diff options
Diffstat (limited to 'drivers')
75 files changed, 41714 insertions, 0 deletions
diff --git a/drivers/fsl_adc16.c b/drivers/fsl_adc16.c new file mode 100644 index 0000000..4fee1a8 --- /dev/null +++ b/drivers/fsl_adc16.c @@ -0,0 +1,364 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_adc16.h" + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Get instance number for ADC16 module. + * + * @param base ADC16 peripheral base address + */ +static uint32_t ADC16_GetInstance(ADC_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/*! @brief Pointers to ADC16 bases for each instance. */ +static ADC_Type *const s_adc16Bases[] = ADC_BASE_PTRS; + +/*! @brief Pointers to ADC16 clocks for each instance. */ +static const clock_ip_name_t s_adc16Clocks[] = ADC16_CLOCKS; + +/******************************************************************************* + * Code + ******************************************************************************/ +static uint32_t ADC16_GetInstance(ADC_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_ADC16_COUNT; instance++) + { + if (s_adc16Bases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_ADC16_COUNT); + + return instance; +} + +void ADC16_Init(ADC_Type *base, const adc16_config_t *config) +{ + assert(NULL != config); + + uint32_t tmp32; + + /* Enable the clock. */ + CLOCK_EnableClock(s_adc16Clocks[ADC16_GetInstance(base)]); + + /* ADCx_CFG1. */ + tmp32 = ADC_CFG1_ADICLK(config->clockSource) | ADC_CFG1_MODE(config->resolution); + if (kADC16_LongSampleDisabled != config->longSampleMode) + { + tmp32 |= ADC_CFG1_ADLSMP_MASK; + } + tmp32 |= ADC_CFG1_ADIV(config->clockDivider); + if (config->enableLowPower) + { + tmp32 |= ADC_CFG1_ADLPC_MASK; + } + base->CFG1 = tmp32; + + /* ADCx_CFG2. */ + tmp32 = base->CFG2 & ~(ADC_CFG2_ADACKEN_MASK | ADC_CFG2_ADHSC_MASK | ADC_CFG2_ADLSTS_MASK); + if (kADC16_LongSampleDisabled != config->longSampleMode) + { + tmp32 |= ADC_CFG2_ADLSTS(config->longSampleMode); + } + if (config->enableHighSpeed) + { + tmp32 |= ADC_CFG2_ADHSC_MASK; + } + if (config->enableAsynchronousClock) + { + tmp32 |= ADC_CFG2_ADACKEN_MASK; + } + base->CFG2 = tmp32; + + /* ADCx_SC2. */ + tmp32 = base->SC2 & ~(ADC_SC2_REFSEL_MASK); + tmp32 |= ADC_SC2_REFSEL(config->referenceVoltageSource); + base->SC2 = tmp32; + + /* ADCx_SC3. */ + if (config->enableContinuousConversion) + { + base->SC3 |= ADC_SC3_ADCO_MASK; + } + else + { + base->SC3 &= ~ADC_SC3_ADCO_MASK; + } +} + +void ADC16_Deinit(ADC_Type *base) +{ + /* Disable the clock. */ + CLOCK_DisableClock(s_adc16Clocks[ADC16_GetInstance(base)]); +} + +void ADC16_GetDefaultConfig(adc16_config_t *config) +{ + assert(NULL != config); + + config->referenceVoltageSource = kADC16_ReferenceVoltageSourceVref; + config->clockSource = kADC16_ClockSourceAsynchronousClock; + config->enableAsynchronousClock = true; + config->clockDivider = kADC16_ClockDivider8; + config->resolution = kADC16_ResolutionSE12Bit; + config->longSampleMode = kADC16_LongSampleDisabled; + config->enableHighSpeed = false; + config->enableLowPower = false; + config->enableContinuousConversion = false; +} + +#if defined(FSL_FEATURE_ADC16_HAS_CALIBRATION) && FSL_FEATURE_ADC16_HAS_CALIBRATION +status_t ADC16_DoAutoCalibration(ADC_Type *base) +{ + bool bHWTrigger = false; + volatile uint32_t tmp32; /* 'volatile' here is for the dummy read of ADCx_R[0] register. */ + status_t status = kStatus_Success; + + /* The calibration would be failed when in hardwar mode. + * Remember the hardware trigger state here and restore it later if the hardware trigger is enabled.*/ + if (0U != (ADC_SC2_ADTRG_MASK & base->SC2)) + { + bHWTrigger = true; + base->SC2 &= ~ADC_SC2_ADTRG_MASK; + } + + /* Clear the CALF and launch the calibration. */ + base->SC3 |= ADC_SC3_CAL_MASK | ADC_SC3_CALF_MASK; + while (0U == (kADC16_ChannelConversionDoneFlag & ADC16_GetChannelStatusFlags(base, 0U))) + { + /* Check the CALF when the calibration is active. */ + if (0U != (kADC16_CalibrationFailedFlag & ADC16_GetStatusFlags(base))) + { + status = kStatus_Fail; + break; + } + } + tmp32 = base->R[0]; /* Dummy read to clear COCO caused by calibration. */ + + /* Restore the hardware trigger setting if it was enabled before. */ + if (bHWTrigger) + { + base->SC2 |= ADC_SC2_ADTRG_MASK; + } + /* Check the CALF at the end of calibration. */ + if (0U != (kADC16_CalibrationFailedFlag & ADC16_GetStatusFlags(base))) + { + status = kStatus_Fail; + } + if (kStatus_Success != status) /* Check if the calibration process is succeed. */ + { + return status; + } + + /* Calculate the calibration values. */ + tmp32 = base->CLP0 + base->CLP1 + base->CLP2 + base->CLP3 + base->CLP4 + base->CLPS; + tmp32 = 0x8000U | (tmp32 >> 1U); + base->PG = tmp32; + +#if defined(FSL_FEATURE_ADC16_HAS_DIFF_MODE) && FSL_FEATURE_ADC16_HAS_DIFF_MODE + tmp32 = base->CLM0 + base->CLM1 + base->CLM2 + base->CLM3 + base->CLM4 + base->CLMS; + tmp32 = 0x8000U | (tmp32 >> 1U); + base->MG = tmp32; +#endif /* FSL_FEATURE_ADC16_HAS_DIFF_MODE */ + + return kStatus_Success; +} +#endif /* FSL_FEATURE_ADC16_HAS_CALIBRATION */ + +#if defined(FSL_FEATURE_ADC16_HAS_MUX_SELECT) && FSL_FEATURE_ADC16_HAS_MUX_SELECT +void ADC16_SetChannelMuxMode(ADC_Type *base, adc16_channel_mux_mode_t mode) +{ + if (kADC16_ChannelMuxA == mode) + { + base->CFG2 &= ~ADC_CFG2_MUXSEL_MASK; + } + else /* kADC16_ChannelMuxB. */ + { + base->CFG2 |= ADC_CFG2_MUXSEL_MASK; + } +} +#endif /* FSL_FEATURE_ADC16_HAS_MUX_SELECT */ + +void ADC16_SetHardwareCompareConfig(ADC_Type *base, const adc16_hardware_compare_config_t *config) +{ + uint32_t tmp32 = base->SC2 & ~(ADC_SC2_ACFE_MASK | ADC_SC2_ACFGT_MASK | ADC_SC2_ACREN_MASK); + + if (!config) /* Pass "NULL" to disable the feature. */ + { + base->SC2 = tmp32; + return; + } + /* Enable the feature. */ + tmp32 |= ADC_SC2_ACFE_MASK; + + /* Select the hardware compare working mode. */ + switch (config->hardwareCompareMode) + { + case kADC16_HardwareCompareMode0: + break; + case kADC16_HardwareCompareMode1: + tmp32 |= ADC_SC2_ACFGT_MASK; + break; + case kADC16_HardwareCompareMode2: + tmp32 |= ADC_SC2_ACREN_MASK; + break; + case kADC16_HardwareCompareMode3: + tmp32 |= ADC_SC2_ACFGT_MASK | ADC_SC2_ACREN_MASK; + break; + default: + break; + } + base->SC2 = tmp32; + + /* Load the compare values. */ + base->CV1 = ADC_CV1_CV(config->value1); + base->CV2 = ADC_CV2_CV(config->value2); +} + +#if defined(FSL_FEATURE_ADC16_HAS_HW_AVERAGE) && FSL_FEATURE_ADC16_HAS_HW_AVERAGE +void ADC16_SetHardwareAverage(ADC_Type *base, adc16_hardware_average_mode_t mode) +{ + uint32_t tmp32 = base->SC3 & ~(ADC_SC3_AVGE_MASK | ADC_SC3_AVGS_MASK); + + if (kADC16_HardwareAverageDisabled != mode) + { + tmp32 |= ADC_SC3_AVGE_MASK | ADC_SC3_AVGS(mode); + } + base->SC3 = tmp32; +} +#endif /* FSL_FEATURE_ADC16_HAS_HW_AVERAGE */ + +#if defined(FSL_FEATURE_ADC16_HAS_PGA) && FSL_FEATURE_ADC16_HAS_PGA +void ADC16_SetPGAConfig(ADC_Type *base, const adc16_pga_config_t *config) +{ + uint32_t tmp32; + + if (!config) /* Passing "NULL" is to disable the feature. */ + { + base->PGA = 0U; + return; + } + + /* Enable the PGA and set the gain value. */ + tmp32 = ADC_PGA_PGAEN_MASK | ADC_PGA_PGAG(config->pgaGain); + + /* Configure the misc features for PGA. */ + if (config->enableRunInNormalMode) + { + tmp32 |= ADC_PGA_PGALPb_MASK; + } +#if defined(FSL_FEATURE_ADC16_HAS_PGA_CHOPPING) && FSL_FEATURE_ADC16_HAS_PGA_CHOPPING + if (config->disablePgaChopping) + { + tmp32 |= ADC_PGA_PGACHPb_MASK; + } +#endif /* FSL_FEATURE_ADC16_HAS_PGA_CHOPPING */ +#if defined(FSL_FEATURE_ADC16_HAS_PGA_OFFSET_MEASUREMENT) && FSL_FEATURE_ADC16_HAS_PGA_OFFSET_MEASUREMENT + if (config->enableRunInOffsetMeasurement) + { + tmp32 |= ADC_PGA_PGAOFSM_MASK; + } +#endif /* FSL_FEATURE_ADC16_HAS_PGA_OFFSET_MEASUREMENT */ + base->PGA = tmp32; +} +#endif /* FSL_FEATURE_ADC16_HAS_PGA */ + +uint32_t ADC16_GetStatusFlags(ADC_Type *base) +{ + uint32_t ret = 0; + + if (0U != (base->SC2 & ADC_SC2_ADACT_MASK)) + { + ret |= kADC16_ActiveFlag; + } +#if defined(FSL_FEATURE_ADC16_HAS_CALIBRATION) && FSL_FEATURE_ADC16_HAS_CALIBRATION + if (0U != (base->SC3 & ADC_SC3_CALF_MASK)) + { + ret |= kADC16_CalibrationFailedFlag; + } +#endif /* FSL_FEATURE_ADC16_HAS_CALIBRATION */ + return ret; +} + +void ADC16_ClearStatusFlags(ADC_Type *base, uint32_t mask) +{ +#if defined(FSL_FEATURE_ADC16_HAS_CALIBRATION) && FSL_FEATURE_ADC16_HAS_CALIBRATION + if (0U != (mask & kADC16_CalibrationFailedFlag)) + { + base->SC3 |= ADC_SC3_CALF_MASK; + } +#endif /* FSL_FEATURE_ADC16_HAS_CALIBRATION */ +} + +void ADC16_SetChannelConfig(ADC_Type *base, uint32_t channelGroup, const adc16_channel_config_t *config) +{ + assert(channelGroup < ADC_SC1_COUNT); + assert(NULL != config); + + uint32_t sc1 = ADC_SC1_ADCH(config->channelNumber); /* Set the channel number. */ + +#if defined(FSL_FEATURE_ADC16_HAS_DIFF_MODE) && FSL_FEATURE_ADC16_HAS_DIFF_MODE + /* Enable the differential conversion. */ + if (config->enableDifferentialConversion) + { + sc1 |= ADC_SC1_DIFF_MASK; + } +#endif /* FSL_FEATURE_ADC16_HAS_DIFF_MODE */ + /* Enable the interrupt when the conversion is done. */ + if (config->enableInterruptOnConversionCompleted) + { + sc1 |= ADC_SC1_AIEN_MASK; + } + base->SC1[channelGroup] = sc1; +} + +uint32_t ADC16_GetChannelStatusFlags(ADC_Type *base, uint32_t channelGroup) +{ + assert(channelGroup < ADC_SC1_COUNT); + + uint32_t ret = 0U; + + if (0U != (base->SC1[channelGroup] & ADC_SC1_COCO_MASK)) + { + ret |= kADC16_ChannelConversionDoneFlag; + } + return ret; +} diff --git a/drivers/fsl_adc16.h b/drivers/fsl_adc16.h new file mode 100644 index 0000000..7f5169a --- /dev/null +++ b/drivers/fsl_adc16.h @@ -0,0 +1,526 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_ADC16_H_ +#define _FSL_ADC16_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup adc16 + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief ADC16 driver version 2.0.0. */ +#define FSL_ADC16_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) +/*@}*/ + +/*! + * @brief Channel status flags. + */ +enum _adc16_channel_status_flags +{ + kADC16_ChannelConversionDoneFlag = ADC_SC1_COCO_MASK, /*!< Conversion done. */ +}; + +/*! + * @brief Converter status flags. + */ +enum _adc16_status_flags +{ + kADC16_ActiveFlag = ADC_SC2_ADACT_MASK, /*!< Converter is active. */ +#if defined(FSL_FEATURE_ADC16_HAS_CALIBRATION) && FSL_FEATURE_ADC16_HAS_CALIBRATION + kADC16_CalibrationFailedFlag = ADC_SC3_CALF_MASK, /*!< Calibration is failed. */ +#endif /* FSL_FEATURE_ADC16_HAS_CALIBRATION */ +}; + +#if defined(FSL_FEATURE_ADC16_HAS_MUX_SELECT) && FSL_FEATURE_ADC16_HAS_MUX_SELECT +/*! + * @brief Channel multiplexer mode for each channel. + * + * For some ADC16 channels, there are two pin selections in channel multiplexer. For example, ADC0_SE4a and ADC0_SE4b + * are the different channels but share the same channel number. + */ +typedef enum _adc_channel_mux_mode +{ + kADC16_ChannelMuxA = 0U, /*!< For channel with channel mux a. */ + kADC16_ChannelMuxB = 1U, /*!< For channel with channel mux b. */ +} adc16_channel_mux_mode_t; +#endif /* FSL_FEATURE_ADC16_HAS_MUX_SELECT */ + +/*! + * @brief Clock divider for the converter. + */ +typedef enum _adc16_clock_divider +{ + kADC16_ClockDivider1 = 0U, /*!< For divider 1 from the input clock to the module. */ + kADC16_ClockDivider2 = 1U, /*!< For divider 2 from the input clock to the module. */ + kADC16_ClockDivider4 = 2U, /*!< For divider 4 from the input clock to the module. */ + kADC16_ClockDivider8 = 3U, /*!< For divider 8 from the input clock to the module. */ +} adc16_clock_divider_t; + +/*! + *@brief Converter's resolution. + */ +typedef enum _adc16_resolution +{ + /* This group of enumeration is for internal use which is related to register setting. */ + kADC16_Resolution8or9Bit = 0U, /*!< Single End 8-bit or Differential Sample 9-bit. */ + kADC16_Resolution12or13Bit = 1U, /*!< Single End 12-bit or Differential Sample 13-bit. */ + kADC16_Resolution10or11Bit = 2U, /*!< Single End 10-bit or Differential Sample 11-bit. */ + + /* This group of enumeration is for public user. */ + kADC16_ResolutionSE8Bit = kADC16_Resolution8or9Bit, /*!< Single End 8-bit. */ + kADC16_ResolutionSE12Bit = kADC16_Resolution12or13Bit, /*!< Single End 12-bit. */ + kADC16_ResolutionSE10Bit = kADC16_Resolution10or11Bit, /*!< Single End 10-bit. */ +#if defined(FSL_FEATURE_ADC16_HAS_DIFF_MODE) && FSL_FEATURE_ADC16_HAS_DIFF_MODE + kADC16_ResolutionDF9Bit = kADC16_Resolution8or9Bit, /*!< Differential Sample 9-bit. */ + kADC16_ResolutionDF13Bit = kADC16_Resolution12or13Bit, /*!< Differential Sample 13-bit. */ + kADC16_ResolutionDF11Bit = kADC16_Resolution10or11Bit, /*!< Differential Sample 11-bit. */ +#endif /* FSL_FEATURE_ADC16_HAS_DIFF_MODE */ + +#if defined(FSL_FEATURE_ADC16_MAX_RESOLUTION) && (FSL_FEATURE_ADC16_MAX_RESOLUTION >= 16U) + /* 16-bit is supported by default. */ + kADC16_Resolution16Bit = 3U, /*!< Single End 16-bit or Differential Sample 16-bit. */ + kADC16_ResolutionSE16Bit = kADC16_Resolution16Bit, /*!< Single End 16-bit. */ +#if defined(FSL_FEATURE_ADC16_HAS_DIFF_MODE) && FSL_FEATURE_ADC16_HAS_DIFF_MODE + kADC16_ResolutionDF16Bit = kADC16_Resolution16Bit, /*!< Differential Sample 16-bit. */ +#endif /* FSL_FEATURE_ADC16_HAS_DIFF_MODE */ +#endif /* FSL_FEATURE_ADC16_MAX_RESOLUTION >= 16U */ +} adc16_resolution_t; + +/*! + * @brief Clock source. + */ +typedef enum _adc16_clock_source +{ + kADC16_ClockSourceAlt0 = 0U, /*!< Selection 0 of the clock source. */ + kADC16_ClockSourceAlt1 = 1U, /*!< Selection 1 of the clock source. */ + kADC16_ClockSourceAlt2 = 2U, /*!< Selection 2 of the clock source. */ + kADC16_ClockSourceAlt3 = 3U, /*!< Selection 3 of the clock source. */ + + /* Chip defined clock source */ + kADC16_ClockSourceAsynchronousClock = kADC16_ClockSourceAlt3, /*!< Using internal asynchronous clock. */ +} adc16_clock_source_t; + +/*! + * @brief Long sample mode. + */ +typedef enum _adc16_long_sample_mode +{ + kADC16_LongSampleCycle24 = 0U, /*!< 20 extra ADCK cycles, 24 ADCK cycles total. */ + kADC16_LongSampleCycle16 = 1U, /*!< 12 extra ADCK cycles, 16 ADCK cycles total. */ + kADC16_LongSampleCycle10 = 2U, /*!< 6 extra ADCK cycles, 10 ADCK cycles total. */ + kADC16_LongSampleCycle6 = 3U, /*!< 2 extra ADCK cycles, 6 ADCK cycles total. */ + kADC16_LongSampleDisabled = 4U, /*!< Disable the long sample feature. */ +} adc16_long_sample_mode_t; + +/*! + * @brief Reference voltage source. + */ +typedef enum _adc16_reference_voltage_source +{ + kADC16_ReferenceVoltageSourceVref = 0U, /*!< For external pins pair of VrefH and VrefL. */ + kADC16_ReferenceVoltageSourceValt = 1U, /*!< For alternate reference pair of ValtH and ValtL. */ +} adc16_reference_voltage_source_t; + +#if defined(FSL_FEATURE_ADC16_HAS_HW_AVERAGE) && FSL_FEATURE_ADC16_HAS_HW_AVERAGE +/*! + * @brief Hardware average mode. + */ +typedef enum _adc16_hardware_average_mode +{ + kADC16_HardwareAverageCount4 = 0U, /*!< For hardware average with 4 samples. */ + kADC16_HardwareAverageCount8 = 1U, /*!< For hardware average with 8 samples. */ + kADC16_HardwareAverageCount16 = 2U, /*!< For hardware average with 16 samples. */ + kADC16_HardwareAverageCount32 = 3U, /*!< For hardware average with 32 samples. */ + kADC16_HardwareAverageDisabled = 4U, /*!< Disable the hardware average feature.*/ +} adc16_hardware_average_mode_t; +#endif /* FSL_FEATURE_ADC16_HAS_HW_AVERAGE */ + +/*! + * @brief Hardware compare mode. + */ +typedef enum _adc16_hardware_compare_mode +{ + kADC16_HardwareCompareMode0 = 0U, /*!< x < value1. */ + kADC16_HardwareCompareMode1 = 1U, /*!< x > value1. */ + kADC16_HardwareCompareMode2 = 2U, /*!< if value1 <= value2, then x < value1 || x > value2; + else, value1 > x > value2. */ + kADC16_HardwareCompareMode3 = 3U, /*!< if value1 <= value2, then value1 <= x <= value2; + else x >= value1 || x <= value2. */ +} adc16_hardware_compare_mode_t; + +#if defined(FSL_FEATURE_ADC16_HAS_PGA) && FSL_FEATURE_ADC16_HAS_PGA +/*! + * @brief PGA's Gain mode. + */ +typedef enum _adc16_pga_gain +{ + kADC16_PGAGainValueOf1 = 0U, /*!< For amplifier gain of 1. */ + kADC16_PGAGainValueOf2 = 1U, /*!< For amplifier gain of 2. */ + kADC16_PGAGainValueOf4 = 2U, /*!< For amplifier gain of 4. */ + kADC16_PGAGainValueOf8 = 3U, /*!< For amplifier gain of 8. */ + kADC16_PGAGainValueOf16 = 4U, /*!< For amplifier gain of 16. */ + kADC16_PGAGainValueOf32 = 5U, /*!< For amplifier gain of 32. */ + kADC16_PGAGainValueOf64 = 6U, /*!< For amplifier gain of 64. */ +} adc16_pga_gain_t; +#endif /* FSL_FEATURE_ADC16_HAS_PGA */ + +/*! + * @brief ADC16 converter configuration . + */ +typedef struct _adc16_config +{ + adc16_reference_voltage_source_t referenceVoltageSource; /*!< Select the reference voltage source. */ + adc16_clock_source_t clockSource; /*!< Select the input clock source to converter. */ + bool enableAsynchronousClock; /*!< Enable the asynchronous clock output. */ + adc16_clock_divider_t clockDivider; /*!< Select the divider of input clock source. */ + adc16_resolution_t resolution; /*!< Select the sample resolution mode. */ + adc16_long_sample_mode_t longSampleMode; /*!< Select the long sample mode. */ + bool enableHighSpeed; /*!< Enable the high-speed mode. */ + bool enableLowPower; /*!< Enable low power. */ + bool enableContinuousConversion; /*!< Enable continuous conversion mode. */ +} adc16_config_t; + +/*! + * @brief ADC16 Hardware compare configuration. + */ +typedef struct _adc16_hardware_compare_config +{ + adc16_hardware_compare_mode_t hardwareCompareMode; /*!< Select the hardware compare mode. + See "adc16_hardware_compare_mode_t". */ + int16_t value1; /*!< Setting value1 for hardware compare mode. */ + int16_t value2; /*!< Setting value2 for hardware compare mode. */ +} adc16_hardware_compare_config_t; + +/*! + * @brief ADC16 channel conversion configuration. + */ +typedef struct _adc16_channel_config +{ + uint32_t channelNumber; /*!< Setting the conversion channel number. The available range is 0-31. + See channel connection information for each chip in Reference + Manual document. */ + bool enableInterruptOnConversionCompleted; /*!< Generate an interrupt request once the conversion is completed. */ +#if defined(FSL_FEATURE_ADC16_HAS_DIFF_MODE) && FSL_FEATURE_ADC16_HAS_DIFF_MODE + bool enableDifferentialConversion; /*!< Using Differential sample mode. */ +#endif /* FSL_FEATURE_ADC16_HAS_DIFF_MODE */ +} adc16_channel_config_t; + +#if defined(FSL_FEATURE_ADC16_HAS_PGA) && FSL_FEATURE_ADC16_HAS_PGA +/*! + * @brief ADC16 programmable gain amplifier configuration. + */ +typedef struct _adc16_pga_config +{ + adc16_pga_gain_t pgaGain; /*!< Setting PGA gain. */ + bool enableRunInNormalMode; /*!< Enable PGA working in normal mode, or low power mode by default. */ +#if defined(FSL_FEATURE_ADC16_HAS_PGA_CHOPPING) && FSL_FEATURE_ADC16_HAS_PGA_CHOPPING + bool disablePgaChopping; /*!< Disable the PGA chopping function. + The PGA employs chopping to remove/reduce offset and 1/f noise and offers + an offset measurement configuration that aids the offset calibration. */ +#endif /* FSL_FEATURE_ADC16_HAS_PGA_CHOPPING */ +#if defined(FSL_FEATURE_ADC16_HAS_PGA_OFFSET_MEASUREMENT) && FSL_FEATURE_ADC16_HAS_PGA_OFFSET_MEASUREMENT + bool enableRunInOffsetMeasurement; /*!< Enable the PGA working in offset measurement mode. + When this feature is enabled, the PGA disconnects itself from the external + inputs and auto-configures into offset measurement mode. With this field + set, run the ADC in the recommended settings and enable the maximum hardware + averaging to get the PGA offset number. The output is the + (PGA offset * (64+1)) for the given PGA setting. */ +#endif /* FSL_FEATURE_ADC16_HAS_PGA_OFFSET_MEASUREMENT */ +} adc16_pga_config_t; +#endif /* FSL_FEATURE_ADC16_HAS_PGA */ + +#if defined(__cplusplus) +extern "C" { +#endif + +/******************************************************************************* + * API + ******************************************************************************/ + +/*! + * @name Initialization + * @{ + */ + +/*! + * @brief Initializes the ADC16 module. + * + * @param base ADC16 peripheral base address. + * @param config Pointer to configuration structure. See "adc16_config_t". + */ +void ADC16_Init(ADC_Type *base, const adc16_config_t *config); + +/*! + * @brief De-initializes the ADC16 module. + * + * @param base ADC16 peripheral base address. + */ +void ADC16_Deinit(ADC_Type *base); + +/*! + * @brief Gets an available pre-defined settings for converter's configuration. + * + * This function initializes the converter configuration structure with an available settings. The default values are: + * @code + * config->referenceVoltageSource = kADC16_ReferenceVoltageSourceVref; + * config->clockSource = kADC16_ClockSourceAsynchronousClock; + * config->enableAsynchronousClock = true; + * config->clockDivider = kADC16_ClockDivider8; + * config->resolution = kADC16_ResolutionSE12Bit; + * config->longSampleMode = kADC16_LongSampleDisabled; + * config->enableHighSpeed = false; + * config->enableLowPower = false; + * config->enableContinuousConversion = false; + * @endcode + * @param config Pointer to configuration structure. + */ +void ADC16_GetDefaultConfig(adc16_config_t *config); + +#if defined(FSL_FEATURE_ADC16_HAS_CALIBRATION) && FSL_FEATURE_ADC16_HAS_CALIBRATION +/*! + * @brief Automates the hardware calibration. + * + * This auto calibration helps to adjust the plus/minus side gain automatically on the converter's working situation. + * Execute the calibration before using the converter. Note that the hardware trigger should be used + * during calibration. + * + * @param base ADC16 peripheral base address. + * + * @return Execution status. + * @retval kStatus_Success Calibration is done successfully. + * @retval kStatus_Fail Calibration is failed. + */ +status_t ADC16_DoAutoCalibration(ADC_Type *base); +#endif /* FSL_FEATURE_ADC16_HAS_CALIBRATION */ + +#if defined(FSL_FEATURE_ADC16_HAS_OFFSET_CORRECTION) && FSL_FEATURE_ADC16_HAS_OFFSET_CORRECTION +/*! + * @brief Sets the offset value for the conversion result. + * + * This offset value takes effect on the conversion result. If the offset value is not zero, the reading result + * is subtracted by it. Note, the hardware calibration fills the offset value automatically. + * + * @param base ADC16 peripheral base address. + * @param value Setting offset value. + */ +static inline void ADC16_SetOffsetValue(ADC_Type *base, int16_t value) +{ + base->OFS = (uint32_t)(value); +} +#endif /* FSL_FEATURE_ADC16_HAS_OFFSET_CORRECTION */ + +/* @} */ + +/*! + * @name Advanced Feature + * @{ + */ + +#if defined(FSL_FEATURE_ADC16_HAS_DMA) && FSL_FEATURE_ADC16_HAS_DMA +/*! + * @brief Enables generating the DMA trigger when conversion is completed. + * + * @param base ADC16 peripheral base address. + * @param enable Switcher of DMA feature. "true" means to enable, "false" means not. + */ +static inline void ADC16_EnableDMA(ADC_Type *base, bool enable) +{ + if (enable) + { + base->SC2 |= ADC_SC2_DMAEN_MASK; + } + else + { + base->SC2 &= ~ADC_SC2_DMAEN_MASK; + } +} +#endif /* FSL_FEATURE_ADC16_HAS_DMA */ + +/*! + * @brief Enables the hardware trigger mode. + * + * @param base ADC16 peripheral base address. + * @param enable Switcher of hardware trigger feature. "true" means to enable, "false" means not. + */ +static inline void ADC16_EnableHardwareTrigger(ADC_Type *base, bool enable) +{ + if (enable) + { + base->SC2 |= ADC_SC2_ADTRG_MASK; + } + else + { + base->SC2 &= ~ADC_SC2_ADTRG_MASK; + } +} + +#if defined(FSL_FEATURE_ADC16_HAS_MUX_SELECT) && FSL_FEATURE_ADC16_HAS_MUX_SELECT +/*! + * @brief Sets the channel mux mode. + * + * Some sample pins share the same channel index. The channel mux mode decides which pin is used for an + * indicated channel. + * + * @param base ADC16 peripheral base address. + * @param mode Setting channel mux mode. See "adc16_channel_mux_mode_t". + */ +void ADC16_SetChannelMuxMode(ADC_Type *base, adc16_channel_mux_mode_t mode); +#endif /* FSL_FEATURE_ADC16_HAS_MUX_SELECT */ + +/*! + * @brief Configures the hardware compare mode. + * + * The hardware compare mode provides a way to process the conversion result automatically by hardware. Only the result + * in + * compare range is available. To compare the range, see "adc16_hardware_compare_mode_t", or the reference + * manual document for more detailed information. + * + * @param base ADC16 peripheral base address. + * @param config Pointer to "adc16_hardware_compare_config_t" structure. Passing "NULL" is to disable the feature. + */ +void ADC16_SetHardwareCompareConfig(ADC_Type *base, const adc16_hardware_compare_config_t *config); + +#if defined(FSL_FEATURE_ADC16_HAS_HW_AVERAGE) && FSL_FEATURE_ADC16_HAS_HW_AVERAGE +/*! + * @brief Sets the hardware average mode. + * + * Hardware average mode provides a way to process the conversion result automatically by hardware. The multiple + * conversion results are accumulated and averaged internally. This aids reading results. + * + * @param base ADC16 peripheral base address. + * @param mode Setting hardware average mode. See "adc16_hardware_average_mode_t". + */ +void ADC16_SetHardwareAverage(ADC_Type *base, adc16_hardware_average_mode_t mode); +#endif /* FSL_FEATURE_ADC16_HAS_HW_AVERAGE */ + +#if defined(FSL_FEATURE_ADC16_HAS_PGA) && FSL_FEATURE_ADC16_HAS_PGA +/*! + * @brief Configures the PGA for converter's front end. + * + * @param base ADC16 peripheral base address. + * @param config Pointer to "adc16_pga_config_t" structure. Passing "NULL" is to disable the feature. + */ +void ADC16_SetPGAConfig(ADC_Type *base, const adc16_pga_config_t *config); +#endif /* FSL_FEATURE_ADC16_HAS_PGA */ + +/*! + * @brief Gets the status flags of the converter. + * + * @param base ADC16 peripheral base address. + * + * @return Flags' mask if indicated flags are asserted. See "_adc16_status_flags". + */ +uint32_t ADC16_GetStatusFlags(ADC_Type *base); + +/*! + * @brief Clears the status flags of the converter. + * + * @param base ADC16 peripheral base address. + * @param mask Mask value for the cleared flags. See "_adc16_status_flags". + */ +void ADC16_ClearStatusFlags(ADC_Type *base, uint32_t mask); + +/* @} */ + +/*! + * @name Conversion Channel + * @{ + */ + +/*! + * @brief Configures the conversion channel. + * + * This operation triggers the conversion if in software trigger mode. When in hardware trigger mode, this API + * configures the channel while the external trigger source helps to trigger the conversion. + * + * Note that the "Channel Group" has a detailed description. + * To allow sequential conversions of the ADC to be triggered by internal peripherals, the ADC can have more than one + * group of status and control register, one for each conversion. The channel group parameter indicates which group of + * registers are used channel group 0 is for Group A registers and channel group 1 is for Group B registers. The + * channel groups are used in a "ping-pong" approach to control the ADC operation. At any point, only one of + * the channel groups is actively controlling ADC conversions. Channel group 0 is used for both software and hardware + * trigger modes of operation. Channel groups 1 and greater indicate potentially multiple channel group registers for + * use only in hardware trigger mode. See the chip configuration information in the MCU reference manual about the + * number of SC1n registers (channel groups) specific to this device. None of the channel groups 1 or greater are used + * for software trigger operation and therefore writes to these channel groups do not initiate a new conversion. + * Updating channel group 0 while a different channel group is actively controlling a conversion is allowed and + * vice versa. Writing any of the channel group registers while that specific channel group is actively controlling a + * conversion aborts the current conversion. + * + * @param base ADC16 peripheral base address. + * @param channelGroup Channel group index. + * @param config Pointer to "adc16_channel_config_t" structure for conversion channel. + */ +void ADC16_SetChannelConfig(ADC_Type *base, uint32_t channelGroup, const adc16_channel_config_t *config); + +/*! + * @brief Gets the conversion value. + * + * @param base ADC16 peripheral base address. + * @param channelGroup Channel group index. + * + * @return Conversion value. + */ +static inline uint32_t ADC16_GetChannelConversionValue(ADC_Type *base, uint32_t channelGroup) +{ + assert(channelGroup < ADC_R_COUNT); + + return base->R[channelGroup]; +} + +/*! + * @brief Gets the status flags of channel. + * + * @param base ADC16 peripheral base address. + * @param channelGroup Channel group index. + * + * @return Flags' mask if indicated flags are asserted. See "_adc16_channel_status_flags". + */ +uint32_t ADC16_GetChannelStatusFlags(ADC_Type *base, uint32_t channelGroup); + +/* @} */ + +#if defined(__cplusplus) +} +#endif +/*! + * @} + */ +#endif /* _FSL_ADC16_H_ */ diff --git a/drivers/fsl_clock.c b/drivers/fsl_clock.c new file mode 100644 index 0000000..b5549aa --- /dev/null +++ b/drivers/fsl_clock.c @@ -0,0 +1,1751 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_common.h" +#include "fsl_clock.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/* Macro definition remap workaround. */ +#if (defined(MCG_C2_EREFS_MASK) && !(defined(MCG_C2_EREFS0_MASK))) +#define MCG_C2_EREFS0_MASK MCG_C2_EREFS_MASK +#endif +#if (defined(MCG_C2_HGO_MASK) && !(defined(MCG_C2_HGO0_MASK))) +#define MCG_C2_HGO0_MASK MCG_C2_HGO_MASK +#endif +#if (defined(MCG_C2_RANGE_MASK) && !(defined(MCG_C2_RANGE0_MASK))) +#define MCG_C2_RANGE0_MASK MCG_C2_RANGE_MASK +#endif +#if (defined(MCG_C6_CME_MASK) && !(defined(MCG_C6_CME0_MASK))) +#define MCG_C6_CME0_MASK MCG_C6_CME_MASK +#endif + +/* PLL fixed multiplier when there is not PRDIV and VDIV. */ +#define PLL_FIXED_MULT (375U) +/* Max frequency of the reference clock used for internal clock trim. */ +#define TRIM_REF_CLK_MIN (8000000U) +/* Min frequency of the reference clock used for internal clock trim. */ +#define TRIM_REF_CLK_MAX (16000000U) +/* Max trim value of fast internal reference clock. */ +#define TRIM_FIRC_MAX (5000000U) +/* Min trim value of fast internal reference clock. */ +#define TRIM_FIRC_MIN (3000000U) +/* Max trim value of fast internal reference clock. */ +#define TRIM_SIRC_MAX (39063U) +/* Min trim value of fast internal reference clock. */ +#define TRIM_SIRC_MIN (31250U) + +#define MCG_S_IRCST_VAL ((MCG->S & MCG_S_IRCST_MASK) >> MCG_S_IRCST_SHIFT) +#define MCG_S_CLKST_VAL ((MCG->S & MCG_S_CLKST_MASK) >> MCG_S_CLKST_SHIFT) +#define MCG_S_IREFST_VAL ((MCG->S & MCG_S_IREFST_MASK) >> MCG_S_IREFST_SHIFT) +#define MCG_S_PLLST_VAL ((MCG->S & MCG_S_PLLST_MASK) >> MCG_S_PLLST_SHIFT) +#define MCG_C1_FRDIV_VAL ((MCG->C1 & MCG_C1_FRDIV_MASK) >> MCG_C1_FRDIV_SHIFT) +#define MCG_C2_LP_VAL ((MCG->C2 & MCG_C2_LP_MASK) >> MCG_C2_LP_SHIFT) +#define MCG_C2_RANGE_VAL ((MCG->C2 & MCG_C2_RANGE_MASK) >> MCG_C2_RANGE_SHIFT) +#define MCG_SC_FCRDIV_VAL ((MCG->SC & MCG_SC_FCRDIV_MASK) >> MCG_SC_FCRDIV_SHIFT) +#define MCG_S2_PLLCST_VAL ((MCG->S2 & MCG_S2_PLLCST_MASK) >> MCG_S2_PLLCST_SHIFT) +#define MCG_C7_OSCSEL_VAL ((MCG->C7 & MCG_C7_OSCSEL_MASK) >> MCG_C7_OSCSEL_SHIFT) +#define MCG_C4_DMX32_VAL ((MCG->C4 & MCG_C4_DMX32_MASK) >> MCG_C4_DMX32_SHIFT) +#define MCG_C4_DRST_DRS_VAL ((MCG->C4 & MCG_C4_DRST_DRS_MASK) >> MCG_C4_DRST_DRS_SHIFT) +#define MCG_C7_PLL32KREFSEL_VAL ((MCG->C7 & MCG_C7_PLL32KREFSEL_MASK) >> MCG_C7_PLL32KREFSEL_SHIFT) +#define MCG_C5_PLLREFSEL0_VAL ((MCG->C5 & MCG_C5_PLLREFSEL0_MASK) >> MCG_C5_PLLREFSEL0_SHIFT) +#define MCG_C11_PLLREFSEL1_VAL ((MCG->C11 & MCG_C11_PLLREFSEL1_MASK) >> MCG_C11_PLLREFSEL1_SHIFT) +#define MCG_C11_PRDIV1_VAL ((MCG->C11 & MCG_C11_PRDIV1_MASK) >> MCG_C11_PRDIV1_SHIFT) +#define MCG_C12_VDIV1_VAL ((MCG->C12 & MCG_C12_VDIV1_MASK) >> MCG_C12_VDIV1_SHIFT) +#define MCG_C5_PRDIV0_VAL ((MCG->C5 & MCG_C5_PRDIV0_MASK) >> MCG_C5_PRDIV0_SHIFT) +#define MCG_C6_VDIV0_VAL ((MCG->C6 & MCG_C6_VDIV0_MASK) >> MCG_C6_VDIV0_SHIFT) + +#define OSC_MODE_MASK (MCG_C2_EREFS0_MASK | MCG_C2_HGO0_MASK | MCG_C2_RANGE0_MASK) + +#define SIM_CLKDIV1_OUTDIV1_VAL ((SIM->CLKDIV1 & SIM_CLKDIV1_OUTDIV1_MASK) >> SIM_CLKDIV1_OUTDIV1_SHIFT) +#define SIM_CLKDIV1_OUTDIV2_VAL ((SIM->CLKDIV1 & SIM_CLKDIV1_OUTDIV2_MASK) >> SIM_CLKDIV1_OUTDIV2_SHIFT) +#define SIM_CLKDIV1_OUTDIV3_VAL ((SIM->CLKDIV1 & SIM_CLKDIV1_OUTDIV3_MASK) >> SIM_CLKDIV1_OUTDIV3_SHIFT) +#define SIM_CLKDIV1_OUTDIV4_VAL ((SIM->CLKDIV1 & SIM_CLKDIV1_OUTDIV4_MASK) >> SIM_CLKDIV1_OUTDIV4_SHIFT) +#define SIM_SOPT1_OSC32KSEL_VAL ((SIM->SOPT1 & SIM_SOPT1_OSC32KSEL_MASK) >> SIM_SOPT1_OSC32KSEL_SHIFT) +#define SIM_SOPT2_PLLFLLSEL_VAL ((SIM->SOPT2 & SIM_SOPT2_PLLFLLSEL_MASK) >> SIM_SOPT2_PLLFLLSEL_SHIFT) + +/* MCG_S_CLKST definition. */ +enum _mcg_clkout_stat +{ + kMCG_ClkOutStatFll, /* FLL. */ + kMCG_ClkOutStatInt, /* Internal clock. */ + kMCG_ClkOutStatExt, /* External clock. */ + kMCG_ClkOutStatPll /* PLL. */ +}; + +/* MCG_S_PLLST definition. */ +enum _mcg_pllst +{ + kMCG_PllstFll, /* FLL is used. */ + kMCG_PllstPll /* PLL is used. */ +}; + +/******************************************************************************* + * Variables + ******************************************************************************/ + +/* Slow internal reference clock frequency. */ +static uint32_t s_slowIrcFreq = 32768U; +/* Fast internal reference clock frequency. */ +static uint32_t s_fastIrcFreq = 4000000U; + +/* External XTAL0 (OSC0) clock frequency. */ +uint32_t g_xtal0Freq; +/* External XTAL32K clock frequency. */ +uint32_t g_xtal32Freq; + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/*! + * @brief Get the MCG external reference clock frequency. + * + * Get the current MCG external reference clock frequency in Hz. It is + * the frequency select by MCG_C7[OSCSEL]. This is an internal function. + * + * @return MCG external reference clock frequency in Hz. + */ +static uint32_t CLOCK_GetMcgExtClkFreq(void); + +/*! + * @brief Get the MCG FLL external reference clock frequency. + * + * Get the current MCG FLL external reference clock frequency in Hz. It is + * the frequency after by MCG_C1[FRDIV]. This is an internal function. + * + * @return MCG FLL external reference clock frequency in Hz. + */ +static uint32_t CLOCK_GetFllExtRefClkFreq(void); + +/*! + * @brief Get the MCG FLL reference clock frequency. + * + * Get the current MCG FLL reference clock frequency in Hz. It is + * the frequency select by MCG_C1[IREFS]. This is an internal function. + * + * @return MCG FLL reference clock frequency in Hz. + */ +static uint32_t CLOCK_GetFllRefClkFreq(void); + +/*! + * @brief Get the frequency of clock selected by MCG_C2[IRCS]. + * + * This clock's two output: + * 1. MCGOUTCLK when MCG_S[CLKST]=0. + * 2. MCGIRCLK when MCG_C1[IRCLKEN]=1. + * + * @return The frequency in Hz. + */ +static uint32_t CLOCK_GetInternalRefClkSelectFreq(void); + +/*! + * @brief Get the MCG PLL/PLL0 reference clock frequency. + * + * Get the current MCG PLL/PLL0 reference clock frequency in Hz. + * This is an internal function. + * + * @return MCG PLL/PLL0 reference clock frequency in Hz. + */ +static uint32_t CLOCK_GetPll0RefFreq(void); + +/*! + * @brief Calculate the RANGE value base on crystal frequency. + * + * To setup external crystal oscillator, must set the register bits RANGE + * base on the crystal frequency. This function returns the RANGE base on the + * input frequency. This is an internal function. + * + * @param freq Crystal frequency in Hz. + * @return The RANGE value. + */ +static uint8_t CLOCK_GetOscRangeFromFreq(uint32_t freq); + +/*! + * @brief Delay function to wait FLL stable. + * + * Delay function to wait FLL stable in FEI mode or FEE mode, should wait at least + * 1ms. Every time changes FLL setting, should wait this time for FLL stable. + */ +static void CLOCK_FllStableDelay(void); + +/******************************************************************************* + * Code + ******************************************************************************/ + +static uint32_t CLOCK_GetMcgExtClkFreq(void) +{ + uint32_t freq; + + switch (MCG_C7_OSCSEL_VAL) + { + case 0U: + /* Please call CLOCK_SetXtal0Freq base on board setting before using OSC0 clock. */ + assert(g_xtal0Freq); + freq = g_xtal0Freq; + break; + case 1U: + /* Please call CLOCK_SetXtal32Freq base on board setting before using XTAL32K/RTC_CLKIN clock. */ + assert(g_xtal32Freq); + freq = g_xtal32Freq; + break; + default: + freq = 0U; + break; + } + + return freq; +} + +static uint32_t CLOCK_GetFllExtRefClkFreq(void) +{ + /* FllExtRef = McgExtRef / FllExtRefDiv */ + uint8_t frdiv; + uint8_t range; + uint8_t oscsel; + + uint32_t freq = CLOCK_GetMcgExtClkFreq(); + + if (!freq) + { + return freq; + } + + frdiv = MCG_C1_FRDIV_VAL; + freq >>= frdiv; + + range = MCG_C2_RANGE_VAL; + oscsel = MCG_C7_OSCSEL_VAL; + + /* + When should use divider 32, 64, 128, 256, 512, 1024, 1280, 1536. + 1. MCG_C7[OSCSEL] selects IRC48M. + 2. MCG_C7[OSCSEL] selects OSC0 and MCG_C2[RANGE] is not 0. + */ + if (((0U != range) && (kMCG_OscselOsc == oscsel))) + { + switch (frdiv) + { + case 0: + case 1: + case 2: + case 3: + case 4: + case 5: + freq >>= 5u; + break; + case 6: + /* 64*20=1280 */ + freq /= 20u; + break; + case 7: + /* 128*12=1536 */ + freq /= 12u; + break; + default: + freq = 0u; + break; + } + } + + return freq; +} + +static uint32_t CLOCK_GetInternalRefClkSelectFreq(void) +{ + if (kMCG_IrcSlow == MCG_S_IRCST_VAL) + { + /* Slow internal reference clock selected*/ + return s_slowIrcFreq; + } + else + { + /* Fast internal reference clock selected*/ + return s_fastIrcFreq >> MCG_SC_FCRDIV_VAL; + } +} + +static uint32_t CLOCK_GetFllRefClkFreq(void) +{ + /* If use external reference clock. */ + if (kMCG_FllSrcExternal == MCG_S_IREFST_VAL) + { + return CLOCK_GetFllExtRefClkFreq(); + } + /* If use internal reference clock. */ + else + { + return s_slowIrcFreq; + } +} + +static uint32_t CLOCK_GetPll0RefFreq(void) +{ + /* MCG external reference clock. */ + return CLOCK_GetMcgExtClkFreq(); +} + +static uint8_t CLOCK_GetOscRangeFromFreq(uint32_t freq) +{ + uint8_t range; + + if (freq <= 39063U) + { + range = 0U; + } + else if (freq <= 8000000U) + { + range = 1U; + } + else + { + range = 2U; + } + + return range; +} + +static void CLOCK_FllStableDelay(void) +{ + /* + Should wait at least 1ms. Because in these modes, the core clock is 100MHz + at most, so this function could obtain the 1ms delay. + */ + volatile uint32_t i = 30000U; + while (i--) + { + __NOP(); + } +} + +uint32_t CLOCK_GetOsc0ErClkFreq(void) +{ + if (OSC0->CR & OSC_CR_ERCLKEN_MASK) + { + /* Please call CLOCK_SetXtal0Freq base on board setting before using OSC0 clock. */ + assert(g_xtal0Freq); + return g_xtal0Freq; + } + else + { + return 0U; + } +} + +uint32_t CLOCK_GetEr32kClkFreq(void) +{ + uint32_t freq; + + switch (SIM_SOPT1_OSC32KSEL_VAL) + { + case 0U: /* OSC 32k clock */ + freq = (CLOCK_GetOsc0ErClkFreq() == 32768U) ? 32768U : 0U; + break; + case 2U: /* RTC 32k clock */ + /* Please call CLOCK_SetXtal32Freq base on board setting before using XTAL32K/RTC_CLKIN clock. */ + assert(g_xtal32Freq); + freq = g_xtal32Freq; + break; + case 3U: /* LPO clock */ + freq = LPO_CLK_FREQ; + break; + default: + freq = 0U; + break; + } + return freq; +} + +uint32_t CLOCK_GetPllFllSelClkFreq(void) +{ + uint32_t freq; + + switch (SIM_SOPT2_PLLFLLSEL_VAL) + { + case 0U: /* FLL. */ + freq = CLOCK_GetFllFreq(); + break; + case 1U: /* PLL. */ + freq = CLOCK_GetPll0Freq(); + break; + default: + freq = 0U; + break; + } + + return freq; +} + +uint32_t CLOCK_GetPlatClkFreq(void) +{ + return CLOCK_GetOutClkFreq() / (SIM_CLKDIV1_OUTDIV1_VAL + 1); +} + +uint32_t CLOCK_GetFlashClkFreq(void) +{ + return CLOCK_GetOutClkFreq() / (SIM_CLKDIV1_OUTDIV4_VAL + 1); +} + +uint32_t CLOCK_GetFlexBusClkFreq(void) +{ + return CLOCK_GetOutClkFreq() / (SIM_CLKDIV1_OUTDIV3_VAL + 1); +} + +uint32_t CLOCK_GetBusClkFreq(void) +{ + return CLOCK_GetOutClkFreq() / (SIM_CLKDIV1_OUTDIV2_VAL + 1); +} + +uint32_t CLOCK_GetCoreSysClkFreq(void) +{ + return CLOCK_GetOutClkFreq() / (SIM_CLKDIV1_OUTDIV1_VAL + 1); +} + +uint32_t CLOCK_GetFreq(clock_name_t clockName) +{ + uint32_t freq; + + switch (clockName) + { + case kCLOCK_CoreSysClk: + case kCLOCK_PlatClk: + freq = CLOCK_GetOutClkFreq() / (SIM_CLKDIV1_OUTDIV1_VAL + 1); + break; + case kCLOCK_BusClk: + freq = CLOCK_GetOutClkFreq() / (SIM_CLKDIV1_OUTDIV2_VAL + 1); + break; + case kCLOCK_FlexBusClk: + freq = CLOCK_GetOutClkFreq() / (SIM_CLKDIV1_OUTDIV3_VAL + 1); + break; + case kCLOCK_FlashClk: + freq = CLOCK_GetOutClkFreq() / (SIM_CLKDIV1_OUTDIV4_VAL + 1); + break; + case kCLOCK_PllFllSelClk: + freq = CLOCK_GetPllFllSelClkFreq(); + break; + case kCLOCK_Er32kClk: + freq = CLOCK_GetEr32kClkFreq(); + break; + case kCLOCK_Osc0ErClk: + freq = CLOCK_GetOsc0ErClkFreq(); + break; + case kCLOCK_McgFixedFreqClk: + freq = CLOCK_GetFixedFreqClkFreq(); + break; + case kCLOCK_McgInternalRefClk: + freq = CLOCK_GetInternalRefClkFreq(); + break; + case kCLOCK_McgFllClk: + freq = CLOCK_GetFllFreq(); + break; + case kCLOCK_McgPll0Clk: + freq = CLOCK_GetPll0Freq(); + break; + case kCLOCK_LpoClk: + freq = LPO_CLK_FREQ; + break; + default: + freq = 0U; + break; + } + + return freq; +} + +void CLOCK_SetSimConfig(sim_clock_config_t const *config) +{ + SIM->CLKDIV1 = config->clkdiv1; + CLOCK_SetPllFllSelClock(config->pllFllSel); + CLOCK_SetEr32kClock(config->er32kSrc); +} + +bool CLOCK_EnableUsbfs0Clock(clock_usb_src_t src, uint32_t freq) +{ + bool ret = true; + + CLOCK_DisableClock(kCLOCK_Usbfs0); + + if (kCLOCK_UsbSrcExt == src) + { + SIM->SOPT2 &= ~SIM_SOPT2_USBSRC_MASK; + } + else + { + switch (freq) + { + case 120000000U: + SIM->CLKDIV2 = SIM_CLKDIV2_USBDIV(4) | SIM_CLKDIV2_USBFRAC(1); + break; + case 96000000U: + SIM->CLKDIV2 = SIM_CLKDIV2_USBDIV(1) | SIM_CLKDIV2_USBFRAC(0); + break; + case 72000000U: + SIM->CLKDIV2 = SIM_CLKDIV2_USBDIV(2) | SIM_CLKDIV2_USBFRAC(1); + break; + case 48000000U: + SIM->CLKDIV2 = SIM_CLKDIV2_USBDIV(0) | SIM_CLKDIV2_USBFRAC(0); + break; + default: + ret = false; + break; + } + + SIM->SOPT2 = ((SIM->SOPT2 & ~(SIM_SOPT2_PLLFLLSEL_MASK | SIM_SOPT2_USBSRC_MASK)) | (uint32_t)src); + } + + CLOCK_EnableClock(kCLOCK_Usbfs0); + + return ret; +} + +uint32_t CLOCK_GetOutClkFreq(void) +{ + uint32_t mcgoutclk; + uint32_t clkst = MCG_S_CLKST_VAL; + + switch (clkst) + { + case kMCG_ClkOutStatPll: + mcgoutclk = CLOCK_GetPll0Freq(); + break; + case kMCG_ClkOutStatFll: + mcgoutclk = CLOCK_GetFllFreq(); + break; + case kMCG_ClkOutStatInt: + mcgoutclk = CLOCK_GetInternalRefClkSelectFreq(); + break; + case kMCG_ClkOutStatExt: + mcgoutclk = CLOCK_GetMcgExtClkFreq(); + break; + default: + mcgoutclk = 0U; + break; + } + return mcgoutclk; +} + +uint32_t CLOCK_GetFllFreq(void) +{ + static const uint16_t fllFactorTable[4][2] = {{640, 732}, {1280, 1464}, {1920, 2197}, {2560, 2929}}; + + uint8_t drs, dmx32; + uint32_t freq; + + /* If FLL is not enabled currently, then return 0U. */ + if ((MCG->C2 & MCG_C2_LP_MASK) || (MCG->S & MCG_S_PLLST_MASK)) + { + return 0U; + } + + /* Get FLL reference clock frequency. */ + freq = CLOCK_GetFllRefClkFreq(); + if (!freq) + { + return freq; + } + + drs = MCG_C4_DRST_DRS_VAL; + dmx32 = MCG_C4_DMX32_VAL; + + return freq * fllFactorTable[drs][dmx32]; +} + +uint32_t CLOCK_GetInternalRefClkFreq(void) +{ + /* If MCGIRCLK is gated. */ + if (!(MCG->C1 & MCG_C1_IRCLKEN_MASK)) + { + return 0U; + } + + return CLOCK_GetInternalRefClkSelectFreq(); +} + +uint32_t CLOCK_GetFixedFreqClkFreq(void) +{ + uint32_t freq = CLOCK_GetFllRefClkFreq(); + + /* MCGFFCLK must be no more than MCGOUTCLK/8. */ + if ((freq) && (freq <= (CLOCK_GetOutClkFreq() / 8U))) + { + return freq; + } + else + { + return 0U; + } +} + +uint32_t CLOCK_GetPll0Freq(void) +{ + uint32_t mcgpll0clk; + + /* If PLL0 is not enabled, return 0. */ + if (!(MCG->S & MCG_S_LOCK0_MASK)) + { + return 0U; + } + + mcgpll0clk = CLOCK_GetPll0RefFreq(); + + /* + * Please call CLOCK_SetXtal0Freq base on board setting before using OSC0 clock. + * Please call CLOCK_SetXtal1Freq base on board setting before using OSC1 clock. + */ + assert(mcgpll0clk); + + mcgpll0clk /= (FSL_FEATURE_MCG_PLL_PRDIV_BASE + MCG_C5_PRDIV0_VAL); + mcgpll0clk *= (FSL_FEATURE_MCG_PLL_VDIV_BASE + MCG_C6_VDIV0_VAL); + + return mcgpll0clk; +} + +status_t CLOCK_SetExternalRefClkConfig(mcg_oscsel_t oscsel) +{ + bool needDelay; + uint32_t i; + +#if (defined(MCG_CONFIG_CHECK_PARAM) && MCG_CONFIG_CHECK_PARAM) + /* If change MCG_C7[OSCSEL] and external reference clock is system clock source, return error. */ + if ((MCG_C7_OSCSEL_VAL != oscsel) && (!(MCG->S & MCG_S_IREFST_MASK))) + { + return kStatus_MCG_SourceUsed; + } +#endif /* MCG_CONFIG_CHECK_PARAM */ + + if (MCG_C7_OSCSEL_VAL != oscsel) + { + /* If change OSCSEL, need to delay, ERR009878. */ + needDelay = true; + } + else + { + needDelay = false; + } + + MCG->C7 = (MCG->C7 & ~MCG_C7_OSCSEL_MASK) | MCG_C7_OSCSEL(oscsel); + if (kMCG_OscselOsc == oscsel) + { + if (MCG->C2 & MCG_C2_EREFS_MASK) + { + while (!(MCG->S & MCG_S_OSCINIT0_MASK)) + { + } + } + } + + if (needDelay) + { + /* ERR009878 Delay at least 50 micro-seconds for external clock change valid. */ + i = 1500U; + while (i--) + { + __NOP(); + } + } + + return kStatus_Success; +} + +status_t CLOCK_SetInternalRefClkConfig(uint8_t enableMode, mcg_irc_mode_t ircs, uint8_t fcrdiv) +{ + uint32_t mcgOutClkState = MCG_S_CLKST_VAL; + mcg_irc_mode_t curIrcs = (mcg_irc_mode_t)MCG_S_IRCST_VAL; + uint8_t curFcrdiv = MCG_SC_FCRDIV_VAL; + +#if (defined(MCG_CONFIG_CHECK_PARAM) && MCG_CONFIG_CHECK_PARAM) + /* If MCGIRCLK is used as system clock source. */ + if (kMCG_ClkOutStatInt == mcgOutClkState) + { + /* If need to change MCGIRCLK source or driver, return error. */ + if (((kMCG_IrcFast == curIrcs) && (fcrdiv != curFcrdiv)) || (ircs != curIrcs)) + { + return kStatus_MCG_SourceUsed; + } + } +#endif + + /* If need to update the FCRDIV. */ + if (fcrdiv != curFcrdiv) + { + /* If fast IRC is in use currently, change to slow IRC. */ + if ((kMCG_IrcFast == curIrcs) && ((mcgOutClkState == kMCG_ClkOutStatInt) || (MCG->C1 & MCG_C1_IRCLKEN_MASK))) + { + MCG->C2 = ((MCG->C2 & ~MCG_C2_IRCS_MASK) | (MCG_C2_IRCS(kMCG_IrcSlow))); + while (MCG_S_IRCST_VAL != kMCG_IrcSlow) + { + } + } + /* Update FCRDIV. */ + MCG->SC = (MCG->SC & ~(MCG_SC_FCRDIV_MASK | MCG_SC_ATMF_MASK | MCG_SC_LOCS0_MASK)) | MCG_SC_FCRDIV(fcrdiv); + } + + /* Set internal reference clock selection. */ + MCG->C2 = (MCG->C2 & ~MCG_C2_IRCS_MASK) | (MCG_C2_IRCS(ircs)); + MCG->C1 = (MCG->C1 & ~(MCG_C1_IRCLKEN_MASK | MCG_C1_IREFSTEN_MASK)) | (uint8_t)enableMode; + + /* If MCGIRCLK is used, need to wait for MCG_S_IRCST. */ + if ((mcgOutClkState == kMCG_ClkOutStatInt) || (enableMode & kMCG_IrclkEnable)) + { + while (MCG_S_IRCST_VAL != ircs) + { + } + } + + return kStatus_Success; +} + +uint32_t CLOCK_CalcPllDiv(uint32_t refFreq, uint32_t desireFreq, uint8_t *prdiv, uint8_t *vdiv) +{ + uint8_t ret_prdiv; /* PRDIV to return. */ + uint8_t ret_vdiv; /* VDIV to return. */ + uint8_t prdiv_min; /* Min PRDIV value to make reference clock in allowed range. */ + uint8_t prdiv_max; /* Max PRDIV value to make reference clock in allowed range. */ + uint8_t prdiv_cur; /* PRDIV value for iteration. */ + uint8_t vdiv_cur; /* VDIV value for iteration. */ + uint32_t ret_freq = 0U; /* PLL output fequency to return. */ + uint32_t diff = 0xFFFFFFFFU; /* Difference between desireFreq and return frequency. */ + uint32_t ref_div; /* Reference frequency after PRDIV. */ + + /* + Steps: + 1. Get allowed prdiv with such rules: + 1). refFreq / prdiv >= FSL_FEATURE_MCG_PLL_REF_MIN. + 2). refFreq / prdiv <= FSL_FEATURE_MCG_PLL_REF_MAX. + 2. For each allowed prdiv, there are two candidate vdiv values: + 1). (desireFreq / (refFreq / prdiv)). + 2). (desireFreq / (refFreq / prdiv)) + 1. + If could get the precise desired frequency, return current prdiv and + vdiv directly. Otherwise choose the one which is closer to desired + frequency. + */ + + /* Reference frequency is out of range. */ + if ((refFreq < FSL_FEATURE_MCG_PLL_REF_MIN) || + (refFreq > (FSL_FEATURE_MCG_PLL_REF_MAX * (FSL_FEATURE_MCG_PLL_PRDIV_MAX + FSL_FEATURE_MCG_PLL_PRDIV_BASE)))) + { + return 0U; + } + + /* refFreq/PRDIV must in a range. First get the allowed PRDIV range. */ + prdiv_max = refFreq / FSL_FEATURE_MCG_PLL_REF_MIN; + prdiv_min = (refFreq + FSL_FEATURE_MCG_PLL_REF_MAX - 1U) / FSL_FEATURE_MCG_PLL_REF_MAX; + + /* PRDIV traversal. */ + for (prdiv_cur = prdiv_max; prdiv_cur >= prdiv_min; prdiv_cur--) + { + /* Reference frequency after PRDIV. */ + ref_div = refFreq / prdiv_cur; + + vdiv_cur = desireFreq / ref_div; + + if ((vdiv_cur < FSL_FEATURE_MCG_PLL_VDIV_BASE - 1U) || (vdiv_cur > FSL_FEATURE_MCG_PLL_VDIV_BASE + 31U)) + { + /* No VDIV is available with this PRDIV. */ + continue; + } + + ret_freq = vdiv_cur * ref_div; + + if (vdiv_cur >= FSL_FEATURE_MCG_PLL_VDIV_BASE) + { + if (ret_freq == desireFreq) /* If desire frequency is got. */ + { + *prdiv = prdiv_cur - FSL_FEATURE_MCG_PLL_PRDIV_BASE; + *vdiv = vdiv_cur - FSL_FEATURE_MCG_PLL_VDIV_BASE; + return ret_freq; + } + /* New PRDIV/VDIV is closer. */ + if (diff > desireFreq - ret_freq) + { + diff = desireFreq - ret_freq; + ret_prdiv = prdiv_cur; + ret_vdiv = vdiv_cur; + } + } + vdiv_cur++; + if (vdiv_cur <= (FSL_FEATURE_MCG_PLL_VDIV_BASE + 31U)) + { + ret_freq += ref_div; + /* New PRDIV/VDIV is closer. */ + if (diff > ret_freq - desireFreq) + { + diff = ret_freq - desireFreq; + ret_prdiv = prdiv_cur; + ret_vdiv = vdiv_cur; + } + } + } + + if (0xFFFFFFFFU != diff) + { + /* PRDIV/VDIV found. */ + *prdiv = ret_prdiv - FSL_FEATURE_MCG_PLL_PRDIV_BASE; + *vdiv = ret_vdiv - FSL_FEATURE_MCG_PLL_VDIV_BASE; + ret_freq = (refFreq / ret_prdiv) * ret_vdiv; + return ret_freq; + } + else + { + /* No proper PRDIV/VDIV found. */ + return 0U; + } +} + +void CLOCK_EnablePll0(mcg_pll_config_t const *config) +{ + assert(config); + + uint8_t mcg_c5 = 0U; + + mcg_c5 |= MCG_C5_PRDIV0(config->prdiv); + MCG->C5 = mcg_c5; /* Disable the PLL first. */ + + MCG->C6 = (MCG->C6 & ~MCG_C6_VDIV0_MASK) | MCG_C6_VDIV0(config->vdiv); + + /* Set enable mode. */ + MCG->C5 |= ((uint32_t)kMCG_PllEnableIndependent | (uint32_t)config->enableMode); + + /* Wait for PLL lock. */ + while (!(MCG->S & MCG_S_LOCK0_MASK)) + { + } +} + +void CLOCK_SetOsc0MonitorMode(mcg_monitor_mode_t mode) +{ + /* Clear the previous flag, MCG_SC[LOCS0]. */ + MCG->SC &= ~MCG_SC_ATMF_MASK; + + if (kMCG_MonitorNone == mode) + { + MCG->C6 &= ~MCG_C6_CME0_MASK; + } + else + { + if (kMCG_MonitorInt == mode) + { + MCG->C2 &= ~MCG_C2_LOCRE0_MASK; + } + else + { + MCG->C2 |= MCG_C2_LOCRE0_MASK; + } + MCG->C6 |= MCG_C6_CME0_MASK; + } +} + +void CLOCK_SetRtcOscMonitorMode(mcg_monitor_mode_t mode) +{ + uint8_t mcg_c8 = MCG->C8; + + mcg_c8 &= ~(MCG_C8_CME1_MASK | MCG_C8_LOCRE1_MASK); + + if (kMCG_MonitorNone != mode) + { + if (kMCG_MonitorReset == mode) + { + mcg_c8 |= MCG_C8_LOCRE1_MASK; + } + mcg_c8 |= MCG_C8_CME1_MASK; + } + MCG->C8 = mcg_c8; +} + +void CLOCK_SetPll0MonitorMode(mcg_monitor_mode_t mode) +{ + uint8_t mcg_c8; + + /* Clear previous flag. */ + MCG->S = MCG_S_LOLS0_MASK; + + if (kMCG_MonitorNone == mode) + { + MCG->C6 &= ~MCG_C6_LOLIE0_MASK; + } + else + { + mcg_c8 = MCG->C8; + + mcg_c8 &= ~MCG_C8_LOCS1_MASK; + + if (kMCG_MonitorInt == mode) + { + mcg_c8 &= ~MCG_C8_LOLRE_MASK; + } + else + { + mcg_c8 |= MCG_C8_LOLRE_MASK; + } + MCG->C8 = mcg_c8; + MCG->C6 |= MCG_C6_LOLIE0_MASK; + } +} + +uint32_t CLOCK_GetStatusFlags(void) +{ + uint32_t ret = 0U; + uint8_t mcg_s = MCG->S; + + if (MCG->SC & MCG_SC_LOCS0_MASK) + { + ret |= kMCG_Osc0LostFlag; + } + if (mcg_s & MCG_S_OSCINIT0_MASK) + { + ret |= kMCG_Osc0InitFlag; + } + if (MCG->C8 & MCG_C8_LOCS1_MASK) + { + ret |= kMCG_RtcOscLostFlag; + } + if (mcg_s & MCG_S_LOLS0_MASK) + { + ret |= kMCG_Pll0LostFlag; + } + if (mcg_s & MCG_S_LOCK0_MASK) + { + ret |= kMCG_Pll0LockFlag; + } + return ret; +} + +void CLOCK_ClearStatusFlags(uint32_t mask) +{ + uint8_t reg; + + if (mask & kMCG_Osc0LostFlag) + { + MCG->SC &= ~MCG_SC_ATMF_MASK; + } + if (mask & kMCG_RtcOscLostFlag) + { + reg = MCG->C8; + MCG->C8 = reg; + } + if (mask & kMCG_Pll0LostFlag) + { + MCG->S = MCG_S_LOLS0_MASK; + } +} + +void CLOCK_InitOsc0(osc_config_t const *config) +{ + uint8_t range = CLOCK_GetOscRangeFromFreq(config->freq); + + OSC_SetCapLoad(OSC0, config->capLoad); + OSC_SetExtRefClkConfig(OSC0, &config->oscerConfig); + + MCG->C2 = ((MCG->C2 & ~OSC_MODE_MASK) | MCG_C2_RANGE(range) | (uint8_t)config->workMode); + + if ((kOSC_ModeExt != config->workMode) && (OSC0->CR & OSC_CR_ERCLKEN_MASK)) + { + /* Wait for stable. */ + while (!(MCG->S & MCG_S_OSCINIT0_MASK)) + { + } + } +} + +void CLOCK_DeinitOsc0(void) +{ + OSC0->CR = 0U; + MCG->C2 &= ~OSC_MODE_MASK; +} + +status_t CLOCK_TrimInternalRefClk(uint32_t extFreq, uint32_t desireFreq, uint32_t *actualFreq, mcg_atm_select_t atms) +{ + uint32_t multi; /* extFreq / desireFreq */ + uint32_t actv; /* Auto trim value. */ + uint8_t mcg_sc; + + static const uint32_t trimRange[2][2] = { + /* Min Max */ + {TRIM_SIRC_MIN, TRIM_SIRC_MAX}, /* Slow IRC. */ + {TRIM_FIRC_MIN, TRIM_FIRC_MAX} /* Fast IRC. */ + }; + + if ((extFreq > TRIM_REF_CLK_MAX) || (extFreq < TRIM_REF_CLK_MIN)) + { + return kStatus_MCG_AtmBusClockInvalid; + } + + /* Check desired frequency range. */ + if ((desireFreq < trimRange[atms][0]) || (desireFreq > trimRange[atms][1])) + { + return kStatus_MCG_AtmDesiredFreqInvalid; + } + + /* + Make sure internal reference clock is not used to generate bus clock. + Here only need to check (MCG_S_IREFST == 1). + */ + if (MCG_S_IREFST(kMCG_FllSrcInternal) == (MCG->S & MCG_S_IREFST_MASK)) + { + return kStatus_MCG_AtmIrcUsed; + } + + multi = extFreq / desireFreq; + actv = multi * 21U; + + if (kMCG_AtmSel4m == atms) + { + actv *= 128U; + } + + /* Now begin to start trim. */ + MCG->ATCVL = (uint8_t)actv; + MCG->ATCVH = (uint8_t)(actv >> 8U); + + mcg_sc = MCG->SC; + mcg_sc &= ~(MCG_SC_ATMS_MASK | MCG_SC_LOCS0_MASK); + mcg_sc |= (MCG_SC_ATMF_MASK | MCG_SC_ATMS(atms)); + MCG->SC = (mcg_sc | MCG_SC_ATME_MASK); + + /* Wait for finished. */ + while (MCG->SC & MCG_SC_ATME_MASK) + { + } + + /* Error occurs? */ + if (MCG->SC & MCG_SC_ATMF_MASK) + { + /* Clear the failed flag. */ + MCG->SC = mcg_sc; + return kStatus_MCG_AtmHardwareFail; + } + + *actualFreq = extFreq / multi; + + if (kMCG_AtmSel4m == atms) + { + s_fastIrcFreq = *actualFreq; + } + else + { + s_slowIrcFreq = *actualFreq; + } + + return kStatus_Success; +} + +mcg_mode_t CLOCK_GetMode(void) +{ + mcg_mode_t mode = kMCG_ModeError; + uint32_t clkst = MCG_S_CLKST_VAL; + uint32_t irefst = MCG_S_IREFST_VAL; + uint32_t lp = MCG_C2_LP_VAL; + uint32_t pllst = MCG_S_PLLST_VAL; + + /*------------------------------------------------------------------ + Mode and Registers + ____________________________________________________________________ + + Mode | CLKST | IREFST | PLLST | LP + ____________________________________________________________________ + + FEI | 00(FLL) | 1(INT) | 0(FLL) | X + ____________________________________________________________________ + + FEE | 00(FLL) | 0(EXT) | 0(FLL) | X + ____________________________________________________________________ + + FBE | 10(EXT) | 0(EXT) | 0(FLL) | 0(NORMAL) + ____________________________________________________________________ + + FBI | 01(INT) | 1(INT) | 0(FLL) | 0(NORMAL) + ____________________________________________________________________ + + BLPI | 01(INT) | 1(INT) | 0(FLL) | 1(LOW POWER) + ____________________________________________________________________ + + BLPE | 10(EXT) | 0(EXT) | X | 1(LOW POWER) + ____________________________________________________________________ + + PEE | 11(PLL) | 0(EXT) | 1(PLL) | X + ____________________________________________________________________ + + PBE | 10(EXT) | 0(EXT) | 1(PLL) | O(NORMAL) + ____________________________________________________________________ + + PBI | 01(INT) | 1(INT) | 1(PLL) | 0(NORMAL) + ____________________________________________________________________ + + PEI | 11(PLL) | 1(INT) | 1(PLL) | X + ____________________________________________________________________ + + ----------------------------------------------------------------------*/ + + switch (clkst) + { + case kMCG_ClkOutStatFll: + if (kMCG_FllSrcExternal == irefst) + { + mode = kMCG_ModeFEE; + } + else + { + mode = kMCG_ModeFEI; + } + break; + case kMCG_ClkOutStatInt: + if (lp) + { + mode = kMCG_ModeBLPI; + } + else + { + { + mode = kMCG_ModeFBI; + } + } + break; + case kMCG_ClkOutStatExt: + if (lp) + { + mode = kMCG_ModeBLPE; + } + else + { + if (kMCG_PllstPll == pllst) + { + mode = kMCG_ModePBE; + } + else + { + mode = kMCG_ModeFBE; + } + } + break; + case kMCG_ClkOutStatPll: + { + mode = kMCG_ModePEE; + } + break; + default: + break; + } + + return mode; +} + +status_t CLOCK_SetFeiMode(mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void)) +{ + uint8_t mcg_c4; + bool change_drs = false; + +#if (defined(MCG_CONFIG_CHECK_PARAM) && MCG_CONFIG_CHECK_PARAM) + mcg_mode_t mode = CLOCK_GetMode(); + if (!((kMCG_ModeFEI == mode) || (kMCG_ModeFBI == mode) || (kMCG_ModeFBE == mode) || (kMCG_ModeFEE == mode))) + { + return kStatus_MCG_ModeUnreachable; + } +#endif + mcg_c4 = MCG->C4; + + /* + Errata: ERR007993 + Workaround: Invert MCG_C4[DMX32] or change MCG_C4[DRST_DRS] before + reference clock source changes, then reset to previous value after + reference clock changes. + */ + if (kMCG_FllSrcExternal == MCG_S_IREFST_VAL) + { + change_drs = true; + /* Change the LSB of DRST_DRS. */ + MCG->C4 ^= (1U << MCG_C4_DRST_DRS_SHIFT); + } + + /* Set CLKS and IREFS. */ + MCG->C1 = + ((MCG->C1 & ~(MCG_C1_CLKS_MASK | MCG_C1_IREFS_MASK))) | (MCG_C1_CLKS(kMCG_ClkOutSrcOut) /* CLKS = 0 */ + | MCG_C1_IREFS(kMCG_FllSrcInternal)); /* IREFS = 1 */ + + /* Wait and check status. */ + while (kMCG_FllSrcInternal != MCG_S_IREFST_VAL) + { + } + + /* Errata: ERR007993 */ + if (change_drs) + { + MCG->C4 = mcg_c4; + } + + /* In FEI mode, the MCG_C4[DMX32] is set to 0U. */ + MCG->C4 = (mcg_c4 & ~(MCG_C4_DMX32_MASK | MCG_C4_DRST_DRS_MASK)) | (MCG_C4_DMX32(dmx32) | MCG_C4_DRST_DRS(drs)); + + /* Check MCG_S[CLKST] */ + while (kMCG_ClkOutStatFll != MCG_S_CLKST_VAL) + { + } + + /* Wait for FLL stable time. */ + if (fllStableDelay) + { + fllStableDelay(); + } + + return kStatus_Success; +} + +status_t CLOCK_SetFeeMode(uint8_t frdiv, mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void)) +{ + uint8_t mcg_c4; + bool change_drs = false; + +#if (defined(MCG_CONFIG_CHECK_PARAM) && MCG_CONFIG_CHECK_PARAM) + mcg_mode_t mode = CLOCK_GetMode(); + if (!((kMCG_ModeFEE == mode) || (kMCG_ModeFBI == mode) || (kMCG_ModeFBE == mode) || (kMCG_ModeFEI == mode))) + { + return kStatus_MCG_ModeUnreachable; + } +#endif + mcg_c4 = MCG->C4; + + /* + Errata: ERR007993 + Workaround: Invert MCG_C4[DMX32] or change MCG_C4[DRST_DRS] before + reference clock source changes, then reset to previous value after + reference clock changes. + */ + if (kMCG_FllSrcInternal == MCG_S_IREFST_VAL) + { + change_drs = true; + /* Change the LSB of DRST_DRS. */ + MCG->C4 ^= (1U << MCG_C4_DRST_DRS_SHIFT); + } + + /* Set CLKS and IREFS. */ + MCG->C1 = ((MCG->C1 & ~(MCG_C1_CLKS_MASK | MCG_C1_FRDIV_MASK | MCG_C1_IREFS_MASK)) | + (MCG_C1_CLKS(kMCG_ClkOutSrcOut) /* CLKS = 0 */ + | MCG_C1_FRDIV(frdiv) /* FRDIV */ + | MCG_C1_IREFS(kMCG_FllSrcExternal))); /* IREFS = 0 */ + + /* Wait and check status. */ + while (kMCG_FllSrcExternal != MCG_S_IREFST_VAL) + { + } + + /* Errata: ERR007993 */ + if (change_drs) + { + MCG->C4 = mcg_c4; + } + + /* Set DRS and DMX32. */ + mcg_c4 = ((mcg_c4 & ~(MCG_C4_DMX32_MASK | MCG_C4_DRST_DRS_MASK)) | (MCG_C4_DMX32(dmx32) | MCG_C4_DRST_DRS(drs))); + MCG->C4 = mcg_c4; + + /* Wait for DRST_DRS update. */ + while (MCG->C4 != mcg_c4) + { + } + + /* Check MCG_S[CLKST] */ + while (kMCG_ClkOutStatFll != MCG_S_CLKST_VAL) + { + } + + /* Wait for FLL stable time. */ + if (fllStableDelay) + { + fllStableDelay(); + } + + return kStatus_Success; +} + +status_t CLOCK_SetFbiMode(mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void)) +{ + uint8_t mcg_c4; + bool change_drs = false; + +#if (defined(MCG_CONFIG_CHECK_PARAM) && MCG_CONFIG_CHECK_PARAM) + mcg_mode_t mode = CLOCK_GetMode(); + + if (!((kMCG_ModeFEE == mode) || (kMCG_ModeFBI == mode) || (kMCG_ModeFBE == mode) || (kMCG_ModeFEI == mode) || + (kMCG_ModeBLPI == mode))) + + { + return kStatus_MCG_ModeUnreachable; + } +#endif + + mcg_c4 = MCG->C4; + + MCG->C2 &= ~MCG_C2_LP_MASK; /* Disable lowpower. */ + + /* + Errata: ERR007993 + Workaround: Invert MCG_C4[DMX32] or change MCG_C4[DRST_DRS] before + reference clock source changes, then reset to previous value after + reference clock changes. + */ + if (kMCG_FllSrcExternal == MCG_S_IREFST_VAL) + { + change_drs = true; + /* Change the LSB of DRST_DRS. */ + MCG->C4 ^= (1U << MCG_C4_DRST_DRS_SHIFT); + } + + /* Set CLKS and IREFS. */ + MCG->C1 = + ((MCG->C1 & ~(MCG_C1_CLKS_MASK | MCG_C1_IREFS_MASK)) | (MCG_C1_CLKS(kMCG_ClkOutSrcInternal) /* CLKS = 1 */ + | MCG_C1_IREFS(kMCG_FllSrcInternal))); /* IREFS = 1 */ + + /* Wait and check status. */ + while (kMCG_FllSrcInternal != MCG_S_IREFST_VAL) + { + } + + /* Errata: ERR007993 */ + if (change_drs) + { + MCG->C4 = mcg_c4; + } + + while (kMCG_ClkOutStatInt != MCG_S_CLKST_VAL) + { + } + + MCG->C4 = (mcg_c4 & ~(MCG_C4_DMX32_MASK | MCG_C4_DRST_DRS_MASK)) | (MCG_C4_DMX32(dmx32) | MCG_C4_DRST_DRS(drs)); + + /* Wait for FLL stable time. */ + if (fllStableDelay) + { + fllStableDelay(); + } + + return kStatus_Success; +} + +status_t CLOCK_SetFbeMode(uint8_t frdiv, mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void)) +{ + uint8_t mcg_c4; + bool change_drs = false; + +#if (defined(MCG_CONFIG_CHECK_PARAM) && MCG_CONFIG_CHECK_PARAM) + mcg_mode_t mode = CLOCK_GetMode(); + if (!((kMCG_ModeFEE == mode) || (kMCG_ModeFBI == mode) || (kMCG_ModeFBE == mode) || (kMCG_ModeFEI == mode) || + (kMCG_ModePBE == mode) || (kMCG_ModeBLPE == mode))) + { + return kStatus_MCG_ModeUnreachable; + } +#endif + + /* Change to FLL mode. */ + MCG->C6 &= ~MCG_C6_PLLS_MASK; + while (MCG->S & MCG_S_PLLST_MASK) + { + } + + /* Set LP bit to enable the FLL */ + MCG->C2 &= ~MCG_C2_LP_MASK; + + mcg_c4 = MCG->C4; + + /* + Errata: ERR007993 + Workaround: Invert MCG_C4[DMX32] or change MCG_C4[DRST_DRS] before + reference clock source changes, then reset to previous value after + reference clock changes. + */ + if (kMCG_FllSrcInternal == MCG_S_IREFST_VAL) + { + change_drs = true; + /* Change the LSB of DRST_DRS. */ + MCG->C4 ^= (1U << MCG_C4_DRST_DRS_SHIFT); + } + + /* Set CLKS and IREFS. */ + MCG->C1 = ((MCG->C1 & ~(MCG_C1_CLKS_MASK | MCG_C1_FRDIV_MASK | MCG_C1_IREFS_MASK)) | + (MCG_C1_CLKS(kMCG_ClkOutSrcExternal) /* CLKS = 2 */ + | MCG_C1_FRDIV(frdiv) /* FRDIV = frdiv */ + | MCG_C1_IREFS(kMCG_FllSrcExternal))); /* IREFS = 0 */ + + /* Wait for Reference clock Status bit to clear */ + while (kMCG_FllSrcExternal != MCG_S_IREFST_VAL) + { + } + + /* Errata: ERR007993 */ + if (change_drs) + { + MCG->C4 = mcg_c4; + } + + /* Set DRST_DRS and DMX32. */ + mcg_c4 = ((mcg_c4 & ~(MCG_C4_DMX32_MASK | MCG_C4_DRST_DRS_MASK)) | (MCG_C4_DMX32(dmx32) | MCG_C4_DRST_DRS(drs))); + + /* Wait for clock status bits to show clock source is ext ref clk */ + while (kMCG_ClkOutStatExt != MCG_S_CLKST_VAL) + { + } + + /* Wait for fll stable time. */ + if (fllStableDelay) + { + fllStableDelay(); + } + + return kStatus_Success; +} + +status_t CLOCK_SetBlpiMode(void) +{ +#if (defined(MCG_CONFIG_CHECK_PARAM) && MCG_CONFIG_CHECK_PARAM) + if (MCG_S_CLKST_VAL != kMCG_ClkOutStatInt) + { + return kStatus_MCG_ModeUnreachable; + } +#endif /* MCG_CONFIG_CHECK_PARAM */ + + /* Set LP. */ + MCG->C2 |= MCG_C2_LP_MASK; + + return kStatus_Success; +} + +status_t CLOCK_SetBlpeMode(void) +{ +#if (defined(MCG_CONFIG_CHECK_PARAM) && MCG_CONFIG_CHECK_PARAM) + if (MCG_S_CLKST_VAL != kMCG_ClkOutStatExt) + { + return kStatus_MCG_ModeUnreachable; + } +#endif + + /* Set LP bit to enter BLPE mode. */ + MCG->C2 |= MCG_C2_LP_MASK; + + return kStatus_Success; +} + +status_t CLOCK_SetPbeMode(mcg_pll_clk_select_t pllcs, mcg_pll_config_t const *config) +{ + /* + This function is designed to change MCG to PBE mode from PEE/BLPE/FBE, + but with this workflow, the source mode could be all modes except PEI/PBI. + */ + MCG->C2 &= ~MCG_C2_LP_MASK; /* Disable lowpower. */ + + /* Change to use external clock first. */ + MCG->C1 = ((MCG->C1 & ~(MCG_C1_CLKS_MASK | MCG_C1_IREFS_MASK)) | MCG_C1_CLKS(kMCG_ClkOutSrcExternal)); + + /* Wait for CLKST clock status bits to show clock source is ext ref clk */ + while ((MCG->S & (MCG_S_IREFST_MASK | MCG_S_CLKST_MASK)) != + (MCG_S_IREFST(kMCG_FllSrcExternal) | MCG_S_CLKST(kMCG_ClkOutStatExt))) + { + } + + /* Disable PLL first, then configure PLL. */ + MCG->C6 &= ~MCG_C6_PLLS_MASK; + while (MCG->S & MCG_S_PLLST_MASK) + { + } + + /* Configure the PLL. */ + { + CLOCK_EnablePll0(config); + } + + /* Change to PLL mode. */ + MCG->C6 |= MCG_C6_PLLS_MASK; + while (!(MCG->S & MCG_S_PLLST_MASK)) + { + } + + return kStatus_Success; +} + +status_t CLOCK_SetPeeMode(void) +{ +#if (defined(MCG_CONFIG_CHECK_PARAM) && MCG_CONFIG_CHECK_PARAM) + mcg_mode_t mode = CLOCK_GetMode(); + if (kMCG_ModePBE != mode) + { + return kStatus_MCG_ModeUnreachable; + } +#endif + + /* Change to use PLL/FLL output clock first. */ + MCG->C1 = (MCG->C1 & ~MCG_C1_CLKS_MASK) | MCG_C1_CLKS(kMCG_ClkOutSrcOut); + + /* Wait for clock status bits to update */ + while (MCG_S_CLKST_VAL != kMCG_ClkOutStatPll) + { + } + + return kStatus_Success; +} + +status_t CLOCK_ExternalModeToFbeModeQuick(void) +{ +#if (defined(MCG_CONFIG_CHECK_PARAM) && MCG_CONFIG_CHECK_PARAM) + if (MCG->S & MCG_S_IREFST_MASK) + { + return kStatus_MCG_ModeInvalid; + } +#endif /* MCG_CONFIG_CHECK_PARAM */ + + /* Disable low power */ + MCG->C2 &= ~MCG_C2_LP_MASK; + + MCG->C1 = ((MCG->C1 & ~MCG_C1_CLKS_MASK) | MCG_C1_CLKS(kMCG_ClkOutSrcExternal)); + while (MCG_S_CLKST_VAL != kMCG_ClkOutStatExt) + { + } + + /* Disable PLL. */ + MCG->C6 &= ~MCG_C6_PLLS_MASK; + while (MCG->S & MCG_S_PLLST_MASK) + { + } + + return kStatus_Success; +} + +status_t CLOCK_InternalModeToFbiModeQuick(void) +{ +#if (defined(MCG_CONFIG_CHECK_PARAM) && MCG_CONFIG_CHECK_PARAM) + if (!(MCG->S & MCG_S_IREFST_MASK)) + { + return kStatus_MCG_ModeInvalid; + } +#endif + + /* Disable low power */ + MCG->C2 &= ~MCG_C2_LP_MASK; + + MCG->C1 = ((MCG->C1 & ~MCG_C1_CLKS_MASK) | MCG_C1_CLKS(kMCG_ClkOutSrcInternal)); + while (MCG_S_CLKST_VAL != kMCG_ClkOutStatInt) + { + } + + return kStatus_Success; +} + +status_t CLOCK_BootToFeiMode(mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void)) +{ + return CLOCK_SetFeiMode(dmx32, drs, fllStableDelay); +} + +status_t CLOCK_BootToFeeMode( + mcg_oscsel_t oscsel, uint8_t frdiv, mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void)) +{ + CLOCK_SetExternalRefClkConfig(oscsel); + + return CLOCK_SetFeeMode(frdiv, dmx32, drs, fllStableDelay); +} + +status_t CLOCK_BootToBlpiMode(uint8_t fcrdiv, mcg_irc_mode_t ircs, uint8_t ircEnableMode) +{ + /* If reset mode is FEI mode, set MCGIRCLK and always success. */ + CLOCK_SetInternalRefClkConfig(ircEnableMode, ircs, fcrdiv); + + /* If reset mode is not BLPI, first enter FBI mode. */ + MCG->C1 = (MCG->C1 & ~MCG_C1_CLKS_MASK) | MCG_C1_CLKS(kMCG_ClkOutSrcInternal); + while (MCG_S_CLKST_VAL != kMCG_ClkOutStatInt) + { + } + + /* Enter BLPI mode. */ + MCG->C2 |= MCG_C2_LP_MASK; + + return kStatus_Success; +} + +status_t CLOCK_BootToBlpeMode(mcg_oscsel_t oscsel) +{ + CLOCK_SetExternalRefClkConfig(oscsel); + + /* Set to FBE mode. */ + MCG->C1 = + ((MCG->C1 & ~(MCG_C1_CLKS_MASK | MCG_C1_IREFS_MASK)) | (MCG_C1_CLKS(kMCG_ClkOutSrcExternal) /* CLKS = 2 */ + | MCG_C1_IREFS(kMCG_FllSrcExternal))); /* IREFS = 0 */ + + /* Wait for MCG_S[CLKST] and MCG_S[IREFST]. */ + while ((MCG->S & (MCG_S_IREFST_MASK | MCG_S_CLKST_MASK)) != + (MCG_S_IREFST(kMCG_FllSrcExternal) | MCG_S_CLKST(kMCG_ClkOutStatExt))) + { + } + + /* In FBE now, start to enter BLPE. */ + MCG->C2 |= MCG_C2_LP_MASK; + + return kStatus_Success; +} + +status_t CLOCK_BootToPeeMode(mcg_oscsel_t oscsel, mcg_pll_clk_select_t pllcs, mcg_pll_config_t const *config) +{ + assert(config); + + CLOCK_SetExternalRefClkConfig(oscsel); + + CLOCK_SetPbeMode(pllcs, config); + + /* Change to use PLL output clock. */ + MCG->C1 = (MCG->C1 & ~MCG_C1_CLKS_MASK) | MCG_C1_CLKS(kMCG_ClkOutSrcOut); + while (MCG_S_CLKST_VAL != kMCG_ClkOutStatPll) + { + } + + return kStatus_Success; +} + +/* + The transaction matrix. It defines the path for mode switch, the row is for + current mode and the column is target mode. + For example, switch from FEI to PEE: + 1. Current mode FEI, next mode is mcgModeMatrix[FEI][PEE] = FBE, so swith to FBE. + 2. Current mode FBE, next mode is mcgModeMatrix[FBE][PEE] = PBE, so swith to PBE. + 3. Current mode PBE, next mode is mcgModeMatrix[PBE][PEE] = PEE, so swith to PEE. + Thus the MCG mode has changed from FEI to PEE. + */ +static const mcg_mode_t mcgModeMatrix[8][8] = { + {kMCG_ModeFEI, kMCG_ModeFBI, kMCG_ModeFBI, kMCG_ModeFEE, kMCG_ModeFBE, kMCG_ModeFBE, kMCG_ModeFBE, + kMCG_ModeFBE}, /* FEI */ + {kMCG_ModeFEI, kMCG_ModeFBI, kMCG_ModeBLPI, kMCG_ModeFEE, kMCG_ModeFBE, kMCG_ModeFBE, kMCG_ModeFBE, + kMCG_ModeFBE}, /* FBI */ + {kMCG_ModeFBI, kMCG_ModeFBI, kMCG_ModeBLPI, kMCG_ModeFBI, kMCG_ModeFBI, kMCG_ModeFBI, kMCG_ModeFBI, + kMCG_ModeFBI}, /* BLPI */ + {kMCG_ModeFEI, kMCG_ModeFBI, kMCG_ModeFBI, kMCG_ModeFEE, kMCG_ModeFBE, kMCG_ModeFBE, kMCG_ModeFBE, + kMCG_ModeFBE}, /* FEE */ + {kMCG_ModeFEI, kMCG_ModeFBI, kMCG_ModeFBI, kMCG_ModeFEE, kMCG_ModeFBE, kMCG_ModeBLPE, kMCG_ModePBE, + kMCG_ModePBE}, /* FBE */ + {kMCG_ModeFBE, kMCG_ModeFBE, kMCG_ModeFBE, kMCG_ModeFBE, kMCG_ModeFBE, kMCG_ModeBLPE, kMCG_ModePBE, + kMCG_ModePBE}, /* BLPE */ + {kMCG_ModeFBE, kMCG_ModeFBE, kMCG_ModeFBE, kMCG_ModeFBE, kMCG_ModeFBE, kMCG_ModeBLPE, kMCG_ModePBE, + kMCG_ModePEE}, /* PBE */ + {kMCG_ModePBE, kMCG_ModePBE, kMCG_ModePBE, kMCG_ModePBE, kMCG_ModePBE, kMCG_ModePBE, kMCG_ModePBE, + kMCG_ModePBE} /* PEE */ + /* FEI FBI BLPI FEE FBE BLPE PBE PEE */ +}; + +status_t CLOCK_SetMcgConfig(const mcg_config_t *config) +{ + mcg_mode_t next_mode; + status_t status = kStatus_Success; + + mcg_pll_clk_select_t pllcs = kMCG_PllClkSelPll0; + + /* If need to change external clock, MCG_C7[OSCSEL]. */ + if (MCG_C7_OSCSEL_VAL != config->oscsel) + { + /* If external clock is in use, change to FEI first. */ + if (!(MCG->S & MCG_S_IRCST_MASK)) + { + CLOCK_ExternalModeToFbeModeQuick(); + CLOCK_SetFeiMode(config->dmx32, config->drs, (void (*)(void))0); + } + + CLOCK_SetExternalRefClkConfig(config->oscsel); + } + + /* Re-configure MCGIRCLK, if MCGIRCLK is used as system clock source, then change to FEI/PEI first. */ + if (MCG_S_CLKST_VAL == kMCG_ClkOutStatInt) + { + MCG->C2 &= ~MCG_C2_LP_MASK; /* Disable lowpower. */ + + { + CLOCK_SetFeiMode(config->dmx32, config->drs, CLOCK_FllStableDelay); + } + } + + /* Configure MCGIRCLK. */ + CLOCK_SetInternalRefClkConfig(config->irclkEnableMode, config->ircs, config->fcrdiv); + + next_mode = CLOCK_GetMode(); + + do + { + next_mode = mcgModeMatrix[next_mode][config->mcgMode]; + + switch (next_mode) + { + case kMCG_ModeFEI: + status = CLOCK_SetFeiMode(config->dmx32, config->drs, CLOCK_FllStableDelay); + break; + case kMCG_ModeFEE: + status = CLOCK_SetFeeMode(config->frdiv, config->dmx32, config->drs, CLOCK_FllStableDelay); + break; + case kMCG_ModeFBI: + status = CLOCK_SetFbiMode(config->dmx32, config->drs, (void (*)(void))0); + break; + case kMCG_ModeFBE: + status = CLOCK_SetFbeMode(config->frdiv, config->dmx32, config->drs, (void (*)(void))0); + break; + case kMCG_ModeBLPI: + status = CLOCK_SetBlpiMode(); + break; + case kMCG_ModeBLPE: + status = CLOCK_SetBlpeMode(); + break; + case kMCG_ModePBE: + /* If target mode is not PBE or PEE, then only need to set CLKS = EXT here. */ + if ((kMCG_ModePEE == config->mcgMode) || (kMCG_ModePBE == config->mcgMode)) + { + { + status = CLOCK_SetPbeMode(pllcs, &config->pll0Config); + } + } + else + { + MCG->C1 = ((MCG->C1 & ~MCG_C1_CLKS_MASK) | MCG_C1_CLKS(kMCG_ClkOutSrcExternal)); + while (MCG_S_CLKST_VAL != kMCG_ClkOutStatExt) + { + } + } + break; + case kMCG_ModePEE: + status = CLOCK_SetPeeMode(); + break; + default: + break; + } + if (kStatus_Success != status) + { + return status; + } + } while (next_mode != config->mcgMode); + + if (config->pll0Config.enableMode & kMCG_PllEnableIndependent) + { + CLOCK_EnablePll0(&config->pll0Config); + } + else + { + MCG->C5 &= ~(uint32_t)kMCG_PllEnableIndependent; + } + return kStatus_Success; +} diff --git a/drivers/fsl_clock.h b/drivers/fsl_clock.h new file mode 100644 index 0000000..4c4fb59 --- /dev/null +++ b/drivers/fsl_clock.h @@ -0,0 +1,1492 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_CLOCK_H_ +#define _FSL_CLOCK_H_ + +#include "fsl_device_registers.h" +#include <stdint.h> +#include <stdbool.h> +#include <assert.h> + +/*! @addtogroup clock */ +/*! @{ */ + +/*! @file */ + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief CLOCK driver version 2.2.0. */ +#define FSL_CLOCK_DRIVER_VERSION (MAKE_VERSION(2, 2, 0)) +/*@}*/ + +/*! @brief External XTAL0 (OSC0) clock frequency. + * + * The XTAL0/EXTAL0 (OSC0) clock frequency in Hz, when the clock is setup, use the + * function CLOCK_SetXtal0Freq to set the value in to clock driver. For example, + * if XTAL0 is 8MHz, + * @code + * CLOCK_InitOsc0(...); // Setup the OSC0 + * CLOCK_SetXtal0Freq(80000000); // Set the XTAL0 value to clock driver. + * @endcode + * + * This is important for the multicore platforms, only one core needs to setup + * OSC0 using CLOCK_InitOsc0, all other cores need to call CLOCK_SetXtal0Freq + * to get valid clock frequency. + */ +extern uint32_t g_xtal0Freq; + +/*! @brief External XTAL32/EXTAL32/RTC_CLKIN clock frequency. + * + * The XTAL32/EXTAL32/RTC_CLKIN clock frequency in Hz, when the clock is setup, use the + * function CLOCK_SetXtal32Freq to set the value in to clock driver. + * + * This is important for the multicore platforms, only one core needs to setup + * the clock, all other cores need to call CLOCK_SetXtal32Freq + * to get valid clock frequency. + */ +extern uint32_t g_xtal32Freq; + +#if (defined(OSC) && !(defined(OSC0))) +#define OSC0 OSC +#endif + +/*! @brief Clock ip name array for DMAMUX. */ +#define DMAMUX_CLOCKS \ + { \ + kCLOCK_Dmamux0 \ + } + +/*! @brief Clock ip name array for RTC. */ +#define RTC_CLOCKS \ + { \ + kCLOCK_Rtc0 \ + } + +/*! @brief Clock ip name array for PORT. */ +#define PORT_CLOCKS \ + { \ + kCLOCK_PortA, kCLOCK_PortB, kCLOCK_PortC, kCLOCK_PortD, kCLOCK_PortE \ + } + +/*! @brief Clock ip name array for SAI. */ +#define SAI_CLOCKS \ + { \ + kCLOCK_Sai0 \ + } + +/*! @brief Clock ip name array for FLEXBUS. */ +#define FLEXBUS_CLOCKS \ + { \ + kCLOCK_Flexbus0 \ + } + +/*! @brief Clock ip name array for TSI. */ +#define TSI_CLOCKS \ + { \ + kCLOCK_Tsi0 \ + } + +/*! @brief Clock ip name array for EWM. */ +#define EWM_CLOCKS \ + { \ + kCLOCK_Ewm0 \ + } + +/*! @brief Clock ip name array for PIT. */ +#define PIT_CLOCKS \ + { \ + kCLOCK_Pit0 \ + } + +/*! @brief Clock ip name array for DSPI. */ +#define DSPI_CLOCKS \ + { \ + kCLOCK_Spi0, kCLOCK_Spi1, kCLOCK_Spi2 \ + } + +/*! @brief Clock ip name array for LPTMR. */ +#define LPTMR_CLOCKS \ + { \ + kCLOCK_Lptmr0 \ + } + +/*! @brief Clock ip name array for SDHC. */ +#define SDHC_CLOCKS \ + { \ + kCLOCK_Sdhc0 \ + } + +/*! @brief Clock ip name array for FTM. */ +#define FTM_CLOCKS \ + { \ + kCLOCK_Ftm0, kCLOCK_Ftm1, kCLOCK_Ftm2 \ + } + +/*! @brief Clock ip name array for LLWU. */ +#define LLWU_CLOCKS \ + { \ + kCLOCK_Llwu0 \ + } + +/*! @brief Clock ip name array for EDMA. */ +#define EDMA_CLOCKS \ + { \ + kCLOCK_Dma0 \ + } + +/*! @brief Clock ip name array for FLEXCAN. */ +#define FLEXCAN_CLOCKS \ + { \ + kCLOCK_Flexcan0, kCLOCK_Flexcan1 \ + } + +/*! @brief Clock ip name array for DAC. */ +#define DAC_CLOCKS \ + { \ + kCLOCK_Dac0, kCLOCK_Dac1 \ + } + +/*! @brief Clock ip name array for ADC16. */ +#define ADC16_CLOCKS \ + { \ + kCLOCK_Adc0, kCLOCK_Adc1 \ + } + +/*! @brief Clock ip name array for MPU. */ +#define MPU_CLOCKS \ + { \ + kCLOCK_Mpu0 \ + } + +/*! @brief Clock ip name array for VREF. */ +#define VREF_CLOCKS \ + { \ + kCLOCK_Vref0 \ + } + +/*! @brief Clock ip name array for CMT. */ +#define CMT_CLOCKS \ + { \ + kCLOCK_Cmt0 \ + } + +/*! @brief Clock ip name array for UART. */ +#define UART_CLOCKS \ + { \ + kCLOCK_Uart0, kCLOCK_Uart1, kCLOCK_Uart2, kCLOCK_Uart3, kCLOCK_Uart4, kCLOCK_Uart5 \ + } + +/*! @brief Clock ip name array for CRC. */ +#define CRC_CLOCKS \ + { \ + kCLOCK_Crc0 \ + } + +/*! @brief Clock ip name array for I2C. */ +#define I2C_CLOCKS \ + { \ + kCLOCK_I2c0, kCLOCK_I2c1 \ + } + +/*! @brief Clock ip name array for PDB. */ +#define PDB_CLOCKS \ + { \ + kCLOCK_Pdb0 \ + } + +/*! @brief Clock ip name array for FTF. */ +#define FTF_CLOCKS \ + { \ + kCLOCK_Ftf0 \ + } + +/*! @brief Clock ip name array for CMP. */ +#define CMP_CLOCKS \ + { \ + kCLOCK_Cmp0, kCLOCK_Cmp1, kCLOCK_Cmp2 \ + } + +/*! + * @brief LPO clock frequency. + */ +#define LPO_CLK_FREQ 1000U + +/*! @brief Peripherals clock source definition. */ +#define SYS_CLK kCLOCK_CoreSysClk +#define BUS_CLK kCLOCK_BusClk + +#define I2C0_CLK_SRC BUS_CLK +#define I2C1_CLK_SRC BUS_CLK +#define DSPI0_CLK_SRC BUS_CLK +#define DSPI1_CLK_SRC BUS_CLK +#define DSPI2_CLK_SRC BUS_CLK +#define UART0_CLK_SRC SYS_CLK +#define UART1_CLK_SRC SYS_CLK +#define UART2_CLK_SRC BUS_CLK +#define UART3_CLK_SRC BUS_CLK +#define UART4_CLK_SRC BUS_CLK +#define UART5_CLK_SRC BUS_CLK + +/*! @brief Clock name used to get clock frequency. */ +typedef enum _clock_name +{ + + /* ----------------------------- System layer clock -------------------------------*/ + kCLOCK_CoreSysClk, /*!< Core/system clock */ + kCLOCK_PlatClk, /*!< Platform clock */ + kCLOCK_BusClk, /*!< Bus clock */ + kCLOCK_FlexBusClk, /*!< FlexBus clock */ + kCLOCK_FlashClk, /*!< Flash clock */ + kCLOCK_FastPeriphClk, /*!< Fast peripheral clock */ + kCLOCK_PllFllSelClk, /*!< The clock after SIM[PLLFLLSEL]. */ + + /* ---------------------------------- OSC clock -----------------------------------*/ + kCLOCK_Er32kClk, /*!< External reference 32K clock (ERCLK32K) */ + kCLOCK_Osc0ErClk, /*!< OSC0 external reference clock (OSC0ERCLK) */ + kCLOCK_Osc1ErClk, /*!< OSC1 external reference clock (OSC1ERCLK) */ + kCLOCK_Osc0ErClkUndiv, /*!< OSC0 external reference undivided clock(OSC0ERCLK_UNDIV). */ + + /* ----------------------------- MCG and MCG-Lite clock ---------------------------*/ + kCLOCK_McgFixedFreqClk, /*!< MCG fixed frequency clock (MCGFFCLK) */ + kCLOCK_McgInternalRefClk, /*!< MCG internal reference clock (MCGIRCLK) */ + kCLOCK_McgFllClk, /*!< MCGFLLCLK */ + kCLOCK_McgPll0Clk, /*!< MCGPLL0CLK */ + kCLOCK_McgPll1Clk, /*!< MCGPLL1CLK */ + kCLOCK_McgExtPllClk, /*!< EXT_PLLCLK */ + kCLOCK_McgPeriphClk, /*!< MCG peripheral clock (MCGPCLK) */ + kCLOCK_McgIrc48MClk, /*!< MCG IRC48M clock */ + + /* --------------------------------- Other clock ----------------------------------*/ + kCLOCK_LpoClk, /*!< LPO clock */ + +} clock_name_t; + +/*! @brief USB clock source definition. */ +typedef enum _clock_usb_src +{ + kCLOCK_UsbSrcPll0 = SIM_SOPT2_USBSRC(1U) | SIM_SOPT2_PLLFLLSEL(1U), /*!< Use PLL0. */ + kCLOCK_UsbSrcExt = SIM_SOPT2_USBSRC(0U) /*!< Use USB_CLKIN. */ +} clock_usb_src_t; + +/*------------------------------------------------------------------------------ + + clock_gate_t definition: + + 31 16 0 + ----------------------------------------------------------------- + | SIM_SCGC register offset | control bit offset in SCGC | + ----------------------------------------------------------------- + + For example, the SDHC clock gate is controlled by SIM_SCGC3[17], the + SIM_SCGC3 offset in SIM is 0x1030, then kCLOCK_GateSdhc0 is defined as + + kCLOCK_GateSdhc0 = (0x1030 << 16) | 17; + +------------------------------------------------------------------------------*/ + +#define CLK_GATE_REG_OFFSET_SHIFT 16U +#define CLK_GATE_REG_OFFSET_MASK 0xFFFF0000U +#define CLK_GATE_BIT_SHIFT_SHIFT 0U +#define CLK_GATE_BIT_SHIFT_MASK 0x0000FFFFU + +#define CLK_GATE_DEFINE(reg_offset, bit_shift) \ + ((((reg_offset) << CLK_GATE_REG_OFFSET_SHIFT) & CLK_GATE_REG_OFFSET_MASK) | \ + (((bit_shift) << CLK_GATE_BIT_SHIFT_SHIFT) & CLK_GATE_BIT_SHIFT_MASK)) + +#define CLK_GATE_ABSTRACT_REG_OFFSET(x) (((x)&CLK_GATE_REG_OFFSET_MASK) >> CLK_GATE_REG_OFFSET_SHIFT) +#define CLK_GATE_ABSTRACT_BITS_SHIFT(x) (((x)&CLK_GATE_BIT_SHIFT_MASK) >> CLK_GATE_BIT_SHIFT_SHIFT) + +/*! @brief Clock gate name used for CLOCK_EnableClock/CLOCK_DisableClock. */ +typedef enum _clock_ip_name +{ + kCLOCK_IpInvalid = 0U, + kCLOCK_Uart4 = CLK_GATE_DEFINE(0x1028U, 10U), + kCLOCK_Uart5 = CLK_GATE_DEFINE(0x1028U, 11U), + + kCLOCK_Dac0 = CLK_GATE_DEFINE(0x102CU, 12U), + kCLOCK_Dac1 = CLK_GATE_DEFINE(0x102CU, 13U), + + kCLOCK_Flexcan1 = CLK_GATE_DEFINE(0x1030U, 4U), + kCLOCK_Spi2 = CLK_GATE_DEFINE(0x1030U, 12U), + kCLOCK_Sdhc0 = CLK_GATE_DEFINE(0x1030U, 17U), + kCLOCK_Ftm2 = CLK_GATE_DEFINE(0x1030U, 24U), + kCLOCK_Adc1 = CLK_GATE_DEFINE(0x1030U, 27U), + + kCLOCK_Ewm0 = CLK_GATE_DEFINE(0x1034U, 1U), + kCLOCK_Cmt0 = CLK_GATE_DEFINE(0x1034U, 2U), + kCLOCK_I2c0 = CLK_GATE_DEFINE(0x1034U, 6U), + kCLOCK_I2c1 = CLK_GATE_DEFINE(0x1034U, 7U), + kCLOCK_Uart0 = CLK_GATE_DEFINE(0x1034U, 10U), + kCLOCK_Uart1 = CLK_GATE_DEFINE(0x1034U, 11U), + kCLOCK_Uart2 = CLK_GATE_DEFINE(0x1034U, 12U), + kCLOCK_Uart3 = CLK_GATE_DEFINE(0x1034U, 13U), + kCLOCK_Usbfs0 = CLK_GATE_DEFINE(0x1034U, 18U), + kCLOCK_Cmp0 = CLK_GATE_DEFINE(0x1034U, 19U), + kCLOCK_Cmp1 = CLK_GATE_DEFINE(0x1034U, 19U), + kCLOCK_Cmp2 = CLK_GATE_DEFINE(0x1034U, 19U), + kCLOCK_Vref0 = CLK_GATE_DEFINE(0x1034U, 20U), + kCLOCK_Llwu0 = CLK_GATE_DEFINE(0x1034U, 28U), + + kCLOCK_Lptmr0 = CLK_GATE_DEFINE(0x1038U, 0U), + kCLOCK_Tsi0 = CLK_GATE_DEFINE(0x1038U, 5U), + kCLOCK_PortA = CLK_GATE_DEFINE(0x1038U, 9U), + kCLOCK_PortB = CLK_GATE_DEFINE(0x1038U, 10U), + kCLOCK_PortC = CLK_GATE_DEFINE(0x1038U, 11U), + kCLOCK_PortD = CLK_GATE_DEFINE(0x1038U, 12U), + kCLOCK_PortE = CLK_GATE_DEFINE(0x1038U, 13U), + + kCLOCK_Ftf0 = CLK_GATE_DEFINE(0x103CU, 0U), + kCLOCK_Dmamux0 = CLK_GATE_DEFINE(0x103CU, 1U), + kCLOCK_Flexcan0 = CLK_GATE_DEFINE(0x103CU, 4U), + kCLOCK_Spi0 = CLK_GATE_DEFINE(0x103CU, 12U), + kCLOCK_Spi1 = CLK_GATE_DEFINE(0x103CU, 13U), + kCLOCK_Sai0 = CLK_GATE_DEFINE(0x103CU, 15U), + kCLOCK_Crc0 = CLK_GATE_DEFINE(0x103CU, 18U), + kCLOCK_Usbdcd0 = CLK_GATE_DEFINE(0x103CU, 21U), + kCLOCK_Pdb0 = CLK_GATE_DEFINE(0x103CU, 22U), + kCLOCK_Pit0 = CLK_GATE_DEFINE(0x103CU, 23U), + kCLOCK_Ftm0 = CLK_GATE_DEFINE(0x103CU, 24U), + kCLOCK_Ftm1 = CLK_GATE_DEFINE(0x103CU, 25U), + kCLOCK_Adc0 = CLK_GATE_DEFINE(0x103CU, 27U), + kCLOCK_Rtc0 = CLK_GATE_DEFINE(0x103CU, 29U), + + kCLOCK_Flexbus0 = CLK_GATE_DEFINE(0x1040U, 0U), + kCLOCK_Dma0 = CLK_GATE_DEFINE(0x1040U, 1U), + kCLOCK_Mpu0 = CLK_GATE_DEFINE(0x1040U, 2U), +} clock_ip_name_t; + +/*!@brief SIM configuration structure for clock setting. */ +typedef struct _sim_clock_config +{ + uint8_t pllFllSel; /*!< PLL/FLL/IRC48M selection. */ + uint8_t er32kSrc; /*!< ERCLK32K source selection. */ + uint32_t clkdiv1; /*!< SIM_CLKDIV1. */ +} sim_clock_config_t; + +/*! @brief OSC work mode. */ +typedef enum _osc_mode +{ + kOSC_ModeExt = 0U, /*!< Use external clock. */ +#if (defined(MCG_C2_EREFS_MASK) && !(defined(MCG_C2_EREFS0_MASK))) + kOSC_ModeOscLowPower = MCG_C2_EREFS_MASK, /*!< Oscillator low power. */ +#else + kOSC_ModeOscLowPower = MCG_C2_EREFS0_MASK, /*!< Oscillator low power. */ +#endif + kOSC_ModeOscHighGain = 0U +#if (defined(MCG_C2_EREFS_MASK) && !(defined(MCG_C2_EREFS0_MASK))) + | + MCG_C2_EREFS_MASK +#else + | + MCG_C2_EREFS0_MASK +#endif +#if (defined(MCG_C2_HGO_MASK) && !(defined(MCG_C2_HGO0_MASK))) + | + MCG_C2_HGO_MASK, /*!< Oscillator high gain. */ +#else + | + MCG_C2_HGO0_MASK, /*!< Oscillator high gain. */ +#endif +} osc_mode_t; + +/*! @brief Oscillator capacitor load setting.*/ +enum _osc_cap_load +{ + kOSC_Cap2P = OSC_CR_SC2P_MASK, /*!< 2 pF capacitor load */ + kOSC_Cap4P = OSC_CR_SC4P_MASK, /*!< 4 pF capacitor load */ + kOSC_Cap8P = OSC_CR_SC8P_MASK, /*!< 8 pF capacitor load */ + kOSC_Cap16P = OSC_CR_SC16P_MASK /*!< 16 pF capacitor load */ +}; + +/*! @brief OSCERCLK enable mode. */ +enum _oscer_enable_mode +{ + kOSC_ErClkEnable = OSC_CR_ERCLKEN_MASK, /*!< Enable. */ + kOSC_ErClkEnableInStop = OSC_CR_EREFSTEN_MASK /*!< Enable in stop mode. */ +}; + +/*! @brief OSC configuration for OSCERCLK. */ +typedef struct _oscer_config +{ + uint8_t enableMode; /*!< OSCERCLK enable mode. OR'ed value of @ref _oscer_enable_mode. */ + +} oscer_config_t; + +/*! + * @brief OSC Initialization Configuration Structure + * + * Defines the configuration data structure to initialize the OSC. + * When porting to a new board, please set the following members + * according to board setting: + * 1. freq: The external frequency. + * 2. workMode: The OSC module mode. + */ +typedef struct _osc_config +{ + uint32_t freq; /*!< External clock frequency. */ + uint8_t capLoad; /*!< Capacitor load setting. */ + osc_mode_t workMode; /*!< OSC work mode setting. */ + oscer_config_t oscerConfig; /*!< Configuration for OSCERCLK. */ +} osc_config_t; + +/*! @brief MCG FLL reference clock source select. */ +typedef enum _mcg_fll_src +{ + kMCG_FllSrcExternal, /*!< External reference clock is selected */ + kMCG_FllSrcInternal /*!< The slow internal reference clock is selected */ +} mcg_fll_src_t; + +/*! @brief MCG internal reference clock select */ +typedef enum _mcg_irc_mode +{ + kMCG_IrcSlow, /*!< Slow internal reference clock selected */ + kMCG_IrcFast /*!< Fast internal reference clock selected */ +} mcg_irc_mode_t; + +/*! @brief MCG DCO Maximum Frequency with 32.768 kHz Reference */ +typedef enum _mcg_dmx32 +{ + kMCG_Dmx32Default, /*!< DCO has a default range of 25% */ + kMCG_Dmx32Fine /*!< DCO is fine-tuned for maximum frequency with 32.768 kHz reference */ +} mcg_dmx32_t; + +/*! @brief MCG DCO range select */ +typedef enum _mcg_drs +{ + kMCG_DrsLow, /*!< Low frequency range */ + kMCG_DrsMid, /*!< Mid frequency range */ + kMCG_DrsMidHigh, /*!< Mid-High frequency range */ + kMCG_DrsHigh /*!< High frequency range */ +} mcg_drs_t; + +/*! @brief MCG PLL reference clock select */ +typedef enum _mcg_pll_ref_src +{ + kMCG_PllRefOsc0, /*!< Selects OSC0 as PLL reference clock */ + kMCG_PllRefOsc1 /*!< Selects OSC1 as PLL reference clock */ +} mcg_pll_ref_src_t; + +/*! @brief MCGOUT clock source. */ +typedef enum _mcg_clkout_src +{ + kMCG_ClkOutSrcOut, /*!< Output of the FLL is selected (reset default) */ + kMCG_ClkOutSrcInternal, /*!< Internal reference clock is selected */ + kMCG_ClkOutSrcExternal, /*!< External reference clock is selected */ +} mcg_clkout_src_t; + +/*! @brief MCG Automatic Trim Machine Select */ +typedef enum _mcg_atm_select +{ + kMCG_AtmSel32k, /*!< 32 kHz Internal Reference Clock selected */ + kMCG_AtmSel4m /*!< 4 MHz Internal Reference Clock selected */ +} mcg_atm_select_t; + +/*! @brief MCG OSC Clock Select */ +typedef enum _mcg_oscsel +{ + kMCG_OscselOsc, /*!< Selects System Oscillator (OSCCLK) */ + kMCG_OscselRtc, /*!< Selects 32 kHz RTC Oscillator */ +} mcg_oscsel_t; + +/*! @brief MCG PLLCS select */ +typedef enum _mcg_pll_clk_select +{ + kMCG_PllClkSelPll0, /*!< PLL0 output clock is selected */ + kMCG_PllClkSelPll1 /* PLL1 output clock is selected */ +} mcg_pll_clk_select_t; + +/*! @brief MCG clock monitor mode. */ +typedef enum _mcg_monitor_mode +{ + kMCG_MonitorNone, /*!< Clock monitor is disabled. */ + kMCG_MonitorInt, /*!< Trigger interrupt when clock lost. */ + kMCG_MonitorReset /*!< System reset when clock lost. */ +} mcg_monitor_mode_t; + +/*! @brief MCG status. */ +enum _mcg_status +{ + kStatus_MCG_ModeUnreachable = MAKE_STATUS(kStatusGroup_MCG, 0), /*!< Can't switch to target mode. */ + kStatus_MCG_ModeInvalid = MAKE_STATUS(kStatusGroup_MCG, 1), /*!< Current mode invalid for the specific + function. */ + kStatus_MCG_AtmBusClockInvalid = MAKE_STATUS(kStatusGroup_MCG, 2), /*!< Invalid bus clock for ATM. */ + kStatus_MCG_AtmDesiredFreqInvalid = MAKE_STATUS(kStatusGroup_MCG, 3), /*!< Invalid desired frequency for ATM. */ + kStatus_MCG_AtmIrcUsed = MAKE_STATUS(kStatusGroup_MCG, 4), /*!< IRC is used when using ATM. */ + kStatus_MCG_AtmHardwareFail = MAKE_STATUS(kStatusGroup_MCG, 5), /*!< Hardware fail occurs during ATM. */ + kStatus_MCG_SourceUsed = MAKE_STATUS(kStatusGroup_MCG, 6) /*!< Could not change clock source because + it is used currently. */ +}; + +/*! @brief MCG status flags. */ +enum _mcg_status_flags_t +{ + kMCG_Osc0LostFlag = (1U << 0U), /*!< OSC0 lost. */ + kMCG_Osc0InitFlag = (1U << 1U), /*!< OSC0 crystal initialized. */ + kMCG_RtcOscLostFlag = (1U << 4U), /*!< RTC OSC lost. */ + kMCG_Pll0LostFlag = (1U << 5U), /*!< PLL0 lost. */ + kMCG_Pll0LockFlag = (1U << 6U), /*!< PLL0 locked. */ +}; + +/*! @brief MCG internal reference clock (MCGIRCLK) enable mode definition. */ +enum _mcg_irclk_enable_mode +{ + kMCG_IrclkEnable = MCG_C1_IRCLKEN_MASK, /*!< MCGIRCLK enable. */ + kMCG_IrclkEnableInStop = MCG_C1_IREFSTEN_MASK /*!< MCGIRCLK enable in stop mode. */ +}; + +/*! @brief MCG PLL clock enable mode definition. */ +enum _mcg_pll_enable_mode +{ + kMCG_PllEnableIndependent = MCG_C5_PLLCLKEN0_MASK, /*!< MCGPLLCLK enable indepencent of + MCG clock mode. Generally, PLL + is disabled in FLL modes + (FEI/FBI/FEE/FBE), set PLL clock + enable independent will enable + PLL in the FLL modes. */ + kMCG_PllEnableInStop = MCG_C5_PLLSTEN0_MASK /*!< MCGPLLCLK enable in STOP mode. */ +}; + +/*! @brief MCG mode definitions */ +typedef enum _mcg_mode +{ + kMCG_ModeFEI = 0U, /*!< FEI - FLL Engaged Internal */ + kMCG_ModeFBI, /*!< FBI - FLL Bypassed Internal */ + kMCG_ModeBLPI, /*!< BLPI - Bypassed Low Power Internal */ + kMCG_ModeFEE, /*!< FEE - FLL Engaged External */ + kMCG_ModeFBE, /*!< FBE - FLL Bypassed External */ + kMCG_ModeBLPE, /*!< BLPE - Bypassed Low Power External */ + kMCG_ModePBE, /*!< PBE - PLL Bypassed External */ + kMCG_ModePEE, /*!< PEE - PLL Engaged External */ + kMCG_ModeError /*!< Unknown mode */ +} mcg_mode_t; + +/*! @brief MCG PLL configuration. */ +typedef struct _mcg_pll_config +{ + uint8_t enableMode; /*!< Enable mode. OR'ed value of @ref _mcg_pll_enable_mode. */ + uint8_t prdiv; /*!< Reference divider PRDIV. */ + uint8_t vdiv; /*!< VCO divider VDIV. */ +} mcg_pll_config_t; + +/*! @brief MCG configure structure for mode change. + * + * When porting to a new board, please set the following members + * according to board setting: + * 1. frdiv: If FLL uses the external reference clock, please set this + * value to make sure external reference clock divided by frdiv is + * in the range 31.25kHz to 39.0625kHz. + * 2. The PLL reference clock divider PRDIV: PLL reference clock frequency after + * PRDIV should be in the range of FSL_FEATURE_MCG_PLL_REF_MIN to + * FSL_FEATURE_MCG_PLL_REF_MAX. + */ +typedef struct _mcg_config +{ + mcg_mode_t mcgMode; /*!< MCG mode. */ + + /* ----------------------- MCGIRCCLK settings ------------------------ */ + uint8_t irclkEnableMode; /*!< MCGIRCLK enable mode. */ + mcg_irc_mode_t ircs; /*!< Source, MCG_C2[IRCS]. */ + uint8_t fcrdiv; /*!< Divider, MCG_SC[FCRDIV]. */ + + /* ------------------------ MCG FLL settings ------------------------- */ + uint8_t frdiv; /*!< Divider MCG_C1[FRDIV]. */ + mcg_drs_t drs; /*!< DCO range MCG_C4[DRST_DRS]. */ + mcg_dmx32_t dmx32; /*!< MCG_C4[DMX32]. */ + mcg_oscsel_t oscsel; /*!< OSC select MCG_C7[OSCSEL]. */ + + /* ------------------------ MCG PLL settings ------------------------- */ + mcg_pll_config_t pll0Config; /*!< MCGPLL0CLK configuration. */ + +} mcg_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /* __cplusplus */ + +/*! + * @brief Enable the clock for specific IP. + * + * @param name Which clock to enable, see \ref clock_ip_name_t. + */ +static inline void CLOCK_EnableClock(clock_ip_name_t name) +{ + uint32_t regAddr = SIM_BASE + CLK_GATE_ABSTRACT_REG_OFFSET((uint32_t)name); + (*(volatile uint32_t *)regAddr) |= (1U << CLK_GATE_ABSTRACT_BITS_SHIFT((uint32_t)name)); +} + +/*! + * @brief Disable the clock for specific IP. + * + * @param name Which clock to disable, see \ref clock_ip_name_t. + */ +static inline void CLOCK_DisableClock(clock_ip_name_t name) +{ + uint32_t regAddr = SIM_BASE + CLK_GATE_ABSTRACT_REG_OFFSET((uint32_t)name); + (*(volatile uint32_t *)regAddr) &= ~(1U << CLK_GATE_ABSTRACT_BITS_SHIFT((uint32_t)name)); +} + +/*! + * @brief Set ERCLK32K source. + * + * @param src The value to set ERCLK32K clock source. + */ +static inline void CLOCK_SetEr32kClock(uint32_t src) +{ + SIM->SOPT1 = ((SIM->SOPT1 & ~SIM_SOPT1_OSC32KSEL_MASK) | SIM_SOPT1_OSC32KSEL(src)); +} + +/*! + * @brief Set SDHC0 clock source. + * + * @param src The value to set SDHC0 clock source. + */ +static inline void CLOCK_SetSdhc0Clock(uint32_t src) +{ + SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_SDHCSRC_MASK) | SIM_SOPT2_SDHCSRC(src)); +} + +/*! + * @brief Set debug trace clock source. + * + * @param src The value to set debug trace clock source. + */ +static inline void CLOCK_SetTraceClock(uint32_t src) +{ + SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_TRACECLKSEL_MASK) | SIM_SOPT2_TRACECLKSEL(src)); +} + +/*! + * @brief Set PLLFLLSEL clock source. + * + * @param src The value to set PLLFLLSEL clock source. + */ +static inline void CLOCK_SetPllFllSelClock(uint32_t src) +{ + SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_PLLFLLSEL_MASK) | SIM_SOPT2_PLLFLLSEL(src)); +} +/*! + * @brief Set CLKOUT source. + * + * @param src The value to set CLKOUT source. + */ +static inline void CLOCK_SetClkOutClock(uint32_t src) +{ + SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_CLKOUTSEL_MASK) | SIM_SOPT2_CLKOUTSEL(src)); +} + +/*! + * @brief Set RTC_CLKOUT source. + * + * @param src The value to set RTC_CLKOUT source. + */ +static inline void CLOCK_SetRtcClkOutClock(uint32_t src) +{ + SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_RTCCLKOUTSEL_MASK) | SIM_SOPT2_RTCCLKOUTSEL(src)); +} + +/*! @brief Enable USB FS clock. + * + * @param src USB FS clock source. + * @param freq The frequency specified by src. + * @retval true The clock is set successfully. + * @retval false The clock source is invalid to get proper USB FS clock. + */ +bool CLOCK_EnableUsbfs0Clock(clock_usb_src_t src, uint32_t freq); + +/*! @brief Disable USB FS clock. + * + * Disable USB FS clock. + */ +static inline void CLOCK_DisableUsbfs0Clock(void) +{ + CLOCK_DisableClock(kCLOCK_Usbfs0); +} + +/*! + * @brief System clock divider + * + * Set the SIM_CLKDIV1[OUTDIV1], SIM_CLKDIV1[OUTDIV2], SIM_CLKDIV1[OUTDIV3], SIM_CLKDIV1[OUTDIV4]. + * + * @param outdiv1 Clock 1 output divider value. + * + * @param outdiv2 Clock 2 output divider value. + * + * @param outdiv3 Clock 3 output divider value. + * + * @param outdiv4 Clock 4 output divider value. + */ +static inline void CLOCK_SetOutDiv(uint32_t outdiv1, uint32_t outdiv2, uint32_t outdiv3, uint32_t outdiv4) +{ + SIM->CLKDIV1 = SIM_CLKDIV1_OUTDIV1(outdiv1) | SIM_CLKDIV1_OUTDIV2(outdiv2) | SIM_CLKDIV1_OUTDIV3(outdiv3) | + SIM_CLKDIV1_OUTDIV4(outdiv4); +} + +/*! + * @brief Gets the clock frequency for a specific clock name. + * + * This function checks the current clock configurations and then calculates + * the clock frequency for a specific clock name defined in clock_name_t. + * The MCG must be properly configured before using this function. + * + * @param clockName Clock names defined in clock_name_t + * @return Clock frequency value in Hertz + */ +uint32_t CLOCK_GetFreq(clock_name_t clockName); + +/*! + * @brief Get the core clock or system clock frequency. + * + * @return Clock frequency in Hz. + */ +uint32_t CLOCK_GetCoreSysClkFreq(void); + +/*! + * @brief Get the platform clock frequency. + * + * @return Clock frequency in Hz. + */ +uint32_t CLOCK_GetPlatClkFreq(void); + +/*! + * @brief Get the bus clock frequency. + * + * @return Clock frequency in Hz. + */ +uint32_t CLOCK_GetBusClkFreq(void); + +/*! + * @brief Get the flexbus clock frequency. + * + * @return Clock frequency in Hz. + */ +uint32_t CLOCK_GetFlexBusClkFreq(void); + +/*! + * @brief Get the flash clock frequency. + * + * @return Clock frequency in Hz. + */ +uint32_t CLOCK_GetFlashClkFreq(void); + +/*! + * @brief Get the output clock frequency selected by SIM[PLLFLLSEL]. + * + * @return Clock frequency in Hz. + */ +uint32_t CLOCK_GetPllFllSelClkFreq(void); + +/*! + * @brief Get the external reference 32K clock frequency (ERCLK32K). + * + * @return Clock frequency in Hz. + */ +uint32_t CLOCK_GetEr32kClkFreq(void); + +/*! + * @brief Get the OSC0 external reference clock frequency (OSC0ERCLK). + * + * @return Clock frequency in Hz. + */ +uint32_t CLOCK_GetOsc0ErClkFreq(void); + +/*! + * @brief Set the clock configure in SIM module. + * + * This function sets system layer clock settings in SIM module. + * + * @param config Pointer to the configure structure. + */ +void CLOCK_SetSimConfig(sim_clock_config_t const *config); + +/*! + * @brief Set the system clock dividers in SIM to safe value. + * + * The system level clocks (core clock, bus clock, flexbus clock and flash clock) + * must be in allowed ranges. During MCG clock mode switch, the MCG output clock + * changes then the system level clocks may be out of range. This function could + * be used before MCG mode change, to make sure system level clocks are in allowed + * range. + * + * @param config Pointer to the configure structure. + */ +static inline void CLOCK_SetSimSafeDivs(void) +{ + SIM->CLKDIV1 = 0x01240000U; +} + +/*! @name MCG frequency functions. */ +/*@{*/ + +/*! + * @brief Get the MCG output clock(MCGOUTCLK) frequency. + * + * This function gets the MCG output clock frequency (Hz) based on current MCG + * register value. + * + * @return The frequency of MCGOUTCLK. + */ +uint32_t CLOCK_GetOutClkFreq(void); + +/*! + * @brief Get the MCG FLL clock(MCGFLLCLK) frequency. + * + * This function gets the MCG FLL clock frequency (Hz) based on current MCG + * register value. The FLL is only enabled in FEI/FBI/FEE/FBE mode, in other + * modes, FLL is disabled in low power state. + * + * @return The frequency of MCGFLLCLK. + */ +uint32_t CLOCK_GetFllFreq(void); + +/*! + * @brief Get the MCG internal reference clock(MCGIRCLK) frequency. + * + * This function gets the MCG internal reference clock frequency (Hz) based + * on current MCG register value. + * + * @return The frequency of MCGIRCLK. + */ +uint32_t CLOCK_GetInternalRefClkFreq(void); + +/*! + * @brief Get the MCG fixed frequency clock(MCGFFCLK) frequency. + * + * This function gets the MCG fixed frequency clock frequency (Hz) based + * on current MCG register value. + * + * @return The frequency of MCGFFCLK. + */ +uint32_t CLOCK_GetFixedFreqClkFreq(void); + +/*! + * @brief Get the MCG PLL0 clock(MCGPLL0CLK) frequency. + * + * This function gets the MCG PLL0 clock frequency (Hz) based on current MCG + * register value. + * + * @return The frequency of MCGPLL0CLK. + */ +uint32_t CLOCK_GetPll0Freq(void); + +/*@}*/ + +/*! @name MCG clock configuration. */ +/*@{*/ + +/*! + * @brief Enable or disable MCG low power. + * + * Enable MCG low power will disable the PLL and FLL in bypass modes. That is, + * in FBE and PBE modes, enable low power will set MCG to BLPE mode, in FBI and + * PBI mode, enable low power will set MCG to BLPI mode. + * When disable MCG low power, the PLL or FLL will be enabled based on MCG setting. + * + * @param enable True to enable MCG low power, false to disable MCG low power. + */ +static inline void CLOCK_SetLowPowerEnable(bool enable) +{ + if (enable) + { + MCG->C2 |= MCG_C2_LP_MASK; + } + else + { + MCG->C2 &= ~MCG_C2_LP_MASK; + } +} + +/*! + * @brief Configure the Internal Reference clock (MCGIRCLK) + * + * This function setups the \c MCGIRCLK base on parameters. It selects the IRC + * source, if fast IRC is used, this function also sets the fast IRC divider. + * This function also sets whether enable \c MCGIRCLK in stop mode. + * Calling this function in FBI/PBI/BLPI modes may change the system clock, so + * it is not allowed to use this in these modes. + * + * @param enableMode MCGIRCLK enable mode, OR'ed value of @ref _mcg_irclk_enable_mode. + * @param ircs MCGIRCLK clock source, choose fast or slow. + * @param fcrdiv Fast IRC divider setting (\c FCRDIV). + * @retval kStatus_MCG_SourceUsed MCGIRCLK is used as system clock, should not configure MCGIRCLK. + * @retval kStatus_Success MCGIRCLK configuration finished successfully. + */ +status_t CLOCK_SetInternalRefClkConfig(uint8_t enableMode, mcg_irc_mode_t ircs, uint8_t fcrdiv); + +/*! + * @brief Select the MCG external reference clock. + * + * Select the MCG external reference clock source, it changes the MCG_C7[OSCSEL] + * and wait for the clock source stable. Should not change external reference + * clock in FEE/FBE/BLPE/PBE/PEE mdes, so don't call this function in these modes. + * + * @param oscsel MCG external reference clock source, MCG_C7[OSCSEL]. + * @retval kStatus_MCG_SourceUsed External reference clock is used, should not change. + * @retval kStatus_Success External reference clock set successfully. + */ +status_t CLOCK_SetExternalRefClkConfig(mcg_oscsel_t oscsel); + +/*! + * @brief Enables the PLL0 in FLL mode. + * + * This function setups the PLL0 in FLL mode, make sure the PLL reference + * clock is enabled before calling this function. This function reconfigures + * the PLL0, make sure the PLL0 is not used as a clock source while calling + * this function. The function CLOCK_CalcPllDiv can help to get the proper PLL + * divider values. + * + * @param config Pointer to the configuration structure. + */ +void CLOCK_EnablePll0(mcg_pll_config_t const *config); + +/*! + * @brief Disables the PLL0 in FLL mode. + * + * This function disables the PLL0 in FLL mode, it should be used together with + * @ref CLOCK_EnablePll0. + */ +static inline void CLOCK_DisablePll0(void) +{ + MCG->C5 &= ~(MCG_C5_PLLCLKEN0_MASK | MCG_C5_PLLSTEN0_MASK); +} + +/*! + * @brief Calculates the PLL divider setting for desired output frequency. + * + * This function calculates the proper reference clock divider (\c PRDIV) and + * VCO divider (\c VDIV) to generate desired PLL output frequency. It returns the + * closest frequency PLL could generate, the corresponding \c PRDIV/VDIV are + * returned from parameters. If desired frequency is not valid, this function + * returns 0. + * + * @param refFreq PLL reference clock frequency. + * @param desireFreq Desired PLL output frequency. + * @param prdiv PRDIV value to generate desired PLL frequency. + * @param vdiv VDIV value to generate desired PLL frequency. + * @return Closest frequency PLL could generate. + */ +uint32_t CLOCK_CalcPllDiv(uint32_t refFreq, uint32_t desireFreq, uint8_t *prdiv, uint8_t *vdiv); + +/*@}*/ + +/*! @name MCG clock lock monitor functions. */ +/*@{*/ + +/*! + * @brief Set the OSC0 clock monitor mode. + * + * Set the OSC0 clock monitor mode, see @ref mcg_monitor_mode_t for details. + * + * @param mode The monitor mode to set. + */ +void CLOCK_SetOsc0MonitorMode(mcg_monitor_mode_t mode); + +/*! + * @brief Set the RTC OSC clock monitor mode. + * + * Set the RTC OSC clock monitor mode, see @ref mcg_monitor_mode_t for details. + * + * @param mode The monitor mode to set. + */ +void CLOCK_SetRtcOscMonitorMode(mcg_monitor_mode_t mode); + +/*! + * @brief Set the PLL0 clock monitor mode. + * + * Set the PLL0 clock monitor mode, see @ref mcg_monitor_mode_t for details. + * + * @param mode The monitor mode to set. + */ +void CLOCK_SetPll0MonitorMode(mcg_monitor_mode_t mode); + +/*! + * @brief Get the MCG status flags. + * + * This function gets the MCG clock status flags, all the status flags are + * returned as a logical OR of the enumeration @ref _mcg_status_flags_t. To + * check specific flags, compare the return value with the flags. + * + * Example: + * @code + // To check the clock lost lock status of OSC0 and PLL0. + uint32_t mcgFlags; + + mcgFlags = CLOCK_GetStatusFlags(); + + if (mcgFlags & kMCG_Osc0LostFlag) + { + // OSC0 clock lock lost. Do something. + } + if (mcgFlags & kMCG_Pll0LostFlag) + { + // PLL0 clock lock lost. Do something. + } + @endcode + * + * @return Logical OR value of the @ref _mcg_status_flags_t. + */ +uint32_t CLOCK_GetStatusFlags(void); + +/*! + * @brief Clears the MCG status flags. + * + * This function clears the MCG clock lock lost status. The parameter is logical + * OR value of the flags to clear, see @ref _mcg_status_flags_t. + * + * Example: + * @code + // To clear the clock lost lock status flags of OSC0 and PLL0. + + CLOCK_ClearStatusFlags(kMCG_Osc0LostFlag | kMCG_Pll0LostFlag); + @endcode + * + * @param mask The status flags to clear. This is a logical OR of members of the + * enumeration @ref _mcg_status_flags_t. + */ +void CLOCK_ClearStatusFlags(uint32_t mask); + +/*@}*/ + +/*! + * @name OSC configuration + * @{ + */ + +/*! + * @brief Configures the OSC external reference clock (OSCERCLK). + * + * This function configures the OSC external reference clock (OSCERCLK). + * For example, to enable the OSCERCLK in normal mode and stop mode, and also set + * the output divider to 1, as follows: + * + @code + oscer_config_t config = + { + .enableMode = kOSC_ErClkEnable | kOSC_ErClkEnableInStop, + .erclkDiv = 1U, + }; + + OSC_SetExtRefClkConfig(OSC, &config); + @endcode + * + * @param base OSC peripheral address. + * @param config Pointer to the configuration structure. + */ +static inline void OSC_SetExtRefClkConfig(OSC_Type *base, oscer_config_t const *config) +{ + uint8_t reg = base->CR; + + reg &= ~(OSC_CR_ERCLKEN_MASK | OSC_CR_EREFSTEN_MASK); + reg |= config->enableMode; + + base->CR = reg; +} + +/*! + * @brief Sets the capacitor load configuration for the oscillator. + * + * This function sets the specified capacitors configuration for the oscillator. + * This should be done in the early system level initialization function call + * based on the system configuration. + * + * @param base OSC peripheral address. + * @param capLoad OR'ed value for the capacitor load option, see \ref _osc_cap_load. + * + * Example: + @code + // To enable only 2 pF and 8 pF capacitor load, please use like this. + OSC_SetCapLoad(OSC, kOSC_Cap2P | kOSC_Cap8P); + @endcode + */ +static inline void OSC_SetCapLoad(OSC_Type *base, uint8_t capLoad) +{ + uint8_t reg = base->CR; + + reg &= ~(OSC_CR_SC2P_MASK | OSC_CR_SC4P_MASK | OSC_CR_SC8P_MASK | OSC_CR_SC16P_MASK); + reg |= capLoad; + + base->CR = reg; +} + +/*! + * @brief Initialize OSC0. + * + * This function initializes OSC0 according to board configuration. + * + * @param config Pointer to the OSC0 configuration structure. + */ +void CLOCK_InitOsc0(osc_config_t const *config); + +/*! + * @brief Deinitialize OSC0. + * + * This function deinitializes OSC0. + */ +void CLOCK_DeinitOsc0(void); + +/* @} */ + +/*! + * @name External clock frequency + * @{ + */ + +/*! + * @brief Set the XTAL0 frequency based on board setting. + * + * @param freq The XTAL0/EXTAL0 input clock frequency in Hz. + */ +static inline void CLOCK_SetXtal0Freq(uint32_t freq) +{ + g_xtal0Freq = freq; +} + +/*! + * @brief Set the XTAL32/RTC_CLKIN frequency based on board setting. + * + * @param freq The XTAL32/EXTAL32/RTC_CLKIN input clock frequency in Hz. + */ +static inline void CLOCK_SetXtal32Freq(uint32_t freq) +{ + g_xtal32Freq = freq; +} +/* @} */ + +/*! + * @name MCG auto-trim machine. + * @{ + */ + +/*! + * @brief Auto trim the internal reference clock. + * + * This function trims the internal reference clock using external clock. If + * successful, it returns the kStatus_Success and the frequency after + * trimming is received in the parameter @p actualFreq. If an error occurs, + * the error code is returned. + * + * @param extFreq External clock frequency, should be bus clock. + * @param desireFreq Frequency want to trim to. + * @param actualFreq Actual frequency after trim. + * @param atms Trim fast or slow internal reference clock. + * @retval kStatus_Success ATM success. + * @retval kStatus_MCG_AtmBusClockInvalid The bus clock is not in allowed range for ATM. + * @retval kStatus_MCG_AtmDesiredFreqInvalid MCGIRCLK could not be trimmed to the desired frequency. + * @retval kStatus_MCG_AtmIrcUsed Could not trim because MCGIRCLK is used as bus clock source. + * @retval kStatus_MCG_AtmHardwareFail Hardware fails during trim. + */ +status_t CLOCK_TrimInternalRefClk(uint32_t extFreq, uint32_t desireFreq, uint32_t *actualFreq, mcg_atm_select_t atms); +/* @} */ + +/*! @name MCG mode functions. */ +/*@{*/ + +/*! + * @brief Gets the current MCG mode. + * + * This function checks the MCG registers and determine current MCG mode. + * + * @return Current MCG mode or error code, see @ref mcg_mode_t. + */ +mcg_mode_t CLOCK_GetMode(void); + +/*! + * @brief Set MCG to FEI mode. + * + * This function sets MCG to FEI mode. If could not set to FEI mode directly + * from current mode, this function returns error. + * + * @param dmx32 DMX32 in FEI mode. + * @param drs The DCO range selection. + * @param fllStableDelay Delay function to make sure FLL is stable, if pass + * in NULL, then does not delay. + * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode. + * @retval kStatus_Success Switch to target mode successfully. + * @note If @p dmx32 is set to kMCG_Dmx32Fine, the slow IRC must not be trimmed + * to frequency above 32768Hz. + */ +status_t CLOCK_SetFeiMode(mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void)); + +/*! + * @brief Set MCG to FEE mode. + * + * This function sets MCG to FEE mode. If could not set to FEE mode directly + * from current mode, this function returns error. + * + * @param frdiv FLL reference clock divider setting, FRDIV. + * @param dmx32 DMX32 in FEE mode. + * @param drs The DCO range selection. + * @param fllStableDelay Delay function to make sure FLL is stable, if pass + * in NULL, then does not delay. + * + * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode. + * @retval kStatus_Success Switch to target mode successfully. + */ +status_t CLOCK_SetFeeMode(uint8_t frdiv, mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void)); + +/*! + * @brief Set MCG to FBI mode. + * + * This function sets MCG to FBI mode. If could not set to FBI mode directly + * from current mode, this function returns error. + * + * @param dmx32 DMX32 in FBI mode. + * @param drs The DCO range selection. + * @param fllStableDelay Delay function to make sure FLL is stable. If FLL + * is not used in FBI mode, this parameter could be NULL. Pass in + * NULL does not delay. + * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode. + * @retval kStatus_Success Switch to target mode successfully. + * @note If @p dmx32 is set to kMCG_Dmx32Fine, the slow IRC must not be trimmed + * to frequency above 32768Hz. + */ +status_t CLOCK_SetFbiMode(mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void)); + +/*! + * @brief Set MCG to FBE mode. + * + * This function sets MCG to FBE mode. If could not set to FBE mode directly + * from current mode, this function returns error. + * + * @param frdiv FLL reference clock divider setting, FRDIV. + * @param dmx32 DMX32 in FBE mode. + * @param drs The DCO range selection. + * @param fllStableDelay Delay function to make sure FLL is stable. If FLL + * is not used in FBE mode, this parameter could be NULL. Pass in NULL + * does not delay. + * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode. + * @retval kStatus_Success Switch to target mode successfully. + */ +status_t CLOCK_SetFbeMode(uint8_t frdiv, mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void)); + +/*! + * @brief Set MCG to BLPI mode. + * + * This function sets MCG to BLPI mode. If could not set to BLPI mode directly + * from current mode, this function returns error. + * + * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode. + * @retval kStatus_Success Switch to target mode successfully. + */ +status_t CLOCK_SetBlpiMode(void); + +/*! + * @brief Set MCG to BLPE mode. + * + * This function sets MCG to BLPE mode. If could not set to BLPE mode directly + * from current mode, this function returns error. + * + * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode. + * @retval kStatus_Success Switch to target mode successfully. + */ +status_t CLOCK_SetBlpeMode(void); + +/*! + * @brief Set MCG to PBE mode. + * + * This function sets MCG to PBE mode. If could not set to PBE mode directly + * from current mode, this function returns error. + * + * @param pllcs The PLL selection, PLLCS. + * @param config Pointer to the PLL configuration. + * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode. + * @retval kStatus_Success Switch to target mode successfully. + * + * @note + * 1. The parameter \c pllcs selects the PLL, for some platforms, there is + * only one PLL, the parameter pllcs is kept for interface compatible. + * 2. The parameter \c config is the PLL configuration structure, on some + * platforms, could choose the external PLL directly. This means that the + * configuration structure is not necessary, pass in NULL for this case. + * For example: CLOCK_SetPbeMode(kMCG_OscselOsc, kMCG_PllClkSelExtPll, NULL); + */ +status_t CLOCK_SetPbeMode(mcg_pll_clk_select_t pllcs, mcg_pll_config_t const *config); + +/*! + * @brief Set MCG to PEE mode. + * + * This function sets MCG to PEE mode. + * + * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode. + * @retval kStatus_Success Switch to target mode successfully. + * + * @note This function only change CLKS to use PLL/FLL output. If the + * PRDIV/VDIV are different from PBE mode, please setup these + * settings in PBE mode and wait for stable then switch to PEE mode. + */ +status_t CLOCK_SetPeeMode(void); + +/*! + * @brief Switch MCG to FBE mode quickly from external mode. + * + * This function changes MCG from external modes (PEE/PBE/BLPE/FEE) to FBE mode quickly. + * It only changes to use external clock as the system clock souce and disable PLL, but does not + * configure FLL settings. This is a lite function with small code size, it is useful + * during mode switch. For example, to switch from PEE mode to FEI mode: + * + * @code + * CLOCK_ExternalModeToFbeModeQuick(); + * CLOCK_SetFeiMode(...); + * @endcode + * + * @retval kStatus_Success Change successfully. + * @retval kStatus_MCG_ModeInvalid Current mode is not external modes, should not call this function. + */ +status_t CLOCK_ExternalModeToFbeModeQuick(void); + +/*! + * @brief Switch MCG to FBI mode quickly from internal modes. + * + * This function changes MCG from internal modes (PEI/PBI/BLPI/FEI) to FBI mode quickly. + * It only changes to use MCGIRCLK as the system clock souce and disable PLL, but does not + * configure FLL settings. This is a lite function with small code size, it is useful + * during mode switch. For example, to switch from PEI mode to FEE mode: + * + * @code + * CLOCK_InternalModeToFbiModeQuick(); + * CLOCK_SetFeeMode(...); + * @endcode + * + * @retval kStatus_Success Change successfully. + * @retval kStatus_MCG_ModeInvalid Current mode is not internal mode, should not call this function. + */ +status_t CLOCK_InternalModeToFbiModeQuick(void); + +/*! + * @brief Set MCG to FEI mode during system boot up. + * + * This function sets MCG to FEI mode from reset mode, it could be used to + * set up MCG during system boot up. + * + * @param dmx32 DMX32 in FEI mode. + * @param drs The DCO range selection. + * @param fllStableDelay Delay function to make sure FLL is stable. + * + * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode. + * @retval kStatus_Success Switch to target mode successfully. + * @note If @p dmx32 is set to kMCG_Dmx32Fine, the slow IRC must not be trimmed + * to frequency above 32768Hz. + */ +status_t CLOCK_BootToFeiMode(mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void)); + +/*! + * @brief Set MCG to FEE mode during system bootup. + * + * This function sets MCG to FEE mode from reset mode, it could be used to + * set up MCG during system boot up. + * + * @param oscsel OSC clock select, OSCSEL. + * @param frdiv FLL reference clock divider setting, FRDIV. + * @param dmx32 DMX32 in FEE mode. + * @param drs The DCO range selection. + * @param fllStableDelay Delay function to make sure FLL is stable. + * + * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode. + * @retval kStatus_Success Switch to target mode successfully. + */ +status_t CLOCK_BootToFeeMode( + mcg_oscsel_t oscsel, uint8_t frdiv, mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void)); + +/*! + * @brief Set MCG to BLPI mode during system boot up. + * + * This function sets MCG to BLPI mode from reset mode, it could be used to + * setup MCG during sytem boot up. + * + * @param fcrdiv Fast IRC divider, FCRDIV. + * @param ircs The internal reference clock to select, IRCS. + * @param ircEnableMode The MCGIRCLK enable mode, OR'ed value of @ref _mcg_irclk_enable_mode. + * + * @retval kStatus_MCG_SourceUsed Could not change MCGIRCLK setting. + * @retval kStatus_Success Switch to target mode successfully. + */ +status_t CLOCK_BootToBlpiMode(uint8_t fcrdiv, mcg_irc_mode_t ircs, uint8_t ircEnableMode); + +/*! + * @brief Set MCG to BLPE mode during sytem boot up. + * + * This function sets MCG to BLPE mode from reset mode, it could be used to + * setup MCG during sytem boot up. + * + * @param oscsel OSC clock select, MCG_C7[OSCSEL]. + * + * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode. + * @retval kStatus_Success Switch to target mode successfully. + */ +status_t CLOCK_BootToBlpeMode(mcg_oscsel_t oscsel); + +/*! + * @brief Set MCG to PEE mode during system boot up. + * + * This function sets MCG to PEE mode from reset mode, it could be used to + * setup MCG during system boot up. + * + * @param oscsel OSC clock select, MCG_C7[OSCSEL]. + * @param pllcs The PLL selection, PLLCS. + * @param config Pointer to the PLL configuration. + * + * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode. + * @retval kStatus_Success Switch to target mode successfully. + */ +status_t CLOCK_BootToPeeMode(mcg_oscsel_t oscsel, mcg_pll_clk_select_t pllcs, mcg_pll_config_t const *config); + +/*! + * @brief Set MCG to some target mode. + * + * This function sets MCG to some target mode defined by the configure + * structure, if cannot switch to target mode directly, this function will + * choose the proper path. + * + * @param config Pointer to the target MCG mode configuration structure. + * @return Return kStatus_Success if switch successfully, otherwise return error code #_mcg_status. + * + * @note If external clock is used in the target mode, please make sure it is + * enabled, for example, if the OSC0 is used, please setup OSC0 correctly before + * this funciton. + */ +status_t CLOCK_SetMcgConfig(mcg_config_t const *config); + +/*@}*/ + +#if defined(__cplusplus) +} +#endif /* __cplusplus */ + +/*! @} */ + +#endif /* _FSL_CLOCK_H_ */ diff --git a/drivers/fsl_cmp.c b/drivers/fsl_cmp.c new file mode 100644 index 0000000..557a0c5 --- /dev/null +++ b/drivers/fsl_cmp.c @@ -0,0 +1,279 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_cmp.h" + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Get instance number for CMP module. + * + * @param base CMP peripheral base address + */ +static uint32_t CMP_GetInstance(CMP_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/*! @brief Pointers to CMP bases for each instance. */ +static CMP_Type *const s_cmpBases[] = CMP_BASE_PTRS; +/*! @brief Pointers to CMP clocks for each instance. */ +static const clock_ip_name_t s_cmpClocks[] = CMP_CLOCKS; + +/******************************************************************************* + * Codes + ******************************************************************************/ +static uint32_t CMP_GetInstance(CMP_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_CMP_COUNT; instance++) + { + if (s_cmpBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_CMP_COUNT); + + return instance; +} + +void CMP_Init(CMP_Type *base, const cmp_config_t *config) +{ + assert(NULL != config); + + uint8_t tmp8; + + /* Enable the clock. */ + CLOCK_EnableClock(s_cmpClocks[CMP_GetInstance(base)]); + + /* Configure. */ + CMP_Enable(base, false); /* Disable the CMP module during configuring. */ + /* CMPx_CR1. */ + tmp8 = base->CR1 & ~(CMP_CR1_PMODE_MASK | CMP_CR1_INV_MASK | CMP_CR1_COS_MASK | CMP_CR1_OPE_MASK); + if (config->enableHighSpeed) + { + tmp8 |= CMP_CR1_PMODE_MASK; + } + if (config->enableInvertOutput) + { + tmp8 |= CMP_CR1_INV_MASK; + } + if (config->useUnfilteredOutput) + { + tmp8 |= CMP_CR1_COS_MASK; + } + if (config->enablePinOut) + { + tmp8 |= CMP_CR1_OPE_MASK; + } +#if defined(FSL_FEATURE_CMP_HAS_TRIGGER_MODE) && FSL_FEATURE_CMP_HAS_TRIGGER_MODE + if (config->enableTriggerMode) + { + tmp8 |= CMP_CR1_TRIGM_MASK; + } + else + { + tmp8 &= ~CMP_CR1_TRIGM_MASK; + } +#endif /* FSL_FEATURE_CMP_HAS_TRIGGER_MODE */ + base->CR1 = tmp8; + + /* CMPx_CR0. */ + tmp8 = base->CR0 & ~CMP_CR0_HYSTCTR_MASK; + tmp8 |= CMP_CR0_HYSTCTR(config->hysteresisMode); + base->CR0 = tmp8; + + CMP_Enable(base, config->enableCmp); /* Enable the CMP module after configured or not. */ +} + +void CMP_Deinit(CMP_Type *base) +{ + /* Disable the CMP module. */ + CMP_Enable(base, false); + + /* Disable the clock. */ + CLOCK_DisableClock(s_cmpClocks[CMP_GetInstance(base)]); +} + +void CMP_GetDefaultConfig(cmp_config_t *config) +{ + assert(NULL != config); + + config->enableCmp = true; /* Enable the CMP module after initialization. */ + config->hysteresisMode = kCMP_HysteresisLevel0; + config->enableHighSpeed = false; + config->enableInvertOutput = false; + config->useUnfilteredOutput = false; + config->enablePinOut = false; +#if defined(FSL_FEATURE_CMP_HAS_TRIGGER_MODE) && FSL_FEATURE_CMP_HAS_TRIGGER_MODE + config->enableTriggerMode = false; +#endif /* FSL_FEATURE_CMP_HAS_TRIGGER_MODE */ +} + +void CMP_SetInputChannels(CMP_Type *base, uint8_t positiveChannel, uint8_t negativeChannel) +{ + uint8_t tmp8 = base->MUXCR; + + tmp8 &= ~(CMP_MUXCR_PSEL_MASK | CMP_MUXCR_MSEL_MASK); + tmp8 |= CMP_MUXCR_PSEL(positiveChannel) | CMP_MUXCR_MSEL(negativeChannel); + base->MUXCR = tmp8; +} + +#if defined(FSL_FEATURE_CMP_HAS_DMA) && FSL_FEATURE_CMP_HAS_DMA +void CMP_EnableDMA(CMP_Type *base, bool enable) +{ + uint8_t tmp8 = base->SCR & ~(CMP_SCR_CFR_MASK | CMP_SCR_CFF_MASK); /* To avoid change the w1c bits. */ + + if (enable) + { + tmp8 |= CMP_SCR_DMAEN_MASK; + } + else + { + tmp8 &= ~CMP_SCR_DMAEN_MASK; + } + base->SCR = tmp8; +} +#endif /* FSL_FEATURE_CMP_HAS_DMA */ + +void CMP_SetFilterConfig(CMP_Type *base, const cmp_filter_config_t *config) +{ + assert(NULL != config); + + uint8_t tmp8; + +#if defined(FSL_FEATURE_CMP_HAS_EXTERNAL_SAMPLE_SUPPORT) && FSL_FEATURE_CMP_HAS_EXTERNAL_SAMPLE_SUPPORT + /* Choose the clock source for sampling. */ + if (config->enableSample) + { + base->CR1 |= CMP_CR1_SE_MASK; /* Choose the external SAMPLE clock. */ + } + else + { + base->CR1 &= ~CMP_CR1_SE_MASK; /* Choose the internal divided bus clock. */ + } +#endif /* FSL_FEATURE_CMP_HAS_EXTERNAL_SAMPLE_SUPPORT */ + /* Set the filter count. */ + tmp8 = base->CR0 & ~CMP_CR0_FILTER_CNT_MASK; + tmp8 |= CMP_CR0_FILTER_CNT(config->filterCount); + base->CR0 = tmp8; + /* Set the filter period. It is used as the divider to bus clock. */ + base->FPR = CMP_FPR_FILT_PER(config->filterPeriod); +} + +void CMP_SetDACConfig(CMP_Type *base, const cmp_dac_config_t *config) +{ + uint8_t tmp8 = 0U; + + if (NULL == config) + { + /* Passing "NULL" as input parameter means no available configuration. So the DAC feature is disabled.*/ + base->DACCR = 0U; + return; + } + /* CMPx_DACCR. */ + tmp8 |= CMP_DACCR_DACEN_MASK; /* Enable the internal DAC. */ + if (kCMP_VrefSourceVin2 == config->referenceVoltageSource) + { + tmp8 |= CMP_DACCR_VRSEL_MASK; + } + tmp8 |= CMP_DACCR_VOSEL(config->DACValue); + + base->DACCR = tmp8; +} + +void CMP_EnableInterrupts(CMP_Type *base, uint32_t mask) +{ + uint8_t tmp8 = base->SCR & ~(CMP_SCR_CFR_MASK | CMP_SCR_CFF_MASK); /* To avoid change the w1c bits. */ + + if (0U != (kCMP_OutputRisingInterruptEnable & mask)) + { + tmp8 |= CMP_SCR_IER_MASK; + } + if (0U != (kCMP_OutputFallingInterruptEnable & mask)) + { + tmp8 |= CMP_SCR_IEF_MASK; + } + base->SCR = tmp8; +} + +void CMP_DisableInterrupts(CMP_Type *base, uint32_t mask) +{ + uint8_t tmp8 = base->SCR & ~(CMP_SCR_CFR_MASK | CMP_SCR_CFF_MASK); /* To avoid change the w1c bits. */ + + if (0U != (kCMP_OutputRisingInterruptEnable & mask)) + { + tmp8 &= ~CMP_SCR_IER_MASK; + } + if (0U != (kCMP_OutputFallingInterruptEnable & mask)) + { + tmp8 &= ~CMP_SCR_IEF_MASK; + } + base->SCR = tmp8; +} + +uint32_t CMP_GetStatusFlags(CMP_Type *base) +{ + uint32_t ret32 = 0U; + + if (0U != (CMP_SCR_CFR_MASK & base->SCR)) + { + ret32 |= kCMP_OutputRisingEventFlag; + } + if (0U != (CMP_SCR_CFF_MASK & base->SCR)) + { + ret32 |= kCMP_OutputFallingEventFlag; + } + if (0U != (CMP_SCR_COUT_MASK & base->SCR)) + { + ret32 |= kCMP_OutputAssertEventFlag; + } + return ret32; +} + +void CMP_ClearStatusFlags(CMP_Type *base, uint32_t mask) +{ + uint8_t tmp8 = base->SCR & ~(CMP_SCR_CFR_MASK | CMP_SCR_CFF_MASK); /* To avoid change the w1c bits. */ + + if (0U != (kCMP_OutputRisingEventFlag & mask)) + { + tmp8 |= CMP_SCR_CFR_MASK; + } + if (0U != (kCMP_OutputFallingEventFlag & mask)) + { + tmp8 |= CMP_SCR_CFF_MASK; + } + base->SCR = tmp8; +} diff --git a/drivers/fsl_cmp.h b/drivers/fsl_cmp.h new file mode 100644 index 0000000..4c85bba --- /dev/null +++ b/drivers/fsl_cmp.h @@ -0,0 +1,345 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_CMP_H_ +#define _FSL_CMP_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup cmp + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief CMP driver version 2.0.0. */ +#define FSL_CMP_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) +/*@}*/ + +/*! +* @brief Interrupt enable/disable mask. +*/ +enum _cmp_interrupt_enable +{ + kCMP_OutputRisingInterruptEnable = CMP_SCR_IER_MASK, /*!< Comparator interrupt enable rising. */ + kCMP_OutputFallingInterruptEnable = CMP_SCR_IEF_MASK, /*!< Comparator interrupt enable falling. */ +}; + +/*! + * @brief Status flags' mask. + */ +enum _cmp_status_flags +{ + kCMP_OutputRisingEventFlag = CMP_SCR_CFR_MASK, /*!< Rising-edge on compare output has occurred. */ + kCMP_OutputFallingEventFlag = CMP_SCR_CFF_MASK, /*!< Falling-edge on compare output has occurred. */ + kCMP_OutputAssertEventFlag = CMP_SCR_COUT_MASK, /*!< Return the current value of the analog comparator output. */ +}; + +/*! + * @brief CMP Hysteresis mode. + */ +typedef enum _cmp_hysteresis_mode +{ + kCMP_HysteresisLevel0 = 0U, /*!< Hysteresis level 0. */ + kCMP_HysteresisLevel1 = 1U, /*!< Hysteresis level 1. */ + kCMP_HysteresisLevel2 = 2U, /*!< Hysteresis level 2. */ + kCMP_HysteresisLevel3 = 3U, /*!< Hysteresis level 3. */ +} cmp_hysteresis_mode_t; + +/*! + * @brief CMP Voltage Reference source. + */ +typedef enum _cmp_reference_voltage_source +{ + kCMP_VrefSourceVin1 = 0U, /*!< Vin1 is selected as resistor ladder network supply reference Vin. */ + kCMP_VrefSourceVin2 = 1U, /*!< Vin2 is selected as resistor ladder network supply reference Vin. */ +} cmp_reference_voltage_source_t; + +/*! + * @brief Configuration for the comparator. + */ +typedef struct _cmp_config +{ + bool enableCmp; /*!< Enable the CMP module. */ + cmp_hysteresis_mode_t hysteresisMode; /*!< CMP Hysteresis mode. */ + bool enableHighSpeed; /*!< Enable High-speed comparison mode. */ + bool enableInvertOutput; /*!< Enable inverted comparator output. */ + bool useUnfilteredOutput; /*!< Set compare output(COUT) to equal COUTA(true) or COUT(false). */ + bool enablePinOut; /*!< The comparator output is available on the associated pin. */ +#if defined(FSL_FEATURE_CMP_HAS_TRIGGER_MODE) && FSL_FEATURE_CMP_HAS_TRIGGER_MODE + bool enableTriggerMode; /*!< Enable the trigger mode. */ +#endif /* FSL_FEATURE_CMP_HAS_TRIGGER_MODE */ +} cmp_config_t; + +/*! + * @brief Configuration for the filter. + */ +typedef struct _cmp_filter_config +{ +#if defined(FSL_FEATURE_CMP_HAS_EXTERNAL_SAMPLE_SUPPORT) && FSL_FEATURE_CMP_HAS_EXTERNAL_SAMPLE_SUPPORT + bool enableSample; /*!< Using external SAMPLE as sampling clock input, or using divided bus clock. */ +#endif /* FSL_FEATURE_CMP_HAS_EXTERNAL_SAMPLE_SUPPORT */ + uint8_t filterCount; /*!< Filter Sample Count. Available range is 1-7, 0 would cause the filter disabled.*/ + uint8_t filterPeriod; /*!< Filter Sample Period. The divider to bus clock. Available range is 0-255. */ +} cmp_filter_config_t; + +/*! + * @brief Configuration for the internal DAC. + */ +typedef struct _cmp_dac_config +{ + cmp_reference_voltage_source_t referenceVoltageSource; /*!< Supply voltage reference source. */ + uint8_t DACValue; /*!< Value for DAC Output Voltage. Available range is 0-63.*/ +} cmp_dac_config_t; + +#if defined(__cplusplus) +extern "C" { +#endif + +/******************************************************************************* + * API + ******************************************************************************/ + +/*! + * @name Initialization + * @{ + */ + +/*! + * @brief Initializes the CMP. + * + * This function initializes the CMP module. The operations included are: + * - Enabling the clock for CMP module. + * - Configuring the comparator. + * - Enabling the CMP module. + * Note: For some devices, multiple CMP instance share the same clock gate. In this case, to enable the clock for + * any instance enables all the CMPs. Check the chip reference manual for the clock assignment of the CMP. + * + * @param base CMP peripheral base address. + * @param config Pointer to configuration structure. + */ +void CMP_Init(CMP_Type *base, const cmp_config_t *config); + +/*! + * @brief De-initializes the CMP module. + * + * This function de-initializes the CMP module. The operations included are: + * - Disabling the CMP module. + * - Disabling the clock for CMP module. + * + * This function disables the clock for the CMP. + * Note: For some devices, multiple CMP instance shares the same clock gate. In this case, before disabling the + * clock for the CMP, ensure that all the CMP instances are not used. + * + * @param base CMP peripheral base address. + */ +void CMP_Deinit(CMP_Type *base); + +/*! + * @brief Enables/disables the CMP module. + * + * @param base CMP peripheral base address. + * @param enable Enable the module or not. + */ +static inline void CMP_Enable(CMP_Type *base, bool enable) +{ + if (enable) + { + base->CR1 |= CMP_CR1_EN_MASK; + } + else + { + base->CR1 &= ~CMP_CR1_EN_MASK; + } +} + +/*! +* @brief Initializes the CMP user configuration structure. +* +* This function initializes the user configuration structure to these default values: +* @code +* config->enableCmp = true; +* config->hysteresisMode = kCMP_HysteresisLevel0; +* config->enableHighSpeed = false; +* config->enableInvertOutput = false; +* config->useUnfilteredOutput = false; +* config->enablePinOut = false; +* config->enableTriggerMode = false; +* @endcode +* @param config Pointer to the configuration structure. +*/ +void CMP_GetDefaultConfig(cmp_config_t *config); + +/*! + * @brief Sets the input channels for the comparator. + * + * This function sets the input channels for the comparator. + * Note that two input channels cannot be set as same in the application. When the user selects the same input + * from the analog mux to the positive and negative port, the comparator is disabled automatically. + * + * @param base CMP peripheral base address. + * @param positiveChannel Positive side input channel number. Available range is 0-7. + * @param negativeChannel Negative side input channel number. Available range is 0-7. + */ +void CMP_SetInputChannels(CMP_Type *base, uint8_t positiveChannel, uint8_t negativeChannel); + +/* @} */ + +/*! + * @name Advanced Features + * @{ + */ + +#if defined(FSL_FEATURE_CMP_HAS_DMA) && FSL_FEATURE_CMP_HAS_DMA +/*! + * @brief Enables/disables the DMA request for rising/falling events. + * + * This function enables/disables the DMA request for rising/falling events. Either event triggers the generation of + * the DMA + * request from CMP if the DMA feature is enabled. Both events are ignored for generating the DMA request from the CMP + * if the + * DMA is disabled. + * + * @param base CMP peripheral base address. + * @param enable Enable the feature or not. + */ +void CMP_EnableDMA(CMP_Type *base, bool enable); +#endif /* FSL_FEATURE_CMP_HAS_DMA */ + +#if defined(FSL_FEATURE_CMP_HAS_WINDOW_MODE) && FSL_FEATURE_CMP_HAS_WINDOW_MODE +/*! + * @brief Enables/disables the window mode. + * + * @param base CMP peripheral base address. + * @param enable Enable the feature or not. + */ +static inline void CMP_EnableWindowMode(CMP_Type *base, bool enable) +{ + if (enable) + { + base->CR1 |= CMP_CR1_WE_MASK; + } + else + { + base->CR1 &= ~CMP_CR1_WE_MASK; + } +} +#endif /* FSL_FEATURE_CMP_HAS_WINDOW_MODE */ + +#if defined(FSL_FEATURE_CMP_HAS_PASS_THROUGH_MODE) && FSL_FEATURE_CMP_HAS_PASS_THROUGH_MODE +/*! + * @brief Enables/disables the pass through mode. + * + * @param base CMP peripheral base address. + * @param enable Enable the feature or not. + */ +static inline void CMP_EnablePassThroughMode(CMP_Type *base, bool enable) +{ + if (enable) + { + base->MUXCR |= CMP_MUXCR_PSTM_MASK; + } + else + { + base->MUXCR &= ~CMP_MUXCR_PSTM_MASK; + } +} +#endif /* FSL_FEATURE_CMP_HAS_PASS_THROUGH_MODE */ + +/*! + * @brief Configures the filter. + * + * @param base CMP peripheral base address. + * @param config Pointer to configuration structure. + */ +void CMP_SetFilterConfig(CMP_Type *base, const cmp_filter_config_t *config); + +/*! + * @brief Configures the internal DAC. + * + * @param base CMP peripheral base address. + * @param config Pointer to configuration structure. "NULL" is for disabling the feature. + */ +void CMP_SetDACConfig(CMP_Type *base, const cmp_dac_config_t *config); + +/*! + * @brief Enables the interrupts. + * + * @param base CMP peripheral base address. + * @param mask Mask value for interrupts. See "_cmp_interrupt_enable". + */ +void CMP_EnableInterrupts(CMP_Type *base, uint32_t mask); + +/*! + * @brief Disables the interrupts. + * + * @param base CMP peripheral base address. + * @param mask Mask value for interrupts. See "_cmp_interrupt_enable". + */ +void CMP_DisableInterrupts(CMP_Type *base, uint32_t mask); + +/* @} */ + +/*! + * @name Results + * @{ + */ + +/*! + * @brief Gets the status flags. + * + * @param base CMP peripheral base address. + * + * @return Mask value for the asserted flags. See "_cmp_status_flags". + */ +uint32_t CMP_GetStatusFlags(CMP_Type *base); + +/*! + * @brief Clears the status flags. + * + * @param base CMP peripheral base address. + * @param mask Mask value for the flags. See "_cmp_status_flags". + */ +void CMP_ClearStatusFlags(CMP_Type *base, uint32_t mask); + +/* @} */ +#if defined(__cplusplus) +} +#endif +/*! + * @} + */ +#endif /* _FSL_CMP_H_ */ diff --git a/drivers/fsl_cmt.c b/drivers/fsl_cmt.c new file mode 100644 index 0000000..43b2d3c --- /dev/null +++ b/drivers/fsl_cmt.c @@ -0,0 +1,260 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_cmt.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/* The standard intermediate frequency (IF). */ +#define CMT_INTERMEDIATEFREQUENCY_8MHZ (8000000U) +/* CMT data modulate mask. */ +#define CMT_MODULATE_COUNT_WIDTH (8U) +/* CMT diver 1. */ +#define CMT_CMTDIV_ONE (1) +/* CMT diver 2. */ +#define CMT_CMTDIV_TWO (2) +/* CMT diver 4. */ +#define CMT_CMTDIV_FOUR (4) +/* CMT diver 8. */ +#define CMT_CMTDIV_EIGHT (8) +/* CMT mode bit mask. */ +#define CMT_MODE_BIT_MASK (CMT_MSC_MCGEN_MASK | CMT_MSC_FSK_MASK | CMT_MSC_BASE_MASK) + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/*! + * @brief Get instance number for CMT module. + * + * @param base CMT peripheral base address. + */ +static uint32_t CMT_GetInstance(CMT_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ + +/*! @brief Pointers to cmt clocks for each instance. */ +static const clock_ip_name_t s_cmtClock[FSL_FEATURE_SOC_CMT_COUNT] = CMT_CLOCKS; + +/*! @brief Pointers to cmt bases for each instance. */ +static CMT_Type *const s_cmtBases[] = CMT_BASE_PTRS; + +/*! @brief Pointers to cmt IRQ number for each instance. */ +static const IRQn_Type s_cmtIrqs[] = CMT_IRQS; + +/******************************************************************************* + * Codes + ******************************************************************************/ + +static uint32_t CMT_GetInstance(CMT_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_CMT_COUNT; instance++) + { + if (s_cmtBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_CMT_COUNT); + + return instance; +} + +void CMT_GetDefaultConfig(cmt_config_t *config) +{ + assert(config); + + /* Default infrared output is enabled and set with high active, the divider is set to 1. */ + config->isInterruptEnabled = false; + config->isIroEnabled = true; + config->iroPolarity = kCMT_IROActiveHigh; + config->divider = kCMT_SecondClkDiv1; +} + +void CMT_Init(CMT_Type *base, const cmt_config_t *config, uint32_t busClock_Hz) +{ + assert(config); + assert(busClock_Hz >= CMT_INTERMEDIATEFREQUENCY_8MHZ); + + uint8_t divider; + + /* Ungate clock. */ + CLOCK_EnableClock(s_cmtClock[CMT_GetInstance(base)]); + + /* Sets clock divider. The divider set in pps should be set + to make sycClock_Hz/divder = 8MHz */ + base->PPS = CMT_PPS_PPSDIV(busClock_Hz / CMT_INTERMEDIATEFREQUENCY_8MHZ - 1); + divider = base->MSC; + divider &= ~CMT_MSC_CMTDIV_MASK; + divider |= CMT_MSC_CMTDIV(config->divider); + base->MSC = divider; + + /* Set the IRO signal. */ + base->OC = CMT_OC_CMTPOL(config->iroPolarity) | CMT_OC_IROPEN(config->isIroEnabled); + + /* Set interrupt. */ + if (config->isInterruptEnabled) + { + CMT_EnableInterrupts(base, kCMT_EndOfCycleInterruptEnable); + EnableIRQ(s_cmtIrqs[CMT_GetInstance(base)]); + } +} + +void CMT_Deinit(CMT_Type *base) +{ + /*Disable the CMT modulator. */ + base->MSC = 0; + + /* Disable the interrupt. */ + CMT_DisableInterrupts(base, kCMT_EndOfCycleInterruptEnable); + DisableIRQ(s_cmtIrqs[CMT_GetInstance(base)]); + + /* Gate the clock. */ + CLOCK_DisableClock(s_cmtClock[CMT_GetInstance(base)]); +} + +void CMT_SetMode(CMT_Type *base, cmt_mode_t mode, cmt_modulate_config_t *modulateConfig) +{ + uint8_t mscReg; + + /* Set the mode. */ + if (mode != kCMT_DirectIROCtl) + { + assert(modulateConfig); + + /* Set carrier generator. */ + CMT_SetCarrirGenerateCountOne(base, modulateConfig->highCount1, modulateConfig->lowCount1); + if (mode == kCMT_FSKMode) + { + CMT_SetCarrirGenerateCountTwo(base, modulateConfig->highCount2, modulateConfig->lowCount2); + } + + /* Set carrier modulator. */ + CMT_SetModulateMarkSpace(base, modulateConfig->markCount, modulateConfig->spaceCount); + } + + /* Set the CMT mode. */ + mscReg = base->MSC; + mscReg &= ~CMT_MODE_BIT_MASK; + mscReg |= mode; + + base->MSC = mscReg; +} + +cmt_mode_t CMT_GetMode(CMT_Type *base) +{ + uint8_t mode = base->MSC; + + if (!(mode & CMT_MSC_MCGEN_MASK)) + { /* Carrier modulator disabled and the IRO signal is in direct software control. */ + return kCMT_DirectIROCtl; + } + else + { + /* Carrier modulator is enabled. */ + if (mode & CMT_MSC_BASE_MASK) + { + /* Base band mode. */ + return kCMT_BasebandMode; + } + else if (mode & CMT_MSC_FSK_MASK) + { + /* FSK mode. */ + return kCMT_FSKMode; + } + else + { + /* Time mode. */ + return kCMT_TimeMode; + } + } +} + +uint32_t CMT_GetCMTFrequency(CMT_Type *base, uint32_t busClock_Hz) +{ + uint32_t frequency; + uint32_t divider; + + /* Get intermediate frequency. */ + frequency = busClock_Hz / ((base->PPS & CMT_PPS_PPSDIV_MASK) + 1); + + /* Get the second divider. */ + divider = ((base->MSC & CMT_MSC_CMTDIV_MASK) >> CMT_MSC_CMTDIV_SHIFT); + /* Get CMT frequency. */ + switch ((cmt_second_clkdiv_t)divider) + { + case kCMT_SecondClkDiv1: + frequency = frequency / CMT_CMTDIV_ONE; + break; + case kCMT_SecondClkDiv2: + frequency = frequency / CMT_CMTDIV_TWO; + break; + case kCMT_SecondClkDiv4: + frequency = frequency / CMT_CMTDIV_FOUR; + break; + case kCMT_SecondClkDiv8: + frequency = frequency / CMT_CMTDIV_EIGHT; + break; + default: + frequency = frequency / CMT_CMTDIV_ONE; + break; + } + + return frequency; +} + +void CMT_SetModulateMarkSpace(CMT_Type *base, uint32_t markCount, uint32_t spaceCount) +{ + /* Set modulate mark. */ + base->CMD1 = (markCount >> CMT_MODULATE_COUNT_WIDTH) & CMT_CMD1_MB_MASK; + base->CMD2 = (markCount & CMT_CMD2_MB_MASK); + /* Set modulate space. */ + base->CMD3 = (spaceCount >> CMT_MODULATE_COUNT_WIDTH) & CMT_CMD3_SB_MASK; + base->CMD4 = spaceCount & CMT_CMD4_SB_MASK; +} + +void CMT_SetIroState(CMT_Type *base, cmt_infrared_output_state_t state) +{ + uint8_t ocReg = base->OC; + + ocReg &= ~CMT_OC_IROL_MASK; + ocReg |= CMT_OC_IROL(state); + + /* Set the infrared output signal control. */ + base->OC = ocReg; +} diff --git a/drivers/fsl_cmt.h b/drivers/fsl_cmt.h new file mode 100644 index 0000000..0d57583 --- /dev/null +++ b/drivers/fsl_cmt.h @@ -0,0 +1,401 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_CMT_H_ +#define _FSL_CMT_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup cmt + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief CMT driver version 2.0.1. */ +#define FSL_CMT_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) +/*@}*/ + +/*! + * @brief The modes of CMT. + */ +typedef enum _cmt_mode +{ + kCMT_DirectIROCtl = 0x00U, /*!< Carrier modulator is disabled and the IRO signal is directly in software control */ + kCMT_TimeMode = 0x01U, /*!< Carrier modulator is enabled in time mode. */ + kCMT_FSKMode = 0x05U, /*!< Carrier modulator is enabled in FSK mode. */ + kCMT_BasebandMode = 0x09U /*!< Carrier modulator is enabled in baseband mode. */ +} cmt_mode_t; + +/*! + * @brief The CMT clock divide primary prescaler. + * The primary clock divider is used to divider the bus clock to + * get the intermediate frequency to approximately equal to 8 MHZ. + * When the bus clock is 8 MHZ, set primary prescaler to "kCMT_PrimaryClkDiv1". + */ +typedef enum _cmt_primary_clkdiv +{ + kCMT_PrimaryClkDiv1 = 0U, /*!< The intermediate frequency is the bus clock divided by 1. */ + kCMT_PrimaryClkDiv2 = 1U, /*!< The intermediate frequency is the bus clock divided by 2. */ + kCMT_PrimaryClkDiv3 = 2U, /*!< The intermediate frequency is the bus clock divided by 3. */ + kCMT_PrimaryClkDiv4 = 3U, /*!< The intermediate frequency is the bus clock divided by 4. */ + kCMT_PrimaryClkDiv5 = 4U, /*!< The intermediate frequency is the bus clock divided by 5. */ + kCMT_PrimaryClkDiv6 = 5U, /*!< The intermediate frequency is the bus clock divided by 6. */ + kCMT_PrimaryClkDiv7 = 6U, /*!< The intermediate frequency is the bus clock divided by 7. */ + kCMT_PrimaryClkDiv8 = 7U, /*!< The intermediate frequency is the bus clock divided by 8. */ + kCMT_PrimaryClkDiv9 = 8U, /*!< The intermediate frequency is the bus clock divided by 9. */ + kCMT_PrimaryClkDiv10 = 9U, /*!< The intermediate frequency is the bus clock divided by 10. */ + kCMT_PrimaryClkDiv11 = 10U, /*!< The intermediate frequency is the bus clock divided by 11. */ + kCMT_PrimaryClkDiv12 = 11U, /*!< The intermediate frequency is the bus clock divided by 12. */ + kCMT_PrimaryClkDiv13 = 12U, /*!< The intermediate frequency is the bus clock divided by 13. */ + kCMT_PrimaryClkDiv14 = 13U, /*!< The intermediate frequency is the bus clock divided by 14. */ + kCMT_PrimaryClkDiv15 = 14U, /*!< The intermediate frequency is the bus clock divided by 15. */ + kCMT_PrimaryClkDiv16 = 15U /*!< The intermediate frequency is the bus clock divided by 16. */ +} cmt_primary_clkdiv_t; + +/*! + * @brief The CMT clock divide secondary prescaler. + * The second prescaler can be used to divide the 8 MHZ CMT clock + * by 1, 2, 4, or 8 according to the specification. + */ +typedef enum _cmt_second_clkdiv +{ + kCMT_SecondClkDiv1 = 0U, /*!< The CMT clock is the intermediate frequency frequency divided by 1. */ + kCMT_SecondClkDiv2 = 1U, /*!< The CMT clock is the intermediate frequency frequency divided by 2. */ + kCMT_SecondClkDiv4 = 2U, /*!< The CMT clock is the intermediate frequency frequency divided by 4. */ + kCMT_SecondClkDiv8 = 3U /*!< The CMT clock is the intermediate frequency frequency divided by 8. */ +} cmt_second_clkdiv_t; + +/*! + * @brief The CMT infrared output polarity. + */ +typedef enum _cmt_infrared_output_polarity +{ + kCMT_IROActiveLow = 0U, /*!< The CMT infrared output signal polarity is active-low. */ + kCMT_IROActiveHigh = 1U /*!< The CMT infrared output signal polarity is active-high. */ +} cmt_infrared_output_polarity_t; + +/*! + * @brief The CMT infrared output signal state control. + */ +typedef enum _cmt_infrared_output_state +{ + kCMT_IROCtlLow = 0U, /*!< The CMT Infrared output signal state is controlled to low. */ + kCMT_IROCtlHigh = 1U /*!< The CMT Infrared output signal state is controlled to high. */ +} cmt_infrared_output_state_t; + +/*! + * @brief CMT interrupt configuration structure, default settings all disabled. + * + * This structure contains the settings for all of the CMT interrupt configurations. + */ +enum _cmt_interrupt_enable +{ + kCMT_EndOfCycleInterruptEnable = CMT_MSC_EOCIE_MASK, /*!< CMT end of cycle interrupt. */ +}; + +/*! + * @brief CMT carrier generator and modulator configuration structure + * + */ +typedef struct _cmt_modulate_config +{ + uint8_t highCount1; /*!< The high time for carrier generator first register. */ + uint8_t lowCount1; /*!< The low time for carrier generator first register. */ + uint8_t highCount2; /*!< The high time for carrier generator second register for FSK mode. */ + uint8_t lowCount2; /*!< The low time for carrier generator second register for FSK mode. */ + uint16_t markCount; /*!< The mark time for the modulator gate. */ + uint16_t spaceCount; /*!< The space time for the modulator gate. */ +} cmt_modulate_config_t; + +/*! @brief CMT basic configuration structure. */ +typedef struct _cmt_config +{ + bool isInterruptEnabled; /*!< Timer interrupt 0-disable, 1-enable. */ + bool isIroEnabled; /*!< The IRO output 0-disabled, 1-enabled. */ + cmt_infrared_output_polarity_t iroPolarity; /*!< The IRO polarity. */ + cmt_second_clkdiv_t divider; /*!< The CMT clock divide prescaler. */ +} cmt_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name Initialization and deinitialization + * @{ + */ + +/*! + * @brief Gets the CMT default configuration structure. The purpose + * of this API is to get the default configuration structure for the CMT_Init(). + * Use the initialized structure unchanged in CMT_Init(), or modify + * some fields of the structure before calling the CMT_Init(). + * + * @param config The CMT configuration structure pointer. + */ +void CMT_GetDefaultConfig(cmt_config_t *config); + +/*! + * @brief Initializes the CMT module. + * + * This function ungates the module clock and sets the CMT internal clock, + * interrupt, and infrared output signal for the CMT module. + * + * @param base CMT peripheral base address. + * @param config The CMT basic configuration structure. + * @param busClock_Hz The CMT module input clock - bus clock frequency. + */ +void CMT_Init(CMT_Type *base, const cmt_config_t *config, uint32_t busClock_Hz); + +/*! + * @brief Disables the CMT module and gate control. + * + * This function disables CMT modulator, interrupts, and gates the + * CMT clock control. CMT_Init must be called to use the CMT again. + * + * @param base CMT peripheral base address. + */ +void CMT_Deinit(CMT_Type *base); + +/*! @}*/ + +/*! + * @name Basic Control Operations + * @{ + */ + +/*! + * @brief Selects the mode for CMT. + * + * @param base CMT peripheral base address. + * @param mode The CMT feature mode enumeration. See "cmt_mode_t". + * @param modulateConfig The carrier generation and modulator configuration. + */ +void CMT_SetMode(CMT_Type *base, cmt_mode_t mode, cmt_modulate_config_t *modulateConfig); + +/*! + * @brief Gets the mode of the CMT module. + * + * @param base CMT peripheral base address. + * @return The CMT mode. + * kCMT_DirectIROCtl Carrier modulator is disabled, the IRO signal is directly in software control. + * kCMT_TimeMode Carrier modulator is enabled in time mode. + * kCMT_FSKMode Carrier modulator is enabled in FSK mode. + * kCMT_BasebandMode Carrier modulator is enabled in baseband mode. + */ +cmt_mode_t CMT_GetMode(CMT_Type *base); + +/*! + * @brief Gets the actual CMT clock frequency. + * + * @param base CMT peripheral base address. + * @param busClock_Hz CMT module input clock - bus clock frequency. + * @return The CMT clock frequency. + */ +uint32_t CMT_GetCMTFrequency(CMT_Type *base, uint32_t busClock_Hz); + +/*! + * @brief Sets the primary data set for the CMT carrier generator counter. + * + * This function sets the high time and low time of the primary data set for the + * CMT carrier generator counter to control the period and the duty cycle of the + * output carrier signal. + * If the CMT clock period is Tcmt, The period of the carrier generator signal equals + * (highCount + lowCount) * Tcmt. The duty cycle equals highCount / (highCount + lowCount). + * + * @param base CMT peripheral base address. + * @param highCount The number of CMT clocks for carrier generator signal high time, + * integer in the range of 1 ~ 0xFF. + * @param lowCount The number of CMT clocks for carrier generator signal low time, + * integer in the range of 1 ~ 0xFF. + */ +static inline void CMT_SetCarrirGenerateCountOne(CMT_Type *base, uint32_t highCount, uint32_t lowCount) +{ + assert(highCount <= CMT_CGH1_PH_MASK); + assert(highCount); + assert(lowCount <= CMT_CGL1_PL_MASK); + assert(lowCount); + + base->CGH1 = highCount; + base->CGL1 = lowCount; +} + +/*! + * @brief Sets the secondary data set for the CMT carrier generator counter. + * + * This function is used for FSK mode setting the high time and low time of the secondary + * data set CMT carrier generator counter to control the period and the duty cycle + * of the output carrier signal. + * If the CMT clock period is Tcmt, The period of the carrier generator signal equals + * (highCount + lowCount) * Tcmt. The duty cycle equals highCount / (highCount + lowCount). + * + * @param base CMT peripheral base address. + * @param highCount The number of CMT clocks for carrier generator signal high time, + * integer in the range of 1 ~ 0xFF. + * @param lowCount The number of CMT clocks for carrier generator signal low time, + * integer in the range of 1 ~ 0xFF. + */ +static inline void CMT_SetCarrirGenerateCountTwo(CMT_Type *base, uint32_t highCount, uint32_t lowCount) +{ + assert(highCount <= CMT_CGH2_SH_MASK); + assert(highCount); + assert(lowCount <= CMT_CGL2_SL_MASK); + assert(lowCount); + + base->CGH2 = highCount; + base->CGL2 = lowCount; +} + +/*! + * @brief Sets the modulation mark and space time period for the CMT modulator. + * + * This function sets the mark time period of the CMT modulator counter + * to control the mark time of the output modulated signal from the carrier generator output signal. + * If the CMT clock frequency is Fcmt and the carrier out signal frequency is fcg: + * - In Time and Baseband mode: The mark period of the generated signal equals (markCount + 1) / (Fcmt/8). + * The space period of the generated signal equals spaceCount / (Fcmt/8). + * - In FSK mode: The mark period of the generated signal equals (markCount + 1)/fcg. + * The space period of the generated signal equals spaceCount / fcg. + * + * @param base Base address for current CMT instance. + * @param markCount The number of clock period for CMT modulator signal mark period, + * in the range of 0 ~ 0xFFFF. + * @param spaceCount The number of clock period for CMT modulator signal space period, + * in the range of the 0 ~ 0xFFFF. + */ +void CMT_SetModulateMarkSpace(CMT_Type *base, uint32_t markCount, uint32_t spaceCount); + +/*! + * @brief Enables or disables the extended space operation. + * + * This function is used to make the space period longer + * for time, baseband, and FSK modes. + * + * @param base CMT peripheral base address. + * @param enable True enable the extended space, false disable the extended space. + */ +static inline void CMT_EnableExtendedSpace(CMT_Type *base, bool enable) +{ + if (enable) + { + base->MSC |= CMT_MSC_EXSPC_MASK; + } + else + { + base->MSC &= ~CMT_MSC_EXSPC_MASK; + } +} + +/*! + * @brief Sets IRO - infrared output signal state. + * + * Changes the states of the IRO signal when the kCMT_DirectIROMode mode is set + * and the IRO signal is enabled. + * + * @param base CMT peripheral base address. + * @param state The control of the IRO signal. See "cmt_infrared_output_state_t" + */ +void CMT_SetIroState(CMT_Type *base, cmt_infrared_output_state_t state); + +/*! + * @brief Enables the CMT interrupt. + * + * This function enables the CMT interrupts according to the provided maskIf enabled. + * The CMT only has the end of the cycle interrupt - an interrupt occurs at the end + * of the modulator cycle. This interrupt provides a means for the user + * to reload the new mark/space values into the CMT modulator data registers + * and verify the modulator mark and space. + * For example, to enable the end of cycle, do the following: + * @code + * CMT_EnableInterrupts(CMT, kCMT_EndOfCycleInterruptEnable); + * @endcode + * @param base CMT peripheral base address. + * @param mask The interrupts to enable. Logical OR of @ref _cmt_interrupt_enable. + */ +static inline void CMT_EnableInterrupts(CMT_Type *base, uint32_t mask) +{ + base->MSC |= mask; +} + +/*! + * @brief Disables the CMT interrupt. + * + * This function disables the CMT interrupts according to the provided maskIf enabled. + * The CMT only has the end of the cycle interrupt. + * For example, to disable the end of cycle, do the following: + * @code + * CMT_DisableInterrupts(CMT, kCMT_EndOfCycleInterruptEnable); + * @endcode + * + * @param base CMT peripheral base address. + * @param mask The interrupts to enable. Logical OR of @ref _cmt_interrupt_enable. + */ +static inline void CMT_DisableInterrupts(CMT_Type *base, uint32_t mask) +{ + base->MSC &= ~mask; +} + +/*! + * @brief Gets the end of the cycle status flag. + * + * The flag is set: + * - When the modulator is not currently active and carrier and modulator + * are set to start the initial CMT transmission. + * - At the end of each modulation cycle when the counter is reloaded and + * the carrier and modulator are enabled. + * @param base CMT peripheral base address. + * @return Current status of the end of cycle status flag + * @arg non-zero: End-of-cycle has occurred. + * @arg zero: End-of-cycle has not yet occurred since the flag last cleared. + */ +static inline uint32_t CMT_GetStatusFlags(CMT_Type *base) +{ + return base->MSC & CMT_MSC_EOCF_MASK; +} + +/*! @}*/ + +#if defined(__cplusplus) +} +#endif + +/*! @}*/ + +#endif /* _FSL_CMT_H_*/ diff --git a/drivers/fsl_common.c b/drivers/fsl_common.c new file mode 100644 index 0000000..de67800 --- /dev/null +++ b/drivers/fsl_common.c @@ -0,0 +1,95 @@ +/* +* Copyright (c) 2015, Freescale Semiconductor, Inc. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without modification, +* are permitted provided that the following conditions are met: +* +* o Redistributions of source code must retain the above copyright notice, this list +* of conditions and the following disclaimer. +* +* o Redistributions in binary form must reproduce the above copyright notice, this +* list of conditions and the following disclaimer in the documentation and/or +* other materials provided with the distribution. +* +* o Neither the name of Freescale Semiconductor, Inc. nor the names of its +* contributors may be used to endorse or promote products derived from this +* software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR +* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "fsl_common.h" +#include "fsl_debug_console.h" + +#ifndef NDEBUG +#if (defined(__CC_ARM)) || (defined(__ICCARM__)) +void __aeabi_assert(const char *failedExpr, const char *file, int line) +{ + PRINTF("ASSERT ERROR \" %s \": file \"%s\" Line \"%d\" \n", failedExpr, file, line); + for (;;) + { + __asm("bkpt #0"); + } +} +#elif(defined(__GNUC__)) +void __assert_func(const char *file, int line, const char *func, const char *failedExpr) +{ + PRINTF("ASSERT ERROR \" %s \": file \"%s\" Line \"%d\" function name \"%s\" \n", failedExpr, file, line, func); + for (;;) + { + __asm("bkpt #0"); + } +} +#endif /* (defined(__CC_ARM)) || (defined (__ICCARM__)) */ +#endif /* NDEBUG */ + +void InstallIRQHandler(IRQn_Type irq, uint32_t irqHandler) +{ +/* Addresses for VECTOR_TABLE and VECTOR_RAM come from the linker file */ +#if defined(__CC_ARM) + extern uint32_t Image$$VECTOR_ROM$$Base[]; + extern uint32_t Image$$VECTOR_RAM$$Base[]; + extern uint32_t Image$$RW_m_data$$Base[]; + +#define __VECTOR_TABLE Image$$VECTOR_ROM$$Base +#define __VECTOR_RAM Image$$VECTOR_RAM$$Base +#define __RAM_VECTOR_TABLE_SIZE (((uint32_t)Image$$RW_m_data$$Base - (uint32_t)Image$$VECTOR_RAM$$Base)) +#elif defined(__ICCARM__) + extern uint32_t __RAM_VECTOR_TABLE_SIZE[]; + extern uint32_t __VECTOR_TABLE[]; + extern uint32_t __VECTOR_RAM[]; +#elif defined(__GNUC__) + extern uint32_t __VECTOR_TABLE[]; + extern uint32_t __VECTOR_RAM[]; + extern uint32_t __RAM_VECTOR_TABLE_SIZE_BYTES[]; + uint32_t __RAM_VECTOR_TABLE_SIZE = (uint32_t)(__RAM_VECTOR_TABLE_SIZE_BYTES); +#endif /* defined(__CC_ARM) */ + uint32_t n; + + __disable_irq(); + if (SCB->VTOR != (uint32_t)__VECTOR_RAM) + { + /* Copy the vector table from ROM to RAM */ + for (n = 0; n < ((uint32_t)__RAM_VECTOR_TABLE_SIZE) / sizeof(uint32_t); n++) + { + __VECTOR_RAM[n] = __VECTOR_TABLE[n]; + } + /* Point the VTOR to the position of vector table */ + SCB->VTOR = (uint32_t)__VECTOR_RAM; + } + + /* make sure the __VECTOR_RAM is noncachable */ + __VECTOR_RAM[irq + 16] = irqHandler; + + __enable_irq(); +} diff --git a/drivers/fsl_common.h b/drivers/fsl_common.h new file mode 100644 index 0000000..a843078 --- /dev/null +++ b/drivers/fsl_common.h @@ -0,0 +1,254 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_COMMON_H_ +#define _FSL_COMMON_H_ + +#include <assert.h> +#include <stdbool.h> +#include <stdint.h> +#include <string.h> +#include "fsl_device_registers.h" + +/*! + * @addtogroup ksdk_common + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @brief Construct a status code value from a group and code number. */ +#define MAKE_STATUS(group, code) ((((group)*100) + (code))) + +/*! @brief Construct the version number for drivers. */ +#define MAKE_VERSION(major, minor, bugfix) (((major) << 16) | ((minor) << 8) | (bugfix)) + +/* Debug console type definition. */ +#define DEBUG_CONSOLE_DEVICE_TYPE_NONE 0U /*!< No debug console. */ +#define DEBUG_CONSOLE_DEVICE_TYPE_UART 1U /*!< Debug console base on UART. */ +#define DEBUG_CONSOLE_DEVICE_TYPE_LPUART 2U /*!< Debug console base on LPUART. */ +#define DEBUG_CONSOLE_DEVICE_TYPE_LPSCI 3U /*!< Debug console base on LPSCI. */ +#define DEBUG_CONSOLE_DEVICE_TYPE_USBCDC 4U /*!< Debug console base on USBCDC. */ + +/*! @brief Status group numbers. */ +enum _status_groups +{ + kStatusGroup_Generic = 0, /*!< Group number for generic status codes. */ + kStatusGroup_FLASH = 1, /*!< Group number for FLASH status codes. */ + kStatusGroup_LPSPI = 4, /*!< Group number for LPSPI status codes. */ + kStatusGroup_FLEXIO_SPI = 5, /*!< Group number for FLEXIO SPI status codes. */ + kStatusGroup_DSPI = 6, /*!< Group number for DSPI status codes. */ + kStatusGroup_FLEXIO_UART = 7, /*!< Group number for FLEXIO UART status codes. */ + kStatusGroup_FLEXIO_I2C = 8, /*!< Group number for FLEXIO I2C status codes. */ + kStatusGroup_LPI2C = 9, /*!< Group number for LPI2C status codes. */ + kStatusGroup_UART = 10, /*!< Group number for UART status codes. */ + kStatusGroup_I2C = 11, /*!< Group number for UART status codes. */ + kStatusGroup_LPSCI = 12, /*!< Group number for LPSCI status codes. */ + kStatusGroup_LPUART = 13, /*!< Group number for LPUART status codes. */ + kStatusGroup_SPI = 14, /*!< Group number for SPI status code.*/ + kStatusGroup_XRDC = 15, /*!< Group number for XRDC status code.*/ + kStatusGroup_SEMA42 = 16, /*!< Group number for SEMA42 status code.*/ + kStatusGroup_SDHC = 17, /*!< Group number for SDHC status code */ + kStatusGroup_SDMMC = 18, /*!< Group number for SDMMC status code */ + kStatusGroup_SAI = 19, /*!< Group number for SAI status code */ + kStatusGroup_MCG = 20, /*!< Group number for MCG status codes. */ + kStatusGroup_SCG = 21, /*!< Group number for SCG status codes. */ + kStatusGroup_SDSPI = 22, /*!< Group number for SDSPI status codes. */ + kStatusGroup_FLEXIO_I2S = 23, /*!< Group number for FLEXIO I2S status codes */ + kStatusGroup_SDRAMC = 35, /*!< Group number for SDRAMC status codes. */ + kStatusGroup_POWER = 39, /*!< Group number for POWER status codes. */ + kStatusGroup_ENET = 40, /*!< Group number for ENET status codes. */ + kStatusGroup_PHY = 41, /*!< Group number for PHY status codes. */ + kStatusGroup_TRGMUX = 42, /*!< Group number for TRGMUX status codes. */ + kStatusGroup_SMARTCARD = 43, /*!< Group number for SMARTCARD status codes. */ + kStatusGroup_LMEM = 44, /*!< Group number for LMEM status codes. */ + kStatusGroup_QSPI = 45, /*!< Group number for QSPI status codes. */ + kStatusGroup_DMA = 50, /*!< Group number for DMA status codes. */ + kStatusGroup_EDMA = 51, /*!< Group number for EDMA status codes. */ + kStatusGroup_DMAMGR = 52, /*!< Group number for DMAMGR status codes. */ + kStatusGroup_FLEXCAN = 53, /*!< Group number for FlexCAN status codes. */ + kStatusGroup_LTC = 54, /*!< Group number for LTC status codes. */ + kStatusGroup_FLEXIO_CAMERA = 55, /*!< Group number for FLEXIO CAMERA status codes. */ + kStatusGroup_NOTIFIER = 98, /*!< Group number for NOTIFIER status codes. */ + kStatusGroup_DebugConsole = 99, /*!< Group number for debug console status codes. */ + kStatusGroup_ApplicationRangeStart = 100, /*!< Starting number for application groups. */ +}; + +/*! @brief Generic status return codes. */ +enum _generic_status +{ + kStatus_Success = MAKE_STATUS(kStatusGroup_Generic, 0), + kStatus_Fail = MAKE_STATUS(kStatusGroup_Generic, 1), + kStatus_ReadOnly = MAKE_STATUS(kStatusGroup_Generic, 2), + kStatus_OutOfRange = MAKE_STATUS(kStatusGroup_Generic, 3), + kStatus_InvalidArgument = MAKE_STATUS(kStatusGroup_Generic, 4), + kStatus_Timeout = MAKE_STATUS(kStatusGroup_Generic, 5), + kStatus_NoTransferInProgress = MAKE_STATUS(kStatusGroup_Generic, 6), +}; + +/*! @brief Type used for all status and error return values. */ +typedef int32_t status_t; + +/* + * The fsl_clock.h is included here because it needs MAKE_VERSION/MAKE_STATUS/status_t + * defined in previous of this file. + */ +#include "fsl_clock.h" + +/*! @name Min/max macros */ +/* @{ */ +#if !defined(MIN) +#define MIN(a, b) ((a) < (b) ? (a) : (b)) +#endif + +#if !defined(MAX) +#define MAX(a, b) ((a) > (b) ? (a) : (b)) +#endif +/* @} */ + +/*! @brief Computes the number of elements in an array. */ +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) + +/*! @name UINT16_MAX/UINT32_MAX value */ +/* @{ */ +#if !defined(UINT16_MAX) +#define UINT16_MAX ((uint16_t)-1) +#endif + +#if !defined(UINT32_MAX) +#define UINT32_MAX ((uint32_t)-1) +#endif +/* @} */ + +/*! @name Timer utilities */ +/* @{ */ +/*! Macro to convert a microsecond period to raw count value */ +#define USEC_TO_COUNT(us, clockFreqInHz) (uint64_t)((uint64_t)us * clockFreqInHz / 1000000U) +/*! Macro to convert a raw count value to microsecond */ +#define COUNT_TO_USEC(count, clockFreqInHz) (uint64_t)((uint64_t)count * 1000000U / clockFreqInHz) + +/*! Macro to convert a millisecond period to raw count value */ +#define MSEC_TO_COUNT(ms, clockFreqInHz) (uint64_t)((uint64_t)ms * clockFreqInHz / 1000U) +/*! Macro to convert a raw count value to millisecond */ +#define COUNT_TO_MSEC(count, clockFreqInHz) (uint64_t)((uint64_t)count * 1000U / clockFreqInHz) +/* @} */ + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @brief Enable specific interrupt. + * + * Enable the interrupt not routed from intmux. + * + * @param interrupt The IRQ number. + */ +static inline void EnableIRQ(IRQn_Type interrupt) +{ +#if defined(FSL_FEATURE_SOC_INTMUX_COUNT) && (FSL_FEATURE_SOC_INTMUX_COUNT > 0) + if (interrupt < FSL_FEATURE_INTMUX_IRQ_START_INDEX) +#endif + { + NVIC_EnableIRQ(interrupt); + } +} + +/*! + * @brief Disable specific interrupt. + * + * Disable the interrupt not routed from intmux. + * + * @param interrupt The IRQ number. + */ +static inline void DisableIRQ(IRQn_Type interrupt) +{ +#if defined(FSL_FEATURE_SOC_INTMUX_COUNT) && (FSL_FEATURE_SOC_INTMUX_COUNT > 0) + if (interrupt < FSL_FEATURE_INTMUX_IRQ_START_INDEX) +#endif + { + NVIC_DisableIRQ(interrupt); + } +} + +/*! + * @brief Disable the global IRQ + * + * Disable the global interrupt and return the current primask register. User is required to provided the primask + * register for the EnableGlobalIRQ(). + * + * @return Current primask value. + */ +static inline uint32_t DisableGlobalIRQ(void) +{ + uint32_t regPrimask = __get_PRIMASK(); + + __disable_irq(); + + return regPrimask; +} + +/*! + * @brief Enaable the global IRQ + * + * Set the primask register with the provided primask value but not just enable the primask. The idea is for the + * convinience of integration of RTOS. some RTOS get its own management mechanism of primask. User is required to + * use the EnableGlobalIRQ() and DisableGlobalIRQ() in pair. + * + * @param primask value of primask register to be restored. The primask value is supposed to be provided by the + * DisableGlobalIRQ(). + */ +static inline void EnableGlobalIRQ(uint32_t primask) +{ + __set_PRIMASK(primask); +} + +/*! + * @brief install IRQ handler + * + * @param irq IRQ number + * @param irqHandler IRQ handler address + */ +void InstallIRQHandler(IRQn_Type irq, uint32_t irqHandler); + +#if defined(__cplusplus) +} +#endif + +/*! @} */ + +#endif /* _FSL_COMMON_H_ */ diff --git a/drivers/fsl_crc.c b/drivers/fsl_crc.c new file mode 100644 index 0000000..de86e32 --- /dev/null +++ b/drivers/fsl_crc.c @@ -0,0 +1,280 @@ +/* + * Copyright (c) 2015-2016, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#include "fsl_crc.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ +/*! @internal @brief Has data register with name CRC. */ +#if defined(FSL_FEATURE_CRC_HAS_CRC_REG) && FSL_FEATURE_CRC_HAS_CRC_REG +#define DATA CRC +#define DATALL CRCLL +#endif + +#if defined(CRC_DRIVER_USE_CRC16_CCIT_FALSE_AS_DEFAULT) && CRC_DRIVER_USE_CRC16_CCIT_FALSE_AS_DEFAULT +/* @brief Default user configuration structure for CRC-16-CCITT */ +#define CRC_DRIVER_DEFAULT_POLYNOMIAL 0x1021U +/*< CRC-16-CCIT polynomial x**16 + x**12 + x**5 + x**0 */ +#define CRC_DRIVER_DEFAULT_SEED 0xFFFFU +/*< Default initial checksum */ +#define CRC_DRIVER_DEFAULT_REFLECT_IN false +/*< Default is no transpose */ +#define CRC_DRIVER_DEFAULT_REFLECT_OUT false +/*< Default is transpose bytes */ +#define CRC_DRIVER_DEFAULT_COMPLEMENT_CHECKSUM false +/*< Default is without complement of CRC data register read data */ +#define CRC_DRIVER_DEFAULT_CRC_BITS kCrcBits16 +/*< Default is 16-bit CRC protocol */ +#define CRC_DRIVER_DEFAULT_CRC_RESULT kCrcFinalChecksum +/*< Default is resutl type is final checksum */ +#endif /* CRC_DRIVER_USE_CRC16_CCIT_FALSE_AS_DEFAULT */ + +/*! @brief CRC type of transpose of read write data */ +typedef enum _crc_transpose_type +{ + kCrcTransposeNone = 0U, /*! No transpose */ + kCrcTransposeBits = 1U, /*! Tranpose bits in bytes */ + kCrcTransposeBitsAndBytes = 2U, /*! Transpose bytes and bits in bytes */ + kCrcTransposeBytes = 3U, /*! Transpose bytes */ +} crc_transpose_type_t; + +/*! +* @brief CRC module configuration. +* +* This structure holds the configuration for the CRC module. +*/ +typedef struct _crc_module_config +{ + uint32_t polynomial; /*!< CRC Polynomial, MSBit first.@n + Example polynomial: 0x1021 = 1_0000_0010_0001 = x^12+x^5+1 */ + uint32_t seed; /*!< Starting checksum value */ + crc_transpose_type_t readTranspose; /*!< Type of transpose when reading CRC result. */ + crc_transpose_type_t writeTranspose; /*!< Type of transpose when writing CRC input data. */ + bool complementChecksum; /*!< True if the result shall be complement of the actual checksum. */ + crc_bits_t crcBits; /*!< Selects 16- or 32- bit CRC protocol. */ +} crc_module_config_t; + +/******************************************************************************* + * Code + ******************************************************************************/ + +/*! + * @brief Returns transpose type for CRC protocol reflect in parameter. + * + * This functions helps to set writeTranspose member of crc_config_t structure. Reflect in is CRC protocol parameter. + * + * @param enable True or false for the selected CRC protocol Reflect In (refin) parameter. + */ +static inline crc_transpose_type_t crc_GetTransposeTypeFromReflectIn(bool enable) +{ + return ((enable) ? kCrcTransposeBitsAndBytes : kCrcTransposeBytes); +} + +/*! + * @brief Returns transpose type for CRC protocol reflect out parameter. + * + * This functions helps to set readTranspose member of crc_config_t structure. Reflect out is CRC protocol parameter. + * + * @param enable True or false for the selected CRC protocol Reflect Out (refout) parameter. + */ +static inline crc_transpose_type_t crc_GetTransposeTypeFromReflectOut(bool enable) +{ + return ((enable) ? kCrcTransposeBitsAndBytes : kCrcTransposeNone); +} + +/*! + * @brief Starts checksum computation. + * + * Configures the CRC module for the specified CRC protocol. @n + * Starts the checksum computation by writing the seed value + * + * @param base CRC peripheral address. + * @param config Pointer to protocol configuration structure. + */ +static void crc_ConfigureAndStart(CRC_Type *base, const crc_module_config_t *config) +{ + uint32_t crcControl; + + /* pre-compute value for CRC control registger based on user configuraton without WAS field */ + crcControl = 0 | CRC_CTRL_TOT(config->writeTranspose) | CRC_CTRL_TOTR(config->readTranspose) | + CRC_CTRL_FXOR(config->complementChecksum) | CRC_CTRL_TCRC(config->crcBits); + + /* make sure the control register is clear - WAS is deasserted, and protocol is set */ + base->CTRL = crcControl; + + /* write polynomial register */ + base->GPOLY = config->polynomial; + + /* write pre-computed control register value along with WAS to start checksum computation */ + base->CTRL = crcControl | CRC_CTRL_WAS(true); + + /* write seed (initial checksum) */ + base->DATA = config->seed; + + /* deassert WAS by writing pre-computed CRC control register value */ + base->CTRL = crcControl; +} + +/*! + * @brief Starts final checksum computation. + * + * Configures the CRC module for the specified CRC protocol. @n + * Starts final checksum computation by writing the seed value. + * @note CRC_Get16bitResult() or CRC_Get32bitResult() return final checksum + * (output reflection and xor functions are applied). + * + * @param base CRC peripheral address. + * @param protocolConfig Pointer to protocol configuration structure. + */ +static void crc_SetProtocolConfig(CRC_Type *base, const crc_config_t *protocolConfig) +{ + crc_module_config_t moduleConfig; + /* convert protocol to CRC peripheral module configuration, prepare for final checksum */ + moduleConfig.polynomial = protocolConfig->polynomial; + moduleConfig.seed = protocolConfig->seed; + moduleConfig.readTranspose = crc_GetTransposeTypeFromReflectOut(protocolConfig->reflectOut); + moduleConfig.writeTranspose = crc_GetTransposeTypeFromReflectIn(protocolConfig->reflectIn); + moduleConfig.complementChecksum = protocolConfig->complementChecksum; + moduleConfig.crcBits = protocolConfig->crcBits; + + crc_ConfigureAndStart(base, &moduleConfig); +} + +/*! + * @brief Starts intermediate checksum computation. + * + * Configures the CRC module for the specified CRC protocol. @n + * Starts intermediate checksum computation by writing the seed value. + * @note CRC_Get16bitResult() or CRC_Get32bitResult() return intermediate checksum (raw data register value). + * + * @param base CRC peripheral address. + * @param protocolConfig Pointer to protocol configuration structure. + */ +static void crc_SetRawProtocolConfig(CRC_Type *base, const crc_config_t *protocolConfig) +{ + crc_module_config_t moduleConfig; + /* convert protocol to CRC peripheral module configuration, prepare for intermediate checksum */ + moduleConfig.polynomial = protocolConfig->polynomial; + moduleConfig.seed = protocolConfig->seed; + moduleConfig.readTranspose = + kCrcTransposeNone; /* intermediate checksum does no transpose of data register read value */ + moduleConfig.writeTranspose = crc_GetTransposeTypeFromReflectIn(protocolConfig->reflectIn); + moduleConfig.complementChecksum = false; /* intermediate checksum does no xor of data register read value */ + moduleConfig.crcBits = protocolConfig->crcBits; + + crc_ConfigureAndStart(base, &moduleConfig); +} + +void CRC_Init(CRC_Type *base, const crc_config_t *config) +{ + /* ungate clock */ + CLOCK_EnableClock(kCLOCK_Crc0); + /* configure CRC module and write the seed */ + if (config->crcResult == kCrcFinalChecksum) + { + crc_SetProtocolConfig(base, config); + } + else + { + crc_SetRawProtocolConfig(base, config); + } +} + +void CRC_GetDefaultConfig(crc_config_t *config) +{ + static const crc_config_t crc16ccit = { + CRC_DRIVER_DEFAULT_POLYNOMIAL, CRC_DRIVER_DEFAULT_SEED, + CRC_DRIVER_DEFAULT_REFLECT_IN, CRC_DRIVER_DEFAULT_REFLECT_OUT, + CRC_DRIVER_DEFAULT_COMPLEMENT_CHECKSUM, CRC_DRIVER_DEFAULT_CRC_BITS, + CRC_DRIVER_DEFAULT_CRC_RESULT, + }; + + *config = crc16ccit; +} + +void CRC_WriteData(CRC_Type *base, const uint8_t *data, size_t dataSize) +{ + const uint32_t *data32; + + /* 8-bit reads and writes till source address is aligned 4 bytes */ + while ((dataSize) && ((uint32_t)data & 3U)) + { + base->ACCESS8BIT.DATALL = *data; + data++; + dataSize--; + } + + /* use 32-bit reads and writes as long as possible */ + data32 = (const uint32_t *)data; + while (dataSize >= sizeof(uint32_t)) + { + base->DATA = *data32; + data32++; + dataSize -= sizeof(uint32_t); + } + + data = (const uint8_t *)data32; + + /* 8-bit reads and writes till end of data buffer */ + while (dataSize) + { + base->ACCESS8BIT.DATALL = *data; + data++; + dataSize--; + } +} + +uint32_t CRC_Get32bitResult(CRC_Type *base) +{ + return base->DATA; +} + +uint16_t CRC_Get16bitResult(CRC_Type *base) +{ + uint32_t retval; + uint32_t totr; /* type of transpose read bitfield */ + + retval = base->DATA; + totr = (base->CTRL & CRC_CTRL_TOTR_MASK) >> CRC_CTRL_TOTR_SHIFT; + + /* check transpose type to get 16-bit out of 32-bit register */ + if (totr >= 2U) + { + /* transpose of bytes for read is set, the result CRC is in CRC_DATA[HU:HL] */ + retval &= 0xFFFF0000U; + retval = retval >> 16U; + } + else + { + /* no transpose of bytes for read, the result CRC is in CRC_DATA[LU:LL] */ + retval &= 0x0000FFFFU; + } + return (uint16_t)retval; +} diff --git a/drivers/fsl_crc.h b/drivers/fsl_crc.h new file mode 100644 index 0000000..9d76731 --- /dev/null +++ b/drivers/fsl_crc.h @@ -0,0 +1,192 @@ +/* + * Copyright (c) 2015-2016, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_CRC_H_ +#define _FSL_CRC_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup crc + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief CRC driver version. Version 2.0.1. + * + * Current version: 2.0.1 + * + * Change log: + * - Version 2.0.1 + * - move DATA and DATALL macro definition from header file to source file + */ +#define FSL_CRC_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) +/*@}*/ + +#ifndef CRC_DRIVER_CUSTOM_DEFAULTS +/*! @brief Default configuration structure filled by CRC_GetDefaultConfig(). Use CRC16-CCIT-FALSE as defeault. */ +#define CRC_DRIVER_USE_CRC16_CCIT_FALSE_AS_DEFAULT 1 +#endif + +/*! @brief CRC bit width */ +typedef enum _crc_bits +{ + kCrcBits16 = 0U, /*!< Generate 16-bit CRC code */ + kCrcBits32 = 1U /*!< Generate 32-bit CRC code */ +} crc_bits_t; + +/*! @brief CRC result type */ +typedef enum _crc_result +{ + kCrcFinalChecksum = 0U, /*!< CRC data register read value is the final checksum. + Reflect out and final xor protocol features are applied. */ + kCrcIntermediateChecksum = 1U /*!< CRC data register read value is intermediate checksum (raw value). + Reflect out and final xor protocol feature are not applied. + Intermediate checksum can be used as a seed for CRC_Init() + to continue adding data to this checksum. */ +} crc_result_t; + +/*! +* @brief CRC protocol configuration. +* +* This structure holds the configuration for the CRC protocol. +* +*/ +typedef struct _crc_config +{ + uint32_t polynomial; /*!< CRC Polynomial, MSBit first. + Example polynomial: 0x1021 = 1_0000_0010_0001 = x^12+x^5+1 */ + uint32_t seed; /*!< Starting checksum value */ + bool reflectIn; /*!< Reflect bits on input. */ + bool reflectOut; /*!< Reflect bits on output. */ + bool complementChecksum; /*!< True if the result shall be complement of the actual checksum. */ + crc_bits_t crcBits; /*!< Selects 16- or 32- bit CRC protocol. */ + crc_result_t crcResult; /*!< Selects final or intermediate checksum return from CRC_Get16bitResult() or + CRC_Get32bitResult() */ +} crc_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @brief Enables and configures the CRC peripheral module. + * + * This functions enables the clock gate in the Kinetis SIM module for the CRC peripheral. + * It also configures the CRC module and starts checksum computation by writing the seed. + * + * @param base CRC peripheral address. + * @param config CRC module configuration structure + */ +void CRC_Init(CRC_Type *base, const crc_config_t *config); + +/*! + * @brief Disables the CRC peripheral module. + * + * This functions disables the clock gate in the Kinetis SIM module for the CRC peripheral. + * + * @param base CRC peripheral address. + */ +static inline void CRC_Deinit(CRC_Type *base) +{ + /* gate clock */ + CLOCK_DisableClock(kCLOCK_Crc0); +} + +/*! + * @brief Loads default values to CRC protocol configuration structure. + * + * Loads default values to CRC protocol configuration structure. The default values are: + * @code + * config->polynomial = 0x1021; + * config->seed = 0xFFFF; + * config->reflectIn = false; + * config->reflectOut = false; + * config->complementChecksum = false; + * config->crcBits = kCrcBits16; + * config->crcResult = kCrcFinalChecksum; + * @endcode + * + * @param config CRC protocol configuration structure + */ +void CRC_GetDefaultConfig(crc_config_t *config); + +/*! + * @brief Writes data to the CRC module. + * + * Writes input data buffer bytes to CRC data register. + * The configured type of transpose is applied. + * + * @param base CRC peripheral address. + * @param data Input data stream, MSByte in data[0]. + * @param dataSize Size in bytes of the input data buffer. + */ +void CRC_WriteData(CRC_Type *base, const uint8_t *data, size_t dataSize); + +/*! + * @brief Reads 32-bit checksum from the CRC module. + * + * Reads CRC data register (intermediate or final checksum). + * The configured type of transpose and complement are applied. + * + * @param base CRC peripheral address. + * @return intermediate or final 32-bit checksum, after configured transpose and complement operations. + */ +uint32_t CRC_Get32bitResult(CRC_Type *base); + +/*! + * @brief Reads 16-bit checksum from the CRC module. + * + * Reads CRC data register (intermediate or final checksum). + * The configured type of transpose and complement are applied. + * + * @param base CRC peripheral address. + * @return intermediate or final 16-bit checksum, after configured transpose and complement operations. + */ +uint16_t CRC_Get16bitResult(CRC_Type *base); + +#if defined(__cplusplus) +} +#endif + +/*! + *@} + */ + +#endif /* _FSL_CRC_H_ */ diff --git a/drivers/fsl_dac.c b/drivers/fsl_dac.c new file mode 100644 index 0000000..55e5517 --- /dev/null +++ b/drivers/fsl_dac.c @@ -0,0 +1,214 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_dac.h" + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Get instance number for DAC module. + * + * @param base DAC peripheral base address + */ +static uint32_t DAC_GetInstance(DAC_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/*! @brief Pointers to DAC bases for each instance. */ +static DAC_Type *const s_dacBases[] = DAC_BASE_PTRS; +/*! @brief Pointers to DAC clocks for each instance. */ +static const clock_ip_name_t s_dacClocks[] = DAC_CLOCKS; + +/******************************************************************************* + * Codes + ******************************************************************************/ +static uint32_t DAC_GetInstance(DAC_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_DAC_COUNT; instance++) + { + if (s_dacBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_DAC_COUNT); + + return instance; +} + +void DAC_Init(DAC_Type *base, const dac_config_t *config) +{ + assert(NULL != config); + + uint8_t tmp8; + + /* Enable the clock. */ + CLOCK_EnableClock(s_dacClocks[DAC_GetInstance(base)]); + + /* Configure. */ + /* DACx_C0. */ + tmp8 = base->C0 & ~(DAC_C0_DACRFS_MASK | DAC_C0_LPEN_MASK); + if (kDAC_ReferenceVoltageSourceVref2 == config->referenceVoltageSource) + { + tmp8 |= DAC_C0_DACRFS_MASK; + } + if (config->enableLowPowerMode) + { + tmp8 |= DAC_C0_LPEN_MASK; + } + base->C0 = tmp8; + + /* DAC_Enable(base, true); */ + /* Tip: The DAC output can be enabled till then after user sets their own available data in application. */ +} + +void DAC_Deinit(DAC_Type *base) +{ + DAC_Enable(base, false); + + /* Disable the clock. */ + CLOCK_DisableClock(s_dacClocks[DAC_GetInstance(base)]); +} + +void DAC_GetDefaultConfig(dac_config_t *config) +{ + assert(NULL != config); + + config->referenceVoltageSource = kDAC_ReferenceVoltageSourceVref2; + config->enableLowPowerMode = false; +} + +void DAC_SetBufferConfig(DAC_Type *base, const dac_buffer_config_t *config) +{ + assert(NULL != config); + + uint8_t tmp8; + + /* DACx_C0. */ + tmp8 = base->C0 & ~(DAC_C0_DACTRGSEL_MASK); + if (kDAC_BufferTriggerBySoftwareMode == config->triggerMode) + { + tmp8 |= DAC_C0_DACTRGSEL_MASK; + } + base->C0 = tmp8; + + /* DACx_C1. */ + tmp8 = base->C1 & + ~( +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION + DAC_C1_DACBFWM_MASK | +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION */ + DAC_C1_DACBFMD_MASK); +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION + tmp8 |= DAC_C1_DACBFWM(config->watermark); +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION */ + tmp8 |= DAC_C1_DACBFMD(config->workMode); + base->C1 = tmp8; + + /* DACx_C2. */ + tmp8 = base->C2 & ~DAC_C2_DACBFUP_MASK; + tmp8 |= DAC_C2_DACBFUP(config->upperLimit); + base->C2 = tmp8; +} + +void DAC_GetDefaultBufferConfig(dac_buffer_config_t *config) +{ + assert(NULL != config); + + config->triggerMode = kDAC_BufferTriggerBySoftwareMode; +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION + config->watermark = kDAC_BufferWatermark1Word; +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION */ + config->workMode = kDAC_BufferWorkAsNormalMode; + config->upperLimit = DAC_DATL_COUNT - 1U; +} + +void DAC_SetBufferValue(DAC_Type *base, uint8_t index, uint16_t value) +{ + assert(index < DAC_DATL_COUNT); + + base->DAT[index].DATL = (uint8_t)(0xFFU & value); /* Low 8-bit. */ + base->DAT[index].DATH = (uint8_t)((0xF00U & value) >> 8); /* High 4-bit. */ +} + +void DAC_SetBufferReadPointer(DAC_Type *base, uint8_t index) +{ + assert(index < DAC_DATL_COUNT); + + uint8_t tmp8 = base->C2 & ~DAC_C2_DACBFRP_MASK; + + tmp8 |= DAC_C2_DACBFRP(index); + base->C2 = tmp8; +} + +void DAC_EnableBufferInterrupts(DAC_Type *base, uint32_t mask) +{ + mask &= ( +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION + DAC_C0_DACBWIEN_MASK | +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */ + DAC_C0_DACBTIEN_MASK | DAC_C0_DACBBIEN_MASK); + base->C0 |= ((uint8_t)mask); /* Write 1 to enable. */ +} + +void DAC_DisableBufferInterrupts(DAC_Type *base, uint32_t mask) +{ + mask &= ( +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION + DAC_C0_DACBWIEN_MASK | +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */ + DAC_C0_DACBTIEN_MASK | DAC_C0_DACBBIEN_MASK); + base->C0 &= (uint8_t)(~((uint8_t)mask)); /* Write 0 to disable. */ +} + +uint32_t DAC_GetBufferStatusFlags(DAC_Type *base) +{ + return (uint32_t)(base->SR & ( +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION + DAC_SR_DACBFWMF_MASK | +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */ + DAC_SR_DACBFRPTF_MASK | DAC_SR_DACBFRPBF_MASK)); +} + +void DAC_ClearBufferStatusFlags(DAC_Type *base, uint32_t mask) +{ + mask &= ( +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION + DAC_SR_DACBFWMF_MASK | +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */ + DAC_SR_DACBFRPTF_MASK | DAC_SR_DACBFRPBF_MASK); + base->SR &= (uint8_t)(~((uint8_t)mask)); /* Write 0 to clear flags. */ +} diff --git a/drivers/fsl_dac.h b/drivers/fsl_dac.h new file mode 100644 index 0000000..925ca19 --- /dev/null +++ b/drivers/fsl_dac.h @@ -0,0 +1,378 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_DAC_H_ +#define _FSL_DAC_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup dac + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief DAC driver version 2.0.1. */ +#define FSL_DAC_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) +/*@}*/ + +/*! + * @brief DAC buffer flags. + */ +enum _dac_buffer_status_flags +{ +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION + kDAC_BufferWatermarkFlag = DAC_SR_DACBFWMF_MASK, /*!< DAC Buffer Watermark Flag. */ +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */ + kDAC_BufferReadPointerTopPositionFlag = DAC_SR_DACBFRPTF_MASK, /*!< DAC Buffer Read Pointer Top Position Flag. */ + kDAC_BufferReadPointerBottomPositionFlag = DAC_SR_DACBFRPBF_MASK, /*!< DAC Buffer Read Pointer Bottom Position + Flag. */ +}; + +/*! + * @brief DAC buffer interrupts. + */ +enum _dac_buffer_interrupt_enable +{ +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION + kDAC_BufferWatermarkInterruptEnable = DAC_C0_DACBWIEN_MASK, /*!< DAC Buffer Watermark Interrupt Enable. */ +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */ + kDAC_BufferReadPointerTopInterruptEnable = DAC_C0_DACBTIEN_MASK, /*!< DAC Buffer Read Pointer Top Flag Interrupt + Enable. */ + kDAC_BufferReadPointerBottomInterruptEnable = DAC_C0_DACBBIEN_MASK, /*!< DAC Buffer Read Pointer Bottom Flag + Interrupt Enable */ +}; + +/*! + * @brief DAC reference voltage source. + */ +typedef enum _dac_reference_voltage_source +{ + kDAC_ReferenceVoltageSourceVref1 = 0U, /*!< The DAC selects DACREF_1 as the reference voltage. */ + kDAC_ReferenceVoltageSourceVref2 = 1U, /*!< The DAC selects DACREF_2 as the reference voltage. */ +} dac_reference_voltage_source_t; + +/*! + * @brief DAC buffer trigger mode. + */ +typedef enum _dac_buffer_trigger_mode +{ + kDAC_BufferTriggerByHardwareMode = 0U, /*!< The DAC hardware trigger is selected. */ + kDAC_BufferTriggerBySoftwareMode = 1U, /*!< The DAC software trigger is selected. */ +} dac_buffer_trigger_mode_t; + +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION +/*! + * @brief DAC buffer watermark. + */ +typedef enum _dac_buffer_watermark +{ +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_1_WORD) && FSL_FEATURE_DAC_HAS_WATERMARK_1_WORD + kDAC_BufferWatermark1Word = 0U, /*!< 1 word away from the upper limit. */ +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_1_WORD */ +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_2_WORDS) && FSL_FEATURE_DAC_HAS_WATERMARK_2_WORDS + kDAC_BufferWatermark2Word = 1U, /*!< 2 words away from the upper limit. */ +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_2_WORDS */ +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_3_WORDS) && FSL_FEATURE_DAC_HAS_WATERMARK_3_WORDS + kDAC_BufferWatermark3Word = 2U, /*!< 3 words away from the upper limit. */ +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_3_WORDS */ +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_4_WORDS) && FSL_FEATURE_DAC_HAS_WATERMARK_4_WORDS + kDAC_BufferWatermark4Word = 3U, /*!< 4 words away from the upper limit. */ +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_4_WORDS */ +} dac_buffer_watermark_t; +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION */ + +/*! + * @brief DAC buffer work mode. + */ +typedef enum _dac_buffer_work_mode +{ + kDAC_BufferWorkAsNormalMode = 0U, /*!< Normal mode. */ +#if defined(FSL_FEATURE_DAC_HAS_BUFFER_SWING_MODE) && FSL_FEATURE_DAC_HAS_BUFFER_SWING_MODE + kDAC_BufferWorkAsSwingMode, /*!< Swing mode. */ +#endif /* FSL_FEATURE_DAC_HAS_BUFFER_SWING_MODE */ + kDAC_BufferWorkAsOneTimeScanMode, /*!< One-Time Scan mode. */ +#if defined(FSL_FEATURE_DAC_HAS_BUFFER_FIFO_MODE) && FSL_FEATURE_DAC_HAS_BUFFER_FIFO_MODE + kDAC_BufferWorkAsFIFOMode, /*!< FIFO mode. */ +#endif /* FSL_FEATURE_DAC_HAS_BUFFER_FIFO_MODE */ +} dac_buffer_work_mode_t; + +/*! + * @brief DAC module configuration. + */ +typedef struct _dac_config +{ + dac_reference_voltage_source_t referenceVoltageSource; /*!< Select the DAC reference voltage source. */ + bool enableLowPowerMode; /*!< Enable the low-power mode. */ +} dac_config_t; + +/*! + * @brief DAC buffer configuration. + */ +typedef struct _dac_buffer_config +{ + dac_buffer_trigger_mode_t triggerMode; /*!< Select the buffer's trigger mode. */ +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION + dac_buffer_watermark_t watermark; /*!< Select the buffer's watermark. */ +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION */ + dac_buffer_work_mode_t workMode; /*!< Select the buffer's work mode. */ + uint8_t upperLimit; /*!< Set the upper limit for buffer index. + Normally, 0-15 is available for buffer with 16 item. */ +} dac_buffer_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name Initialization + * @{ + */ + +/*! + * @brief Initializes the DAC module. + * + * This function initializes the DAC module, including: + * - Enabling the clock for DAC module. + * - Configuring the DAC converter with a user configuration. + * - Enabling the DAC module. + * + * @param base DAC peripheral base address. + * @param config Pointer to the configuration structure. See "dac_config_t". + */ +void DAC_Init(DAC_Type *base, const dac_config_t *config); + +/*! + * @brief De-initializes the DAC module. + * + * This function de-initializes the DAC module, including: + * - Disabling the DAC module. + * - Disabling the clock for the DAC module. + * + * @param base DAC peripheral base address. + */ +void DAC_Deinit(DAC_Type *base); + +/*! + * @brief Initializes the DAC user configuration structure. + * + * This function initializes the user configuration structure to a default value. The default values are: + * @code + * config->referenceVoltageSource = kDAC_ReferenceVoltageSourceVref2; + * config->enableLowPowerMode = false; + * @endcode + * @param config Pointer to the configuration structure. See "dac_config_t". + */ +void DAC_GetDefaultConfig(dac_config_t *config); + +/*! + * @brief Enables the DAC module. + * + * @param base DAC peripheral base address. + * @param enable Enables/disables the feature. + */ +static inline void DAC_Enable(DAC_Type *base, bool enable) +{ + if (enable) + { + base->C0 |= DAC_C0_DACEN_MASK; + } + else + { + base->C0 &= ~DAC_C0_DACEN_MASK; + } +} + +/* @} */ + +/*! + * @name Buffer + * @{ + */ + +/*! + * @brief Enables the DAC buffer. + * + * @param base DAC peripheral base address. + * @param enable Enables/disables the feature. + */ +static inline void DAC_EnableBuffer(DAC_Type *base, bool enable) +{ + if (enable) + { + base->C1 |= DAC_C1_DACBFEN_MASK; + } + else + { + base->C1 &= ~DAC_C1_DACBFEN_MASK; + } +} + +/*! + * @brief Configures the CMP buffer. + * + * @param base DAC peripheral base address. + * @param config Pointer to the configuration structure. See "dac_buffer_config_t". + */ +void DAC_SetBufferConfig(DAC_Type *base, const dac_buffer_config_t *config); + +/*! + * @brief Initializes the DAC buffer configuration structure. + * + * This function initializes the DAC buffer configuration structure to a default value. The default values are: + * @code + * config->triggerMode = kDAC_BufferTriggerBySoftwareMode; + * config->watermark = kDAC_BufferWatermark1Word; + * config->workMode = kDAC_BufferWorkAsNormalMode; + * config->upperLimit = DAC_DATL_COUNT - 1U; + * @endcode + * @param config Pointer to the configuration structure. See "dac_buffer_config_t". + */ +void DAC_GetDefaultBufferConfig(dac_buffer_config_t *config); + +/*! + * @brief Enables the DMA for DAC buffer. + * + * @param base DAC peripheral base address. + * @param enable Enables/disables the feature. + */ +static inline void DAC_EnableBufferDMA(DAC_Type *base, bool enable) +{ + if (enable) + { + base->C1 |= DAC_C1_DMAEN_MASK; + } + else + { + base->C1 &= ~DAC_C1_DMAEN_MASK; + } +} + +/*! + * @brief Sets the value for items in the buffer. + * + * @param base DAC peripheral base address. + * @param index Setting index for items in the buffer. The available index should not exceed the size of the DAC buffer. + * @param value Setting value for items in the buffer. 12-bits are available. + */ +void DAC_SetBufferValue(DAC_Type *base, uint8_t index, uint16_t value); + +/*! + * @brief Triggers the buffer by software and updates the read pointer of the DAC buffer. + * + * This function triggers the function by software. The read pointer of the DAC buffer is updated with one step + * after this function is called. Changing the read pointer depends on the buffer's work mode. + * + * @param base DAC peripheral base address. + */ +static inline void DAC_DoSoftwareTriggerBuffer(DAC_Type *base) +{ + base->C0 |= DAC_C0_DACSWTRG_MASK; +} + +/*! + * @brief Gets the current read pointer of the DAC buffer. + * + * This function gets the current read pointer of the DAC buffer. + * The current output value depends on the item indexed by the read pointer. It is updated + * by software trigger or hardware trigger. + * + * @param base DAC peripheral base address. + * + * @return Current read pointer of DAC buffer. + */ +static inline uint8_t DAC_GetBufferReadPointer(DAC_Type *base) +{ + return ((base->C2 & DAC_C2_DACBFRP_MASK) >> DAC_C2_DACBFRP_SHIFT); +} + +/*! + * @brief Sets the current read pointer of the DAC buffer. + * + * This function sets the current read pointer of the DAC buffer. + * The current output value depends on the item indexed by the read pointer. It is updated by + * software trigger or hardware trigger. After the read pointer changes, the DAC output value also changes. + * + * @param base DAC peripheral base address. + * @param index Setting index value for the pointer. + */ +void DAC_SetBufferReadPointer(DAC_Type *base, uint8_t index); + +/*! + * @brief Enables interrupts for the DAC buffer. + * + * @param base DAC peripheral base address. + * @param mask Mask value for interrupts. See "_dac_buffer_interrupt_enable". + */ +void DAC_EnableBufferInterrupts(DAC_Type *base, uint32_t mask); + +/*! + * @brief Disables interrupts for the DAC buffer. + * + * @param base DAC peripheral base address. + * @param mask Mask value for interrupts. See "_dac_buffer_interrupt_enable". + */ +void DAC_DisableBufferInterrupts(DAC_Type *base, uint32_t mask); + +/*! + * @brief Gets the flags of events for the DAC buffer. + * + * @param base DAC peripheral base address. + * + * @return Mask value for the asserted flags. See "_dac_buffer_status_flags". + */ +uint32_t DAC_GetBufferStatusFlags(DAC_Type *base); + +/*! + * @brief Clears the flags of events for the DAC buffer. + * + * @param base DAC peripheral base address. + * @param mask Mask value for flags. See "_dac_buffer_status_flags_t". + */ +void DAC_ClearBufferStatusFlags(DAC_Type *base, uint32_t mask); + +/* @} */ + +#if defined(__cplusplus) +} +#endif +/*! + * @} + */ +#endif /* _FSL_DAC_H_ */ diff --git a/drivers/fsl_dmamux.c b/drivers/fsl_dmamux.c new file mode 100644 index 0000000..a288b9f --- /dev/null +++ b/drivers/fsl_dmamux.c @@ -0,0 +1,87 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_dmamux.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/*! + * @brief Get instance number for DMAMUX. + * + * @param base DMAMUX peripheral base address. + */ +static uint32_t DMAMUX_GetInstance(DMAMUX_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ + +/*! @brief Array to map DMAMUX instance number to base pointer. */ +static DMAMUX_Type *const s_dmamuxBases[] = DMAMUX_BASE_PTRS; + +/*! @brief Array to map DMAMUX instance number to clock name. */ +static const clock_ip_name_t s_dmamuxClockName[] = DMAMUX_CLOCKS; + +/******************************************************************************* + * Code + ******************************************************************************/ +static uint32_t DMAMUX_GetInstance(DMAMUX_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_DMAMUX_COUNT; instance++) + { + if (s_dmamuxBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_DMAMUX_COUNT); + + return instance; +} + +void DMAMUX_Init(DMAMUX_Type *base) +{ + CLOCK_EnableClock(s_dmamuxClockName[DMAMUX_GetInstance(base)]); +} + +void DMAMUX_Deinit(DMAMUX_Type *base) +{ + CLOCK_DisableClock(s_dmamuxClockName[DMAMUX_GetInstance(base)]); +} diff --git a/drivers/fsl_dmamux.h b/drivers/fsl_dmamux.h new file mode 100644 index 0000000..5dce562 --- /dev/null +++ b/drivers/fsl_dmamux.h @@ -0,0 +1,175 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_DMAMUX_H_ +#define _FSL_DMAMUX_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup dmamux + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief DMAMUX driver version 2.0.1. */ +#define FSL_DMAMUX_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) +/*@}*/ + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /* __cplusplus */ + +/*! + * @name DMAMUX Initialize and De-initialize + * @{ + */ + +/*! + * @brief Initializes DMAMUX peripheral. + * + * This function ungate the DMAMUX clock. + * + * @param base DMAMUX peripheral base address. + * + */ +void DMAMUX_Init(DMAMUX_Type *base); + +/*! + * @brief Deinitializes DMAMUX peripheral. + * + * This function gate the DMAMUX clock. + * + * @param base DMAMUX peripheral base address. + */ +void DMAMUX_Deinit(DMAMUX_Type *base); + +/* @} */ +/*! + * @name DMAMUX Channel Operation + * @{ + */ + +/*! + * @brief Enable DMAMUX channel. + * + * This function enable DMAMUX channel to work. + * + * @param base DMAMUX peripheral base address. + * @param channel DMAMUX channel number. + */ +static inline void DMAMUX_EnableChannel(DMAMUX_Type *base, uint32_t channel) +{ + assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->CHCFG[channel] |= DMAMUX_CHCFG_ENBL_MASK; +} + +/*! + * @brief Disable DMAMUX channel. + * + * This function disable DMAMUX channel. + * + * @note User must disable DMAMUX channel before configuring it. + * @param base DMAMUX peripheral base address. + * @param channel DMAMUX channel number. + */ +static inline void DMAMUX_DisableChannel(DMAMUX_Type *base, uint32_t channel) +{ + assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->CHCFG[channel] &= ~DMAMUX_CHCFG_ENBL_MASK; +} + +/*! + * @brief Configure DMAMUX channel source. + * + * @param base DMAMUX peripheral base address. + * @param channel DMAMUX channel number. + * @param source Channel source which is used to trigger DMA transfer. + */ +static inline void DMAMUX_SetSource(DMAMUX_Type *base, uint32_t channel, uint32_t source) +{ + assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->CHCFG[channel] = ((base->CHCFG[channel] & ~DMAMUX_CHCFG_SOURCE_MASK) | DMAMUX_CHCFG_SOURCE(source)); +} + +#if defined(FSL_FEATURE_DMAMUX_HAS_TRIG) && FSL_FEATURE_DMAMUX_HAS_TRIG > 0U +/*! + * @brief Enable DMAMUX period trigger. + * + * This function enable DMAMUX period trigger feature. + * + * @param base DMAMUX peripheral base address. + * @param channel DMAMUX channel number. + */ +static inline void DMAMUX_EnablePeriodTrigger(DMAMUX_Type *base, uint32_t channel) +{ + assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->CHCFG[channel] |= DMAMUX_CHCFG_TRIG_MASK; +} + +/*! + * @brief Disable DMAMUX period trigger. + * + * This function disable DMAMUX period trigger. + * + * @param base DMAMUX peripheral base address. + * @param channel DMAMUX channel number. + */ +static inline void DMAMUX_DisablePeriodTrigger(DMAMUX_Type *base, uint32_t channel) +{ + assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->CHCFG[channel] &= ~DMAMUX_CHCFG_TRIG_MASK; +} +#endif /* FSL_FEATURE_DMAMUX_HAS_TRIG */ + +/* @} */ + +#if defined(__cplusplus) +} +#endif /* __cplusplus */ + +/* @} */ + +#endif /* _FSL_DMAMUX_H_ */ diff --git a/drivers/fsl_dspi.c b/drivers/fsl_dspi.c new file mode 100644 index 0000000..b2f28ed --- /dev/null +++ b/drivers/fsl_dspi.c @@ -0,0 +1,1661 @@ +/* +* Copyright (c) 2015, Freescale Semiconductor, Inc. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without modification, +* are permitted provided that the following conditions are met: +* +* o Redistributions of source code must retain the above copyright notice, this list +* of conditions and the following disclaimer. +* +* o Redistributions in binary form must reproduce the above copyright notice, this +* list of conditions and the following disclaimer in the documentation and/or +* other materials provided with the distribution. +* +* o Neither the name of Freescale Semiconductor, Inc. nor the names of its +* contributors may be used to endorse or promote products derived from this +* software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR +* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "fsl_dspi.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ +/*! @brief Typedef for master interrupt handler. */ +typedef void (*dspi_master_isr_t)(SPI_Type *base, dspi_master_handle_t *handle); + +/*! @brief Typedef for slave interrupt handler. */ +typedef void (*dspi_slave_isr_t)(SPI_Type *base, dspi_slave_handle_t *handle); + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Get instance number for DSPI module. + * + * @param base DSPI peripheral base address. + */ +uint32_t DSPI_GetInstance(SPI_Type *base); + +/*! + * @brief Configures the DSPI peripheral chip select polarity. + * + * This function takes in the desired peripheral chip select (Pcs) and it's corresponding desired polarity and + * configures the Pcs signal to operate with the desired characteristic. + * + * @param base DSPI peripheral address. + * @param pcs The particular peripheral chip select (parameter value is of type dspi_which_pcs_t) for which we wish to + * apply the active high or active low characteristic. + * @param activeLowOrHigh The setting for either "active high, inactive low (0)" or "active low, inactive high(1)" of + * type dspi_pcs_polarity_config_t. + */ +static void DSPI_SetOnePcsPolarity(SPI_Type *base, dspi_which_pcs_t pcs, dspi_pcs_polarity_config_t activeLowOrHigh); + +/*! + * @brief Master fill up the TX FIFO with data. + * This is not a public API as it is called from other driver functions. + */ +static void DSPI_MasterTransferFillUpTxFifo(SPI_Type *base, dspi_master_handle_t *handle); + +/*! + * @brief Master finish up a transfer. + * It would call back if there is callback function and set the state to idle. + * This is not a public API as it is called from other driver functions. + */ +static void DSPI_MasterTransferComplete(SPI_Type *base, dspi_master_handle_t *handle); + +/*! + * @brief Slave fill up the TX FIFO with data. + * This is not a public API as it is called from other driver functions. + */ +static void DSPI_SlaveTransferFillUpTxFifo(SPI_Type *base, dspi_slave_handle_t *handle); + +/*! + * @brief Slave finish up a transfer. + * It would call back if there is callback function and set the state to idle. + * This is not a public API as it is called from other driver functions. + */ +static void DSPI_SlaveTransferComplete(SPI_Type *base, dspi_slave_handle_t *handle); + +/*! + * @brief DSPI common interrupt handler. + * + * @param base DSPI peripheral address. + * @param handle pointer to g_dspiHandle which stores the transfer state. + */ +static void DSPI_CommonIRQHandler(SPI_Type *base, void *param); + +/*! + * @brief Master prepare the transfer. + * Basically it set up dspi_master_handle . + * This is not a public API as it is called from other driver functions. fsl_dspi_edma.c also call this function. + */ +static void DSPI_MasterTransferPrepare(SPI_Type *base, dspi_master_handle_t *handle, dspi_transfer_t *transfer); + +/******************************************************************************* + * Variables + ******************************************************************************/ + +/* Defines constant value arrays for the baud rate pre-scalar and scalar divider values.*/ +static const uint32_t s_baudratePrescaler[] = {2, 3, 5, 7}; +static const uint32_t s_baudrateScaler[] = {2, 4, 6, 8, 16, 32, 64, 128, + 256, 512, 1024, 2048, 4096, 8192, 16384, 32768}; + +static const uint32_t s_delayPrescaler[] = {1, 3, 5, 7}; +static const uint32_t s_delayScaler[] = {2, 4, 8, 16, 32, 64, 128, 256, + 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536}; + +/*! @brief Pointers to dspi bases for each instance. */ +static SPI_Type *const s_dspiBases[] = SPI_BASE_PTRS; + +/*! @brief Pointers to dspi IRQ number for each instance. */ +static IRQn_Type const s_dspiIRQ[] = SPI_IRQS; + +/*! @brief Pointers to dspi clocks for each instance. */ +static clock_ip_name_t const s_dspiClock[] = DSPI_CLOCKS; + +/*! @brief Pointers to dspi handles for each instance. */ +static void *g_dspiHandle[FSL_FEATURE_SOC_DSPI_COUNT]; + +/*! @brief Pointer to master IRQ handler for each instance. */ +static dspi_master_isr_t s_dspiMasterIsr; + +/*! @brief Pointer to slave IRQ handler for each instance. */ +static dspi_slave_isr_t s_dspiSlaveIsr; + +/********************************************************************************************************************** +* Code +*********************************************************************************************************************/ +uint32_t DSPI_GetInstance(SPI_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_DSPI_COUNT; instance++) + { + if (s_dspiBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_DSPI_COUNT); + + return instance; +} + +void DSPI_MasterInit(SPI_Type *base, const dspi_master_config_t *masterConfig, uint32_t srcClock_Hz) +{ + uint32_t temp; + /* enable DSPI clock */ + CLOCK_EnableClock(s_dspiClock[DSPI_GetInstance(base)]); + + DSPI_Enable(base, true); + DSPI_StopTransfer(base); + + DSPI_SetMasterSlaveMode(base, kDSPI_Master); + + temp = base->MCR & (~(SPI_MCR_CONT_SCKE_MASK | SPI_MCR_MTFE_MASK | SPI_MCR_ROOE_MASK | SPI_MCR_SMPL_PT_MASK | + SPI_MCR_DIS_TXF_MASK | SPI_MCR_DIS_RXF_MASK)); + + base->MCR = temp | SPI_MCR_CONT_SCKE(masterConfig->enableContinuousSCK) | + SPI_MCR_MTFE(masterConfig->enableModifiedTimingFormat) | + SPI_MCR_ROOE(masterConfig->enableRxFifoOverWrite) | SPI_MCR_SMPL_PT(masterConfig->samplePoint) | + SPI_MCR_DIS_TXF(false) | SPI_MCR_DIS_RXF(false); + + DSPI_SetOnePcsPolarity(base, masterConfig->whichPcs, masterConfig->pcsActiveHighOrLow); + + if (0 == DSPI_MasterSetBaudRate(base, masterConfig->whichCtar, masterConfig->ctarConfig.baudRate, srcClock_Hz)) + { + assert(false); + } + + temp = base->CTAR[masterConfig->whichCtar] & + ~(SPI_CTAR_FMSZ_MASK | SPI_CTAR_CPOL_MASK | SPI_CTAR_CPHA_MASK | SPI_CTAR_LSBFE_MASK); + + base->CTAR[masterConfig->whichCtar] = + temp | SPI_CTAR_FMSZ(masterConfig->ctarConfig.bitsPerFrame - 1) | SPI_CTAR_CPOL(masterConfig->ctarConfig.cpol) | + SPI_CTAR_CPHA(masterConfig->ctarConfig.cpha) | SPI_CTAR_LSBFE(masterConfig->ctarConfig.direction); + + DSPI_MasterSetDelayTimes(base, masterConfig->whichCtar, kDSPI_PcsToSck, srcClock_Hz, + masterConfig->ctarConfig.pcsToSckDelayInNanoSec); + DSPI_MasterSetDelayTimes(base, masterConfig->whichCtar, kDSPI_LastSckToPcs, srcClock_Hz, + masterConfig->ctarConfig.lastSckToPcsDelayInNanoSec); + DSPI_MasterSetDelayTimes(base, masterConfig->whichCtar, kDSPI_BetweenTransfer, srcClock_Hz, + masterConfig->ctarConfig.betweenTransferDelayInNanoSec); + + DSPI_StartTransfer(base); +} + +void DSPI_MasterGetDefaultConfig(dspi_master_config_t *masterConfig) +{ + masterConfig->whichCtar = kDSPI_Ctar0; + masterConfig->ctarConfig.baudRate = 500000; + masterConfig->ctarConfig.bitsPerFrame = 8; + masterConfig->ctarConfig.cpol = kDSPI_ClockPolarityActiveHigh; + masterConfig->ctarConfig.cpha = kDSPI_ClockPhaseFirstEdge; + masterConfig->ctarConfig.direction = kDSPI_MsbFirst; + + masterConfig->ctarConfig.pcsToSckDelayInNanoSec = 1000; + masterConfig->ctarConfig.lastSckToPcsDelayInNanoSec = 1000; + masterConfig->ctarConfig.betweenTransferDelayInNanoSec = 1000; + + masterConfig->whichPcs = kDSPI_Pcs0; + masterConfig->pcsActiveHighOrLow = kDSPI_PcsActiveLow; + + masterConfig->enableContinuousSCK = false; + masterConfig->enableRxFifoOverWrite = false; + masterConfig->enableModifiedTimingFormat = false; + masterConfig->samplePoint = kDSPI_SckToSin0Clock; +} + +void DSPI_SlaveInit(SPI_Type *base, const dspi_slave_config_t *slaveConfig) +{ + uint32_t temp = 0; + + /* enable DSPI clock */ + CLOCK_EnableClock(s_dspiClock[DSPI_GetInstance(base)]); + + DSPI_Enable(base, true); + DSPI_StopTransfer(base); + + DSPI_SetMasterSlaveMode(base, kDSPI_Slave); + + temp = base->MCR & (~(SPI_MCR_CONT_SCKE_MASK | SPI_MCR_MTFE_MASK | SPI_MCR_ROOE_MASK | SPI_MCR_SMPL_PT_MASK | + SPI_MCR_DIS_TXF_MASK | SPI_MCR_DIS_RXF_MASK)); + + base->MCR = temp | SPI_MCR_CONT_SCKE(slaveConfig->enableContinuousSCK) | + SPI_MCR_MTFE(slaveConfig->enableModifiedTimingFormat) | + SPI_MCR_ROOE(slaveConfig->enableRxFifoOverWrite) | SPI_MCR_SMPL_PT(slaveConfig->samplePoint) | + SPI_MCR_DIS_TXF(false) | SPI_MCR_DIS_RXF(false); + + DSPI_SetOnePcsPolarity(base, kDSPI_Pcs0, kDSPI_PcsActiveLow); + + temp = base->CTAR[slaveConfig->whichCtar] & + ~(SPI_CTAR_FMSZ_MASK | SPI_CTAR_CPOL_MASK | SPI_CTAR_CPHA_MASK | SPI_CTAR_LSBFE_MASK); + + base->CTAR[slaveConfig->whichCtar] = temp | SPI_CTAR_SLAVE_FMSZ(slaveConfig->ctarConfig.bitsPerFrame - 1) | + SPI_CTAR_SLAVE_CPOL(slaveConfig->ctarConfig.cpol) | + SPI_CTAR_SLAVE_CPHA(slaveConfig->ctarConfig.cpha); + + DSPI_StartTransfer(base); +} + +void DSPI_SlaveGetDefaultConfig(dspi_slave_config_t *slaveConfig) +{ + slaveConfig->whichCtar = kDSPI_Ctar0; + slaveConfig->ctarConfig.bitsPerFrame = 8; + slaveConfig->ctarConfig.cpol = kDSPI_ClockPolarityActiveHigh; + slaveConfig->ctarConfig.cpha = kDSPI_ClockPhaseFirstEdge; + + slaveConfig->enableContinuousSCK = false; + slaveConfig->enableRxFifoOverWrite = false; + slaveConfig->enableModifiedTimingFormat = false; + slaveConfig->samplePoint = kDSPI_SckToSin0Clock; +} + +void DSPI_Deinit(SPI_Type *base) +{ + DSPI_StopTransfer(base); + DSPI_Enable(base, false); + + /* disable DSPI clock */ + CLOCK_DisableClock(s_dspiClock[DSPI_GetInstance(base)]); +} + +static void DSPI_SetOnePcsPolarity(SPI_Type *base, dspi_which_pcs_t pcs, dspi_pcs_polarity_config_t activeLowOrHigh) +{ + uint32_t temp; + + temp = base->MCR; + + if (activeLowOrHigh == kDSPI_PcsActiveLow) + { + temp |= SPI_MCR_PCSIS(pcs); + } + else + { + temp &= ~SPI_MCR_PCSIS(pcs); + } + + base->MCR = temp; +} + +uint32_t DSPI_MasterSetBaudRate(SPI_Type *base, + dspi_ctar_selection_t whichCtar, + uint32_t baudRate_Bps, + uint32_t srcClock_Hz) +{ + /* for master mode configuration, if slave mode detected, return 0*/ + if (!DSPI_IsMaster(base)) + { + return 0; + } + uint32_t temp; + uint32_t prescaler, bestPrescaler; + uint32_t scaler, bestScaler; + uint32_t dbr, bestDbr; + uint32_t realBaudrate, bestBaudrate; + uint32_t diff, min_diff; + uint32_t baudrate = baudRate_Bps; + + /* find combination of prescaler and scaler resulting in baudrate closest to the requested value */ + min_diff = 0xFFFFFFFFU; + bestPrescaler = 0; + bestScaler = 0; + bestDbr = 1; + bestBaudrate = 0; /* required to avoid compilation warning */ + + /* In all for loops, if min_diff = 0, the exit for loop*/ + for (prescaler = 0; (prescaler < 4) && min_diff; prescaler++) + { + for (scaler = 0; (scaler < 16) && min_diff; scaler++) + { + for (dbr = 1; (dbr < 3) && min_diff; dbr++) + { + realBaudrate = ((srcClock_Hz * dbr) / (s_baudratePrescaler[prescaler] * (s_baudrateScaler[scaler]))); + + /* calculate the baud rate difference based on the conditional statement that states that the calculated + * baud rate must not exceed the desired baud rate. + */ + if (baudrate >= realBaudrate) + { + diff = baudrate - realBaudrate; + if (min_diff > diff) + { + /* a better match found */ + min_diff = diff; + bestPrescaler = prescaler; + bestScaler = scaler; + bestBaudrate = realBaudrate; + bestDbr = dbr; + } + } + } + } + } + + /* write the best dbr, prescalar, and baud rate scalar to the CTAR */ + temp = base->CTAR[whichCtar] & ~(SPI_CTAR_DBR_MASK | SPI_CTAR_PBR_MASK | SPI_CTAR_BR_MASK); + + base->CTAR[whichCtar] = temp | ((bestDbr - 1) << SPI_CTAR_DBR_SHIFT) | (bestPrescaler << SPI_CTAR_PBR_SHIFT) | + (bestScaler << SPI_CTAR_BR_SHIFT); + + /* return the actual calculated baud rate */ + return bestBaudrate; +} + +void DSPI_MasterSetDelayScaler( + SPI_Type *base, dspi_ctar_selection_t whichCtar, uint32_t prescaler, uint32_t scaler, dspi_delay_type_t whichDelay) +{ + /* these settings are only relevant in master mode */ + if (DSPI_IsMaster(base)) + { + switch (whichDelay) + { + case kDSPI_PcsToSck: + base->CTAR[whichCtar] = (base->CTAR[whichCtar] & (~SPI_CTAR_PCSSCK_MASK) & (~SPI_CTAR_CSSCK_MASK)) | + SPI_CTAR_PCSSCK(prescaler) | SPI_CTAR_CSSCK(scaler); + break; + case kDSPI_LastSckToPcs: + base->CTAR[whichCtar] = (base->CTAR[whichCtar] & (~SPI_CTAR_PASC_MASK) & (~SPI_CTAR_ASC_MASK)) | + SPI_CTAR_PASC(prescaler) | SPI_CTAR_ASC(scaler); + break; + case kDSPI_BetweenTransfer: + base->CTAR[whichCtar] = (base->CTAR[whichCtar] & (~SPI_CTAR_PDT_MASK) & (~SPI_CTAR_DT_MASK)) | + SPI_CTAR_PDT(prescaler) | SPI_CTAR_DT(scaler); + break; + default: + break; + } + } +} + +uint32_t DSPI_MasterSetDelayTimes(SPI_Type *base, + dspi_ctar_selection_t whichCtar, + dspi_delay_type_t whichDelay, + uint32_t srcClock_Hz, + uint32_t delayTimeInNanoSec) +{ + /* for master mode configuration, if slave mode detected, return 0 */ + if (!DSPI_IsMaster(base)) + { + return 0; + } + + uint32_t prescaler, bestPrescaler; + uint32_t scaler, bestScaler; + uint32_t realDelay, bestDelay; + uint32_t diff, min_diff; + uint32_t initialDelayNanoSec; + + /* find combination of prescaler and scaler resulting in the delay closest to the + * requested value + */ + min_diff = 0xFFFFFFFFU; + /* Initialize prescaler and scaler to their max values to generate the max delay */ + bestPrescaler = 0x3; + bestScaler = 0xF; + bestDelay = (((1000000000U * 4) / srcClock_Hz) * s_delayPrescaler[bestPrescaler] * s_delayScaler[bestScaler]) / 4; + + /* First calculate the initial, default delay */ + initialDelayNanoSec = 1000000000U / srcClock_Hz * 2; + + /* If the initial, default delay is already greater than the desired delay, then + * set the delays to their initial value (0) and return the delay. In other words, + * there is no way to decrease the delay value further. + */ + if (initialDelayNanoSec >= delayTimeInNanoSec) + { + DSPI_MasterSetDelayScaler(base, whichCtar, 0, 0, whichDelay); + return initialDelayNanoSec; + } + + /* In all for loops, if min_diff = 0, the exit for loop */ + for (prescaler = 0; (prescaler < 4) && min_diff; prescaler++) + { + for (scaler = 0; (scaler < 16) && min_diff; scaler++) + { + realDelay = ((4000000000U / srcClock_Hz) * s_delayPrescaler[prescaler] * s_delayScaler[scaler]) / 4; + + /* calculate the delay difference based on the conditional statement + * that states that the calculated delay must not be less then the desired delay + */ + if (realDelay >= delayTimeInNanoSec) + { + diff = realDelay - delayTimeInNanoSec; + if (min_diff > diff) + { + /* a better match found */ + min_diff = diff; + bestPrescaler = prescaler; + bestScaler = scaler; + bestDelay = realDelay; + } + } + } + } + + /* write the best dbr, prescalar, and baud rate scalar to the CTAR */ + DSPI_MasterSetDelayScaler(base, whichCtar, bestPrescaler, bestScaler, whichDelay); + + /* return the actual calculated baud rate */ + return bestDelay; +} + +void DSPI_GetDefaultDataCommandConfig(dspi_command_data_config_t *command) +{ + command->isPcsContinuous = false; + command->whichCtar = kDSPI_Ctar0; + command->whichPcs = kDSPI_Pcs0; + command->isEndOfQueue = false; + command->clearTransferCount = false; +} + +void DSPI_MasterWriteDataBlocking(SPI_Type *base, dspi_command_data_config_t *command, uint16_t data) +{ + /* First, clear Transmit Complete Flag (TCF) */ + DSPI_ClearStatusFlags(base, kDSPI_TxCompleteFlag); + + while (!(DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag)) + { + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + } + + base->PUSHR = SPI_PUSHR_CONT(command->isPcsContinuous) | SPI_PUSHR_CTAS(command->whichCtar) | + SPI_PUSHR_PCS(command->whichPcs) | SPI_PUSHR_EOQ(command->isEndOfQueue) | + SPI_PUSHR_CTCNT(command->clearTransferCount) | SPI_PUSHR_TXDATA(data); + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + + /* Wait till TCF sets */ + while (!(DSPI_GetStatusFlags(base) & kDSPI_TxCompleteFlag)) + { + } +} + +void DSPI_MasterWriteCommandDataBlocking(SPI_Type *base, uint32_t data) +{ + /* First, clear Transmit Complete Flag (TCF) */ + DSPI_ClearStatusFlags(base, kDSPI_TxCompleteFlag); + + while (!(DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag)) + { + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + } + + base->PUSHR = data; + + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + + /* Wait till TCF sets */ + while (!(DSPI_GetStatusFlags(base) & kDSPI_TxCompleteFlag)) + { + } +} + +void DSPI_SlaveWriteDataBlocking(SPI_Type *base, uint32_t data) +{ + /* First, clear Transmit Complete Flag (TCF) */ + DSPI_ClearStatusFlags(base, kDSPI_TxCompleteFlag); + + while (!(DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag)) + { + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + } + + base->PUSHR_SLAVE = data; + + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + + /* Wait till TCF sets */ + while (!(DSPI_GetStatusFlags(base) & kDSPI_TxCompleteFlag)) + { + } +} + +void DSPI_EnableInterrupts(SPI_Type *base, uint32_t mask) +{ + if (mask & SPI_RSER_TFFF_RE_MASK) + { + base->RSER &= ~SPI_RSER_TFFF_DIRS_MASK; + } + if (mask & SPI_RSER_RFDF_RE_MASK) + { + base->RSER &= ~SPI_RSER_RFDF_DIRS_MASK; + } + base->RSER |= mask; +} + +/*Transactional APIs -- Master*/ + +void DSPI_MasterTransferCreateHandle(SPI_Type *base, + dspi_master_handle_t *handle, + dspi_master_transfer_callback_t callback, + void *userData) +{ + assert(handle); + + /* Zero the handle. */ + memset(handle, 0, sizeof(*handle)); + + g_dspiHandle[DSPI_GetInstance(base)] = handle; + + handle->callback = callback; + handle->userData = userData; +} + +status_t DSPI_MasterTransferBlocking(SPI_Type *base, dspi_transfer_t *transfer) +{ + assert(transfer); + + uint16_t wordToSend = 0; + uint16_t wordReceived = 0; + uint8_t dummyData = DSPI_DUMMY_DATA; + uint8_t bitsPerFrame; + + uint32_t command; + uint32_t lastCommand; + + uint8_t *txData; + uint8_t *rxData; + uint32_t remainingSendByteCount; + uint32_t remainingReceiveByteCount; + + uint32_t fifoSize; + dspi_command_data_config_t commandStruct; + + /* If the transfer count is zero, then return immediately.*/ + if (transfer->dataSize == 0) + { + return kStatus_InvalidArgument; + } + + DSPI_StopTransfer(base); + DSPI_DisableInterrupts(base, kDSPI_AllInterruptEnable); + DSPI_FlushFifo(base, true, true); + DSPI_ClearStatusFlags(base, kDSPI_AllStatusFlag); + + /*Calculate the command and lastCommand*/ + commandStruct.whichPcs = + (dspi_which_pcs_t)(1U << ((transfer->configFlags & DSPI_MASTER_PCS_MASK) >> DSPI_MASTER_PCS_SHIFT)); + commandStruct.isEndOfQueue = false; + commandStruct.clearTransferCount = false; + commandStruct.whichCtar = + (dspi_ctar_selection_t)((transfer->configFlags & DSPI_MASTER_CTAR_MASK) >> DSPI_MASTER_CTAR_SHIFT); + commandStruct.isPcsContinuous = (bool)(transfer->configFlags & kDSPI_MasterPcsContinuous); + + command = DSPI_MasterGetFormattedCommand(&(commandStruct)); + + commandStruct.isEndOfQueue = true; + commandStruct.isPcsContinuous = (bool)(transfer->configFlags & kDSPI_MasterActiveAfterTransfer); + lastCommand = DSPI_MasterGetFormattedCommand(&(commandStruct)); + + /*Calculate the bitsPerFrame*/ + bitsPerFrame = ((base->CTAR[commandStruct.whichCtar] & SPI_CTAR_FMSZ_MASK) >> SPI_CTAR_FMSZ_SHIFT) + 1; + + txData = transfer->txData; + rxData = transfer->rxData; + remainingSendByteCount = transfer->dataSize; + remainingReceiveByteCount = transfer->dataSize; + + if ((base->MCR & SPI_MCR_DIS_RXF_MASK) || (base->MCR & SPI_MCR_DIS_TXF_MASK)) + { + fifoSize = 1; + } + else + { + fifoSize = FSL_FEATURE_DSPI_FIFO_SIZEn(base); + } + + DSPI_StartTransfer(base); + + if (bitsPerFrame <= 8) + { + while (remainingSendByteCount > 0) + { + if (remainingSendByteCount == 1) + { + while ((remainingReceiveByteCount - remainingSendByteCount) >= fifoSize) + { + if (DSPI_GetStatusFlags(base) & kDSPI_RxFifoDrainRequestFlag) + { + if (rxData != NULL) + { + *(rxData) = DSPI_ReadData(base); + rxData++; + } + else + { + DSPI_ReadData(base); + } + remainingReceiveByteCount--; + + DSPI_ClearStatusFlags(base, kDSPI_RxFifoDrainRequestFlag); + } + } + + while (!(DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag)) + { + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + } + + if (txData != NULL) + { + base->PUSHR = (*txData) | (lastCommand); + txData++; + } + else + { + base->PUSHR = (lastCommand) | (dummyData); + } + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + remainingSendByteCount--; + + while (remainingReceiveByteCount > 0) + { + if (DSPI_GetStatusFlags(base) & kDSPI_RxFifoDrainRequestFlag) + { + if (rxData != NULL) + { + /* Read data from POPR*/ + *(rxData) = DSPI_ReadData(base); + rxData++; + } + else + { + DSPI_ReadData(base); + } + remainingReceiveByteCount--; + + DSPI_ClearStatusFlags(base, kDSPI_RxFifoDrainRequestFlag); + } + } + } + else + { + /*Wait until Tx Fifo is not full*/ + while (!(DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag)) + { + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + } + if (txData != NULL) + { + base->PUSHR = command | (uint16_t)(*txData); + txData++; + } + else + { + base->PUSHR = command | dummyData; + } + remainingSendByteCount--; + + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + + if (DSPI_GetStatusFlags(base) & kDSPI_RxFifoDrainRequestFlag) + { + if (rxData != NULL) + { + *(rxData) = DSPI_ReadData(base); + rxData++; + } + else + { + DSPI_ReadData(base); + } + remainingReceiveByteCount--; + + DSPI_ClearStatusFlags(base, kDSPI_RxFifoDrainRequestFlag); + } + } + } + } + else + { + while (remainingSendByteCount > 0) + { + if (remainingSendByteCount <= 2) + { + while (((remainingReceiveByteCount - remainingSendByteCount) / 2) >= fifoSize) + { + if (DSPI_GetStatusFlags(base) & kDSPI_RxFifoDrainRequestFlag) + { + wordReceived = DSPI_ReadData(base); + + if (rxData != NULL) + { + *rxData = wordReceived; + ++rxData; + *rxData = wordReceived >> 8; + ++rxData; + } + remainingReceiveByteCount -= 2; + + DSPI_ClearStatusFlags(base, kDSPI_RxFifoDrainRequestFlag); + } + } + + while (!(DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag)) + { + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + } + + if (txData != NULL) + { + wordToSend = *(txData); + ++txData; + + if (remainingSendByteCount > 1) + { + wordToSend |= (unsigned)(*(txData)) << 8U; + ++txData; + } + } + else + { + wordToSend = dummyData; + } + + base->PUSHR = lastCommand | wordToSend; + + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + remainingSendByteCount = 0; + + while (remainingReceiveByteCount > 0) + { + if (DSPI_GetStatusFlags(base) & kDSPI_RxFifoDrainRequestFlag) + { + wordReceived = DSPI_ReadData(base); + + if (remainingReceiveByteCount != 1) + { + if (rxData != NULL) + { + *(rxData) = wordReceived; + ++rxData; + *(rxData) = wordReceived >> 8; + ++rxData; + } + remainingReceiveByteCount -= 2; + } + else + { + if (rxData != NULL) + { + *(rxData) = wordReceived; + ++rxData; + } + remainingReceiveByteCount--; + } + DSPI_ClearStatusFlags(base, kDSPI_RxFifoDrainRequestFlag); + } + } + } + else + { + /*Wait until Tx Fifo is not full*/ + while (!(DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag)) + { + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + } + + if (txData != NULL) + { + wordToSend = *(txData); + ++txData; + wordToSend |= (unsigned)(*(txData)) << 8U; + ++txData; + } + else + { + wordToSend = dummyData; + } + base->PUSHR = command | wordToSend; + remainingSendByteCount -= 2; + + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + + if (DSPI_GetStatusFlags(base) & kDSPI_RxFifoDrainRequestFlag) + { + wordReceived = DSPI_ReadData(base); + + if (rxData != NULL) + { + *rxData = wordReceived; + ++rxData; + *rxData = wordReceived >> 8; + ++rxData; + } + remainingReceiveByteCount -= 2; + + DSPI_ClearStatusFlags(base, kDSPI_RxFifoDrainRequestFlag); + } + } + } + } + + return kStatus_Success; +} + +static void DSPI_MasterTransferPrepare(SPI_Type *base, dspi_master_handle_t *handle, dspi_transfer_t *transfer) +{ + dspi_command_data_config_t commandStruct; + + DSPI_StopTransfer(base); + DSPI_FlushFifo(base, true, true); + DSPI_ClearStatusFlags(base, kDSPI_AllStatusFlag); + + commandStruct.whichPcs = + (dspi_which_pcs_t)(1U << ((transfer->configFlags & DSPI_MASTER_PCS_MASK) >> DSPI_MASTER_PCS_SHIFT)); + commandStruct.isEndOfQueue = false; + commandStruct.clearTransferCount = false; + commandStruct.whichCtar = + (dspi_ctar_selection_t)((transfer->configFlags & DSPI_MASTER_CTAR_MASK) >> DSPI_MASTER_CTAR_SHIFT); + commandStruct.isPcsContinuous = (bool)(transfer->configFlags & kDSPI_MasterPcsContinuous); + handle->command = DSPI_MasterGetFormattedCommand(&(commandStruct)); + + commandStruct.isEndOfQueue = true; + commandStruct.isPcsContinuous = (bool)(transfer->configFlags & kDSPI_MasterActiveAfterTransfer); + handle->lastCommand = DSPI_MasterGetFormattedCommand(&(commandStruct)); + + handle->bitsPerFrame = ((base->CTAR[commandStruct.whichCtar] & SPI_CTAR_FMSZ_MASK) >> SPI_CTAR_FMSZ_SHIFT) + 1; + + if ((base->MCR & SPI_MCR_DIS_RXF_MASK) || (base->MCR & SPI_MCR_DIS_TXF_MASK)) + { + handle->fifoSize = 1; + } + else + { + handle->fifoSize = FSL_FEATURE_DSPI_FIFO_SIZEn(base); + } + handle->txData = transfer->txData; + handle->rxData = transfer->rxData; + handle->remainingSendByteCount = transfer->dataSize; + handle->remainingReceiveByteCount = transfer->dataSize; + handle->totalByteCount = transfer->dataSize; +} + +status_t DSPI_MasterTransferNonBlocking(SPI_Type *base, dspi_master_handle_t *handle, dspi_transfer_t *transfer) +{ + assert(handle && transfer); + + /* If the transfer count is zero, then return immediately.*/ + if (transfer->dataSize == 0) + { + return kStatus_InvalidArgument; + } + + /* Check that we're not busy.*/ + if (handle->state == kDSPI_Busy) + { + return kStatus_DSPI_Busy; + } + + handle->state = kDSPI_Busy; + + DSPI_MasterTransferPrepare(base, handle, transfer); + DSPI_StartTransfer(base); + + /* Enable the NVIC for DSPI peripheral. */ + EnableIRQ(s_dspiIRQ[DSPI_GetInstance(base)]); + + DSPI_MasterTransferFillUpTxFifo(base, handle); + + /* RX FIFO Drain request: RFDF_RE to enable RFDF interrupt + * Since SPI is a synchronous interface, we only need to enable the RX interrupt. + * The IRQ handler will get the status of RX and TX interrupt flags. + */ + s_dspiMasterIsr = DSPI_MasterTransferHandleIRQ; + + DSPI_EnableInterrupts(base, kDSPI_RxFifoDrainRequestInterruptEnable); + + return kStatus_Success; +} + +status_t DSPI_MasterTransferGetCount(SPI_Type *base, dspi_master_handle_t *handle, size_t *count) +{ + assert(handle); + + if (!count) + { + return kStatus_InvalidArgument; + } + + /* Catch when there is not an active transfer. */ + if (handle->state != kDSPI_Busy) + { + *count = 0; + return kStatus_NoTransferInProgress; + } + + *count = handle->totalByteCount - handle->remainingReceiveByteCount; + return kStatus_Success; +} + +static void DSPI_MasterTransferComplete(SPI_Type *base, dspi_master_handle_t *handle) +{ + /* Disable interrupt requests*/ + DSPI_DisableInterrupts(base, kDSPI_RxFifoDrainRequestInterruptEnable | kDSPI_TxFifoFillRequestInterruptEnable); + + status_t status = 0; + if (handle->state == kDSPI_Error) + { + status = kStatus_DSPI_Error; + } + else + { + status = kStatus_Success; + } + + if (handle->callback) + { + handle->callback(base, handle, status, handle->userData); + } + + /* The transfer is complete.*/ + handle->state = kDSPI_Idle; +} + +static void DSPI_MasterTransferFillUpTxFifo(SPI_Type *base, dspi_master_handle_t *handle) +{ + uint16_t wordToSend = 0; + uint8_t dummyData = DSPI_DUMMY_DATA; + + /* If bits/frame is greater than one byte */ + if (handle->bitsPerFrame > 8) + { + /* Fill the fifo until it is full or until the send word count is 0 or until the difference + * between the remainingReceiveByteCount and remainingSendByteCount equals the FIFO depth. + * The reason for checking the difference is to ensure we only send as much as the + * RX FIFO can receive. + * For this case where bitsPerFrame > 8, each entry in the FIFO contains 2 bytes of the + * send data, hence the difference between the remainingReceiveByteCount and + * remainingSendByteCount must be divided by 2 to convert this difference into a + * 16-bit (2 byte) value. + */ + while ((DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag) && + ((handle->remainingReceiveByteCount - handle->remainingSendByteCount) / 2 < handle->fifoSize)) + { + if (handle->remainingSendByteCount <= 2) + { + if (handle->txData) + { + if (handle->remainingSendByteCount == 1) + { + wordToSend = *(handle->txData); + } + else + { + wordToSend = *(handle->txData); + ++handle->txData; /* increment to next data byte */ + wordToSend |= (unsigned)(*(handle->txData)) << 8U; + } + } + else + { + wordToSend = dummyData; + } + handle->remainingSendByteCount = 0; + base->PUSHR = handle->lastCommand | wordToSend; + } + /* For all words except the last word */ + else + { + if (handle->txData) + { + wordToSend = *(handle->txData); + ++handle->txData; /* increment to next data byte */ + wordToSend |= (unsigned)(*(handle->txData)) << 8U; + ++handle->txData; /* increment to next data byte */ + } + else + { + wordToSend = dummyData; + } + handle->remainingSendByteCount -= 2; /* decrement remainingSendByteCount by 2 */ + base->PUSHR = handle->command | wordToSend; + } + + /* Try to clear the TFFF; if the TX FIFO is full this will clear */ + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + + /* exit loop if send count is zero, else update local variables for next loop */ + if (handle->remainingSendByteCount == 0) + { + break; + } + } /* End of TX FIFO fill while loop */ + } + /* Optimized for bits/frame less than or equal to one byte. */ + else + { + /* Fill the fifo until it is full or until the send word count is 0 or until the difference + * between the remainingReceiveByteCount and remainingSendByteCount equals the FIFO depth. + * The reason for checking the difference is to ensure we only send as much as the + * RX FIFO can receive. + */ + while ((DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag) && + ((handle->remainingReceiveByteCount - handle->remainingSendByteCount) < handle->fifoSize)) + { + if (handle->txData) + { + wordToSend = *(handle->txData); + ++handle->txData; + } + else + { + wordToSend = dummyData; + } + + if (handle->remainingSendByteCount == 1) + { + base->PUSHR = handle->lastCommand | wordToSend; + } + else + { + base->PUSHR = handle->command | wordToSend; + } + + /* Try to clear the TFFF; if the TX FIFO is full this will clear */ + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + + --handle->remainingSendByteCount; + + /* exit loop if send count is zero, else update local variables for next loop */ + if (handle->remainingSendByteCount == 0) + { + break; + } + } + } +} + +void DSPI_MasterTransferAbort(SPI_Type *base, dspi_master_handle_t *handle) +{ + DSPI_StopTransfer(base); + + /* Disable interrupt requests*/ + DSPI_DisableInterrupts(base, kDSPI_RxFifoDrainRequestInterruptEnable | kDSPI_TxFifoFillRequestInterruptEnable); + + handle->state = kDSPI_Idle; +} + +void DSPI_MasterTransferHandleIRQ(SPI_Type *base, dspi_master_handle_t *handle) +{ + /* RECEIVE IRQ handler: Check read buffer only if there are remaining bytes to read. */ + if (handle->remainingReceiveByteCount) + { + /* Check read buffer.*/ + uint16_t wordReceived; /* Maximum supported data bit length in master mode is 16-bits */ + + /* If bits/frame is greater than one byte */ + if (handle->bitsPerFrame > 8) + { + while (DSPI_GetStatusFlags(base) & kDSPI_RxFifoDrainRequestFlag) + { + wordReceived = DSPI_ReadData(base); + /* clear the rx fifo drain request, needed for non-DMA applications as this flag + * will remain set even if the rx fifo is empty. By manually clearing this flag, it + * either remain clear if no more data is in the fifo, or it will set if there is + * more data in the fifo. + */ + DSPI_ClearStatusFlags(base, kDSPI_RxFifoDrainRequestFlag); + + /* Store read bytes into rx buffer only if a buffer pointer was provided */ + if (handle->rxData) + { + /* For the last word received, if there is an extra byte due to the odd transfer + * byte count, only save the the last byte and discard the upper byte + */ + if (handle->remainingReceiveByteCount == 1) + { + *handle->rxData = wordReceived; /* Write first data byte */ + --handle->remainingReceiveByteCount; + } + else + { + *handle->rxData = wordReceived; /* Write first data byte */ + ++handle->rxData; /* increment to next data byte */ + *handle->rxData = wordReceived >> 8; /* Write second data byte */ + ++handle->rxData; /* increment to next data byte */ + handle->remainingReceiveByteCount -= 2; + } + } + else + { + if (handle->remainingReceiveByteCount == 1) + { + --handle->remainingReceiveByteCount; + } + else + { + handle->remainingReceiveByteCount -= 2; + } + } + if (handle->remainingReceiveByteCount == 0) + { + break; + } + } /* End of RX FIFO drain while loop */ + } + /* Optimized for bits/frame less than or equal to one byte. */ + else + { + while (DSPI_GetStatusFlags(base) & kDSPI_RxFifoDrainRequestFlag) + { + wordReceived = DSPI_ReadData(base); + /* clear the rx fifo drain request, needed for non-DMA applications as this flag + * will remain set even if the rx fifo is empty. By manually clearing this flag, it + * either remain clear if no more data is in the fifo, or it will set if there is + * more data in the fifo. + */ + DSPI_ClearStatusFlags(base, kDSPI_RxFifoDrainRequestFlag); + + /* Store read bytes into rx buffer only if a buffer pointer was provided */ + if (handle->rxData) + { + *handle->rxData = wordReceived; + ++handle->rxData; + } + + --handle->remainingReceiveByteCount; + + if (handle->remainingReceiveByteCount == 0) + { + break; + } + } /* End of RX FIFO drain while loop */ + } + } + + /* Check write buffer. We always have to send a word in order to keep the transfer + * moving. So if the caller didn't provide a send buffer, we just send a zero. + */ + if (handle->remainingSendByteCount) + { + DSPI_MasterTransferFillUpTxFifo(base, handle); + } + + /* Check if we're done with this transfer.*/ + if ((handle->remainingSendByteCount == 0) && (handle->remainingReceiveByteCount == 0)) + { + /* Complete the transfer and disable the interrupts */ + DSPI_MasterTransferComplete(base, handle); + } +} + +/*Transactional APIs -- Slave*/ +void DSPI_SlaveTransferCreateHandle(SPI_Type *base, + dspi_slave_handle_t *handle, + dspi_slave_transfer_callback_t callback, + void *userData) +{ + assert(handle); + + /* Zero the handle. */ + memset(handle, 0, sizeof(*handle)); + + g_dspiHandle[DSPI_GetInstance(base)] = handle; + + handle->callback = callback; + handle->userData = userData; +} + +status_t DSPI_SlaveTransferNonBlocking(SPI_Type *base, dspi_slave_handle_t *handle, dspi_transfer_t *transfer) +{ + assert(handle && transfer); + + /* If receive length is zero */ + if (transfer->dataSize == 0) + { + return kStatus_InvalidArgument; + } + + /* If both send buffer and receive buffer is null */ + if ((!(transfer->txData)) && (!(transfer->rxData))) + { + return kStatus_InvalidArgument; + } + + /* Check that we're not busy.*/ + if (handle->state == kDSPI_Busy) + { + return kStatus_DSPI_Busy; + } + handle->state = kDSPI_Busy; + + /* Enable the NVIC for DSPI peripheral. */ + EnableIRQ(s_dspiIRQ[DSPI_GetInstance(base)]); + + /* Store transfer information */ + handle->txData = transfer->txData; + handle->rxData = transfer->rxData; + handle->remainingSendByteCount = transfer->dataSize; + handle->remainingReceiveByteCount = transfer->dataSize; + handle->totalByteCount = transfer->dataSize; + + handle->errorCount = 0; + + uint8_t whichCtar = (transfer->configFlags & DSPI_SLAVE_CTAR_MASK) >> DSPI_SLAVE_CTAR_SHIFT; + handle->bitsPerFrame = + (((base->CTAR_SLAVE[whichCtar]) & SPI_CTAR_SLAVE_FMSZ_MASK) >> SPI_CTAR_SLAVE_FMSZ_SHIFT) + 1; + + DSPI_StopTransfer(base); + + DSPI_FlushFifo(base, true, true); + DSPI_ClearStatusFlags(base, kDSPI_AllStatusFlag); + + DSPI_StartTransfer(base); + + /* Prepare data to transmit */ + DSPI_SlaveTransferFillUpTxFifo(base, handle); + + s_dspiSlaveIsr = DSPI_SlaveTransferHandleIRQ; + + /* Enable RX FIFO drain request, the slave only use this interrupt */ + DSPI_EnableInterrupts(base, kDSPI_RxFifoDrainRequestInterruptEnable); + + if (handle->rxData) + { + /* RX FIFO overflow request enable */ + DSPI_EnableInterrupts(base, kDSPI_RxFifoOverflowInterruptEnable); + } + if (handle->txData) + { + /* TX FIFO underflow request enable */ + DSPI_EnableInterrupts(base, kDSPI_TxFifoUnderflowInterruptEnable); + } + + return kStatus_Success; +} + +status_t DSPI_SlaveTransferGetCount(SPI_Type *base, dspi_slave_handle_t *handle, size_t *count) +{ + assert(handle); + + if (!count) + { + return kStatus_InvalidArgument; + } + + /* Catch when there is not an active transfer. */ + if (handle->state != kDSPI_Busy) + { + *count = 0; + return kStatus_NoTransferInProgress; + } + + *count = handle->totalByteCount - handle->remainingReceiveByteCount; + return kStatus_Success; +} + +static void DSPI_SlaveTransferFillUpTxFifo(SPI_Type *base, dspi_slave_handle_t *handle) +{ + uint16_t transmitData = 0; + uint8_t dummyPattern = DSPI_DUMMY_DATA; + + /* Service the transmitter, if transmit buffer provided, transmit the data, + * else transmit dummy pattern + */ + while (DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag) + { + /* Transmit data */ + if (handle->remainingSendByteCount > 0) + { + /* Have data to transmit, update the transmit data and push to FIFO */ + if (handle->bitsPerFrame <= 8) + { + /* bits/frame is 1 byte */ + if (handle->txData) + { + /* Update transmit data and transmit pointer */ + transmitData = *handle->txData; + handle->txData++; + } + else + { + transmitData = dummyPattern; + } + + /* Decrease remaining dataSize */ + --handle->remainingSendByteCount; + } + /* bits/frame is 2 bytes */ + else + { + /* With multibytes per frame transmission, the transmit frame contains data from + * transmit buffer until sent dataSize matches user request. Other bytes will set to + * dummy pattern value. + */ + if (handle->txData) + { + /* Update first byte of transmit data and transmit pointer */ + transmitData = *handle->txData; + handle->txData++; + + if (handle->remainingSendByteCount == 1) + { + /* Decrease remaining dataSize */ + --handle->remainingSendByteCount; + /* Update second byte of transmit data to second byte of dummy pattern */ + transmitData = transmitData | (uint16_t)(((uint16_t)dummyPattern) << 8); + } + else + { + /* Update second byte of transmit data and transmit pointer */ + transmitData = transmitData | (uint16_t)((uint16_t)(*handle->txData) << 8); + handle->txData++; + handle->remainingSendByteCount -= 2; + } + } + else + { + if (handle->remainingSendByteCount == 1) + { + --handle->remainingSendByteCount; + } + else + { + handle->remainingSendByteCount -= 2; + } + transmitData = (uint16_t)((uint16_t)(dummyPattern) << 8) | dummyPattern; + } + } + } + else + { + break; + } + + /* Write the data to the DSPI data register */ + base->PUSHR_SLAVE = transmitData; + + /* Try to clear TFFF by writing a one to it; it will not clear if TX FIFO not full */ + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + } +} + +static void DSPI_SlaveTransferComplete(SPI_Type *base, dspi_slave_handle_t *handle) +{ + /* Disable interrupt requests */ + DSPI_DisableInterrupts(base, kDSPI_TxFifoUnderflowInterruptEnable | kDSPI_TxFifoFillRequestInterruptEnable | + kDSPI_RxFifoOverflowInterruptEnable | kDSPI_RxFifoDrainRequestInterruptEnable); + + /* The transfer is complete. */ + handle->txData = NULL; + handle->rxData = NULL; + handle->remainingReceiveByteCount = 0; + handle->remainingSendByteCount = 0; + + status_t status = 0; + if (handle->state == kDSPI_Error) + { + status = kStatus_DSPI_Error; + } + else + { + status = kStatus_Success; + } + + if (handle->callback) + { + handle->callback(base, handle, status, handle->userData); + } + + handle->state = kDSPI_Idle; +} + +void DSPI_SlaveTransferAbort(SPI_Type *base, dspi_slave_handle_t *handle) +{ + DSPI_StopTransfer(base); + + /* Disable interrupt requests */ + DSPI_DisableInterrupts(base, kDSPI_TxFifoUnderflowInterruptEnable | kDSPI_TxFifoFillRequestInterruptEnable | + kDSPI_RxFifoOverflowInterruptEnable | kDSPI_RxFifoDrainRequestInterruptEnable); + + handle->state = kDSPI_Idle; + handle->remainingSendByteCount = 0; + handle->remainingReceiveByteCount = 0; +} + +void DSPI_SlaveTransferHandleIRQ(SPI_Type *base, dspi_slave_handle_t *handle) +{ + uint8_t dummyPattern = DSPI_DUMMY_DATA; + uint32_t dataReceived; + uint32_t dataSend = 0; + + /* Because SPI protocol is synchronous, the number of bytes that that slave received from the + * master is the actual number of bytes that the slave transmitted to the master. So we only + * monitor the received dataSize to know when the transfer is complete. + */ + if (handle->remainingReceiveByteCount > 0) + { + while (DSPI_GetStatusFlags(base) & kDSPI_RxFifoDrainRequestFlag) + { + /* Have received data in the buffer. */ + dataReceived = base->POPR; + /*Clear the rx fifo drain request, needed for non-DMA applications as this flag + * will remain set even if the rx fifo is empty. By manually clearing this flag, it + * either remain clear if no more data is in the fifo, or it will set if there is + * more data in the fifo. + */ + DSPI_ClearStatusFlags(base, kDSPI_RxFifoDrainRequestFlag); + + /* If bits/frame is one byte */ + if (handle->bitsPerFrame <= 8) + { + if (handle->rxData) + { + /* Receive buffer is not null, store data into it */ + *handle->rxData = dataReceived; + ++handle->rxData; + } + /* Descrease remaining receive byte count */ + --handle->remainingReceiveByteCount; + + if (handle->remainingSendByteCount > 0) + { + if (handle->txData) + { + dataSend = *handle->txData; + ++handle->txData; + } + else + { + dataSend = dummyPattern; + } + + --handle->remainingSendByteCount; + /* Write the data to the DSPI data register */ + base->PUSHR_SLAVE = dataSend; + } + } + else /* If bits/frame is 2 bytes */ + { + /* With multibytes frame receiving, we only receive till the received dataSize + * matches user request. Other bytes will be ignored. + */ + if (handle->rxData) + { + /* Receive buffer is not null, store first byte into it */ + *handle->rxData = dataReceived; + ++handle->rxData; + + if (handle->remainingReceiveByteCount == 1) + { + /* Decrease remaining receive byte count */ + --handle->remainingReceiveByteCount; + } + else + { + /* Receive buffer is not null, store second byte into it */ + *handle->rxData = dataReceived >> 8; + ++handle->rxData; + handle->remainingReceiveByteCount -= 2; + } + } + /* If no handle->rxData*/ + else + { + if (handle->remainingReceiveByteCount == 1) + { + /* Decrease remaining receive byte count */ + --handle->remainingReceiveByteCount; + } + else + { + handle->remainingReceiveByteCount -= 2; + } + } + + if (handle->remainingSendByteCount > 0) + { + if (handle->txData) + { + dataSend = *handle->txData; + ++handle->txData; + + if (handle->remainingSendByteCount == 1) + { + --handle->remainingSendByteCount; + dataSend |= (uint16_t)((uint16_t)(dummyPattern) << 8); + } + else + { + dataSend |= (uint32_t)(*handle->txData) << 8; + ++handle->txData; + handle->remainingSendByteCount -= 2; + } + } + /* If no handle->txData*/ + else + { + if (handle->remainingSendByteCount == 1) + { + --handle->remainingSendByteCount; + } + else + { + handle->remainingSendByteCount -= 2; + } + dataSend = (uint16_t)((uint16_t)(dummyPattern) << 8) | dummyPattern; + } + /* Write the data to the DSPI data register */ + base->PUSHR_SLAVE = dataSend; + } + } + /* Try to clear TFFF by writing a one to it; it will not clear if TX FIFO not full */ + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + + if (handle->remainingReceiveByteCount == 0) + { + break; + } + } + } + /* Check if remaining receive byte count matches user request */ + if ((handle->remainingReceiveByteCount == 0) || (handle->state == kDSPI_Error)) + { + /* Other cases, stop the transfer. */ + DSPI_SlaveTransferComplete(base, handle); + return; + } + + /* Catch tx fifo underflow conditions, service only if tx under flow interrupt enabled */ + if ((DSPI_GetStatusFlags(base) & kDSPI_TxFifoUnderflowFlag) && (base->RSER & SPI_RSER_TFUF_RE_MASK)) + { + DSPI_ClearStatusFlags(base, kDSPI_TxFifoUnderflowFlag); + /* Change state to error and clear flag */ + if (handle->txData) + { + handle->state = kDSPI_Error; + } + handle->errorCount++; + } + /* Catch rx fifo overflow conditions, service only if rx over flow interrupt enabled */ + if ((DSPI_GetStatusFlags(base) & kDSPI_RxFifoOverflowFlag) && (base->RSER & SPI_RSER_RFOF_RE_MASK)) + { + DSPI_ClearStatusFlags(base, kDSPI_RxFifoOverflowFlag); + /* Change state to error and clear flag */ + if (handle->txData) + { + handle->state = kDSPI_Error; + } + handle->errorCount++; + } +} + +static void DSPI_CommonIRQHandler(SPI_Type *base, void *param) +{ + if (DSPI_IsMaster(base)) + { + s_dspiMasterIsr(base, (dspi_master_handle_t *)param); + } + else + { + s_dspiSlaveIsr(base, (dspi_slave_handle_t *)param); + } +} + +#if (FSL_FEATURE_SOC_DSPI_COUNT > 0) +void SPI0_DriverIRQHandler(void) +{ + assert(g_dspiHandle[0]); + DSPI_CommonIRQHandler(SPI0, g_dspiHandle[0]); +} +#endif + +#if (FSL_FEATURE_SOC_DSPI_COUNT > 1) +void SPI1_DriverIRQHandler(void) +{ + assert(g_dspiHandle[1]); + DSPI_CommonIRQHandler(SPI1, g_dspiHandle[1]); +} +#endif + +#if (FSL_FEATURE_SOC_DSPI_COUNT > 2) +void SPI2_DriverIRQHandler(void) +{ + assert(g_dspiHandle[2]); + DSPI_CommonIRQHandler(SPI2, g_dspiHandle[2]); +} +#endif + +#if (FSL_FEATURE_SOC_DSPI_COUNT > 3) +void SPI3_DriverIRQHandler(void) +{ + assert(g_dspiHandle[3]); + DSPI_CommonIRQHandler(SPI3, g_dspiHandle[3]); +} +#endif + +#if (FSL_FEATURE_SOC_DSPI_COUNT > 4) +void SPI4_DriverIRQHandler(void) +{ + assert(g_dspiHandle[4]); + DSPI_CommonIRQHandler(SPI4, g_dspiHandle[4]); +} +#endif + +#if (FSL_FEATURE_SOC_DSPI_COUNT > 5) +void SPI5_DriverIRQHandler(void) +{ + assert(g_dspiHandle[5]); + DSPI_CommonIRQHandler(SPI5, g_dspiHandle[5]); +} +#endif + +#if (FSL_FEATURE_SOC_DSPI_COUNT > 6) +#error "Should write the SPIx_DriverIRQHandler function that instance greater than 5 !" +#endif diff --git a/drivers/fsl_dspi.h b/drivers/fsl_dspi.h new file mode 100644 index 0000000..dfbeb3e --- /dev/null +++ b/drivers/fsl_dspi.h @@ -0,0 +1,1181 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_DSPI_H_ +#define _FSL_DSPI_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup dspi_driver + * @{ + */ + + +/********************************************************************************************************************** + * Definitions + *********************************************************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief DSPI driver version 2.1.1. */ +#define FSL_DSPI_DRIVER_VERSION (MAKE_VERSION(2, 1, 1)) +/*@}*/ + +/*! @brief DSPI dummy data if no Tx data.*/ +#define DSPI_DUMMY_DATA (0x00U) /*!< Dummy data used for tx if there is not txData. */ + +/*! @brief Status for the DSPI driver.*/ +enum _dspi_status +{ + kStatus_DSPI_Busy = MAKE_STATUS(kStatusGroup_DSPI, 0), /*!< DSPI transfer is busy.*/ + kStatus_DSPI_Error = MAKE_STATUS(kStatusGroup_DSPI, 1), /*!< DSPI driver error. */ + kStatus_DSPI_Idle = MAKE_STATUS(kStatusGroup_DSPI, 2), /*!< DSPI is idle.*/ + kStatus_DSPI_OutOfRange = MAKE_STATUS(kStatusGroup_DSPI, 3) /*!< DSPI transfer out Of range. */ +}; + +/*! @brief DSPI status flags in SPIx_SR register.*/ +enum _dspi_flags +{ + kDSPI_TxCompleteFlag = SPI_SR_TCF_MASK, /*!< Transfer Complete Flag. */ + kDSPI_EndOfQueueFlag = SPI_SR_EOQF_MASK, /*!< End of Queue Flag.*/ + kDSPI_TxFifoUnderflowFlag = SPI_SR_TFUF_MASK, /*!< Transmit FIFO Underflow Flag.*/ + kDSPI_TxFifoFillRequestFlag = SPI_SR_TFFF_MASK, /*!< Transmit FIFO Fill Flag.*/ + kDSPI_RxFifoOverflowFlag = SPI_SR_RFOF_MASK, /*!< Receive FIFO Overflow Flag.*/ + kDSPI_RxFifoDrainRequestFlag = SPI_SR_RFDF_MASK, /*!< Receive FIFO Drain Flag.*/ + kDSPI_TxAndRxStatusFlag = SPI_SR_TXRXS_MASK, /*!< The module is in Stopped/Running state.*/ + kDSPI_AllStatusFlag = SPI_SR_TCF_MASK | SPI_SR_EOQF_MASK | SPI_SR_TFUF_MASK | SPI_SR_TFFF_MASK | SPI_SR_RFOF_MASK | + SPI_SR_RFDF_MASK | SPI_SR_TXRXS_MASK /*!< All status above.*/ +}; + +/*! @brief DSPI interrupt source.*/ +enum _dspi_interrupt_enable +{ + kDSPI_TxCompleteInterruptEnable = SPI_RSER_TCF_RE_MASK, /*!< TCF interrupt enable.*/ + kDSPI_EndOfQueueInterruptEnable = SPI_RSER_EOQF_RE_MASK, /*!< EOQF interrupt enable.*/ + kDSPI_TxFifoUnderflowInterruptEnable = SPI_RSER_TFUF_RE_MASK, /*!< TFUF interrupt enable.*/ + kDSPI_TxFifoFillRequestInterruptEnable = SPI_RSER_TFFF_RE_MASK, /*!< TFFF interrupt enable, DMA disable.*/ + kDSPI_RxFifoOverflowInterruptEnable = SPI_RSER_RFOF_RE_MASK, /*!< RFOF interrupt enable.*/ + kDSPI_RxFifoDrainRequestInterruptEnable = SPI_RSER_RFDF_RE_MASK, /*!< RFDF interrupt enable, DMA disable.*/ + kDSPI_AllInterruptEnable = SPI_RSER_TCF_RE_MASK | SPI_RSER_EOQF_RE_MASK | SPI_RSER_TFUF_RE_MASK | + SPI_RSER_TFFF_RE_MASK | SPI_RSER_RFOF_RE_MASK | SPI_RSER_RFDF_RE_MASK + /*!< All above interrupts enable.*/ +}; + +/*! @brief DSPI DMA source.*/ +enum _dspi_dma_enable +{ + kDSPI_TxDmaEnable = (SPI_RSER_TFFF_RE_MASK | SPI_RSER_TFFF_DIRS_MASK), /*!< TFFF flag generates DMA requests. + No Tx interrupt request. */ + kDSPI_RxDmaEnable = (SPI_RSER_RFDF_RE_MASK | SPI_RSER_RFDF_DIRS_MASK) /*!< RFDF flag generates DMA requests. + No Rx interrupt request. */ +}; + +/*! @brief DSPI master or slave mode configuration.*/ +typedef enum _dspi_master_slave_mode +{ + kDSPI_Master = 1U, /*!< DSPI peripheral operates in master mode.*/ + kDSPI_Slave = 0U /*!< DSPI peripheral operates in slave mode.*/ +} dspi_master_slave_mode_t; + +/*! + * @brief DSPI Sample Point: Controls when the DSPI master samples SIN in Modified Transfer Format. This field is valid + * only when CPHA bit in CTAR register is 0. + */ +typedef enum _dspi_master_sample_point +{ + kDSPI_SckToSin0Clock = 0U, /*!< 0 system clocks between SCK edge and SIN sample.*/ + kDSPI_SckToSin1Clock = 1U, /*!< 1 system clock between SCK edge and SIN sample.*/ + kDSPI_SckToSin2Clock = 2U /*!< 2 system clocks between SCK edge and SIN sample.*/ +} dspi_master_sample_point_t; + +/*! @brief DSPI Peripheral Chip Select (Pcs) configuration (which Pcs to configure).*/ +typedef enum _dspi_which_pcs_config +{ + kDSPI_Pcs0 = 1U << 0, /*!< Pcs[0] */ + kDSPI_Pcs1 = 1U << 1, /*!< Pcs[1] */ + kDSPI_Pcs2 = 1U << 2, /*!< Pcs[2] */ + kDSPI_Pcs3 = 1U << 3, /*!< Pcs[3] */ + kDSPI_Pcs4 = 1U << 4, /*!< Pcs[4] */ + kDSPI_Pcs5 = 1U << 5 /*!< Pcs[5] */ +} dspi_which_pcs_t; + +/*! @brief DSPI Peripheral Chip Select (Pcs) Polarity configuration.*/ +typedef enum _dspi_pcs_polarity_config +{ + kDSPI_PcsActiveHigh = 0U, /*!< Pcs Active High (idles low). */ + kDSPI_PcsActiveLow = 1U /*!< Pcs Active Low (idles high). */ +} dspi_pcs_polarity_config_t; + +/*! @brief DSPI Peripheral Chip Select (Pcs) Polarity.*/ +enum _dspi_pcs_polarity +{ + kDSPI_Pcs0ActiveLow = 1U << 0, /*!< Pcs0 Active Low (idles high). */ + kDSPI_Pcs1ActiveLow = 1U << 1, /*!< Pcs1 Active Low (idles high). */ + kDSPI_Pcs2ActiveLow = 1U << 2, /*!< Pcs2 Active Low (idles high). */ + kDSPI_Pcs3ActiveLow = 1U << 3, /*!< Pcs3 Active Low (idles high). */ + kDSPI_Pcs4ActiveLow = 1U << 4, /*!< Pcs4 Active Low (idles high). */ + kDSPI_Pcs5ActiveLow = 1U << 5, /*!< Pcs5 Active Low (idles high). */ + kDSPI_PcsAllActiveLow = 0xFFU /*!< Pcs0 to Pcs5 Active Low (idles high). */ +}; + +/*! @brief DSPI clock polarity configuration for a given CTAR.*/ +typedef enum _dspi_clock_polarity +{ + kDSPI_ClockPolarityActiveHigh = 0U, /*!< CPOL=0. Active-high DSPI clock (idles low).*/ + kDSPI_ClockPolarityActiveLow = 1U /*!< CPOL=1. Active-low DSPI clock (idles high).*/ +} dspi_clock_polarity_t; + +/*! @brief DSPI clock phase configuration for a given CTAR.*/ +typedef enum _dspi_clock_phase +{ + kDSPI_ClockPhaseFirstEdge = 0U, /*!< CPHA=0. Data is captured on the leading edge of the SCK and changed on the + following edge.*/ + kDSPI_ClockPhaseSecondEdge = 1U /*!< CPHA=1. Data is changed on the leading edge of the SCK and captured on the + following edge.*/ +} dspi_clock_phase_t; + +/*! @brief DSPI data shifter direction options for a given CTAR.*/ +typedef enum _dspi_shift_direction +{ + kDSPI_MsbFirst = 0U, /*!< Data transfers start with most significant bit.*/ + kDSPI_LsbFirst = 1U /*!< Data transfers start with least significant bit.*/ +} dspi_shift_direction_t; + +/*! @brief DSPI delay type selection.*/ +typedef enum _dspi_delay_type +{ + kDSPI_PcsToSck = 1U, /*!< Pcs-to-SCK delay. */ + kDSPI_LastSckToPcs, /*!< Last SCK edge to Pcs delay. */ + kDSPI_BetweenTransfer /*!< Delay between transfers. */ +} dspi_delay_type_t; + +/*! @brief DSPI Clock and Transfer Attributes Register (CTAR) selection.*/ +typedef enum _dspi_ctar_selection +{ + kDSPI_Ctar0 = 0U, /*!< CTAR0 selection option for master or slave mode, note that CTAR0 and CTAR0_SLAVE are the + same register address. */ + kDSPI_Ctar1 = 1U, /*!< CTAR1 selection option for master mode only. */ + kDSPI_Ctar2 = 2U, /*!< CTAR2 selection option for master mode only , note that some device do not support CTAR2. */ + kDSPI_Ctar3 = 3U, /*!< CTAR3 selection option for master mode only , note that some device do not support CTAR3. */ + kDSPI_Ctar4 = 4U, /*!< CTAR4 selection option for master mode only , note that some device do not support CTAR4. */ + kDSPI_Ctar5 = 5U, /*!< CTAR5 selection option for master mode only , note that some device do not support CTAR5. */ + kDSPI_Ctar6 = 6U, /*!< CTAR6 selection option for master mode only , note that some device do not support CTAR6. */ + kDSPI_Ctar7 = 7U /*!< CTAR7 selection option for master mode only , note that some device do not support CTAR7. */ +} dspi_ctar_selection_t; + +#define DSPI_MASTER_CTAR_SHIFT (0U) /*!< DSPI master CTAR shift macro , internal used. */ +#define DSPI_MASTER_CTAR_MASK (0x0FU) /*!< DSPI master CTAR mask macro , internal used. */ +#define DSPI_MASTER_PCS_SHIFT (4U) /*!< DSPI master PCS shift macro , internal used. */ +#define DSPI_MASTER_PCS_MASK (0xF0U) /*!< DSPI master PCS mask macro , internal used. */ +/*! @brief Can use this enumeration for DSPI master transfer configFlags. */ +enum _dspi_transfer_config_flag_for_master +{ + kDSPI_MasterCtar0 = 0U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR0 setting. */ + kDSPI_MasterCtar1 = 1U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR1 setting. */ + kDSPI_MasterCtar2 = 2U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR2 setting. */ + kDSPI_MasterCtar3 = 3U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR3 setting. */ + kDSPI_MasterCtar4 = 4U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR4 setting. */ + kDSPI_MasterCtar5 = 5U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR5 setting. */ + kDSPI_MasterCtar6 = 6U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR6 setting. */ + kDSPI_MasterCtar7 = 7U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR7 setting. */ + + kDSPI_MasterPcs0 = 0U << DSPI_MASTER_PCS_SHIFT, /*!< DSPI master transfer use PCS0 signal. */ + kDSPI_MasterPcs1 = 1U << DSPI_MASTER_PCS_SHIFT, /*!< DSPI master transfer use PCS1 signal. */ + kDSPI_MasterPcs2 = 2U << DSPI_MASTER_PCS_SHIFT, /*!< DSPI master transfer use PCS2 signal.*/ + kDSPI_MasterPcs3 = 3U << DSPI_MASTER_PCS_SHIFT, /*!< DSPI master transfer use PCS3 signal. */ + kDSPI_MasterPcs4 = 4U << DSPI_MASTER_PCS_SHIFT, /*!< DSPI master transfer use PCS4 signal. */ + kDSPI_MasterPcs5 = 5U << DSPI_MASTER_PCS_SHIFT, /*!< DSPI master transfer use PCS5 signal. */ + + kDSPI_MasterPcsContinuous = 1U << 20, /*!< Is PCS signal continuous. */ + kDSPI_MasterActiveAfterTransfer = 1U << 21, /*!< Is PCS signal active after last frame transfer.*/ +}; + +#define DSPI_SLAVE_CTAR_SHIFT (0U) /*!< DSPI slave CTAR shift macro , internal used. */ +#define DSPI_SLAVE_CTAR_MASK (0x07U) /*!< DSPI slave CTAR mask macro , internal used. */ +/*! @brief Can use this enum for DSPI slave transfer configFlags. */ +enum _dspi_transfer_config_flag_for_slave +{ + kDSPI_SlaveCtar0 = 0U << DSPI_SLAVE_CTAR_SHIFT, /*!< DSPI slave transfer use CTAR0 setting. */ + /*!< DSPI slave can only use PCS0. */ +}; + +/*! @brief DSPI transfer state, which is used for DSPI transactional API state machine. */ +enum _dspi_transfer_state +{ + kDSPI_Idle = 0x0U, /*!< Nothing in the transmitter/receiver. */ + kDSPI_Busy, /*!< Transfer queue is not finished. */ + kDSPI_Error /*!< Transfer error. */ +}; + +/*! @brief DSPI master command date configuration used for SPIx_PUSHR.*/ +typedef struct _dspi_command_data_config +{ + bool isPcsContinuous; /*!< Option to enable the continuous assertion of chip select between transfers.*/ + dspi_ctar_selection_t whichCtar; /*!< The desired Clock and Transfer Attributes + Register (CTAR) to use for CTAS.*/ + dspi_which_pcs_t whichPcs; /*!< The desired PCS signal to use for the data transfer.*/ + bool isEndOfQueue; /*!< Signals that the current transfer is the last in the queue.*/ + bool clearTransferCount; /*!< Clears SPI Transfer Counter (SPI_TCNT) before transmission starts.*/ +} dspi_command_data_config_t; + +/*! @brief DSPI master ctar configuration structure.*/ +typedef struct _dspi_master_ctar_config +{ + uint32_t baudRate; /*!< Baud Rate for DSPI. */ + uint32_t bitsPerFrame; /*!< Bits per frame, minimum 4, maximum 16.*/ + dspi_clock_polarity_t cpol; /*!< Clock polarity. */ + dspi_clock_phase_t cpha; /*!< Clock phase. */ + dspi_shift_direction_t direction; /*!< MSB or LSB data shift direction. */ + + uint32_t pcsToSckDelayInNanoSec; /*!< PCS to SCK delay time with nanosecond , set to 0 sets the minimum + delay. It sets the boundary value if out of range that can be set.*/ + uint32_t lastSckToPcsDelayInNanoSec; /*!< Last SCK to PCS delay time with nanosecond , set to 0 sets the + minimum delay.It sets the boundary value if out of range that can be + set.*/ + uint32_t betweenTransferDelayInNanoSec; /*!< After SCK delay time with nanosecond , set to 0 sets the minimum + delay.It sets the boundary value if out of range that can be set.*/ +} dspi_master_ctar_config_t; + +/*! @brief DSPI master configuration structure.*/ +typedef struct _dspi_master_config +{ + dspi_ctar_selection_t whichCtar; /*!< Desired CTAR to use. */ + dspi_master_ctar_config_t ctarConfig; /*!< Set the ctarConfig to the desired CTAR. */ + + dspi_which_pcs_t whichPcs; /*!< Desired Peripheral Chip Select (pcs). */ + dspi_pcs_polarity_config_t pcsActiveHighOrLow; /*!< Desired PCS active high or low. */ + + bool enableContinuousSCK; /*!< CONT_SCKE, continuous SCK enable . Note that continuous SCK is only + supported for CPHA = 1.*/ + bool enableRxFifoOverWrite; /*!< ROOE, Receive FIFO overflow overwrite enable. ROOE = 0, the incoming + data is ignored, the data from the transfer that generated the overflow + is either ignored. ROOE = 1, the incoming data is shifted in to the + shift to the shift register. */ + + bool enableModifiedTimingFormat; /*!< Enables a modified transfer format to be used if it's true.*/ + dspi_master_sample_point_t samplePoint; /*!< Controls when the module master samples SIN in Modified Transfer + Format. It's valid only when CPHA=0. */ +} dspi_master_config_t; + +/*! @brief DSPI slave ctar configuration structure.*/ +typedef struct _dspi_slave_ctar_config +{ + uint32_t bitsPerFrame; /*!< Bits per frame, minimum 4, maximum 16.*/ + dspi_clock_polarity_t cpol; /*!< Clock polarity. */ + dspi_clock_phase_t cpha; /*!< Clock phase. */ + /*!< Slave only supports MSB , does not support LSB.*/ +} dspi_slave_ctar_config_t; + +/*! @brief DSPI slave configuration structure.*/ +typedef struct _dspi_slave_config +{ + dspi_ctar_selection_t whichCtar; /*!< Desired CTAR to use. */ + dspi_slave_ctar_config_t ctarConfig; /*!< Set the ctarConfig to the desired CTAR. */ + + bool enableContinuousSCK; /*!< CONT_SCKE, continuous SCK enable. Note that continuous SCK is only + supported for CPHA = 1.*/ + bool enableRxFifoOverWrite; /*!< ROOE, Receive FIFO overflow overwrite enable. ROOE = 0, the incoming + data is ignored, the data from the transfer that generated the overflow + is either ignored. ROOE = 1, the incoming data is shifted in to the + shift to the shift register. */ + bool enableModifiedTimingFormat; /*!< Enables a modified transfer format to be used if it's true.*/ + dspi_master_sample_point_t samplePoint; /*!< Controls when the module master samples SIN in Modified Transfer + Format. It's valid only when CPHA=0. */ +} dspi_slave_config_t; + +/*! +* @brief Forward declaration of the _dspi_master_handle typedefs. +*/ +typedef struct _dspi_master_handle dspi_master_handle_t; + +/*! +* @brief Forward declaration of the _dspi_slave_handle typedefs. +*/ +typedef struct _dspi_slave_handle dspi_slave_handle_t; + +/*! + * @brief Completion callback function pointer type. + * + * @param base DSPI peripheral address. + * @param handle Pointer to the handle for the DSPI master. + * @param status Success or error code describing whether the transfer completed. + * @param userData Arbitrary pointer-dataSized value passed from the application. + */ +typedef void (*dspi_master_transfer_callback_t)(SPI_Type *base, + dspi_master_handle_t *handle, + status_t status, + void *userData); +/*! + * @brief Completion callback function pointer type. + * + * @param base DSPI peripheral address. + * @param handle Pointer to the handle for the DSPI slave. + * @param status Success or error code describing whether the transfer completed. + * @param userData Arbitrary pointer-dataSized value passed from the application. + */ +typedef void (*dspi_slave_transfer_callback_t)(SPI_Type *base, + dspi_slave_handle_t *handle, + status_t status, + void *userData); + +/*! @brief DSPI master/slave transfer structure.*/ +typedef struct _dspi_transfer +{ + uint8_t *txData; /*!< Send buffer. */ + uint8_t *rxData; /*!< Receive buffer. */ + volatile size_t dataSize; /*!< Transfer bytes. */ + + uint32_t + configFlags; /*!< Transfer transfer configuration flags , set from _dspi_transfer_config_flag_for_master if the + transfer is used for master or _dspi_transfer_config_flag_for_slave enumeration if the transfer + is used for slave.*/ +} dspi_transfer_t; + +/*! @brief DSPI master transfer handle structure used for transactional API. */ +struct _dspi_master_handle +{ + uint32_t bitsPerFrame; /*!< Desired number of bits per frame. */ + volatile uint32_t command; /*!< Desired data command. */ + volatile uint32_t lastCommand; /*!< Desired last data command. */ + + uint8_t fifoSize; /*!< FIFO dataSize. */ + + volatile bool isPcsActiveAfterTransfer; /*!< Is PCS signal keep active after the last frame transfer.*/ + volatile bool isThereExtraByte; /*!< Is there extra byte.*/ + + uint8_t *volatile txData; /*!< Send buffer. */ + uint8_t *volatile rxData; /*!< Receive buffer. */ + volatile size_t remainingSendByteCount; /*!< Number of bytes remaining to send.*/ + volatile size_t remainingReceiveByteCount; /*!< Number of bytes remaining to receive.*/ + size_t totalByteCount; /*!< Number of transfer bytes*/ + + volatile uint8_t state; /*!< DSPI transfer state , _dspi_transfer_state.*/ + + dspi_master_transfer_callback_t callback; /*!< Completion callback. */ + void *userData; /*!< Callback user data. */ +}; + +/*! @brief DSPI slave transfer handle structure used for transactional API. */ +struct _dspi_slave_handle +{ + uint32_t bitsPerFrame; /*!< Desired number of bits per frame. */ + volatile bool isThereExtraByte; /*!< Is there extra byte.*/ + + uint8_t *volatile txData; /*!< Send buffer. */ + uint8_t *volatile rxData; /*!< Receive buffer. */ + volatile size_t remainingSendByteCount; /*!< Number of bytes remaining to send.*/ + volatile size_t remainingReceiveByteCount; /*!< Number of bytes remaining to receive.*/ + size_t totalByteCount; /*!< Number of transfer bytes*/ + + volatile uint8_t state; /*!< DSPI transfer state.*/ + + volatile uint32_t errorCount; /*!< Error count for slave transfer.*/ + + dspi_slave_transfer_callback_t callback; /*!< Completion callback. */ + void *userData; /*!< Callback user data. */ +}; + +/********************************************************************************************************************** + * API + *********************************************************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif /*_cplusplus*/ + +/*! + * @name Initialization and deinitialization + * @{ + */ + +/*! + * @brief Initializes the DSPI master. + * + * This function initializes the DSPI master configuration. An example use case is as follows: + * @code + * dspi_master_config_t masterConfig; + * masterConfig.whichCtar = kDSPI_Ctar0; + * masterConfig.ctarConfig.baudRate = 500000000; + * masterConfig.ctarConfig.bitsPerFrame = 8; + * masterConfig.ctarConfig.cpol = kDSPI_ClockPolarityActiveHigh; + * masterConfig.ctarConfig.cpha = kDSPI_ClockPhaseFirstEdge; + * masterConfig.ctarConfig.direction = kDSPI_MsbFirst; + * masterConfig.ctarConfig.pcsToSckDelayInNanoSec = 1000000000 / masterConfig.ctarConfig.baudRate ; + * masterConfig.ctarConfig.lastSckToPcsDelayInNanoSec = 1000000000 / masterConfig.ctarConfig.baudRate ; + * masterConfig.ctarConfig.betweenTransferDelayInNanoSec = 1000000000 / masterConfig.ctarConfig.baudRate ; + * masterConfig.whichPcs = kDSPI_Pcs0; + * masterConfig.pcsActiveHighOrLow = kDSPI_PcsActiveLow; + * masterConfig.enableContinuousSCK = false; + * masterConfig.enableRxFifoOverWrite = false; + * masterConfig.enableModifiedTimingFormat = false; + * masterConfig.samplePoint = kDSPI_SckToSin0Clock; + * DSPI_MasterInit(base, &masterConfig, srcClock_Hz); + * @endcode + * + * @param base DSPI peripheral address. + * @param masterConfig Pointer to structure dspi_master_config_t. + * @param srcClock_Hz Module source input clock in Hertz + */ +void DSPI_MasterInit(SPI_Type *base, const dspi_master_config_t *masterConfig, uint32_t srcClock_Hz); + +/*! + * @brief Sets the dspi_master_config_t structure to default values. + * + * The purpose of this API is to get the configuration structure initialized for the DSPI_MasterInit(). + * User may use the initialized structure unchanged in DSPI_MasterInit() or modify the structure + * before calling DSPI_MasterInit(). + * Example: + * @code + * dspi_master_config_t masterConfig; + * DSPI_MasterGetDefaultConfig(&masterConfig); + * @endcode + * @param masterConfig pointer to dspi_master_config_t structure + */ +void DSPI_MasterGetDefaultConfig(dspi_master_config_t *masterConfig); + +/*! + * @brief DSPI slave configuration. + * + * This function initializes the DSPI slave configuration. An example use case is as follows: + * @code + * dspi_slave_config_t slaveConfig; + * slaveConfig->whichCtar = kDSPI_Ctar0; + * slaveConfig->ctarConfig.bitsPerFrame = 8; + * slaveConfig->ctarConfig.cpol = kDSPI_ClockPolarityActiveHigh; + * slaveConfig->ctarConfig.cpha = kDSPI_ClockPhaseFirstEdge; + * slaveConfig->enableContinuousSCK = false; + * slaveConfig->enableRxFifoOverWrite = false; + * slaveConfig->enableModifiedTimingFormat = false; + * slaveConfig->samplePoint = kDSPI_SckToSin0Clock; + * DSPI_SlaveInit(base, &slaveConfig); + * @endcode + * + * @param base DSPI peripheral address. + * @param slaveConfig Pointer to structure dspi_master_config_t. + */ +void DSPI_SlaveInit(SPI_Type *base, const dspi_slave_config_t *slaveConfig); + +/*! + * @brief Sets the dspi_slave_config_t structure to default values. + * + * The purpose of this API is to get the configuration structure initialized for the DSPI_SlaveInit(). + * User may use the initialized structure unchanged in DSPI_SlaveInit(), or modify the structure + * before calling DSPI_SlaveInit(). + * Example: + * @code + * dspi_slave_config_t slaveConfig; + * DSPI_SlaveGetDefaultConfig(&slaveConfig); + * @endcode + * @param slaveConfig pointer to dspi_slave_config_t structure. + */ +void DSPI_SlaveGetDefaultConfig(dspi_slave_config_t *slaveConfig); + +/*! + * @brief De-initializes the DSPI peripheral. Call this API to disable the DSPI clock. + * @param base DSPI peripheral address. + */ +void DSPI_Deinit(SPI_Type *base); + +/*! + * @brief Enables the DSPI peripheral and sets the MCR MDIS to 0. + * + * @param base DSPI peripheral address. + * @param enable pass true to enable module, false to disable module. + */ +static inline void DSPI_Enable(SPI_Type *base, bool enable) +{ + if (enable) + { + base->MCR &= ~SPI_MCR_MDIS_MASK; + } + else + { + base->MCR |= SPI_MCR_MDIS_MASK; + } +} + +/*! + *@} +*/ + +/*! + * @name Status + * @{ + */ + +/*! + * @brief Gets the DSPI status flag state. + * @param base DSPI peripheral address. + * @return The DSPI status(in SR register). + */ +static inline uint32_t DSPI_GetStatusFlags(SPI_Type *base) +{ + return (base->SR); +} + +/*! + * @brief Clears the DSPI status flag. + * + * This function clears the desired status bit by using a write-1-to-clear. The user passes in the base and the + * desired status bit to clear. The list of status bits is defined in the dspi_status_and_interrupt_request_t. The + * function uses these bit positions in its algorithm to clear the desired flag state. + * Example usage: + * @code + * DSPI_ClearStatusFlags(base, kDSPI_TxCompleteFlag|kDSPI_EndOfQueueFlag); + * @endcode + * + * @param base DSPI peripheral address. + * @param statusFlags The status flag , used from type dspi_flags. + */ +static inline void DSPI_ClearStatusFlags(SPI_Type *base, uint32_t statusFlags) +{ + base->SR = statusFlags; /*!< The status flags are cleared by writing 1 (w1c).*/ +} + +/*! + *@} +*/ + +/*! + * @name Interrupts + * @{ + */ + +/*! + * @brief Enables the DSPI interrupts. + * + * This function configures the various interrupt masks of the DSPI. The parameters are base and an interrupt mask. + * Note, for Tx Fill and Rx FIFO drain requests, enable the interrupt request and disable the DMA request. + * + * @code + * DSPI_EnableInterrupts(base, kDSPI_TxCompleteInterruptEnable | kDSPI_EndOfQueueInterruptEnable ); + * @endcode + * + * @param base DSPI peripheral address. + * @param mask The interrupt mask, can use the enum _dspi_interrupt_enable. + */ +void DSPI_EnableInterrupts(SPI_Type *base, uint32_t mask); + +/*! + * @brief Disables the DSPI interrupts. + * + * @code + * DSPI_DisableInterrupts(base, kDSPI_TxCompleteInterruptEnable | kDSPI_EndOfQueueInterruptEnable ); + * @endcode + * + * @param base DSPI peripheral address. + * @param mask The interrupt mask, can use the enum _dspi_interrupt_enable. + */ +static inline void DSPI_DisableInterrupts(SPI_Type *base, uint32_t mask) +{ + base->RSER &= ~mask; +} + +/*! + *@} +*/ + +/*! + * @name DMA Control + * @{ + */ + +/*! + * @brief Enables the DSPI DMA request. + * + * This function configures the Rx and Tx DMA mask of the DSPI. The parameters are base and a DMA mask. + * @code + * DSPI_EnableDMA(base, kDSPI_TxDmaEnable | kDSPI_RxDmaEnable); + * @endcode + * + * @param base DSPI peripheral address. + * @param mask The interrupt mask can use the enum dspi_dma_enable. + */ +static inline void DSPI_EnableDMA(SPI_Type *base, uint32_t mask) +{ + base->RSER |= mask; +} + +/*! + * @brief Disables the DSPI DMA request. + * + * This function configures the Rx and Tx DMA mask of the DSPI. The parameters are base and a DMA mask. + * @code + * SPI_DisableDMA(base, kDSPI_TxDmaEnable | kDSPI_RxDmaEnable); + * @endcode + * + * @param base DSPI peripheral address. + * @param mask The interrupt mask can use the enum dspi_dma_enable. + */ +static inline void DSPI_DisableDMA(SPI_Type *base, uint32_t mask) +{ + base->RSER &= ~mask; +} + +/*! + * @brief Gets the DSPI master PUSHR data register address for the DMA operation. + * + * This function gets the DSPI master PUSHR data register address because this value is needed for the DMA operation. + * + * @param base DSPI peripheral address. + * @return The DSPI master PUSHR data register address. + */ +static inline uint32_t DSPI_MasterGetTxRegisterAddress(SPI_Type *base) +{ + return (uint32_t) & (base->PUSHR); +} + +/*! + * @brief Gets the DSPI slave PUSHR data register address for the DMA operation. + * + * This function gets the DSPI slave PUSHR data register address as this value is needed for the DMA operation. + * + * @param base DSPI peripheral address. + * @return The DSPI slave PUSHR data register address. + */ +static inline uint32_t DSPI_SlaveGetTxRegisterAddress(SPI_Type *base) +{ + return (uint32_t) & (base->PUSHR_SLAVE); +} + +/*! + * @brief Gets the DSPI POPR data register address for the DMA operation. + * + * This function gets the DSPI POPR data register address as this value is needed for the DMA operation. + * + * @param base DSPI peripheral address. + * @return The DSPI POPR data register address. + */ +static inline uint32_t DSPI_GetRxRegisterAddress(SPI_Type *base) +{ + return (uint32_t) & (base->POPR); +} + +/*! + *@} +*/ + +/*! + * @name Bus Operations + * @{ + */ + +/*! + * @brief Configures the DSPI for master or slave. + * + * @param base DSPI peripheral address. + * @param mode Mode setting (master or slave) of type dspi_master_slave_mode_t. + */ +static inline void DSPI_SetMasterSlaveMode(SPI_Type *base, dspi_master_slave_mode_t mode) +{ + base->MCR = (base->MCR & (~SPI_MCR_MSTR_MASK)) | SPI_MCR_MSTR(mode); +} + +/*! + * @brief Returns whether the DSPI module is in master mode. + * + * @param base DSPI peripheral address. + * @return Returns true if the module is in master mode or false if the module is in slave mode. + */ +static inline bool DSPI_IsMaster(SPI_Type *base) +{ + return (bool)((base->MCR) & SPI_MCR_MSTR_MASK); +} +/*! + * @brief Starts the DSPI transfers and clears HALT bit in MCR. + * + * This function sets the module to begin data transfer in either master or slave mode. + * + * @param base DSPI peripheral address. + */ +static inline void DSPI_StartTransfer(SPI_Type *base) +{ + base->MCR &= ~SPI_MCR_HALT_MASK; +} +/*! + * @brief Stops (halts) DSPI transfers and sets HALT bit in MCR. + * + * This function stops data transfers in either master or slave mode. + * + * @param base DSPI peripheral address. + */ +static inline void DSPI_StopTransfer(SPI_Type *base) +{ + base->MCR |= SPI_MCR_HALT_MASK; +} + +/*! + * @brief Enables (or disables) the DSPI FIFOs. + * + * This function allows the caller to disable/enable the Tx and Rx FIFOs (independently). + * Note that to disable, the caller must pass in a logic 0 (false) for the particular FIFO configuration. To enable, + * the caller must pass in a logic 1 (true). + * + * @param base DSPI peripheral address. + * @param enableTxFifo Disables (false) the TX FIFO, else enables (true) the TX FIFO + * @param enableRxFifo Disables (false) the RX FIFO, else enables (true) the RX FIFO + */ +static inline void DSPI_SetFifoEnable(SPI_Type *base, bool enableTxFifo, bool enableRxFifo) +{ + base->MCR = (base->MCR & (~(SPI_MCR_DIS_RXF_MASK | SPI_MCR_DIS_TXF_MASK))) | SPI_MCR_DIS_TXF(!enableTxFifo) | + SPI_MCR_DIS_RXF(!enableRxFifo); +} + +/*! + * @brief Flushes the DSPI FIFOs. + * + * @param base DSPI peripheral address. + * @param flushTxFifo Flushes (true) the Tx FIFO, else do not flush (false) the Tx FIFO + * @param flushRxFifo Flushes (true) the Rx FIFO, else do not flush (false) the Rx FIFO + */ +static inline void DSPI_FlushFifo(SPI_Type *base, bool flushTxFifo, bool flushRxFifo) +{ + base->MCR = (base->MCR & (~(SPI_MCR_CLR_TXF_MASK | SPI_MCR_CLR_RXF_MASK))) | SPI_MCR_CLR_TXF(flushTxFifo) | + SPI_MCR_CLR_RXF(flushRxFifo); +} + +/*! + * @brief Configures the DSPI peripheral chip select polarity simultaneously. + * For example, PCS0 and PCS1 set to active low and other PCS set to active high. Note that the number of + * PCSs is specific to the device. + * @code + * DSPI_SetAllPcsPolarity(base, kDSPI_Pcs0ActiveLow | kDSPI_Pcs1ActiveLow); + @endcode + * @param base DSPI peripheral address. + * @param mask The PCS polarity mask , can use the enum _dspi_pcs_polarity. + */ +static inline void DSPI_SetAllPcsPolarity(SPI_Type *base, uint32_t mask) +{ + base->MCR = (base->MCR & ~SPI_MCR_PCSIS_MASK) | SPI_MCR_PCSIS(mask); +} + +/*! + * @brief Sets the DSPI baud rate in bits per second. + * + * This function takes in the desired baudRate_Bps (baud rate) and calculates the nearest possible baud rate without + * exceeding the desired baud rate, and returns the calculated baud rate in bits-per-second. It requires that the + * caller also provide the frequency of the module source clock (in Hertz). + * + * @param base DSPI peripheral address. + * @param whichCtar The desired Clock and Transfer Attributes Register (CTAR) of the type dspi_ctar_selection_t + * @param baudRate_Bps The desired baud rate in bits per second + * @param srcClock_Hz Module source input clock in Hertz + * @return The actual calculated baud rate + */ +uint32_t DSPI_MasterSetBaudRate(SPI_Type *base, + dspi_ctar_selection_t whichCtar, + uint32_t baudRate_Bps, + uint32_t srcClock_Hz); + +/*! + * @brief Manually configures the delay prescaler and scaler for a particular CTAR. + * + * This function configures the PCS to SCK delay pre-scalar (PcsSCK) and scalar (CSSCK), after SCK delay pre-scalar + * (PASC) and scalar (ASC), and the delay after transfer pre-scalar (PDT)and scalar (DT). + * + * These delay names are available in type dspi_delay_type_t. + * + * The user passes the delay to configure along with the prescaler and scaler value. + * This allows the user to directly set the prescaler/scaler values if they have pre-calculated them or if they simply + * wish to manually increment either value. + * + * @param base DSPI peripheral address. + * @param whichCtar The desired Clock and Transfer Attributes Register (CTAR) of type dspi_ctar_selection_t. + * @param prescaler The prescaler delay value (can be an integer 0, 1, 2, or 3). + * @param scaler The scaler delay value (can be any integer between 0 to 15). + * @param whichDelay The desired delay to configure, must be of type dspi_delay_type_t + */ +void DSPI_MasterSetDelayScaler( + SPI_Type *base, dspi_ctar_selection_t whichCtar, uint32_t prescaler, uint32_t scaler, dspi_delay_type_t whichDelay); + +/*! + * @brief Calculates the delay prescaler and scaler based on the desired delay input in nanoseconds. + * + * This function calculates the values for: + * PCS to SCK delay pre-scalar (PCSSCK) and scalar (CSSCK), or + * After SCK delay pre-scalar (PASC) and scalar (ASC), or + * Delay after transfer pre-scalar (PDT)and scalar (DT). + * + * These delay names are available in type dspi_delay_type_t. + * + * The user passes which delay they want to configure along with the desired delay value in nanoseconds. The function + * calculates the values needed for the prescaler and scaler and returning the actual calculated delay as an exact + * delay match may not be possible. In this case, the closest match is calculated without going below the desired + * delay value input. + * It is possible to input a very large delay value that exceeds the capability of the part, in which case the maximum + * supported delay is returned. The higher-level peripheral driver alerts the user of an out of range delay + * input. + * + * @param base DSPI peripheral address. + * @param whichCtar The desired Clock and Transfer Attributes Register (CTAR) of type dspi_ctar_selection_t. + * @param whichDelay The desired delay to configure, must be of type dspi_delay_type_t + * @param srcClock_Hz Module source input clock in Hertz + * @param delayTimeInNanoSec The desired delay value in nanoseconds. + * @return The actual calculated delay value. + */ +uint32_t DSPI_MasterSetDelayTimes(SPI_Type *base, + dspi_ctar_selection_t whichCtar, + dspi_delay_type_t whichDelay, + uint32_t srcClock_Hz, + uint32_t delayTimeInNanoSec); + +/*! + * @brief Writes data into the data buffer for master mode. + * + * In master mode, the 16-bit data is appended to the 16-bit command info. The command portion + * provides characteristics of the data such as the optional continuous chip select + * operation between transfers, the desired Clock and Transfer Attributes register to use for the + * associated SPI frame, the desired PCS signal to use for the data transfer, whether the current + * transfer is the last in the queue, and whether to clear the transfer count (normally needed when + * sending the first frame of a data packet). This is an example: + * @code + * dspi_command_data_config_t commandConfig; + * commandConfig.isPcsContinuous = true; + * commandConfig.whichCtar = kDSPICtar0; + * commandConfig.whichPcs = kDSPIPcs0; + * commandConfig.clearTransferCount = false; + * commandConfig.isEndOfQueue = false; + * DSPI_MasterWriteData(base, &commandConfig, dataWord); + @endcode + * + * @param base DSPI peripheral address. + * @param command Pointer to command structure. + * @param data The data word to be sent. + */ +static inline void DSPI_MasterWriteData(SPI_Type *base, dspi_command_data_config_t *command, uint16_t data) +{ + base->PUSHR = SPI_PUSHR_CONT(command->isPcsContinuous) | SPI_PUSHR_CTAS(command->whichCtar) | + SPI_PUSHR_PCS(command->whichPcs) | SPI_PUSHR_EOQ(command->isEndOfQueue) | + SPI_PUSHR_CTCNT(command->clearTransferCount) | SPI_PUSHR_TXDATA(data); +} + +/*! + * @brief Sets the dspi_command_data_config_t structure to default values. + * + * The purpose of this API is to get the configuration structure initialized for use in the DSPI_MasterWrite_xx(). + * User may use the initialized structure unchanged in DSPI_MasterWrite_xx() or modify the structure + * before calling DSPI_MasterWrite_xx(). + * Example: + * @code + * dspi_command_data_config_t command; + * DSPI_GetDefaultDataCommandConfig(&command); + * @endcode + * @param command pointer to dspi_command_data_config_t structure. + */ +void DSPI_GetDefaultDataCommandConfig(dspi_command_data_config_t *command); + +/*! + * @brief Writes data into the data buffer master mode and waits till complete to return. + * + * In master mode, the 16-bit data is appended to the 16-bit command info. The command portion + * provides characteristics of the data such as the optional continuous chip select + * operation between transfers, the desired Clock and Transfer Attributes register to use for the + * associated SPI frame, the desired PCS signal to use for the data transfer, whether the current + * transfer is the last in the queue, and whether to clear the transfer count (normally needed when + * sending the first frame of a data packet). This is an example: + * @code + * dspi_command_config_t commandConfig; + * commandConfig.isPcsContinuous = true; + * commandConfig.whichCtar = kDSPICtar0; + * commandConfig.whichPcs = kDSPIPcs1; + * commandConfig.clearTransferCount = false; + * commandConfig.isEndOfQueue = false; + * DSPI_MasterWriteDataBlocking(base, &commandConfig, dataWord); + * @endcode + * + * Note that this function does not return until after the transmit is complete. Also note that the DSPI must be + * enabled and running to transmit data (MCR[MDIS] & [HALT] = 0). Because the SPI is a synchronous protocol, + * receive data is available when transmit completes. + * + * @param base DSPI peripheral address. + * @param command Pointer to command structure. + * @param data The data word to be sent. + */ +void DSPI_MasterWriteDataBlocking(SPI_Type *base, dspi_command_data_config_t *command, uint16_t data); + +/*! + * @brief Returns the DSPI command word formatted to the PUSHR data register bit field. + * + * This function allows the caller to pass in the data command structure and returns the command word formatted + * according to the DSPI PUSHR register bit field placement. The user can then "OR" the returned command word with the + * desired data to send and use the function DSPI_HAL_WriteCommandDataMastermode or + * DSPI_HAL_WriteCommandDataMastermodeBlocking to write the entire 32-bit command data word to the PUSHR. This helps + * improve performance in cases where the command structure is constant. For example, the user calls this function + * before starting a transfer to generate the command word. When they are ready to transmit the data, they OR + * this formatted command word with the desired data to transmit. This process increases transmit performance when + * compared to calling send functions such as DSPI_HAL_WriteDataMastermode which format the command word each time a + * data word is to be sent. + * + * @param command Pointer to command structure. + * @return The command word formatted to the PUSHR data register bit field. + */ +static inline uint32_t DSPI_MasterGetFormattedCommand(dspi_command_data_config_t *command) +{ + /* Format the 16-bit command word according to the PUSHR data register bit field*/ + return (uint32_t)(SPI_PUSHR_CONT(command->isPcsContinuous) | SPI_PUSHR_CTAS(command->whichCtar) | + SPI_PUSHR_PCS(command->whichPcs) | SPI_PUSHR_EOQ(command->isEndOfQueue) | + SPI_PUSHR_CTCNT(command->clearTransferCount)); +} + +/*! + * @brief Writes a 32-bit data word (16-bit command appended with 16-bit data) into the data + * buffer, master mode and waits till complete to return. + * + * In this function, the user must append the 16-bit data to the 16-bit command info then provide the total 32-bit word + * as the data to send. + * The command portion provides characteristics of the data such as the optional continuous chip select operation +* between + * transfers, the desired Clock and Transfer Attributes register to use for the associated SPI frame, the desired PCS + * signal to use for the data transfer, whether the current transfer is the last in the queue, and whether to clear the + * transfer count (normally needed when sending the first frame of a data packet). The user is responsible for + * appending this command with the data to send. This is an example: + * @code + * dataWord = <16-bit command> | <16-bit data>; + * DSPI_HAL_WriteCommandDataMastermodeBlocking(base, dataWord); + * @endcode + * + * Note that this function does not return until after the transmit is complete. Also note that the DSPI must be + * enabled and running to transmit data (MCR[MDIS] & [HALT] = 0). + * Because the SPI is a synchronous protocol, the receive data is available when transmit completes. + * + * For a blocking polling transfer, see methods below. + * Option 1: +* uint32_t command_to_send = DSPI_MasterGetFormattedCommand(&command); +* uint32_t data0 = command_to_send | data_need_to_send_0; +* uint32_t data1 = command_to_send | data_need_to_send_1; +* uint32_t data2 = command_to_send | data_need_to_send_2; +* +* DSPI_MasterWriteCommandDataBlocking(base,data0); +* DSPI_MasterWriteCommandDataBlocking(base,data1); +* DSPI_MasterWriteCommandDataBlocking(base,data2); +* +* Option 2: +* DSPI_MasterWriteDataBlocking(base,&command,data_need_to_send_0); +* DSPI_MasterWriteDataBlocking(base,&command,data_need_to_send_1); +* DSPI_MasterWriteDataBlocking(base,&command,data_need_to_send_2); +* + * @param base DSPI peripheral address. + * @param data The data word (command and data combined) to be sent + */ +void DSPI_MasterWriteCommandDataBlocking(SPI_Type *base, uint32_t data); + +/*! + * @brief Writes data into the data buffer in slave mode. + * + * In slave mode, up to 16-bit words may be written. + * + * @param base DSPI peripheral address. + * @param data The data to send. + */ +static inline void DSPI_SlaveWriteData(SPI_Type *base, uint32_t data) +{ + base->PUSHR_SLAVE = data; +} + +/*! + * @brief Writes data into the data buffer in slave mode, waits till data was transmitted, and returns. + * + * In slave mode, up to 16-bit words may be written. The function first clears the transmit complete flag, writes data + * into data register, and finally waits until the data is transmitted. + * + * @param base DSPI peripheral address. + * @param data The data to send. + */ +void DSPI_SlaveWriteDataBlocking(SPI_Type *base, uint32_t data); + +/*! + * @brief Reads data from the data buffer. + * + * @param base DSPI peripheral address. + * @return The data from the read data buffer. + */ +static inline uint32_t DSPI_ReadData(SPI_Type *base) +{ + return (base->POPR); +} + +/*! + *@} +*/ + +/*! + * @name Transactional + * @{ + */ +/*Transactional APIs*/ + +/*! + * @brief Initializes the DSPI master handle. + * + * This function initializes the DSPI handle which can be used for other DSPI transactional APIs. Usually, for a + * specified DSPI instance, call this API once to get the initialized handle. + * + * @param base DSPI peripheral base address. + * @param handle DSPI handle pointer to dspi_master_handle_t. + * @param callback dspi callback. + * @param userData callback function parameter. + */ +void DSPI_MasterTransferCreateHandle(SPI_Type *base, + dspi_master_handle_t *handle, + dspi_master_transfer_callback_t callback, + void *userData); + +/*! + * @brief DSPI master transfer data using polling. + * + * This function transfers data with polling. This is a blocking function, which does not return until all transfers + * have been + * completed. + * + * @param base DSPI peripheral base address. + * @param transfer pointer to dspi_transfer_t structure. + * @return status of status_t. + */ +status_t DSPI_MasterTransferBlocking(SPI_Type *base, dspi_transfer_t *transfer); + +/*! + * @brief DSPI master transfer data using interrupts. + * + * This function transfers data using interrupts. This is a non-blocking function, which returns right away. When all + data + * have been transferred, the callback function is called. + + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_master_handle_t structure which stores the transfer state. + * @param transfer pointer to dspi_transfer_t structure. + * @return status of status_t. + */ +status_t DSPI_MasterTransferNonBlocking(SPI_Type *base, dspi_master_handle_t *handle, dspi_transfer_t *transfer); + +/*! + * @brief Gets the master transfer count. + * + * This function gets the master transfer count. + * + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_master_handle_t structure which stores the transfer state. + * @param count Number of bytes transferred so far by the non-blocking transaction. + * @return status of status_t. + */ +status_t DSPI_MasterTransferGetCount(SPI_Type *base, dspi_master_handle_t *handle, size_t *count); + +/*! + * @brief DSPI master aborts transfer using an interrupt. + * + * This function aborts a transfer using an interrupt. + * + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_master_handle_t structure which stores the transfer state. + */ +void DSPI_MasterTransferAbort(SPI_Type *base, dspi_master_handle_t *handle); + +/*! + * @brief DSPI Master IRQ handler function. + * + * This function processes the DSPI transmit and receive IRQ. + + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_master_handle_t structure which stores the transfer state. + */ +void DSPI_MasterTransferHandleIRQ(SPI_Type *base, dspi_master_handle_t *handle); + +/*! + * @brief Initializes the DSPI slave handle. + * + * This function initializes the DSPI handle, which can be used for other DSPI transactional APIs. Usually, for a + * specified DSPI instance, call this API once to get the initialized handle. + * + * @param handle DSPI handle pointer to dspi_slave_handle_t. + * @param base DSPI peripheral base address. + * @param callback DSPI callback. + * @param userData callback function parameter. + */ +void DSPI_SlaveTransferCreateHandle(SPI_Type *base, + dspi_slave_handle_t *handle, + dspi_slave_transfer_callback_t callback, + void *userData); + +/*! + * @brief DSPI slave transfers data using an interrupt. + * + * This function transfers data using an interrupt. This is a non-blocking function, which returns right away. When all + * data + * have been transferred, the callback function is called. + * + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_slave_handle_t structure which stores the transfer state. + * @param transfer pointer to dspi_transfer_t structure. + * @return status of status_t. + */ +status_t DSPI_SlaveTransferNonBlocking(SPI_Type *base, dspi_slave_handle_t *handle, dspi_transfer_t *transfer); + +/*! + * @brief Gets the slave transfer count. + * + * This function gets the slave transfer count. + * + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_master_handle_t structure which stores the transfer state. + * @param count Number of bytes transferred so far by the non-blocking transaction. + * @return status of status_t. + */ +status_t DSPI_SlaveTransferGetCount(SPI_Type *base, dspi_slave_handle_t *handle, size_t *count); + +/*! + * @brief DSPI slave aborts a transfer using an interrupt. + * + * This function aborts transfer using an interrupt. + * + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_slave_handle_t structure which stores the transfer state. + */ +void DSPI_SlaveTransferAbort(SPI_Type *base, dspi_slave_handle_t *handle); + +/*! + * @brief DSPI Master IRQ handler function. + * + * This function processes the DSPI transmit and receive IRQ. + * + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_slave_handle_t structure which stores the transfer state. + */ +void DSPI_SlaveTransferHandleIRQ(SPI_Type *base, dspi_slave_handle_t *handle); + +/*! + *@} +*/ + +#if defined(__cplusplus) +} +#endif /*_cplusplus*/ + /*! + *@} + */ + +#endif /*_FSL_DSPI_H_*/ diff --git a/drivers/fsl_dspi_edma.c b/drivers/fsl_dspi_edma.c new file mode 100644 index 0000000..a1c2002 --- /dev/null +++ b/drivers/fsl_dspi_edma.c @@ -0,0 +1,1263 @@ +/* +* Copyright (c) 2015, Freescale Semiconductor, Inc. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without modification, +* are permitted provided that the following conditions are met: +* +* o Redistributions of source code must retain the above copyright notice, this list +* of conditions and the following disclaimer. +* +* o Redistributions in binary form must reproduce the above copyright notice, this +* list of conditions and the following disclaimer in the documentation and/or +* other materials provided with the distribution. +* +* o Neither the name of Freescale Semiconductor, Inc. nor the names of its +* contributors may be used to endorse or promote products derived from this +* software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR +* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "fsl_dspi_edma.h" + +/*********************************************************************************************************************** +* Definitons +***********************************************************************************************************************/ + +/*! +* @brief Structure definition for dspi_master_edma_private_handle_t. The structure is private. +*/ +typedef struct _dspi_master_edma_private_handle +{ + SPI_Type *base; /*!< DSPI peripheral base address. */ + dspi_master_edma_handle_t *handle; /*!< dspi_master_edma_handle_t handle */ +} dspi_master_edma_private_handle_t; + +/*! +* @brief Structure definition for dspi_slave_edma_private_handle_t. The structure is private. +*/ +typedef struct _dspi_slave_edma_private_handle +{ + SPI_Type *base; /*!< DSPI peripheral base address. */ + dspi_slave_edma_handle_t *handle; /*!< dspi_master_edma_handle_t handle */ +} dspi_slave_edma_private_handle_t; + +/*********************************************************************************************************************** +* Prototypes +***********************************************************************************************************************/ +/*! +* @brief EDMA_DspiMasterCallback after the DSPI master transfer completed by using EDMA. +* This is not a public API as it is called from other driver functions. +*/ +static void EDMA_DspiMasterCallback(edma_handle_t *edmaHandle, + void *g_dspiEdmaPrivateHandle, + bool transferDone, + uint32_t tcds); + +/*! +* @brief EDMA_DspiSlaveCallback after the DSPI slave transfer completed by using EDMA. +* This is not a public API as it is called from other driver functions. +*/ +static void EDMA_DspiSlaveCallback(edma_handle_t *edmaHandle, + void *g_dspiEdmaPrivateHandle, + bool transferDone, + uint32_t tcds); +/*! +* @brief Get instance number for DSPI module. +* +* This is not a public API and it's extern from fsl_dspi.c. +* +* @param base DSPI peripheral base address +*/ +extern uint32_t DSPI_GetInstance(SPI_Type *base); + +/*********************************************************************************************************************** +* Variables +***********************************************************************************************************************/ + +/*! @brief Pointers to dspi edma handles for each instance. */ +static dspi_master_edma_private_handle_t s_dspiMasterEdmaPrivateHandle[FSL_FEATURE_SOC_DSPI_COUNT]; +static dspi_slave_edma_private_handle_t s_dspiSlaveEdmaPrivateHandle[FSL_FEATURE_SOC_DSPI_COUNT]; + +/*********************************************************************************************************************** +* Code +***********************************************************************************************************************/ + +void DSPI_MasterTransferCreateHandleEDMA(SPI_Type *base, + dspi_master_edma_handle_t *handle, + dspi_master_edma_transfer_callback_t callback, + void *userData, + edma_handle_t *edmaRxRegToRxDataHandle, + edma_handle_t *edmaTxDataToIntermediaryHandle, + edma_handle_t *edmaIntermediaryToTxRegHandle) +{ + assert(handle); + + /* Zero the handle. */ + memset(handle, 0, sizeof(*handle)); + + uint32_t instance = DSPI_GetInstance(base); + + s_dspiMasterEdmaPrivateHandle[instance].base = base; + s_dspiMasterEdmaPrivateHandle[instance].handle = handle; + + handle->callback = callback; + handle->userData = userData; + + handle->edmaRxRegToRxDataHandle = edmaRxRegToRxDataHandle; + handle->edmaTxDataToIntermediaryHandle = edmaTxDataToIntermediaryHandle; + handle->edmaIntermediaryToTxRegHandle = edmaIntermediaryToTxRegHandle; +} + +status_t DSPI_MasterTransferEDMA(SPI_Type *base, dspi_master_edma_handle_t *handle, dspi_transfer_t *transfer) +{ + assert(handle && transfer); + + /* If the transfer count is zero, then return immediately.*/ + if (transfer->dataSize == 0) + { + return kStatus_InvalidArgument; + } + + /* If both send buffer and receive buffer is null */ + if ((!(transfer->txData)) && (!(transfer->rxData))) + { + return kStatus_InvalidArgument; + } + + /* Check that we're not busy.*/ + if (handle->state == kDSPI_Busy) + { + return kStatus_DSPI_Busy; + } + + uint32_t instance = DSPI_GetInstance(base); + uint16_t wordToSend = 0; + uint8_t dummyData = DSPI_DUMMY_DATA; + uint8_t dataAlreadyFed = 0; + uint8_t dataFedMax = 2; + + uint32_t rxAddr = DSPI_GetRxRegisterAddress(base); + uint32_t txAddr = DSPI_MasterGetTxRegisterAddress(base); + + edma_tcd_t *softwareTCD = (edma_tcd_t *)((uint32_t)(&handle->dspiSoftwareTCD[1]) & (~0x1FU)); + + edma_transfer_config_t transferConfigA; + edma_transfer_config_t transferConfigB; + edma_transfer_config_t transferConfigC; + + handle->txBuffIfNull = ((uint32_t)DSPI_DUMMY_DATA << 8) | DSPI_DUMMY_DATA; + + handle->state = kDSPI_Busy; + + dspi_command_data_config_t commandStruct; + DSPI_StopTransfer(base); + DSPI_FlushFifo(base, true, true); + DSPI_ClearStatusFlags(base, kDSPI_AllStatusFlag); + + commandStruct.whichPcs = + (dspi_which_pcs_t)(1U << ((transfer->configFlags & DSPI_MASTER_PCS_MASK) >> DSPI_MASTER_PCS_SHIFT)); + commandStruct.isEndOfQueue = false; + commandStruct.clearTransferCount = false; + commandStruct.whichCtar = + (dspi_ctar_selection_t)((transfer->configFlags & DSPI_MASTER_CTAR_MASK) >> DSPI_MASTER_CTAR_SHIFT); + commandStruct.isPcsContinuous = (bool)(transfer->configFlags & kDSPI_MasterPcsContinuous); + handle->command = DSPI_MasterGetFormattedCommand(&(commandStruct)); + + commandStruct.isEndOfQueue = true; + commandStruct.isPcsContinuous = (bool)(transfer->configFlags & kDSPI_MasterActiveAfterTransfer); + handle->lastCommand = DSPI_MasterGetFormattedCommand(&(commandStruct)); + + handle->bitsPerFrame = ((base->CTAR[commandStruct.whichCtar] & SPI_CTAR_FMSZ_MASK) >> SPI_CTAR_FMSZ_SHIFT) + 1; + + if ((base->MCR & SPI_MCR_DIS_RXF_MASK) || (base->MCR & SPI_MCR_DIS_TXF_MASK)) + { + handle->fifoSize = 1; + } + else + { + handle->fifoSize = FSL_FEATURE_DSPI_FIFO_SIZEn(base); + } + handle->txData = transfer->txData; + handle->rxData = transfer->rxData; + handle->remainingSendByteCount = transfer->dataSize; + handle->remainingReceiveByteCount = transfer->dataSize; + handle->totalByteCount = transfer->dataSize; + + /* this limits the amount of data we can transfer due to the linked channel. + * The max bytes is 511 if 8-bit/frame or 1022 if 16-bit/frame + */ + if (handle->bitsPerFrame > 8) + { + if (transfer->dataSize > 1022) + { + return kStatus_DSPI_OutOfRange; + } + } + else + { + if (transfer->dataSize > 511) + { + return kStatus_DSPI_OutOfRange; + } + } + + DSPI_DisableDMA(base, kDSPI_RxDmaEnable | kDSPI_TxDmaEnable); + + EDMA_SetCallback(handle->edmaRxRegToRxDataHandle, EDMA_DspiMasterCallback, + &s_dspiMasterEdmaPrivateHandle[instance]); + + handle->isThereExtraByte = false; + if (handle->bitsPerFrame > 8) + { + if (handle->remainingSendByteCount % 2 == 1) + { + handle->remainingSendByteCount++; + handle->remainingReceiveByteCount--; + handle->isThereExtraByte = true; + } + } + + /*If dspi has separate dma request , prepare the first data in "intermediary" . + else (dspi has shared dma request) , send first 2 data if there is fifo or send first 1 data if there is no fifo*/ + if (1 == FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base)) + { + /* For DSPI instances with separate RX/TX DMA requests, we'll use the TX DMA request to + * trigger the TX DMA channel and RX DMA request to trigger the RX DMA channel + */ + + /*Prepare the firt data*/ + if (handle->bitsPerFrame > 8) + { + /* If it's the last word */ + if (handle->remainingSendByteCount <= 2) + { + if (handle->txData) + { + if (handle->isThereExtraByte) + { + wordToSend = *(handle->txData) | ((uint32_t)dummyData << 8); + } + else + { + wordToSend = *(handle->txData); + ++handle->txData; /* increment to next data byte */ + wordToSend |= (unsigned)(*(handle->txData)) << 8U; + } + } + else + { + wordToSend = ((uint32_t)dummyData << 8) | dummyData; + } + handle->lastCommand = (handle->lastCommand & 0xffff0000U) | wordToSend; + } + else /* For all words except the last word , frame > 8bits */ + { + if (handle->txData) + { + wordToSend = *(handle->txData); + ++handle->txData; /* increment to next data byte */ + wordToSend |= (unsigned)(*(handle->txData)) << 8U; + ++handle->txData; /* increment to next data byte */ + } + else + { + wordToSend = ((uint32_t)dummyData << 8) | dummyData; + } + handle->command = (handle->command & 0xffff0000U) | wordToSend; + } + } + else /* Optimized for bits/frame less than or equal to one byte. */ + { + if (handle->txData) + { + wordToSend = *(handle->txData); + ++handle->txData; /* increment to next data word*/ + } + else + { + wordToSend = dummyData; + } + + if (handle->remainingSendByteCount == 1) + { + handle->lastCommand = (handle->lastCommand & 0xffff0000U) | wordToSend; + } + else + { + handle->command = (handle->command & 0xffff0000U) | wordToSend; + } + } + } + + else /*dspi has shared dma request*/ + + { + /* For DSPI instances with shared RX/TX DMA requests, we'll use the RX DMA request to + * trigger ongoing transfers and will link to the TX DMA channel from the RX DMA channel. + */ + + /* If bits/frame is greater than one byte */ + if (handle->bitsPerFrame > 8) + { + while (DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag) + { + if (handle->remainingSendByteCount <= 2) + { + if (handle->txData) + { + if (handle->isThereExtraByte) + { + wordToSend = *(handle->txData) | ((uint32_t)dummyData << 8); + } + else + { + wordToSend = *(handle->txData); + ++handle->txData; + wordToSend |= (unsigned)(*(handle->txData)) << 8U; + } + } + else + { + wordToSend = ((uint32_t)dummyData << 8) | dummyData; + ; + } + handle->remainingSendByteCount = 0; + base->PUSHR = (handle->lastCommand & 0xffff0000U) | wordToSend; + } + /* For all words except the last word */ + else + { + if (handle->txData) + { + wordToSend = *(handle->txData); + ++handle->txData; + wordToSend |= (unsigned)(*(handle->txData)) << 8U; + ++handle->txData; + } + else + { + wordToSend = ((uint32_t)dummyData << 8) | dummyData; + ; + } + handle->remainingSendByteCount -= 2; + base->PUSHR = (handle->command & 0xffff0000U) | wordToSend; + } + + /* Try to clear the TFFF; if the TX FIFO is full this will clear */ + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + + dataAlreadyFed += 2; + + /* exit loop if send count is zero, else update local variables for next loop */ + if ((handle->remainingSendByteCount == 0) || (dataAlreadyFed == (dataFedMax * 2))) + { + break; + } + } /* End of TX FIFO fill while loop */ + } + else /* Optimized for bits/frame less than or equal to one byte. */ + { + while (DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag) + { + if (handle->txData) + { + wordToSend = *(handle->txData); + ++handle->txData; + } + else + { + wordToSend = dummyData; + } + + if (handle->remainingSendByteCount == 1) + { + base->PUSHR = (handle->lastCommand & 0xffff0000U) | wordToSend; + } + else + { + base->PUSHR = (handle->command & 0xffff0000U) | wordToSend; + } + + /* Try to clear the TFFF; if the TX FIFO is full this will clear */ + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + + --handle->remainingSendByteCount; + + dataAlreadyFed++; + + /* exit loop if send count is zero, else update local variables for next loop */ + if ((handle->remainingSendByteCount == 0) || (dataAlreadyFed == dataFedMax)) + { + break; + } + } /* End of TX FIFO fill while loop */ + } + } + + /***channel_A *** used for carry the data from Rx_Data_Register(POPR) to User_Receive_Buffer*/ + EDMA_ResetChannel(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel); + + transferConfigA.srcAddr = (uint32_t)rxAddr; + transferConfigA.srcOffset = 0; + + if (handle->rxData) + { + transferConfigA.destAddr = (uint32_t) & (handle->rxData[0]); + transferConfigA.destOffset = 1; + } + else + { + transferConfigA.destAddr = (uint32_t) & (handle->rxBuffIfNull); + transferConfigA.destOffset = 0; + } + + transferConfigA.destTransferSize = kEDMA_TransferSize1Bytes; + + if (handle->bitsPerFrame <= 8) + { + transferConfigA.srcTransferSize = kEDMA_TransferSize1Bytes; + transferConfigA.minorLoopBytes = 1; + transferConfigA.majorLoopCounts = handle->remainingReceiveByteCount; + } + else + { + transferConfigA.srcTransferSize = kEDMA_TransferSize2Bytes; + transferConfigA.minorLoopBytes = 2; + transferConfigA.majorLoopCounts = handle->remainingReceiveByteCount / 2; + } + EDMA_SetTransferConfig(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel, + &transferConfigA, NULL); + EDMA_EnableChannelInterrupts(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel, + kEDMA_MajorInterruptEnable); + + /***channel_B *** used for carry the data from User_Send_Buffer to "intermediary" because the SPIx_PUSHR should + write the 32bits at once time . Then use channel_C to carry the "intermediary" to SPIx_PUSHR. Note that the + SPIx_PUSHR upper 16 bits are the "command" and the low 16bits are data */ + EDMA_ResetChannel(handle->edmaTxDataToIntermediaryHandle->base, handle->edmaTxDataToIntermediaryHandle->channel); + + if (handle->remainingSendByteCount > 0) + { + if (handle->txData) + { + transferConfigB.srcAddr = (uint32_t)(handle->txData); + transferConfigB.srcOffset = 1; + } + else + { + transferConfigB.srcAddr = (uint32_t)(&handle->txBuffIfNull); + transferConfigB.srcOffset = 0; + } + + transferConfigB.destAddr = (uint32_t)(&handle->command); + transferConfigB.destOffset = 0; + + transferConfigB.srcTransferSize = kEDMA_TransferSize1Bytes; + + if (handle->bitsPerFrame <= 8) + { + transferConfigB.destTransferSize = kEDMA_TransferSize1Bytes; + transferConfigB.minorLoopBytes = 1; + + if (1 == FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base)) + { + /*already prepared the first data in "intermediary" , so minus 1 */ + transferConfigB.majorLoopCounts = handle->remainingSendByteCount - 1; + } + else + { + /*Only enable channel_B minorlink to channel_C , so need to add one count due to the last time is + majorlink , the majorlink would not trigger the channel_C*/ + transferConfigB.majorLoopCounts = handle->remainingSendByteCount + 1; + } + } + else + { + transferConfigB.destTransferSize = kEDMA_TransferSize2Bytes; + transferConfigB.minorLoopBytes = 2; + if (1 == FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base)) + { + /*already prepared the first data in "intermediary" , so minus 1 */ + transferConfigB.majorLoopCounts = handle->remainingSendByteCount / 2 - 1; + } + else + { + /*Only enable channel_B minorlink to channel_C , so need to add one count due to the last time is + * majorlink*/ + transferConfigB.majorLoopCounts = handle->remainingSendByteCount / 2 + 1; + } + } + + EDMA_SetTransferConfig(handle->edmaTxDataToIntermediaryHandle->base, + handle->edmaTxDataToIntermediaryHandle->channel, &transferConfigB, NULL); + } + + /***channel_C ***carry the "intermediary" to SPIx_PUSHR. used the edma Scatter Gather function on channel_C to + handle the last data */ + EDMA_ResetChannel(handle->edmaIntermediaryToTxRegHandle->base, handle->edmaIntermediaryToTxRegHandle->channel); + + if (((handle->remainingSendByteCount > 0) && (1 != FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base))) || + ((((handle->remainingSendByteCount > 1) && (handle->bitsPerFrame <= 8)) || + ((handle->remainingSendByteCount > 2) && (handle->bitsPerFrame > 8))) && + (1 == FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base)))) + { + if (handle->txData) + { + uint32_t bufferIndex = 0; + + if (1 == FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base)) + { + if (handle->bitsPerFrame <= 8) + { + bufferIndex = handle->remainingSendByteCount - 1; + } + else + { + bufferIndex = handle->remainingSendByteCount - 2; + } + } + else + { + bufferIndex = handle->remainingSendByteCount; + } + + if (handle->bitsPerFrame <= 8) + { + handle->lastCommand = (handle->lastCommand & 0xffff0000U) | handle->txData[bufferIndex - 1]; + } + else + { + if (handle->isThereExtraByte) + { + handle->lastCommand = (handle->lastCommand & 0xffff0000U) | handle->txData[bufferIndex - 2] | + ((uint32_t)dummyData << 8); + } + else + { + handle->lastCommand = (handle->lastCommand & 0xffff0000U) | + ((uint32_t)handle->txData[bufferIndex - 1] << 8) | + handle->txData[bufferIndex - 2]; + } + } + } + else + { + if (handle->bitsPerFrame <= 8) + { + wordToSend = dummyData; + } + else + { + wordToSend = ((uint32_t)dummyData << 8) | dummyData; + } + handle->lastCommand = (handle->lastCommand & 0xffff0000U) | wordToSend; + } + } + + if ((1 == FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base)) || + ((1 != FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base)) && (handle->remainingSendByteCount > 0))) + { + transferConfigC.srcAddr = (uint32_t) & (handle->lastCommand); + transferConfigC.destAddr = (uint32_t)txAddr; + transferConfigC.srcTransferSize = kEDMA_TransferSize4Bytes; + transferConfigC.destTransferSize = kEDMA_TransferSize4Bytes; + transferConfigC.srcOffset = 0; + transferConfigC.destOffset = 0; + transferConfigC.minorLoopBytes = 4; + transferConfigC.majorLoopCounts = 1; + + EDMA_TcdReset(softwareTCD); + EDMA_TcdSetTransferConfig(softwareTCD, &transferConfigC, NULL); + } + + if (((handle->remainingSendByteCount > 1) && (handle->bitsPerFrame <= 8)) || + ((handle->remainingSendByteCount > 2) && (handle->bitsPerFrame > 8))) + { + transferConfigC.srcAddr = (uint32_t)(&(handle->command)); + transferConfigC.destAddr = (uint32_t)txAddr; + + transferConfigC.srcTransferSize = kEDMA_TransferSize4Bytes; + transferConfigC.destTransferSize = kEDMA_TransferSize4Bytes; + transferConfigC.srcOffset = 0; + transferConfigC.destOffset = 0; + transferConfigC.minorLoopBytes = 4; + + if (handle->bitsPerFrame <= 8) + { + transferConfigC.majorLoopCounts = handle->remainingSendByteCount - 1; + } + else + { + transferConfigC.majorLoopCounts = handle->remainingSendByteCount / 2 - 1; + } + + EDMA_SetTransferConfig(handle->edmaIntermediaryToTxRegHandle->base, + handle->edmaIntermediaryToTxRegHandle->channel, &transferConfigC, softwareTCD); + EDMA_EnableAutoStopRequest(handle->edmaIntermediaryToTxRegHandle->base, + handle->edmaIntermediaryToTxRegHandle->channel, false); + } + else + { + EDMA_SetTransferConfig(handle->edmaIntermediaryToTxRegHandle->base, + handle->edmaIntermediaryToTxRegHandle->channel, &transferConfigC, NULL); + } + + /*Start the EDMA channel_A , channel_B , channel_C transfer*/ + EDMA_StartTransfer(handle->edmaRxRegToRxDataHandle); + EDMA_StartTransfer(handle->edmaTxDataToIntermediaryHandle); + EDMA_StartTransfer(handle->edmaIntermediaryToTxRegHandle); + + /*Set channel priority*/ + uint8_t channelPriorityLow = handle->edmaRxRegToRxDataHandle->channel; + uint8_t channelPriorityMid = handle->edmaTxDataToIntermediaryHandle->channel; + uint8_t channelPriorityHigh = handle->edmaIntermediaryToTxRegHandle->channel; + uint8_t t = 0; + if (channelPriorityLow > channelPriorityMid) + { + t = channelPriorityLow; + channelPriorityLow = channelPriorityMid; + channelPriorityMid = t; + } + + if (channelPriorityLow > channelPriorityHigh) + { + t = channelPriorityLow; + channelPriorityLow = channelPriorityHigh; + channelPriorityHigh = t; + } + + if (channelPriorityMid > channelPriorityHigh) + { + t = channelPriorityMid; + channelPriorityMid = channelPriorityHigh; + channelPriorityHigh = t; + } + edma_channel_Preemption_config_t preemption_config_t; + preemption_config_t.enableChannelPreemption = true; + preemption_config_t.enablePreemptAbility = true; + preemption_config_t.channelPriority = channelPriorityLow; + + if (1 != FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base)) + { + EDMA_SetChannelPreemptionConfig(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel, + &preemption_config_t); + + preemption_config_t.channelPriority = channelPriorityMid; + EDMA_SetChannelPreemptionConfig(handle->edmaTxDataToIntermediaryHandle->base, + handle->edmaTxDataToIntermediaryHandle->channel, &preemption_config_t); + + preemption_config_t.channelPriority = channelPriorityHigh; + EDMA_SetChannelPreemptionConfig(handle->edmaIntermediaryToTxRegHandle->base, + handle->edmaIntermediaryToTxRegHandle->channel, &preemption_config_t); + } + else + { + EDMA_SetChannelPreemptionConfig(handle->edmaIntermediaryToTxRegHandle->base, + handle->edmaIntermediaryToTxRegHandle->channel, &preemption_config_t); + + preemption_config_t.channelPriority = channelPriorityMid; + EDMA_SetChannelPreemptionConfig(handle->edmaTxDataToIntermediaryHandle->base, + handle->edmaTxDataToIntermediaryHandle->channel, &preemption_config_t); + + preemption_config_t.channelPriority = channelPriorityHigh; + EDMA_SetChannelPreemptionConfig(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel, + &preemption_config_t); + } + + /*Set the channel link. + For DSPI instances with shared RX/TX DMA requests: Rx DMA request -> channel_A -> channel_B-> channel_C. + For DSPI instances with separate RX and TX DMA requests: + Rx DMA request -> channel_A + Tx DMA request -> channel_C -> channel_B . (so need prepare the first data in "intermediary" before the DMA + transfer and then channel_B is used to prepare the next data to "intermediary" ) */ + if (1 == FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base)) + { + /*if there is Tx DMA request , carry the 32bits data (handle->command) to PUSHR first , then link to channelB + to prepare the next 32bits data (User_send_buffer to handle->command) */ + if (handle->remainingSendByteCount > 1) + { + EDMA_SetChannelLink(handle->edmaIntermediaryToTxRegHandle->base, + handle->edmaIntermediaryToTxRegHandle->channel, kEDMA_MinorLink, + handle->edmaTxDataToIntermediaryHandle->channel); + } + + DSPI_EnableDMA(base, kDSPI_RxDmaEnable | kDSPI_TxDmaEnable); + } + else + { + if (handle->remainingSendByteCount > 0) + { + EDMA_SetChannelLink(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel, + kEDMA_MinorLink, handle->edmaTxDataToIntermediaryHandle->channel); + + if (handle->isThereExtraByte) + { + EDMA_SetChannelLink(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel, + kEDMA_MajorLink, handle->edmaTxDataToIntermediaryHandle->channel); + } + + EDMA_SetChannelLink(handle->edmaTxDataToIntermediaryHandle->base, + handle->edmaTxDataToIntermediaryHandle->channel, kEDMA_MinorLink, + handle->edmaIntermediaryToTxRegHandle->channel); + } + + DSPI_EnableDMA(base, kDSPI_RxDmaEnable); + } + + DSPI_StartTransfer(base); + + return kStatus_Success; +} + +static void EDMA_DspiMasterCallback(edma_handle_t *edmaHandle, + void *g_dspiEdmaPrivateHandle, + bool transferDone, + uint32_t tcds) +{ + dspi_master_edma_private_handle_t *dspiEdmaPrivateHandle; + + dspiEdmaPrivateHandle = (dspi_master_edma_private_handle_t *)g_dspiEdmaPrivateHandle; + + uint32_t dataReceived; + + DSPI_DisableDMA((dspiEdmaPrivateHandle->base), kDSPI_RxDmaEnable | kDSPI_TxDmaEnable); + + if (dspiEdmaPrivateHandle->handle->isThereExtraByte) + { + while (!((dspiEdmaPrivateHandle->base)->SR & SPI_SR_RFDF_MASK)) + { + } + dataReceived = (dspiEdmaPrivateHandle->base)->POPR; + if (dspiEdmaPrivateHandle->handle->rxData) + { + (dspiEdmaPrivateHandle->handle->rxData[dspiEdmaPrivateHandle->handle->totalByteCount - 1]) = dataReceived; + } + } + + if (dspiEdmaPrivateHandle->handle->callback) + { + dspiEdmaPrivateHandle->handle->callback(dspiEdmaPrivateHandle->base, dspiEdmaPrivateHandle->handle, + kStatus_Success, dspiEdmaPrivateHandle->handle->userData); + } + + dspiEdmaPrivateHandle->handle->state = kDSPI_Idle; +} + +void DSPI_MasterTransferAbortEDMA(SPI_Type *base, dspi_master_edma_handle_t *handle) +{ + DSPI_StopTransfer(base); + + DSPI_DisableDMA(base, kDSPI_RxDmaEnable | kDSPI_TxDmaEnable); + + EDMA_AbortTransfer(handle->edmaRxRegToRxDataHandle); + EDMA_AbortTransfer(handle->edmaTxDataToIntermediaryHandle); + EDMA_AbortTransfer(handle->edmaIntermediaryToTxRegHandle); + + handle->state = kDSPI_Idle; +} + +status_t DSPI_MasterTransferGetCountEDMA(SPI_Type *base, dspi_master_edma_handle_t *handle, size_t *count) +{ + assert(handle); + + if (!count) + { + return kStatus_InvalidArgument; + } + + /* Catch when there is not an active transfer. */ + if (handle->state != kDSPI_Busy) + { + *count = 0; + return kStatus_NoTransferInProgress; + } + + size_t bytes; + + bytes = EDMA_GetRemainingBytes(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel); + + *count = handle->totalByteCount - bytes; + + return kStatus_Success; +} + +void DSPI_SlaveTransferCreateHandleEDMA(SPI_Type *base, + dspi_slave_edma_handle_t *handle, + dspi_slave_edma_transfer_callback_t callback, + void *userData, + edma_handle_t *edmaRxRegToRxDataHandle, + edma_handle_t *edmaTxDataToTxRegHandle) +{ + assert(handle); + + /* Zero the handle. */ + memset(handle, 0, sizeof(*handle)); + + uint32_t instance = DSPI_GetInstance(base); + + s_dspiSlaveEdmaPrivateHandle[instance].base = base; + s_dspiSlaveEdmaPrivateHandle[instance].handle = handle; + + handle->callback = callback; + handle->userData = userData; + + handle->edmaRxRegToRxDataHandle = edmaRxRegToRxDataHandle; + handle->edmaTxDataToTxRegHandle = edmaTxDataToTxRegHandle; +} + +status_t DSPI_SlaveTransferEDMA(SPI_Type *base, dspi_slave_edma_handle_t *handle, dspi_transfer_t *transfer) +{ + assert(handle && transfer); + + /* If send/receive length is zero */ + if (transfer->dataSize == 0) + { + return kStatus_InvalidArgument; + } + + /* If both send buffer and receive buffer is null */ + if ((!(transfer->txData)) && (!(transfer->rxData))) + { + return kStatus_InvalidArgument; + } + + /* Check that we're not busy.*/ + if (handle->state == kDSPI_Busy) + { + return kStatus_DSPI_Busy; + } + + edma_tcd_t *softwareTCD = (edma_tcd_t *)((uint32_t)(&handle->dspiSoftwareTCD[1]) & (~0x1FU)); + + uint32_t instance = DSPI_GetInstance(base); + uint8_t whichCtar = (transfer->configFlags & DSPI_SLAVE_CTAR_MASK) >> DSPI_SLAVE_CTAR_SHIFT; + handle->bitsPerFrame = + (((base->CTAR_SLAVE[whichCtar]) & SPI_CTAR_SLAVE_FMSZ_MASK) >> SPI_CTAR_SLAVE_FMSZ_SHIFT) + 1; + + /* If using a shared RX/TX DMA request, then this limits the amount of data we can transfer + * due to the linked channel. The max bytes is 511 if 8-bit/frame or 1022 if 16-bit/frame + */ + if (1 != FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base)) + { + if (handle->bitsPerFrame > 8) + { + if (transfer->dataSize > 1022) + { + return kStatus_DSPI_OutOfRange; + } + } + else + { + if (transfer->dataSize > 511) + { + return kStatus_DSPI_OutOfRange; + } + } + } + + if ((handle->bitsPerFrame > 8) && (transfer->dataSize < 2)) + { + return kStatus_InvalidArgument; + } + + EDMA_SetCallback(handle->edmaRxRegToRxDataHandle, EDMA_DspiSlaveCallback, &s_dspiSlaveEdmaPrivateHandle[instance]); + + handle->state = kDSPI_Busy; + + /* Store transfer information */ + handle->txData = transfer->txData; + handle->rxData = transfer->rxData; + handle->remainingSendByteCount = transfer->dataSize; + handle->remainingReceiveByteCount = transfer->dataSize; + handle->totalByteCount = transfer->dataSize; + handle->errorCount = 0; + + handle->isThereExtraByte = false; + if (handle->bitsPerFrame > 8) + { + if (handle->remainingSendByteCount % 2 == 1) + { + handle->remainingSendByteCount++; + handle->remainingReceiveByteCount--; + handle->isThereExtraByte = true; + } + } + + uint16_t wordToSend = 0; + uint8_t dummyData = DSPI_DUMMY_DATA; + uint8_t dataAlreadyFed = 0; + uint8_t dataFedMax = 2; + + uint32_t rxAddr = DSPI_GetRxRegisterAddress(base); + uint32_t txAddr = DSPI_SlaveGetTxRegisterAddress(base); + + edma_transfer_config_t transferConfigA; + edma_transfer_config_t transferConfigC; + + DSPI_StopTransfer(base); + + DSPI_FlushFifo(base, true, true); + DSPI_ClearStatusFlags(base, kDSPI_AllStatusFlag); + + DSPI_DisableDMA(base, kDSPI_RxDmaEnable | kDSPI_TxDmaEnable); + + DSPI_StartTransfer(base); + + /*if dspi has separate dma request , need not prepare data first . + else (dspi has shared dma request) , send first 2 data into fifo if there is fifo or send first 1 data to + slaveGetTxRegister if there is no fifo*/ + if (1 != FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base)) + { + /* For DSPI instances with shared RX/TX DMA requests, we'll use the RX DMA request to + * trigger ongoing transfers and will link to the TX DMA channel from the RX DMA channel. + */ + /* If bits/frame is greater than one byte */ + if (handle->bitsPerFrame > 8) + { + while (DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag) + { + if (handle->txData) + { + wordToSend = *(handle->txData); + ++handle->txData; /* Increment to next data byte */ + if ((handle->remainingSendByteCount == 2) && (handle->isThereExtraByte)) + { + wordToSend |= (unsigned)(dummyData) << 8U; + ++handle->txData; /* Increment to next data byte */ + } + else + { + wordToSend |= (unsigned)(*(handle->txData)) << 8U; + ++handle->txData; /* Increment to next data byte */ + } + } + else + { + wordToSend = ((uint32_t)dummyData << 8) | dummyData; + } + handle->remainingSendByteCount -= 2; /* decrement remainingSendByteCount by 2 */ + base->PUSHR_SLAVE = wordToSend; + + /* Try to clear the TFFF; if the TX FIFO is full this will clear */ + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + + dataAlreadyFed += 2; + + /* Exit loop if send count is zero, else update local variables for next loop */ + if ((handle->remainingSendByteCount == 0) || (dataAlreadyFed == (dataFedMax * 2))) + { + break; + } + } /* End of TX FIFO fill while loop */ + } + else /* Optimized for bits/frame less than or equal to one byte. */ + { + while (DSPI_GetStatusFlags(base) & kDSPI_TxFifoFillRequestFlag) + { + if (handle->txData) + { + wordToSend = *(handle->txData); + /* Increment to next data word*/ + ++handle->txData; + } + else + { + wordToSend = dummyData; + } + + base->PUSHR_SLAVE = wordToSend; + + /* Try to clear the TFFF; if the TX FIFO is full this will clear */ + DSPI_ClearStatusFlags(base, kDSPI_TxFifoFillRequestFlag); + /* Decrement remainingSendByteCount*/ + --handle->remainingSendByteCount; + + dataAlreadyFed++; + + /* Exit loop if send count is zero, else update local variables for next loop */ + if ((handle->remainingSendByteCount == 0) || (dataAlreadyFed == dataFedMax)) + { + break; + } + } /* End of TX FIFO fill while loop */ + } + } + + /***channel_A *** used for carry the data from Rx_Data_Register(POPR) to User_Receive_Buffer*/ + if (handle->remainingReceiveByteCount > 0) + { + EDMA_ResetChannel(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel); + + transferConfigA.srcAddr = (uint32_t)rxAddr; + transferConfigA.srcOffset = 0; + + if (handle->rxData) + { + transferConfigA.destAddr = (uint32_t) & (handle->rxData[0]); + transferConfigA.destOffset = 1; + } + else + { + transferConfigA.destAddr = (uint32_t) & (handle->rxBuffIfNull); + transferConfigA.destOffset = 0; + } + + transferConfigA.destTransferSize = kEDMA_TransferSize1Bytes; + + if (handle->bitsPerFrame <= 8) + { + transferConfigA.srcTransferSize = kEDMA_TransferSize1Bytes; + transferConfigA.minorLoopBytes = 1; + transferConfigA.majorLoopCounts = handle->remainingReceiveByteCount; + } + else + { + transferConfigA.srcTransferSize = kEDMA_TransferSize2Bytes; + transferConfigA.minorLoopBytes = 2; + transferConfigA.majorLoopCounts = handle->remainingReceiveByteCount / 2; + } + EDMA_SetTransferConfig(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel, + &transferConfigA, NULL); + EDMA_EnableChannelInterrupts(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel, + kEDMA_MajorInterruptEnable); + } + + if (handle->remainingSendByteCount > 0) + { + /***channel_C *** used for carry the data from User_Send_Buffer to Tx_Data_Register(PUSHR_SLAVE)*/ + EDMA_ResetChannel(handle->edmaTxDataToTxRegHandle->base, handle->edmaTxDataToTxRegHandle->channel); + + /*If there is extra byte , it would use the */ + if (handle->isThereExtraByte) + { + if (handle->txData) + { + handle->txLastData = + handle->txData[handle->remainingSendByteCount - 2] | ((uint32_t)DSPI_DUMMY_DATA << 8); + } + else + { + handle->txLastData = DSPI_DUMMY_DATA | ((uint32_t)DSPI_DUMMY_DATA << 8); + } + transferConfigC.srcAddr = (uint32_t)(&(handle->txLastData)); + transferConfigC.destAddr = (uint32_t)txAddr; + transferConfigC.srcTransferSize = kEDMA_TransferSize4Bytes; + transferConfigC.destTransferSize = kEDMA_TransferSize4Bytes; + transferConfigC.srcOffset = 0; + transferConfigC.destOffset = 0; + transferConfigC.minorLoopBytes = 4; + transferConfigC.majorLoopCounts = 1; + + EDMA_TcdReset(softwareTCD); + EDMA_TcdSetTransferConfig(softwareTCD, &transferConfigC, NULL); + } + + /*Set another transferConfigC*/ + if ((handle->isThereExtraByte) && (handle->remainingSendByteCount == 2)) + { + EDMA_SetTransferConfig(handle->edmaTxDataToTxRegHandle->base, handle->edmaTxDataToTxRegHandle->channel, + &transferConfigC, NULL); + } + else + { + transferConfigC.destAddr = (uint32_t)txAddr; + transferConfigC.destOffset = 0; + + if (handle->txData) + { + transferConfigC.srcAddr = (uint32_t)(&(handle->txData[0])); + transferConfigC.srcOffset = 1; + } + else + { + transferConfigC.srcAddr = (uint32_t)(&handle->txBuffIfNull); + transferConfigC.srcOffset = 0; + if (handle->bitsPerFrame <= 8) + { + handle->txBuffIfNull = DSPI_DUMMY_DATA; + } + else + { + handle->txBuffIfNull = (DSPI_DUMMY_DATA << 8) | DSPI_DUMMY_DATA; + } + } + + transferConfigC.srcTransferSize = kEDMA_TransferSize1Bytes; + + if (handle->bitsPerFrame <= 8) + { + transferConfigC.destTransferSize = kEDMA_TransferSize1Bytes; + transferConfigC.minorLoopBytes = 1; + transferConfigC.majorLoopCounts = handle->remainingSendByteCount; + } + else + { + transferConfigC.destTransferSize = kEDMA_TransferSize2Bytes; + transferConfigC.minorLoopBytes = 2; + if (handle->isThereExtraByte) + { + transferConfigC.majorLoopCounts = handle->remainingSendByteCount / 2 - 1; + } + else + { + transferConfigC.majorLoopCounts = handle->remainingSendByteCount / 2; + } + } + + if (handle->isThereExtraByte) + { + EDMA_SetTransferConfig(handle->edmaTxDataToTxRegHandle->base, handle->edmaTxDataToTxRegHandle->channel, + &transferConfigC, softwareTCD); + EDMA_EnableAutoStopRequest(handle->edmaTxDataToTxRegHandle->base, + handle->edmaTxDataToTxRegHandle->channel, false); + } + else + { + EDMA_SetTransferConfig(handle->edmaTxDataToTxRegHandle->base, handle->edmaTxDataToTxRegHandle->channel, + &transferConfigC, NULL); + } + + EDMA_StartTransfer(handle->edmaTxDataToTxRegHandle); + } + } + + EDMA_StartTransfer(handle->edmaRxRegToRxDataHandle); + + /*Set channel priority*/ + uint8_t channelPriorityLow = handle->edmaRxRegToRxDataHandle->channel; + uint8_t channelPriorityHigh = handle->edmaTxDataToTxRegHandle->channel; + uint8_t t = 0; + + if (channelPriorityLow > channelPriorityHigh) + { + t = channelPriorityLow; + channelPriorityLow = channelPriorityHigh; + channelPriorityHigh = t; + } + + edma_channel_Preemption_config_t preemption_config_t; + preemption_config_t.enableChannelPreemption = true; + preemption_config_t.enablePreemptAbility = true; + preemption_config_t.channelPriority = channelPriorityLow; + + if (1 != FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base)) + { + EDMA_SetChannelPreemptionConfig(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel, + &preemption_config_t); + + preemption_config_t.channelPriority = channelPriorityHigh; + EDMA_SetChannelPreemptionConfig(handle->edmaTxDataToTxRegHandle->base, handle->edmaTxDataToTxRegHandle->channel, + &preemption_config_t); + } + else + { + EDMA_SetChannelPreemptionConfig(handle->edmaTxDataToTxRegHandle->base, handle->edmaTxDataToTxRegHandle->channel, + &preemption_config_t); + + preemption_config_t.channelPriority = channelPriorityHigh; + EDMA_SetChannelPreemptionConfig(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel, + &preemption_config_t); + } + + /*Set the channel link. + For DSPI instances with shared RX/TX DMA requests: Rx DMA request -> channel_A -> channel_C. + For DSPI instances with separate RX and TX DMA requests: + Rx DMA request -> channel_A + Tx DMA request -> channel_C */ + if (1 != FSL_FEATURE_DSPI_HAS_SEPARATE_DMA_RX_TX_REQn(base)) + { + if (handle->remainingSendByteCount > 0) + { + EDMA_SetChannelLink(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel, + kEDMA_MinorLink, handle->edmaTxDataToTxRegHandle->channel); + } + DSPI_EnableDMA(base, kDSPI_RxDmaEnable); + } + else + { + DSPI_EnableDMA(base, kDSPI_RxDmaEnable | kDSPI_TxDmaEnable); + } + + return kStatus_Success; +} + +static void EDMA_DspiSlaveCallback(edma_handle_t *edmaHandle, + void *g_dspiEdmaPrivateHandle, + bool transferDone, + uint32_t tcds) +{ + dspi_slave_edma_private_handle_t *dspiEdmaPrivateHandle; + + dspiEdmaPrivateHandle = (dspi_slave_edma_private_handle_t *)g_dspiEdmaPrivateHandle; + + uint32_t dataReceived; + + DSPI_DisableDMA((dspiEdmaPrivateHandle->base), kDSPI_RxDmaEnable | kDSPI_TxDmaEnable); + + if (dspiEdmaPrivateHandle->handle->isThereExtraByte) + { + while (!((dspiEdmaPrivateHandle->base)->SR & SPI_SR_RFDF_MASK)) + { + } + dataReceived = (dspiEdmaPrivateHandle->base)->POPR; + if (dspiEdmaPrivateHandle->handle->rxData) + { + (dspiEdmaPrivateHandle->handle->rxData[dspiEdmaPrivateHandle->handle->totalByteCount - 1]) = dataReceived; + } + } + + if (dspiEdmaPrivateHandle->handle->callback) + { + dspiEdmaPrivateHandle->handle->callback(dspiEdmaPrivateHandle->base, dspiEdmaPrivateHandle->handle, + kStatus_Success, dspiEdmaPrivateHandle->handle->userData); + } + + dspiEdmaPrivateHandle->handle->state = kDSPI_Idle; +} + +void DSPI_SlaveTransferAbortEDMA(SPI_Type *base, dspi_slave_edma_handle_t *handle) +{ + DSPI_StopTransfer(base); + + DSPI_DisableDMA(base, kDSPI_RxDmaEnable | kDSPI_TxDmaEnable); + + EDMA_AbortTransfer(handle->edmaRxRegToRxDataHandle); + EDMA_AbortTransfer(handle->edmaTxDataToTxRegHandle); + + handle->state = kDSPI_Idle; +} + +status_t DSPI_SlaveTransferGetCountEDMA(SPI_Type *base, dspi_slave_edma_handle_t *handle, size_t *count) +{ + assert(handle); + + if (!count) + { + return kStatus_InvalidArgument; + } + + /* Catch when there is not an active transfer. */ + if (handle->state != kDSPI_Busy) + { + *count = 0; + return kStatus_NoTransferInProgress; + } + + size_t bytes; + + bytes = EDMA_GetRemainingBytes(handle->edmaRxRegToRxDataHandle->base, handle->edmaRxRegToRxDataHandle->channel); + + *count = handle->totalByteCount - bytes; + + return kStatus_Success; +} diff --git a/drivers/fsl_dspi_edma.h b/drivers/fsl_dspi_edma.h new file mode 100644 index 0000000..643efad --- /dev/null +++ b/drivers/fsl_dspi_edma.h @@ -0,0 +1,282 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_DSPI_EDMA_H_ +#define _FSL_DSPI_EDMA_H_ + +#include "fsl_dspi.h" +#include "fsl_edma.h" +/*! + * @addtogroup dspi_edma_driver + * @{ + */ + + +/*********************************************************************************************************************** + * Definitions + **********************************************************************************************************************/ + +/*! +* @brief Forward declaration of the DSPI eDMA master handle typedefs. +*/ +typedef struct _dspi_master_edma_handle dspi_master_edma_handle_t; + +/*! +* @brief Forward declaration of the DSPI eDMA slave handle typedefs. +*/ +typedef struct _dspi_slave_edma_handle dspi_slave_edma_handle_t; + +/*! + * @brief Completion callback function pointer type. + * + * @param base DSPI peripheral base address. + * @param handle Pointer to the handle for the DSPI master. + * @param status Success or error code describing whether the transfer completed. + * @param userData Arbitrary pointer-dataSized value passed from the application. + */ +typedef void (*dspi_master_edma_transfer_callback_t)(SPI_Type *base, + dspi_master_edma_handle_t *handle, + status_t status, + void *userData); +/*! + * @brief Completion callback function pointer type. + * + * @param base DSPI peripheral base address. + * @param handle Pointer to the handle for the DSPI slave. + * @param status Success or error code describing whether the transfer completed. + * @param userData Arbitrary pointer-dataSized value passed from the application. + */ +typedef void (*dspi_slave_edma_transfer_callback_t)(SPI_Type *base, + dspi_slave_edma_handle_t *handle, + status_t status, + void *userData); + +/*! @brief DSPI master eDMA transfer handle structure used for transactional API. */ +struct _dspi_master_edma_handle +{ + uint32_t bitsPerFrame; /*!< Desired number of bits per frame. */ + volatile uint32_t command; /*!< Desired data command. */ + volatile uint32_t lastCommand; /*!< Desired last data command. */ + + uint8_t fifoSize; /*!< FIFO dataSize. */ + + volatile bool isPcsActiveAfterTransfer; /*!< Is PCS signal keep active after the last frame transfer.*/ + volatile bool isThereExtraByte; /*!< Is there extra byte.*/ + + uint8_t *volatile txData; /*!< Send buffer. */ + uint8_t *volatile rxData; /*!< Receive buffer. */ + volatile size_t remainingSendByteCount; /*!< Number of bytes remaining to send.*/ + volatile size_t remainingReceiveByteCount; /*!< Number of bytes remaining to receive.*/ + size_t totalByteCount; /*!< Number of transfer bytes*/ + + uint32_t rxBuffIfNull; /*!< Used if there is not rxData for DMA purpose.*/ + uint32_t txBuffIfNull; /*!< Used if there is not txData for DMA purpose.*/ + + volatile uint8_t state; /*!< DSPI transfer state , _dspi_transfer_state.*/ + + dspi_master_edma_transfer_callback_t callback; /*!< Completion callback. */ + void *userData; /*!< Callback user data. */ + + edma_handle_t *edmaRxRegToRxDataHandle; /*!<edma_handle_t handle point used for RxReg to RxData buff*/ + edma_handle_t *edmaTxDataToIntermediaryHandle; /*!<edma_handle_t handle point used for TxData to Intermediary*/ + edma_handle_t *edmaIntermediaryToTxRegHandle; /*!<edma_handle_t handle point used for Intermediary to TxReg*/ + + edma_tcd_t dspiSoftwareTCD[2]; /*!<SoftwareTCD , internal used*/ +}; + +/*! @brief DSPI slave eDMA transfer handle structure used for transactional API.*/ +struct _dspi_slave_edma_handle +{ + uint32_t bitsPerFrame; /*!< Desired number of bits per frame. */ + volatile bool isThereExtraByte; /*!< Is there extra byte.*/ + + uint8_t *volatile txData; /*!< Send buffer. */ + uint8_t *volatile rxData; /*!< Receive buffer. */ + volatile size_t remainingSendByteCount; /*!< Number of bytes remaining to send.*/ + volatile size_t remainingReceiveByteCount; /*!< Number of bytes remaining to receive.*/ + size_t totalByteCount; /*!< Number of transfer bytes*/ + + uint32_t rxBuffIfNull; /*!< Used if there is not rxData for DMA purpose.*/ + uint32_t txBuffIfNull; /*!< Used if there is not txData for DMA purpose.*/ + uint32_t txLastData; /*!< Used if there is an extra byte when 16bits per frame for DMA purpose.*/ + + volatile uint8_t state; /*!< DSPI transfer state.*/ + + uint32_t errorCount; /*!< Error count for slave transfer.*/ + + dspi_slave_edma_transfer_callback_t callback; /*!< Completion callback. */ + void *userData; /*!< Callback user data. */ + + edma_handle_t *edmaRxRegToRxDataHandle; /*!<edma_handle_t handle point used for RxReg to RxData buff*/ + edma_handle_t *edmaTxDataToTxRegHandle; /*!<edma_handle_t handle point used for TxData to TxReg*/ + + edma_tcd_t dspiSoftwareTCD[2]; /*!<SoftwareTCD , internal used*/ +}; + +/*********************************************************************************************************************** + * API + **********************************************************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif /*_cplusplus*/ + +/*Transactional APIs*/ + +/*! + * @brief Initializes the DSPI master eDMA handle. + * + * This function initializes the DSPI eDMA handle which can be used for other DSPI transactional APIs. Usually, for a + * specified DSPI instance, user need only call this API once to get the initialized handle. + * + * Note that DSPI eDMA has separated (RX and TX as two sources) or shared (RX and TX are the same source) DMA request source. + * (1)For the separated DMA request source, enable and set the RX DMAMUX source for edmaRxRegToRxDataHandle and + * TX DMAMUX source for edmaIntermediaryToTxRegHandle. + * (2)For the shared DMA request source, enable and set the RX/RX DMAMUX source for the edmaRxRegToRxDataHandle. + * + * @param base DSPI peripheral base address. + * @param handle DSPI handle pointer to dspi_master_edma_handle_t. + * @param callback DSPI callback. + * @param userData callback function parameter. + * @param edmaRxRegToRxDataHandle edmaRxRegToRxDataHandle pointer to edma_handle_t. + * @param edmaTxDataToIntermediaryHandle edmaTxDataToIntermediaryHandle pointer to edma_handle_t. + * @param edmaIntermediaryToTxRegHandle edmaIntermediaryToTxRegHandle pointer to edma_handle_t. + */ +void DSPI_MasterTransferCreateHandleEDMA(SPI_Type *base, + dspi_master_edma_handle_t *handle, + dspi_master_edma_transfer_callback_t callback, + void *userData, + edma_handle_t *edmaRxRegToRxDataHandle, + edma_handle_t *edmaTxDataToIntermediaryHandle, + edma_handle_t *edmaIntermediaryToTxRegHandle); + +/*! + * @brief DSPI master transfer data using eDMA. + * + * This function transfer data using eDMA. This is non-blocking function, which returns right away. When all data + * have been transfer, the callback function is called. + * + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_master_edma_handle_t structure which stores the transfer state. + * @param transfer pointer to dspi_transfer_t structure. + * @return status of status_t. + */ +status_t DSPI_MasterTransferEDMA(SPI_Type *base, dspi_master_edma_handle_t *handle, dspi_transfer_t *transfer); + +/*! + * @brief DSPI master aborts a transfer which using eDMA. + * + * This function aborts a transfer which using eDMA. + * + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_master_edma_handle_t structure which stores the transfer state. + */ +void DSPI_MasterTransferAbortEDMA(SPI_Type *base, dspi_master_edma_handle_t *handle); + +/*! + * @brief Gets the master eDMA transfer count. + * + * This function get the master eDMA transfer count. + * + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_master_edma_handle_t structure which stores the transfer state. + * @param count Number of bytes transferred so far by the non-blocking transaction. + * @return status of status_t. + */ +status_t DSPI_MasterTransferGetCountEDMA(SPI_Type *base, dspi_master_edma_handle_t *handle, size_t *count); + +/*! + * @brief Initializes the DSPI slave eDMA handle. + * + * This function initializes the DSPI eDMA handle which can be used for other DSPI transactional APIs. Usually, for a + * specified DSPI instance, call this API once to get the initialized handle. + * + * Note that DSPI eDMA has separated (RN and TX in 2 sources) or shared (RX and TX are the same source) DMA request source. + * (1)For the separated DMA request source, enable and set the RX DMAMUX source for edmaRxRegToRxDataHandle and + * TX DMAMUX source for edmaTxDataToTxRegHandle. + * (2)For the shared DMA request source, enable and set the RX/RX DMAMUX source for the edmaRxRegToRxDataHandle. + * + * @param base DSPI peripheral base address. + * @param handle DSPI handle pointer to dspi_slave_edma_handle_t. + * @param callback DSPI callback. + * @param userData callback function parameter. + * @param edmaRxRegToRxDataHandle edmaRxRegToRxDataHandle pointer to edma_handle_t. + * @param edmaTxDataToTxRegHandle edmaTxDataToTxRegHandle pointer to edma_handle_t. + */ +void DSPI_SlaveTransferCreateHandleEDMA(SPI_Type *base, + dspi_slave_edma_handle_t *handle, + dspi_slave_edma_transfer_callback_t callback, + void *userData, + edma_handle_t *edmaRxRegToRxDataHandle, + edma_handle_t *edmaTxDataToTxRegHandle); + +/*! + * @brief DSPI slave transfer data using eDMA. + * + * This function transfer data using eDMA. This is non-blocking function, which returns right away. When all data + * have been transfer, the callback function is called. + * Note that slave EDMA transfer cannot support the situation that transfer_size is 1 when the bitsPerFrame is greater + * than 8 . + + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_slave_edma_handle_t structure which stores the transfer state. + * @param transfer pointer to dspi_transfer_t structure. + * @return status of status_t. + */ +status_t DSPI_SlaveTransferEDMA(SPI_Type *base, dspi_slave_edma_handle_t *handle, dspi_transfer_t *transfer); + +/*! + * @brief DSPI slave aborts a transfer which using eDMA. + * + * This function aborts a transfer which using eDMA. + * + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_slave_edma_handle_t structure which stores the transfer state. + */ +void DSPI_SlaveTransferAbortEDMA(SPI_Type *base, dspi_slave_edma_handle_t *handle); + +/*! + * @brief Gets the slave eDMA transfer count. + * + * This function gets the slave eDMA transfer count. + * + * @param base DSPI peripheral base address. + * @param handle pointer to dspi_slave_edma_handle_t structure which stores the transfer state. + * @param count Number of bytes transferred so far by the non-blocking transaction. + * @return status of status_t. + */ +status_t DSPI_SlaveTransferGetCountEDMA(SPI_Type *base, dspi_slave_edma_handle_t *handle, size_t *count); + +#if defined(__cplusplus) +} +#endif /*_cplusplus*/ + /*! + *@} + */ + +#endif /*_FSL_DSPI_EDMA_H_*/ diff --git a/drivers/fsl_edma.c b/drivers/fsl_edma.c new file mode 100644 index 0000000..8ad12fc --- /dev/null +++ b/drivers/fsl_edma.c @@ -0,0 +1,1313 @@ +/* +* Copyright (c) 2015, Freescale Semiconductor, Inc. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without modification, +* are permitted provided that the following conditions are met: +* +* o Redistributions of source code must retain the above copyright notice, this list +* of conditions and the following disclaimer. +* +* o Redistributions in binary form must reproduce the above copyright notice, this +* list of conditions and the following disclaimer in the documentation and/or +* other materials provided with the distribution. +* +* o Neither the name of Freescale Semiconductor, Inc. nor the names of its +* contributors may be used to endorse or promote products derived from this +* software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR +* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "fsl_edma.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +#define EDMA_TRANSFER_ENABLED_MASK 0x80U + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/*! + * @brief Get instance number for EDMA. + * + * @param base EDMA peripheral base address. + */ +static uint32_t EDMA_GetInstance(DMA_Type *base); + +/*! + * @brief Push content of TCD structure into hardware TCD register. + * + * @param base EDMA peripheral base address. + * @param channel EDMA channel number. + * @param tcd Point to TCD structure. + */ +static void EDMA_InstallTCD(DMA_Type *base, uint32_t channel, edma_tcd_t *tcd); + +/******************************************************************************* + * Variables + ******************************************************************************/ + +/*! @brief Array to map EDMA instance number to base pointer. */ +static DMA_Type *const s_edmaBases[] = DMA_BASE_PTRS; + +/*! @brief Array to map EDMA instance number to clock name. */ +static const clock_ip_name_t s_edmaClockName[] = EDMA_CLOCKS; + +/*! @brief Array to map EDMA instance number to IRQ number. */ +static const IRQn_Type s_edmaIRQNumber[] = DMA_CHN_IRQS; + +/*! @brief Pointers to transfer handle for each EDMA channel. */ +static edma_handle_t *s_EDMAHandle[FSL_FEATURE_EDMA_MODULE_CHANNEL * FSL_FEATURE_SOC_EDMA_COUNT]; + +/******************************************************************************* + * Code + ******************************************************************************/ + +static uint32_t EDMA_GetInstance(DMA_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_EDMA_COUNT; instance++) + { + if (s_edmaBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_EDMA_COUNT); + + return instance; +} + +static void EDMA_InstallTCD(DMA_Type *base, uint32_t channel, edma_tcd_t *tcd) +{ + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + assert(tcd != NULL); + assert(((uint32_t)tcd & 0x1FU) == 0); + + /* Push tcd into hardware TCD register */ + base->TCD[channel].SADDR = tcd->SADDR; + base->TCD[channel].SOFF = tcd->SOFF; + base->TCD[channel].ATTR = tcd->ATTR; + base->TCD[channel].NBYTES_MLNO = tcd->NBYTES; + base->TCD[channel].SLAST = tcd->SLAST; + base->TCD[channel].DADDR = tcd->DADDR; + base->TCD[channel].DOFF = tcd->DOFF; + base->TCD[channel].CITER_ELINKNO = tcd->CITER; + base->TCD[channel].DLAST_SGA = tcd->DLAST_SGA; + /* Clear DONE bit first, otherwise ESG cannot be set */ + base->TCD[channel].CSR = 0; + base->TCD[channel].CSR = tcd->CSR; + base->TCD[channel].BITER_ELINKNO = tcd->BITER; +} + +void EDMA_Init(DMA_Type *base, const edma_config_t *config) +{ + assert(config != NULL); + + uint32_t tmpreg; + + /* Ungate EDMA periphral clock */ + CLOCK_EnableClock(s_edmaClockName[EDMA_GetInstance(base)]); + /* Configure EDMA peripheral according to the configuration structure. */ + tmpreg = base->CR; + tmpreg &= ~(DMA_CR_ERCA_MASK | DMA_CR_HOE_MASK | DMA_CR_CLM_MASK | DMA_CR_EDBG_MASK); + tmpreg |= (DMA_CR_ERCA(config->enableRoundRobinArbitration) | DMA_CR_HOE(config->enableHaltOnError) | + DMA_CR_CLM(config->enableContinuousLinkMode) | DMA_CR_EDBG(config->enableDebugMode) | DMA_CR_EMLM(true)); + base->CR = tmpreg; +} + +void EDMA_Deinit(DMA_Type *base) +{ + /* Gate EDMA periphral clock */ + CLOCK_DisableClock(s_edmaClockName[EDMA_GetInstance(base)]); +} + +void EDMA_GetDefaultConfig(edma_config_t *config) +{ + assert(config != NULL); + + config->enableRoundRobinArbitration = false; + config->enableHaltOnError = true; + config->enableContinuousLinkMode = false; + config->enableDebugMode = false; +} + +void EDMA_ResetChannel(DMA_Type *base, uint32_t channel) +{ + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + + EDMA_TcdReset((edma_tcd_t *)&base->TCD[channel]); +} + +void EDMA_SetTransferConfig(DMA_Type *base, uint32_t channel, const edma_transfer_config_t *config, edma_tcd_t *nextTcd) +{ + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + assert(config != NULL); + assert(((uint32_t)nextTcd & 0x1FU) == 0); + + EDMA_TcdSetTransferConfig((edma_tcd_t *)&base->TCD[channel], config, nextTcd); +} + +void EDMA_SetMinorOffsetConfig(DMA_Type *base, uint32_t channel, const edma_minor_offset_config_t *config) +{ + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + assert(config != NULL); + + uint32_t tmpreg; + + tmpreg = base->TCD[channel].NBYTES_MLOFFYES; + tmpreg &= ~(DMA_NBYTES_MLOFFYES_SMLOE_MASK | DMA_NBYTES_MLOFFYES_DMLOE_MASK | DMA_NBYTES_MLOFFYES_MLOFF_MASK); + tmpreg |= + (DMA_NBYTES_MLOFFYES_SMLOE(config->enableSrcMinorOffset) | + DMA_NBYTES_MLOFFYES_DMLOE(config->enableDestMinorOffset) | DMA_NBYTES_MLOFFYES_MLOFF(config->minorOffset)); + base->TCD[channel].NBYTES_MLOFFYES = tmpreg; +} + +void EDMA_SetChannelLink(DMA_Type *base, uint32_t channel, edma_channel_link_type_t type, uint32_t linkedChannel) +{ + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + assert(linkedChannel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + + EDMA_TcdSetChannelLink((edma_tcd_t *)&base->TCD[channel], type, linkedChannel); +} + +void EDMA_SetBandWidth(DMA_Type *base, uint32_t channel, edma_bandwidth_t bandWidth) +{ + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + + base->TCD[channel].CSR = (base->TCD[channel].CSR & (~DMA_CSR_BWC_MASK)) | DMA_CSR_BWC(bandWidth); +} + +void EDMA_SetModulo(DMA_Type *base, uint32_t channel, edma_modulo_t srcModulo, edma_modulo_t destModulo) +{ + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + + uint32_t tmpreg; + + tmpreg = base->TCD[channel].ATTR & (~(DMA_ATTR_SMOD_MASK | DMA_ATTR_DMOD_MASK)); + base->TCD[channel].ATTR = tmpreg | DMA_ATTR_DMOD(destModulo) | DMA_ATTR_SMOD(srcModulo); +} + +void EDMA_EnableChannelInterrupts(DMA_Type *base, uint32_t channel, uint32_t mask) +{ + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + + /* Enable error interrupt */ + if (mask & kEDMA_ErrorInterruptEnable) + { + base->EEI |= (0x1U << channel); + } + + /* Enable Major interrupt */ + if (mask & kEDMA_MajorInterruptEnable) + { + base->TCD[channel].CSR |= DMA_CSR_INTMAJOR_MASK; + } + + /* Enable Half major interrupt */ + if (mask & kEDMA_HalfInterruptEnable) + { + base->TCD[channel].CSR |= DMA_CSR_INTHALF_MASK; + } +} + +void EDMA_DisableChannelInterrupts(DMA_Type *base, uint32_t channel, uint32_t mask) +{ + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + + /* Disable error interrupt */ + if (mask & kEDMA_ErrorInterruptEnable) + { + base->EEI &= ~(0x1U << channel); + } + + /* Disable Major interrupt */ + if (mask & kEDMA_MajorInterruptEnable) + { + base->TCD[channel].CSR &= ~DMA_CSR_INTMAJOR_MASK; + } + + /* Disable Half major interrupt */ + if (mask & kEDMA_HalfInterruptEnable) + { + base->TCD[channel].CSR &= ~DMA_CSR_INTHALF_MASK; + } +} + +void EDMA_TcdReset(edma_tcd_t *tcd) +{ + assert(tcd != NULL); + assert(((uint32_t)tcd & 0x1FU) == 0); + + /* Reset channel TCD */ + tcd->SADDR = 0U; + tcd->SOFF = 0U; + tcd->ATTR = 0U; + tcd->NBYTES = 0U; + tcd->SLAST = 0U; + tcd->DADDR = 0U; + tcd->DOFF = 0U; + tcd->CITER = 0U; + tcd->DLAST_SGA = 0U; + /* Enable auto disable request feature */ + tcd->CSR = DMA_CSR_DREQ(true); + tcd->BITER = 0U; +} + +void EDMA_TcdSetTransferConfig(edma_tcd_t *tcd, const edma_transfer_config_t *config, edma_tcd_t *nextTcd) +{ + assert(tcd != NULL); + assert(((uint32_t)tcd & 0x1FU) == 0); + assert(config != NULL); + assert(((uint32_t)nextTcd & 0x1FU) == 0); + + /* source address */ + tcd->SADDR = config->srcAddr; + /* destination address */ + tcd->DADDR = config->destAddr; + /* Source data and destination data transfer size */ + tcd->ATTR = DMA_ATTR_SSIZE(config->srcTransferSize) | DMA_ATTR_DSIZE(config->destTransferSize); + /* Source address signed offset */ + tcd->SOFF = config->srcOffset; + /* Destination address signed offset */ + tcd->DOFF = config->destOffset; + /* Minor byte transfer count */ + tcd->NBYTES = config->minorLoopBytes; + /* Current major iteration count */ + tcd->CITER = config->majorLoopCounts; + /* Starting major iteration count */ + tcd->BITER = config->majorLoopCounts; + /* Enable scatter/gather processing */ + if (nextTcd != NULL) + { + tcd->DLAST_SGA = (uint32_t)nextTcd; + /* + Before call EDMA_TcdSetTransferConfig or EDMA_SetTransferConfig, + user must call EDMA_TcdReset or EDMA_ResetChannel which will set + DREQ, so must use "|" or "&" rather than "=". + + Clear the DREQ bit because scatter gather has been enabled, so the + previous transfer is not the last transfer, and channel request should + be enabled at the next transfer(the next TCD). + */ + tcd->CSR = (tcd->CSR | DMA_CSR_ESG_MASK) & ~DMA_CSR_DREQ_MASK; + } +} + +void EDMA_TcdSetMinorOffsetConfig(edma_tcd_t *tcd, const edma_minor_offset_config_t *config) +{ + assert(tcd != NULL); + assert(((uint32_t)tcd & 0x1FU) == 0); + + uint32_t tmpreg; + + tmpreg = tcd->NBYTES & + ~(DMA_NBYTES_MLOFFYES_SMLOE_MASK | DMA_NBYTES_MLOFFYES_DMLOE_MASK | DMA_NBYTES_MLOFFYES_MLOFF_MASK); + tmpreg |= + (DMA_NBYTES_MLOFFYES_SMLOE(config->enableSrcMinorOffset) | + DMA_NBYTES_MLOFFYES_DMLOE(config->enableDestMinorOffset) | DMA_NBYTES_MLOFFYES_MLOFF(config->minorOffset)); + tcd->NBYTES = tmpreg; +} + +void EDMA_TcdSetChannelLink(edma_tcd_t *tcd, edma_channel_link_type_t type, uint32_t linkedChannel) +{ + assert(tcd != NULL); + assert(((uint32_t)tcd & 0x1FU) == 0); + assert(linkedChannel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + + if (type == kEDMA_MinorLink) /* Minor link config */ + { + uint32_t tmpreg; + + /* Enable minor link */ + tcd->CITER |= DMA_CITER_ELINKYES_ELINK_MASK; + tcd->BITER |= DMA_BITER_ELINKYES_ELINK_MASK; + /* Set likned channel */ + tmpreg = tcd->CITER & (~DMA_CITER_ELINKYES_LINKCH_MASK); + tmpreg |= DMA_CITER_ELINKYES_LINKCH(linkedChannel); + tcd->CITER = tmpreg; + tmpreg = tcd->BITER & (~DMA_BITER_ELINKYES_LINKCH_MASK); + tmpreg |= DMA_BITER_ELINKYES_LINKCH(linkedChannel); + tcd->BITER = tmpreg; + } + else if (type == kEDMA_MajorLink) /* Major link config */ + { + uint32_t tmpreg; + + /* Enable major link */ + tcd->CSR |= DMA_CSR_MAJORELINK_MASK; + /* Set major linked channel */ + tmpreg = tcd->CSR & (~DMA_CSR_MAJORLINKCH_MASK); + tcd->CSR = tmpreg | DMA_CSR_MAJORLINKCH(linkedChannel); + } + else /* Link none */ + { + tcd->CITER &= ~DMA_CITER_ELINKYES_ELINK_MASK; + tcd->BITER &= ~DMA_BITER_ELINKYES_ELINK_MASK; + tcd->CSR &= ~DMA_CSR_MAJORELINK_MASK; + } +} + +void EDMA_TcdSetModulo(edma_tcd_t *tcd, edma_modulo_t srcModulo, edma_modulo_t destModulo) +{ + assert(tcd != NULL); + assert(((uint32_t)tcd & 0x1FU) == 0); + + uint32_t tmpreg; + + tmpreg = tcd->ATTR & (~(DMA_ATTR_SMOD_MASK | DMA_ATTR_DMOD_MASK)); + tcd->ATTR = tmpreg | DMA_ATTR_DMOD(destModulo) | DMA_ATTR_SMOD(srcModulo); +} + +void EDMA_TcdEnableInterrupts(edma_tcd_t *tcd, uint32_t mask) +{ + assert(tcd != NULL); + + /* Enable Major interrupt */ + if (mask & kEDMA_MajorInterruptEnable) + { + tcd->CSR |= DMA_CSR_INTMAJOR_MASK; + } + + /* Enable Half major interrupt */ + if (mask & kEDMA_HalfInterruptEnable) + { + tcd->CSR |= DMA_CSR_INTHALF_MASK; + } +} + +void EDMA_TcdDisableInterrupts(edma_tcd_t *tcd, uint32_t mask) +{ + assert(tcd != NULL); + + /* Disable Major interrupt */ + if (mask & kEDMA_MajorInterruptEnable) + { + tcd->CSR &= ~DMA_CSR_INTMAJOR_MASK; + } + + /* Disable Half major interrupt */ + if (mask & kEDMA_HalfInterruptEnable) + { + tcd->CSR &= ~DMA_CSR_INTHALF_MASK; + } +} + +uint32_t EDMA_GetRemainingBytes(DMA_Type *base, uint32_t channel) +{ + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + + uint32_t nbytes = 0; + uint32_t remainingBytes = 0; + + if (DMA_CSR_DONE_MASK & base->TCD[channel].CSR) + { + remainingBytes = 0; + } + else + { + /* Calculate the nbytes */ + if (base->TCD[channel].NBYTES_MLOFFYES & (DMA_NBYTES_MLOFFYES_SMLOE_MASK | DMA_NBYTES_MLOFFYES_DMLOE_MASK)) + { + nbytes = (base->TCD[channel].NBYTES_MLOFFYES & DMA_NBYTES_MLOFFYES_NBYTES_MASK) >> + DMA_NBYTES_MLOFFYES_NBYTES_SHIFT; + } + else + { + nbytes = + (base->TCD[channel].NBYTES_MLOFFNO & DMA_NBYTES_MLOFFNO_NBYTES_MASK) >> DMA_NBYTES_MLOFFNO_NBYTES_SHIFT; + } + /* Calculate the unfinished bytes */ + if (base->TCD[channel].CITER_ELINKNO & DMA_CITER_ELINKNO_ELINK_MASK) + { + remainingBytes = ((base->TCD[channel].CITER_ELINKYES & DMA_CITER_ELINKYES_CITER_MASK) >> + DMA_CITER_ELINKYES_CITER_SHIFT) * + nbytes; + } + else + { + remainingBytes = + ((base->TCD[channel].CITER_ELINKNO & DMA_CITER_ELINKNO_CITER_MASK) >> DMA_CITER_ELINKNO_CITER_SHIFT) * + nbytes; + } + } + + return remainingBytes; +} + +uint32_t EDMA_GetChannelStatusFlags(DMA_Type *base, uint32_t channel) +{ + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + + uint32_t retval = 0; + + /* Get DONE bit flag */ + retval |= ((base->TCD[channel].CSR & DMA_CSR_DONE_MASK) >> DMA_CSR_DONE_SHIFT); + /* Get ERROR bit flag */ + retval |= (((base->ERR >> channel) & 0x1U) << 1U); + /* Get INT bit flag */ + retval |= (((base->INT >> channel) & 0x1U) << 2U); + + return retval; +} + +void EDMA_ClearChannelStatusFlags(DMA_Type *base, uint32_t channel, uint32_t mask) +{ + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + + /* Clear DONE bit flag */ + if (mask & kEDMA_DoneFlag) + { + base->CDNE = channel; + } + /* Clear ERROR bit flag */ + if (mask & kEDMA_ErrorFlag) + { + base->CERR = channel; + } + /* Clear INT bit flag */ + if (mask & kEDMA_InterruptFlag) + { + base->CINT = channel; + } +} + +void EDMA_CreateHandle(edma_handle_t *handle, DMA_Type *base, uint32_t channel) +{ + assert(handle != NULL); + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + + uint32_t edmaInstance; + uint32_t channelIndex; + edma_tcd_t *tcdRegs; + + handle->base = base; + handle->channel = channel; + /* Get the DMA instance number */ + edmaInstance = EDMA_GetInstance(base); + channelIndex = (edmaInstance * FSL_FEATURE_EDMA_MODULE_CHANNEL) + channel; + s_EDMAHandle[channelIndex] = handle; + /* Enable NVIC interrupt */ + EnableIRQ(s_edmaIRQNumber[channelIndex]); + /* + Reset TCD registers to zero. Unlike the EDMA_TcdReset(DREQ will be set), + CSR will be 0. Because in order to suit EDMA busy check mechanism in + EDMA_SubmitTransfer, CSR must be set 0. + */ + tcdRegs = (edma_tcd_t *)&handle->base->TCD[handle->channel]; + tcdRegs->SADDR = 0; + tcdRegs->SOFF = 0; + tcdRegs->ATTR = 0; + tcdRegs->NBYTES = 0; + tcdRegs->SLAST = 0; + tcdRegs->DADDR = 0; + tcdRegs->DOFF = 0; + tcdRegs->CITER = 0; + tcdRegs->DLAST_SGA = 0; + tcdRegs->CSR = 0; + tcdRegs->BITER = 0; +} + +void EDMA_InstallTCDMemory(edma_handle_t *handle, edma_tcd_t *tcdPool, uint32_t tcdSize) +{ + assert(handle != NULL); + assert(((uint32_t)tcdPool & 0x1FU) == 0); + + /* Initialize tcd queue attibute. */ + handle->header = 0; + handle->tail = 0; + handle->tcdUsed = 0; + handle->tcdSize = tcdSize; + handle->flags = 0; + handle->tcdPool = tcdPool; +} + +void EDMA_SetCallback(edma_handle_t *handle, edma_callback callback, void *userData) +{ + assert(handle != NULL); + + handle->callback = callback; + handle->userData = userData; +} + +void EDMA_PrepareTransfer(edma_transfer_config_t *config, + void *srcAddr, + uint32_t srcWidth, + void *destAddr, + uint32_t destWidth, + uint32_t bytesEachRequest, + uint32_t transferBytes, + edma_transfer_type_t type) +{ + assert(config != NULL); + assert(srcAddr != NULL); + assert(destAddr != NULL); + assert((srcWidth == 1U) || (srcWidth == 2U) || (srcWidth == 4U) || (srcWidth == 16U) || (srcWidth == 32U)); + assert((destWidth == 1U) || (destWidth == 2U) || (destWidth == 4U) || (destWidth == 16U) || (destWidth == 32U)); + assert(transferBytes % bytesEachRequest == 0); + + config->destAddr = (uint32_t)destAddr; + config->srcAddr = (uint32_t)srcAddr; + config->minorLoopBytes = bytesEachRequest; + config->majorLoopCounts = transferBytes / bytesEachRequest; + switch (srcWidth) + { + case 1U: + config->srcTransferSize = kEDMA_TransferSize1Bytes; + break; + case 2U: + config->srcTransferSize = kEDMA_TransferSize2Bytes; + break; + case 4U: + config->srcTransferSize = kEDMA_TransferSize4Bytes; + break; + case 16U: + config->srcTransferSize = kEDMA_TransferSize16Bytes; + break; + case 32U: + config->srcTransferSize = kEDMA_TransferSize32Bytes; + break; + default: + break; + } + switch (destWidth) + { + case 1U: + config->destTransferSize = kEDMA_TransferSize1Bytes; + break; + case 2U: + config->destTransferSize = kEDMA_TransferSize2Bytes; + break; + case 4U: + config->destTransferSize = kEDMA_TransferSize4Bytes; + break; + case 16U: + config->destTransferSize = kEDMA_TransferSize16Bytes; + break; + case 32U: + config->destTransferSize = kEDMA_TransferSize32Bytes; + break; + default: + break; + } + switch (type) + { + case kEDMA_MemoryToMemory: + config->destOffset = destWidth; + config->srcOffset = srcWidth; + break; + case kEDMA_MemoryToPeripheral: + config->destOffset = 0U; + config->srcOffset = srcWidth; + break; + case kEDMA_PeripheralToMemory: + config->destOffset = destWidth; + config->srcOffset = 0U; + break; + default: + break; + } +} + +status_t EDMA_SubmitTransfer(edma_handle_t *handle, const edma_transfer_config_t *config) +{ + assert(handle != NULL); + assert(config != NULL); + + edma_tcd_t *tcdRegs = (edma_tcd_t *)&handle->base->TCD[handle->channel]; + + if (handle->tcdPool == NULL) + { + /* + Check if EDMA is busy: if the given channel started transfer, CSR will be not zero. Because + if it is the last transfer, DREQ will be set. If not, ESG will be set. So in order to suit + this check mechanism, EDMA_CreatHandle will clear CSR register. + */ + if ((tcdRegs->CSR != 0) && ((tcdRegs->CSR & DMA_CSR_DONE_MASK) == 0)) + { + return kStatus_EDMA_Busy; + } + else + { + EDMA_SetTransferConfig(handle->base, handle->channel, config, NULL); + /* Enable auto disable request feature */ + handle->base->TCD[handle->channel].CSR |= DMA_CSR_DREQ_MASK; + /* Enable major interrupt */ + handle->base->TCD[handle->channel].CSR |= DMA_CSR_INTMAJOR_MASK; + + return kStatus_Success; + } + } + else /* Use the TCD queue. */ + { + uint32_t primask; + uint32_t csr; + int8_t currentTcd; + int8_t previousTcd; + int8_t nextTcd; + + /* Check if tcd pool is full. */ + primask = DisableGlobalIRQ(); + if (handle->tcdUsed >= handle->tcdSize) + { + EnableGlobalIRQ(primask); + + return kStatus_EDMA_QueueFull; + } + currentTcd = handle->tail; + handle->tcdUsed++; + /* Calculate index of next TCD */ + nextTcd = currentTcd + 1U; + if (nextTcd == handle->tcdSize) + { + nextTcd = 0U; + } + /* Advance queue tail index */ + handle->tail = nextTcd; + EnableGlobalIRQ(primask); + /* Calculate index of previous TCD */ + previousTcd = currentTcd ? currentTcd - 1U : handle->tcdSize - 1U; + /* Configure current TCD block. */ + EDMA_TcdReset(&handle->tcdPool[currentTcd]); + EDMA_TcdSetTransferConfig(&handle->tcdPool[currentTcd], config, NULL); + /* Enable major interrupt */ + handle->tcdPool[currentTcd].CSR |= DMA_CSR_INTMAJOR_MASK; + /* Link current TCD with next TCD for identification of current TCD */ + handle->tcdPool[currentTcd].DLAST_SGA = (uint32_t)&handle->tcdPool[nextTcd]; + /* Chain from previous descriptor unless tcd pool size is 1(this descriptor is its own predecessor). */ + if (currentTcd != previousTcd) + { + /* Enable scatter/gather feature in the previous TCD block. */ + csr = (handle->tcdPool[previousTcd].CSR | DMA_CSR_ESG_MASK) & ~DMA_CSR_DREQ_MASK; + handle->tcdPool[previousTcd].CSR = csr; + /* + Check if the TCD blcok in the registers is the previous one (points to current TCD block). It + is used to check if the previous TCD linked has been loaded in TCD register. If so, it need to + link the TCD register in case link the current TCD with the dead chain when TCD loading occurs + before link the previous TCD block. + */ + if (tcdRegs->DLAST_SGA == (uint32_t)&handle->tcdPool[currentTcd]) + { + /* Enable scatter/gather also in the TCD registers. */ + csr = (tcdRegs->CSR | DMA_CSR_ESG_MASK) & ~DMA_CSR_DREQ_MASK; + /* Must write the CSR register one-time, because the transfer maybe finished anytime. */ + tcdRegs->CSR = csr; + /* + It is very important to check the ESG bit! + Because this hardware design: if DONE bit is set, the ESG bit can not be set. So it can + be used to check if the dynamic TCD link operation is successful. If ESG bit is not set + and the DLAST_SGA is not the next TCD address(it means the dynamic TCD link succeed and + the current TCD block has been loaded into TCD registers), it means transfer finished + and TCD link operation fail, so must install TCD content into TCD registers and enable + transfer again. And if ESG is set, it means transfer has notfinished, so TCD dynamic + link succeed. + */ + if (tcdRegs->CSR & DMA_CSR_ESG_MASK) + { + return kStatus_Success; + } + /* + Check whether the current TCD block is already loaded in the TCD registers. It is another + condition when ESG bit is not set: it means the dynamic TCD link succeed and the current + TCD block has been loaded into TCD registers. + */ + if (tcdRegs->DLAST_SGA == (uint32_t)&handle->tcdPool[nextTcd]) + { + return kStatus_Success; + } + /* + If go to this, means the previous transfer finished, and the DONE bit is set. + So shall configure TCD registers. + */ + } + else if (tcdRegs->DLAST_SGA != 0) + { + /* The current TCD block has been linked successfully. */ + return kStatus_Success; + } + else + { + /* + DLAST_SGA is 0 and it means the first submit transfer, so shall configure + TCD registers. + */ + } + } + /* There is no live chain, TCD block need to be installed in TCD registers. */ + EDMA_InstallTCD(handle->base, handle->channel, &handle->tcdPool[currentTcd]); + /* Enable channel request again. */ + if (handle->flags & EDMA_TRANSFER_ENABLED_MASK) + { + handle->base->SERQ = DMA_SERQ_SERQ(handle->channel); + } + + return kStatus_Success; + } +} + +void EDMA_StartTransfer(edma_handle_t *handle) +{ + assert(handle != NULL); + + if (handle->tcdPool == NULL) + { + handle->base->SERQ = DMA_SERQ_SERQ(handle->channel); + } + else /* Use the TCD queue. */ + { + uint32_t primask; + edma_tcd_t *tcdRegs = (edma_tcd_t *)&handle->base->TCD[handle->channel]; + + handle->flags |= EDMA_TRANSFER_ENABLED_MASK; + + /* Check if there was at least one descriptor submitted since reset (TCD in registers is valid) */ + if (tcdRegs->DLAST_SGA != 0U) + { + primask = DisableGlobalIRQ(); + /* Check if channel request is actually disable. */ + if ((handle->base->ERQ & (1U << handle->channel)) == 0U) + { + /* Check if transfer is paused. */ + if ((!(tcdRegs->CSR & DMA_CSR_DONE_MASK)) || (tcdRegs->CSR & DMA_CSR_ESG_MASK)) + { + /* + Re-enable channel request must be as soon as possible, so must put it into + critical section to avoid task switching or interrupt service routine. + */ + handle->base->SERQ = DMA_SERQ_SERQ(handle->channel); + } + } + EnableGlobalIRQ(primask); + } + } +} + +void EDMA_StopTransfer(edma_handle_t *handle) +{ + assert(handle != NULL); + + handle->flags &= (~EDMA_TRANSFER_ENABLED_MASK); + handle->base->CERQ = DMA_CERQ_CERQ(handle->channel); +} + +void EDMA_AbortTransfer(edma_handle_t *handle) +{ + handle->base->CERQ = DMA_CERQ_CERQ(handle->channel); + /* + Clear CSR to release channel. Because if the given channel started transfer, + CSR will be not zero. Because if it is the last transfer, DREQ will be set. + If not, ESG will be set. + */ + handle->base->TCD[handle->channel].CSR = 0; + /* Cancel all next TCD transfer. */ + handle->base->TCD[handle->channel].DLAST_SGA = 0; +} + +void EDMA_HandleIRQ(edma_handle_t *handle) +{ + assert(handle != NULL); + + /* Clear EDMA interrupt flag */ + handle->base->CINT = handle->channel; + if ((handle->tcdPool == NULL) && (handle->callback != NULL)) + { + (handle->callback)(handle, handle->userData, true, 0); + } + else /* Use the TCD queue. */ + { + uint32_t sga = handle->base->TCD[handle->channel].DLAST_SGA; + uint32_t sga_index; + int32_t tcds_done; + uint8_t new_header; + bool transfer_done; + + /* Check if transfer is already finished. */ + transfer_done = ((handle->base->TCD[handle->channel].CSR & DMA_CSR_DONE_MASK) != 0); + /* Get the offset of the current transfer TCD blcoks. */ + sga -= (uint32_t)handle->tcdPool; + /* Get the index of the current transfer TCD blcoks. */ + sga_index = sga / sizeof(edma_tcd_t); + /* Adjust header positions. */ + if (transfer_done) + { + /* New header shall point to the next TCD (current one is already finished) */ + new_header = sga_index; + } + else + { + /* New header shall point to this descriptor (not finished yet) */ + new_header = sga_index ? sga_index - 1U : handle->tcdSize - 1U; + } + /* Calculate the number of finished TCDs */ + if (new_header == handle->header) + { + if (handle->tcdUsed == handle->tcdSize) + { + tcds_done = handle->tcdUsed; + } + else + { + /* Internal error occurs. */ + tcds_done = 0; + } + } + else + { + tcds_done = new_header - handle->header; + if (tcds_done < 0) + { + tcds_done += handle->tcdSize; + } + } + /* Advance header to the point beyond the last finished TCD block. */ + handle->header = new_header; + /* Release TCD blocks. */ + handle->tcdUsed -= tcds_done; + /* Invoke callback function. */ + if (handle->callback) + { + (handle->callback)(handle, handle->userData, transfer_done, tcds_done); + } + } +} + +/* 8 channels (Shared): kl28 */ +#if defined(FSL_FEATURE_EDMA_MODULE_CHANNEL) && FSL_FEATURE_EDMA_MODULE_CHANNEL == 8U + +void DMA0_04_DriverIRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 0U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[0]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 4U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[4]); + } +} + +void DMA0_15_DriverIRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 1U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[1]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 5U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[5]); + } +} + +void DMA0_26_DriverIRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 2U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[2]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 6U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[6]); + } +} + +void DMA0_37_DriverIRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 3U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[3]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 7U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[7]); + } +} +#endif /* 8 channels (Shared) */ + +/* 32 channels (Shared): k80 */ +#if defined(FSL_FEATURE_EDMA_MODULE_CHANNEL) && FSL_FEATURE_EDMA_MODULE_CHANNEL == 32U + +void DMA0_DMA16_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 0U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[0]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 16U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[16]); + } +} + +void DMA1_DMA17_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 1U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[1]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 17U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[17]); + } +} + +void DMA2_DMA18_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 2U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[2]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 18U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[18]); + } +} + +void DMA3_DMA19_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 3U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[3]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 19U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[19]); + } +} + +void DMA4_DMA20_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 4U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[4]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 20U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[20]); + } +} + +void DMA5_DMA21_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 5U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[5]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 21U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[21]); + } +} + +void DMA6_DMA22_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 6U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[6]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 22U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[22]); + } +} + +void DMA7_DMA23_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 7U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[7]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 23U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[23]); + } +} + +void DMA8_DMA24_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 8U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[8]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 24U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[24]); + } +} + +void DMA9_DMA25_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 9U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[9]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 25U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[25]); + } +} + +void DMA10_DMA26_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 10U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[10]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 26U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[26]); + } +} + +void DMA11_DMA27_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 11U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[11]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 27U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[27]); + } +} + +void DMA12_DMA28_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 12U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[12]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 28U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[28]); + } +} + +void DMA13_DMA29_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 13U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[13]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 29U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[29]); + } +} + +void DMA14_DMA30_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 14U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[14]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 30U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[30]); + } +} + +void DMA15_DMA31_IRQHandler(void) +{ + if ((EDMA_GetChannelStatusFlags(DMA0, 15U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[15]); + } + if ((EDMA_GetChannelStatusFlags(DMA0, 31U) & kEDMA_InterruptFlag) != 0U) + { + EDMA_HandleIRQ(s_EDMAHandle[31]); + } +} +#endif /* 32 channels (Shared) */ + +/* 4 channels (No Shared): kv10 */ +#if defined(FSL_FEATURE_EDMA_MODULE_CHANNEL) && FSL_FEATURE_EDMA_MODULE_CHANNEL > 0 + +void DMA0_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[0]); +} + +void DMA1_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[1]); +} + +void DMA2_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[2]); +} + +void DMA3_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[3]); +} + +/* 8 channels (No Shared) */ +#if defined(FSL_FEATURE_EDMA_MODULE_CHANNEL) && FSL_FEATURE_EDMA_MODULE_CHANNEL > 4U + +void DMA4_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[4]); +} + +void DMA5_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[5]); +} + +void DMA6_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[6]); +} + +void DMA7_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[7]); +} +#endif /* FSL_FEATURE_EDMA_MODULE_CHANNEL == 8 */ + +/* 16 channels (No Shared) */ +#if defined(FSL_FEATURE_EDMA_MODULE_CHANNEL) && FSL_FEATURE_EDMA_MODULE_CHANNEL > 8U + +void DMA8_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[8]); +} + +void DMA9_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[9]); +} + +void DMA10_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[10]); +} + +void DMA11_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[11]); +} + +void DMA12_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[12]); +} + +void DMA13_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[13]); +} + +void DMA14_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[14]); +} + +void DMA15_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[15]); +} +#endif /* FSL_FEATURE_EDMA_MODULE_CHANNEL == 16 */ + +/* 32 channels (No Shared) */ +#if defined(FSL_FEATURE_EDMA_MODULE_CHANNEL) && FSL_FEATURE_EDMA_MODULE_CHANNEL > 16U + +void DMA16_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[16]); +} + +void DMA17_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[17]); +} + +void DMA18_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[18]); +} + +void DMA19_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[19]); +} + +void DMA20_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[20]); +} + +void DMA21_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[21]); +} + +void DMA22_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[22]); +} + +void DMA23_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[23]); +} + +void DMA24_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[24]); +} + +void DMA25_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[25]); +} + +void DMA26_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[26]); +} + +void DMA27_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[27]); +} + +void DMA28_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[28]); +} + +void DMA29_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[29]); +} + +void DMA30_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[30]); +} + +void DMA31_DriverIRQHandler(void) +{ + EDMA_HandleIRQ(s_EDMAHandle[31]); +} +#endif /* FSL_FEATURE_EDMA_MODULE_CHANNEL == 32 */ + +#endif /* 4/8/16/32 channels (No Shared) */ diff --git a/drivers/fsl_edma.h b/drivers/fsl_edma.h new file mode 100644 index 0000000..02c4fab --- /dev/null +++ b/drivers/fsl_edma.h @@ -0,0 +1,880 @@ +/* +* Copyright (c) 2015, Freescale Semiconductor, Inc. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without modification, +* are permitted provided that the following conditions are met: +* +* o Redistributions of source code must retain the above copyright notice, this list +* of conditions and the following disclaimer. +* +* o Redistributions in binary form must reproduce the above copyright notice, this +* list of conditions and the following disclaimer in the documentation and/or +* other materials provided with the distribution. +* +* o Neither the name of Freescale Semiconductor, Inc. nor the names of its +* contributors may be used to endorse or promote products derived from this +* software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR +* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef _FSL_EDMA_H_ +#define _FSL_EDMA_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup edma + * @{ + */ + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief eDMA driver version */ +#define FSL_EDMA_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) /*!< Version 2.0.1. */ +/*@}*/ + +/*! @brief Compute the offset unit from DCHPRI3 */ +#define DMA_DCHPRI_INDEX(channel) (((channel) & ~0x03U) | (3 - ((channel)&0x03U))) + +/*! @brief Get the pointer of DCHPRIn */ +#define DMA_DCHPRIn(base, channel) ((volatile uint8_t *)&(base->DCHPRI3))[DMA_DCHPRI_INDEX(channel)] + +/*! @brief eDMA transfer configuration */ +typedef enum _edma_transfer_size +{ + kEDMA_TransferSize1Bytes = 0x0U, /*!< Source/Destination data transfer size is 1 byte every time */ + kEDMA_TransferSize2Bytes = 0x1U, /*!< Source/Destination data transfer size is 2 bytes every time */ + kEDMA_TransferSize4Bytes = 0x2U, /*!< Source/Destination data transfer size is 4 bytes every time */ + kEDMA_TransferSize16Bytes = 0x4U, /*!< Source/Destination data transfer size is 16 bytes every time */ + kEDMA_TransferSize32Bytes = 0x5U, /*!< Source/Destination data transfer size is 32 bytes every time */ +} edma_transfer_size_t; + +/*! @brief eDMA modulo configuration */ +typedef enum _edma_modulo +{ + kEDMA_ModuloDisable = 0x0U, /*!< Disable modulo */ + kEDMA_Modulo2bytes, /*!< Circular buffer size is 2 bytes. */ + kEDMA_Modulo4bytes, /*!< Circular buffer size is 4 bytes. */ + kEDMA_Modulo8bytes, /*!< Circular buffer size is 8 bytes. */ + kEDMA_Modulo16bytes, /*!< Circular buffer size is 16 bytes. */ + kEDMA_Modulo32bytes, /*!< Circular buffer size is 32 bytes. */ + kEDMA_Modulo64bytes, /*!< Circular buffer size is 64 bytes. */ + kEDMA_Modulo128bytes, /*!< Circular buffer size is 128 bytes. */ + kEDMA_Modulo256bytes, /*!< Circular buffer size is 256 bytes. */ + kEDMA_Modulo512bytes, /*!< Circular buffer size is 512 bytes. */ + kEDMA_Modulo1Kbytes, /*!< Circular buffer size is 1K bytes. */ + kEDMA_Modulo2Kbytes, /*!< Circular buffer size is 2K bytes. */ + kEDMA_Modulo4Kbytes, /*!< Circular buffer size is 4K bytes. */ + kEDMA_Modulo8Kbytes, /*!< Circular buffer size is 8K bytes. */ + kEDMA_Modulo16Kbytes, /*!< Circular buffer size is 16K bytes. */ + kEDMA_Modulo32Kbytes, /*!< Circular buffer size is 32K bytes. */ + kEDMA_Modulo64Kbytes, /*!< Circular buffer size is 64K bytes. */ + kEDMA_Modulo128Kbytes, /*!< Circular buffer size is 128K bytes. */ + kEDMA_Modulo256Kbytes, /*!< Circular buffer size is 256K bytes. */ + kEDMA_Modulo512Kbytes, /*!< Circular buffer size is 512K bytes. */ + kEDMA_Modulo1Mbytes, /*!< Circular buffer size is 1M bytes. */ + kEDMA_Modulo2Mbytes, /*!< Circular buffer size is 2M bytes. */ + kEDMA_Modulo4Mbytes, /*!< Circular buffer size is 4M bytes. */ + kEDMA_Modulo8Mbytes, /*!< Circular buffer size is 8M bytes. */ + kEDMA_Modulo16Mbytes, /*!< Circular buffer size is 16M bytes. */ + kEDMA_Modulo32Mbytes, /*!< Circular buffer size is 32M bytes. */ + kEDMA_Modulo64Mbytes, /*!< Circular buffer size is 64M bytes. */ + kEDMA_Modulo128Mbytes, /*!< Circular buffer size is 128M bytes. */ + kEDMA_Modulo256Mbytes, /*!< Circular buffer size is 256M bytes. */ + kEDMA_Modulo512Mbytes, /*!< Circular buffer size is 512M bytes. */ + kEDMA_Modulo1Gbytes, /*!< Circular buffer size is 1G bytes. */ + kEDMA_Modulo2Gbytes, /*!< Circular buffer size is 2G bytes. */ +} edma_modulo_t; + +/*! @brief Bandwidth control */ +typedef enum _edma_bandwidth +{ + kEDMA_BandwidthStallNone = 0x0U, /*!< No eDMA engine stalls. */ + kEDMA_BandwidthStall4Cycle = 0x2U, /*!< eDMA engine stalls for 4 cycles after each read/write. */ + kEDMA_BandwidthStall8Cycle = 0x3U, /*!< eDMA engine stalls for 8 cycles after each read/write. */ +} edma_bandwidth_t; + +/*! @brief Channel link type */ +typedef enum _edma_channel_link_type +{ + kEDMA_LinkNone = 0x0U, /*!< No channel link */ + kEDMA_MinorLink, /*!< Channel link after each minor loop */ + kEDMA_MajorLink, /*!< Channel link while major loop count exhausted */ +} edma_channel_link_type_t; + +/*!@brief eDMA channel status flags. */ +enum _edma_channel_status_flags +{ + kEDMA_DoneFlag = 0x1U, /*!< DONE flag, set while transfer finished, CITER value exhausted*/ + kEDMA_ErrorFlag = 0x2U, /*!< eDMA error flag, an error occurred in a transfer */ + kEDMA_InterruptFlag = 0x4U, /*!< eDMA interrupt flag, set while an interrupt occurred of this channel */ +}; + +/*! @brief eDMA channel error status flags. */ +enum _edma_error_status_flags +{ + kEDMA_DestinationBusErrorFlag = DMA_ES_DBE_MASK, /*!< Bus error on destination address */ + kEDMA_SourceBusErrorFlag = DMA_ES_SBE_MASK, /*!< Bus error on the source address */ + kEDMA_ScatterGatherErrorFlag = DMA_ES_SGE_MASK, /*!< Error on the Scatter/Gather address, not 32byte aligned. */ + kEDMA_NbytesErrorFlag = DMA_ES_NCE_MASK, /*!< NBYTES/CITER configuration error */ + kEDMA_DestinationOffsetErrorFlag = DMA_ES_DOE_MASK, /*!< Destination offset not aligned with destination size */ + kEDMA_DestinationAddressErrorFlag = DMA_ES_DAE_MASK, /*!< Destination address not aligned with destination size */ + kEDMA_SourceOffsetErrorFlag = DMA_ES_SOE_MASK, /*!< Source offset not aligned with source size */ + kEDMA_SourceAddressErrorFlag = DMA_ES_SAE_MASK, /*!< Source address not aligned with source size*/ + kEDMA_ErrorChannelFlag = DMA_ES_ERRCHN_MASK, /*!< Error channel number of the cancelled channel number */ + kEDMA_ChannelPriorityErrorFlag = DMA_ES_CPE_MASK, /*!< Channel priority is not unique. */ + kEDMA_TransferCanceledFlag = DMA_ES_ECX_MASK, /*!< Transfer cancelled */ +#if defined(FSL_FEATURE_EDMA_CHANNEL_GROUP_COUNT) && FSL_FEATURE_EDMA_CHANNEL_GROUP_COUNT > 1 + kEDMA_GroupPriorityErrorFlag = DMA_ES_GPE_MASK, /*!< Group priority is not unique. */ +#endif + kEDMA_ValidFlag = DMA_ES_VLD_MASK, /*!< No error occurred, this bit is 0. Otherwise, it is 1. */ +}; + +/*! @brief eDMA interrupt source */ +typedef enum _edma_interrupt_enable +{ + kEDMA_ErrorInterruptEnable = 0x1U, /*!< Enable interrupt while channel error occurs. */ + kEDMA_MajorInterruptEnable = DMA_CSR_INTMAJOR_MASK, /*!< Enable interrupt while major count exhausted. */ + kEDMA_HalfInterruptEnable = DMA_CSR_INTHALF_MASK, /*!< Enable interrupt while major count to half value. */ +} edma_interrupt_enable_t; + +/*! @brief eDMA transfer type */ +typedef enum _edma_transfer_type +{ + kEDMA_MemoryToMemory = 0x0U, /*!< Transfer from memory to memory */ + kEDMA_PeripheralToMemory, /*!< Transfer from peripheral to memory */ + kEDMA_MemoryToPeripheral, /*!< Transfer from memory to peripheral */ +} edma_transfer_type_t; + +/*! @brief eDMA transfer status */ +enum _edma_transfer_status +{ + kStatus_EDMA_QueueFull = MAKE_STATUS(kStatusGroup_EDMA, 0), /*!< TCD queue is full. */ + kStatus_EDMA_Busy = MAKE_STATUS(kStatusGroup_EDMA, 1), /*!< Channel is busy and can't handle the + transfer request. */ +}; + +/*! @brief eDMA global configuration structure.*/ +typedef struct _edma_config +{ + bool enableContinuousLinkMode; /*!< Enable (true) continuous link mode. Upon minor loop completion, the channel + activates again if that channel has a minor loop channel link enabled and + the link channel is itself. */ + bool enableHaltOnError; /*!< Enable (true) transfer halt on error. Any error causes the HALT bit to set. + Subsequently, all service requests are ignored until the HALT bit is cleared.*/ + bool enableRoundRobinArbitration; /*!< Enable (true) round robin channel arbitration method, or fixed priority + arbitration is used for channel selection */ + bool enableDebugMode; /*!< Enable(true) eDMA debug mode. When in debug mode, the eDMA stalls the start of + a new channel. Executing channels are allowed to complete. */ +} edma_config_t; + +/*! + * @brief eDMA transfer configuration + * + * This structure configures the source/destination transfer attribute. + * This figure shows the eDMA's transfer model: + * _________________________________________________ + * | Transfer Size | | + * Minor Loop |_______________| Major loop Count 1 | + * Bytes | Transfer Size | | + * ____________|_______________|____________________|--> Minor loop complete + * ____________________________________ + * | | | + * |_______________| Major Loop Count 2 | + * | | | + * |_______________|____________________|--> Minor loop Complete + * + * ---------------------------------------------------------> Transfer complete + */ +typedef struct _edma_transfer_config +{ + uint32_t srcAddr; /*!< Source data address. */ + uint32_t destAddr; /*!< Destination data address. */ + edma_transfer_size_t srcTransferSize; /*!< Source data transfer size. */ + edma_transfer_size_t destTransferSize; /*!< Destination data transfer size. */ + int16_t srcOffset; /*!< Sign-extended offset applied to the current source address to + form the next-state value as each source read is completed. */ + int16_t destOffset; /*!< Sign-extended offset applied to the current destination address to + form the next-state value as each destination write is completed. */ + uint16_t minorLoopBytes; /*!< Bytes to transfer in a minor loop*/ + uint32_t majorLoopCounts; /*!< Major loop iteration count. */ +} edma_transfer_config_t; + +/*! @brief eDMA channel priority configuration */ +typedef struct _edma_channel_Preemption_config +{ + bool enableChannelPreemption; /*!< If true: channel can be suspended by other channel with higher priority */ + bool enablePreemptAbility; /*!< If true: channel can suspend other channel with low priority */ + uint8_t channelPriority; /*!< Channel priority */ +} edma_channel_Preemption_config_t; + +/*! @brief eDMA minor offset configuration */ +typedef struct _edma_minor_offset_config +{ + bool enableSrcMinorOffset; /*!< Enable(true) or Disable(false) source minor loop offset. */ + bool enableDestMinorOffset; /*!< Enable(true) or Disable(false) destination minor loop offset. */ + uint32_t minorOffset; /*!< Offset for minor loop mapping. */ +} edma_minor_offset_config_t; + +/*! + * @brief eDMA TCD. + * + * This structure is same as TCD register which is described in reference manual, + * and is used to configure the scatter/gather feature as a next hardware TCD. + */ +typedef struct _edma_tcd +{ + __IO uint32_t SADDR; /*!< SADDR register, used to save source address */ + __IO uint16_t SOFF; /*!< SOFF register, save offset bytes every transfer */ + __IO uint16_t ATTR; /*!< ATTR register, source/destination transfer size and modulo */ + __IO uint32_t NBYTES; /*!< Nbytes register, minor loop length in bytes */ + __IO uint32_t SLAST; /*!< SLAST register */ + __IO uint32_t DADDR; /*!< DADDR register, used for destination address */ + __IO uint16_t DOFF; /*!< DOFF register, used for destination offset */ + __IO uint16_t CITER; /*!< CITER register, current minor loop numbers, for unfinished minor loop.*/ + __IO uint32_t DLAST_SGA; /*!< DLASTSGA register, next stcd address used in scatter-gather mode */ + __IO uint16_t CSR; /*!< CSR register, for TCD control status */ + __IO uint16_t BITER; /*!< BITER register, begin minor loop count. */ +} edma_tcd_t; + +/*! @brief Callback for eDMA */ +struct _edma_handle; + +/*! @brief Define Callback function for eDMA. */ +typedef void (*edma_callback)(struct _edma_handle *handle, void *userData, bool transferDone, uint32_t tcds); + +/*! @brief eDMA transfer handle structure */ +typedef struct _edma_handle +{ + edma_callback callback; /*!< Callback function for major count exhausted. */ + void *userData; /*!< Callback function parameter. */ + DMA_Type *base; /*!< eDMA peripheral base address. */ + edma_tcd_t *tcdPool; /*!< Pointer to memory stored TCDs. */ + uint8_t channel; /*!< eDMA channel number. */ + volatile int8_t header; /*!< The first TCD index. */ + volatile int8_t tail; /*!< The last TCD index. */ + volatile int8_t tcdUsed; /*!< The number of used TCD slots. */ + volatile int8_t tcdSize; /*!< The total number of TCD slots in the queue. */ + uint8_t flags; /*!< The status of the current channel. */ +} edma_handle_t; + +/******************************************************************************* + * APIs + ******************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif /* __cplusplus */ + +/*! + * @name eDMA initialization and De-initialization + * @{ + */ + +/*! + * @brief Initializes eDMA peripheral. + * + * This function ungates the eDMA clock and configures the eDMA peripheral according + * to the configuration structure. + * + * @param base eDMA peripheral base address. + * @param config Pointer to configuration structure, see "edma_config_t". + * @note This function enable the minor loop map feature. + */ +void EDMA_Init(DMA_Type *base, const edma_config_t *config); + +/*! + * @brief Deinitializes eDMA peripheral. + * + * This function gates the eDMA clock. + * + * @param base eDMA peripheral base address. + */ +void EDMA_Deinit(DMA_Type *base); + +/*! + * @brief Gets the eDMA default configuration structure. + * + * This function sets the configuration structure to a default value. + * The default configuration is set to the following value: + * @code + * config.enableContinuousLinkMode = false; + * config.enableHaltOnError = true; + * config.enableRoundRobinArbitration = false; + * config.enableDebugMode = false; + * @endcode + * + * @param config Pointer to eDMA configuration structure. + */ +void EDMA_GetDefaultConfig(edma_config_t *config); + +/* @} */ +/*! + * @name eDMA Channel Operation + * @{ + */ + +/*! + * @brief Sets all TCD registers to a default value. + * + * This function sets TCD registers for this channel to default value. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + * @note This function must not be called while the channel transfer is on-going, + * or it causes unpredictable results. + * @note This function enables the auto stop request feature. + */ +void EDMA_ResetChannel(DMA_Type *base, uint32_t channel); + +/*! + * @brief Configures the eDMA transfer attribute. + * + * This function configures the transfer attribute, including source address, destination address, + * transfer size, address offset, and so on. It also configures the scatter gather feature if the + * user supplies the TCD address. + * Example: + * @code + * edma_transfer_t config; + * edma_tcd_t tcd; + * config.srcAddr = ..; + * config.destAddr = ..; + * ... + * EDMA_SetTransferConfig(DMA0, channel, &config, &stcd); + * @endcode + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + * @param config Pointer to eDMA transfer configuration structure. + * @param nextTcd Point to TCD structure. It can be NULL if users + * do not want to enable scatter/gather feature. + * @note If nextTcd is not NULL, it means scatter gather feature is enabled + * and DREQ bit is cleared in the previous transfer configuration, which + * is set in eDMA_ResetChannel. + */ +void EDMA_SetTransferConfig(DMA_Type *base, + uint32_t channel, + const edma_transfer_config_t *config, + edma_tcd_t *nextTcd); + +/*! + * @brief Configures the eDMA minor offset feature. + * + * Minor offset means signed-extended value added to source address or destination + * address after each minor loop. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + * @param config Pointer to Minor offset configuration structure. + */ +void EDMA_SetMinorOffsetConfig(DMA_Type *base, uint32_t channel, const edma_minor_offset_config_t *config); + +/*! + * @brief Configures the eDMA channel preemption feature. + * + * This function configures the channel preemption attribute and the priority of the channel. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number + * @param config Pointer to channel preemption configuration structure. + */ +static inline void EDMA_SetChannelPreemptionConfig(DMA_Type *base, + uint32_t channel, + const edma_channel_Preemption_config_t *config) +{ + assert(channel < FSL_FEATURE_EDMA_MODULE_CHANNEL); + assert(config != NULL); + + DMA_DCHPRIn(base, channel) = + (DMA_DCHPRI0_DPA(!config->enablePreemptAbility) | DMA_DCHPRI0_ECP(config->enableChannelPreemption) | + DMA_DCHPRI0_CHPRI(config->channelPriority)); +} + +/*! + * @brief Sets the channel link for the eDMA transfer. + * + * This function configures minor link or major link mode. The minor link means that the channel link is + * triggered every time CITER decreases by 1. The major link means that the channel link is triggered when the CITER is + * exhausted. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + * @param type Channel link type, it can be one of: + * @arg kEDMA_LinkNone + * @arg kEDMA_MinorLink + * @arg kEDMA_MajorLink + * @param linkedChannel The linked channel number. + * @note Users should ensure that DONE flag is cleared before calling this interface, or the configuration is invalid. + */ +void EDMA_SetChannelLink(DMA_Type *base, uint32_t channel, edma_channel_link_type_t type, uint32_t linkedChannel); + +/*! + * @brief Sets the bandwidth for the eDMA transfer. + * + * In general, because the eDMA processes the minor loop, it continuously generates read/write sequences + * until the minor count is exhausted. The bandwidth forces the eDMA to stall after the completion of + * each read/write access to control the bus request bandwidth seen by the crossbar switch. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + * @param bandWidth Bandwidth setting, it can be one of: + * @arg kEDMABandwidthStallNone + * @arg kEDMABandwidthStall4Cycle + * @arg kEDMABandwidthStall8Cycle + */ +void EDMA_SetBandWidth(DMA_Type *base, uint32_t channel, edma_bandwidth_t bandWidth); + +/*! + * @brief Sets the source modulo and destination modulo for eDMA transfer. + * + * This function defines a specific address range specified to be the value after (SADDR + SOFF)/(DADDR + DOFF) + * calculation is performed or the original register value. It provides the ability to implement a circular data + * queue easily. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + * @param srcModulo Source modulo value. + * @param destModulo Destination modulo value. + */ +void EDMA_SetModulo(DMA_Type *base, uint32_t channel, edma_modulo_t srcModulo, edma_modulo_t destModulo); + +#if defined(FSL_FEATURE_EDMA_ASYNCHRO_REQUEST_CHANNEL_COUNT) && FSL_FEATURE_EDMA_ASYNCHRO_REQUEST_CHANNEL_COUNT +/*! + * @brief Enables an async request for the eDMA transfer. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + * @param enable The command for enable(ture) or disable(false). + */ +static inline void EDMA_EnableAsyncRequest(DMA_Type *base, uint32_t channel, bool enable) +{ + assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->EARS = (base->EARS & (~(1U << channel))) | ((uint32_t)enable << channel); +} +#endif /* FSL_FEATURE_EDMA_ASYNCHRO_REQUEST_CHANNEL_COUNT */ + +/*! + * @brief Enables an auto stop request for the eDMA transfer. + * + * If enabling the auto stop request, the eDMA hardware automatically disables the hardware channel request. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + * @param enable The command for enable (true) or disable (false). + */ +static inline void EDMA_EnableAutoStopRequest(DMA_Type *base, uint32_t channel, bool enable) +{ + assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->TCD[channel].CSR = (base->TCD[channel].CSR & (~DMA_CSR_DREQ_MASK)) | DMA_CSR_DREQ(enable); +} + +/*! + * @brief Enables the interrupt source for the eDMA transfer. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + * @param mask The mask of interrupt source to be set. Users need to use + * the defined edma_interrupt_enable_t type. + */ +void EDMA_EnableChannelInterrupts(DMA_Type *base, uint32_t channel, uint32_t mask); + +/*! + * @brief Disables the interrupt source for the eDMA transfer. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + * @param mask The mask of interrupt source to be set. Use + * the defined edma_interrupt_enable_t type. + */ +void EDMA_DisableChannelInterrupts(DMA_Type *base, uint32_t channel, uint32_t mask); + +/* @} */ +/*! + * @name eDMA TCD Operation + * @{ + */ + +/*! + * @brief Sets all fields to default values for the TCD structure. + * + * This function sets all fields for this TCD structure to default value. + * + * @param tcd Pointer to the TCD structure. + * @note This function enables the auto stop request feature. + */ +void EDMA_TcdReset(edma_tcd_t *tcd); + +/*! + * @brief Configures the eDMA TCD transfer attribute. + * + * TCD is a transfer control descriptor. The content of the TCD is the same as hardware TCD registers. + * STCD is used in scatter-gather mode. + * This function configures the TCD transfer attribute, including source address, destination address, + * transfer size, address offset, and so on. It also configures the scatter gather feature if the + * user supplies the next TCD address. + * Example: + * @code + * edma_transfer_t config = { + * ... + * } + * edma_tcd_t tcd __aligned(32); + * edma_tcd_t nextTcd __aligned(32); + * EDMA_TcdSetTransferConfig(&tcd, &config, &nextTcd); + * @endcode + * + * @param tcd Pointer to the TCD structure. + * @param config Pointer to eDMA transfer configuration structure. + * @param nextTcd Pointer to the next TCD structure. It can be NULL if users + * do not want to enable scatter/gather feature. + * @note TCD address should be 32 bytes aligned, or it causes an eDMA error. + * @note If the nextTcd is not NULL, the scatter gather feature is enabled + * and DREQ bit is cleared in the previous transfer configuration, which + * is set in the EDMA_TcdReset. + */ +void EDMA_TcdSetTransferConfig(edma_tcd_t *tcd, const edma_transfer_config_t *config, edma_tcd_t *nextTcd); + +/*! + * @brief Configures the eDMA TCD minor offset feature. + * + * Minor offset is a signed-extended value added to the source address or destination + * address after each minor loop. + * + * @param tcd Point to the TCD structure. + * @param config Pointer to Minor offset configuration structure. + */ +void EDMA_TcdSetMinorOffsetConfig(edma_tcd_t *tcd, const edma_minor_offset_config_t *config); + +/*! + * @brief Sets the channel link for eDMA TCD. + * + * This function configures either a minor link or a major link. The minor link means the channel link is + * triggered every time CITER decreases by 1. The major link means that the channel link is triggered when the CITER is + * exhausted. + * + * @note Users should ensure that DONE flag is cleared before calling this interface, or the configuration is invalid. + * @param tcd Point to the TCD structure. + * @param type Channel link type, it can be one of: + * @arg kEDMA_LinkNone + * @arg kEDMA_MinorLink + * @arg kEDMA_MajorLink + * @param linkedChannel The linked channel number. + */ +void EDMA_TcdSetChannelLink(edma_tcd_t *tcd, edma_channel_link_type_t type, uint32_t linkedChannel); + +/*! + * @brief Sets the bandwidth for the eDMA TCD. + * + * In general, because the eDMA processes the minor loop, it continuously generates read/write sequences + * until the minor count is exhausted. Bandwidth forces the eDMA to stall after the completion of + * each read/write access to control the bus request bandwidth seen by the crossbar switch. + * @param tcd Point to the TCD structure. + * @param bandWidth Bandwidth setting, it can be one of: + * @arg kEDMABandwidthStallNone + * @arg kEDMABandwidthStall4Cycle + * @arg kEDMABandwidthStall8Cycle + */ +static inline void EDMA_TcdSetBandWidth(edma_tcd_t *tcd, edma_bandwidth_t bandWidth) +{ + assert(tcd != NULL); + assert(((uint32_t)tcd & 0x1FU) == 0); + + tcd->CSR = (tcd->CSR & (~DMA_CSR_BWC_MASK)) | DMA_CSR_BWC(bandWidth); +} + +/*! + * @brief Sets the source modulo and destination modulo for eDMA TCD. + * + * This function defines a specific address range specified to be the value after (SADDR + SOFF)/(DADDR + DOFF) + * calculation is performed or the original register value. It provides the ability to implement a circular data + * queue easily. + * + * @param tcd Point to the TCD structure. + * @param srcModulo Source modulo value. + * @param destModulo Destination modulo value. + */ +void EDMA_TcdSetModulo(edma_tcd_t *tcd, edma_modulo_t srcModulo, edma_modulo_t destModulo); + +/*! + * @brief Sets the auto stop request for the eDMA TCD. + * + * If enabling the auto stop request, the eDMA hardware automatically disables the hardware channel request. + * + * @param tcd Point to the TCD structure. + * @param enable The command for enable(ture) or disable(false). + */ +static inline void EDMA_TcdEnableAutoStopRequest(edma_tcd_t *tcd, bool enable) +{ + assert(tcd != NULL); + assert(((uint32_t)tcd & 0x1FU) == 0); + + tcd->CSR = (tcd->CSR & (~DMA_CSR_DREQ_MASK)) | DMA_CSR_DREQ(enable); +} + +/*! + * @brief Enables the interrupt source for the eDMA TCD. + * + * @param tcd Point to the TCD structure. + * @param mask The mask of interrupt source to be set. Users need to use + * the defined edma_interrupt_enable_t type. + */ +void EDMA_TcdEnableInterrupts(edma_tcd_t *tcd, uint32_t mask); + +/*! + * @brief Disables the interrupt source for the eDMA TCD. + * + * @param tcd Point to the TCD structure. + * @param mask The mask of interrupt source to be set. Users need to use + * the defined edma_interrupt_enable_t type. + */ +void EDMA_TcdDisableInterrupts(edma_tcd_t *tcd, uint32_t mask); + +/*! @} */ +/*! + * @name eDMA Channel Transfer Operation + * @{ + */ + +/*! + * @brief Enables the eDMA hardware channel request. + * + * This function enables the hardware channel request. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + */ +static inline void EDMA_EnableChannelRequest(DMA_Type *base, uint32_t channel) +{ + assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->SERQ = DMA_SERQ_SERQ(channel); +} + +/*! + * @brief Disables the eDMA hardware channel request. + * + * This function disables the hardware channel request. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + */ +static inline void EDMA_DisableChannelRequest(DMA_Type *base, uint32_t channel) +{ + assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->CERQ = DMA_CERQ_CERQ(channel); +} + +/*! + * @brief Starts the eDMA transfer by software trigger. + * + * This function starts a minor loop transfer. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + */ +static inline void EDMA_TriggerChannelStart(DMA_Type *base, uint32_t channel) +{ + assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL); + + base->SSRT = DMA_SSRT_SSRT(channel); +} + +/*! @} */ +/*! + * @name eDMA Channel Status Operation + * @{ + */ + +/*! + * @brief Gets the Remaining bytes from the eDMA current channel TCD. + * + * This function checks the TCD (Task Control Descriptor) status for a specified + * eDMA channel and returns the the number of bytes that have not finished. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + * @return Bytes have not been transferred yet for the current TCD. + * @note This function can only be used to get unfinished bytes of transfer without + * the next TCD, or it might be inaccuracy. + */ +uint32_t EDMA_GetRemainingBytes(DMA_Type *base, uint32_t channel); + +/*! + * @brief Gets the eDMA channel error status flags. + * + * @param base eDMA peripheral base address. + * @return The mask of error status flags. Users need to use the + * _edma_error_status_flags type to decode the return variables. + */ +static inline uint32_t EDMA_GetErrorStatusFlags(DMA_Type *base) +{ + return base->ES; +} + +/*! + * @brief Gets the eDMA channel status flags. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + * @return The mask of channel status flags. Users need to use the + * _edma_channel_status_flags type to decode the return variables. + */ +uint32_t EDMA_GetChannelStatusFlags(DMA_Type *base, uint32_t channel); + +/*! + * @brief Clears the eDMA channel status flags. + * + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + * @param mask The mask of channel status to be cleared. Users need to use + * the defined _edma_channel_status_flags type. + */ +void EDMA_ClearChannelStatusFlags(DMA_Type *base, uint32_t channel, uint32_t mask); + +/*! @} */ +/*! + * @name eDMA Transactional Operation + */ + +/*! + * @brief Creates the eDMA handle. + * + * This function is called if using transaction API for eDMA. This function + * initializes the internal state of eDMA handle. + * + * @param handle eDMA handle pointer. The eDMA handle stores callback function and + * parameters. + * @param base eDMA peripheral base address. + * @param channel eDMA channel number. + */ +void EDMA_CreateHandle(edma_handle_t *handle, DMA_Type *base, uint32_t channel); + +/*! + * @brief Installs the TCDs memory pool into eDMA handle. + * + * This function is called after the EDMA_CreateHandle to use scatter/gather feature. + * + * @param handle eDMA handle pointer. + * @param tcdPool Memory pool to store TCDs. It must be 32 bytes aligned. + * @param tcdSize The number of TCD slots. + */ +void EDMA_InstallTCDMemory(edma_handle_t *handle, edma_tcd_t *tcdPool, uint32_t tcdSize); + +/*! + * @brief Installs a callback function for the eDMA transfer. + * + * This callback is called in eDMA IRQ handler. Use the callback to do something after + * the current major loop transfer completes. + * + * @param handle eDMA handle pointer. + * @param callback eDMA callback function pointer. + * @param userData Parameter for callback function. + */ +void EDMA_SetCallback(edma_handle_t *handle, edma_callback callback, void *userData); + +/*! + * @brief Prepares the eDMA transfer structure. + * + * This function prepares the transfer configuration structure according to the user input. + * + * @param config The user configuration structure of type edma_transfer_t. + * @param srcAddr eDMA transfer source address. + * @param srcWidth eDMA transfer source address width(bytes). + * @param destAddr eDMA transfer destination address. + * @param destWidth eDMA transfer destination address width(bytes). + * @param bytesEachRequest eDMA transfer bytes per channel request. + * @param transferBytes eDMA transfer bytes to be transferred. + * @param type eDMA transfer type. + * @note The data address and the data width must be consistent. For example, if the SRC + * is 4 bytes, so the source address must be 4 bytes aligned, or it shall result in + * source address error(SAE). + */ +void EDMA_PrepareTransfer(edma_transfer_config_t *config, + void *srcAddr, + uint32_t srcWidth, + void *destAddr, + uint32_t destWidth, + uint32_t bytesEachRequest, + uint32_t transferBytes, + edma_transfer_type_t type); + +/*! + * @brief Submits the eDMA transfer request. + * + * This function submits the eDMA transfer request according to the transfer configuration structure. + * If the user submits the transfer request repeatedly, this function packs an unprocessed request as + * a TCD and enables scatter/gather feature to process it in the next time. + * + * @param handle eDMA handle pointer. + * @param config Pointer to eDMA transfer configuration structure. + * @retval kStatus_EDMA_Success It means submit transfer request succeed. + * @retval kStatus_EDMA_QueueFull It means TCD queue is full. Submit transfer request is not allowed. + * @retval kStatus_EDMA_Busy It means the given channel is busy, need to submit request later. + */ +status_t EDMA_SubmitTransfer(edma_handle_t *handle, const edma_transfer_config_t *config); + +/*! + * @brief eDMA start transfer. + * + * This function enables the channel request. Users can call this function after submitting the transfer request + * or before submitting the transfer request. + * + * @param handle eDMA handle pointer. + */ +void EDMA_StartTransfer(edma_handle_t *handle); + +/*! + * @brief eDMA stop transfer. + * + * This function disables the channel request to pause the transfer. Users can call EDMA_StartTransfer() + * again to resume the transfer. + * + * @param handle eDMA handle pointer. + */ +void EDMA_StopTransfer(edma_handle_t *handle); + +/*! + * @brief eDMA abort transfer. + * + * This function disables the channel request and clear transfer status bits. + * Users can submit another transfer after calling this API. + * + * @param handle DMA handle pointer. + */ +void EDMA_AbortTransfer(edma_handle_t *handle); + +/*! + * @brief eDMA IRQ handler for current major loop transfer complete. + * + * This function clears the channel major interrupt flag and call + * the callback function if it is not NULL. + * + * @param handle eDMA handle pointer. + */ +void EDMA_HandleIRQ(edma_handle_t *handle); + +/* @} */ + +#if defined(__cplusplus) +} +#endif /* __cplusplus */ + +/* @} */ + +#endif /*_FSL_EDMA_H_*/ diff --git a/drivers/fsl_ewm.c b/drivers/fsl_ewm.c new file mode 100644 index 0000000..1a71a07 --- /dev/null +++ b/drivers/fsl_ewm.c @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_ewm.h" + +/******************************************************************************* + * Code + ******************************************************************************/ + +void EWM_Init(EWM_Type *base, const ewm_config_t *config) +{ + assert(config); + + uint32_t value = 0U; + + CLOCK_EnableClock(kCLOCK_Ewm0); + value = EWM_CTRL_EWMEN(config->enableEwm) | EWM_CTRL_ASSIN(config->setInputAssertLogic) | + EWM_CTRL_INEN(config->enableEwmInput) | EWM_CTRL_INTEN(config->enableInterrupt); +#if defined(FSL_FEATURE_EWM_HAS_PRESCALER) && FSL_FEATURE_EWM_HAS_PRESCALER + base->CLKPRESCALER = config->prescaler; +#endif /* FSL_FEATURE_EWM_HAS_PRESCALER */ + +#if defined(FSL_FEATURE_EWM_HAS_CLOCK_SELECT) && FSL_FEATURE_EWM_HAS_CLOCK_SELECT + base->CLKCTRL = config->clockSource; +#endif /* FSL_FEATURE_EWM_HAS_CLOCK_SELECT*/ + + base->CMPL = config->compareLowValue; + base->CMPH = config->compareHighValue; + base->CTRL = value; +} + +void EWM_Deinit(EWM_Type *base) +{ + EWM_DisableInterrupts(base, kEWM_InterruptEnable); + CLOCK_DisableClock(kCLOCK_Ewm0); +} + +void EWM_GetDefaultConfig(ewm_config_t *config) +{ + assert(config); + + config->enableEwm = true; + config->enableEwmInput = false; + config->setInputAssertLogic = false; + config->enableInterrupt = false; +#if defined(FSL_FEATURE_EWM_HAS_CLOCK_SELECT) && FSL_FEATURE_EWM_HAS_CLOCK_SELECT + config->clockSource = kEWM_LpoClockSource0; +#endif /* FSL_FEATURE_EWM_HAS_CLOCK_SELECT*/ +#if defined(FSL_FEATURE_EWM_HAS_PRESCALER) && FSL_FEATURE_EWM_HAS_PRESCALER + config->prescaler = 0U; +#endif /* FSL_FEATURE_EWM_HAS_PRESCALER */ + config->compareLowValue = 0U; + config->compareHighValue = 0xFEU; +} + +void EWM_Refresh(EWM_Type *base) +{ + uint32_t primaskValue = 0U; + + /* Disable the global interrupt to protect refresh sequence */ + primaskValue = DisableGlobalIRQ(); + base->SERV = (uint8_t)0xB4U; + base->SERV = (uint8_t)0x2CU; + EnableGlobalIRQ(primaskValue); +} diff --git a/drivers/fsl_ewm.h b/drivers/fsl_ewm.h new file mode 100644 index 0000000..180575e --- /dev/null +++ b/drivers/fsl_ewm.h @@ -0,0 +1,241 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_EWM_H_ +#define _FSL_EWM_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup ewm + * @{ + */ + + +/******************************************************************************* + * Definitions + *******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief EWM driver version 2.0.1. */ +#define FSL_EWM_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) +/*@}*/ + +/*! @brief Describes EWM clock source. */ +#if defined(FSL_FEATURE_EWM_HAS_CLOCK_SELECT) && FSL_FEATURE_EWM_HAS_CLOCK_SELECT +typedef enum _ewm_lpo_clock_source +{ + kEWM_LpoClockSource0 = 0U, /*!< EWM clock sourced from lpo_clk[0]*/ + kEWM_LpoClockSource1 = 1U, /*!< EWM clock sourced from lpo_clk[1]*/ + kEWM_LpoClockSource2 = 2U, /*!< EWM clock sourced from lpo_clk[2]*/ + kEWM_LpoClockSource3 = 3U, /*!< EWM clock sourced from lpo_clk[3]*/ +} ewm_lpo_clock_source_t; +#endif /* FSL_FEATURE_EWM_HAS_CLOCK_SELECT */ + +/*! +* @brief Data structure for EWM configuration. +* +* This structure is used to configure the EWM. +*/ +typedef struct _ewm_config +{ + bool enableEwm; /*!< Enable EWM module */ + bool enableEwmInput; /*!< Enable EWM_in input */ + bool setInputAssertLogic; /*!< EWM_in signal assertion state */ + bool enableInterrupt; /*!< Enable EWM interrupt */ +#if defined(FSL_FEATURE_EWM_HAS_CLOCK_SELECT) && FSL_FEATURE_EWM_HAS_CLOCK_SELECT + ewm_lpo_clock_source_t clockSource; /*!< Clock source select */ +#endif /* FSL_FEATURE_EWM_HAS_CLOCK_SELECT */ +#if defined(FSL_FEATURE_EWM_HAS_PRESCALER) && FSL_FEATURE_EWM_HAS_PRESCALER + uint8_t prescaler; /*!< Clock prescaler value */ +#endif /* FSL_FEATURE_EWM_HAS_PRESCALER */ + uint8_t compareLowValue; /*!< Compare low-register value */ + uint8_t compareHighValue; /*!< Compare high-register value */ +} ewm_config_t; + +/*! + * @brief EWM interrupt configuration structure, default settings all disabled. + * + * This structure contains the settings for all of the EWM interrupt configurations. + */ +enum _ewm_interrupt_enable_t +{ + kEWM_InterruptEnable = EWM_CTRL_INTEN_MASK, /*!< Enable EWM to generate an interrupt*/ +}; + +/*! + * @brief EWM status flags. + * + * This structure contains the constants for the EWM status flags for use in the EWM functions. + */ +enum _ewm_status_flags_t +{ + kEWM_RunningFlag = EWM_CTRL_EWMEN_MASK, /*!< Running flag, set when EWM is enabled*/ +}; + +/******************************************************************************* + * API + *******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /* __cplusplus */ + +/*! + * @name EWM Initialization and De-initialization + * @{ + */ + +/*! + * @brief Initializes the EWM peripheral. + * + * This function is used to initialize the EWM. After calling, the EWM + * runs immediately according to the configuration. + * Note that except for interrupt enable control bit, other control bits and registers are write once after a + * CPU reset. Modifying them more than once generates a bus transfer error. + * + * Example: + * @code + * ewm_config_t config; + * EWM_GetDefaultConfig(&config); + * config.compareHighValue = 0xAAU; + * EWM_Init(ewm_base,&config); + * @endcode + * + * @param base EWM peripheral base address + * @param config The configuration of EWM +*/ +void EWM_Init(EWM_Type *base, const ewm_config_t *config); + +/*! + * @brief Deinitializes the EWM peripheral. + * + * This function is used to shut down the EWM. + * + * @param base EWM peripheral base address +*/ +void EWM_Deinit(EWM_Type *base); + +/*! + * @brief Initializes the EWM configuration structure. + * + * This function initializes the EWM configuration structure to default values. The default + * values are: + * @code + * ewmConfig->enableEwm = true; + * ewmConfig->enableEwmInput = false; + * ewmConfig->setInputAssertLogic = false; + * ewmConfig->enableInterrupt = false; + * ewmConfig->ewm_lpo_clock_source_t = kEWM_LpoClockSource0; + * ewmConfig->prescaler = 0; + * ewmConfig->compareLowValue = 0; + * ewmConfig->compareHighValue = 0xFEU; + * @endcode + * + * @param config Pointer to EWM configuration structure. + * @see ewm_config_t + */ +void EWM_GetDefaultConfig(ewm_config_t *config); + +/* @} */ + +/*! + * @name EWM functional Operation + * @{ + */ + +/*! + * @brief Enables the EWM interrupt. + * + * This function enables the EWM interrupt. + * + * @param base EWM peripheral base address + * @param mask The interrupts to enable + * The parameter can be combination of the following source if defined: + * @arg kEWM_InterruptEnable + */ +static inline void EWM_EnableInterrupts(EWM_Type *base, uint32_t mask) +{ + base->CTRL |= mask; +} + +/*! + * @brief Disables the EWM interrupt. + * + * This function enables the EWM interrupt. + * + * @param base EWM peripheral base address + * @param mask The interrupts to disable + * The parameter can be combination of the following source if defined: + * @arg kEWM_InterruptEnable + */ +static inline void EWM_DisableInterrupts(EWM_Type *base, uint32_t mask) +{ + base->CTRL &= ~mask; +} + +/*! + * @brief Gets EWM all status flags. + * + * This function gets all status flags. + * + * Example for getting Running Flag: + * @code + * uint32_t status; + * status = EWM_GetStatusFlags(ewm_base) & kEWM_RunningFlag; + * @endcode + * @param base EWM peripheral base address + * @return State of the status flag: asserted (true) or not-asserted (false).@see _ewm_status_flags_t + * - true: a related status flag has been set. + * - false: a related status flag is not set. + */ +static inline uint32_t EWM_GetStatusFlags(EWM_Type *base) +{ + return (base->CTRL & EWM_CTRL_EWMEN_MASK); +} + +/*! + * @brief Services the EWM. + * + * This function reset EWM counter to zero. + * + * @param base EWM peripheral base address +*/ +void EWM_Refresh(EWM_Type *base); + +/*@}*/ + +#if defined(__cplusplus) +} +#endif /* __cplusplus */ + +/*! @}*/ + +#endif /* _FSL_EWM_H_ */ diff --git a/drivers/fsl_flash.c b/drivers/fsl_flash.c new file mode 100644 index 0000000..9251c49 --- /dev/null +++ b/drivers/fsl_flash.c @@ -0,0 +1,2630 @@ +/* + * Copyright (c) 2015-2016, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_flash.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! + * @name Misc utility defines + * @{ + */ +#ifndef ALIGN_DOWN +#define ALIGN_DOWN(x, a) ((x) & (uint32_t)(-((int32_t)(a)))) +#endif +#ifndef ALIGN_UP +#define ALIGN_UP(x, a) (-((int32_t)((uint32_t)(-((int32_t)(x))) & (uint32_t)(-((int32_t)(a)))))) +#endif + +#define BYTES_JOIN_TO_WORD_1_3(x, y) ((((uint32_t)(x)&0xFFU) << 24) | ((uint32_t)(y)&0xFFFFFFU)) +#define BYTES_JOIN_TO_WORD_2_2(x, y) ((((uint32_t)(x)&0xFFFFU) << 16) | ((uint32_t)(y)&0xFFFFU)) +#define BYTES_JOIN_TO_WORD_3_1(x, y) ((((uint32_t)(x)&0xFFFFFFU) << 8) | ((uint32_t)(y)&0xFFU)) +#define BYTES_JOIN_TO_WORD_1_1_2(x, y, z) \ + ((((uint32_t)(x)&0xFFU) << 24) | (((uint32_t)(y)&0xFFU) << 16) | ((uint32_t)(z)&0xFFFFU)) +#define BYTES_JOIN_TO_WORD_1_2_1(x, y, z) \ + ((((uint32_t)(x)&0xFFU) << 24) | (((uint32_t)(y)&0xFFFFU) << 8) | ((uint32_t)(z)&0xFFU)) +#define BYTES_JOIN_TO_WORD_2_1_1(x, y, z) \ + ((((uint32_t)(x)&0xFFFFU) << 16) | (((uint32_t)(y)&0xFFU) << 8) | ((uint32_t)(z)&0xFFU)) +#define BYTES_JOIN_TO_WORD_1_1_1_1(x, y, z, w) \ + ((((uint32_t)(x)&0xFFU) << 24) | (((uint32_t)(y)&0xFFU) << 16) | (((uint32_t)(z)&0xFFU) << 8) | \ + ((uint32_t)(w)&0xFFU)) +/*@}*/ + +/*! @brief Data flash IFR map Field*/ +#if defined(FSL_FEATURE_FLASH_IS_FTFE) && FSL_FEATURE_FLASH_IS_FTFE +#define DFLASH_IFR_READRESOURCE_START_ADDRESS 0x8003F8U +#else /* FSL_FEATURE_FLASH_IS_FTFL == 1 or FSL_FEATURE_FLASH_IS_FTFA = =1 */ +#define DFLASH_IFR_READRESOURCE_START_ADDRESS 0x8000F8U +#endif + +/*! + * @name Reserved FlexNVM size (For a variety of purposes) defines + * @{ + */ +#define FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED 0xFFFFFFFFU +#define FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_RESERVED 0xFFFFU +/*@}*/ + +/*! + * @name Flash Program Once Field defines + * @{ + */ +#if defined(FSL_FEATURE_FLASH_IS_FTFA) && FSL_FEATURE_FLASH_IS_FTFA +/* FTFA parts(eg. K80, KL80, L5K) support both 4-bytes and 8-bytes unit size */ +#define FLASH_PROGRAM_ONCE_MIN_ID_8BYTES \ + 0x10U /* Minimum Index indcating one of Progam Once Fields which is accessed in 8-byte records */ +#define FLASH_PROGRAM_ONCE_MAX_ID_8BYTES \ + 0x13U /* Maximum Index indcating one of Progam Once Fields which is accessed in 8-byte records */ +#define FLASH_PROGRAM_ONCE_IS_4BYTES_UNIT_SUPPORT 1 +#define FLASH_PROGRAM_ONCE_IS_8BYTES_UNIT_SUPPORT 1 +#elif defined(FSL_FEATURE_FLASH_IS_FTFE) && FSL_FEATURE_FLASH_IS_FTFE +/* FTFE parts(eg. K65, KE18) only support 8-bytes unit size */ +#define FLASH_PROGRAM_ONCE_IS_4BYTES_UNIT_SUPPORT 0 +#define FLASH_PROGRAM_ONCE_IS_8BYTES_UNIT_SUPPORT 1 +#elif defined(FSL_FEATURE_FLASH_IS_FTFL) && FSL_FEATURE_FLASH_IS_FTFL +/* FTFL parts(eg. K20) only support 4-bytes unit size */ +#define FLASH_PROGRAM_ONCE_IS_4BYTES_UNIT_SUPPORT 1 +#define FLASH_PROGRAM_ONCE_IS_8BYTES_UNIT_SUPPORT 0 +#endif +/*@}*/ + +/*! + * @name Flash security status defines + * @{ + */ +#define FLASH_SECURITY_STATE_KEYEN 0x80U +#define FLASH_SECURITY_STATE_UNSECURED 0x02U +#define FLASH_NOT_SECURE 0x01U +#define FLASH_SECURE_BACKDOOR_ENABLED 0x02U +#define FLASH_SECURE_BACKDOOR_DISABLED 0x04U +/*@}*/ + +/*! + * @name Flash controller command numbers + * @{ + */ +#define FTFx_VERIFY_BLOCK 0x00U /*!< RD1BLK*/ +#define FTFx_VERIFY_SECTION 0x01U /*!< RD1SEC*/ +#define FTFx_PROGRAM_CHECK 0x02U /*!< PGMCHK*/ +#define FTFx_READ_RESOURCE 0x03U /*!< RDRSRC*/ +#define FTFx_PROGRAM_LONGWORD 0x06U /*!< PGM4*/ +#define FTFx_PROGRAM_PHRASE 0x07U /*!< PGM8*/ +#define FTFx_ERASE_BLOCK 0x08U /*!< ERSBLK*/ +#define FTFx_ERASE_SECTOR 0x09U /*!< ERSSCR*/ +#define FTFx_PROGRAM_SECTION 0x0BU /*!< PGMSEC*/ +#define FTFx_VERIFY_ALL_BLOCK 0x40U /*!< RD1ALL*/ +#define FTFx_READ_ONCE 0x41U /*!< RDONCE or RDINDEX*/ +#define FTFx_PROGRAM_ONCE 0x43U /*!< PGMONCE or PGMINDEX*/ +#define FTFx_ERASE_ALL_BLOCK 0x44U /*!< ERSALL*/ +#define FTFx_SECURITY_BY_PASS 0x45U /*!< VFYKEY*/ +#define FTFx_SWAP_CONTROL 0x46U /*!< SWAP*/ +#define FTFx_ERASE_ALL_BLOCK_UNSECURE 0x49U /*!< ERSALLU*/ +#define FTFx_VERIFY_ALL_EXECUTE_ONLY_SEGMENT 0x4AU /*!< RD1XA*/ +#define FTFx_ERASE_ALL_EXECUTE_ONLY_SEGMENT 0x4BU /*!< ERSXA*/ +#define FTFx_PROGRAM_PARTITION 0x80U /*!< PGMPART)*/ +#define FTFx_SET_FLEXRAM_FUNCTION 0x81U /*!< SETRAM*/ + /*@}*/ + +/*! + * @name Common flash register info defines + * @{ + */ +#if defined(FTFA) +#define FTFx FTFA +#define FTFx_BASE FTFA_BASE +#define FTFx_FSTAT_CCIF_MASK FTFA_FSTAT_CCIF_MASK +#define FTFx_FSTAT_RDCOLERR_MASK FTFA_FSTAT_RDCOLERR_MASK +#define FTFx_FSTAT_ACCERR_MASK FTFA_FSTAT_ACCERR_MASK +#define FTFx_FSTAT_FPVIOL_MASK FTFA_FSTAT_FPVIOL_MASK +#define FTFx_FSTAT_MGSTAT0_MASK FTFA_FSTAT_MGSTAT0_MASK +#define FTFx_FSEC_SEC_MASK FTFA_FSEC_SEC_MASK +#define FTFx_FSEC_KEYEN_MASK FTFA_FSEC_KEYEN_MASK +#if defined(FSL_FEATURE_FLASH_HAS_FLEX_RAM) && FSL_FEATURE_FLASH_HAS_FLEX_RAM +#define FTFx_FCNFG_RAMRDY_MASK FTFA_FCNFG_RAMRDY_MASK +#endif /* FSL_FEATURE_FLASH_HAS_FLEX_RAM */ +#if defined(FSL_FEATURE_FLASH_HAS_FLEX_NVM) && FSL_FEATURE_FLASH_HAS_FLEX_NVM +#define FTFx_FCNFG_EEERDY_MASK FTFA_FCNFG_EEERDY_MASK +#endif /* FSL_FEATURE_FLASH_HAS_FLEX_NVM */ +#elif defined(FTFE) +#define FTFx FTFE +#define FTFx_BASE FTFE_BASE +#define FTFx_FSTAT_CCIF_MASK FTFE_FSTAT_CCIF_MASK +#define FTFx_FSTAT_RDCOLERR_MASK FTFE_FSTAT_RDCOLERR_MASK +#define FTFx_FSTAT_ACCERR_MASK FTFE_FSTAT_ACCERR_MASK +#define FTFx_FSTAT_FPVIOL_MASK FTFE_FSTAT_FPVIOL_MASK +#define FTFx_FSTAT_MGSTAT0_MASK FTFE_FSTAT_MGSTAT0_MASK +#define FTFx_FSEC_SEC_MASK FTFE_FSEC_SEC_MASK +#define FTFx_FSEC_KEYEN_MASK FTFE_FSEC_KEYEN_MASK +#if defined(FSL_FEATURE_FLASH_HAS_FLEX_RAM) && FSL_FEATURE_FLASH_HAS_FLEX_RAM +#define FTFx_FCNFG_RAMRDY_MASK FTFE_FCNFG_RAMRDY_MASK +#endif /* FSL_FEATURE_FLASH_HAS_FLEX_RAM */ +#if defined(FSL_FEATURE_FLASH_HAS_FLEX_NVM) && FSL_FEATURE_FLASH_HAS_FLEX_NVM +#define FTFx_FCNFG_EEERDY_MASK FTFE_FCNFG_EEERDY_MASK +#endif /* FSL_FEATURE_FLASH_HAS_FLEX_NVM */ +#elif defined(FTFL) +#define FTFx FTFL +#define FTFx_BASE FTFL_BASE +#define FTFx_FSTAT_CCIF_MASK FTFL_FSTAT_CCIF_MASK +#define FTFx_FSTAT_RDCOLERR_MASK FTFL_FSTAT_RDCOLERR_MASK +#define FTFx_FSTAT_ACCERR_MASK FTFL_FSTAT_ACCERR_MASK +#define FTFx_FSTAT_FPVIOL_MASK FTFL_FSTAT_FPVIOL_MASK +#define FTFx_FSTAT_MGSTAT0_MASK FTFL_FSTAT_MGSTAT0_MASK +#define FTFx_FSEC_SEC_MASK FTFL_FSEC_SEC_MASK +#define FTFx_FSEC_KEYEN_MASK FTFL_FSEC_KEYEN_MASK +#if defined(FSL_FEATURE_FLASH_HAS_FLEX_RAM) && FSL_FEATURE_FLASH_HAS_FLEX_RAM +#define FTFx_FCNFG_RAMRDY_MASK FTFL_FCNFG_RAMRDY_MASK +#endif /* FSL_FEATURE_FLASH_HAS_FLEX_RAM */ +#if defined(FSL_FEATURE_FLASH_HAS_FLEX_NVM) && FSL_FEATURE_FLASH_HAS_FLEX_NVM +#define FTFx_FCNFG_EEERDY_MASK FTFL_FCNFG_EEERDY_MASK +#endif /* FSL_FEATURE_FLASH_HAS_FLEX_NVM */ +#else +#error "Unknown flash controller" +#endif +/*@}*/ + +/*! + * @brief Enumeration for access segment property. + */ +enum _flash_access_segment_property +{ + kFLASH_AccessSegmentBase = 256UL, +}; + +/*! + * @brief Enumeration for flash config area. + */ +enum _flash_config_area_range +{ + kFLASH_ConfigAreaStart = 0x400U, + kFLASH_ConfigAreaEnd = 0x40FU +}; + +/*! @brief Total flash region count*/ +#define FSL_FEATURE_FTFx_REGION_COUNT (32U) + +/*! + * @name Flash register access type defines + * @{ + */ +#if FLASH_DRIVER_IS_FLASH_RESIDENT +#define FTFx_REG_ACCESS_TYPE volatile uint8_t * +#define FTFx_REG32_ACCESS_TYPE volatile uint32_t * +#endif /* FLASH_DRIVER_IS_FLASH_RESIDENT */ + /*@}*/ + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +#if FLASH_DRIVER_IS_FLASH_RESIDENT +/*! @brief Copy flash_run_command() to RAM*/ +static void copy_flash_run_command(uint32_t *flashRunCommand); +/*! @brief Copy flash_cache_clear_command() to RAM*/ +static void copy_flash_cache_clear_command(uint32_t *flashCacheClearCommand); +/*! @brief Check whether flash execute-in-ram functions are ready*/ +static status_t flash_check_execute_in_ram_function_info(flash_config_t *config); +#endif /* FLASH_DRIVER_IS_FLASH_RESIDENT */ + +/*! @brief Internal function Flash command sequence. Called by driver APIs only*/ +static status_t flash_command_sequence(flash_config_t *config); + +/*! @brief Perform the cache clear to the flash*/ +void flash_cache_clear(flash_config_t *config); + +/*! @brief Validates the range and alignment of the given address range.*/ +static status_t flash_check_range(flash_config_t *config, + uint32_t startAddress, + uint32_t lengthInBytes, + uint32_t alignmentBaseline); +/*! @brief Gets the right address, sector and block size of current flash type which is indicated by address.*/ +static status_t flash_get_matched_operation_info(flash_config_t *config, + uint32_t address, + flash_operation_config_t *info); +/*! @brief Validates the given user key for flash erase APIs.*/ +static status_t flash_check_user_key(uint32_t key); + +#if FLASH_SSD_IS_FLEXNVM_ENABLED +/*! @brief Updates FlexNVM memory partition status according to data flash 0 IFR.*/ +static status_t flash_update_flexnvm_memory_partition_status(flash_config_t *config); +#endif /* FLASH_SSD_IS_FLEXNVM_ENABLED */ + +#if defined(FSL_FEATURE_FLASH_HAS_READ_RESOURCE_CMD) && FSL_FEATURE_FLASH_HAS_READ_RESOURCE_CMD +/*! @brief Validates the range of the given resource address.*/ +static status_t flash_check_resource_range(uint32_t start, + uint32_t lengthInBytes, + uint32_t alignmentBaseline, + flash_read_resource_option_t option); +#endif /* FSL_FEATURE_FLASH_HAS_READ_RESOURCE_CMD */ + +#if defined(FSL_FEATURE_FLASH_HAS_SWAP_CONTROL_CMD) && FSL_FEATURE_FLASH_HAS_SWAP_CONTROL_CMD +/*! @brief Validates the gived swap control option.*/ +static status_t flash_check_swap_control_option(flash_swap_control_option_t option); +#endif /* FSL_FEATURE_FLASH_HAS_SWAP_CONTROL_CMD */ + +#if defined(FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP) && FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP +/*! @brief Validates the gived address to see if it is equal to swap indicator address in pflash swap IFR.*/ +static status_t flash_validate_swap_indicator_address(flash_config_t *config, uint32_t address); +#endif /* FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP */ + +#if defined(FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD) && FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD +/*! @brief Validates the gived flexram function option.*/ +static inline status_t flasn_check_flexram_function_option_range(flash_flexram_function_option_t option); +#endif /* FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD */ + +/******************************************************************************* + * Variables + ******************************************************************************/ + +/*! @brief Access to FTFx->FCCOB */ +#if defined(FSL_FEATURE_FLASH_IS_FTFA) && FSL_FEATURE_FLASH_IS_FTFA +volatile uint32_t *const kFCCOBx = (volatile uint32_t *)&FTFA->FCCOB3; +#elif defined(FSL_FEATURE_FLASH_IS_FTFE) && FSL_FEATURE_FLASH_IS_FTFE +volatile uint32_t *const kFCCOBx = (volatile uint32_t *)&FTFE->FCCOB3; +#elif defined(FSL_FEATURE_FLASH_IS_FTFL) && FSL_FEATURE_FLASH_IS_FTFL +volatile uint32_t *const kFCCOBx = (volatile uint32_t *)&FTFL->FCCOB3; +#else +#error "Unknown flash controller" +#endif + +/*! @brief Access to FTFx->FPROT */ +#if defined(FSL_FEATURE_FLASH_IS_FTFA) && FSL_FEATURE_FLASH_IS_FTFA +volatile uint32_t *const kFPROT = (volatile uint32_t *)&FTFA->FPROT3; +#elif defined(FSL_FEATURE_FLASH_IS_FTFE) && FSL_FEATURE_FLASH_IS_FTFE +volatile uint32_t *const kFPROT = (volatile uint32_t *)&FTFE->FPROT3; +#elif defined(FSL_FEATURE_FLASH_IS_FTFL) && FSL_FEATURE_FLASH_IS_FTFL +volatile uint32_t *const kFPROT = (volatile uint32_t *)&FTFL->FPROT3; +#else +#error "Unknown flash controller" +#endif + +#if FLASH_DRIVER_IS_FLASH_RESIDENT +/*! @brief A function pointer used to point to relocated flash_run_command() */ +static void (*callFlashRunCommand)(FTFx_REG_ACCESS_TYPE ftfx_fstat); +/*! @brief A function pointer used to point to relocated flash_cache_clear_command() */ +static void (*callFlashCacheClearCommand)(FTFx_REG32_ACCESS_TYPE ftfx_reg); + +/*! + * @brief Position independent code of flash_run_command() + * + * Note1: The prototype of C function is shown as below: + * @code + * void flash_run_command(FTFx_REG_ACCESS_TYPE ftfx_fstat) + * { + * // clear CCIF bit + * *ftfx_fstat = FTFx_FSTAT_CCIF_MASK; + * + * // Check CCIF bit of the flash status register, wait till it is set. + * // IP team indicates that this loop will always complete. + * while (!((*ftfx_fstat) & FTFx_FSTAT_CCIF_MASK)) + * { + * } + * } + * @endcode + * Note2: The binary code is generated by IAR 7.50.1 + */ +const static uint16_t s_flashRunCommandFunctionCode[] = { + 0x2180, /* MOVS R1, #128 ; 0x80 */ + 0x7001, /* STRB R1, [R0] */ + /* @4: */ + 0x7802, /* LDRB R2, [R0] */ + 0x420a, /* TST R2, R1 */ + 0xd0fc, /* BEQ.N @4 */ + 0x4770 /* BX LR */ +}; + +/*! + * @brief Position independent code of flash_cache_clear_command() + * + * Note1: The prototype of C function is shown as below: + * @code + * void flash_cache_clear_command(FTFx_REG32_ACCESS_TYPE ftfx_reg) + * { + * #if defined(FSL_FEATURE_FLASH_HAS_MCM_FLASH_CACHE_CONTROLS) && FSL_FEATURE_FLASH_HAS_MCM_FLASH_CACHE_CONTROLS + * *ftfx_reg |= MCM_PLACR_CFCC_MASK; + * #elif defined(FSL_FEATURE_FLASH_HAS_FMC_FLASH_CACHE_CONTROLS) && FSL_FEATURE_FLASH_HAS_FMC_FLASH_CACHE_CONTROLS + * #if defined(FMC_PFB01CR_CINV_WAY_MASK) + * *ftfx_reg = (*ftfx_reg & ~FMC_PFB01CR_CINV_WAY_MASK) | FMC_PFB01CR_CINV_WAY(~0); + * #else + * *ftfx_reg = (*ftfx_reg & ~FMC_PFB0CR_CINV_WAY_MASK) | FMC_PFB0CR_CINV_WAY(~0); + * #endif + * #elif defined(FSL_FEATURE_FLASH_HAS_MSCM_FLASH_CACHE_CONTROLS) && FSL_FEATURE_FLASH_HAS_MSCM_FLASH_CACHE_CONTROLS + * *ftfx_reg |= MSCM_OCMDR_OCMC1(2); + * *ftfx_reg |= MSCM_OCMDR_OCMC1(1); + * #else + * #if defined(FMC_PFB0CR_S_INV_MASK) + * *ftfx_reg |= FMC_PFB0CR_S_INV_MASK; + * #elif defined(FMC_PFB01CR_S_INV_MASK) + * *ftfx_reg |= FMC_PFB01CR_S_INV_MASK; + * #endif + * // #error "Unknown flash cache controller" + * #endif // FSL_FEATURE_FTFx_MCM_FLASH_CACHE_CONTROLS + * // Memory barriers for good measure. + * // All Cache, Branch predictor and TLB maintenance operations before this instruction complete + * __ISB(); + * __DSB(); + * } + * @endcode + * Note2: The binary code is generated by IAR 7.50.1 + */ +#if defined(FSL_FEATURE_FLASH_HAS_MCM_FLASH_CACHE_CONTROLS) && FSL_FEATURE_FLASH_HAS_MCM_FLASH_CACHE_CONTROLS +const static uint16_t s_flashCacheClearCommandFunctionCode[] = { + 0x6801, /* LDR R1, [R0] */ + 0x2280, /* MOVS R2, #128 ; 0x80 */ + 0x00d2, /* LSLS R2, R2, #3 */ + 0x430a, /* ORRS R2, R2, R1 */ + 0x6002, /* STR R2, [R0] */ + 0xf3bf, 0x8f6f, /* ISB */ + 0xf3bf, 0x8f4f, /* DSB */ + 0x4770 /* BX LR */ +}; +#elif defined(FSL_FEATURE_FLASH_HAS_FMC_FLASH_CACHE_CONTROLS) && FSL_FEATURE_FLASH_HAS_FMC_FLASH_CACHE_CONTROLS +const static uint16_t s_flashCacheClearCommandFunctionCode[] = { + 0x6801, /* LDR R1, [R0] */ + 0x22f0, /* MOVS R2, #240 ; 0xf0 */ + 0x0412, /* LSLS R2, R2, #16 */ + 0x430a, /* ORRS R2, R2, R1 */ + 0x6002, /* STR R2, [R0] */ + 0xf3bf, 0x8f6f, /* ISB */ + 0xf3bf, 0x8f4f, /* DSB */ + 0x4770 /* BX LR */ +}; +#elif defined(FSL_FEATURE_FLASH_HAS_MSCM_FLASH_CACHE_CONTROLS) && FSL_FEATURE_FLASH_HAS_MSCM_FLASH_CACHE_CONTROLS +const static uint16_t s_flashCacheClearCommandFunctionCode[] = { + 0x6801, /* LDR R1, [R0] */ + 0x2220, /* MOVS R2, #32 ; 0x20 */ + 0x430a, /* ORRS R2, R2, R1 */ + 0x6002, /* STR R2, [R0] */ + 0x6801, /* LDR R1, [R0] */ + 0x2210, /* MOVS R2, #16 ; 0x10 */ + 0x430a, /* ORRS R2, R2, R1 */ + 0x6002, /* STR R2, [R0] */ + 0xf3bf, 0x8f6f, /* ISB */ + 0xf3bf, 0x8f4f, /* DSB */ + 0x4770 /* BX LR */ +}; +#else +#if defined(FMC_PFB0CR_S_INV_MASK) || defined(FMC_PFB01CR_S_INV_MASK) +const static uint16_t s_flashCacheClearCommandFunctionCode[] = { + 0x6801, /* LDR R1, [R0] */ + 0x2280, /* MOVS R2, #128 ; 0x80 */ + 0x0312, /* LSLS R2, R2, #12 */ + 0x430a, /* ORRS R2, R2, R1 */ + 0x6002, /* STR R2, [R0] */ + 0xf3bf, 0x8f6f, /* ISB */ + 0xf3bf, 0x8f4f, /* DSB */ + 0x4770 /* BX LR */ +}; +#else +const static uint16_t s_flashCacheClearCommandFunctionCode[] = { + 0xf3bf, 0x8f6f, /* ISB */ + 0xf3bf, 0x8f4f, /* DSB */ + 0x4770 /* BX LR */ +}; +#endif +#endif +#endif /* FLASH_DRIVER_IS_FLASH_RESIDENT */ + +#if (FLASH_DRIVER_IS_FLASH_RESIDENT && !FLASH_DRIVER_IS_EXPORTED) +/*! @brief A static buffer used to hold flash_run_command() */ +static uint32_t s_flashRunCommand[kFLASH_ExecuteInRamFunctionMaxSizeInWords]; +/*! @brief A static buffer used to hold flash_cache_clear_command() */ +static uint32_t s_flashCacheClearCommand[kFLASH_ExecuteInRamFunctionMaxSizeInWords]; +/*! @brief Flash execute-in-ram function information */ +static flash_execute_in_ram_function_config_t s_flashExecuteInRamFunctionInfo; +#endif + +/*! + * @brief Table of pflash sizes. + * + * The index into this table is the value of the SIM_FCFG1.PFSIZE bitfield. + * + * The values in this table have been right shifted 10 bits so that they will all fit within + * an 16-bit integer. To get the actual flash density, you must left shift the looked up value + * by 10 bits. + * + * Elements of this table have a value of 0 in cases where the PFSIZE bitfield value is + * reserved. + * + * Code to use the table: + * @code + * uint8_t pfsize = (SIM->FCFG1 & SIM_FCFG1_PFSIZE_MASK) >> SIM_FCFG1_PFSIZE_SHIFT; + * flashDensity = ((uint32_t)kPFlashDensities[pfsize]) << 10; + * @endcode + */ +const uint16_t kPFlashDensities[] = { + 8, /* 0x0 - 8192, 8KB */ + 16, /* 0x1 - 16384, 16KB */ + 24, /* 0x2 - 24576, 24KB */ + 32, /* 0x3 - 32768, 32KB */ + 48, /* 0x4 - 49152, 48KB */ + 64, /* 0x5 - 65536, 64KB */ + 96, /* 0x6 - 98304, 96KB */ + 128, /* 0x7 - 131072, 128KB */ + 192, /* 0x8 - 196608, 192KB */ + 256, /* 0x9 - 262144, 256KB */ + 384, /* 0xa - 393216, 384KB */ + 512, /* 0xb - 524288, 512KB */ + 768, /* 0xc - 786432, 768KB */ + 1024, /* 0xd - 1048576, 1MB */ + 1536, /* 0xe - 1572864, 1.5MB */ + /* 2048, 0xf - 2097152, 2MB */ +}; + +/******************************************************************************* + * Code + ******************************************************************************/ + +status_t FLASH_Init(flash_config_t *config) +{ + uint32_t flashDensity; + + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + /* calculate the flash density from SIM_FCFG1.PFSIZE */ + uint8_t pfsize = (SIM->FCFG1 & SIM_FCFG1_PFSIZE_MASK) >> SIM_FCFG1_PFSIZE_SHIFT; + /* PFSIZE=0xf means that on customer parts the IFR was not correctly programmed. + * We just use the pre-defined flash size in feature file here to support pre-production parts */ + if (pfsize == 0xf) + { + flashDensity = FSL_FEATURE_FLASH_PFLASH_BLOCK_COUNT * FSL_FEATURE_FLASH_PFLASH_BLOCK_SIZE; + } + else + { + flashDensity = ((uint32_t)kPFlashDensities[pfsize]) << 10; + } + + /* fill out a few of the structure members */ + config->PFlashBlockBase = FSL_FEATURE_FLASH_PFLASH_START_ADDRESS; + config->PFlashTotalSize = flashDensity; + config->PFlashBlockCount = FSL_FEATURE_FLASH_PFLASH_BLOCK_COUNT; + config->PFlashSectorSize = FSL_FEATURE_FLASH_PFLASH_BLOCK_SECTOR_SIZE; + +#if defined(FSL_FEATURE_FLASH_HAS_ACCESS_CONTROL) && FSL_FEATURE_FLASH_HAS_ACCESS_CONTROL + config->PFlashAccessSegmentSize = kFLASH_AccessSegmentBase << FTFx->FACSS; + config->PFlashAccessSegmentCount = FTFx->FACSN; +#else + config->PFlashAccessSegmentSize = 0; + config->PFlashAccessSegmentCount = 0; +#endif /* FSL_FEATURE_FLASH_HAS_ACCESS_CONTROL */ + + config->PFlashCallback = NULL; + +/* copy required flash commands to RAM */ +#if (FLASH_DRIVER_IS_FLASH_RESIDENT && !FLASH_DRIVER_IS_EXPORTED) + if (kStatus_FLASH_Success != flash_check_execute_in_ram_function_info(config)) + { + s_flashExecuteInRamFunctionInfo.activeFunctionCount = 0; + s_flashExecuteInRamFunctionInfo.flashRunCommand = s_flashRunCommand; + s_flashExecuteInRamFunctionInfo.flashCacheClearCommand = s_flashCacheClearCommand; + config->flashExecuteInRamFunctionInfo = &s_flashExecuteInRamFunctionInfo.activeFunctionCount; + FLASH_PrepareExecuteInRamFunctions(config); + } +#endif + + config->FlexRAMBlockBase = FSL_FEATURE_FLASH_FLEX_RAM_START_ADDRESS; + config->FlexRAMTotalSize = FSL_FEATURE_FLASH_FLEX_RAM_SIZE; + +#if FLASH_SSD_IS_FLEXNVM_ENABLED + { + status_t returnCode; + config->DFlashBlockBase = FSL_FEATURE_FLASH_FLEX_NVM_START_ADDRESS; + returnCode = flash_update_flexnvm_memory_partition_status(config); + if (returnCode != kStatus_FLASH_Success) + { + return returnCode; + } + } +#endif + + return kStatus_FLASH_Success; +} + +status_t FLASH_SetCallback(flash_config_t *config, flash_callback_t callback) +{ + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + config->PFlashCallback = callback; + + return kStatus_FLASH_Success; +} + +#if FLASH_DRIVER_IS_FLASH_RESIDENT +status_t FLASH_PrepareExecuteInRamFunctions(flash_config_t *config) +{ + flash_execute_in_ram_function_config_t *flashExecuteInRamFunctionInfo; + + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + flashExecuteInRamFunctionInfo = (flash_execute_in_ram_function_config_t *)config->flashExecuteInRamFunctionInfo; + + copy_flash_run_command(flashExecuteInRamFunctionInfo->flashRunCommand); + copy_flash_cache_clear_command(flashExecuteInRamFunctionInfo->flashCacheClearCommand); + flashExecuteInRamFunctionInfo->activeFunctionCount = kFLASH_ExecuteInRamFunctionTotalNum; + + return kStatus_FLASH_Success; +} +#endif /* FLASH_DRIVER_IS_FLASH_RESIDENT */ + +status_t FLASH_EraseAll(flash_config_t *config, uint32_t key) +{ + status_t returnCode; + + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + /* preparing passing parameter to erase all flash blocks */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_3(FTFx_ERASE_ALL_BLOCK, 0xFFFFFFU); + + /* Validate the user key */ + returnCode = flash_check_user_key(key); + if (returnCode) + { + return returnCode; + } + + /* calling flash command sequence function to execute the command */ + returnCode = flash_command_sequence(config); + + flash_cache_clear(config); + +#if FLASH_SSD_IS_FLEXNVM_ENABLED + /* Data flash IFR will be erased by erase all command, so we need to + * update FlexNVM memory partition status synchronously */ + if (returnCode == kStatus_FLASH_Success) + { + returnCode = flash_update_flexnvm_memory_partition_status(config); + } +#endif + + return returnCode; +} + +status_t FLASH_Erase(flash_config_t *config, uint32_t start, uint32_t lengthInBytes, uint32_t key) +{ + uint32_t sectorSize; + flash_operation_config_t flashInfo; + uint32_t endAddress; /* storing end address */ + uint32_t numberOfSectors; /* number of sectors calculated by endAddress */ + status_t returnCode; + + flash_get_matched_operation_info(config, start, &flashInfo); + + /* Check the supplied address range. */ + returnCode = flash_check_range(config, start, lengthInBytes, flashInfo.sectorCmdAddressAligment); + if (returnCode) + { + return returnCode; + } + + start = flashInfo.convertedAddress; + sectorSize = flashInfo.activeSectorSize; + + /* calculating Flash end address */ + endAddress = start + lengthInBytes - 1; + + /* re-calculate the endAddress and align it to the start of the next sector + * which will be used in the comparison below */ + if (endAddress % sectorSize) + { + numberOfSectors = endAddress / sectorSize + 1; + endAddress = numberOfSectors * sectorSize - 1; + } + + /* the start address will increment to the next sector address + * until it reaches the endAdddress */ + while (start <= endAddress) + { + /* preparing passing parameter to erase a flash block */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_3(FTFx_ERASE_SECTOR, start); + + /* Validate the user key */ + returnCode = flash_check_user_key(key); + if (returnCode) + { + return returnCode; + } + + /* calling flash command sequence function to execute the command */ + returnCode = flash_command_sequence(config); + + /* calling flash callback function if it is available */ + if (config->PFlashCallback) + { + config->PFlashCallback(); + } + + /* checking the success of command execution */ + if (kStatus_FLASH_Success != returnCode) + { + break; + } + else + { + /* Increment to the next sector */ + start += sectorSize; + } + } + + flash_cache_clear(config); + + return (returnCode); +} + +#if defined(FSL_FEATURE_FLASH_HAS_ERASE_ALL_BLOCKS_UNSECURE_CMD) && FSL_FEATURE_FLASH_HAS_ERASE_ALL_BLOCKS_UNSECURE_CMD +status_t FLASH_EraseAllUnsecure(flash_config_t *config, uint32_t key) +{ + status_t returnCode; + + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + /* Prepare passing parameter to erase all flash blocks (unsecure). */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_3(FTFx_ERASE_ALL_BLOCK_UNSECURE, 0xFFFFFFU); + + /* Validate the user key */ + returnCode = flash_check_user_key(key); + if (returnCode) + { + return returnCode; + } + + /* calling flash command sequence function to execute the command */ + returnCode = flash_command_sequence(config); + + flash_cache_clear(config); + +#if FLASH_SSD_IS_FLEXNVM_ENABLED + /* Data flash IFR will be erased by erase all unsecure command, so we need to + * update FlexNVM memory partition status synchronously */ + if (returnCode == kStatus_FLASH_Success) + { + returnCode = flash_update_flexnvm_memory_partition_status(config); + } +#endif + + return returnCode; +} +#endif /* FSL_FEATURE_FLASH_HAS_ERASE_ALL_BLOCKS_UNSECURE_CMD */ + +status_t FLASH_EraseAllExecuteOnlySegments(flash_config_t *config, uint32_t key) +{ + status_t returnCode; + + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + /* preparing passing parameter to erase all execute-only segments + * 1st element for the FCCOB register */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_3(FTFx_ERASE_ALL_EXECUTE_ONLY_SEGMENT, 0xFFFFFFU); + + /* Validate the user key */ + returnCode = flash_check_user_key(key); + if (returnCode) + { + return returnCode; + } + + /* calling flash command sequence function to execute the command */ + returnCode = flash_command_sequence(config); + + flash_cache_clear(config); + + return returnCode; +} + +status_t FLASH_Program(flash_config_t *config, uint32_t start, uint32_t *src, uint32_t lengthInBytes) +{ + status_t returnCode; + flash_operation_config_t flashInfo; + + if (src == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + flash_get_matched_operation_info(config, start, &flashInfo); + + /* Check the supplied address range. */ + returnCode = flash_check_range(config, start, lengthInBytes, flashInfo.blockWriteUnitSize); + if (returnCode) + { + return returnCode; + } + + start = flashInfo.convertedAddress; + + while (lengthInBytes > 0) + { + /* preparing passing parameter to program the flash block */ + kFCCOBx[1] = *src++; + if (4 == flashInfo.blockWriteUnitSize) + { + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_3(FTFx_PROGRAM_LONGWORD, start); + } + else if (8 == flashInfo.blockWriteUnitSize) + { + kFCCOBx[2] = *src++; + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_3(FTFx_PROGRAM_PHRASE, start); + } + else + { + } + + /* calling flash command sequence function to execute the command */ + returnCode = flash_command_sequence(config); + + /* calling flash callback function if it is available */ + if (config->PFlashCallback) + { + config->PFlashCallback(); + } + + /* checking for the success of command execution */ + if (kStatus_FLASH_Success != returnCode) + { + break; + } + else + { + /* update start address for next iteration */ + start += flashInfo.blockWriteUnitSize; + + /* update lengthInBytes for next iteration */ + lengthInBytes -= flashInfo.blockWriteUnitSize; + } + } + + flash_cache_clear(config); + + return (returnCode); +} + +status_t FLASH_ProgramOnce(flash_config_t *config, uint32_t index, uint32_t *src, uint32_t lengthInBytes) +{ + status_t returnCode; + + if ((config == NULL) || (src == NULL)) + { + return kStatus_FLASH_InvalidArgument; + } + + /* pass paramters to FTFx */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_1_2(FTFx_PROGRAM_ONCE, index, 0xFFFFU); + + kFCCOBx[1] = *src; + +/* Note: Have to seperate the first index from the rest if it equals 0 + * to avoid a pointless comparison of unsigned int to 0 compiler warning */ +#if FLASH_PROGRAM_ONCE_IS_8BYTES_UNIT_SUPPORT +#if FLASH_PROGRAM_ONCE_IS_4BYTES_UNIT_SUPPORT + if (((index == FLASH_PROGRAM_ONCE_MIN_ID_8BYTES) || + /* Range check */ + ((index >= FLASH_PROGRAM_ONCE_MIN_ID_8BYTES + 1) && (index <= FLASH_PROGRAM_ONCE_MAX_ID_8BYTES))) && + (lengthInBytes == 8)) +#endif /* FLASH_PROGRAM_ONCE_IS_4BYTES_UNIT_SUPPORT */ + { + kFCCOBx[2] = *(src + 1); + } +#endif /* FLASH_PROGRAM_ONCE_IS_8BYTES_UNIT_SUPPORT */ + + /* calling flash command sequence function to execute the command */ + returnCode = flash_command_sequence(config); + + flash_cache_clear(config); + + return returnCode; +} + +#if defined(FSL_FEATURE_FLASH_HAS_PROGRAM_SECTION_CMD) && FSL_FEATURE_FLASH_HAS_PROGRAM_SECTION_CMD +status_t FLASH_ProgramSection(flash_config_t *config, uint32_t start, uint32_t *src, uint32_t lengthInBytes) +{ + status_t returnCode; + uint32_t sectorSize; + flash_operation_config_t flashInfo; +#if defined(FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD) && FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD + bool needSwitchFlexRamMode = false; +#endif /* FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD */ + + if (src == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + flash_get_matched_operation_info(config, start, &flashInfo); + + /* Check the supplied address range. */ + returnCode = flash_check_range(config, start, lengthInBytes, flashInfo.sectionCmdAddressAligment); + if (returnCode) + { + return returnCode; + } + + start = flashInfo.convertedAddress; + sectorSize = flashInfo.activeSectorSize; + +#if defined(FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD) && FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD + /* Switch function of FlexRAM if needed */ + if (!(FTFx->FCNFG & FTFx_FCNFG_RAMRDY_MASK)) + { + needSwitchFlexRamMode = true; + + returnCode = FLASH_SetFlexramFunction(config, kFLASH_FlexramFunctionOptionAvailableAsRam); + if (returnCode != kStatus_FLASH_Success) + { + return kStatus_FLASH_SetFlexramAsRamError; + } + } +#endif /* FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD */ + + while (lengthInBytes > 0) + { + /* Make sure the write operation doesn't span two sectors */ + uint32_t endAddressOfCurrentSector = ALIGN_UP(start, sectorSize); + uint32_t lengthTobeProgrammedOfCurrentSector; + uint32_t currentOffset = 0; + + if (endAddressOfCurrentSector == start) + { + endAddressOfCurrentSector += sectorSize; + } + + if (lengthInBytes + start > endAddressOfCurrentSector) + { + lengthTobeProgrammedOfCurrentSector = endAddressOfCurrentSector - start; + } + else + { + lengthTobeProgrammedOfCurrentSector = lengthInBytes; + } + + /* Program Current Sector */ + while (lengthTobeProgrammedOfCurrentSector > 0) + { + /* Make sure the program size doesn't exceeds Acceleration RAM size */ + uint32_t programSizeOfCurrentPass; + uint32_t numberOfPhases; + + if (lengthTobeProgrammedOfCurrentSector > kFLASH_AccelerationRamSize) + { + programSizeOfCurrentPass = kFLASH_AccelerationRamSize; + } + else + { + programSizeOfCurrentPass = lengthTobeProgrammedOfCurrentSector; + } + + /* Copy data to FlexRAM */ + memcpy((void *)FSL_FEATURE_FLASH_FLEX_RAM_START_ADDRESS, src + currentOffset / 4, programSizeOfCurrentPass); + /* Set start address of the data to be programmed */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_3(FTFx_PROGRAM_SECTION, start + currentOffset); + /* Set program size in terms of FEATURE_FLASH_SECTION_CMD_ADDRESS_ALIGMENT */ + numberOfPhases = programSizeOfCurrentPass / flashInfo.sectionCmdAddressAligment; + + kFCCOBx[1] = BYTES_JOIN_TO_WORD_2_2(numberOfPhases, 0xFFFFU); + + /* Peform command sequence */ + returnCode = flash_command_sequence(config); + + /* calling flash callback function if it is available */ + if (config->PFlashCallback) + { + config->PFlashCallback(); + } + + if (returnCode != kStatus_FLASH_Success) + { + flash_cache_clear(config); + return returnCode; + } + + lengthTobeProgrammedOfCurrentSector -= programSizeOfCurrentPass; + currentOffset += programSizeOfCurrentPass; + } + + src += currentOffset / 4; + start += currentOffset; + lengthInBytes -= currentOffset; + } + + flash_cache_clear(config); + +#if defined(FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD) && FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD + /* Restore function of FlexRAM if needed. */ + if (needSwitchFlexRamMode) + { + returnCode = FLASH_SetFlexramFunction(config, kFLASH_FlexramFunctionOptionAvailableForEeprom); + if (returnCode != kStatus_FLASH_Success) + { + return kStatus_FLASH_RecoverFlexramAsEepromError; + } + } +#endif /* FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD */ + + return returnCode; +} +#endif /* FSL_FEATURE_FLASH_HAS_PROGRAM_SECTION_CMD */ + +#if FLASH_SSD_IS_FLEXNVM_ENABLED +status_t FLASH_EepromWrite(flash_config_t *config, uint32_t start, uint8_t *src, uint32_t lengthInBytes) +{ + status_t returnCode; + bool needSwitchFlexRamMode = false; + + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + /* Validates the range of the given address */ + if ((start < config->FlexRAMBlockBase) || + ((start + lengthInBytes) > (config->FlexRAMBlockBase + config->EEpromTotalSize))) + { + return kStatus_FLASH_AddressError; + } + + returnCode = kStatus_FLASH_Success; + + /* Switch function of FlexRAM if needed */ + if (!(FTFx->FCNFG & FTFx_FCNFG_EEERDY_MASK)) + { + needSwitchFlexRamMode = true; + + returnCode = FLASH_SetFlexramFunction(config, kFLASH_FlexramFunctionOptionAvailableForEeprom); + if (returnCode != kStatus_FLASH_Success) + { + return kStatus_FLASH_SetFlexramAsEepromError; + } + } + + /* Write data to FlexRAM when it is used as EEPROM emulator */ + while (lengthInBytes > 0) + { + if ((!(start & 0x3U)) && (lengthInBytes >= 4)) + { + *(uint32_t *)start = *(uint32_t *)src; + start += 4; + src += 4; + lengthInBytes -= 4; + } + else if ((!(start & 0x1U)) && (lengthInBytes >= 2)) + { + *(uint16_t *)start = *(uint16_t *)src; + start += 2; + src += 2; + lengthInBytes -= 2; + } + else + { + *(uint8_t *)start = *src; + start += 1; + src += 1; + lengthInBytes -= 1; + } + /* Wait till EEERDY bit is set */ + while (!(FTFx->FCNFG & FTFx_FCNFG_EEERDY_MASK)) + { + } + + /* Check for protection violation error */ + if (FTFx->FSTAT & FTFx_FSTAT_FPVIOL_MASK) + { + return kStatus_FLASH_ProtectionViolation; + } + } + + /* Switch function of FlexRAM if needed */ + if (needSwitchFlexRamMode) + { + returnCode = FLASH_SetFlexramFunction(config, kFLASH_FlexramFunctionOptionAvailableAsRam); + if (returnCode != kStatus_FLASH_Success) + { + return kStatus_FLASH_RecoverFlexramAsRamError; + } + } + + return returnCode; +} +#endif /* FLASH_SSD_IS_FLEXNVM_ENABLED */ + +#if defined(FSL_FEATURE_FLASH_HAS_READ_RESOURCE_CMD) && FSL_FEATURE_FLASH_HAS_READ_RESOURCE_CMD +status_t FLASH_ReadResource( + flash_config_t *config, uint32_t start, uint32_t *dst, uint32_t lengthInBytes, flash_read_resource_option_t option) +{ + status_t returnCode; + flash_operation_config_t flashInfo; + + if ((config == NULL) || (dst == NULL)) + { + return kStatus_FLASH_InvalidArgument; + } + + flash_get_matched_operation_info(config, start, &flashInfo); + + /* Check the supplied address range. */ + returnCode = flash_check_resource_range(start, lengthInBytes, flashInfo.resourceCmdAddressAligment, option); + if (returnCode != kStatus_FLASH_Success) + { + return returnCode; + } + + while (lengthInBytes > 0) + { + /* preparing passing parameter */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_3(FTFx_READ_RESOURCE, start); + if (flashInfo.resourceCmdAddressAligment == 4) + { + kFCCOBx[2] = BYTES_JOIN_TO_WORD_1_3(option, 0xFFFFFFU); + } + else if (flashInfo.resourceCmdAddressAligment == 8) + { + kFCCOBx[1] = BYTES_JOIN_TO_WORD_1_3(option, 0xFFFFFFU); + } + else + { + } + + /* calling flash command sequence function to execute the command */ + returnCode = flash_command_sequence(config); + + if (kStatus_FLASH_Success != returnCode) + { + break; + } + + /* fetch data */ + *dst++ = kFCCOBx[1]; + if (flashInfo.resourceCmdAddressAligment == 8) + { + *dst++ = kFCCOBx[2]; + } + /* update start address for next iteration */ + start += flashInfo.resourceCmdAddressAligment; + /* update lengthInBytes for next iteration */ + lengthInBytes -= flashInfo.resourceCmdAddressAligment; + } + + return (returnCode); +} +#endif /* FSL_FEATURE_FLASH_HAS_READ_RESOURCE_CMD */ + +status_t FLASH_ReadOnce(flash_config_t *config, uint32_t index, uint32_t *dst, uint32_t lengthInBytes) +{ + status_t returnCode; + + if ((config == NULL) || (dst == NULL)) + { + return kStatus_FLASH_InvalidArgument; + } + + /* pass paramters to FTFx */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_1_2(FTFx_READ_ONCE, index, 0xFFFFU); + + /* calling flash command sequence function to execute the command */ + returnCode = flash_command_sequence(config); + + if (kStatus_FLASH_Success == returnCode) + { + *dst = kFCCOBx[1]; +/* Note: Have to seperate the first index from the rest if it equals 0 + * to avoid a pointless comparison of unsigned int to 0 compiler warning */ +#if FLASH_PROGRAM_ONCE_IS_8BYTES_UNIT_SUPPORT +#if FLASH_PROGRAM_ONCE_IS_4BYTES_UNIT_SUPPORT + if (((index == FLASH_PROGRAM_ONCE_MIN_ID_8BYTES) || + /* Range check */ + ((index >= FLASH_PROGRAM_ONCE_MIN_ID_8BYTES + 1) && (index <= FLASH_PROGRAM_ONCE_MAX_ID_8BYTES))) && + (lengthInBytes == 8)) +#endif /* FLASH_PROGRAM_ONCE_IS_4BYTES_UNIT_SUPPORT */ + { + *(dst + 1) = kFCCOBx[2]; + } +#endif /* FLASH_PROGRAM_ONCE_IS_8BYTES_UNIT_SUPPORT */ + } + + return returnCode; +} + +status_t FLASH_GetSecurityState(flash_config_t *config, flash_security_state_t *state) +{ + /* store data read from flash register */ + uint8_t registerValue; + + if ((config == NULL) || (state == NULL)) + { + return kStatus_FLASH_InvalidArgument; + } + + /* Get flash security register value */ + registerValue = FTFx->FSEC; + + /* check the status of the flash security bits in the security register */ + if (FLASH_SECURITY_STATE_UNSECURED == (registerValue & FTFx_FSEC_SEC_MASK)) + { + /* Flash in unsecured state */ + *state = kFLASH_SecurityStateNotSecure; + } + else + { + /* Flash in secured state + * check for backdoor key security enable bit */ + if (FLASH_SECURITY_STATE_KEYEN == (registerValue & FTFx_FSEC_KEYEN_MASK)) + { + /* Backdoor key security enabled */ + *state = kFLASH_SecurityStateBackdoorEnabled; + } + else + { + /* Backdoor key security disabled */ + *state = kFLASH_SecurityStateBackdoorDisabled; + } + } + + return (kStatus_FLASH_Success); +} + +status_t FLASH_SecurityBypass(flash_config_t *config, const uint8_t *backdoorKey) +{ + uint8_t registerValue; /* registerValue */ + status_t returnCode; /* return code variable */ + + if ((config == NULL) || (backdoorKey == NULL)) + { + return kStatus_FLASH_InvalidArgument; + } + + /* set the default return code as kStatus_Success */ + returnCode = kStatus_FLASH_Success; + + /* Get flash security register value */ + registerValue = FTFx->FSEC; + + /* Check to see if flash is in secure state (any state other than 0x2) + * If not, then skip this since flash is not secure */ + if (0x02 != (registerValue & 0x03)) + { + /* preparing passing parameter to erase a flash block */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_3(FTFx_SECURITY_BY_PASS, 0xFFFFFFU); + kFCCOBx[1] = BYTES_JOIN_TO_WORD_1_1_1_1(backdoorKey[0], backdoorKey[1], backdoorKey[2], backdoorKey[3]); + kFCCOBx[2] = BYTES_JOIN_TO_WORD_1_1_1_1(backdoorKey[4], backdoorKey[5], backdoorKey[6], backdoorKey[7]); + + /* calling flash command sequence function to execute the command */ + returnCode = flash_command_sequence(config); + } + + return (returnCode); +} + +status_t FLASH_VerifyEraseAll(flash_config_t *config, flash_margin_value_t margin) +{ + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + /* preparing passing parameter to verify all block command */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_1_2(FTFx_VERIFY_ALL_BLOCK, margin, 0xFFFFU); + + /* calling flash command sequence function to execute the command */ + return flash_command_sequence(config); +} + +status_t FLASH_VerifyErase(flash_config_t *config, uint32_t start, uint32_t lengthInBytes, flash_margin_value_t margin) +{ + /* Check arguments. */ + uint32_t blockSize; + flash_operation_config_t flashInfo; + uint32_t nextBlockStartAddress; + uint32_t remainingBytes; + status_t returnCode; + + flash_get_matched_operation_info(config, start, &flashInfo); + + returnCode = flash_check_range(config, start, lengthInBytes, flashInfo.sectionCmdAddressAligment); + if (returnCode) + { + return returnCode; + } + + flash_get_matched_operation_info(config, start, &flashInfo); + start = flashInfo.convertedAddress; + blockSize = flashInfo.activeBlockSize; + + nextBlockStartAddress = ALIGN_UP(start, blockSize); + if (nextBlockStartAddress == start) + { + nextBlockStartAddress += blockSize; + } + + remainingBytes = lengthInBytes; + + while (remainingBytes) + { + uint32_t numberOfPhrases; + uint32_t verifyLength = nextBlockStartAddress - start; + if (verifyLength > remainingBytes) + { + verifyLength = remainingBytes; + } + + numberOfPhrases = verifyLength / flashInfo.sectionCmdAddressAligment; + + /* Fill in verify section command parameters. */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_3(FTFx_VERIFY_SECTION, start); + kFCCOBx[1] = BYTES_JOIN_TO_WORD_2_1_1(numberOfPhrases, margin, 0xFFU); + + /* calling flash command sequence function to execute the command */ + returnCode = flash_command_sequence(config); + if (returnCode) + { + return returnCode; + } + + remainingBytes -= verifyLength; + start += verifyLength; + nextBlockStartAddress += blockSize; + } + + return kStatus_FLASH_Success; +} + +status_t FLASH_VerifyProgram(flash_config_t *config, + uint32_t start, + uint32_t lengthInBytes, + const uint32_t *expectedData, + flash_margin_value_t margin, + uint32_t *failedAddress, + uint32_t *failedData) +{ + status_t returnCode; + flash_operation_config_t flashInfo; + + if (expectedData == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + flash_get_matched_operation_info(config, start, &flashInfo); + + returnCode = flash_check_range(config, start, lengthInBytes, flashInfo.checkCmdAddressAligment); + if (returnCode) + { + return returnCode; + } + + start = flashInfo.convertedAddress; + + while (lengthInBytes) + { + /* preparing passing parameter to program check the flash block */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_3(FTFx_PROGRAM_CHECK, start); + kFCCOBx[1] = BYTES_JOIN_TO_WORD_1_3(margin, 0xFFFFFFU); + kFCCOBx[2] = *expectedData; + + /* calling flash command sequence function to execute the command */ + returnCode = flash_command_sequence(config); + + /* checking for the success of command execution */ + if (kStatus_FLASH_Success != returnCode) + { + if (failedAddress) + { + *failedAddress = start; + } + if (failedData) + { + *failedData = 0; + } + break; + } + + lengthInBytes -= flashInfo.checkCmdAddressAligment; + expectedData += flashInfo.checkCmdAddressAligment / sizeof(*expectedData); + start += flashInfo.checkCmdAddressAligment; + } + + return (returnCode); +} + +status_t FLASH_VerifyEraseAllExecuteOnlySegments(flash_config_t *config, flash_margin_value_t margin) +{ + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + /* preparing passing parameter to verify erase all execute-only segments command */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_1_2(FTFx_VERIFY_ALL_EXECUTE_ONLY_SEGMENT, margin, 0xFFFFU); + + /* calling flash command sequence function to execute the command */ + return flash_command_sequence(config); +} + +status_t FLASH_IsProtected(flash_config_t *config, + uint32_t start, + uint32_t lengthInBytes, + flash_protection_state_t *protection_state) +{ + uint32_t endAddress; /* end address for protection check */ + uint32_t protectionRegionSize; /* size of flash protection region */ + uint32_t regionCheckedCounter; /* increments each time the flash address was checked for + * protection status */ + uint32_t regionCounter; /* incrementing variable used to increment through the flash + * protection regions */ + uint32_t protectStatusCounter; /* increments each time a flash region was detected as protected */ + + uint8_t flashRegionProtectStatus[FSL_FEATURE_FTFx_REGION_COUNT]; /* array of the protection status for each + * protection region */ + uint32_t flashRegionAddress[FSL_FEATURE_FTFx_REGION_COUNT + 1]; /* array of the start addresses for each flash + * protection region. Note this is REGION_COUNT+1 + * due to requiring the next start address after + * the end of flash for loop-check purposes below */ + status_t returnCode; + + if (protection_state == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + /* Check the supplied address range. */ + returnCode = flash_check_range(config, start, lengthInBytes, FSL_FEATURE_FLASH_PFLASH_BLOCK_WRITE_UNIT_SIZE); + if (returnCode) + { + return returnCode; + } + + /* calculating Flash end address */ + endAddress = start + lengthInBytes; + + /* Calculate the size of the flash protection region + * If the flash density is > 32KB, then protection region is 1/32 of total flash density + * Else if flash density is < 32KB, then flash protection region is set to 1KB */ + if (config->PFlashTotalSize > 32 * 1024) + { + protectionRegionSize = (config->PFlashTotalSize) / FSL_FEATURE_FTFx_REGION_COUNT; + } + else + { + protectionRegionSize = 1024; + } + + /* populate the flashRegionAddress array with the start address of each flash region */ + regionCounter = 0; /* make sure regionCounter is initialized to 0 first */ + + /* populate up to 33rd element of array, this is the next address after end of flash array */ + while (regionCounter <= FSL_FEATURE_FTFx_REGION_COUNT) + { + flashRegionAddress[regionCounter] = config->PFlashBlockBase + protectionRegionSize * regionCounter; + regionCounter++; + } + + /* populate flashRegionProtectStatus array with status information + * Protection status for each region is stored in the FPROT[3:0] registers + * Each bit represents one region of flash + * 4 registers * 8-bits-per-register = 32-bits (32-regions) + * The convention is: + * FPROT3[bit 0] is the first protection region (start of flash memory) + * FPROT0[bit 7] is the last protection region (end of flash memory) + * regionCounter is used to determine which FPROT[3:0] register to check for protection status + * Note: FPROT=1 means NOT protected, FPROT=0 means protected */ + regionCounter = 0; /* make sure regionCounter is initialized to 0 first */ + while (regionCounter < FSL_FEATURE_FTFx_REGION_COUNT) + { + if (regionCounter < 8) + { + flashRegionProtectStatus[regionCounter] = ((FTFx->FPROT3) >> regionCounter) & (0x01u); + } + else if ((regionCounter >= 8) && (regionCounter < 16)) + { + flashRegionProtectStatus[regionCounter] = ((FTFx->FPROT2) >> (regionCounter - 8)) & (0x01u); + } + else if ((regionCounter >= 16) && (regionCounter < 24)) + { + flashRegionProtectStatus[regionCounter] = ((FTFx->FPROT1) >> (regionCounter - 16)) & (0x01u); + } + else + { + flashRegionProtectStatus[regionCounter] = ((FTFx->FPROT0) >> (regionCounter - 24)) & (0x01u); + } + regionCounter++; + } + + /* loop through the flash regions and check + * desired flash address range for protection status + * loop stops when it is detected that start has exceeded the endAddress */ + regionCounter = 0; /* make sure regionCounter is initialized to 0 first */ + regionCheckedCounter = 0; + protectStatusCounter = 0; /* make sure protectStatusCounter is initialized to 0 first */ + while (start < endAddress) + { + /* check to see if the address falls within this protection region + * Note that if the entire flash is to be checked, the last protection + * region checked would consist of the last protection start address and + * the start address following the end of flash */ + if ((start >= flashRegionAddress[regionCounter]) && (start < flashRegionAddress[regionCounter + 1])) + { + /* increment regionCheckedCounter to indicate this region was checked */ + regionCheckedCounter++; + + /* check the protection status of this region + * Note: FPROT=1 means NOT protected, FPROT=0 means protected */ + if (!flashRegionProtectStatus[regionCounter]) + { + /* increment protectStatusCounter to indicate this region is protected */ + protectStatusCounter++; + } + start += protectionRegionSize; /* increment to an address within the next region */ + } + regionCounter++; /* increment regionCounter to check for the next flash protection region */ + } + + /* if protectStatusCounter == 0, then no region of the desired flash region is protected */ + if (protectStatusCounter == 0) + { + *protection_state = kFLASH_ProtectionStateUnprotected; + } + /* if protectStatusCounter == regionCheckedCounter, then each region checked was protected */ + else if (protectStatusCounter == regionCheckedCounter) + { + *protection_state = kFLASH_ProtectionStateProtected; + } + /* if protectStatusCounter != regionCheckedCounter, then protection status is mixed + * In other words, some regions are protected while others are unprotected */ + else + { + *protection_state = kFLASH_ProtectionStateMixed; + } + + return (returnCode); +} + +status_t FLASH_IsExecuteOnly(flash_config_t *config, + uint32_t start, + uint32_t lengthInBytes, + flash_execute_only_access_state_t *access_state) +{ + status_t returnCode; + + if (access_state == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + /* Check the supplied address range. */ + returnCode = flash_check_range(config, start, lengthInBytes, FSL_FEATURE_FLASH_PFLASH_BLOCK_WRITE_UNIT_SIZE); + if (returnCode) + { + return returnCode; + } + +#if defined(FSL_FEATURE_FLASH_HAS_ACCESS_CONTROL) && FSL_FEATURE_FLASH_HAS_ACCESS_CONTROL + { + uint32_t executeOnlySegmentCounter = 0; + + /* calculating end address */ + uint32_t endAddress = start + lengthInBytes; + + /* Aligning start address and end address */ + uint32_t alignedStartAddress = ALIGN_DOWN(start, config->PFlashAccessSegmentSize); + uint32_t alignedEndAddress = ALIGN_UP(endAddress, config->PFlashAccessSegmentSize); + + uint32_t segmentIndex = 0; + uint32_t maxSupportedExecuteOnlySegmentCount = + (alignedEndAddress - alignedStartAddress) / config->PFlashAccessSegmentSize; + + while (start < endAddress) + { + uint32_t xacc; + + segmentIndex = start / config->PFlashAccessSegmentSize; + + if (segmentIndex < 32) + { + xacc = *(const volatile uint32_t *)&FTFx->XACCL3; + } + else if (segmentIndex < config->PFlashAccessSegmentCount) + { + xacc = *(const volatile uint32_t *)&FTFx->XACCH3; + segmentIndex -= 32; + } + else + { + break; + } + + /* Determine if this address range is in a execute-only protection flash segment. */ + if ((~xacc) & (1u << segmentIndex)) + { + executeOnlySegmentCounter++; + } + + start += config->PFlashAccessSegmentSize; + } + + if (executeOnlySegmentCounter < 1u) + { + *access_state = kFLASH_AccessStateUnLimited; + } + else if (executeOnlySegmentCounter < maxSupportedExecuteOnlySegmentCount) + { + *access_state = kFLASH_AccessStateMixed; + } + else + { + *access_state = kFLASH_AccessStateExecuteOnly; + } + } +#else + *access_state = kFLASH_AccessStateUnLimited; +#endif /* FSL_FEATURE_FLASH_HAS_ACCESS_CONTROL */ + + return (returnCode); +} + +status_t FLASH_GetProperty(flash_config_t *config, flash_property_tag_t whichProperty, uint32_t *value) +{ + if ((config == NULL) || (value == NULL)) + { + return kStatus_FLASH_InvalidArgument; + } + + switch (whichProperty) + { + case kFLASH_PropertyPflashSectorSize: + *value = config->PFlashSectorSize; + break; + + case kFLASH_PropertyPflashTotalSize: + *value = config->PFlashTotalSize; + break; + + case kFLASH_PropertyPflashBlockSize: + *value = config->PFlashTotalSize / FSL_FEATURE_FLASH_PFLASH_BLOCK_COUNT; + break; + + case kFLASH_PropertyPflashBlockCount: + *value = config->PFlashBlockCount; + break; + + case kFLASH_PropertyPflashBlockBaseAddr: + *value = config->PFlashBlockBase; + break; + + case kFLASH_PropertyPflashFacSupport: +#if defined(FSL_FEATURE_FLASH_HAS_ACCESS_CONTROL) + *value = FSL_FEATURE_FLASH_HAS_ACCESS_CONTROL; +#else + *value = 0; +#endif /* FSL_FEATURE_FLASH_HAS_ACCESS_CONTROL */ + break; + + case kFLASH_PropertyPflashAccessSegmentSize: + *value = config->PFlashAccessSegmentSize; + break; + + case kFLASH_PropertyPflashAccessSegmentCount: + *value = config->PFlashAccessSegmentCount; + break; + + case kFLASH_PropertyFlexRamBlockBaseAddr: + *value = config->FlexRAMBlockBase; + break; + + case kFLASH_PropertyFlexRamTotalSize: + *value = config->FlexRAMTotalSize; + break; + +#if FLASH_SSD_IS_FLEXNVM_ENABLED + case kFLASH_PropertyDflashSectorSize: + *value = FSL_FEATURE_FLASH_FLEX_NVM_BLOCK_SECTOR_SIZE; + break; + case kFLASH_PropertyDflashTotalSize: + *value = config->DFlashTotalSize; + break; + case kFLASH_PropertyDflashBlockSize: + *value = FSL_FEATURE_FLASH_FLEX_NVM_BLOCK_SIZE; + break; + case kFLASH_PropertyDflashBlockCount: + *value = FSL_FEATURE_FLASH_FLEX_NVM_BLOCK_COUNT; + break; + case kFLASH_PropertyDflashBlockBaseAddr: + *value = config->DFlashBlockBase; + break; + case kFLASH_PropertyEepromTotalSize: + *value = config->EEpromTotalSize; + break; +#endif /* FLASH_SSD_IS_FLEXNVM_ENABLED */ + + default: /* catch inputs that are not recognized */ + return kStatus_FLASH_UnknownProperty; + } + + return kStatus_FLASH_Success; +} + +#if defined(FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD) && FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD +status_t FLASH_SetFlexramFunction(flash_config_t *config, flash_flexram_function_option_t option) +{ + status_t status; + + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + status = flasn_check_flexram_function_option_range(option); + if (status != kStatus_FLASH_Success) + { + return status; + } + + /* preparing passing parameter to verify all block command */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_1_2(FTFx_SET_FLEXRAM_FUNCTION, option, 0xFFFFU); + + /* calling flash command sequence function to execute the command */ + return flash_command_sequence(config); +} +#endif /* FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD */ + +#if defined(FSL_FEATURE_FLASH_HAS_SWAP_CONTROL_CMD) && FSL_FEATURE_FLASH_HAS_SWAP_CONTROL_CMD +status_t FLASH_SwapControl(flash_config_t *config, + uint32_t address, + flash_swap_control_option_t option, + flash_swap_state_config_t *returnInfo) +{ + status_t returnCode; + + if ((config == NULL) || (returnInfo == NULL)) + { + return kStatus_FLASH_InvalidArgument; + } + + if (address & (FSL_FEATURE_FLASH_PFLASH_SWAP_CONTROL_CMD_ADDRESS_ALIGMENT - 1)) + { + return kStatus_FLASH_AlignmentError; + } + + /* Make sure address provided is in the lower half of Program flash but not in the Flash Configuration Field */ + if ((address >= (config->PFlashTotalSize / 2)) || + ((address >= kFLASH_ConfigAreaStart) && (address <= kFLASH_ConfigAreaEnd))) + { + return kStatus_FLASH_SwapIndicatorAddressError; + } + + /* Check the option. */ + returnCode = flash_check_swap_control_option(option); + if (returnCode) + { + return returnCode; + } + + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_3(FTFx_SWAP_CONTROL, address); + kFCCOBx[1] = BYTES_JOIN_TO_WORD_1_3(option, 0xFFFFFFU); + + returnCode = flash_command_sequence(config); + + returnInfo->flashSwapState = (flash_swap_state_t)FTFx->FCCOB5; + returnInfo->currentSwapBlockStatus = (flash_swap_block_status_t)FTFx->FCCOB6; + returnInfo->nextSwapBlockStatus = (flash_swap_block_status_t)FTFx->FCCOB7; + + return returnCode; +} +#endif /* FSL_FEATURE_FLASH_HAS_SWAP_CONTROL_CMD */ + +#if defined(FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP) && FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP +status_t FLASH_Swap(flash_config_t *config, uint32_t address, flash_swap_function_option_t option) +{ + flash_swap_state_config_t returnInfo; + status_t returnCode; + + memset(&returnInfo, 0xFFU, sizeof(returnInfo)); + + do + { + returnCode = FLASH_SwapControl(config, address, kFLASH_SwapControlOptionReportStatus, &returnInfo); + if (returnCode != kStatus_FLASH_Success) + { + return returnCode; + } + + if (kFLASH_SwapFunctionOptionDisable == option) + { + if (returnInfo.flashSwapState == kFLASH_SwapStateDisabled) + { + return kStatus_FLASH_Success; + } + else if (returnInfo.flashSwapState == kFLASH_SwapStateUninitialized) + { + /* The swap system changed to the DISABLED state with Program flash block 0 + * located at relative flash address 0x0_0000 */ + returnCode = FLASH_SwapControl(config, address, kFLASH_SwapControlOptionDisableSystem, &returnInfo); + } + else + { + /* Swap disable should be requested only when swap system is in the uninitialized state */ + return kStatus_FLASH_SwapSystemNotInUninitialized; + } + } + else + { + /* When first swap: the initial swap state is Uninitialized, flash swap inidicator address is unset, + * the swap procedure should be Uninitialized -> Update-Erased -> Complete. + * After the first swap has been completed, the flash swap inidicator address cannot be modified + * unless EraseAllBlocks command is issued, the swap procedure is changed to Update -> Update-Erased -> + * Complete. */ + switch (returnInfo.flashSwapState) + { + case kFLASH_SwapStateUninitialized: + /* If current swap mode is Uninitialized, Initialize Swap to Initialized/READY state. */ + returnCode = + FLASH_SwapControl(config, address, kFLASH_SwapControlOptionIntializeSystem, &returnInfo); + break; + case kFLASH_SwapStateReady: + /* Validate whether the address provided to the swap system is matched to + * swap indicator address in the IFR */ + returnCode = flash_validate_swap_indicator_address(config, address); + if (returnCode == kStatus_FLASH_Success) + { + /* If current swap mode is Initialized/Ready, Initialize Swap to UPDATE state. */ + returnCode = + FLASH_SwapControl(config, address, kFLASH_SwapControlOptionSetInUpdateState, &returnInfo); + } + break; + case kFLASH_SwapStateUpdate: + /* If current swap mode is Update, Erase indicator sector in non active block + * to proceed swap system to update-erased state */ + returnCode = FLASH_Erase(config, address + (config->PFlashTotalSize >> 1), + FSL_FEATURE_FLASH_PFLASH_SECTOR_CMD_ADDRESS_ALIGMENT, kFLASH_ApiEraseKey); + break; + case kFLASH_SwapStateUpdateErased: + /* If current swap mode is Update or Update-Erased, progress Swap to COMPLETE State */ + returnCode = + FLASH_SwapControl(config, address, kFLASH_SwapControlOptionSetInCompleteState, &returnInfo); + break; + case kFLASH_SwapStateComplete: + break; + case kFLASH_SwapStateDisabled: + /* When swap system is in disabled state, We need to clear swap system back to uninitialized + * by issuing EraseAllBlocks command */ + returnCode = kStatus_FLASH_SwapSystemNotInUninitialized; + break; + default: + returnCode = kStatus_FLASH_InvalidArgument; + break; + } + } + if (returnCode != kStatus_FLASH_Success) + { + break; + } + } while (!((kFLASH_SwapStateComplete == returnInfo.flashSwapState) && (kFLASH_SwapFunctionOptionEnable == option))); + + return returnCode; +} +#endif /* FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP */ + +#if defined(FSL_FEATURE_FLASH_HAS_PROGRAM_PARTITION_CMD) && FSL_FEATURE_FLASH_HAS_PROGRAM_PARTITION_CMD +status_t FLASH_ProgramPartition(flash_config_t *config, + flash_partition_flexram_load_option_t option, + uint32_t eepromDataSizeCode, + uint32_t flexnvmPartitionCode) +{ + status_t returnCode; + + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + /* eepromDataSizeCode[7:6], flexnvmPartitionCode[7:4] should be all 1'b0 + * or it will cause access error. */ + /* eepromDataSizeCode &= 0x3FU; */ + /* flexnvmPartitionCode &= 0x0FU; */ + + /* preparing passing parameter to program the flash block */ + kFCCOBx[0] = BYTES_JOIN_TO_WORD_1_2_1(FTFx_PROGRAM_PARTITION, 0xFFFFU, option); + kFCCOBx[1] = BYTES_JOIN_TO_WORD_1_1_2(eepromDataSizeCode, flexnvmPartitionCode, 0xFFFFU); + + /* calling flash command sequence function to execute the command */ + returnCode = flash_command_sequence(config); + + flash_cache_clear(config); + +#if FLASH_SSD_IS_FLEXNVM_ENABLED + /* Data flash IFR will be updated by program partition command during reset sequence, + * so we just set reserved values for partitioned FlexNVM size here */ + config->EEpromTotalSize = FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_RESERVED; + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif + + return (returnCode); +} +#endif /* FSL_FEATURE_FLASH_HAS_PROGRAM_PARTITION_CMD */ + +status_t FLASH_PflashSetProtection(flash_config_t *config, uint32_t protectStatus) +{ + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + *kFPROT = protectStatus; + + if (protectStatus != *kFPROT) + { + return kStatus_FLASH_CommandFailure; + } + + return kStatus_FLASH_Success; +} + +status_t FLASH_PflashGetProtection(flash_config_t *config, uint32_t *protectStatus) +{ + if ((config == NULL) || (protectStatus == NULL)) + { + return kStatus_FLASH_InvalidArgument; + } + + *protectStatus = *kFPROT; + + return kStatus_FLASH_Success; +} + +#if FLASH_SSD_IS_FLEXNVM_ENABLED +status_t FLASH_DflashSetProtection(flash_config_t *config, uint8_t protectStatus) +{ + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + if ((config->DFlashTotalSize == 0) || (config->DFlashTotalSize == FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED)) + { + return kStatus_FLASH_CommandNotSupported; + } + + FTFx->FDPROT = protectStatus; + + if (FTFx->FDPROT != protectStatus) + { + return kStatus_FLASH_CommandFailure; + } + + return kStatus_FLASH_Success; +} +#endif /* FLASH_SSD_IS_FLEXNVM_ENABLED */ + +#if FLASH_SSD_IS_FLEXNVM_ENABLED +status_t FLASH_DflashGetProtection(flash_config_t *config, uint8_t *protectStatus) +{ + if ((config == NULL) || (protectStatus == NULL)) + { + return kStatus_FLASH_InvalidArgument; + } + + if ((config->DFlashTotalSize == 0) || (config->DFlashTotalSize == FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED)) + { + return kStatus_FLASH_CommandNotSupported; + } + + *protectStatus = FTFx->FDPROT; + + return kStatus_FLASH_Success; +} +#endif /* FLASH_SSD_IS_FLEXNVM_ENABLED */ + +#if FLASH_SSD_IS_FLEXNVM_ENABLED +status_t FLASH_EepromSetProtection(flash_config_t *config, uint8_t protectStatus) +{ + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + if ((config->EEpromTotalSize == 0) || (config->EEpromTotalSize == FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_RESERVED)) + { + return kStatus_FLASH_CommandNotSupported; + } + + FTFx->FEPROT = protectStatus; + + if (FTFx->FEPROT != protectStatus) + { + return kStatus_FLASH_CommandFailure; + } + + return kStatus_FLASH_Success; +} +#endif /* FLASH_SSD_IS_FLEXNVM_ENABLED */ + +#if FLASH_SSD_IS_FLEXNVM_ENABLED +status_t FLASH_EepromGetProtection(flash_config_t *config, uint8_t *protectStatus) +{ + if ((config == NULL) || (protectStatus == NULL)) + { + return kStatus_FLASH_InvalidArgument; + } + + if ((config->EEpromTotalSize == 0) || (config->EEpromTotalSize == FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_RESERVED)) + { + return kStatus_FLASH_CommandNotSupported; + } + + *protectStatus = FTFx->FEPROT; + + return kStatus_FLASH_Success; +} +#endif /* FLASH_SSD_IS_FLEXNVM_ENABLED */ + +#if FLASH_DRIVER_IS_FLASH_RESIDENT +/*! + * @brief Copy PIC of flash_run_command() to RAM + */ +static void copy_flash_run_command(uint32_t *flashRunCommand) +{ + assert(sizeof(s_flashRunCommandFunctionCode) <= (kFLASH_ExecuteInRamFunctionMaxSizeInWords * 4)); + + /* Since the value of ARM function pointer is always odd, but the real start address + * of function memory should be even, that's why +1 operation exist. */ + memcpy((void *)flashRunCommand, (void *)s_flashRunCommandFunctionCode, sizeof(s_flashRunCommandFunctionCode)); + callFlashRunCommand = (void (*)(FTFx_REG_ACCESS_TYPE ftfx_fstat))((uint32_t)flashRunCommand + 1); +} +#endif /* FLASH_DRIVER_IS_FLASH_RESIDENT */ + +/*! + * @brief Flash Command Sequence + * + * This function is used to perform the command write sequence to the flash. + * + * @param driver Pointer to storage for the driver runtime state. + * @return An error code or kStatus_FLASH_Success + */ +static status_t flash_command_sequence(flash_config_t *config) +{ + uint8_t registerValue; + +#if FLASH_DRIVER_IS_FLASH_RESIDENT + /* clear RDCOLERR & ACCERR & FPVIOL flag in flash status register */ + FTFx->FSTAT = FTFx_FSTAT_RDCOLERR_MASK | FTFx_FSTAT_ACCERR_MASK | FTFx_FSTAT_FPVIOL_MASK; + + status_t returnCode = flash_check_execute_in_ram_function_info(config); + if (kStatus_FLASH_Success != returnCode) + { + return returnCode; + } + + /* We pass the ftfx_fstat address as a parameter to flash_run_comamnd() instead of using + * pre-processed MICRO sentences or operating global variable in flash_run_comamnd() + * to make sure that flash_run_command() will be compiled into position-independent code (PIC). */ + callFlashRunCommand((FTFx_REG_ACCESS_TYPE)(&FTFx->FSTAT)); +#else + /* clear RDCOLERR & ACCERR & FPVIOL flag in flash status register */ + FTFx->FSTAT = FTFx_FSTAT_RDCOLERR_MASK | FTFx_FSTAT_ACCERR_MASK | FTFx_FSTAT_FPVIOL_MASK; + + /* clear CCIF bit */ + FTFx->FSTAT = FTFx_FSTAT_CCIF_MASK; + + /* Check CCIF bit of the flash status register, wait till it is set. + * IP team indicates that this loop will always complete. */ + while (!(FTFx->FSTAT & FTFx_FSTAT_CCIF_MASK)) + { + } +#endif /* FLASH_DRIVER_IS_FLASH_RESIDENT */ + + /* Check error bits */ + /* Get flash status register value */ + registerValue = FTFx->FSTAT; + + /* checking access error */ + if (registerValue & FTFx_FSTAT_ACCERR_MASK) + { + return kStatus_FLASH_AccessError; + } + /* checking protection error */ + else if (registerValue & FTFx_FSTAT_FPVIOL_MASK) + { + return kStatus_FLASH_ProtectionViolation; + } + /* checking MGSTAT0 non-correctable error */ + else if (registerValue & FTFx_FSTAT_MGSTAT0_MASK) + { + return kStatus_FLASH_CommandFailure; + } + else + { + return kStatus_FLASH_Success; + } +} + +#if FLASH_DRIVER_IS_FLASH_RESIDENT +/*! + * @brief Copy PIC of flash_cache_clear_command() to RAM + * + */ +static void copy_flash_cache_clear_command(uint32_t *flashCacheClearCommand) +{ + assert(sizeof(s_flashCacheClearCommandFunctionCode) <= (kFLASH_ExecuteInRamFunctionMaxSizeInWords * 4)); + + /* Since the value of ARM function pointer is always odd, but the real start address + * of function memory should be even, that's why +1 operation exist. */ + memcpy((void *)flashCacheClearCommand, (void *)s_flashCacheClearCommandFunctionCode, + sizeof(s_flashCacheClearCommandFunctionCode)); + callFlashCacheClearCommand = (void (*)(FTFx_REG32_ACCESS_TYPE ftfx_reg))((uint32_t)flashCacheClearCommand + 1); +} +#endif /* FLASH_DRIVER_IS_FLASH_RESIDENT */ + +/*! + * @brief Flash Cache Clear + * + * This function is used to perform the cache clear to the flash. + */ +#if (defined(__GNUC__)) +/* #pragma GCC push_options */ +/* #pragma GCC optimize("O0") */ +void __attribute__((optimize("O0"))) flash_cache_clear(flash_config_t *config) +#else +#if (defined(__ICCARM__)) +#pragma optimize = none +#endif +#if (defined(__CC_ARM)) +#pragma push +#pragma O0 +#endif +void flash_cache_clear(flash_config_t *config) +#endif +{ +#if FLASH_DRIVER_IS_FLASH_RESIDENT + status_t returnCode = flash_check_execute_in_ram_function_info(config); + if (kStatus_FLASH_Success != returnCode) + { + return; + } + +/* We pass the ftfx register address as a parameter to flash_cache_clear_comamnd() instead of using + * pre-processed MACROs or a global variable in flash_cache_clear_comamnd() + * to make sure that flash_cache_clear_command() will be compiled into position-independent code (PIC). */ +#if defined(FSL_FEATURE_FLASH_HAS_MCM_FLASH_CACHE_CONTROLS) && FSL_FEATURE_FLASH_HAS_MCM_FLASH_CACHE_CONTROLS +#if defined(MCM) + callFlashCacheClearCommand((FTFx_REG32_ACCESS_TYPE)&MCM->PLACR); +#endif +#if defined(MCM0) + callFlashCacheClearCommand((FTFx_REG32_ACCESS_TYPE)&MCM0->PLACR); +#endif +#if defined(MCM1) + callFlashCacheClearCommand((FTFx_REG32_ACCESS_TYPE)&MCM1->PLACR); +#endif +#elif defined(FSL_FEATURE_FLASH_HAS_FMC_FLASH_CACHE_CONTROLS) && FSL_FEATURE_FLASH_HAS_FMC_FLASH_CACHE_CONTROLS +#if defined(FMC_PFB01CR_CINV_WAY_MASK) + callFlashCacheClearCommand((FTFx_REG32_ACCESS_TYPE)&FMC->PFB01CR); +#else + callFlashCacheClearCommand((FTFx_REG32_ACCESS_TYPE)&FMC->PFB0CR); +#endif +#elif defined(FSL_FEATURE_FLASH_HAS_MSCM_FLASH_CACHE_CONTROLS) && FSL_FEATURE_FLASH_HAS_MSCM_FLASH_CACHE_CONTROLS + callFlashCacheClearCommand((FTFx_REG32_ACCESS_TYPE)&MSCM->OCMDR[0]); +#else +#if defined(FMC_PFB0CR_S_INV_MASK) + callFlashCacheClearCommand((FTFx_REG32_ACCESS_TYPE)&FMC->PFB0CR); +#elif defined(FMC_PFB01CR_S_INV_MASK) + callFlashCacheClearCommand((FTFx_REG32_ACCESS_TYPE)&FMC->PFB01CR); +#else + /* meaningless code, just a workaround to solve warning*/ + callFlashCacheClearCommand((FTFx_REG32_ACCESS_TYPE)0); +#endif +/* #error "Unknown flash cache controller" */ +#endif /* FSL_FEATURE_FTFx_MCM_FLASH_CACHE_CONTROLS */ + +#else + +#if defined(FSL_FEATURE_FLASH_HAS_MCM_FLASH_CACHE_CONTROLS) && FSL_FEATURE_FLASH_HAS_MCM_FLASH_CACHE_CONTROLS +#if defined(MCM) + MCM->PLACR |= MCM_PLACR_CFCC_MASK; +#endif +#if defined(MCM0) + MCM0->PLACR |= MCM_PLACR_CFCC_MASK; +#endif +#if defined(MCM1) + MCM1->PLACR |= MCM_PLACR_CFCC_MASK; +#endif +#elif defined(FSL_FEATURE_FLASH_HAS_FMC_FLASH_CACHE_CONTROLS) && FSL_FEATURE_FLASH_HAS_FMC_FLASH_CACHE_CONTROLS +#if defined(FMC_PFB01CR_CINV_WAY_MASK) + FMC->PFB01CR = (FMC->PFB01CR & ~FMC_PFB01CR_CINV_WAY_MASK) | FMC_PFB01CR_CINV_WAY(~0); +#else + FMC->PFB0CR = (FMC->PFB0CR & ~FMC_PFB0CR_CINV_WAY_MASK) | FMC_PFB0CR_CINV_WAY(~0); +#endif +#elif defined(FSL_FEATURE_FLASH_HAS_MSCM_FLASH_CACHE_CONTROLS) && FSL_FEATURE_FLASH_HAS_MSCM_FLASH_CACHE_CONTROLS + MSCM->OCMDR[0] |= MSCM_OCMDR_OCMC1(2); + MSCM->OCMDR[0] |= MSCM_OCMDR_OCMC1(1); +#else +#if defined(FMC_PFB0CR_S_INV_MASK) + FMC->PFB0CR |= FMC_PFB0CR_S_INV_MASK; +#elif defined(FMC_PFB01CR_S_INV_MASK) + FMC->PFB01CR |= FMC_PFB01CR_S_INV_MASK; +#endif +/* #error "Unknown flash cache controller" */ +#endif /* FSL_FEATURE_FTFx_MCM_FLASH_CACHE_CONTROLS */ +#endif /* FLASH_DRIVER_IS_FLASH_RESIDENT */ +} +#if (defined(__CC_ARM)) +#pragma pop +#endif +#if (defined(__GNUC__)) +/* #pragma GCC pop_options */ +#endif + +#if FLASH_DRIVER_IS_FLASH_RESIDENT +/*! @brief Check whether flash execute-in-ram functions are ready */ +static status_t flash_check_execute_in_ram_function_info(flash_config_t *config) +{ + flash_execute_in_ram_function_config_t *flashExecuteInRamFunctionInfo; + + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + flashExecuteInRamFunctionInfo = (flash_execute_in_ram_function_config_t *)config->flashExecuteInRamFunctionInfo; + + if ((config->flashExecuteInRamFunctionInfo) && + (kFLASH_ExecuteInRamFunctionTotalNum == flashExecuteInRamFunctionInfo->activeFunctionCount)) + { + return kStatus_FLASH_Success; + } + + return kStatus_FLASH_ExecuteInRamFunctionNotReady; +} +#endif /* FLASH_DRIVER_IS_FLASH_RESIDENT */ + +/*! @brief Validates the range and alignment of the given address range.*/ +static status_t flash_check_range(flash_config_t *config, + uint32_t startAddress, + uint32_t lengthInBytes, + uint32_t alignmentBaseline) +{ + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + /* Verify the start and length are alignmentBaseline aligned. */ + if ((startAddress & (alignmentBaseline - 1)) || (lengthInBytes & (alignmentBaseline - 1))) + { + return kStatus_FLASH_AlignmentError; + } + +/* check for valid range of the target addresses */ +#if !FLASH_SSD_IS_FLEXNVM_ENABLED + if ((startAddress < config->PFlashBlockBase) || + ((startAddress + lengthInBytes) > (config->PFlashBlockBase + config->PFlashTotalSize))) +#else + if (!(((startAddress >= config->PFlashBlockBase) && + ((startAddress + lengthInBytes) <= (config->PFlashBlockBase + config->PFlashTotalSize))) || + ((startAddress >= config->DFlashBlockBase) && + ((startAddress + lengthInBytes) <= (config->DFlashBlockBase + config->DFlashTotalSize))))) +#endif + { + return kStatus_FLASH_AddressError; + } + + return kStatus_FLASH_Success; +} + +/*! @brief Gets the right address, sector and block size of current flash type which is indicated by address.*/ +static status_t flash_get_matched_operation_info(flash_config_t *config, + uint32_t address, + flash_operation_config_t *info) +{ + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + /* Clean up info Structure*/ + memset(info, 0, sizeof(flash_operation_config_t)); + +/* When required by the command, address bit 23 selects between program flash memory + * (=0) and data flash memory (=1).*/ +#if FLASH_SSD_IS_FLEXNVM_ENABLED + if ((address >= config->DFlashBlockBase) && (address <= (config->DFlashBlockBase + config->DFlashTotalSize))) + { + info->convertedAddress = address - config->DFlashBlockBase + 0x800000U; + info->activeSectorSize = FSL_FEATURE_FLASH_FLEX_NVM_BLOCK_SECTOR_SIZE; + info->activeBlockSize = config->DFlashTotalSize / FSL_FEATURE_FLASH_FLEX_NVM_BLOCK_COUNT; + + info->blockWriteUnitSize = FSL_FEATURE_FLASH_FLEX_NVM_BLOCK_WRITE_UNIT_SIZE; + info->sectorCmdAddressAligment = FSL_FEATURE_FLASH_FLEX_NVM_SECTOR_CMD_ADDRESS_ALIGMENT; + info->sectionCmdAddressAligment = FSL_FEATURE_FLASH_FLEX_NVM_SECTION_CMD_ADDRESS_ALIGMENT; + info->resourceCmdAddressAligment = FSL_FEATURE_FLASH_FLEX_NVM_RESOURCE_CMD_ADDRESS_ALIGMENT; + info->checkCmdAddressAligment = FSL_FEATURE_FLASH_FLEX_NVM_CHECK_CMD_ADDRESS_ALIGMENT; + } + else +#endif /* FLASH_SSD_IS_FLEXNVM_ENABLED */ + { + info->convertedAddress = address - config->PFlashBlockBase; + info->activeSectorSize = config->PFlashSectorSize; + info->activeBlockSize = config->PFlashTotalSize / config->PFlashBlockCount; + + info->blockWriteUnitSize = FSL_FEATURE_FLASH_PFLASH_BLOCK_WRITE_UNIT_SIZE; + info->sectorCmdAddressAligment = FSL_FEATURE_FLASH_PFLASH_SECTOR_CMD_ADDRESS_ALIGMENT; + info->sectionCmdAddressAligment = FSL_FEATURE_FLASH_PFLASH_SECTION_CMD_ADDRESS_ALIGMENT; + info->resourceCmdAddressAligment = FSL_FEATURE_FLASH_PFLASH_RESOURCE_CMD_ADDRESS_ALIGMENT; + info->checkCmdAddressAligment = FSL_FEATURE_FLASH_PFLASH_CHECK_CMD_ADDRESS_ALIGMENT; + } + + return kStatus_FLASH_Success; +} + +/*! @brief Validates the given user key for flash erase APIs.*/ +static status_t flash_check_user_key(uint32_t key) +{ + /* Validate the user key */ + if (key != kFLASH_ApiEraseKey) + { + return kStatus_FLASH_EraseKeyError; + } + + return kStatus_FLASH_Success; +} + +#if FLASH_SSD_IS_FLEXNVM_ENABLED +/*! @brief Updates FlexNVM memory partition status according to data flash 0 IFR.*/ +static status_t flash_update_flexnvm_memory_partition_status(flash_config_t *config) +{ + struct + { + uint32_t reserved0; + uint8_t FlexNVMPartitionCode; + uint8_t EEPROMDataSetSize; + uint16_t reserved1; + } dataIFRReadOut; + status_t returnCode; + + if (config == NULL) + { + return kStatus_FLASH_InvalidArgument; + } + + /* Get FlexNVM memory partition info from data flash IFR */ + returnCode = FLASH_ReadResource(config, DFLASH_IFR_READRESOURCE_START_ADDRESS, (uint32_t *)&dataIFRReadOut, + sizeof(dataIFRReadOut), kFLASH_ResourceOptionFlashIfr); + if (returnCode != kStatus_FLASH_Success) + { + return kStatus_FLASH_PartitionStatusUpdateFailure; + } + + /* Fill out partitioned EEPROM size */ + dataIFRReadOut.EEPROMDataSetSize &= 0x0FU; + switch (dataIFRReadOut.EEPROMDataSetSize) + { + case 0x00U: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_0000; + break; + case 0x01U: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_0001; + break; + case 0x02U: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_0010; + break; + case 0x03U: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_0011; + break; + case 0x04U: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_0100; + break; + case 0x05U: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_0101; + break; + case 0x06U: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_0110; + break; + case 0x07U: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_0111; + break; + case 0x08U: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_1000; + break; + case 0x09U: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_1001; + break; + case 0x0AU: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_1010; + break; + case 0x0BU: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_1011; + break; + case 0x0CU: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_1100; + break; + case 0x0DU: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_1101; + break; + case 0x0EU: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_1110; + break; + case 0x0FU: + config->EEpromTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_1111; + break; + default: + config->EEpromTotalSize = FLEX_NVM_EEPROM_SIZE_FOR_EEESIZE_RESERVED; + break; + } + + /* Fill out partitioned DFlash size */ + dataIFRReadOut.FlexNVMPartitionCode &= 0x0FU; + switch (dataIFRReadOut.FlexNVMPartitionCode) + { + case 0x00U: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0000 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0000; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0000 */ + break; + case 0x01U: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0001 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0001; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0001 */ + break; + case 0x02U: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0010 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0010; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0010 */ + break; + case 0x03U: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0011 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0011; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0011 */ + break; + case 0x04U: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0100 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0100; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0100 */ + break; + case 0x05U: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0101 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0101; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0101 */ + break; + case 0x06U: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0110 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0110; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0110 */ + break; + case 0x07U: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0111 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0111; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_0111 */ + break; + case 0x08U: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1000 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1000; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1000 */ + break; + case 0x09U: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1001 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1001; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1001 */ + break; + case 0x0AU: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1010 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1010; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1010 */ + break; + case 0x0BU: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1011 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1011; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1011 */ + break; + case 0x0CU: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1100 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1100; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1100 */ + break; + case 0x0DU: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1101 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1101; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1101 */ + break; + case 0x0EU: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1110 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1110; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1110 */ + break; + case 0x0FU: +#if (FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1111 != 0xFFFFFFFF) + config->DFlashTotalSize = FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1111; +#else + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; +#endif /* FSL_FEATURE_FLASH_FLEX_NVM_DFLASH_SIZE_FOR_DEPART_1111 */ + break; + default: + config->DFlashTotalSize = FLEX_NVM_DFLASH_SIZE_FOR_DEPART_RESERVED; + break; + } + + return kStatus_FLASH_Success; +} +#endif /* FLASH_SSD_IS_FLEXNVM_ENABLED */ + +#if defined(FSL_FEATURE_FLASH_HAS_READ_RESOURCE_CMD) && FSL_FEATURE_FLASH_HAS_READ_RESOURCE_CMD +/*! @brief Validates the range of the given resource address.*/ +static status_t flash_check_resource_range(uint32_t start, + uint32_t lengthInBytes, + uint32_t alignmentBaseline, + flash_read_resource_option_t option) +{ + status_t status; + uint32_t maxReadbleAddress; + + if ((start & (alignmentBaseline - 1)) || (lengthInBytes & (alignmentBaseline - 1))) + { + return kStatus_FLASH_AlignmentError; + } + + status = kStatus_FLASH_Success; + + maxReadbleAddress = start + lengthInBytes - 1; + if (option == kFLASH_ResourceOptionVersionId) + { + if ((start != kFLASH_ResourceRangeVersionIdStart) || + ((start + lengthInBytes - 1) != kFLASH_ResourceRangeVersionIdEnd)) + { + status = kStatus_FLASH_InvalidArgument; + } + } + else if (option == kFLASH_ResourceOptionFlashIfr) + { + if (maxReadbleAddress < kFLASH_ResourceRangePflashIfrSizeInBytes) + { + } +#if defined(FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP) && FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP + else if ((start >= kFLASH_ResourceRangePflashSwapIfrStart) && + (maxReadbleAddress <= kFLASH_ResourceRangePflashSwapIfrEnd)) + { + } +#endif /* FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP */ + else if ((start >= kFLASH_ResourceRangeDflashIfrStart) && + (maxReadbleAddress <= kFLASH_ResourceRangeDflashIfrEnd)) + { + } + else + { + status = kStatus_FLASH_InvalidArgument; + } + } + else + { + status = kStatus_FLASH_InvalidArgument; + } + + return status; +} +#endif /* FSL_FEATURE_FLASH_HAS_READ_RESOURCE_CMD */ + +#if defined(FSL_FEATURE_FLASH_HAS_SWAP_CONTROL_CMD) && FSL_FEATURE_FLASH_HAS_SWAP_CONTROL_CMD +/*! @brief Validates the gived swap control option.*/ +static status_t flash_check_swap_control_option(flash_swap_control_option_t option) +{ + if ((option == kFLASH_SwapControlOptionIntializeSystem) || (option == kFLASH_SwapControlOptionSetInUpdateState) || + (option == kFLASH_SwapControlOptionSetInCompleteState) || (option == kFLASH_SwapControlOptionReportStatus) || + (option == kFLASH_SwapControlOptionDisableSystem)) + { + return kStatus_FLASH_Success; + } + + return kStatus_FLASH_InvalidArgument; +} +#endif /* FSL_FEATURE_FLASH_HAS_SWAP_CONTROL_CMD */ + +#if defined(FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP) && FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP +/*! @brief Validates the gived address to see if it is equal to swap indicator address in pflash swap IFR.*/ +static status_t flash_validate_swap_indicator_address(flash_config_t *config, uint32_t address) +{ + flash_swap_ifr_field_data_t flashSwapIfrFieldData; + uint32_t swapIndicatorAddress; + + status_t returnCode; + returnCode = + FLASH_ReadResource(config, kFLASH_ResourceRangePflashSwapIfrStart, flashSwapIfrFieldData.flashSwapIfrData, + sizeof(flashSwapIfrFieldData.flashSwapIfrData), kFLASH_ResourceOptionFlashIfr); + + if (returnCode != kStatus_FLASH_Success) + { + return returnCode; + } + + /* The high bits value of Swap Indicator Address is stored in Program Flash Swap IFR Field, + * the low severval bit value of Swap Indicator Address is always 1'b0 */ + swapIndicatorAddress = (uint32_t)flashSwapIfrFieldData.flashSwapIfrField.swapIndicatorAddress * + FSL_FEATURE_FLASH_PFLASH_SWAP_CONTROL_CMD_ADDRESS_ALIGMENT; + if (address != swapIndicatorAddress) + { + return kStatus_FLASH_SwapIndicatorAddressError; + } + + return returnCode; +} +#endif /* FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP */ + +#if defined(FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD) && FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD +/*! @brief Validates the gived flexram function option.*/ +static inline status_t flasn_check_flexram_function_option_range(flash_flexram_function_option_t option) +{ + if ((option != kFLASH_FlexramFunctionOptionAvailableAsRam) && + (option != kFLASH_FlexramFunctionOptionAvailableForEeprom)) + { + return kStatus_FLASH_InvalidArgument; + } + + return kStatus_FLASH_Success; +} +#endif /* FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD */ diff --git a/drivers/fsl_flash.h b/drivers/fsl_flash.h new file mode 100644 index 0000000..8941ad7 --- /dev/null +++ b/drivers/fsl_flash.h @@ -0,0 +1,1209 @@ +/* + * Copyright (c) 2013-2016, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_FLASH_H_ +#define _FSL_FLASH_H_ + +#if (defined(BL_TARGET_FLASH) || defined(BL_TARGET_ROM) || defined(BL_TARGET_RAM)) +#include <assert.h> +#include <string.h> +#include "fsl_device_registers.h" +#include "bootloader_common.h" +#else +#include "fsl_common.h" +#endif + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! + * @addtogroup flash_driver + * @{ + */ + +/*! + * @name Flash version + * @{ + */ +/*! @brief Construct the version number for drivers. */ +#if !defined(MAKE_VERSION) +#define MAKE_VERSION(major, minor, bugfix) (((major) << 16) | ((minor) << 8) | (bugfix)) +#endif + +/*! @brief FLASH driver version for SDK*/ +#define FSL_FLASH_DRIVER_VERSION (MAKE_VERSION(2, 1, 0)) /*!< Version 2.1.0. */ + +/*! @brief FLASH driver version for ROM*/ +enum _flash_driver_version_constants +{ + kFLASH_DriverVersionName = 'F', /*!< Flash driver version name.*/ + kFLASH_DriverVersionMajor = 2, /*!< Major flash driver version.*/ + kFLASH_DriverVersionMinor = 1, /*!< Minor flash driver version.*/ + kFLASH_DriverVersionBugfix = 0 /*!< Bugfix for flash driver version.*/ +}; +/*@}*/ + +/*! + * @name Flash configuration + * @{ + */ +/*! @brief Whether to support FlexNVM in flash driver */ +#if !defined(FLASH_SSD_CONFIG_ENABLE_FLEXNVM_SUPPORT) +#define FLASH_SSD_CONFIG_ENABLE_FLEXNVM_SUPPORT 1 /*!< Enable FlexNVM support by default. */ +#endif + +/*! @brief Whether the FlexNVM is enabled in flash driver */ +#define FLASH_SSD_IS_FLEXNVM_ENABLED (FLASH_SSD_CONFIG_ENABLE_FLEXNVM_SUPPORT && FSL_FEATURE_FLASH_HAS_FLEX_NVM) + +/*! @brief Flash driver location. */ +#if !defined(FLASH_DRIVER_IS_FLASH_RESIDENT) +#if (!defined(BL_TARGET_ROM) && !defined(BL_TARGET_RAM)) +#define FLASH_DRIVER_IS_FLASH_RESIDENT 1 /*!< Used for flash resident application. */ +#else +#define FLASH_DRIVER_IS_FLASH_RESIDENT 0 /*!< Used for non-flash resident application. */ +#endif +#endif + +/*! @brief Flash Driver Export option */ +#if !defined(FLASH_DRIVER_IS_EXPORTED) +#if (defined(BL_TARGET_ROM) || defined(BL_TARGET_FLASH)) +#define FLASH_DRIVER_IS_EXPORTED 1 /*!< Used for ROM bootloader. */ +#else +#define FLASH_DRIVER_IS_EXPORTED 0 /*!< Used for SDK application. */ +#endif +#endif +/*@}*/ + +/*! + * @name Flash status + * @{ + */ +/*! @brief Flash driver status group. */ +#if defined(kStatusGroup_FlashDriver) +#define kStatusGroupGeneric kStatusGroup_Generic +#define kStatusGroupFlashDriver kStatusGroup_FlashDriver +#elif defined(kStatusGroup_FLASH) +#define kStatusGroupGeneric kStatusGroup_Generic +#define kStatusGroupFlashDriver kStatusGroup_FLASH +#else +#define kStatusGroupGeneric 0 +#define kStatusGroupFlashDriver 1 +#endif + +/*! @brief Construct a status code value from a group and code number. */ +#if !defined(MAKE_STATUS) +#define MAKE_STATUS(group, code) ((((group)*100) + (code))) +#endif + +/*! + * @brief Flash driver status codes. + */ +enum _flash_status +{ + kStatus_FLASH_Success = MAKE_STATUS(kStatusGroupGeneric, 0), /*!< API is executed successfully*/ + kStatus_FLASH_InvalidArgument = MAKE_STATUS(kStatusGroupGeneric, 4), /*!< Invalid argument*/ + kStatus_FLASH_SizeError = MAKE_STATUS(kStatusGroupFlashDriver, 0), /*!< Error size*/ + kStatus_FLASH_AlignmentError = + MAKE_STATUS(kStatusGroupFlashDriver, 1), /*!< Parameter is not aligned with specified baseline*/ + kStatus_FLASH_AddressError = MAKE_STATUS(kStatusGroupFlashDriver, 2), /*!< Address is out of range */ + kStatus_FLASH_AccessError = + MAKE_STATUS(kStatusGroupFlashDriver, 3), /*!< Invalid instruction codes and out-of bounds addresses */ + kStatus_FLASH_ProtectionViolation = MAKE_STATUS( + kStatusGroupFlashDriver, 4), /*!< The program/erase operation is requested to execute on protected areas */ + kStatus_FLASH_CommandFailure = + MAKE_STATUS(kStatusGroupFlashDriver, 5), /*!< Run-time error during command execution. */ + kStatus_FLASH_UnknownProperty = MAKE_STATUS(kStatusGroupFlashDriver, 6), /*!< Unknown property.*/ + kStatus_FLASH_EraseKeyError = MAKE_STATUS(kStatusGroupFlashDriver, 7), /*!< API erase key is invalid.*/ + kStatus_FLASH_RegionExecuteOnly = MAKE_STATUS(kStatusGroupFlashDriver, 8), /*!< Current region is execute only.*/ + kStatus_FLASH_ExecuteInRamFunctionNotReady = + MAKE_STATUS(kStatusGroupFlashDriver, 9), /*!< Execute-in-RAM function is not available.*/ + kStatus_FLASH_PartitionStatusUpdateFailure = + MAKE_STATUS(kStatusGroupFlashDriver, 10), /*!< Failed to update partition status.*/ + kStatus_FLASH_SetFlexramAsEepromError = + MAKE_STATUS(kStatusGroupFlashDriver, 11), /*!< Failed to set flexram as eeprom.*/ + kStatus_FLASH_RecoverFlexramAsRamError = + MAKE_STATUS(kStatusGroupFlashDriver, 12), /*!< Failed to recover flexram as RAM.*/ + kStatus_FLASH_SetFlexramAsRamError = MAKE_STATUS(kStatusGroupFlashDriver, 13), /*!< Failed to set flexram as RAM.*/ + kStatus_FLASH_RecoverFlexramAsEepromError = + MAKE_STATUS(kStatusGroupFlashDriver, 14), /*!< Failed to recover flexram as eeprom.*/ + kStatus_FLASH_CommandNotSupported = MAKE_STATUS(kStatusGroupFlashDriver, 15), /*!< Flash API is not supported.*/ + kStatus_FLASH_SwapSystemNotInUninitialized = + MAKE_STATUS(kStatusGroupFlashDriver, 16), /*!< Swap system is not in uninitialzed state.*/ + kStatus_FLASH_SwapIndicatorAddressError = + MAKE_STATUS(kStatusGroupFlashDriver, 17), /*!< Swap indicator address is invalid.*/ +}; +/*@}*/ + +/*! + * @name Flash API key + * @{ + */ +/*! @brief Construct the four char code for flash driver API key. */ +#if !defined(FOUR_CHAR_CODE) +#define FOUR_CHAR_CODE(a, b, c, d) (((d) << 24) | ((c) << 16) | ((b) << 8) | ((a))) +#endif + +/*! + * @brief Enumeration for flash driver API keys. + * + * @note The resulting value is built with a byte order such that the string + * being readable in expected order when viewed in a hex editor, if the value + * is treated as a 32-bit little endian value. + */ +enum _flash_driver_api_keys +{ + kFLASH_ApiEraseKey = FOUR_CHAR_CODE('k', 'f', 'e', 'k') /*!< Key value used to validate all flash erase APIs.*/ +}; +/*@}*/ + +/*! + * @brief Enumeration for supported flash margin levels. + */ +typedef enum _flash_margin_value +{ + kFLASH_MarginValueNormal, /*!< Use the 'normal' read level for 1s.*/ + kFLASH_MarginValueUser, /*!< Apply the 'User' margin to the normal read-1 level.*/ + kFLASH_MarginValueFactory, /*!< Apply the 'Factory' margin to the normal read-1 level.*/ + kFLASH_MarginValueInvalid /*!< Not real margin level, Used to determine the range of valid margin level. */ +} flash_margin_value_t; + +/*! + * @brief Enumeration for the three possible flash security states. + */ +typedef enum _flash_security_state +{ + kFLASH_SecurityStateNotSecure, /*!< Flash is not secure.*/ + kFLASH_SecurityStateBackdoorEnabled, /*!< Flash backdoor is enabled.*/ + kFLASH_SecurityStateBackdoorDisabled /*!< Flash backdoor is disabled.*/ +} flash_security_state_t; + +/*! + * @brief Enumeration for the three possible flash protection levels. + */ +typedef enum _flash_protection_state +{ + kFLASH_ProtectionStateUnprotected, /*!< Flash region is not protected.*/ + kFLASH_ProtectionStateProtected, /*!< Flash region is protected.*/ + kFLASH_ProtectionStateMixed /*!< Flash is mixed with protected and unprotected region.*/ +} flash_protection_state_t; + +/*! + * @brief Enumeration for the three possible flash execute access levels. + */ +typedef enum _flash_execute_only_access_state +{ + kFLASH_AccessStateUnLimited, /*!< Flash region is unLimited.*/ + kFLASH_AccessStateExecuteOnly, /*!< Flash region is execute only.*/ + kFLASH_AccessStateMixed /*!< Flash is mixed with unLimited and execute only region.*/ +} flash_execute_only_access_state_t; + +/*! + * @brief Enumeration for various flash properties. + */ +typedef enum _flash_property_tag +{ + kFLASH_PropertyPflashSectorSize = 0x00U, /*!< Pflash sector size property.*/ + kFLASH_PropertyPflashTotalSize = 0x01U, /*!< Pflash total size property.*/ + kFLASH_PropertyPflashBlockSize = 0x02U, /*!< Pflash block size property.*/ + kFLASH_PropertyPflashBlockCount = 0x03U, /*!< Pflash block count property.*/ + kFLASH_PropertyPflashBlockBaseAddr = 0x04U, /*!< Pflash block base address property.*/ + kFLASH_PropertyPflashFacSupport = 0x05U, /*!< Pflash fac support property.*/ + kFLASH_PropertyPflashAccessSegmentSize = 0x06U, /*!< Pflash access segment size property.*/ + kFLASH_PropertyPflashAccessSegmentCount = 0x07U, /*!< Pflash access segment count property.*/ + kFLASH_PropertyFlexRamBlockBaseAddr = 0x08U, /*!< FlexRam block base address property.*/ + kFLASH_PropertyFlexRamTotalSize = 0x09U, /*!< FlexRam total size property.*/ + kFLASH_PropertyDflashSectorSize = 0x10U, /*!< Dflash sector size property.*/ + kFLASH_PropertyDflashTotalSize = 0x11U, /*!< Dflash total size property.*/ + kFLASH_PropertyDflashBlockSize = 0x12U, /*!< Dflash block count property.*/ + kFLASH_PropertyDflashBlockCount = 0x13U, /*!< Dflash block base address property.*/ + kFLASH_PropertyDflashBlockBaseAddr = 0x14U, /*!< Eeprom total size property.*/ + kFLASH_PropertyEepromTotalSize = 0x15U +} flash_property_tag_t; + +/*! + * @brief Constants for execute-in-RAM flash function. + */ +enum _flash_execute_in_ram_function_constants +{ + kFLASH_ExecuteInRamFunctionMaxSizeInWords = 16U, /*!< Max size of execute-in-RAM function.*/ + kFLASH_ExecuteInRamFunctionTotalNum = 2U /*!< Total number of execute-in-RAM functions.*/ +}; + +/*! + * @brief Flash execute-in-RAM function information. + */ +typedef struct _flash_execute_in_ram_function_config +{ + uint32_t activeFunctionCount; /*!< Number of available execute-in-RAM functions.*/ + uint32_t *flashRunCommand; /*!< execute-in-RAM function: flash_run_command.*/ + uint32_t *flashCacheClearCommand; /*!< execute-in-RAM function: flash_cache_clear_command.*/ +} flash_execute_in_ram_function_config_t; + +/*! + * @brief Enumeration for the two possible options of flash read resource command. + */ +typedef enum _flash_read_resource_option +{ + kFLASH_ResourceOptionFlashIfr = + 0x00U, /*!< Select code for Program flash 0 IFR, Program flash swap 0 IFR, Data flash 0 IFR */ + kFLASH_ResourceOptionVersionId = 0x01U /*!< Select code for Version ID*/ +} flash_read_resource_option_t; + +/*! + * @brief Enumeration for the range of special-purpose flash resource + */ +enum _flash_read_resource_range +{ +#if (FSL_FEATURE_FLASH_IS_FTFE == 1) + kFLASH_ResourceRangePflashIfrSizeInBytes = 1024U, /*!< Pflash IFR size in byte.*/ + kFLASH_ResourceRangeVersionIdSizeInBytes = 8U, /*!< Version ID IFR size in byte.*/ + kFLASH_ResourceRangeVersionIdStart = 0x08U, /*!< Version ID IFR start address.*/ + kFLASH_ResourceRangeVersionIdEnd = 0x0FU, /*!< Version ID IFR end address.*/ + kFLASH_ResourceRangePflashSwapIfrStart = 0x40000U, /*!< Pflash swap IFR start address.*/ + kFLASH_ResourceRangePflashSwapIfrEnd = + (kFLASH_ResourceRangePflashSwapIfrStart + 0x3FFU), /*!< Pflash swap IFR end address.*/ +#else /* FSL_FEATURE_FLASH_IS_FTFL == 1 or FSL_FEATURE_FLASH_IS_FTFA = =1 */ + kFLASH_ResourceRangePflashIfrSizeInBytes = 256U, /*!< Pflash IFR size in byte.*/ + kFLASH_ResourceRangeVersionIdSizeInBytes = 8U, /*!< Version ID IFR size in byte.*/ + kFLASH_ResourceRangeVersionIdStart = 0x00U, /*!< Version ID IFR start address.*/ + kFLASH_ResourceRangeVersionIdEnd = 0x07U, /*!< Version ID IFR end address.*/ +#if 0x20000U == (FSL_FEATURE_FLASH_PFLASH_BLOCK_COUNT * FSL_FEATURE_FLASH_PFLASH_BLOCK_SIZE) + kFLASH_ResourceRangePflashSwapIfrStart = 0x8000U, /*!< Pflash swap IFR start address.*/ +#elif 0x40000U == (FSL_FEATURE_FLASH_PFLASH_BLOCK_COUNT * FSL_FEATURE_FLASH_PFLASH_BLOCK_SIZE) + kFLASH_ResourceRangePflashSwapIfrStart = 0x10000U, /*!< Pflash swap IFR start address.*/ +#elif 0x80000U == (FSL_FEATURE_FLASH_PFLASH_BLOCK_COUNT * FSL_FEATURE_FLASH_PFLASH_BLOCK_SIZE) + kFLASH_ResourceRangePflashSwapIfrStart = 0x20000U, /*!< Pflash swap IFR start address.*/ +#else + kFLASH_ResourceRangePflashSwapIfrStart = 0, +#endif + kFLASH_ResourceRangePflashSwapIfrEnd = + (kFLASH_ResourceRangePflashSwapIfrStart + 0xFFU), /*!< Pflash swap IFR end address.*/ +#endif + kFLASH_ResourceRangeDflashIfrStart = 0x800000U, /*!< Dflash IFR start address.*/ + kFLASH_ResourceRangeDflashIfrEnd = 0x8003FFU, /*!< Dflash IFR end address.*/ +}; + +/*! + * @brief Enumeration for the two possilbe options of set flexram function command. + */ +typedef enum _flash_flexram_function_option +{ + kFLASH_FlexramFunctionOptionAvailableAsRam = 0xFFU, /*!< Option used to make FlexRAM available as RAM */ + kFLASH_FlexramFunctionOptionAvailableForEeprom = 0x00U /*!< Option used to make FlexRAM available for EEPROM */ +} flash_flexram_function_option_t; + +/*! + * @brief Enumeration for acceleration RAM property. + */ +enum _flash_acceleration_ram_property +{ + kFLASH_AccelerationRamSize = 0x400U +}; + +/*! + * @brief Enumeration for the possible options of Swap function + */ +typedef enum _flash_swap_function_option +{ + kFLASH_SwapFunctionOptionEnable = 0x00U, /*!< Option used to enable Swap function */ + kFLASH_SwapFunctionOptionDisable = 0x01U /*!< Option used to Disable Swap function */ +} flash_swap_function_option_t; + +/*! + * @brief Enumeration for the possible options of Swap Control commands + */ +typedef enum _flash_swap_control_option +{ + kFLASH_SwapControlOptionIntializeSystem = 0x01U, /*!< Option used to Intialize Swap System */ + kFLASH_SwapControlOptionSetInUpdateState = 0x02U, /*!< Option used to Set Swap in Update State */ + kFLASH_SwapControlOptionSetInCompleteState = 0x04U, /*!< Option used to Set Swap in Complete State */ + kFLASH_SwapControlOptionReportStatus = 0x08U, /*!< Option used to Report Swap Status */ + kFLASH_SwapControlOptionDisableSystem = 0x10U /*!< Option used to Disable Swap Status */ +} flash_swap_control_option_t; + +/*! + * @brief Enumeration for the possible flash swap status. + */ +typedef enum _flash_swap_state +{ + kFLASH_SwapStateUninitialized = 0x00U, /*!< Flash swap system is in uninitialized state.*/ + kFLASH_SwapStateReady = 0x01U, /*!< Flash swap system is in ready state.*/ + kFLASH_SwapStateUpdate = 0x02U, /*!< Flash swap system is in update state.*/ + kFLASH_SwapStateUpdateErased = 0x03U, /*!< Flash swap system is in updateErased state.*/ + kFLASH_SwapStateComplete = 0x04U, /*!< Flash swap system is in complete state.*/ + kFLASH_SwapStateDisabled = 0x05U /*!< Flash swap system is in disabled state.*/ +} flash_swap_state_t; + +/*! + * @breif Enumeration for the possible flash swap block status + */ +typedef enum _flash_swap_block_status +{ + kFLASH_SwapBlockStatusLowerHalfProgramBlocksAtZero = + 0x00U, /*!< Swap block status is that lower half program block at zero.*/ + kFLASH_SwapBlockStatusUpperHalfProgramBlocksAtZero = + 0x01U, /*!< Swap block status is that upper half program block at zero.*/ +} flash_swap_block_status_t; + +/*! + * @brief Flash Swap information. + */ +typedef struct _flash_swap_state_config +{ + flash_swap_state_t flashSwapState; /*!< Current swap system status.*/ + flash_swap_block_status_t currentSwapBlockStatus; /*!< Current swap block status.*/ + flash_swap_block_status_t nextSwapBlockStatus; /*!< Next swap block status.*/ +} flash_swap_state_config_t; + +/*! + * @brief Flash Swap IFR fields. + */ +typedef struct _flash_swap_ifr_field_config +{ + uint16_t swapIndicatorAddress; /*!< Swap indicator address field.*/ + uint16_t swapEnableWord; /*!< Swap enable word field.*/ + uint8_t reserved0[4]; /*!< Reserved field.*/ +#if (FSL_FEATURE_FLASH_IS_FTFE == 1) + uint8_t reserved1[2]; /*!< Reserved field.*/ + uint16_t swapDisableWord; /*!< Swap disable word field.*/ + uint8_t reserved2[4]; /*!< Reserved field.*/ +#endif +} flash_swap_ifr_field_config_t; + +/*! + * @brief Flash Swap IFR field data. + */ +typedef union _flash_swap_ifr_field_data +{ + uint32_t flashSwapIfrData[2]; /*!< Flash Swap IFR field data .*/ + flash_swap_ifr_field_config_t flashSwapIfrField; /*!< Flash Swap IFR field struct.*/ +} flash_swap_ifr_field_data_t; + +/*! + * @brief Enumeration for FlexRAM load during reset option. + */ +typedef enum _flash_partition_flexram_load_option +{ + kFLASH_PartitionFlexramLoadOptionLoadedWithValidEepromData = + 0x00U, /*!< FlexRAM is loaded with valid EEPROM data during reset sequence.*/ + kFLASH_PartitionFlexramLoadOptionNotLoaded = 0x01U /*!< FlexRAM is not loaded during reset sequence.*/ +} flash_partition_flexram_load_option_t; + +/*! @brief callback type used for pflash block*/ +typedef void (*flash_callback_t)(void); + +/*! + * @brief Active flash information for current operation. + */ +typedef struct _flash_operation_config +{ + uint32_t convertedAddress; /*!< Converted address for current flash type.*/ + uint32_t activeSectorSize; /*!< Sector size of current flash type.*/ + uint32_t activeBlockSize; /*!< Block size of current flash type.*/ + uint32_t blockWriteUnitSize; /*!< write unit size.*/ + uint32_t sectorCmdAddressAligment; /*!< Erase sector command address alignment.*/ + uint32_t sectionCmdAddressAligment; /*!< Program/Verify section command address alignment.*/ + uint32_t resourceCmdAddressAligment; /*!< Read resource command address alignment.*/ + uint32_t checkCmdAddressAligment; /*!< Program check command address alignment.*/ +} flash_operation_config_t; + +/*! @brief Flash driver state information. + * + * An instance of this structure is allocated by the user of the flash driver and + * passed into each of the driver APIs. + */ +typedef struct _flash_config +{ + uint32_t PFlashBlockBase; /*!< Base address of the first PFlash block */ + uint32_t PFlashTotalSize; /*!< Size of all combined PFlash block. */ + uint32_t PFlashBlockCount; /*!< Number of PFlash blocks. */ + uint32_t PFlashSectorSize; /*!< Size in bytes of a sector of PFlash. */ + flash_callback_t PFlashCallback; /*!< Callback function for flash API. */ + uint32_t PFlashAccessSegmentSize; /*!< Size in bytes of a access segment of PFlash. */ + uint32_t PFlashAccessSegmentCount; /*!< Number of PFlash access segments. */ + uint32_t *flashExecuteInRamFunctionInfo; /*!< Info struct of flash execute-in-RAM function. */ + uint32_t FlexRAMBlockBase; /*!< For FlexNVM device, this is the base address of FlexRAM + For non-FlexNVM device, this is the base address of acceleration RAM memory */ + uint32_t FlexRAMTotalSize; /*!< For FlexNVM device, this is the size of FlexRAM + For non-FlexNVM device, this is the size of acceleration RAM memory */ + uint32_t DFlashBlockBase; /*!< For FlexNVM device, this is the base address of D-Flash memory (FlexNVM memory); + For non-FlexNVM device, this field is unused */ + uint32_t DFlashTotalSize; /*!< For FlexNVM device, this is total size of the FlexNVM memory; + For non-FlexNVM device, this field is unused */ + uint32_t EEpromTotalSize; /*!< For FlexNVM device, this is the size in byte of EEPROM area which was partitioned + from FlexRAM; + For non-FlexNVM device, this field is unused */ +} flash_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name Initialization + * @{ + */ + +/*! + * @brief Initializes global flash properties structure members + * + * This function checks and initializes Flash module for the other Flash APIs. + * + * @param config Pointer to storage for the driver runtime state. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_PartitionStatusUpdateFailure Failed to update partition status. + */ +status_t FLASH_Init(flash_config_t *config); + +/*! + * @brief Set the desired flash callback function + * + * @param config Pointer to storage for the driver runtime state. + * @param callback callback function to be stored in driver + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + */ +status_t FLASH_SetCallback(flash_config_t *config, flash_callback_t callback); + +/*! + * @brief Prepare flash execute-in-RAM functions + * + * @param config Pointer to storage for the driver runtime state. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + */ +#if FLASH_DRIVER_IS_FLASH_RESIDENT +status_t FLASH_PrepareExecuteInRamFunctions(flash_config_t *config); +#endif + +/*@}*/ + +/*! + * @name Erasing + * @{ + */ + +/*! + * @brief Erases entire flash + * + * @param config Pointer to storage for the driver runtime state. + * @param key value used to validate all flash erase APIs. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_EraseKeyError API erase key is invalid. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + * @retval #kStatus_FLASH_PartitionStatusUpdateFailure Failed to update partition status + */ +status_t FLASH_EraseAll(flash_config_t *config, uint32_t key); + +/*! + * @brief Erases flash sectors encompassed by parameters passed into function + * + * This function erases the appropriate number of flash sectors based on the + * desired start address and length. + * + * @param config Pointer to storage for the driver runtime state. + * @param start The start address of the desired flash memory to be erased. + * The start address does not need to be sector aligned but must be word-aligned. + * @param lengthInBytes The length, given in bytes (not words or long-words) + * to be erased. Must be word aligned. + * @param key value used to validate all flash erase APIs. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_AlignmentError Parameter is not aligned with specified baseline. + * @retval #kStatus_FLASH_AddressError Address is out of range. + * @retval #kStatus_FLASH_EraseKeyError API erase key is invalid. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +status_t FLASH_Erase(flash_config_t *config, uint32_t start, uint32_t lengthInBytes, uint32_t key); + +/*! + * @brief Erases entire flash, including protected sectors. + * + * @param config Pointer to storage for the driver runtime state. + * @param key value used to validate all flash erase APIs. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_EraseKeyError API erase key is invalid. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + * @retval #kStatus_FLASH_PartitionStatusUpdateFailure Failed to update partition status + */ +#if defined(FSL_FEATURE_FLASH_HAS_ERASE_ALL_BLOCKS_UNSECURE_CMD) && FSL_FEATURE_FLASH_HAS_ERASE_ALL_BLOCKS_UNSECURE_CMD +status_t FLASH_EraseAllUnsecure(flash_config_t *config, uint32_t key); +#endif + +/*! + * @brief Erases all program flash execute-only segments defined by the FXACC registers. + * + * @param config Pointer to storage for the driver runtime state. + * @param key value used to validate all flash erase APIs. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_EraseKeyError API erase key is invalid. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +status_t FLASH_EraseAllExecuteOnlySegments(flash_config_t *config, uint32_t key); + +/*@}*/ + +/*! + * @name Programming + * @{ + */ + +/*! + * @brief Programs flash with data at locations passed in through parameters + * + * This function programs the flash memory with desired data for a given + * flash area as determined by the start address and length. + * + * @param config Pointer to storage for the driver runtime state. + * @param start The start address of the desired flash memory to be programmed. Must be + * word-aligned. + * @param src Pointer to the source buffer of data that is to be programmed + * into the flash. + * @param lengthInBytes The length, given in bytes (not words or long-words) + * to be programmed. Must be word-aligned. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_AlignmentError Parameter is not aligned with specified baseline. + * @retval #kStatus_FLASH_AddressError Address is out of range. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +status_t FLASH_Program(flash_config_t *config, uint32_t start, uint32_t *src, uint32_t lengthInBytes); + +/*! + * @brief Programs Program Once Field through parameters + * + * This function programs the Program Once Field with desired data for a given + * flash area as determined by the index and length. + * + * @param config Pointer to storage for the driver runtime state. + * @param index The index indicating which area of Program Once Field to be programmed. + * @param src Pointer to the source buffer of data that is to be programmed + * into the Program Once Field. + * @param lengthInBytes The length, given in bytes (not words or long-words) + * to be programmed. Must be word-aligned. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +status_t FLASH_ProgramOnce(flash_config_t *config, uint32_t index, uint32_t *src, uint32_t lengthInBytes); + +/*! + * @brief Programs flash with data at locations passed in through parameters via Program Section command + * + * This function programs the flash memory with desired data for a given + * flash area as determined by the start address and length. + * + * @param config Pointer to storage for the driver runtime state. + * @param start The start address of the desired flash memory to be programmed. Must be + * word-aligned. + * @param src Pointer to the source buffer of data that is to be programmed + * into the flash. + * @param lengthInBytes The length, given in bytes (not words or long-words) + * to be programmed. Must be word-aligned. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_AlignmentError Parameter is not aligned with specified baseline. + * @retval #kStatus_FLASH_AddressError Address is out of range. + * @retval #kStatus_FLASH_SetFlexramAsRamError Failed to set flexram as RAM + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + * @retval #kStatus_FLASH_RecoverFlexramAsEepromError Failed to recover flexram as eeprom + */ +#if defined(FSL_FEATURE_FLASH_HAS_PROGRAM_SECTION_CMD) && FSL_FEATURE_FLASH_HAS_PROGRAM_SECTION_CMD +status_t FLASH_ProgramSection(flash_config_t *config, uint32_t start, uint32_t *src, uint32_t lengthInBytes); +#endif + +/*! + * @brief Programs EEPROM with data at locations passed in through parameters + * + * This function programs the Emulated EEPROM with desired data for a given + * flash area as determined by the start address and length. + * + * @param config Pointer to storage for the driver runtime state. + * @param start The start address of the desired flash memory to be programmed. Must be + * word-aligned. + * @param src Pointer to the source buffer of data that is to be programmed + * into the flash. + * @param lengthInBytes The length, given in bytes (not words or long-words) + * to be programmed. Must be word-aligned. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_AddressError Address is out of range. + * @retval #kStatus_FLASH_SetFlexramAsEepromError Failed to set flexram as eeprom. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_RecoverFlexramAsRamError Failed to recover flexram as RAM + */ +#if FLASH_SSD_IS_FLEXNVM_ENABLED +status_t FLASH_EepromWrite(flash_config_t *config, uint32_t start, uint8_t *src, uint32_t lengthInBytes); +#endif + +/*@}*/ + +/*! + * @name Reading + * @{ + */ + +/*! + * @brief Read resource with data at locations passed in through parameters + * + * This function reads the flash memory with desired location for a given + * flash area as determined by the start address and length. + * + * @param config Pointer to storage for the driver runtime state. + * @param start The start address of the desired flash memory to be programmed. Must be + * word-aligned. + * @param dst Pointer to the destination buffer of data that is used to store + * data to be read. + * @param lengthInBytes The length, given in bytes (not words or long-words) + * to be read. Must be word-aligned. + * @param option The resource option which indicates which area should be read back. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_AlignmentError Parameter is not aligned with specified baseline. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +#if defined(FSL_FEATURE_FLASH_HAS_READ_RESOURCE_CMD) && FSL_FEATURE_FLASH_HAS_READ_RESOURCE_CMD +status_t FLASH_ReadResource( + flash_config_t *config, uint32_t start, uint32_t *dst, uint32_t lengthInBytes, flash_read_resource_option_t option); +#endif + +/*! + * @brief Read Program Once Field through parameters + * + * This function reads the read once feild with given index and length + * + * @param config Pointer to storage for the driver runtime state. + * @param index The index indicating the area of program once field to be read. + * @param dst Pointer to the destination buffer of data that is used to store + * data to be read. + * @param lengthInBytes The length, given in bytes (not words or long-words) + * to be programmed. Must be word-aligned. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +status_t FLASH_ReadOnce(flash_config_t *config, uint32_t index, uint32_t *dst, uint32_t lengthInBytes); + +/*@}*/ + +/*! + * @name Security + * @{ + */ + +/*! + * @brief Returns the security state via the pointer passed into the function + * + * This function retrieves the current Flash security status, including the + * security enabling state and the backdoor key enabling state. + * + * @param config Pointer to storage for the driver runtime state. + * @param state Pointer to the value returned for the current security status code: + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + */ +status_t FLASH_GetSecurityState(flash_config_t *config, flash_security_state_t *state); + +/*! + * @brief Allows user to bypass security with a backdoor key + * + * If the MCU is in secured state, this function will unsecure the MCU by + * comparing the provided backdoor key with ones in the Flash Configuration + * Field. + * + * @param config Pointer to storage for the driver runtime state. + * @param backdoorKey Pointer to the user buffer containing the backdoor key. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +status_t FLASH_SecurityBypass(flash_config_t *config, const uint8_t *backdoorKey); + +/*@}*/ + +/*! + * @name Verification + * @{ + */ + +/*! + * @brief Verifies erasure of entire flash at specified margin level + * + * This function will check to see if the flash have been erased to the + * specified read margin level. + * + * @param config Pointer to storage for the driver runtime state. + * @param margin Read margin choice + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +status_t FLASH_VerifyEraseAll(flash_config_t *config, flash_margin_value_t margin); + +/*! + * @brief Verifies erasure of desired flash area at specified margin level + * + * This function will check the appropriate number of flash sectors based on + * the desired start address and length to see if the flash have been erased + * to the specified read margin level. + * + * @param config Pointer to storage for the driver runtime state. + * @param start The start address of the desired flash memory to be verified. + * The start address does not need to be sector aligned but must be word-aligned. + * @param lengthInBytes The length, given in bytes (not words or long-words) + * to be verified. Must be word-aligned. + * @param margin Read margin choice + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_AlignmentError Parameter is not aligned with specified baseline. + * @retval #kStatus_FLASH_AddressError Address is out of range. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +status_t FLASH_VerifyErase(flash_config_t *config, uint32_t start, uint32_t lengthInBytes, flash_margin_value_t margin); + +/*! + * @brief Verifies programming of desired flash area at specified margin level + * + * This function verifies the data programed in the flash memory using the + * Flash Program Check Command and compares it with expected data for a given + * flash area as determined by the start address and length. + * + * @param config Pointer to storage for the driver runtime state. + * @param start The start address of the desired flash memory to be verified. Must be word-aligned. + * @param lengthInBytes The length, given in bytes (not words or long-words) + * to be verified. Must be word-aligned. + * @param expectedData Pointer to the expected data that is to be + * verified against. + * @param margin Read margin choice + * @param failedAddress Pointer to returned failing address. + * @param failedData Pointer to returned failing data. Some derivitives do + * not included failed data as part of the FCCOBx registers. In this + * case, zeros are returned upon failure. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_AlignmentError Parameter is not aligned with specified baseline. + * @retval #kStatus_FLASH_AddressError Address is out of range. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +status_t FLASH_VerifyProgram(flash_config_t *config, + uint32_t start, + uint32_t lengthInBytes, + const uint32_t *expectedData, + flash_margin_value_t margin, + uint32_t *failedAddress, + uint32_t *failedData); + +/*! + * @brief Verifies if the program flash executeonly segments have been erased to + * the specified read margin level + * + * @param config Pointer to storage for the driver runtime state. + * @param margin Read margin choice + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +status_t FLASH_VerifyEraseAllExecuteOnlySegments(flash_config_t *config, flash_margin_value_t margin); + +/*@}*/ + +/*! + * @name Protection + * @{ + */ + +/*! + * @brief Returns the protection state of desired flash area via the pointer passed into the function + * + * This function retrieves the current Flash protect status for a given + * flash area as determined by the start address and length. + * + * @param config Pointer to storage for the driver runtime state. + * @param start The start address of the desired flash memory to be checked. Must be word-aligned. + * @param lengthInBytes The length, given in bytes (not words or long-words) + * to be checked. Must be word-aligned. + * @param protection_state Pointer to the value returned for the current + * protection status code for the desired flash area. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_AlignmentError Parameter is not aligned with specified baseline. + * @retval #kStatus_FLASH_AddressError Address is out of range. + */ +status_t FLASH_IsProtected(flash_config_t *config, + uint32_t start, + uint32_t lengthInBytes, + flash_protection_state_t *protection_state); + +/*! + * @brief Returns the access state of desired flash area via the pointer passed into the function + * + * This function retrieves the current Flash access status for a given + * flash area as determined by the start address and length. + * + * @param config Pointer to storage for the driver runtime state. + * @param start The start address of the desired flash memory to be checked. Must be word-aligned. + * @param lengthInBytes The length, given in bytes (not words or long-words) + * to be checked. Must be word-aligned. + * @param access_state Pointer to the value returned for the current + * access status code for the desired flash area. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_AlignmentError Parameter is not aligned with specified baseline. + * @retval #kStatus_FLASH_AddressError Address is out of range. + */ +status_t FLASH_IsExecuteOnly(flash_config_t *config, + uint32_t start, + uint32_t lengthInBytes, + flash_execute_only_access_state_t *access_state); + +/*@}*/ + +/*! + * @name Properties + * @{ + */ + +/*! + * @brief Returns the desired flash property. + * + * @param config Pointer to storage for the driver runtime state. + * @param whichProperty The desired property from the list of properties in + * enum flash_property_tag_t + * @param value Pointer to the value returned for the desired flash property + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_UnknownProperty unknown property tag + */ +status_t FLASH_GetProperty(flash_config_t *config, flash_property_tag_t whichProperty, uint32_t *value); + +/*@}*/ + +/*! + * @name FlexRAM + * @{ + */ + +/*! + * @brief Set FlexRAM Function command + * + * @param config Pointer to storage for the driver runtime state. + * @param option The option used to set work mode of FlexRAM + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +#if defined(FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD) && FSL_FEATURE_FLASH_HAS_SET_FLEXRAM_FUNCTION_CMD +status_t FLASH_SetFlexramFunction(flash_config_t *config, flash_flexram_function_option_t option); +#endif + +/*@}*/ + +/*! + * @name Swap + * @{ + */ + +/*! + * @brief Configure Swap function or Check the swap state of Flash Module + * + * @param config Pointer to storage for the driver runtime state. + * @param address Address used to configure the flash swap function + * @param option The possible option used to configure Flash Swap function or check the flash swap status + * @param returnInfo Pointer to the data which is used to return the information of flash swap. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_AlignmentError Parameter is not aligned with specified baseline. + * @retval #kStatus_FLASH_SwapIndicatorAddressError Swap indicator address is invalid + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +#if defined(FSL_FEATURE_FLASH_HAS_SWAP_CONTROL_CMD) && FSL_FEATURE_FLASH_HAS_SWAP_CONTROL_CMD +status_t FLASH_SwapControl(flash_config_t *config, + uint32_t address, + flash_swap_control_option_t option, + flash_swap_state_config_t *returnInfo); +#endif + +/*! + * @brief Swap the lower half flash with the higher half flaock + * + * @param config Pointer to storage for the driver runtime state. + * @param address Address used to configure the flash swap function + * @param option The possible option used to configure Flash Swap function or check the flash swap status + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_AlignmentError Parameter is not aligned with specified baseline. + * @retval #kStatus_FLASH_SwapIndicatorAddressError Swap indicator address is invalid + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + * @retval #kStatus_FLASH_SwapSystemNotInUninitialized Swap system is not in uninitialzed state + */ +#if defined(FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP) && FSL_FEATURE_FLASH_HAS_PFLASH_BLOCK_SWAP +status_t FLASH_Swap(flash_config_t *config, uint32_t address, flash_swap_function_option_t option); +#endif + +/*! + * @name FlexNVM + * @{ + */ + +/*! + * @brief Prepares the FlexNVM block for use as data flash, EEPROM backup, or a combination of both and initializes the + * FlexRAM. + * + * @param config Pointer to storage for the driver runtime state. + * @param option The option used to set FlexRAM load behavior during reset. + * @param eepromDataSizeCode Determines the amount of FlexRAM used in each of the available EEPROM subsystems. + * @param flexnvmPartitionCode Specifies how to split the FlexNVM block between data flash memory and EEPROM backup + * memory supporting EEPROM functions. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_ExecuteInRamFunctionNotReady Execute-in-RAM function is not available. + * @retval #kStatus_FLASH_AccessError Invalid instruction codes and out-of bounds addresses. + * @retval #kStatus_FLASH_ProtectionViolation The program/erase operation is requested to execute on protected areas. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +#if defined(FSL_FEATURE_FLASH_HAS_PROGRAM_PARTITION_CMD) && FSL_FEATURE_FLASH_HAS_PROGRAM_PARTITION_CMD +status_t FLASH_ProgramPartition(flash_config_t *config, + flash_partition_flexram_load_option_t option, + uint32_t eepromDataSizeCode, + uint32_t flexnvmPartitionCode); +#endif + +/*@}*/ + +/*! +* @name Flash Protection Utilities +* @{ +*/ + +/*! + * @brief Set PFLASH Protection to the intended protection status. + * + * @param config Pointer to storage for the driver runtime state. + * @param protectStatus The expected protect status user wants to set to PFlash protection register. Each bit is + * corresponding to protection of 1/32 of the total PFlash. The least significant bit is corresponding to the lowest + * address area of P-Flash. The most significant bit is corresponding to the highest address area of PFlash. There are + * two possible cases as shown below: + * 0: this area is protected. + * 1: this area is unprotected. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +status_t FLASH_PflashSetProtection(flash_config_t *config, uint32_t protectStatus); + +/*! + * @brief Get PFLASH Protection Status. + * + * @param config Pointer to storage for the driver runtime state. + * @param protectStatus Protect status returned by PFlash IP. Each bit is corresponding to protection of 1/32 of the + * total PFlash. The least significant bit is corresponding to the lowest address area of PFlash. The most significant + * bit is corresponding to the highest address area of PFlash. Thee are two possible cases as below: + * 0: this area is protected. + * 1: this area is unprotected. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + */ +status_t FLASH_PflashGetProtection(flash_config_t *config, uint32_t *protectStatus); + +/*! + * @brief Set DFLASH Protection to the intended protection status. + * + * @param config Pointer to storage for the driver runtime state. + * @param protectStatus The expected protect status user wants to set to DFlash protection register. Each bit is + * corresponding to protection of 1/8 of the total DFlash. The least significant bit is corresponding to the lowest + * address area of DFlash. The most significant bit is corresponding to the highest address area of DFlash. There are + * two possible cases as shown below: + * 0: this area is protected. + * 1: this area is unprotected. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_CommandNotSupported Flash API is not supported + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +#if FLASH_SSD_IS_FLEXNVM_ENABLED +status_t FLASH_DflashSetProtection(flash_config_t *config, uint8_t protectStatus); +#endif + +/*! + * @brief Get DFLASH Protection Status. + * + * @param config Pointer to storage for the driver runtime state. + * @param protectStatus DFlash Protect status returned by PFlash IP. Each bit is corresponding to protection of 1/8 of + * the total DFlash. The least significant bit is corresponding to the lowest address area of DFlash. The most + * significant bit is corresponding to the highest address area of DFlash and so on. There are two possible cases as + * below: + * 0: this area is protected. + * 1: this area is unprotected. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_CommandNotSupported Flash API is not supported + */ +#if FLASH_SSD_IS_FLEXNVM_ENABLED +status_t FLASH_DflashGetProtection(flash_config_t *config, uint8_t *protectStatus); +#endif + +/*! + * @brief Set EEPROM Protection to the intended protection status. + * + * @param config Pointer to storage for the driver runtime state. + * @param protectStatus The expected protect status user wants to set to EEPROM protection register. Each bit is + * corresponding to protection of 1/8 of the total EEPROM. The least significant bit is corresponding to the lowest + * address area of EEPROM. The most significant bit is corresponding to the highest address area of EEPROM, and so on. + * There are two possible cases as shown below: + * 0: this area is protected. + * 1: this area is unprotected. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_CommandNotSupported Flash API is not supported + * @retval #kStatus_FLASH_CommandFailure Run-time error during command execution. + */ +#if FLASH_SSD_IS_FLEXNVM_ENABLED +status_t FLASH_EepromSetProtection(flash_config_t *config, uint8_t protectStatus); +#endif + +/*! + * @brief Get DFLASH Protection Status. + * + * @param config Pointer to storage for the driver runtime state. + * @param protectStatus DFlash Protect status returned by PFlash IP. Each bit is corresponding to protection of 1/8 of + * the total EEPROM. The least significant bit is corresponding to the lowest address area of EEPROM. The most + * significant bit is corresponding to the highest address area of EEPROM. There are two possible cases as below: + * 0: this area is protected. + * 1: this area is unprotected. + * + * @retval #kStatus_FLASH_Success API was executed successfully. + * @retval #kStatus_FLASH_InvalidArgument Invalid argument is provided. + * @retval #kStatus_FLASH_CommandNotSupported Flash API is not supported. + */ +#if FLASH_SSD_IS_FLEXNVM_ENABLED +status_t FLASH_EepromGetProtection(flash_config_t *config, uint8_t *protectStatus); +#endif + +/*@}*/ + +#if defined(__cplusplus) +} +#endif + +/*! @}*/ + +#endif /* _FSL_FLASH_H_ */ diff --git a/drivers/fsl_flexbus.c b/drivers/fsl_flexbus.c new file mode 100644 index 0000000..4e29285 --- /dev/null +++ b/drivers/fsl_flexbus.c @@ -0,0 +1,196 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_flexbus.h" + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/*! + * @brief Gets the instance from the base address + * + * @param base FLEXBUS peripheral base address + * + * @return The FLEXBUS instance + */ +static uint32_t FLEXBUS_GetInstance(FB_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ + +/*! @brief Pointers to FLEXBUS bases for each instance. */ +static FB_Type *const s_flexbusBases[] = FB_BASE_PTRS; + +/*! @brief Pointers to FLEXBUS clocks for each instance. */ +static const clock_ip_name_t s_flexbusClocks[] = FLEXBUS_CLOCKS; + +/******************************************************************************* + * Code + ******************************************************************************/ + +static uint32_t FLEXBUS_GetInstance(FB_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_FB_COUNT; instance++) + { + if (s_flexbusBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_FB_COUNT); + + return instance; +} + +void FLEXBUS_Init(FB_Type *base, const flexbus_config_t *config) +{ + assert(config != NULL); + assert(config->chip < FB_CSAR_COUNT); + assert(config->waitStates <= 0x3FU); + + uint32_t chip = 0; + uint32_t reg_value = 0; + + /* Ungate clock for FLEXBUS */ + CLOCK_EnableClock(s_flexbusClocks[FLEXBUS_GetInstance(base)]); + + /* Reset all the register to default state */ + for (chip = 0; chip < FB_CSAR_COUNT; chip++) + { + /* Reset CSMR register, all chips not valid (disabled) */ + base->CS[chip].CSMR = 0x0000U; + /* Set default base address */ + base->CS[chip].CSAR &= (~FB_CSAR_BA_MASK); + /* Reset FB_CSCRx register */ + base->CS[chip].CSCR = 0x0000U; + } + /* Set FB_CSPMCR register */ + /* FlexBus signal group 1 multiplex control */ + reg_value |= kFLEXBUS_MultiplexGroup1_FB_ALE << FB_CSPMCR_GROUP1_SHIFT; + /* FlexBus signal group 2 multiplex control */ + reg_value |= kFLEXBUS_MultiplexGroup2_FB_CS4 << FB_CSPMCR_GROUP2_SHIFT; + /* FlexBus signal group 3 multiplex control */ + reg_value |= kFLEXBUS_MultiplexGroup3_FB_CS5 << FB_CSPMCR_GROUP3_SHIFT; + /* FlexBus signal group 4 multiplex control */ + reg_value |= kFLEXBUS_MultiplexGroup4_FB_TBST << FB_CSPMCR_GROUP4_SHIFT; + /* FlexBus signal group 5 multiplex control */ + reg_value |= kFLEXBUS_MultiplexGroup5_FB_TA << FB_CSPMCR_GROUP5_SHIFT; + /* Write to CSPMCR register */ + base->CSPMCR = reg_value; + + /* Update chip value */ + chip = config->chip; + + /* Base address */ + reg_value = config->chipBaseAddress; + /* Write to CSAR register */ + base->CS[chip].CSAR = reg_value; + /* Chip-select validation */ + reg_value = 0x1U << FB_CSMR_V_SHIFT; + /* Write protect */ + reg_value |= (uint32_t)(config->writeProtect) << FB_CSMR_WP_SHIFT; + /* Base address mask */ + reg_value |= config->chipBaseAddressMask << FB_CSMR_BAM_SHIFT; + /* Write to CSMR register */ + base->CS[chip].CSMR = reg_value; + /* Burst write */ + reg_value = (uint32_t)(config->burstWrite) << FB_CSCR_BSTW_SHIFT; + /* Burst read */ + reg_value |= (uint32_t)(config->burstRead) << FB_CSCR_BSTR_SHIFT; + /* Byte-enable mode */ + reg_value |= (uint32_t)(config->byteEnableMode) << FB_CSCR_BEM_SHIFT; + /* Port size */ + reg_value |= (uint32_t)config->portSize << FB_CSCR_PS_SHIFT; + /* The internal transfer acknowledge for accesses */ + reg_value |= (uint32_t)(config->autoAcknowledge) << FB_CSCR_AA_SHIFT; + /* Byte-Lane shift */ + reg_value |= (uint32_t)config->byteLaneShift << FB_CSCR_BLS_SHIFT; + /* The number of wait states */ + reg_value |= (uint32_t)config->waitStates << FB_CSCR_WS_SHIFT; + /* Write address hold or deselect */ + reg_value |= (uint32_t)config->writeAddressHold << FB_CSCR_WRAH_SHIFT; + /* Read address hold or deselect */ + reg_value |= (uint32_t)config->readAddressHold << FB_CSCR_RDAH_SHIFT; + /* Address setup */ + reg_value |= (uint32_t)config->addressSetup << FB_CSCR_ASET_SHIFT; + /* Extended transfer start/extended address latch */ + reg_value |= (uint32_t)(config->extendTransferAddress) << FB_CSCR_EXTS_SHIFT; + /* Secondary wait state */ + reg_value |= (uint32_t)(config->secondaryWaitStates) << FB_CSCR_SWSEN_SHIFT; + /* Write to CSCR register */ + base->CS[chip].CSCR = reg_value; + /* FlexBus signal group 1 multiplex control */ + reg_value = (uint32_t)config->group1MultiplexControl << FB_CSPMCR_GROUP1_SHIFT; + /* FlexBus signal group 2 multiplex control */ + reg_value |= (uint32_t)config->group2MultiplexControl << FB_CSPMCR_GROUP2_SHIFT; + /* FlexBus signal group 3 multiplex control */ + reg_value |= (uint32_t)config->group3MultiplexControl << FB_CSPMCR_GROUP3_SHIFT; + /* FlexBus signal group 4 multiplex control */ + reg_value |= (uint32_t)config->group4MultiplexControl << FB_CSPMCR_GROUP4_SHIFT; + /* FlexBus signal group 5 multiplex control */ + reg_value |= (uint32_t)config->group5MultiplexControl << FB_CSPMCR_GROUP5_SHIFT; + /* Write to CSPMCR register */ + base->CSPMCR = reg_value; +} + +void FLEXBUS_Deinit(FB_Type *base) +{ + /* Gate clock for FLEXBUS */ + CLOCK_DisableClock(s_flexbusClocks[FLEXBUS_GetInstance(base)]); +} + +void FLEXBUS_GetDefaultConfig(flexbus_config_t *config) +{ + config->chip = 0; /* Chip 0 FlexBus for validation */ + config->writeProtect = 0; /* Write accesses are allowed */ + config->burstWrite = 0; /* Burst-Write disable */ + config->burstRead = 0; /* Burst-Read disable */ + config->byteEnableMode = 0; /* Byte-Enable mode is asserted for data write only */ + config->autoAcknowledge = true; /* Auto-Acknowledge enable */ + config->extendTransferAddress = 0; /* Extend transfer start/extend address latch disable */ + config->secondaryWaitStates = 0; /* Secondary wait state disable */ + config->byteLaneShift = kFLEXBUS_NotShifted; /* Byte-Lane shift disable */ + config->writeAddressHold = kFLEXBUS_Hold1Cycle; /* Write address hold 1 cycles */ + config->readAddressHold = kFLEXBUS_Hold1Or0Cycles; /* Read address hold 0 cycles */ + config->addressSetup = + kFLEXBUS_FirstRisingEdge; /* Assert ~FB_CSn on the first rising clock edge after the address is asserted */ + config->portSize = kFLEXBUS_1Byte; /* 1 byte port size of transfer */ + config->group1MultiplexControl = kFLEXBUS_MultiplexGroup1_FB_ALE; /* FB_ALE */ + config->group2MultiplexControl = kFLEXBUS_MultiplexGroup2_FB_CS4; /* FB_CS4 */ + config->group3MultiplexControl = kFLEXBUS_MultiplexGroup3_FB_CS5; /* FB_CS5 */ + config->group4MultiplexControl = kFLEXBUS_MultiplexGroup4_FB_TBST; /* FB_TBST */ + config->group5MultiplexControl = kFLEXBUS_MultiplexGroup5_FB_TA; /* FB_TA */ +} diff --git a/drivers/fsl_flexbus.h b/drivers/fsl_flexbus.h new file mode 100644 index 0000000..0f2886d --- /dev/null +++ b/drivers/fsl_flexbus.h @@ -0,0 +1,265 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_FLEXBUS_H_ +#define _FSL_FLEXBUS_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup flexbus + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +#define FSL_FLEXBUS_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) /*!< Version 2.0.0. */ +/*@}*/ + +/*! + * @brief Defines port size for FlexBus peripheral. + */ +typedef enum _flexbus_port_size +{ + kFLEXBUS_4Bytes = 0x00U, /*!< 32-bit port size */ + kFLEXBUS_1Byte = 0x01U, /*!< 8-bit port size */ + kFLEXBUS_2Bytes = 0x02U /*!< 16-bit port size */ +} flexbus_port_size_t; + +/*! + * @brief Defines number of cycles to hold address and attributes for FlexBus peripheral. + */ +typedef enum _flexbus_write_address_hold +{ + kFLEXBUS_Hold1Cycle = 0x00U, /*!< Hold address and attributes one cycles after FB_CSn negates on writes */ + kFLEXBUS_Hold2Cycles = 0x01U, /*!< Hold address and attributes two cycles after FB_CSn negates on writes */ + kFLEXBUS_Hold3Cycles = 0x02U, /*!< Hold address and attributes three cycles after FB_CSn negates on writes */ + kFLEXBUS_Hold4Cycles = 0x03U /*!< Hold address and attributes four cycles after FB_CSn negates on writes */ +} flexbus_write_address_hold_t; + +/*! + * @brief Defines number of cycles to hold address and attributes for FlexBus peripheral. + */ +typedef enum _flexbus_read_address_hold +{ + kFLEXBUS_Hold1Or0Cycles = 0x00U, /*!< Hold address and attributes 1 or 0 cycles on reads */ + kFLEXBUS_Hold2Or1Cycles = 0x01U, /*!< Hold address and attributes 2 or 1 cycles on reads */ + kFLEXBUS_Hold3Or2Cycle = 0x02U, /*!< Hold address and attributes 3 or 2 cycles on reads */ + kFLEXBUS_Hold4Or3Cycle = 0x03U /*!< Hold address and attributes 4 or 3 cycles on reads */ +} flexbus_read_address_hold_t; + +/*! + * @brief Address setup for FlexBus peripheral. + */ +typedef enum _flexbus_address_setup +{ + kFLEXBUS_FirstRisingEdge = 0x00U, /*!< Assert FB_CSn on first rising clock edge after address is asserted */ + kFLEXBUS_SecondRisingEdge = 0x01U, /*!< Assert FB_CSn on second rising clock edge after address is asserted */ + kFLEXBUS_ThirdRisingEdge = 0x02U, /*!< Assert FB_CSn on third rising clock edge after address is asserted */ + kFLEXBUS_FourthRisingEdge = 0x03U, /*!< Assert FB_CSn on fourth rising clock edge after address is asserted */ +} flexbus_address_setup_t; + +/*! + * @brief Defines byte-lane shift for FlexBus peripheral. + */ +typedef enum _flexbus_bytelane_shift +{ + kFLEXBUS_NotShifted = 0x00U, /*!< Not shifted. Data is left-justified on FB_AD */ + kFLEXBUS_Shifted = 0x01U, /*!< Shifted. Data is right justified on FB_AD */ +} flexbus_bytelane_shift_t; + +/*! + * @brief Defines multiplex group1 valid signals. + */ +typedef enum _flexbus_multiplex_group1_signal +{ + kFLEXBUS_MultiplexGroup1_FB_ALE = 0x00U, /*!< FB_ALE */ + kFLEXBUS_MultiplexGroup1_FB_CS1 = 0x01U, /*!< FB_CS1 */ + kFLEXBUS_MultiplexGroup1_FB_TS = 0x02U, /*!< FB_TS */ +} flexbus_multiplex_group1_t; + +/*! + * @brief Defines multiplex group2 valid signals. + */ +typedef enum _flexbus_multiplex_group2_signal +{ + kFLEXBUS_MultiplexGroup2_FB_CS4 = 0x00U, /*!< FB_CS4 */ + kFLEXBUS_MultiplexGroup2_FB_TSIZ0 = 0x01U, /*!< FB_TSIZ0 */ + kFLEXBUS_MultiplexGroup2_FB_BE_31_24 = 0x02U, /*!< FB_BE_31_24 */ +} flexbus_multiplex_group2_t; + +/*! + * @brief Defines multiplex group3 valid signals. + */ +typedef enum _flexbus_multiplex_group3_signal +{ + kFLEXBUS_MultiplexGroup3_FB_CS5 = 0x00U, /*!< FB_CS5 */ + kFLEXBUS_MultiplexGroup3_FB_TSIZ1 = 0x01U, /*!< FB_TSIZ1 */ + kFLEXBUS_MultiplexGroup3_FB_BE_23_16 = 0x02U, /*!< FB_BE_23_16 */ +} flexbus_multiplex_group3_t; + +/*! + * @brief Defines multiplex group4 valid signals. + */ +typedef enum _flexbus_multiplex_group4_signal +{ + kFLEXBUS_MultiplexGroup4_FB_TBST = 0x00U, /*!< FB_TBST */ + kFLEXBUS_MultiplexGroup4_FB_CS2 = 0x01U, /*!< FB_CS2 */ + kFLEXBUS_MultiplexGroup4_FB_BE_15_8 = 0x02U, /*!< FB_BE_15_8 */ +} flexbus_multiplex_group4_t; + +/*! + * @brief Defines multiplex group5 valid signals. + */ +typedef enum _flexbus_multiplex_group5_signal +{ + kFLEXBUS_MultiplexGroup5_FB_TA = 0x00U, /*!< FB_TA */ + kFLEXBUS_MultiplexGroup5_FB_CS3 = 0x01U, /*!< FB_CS3 */ + kFLEXBUS_MultiplexGroup5_FB_BE_7_0 = 0x02U, /*!< FB_BE_7_0 */ +} flexbus_multiplex_group5_t; + +/*! + * @brief Configuration structure that the user needs to set. + */ +typedef struct _flexbus_config +{ + uint8_t chip; /*!< Chip FlexBus for validation */ + uint8_t waitStates; /*!< Value of wait states */ + uint32_t chipBaseAddress; /*!< Chip base address for using FlexBus */ + uint32_t chipBaseAddressMask; /*!< Chip base address mask */ + bool writeProtect; /*!< Write protected */ + bool burstWrite; /*!< Burst-Write enable */ + bool burstRead; /*!< Burst-Read enable */ + bool byteEnableMode; /*!< Byte-enable mode support */ + bool autoAcknowledge; /*!< Auto acknowledge setting */ + bool extendTransferAddress; /*!< Extend transfer start/extend address latch enable */ + bool secondaryWaitStates; /*!< Secondary wait states number */ + flexbus_port_size_t portSize; /*!< Port size of transfer */ + flexbus_bytelane_shift_t byteLaneShift; /*!< Byte-lane shift enable */ + flexbus_write_address_hold_t writeAddressHold; /*!< Write address hold or deselect option */ + flexbus_read_address_hold_t readAddressHold; /*!< Read address hold or deselect option */ + flexbus_address_setup_t addressSetup; /*!< Address setup setting */ + flexbus_multiplex_group1_t group1MultiplexControl; /*!< FlexBus Signal Group 1 Multiplex control */ + flexbus_multiplex_group2_t group2MultiplexControl; /*!< FlexBus Signal Group 2 Multiplex control */ + flexbus_multiplex_group3_t group3MultiplexControl; /*!< FlexBus Signal Group 3 Multiplex control */ + flexbus_multiplex_group4_t group4MultiplexControl; /*!< FlexBus Signal Group 4 Multiplex control */ + flexbus_multiplex_group5_t group5MultiplexControl; /*!< FlexBus Signal Group 5 Multiplex control */ +} flexbus_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /* __cplusplus */ + +/*! + * @name FlexBus functional operation + * @{ + */ + +/*! + * @brief Initializes and configures the FlexBus module. + * + * This function enables the clock gate for FlexBus module. + * Only chip 0 is validated and set to known values. Other chips are disabled. + * NOTE: In this function, certain parameters, depending on external memories, must + * be set before using FLEXBUS_Init() function. + * This example shows how to set up the uart_state_t and the + * flexbus_config_t parameters and how to call the FLEXBUS_Init function by passing + * in these parameters: + @code + flexbus_config_t flexbusConfig; + FLEXBUS_GetDefaultConfig(&flexbusConfig); + flexbusConfig.waitStates = 2U; + flexbusConfig.chipBaseAddress = 0x60000000U; + flexbusConfig.chipBaseAddressMask = 7U; + FLEXBUS_Init(FB, &flexbusConfig); + @endcode + * + * @param base FlexBus peripheral address. + * @param config Pointer to the configure structure +*/ +void FLEXBUS_Init(FB_Type *base, const flexbus_config_t *config); + +/*! + * @brief De-initializes a FlexBus instance. + * + * This function disables the clock gate of the FlexBus module clock. + * + * @param base FlexBus peripheral address. + */ +void FLEXBUS_Deinit(FB_Type *base); + +/*! + * @brief Initializes the FlexBus configuration structure. + * + * This function initializes the FlexBus configuration structure to default value. The default + * values are: + @code + fbConfig->chip = 0; + fbConfig->writeProtect = 0; + fbConfig->burstWrite = 0; + fbConfig->burstRead = 0; + fbConfig->byteEnableMode = 0; + fbConfig->autoAcknowledge = true; + fbConfig->extendTransferAddress = 0; + fbConfig->secondaryWaitStates = 0; + fbConfig->byteLaneShift = kFLEXBUS_NotShifted; + fbConfig->writeAddressHold = kFLEXBUS_Hold1Cycle; + fbConfig->readAddressHold = kFLEXBUS_Hold1Or0Cycles; + fbConfig->addressSetup = kFLEXBUS_FirstRisingEdge; + fbConfig->portSize = kFLEXBUS_1Byte; + fbConfig->group1MultiplexControl = kFLEXBUS_MultiplexGroup1_FB_ALE; + fbConfig->group2MultiplexControl = kFLEXBUS_MultiplexGroup2_FB_CS4 ; + fbConfig->group3MultiplexControl = kFLEXBUS_MultiplexGroup3_FB_CS5; + fbConfig->group4MultiplexControl = kFLEXBUS_MultiplexGroup4_FB_TBST; + fbConfig->group5MultiplexControl = kFLEXBUS_MultiplexGroup5_FB_TA; + @endcode + * @param config Pointer to the initialization structure. + * @see FLEXBUS_Init + */ +void FLEXBUS_GetDefaultConfig(flexbus_config_t *config); + +/*! @}*/ + +#if defined(__cplusplus) +} +#endif /* __cplusplus */ + +/*! @}*/ + +#endif /* _FSL_FLEXBUS_H_ */ diff --git a/drivers/fsl_flexcan.c b/drivers/fsl_flexcan.c new file mode 100644 index 0000000..395def5 --- /dev/null +++ b/drivers/fsl_flexcan.c @@ -0,0 +1,1345 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_flexcan.h" + +/******************************************************************************* + * Definitons + ******************************************************************************/ + +#define FLEXCAN_TIME_QUANTA_NUM (10) + +/*! @brief FlexCAN Internal State. */ +enum _flexcan_state +{ + kFLEXCAN_StateIdle = 0x0, /*!< MB/RxFIFO idle.*/ + kFLEXCAN_StateRxData = 0x1, /*!< MB receiving.*/ + kFLEXCAN_StateRxRemote = 0x2, /*!< MB receiving remote reply.*/ + kFLEXCAN_StateTxData = 0x3, /*!< MB transmitting.*/ + kFLEXCAN_StateTxRemote = 0x4, /*!< MB transmitting remote request.*/ + kFLEXCAN_StateRxFifo = 0x5, /*!< RxFIFO receiving.*/ +}; + +/*! @brief FlexCAN message buffer CODE for Rx buffers. */ +enum _flexcan_mb_code_rx +{ + kFLEXCAN_RxMbInactive = 0x0, /*!< MB is not active.*/ + kFLEXCAN_RxMbFull = 0x2, /*!< MB is full.*/ + kFLEXCAN_RxMbEmpty = 0x4, /*!< MB is active and empty.*/ + kFLEXCAN_RxMbOverrun = 0x6, /*!< MB is overwritten into a full buffer.*/ + kFLEXCAN_RxMbBusy = 0x8, /*!< FlexCAN is updating the contents of the MB.*/ + /*! The CPU must not access the MB.*/ + kFLEXCAN_RxMbRanswer = 0xA, /*!< A frame was configured to recognize a Remote Request Frame */ + /*! and transmit a Response Frame in return.*/ + kFLEXCAN_RxMbNotUsed = 0xF, /*!< Not used.*/ +}; + +/*! @brief FlexCAN message buffer CODE FOR Tx buffers. */ +enum _flexcan_mb_code_tx +{ + kFLEXCAN_TxMbInactive = 0x8, /*!< MB is not active.*/ + kFLEXCAN_TxMbAbort = 0x9, /*!< MB is aborted.*/ + kFLEXCAN_TxMbDataOrRemote = 0xC, /*!< MB is a TX Data Frame(when MB RTR = 0) or */ + /*!< MB is a TX Remote Request Frame (when MB RTR = 1).*/ + kFLEXCAN_TxMbTanswer = 0xE, /*!< MB is a TX Response Request Frame from */ + /*! an incoming Remote Request Frame.*/ + kFLEXCAN_TxMbNotUsed = 0xF, /*!< Not used.*/ +}; + +/* Typedef for interrupt handler. */ +typedef void (*flexcan_isr_t)(CAN_Type *base, flexcan_handle_t *handle); + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/*! + * @brief Get the FlexCAN instance from peripheral base address. + * + * @param base FlexCAN peripheral base address. + * @return FlexCAN instance. + */ +uint32_t FLEXCAN_GetInstance(CAN_Type *base); + +/*! + * @brief Enter FlexCAN Freeze Mode. + * + * This function makes the FlexCAN work under Freeze Mode. + * + * @param base FlexCAN peripheral base address. + */ +static void FLEXCAN_EnterFreezeMode(CAN_Type *base); + +/*! + * @brief Exit FlexCAN Freeze Mode. + * + * This function makes the FlexCAN leave Freeze Mode. + * + * @param base FlexCAN peripheral base address. + */ +static void FLEXCAN_ExitFreezeMode(CAN_Type *base); + +#if !defined(NDEBUG) +/*! + * @brief Check if Message Buffer is occupied by Rx FIFO. + * + * This function check if Message Buffer is occupied by Rx FIFO. + * + * @param base FlexCAN peripheral base address. + * @param mbIdx The FlexCAN Message Buffer index. + */ +static bool FLEXCAN_IsMbOccupied(CAN_Type *base, uint8_t mbIdx); +#endif + +#if (defined(FSL_FEATURE_FLEXCAN_HAS_ERRATA_5641) && FSL_FEATURE_FLEXCAN_HAS_ERRATA_5641) +/*! + * @brief Get the first valid Message buffer ID of give FlexCAN instance. + * + * This function is a helper function for Errata 5641 workaround. + * + * @param base FlexCAN peripheral base address. + * @return The first valid Message Buffer Number. + */ +static uint32_t FLEXCAN_GetFirstValidMb(CAN_Type *base); +#endif + +/*! + * @brief Check if Message Buffer interrupt is enabled. + * + * This function check if Message Buffer interrupt is enabled. + * + * @param base FlexCAN peripheral base address. + * @param mbIdx The FlexCAN Message Buffer index. + */ +static bool FLEXCAN_IsMbIntEnabled(CAN_Type *base, uint8_t mbIdx); + +/*! + * @brief Reset the FlexCAN Instance. + * + * Restores the FlexCAN module to reset state, notice that this function + * will set all the registers to reset state so the FlexCAN module can not work + * after calling this API. + * + * @param base FlexCAN peripheral base address. +*/ +static void FLEXCAN_Reset(CAN_Type *base); + +/*! + * @brief Set Baud Rate of FlexCAN. + * + * This function set the baud rate of FlexCAN. + * + * @param base FlexCAN peripheral base address. + * @param sourceClock_Hz Source Clock in Hz. + * @param baudRate_Bps Baud Rate in Bps. + */ +static void FLEXCAN_SetBaudRate(CAN_Type *base, uint32_t sourceClock_Hz, uint32_t baudRate_Bps); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/* Array of FlexCAN handle. */ +static flexcan_handle_t *s_flexcanHandle[FSL_FEATURE_SOC_FLEXCAN_COUNT]; + +/* Array of FlexCAN peripheral base address. */ +static CAN_Type *const s_flexcanBases[] = CAN_BASE_PTRS; + +/* Array of FlexCAN IRQ number. */ +static const IRQn_Type s_flexcanRxWarningIRQ[] = CAN_Rx_Warning_IRQS; +static const IRQn_Type s_flexcanTxWarningIRQ[] = CAN_Tx_Warning_IRQS; +static const IRQn_Type s_flexcanWakeUpIRQ[] = CAN_Wake_Up_IRQS; +static const IRQn_Type s_flexcanErrorIRQ[] = CAN_Error_IRQS; +static const IRQn_Type s_flexcanBusOffIRQ[] = CAN_Bus_Off_IRQS; +static const IRQn_Type s_flexcanMbIRQ[] = CAN_ORed_Message_buffer_IRQS; + +/* Array of FlexCAN clock name. */ +static const clock_ip_name_t s_flexcanClock[] = FLEXCAN_CLOCKS; + +/* FlexCAN ISR for transactional APIs. */ +static flexcan_isr_t s_flexcanIsr; + +/******************************************************************************* + * Code + ******************************************************************************/ + +uint32_t FLEXCAN_GetInstance(CAN_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_FLEXCAN_COUNT; instance++) + { + if (s_flexcanBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_FLEXCAN_COUNT); + + return instance; +} + +static void FLEXCAN_EnterFreezeMode(CAN_Type *base) +{ + /* Set Freeze, Halt bits. */ + base->MCR |= CAN_MCR_HALT_MASK; + + /* Wait until the FlexCAN Module enter freeze mode. */ + while (!(base->MCR & CAN_MCR_FRZACK_MASK)) + { + } +} + +static void FLEXCAN_ExitFreezeMode(CAN_Type *base) +{ + /* Clear Freeze, Halt bits. */ + base->MCR &= ~CAN_MCR_HALT_MASK; + + /* Wait until the FlexCAN Module exit freeze mode. */ + while (base->MCR & CAN_MCR_FRZACK_MASK) + { + } +} + +#if !defined(NDEBUG) +static bool FLEXCAN_IsMbOccupied(CAN_Type *base, uint8_t mbIdx) +{ + uint8_t lastOccupiedMb; + + /* Is Rx FIFO enabled? */ + if (base->MCR & CAN_MCR_RFEN_MASK) + { + /* Get RFFN value. */ + lastOccupiedMb = ((base->CTRL2 & CAN_CTRL2_RFFN_MASK) >> CAN_CTRL2_RFFN_SHIFT); + /* Calculate the number of last Message Buffer occupied by Rx FIFO. */ + lastOccupiedMb = ((lastOccupiedMb + 1) * 2) + 5; + +#if (defined(FSL_FEATURE_FLEXCAN_HAS_ERRATA_5641) && FSL_FEATURE_FLEXCAN_HAS_ERRATA_5641) + if (mbIdx <= (lastOccupiedMb + 1)) +#else + if (mbIdx <= lastOccupiedMb) +#endif + { + return true; + } + else + { + return false; + } + } + else + { +#if (defined(FSL_FEATURE_FLEXCAN_HAS_ERRATA_5641) && FSL_FEATURE_FLEXCAN_HAS_ERRATA_5641) + if (0 == mbIdx) + { + return true; + } + else + { + return false; + } +#else + return false; +#endif + } +} +#endif + +#if (defined(FSL_FEATURE_FLEXCAN_HAS_ERRATA_5641) && FSL_FEATURE_FLEXCAN_HAS_ERRATA_5641) +static uint32_t FLEXCAN_GetFirstValidMb(CAN_Type *base) +{ + uint32_t firstValidMbNum; + + if (base->MCR & CAN_MCR_RFEN_MASK) + { + firstValidMbNum = ((base->CTRL2 & CAN_CTRL2_RFFN_MASK) >> CAN_CTRL2_RFFN_SHIFT); + firstValidMbNum = ((firstValidMbNum + 1) * 2) + 6; + } + else + { + firstValidMbNum = 0; + } + + return firstValidMbNum; +} +#endif + +static bool FLEXCAN_IsMbIntEnabled(CAN_Type *base, uint8_t mbIdx) +{ + /* Assertion. */ + assert(mbIdx < FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(base)); + +#if (FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER > 0) + if (mbIdx < 32) + { +#endif + if (base->IMASK1 & ((uint32_t)(1 << mbIdx))) + { + return true; + } + else + { + return false; + } +#if (FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER > 0) + } + else + { + if (base->IMASK2 & ((uint32_t)(1 << (mbIdx - 32)))) + return true; + else + return false; + } +#endif +} + +static void FLEXCAN_Reset(CAN_Type *base) +{ + /* The module must should be first exit from low power + * mode, and then soft reset can be applied. + */ + assert(!(base->MCR & CAN_MCR_MDIS_MASK)); + + uint8_t i; + +#if (FSL_FEATURE_FLEXCAN_HAS_DOZE_MODE_SUPPORT != 0) + /* De-assert DOZE Enable Bit. */ + base->MCR &= ~CAN_MCR_DOZE_MASK; +#endif + + /* Wait until FlexCAN exit from any Low Power Mode. */ + while (base->MCR & CAN_MCR_LPMACK_MASK) + { + } + + /* Assert Soft Reset Signal. */ + base->MCR |= CAN_MCR_SOFTRST_MASK; + /* Wait until FlexCAN reset completes. */ + while (base->MCR & CAN_MCR_SOFTRST_MASK) + { + } + +/* Reset MCR rigister. */ +#if (defined(FSL_FEATURE_FLEXCAN_HAS_GLITCH_FILTER) && FSL_FEATURE_FLEXCAN_HAS_GLITCH_FILTER) + base->MCR |= CAN_MCR_WRNEN_MASK | CAN_MCR_WAKSRC_MASK | + CAN_MCR_MAXMB(FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(base) - 1); +#else + base->MCR |= CAN_MCR_WRNEN_MASK | CAN_MCR_MAXMB(FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(base) - 1); +#endif + + /* Reset CTRL1 and CTRL2 rigister. */ + base->CTRL1 = CAN_CTRL1_SMP_MASK; + base->CTRL2 = CAN_CTRL2_TASD(0x16) | CAN_CTRL2_RRS_MASK | CAN_CTRL2_EACEN_MASK; + + /* Clean all individual Rx Mask of Message Buffers. */ + for (i = 0; i < FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(base); i++) + { + base->RXIMR[i] = 0x3FFFFFFF; + } + + /* Clean Global Mask of Message Buffers. */ + base->RXMGMASK = 0x3FFFFFFF; + /* Clean Global Mask of Message Buffer 14. */ + base->RX14MASK = 0x3FFFFFFF; + /* Clean Global Mask of Message Buffer 15. */ + base->RX15MASK = 0x3FFFFFFF; + /* Clean Global Mask of Rx FIFO. */ + base->RXFGMASK = 0x3FFFFFFF; + + /* Clean all Message Buffer CS fields. */ + for (i = 0; i < FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(base); i++) + { + base->MB[i].CS = 0x0; + } +} + +static void FLEXCAN_SetBaudRate(CAN_Type *base, uint32_t sourceClock_Hz, uint32_t baudRate_Bps) +{ + flexcan_timing_config_t timingConfig; + uint32_t priDiv = baudRate_Bps * FLEXCAN_TIME_QUANTA_NUM; + + /* Assertion: Desired baud rate is too high. */ + assert(baudRate_Bps <= 1000000U); + /* Assertion: Source clock should greater than baud rate * FLEXCAN_TIME_QUANTA_NUM. */ + assert(priDiv <= sourceClock_Hz); + + if (0 == priDiv) + { + priDiv = 1; + } + + priDiv = (sourceClock_Hz / priDiv) - 1; + + /* Desired baud rate is too low. */ + if (priDiv > 0xFF) + { + priDiv = 0xFF; + } + + /* FlexCAN timing setting formula: + * FLEXCAN_TIME_QUANTA_NUM = 1 + (PSEG1 + 1) + (PSEG2 + 1) + (PROPSEG + 1); + */ + timingConfig.preDivider = priDiv; + timingConfig.phaseSeg1 = 3; + timingConfig.phaseSeg2 = 2; + timingConfig.propSeg = 1; + timingConfig.rJumpwidth = 1; + + /* Update actual timing characteristic. */ + FLEXCAN_SetTimingConfig(base, &timingConfig); +} + +void FLEXCAN_Init(CAN_Type *base, const flexcan_config_t *config, uint32_t sourceClock_Hz) +{ + uint32_t mcrTemp; + + /* Assertion. */ + assert(config); + assert((config->maxMbNum > 0) && (config->maxMbNum <= FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(base))); + + /* Enable FlexCAN clock. */ + CLOCK_EnableClock(s_flexcanClock[FLEXCAN_GetInstance(base)]); + + /* Disable FlexCAN Module. */ + FLEXCAN_Enable(base, false); + + /* Protocol-Engine clock source selection, This bit must be set + * when FlexCAN Module in Disable Mode. + */ + base->CTRL1 = (kFLEXCAN_ClkSrcOsc == config->clkSrc) ? base->CTRL1 & ~CAN_CTRL1_CLKSRC_MASK : + base->CTRL1 | CAN_CTRL1_CLKSRC_MASK; + + /* Enable FlexCAN Module for configuartion. */ + FLEXCAN_Enable(base, true); + + /* Reset to known status. */ + FLEXCAN_Reset(base); + + /* Save current MCR value and enable to enter Freeze mode(enabled by default). */ + mcrTemp = base->MCR; + + /* Set the maximum number of Message Buffers */ + mcrTemp = (mcrTemp & ~CAN_MCR_MAXMB_MASK) | CAN_MCR_MAXMB(config->maxMbNum - 1); + + /* Enable Loop Back Mode? */ + base->CTRL1 = (config->enableLoopBack) ? base->CTRL1 | CAN_CTRL1_LPB_MASK : base->CTRL1 & ~CAN_CTRL1_LPB_MASK; + + /* Enable Self Wake Up Mode? */ + mcrTemp = (config->enableSelfWakeup) ? mcrTemp | CAN_MCR_SLFWAK_MASK : mcrTemp & ~CAN_MCR_SLFWAK_MASK; + + /* Enable Individual Rx Masking? */ + mcrTemp = (config->enableIndividMask) ? mcrTemp | CAN_MCR_IRMQ_MASK : mcrTemp & ~CAN_MCR_IRMQ_MASK; + +#if (defined(FSL_FEATURE_FLEXCAN_HAS_DOZE_MODE_SUPPORT) && FSL_FEATURE_FLEXCAN_HAS_DOZE_MODE_SUPPORT) + /* Enable Doze Mode? */ + mcrTemp = (config->enableDoze) ? mcrTemp | CAN_MCR_DOZE_MASK : mcrTemp & ~CAN_MCR_DOZE_MASK; +#endif + + /* Save MCR Configuation. */ + base->MCR = mcrTemp; + + /* Baud Rate Configuration.*/ + FLEXCAN_SetBaudRate(base, sourceClock_Hz, config->baudRate); +} + +void FLEXCAN_Deinit(CAN_Type *base) +{ + /* Reset all Register Contents. */ + FLEXCAN_Reset(base); + + /* Disable FlexCAN module. */ + FLEXCAN_Enable(base, false); + + /* Disable FlexCAN clock. */ + CLOCK_DisableClock(s_flexcanClock[FLEXCAN_GetInstance(base)]); +} + +void FLEXCAN_GetDefaultConfig(flexcan_config_t *config) +{ + /* Assertion. */ + assert(config); + + /* Initialize FlexCAN Module config struct with default value. */ + config->clkSrc = kFLEXCAN_ClkSrcOsc; + config->baudRate = 125000U; + config->maxMbNum = 16; + config->enableLoopBack = false; + config->enableSelfWakeup = false; + config->enableIndividMask = false; +#if (defined(FSL_FEATURE_FLEXCAN_HAS_DOZE_MODE_SUPPORT) && FSL_FEATURE_FLEXCAN_HAS_DOZE_MODE_SUPPORT) + config->enableDoze = false; +#endif +} + +void FLEXCAN_SetTimingConfig(CAN_Type *base, const flexcan_timing_config_t *config) +{ + /* Assertion. */ + assert(config); + + /* Enter Freeze Mode. */ + FLEXCAN_EnterFreezeMode(base); + + /* Cleaning previous Timing Setting. */ + base->CTRL1 &= ~(CAN_CTRL1_PRESDIV_MASK | CAN_CTRL1_RJW_MASK | CAN_CTRL1_PSEG1_MASK | CAN_CTRL1_PSEG2_MASK | + CAN_CTRL1_PROPSEG_MASK); + + /* Updating Timing Setting according to configuration structure. */ + base->CTRL1 |= + (CAN_CTRL1_PRESDIV(config->preDivider) | CAN_CTRL1_RJW(config->rJumpwidth) | + CAN_CTRL1_PSEG1(config->phaseSeg1) | CAN_CTRL1_PSEG2(config->phaseSeg2) | CAN_CTRL1_PROPSEG(config->propSeg)); + + /* Exit Freeze Mode. */ + FLEXCAN_ExitFreezeMode(base); +} + +void FLEXCAN_SetRxMbGlobalMask(CAN_Type *base, uint32_t mask) +{ + /* Enter Freeze Mode. */ + FLEXCAN_EnterFreezeMode(base); + + /* Setting Rx Message Buffer Global Mask value. */ + base->RXMGMASK = mask; + base->RX14MASK = mask; + base->RX15MASK = mask; + + /* Exit Freeze Mode. */ + FLEXCAN_ExitFreezeMode(base); +} + +void FLEXCAN_SetRxFifoGlobalMask(CAN_Type *base, uint32_t mask) +{ + /* Enter Freeze Mode. */ + FLEXCAN_EnterFreezeMode(base); + + /* Setting Rx FIFO Global Mask value. */ + base->RXFGMASK = mask; + + /* Exit Freeze Mode. */ + FLEXCAN_ExitFreezeMode(base); +} + +void FLEXCAN_SetRxIndividualMask(CAN_Type *base, uint8_t maskIdx, uint32_t mask) +{ + assert(maskIdx <= (base->MCR & CAN_MCR_MAXMB_MASK)); + + /* Enter Freeze Mode. */ + FLEXCAN_EnterFreezeMode(base); + + /* Setting Rx Individual Mask value. */ + base->RXIMR[maskIdx] = mask; + + /* Exit Freeze Mode. */ + FLEXCAN_ExitFreezeMode(base); +} + +void FLEXCAN_SetTxMbConfig(CAN_Type *base, uint8_t mbIdx, bool enable) +{ + /* Assertion. */ + assert(mbIdx <= (base->MCR & CAN_MCR_MAXMB_MASK)); + assert(!FLEXCAN_IsMbOccupied(base, mbIdx)); + + /* Inactivate Message Buffer. */ + if (enable) + { + base->MB[mbIdx].CS = CAN_CS_CODE(kFLEXCAN_TxMbInactive); + } + else + { + base->MB[mbIdx].CS = 0; + } + + /* Clean Message Buffer content. */ + base->MB[mbIdx].ID = 0x0; + base->MB[mbIdx].WORD0 = 0x0; + base->MB[mbIdx].WORD1 = 0x0; +} + +void FLEXCAN_SetRxMbConfig(CAN_Type *base, uint8_t mbIdx, const flexcan_rx_mb_config_t *config, bool enable) +{ + /* Assertion. */ + assert(mbIdx <= (base->MCR & CAN_MCR_MAXMB_MASK)); + assert(((config) || (false == enable))); + assert(!FLEXCAN_IsMbOccupied(base, mbIdx)); + + uint32_t cs_temp = 0; + + /* Inactivate Message Buffer. */ + base->MB[mbIdx].CS = 0; + + /* Clean Message Buffer content. */ + base->MB[mbIdx].ID = 0x0; + base->MB[mbIdx].WORD0 = 0x0; + base->MB[mbIdx].WORD1 = 0x0; + + if (enable) + { + /* Setup Message Buffer ID. */ + base->MB[mbIdx].ID = config->id; + + /* Setup Message Buffer format. */ + if (kFLEXCAN_FrameFormatExtend == config->format) + { + cs_temp |= CAN_CS_IDE_MASK; + } + + /* Setup Message Buffer type. */ + if (kFLEXCAN_FrameTypeRemote == config->type) + { + cs_temp |= CAN_CS_RTR_MASK; + } + + /* Activate Rx Message Buffer. */ + cs_temp |= CAN_CS_CODE(kFLEXCAN_RxMbEmpty); + base->MB[mbIdx].CS = cs_temp; + } +} + +void FLEXCAN_SetRxFifoConfig(CAN_Type *base, const flexcan_rx_fifo_config_t *config, bool enable) +{ + /* Assertion. */ + assert((config) || (false == enable)); + + volatile uint32_t *idFilterRegion = (volatile uint32_t *)(&base->MB[6].CS); + uint8_t setup_mb, i, rffn = 0; + + /* Enter Freeze Mode. */ + FLEXCAN_EnterFreezeMode(base); + + if (enable) + { + assert(config->idFilterNum <= 128); + + /* Get the setup_mb value. */ + setup_mb = (base->MCR & CAN_MCR_MAXMB_MASK) >> CAN_MCR_MAXMB_SHIFT; + setup_mb = (setup_mb < FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(base)) ? + setup_mb : + FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(base); + + /* Determine RFFN value. */ + for (i = 0; i <= 0xF; i++) + { + if ((8 * (i + 1)) >= config->idFilterNum) + { + rffn = i; + assert(((setup_mb - 8) - (2 * rffn)) > 0); + + base->CTRL2 = (base->CTRL2 & ~CAN_CTRL2_RFFN_MASK) | CAN_CTRL2_RFFN(rffn); + break; + } + } + } + else + { + rffn = (base->CTRL2 & CAN_CTRL2_RFFN_MASK) >> CAN_CTRL2_RFFN_SHIFT; + } + + /* Clean ID filter table occuyied Message Buffer Region. */ + rffn = (rffn + 1) * 8; + for (i = 0; i < rffn; i++) + { + idFilterRegion[i] = 0x0; + } + + if (enable) + { + /* Disable unused Rx FIFO Filter. */ + for (i = config->idFilterNum; i < rffn; i++) + { + idFilterRegion[i] = 0xFFFFFFFFU; + } + + /* Copy ID filter table to Message Buffer Region. */ + for (i = 0; i < config->idFilterNum; i++) + { + idFilterRegion[i] = config->idFilterTable[i]; + } + + /* Setup ID Fitlter Type. */ + switch (config->idFilterType) + { + case kFLEXCAN_RxFifoFilterTypeA: + base->MCR = (base->MCR & ~CAN_MCR_IDAM_MASK) | CAN_MCR_IDAM(0x0); + break; + case kFLEXCAN_RxFifoFilterTypeB: + base->MCR = (base->MCR & ~CAN_MCR_IDAM_MASK) | CAN_MCR_IDAM(0x1); + break; + case kFLEXCAN_RxFifoFilterTypeC: + base->MCR = (base->MCR & ~CAN_MCR_IDAM_MASK) | CAN_MCR_IDAM(0x2); + break; + case kFLEXCAN_RxFifoFilterTypeD: + /* All frames rejected. */ + base->MCR = (base->MCR & ~CAN_MCR_IDAM_MASK) | CAN_MCR_IDAM(0x3); + break; + default: + break; + } + + /* Setting Message Reception Priority. */ + base->CTRL2 = (config->priority == kFLEXCAN_RxFifoPrioHigh) ? base->CTRL2 & ~CAN_CTRL2_MRP_MASK : + base->CTRL2 | CAN_CTRL2_MRP_MASK; + + /* Enable Rx Message FIFO. */ + base->MCR |= CAN_MCR_RFEN_MASK; + } + else + { + /* Disable Rx Message FIFO. */ + base->MCR &= ~CAN_MCR_RFEN_MASK; + + /* Clean MB0 ~ MB5. */ + FLEXCAN_SetRxMbConfig(base, 0, NULL, false); + FLEXCAN_SetRxMbConfig(base, 1, NULL, false); + FLEXCAN_SetRxMbConfig(base, 2, NULL, false); + FLEXCAN_SetRxMbConfig(base, 3, NULL, false); + FLEXCAN_SetRxMbConfig(base, 4, NULL, false); + FLEXCAN_SetRxMbConfig(base, 5, NULL, false); + } + + /* Exit Freeze Mode. */ + FLEXCAN_ExitFreezeMode(base); +} + +#if (defined(FSL_FEATURE_FLEXCAN_HAS_RX_FIFO_DMA) && FSL_FEATURE_FLEXCAN_HAS_RX_FIFO_DMA) +void FLEXCAN_EnableRxFifoDMA(CAN_Type *base, bool enable) +{ + if (enable) + { + /* Enter Freeze Mode. */ + FLEXCAN_EnterFreezeMode(base); + + /* Enable FlexCAN DMA. */ + base->MCR |= CAN_MCR_DMA_MASK; + + /* Exit Freeze Mode. */ + FLEXCAN_ExitFreezeMode(base); + } + else + { + /* Enter Freeze Mode. */ + FLEXCAN_EnterFreezeMode(base); + + /* Disable FlexCAN DMA. */ + base->MCR &= ~CAN_MCR_DMA_MASK; + + /* Exit Freeze Mode. */ + FLEXCAN_ExitFreezeMode(base); + } +} +#endif /* FSL_FEATURE_FLEXCAN_HAS_RX_FIFO_DMA */ + +status_t FLEXCAN_WriteTxMb(CAN_Type *base, uint8_t mbIdx, const flexcan_frame_t *txFrame) +{ + /* Assertion. */ + assert(mbIdx <= (base->MCR & CAN_MCR_MAXMB_MASK)); + assert(txFrame); + assert(txFrame->length <= 8); + assert(!FLEXCAN_IsMbOccupied(base, mbIdx)); + + uint32_t cs_temp = 0; + + /* Check if Message Buffer is available. */ + if (CAN_CS_CODE(kFLEXCAN_TxMbDataOrRemote) != (base->MB[mbIdx].CS & CAN_CS_CODE_MASK)) + { + /* Inactive Tx Message Buffer. */ + base->MB[mbIdx].CS = (base->MB[mbIdx].CS & ~CAN_CS_CODE_MASK) | CAN_CS_CODE(kFLEXCAN_TxMbInactive); + + /* Fill Message ID field. */ + base->MB[mbIdx].ID = txFrame->id; + + /* Fill Message Format field. */ + if (kFLEXCAN_FrameFormatExtend == txFrame->format) + { + cs_temp |= CAN_CS_SRR_MASK | CAN_CS_IDE_MASK; + } + + /* Fill Message Type field. */ + if (kFLEXCAN_FrameTypeRemote == txFrame->type) + { + cs_temp |= CAN_CS_RTR_MASK; + } + + cs_temp |= CAN_CS_CODE(kFLEXCAN_TxMbDataOrRemote) | CAN_CS_DLC(txFrame->length); + + /* Load Message Payload. */ + base->MB[mbIdx].WORD0 = txFrame->dataWord0; + base->MB[mbIdx].WORD1 = txFrame->dataWord1; + + /* Activate Tx Message Buffer. */ + base->MB[mbIdx].CS = cs_temp; + +#if (defined(FSL_FEATURE_FLEXCAN_HAS_ERRATA_5641) && FSL_FEATURE_FLEXCAN_HAS_ERRATA_5641) + base->MB[FLEXCAN_GetFirstValidMb(base)].CS = CAN_CS_CODE(kFLEXCAN_TxMbInactive); + base->MB[FLEXCAN_GetFirstValidMb(base)].CS = CAN_CS_CODE(kFLEXCAN_TxMbInactive); +#endif + + return kStatus_Success; + } + else + { + /* Tx Message Buffer is activated, return immediately. */ + return kStatus_Fail; + } +} + +status_t FLEXCAN_ReadRxMb(CAN_Type *base, uint8_t mbIdx, flexcan_frame_t *rxFrame) +{ + /* Assertion. */ + assert(mbIdx <= (base->MCR & CAN_MCR_MAXMB_MASK)); + assert(rxFrame); + assert(!FLEXCAN_IsMbOccupied(base, mbIdx)); + + uint32_t cs_temp; + uint8_t rx_code; + + /* Read CS field of Rx Message Buffer to lock Message Buffer. */ + cs_temp = base->MB[mbIdx].CS; + /* Get Rx Message Buffer Code field. */ + rx_code = (cs_temp & CAN_CS_CODE_MASK) >> CAN_CS_CODE_SHIFT; + + /* Check to see if Rx Message Buffer is full. */ + if ((kFLEXCAN_RxMbFull == rx_code) || (kFLEXCAN_RxMbOverrun == rx_code)) + { + /* Store Message ID. */ + rxFrame->id = base->MB[mbIdx].ID & (CAN_ID_EXT_MASK | CAN_ID_STD_MASK); + + /* Get the message ID and format. */ + rxFrame->format = (cs_temp & CAN_CS_IDE_MASK) ? kFLEXCAN_FrameFormatExtend : kFLEXCAN_FrameFormatStandard; + + /* Get the message type. */ + rxFrame->type = (cs_temp & CAN_CS_RTR_MASK) ? kFLEXCAN_FrameTypeRemote : kFLEXCAN_FrameTypeData; + + /* Get the message length. */ + rxFrame->length = (cs_temp & CAN_CS_DLC_MASK) >> CAN_CS_DLC_SHIFT; + + /* Store Message Payload. */ + rxFrame->dataWord0 = base->MB[mbIdx].WORD0; + rxFrame->dataWord1 = base->MB[mbIdx].WORD1; + + /* Read free-running timer to unlock Rx Message Buffer. */ + (void)base->TIMER; + + if (kFLEXCAN_RxMbFull == rx_code) + { + return kStatus_Success; + } + else + { + return kStatus_FLEXCAN_RxOverflow; + } + } + else + { + /* Read free-running timer to unlock Rx Message Buffer. */ + (void)base->TIMER; + + return kStatus_Fail; + } +} + +status_t FLEXCAN_ReadRxFifo(CAN_Type *base, flexcan_frame_t *rxFrame) +{ + /* Assertion. */ + assert(rxFrame); + + uint32_t cs_temp; + + /* Check if Rx FIFO is Enabled. */ + if (base->MCR & CAN_MCR_RFEN_MASK) + { + /* Read CS field of Rx Message Buffer to lock Message Buffer. */ + cs_temp = base->MB[0].CS; + + /* Read data from Rx FIFO output port. */ + /* Store Message ID. */ + rxFrame->id = base->MB[0].ID & (CAN_ID_EXT_MASK | CAN_ID_STD_MASK); + + /* Get the message ID and format. */ + rxFrame->format = (cs_temp & CAN_CS_IDE_MASK) ? kFLEXCAN_FrameFormatExtend : kFLEXCAN_FrameFormatStandard; + + /* Get the message type. */ + rxFrame->type = (cs_temp & CAN_CS_RTR_MASK) ? kFLEXCAN_FrameTypeRemote : kFLEXCAN_FrameTypeData; + + /* Get the message length. */ + rxFrame->length = (cs_temp & CAN_CS_DLC_MASK) >> CAN_CS_DLC_SHIFT; + + /* Store Message Payload. */ + rxFrame->dataWord0 = base->MB[0].WORD0; + rxFrame->dataWord1 = base->MB[0].WORD1; + + /* Store ID Filter Hit Index. */ + rxFrame->idhit = (uint8_t)(base->RXFIR & CAN_RXFIR_IDHIT_MASK); + + /* Read free-running timer to unlock Rx Message Buffer. */ + (void)base->TIMER; + + return kStatus_Success; + } + else + { + return kStatus_Fail; + } +} + +status_t FLEXCAN_TransferSendBlocking(CAN_Type *base, uint8_t mbIdx, flexcan_frame_t *txFrame) +{ + /* Write Tx Message Buffer to initiate a data sending. */ + if (kStatus_Success == FLEXCAN_WriteTxMb(base, mbIdx, txFrame)) + { + /* Wait until CAN Message send out. */ + while (!FLEXCAN_GetMbStatusFlags(base, 1 << mbIdx)) + { + } + + /* Clean Tx Message Buffer Flag. */ + FLEXCAN_ClearMbStatusFlags(base, 1 << mbIdx); + + return kStatus_Success; + } + else + { + return kStatus_Fail; + } +} + +status_t FLEXCAN_TransferReceiveBlocking(CAN_Type *base, uint8_t mbIdx, flexcan_frame_t *rxFrame) +{ + /* Wait until Rx Message Buffer non-empty. */ + while (!FLEXCAN_GetMbStatusFlags(base, 1 << mbIdx)) + { + } + + /* Clean Rx Message Buffer Flag. */ + FLEXCAN_ClearMbStatusFlags(base, 1 << mbIdx); + + /* Read Received CAN Message. */ + return FLEXCAN_ReadRxMb(base, mbIdx, rxFrame); +} + +status_t FLEXCAN_TransferReceiveFifoBlocking(CAN_Type *base, flexcan_frame_t *rxFrame) +{ + status_t rxFifoStatus; + + /* Wait until Rx FIFO non-empty. */ + while (!FLEXCAN_GetMbStatusFlags(base, kFLEXCAN_RxFifoFrameAvlFlag)) + { + } + + /* */ + rxFifoStatus = FLEXCAN_ReadRxFifo(base, rxFrame); + + /* Clean Rx Fifo available flag. */ + FLEXCAN_ClearMbStatusFlags(base, kFLEXCAN_RxFifoFrameAvlFlag); + + return rxFifoStatus; +} + +void FLEXCAN_TransferCreateHandle(CAN_Type *base, + flexcan_handle_t *handle, + flexcan_transfer_callback_t callback, + void *userData) +{ + assert(handle); + + uint8_t instance; + + /* Clean FlexCAN transfer handle. */ + memset(handle, 0, sizeof(*handle)); + + /* Get instance from peripheral base address. */ + instance = FLEXCAN_GetInstance(base); + + /* Save the context in global variables to support the double weak mechanism. */ + s_flexcanHandle[instance] = handle; + + /* Register Callback function. */ + handle->callback = callback; + handle->userData = userData; + + s_flexcanIsr = FLEXCAN_TransferHandleIRQ; + + /* We Enable Error & Status interrupt here, because this interrupt just + * report current status of FlexCAN module through Callback function. + * It is insignificance without a available callback function. + */ + if (handle->callback != NULL) + { + FLEXCAN_EnableInterrupts(base, kFLEXCAN_BusOffInterruptEnable | kFLEXCAN_ErrorInterruptEnable | + kFLEXCAN_RxWarningInterruptEnable | kFLEXCAN_TxWarningInterruptEnable | + kFLEXCAN_WakeUpInterruptEnable); + } + else + { + FLEXCAN_DisableInterrupts(base, kFLEXCAN_BusOffInterruptEnable | kFLEXCAN_ErrorInterruptEnable | + kFLEXCAN_RxWarningInterruptEnable | kFLEXCAN_TxWarningInterruptEnable | + kFLEXCAN_WakeUpInterruptEnable); + } + + /* Enable interrupts in NVIC. */ + EnableIRQ((IRQn_Type)(s_flexcanRxWarningIRQ[instance])); + EnableIRQ((IRQn_Type)(s_flexcanTxWarningIRQ[instance])); + EnableIRQ((IRQn_Type)(s_flexcanWakeUpIRQ[instance])); + EnableIRQ((IRQn_Type)(s_flexcanErrorIRQ[instance])); + EnableIRQ((IRQn_Type)(s_flexcanBusOffIRQ[instance])); + EnableIRQ((IRQn_Type)(s_flexcanMbIRQ[instance])); +} + +status_t FLEXCAN_TransferSendNonBlocking(CAN_Type *base, flexcan_handle_t *handle, flexcan_mb_transfer_t *xfer) +{ + /* Assertion. */ + assert(handle); + assert(xfer); + assert(xfer->mbIdx <= (base->MCR & CAN_MCR_MAXMB_MASK)); + assert(!FLEXCAN_IsMbOccupied(base, xfer->mbIdx)); + + /* Check if Message Buffer is idle. */ + if (kFLEXCAN_StateIdle == handle->mbState[xfer->mbIdx]) + { + /* Distinguish transmit type. */ + if (kFLEXCAN_FrameTypeRemote == xfer->frame->type) + { + handle->mbState[xfer->mbIdx] = kFLEXCAN_StateTxRemote; + + /* Register user Frame buffer to receive remote Frame. */ + handle->mbFrameBuf[xfer->mbIdx] = xfer->frame; + } + else + { + handle->mbState[xfer->mbIdx] = kFLEXCAN_StateTxData; + } + + if (kStatus_Success == FLEXCAN_WriteTxMb(base, xfer->mbIdx, xfer->frame)) + { + /* Enable Message Buffer Interrupt. */ + FLEXCAN_EnableMbInterrupts(base, 1 << xfer->mbIdx); + + return kStatus_Success; + } + else + { + handle->mbState[xfer->mbIdx] = kFLEXCAN_StateIdle; + return kStatus_Fail; + } + } + else + { + return kStatus_FLEXCAN_TxBusy; + } +} + +status_t FLEXCAN_TransferReceiveNonBlocking(CAN_Type *base, flexcan_handle_t *handle, flexcan_mb_transfer_t *xfer) +{ + /* Assertion. */ + assert(handle); + assert(xfer); + assert(xfer->mbIdx <= (base->MCR & CAN_MCR_MAXMB_MASK)); + assert(!FLEXCAN_IsMbOccupied(base, xfer->mbIdx)); + + /* Check if Message Buffer is idle. */ + if (kFLEXCAN_StateIdle == handle->mbState[xfer->mbIdx]) + { + handle->mbState[xfer->mbIdx] = kFLEXCAN_StateRxData; + + /* Register Message Buffer. */ + handle->mbFrameBuf[xfer->mbIdx] = xfer->frame; + + /* Enable Message Buffer Interrupt. */ + FLEXCAN_EnableMbInterrupts(base, 1 << xfer->mbIdx); + + return kStatus_Success; + } + else + { + return kStatus_FLEXCAN_RxBusy; + } +} + +status_t FLEXCAN_TransferReceiveFifoNonBlocking(CAN_Type *base, flexcan_handle_t *handle, flexcan_fifo_transfer_t *xfer) +{ + /* Assertion. */ + assert(handle); + assert(xfer); + + /* Check if Message Buffer is idle. */ + if (kFLEXCAN_StateIdle == handle->rxFifoState) + { + handle->rxFifoState = kFLEXCAN_StateRxFifo; + + /* Register Message Buffer. */ + handle->rxFifoFrameBuf = xfer->frame; + + /* Enable Message Buffer Interrupt. */ + FLEXCAN_EnableMbInterrupts( + base, kFLEXCAN_RxFifoOverflowFlag | kFLEXCAN_RxFifoWarningFlag | kFLEXCAN_RxFifoFrameAvlFlag); + + return kStatus_Success; + } + else + { + return kStatus_FLEXCAN_RxFifoBusy; + } +} + +void FLEXCAN_TransferAbortSend(CAN_Type *base, flexcan_handle_t *handle, uint8_t mbIdx) +{ + /* Assertion. */ + assert(handle); + assert(mbIdx <= (base->MCR & CAN_MCR_MAXMB_MASK)); + assert(!FLEXCAN_IsMbOccupied(base, mbIdx)); + + /* Disable Message Buffer Interrupt. */ + FLEXCAN_DisableMbInterrupts(base, 1 << mbIdx); + + /* Un-register handle. */ + handle->mbFrameBuf[mbIdx] = 0x0; + + /* Clean Message Buffer. */ + FLEXCAN_SetTxMbConfig(base, mbIdx, true); + + handle->mbState[mbIdx] = kFLEXCAN_StateIdle; +} + +void FLEXCAN_TransferAbortReceive(CAN_Type *base, flexcan_handle_t *handle, uint8_t mbIdx) +{ + /* Assertion. */ + assert(handle); + assert(mbIdx <= (base->MCR & CAN_MCR_MAXMB_MASK)); + assert(!FLEXCAN_IsMbOccupied(base, mbIdx)); + + /* Disable Message Buffer Interrupt. */ + FLEXCAN_DisableMbInterrupts(base, 1 << mbIdx); + + /* Un-register handle. */ + handle->mbFrameBuf[mbIdx] = 0x0; + handle->mbState[mbIdx] = kFLEXCAN_StateIdle; +} + +void FLEXCAN_TransferAbortReceiveFifo(CAN_Type *base, flexcan_handle_t *handle) +{ + /* Assertion. */ + assert(handle); + + /* Check if Rx FIFO is enabled. */ + if (base->MCR & CAN_MCR_RFEN_MASK) + { + /* Disable Rx Message FIFO Interrupts. */ + FLEXCAN_DisableMbInterrupts( + base, kFLEXCAN_RxFifoOverflowFlag | kFLEXCAN_RxFifoWarningFlag | kFLEXCAN_RxFifoFrameAvlFlag); + + /* Un-register handle. */ + handle->rxFifoFrameBuf = 0x0; + } + + handle->rxFifoState = kFLEXCAN_StateIdle; +} + +void FLEXCAN_TransferHandleIRQ(CAN_Type *base, flexcan_handle_t *handle) +{ + /* Assertion. */ + assert(handle); + + status_t status = kStatus_FLEXCAN_UnHandled; + uint32_t result; + + /* Store Current FlexCAN Module Error and Status. */ + result = base->ESR1; + + do + { + /* Solve FlexCAN Error and Status Interrupt. */ + if (result & (kFLEXCAN_TxWarningIntFlag | kFLEXCAN_RxWarningIntFlag | kFLEXCAN_BusOffIntFlag | + kFLEXCAN_ErrorIntFlag | kFLEXCAN_WakeUpIntFlag)) + { + status = kStatus_FLEXCAN_ErrorStatus; + + /* Clear FlexCAN Error and Status Interrupt. */ + FLEXCAN_ClearStatusFlags(base, kFLEXCAN_TxWarningIntFlag | kFLEXCAN_RxWarningIntFlag | + kFLEXCAN_BusOffIntFlag | kFLEXCAN_ErrorIntFlag | kFLEXCAN_WakeUpIntFlag); + } + /* Solve FlexCAN Rx FIFO & Message Buffer Interrupt. */ + else + { + /* For this implementation, we solve the Message with lowest MB index first. */ + for (result = 0; result < FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(base); result++) + { + /* Get the lowest unhandled Message Buffer */ + if ((FLEXCAN_GetMbStatusFlags(base, 1 << result)) && (FLEXCAN_IsMbIntEnabled(base, result))) + { + break; + } + } + + /* Does not find Message to deal with. */ + if (result == FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(base)) + { + break; + } + + /* Solve Rx FIFO interrupt. */ + if ((kFLEXCAN_StateIdle != handle->rxFifoState) && ((1 << result) <= kFLEXCAN_RxFifoOverflowFlag)) + { + switch (1 << result) + { + case kFLEXCAN_RxFifoOverflowFlag: + status = kStatus_FLEXCAN_RxFifoOverflow; + break; + + case kFLEXCAN_RxFifoWarningFlag: + status = kStatus_FLEXCAN_RxFifoWarning; + break; + + case kFLEXCAN_RxFifoFrameAvlFlag: + status = FLEXCAN_ReadRxFifo(base, handle->rxFifoFrameBuf); + if (kStatus_Success == status) + { + status = kStatus_FLEXCAN_RxFifoIdle; + } + FLEXCAN_TransferAbortReceiveFifo(base, handle); + break; + + default: + status = kStatus_FLEXCAN_UnHandled; + break; + } + } + else + { + /* Get current State of Message Buffer. */ + switch (handle->mbState[result]) + { + /* Solve Rx Data Frame. */ + case kFLEXCAN_StateRxData: + status = FLEXCAN_ReadRxMb(base, result, handle->mbFrameBuf[result]); + if (kStatus_Success == status) + { + status = kStatus_FLEXCAN_RxIdle; + } + FLEXCAN_TransferAbortReceive(base, handle, result); + break; + + /* Solve Rx Remote Frame. */ + case kFLEXCAN_StateRxRemote: + status = FLEXCAN_ReadRxMb(base, result, handle->mbFrameBuf[result]); + if (kStatus_Success == status) + { + status = kStatus_FLEXCAN_RxIdle; + } + FLEXCAN_TransferAbortReceive(base, handle, result); + break; + + /* Solve Tx Data Frame. */ + case kFLEXCAN_StateTxData: + status = kStatus_FLEXCAN_TxIdle; + FLEXCAN_TransferAbortSend(base, handle, result); + break; + + /* Solve Tx Remote Frame. */ + case kFLEXCAN_StateTxRemote: + handle->mbState[result] = kFLEXCAN_StateRxRemote; + status = kStatus_FLEXCAN_TxSwitchToRx; + break; + + default: + status = kStatus_FLEXCAN_UnHandled; + break; + } + } + + /* Clear resolved Message Buffer IRQ. */ + FLEXCAN_ClearMbStatusFlags(base, 1 << result); + } + + /* Calling Callback Function if has one. */ + if (handle->callback != NULL) + { + handle->callback(base, handle, status, result, handle->userData); + } + + /* Reset return status */ + status = kStatus_FLEXCAN_UnHandled; + + /* Store Current FlexCAN Module Error and Status. */ + result = base->ESR1; + } +#if (defined(FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER)) && (FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER > 0) + while ((0 != FLEXCAN_GetMbStatusFlags(base, 0xFFFFFFFFFFFFFFFFU)) || + (0 != (result & (kFLEXCAN_TxWarningIntFlag | kFLEXCAN_RxWarningIntFlag | kFLEXCAN_BusOffIntFlag | + kFLEXCAN_ErrorIntFlag | kFLEXCAN_WakeUpIntFlag)))); +#else + while ((0 != FLEXCAN_GetMbStatusFlags(base, 0xFFFFFFFFU)) || + (0 != (result & (kFLEXCAN_TxWarningIntFlag | kFLEXCAN_RxWarningIntFlag | kFLEXCAN_BusOffIntFlag | + kFLEXCAN_ErrorIntFlag | kFLEXCAN_WakeUpIntFlag)))); +#endif +} + +#if (FSL_FEATURE_SOC_FLEXCAN_COUNT > 0) +void CAN0_DriverIRQHandler(void) +{ + assert(s_flexcanHandle[0]); + + s_flexcanIsr(CAN0, s_flexcanHandle[0]); +} +#endif + +#if (FSL_FEATURE_SOC_FLEXCAN_COUNT > 1) +void CAN1_DriverIRQHandler(void) +{ + assert(s_flexcanHandle[1]); + + s_flexcanIsr(CAN1, s_flexcanHandle[1]); +} +#endif + +#if (FSL_FEATURE_SOC_FLEXCAN_COUNT > 2) +void CAN2_DriverIRQHandler(void) +{ + assert(s_flexcanHandle[2]); + + s_flexcanIsr(CAN2, s_flexcanHandle[2]); +} +#endif + +#if (FSL_FEATURE_SOC_FLEXCAN_COUNT > 3) +void CAN3_DriverIRQHandler(void) +{ + assert(s_flexcanHandle[3]); + + s_flexcanIsr(CAN3, s_flexcanHandle[3]); +} +#endif + +#if (FSL_FEATURE_SOC_FLEXCAN_COUNT > 4) +void CAN4_DriverIRQHandler(void) +{ + assert(s_flexcanHandle[4]); + + s_flexcanIsr(CAN4, s_flexcanHandle[4]); +} +#endif diff --git a/drivers/fsl_flexcan.h b/drivers/fsl_flexcan.h new file mode 100644 index 0000000..203212e --- /dev/null +++ b/drivers/fsl_flexcan.h @@ -0,0 +1,1052 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_FLEXCAN_H_ +#define _FSL_FLEXCAN_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup flexcan_driver + * @{ + */ + + +/****************************************************************************** + * Definitions + *****************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief FlexCAN driver version 2.1.0. */ +#define FLEXCAN_DRIVER_VERSION (MAKE_VERSION(2, 1, 0)) +/*@}*/ + +/*! @brief FlexCAN Frame ID helper macro. */ +#define FLEXCAN_ID_STD(id) \ + (((uint32_t)(((uint32_t)(id)) << CAN_ID_STD_SHIFT)) & CAN_ID_STD_MASK) /*!< Standard Frame ID helper macro. */ +#define FLEXCAN_ID_EXT(id) \ + (((uint32_t)(((uint32_t)(id)) << CAN_ID_EXT_SHIFT)) & \ + (CAN_ID_EXT_MASK | CAN_ID_STD_MASK)) /*!< Extend Frame ID helper macro. */ + +/*! @brief FlexCAN Rx Message Buffer Mask helper macro. */ +#define FLEXCAN_RX_MB_STD_MASK(id, rtr, ide) \ + (((uint32_t)((uint32_t)(rtr) << 31) | (uint32_t)((uint32_t)(ide) << 30)) | \ + FLEXCAN_ID_STD(id)) /*!< Standard Rx Message Buffer Mask helper macro. */ +#define FLEXCAN_RX_MB_EXT_MASK(id, rtr, ide) \ + (((uint32_t)((uint32_t)(rtr) << 31) | (uint32_t)((uint32_t)(ide) << 30)) | \ + FLEXCAN_ID_EXT(id)) /*!< Extend Rx Message Buffer Mask helper macro. */ + +/*! @brief FlexCAN Rx FIFO Mask helper macro. */ +#define FLEXCAN_RX_FIFO_STD_MASK_TYPE_A(id, rtr, ide) \ + (((uint32_t)((uint32_t)(rtr) << 31) | (uint32_t)((uint32_t)(ide) << 30)) | \ + (FLEXCAN_ID_STD(id) << 1)) /*!< Standard Rx FIFO Mask helper macro Type A helper macro. */ +#define FLEXCAN_RX_FIFO_STD_MASK_TYPE_B_HIGH(id, rtr, ide) \ + (((uint32_t)((uint32_t)(rtr) << 31) | (uint32_t)((uint32_t)(ide) << 30)) | \ + (FLEXCAN_ID_STD(id) << 16)) /*!< Standard Rx FIFO Mask helper macro Type B upper part helper macro. */ +#define FLEXCAN_RX_FIFO_STD_MASK_TYPE_B_LOW(id, rtr, ide) \ + (((uint32_t)((uint32_t)(rtr) << 15) | (uint32_t)((uint32_t)(ide) << 14)) | \ + FLEXCAN_ID_STD(id)) /*!< Standard Rx FIFO Mask helper macro Type B lower part helper macro. */ +#define FLEXCAN_RX_FIFO_STD_MASK_TYPE_C_HIGH(id) \ + ((FLEXCAN_ID_STD(id) & 0x7F8) << 21) /*!< Standard Rx FIFO Mask helper macro Type C upper part helper macro. */ +#define FLEXCAN_RX_FIFO_STD_MASK_TYPE_C_MID_HIGH(id) \ + ((FLEXCAN_ID_STD(id) & 0x7F8) << 13) /*!< Standard Rx FIFO Mask helper macro Type C mid-upper part helper macro. \ + */ +#define FLEXCAN_RX_FIFO_STD_MASK_TYPE_C_MID_LOW(id) \ + ((FLEXCAN_ID_STD(id) & 0x7F8) << 5) /*!< Standard Rx FIFO Mask helper macro Type C mid-lower part helper macro. */ +#define FLEXCAN_RX_FIFO_STD_MASK_TYPE_C_LOW(id) \ + ((FLEXCAN_ID_STD(id) & 0x7F8) >> 3) /*!< Standard Rx FIFO Mask helper macro Type C lower part helper macro. */ +#define FLEXCAN_RX_FIFO_EXT_MASK_TYPE_A(id, rtr, ide) \ + (((uint32_t)((uint32_t)(rtr) << 31) | (uint32_t)((uint32_t)(ide) << 30)) | \ + (FLEXCAN_ID_EXT(id) << 1)) /*!< Extend Rx FIFO Mask helper macro Type A helper macro. */ +#define FLEXCAN_RX_FIFO_EXT_MASK_TYPE_B_HIGH(id, rtr, ide) \ + ( \ + ((uint32_t)((uint32_t)(rtr) << 31) | (uint32_t)((uint32_t)(ide) << 30)) | \ + ((FLEXCAN_ID_EXT(id) & 0x1FFF8000) \ + << 1)) /*!< Extend Rx FIFO Mask helper macro Type B upper part helper macro. */ +#define FLEXCAN_RX_FIFO_EXT_MASK_TYPE_B_LOW(id, rtr, ide) \ + (((uint32_t)((uint32_t)(rtr) << 15) | (uint32_t)((uint32_t)(ide) << 14)) | \ + ((FLEXCAN_ID_EXT(id) & 0x1FFF8000) >> \ + 15)) /*!< Extend Rx FIFO Mask helper macro Type B lower part helper macro. */ +#define FLEXCAN_RX_FIFO_EXT_MASK_TYPE_C_HIGH(id) \ + ((FLEXCAN_ID_EXT(id) & 0x1FE00000) << 3) /*!< Extend Rx FIFO Mask helper macro Type C upper part helper macro. */ +#define FLEXCAN_RX_FIFO_EXT_MASK_TYPE_C_MID_HIGH(id) \ + ((FLEXCAN_ID_EXT(id) & 0x1FE00000) >> \ + 5) /*!< Extend Rx FIFO Mask helper macro Type C mid-upper part helper macro. */ +#define FLEXCAN_RX_FIFO_EXT_MASK_TYPE_C_MID_LOW(id) \ + ((FLEXCAN_ID_EXT(id) & 0x1FE00000) >> \ + 13) /*!< Extend Rx FIFO Mask helper macro Type C mid-lower part helper macro. */ +#define FLEXCAN_RX_FIFO_EXT_MASK_TYPE_C_LOW(id) \ + ((FLEXCAN_ID_EXT(id) & 0x1FE00000) >> 21) /*!< Extend Rx FIFO Mask helper macro Type C lower part helper macro. */ + +/*! @brief FlexCAN Rx FIFO Filter helper macro. */ +#define FLEXCAN_RX_FIFO_STD_FILTER_TYPE_A(id, rtr, ide) \ + FLEXCAN_RX_FIFO_STD_MASK_TYPE_A(id, rtr, ide) /*!< Standard Rx FIFO Filter helper macro Type A helper macro. */ +#define FLEXCAN_RX_FIFO_STD_FILTER_TYPE_B_HIGH(id, rtr, ide) \ + FLEXCAN_RX_FIFO_STD_MASK_TYPE_B_HIGH( \ + id, rtr, ide) /*!< Standard Rx FIFO Filter helper macro Type B upper part helper macro. */ +#define FLEXCAN_RX_FIFO_STD_FILTER_TYPE_B_LOW(id, rtr, ide) \ + FLEXCAN_RX_FIFO_STD_MASK_TYPE_B_LOW( \ + id, rtr, ide) /*!< Standard Rx FIFO Filter helper macro Type B lower part helper macro. */ +#define FLEXCAN_RX_FIFO_STD_FILTER_TYPE_C_HIGH(id) \ + FLEXCAN_RX_FIFO_STD_MASK_TYPE_C_HIGH( \ + id) /*!< Standard Rx FIFO Filter helper macro Type C upper part helper macro. */ +#define FLEXCAN_RX_FIFO_STD_FILTER_TYPE_C_MID_HIGH(id) \ + FLEXCAN_RX_FIFO_STD_MASK_TYPE_C_MID_HIGH( \ + id) /*!< Standard Rx FIFO Filter helper macro Type C mid-upper part helper macro. */ +#define FLEXCAN_RX_FIFO_STD_FILTER_TYPE_C_MID_LOW(id) \ + FLEXCAN_RX_FIFO_STD_MASK_TYPE_C_MID_LOW( \ + id) /*!< Standard Rx FIFO Filter helper macro Type C mid-lower part helper macro. */ +#define FLEXCAN_RX_FIFO_STD_FILTER_TYPE_C_LOW(id) \ + FLEXCAN_RX_FIFO_STD_MASK_TYPE_C_LOW(id) /*!< Standard Rx FIFO Filter helper macro Type C lower part helper macro. \ + */ +#define FLEXCAN_RX_FIFO_EXT_FILTER_TYPE_A(id, rtr, ide) \ + FLEXCAN_RX_FIFO_EXT_MASK_TYPE_A(id, rtr, ide) /*!< Extend Rx FIFO Filter helper macro Type A helper macro. */ +#define FLEXCAN_RX_FIFO_EXT_FILTER_TYPE_B_HIGH(id, rtr, ide) \ + FLEXCAN_RX_FIFO_EXT_MASK_TYPE_B_HIGH( \ + id, rtr, ide) /*!< Extend Rx FIFO Filter helper macro Type B upper part helper macro. */ +#define FLEXCAN_RX_FIFO_EXT_FILTER_TYPE_B_LOW(id, rtr, ide) \ + FLEXCAN_RX_FIFO_EXT_MASK_TYPE_B_LOW( \ + id, rtr, ide) /*!< Extend Rx FIFO Filter helper macro Type B lower part helper macro. */ +#define FLEXCAN_RX_FIFO_EXT_FILTER_TYPE_C_HIGH(id) \ + FLEXCAN_RX_FIFO_EXT_MASK_TYPE_C_HIGH(id) /*!< Extend Rx FIFO Filter helper macro Type C upper part helper macro. \ + */ +#define FLEXCAN_RX_FIFO_EXT_FILTER_TYPE_C_MID_HIGH(id) \ + FLEXCAN_RX_FIFO_EXT_MASK_TYPE_C_MID_HIGH( \ + id) /*!< Extend Rx FIFO Filter helper macro Type C mid-upper part helper macro. */ +#define FLEXCAN_RX_FIFO_EXT_FILTER_TYPE_C_MID_LOW(id) \ + FLEXCAN_RX_FIFO_EXT_MASK_TYPE_C_MID_LOW( \ + id) /*!< Extend Rx FIFO Filter helper macro Type C mid-lower part helper macro. */ +#define FLEXCAN_RX_FIFO_EXT_FILTER_TYPE_C_LOW(id) \ + FLEXCAN_RX_FIFO_EXT_MASK_TYPE_C_LOW(id) /*!< Extend Rx FIFO Filter helper macro Type C lower part helper macro. */ + +/*! @brief FlexCAN transfer status. */ +enum _flexcan_status +{ + kStatus_FLEXCAN_TxBusy = MAKE_STATUS(kStatusGroup_FLEXCAN, 0), /*!< Tx Message Buffer is Busy. */ + kStatus_FLEXCAN_TxIdle = MAKE_STATUS(kStatusGroup_FLEXCAN, 1), /*!< Tx Message Buffer is Idle. */ + kStatus_FLEXCAN_TxSwitchToRx = MAKE_STATUS( + kStatusGroup_FLEXCAN, 2), /*!< Remote Message is send out and Message buffer changed to Receive one. */ + kStatus_FLEXCAN_RxBusy = MAKE_STATUS(kStatusGroup_FLEXCAN, 3), /*!< Rx Message Buffer is Busy. */ + kStatus_FLEXCAN_RxIdle = MAKE_STATUS(kStatusGroup_FLEXCAN, 4), /*!< Rx Message Buffer is Idle. */ + kStatus_FLEXCAN_RxOverflow = MAKE_STATUS(kStatusGroup_FLEXCAN, 5), /*!< Rx Message Buffer is Overflowed. */ + kStatus_FLEXCAN_RxFifoBusy = MAKE_STATUS(kStatusGroup_FLEXCAN, 6), /*!< Rx Message FIFO is Busy. */ + kStatus_FLEXCAN_RxFifoIdle = MAKE_STATUS(kStatusGroup_FLEXCAN, 7), /*!< Rx Message FIFO is Idle. */ + kStatus_FLEXCAN_RxFifoOverflow = MAKE_STATUS(kStatusGroup_FLEXCAN, 8), /*!< Rx Message FIFO is overflowed. */ + kStatus_FLEXCAN_RxFifoWarning = MAKE_STATUS(kStatusGroup_FLEXCAN, 0), /*!< Rx Message FIFO is almost overflowed. */ + kStatus_FLEXCAN_ErrorStatus = MAKE_STATUS(kStatusGroup_FLEXCAN, 10), /*!< FlexCAN Module Error and Status. */ + kStatus_FLEXCAN_UnHandled = MAKE_STATUS(kStatusGroup_FLEXCAN, 11), /*!< UnHadled Interrupt asserted. */ +}; + +/*! @brief FlexCAN frame format. */ +typedef enum _flexcan_frame_format +{ + kFLEXCAN_FrameFormatStandard = 0x0U, /*!< Standard frame format attribute. */ + kFLEXCAN_FrameFormatExtend = 0x1U, /*!< Extend frame format attribute. */ +} flexcan_frame_format_t; + +/*! @brief FlexCAN frame type. */ +typedef enum _flexcan_frame_type +{ + kFLEXCAN_FrameTypeData = 0x0U, /*!< Data frame type attribute. */ + kFLEXCAN_FrameTypeRemote = 0x1U, /*!< Remote frame type attribute. */ +} flexcan_frame_type_t; + +/*! @brief FlexCAN clock source. */ +typedef enum _flexcan_clock_source +{ + kFLEXCAN_ClkSrcOsc = 0x0U, /*!< FlexCAN Protocol Engine clock from Oscillator. */ + kFLEXCAN_ClkSrcPeri = 0x1U, /*!< FlexCAN Protocol Engine clock from Peripheral Clock. */ +} flexcan_clock_source_t; + +/*! @brief FlexCAN Rx Fifo Filter type. */ +typedef enum _flexcan_rx_fifo_filter_type +{ + kFLEXCAN_RxFifoFilterTypeA = 0x0U, /*!< One full ID (standard and extended) per ID Filter element. */ + kFLEXCAN_RxFifoFilterTypeB = + 0x1U, /*!< Two full standard IDs or two partial 14-bit ID slices per ID Filter Table element. */ + kFLEXCAN_RxFifoFilterTypeC = + 0x2U, /*!< Four partial 8-bit Standard or extended ID slices per ID Filter Table element. */ + kFLEXCAN_RxFifoFilterTypeD = 0x3U, /*!< All frames rejected. */ +} flexcan_rx_fifo_filter_type_t; + +/*! + * @brief FlexCAN Rx FIFO priority + * + * The matching process starts from the Rx MB(or Rx FIFO) with higher priority. + * If no MB(or Rx FIFO filter) is satisfied, the matching process goes on with + * the Rx FIFO(or Rx MB) with lower priority. + */ +typedef enum _flexcan_rx_fifo_priority +{ + kFLEXCAN_RxFifoPrioLow = 0x0U, /*!< Matching process start from Rx Message Buffer first*/ + kFLEXCAN_RxFifoPrioHigh = 0x1U, /*!< Matching process start from Rx FIFO first*/ +} flexcan_rx_fifo_priority_t; + +/*! + * @brief FlexCAN interrupt configuration structure, default settings all disabled. + * + * This structure contains the settings for all of the FlexCAN Module interrupt configurations. + * Note: FlexCAN Message Buffers and Rx FIFO have their own interrupts. + */ +enum _flexcan_interrupt_enable +{ + kFLEXCAN_BusOffInterruptEnable = CAN_CTRL1_BOFFMSK_MASK, /*!< Bus Off interrupt. */ + kFLEXCAN_ErrorInterruptEnable = CAN_CTRL1_ERRMSK_MASK, /*!< Error interrupt. */ + kFLEXCAN_RxWarningInterruptEnable = CAN_CTRL1_RWRNMSK_MASK, /*!< Rx Warning interrupt. */ + kFLEXCAN_TxWarningInterruptEnable = CAN_CTRL1_TWRNMSK_MASK, /*!< Tx Warning interrupt. */ + kFLEXCAN_WakeUpInterruptEnable = CAN_MCR_WAKMSK_MASK, /*!< Wake Up interrupt. */ +}; + +/*! + * @brief FlexCAN status flags. + * + * This provides constants for the FlexCAN status flags for use in the FlexCAN functions. + * Note: The CPU read action clears FlEXCAN_ErrorFlag, therefore user need to + * read FlEXCAN_ErrorFlag and distinguish which error is occur using + * @ref _flexcan_error_flags enumerations. + */ +enum _flexcan_flags +{ + kFLEXCAN_SynchFlag = CAN_ESR1_SYNCH_MASK, /*!< CAN Synchronization Status. */ + kFLEXCAN_TxWarningIntFlag = CAN_ESR1_TWRNINT_MASK, /*!< Tx Warning Interrupt Flag. */ + kFLEXCAN_RxWarningIntFlag = CAN_ESR1_RWRNINT_MASK, /*!< Rx Warning Interrupt Flag. */ + kFLEXCAN_TxErrorWarningFlag = CAN_ESR1_TXWRN_MASK, /*!< Tx Error Warning Status. */ + kFLEXCAN_RxErrorWarningFlag = CAN_ESR1_RXWRN_MASK, /*!< Rx Error Warning Status. */ + kFLEXCAN_IdleFlag = CAN_ESR1_IDLE_MASK, /*!< CAN IDLE Status Flag. */ + kFLEXCAN_FaultConfinementFlag = CAN_ESR1_FLTCONF_MASK, /*!< Fault Confinement State Flag. */ + kFLEXCAN_TransmittingFlag = CAN_ESR1_TX_MASK, /*!< FlexCAN In Transmission Status. */ + kFLEXCAN_ReceivingFlag = CAN_ESR1_RX_MASK, /*!< FlexCAN In Reception Status. */ + kFLEXCAN_BusOffIntFlag = CAN_ESR1_BOFFINT_MASK, /*!< Bus Off Interrupt Flag. */ + kFLEXCAN_ErrorIntFlag = CAN_ESR1_ERRINT_MASK, /*!< Error Interrupt Flag. */ + kFLEXCAN_WakeUpIntFlag = CAN_ESR1_WAKINT_MASK, /*!< Wake-Up Interrupt Flag. */ + kFLEXCAN_ErrorFlag = CAN_ESR1_BIT1ERR_MASK | /*!< All FlexCAN Error Status. */ + CAN_ESR1_BIT0ERR_MASK | + CAN_ESR1_ACKERR_MASK | CAN_ESR1_CRCERR_MASK | CAN_ESR1_FRMERR_MASK | CAN_ESR1_STFERR_MASK, +}; + +/*! + * @brief FlexCAN error status flags. + * + * The FlexCAN Error Status enumerations is used to report current error of the FlexCAN bus. + * This enumerations should be used with KFLEXCAN_ErrorFlag in @ref _flexcan_flags enumerations + * to ditermine which error is generated. + */ +enum _flexcan_error_flags +{ + kFLEXCAN_StuffingError = CAN_ESR1_STFERR_MASK, /*!< Stuffing Error. */ + kFLEXCAN_FormError = CAN_ESR1_FRMERR_MASK, /*!< Form Error. */ + kFLEXCAN_CrcError = CAN_ESR1_CRCERR_MASK, /*!< Cyclic Redundancy Check Error. */ + kFLEXCAN_AckError = CAN_ESR1_ACKERR_MASK, /*!< Received no ACK on transmission. */ + kFLEXCAN_Bit0Error = CAN_ESR1_BIT0ERR_MASK, /*!< Unable to send dominant bit. */ + kFLEXCAN_Bit1Error = CAN_ESR1_BIT1ERR_MASK, /*!< Unable to send recessive bit. */ +}; + +/*! + * @brief FlexCAN Rx FIFO status flags. + * + * The FlexCAN Rx FIFO Status enumerations are used to determine the status of the + * Rx FIFO. Because Rx FIFO occupy the MB0 ~ MB7 (Rx Fifo filter also occupies + * more Message Buffer space), Rx FIFO status flags are mapped to the corresponding + * Message Buffer status flags. + */ +enum _flexcan_rx_fifo_flags +{ + kFLEXCAN_RxFifoOverflowFlag = CAN_IFLAG1_BUF7I_MASK, /*!< Rx FIFO overflow flag. */ + kFLEXCAN_RxFifoWarningFlag = CAN_IFLAG1_BUF6I_MASK, /*!< Rx FIFO almost full flag. */ + kFLEXCAN_RxFifoFrameAvlFlag = CAN_IFLAG1_BUF5I_MASK, /*!< Frames available in Rx FIFO flag. */ +}; + +#if defined(__CC_ARM) +#pragma anon_unions +#endif +/*! @brief FlexCAN message frame structure. */ +typedef struct _flexcan_frame +{ + struct + { + uint32_t timestamp : 16; /*!< FlexCAN internal Free-Running Counter Time Stamp. */ + uint32_t length : 4; /*!< CAN frame payload length in bytes(Range: 0~8). */ + uint32_t type : 1; /*!< CAN Frame Type(DATA or REMOTE). */ + uint32_t format : 1; /*!< CAN Frame Identifier(STD or EXT format). */ + uint32_t reserve1 : 1; /*!< Reserved for placeholder. */ + uint32_t idhit : 9; /*!< CAN Rx FIFO filter hit id(This value is only used in Rx FIFO receive mode). */ + }; + struct + { + uint32_t id : 29; /*!< CAN Frame Identifier, should be set using FLEXCAN_ID_EXT() or FLEXCAN_ID_STD() macro. */ + uint32_t reserve2 : 3; /*!< Reserved for place holder. */ + }; + union + { + struct + { + uint32_t dataWord0; /*!< CAN Frame payload word0. */ + uint32_t dataWord1; /*!< CAN Frame payload word1. */ + }; + struct + { + uint8_t dataByte3; /*!< CAN Frame payload byte3. */ + uint8_t dataByte2; /*!< CAN Frame payload byte2. */ + uint8_t dataByte1; /*!< CAN Frame payload byte1. */ + uint8_t dataByte0; /*!< CAN Frame payload byte0. */ + uint8_t dataByte7; /*!< CAN Frame payload byte7. */ + uint8_t dataByte6; /*!< CAN Frame payload byte6. */ + uint8_t dataByte5; /*!< CAN Frame payload byte5. */ + uint8_t dataByte4; /*!< CAN Frame payload byte4. */ + }; + }; +} flexcan_frame_t; + +/*! @brief FlexCAN module configuration structure. */ +typedef struct _flexcan_config +{ + uint32_t baudRate; /*!< FlexCAN baud rate in bps. */ + flexcan_clock_source_t clkSrc; /*!< Clock source for FlexCAN Protocol Engine. */ + uint8_t maxMbNum; /*!< The maximum number of Message Buffers used by user. */ + bool enableLoopBack; /*!< Enable or Disable Loop Back Self Test Mode. */ + bool enableSelfWakeup; /*!< Enable or Disable Self Wakeup Mode. */ + bool enableIndividMask; /*!< Enable or Disable Rx Individual Mask. */ +#if (defined(FSL_FEATURE_FLEXCAN_HAS_DOZE_MODE_SUPPORT) && FSL_FEATURE_FLEXCAN_HAS_DOZE_MODE_SUPPORT) + bool enableDoze; /*!< Enable or Disable Doze Mode. */ +#endif +} flexcan_config_t; + +/*! @brief FlexCAN protocol timing characteristic configuration structure. */ +typedef struct _flexcan_timing_config +{ + uint8_t preDivider; /*!< Clock Pre-scaler Division Factor. */ + uint8_t rJumpwidth; /*!< Re-sync Jump Width. */ + uint8_t phaseSeg1; /*!< Phase Segment 1. */ + uint8_t phaseSeg2; /*!< Phase Segment 2. */ + uint8_t propSeg; /*!< Propagation Segment. */ +} flexcan_timing_config_t; + +/*! + * @brief FlexCAN Receive Message Buffer configuration structure + * + * This structure is used as the parameter of FLEXCAN_SetRxMbConfig() function. + * The FLEXCAN_SetRxMbConfig() function is used to configure FlexCAN Receive + * Message Buffer. The function abort previous receiving process, clean the + * Message Buffer and activate the Rx Message Buffer using given Message Buffer + * setting. + */ +typedef struct _flexcan_rx_mb_config +{ + uint32_t id; /*!< CAN Message Buffer Frame Identifier, should be set using + FLEXCAN_ID_EXT() or FLEXCAN_ID_STD() macro. */ + flexcan_frame_format_t format; /*!< CAN Frame Identifier format(Standard of Extend). */ + flexcan_frame_type_t type; /*!< CAN Frame Type(Data or Remote). */ +} flexcan_rx_mb_config_t; + +/*! @brief FlexCAN Rx FIFO configure structure. */ +typedef struct _flexcan_rx_fifo_config +{ + uint32_t *idFilterTable; /*!< Pointer to FlexCAN Rx FIFO identifier filter table. */ + uint8_t idFilterNum; /*!< The quantity of filter elements. */ + flexcan_rx_fifo_filter_type_t idFilterType; /*!< The FlexCAN Rx FIFO Filter type. */ + flexcan_rx_fifo_priority_t priority; /*!< The FlexCAN Rx FIFO receive priority. */ +} flexcan_rx_fifo_config_t; + +/*! @brief FlexCAN Message Buffer transfer. */ +typedef struct _flexcan_mb_transfer +{ + flexcan_frame_t *frame; /*!< The buffer of CAN Message to be transfer. */ + uint8_t mbIdx; /*!< The index of Message buffer used to transfer Message. */ +} flexcan_mb_transfer_t; + +/*! @brief FlexCAN Rx FIFO transfer. */ +typedef struct _flexcan_fifo_transfer +{ + flexcan_frame_t *frame; /*!< The buffer of CAN Message to be received from Rx FIFO. */ +} flexcan_fifo_transfer_t; + +/*! @brief FlexCAN handle structure definition. */ +typedef struct _flexcan_handle flexcan_handle_t; + +/*! @brief FlexCAN transfer callback function. + * + * The FlexCAN transfer callback returns a value from the underlying layer. + * If the status equals to kStatus_FLEXCAN_ErrorStatus, the result parameter is the Content of + * FlexCAN status register which can be used to get the working status(or error status) of FlexCAN module. + * If the status equals to other FlexCAN Message Buffer transfer status, the result is the index of + * Message Buffer that generate transfer event. + * If the status equals to other FlexCAN Message Buffer transfer status, the result is meaningless and should be + * Ignored. + */ +typedef void (*flexcan_transfer_callback_t)( + CAN_Type *base, flexcan_handle_t *handle, status_t status, uint32_t result, void *userData); + +/*! @brief FlexCAN handle structure. */ +struct _flexcan_handle +{ + flexcan_transfer_callback_t callback; /*!< Callback function. */ + void *userData; /*!< FlexCAN callback function parameter.*/ + flexcan_frame_t *volatile mbFrameBuf[CAN_WORD1_COUNT]; + /*!< The buffer for received data from Message Buffers. */ + flexcan_frame_t *volatile rxFifoFrameBuf; /*!< The buffer for received data from Rx FIFO. */ + volatile uint8_t mbState[CAN_WORD1_COUNT]; /*!< Message Buffer transfer state. */ + volatile uint8_t rxFifoState; /*!< Rx FIFO transfer state. */ +}; + +/****************************************************************************** + * API + *****************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name Initialization and deinitialization + * @{ + */ + +/*! + * @brief Initializes a FlexCAN instance. + * + * This function initializes the FlexCAN module with user-defined settings. + * This example shows how to set up the flexcan_config_t parameters and how + * to call the FLEXCAN_Init function by passing in these parameters: + * @code + * flexcan_config_t flexcanConfig; + * flexcanConfig.clkSrc = KFLEXCAN_ClkSrcOsc; + * flexcanConfig.baudRate = 125000U; + * flexcanConfig.maxMbNum = 16; + * flexcanConfig.enableLoopBack = false; + * flexcanConfig.enableSelfWakeup = false; + * flexcanConfig.enableIndividMask = false; + * flexcanConfig.enableDoze = false; + * FLEXCAN_Init(CAN0, &flexcanConfig, 8000000UL); + * @endcode + * + * @param base FlexCAN peripheral base address. + * @param config Pointer to user-defined configuration structure. + * @param sourceClock_Hz FlexCAN Protocol Engine clock source frequency in Hz. + */ +void FLEXCAN_Init(CAN_Type *base, const flexcan_config_t *config, uint32_t sourceClock_Hz); + +/*! + * @brief De-initializes a FlexCAN instance. + * + * This function disable the FlexCAN module clock and set all register value + * to reset value. + * + * @param base FlexCAN peripheral base address. + */ +void FLEXCAN_Deinit(CAN_Type *base); + +/*! + * @brief Get the default configuration structure. + * + * This function initializes the FlexCAN configure structure to default value. The default + * value are: + * flexcanConfig->clkSrc = KFLEXCAN_ClkSrcOsc; + * flexcanConfig->baudRate = 125000U; + * flexcanConfig->maxMbNum = 16; + * flexcanConfig->enableLoopBack = false; + * flexcanConfig->enableSelfWakeup = false; + * flexcanConfig->enableIndividMask = false; + * flexcanConfig->enableDoze = false; + * + * @param config Pointer to FlexCAN configuration structure. + */ +void FLEXCAN_GetDefaultConfig(flexcan_config_t *config); + +/* @} */ + +/*! + * @name Configuration. + * @{ + */ + +/*! + * @brief Sets the FlexCAN protocol timing characteristic. + * + * This function gives user settings to CAN bus timing characteristic. + * The function is for an experienced user. For less experienced users, call + * the FLEXCAN_Init() and fill the baud rate field with a desired value. + * This provides the default timing characteristics to the module. + * + * Note that calling FLEXCAN_SetTimingConfig() overrides the baud rate set + * in FLEXCAN_Init(). + * + * @param base FlexCAN peripheral base address. + * @param config Pointer to the timing configuration structure. + */ +void FLEXCAN_SetTimingConfig(CAN_Type *base, const flexcan_timing_config_t *config); + +/*! + * @brief Sets the FlexCAN receive message buffer global mask. + * + * This function sets the global mask for FlexCAN message buffer in a matching process. + * The configuration is only effective when the Rx individual mask is disabled in the FLEXCAN_Init(). + * + * @param base FlexCAN peripheral base address. + * @param mask Rx Message Buffer Global Mask value. + */ +void FLEXCAN_SetRxMbGlobalMask(CAN_Type *base, uint32_t mask); + +/*! + * @brief Sets the FlexCAN receive FIFO global mask. + * + * This function sets the global mask for FlexCAN FIFO in a matching process. + * + * @param base FlexCAN peripheral base address. + * @param mask Rx Fifo Global Mask value. + */ +void FLEXCAN_SetRxFifoGlobalMask(CAN_Type *base, uint32_t mask); + +/*! + * @brief Sets the FlexCAN receive individual mask. + * + * This function sets the individual mask for FlexCAN matching process. + * The configuration is only effective when the Rx individual mask is enabled in FLEXCAN_Init(). + * If Rx FIFO is disabled, the individual mask is applied to the corresponding Message Buffer. + * If Rx FIFO is enabled, the individual mask for Rx FIFO occupied Message Buffer is applied to + * the Rx Filter with same index. What calls for special attention is that only the first 32 + * individual masks can be used as Rx FIFO filter mask. + * + * @param base FlexCAN peripheral base address. + * @param maskIdx The Index of individual Mask. + * @param mask Rx Individual Mask value. + */ +void FLEXCAN_SetRxIndividualMask(CAN_Type *base, uint8_t maskIdx, uint32_t mask); + +/*! + * @brief Configures a FlexCAN transmit message buffer. + * + * This function aborts the previous transmission, cleans the Message Buffer, and + * configures it as a Transmit Message Buffer. + * + * @param base FlexCAN peripheral base address. + * @param mbIdx The Message Buffer index. + * @param enable Enable/Disable Tx Message Buffer. + * - true: Enable Tx Message Buffer. + * - false: Disable Tx Message Buffer. + */ +void FLEXCAN_SetTxMbConfig(CAN_Type *base, uint8_t mbIdx, bool enable); + +/*! + * @brief Configures a FlexCAN Receive Message Buffer. + * + * This function cleans a FlexCAN build-in Message Buffer and configures it + * as a Receive Message Buffer. + * + * @param base FlexCAN peripheral base address. + * @param mbIdx The Message Buffer index. + * @param config Pointer to FlexCAN Message Buffer configuration structure. + * @param enable Enable/Disable Rx Message Buffer. + * - true: Enable Rx Message Buffer. + * - false: Disable Rx Message Buffer. + */ +void FLEXCAN_SetRxMbConfig(CAN_Type *base, uint8_t mbIdx, const flexcan_rx_mb_config_t *config, bool enable); + +/*! + * @brief Configures the FlexCAN Rx FIFO. + * + * This function configures the Rx FIFO with given Rx FIFO configuration. + * + * @param base FlexCAN peripheral base address. + * @param config Pointer to FlexCAN Rx FIFO configuration structure. + * @param enable Enable/Disable Rx FIFO. + * - true: Enable Rx FIFO. + * - false: Disable Rx FIFO. + */ +void FLEXCAN_SetRxFifoConfig(CAN_Type *base, const flexcan_rx_fifo_config_t *config, bool enable); + +/* @} */ + +/*! + * @name Status + * @{ + */ + +/*! + * @brief Gets the FlexCAN module interrupt flags. + * + * This function gets all FlexCAN status flags. The flags are returned as the logical + * OR value of the enumerators @ref _flexcan_flags. To check the specific status, + * compare the return value with enumerators in @ref _flexcan_flags. + * + * @param base FlexCAN peripheral base address. + * @return FlexCAN status flags which are ORed by the enumerators in the _flexcan_flags. + */ +static inline uint32_t FLEXCAN_GetStatusFlags(CAN_Type *base) +{ + return base->ESR1; +} + +/*! + * @brief Clears status flags with the provided mask. + * + * This function clears the FlexCAN status flags with a provided mask. An automatically cleared flag + * can't be cleared by this function. + * + * @param base FlexCAN peripheral base address. + * @param mask The status flags to be cleared, it is logical OR value of @ref _flexcan_flags. + */ +static inline void FLEXCAN_ClearStatusFlags(CAN_Type *base, uint32_t mask) +{ + /* Write 1 to clear status flag. */ + base->ESR1 = mask; +} + +/*! + * @brief Gets the FlexCAN Bus Error Counter value. + * + * This function gets the FlexCAN Bus Error Counter value for both Tx and + * Rx direction. These values may be needed in the upper layer error handling. + * + * @param base FlexCAN peripheral base address. + * @param txErrBuf Buffer to store Tx Error Counter value. + * @param rxErrBuf Buffer to store Rx Error Counter value. + */ +static inline void FLEXCAN_GetBusErrCount(CAN_Type *base, uint8_t *txErrBuf, uint8_t *rxErrBuf) +{ + if (txErrBuf) + { + *txErrBuf = (uint8_t)((base->ECR & CAN_ECR_TXERRCNT_MASK) >> CAN_ECR_TXERRCNT_SHIFT); + } + + if (rxErrBuf) + { + *rxErrBuf = (uint8_t)((base->ECR & CAN_ECR_RXERRCNT_MASK) >> CAN_ECR_RXERRCNT_SHIFT); + } +} + +/*! + * @brief Gets the FlexCAN Message Buffer interrupt flags. + * + * This function gets the interrupt flags of a given Message Buffers. + * + * @param base FlexCAN peripheral base address. + * @param mask The ORed FlexCAN Message Buffer mask. + * @return The status of given Message Buffers. + */ +#if (defined(FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER)) && (FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER > 0) +static inline uint64_t FLEXCAN_GetMbStatusFlags(CAN_Type *base, uint64_t mask) +#else +static inline uint32_t FLEXCAN_GetMbStatusFlags(CAN_Type *base, uint32_t mask) +#endif +{ +#if (defined(FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER)) && (FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER > 0) + return ((((uint64_t)base->IFLAG1) & mask) | ((((uint64_t)base->IFLAG2) << 32) & mask)); +#else + return (base->IFLAG1 & mask); +#endif +} + +/*! + * @brief Clears the FlexCAN Message Buffer interrupt flags. + * + * This function clears the interrupt flags of a given Message Buffers. + * + * @param base FlexCAN peripheral base address. + * @param mask The ORed FlexCAN Message Buffer mask. + */ +#if (defined(FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER)) && (FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER > 0) +static inline void FLEXCAN_ClearMbStatusFlags(CAN_Type *base, uint64_t mask) +#else +static inline void FLEXCAN_ClearMbStatusFlags(CAN_Type *base, uint32_t mask) +#endif +{ +#if (defined(FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER)) && (FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER > 0) + base->IFLAG1 = (uint32_t)(mask & 0xFFFFFFFF); + base->IFLAG2 = (uint32_t)(mask >> 32); +#else + base->IFLAG1 = mask; +#endif +} + +/* @} */ + +/*! + * @name Interrupts + * @{ + */ + +/*! + * @brief Enables FlexCAN interrupts according to provided mask. + * + * This function enables the FlexCAN interrupts according to provided mask. The mask + * is a logical OR of enumeration members, see @ref _flexcan_interrupt_enable. + * + * @param base FlexCAN peripheral base address. + * @param mask The interrupts to enable. Logical OR of @ref _flexcan_interrupt_enable. + */ +static inline void FLEXCAN_EnableInterrupts(CAN_Type *base, uint32_t mask) +{ + /* Solve Wake Up Interrupt. */ + if (mask & kFLEXCAN_WakeUpInterruptEnable) + { + base->MCR |= CAN_MCR_WAKMSK_MASK; + } + + /* Solve others. */ + base->CTRL1 |= (mask & (~((uint32_t)kFLEXCAN_WakeUpInterruptEnable))); +} + +/*! + * @brief Disables FlexCAN interrupts according to provided mask. + * + * This function disables the FlexCAN interrupts according to provided mask. The mask + * is a logical OR of enumeration members, see @ref _flexcan_interrupt_enable. + * + * @param base FlexCAN peripheral base address. + * @param mask The interrupts to disable. Logical OR of @ref _flexcan_interrupt_enable. + */ +static inline void FLEXCAN_DisableInterrupts(CAN_Type *base, uint32_t mask) +{ + /* Solve Wake Up Interrupt. */ + if (mask & kFLEXCAN_WakeUpInterruptEnable) + { + base->MCR &= ~CAN_MCR_WAKMSK_MASK; + } + + /* Solve others. */ + base->CTRL1 &= ~(mask & (~((uint32_t)kFLEXCAN_WakeUpInterruptEnable))); +} + +/*! + * @brief Enables FlexCAN Message Buffer interrupts. + * + * This function enables the interrupts of given Message Buffers + * + * @param base FlexCAN peripheral base address. + * @param mask The ORed FlexCAN Message Buffer mask. + */ +#if (defined(FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER)) && (FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER > 0) +static inline void FLEXCAN_EnableMbInterrupts(CAN_Type *base, uint64_t mask) +#else +static inline void FLEXCAN_EnableMbInterrupts(CAN_Type *base, uint32_t mask) +#endif +{ +#if (defined(FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER)) && (FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER > 0) + base->IMASK1 |= (uint32_t)(mask & 0xFFFFFFFF); + base->IMASK2 |= (uint32_t)(mask >> 32); +#else + base->IMASK1 |= mask; +#endif +} + +/*! + * @brief Disables FlexCAN Message Buffer interrupts. + * + * This function disables the interrupts of given Message Buffers + * + * @param base FlexCAN peripheral base address. + * @param mask The ORed FlexCAN Message Buffer mask. + */ +#if (defined(FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER)) && (FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER > 0) +static inline void FLEXCAN_DisableMbInterrupts(CAN_Type *base, uint64_t mask) +#else +static inline void FLEXCAN_DisableMbInterrupts(CAN_Type *base, uint32_t mask) +#endif +{ +#if (defined(FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER)) && (FSL_FEATURE_FLEXCAN_HAS_EXTENDED_FLAG_REGISTER > 0) + base->IMASK1 &= ~((uint32_t)(mask & 0xFFFFFFFF)); + base->IMASK2 &= ~((uint32_t)(mask >> 32)); +#else + base->IMASK1 &= ~mask; +#endif +} + +/* @} */ + +#if (defined(FSL_FEATURE_FLEXCAN_HAS_RX_FIFO_DMA) && FSL_FEATURE_FLEXCAN_HAS_RX_FIFO_DMA) +/*! + * @name DMA Control + * @{ + */ + +/*! + * @brief Enables or disables the FlexCAN Rx FIFO DMA request. + * + * This function enables or disables the DMA feature of FlexCAN build-in Rx FIFO. + * + * @param base FlexCAN peripheral base address. + * @param enable true to enable, false to disable. + */ +void FLEXCAN_EnableRxFifoDMA(CAN_Type *base, bool enable); + +/*! + * @brief Gets the Rx FIFO Head address. + * + * This function returns the FlexCAN Rx FIFO Head address, which is mainly used for the DMA/eDMA use case. + * + * @param base FlexCAN peripheral base address. + * @return FlexCAN Rx FIFO Head address. + */ +static inline uint32_t FLEXCAN_GetRxFifoHeadAddr(CAN_Type *base) +{ + return (uint32_t) & (base->MB[0].CS); +} + +/* @} */ +#endif /* FSL_FEATURE_FLEXCAN_HAS_RX_FIFO_DMA */ + +/*! + * @name Bus Operations + * @{ + */ + +/*! + * @brief Enables or disables the FlexCAN module operation. + * + * This function enables or disables the FlexCAN module. + * + * @param base FlexCAN base pointer. + * @param enable true to enable, false to disable. + */ +static inline void FLEXCAN_Enable(CAN_Type *base, bool enable) +{ + if (enable) + { + base->MCR &= ~CAN_MCR_MDIS_MASK; + + /* Wait FlexCAN exit from low-power mode. */ + while (base->MCR & CAN_MCR_LPMACK_MASK) + { + } + } + else + { + base->MCR |= CAN_MCR_MDIS_MASK; + + /* Wait FlexCAN enter low-power mode. */ + while (!(base->MCR & CAN_MCR_LPMACK_MASK)) + { + } + } +} + +/*! + * @brief Writes a FlexCAN Message to Transmit Message Buffer. + * + * This function writes a CAN Message to the specified Transmit Message Buffer + * and changes the Message Buffer state to start CAN Message transmit. After + * that the function returns immediately. + * + * @param base FlexCAN peripheral base address. + * @param mbIdx The FlexCAN Message Buffer index. + * @param txFrame Pointer to CAN message frame to be sent. + * @retval kStatus_Success - Write Tx Message Buffer Successfully. + * @retval kStatus_Fail - Tx Message Buffer is currently in use. + */ +status_t FLEXCAN_WriteTxMb(CAN_Type *base, uint8_t mbIdx, const flexcan_frame_t *txFrame); + +/*! + * @brief Reads a FlexCAN Message from Receive Message Buffer. + * + * This function reads a CAN message from a specified Receive Message Buffer. + * The function fills a receive CAN message frame structure with + * just received data and activates the Message Buffer again. + * The function returns immediately. + * + * @param base FlexCAN peripheral base address. + * @param mbIdx The FlexCAN Message Buffer index. + * @param rxFrame Pointer to CAN message frame structure for reception. + * @retval kStatus_Success - Rx Message Buffer is full and has been read successfully. + * @retval kStatus_FLEXCAN_RxOverflow - Rx Message Buffer is already overflowed and has been read successfully. + * @retval kStatus_Fail - Rx Message Buffer is empty. + */ +status_t FLEXCAN_ReadRxMb(CAN_Type *base, uint8_t mbIdx, flexcan_frame_t *rxFrame); + +/*! + * @brief Reads a FlexCAN Message from Rx FIFO. + * + * This function reads a CAN message from the FlexCAN build-in Rx FIFO. + * + * @param base FlexCAN peripheral base address. + * @param rxFrame Pointer to CAN message frame structure for reception. + * @retval kStatus_Success - Read Message from Rx FIFO successfully. + * @retval kStatus_Fail - Rx FIFO is not enabled. + */ +status_t FLEXCAN_ReadRxFifo(CAN_Type *base, flexcan_frame_t *rxFrame); + +/* @} */ + +/*! + * @name Transactional + * @{ + */ + +/*! + * @brief Performs a polling send transaction on the CAN bus. + * + * Note that a transfer handle does not need to be created before calling this API. + * + * @param base FlexCAN peripheral base pointer. + * @param mbIdx The FlexCAN Message Buffer index. + * @param txFrame Pointer to CAN message frame to be sent. + * @retval kStatus_Success - Write Tx Message Buffer Successfully. + * @retval kStatus_Fail - Tx Message Buffer is currently in use. + */ +status_t FLEXCAN_TransferSendBlocking(CAN_Type *base, uint8_t mbIdx, flexcan_frame_t *txFrame); + +/*! + * @brief Performs a polling receive transaction on the CAN bus. + * + * Note that a transfer handle does not need to be created before calling this API. + * + * @param base FlexCAN peripheral base pointer. + * @param mbIdx The FlexCAN Message Buffer index. + * @param rxFrame Pointer to CAN message frame structure for reception. + * @retval kStatus_Success - Rx Message Buffer is full and has been read successfully. + * @retval kStatus_FLEXCAN_RxOverflow - Rx Message Buffer is already overflowed and has been read successfully. + * @retval kStatus_Fail - Rx Message Buffer is empty. + */ +status_t FLEXCAN_TransferReceiveBlocking(CAN_Type *base, uint8_t mbIdx, flexcan_frame_t *rxFrame); + +/*! + * @brief Performs a polling receive transaction from Rx FIFO on the CAN bus. + * + * Note that a transfer handle does not need to be created before calling this API. + * + * @param base FlexCAN peripheral base pointer. + * @param rxFrame Pointer to CAN message frame structure for reception. + * @retval kStatus_Success - Read Message from Rx FIFO successfully. + * @retval kStatus_Fail - Rx FIFO is not enabled. + */ +status_t FLEXCAN_TransferReceiveFifoBlocking(CAN_Type *base, flexcan_frame_t *rxFrame); + +/*! + * @brief Initializes the FlexCAN handle. + * + * This function initializes the FlexCAN handle which can be used for other FlexCAN + * transactional APIs. Usually, for a specified FlexCAN instance, + * call this API once to get the initialized handle. + * + * @param base FlexCAN peripheral base address. + * @param handle FlexCAN handle pointer. + * @param callback The callback function. + * @param userData The parameter of the callback function. + */ +void FLEXCAN_TransferCreateHandle(CAN_Type *base, + flexcan_handle_t *handle, + flexcan_transfer_callback_t callback, + void *userData); + +/*! + * @brief Sends a message using IRQ. + * + * This function sends a message using IRQ. This is a non-blocking function, which returns + * right away. When messages have been sent out, the send callback function is called. + * + * @param base FlexCAN peripheral base address. + * @param handle FlexCAN handle pointer. + * @param xfer FlexCAN Message Buffer transfer structure. See the #flexcan_mb_transfer_t. + * @retval kStatus_Success Start Tx Message Buffer sending process successfully. + * @retval kStatus_Fail Write Tx Message Buffer failed. + * @retval kStatus_FLEXCAN_TxBusy Tx Message Buffer is in use. + */ +status_t FLEXCAN_TransferSendNonBlocking(CAN_Type *base, flexcan_handle_t *handle, flexcan_mb_transfer_t *xfer); + +/*! + * @brief Receives a message using IRQ. + * + * This function receives a message using IRQ. This is non-blocking function, which returns + * right away. When the message has been received, the receive callback function is called. + * + * @param base FlexCAN peripheral base address. + * @param handle FlexCAN handle pointer. + * @param xfer FlexCAN Message Buffer transfer structure. See the #flexcan_mb_transfer_t. + * @retval kStatus_Success - Start Rx Message Buffer receiving process successfully. + * @retval kStatus_FLEXCAN_RxBusy - Rx Message Buffer is in use. + */ +status_t FLEXCAN_TransferReceiveNonBlocking(CAN_Type *base, flexcan_handle_t *handle, flexcan_mb_transfer_t *xfer); + +/*! + * @brief Receives a message from Rx FIFO using IRQ. + * + * This function receives a message using IRQ. This is a non-blocking function, which returns + * right away. When all messages have been received, the receive callback function is called. + * + * @param base FlexCAN peripheral base address. + * @param handle FlexCAN handle pointer. + * @param xfer FlexCAN Rx FIFO transfer structure. See the @ref flexcan_fifo_transfer_t. + * @retval kStatus_Success - Start Rx FIFO receiving process successfully. + * @retval kStatus_FLEXCAN_RxFifoBusy - Rx FIFO is currently in use. + */ +status_t FLEXCAN_TransferReceiveFifoNonBlocking(CAN_Type *base, + flexcan_handle_t *handle, + flexcan_fifo_transfer_t *xfer); + +/*! + * @brief Aborts the interrupt driven message send process. + * + * This function aborts the interrupt driven message send process. + * + * @param base FlexCAN peripheral base address. + * @param handle FlexCAN handle pointer. + * @param mbIdx The FlexCAN Message Buffer index. + */ +void FLEXCAN_TransferAbortSend(CAN_Type *base, flexcan_handle_t *handle, uint8_t mbIdx); + +/*! + * @brief Aborts the interrupt driven message receive process. + * + * This function aborts the interrupt driven message receive process. + * + * @param base FlexCAN peripheral base address. + * @param handle FlexCAN handle pointer. + * @param mbIdx The FlexCAN Message Buffer index. + */ +void FLEXCAN_TransferAbortReceive(CAN_Type *base, flexcan_handle_t *handle, uint8_t mbIdx); + +/*! + * @brief Aborts the interrupt driven message receive from Rx FIFO process. + * + * This function aborts the interrupt driven message receive from Rx FIFO process. + * + * @param base FlexCAN peripheral base address. + * @param handle FlexCAN handle pointer. + */ +void FLEXCAN_TransferAbortReceiveFifo(CAN_Type *base, flexcan_handle_t *handle); + +/*! + * @brief FlexCAN IRQ handle function. + * + * This function handles the FlexCAN Error, the Message Buffer, and the Rx FIFO IRQ request. + * + * @param base FlexCAN peripheral base address. + * @param handle FlexCAN handle pointer. + */ +void FLEXCAN_TransferHandleIRQ(CAN_Type *base, flexcan_handle_t *handle); + +/* @} */ + +#if defined(__cplusplus) +} +#endif + +/*! @}*/ + +#endif /* _FSL_FLEXCAN_H_ */ diff --git a/drivers/fsl_ftm.c b/drivers/fsl_ftm.c new file mode 100644 index 0000000..85dc219 --- /dev/null +++ b/drivers/fsl_ftm.c @@ -0,0 +1,896 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_ftm.h" + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Gets the instance from the base address + * + * @param base FTM peripheral base address + * + * @return The FTM instance + */ +static uint32_t FTM_GetInstance(FTM_Type *base); + +/*! + * @brief Sets the FTM register PWM synchronization method + * + * This function will set the necessary bits for the PWM synchronization mode that + * user wishes to use. + * + * @param base FTM peripheral base address + * @param syncMethod Syncronization methods to use to update buffered registers. This is a logical + * OR of members of the enumeration ::ftm_pwm_sync_method_t + */ +static void FTM_SetPwmSync(FTM_Type *base, uint32_t syncMethod); + +/*! + * @brief Sets the reload points used as loading points for register update + * + * This function will set the necessary bits based on what the user wishes to use as loading + * points for FTM register update. When using this it is not required to use PWM synchnronization. + * + * @param base FTM peripheral base address + * @param reloadPoints FTM reload points. This is a logical OR of members of the + * enumeration ::ftm_reload_point_t + */ +static void FTM_SetReloadPoints(FTM_Type *base, uint32_t reloadPoints); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/*! @brief Pointers to FTM bases for each instance. */ +static FTM_Type *const s_ftmBases[] = FTM_BASE_PTRS; + +/*! @brief Pointers to FTM clocks for each instance. */ +static const clock_ip_name_t s_ftmClocks[] = FTM_CLOCKS; + +/******************************************************************************* + * Code + ******************************************************************************/ +static uint32_t FTM_GetInstance(FTM_Type *base) +{ + uint32_t instance; + uint32_t ftmArrayCount = (sizeof(s_ftmBases) / sizeof(s_ftmBases[0])); + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < ftmArrayCount; instance++) + { + if (s_ftmBases[instance] == base) + { + break; + } + } + + assert(instance < ftmArrayCount); + + return instance; +} + +static void FTM_SetPwmSync(FTM_Type *base, uint32_t syncMethod) +{ + uint8_t chnlNumber = 0; + uint32_t reg = 0, syncReg = 0; + + syncReg = base->SYNC; + /* Enable PWM synchronization of output mask register */ + syncReg |= FTM_SYNC_SYNCHOM_MASK; + + reg = base->COMBINE; + for (chnlNumber = 0; chnlNumber < (FSL_FEATURE_FTM_CHANNEL_COUNTn(base) / 2); chnlNumber++) + { + /* Enable PWM synchronization of registers C(n)V and C(n+1)V */ + reg |= (1U << (FTM_COMBINE_SYNCEN0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * chnlNumber))); + } + base->COMBINE = reg; + + reg = base->SYNCONF; + + /* Use enhanced PWM synchronization method. Use PWM sync to update register values */ + reg |= (FTM_SYNCONF_SYNCMODE_MASK | FTM_SYNCONF_CNTINC_MASK | FTM_SYNCONF_INVC_MASK | FTM_SYNCONF_SWOC_MASK); + + if (syncMethod & FTM_SYNC_SWSYNC_MASK) + { + /* Enable needed bits for software trigger to update registers with its buffer value */ + reg |= (FTM_SYNCONF_SWRSTCNT_MASK | FTM_SYNCONF_SWWRBUF_MASK | FTM_SYNCONF_SWINVC_MASK | + FTM_SYNCONF_SWSOC_MASK | FTM_SYNCONF_SWOM_MASK); + } + + if (syncMethod & (FTM_SYNC_TRIG0_MASK | FTM_SYNC_TRIG1_MASK | FTM_SYNC_TRIG2_MASK)) + { + /* Enable needed bits for hardware trigger to update registers with its buffer value */ + reg |= (FTM_SYNCONF_HWRSTCNT_MASK | FTM_SYNCONF_HWWRBUF_MASK | FTM_SYNCONF_HWINVC_MASK | + FTM_SYNCONF_HWSOC_MASK | FTM_SYNCONF_HWOM_MASK); + + /* Enable the appropriate hardware trigger that is used for PWM sync */ + if (syncMethod & FTM_SYNC_TRIG0_MASK) + { + syncReg |= FTM_SYNC_TRIG0_MASK; + } + if (syncMethod & FTM_SYNC_TRIG1_MASK) + { + syncReg |= FTM_SYNC_TRIG1_MASK; + } + if (syncMethod & FTM_SYNC_TRIG2_MASK) + { + syncReg |= FTM_SYNC_TRIG2_MASK; + } + } + + /* Write back values to the SYNC register */ + base->SYNC = syncReg; + + /* Write the PWM synch values to the SYNCONF register */ + base->SYNCONF = reg; +} + +static void FTM_SetReloadPoints(FTM_Type *base, uint32_t reloadPoints) +{ + uint32_t chnlNumber = 0; + uint32_t reg = 0; + + /* Need CNTINC bit to be 1 for CNTIN register to update with its buffer value on reload */ + base->SYNCONF |= FTM_SYNCONF_CNTINC_MASK; + + reg = base->COMBINE; + for (chnlNumber = 0; chnlNumber < (FSL_FEATURE_FTM_CHANNEL_COUNTn(base) / 2); chnlNumber++) + { + /* Need SYNCEN bit to be 1 for CnV reg to update with its buffer value on reload */ + reg |= (1U << (FTM_COMBINE_SYNCEN0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * chnlNumber))); + } + base->COMBINE = reg; + + /* Set the reload points */ + reg = base->PWMLOAD; + + /* Enable the selected channel match reload points */ + reg &= ~((1U << FSL_FEATURE_FTM_CHANNEL_COUNTn(base)) - 1); + reg |= (reloadPoints & ((1U << FSL_FEATURE_FTM_CHANNEL_COUNTn(base)) - 1)); + +#if defined(FSL_FEATURE_FTM_HAS_HALFCYCLE_RELOAD) && (FSL_FEATURE_FTM_HAS_HALFCYCLE_RELOAD) + /* Enable half cycle match as a reload point */ + if (reloadPoints & kFTM_HalfCycMatch) + { + reg |= FTM_PWMLOAD_HCSEL_MASK; + } + else + { + reg &= ~FTM_PWMLOAD_HCSEL_MASK; + } +#endif /* FSL_FEATURE_FTM_HAS_HALFCYCLE_RELOAD */ + + base->PWMLOAD = reg; + + /* These reload points are used when counter is in up-down counting mode */ + reg = base->SYNC; + if (reloadPoints & kFTM_CntMax) + { + /* Reload when counter turns from up to down */ + reg |= FTM_SYNC_CNTMAX_MASK; + } + else + { + reg &= ~FTM_SYNC_CNTMAX_MASK; + } + + if (reloadPoints & kFTM_CntMin) + { + /* Reload when counter turns from down to up */ + reg |= FTM_SYNC_CNTMIN_MASK; + } + else + { + reg &= ~FTM_SYNC_CNTMIN_MASK; + } + base->SYNC = reg; +} + +status_t FTM_Init(FTM_Type *base, const ftm_config_t *config) +{ + assert(config); + + uint32_t reg; + + if (!(config->pwmSyncMode & + (FTM_SYNC_TRIG0_MASK | FTM_SYNC_TRIG1_MASK | FTM_SYNC_TRIG2_MASK | FTM_SYNC_SWSYNC_MASK))) + { + /* Invalid PWM sync mode */ + return kStatus_Fail; + } + + /* Ungate the FTM clock*/ + CLOCK_EnableClock(s_ftmClocks[FTM_GetInstance(base)]); + + /* Configure the fault mode, enable FTM mode and disable write protection */ + base->MODE = FTM_MODE_FAULTM(config->faultMode) | FTM_MODE_FTMEN_MASK | FTM_MODE_WPDIS_MASK; + + /* Configure the update mechanism for buffered registers */ + FTM_SetPwmSync(base, config->pwmSyncMode); + + /* Setup intermediate register reload points */ + FTM_SetReloadPoints(base, config->reloadPoints); + + /* Set the clock prescale factor */ + base->SC = FTM_SC_PS(config->prescale); + + /* Setup the counter operation */ + base->CONF = (FTM_CONF_BDMMODE(config->bdmMode) | FTM_CONF_GTBEEN(config->useGlobalTimeBase)); + + /* Initial state of channel output */ + base->OUTINIT = config->chnlInitState; + + /* Channel polarity */ + base->POL = config->chnlPolarity; + + /* Set the external trigger sources */ + base->EXTTRIG = config->extTriggers; +#if defined(FSL_FEATURE_FTM_HAS_RELOAD_INITIALIZATION_TRIGGER) && (FSL_FEATURE_FTM_HAS_RELOAD_INITIALIZATION_TRIGGER) + if (config->extTriggers & kFTM_ReloadInitTrigger) + { + base->CONF |= FTM_CONF_ITRIGR_MASK; + } + else + { + base->CONF &= ~FTM_CONF_ITRIGR_MASK; + } +#endif /* FSL_FEATURE_FTM_HAS_RELOAD_INITIALIZATION_TRIGGER */ + + /* FTM deadtime insertion control */ + base->DEADTIME = (FTM_DEADTIME_DTPS(config->deadTimePrescale) | FTM_DEADTIME_DTVAL(config->deadTimeValue)); + + /* FTM fault filter value */ + reg = base->FLTCTRL; + reg &= ~FTM_FLTCTRL_FFVAL_MASK; + reg |= FTM_FLTCTRL_FFVAL(config->faultFilterValue); + base->FLTCTRL = reg; + + return kStatus_Success; +} + +void FTM_Deinit(FTM_Type *base) +{ + /* Set clock source to none to disable counter */ + base->SC &= ~(FTM_SC_CLKS_MASK); + + /* Gate the FTM clock */ + CLOCK_DisableClock(s_ftmClocks[FTM_GetInstance(base)]); +} + +void FTM_GetDefaultConfig(ftm_config_t *config) +{ + assert(config); + + /* Divide FTM clock by 1 */ + config->prescale = kFTM_Prescale_Divide_1; + /* FTM behavior in BDM mode */ + config->bdmMode = kFTM_BdmMode_0; + /* Software trigger will be used to update registers */ + config->pwmSyncMode = kFTM_SoftwareTrigger; + /* No intermediate register load */ + config->reloadPoints = 0; + /* Fault control disabled for all channels */ + config->faultMode = kFTM_Fault_Disable; + /* Disable the fault filter */ + config->faultFilterValue = 0; + /* Divide the system clock by 1 */ + config->deadTimePrescale = kFTM_Deadtime_Prescale_1; + /* No counts are inserted */ + config->deadTimeValue = 0; + /* No external trigger */ + config->extTriggers = 0; + /* Initialization value is 0 for all channels */ + config->chnlInitState = 0; + /* Active high polarity for all channels */ + config->chnlPolarity = 0; + /* Use internal FTM counter as timebase */ + config->useGlobalTimeBase = false; +} + +status_t FTM_SetupPwm(FTM_Type *base, + const ftm_chnl_pwm_signal_param_t *chnlParams, + uint8_t numOfChnls, + ftm_pwm_mode_t mode, + uint32_t pwmFreq_Hz, + uint32_t srcClock_Hz) +{ + assert(chnlParams); + assert(srcClock_Hz); + assert(pwmFreq_Hz); + assert(numOfChnls); + + uint32_t mod, reg; + uint32_t ftmClock = (srcClock_Hz / (1U << (base->SC & FTM_SC_PS_MASK))); + uint16_t cnv, cnvFirstEdge; + uint8_t i; + + switch (mode) + { + case kFTM_EdgeAlignedPwm: + case kFTM_CombinedPwm: + base->SC &= ~FTM_SC_CPWMS_MASK; + mod = (ftmClock / pwmFreq_Hz) - 1; + break; + case kFTM_CenterAlignedPwm: + base->SC |= FTM_SC_CPWMS_MASK; + mod = ftmClock / (pwmFreq_Hz * 2); + break; + default: + return kStatus_Fail; + } + + /* Return an error in case we overflow the registers, probably would require changing + * clock source to get the desired frequency */ + if (mod > 65535U) + { + return kStatus_Fail; + } + /* Set the PWM period */ + base->MOD = mod; + + /* Setup each FTM channel */ + for (i = 0; i < numOfChnls; i++) + { + /* Return error if requested dutycycle is greater than the max allowed */ + if (chnlParams->dutyCyclePercent > 100) + { + return kStatus_Fail; + } + + if ((mode == kFTM_EdgeAlignedPwm) || (mode == kFTM_CenterAlignedPwm)) + { + /* Clear the current mode and edge level bits */ + reg = base->CONTROLS[chnlParams->chnlNumber].CnSC; + reg &= ~(FTM_CnSC_MSA_MASK | FTM_CnSC_MSB_MASK | FTM_CnSC_ELSA_MASK | FTM_CnSC_ELSB_MASK); + + /* Setup the active level */ + reg |= (uint32_t)(chnlParams->level << FTM_CnSC_ELSA_SHIFT); + + /* Edge-aligned mode needs MSB to be 1, don't care for Center-aligned mode */ + reg |= FTM_CnSC_MSB(1U); + + /* Update the mode and edge level */ + base->CONTROLS[chnlParams->chnlNumber].CnSC = reg; + + if (chnlParams->dutyCyclePercent == 0) + { + /* Signal stays low */ + cnv = 0; + } + else + { + cnv = (mod * chnlParams->dutyCyclePercent) / 100; + /* For 100% duty cycle */ + if (cnv >= mod) + { + cnv = mod + 1; + } + } + + base->CONTROLS[chnlParams->chnlNumber].CnV = cnv; +#if defined(FSL_FEATURE_FTM_HAS_ENABLE_PWM_OUTPUT) && (FSL_FEATURE_FTM_HAS_ENABLE_PWM_OUTPUT) + /* Set to output mode */ + FTM_SetPwmOutputEnable(base, chnlParams->chnlNumber, true); +#endif + } + else + { + /* This check is added for combined mode as the channel number should be the pair number */ + if (chnlParams->chnlNumber >= (FSL_FEATURE_FTM_CHANNEL_COUNTn(base) / 2)) + { + return kStatus_Fail; + } + + /* Return error if requested value is greater than the max allowed */ + if (chnlParams->firstEdgeDelayPercent > 100) + { + return kStatus_Fail; + } + + /* Configure delay of the first edge */ + if (chnlParams->firstEdgeDelayPercent == 0) + { + /* No delay for the first edge */ + cnvFirstEdge = 0; + } + else + { + cnvFirstEdge = (mod * chnlParams->firstEdgeDelayPercent) / 100; + } + + /* Configure dutycycle */ + if (chnlParams->dutyCyclePercent == 0) + { + /* Signal stays low */ + cnv = 0; + cnvFirstEdge = 0; + } + else + { + cnv = (mod * chnlParams->dutyCyclePercent) / 100; + /* For 100% duty cycle */ + if (cnv >= mod) + { + cnv = mod + 1; + } + } + + /* Clear the current mode and edge level bits for channel n */ + reg = base->CONTROLS[chnlParams->chnlNumber * 2].CnSC; + reg &= ~(FTM_CnSC_MSA_MASK | FTM_CnSC_MSB_MASK | FTM_CnSC_ELSA_MASK | FTM_CnSC_ELSB_MASK); + + /* Setup the active level for channel n */ + reg |= (uint32_t)(chnlParams->level << FTM_CnSC_ELSA_SHIFT); + + /* Update the mode and edge level for channel n */ + base->CONTROLS[chnlParams->chnlNumber * 2].CnSC = reg; + + /* Clear the current mode and edge level bits for channel n + 1 */ + reg = base->CONTROLS[(chnlParams->chnlNumber * 2) + 1].CnSC; + reg &= ~(FTM_CnSC_MSA_MASK | FTM_CnSC_MSB_MASK | FTM_CnSC_ELSA_MASK | FTM_CnSC_ELSB_MASK); + + /* Setup the active level for channel n + 1 */ + reg |= (uint32_t)(chnlParams->level << FTM_CnSC_ELSA_SHIFT); + + /* Update the mode and edge level for channel n + 1*/ + base->CONTROLS[(chnlParams->chnlNumber * 2) + 1].CnSC = reg; + + /* Set the combine bit for the channel pair */ + base->COMBINE |= + (1U << (FTM_COMBINE_COMBINE0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * chnlParams->chnlNumber))); + + /* Set the channel pair values */ + base->CONTROLS[chnlParams->chnlNumber * 2].CnV = cnvFirstEdge; + base->CONTROLS[(chnlParams->chnlNumber * 2) + 1].CnV = cnvFirstEdge + cnv; + +#if defined(FSL_FEATURE_FTM_HAS_ENABLE_PWM_OUTPUT) && (FSL_FEATURE_FTM_HAS_ENABLE_PWM_OUTPUT) + /* Set to output mode */ + FTM_SetPwmOutputEnable(base, (ftm_chnl_t)((uint8_t)chnlParams->chnlNumber * 2), true); + FTM_SetPwmOutputEnable(base, (ftm_chnl_t)((uint8_t)chnlParams->chnlNumber * 2 + 1), true); +#endif + } + chnlParams++; + } + + return kStatus_Success; +} + +void FTM_UpdatePwmDutycycle(FTM_Type *base, + ftm_chnl_t chnlNumber, + ftm_pwm_mode_t currentPwmMode, + uint8_t dutyCyclePercent) +{ + uint16_t cnv, cnvFirstEdge = 0, mod; + + mod = base->MOD; + if ((currentPwmMode == kFTM_EdgeAlignedPwm) || (currentPwmMode == kFTM_CenterAlignedPwm)) + { + cnv = (mod * dutyCyclePercent) / 100; + /* For 100% duty cycle */ + if (cnv >= mod) + { + cnv = mod + 1; + } + base->CONTROLS[chnlNumber].CnV = cnv; + } + else + { + /* This check is added for combined mode as the channel number should be the pair number */ + if (chnlNumber >= (FSL_FEATURE_FTM_CHANNEL_COUNTn(base) / 2)) + { + return; + } + + cnv = (mod * dutyCyclePercent) / 100; + cnvFirstEdge = base->CONTROLS[chnlNumber * 2].CnV; + /* For 100% duty cycle */ + if (cnv >= mod) + { + cnv = mod + 1; + } + base->CONTROLS[(chnlNumber * 2) + 1].CnV = cnvFirstEdge + cnv; + } +} + +void FTM_UpdateChnlEdgeLevelSelect(FTM_Type *base, ftm_chnl_t chnlNumber, uint8_t level) +{ + uint32_t reg = base->CONTROLS[chnlNumber].CnSC; + + /* Clear the field and write the new level value */ + reg &= ~(FTM_CnSC_ELSA_MASK | FTM_CnSC_ELSB_MASK); + reg |= ((uint32_t)level << FTM_CnSC_ELSA_SHIFT) & (FTM_CnSC_ELSA_MASK | FTM_CnSC_ELSB_MASK); + + base->CONTROLS[chnlNumber].CnSC = reg; +} + +void FTM_SetupInputCapture(FTM_Type *base, + ftm_chnl_t chnlNumber, + ftm_input_capture_edge_t captureMode, + uint32_t filterValue) +{ + uint32_t reg; + + /* Clear the combine bit for the channel pair */ + base->COMBINE &= ~(1U << (FTM_COMBINE_COMBINE0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * (chnlNumber >> 1)))); + /* Clear the dual edge capture mode because it's it's higher priority */ + base->COMBINE &= ~(1U << (FTM_COMBINE_DECAPEN0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * (chnlNumber >> 1)))); + /* Clear the quadrature decoder mode beacause it's higher priority */ + base->QDCTRL &= ~FTM_QDCTRL_QUADEN_MASK; + + reg = base->CONTROLS[chnlNumber].CnSC; + reg &= ~(FTM_CnSC_MSA_MASK | FTM_CnSC_MSB_MASK | FTM_CnSC_ELSA_MASK | FTM_CnSC_ELSB_MASK); + reg |= captureMode; + + /* Set the requested input capture mode */ + base->CONTROLS[chnlNumber].CnSC = reg; + /* Input filter available only for channels 0, 1, 2, 3 */ + if (chnlNumber < kFTM_Chnl_4) + { + reg = base->FILTER; + reg &= ~(FTM_FILTER_CH0FVAL_MASK << (FTM_FILTER_CH1FVAL_SHIFT * chnlNumber)); + reg |= (filterValue << (FTM_FILTER_CH1FVAL_SHIFT * chnlNumber)); + base->FILTER = reg; + } +#if defined(FSL_FEATURE_FTM_HAS_ENABLE_PWM_OUTPUT) && (FSL_FEATURE_FTM_HAS_ENABLE_PWM_OUTPUT) + /* Set to input mode */ + FTM_SetPwmOutputEnable(base, chnlNumber, false); +#endif +} + +void FTM_SetupOutputCompare(FTM_Type *base, + ftm_chnl_t chnlNumber, + ftm_output_compare_mode_t compareMode, + uint32_t compareValue) +{ + uint32_t reg; + + /* Clear the combine bit for the channel pair */ + base->COMBINE &= ~(1U << (FTM_COMBINE_COMBINE0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * (chnlNumber >> 1)))); + /* Clear the dual edge capture mode because it's it's higher priority */ + base->COMBINE &= ~(1U << (FTM_COMBINE_DECAPEN0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * (chnlNumber >> 1)))); + /* Clear the quadrature decoder mode beacause it's higher priority */ + base->QDCTRL &= ~FTM_QDCTRL_QUADEN_MASK; + + reg = base->CONTROLS[chnlNumber].CnSC; + reg &= ~(FTM_CnSC_MSA_MASK | FTM_CnSC_MSB_MASK | FTM_CnSC_ELSA_MASK | FTM_CnSC_ELSB_MASK); + reg |= compareMode; + /* Setup the channel output behaviour when a match occurs with the compare value */ + base->CONTROLS[chnlNumber].CnSC = reg; + + /* Set output on match to the requested level */ + base->CONTROLS[chnlNumber].CnV = compareValue; + +#if defined(FSL_FEATURE_FTM_HAS_ENABLE_PWM_OUTPUT) && (FSL_FEATURE_FTM_HAS_ENABLE_PWM_OUTPUT) + /* Set to output mode */ + FTM_SetPwmOutputEnable(base, chnlNumber, true); +#endif +} + +void FTM_SetupDualEdgeCapture(FTM_Type *base, + ftm_chnl_t chnlPairNumber, + const ftm_dual_edge_capture_param_t *edgeParam, + uint32_t filterValue) +{ + assert(edgeParam); + + uint32_t reg; + + reg = base->COMBINE; + /* Clear the combine bit for the channel pair */ + reg &= ~(1U << (FTM_COMBINE_COMBINE0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * chnlPairNumber))); + /* Enable the DECAPEN bit */ + reg |= (1U << (FTM_COMBINE_DECAPEN0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * chnlPairNumber))); + reg |= (1U << (FTM_COMBINE_DECAP0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * chnlPairNumber))); + base->COMBINE = reg; + + /* Setup the edge detection from channel n and n + 1 */ + reg = base->CONTROLS[chnlPairNumber * 2].CnSC; + reg &= ~(FTM_CnSC_MSA_MASK | FTM_CnSC_MSB_MASK | FTM_CnSC_ELSA_MASK | FTM_CnSC_ELSB_MASK); + reg |= ((uint32_t)edgeParam->mode | (uint32_t)edgeParam->currChanEdgeMode); + base->CONTROLS[chnlPairNumber * 2].CnSC = reg; + + reg = base->CONTROLS[(chnlPairNumber * 2) + 1].CnSC; + reg &= ~(FTM_CnSC_MSA_MASK | FTM_CnSC_MSB_MASK | FTM_CnSC_ELSA_MASK | FTM_CnSC_ELSB_MASK); + reg |= ((uint32_t)edgeParam->mode | (uint32_t)edgeParam->nextChanEdgeMode); + base->CONTROLS[(chnlPairNumber * 2) + 1].CnSC = reg; + + /* Input filter available only for channels 0, 1, 2, 3 */ + if (chnlPairNumber < kFTM_Chnl_4) + { + reg = base->FILTER; + reg &= ~(FTM_FILTER_CH0FVAL_MASK << (FTM_FILTER_CH1FVAL_SHIFT * chnlPairNumber)); + reg |= (filterValue << (FTM_FILTER_CH1FVAL_SHIFT * chnlPairNumber)); + base->FILTER = reg; + } + +#if defined(FSL_FEATURE_FTM_HAS_ENABLE_PWM_OUTPUT) && (FSL_FEATURE_FTM_HAS_ENABLE_PWM_OUTPUT) + /* Set to input mode */ + FTM_SetPwmOutputEnable(base, chnlPairNumber, false); +#endif +} + +void FTM_SetupQuadDecode(FTM_Type *base, + const ftm_phase_params_t *phaseAParams, + const ftm_phase_params_t *phaseBParams, + ftm_quad_decode_mode_t quadMode) +{ + assert(phaseAParams); + assert(phaseBParams); + + uint32_t reg; + + /* Set Phase A filter value if phase filter is enabled */ + if (phaseAParams->enablePhaseFilter) + { + reg = base->FILTER; + reg &= ~(FTM_FILTER_CH0FVAL_MASK); + reg |= FTM_FILTER_CH0FVAL(phaseAParams->phaseFilterVal); + base->FILTER = reg; + } + + /* Set Phase B filter value if phase filter is enabled */ + if (phaseBParams->enablePhaseFilter) + { + reg = base->FILTER; + reg &= ~(FTM_FILTER_CH1FVAL_MASK); + reg |= FTM_FILTER_CH1FVAL(phaseBParams->phaseFilterVal); + base->FILTER = reg; + } + + /* Set Quadrature decode properties */ + reg = base->QDCTRL; + reg &= ~(FTM_QDCTRL_QUADMODE_MASK | FTM_QDCTRL_PHAFLTREN_MASK | FTM_QDCTRL_PHBFLTREN_MASK | FTM_QDCTRL_PHAPOL_MASK | + FTM_QDCTRL_PHBPOL_MASK); + reg |= (FTM_QDCTRL_QUADMODE(quadMode) | FTM_QDCTRL_PHAFLTREN(phaseAParams->enablePhaseFilter) | + FTM_QDCTRL_PHBFLTREN(phaseBParams->enablePhaseFilter) | FTM_QDCTRL_PHAPOL(phaseAParams->phasePolarity) | + FTM_QDCTRL_PHBPOL(phaseBParams->phasePolarity)); + base->QDCTRL = reg; + /* Enable Quad decode */ + base->QDCTRL |= FTM_QDCTRL_QUADEN_MASK; +} + +void FTM_SetupFault(FTM_Type *base, ftm_fault_input_t faultNumber, const ftm_fault_param_t *faultParams) +{ + assert(faultParams); + + uint32_t reg; + + reg = base->FLTCTRL; + if (faultParams->enableFaultInput) + { + /* Enable the fault input */ + reg |= (FTM_FLTCTRL_FAULT0EN_MASK << faultNumber); + } + else + { + /* Disable the fault input */ + reg &= ~(FTM_FLTCTRL_FAULT0EN_MASK << faultNumber); + } + + if (faultParams->useFaultFilter) + { + /* Enable the fault filter */ + reg |= (FTM_FLTCTRL_FFLTR0EN_MASK << (FTM_FLTCTRL_FFLTR0EN_SHIFT + faultNumber)); + } + else + { + /* Disable the fault filter */ + reg &= ~(FTM_FLTCTRL_FFLTR0EN_MASK << (FTM_FLTCTRL_FFLTR0EN_SHIFT + faultNumber)); + } + base->FLTCTRL = reg; + + if (faultParams->faultLevel) + { + /* Active low polarity for the fault input pin */ + base->FLTPOL |= (1U << faultNumber); + } + else + { + /* Active high polarity for the fault input pin */ + base->FLTPOL &= ~(1U << faultNumber); + } +} + +void FTM_EnableInterrupts(FTM_Type *base, uint32_t mask) +{ + uint32_t chnlInts = (mask & 0xFFU); + uint8_t chnlNumber = 0; + + /* Enable the timer overflow interrupt */ + if (mask & kFTM_TimeOverflowInterruptEnable) + { + base->SC |= FTM_SC_TOIE_MASK; + } + + /* Enable the fault interrupt */ + if (mask & kFTM_FaultInterruptEnable) + { + base->MODE |= FTM_MODE_FAULTIE_MASK; + } + +#if defined(FSL_FEATURE_FTM_HAS_RELOAD_INTERRUPT) && (FSL_FEATURE_FTM_HAS_RELOAD_INTERRUPT) + /* Enable the reload interrupt available only on certain SoC's */ + if (mask & kFTM_ReloadInterruptEnable) + { + base->SC |= FTM_SC_RIE_MASK; + } +#endif + + /* Enable the channel interrupts */ + while (chnlInts) + { + if (chnlInts & 0x1) + { + base->CONTROLS[chnlNumber].CnSC |= FTM_CnSC_CHIE_MASK; + } + chnlNumber++; + chnlInts = chnlInts >> 1U; + } +} + +void FTM_DisableInterrupts(FTM_Type *base, uint32_t mask) +{ + uint32_t chnlInts = (mask & 0xFF); + uint8_t chnlNumber = 0; + + /* Disable the timer overflow interrupt */ + if (mask & kFTM_TimeOverflowInterruptEnable) + { + base->SC &= ~FTM_SC_TOIE_MASK; + } + /* Disable the fault interrupt */ + if (mask & kFTM_FaultInterruptEnable) + { + base->MODE &= ~FTM_MODE_FAULTIE_MASK; + } + +#if defined(FSL_FEATURE_FTM_HAS_RELOAD_INTERRUPT) && (FSL_FEATURE_FTM_HAS_RELOAD_INTERRUPT) + /* Disable the reload interrupt available only on certain SoC's */ + if (mask & kFTM_ReloadInterruptEnable) + { + base->SC &= ~FTM_SC_RIE_MASK; + } +#endif + + /* Disable the channel interrupts */ + while (chnlInts) + { + if (chnlInts & 0x1) + { + base->CONTROLS[chnlNumber].CnSC &= ~FTM_CnSC_CHIE_MASK; + } + chnlNumber++; + chnlInts = chnlInts >> 1U; + } +} + +uint32_t FTM_GetEnabledInterrupts(FTM_Type *base) +{ + uint32_t enabledInterrupts = 0; + int8_t chnlCount = FSL_FEATURE_FTM_CHANNEL_COUNTn(base); + + /* The CHANNEL_COUNT macro returns -1 if it cannot match the FTM instance */ + assert(chnlCount != -1); + + /* Check if timer overflow interrupt is enabled */ + if (base->SC & FTM_SC_TOIE_MASK) + { + enabledInterrupts |= kFTM_TimeOverflowInterruptEnable; + } + /* Check if fault interrupt is enabled */ + if (base->MODE & FTM_MODE_FAULTIE_MASK) + { + enabledInterrupts |= kFTM_FaultInterruptEnable; + } + +#if defined(FSL_FEATURE_FTM_HAS_RELOAD_INTERRUPT) && (FSL_FEATURE_FTM_HAS_RELOAD_INTERRUPT) + /* Check if the reload interrupt is enabled */ + if (base->SC & FTM_SC_RIE_MASK) + { + enabledInterrupts |= kFTM_ReloadInterruptEnable; + } +#endif + + /* Check if the channel interrupts are enabled */ + while (chnlCount > 0) + { + chnlCount--; + if (base->CONTROLS[chnlCount].CnSC & FTM_CnSC_CHIE_MASK) + { + enabledInterrupts |= (1U << chnlCount); + } + } + + return enabledInterrupts; +} + +uint32_t FTM_GetStatusFlags(FTM_Type *base) +{ + uint32_t statusFlags = 0; + + /* Check the timer flag */ + if (base->SC & FTM_SC_TOF_MASK) + { + statusFlags |= kFTM_TimeOverflowFlag; + } + /* Check fault flag */ + if (base->FMS & FTM_FMS_FAULTF_MASK) + { + statusFlags |= kFTM_FaultFlag; + } + /* Check channel trigger flag */ + if (base->EXTTRIG & FTM_EXTTRIG_TRIGF_MASK) + { + statusFlags |= kFTM_ChnlTriggerFlag; + } +#if defined(FSL_FEATURE_FTM_HAS_RELOAD_INTERRUPT) && (FSL_FEATURE_FTM_HAS_RELOAD_INTERRUPT) + /* Check reload flag */ + if (base->SC & FTM_SC_RF_MASK) + { + statusFlags |= kFTM_ReloadFlag; + } +#endif + + /* Lower 8 bits contain the channel status flags */ + statusFlags |= (base->STATUS & 0xFFU); + + return statusFlags; +} + +void FTM_ClearStatusFlags(FTM_Type *base, uint32_t mask) +{ + /* Clear the timer overflow flag by writing a 0 to the bit while it is set */ + if (mask & kFTM_TimeOverflowFlag) + { + base->SC &= ~FTM_SC_TOF_MASK; + } + /* Clear fault flag by writing a 0 to the bit while it is set */ + if (mask & kFTM_FaultFlag) + { + base->FMS &= ~FTM_FMS_FAULTF_MASK; + } + /* Clear channel trigger flag */ + if (mask & kFTM_ChnlTriggerFlag) + { + base->EXTTRIG &= ~FTM_EXTTRIG_TRIGF_MASK; + } + +#if defined(FSL_FEATURE_FTM_HAS_RELOAD_INTERRUPT) && (FSL_FEATURE_FTM_HAS_RELOAD_INTERRUPT) + /* Check reload flag by writing a 0 to the bit while it is set */ + if (mask & kFTM_ReloadFlag) + { + base->SC &= ~FTM_SC_RF_MASK; + } +#endif + /* Clear the channel status flags by writing a 0 to the bit */ + base->STATUS &= ~(mask & 0xFFU); +} diff --git a/drivers/fsl_ftm.h b/drivers/fsl_ftm.h new file mode 100644 index 0000000..7643635 --- /dev/null +++ b/drivers/fsl_ftm.h @@ -0,0 +1,861 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_FTM_H_ +#define _FSL_FTM_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup ftm + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +#define FSL_FTM_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) /*!< Version 2.0.0 */ +/*@}*/ + +/*! + * @brief List of FTM channels + * @note Actual number of available channels is SoC dependent + */ +typedef enum _ftm_chnl +{ + kFTM_Chnl_0 = 0U, /*!< FTM channel number 0*/ + kFTM_Chnl_1, /*!< FTM channel number 1 */ + kFTM_Chnl_2, /*!< FTM channel number 2 */ + kFTM_Chnl_3, /*!< FTM channel number 3 */ + kFTM_Chnl_4, /*!< FTM channel number 4 */ + kFTM_Chnl_5, /*!< FTM channel number 5 */ + kFTM_Chnl_6, /*!< FTM channel number 6 */ + kFTM_Chnl_7 /*!< FTM channel number 7 */ +} ftm_chnl_t; + +/*! @brief List of FTM faults */ +typedef enum _ftm_fault_input +{ + kFTM_Fault_0 = 0U, /*!< FTM fault 0 input pin */ + kFTM_Fault_1, /*!< FTM fault 1 input pin */ + kFTM_Fault_2, /*!< FTM fault 2 input pin */ + kFTM_Fault_3 /*!< FTM fault 3 input pin */ +} ftm_fault_input_t; + +/*! @brief FTM PWM operation modes */ +typedef enum _ftm_pwm_mode +{ + kFTM_EdgeAlignedPwm = 0U, /*!< Edge-aligned PWM */ + kFTM_CenterAlignedPwm, /*!< Center-aligned PWM */ + kFTM_CombinedPwm /*!< Combined PWM */ +} ftm_pwm_mode_t; + +/*! @brief FTM PWM output pulse mode: high-true, low-true or no output */ +typedef enum _ftm_pwm_level_select +{ + kFTM_NoPwmSignal = 0U, /*!< No PWM output on pin */ + kFTM_LowTrue, /*!< Low true pulses */ + kFTM_HighTrue /*!< High true pulses */ +} ftm_pwm_level_select_t; + +/*! @brief Options to configure a FTM channel's PWM signal */ +typedef struct _ftm_chnl_pwm_signal_param +{ + ftm_chnl_t chnlNumber; /*!< The channel/channel pair number. + In combined mode, this represents the channel pair number. */ + ftm_pwm_level_select_t level; /*!< PWM output active level select. */ + uint8_t dutyCyclePercent; /*!< PWM pulse width, value should be between 0 to 100 + 0 = inactive signal(0% duty cycle)... + 100 = always active signal (100% duty cycle).*/ + uint8_t firstEdgeDelayPercent; /*!< Used only in combined PWM mode to generate an asymmetrical PWM. + Specifies the delay to the first edge in a PWM period. + If unsure leave as 0; Should be specified as a + percentage of the PWM period */ +} ftm_chnl_pwm_signal_param_t; + +/*! @brief FlexTimer output compare mode */ +typedef enum _ftm_output_compare_mode +{ + kFTM_NoOutputSignal = (1U << FTM_CnSC_MSA_SHIFT), /*!< No channel output when counter reaches CnV */ + kFTM_ToggleOnMatch = ((1U << FTM_CnSC_MSA_SHIFT) | (1U << FTM_CnSC_ELSA_SHIFT)), /*!< Toggle output */ + kFTM_ClearOnMatch = ((1U << FTM_CnSC_MSA_SHIFT) | (2U << FTM_CnSC_ELSA_SHIFT)), /*!< Clear output */ + kFTM_SetOnMatch = ((1U << FTM_CnSC_MSA_SHIFT) | (3U << FTM_CnSC_ELSA_SHIFT)) /*!< Set output */ +} ftm_output_compare_mode_t; + +/*! @brief FlexTimer input capture edge */ +typedef enum _ftm_input_capture_edge +{ + kFTM_RisingEdge = (1U << FTM_CnSC_ELSA_SHIFT), /*!< Capture on rising edge only*/ + kFTM_FallingEdge = (2U << FTM_CnSC_ELSA_SHIFT), /*!< Capture on falling edge only*/ + kFTM_RiseAndFallEdge = (3U << FTM_CnSC_ELSA_SHIFT) /*!< Capture on rising or falling edge */ +} ftm_input_capture_edge_t; + +/*! @brief FlexTimer dual edge capture modes */ +typedef enum _ftm_dual_edge_capture_mode +{ + kFTM_OneShot = 0U, /*!< One-shot capture mode */ + kFTM_Continuous = (1U << FTM_CnSC_MSA_SHIFT) /*!< Continuous capture mode */ +} ftm_dual_edge_capture_mode_t; + +/*! @brief FlexTimer dual edge capture parameters */ +typedef struct _ftm_dual_edge_capture_param +{ + ftm_dual_edge_capture_mode_t mode; /*!< Dual Edge Capture mode */ + ftm_input_capture_edge_t currChanEdgeMode; /*!< Input capture edge select for channel n */ + ftm_input_capture_edge_t nextChanEdgeMode; /*!< Input capture edge select for channel n+1 */ +} ftm_dual_edge_capture_param_t; + +/*! @brief FlexTimer quadrature decode modes */ +typedef enum _ftm_quad_decode_mode +{ + kFTM_QuadPhaseEncode = 0U, /*!< Phase A and Phase B encoding mode */ + kFTM_QuadCountAndDir /*!< Count and direction encoding mode */ +} ftm_quad_decode_mode_t; + +/*! @brief FlexTimer quadrature phase polarities */ +typedef enum _ftm_phase_polarity +{ + kFTM_QuadPhaseNormal = 0U, /*!< Phase input signal is not inverted */ + kFTM_QuadPhaseInvert /*!< Phase input signal is inverted */ +} ftm_phase_polarity_t; + +/*! @brief FlexTimer quadrature decode phase parameters */ +typedef struct _ftm_phase_param +{ + bool enablePhaseFilter; /*!< True: enable phase filter; false: disable filter */ + uint32_t phaseFilterVal; /*!< Filter value, used only if phase filter is enabled */ + ftm_phase_polarity_t phasePolarity; /*!< Phase polarity */ +} ftm_phase_params_t; + +/*! @brief Structure is used to hold the parameters to configure a FTM fault */ +typedef struct _ftm_fault_param +{ + bool enableFaultInput; /*!< True: Fault input is enabled; false: Fault input is disabled */ + bool faultLevel; /*!< True: Fault polarity is active low i.e., '0' indicates a fault; + False: Fault polarity is active high */ + bool useFaultFilter; /*!< True: Use the filtered fault signal; + False: Use the direct path from fault input */ +} ftm_fault_param_t; + +/*! @brief FlexTimer pre-scaler factor for the dead time insertion*/ +typedef enum _ftm_deadtime_prescale +{ + kFTM_Deadtime_Prescale_1 = 1U, /*!< Divide by 1 */ + kFTM_Deadtime_Prescale_4, /*!< Divide by 4 */ + kFTM_Deadtime_Prescale_16 /*!< Divide by 16 */ +} ftm_deadtime_prescale_t; + +/*! @brief FlexTimer clock source selection*/ +typedef enum _ftm_clock_source +{ + kFTM_SystemClock = 1U, /*!< System clock selected */ + kFTM_FixedClock, /*!< Fixed frequency clock */ + kFTM_ExternalClock /*!< External clock */ +} ftm_clock_source_t; + +/*! @brief FlexTimer pre-scaler factor selection for the clock source*/ +typedef enum _ftm_clock_prescale +{ + kFTM_Prescale_Divide_1 = 0U, /*!< Divide by 1 */ + kFTM_Prescale_Divide_2, /*!< Divide by 2 */ + kFTM_Prescale_Divide_4, /*!< Divide by 4 */ + kFTM_Prescale_Divide_8, /*!< Divide by 8 */ + kFTM_Prescale_Divide_16, /*!< Divide by 16 */ + kFTM_Prescale_Divide_32, /*!< Divide by 32 */ + kFTM_Prescale_Divide_64, /*!< Divide by 64 */ + kFTM_Prescale_Divide_128 /*!< Divide by 128 */ +} ftm_clock_prescale_t; + +/*! @brief Options for the FlexTimer behaviour in BDM Mode */ +typedef enum _ftm_bdm_mode +{ + kFTM_BdmMode_0 = 0U, + /*!< FTM counter stopped, CH(n)F bit can be set, FTM channels in functional mode, writes to MOD,CNTIN and C(n)V + registers bypass the register buffers */ + kFTM_BdmMode_1, + /*!< FTM counter stopped, CH(n)F bit is not set, FTM channels outputs are forced to their safe value , writes to + MOD,CNTIN and C(n)V registers bypass the register buffers */ + kFTM_BdmMode_2, + /*!< FTM counter stopped, CH(n)F bit is not set, FTM channels outputs are frozen when chip enters in BDM mode, + writes to MOD,CNTIN and C(n)V registers bypass the register buffers */ + kFTM_BdmMode_3 + /*!< FTM counter in functional mode, CH(n)F bit can be set, FTM channels in functional mode, writes to MOD,CNTIN and + C(n)V registers is in fully functional mode */ +} ftm_bdm_mode_t; + +/*! @brief Options for the FTM fault control mode */ +typedef enum _ftm_fault_mode +{ + kFTM_Fault_Disable = 0U, /*!< Fault control is disabled for all channels */ + kFTM_Fault_EvenChnls, /*!< Enabled for even channels only(0,2,4,6) with manual fault clearing */ + kFTM_Fault_AllChnlsMan, /*!< Enabled for all channels with manual fault clearing */ + kFTM_Fault_AllChnlsAuto /*!< Enabled for all channels with automatic fault clearing */ +} ftm_fault_mode_t; + +/*! + * @brief FTM external trigger options + * @note Actual available external trigger sources are SoC-specific + */ +typedef enum _ftm_external_trigger +{ + kFTM_Chnl0Trigger = (1U << 4), /*!< Generate trigger when counter equals chnl 0 CnV reg */ + kFTM_Chnl1Trigger = (1U << 5), /*!< Generate trigger when counter equals chnl 1 CnV reg */ + kFTM_Chnl2Trigger = (1U << 0), /*!< Generate trigger when counter equals chnl 2 CnV reg */ + kFTM_Chnl3Trigger = (1U << 1), /*!< Generate trigger when counter equals chnl 3 CnV reg */ + kFTM_Chnl4Trigger = (1U << 2), /*!< Generate trigger when counter equals chnl 4 CnV reg */ + kFTM_Chnl5Trigger = (1U << 3), /*!< Generate trigger when counter equals chnl 5 CnV reg */ + kFTM_Chnl6Trigger = + (1U << 8), /*!< Available on certain SoC's, generate trigger when counter equals chnl 6 CnV reg */ + kFTM_Chnl7Trigger = + (1U << 9), /*!< Available on certain SoC's, generate trigger when counter equals chnl 7 CnV reg */ + kFTM_InitTrigger = (1U << 6), /*!< Generate Trigger when counter is updated with CNTIN */ + kFTM_ReloadInitTrigger = (1U << 7) /*!< Available on certain SoC's, trigger on reload point */ +} ftm_external_trigger_t; + +/*! @brief FlexTimer PWM sync options to update registers with buffer */ +typedef enum _ftm_pwm_sync_method +{ + kFTM_SoftwareTrigger = FTM_SYNC_SWSYNC_MASK, /*!< Software triggers PWM sync */ + kFTM_HardwareTrigger_0 = FTM_SYNC_TRIG0_MASK, /*!< Hardware trigger 0 causes PWM sync */ + kFTM_HardwareTrigger_1 = FTM_SYNC_TRIG1_MASK, /*!< Hardware trigger 1 causes PWM sync */ + kFTM_HardwareTrigger_2 = FTM_SYNC_TRIG2_MASK /*!< Hardware trigger 2 causes PWM sync */ +} ftm_pwm_sync_method_t; + +/*! + * @brief FTM options available as loading point for register reload + * @note Actual available reload points are SoC-specific + */ +typedef enum _ftm_reload_point +{ + kFTM_Chnl0Match = (1U << 0), /*!< Channel 0 match included as a reload point */ + kFTM_Chnl1Match = (1U << 1), /*!< Channel 1 match included as a reload point */ + kFTM_Chnl2Match = (1U << 2), /*!< Channel 2 match included as a reload point */ + kFTM_Chnl3Match = (1U << 3), /*!< Channel 3 match included as a reload point */ + kFTM_Chnl4Match = (1U << 4), /*!< Channel 4 match included as a reload point */ + kFTM_Chnl5Match = (1U << 5), /*!< Channel 5 match included as a reload point */ + kFTM_Chnl6Match = (1U << 6), /*!< Channel 6 match included as a reload point */ + kFTM_Chnl7Match = (1U << 7), /*!< Channel 7 match included as a reload point */ + kFTM_CntMax = (1U << 8), /*!< Use in up-down count mode only, reload when counter reaches the maximum value */ + kFTM_CntMin = (1U << 9), /*!< Use in up-down count mode only, reload when counter reaches the minimum value */ + kFTM_HalfCycMatch = (1U << 10) /*!< Available on certain SoC's, half cycle match reload point */ +} ftm_reload_point_t; + +/*! + * @brief List of FTM interrupts + * @note Actual available interrupts are SoC-specific + */ +typedef enum _ftm_interrupt_enable +{ + kFTM_Chnl0InterruptEnable = (1U << 0), /*!< Channel 0 interrupt */ + kFTM_Chnl1InterruptEnable = (1U << 1), /*!< Channel 1 interrupt */ + kFTM_Chnl2InterruptEnable = (1U << 2), /*!< Channel 2 interrupt */ + kFTM_Chnl3InterruptEnable = (1U << 3), /*!< Channel 3 interrupt */ + kFTM_Chnl4InterruptEnable = (1U << 4), /*!< Channel 4 interrupt */ + kFTM_Chnl5InterruptEnable = (1U << 5), /*!< Channel 5 interrupt */ + kFTM_Chnl6InterruptEnable = (1U << 6), /*!< Channel 6 interrupt */ + kFTM_Chnl7InterruptEnable = (1U << 7), /*!< Channel 7 interrupt */ + kFTM_FaultInterruptEnable = (1U << 8), /*!< Fault interrupt */ + kFTM_TimeOverflowInterruptEnable = (1U << 9), /*!< Time overflow interrupt */ + kFTM_ReloadInterruptEnable = (1U << 10) /*!< Reload interrupt; Available only on certain SoC's */ +} ftm_interrupt_enable_t; + +/*! + * @brief List of FTM flags + * @note Actual available flags are SoC-specific + */ +typedef enum _ftm_status_flags +{ + kFTM_Chnl0Flag = (1U << 0), /*!< Channel 0 Flag */ + kFTM_Chnl1Flag = (1U << 1), /*!< Channel 1 Flag */ + kFTM_Chnl2Flag = (1U << 2), /*!< Channel 2 Flag */ + kFTM_Chnl3Flag = (1U << 3), /*!< Channel 3 Flag */ + kFTM_Chnl4Flag = (1U << 4), /*!< Channel 4 Flag */ + kFTM_Chnl5Flag = (1U << 5), /*!< Channel 5 Flag */ + kFTM_Chnl6Flag = (1U << 6), /*!< Channel 6 Flag */ + kFTM_Chnl7Flag = (1U << 7), /*!< Channel 7 Flag */ + kFTM_FaultFlag = (1U << 8), /*!< Fault Flag */ + kFTM_TimeOverflowFlag = (1U << 9), /*!< Time overflow Flag */ + kFTM_ChnlTriggerFlag = (1U << 10), /*!< Channel trigger Flag */ + kFTM_ReloadFlag = (1U << 11) /*!< Reload Flag; Available only on certain SoC's */ +} ftm_status_flags_t; + +/*! + * @brief FTM configuration structure + * + * This structure holds the configuration settings for the FTM peripheral. To initialize this + * structure to reasonable defaults, call the FTM_GetDefaultConfig() function and pass a + * pointer to the configuration structure instance. + * + * The configuration structure can be made constant so as to reside in flash. + */ +typedef struct _ftm_config +{ + ftm_clock_prescale_t prescale; /*!< FTM clock prescale value */ + ftm_bdm_mode_t bdmMode; /*!< FTM behavior in BDM mode */ + uint32_t pwmSyncMode; /*!< Synchronization methods to use to update buffered registers; Multiple + update modes can be used by providing an OR'ed list of options + available in enumeration ::ftm_pwm_sync_method_t. */ + uint32_t reloadPoints; /*!< FTM reload points; When using this, the PWM + synchronization is not required. Multiple reload points can be used by providing + an OR'ed list of options available in + enumeration ::ftm_reload_point_t. */ + ftm_fault_mode_t faultMode; /*!< FTM fault control mode */ + uint8_t faultFilterValue; /*!< Fault input filter value */ + ftm_deadtime_prescale_t deadTimePrescale; /*!< The dead time prescalar value */ + uint8_t deadTimeValue; /*!< The dead time value */ + uint32_t extTriggers; /*!< External triggers to enable. Multiple trigger sources can be + enabled by providing an OR'ed list of options available in + enumeration ::ftm_external_trigger_t. */ + uint8_t chnlInitState; /*!< Defines the initialization value of the channels in OUTINT register */ + uint8_t chnlPolarity; /*!< Defines the output polarity of the channels in POL register */ + bool useGlobalTimeBase; /*!< True: Use of an external global time base is enabled; + False: disabled */ +} ftm_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name Initialization and deinitialization + * @{ + */ + +/*! + * @brief Ungates the FTM clock and configures the peripheral for basic operation. + * + * @note This API should be called at the beginning of the application using the FTM driver. + * + * @param base FTM peripheral base address + * @param config Pointer to the user configuration structure. + * + * @return kStatus_Success indicates success; Else indicates failure. + */ +status_t FTM_Init(FTM_Type *base, const ftm_config_t *config); + +/*! + * @brief Gates the FTM clock. + * + * @param base FTM peripheral base address + */ +void FTM_Deinit(FTM_Type *base); + +/*! + * @brief Fills in the FTM configuration structure with the default settings. + * + * The default values are: + * @code + * config->prescale = kFTM_Prescale_Divide_1; + * config->bdmMode = kFTM_BdmMode_0; + * config->pwmSyncMode = kFTM_SoftwareTrigger; + * config->reloadPoints = 0; + * config->faultMode = kFTM_Fault_Disable; + * config->faultFilterValue = 0; + * config->deadTimePrescale = kFTM_Deadtime_Prescale_1; + * config->deadTimeValue = 0; + * config->extTriggers = 0; + * config->chnlInitState = 0; + * config->chnlPolarity = 0; + * config->useGlobalTimeBase = false; + * @endcode + * @param config Pointer to the user configuration structure. + */ +void FTM_GetDefaultConfig(ftm_config_t *config); + +/*! @}*/ + +/*! + * @name Channel mode operations + * @{ + */ + +/*! + * @brief Configures the PWM signal parameters. + * + * Call this function to configure the PWM signal period, mode, duty cycle, and edge. Use this + * function to configure all FTM channels that are used to output a PWM signal. + * + * @param base FTM peripheral base address + * @param chnlParams Array of PWM channel parameters to configure the channel(s) + * @param numOfChnls Number of channels to configure; This should be the size of the array passed in + * @param mode PWM operation mode, options available in enumeration ::ftm_pwm_mode_t + * @param pwmFreq_Hz PWM signal frequency in Hz + * @param srcClock_Hz FTM counter clock in Hz + * + * @return kStatus_Success if the PWM setup was successful + * kStatus_Error on failure + */ +status_t FTM_SetupPwm(FTM_Type *base, + const ftm_chnl_pwm_signal_param_t *chnlParams, + uint8_t numOfChnls, + ftm_pwm_mode_t mode, + uint32_t pwmFreq_Hz, + uint32_t srcClock_Hz); + +/*! + * @brief Updates the duty cycle of an active PWM signal. + * + * @param base FTM peripheral base address + * @param chnlNumber The channel/channel pair number. In combined mode, this represents + * the channel pair number + * @param currentPwmMode The current PWM mode set during PWM setup + * @param dutyCyclePercent New PWM pulse width; The value should be between 0 to 100 + * 0=inactive signal(0% duty cycle)... + * 100=active signal (100% duty cycle) + */ +void FTM_UpdatePwmDutycycle(FTM_Type *base, + ftm_chnl_t chnlNumber, + ftm_pwm_mode_t currentPwmMode, + uint8_t dutyCyclePercent); + +/*! + * @brief Updates the edge level selection for a channel. + * + * @param base FTM peripheral base address + * @param chnlNumber The channel number + * @param level The level to be set to the ELSnB:ELSnA field; Valid values are 00, 01, 10, 11. + * See the Kinetis SoC reference manual for details about this field. + */ +void FTM_UpdateChnlEdgeLevelSelect(FTM_Type *base, ftm_chnl_t chnlNumber, uint8_t level); + +/*! + * @brief Enables capturing an input signal on the channel using the function parameters. + * + * When the edge specified in the captureMode argument occurs on the channel, the FTM counter is + * captured into the CnV register. The user has to read the CnV register separately to get this + * value. The filter function is disabled if the filterVal argument passed in is 0. The filter + * function is available only for channels 0, 1, 2, 3. + * + * @param base FTM peripheral base address + * @param chnlNumber The channel number + * @param captureMode Specifies which edge to capture + * @param filterValue Filter value, specify 0 to disable filter. Available only for channels 0-3. + */ +void FTM_SetupInputCapture(FTM_Type *base, + ftm_chnl_t chnlNumber, + ftm_input_capture_edge_t captureMode, + uint32_t filterValue); + +/*! + * @brief Configures the FTM to generate timed pulses. + * + * When the FTM counter matches the value of compareVal argument (this is written into CnV reg), + * the channel output is changed based on what is specified in the compareMode argument. + * + * @param base FTM peripheral base address + * @param chnlNumber The channel number + * @param compareMode Action to take on the channel output when the compare condition is met + * @param compareValue Value to be programmed in the CnV register. + */ +void FTM_SetupOutputCompare(FTM_Type *base, + ftm_chnl_t chnlNumber, + ftm_output_compare_mode_t compareMode, + uint32_t compareValue); + +/*! + * @brief Configures the dual edge capture mode of the FTM. + * + * This function sets up the dual edge capture mode on a channel pair. The capture edge for the + * channel pair and the capture mode (one-shot or continuous) is specified in the parameter + * argument. The filter function is disabled if the filterVal argument passed is zero. The filter + * function is available only on channels 0 and 2. The user has to read the channel CnV registers + * separately to get the capture values. + * + * @param base FTM peripheral base address + * @param chnlPairNumber The FTM channel pair number; options are 0, 1, 2, 3 + * @param edgeParam Sets up the dual edge capture function + * @param filterValue Filter value, specify 0 to disable filter. Available only for channel pair 0 and 1. + */ +void FTM_SetupDualEdgeCapture(FTM_Type *base, + ftm_chnl_t chnlPairNumber, + const ftm_dual_edge_capture_param_t *edgeParam, + uint32_t filterValue); + +/*! @}*/ + +/*! + * @brief Configures the parameters and activates the quadrature decoder mode. + * + * @param base FTM peripheral base address + * @param phaseAParams Phase A configuration parameters + * @param phaseBParams Phase B configuration parameters + * @param quadMode Selects encoding mode used in quadrature decoder mode + */ +void FTM_SetupQuadDecode(FTM_Type *base, + const ftm_phase_params_t *phaseAParams, + const ftm_phase_params_t *phaseBParams, + ftm_quad_decode_mode_t quadMode); + +/*! + * @brief Sets up the working of the FTM fault protection. + * + * FTM can have up to 4 fault inputs. This function sets up fault parameters, fault level, and a filter. + * + * @param base FTM peripheral base address + * @param faultNumber FTM fault to configure. + * @param faultParams Parameters passed in to set up the fault + */ +void FTM_SetupFault(FTM_Type *base, ftm_fault_input_t faultNumber, const ftm_fault_param_t *faultParams); + +/*! + * @name Interrupt Interface + * @{ + */ + +/*! + * @brief Enables the selected FTM interrupts. + * + * @param base FTM peripheral base address + * @param mask The interrupts to enable. This is a logical OR of members of the + * enumeration ::ftm_interrupt_enable_t + */ +void FTM_EnableInterrupts(FTM_Type *base, uint32_t mask); + +/*! + * @brief Disables the selected FTM interrupts. + * + * @param base FTM peripheral base address + * @param mask The interrupts to enable. This is a logical OR of members of the + * enumeration ::ftm_interrupt_enable_t + */ +void FTM_DisableInterrupts(FTM_Type *base, uint32_t mask); + +/*! + * @brief Gets the enabled FTM interrupts. + * + * @param base FTM peripheral base address + * + * @return The enabled interrupts. This is the logical OR of members of the + * enumeration ::ftm_interrupt_enable_t + */ +uint32_t FTM_GetEnabledInterrupts(FTM_Type *base); + +/*! @}*/ + +/*! + * @name Status Interface + * @{ + */ + +/*! + * @brief Gets the FTM status flags. + * + * @param base FTM peripheral base address + * + * @return The status flags. This is the logical OR of members of the + * enumeration ::ftm_status_flags_t + */ +uint32_t FTM_GetStatusFlags(FTM_Type *base); + +/*! + * @brief Clears the FTM status flags. + * + * @param base FTM peripheral base address + * @param mask The status flags to clear. This is a logical OR of members of the + * enumeration ::ftm_status_flags_t + */ +void FTM_ClearStatusFlags(FTM_Type *base, uint32_t mask); + +/*! @}*/ + +/*! + * @name Timer Start and Stop + * @{ + */ + +/*! + * @brief Starts the FTM counter. + * + * @param base FTM peripheral base address + * @param clockSource FTM clock source; After the clock source is set, the counter starts running. + */ +static inline void FTM_StartTimer(FTM_Type *base, ftm_clock_source_t clockSource) +{ + uint32_t reg = base->SC; + + reg &= ~(FTM_SC_CLKS_MASK); + reg |= FTM_SC_CLKS(clockSource); + base->SC = reg; +} + +/*! + * @brief Stops the FTM counter. + * + * @param base FTM peripheral base address + */ +static inline void FTM_StopTimer(FTM_Type *base) +{ + /* Set clock source to none to disable counter */ + base->SC &= ~(FTM_SC_CLKS_MASK); +} + +/*! @}*/ + +/*! + * @name Software output control + * @{ + */ + +/*! + * @brief Enables or disables the channel software output control. + * + * @param base FTM peripheral base address + * @param chnlNumber Channel to be enabled or disabled + * @param value true: channel output is affected by software output control + false: channel output is unaffected by software output control + */ +static inline void FTM_SetSoftwareCtrlEnable(FTM_Type *base, ftm_chnl_t chnlNumber, bool value) +{ + if (value) + { + base->SWOCTRL |= (1U << chnlNumber); + } + else + { + base->SWOCTRL &= ~(1U << chnlNumber); + } +} + +/*! + * @brief Sets the channel software output control value. + * + * @param base FTM peripheral base address. + * @param chnlNumber Channel to be configured + * @param value true to set 1, false to set 0 + */ +static inline void FTM_SetSoftwareCtrlVal(FTM_Type *base, ftm_chnl_t chnlNumber, bool value) +{ + if (value) + { + base->SWOCTRL |= (1U << (chnlNumber + FTM_SWOCTRL_CH0OCV_SHIFT)); + } + else + { + base->SWOCTRL &= ~(1U << (chnlNumber + FTM_SWOCTRL_CH0OCV_SHIFT)); + } +} + +/*! @}*/ + +/*! + * @brief Enables or disables the FTM global time base signal generation to other FTMs. + * + * @param base FTM peripheral base address + * @param enable true to enable, false to disable + */ +static inline void FTM_SetGlobalTimeBaseOutputEnable(FTM_Type *base, bool enable) +{ + if (enable) + { + base->CONF |= FTM_CONF_GTBEOUT_MASK; + } + else + { + base->CONF &= ~FTM_CONF_GTBEOUT_MASK; + } +} + +/*! + * @brief Sets the FTM peripheral timer channel output mask. + * + * @param base FTM peripheral base address + * @param chnlNumber Channel to be configured + * @param mask true: masked, channel is forced to its inactive state; false: unmasked + */ +static inline void FTM_SetOutputMask(FTM_Type *base, ftm_chnl_t chnlNumber, bool mask) +{ + if (mask) + { + base->OUTMASK |= (1U << chnlNumber); + } + else + { + base->OUTMASK &= ~(1U << chnlNumber); + } +} + +#if defined(FSL_FEATURE_FTM_HAS_ENABLE_PWM_OUTPUT) && (FSL_FEATURE_FTM_HAS_ENABLE_PWM_OUTPUT) +/*! + * @brief Allows user to enable an output on an FTM channel. + * + * To enable the PWM channel output call this function with val=true. For input mode, + * call this function with val=false. + * + * @param base FTM peripheral base address + * @param chnlNumber Channel to be configured + * @param value true: enable output; false: output is disabled, used in input mode + */ +static inline void FTM_SetPwmOutputEnable(FTM_Type *base, ftm_chnl_t chnlNumber, bool value) +{ + if (value) + { + base->SC |= (1U << (chnlNumber + FTM_SC_PWMEN0_SHIFT)); + } + else + { + base->SC &= ~(1U << (chnlNumber + FTM_SC_PWMEN0_SHIFT)); + } +} +#endif + +/*! + * @name Channel pair operations + * @{ + */ + +/*! + * @brief This function enables/disables the fault control in a channel pair. + * + * @param base FTM peripheral base address + * @param chnlPairNumber The FTM channel pair number; options are 0, 1, 2, 3 + * @param value true: Enable fault control for this channel pair; false: No fault control + */ +static inline void FTM_SetFaultControlEnable(FTM_Type *base, ftm_chnl_t chnlPairNumber, bool value) +{ + if (value) + { + base->COMBINE |= (1U << (FTM_COMBINE_FAULTEN0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * chnlPairNumber))); + } + else + { + base->COMBINE &= ~(1U << (FTM_COMBINE_FAULTEN0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * chnlPairNumber))); + } +} + +/*! + * @brief This function enables/disables the dead time insertion in a channel pair. + * + * @param base FTM peripheral base address + * @param chnlPairNumber The FTM channel pair number; options are 0, 1, 2, 3 + * @param value true: Insert dead time in this channel pair; false: No dead time inserted + */ +static inline void FTM_SetDeadTimeEnable(FTM_Type *base, ftm_chnl_t chnlPairNumber, bool value) +{ + if (value) + { + base->COMBINE |= (1U << (FTM_COMBINE_DTEN0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * chnlPairNumber))); + } + else + { + base->COMBINE &= ~(1U << (FTM_COMBINE_DTEN0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * chnlPairNumber))); + } +} + +/*! + * @brief This function enables/disables complementary mode in a channel pair. + * + * @param base FTM peripheral base address + * @param chnlPairNumber The FTM channel pair number; options are 0, 1, 2, 3 + * @param value true: enable complementary mode; false: disable complementary mode + */ +static inline void FTM_SetComplementaryEnable(FTM_Type *base, ftm_chnl_t chnlPairNumber, bool value) +{ + if (value) + { + base->COMBINE |= (1U << (FTM_COMBINE_COMP0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * chnlPairNumber))); + } + else + { + base->COMBINE &= ~(1U << (FTM_COMBINE_COMP0_SHIFT + (FTM_COMBINE_COMBINE1_SHIFT * chnlPairNumber))); + } +} + +/*! + * @brief This function enables/disables inverting control in a channel pair. + * + * @param base FTM peripheral base address + * @param chnlPairNumber The FTM channel pair number; options are 0, 1, 2, 3 + * @param value true: enable inverting; false: disable inverting + */ +static inline void FTM_SetInvertEnable(FTM_Type *base, ftm_chnl_t chnlPairNumber, bool value) +{ + if (value) + { + base->INVCTRL |= (1U << chnlPairNumber); + } + else + { + base->INVCTRL &= ~(1U << chnlPairNumber); + } +} + +/*! @}*/ + +/*! + * @brief Enables or disables the FTM software trigger for PWM synchronization. + * + * @param base FTM peripheral base address + * @param enable true: software trigger is selected, false: software trigger is not selected + */ +static inline void FTM_SetSoftwareTrigger(FTM_Type *base, bool enable) +{ + if (enable) + { + base->SYNC |= FTM_SYNC_SWSYNC_MASK; + } + else + { + base->SYNC &= ~FTM_SYNC_SWSYNC_MASK; + } +} + +/*! + * @brief Enables or disables the FTM write protection. + * + * @param base FTM peripheral base address + * @param enable true: Write-protection is enabled, false: Write-protection is disabled + */ +static inline void FTM_SetWriteProtection(FTM_Type *base, bool enable) +{ + /* Configure write protection */ + if (enable) + { + base->FMS |= FTM_FMS_WPEN_MASK; + } + else + { + base->MODE |= FTM_MODE_WPDIS_MASK; + } +} + +#if defined(__cplusplus) +} +#endif + +/*! @}*/ + +#endif /* _FSL_FTM_H_*/ diff --git a/drivers/fsl_gpio.c b/drivers/fsl_gpio.c new file mode 100644 index 0000000..8fc068f --- /dev/null +++ b/drivers/fsl_gpio.c @@ -0,0 +1,179 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_gpio.h" + +/******************************************************************************* + * Variables + ******************************************************************************/ +static PORT_Type *const s_portBases[] = PORT_BASE_PTRS; +static GPIO_Type *const s_gpioBases[] = GPIO_BASE_PTRS; + +/******************************************************************************* +* Prototypes +******************************************************************************/ + +/*! +* @brief Gets the GPIO instance according to the GPIO base +* +* @param base GPIO peripheral base pointer(PTA, PTB, PTC, etc.) +* @retval GPIO instance +*/ +static uint32_t GPIO_GetInstance(GPIO_Type *base); + +/******************************************************************************* + * Code + ******************************************************************************/ + +static uint32_t GPIO_GetInstance(GPIO_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_GPIO_COUNT; instance++) + { + if (s_gpioBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_GPIO_COUNT); + + return instance; +} + +void GPIO_PinInit(GPIO_Type *base, uint32_t pin, const gpio_pin_config_t *config) +{ + assert(config); + + if (config->pinDirection == kGPIO_DigitalInput) + { + base->PDDR &= ~(1U << pin); + } + else + { + GPIO_WritePinOutput(base, pin, config->outputLogic); + base->PDDR |= (1U << pin); + } +} + +uint32_t GPIO_GetPinsInterruptFlags(GPIO_Type *base) +{ + uint8_t instance; + PORT_Type *portBase; + instance = GPIO_GetInstance(base); + portBase = s_portBases[instance]; + return portBase->ISFR; +} + +void GPIO_ClearPinsInterruptFlags(GPIO_Type *base, uint32_t mask) +{ + uint8_t instance; + PORT_Type *portBase; + instance = GPIO_GetInstance(base); + portBase = s_portBases[instance]; + portBase->ISFR = mask; +} + +#if defined(FSL_FEATURE_SOC_FGPIO_COUNT) && FSL_FEATURE_SOC_FGPIO_COUNT + +/******************************************************************************* + * Variables + ******************************************************************************/ +static FGPIO_Type *const s_fgpioBases[] = FGPIO_BASE_PTRS; + +/******************************************************************************* +* Prototypes +******************************************************************************/ +/*! +* @brief Gets the FGPIO instance according to the GPIO base +* +* @param base FGPIO peripheral base pointer(PTA, PTB, PTC, etc.) +* @retval FGPIO instance +*/ +static uint32_t FGPIO_GetInstance(FGPIO_Type *base); + +/******************************************************************************* + * Code + ******************************************************************************/ + +static uint32_t FGPIO_GetInstance(FGPIO_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_FGPIO_COUNT; instance++) + { + if (s_fgpioBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_FGPIO_COUNT); + + return instance; +} + +void FGPIO_PinInit(FGPIO_Type *base, uint32_t pin, const gpio_pin_config_t *config) +{ + assert(config); + + if (config->pinDirection == kGPIO_DigitalInput) + { + base->PDDR &= ~(1U << pin); + } + else + { + FGPIO_WritePinOutput(base, pin, config->outputLogic); + base->PDDR |= (1U << pin); + } +} + +uint32_t FGPIO_GetPinsInterruptFlags(FGPIO_Type *base) +{ + uint8_t instance; + instance = FGPIO_GetInstance(base); + PORT_Type *portBase; + portBase = s_portBases[instance]; + return portBase->ISFR; +} + +void FGPIO_ClearPinsInterruptFlags(FGPIO_Type *base, uint32_t mask) +{ + uint8_t instance; + instance = FGPIO_GetInstance(base); + PORT_Type *portBase; + portBase = s_portBases[instance]; + portBase->ISFR = mask; +} + +#endif /* FSL_FEATURE_SOC_FGPIO_COUNT */ diff --git a/drivers/fsl_gpio.h b/drivers/fsl_gpio.h new file mode 100644 index 0000000..d62545f --- /dev/null +++ b/drivers/fsl_gpio.h @@ -0,0 +1,389 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SDRVL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_GPIO_H_ +#define _FSL_GPIO_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup gpio + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief GPIO driver version 2.1.0. */ +#define FSL_GPIO_DRIVER_VERSION (MAKE_VERSION(2, 1, 0)) +/*@}*/ + +/*! @brief GPIO direction definition*/ +typedef enum _gpio_pin_direction +{ + kGPIO_DigitalInput = 0U, /*!< Set current pin as digital input*/ + kGPIO_DigitalOutput = 1U, /*!< Set current pin as digital output*/ +} gpio_pin_direction_t; + +/*! + * @brief The GPIO pin configuration structure. + * + * Every pin can only be configured as either output pin or input pin at a time. + * If configured as a input pin, then leave the outputConfig unused + * Note : In some use cases, the corresponding port property should be configured in advance + * with the PORT_SetPinConfig() + */ +typedef struct _gpio_pin_config +{ + gpio_pin_direction_t pinDirection; /*!< GPIO direction, input or output */ + /* Output configurations, please ignore if configured as a input one */ + uint8_t outputLogic; /*!< Set default output logic, no use in input */ +} gpio_pin_config_t; + +/*! @} */ + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @addtogroup gpio_driver + * @{ + */ + +/*! @name GPIO Configuration */ +/*@{*/ + +/*! + * @brief Initializes a GPIO pin used by the board. + * + * To initialize the GPIO, define a pin configuration, either input or output, in the user file. + * Then, call the GPIO_PinInit() function. + * + * This is an example to define an input pin or output pin configuration: + * @code + * // Define a digital input pin configuration, + * gpio_pin_config_t config = + * { + * kGPIO_DigitalInput, + * 0, + * } + * //Define a digital output pin configuration, + * gpio_pin_config_t config = + * { + * kGPIO_DigitalOutput, + * 0, + * } + * @endcode + * + * @param base GPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param pin GPIO port pin number + * @param config GPIO pin configuration pointer + */ +void GPIO_PinInit(GPIO_Type *base, uint32_t pin, const gpio_pin_config_t *config); + +/*@}*/ + +/*! @name GPIO Output Operations */ +/*@{*/ + +/*! + * @brief Sets the output level of the multiple GPIO pins to the logic 1 or 0. + * + * @param base GPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param pin GPIO pin number + * @param output GPIO pin output logic level. + * - 0: corresponding pin output low-logic level. + * - 1: corresponding pin output high-logic level. + */ +static inline void GPIO_WritePinOutput(GPIO_Type *base, uint32_t pin, uint8_t output) +{ + if (output == 0U) + { + base->PCOR = 1 << pin; + } + else + { + base->PSOR = 1 << pin; + } +} + +/*! + * @brief Sets the output level of the multiple GPIO pins to the logic 1. + * + * @param base GPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param mask GPIO pin number macro + */ +static inline void GPIO_SetPinsOutput(GPIO_Type *base, uint32_t mask) +{ + base->PSOR = mask; +} + +/*! + * @brief Sets the output level of the multiple GPIO pins to the logic 0. + * + * @param base GPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param mask GPIO pin number macro + */ +static inline void GPIO_ClearPinsOutput(GPIO_Type *base, uint32_t mask) +{ + base->PCOR = mask; +} + +/*! + * @brief Reverses current output logic of the multiple GPIO pins. + * + * @param base GPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param mask GPIO pin number macro + */ +static inline void GPIO_TogglePinsOutput(GPIO_Type *base, uint32_t mask) +{ + base->PTOR = mask; +} +/*@}*/ + +/*! @name GPIO Input Operations */ +/*@{*/ + +/*! + * @brief Reads the current input value of the whole GPIO port. + * + * @param base GPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param pin GPIO pin number + * @retval GPIO port input value + * - 0: corresponding pin input low-logic level. + * - 1: corresponding pin input high-logic level. + */ +static inline uint32_t GPIO_ReadPinInput(GPIO_Type *base, uint32_t pin) +{ + return (((base->PDIR) >> pin) & 0x01U); +} +/*@}*/ + +/*! @name GPIO Interrupt */ +/*@{*/ + +/*! + * @brief Reads whole GPIO port interrupt status flag. + * + * If a pin is configured to generate the DMA request, the corresponding flag + * is cleared automatically at the completion of the requested DMA transfer. + * Otherwise, the flag remains set until a logic one is written to that flag. + * If configured for a level sensitive interrupt that remains asserted, the flag + * is set again immediately. + * + * @param base GPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @retval Current GPIO port interrupt status flag, for example, 0x00010001 means the + * pin 0 and 17 have the interrupt. + */ +uint32_t GPIO_GetPinsInterruptFlags(GPIO_Type *base); + +/*! + * @brief Clears multiple GPIO pin interrupt status flag. + * + * @param base GPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param mask GPIO pin number macro + */ +void GPIO_ClearPinsInterruptFlags(GPIO_Type *base, uint32_t mask); + +/*@}*/ +/*! @} */ + +/*! + * @addtogroup fgpio_driver + * @{ + */ + +/* + * Introduce the FGPIO feature. + * + * The FGPIO features are only support on some of Kinetis chips. The FGPIO registers are aliased to the IOPORT + * interface. Accesses via the IOPORT interface occur in parallel with any instruction fetches and will therefore + * complete in a single cycle. This aliased Fast GPIO memory map is called FGPIO. + */ + +#if defined(FSL_FEATURE_SOC_FGPIO_COUNT) && FSL_FEATURE_SOC_FGPIO_COUNT + +/*! @name FGPIO Configuration */ +/*@{*/ + +/*! + * @brief Initializes a FGPIO pin used by the board. + * + * To initialize the FGPIO driver, define a pin configuration, either input or output, in the user file. + * Then, call the FGPIO_PinInit() function. + * + * This is an example to define an input pin or output pin configuration: + * @code + * // Define a digital input pin configuration, + * gpio_pin_config_t config = + * { + * kGPIO_DigitalInput, + * 0, + * } + * //Define a digital output pin configuration, + * gpio_pin_config_t config = + * { + * kGPIO_DigitalOutput, + * 0, + * } + * @endcode + * + * @param base FGPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param pin FGPIO port pin number + * @param config FGPIO pin configuration pointer + */ +void FGPIO_PinInit(FGPIO_Type *base, uint32_t pin, const gpio_pin_config_t *config); + +/*@}*/ + +/*! @name FGPIO Output Operations */ +/*@{*/ + +/*! + * @brief Sets the output level of the multiple FGPIO pins to the logic 1 or 0. + * + * @param base FGPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param pin FGPIO pin number + * @param output FGPIOpin output logic level. + * - 0: corresponding pin output low-logic level. + * - 1: corresponding pin output high-logic level. + */ +static inline void FGPIO_WritePinOutput(FGPIO_Type *base, uint32_t pin, uint8_t output) +{ + if (output == 0U) + { + base->PCOR = 1 << pin; + } + else + { + base->PSOR = 1 << pin; + } +} + +/*! + * @brief Sets the output level of the multiple FGPIO pins to the logic 1. + * + * @param base FGPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param mask FGPIO pin number macro + */ +static inline void FGPIO_SetPinsOutput(FGPIO_Type *base, uint32_t mask) +{ + base->PSOR = mask; +} + +/*! + * @brief Sets the output level of the multiple FGPIO pins to the logic 0. + * + * @param base FGPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param mask FGPIO pin number macro + */ +static inline void FGPIO_ClearPinsOutput(FGPIO_Type *base, uint32_t mask) +{ + base->PCOR = mask; +} + +/*! + * @brief Reverses current output logic of the multiple FGPIO pins. + * + * @param base FGPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param mask FGPIO pin number macro + */ +static inline void FGPIO_TogglePinsOutput(FGPIO_Type *base, uint32_t mask) +{ + base->PTOR = mask; +} +/*@}*/ + +/*! @name FGPIO Input Operations */ +/*@{*/ + +/*! + * @brief Reads the current input value of the whole FGPIO port. + * + * @param base FGPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param pin FGPIO pin number + * @retval FGPIO port input value + * - 0: corresponding pin input low-logic level. + * - 1: corresponding pin input high-logic level. + */ +static inline uint32_t FGPIO_ReadPinInput(FGPIO_Type *base, uint32_t pin) +{ + return (((base->PDIR) >> pin) & 0x01U); +} +/*@}*/ + +/*! @name FGPIO Interrupt */ +/*@{*/ + +/*! + * @brief Reads the whole FGPIO port interrupt status flag. + * + * If a pin is configured to generate the DMA request, the corresponding flag + * is cleared automatically at the completion of the requested DMA transfer. + * Otherwise, the flag remains set until a logic one is written to that flag. + * If configured for a level sensitive interrupt that remains asserted, the flag + * is set again immediately. + * + * @param base FGPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @retval Current FGPIO port interrupt status flags, for example, 0x00010001 means the + * pin 0 and 17 have the interrupt. + */ +uint32_t FGPIO_GetPinsInterruptFlags(FGPIO_Type *base); + +/*! + * @brief Clears the multiple FGPIO pin interrupt status flag. + * + * @param base FGPIO peripheral base pointer(GPIOA, GPIOB, GPIOC, and so on.) + * @param mask FGPIO pin number macro + */ +void FGPIO_ClearPinsInterruptFlags(FGPIO_Type *base, uint32_t mask); + +/*@}*/ + +#endif /* FSL_FEATURE_SOC_FGPIO_COUNT */ + +#if defined(__cplusplus) +} +#endif + +/*! + * @} + */ + +#endif /* _FSL_GPIO_H_*/ diff --git a/drivers/fsl_i2c.c b/drivers/fsl_i2c.c new file mode 100644 index 0000000..b51fc07 --- /dev/null +++ b/drivers/fsl_i2c.c @@ -0,0 +1,1633 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#include "fsl_i2c.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @brief i2c transfer state. */ +enum _i2c_transfer_states +{ + kIdleState = 0x0U, /*!< I2C bus idle. */ + kCheckAddressState = 0x1U, /*!< 7-bit address check state. */ + kSendCommandState = 0x2U, /*!< Send command byte phase. */ + kSendDataState = 0x3U, /*!< Send data transfer phase. */ + kReceiveDataBeginState = 0x4U, /*!< Receive data transfer phase begin. */ + kReceiveDataState = 0x5U, /*!< Receive data transfer phase. */ +}; + +/*! @brief Common sets of flags used by the driver. */ +enum _i2c_flag_constants +{ +/*! All flags which are cleared by the driver upon starting a transfer. */ +#if defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT + kClearFlags = kI2C_ArbitrationLostFlag | kI2C_IntPendingFlag | kI2C_StartDetectFlag | kI2C_StopDetectFlag, + kIrqFlags = kI2C_GlobalInterruptEnable | kI2C_StartStopDetectInterruptEnable, +#elif defined(FSL_FEATURE_I2C_HAS_STOP_DETECT) && FSL_FEATURE_I2C_HAS_STOP_DETECT + kClearFlags = kI2C_ArbitrationLostFlag | kI2C_IntPendingFlag | kI2C_StopDetectFlag, + kIrqFlags = kI2C_GlobalInterruptEnable | kI2C_StopDetectInterruptEnable, +#else + kClearFlags = kI2C_ArbitrationLostFlag | kI2C_IntPendingFlag, + kIrqFlags = kI2C_GlobalInterruptEnable, +#endif + +}; + +/*! @brief Typedef for interrupt handler. */ +typedef void (*i2c_isr_t)(I2C_Type *base, void *i2cHandle); + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/*! + * @brief Get instance number for I2C module. + * + * @param base I2C peripheral base address. + */ +uint32_t I2C_GetInstance(I2C_Type *base); + +/*! + * @brief Set up master transfer, send slave address and decide the initial + * transfer state. + * + * @param base I2C peripheral base address. + * @param handle pointer to i2c_master_handle_t structure which stores the transfer state. + * @param xfer pointer to i2c_master_transfer_t structure. + */ +static status_t I2C_InitTransferStateMachine(I2C_Type *base, i2c_master_handle_t *handle, i2c_master_transfer_t *xfer); + +/*! + * @brief Check and clear status operation. + * + * @param base I2C peripheral base address. + * @param status current i2c hardware status. + * @retval kStatus_Success No error found. + * @retval kStatus_I2C_ArbitrationLost Transfer error, arbitration lost. + * @retval kStatus_I2C_Nak Received Nak error. + */ +static status_t I2C_CheckAndClearError(I2C_Type *base, uint32_t status); + +/*! + * @brief Master run transfer state machine to perform a byte of transfer. + * + * @param base I2C peripheral base address. + * @param handle pointer to i2c_master_handle_t structure which stores the transfer state + * @param isDone input param to get whether the thing is done, true is done + * @retval kStatus_Success No error found. + * @retval kStatus_I2C_ArbitrationLost Transfer error, arbitration lost. + * @retval kStatus_I2C_Nak Received Nak error. + * @retval kStatus_I2C_Timeout Transfer error, wait signal timeout. + */ +static status_t I2C_MasterTransferRunStateMachine(I2C_Type *base, i2c_master_handle_t *handle, bool *isDone); + +/*! + * @brief I2C common interrupt handler. + * + * @param base I2C peripheral base address. + * @param handle pointer to i2c_master_handle_t structure which stores the transfer state + */ +static void I2C_TransferCommonIRQHandler(I2C_Type *base, void *handle); + +/******************************************************************************* + * Variables + ******************************************************************************/ + +/*! @brief Pointers to i2c handles for each instance. */ +static void *s_i2cHandle[FSL_FEATURE_SOC_I2C_COUNT] = {NULL}; + +/*! @brief SCL clock divider used to calculate baudrate. */ +static const uint16_t s_i2cDividerTable[] = { + 20, 22, 24, 26, 28, 30, 34, 40, 28, 32, 36, 40, 44, 48, 56, 68, + 48, 56, 64, 72, 80, 88, 104, 128, 80, 96, 112, 128, 144, 160, 192, 240, + 160, 192, 224, 256, 288, 320, 384, 480, 320, 384, 448, 512, 576, 640, 768, 960, + 640, 768, 896, 1024, 1152, 1280, 1536, 1920, 1280, 1536, 1792, 2048, 2304, 2560, 3072, 3840}; + +/*! @brief Pointers to i2c bases for each instance. */ +static I2C_Type *const s_i2cBases[] = I2C_BASE_PTRS; + +/*! @brief Pointers to i2c IRQ number for each instance. */ +static const IRQn_Type s_i2cIrqs[] = I2C_IRQS; + +/*! @brief Pointers to i2c clocks for each instance. */ +static const clock_ip_name_t s_i2cClocks[] = I2C_CLOCKS; + +/*! @brief Pointer to master IRQ handler for each instance. */ +static i2c_isr_t s_i2cMasterIsr; + +/*! @brief Pointer to slave IRQ handler for each instance. */ +static i2c_isr_t s_i2cSlaveIsr; + +/******************************************************************************* + * Codes + ******************************************************************************/ + +uint32_t I2C_GetInstance(I2C_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_I2C_COUNT; instance++) + { + if (s_i2cBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_I2C_COUNT); + + return instance; +} + +static status_t I2C_InitTransferStateMachine(I2C_Type *base, i2c_master_handle_t *handle, i2c_master_transfer_t *xfer) +{ + status_t result = kStatus_Success; + i2c_direction_t direction = xfer->direction; + uint16_t timeout = UINT16_MAX; + + /* Initialize the handle transfer information. */ + handle->transfer = *xfer; + + /* Save total transfer size. */ + handle->transferSize = xfer->dataSize; + + /* Initial transfer state. */ + if (handle->transfer.subaddressSize > 0) + { + handle->state = kSendCommandState; + if (xfer->direction == kI2C_Read) + { + direction = kI2C_Write; + } + } + else + { + handle->state = kCheckAddressState; + } + + /* Wait until the data register is ready for transmit. */ + while ((!(base->S & kI2C_TransferCompleteFlag)) && (--timeout)) + { + } + + /* Failed to start the transfer. */ + if (timeout == 0) + { + return kStatus_I2C_Timeout; + } + + /* Clear all status before transfer. */ + I2C_MasterClearStatusFlags(base, kClearFlags); + + /* If repeated start is requested, send repeated start. */ + if (handle->transfer.flags & kI2C_TransferRepeatedStartFlag) + { + result = I2C_MasterRepeatedStart(base, handle->transfer.slaveAddress, direction); + } + else /* For normal transfer, send start. */ + { + result = I2C_MasterStart(base, handle->transfer.slaveAddress, direction); + } + + return result; +} + +static status_t I2C_CheckAndClearError(I2C_Type *base, uint32_t status) +{ + status_t result = kStatus_Success; + + /* Check arbitration lost. */ + if (status & kI2C_ArbitrationLostFlag) + { + /* Clear arbitration lost flag. */ + base->S = kI2C_ArbitrationLostFlag; + result = kStatus_I2C_ArbitrationLost; + } + /* Check NAK */ + else if (status & kI2C_ReceiveNakFlag) + { + result = kStatus_I2C_Nak; + } + else + { + } + + return result; +} + +static status_t I2C_MasterTransferRunStateMachine(I2C_Type *base, i2c_master_handle_t *handle, bool *isDone) +{ + status_t result = kStatus_Success; + uint32_t statusFlags = base->S; + *isDone = false; + volatile uint8_t dummy = 0; + bool ignoreNak = ((handle->state == kSendDataState) && (handle->transfer.dataSize == 0U)) || + ((handle->state == kReceiveDataState) && (handle->transfer.dataSize == 1U)); + + /* Add this to avoid build warning. */ + dummy++; + + /* Check & clear error flags. */ + result = I2C_CheckAndClearError(base, statusFlags); + + /* Ignore Nak when it's appeared for last byte. */ + if ((result == kStatus_I2C_Nak) && ignoreNak) + { + result = kStatus_Success; + } + + if (result) + { + return result; + } + + /* Handle Check address state to check the slave address is Acked in slave + probe application. */ + if (handle->state == kCheckAddressState) + { + if (statusFlags & kI2C_ReceiveNakFlag) + { + return kStatus_I2C_Nak; + } + else + { + if (handle->transfer.direction == kI2C_Write) + { + /* Next state, send data. */ + handle->state = kSendDataState; + } + else + { + /* Next state, receive data begin. */ + handle->state = kReceiveDataBeginState; + } + } + } + + /* Run state machine. */ + switch (handle->state) + { + /* Send I2C command. */ + case kSendCommandState: + if (handle->transfer.subaddressSize) + { + handle->transfer.subaddressSize--; + base->D = ((handle->transfer.subaddress) >> (8 * handle->transfer.subaddressSize)); + } + else + { + if (handle->transfer.direction == kI2C_Write) + { + /* Next state, send data. */ + handle->state = kSendDataState; + + /* Send first byte of data. */ + if (handle->transfer.dataSize > 0) + { + base->D = *handle->transfer.data; + handle->transfer.data++; + handle->transfer.dataSize--; + } + } + else + { + /* Send repeated start and slave address. */ + result = I2C_MasterRepeatedStart(base, handle->transfer.slaveAddress, kI2C_Read); + + /* Next state, receive data begin. */ + handle->state = kReceiveDataBeginState; + } + } + break; + + /* Send I2C data. */ + case kSendDataState: + /* Send one byte of data. */ + if (handle->transfer.dataSize > 0) + { + base->D = *handle->transfer.data; + handle->transfer.data++; + handle->transfer.dataSize--; + } + else + { + *isDone = true; + } + break; + + /* Start I2C data receive. */ + case kReceiveDataBeginState: + base->C1 &= ~(I2C_C1_TX_MASK | I2C_C1_TXAK_MASK); + + /* Send nak at the last receive byte. */ + if (handle->transfer.dataSize == 1) + { + base->C1 |= I2C_C1_TXAK_MASK; + } + + /* Read dummy to release the bus. */ + dummy = base->D; + + /* Next state, receive data. */ + handle->state = kReceiveDataState; + break; + + /* Receive I2C data. */ + case kReceiveDataState: + /* Receive one byte of data. */ + if (handle->transfer.dataSize--) + { + if (handle->transfer.dataSize == 0) + { + *isDone = true; + + /* Send stop if kI2C_TransferNoStop is not asserted. */ + if (!(handle->transfer.flags & kI2C_TransferNoStopFlag)) + { + result = I2C_MasterStop(base); + } + } + + /* Send NAK at the last receive byte. */ + if (handle->transfer.dataSize == 1) + { + base->C1 |= I2C_C1_TXAK_MASK; + } + + /* Read the data byte into the transfer buffer. */ + *handle->transfer.data = base->D; + handle->transfer.data++; + } + break; + + default: + break; + } + + return result; +} + +static void I2C_TransferCommonIRQHandler(I2C_Type *base, void *handle) +{ + /* Check if master interrupt. */ + if ((base->S & kI2C_ArbitrationLostFlag) || (base->C1 & I2C_C1_MST_MASK)) + { + s_i2cMasterIsr(base, handle); + } + else + { + s_i2cSlaveIsr(base, handle); + } +} + +void I2C_MasterInit(I2C_Type *base, const i2c_master_config_t *masterConfig, uint32_t srcClock_Hz) +{ + assert(masterConfig && srcClock_Hz); + + /* Temporary register for filter read. */ + uint8_t fltReg; +#if defined(FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION) && FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION + uint8_t c2Reg; +#endif +#if defined(FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE) && FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE + uint8_t s2Reg; +#endif + /* Enable I2C clock. */ + CLOCK_EnableClock(s_i2cClocks[I2C_GetInstance(base)]); + + /* Disable I2C prior to configuring it. */ + base->C1 &= ~(I2C_C1_IICEN_MASK); + + /* Clear all flags. */ + I2C_MasterClearStatusFlags(base, kClearFlags); + + /* Configure baud rate. */ + I2C_MasterSetBaudRate(base, masterConfig->baudRate_Bps, srcClock_Hz); + +#if defined(FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION) && FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION + /* Configure high drive feature. */ + c2Reg = base->C2; + c2Reg &= ~(I2C_C2_HDRS_MASK); + c2Reg |= I2C_C2_HDRS(masterConfig->enableHighDrive); + base->C2 = c2Reg; +#endif + + /* Read out the FLT register. */ + fltReg = base->FLT; + +#if defined(FSL_FEATURE_I2C_HAS_STOP_HOLD_OFF) && FSL_FEATURE_I2C_HAS_STOP_HOLD_OFF + /* Configure the stop / hold enable. */ + fltReg &= ~(I2C_FLT_SHEN_MASK); + fltReg |= I2C_FLT_SHEN(masterConfig->enableStopHold); +#endif + + /* Configure the glitch filter value. */ + fltReg &= ~(I2C_FLT_FLT_MASK); + fltReg |= I2C_FLT_FLT(masterConfig->glitchFilterWidth); + + /* Write the register value back to the filter register. */ + base->FLT = fltReg; + +/* Enable/Disable double buffering. */ +#if defined(FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE) && FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE + s2Reg = base->S2 & (~I2C_S2_DFEN_MASK); + base->S2 = s2Reg | I2C_S2_DFEN(masterConfig->enableDoubleBuffering); +#endif + + /* Enable the I2C peripheral based on the configuration. */ + base->C1 = I2C_C1_IICEN(masterConfig->enableMaster); +} + +void I2C_MasterDeinit(I2C_Type *base) +{ + /* Disable I2C module. */ + I2C_Enable(base, false); + + /* Disable I2C clock. */ + CLOCK_DisableClock(s_i2cClocks[I2C_GetInstance(base)]); +} + +void I2C_MasterGetDefaultConfig(i2c_master_config_t *masterConfig) +{ + assert(masterConfig); + + /* Default baud rate at 100kbps. */ + masterConfig->baudRate_Bps = 100000U; + +/* Default pin high drive is disabled. */ +#if defined(FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION) && FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION + masterConfig->enableHighDrive = false; +#endif + +/* Default stop hold enable is disabled. */ +#if defined(FSL_FEATURE_I2C_HAS_STOP_HOLD_OFF) && FSL_FEATURE_I2C_HAS_STOP_HOLD_OFF + masterConfig->enableStopHold = false; +#endif + + /* Default glitch filter value is no filter. */ + masterConfig->glitchFilterWidth = 0U; + +/* Default enable double buffering. */ +#if defined(FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE) && FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE + masterConfig->enableDoubleBuffering = true; +#endif + + /* Enable the I2C peripheral. */ + masterConfig->enableMaster = true; +} + +void I2C_EnableInterrupts(I2C_Type *base, uint32_t mask) +{ +#ifdef I2C_HAS_STOP_DETECT + uint8_t fltReg; +#endif + + if (mask & kI2C_GlobalInterruptEnable) + { + base->C1 |= I2C_C1_IICIE_MASK; + } + +#if defined(FSL_FEATURE_I2C_HAS_STOP_DETECT) && FSL_FEATURE_I2C_HAS_STOP_DETECT + if (mask & kI2C_StopDetectInterruptEnable) + { + fltReg = base->FLT; + + /* Keep STOPF flag. */ + fltReg &= ~I2C_FLT_STOPF_MASK; + + /* Stop detect enable. */ + fltReg |= I2C_FLT_STOPIE_MASK; + base->FLT = fltReg; + } +#endif /* FSL_FEATURE_I2C_HAS_STOP_DETECT */ + +#if defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT + if (mask & kI2C_StartStopDetectInterruptEnable) + { + fltReg = base->FLT; + + /* Keep STARTF and STOPF flags. */ + fltReg &= ~(I2C_FLT_STOPF_MASK | I2C_FLT_STARTF_MASK); + + /* Start and stop detect enable. */ + fltReg |= I2C_FLT_SSIE_MASK; + base->FLT = fltReg; + } +#endif /* FSL_FEATURE_I2C_HAS_START_STOP_DETECT */ +} + +void I2C_DisableInterrupts(I2C_Type *base, uint32_t mask) +{ + if (mask & kI2C_GlobalInterruptEnable) + { + base->C1 &= ~I2C_C1_IICIE_MASK; + } + +#if defined(FSL_FEATURE_I2C_HAS_STOP_DETECT) && FSL_FEATURE_I2C_HAS_STOP_DETECT + if (mask & kI2C_StopDetectInterruptEnable) + { + base->FLT &= ~(I2C_FLT_STOPIE_MASK | I2C_FLT_STOPF_MASK); + } +#endif /* FSL_FEATURE_I2C_HAS_STOP_DETECT */ + +#if defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT + if (mask & kI2C_StartStopDetectInterruptEnable) + { + base->FLT &= ~(I2C_FLT_SSIE_MASK | I2C_FLT_STOPF_MASK | I2C_FLT_STARTF_MASK); + } +#endif /* FSL_FEATURE_I2C_HAS_START_STOP_DETECT */ +} + +void I2C_MasterSetBaudRate(I2C_Type *base, uint32_t baudRate_Bps, uint32_t srcClock_Hz) +{ + uint32_t multiplier; + uint32_t computedRate; + uint32_t absError; + uint32_t bestError = UINT32_MAX; + uint32_t bestMult = 0u; + uint32_t bestIcr = 0u; + uint8_t mult; + uint8_t i; + + /* Search for the settings with the lowest error. Mult is the MULT field of the I2C_F register, + * and ranges from 0-2. It selects the multiplier factor for the divider. */ + for (mult = 0u; (mult <= 2u) && (bestError != 0); ++mult) + { + multiplier = 1u << mult; + + /* Scan table to find best match. */ + for (i = 0u; i < sizeof(s_i2cDividerTable) / sizeof(uint16_t); ++i) + { + computedRate = srcClock_Hz / (multiplier * s_i2cDividerTable[i]); + absError = baudRate_Bps > computedRate ? (baudRate_Bps - computedRate) : (computedRate - baudRate_Bps); + + if (absError < bestError) + { + bestMult = mult; + bestIcr = i; + bestError = absError; + + /* If the error is 0, then we can stop searching because we won't find a better match. */ + if (absError == 0) + { + break; + } + } + } + } + + /* Set frequency register based on best settings. */ + base->F = I2C_F_MULT(bestMult) | I2C_F_ICR(bestIcr); +} + +status_t I2C_MasterStart(I2C_Type *base, uint8_t address, i2c_direction_t direction) +{ + status_t result = kStatus_Success; + uint32_t statusFlags = I2C_MasterGetStatusFlags(base); + + /* Return an error if the bus is already in use. */ + if (statusFlags & kI2C_BusBusyFlag) + { + result = kStatus_I2C_Busy; + } + else + { + /* Send the START signal. */ + base->C1 |= I2C_C1_MST_MASK | I2C_C1_TX_MASK; + +#if defined(FSL_FEATURE_I2C_HAS_DOUBLE_BUFFERING) && FSL_FEATURE_I2C_HAS_DOUBLE_BUFFERING + while (!(base->S2 & I2C_S2_EMPTY_MASK)) + { + } +#endif /* FSL_FEATURE_I2C_HAS_DOUBLE_BUFFERING */ + + base->D = (((uint32_t)address) << 1U | ((direction == kI2C_Read) ? 1U : 0U)); + } + + return result; +} + +status_t I2C_MasterRepeatedStart(I2C_Type *base, uint8_t address, i2c_direction_t direction) +{ + status_t result = kStatus_Success; + uint8_t savedMult; + uint32_t statusFlags = I2C_MasterGetStatusFlags(base); + uint8_t timeDelay = 6; + + /* Return an error if the bus is already in use, but not by us. */ + if ((statusFlags & kI2C_BusBusyFlag) && ((base->C1 & I2C_C1_MST_MASK) == 0)) + { + result = kStatus_I2C_Busy; + } + else + { + savedMult = base->F; + base->F = savedMult & (~I2C_F_MULT_MASK); + + /* We are already in a transfer, so send a repeated start. */ + base->C1 |= I2C_C1_RSTA_MASK; + + /* Restore the multiplier factor. */ + base->F = savedMult; + + /* Add some delay to wait the Re-Start signal. */ + while (timeDelay--) + { + __NOP(); + } + +#if defined(FSL_FEATURE_I2C_HAS_DOUBLE_BUFFERING) && FSL_FEATURE_I2C_HAS_DOUBLE_BUFFERING + while (!(base->S2 & I2C_S2_EMPTY_MASK)) + { + } +#endif /* FSL_FEATURE_I2C_HAS_DOUBLE_BUFFERING */ + + base->D = (((uint32_t)address) << 1U | ((direction == kI2C_Read) ? 1U : 0U)); + } + + return result; +} + +status_t I2C_MasterStop(I2C_Type *base) +{ + status_t result = kStatus_Success; + uint16_t timeout = UINT16_MAX; + + /* Issue the STOP command on the bus. */ + base->C1 &= ~(I2C_C1_MST_MASK | I2C_C1_TX_MASK | I2C_C1_TXAK_MASK); + + /* Wait until data transfer complete. */ + while ((base->S & kI2C_BusBusyFlag) && (--timeout)) + { + } + + if (timeout == 0) + { + result = kStatus_I2C_Timeout; + } + + return result; +} + +uint32_t I2C_MasterGetStatusFlags(I2C_Type *base) +{ + uint32_t statusFlags = base->S; + +#ifdef I2C_HAS_STOP_DETECT + /* Look up the STOPF bit from the filter register. */ + if (base->FLT & I2C_FLT_STOPF_MASK) + { + statusFlags |= kI2C_StopDetectFlag; + } +#endif + +#if defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT + /* Look up the STARTF bit from the filter register. */ + if (base->FLT & I2C_FLT_STARTF_MASK) + { + statusFlags |= kI2C_StartDetectFlag; + } +#endif /* FSL_FEATURE_I2C_HAS_START_STOP_DETECT */ + + return statusFlags; +} + +status_t I2C_MasterWriteBlocking(I2C_Type *base, const uint8_t *txBuff, size_t txSize) +{ + status_t result = kStatus_Success; + uint8_t statusFlags = 0; + + /* Wait until the data register is ready for transmit. */ + while (!(base->S & kI2C_TransferCompleteFlag)) + { + } + + /* Clear the IICIF flag. */ + base->S = kI2C_IntPendingFlag; + + /* Setup the I2C peripheral to transmit data. */ + base->C1 |= I2C_C1_TX_MASK; + + while (txSize--) + { + /* Send a byte of data. */ + base->D = *txBuff++; + + /* Wait until data transfer complete. */ + while (!(base->S & kI2C_IntPendingFlag)) + { + } + + statusFlags = base->S; + + /* Clear the IICIF flag. */ + base->S = kI2C_IntPendingFlag; + + /* Check if arbitration lost or no acknowledgement (NAK), return failure status. */ + if (statusFlags & kI2C_ArbitrationLostFlag) + { + base->S = kI2C_ArbitrationLostFlag; + result = kStatus_I2C_ArbitrationLost; + } + + if ((statusFlags & kI2C_ReceiveNakFlag) && txSize) + { + base->S = kI2C_ReceiveNakFlag; + result = kStatus_I2C_Nak; + } + + if (result != kStatus_Success) + { + /* Breaking out of the send loop. */ + break; + } + } + + return result; +} + +status_t I2C_MasterReadBlocking(I2C_Type *base, uint8_t *rxBuff, size_t rxSize) +{ + status_t result = kStatus_Success; + volatile uint8_t dummy = 0; + + /* Add this to avoid build warning. */ + dummy++; + + /* Wait until the data register is ready for transmit. */ + while (!(base->S & kI2C_TransferCompleteFlag)) + { + } + + /* Clear the IICIF flag. */ + base->S = kI2C_IntPendingFlag; + + /* Setup the I2C peripheral to receive data. */ + base->C1 &= ~(I2C_C1_TX_MASK | I2C_C1_TXAK_MASK); + + /* If rxSize equals 1, configure to send NAK. */ + if (rxSize == 1) + { + /* Issue NACK on read. */ + base->C1 |= I2C_C1_TXAK_MASK; + } + + /* Do dummy read. */ + dummy = base->D; + + while ((rxSize--)) + { + /* Wait until data transfer complete. */ + while (!(base->S & kI2C_IntPendingFlag)) + { + } + + /* Clear the IICIF flag. */ + base->S = kI2C_IntPendingFlag; + + /* Single byte use case. */ + if (rxSize == 0) + { + /* Read the final byte. */ + result = I2C_MasterStop(base); + } + + if (rxSize == 1) + { + /* Issue NACK on read. */ + base->C1 |= I2C_C1_TXAK_MASK; + } + + /* Read from the data register. */ + *rxBuff++ = base->D; + } + + return result; +} + +status_t I2C_MasterTransferBlocking(I2C_Type *base, i2c_master_transfer_t *xfer) +{ + assert(xfer); + + i2c_direction_t direction = xfer->direction; + status_t result = kStatus_Success; + + /* Clear all status before transfer. */ + I2C_MasterClearStatusFlags(base, kClearFlags); + + /* Wait until ready to complete. */ + while (!(base->S & kI2C_TransferCompleteFlag)) + { + } + + /* Change to send write address when it's a read operation with command. */ + if ((xfer->subaddressSize > 0) && (xfer->direction == kI2C_Read)) + { + direction = kI2C_Write; + } + + /* If repeated start is requested, send repeated start. */ + if (xfer->flags & kI2C_TransferRepeatedStartFlag) + { + result = I2C_MasterRepeatedStart(base, xfer->slaveAddress, direction); + } + else /* For normal transfer, send start. */ + { + result = I2C_MasterStart(base, xfer->slaveAddress, direction); + } + + /* Return if error. */ + if (result) + { + return result; + } + + /* Send subaddress. */ + if (xfer->subaddressSize) + { + do + { + /* Wait until data transfer complete. */ + while (!(base->S & kI2C_IntPendingFlag)) + { + } + + /* Clear interrupt pending flag. */ + base->S = kI2C_IntPendingFlag; + + /* Check if there's transfer error. */ + result = I2C_CheckAndClearError(base, base->S); + + if (result) + { + if (result == kStatus_I2C_Nak) + { + I2C_MasterStop(base); + } + + return result; + } + + xfer->subaddressSize--; + base->D = ((xfer->subaddress) >> (8 * xfer->subaddressSize)); + + } while ((xfer->subaddressSize > 0) && (result == kStatus_Success)); + + if (xfer->direction == kI2C_Read) + { + /* Wait until data transfer complete. */ + while (!(base->S & kI2C_IntPendingFlag)) + { + } + + /* Clear pending flag. */ + base->S = kI2C_IntPendingFlag; + + /* Check if there's transfer error. */ + result = I2C_CheckAndClearError(base, base->S); + + if (result) + { + if (result == kStatus_I2C_Nak) + { + I2C_MasterStop(base); + } + + return result; + } + + /* Send repeated start and slave address. */ + result = I2C_MasterRepeatedStart(base, xfer->slaveAddress, kI2C_Read); + + /* Return if error. */ + if (result) + { + return result; + } + } + } + + /* Wait until address + command transfer complete. */ + while (!(base->S & kI2C_IntPendingFlag)) + { + } + + /* Check if there's transfer error. */ + result = I2C_CheckAndClearError(base, base->S); + + /* Return if error. */ + if (result) + { + if (result == kStatus_I2C_Nak) + { + I2C_MasterStop(base); + } + + return result; + } + + /* Transmit data. */ + if ((xfer->direction == kI2C_Write) && (xfer->dataSize > 0)) + { + /* Send Data. */ + result = I2C_MasterWriteBlocking(base, xfer->data, xfer->dataSize); + + if (((result == kStatus_Success) && (!(xfer->flags & kI2C_TransferNoStopFlag))) || (result == kStatus_I2C_Nak)) + { + /* Clear the IICIF flag. */ + base->S = kI2C_IntPendingFlag; + + /* Send stop. */ + result = I2C_MasterStop(base); + } + } + + /* Receive Data. */ + if ((xfer->direction == kI2C_Read) && (xfer->dataSize > 0)) + { + result = I2C_MasterReadBlocking(base, xfer->data, xfer->dataSize); + } + + return result; +} + +void I2C_MasterTransferCreateHandle(I2C_Type *base, + i2c_master_handle_t *handle, + i2c_master_transfer_callback_t callback, + void *userData) +{ + assert(handle); + + uint32_t instance = I2C_GetInstance(base); + + /* Zero handle. */ + memset(handle, 0, sizeof(*handle)); + + /* Set callback and userData. */ + handle->completionCallback = callback; + handle->userData = userData; + + /* Save the context in global variables to support the double weak mechanism. */ + s_i2cHandle[instance] = handle; + + /* Save master interrupt handler. */ + s_i2cMasterIsr = I2C_MasterTransferHandleIRQ; + + /* Enable NVIC interrupt. */ + EnableIRQ(s_i2cIrqs[instance]); +} + +status_t I2C_MasterTransferNonBlocking(I2C_Type *base, i2c_master_handle_t *handle, i2c_master_transfer_t *xfer) +{ + assert(handle); + assert(xfer); + + status_t result = kStatus_Success; + + /* Check if the I2C bus is idle - if not return busy status. */ + if (handle->state != kIdleState) + { + result = kStatus_I2C_Busy; + } + else + { + /* Start up the master transfer state machine. */ + result = I2C_InitTransferStateMachine(base, handle, xfer); + + if (result == kStatus_Success) + { + /* Enable the I2C interrupts. */ + I2C_EnableInterrupts(base, kI2C_GlobalInterruptEnable); + } + } + + return result; +} + +void I2C_MasterTransferAbort(I2C_Type *base, i2c_master_handle_t *handle) +{ + assert(handle); + + /* Disable interrupt. */ + I2C_DisableInterrupts(base, kI2C_GlobalInterruptEnable); + + /* Reset the state to idle. */ + handle->state = kIdleState; +} + +status_t I2C_MasterTransferGetCount(I2C_Type *base, i2c_master_handle_t *handle, size_t *count) +{ + assert(handle); + + if (!count) + { + return kStatus_InvalidArgument; + } + + *count = handle->transferSize - handle->transfer.dataSize; + + return kStatus_Success; +} + +void I2C_MasterTransferHandleIRQ(I2C_Type *base, void *i2cHandle) +{ + assert(i2cHandle); + + i2c_master_handle_t *handle = (i2c_master_handle_t *)i2cHandle; + status_t result = kStatus_Success; + bool isDone; + + /* Clear the interrupt flag. */ + base->S = kI2C_IntPendingFlag; + + /* Check transfer complete flag. */ + result = I2C_MasterTransferRunStateMachine(base, handle, &isDone); + + if (isDone || result) + { + /* Send stop command if transfer done or received Nak. */ + if ((!(handle->transfer.flags & kI2C_TransferNoStopFlag)) || (result == kStatus_I2C_Nak)) + { + /* Ensure stop command is a need. */ + if ((base->C1 & I2C_C1_MST_MASK)) + { + if (I2C_MasterStop(base) != kStatus_Success) + { + result = kStatus_I2C_Timeout; + } + } + } + + /* Restore handle to idle state. */ + handle->state = kIdleState; + + /* Disable interrupt. */ + I2C_DisableInterrupts(base, kI2C_GlobalInterruptEnable); + + /* Call the callback function after the function has completed. */ + if (handle->completionCallback) + { + handle->completionCallback(base, handle, result, handle->userData); + } + } +} + +void I2C_SlaveInit(I2C_Type *base, const i2c_slave_config_t *slaveConfig) +{ + assert(slaveConfig); + + uint8_t tmpReg; + + CLOCK_EnableClock(s_i2cClocks[I2C_GetInstance(base)]); + + /* Configure addressing mode. */ + switch (slaveConfig->addressingMode) + { + case kI2C_Address7bit: + base->A1 = ((uint32_t)(slaveConfig->slaveAddress)) << 1U; + break; + + case kI2C_RangeMatch: + assert(slaveConfig->slaveAddress < slaveConfig->upperAddress); + base->A1 = ((uint32_t)(slaveConfig->slaveAddress)) << 1U; + base->RA = ((uint32_t)(slaveConfig->upperAddress)) << 1U; + base->C2 |= I2C_C2_RMEN_MASK; + break; + + default: + break; + } + + /* Configure low power wake up feature. */ + tmpReg = base->C1; + tmpReg &= ~I2C_C1_WUEN_MASK; + base->C1 = tmpReg | I2C_C1_WUEN(slaveConfig->enableWakeUp) | I2C_C1_IICEN(slaveConfig->enableSlave); + + /* Configure general call & baud rate control & high drive feature. */ + tmpReg = base->C2; + tmpReg &= ~(I2C_C2_SBRC_MASK | I2C_C2_GCAEN_MASK); + tmpReg |= I2C_C2_SBRC(slaveConfig->enableBaudRateCtl) | I2C_C2_GCAEN(slaveConfig->enableGeneralCall); +#if defined(FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION) && FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION + tmpReg &= ~I2C_C2_HDRS_MASK; + tmpReg |= I2C_C2_HDRS(slaveConfig->enableHighDrive); +#endif + base->C2 = tmpReg; + +/* Enable/Disable double buffering. */ +#if defined(FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE) && FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE + tmpReg = base->S2 & (~I2C_S2_DFEN_MASK); + base->S2 = tmpReg | I2C_S2_DFEN(slaveConfig->enableDoubleBuffering); +#endif +} + +void I2C_SlaveDeinit(I2C_Type *base) +{ + /* Disable I2C module. */ + I2C_Enable(base, false); + + /* Disable I2C clock. */ + CLOCK_DisableClock(s_i2cClocks[I2C_GetInstance(base)]); +} + +void I2C_SlaveGetDefaultConfig(i2c_slave_config_t *slaveConfig) +{ + assert(slaveConfig); + + /* By default slave is addressed with 7-bit address. */ + slaveConfig->addressingMode = kI2C_Address7bit; + + /* General call mode is disabled by default. */ + slaveConfig->enableGeneralCall = false; + + /* Slave address match waking up MCU from low power mode is disabled. */ + slaveConfig->enableWakeUp = false; + +#if defined(FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION) && FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION + /* Default pin high drive is disabled. */ + slaveConfig->enableHighDrive = false; +#endif + + /* Independent slave mode baud rate at maximum frequency is disabled. */ + slaveConfig->enableBaudRateCtl = false; + +/* Default enable double buffering. */ +#if defined(FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE) && FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE + slaveConfig->enableDoubleBuffering = true; +#endif + + /* Enable the I2C peripheral. */ + slaveConfig->enableSlave = true; +} + +status_t I2C_SlaveWriteBlocking(I2C_Type *base, const uint8_t *txBuff, size_t txSize) +{ + status_t result = kStatus_Success; + volatile uint8_t dummy = 0; + + /* Add this to avoid build warning. */ + dummy++; + +#if defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT + /* Check start flag. */ + while (!(base->FLT & I2C_FLT_STARTF_MASK)) + { + } + /* Clear STARTF flag. */ + base->FLT |= I2C_FLT_STARTF_MASK; + /* Clear the IICIF flag. */ + base->S = kI2C_IntPendingFlag; +#endif /* FSL_FEATURE_I2C_HAS_START_STOP_DETECT */ + + /* Wait for address match flag. */ + while (!(base->S & kI2C_AddressMatchFlag)) + { + } + + /* Read dummy to release bus. */ + dummy = base->D; + + result = I2C_MasterWriteBlocking(base, txBuff, txSize); + + /* Switch to receive mode. */ + base->C1 &= ~(I2C_C1_TX_MASK | I2C_C1_TXAK_MASK); + + /* Read dummy to release bus. */ + dummy = base->D; + + return result; +} + +void I2C_SlaveReadBlocking(I2C_Type *base, uint8_t *rxBuff, size_t rxSize) +{ + volatile uint8_t dummy = 0; + + /* Add this to avoid build warning. */ + dummy++; + +/* Wait until address match. */ +#if defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT + /* Check start flag. */ + while (!(base->FLT & I2C_FLT_STARTF_MASK)) + { + } + /* Clear STARTF flag. */ + base->FLT |= I2C_FLT_STARTF_MASK; + /* Clear the IICIF flag. */ + base->S = kI2C_IntPendingFlag; +#endif /* FSL_FEATURE_I2C_HAS_START_STOP_DETECT */ + + /* Wait for address match and int pending flag. */ + while (!(base->S & kI2C_AddressMatchFlag)) + { + } + while (!(base->S & kI2C_IntPendingFlag)) + { + } + + /* Read dummy to release bus. */ + dummy = base->D; + + /* Clear the IICIF flag. */ + base->S = kI2C_IntPendingFlag; + + /* Setup the I2C peripheral to receive data. */ + base->C1 &= ~(I2C_C1_TX_MASK); + + while (rxSize--) + { + /* Wait until data transfer complete. */ + while (!(base->S & kI2C_IntPendingFlag)) + { + } + /* Clear the IICIF flag. */ + base->S = kI2C_IntPendingFlag; + + /* Read from the data register. */ + *rxBuff++ = base->D; + } +} + +void I2C_SlaveTransferCreateHandle(I2C_Type *base, + i2c_slave_handle_t *handle, + i2c_slave_transfer_callback_t callback, + void *userData) +{ + assert(handle); + + uint32_t instance = I2C_GetInstance(base); + + /* Zero handle. */ + memset(handle, 0, sizeof(*handle)); + + /* Set callback and userData. */ + handle->callback = callback; + handle->userData = userData; + + /* Save the context in global variables to support the double weak mechanism. */ + s_i2cHandle[instance] = handle; + + /* Save slave interrupt handler. */ + s_i2cSlaveIsr = I2C_SlaveTransferHandleIRQ; + + /* Enable NVIC interrupt. */ + EnableIRQ(s_i2cIrqs[instance]); +} + +status_t I2C_SlaveTransferNonBlocking(I2C_Type *base, i2c_slave_handle_t *handle, uint32_t eventMask) +{ + assert(handle); + + /* Check if the I2C bus is idle - if not return busy status. */ + if (handle->isBusy) + { + return kStatus_I2C_Busy; + } + else + { + /* Disable LPI2C IRQ sources while we configure stuff. */ + I2C_DisableInterrupts(base, kIrqFlags); + + /* Clear transfer in handle. */ + memset(&handle->transfer, 0, sizeof(handle->transfer)); + + /* Record that we're busy. */ + handle->isBusy = true; + + /* Set up event mask. tx and rx are always enabled. */ + handle->eventMask = eventMask | kI2C_SlaveTransmitEvent | kI2C_SlaveReceiveEvent; + + /* Clear all flags. */ + I2C_SlaveClearStatusFlags(base, kClearFlags); + + /* Enable I2C internal IRQ sources. NVIC IRQ was enabled in CreateHandle() */ + I2C_EnableInterrupts(base, kIrqFlags); + } + + return kStatus_Success; +} + +void I2C_SlaveTransferAbort(I2C_Type *base, i2c_slave_handle_t *handle) +{ + assert(handle); + + if (handle->isBusy) + { + /* Disable interrupts. */ + I2C_DisableInterrupts(base, kIrqFlags); + + /* Reset transfer info. */ + memset(&handle->transfer, 0, sizeof(handle->transfer)); + + /* Reset the state to idle. */ + handle->isBusy = false; + } +} + +status_t I2C_SlaveTransferGetCount(I2C_Type *base, i2c_slave_handle_t *handle, size_t *count) +{ + assert(handle); + + if (!count) + { + return kStatus_InvalidArgument; + } + + /* Catch when there is not an active transfer. */ + if (!handle->isBusy) + { + *count = 0; + return kStatus_NoTransferInProgress; + } + + /* For an active transfer, just return the count from the handle. */ + *count = handle->transfer.transferredCount; + + return kStatus_Success; +} + +void I2C_SlaveTransferHandleIRQ(I2C_Type *base, void *i2cHandle) +{ + assert(i2cHandle); + + uint16_t status; + bool doTransmit = false; + i2c_slave_handle_t *handle = (i2c_slave_handle_t *)i2cHandle; + i2c_slave_transfer_t *xfer; + volatile uint8_t dummy = 0; + + /* Add this to avoid build warning. */ + dummy++; + + status = I2C_SlaveGetStatusFlags(base); + xfer = &(handle->transfer); + +#ifdef I2C_HAS_STOP_DETECT + /* Check stop flag. */ + if (status & kI2C_StopDetectFlag) + { + I2C_MasterClearStatusFlags(base, kI2C_StopDetectFlag); + + /* Clear the interrupt flag. */ + base->S = kI2C_IntPendingFlag; + + /* Call slave callback if this is the STOP of the transfer. */ + if (handle->isBusy) + { + xfer->event = kI2C_SlaveCompletionEvent; + xfer->completionStatus = kStatus_Success; + handle->isBusy = false; + + if ((handle->eventMask & xfer->event) && (handle->callback)) + { + handle->callback(base, xfer, handle->userData); + } + } + + return; + } +#endif /* I2C_HAS_STOP_DETECT */ + +#if defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT + /* Check start flag. */ + if (status & kI2C_StartDetectFlag) + { + I2C_MasterClearStatusFlags(base, kI2C_StartDetectFlag); + + /* Clear the interrupt flag. */ + base->S = kI2C_IntPendingFlag; + + xfer->event = kI2C_SlaveStartEvent; + + if ((handle->eventMask & xfer->event) && (handle->callback)) + { + handle->callback(base, xfer, handle->userData); + } + + if (!(status & kI2C_AddressMatchFlag)) + { + return; + } + } +#endif /* FSL_FEATURE_I2C_HAS_START_STOP_DETECT */ + + /* Clear the interrupt flag. */ + base->S = kI2C_IntPendingFlag; + + /* Check NAK */ + if (status & kI2C_ReceiveNakFlag) + { + /* Set receive mode. */ + base->C1 &= ~(I2C_C1_TX_MASK | I2C_C1_TXAK_MASK); + + /* Read dummy. */ + dummy = base->D; + + if (handle->transfer.dataSize != 0) + { + xfer->event = kI2C_SlaveCompletionEvent; + xfer->completionStatus = kStatus_I2C_Nak; + handle->isBusy = false; + + if ((handle->eventMask & xfer->event) && (handle->callback)) + { + handle->callback(base, xfer, handle->userData); + } + } + else + { +#ifndef I2C_HAS_STOP_DETECT + xfer->event = kI2C_SlaveCompletionEvent; + xfer->completionStatus = kStatus_Success; + handle->isBusy = false; + + if ((handle->eventMask & xfer->event) && (handle->callback)) + { + handle->callback(base, xfer, handle->userData); + } +#endif /* !FSL_FEATURE_I2C_HAS_START_STOP_DETECT or !FSL_FEATURE_I2C_HAS_STOP_DETECT */ + } + } + /* Check address match. */ + else if (status & kI2C_AddressMatchFlag) + { + handle->isBusy = true; + xfer->event = kI2C_SlaveAddressMatchEvent; + + if ((handle->eventMask & xfer->event) && (handle->callback)) + { + handle->callback(base, xfer, handle->userData); + } + + /* Slave transmit, master reading from slave. */ + if (status & kI2C_TransferDirectionFlag) + { + /* Change direction to send data. */ + base->C1 |= I2C_C1_TX_MASK; + + doTransmit = true; + } + else + { + /* Slave receive, master writing to slave. */ + base->C1 &= ~(I2C_C1_TX_MASK | I2C_C1_TXAK_MASK); + + /* Read dummy to release the bus. */ + dummy = base->D; + } + } + /* Check transfer complete flag. */ + else if (status & kI2C_TransferCompleteFlag) + { + /* Slave transmit, master reading from slave. */ + if (status & kI2C_TransferDirectionFlag) + { + doTransmit = true; + } + else + { + /* If we're out of data, invoke callback to get more. */ + if ((!xfer->data) || (!xfer->dataSize)) + { + xfer->event = kI2C_SlaveReceiveEvent; + + if (handle->callback) + { + handle->callback(base, xfer, handle->userData); + } + + /* Clear the transferred count now that we have a new buffer. */ + xfer->transferredCount = 0; + } + + /* Slave receive, master writing to slave. */ + uint8_t data = base->D; + + if (handle->transfer.dataSize) + { + /* Receive data. */ + *handle->transfer.data++ = data; + handle->transfer.dataSize--; + xfer->transferredCount++; + if (!handle->transfer.dataSize) + { +#ifndef I2C_HAS_STOP_DETECT + xfer->event = kI2C_SlaveCompletionEvent; + xfer->completionStatus = kStatus_Success; + handle->isBusy = false; + + /* Proceed receive complete event. */ + if ((handle->eventMask & xfer->event) && (handle->callback)) + { + handle->callback(base, xfer, handle->userData); + } +#endif /* !FSL_FEATURE_I2C_HAS_START_STOP_DETECT or !FSL_FEATURE_I2C_HAS_STOP_DETECT */ + } + } + } + } + else + { + /* Read dummy to release bus. */ + dummy = base->D; + } + + /* Send data if there is the need. */ + if (doTransmit) + { + /* If we're out of data, invoke callback to get more. */ + if ((!xfer->data) || (!xfer->dataSize)) + { + xfer->event = kI2C_SlaveTransmitEvent; + + if (handle->callback) + { + handle->callback(base, xfer, handle->userData); + } + + /* Clear the transferred count now that we have a new buffer. */ + xfer->transferredCount = 0; + } + + if (handle->transfer.dataSize) + { + /* Send data. */ + base->D = *handle->transfer.data++; + handle->transfer.dataSize--; + xfer->transferredCount++; + } + else + { + /* Switch to receive mode. */ + base->C1 &= ~(I2C_C1_TX_MASK | I2C_C1_TXAK_MASK); + + /* Read dummy to release bus. */ + dummy = base->D; + +#ifndef I2C_HAS_STOP_DETECT + xfer->event = kI2C_SlaveCompletionEvent; + xfer->completionStatus = kStatus_Success; + handle->isBusy = false; + + /* Proceed txdone event. */ + if ((handle->eventMask & xfer->event) && (handle->callback)) + { + handle->callback(base, xfer, handle->userData); + } +#endif /* !FSL_FEATURE_I2C_HAS_START_STOP_DETECT or !FSL_FEATURE_I2C_HAS_STOP_DETECT */ + } + } +} + +void I2C0_DriverIRQHandler(void) +{ + I2C_TransferCommonIRQHandler(I2C0, s_i2cHandle[0]); +} + +#if (FSL_FEATURE_SOC_I2C_COUNT > 1) +void I2C1_DriverIRQHandler(void) +{ + I2C_TransferCommonIRQHandler(I2C1, s_i2cHandle[1]); +} +#endif /* I2C COUNT > 1 */ + +#if (FSL_FEATURE_SOC_I2C_COUNT > 2) +void I2C2_DriverIRQHandler(void) +{ + I2C_TransferCommonIRQHandler(I2C2, s_i2cHandle[2]); +} +#endif /* I2C COUNT > 2 */ +#if (FSL_FEATURE_SOC_I2C_COUNT > 3) +void I2C3_DriverIRQHandler(void) +{ + I2C_TransferCommonIRQHandler(I2C3, s_i2cHandle[3]); +} +#endif /* I2C COUNT > 3 */ diff --git a/drivers/fsl_i2c.h b/drivers/fsl_i2c.h new file mode 100644 index 0000000..7117fd5 --- /dev/null +++ b/drivers/fsl_i2c.h @@ -0,0 +1,788 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_I2C_H_ +#define _FSL_I2C_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup i2c_driver + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief I2C driver version 2.0.1. */ +#define FSL_I2C_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) +/*@}*/ + +#if (defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT || \ + defined(FSL_FEATURE_I2C_HAS_STOP_DETECT) && FSL_FEATURE_I2C_HAS_STOP_DETECT) +#define I2C_HAS_STOP_DETECT +#endif /* FSL_FEATURE_I2C_HAS_START_STOP_DETECT / FSL_FEATURE_I2C_HAS_STOP_DETECT */ + +/*! @brief I2C status return codes. */ +enum _i2c_status +{ + kStatus_I2C_Busy = MAKE_STATUS(kStatusGroup_I2C, 0), /*!< I2C is busy with current transfer. */ + kStatus_I2C_Idle = MAKE_STATUS(kStatusGroup_I2C, 1), /*!< Bus is Idle. */ + kStatus_I2C_Nak = MAKE_STATUS(kStatusGroup_I2C, 2), /*!< NAK received during transfer. */ + kStatus_I2C_ArbitrationLost = MAKE_STATUS(kStatusGroup_I2C, 3), /*!< Arbitration lost during transfer. */ + kStatus_I2C_Timeout = MAKE_STATUS(kStatusGroup_I2C, 4), /*!< Wait event timeout. */ +}; + +/*! + * @brief I2C peripheral flags + * + * The following status register flags can be cleared: + * - #kI2C_ArbitrationLostFlag + * - #kI2C_IntPendingFlag + * - #kI2C_StartDetectFlag + * - #kI2C_StopDetectFlag + * + * @note These enumerations are meant to be OR'd together to form a bit mask. + * + */ +enum _i2c_flags +{ + kI2C_ReceiveNakFlag = I2C_S_RXAK_MASK, /*!< I2C receive NAK flag. */ + kI2C_IntPendingFlag = I2C_S_IICIF_MASK, /*!< I2C interrupt pending flag. */ + kI2C_TransferDirectionFlag = I2C_S_SRW_MASK, /*!< I2C transfer direction flag. */ + kI2C_RangeAddressMatchFlag = I2C_S_RAM_MASK, /*!< I2C range address match flag. */ + kI2C_ArbitrationLostFlag = I2C_S_ARBL_MASK, /*!< I2C arbitration lost flag. */ + kI2C_BusBusyFlag = I2C_S_BUSY_MASK, /*!< I2C bus busy flag. */ + kI2C_AddressMatchFlag = I2C_S_IAAS_MASK, /*!< I2C address match flag. */ + kI2C_TransferCompleteFlag = I2C_S_TCF_MASK, /*!< I2C transfer complete flag. */ +#ifdef I2C_HAS_STOP_DETECT + kI2C_StopDetectFlag = I2C_FLT_STOPF_MASK << 8, /*!< I2C stop detect flag. */ +#endif /* FSL_FEATURE_I2C_HAS_START_STOP_DETECT / FSL_FEATURE_I2C_HAS_STOP_DETECT */ + +#if defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT + kI2C_StartDetectFlag = I2C_FLT_STARTF_MASK << 8, /*!< I2C start detect flag. */ +#endif /* FSL_FEATURE_I2C_HAS_START_STOP_DETECT */ +}; + +/*! @brief I2C feature interrupt source. */ +enum _i2c_interrupt_enable +{ + kI2C_GlobalInterruptEnable = I2C_C1_IICIE_MASK, /*!< I2C global interrupt. */ + +#if defined(FSL_FEATURE_I2C_HAS_STOP_DETECT) && FSL_FEATURE_I2C_HAS_STOP_DETECT + kI2C_StopDetectInterruptEnable = I2C_FLT_STOPIE_MASK, /*!< I2C stop detect interrupt. */ +#endif /* FSL_FEATURE_I2C_HAS_STOP_DETECT */ + +#if defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT + kI2C_StartStopDetectInterruptEnable = I2C_FLT_SSIE_MASK, /*!< I2C start&stop detect interrupt. */ +#endif /* FSL_FEATURE_I2C_HAS_START_STOP_DETECT */ +}; + +/*! @brief Direction of master and slave transfers. */ +typedef enum _i2c_direction +{ + kI2C_Write = 0x0U, /*!< Master transmit to slave. */ + kI2C_Read = 0x1U, /*!< Master receive from slave. */ +} i2c_direction_t; + +/*! @brief Addressing mode. */ +typedef enum _i2c_slave_address_mode +{ + kI2C_Address7bit = 0x0U, /*!< 7-bit addressing mode. */ + kI2C_RangeMatch = 0X2U, /*!< Range address match addressing mode. */ +} i2c_slave_address_mode_t; + +/*! @brief I2C transfer control flag. */ +enum _i2c_master_transfer_flags +{ + kI2C_TransferDefaultFlag = 0x0U, /*!< Transfer starts with a start signal, stops with a stop signal. */ + kI2C_TransferNoStartFlag = 0x1U, /*!< Transfer starts without a start signal. */ + kI2C_TransferRepeatedStartFlag = 0x2U, /*!< Transfer starts with a repeated start signal. */ + kI2C_TransferNoStopFlag = 0x4U, /*!< Transfer ends without a stop signal. */ +}; + +/*! + * @brief Set of events sent to the callback for nonblocking slave transfers. + * + * These event enumerations are used for two related purposes. First, a bit mask created by OR'ing together + * events is passed to I2C_SlaveTransferNonBlocking() in order to specify which events to enable. + * Then, when the slave callback is invoked, it is passed the current event through its @a transfer + * parameter. + * + * @note These enumerations are meant to be OR'd together to form a bit mask of events. + */ +typedef enum _i2c_slave_transfer_event +{ + kI2C_SlaveAddressMatchEvent = 0x01U, /*!< Received the slave address after a start or repeated start. */ + kI2C_SlaveTransmitEvent = 0x02U, /*!< Callback is requested to provide data to transmit + (slave-transmitter role). */ + kI2C_SlaveReceiveEvent = 0x04U, /*!< Callback is requested to provide a buffer in which to place received + data (slave-receiver role). */ + kI2C_SlaveTransmitAckEvent = 0x08U, /*!< Callback needs to either transmit an ACK or NACK. */ +#if defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT + kI2C_SlaveStartEvent = 0x10U, /*!< A start/repeated start was detected. */ +#endif + kI2C_SlaveCompletionEvent = 0x20U, /*!< A stop was detected or finished transfer, completing the transfer. */ + + /*! Bit mask of all available events. */ + kI2C_SlaveAllEvents = kI2C_SlaveAddressMatchEvent | kI2C_SlaveTransmitEvent | kI2C_SlaveReceiveEvent | +#if defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT + kI2C_SlaveStartEvent | +#endif + kI2C_SlaveCompletionEvent, +} i2c_slave_transfer_event_t; + +/*! @brief I2C master user configuration. */ +typedef struct _i2c_master_config +{ + bool enableMaster; /*!< Enables the I2C peripheral at initialization time. */ +#if defined(FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION) && FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION + bool enableHighDrive; /*!< Controls the drive capability of the I2C pads. */ +#endif +#if defined(FSL_FEATURE_I2C_HAS_STOP_HOLD_OFF) && FSL_FEATURE_I2C_HAS_STOP_HOLD_OFF + bool enableStopHold; /*!< Controls the stop hold enable. */ +#endif +#if defined(FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE) && FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE + bool enableDoubleBuffering; /*!< Controls double buffer enable, notice that + enabling the double buffer disables the clock stretch. */ +#endif + uint32_t baudRate_Bps; /*!< Baud rate configuration of I2C peripheral. */ + uint8_t glitchFilterWidth; /*!< Controls the width of the glitch. */ +} i2c_master_config_t; + +/*! @brief I2C slave user configuration. */ +typedef struct _i2c_slave_config +{ + bool enableSlave; /*!< Enables the I2C peripheral at initialization time. */ + bool enableGeneralCall; /*!< Enable general call addressing mode. */ + bool enableWakeUp; /*!< Enables/disables waking up MCU from low-power mode. */ +#if defined(FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION) && FSL_FEATURE_I2C_HAS_HIGH_DRIVE_SELECTION + bool enableHighDrive; /*!< Controls the drive capability of the I2C pads. */ +#endif +#if defined(FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE) && FSL_FEATURE_I2C_HAS_DOUBLE_BUFFER_ENABLE + bool enableDoubleBuffering; /*!< Controls double buffer enable, notice that + enabling the double buffer disables the clock stretch. */ +#endif + bool enableBaudRateCtl; /*!< Enables/disables independent slave baud rate on SCL in very fast I2C modes. */ + uint16_t slaveAddress; /*!< Slave address configuration. */ + uint16_t upperAddress; /*!< Maximum boundary slave address used in range matching mode. */ + i2c_slave_address_mode_t addressingMode; /*!< Addressing mode configuration of i2c_slave_address_mode_config_t. */ +} i2c_slave_config_t; + +/*! @brief I2C master handle typedef. */ +typedef struct _i2c_master_handle i2c_master_handle_t; + +/*! @brief I2C master transfer callback typedef. */ +typedef void (*i2c_master_transfer_callback_t)(I2C_Type *base, + i2c_master_handle_t *handle, + status_t status, + void *userData); + +/*! @brief I2C slave handle typedef. */ +typedef struct _i2c_slave_handle i2c_slave_handle_t; + +/*! @brief I2C master transfer structure. */ +typedef struct _i2c_master_transfer +{ + uint32_t flags; /*!< Transfer flag which controls the transfer. */ + uint8_t slaveAddress; /*!< 7-bit slave address. */ + i2c_direction_t direction; /*!< Transfer direction, read or write. */ + uint32_t subaddress; /*!< Sub address. Transferred MSB first. */ + uint8_t subaddressSize; /*!< Size of command buffer. */ + uint8_t *volatile data; /*!< Transfer buffer. */ + volatile size_t dataSize; /*!< Transfer size. */ +} i2c_master_transfer_t; + +/*! @brief I2C master handle structure. */ +struct _i2c_master_handle +{ + i2c_master_transfer_t transfer; /*!< I2C master transfer copy. */ + size_t transferSize; /*!< Total bytes to be transferred. */ + uint8_t state; /*!< Transfer state maintained during transfer. */ + i2c_master_transfer_callback_t completionCallback; /*!< Callback function called when transfer finished. */ + void *userData; /*!< Callback parameter passed to callback function. */ +}; + +/*! @brief I2C slave transfer structure. */ +typedef struct _i2c_slave_transfer +{ + i2c_slave_transfer_event_t event; /*!< Reason the callback is being invoked. */ + uint8_t *volatile data; /*!< Transfer buffer. */ + volatile size_t dataSize; /*!< Transfer size. */ + status_t completionStatus; /*!< Success or error code describing how the transfer completed. Only applies for + #kI2C_SlaveCompletionEvent. */ + size_t transferredCount; /*!< Number of bytes actually transferred since start or last repeated start. */ +} i2c_slave_transfer_t; + +/*! @brief I2C slave transfer callback typedef. */ +typedef void (*i2c_slave_transfer_callback_t)(I2C_Type *base, i2c_slave_transfer_t *xfer, void *userData); + +/*! @brief I2C slave handle structure. */ +struct _i2c_slave_handle +{ + bool isBusy; /*!< Whether transfer is busy. */ + i2c_slave_transfer_t transfer; /*!< I2C slave transfer copy. */ + uint32_t eventMask; /*!< Mask of enabled events. */ + i2c_slave_transfer_callback_t callback; /*!< Callback function called at transfer event. */ + void *userData; /*!< Callback parameter passed to callback. */ +}; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /*_cplusplus. */ + +/*! + * @name Initialization and deinitialization + * @{ + */ + +/*! + * @brief Initializes the I2C peripheral. Call this API to ungate the I2C clock + * and configure the I2C with master configuration. + * + * @note This API should be called at the beginning of the application to use + * the I2C driver, or any operation to the I2C module may cause a hard fault + * because clock is not enabled. The configuration structure can be filled by user + * from scratch, or be set with default values by I2C_MasterGetDefaultConfig(). + * After calling this API, the master is ready to transfer. + * Example: + * @code + * i2c_master_config_t config = { + * .enableMaster = true, + * .enableStopHold = false, + * .highDrive = false, + * .baudRate_Bps = 100000, + * .glitchFilterWidth = 0 + * }; + * I2C_MasterInit(I2C0, &config, 12000000U); + * @endcode + * + * @param base I2C base pointer + * @param masterConfig pointer to master configuration structure + * @param srcClock_Hz I2C peripheral clock frequency in Hz + */ +void I2C_MasterInit(I2C_Type *base, const i2c_master_config_t *masterConfig, uint32_t srcClock_Hz); + +/*! + * @brief Initializes the I2C peripheral. Call this API to ungate the I2C clock + * and initializes the I2C with slave configuration. + * + * @note This API should be called at the beginning of the application to use + * the I2C driver, or any operation to the I2C module can cause a hard fault + * because the clock is not enabled. The configuration structure can partly be set + * with default values by I2C_SlaveGetDefaultConfig(), or can be filled by the user. + * Example + * @code + * i2c_slave_config_t config = { + * .enableSlave = true, + * .enableGeneralCall = false, + * .addressingMode = kI2C_Address7bit, + * .slaveAddress = 0x1DU, + * .enableWakeUp = false, + * .enablehighDrive = false, + * .enableBaudRateCtl = false + * }; + * I2C_SlaveInit(I2C0, &config); + * @endcode + * + * @param base I2C base pointer + * @param slaveConfig pointer to slave configuration structure + */ +void I2C_SlaveInit(I2C_Type *base, const i2c_slave_config_t *slaveConfig); + +/*! + * @brief De-initializes the I2C master peripheral. Call this API to gate the I2C clock. + * The I2C master module can't work unless the I2C_MasterInit is called. + * @param base I2C base pointer + */ +void I2C_MasterDeinit(I2C_Type *base); + +/*! + * @brief De-initializes the I2C slave peripheral. Calling this API gates the I2C clock. + * The I2C slave module can't work unless the I2C_SlaveInit is called to enable the clock. + * @param base I2C base pointer + */ +void I2C_SlaveDeinit(I2C_Type *base); + +/*! + * @brief Sets the I2C master configuration structure to default values. + * + * The purpose of this API is to get the configuration structure initialized for use in the I2C_MasterConfigure(). + * Use the initialized structure unchanged in I2C_MasterConfigure(), or modify some fields of + * the structure before calling I2C_MasterConfigure(). + * Example: + * @code + * i2c_master_config_t config; + * I2C_MasterGetDefaultConfig(&config); + * @endcode + * @param masterConfig Pointer to the master configuration structure. +*/ +void I2C_MasterGetDefaultConfig(i2c_master_config_t *masterConfig); + +/*! + * @brief Sets the I2C slave configuration structure to default values. + * + * The purpose of this API is to get the configuration structure initialized for use in I2C_SlaveConfigure(). + * Modify fields of the structure before calling the I2C_SlaveConfigure(). + * Example: + * @code + * i2c_slave_config_t config; + * I2C_SlaveGetDefaultConfig(&config); + * @endcode + * @param slaveConfig Pointer to the slave configuration structure. + */ +void I2C_SlaveGetDefaultConfig(i2c_slave_config_t *slaveConfig); + +/*! + * @brief Enables or disabless the I2C peripheral operation. + * + * @param base I2C base pointer + * @param enable pass true to enable module, false to disable module + */ +static inline void I2C_Enable(I2C_Type *base, bool enable) +{ + if (enable) + { + base->C1 |= I2C_C1_IICEN_MASK; + } + else + { + base->C1 &= ~I2C_C1_IICEN_MASK; + } +} + +/* @} */ + +/*! + * @name Status + * @{ + */ + +/*! + * @brief Gets the I2C status flags. + * + * @param base I2C base pointer + * @return status flag, use status flag to AND #_i2c_flags to get the related status. + */ +uint32_t I2C_MasterGetStatusFlags(I2C_Type *base); + +/*! + * @brief Gets the I2C status flags. + * + * @param base I2C base pointer + * @return status flag, use status flag to AND #_i2c_flags to get the related status. + */ +static inline uint32_t I2C_SlaveGetStatusFlags(I2C_Type *base) +{ + return I2C_MasterGetStatusFlags(base); +} + +/*! + * @brief Clears the I2C status flag state. + * + * The following status register flags can be cleared: kI2C_ArbitrationLostFlag and kI2C_IntPendingFlag + * + * @param base I2C base pointer + * @param statusMask The status flag mask, defined in type i2c_status_flag_t. + * The parameter can be any combination of the following values: + * @arg kI2C_StartDetectFlag (if available) + * @arg kI2C_StopDetectFlag (if available) + * @arg kI2C_ArbitrationLostFlag + * @arg kI2C_IntPendingFlagFlag + */ +static inline void I2C_MasterClearStatusFlags(I2C_Type *base, uint32_t statusMask) +{ +/* Must clear the STARTF / STOPF bits prior to clearing IICIF */ +#if defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT + if (statusMask & kI2C_StartDetectFlag) + { + /* Shift the odd-ball flags back into place. */ + base->FLT |= (uint8_t)(statusMask >> 8U); + } +#endif + +#ifdef I2C_HAS_STOP_DETECT + if (statusMask & kI2C_StopDetectFlag) + { + /* Shift the odd-ball flags back into place. */ + base->FLT |= (uint8_t)(statusMask >> 8U); + } +#endif + + base->S = (uint8_t)statusMask; +} + +/*! + * @brief Clears the I2C status flag state. + * + * The following status register flags can be cleared: kI2C_ArbitrationLostFlag and kI2C_IntPendingFlag + * + * @param base I2C base pointer + * @param statusMask The status flag mask, defined in type i2c_status_flag_t. + * The parameter can be any combination of the following values: + * @arg kI2C_StartDetectFlag (if available) + * @arg kI2C_StopDetectFlag (if available) + * @arg kI2C_ArbitrationLostFlag + * @arg kI2C_IntPendingFlagFlag + */ +static inline void I2C_SlaveClearStatusFlags(I2C_Type *base, uint32_t statusMask) +{ + I2C_MasterClearStatusFlags(base, statusMask); +} + +/* @} */ + +/*! + * @name Interrupts + * @{ + */ + +/*! + * @brief Enables I2C interrupt requests. + * + * @param base I2C base pointer + * @param mask interrupt source + * The parameter can be combination of the following source if defined: + * @arg kI2C_GlobalInterruptEnable + * @arg kI2C_StopDetectInterruptEnable/kI2C_StartDetectInterruptEnable + * @arg kI2C_SdaTimeoutInterruptEnable + */ +void I2C_EnableInterrupts(I2C_Type *base, uint32_t mask); + +/*! + * @brief Disables I2C interrupt requests. + * + * @param base I2C base pointer + * @param mask interrupt source + * The parameter can be combination of the following source if defined: + * @arg kI2C_GlobalInterruptEnable + * @arg kI2C_StopDetectInterruptEnable/kI2C_StartDetectInterruptEnable + * @arg kI2C_SdaTimeoutInterruptEnable + */ +void I2C_DisableInterrupts(I2C_Type *base, uint32_t mask); + +/*! + * @name DMA Control + * @{ + */ +#if defined(FSL_FEATURE_I2C_HAS_DMA_SUPPORT) && FSL_FEATURE_I2C_HAS_DMA_SUPPORT +/*! + * @brief Enables/disables the I2C DMA interrupt. + * + * @param base I2C base pointer + * @param enable true to enable, false to disable +*/ +static inline void I2C_EnableDMA(I2C_Type *base, bool enable) +{ + if (enable) + { + base->C1 |= I2C_C1_DMAEN_MASK; + } + else + { + base->C1 &= ~I2C_C1_DMAEN_MASK; + } +} + +#endif /* FSL_FEATURE_I2C_HAS_DMA_SUPPORT */ + +/*! + * @brief Gets the I2C tx/rx data register address. This API is used to provide a transfer address + * for I2C DMA transfer configuration. + * + * @param base I2C base pointer + * @return data register address + */ +static inline uint32_t I2C_GetDataRegAddr(I2C_Type *base) +{ + return (uint32_t)(&(base->D)); +} + +/* @} */ +/*! + * @name Bus Operations + * @{ + */ + +/*! + * @brief Sets the I2C master transfer baud rate. + * + * @param base I2C base pointer + * @param baudRate_Bps the baud rate value in bps + * @param srcClock_Hz Source clock + */ +void I2C_MasterSetBaudRate(I2C_Type *base, uint32_t baudRate_Bps, uint32_t srcClock_Hz); + +/*! + * @brief Sends a START on the I2C bus. + * + * This function is used to initiate a new master mode transfer by sending the START signal. + * The slave address is sent following the I2C START signal. + * + * @param base I2C peripheral base pointer + * @param address 7-bit slave device address. + * @param direction Master transfer directions(transmit/receive). + * @retval kStatus_Success Successfully send the start signal. + * @retval kStatus_I2C_Busy Current bus is busy. + */ +status_t I2C_MasterStart(I2C_Type *base, uint8_t address, i2c_direction_t direction); + +/*! + * @brief Sends a STOP signal on the I2C bus. + * + * @retval kStatus_Success Successfully send the stop signal. + * @retval kStatus_I2C_Timeout Send stop signal failed, timeout. + */ +status_t I2C_MasterStop(I2C_Type *base); + +/*! + * @brief Sends a REPEATED START on the I2C bus. + * + * @param base I2C peripheral base pointer + * @param address 7-bit slave device address. + * @param direction Master transfer directions(transmit/receive). + * @retval kStatus_Success Successfully send the start signal. + * @retval kStatus_I2C_Busy Current bus is busy but not occupied by current I2C master. + */ +status_t I2C_MasterRepeatedStart(I2C_Type *base, uint8_t address, i2c_direction_t direction); + +/*! + * @brief Performs a polling send transaction on the I2C bus without a STOP signal. + * + * @param base The I2C peripheral base pointer. + * @param txBuff The pointer to the data to be transferred. + * @param txSize The length in bytes of the data to be transferred. + * @retval kStatus_Success Successfully complete the data transmission. + * @retval kStatus_I2C_ArbitrationLost Transfer error, arbitration lost. + * @retval kStataus_I2C_Nak Transfer error, receive NAK during transfer. + */ +status_t I2C_MasterWriteBlocking(I2C_Type *base, const uint8_t *txBuff, size_t txSize); + +/*! + * @brief Performs a polling receive transaction on the I2C bus with a STOP signal. + * + * @note The I2C_MasterReadBlocking function stops the bus before reading the final byte. + * Without stopping the bus prior for the final read, the bus issues another read, resulting + * in garbage data being read into the data register. + * + * @param base I2C peripheral base pointer. + * @param rxBuff The pointer to the data to store the received data. + * @param rxSize The length in bytes of the data to be received. + * @retval kStatus_Success Successfully complete the data transmission. + * @retval kStatus_I2C_Timeout Send stop signal failed, timeout. + */ +status_t I2C_MasterReadBlocking(I2C_Type *base, uint8_t *rxBuff, size_t rxSize); + +/*! + * @brief Performs a polling send transaction on the I2C bus. + * + * @param base The I2C peripheral base pointer. + * @param txBuff The pointer to the data to be transferred. + * @param txSize The length in bytes of the data to be transferred. + * @retval kStatus_Success Successfully complete the data transmission. + * @retval kStatus_I2C_ArbitrationLost Transfer error, arbitration lost. + * @retval kStataus_I2C_Nak Transfer error, receive NAK during transfer. + */ +status_t I2C_SlaveWriteBlocking(I2C_Type *base, const uint8_t *txBuff, size_t txSize); + +/*! + * @brief Performs a polling receive transaction on the I2C bus. + * + * @param base I2C peripheral base pointer. + * @param rxBuff The pointer to the data to store the received data. + * @param rxSize The length in bytes of the data to be received. + */ +void I2C_SlaveReadBlocking(I2C_Type *base, uint8_t *rxBuff, size_t rxSize); + +/*! + * @brief Performs a master polling transfer on the I2C bus. + * + * @note The API does not return until the transfer succeeds or fails due + * to arbitration lost or receiving a NAK. + * + * @param base I2C peripheral base address. + * @param xfer Pointer to the transfer structure. + * @retval kStatus_Success Successfully complete the data transmission. + * @retval kStatus_I2C_Busy Previous transmission still not finished. + * @retval kStatus_I2C_Timeout Transfer error, wait signal timeout. + * @retval kStatus_I2C_ArbitrationLost Transfer error, arbitration lost. + * @retval kStataus_I2C_Nak Transfer error, receive NAK during transfer. + */ +status_t I2C_MasterTransferBlocking(I2C_Type *base, i2c_master_transfer_t *xfer); + +/* @} */ + +/*! + * @name Transactional + * @{ + */ + +/*! + * @brief Initializes the I2C handle which is used in transactional functions. + * + * @param base I2C base pointer. + * @param handle pointer to i2c_master_handle_t structure to store the transfer state. + * @param callback pointer to user callback function. + * @param userData user parameter passed to the callback function. + */ +void I2C_MasterTransferCreateHandle(I2C_Type *base, + i2c_master_handle_t *handle, + i2c_master_transfer_callback_t callback, + void *userData); + +/*! + * @brief Performs a master interrupt non-blocking transfer on the I2C bus. + * + * @note Calling the API returns immediately after transfer initiates. The user needs + * to call I2C_MasterGetTransferCount to poll the transfer status to check whether + * the transfer is finished. If the return status is not kStatus_I2C_Busy, the transfer + * is finished. + * + * @param base I2C base pointer. + * @param handle pointer to i2c_master_handle_t structure which stores the transfer state. + * @param xfer pointer to i2c_master_transfer_t structure. + * @retval kStatus_Success Successfully start the data transmission. + * @retval kStatus_I2C_Busy Previous transmission still not finished. + * @retval kStatus_I2C_Timeout Transfer error, wait signal timeout. + */ +status_t I2C_MasterTransferNonBlocking(I2C_Type *base, i2c_master_handle_t *handle, i2c_master_transfer_t *xfer); + +/*! + * @brief Gets the master transfer status during a interrupt non-blocking transfer. + * + * @param base I2C base pointer. + * @param handle pointer to i2c_master_handle_t structure which stores the transfer state. + * @param count Number of bytes transferred so far by the non-blocking transaction. + * @retval kStatus_InvalidArgument count is Invalid. + * @retval kStatus_Success Successfully return the count. + */ +status_t I2C_MasterTransferGetCount(I2C_Type *base, i2c_master_handle_t *handle, size_t *count); + +/*! + * @brief Aborts an interrupt non-blocking transfer early. + * + * @note This API can be called at any time when an interrupt non-blocking transfer initiates + * to abort the transfer early. + * + * @param base I2C base pointer. + * @param handle pointer to i2c_master_handle_t structure which stores the transfer state + */ +void I2C_MasterTransferAbort(I2C_Type *base, i2c_master_handle_t *handle); + +/*! + * @brief Master interrupt handler. + * + * @param base I2C base pointer. + * @param i2cHandle pointer to i2c_master_handle_t structure. + */ +void I2C_MasterTransferHandleIRQ(I2C_Type *base, void *i2cHandle); + +/*! + * @brief Initializes the I2C handle which is used in transactional functions. + * + * @param base I2C base pointer. + * @param handle pointer to i2c_slave_handle_t structure to store the transfer state. + * @param callback pointer to user callback function. + * @param userData user parameter passed to the callback function. + */ +void I2C_SlaveTransferCreateHandle(I2C_Type *base, + i2c_slave_handle_t *handle, + i2c_slave_transfer_callback_t callback, + void *userData); + +/*! + * @brief Starts accepting slave transfers. + * + * Call this API after calling the I2C_SlaveInit() and I2C_SlaveTransferCreateHandle() to start processing + * transactions driven by an I2C master. The slave monitors the I2C bus and passes events to the + * callback that was passed into the call to I2C_SlaveTransferCreateHandle(). The callback is always invoked + * from the interrupt context. + * + * The set of events received by the callback is customizable. To do so, set the @a eventMask parameter to + * the OR'd combination of #i2c_slave_transfer_event_t enumerators for the events you wish to receive. + * The #kI2C_SlaveTransmitEvent and #kLPI2C_SlaveReceiveEvent events are always enabled and do not need + * to be included in the mask. Alternatively, pass 0 to get a default set of only the transmit and + * receive events that are always enabled. In addition, the #kI2C_SlaveAllEvents constant is provided as + * a convenient way to enable all events. + * + * @param base The I2C peripheral base address. + * @param handle Pointer to #i2c_slave_handle_t structure which stores the transfer state. + * @param eventMask Bit mask formed by OR'ing together #i2c_slave_transfer_event_t enumerators to specify + * which events to send to the callback. Other accepted values are 0 to get a default set of + * only the transmit and receive events, and #kI2C_SlaveAllEvents to enable all events. + * + * @retval #kStatus_Success Slave transfers were successfully started. + * @retval #kStatus_I2C_Busy Slave transfers have already been started on this handle. + */ +status_t I2C_SlaveTransferNonBlocking(I2C_Type *base, i2c_slave_handle_t *handle, uint32_t eventMask); + +/*! + * @brief Aborts the slave transfer. + * + * @note This API can be called at any time to stop slave for handling the bus events. + * + * @param base I2C base pointer. + * @param handle pointer to i2c_slave_handle_t structure which stores the transfer state. + */ +void I2C_SlaveTransferAbort(I2C_Type *base, i2c_slave_handle_t *handle); + +/*! + * @brief Gets the slave transfer remaining bytes during a interrupt non-blocking transfer. + * + * @param base I2C base pointer. + * @param handle pointer to i2c_slave_handle_t structure. + * @param count Number of bytes transferred so far by the non-blocking transaction. + * @retval kStatus_InvalidArgument count is Invalid. + * @retval kStatus_Success Successfully return the count. + */ +status_t I2C_SlaveTransferGetCount(I2C_Type *base, i2c_slave_handle_t *handle, size_t *count); + +/*! + * @brief Slave interrupt handler. + * + * @param base I2C base pointer. + * @param i2cHandle pointer to i2c_slave_handle_t structure which stores the transfer state + */ +void I2C_SlaveTransferHandleIRQ(I2C_Type *base, void *i2cHandle); + +/* @} */ +#if defined(__cplusplus) +} +#endif /*_cplusplus. */ +/*@}*/ + +#endif /* _FSL_I2C_H_*/ diff --git a/drivers/fsl_i2c_edma.c b/drivers/fsl_i2c_edma.c new file mode 100644 index 0000000..c8f7c20 --- /dev/null +++ b/drivers/fsl_i2c_edma.c @@ -0,0 +1,526 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_i2c_edma.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*<! @breif Structure definition for i2c_master_edma_private_handle_t. The structure is private. */ +typedef struct _i2c_master_edma_private_handle +{ + I2C_Type *base; + i2c_master_edma_handle_t *handle; +} i2c_master_edma_private_handle_t; + +/*! @brief i2c master DMA transfer state. */ +enum _i2c_master_dma_transfer_states +{ + kIdleState = 0x0U, /*!< I2C bus idle. */ + kTransferDataState = 0x1U, /*!< 7-bit address check state. */ +}; + +/*! @brief Common sets of flags used by the driver. */ +enum _i2c_flag_constants +{ +/*! All flags which are cleared by the driver upon starting a transfer. */ +#if defined(FSL_FEATURE_I2C_HAS_START_STOP_DETECT) && FSL_FEATURE_I2C_HAS_START_STOP_DETECT + kClearFlags = kI2C_ArbitrationLostFlag | kI2C_IntPendingFlag | kI2C_StartDetectFlag | kI2C_StopDetectFlag, +#elif defined(FSL_FEATURE_I2C_HAS_STOP_DETECT) && FSL_FEATURE_I2C_HAS_STOP_DETECT + kClearFlags = kI2C_ArbitrationLostFlag | kI2C_IntPendingFlag | kI2C_StopDetectFlag, +#else + kClearFlags = kI2C_ArbitrationLostFlag | kI2C_IntPendingFlag, +#endif +}; + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/*! + * @brief EDMA callback for I2C master EDMA driver. + * + * @param handle EDMA handler for I2C master EDMA driver + * @param userData user param passed to the callback function + */ +static void I2C_MasterTransferCallbackEDMA(edma_handle_t *handle, void *userData, bool transferDone, uint32_t tcds); + +/*! + * @brief Check and clear status operation. + * + * @param base I2C peripheral base address. + * @param status current i2c hardware status. + * @retval kStatus_Success No error found. + * @retval kStatus_I2C_ArbitrationLost Transfer error, arbitration lost. + * @retval kStatus_I2C_Nak Received Nak error. + */ +static status_t I2C_CheckAndClearError(I2C_Type *base, uint32_t status); + +/*! + * @brief EDMA config for I2C master driver. + * + * @param base I2C peripheral base address. + * @param handle pointer to i2c_master_edma_handle_t structure which stores the transfer state + */ +static void I2C_MasterTransferEDMAConfig(I2C_Type *base, i2c_master_edma_handle_t *handle); + +/*! + * @brief Set up master transfer, send slave address and sub address(if any), wait until the + * wait until address sent status return. + * + * @param base I2C peripheral base address. + * @param handle pointer to i2c_master_edma_handle_t structure which stores the transfer state + * @param xfer pointer to i2c_master_transfer_t structure + */ +static status_t I2C_InitTransferStateMachineEDMA(I2C_Type *base, + i2c_master_edma_handle_t *handle, + i2c_master_transfer_t *xfer); + +/*! + * @brief Get the I2C instance from peripheral base address. + * + * @param base I2C peripheral base address. + * @return I2C instance. + */ +extern uint32_t I2C_GetInstance(I2C_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ + +/*<! Private handle only used for internally. */ +static i2c_master_edma_private_handle_t s_edmaPrivateHandle[FSL_FEATURE_SOC_I2C_COUNT]; + +/******************************************************************************* + * Codes + ******************************************************************************/ + +static void I2C_MasterTransferCallbackEDMA(edma_handle_t *handle, void *userData, bool transferDone, uint32_t tcds) +{ + i2c_master_edma_private_handle_t *i2cPrivateHandle = (i2c_master_edma_private_handle_t *)userData; + status_t result = kStatus_Success; + + /* Disable DMA. */ + I2C_EnableDMA(i2cPrivateHandle->base, false); + + /* Send stop if kI2C_TransferNoStop flag is not asserted. */ + if (!(i2cPrivateHandle->handle->transfer.flags & kI2C_TransferNoStopFlag)) + { + if (i2cPrivateHandle->handle->transfer.direction == kI2C_Read) + { + /* Change to send NAK at the last byte. */ + i2cPrivateHandle->base->C1 |= I2C_C1_TXAK_MASK; + + /* Wait the last data to be received. */ + while (!(i2cPrivateHandle->base->S & kI2C_TransferCompleteFlag)) + { + } + + /* Send stop signal. */ + result = I2C_MasterStop(i2cPrivateHandle->base); + + /* Read the last data byte. */ + *(i2cPrivateHandle->handle->transfer.data + i2cPrivateHandle->handle->transfer.dataSize - 1) = + i2cPrivateHandle->base->D; + } + else + { + /* Wait the last data to be sent. */ + while (!(i2cPrivateHandle->base->S & kI2C_TransferCompleteFlag)) + { + } + + /* Send stop signal. */ + result = I2C_MasterStop(i2cPrivateHandle->base); + } + } + + i2cPrivateHandle->handle->state = kIdleState; + + if (i2cPrivateHandle->handle->completionCallback) + { + i2cPrivateHandle->handle->completionCallback(i2cPrivateHandle->base, i2cPrivateHandle->handle, result, + i2cPrivateHandle->handle->userData); + } +} + +static status_t I2C_CheckAndClearError(I2C_Type *base, uint32_t status) +{ + status_t result = kStatus_Success; + + /* Check arbitration lost. */ + if (status & kI2C_ArbitrationLostFlag) + { + /* Clear arbitration lost flag. */ + base->S = kI2C_ArbitrationLostFlag; + result = kStatus_I2C_ArbitrationLost; + } + /* Check NAK */ + else if (status & kI2C_ReceiveNakFlag) + { + result = kStatus_I2C_Nak; + } + else + { + } + + return result; +} + +static status_t I2C_InitTransferStateMachineEDMA(I2C_Type *base, + i2c_master_edma_handle_t *handle, + i2c_master_transfer_t *xfer) +{ + assert(handle); + assert(xfer); + + status_t result = kStatus_Success; + uint16_t timeout = UINT16_MAX; + + if (handle->state != kIdleState) + { + return kStatus_I2C_Busy; + } + else + { + i2c_direction_t direction = xfer->direction; + + /* Init the handle member. */ + handle->transfer = *xfer; + + /* Save total transfer size. */ + handle->transferSize = xfer->dataSize; + + handle->state = kTransferDataState; + + /* Wait until ready to complete. */ + while ((!(base->S & kI2C_TransferCompleteFlag)) && (--timeout)) + { + } + + /* Failed to start the transfer. */ + if (timeout == 0) + { + return kStatus_I2C_Timeout; + } + /* Clear all status before transfer. */ + I2C_MasterClearStatusFlags(base, kClearFlags); + + /* Change to send write address when it's a read operation with command. */ + if ((xfer->subaddressSize > 0) && (xfer->direction == kI2C_Read)) + { + direction = kI2C_Write; + } + + /* If repeated start is requested, send repeated start. */ + if (handle->transfer.flags & kI2C_TransferRepeatedStartFlag) + { + result = I2C_MasterRepeatedStart(base, handle->transfer.slaveAddress, direction); + } + else /* For normal transfer, send start. */ + { + result = I2C_MasterStart(base, handle->transfer.slaveAddress, direction); + } + + /* Send subaddress. */ + if (handle->transfer.subaddressSize) + { + do + { + /* Wait until data transfer complete. */ + while (!(base->S & kI2C_IntPendingFlag)) + { + } + + /* Clear interrupt pending flag. */ + base->S = kI2C_IntPendingFlag; + + handle->transfer.subaddressSize--; + base->D = ((handle->transfer.subaddress) >> (8 * handle->transfer.subaddressSize)); + + /* Check if there's transfer error. */ + result = I2C_CheckAndClearError(base, base->S); + + if (result) + { + return result; + } + + } while ((handle->transfer.subaddressSize > 0) && (result == kStatus_Success)); + + if (handle->transfer.direction == kI2C_Read) + { + /* Wait until data transfer complete. */ + while (!(base->S & kI2C_IntPendingFlag)) + { + } + + /* Clear pending flag. */ + base->S = kI2C_IntPendingFlag; + + /* Send repeated start and slave address. */ + result = I2C_MasterRepeatedStart(base, handle->transfer.slaveAddress, kI2C_Read); + } + } + + if (result) + { + return result; + } + + /* Wait until data transfer complete. */ + while (!(base->S & kI2C_IntPendingFlag)) + { + } + + /* Clear pending flag. */ + base->S = kI2C_IntPendingFlag; + + /* Check if there's transfer error. */ + result = I2C_CheckAndClearError(base, base->S); + } + + return result; +} + +static void I2C_MasterTransferEDMAConfig(I2C_Type *base, i2c_master_edma_handle_t *handle) +{ + edma_transfer_config_t transfer_config; + + if (handle->transfer.direction == kI2C_Read) + { + transfer_config.srcAddr = (uint32_t)I2C_GetDataRegAddr(base); + transfer_config.destAddr = (uint32_t)(handle->transfer.data); + + /* Send stop if kI2C_TransferNoStop flag is not asserted. */ + if (!(handle->transfer.flags & kI2C_TransferNoStopFlag)) + { + transfer_config.majorLoopCounts = (handle->transfer.dataSize - 1); + } + else + { + transfer_config.majorLoopCounts = handle->transfer.dataSize; + } + + transfer_config.srcTransferSize = kEDMA_TransferSize1Bytes; + transfer_config.srcOffset = 0; + transfer_config.destTransferSize = kEDMA_TransferSize1Bytes; + transfer_config.destOffset = 1; + transfer_config.minorLoopBytes = 1; + } + else + { + transfer_config.srcAddr = (uint32_t)(handle->transfer.data + 1); + transfer_config.destAddr = (uint32_t)I2C_GetDataRegAddr(base); + transfer_config.majorLoopCounts = (handle->transfer.dataSize - 1); + transfer_config.srcTransferSize = kEDMA_TransferSize1Bytes; + transfer_config.srcOffset = 1; + transfer_config.destTransferSize = kEDMA_TransferSize1Bytes; + transfer_config.destOffset = 0; + transfer_config.minorLoopBytes = 1; + } + + EDMA_SubmitTransfer(handle->dmaHandle, &transfer_config); + EDMA_StartTransfer(handle->dmaHandle); +} + +void I2C_MasterCreateEDMAHandle(I2C_Type *base, + i2c_master_edma_handle_t *handle, + i2c_master_edma_transfer_callback_t callback, + void *userData, + edma_handle_t *edmaHandle) +{ + assert(handle); + assert(edmaHandle); + + uint32_t instance = I2C_GetInstance(base); + + /* Zero handle. */ + memset(handle, 0, sizeof(*handle)); + + /* Set the user callback and userData. */ + handle->completionCallback = callback; + handle->userData = userData; + + /* Set the base for the handle. */ + base = base; + + /* Set the handle for EDMA. */ + handle->dmaHandle = edmaHandle; + + s_edmaPrivateHandle[instance].base = base; + s_edmaPrivateHandle[instance].handle = handle; + + EDMA_SetCallback(edmaHandle, (edma_callback)I2C_MasterTransferCallbackEDMA, &s_edmaPrivateHandle[instance]); +} + +status_t I2C_MasterTransferEDMA(I2C_Type *base, i2c_master_edma_handle_t *handle, i2c_master_transfer_t *xfer) +{ + assert(handle); + assert(xfer); + + status_t result; + uint8_t tmpReg; + volatile uint8_t dummy = 0; + + /* Add this to avoid build warning. */ + dummy++; + + /* Disable dma xfer. */ + I2C_EnableDMA(base, false); + + /* Send address and command buffer(if there is), until senddata phase or receive data phase. */ + result = I2C_InitTransferStateMachineEDMA(base, handle, xfer); + + if (result) + { + /* Send stop if received Nak. */ + if (result == kStatus_I2C_Nak) + { + if (I2C_MasterStop(base) != kStatus_Success) + { + result = kStatus_I2C_Timeout; + } + } + + /* Reset the state to idle state. */ + handle->state = kIdleState; + + return result; + } + + /* Configure dma transfer. */ + /* For i2c send, need to send 1 byte first to trigger the dma, for i2c read, + need to send stop before reading the last byte, so the dma transfer size should + be (xSize - 1). */ + if (handle->transfer.dataSize > 1) + { + I2C_MasterTransferEDMAConfig(base, handle); + if (handle->transfer.direction == kI2C_Read) + { + /* Change direction for receive. */ + base->C1 &= ~I2C_C1_TX_MASK; + + /* Read dummy to release the bus. */ + dummy = base->D; + + /* Enabe dma transfer. */ + I2C_EnableDMA(base, true); + } + else + { + /* Enabe dma transfer. */ + I2C_EnableDMA(base, true); + + /* Send the first data. */ + base->D = *handle->transfer.data; + } + } + else /* If transfer size is 1, use polling method. */ + { + if (handle->transfer.direction == kI2C_Read) + { + tmpReg = base->C1; + + /* Change direction to Rx. */ + tmpReg &= ~I2C_C1_TX_MASK; + + /* Configure send NAK */ + tmpReg |= I2C_C1_TXAK_MASK; + + base->C1 = tmpReg; + + /* Read dummy to release the bus. */ + dummy = base->D; + } + else + { + base->D = *handle->transfer.data; + } + + /* Wait until data transfer complete. */ + while (!(base->S & kI2C_IntPendingFlag)) + { + } + + /* Clear pending flag. */ + base->S = kI2C_IntPendingFlag; + + /* Send stop if kI2C_TransferNoStop flag is not asserted. */ + if (!(handle->transfer.flags & kI2C_TransferNoStopFlag)) + { + result = I2C_MasterStop(base); + } + + /* Read the last byte of data. */ + if (handle->transfer.direction == kI2C_Read) + { + *handle->transfer.data = base->D; + } + + /* Reset the state to idle. */ + handle->state = kIdleState; + } + + return result; +} + +status_t I2C_MasterTransferGetCountEDMA(I2C_Type *base, i2c_master_edma_handle_t *handle, size_t *count) +{ + assert(handle->dmaHandle); + + if (!count) + { + return kStatus_InvalidArgument; + } + + if (kIdleState != handle->state) + { + *count = (handle->transferSize - EDMA_GetRemainingBytes(handle->dmaHandle->base, handle->dmaHandle->channel)); + } + else + { + *count = handle->transferSize; + } + + return kStatus_Success; +} + +void I2C_MasterTransferAbortEDMA(I2C_Type *base, i2c_master_edma_handle_t *handle) +{ + EDMA_AbortTransfer(handle->dmaHandle); + + /* Disable dma transfer. */ + I2C_EnableDMA(base, false); + + /* Reset the state to idle. */ + handle->state = kIdleState; +} diff --git a/drivers/fsl_i2c_edma.h b/drivers/fsl_i2c_edma.h new file mode 100644 index 0000000..c95d6ad --- /dev/null +++ b/drivers/fsl_i2c_edma.h @@ -0,0 +1,132 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_I2C_DMA_H_ +#define _FSL_I2C_DMA_H_ + +#include "fsl_i2c.h" +#include "fsl_dmamux.h" +#include "fsl_edma.h" + +/*! + * @addtogroup i2c_edma_driver + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @brief I2C master eDMA handle typedef. */ +typedef struct _i2c_master_edma_handle i2c_master_edma_handle_t; + +/*! @brief I2C master eDMA transfer callback typedef. */ +typedef void (*i2c_master_edma_transfer_callback_t)(I2C_Type *base, + i2c_master_edma_handle_t *handle, + status_t status, + void *userData); + +/*! @brief I2C master eDMA transfer structure. */ +struct _i2c_master_edma_handle +{ + i2c_master_transfer_t transfer; /*!< I2C master transfer struct. */ + size_t transferSize; /*!< Total bytes to be transferred. */ + uint8_t state; /*!< I2C master transfer status. */ + edma_handle_t *dmaHandle; /*!< The eDMA handler used. */ + i2c_master_edma_transfer_callback_t + completionCallback; /*!< Callback function called after eDMA transfer finished. */ + void *userData; /*!< Callback parameter passed to callback function. */ +}; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /*_cplusplus. */ + +/*! + * @name I2C Block eDMA Transfer Operation + * @{ + */ + +/*! + * @brief Init the I2C handle which is used in transcational functions. + * + * @param base I2C peripheral base address. + * @param handle pointer to i2c_master_edma_handle_t structure. + * @param callback pointer to user callback function. + * @param userData user param passed to the callback function. + * @param edmaHandle eDMA handle pointer. + */ +void I2C_MasterCreateEDMAHandle(I2C_Type *base, + i2c_master_edma_handle_t *handle, + i2c_master_edma_transfer_callback_t callback, + void *userData, + edma_handle_t *edmaHandle); + +/*! + * @brief Performs a master eDMA non-blocking transfer on the I2C bus. + * + * @param base I2C peripheral base address. + * @param handle pointer to i2c_master_edma_handle_t structure. + * @param xfer pointer to transfer structure of i2c_master_transfer_t. + * @retval kStatus_Success Sucessully complete the data transmission. + * @retval kStatus_I2C_Busy Previous transmission still not finished. + * @retval kStatus_I2C_Timeout Transfer error, wait signal timeout. + * @retval kStatus_I2C_ArbitrationLost Transfer error, arbitration lost. + * @retval kStataus_I2C_Nak Transfer error, receive Nak during transfer. + */ +status_t I2C_MasterTransferEDMA(I2C_Type *base, i2c_master_edma_handle_t *handle, i2c_master_transfer_t *xfer); + +/*! + * @brief Get master transfer status during a eDMA non-blocking transfer. + * + * @param base I2C peripheral base address. + * @param handle pointer to i2c_master_edma_handle_t structure. + * @param count Number of bytes transferred so far by the non-blocking transaction. + */ +status_t I2C_MasterTransferGetCountEDMA(I2C_Type *base, i2c_master_edma_handle_t *handle, size_t *count); + +/*! + * @brief Abort a master eDMA non-blocking transfer in a early time. + * + * @param base I2C peripheral base address. + * @param handle pointer to i2c_master_edma_handle_t structure. + */ +void I2C_MasterTransferAbortEDMA(I2C_Type *base, i2c_master_edma_handle_t *handle); + +/* @} */ +#if defined(__cplusplus) +} +#endif /*_cplusplus. */ +/*@}*/ +#endif /*_FSL_I2C_DMA_H_*/ diff --git a/drivers/fsl_llwu.c b/drivers/fsl_llwu.c new file mode 100644 index 0000000..c27b91e --- /dev/null +++ b/drivers/fsl_llwu.c @@ -0,0 +1,404 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_llwu.h" + +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) +void LLWU_SetExternalWakeupPinMode(LLWU_Type *base, uint32_t pinIndex, llwu_external_pin_mode_t pinMode) +{ +#if (defined(FSL_FEATURE_LLWU_REG_BITWIDTH) && (FSL_FEATURE_LLWU_REG_BITWIDTH == 32)) + volatile uint32_t *regBase; + uint32_t regOffset; + uint32_t reg; + + switch (pinIndex >> 4U) + { + case 0U: + regBase = &base->PE1; + break; +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 16)) + case 1U: + regBase = &base->PE2; + break; +#endif + default: + regBase = NULL; + break; + } +#else + volatile uint8_t *regBase; + uint8_t regOffset; + uint8_t reg; + switch (pinIndex >> 2U) + { + case 0U: + regBase = &base->PE1; + break; + case 1U: + regBase = &base->PE2; + break; +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 8)) + case 2U: + regBase = &base->PE3; + break; +#endif +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 12)) + case 3U: + regBase = &base->PE4; + break; +#endif +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 16)) + case 4U: + regBase = &base->PE5; + break; +#endif +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 20)) + case 5U: + regBase = &base->PE6; + break; +#endif +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 24)) + case 6U: + regBase = &base->PE7; + break; +#endif +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 28)) + case 7U: + regBase = &base->PE8; + break; +#endif + default: + regBase = NULL; + break; + } +#endif /* FSL_FEATURE_LLWU_REG_BITWIDTH == 32 */ + + if (regBase) + { + reg = *regBase; +#if (defined(FSL_FEATURE_LLWU_REG_BITWIDTH) && (FSL_FEATURE_LLWU_REG_BITWIDTH == 32)) + regOffset = ((pinIndex & 0x0FU) << 1U); +#else + regOffset = ((pinIndex & 0x03U) << 1U); +#endif + reg &= ~(0x3U << regOffset); + reg |= ((uint32_t)pinMode << regOffset); + *regBase = reg; + } +} + +bool LLWU_GetExternalWakeupPinFlag(LLWU_Type *base, uint32_t pinIndex) +{ +#if (defined(FSL_FEATURE_LLWU_REG_BITWIDTH) && (FSL_FEATURE_LLWU_REG_BITWIDTH == 32)) + return (bool)(base->PF & (1U << pinIndex)); +#else + volatile uint8_t *regBase; + + switch (pinIndex >> 3U) + { +#if (defined(FSL_FEATURE_LLWU_HAS_PF) && FSL_FEATURE_LLWU_HAS_PF) + case 0U: + regBase = &base->PF1; + break; +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 8)) + case 1U: + regBase = &base->PF2; + break; +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 16)) + case 2U: + regBase = &base->PF3; + break; +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 24)) + case 3U: + regBase = &base->PF4; + break; +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ +#else + case 0U: + regBase = &base->F1; + break; +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 8)) + case 1U: + regBase = &base->F2; + break; +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 16)) + case 2U: + regBase = &base->F3; + break; +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 24)) + case 3U: + regBase = &base->F4; + break; +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ +#endif /* FSL_FEATURE_LLWU_HAS_PF */ + default: + regBase = NULL; + break; + } + + if (regBase) + { + return (bool)(*regBase & (1U << pinIndex % 8)); + } + else + { + return false; + } +#endif /* FSL_FEATURE_LLWU_REG_BITWIDTH */ +} + +void LLWU_ClearExternalWakeupPinFlag(LLWU_Type *base, uint32_t pinIndex) +{ +#if (defined(FSL_FEATURE_LLWU_REG_BITWIDTH) && (FSL_FEATURE_LLWU_REG_BITWIDTH == 32)) + base->PF = (1U << pinIndex); +#else + volatile uint8_t *regBase; + switch (pinIndex >> 3U) + { +#if (defined(FSL_FEATURE_LLWU_HAS_PF) && FSL_FEATURE_LLWU_HAS_PF) + case 0U: + regBase = &base->PF1; + break; +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 8)) + case 1U: + regBase = &base->PF2; + break; +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 16)) + case 2U: + regBase = &base->PF3; + break; +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 24)) + case 3U: + regBase = &base->PF4; + break; +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ +#else + case 0U: + regBase = &base->F1; + break; +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 8)) + case 1U: + regBase = &base->F2; + break; +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 16)) + case 2U: + regBase = &base->F3; + break; +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 24)) + case 3U: + regBase = &base->F4; + break; +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ +#endif /* FSL_FEATURE_LLWU_HAS_PF */ + default: + regBase = NULL; + break; + } + if (regBase) + { + *regBase = (1U << pinIndex % 8U); + } +#endif /* FSL_FEATURE_LLWU_REG_BITWIDTH */ +} +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ + +#if (defined(FSL_FEATURE_LLWU_HAS_PIN_FILTER) && FSL_FEATURE_LLWU_HAS_PIN_FILTER) +void LLWU_SetPinFilterMode(LLWU_Type *base, uint32_t filterIndex, llwu_external_pin_filter_mode_t filterMode) +{ +#if (defined(FSL_FEATURE_LLWU_REG_BITWIDTH) && (FSL_FEATURE_LLWU_REG_BITWIDTH == 32)) + uint32_t reg; + + reg = base->FILT; + reg &= ~((LLWU_FILT_FILTSEL1_MASK | LLWU_FILT_FILTE1_MASK) << (filterIndex * 8U - 1U)); + reg |= (((filterMode.pinIndex << LLWU_FILT_FILTSEL1_SHIFT) | (filterMode.filterMode << LLWU_FILT_FILTE1_SHIFT) + /* Clear the Filter Detect Flag */ + | LLWU_FILT_FILTF1_MASK) + << (filterIndex * 8U - 1U)); + base->FILT = reg; +#else + volatile uint8_t *regBase; + uint8_t reg; + + switch (filterIndex) + { + case 1: + regBase = &base->FILT1; + break; +#if (defined(FSL_FEATURE_LLWU_HAS_PIN_FILTER) && (FSL_FEATURE_LLWU_HAS_PIN_FILTER > 1)) + case 2: + regBase = &base->FILT2; + break; +#endif /* FSL_FEATURE_LLWU_HAS_PIN_FILTER */ +#if (defined(FSL_FEATURE_LLWU_HAS_PIN_FILTER) && (FSL_FEATURE_LLWU_HAS_PIN_FILTER > 2)) + case 3: + regBase = &base->FILT3; + break; +#endif /* FSL_FEATURE_LLWU_HAS_PIN_FILTER */ +#if (defined(FSL_FEATURE_LLWU_HAS_PIN_FILTER) && (FSL_FEATURE_LLWU_HAS_PIN_FILTER > 3)) + case 4: + regBase = &base->FILT4; + break; +#endif /* FSL_FEATURE_LLWU_HAS_PIN_FILTER */ + default: + regBase = NULL; + break; + } + + if (regBase) + { + reg = *regBase; + reg &= ~(LLWU_FILT1_FILTSEL_MASK | LLWU_FILT1_FILTE_MASK); + reg |= ((uint32_t)filterMode.pinIndex << LLWU_FILT1_FILTSEL_SHIFT); + reg |= ((uint32_t)filterMode.filterMode << LLWU_FILT1_FILTE_SHIFT); + /* Clear the Filter Detect Flag */ + reg |= LLWU_FILT1_FILTF_MASK; + *regBase = reg; + } +#endif /* FSL_FEATURE_LLWU_REG_BITWIDTH */ +} + +bool LLWU_GetPinFilterFlag(LLWU_Type *base, uint32_t filterIndex) +{ +#if (defined(FSL_FEATURE_LLWU_REG_BITWIDTH) && (FSL_FEATURE_LLWU_REG_BITWIDTH == 32)) + return (bool)(base->FILT & (1U << (filterIndex * 8U - 1))); +#else + bool status = false; + + switch (filterIndex) + { + case 1: + status = (base->FILT1 & LLWU_FILT1_FILTF_MASK); + break; +#if (defined(FSL_FEATURE_LLWU_HAS_PIN_FILTER) && (FSL_FEATURE_LLWU_HAS_PIN_FILTER > 1)) + case 2: + status = (base->FILT2 & LLWU_FILT2_FILTF_MASK); + break; +#endif /* FSL_FEATURE_LLWU_HAS_PIN_FILTER */ +#if (defined(FSL_FEATURE_LLWU_HAS_PIN_FILTER) && (FSL_FEATURE_LLWU_HAS_PIN_FILTER > 2)) + case 3: + status = (base->FILT3 & LLWU_FILT3_FILTF_MASK); + break; +#endif /* FSL_FEATURE_LLWU_HAS_PIN_FILTER */ +#if (defined(FSL_FEATURE_LLWU_HAS_PIN_FILTER) && (FSL_FEATURE_LLWU_HAS_PIN_FILTER > 3)) + case 4: + status = (base->FILT4 & LLWU_FILT4_FILTF_MASK); + break; +#endif /* FSL_FEATURE_LLWU_HAS_PIN_FILTER */ + default: + break; + } + + return status; +#endif /* FSL_FEATURE_LLWU_REG_BITWIDTH */ +} + +void LLWU_ClearPinFilterFlag(LLWU_Type *base, uint32_t filterIndex) +{ +#if (defined(FSL_FEATURE_LLWU_REG_BITWIDTH) && (FSL_FEATURE_LLWU_REG_BITWIDTH == 32)) + uint32_t reg; + + reg = base->FILT; + switch (filterIndex) + { + case 1: + reg |= LLWU_FILT_FILTF1_MASK; + break; + case 2: + reg |= LLWU_FILT_FILTF2_MASK; + break; + case 3: + reg |= LLWU_FILT_FILTF3_MASK; + break; + case 4: + reg |= LLWU_FILT_FILTF4_MASK; + break; + default: + break; + } + base->FILT = reg; +#else + volatile uint8_t *regBase; + uint8_t reg; + + switch (filterIndex) + { + case 1: + regBase = &base->FILT1; + break; +#if (defined(FSL_FEATURE_LLWU_HAS_PIN_FILTER) && (FSL_FEATURE_LLWU_HAS_PIN_FILTER > 1)) + case 2: + regBase = &base->FILT2; + break; +#endif /* FSL_FEATURE_LLWU_HAS_PIN_FILTER */ +#if (defined(FSL_FEATURE_LLWU_HAS_PIN_FILTER) && (FSL_FEATURE_LLWU_HAS_PIN_FILTER > 2)) + case 3: + regBase = &base->FILT3; + break; +#endif /* FSL_FEATURE_LLWU_HAS_PIN_FILTER */ +#if (defined(FSL_FEATURE_LLWU_HAS_PIN_FILTER) && (FSL_FEATURE_LLWU_HAS_PIN_FILTER > 3)) + case 4: + regBase = &base->FILT4; + break; +#endif /* FSL_FEATURE_LLWU_HAS_PIN_FILTER */ + default: + regBase = NULL; + break; + } + + if (regBase) + { + reg = *regBase; + reg |= LLWU_FILT1_FILTF_MASK; + *regBase = reg; + } +#endif /* FSL_FEATURE_LLWU_REG_BITWIDTH */ +} +#endif /* FSL_FEATURE_LLWU_HAS_PIN_FILTER */ + +#if (defined(FSL_FEATURE_LLWU_HAS_RESET_ENABLE) && FSL_FEATURE_LLWU_HAS_RESET_ENABLE) +void LLWU_SetResetPinMode(LLWU_Type *base, bool pinEnable, bool enableInLowLeakageMode) +{ + uint8_t reg; + + reg = base->RST; + reg &= ~(LLWU_RST_LLRSTE_MASK | LLWU_RST_RSTFILT_MASK); + reg |= + (((uint32_t)pinEnable << LLWU_RST_LLRSTE_SHIFT) | ((uint32_t)enableInLowLeakageMode << LLWU_RST_RSTFILT_SHIFT)); + base->RST = reg; +} +#endif /* FSL_FEATURE_LLWU_HAS_RESET_ENABLE */ diff --git a/drivers/fsl_llwu.h b/drivers/fsl_llwu.h new file mode 100644 index 0000000..1384d51 --- /dev/null +++ b/drivers/fsl_llwu.h @@ -0,0 +1,320 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_LLWU_H_ +#define _FSL_LLWU_H_ + +#include "fsl_common.h" + +/*! @addtogroup llwu */ +/*! @{ */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief LLWU driver version 2.0.1. */ +#define FSL_LLWU_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) +/*@}*/ + +/*! + * @brief External input pin control modes + */ +typedef enum _llwu_external_pin_mode +{ + kLLWU_ExternalPinDisable = 0U, /*!< Pin disabled as wakeup input. */ + kLLWU_ExternalPinRisingEdge = 1U, /*!< Pin enabled with rising edge detection. */ + kLLWU_ExternalPinFallingEdge = 2U, /*!< Pin enabled with falling edge detection.*/ + kLLWU_ExternalPinAnyEdge = 3U /*!< Pin enabled with any change detection. */ +} llwu_external_pin_mode_t; + +/*! + * @brief Digital filter control modes + */ +typedef enum _llwu_pin_filter_mode +{ + kLLWU_PinFilterDisable = 0U, /*!< Filter disabled. */ + kLLWU_PinFilterRisingEdge = 1U, /*!< Filter positive edge detection.*/ + kLLWU_PinFilterFallingEdge = 2U, /*!< Filter negative edge detection.*/ + kLLWU_PinFilterAnyEdge = 3U /*!< Filter any edge detection. */ +} llwu_pin_filter_mode_t; + +#if (defined(FSL_FEATURE_LLWU_HAS_VERID) && FSL_FEATURE_LLWU_HAS_VERID) +/*! + * @brief IP version ID definition. + */ +typedef struct _llwu_version_id +{ + uint16_t feature; /*!< Feature Specification Number. */ + uint8_t minor; /*!< Minor version number. */ + uint8_t major; /*!< Major version number. */ +} llwu_version_id_t; +#endif /* FSL_FEATURE_LLWU_HAS_VERID */ + +#if (defined(FSL_FEATURE_LLWU_HAS_PARAM) && FSL_FEATURE_LLWU_HAS_PARAM) +/*! + * @brief IP parameter definition. + */ +typedef struct _llwu_param +{ + uint8_t filters; /*!< Number of pin filter. */ + uint8_t dmas; /*!< Number of wakeup DMA. */ + uint8_t modules; /*!< Number of wakeup module. */ + uint8_t pins; /*!< Number of wake up pin. */ +} llwu_param_t; +#endif /* FSL_FEATURE_LLWU_HAS_PARAM */ + +#if (defined(FSL_FEATURE_LLWU_HAS_PIN_FILTER) && FSL_FEATURE_LLWU_HAS_PIN_FILTER) +/*! + * @brief External input pin filter control structure + */ +typedef struct _llwu_external_pin_filter_mode +{ + uint32_t pinIndex; /*!< Pin number */ + llwu_pin_filter_mode_t filterMode; /*!< Filter mode */ +} llwu_external_pin_filter_mode_t; +#endif /* FSL_FEATURE_LLWU_HAS_PIN_FILTER */ + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name Low-Leakage Wakeup Unit Control APIs + * @{ + */ + +#if (defined(FSL_FEATURE_LLWU_HAS_VERID) && FSL_FEATURE_LLWU_HAS_VERID) +/*! + * @brief Gets the LLWU version ID. + * + * This function gets the LLWU version ID, including major version number, + * minor version number, and feature specification number. + * + * @param base LLWU peripheral base address. + * @param versionId Pointer to version ID structure. + */ +static inline void LLWU_GetVersionId(LLWU_Type *base, llwu_version_id_t *versionId) +{ + *((uint32_t *)versionId) = base->VERID; +} +#endif /* FSL_FEATURE_LLWU_HAS_VERID */ + +#if (defined(FSL_FEATURE_LLWU_HAS_PARAM) && FSL_FEATURE_LLWU_HAS_PARAM) +/*! + * @brief Gets the LLWU parameter. + * + * This function gets the LLWU parameter, including wakeup pin number, module + * number, DMA number, and pin filter number. + * + * @param base LLWU peripheral base address. + * @param param Pointer to LLWU param structure. + */ +static inline void LLWU_GetParam(LLWU_Type *base, llwu_param_t *param) +{ + *((uint32_t *)param) = base->PARAM; +} +#endif /* FSL_FEATURE_LLWU_HAS_PARAM */ + +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) +/*! + * @brief Sets the external input pin source mode. + * + * This function sets the external input pin source mode that is used + * as a wake up source. + * + * @param base LLWU peripheral base address. + * @param pinIndex pin index which to be enabled as external wakeup source, start from 1. + * @param pinMode pin configuration mode defined in llwu_external_pin_modes_t + */ +void LLWU_SetExternalWakeupPinMode(LLWU_Type *base, uint32_t pinIndex, llwu_external_pin_mode_t pinMode); + +/*! + * @brief Gets the external wakeup source flag. + * + * This function checks the external pin flag to detect whether the MCU is + * woke up by the specific pin. + * + * @param base LLWU peripheral base address. + * @param pinIndex pin index, start from 1. + * @return true if the specific pin is wake up source. + */ +bool LLWU_GetExternalWakeupPinFlag(LLWU_Type *base, uint32_t pinIndex); + +/*! + * @brief Clears the external wakeup source flag. + * + * This function clears the external wakeup source flag for a specific pin. + * + * @param base LLWU peripheral base address. + * @param pinIndex pin index, start from 1. + */ +void LLWU_ClearExternalWakeupPinFlag(LLWU_Type *base, uint32_t pinIndex); +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ + +#if (defined(FSL_FEATURE_LLWU_HAS_INTERNAL_MODULE) && FSL_FEATURE_LLWU_HAS_INTERNAL_MODULE) +/*! + * @brief Enables/disables the internal module source. + * + * This function enables/disables the internal module source mode that is used + * as a wake up source. + * + * @param base LLWU peripheral base address. + * @param moduleIndex module index which to be enabled as internal wakeup source, start from 1. + * @param enable enable or disable setting + */ +static inline void LLWU_EnableInternalModuleInterruptWakup(LLWU_Type *base, uint32_t moduleIndex, bool enable) +{ + if (enable) + { + base->ME |= 1U << moduleIndex; + } + else + { + base->ME &= ~(1U << moduleIndex); + } +} + +/*! + * @brief Gets the external wakeup source flag. + * + * This function checks the external pin flag to detect whether the system is + * woke up by the specific pin. + * + * @param base LLWU peripheral base address. + * @param moduleIndex module index, start from 1. + * @return true if the specific pin is wake up source. + */ +static inline bool LLWU_GetInternalWakeupModuleFlag(LLWU_Type *base, uint32_t moduleIndex) +{ +#if (defined(FSL_FEATURE_LLWU_HAS_MF) && FSL_FEATURE_LLWU_HAS_MF) +#if (defined(FSL_FEATURE_LLWU_REG_BITWIDTH) && (FSL_FEATURE_LLWU_REG_BITWIDTH == 32)) + return (bool)(base->MF & (1U << moduleIndex)); +#else + return (bool)(base->MF5 & (1U << moduleIndex)); +#endif /* FSL_FEATURE_LLWU_REG_BITWIDTH */ +#else +#if (defined(FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN) && (FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN > 16)) + return (bool)(base->F5 & (1U << moduleIndex)); +#else +#if (defined(FSL_FEATURE_LLWU_HAS_PF) && FSL_FEATURE_LLWU_HAS_PF) + return (bool)(base->PF3 & (1U << moduleIndex)); +#else + return (bool)(base->F3 & (1U << moduleIndex)); +#endif /* FSL_FEATURE_LLWU_HAS_PF */ +#endif /* FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN */ +#endif /* FSL_FEATURE_LLWU_HAS_MF */ +} +#endif /* FSL_FEATURE_LLWU_HAS_INTERNAL_MODULE */ + +#if (defined(FSL_FEATURE_LLWU_HAS_DMA_ENABLE_REG) && FSL_FEATURE_LLWU_HAS_DMA_ENABLE_REG) +/*! + * @brief Enables/disables the internal module DMA wakeup source. + * + * This function enables/disables the internal DMA that is used as a wake up source. + * + * @param base LLWU peripheral base address. + * @param moduleIndex Internal module index which used as DMA request source, start from 1. + * @param enable Enable or disable DMA request source + */ +static inline void LLWU_EnableInternalModuleDmaRequestWakup(LLWU_Type *base, uint32_t moduleIndex, bool enable) +{ + if (enable) + { + base->DE |= 1U << moduleIndex; + } + else + { + base->DE &= ~(1U << moduleIndex); + } +} +#endif /* FSL_FEATURE_LLWU_HAS_DMA_ENABLE_REG */ + +#if (defined(FSL_FEATURE_LLWU_HAS_PIN_FILTER) && FSL_FEATURE_LLWU_HAS_PIN_FILTER) +/*! + * @brief Sets the pin filter configuration. + * + * This function sets the pin filter configuration. + * + * @param base LLWU peripheral base address. + * @param filterIndex pin filter index which used to enable/disable the digital filter, start from 1. + * @param filterMode filter mode configuration + */ +void LLWU_SetPinFilterMode(LLWU_Type *base, uint32_t filterIndex, llwu_external_pin_filter_mode_t filterMode); + +/*! + * @brief Gets the pin filter configuration. + * + * This function gets the pin filter flag. + * + * @param base LLWU peripheral base address. + * @param filterIndex pin filter index, start from 1. + * @return true if the flag is a source of existing a low-leakage power mode. + */ +bool LLWU_GetPinFilterFlag(LLWU_Type *base, uint32_t filterIndex); + +/*! + * @brief Clear the pin filter configuration. + * + * This function clear the pin filter flag. + * + * @param base LLWU peripheral base address. + * @param filterIndex pin filter index which to be clear the flag, start from 1. + */ +void LLWU_ClearPinFilterFlag(LLWU_Type *base, uint32_t filterIndex); + +#endif /* FSL_FEATURE_LLWU_HAS_PIN_FILTER */ + +#if (defined(FSL_FEATURE_LLWU_HAS_RESET_ENABLE) && FSL_FEATURE_LLWU_HAS_RESET_ENABLE) +/*! + * @brief Sets the reset pin mode. + * + * This function sets how the reset pin is used as a low leakage mode exit source. + * + * @param pinEnable Enable reset pin filter + * @param pinFilterEnable Specify whether pin filter is enabled in Low-Leakage power mode. + */ +void LLWU_SetResetPinMode(LLWU_Type *base, bool pinEnable, bool enableInLowLeakageMode); +#endif /* FSL_FEATURE_LLWU_HAS_RESET_ENABLE */ + +/*@}*/ + +#if defined(__cplusplus) +} +#endif + +/*! @}*/ +#endif /* _FSL_LLWU_H_*/ diff --git a/drivers/fsl_lptmr.c b/drivers/fsl_lptmr.c new file mode 100644 index 0000000..b3dcc89 --- /dev/null +++ b/drivers/fsl_lptmr.c @@ -0,0 +1,117 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_lptmr.h" + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Gets the instance from the base address to be used to gate or ungate the module clock + * + * @param base LPTMR peripheral base address + * + * @return The LPTMR instance + */ +static uint32_t LPTMR_GetInstance(LPTMR_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/*! @brief Pointers to LPTMR bases for each instance. */ +static LPTMR_Type *const s_lptmrBases[] = LPTMR_BASE_PTRS; + +/*! @brief Pointers to LPTMR clocks for each instance. */ +static const clock_ip_name_t s_lptmrClocks[] = LPTMR_CLOCKS; + +/******************************************************************************* + * Code + ******************************************************************************/ +static uint32_t LPTMR_GetInstance(LPTMR_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_LPTMR_COUNT; instance++) + { + if (s_lptmrBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_LPTMR_COUNT); + + return instance; +} + +void LPTMR_Init(LPTMR_Type *base, const lptmr_config_t *config) +{ + assert(config); + + /* Ungate the LPTMR clock*/ + CLOCK_EnableClock(s_lptmrClocks[LPTMR_GetInstance(base)]); + + /* Configure the timers operation mode and input pin setup */ + base->CSR = (LPTMR_CSR_TMS(config->timerMode) | LPTMR_CSR_TFC(config->enableFreeRunning) | + LPTMR_CSR_TPP(config->pinPolarity) | LPTMR_CSR_TPS(config->pinSelect)); + + /* Configure the prescale value and clock source */ + base->PSR = (LPTMR_PSR_PRESCALE(config->value) | LPTMR_PSR_PBYP(config->bypassPrescaler) | + LPTMR_PSR_PCS(config->prescalerClockSource)); +} + +void LPTMR_Deinit(LPTMR_Type *base) +{ + /* Disable the LPTMR and reset the internal logic */ + base->CSR &= ~LPTMR_CSR_TEN_MASK; + /* Gate the LPTMR clock*/ + CLOCK_DisableClock(s_lptmrClocks[LPTMR_GetInstance(base)]); +} + +void LPTMR_GetDefaultConfig(lptmr_config_t *config) +{ + assert(config); + + /* Use time counter mode */ + config->timerMode = kLPTMR_TimerModeTimeCounter; + /* Use input 0 as source in pulse counter mode */ + config->pinSelect = kLPTMR_PinSelectInput_0; + /* Pulse input pin polarity is active-high */ + config->pinPolarity = kLPTMR_PinPolarityActiveHigh; + /* Counter resets whenever TCF flag is set */ + config->enableFreeRunning = false; + /* Bypass the prescaler */ + config->bypassPrescaler = true; + /* LPTMR clock source */ + config->prescalerClockSource = kLPTMR_PrescalerClock_1; + /* Divide the prescaler clock by 2 */ + config->value = kLPTMR_Prescale_Glitch_0; +} diff --git a/drivers/fsl_lptmr.h b/drivers/fsl_lptmr.h new file mode 100644 index 0000000..d022cbb --- /dev/null +++ b/drivers/fsl_lptmr.h @@ -0,0 +1,370 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_LPTMR_H_ +#define _FSL_LPTMR_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup lptmr + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +#define FSL_LPTMR_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) /*!< Version 2.0.0 */ +/*@}*/ + +/*! @brief LPTMR pin selection, used in pulse counter mode.*/ +typedef enum _lptmr_pin_select +{ + kLPTMR_PinSelectInput_0 = 0x0U, /*!< Pulse counter input 0 is selected */ + kLPTMR_PinSelectInput_1 = 0x1U, /*!< Pulse counter input 1 is selected */ + kLPTMR_PinSelectInput_2 = 0x2U, /*!< Pulse counter input 2 is selected */ + kLPTMR_PinSelectInput_3 = 0x3U /*!< Pulse counter input 3 is selected */ +} lptmr_pin_select_t; + +/*! @brief LPTMR pin polarity, used in pulse counter mode.*/ +typedef enum _lptmr_pin_polarity +{ + kLPTMR_PinPolarityActiveHigh = 0x0U, /*!< Pulse Counter input source is active-high */ + kLPTMR_PinPolarityActiveLow = 0x1U /*!< Pulse Counter input source is active-low */ +} lptmr_pin_polarity_t; + +/*! @brief LPTMR timer mode selection.*/ +typedef enum _lptmr_timer_mode +{ + kLPTMR_TimerModeTimeCounter = 0x0U, /*!< Time Counter mode */ + kLPTMR_TimerModePulseCounter = 0x1U /*!< Pulse Counter mode */ +} lptmr_timer_mode_t; + +/*! @brief LPTMR prescaler/glitch filter values*/ +typedef enum _lptmr_prescaler_glitch_value +{ + kLPTMR_Prescale_Glitch_0 = 0x0U, /*!< Prescaler divide 2, glitch filter does not support this setting */ + kLPTMR_Prescale_Glitch_1 = 0x1U, /*!< Prescaler divide 4, glitch filter 2 */ + kLPTMR_Prescale_Glitch_2 = 0x2U, /*!< Prescaler divide 8, glitch filter 4 */ + kLPTMR_Prescale_Glitch_3 = 0x3U, /*!< Prescaler divide 16, glitch filter 8 */ + kLPTMR_Prescale_Glitch_4 = 0x4U, /*!< Prescaler divide 32, glitch filter 16 */ + kLPTMR_Prescale_Glitch_5 = 0x5U, /*!< Prescaler divide 64, glitch filter 32 */ + kLPTMR_Prescale_Glitch_6 = 0x6U, /*!< Prescaler divide 128, glitch filter 64 */ + kLPTMR_Prescale_Glitch_7 = 0x7U, /*!< Prescaler divide 256, glitch filter 128 */ + kLPTMR_Prescale_Glitch_8 = 0x8U, /*!< Prescaler divide 512, glitch filter 256 */ + kLPTMR_Prescale_Glitch_9 = 0x9U, /*!< Prescaler divide 1024, glitch filter 512*/ + kLPTMR_Prescale_Glitch_10 = 0xAU, /*!< Prescaler divide 2048 glitch filter 1024 */ + kLPTMR_Prescale_Glitch_11 = 0xBU, /*!< Prescaler divide 4096, glitch filter 2048 */ + kLPTMR_Prescale_Glitch_12 = 0xCU, /*!< Prescaler divide 8192, glitch filter 4096 */ + kLPTMR_Prescale_Glitch_13 = 0xDU, /*!< Prescaler divide 16384, glitch filter 8192 */ + kLPTMR_Prescale_Glitch_14 = 0xEU, /*!< Prescaler divide 32768, glitch filter 16384 */ + kLPTMR_Prescale_Glitch_15 = 0xFU /*!< Prescaler divide 65536, glitch filter 32768 */ +} lptmr_prescaler_glitch_value_t; + +/*! + * @brief LPTMR prescaler/glitch filter clock select. + * @note Clock connections are SoC-specific + */ +typedef enum _lptmr_prescaler_clock_select +{ + kLPTMR_PrescalerClock_0 = 0x0U, /*!< Prescaler/glitch filter clock 0 selected. */ + kLPTMR_PrescalerClock_1 = 0x1U, /*!< Prescaler/glitch filter clock 1 selected. */ + kLPTMR_PrescalerClock_2 = 0x2U, /*!< Prescaler/glitch filter clock 2 selected. */ + kLPTMR_PrescalerClock_3 = 0x3U, /*!< Prescaler/glitch filter clock 3 selected. */ +} lptmr_prescaler_clock_select_t; + +/*! @brief List of LPTMR interrupts */ +typedef enum _lptmr_interrupt_enable +{ + kLPTMR_TimerInterruptEnable = LPTMR_CSR_TIE_MASK, /*!< Timer interrupt enable */ +} lptmr_interrupt_enable_t; + +/*! @brief List of LPTMR status flags */ +typedef enum _lptmr_status_flags +{ + kLPTMR_TimerCompareFlag = LPTMR_CSR_TCF_MASK, /*!< Timer compare flag */ +} lptmr_status_flags_t; + +/*! + * @brief LPTMR config structure + * + * This structure holds the configuration settings for the LPTMR peripheral. To initialize this + * structure to reasonable defaults, call the LPTMR_GetDefaultConfig() function and pass a + * pointer to your config structure instance. + * + * The config struct can be made const so it resides in flash + */ +typedef struct _lptmr_config +{ + lptmr_timer_mode_t timerMode; /*!< Time counter mode or pulse counter mode */ + lptmr_pin_select_t pinSelect; /*!< LPTMR pulse input pin select; used only in pulse counter mode */ + lptmr_pin_polarity_t pinPolarity; /*!< LPTMR pulse input pin polarity; used only in pulse counter mode */ + bool enableFreeRunning; /*!< true: enable free running, counter is reset on overflow + false: counter is reset when the compare flag is set */ + bool bypassPrescaler; /*!< true: bypass prescaler; false: use clock from prescaler */ + lptmr_prescaler_clock_select_t prescalerClockSource; /*!< LPTMR clock source */ + lptmr_prescaler_glitch_value_t value; /*!< Prescaler or glitch filter value */ +} lptmr_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name Initialization and deinitialization + * @{ + */ + +/*! + * @brief Ungate the LPTMR clock and configures the peripheral for basic operation. + * + * @note This API should be called at the beginning of the application using the LPTMR driver. + * + * @param base LPTMR peripheral base address + * @param config Pointer to user's LPTMR config structure. + */ +void LPTMR_Init(LPTMR_Type *base, const lptmr_config_t *config); + +/*! + * @brief Gate the LPTMR clock + * + * @param base LPTMR peripheral base address + */ +void LPTMR_Deinit(LPTMR_Type *base); + +/*! + * @brief Fill in the LPTMR config struct with the default settings + * + * The default values are: + * @code + * config->timerMode = kLPTMR_TimerModeTimeCounter; + * config->pinSelect = kLPTMR_PinSelectInput_0; + * config->pinPolarity = kLPTMR_PinPolarityActiveHigh; + * config->enableFreeRunning = false; + * config->bypassPrescaler = true; + * config->prescalerClockSource = kLPTMR_PrescalerClock_1; + * config->value = kLPTMR_Prescale_Glitch_0; + * @endcode + * @param config Pointer to user's LPTMR config structure. + */ +void LPTMR_GetDefaultConfig(lptmr_config_t *config); + +/*! @}*/ + +/*! + * @name Interrupt Interface + * @{ + */ + +/*! + * @brief Enables the selected LPTMR interrupts. + * + * @param base LPTMR peripheral base address + * @param mask The interrupts to enable. This is a logical OR of members of the + * enumeration ::lptmr_interrupt_enable_t + */ +static inline void LPTMR_EnableInterrupts(LPTMR_Type *base, uint32_t mask) +{ + uint32_t reg = base->CSR; + + /* Clear the TCF bit so that we don't clear this w1c bit when writing back */ + reg &= ~(LPTMR_CSR_TCF_MASK); + reg |= mask; + base->CSR = reg; +} + +/*! + * @brief Disables the selected LPTMR interrupts. + * + * @param base LPTMR peripheral base address + * @param mask The interrupts to disable. This is a logical OR of members of the + * enumeration ::lptmr_interrupt_enable_t + */ +static inline void LPTMR_DisableInterrupts(LPTMR_Type *base, uint32_t mask) +{ + uint32_t reg = base->CSR; + + /* Clear the TCF bit so that we don't clear this w1c bit when writing back */ + reg &= ~(LPTMR_CSR_TCF_MASK); + reg &= ~mask; + base->CSR = reg; +} + +/*! + * @brief Gets the enabled LPTMR interrupts. + * + * @param base LPTMR peripheral base address + * + * @return The enabled interrupts. This is the logical OR of members of the + * enumeration ::lptmr_interrupt_enable_t + */ +static inline uint32_t LPTMR_GetEnabledInterrupts(LPTMR_Type *base) +{ + return (base->CSR & LPTMR_CSR_TIE_MASK); +} + +/*! @}*/ + +/*! + * @name Status Interface + * @{ + */ + +/*! + * @brief Gets the LPTMR status flags + * + * @param base LPTMR peripheral base address + * + * @return The status flags. This is the logical OR of members of the + * enumeration ::lptmr_status_flags_t + */ +static inline uint32_t LPTMR_GetStatusFlags(LPTMR_Type *base) +{ + return (base->CSR & LPTMR_CSR_TCF_MASK); +} + +/*! + * @brief Clears the LPTMR status flags + * + * @param base LPTMR peripheral base address + * @param mask The status flags to clear. This is a logical OR of members of the + * enumeration ::lptmr_status_flags_t + */ +static inline void LPTMR_ClearStatusFlags(LPTMR_Type *base, uint32_t mask) +{ + base->CSR |= mask; +} + +/*! @}*/ + +/*! + * @name Read and Write the timer period + * @{ + */ + +/*! + * @brief Sets the timer period in units of count. + * + * Timers counts from 0 till it equals the count value set here. The count value is written to + * the CMR register. + * + * @note + * 1. The TCF flag is set with the CNR equals the count provided here and then increments. + * 2. User can call the utility macros provided in fsl_common.h to convert to ticks + * + * @param base LPTMR peripheral base address + * @param ticks Timer period in units of ticks + */ +static inline void LPTMR_SetTimerPeriod(LPTMR_Type *base, uint16_t ticks) +{ + base->CMR = ticks; +} + +/*! + * @brief Reads the current timer counting value. + * + * This function returns the real-time timer counting value, in a range from 0 to a + * timer period. + * + * @note User can call the utility macros provided in fsl_common.h to convert ticks to usec or msec + * + * @param base LPTMR peripheral base address + * + * @return Current counter value in ticks + */ +static inline uint16_t LPTMR_GetCurrentTimerCount(LPTMR_Type *base) +{ + /* Must first write any value to the CNR. This synchronizes and registers the current value + * of the CNR into a temporary register which can then be read + */ + base->CNR = 0U; + return (uint16_t)base->CNR; +} + +/*! @}*/ + +/*! + * @name Timer Start and Stop + * @{ + */ + +/*! + * @brief Starts the timer counting. + * + * After calling this function, the timer counts up to the CMR register value. + * Each time the timer reaches CMR value and then increments, it generates a + * trigger pulse and sets the timeout interrupt flag. An interrupt is also + * triggered if the timer interrupt is enabled. + * + * @param base LPTMR peripheral base address + */ +static inline void LPTMR_StartTimer(LPTMR_Type *base) +{ + uint32_t reg = base->CSR; + + /* Clear the TCF bit so that we don't clear this w1c bit when writing back */ + reg &= ~(LPTMR_CSR_TCF_MASK); + reg |= LPTMR_CSR_TEN_MASK; + base->CSR = reg; +} + +/*! + * @brief Stops the timer counting. + * + * This function stops the timer counting and resets the timer's counter register + * + * @param base LPTMR peripheral base address + */ +static inline void LPTMR_StopTimer(LPTMR_Type *base) +{ + uint32_t reg = base->CSR; + + /* Clear the TCF bit so that we don't clear this w1c bit when writing back */ + reg &= ~(LPTMR_CSR_TCF_MASK); + reg &= ~LPTMR_CSR_TEN_MASK; + base->CSR = reg; +} + +/*! @}*/ + +#if defined(__cplusplus) +} +#endif + +/*! @}*/ + +#endif /* _FSL_LPTMR_H_ */ diff --git a/drivers/fsl_mpu.c b/drivers/fsl_mpu.c new file mode 100644 index 0000000..8e0e77d --- /dev/null +++ b/drivers/fsl_mpu.c @@ -0,0 +1,239 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_mpu.h" + +/******************************************************************************* + * Variables + ******************************************************************************/ + +const clock_ip_name_t g_mpuClock[FSL_FEATURE_SOC_MPU_COUNT] = MPU_CLOCKS; + +/******************************************************************************* + * Codes + ******************************************************************************/ + +void MPU_Init(MPU_Type *base, const mpu_config_t *config) +{ + assert(config); + uint8_t count; + + /* Un-gate MPU clock */ + CLOCK_EnableClock(g_mpuClock[0]); + + /* Initializes the regions. */ + for (count = 1; count < FSL_FEATURE_MPU_DESCRIPTOR_COUNT; count++) + { + base->WORD[count][3] = 0; /* VLD/VID+PID. */ + base->WORD[count][0] = 0; /* Start address. */ + base->WORD[count][1] = 0; /* End address. */ + base->WORD[count][2] = 0; /* Access rights. */ + base->RGDAAC[count] = 0; /* Alternate access rights. */ + } + + /* MPU configure. */ + while (config) + { + MPU_SetRegionConfig(base, &(config->regionConfig)); + config = config->next; + } + /* Enable MPU. */ + MPU_Enable(base, true); +} + +void MPU_Deinit(MPU_Type *base) +{ + /* Disable MPU. */ + MPU_Enable(base, false); + + /* Gate the clock. */ + CLOCK_DisableClock(g_mpuClock[0]); +} + +void MPU_GetHardwareInfo(MPU_Type *base, mpu_hardware_info_t *hardwareInform) +{ + assert(hardwareInform); + + uint32_t cesReg = base->CESR; + + hardwareInform->hardwareRevisionLevel = (cesReg & MPU_CESR_HRL_MASK) >> MPU_CESR_HRL_SHIFT; + hardwareInform->slavePortsNumbers = (cesReg & MPU_CESR_NSP_MASK) >> MPU_CESR_NSP_SHIFT; + hardwareInform->regionsNumbers = (mpu_region_total_num_t)((cesReg & MPU_CESR_NRGD_MASK) >> MPU_CESR_NRGD_SHIFT); +} + +void MPU_SetRegionConfig(MPU_Type *base, const mpu_region_config_t *regionConfig) +{ + assert(regionConfig); + assert(regionConfig->regionNum < FSL_FEATURE_MPU_DESCRIPTOR_COUNT); + + uint32_t wordReg = 0; + uint8_t msPortNum; + uint8_t regNumber = regionConfig->regionNum; + + /* The start and end address of the region descriptor. */ + base->WORD[regNumber][0] = regionConfig->startAddress; + base->WORD[regNumber][1] = regionConfig->endAddress; + + /* Set the privilege rights for master 0 ~ master 3. */ + for (msPortNum = 0; msPortNum <= FSL_FEATURE_MPU_PRIVILEGED_RIGHTS_MASTER_MAX_INDEX; msPortNum++) + { + wordReg |= MPU_REGION_RWXRIGHTS_MASTER( + msPortNum, (((uint32_t)regionConfig->accessRights1[msPortNum].superAccessRights << 3U) | + (uint32_t)regionConfig->accessRights1[msPortNum].userAccessRights)); + +#if FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER + wordReg |= + MPU_REGION_RWXRIGHTS_MASTER_PE(msPortNum, regionConfig->accessRights1[msPortNum].processIdentifierEnable); +#endif /* FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER */ + } + + /* Set the normal read write rights for master 4 ~ master 7. */ + for (msPortNum = FSL_FEATURE_MPU_PRIVILEGED_RIGHTS_MASTER_COUNT; msPortNum < FSL_FEATURE_MPU_MASTER_COUNT; + msPortNum++) + { + wordReg |= MPU_REGION_RWRIGHTS_MASTER(msPortNum, + ((uint32_t)regionConfig->accessRights2[msPortNum - FSL_FEATURE_MPU_PRIVILEGED_RIGHTS_MASTER_COUNT].readEnable << 1U | + (uint32_t)regionConfig->accessRights2[msPortNum - FSL_FEATURE_MPU_PRIVILEGED_RIGHTS_MASTER_COUNT].writeEnable)); + } + + /* Set region descriptor access rights. */ + base->WORD[regNumber][2] = wordReg; + + wordReg = MPU_WORD_VLD(1); +#if FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER + wordReg |= MPU_WORD_PID(regionConfig->processIdentifier) | MPU_WORD_PIDMASK(regionConfig->processIdMask); +#endif /* FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER */ + + base->WORD[regNumber][3] = wordReg; +} + +void MPU_SetRegionAddr(MPU_Type *base, uint32_t regionNum, uint32_t startAddr, uint32_t endAddr) +{ + assert(regionNum < FSL_FEATURE_MPU_DESCRIPTOR_COUNT); + + base->WORD[regionNum][0] = startAddr; + base->WORD[regionNum][1] = endAddr; +} + +void MPU_SetRegionRwxMasterAccessRights(MPU_Type *base, + uint32_t regionNum, + uint32_t masterNum, + const mpu_rwxrights_master_access_control_t *accessRights) +{ + assert(accessRights); + assert(regionNum < FSL_FEATURE_MPU_DESCRIPTOR_COUNT); + assert(masterNum <= FSL_FEATURE_MPU_PRIVILEGED_RIGHTS_MASTER_MAX_INDEX); + + uint32_t mask = MPU_REGION_RWXRIGHTS_MASTER_MASK(masterNum); + uint32_t right = base->RGDAAC[regionNum]; + +#if FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER + mask |= MPU_REGION_RWXRIGHTS_MASTER_PE_MASK(masterNum); +#endif + + /* Build rights control value. */ + right &= ~mask; + right |= MPU_REGION_RWXRIGHTS_MASTER( + masterNum, ((uint32_t)(accessRights->superAccessRights << 3U) | accessRights->userAccessRights)); +#if FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER + right |= MPU_REGION_RWXRIGHTS_MASTER_PE(masterNum, accessRights->processIdentifierEnable); +#endif /* FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER */ + + /* Set low master region access rights. */ + base->RGDAAC[regionNum] = right; +} + +void MPU_SetRegionRwMasterAccessRights(MPU_Type *base, + uint32_t regionNum, + uint32_t masterNum, + const mpu_rwrights_master_access_control_t *accessRights) +{ + assert(accessRights); + assert(regionNum < FSL_FEATURE_MPU_DESCRIPTOR_COUNT); + assert(masterNum > FSL_FEATURE_MPU_PRIVILEGED_RIGHTS_MASTER_MAX_INDEX); + assert(masterNum <= FSL_FEATURE_MPU_MASTER_MAX_INDEX); + + uint32_t mask = MPU_REGION_RWRIGHTS_MASTER_MASK(masterNum); + uint32_t right = base->RGDAAC[regionNum]; + + /* Build rights control value. */ + right &= ~mask; + right |= + MPU_REGION_RWRIGHTS_MASTER(masterNum, (((uint32_t)accessRights->readEnable << 1U) | accessRights->writeEnable)); + /* Set low master region access rights. */ + base->RGDAAC[regionNum] = right; +} + +bool MPU_GetSlavePortErrorStatus(MPU_Type *base, mpu_slave_t slaveNum) +{ + uint8_t sperr; + + sperr = ((base->CESR & MPU_CESR_SPERR_MASK) >> MPU_CESR_SPERR_SHIFT) & (0x1U << slaveNum); + + return (sperr != 0) ? true : false; +} + +void MPU_GetDetailErrorAccessInfo(MPU_Type *base, mpu_slave_t slaveNum, mpu_access_err_info_t *errInform) +{ + assert(errInform); + + uint16_t value; + uint32_t cesReg; + + /* Error address. */ + errInform->address = base->SP[slaveNum].EAR; + + /* Error detail information. */ + value = (base->SP[slaveNum].EDR & MPU_EDR_EACD_MASK) >> MPU_EDR_EACD_SHIFT; + if (!value) + { + errInform->accessControl = kMPU_NoRegionHit; + } + else if (!(value & (uint16_t)(value - 1))) + { + errInform->accessControl = kMPU_NoneOverlappRegion; + } + else + { + errInform->accessControl = kMPU_OverlappRegion; + } + + value = base->SP[slaveNum].EDR; + errInform->master = (uint32_t)((value & MPU_EDR_EMN_MASK) >> MPU_EDR_EMN_SHIFT); + errInform->attributes = (mpu_err_attributes_t)((value & MPU_EDR_EATTR_MASK) >> MPU_EDR_EATTR_SHIFT); + errInform->accessType = (mpu_err_access_type_t)((value & MPU_EDR_ERW_MASK) >> MPU_EDR_ERW_SHIFT); +#if FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER + errInform->processorIdentification = (uint8_t)((value & MPU_EDR_EPID_MASK) >> MPU_EDR_EPID_SHIFT); +#endif + + /* Clears error slave port bit. */ + cesReg = (base->CESR & ~MPU_CESR_SPERR_MASK) | ((0x1U << slaveNum) << MPU_CESR_SPERR_SHIFT); + base->CESR = cesReg; +} diff --git a/drivers/fsl_mpu.h b/drivers/fsl_mpu.h new file mode 100644 index 0000000..d39d78a --- /dev/null +++ b/drivers/fsl_mpu.h @@ -0,0 +1,422 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_MPU_H_ +#define _FSL_MPU_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup mpu + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief MPU driver version 2.1.0. */ +#define FSL_MPU_DRIVER_VERSION (MAKE_VERSION(2, 1, 0)) +/*@}*/ + +/*! @brief MPU the bit shift for masters with privilege rights: read write and execute. */ +#define MPU_REGION_RWXRIGHTS_MASTER_SHIFT(n) (n * 6) + +/*! @brief MPU masters with read, write and execute rights bit mask. */ +#define MPU_REGION_RWXRIGHTS_MASTER_MASK(n) (0x1Fu << MPU_REGION_RWXRIGHTS_MASTER_SHIFT(n)) + +/*! @brief MPU masters with read, write and execute rights bit width. */ +#define MPU_REGION_RWXRIGHTS_MASTER_WIDTH 5 + +/*! @brief MPU masters with read, write and execute rights priority setting. */ +#define MPU_REGION_RWXRIGHTS_MASTER(n, x) \ + (((uint32_t)(((uint32_t)(x)) << MPU_REGION_RWXRIGHTS_MASTER_SHIFT(n))) & MPU_REGION_RWXRIGHTS_MASTER_MASK(n)) + +/*! @brief MPU masters with read, write and execute rights process enable bit shift. */ +#define MPU_REGION_RWXRIGHTS_MASTER_PE_SHIFT(n) (n * 6 + MPU_REGION_RWXRIGHTS_MASTER_WIDTH) + +/*! @brief MPU masters with read, write and execute rights process enable bit mask. */ +#define MPU_REGION_RWXRIGHTS_MASTER_PE_MASK(n) (0x1u << MPU_REGION_RWXRIGHTS_MASTER_PE_SHIFT(n)) + +/*! @brief MPU masters with read, write and execute rights process enable setting. */ +#define MPU_REGION_RWXRIGHTS_MASTER_PE(n, x) \ + (((uint32_t)(((uint32_t)(x)) << MPU_REGION_RWXRIGHTS_MASTER_PE_SHIFT(n))) & MPU_REGION_RWXRIGHTS_MASTER_PE_MASK(n)) + +/*! @brief MPU masters with normal read write permission bit shift. */ +#define MPU_REGION_RWRIGHTS_MASTER_SHIFT(n) ((n - FSL_FEATURE_MPU_PRIVILEGED_RIGHTS_MASTER_COUNT) * 2 + 24) + +/*! @brief MPU masters with normal read write rights bit mask. */ +#define MPU_REGION_RWRIGHTS_MASTER_MASK(n) (0x3u << MPU_REGION_RWRIGHTS_MASTER_SHIFT(n)) + +/*! @brief MPU masters with normal read write rights priority setting. */ +#define MPU_REGION_RWRIGHTS_MASTER(n, x) \ + (((uint32_t)(((uint32_t)(x)) << MPU_REGION_RWRIGHTS_MASTER_SHIFT(n))) & MPU_REGION_RWRIGHTS_MASTER_MASK(n)) + +/*! @brief Describes the number of MPU regions. */ +typedef enum _mpu_region_total_num +{ + kMPU_8Regions = 0x0U, /*!< MPU supports 8 regions. */ + kMPU_12Regions = 0x1U, /*!< MPU supports 12 regions. */ + kMPU_16Regions = 0x2U /*!< MPU supports 16 regions. */ +} mpu_region_total_num_t; + +/*! @brief MPU slave port number. */ +typedef enum _mpu_slave +{ + kMPU_Slave0 = 4U, /*!< MPU slave port 0. */ + kMPU_Slave1 = 3U, /*!< MPU slave port 1. */ + kMPU_Slave2 = 2U, /*!< MPU slave port 2. */ + kMPU_Slave3 = 1U, /*!< MPU slave port 3. */ + kMPU_Slave4 = 0U /*!< MPU slave port 4. */ +} mpu_slave_t; + +/*! @brief MPU error access control detail. */ +typedef enum _mpu_err_access_control +{ + kMPU_NoRegionHit = 0U, /*!< No region hit error. */ + kMPU_NoneOverlappRegion = 1U, /*!< Access single region error. */ + kMPU_OverlappRegion = 2U /*!< Access overlapping region error. */ +} mpu_err_access_control_t; + +/*! @brief MPU error access type. */ +typedef enum _mpu_err_access_type +{ + kMPU_ErrTypeRead = 0U, /*!< MPU error access type --- read. */ + kMPU_ErrTypeWrite = 1U /*!< MPU error access type --- write. */ +} mpu_err_access_type_t; + +/*! @brief MPU access error attributes.*/ +typedef enum _mpu_err_attributes +{ + kMPU_InstructionAccessInUserMode = 0U, /*!< Access instruction error in user mode. */ + kMPU_DataAccessInUserMode = 1U, /*!< Access data error in user mode. */ + kMPU_InstructionAccessInSupervisorMode = 2U, /*!< Access instruction error in supervisor mode. */ + kMPU_DataAccessInSupervisorMode = 3U /*!< Access data error in supervisor mode. */ +} mpu_err_attributes_t; + +/*! @brief MPU access rights in supervisor mode for bus master 0 ~ 3. */ +typedef enum _mpu_supervisor_access_rights +{ + kMPU_SupervisorReadWriteExecute = 0U, /*!< Read write and execute operations are allowed in supervisor mode. */ + kMPU_SupervisorReadExecute = 1U, /*!< Read and execute operations are allowed in supervisor mode. */ + kMPU_SupervisorReadWrite = 2U, /*!< Read write operations are allowed in supervisor mode. */ + kMPU_SupervisorEqualToUsermode = 3U /*!< Access permission equal to user mode. */ +} mpu_supervisor_access_rights_t; + +/*! @brief MPU access rights in user mode for bus master 0 ~ 3. */ +typedef enum _mpu_user_access_rights +{ + kMPU_UserNoAccessRights = 0U, /*!< No access allowed in user mode. */ + kMPU_UserExecute = 1U, /*!< Execute operation is allowed in user mode. */ + kMPU_UserWrite = 2U, /*!< Write operation is allowed in user mode. */ + kMPU_UserWriteExecute = 3U, /*!< Write and execute operations are allowed in user mode. */ + kMPU_UserRead = 4U, /*!< Read is allowed in user mode. */ + kMPU_UserReadExecute = 5U, /*!< Read and execute operations are allowed in user mode. */ + kMPU_UserReadWrite = 6U, /*!< Read and write operations are allowed in user mode. */ + kMPU_UserReadWriteExecute = 7U /*!< Read write and execute operations are allowed in user mode. */ +} mpu_user_access_rights_t; + +/*! @brief MPU hardware basic information. */ +typedef struct _mpu_hardware_info +{ + uint8_t hardwareRevisionLevel; /*!< Specifies the MPU's hardware and definition reversion level. */ + uint8_t slavePortsNumbers; /*!< Specifies the number of slave ports connected to MPU. */ + mpu_region_total_num_t regionsNumbers; /*!< Indicates the number of region descriptors implemented. */ +} mpu_hardware_info_t; + +/*! @brief MPU detail error access information. */ +typedef struct _mpu_access_err_info +{ + uint32_t master; /*!< Access error master. */ + mpu_err_attributes_t attributes; /*!< Access error attributes. */ + mpu_err_access_type_t accessType; /*!< Access error type. */ + mpu_err_access_control_t accessControl; /*!< Access error control. */ + uint32_t address; /*!< Access error address. */ +#if FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER + uint8_t processorIdentification; /*!< Access error processor identification. */ +#endif /* FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER */ +} mpu_access_err_info_t; + +/*! @brief MPU read/write/execute rights control for bus master 0 ~ 3. */ +typedef struct _mpu_rwxrights_master_access_control +{ + mpu_supervisor_access_rights_t superAccessRights; /*!< Master access rights in supervisor mode. */ + mpu_user_access_rights_t userAccessRights; /*!< Master access rights in user mode. */ +#if FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER + bool processIdentifierEnable; /*!< Enables or disables process identifier. */ +#endif /* FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER */ +} mpu_rwxrights_master_access_control_t; + +/*! @brief MPU read/write access control for bus master 4 ~ 7. */ +typedef struct _mpu_rwrights_master_access_control +{ + bool writeEnable; /*!< Enables or disables write permission. */ + bool readEnable; /*!< Enables or disables read permission. */ +} mpu_rwrights_master_access_control_t; + +/*! + * @brief MPU region configuration structure. + * + * This structure is used to configure the regionNum region. + * The accessRights1[0] ~ accessRights1[3] are used to configure the bus master + * 0 ~ 3 with the privilege rights setting. The accessRights2[0] ~ accessRights2[3] + * are used to configure the high master 4 ~ 7 with the normal read write permission. + * The master port assignment is the chip configuration. Normally, the core is the + * master 0, debugger is the master 1. + * Note: MPU assigns a priority scheme where the debugger is treated as the highest + * priority master followed by the core and then all the remaining masters. + * MPU protection does not allow writes from the core to affect the "regionNum 0" start + * and end address nor the permissions associated with the debugger. It can only write + * the permission fields associated with the other masters. This protection guarantee + * the debugger always has access to the entire address space and those rights can't + * be changed by the core or any other bus master. Prepare + * the region configuration when regionNum is 0. + */ +typedef struct _mpu_region_config +{ + uint32_t regionNum; /*!< MPU region number, range form 0 ~ FSL_FEATURE_MPU_DESCRIPTOR_COUNT - 1. */ + uint32_t startAddress; /*!< Memory region start address. Note: bit0 ~ bit4 always be marked as 0 by MPU. The actual + start address is 0-modulo-32 byte address. */ + uint32_t endAddress; /*!< Memory region end address. Note: bit0 ~ bit4 always be marked as 1 by MPU. The actual end + address is 31-modulo-32 byte address. */ + mpu_rwxrights_master_access_control_t accessRights1[4]; /*!< Masters with read, write and execute rights setting. */ + mpu_rwrights_master_access_control_t accessRights2[4]; /*!< Masters with normal read write rights setting. */ +#if FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER + uint8_t processIdentifier; /*!< Process identifier used when "processIdentifierEnable" set with true. */ + uint8_t + processIdMask; /*!< Process identifier mask. The setting bit will ignore the same bit in process identifier. */ +#endif /* FSL_FEATURE_MPU_HAS_PROCESS_IDENTIFIER */ +} mpu_region_config_t; + +/*! + * @brief The configuration structure for the MPU initialization. + * + * This structure is used when calling the MPU_Init function. + */ +typedef struct _mpu_config +{ + mpu_region_config_t regionConfig; /*!< region access permission. */ + struct _mpu_config *next; /*!< pointer to the next structure. */ +} mpu_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /* _cplusplus */ + +/*! + * @name Initialization and deinitialization + * @{ + */ + +/*! + * @brief Initializes the MPU with the user configuration structure. + * + * This function configures the MPU module with the user-defined configuration. + * + * @param base MPU peripheral base address. + * @param config The pointer to the configuration structure. + */ +void MPU_Init(MPU_Type *base, const mpu_config_t *config); + +/*! + * @brief Deinitializes the MPU regions. + * + * @param base MPU peripheral base address. + */ +void MPU_Deinit(MPU_Type *base); + +/* @}*/ + +/*! + * @name Basic Control Operations + * @{ + */ + +/*! + * @brief Enables/disables the MPU globally. + * + * Call this API to enable or disable the MPU module. + * + * @param base MPU peripheral base address. + * @param enable True enable MPU, false disable MPU. + */ +static inline void MPU_Enable(MPU_Type *base, bool enable) +{ + if (enable) + { + /* Enable the MPU globally. */ + base->CESR |= MPU_CESR_VLD_MASK; + } + else + { /* Disable the MPU globally. */ + base->CESR &= ~MPU_CESR_VLD_MASK; + } +} + +/*! + * @brief Enables/disables the MPU for a special region. + * + * When MPU is enabled, call this API to disable an unused region + * of an enabled MPU. Call this API to minimize the power dissipation. + * + * @param base MPU peripheral base address. + * @param number MPU region number. + * @param enable True enable the special region MPU, false disable the special region MPU. + */ +static inline void MPU_RegionEnable(MPU_Type *base, uint32_t number, bool enable) +{ + if (enable) + { + /* Enable the #number region MPU. */ + base->WORD[number][3] |= MPU_WORD_VLD_MASK; + } + else + { /* Disable the #number region MPU. */ + base->WORD[number][3] &= ~MPU_WORD_VLD_MASK; + } +} + +/*! + * @brief Gets the MPU basic hardware information. + * + * @param base MPU peripheral base address. + * @param hardwareInform The pointer to the MPU hardware information structure. See "mpu_hardware_info_t". + */ +void MPU_GetHardwareInfo(MPU_Type *base, mpu_hardware_info_t *hardwareInform); + +/*! + * @brief Sets the MPU region. + * + * Note: Due to the MPU protection, the Region number 0 does not allow writes from + * core to affect the start and end address nor the permissions associated with + * the debugger. It can only write the permission fields associated + * with the other masters. + * + * @param base MPU peripheral base address. + * @param regionConfig The pointer to the MPU user configuration structure. See "mpu_region_config_t". + */ +void MPU_SetRegionConfig(MPU_Type *base, const mpu_region_config_t *regionConfig); + +/*! + * @brief Sets the region start and end address. + * + * Memory region start address. Note: bit0 ~ bit4 is always marked as 0 by MPU. + * The actual start address by MPU is 0-modulo-32 byte address. + * Memory region end address. Note: bit0 ~ bit4 always be marked as 1 by MPU. + * The actual end address used by MPU is 31-modulo-32 byte address. + * Note: Due to the MPU protection, the startAddr and endAddr can't be + * changed by the core when regionNum is 0. + * + * @param base MPU peripheral base address. + * @param regionNum MPU region number. The range is from 0 to + * FSL_FEATURE_MPU_DESCRIPTOR_COUNT - 1. + * @param startAddr Region start address. + * @param endAddr Region end address. + */ +void MPU_SetRegionAddr(MPU_Type *base, uint32_t regionNum, uint32_t startAddr, uint32_t endAddr); + +/*! + * @brief Sets the MPU region access rights for masters with read, write and execute rights. + * The MPU access rights depend on two board classifications of bus masters. + * The privilege rights masters and the normal rights masters. + * The privilege rights masters have the read, write and execute access rights. + * So except the normal read and write rights, the execute rights is also + * allowed for these masters. The privilege rights masters are normally range from + * bus masters 0 - 3. However, the maximum master number is device-specific. + * See the "FSL_FEATURE_MPU_PRIVILEGED_RIGHTS_MASTER_MAX_INDEX". + * The normal rights masters access rights control see + * "MPU_SetRegionRwMasterAccessRights()". + * + * @param base MPU peripheral base address. + * @param regionNum MPU region number. Should range from 0 to + * FSL_FEATURE_MPU_DESCRIPTOR_COUNT - 1. + * @param masterNum MPU bus master number. Should range from 0 to + * FSL_FEATURE_MPU_PRIVILEGED_RIGHTS_MASTER_MAX_INDEX. + * @param accessRights The pointer to the MPU access rights configuration. See "mpu_rwxrights_master_access_control_t". + */ +void MPU_SetRegionRwxMasterAccessRights(MPU_Type *base, + uint32_t regionNum, + uint32_t masterNum, + const mpu_rwxrights_master_access_control_t *accessRights); + +/*! + * @brief Sets the MPU region access rights for masters with read and write rights. + * The MPU access rights depend on two board classifications of bus masters. + * The privilege rights masters and the normal rights masters. + * The normal rights masters only have the read and write access permissions. + * The privilege rights access control see "MPU_SetRegionRwxMasterAccessRights". + * + * @param base MPU peripheral base address. + * @param regionNum MPU region number. The range is from 0 to + * FSL_FEATURE_MPU_DESCRIPTOR_COUNT - 1. + * @param masterNum MPU bus master number. Should range from FSL_FEATURE_MPU_PRIVILEGED_RIGHTS_MASTER_COUNT + * to ~ FSL_FEATURE_MPU_MASTER_MAX_INDEX. + * @param accessRights The pointer to the MPU access rights configuration. See "mpu_rwrights_master_access_control_t". + */ +void MPU_SetRegionRwMasterAccessRights(MPU_Type *base, + uint32_t regionNum, + uint32_t masterNum, + const mpu_rwrights_master_access_control_t *accessRights); + +/*! + * @brief Gets the numbers of slave ports where errors occur. + * + * @param base MPU peripheral base address. + * @param slaveNum MPU slave port number. + * @return The slave ports error status. + * true - error happens in this slave port. + * false - error didn't happen in this slave port. + */ +bool MPU_GetSlavePortErrorStatus(MPU_Type *base, mpu_slave_t slaveNum); + +/*! + * @brief Gets the MPU detailed error access information. + * + * @param base MPU peripheral base address. + * @param slaveNum MPU slave port number. + * @param errInform The pointer to the MPU access error information. See "mpu_access_err_info_t". + */ +void MPU_GetDetailErrorAccessInfo(MPU_Type *base, mpu_slave_t slaveNum, mpu_access_err_info_t *errInform); + +/* @} */ + +#if defined(__cplusplus) +} +#endif + +/*! @}*/ + +#endif /* _FSL_MPU_H_ */ diff --git a/drivers/fsl_pdb.c b/drivers/fsl_pdb.c new file mode 100644 index 0000000..dcc03ba --- /dev/null +++ b/drivers/fsl_pdb.c @@ -0,0 +1,135 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_pdb.h" + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Get instance number for PDB module. + * + * @param base PDB peripheral base address + */ +static uint32_t PDB_GetInstance(PDB_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/*! @brief Pointers to PDB bases for each instance. */ +static PDB_Type *const s_pdbBases[] = PDB_BASE_PTRS; +/*! @brief Pointers to PDB clocks for each instance. */ +static const clock_ip_name_t s_pdbClocks[] = PDB_CLOCKS; + +/******************************************************************************* + * Codes + ******************************************************************************/ +static uint32_t PDB_GetInstance(PDB_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_PDB_COUNT; instance++) + { + if (s_pdbBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_PDB_COUNT); + + return instance; +} + +void PDB_Init(PDB_Type *base, const pdb_config_t *config) +{ + assert(NULL != config); + + uint32_t tmp32; + + /* Enable the clock. */ + CLOCK_EnableClock(s_pdbClocks[PDB_GetInstance(base)]); + + /* Configure. */ + /* PDBx_SC. */ + tmp32 = base->SC & + ~(PDB_SC_LDMOD_MASK | PDB_SC_PRESCALER_MASK | PDB_SC_TRGSEL_MASK | PDB_SC_MULT_MASK | PDB_SC_CONT_MASK); + + tmp32 |= PDB_SC_LDMOD(config->loadValueMode) | PDB_SC_PRESCALER(config->prescalerDivider) | + PDB_SC_TRGSEL(config->triggerInputSource) | PDB_SC_MULT(config->dividerMultiplicationFactor); + if (config->enableContinuousMode) + { + tmp32 |= PDB_SC_CONT_MASK; + } + base->SC = tmp32; + + PDB_Enable(base, true); /* Enable the PDB module. */ +} + +void PDB_Deinit(PDB_Type *base) +{ + PDB_Enable(base, false); /* Disable the PDB module. */ + + /* Disable the clock. */ + CLOCK_DisableClock(s_pdbClocks[PDB_GetInstance(base)]); +} + +void PDB_GetDefaultConfig(pdb_config_t *config) +{ + assert(NULL != config); + + config->loadValueMode = kPDB_LoadValueImmediately; + config->prescalerDivider = kPDB_PrescalerDivider1; + config->dividerMultiplicationFactor = kPDB_DividerMultiplicationFactor1; + config->triggerInputSource = kPDB_TriggerSoftware; + config->enableContinuousMode = false; +} + +#if defined(FSL_FEATURE_PDB_HAS_DAC) && FSL_FEATURE_PDB_HAS_DAC +void PDB_SetDACTriggerConfig(PDB_Type *base, uint32_t channel, pdb_dac_trigger_config_t *config) +{ + assert(channel < PDB_INTC_COUNT); + assert(NULL != config); + + uint32_t tmp32 = 0U; + + /* PDBx_DACINTC. */ + if (config->enableExternalTriggerInput) + { + tmp32 |= PDB_INTC_EXT_MASK; + } + if (config->enableIntervalTrigger) + { + tmp32 |= PDB_INTC_TOE_MASK; + } + base->DAC[channel].INTC = tmp32; +} +#endif /* FSL_FEATURE_PDB_HAS_DAC */ diff --git a/drivers/fsl_pdb.h b/drivers/fsl_pdb.h new file mode 100644 index 0000000..5fed10a --- /dev/null +++ b/drivers/fsl_pdb.h @@ -0,0 +1,575 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_PDB_H_ +#define _FSL_PDB_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup pdb + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief PDB driver version 2.0.1. */ +#define FSL_PDB_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) +/*@}*/ + +/*! + * @brief PDB flags. + */ +enum _pdb_status_flags +{ + kPDB_LoadOKFlag = PDB_SC_LDOK_MASK, /*!< This flag is automatically cleared when the values in buffers are + loaded into the internal registers after the LDOK bit is set or the + PDBEN is cleared. */ + kPDB_DelayEventFlag = PDB_SC_PDBIF_MASK, /*!< PDB timer delay event flag. */ +}; + +/*! + * @brief PDB ADC PreTrigger channel flags. + */ +enum _pdb_adc_pretrigger_flags +{ + /* PDB PreTrigger channel match flags. */ + kPDB_ADCPreTriggerChannel0Flag = PDB_S_CF(1U << 0), /*!< Pre-Trigger 0 flag. */ + kPDB_ADCPreTriggerChannel1Flag = PDB_S_CF(1U << 1), /*!< Pre-Trigger 1 flag. */ +#if (PDB_DLY_COUNT > 2) + kPDB_ADCPreTriggerChannel2Flag = PDB_S_CF(1U << 2), /*!< Pre-Trigger 2 flag. */ + kPDB_ADCPreTriggerChannel3Flag = PDB_S_CF(1U << 3), /*!< Pre-Trigger 3 flag. */ +#endif /* PDB_DLY_COUNT > 2 */ +#if (PDB_DLY_COUNT > 4) + kPDB_ADCPreTriggerChannel4Flag = PDB_S_CF(1U << 4), /*!< Pre-Trigger 4 flag. */ + kPDB_ADCPreTriggerChannel5Flag = PDB_S_CF(1U << 5), /*!< Pre-Trigger 5 flag. */ + kPDB_ADCPreTriggerChannel6Flag = PDB_S_CF(1U << 6), /*!< Pre-Trigger 6 flag. */ + kPDB_ADCPreTriggerChannel7Flag = PDB_S_CF(1U << 7), /*!< Pre-Trigger 7 flag. */ +#endif /* PDB_DLY_COUNT > 4 */ + + /* PDB PreTrigger channel error flags. */ + kPDB_ADCPreTriggerChannel0ErrorFlag = PDB_S_ERR(1U << 0), /*!< Pre-Trigger 0 Error. */ + kPDB_ADCPreTriggerChannel1ErrorFlag = PDB_S_ERR(1U << 1), /*!< Pre-Trigger 1 Error. */ +#if (PDB_DLY_COUNT > 2) + kPDB_ADCPreTriggerChannel2ErrorFlag = PDB_S_ERR(1U << 2), /*!< Pre-Trigger 2 Error. */ + kPDB_ADCPreTriggerChannel3ErrorFlag = PDB_S_ERR(1U << 3), /*!< Pre-Trigger 3 Error. */ +#endif /* PDB_DLY_COUNT > 2 */ +#if (PDB_DLY_COUNT > 4) + kPDB_ADCPreTriggerChannel4ErrorFlag = PDB_S_ERR(1U << 4), /*!< Pre-Trigger 4 Error. */ + kPDB_ADCPreTriggerChannel5ErrorFlag = PDB_S_ERR(1U << 5), /*!< Pre-Trigger 5 Error. */ + kPDB_ADCPreTriggerChannel6ErrorFlag = PDB_S_ERR(1U << 6), /*!< Pre-Trigger 6 Error. */ + kPDB_ADCPreTriggerChannel7ErrorFlag = PDB_S_ERR(1U << 7), /*!< Pre-Trigger 7 Error. */ +#endif /* PDB_DLY_COUNT > 4 */ +}; + +/*! + * @brief PDB buffer interrupts. + */ +enum _pdb_interrupt_enable +{ + kPDB_SequenceErrorInterruptEnable = PDB_SC_PDBEIE_MASK, /*!< PDB sequence error interrupt enable. */ + kPDB_DelayInterruptEnable = PDB_SC_PDBIE_MASK, /*!< PDB delay interrupt enable. */ +}; + +/*! + * @brief PDB load value mode. + * + * Selects the mode to load the internal values after doing the load operation (write 1 to PDBx_SC[LDOK]). + * These values are for: + * - PDB counter (PDBx_MOD, PDBx_IDLY) + * - ADC trigger (PDBx_CHnDLYm) + * - DAC trigger (PDBx_DACINTx) + * - CMP trigger (PDBx_POyDLY) + */ +typedef enum _pdb_load_value_mode +{ + kPDB_LoadValueImmediately = 0U, /*!< Load immediately after 1 is written to LDOK. */ + kPDB_LoadValueOnCounterOverflow = 1U, /*!< Load when the PDB counter overflows (reaches the MOD + register value). */ + kPDB_LoadValueOnTriggerInput = 2U, /*!< Load a trigger input event is detected. */ + kPDB_LoadValueOnCounterOverflowOrTriggerInput = 3U, /*!< Load either when the PDB counter overflows or a trigger + input is detected. */ +} pdb_load_value_mode_t; + +/*! + * @brief Prescaler divider. + * + * Counting uses the peripheral clock divided by multiplication factor selected by times of MULT. + */ +typedef enum _pdb_prescaler_divider +{ + kPDB_PrescalerDivider1 = 0U, /*!< Divider x1. */ + kPDB_PrescalerDivider2 = 1U, /*!< Divider x2. */ + kPDB_PrescalerDivider4 = 2U, /*!< Divider x4. */ + kPDB_PrescalerDivider8 = 3U, /*!< Divider x8. */ + kPDB_PrescalerDivider16 = 4U, /*!< Divider x16. */ + kPDB_PrescalerDivider32 = 5U, /*!< Divider x32. */ + kPDB_PrescalerDivider64 = 6U, /*!< Divider x64. */ + kPDB_PrescalerDivider128 = 7U, /*!< Divider x128. */ +} pdb_prescaler_divider_t; + +/*! + * @brief Multiplication factor select for prescaler. + * + * Selects the multiplication factor of the prescaler divider for the counter clock. + */ +typedef enum _pdb_divider_multiplication_factor +{ + kPDB_DividerMultiplicationFactor1 = 0U, /*!< Multiplication factor is 1. */ + kPDB_DividerMultiplicationFactor10 = 1U, /*!< Multiplication factor is 10. */ + kPDB_DividerMultiplicationFactor20 = 2U, /*!< Multiplication factor is 20. */ + kPDB_DividerMultiplicationFactor40 = 3U, /*!< Multiplication factor is 40. */ +} pdb_divider_multiplication_factor_t; + +/*! + * @brief Trigger input source + * + * Selects the trigger input source for the PDB. The trigger input source can be internal or external (EXTRG pin), or + * the software trigger. See chip configuration details for the actual PDB input trigger connections. + */ +typedef enum _pdb_trigger_input_source +{ + kPDB_TriggerInput0 = 0U, /*!< Trigger-In 0. */ + kPDB_TriggerInput1 = 1U, /*!< Trigger-In 1. */ + kPDB_TriggerInput2 = 2U, /*!< Trigger-In 2. */ + kPDB_TriggerInput3 = 3U, /*!< Trigger-In 3. */ + kPDB_TriggerInput4 = 4U, /*!< Trigger-In 4. */ + kPDB_TriggerInput5 = 5U, /*!< Trigger-In 5. */ + kPDB_TriggerInput6 = 6U, /*!< Trigger-In 6. */ + kPDB_TriggerInput7 = 7U, /*!< Trigger-In 7. */ + kPDB_TriggerInput8 = 8U, /*!< Trigger-In 8. */ + kPDB_TriggerInput9 = 9U, /*!< Trigger-In 9. */ + kPDB_TriggerInput10 = 10U, /*!< Trigger-In 10. */ + kPDB_TriggerInput11 = 11U, /*!< Trigger-In 11. */ + kPDB_TriggerInput12 = 12U, /*!< Trigger-In 12. */ + kPDB_TriggerInput13 = 13U, /*!< Trigger-In 13. */ + kPDB_TriggerInput14 = 14U, /*!< Trigger-In 14. */ + kPDB_TriggerSoftware = 15U, /*!< Trigger-In 15, software trigger. */ +} pdb_trigger_input_source_t; + +/*! + * @brief PDB module configuration. + */ +typedef struct _pdb_config +{ + pdb_load_value_mode_t loadValueMode; /*!< Select the load value mode. */ + pdb_prescaler_divider_t prescalerDivider; /*!< Select the prescaler divider. */ + pdb_divider_multiplication_factor_t dividerMultiplicationFactor; /*!< Multiplication factor select for prescaler. */ + pdb_trigger_input_source_t triggerInputSource; /*!< Select the trigger input source. */ + bool enableContinuousMode; /*!< Enable the PDB operation in Continuous mode.*/ +} pdb_config_t; + +/*! + * @brief PDB ADC Pre-Trigger configuration. + */ +typedef struct _pdb_adc_pretrigger_config +{ + uint32_t enablePreTriggerMask; /*!< PDB Channel Pre-Trigger Enable. */ + uint32_t enableOutputMask; /*!< PDB Channel Pre-Trigger Output Select. + PDB channel's corresponding pre-trigger asserts when the counter + reaches the channel delay register. */ + uint32_t enableBackToBackOperationMask; /*!< PDB Channel Pre-Trigger Back-to-Back Operation Enable. + Back-to-back operation enables the ADC conversions complete to trigger + the next PDB channel pre-trigger and trigger output, so that the ADC + conversions can be triggered on next set of configuration and results + registers.*/ +} pdb_adc_pretrigger_config_t; + +/*! + * @brief PDB DAC trigger configuration. + */ +typedef struct _pdb_dac_trigger_config +{ + bool enableExternalTriggerInput; /*!< Enables the external trigger for DAC interval counter. */ + bool enableIntervalTrigger; /*!< Enables the DAC interval trigger. */ +} pdb_dac_trigger_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name Initialization + * @{ + */ + +/*! + * @brief Initializes the PDB module. + * + * This function is to make the initialization for PDB module. The operations includes are: + * - Enable the clock for PDB instance. + * - Configure the PDB module. + * - Enable the PDB module. + * + * @param base PDB peripheral base address. + * @param config Pointer to configuration structure. See "pdb_config_t". + */ +void PDB_Init(PDB_Type *base, const pdb_config_t *config); + +/*! + * @brief De-initializes the PDB module. + * + * @param base PDB peripheral base address. + */ +void PDB_Deinit(PDB_Type *base); + +/*! + * @brief Initializes the PDB user configuration structure. + * + * This function initializes the user configuration structure to default value. The default values are: + * @code + * config->loadValueMode = kPDB_LoadValueImmediately; + * config->prescalerDivider = kPDB_PrescalerDivider1; + * config->dividerMultiplicationFactor = kPDB_DividerMultiplicationFactor1; + * config->triggerInputSource = kPDB_TriggerSoftware; + * config->enableContinuousMode = false; + * @endcode + * @param config Pointer to configuration structure. See "pdb_config_t". + */ +void PDB_GetDefaultConfig(pdb_config_t *config); + +/*! + * @brief Enables the PDB module. + * + * @param base PDB peripheral base address. + * @param enable Enable the module or not. + */ +static inline void PDB_Enable(PDB_Type *base, bool enable) +{ + if (enable) + { + base->SC |= PDB_SC_PDBEN_MASK; + } + else + { + base->SC &= ~PDB_SC_PDBEN_MASK; + } +} + +/* @} */ + +/*! + * @name Basic Counter + * @{ + */ + +/*! + * @brief Triggers the PDB counter by software. + * + * @param base PDB peripheral base address. + */ +static inline void PDB_DoSoftwareTrigger(PDB_Type *base) +{ + base->SC |= PDB_SC_SWTRIG_MASK; +} + +/*! + * @brief Loads the counter values. + * + * This function is to load the counter values from their internal buffer. + * See "pdb_load_value_mode_t" about PDB's load mode. + * + * @param base PDB peripheral base address. + */ +static inline void PDB_DoLoadValues(PDB_Type *base) +{ + base->SC |= PDB_SC_LDOK_MASK; +} + +/*! + * @brief Enables the DMA for the PDB module. + * + * @param base PDB peripheral base address. + * @param enable Enable the feature or not. + */ +static inline void PDB_EnableDMA(PDB_Type *base, bool enable) +{ + if (enable) + { + base->SC |= PDB_SC_DMAEN_MASK; + } + else + { + base->SC &= ~PDB_SC_DMAEN_MASK; + } +} + +/*! + * @brief Enables the interrupts for the PDB module. + * + * @param base PDB peripheral base address. + * @param mask Mask value for interrupts. See "_pdb_interrupt_enable". + */ +static inline void PDB_EnableInterrupts(PDB_Type *base, uint32_t mask) +{ + assert(0U == (mask & ~(PDB_SC_PDBEIE_MASK | PDB_SC_PDBIE_MASK))); + + base->SC |= mask; +} + +/*! + * @brief Disables the interrupts for the PDB module. + * + * @param base PDB peripheral base address. + * @param mask Mask value for interrupts. See "_pdb_interrupt_enable". + */ +static inline void PDB_DisableInterrupts(PDB_Type *base, uint32_t mask) +{ + assert(0U == (mask & ~(PDB_SC_PDBEIE_MASK | PDB_SC_PDBIE_MASK))); + + base->SC &= ~mask; +} + +/*! + * @brief Gets the status flags of the PDB module. + * + * @param base PDB peripheral base address. + * + * @return Mask value for asserted flags. See "_pdb_status_flags". + */ +static inline uint32_t PDB_GetStatusFlags(PDB_Type *base) +{ + return base->SC & (PDB_SC_PDBIF_MASK | PDB_SC_LDOK_MASK); +} + +/*! + * @brief Clears the status flags of the PDB module. + * + * @param base PDB peripheral base address. + * @param mask Mask value of flags. See "_pdb_status_flags". + */ +static inline void PDB_ClearStatusFlags(PDB_Type *base, uint32_t mask) +{ + assert(0U == (mask & ~PDB_SC_PDBIF_MASK)); + + base->SC &= ~mask; +} + +/*! + * @brief Specifies the period of the counter. + * + * @param base PDB peripheral base address. + * @param value Setting value for the modulus. 16-bit is available. + */ +static inline void PDB_SetModulusValue(PDB_Type *base, uint32_t value) +{ + base->MOD = PDB_MOD_MOD(value); +} + +/*! + * @brief Gets the PDB counter's current value. + * + * @param base PDB peripheral base address. + * + * @return PDB counter's current value. + */ +static inline uint32_t PDB_GetCounterValue(PDB_Type *base) +{ + return base->CNT; +} + +/*! + * @brief Sets the value for PDB counter delay event. + * + * @param base PDB peripheral base address. + * @param value Setting value for PDB counter delay event. 16-bit is available. + */ +static inline void PDB_SetCounterDelayValue(PDB_Type *base, uint32_t value) +{ + base->IDLY = PDB_IDLY_IDLY(value); +} +/* @} */ + +/*! + * @name ADC Pre-Trigger + * @{ + */ + +/*! + * @brief Configures the ADC PreTrigger in PDB module. + * + * @param base PDB peripheral base address. + * @param channel Channel index for ADC instance. + * @param config Pointer to configuration structure. See "pdb_adc_pretrigger_config_t". + */ +static inline void PDB_SetADCPreTriggerConfig(PDB_Type *base, uint32_t channel, pdb_adc_pretrigger_config_t *config) +{ + assert(channel < PDB_C1_COUNT); + assert(NULL != config); + + base->CH[channel].C1 = PDB_C1_BB(config->enableBackToBackOperationMask) | PDB_C1_TOS(config->enableOutputMask) | + PDB_C1_EN(config->enablePreTriggerMask); +} + +/*! + * @brief Sets the value for ADC Pre-Trigger delay event. + * + * This function is to set the value for ADC Pre-Trigger delay event. IT Specifies the delay value for the channel's + * corresponding pre-trigger. The pre-trigger asserts when the PDB counter is equal to the setting value here. + * + * @param base PDB peripheral base address. + * @param channel Channel index for ADC instance. + * @param preChannel Channel group index for ADC instance. + * @param value Setting value for ADC Pre-Trigger delay event. 16-bit is available. + */ +static inline void PDB_SetADCPreTriggerDelayValue(PDB_Type *base, uint32_t channel, uint32_t preChannel, uint32_t value) +{ + assert(channel < PDB_C1_COUNT); + assert(preChannel < PDB_DLY_COUNT); + + base->CH[channel].DLY[preChannel] = PDB_DLY_DLY(value); +} + +/*! + * @brief Gets the ADC Pre-Trigger's status flags. + * + * @param base PDB peripheral base address. + * @param channel Channel index for ADC instance. + * + * @return Mask value for asserted flags. See "_pdb_adc_pretrigger_flags". + */ +static inline uint32_t PDB_GetADCPreTriggerStatusFlags(PDB_Type *base, uint32_t channel) +{ + assert(channel < PDB_C1_COUNT); + + return base->CH[channel].S; +} + +/*! + * @brief Clears the ADC Pre-Trigger's status flags. + * + * @param base PDB peripheral base address. + * @param channel Channel index for ADC instance. + * @param mask Mask value for flags. See "_pdb_adc_pretrigger_flags". + */ +static inline void PDB_ClearADCPreTriggerStatusFlags(PDB_Type *base, uint32_t channel, uint32_t mask) +{ + assert(channel < PDB_C1_COUNT); + + base->CH[channel].S &= ~mask; +} + +/* @} */ + +#if defined(FSL_FEATURE_PDB_HAS_DAC) && FSL_FEATURE_PDB_HAS_DAC +/*! + * @name DAC Interval Trigger + * @{ + */ + +/*! + * @brief Configures the DAC trigger in PDB module. + * + * @param base PDB peripheral base address. + * @param channel Channel index for DAC instance. + * @param config Pointer to configuration structure. See "pdb_dac_trigger_config_t". + */ +void PDB_SetDACTriggerConfig(PDB_Type *base, uint32_t channel, pdb_dac_trigger_config_t *config); + +/*! + * @brief Sets the value for the DAC interval event. + * + * This fucntion is to set the value for DAC interval event. DAC interval trigger would trigger the DAC module to update + * buffer when the DAC interval counter is equal to the setting value here. + * + * @param base PDB peripheral base address. + * @param channel Channel index for DAC instance. + * @param value Setting value for the DAC interval event. + */ +static inline void PDB_SetDACTriggerIntervalValue(PDB_Type *base, uint32_t channel, uint32_t value) +{ + assert(channel < PDB_INT_COUNT); + + base->DAC[channel].INT = PDB_INT_INT(value); +} + +/* @} */ +#endif /* FSL_FEATURE_PDB_HAS_DAC */ + +/*! + * @name Pulse-Out Trigger + * @{ + */ + +/*! + * @brief Enables the pulse out trigger channels. + * + * @param base PDB peripheral base address. + * @param channelMask Channel mask value for multiple pulse out trigger channel. + * @param enable Enable the feature or not. + */ +static inline void PDB_EnablePulseOutTrigger(PDB_Type *base, uint32_t channelMask, bool enable) +{ + if (enable) + { + base->POEN |= PDB_POEN_POEN(channelMask); + } + else + { + base->POEN &= ~(PDB_POEN_POEN(channelMask)); + } +} + +/*! + * @brief Sets event values for pulse out trigger. + * + * This function is used to set event values for pulse output trigger. + * These pulse output trigger delay values specify the delay for the PDB Pulse-Out. Pulse-Out goes high when the PDB + * counter is equal to the pulse output high value (value1). Pulse-Out goes low when the PDB counter is equal to the + * pulse output low value (value2). + * + * @param base PDB peripheral base address. + * @param channel Channel index for pulse out trigger channel. + * @param value1 Setting value for pulse out high. + * @param value2 Setting value for pulse out low. + */ +static inline void PDB_SetPulseOutTriggerDelayValue(PDB_Type *base, uint32_t channel, uint32_t value1, uint32_t value2) +{ + assert(channel < PDB_PODLY_COUNT); + + base->PODLY[channel] = PDB_PODLY_DLY1(value1) | PDB_PODLY_DLY2(value2); +} + +/* @} */ +#if defined(__cplusplus) +} +#endif +/*! + * @} + */ +#endif /* _FSL_PDB_H_ */ diff --git a/drivers/fsl_pit.c b/drivers/fsl_pit.c new file mode 100644 index 0000000..1f2fdfe --- /dev/null +++ b/drivers/fsl_pit.c @@ -0,0 +1,119 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_pit.h" + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Gets the instance from the base address to be used to gate or ungate the module clock + * + * @param base PIT peripheral base address + * + * @return The PIT instance + */ +static uint32_t PIT_GetInstance(PIT_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/*! @brief Pointers to PIT bases for each instance. */ +static PIT_Type *const s_pitBases[] = PIT_BASE_PTRS; + +/*! @brief Pointers to PIT clocks for each instance. */ +static const clock_ip_name_t s_pitClocks[] = PIT_CLOCKS; + +/******************************************************************************* + * Code + ******************************************************************************/ +static uint32_t PIT_GetInstance(PIT_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_PIT_COUNT; instance++) + { + if (s_pitBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_PIT_COUNT); + + return instance; +} + +void PIT_Init(PIT_Type *base, const pit_config_t *config) +{ + assert(config); + + /* Ungate the PIT clock*/ + CLOCK_EnableClock(s_pitClocks[PIT_GetInstance(base)]); + + /* Enable PIT timers */ + base->MCR &= ~PIT_MCR_MDIS_MASK; + + /* Config timer operation when in debug mode */ + if (config->enableRunInDebug) + { + base->MCR &= ~PIT_MCR_FRZ_MASK; + } + else + { + base->MCR |= PIT_MCR_FRZ_MASK; + } +} + +void PIT_Deinit(PIT_Type *base) +{ + /* Disable PIT timers */ + base->MCR |= PIT_MCR_MDIS_MASK; + + /* Gate the PIT clock*/ + CLOCK_DisableClock(s_pitClocks[PIT_GetInstance(base)]); +} + +#if defined(FSL_FEATURE_PIT_HAS_LIFETIME_TIMER) && FSL_FEATURE_PIT_HAS_LIFETIME_TIMER + +uint64_t PIT_GetLifetimeTimerCount(PIT_Type *base) +{ + uint32_t valueH = 0U; + uint32_t valueL = 0U; + + /* LTMR64H should be read before LTMR64L */ + valueH = base->LTMR64H; + valueL = base->LTMR64L; + + return (((uint64_t)valueH << 32U) + (uint64_t)(valueL)); +} + +#endif /* FSL_FEATURE_PIT_HAS_LIFETIME_TIMER */ diff --git a/drivers/fsl_pit.h b/drivers/fsl_pit.h new file mode 100644 index 0000000..f94c14a --- /dev/null +++ b/drivers/fsl_pit.h @@ -0,0 +1,354 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_PIT_H_ +#define _FSL_PIT_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup pit + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +#define FSL_PIT_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) /*!< Version 2.0.0 */ +/*@}*/ + +/*! + * @brief List of PIT channels + * @note Actual number of available channels is SoC dependent + */ +typedef enum _pit_chnl +{ + kPIT_Chnl_0 = 0U, /*!< PIT channel number 0*/ + kPIT_Chnl_1, /*!< PIT channel number 1 */ + kPIT_Chnl_2, /*!< PIT channel number 2 */ + kPIT_Chnl_3, /*!< PIT channel number 3 */ +} pit_chnl_t; + +/*! @brief List of PIT interrupts */ +typedef enum _pit_interrupt_enable +{ + kPIT_TimerInterruptEnable = PIT_TCTRL_TIE_MASK, /*!< Timer interrupt enable*/ +} pit_interrupt_enable_t; + +/*! @brief List of PIT status flags */ +typedef enum _pit_status_flags +{ + kPIT_TimerFlag = PIT_TFLG_TIF_MASK, /*!< Timer flag */ +} pit_status_flags_t; + +/*! + * @brief PIT config structure + * + * This structure holds the configuration settings for the PIT peripheral. To initialize this + * structure to reasonable defaults, call the PIT_GetDefaultConfig() function and pass a + * pointer to your config structure instance. + * + * The config struct can be made const so it resides in flash + */ +typedef struct _pit_config +{ + bool enableRunInDebug; /*!< true: Timers run in debug mode; false: Timers stop in debug mode */ +} pit_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name Initialization and deinitialization + * @{ + */ + +/*! + * @brief Ungates the PIT clock, enables the PIT module and configures the peripheral for basic operation. + * + * @note This API should be called at the beginning of the application using the PIT driver. + * + * @param base PIT peripheral base address + * @param config Pointer to user's PIT config structure + */ +void PIT_Init(PIT_Type *base, const pit_config_t *config); + +/*! + * @brief Gate the PIT clock and disable the PIT module + * + * @param base PIT peripheral base address + */ +void PIT_Deinit(PIT_Type *base); + +/*! + * @brief Fill in the PIT config struct with the default settings + * + * The default values are: + * @code + * config->enableRunInDebug = false; + * @endcode + * @param config Pointer to user's PIT config structure. + */ +static inline void PIT_GetDefaultConfig(pit_config_t *config) +{ + assert(config); + + /* Timers are stopped in Debug mode */ + config->enableRunInDebug = false; +} + +#if defined(FSL_FEATURE_PIT_HAS_CHAIN_MODE) && FSL_FEATURE_PIT_HAS_CHAIN_MODE + +/*! + * @brief Enables or disables chaining a timer with the previous timer. + * + * When a timer has a chain mode enabled, it only counts after the previous + * timer has expired. If the timer n-1 has counted down to 0, counter n + * decrements the value by one. Each timer is 32-bits, this allows the developers + * to chain timers together and form a longer timer (64-bits and larger). The first timer + * (timer 0) cannot be chained to any other timer. + * + * @param base PIT peripheral base address + * @param channel Timer channel number which is chained with the previous timer + * @param enable Enable or disable chain. + * true: Current timer is chained with the previous timer. + * false: Timer doesn't chain with other timers. + */ +static inline void PIT_SetTimerChainMode(PIT_Type *base, pit_chnl_t channel, bool enable) +{ + if (enable) + { + base->CHANNEL[channel].TCTRL |= PIT_TCTRL_CHN_MASK; + } + else + { + base->CHANNEL[channel].TCTRL &= ~PIT_TCTRL_CHN_MASK; + } +} + +#endif /* FSL_FEATURE_PIT_HAS_CHAIN_MODE */ + +/*! @}*/ + +/*! + * @name Interrupt Interface + * @{ + */ + +/*! + * @brief Enables the selected PIT interrupts. + * + * @param base PIT peripheral base address + * @param channel Timer channel number + * @param mask The interrupts to enable. This is a logical OR of members of the + * enumeration ::pit_interrupt_enable_t + */ +static inline void PIT_EnableInterrupts(PIT_Type *base, pit_chnl_t channel, uint32_t mask) +{ + base->CHANNEL[channel].TCTRL |= mask; +} + +/*! + * @brief Disables the selected PIT interrupts. + * + * @param base PIT peripheral base address + * @param channel Timer channel number + * @param mask The interrupts to disable. This is a logical OR of members of the + * enumeration ::pit_interrupt_enable_t + */ +static inline void PIT_DisableInterrupts(PIT_Type *base, pit_chnl_t channel, uint32_t mask) +{ + base->CHANNEL[channel].TCTRL &= ~mask; +} + +/*! + * @brief Gets the enabled PIT interrupts. + * + * @param base PIT peripheral base address + * @param channel Timer channel number + * + * @return The enabled interrupts. This is the logical OR of members of the + * enumeration ::pit_interrupt_enable_t + */ +static inline uint32_t PIT_GetEnabledInterrupts(PIT_Type *base, pit_chnl_t channel) +{ + return (base->CHANNEL[channel].TCTRL & PIT_TCTRL_TIE_MASK); +} + +/*! @}*/ + +/*! + * @name Status Interface + * @{ + */ + +/*! + * @brief Gets the PIT status flags + * + * @param base PIT peripheral base address + * @param channel Timer channel number + * + * @return The status flags. This is the logical OR of members of the + * enumeration ::pit_status_flags_t + */ +static inline uint32_t PIT_GetStatusFlags(PIT_Type *base, pit_chnl_t channel) +{ + return (base->CHANNEL[channel].TFLG & PIT_TFLG_TIF_MASK); +} + +/*! + * @brief Clears the PIT status flags. + * + * @param base PIT peripheral base address + * @param channel Timer channel number + * @param mask The status flags to clear. This is a logical OR of members of the + * enumeration ::pit_status_flags_t + */ +static inline void PIT_ClearStatusFlags(PIT_Type *base, pit_chnl_t channel, uint32_t mask) +{ + base->CHANNEL[channel].TFLG = mask; +} + +/*! @}*/ + +/*! + * @name Read and Write the timer period + * @{ + */ + +/*! + * @brief Sets the timer period in units of count. + * + * Timers begin counting from the value set by this function until it reaches 0, + * then it generates an interrupt and load this register value again. + * Writing a new value to this register does not restart the timer. Instead, the value + * is loaded after the timer expires. + * + * @note User can call the utility macros provided in fsl_common.h to convert to ticks + * + * @param base PIT peripheral base address + * @param channel Timer channel number + * @param count Timer period in units of ticks + */ +static inline void PIT_SetTimerPeriod(PIT_Type *base, pit_chnl_t channel, uint32_t count) +{ + base->CHANNEL[channel].LDVAL = count; +} + +/*! + * @brief Reads the current timer counting value. + * + * This function returns the real-time timer counting value, in a range from 0 to a + * timer period. + * + * @note User can call the utility macros provided in fsl_common.h to convert ticks to usec or msec + * + * @param base PIT peripheral base address + * @param channel Timer channel number + * + * @return Current timer counting value in ticks + */ +static inline uint32_t PIT_GetCurrentTimerCount(PIT_Type *base, pit_chnl_t channel) +{ + return base->CHANNEL[channel].CVAL; +} + +/*! @}*/ + +/*! + * @name Timer Start and Stop + * @{ + */ + +/*! + * @brief Starts the timer counting. + * + * After calling this function, timers load period value, count down to 0 and + * then load the respective start value again. Each time a timer reaches 0, + * it generates a trigger pulse and sets the timeout interrupt flag. + * + * @param base PIT peripheral base address + * @param channel Timer channel number. + */ +static inline void PIT_StartTimer(PIT_Type *base, pit_chnl_t channel) +{ + base->CHANNEL[channel].TCTRL |= PIT_TCTRL_TEN_MASK; +} + +/*! + * @brief Stops the timer counting. + * + * This function stops every timer counting. Timers reload their periods + * respectively after the next time they call the PIT_DRV_StartTimer. + * + * @param base PIT peripheral base address + * @param channel Timer channel number. + */ +static inline void PIT_StopTimer(PIT_Type *base, pit_chnl_t channel) +{ + base->CHANNEL[channel].TCTRL &= ~PIT_TCTRL_TEN_MASK; +} + +/*! @}*/ + +#if defined(FSL_FEATURE_PIT_HAS_LIFETIME_TIMER) && FSL_FEATURE_PIT_HAS_LIFETIME_TIMER + +/*! + * @brief Reads the current lifetime counter value. + * + * The lifetime timer is a 64-bit timer which chains timer 0 and timer 1 together. + * Timer 0 and 1 are chained by calling the PIT_SetTimerChainMode before using this timer. + * The period of lifetime timer is equal to the "period of timer 0 * period of timer 1". + * For the 64-bit value, the higher 32-bit has the value of timer 1, and the lower 32-bit + * has the value of timer 0. + * + * @param base PIT peripheral base address + * + * @return Current lifetime timer value + */ +uint64_t PIT_GetLifetimeTimerCount(PIT_Type *base); + +#endif /* FSL_FEATURE_PIT_HAS_LIFETIME_TIMER */ + +#if defined(__cplusplus) +} +#endif + +/*! @}*/ + +#endif /* _FSL_PIT_H_ */ diff --git a/drivers/fsl_pmc.c b/drivers/fsl_pmc.c new file mode 100644 index 0000000..82d7b7a --- /dev/null +++ b/drivers/fsl_pmc.c @@ -0,0 +1,93 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#include "fsl_pmc.h" + +#if (defined(FSL_FEATURE_PMC_HAS_PARAM) && FSL_FEATURE_PMC_HAS_PARAM) +void PMC_GetParam(PMC_Type *base, pmc_param_t *param) +{ + uint32_t reg = base->PARAM; + ; + param->vlpoEnable = (bool)(reg & PMC_PARAM_VLPOE_MASK); + param->hvdEnable = (bool)(reg & PMC_PARAM_HVDE_MASK); +} +#endif /* FSL_FEATURE_PMC_HAS_PARAM */ + +void PMC_ConfigureLowVoltDetect(PMC_Type *base, const pmc_low_volt_detect_config_t *config) +{ + base->LVDSC1 = (0U | +#if (defined(FSL_FEATURE_PMC_HAS_LVDV) && FSL_FEATURE_PMC_HAS_LVDV) + ((uint32_t)config->voltSelect << PMC_LVDSC1_LVDV_SHIFT) | +#endif + ((uint32_t)config->enableInt << PMC_LVDSC1_LVDIE_SHIFT) | + ((uint32_t)config->enableReset << PMC_LVDSC1_LVDRE_SHIFT) + /* Clear the Low Voltage Detect Flag with previouse power detect setting */ + | PMC_LVDSC1_LVDACK_MASK); +} + +void PMC_ConfigureLowVoltWarning(PMC_Type *base, const pmc_low_volt_warning_config_t *config) +{ + base->LVDSC2 = (0U | +#if (defined(FSL_FEATURE_PMC_HAS_LVWV) && FSL_FEATURE_PMC_HAS_LVWV) + ((uint32_t)config->voltSelect << PMC_LVDSC2_LVWV_SHIFT) | +#endif + ((uint32_t)config->enableInt << PMC_LVDSC2_LVWIE_SHIFT) + /* Clear the Low Voltage Warning Flag with previouse power detect setting */ + | PMC_LVDSC2_LVWACK_MASK); +} + +#if (defined(FSL_FEATURE_PMC_HAS_HVDSC1) && FSL_FEATURE_PMC_HAS_HVDSC1) +void PMC_ConfigureHighVoltDetect(PMC_Type *base, const pmc_high_volt_detect_config_t *config) +{ + base->HVDSC1 = (((uint32_t)config->voltSelect << PMC_HVDSC1_HVDV_SHIFT) | + ((uint32_t)config->enableInt << PMC_HVDSC1_HVDIE_SHIFT) | + ((uint32_t)config->enableReset << PMC_HVDSC1_HVDRE_SHIFT) + /* Clear the High Voltage Detect Flag with previouse power detect setting */ + | PMC_HVDSC1_HVDACK_MASK); +} +#endif /* FSL_FEATURE_PMC_HAS_HVDSC1 */ + +#if ((defined(FSL_FEATURE_PMC_HAS_BGBE) && FSL_FEATURE_PMC_HAS_BGBE) || \ + (defined(FSL_FEATURE_PMC_HAS_BGEN) && FSL_FEATURE_PMC_HAS_BGEN) || \ + (defined(FSL_FEATURE_PMC_HAS_BGBDS) && FSL_FEATURE_PMC_HAS_BGBDS)) +void PMC_ConfigureBandgapBuffer(PMC_Type *base, const pmc_bandgap_buffer_config_t *config) +{ + base->REGSC = (0U +#if (defined(FSL_FEATURE_PMC_HAS_BGBE) && FSL_FEATURE_PMC_HAS_BGBE) + | ((uint32_t)config->enable << PMC_REGSC_BGBE_SHIFT) +#endif /* FSL_FEATURE_PMC_HAS_BGBE */ +#if (defined(FSL_FEATURE_PMC_HAS_BGEN) && FSL_FEATURE_PMC_HAS_BGEN) + | (((uint32_t)config->enableInLowPowerMode << PMC_REGSC_BGEN_SHIFT)) +#endif /* FSL_FEATURE_PMC_HAS_BGEN */ +#if (defined(FSL_FEATURE_PMC_HAS_BGBDS) && FSL_FEATURE_PMC_HAS_BGBDS) + | ((uint32_t)config->drive << PMC_REGSC_BGBDS_SHIFT) +#endif /* FSL_FEATURE_PMC_HAS_BGBDS */ + ); +} +#endif diff --git a/drivers/fsl_pmc.h b/drivers/fsl_pmc.h new file mode 100644 index 0000000..f39a22f --- /dev/null +++ b/drivers/fsl_pmc.h @@ -0,0 +1,421 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_PMC_H_ +#define _FSL_PMC_H_ + +#include "fsl_common.h" + +/*! @addtogroup pmc */ +/*! @{ */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief PMC driver version */ +#define FSL_PMC_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) /*!< Version 2.0.0. */ +/*@}*/ + +#if (defined(FSL_FEATURE_PMC_HAS_LVDV) && FSL_FEATURE_PMC_HAS_LVDV) +/*! + * @brief Low-Voltage Detect Voltage Select + */ +typedef enum _pmc_low_volt_detect_volt_select +{ + kPMC_LowVoltDetectLowTrip = 0U, /*!< Low trip point selected (VLVD = VLVDL )*/ + kPMC_LowVoltDetectHighTrip = 1U /*!< High trip point selected (VLVD = VLVDH )*/ +} pmc_low_volt_detect_volt_select_t; +#endif + +#if (defined(FSL_FEATURE_PMC_HAS_LVWV) && FSL_FEATURE_PMC_HAS_LVWV) +/*! + * @brief Low-Voltage Warning Voltage Select + */ +typedef enum _pmc_low_volt_warning_volt_select +{ + kPMC_LowVoltWarningLowTrip = 0U, /*!< Low trip point selected (VLVW = VLVW1)*/ + kPMC_LowVoltWarningMid1Trip = 1U, /*!< Mid 1 trip point selected (VLVW = VLVW2)*/ + kPMC_LowVoltWarningMid2Trip = 2U, /*!< Mid 2 trip point selected (VLVW = VLVW3)*/ + kPMC_LowVoltWarningHighTrip = 3U /*!< High trip point selected (VLVW = VLVW4)*/ +} pmc_low_volt_warning_volt_select_t; +#endif + +#if (defined(FSL_FEATURE_PMC_HAS_HVDSC1) && FSL_FEATURE_PMC_HAS_HVDSC1) +/*! + * @brief High-Voltage Detect Voltage Select + */ +typedef enum _pmc_high_volt_detect_volt_select +{ + kPMC_HighVoltDetectLowTrip = 0U, /*!< Low trip point selected (VHVD = VHVDL )*/ + kPMC_HighVoltDetectHighTrip = 1U /*!< High trip point selected (VHVD = VHVDH )*/ +} pmc_high_volt_detect_volt_select_t; +#endif /* FSL_FEATURE_PMC_HAS_HVDSC1 */ + +#if (defined(FSL_FEATURE_PMC_HAS_BGBDS) && FSL_FEATURE_PMC_HAS_BGBDS) +/*! + * @brief Bandgap Buffer Drive Select. + */ +typedef enum _pmc_bandgap_buffer_drive_select +{ + kPMC_BandgapBufferDriveLow = 0U, /*!< Low drive. */ + kPMC_BandgapBufferDriveHigh = 1U /*!< High drive. */ +} pmc_bandgap_buffer_drive_select_t; +#endif /* FSL_FEATURE_PMC_HAS_BGBDS */ + +#if (defined(FSL_FEATURE_PMC_HAS_VLPO) && FSL_FEATURE_PMC_HAS_VLPO) +/*! + * @brief VLPx Option + */ +typedef enum _pmc_vlp_freq_option +{ + kPMC_FreqRestrict = 0U, /*!< Frequency is restricted in VLPx mode. */ + kPMC_FreqUnrestrict = 1U /*!< Frequency is unrestricted in VLPx mode. */ +} pmc_vlp_freq_mode_t; +#endif /* FSL_FEATURE_PMC_HAS_VLPO */ + +#if (defined(FSL_FEATURE_PMC_HAS_VERID) && FSL_FEATURE_PMC_HAS_VERID) +/*! + @brief IP version ID definition. + */ +typedef struct _pmc_version_id +{ + uint16_t feature; /*!< Feature Specification Number. */ + uint8_t minor; /*!< Minor version number. */ + uint8_t major; /*!< Major version number. */ +} pmc_version_id_t; +#endif /* FSL_FEATURE_PMC_HAS_VERID */ + +#if (defined(FSL_FEATURE_PMC_HAS_PARAM) && FSL_FEATURE_PMC_HAS_PARAM) +/*! @brief IP parameter definition. */ +typedef struct _pmc_param +{ + bool vlpoEnable; /*!< VLPO enable. */ + bool hvdEnable; /*!< HVD enable. */ +} pmc_param_t; +#endif /* FSL_FEATURE_PMC_HAS_PARAM */ + +/*! + * @brief Low-Voltage Detect Configuration Structure + */ +typedef struct _pmc_low_volt_detect_config +{ + bool enableInt; /*!< Enable interrupt when low-voltage detect*/ + bool enableReset; /*!< Enable system reset when low-voltage detect*/ +#if (defined(FSL_FEATURE_PMC_HAS_LVDV) && FSL_FEATURE_PMC_HAS_LVDV) + pmc_low_volt_detect_volt_select_t voltSelect; /*!< Low-voltage detect trip point voltage selection*/ +#endif +} pmc_low_volt_detect_config_t; + +/*! + * @brief Low-Voltage Warning Configuration Structure + */ +typedef struct _pmc_low_volt_warning_config +{ + bool enableInt; /*!< Enable interrupt when low-voltage warning*/ +#if (defined(FSL_FEATURE_PMC_HAS_LVWV) && FSL_FEATURE_PMC_HAS_LVWV) + pmc_low_volt_warning_volt_select_t voltSelect; /*!< Low-voltage warning trip point voltage selection*/ +#endif +} pmc_low_volt_warning_config_t; + +#if (defined(FSL_FEATURE_PMC_HAS_HVDSC1) && FSL_FEATURE_PMC_HAS_HVDSC1) +/*! + * @brief High-Voltage Detect Configuration Structure + */ +typedef struct _pmc_high_volt_detect_config +{ + bool enableInt; /*!< Enable interrupt when high-voltage detect*/ + bool enableReset; /*!< Enable system reset when high-voltage detect*/ + pmc_high_volt_detect_volt_select_t voltSelect; /*!< High-voltage detect trip point voltage selection*/ +} pmc_high_volt_detect_config_t; +#endif /* FSL_FEATURE_PMC_HAS_HVDSC1 */ + +#if ((defined(FSL_FEATURE_PMC_HAS_BGBE) && FSL_FEATURE_PMC_HAS_BGBE) || \ + (defined(FSL_FEATURE_PMC_HAS_BGEN) && FSL_FEATURE_PMC_HAS_BGEN) || \ + (defined(FSL_FEATURE_PMC_HAS_BGBDS) && FSL_FEATURE_PMC_HAS_BGBDS)) +/*! + * @brief Bandgap Buffer configuration. + */ +typedef struct _pmc_bandgap_buffer_config +{ +#if (defined(FSL_FEATURE_PMC_HAS_BGBE) && FSL_FEATURE_PMC_HAS_BGBE) + bool enable; /*!< Enable bandgap buffer. */ +#endif +#if (defined(FSL_FEATURE_PMC_HAS_BGEN) && FSL_FEATURE_PMC_HAS_BGEN) + bool enableInLowPowerMode; /*!< Enable bandgap buffer in low-power mode. */ +#endif /* FSL_FEATURE_PMC_HAS_BGEN */ +#if (defined(FSL_FEATURE_PMC_HAS_BGBDS) && FSL_FEATURE_PMC_HAS_BGBDS) + pmc_bandgap_buffer_drive_select_t drive; /*!< Bandgap buffer drive select. */ +#endif /* FSL_FEATURE_PMC_HAS_BGBDS */ +} pmc_bandgap_buffer_config_t; +#endif + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /* __cplusplus*/ + +/*! @name Power Management Controller Control APIs*/ +/*@{*/ + +#if (defined(FSL_FEATURE_PMC_HAS_VERID) && FSL_FEATURE_PMC_HAS_VERID) +/*! + * @brief Gets the PMC version ID. + * + * This function gets the PMC version ID, including major version number, + * minor version number and feature specification number. + * + * @param base PMC peripheral base address. + * @param versionId Pointer to version ID structure. + */ +static inline void PMC_GetVersionId(PMC_Type *base, pmc_version_id_t *versionId) +{ + *((uint32_t *)versionId) = base->VERID; +} +#endif /* FSL_FEATURE_PMC_HAS_VERID */ + +#if (defined(FSL_FEATURE_PMC_HAS_PARAM) && FSL_FEATURE_PMC_HAS_PARAM) +/*! + * @brief Gets the PMC parameter. + * + * This function gets the PMC parameter, including VLPO enable and HVD enable. + * + * @param base PMC peripheral base address. + * @param param Pointer to PMC param structure. + */ +void PMC_GetParam(PMC_Type *base, pmc_param_t *param); +#endif + +/*! + * @brief Configure the low-voltage detect setting. + * + * This function configures the low-voltage detect setting, including the trip + * point voltage setting, enable interrupt or not, enable system reset or not. + * + * @param base PMC peripheral base address. + * @param config Low-Voltage detect configuration structure. + */ +void PMC_ConfigureLowVoltDetect(PMC_Type *base, const pmc_low_volt_detect_config_t *config); + +/*! + * @brief Get Low-Voltage Detect Flag status + * + * This function reads the current LVDF status. If it returns 1, a low-voltage event is detected. + * + * @param base PMC peripheral base address. + * @return Current low-voltage detect flag + * - true: Low-voltage detected + * - false: Low-voltage not detected + */ +static inline bool PMC_GetLowVoltDetectFlag(PMC_Type *base) +{ + return (bool)(base->LVDSC1 & PMC_LVDSC1_LVDF_MASK); +} + +/*! + * @brief Acknowledge to clear the Low-voltage Detect flag + * + * This function acknowledges the low-voltage detection errors (write 1 to + * clear LVDF). + * + * @param base PMC peripheral base address. + */ +static inline void PMC_ClearLowVoltDetectFlag(PMC_Type *base) +{ + base->LVDSC1 |= PMC_LVDSC1_LVDACK_MASK; +} + +/*! + * @brief Configure the low-voltage warning setting. + * + * This function configures the low-voltage warning setting, including the trip + * point voltage setting and enable interrupt or not. + * + * @param base PMC peripheral base address. + * @param config Low-Voltage warning configuration structure. + */ +void PMC_ConfigureLowVoltWarning(PMC_Type *base, const pmc_low_volt_warning_config_t *config); + +/*! + * @brief Get Low-Voltage Warning Flag status + * + * This function polls the current LVWF status. When 1 is returned, it + * indicates a low-voltage warning event. LVWF is set when V Supply transitions + * below the trip point or after reset and V Supply is already below the V LVW. + * + * @param base PMC peripheral base address. + * @return Current LVWF status + * - true: Low-Voltage Warning Flag is set. + * - false: the Low-Voltage Warning does not happen. + */ +static inline bool PMC_GetLowVoltWarningFlag(PMC_Type *base) +{ + return (bool)(base->LVDSC2 & PMC_LVDSC2_LVWF_MASK); +} + +/*! + * @brief Acknowledge to Low-Voltage Warning flag + * + * This function acknowledges the low voltage warning errors (write 1 to + * clear LVWF). + * + * @param base PMC peripheral base address. + */ +static inline void PMC_ClearLowVoltWarningFlag(PMC_Type *base) +{ + base->LVDSC2 |= PMC_LVDSC2_LVWACK_MASK; +} + +#if (defined(FSL_FEATURE_PMC_HAS_HVDSC1) && FSL_FEATURE_PMC_HAS_HVDSC1) +/*! + * @brief Configure the high-voltage detect setting. + * + * This function configures the high-voltage detect setting, including the trip + * point voltage setting, enable interrupt or not, enable system reset or not. + * + * @param base PMC peripheral base address. + * @param config High-voltage detect configuration structure. + */ +void PMC_ConfigureHighVoltDetect(PMC_Type *base, const pmc_high_volt_detect_config_t *config); + +/*! + * @brief Get High-Voltage Detect Flag status + * + * This function reads the current HVDF status. If it returns 1, a low + * voltage event is detected. + * + * @param base PMC peripheral base address. + * @return Current high-voltage detect flag + * - true: High-Voltage detected + * - false: High-Voltage not detected + */ +static inline bool PMC_GetHighVoltDetectFlag(PMC_Type *base) +{ + return (bool)(base->HVDSC1 & PMC_HVDSC1_HVDF_MASK); +} + +/*! + * @brief Acknowledge to clear the High-Voltage Detect flag + * + * This function acknowledges the high-voltage detection errors (write 1 to + * clear HVDF). + * + * @param base PMC peripheral base address. + */ +static inline void PMC_ClearHighVoltDetectFlag(PMC_Type *base) +{ + base->HVDSC1 |= PMC_HVDSC1_HVDACK_MASK; +} +#endif /* FSL_FEATURE_PMC_HAS_HVDSC1 */ + +#if ((defined(FSL_FEATURE_PMC_HAS_BGBE) && FSL_FEATURE_PMC_HAS_BGBE) || \ + (defined(FSL_FEATURE_PMC_HAS_BGEN) && FSL_FEATURE_PMC_HAS_BGEN) || \ + (defined(FSL_FEATURE_PMC_HAS_BGBDS) && FSL_FEATURE_PMC_HAS_BGBDS)) +/*! + * @brief Configure the PMC bandgap + * + * This function configures the PMC bandgap, including the drive select and + * behavior in low-power mode. + * + * @param base PMC peripheral base address. + * @param config Pointer to the configuration structure + */ +void PMC_ConfigureBandgapBuffer(PMC_Type *base, const pmc_bandgap_buffer_config_t *config); +#endif + +#if (defined(FSL_FEATURE_PMC_HAS_ACKISO) && FSL_FEATURE_PMC_HAS_ACKISO) +/*! + * @brief Gets the acknowledge Peripherals and I/O pads isolation flag. + * + * This function reads the Acknowledge Isolation setting that indicates + * whether certain peripherals and the I/O pads are in a latched state as + * a result of having been in the VLLS mode. + * + * @param base PMC peripheral base address. + * @param base Base address for current PMC instance. + * @return ACK isolation + * 0 - Peripherals and I/O pads are in a normal run state. + * 1 - Certain peripherals and I/O pads are in an isolated and + * latched state. + */ +static inline bool PMC_GetPeriphIOIsolationFlag(PMC_Type *base) +{ + return (bool)(base->REGSC & PMC_REGSC_ACKISO_MASK); +} + +/*! + * @brief Acknowledge to Peripherals and I/O pads isolation flag. + * + * This function clears the ACK Isolation flag. Writing one to this setting + * when it is set releases the I/O pads and certain peripherals to their normal + * run mode state. + * + * @param base PMC peripheral base address. + */ +static inline void PMC_ClearPeriphIOIsolationFlag(PMC_Type *base) +{ + base->REGSC |= PMC_REGSC_ACKISO_MASK; +} +#endif /* FSL_FEATURE_PMC_HAS_ACKISO */ + +#if (defined(FSL_FEATURE_PMC_HAS_REGONS) && FSL_FEATURE_PMC_HAS_REGONS) +/*! + * @brief Gets the Regulator regulation status. + * + * This function returns the regulator to a run regulation status. It provides + * the current status of the internal voltage regulator. + * + * @param base PMC peripheral base address. + * @param base Base address for current PMC instance. + * @return Regulation status + * 0 - Regulator is in a stop regulation or in transition to/from the regulation. + * 1 - Regulator is in a run regulation. + * + */ +static inline bool PMC_IsRegulatorInRunRegulation(PMC_Type *base) +{ + return (bool)(base->REGSC & PMC_REGSC_REGONS_MASK); +} +#endif /* FSL_FEATURE_PMC_HAS_REGONS */ + +/*@}*/ + +#if defined(__cplusplus) +} +#endif /* __cplusplus*/ + +/*! @}*/ + +#endif /* _FSL_PMC_H_*/ diff --git a/drivers/fsl_port.h b/drivers/fsl_port.h new file mode 100644 index 0000000..935b032 --- /dev/null +++ b/drivers/fsl_port.h @@ -0,0 +1,381 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SDRVL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_PORT_H_ +#define _FSL_PORT_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup port + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! Version 2.0.1. */ +#define FSL_PORT_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) +/*@}*/ + +/*! @brief Internal resistor pull feature selection */ +enum _port_pull +{ + kPORT_PullDisable = 0U, /*!< Internal pull-up/down resistor is disabled. */ + kPORT_PullDown = 2U, /*!< Internal pull-down resistor is enabled. */ + kPORT_PullUp = 3U, /*!< Internal pull-up resistor is enabled. */ +}; + +/*! @brief Slew rate selection */ +enum _port_slew_rate +{ + kPORT_FastSlewRate = 0U, /*!< Fast slew rate is configured. */ + kPORT_SlowSlewRate = 1U, /*!< Slow slew rate is configured. */ +}; + +#if defined(FSL_FEATURE_PORT_HAS_OPEN_DRAIN) && FSL_FEATURE_PORT_HAS_OPEN_DRAIN +/*! @brief Internal resistor pull feature enable/disable */ +enum _port_open_drain_enable +{ + kPORT_OpenDrainDisable = 0U, /*!< Internal pull-down resistor is disabled. */ + kPORT_OpenDrainEnable = 1U, /*!< Internal pull-up resistor is enabled. */ +}; +#endif /* FSL_FEATURE_PORT_HAS_OPEN_DRAIN */ + +/*! @brief Passive filter feature enable/disable */ +enum _port_passive_filter_enable +{ + kPORT_PassiveFilterDisable = 0U, /*!< Fast slew rate is configured. */ + kPORT_PassiveFilterEnable = 1U, /*!< Slow slew rate is configured. */ +}; + +/*! @brief Configures the drive strength. */ +enum _port_drive_strength +{ + kPORT_LowDriveStrength = 0U, /*!< Low-drive strength is configured. */ + kPORT_HighDriveStrength = 1U, /*!< High-drive strength is configured. */ +}; + +#if defined(FSL_FEATURE_PORT_HAS_PIN_CONTROL_LOCK) && FSL_FEATURE_PORT_HAS_PIN_CONTROL_LOCK +/*! @brief Unlock/lock the pin control register field[15:0] */ +enum _port_lock_register +{ + kPORT_UnlockRegister = 0U, /*!< Pin Control Register fields [15:0] are not locked. */ + kPORT_LockRegister = 1U, /*!< Pin Control Register fields [15:0] are locked. */ +}; +#endif /* FSL_FEATURE_PORT_HAS_PIN_CONTROL_LOCK */ + +/*! @brief Pin mux selection */ +typedef enum _port_mux +{ + kPORT_PinDisabledOrAnalog = 0U, /*!< Corresponding pin is disabled, but is used as an analog pin. */ + kPORT_MuxAsGpio = 1U, /*!< Corresponding pin is configured as GPIO. */ + kPORT_MuxAlt2 = 2U, /*!< Chip-specific */ + kPORT_MuxAlt3 = 3U, /*!< Chip-specific */ + kPORT_MuxAlt4 = 4U, /*!< Chip-specific */ + kPORT_MuxAlt5 = 5U, /*!< Chip-specific */ + kPORT_MuxAlt6 = 6U, /*!< Chip-specific */ + kPORT_MuxAlt7 = 7U, /*!< Chip-specific */ +} port_mux_t; + +/*! @brief Configures the interrupt generation condition. */ +typedef enum _port_interrupt +{ + kPORT_InterruptOrDMADisabled = 0x0U, /*!< Interrupt/DMA request is disabled. */ +#if defined(FSL_FEATURE_PORT_HAS_DMA_REQUEST) && FSL_FEATURE_PORT_HAS_DMA_REQUEST + kPORT_DMARisingEdge = 0x1U, /*!< DMA request on rising edge. */ + kPORT_DMAFallingEdge = 0x2U, /*!< DMA request on falling edge. */ + kPORT_DMAEitherEdge = 0x3U, /*!< DMA request on either edge. */ +#endif +#if defined(FSL_FEATURE_PORT_HAS_IRQC_FLAG) && FSL_FEATURE_PORT_HAS_IRQC_FLAG + kPORT_FlagRisingEdge = 0x05U, /*!< Flag sets on rising edge. */ + kPORT_FlagFallingEdge = 0x06U, /*!< Flag sets on falling edge. */ + kPORT_FlagEitherEdge = 0x07U, /*!< Flag sets on either edge. */ +#endif + kPORT_InterruptLogicZero = 0x8U, /*!< Interrupt when logic zero. */ + kPORT_InterruptRisingEdge = 0x9U, /*!< Interrupt on rising edge. */ + kPORT_InterruptFallingEdge = 0xAU, /*!< Interrupt on falling edge. */ + kPORT_InterruptEitherEdge = 0xBU, /*!< Interrupt on either edge. */ + kPORT_InterruptLogicOne = 0xCU, /*!< Interrupt when logic one. */ +#if defined(FSL_FEATURE_PORT_HAS_IRQC_TRIGGER) && FSL_FEATURE_PORT_HAS_IRQC_TRIGGER + kPORT_ActiveHighTriggerOutputEnable = 0xDU, /*!< Enable active high-trigger output. */ + kPORT_ActiveLowTriggerOutputEnable = 0xEU, /*!< Enable active low-trigger output. */ +#endif +} port_interrupt_t; + +#if defined(FSL_FEATURE_PORT_HAS_DIGITAL_FILTER) && FSL_FEATURE_PORT_HAS_DIGITAL_FILTER +/*! @brief Digital filter clock source selection */ +typedef enum _port_digital_filter_clock_source +{ + kPORT_BusClock = 0U, /*!< Digital filters are clocked by the bus clock. */ + kPORT_LpoClock = 1U, /*!< Digital filters are clocked by the 1 kHz LPO clock. */ +} port_digital_filter_clock_source_t; + +/*! @brief PORT digital filter feature configuration definition */ +typedef struct _port_digital_filter_config +{ + uint32_t digitalFilterWidth; /*!< Set digital filter width */ + port_digital_filter_clock_source_t clockSource; /*!< Set digital filter clockSource */ +} port_digital_filter_config_t; +#endif /* FSL_FEATURE_PORT_HAS_DIGITAL_FILTER */ + +/*! @brief PORT pin configuration structure */ +typedef struct _port_pin_config +{ + uint16_t pullSelect : 2; /*!< No-pull/pull-down/pull-up select */ + uint16_t slewRate : 1; /*!< Fast/slow slew rate Configure */ + uint16_t : 1; + uint16_t passiveFilterEnable : 1; /*!< Passive filter enable/disable */ +#if defined(FSL_FEATURE_PORT_HAS_OPEN_DRAIN) && FSL_FEATURE_PORT_HAS_OPEN_DRAIN + uint16_t openDrainEnable : 1; /*!< Open drain enable/disable */ +#else + uint16_t : 1; +#endif /* FSL_FEATURE_PORT_HAS_OPEN_DRAIN */ + uint16_t driveStrength : 1; /*!< Fast/slow drive strength configure */ + uint16_t : 1; + uint16_t mux : 3; /*!< Pin mux Configure */ + uint16_t : 4; +#if defined(FSL_FEATURE_PORT_HAS_PIN_CONTROL_LOCK) && FSL_FEATURE_PORT_HAS_PIN_CONTROL_LOCK + uint16_t lockRegister : 1; /*!< Lock/unlock the PCR field[15:0] */ +#else + uint16_t : 1; +#endif /* FSL_FEATURE_PORT_HAS_PIN_CONTROL_LOCK */ +} port_pin_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! @name Configuration */ +/*@{*/ + +/*! + * @brief Sets the port PCR register. + * + * This is an example to define an input pin or output pin PCR configuration: + * @code + * // Define a digital input pin PCR configuration + * port_pin_config_t config = { + * kPORT_PullUp, + * kPORT_FastSlewRate, + * kPORT_PassiveFilterDisable, + * kPORT_OpenDrainDisable, + * kPORT_LowDriveStrength, + * kPORT_MuxAsGpio, + * kPORT_UnLockRegister, + * }; + * @endcode + * + * @param base PORT peripheral base pointer. + * @param pin PORT pin number. + * @param config PORT PCR register configuration structure. + */ +static inline void PORT_SetPinConfig(PORT_Type *base, uint32_t pin, const port_pin_config_t *config) +{ + assert(config); + uint32_t addr = (uint32_t)&base->PCR[pin]; + *(volatile uint16_t *)(addr) = *((const uint16_t *)config); +} + +/*! + * @brief Sets the port PCR register for multiple pins. + * + * This is an example to define input pins or output pins PCR configuration: + * @code + * // Define a digital input pin PCR configuration + * port_pin_config_t config = { + * kPORT_PullUp , + * kPORT_PullEnable, + * kPORT_FastSlewRate, + * kPORT_PassiveFilterDisable, + * kPORT_OpenDrainDisable, + * kPORT_LowDriveStrength, + * kPORT_MuxAsGpio, + * kPORT_UnlockRegister, + * }; + * @endcode + * + * @param base PORT peripheral base pointer. + * @param mask PORT pin number macro. + * @param config PORT PCR register configuration structure. + */ +static inline void PORT_SetMultiplePinsConfig(PORT_Type *base, uint32_t mask, const port_pin_config_t *config) +{ + assert(config); + + uint16_t pcrl = *((const uint16_t *)config); + + if (mask & 0xffffU) + { + base->GPCLR = ((mask & 0xffffU) << 16) | pcrl; + } + if (mask >> 16) + { + base->GPCHR = (mask & 0xffff0000U) | pcrl; + } +} + +/*! + * @brief Configures the pin muxing. + * + * @param base PORT peripheral base pointer. + * @param pin PORT pin number. + * @param mux pin muxing slot selection. + * - #kPORT_PinDisabledOrAnalog: Pin disabled or work in analog function. + * - #kPORT_MuxAsGpio : Set as GPIO. + * - #kPORT_MuxAlt2 : chip-specific. + * - #kPORT_MuxAlt3 : chip-specific. + * - #kPORT_MuxAlt4 : chip-specific. + * - #kPORT_MuxAlt5 : chip-specific. + * - #kPORT_MuxAlt6 : chip-specific. + * - #kPORT_MuxAlt7 : chip-specific. + * @Note : This function is NOT recommended to use together with the PORT_SetPinsConfig, because + * the PORT_SetPinsConfig need to configure the pin mux anyway (Otherwise the pin mux is + * reset to zero : kPORT_PinDisabledOrAnalog). + * This function is recommended to use to reset the pin mux + * + */ +static inline void PORT_SetPinMux(PORT_Type *base, uint32_t pin, port_mux_t mux) +{ + base->PCR[pin] = (base->PCR[pin] & ~PORT_PCR_MUX_MASK) | PORT_PCR_MUX(mux); +} + +#if defined(FSL_FEATURE_PORT_HAS_DIGITAL_FILTER) && FSL_FEATURE_PORT_HAS_DIGITAL_FILTER + +/*! + * @brief Enables the digital filter in one port, each bit of the 32-bit register represents one pin. + * + * @param base PORT peripheral base pointer. + * @param mask PORT pin number macro. + */ +static inline void PORT_EnablePinsDigitalFilter(PORT_Type *base, uint32_t mask, bool enable) +{ + if (enable == true) + { + base->DFER |= mask; + } + else + { + base->DFER &= ~mask; + } +} + +/*! + * @brief Sets the digital filter in one port, each bit of the 32-bit register represents one pin. + * + * @param base PORT peripheral base pointer. + * @param config PORT digital filter configuration structure. + */ +static inline void PORT_SetDigitalFilterConfig(PORT_Type *base, const port_digital_filter_config_t *config) +{ + assert(config); + + base->DFCR = PORT_DFCR_CS(config->clockSource); + base->DFWR = PORT_DFWR_FILT(config->digitalFilterWidth); +} + +#endif /* FSL_FEATURE_PORT_HAS_DIGITAL_FILTER */ + +/*@}*/ + +/*! @name Interrupt */ +/*@{*/ + +/*! + * @brief Configures the port pin interrupt/DMA request. + * + * @param base PORT peripheral base pointer. + * @param pin PORT pin number. + * @param config PORT pin interrupt configuration. + * - #kPORT_InterruptOrDMADisabled: Interrupt/DMA request disabled. + * - #kPORT_DMARisingEdge : DMA request on rising edge(if the DMA requests exit). + * - #kPORT_DMAFallingEdge: DMA request on falling edge(if the DMA requests exit). + * - #kPORT_DMAEitherEdge : DMA request on either edge(if the DMA requests exit). + * - #kPORT_FlagRisingEdge : Flag sets on rising edge(if the Flag states exit). + * - #kPORT_FlagFallingEdge : Flag sets on falling edge(if the Flag states exit). + * - #kPORT_FlagEitherEdge : Flag sets on either edge(if the Flag states exit). + * - #kPORT_InterruptLogicZero : Interrupt when logic zero. + * - #kPORT_InterruptRisingEdge : Interrupt on rising edge. + * - #kPORT_InterruptFallingEdge: Interrupt on falling edge. + * - #kPORT_InterruptEitherEdge : Interrupt on either edge. + * - #kPORT_InterruptLogicOne : Interrupt when logic one. + * - #kPORT_ActiveHighTriggerOutputEnable : Enable active high-trigger output (if the trigger states exit). + * - #kPORT_ActiveLowTriggerOutputEnable : Enable active low-trigger output (if the trigger states exit). + */ +static inline void PORT_SetPinInterruptConfig(PORT_Type *base, uint32_t pin, port_interrupt_t config) +{ + base->PCR[pin] = (base->PCR[pin] & ~PORT_PCR_IRQC_MASK) | PORT_PCR_IRQC(config); +} + +/*! + * @brief Reads the whole port status flag. + * + * If a pin is configured to generate the DMA request, the corresponding flag + * is cleared automatically at the completion of the requested DMA transfer. + * Otherwise, the flag remains set until a logic one is written to that flag. + * If configured for a level sensitive interrupt that remains asserted, the flag + * is set again immediately. + * + * @param base PORT peripheral base pointer. + * @return Current port interrupt status flags, for example, 0x00010001 means the + * pin 0 and 17 have the interrupt. + */ +static inline uint32_t PORT_GetPinsInterruptFlags(PORT_Type *base) +{ + return base->ISFR; +} + +/*! + * @brief Clears the multiple pin interrupt status flag. + * + * @param base PORT peripheral base pointer. + * @param mask PORT pin number macro. + */ +static inline void PORT_ClearPinsInterruptFlags(PORT_Type *base, uint32_t mask) +{ + base->ISFR = mask; +} + +/*@}*/ + +#if defined(__cplusplus) +} +#endif + +/*! @}*/ + +#endif /* _FSL_PORT_H_ */ diff --git a/drivers/fsl_rcm.c b/drivers/fsl_rcm.c new file mode 100644 index 0000000..9cf7479 --- /dev/null +++ b/drivers/fsl_rcm.c @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_rcm.h" + +void RCM_ConfigureResetPinFilter(RCM_Type *base, const rcm_reset_pin_filter_config_t *config) +{ + assert(config); + +#if (defined(FSL_FEATURE_RCM_REG_WIDTH) && (FSL_FEATURE_RCM_REG_WIDTH == 32)) + uint32_t reg; + + reg = (((uint32_t)config->enableFilterInStop << RCM_RPC_RSTFLTSS_SHIFT) | (uint32_t)config->filterInRunWait); + if (config->filterInRunWait == kRCM_FilterBusClock) + { + reg |= ((uint32_t)config->busClockFilterCount << RCM_RPC_RSTFLTSEL_SHIFT); + } + base->RPC = reg; +#else + base->RPFC = ((uint8_t)(config->enableFilterInStop << RCM_RPFC_RSTFLTSS_SHIFT) | (uint8_t)config->filterInRunWait); + if (config->filterInRunWait == kRCM_FilterBusClock) + { + base->RPFW = config->busClockFilterCount; + } +#endif /* FSL_FEATURE_RCM_REG_WIDTH */ +} + +#if (defined(FSL_FEATURE_RCM_HAS_BOOTROM) && FSL_FEATURE_RCM_HAS_BOOTROM) +void RCM_SetForceBootRomSource(RCM_Type *base, rcm_boot_rom_config_t config) +{ + uint32_t reg; + + reg = base->FM; + reg &= ~RCM_FM_FORCEROM_MASK; + reg |= ((uint32_t)config << RCM_FM_FORCEROM_SHIFT); + base->FM = reg; +} +#endif /* #if FSL_FEATURE_RCM_HAS_BOOTROM */ diff --git a/drivers/fsl_rcm.h b/drivers/fsl_rcm.h new file mode 100644 index 0000000..fbc5169 --- /dev/null +++ b/drivers/fsl_rcm.h @@ -0,0 +1,431 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_RCM_H_ +#define _FSL_RCM_H_ + +#include "fsl_common.h" + +/*! @addtogroup rcm */ +/*! @{*/ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief RCM driver version 2.0.1. */ +#define FSL_RCM_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) +/*@}*/ + +/*! + * @brief System Reset Source Name definitions + */ +typedef enum _rcm_reset_source +{ +#if (defined(FSL_FEATURE_RCM_REG_WIDTH) && (FSL_FEATURE_RCM_REG_WIDTH == 32)) +/* RCM register bit width is 32. */ +#if (defined(FSL_FEATURE_RCM_HAS_WAKEUP) && FSL_FEATURE_RCM_HAS_WAKEUP) + kRCM_SourceWakeup = RCM_SRS_WAKEUP_MASK, /*!< Low-leakage wakeup reset */ +#endif + kRCM_SourceLvd = RCM_SRS_LVD_MASK, /*!< Low-voltage detect reset */ +#if (defined(FSL_FEATURE_RCM_HAS_LOC) && FSL_FEATURE_RCM_HAS_LOC) + kRCM_SourceLoc = RCM_SRS_LOC_MASK, /*!< Loss of clock reset */ +#endif /* FSL_FEATURE_RCM_HAS_LOC */ +#if (defined(FSL_FEATURE_RCM_HAS_LOL) && FSL_FEATURE_RCM_HAS_LOL) + kRCM_SourceLol = RCM_SRS_LOL_MASK, /*!< Loss of lock reset */ +#endif /* FSL_FEATURE_RCM_HAS_LOL */ + kRCM_SourceWdog = RCM_SRS_WDOG_MASK, /*!< Watchdog reset */ + kRCM_SourcePin = RCM_SRS_PIN_MASK, /*!< External pin reset */ + kRCM_SourcePor = RCM_SRS_POR_MASK, /*!< Power on reset */ +#if (defined(FSL_FEATURE_RCM_HAS_JTAG) && FSL_FEATURE_RCM_HAS_JTAG) + kRCM_SourceJtag = RCM_SRS_JTAG_MASK, /*!< JTAG generated reset */ +#endif /* FSL_FEATURE_RCM_HAS_JTAG */ + kRCM_SourceLockup = RCM_SRS_LOCKUP_MASK, /*!< Core lock up reset */ + kRCM_SourceSw = RCM_SRS_SW_MASK, /*!< Software reset */ +#if (defined(FSL_FEATURE_RCM_HAS_MDM_AP) && FSL_FEATURE_RCM_HAS_MDM_AP) + kRCM_SourceMdmap = RCM_SRS_MDM_AP_MASK, /*!< MDM-AP system reset */ +#endif /* FSL_FEATURE_RCM_HAS_MDM_AP */ +#if (defined(FSL_FEATURE_RCM_HAS_EZPORT) && FSL_FEATURE_RCM_HAS_EZPORT) + kRCM_SourceEzpt = RCM_SRS_EZPT_MASK, /*!< EzPort reset */ +#endif /* FSL_FEATURE_RCM_HAS_EZPORT */ + kRCM_SourceSackerr = RCM_SRS_SACKERR_MASK, /*!< Parameter could get all reset flags */ + +#else /* (FSL_FEATURE_RCM_REG_WIDTH == 32) */ +/* RCM register bit width is 8. */ +#if (defined(FSL_FEATURE_RCM_HAS_WAKEUP) && FSL_FEATURE_RCM_HAS_WAKEUP) + kRCM_SourceWakeup = RCM_SRS0_WAKEUP_MASK, /*!< Low-leakage wakeup reset */ +#endif + kRCM_SourceLvd = RCM_SRS0_LVD_MASK, /*!< Low-voltage detect reset */ +#if (defined(FSL_FEATURE_RCM_HAS_LOC) && FSL_FEATURE_RCM_HAS_LOC) + kRCM_SourceLoc = RCM_SRS0_LOC_MASK, /*!< Loss of clock reset */ +#endif /* FSL_FEATURE_RCM_HAS_LOC */ +#if (defined(FSL_FEATURE_RCM_HAS_LOL) && FSL_FEATURE_RCM_HAS_LOL) + kRCM_SourceLol = RCM_SRS0_LOL_MASK, /*!< Loss of lock reset */ +#endif /* FSL_FEATURE_RCM_HAS_LOL */ + kRCM_SourceWdog = RCM_SRS0_WDOG_MASK, /*!< Watchdog reset */ + kRCM_SourcePin = RCM_SRS0_PIN_MASK, /*!< External pin reset */ + kRCM_SourcePor = RCM_SRS0_POR_MASK, /*!< Power on reset */ +#if (defined(FSL_FEATURE_RCM_HAS_JTAG) && FSL_FEATURE_RCM_HAS_JTAG) + kRCM_SourceJtag = RCM_SRS1_JTAG_MASK << 8U, /*!< JTAG generated reset */ +#endif /* FSL_FEATURE_RCM_HAS_JTAG */ + kRCM_SourceLockup = RCM_SRS1_LOCKUP_MASK << 8U, /*!< Core lock up reset */ + kRCM_SourceSw = RCM_SRS1_SW_MASK << 8U, /*!< Software reset */ +#if (defined(FSL_FEATURE_RCM_HAS_MDM_AP) && FSL_FEATURE_RCM_HAS_MDM_AP) + kRCM_SourceMdmap = RCM_SRS1_MDM_AP_MASK << 8U, /*!< MDM-AP system reset */ +#endif /* FSL_FEATURE_RCM_HAS_MDM_AP */ +#if (defined(FSL_FEATURE_RCM_HAS_EZPORT) && FSL_FEATURE_RCM_HAS_EZPORT) + kRCM_SourceEzpt = RCM_SRS1_EZPT_MASK << 8U, /*!< EzPort reset */ +#endif /* FSL_FEATURE_RCM_HAS_EZPORT */ + kRCM_SourceSackerr = RCM_SRS1_SACKERR_MASK << 8U, /*!< Parameter could get all reset flags */ +#endif /* (FSL_FEATURE_RCM_REG_WIDTH == 32) */ + kRCM_SourceAll = 0xffffffffU, +} rcm_reset_source_t; + +/*! + * @brief Reset pin filter select in Run and Wait modes + */ +typedef enum _rcm_run_wait_filter_mode +{ + kRCM_FilterDisable = 0U, /*!< All filtering disabled */ + kRCM_FilterBusClock = 1U, /*!< Bus clock filter enabled */ + kRCM_FilterLpoClock = 2U /*!< LPO clock filter enabled */ +} rcm_run_wait_filter_mode_t; + +#if (defined(FSL_FEATURE_RCM_HAS_BOOTROM) && FSL_FEATURE_RCM_HAS_BOOTROM) +/*! + * @brief Boot from ROM configuration. + */ +typedef enum _rcm_boot_rom_config +{ + kRCM_BootFlash = 0U, /*!< Boot from flash */ + kRCM_BootRomCfg0 = 1U, /*!< Boot from boot ROM due to BOOTCFG0 */ + kRCM_BootRomFopt = 2U, /*!< Boot from boot ROM due to FOPT[7] */ + kRCM_BootRomBoth = 3U /*!< Boot from boot ROM due to both BOOTCFG0 and FOPT[7] */ +} rcm_boot_rom_config_t; +#endif /* FSL_FEATURE_RCM_HAS_BOOTROM */ + +#if (defined(FSL_FEATURE_RCM_HAS_SRIE) && FSL_FEATURE_RCM_HAS_SRIE) +/*! + * @brief Max delay time from interrupt asserts to system reset. + */ +typedef enum _rcm_reset_delay +{ + kRCM_ResetDelay8Lpo = 0U, /*!< Delay 8 LPO cycles. */ + kRCM_ResetDelay32Lpo = 1U, /*!< Delay 32 LPO cycles. */ + kRCM_ResetDelay128Lpo = 2U, /*!< Delay 128 LPO cycles. */ + kRCM_ResetDelay512Lpo = 3U /*!< Delay 512 LPO cycles. */ +} rcm_reset_delay_t; + +/*! + * @brief System reset interrupt enable bit definitions. + */ +typedef enum _rcm_interrupt_enable +{ + kRCM_IntNone = 0U, /*!< No interrupt enabled. */ + kRCM_IntLossOfClk = RCM_SRIE_LOC_MASK, /*!< Loss of clock interrupt. */ + kRCM_IntLossOfLock = RCM_SRIE_LOL_MASK, /*!< Loss of lock interrupt. */ + kRCM_IntWatchDog = RCM_SRIE_WDOG_MASK, /*!< Watch dog interrupt. */ + kRCM_IntExternalPin = RCM_SRIE_PIN_MASK, /*!< External pin interrupt. */ + kRCM_IntGlobal = RCM_SRIE_GIE_MASK, /*!< Global interrupts. */ + kRCM_IntCoreLockup = RCM_SRIE_LOCKUP_MASK, /*!< Core lock up interrupt */ + kRCM_IntSoftware = RCM_SRIE_SW_MASK, /*!< software interrupt */ + kRCM_IntStopModeAckErr = RCM_SRIE_SACKERR_MASK, /*!< Stop mode ACK error interrupt. */ +#if (defined(FSL_FEATURE_RCM_HAS_CORE1) && FSL_FEATURE_RCM_HAS_CORE1) + kRCM_IntCore1 = RCM_SRIE_CORE1_MASK, /*!< Core 1 interrupt. */ +#endif + kRCM_IntAll = RCM_SRIE_LOC_MASK /*!< Enable all interrupts. */ + | + RCM_SRIE_LOL_MASK | RCM_SRIE_WDOG_MASK | RCM_SRIE_PIN_MASK | RCM_SRIE_GIE_MASK | + RCM_SRIE_LOCKUP_MASK | RCM_SRIE_SW_MASK | RCM_SRIE_SACKERR_MASK +#if (defined(FSL_FEATURE_RCM_HAS_CORE1) && FSL_FEATURE_RCM_HAS_CORE1) + | + RCM_SRIE_CORE1_MASK +#endif +} rcm_interrupt_enable_t; +#endif /* FSL_FEATURE_RCM_HAS_SRIE */ + +#if (defined(FSL_FEATURE_RCM_HAS_VERID) && FSL_FEATURE_RCM_HAS_VERID) +/*! + * @brief IP version ID definition. + */ +typedef struct _rcm_version_id +{ + uint16_t feature; /*!< Feature Specification Number. */ + uint8_t minor; /*!< Minor version number. */ + uint8_t major; /*!< Major version number. */ +} rcm_version_id_t; +#endif + +/*! + * @brief Reset pin filter configuration + */ +typedef struct _rcm_reset_pin_filter_config +{ + bool enableFilterInStop; /*!< Reset pin filter select in stop mode. */ + rcm_run_wait_filter_mode_t filterInRunWait; /*!< Reset pin filter in run/wait mode. */ + uint8_t busClockFilterCount; /*!< Reset pin bus clock filter width. */ +} rcm_reset_pin_filter_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif /* __cplusplus*/ + +/*! @name Reset Control Module APIs*/ +/*@{*/ + +#if (defined(FSL_FEATURE_RCM_HAS_VERID) && FSL_FEATURE_RCM_HAS_VERID) +/*! + * @brief Gets the RCM version ID. + * + * This function gets the RCM version ID including the major version number, + * the minor version number, and the feature specification number. + * + * @param base RCM peripheral base address. + * @param versionId Pointer to version ID structure. + */ +static inline void RCM_GetVersionId(RCM_Type *base, rcm_version_id_t *versionId) +{ + *((uint32_t *)versionId) = base->VERID; +} +#endif + +#if (defined(FSL_FEATURE_RCM_HAS_PARAM) && FSL_FEATURE_RCM_HAS_PARAM) +/*! + * @brief Gets the reset source implemented status. + * + * This function gets the RCM parameter that indicates whether the corresponding reset source is implemented. + * Use source masks defined in the rcm_reset_source_t to get the desired source status. + * + * Example: + @code + uint32_t status; + + // To test whether the MCU is reset using Watchdog. + status = RCM_GetResetSourceImplementedStatus(RCM) & (kRCM_SourceWdog | kRCM_SourcePin); + @endcode + * + * @param base RCM peripheral base address. + * @return All reset source implemented status bit map. + */ +static inline uint32_t RCM_GetResetSourceImplementedStatus(RCM_Type *base) +{ + return base->PARAM; +} +#endif /* FSL_FEATURE_RCM_HAS_PARAM */ + +/*! + * @brief Gets the reset source status which caused a previous reset. + * + * This function gets the current reset source status. Use source masks + * defined in the rcm_reset_source_t to get the desired source status. + * + * Example: + @code + uint32_t resetStatus; + + // To get all reset source statuses. + resetStatus = RCM_GetPreviousResetSources(RCM) & kRCM_SourceAll; + + // To test whether the MCU is reset using Watchdog. + resetStatus = RCM_GetPreviousResetSources(RCM) & kRCM_SourceWdog; + + // To test multiple reset sources. + resetStatus = RCM_GetPreviousResetSources(RCM) & (kRCM_SourceWdog | kRCM_SourcePin); + @endcode + * + * @param base RCM peripheral base address. + * @return All reset source status bit map. + */ +static inline uint32_t RCM_GetPreviousResetSources(RCM_Type *base) +{ +#if (defined(FSL_FEATURE_RCM_REG_WIDTH) && (FSL_FEATURE_RCM_REG_WIDTH == 32)) + return base->SRS; +#else + return (uint32_t)((uint32_t)base->SRS0 | ((uint32_t)base->SRS1 << 8U)); +#endif /* (FSL_FEATURE_RCM_REG_WIDTH == 32) */ +} + +#if (defined(FSL_FEATURE_RCM_HAS_SSRS) && FSL_FEATURE_RCM_HAS_SSRS) +/*! + * @brief Gets the sticky reset source status. + * + * This function gets the current reset source status that has not been cleared + * by software for some specific source. + * + * Example: + @code + uint32_t resetStatus; + + // To get all reset source statuses. + resetStatus = RCM_GetStickyResetSources(RCM) & kRCM_SourceAll; + + // To test whether the MCU is reset using Watchdog. + resetStatus = RCM_GetStickyResetSources(RCM) & kRCM_SourceWdog; + + // To test multiple reset sources. + resetStatus = RCM_GetStickyResetSources(RCM) & (kRCM_SourceWdog | kRCM_SourcePin); + @endcode + * + * @param base RCM peripheral base address. + * @return All reset source status bit map. + */ +static inline uint32_t RCM_GetStickyResetSources(RCM_Type *base) +{ +#if (defined(FSL_FEATURE_RCM_REG_WIDTH) && (FSL_FEATURE_RCM_REG_WIDTH == 32)) + return base->SSRS; +#else + return (base->SSRS0 | ((uint32_t)base->SSRS1 << 8U)); +#endif /* (FSL_FEATURE_RCM_REG_WIDTH == 32) */ +} + +/*! + * @brief Clears the sticky reset source status. + * + * This function clears the sticky system reset flags indicated by source masks. + * + * Example: + @code + // Clears multiple reset sources. + RCM_ClearStickyResetSources(kRCM_SourceWdog | kRCM_SourcePin); + @endcode + * + * @param base RCM peripheral base address. + * @param sourceMasks reset source status bit map + */ +static inline void RCM_ClearStickyResetSources(RCM_Type *base, uint32_t sourceMasks) +{ +#if (defined(FSL_FEATURE_RCM_REG_WIDTH) && (FSL_FEATURE_RCM_REG_WIDTH == 32)) + base->SSRS = sourceMasks; +#else + base->SSRS0 = (sourceMasks & 0xffU); + base->SSRS1 = ((sourceMasks >> 8U) & 0xffU); +#endif /* (FSL_FEATURE_RCM_REG_WIDTH == 32) */ +} +#endif /* FSL_FEATURE_RCM_HAS_SSRS */ + +/*! + * @brief Configures the reset pin filter. + * + * This function sets the reset pin filter including the filter source, filter + * width, and so on. + * + * @param base RCM peripheral base address. + * @param config Pointer to the configuration structure. + */ +void RCM_ConfigureResetPinFilter(RCM_Type *base, const rcm_reset_pin_filter_config_t *config); + +#if (defined(FSL_FEATURE_RCM_HAS_EZPMS) && FSL_FEATURE_RCM_HAS_EZPMS) +/*! + * @brief Gets the EZP_MS_B pin assert status. + * + * This function gets the easy port mode status (EZP_MS_B) pin assert status. + * + * @param base RCM peripheral base address. + * @return status true - asserted, false - reasserted + */ +static inline bool RCM_GetEasyPortModePinStatus(RCM_Type *base) +{ + return (bool)(base->MR & RCM_MR_EZP_MS_MASK); +} +#endif /* FSL_FEATURE_RCM_HAS_EZPMS */ + +#if (defined(FSL_FEATURE_RCM_HAS_BOOTROM) && FSL_FEATURE_RCM_HAS_BOOTROM) +/*! + * @brief Gets the ROM boot source. + * + * This function gets the ROM boot source during the last chip reset. + * + * @param base RCM peripheral base address. + * @return The ROM boot source. + */ +static inline rcm_boot_rom_config_t RCM_GetBootRomSource(RCM_Type *base) +{ + return (rcm_boot_rom_config_t)((base->MR & RCM_MR_BOOTROM_MASK) >> RCM_MR_BOOTROM_SHIFT); +} + +/*! + * @brief Clears the ROM boot source flag. + * + * This function clears the ROM boot source flag. + * + * @param base Register base address of RCM + */ +static inline void RCM_ClearBootRomSource(RCM_Type *base) +{ + base->MR |= RCM_MR_BOOTROM_MASK; +} + +/*! + * @brief Forces the boot from ROM. + * + * This function forces booting from ROM during all subsequent system resets. + * + * @param base RCM peripheral base address. + * @param config Boot configuration. + */ +void RCM_SetForceBootRomSource(RCM_Type *base, rcm_boot_rom_config_t config); +#endif /* FSL_FEATURE_RCM_HAS_BOOTROM */ + +#if (defined(FSL_FEATURE_RCM_HAS_SRIE) && FSL_FEATURE_RCM_HAS_SRIE) +/*! + * @brief Sets the system reset interrupt configuration. + * + * For a graceful shut down, the RCM supports delaying the assertion of the system + * reset for a period of time when the reset interrupt is generated. This function + * can be used to enable the interrupt and the delay period. The interrupts + * are passed in as bit mask. See rcm_int_t for details. For example, to + * delay a reset for 512 LPO cycles after the WDOG timeout or loss-of-clock occurs, + * configure as follows: + * RCM_SetSystemResetInterruptConfig(kRCM_IntWatchDog | kRCM_IntLossOfClk, kRCM_ResetDelay512Lpo); + * + * @param base RCM peripheral base address. + * @param intMask Bit mask of the system reset interrupts to enable. See + * rcm_interrupt_enable_t for details. + * @param Delay Bit mask of the system reset interrupts to enable. + */ +static inline void RCM_SetSystemResetInterruptConfig(RCM_Type *base, uint32_t intMask, rcm_reset_delay_t delay) +{ + base->SRIE = (intMask | delay); +} +#endif /* FSL_FEATURE_RCM_HAS_SRIE */ +/*@}*/ + +#if defined(__cplusplus) +} +#endif /* __cplusplus*/ + +/*! @}*/ + +#endif /* _FSL_RCM_H_ */ diff --git a/drivers/fsl_rtc.c b/drivers/fsl_rtc.c new file mode 100644 index 0000000..db6a2fa --- /dev/null +++ b/drivers/fsl_rtc.c @@ -0,0 +1,379 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_rtc.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ +#define SECONDS_IN_A_DAY (86400U) +#define SECONDS_IN_A_HOUR (3600U) +#define SECONDS_IN_A_MINUTE (60U) +#define DAYS_IN_A_YEAR (365U) +#define YEAR_RANGE_START (1970U) +#define YEAR_RANGE_END (2099U) + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Checks whether the date and time passed in is valid + * + * @param datetime Pointer to structure where the date and time details are stored + * + * @return Returns false if the date & time details are out of range; true if in range + */ +static bool RTC_CheckDatetimeFormat(const rtc_datetime_t *datetime); + +/*! + * @brief Converts time data from datetime to seconds + * + * @param datetime Pointer to datetime structure where the date and time details are stored + * + * @return The result of the conversion in seconds + */ +static uint32_t RTC_ConvertDatetimeToSeconds(const rtc_datetime_t *datetime); + +/*! + * @brief Converts time data from seconds to a datetime structure + * + * @param seconds Seconds value that needs to be converted to datetime format + * @param datetime Pointer to the datetime structure where the result of the conversion is stored + */ +static void RTC_ConvertSecondsToDatetime(uint32_t seconds, rtc_datetime_t *datetime); + +/******************************************************************************* + * Code + ******************************************************************************/ +static bool RTC_CheckDatetimeFormat(const rtc_datetime_t *datetime) +{ + assert(datetime); + + /* Table of days in a month for a non leap year. First entry in the table is not used, + * valid months start from 1 + */ + uint8_t daysPerMonth[] = {0U, 31U, 28U, 31U, 30U, 31U, 30U, 31U, 31U, 30U, 31U, 30U, 31U}; + + /* Check year, month, hour, minute, seconds */ + if ((datetime->year < YEAR_RANGE_START) || (datetime->year > YEAR_RANGE_END) || (datetime->month > 12U) || + (datetime->month < 1U) || (datetime->hour >= 24U) || (datetime->minute >= 60U) || (datetime->second >= 60U)) + { + /* If not correct then error*/ + return false; + } + + /* Adjust the days in February for a leap year */ + if ((((datetime->year & 3U) == 0) && (datetime->year % 100 != 0)) || (datetime->year % 400 == 0)) + { + daysPerMonth[2] = 29U; + } + + /* Check the validity of the day */ + if ((datetime->day > daysPerMonth[datetime->month]) || (datetime->day < 1U)) + { + return false; + } + + return true; +} + +static uint32_t RTC_ConvertDatetimeToSeconds(const rtc_datetime_t *datetime) +{ + assert(datetime); + + /* Number of days from begin of the non Leap-year*/ + /* Number of days from begin of the non Leap-year*/ + uint16_t monthDays[] = {0U, 0U, 31U, 59U, 90U, 120U, 151U, 181U, 212U, 243U, 273U, 304U, 334U}; + uint32_t seconds; + + /* Compute number of days from 1970 till given year*/ + seconds = (datetime->year - 1970U) * DAYS_IN_A_YEAR; + /* Add leap year days */ + seconds += ((datetime->year / 4) - (1970U / 4)); + /* Add number of days till given month*/ + seconds += monthDays[datetime->month]; + /* Add days in given month. We subtract the current day as it is + * represented in the hours, minutes and seconds field*/ + seconds += (datetime->day - 1); + /* For leap year if month less than or equal to Febraury, decrement day counter*/ + if ((!(datetime->year & 3U)) && (datetime->month <= 2U)) + { + seconds--; + } + + seconds = (seconds * SECONDS_IN_A_DAY) + (datetime->hour * SECONDS_IN_A_HOUR) + + (datetime->minute * SECONDS_IN_A_MINUTE) + datetime->second; + + return seconds; +} + +static void RTC_ConvertSecondsToDatetime(uint32_t seconds, rtc_datetime_t *datetime) +{ + assert(datetime); + + uint32_t x; + uint32_t secondsRemaining, days; + uint16_t daysInYear; + /* Table of days in a month for a non leap year. First entry in the table is not used, + * valid months start from 1 + */ + uint8_t daysPerMonth[] = {0U, 31U, 28U, 31U, 30U, 31U, 30U, 31U, 31U, 30U, 31U, 30U, 31U}; + + /* Start with the seconds value that is passed in to be converted to date time format */ + secondsRemaining = seconds; + + /* Calcuate the number of days, we add 1 for the current day which is represented in the + * hours and seconds field + */ + days = secondsRemaining / SECONDS_IN_A_DAY + 1; + + /* Update seconds left*/ + secondsRemaining = secondsRemaining % SECONDS_IN_A_DAY; + + /* Calculate the datetime hour, minute and second fields */ + datetime->hour = secondsRemaining / SECONDS_IN_A_HOUR; + secondsRemaining = secondsRemaining % SECONDS_IN_A_HOUR; + datetime->minute = secondsRemaining / 60U; + datetime->second = secondsRemaining % SECONDS_IN_A_MINUTE; + + /* Calculate year */ + daysInYear = DAYS_IN_A_YEAR; + datetime->year = YEAR_RANGE_START; + while (days > daysInYear) + { + /* Decrease day count by a year and increment year by 1 */ + days -= daysInYear; + datetime->year++; + + /* Adjust the number of days for a leap year */ + if (datetime->year & 3U) + { + daysInYear = DAYS_IN_A_YEAR; + } + else + { + daysInYear = DAYS_IN_A_YEAR + 1; + } + } + + /* Adjust the days in February for a leap year */ + if (!(datetime->year & 3U)) + { + daysPerMonth[2] = 29U; + } + + for (x = 1U; x <= 12U; x++) + { + if (days <= daysPerMonth[x]) + { + datetime->month = x; + break; + } + else + { + days -= daysPerMonth[x]; + } + } + + datetime->day = days; +} + +void RTC_Init(RTC_Type *base, const rtc_config_t *config) +{ + assert(config); + + uint32_t reg; + + CLOCK_EnableClock(kCLOCK_Rtc0); + + /* Issue a software reset if timer is invalid */ + if (RTC_GetStatusFlags(RTC) & kRTC_TimeInvalidFlag) + { + RTC_Reset(RTC); + } + + reg = base->CR; + /* Setup the update mode and supervisor access mode */ + reg &= ~(RTC_CR_UM_MASK | RTC_CR_SUP_MASK); + reg |= RTC_CR_UM(config->updateMode) | RTC_CR_SUP(config->supervisorAccess); +#if defined(FSL_FEATURE_RTC_HAS_WAKEUP_PIN_SELECTION) && FSL_FEATURE_RTC_HAS_WAKEUP_PIN_SELECTION + /* Setup the wakeup pin select */ + reg &= ~(RTC_CR_WPS_MASK); + reg |= RTC_CR_WPS(config->wakeupSelect); +#endif /* FSL_FEATURE_RTC_HAS_WAKEUP_PIN */ + base->CR = reg; + + /* Configure the RTC time compensation register */ + base->TCR = (RTC_TCR_CIR(config->compensationInterval) | RTC_TCR_TCR(config->compensationTime)); +} + +void RTC_GetDefaultConfig(rtc_config_t *config) +{ + assert(config); + + /* Wakeup pin will assert if the RTC interrupt asserts or if the wakeup pin is turned on */ + config->wakeupSelect = false; + /* Registers cannot be written when locked */ + config->updateMode = false; + /* Non-supervisor mode write accesses are not supported and will generate a bus error */ + config->supervisorAccess = false; + /* Compensation interval used by the crystal compensation logic */ + config->compensationInterval = 0; + /* Compensation time used by the crystal compensation logic */ + config->compensationTime = 0; +} + +status_t RTC_SetDatetime(RTC_Type *base, const rtc_datetime_t *datetime) +{ + assert(datetime); + + /* Return error if the time provided is not valid */ + if (!(RTC_CheckDatetimeFormat(datetime))) + { + return kStatus_InvalidArgument; + } + + /* Set time in seconds */ + base->TSR = RTC_ConvertDatetimeToSeconds(datetime); + + return kStatus_Success; +} + +void RTC_GetDatetime(RTC_Type *base, rtc_datetime_t *datetime) +{ + assert(datetime); + + uint32_t seconds = 0; + + seconds = base->TSR; + RTC_ConvertSecondsToDatetime(seconds, datetime); +} + +status_t RTC_SetAlarm(RTC_Type *base, const rtc_datetime_t *alarmTime) +{ + assert(alarmTime); + + uint32_t alarmSeconds = 0; + uint32_t currSeconds = 0; + + /* Return error if the alarm time provided is not valid */ + if (!(RTC_CheckDatetimeFormat(alarmTime))) + { + return kStatus_InvalidArgument; + } + + alarmSeconds = RTC_ConvertDatetimeToSeconds(alarmTime); + + /* Get the current time */ + currSeconds = base->TSR; + + /* Return error if the alarm time has passed */ + if (alarmSeconds < currSeconds) + { + return kStatus_Fail; + } + + /* Set alarm in seconds*/ + base->TAR = alarmSeconds; + + return kStatus_Success; +} + +void RTC_GetAlarm(RTC_Type *base, rtc_datetime_t *datetime) +{ + assert(datetime); + + uint32_t alarmSeconds = 0; + + /* Get alarm in seconds */ + alarmSeconds = base->TAR; + + RTC_ConvertSecondsToDatetime(alarmSeconds, datetime); +} + +void RTC_ClearStatusFlags(RTC_Type *base, uint32_t mask) +{ + /* The alarm flag is cleared by writing to the TAR register */ + if (mask & kRTC_AlarmFlag) + { + base->TAR = 0U; + } + + /* The timer overflow flag is cleared by initializing the TSR register. + * The time counter should be disabled for this write to be successful + */ + if (mask & kRTC_TimeOverflowFlag) + { + base->TSR = 1U; + } + + /* The timer overflow flag is cleared by initializing the TSR register. + * The time counter should be disabled for this write to be successful + */ + if (mask & kRTC_TimeInvalidFlag) + { + base->TSR = 1U; + } +} + +#if defined(FSL_FEATURE_RTC_HAS_MONOTONIC) && (FSL_FEATURE_RTC_HAS_MONOTONIC) + +void RTC_GetMonotonicCounter(RTC_Type *base, uint64_t *counter) +{ + assert(counter); + + *counter = (((uint64_t)base->MCHR << 32) | ((uint64_t)base->MCLR)); +} + +void RTC_SetMonotonicCounter(RTC_Type *base, uint64_t counter) +{ + /* Prepare to initialize the register with the new value written */ + base->MER &= ~RTC_MER_MCE_MASK; + + base->MCHR = (uint32_t)((counter) >> 32); + base->MCLR = (uint32_t)(counter); +} + +status_t RTC_IncrementMonotonicCounter(RTC_Type *base) +{ + if (base->SR & (RTC_SR_MOF_MASK | RTC_SR_TIF_MASK)) + { + return kStatus_Fail; + } + + /* Prepare to switch to increment mode */ + base->MER |= RTC_MER_MCE_MASK; + /* Write anything so the counter increments*/ + base->MCLR = 1U; + + return kStatus_Success; +} + +#endif /* FSL_FEATURE_RTC_HAS_MONOTONIC */ diff --git a/drivers/fsl_rtc.h b/drivers/fsl_rtc.h new file mode 100644 index 0000000..4357c2e --- /dev/null +++ b/drivers/fsl_rtc.h @@ -0,0 +1,412 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_RTC_H_ +#define _FSL_RTC_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup rtc + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +#define FSL_RTC_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) /*!< Version 2.0.0 */ +/*@}*/ + +/*! @brief List of RTC interrupts */ +typedef enum _rtc_interrupt_enable +{ + kRTC_TimeInvalidInterruptEnable = RTC_IER_TIIE_MASK, /*!< Time invalid interrupt.*/ + kRTC_TimeOverflowInterruptEnable = RTC_IER_TOIE_MASK, /*!< Time overflow interrupt.*/ + kRTC_AlarmInterruptEnable = RTC_IER_TAIE_MASK, /*!< Alarm interrupt.*/ + kRTC_SecondsInterruptEnable = RTC_IER_TSIE_MASK /*!< Seconds interrupt.*/ +} rtc_interrupt_enable_t; + +/*! @brief List of RTC flags */ +typedef enum _rtc_status_flags +{ + kRTC_TimeInvalidFlag = RTC_SR_TIF_MASK, /*!< Time invalid flag */ + kRTC_TimeOverflowFlag = RTC_SR_TOF_MASK, /*!< Time overflow flag */ + kRTC_AlarmFlag = RTC_SR_TAF_MASK /*!< Alarm flag*/ +} rtc_status_flags_t; + +#if (defined(FSL_FEATURE_RTC_HAS_OSC_SCXP) && FSL_FEATURE_RTC_HAS_OSC_SCXP) + +/*! @brief List of RTC Oscillator capacitor load settings */ +typedef enum _rtc_osc_cap_load +{ + kRTC_Capacitor_2p = RTC_CR_SC2P_MASK, /*!< 2pF capacitor load */ + kRTC_Capacitor_4p = RTC_CR_SC4P_MASK, /*!< 4pF capacitor load */ + kRTC_Capacitor_8p = RTC_CR_SC8P_MASK, /*!< 8pF capacitor load */ + kRTC_Capacitor_16p = RTC_CR_SC16P_MASK /*!< 16pF capacitor load */ +} rtc_osc_cap_load_t; + +#endif /* FSL_FEATURE_SCG_HAS_OSC_SCXP */ + +/*! @brief Structure is used to hold the date and time */ +typedef struct _rtc_datetime +{ + uint16_t year; /*!< Range from 1970 to 2099.*/ + uint8_t month; /*!< Range from 1 to 12.*/ + uint8_t day; /*!< Range from 1 to 31 (depending on month).*/ + uint8_t hour; /*!< Range from 0 to 23.*/ + uint8_t minute; /*!< Range from 0 to 59.*/ + uint8_t second; /*!< Range from 0 to 59.*/ +} rtc_datetime_t; + +/*! + * @brief RTC config structure + * + * This structure holds the configuration settings for the RTC peripheral. To initialize this + * structure to reasonable defaults, call the RTC_GetDefaultConfig() function and pass a + * pointer to your config structure instance. + * + * The config struct can be made const so it resides in flash + */ +typedef struct _rtc_config +{ + bool wakeupSelect; /*!< true: Wakeup pin outputs the 32 KHz clock; + false:Wakeup pin used to wakeup the chip */ + bool updateMode; /*!< true: Registers can be written even when locked under certain + conditions, false: No writes allowed when registers are locked */ + bool supervisorAccess; /*!< true: Non-supervisor accesses are allowed; + false: Non-supervisor accesses are not supported */ + uint32_t compensationInterval; /*!< Compensation interval that is written to the CIR field in RTC TCR Register */ + uint32_t compensationTime; /*!< Compensation time that is written to the TCR field in RTC TCR Register */ +} rtc_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name Initialization and deinitialization + * @{ + */ + +/*! + * @brief Ungates the RTC clock and configures the peripheral for basic operation. + * + * This function will issue a software reset if the timer invalid flag is set. + * + * @note This API should be called at the beginning of the application using the RTC driver. + * + * @param base RTC peripheral base address + * @param config Pointer to user's RTC config structure. + */ +void RTC_Init(RTC_Type *base, const rtc_config_t *config); + +/*! + * @brief Stop the timer and gate the RTC clock + * + * @param base RTC peripheral base address + */ +static inline void RTC_Deinit(RTC_Type *base) +{ + /* Stop the RTC timer */ + base->SR &= ~RTC_SR_TCE_MASK; + + /* Gate the module clock */ + CLOCK_DisableClock(kCLOCK_Rtc0); +} + +/*! + * @brief Fill in the RTC config struct with the default settings + * + * The default values are: + * @code + * config->wakeupSelect = false; + * config->updateMode = false; + * config->supervisorAccess = false; + * config->compensationInterval = 0; + * config->compensationTime = 0; + * @endcode + * @param config Pointer to user's RTC config structure. + */ +void RTC_GetDefaultConfig(rtc_config_t *config); + +/*! @}*/ + +/*! + * @name Current Time & Alarm + * @{ + */ + +/*! + * @brief Sets the RTC date and time according to the given time structure. + * + * The RTC counter must be stopped prior to calling this function as writes to the RTC + * seconds register will fail if the RTC counter is running. + * + * @param base RTC peripheral base address + * @param datetime Pointer to structure where the date and time details to set are stored + * + * @return kStatus_Success: Success in setting the time and starting the RTC + * kStatus_InvalidArgument: Error because the datetime format is incorrect + */ +status_t RTC_SetDatetime(RTC_Type *base, const rtc_datetime_t *datetime); + +/*! + * @brief Gets the RTC time and stores it in the given time structure. + * + * @param base RTC peripheral base address + * @param datetime Pointer to structure where the date and time details are stored. + */ +void RTC_GetDatetime(RTC_Type *base, rtc_datetime_t *datetime); + +/*! + * @brief Sets the RTC alarm time + * + * The function checks whether the specified alarm time is greater than the present + * time. If not, the function does not set the alarm and returns an error. + * + * @param base RTC peripheral base address + * @param alarmTime Pointer to structure where the alarm time is stored. + * + * @return kStatus_Success: success in setting the RTC alarm + * kStatus_InvalidArgument: Error because the alarm datetime format is incorrect + * kStatus_Fail: Error because the alarm time has already passed + */ +status_t RTC_SetAlarm(RTC_Type *base, const rtc_datetime_t *alarmTime); + +/*! + * @brief Returns the RTC alarm time. + * + * @param base RTC peripheral base address + * @param datetime Pointer to structure where the alarm date and time details are stored. + */ +void RTC_GetAlarm(RTC_Type *base, rtc_datetime_t *datetime); + +/*! @}*/ + +/*! + * @name Interrupt Interface + * @{ + */ + +/*! + * @brief Enables the selected RTC interrupts. + * + * @param base RTC peripheral base address + * @param mask The interrupts to enable. This is a logical OR of members of the + * enumeration ::rtc_interrupt_enable_t + */ +static inline void RTC_EnableInterrupts(RTC_Type *base, uint32_t mask) +{ + base->IER |= mask; +} + +/*! + * @brief Disables the selected RTC interrupts. + * + * @param base RTC peripheral base address + * @param mask The interrupts to enable. This is a logical OR of members of the + * enumeration ::rtc_interrupt_enable_t + */ +static inline void RTC_DisableInterrupts(RTC_Type *base, uint32_t mask) +{ + base->IER &= ~mask; +} + +/*! + * @brief Gets the enabled RTC interrupts. + * + * @param base RTC peripheral base address + * + * @return The enabled interrupts. This is the logical OR of members of the + * enumeration ::rtc_interrupt_enable_t + */ +static inline uint32_t RTC_GetEnabledInterrupts(RTC_Type *base) +{ + return (base->IER & (RTC_IER_TIIE_MASK | RTC_IER_TOIE_MASK | RTC_IER_TAIE_MASK | RTC_IER_TSIE_MASK)); +} + +/*! @}*/ + +/*! + * @name Status Interface + * @{ + */ + +/*! + * @brief Gets the RTC status flags + * + * @param base RTC peripheral base address + * + * @return The status flags. This is the logical OR of members of the + * enumeration ::rtc_status_flags_t + */ +static inline uint32_t RTC_GetStatusFlags(RTC_Type *base) +{ + return (base->SR & (RTC_SR_TIF_MASK | RTC_SR_TOF_MASK | RTC_SR_TAF_MASK)); +} + +/*! + * @brief Clears the RTC status flags. + * + * @param base RTC peripheral base address + * @param mask The status flags to clear. This is a logical OR of members of the + * enumeration ::rtc_status_flags_t + */ +void RTC_ClearStatusFlags(RTC_Type *base, uint32_t mask); + +/*! @}*/ + +/*! + * @name Timer Start and Stop + * @{ + */ + +/*! + * @brief Starts the RTC time counter. + * + * After calling this function, the timer counter increments once a second provided SR[TOF] or + * SR[TIF] are not set. + * + * @param base RTC peripheral base address + */ +static inline void RTC_StartTimer(RTC_Type *base) +{ + base->SR |= RTC_SR_TCE_MASK; +} + +/*! + * @brief Stops the RTC time counter. + * + * RTC's seconds register can be written to only when the timer is stopped. + * + * @param base RTC peripheral base address + */ +static inline void RTC_StopTimer(RTC_Type *base) +{ + base->SR &= ~RTC_SR_TCE_MASK; +} + +/*! @}*/ + +#if (defined(FSL_FEATURE_RTC_HAS_OSC_SCXP) && FSL_FEATURE_RTC_HAS_OSC_SCXP) + +/*! + * @brief This function sets the specified capacitor configuration for the RTC oscillator. + * + * @param base RTC peripheral base address + * @param capLoad Oscillator loads to enable. This is a logical OR of members of the + * enumeration ::rtc_osc_cap_load_t + */ +static inline void RTC_SetOscCapLoad(RTC_Type *base, uint32_t capLoad) +{ + uint32_t reg = base->CR; + + reg &= ~(RTC_CR_SC2P_MASK | RTC_CR_SC4P_MASK | RTC_CR_SC8P_MASK | RTC_CR_SC16P_MASK); + reg |= capLoad; + + base->CR = reg; +} + +#endif /* FSL_FEATURE_SCG_HAS_OSC_SCXP */ + +/*! + * @brief Performs a software reset on the RTC module. + * + * This resets all RTC registers except for the SWR bit and the RTC_WAR and RTC_RAR + * registers. The SWR bit is cleared by software explicitly clearing it. + * + * @param base RTC peripheral base address + */ +static inline void RTC_Reset(RTC_Type *base) +{ + base->CR |= RTC_CR_SWR_MASK; + base->CR &= ~RTC_CR_SWR_MASK; + + /* Set TSR register to 0x1 to avoid the timer invalid (TIF) bit being set in the SR register */ + base->TSR = 1U; +} + +#if defined(FSL_FEATURE_RTC_HAS_MONOTONIC) && (FSL_FEATURE_RTC_HAS_MONOTONIC) + +/*! + * @name Monotonic counter functions + * @{ + */ + +/*! + * @brief Reads the values of the Monotonic Counter High and Monotonic Counter Low and returns + * them as a single value. + * + * @param base RTC peripheral base address + * @param counter Pointer to variable where the value is stored. + */ +void RTC_GetMonotonicCounter(RTC_Type *base, uint64_t *counter); + +/*! + * @brief Writes values Monotonic Counter High and Monotonic Counter Low by decomposing + * the given single value. + * + * @param base RTC peripheral base address + * @param counter Counter value + */ +void RTC_SetMonotonicCounter(RTC_Type *base, uint64_t counter); + +/*! + * @brief Increments the Monotonic Counter by one. + * + * Increments the Monotonic Counter (registers RTC_MCLR and RTC_MCHR accordingly) by setting + * the monotonic counter enable (MER[MCE]) and then writing to the RTC_MCLR register. A write to the + * monotonic counter low that causes it to overflow also increments the monotonic counter high. + * + * @param base RTC peripheral base address + * + * @return kStatus_Success: success + * kStatus_Fail: error occurred, either time invalid or monotonic overflow flag was found + */ +status_t RTC_IncrementMonotonicCounter(RTC_Type *base); + +/*! @}*/ + +#endif /* FSL_FEATURE_RTC_HAS_MONOTONIC */ + +#if defined(__cplusplus) +} +#endif + +/*! @}*/ + +#endif /* _FSL_RTC_H_ */ diff --git a/drivers/fsl_sai.c b/drivers/fsl_sai.c new file mode 100644 index 0000000..c38165e --- /dev/null +++ b/drivers/fsl_sai.c @@ -0,0 +1,1066 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_sai.h" + +/******************************************************************************* + * Definitations + ******************************************************************************/ +enum _sai_transfer_state +{ + kSAI_Busy = 0x0U, /*!< SAI is busy */ + kSAI_Idle, /*!< Transfer is done. */ + kSAI_Error /*!< Transfer error occured. */ +}; + +/*! @brief Typedef for sai tx interrupt handler. */ +typedef void (*sai_tx_isr_t)(I2S_Type *base, sai_handle_t *saiHandle); + +/*! @brief Typedef for sai rx interrupt handler. */ +typedef void (*sai_rx_isr_t)(I2S_Type *base, sai_handle_t *saiHandle); + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +#if defined(FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER) && (FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER) + +/*! + * @brief Set the master clock divider. + * + * This API will compute the master clock divider according to master clock frequency and master + * clock source clock source frequency. + * + * @param base SAI base pointer. + * @param mclk_Hz Mater clock frequency in Hz. + * @param mclkSrcClock_Hz Master clock source frequency in Hz. + */ +static void SAI_SetMasterClockDivider(I2S_Type *base, uint32_t mclk_Hz, uint32_t mclkSrcClock_Hz); +#endif /* FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER */ + +/*! + * @brief Get the instance number for SAI. + * + * @param base SAI base pointer. + */ +uint32_t SAI_GetInstance(I2S_Type *base); + +/*! + * @brief sends a piece of data in non-blocking way. + * + * @param base SAI base pointer + * @param channel Data channel used. + * @param bitWidth How many bits in a audio word, usually 8/16/24/32 bits. + * @param buffer Pointer to the data to be written. + * @param size Bytes to be written. + */ +static void SAI_WriteNonBlocking(I2S_Type *base, uint32_t channel, uint32_t bitWidth, uint8_t *buffer, uint32_t size); + +/*! + * @brief Receive a piece of data in non-blocking way. + * + * @param base SAI base pointer + * @param channel Data channel used. + * @param bitWidth How many bits in a audio word, usually 8/16/24/32 bits. + * @param buffer Pointer to the data to be read. + * @param size Bytes to be read. + */ +static void SAI_ReadNonBlocking(I2S_Type *base, uint32_t channel, uint32_t bitWidth, uint8_t *buffer, uint32_t size); +/******************************************************************************* + * Variables + ******************************************************************************/ +/*!@brief SAI handle pointer */ +sai_handle_t *s_saiHandle[FSL_FEATURE_SOC_I2S_COUNT][2]; +/* Base pointer array */ +static I2S_Type *const s_saiBases[] = I2S_BASE_PTRS; +/* IRQ number array */ +static const IRQn_Type s_saiTxIRQ[] = I2S_TX_IRQS; +static const IRQn_Type s_saiRxIRQ[] = I2S_RX_IRQS; +/* Clock name array */ +static const clock_ip_name_t s_saiClock[] = SAI_CLOCKS; +/*! @brief Pointer to tx IRQ handler for each instance. */ +static sai_tx_isr_t s_saiTxIsr; +/*! @brief Pointer to tx IRQ handler for each instance. */ +static sai_rx_isr_t s_saiRxIsr; + +/******************************************************************************* + * Code + ******************************************************************************/ +#if defined(FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER) && (FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER) +static void SAI_SetMasterClockDivider(I2S_Type *base, uint32_t mclk_Hz, uint32_t mclkSrcClock_Hz) +{ + uint32_t freq = mclkSrcClock_Hz; + uint16_t fract, divide; + uint32_t remaind = 0; + uint32_t current_remainder = 0xFFFFFFFFU; + uint16_t current_fract = 0; + uint16_t current_divide = 0; + uint32_t mul_freq = 0; + uint32_t max_fract = 256; + + /*In order to prevent overflow */ + freq /= 100; + mclk_Hz /= 100; + + /* Compute the max fract number */ + max_fract = mclk_Hz * 4096 / freq + 1; + if (max_fract > 256) + { + max_fract = 256; + } + + /* Looking for the closet frequency */ + for (fract = 1; fract < max_fract; fract++) + { + mul_freq = freq * fract; + remaind = mul_freq % mclk_Hz; + divide = mul_freq / mclk_Hz; + + /* Find the exactly frequency */ + if (remaind == 0) + { + current_fract = fract; + current_divide = mul_freq / mclk_Hz; + break; + } + + /* Closer to next one, set the closest to next data */ + if (remaind > mclk_Hz / 2) + { + remaind = mclk_Hz - remaind; + divide += 1; + } + + /* Update the closest div and fract */ + if (remaind < current_remainder) + { + current_fract = fract; + current_divide = divide; + current_remainder = remaind; + } + } + + /* Fill the computed fract and divider to registers */ + base->MDR = I2S_MDR_DIVIDE(current_divide - 1) | I2S_MDR_FRACT(current_fract - 1); + + /* Waiting for the divider updated */ + while (base->MCR & I2S_MCR_DUF_MASK) + { + } +} +#endif /* FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER */ + +uint32_t SAI_GetInstance(I2S_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_I2S_COUNT; instance++) + { + if (s_saiBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_I2S_COUNT); + + return instance; +} + +static void SAI_WriteNonBlocking(I2S_Type *base, uint32_t channel, uint32_t bitWidth, uint8_t *buffer, uint32_t size) +{ + uint32_t i = 0; + uint8_t j = 0; + uint8_t bytesPerWord = bitWidth / 8U; + uint32_t data = 0; + uint32_t temp = 0; + + for (i = 0; i < size / bytesPerWord; i++) + { + for (j = 0; j < bytesPerWord; j++) + { + temp = (uint32_t)(*buffer); + data |= (temp << (8U * j)); + buffer++; + } + base->TDR[channel] = data; + data = 0; + } +} + +static void SAI_ReadNonBlocking(I2S_Type *base, uint32_t channel, uint32_t bitWidth, uint8_t *buffer, uint32_t size) +{ + uint32_t i = 0; + uint8_t j = 0; + uint8_t bytesPerWord = bitWidth / 8U; + uint32_t data = 0; + + for (i = 0; i < size / bytesPerWord; i++) + { + data = base->RDR[channel]; + for (j = 0; j < bytesPerWord; j++) + { + *buffer = (data >> (8U * j)) & 0xFF; + buffer++; + } + } +} + +void SAI_TxInit(I2S_Type *base, const sai_config_t *config) +{ + uint32_t val = 0; + + /* Enable the SAI clock */ + CLOCK_EnableClock(s_saiClock[SAI_GetInstance(base)]); + +#if defined(FSL_FEATURE_SAI_HAS_MCR) && (FSL_FEATURE_SAI_HAS_MCR) + /* Master clock source setting */ + val = (base->MCR & ~I2S_MCR_MICS_MASK); + base->MCR = (val | I2S_MCR_MICS(config->mclkSource)); + + /* Configure Master clock output enable */ + val = (base->MCR & ~I2S_MCR_MOE_MASK); + base->MCR = (val | I2S_MCR_MOE(config->mclkOutputEnable)); +#endif /* FSL_FEATURE_SAI_HAS_MCR */ + + /* Configure audio protocol */ + switch (config->protocol) + { + case kSAI_BusLeftJustified: + base->TCR2 |= I2S_TCR2_BCP_MASK; + base->TCR3 &= ~I2S_TCR3_WDFL_MASK; + base->TCR4 = I2S_TCR4_MF(1U) | I2S_TCR4_SYWD(31U) | I2S_TCR4_FSE(0U) | I2S_TCR4_FSP(0U) | I2S_TCR4_FRSZ(1U); + break; + + case kSAI_BusRightJustified: + base->TCR2 |= I2S_TCR2_BCP_MASK; + base->TCR3 &= ~I2S_TCR3_WDFL_MASK; + base->TCR4 = I2S_TCR4_MF(1U) | I2S_TCR4_SYWD(31U) | I2S_TCR4_FSE(0U) | I2S_TCR4_FSP(0U) | I2S_TCR4_FRSZ(1U); + break; + + case kSAI_BusI2S: + base->TCR2 |= I2S_TCR2_BCP_MASK; + base->TCR3 &= ~I2S_TCR3_WDFL_MASK; + base->TCR4 = I2S_TCR4_MF(1U) | I2S_TCR4_SYWD(31U) | I2S_TCR4_FSE(1U) | I2S_TCR4_FSP(1U) | I2S_TCR4_FRSZ(1U); + break; + + case kSAI_BusPCMA: + base->TCR2 &= ~I2S_TCR2_BCP_MASK; + base->TCR3 &= ~I2S_TCR3_WDFL_MASK; + base->TCR4 = I2S_TCR4_MF(1U) | I2S_TCR4_SYWD(0U) | I2S_TCR4_FSE(1U) | I2S_TCR4_FSP(0U) | I2S_TCR4_FRSZ(1U); + break; + + case kSAI_BusPCMB: + base->TCR2 &= ~I2S_TCR2_BCP_MASK; + base->TCR3 &= ~I2S_TCR3_WDFL_MASK; + base->TCR4 = I2S_TCR4_MF(1U) | I2S_TCR4_SYWD(0U) | I2S_TCR4_FSE(0U) | I2S_TCR4_FSP(0U) | I2S_TCR4_FRSZ(1U); + break; + + default: + break; + } + + /* Set master or slave */ + if (config->masterSlave == kSAI_Master) + { + base->TCR2 |= I2S_TCR2_BCD_MASK; + base->TCR4 |= I2S_TCR4_FSD_MASK; + + /* Bit clock source setting */ + val = base->TCR2 & (~I2S_TCR2_MSEL_MASK); + base->TCR2 = (val | I2S_TCR2_MSEL(config->bclkSource)); + } + else + { + base->TCR2 &= ~I2S_TCR2_BCD_MASK; + base->TCR4 &= ~I2S_TCR4_FSD_MASK; + } + + /* Set Sync mode */ + switch (config->syncMode) + { + case kSAI_ModeAsync: + val = base->TCR2; + val &= ~I2S_TCR2_SYNC_MASK; + base->TCR2 = (val | I2S_TCR2_SYNC(0U)); + break; + case kSAI_ModeSync: + val = base->TCR2; + val &= ~I2S_TCR2_SYNC_MASK; + base->TCR2 = (val | I2S_TCR2_SYNC(1U)); + /* If sync with Rx, should set Rx to async mode */ + val = base->RCR2; + val &= ~I2S_RCR2_SYNC_MASK; + base->RCR2 = (val | I2S_RCR2_SYNC(0U)); + break; + case kSAI_ModeSyncWithOtherTx: + val = base->TCR2; + val &= ~I2S_TCR2_SYNC_MASK; + base->TCR2 = (val | I2S_TCR2_SYNC(2U)); + break; + case kSAI_ModeSyncWithOtherRx: + val = base->TCR2; + val &= ~I2S_TCR2_SYNC_MASK; + base->TCR2 = (val | I2S_TCR2_SYNC(3U)); + break; + default: + break; + } +} + +void SAI_RxInit(I2S_Type *base, const sai_config_t *config) +{ + uint32_t val = 0; + + /* Enable SAI clock first. */ + CLOCK_EnableClock(s_saiClock[SAI_GetInstance(base)]); + +#if defined(FSL_FEATURE_SAI_HAS_MCR) && (FSL_FEATURE_SAI_HAS_MCR) + /* Master clock source setting */ + val = (base->MCR & ~I2S_MCR_MICS_MASK); + base->MCR = (val | I2S_MCR_MICS(config->mclkSource)); + + /* Configure Master clock output enable */ + val = (base->MCR & ~I2S_MCR_MOE_MASK); + base->MCR = (val | I2S_MCR_MOE(config->mclkOutputEnable)); +#endif /* FSL_FEATURE_SAI_HAS_MCR */ + + /* Configure audio protocol */ + switch (config->protocol) + { + case kSAI_BusLeftJustified: + base->RCR2 |= I2S_RCR2_BCP_MASK; + base->RCR3 &= ~I2S_RCR3_WDFL_MASK; + base->RCR4 = I2S_RCR4_MF(1U) | I2S_RCR4_SYWD(31U) | I2S_RCR4_FSE(0U) | I2S_RCR4_FSP(0U) | I2S_RCR4_FRSZ(1U); + break; + + case kSAI_BusRightJustified: + base->RCR2 |= I2S_RCR2_BCP_MASK; + base->RCR3 &= ~I2S_RCR3_WDFL_MASK; + base->RCR4 = I2S_RCR4_MF(1U) | I2S_RCR4_SYWD(31U) | I2S_RCR4_FSE(0U) | I2S_RCR4_FSP(0U) | I2S_RCR4_FRSZ(1U); + break; + + case kSAI_BusI2S: + base->RCR2 |= I2S_RCR2_BCP_MASK; + base->RCR3 &= ~I2S_RCR3_WDFL_MASK; + base->RCR4 = I2S_RCR4_MF(1U) | I2S_RCR4_SYWD(31U) | I2S_RCR4_FSE(1U) | I2S_RCR4_FSP(1U) | I2S_RCR4_FRSZ(1U); + break; + + case kSAI_BusPCMA: + base->RCR2 &= ~I2S_RCR2_BCP_MASK; + base->RCR3 &= ~I2S_RCR3_WDFL_MASK; + base->RCR4 = I2S_RCR4_MF(1U) | I2S_RCR4_SYWD(0U) | I2S_RCR4_FSE(1U) | I2S_RCR4_FSP(0U) | I2S_RCR4_FRSZ(1U); + break; + + case kSAI_BusPCMB: + base->RCR2 &= ~I2S_RCR2_BCP_MASK; + base->RCR3 &= ~I2S_RCR3_WDFL_MASK; + base->RCR4 = I2S_RCR4_MF(1U) | I2S_RCR4_SYWD(0U) | I2S_RCR4_FSE(0U) | I2S_RCR4_FSP(0U) | I2S_RCR4_FRSZ(1U); + break; + + default: + break; + } + + /* Set master or slave */ + if (config->masterSlave == kSAI_Master) + { + base->RCR2 |= I2S_RCR2_BCD_MASK; + base->RCR4 |= I2S_RCR4_FSD_MASK; + + /* Bit clock source setting */ + val = base->RCR2 & (~I2S_RCR2_MSEL_MASK); + base->RCR2 = (val | I2S_RCR2_MSEL(config->bclkSource)); + } + else + { + base->RCR2 &= ~I2S_RCR2_BCD_MASK; + base->RCR4 &= ~I2S_RCR4_FSD_MASK; + } + + /* Set Sync mode */ + switch (config->syncMode) + { + case kSAI_ModeAsync: + val = base->RCR2; + val &= ~I2S_RCR2_SYNC_MASK; + base->RCR2 = (val | I2S_RCR2_SYNC(0U)); + break; + case kSAI_ModeSync: + val = base->RCR2; + val &= ~I2S_RCR2_SYNC_MASK; + base->RCR2 = (val | I2S_RCR2_SYNC(1U)); + /* If sync with Tx, should set Tx to async mode */ + val = base->TCR2; + val &= ~I2S_TCR2_SYNC_MASK; + base->TCR2 = (val | I2S_TCR2_SYNC(0U)); + break; + case kSAI_ModeSyncWithOtherTx: + val = base->RCR2; + val &= ~I2S_RCR2_SYNC_MASK; + base->RCR2 = (val | I2S_RCR2_SYNC(2U)); + break; + case kSAI_ModeSyncWithOtherRx: + val = base->RCR2; + val &= ~I2S_RCR2_SYNC_MASK; + base->RCR2 = (val | I2S_RCR2_SYNC(3U)); + break; + default: + break; + } +} + +void SAI_Deinit(I2S_Type *base) +{ + SAI_TxEnable(base, false); + SAI_RxEnable(base, false); + CLOCK_DisableClock(s_saiClock[SAI_GetInstance(base)]); +} + +void SAI_TxGetDefaultConfig(sai_config_t *config) +{ + config->bclkSource = kSAI_BclkSourceMclkDiv; + config->masterSlave = kSAI_Master; + config->mclkSource = kSAI_MclkSourceSysclk; + config->protocol = kSAI_BusLeftJustified; + config->syncMode = kSAI_ModeAsync; +#if defined(FSL_FEATURE_SAI_HAS_MCR) && (FSL_FEATURE_SAI_HAS_MCR) + config->mclkOutputEnable = true; +#endif /* FSL_FEATURE_SAI_HAS_MCR */ +} + +void SAI_RxGetDefaultConfig(sai_config_t *config) +{ + config->bclkSource = kSAI_BclkSourceMclkDiv; + config->masterSlave = kSAI_Master; + config->mclkSource = kSAI_MclkSourceSysclk; + config->protocol = kSAI_BusLeftJustified; + config->syncMode = kSAI_ModeSync; +#if defined(FSL_FEATURE_SAI_HAS_MCR) && (FSL_FEATURE_SAI_HAS_MCR) + config->mclkOutputEnable = true; +#endif /* FSL_FEATURE_SAI_HAS_MCR */ +} + +void SAI_TxReset(I2S_Type *base) +{ + /* Set the software reset and FIFO reset to clear internal state */ + base->TCSR = I2S_TCSR_SR_MASK | I2S_TCSR_FR_MASK; + + /* Clear software reset bit, this should be done by software */ + base->TCSR &= ~I2S_TCSR_SR_MASK; + + /* Reset all Tx register values */ + base->TCR2 = 0; + base->TCR3 = 0; + base->TCR4 = 0; + base->TCR5 = 0; + base->TMR = 0; +} + +void SAI_RxReset(I2S_Type *base) +{ + /* Set the software reset and FIFO reset to clear internal state */ + base->RCSR = I2S_RCSR_SR_MASK | I2S_RCSR_FR_MASK; + + /* Clear software reset bit, this should be done by software */ + base->RCSR &= ~I2S_RCSR_SR_MASK; + + /* Reset all Rx register values */ + base->RCR2 = 0; + base->RCR3 = 0; + base->RCR4 = 0; + base->RCR5 = 0; + base->RMR = 0; +} + +void SAI_TxEnable(I2S_Type *base, bool enable) +{ + if (enable) + { + /* If clock is sync with Rx, should enable RE bit. */ + if (((base->TCR2 & I2S_TCR2_SYNC_MASK) >> I2S_TCR2_SYNC_SHIFT) == 0x1U) + { + base->RCSR = ((base->RCSR & 0xFFE3FFFFU) | I2S_RCSR_RE_MASK); + } + base->TCSR = ((base->TCSR & 0xFFE3FFFFU) | I2S_TCSR_TE_MASK); + } + else + { + /* Should not close RE even sync with Rx */ + base->TCSR = ((base->TCSR & 0xFFE3FFFFU) & (~I2S_TCSR_TE_MASK)); + } +} + +void SAI_RxEnable(I2S_Type *base, bool enable) +{ + if (enable) + { + /* If clock is sync with Tx, should enable TE bit. */ + if (((base->RCR2 & I2S_RCR2_SYNC_MASK) >> I2S_RCR2_SYNC_SHIFT) == 0x1U) + { + base->TCSR = ((base->TCSR & 0xFFE3FFFFU) | I2S_TCSR_TE_MASK); + } + base->RCSR = ((base->RCSR & 0xFFE3FFFFU) | I2S_RCSR_RE_MASK); + } + else + { + base->RCSR = ((base->RCSR & 0xFFE3FFFFU) & (~I2S_RCSR_RE_MASK)); + } +} + +void SAI_TxSetFormat(I2S_Type *base, + sai_transfer_format_t *format, + uint32_t mclkSourceClockHz, + uint32_t bclkSourceClockHz) +{ + uint32_t bclk = format->sampleRate_Hz * 32U * 2U; + +/* Compute the mclk */ +#if defined(FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER) && (FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER) + /* Check if master clock divider enabled, then set master clock divider */ + if (base->MCR & I2S_MCR_MOE_MASK) + { + SAI_SetMasterClockDivider(base, format->masterClockHz, mclkSourceClockHz); + } +#endif /* FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER */ + + /* Set bclk if needed */ + if (base->TCR2 & I2S_TCR2_BCD_MASK) + { + base->TCR2 &= ~I2S_TCR2_DIV_MASK; + base->TCR2 |= I2S_TCR2_DIV((bclkSourceClockHz / bclk) / 2U - 1U); + } + + /* Set bitWidth */ + if (format->protocol == kSAI_BusRightJustified) + { + base->TCR5 = I2S_TCR5_WNW(31U) | I2S_TCR5_W0W(31U) | I2S_TCR5_FBT(31U); + } + else + { + base->TCR5 = I2S_TCR5_WNW(31U) | I2S_TCR5_W0W(31U) | I2S_TCR5_FBT(format->bitWidth - 1); + } + + /* Set mono or stereo */ + base->TMR = (uint32_t)format->stereo; + + /* Set data channel */ + base->TCR3 &= ~I2S_TCR3_TCE_MASK; + base->TCR3 |= I2S_TCR3_TCE(1U << format->channel); + +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + /* Set watermark */ + base->TCR1 = format->watermark; +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ +} + +void SAI_RxSetFormat(I2S_Type *base, + sai_transfer_format_t *format, + uint32_t mclkSourceClockHz, + uint32_t bclkSourceClockHz) +{ + uint32_t bclk = format->sampleRate_Hz * 32U * 2U; + +/* Compute the mclk */ +#if defined(FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER) && (FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER) + /* Check if master clock divider enabled */ + if (base->MCR & I2S_MCR_MOE_MASK) + { + SAI_SetMasterClockDivider(base, format->masterClockHz, mclkSourceClockHz); + } +#endif /* FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER */ + + /* Set bclk if needed */ + if (base->RCR2 & I2S_RCR2_BCD_MASK) + { + base->RCR2 &= ~I2S_RCR2_DIV_MASK; + base->RCR2 |= I2S_RCR2_DIV((bclkSourceClockHz / bclk) / 2U - 1U); + } + + /* Set bitWidth */ + if (format->protocol == kSAI_BusRightJustified) + { + base->RCR5 = I2S_RCR5_WNW(31U) | I2S_RCR5_W0W(31U) | I2S_RCR5_FBT(31U); + } + else + { + base->RCR5 = I2S_RCR5_WNW(31U) | I2S_RCR5_W0W(31U) | I2S_RCR5_FBT(format->bitWidth - 1); + } + + /* Set mono or stereo */ + base->RMR = (uint32_t)format->stereo; + + /* Set data channel */ + base->RCR3 &= ~I2S_RCR3_RCE_MASK; + base->RCR3 |= I2S_RCR3_RCE(1U << format->channel); + +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + /* Set watermark */ + base->RCR1 = format->watermark; +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ +} + +void SAI_WriteBlocking(I2S_Type *base, uint32_t channel, uint32_t bitWidth, uint8_t *buffer, uint32_t size) +{ + uint32_t i = 0; + uint8_t bytesPerWord = bitWidth / 8U; + + for (i = 0; i < size; i++) + { + /* Wait until it can write data */ + while (!(base->TCSR & I2S_TCSR_FWF_MASK)) + { + } + + SAI_WriteNonBlocking(base, channel, bitWidth, buffer, bytesPerWord); + buffer += bytesPerWord; + } + + /* Wait until the last data is sent */ + while (!(base->TCSR & I2S_TCSR_FWF_MASK)) + { + } +} + +void SAI_ReadBlocking(I2S_Type *base, uint32_t channel, uint32_t bitWidth, uint8_t *buffer, uint32_t size) +{ + uint32_t i = 0; + uint8_t bytesPerWord = bitWidth / 8U; + + for (i = 0; i < size; i++) + { + /* Wait until data is received */ + while (!(base->RCSR & I2S_RCSR_FWF_MASK)) + { + } + + SAI_ReadNonBlocking(base, channel, bitWidth, buffer, bytesPerWord); + buffer += bytesPerWord; + } +} + +void SAI_TransferTxCreateHandle(I2S_Type *base, sai_handle_t *handle, sai_transfer_callback_t callback, void *userData) +{ + assert(handle); + + s_saiHandle[SAI_GetInstance(base)][0] = handle; + + handle->callback = callback; + handle->userData = userData; + + /* Set the isr pointer */ + s_saiTxIsr = SAI_TransferTxHandleIRQ; + + /* Enable Tx irq */ + EnableIRQ(s_saiTxIRQ[SAI_GetInstance(base)]); +} + +void SAI_TransferRxCreateHandle(I2S_Type *base, sai_handle_t *handle, sai_transfer_callback_t callback, void *userData) +{ + assert(handle); + + s_saiHandle[SAI_GetInstance(base)][1] = handle; + + handle->callback = callback; + handle->userData = userData; + + /* Set the isr pointer */ + s_saiRxIsr = SAI_TransferRxHandleIRQ; + + /* Enable Rx irq */ + EnableIRQ(s_saiRxIRQ[SAI_GetInstance(base)]); +} + +status_t SAI_TransferTxSetFormat(I2S_Type *base, + sai_handle_t *handle, + sai_transfer_format_t *format, + uint32_t mclkSourceClockHz, + uint32_t bclkSourceClockHz) +{ + assert(handle); + + if ((mclkSourceClockHz < format->sampleRate_Hz) || (bclkSourceClockHz < format->sampleRate_Hz)) + { + return kStatus_InvalidArgument; + } + + /* Copy format to handle */ + handle->bitWidth = format->bitWidth; +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + handle->watermark = format->watermark; +#endif + handle->channel = format->channel; + + SAI_TxSetFormat(base, format, mclkSourceClockHz, bclkSourceClockHz); + + return kStatus_Success; +} + +status_t SAI_TransferRxSetFormat(I2S_Type *base, + sai_handle_t *handle, + sai_transfer_format_t *format, + uint32_t mclkSourceClockHz, + uint32_t bclkSourceClockHz) +{ + assert(handle); + + if ((mclkSourceClockHz < format->sampleRate_Hz) || (bclkSourceClockHz < format->sampleRate_Hz)) + { + return kStatus_InvalidArgument; + } + + /* Copy format to handle */ + handle->bitWidth = format->bitWidth; +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + handle->watermark = format->watermark; +#endif + handle->channel = format->channel; + + SAI_RxSetFormat(base, format, mclkSourceClockHz, bclkSourceClockHz); + + return kStatus_Success; +} + +status_t SAI_TransferSendNonBlocking(I2S_Type *base, sai_handle_t *handle, sai_transfer_t *xfer) +{ + assert(handle); + + /* Check if the queue is full */ + if (handle->saiQueue[handle->queueUser].data) + { + return kStatus_SAI_QueueFull; + } + + /* Add into queue */ + handle->transferSize[handle->queueUser] = xfer->dataSize; + handle->saiQueue[handle->queueUser].data = xfer->data; + handle->saiQueue[handle->queueUser].dataSize = xfer->dataSize; + handle->queueUser = (handle->queueUser + 1) % SAI_XFER_QUEUE_SIZE; + + /* Set the state to busy */ + handle->state = kSAI_Busy; + +/* Enable interrupt */ +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + /* Use FIFO request interrupt and fifo error*/ + SAI_TxEnableInterrupts(base, kSAI_FIFOErrorInterruptEnable | kSAI_FIFORequestInterruptEnable); +#else + SAI_TxEnableInterrupts(base, kSAI_FIFOErrorInterruptEnable | kSAI_FIFOWarningInterruptEnable); +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ + + /* Enable Tx transfer */ + SAI_TxEnable(base, true); + + return kStatus_Success; +} + +status_t SAI_TransferReceiveNonBlocking(I2S_Type *base, sai_handle_t *handle, sai_transfer_t *xfer) +{ + assert(handle); + + /* Check if the queue is full */ + if (handle->saiQueue[handle->queueUser].data) + { + return kStatus_SAI_QueueFull; + } + + /* Add into queue */ + handle->transferSize[handle->queueUser] = xfer->dataSize; + handle->saiQueue[handle->queueUser].data = xfer->data; + handle->saiQueue[handle->queueUser].dataSize = xfer->dataSize; + handle->queueUser = (handle->queueUser + 1) % SAI_XFER_QUEUE_SIZE; + + /* Set state to busy */ + handle->state = kSAI_Busy; + +/* Enable interrupt */ +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + /* Use FIFO request interrupt and fifo error*/ + SAI_RxEnableInterrupts(base, kSAI_FIFOErrorInterruptEnable | kSAI_FIFORequestInterruptEnable); +#else + SAI_RxEnableInterrupts(base, kSAI_FIFOErrorInterruptEnable | kSAI_FIFOWarningInterruptEnable); +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ + + /* Enable Rx transfer */ + SAI_RxEnable(base, true); + + return kStatus_Success; +} + +status_t SAI_TransferGetSendCount(I2S_Type *base, sai_handle_t *handle, size_t *count) +{ + assert(handle); + + status_t status = kStatus_Success; + + if (handle->state != kSAI_Busy) + { + status = kStatus_NoTransferInProgress; + } + else + { + *count = (handle->transferSize[handle->queueDriver] - handle->saiQueue[handle->queueDriver].dataSize); + } + + return status; +} + +status_t SAI_TransferGetReceiveCount(I2S_Type *base, sai_handle_t *handle, size_t *count) +{ + assert(handle); + + status_t status = kStatus_Success; + + if (handle->state != kSAI_Busy) + { + status = kStatus_NoTransferInProgress; + } + else + { + *count = (handle->transferSize[handle->queueDriver] - handle->saiQueue[handle->queueDriver].dataSize); + } + + return status; +} + +void SAI_TransferAbortSend(I2S_Type *base, sai_handle_t *handle) +{ + assert(handle); + + /* Stop Tx transfer and disable interrupt */ + SAI_TxEnable(base, false); +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + /* Use FIFO request interrupt and fifo error */ + SAI_TxDisableInterrupts(base, kSAI_FIFOErrorInterruptEnable | kSAI_FIFORequestInterruptEnable); +#else + SAI_TxDisableInterrupts(base, kSAI_FIFOErrorInterruptEnable | kSAI_FIFOWarningInterruptEnable); +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ + + handle->state = kSAI_Idle; + + /* Clear the queue */ + memset(handle->saiQueue, 0, sizeof(sai_transfer_t) * SAI_XFER_QUEUE_SIZE); + handle->queueDriver = 0; + handle->queueUser = 0; +} + +void SAI_TransferAbortReceive(I2S_Type *base, sai_handle_t *handle) +{ + assert(handle); + + /* Stop Tx transfer and disable interrupt */ + SAI_RxEnable(base, false); +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + /* Use FIFO request interrupt and fifo error */ + SAI_RxDisableInterrupts(base, kSAI_FIFOErrorInterruptEnable | kSAI_FIFORequestInterruptEnable); +#else + SAI_RxDisableInterrupts(base, kSAI_FIFOErrorInterruptEnable | kSAI_FIFOWarningInterruptEnable); +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ + + handle->state = kSAI_Idle; + + /* Clear the queue */ + memset(handle->saiQueue, 0, sizeof(sai_transfer_t) * SAI_XFER_QUEUE_SIZE); + handle->queueDriver = 0; + handle->queueUser = 0; +} + +void SAI_TransferTxHandleIRQ(I2S_Type *base, sai_handle_t *handle) +{ + assert(handle); + + uint8_t *buffer = handle->saiQueue[handle->queueDriver].data; + uint8_t dataSize = handle->bitWidth / 8U; + + /* Handle Error */ + if (base->TCSR & I2S_TCSR_FEF_MASK) + { + /* Clear FIFO error flag to continue transfer */ + SAI_TxClearStatusFlags(base, kSAI_FIFOErrorFlag); + + /* Call the callback */ + if (handle->callback) + { + (handle->callback)(base, handle, kStatus_SAI_TxError, handle->userData); + } + } + +/* Handle transfer */ +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + if (base->TCSR & I2S_TCSR_FRF_MASK) + { + /* Judge if the data need to transmit is less than space */ + uint8_t size = MIN((handle->saiQueue[handle->queueDriver].dataSize), + (size_t)((FSL_FEATURE_SAI_FIFO_COUNT - handle->watermark) * dataSize)); + + /* Copy the data from sai buffer to FIFO */ + SAI_WriteNonBlocking(base, handle->channel, handle->bitWidth, buffer, size); + + /* Update the internal counter */ + handle->saiQueue[handle->queueDriver].dataSize -= size; + handle->saiQueue[handle->queueDriver].data += size; + } +#else + if (base->TCSR & I2S_TCSR_FWF_MASK) + { + uint8_t size = MIN((handle->saiQueue[handle->queueDriver].dataSize), dataSize); + + SAI_WriteNonBlocking(base, handle->channel, handle->bitWidth, buffer, size); + + /* Update internal counter */ + handle->saiQueue[handle->queueDriver].dataSize -= size; + handle->saiQueue[handle->queueDriver].data += size; + } +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ + + /* If finished a blcok, call the callback function */ + if (handle->saiQueue[handle->queueDriver].dataSize == 0U) + { + memset(&handle->saiQueue[handle->queueDriver], 0, sizeof(sai_transfer_t)); + handle->queueDriver = (handle->queueDriver + 1) % SAI_XFER_QUEUE_SIZE; + if (handle->callback) + { + (handle->callback)(base, handle, kStatus_SAI_TxIdle, handle->userData); + } + } + + /* If all data finished, just stop the transfer */ + if (handle->saiQueue[handle->queueDriver].data == NULL) + { + SAI_TransferAbortSend(base, handle); + } +} + +void SAI_TransferRxHandleIRQ(I2S_Type *base, sai_handle_t *handle) +{ + assert(handle); + + uint8_t *buffer = handle->saiQueue[handle->queueDriver].data; + uint8_t dataSize = handle->bitWidth / 8U; + + /* Handle Error */ + if (base->RCSR & I2S_RCSR_FEF_MASK) + { + /* Clear FIFO error flag to continue transfer */ + SAI_RxClearStatusFlags(base, kSAI_FIFOErrorFlag); + + /* Call the callback */ + if (handle->callback) + { + (handle->callback)(base, handle, kStatus_SAI_RxError, handle->userData); + } + } + +/* Handle transfer */ +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + if (base->RCSR & I2S_RCSR_FRF_MASK) + { + /* Judge if the data need to transmit is less than space */ + uint8_t size = MIN((handle->saiQueue[handle->queueDriver].dataSize), (handle->watermark * dataSize)); + + /* Copy the data from sai buffer to FIFO */ + SAI_ReadNonBlocking(base, handle->channel, handle->bitWidth, buffer, size); + + /* Update the internal counter */ + handle->saiQueue[handle->queueDriver].dataSize -= size; + handle->saiQueue[handle->queueDriver].data += size; + } +#else + if (base->RCSR & I2S_RCSR_FWF_MASK) + { + uint8_t size = MIN((handle->saiQueue[handle->queueDriver].dataSize), dataSize); + + SAI_ReadNonBlocking(base, handle->channel, handle->bitWidth, buffer, size); + + /* Update internal state */ + handle->saiQueue[handle->queueDriver].dataSize -= size; + handle->saiQueue[handle->queueDriver].data += size; + } +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ + + /* If finished a blcok, call the callback function */ + if (handle->saiQueue[handle->queueDriver].dataSize == 0U) + { + memset(&handle->saiQueue[handle->queueDriver], 0, sizeof(sai_transfer_t)); + handle->queueDriver = (handle->queueDriver + 1) % SAI_XFER_QUEUE_SIZE; + if (handle->callback) + { + (handle->callback)(base, handle, kStatus_SAI_RxIdle, handle->userData); + } + } + + /* If all data finished, just stop the transfer */ + if (handle->saiQueue[handle->queueDriver].data == NULL) + { + SAI_TransferAbortReceive(base, handle); + } +} + +#if defined(I2S0) +#if defined(FSL_FEATURE_SAI_INT_SOURCE_NUM) && (FSL_FEATURE_SAI_INT_SOURCE_NUM == 1) +void I2S0_DriverIRQHandler(void) +{ + if ((s_saiHandle[0][1]) && ((I2S0->RCSR & kSAI_FIFOWarningFlag) || (I2S0->RCSR & kSAI_FIFOErrorFlag))) + { + s_saiRxIsr(I2S0, s_saiHandle[0][1]); + } + if ((s_saiHandle[0][0]) && ((I2S0->TCSR & kSAI_FIFOWarningFlag) || (I2S0->TCSR & kSAI_FIFOErrorFlag))) + { + s_saiTxIsr(I2S0, s_saiHandle[0][0]); + } +} +#else +void I2S0_Tx_DriverIRQHandler(void) +{ + assert(s_saiHandle[0][0]); + s_saiTxIsr(I2S0, s_saiHandle[0][0]); +} + +void I2S0_Rx_DriverIRQHandler(void) +{ + assert(s_saiHandle[0][1]); + s_saiRxIsr(I2S0, s_saiHandle[0][1]); +} +#endif /* FSL_FEATURE_SAI_INT_SOURCE_NUM */ +#endif /* I2S0*/ + +#if defined(I2S1) +void I2S1_Tx_DriverIRQHandler(void) +{ + assert(s_saiHandle[1][0]); + s_saiTxIsr(I2S1, s_saiHandle[1][0]); +} + +void I2S1_Rx_DriverIRQHandler(void) +{ + assert(s_saiHandle[1][1]); + s_saiRxIsr(I2S1, s_saiHandle[1][1]); +} +#endif diff --git a/drivers/fsl_sai.h b/drivers/fsl_sai.h new file mode 100644 index 0000000..d40c575 --- /dev/null +++ b/drivers/fsl_sai.h @@ -0,0 +1,849 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_SAI_H_ +#define _FSL_SAI_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup sai + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +#define FSL_SAI_DRIVER_VERSION (MAKE_VERSION(2, 1, 1)) /*!< Version 2.1.1 */ +/*@}*/ + +/*! @brief SAI return status*/ +enum _sai_status_t +{ + kStatus_SAI_TxBusy = MAKE_STATUS(kStatusGroup_SAI, 0), /*!< SAI Tx is busy. */ + kStatus_SAI_RxBusy = MAKE_STATUS(kStatusGroup_SAI, 1), /*!< SAI Rx is busy. */ + kStatus_SAI_TxError = MAKE_STATUS(kStatusGroup_SAI, 2), /*!< SAI Tx FIFO error. */ + kStatus_SAI_RxError = MAKE_STATUS(kStatusGroup_SAI, 3), /*!< SAI Rx FIFO error. */ + kStatus_SAI_QueueFull = MAKE_STATUS(kStatusGroup_SAI, 4), /*!< SAI transfer queue is full. */ + kStatus_SAI_TxIdle = MAKE_STATUS(kStatusGroup_SAI, 5), /*!< SAI Tx is idle */ + kStatus_SAI_RxIdle = MAKE_STATUS(kStatusGroup_SAI, 6) /*!< SAI Rx is idle */ +}; + +/*! @brief Define the SAI bus type */ +typedef enum _sai_protocol +{ + kSAI_BusLeftJustified = 0x0U, /*!< Uses left justified format.*/ + kSAI_BusRightJustified, /*!< Uses right justified format. */ + kSAI_BusI2S, /*!< Uses I2S format. */ + kSAI_BusPCMA, /*!< Uses I2S PCM A format.*/ + kSAI_BusPCMB /*!< Uses I2S PCM B format. */ +} sai_protocol_t; + +/*! @brief Master or slave mode */ +typedef enum _sai_master_slave +{ + kSAI_Master = 0x0U, /*!< Master mode */ + kSAI_Slave = 0x1U /*!< Slave mode */ +} sai_master_slave_t; + +/*! @brief Mono or stereo audio format */ +typedef enum _sai_mono_stereo +{ + kSAI_Stereo = 0x0U, /*!< Stereo sound. */ + kSAI_MonoLeft, /*!< Only left channel have sound. */ + kSAI_MonoRight /*!< Only Right channel have sound. */ +} sai_mono_stereo_t; + +/*! @brief Synchronous or asynchronous mode */ +typedef enum _sai_sync_mode +{ + kSAI_ModeAsync = 0x0U, /*!< Asynchronous mode */ + kSAI_ModeSync, /*!< Synchronous mode (with receiver or transmit) */ + kSAI_ModeSyncWithOtherTx, /*!< Synchronous with another SAI transmit */ + kSAI_ModeSyncWithOtherRx /*!< Synchronous with another SAI receiver */ +} sai_sync_mode_t; + +/*! @brief Mater clock source */ +typedef enum _sai_mclk_source +{ + kSAI_MclkSourceSysclk = 0x0U, /*!< Master clock from the system clock */ + kSAI_MclkSourceSelect1, /*!< Master clock from source 1 */ + kSAI_MclkSourceSelect2, /*!< Master clock from source 2 */ + kSAI_MclkSourceSelect3 /*!< Master clock from source 3 */ +} sai_mclk_source_t; + +/*! @brief Bit clock source */ +typedef enum _sai_bclk_source +{ + kSAI_BclkSourceBusclk = 0x0U, /*!< Bit clock using bus clock */ + kSAI_BclkSourceMclkDiv, /*!< Bit clock using master clock divider */ + kSAI_BclkSourceOtherSai0, /*!< Bit clock from other SAI device */ + kSAI_BclkSourceOtherSai1 /*!< Bit clock from other SAI device */ +} sai_bclk_source_t; + +/*! @brief The SAI interrupt enable flag */ +enum _sai_interrupt_enable_t +{ + kSAI_WordStartInterruptEnable = + I2S_TCSR_WSIE_MASK, /*!< Word start flag, means the first word in a frame detected */ + kSAI_SyncErrorInterruptEnable = I2S_TCSR_SEIE_MASK, /*!< Sync error flag, means the sync error is detected */ + kSAI_FIFOWarningInterruptEnable = I2S_TCSR_FWIE_MASK, /*!< FIFO warning flag, means the FIFO is empty */ + kSAI_FIFOErrorInterruptEnable = I2S_TCSR_FEIE_MASK, /*!< FIFO error flag */ +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + kSAI_FIFORequestInterruptEnable = I2S_TCSR_FRIE_MASK, /*!< FIFO request, means reached watermark */ +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ +}; + +/*! @brief The DMA request sources */ +enum _sai_dma_enable_t +{ + kSAI_FIFOWarningDMAEnable = I2S_TCSR_FWDE_MASK, /*!< FIFO warning caused by the DMA request */ +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + kSAI_FIFORequestDMAEnable = I2S_TCSR_FRDE_MASK, /*!< FIFO request caused by the DMA request */ +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ +}; + +/*! @brief The SAI status flag */ +enum _sai_flags +{ + kSAI_WordStartFlag = I2S_TCSR_WSF_MASK, /*!< Word start flag, means the first word in a frame detected */ + kSAI_SyncErrorFlag = I2S_TCSR_SEF_MASK, /*!< Sync error flag, means the sync error is detected */ + kSAI_FIFOErrorFlag = I2S_TCSR_FEF_MASK, /*!< FIFO error flag */ +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + kSAI_FIFORequestFlag = I2S_TCSR_FRF_MASK, /*!< FIFO request flag. */ +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ + kSAI_FIFOWarningFlag = I2S_TCSR_FWF_MASK, /*!< FIFO warning flag */ +}; + +/*! @brief The reset type */ +typedef enum _sai_reset_type +{ + kSAI_ResetTypeSoftware = I2S_TCSR_SR_MASK, /*!< Software reset, reset the logic state */ + kSAI_ResetTypeFIFO = I2S_TCSR_FR_MASK, /*!< FIFO reset, reset the FIFO read and write pointer */ + kSAI_ResetAll = I2S_TCSR_SR_MASK | I2S_TCSR_FR_MASK /*!< All reset. */ +} sai_reset_type_t; + +#if defined(FSL_FEATURE_SAI_HAS_FIFO_PACKING) && FSL_FEATURE_SAI_HAS_FIFO_PACKING +/*! + * @brief The SAI packing mode + * The mode includes 8 bit and 16 bit packing. + */ +typedef enum _sai_fifo_packing +{ + kSAI_FifoPackingDisabled = 0x0U, /*!< Packing disabled */ + kSAI_FifoPacking8bit = 0x2U, /*!< 8 bit packing enabled */ + kSAI_FifoPacking16bit = 0x3U /*!< 16bit packing enabled */ +} sai_fifo_packing_t; +#endif /* FSL_FEATURE_SAI_HAS_FIFO_PACKING */ + +/*! @brief SAI user configuration structure */ +typedef struct _sai_config +{ + sai_protocol_t protocol; /*!< Audio bus protocol in SAI */ + sai_sync_mode_t syncMode; /*!< SAI sync mode, control Tx/Rx clock sync */ +#if defined(FSL_FEATURE_SAI_HAS_MCR) && (FSL_FEATURE_SAI_HAS_MCR) + bool mclkOutputEnable; /*!< Master clock output enable, true means master clock divider enabled */ +#endif /* FSL_FEATURE_SAI_HAS_MCR */ + sai_mclk_source_t mclkSource; /*!< Master Clock source */ + sai_bclk_source_t bclkSource; /*!< Bit Clock source */ + sai_master_slave_t masterSlave; /*!< Master or slave */ +} sai_config_t; + +/*!@brief SAI transfer queue size, user can refine it according to use case. */ +#define SAI_XFER_QUEUE_SIZE (4) + +/*! @brief Audio sample rate */ +typedef enum _sai_sample_rate +{ + kSAI_SampleRate8KHz = 8000U, /*!< Sample rate 8000 Hz */ + kSAI_SampleRate11025Hz = 11025U, /*!< Sample rate 11025 Hz */ + kSAI_SampleRate12KHz = 12000U, /*!< Sample rate 12000 Hz */ + kSAI_SampleRate16KHz = 16000U, /*!< Sample rate 16000 Hz */ + kSAI_SampleRate22050Hz = 22050U, /*!< Sample rate 22050 Hz */ + kSAI_SampleRate24KHz = 24000U, /*!< Sample rate 24000 Hz */ + kSAI_SampleRate32KHz = 32000U, /*!< Sample rate 32000 Hz */ + kSAI_SampleRate44100Hz = 44100U, /*!< Sample rate 44100 Hz */ + kSAI_SampleRate48KHz = 48000U, /*!< Sample rate 48000 Hz */ + kSAI_SampleRate96KHz = 96000U /*!< Sample rate 96000 Hz */ +} sai_sample_rate_t; + +/*! @brief Audio word width */ +typedef enum _sai_word_width +{ + kSAI_WordWidth8bits = 8U, /*!< Audio data width 8 bits */ + kSAI_WordWidth16bits = 16U, /*!< Audio data width 16 bits */ + kSAI_WordWidth24bits = 24U, /*!< Audio data width 24 bits */ + kSAI_WordWidth32bits = 32U /*!< Audio data width 32 bits */ +} sai_word_width_t; + +/*! @brief sai transfer format */ +typedef struct _sai_transfer_format +{ + uint32_t sampleRate_Hz; /*!< Sample rate of audio data */ + uint32_t bitWidth; /*!< Data length of audio data, usually 8/16/24/32 bits */ + sai_mono_stereo_t stereo; /*!< Mono or stereo */ + uint32_t masterClockHz; /*!< Master clock frequency in Hz */ +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + uint8_t watermark; /*!< Watermark value */ +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ + uint8_t channel; /*!< Data channel used in transfer.*/ + sai_protocol_t protocol; /*!< Which audio protocol used */ +} sai_transfer_format_t; + +/*! @brief SAI transfer structure */ +typedef struct _sai_transfer +{ + uint8_t *data; /*!< Data start address to transfer. */ + size_t dataSize; /*!< Transfer size. */ +} sai_transfer_t; + +typedef struct _sai_handle sai_handle_t; + +/*! @brief SAI transfer callback prototype */ +typedef void (*sai_transfer_callback_t)(I2S_Type *base, sai_handle_t *handle, status_t status, void *userData); + +/*! @brief SAI handle structure */ +struct _sai_handle +{ + uint32_t state; /*!< Transfer status */ + sai_transfer_callback_t callback; /*!< Callback function called at transfer event*/ + void *userData; /*!< Callback parameter passed to callback function*/ + uint8_t bitWidth; /*!< Bit width for transfer, 8/16/24/32 bits */ + uint8_t channel; /*!< Transfer channel */ + sai_transfer_t saiQueue[SAI_XFER_QUEUE_SIZE]; /*!< Transfer queue storing queued transfer */ + size_t transferSize[SAI_XFER_QUEUE_SIZE]; /*!< Data bytes need to transfer */ + volatile uint8_t queueUser; /*!< Index for user to queue transfer */ + volatile uint8_t queueDriver; /*!< Index for driver to get the transfer data and size */ +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + uint8_t watermark; /*!< Watermark value */ +#endif +}; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /*_cplusplus*/ + +/*! + * @name Initialization and deinitialization + * @{ + */ + +/*! + * @brief Initializes the SAI Tx peripheral. + * + * Ungates the SAI clock, resets the module, and configures SAI Tx with a configuration structure. + * The configuration structure can be custom filled or set with default values by + * SAI_TxGetDefaultConfig(). + * + * @note This API should be called at the beginning of the application to use + * the SAI driver. Otherwise, accessing the SAIM module can cause a hard fault + * because the clock is not enabled. + * + * @param base SAI base pointer + * @param config SAI configuration structure. +*/ +void SAI_TxInit(I2S_Type *base, const sai_config_t *config); + +/*! + * @brief Initializes the the SAI Rx peripheral. + * + * Ungates the SAI clock, resets the module, and configures the SAI Rx with a configuration structure. + * The configuration structure can be custom filled or set with default values by + * SAI_RxGetDefaultConfig(). + * + * @note This API should be called at the beginning of the application to use + * the SAI driver. Otherwise, accessing the SAI module can cause a hard fault + * because the clock is not enabled. + * + * @param base SAI base pointer + * @param config SAI configuration structure. + */ +void SAI_RxInit(I2S_Type *base, const sai_config_t *config); + +/*! + * @brief Sets the SAI Tx configuration structure to default values. + * + * This API initializes the configuration structure for use in SAI_TxConfig(). + * The initialized structure can remain unchanged in SAI_TxConfig(), or it can be modified + * before calling SAI_TxConfig(). + * Example: + @code + sai_config_t config; + SAI_TxGetDefaultConfig(&config); + @endcode + * + * @param config pointer to master configuration structure + */ +void SAI_TxGetDefaultConfig(sai_config_t *config); + +/*! + * @brief Sets the SAI Rx configuration structure to default values. + * + * This API initializes the configuration structure for use in SAI_RxConfig(). + * The initialized structure can remain unchanged in SAI_RxConfig() or it can be modified + * before calling SAI_RxConfig(). + * Example: + @code + sai_config_t config; + SAI_RxGetDefaultConfig(&config); + @endcode + * + * @param config pointer to master configuration structure + */ +void SAI_RxGetDefaultConfig(sai_config_t *config); + +/*! + * @brief De-initializes the SAI peripheral. + * + * This API gates the SAI clock. The SAI module can't operate unless SAI_TxInit + * or SAI_RxInit is called to enable the clock. + * + * @param base SAI base pointer +*/ +void SAI_Deinit(I2S_Type *base); + +/*! + * @brief Resets the SAI Tx. + * + * This function enables the software reset and FIFO reset of SAI Tx. After reset, clear the reset bit. + * + * @param base SAI base pointer + */ +void SAI_TxReset(I2S_Type *base); + +/*! + * @brief Resets the SAI Rx. + * + * This function enables the software reset and FIFO reset of SAI Rx. After reset, clear the reset bit. + * + * @param base SAI base pointer + */ +void SAI_RxReset(I2S_Type *base); + +/*! + * @brief Enables/disables SAI Tx. + * + * @param base SAI base pointer + * @param enable True means enable SAI Tx, false means disable. + */ +void SAI_TxEnable(I2S_Type *base, bool enable); + +/*! + * @brief Enables/disables SAI Rx. + * + * @param base SAI base pointer + * @param enable True means enable SAI Rx, false means disable. + */ +void SAI_RxEnable(I2S_Type *base, bool enable); + +/*! @} */ + +/*! + * @name Status + * @{ + */ + +/*! + * @brief Gets the SAI Tx status flag state. + * + * @param base SAI base pointer + * @return SAI Tx status flag value. Use the Status Mask to get the status value needed. + */ +static inline uint32_t SAI_TxGetStatusFlag(I2S_Type *base) +{ + return base->TCSR; +} + +/*! + * @brief Clears the SAI Tx status flag state. + * + * @param base SAI base pointer + * @param mask State mask. It can be a combination of the following source if defined: + * @arg kSAI_WordStartFlag + * @arg kSAI_SyncErrorFlag + * @arg kSAI_FIFOErrorFlag + */ +static inline void SAI_TxClearStatusFlags(I2S_Type *base, uint32_t mask) +{ + base->TCSR = ((base->TCSR & 0xFFE3FFFFU) | mask); +} + +/*! + * @brief Gets the SAI Tx status flag state. + * + * @param base SAI base pointer + * @return SAI Rx status flag value. Use the Status Mask to get the status value needed. + */ +static inline uint32_t SAI_RxGetStatusFlag(I2S_Type *base) +{ + return base->RCSR; +} + +/*! + * @brief Clears the SAI Rx status flag state. + * + * @param base SAI base pointer + * @param mask State mask. It can be a combination of the following source if defined: + * @arg kSAI_WordStartFlag + * @arg kSAI_SyncErrorFlag + * @arg kSAI_FIFOErrorFlag + */ +static inline void SAI_RxClearStatusFlags(I2S_Type *base, uint32_t mask) +{ + base->RCSR = ((base->RCSR & 0xFFE3FFFFU) | mask); +} + +/*! @} */ + +/*! + * @name Interrupts + * @{ + */ + +/*! + * @brief Enables SAI Tx interrupt requests. + * + * @param base SAI base pointer + * @param mask interrupt source + * The parameter can be a combination of the following source if defined: + * @arg kSAI_WordStartInterruptEnable + * @arg kSAI_SyncErrorInterruptEnable + * @arg kSAI_FIFOWarningInterruptEnable + * @arg kSAI_FIFORequestInterruptEnable + * @arg kSAI_FIFOErrorInterruptEnable + */ +static inline void SAI_TxEnableInterrupts(I2S_Type *base, uint32_t mask) +{ + base->TCSR = ((base->TCSR & 0xFFE3FFFFU) | mask); +} + +/*! + * @brief Enables SAI Rx interrupt requests. + * + * @param base SAI base pointer + * @param mask interrupt source + * The parameter can be a combination of the following source if defined: + * @arg kSAI_WordStartInterruptEnable + * @arg kSAI_SyncErrorInterruptEnable + * @arg kSAI_FIFOWarningInterruptEnable + * @arg kSAI_FIFORequestInterruptEnable + * @arg kSAI_FIFOErrorInterruptEnable + */ +static inline void SAI_RxEnableInterrupts(I2S_Type *base, uint32_t mask) +{ + base->RCSR = ((base->RCSR & 0xFFE3FFFFU) | mask); +} + +/*! + * @brief Disables SAI Tx interrupt requests. + * + * @param base SAI base pointer + * @param mask interrupt source + * The parameter can be a combination of the following source if defined: + * @arg kSAI_WordStartInterruptEnable + * @arg kSAI_SyncErrorInterruptEnable + * @arg kSAI_FIFOWarningInterruptEnable + * @arg kSAI_FIFORequestInterruptEnable + * @arg kSAI_FIFOErrorInterruptEnable + */ +static inline void SAI_TxDisableInterrupts(I2S_Type *base, uint32_t mask) +{ + base->TCSR = ((base->TCSR & 0xFFE3FFFFU) & (~mask)); +} + +/*! + * @brief Disables SAI Rx interrupt requests. + * + * @param base SAI base pointer + * @param mask interrupt source + * The parameter can be a combination of the following source if defined: + * @arg kSAI_WordStartInterruptEnable + * @arg kSAI_SyncErrorInterruptEnable + * @arg kSAI_FIFOWarningInterruptEnable + * @arg kSAI_FIFORequestInterruptEnable + * @arg kSAI_FIFOErrorInterruptEnable + */ +static inline void SAI_RxDisableInterrupts(I2S_Type *base, uint32_t mask) +{ + base->RCSR = ((base->RCSR & 0xFFE3FFFFU) & (~mask)); +} + +/*! @} */ + +/*! + * @name DMA Control + * @{ + */ + +/*! + * @brief Enables/disables SAI Tx DMA requests. + * @param base SAI base pointer + * @param mask DMA source + * The parameter can be combination of the following source if defined: + * @arg kSAI_FIFOWarningDMAEnable + * @arg kSAI_FIFORequestDMAEnable + * @param enable True means enable DMA, false means disable DMA. + */ +static inline void SAI_TxEnableDMA(I2S_Type *base, uint32_t mask, bool enable) +{ + if (enable) + { + base->TCSR = ((base->TCSR & 0xFFE3FFFFU) | mask); + } + else + { + base->TCSR = ((base->TCSR & 0xFFE3FFFFU) & (~mask)); + } +} + +/*! + * @brief Enables/disables SAI Rx DMA requests. + * @param base SAI base pointer + * @param mask DMA source + * The parameter can be a combination of the following source if defined: + * @arg kSAI_FIFOWarningDMAEnable + * @arg kSAI_FIFORequestDMAEnable + * @param enable True means enable DMA, false means disable DMA. + */ +static inline void SAI_RxEnableDMA(I2S_Type *base, uint32_t mask, bool enable) +{ + if (enable) + { + base->RCSR = ((base->RCSR & 0xFFE3FFFFU) | mask); + } + else + { + base->RCSR = ((base->RCSR & 0xFFE3FFFFU) & (~mask)); + } +} + +/*! + * @brief Gets the SAI Tx data register address. + * + * This API is used to provide a transfer address for SAI DMA transfer configuration. + * + * @param base SAI base pointer. + * @param channel Which data channel used. + * @return data register address. + */ +static inline uint32_t SAI_TxGetDataRegisterAddress(I2S_Type *base, uint32_t channel) +{ + return (uint32_t)(&(base->TDR)[channel]); +} + +/*! + * @brief Gets the SAI Rx data register address. + * + * This API is used to provide a transfer address for SAI DMA transfer configuration. + * + * @param base SAI base pointer. + * @param channel Which data channel used. + * @return data register address. + */ +static inline uint32_t SAI_RxGetDataRegisterAddress(I2S_Type *base, uint32_t channel) +{ + return (uint32_t)(&(base->RDR)[channel]); +} + +/*! @} */ + +/*! + * @name Bus Operations + * @{ + */ + +/*! + * @brief Configures the SAI Tx audio format. + * + * The audio format can be changed at run-time. This function configures the sample rate and audio data + * format to be transferred. + * + * @param base SAI base pointer. + * @param format Pointer to SAI audio data format structure. + * @param mclkSourceClockHz SAI master clock source frequency in Hz. + * @param bclkSourceClockHz SAI bit clock source frequency in Hz. If bit clock source is master + * clock, this value should equals to masterClockHz in format. +*/ +void SAI_TxSetFormat(I2S_Type *base, + sai_transfer_format_t *format, + uint32_t mclkSourceClockHz, + uint32_t bclkSourceClockHz); + +/*! + * @brief Configures the SAI Rx audio format. + * + * The audio format can be changed at run-time. This function configures the sample rate and audio data + * format to be transferred. + * + * @param base SAI base pointer. + * @param format Pointer to SAI audio data format structure. + * @param mclkSourceClockHz SAI master clock source frequency in Hz. + * @param bclkSourceClockHz SAI bit clock source frequency in Hz. If bit clock source is master + * clock, this value should equals to masterClockHz in format. +*/ +void SAI_RxSetFormat(I2S_Type *base, + sai_transfer_format_t *format, + uint32_t mclkSourceClockHz, + uint32_t bclkSourceClockHz); + +/*! + * @brief Sends data using a blocking method. + * + * @note This function blocks by polling until data is ready to be sent. + * + * @param base SAI base pointer. + * @param channel Data channel used. + * @param bitWidth How many bits in a audio word, usually 8/16/24/32 bits. + * @param buffer Pointer to the data to be written. + * @param size Bytes to be written. + */ +void SAI_WriteBlocking(I2S_Type *base, uint32_t channel, uint32_t bitWidth, uint8_t *buffer, uint32_t size); + +/*! + * @brief Writes data into SAI FIFO. + * + * @param base SAI base pointer. + * @param channel Data channel used. + * @param data Data needs to be written. + */ +static inline void SAI_WriteData(I2S_Type *base, uint32_t channel, uint32_t data) +{ + base->TDR[channel] = data; +} + +/*! + * @brief Receives data using a blocking method. + * + * @note This function blocks by polling until data is ready to be sent. + * + * @param base SAI base pointer. + * @param channel Data channel used. + * @param bitWidth How many bits in a audio word, usually 8/16/24/32 bits. + * @param buffer Pointer to the data to be read. + * @param size Bytes to be read. + */ +void SAI_ReadBlocking(I2S_Type *base, uint32_t channel, uint32_t bitWidth, uint8_t *buffer, uint32_t size); + +/*! + * @brief Reads data from SAI FIFO. + * + * @param base SAI base pointer. + * @param channel Data channel used. + * @return Data in SAI FIFO. + */ +static inline uint32_t SAI_ReadData(I2S_Type *base, uint32_t channel) +{ + return base->RDR[channel]; +} + +/*! @} */ + +/*! + * @name Transactional + * @{ + */ + +/*! + * @brief Initializes the SAI Tx handle. + * + * This function initializes the Tx handle for SAI Tx transactional APIs. Call + * this function one time to get the handle initialized. + * + * @param base SAI base pointer + * @param handle SAI handle pointer. + * @param callback pointer to user callback function + * @param userData user parameter passed to the callback function + */ +void SAI_TransferTxCreateHandle(I2S_Type *base, sai_handle_t *handle, sai_transfer_callback_t callback, void *userData); + +/*! + * @brief Initializes the SAI Rx handle. + * + * This function initializes the Rx handle for SAI Rx transactional APIs. Call + * this function one time to get the handle initialized. + * + * @param base SAI base pointer. + * @param handle SAI handle pointer. + * @param callback pointer to user callback function + * @param userData user parameter passed to the callback function + */ +void SAI_TransferRxCreateHandle(I2S_Type *base, sai_handle_t *handle, sai_transfer_callback_t callback, void *userData); + +/*! + * @brief Configures the SAI Tx audio format. + * + * The audio format can be changed at run-time. This function configures the sample rate and audio data + * format to be transferred. + * + * @param base SAI base pointer. + * @param handle SAI handle pointer. + * @param format Pointer to SAI audio data format structure. + * @param mclkSourceClockHz SAI master clock source frequency in Hz. + * @param bclkSourceClockHz SAI bit clock source frequency in Hz. If a bit clock source is a master + * clock, this value should equal to masterClockHz in format. + * @return Status of this function. Return value is one of status_t. +*/ +status_t SAI_TransferTxSetFormat(I2S_Type *base, + sai_handle_t *handle, + sai_transfer_format_t *format, + uint32_t mclkSourceClockHz, + uint32_t bclkSourceClockHz); + +/*! + * @brief Configures the SAI Rx audio format. + * + * The audio format can be changed at run-time. This function configures the sample rate and audio data + * format to be transferred. + * + * @param base SAI base pointer. + * @param handle SAI handle pointer. + * @param format Pointer to SAI audio data format structure. + * @param mclkSourceClockHz SAI master clock source frequency in Hz. + * @param bclkSourceClockHz SAI bit clock source frequency in Hz. If bit clock source is master + * clock, this value should equals to masterClockHz in format. + * @return Status of this function. Return value is one of status_t. +*/ +status_t SAI_TransferRxSetFormat(I2S_Type *base, + sai_handle_t *handle, + sai_transfer_format_t *format, + uint32_t mclkSourceClockHz, + uint32_t bclkSourceClockHz); + +/*! + * @brief Performs an interrupt non-blocking send transfer on SAI. + * + * @note This API returns immediately after the transfer initiates. + * Call the SAI_TxGetTransferStatusIRQ to poll the transfer status and check whether + * the transfer is finished. If the return status is not kStatus_SAI_Busy, the transfer + * is finished. + * + * @param base SAI base pointer + * @param handle pointer to sai_handle_t structure which stores the transfer state + * @param xfer pointer to sai_transfer_t structure + * @retval kStatus_Success Successfully started the data receive. + * @retval kStatus_SAI_TxBusy Previous receive still not finished. + * @retval kStatus_InvalidArgument The input parameter is invalid. + */ +status_t SAI_TransferSendNonBlocking(I2S_Type *base, sai_handle_t *handle, sai_transfer_t *xfer); + +/*! + * @brief Performs an interrupt non-blocking receive transfer on SAI. + * + * @note This API returns immediately after the transfer initiates. + * Call the SAI_RxGetTransferStatusIRQ to poll the transfer status and check whether + * the transfer is finished. If the return status is not kStatus_SAI_Busy, the transfer + * is finished. + * + * @param base SAI base pointer + * @param handle pointer to sai_handle_t structure which stores the transfer state + * @param xfer pointer to sai_transfer_t structure + * @retval kStatus_Success Successfully started the data receive. + * @retval kStatus_SAI_RxBusy Previous receive still not finished. + * @retval kStatus_InvalidArgument The input parameter is invalid. + */ +status_t SAI_TransferReceiveNonBlocking(I2S_Type *base, sai_handle_t *handle, sai_transfer_t *xfer); + +/*! + * @brief Gets a set byte count. + * + * @param base SAI base pointer. + * @param handle pointer to sai_handle_t structure which stores the transfer state. + * @param count Bytes count sent. + * @retval kStatus_Success Succeed get the transfer count. + * @retval kStatus_NoTransferInProgress There is not a non-blocking transaction currently in progress. + */ +status_t SAI_TransferGetSendCount(I2S_Type *base, sai_handle_t *handle, size_t *count); + +/*! + * @brief Gets a received byte count. + * + * @param base SAI base pointer. + * @param handle pointer to sai_handle_t structure which stores the transfer state. + * @param count Bytes count received. + * @retval kStatus_Success Succeed get the transfer count. + * @retval kStatus_NoTransferInProgress There is not a non-blocking transaction currently in progress. + */ +status_t SAI_TransferGetReceiveCount(I2S_Type *base, sai_handle_t *handle, size_t *count); + +/*! + * @brief Aborts the current send. + * + * @note This API can be called any time when an interrupt non-blocking transfer initiates + * to abort the transfer early. + * + * @param base SAI base pointer. + * @param handle pointer to sai_handle_t structure which stores the transfer state. + */ +void SAI_TransferAbortSend(I2S_Type *base, sai_handle_t *handle); + +/*! + * @brief Aborts the the current IRQ receive. + * + * @note This API can be called any time when an interrupt non-blocking transfer initiates + * to abort the transfer early. + * + * @param base SAI base pointer + * @param handle pointer to sai_handle_t structure which stores the transfer state. + */ +void SAI_TransferAbortReceive(I2S_Type *base, sai_handle_t *handle); + +/*! + * @brief Tx interrupt handler. + * + * @param base SAI base pointer. + * @param handle pointer to sai_handle_t structure. + */ +void SAI_TransferTxHandleIRQ(I2S_Type *base, sai_handle_t *handle); + +/*! + * @brief Tx interrupt handler. + * + * @param base SAI base pointer. + * @param handle pointer to sai_handle_t structure. + */ +void SAI_TransferRxHandleIRQ(I2S_Type *base, sai_handle_t *handle); + +/*! @} */ + +#if defined(__cplusplus) +} +#endif /*_cplusplus*/ + +/*! @} */ + +#endif /* _FSL_SAI_H_ */ diff --git a/drivers/fsl_sai_edma.c b/drivers/fsl_sai_edma.c new file mode 100644 index 0000000..9b1b2f6 --- /dev/null +++ b/drivers/fsl_sai_edma.c @@ -0,0 +1,379 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_sai_edma.h" + +/******************************************************************************* + * Definitations + ******************************************************************************/ +/* Used for 32byte aligned */ +#define STCD_ADDR(address) (edma_tcd_t *)(((uint32_t)address + 32) & ~0x1FU) + +/*<! Structure definition for uart_edma_private_handle_t. The structure is private. */ +typedef struct _sai_edma_private_handle +{ + I2S_Type *base; + sai_edma_handle_t *handle; +} sai_edma_private_handle_t; + +enum _sai_edma_transfer_state +{ + kSAI_Busy = 0x0U, /*!< SAI is busy */ + kSAI_Idle, /*!< Transfer is done. */ +}; + +/*<! Private handle only used for internally. */ +static sai_edma_private_handle_t s_edmaPrivateHandle[FSL_FEATURE_SOC_I2S_COUNT][2]; + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Get the instance number for SAI. + * + * @param base SAI base pointer. + */ +extern uint32_t SAI_GetInstance(I2S_Type *base); + +/*! + * @brief SAI EDMA callback for send. + * + * @param handle pointer to sai_edma_handle_t structure which stores the transfer state. + * @param userData Parameter for user callback. + * @param done If the DMA transfer finished. + * @param tcds The TCD index. + */ +static void SAI_TxEDMACallback(edma_handle_t *handle, void *userData, bool done, uint32_t tcds); + +/*! + * @brief SAI EDMA callback for receive. + * + * @param handle pointer to sai_edma_handle_t structure which stores the transfer state. + * @param userData Parameter for user callback. + * @param done If the DMA transfer finished. + * @param tcds The TCD index. + */ +static void SAI_RxEDMACallback(edma_handle_t *handle, void *userData, bool done, uint32_t tcds); + +/******************************************************************************* +* Code +******************************************************************************/ +static void SAI_TxEDMACallback(edma_handle_t *handle, void *userData, bool done, uint32_t tcds) +{ + sai_edma_private_handle_t *privHandle = (sai_edma_private_handle_t *)userData; + sai_edma_handle_t *saiHandle = privHandle->handle; + + /* If finished a blcok, call the callback function */ + memset(&saiHandle->saiQueue[saiHandle->queueDriver], 0, sizeof(sai_transfer_t)); + saiHandle->queueDriver = (saiHandle->queueDriver + 1) % SAI_XFER_QUEUE_SIZE; + if (saiHandle->callback) + { + (saiHandle->callback)(privHandle->base, saiHandle, kStatus_SAI_TxIdle, saiHandle->userData); + } + + /* If all data finished, just stop the transfer */ + if (saiHandle->saiQueue[saiHandle->queueDriver].data == NULL) + { + SAI_TransferAbortSendEDMA(privHandle->base, saiHandle); + } +} + +static void SAI_RxEDMACallback(edma_handle_t *handle, void *userData, bool done, uint32_t tcds) +{ + sai_edma_private_handle_t *privHandle = (sai_edma_private_handle_t *)userData; + sai_edma_handle_t *saiHandle = privHandle->handle; + + /* If finished a blcok, call the callback function */ + memset(&saiHandle->saiQueue[saiHandle->queueDriver], 0, sizeof(sai_transfer_t)); + saiHandle->queueDriver = (saiHandle->queueDriver + 1) % SAI_XFER_QUEUE_SIZE; + if (saiHandle->callback) + { + (saiHandle->callback)(privHandle->base, saiHandle, kStatus_SAI_RxIdle, saiHandle->userData); + } + + /* If all data finished, just stop the transfer */ + if (saiHandle->saiQueue[saiHandle->queueDriver].data == NULL) + { + SAI_TransferAbortReceiveEDMA(privHandle->base, saiHandle); + } +} + +void SAI_TransferTxCreateHandleEDMA( + I2S_Type *base, sai_edma_handle_t *handle, sai_edma_callback_t callback, void *userData, edma_handle_t *dmaHandle) +{ + assert(handle && dmaHandle); + + uint32_t instance = SAI_GetInstance(base); + + /* Set sai base to handle */ + handle->dmaHandle = dmaHandle; + handle->callback = callback; + handle->userData = userData; + + /* Set SAI state to idle */ + handle->state = kSAI_Idle; + + s_edmaPrivateHandle[instance][0].base = base; + s_edmaPrivateHandle[instance][0].handle = handle; + + /* Need to use scatter gather */ + EDMA_InstallTCDMemory(dmaHandle, STCD_ADDR(handle->tcd), SAI_XFER_QUEUE_SIZE); + + /* Install callback for Tx dma channel */ + EDMA_SetCallback(dmaHandle, SAI_TxEDMACallback, &s_edmaPrivateHandle[instance][0]); +} + +void SAI_TransferRxCreateHandleEDMA( + I2S_Type *base, sai_edma_handle_t *handle, sai_edma_callback_t callback, void *userData, edma_handle_t *dmaHandle) +{ + assert(handle && dmaHandle); + + uint32_t instance = SAI_GetInstance(base); + + /* Set sai base to handle */ + handle->dmaHandle = dmaHandle; + handle->callback = callback; + handle->userData = userData; + + /* Set SAI state to idle */ + handle->state = kSAI_Idle; + + s_edmaPrivateHandle[instance][1].base = base; + s_edmaPrivateHandle[instance][1].handle = handle; + + /* Need to use scatter gather */ + EDMA_InstallTCDMemory(dmaHandle, STCD_ADDR(handle->tcd), SAI_XFER_QUEUE_SIZE); + + /* Install callback for Tx dma channel */ + EDMA_SetCallback(dmaHandle, SAI_RxEDMACallback, &s_edmaPrivateHandle[instance][1]); +} + +void SAI_TransferTxSetFormatEDMA(I2S_Type *base, + sai_edma_handle_t *handle, + sai_transfer_format_t *format, + uint32_t mclkSourceClockHz, + uint32_t bclkSourceClockHz) +{ + assert(handle && format); + + /* Configure the audio format to SAI registers */ + SAI_TxSetFormat(base, format, mclkSourceClockHz, bclkSourceClockHz); + + /* Get the tranfer size from format, this should be used in EDMA configuration */ + handle->bytesPerFrame = format->bitWidth / 8U; + + /* Update the data channel SAI used */ + handle->channel = format->channel; +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + handle->count = FSL_FEATURE_SAI_FIFO_COUNT - format->watermark; +#else + handle->count = 1U; +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ +} + +void SAI_TransferRxSetFormatEDMA(I2S_Type *base, + sai_edma_handle_t *handle, + sai_transfer_format_t *format, + uint32_t mclkSourceClockHz, + uint32_t bclkSourceClockHz) +{ + assert(handle && format); + + /* Configure the audio format to SAI registers */ + SAI_RxSetFormat(base, format, mclkSourceClockHz, bclkSourceClockHz); + + /* Get the tranfer size from format, this should be used in EDMA configuration */ + handle->bytesPerFrame = format->bitWidth / 8U; + + /* Update the data channel SAI used */ + handle->channel = format->channel; + +#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) + handle->count = format->watermark; +#else + handle->count = 1U; +#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ +} + +status_t SAI_TransferSendEDMA(I2S_Type *base, sai_edma_handle_t *handle, sai_transfer_t *xfer) +{ + assert(handle && xfer); + + edma_transfer_config_t config = {0}; + uint32_t destAddr = SAI_TxGetDataRegisterAddress(base, handle->channel); + + /* Check if input parameter invalid */ + if ((xfer->data == NULL) || (xfer->dataSize == 0U)) + { + return kStatus_InvalidArgument; + } + + if (handle->saiQueue[handle->queueUser].data) + { + return kStatus_SAI_QueueFull; + } + + /* Change the state of handle */ + handle->state = kSAI_Busy; + + /* Update the queue state */ + handle->transferSize[handle->queueUser] = xfer->dataSize; + handle->saiQueue[handle->queueUser].data = xfer->data; + handle->saiQueue[handle->queueUser].dataSize = xfer->dataSize; + handle->queueUser = (handle->queueUser + 1) % SAI_XFER_QUEUE_SIZE; + + /* Prepare edma configure */ + EDMA_PrepareTransfer(&config, xfer->data, handle->bytesPerFrame, (void *)destAddr, handle->bytesPerFrame, + handle->count * handle->bytesPerFrame, xfer->dataSize, kEDMA_MemoryToPeripheral); + + EDMA_SubmitTransfer(handle->dmaHandle, &config); + + /* Start DMA transfer */ + EDMA_StartTransfer(handle->dmaHandle); + + /* Enable DMA enable bit */ + SAI_TxEnableDMA(base, kSAI_FIFORequestDMAEnable, true); + + /* Enable SAI Tx clock */ + SAI_TxEnable(base, true); + + return kStatus_Success; +} + +status_t SAI_TransferReceiveEDMA(I2S_Type *base, sai_edma_handle_t *handle, sai_transfer_t *xfer) +{ + assert(handle && xfer); + + edma_transfer_config_t config = {0}; + uint32_t srcAddr = SAI_RxGetDataRegisterAddress(base, handle->channel); + + /* Check if input parameter invalid */ + if ((xfer->data == NULL) || (xfer->dataSize == 0U)) + { + return kStatus_InvalidArgument; + } + + if (handle->saiQueue[handle->queueUser].data) + { + return kStatus_SAI_QueueFull; + } + + /* Change the state of handle */ + handle->state = kSAI_Busy; + + /* Update queue state */ + handle->transferSize[handle->queueUser] = xfer->dataSize; + handle->saiQueue[handle->queueUser].data = xfer->data; + handle->saiQueue[handle->queueUser].dataSize = xfer->dataSize; + handle->queueUser = (handle->queueUser + 1) % SAI_XFER_QUEUE_SIZE; + + /* Prepare edma configure */ + EDMA_PrepareTransfer(&config, (void *)srcAddr, handle->bytesPerFrame, xfer->data, handle->bytesPerFrame, + handle->count * handle->bytesPerFrame, xfer->dataSize, kEDMA_PeripheralToMemory); + + EDMA_SubmitTransfer(handle->dmaHandle, &config); + + /* Start DMA transfer */ + EDMA_StartTransfer(handle->dmaHandle); + + /* Enable DMA enable bit */ + SAI_RxEnableDMA(base, kSAI_FIFORequestDMAEnable, true); + + /* Enable SAI Rx clock */ + SAI_RxEnable(base, true); + + return kStatus_Success; +} + +void SAI_TransferAbortSendEDMA(I2S_Type *base, sai_edma_handle_t *handle) +{ + assert(handle); + + /* Disable dma */ + EDMA_AbortTransfer(handle->dmaHandle); + + /* Disable DMA enable bit */ + SAI_TxEnableDMA(base, kSAI_FIFORequestDMAEnable, false); + + /* Set the handle state */ + handle->state = kSAI_Idle; +} + +void SAI_TransferAbortReceiveEDMA(I2S_Type *base, sai_edma_handle_t *handle) +{ + assert(handle); + + /* Disable dma */ + EDMA_AbortTransfer(handle->dmaHandle); + + /* Disable DMA enable bit */ + SAI_RxEnableDMA(base, kSAI_FIFORequestDMAEnable, false); + + /* Set the handle state */ + handle->state = kSAI_Idle; +} + +status_t SAI_TransferGetSendCountEDMA(I2S_Type *base, sai_edma_handle_t *handle, size_t *count) +{ + assert(handle); + + status_t status = kStatus_Success; + + if (handle->state != kSAI_Busy) + { + status = kStatus_NoTransferInProgress; + } + else + { + *count = (handle->transferSize[handle->queueDriver] - + EDMA_GetRemainingBytes(handle->dmaHandle->base, handle->dmaHandle->channel)); + } + + return status; +} + +status_t SAI_TransferGetReceiveCountEDMA(I2S_Type *base, sai_edma_handle_t *handle, size_t *count) +{ + assert(handle); + + status_t status = kStatus_Success; + + if (handle->state != kSAI_Busy) + { + status = kStatus_NoTransferInProgress; + } + else + { + *count = (handle->transferSize[handle->queueDriver] - + EDMA_GetRemainingBytes(handle->dmaHandle->base, handle->dmaHandle->channel)); + } + + return status; +} diff --git a/drivers/fsl_sai_edma.h b/drivers/fsl_sai_edma.h new file mode 100644 index 0000000..03c2e51 --- /dev/null +++ b/drivers/fsl_sai_edma.h @@ -0,0 +1,231 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_SAI_EDMA_H_ +#define _FSL_SAI_EDMA_H_ + +#include "fsl_sai.h" +#include "fsl_edma.h" + +/*! + * @addtogroup sai_edma + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +typedef struct _sai_edma_handle sai_edma_handle_t; + +/*! @brief SAI eDMA transfer callback function for finish and error */ +typedef void (*sai_edma_callback_t)(I2S_Type *base, sai_edma_handle_t *handle, status_t status, void *userData); + +/*! @brief SAI DMA transfer handle, users should not touch the content of the handle.*/ +struct _sai_edma_handle +{ + edma_handle_t *dmaHandle; /*!< DMA handler for SAI send */ + uint8_t bytesPerFrame; /*!< Bytes in a frame */ + uint8_t channel; /*!< Which data channel */ + uint8_t count; /*!< The transfer data count in a DMA request */ + uint32_t state; /*!< Internal state for SAI eDMA transfer */ + sai_edma_callback_t callback; /*!< Callback for users while transfer finish or error occurs */ + void *userData; /*!< User callback parameter */ + edma_tcd_t tcd[SAI_XFER_QUEUE_SIZE + 1U]; /*!< TCD pool for eDMA transfer. */ + sai_transfer_t saiQueue[SAI_XFER_QUEUE_SIZE]; /*!< Transfer queue storing queued transfer. */ + size_t transferSize[SAI_XFER_QUEUE_SIZE]; /*!< Data bytes need to transfer */ + volatile uint8_t queueUser; /*!< Index for user to queue transfer. */ + volatile uint8_t queueDriver; /*!< Index for driver to get the transfer data and size */ +}; + +/******************************************************************************* + * APIs + ******************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name eDMA Transactional + * @{ + */ + +/*! + * @brief Initializes the SAI eDMA handle. + * + * This function initializes the SAI master DMA handle, which can be used for other SAI master transactional APIs. + * Usually, for a specified SAI instance, call this API once to get the initialized handle. + * + * @param base SAI base pointer. + * @param handle SAI eDMA handle pointer. + * @param base SAI peripheral base address. + * @param callback Pointer to user callback function. + * @param userData User parameter passed to the callback function. + * @param dmaHandle eDMA handle pointer, this handle shall be static allocated by users. + */ +void SAI_TransferTxCreateHandleEDMA( + I2S_Type *base, sai_edma_handle_t *handle, sai_edma_callback_t callback, void *userData, edma_handle_t *dmaHandle); + +/*! + * @brief Initializes the SAI Rx eDMA handle. + * + * This function initializes the SAI slave DMA handle, which can be used for other SAI master transactional APIs. + * Usually, for a specified SAI instance, call this API once to get the initialized handle. + * + * @param base SAI base pointer. + * @param handle SAI eDMA handle pointer. + * @param base SAI peripheral base address. + * @param callback Pointer to user callback function. + * @param userData User parameter passed to the callback function. + * @param dmaHandle eDMA handle pointer, this handle shall be static allocated by users. + */ +void SAI_TransferRxCreateHandleEDMA( + I2S_Type *base, sai_edma_handle_t *handle, sai_edma_callback_t callback, void *userData, edma_handle_t *dmaHandle); + +/*! + * @brief Configures the SAI Tx audio format. + * + * The audio format can be changed at run-time. This function configures the sample rate and audio data + * format to be transferred. This function also sets the eDMA parameter according to formatting requirements. + * + * @param base SAI base pointer. + * @param handle SAI eDMA handle pointer. + * @param format Pointer to SAI audio data format structure. + * @param mclkSourceClockHz SAI master clock source frequency in Hz. + * @param bclkSourceClockHz SAI bit clock source frequency in Hz. If bit clock source is master + * clock, this value should equals to masterClockHz in format. + * @retval kStatus_Success Audio format set successfully. + * @retval kStatus_InvalidArgument The input argument is invalid. +*/ +void SAI_TransferTxSetFormatEDMA(I2S_Type *base, + sai_edma_handle_t *handle, + sai_transfer_format_t *format, + uint32_t mclkSourceClockHz, + uint32_t bclkSourceClockHz); + +/*! + * @brief Configures the SAI Rx audio format. + * + * The audio format can be changed at run-time. This function configures the sample rate and audio data + * format to be transferred. This function also sets the eDMA parameter according to formatting requirements. + * + * @param base SAI base pointer. + * @param handle SAI eDMA handle pointer. + * @param format Pointer to SAI audio data format structure. + * @param mclkSourceClockHz SAI master clock source frequency in Hz. + * @param bclkSourceClockHz SAI bit clock source frequency in Hz. If a bit clock source is the master + * clock, this value should equal to masterClockHz in format. + * @retval kStatus_Success Audio format set successfully. + * @retval kStatus_InvalidArgument The input argument is invalid. +*/ +void SAI_TransferRxSetFormatEDMA(I2S_Type *base, + sai_edma_handle_t *handle, + sai_transfer_format_t *format, + uint32_t mclkSourceClockHz, + uint32_t bclkSourceClockHz); + +/*! + * @brief Performs a non-blocking SAI transfer using DMA. + * + * @note This interface returns immediately after the transfer initiates. Call + * SAI_GetTransferStatus to poll the transfer status and check whether the SAI transfer is finished. + * + * @param base SAI base pointer. + * @param handle SAI eDMA handle pointer. + * @param xfer Pointer to the DMA transfer structure. + * @retval kStatus_Success Start a SAI eDMA send successfully. + * @retval kStatus_InvalidArgument The input argument is invalid. + * @retval kStatus_TxBusy SAI is busy sending data. + */ +status_t SAI_TransferSendEDMA(I2S_Type *base, sai_edma_handle_t *handle, sai_transfer_t *xfer); + +/*! + * @brief Performs a non-blocking SAI receive using eDMA. + * + * @note This interface returns immediately after the transfer initiates. Call + * the SAI_GetReceiveRemainingBytes to poll the transfer status and check whether the SAI transfer is finished. + * + * @param base SAI base pointer + * @param handle SAI eDMA handle pointer. + * @param xfer Pointer to DMA transfer structure. + * @retval kStatus_Success Start a SAI eDMA receive successfully. + * @retval kStatus_InvalidArgument The input argument is invalid. + * @retval kStatus_RxBusy SAI is busy receiving data. + */ +status_t SAI_TransferReceiveEDMA(I2S_Type *base, sai_edma_handle_t *handle, sai_transfer_t *xfer); + +/*! + * @brief Aborts a SAI transfer using eDMA. + * + * @param base SAI base pointer. + * @param handle SAI eDMA handle pointer. + */ +void SAI_TransferAbortSendEDMA(I2S_Type *base, sai_edma_handle_t *handle); + +/*! + * @brief Aborts a SAI receive using eDMA. + * + * @param base SAI base pointer + * @param handle SAI eDMA handle pointer. + */ +void SAI_TransferAbortReceiveEDMA(I2S_Type *base, sai_edma_handle_t *handle); + +/*! + * @brief Gets byte count sent by SAI. + * + * @param base SAI base pointer. + * @param handle SAI eDMA handle pointer. + * @param count Bytes count sent by SAI. + * @retval kStatus_Success Succeed get the transfer count. + * @retval kStatus_NoTransferInProgress There is no non-blocking transaction in progress. + */ +status_t SAI_TransferGetSendCountEDMA(I2S_Type *base, sai_edma_handle_t *handle, size_t *count); + +/*! + * @brief Gets byte count received by SAI. + * + * @param base SAI base pointer + * @param handle SAI eDMA handle pointer. + * @param count Bytes count received by SAI. + * @retval kStatus_Success Succeed get the transfer count. + * @retval kStatus_NoTransferInProgress There is no non-blocking transaction in progress. + */ +status_t SAI_TransferGetReceiveCountEDMA(I2S_Type *base, sai_edma_handle_t *handle, size_t *count); + +/*! @} */ + +#if defined(__cplusplus) +} +#endif + +/*! + * @} + */ +#endif diff --git a/drivers/fsl_sdhc.c b/drivers/fsl_sdhc.c new file mode 100644 index 0000000..7697cdc --- /dev/null +++ b/drivers/fsl_sdhc.c @@ -0,0 +1,1297 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this + * list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, + * this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_sdhc.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ +/*! @brief Clock setting */ +/* Max SD clock divisor from base clock */ +#define SDHC_MAX_DVS ((SDHC_SYSCTL_DVS_MASK >> SDHC_SYSCTL_DVS_SHIFT) + 1U) +#define SDHC_INITIAL_DVS (1U) /* Initial value of SD clock divisor */ +#define SDHC_INITIAL_CLKFS (2U) /* Initial value of SD clock frequency selector */ +#define SDHC_NEXT_DVS(x) ((x) += 1U) +#define SDHC_PREV_DVS(x) ((x) -= 1U) +#define SDHC_MAX_CLKFS ((SDHC_SYSCTL_SDCLKFS_MASK >> SDHC_SYSCTL_SDCLKFS_SHIFT) + 1U) +#define SDHC_NEXT_CLKFS(x) ((x) <<= 1U) +#define SDHC_PREV_CLKFS(x) ((x) >>= 1U) + +/*! @brief ADMA table configuration */ +typedef struct _sdhc_adma_table_config +{ + uint32_t *admaTable; /*!< ADMA table address, can't be null if transfer way is ADMA1/ADMA2 */ + uint32_t admaTableWords; /*!< ADMA table length united as words, can't be 0 if transfer way is ADMA1/ADMA2 */ +} sdhc_adma_table_config_t; + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Get the instance. + * + * @param base SDHC peripheral base address. + * @return Instance number. + */ +static uint32_t SDHC_GetInstance(SDHC_Type *base); + +/*! + * @brief Set transfer interrupt. + * + * @param base SDHC peripheral base address. + * @param usingInterruptSignal True to use IRQ signal. + */ +static void SDHC_SetTransferInterrupt(SDHC_Type *base, bool usingInterruptSignal); + +/*! + * @brief Start transfer according to current transfer state + * + * @param base SDHC peripheral base address. + * @param command Command to be sent. + * @param data Data to be transferred. + */ +static void SDHC_StartTransfer(SDHC_Type *base, sdhc_command_t *command, sdhc_data_t *data); + +/*! + * @brief Receive command response + * + * @param base SDHC peripheral base address. + * @param command Command to be sent. + */ +static void SDHC_ReceiveCommandResponse(SDHC_Type *base, sdhc_command_t *command); + +/*! + * @brief Read DATAPORT when buffer enable bit is set. + * + * @param base SDHC peripheral base address. + * @param data Data to be read. + * @param transferredWords The number of data words have been transferred last time transaction. + * @return The number of total data words have been transferred after this time transaction. + */ +static uint32_t SDHC_ReadDataPort(SDHC_Type *base, sdhc_data_t *data, uint32_t transferredWords); + +/*! + * @brief Read data by using DATAPORT polling way. + * + * @param base SDHC peripheral base address. + * @param data Data to be read. + * @retval kStatus_Fail Read DATAPORT failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SDHC_ReadByDataPortBlocking(SDHC_Type *base, sdhc_data_t *data); + +/*! + * @brief Write DATAPORT when buffer enable bit is set. + * + * @param base SDHC peripheral base address. + * @param data Data to be read. + * @param transferredWords The number of data words have been transferred last time. + * @return The number of total data words have been transferred after this time transaction. + */ +static uint32_t SDHC_WriteDataPort(SDHC_Type *base, sdhc_data_t *data, uint32_t transferredWords); + +/*! + * @brief Write data by using DATAPORT polling way. + * + * @param base SDHC peripheral base address. + * @param data Data to be transferred. + * @retval kStatus_Fail Write DATAPORT failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SDHC_WriteByDataPortBlocking(SDHC_Type *base, sdhc_data_t *data); + +/*! + * @brief Send command by using polling way. + * + * @param base SDHC peripheral base address. + * @param command Command to be sent. + * @retval kStatus_Fail Send command failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SDHC_SendCommandBlocking(SDHC_Type *base, sdhc_command_t *command); + +/*! + * @brief Transfer data by DATAPORT and polling way. + * + * @param base SDHC peripheral base address. + * @param data Data to be transferred. + * @retval kStatus_Fail Transfer data failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SDHC_TransferByDataPortBlocking(SDHC_Type *base, sdhc_data_t *data); + +/*! + * @brief Transfer data by ADMA2 and polling way. + * + * @param base SDHC peripheral base address. + * @param data Data to be transferred. + * @retval kStatus_Fail Transfer data failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SDHC_TransferByAdma2Blocking(SDHC_Type *base, sdhc_data_t *data); + +/*! + * @brief Transfer data by polling way. + * + * @param dmaMode DMA mode. + * @param base SDHC peripheral base address. + * @param data Data to be transferred. + * @retval kStatus_Fail Transfer data failed. + * @retval kStatus_InvalidArgument Argument is invalid. + * @retval kStatus_Success Operate successfully. + */ +static status_t SDHC_TransferDataBlocking(sdhc_dma_mode_t dmaMode, SDHC_Type *base, sdhc_data_t *data); + +/*! + * @brief Handle card detect interrupt. + * + * @param handle SDHC handle. + * @param interruptFlags Card detect related interrupt flags. + */ +static void SDHC_TransferHandleCardDetect(sdhc_handle_t *handle, uint32_t interruptFlags); + +/*! + * @brief Handle command interrupt. + * + * @param base SDHC peripheral base address. + * @param handle SDHC handle. + * @param interruptFlags Command related interrupt flags. + */ +static void SDHC_TransferHandleCommand(SDHC_Type *base, sdhc_handle_t *handle, uint32_t interruptFlags); + +/*! + * @brief Handle data interrupt. + * + * @param base SDHC peripheral base address. + * @param handle SDHC handle. + * @param interruptFlags Data related interrupt flags. + */ +static void SDHC_TransferHandleData(SDHC_Type *base, sdhc_handle_t *handle, uint32_t interruptFlags); + +/*! + * @brief Handle SDIO card interrupt signal. + * + * @param handle SDHC handle. + */ +static void SDHC_TransferHandleSdioInterrupt(sdhc_handle_t *handle); + +/*! + * @brief Handle SDIO block gap event. + * + * @param handle SDHC handle. + */ +static void SDHC_TransferHandleSdioBlockGap(sdhc_handle_t *handle); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/*! @brief SDHC internal handle pointer array */ +static sdhc_handle_t *s_sdhcHandle[FSL_FEATURE_SOC_SDHC_COUNT]; + +/*! @brief SDHC base pointer array */ +static SDHC_Type *const s_sdhcBase[] = SDHC_BASE_PTRS; + +/*! @brief SDHC IRQ name array */ +static const IRQn_Type s_sdhcIRQ[] = SDHC_IRQS; + +/*! @brief SDHC clock array name */ +static const clock_ip_name_t s_sdhcClock[] = SDHC_CLOCKS; + +/******************************************************************************* + * Code + ******************************************************************************/ +static uint32_t SDHC_GetInstance(SDHC_Type *base) +{ + uint8_t instance = 0; + + while ((instance < FSL_FEATURE_SOC_SDHC_COUNT) && (s_sdhcBase[instance] != base)) + { + instance++; + } + + assert(instance < FSL_FEATURE_SOC_SDHC_COUNT); + + return instance; +} + +static void SDHC_SetTransferInterrupt(SDHC_Type *base, bool usingInterruptSignal) +{ + uint32_t interruptEnabled; /* The Interrupt status flags to be enabled */ + sdhc_dma_mode_t dmaMode = (sdhc_dma_mode_t)((base->PROCTL & SDHC_PROCTL_DMAS_MASK) >> SDHC_PROCTL_DMAS_SHIFT); + bool cardDetectDat3 = (bool)(base->PROCTL & SDHC_PROCTL_D3CD_MASK); + + /* Disable all interrupts */ + SDHC_DisableInterruptStatus(base, (uint32_t)kSDHC_AllInterruptFlags); + SDHC_DisableInterruptSignal(base, (uint32_t)kSDHC_AllInterruptFlags); + DisableIRQ(s_sdhcIRQ[SDHC_GetInstance(base)]); + + interruptEnabled = + (kSDHC_CommandIndexErrorFlag | kSDHC_CommandCrcErrorFlag | kSDHC_CommandEndBitErrorFlag | + kSDHC_CommandTimeoutFlag | kSDHC_CommandCompleteFlag | kSDHC_DataTimeoutFlag | kSDHC_DataCrcErrorFlag | + kSDHC_DataEndBitErrorFlag | kSDHC_DataCompleteFlag | kSDHC_AutoCommand12ErrorFlag); + if (cardDetectDat3) + { + interruptEnabled |= (kSDHC_CardInsertionFlag | kSDHC_CardRemovalFlag); + } + switch (dmaMode) + { + case kSDHC_DmaModeAdma1: + case kSDHC_DmaModeAdma2: + interruptEnabled |= (kSDHC_DmaErrorFlag | kSDHC_DmaCompleteFlag); + break; + case kSDHC_DmaModeNo: + interruptEnabled |= (kSDHC_BufferReadReadyFlag | kSDHC_BufferWriteReadyFlag); + break; + default: + break; + } + + SDHC_EnableInterruptStatus(base, interruptEnabled); + if (usingInterruptSignal) + { + SDHC_EnableInterruptSignal(base, interruptEnabled); + } +} + +static void SDHC_StartTransfer(SDHC_Type *base, sdhc_command_t *command, sdhc_data_t *data) +{ + assert(command); + + uint32_t flags = 0U; + sdhc_transfer_config_t sdhcTransferConfig; + sdhc_dma_mode_t dmaMode; + + /* Define the flag corresponding to each response type. */ + switch (command->responseType) + { + case kSDHC_ResponseTypeNone: + break; + case kSDHC_ResponseTypeR1: /* Response 1 */ + flags |= (kSDHC_ResponseLength48Flag | kSDHC_EnableCrcCheckFlag | kSDHC_EnableIndexCheckFlag); + break; + case kSDHC_ResponseTypeR1b: /* Response 1 with busy */ + flags |= (kSDHC_ResponseLength48BusyFlag | kSDHC_EnableCrcCheckFlag | kSDHC_EnableIndexCheckFlag); + break; + case kSDHC_ResponseTypeR2: /* Response 2 */ + flags |= (kSDHC_ResponseLength136Flag | kSDHC_EnableCrcCheckFlag); + break; + case kSDHC_ResponseTypeR3: /* Response 3 */ + flags |= (kSDHC_ResponseLength48Flag); + break; + case kSDHC_ResponseTypeR4: /* Response 4 */ + flags |= (kSDHC_ResponseLength48Flag); + break; + case kSDHC_ResponseTypeR5: /* Response 5 */ + flags |= (kSDHC_ResponseLength48Flag | kSDHC_EnableCrcCheckFlag); + break; + case kSDHC_ResponseTypeR5b: /* Response 5 with busy */ + flags |= (kSDHC_ResponseLength48BusyFlag | kSDHC_EnableCrcCheckFlag | kSDHC_EnableIndexCheckFlag); + break; + case kSDHC_ResponseTypeR6: /* Response 6 */ + flags |= (kSDHC_ResponseLength48Flag | kSDHC_EnableCrcCheckFlag | kSDHC_EnableIndexCheckFlag); + break; + case kSDHC_ResponseTypeR7: /* Response 7 */ + flags |= (kSDHC_ResponseLength48Flag | kSDHC_EnableCrcCheckFlag | kSDHC_EnableIndexCheckFlag); + break; + default: + break; + } + if (command->type == kSDHC_CommandTypeAbort) + { + flags |= kSDHC_CommandTypeAbortFlag; + } + + if (data) + { + flags |= kSDHC_DataPresentFlag; + dmaMode = (sdhc_dma_mode_t)((base->PROCTL & SDHC_PROCTL_DMAS_MASK) >> SDHC_PROCTL_DMAS_SHIFT); + if (dmaMode != kSDHC_DmaModeNo) + { + flags |= kSDHC_EnableDmaFlag; + } + if (data->rxData) + { + flags |= kSDHC_DataReadFlag; + } + if (data->blockCount > 1U) + { + flags |= (kSDHC_MultipleBlockFlag | kSDHC_EnableBlockCountFlag); + if (data->enableAutoCommand12) + { + /* Enable Auto command 12. */ + flags |= kSDHC_EnableAutoCommand12Flag; + } + } + if (data->blockCount > SDHC_MAX_BLOCK_COUNT) + { + sdhcTransferConfig.dataBlockSize = data->blockSize; + sdhcTransferConfig.dataBlockCount = SDHC_MAX_BLOCK_COUNT; + + flags &= ~(uint32_t)kSDHC_EnableBlockCountFlag; + } + else + { + sdhcTransferConfig.dataBlockSize = data->blockSize; + sdhcTransferConfig.dataBlockCount = data->blockCount; + } + } + else + { + sdhcTransferConfig.dataBlockSize = 0U; + sdhcTransferConfig.dataBlockCount = 0U; + } + + sdhcTransferConfig.commandArgument = command->argument; + sdhcTransferConfig.commandIndex = command->index; + sdhcTransferConfig.flags = flags; + SDHC_SetTransferConfig(base, &sdhcTransferConfig); +} + +static void SDHC_ReceiveCommandResponse(SDHC_Type *base, sdhc_command_t *command) +{ + assert(command); + + uint32_t i; + + if (command->responseType != kSDHC_ResponseTypeNone) + { + command->response[0U] = SDHC_GetCommandResponse(base, 0U); + if (command->responseType == kSDHC_ResponseTypeR2) + { + command->response[1U] = SDHC_GetCommandResponse(base, 1U); + command->response[2U] = SDHC_GetCommandResponse(base, 2U); + command->response[3U] = SDHC_GetCommandResponse(base, 3U); + + i = 4U; + /* R3-R2-R1-R0(lowest 8 bit is invalid bit) has the same format as R2 format in SD specification document + after removed internal CRC7 and end bit. */ + do + { + command->response[i - 1U] <<= 8U; + if (i > 1U) + { + command->response[i - 1U] |= ((command->response[i - 2U] & 0xFF000000U) >> 24U); + } + } while (i--); + } + } +} + +static uint32_t SDHC_ReadDataPort(SDHC_Type *base, sdhc_data_t *data, uint32_t transferredWords) +{ + assert(data); + + uint32_t i; + uint32_t totalWords; + uint32_t wordsCanBeRead; /* The words can be read at this time. */ + uint32_t readWatermark = ((base->WML & SDHC_WML_RDWML_MASK) >> SDHC_WML_RDWML_SHIFT); + + totalWords = ((data->blockCount * data->blockSize) / sizeof(uint32_t)); + + /* If watermark level is equal or bigger than totalWords, transfers totalWords data. */ + if (readWatermark >= totalWords) + { + wordsCanBeRead = totalWords; + } + /* If watermark level is less than totalWords and left words to be sent is equal or bigger than readWatermark, + transfers watermark level words. */ + else if ((readWatermark < totalWords) && ((totalWords - transferredWords) >= readWatermark)) + { + wordsCanBeRead = readWatermark; + } + /* If watermark level is less than totalWords and left words to be sent is less than readWatermark, transfers left + words. */ + else + { + wordsCanBeRead = (totalWords - transferredWords); + } + + i = 0U; + while (i < wordsCanBeRead) + { + data->rxData[transferredWords++] = SDHC_ReadData(base); + i++; + } + + return transferredWords; +} + +static status_t SDHC_ReadByDataPortBlocking(SDHC_Type *base, sdhc_data_t *data) +{ + assert(data); + + uint32_t totalWords; + uint32_t transferredWords = 0U; + status_t error = kStatus_Success; + + totalWords = ((data->blockCount * data->blockSize) / sizeof(uint32_t)); + + while ((error == kStatus_Success) && (transferredWords < totalWords)) + { + while (!(SDHC_GetInterruptStatusFlags(base) & (kSDHC_BufferReadReadyFlag | kSDHC_DataErrorFlag))) + { + } + + if (SDHC_GetInterruptStatusFlags(base) & kSDHC_DataErrorFlag) + { + if (!(data->enableIgnoreError)) + { + error = kStatus_Fail; + } + } + if (error == kStatus_Success) + { + transferredWords = SDHC_ReadDataPort(base, data, transferredWords); + } + + /* Clear buffer enable flag to trigger transfer. Clear data error flag when SDHC encounter error */ + SDHC_ClearInterruptStatusFlags(base, (kSDHC_BufferReadReadyFlag | kSDHC_DataErrorFlag)); + } + + /* Clear data complete flag after the last read operation. */ + SDHC_ClearInterruptStatusFlags(base, kSDHC_DataCompleteFlag); + + return error; +} + +static uint32_t SDHC_WriteDataPort(SDHC_Type *base, sdhc_data_t *data, uint32_t transferredWords) +{ + assert(data); + + uint32_t i; + uint32_t totalWords; + uint32_t wordsCanBeWrote; /* Words can be wrote at this time. */ + uint32_t writeWatermark = ((base->WML & SDHC_WML_WRWML_MASK) >> SDHC_WML_WRWML_SHIFT); + + totalWords = ((data->blockCount * data->blockSize) / sizeof(uint32_t)); + + /* If watermark level is equal or bigger than totalWords, transfers totalWords data.*/ + if (writeWatermark >= totalWords) + { + wordsCanBeWrote = totalWords; + } + /* If watermark level is less than totalWords and left words to be sent is equal or bigger than watermark, + transfers watermark level words. */ + else if ((writeWatermark < totalWords) && ((totalWords - transferredWords) >= writeWatermark)) + { + wordsCanBeWrote = writeWatermark; + } + /* If watermark level is less than totalWords and left words to be sent is less than watermark, transfers left + words. */ + else + { + wordsCanBeWrote = (totalWords - transferredWords); + } + + i = 0U; + while (i < wordsCanBeWrote) + { + SDHC_WriteData(base, data->txData[transferredWords++]); + i++; + } + + return transferredWords; +} + +static status_t SDHC_WriteByDataPortBlocking(SDHC_Type *base, sdhc_data_t *data) +{ + assert(data); + + uint32_t totalWords; + uint32_t transferredWords = 0U; + status_t error = kStatus_Success; + + totalWords = (data->blockCount * data->blockSize) / sizeof(uint32_t); + + while ((error == kStatus_Success) && (transferredWords < totalWords)) + { + while (!(SDHC_GetInterruptStatusFlags(base) & (kSDHC_BufferWriteReadyFlag | kSDHC_DataErrorFlag))) + { + } + + if (SDHC_GetInterruptStatusFlags(base) & kSDHC_DataErrorFlag) + { + if (!(data->enableIgnoreError)) + { + error = kStatus_Fail; + } + } + if (error == kStatus_Success) + { + transferredWords = SDHC_WriteDataPort(base, data, transferredWords); + } + + /* Clear buffer enable flag to trigger transfer. Clear error flag when SDHC encounter error. */ + SDHC_ClearInterruptStatusFlags(base, (kSDHC_BufferWriteReadyFlag | kSDHC_DataErrorFlag)); + } + + /* Wait write data complete or data transfer error after the last writing operation. */ + while (!(SDHC_GetInterruptStatusFlags(base) & (kSDHC_DataCompleteFlag | kSDHC_DataErrorFlag))) + { + } + if (SDHC_GetInterruptStatusFlags(base) & kSDHC_DataErrorFlag) + { + if (!(data->enableIgnoreError)) + { + error = kStatus_Fail; + } + } + SDHC_ClearInterruptStatusFlags(base, (kSDHC_DataCompleteFlag | kSDHC_DataErrorFlag)); + + return error; +} + +static status_t SDHC_SendCommandBlocking(SDHC_Type *base, sdhc_command_t *command) +{ + assert(command); + + status_t error = kStatus_Success; + + /* Wait command complete or SDHC encounters error. */ + while (!(SDHC_GetInterruptStatusFlags(base) & (kSDHC_CommandCompleteFlag | kSDHC_CommandErrorFlag))) + { + } + + if (SDHC_GetInterruptStatusFlags(base) & kSDHC_CommandErrorFlag) + { + error = kStatus_Fail; + } + /* Receive response when command completes successfully. */ + if (error == kStatus_Success) + { + SDHC_ReceiveCommandResponse(base, command); + } + + SDHC_ClearInterruptStatusFlags(base, (kSDHC_CommandCompleteFlag | kSDHC_CommandErrorFlag)); + + return error; +} + +static status_t SDHC_TransferByDataPortBlocking(SDHC_Type *base, sdhc_data_t *data) +{ + assert(data); + + status_t error = kStatus_Success; + + if (data->rxData) + { + error = SDHC_ReadByDataPortBlocking(base, data); + } + else + { + error = SDHC_WriteByDataPortBlocking(base, data); + } + + return error; +} + +static status_t SDHC_TransferByAdma2Blocking(SDHC_Type *base, sdhc_data_t *data) +{ + status_t error = kStatus_Success; + + /* Wait data complete or SDHC encounters error. */ + while (!(SDHC_GetInterruptStatusFlags(base) & (kSDHC_DataCompleteFlag | kSDHC_DataErrorFlag | kSDHC_DmaErrorFlag))) + { + } + if (SDHC_GetInterruptStatusFlags(base) & (kSDHC_DataErrorFlag | kSDHC_DmaErrorFlag)) + { + if (!(data->enableIgnoreError)) + { + error = kStatus_Fail; + } + } + SDHC_ClearInterruptStatusFlags( + base, (kSDHC_DataCompleteFlag | kSDHC_DmaCompleteFlag | kSDHC_DataErrorFlag | kSDHC_DmaErrorFlag)); + return error; +} + +#if defined FSL_SDHC_ENABLE_ADMA1 +#define SDHC_TransferByAdma1Blocking(base, data) SDHC_TransferByAdma2Blocking(base, data) +#endif /* FSL_SDHC_ENABLE_ADMA1 */ + +static status_t SDHC_TransferDataBlocking(sdhc_dma_mode_t dmaMode, SDHC_Type *base, sdhc_data_t *data) +{ + status_t error = kStatus_Success; + + switch (dmaMode) + { + case kSDHC_DmaModeNo: + error = SDHC_TransferByDataPortBlocking(base, data); + break; +#if defined FSL_SDHC_ENABLE_ADMA1 + case kSDHC_DmaModeAdma1: + error = SDHC_TransferByAdma1Blocking(base, data); + break; +#endif /* FSL_SDHC_ENABLE_ADMA1 */ + case kSDHC_DmaModeAdma2: + error = SDHC_TransferByAdma2Blocking(base, data); + break; + default: + error = kStatus_InvalidArgument; + break; + } + + return error; +} + +static void SDHC_TransferHandleCardDetect(sdhc_handle_t *handle, uint32_t interruptFlags) +{ + assert(interruptFlags & kSDHC_CardDetectFlag); + + if (interruptFlags & kSDHC_CardInsertionFlag) + { + if (handle->callback.CardInserted) + { + handle->callback.CardInserted(); + } + } + else + { + if (handle->callback.CardRemoved) + { + handle->callback.CardRemoved(); + } + } +} + +static void SDHC_TransferHandleCommand(SDHC_Type *base, sdhc_handle_t *handle, uint32_t interruptFlags) +{ + assert(interruptFlags & kSDHC_CommandFlag); + + if ((interruptFlags & kSDHC_CommandErrorFlag) && (!(handle->data)) && (handle->callback.TransferComplete)) + { + handle->callback.TransferComplete(base, handle, kStatus_SDHC_SendCommandFailed, handle->userData); + } + else + { + /* Receive response */ + SDHC_ReceiveCommandResponse(base, handle->command); + if ((!(handle->data)) && (handle->callback.TransferComplete)) + { + handle->callback.TransferComplete(base, handle, kStatus_Success, handle->userData); + } + } +} + +static void SDHC_TransferHandleData(SDHC_Type *base, sdhc_handle_t *handle, uint32_t interruptFlags) +{ + assert(handle->data); + assert(interruptFlags & kSDHC_DataFlag); + + if ((!(handle->data->enableIgnoreError)) && (interruptFlags & (kSDHC_DataErrorFlag | kSDHC_DmaErrorFlag)) && + (handle->callback.TransferComplete)) + { + handle->callback.TransferComplete(base, handle, kStatus_SDHC_TransferDataFailed, handle->userData); + } + else + { + if (interruptFlags & kSDHC_BufferReadReadyFlag) + { + handle->transferredWords = SDHC_ReadDataPort(base, handle->data, handle->transferredWords); + } + else if (interruptFlags & kSDHC_BufferWriteReadyFlag) + { + handle->transferredWords = SDHC_WriteDataPort(base, handle->data, handle->transferredWords); + } + else if ((interruptFlags & kSDHC_DataCompleteFlag) && (handle->callback.TransferComplete)) + { + handle->callback.TransferComplete(base, handle, kStatus_Success, handle->userData); + } + else + { + /* Do nothing when DMA complete flag is set. Wait until data complete flag is set. */ + } + } +} + +static void SDHC_TransferHandleSdioInterrupt(sdhc_handle_t *handle) +{ + if (handle->callback.SdioInterrupt) + { + handle->callback.SdioInterrupt(); + } +} + +static void SDHC_TransferHandleSdioBlockGap(sdhc_handle_t *handle) +{ + if (handle->callback.SdioBlockGap) + { + handle->callback.SdioBlockGap(); + } +} + +void SDHC_Init(SDHC_Type *base, const sdhc_config_t *config) +{ + assert(config); +#if !defined FSL_SDHC_ENABLE_ADMA1 + assert(config->dmaMode != kSDHC_DmaModeAdma1); +#endif /* FSL_SDHC_ENABLE_ADMA1 */ + + uint32_t proctl; + uint32_t wml; + + /* Enable SDHC clock. */ + CLOCK_EnableClock(s_sdhcClock[SDHC_GetInstance(base)]); + + /* Reset SDHC. */ + SDHC_Reset(base, kSDHC_ResetAll, 100); + + proctl = base->PROCTL; + wml = base->WML; + + proctl &= ~(SDHC_PROCTL_D3CD_MASK | SDHC_PROCTL_EMODE_MASK | SDHC_PROCTL_DMAS_MASK); + /* Set DAT3 as card detection pin */ + if (config->cardDetectDat3) + { + proctl |= SDHC_PROCTL_D3CD_MASK; + } + /* Endian mode and DMA mode */ + proctl |= (SDHC_PROCTL_EMODE(config->endianMode) | SDHC_PROCTL_DMAS(config->dmaMode)); + + /* Watermark level */ + wml &= ~(SDHC_WML_RDWML_MASK | SDHC_WML_WRWML_MASK); + wml |= (SDHC_WML_RDWML(config->readWatermarkLevel) | SDHC_WML_WRWML(config->writeWatermarkLevel)); + + base->WML = wml; + base->PROCTL = proctl; + + /* Disable all clock auto gated off feature because of DAT0 line logic(card buffer full status) can't be updated + correctly when clock auto gated off is enabled. */ + base->SYSCTL |= (SDHC_SYSCTL_PEREN_MASK | SDHC_SYSCTL_HCKEN_MASK | SDHC_SYSCTL_IPGEN_MASK); + + /* Enable interrupt status but doesn't enable interrupt signal. */ + SDHC_SetTransferInterrupt(base, false); +} + +void SDHC_Deinit(SDHC_Type *base) +{ + /* Disable clock. */ + CLOCK_DisableClock(s_sdhcClock[SDHC_GetInstance(base)]); +} + +bool SDHC_Reset(SDHC_Type *base, uint32_t mask, uint32_t timeout) +{ + base->SYSCTL |= (mask & (SDHC_SYSCTL_RSTA_MASK | SDHC_SYSCTL_RSTC_MASK | SDHC_SYSCTL_RSTD_MASK)); + /* Delay some time to wait reset success. */ + while ((base->SYSCTL & mask)) + { + if (!timeout) + { + break; + } + timeout--; + } + + return ((!timeout) ? false : true); +} + +void SDHC_GetCapability(SDHC_Type *base, sdhc_capability_t *capability) +{ + assert(capability); + + uint32_t htCapability; + uint32_t hostVer; + uint32_t maxBlockLength; + + hostVer = base->HOSTVER; + htCapability = base->HTCAPBLT; + + /* Get the capability of SDHC. */ + capability->specVersion = ((hostVer & SDHC_HOSTVER_SVN_MASK) >> SDHC_HOSTVER_SVN_SHIFT); + capability->vendorVersion = ((hostVer & SDHC_HOSTVER_VVN_MASK) >> SDHC_HOSTVER_VVN_SHIFT); + maxBlockLength = ((htCapability & SDHC_HTCAPBLT_MBL_MASK) >> SDHC_HTCAPBLT_MBL_SHIFT); + capability->maxBlockLength = (512U << maxBlockLength); + /* Other attributes not in HTCAPBLT register. */ + capability->maxBlockCount = SDHC_MAX_BLOCK_COUNT; + capability->flags = (htCapability & (kSDHC_SupportAdmaFlag | kSDHC_SupportHighSpeedFlag | kSDHC_SupportDmaFlag | + kSDHC_SupportSuspendResumeFlag | kSDHC_SupportV330Flag)); +#if defined FSL_FEATURE_SDHC_HAS_V300_SUPPORT && FSL_FEATURE_SDHC_HAS_V300_SUPPORT + capability->flags |= (htCapability & kSDHC_SupportV300Flag); +#endif +#if defined FSL_FEATURE_SDHC_HAS_V180_SUPPORT && FSL_FEATURE_SDHC_HAS_V180_SUPPORT + capability->flags |= (htCapability & kSDHC_SupportV180Flag); +#endif + /* eSDHC on all kinetis boards will support 4/8 bit data bus width. */ + capability->flags |= (kSDHC_Support4BitFlag | kSDHC_Support8BitFlag); +} + +uint32_t SDHC_SetSdClock(SDHC_Type *base, uint32_t srcClock_Hz, uint32_t busClock_Hz) +{ + assert(busClock_Hz && (busClock_Hz < srcClock_Hz)); + + uint32_t divisor; + uint32_t prescaler; + uint32_t sysctl; + uint32_t nearestFrequency = 0; + + divisor = SDHC_INITIAL_DVS; + prescaler = SDHC_INITIAL_CLKFS; + + /* Disable SD clock. It should be disabled before changing the SD clock frequency.*/ + base->SYSCTL &= ~SDHC_SYSCTL_SDCLKEN_MASK; + + if (busClock_Hz > 0U) + { + while ((srcClock_Hz / prescaler / SDHC_MAX_DVS > busClock_Hz) && (prescaler < SDHC_MAX_CLKFS)) + { + SDHC_NEXT_CLKFS(prescaler); + } + while ((srcClock_Hz / prescaler / divisor > busClock_Hz) && (divisor < SDHC_MAX_DVS)) + { + SDHC_NEXT_DVS(divisor); + } + nearestFrequency = srcClock_Hz / prescaler / divisor; + SDHC_PREV_CLKFS(prescaler); + SDHC_PREV_DVS(divisor); + + /* Set the SD clock frequency divisor, SD clock frequency select, data timeout counter value. */ + sysctl = base->SYSCTL; + sysctl &= ~(SDHC_SYSCTL_DVS_MASK | SDHC_SYSCTL_SDCLKFS_MASK | SDHC_SYSCTL_DTOCV_MASK); + sysctl |= (SDHC_SYSCTL_DVS(divisor) | SDHC_SYSCTL_SDCLKFS(prescaler) | SDHC_SYSCTL_DTOCV(0xEU)); + base->SYSCTL = sysctl; + + /* Wait until the SD clock is stable. */ + while (!(base->PRSSTAT & SDHC_PRSSTAT_SDSTB_MASK)) + { + } + /* Enable the SD clock. */ + base->SYSCTL |= SDHC_SYSCTL_SDCLKEN_MASK; + } + + return nearestFrequency; +} + +bool SDHC_SetCardActive(SDHC_Type *base, uint32_t timeout) +{ + base->SYSCTL |= SDHC_SYSCTL_INITA_MASK; + /* Delay some time to wait card become active state. */ + while (!(base->SYSCTL & SDHC_SYSCTL_INITA_MASK)) + { + if (!timeout) + { + break; + } + timeout--; + } + + return ((!timeout) ? false : true); +} + +void SDHC_SetTransferConfig(SDHC_Type *base, const sdhc_transfer_config_t *config) +{ + assert(config); + + base->BLKATTR = ((base->BLKATTR & ~(SDHC_BLKATTR_BLKSIZE_MASK | SDHC_BLKATTR_BLKCNT_MASK)) | + (SDHC_BLKATTR_BLKSIZE(config->dataBlockSize) | SDHC_BLKATTR_BLKCNT(config->dataBlockCount))); + base->CMDARG = config->commandArgument; + base->XFERTYP = (((config->commandIndex << SDHC_XFERTYP_CMDINX_SHIFT) & SDHC_XFERTYP_CMDINX_MASK) | + (config->flags & (SDHC_XFERTYP_DMAEN_MASK | SDHC_XFERTYP_MSBSEL_MASK | SDHC_XFERTYP_DPSEL_MASK | + SDHC_XFERTYP_CMDTYP_MASK | SDHC_XFERTYP_BCEN_MASK | SDHC_XFERTYP_CICEN_MASK | + SDHC_XFERTYP_CCCEN_MASK | SDHC_XFERTYP_RSPTYP_MASK | SDHC_XFERTYP_DTDSEL_MASK | + SDHC_XFERTYP_AC12EN_MASK))); +} + +void SDHC_EnableSdioControl(SDHC_Type *base, uint32_t mask, bool enable) +{ + uint32_t proctl = base->PROCTL; + uint32_t vendor = base->VENDOR; + + if (enable) + { + if (mask & kSDHC_StopAtBlockGapFlag) + { + proctl |= SDHC_PROCTL_SABGREQ_MASK; + } + if (mask & kSDHC_ReadWaitControlFlag) + { + proctl |= SDHC_PROCTL_RWCTL_MASK; + } + if (mask & kSDHC_InterruptAtBlockGapFlag) + { + proctl |= SDHC_PROCTL_IABG_MASK; + } + if (mask & kSDHC_ExactBlockNumberReadFlag) + { + vendor |= SDHC_VENDOR_EXBLKNU_MASK; + } + } + else + { + if (mask & kSDHC_StopAtBlockGapFlag) + { + proctl &= ~SDHC_PROCTL_SABGREQ_MASK; + } + if (mask & kSDHC_ReadWaitControlFlag) + { + proctl &= ~SDHC_PROCTL_RWCTL_MASK; + } + if (mask & kSDHC_InterruptAtBlockGapFlag) + { + proctl &= ~SDHC_PROCTL_IABG_MASK; + } + if (mask & kSDHC_ExactBlockNumberReadFlag) + { + vendor &= ~SDHC_VENDOR_EXBLKNU_MASK; + } + } + + base->PROCTL = proctl; + base->VENDOR = vendor; +} + +void SDHC_SetMmcBootConfig(SDHC_Type *base, const sdhc_boot_config_t *config) +{ + assert(config); + + uint32_t mmcboot; + + mmcboot = base->MMCBOOT; + mmcboot |= (SDHC_MMCBOOT_DTOCVACK(config->ackTimeoutCount) | SDHC_MMCBOOT_BOOTMODE(config->bootMode) | + SDHC_MMCBOOT_BOOTBLKCNT(config->blockCount)); + if (config->enableBootAck) + { + mmcboot |= SDHC_MMCBOOT_BOOTACK_MASK; + } + if (config->enableBoot) + { + mmcboot |= SDHC_MMCBOOT_BOOTEN_MASK; + } + if (config->enableAutoStopAtBlockGap) + { + mmcboot |= SDHC_MMCBOOT_AUTOSABGEN_MASK; + } + base->MMCBOOT = mmcboot; +} + +status_t SDHC_SetAdmaTableConfig(SDHC_Type *base, + sdhc_dma_mode_t dmaMode, + uint32_t *table, + uint32_t tableWords, + const uint32_t *data, + uint32_t dataBytes) +{ + status_t error = kStatus_Success; + const uint32_t *startAddress; + uint32_t entries; + uint32_t i; +#if defined FSL_SDHC_ENABLE_ADMA1 + sdhc_adma1_descriptor_t *adma1EntryAddress; +#endif + sdhc_adma2_descriptor_t *adma2EntryAddress; + + if ((((!table) || (!tableWords)) && ((dmaMode == kSDHC_DmaModeAdma1) || (dmaMode == kSDHC_DmaModeAdma2))) || + (!data) || (!dataBytes) +#if !defined FSL_SDHC_ENABLE_ADMA1 + || (dmaMode == kSDHC_DmaModeAdma1) +#else + /* Buffer address configured in ADMA1 descriptor must be 4KB aligned. */ + || ((dmaMode == kSDHC_DmaModeAdma1) && (((uint32_t)data % SDHC_ADMA1_LENGTH_ALIGN) != 0U)) +#endif /* FSL_SDHC_ENABLE_ADMA1 */ + ) + { + error = kStatus_InvalidArgument; + } + else + { + switch (dmaMode) + { + case kSDHC_DmaModeNo: + break; +#if defined FSL_SDHC_ENABLE_ADMA1 + case kSDHC_DmaModeAdma1: + startAddress = data; + /* Check if ADMA descriptor's number is enough. */ + entries = ((dataBytes / SDHC_ADMA1_DESCRIPTOR_MAX_LENGTH_PER_ENTRY) + 1U); + /* ADMA1 needs two descriptors to finish a transfer */ + entries <<= 1U; + if (entries > ((tableWords * sizeof(uint32_t)) / sizeof(sdhc_adma1_descriptor_t))) + { + error = kStatus_OutOfRange; + } + else + { + adma1EntryAddress = (sdhc_adma1_descriptor_t *)(table); + for (i = 0U; i < entries; i += 2U) + { + /* Each descriptor for ADMA1 is 32-bit in length */ + if ((dataBytes - sizeof(uint32_t) * (startAddress - data)) <= + SDHC_ADMA1_DESCRIPTOR_MAX_LENGTH_PER_ENTRY) + { + /* The last piece of data, setting end flag in descriptor */ + adma1EntryAddress[i] = ((uint32_t)(dataBytes - sizeof(uint32_t) * (startAddress - data)) + << SDHC_ADMA1_DESCRIPTOR_LENGTH_SHIFT); + adma1EntryAddress[i] |= kSDHC_Adma1DescriptorTypeSetLength; + adma1EntryAddress[i + 1U] = + ((uint32_t)(startAddress) << SDHC_ADMA1_DESCRIPTOR_ADDRESS_SHIFT); + adma1EntryAddress[i + 1U] |= + (kSDHC_Adma1DescriptorTypeTransfer | kSDHC_Adma1DescriptorEndFlag); + } + else + { + adma1EntryAddress[i] = ((uint32_t)SDHC_ADMA1_DESCRIPTOR_MAX_LENGTH_PER_ENTRY + << SDHC_ADMA1_DESCRIPTOR_LENGTH_SHIFT); + adma1EntryAddress[i] |= kSDHC_Adma1DescriptorTypeSetLength; + adma1EntryAddress[i + 1U] = + ((uint32_t)(startAddress) << SDHC_ADMA1_DESCRIPTOR_ADDRESS_SHIFT); + adma1EntryAddress[i + 1U] |= kSDHC_Adma1DescriptorTypeTransfer; + startAddress += SDHC_ADMA1_DESCRIPTOR_MAX_LENGTH_PER_ENTRY / sizeof(uint32_t); + } + } + + /* When use ADMA, disable simple DMA */ + base->DSADDR = 0U; + base->ADSADDR = (uint32_t)table; + } + break; +#endif /* FSL_SDHC_ENABLE_ADMA1 */ + case kSDHC_DmaModeAdma2: + startAddress = data; + /* Check if ADMA descriptor's number is enough. */ + entries = ((dataBytes / SDHC_ADMA2_DESCRIPTOR_MAX_LENGTH_PER_ENTRY) + 1U); + if (entries > ((tableWords * sizeof(uint32_t)) / sizeof(sdhc_adma2_descriptor_t))) + { + error = kStatus_OutOfRange; + } + else + { + adma2EntryAddress = (sdhc_adma2_descriptor_t *)(table); + for (i = 0U; i < entries; i++) + { + /* Each descriptor for ADMA2 is 64-bit in length */ + if ((dataBytes - sizeof(uint32_t) * (startAddress - data)) <= + SDHC_ADMA2_DESCRIPTOR_MAX_LENGTH_PER_ENTRY) + { + /* The last piece of data, setting end flag in descriptor */ + adma2EntryAddress[i].address = startAddress; + adma2EntryAddress[i].attribute = ((dataBytes - sizeof(uint32_t) * (startAddress - data)) + << SDHC_ADMA2_DESCRIPTOR_LENGTH_SHIFT); + adma2EntryAddress[i].attribute |= + (kSDHC_Adma2DescriptorTypeTransfer | kSDHC_Adma2DescriptorEndFlag); + } + else + { + adma2EntryAddress[i].address = startAddress; + adma2EntryAddress[i].attribute = + (((SDHC_ADMA2_DESCRIPTOR_MAX_LENGTH_PER_ENTRY / sizeof(uint32_t)) * sizeof(uint32_t)) + << SDHC_ADMA2_DESCRIPTOR_LENGTH_SHIFT); + adma2EntryAddress[i].attribute |= kSDHC_Adma2DescriptorTypeTransfer; + startAddress += (SDHC_ADMA2_DESCRIPTOR_MAX_LENGTH_PER_ENTRY / sizeof(uint32_t)); + } + } + + /* When use ADMA, disable simple DMA */ + base->DSADDR = 0U; + base->ADSADDR = (uint32_t)table; + } + break; + default: + break; + } + } + + return error; +} + +status_t SDHC_TransferBlocking(SDHC_Type *base, uint32_t *admaTable, uint32_t admaTableWords, sdhc_transfer_t *transfer) +{ + assert(transfer); + assert(transfer->command); /* Command must not be NULL, data can be NULL. */ + + status_t error = kStatus_Success; + sdhc_dma_mode_t dmaMode = (sdhc_dma_mode_t)((base->PROCTL & SDHC_PROCTL_DMAS_MASK) >> SDHC_PROCTL_DMAS_SHIFT); + sdhc_command_t *command = transfer->command; + sdhc_data_t *data = transfer->data; + + /* DATA-PORT is 32-bit align, ADMA2 4 bytes align, ADMA1 is 4096 bytes align */ + if ((!command) || (data && (data->blockSize % 4U))) + { + error = kStatus_InvalidArgument; + } + else + { + /* Wait until command/data bus out of busy status. */ + while (SDHC_GetPresentStatusFlags(base) & kSDHC_CommandInhibitFlag) + { + } + while (data && (SDHC_GetPresentStatusFlags(base) & kSDHC_DataInhibitFlag)) + { + } + + /* Update ADMA descriptor table if data isn't NULL. */ + if (data && (kStatus_Success != SDHC_SetAdmaTableConfig(base, dmaMode, admaTable, admaTableWords, + (data->rxData ? data->rxData : data->txData), + (data->blockCount * data->blockSize)))) + { + error = kStatus_SDHC_PrepareAdmaDescriptorFailed; + } + else + { + SDHC_StartTransfer(base, command, data); + + /* Send command and receive data. */ + if (kStatus_Success != SDHC_SendCommandBlocking(base, command)) + { + error = kStatus_SDHC_SendCommandFailed; + } + else if (data && (kStatus_Success != SDHC_TransferDataBlocking(dmaMode, base, data))) + { + error = kStatus_SDHC_TransferDataFailed; + } + else + { + } + } + } + + return error; +} + +void SDHC_TransferCreateHandle(SDHC_Type *base, + sdhc_handle_t *handle, + const sdhc_transfer_callback_t *callback, + void *userData) +{ + assert(handle); + assert(callback); + + /* Zero the handle. */ + memset(handle, 0, sizeof(*handle)); + + /* Set the callback. */ + handle->callback.CardInserted = callback->CardInserted; + handle->callback.CardRemoved = callback->CardRemoved; + handle->callback.SdioInterrupt = callback->SdioInterrupt; + handle->callback.SdioBlockGap = callback->SdioBlockGap; + handle->callback.TransferComplete = callback->TransferComplete; + handle->userData = userData; + + /* Save the handle in global variables to support the double weak mechanism. */ + s_sdhcHandle[SDHC_GetInstance(base)] = handle; + + /* Enable interrupt in NVIC. */ + SDHC_SetTransferInterrupt(base, true); + EnableIRQ(s_sdhcIRQ[SDHC_GetInstance(base)]); +} + +status_t SDHC_TransferNonBlocking( + SDHC_Type *base, sdhc_handle_t *handle, uint32_t *admaTable, uint32_t admaTableWords, sdhc_transfer_t *transfer) +{ + assert(transfer); + + sdhc_dma_mode_t dmaMode = (sdhc_dma_mode_t)((base->PROCTL & SDHC_PROCTL_DMAS_MASK) >> SDHC_PROCTL_DMAS_SHIFT); + status_t error = kStatus_Success; + sdhc_command_t *command = transfer->command; + sdhc_data_t *data = transfer->data; + + /* DATA-PORT is 32-bit align, ADMA2 4 bytes align, ADMA1 is 4096 bytes align */ + if ((!(transfer->command)) || ((transfer->data) && (transfer->data->blockSize % 4U))) + { + error = kStatus_InvalidArgument; + } + else + { + /* Wait until command/data bus out of busy status. */ + if ((SDHC_GetPresentStatusFlags(base) & kSDHC_CommandInhibitFlag) || + (data && (SDHC_GetPresentStatusFlags(base) & kSDHC_DataInhibitFlag))) + { + error = kStatus_SDHC_BusyTransferring; + } + else + { + /* Update ADMA descriptor table and reset transferred words if data isn't NULL. */ + if (data && (kStatus_Success != SDHC_SetAdmaTableConfig(base, dmaMode, admaTable, admaTableWords, + (data->rxData ? data->rxData : data->txData), + (data->blockCount * data->blockSize)))) + { + error = kStatus_SDHC_PrepareAdmaDescriptorFailed; + } + else + { + /* Save command and data into handle before transferring. */ + handle->command = command; + handle->data = data; + handle->interruptFlags = 0U; + /* transferredWords will only be updated in ISR when transfer way is DATAPORT. */ + handle->transferredWords = 0U; + SDHC_StartTransfer(base, command, data); + } + } + } + + return error; +} + +void SDHC_TransferHandleIRQ(SDHC_Type *base, sdhc_handle_t *handle) +{ + assert(handle); + + uint32_t interruptFlags; + + interruptFlags = SDHC_GetInterruptStatusFlags(base); + handle->interruptFlags = interruptFlags; + + if (interruptFlags & kSDHC_CardDetectFlag) + { + SDHC_TransferHandleCardDetect(handle, (interruptFlags & kSDHC_CardDetectFlag)); + } + if (interruptFlags & kSDHC_CommandFlag) + { + SDHC_TransferHandleCommand(base, handle, (interruptFlags & kSDHC_CommandFlag)); + } + if (interruptFlags & kSDHC_DataFlag) + { + SDHC_TransferHandleData(base, handle, (interruptFlags & kSDHC_DataFlag)); + } + if (interruptFlags & kSDHC_CardInterruptFlag) + { + SDHC_TransferHandleSdioInterrupt(handle); + } + if (interruptFlags & kSDHC_BlockGapEventFlag) + { + SDHC_TransferHandleSdioBlockGap(handle); + } + + SDHC_ClearInterruptStatusFlags(base, interruptFlags); +} + +#if defined(SDHC) +void SDHC_DriverIRQHandler(void) +{ + assert(s_sdhcHandle[0]); + + SDHC_TransferHandleIRQ(SDHC, s_sdhcHandle[0]); +} +#endif diff --git a/drivers/fsl_sdhc.h b/drivers/fsl_sdhc.h new file mode 100644 index 0000000..2c5c61d --- /dev/null +++ b/drivers/fsl_sdhc.h @@ -0,0 +1,1081 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_SDHC_H_ +#define _FSL_SDHC_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup sdhc + * @{ + */ + + +/****************************************************************************** + * Definitions. + *****************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief Driver version 2.1.1. */ +#define FSL_SDHC_DRIVER_VERSION (MAKE_VERSION(2U, 1U, 1U)) +/*@}*/ + +/*! @brief Maximum block count can be set one time */ +#define SDHC_MAX_BLOCK_COUNT (SDHC_BLKATTR_BLKCNT_MASK >> SDHC_BLKATTR_BLKCNT_SHIFT) + +/*! @brief SDHC status */ +enum _sdhc_status +{ + kStatus_SDHC_BusyTransferring = MAKE_STATUS(kStatusGroup_SDHC, 0U), /*!< Transfer is on-going */ + kStatus_SDHC_PrepareAdmaDescriptorFailed = MAKE_STATUS(kStatusGroup_SDHC, 1U), /*!< Set DMA descriptor failed */ + kStatus_SDHC_SendCommandFailed = MAKE_STATUS(kStatusGroup_SDHC, 2U), /*!< Send command failed */ + kStatus_SDHC_TransferDataFailed = MAKE_STATUS(kStatusGroup_SDHC, 3U), /*!< Transfer data failed */ +}; + +/*! @brief Host controller capabilities flag mask */ +enum _sdhc_capability_flag +{ + kSDHC_SupportAdmaFlag = SDHC_HTCAPBLT_ADMAS_MASK, /*!< Support ADMA */ + kSDHC_SupportHighSpeedFlag = SDHC_HTCAPBLT_HSS_MASK, /*!< Support high-speed */ + kSDHC_SupportDmaFlag = SDHC_HTCAPBLT_DMAS_MASK, /*!< Support DMA */ + kSDHC_SupportSuspendResumeFlag = SDHC_HTCAPBLT_SRS_MASK, /*!< Support suspend/resume */ + kSDHC_SupportV330Flag = SDHC_HTCAPBLT_VS33_MASK, /*!< Support voltage 3.3V */ +#if defined FSL_FEATURE_SDHC_HAS_V300_SUPPORT && FSL_FEATURE_SDHC_HAS_V300_SUPPORT + kSDHC_SupportV300Flag = SDHC_HTCAPBLT_VS30_MASK, /*!< Support voltage 3.0V */ +#endif +#if defined FSL_FEATURE_SDHC_HAS_V180_SUPPORT && FSL_FEATURE_SDHC_HAS_V180_SUPPORT + kSDHC_SupportV180Flag = SDHC_HTCAPBLT_VS18_MASK, /*!< Support voltage 1.8V */ +#endif + /* Put additional two flags in HTCAPBLT_MBL's position. */ + kSDHC_Support4BitFlag = (SDHC_HTCAPBLT_MBL_SHIFT << 0U), /*!< Support 4 bit mode */ + kSDHC_Support8BitFlag = (SDHC_HTCAPBLT_MBL_SHIFT << 1U), /*!< Support 8 bit mode */ +}; + +/*! @brief Wakeup event mask */ +enum _sdhc_wakeup_event +{ + kSDHC_WakeupEventOnCardInt = SDHC_PROCTL_WECINT_MASK, /*!< Wakeup on card interrupt */ + kSDHC_WakeupEventOnCardInsert = SDHC_PROCTL_WECINS_MASK, /*!< Wakeup on card insertion */ + kSDHC_WakeupEventOnCardRemove = SDHC_PROCTL_WECRM_MASK, /*!< Wakeup on card removal */ + + kSDHC_WakeupEventsAll = (kSDHC_WakeupEventOnCardInt | kSDHC_WakeupEventOnCardInsert | + kSDHC_WakeupEventOnCardRemove), /*!< All wakeup events */ +}; + +/*! @brief Reset type mask */ +enum _sdhc_reset +{ + kSDHC_ResetAll = SDHC_SYSCTL_RSTA_MASK, /*!< Reset all except card detection */ + kSDHC_ResetCommand = SDHC_SYSCTL_RSTC_MASK, /*!< Reset command line */ + kSDHC_ResetData = SDHC_SYSCTL_RSTD_MASK, /*!< Reset data line */ + + kSDHC_ResetsAll = (kSDHC_ResetAll | kSDHC_ResetCommand | kSDHC_ResetData), /*!< All reset types */ +}; + +/*! @brief Transfer flag mask */ +enum _sdhc_transfer_flag +{ + kSDHC_EnableDmaFlag = SDHC_XFERTYP_DMAEN_MASK, /*!< Enable DMA */ + + kSDHC_CommandTypeSuspendFlag = (SDHC_XFERTYP_CMDTYP(1U)), /*!< Suspend command */ + kSDHC_CommandTypeResumeFlag = (SDHC_XFERTYP_CMDTYP(2U)), /*!< Resume command */ + kSDHC_CommandTypeAbortFlag = (SDHC_XFERTYP_CMDTYP(3U)), /*!< Abort command */ + + kSDHC_EnableBlockCountFlag = SDHC_XFERTYP_BCEN_MASK, /*!< Enable block count */ + kSDHC_EnableAutoCommand12Flag = SDHC_XFERTYP_AC12EN_MASK, /*!< Enable auto CMD12 */ + kSDHC_DataReadFlag = SDHC_XFERTYP_DTDSEL_MASK, /*!< Enable data read */ + kSDHC_MultipleBlockFlag = SDHC_XFERTYP_MSBSEL_MASK, /*!< Multiple block data read/write */ + + kSDHC_ResponseLength136Flag = SDHC_XFERTYP_RSPTYP(1U), /*!< 136 bit response length */ + kSDHC_ResponseLength48Flag = SDHC_XFERTYP_RSPTYP(2U), /*!< 48 bit response length */ + kSDHC_ResponseLength48BusyFlag = SDHC_XFERTYP_RSPTYP(3U), /*!< 48 bit response length with busy status */ + + kSDHC_EnableCrcCheckFlag = SDHC_XFERTYP_CCCEN_MASK, /*!< Enable CRC check */ + kSDHC_EnableIndexCheckFlag = SDHC_XFERTYP_CICEN_MASK, /*!< Enable index check */ + kSDHC_DataPresentFlag = SDHC_XFERTYP_DPSEL_MASK, /*!< Data present flag */ +}; + +/*! @brief Present status flag mask */ +enum _sdhc_present_status_flag +{ + kSDHC_CommandInhibitFlag = SDHC_PRSSTAT_CIHB_MASK, /*!< Command inhibit */ + kSDHC_DataInhibitFlag = SDHC_PRSSTAT_CDIHB_MASK, /*!< Data inhibit */ + kSDHC_DataLineActiveFlag = SDHC_PRSSTAT_DLA_MASK, /*!< Data line active */ + kSDHC_SdClockStableFlag = SDHC_PRSSTAT_SDSTB_MASK, /*!< SD bus clock stable */ + kSDHC_WriteTransferActiveFlag = SDHC_PRSSTAT_WTA_MASK, /*!< Write transfer active */ + kSDHC_ReadTransferActiveFlag = SDHC_PRSSTAT_RTA_MASK, /*!< Read transfer active */ + kSDHC_BufferWriteEnableFlag = SDHC_PRSSTAT_BWEN_MASK, /*!< Buffer write enable */ + kSDHC_BufferReadEnableFlag = SDHC_PRSSTAT_BREN_MASK, /*!< Buffer read enable */ + kSDHC_CardInsertedFlag = SDHC_PRSSTAT_CINS_MASK, /*!< Card inserted */ + kSDHC_CommandLineLevelFlag = SDHC_PRSSTAT_CLSL_MASK, /*!< Command line signal level */ + kSDHC_Data0LineLevelFlag = (1U << 24U), /*!< Data0 line signal level */ + kSDHC_Data1LineLevelFlag = (1U << 25U), /*!< Data1 line signal level */ + kSDHC_Data2LineLevelFlag = (1U << 26U), /*!< Data2 line signal level */ + kSDHC_Data3LineLevelFlag = (1U << 27U), /*!< Data3 line signal level */ + kSDHC_Data4LineLevelFlag = (1U << 28U), /*!< Data4 line signal level */ + kSDHC_Data5LineLevelFlag = (1U << 29U), /*!< Data5 line signal level */ + kSDHC_Data6LineLevelFlag = (1U << 30U), /*!< Data6 line signal level */ + kSDHC_Data7LineLevelFlag = (1U << 31U), /*!< Data7 line signal level */ +}; + +/*! @brief Interrupt status flag mask */ +enum _sdhc_interrupt_status_flag +{ + kSDHC_CommandCompleteFlag = SDHC_IRQSTAT_CC_MASK, /*!< Command complete */ + kSDHC_DataCompleteFlag = SDHC_IRQSTAT_TC_MASK, /*!< Data complete */ + kSDHC_BlockGapEventFlag = SDHC_IRQSTAT_BGE_MASK, /*!< Block gap event */ + kSDHC_DmaCompleteFlag = SDHC_IRQSTAT_DINT_MASK, /*!< DMA interrupt */ + kSDHC_BufferWriteReadyFlag = SDHC_IRQSTAT_BWR_MASK, /*!< Buffer write ready */ + kSDHC_BufferReadReadyFlag = SDHC_IRQSTAT_BRR_MASK, /*!< Buffer read ready */ + kSDHC_CardInsertionFlag = SDHC_IRQSTAT_CINS_MASK, /*!< Card inserted */ + kSDHC_CardRemovalFlag = SDHC_IRQSTAT_CRM_MASK, /*!< Card removed */ + kSDHC_CardInterruptFlag = SDHC_IRQSTAT_CINT_MASK, /*!< Card interrupt */ + kSDHC_CommandTimeoutFlag = SDHC_IRQSTAT_CTOE_MASK, /*!< Command timeout error */ + kSDHC_CommandCrcErrorFlag = SDHC_IRQSTAT_CCE_MASK, /*!< Command CRC error */ + kSDHC_CommandEndBitErrorFlag = SDHC_IRQSTAT_CEBE_MASK, /*!< Command end bit error */ + kSDHC_CommandIndexErrorFlag = SDHC_IRQSTAT_CIE_MASK, /*!< Command index error */ + kSDHC_DataTimeoutFlag = SDHC_IRQSTAT_DTOE_MASK, /*!< Data timeout error */ + kSDHC_DataCrcErrorFlag = SDHC_IRQSTAT_DCE_MASK, /*!< Data CRC error */ + kSDHC_DataEndBitErrorFlag = SDHC_IRQSTAT_DEBE_MASK, /*!< Data end bit error */ + kSDHC_AutoCommand12ErrorFlag = SDHC_IRQSTAT_AC12E_MASK, /*!< Auto CMD12 error */ + kSDHC_DmaErrorFlag = SDHC_IRQSTAT_DMAE_MASK, /*!< DMA error */ + + kSDHC_CommandErrorFlag = (kSDHC_CommandTimeoutFlag | kSDHC_CommandCrcErrorFlag | kSDHC_CommandEndBitErrorFlag | + kSDHC_CommandIndexErrorFlag), /*!< Command error */ + kSDHC_DataErrorFlag = (kSDHC_DataTimeoutFlag | kSDHC_DataCrcErrorFlag | kSDHC_DataEndBitErrorFlag | + kSDHC_AutoCommand12ErrorFlag), /*!< Data error */ + kSDHC_ErrorFlag = (kSDHC_CommandErrorFlag | kSDHC_DataErrorFlag | kSDHC_DmaErrorFlag), /*!< All error */ + kSDHC_DataFlag = (kSDHC_DataCompleteFlag | kSDHC_DmaCompleteFlag | kSDHC_BufferWriteReadyFlag | + kSDHC_BufferReadReadyFlag | kSDHC_DataErrorFlag | kSDHC_DmaErrorFlag), /*!< Data interrupts */ + kSDHC_CommandFlag = (kSDHC_CommandErrorFlag | kSDHC_CommandCompleteFlag), /*!< Command interrupts */ + kSDHC_CardDetectFlag = (kSDHC_CardInsertionFlag | kSDHC_CardRemovalFlag), /*!< Card detection interrupts */ + + kSDHC_AllInterruptFlags = (kSDHC_BlockGapEventFlag | kSDHC_CardInterruptFlag | kSDHC_CommandFlag | kSDHC_DataFlag | + kSDHC_ErrorFlag), /*!< All flags mask */ +}; + +/*! @brief Auto CMD12 error status flag mask */ +enum _sdhc_auto_command12_error_status_flag +{ + kSDHC_AutoCommand12NotExecutedFlag = SDHC_AC12ERR_AC12NE_MASK, /*!< Not executed error */ + kSDHC_AutoCommand12TimeoutFlag = SDHC_AC12ERR_AC12TOE_MASK, /*!< Timeout error */ + kSDHC_AutoCommand12EndBitErrorFlag = SDHC_AC12ERR_AC12EBE_MASK, /*!< End bit error */ + kSDHC_AutoCommand12CrcErrorFlag = SDHC_AC12ERR_AC12CE_MASK, /*!< CRC error */ + kSDHC_AutoCommand12IndexErrorFlag = SDHC_AC12ERR_AC12IE_MASK, /*!< Index error */ + kSDHC_AutoCommand12NotIssuedFlag = SDHC_AC12ERR_CNIBAC12E_MASK, /*!< Not issued error */ +}; + +/*! @brief ADMA error status flag mask */ +enum _sdhc_adma_error_status_flag +{ + kSDHC_AdmaLenghMismatchFlag = SDHC_ADMAES_ADMALME_MASK, /*!< Length mismatch error */ + kSDHC_AdmaDescriptorErrorFlag = SDHC_ADMAES_ADMADCE_MASK, /*!< Descriptor error */ +}; + +/*! + * @brief ADMA error state + * + * This state is the detail state when ADMA error has occurred. + */ +typedef enum _sdhc_adma_error_state +{ + kSDHC_AdmaErrorStateStopDma = 0x00U, /*!< Stop DMA */ + kSDHC_AdmaErrorStateFetchDescriptor = 0x01U, /*!< Fetch descriptor */ + kSDHC_AdmaErrorStateChangeAddress = 0x02U, /*!< Change address */ + kSDHC_AdmaErrorStateTransferData = 0x03U, /*!< Transfer data */ +} sdhc_adma_error_state_t; + +/*! @brief Force event mask */ +enum _sdhc_force_event +{ + kSDHC_ForceEventAutoCommand12NotExecuted = SDHC_FEVT_AC12NE_MASK, /*!< Auto CMD12 not executed error */ + kSDHC_ForceEventAutoCommand12Timeout = SDHC_FEVT_AC12TOE_MASK, /*!< Auto CMD12 timeout error */ + kSDHC_ForceEventAutoCommand12CrcError = SDHC_FEVT_AC12CE_MASK, /*!< Auto CMD12 CRC error */ + kSDHC_ForceEventEndBitError = SDHC_FEVT_AC12EBE_MASK, /*!< Auto CMD12 end bit error */ + kSDHC_ForceEventAutoCommand12IndexError = SDHC_FEVT_AC12IE_MASK, /*!< Auto CMD12 index error */ + kSDHC_ForceEventAutoCommand12NotIssued = SDHC_FEVT_CNIBAC12E_MASK, /*!< Auto CMD12 not issued error */ + kSDHC_ForceEventCommandTimeout = SDHC_FEVT_CTOE_MASK, /*!< Command timeout error */ + kSDHC_ForceEventCommandCrcError = SDHC_FEVT_CCE_MASK, /*!< Command CRC error */ + kSDHC_ForceEventCommandEndBitError = SDHC_FEVT_CEBE_MASK, /*!< Command end bit error */ + kSDHC_ForceEventCommandIndexError = SDHC_FEVT_CIE_MASK, /*!< Command index error */ + kSDHC_ForceEventDataTimeout = SDHC_FEVT_DTOE_MASK, /*!< Data timeout error */ + kSDHC_ForceEventDataCrcError = SDHC_FEVT_DCE_MASK, /*!< Data CRC error */ + kSDHC_ForceEventDataEndBitError = SDHC_FEVT_DEBE_MASK, /*!< Data end bit error */ + kSDHC_ForceEventAutoCommand12Error = SDHC_FEVT_AC12E_MASK, /*!< Auto CMD12 error */ + kSDHC_ForceEventCardInt = SDHC_FEVT_CINT_MASK, /*!< Card interrupt */ + kSDHC_ForceEventDmaError = SDHC_FEVT_DMAE_MASK, /*!< Dma error */ + + kSDHC_ForceEventsAll = + (kSDHC_ForceEventAutoCommand12NotExecuted | kSDHC_ForceEventAutoCommand12Timeout | + kSDHC_ForceEventAutoCommand12CrcError | kSDHC_ForceEventEndBitError | kSDHC_ForceEventAutoCommand12IndexError | + kSDHC_ForceEventAutoCommand12NotIssued | kSDHC_ForceEventCommandTimeout | kSDHC_ForceEventCommandCrcError | + kSDHC_ForceEventCommandEndBitError | kSDHC_ForceEventCommandIndexError | kSDHC_ForceEventDataTimeout | + kSDHC_ForceEventDataCrcError | kSDHC_ForceEventDataEndBitError | kSDHC_ForceEventAutoCommand12Error | + kSDHC_ForceEventCardInt | kSDHC_ForceEventDmaError), /*!< All force event flags mask */ +}; + +/*! @brief Data transfer width */ +typedef enum _sdhc_data_bus_width +{ + kSDHC_DataBusWidth1Bit = 0U, /*!< 1-bit mode */ + kSDHC_DataBusWidth4Bit = 1U, /*!< 4-bit mode */ + kSDHC_DataBusWidth8Bit = 2U, /*!< 8-bit mode */ +} sdhc_data_bus_width_t; + +/*! @brief Endian mode */ +typedef enum _sdhc_endian_mode +{ + kSDHC_EndianModeBig = 0U, /*!< Big endian mode */ + kSDHC_EndianModeHalfWordBig = 1U, /*!< Half word big endian mode */ + kSDHC_EndianModeLittle = 2U, /*!< Little endian mode */ +} sdhc_endian_mode_t; + +/*! @brief DMA mode */ +typedef enum _sdhc_dma_mode +{ + kSDHC_DmaModeNo = 0U, /*!< No DMA */ + kSDHC_DmaModeAdma1 = 1U, /*!< ADMA1 is selected */ + kSDHC_DmaModeAdma2 = 2U, /*!< ADMA2 is selected */ +} sdhc_dma_mode_t; + +/*! @brief SDIO control flag mask */ +enum _sdhc_sdio_control_flag +{ + kSDHC_StopAtBlockGapFlag = 0x01, /*!< Stop at block gap */ + kSDHC_ReadWaitControlFlag = 0x02, /*!< Read wait control */ + kSDHC_InterruptAtBlockGapFlag = 0x04, /*!< Interrupt at block gap */ + kSDHC_ExactBlockNumberReadFlag = 0x08, /*!< Exact block number read */ +}; + +/*! @brief MMC card boot mode */ +typedef enum _sdhc_boot_mode +{ + kSDHC_BootModeNormal = 0U, /*!< Normal boot */ + kSDHC_BootModeAlternative = 1U, /*!< Alternative boot */ +} sdhc_boot_mode_t; + +/*! @brief The command type */ +typedef enum _sdhc_command_type +{ + kSDHC_CommandTypeNormal = 0U, /*!< Normal command */ + kSDHC_CommandTypeSuspend = 1U, /*!< Suspend command */ + kSDHC_CommandTypeResume = 2U, /*!< Resume command */ + kSDHC_CommandTypeAbort = 3U, /*!< Abort command */ +} sdhc_command_type_t; + +/*! + * @brief The command response type. + * + * Define the command response type from card to host controller. + */ +typedef enum _sdhc_response_type +{ + kSDHC_ResponseTypeNone = 0U, /*!< Response type: none */ + kSDHC_ResponseTypeR1 = 1U, /*!< Response type: R1 */ + kSDHC_ResponseTypeR1b = 2U, /*!< Response type: R1b */ + kSDHC_ResponseTypeR2 = 3U, /*!< Response type: R2 */ + kSDHC_ResponseTypeR3 = 4U, /*!< Response type: R3 */ + kSDHC_ResponseTypeR4 = 5U, /*!< Response type: R4 */ + kSDHC_ResponseTypeR5 = 6U, /*!< Response type: R5 */ + kSDHC_ResponseTypeR5b = 7U, /*!< Response type: R5b */ + kSDHC_ResponseTypeR6 = 8U, /*!< Response type: R6 */ + kSDHC_ResponseTypeR7 = 9U, /*!< Response type: R7 */ +} sdhc_response_type_t; + +/*! @brief The alignment size for ADDRESS filed in ADMA1's descriptor */ +#define SDHC_ADMA1_ADDRESS_ALIGN (4096U) +/*! @brief The alignment size for LENGTH field in ADMA1's descriptor */ +#define SDHC_ADMA1_LENGTH_ALIGN (4096U) +/*! @brief The alignment size for ADDRESS field in ADMA2's descriptor */ +#define SDHC_ADMA2_ADDRESS_ALIGN (4U) +/*! @brief The alignment size for LENGTH filed in ADMA2's descriptor */ +#define SDHC_ADMA2_LENGTH_ALIGN (4U) + +/* ADMA1 descriptor table + * |------------------------|---------|--------------------------| + * | Address/page field |Reserved | Attribute | + * |------------------------|---------|--------------------------| + * |31 12|11 6|05 |04 |03|02 |01 |00 | + * |------------------------|---------|----|----|--|---|---|-----| + * | address or data length | 000000 |Act2|Act1| 0|Int|End|Valid| + * |------------------------|---------|----|----|--|---|---|-----| + * + * + * |------|------|-----------------|-------|-------------| + * | Act2 | Act1 | Comment | 31-28 | 27 - 12 | + * |------|------|-----------------|---------------------| + * | 0 | 0 | No op | Don't care | + * |------|------|-----------------|-------|-------------| + * | 0 | 1 | Set data length | 0000 | Data Length | + * |------|------|-----------------|-------|-------------| + * | 1 | 0 | Transfer data | Data address | + * |------|------|-----------------|---------------------| + * | 1 | 1 | Link descriptor | Descriptor address | + * |------|------|-----------------|---------------------| + */ +/*! @brief The bit shift for ADDRESS filed in ADMA1's descriptor */ +#define SDHC_ADMA1_DESCRIPTOR_ADDRESS_SHIFT (12U) +/*! @brief The bit mask for ADDRESS field in ADMA1's descriptor */ +#define SDHC_ADMA1_DESCRIPTOR_ADDRESS_MASK (0xFFFFFU) +/*! @brief The bit shift for LENGTH filed in ADMA1's descriptor */ +#define SDHC_ADMA1_DESCRIPTOR_LENGTH_SHIFT (12U) +/*! @brief The mask for LENGTH field in ADMA1's descriptor */ +#define SDHC_ADMA1_DESCRIPTOR_LENGTH_MASK (0xFFFFU) +/*! @brief The maximum value of LENGTH filed in ADMA1's descriptor */ +#define SDHC_ADMA1_DESCRIPTOR_MAX_LENGTH_PER_ENTRY (SDHC_ADMA1_DESCRIPTOR_LENGTH_MASK + 1U) + +/*! @brief The mask for the control/status field in ADMA1 descriptor */ +enum _sdhc_adma1_descriptor_flag +{ + kSDHC_Adma1DescriptorValidFlag = (1U << 0U), /*!< Valid flag */ + kSDHC_Adma1DescriptorEndFlag = (1U << 1U), /*!< End flag */ + kSDHC_Adma1DescriptorInterrupFlag = (1U << 2U), /*!< Interrupt flag */ + kSDHC_Adma1DescriptorActivity1Flag = (1U << 4U), /*!< Activity 1 flag */ + kSDHC_Adma1DescriptorActivity2Flag = (1U << 5U), /*!< Activity 2 flag */ + kSDHC_Adma1DescriptorTypeNop = (kSDHC_Adma1DescriptorValidFlag), /*!< No operation */ + kSDHC_Adma1DescriptorTypeTransfer = + (kSDHC_Adma1DescriptorActivity2Flag | kSDHC_Adma1DescriptorValidFlag), /*!< Transfer data */ + kSDHC_Adma1DescriptorTypeLink = (kSDHC_Adma1DescriptorActivity1Flag | kSDHC_Adma1DescriptorActivity2Flag | + kSDHC_Adma1DescriptorValidFlag), /*!< Link descriptor */ + kSDHC_Adma1DescriptorTypeSetLength = + (kSDHC_Adma1DescriptorActivity1Flag | kSDHC_Adma1DescriptorValidFlag), /*!< Set data length */ +}; + +/* ADMA2 descriptor table + * |----------------|---------------|-------------|--------------------------| + * | Address field | Length | Reserved | Attribute | + * |----------------|---------------|-------------|--------------------------| + * |63 32|31 16|15 06|05 |04 |03|02 |01 |00 | + * |----------------|---------------|-------------|----|----|--|---|---|-----| + * | 32-bit address | 16-bit length | 0000000000 |Act2|Act1| 0|Int|End|Valid| + * |----------------|---------------|-------------|----|----|--|---|---|-----| + * + * + * | Act2 | Act1 | Comment | Operation | + * |------|------|-----------------|-------------------------------------------------------------------| + * | 0 | 0 | No op | Don't care | + * |------|------|-----------------|-------------------------------------------------------------------| + * | 0 | 1 | Reserved | Read this line and go to next one | + * |------|------|-----------------|-------------------------------------------------------------------| + * | 1 | 0 | Transfer data | Transfer data with address and length set in this descriptor line | + * |------|------|-----------------|-------------------------------------------------------------------| + * | 1 | 1 | Link descriptor | Link to another descriptor | + * |------|------|-----------------|-------------------------------------------------------------------| + */ +/*! @brief The bit shift for LENGTH field in ADMA2's descriptor */ +#define SDHC_ADMA2_DESCRIPTOR_LENGTH_SHIFT (16U) +/*! @brief The bit mask for LENGTH field in ADMA2's descriptor */ +#define SDHC_ADMA2_DESCRIPTOR_LENGTH_MASK (0xFFFFU) +/*! @brief The maximum value of LENGTH field in ADMA2's descriptor */ +#define SDHC_ADMA2_DESCRIPTOR_MAX_LENGTH_PER_ENTRY (SDHC_ADMA2_DESCRIPTOR_LENGTH_MASK) + +/*! @brief ADMA1 descriptor control and status mask */ +enum _sdhc_adma2_descriptor_flag +{ + kSDHC_Adma2DescriptorValidFlag = (1U << 0U), /*!< Valid flag */ + kSDHC_Adma2DescriptorEndFlag = (1U << 1U), /*!< End flag */ + kSDHC_Adma2DescriptorInterruptFlag = (1U << 2U), /*!< Interrupt flag */ + kSDHC_Adma2DescriptorActivity1Flag = (1U << 4U), /*!< Activity 1 mask */ + kSDHC_Adma2DescriptorActivity2Flag = (1U << 5U), /*!< Activity 2 mask */ + + kSDHC_Adma2DescriptorTypeNop = (kSDHC_Adma2DescriptorValidFlag), /*!< No operation */ + kSDHC_Adma2DescriptorTypeReserved = + (kSDHC_Adma2DescriptorActivity1Flag | kSDHC_Adma2DescriptorValidFlag), /*!< Reserved */ + kSDHC_Adma2DescriptorTypeTransfer = + (kSDHC_Adma2DescriptorActivity2Flag | kSDHC_Adma2DescriptorValidFlag), /*!< Transfer type */ + kSDHC_Adma2DescriptorTypeLink = (kSDHC_Adma2DescriptorActivity1Flag | kSDHC_Adma2DescriptorActivity2Flag | + kSDHC_Adma2DescriptorValidFlag), /*!< Link type */ +}; + +/*! @brief Defines the adma1 descriptor structure. */ +typedef uint32_t sdhc_adma1_descriptor_t; + +/*! @brief Defines the ADMA2 descriptor structure. */ +typedef struct _sdhc_adma2_descriptor +{ + uint32_t attribute; /*!< The control and status field */ + const uint32_t *address; /*!< The address field */ +} sdhc_adma2_descriptor_t; + +/*! + * @brief SDHC capability information. + * + * Defines a structure to save the capability information of SDHC. + */ +typedef struct _sdhc_capability +{ + uint32_t specVersion; /*!< Specification version */ + uint32_t vendorVersion; /*!< Vendor version */ + uint32_t maxBlockLength; /*!< Maximum block length united as byte */ + uint32_t maxBlockCount; /*!< Maximum block count can be set one time */ + uint32_t flags; /*!< Capability flags to indicate the support information(_sdhc_capability_flag) */ +} sdhc_capability_t; + +/*! @brief Card transfer configuration. + * + * Define structure to configure the transfer-related command index/argument/flags and data block + * size/data block numbers. This structure needs to be filled each time a command is sent to the card. + */ +typedef struct _sdhc_transfer_config +{ + size_t dataBlockSize; /*!< Data block size */ + uint32_t dataBlockCount; /*!< Data block count */ + uint32_t commandArgument; /*!< Command argument */ + uint32_t commandIndex; /*!< Command index */ + uint32_t flags; /*!< Transfer flags(_sdhc_transfer_flag) */ +} sdhc_transfer_config_t; + +/*! @brief Data structure to configure the MMC boot feature */ +typedef struct _sdhc_boot_config +{ + uint32_t ackTimeoutCount; /*!< Timeout value for the boot ACK */ + sdhc_boot_mode_t bootMode; /*!< Boot mode selection. */ + uint32_t blockCount; /*!< Stop at block gap value of automatic mode */ + bool enableBootAck; /*!< Enable or disable boot ACK */ + bool enableBoot; /*!< Enable or disable fast boot */ + bool enableAutoStopAtBlockGap; /*!< Enable or disable auto stop at block gap function in boot period */ +} sdhc_boot_config_t; + +/*! @brief Data structure to initialize the SDHC */ +typedef struct _sdhc_config +{ + bool cardDetectDat3; /*!< Enable DAT3 as card detection pin */ + sdhc_endian_mode_t endianMode; /*!< Endian mode */ + sdhc_dma_mode_t dmaMode; /*!< DMA mode */ + uint32_t readWatermarkLevel; /*!< Watermark level for DMA read operation */ + uint32_t writeWatermarkLevel; /*!< Watermark level for DMA write operation */ +} sdhc_config_t; + +/*! + * @brief Card data descriptor + * + * Defines a structure to contain data-related attribute. 'enableIgnoreError' is used for the case that upper card driver + * want to ignore the error event to read/write all the data not to stop read/write immediately when error event + * happen for example bus testing procedure for MMC card. + */ +typedef struct _sdhc_data +{ + bool enableAutoCommand12; /*!< Enable auto CMD12 */ + bool enableIgnoreError; /*!< Enable to ignore error event to read/write all the data */ + size_t blockSize; /*!< Block size */ + uint32_t blockCount; /*!< Block count */ + uint32_t *rxData; /*!< Buffer to save data read */ + const uint32_t *txData; /*!< Data buffer to write */ +} sdhc_data_t; + +/*! + * @brief Card command descriptor + * + * Define card command-related attribute. + */ +typedef struct _sdhc_command +{ + uint32_t index; /*!< Command index */ + uint32_t argument; /*!< Command argument */ + sdhc_command_type_t type; /*!< Command type */ + sdhc_response_type_t responseType; /*!< Command response type */ + uint32_t response[4U]; /*!< Response for this command */ +} sdhc_command_t; + +/*! @brief Transfer state */ +typedef struct _sdhc_transfer +{ + sdhc_data_t *data; /*!< Data to transfer */ + sdhc_command_t *command; /*!< Command to send */ +} sdhc_transfer_t; + +/*! @brief SDHC handle typedef */ +typedef struct _sdhc_handle sdhc_handle_t; + +/*! @brief SDHC callback functions. */ +typedef struct _sdhc_transfer_callback +{ + void (*CardInserted)(void); /*!< Card inserted occurs when DAT3/CD pin is for card detect */ + void (*CardRemoved)(void); /*!< Card removed occurs */ + void (*SdioInterrupt)(void); /*!< SDIO card interrupt occurs */ + void (*SdioBlockGap)(void); /*!< SDIO card stopped at block gap occurs */ + void (*TransferComplete)(SDHC_Type *base, + sdhc_handle_t *handle, + status_t status, + void *userData); /*!< Transfer complete callback */ +} sdhc_transfer_callback_t; + +/*! + * @brief SDHC handle + * + * Defines the structure to save the SDHC state information and callback function. The detail interrupt status when + * send command or transfer data can be obtained from interruptFlags field by using mask defined in sdhc_interrupt_flag_t; + * + * @note All the fields except interruptFlags and transferredWords must be allocated by the user. + */ +struct _sdhc_handle +{ + /* Transfer parameter */ + sdhc_data_t *volatile data; /*!< Data to transfer */ + sdhc_command_t *volatile command; /*!< Command to send */ + + /* Transfer status */ + volatile uint32_t interruptFlags; /*!< Interrupt flags of last transaction */ + volatile uint32_t transferredWords; /*!< Words transferred by DATAPORT way */ + + /* Callback functions */ + sdhc_transfer_callback_t callback; /*!< Callback function */ + void *userData; /*!< Parameter for transfer complete callback */ +}; + +/*! @brief SDHC transfer function. */ +typedef status_t (*sdhc_transfer_function_t)(SDHC_Type *base, sdhc_transfer_t *content); + +/*! @brief SDHC host descriptor */ +typedef struct _sdhc_host +{ + SDHC_Type *base; /*!< SDHC peripheral base address */ + uint32_t sourceClock_Hz; /*!< SDHC source clock frequency united in Hz */ + sdhc_config_t config; /*!< SDHC configuration */ + sdhc_capability_t capability; /*!< SDHC capability information */ + sdhc_transfer_function_t transfer; /*!< SDHC transfer function */ +} sdhc_host_t; + +/************************************************************************************************* + * API + ************************************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name Initialization and deinitialization + * @{ + */ + +/*! + * @brief SDHC module initialization function. + * + * Configures the SDHC according to the user configuration. + * + * Example: + @code + sdhc_config_t config; + config.enableDat3AsCDPin = false; + config.endianMode = kSDHC_EndianModeLittle; + config.dmaMode = kSDHC_DmaModeAdma2; + config.readWatermarkLevel = 512U; + config.writeWatermarkLevel = 512U; + SDHC_Init(SDHC, &config); + @endcode + * + * @param base SDHC peripheral base address. + * @param config SDHC configuration information. + * @retval kStatus_Success Operate successfully. + */ +void SDHC_Init(SDHC_Type *base, const sdhc_config_t *config); + +/*! + * @brief Deinitializes the SDHC. + * + * @param base SDHC peripheral base address. + */ +void SDHC_Deinit(SDHC_Type *base); + +/*! + * @brief Resets the SDHC. + * + * @param base SDHC peripheral base address. + * @param mask The reset type mask(_sdhc_reset). + * @param timeout Timeout for reset. + * @retval true Reset successfully. + * @retval false Reset failed. + */ +bool SDHC_Reset(SDHC_Type *base, uint32_t mask, uint32_t timeout); + +/* @} */ + +/*! + * @name DMA Control + * @{ + */ + +/*! + * @brief Sets the ADMA descriptor table configuration. + * + * @param base SDHC peripheral base address. + * @param dmaMode DMA mode. + * @param table ADMA table address. + * @param tableWords ADMA table buffer length united as Words. + * @param data Data buffer address. + * @param dataBytes Data length united as bytes. + * @retval kStatus_OutOfRange ADMA descriptor table length isn't enough to describe data. + * @retval kStatus_Success Operate successfully. + */ +status_t SDHC_SetAdmaTableConfig(SDHC_Type *base, + sdhc_dma_mode_t dmaMode, + uint32_t *table, + uint32_t tableWords, + const uint32_t *data, + uint32_t dataBytes); + +/* @} */ + +/*! + * @name Interrupts + * @{ + */ + +/*! + * @brief Enables the interrupt status. + * + * @param base SDHC peripheral base address. + * @param mask Interrupt status flags mask(_sdhc_interrupt_status_flag). + */ +static inline void SDHC_EnableInterruptStatus(SDHC_Type *base, uint32_t mask) +{ + base->IRQSTATEN |= mask; +} + +/*! + * @brief Disables the interrupt status. + * + * @param base SDHC peripheral base address. + * @param mask The interrupt status flags mask(_sdhc_interrupt_status_flag). + */ +static inline void SDHC_DisableInterruptStatus(SDHC_Type *base, uint32_t mask) +{ + base->IRQSTATEN &= ~mask; +} + +/*! + * @brief Enables interrupts signal corresponding to the interrupt status flag. + * + * @param base SDHC peripheral base address. + * @param mask The interrupt status flags mask(_sdhc_interrupt_status_flag). + */ +static inline void SDHC_EnableInterruptSignal(SDHC_Type *base, uint32_t mask) +{ + base->IRQSIGEN |= mask; +} + +/*! + * @brief Disables interrupts signal corresponding to the interrupt status flag. + * + * @param base SDHC peripheral base address. + * @param mask The interrupt status flags mask(_sdhc_interrupt_status_flag). + */ +static inline void SDHC_DisableInterruptSignal(SDHC_Type *base, uint32_t mask) +{ + base->IRQSIGEN &= ~mask; +} + +/* @} */ + +/*! + * @name Status + * @{ + */ + +/*! + * @brief Gets the current interrupt status. + * + * @param base SDHC peripheral base address. + * @return Current interrupt status flags mask(_sdhc_interrupt_status_flag). + */ +static inline uint32_t SDHC_GetInterruptStatusFlags(SDHC_Type *base) +{ + return base->IRQSTAT; +} + +/*! + * @brief Clears a specified interrupt status. + * + * @param base SDHC peripheral base address. + * @param mask The interrupt status flags mask(_sdhc_interrupt_status_flag). + */ +static inline void SDHC_ClearInterruptStatusFlags(SDHC_Type *base, uint32_t mask) +{ + base->IRQSTAT = mask; +} + +/*! + * @brief Gets the status of auto command 12 error. + * + * @param base SDHC peripheral base address. + * @return Auto command 12 error status flags mask(_sdhc_auto_command12_error_status_flag). + */ +static inline uint32_t SDHC_GetAutoCommand12ErrorStatusFlags(SDHC_Type *base) +{ + return base->AC12ERR; +} + +/*! + * @brief Gets the status of the ADMA error. + * + * @param base SDHC peripheral base address. + * @return ADMA error status flags mask(_sdhc_adma_error_status_flag). + */ +static inline uint32_t SDHC_GetAdmaErrorStatusFlags(SDHC_Type *base) +{ + return base->ADMAES; +} + +/*! + * @brief Gets a present status. + * + * This function gets the present SDHC's status except for interrupt status and error status. + * + * @param base SDHC peripheral base address. + * @return Present SDHC's status flags mask(_sdhc_present_status_flag). + */ +static inline uint32_t SDHC_GetPresentStatusFlags(SDHC_Type *base) +{ + return base->PRSSTAT; +} + +/* @} */ + +/*! + * @name Bus Operations + * @{ + */ + +/*! + * @brief Gets the capability information + * + * @param base SDHC peripheral base address. + * @param capability Structure to save capability information. + */ +void SDHC_GetCapability(SDHC_Type *base, sdhc_capability_t *capability); + +/*! + * @brief Enables or disables the SD bus clock. + * + * @param base SDHC peripheral base address. + * @param enable True to enable, false to disable. + */ +static inline void SDHC_EnableSdClock(SDHC_Type *base, bool enable) +{ + if (enable) + { + base->SYSCTL |= SDHC_SYSCTL_SDCLKEN_MASK; + } + else + { + base->SYSCTL &= ~SDHC_SYSCTL_SDCLKEN_MASK; + } +} + +/*! + * @brief Sets the SD bus clock frequency. + * + * @param base SDHC peripheral base address. + * @param srcClock_Hz SDHC source clock frequency united in Hz. + * @param busClock_Hz SD bus clock frequency united in Hz. + * + * @return The nearest frequency of busClock_Hz configured to SD bus. + */ +uint32_t SDHC_SetSdClock(SDHC_Type *base, uint32_t srcClock_Hz, uint32_t busClock_Hz); + +/*! + * @brief Sends 80 clocks to the card to set it to be active state. + * + * This function must be called after each time the card is inserted to make card can receive command correctly. + * + * @param base SDHC peripheral base address. + * @param timeout Timeout to initialize card. + * @retval true Set card active successfully. + * @retval false Set card active failed. + */ +bool SDHC_SetCardActive(SDHC_Type *base, uint32_t timeout); + +/*! + * @brief Sets the data transfer width. + * + * @param base SDHC peripheral base address. + * @param width Data transfer width. + */ +static inline void SDHC_SetDataBusWidth(SDHC_Type *base, sdhc_data_bus_width_t width) +{ + base->PROCTL = ((base->PROCTL & ~SDHC_PROCTL_DTW_MASK) | SDHC_PROCTL_DTW(width)); +} + +/*! + * @brief Sets the card transfer-related configuration. + * + * This function fills card transfer-related command argument/transfer flag/data size. Command and data are sent by + * SDHC after calling this function. + * + * Example: + @code + sdhc_transfer_config_t transferConfig; + transferConfig.dataBlockSize = 512U; + transferConfig.dataBlockCount = 2U; + transferConfig.commandArgument = 0x01AAU; + transferConfig.commandIndex = 8U; + transferConfig.flags |= (kSDHC_EnableDmaFlag | kSDHC_EnableAutoCommand12Flag | kSDHC_MultipleBlockFlag); + SDHC_SetTransferConfig(SDHC, &transferConfig); + @endcode + * + * @param base SDHC peripheral base address. + * @param config Command configuration structure. + */ +void SDHC_SetTransferConfig(SDHC_Type *base, const sdhc_transfer_config_t *config); + +/*! + * @brief Gets the command response. + * + * @param base SDHC peripheral base address. + * @param index The index of response register, range from 0 to 3. + * @return Response register transfer. + */ +static inline uint32_t SDHC_GetCommandResponse(SDHC_Type *base, uint32_t index) +{ + assert(index < 4U); + + return base->CMDRSP[index]; +} + +/*! + * @brief Fills the the data port. + * + * This function is mainly used to implement the data transfer by Data Port instead of DMA. + * + * @param base SDHC peripheral base address. + * @param data The data about to be sent. + */ +static inline void SDHC_WriteData(SDHC_Type *base, uint32_t data) +{ + base->DATPORT = data; +} + +/*! + * @brief Retrieves the data from the data port. + * + * This function is mainly used to implement the data transfer by Data Port instead of DMA. + * + * @param base SDHC peripheral base address. + * @return The data has been read. + */ +static inline uint32_t SDHC_ReadData(SDHC_Type *base) +{ + return base->DATPORT; +} + +/*! + * @brief Enables or disables a wakeup event in low-power mode. + * + * @param base SDHC peripheral base address. + * @param mask Wakeup events mask(_sdhc_wakeup_event). + * @param enable True to enable, false to disable. + */ +static inline void SDHC_EnableWakeupEvent(SDHC_Type *base, uint32_t mask, bool enable) +{ + if (enable) + { + base->PROCTL |= mask; + } + else + { + base->PROCTL &= ~mask; + } +} + +/*! + * @brief Enables or disables the card detection level for test. + * + * @param base SDHC peripheral base address. + * @param enable True to enable, false to disable. + */ +static inline void SDHC_EnableCardDetectTest(SDHC_Type *base, bool enable) +{ + if (enable) + { + base->PROCTL |= SDHC_PROCTL_CDSS_MASK; + } + else + { + base->PROCTL &= ~SDHC_PROCTL_CDSS_MASK; + } +} + +/*! + * @brief Sets the card detection test level. + * + * This function set the card detection test level to indicate whether the card is inserted into SDHC when DAT[3]/ + * CD pin is selected as card detection pin. This function can also assert the pin logic when DAT[3]/CD pin is select + * as the card detection pin. + * + * @param base SDHC peripheral base address. + * @param high True to set the card detect level to high. + */ +static inline void SDHC_SetCardDetectTestLevel(SDHC_Type *base, bool high) +{ + if (high) + { + base->PROCTL |= SDHC_PROCTL_CDTL_MASK; + } + else + { + base->PROCTL &= ~SDHC_PROCTL_CDTL_MASK; + } +} + +/*! + * @brief Enables or disables the SDIO card control. + * + * @param base SDHC peripheral base address. + * @param mask SDIO card control flags mask(_sdhc_sdio_control_flag). + * @param enable True to enable, false to disable. + */ +void SDHC_EnableSdioControl(SDHC_Type *base, uint32_t mask, bool enable); + +/*! + * @brief Restarts a transaction which has stopped at the block gap for SDIO card. + * + * @param base SDHC peripheral base address. + */ +static inline void SDHC_SetContinueRequest(SDHC_Type *base) +{ + base->PROCTL |= SDHC_PROCTL_CREQ_MASK; +} + +/*! + * @brief Configures the MMC boot feature. + * + * Example: + @code + sdhc_boot_config_t bootConfig; + bootConfig.ackTimeoutCount = 4; + bootConfig.bootMode = kSDHC_BootModeNormal; + bootConfig.blockCount = 5; + bootConfig.enableBootAck = true; + bootConfig.enableBoot = true; + enableBoot.enableAutoStopAtBlockGap = true; + SDHC_SetMmcBootConfig(SDHC, &bootConfig); + @endcode + * + * @param base SDHC peripheral base address. + * @param config The MMC boot configuration information. + */ +void SDHC_SetMmcBootConfig(SDHC_Type *base, const sdhc_boot_config_t *config); + +/*! + * @brief Forces to generate events according to the given mask. + * + * @param base SDHC peripheral base address. + * @param mask The force events mask(_sdhc_force_event). + */ +static inline void SDHC_SetForceEvent(SDHC_Type *base, uint32_t mask) +{ + base->FEVT = mask; +} + +/* @} */ + +/*! + * @name Transactional + * @{ + */ + +/*! + * @brief Transfers the command/data using blocking way. + * + * This function waits until the command response/data is got or SDHC encounters error by polling the status flag. + * Application must not call this API in multiple threads at the same time because of that this API doesn't support + * re-entry mechanism. + * + * @note There is no need to call the API 'SDHC_TransferCreateHandle' when calling this API. + * + * @param base SDHC peripheral base address. + * @param admaTable ADMA table address, can't be null if transfer way is ADMA1/ADMA2. + * @param admaTableWords ADMA table length united as words, can't be 0 if transfer way is ADMA1/ADMA2. + * @param transfer Transfer content. + * @retval kStatus_InvalidArgument Argument is invalid. + * @retval kStatus_SDHC_PrepareAdmaDescriptorFailed Prepare ADMA descriptor failed. + * @retval kStatus_SDHC_SendCommandFailed Send command failed. + * @retval kStatus_SDHC_TransferDataFailed Transfer data failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SDHC_TransferBlocking(SDHC_Type *base, + uint32_t *admaTable, + uint32_t admaTableWords, + sdhc_transfer_t *transfer); + +/*! + * @brief Creates the SDHC handle. + * + * @param base SDHC peripheral base address. + * @param handle SDHC handle pointer. + * @param callback Structure pointer to contain all callback functions. + * @param userData Callback function parameter. + */ +void SDHC_TransferCreateHandle(SDHC_Type *base, + sdhc_handle_t *handle, + const sdhc_transfer_callback_t *callback, + void *userData); + +/*! + * @brief Transfers the command/data using interrupt and asynchronous way. + * + * This function send command and data and return immediately. It doesn't wait the transfer complete or encounter error. + * Application must not call this API in multiple threads at the same time because of that this API doesn't support + * re-entry mechanism. + * + * @note Must call the API 'SDHC_TransferCreateHandle' when calling this API. + * + * @param base SDHC peripheral base address. + * @param handle SDHC handle. + * @param admaTable ADMA table address, can't be null if transfer way is ADMA1/ADMA2. + * @param admaTableWords ADMA table length united as words, can't be 0 if transfer way is ADMA1/ADMA2. + * @param transfer Transfer content. + * @retval kStatus_InvalidArgument Argument is invalid. + * @retval kStatus_SDHC_BusyTransferring Busy transferring. + * @retval kStatus_SDHC_PrepareAdmaDescriptorFailed Prepare ADMA descriptor failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SDHC_TransferNonBlocking( + SDHC_Type *base, sdhc_handle_t *handle, uint32_t *admaTable, uint32_t admaTableWords, sdhc_transfer_t *transfer); + +/*! + * @brief IRQ handler for SDHC + * + * This function deals with IRQs on the given host controller. + * + * @param base SDHC peripheral base address. + * @param handle SDHC handle. + */ +void SDHC_TransferHandleIRQ(SDHC_Type *base, sdhc_handle_t *handle); + +/* @} */ + +#if defined(__cplusplus) +} +#endif +/*! @} */ + +#endif /* _FSL_SDHC_H_*/ diff --git a/drivers/fsl_sim.c b/drivers/fsl_sim.c new file mode 100644 index 0000000..3a4b801 --- /dev/null +++ b/drivers/fsl_sim.c @@ -0,0 +1,53 @@ +/* +* Copyright (c) 2015, Freescale Semiconductor, Inc. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without modification, +* are permitted provided that the following conditions are met: +* +* o Redistributions of source code must retain the above copyright notice, this list +* of conditions and the following disclaimer. +* +* o Redistributions in binary form must reproduce the above copyright notice, this +* list of conditions and the following disclaimer in the documentation and/or +* other materials provided with the distribution. +* +* o Neither the name of Freescale Semiconductor, Inc. nor the names of its +* contributors may be used to endorse or promote products derived from this +* software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR +* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "fsl_sim.h" + +/******************************************************************************* + * Codes + ******************************************************************************/ +#if (defined(FSL_FEATURE_SIM_OPT_HAS_USB_VOLTAGE_REGULATOR) && FSL_FEATURE_SIM_OPT_HAS_USB_VOLTAGE_REGULATOR) +void SIM_SetUsbVoltRegulatorEnableMode(uint32_t mask) +{ + SIM->SOPT1CFG |= (SIM_SOPT1CFG_URWE_MASK | SIM_SOPT1CFG_UVSWE_MASK | SIM_SOPT1CFG_USSWE_MASK); + + SIM->SOPT1 = (SIM->SOPT1 & ~kSIM_UsbVoltRegEnableInAllModes) | mask; +} +#endif /* FSL_FEATURE_SIM_OPT_HAS_USB_VOLTAGE_REGULATOR */ + +void SIM_GetUniqueId(sim_uid_t *uid) +{ +#if defined(SIM_UIDH) + uid->H = SIM->UIDH; +#endif + uid->MH = SIM->UIDMH; + uid->ML = SIM->UIDML; + uid->L = SIM->UIDL; +} diff --git a/drivers/fsl_sim.h b/drivers/fsl_sim.h new file mode 100644 index 0000000..77958f8 --- /dev/null +++ b/drivers/fsl_sim.h @@ -0,0 +1,127 @@ +/* +* Copyright (c) 2015, Freescale Semiconductor, Inc. +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without modification, +* are permitted provided that the following conditions are met: +* +* o Redistributions of source code must retain the above copyright notice, this list +* of conditions and the following disclaimer. +* +* o Redistributions in binary form must reproduce the above copyright notice, this +* list of conditions and the following disclaimer in the documentation and/or +* other materials provided with the distribution. +* +* o Neither the name of Freescale Semiconductor, Inc. nor the names of its +* contributors may be used to endorse or promote products derived from this +* software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR +* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef _FSL_SIM_H_ +#define _FSL_SIM_H_ + +#include "fsl_common.h" + +/*! @addtogroup sim */ +/*! @{*/ + + +/******************************************************************************* + * Definitions + *******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +#define FSL_SIM_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) /*!< Driver version 2.0.0 */ +/*@}*/ + +#if (defined(FSL_FEATURE_SIM_OPT_HAS_USB_VOLTAGE_REGULATOR) && FSL_FEATURE_SIM_OPT_HAS_USB_VOLTAGE_REGULATOR) +/*!@brief USB voltage regulator enable setting. */ +enum _sim_usb_volt_reg_enable_mode +{ + kSIM_UsbVoltRegEnable = SIM_SOPT1_USBREGEN_MASK, /*!< Enable voltage regulator. */ + kSIM_UsbVoltRegEnableInLowPower = SIM_SOPT1_USBVSTBY_MASK, /*!< Enable voltage regulator in VLPR/VLPW modes. */ + kSIM_UsbVoltRegEnableInStop = SIM_SOPT1_USBSSTBY_MASK, /*!< Enable voltage regulator in STOP/VLPS/LLS/VLLS modes. */ + kSIM_UsbVoltRegEnableInAllModes = SIM_SOPT1_USBREGEN_MASK | SIM_SOPT1_USBSSTBY_MASK | + SIM_SOPT1_USBVSTBY_MASK /*!< Enable voltage regulator in all power modes. */ +}; +#endif /* (defined(FSL_FEATURE_SIM_OPT_HAS_USB_VOLTAGE_REGULATOR) && FSL_FEATURE_SIM_OPT_HAS_USB_VOLTAGE_REGULATOR) */ + +/*!@brief Unique ID. */ +typedef struct _sim_uid +{ +#if defined(SIM_UIDH) + uint32_t H; /*!< UIDH. */ +#endif + uint32_t MH; /*!< UIDMH. */ + uint32_t ML; /*!< UIDML. */ + uint32_t L; /*!< UIDL. */ +} sim_uid_t; + +/*!@brief Flash enable mode. */ +enum _sim_flash_mode +{ + kSIM_FlashDisableInWait = SIM_FCFG1_FLASHDOZE_MASK, /*!< Disable flash in wait mode. */ + kSIM_FlashDisable = SIM_FCFG1_FLASHDIS_MASK /*!< Disable flash in normal mode. */ +}; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /* __cplusplus*/ + +#if (defined(FSL_FEATURE_SIM_OPT_HAS_USB_VOLTAGE_REGULATOR) && FSL_FEATURE_SIM_OPT_HAS_USB_VOLTAGE_REGULATOR) +/*! + * @brief Sets the USB voltage regulator setting. + * + * This function configures whether the USB voltage regulator is enabled in + * normal RUN mode, STOP/VLPS/LLS/VLLS modes and VLPR/VLPW modes. The configurations + * are passed in as mask value of \ref _sim_usb_volt_reg_enable_mode. For example, enable + * USB voltage regulator in RUN/VLPR/VLPW modes and disable in STOP/VLPS/LLS/VLLS mode, + * please use: + * + * SIM_SetUsbVoltRegulatorEnableMode(kSIM_UsbVoltRegEnable | kSIM_UsbVoltRegEnableInLowPower); + * + * @param mask USB voltage regulator enable setting. + */ +void SIM_SetUsbVoltRegulatorEnableMode(uint32_t mask); +#endif /* FSL_FEATURE_SIM_OPT_HAS_USB_VOLTAGE_REGULATOR */ + +/*! + * @brief Get the unique identification register value. + * + * @param uid Pointer to the structure to save the UID value. + */ +void SIM_GetUniqueId(sim_uid_t *uid); + +/*! + * @brief Set the flash enable mode. + * + * @param mode The mode to set, see \ref _sim_flash_mode for mode details. + */ +static inline void SIM_SetFlashMode(uint8_t mode) +{ + SIM->FCFG1 = mode; +} + +#if defined(__cplusplus) +} +#endif /* __cplusplus*/ + +/*! @}*/ + +#endif /* _FSL_SIM_H_ */ diff --git a/drivers/fsl_smc.c b/drivers/fsl_smc.c new file mode 100644 index 0000000..45382fd --- /dev/null +++ b/drivers/fsl_smc.c @@ -0,0 +1,366 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_smc.h" + +#if (defined(FSL_FEATURE_SMC_HAS_PARAM) && FSL_FEATURE_SMC_HAS_PARAM) +void SMC_GetParam(SMC_Type *base, smc_param_t *param) +{ + uint32_t reg = base->PARAM; + param->hsrunEnable = (bool)(reg & SMC_PARAM_EHSRUN_MASK); + param->llsEnable = (bool)(reg & SMC_PARAM_ELLS_MASK); + param->lls2Enable = (bool)(reg & SMC_PARAM_ELLS2_MASK); + param->vlls0Enable = (bool)(reg & SMC_PARAM_EVLLS0_MASK); +} +#endif /* FSL_FEATURE_SMC_HAS_PARAM */ + +status_t SMC_SetPowerModeRun(SMC_Type *base) +{ + uint8_t reg; + + reg = base->PMCTRL; + /* configure Normal RUN mode */ + reg &= ~SMC_PMCTRL_RUNM_MASK; + reg |= (kSMC_RunNormal << SMC_PMCTRL_RUNM_SHIFT); + base->PMCTRL = reg; + + return kStatus_Success; +} + +#if (defined(FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE) && FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE) +status_t SMC_SetPowerModeHsrun(SMC_Type *base) +{ + uint8_t reg; + + reg = base->PMCTRL; + /* configure High Speed RUN mode */ + reg &= ~SMC_PMCTRL_RUNM_MASK; + reg |= (kSMC_Hsrun << SMC_PMCTRL_RUNM_SHIFT); + base->PMCTRL = reg; + + return kStatus_Success; +} +#endif /* FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE */ + +status_t SMC_SetPowerModeWait(SMC_Type *base) +{ + /* configure Normal Wait mode */ + SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk; + __DSB(); + __WFI(); + __ISB(); + + return kStatus_Success; +} + +status_t SMC_SetPowerModeStop(SMC_Type *base, smc_partial_stop_option_t option) +{ + uint8_t reg; + +#if (defined(FSL_FEATURE_SMC_HAS_PSTOPO) && FSL_FEATURE_SMC_HAS_PSTOPO) + /* configure the Partial Stop mode in Noraml Stop mode */ + reg = base->STOPCTRL; + reg &= ~SMC_STOPCTRL_PSTOPO_MASK; + reg |= ((uint32_t)option << SMC_STOPCTRL_PSTOPO_SHIFT); + base->STOPCTRL = reg; +#endif + + /* configure Normal Stop mode */ + reg = base->PMCTRL; + reg &= ~SMC_PMCTRL_STOPM_MASK; + reg |= (kSMC_StopNormal << SMC_PMCTRL_STOPM_SHIFT); + base->PMCTRL = reg; + + /* Set the SLEEPDEEP bit to enable deep sleep mode (stop mode) */ + SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk; + + /* read back to make sure the configuration valid before enter stop mode */ + (void)base->PMCTRL; + __DSB(); + __WFI(); + __ISB(); + + /* check whether the power mode enter Stop mode succeed */ + if (base->PMCTRL & SMC_PMCTRL_STOPA_MASK) + { + return kStatus_SMC_StopAbort; + } + else + { + return kStatus_Success; + } +} + +status_t SMC_SetPowerModeVlpr(SMC_Type *base +#if (defined(FSL_FEATURE_SMC_HAS_LPWUI) && FSL_FEATURE_SMC_HAS_LPWUI) + , + bool wakeupMode +#endif + ) +{ + uint8_t reg; + + reg = base->PMCTRL; +#if (defined(FSL_FEATURE_SMC_HAS_LPWUI) && FSL_FEATURE_SMC_HAS_LPWUI) + /* configure whether the system remains in VLP mode on an interrupt */ + if (wakeupMode) + { + /* exits to RUN mode on an interrupt */ + reg |= SMC_PMCTRL_LPWUI_MASK; + } + else + { + /* remains in VLP mode on an interrupt */ + reg &= ~SMC_PMCTRL_LPWUI_MASK; + } +#endif /* FSL_FEATURE_SMC_HAS_LPWUI */ + + /* configure VLPR mode */ + reg &= ~SMC_PMCTRL_RUNM_MASK; + reg |= (kSMC_RunVlpr << SMC_PMCTRL_RUNM_SHIFT); + base->PMCTRL = reg; + + return kStatus_Success; +} + +status_t SMC_SetPowerModeVlpw(SMC_Type *base) +{ + /* configure VLPW mode */ + /* Set the SLEEPDEEP bit to enable deep sleep mode */ + SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk; + __DSB(); + __WFI(); + __ISB(); + + return kStatus_Success; +} + +status_t SMC_SetPowerModeVlps(SMC_Type *base) +{ + uint8_t reg; + + /* configure VLPS mode */ + reg = base->PMCTRL; + reg &= ~SMC_PMCTRL_STOPM_MASK; + reg |= (kSMC_StopVlps << SMC_PMCTRL_STOPM_SHIFT); + base->PMCTRL = reg; + + /* Set the SLEEPDEEP bit to enable deep sleep mode */ + SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk; + + /* read back to make sure the configuration valid before enter stop mode */ + (void)base->PMCTRL; + __DSB(); + __WFI(); + __ISB(); + + /* check whether the power mode enter VLPS mode succeed */ + if (base->PMCTRL & SMC_PMCTRL_STOPA_MASK) + { + return kStatus_SMC_StopAbort; + } + else + { + return kStatus_Success; + } +} + +#if (defined(FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE) && FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE) +status_t SMC_SetPowerModeLls(SMC_Type *base +#if ((defined(FSL_FEATURE_SMC_HAS_LLS_SUBMODE) && FSL_FEATURE_SMC_HAS_LLS_SUBMODE) || \ + (defined(FSL_FEATURE_SMC_HAS_LPOPO) && FSL_FEATURE_SMC_HAS_LPOPO)) + , + const smc_power_mode_lls_config_t *config +#endif + ) +{ + uint8_t reg; + + /* configure to LLS mode */ + reg = base->PMCTRL; + reg &= ~SMC_PMCTRL_STOPM_MASK; + reg |= (kSMC_StopLls << SMC_PMCTRL_STOPM_SHIFT); + base->PMCTRL = reg; + +/* configure LLS sub-mode*/ +#if (defined(FSL_FEATURE_SMC_HAS_LLS_SUBMODE) && FSL_FEATURE_SMC_HAS_LLS_SUBMODE) + reg = base->STOPCTRL; + reg &= ~SMC_STOPCTRL_LLSM_MASK; + reg |= ((uint32_t)config->subMode << SMC_STOPCTRL_LLSM_SHIFT); + base->STOPCTRL = reg; +#endif /* FSL_FEATURE_SMC_HAS_LLS_SUBMODE */ + +#if (defined(FSL_FEATURE_SMC_HAS_LPOPO) && FSL_FEATURE_SMC_HAS_LPOPO) + if (config->enableLpoClock) + { + base->STOPCTRL &= ~SMC_STOPCTRL_LPOPO_MASK; + } + else + { + base->STOPCTRL |= SMC_STOPCTRL_LPOPO_MASK; + } +#endif /* FSL_FEATURE_SMC_HAS_LPOPO */ + + /* Set the SLEEPDEEP bit to enable deep sleep mode */ + SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk; + + /* read back to make sure the configuration valid before enter stop mode */ + (void)base->PMCTRL; + __DSB(); + __WFI(); + __ISB(); + + /* check whether the power mode enter LLS mode succeed */ + if (base->PMCTRL & SMC_PMCTRL_STOPA_MASK) + { + return kStatus_SMC_StopAbort; + } + else + { + return kStatus_Success; + } +} +#endif /* FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE */ + +#if (defined(FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) && FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) +status_t SMC_SetPowerModeVlls(SMC_Type *base, const smc_power_mode_vlls_config_t *config) +{ + uint8_t reg; + +#if (defined(FSL_FEATURE_SMC_HAS_PORPO) && FSL_FEATURE_SMC_HAS_PORPO) +#if (defined(FSL_FEATURE_SMC_USE_VLLSCTRL_REG) && FSL_FEATURE_SMC_USE_VLLSCTRL_REG) || \ + (defined(FSL_FEATURE_SMC_USE_STOPCTRL_VLLSM) && FSL_FEATURE_SMC_USE_STOPCTRL_VLLSM) || \ + (defined(FSL_FEATURE_SMC_HAS_LLS_SUBMODE) && FSL_FEATURE_SMC_HAS_LLS_SUBMODE) + if (config->subMode == kSMC_StopSub0) +#endif + { + /* configure whether the Por Detect work in Vlls0 mode */ + if (config->enablePorDetectInVlls0) + { +#if (defined(FSL_FEATURE_SMC_USE_VLLSCTRL_REG) && FSL_FEATURE_SMC_USE_VLLSCTRL_REG) + base->VLLSCTRL &= ~SMC_VLLSCTRL_PORPO_MASK; +#else + base->STOPCTRL &= ~SMC_STOPCTRL_PORPO_MASK; +#endif + } + else + { +#if (defined(FSL_FEATURE_SMC_USE_VLLSCTRL_REG) && FSL_FEATURE_SMC_USE_VLLSCTRL_REG) + base->VLLSCTRL |= SMC_VLLSCTRL_PORPO_MASK; +#else + base->STOPCTRL |= SMC_STOPCTRL_PORPO_MASK; +#endif + } + } +#endif /* FSL_FEATURE_SMC_HAS_PORPO */ + +#if (defined(FSL_FEATURE_SMC_HAS_RAM2_POWER_OPTION) && FSL_FEATURE_SMC_HAS_RAM2_POWER_OPTION) + else if (config->subMode == kSMC_StopSub2) + { + /* configure whether the Por Detect work in Vlls0 mode */ + if (config->enableRam2InVlls2) + { +#if (defined(FSL_FEATURE_SMC_USE_VLLSCTRL_REG) && FSL_FEATURE_SMC_USE_VLLSCTRL_REG) + base->VLLSCTRL |= SMC_VLLSCTRL_RAM2PO_MASK; +#else + base->STOPCTRL |= SMC_STOPCTRL_RAM2PO_MASK; +#endif + } + else + { +#if (defined(FSL_FEATURE_SMC_USE_VLLSCTRL_REG) && FSL_FEATURE_SMC_USE_VLLSCTRL_REG) + base->VLLSCTRL &= ~SMC_VLLSCTRL_RAM2PO_MASK; +#else + base->STOPCTRL &= ~SMC_STOPCTRL_RAM2PO_MASK; +#endif + } + } + else + { + } +#endif /* FSL_FEATURE_SMC_HAS_RAM2_POWER_OPTION */ + + /* configure to VLLS mode */ + reg = base->PMCTRL; + reg &= ~SMC_PMCTRL_STOPM_MASK; + reg |= (kSMC_StopVlls << SMC_PMCTRL_STOPM_SHIFT); + base->PMCTRL = reg; + +/* configure the VLLS sub-mode */ +#if (defined(FSL_FEATURE_SMC_USE_VLLSCTRL_REG) && FSL_FEATURE_SMC_USE_VLLSCTRL_REG) + reg = base->VLLSCTRL; + reg &= ~SMC_VLLSCTRL_VLLSM_MASK; + reg |= ((uint32_t)config->subMode << SMC_VLLSCTRL_VLLSM_SHIFT); + base->VLLSCTRL = reg; +#else +#if (defined(FSL_FEATURE_SMC_HAS_LLS_SUBMODE) && FSL_FEATURE_SMC_HAS_LLS_SUBMODE) + reg = base->STOPCTRL; + reg &= ~SMC_STOPCTRL_LLSM_MASK; + reg |= ((uint32_t)config->subMode << SMC_STOPCTRL_LLSM_SHIFT); + base->STOPCTRL = reg; +#else + reg = base->STOPCTRL; + reg &= ~SMC_STOPCTRL_VLLSM_MASK; + reg |= ((uint32_t)config->subMode << SMC_STOPCTRL_VLLSM_SHIFT); + base->STOPCTRL = reg; +#endif /* FSL_FEATURE_SMC_HAS_LLS_SUBMODE */ +#endif + +#if (defined(FSL_FEATURE_SMC_HAS_LPOPO) && FSL_FEATURE_SMC_HAS_LPOPO) + if (config->enableLpoClock) + { + base->STOPCTRL &= ~SMC_STOPCTRL_LPOPO_MASK; + } + else + { + base->STOPCTRL |= SMC_STOPCTRL_LPOPO_MASK; + } +#endif /* FSL_FEATURE_SMC_HAS_LPOPO */ + + /* Set the SLEEPDEEP bit to enable deep sleep mode */ + SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk; + + /* read back to make sure the configuration valid before enter stop mode */ + (void)base->PMCTRL; + __DSB(); + __WFI(); + __ISB(); + + /* check whether the power mode enter LLS mode succeed */ + if (base->PMCTRL & SMC_PMCTRL_STOPA_MASK) + { + return kStatus_SMC_StopAbort; + } + else + { + return kStatus_Success; + } +} +#endif /* FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE */ diff --git a/drivers/fsl_smc.h b/drivers/fsl_smc.h new file mode 100644 index 0000000..4148734 --- /dev/null +++ b/drivers/fsl_smc.h @@ -0,0 +1,418 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_SMC_H_ +#define _FSL_SMC_H_ + +#include "fsl_common.h" + +/*! @addtogroup smc */ +/*! @{ */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief SMC driver version 2.0.2. */ +#define FSL_SMC_DRIVER_VERSION (MAKE_VERSION(2, 0, 2)) +/*@}*/ + +/*! + * @brief Power Modes Protection + */ +typedef enum _smc_power_mode_protection +{ +#if (defined(FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) && FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) + kSMC_AllowPowerModeVlls = SMC_PMPROT_AVLLS_MASK, /*!< Allow Very-Low-Leakage Stop Mode. */ +#endif +#if (defined(FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE) && FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE) + kSMC_AllowPowerModeLls = SMC_PMPROT_ALLS_MASK, /*!< Allow Low-Leakage Stop Mode. */ +#endif /* FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE */ + kSMC_AllowPowerModeVlp = SMC_PMPROT_AVLP_MASK, /*!< Allow Very-Low-Power Mode. */ +#if (defined(FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE) && FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE) + kSMC_AllowPowerModeHsrun = SMC_PMPROT_AHSRUN_MASK, /*!< Allow High Speed Run mode. */ +#endif /* FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE */ + kSMC_AllowPowerModeAll = (0U +#if (defined(FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) && FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) + | + SMC_PMPROT_AVLLS_MASK +#endif +#if (defined(FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE) && FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE) + | + SMC_PMPROT_ALLS_MASK +#endif /* FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE */ + | + SMC_PMPROT_AVLP_MASK +#if (defined(FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE) && FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE) + | + kSMC_AllowPowerModeHsrun +#endif /* FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE */ + ) /*!< Allow all power mode. */ +} smc_power_mode_protection_t; + +/*! + * @brief Power Modes in PMSTAT + */ +typedef enum _smc_power_state +{ + kSMC_PowerStateRun = 0x01U << 0U, /*!< 0000_0001 - Current power mode is RUN */ + kSMC_PowerStateStop = 0x01U << 1U, /*!< 0000_0010 - Current power mode is STOP */ + kSMC_PowerStateVlpr = 0x01U << 2U, /*!< 0000_0100 - Current power mode is VLPR */ + kSMC_PowerStateVlpw = 0x01U << 3U, /*!< 0000_1000 - Current power mode is VLPW */ + kSMC_PowerStateVlps = 0x01U << 4U, /*!< 0001_0000 - Current power mode is VLPS */ +#if (defined(FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE) && FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE) + kSMC_PowerStateLls = 0x01U << 5U, /*!< 0010_0000 - Current power mode is LLS */ +#endif /* FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE */ +#if (defined(FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) && FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) + kSMC_PowerStateVlls = 0x01U << 6U, /*!< 0100_0000 - Current power mode is VLLS */ +#endif +#if (defined(FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE) && FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE) + kSMC_PowerStateHsrun = 0x01U << 7U /*!< 1000_0000 - Current power mode is HSRUN */ +#endif /* FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE */ +} smc_power_state_t; + +/*! + * @brief Run mode definition + */ +typedef enum _smc_run_mode +{ + kSMC_RunNormal = 0U, /*!< normal RUN mode. */ + kSMC_RunVlpr = 2U, /*!< Very-Low-Power RUN mode. */ +#if (defined(FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE) && FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE) + kSMC_Hsrun = 3U /*!< High Speed Run mode (HSRUN). */ +#endif /* FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE */ +} smc_run_mode_t; + +/*! + * @brief Stop mode definition + */ +typedef enum _smc_stop_mode +{ + kSMC_StopNormal = 0U, /*!< Normal STOP mode. */ + kSMC_StopVlps = 2U, /*!< Very-Low-Power STOP mode. */ +#if (defined(FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE) && FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE) + kSMC_StopLls = 3U, /*!< Low-Leakage Stop mode. */ +#endif /* FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE */ +#if (defined(FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) && FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) + kSMC_StopVlls = 4U /*!< Very-Low-Leakage Stop mode. */ +#endif +} smc_stop_mode_t; + +#if (defined(FSL_FEATURE_SMC_USE_VLLSCTRL_REG) && FSL_FEATURE_SMC_USE_VLLSCTRL_REG) || \ + (defined(FSL_FEATURE_SMC_USE_STOPCTRL_VLLSM) && FSL_FEATURE_SMC_USE_STOPCTRL_VLLSM) || \ + (defined(FSL_FEATURE_SMC_HAS_LLS_SUBMODE) && FSL_FEATURE_SMC_HAS_LLS_SUBMODE) +/*! + * @brief VLLS/LLS stop sub mode definition + */ +typedef enum _smc_stop_submode +{ + kSMC_StopSub0 = 0U, /*!< Stop submode 0, for VLLS0/LLS0. */ + kSMC_StopSub1 = 1U, /*!< Stop submode 1, for VLLS1/LLS1. */ + kSMC_StopSub2 = 2U, /*!< Stop submode 2, for VLLS2/LLS2. */ + kSMC_StopSub3 = 3U /*!< Stop submode 3, for VLLS3/LLS3. */ +} smc_stop_submode_t; +#endif + +/*! + * @brief Partial STOP option + */ +typedef enum _smc_partial_stop_mode +{ + kSMC_PartialStop = 0U, /*!< STOP - Normal Stop mode*/ + kSMC_PartialStop1 = 1U, /*!< Partial Stop with both system and bus clocks disabled*/ + kSMC_PartialStop2 = 2U, /*!< Partial Stop with system clock disabled and bus clock enabled*/ +} smc_partial_stop_option_t; + +/*! + * @brief SMC configuration status + */ +enum _smc_status +{ + kStatus_SMC_StopAbort = MAKE_STATUS(kStatusGroup_POWER, 0) /*!< Entering Stop mode is abort*/ +}; + +#if (defined(FSL_FEATURE_SMC_HAS_VERID) && FSL_FEATURE_SMC_HAS_VERID) +/*! + * @brief IP version ID definition. + */ +typedef struct _smc_version_id +{ + uint16_t feature; /*!< Feature Specification Number. */ + uint8_t minor; /*!< Minor version number. */ + uint8_t major; /*!< Major version number. */ +} smc_version_id_t; +#endif /* FSL_FEATURE_SMC_HAS_VERID */ + +#if (defined(FSL_FEATURE_SMC_HAS_PARAM) && FSL_FEATURE_SMC_HAS_PARAM) +/*! + * @brief IP parameter definition. + */ +typedef struct _smc_param +{ + bool hsrunEnable; /*!< HSRUN mode enable. */ + bool llsEnable; /*!< LLS mode enable. */ + bool lls2Enable; /*!< LLS2 mode enable. */ + bool vlls0Enable; /*!< VLLS0 mode enable. */ +} smc_param_t; +#endif /* FSL_FEATURE_SMC_HAS_PARAM */ + +#if (defined(FSL_FEATURE_SMC_HAS_LLS_SUBMODE) && FSL_FEATURE_SMC_HAS_LLS_SUBMODE) || \ + (defined(FSL_FEATURE_SMC_HAS_LPOPO) && FSL_FEATURE_SMC_HAS_LPOPO) +/*! + * @brief SMC Low-Leakage Stop power mode config + */ +typedef struct _smc_power_mode_lls_config +{ +#if (defined(FSL_FEATURE_SMC_HAS_LLS_SUBMODE) && FSL_FEATURE_SMC_HAS_LLS_SUBMODE) + smc_stop_submode_t subMode; /*!< Low-leakage Stop sub-mode */ +#endif +#if (defined(FSL_FEATURE_SMC_HAS_LPOPO) && FSL_FEATURE_SMC_HAS_LPOPO) + bool enableLpoClock; /*!< Enable LPO clock in LLS mode */ +#endif +} smc_power_mode_lls_config_t; +#endif /* (FSL_FEATURE_SMC_HAS_LLS_SUBMODE || FSL_FEATURE_SMC_HAS_LPOPO) */ + +#if (defined(FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) && FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) +/*! + * @brief SMC Very Low-Leakage Stop power mode config + */ +typedef struct _smc_power_mode_vlls_config +{ +#if (defined(FSL_FEATURE_SMC_USE_VLLSCTRL_REG) && FSL_FEATURE_SMC_USE_VLLSCTRL_REG) || \ + (defined(FSL_FEATURE_SMC_USE_STOPCTRL_VLLSM) && FSL_FEATURE_SMC_USE_STOPCTRL_VLLSM) || \ + (defined(FSL_FEATURE_SMC_HAS_LLS_SUBMODE) && FSL_FEATURE_SMC_HAS_LLS_SUBMODE) + smc_stop_submode_t subMode; /*!< Very Low-leakage Stop sub-mode */ +#endif +#if (defined(FSL_FEATURE_SMC_HAS_PORPO) && FSL_FEATURE_SMC_HAS_PORPO) + bool enablePorDetectInVlls0; /*!< Enable Power on reset detect in VLLS mode */ +#endif +#if (defined(FSL_FEATURE_SMC_HAS_RAM2_POWER_OPTION) && FSL_FEATURE_SMC_HAS_RAM2_POWER_OPTION) + bool enableRam2InVlls2; /*!< Enable RAM2 power in VLLS2 */ +#endif +#if (defined(FSL_FEATURE_SMC_HAS_LPOPO) && FSL_FEATURE_SMC_HAS_LPOPO) + bool enableLpoClock; /*!< Enable LPO clock in VLLS mode */ +#endif +} smc_power_mode_vlls_config_t; +#endif + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /* __cplusplus */ + +/*! @name System mode controller APIs*/ +/*@{*/ + +#if (defined(FSL_FEATURE_SMC_HAS_VERID) && FSL_FEATURE_SMC_HAS_VERID) +/*! + * @brief Gets the SMC version ID. + * + * This function gets the SMC version ID, including major version number, + * minor version number and feature specification number. + * + * @param base SMC peripheral base address. + * @param versionId Pointer to version ID structure. + */ +static inline void SMC_GetVersionId(SMC_Type *base, smc_version_id_t *versionId) +{ + *((uint32_t *)versionId) = base->VERID; +} +#endif /* FSL_FEATURE_SMC_HAS_VERID */ + +#if (defined(FSL_FEATURE_SMC_HAS_PARAM) && FSL_FEATURE_SMC_HAS_PARAM) +/*! + * @brief Gets the SMC parameter. + * + * This function gets the SMC parameter, including the enabled power mdoes. + * + * @param base SMC peripheral base address. + * @param param Pointer to SMC param structure. + */ +void SMC_GetParam(SMC_Type *base, smc_param_t *param); +#endif + +/*! + * @brief Configures all power mode protection settings. + * + * This function configures the power mode protection settings for + * supported power modes in the specified chip family. The available power modes + * are defined in the smc_power_mode_protection_t. This should be done at an early + * system level initialization stage. See the reference manual for details. + * This register can only write once after the power reset. + * + * The allowed modes are passed as bit map, for example, to allow LLS and VLLS, + * use SMC_SetPowerModeProtection(kSMC_AllowPowerModeVlls | kSMC_AllowPowerModeVlps). + * To allow all modes, use SMC_SetPowerModeProtection(kSMC_AllowPowerModeAll). + * + * @param base SMC peripheral base address. + * @param allowedModes Bitmap of the allowed power modes. + */ +static inline void SMC_SetPowerModeProtection(SMC_Type *base, uint8_t allowedModes) +{ + base->PMPROT = allowedModes; +} + +/*! + * @brief Gets the current power mode status. + * + * This function returns the current power mode stat. Once application + * switches the power mode, it should always check the stat to check whether it + * runs into the specified mode or not. An application should check + * this mode before switching to a different mode. The system requires that + * only certain modes can switch to other specific modes. See the + * reference manual for details and the smc_power_state_t for information about + * the power stat. + * + * @param base SMC peripheral base address. + * @return Current power mode status. + */ +static inline smc_power_state_t SMC_GetPowerModeState(SMC_Type *base) +{ + return (smc_power_state_t)base->PMSTAT; +} + +/*! + * @brief Configure the system to RUN power mode. + * + * @param base SMC peripheral base address. + * @return SMC configuration error code. + */ +status_t SMC_SetPowerModeRun(SMC_Type *base); + +#if (defined(FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE) && FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE) +/*! + * @brief Configure the system to HSRUN power mode. + * + * @param base SMC peripheral base address. + * @return SMC configuration error code. + */ +status_t SMC_SetPowerModeHsrun(SMC_Type *base); +#endif /* FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE */ + +/*! + * @brief Configure the system to WAIT power mode. + * + * @param base SMC peripheral base address. + * @return SMC configuration error code. + */ +status_t SMC_SetPowerModeWait(SMC_Type *base); + +/*! + * @brief Configure the system to Stop power mode. + * + * @param base SMC peripheral base address. + * @param option Partial Stop mode option. + * @return SMC configuration error code. + */ +status_t SMC_SetPowerModeStop(SMC_Type *base, smc_partial_stop_option_t option); + +#if (defined(FSL_FEATURE_SMC_HAS_LPWUI) && FSL_FEATURE_SMC_HAS_LPWUI) +/*! + * @brief Configure the system to VLPR power mode. + * + * @param base SMC peripheral base address. + * @param wakeupMode Enter Normal Run mode if true, else stay in VLPR mode. + * @return SMC configuration error code. + */ +status_t SMC_SetPowerModeVlpr(SMC_Type *base, bool wakeupMode); +#else +/*! + * @brief Configure the system to VLPR power mode. + * + * @param base SMC peripheral base address. + * @return SMC configuration error code. + */ +status_t SMC_SetPowerModeVlpr(SMC_Type *base); +#endif /* FSL_FEATURE_SMC_HAS_LPWUI */ + +/*! + * @brief Configure the system to VLPW power mode. + * + * @param base SMC peripheral base address. + * @return SMC configuration error code. + */ +status_t SMC_SetPowerModeVlpw(SMC_Type *base); + +/*! + * @brief Configure the system to VLPS power mode. + * + * @param base SMC peripheral base address. + * @return SMC configuration error code. + */ +status_t SMC_SetPowerModeVlps(SMC_Type *base); + +#if (defined(FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE) && FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE) +#if ((defined(FSL_FEATURE_SMC_HAS_LLS_SUBMODE) && FSL_FEATURE_SMC_HAS_LLS_SUBMODE) || \ + (defined(FSL_FEATURE_SMC_HAS_LPOPO) && FSL_FEATURE_SMC_HAS_LPOPO)) +/*! + * @brief Configure the system to LLS power mode. + * + * @param base SMC peripheral base address. + * @param config The LLS power mode configuration structure + * @return SMC configuration error code. + */ +status_t SMC_SetPowerModeLls(SMC_Type *base, const smc_power_mode_lls_config_t *config); +#else +/*! + * @brief Configure the system to LLS power mode. + * + * @param base SMC peripheral base address. + * @return SMC configuration error code. + */ +status_t SMC_SetPowerModeLls(SMC_Type *base); +#endif +#endif /* FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE */ + +#if (defined(FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) && FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE) +/*! + * @brief Configure the system to VLLS power mode. + * + * @param base SMC peripheral base address. + * @param config The VLLS power mode configuration structure. + * @return SMC configuration error code. + */ +status_t SMC_SetPowerModeVlls(SMC_Type *base, const smc_power_mode_vlls_config_t *config); +#endif /* FSL_FEATURE_SMC_HAS_VERY_LOW_LEAKAGE_STOP_MODE */ + +/*@}*/ + +#if defined(__cplusplus) +} +#endif /* __cplusplus */ + +/*! @}*/ + +#endif /* _FSL_SMC_H_ */ diff --git a/drivers/fsl_tsi_v2.c b/drivers/fsl_tsi_v2.c new file mode 100644 index 0000000..0464eb2 --- /dev/null +++ b/drivers/fsl_tsi_v2.c @@ -0,0 +1,211 @@ +/* + * Copyright (c) 2014 - 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#include "fsl_tsi_v2.h" + +void TSI_Init(TSI_Type *base, const tsi_config_t *config) +{ + assert(config != NULL); + + bool is_module_enabled = false; + bool is_int_enabled = false; + + CLOCK_EnableClock(kCLOCK_Tsi0); + if (base->GENCS & TSI_GENCS_TSIEN_MASK) + { + is_module_enabled = true; + TSI_EnableModule(base, false); /* Disable module */ + } + if (base->GENCS & TSI_GENCS_TSIIE_MASK) + { + is_int_enabled = true; + TSI_DisableInterrupts(base, kTSI_GlobalInterruptEnable); + } + + TSI_SetHighThreshold(base, config->thresh); + TSI_SetLowThreshold(base, config->thresl); + TSI_SetLowPowerClock(base, config->lpclks); + TSI_SetLowPowerScanInterval(base, config->lpscnitv); + TSI_SetActiveModeSource(base, config->amclks); + TSI_SetActiveModePrescaler(base, config->ampsc); + TSI_SetElectrodeOSCPrescaler(base, config->ps); + TSI_SetElectrodeChargeCurrent(base, config->extchrg); + TSI_SetReferenceChargeCurrent(base, config->refchrg); + TSI_SetNumberOfScans(base, config->nscn); + + if (is_module_enabled) + { + TSI_EnableModule(base, true); + } + if (is_int_enabled) + { + TSI_EnableInterrupts(base, kTSI_GlobalInterruptEnable); + } +} + +void TSI_Deinit(TSI_Type *base) +{ + base->GENCS = 0U; + base->SCANC = 0U; + base->PEN = 0U; + base->THRESHOLD = 0U; + CLOCK_DisableClock(kCLOCK_Tsi0); +} + +void TSI_GetNormalModeDefaultConfig(tsi_config_t *userConfig) +{ + userConfig->thresh = 0U; + userConfig->thresl = 0U; + userConfig->lpclks = kTSI_LowPowerClockSource_LPOCLK; + userConfig->lpscnitv = kTSI_LowPowerInterval_100ms; + userConfig->amclks = kTSI_ActiveClkSource_LPOSCCLK; + userConfig->ampsc = kTSI_ActiveModePrescaler_8div; + userConfig->ps = kTSI_ElecOscPrescaler_2div; + userConfig->extchrg = kTSI_ExtOscChargeCurrent_10uA; + userConfig->refchrg = kTSI_RefOscChargeCurrent_10uA; + userConfig->nscn = kTSI_ConsecutiveScansNumber_8time; +} + +void TSI_GetLowPowerModeDefaultConfig(tsi_config_t *userConfig) +{ + userConfig->thresh = 15000U; + userConfig->thresl = 1000U; + userConfig->lpclks = kTSI_LowPowerClockSource_LPOCLK; + userConfig->lpscnitv = kTSI_LowPowerInterval_100ms; + userConfig->amclks = kTSI_ActiveClkSource_LPOSCCLK; + userConfig->ampsc = kTSI_ActiveModePrescaler_64div; + userConfig->ps = kTSI_ElecOscPrescaler_1div; + userConfig->extchrg = kTSI_ExtOscChargeCurrent_2uA; + userConfig->refchrg = kTSI_RefOscChargeCurrent_32uA; + userConfig->nscn = kTSI_ConsecutiveScansNumber_26time; +} + +void TSI_Calibrate(TSI_Type *base, tsi_calibration_data_t *calBuff) +{ + assert(calBuff != NULL); + + uint8_t i = 0U; + bool is_int_enabled = false; + + if (base->GENCS & TSI_GENCS_TSIIE_MASK) + { + is_int_enabled = true; + TSI_DisableInterrupts(base, kTSI_GlobalInterruptEnable); + } + + TSI_EnableChannels(base, 0xFFFFU, true); + TSI_StartSoftwareTrigger(base); + while (!(TSI_GetStatusFlags(base) & kTSI_EndOfScanFlag)) + { + } + + for (i = 0U; i < FSL_FEATURE_TSI_CHANNEL_COUNT; i++) + { + calBuff->calibratedData[i] = TSI_GetNormalModeCounter(base, i); + } + TSI_ClearStatusFlags(base, kTSI_EndOfScanFlag); + TSI_EnableChannels(base, 0xFFFFU, false); + + if (is_int_enabled) + { + TSI_EnableInterrupts(base, kTSI_GlobalInterruptEnable); + } +} + +void TSI_EnableInterrupts(TSI_Type *base, uint32_t mask) +{ + uint32_t regValue = base->GENCS & (~ALL_FLAGS_MASK); + + if (mask & kTSI_GlobalInterruptEnable) + { + regValue |= TSI_GENCS_TSIIE_MASK; + } + if (mask & kTSI_OutOfRangeInterruptEnable) + { + regValue &= (~TSI_GENCS_ESOR_MASK); + } + if (mask & kTSI_EndOfScanInterruptEnable) + { + regValue |= TSI_GENCS_ESOR_MASK; + } + if (mask & kTSI_ErrorInterrruptEnable) + { + regValue |= TSI_GENCS_ERIE_MASK; + } + + base->GENCS = regValue; /* write value to register */ +} + +void TSI_DisableInterrupts(TSI_Type *base, uint32_t mask) +{ + uint32_t regValue = base->GENCS & (~ALL_FLAGS_MASK); + + if (mask & kTSI_GlobalInterruptEnable) + { + regValue &= (~TSI_GENCS_TSIIE_MASK); + } + if (mask & kTSI_OutOfRangeInterruptEnable) + { + regValue |= TSI_GENCS_ESOR_MASK; + } + if (mask & kTSI_EndOfScanInterruptEnable) + { + regValue &= (~TSI_GENCS_ESOR_MASK); + } + if (mask & kTSI_ErrorInterrruptEnable) + { + regValue &= (~TSI_GENCS_ERIE_MASK); + } + + base->GENCS = regValue; /* write value to register */ +} + +void TSI_ClearStatusFlags(TSI_Type *base, uint32_t mask) +{ + uint32_t regValue = base->GENCS & (~ALL_FLAGS_MASK); + + if (mask & kTSI_EndOfScanFlag) + { + regValue |= TSI_GENCS_EOSF_MASK; + } + if (mask & kTSI_OutOfRangeFlag) + { + regValue |= TSI_GENCS_OUTRGF_MASK; + } + if (mask & kTSI_ExternalElectrodeErrorFlag) + { + regValue |= TSI_GENCS_EXTERF_MASK; + } + if (mask & kTSI_OverrunErrorFlag) + { + regValue |= TSI_GENCS_OVRF_MASK; + } + + base->GENCS = regValue; /* write value to register */ +} diff --git a/drivers/fsl_tsi_v2.h b/drivers/fsl_tsi_v2.h new file mode 100644 index 0000000..ee0d590 --- /dev/null +++ b/drivers/fsl_tsi_v2.h @@ -0,0 +1,777 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_TSI_V2_H_ +#define _FSL_TSI_V2_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup tsi_v2_driver + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief TSI driver version */ +#define FSL_TSI_DRIVER_VERSION (MAKE_VERSION(2, 1, 2)) +/*@}*/ + +/*! @brief TSI status flags macro collection */ +#define ALL_FLAGS_MASK (TSI_GENCS_EOSF_MASK |\ + TSI_GENCS_OUTRGF_MASK |\ + TSI_GENCS_EXTERF_MASK |\ + TSI_GENCS_OVRF_MASK) + + +/*! + * @brief TSI number of scan intervals for each electrode. + * + * These constants define the TSI number of consecutive scans in a TSI instance for each electrode. + */ +typedef enum _tsi_n_consecutive_scans +{ + kTSI_ConsecutiveScansNumber_1time = 0U, /*!< Once per electrode */ + kTSI_ConsecutiveScansNumber_2time = 1U, /*!< Twice per electrode */ + kTSI_ConsecutiveScansNumber_3time = 2U, /*!< 3 times consecutive scan */ + kTSI_ConsecutiveScansNumber_4time = 3U, /*!< 4 times consecutive scan */ + kTSI_ConsecutiveScansNumber_5time = 4U, /*!< 5 times consecutive scan */ + kTSI_ConsecutiveScansNumber_6time = 5U, /*!< 6 times consecutive scan */ + kTSI_ConsecutiveScansNumber_7time = 6U, /*!< 7 times consecutive scan */ + kTSI_ConsecutiveScansNumber_8time = 7U, /*!< 8 times consecutive scan */ + kTSI_ConsecutiveScansNumber_9time = 8U, /*!< 9 times consecutive scan */ + kTSI_ConsecutiveScansNumber_10time = 9U, /*!< 10 times consecutive scan */ + kTSI_ConsecutiveScansNumber_11time = 10U, /*!< 11 times consecutive scan */ + kTSI_ConsecutiveScansNumber_12time = 11U, /*!< 12 times consecutive scan */ + kTSI_ConsecutiveScansNumber_13time = 12U, /*!< 13 times consecutive scan */ + kTSI_ConsecutiveScansNumber_14time = 13U, /*!< 14 times consecutive scan */ + kTSI_ConsecutiveScansNumber_15time = 14U, /*!< 15 times consecutive scan */ + kTSI_ConsecutiveScansNumber_16time = 15U, /*!< 16 times consecutive scan */ + kTSI_ConsecutiveScansNumber_17time = 16U, /*!< 17 times consecutive scan */ + kTSI_ConsecutiveScansNumber_18time = 17U, /*!< 18 times consecutive scan */ + kTSI_ConsecutiveScansNumber_19time = 18U, /*!< 19 times consecutive scan */ + kTSI_ConsecutiveScansNumber_20time = 19U, /*!< 20 times consecutive scan */ + kTSI_ConsecutiveScansNumber_21time = 20U, /*!< 21 times consecutive scan */ + kTSI_ConsecutiveScansNumber_22time = 21U, /*!< 22 times consecutive scan */ + kTSI_ConsecutiveScansNumber_23time = 22U, /*!< 23 times consecutive scan */ + kTSI_ConsecutiveScansNumber_24time = 23U, /*!< 24 times consecutive scan */ + kTSI_ConsecutiveScansNumber_25time = 24U, /*!< 25 times consecutive scan */ + kTSI_ConsecutiveScansNumber_26time = 25U, /*!< 26 times consecutive scan */ + kTSI_ConsecutiveScansNumber_27time = 26U, /*!< 27 times consecutive scan */ + kTSI_ConsecutiveScansNumber_28time = 27U, /*!< 28 times consecutive scan */ + kTSI_ConsecutiveScansNumber_29time = 28U, /*!< 29 times consecutive scan */ + kTSI_ConsecutiveScansNumber_30time = 29U, /*!< 30 times consecutive scan */ + kTSI_ConsecutiveScansNumber_31time = 30U, /*!< 31 times consecutive scan */ + kTSI_ConsecutiveScansNumber_32time = 31U /*!< 32 times consecutive scan */ +} tsi_n_consecutive_scans_t; + +/*! + * @brief TSI electrode oscillator prescaler. + * + * These constants define the TSI electrode oscillator prescaler in a TSI instance. + */ +typedef enum _tsi_electrode_osc_prescaler +{ + kTSI_ElecOscPrescaler_1div = 0U, /*!< Electrode oscillator frequency divided by 1 */ + kTSI_ElecOscPrescaler_2div = 1U, /*!< Electrode oscillator frequency divided by 2 */ + kTSI_ElecOscPrescaler_4div = 2U, /*!< Electrode oscillator frequency divided by 4 */ + kTSI_ElecOscPrescaler_8div = 3U, /*!< Electrode oscillator frequency divided by 8 */ + kTSI_ElecOscPrescaler_16div = 4U, /*!< Electrode oscillator frequency divided by 16 */ + kTSI_ElecOscPrescaler_32div = 5U, /*!< Electrode oscillator frequency divided by 32 */ + kTSI_ElecOscPrescaler_64div = 6U, /*!< Electrode oscillator frequency divided by 64 */ + kTSI_ElecOscPrescaler_128div = 7U /*!< Electrode oscillator frequency divided by 128 */ +} tsi_electrode_osc_prescaler_t; + +/*! + * @brief TSI low power mode clock source. + */ +typedef enum _tsi_low_power_clock_source +{ + kTSI_LowPowerClockSource_LPOCLK = 0U, /*!< LPOCLK is selected */ + kTSI_LowPowerClockSource_VLPOSCCLK = 1U /*!< VLPOSCCLK is selected */ +} tsi_low_power_clock_source_t; + +/*! + * @brief TSI low power scan intervals. + * + * These constants define the TSI low power scan intervals in a TSI instance. + */ +typedef enum _tsi_low_power_scan_interval +{ + kTSI_LowPowerInterval_1ms = 0U, /*!< 1 ms scan interval */ + kTSI_LowPowerInterval_5ms = 1U, /*!< 5 ms scan interval */ + kTSI_LowPowerInterval_10ms = 2U, /*!< 10 ms scan interval */ + kTSI_LowPowerInterval_15ms = 3U, /*!< 15 ms scan interval */ + kTSI_LowPowerInterval_20ms = 4U, /*!< 20 ms scan interval */ + kTSI_LowPowerInterval_30ms = 5U, /*!< 30 ms scan interval */ + kTSI_LowPowerInterval_40ms = 6U, /*!< 40 ms scan interval */ + kTSI_LowPowerInterval_50ms = 7U, /*!< 50 ms scan interval */ + kTSI_LowPowerInterval_75ms = 8U, /*!< 75 ms scan interval */ + kTSI_LowPowerInterval_100ms = 9U, /*!< 100 ms scan interval */ + kTSI_LowPowerInterval_125ms = 10U, /*!< 125 ms scan interval */ + kTSI_LowPowerInterval_150ms = 11U, /*!< 150 ms scan interval */ + kTSI_LowPowerInterval_200ms = 12U, /*!< 200 ms scan interval */ + kTSI_LowPowerInterval_300ms = 13U, /*!< 300 ms scan interval */ + kTSI_LowPowerInterval_400ms = 14U, /*!< 400 ms scan interval */ + kTSI_LowPowerInterval_500ms = 15U /*!< 500 ms scan interval */ +} tsi_low_power_scan_interval_t; + +/*! + * @brief TSI Reference oscillator charge current select. + * + * These constants define the TSI Reference oscillator charge current select in a TSI instance. + */ +typedef enum _tsi_reference_osc_charge_current +{ + kTSI_RefOscChargeCurrent_2uA = 0U, /*!< Reference oscillator charge current is 2 µA */ + kTSI_RefOscChargeCurrent_4uA = 1U, /*!< Reference oscillator charge current is 4 µA */ + kTSI_RefOscChargeCurrent_6uA = 2U, /*!< Reference oscillator charge current is 6 µA */ + kTSI_RefOscChargeCurrent_8uA = 3U, /*!< Reference oscillator charge current is 8 µA */ + kTSI_RefOscChargeCurrent_10uA = 4U, /*!< Reference oscillator charge current is 10 µA */ + kTSI_RefOscChargeCurrent_12uA = 5U, /*!< Reference oscillator charge current is 12 µA */ + kTSI_RefOscChargeCurrent_14uA = 6U, /*!< Reference oscillator charge current is 14 µA */ + kTSI_RefOscChargeCurrent_16uA = 7U, /*!< Reference oscillator charge current is 16 µA */ + kTSI_RefOscChargeCurrent_18uA = 8U, /*!< Reference oscillator charge current is 18 µA */ + kTSI_RefOscChargeCurrent_20uA = 9U, /*!< Reference oscillator charge current is 20 µA */ + kTSI_RefOscChargeCurrent_22uA = 10U, /*!< Reference oscillator charge current is 22 µA */ + kTSI_RefOscChargeCurrent_24uA = 11U, /*!< Reference oscillator charge current is 24 µA */ + kTSI_RefOscChargeCurrent_26uA = 12U, /*!< Reference oscillator charge current is 26 µA */ + kTSI_RefOscChargeCurrent_28uA = 13U, /*!< Reference oscillator charge current is 28 µA */ + kTSI_RefOscChargeCurrent_30uA = 14U, /*!< Reference oscillator charge current is 30 µA */ + kTSI_RefOscChargeCurrent_32uA = 15U /*!< Reference oscillator charge current is 32 µA */ +} tsi_reference_osc_charge_current_t; + +/*! + * @brief TSI External oscillator charge current select. + * + * These constants define the TSI External oscillator charge current select in a TSI instance. + */ +typedef enum _tsi_external_osc_charge_current +{ + kTSI_ExtOscChargeCurrent_2uA = 0U, /*!< External oscillator charge current is 2 µA */ + kTSI_ExtOscChargeCurrent_4uA = 1U, /*!< External oscillator charge current is 4 µA */ + kTSI_ExtOscChargeCurrent_6uA = 2U, /*!< External oscillator charge current is 6 µA */ + kTSI_ExtOscChargeCurrent_8uA = 3U, /*!< External oscillator charge current is 8 µA */ + kTSI_ExtOscChargeCurrent_10uA = 4U, /*!< External oscillator charge current is 10 µA */ + kTSI_ExtOscChargeCurrent_12uA = 5U, /*!< External oscillator charge current is 12 µA */ + kTSI_ExtOscChargeCurrent_14uA = 6U, /*!< External oscillator charge current is 14 µA */ + kTSI_ExtOscChargeCurrent_16uA = 7U, /*!< External oscillator charge current is 16 µA */ + kTSI_ExtOscChargeCurrent_18uA = 8U, /*!< External oscillator charge current is 18 µA */ + kTSI_ExtOscChargeCurrent_20uA = 9U, /*!< External oscillator charge current is 20 µA */ + kTSI_ExtOscChargeCurrent_22uA = 10U, /*!< External oscillator charge current is 22 µA */ + kTSI_ExtOscChargeCurrent_24uA = 11U, /*!< External oscillator charge current is 24 µA */ + kTSI_ExtOscChargeCurrent_26uA = 12U, /*!< External oscillator charge current is 26 µA */ + kTSI_ExtOscChargeCurrent_28uA = 13U, /*!< External oscillator charge current is 28 µA */ + kTSI_ExtOscChargeCurrent_30uA = 14U, /*!< External oscillator charge current is 30 µA */ + kTSI_ExtOscChargeCurrent_32uA = 15U /*!< External oscillator charge current is 32 µA */ +} tsi_external_osc_charge_current_t; + +/*! + * @brief TSI Active mode clock source. + * + * These constants define the active mode clock source in a TSI instance. + */ +typedef enum _tsi_active_mode_clock_source +{ + kTSI_ActiveClkSource_LPOSCCLK = 0U, /*!< Active mode clock source is set to LPOOSC Clock */ + kTSI_ActiveClkSource_MCGIRCLK = 1U, /*!< Active mode clock source is set to MCG Internal reference clock */ + kTSI_ActiveClkSource_OSCERCLK = 2U /*!< Active mode clock source is set to System oscillator output */ +} tsi_active_mode_clock_source_t; + +/*! + * @brief TSI active mode prescaler. + * + * These constants define the TSI active mode prescaler in a TSI instance. + */ +typedef enum _tsi_active_mode_prescaler +{ + kTSI_ActiveModePrescaler_1div = 0U, /*!< Input clock source divided by 1 */ + kTSI_ActiveModePrescaler_2div = 1U, /*!< Input clock source divided by 2 */ + kTSI_ActiveModePrescaler_4div = 2U, /*!< Input clock source divided by 4 */ + kTSI_ActiveModePrescaler_8div = 3U, /*!< Input clock source divided by 8 */ + kTSI_ActiveModePrescaler_16div = 4U, /*!< Input clock source divided by 16 */ + kTSI_ActiveModePrescaler_32div = 5U, /*!< Input clock source divided by 32 */ + kTSI_ActiveModePrescaler_64div = 6U, /*!< Input clock source divided by 64 */ + kTSI_ActiveModePrescaler_128div = 7U /*!< Input clock source divided by 128 */ +} tsi_active_mode_prescaler_t; + +/*! @brief TSI status flags. */ +typedef enum _tsi_status_flags +{ + kTSI_EndOfScanFlag = TSI_GENCS_EOSF_MASK, /*!< End-Of-Scan flag */ + kTSI_OutOfRangeFlag = TSI_GENCS_OUTRGF_MASK, /*!< Out-Of-Range flag */ + kTSI_ExternalElectrodeErrorFlag = TSI_GENCS_EXTERF_MASK, /*!< External electrode error flag */ + kTSI_OverrunErrorFlag = TSI_GENCS_OVRF_MASK /*!< Overrun error flag */ +} tsi_status_flags_t; + +/*! @brief TSI feature interrupt source.*/ +typedef enum _tsi_interrupt_enable +{ + kTSI_GlobalInterruptEnable = 1U, /*!< TSI module global interrupt */ + kTSI_OutOfRangeInterruptEnable = 2U, /*!< Out-Of-Range interrupt */ + kTSI_EndOfScanInterruptEnable = 4U, /*!< End-Of-Scan interrupt */ + kTSI_ErrorInterrruptEnable = 8U /*!< Error interrupt */ +} tsi_interrupt_enable_t; + +/*! @brief TSI calibration data storage. */ +typedef struct _tsi_calibration_data +{ + uint16_t calibratedData[FSL_FEATURE_TSI_CHANNEL_COUNT]; /*!< TSI calibration data storage buffer */ +} tsi_calibration_data_t; + +/*! + * @brief TSI configuration structure. + * + * This structure contains the settings for the most common TSI configurations including + * the TSI module charge currents, number of scans, thresholds, and so on. + */ +typedef struct _tsi_config +{ + uint16_t thresh; /*!< High threshold. */ + uint16_t thresl; /*!< Low threshold. */ + tsi_low_power_clock_source_t lpclks; /*!< Low power clock. */ + tsi_low_power_scan_interval_t lpscnitv; /*!< Low power scan interval. */ + tsi_active_mode_clock_source_t amclks; /*!< Active mode clock source. */ + tsi_active_mode_prescaler_t ampsc; /*!< Active mode prescaler. */ + tsi_electrode_osc_prescaler_t ps; /*!< Electrode Oscillator Prescaler */ + tsi_external_osc_charge_current_t extchrg; /*!< External Oscillator charge current */ + tsi_reference_osc_charge_current_t refchrg; /*!< Reference Oscillator charge current */ + tsi_n_consecutive_scans_t nscn; /*!< Number of scans. */ +} tsi_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ + +#ifdef __cplusplus +extern "C" { +#endif + +/*! + * @brief Initializes hardware. + * + * @details Initializes the peripheral to the targeted state specified by the parameter configuration, + * such as initialize and set prescalers, number of scans, clocks, delta voltage + * capacitance trimmer, reference, and electrode charge current and threshold. + * + * @param base TSI peripheral base address. + * @param config Pointer to the TSI peripheral configuration structure. + * @return none + */ +void TSI_Init(TSI_Type *base, const tsi_config_t *config); + +/*! + * @brief De-initializes hardware. + * + * @details De-initializes the peripheral to default state. + * + * @param base TSI peripheral base address. + * @return none + */ +void TSI_Deinit(TSI_Type *base); + +/*! + * @brief Gets TSI normal mode user configuration structure. + * This interface sets the userConfig structure to a default value. The configuration structure only + * includes the settings for the whole TSI. + * The user configure is set to these values: + * @code + userConfig.lpclks = kTSI_LowPowerClockSource_LPOCLK; + userConfig.lpscnitv = kTSI_LowPowerInterval_100ms; + userConfig.amclks = kTSI_ActiveClkSource_LPOSCCLK; + userConfig.ampsc = kTSI_ActiveModePrescaler_8div; + userConfig.ps = kTSI_ElecOscPrescaler_2div; + userConfig.extchrg = kTSI_ExtOscChargeCurrent_10uA; + userConfig.refchrg = kTSI_RefOscChargeCurrent_10uA; + userConfig.nscn = kTSI_ConsecutiveScansNumber_8time; + userConfig.thresh = 0U; + userConfig.thresl = 0U; + @endcode + * + * @param userConfig Pointer to the TSI user configuration structure. + */ +void TSI_GetNormalModeDefaultConfig(tsi_config_t *userConfig); + +/*! + * @brief Gets the TSI low power mode default user configuration structure. + * This interface sets userConfig structure to a default value. The configuration structure only + * includes the settings for the whole TSI. + * The user configure is set to these values: + * @code + userConfig.lpclks = kTSI_LowPowerClockSource_LPOCLK; + userConfig.lpscnitv = kTSI_LowPowerInterval_100ms; + userConfig.amclks = kTSI_ActiveClkSource_LPOSCCLK; + userConfig.ampsc = kTSI_ActiveModePrescaler_64div; + userConfig.ps = kTSI_ElecOscPrescaler_1div; + userConfig.extchrg = kTSI_ExtOscChargeCurrent_2uA; + userConfig.refchrg = kTSI_RefOscChargeCurrent_32uA; + userConfig.nscn = kTSI_ConsecutiveScansNumber_26time; + userConfig.thresh = 15000U; + userConfig.thresl = 1000U; + @endcode + * + * @param userConfig Pointer to the TSI user configuration structure. + */ +void TSI_GetLowPowerModeDefaultConfig(tsi_config_t *userConfig); + +/*! + * @brief Hardware calibration. + * + * @details Calibrates the peripheral to fetch the initial counter value of the enabled electrodes. + * This API is mostly used at the initial application setup. Call this function after the \ref TSI_Init API + * and use the calibrated counter values to set up applications + * (such as to determine under which counter value a touch event occurs). + * + * @note This API is called in normal power modes. + * @note For K60 series, the calibrated baseline counter value CANNOT be used in low power modes. To obtain + * the calibrated counter values in low power modes, see K60 Mask Set Errata for Mask 5N22D. + * @param base TSI peripheral base address. + * @param calBuff Data buffer that store the calibrated counter value. + * @return none + * + */ +void TSI_Calibrate(TSI_Type *base, tsi_calibration_data_t *calBuff); + +/*! + * @brief Enables the TSI interrupt requests. + * @param base TSI peripheral base address. + * @param mask interrupt source + * The parameter can be a combination of the following source if defined: + * @arg kTSI_GlobalInterruptEnable + * @arg kTSI_EndOfScanInterruptEnable + * @arg kTSI_OutOfRangeInterruptEnable + * @arg kTSI_ErrorInterrruptEnable + */ +void TSI_EnableInterrupts(TSI_Type *base, uint32_t mask); + +/*! + * @brief Disables the TSI interrupt requests. + * @param base TSI peripheral base address. + * @param mask interrupt source + * The parameter can be a combination of the following source if defined: + * @arg kTSI_GlobalInterruptEnable + * @arg kTSI_EndOfScanInterruptEnable + * @arg kTSI_OutOfRangeInterruptEnable + * @arg kTSI_ErrorInterrruptEnable + */ +void TSI_DisableInterrupts(TSI_Type *base, uint32_t mask); + +/*! +* @brief Gets the interrupt flags. +* This function get TSI interrupt flags. +* +* @param base TSI peripheral base address. +* @return The mask of these status flag bits. +*/ +static inline uint32_t TSI_GetStatusFlags(TSI_Type *base) +{ + return (base->GENCS & + (kTSI_EndOfScanFlag | kTSI_OutOfRangeFlag | kTSI_ExternalElectrodeErrorFlag | kTSI_OverrunErrorFlag)); +} + +/*! + * @brief Clears the interrupt flags. + * + * This function clears the TSI interrupt flags. + * @note The automatically cleared flags can't be cleared by this function. + * + * @param base TSI peripheral base address. + * @param mask the status flags to clear. + */ +void TSI_ClearStatusFlags(TSI_Type *base, uint32_t mask); + +/*! +* @brief Gets the TSI scan trigger mode. +* +* @param base TSI peripheral base address. +* @return Scan trigger mode. +*/ +static inline uint32_t TSI_GetScanTriggerMode(TSI_Type *base) +{ + return (base->GENCS & TSI_GENCS_STM_MASK); +} + +/*! +* @brief Gets the scan in progress flag. +* +* @param base TSI peripheral base address. +* @return True - if scan is in progress. +* False - if scan is not in progress. +*/ +static inline bool TSI_IsScanInProgress(TSI_Type *base) +{ + return (base->GENCS & TSI_GENCS_SCNIP_MASK); +} + +/*! +* @brief Sets the electrode oscillator prescaler. +* +* @param base TSI peripheral base address. +* @param prescaler Prescaler value. +* @return none. +*/ +static inline void TSI_SetElectrodeOSCPrescaler(TSI_Type *base, tsi_electrode_osc_prescaler_t prescaler) +{ + base->GENCS = (base->GENCS & ~(TSI_GENCS_PS_MASK | ALL_FLAGS_MASK)) | (TSI_GENCS_PS(prescaler)); +} + +/*! +* @brief Sets the number of scans (NSCN). +* +* @param base TSI peripheral base address. +* @param number Number of scans. +* @return none. +*/ +static inline void TSI_SetNumberOfScans(TSI_Type *base, tsi_n_consecutive_scans_t number) +{ + base->GENCS = (base->GENCS & ~(TSI_GENCS_NSCN_MASK | ALL_FLAGS_MASK)) | (TSI_GENCS_NSCN(number)); +} + +/*! +* @brief Enables/disables the TSI module. +* +* @param base TSI peripheral base address. +* @param enable Choose whether to enable TSI module. +* - true Enable module; +* - false Disable module; +* @return none. +*/ +static inline void TSI_EnableModule(TSI_Type *base, bool enable) +{ + if (enable) + { + base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) | TSI_GENCS_TSIEN_MASK; /* Enable module */ + } + else + { + base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) & (~TSI_GENCS_TSIEN_MASK); /* Disable module */ + } +} + +/*! +* @brief Enables/disables the TSI module in low power stop mode. +* +* @param base TSI peripheral base address. +* @param enable Choose whether to enable TSI module in low power modes. +* - true Enable module in low power modes; +* - false Disable module in low power modes; +* @return none. +*/ +static inline void TSI_EnableLowPower(TSI_Type *base, bool enable) +{ + if (enable) + { + base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) | TSI_GENCS_STPE_MASK; /* Enable module in low power stop mode */ + } + else + { + base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) & (~TSI_GENCS_STPE_MASK); /* Disable module in low power stop mode */ + } +} + +/*! +* @brief Enables/disables the periodical (hardware) trigger scan. +* +* @param base TSI peripheral base address. +* @param enable Choose whether to enable periodical trigger scan. +* - true Enable periodical trigger scan; +* - false Enable software trigger scan; +* @return none. +*/ +static inline void TSI_EnablePeriodicalScan(TSI_Type *base, bool enable) +{ + if (enable) + { + base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) | TSI_GENCS_STM_MASK; /* Enable period trigger scan */ + } + else + { + base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) & (~TSI_GENCS_STM_MASK); /* Enable software trigger scan */ + } +} + +/*! +* @brief Starts a measurement (trigger a new measurement). +* +* @param base TSI peripheral base address. +* @return none. +*/ +static inline void TSI_StartSoftwareTrigger(TSI_Type *base) +{ + base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) | TSI_GENCS_SWTS_MASK; +} + +/*! +* @brief Sets a low power scan interval. +* +* @param base TSI peripheral base address. +* @param interval Interval for low power scan. +* @return none. +*/ +static inline void TSI_SetLowPowerScanInterval(TSI_Type *base, tsi_low_power_scan_interval_t interval) +{ + base->GENCS = (base->GENCS & ~(TSI_GENCS_LPSCNITV_MASK | ALL_FLAGS_MASK)) | (TSI_GENCS_LPSCNITV(interval)); +} + +/*! +* @brief Sets a low power clock. +* +* @param base TSI peripheral base address. +* @param clock Low power clock selection. +*/ +static inline void TSI_SetLowPowerClock(TSI_Type *base, uint32_t clock) +{ + base->GENCS = (base->GENCS & ~(TSI_GENCS_LPCLKS_MASK | ALL_FLAGS_MASK)) | (TSI_GENCS_LPCLKS(clock)); +} + +/*! +* @brief Sets the reference oscillator charge current. +* +* @param base TSI peripheral base address. +* @param current The reference oscillator charge current. +* @return none. +*/ +static inline void TSI_SetReferenceChargeCurrent(TSI_Type *base, tsi_reference_osc_charge_current_t current) +{ + base->SCANC = ((base->SCANC) & ~TSI_SCANC_REFCHRG_MASK) | (TSI_SCANC_REFCHRG(current)); +} + +/*! +* @brief Sets the electrode charge current. +* +* @param base TSI peripheral base address. +* @param current The external electrode charge current. +* @return none. +*/ +static inline void TSI_SetElectrodeChargeCurrent(TSI_Type *base, tsi_external_osc_charge_current_t current) +{ + base->SCANC = ((base->SCANC) & ~TSI_SCANC_EXTCHRG_MASK) | (TSI_SCANC_EXTCHRG(current)); +} + +/*! +* @brief Sets the scan modulo value. +* +* @param base TSI peripheral base address. +* @param modulo Scan modulo value. +* @return none. +*/ +static inline void TSI_SetScanModulo(TSI_Type *base, uint32_t modulo) +{ + base->SCANC = ((base->SCANC) & ~TSI_SCANC_SMOD_MASK) | (TSI_SCANC_SMOD(modulo)); +} + +/*! +* @brief Sets the active mode source. +* +* @param base TSI peripheral base address. +* @param source Active mode clock source (LPOSCCLK, MCGIRCLK, OSCERCLK). +* @return none. +*/ +static inline void TSI_SetActiveModeSource(TSI_Type *base, uint32_t source) +{ + base->SCANC = ((base->SCANC) & ~TSI_SCANC_AMCLKS_MASK) | (TSI_SCANC_AMCLKS(source)); +} + +/*! +* @brief Sets the active mode prescaler. +* +* @param base TSI peripheral base address. +* @param prescaler Prescaler value. +* @return none. +*/ +static inline void TSI_SetActiveModePrescaler(TSI_Type *base, tsi_active_mode_prescaler_t prescaler) +{ + base->SCANC = ((base->SCANC) & ~TSI_SCANC_AMPSC_MASK) | (TSI_SCANC_AMPSC(prescaler)); +} + +/*! +* @brief Sets the low power channel. +* Only one channel can be enabled in low power mode. +* +* @param base TSI peripheral base address. +* @param channel Channel number. +* @return none. +*/ +static inline void TSI_SetLowPowerChannel(TSI_Type *base, uint16_t channel) +{ + assert(channel < FSL_FEATURE_TSI_CHANNEL_COUNT); + + base->PEN = ((base->PEN) & ~TSI_PEN_LPSP_MASK) | (TSI_PEN_LPSP(channel)); +} + +/*! + * @brief Gets the enabled channel in low power modes. + * @note Only one channel can be enabled in low power mode. + * + * @param base TSI peripheral base address. + * @return Channel number. + */ +static inline uint32_t TSI_GetLowPowerChannel(TSI_Type *base) +{ + return ((base->PEN & TSI_PEN_LPSP_MASK) >> TSI_PEN_LPSP_SHIFT); +} + +/*! +* @brief Enables/disables a channel. +* +* @param base TSI peripheral base address. +* @param channel Channel to be enabled. +* @param enable Choose whether to enable specific channel. +* - true Enable the specific channel; +* - false Disable the specific channel; +* @return none. +*/ +static inline void TSI_EnableChannel(TSI_Type *base, uint16_t channel, bool enable) +{ + assert(channel < FSL_FEATURE_TSI_CHANNEL_COUNT); + + if (enable) + { + base->PEN |= (1U << channel); /* Enable this specific channel */ + } + else + { + base->PEN &= ~(1U << channel); /* Disable this specific channel */ + } +} + +/*! +* @brief Enables/disables channels. +* The function enables or disables channels by mask. It can enable/disable all channels at once. +* +* @param base TSI peripheral base address. +* @param channelsMask Channels mask that indicate channels that are to be enabled/disabled. +* @param enable Choose to enable or disable the specified channels. +* - true Enable the specified channels; +* - false Disable the specified channels; +* @return none. +*/ +static inline void TSI_EnableChannels(TSI_Type *base, uint16_t channelsMask, bool enable) +{ + if (enable) + { + base->PEN |= channelsMask; /* Enable these specified channels */ + } + else + { + base->PEN &= ~(0x0000FFFFU & (uint32_t)channelsMask); /* Disable these specified channels */ + } +} + +/*! + * @brief Returns if a channel is enabled. + * + * @param base TSI peripheral base address. + * @param channel Channel to be checked. + * + * @return true - if the channel is enabled; + * false - if the channel is disabled; + */ +static inline bool TSI_IsChannelEnabled(TSI_Type *base, uint16_t channel) +{ + assert(channel < FSL_FEATURE_TSI_CHANNEL_COUNT); + + return ((base->PEN) & (1U << channel)); +} + +/*! +* @brief Returns the mask of enabled channels. +* +* @param base TSI peripheral base address. +* @return Channels mask that indicates currently enabled channels. +*/ +static inline uint16_t TSI_GetEnabledChannels(TSI_Type *base) +{ + return (uint16_t)(base->PEN & 0x0000FFFFU); +} + +/*! +* @brief Gets the wake up channel counter for low-power mode usage. +* +* @param base TSI peripheral base address. +* @return Wake up counter value. +*/ +static inline uint16_t TSI_GetWakeUpChannelCounter(TSI_Type *base) +{ + return (uint16_t)base->WUCNTR; +} + +/*! +* @brief Gets the TSI conversion counter of a specific channel in normal mode. +* @note This API can only be used in normal active modes. +* +* @param base TSI peripheral base address. +* @param channel Index of the specific TSI channel. +* +* @return The counter value of the specific channel. +*/ +static inline uint16_t TSI_GetNormalModeCounter(TSI_Type *base, uint16_t channel) +{ + assert(channel < FSL_FEATURE_TSI_CHANNEL_COUNT); + + uint16_t *counter = (uint16_t *)((uint32_t)(&(((base)->CNTR1))) + (channel * 2U)); + return (uint16_t)(*counter); +} + +/*! +* @brief Sets a low threshold. +* +* @param base TSI peripheral base address. +* @param low_threshold Low counter threshold. +* @return none. +*/ +static inline void TSI_SetLowThreshold(TSI_Type *base, uint16_t low_threshold) +{ + base->THRESHOLD = ((base->THRESHOLD) & ~TSI_THRESHOLD_LTHH_MASK) | (TSI_THRESHOLD_LTHH(low_threshold)); +} + +/*! +* @brief Sets a high threshold. +* +* @param base TSI peripheral base address. +* @param high_threshold High counter threshold. +* @return none. +*/ +static inline void TSI_SetHighThreshold(TSI_Type *base, uint16_t high_threshold) +{ + base->THRESHOLD = ((base->THRESHOLD) & ~TSI_THRESHOLD_HTHH_MASK) | (TSI_THRESHOLD_HTHH(high_threshold)); +} + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +/*! @}*/ + +#endif /* _FSL_TSI_V2_H_*/ diff --git a/drivers/fsl_uart.c b/drivers/fsl_uart.c new file mode 100644 index 0000000..121be44 --- /dev/null +++ b/drivers/fsl_uart.c @@ -0,0 +1,1128 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_uart.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/* UART transfer state. */ +enum _uart_tansfer_states +{ + kUART_TxIdle, /* TX idle. */ + kUART_TxBusy, /* TX busy. */ + kUART_RxIdle, /* RX idle. */ + kUART_RxBusy /* RX busy. */ +}; + +/* Typedef for interrupt handler. */ +typedef void (*uart_isr_t)(UART_Type *base, uart_handle_t *handle); + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/*! + * @brief Get the UART instance from peripheral base address. + * + * @param base UART peripheral base address. + * @return UART instance. + */ +uint32_t UART_GetInstance(UART_Type *base); + +/*! + * @brief Get the length of received data in RX ring buffer. + * + * @param handle UART handle pointer. + * @return Length of received data in RX ring buffer. + */ +static size_t UART_TransferGetRxRingBufferLength(uart_handle_t *handle); + +/*! + * @brief Check whether the RX ring buffer is full. + * + * @param handle UART handle pointer. + * @retval true RX ring buffer is full. + * @retval false RX ring buffer is not full. + */ +static bool UART_TransferIsRxRingBufferFull(uart_handle_t *handle); + +/*! + * @brief Read RX register using non-blocking method. + * + * This function reads data from the TX register directly, upper layer must make + * sure the RX register is full or TX FIFO has data before calling this function. + * + * @param base UART peripheral base address. + * @param data Start addresss of the buffer to store the received data. + * @param length Size of the buffer. + */ +static void UART_ReadNonBlocking(UART_Type *base, uint8_t *data, size_t length); + +/*! + * @brief Write to TX register using non-blocking method. + * + * This function writes data to the TX register directly, upper layer must make + * sure the TX register is empty or TX FIFO has empty room before calling this function. + * + * @note This function does not check whether all the data has been sent out to bus, + * so before disable TX, check kUART_TransmissionCompleteFlag to ensure the TX is + * finished. + * + * @param base UART peripheral base address. + * @param data Start addresss of the data to write. + * @param length Size of the buffer to be sent. + */ +static void UART_WriteNonBlocking(UART_Type *base, const uint8_t *data, size_t length); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/* Array of UART handle. */ +#if (defined(UART5)) +#define UART_HANDLE_ARRAY_SIZE 6 +#else /* UART5 */ +#if (defined(UART4)) +#define UART_HANDLE_ARRAY_SIZE 5 +#else /* UART4 */ +#if (defined(UART3)) +#define UART_HANDLE_ARRAY_SIZE 4 +#else /* UART3 */ +#if (defined(UART2)) +#define UART_HANDLE_ARRAY_SIZE 3 +#else /* UART2 */ +#if (defined(UART1)) +#define UART_HANDLE_ARRAY_SIZE 2 +#else /* UART1 */ +#if (defined(UART0)) +#define UART_HANDLE_ARRAY_SIZE 1 +#else /* UART0 */ +#error No UART instance. +#endif /* UART 0 */ +#endif /* UART 1 */ +#endif /* UART 2 */ +#endif /* UART 3 */ +#endif /* UART 4 */ +#endif /* UART 5 */ +static uart_handle_t *s_uartHandle[UART_HANDLE_ARRAY_SIZE]; +/* Array of UART peripheral base address. */ +static UART_Type *const s_uartBases[] = UART_BASE_PTRS; + +/* Array of UART IRQ number. */ +static const IRQn_Type s_uartIRQ[] = UART_RX_TX_IRQS; +/* Array of UART clock name. */ +static const clock_ip_name_t s_uartClock[] = UART_CLOCKS; + +/* UART ISR for transactional APIs. */ +static uart_isr_t s_uartIsr; + +/******************************************************************************* + * Code + ******************************************************************************/ + +uint32_t UART_GetInstance(UART_Type *base) +{ + uint32_t instance; + uint32_t uartArrayCount = (sizeof(s_uartBases) / sizeof(s_uartBases[0])); + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < uartArrayCount; instance++) + { + if (s_uartBases[instance] == base) + { + break; + } + } + + assert(instance < uartArrayCount); + + return instance; +} + +static size_t UART_TransferGetRxRingBufferLength(uart_handle_t *handle) +{ + assert(handle); + + size_t size; + + if (handle->rxRingBufferTail > handle->rxRingBufferHead) + { + size = (size_t)(handle->rxRingBufferHead + handle->rxRingBufferSize - handle->rxRingBufferTail); + } + else + { + size = (size_t)(handle->rxRingBufferHead - handle->rxRingBufferTail); + } + + return size; +} + +static bool UART_TransferIsRxRingBufferFull(uart_handle_t *handle) +{ + assert(handle); + + bool full; + + if (UART_TransferGetRxRingBufferLength(handle) == (handle->rxRingBufferSize - 1U)) + { + full = true; + } + else + { + full = false; + } + + return full; +} + +status_t UART_Init(UART_Type *base, const uart_config_t *config, uint32_t srcClock_Hz) +{ + assert(config); + assert(config->baudRate_Bps); +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + assert(FSL_FEATURE_UART_FIFO_SIZEn(base) >= config->txFifoWatermark); + assert(FSL_FEATURE_UART_FIFO_SIZEn(base) >= config->rxFifoWatermark); +#endif + + uint16_t sbr = 0; + uint8_t temp = 0; + uint32_t baudDiff = 0; + + /* Calculate the baud rate modulo divisor, sbr*/ + sbr = srcClock_Hz / (config->baudRate_Bps * 16); + /* set sbrTemp to 1 if the sourceClockInHz can not satisfy the desired baud rate */ + if (sbr == 0) + { + sbr = 1; + } +#if defined(FSL_FEATURE_UART_HAS_BAUD_RATE_FINE_ADJUST_SUPPORT) && FSL_FEATURE_UART_HAS_BAUD_RATE_FINE_ADJUST_SUPPORT + /* Determine if a fractional divider is needed to fine tune closer to the + * desired baud, each value of brfa is in 1/32 increments, + * hence the multiply-by-32. */ + uint16_t brfa = (32 * srcClock_Hz / (config->baudRate_Bps * 16)) - 32 * sbr; + + /* Calculate the baud rate based on the temporary SBR values and BRFA */ + baudDiff = (srcClock_Hz * 2 / ((sbr * 32 + brfa))) - config->baudRate_Bps; + +#else + /* Calculate the baud rate based on the temporary SBR values */ + baudDiff = (srcClock_Hz / (sbr * 16)) - config->baudRate_Bps; + + /* Select the better value between sbr and (sbr + 1) */ + if (baudDiff > (config->baudRate_Bps - (srcClock_Hz / (16 * (sbr + 1))))) + { + baudDiff = config->baudRate_Bps - (srcClock_Hz / (16 * (sbr + 1))); + sbr++; + } +#endif + + /* next, check to see if actual baud rate is within 3% of desired baud rate + * based on the calculate SBR value */ + if (baudDiff > ((config->baudRate_Bps / 100) * 3)) + { + /* Unacceptable baud rate difference of more than 3%*/ + return kStatus_UART_BaudrateNotSupport; + } + + /* Enable uart clock */ + CLOCK_EnableClock(s_uartClock[UART_GetInstance(base)]); + + /* Disable UART TX RX before setting. */ + base->C2 &= ~(UART_C2_TE_MASK | UART_C2_RE_MASK); + + /* Write the sbr value to the BDH and BDL registers*/ + base->BDH = (base->BDH & ~UART_BDH_SBR_MASK) | (uint8_t)(sbr >> 8); + base->BDL = (uint8_t)sbr; + +#if defined(FSL_FEATURE_UART_HAS_BAUD_RATE_FINE_ADJUST_SUPPORT) && FSL_FEATURE_UART_HAS_BAUD_RATE_FINE_ADJUST_SUPPORT + /* Write the brfa value to the register*/ + base->C4 = (base->C4 & ~UART_C4_BRFA_MASK) | (brfa & UART_C4_BRFA_MASK); +#endif + + /* Set bit count and parity mode. */ + temp = base->C1 & ~(UART_C1_PE_MASK | UART_C1_PT_MASK | UART_C1_M_MASK); + + if (kUART_ParityDisabled != config->parityMode) + { + temp |= (UART_C1_M_MASK | (uint8_t)config->parityMode); + } + + base->C1 = temp; + +#if defined(FSL_FEATURE_UART_HAS_STOP_BIT_CONFIG_SUPPORT) && FSL_FEATURE_UART_HAS_STOP_BIT_CONFIG_SUPPORT + /* Set stop bit per char */ + base->BDH = (base->BDH & ~UART_BDH_SBNS_MASK) | UART_BDH_SBNS((uint8_t)config->stopBitCount); +#endif + +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + /* Set tx/rx FIFO watermark */ + base->TWFIFO = config->txFifoWatermark; + base->RWFIFO = config->rxFifoWatermark; + + /* Enable tx/rx FIFO */ + base->PFIFO |= (UART_PFIFO_TXFE_MASK | UART_PFIFO_RXFE_MASK); + + /* Flush FIFO */ + base->CFIFO |= (UART_CFIFO_TXFLUSH_MASK | UART_CFIFO_RXFLUSH_MASK); +#endif + + /* Enable TX/RX base on configure structure. */ + temp = base->C2; + + if (config->enableTx) + { + temp |= UART_C2_TE_MASK; + } + + if (config->enableRx) + { + temp |= UART_C2_RE_MASK; + } + + base->C2 = temp; + + return kStatus_Success; +} + +void UART_Deinit(UART_Type *base) +{ +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + /* Wait tx FIFO send out*/ + while (0 != base->TCFIFO) + { + } +#endif + /* Wait last char shoft out */ + while (0 == (base->S1 & UART_S1_TC_MASK)) + { + } + + /* Disable the module. */ + base->C2 = 0; + + /* Disable uart clock */ + CLOCK_DisableClock(s_uartClock[UART_GetInstance(base)]); +} + +void UART_GetDefaultConfig(uart_config_t *config) +{ + assert(config); + + config->baudRate_Bps = 115200U; + config->parityMode = kUART_ParityDisabled; +#if defined(FSL_FEATURE_UART_HAS_STOP_BIT_CONFIG_SUPPORT) && FSL_FEATURE_UART_HAS_STOP_BIT_CONFIG_SUPPORT + config->stopBitCount = kUART_OneStopBit; +#endif +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + config->txFifoWatermark = 0; + config->rxFifoWatermark = 1; +#endif + config->enableTx = false; + config->enableRx = false; +} + +status_t UART_SetBaudRate(UART_Type *base, uint32_t baudRate_Bps, uint32_t srcClock_Hz) +{ + assert(baudRate_Bps); + + uint16_t sbr = 0; + uint32_t baudDiff = 0; + uint8_t oldCtrl; + + /* Calculate the baud rate modulo divisor, sbr*/ + sbr = srcClock_Hz / (baudRate_Bps * 16); + /* set sbrTemp to 1 if the sourceClockInHz can not satisfy the desired baud rate */ + if (sbr == 0) + { + sbr = 1; + } +#if defined(FSL_FEATURE_UART_HAS_BAUD_RATE_FINE_ADJUST_SUPPORT) && FSL_FEATURE_UART_HAS_BAUD_RATE_FINE_ADJUST_SUPPORT + /* Determine if a fractional divider is needed to fine tune closer to the + * desired baud, each value of brfa is in 1/32 increments, + * hence the multiply-by-32. */ + uint16_t brfa = (32 * srcClock_Hz / (baudRate_Bps * 16)) - 32 * sbr; + + /* Calculate the baud rate based on the temporary SBR values and BRFA */ + baudDiff = (srcClock_Hz * 2 / ((sbr * 32 + brfa))) - baudRate_Bps; + +#else + /* Calculate the baud rate based on the temporary SBR values */ + baudDiff = (srcClock_Hz / (sbr * 16)) - baudRate_Bps; + + /* Select the better value between sbr and (sbr + 1) */ + if (baudDiff > (baudRate_Bps - (srcClock_Hz / (16 * (sbr + 1))))) + { + baudDiff = baudRate_Bps - (srcClock_Hz / (16 * (sbr + 1))); + sbr++; + } +#endif + + /* next, check to see if actual baud rate is within 3% of desired baud rate + * based on the calculate SBR value */ + if (baudDiff < ((baudRate_Bps / 100) * 3)) + { + /* Store C2 before disable Tx and Rx */ + oldCtrl = base->C2; + + /* Disable UART TX RX before setting. */ + base->C2 &= ~(UART_C2_TE_MASK | UART_C2_RE_MASK); + + /* Write the sbr value to the BDH and BDL registers*/ + base->BDH = (base->BDH & ~UART_BDH_SBR_MASK) | (uint8_t)(sbr >> 8); + base->BDL = (uint8_t)sbr; + +#if defined(FSL_FEATURE_UART_HAS_BAUD_RATE_FINE_ADJUST_SUPPORT) && FSL_FEATURE_UART_HAS_BAUD_RATE_FINE_ADJUST_SUPPORT + /* Write the brfa value to the register*/ + base->C4 = (base->C4 & ~UART_C4_BRFA_MASK) | (brfa & UART_C4_BRFA_MASK); +#endif + /* Restore C2. */ + base->C2 = oldCtrl; + + return kStatus_Success; + } + else + { + /* Unacceptable baud rate difference of more than 3%*/ + return kStatus_UART_BaudrateNotSupport; + } +} + +void UART_EnableInterrupts(UART_Type *base, uint32_t mask) +{ + mask &= kUART_AllInterruptsEnable; + + /* The interrupt mask is combined by control bits from several register: ((CFIFO<<24) | (C3<<16) | (C2<<8) |(BDH)) + */ + base->BDH |= mask; + base->C2 |= (mask >> 8); + base->C3 |= (mask >> 16); + +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + base->CFIFO |= (mask >> 24); +#endif +} + +void UART_DisableInterrupts(UART_Type *base, uint32_t mask) +{ + mask &= kUART_AllInterruptsEnable; + + /* The interrupt mask is combined by control bits from several register: ((CFIFO<<24) | (C3<<16) | (C2<<8) |(BDH)) + */ + base->BDH &= ~mask; + base->C2 &= ~(mask >> 8); + base->C3 &= ~(mask >> 16); + +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + base->CFIFO &= ~(mask >> 24); +#endif +} + +uint32_t UART_GetEnabledInterrupts(UART_Type *base) +{ + uint32_t temp; + + temp = base->BDH | ((uint32_t)(base->C2) << 8) | ((uint32_t)(base->C3) << 16); + +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + temp |= ((uint32_t)(base->CFIFO) << 24); +#endif + + return temp & kUART_AllInterruptsEnable; +} + +uint32_t UART_GetStatusFlags(UART_Type *base) +{ + uint32_t status_flag; + + status_flag = base->S1 | ((uint32_t)(base->S2) << 8); + +#if defined(FSL_FEATURE_UART_HAS_EXTENDED_DATA_REGISTER_FLAGS) && FSL_FEATURE_UART_HAS_EXTENDED_DATA_REGISTER_FLAGS + status_flag |= ((uint32_t)(base->ED) << 16); +#endif + +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + status_flag |= ((uint32_t)(base->SFIFO) << 24); +#endif + + return status_flag; +} + +status_t UART_ClearStatusFlags(UART_Type *base, uint32_t mask) +{ + uint8_t reg = base->S2; + status_t status; + +#if defined(FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT) && FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT + reg &= ~(UART_S2_RXEDGIF_MASK | UART_S2_LBKDIF_MASK); +#else + reg &= ~UART_S2_RXEDGIF_MASK; +#endif + + base->S2 = reg | (uint8_t)(mask >> 8); + +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + base->SFIFO = (uint8_t)(mask >> 24); +#endif + + if (mask & (kUART_IdleLineFlag | kUART_NoiseErrorFlag | kUART_FramingErrorFlag | + kUART_ParityErrorFlag)) + { + /* Read base->D to clear the flags. */ + (void)base->S1; + (void)base->D; + } + + if (mask & kUART_RxOverrunFlag) + { + /* Read base->D to clear the flags and Flush all data in FIFO. */ + (void)base->S1; + (void)base->D; +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + /* Flush FIFO date, otherwise FIFO pointer will be in unknown state. */ + base->CFIFO |= UART_CFIFO_RXFLUSH_MASK; +#endif + } + + /* If some flags still pending. */ + if (mask & UART_GetStatusFlags(base)) + { + /* Some flags can only clear or set by the hardware itself, these flags are: kUART_TxDataRegEmptyFlag, + kUART_TransmissionCompleteFlag, kUART_RxDataRegFullFlag, kUART_RxActiveFlag, kUART_NoiseErrorInRxDataRegFlag, + kUART_ParityErrorInRxDataRegFlag, kUART_TxFifoEmptyFlag, kUART_RxFifoEmptyFlag. */ + status = kStatus_UART_FlagCannotClearManually; + } + else + { + status = kStatus_Success; + } + + return status; +} + +void UART_WriteBlocking(UART_Type *base, const uint8_t *data, size_t length) +{ + /* This API can only ensure that the data is written into the data buffer but can't + ensure all data in the data buffer are sent into the transmit shift buffer. */ + while (length--) + { + while (!(base->S1 & UART_S1_TDRE_MASK)) + { + } + base->D = *(data++); + } +} + +static void UART_WriteNonBlocking(UART_Type *base, const uint8_t *data, size_t length) +{ + assert(data); + + size_t i; + + /* The Non Blocking write data API assume user have ensured there is enough space in + peripheral to write. */ + for (i = 0; i < length; i++) + { + base->D = data[i]; + } +} + +status_t UART_ReadBlocking(UART_Type *base, uint8_t *data, size_t length) +{ + assert(data); + + uint32_t statusFlag; + + while (length--) + { +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + while (!base->RCFIFO) +#else + while (!(base->S1 & UART_S1_RDRF_MASK)) +#endif + { + statusFlag = UART_GetStatusFlags(base); + + if (statusFlag & kUART_RxOverrunFlag) + { + return kStatus_UART_RxHardwareOverrun; + } + + if (statusFlag & kUART_NoiseErrorFlag) + { + return kStatus_UART_NoiseError; + } + + if (statusFlag & kUART_FramingErrorFlag) + { + return kStatus_UART_FramingError; + } + + if (statusFlag & kUART_ParityErrorFlag) + { + return kStatus_UART_ParityError; + } + } + *(data++) = base->D; + } + + return kStatus_Success; +} + +static void UART_ReadNonBlocking(UART_Type *base, uint8_t *data, size_t length) +{ + assert(data); + + size_t i; + + /* The Non Blocking read data API assume user have ensured there is enough space in + peripheral to write. */ + for (i = 0; i < length; i++) + { + data[i] = base->D; + } +} + +void UART_TransferCreateHandle(UART_Type *base, + uart_handle_t *handle, + uart_transfer_callback_t callback, + void *userData) +{ + assert(handle); + + uint32_t instance; + + /* Zero the handle. */ + memset(handle, 0, sizeof(*handle)); + + /* Set the TX/RX state. */ + handle->rxState = kUART_RxIdle; + handle->txState = kUART_TxIdle; + + /* Set the callback and user data. */ + handle->callback = callback; + handle->userData = userData; + +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + /* Note: + Take care of the RX FIFO, RX interrupt request only assert when received bytes + equal or more than RX water mark, there is potential issue if RX water + mark larger than 1. + For example, if RX FIFO water mark is 2, upper layer needs 5 bytes and + 5 bytes are received. the last byte will be saved in FIFO but not trigger + RX interrupt because the water mark is 2. + */ + base->RWFIFO = 1U; +#endif + + /* Get instance from peripheral base address. */ + instance = UART_GetInstance(base); + + /* Save the handle in global variables to support the double weak mechanism. */ + s_uartHandle[instance] = handle; + + s_uartIsr = UART_TransferHandleIRQ; + + /* Enable interrupt in NVIC. */ + EnableIRQ(s_uartIRQ[instance]); +} + +void UART_TransferStartRingBuffer(UART_Type *base, uart_handle_t *handle, uint8_t *ringBuffer, size_t ringBufferSize) +{ + assert(handle); + assert(ringBuffer); + + /* Setup the ringbuffer address */ + handle->rxRingBuffer = ringBuffer; + handle->rxRingBufferSize = ringBufferSize; + handle->rxRingBufferHead = 0U; + handle->rxRingBufferTail = 0U; + + /* Enable the interrupt to accept the data when user need the ring buffer. */ + UART_EnableInterrupts(base, kUART_RxDataRegFullInterruptEnable | kUART_RxOverrunInterruptEnable); +} + +void UART_TransferStopRingBuffer(UART_Type *base, uart_handle_t *handle) +{ + assert(handle); + + if (handle->rxState == kUART_RxIdle) + { + UART_DisableInterrupts(base, kUART_RxDataRegFullInterruptEnable | kUART_RxOverrunInterruptEnable); + } + + handle->rxRingBuffer = NULL; + handle->rxRingBufferSize = 0U; + handle->rxRingBufferHead = 0U; + handle->rxRingBufferTail = 0U; +} + +status_t UART_TransferSendNonBlocking(UART_Type *base, uart_handle_t *handle, uart_transfer_t *xfer) +{ + assert(handle); + assert(xfer); + assert(xfer->dataSize); + assert(xfer->data); + + status_t status; + + /* Return error if current TX busy. */ + if (kUART_TxBusy == handle->txState) + { + status = kStatus_UART_TxBusy; + } + else + { + handle->txData = xfer->data; + handle->txDataSize = xfer->dataSize; + handle->txDataSizeAll = xfer->dataSize; + handle->txState = kUART_TxBusy; + + /* Enable transmiter interrupt. */ + UART_EnableInterrupts(base, kUART_TxDataRegEmptyInterruptEnable); + + status = kStatus_Success; + } + + return status; +} + +void UART_TransferAbortSend(UART_Type *base, uart_handle_t *handle) +{ + assert(handle); + + UART_DisableInterrupts(base, kUART_TxDataRegEmptyInterruptEnable | kUART_TransmissionCompleteInterruptEnable); + + handle->txDataSize = 0; + handle->txState = kUART_TxIdle; +} + +status_t UART_TransferGetSendCount(UART_Type *base, uart_handle_t *handle, uint32_t *count) +{ + assert(handle); + assert(count); + + if (kUART_TxIdle == handle->txState) + { + return kStatus_NoTransferInProgress; + } + + *count = handle->txDataSizeAll - handle->txDataSize; + + return kStatus_Success; +} + +status_t UART_TransferReceiveNonBlocking(UART_Type *base, + uart_handle_t *handle, + uart_transfer_t *xfer, + size_t *receivedBytes) +{ + assert(handle); + assert(xfer); + assert(xfer->data); + assert(xfer->dataSize); + + uint32_t i; + status_t status; + /* How many bytes to copy from ring buffer to user memory. */ + size_t bytesToCopy = 0U; + /* How many bytes to receive. */ + size_t bytesToReceive; + /* How many bytes currently have received. */ + size_t bytesCurrentReceived; + uint32_t regPrimask = 0U; + + /* How to get data: + 1. If RX ring buffer is not enabled, then save xfer->data and xfer->dataSize + to uart handle, enable interrupt to store received data to xfer->data. When + all data received, trigger callback. + 2. If RX ring buffer is enabled and not empty, get data from ring buffer first. + If there are enough data in ring buffer, copy them to xfer->data and return. + If there are not enough data in ring buffer, copy all of them to xfer->data, + save the xfer->data remained empty space to uart handle, receive data + to this empty space and trigger callback when finished. */ + + if (kUART_RxBusy == handle->rxState) + { + status = kStatus_UART_RxBusy; + } + else + { + bytesToReceive = xfer->dataSize; + bytesCurrentReceived = 0U; + + /* If RX ring buffer is used. */ + if (handle->rxRingBuffer) + { + /* Disable IRQ, protect ring buffer. */ + regPrimask = DisableGlobalIRQ(); + + /* How many bytes in RX ring buffer currently. */ + bytesToCopy = UART_TransferGetRxRingBufferLength(handle); + + if (bytesToCopy) + { + bytesToCopy = MIN(bytesToReceive, bytesToCopy); + + bytesToReceive -= bytesToCopy; + + /* Copy data from ring buffer to user memory. */ + for (i = 0U; i < bytesToCopy; i++) + { + xfer->data[bytesCurrentReceived++] = handle->rxRingBuffer[handle->rxRingBufferTail]; + + /* Wrap to 0. Not use modulo (%) because it might be large and slow. */ + if (handle->rxRingBufferTail + 1U == handle->rxRingBufferSize) + { + handle->rxRingBufferTail = 0U; + } + else + { + handle->rxRingBufferTail++; + } + } + } + + /* If ring buffer does not have enough data, still need to read more data. */ + if (bytesToReceive) + { + /* No data in ring buffer, save the request to UART handle. */ + handle->rxData = xfer->data + bytesCurrentReceived; + handle->rxDataSize = bytesToReceive; + handle->rxDataSizeAll = bytesToReceive; + handle->rxState = kUART_RxBusy; + } + + /* Enable IRQ if previously enabled. */ + EnableGlobalIRQ(regPrimask); + + /* Call user callback since all data are received. */ + if (0 == bytesToReceive) + { + if (handle->callback) + { + handle->callback(base, handle, kStatus_UART_RxIdle, handle->userData); + } + } + } + /* Ring buffer not used. */ + else + { + handle->rxData = xfer->data + bytesCurrentReceived; + handle->rxDataSize = bytesToReceive; + handle->rxDataSizeAll = bytesToReceive; + handle->rxState = kUART_RxBusy; + + /* Enable RX interrupt. */ + UART_EnableInterrupts(base, kUART_RxDataRegFullInterruptEnable | kUART_RxOverrunInterruptEnable); + } + + /* Return the how many bytes have read. */ + if (receivedBytes) + { + *receivedBytes = bytesCurrentReceived; + } + + status = kStatus_Success; + } + + return status; +} + +void UART_TransferAbortReceive(UART_Type *base, uart_handle_t *handle) +{ + assert(handle); + + /* Only abort the receive to handle->rxData, the RX ring buffer is still working. */ + if (!handle->rxRingBuffer) + { + /* Disable RX interrupt. */ + UART_DisableInterrupts(base, kUART_RxDataRegFullInterruptEnable | kUART_RxOverrunInterruptEnable); + } + + handle->rxDataSize = 0U; + handle->rxState = kUART_RxIdle; +} + +status_t UART_TransferGetReceiveCount(UART_Type *base, uart_handle_t *handle, uint32_t *count) +{ + assert(handle); + assert(count); + + if (kUART_RxIdle == handle->rxState) + { + return kStatus_NoTransferInProgress; + } + + if (!count) + { + return kStatus_InvalidArgument; + } + + *count = handle->rxDataSizeAll - handle->rxDataSize; + + return kStatus_Success; +} + +void UART_TransferHandleIRQ(UART_Type *base, uart_handle_t *handle) +{ + assert(handle); + + uint8_t count; + uint8_t tempCount; + + /* If RX overrun. */ + if (UART_S1_OR_MASK & base->S1) + { + /* Read base->D to clear overrun flag, otherwise the RX does not work. */ + (void)base->D; +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + /* Flush FIFO date, otherwise FIFO pointer will be in unknown state. */ + base->CFIFO |= UART_CFIFO_RXFLUSH_MASK; +#endif + + /* Trigger callback. */ + if (handle->callback) + { + handle->callback(base, handle, kStatus_UART_RxHardwareOverrun, handle->userData); + } + } + + /* Receive data register full */ + if ((UART_S1_RDRF_MASK & base->S1) && (UART_C2_RIE_MASK & base->C2)) + { +/* Get the size that can be stored into buffer for this interrupt. */ +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + count = base->RCFIFO; +#else + count = 1; +#endif + + /* If handle->rxDataSize is not 0, first save data to handle->rxData. */ + while ((count) && (handle->rxDataSize)) + { +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + tempCount = MIN(handle->rxDataSize, count); +#else + tempCount = 1; +#endif + + /* Using non block API to read the data from the registers. */ + UART_ReadNonBlocking(base, handle->rxData, tempCount); + handle->rxData += tempCount; + handle->rxDataSize -= tempCount; + count -= tempCount; + + /* If all the data required for upper layer is ready, trigger callback. */ + if (!handle->rxDataSize) + { + handle->rxState = kUART_RxIdle; + + if (handle->callback) + { + handle->callback(base, handle, kStatus_UART_RxIdle, handle->userData); + } + } + } + + /* If use RX ring buffer, receive data to ring buffer. */ + if (handle->rxRingBuffer) + { + while (count--) + { + /* If RX ring buffer is full, trigger callback to notify over run. */ + if (UART_TransferIsRxRingBufferFull(handle)) + { + if (handle->callback) + { + handle->callback(base, handle, kStatus_UART_RxRingBufferOverrun, handle->userData); + } + } + + /* If ring buffer is still full after callback function, the oldest data is overrided. */ + if (UART_TransferIsRxRingBufferFull(handle)) + { + /* Increase handle->rxRingBufferTail to make room for new data. */ + if (handle->rxRingBufferTail + 1U == handle->rxRingBufferSize) + { + handle->rxRingBufferTail = 0U; + } + else + { + handle->rxRingBufferTail++; + } + } + + /* Read data. */ + handle->rxRingBuffer[handle->rxRingBufferHead] = base->D; + + /* Increase handle->rxRingBufferHead. */ + if (handle->rxRingBufferHead + 1U == handle->rxRingBufferSize) + { + handle->rxRingBufferHead = 0U; + } + else + { + handle->rxRingBufferHead++; + } + } + } + /* If no receive requst pending, stop RX interrupt. */ + else if (!handle->rxDataSize) + { + UART_DisableInterrupts(base, kUART_RxDataRegFullInterruptEnable | kUART_RxOverrunInterruptEnable); + } + else + { + } + } + + /* Send data register empty and the interrupt is enabled. */ + if ((base->S1 & UART_S1_TDRE_MASK) && (base->C2 & UART_C2_TIE_MASK)) + { +/* Get the bytes that available at this moment. */ +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + count = FSL_FEATURE_UART_FIFO_SIZEn(base) - base->TCFIFO; +#else + count = 1; +#endif + + while ((count) && (handle->txDataSize)) + { +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + tempCount = MIN(handle->txDataSize, count); +#else + tempCount = 1; +#endif + + /* Using non block API to write the data to the registers. */ + UART_WriteNonBlocking(base, handle->txData, tempCount); + handle->txData += tempCount; + handle->txDataSize -= tempCount; + count -= tempCount; + + /* If all the data are written to data register, TX finished. */ + if (!handle->txDataSize) + { + handle->txState = kUART_TxIdle; + + /* Disable TX register empty interrupt. */ + base->C2 = (base->C2 & ~UART_C2_TIE_MASK); + + /* Trigger callback. */ + if (handle->callback) + { + handle->callback(base, handle, kStatus_UART_TxIdle, handle->userData); + } + } + } + } +} + +void UART_TransferHandleErrorIRQ(UART_Type *base, uart_handle_t *handle) +{ + /* To be implemented by User. */ +} + +#if defined(UART0) +#if ((!(defined(FSL_FEATURE_SOC_LPSCI_COUNT))) || \ + ((defined(FSL_FEATURE_SOC_LPSCI_COUNT)) && (FSL_FEATURE_SOC_LPSCI_COUNT == 0))) +void UART0_DriverIRQHandler(void) +{ + s_uartIsr(UART0, s_uartHandle[0]); +} + +void UART0_RX_TX_DriverIRQHandler(void) +{ + UART0_DriverIRQHandler(); +} +#endif +#endif + +#if defined(UART1) +void UART1_DriverIRQHandler(void) +{ + s_uartIsr(UART1, s_uartHandle[1]); +} + +void UART1_RX_TX_DriverIRQHandler(void) +{ + UART1_DriverIRQHandler(); +} +#endif + +#if defined(UART2) +void UART2_DriverIRQHandler(void) +{ + s_uartIsr(UART2, s_uartHandle[2]); +} + +void UART2_RX_TX_DriverIRQHandler(void) +{ + UART2_DriverIRQHandler(); +} + +#endif + +#if defined(UART3) +void UART3_DriverIRQHandler(void) +{ + s_uartIsr(UART3, s_uartHandle[3]); +} + +void UART3_RX_TX_DriverIRQHandler(void) +{ + UART3_DriverIRQHandler(); +} +#endif + +#if defined(UART4) +void UART4_DriverIRQHandler(void) +{ + s_uartIsr(UART4, s_uartHandle[4]); +} + +void UART4_RX_TX_DriverIRQHandler(void) +{ + UART4_DriverIRQHandler(); +} +#endif + +#if defined(UART5) +void UART5_DriverIRQHandler(void) +{ + s_uartIsr(UART5, s_uartHandle[5]); +} + +void UART5_RX_TX_DriverIRQHandler(void) +{ + UART5_DriverIRQHandler(); +} +#endif diff --git a/drivers/fsl_uart.h b/drivers/fsl_uart.h new file mode 100644 index 0000000..16f486a --- /dev/null +++ b/drivers/fsl_uart.h @@ -0,0 +1,774 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_UART_H_ +#define _FSL_UART_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup uart_driver + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief UART driver version 2.1.1. */ +#define FSL_UART_DRIVER_VERSION (MAKE_VERSION(2, 1, 1)) +/*@}*/ + +/*! @brief Error codes for the UART driver. */ +enum _uart_status +{ + kStatus_UART_TxBusy = MAKE_STATUS(kStatusGroup_UART, 0), /*!< Transmitter is busy. */ + kStatus_UART_RxBusy = MAKE_STATUS(kStatusGroup_UART, 1), /*!< Receiver is busy. */ + kStatus_UART_TxIdle = MAKE_STATUS(kStatusGroup_UART, 2), /*!< UART transmitter is idle. */ + kStatus_UART_RxIdle = MAKE_STATUS(kStatusGroup_UART, 3), /*!< UART receiver is idle. */ + kStatus_UART_TxWatermarkTooLarge = MAKE_STATUS(kStatusGroup_UART, 4), /*!< TX FIFO watermark too large */ + kStatus_UART_RxWatermarkTooLarge = MAKE_STATUS(kStatusGroup_UART, 5), /*!< RX FIFO watermark too large */ + kStatus_UART_FlagCannotClearManually = + MAKE_STATUS(kStatusGroup_UART, 6), /*!< UART flag can't be manually cleared. */ + kStatus_UART_Error = MAKE_STATUS(kStatusGroup_UART, 7), /*!< Error happens on UART. */ + kStatus_UART_RxRingBufferOverrun = MAKE_STATUS(kStatusGroup_UART, 8), /*!< UART RX software ring buffer overrun. */ + kStatus_UART_RxHardwareOverrun = MAKE_STATUS(kStatusGroup_UART, 9), /*!< UART RX receiver overrun. */ + kStatus_UART_NoiseError = MAKE_STATUS(kStatusGroup_UART, 10), /*!< UART noise error. */ + kStatus_UART_FramingError = MAKE_STATUS(kStatusGroup_UART, 11), /*!< UART framing error. */ + kStatus_UART_ParityError = MAKE_STATUS(kStatusGroup_UART, 12), /*!< UART parity error. */ + kStatus_UART_BaudrateNotSupport = MAKE_STATUS(kStatusGroup_UART, 13), /*!< Baudrate is not support in current clock source */ +}; + +/*! @brief UART parity mode. */ +typedef enum _uart_parity_mode +{ + kUART_ParityDisabled = 0x0U, /*!< Parity disabled */ + kUART_ParityEven = 0x2U, /*!< Parity enabled, type even, bit setting: PE|PT = 10 */ + kUART_ParityOdd = 0x3U, /*!< Parity enabled, type odd, bit setting: PE|PT = 11 */ +} uart_parity_mode_t; + +/*! @brief UART stop bit count. */ +typedef enum _uart_stop_bit_count +{ + kUART_OneStopBit = 0U, /*!< One stop bit */ + kUART_TwoStopBit = 1U, /*!< Two stop bits */ +} uart_stop_bit_count_t; + +/*! + * @brief UART interrupt configuration structure, default settings all disabled. + * + * This structure contains the settings for all of the UART interrupt configurations. + */ +enum _uart_interrupt_enable +{ +#if defined(FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT) && FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT + kUART_LinBreakInterruptEnable = (UART_BDH_LBKDIE_MASK), /*!< LIN break detect interrupt. */ +#endif + kUART_RxActiveEdgeInterruptEnable = (UART_BDH_RXEDGIE_MASK), /*!< RX active edge interrupt. */ + kUART_TxDataRegEmptyInterruptEnable = (UART_C2_TIE_MASK << 8), /*!< Transmit data register empty interrupt. */ + kUART_TransmissionCompleteInterruptEnable = (UART_C2_TCIE_MASK << 8), /*!< Transmission complete interrupt. */ + kUART_RxDataRegFullInterruptEnable = (UART_C2_RIE_MASK << 8), /*!< Receiver data register full interrupt. */ + kUART_IdleLineInterruptEnable = (UART_C2_ILIE_MASK << 8), /*!< Idle line interrupt. */ + kUART_RxOverrunInterruptEnable = (UART_C3_ORIE_MASK << 16), /*!< Receiver overrun interrupt. */ + kUART_NoiseErrorInterruptEnable = (UART_C3_NEIE_MASK << 16), /*!< Noise error flag interrupt. */ + kUART_FramingErrorInterruptEnable = (UART_C3_FEIE_MASK << 16), /*!< Framing error flag interrupt. */ + kUART_ParityErrorInterruptEnable = (UART_C3_PEIE_MASK << 16), /*!< Parity error flag interrupt. */ +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + kUART_RxFifoOverflowInterruptEnable = (UART_CFIFO_RXOFE_MASK << 24), /*!< RX FIFO overflow interrupt. */ + kUART_TxFifoOverflowInterruptEnable = (UART_CFIFO_TXOFE_MASK << 24), /*!< TX FIFO overflow interrupt. */ + kUART_RxFifoUnderflowInterruptEnable = (UART_CFIFO_RXUFE_MASK << 24), /*!< RX FIFO underflow interrupt. */ +#endif + kUART_AllInterruptsEnable = +#if defined(FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT) && FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT + kUART_LinBreakInterruptEnable | +#endif + kUART_RxActiveEdgeInterruptEnable | kUART_TxDataRegEmptyInterruptEnable | + kUART_TransmissionCompleteInterruptEnable | kUART_RxDataRegFullInterruptEnable | + kUART_IdleLineInterruptEnable | kUART_RxOverrunInterruptEnable | kUART_NoiseErrorInterruptEnable | + kUART_FramingErrorInterruptEnable | kUART_ParityErrorInterruptEnable +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + | kUART_RxFifoOverflowInterruptEnable | kUART_TxFifoOverflowInterruptEnable + | kUART_RxFifoUnderflowInterruptEnable +#endif + , +}; + +/*! + * @brief UART status flags. + * + * This provides constants for the UART status flags for use in the UART functions. + */ +enum _uart_flags +{ + kUART_TxDataRegEmptyFlag = (UART_S1_TDRE_MASK), /*!< TX data register empty flag. */ + kUART_TransmissionCompleteFlag = (UART_S1_TC_MASK), /*!< Transmission complete flag. */ + kUART_RxDataRegFullFlag = (UART_S1_RDRF_MASK), /*!< RX data register full flag. */ + kUART_IdleLineFlag = (UART_S1_IDLE_MASK), /*!< Idle line detect flag. */ + kUART_RxOverrunFlag = (UART_S1_OR_MASK), /*!< RX overrun flag. */ + kUART_NoiseErrorFlag = (UART_S1_NF_MASK), /*!< RX takes 3 samples of each received bit. + If any of these samples differ, noise flag sets */ + kUART_FramingErrorFlag = (UART_S1_FE_MASK), /*!< Frame error flag, sets if logic 0 was detected + where stop bit expected */ + kUART_ParityErrorFlag = (UART_S1_PF_MASK), /*!< If parity enabled, sets upon parity error detection */ +#if defined(FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT) && FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT + kUART_LinBreakFlag = + (UART_S2_LBKDIF_MASK << 8), /*!< LIN break detect interrupt flag, sets when + LIN break char detected and LIN circuit enabled */ +#endif + kUART_RxActiveEdgeFlag = (UART_S2_RXEDGIF_MASK << 8), /*!< RX pin active edge interrupt flag, + sets when active edge detected */ + kUART_RxActiveFlag = (UART_S2_RAF_MASK << 8), /*!< Receiver Active Flag (RAF), + sets at beginning of valid start bit */ +#if defined(FSL_FEATURE_UART_HAS_EXTENDED_DATA_REGISTER_FLAGS) && FSL_FEATURE_UART_HAS_EXTENDED_DATA_REGISTER_FLAGS + kUART_NoiseErrorInRxDataRegFlag = (UART_ED_NOISY_MASK << 16), /*!< Noisy bit, sets if noise detected. */ + kUART_ParityErrorInRxDataRegFlag = (UART_ED_PARITYE_MASK << 16), /*!< Paritye bit, sets if parity error detected. */ +#endif +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + kUART_TxFifoEmptyFlag = (UART_SFIFO_TXEMPT_MASK << 24), /*!< TXEMPT bit, sets if TX buffer is empty */ + kUART_RxFifoEmptyFlag = (UART_SFIFO_RXEMPT_MASK << 24), /*!< RXEMPT bit, sets if RX buffer is empty */ + kUART_TxFifoOverflowFlag = (UART_SFIFO_TXOF_MASK << 24), /*!< TXOF bit, sets if TX buffer overflow occurred */ + kUART_RxFifoOverflowFlag = (UART_SFIFO_RXOF_MASK << 24), /*!< RXOF bit, sets if receive buffer overflow */ + kUART_RxFifoUnderflowFlag = (UART_SFIFO_RXUF_MASK << 24), /*!< RXUF bit, sets if receive buffer underflow */ +#endif +}; + +/*! @brief UART configuration structure. */ +typedef struct _uart_config +{ + uint32_t baudRate_Bps; /*!< UART baud rate */ + uart_parity_mode_t parityMode; /*!< Parity mode, disabled (default), even, odd */ +#if defined(FSL_FEATURE_UART_HAS_STOP_BIT_CONFIG_SUPPORT) && FSL_FEATURE_UART_HAS_STOP_BIT_CONFIG_SUPPORT + uart_stop_bit_count_t stopBitCount; /*!< Number of stop bits, 1 stop bit (default) or 2 stop bits */ +#endif +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + uint8_t txFifoWatermark; /*!< TX FIFO watermark */ + uint8_t rxFifoWatermark; /*!< RX FIFO watermark */ +#endif + bool enableTx; /*!< Enable TX */ + bool enableRx; /*!< Enable RX */ +} uart_config_t; + +/*! @brief UART transfer structure. */ +typedef struct _uart_transfer +{ + uint8_t *data; /*!< The buffer of data to be transfer.*/ + size_t dataSize; /*!< The byte count to be transfer. */ +} uart_transfer_t; + +/* Forward declaration of the handle typedef. */ +typedef struct _uart_handle uart_handle_t; + +/*! @brief UART transfer callback function. */ +typedef void (*uart_transfer_callback_t)(UART_Type *base, uart_handle_t *handle, status_t status, void *userData); + +/*! @brief UART handle structure. */ +struct _uart_handle +{ + uint8_t *volatile txData; /*!< Address of remaining data to send. */ + volatile size_t txDataSize; /*!< Size of the remaining data to send. */ + size_t txDataSizeAll; /*!< Size of the data to send out. */ + uint8_t *volatile rxData; /*!< Address of remaining data to receive. */ + volatile size_t rxDataSize; /*!< Size of the remaining data to receive. */ + size_t rxDataSizeAll; /*!< Size of the data to receive. */ + + uint8_t *rxRingBuffer; /*!< Start address of the receiver ring buffer. */ + size_t rxRingBufferSize; /*!< Size of the ring buffer. */ + volatile uint16_t rxRingBufferHead; /*!< Index for the driver to store received data into ring buffer. */ + volatile uint16_t rxRingBufferTail; /*!< Index for the user to get data from the ring buffer. */ + + uart_transfer_callback_t callback; /*!< Callback function. */ + void *userData; /*!< UART callback function parameter.*/ + + volatile uint8_t txState; /*!< TX transfer state. */ + volatile uint8_t rxState; /*!< RX transfer state */ +}; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /* _cplusplus */ + +/*! + * @name Initialization and deinitialization + * @{ + */ + +/*! + * @brief Initializes a UART instance with user configuration structure and peripheral clock. + * + * This function configures the UART module with the user-defined settings. The user can configure the configuration + * structure and also get the default configuration by using the UART_GetDefaultConfig() function. + * Example below shows how to use this API to configure UART. + * @code + * uart_config_t uartConfig; + * uartConfig.baudRate_Bps = 115200U; + * uartConfig.parityMode = kUART_ParityDisabled; + * uartConfig.stopBitCount = kUART_OneStopBit; + * uartConfig.txFifoWatermark = 0; + * uartConfig.rxFifoWatermark = 1; + * UART_Init(UART1, &uartConfig, 20000000U); + * @endcode + * + * @param base UART peripheral base address. + * @param config Pointer to user-defined configuration structure. + * @param srcClock_Hz UART clock source frequency in HZ. + * @retval kStatus_UART_BaudrateNotSupport Baudrate is not support in current clock source. + * @retval kStatus_Success Status UART initialize succeed + */ +status_t UART_Init(UART_Type *base, const uart_config_t *config, uint32_t srcClock_Hz); + +/*! + * @brief Deinitializes a UART instance. + * + * This function waits for TX complete, disables TX and RX, and disables the UART clock. + * + * @param base UART peripheral base address. + */ +void UART_Deinit(UART_Type *base); + +/*! + * @brief Gets the default configuration structure. + * + * This function initializes the UART configuration structure to a default value. The default + * values are: + * uartConfig->baudRate_Bps = 115200U; + * uartConfig->bitCountPerChar = kUART_8BitsPerChar; + * uartConfig->parityMode = kUART_ParityDisabled; + * uartConfig->stopBitCount = kUART_OneStopBit; + * uartConfig->txFifoWatermark = 0; + * uartConfig->rxFifoWatermark = 1; + * uartConfig->enableTx = false; + * uartConfig->enableRx = false; + * + * @param config Pointer to configuration structure. + */ +void UART_GetDefaultConfig(uart_config_t *config); + +/*! + * @brief Sets the UART instance baud rate. + * + * This function configures the UART module baud rate. This function is used to update + * the UART module baud rate after the UART module is initialized by the UART_Init. + * @code + * UART_SetBaudRate(UART1, 115200U, 20000000U); + * @endcode + * + * @param base UART peripheral base address. + * @param baudRate_Bps UART baudrate to be set. + * @param srcClock_Hz UART clock source freqency in HZ. + * @retval kStatus_UART_BaudrateNotSupport Baudrate is not support in current clock source. + * @retval kStatus_Success Set baudrate succeed + */ +status_t UART_SetBaudRate(UART_Type *base, uint32_t baudRate_Bps, uint32_t srcClock_Hz); + +/* @} */ + +/*! + * @name Status + * @{ + */ + +/*! + * @brief Get UART status flags. + * + * This function get all UART status flags, the flags are returned as the logical + * OR value of the enumerators @ref _uart_flags. To check a specific status, + * compare the return value with enumerators in @ref _uart_flags. + * For example, to check whether the TX is empty: + * @code + * if (kUART_TxDataRegEmptyFlag & UART_GetStatusFlags(UART1)) + * { + * ... + * } + * @endcode + * + * @param base UART peripheral base address. + * @return UART status flags which are ORed by the enumerators in the _uart_flags. + */ +uint32_t UART_GetStatusFlags(UART_Type *base); + +/*! + * @brief Clears status flags with the provided mask. + * + * This function clears UART status flags with a provided mask. Automatically cleared flag + * can't be cleared by this function. + * Some flags can only be cleared or set by hardware itself. These flags are: + * kUART_TxDataRegEmptyFlag, kUART_TransmissionCompleteFlag, kUART_RxDataRegFullFlag, + * kUART_RxActiveFlag, kUART_NoiseErrorInRxDataRegFlag, kUART_ParityErrorInRxDataRegFlag, + * kUART_TxFifoEmptyFlag,kUART_RxFifoEmptyFlag + * Note: This API should be called when the Tx/Rx is idle, otherwise it takes no effects. + * + * @param base UART peripheral base address. + * @param mask The status flags to be cleared, it is logical OR value of @ref _uart_flags. + * @retval kStatus_UART_FlagCannotClearManually The flag can't be cleared by this function but + * it is cleared automatically by hardware. + * @retval kStatus_Success Status in the mask are cleared. + */ +status_t UART_ClearStatusFlags(UART_Type *base, uint32_t mask); + +/* @} */ + +/*! + * @name Interrupts + * @{ + */ + +/*! + * @brief Enables UART interrupts according to the provided mask. + * + * This function enables the UART interrupts according to the provided mask. The mask + * is a logical OR of enumeration members. See @ref _uart_interrupt_enable. + * For example, to enable TX empty interrupt and RX full interrupt: + * @code + * UART_EnableInterrupts(UART1,kUART_TxDataRegEmptyInterruptEnable | kUART_RxDataRegFullInterruptEnable); + * @endcode + * + * @param base UART peripheral base address. + * @param mask The interrupts to enable. Logical OR of @ref _uart_interrupt_enable. + */ +void UART_EnableInterrupts(UART_Type *base, uint32_t mask); + +/*! + * @brief Disables the UART interrupts according to the provided mask. + * + * This function disables the UART interrupts according to the provided mask. The mask + * is a logical OR of enumeration members. See @ref _uart_interrupt_enable. + * For example, to disable TX empty interrupt and RX full interrupt: + * @code + * UART_DisableInterrupts(UART1,kUART_TxDataRegEmptyInterruptEnable | kUART_RxDataRegFullInterruptEnable); + * @endcode + * + * @param base UART peripheral base address. + * @param mask The interrupts to disable. Logical OR of @ref _uart_interrupt_enable. + */ +void UART_DisableInterrupts(UART_Type *base, uint32_t mask); + +/*! + * @brief Gets the enabled UART interrupts. + * + * This function gets the enabled UART interrupts. The enabled interrupts are returned + * as the logical OR value of the enumerators @ref _uart_interrupt_enable. To check + * a specific interrupts enable status, compare the return value with enumerators + * in @ref _uart_interrupt_enable. + * For example, to check whether TX empty interrupt is enabled: + * @code + * uint32_t enabledInterrupts = UART_GetEnabledInterrupts(UART1); + * + * if (kUART_TxDataRegEmptyInterruptEnable & enabledInterrupts) + * { + * ... + * } + * @endcode + * + * @param base UART peripheral base address. + * @return UART interrupt flags which are logical OR of the enumerators in @ref _uart_interrupt_enable. + */ +uint32_t UART_GetEnabledInterrupts(UART_Type *base); + +/* @} */ + +#if defined(FSL_FEATURE_UART_HAS_DMA_SELECT) && FSL_FEATURE_UART_HAS_DMA_SELECT +/*! + * @name DMA Control + * @{ + */ + +/*! + * @brief Gets the UART data register address. + * + * This function returns the UART data register address, which is mainly used by DMA/eDMA. + * + * @param base UART peripheral base address. + * @return UART data register address which are used both by transmitter and receiver. + */ +static inline uint32_t UART_GetDataRegisterAddress(UART_Type *base) +{ + return (uint32_t) & (base->D); +} + +/*! + * @brief Enables or disables the UART transmitter DMA request. + * + * This function enables or disables the transmit data register empty flag, S1[TDRE], to generate the DMA requests. + * + * @param base UART peripheral base address. + * @param enable True to enable, false to disable. + */ +static inline void UART_EnableTxDMA(UART_Type *base, bool enable) +{ + if (enable) + { +#if (defined(FSL_FEATURE_UART_IS_SCI) && FSL_FEATURE_UART_IS_SCI) + base->C4 |= UART_C4_TDMAS_MASK; +#else + base->C5 |= UART_C5_TDMAS_MASK; +#endif + base->C2 |= UART_C2_TIE_MASK; + } + else + { +#if (defined(FSL_FEATURE_UART_IS_SCI) && FSL_FEATURE_UART_IS_SCI) + base->C4 &= ~UART_C4_TDMAS_MASK; +#else + base->C5 &= ~UART_C5_TDMAS_MASK; +#endif + base->C2 &= ~UART_C2_TIE_MASK; + } +} + +/*! + * @brief Enables or disables the UART receiver DMA. + * + * This function enables or disables the receiver data register full flag, S1[RDRF], to generate DMA requests. + * + * @param base UART peripheral base address. + * @param enable True to enable, false to disable. + */ +static inline void UART_EnableRxDMA(UART_Type *base, bool enable) +{ + if (enable) + { +#if (defined(FSL_FEATURE_UART_IS_SCI) && FSL_FEATURE_UART_IS_SCI) + base->C4 |= UART_C4_RDMAS_MASK; +#else + base->C5 |= UART_C5_RDMAS_MASK; +#endif + base->C2 |= UART_C2_RIE_MASK; + } + else + { +#if (defined(FSL_FEATURE_UART_IS_SCI) && FSL_FEATURE_UART_IS_SCI) + base->C4 &= ~UART_C4_RDMAS_MASK; +#else + base->C5 &= ~UART_C5_RDMAS_MASK; +#endif + base->C2 &= ~UART_C2_RIE_MASK; + } +} + +/* @} */ +#endif /* FSL_FEATURE_UART_HAS_DMA_SELECT */ + +/*! + * @name Bus Operations + * @{ + */ + +/*! + * @brief Enables or disables the UART transmitter. + * + * This function enables or disables the UART transmitter. + * + * @param base UART peripheral base address. + * @param enable True to enable, false to disable. + */ +static inline void UART_EnableTx(UART_Type *base, bool enable) +{ + if (enable) + { + base->C2 |= UART_C2_TE_MASK; + } + else + { + base->C2 &= ~UART_C2_TE_MASK; + } +} + +/*! + * @brief Enables or disables the UART receiver. + * + * This function enables or disables the UART receiver. + * + * @param base UART peripheral base address. + * @param enable True to enable, false to disable. + */ +static inline void UART_EnableRx(UART_Type *base, bool enable) +{ + if (enable) + { + base->C2 |= UART_C2_RE_MASK; + } + else + { + base->C2 &= ~UART_C2_RE_MASK; + } +} + +/*! + * @brief Writes to the TX register. + * + * This function writes data to the TX register directly. The upper layer must ensure + * that the TX register is empty or TX FIFO has empty room before calling this function. + * + * @param base UART peripheral base address. + * @param data The byte to write. + */ +static inline void UART_WriteByte(UART_Type *base, uint8_t data) +{ + base->D = data; +} + +/*! + * @brief Reads the RX register directly. + * + * This function reads data from the TX register directly. The upper layer must + * ensure that the RX register is full or that the TX FIFO has data before calling this function. + * + * @param base UART peripheral base address. + * @return The byte read from UART data register. + */ +static inline uint8_t UART_ReadByte(UART_Type *base) +{ + return base->D; +} + +/*! + * @brief Writes to the TX register using a blocking method. + * + * This function polls the TX register, waits for the TX register to be empty or for the TX FIFO + * to have room and writes data to the TX buffer. + * + * @note This function does not check whether all the data has been sent out to the bus. + * Before disabling the TX, check kUART_TransmissionCompleteFlag to ensure that the TX is + * finished. + * + * @param base UART peripheral base address. + * @param data Start address of the data to write. + * @param length Size of the data to write. + */ +void UART_WriteBlocking(UART_Type *base, const uint8_t *data, size_t length); + +/*! + * @brief Read RX data register using a blocking method. + * + * This function polls the RX register, waits for the RX register to be full or for RX FIFO to + * have data and read data from the TX register. + * + * @param base UART peripheral base address. + * @param data Start address of the buffer to store the received data. + * @param length Size of the buffer. + * @retval kStatus_UART_RxHardwareOverrun Receiver overrun happened while receiving data. + * @retval kStatus_UART_NoiseError Noise error happened while receiving data. + * @retval kStatus_UART_FramingError Framing error happened while receiving data. + * @retval kStatus_UART_ParityError Parity error happened while receiving data. + * @retval kStatus_Success Successfully received all data. + */ +status_t UART_ReadBlocking(UART_Type *base, uint8_t *data, size_t length); + +/* @} */ + +/*! + * @name Transactional + * @{ + */ + +/*! + * @brief Initializes the UART handle. + * + * This function initializes the UART handle which can be used for other UART + * transactional APIs. Usually, for a specified UART instance, + * call this API once to get the initialized handle. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + * @param callback The callback function. + * @param userData The parameter of the callback function. + */ +void UART_TransferCreateHandle(UART_Type *base, + uart_handle_t *handle, + uart_transfer_callback_t callback, + void *userData); + +/*! + * @brief Sets up the RX ring buffer. + * + * This function sets up the RX ring buffer to a specific UART handle. + * + * When the RX ring buffer is used, data received are stored into the ring buffer even when the + * user doesn't call the UART_TransferReceiveNonBlocking() API. If there is already data received + * in the ring buffer, the user can get the received data from the ring buffer directly. + * + * @note When using the RX ring buffer, one byte is reserved for internal use. In other + * words, if @p ringBufferSize is 32, then only 31 bytes are used for saving data. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + * @param ringBuffer Start address of the ring buffer for background receiving. Pass NULL to disable the ring buffer. + * @param ringBufferSize size of the ring buffer. + */ +void UART_TransferStartRingBuffer(UART_Type *base, uart_handle_t *handle, uint8_t *ringBuffer, size_t ringBufferSize); + +/*! + * @brief Aborts the background transfer and uninstalls the ring buffer. + * + * This function aborts the background transfer and uninstalls the ring buffer. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + */ +void UART_TransferStopRingBuffer(UART_Type *base, uart_handle_t *handle); + +/*! + * @brief Transmits a buffer of data using the interrupt method. + * + * This function sends data using an interrupt method. This is a non-blocking function, which + * returns directly without waiting for all data to be written to the TX register. When + * all data is written to the TX register in the ISR, the UART driver calls the callback + * function and passes the @ref kStatus_UART_TxIdle as status parameter. + * + * @note The kStatus_UART_TxIdle is passed to the upper layer when all data is written + * to the TX register. However it does not ensure that all data are sent out. Before disabling the TX, + * check the kUART_TransmissionCompleteFlag to ensure that the TX is finished. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + * @param xfer UART transfer structure. See #uart_transfer_t. + * @retval kStatus_Success Successfully start the data transmission. + * @retval kStatus_UART_TxBusy Previous transmission still not finished, data not all written to TX register yet. + * @retval kStatus_InvalidArgument Invalid argument. + */ +status_t UART_TransferSendNonBlocking(UART_Type *base, uart_handle_t *handle, uart_transfer_t *xfer); + +/*! + * @brief Aborts the interrupt driven data transmit. + * + * This function aborts the interrupt driven data sending. The user can get the remainBytes to find out + * how many bytes are still not sent out. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + */ +void UART_TransferAbortSend(UART_Type *base, uart_handle_t *handle); + +/*! + * @brief Get the number of bytes that have been written to UART TX register. + * + * This function gets the number of bytes that have been written to UART TX + * register by interrupt method. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + * @param count Send bytes count. + * @retval kStatus_NoTransferInProgress No send in progress. + * @retval kStatus_InvalidArgument Parameter is invalid. + * @retval kStatus_Success Get successfully through the parameter \p count; + */ +status_t UART_TransferGetSendCount(UART_Type *base, uart_handle_t *handle, uint32_t *count); + +/*! + * @brief Receives a buffer of data using an interrupt method. + * + * This function receives data using an interrupt method. This is a non-blocking function, which + * returns without waiting for all data to be received. + * If the RX ring buffer is used and not empty, the data in the ring buffer is copied and + * the parameter @p receivedBytes shows how many bytes are copied from the ring buffer. + * After copying, if the data in the ring buffer is not enough to read, the receive + * request is saved by the UART driver. When the new data arrives, the receive request + * is serviced first. When all data is received, the UART driver notifies the upper layer + * through a callback function and passes the status parameter @ref kStatus_UART_RxIdle. + * For example, the upper layer needs 10 bytes but there are only 5 bytes in the ring buffer. + * The 5 bytes are copied to the xfer->data and this function returns with the + * parameter @p receivedBytes set to 5. For the left 5 bytes, newly arrived data is + * saved from the xfer->data[5]. When 5 bytes are received, the UART driver notifies the upper layer. + * If the RX ring buffer is not enabled, this function enables the RX and RX interrupt + * to receive data to the xfer->data. When all data is received, the upper layer is notified. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + * @param xfer UART transfer structure, see #uart_transfer_t. + * @param receivedBytes Bytes received from the ring buffer directly. + * @retval kStatus_Success Successfully queue the transfer into transmit queue. + * @retval kStatus_UART_RxBusy Previous receive request is not finished. + * @retval kStatus_InvalidArgument Invalid argument. + */ +status_t UART_TransferReceiveNonBlocking(UART_Type *base, + uart_handle_t *handle, + uart_transfer_t *xfer, + size_t *receivedBytes); + +/*! + * @brief Aborts the interrupt-driven data receiving. + * + * This function aborts the interrupt-driven data receiving. The user can get the remainBytes to know + * how many bytes not received yet. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + */ +void UART_TransferAbortReceive(UART_Type *base, uart_handle_t *handle); + +/*! + * @brief Get the number of bytes that have been received. + * + * This function gets the number of bytes that have been received. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + * @param count Receive bytes count. + * @retval kStatus_NoTransferInProgress No receive in progress. + * @retval kStatus_InvalidArgument Parameter is invalid. + * @retval kStatus_Success Get successfully through the parameter \p count; + */ +status_t UART_TransferGetReceiveCount(UART_Type *base, uart_handle_t *handle, uint32_t *count); + +/*! + * @brief UART IRQ handle function. + * + * This function handles the UART transmit and receive IRQ request. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + */ +void UART_TransferHandleIRQ(UART_Type *base, uart_handle_t *handle); + +/*! + * @brief UART Error IRQ handle function. + * + * This function handle the UART error IRQ request. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + */ +void UART_TransferHandleErrorIRQ(UART_Type *base, uart_handle_t *handle); + +/* @} */ + +#if defined(__cplusplus) +} +#endif + +/*! @}*/ + +#endif /* _FSL_UART_H_ */ diff --git a/drivers/fsl_uart_edma.c b/drivers/fsl_uart_edma.c new file mode 100644 index 0000000..a4faa94 --- /dev/null +++ b/drivers/fsl_uart_edma.c @@ -0,0 +1,358 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_uart_edma.h" +#include "fsl_dmamux.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/* Array of UART handle. */ +#if (defined(UART5)) +#define UART_HANDLE_ARRAY_SIZE 6 +#else /* UART5 */ +#if (defined(UART4)) +#define UART_HANDLE_ARRAY_SIZE 5 +#else /* UART4 */ +#if (defined(UART3)) +#define UART_HANDLE_ARRAY_SIZE 4 +#else /* UART3 */ +#if (defined(UART2)) +#define UART_HANDLE_ARRAY_SIZE 3 +#else /* UART2 */ +#if (defined(UART1)) +#define UART_HANDLE_ARRAY_SIZE 2 +#else /* UART1 */ +#if (defined(UART0)) +#define UART_HANDLE_ARRAY_SIZE 1 +#else /* UART0 */ +#error No UART instance. +#endif /* UART 0 */ +#endif /* UART 1 */ +#endif /* UART 2 */ +#endif /* UART 3 */ +#endif /* UART 4 */ +#endif /* UART 5 */ + +/*<! Structure definition for uart_edma_private_handle_t. The structure is private. */ +typedef struct _uart_edma_private_handle +{ + UART_Type *base; + uart_edma_handle_t *handle; +} uart_edma_private_handle_t; + +/* UART EDMA transfer handle. */ +enum _uart_edma_tansfer_states +{ + kUART_TxIdle, /* TX idle. */ + kUART_TxBusy, /* TX busy. */ + kUART_RxIdle, /* RX idle. */ + kUART_RxBusy /* RX busy. */ +}; + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*<! Private handle only used for internally. */ +static uart_edma_private_handle_t s_edmaPrivateHandle[UART_HANDLE_ARRAY_SIZE]; + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/*! + * @brief UART EDMA send finished callback function. + * + * This function is called when UART EDMA send finished. It disables the UART + * TX EDMA request and sends @ref kStatus_UART_TxIdle to UART callback. + * + * @param handle The EDMA handle. + * @param param Callback function parameter. + */ +static void UART_SendEDMACallback(edma_handle_t *handle, void *param, bool transferDone, uint32_t tcds); + +/*! + * @brief UART EDMA receive finished callback function. + * + * This function is called when UART EDMA receive finished. It disables the UART + * RX EDMA request and sends @ref kStatus_UART_RxIdle to UART callback. + * + * @param handle The EDMA handle. + * @param param Callback function parameter. + */ +static void UART_ReceiveEDMACallback(edma_handle_t *handle, void *param, bool transferDone, uint32_t tcds); + +/*! + * @brief Get the UART instance from peripheral base address. + * + * @param base UART peripheral base address. + * @return UART instance. + */ +extern uint32_t UART_GetInstance(UART_Type *base); + +/******************************************************************************* + * Code + ******************************************************************************/ + +static void UART_SendEDMACallback(edma_handle_t *handle, void *param, bool transferDone, uint32_t tcds) +{ + assert(param); + + uart_edma_private_handle_t *uartPrivateHandle = (uart_edma_private_handle_t *)param; + + /* Avoid the warning for unused variables. */ + handle = handle; + tcds = tcds; + + if (transferDone) + { + UART_TransferAbortSendEDMA(uartPrivateHandle->base, uartPrivateHandle->handle); + + if (uartPrivateHandle->handle->callback) + { + uartPrivateHandle->handle->callback(uartPrivateHandle->base, uartPrivateHandle->handle, kStatus_UART_TxIdle, + uartPrivateHandle->handle->userData); + } + } +} + +static void UART_ReceiveEDMACallback(edma_handle_t *handle, void *param, bool transferDone, uint32_t tcds) +{ + assert(param); + + uart_edma_private_handle_t *uartPrivateHandle = (uart_edma_private_handle_t *)param; + + /* Avoid warning for unused parameters. */ + handle = handle; + tcds = tcds; + + if (transferDone) + { + /* Disable transfer. */ + UART_TransferAbortReceiveEDMA(uartPrivateHandle->base, uartPrivateHandle->handle); + + if (uartPrivateHandle->handle->callback) + { + uartPrivateHandle->handle->callback(uartPrivateHandle->base, uartPrivateHandle->handle, kStatus_UART_RxIdle, + uartPrivateHandle->handle->userData); + } + } +} + +void UART_TransferCreateHandleEDMA(UART_Type *base, + uart_edma_handle_t *handle, + uart_edma_transfer_callback_t callback, + void *userData, + edma_handle_t *txEdmaHandle, + edma_handle_t *rxEdmaHandle) +{ + assert(handle); + + uint32_t instance = UART_GetInstance(base); + + s_edmaPrivateHandle[instance].base = base; + s_edmaPrivateHandle[instance].handle = handle; + + memset(handle, 0, sizeof(*handle)); + + handle->rxState = kUART_RxIdle; + handle->txState = kUART_TxIdle; + + handle->rxEdmaHandle = rxEdmaHandle; + handle->txEdmaHandle = txEdmaHandle; + + handle->callback = callback; + handle->userData = userData; + +#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO + /* Note: + Take care of the RX FIFO, EDMA request only assert when received bytes + equal or more than RX water mark, there is potential issue if RX water + mark larger than 1. + For example, if RX FIFO water mark is 2, upper layer needs 5 bytes and + 5 bytes are received. the last byte will be saved in FIFO but not trigger + EDMA transfer because the water mark is 2. + */ + if (rxEdmaHandle) + { + base->RWFIFO = 1U; + } +#endif + + /* Configure TX. */ + if (txEdmaHandle) + { + EDMA_SetCallback(handle->txEdmaHandle, UART_SendEDMACallback, &s_edmaPrivateHandle[instance]); + } + + /* Configure RX. */ + if (rxEdmaHandle) + { + EDMA_SetCallback(handle->rxEdmaHandle, UART_ReceiveEDMACallback, &s_edmaPrivateHandle[instance]); + } +} + +status_t UART_SendEDMA(UART_Type *base, uart_edma_handle_t *handle, uart_transfer_t *xfer) +{ + assert(handle); + assert(handle->txEdmaHandle); + assert(xfer); + assert(xfer->data); + assert(xfer->dataSize); + + edma_transfer_config_t xferConfig; + status_t status; + + /* If previous TX not finished. */ + if (kUART_TxBusy == handle->txState) + { + status = kStatus_UART_TxBusy; + } + else + { + handle->txState = kUART_TxBusy; + handle->txDataSizeAll = xfer->dataSize; + + /* Prepare transfer. */ + EDMA_PrepareTransfer(&xferConfig, xfer->data, sizeof(uint8_t), (void *)UART_GetDataRegisterAddress(base), + sizeof(uint8_t), sizeof(uint8_t), xfer->dataSize, kEDMA_MemoryToPeripheral); + + /* Submit transfer. */ + EDMA_SubmitTransfer(handle->txEdmaHandle, &xferConfig); + EDMA_StartTransfer(handle->txEdmaHandle); + + /* Enable UART TX EDMA. */ + UART_EnableTxDMA(base, true); + + status = kStatus_Success; + } + + return status; +} + +status_t UART_ReceiveEDMA(UART_Type *base, uart_edma_handle_t *handle, uart_transfer_t *xfer) +{ + assert(handle); + assert(handle->rxEdmaHandle); + assert(xfer); + assert(xfer->data); + assert(xfer->dataSize); + + edma_transfer_config_t xferConfig; + status_t status; + + /* If previous RX not finished. */ + if (kUART_RxBusy == handle->rxState) + { + status = kStatus_UART_RxBusy; + } + else + { + handle->rxState = kUART_RxBusy; + handle->rxDataSizeAll = xfer->dataSize; + + /* Prepare transfer. */ + EDMA_PrepareTransfer(&xferConfig, (void *)UART_GetDataRegisterAddress(base), sizeof(uint8_t), xfer->data, + sizeof(uint8_t), sizeof(uint8_t), xfer->dataSize, kEDMA_PeripheralToMemory); + + /* Submit transfer. */ + EDMA_SubmitTransfer(handle->rxEdmaHandle, &xferConfig); + EDMA_StartTransfer(handle->rxEdmaHandle); + + /* Enable UART RX EDMA. */ + UART_EnableRxDMA(base, true); + + status = kStatus_Success; + } + + return status; +} + +void UART_TransferAbortSendEDMA(UART_Type *base, uart_edma_handle_t *handle) +{ + assert(handle); + assert(handle->txEdmaHandle); + + /* Disable UART TX EDMA. */ + UART_EnableTxDMA(base, false); + + /* Stop transfer. */ + EDMA_AbortTransfer(handle->txEdmaHandle); + + handle->txState = kUART_TxIdle; +} + +void UART_TransferAbortReceiveEDMA(UART_Type *base, uart_edma_handle_t *handle) +{ + assert(handle); + assert(handle->rxEdmaHandle); + + /* Disable UART RX EDMA. */ + UART_EnableRxDMA(base, false); + + /* Stop transfer. */ + EDMA_AbortTransfer(handle->rxEdmaHandle); + + handle->rxState = kUART_RxIdle; +} + +status_t UART_TransferGetReceiveCountEDMA(UART_Type *base, uart_edma_handle_t *handle, uint32_t *count) +{ + assert(handle); + assert(handle->rxEdmaHandle); + assert(count); + + if (kUART_RxIdle == handle->rxState) + { + return kStatus_NoTransferInProgress; + } + + *count = handle->rxDataSizeAll - EDMA_GetRemainingBytes(handle->rxEdmaHandle->base, handle->rxEdmaHandle->channel); + + return kStatus_Success; +} + +status_t UART_TransferGetSendCountEDMA(UART_Type *base, uart_edma_handle_t *handle, uint32_t *count) +{ + assert(handle); + assert(handle->txEdmaHandle); + assert(count); + + if (kUART_TxIdle == handle->txState) + { + return kStatus_NoTransferInProgress; + } + + *count = handle->txDataSizeAll - EDMA_GetRemainingBytes(handle->txEdmaHandle->base, handle->txEdmaHandle->channel); + + return kStatus_Success; +} diff --git a/drivers/fsl_uart_edma.h b/drivers/fsl_uart_edma.h new file mode 100644 index 0000000..ea0974a --- /dev/null +++ b/drivers/fsl_uart_edma.h @@ -0,0 +1,189 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_UART_EDMA_H_ +#define _FSL_UART_EDMA_H_ + +#include "fsl_uart.h" +#include "fsl_dmamux.h" +#include "fsl_edma.h" + +/*! + * @addtogroup uart_edma_driver + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/* Forward declaration of the handle typedef. */ +typedef struct _uart_edma_handle uart_edma_handle_t; + +/*! @brief UART transfer callback function. */ +typedef void (*uart_edma_transfer_callback_t)(UART_Type *base, + uart_edma_handle_t *handle, + status_t status, + void *userData); + +/*! +* @brief UART eDMA handle +*/ +struct _uart_edma_handle +{ + uart_edma_transfer_callback_t callback; /*!< Callback function. */ + void *userData; /*!< UART callback function parameter.*/ + size_t rxDataSizeAll; /*!< Size of the data to receive. */ + size_t txDataSizeAll; /*!< Size of the data to send out. */ + + edma_handle_t *txEdmaHandle; /*!< The eDMA TX channel used. */ + edma_handle_t *rxEdmaHandle; /*!< The eDMA RX channel used. */ + + volatile uint8_t txState; /*!< TX transfer state. */ + volatile uint8_t rxState; /*!< RX transfer state */ +}; + +/******************************************************************************* + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name eDMA transactional + * @{ + */ + +/*! + * @brief Initializes the UART handle which is used in transactional functions. + * @param base UART peripheral base address. + * @param handle Pointer to uart_edma_handle_t structure. + * @param callback UART callback, NULL means no callback. + * @param userData User callback function data. + * @param rxEdmaHandle User requested DMA handle for RX DMA transfer. + * @param txEdmaHandle User requested DMA handle for TX DMA transfer. + */ +void UART_TransferCreateHandleEDMA(UART_Type *base, + uart_edma_handle_t *handle, + uart_edma_transfer_callback_t callback, + void *userData, + edma_handle_t *txEdmaHandle, + edma_handle_t *rxEdmaHandle); + +/*! + * @brief Sends data using eDMA. + * + * This function sends data using eDMA. This is a non-blocking function, which returns + * right away. When all data is sent, the send callback function is called. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + * @param xfer UART eDMA transfer structure. See #uart_transfer_t. + * @retval kStatus_Success if succeed, others failed. + * @retval kStatus_UART_TxBusy Previous transfer on going. + * @retval kStatus_InvalidArgument Invalid argument. + */ +status_t UART_SendEDMA(UART_Type *base, uart_edma_handle_t *handle, uart_transfer_t *xfer); + +/*! + * @brief Receive data using eDMA. + * + * This function receives data using eDMA. This is a non-blocking function, which returns + * right away. When all data is received, the receive callback function is called. + * + * @param base UART peripheral base address. + * @param handle Pointer to uart_edma_handle_t structure. + * @param xfer UART eDMA transfer structure. See #uart_transfer_t. + * @retval kStatus_Success if succeed, others failed. + * @retval kStatus_UART_RxBusy Previous transfer on going. + * @retval kStatus_InvalidArgument Invalid argument. + */ +status_t UART_ReceiveEDMA(UART_Type *base, uart_edma_handle_t *handle, uart_transfer_t *xfer); + +/*! + * @brief Aborts the sent data using eDMA. + * + * This function aborts sent data using eDMA. + * + * @param base UART peripheral base address. + * @param handle Pointer to uart_edma_handle_t structure. + */ +void UART_TransferAbortSendEDMA(UART_Type *base, uart_edma_handle_t *handle); + +/*! + * @brief Aborts the receive data using eDMA. + * + * This function aborts receive data using eDMA. + * + * @param base UART peripheral base address. + * @param handle Pointer to uart_edma_handle_t structure. + */ +void UART_TransferAbortReceiveEDMA(UART_Type *base, uart_edma_handle_t *handle); + +/*! + * @brief Get the number of bytes that have been written to UART TX register. + * + * This function gets the number of bytes that have been written to UART TX + * register by DMA. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + * @param count Send bytes count. + * @retval kStatus_NoTransferInProgress No send in progress. + * @retval kStatus_InvalidArgument Parameter is invalid. + * @retval kStatus_Success Get successfully through the parameter \p count; + */ +status_t UART_TransferGetSendCountEDMA(UART_Type *base, uart_edma_handle_t *handle, uint32_t *count); + +/*! + * @brief Get the number of bytes that have been received. + * + * This function gets the number of bytes that have been received. + * + * @param base UART peripheral base address. + * @param handle UART handle pointer. + * @param count Receive bytes count. + * @retval kStatus_NoTransferInProgress No receive in progress. + * @retval kStatus_InvalidArgument Parameter is invalid. + * @retval kStatus_Success Get successfully through the parameter \p count; + */ +status_t UART_TransferGetReceiveCountEDMA(UART_Type *base, uart_edma_handle_t *handle, uint32_t *count); + +/*@}*/ + +#if defined(__cplusplus) +} +#endif + +/*! @}*/ + +#endif /* _FSL_UART_EDMA_H_ */ diff --git a/drivers/fsl_vref.c b/drivers/fsl_vref.c new file mode 100644 index 0000000..248132c --- /dev/null +++ b/drivers/fsl_vref.c @@ -0,0 +1,224 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_vref.h" + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/*! + * @brief Gets the instance from the base address + * + * @param base VREF peripheral base address + * + * @return The VREF instance + */ +static uint32_t VREF_GetInstance(VREF_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ + +/*! @brief Pointers to VREF bases for each instance. */ +static VREF_Type *const s_vrefBases[] = VREF_BASE_PTRS; + +/*! @brief Pointers to VREF clocks for each instance. */ +static const clock_ip_name_t s_vrefClocks[] = VREF_CLOCKS; + +/******************************************************************************* + * Code + ******************************************************************************/ + +static uint32_t VREF_GetInstance(VREF_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_VREF_COUNT; instance++) + { + if (s_vrefBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_VREF_COUNT); + + return instance; +} + +void VREF_Init(VREF_Type *base, const vref_config_t *config) +{ + assert(config != NULL); + + uint8_t reg = 0U; + + /* Ungate clock for VREF */ + CLOCK_EnableClock(s_vrefClocks[VREF_GetInstance(base)]); + +/* Configure VREF to a known state */ +#if defined(FSL_FEATURE_VREF_HAS_CHOP_OSC) && FSL_FEATURE_VREF_HAS_CHOP_OSC + /* Set chop oscillator bit */ + base->TRM |= VREF_TRM_CHOPEN_MASK; +#endif /* FSL_FEATURE_VREF_HAS_CHOP_OSC */ + /* Get current SC register */ +#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE + reg = base->VREFH_SC; +#else + reg = base->SC; +#endif/* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */ + /* Clear old buffer mode selection bits */ + reg &= ~VREF_SC_MODE_LV_MASK; + /* Set buffer Mode selection and Regulator enable bit */ + reg |= VREF_SC_MODE_LV(config->bufferMode) | VREF_SC_REGEN(1U); +#if defined(FSL_FEATURE_VREF_HAS_COMPENSATION) && FSL_FEATURE_VREF_HAS_COMPENSATION + /* Set second order curvature compensation enable bit */ + reg |= VREF_SC_ICOMPEN(1U); +#endif /* FSL_FEATURE_VREF_HAS_COMPENSATION */ + /* Enable VREF module */ + reg |= VREF_SC_VREFEN(1U); + /* Update bit-field from value to Status and Control register */ +#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE + base->VREFH_SC = reg; +#else + base->SC = reg; +#endif/* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */ +#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE + reg = base->VREFL_TRM; + /* Clear old select external voltage reference and VREFL (0.4 V) reference buffer enable bits */ + reg &= ~(VREF_VREFL_TRM_VREFL_EN_MASK | VREF_VREFL_TRM_VREFL_SEL_MASK); + /* Select external voltage reference and set VREFL (0.4 V) reference buffer enable */ + reg |= VREF_VREFL_TRM_VREFL_SEL(config->enableExternalVoltRef) | VREF_VREFL_TRM_VREFL_EN(config->enableLowRef); + base->VREFL_TRM = reg; +#endif /* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */ + +#if defined(FSL_FEATURE_VREF_HAS_TRM4) && FSL_FEATURE_VREF_HAS_TRM4 + reg = base->TRM4; + /* Clear old select internal voltage reference bit (2.1V) */ + reg &= ~VREF_TRM4_VREF2V1_EN_MASK; + /* Select internal voltage reference (2.1V) */ + reg |= VREF_TRM4_VREF2V1_EN(config->enable2V1VoltRef); + base->TRM4 = reg; +#endif /* FSL_FEATURE_VREF_HAS_TRM4 */ + + /* Wait until internal voltage stable */ +#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE + while ((base->VREFH_SC & VREF_SC_VREFST_MASK) == 0) +#else + while ((base->SC & VREF_SC_VREFST_MASK) == 0) +#endif/* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */ + { + } +} + +void VREF_Deinit(VREF_Type *base) +{ + /* Gate clock for VREF */ + CLOCK_DisableClock(s_vrefClocks[VREF_GetInstance(base)]); +} + +void VREF_GetDefaultConfig(vref_config_t *config) +{ + assert(config); + +/* Set High power buffer mode in */ +#if defined(FSL_FEATURE_VREF_MODE_LV_TYPE) && FSL_FEATURE_VREF_MODE_LV_TYPE + config->bufferMode = kVREF_ModeHighPowerBuffer; +#else + config->bufferMode = kVREF_ModeTightRegulationBuffer; +#endif /* FSL_FEATURE_VREF_MODE_LV_TYPE */ + +#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE + /* Select internal voltage reference */ + config->enableExternalVoltRef = false; + /* Set VREFL (0.4 V) reference buffer disable */ + config->enableLowRef = false; +#endif /* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */ + +#if defined(FSL_FEATURE_VREF_HAS_TRM4) && FSL_FEATURE_VREF_HAS_TRM4 + /* Disable internal voltage reference (2.1V) */ + config->enable2V1VoltRef = false; +#endif /* FSL_FEATURE_VREF_HAS_TRM4 */ +} + +void VREF_SetTrimVal(VREF_Type *base, uint8_t trimValue) +{ + uint8_t reg = 0U; + + /* Set TRIM bits value in voltage reference */ + reg = base->TRM; + reg = ((reg & ~VREF_TRM_TRIM_MASK) | VREF_TRM_TRIM(trimValue)); + base->TRM = reg; + /* Wait until internal voltage stable */ +#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE + while ((base->VREFH_SC & VREF_SC_VREFST_MASK) == 0) +#else + while ((base->SC & VREF_SC_VREFST_MASK) == 0) +#endif/* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */ + { + } +} + +#if defined(FSL_FEATURE_VREF_HAS_TRM4) && FSL_FEATURE_VREF_HAS_TRM4 +void VREF_SetTrim2V1Val(VREF_Type *base, uint8_t trimValue) +{ + uint8_t reg = 0U; + + /* Set TRIM bits value in voltage reference (2V1) */ + reg = base->TRM4; + reg = ((reg & ~VREF_TRM4_TRIM2V1_MASK) | VREF_TRM4_TRIM2V1(trimValue)); + base->TRM4 = reg; + /* Wait until internal voltage stable */ + while ((base->SC & VREF_SC_VREFST_MASK) == 0) + { + } +} +#endif /* FSL_FEATURE_VREF_HAS_TRM4 */ + +#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE +void VREF_SetLowReferenceTrimVal(VREF_Type *base, uint8_t trimValue) +{ + /* The values 111b and 110b are NOT valid/allowed */ + assert((trimValue != 0x7U) && (trimValue != 0x6U)); + + uint8_t reg = 0U; + + /* Set TRIM bits value in low voltage reference */ + reg = base->VREFL_TRM; + reg = ((reg & ~VREF_VREFL_TRM_VREFL_TRIM_MASK) | VREF_VREFL_TRM_VREFL_TRIM(trimValue)); + base->VREFL_TRM = reg; + /* Wait until internal voltage stable */ + + while ((base->VREFH_SC & VREF_SC_VREFST_MASK) == 0) + { + } +} +#endif /* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */ diff --git a/drivers/fsl_vref.h b/drivers/fsl_vref.h new file mode 100644 index 0000000..349c124 --- /dev/null +++ b/drivers/fsl_vref.h @@ -0,0 +1,256 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FSL_VREF_H_ +#define _FSL_VREF_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup vref + * @{ + */ + + +/****************************************************************************** + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +#define FSL_VREF_DRIVER_VERSION (MAKE_VERSION(2, 1, 0)) /*!< Version 2.1.0. */ +/*@}*/ + +/* Those macros below defined to support SoC family which have VREFL (0.4V) reference */ +#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE +#define VREF_SC_MODE_LV VREF_VREFH_SC_MODE_LV +#define VREF_SC_REGEN VREF_VREFH_SC_REGEN +#define VREF_SC_VREFEN VREF_VREFH_SC_VREFEN +#define VREF_SC_ICOMPEN VREF_VREFH_SC_ICOMPEN +#define VREF_SC_REGEN_MASK VREF_VREFH_SC_REGEN_MASK +#define VREF_SC_VREFST_MASK VREF_VREFH_SC_VREFST_MASK +#define VREF_SC_VREFEN_MASK VREF_VREFH_SC_VREFEN_MASK +#define VREF_SC_MODE_LV_MASK VREF_VREFH_SC_MODE_LV_MASK +#define VREF_SC_ICOMPEN_MASK VREF_VREFH_SC_ICOMPEN_MASK +#define TRM VREFH_TRM +#define VREF_TRM_TRIM VREF_VREFH_TRM_TRIM +#define VREF_TRM_CHOPEN_MASK VREF_VREFH_TRM_CHOPEN_MASK +#define VREF_TRM_TRIM_MASK VREF_VREFH_TRM_TRIM_MASK +#define VREF_TRM_CHOPEN_SHIFT VREF_VREFH_TRM_CHOPEN_SHIFT +#define VREF_TRM_TRIM_SHIFT VREF_VREFH_TRM_TRIM_SHIFT +#define VREF_SC_MODE_LV_SHIFT VREF_VREFH_SC_MODE_LV_SHIFT +#define VREF_SC_REGEN_SHIFT VREF_VREFH_SC_REGEN_SHIFT +#define VREF_SC_VREFST_SHIFT VREF_VREFH_SC_VREFST_SHIFT +#define VREF_SC_ICOMPEN_SHIFT VREF_VREFH_SC_ICOMPEN_SHIFT +#endif /* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */ + +/*! + * @brief VREF modes. + */ +typedef enum _vref_buffer_mode +{ + kVREF_ModeBandgapOnly = 0U, /*!< Bandgap on only, for stabilization and startup */ +#if defined(FSL_FEATURE_VREF_MODE_LV_TYPE) && FSL_FEATURE_VREF_MODE_LV_TYPE + kVREF_ModeHighPowerBuffer = 1U, /*!< High power buffer mode enabled */ + kVREF_ModeLowPowerBuffer = 2U /*!< Low power buffer mode enabled */ +#else + kVREF_ModeTightRegulationBuffer = 2U /*!< Tight regulation buffer enabled */ +#endif /* FSL_FEATURE_VREF_MODE_LV_TYPE */ +} vref_buffer_mode_t; + +/*! + * @brief The description structure for the VREF module. + */ +typedef struct _vref_config +{ + vref_buffer_mode_t bufferMode; /*!< Buffer mode selection */ +#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE + bool enableLowRef; /*!< Set VREFL (0.4 V) reference buffer enable or disable */ + bool enableExternalVoltRef; /*!< Select external voltage reference or not (internal) */ +#endif /* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */ +#if defined(FSL_FEATURE_VREF_HAS_TRM4) && FSL_FEATURE_VREF_HAS_TRM4 + bool enable2V1VoltRef; /*!< Enable Internal Voltage Reference (2.1V) */ +#endif /* FSL_FEATURE_VREF_HAS_TRM4 */ +} vref_config_t; + +/****************************************************************************** + * API + ******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /* __cplusplus */ + +/*! + * @name VREF functional operation + * @{ + */ + +/*! + * @brief Enables the clock gate and configures the VREF module according to the configuration structure. + * + * This function must be called before calling all the other VREF driver functions, + * read/write registers, and configurations with user-defined settings. + * The example below shows how to set up vref_config_t parameters and + * how to call the VREF_Init function by passing in these parameters: + * Example: + * @code + * vref_config_t vrefConfig; + * vrefConfig.bufferMode = kVREF_ModeHighPowerBuffer; + * vrefConfig.enableExternalVoltRef = false; + * vrefConfig.enableLowRef = false; + * VREF_Init(VREF, &vrefConfig); + * @endcode + * + * @param base VREF peripheral address. + * @param config Pointer to the configuration structure. + */ +void VREF_Init(VREF_Type *base, const vref_config_t *config); + +/*! + * @brief Stops and disables the clock for the VREF module. + * + * This function should be called to shut down the module. + * Example: + * @code + * vref_config_t vrefUserConfig; + * VREF_Init(VREF); + * VREF_GetDefaultConfig(&vrefUserConfig); + * ... + * VREF_Deinit(VREF); + * @endcode + * + * @param base VREF peripheral address. + */ +void VREF_Deinit(VREF_Type *base); + +/*! + * @brief Initializes the VREF configuration structure. + * + * This function initializes the VREF configuration structure to a default value. + * Example: + * @code + * vrefConfig->bufferMode = kVREF_ModeHighPowerBuffer; + * vrefConfig->enableExternalVoltRef = false; + * vrefConfig->enableLowRef = false; + * @endcode + * + * @param config Pointer to the initialization structure. + */ +void VREF_GetDefaultConfig(vref_config_t *config); + +/*! + * @brief Sets a TRIM value for reference voltage. + * + * This function sets a TRIM value for reference voltage. + * Note that the TRIM value maximum is 0x3F. + * + * @param base VREF peripheral address. + * @param trimValue Value of the trim register to set the output reference voltage (maximum 0x3F (6-bit)). + */ +void VREF_SetTrimVal(VREF_Type *base, uint8_t trimValue); + +/*! + * @brief Reads the value of the TRIM meaning output voltage. + * + * This function gets the TRIM value from the TRM register. + * + * @param base VREF peripheral address. + * @return Six-bit value of trim setting. + */ +static inline uint8_t VREF_GetTrimVal(VREF_Type *base) +{ + return (base->TRM & VREF_TRM_TRIM_MASK); +} + +#if defined(FSL_FEATURE_VREF_HAS_TRM4) && FSL_FEATURE_VREF_HAS_TRM4 +/*! + * @brief Sets a TRIM value for reference voltage (2V1). + * + * This function sets a TRIM value for reference voltage (2V1). + * Note that the TRIM value maximum is 0x3F. + * + * @param base VREF peripheral address. + * @param trimValue Value of the trim register to set the output reference voltage (maximum 0x3F (6-bit)). + */ +void VREF_SetTrim2V1Val(VREF_Type *base, uint8_t trimValue); + +/*! + * @brief Reads the value of the TRIM meaning output voltage (2V1). + * + * This function gets the TRIM value from the VREF_TRM4 register. + * + * @param base VREF peripheral address. + * @return Six-bit value of trim setting. + */ +static inline uint8_t VREF_GetTrim2V1Val(VREF_Type *base) +{ + return (base->TRM4 & VREF_TRM4_TRIM2V1_MASK); +} +#endif /* FSL_FEATURE_VREF_HAS_TRM4 */ + +#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE + +/*! + * @brief Sets the TRIM value for low voltage reference. + * + * This function sets the TRIM value for low reference voltage. + * NOTE: + * - The TRIM value maximum is 0x05U + * - The values 111b and 110b are not valid/allowed. + * + * @param base VREF peripheral address. + * @param trimValue Value of the trim register to set output low reference voltage (maximum 0x05U (3-bit)). + */ +void VREF_SetLowReferenceTrimVal(VREF_Type *base, uint8_t trimValue); + +/*! + * @brief Reads the value of the TRIM meaning output voltage. + * + * This function gets the TRIM value from the VREFL_TRM register. + * + * @param base VREF peripheral address. + * @return Three-bit value of the trim setting. + */ +static inline uint8_t VREF_GetLowReferenceTrimVal(VREF_Type *base) +{ + return (base->VREFL_TRM & VREF_VREFL_TRM_VREFL_TRIM_MASK); +} +#endif /* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */ + +/*@}*/ + +#if defined(__cplusplus) +} +#endif /* __cplusplus */ + +/*! @}*/ + +#endif /* _FSL_VREF_H_ */ diff --git a/drivers/fsl_wdog.c b/drivers/fsl_wdog.c new file mode 100644 index 0000000..489798c --- /dev/null +++ b/drivers/fsl_wdog.c @@ -0,0 +1,153 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "fsl_wdog.h" + +/******************************************************************************* + * Code + ******************************************************************************/ + +void WDOG_GetDefaultConfig(wdog_config_t *config) +{ + assert(config); + + config->enableWdog = true; + config->clockSource = kWDOG_LpoClockSource; + config->prescaler = kWDOG_ClockPrescalerDivide1; +#if defined(FSL_FEATURE_WDOG_HAS_WAITEN) && FSL_FEATURE_WDOG_HAS_WAITEN + config->workMode.enableWait = true; +#endif /* FSL_FEATURE_WDOG_HAS_WAITEN */ + config->workMode.enableStop = false; + config->workMode.enableDebug = false; + config->enableUpdate = true; + config->enableInterrupt = false; + config->enableWindowMode = false; + config->windowValue = 0U; + config->timeoutValue = 0xFFFFU; +} + +void WDOG_Init(WDOG_Type *base, const wdog_config_t *config) +{ + assert(config); + + uint32_t value = 0U; + uint32_t primaskValue = 0U; + + value = WDOG_STCTRLH_WDOGEN(config->enableWdog) | WDOG_STCTRLH_CLKSRC(config->clockSource) | + WDOG_STCTRLH_IRQRSTEN(config->enableInterrupt) | WDOG_STCTRLH_WINEN(config->enableWindowMode) | + WDOG_STCTRLH_ALLOWUPDATE(config->enableUpdate) | WDOG_STCTRLH_DBGEN(config->workMode.enableDebug) | + WDOG_STCTRLH_STOPEN(config->workMode.enableStop) | +#if defined(FSL_FEATURE_WDOG_HAS_WAITEN) && FSL_FEATURE_WDOG_HAS_WAITEN + WDOG_STCTRLH_WAITEN(config->workMode.enableWait) | +#endif /* FSL_FEATURE_WDOG_HAS_WAITEN */ + WDOG_STCTRLH_DISTESTWDOG(1U); + + /* Disable the global interrupts. Otherwise, an interrupt could effectively invalidate the unlock sequence + * and the WCT may expire. After the configuration finishes, re-enable the global interrupts. */ + primaskValue = DisableGlobalIRQ(); + WDOG_Unlock(base); + /* Wait one bus clock cycle */ + base->RSTCNT = 0U; + /* Set configruation */ + base->PRESC = WDOG_PRESC_PRESCVAL(config->prescaler); + base->WINH = (uint16_t)((config->windowValue >> 16U) & 0xFFFFU); + base->WINL = (uint16_t)((config->windowValue) & 0xFFFFU); + base->TOVALH = (uint16_t)((config->timeoutValue >> 16U) & 0xFFFFU); + base->TOVALL = (uint16_t)((config->timeoutValue) & 0xFFFFU); + base->STCTRLH = value; + EnableGlobalIRQ(primaskValue); +} + +void WDOG_Deinit(WDOG_Type *base) +{ + uint32_t primaskValue = 0U; + + /* Disable the global interrupts */ + primaskValue = DisableGlobalIRQ(); + WDOG_Unlock(base); + /* Wait one bus clock cycle */ + base->RSTCNT = 0U; + WDOG_Disable(base); + EnableGlobalIRQ(primaskValue); + WDOG_ClearResetCount(base); +} + +void WDOG_SetTestModeConfig(WDOG_Type *base, wdog_test_config_t *config) +{ + assert(config); + + uint32_t value = 0U; + uint32_t primaskValue = 0U; + + value = WDOG_STCTRLH_DISTESTWDOG(0U) | WDOG_STCTRLH_TESTWDOG(1U) | WDOG_STCTRLH_TESTSEL(config->testMode) | + WDOG_STCTRLH_BYTESEL(config->testedByte) | WDOG_STCTRLH_IRQRSTEN(0U) | WDOG_STCTRLH_WDOGEN(1U) | + WDOG_STCTRLH_ALLOWUPDATE(1U); + + /* Disable the global interrupts. Otherwise, an interrupt could effectively invalidate the unlock sequence + * and the WCT may expire. After the configuration finishes, re-enable the global interrupts. */ + primaskValue = DisableGlobalIRQ(); + WDOG_Unlock(base); + /* Wait one bus clock cycle */ + base->RSTCNT = 0U; + /* Set configruation */ + base->TOVALH = (uint16_t)((config->timeoutValue >> 16U) & 0xFFFFU); + base->TOVALL = (uint16_t)((config->timeoutValue) & 0xFFFFU); + base->STCTRLH = value; + EnableGlobalIRQ(primaskValue); +} + +uint32_t WDOG_GetStatusFlags(WDOG_Type *base) +{ + uint32_t status_flag = 0U; + + status_flag |= (base->STCTRLH & WDOG_STCTRLH_WDOGEN_MASK); + status_flag |= (base->STCTRLL & WDOG_STCTRLL_INTFLG_MASK); + + return status_flag; +} + +void WDOG_ClearStatusFlags(WDOG_Type *base, uint32_t mask) +{ + if (mask & kWDOG_TimeoutFlag) + { + base->STCTRLL |= WDOG_STCTRLL_INTFLG_MASK; + } +} + +void WDOG_Refresh(WDOG_Type *base) +{ + uint32_t primaskValue = 0U; + + /* Disable the global interrupt to protect refresh sequence */ + primaskValue = DisableGlobalIRQ(); + base->REFRESH = WDOG_FIRST_WORD_OF_REFRESH; + base->REFRESH = WDOG_SECOND_WORD_OF_REFRESH; + EnableGlobalIRQ(primaskValue); +} diff --git a/drivers/fsl_wdog.h b/drivers/fsl_wdog.h new file mode 100644 index 0000000..f497406 --- /dev/null +++ b/drivers/fsl_wdog.h @@ -0,0 +1,433 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_WDOG_H_ +#define _FSL_WDOG_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup wdog + * @{ + */ + + +/******************************************************************************* + * Definitions + *******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief Defines WDOG driver version 2.0.0. */ +#define FSL_WDOG_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) +/*@}*/ + +/*! @name Unlock sequence */ +/*@{*/ +#define WDOG_FIRST_WORD_OF_UNLOCK (0xC520U) /*!< First word of unlock sequence */ +#define WDOG_SECOND_WORD_OF_UNLOCK (0xD928U) /*!< Second word of unlock sequence */ +/*@}*/ + +/*! @name Refresh sequence */ +/*@{*/ +#define WDOG_FIRST_WORD_OF_REFRESH (0xA602U) /*!< First word of refresh sequence */ +#define WDOG_SECOND_WORD_OF_REFRESH (0xB480U) /*!< Second word of refresh sequence */ +/*@}*/ + +/*! @brief Describes WDOG clock source. */ +typedef enum _wdog_clock_source +{ + kWDOG_LpoClockSource = 0U, /*!< WDOG clock sourced from LPO*/ + kWDOG_AlternateClockSource = 1U, /*!< WDOG clock sourced from alternate clock source*/ +} wdog_clock_source_t; + +/*! @brief Defines WDOG work mode. */ +typedef struct _wdog_work_mode +{ +#if defined(FSL_FEATURE_WDOG_HAS_WAITEN) && FSL_FEATURE_WDOG_HAS_WAITEN + bool enableWait; /*!< Enables or disables WDOG in wait mode */ +#endif /* FSL_FEATURE_WDOG_HAS_WAITEN */ + bool enableStop; /*!< Enables or disables WDOG in stop mode */ + bool enableDebug; /*!< Enables or disables WDOG in debug mode */ +} wdog_work_mode_t; + +/*! @brief Describes the selection of the clock prescaler. */ +typedef enum _wdog_clock_prescaler +{ + kWDOG_ClockPrescalerDivide1 = 0x0U, /*!< Divided by 1 */ + kWDOG_ClockPrescalerDivide2 = 0x1U, /*!< Divided by 2 */ + kWDOG_ClockPrescalerDivide3 = 0x2U, /*!< Divided by 3 */ + kWDOG_ClockPrescalerDivide4 = 0x3U, /*!< Divided by 4 */ + kWDOG_ClockPrescalerDivide5 = 0x4U, /*!< Divided by 5 */ + kWDOG_ClockPrescalerDivide6 = 0x5U, /*!< Divided by 6 */ + kWDOG_ClockPrescalerDivide7 = 0x6U, /*!< Divided by 7 */ + kWDOG_ClockPrescalerDivide8 = 0x7U, /*!< Divided by 8 */ +} wdog_clock_prescaler_t; + +/*! @brief Describes WDOG configuration structure. */ +typedef struct _wdog_config +{ + bool enableWdog; /*!< Enables or disables WDOG */ + wdog_clock_source_t clockSource; /*!< Clock source select */ + wdog_clock_prescaler_t prescaler; /*!< Clock prescaler value */ + wdog_work_mode_t workMode; /*!< Configures WDOG work mode in debug stop and wait mode */ + bool enableUpdate; /*!< Update write-once register enable */ + bool enableInterrupt; /*!< Enables or disables WDOG interrupt */ + bool enableWindowMode; /*!< Enables or disables WDOG window mode */ + uint32_t windowValue; /*!< Window value */ + uint32_t timeoutValue; /*!< Timeout value */ +} wdog_config_t; + +/*! @brief Describes WDOG test mode. */ +typedef enum _wdog_test_mode +{ + kWDOG_QuickTest = 0U, /*!< Selects quick test */ + kWDOG_ByteTest = 1U, /*!< Selects byte test */ +} wdog_test_mode_t; + +/*! @brief Describes WDOG tested byte selection in byte test mode. */ +typedef enum _wdog_tested_byte +{ + kWDOG_TestByte0 = 0U, /*!< Byte 0 selected in byte test mode */ + kWDOG_TestByte1 = 1U, /*!< Byte 1 selected in byte test mode */ + kWDOG_TestByte2 = 2U, /*!< Byte 2 selected in byte test mode */ + kWDOG_TestByte3 = 3U, /*!< Byte 3 selected in byte test mode */ +} wdog_tested_byte_t; + +/*! @brief Describes WDOG test mode configuration structure. */ +typedef struct _wdog_test_config +{ + wdog_test_mode_t testMode; /*!< Selects test mode */ + wdog_tested_byte_t testedByte; /*!< Selects tested byte in byte test mode */ + uint32_t timeoutValue; /*!< Timeout value */ +} wdog_test_config_t; + +/*! + * @brief WDOG interrupt configuration structure, default settings all disabled. + * + * This structure contains the settings for all of the WDOG interrupt configurations. + */ +enum _wdog_interrupt_enable_t +{ + kWDOG_InterruptEnable = WDOG_STCTRLH_IRQRSTEN_MASK, /*!< WDOG timeout generates an interrupt before reset*/ +}; + +/*! + * @brief WDOG status flags. + * + * This structure contains the WDOG status flags for use in the WDOG functions. + */ +enum _wdog_status_flags_t +{ + kWDOG_RunningFlag = WDOG_STCTRLH_WDOGEN_MASK, /*!< Running flag, set when WDOG is enabled*/ + kWDOG_TimeoutFlag = WDOG_STCTRLL_INTFLG_MASK, /*!< Interrupt flag, set when an exception occurs*/ +}; + +/******************************************************************************* + * API + *******************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif /* __cplusplus */ + +/*! + * @name WDOG Initialization and De-initialization + * @{ + */ + +/*! + * @brief Initializes WDOG configure sturcture. + * + * This function initializes the WDOG configuration structure to default value. The default + * values are: + * @code + * wdogConfig->enableWdog = true; + * wdogConfig->clockSource = kWDOG_LpoClockSource; + * wdogConfig->prescaler = kWDOG_ClockPrescalerDivide1; + * wdogConfig->workMode.enableWait = true; + * wdogConfig->workMode.enableStop = false; + * wdogConfig->workMode.enableDebug = false; + * wdogConfig->enableUpdate = true; + * wdogConfig->enableInterrupt = false; + * wdogConfig->enableWindowMode = false; + * wdogConfig->windowValue = 0; + * wdogConfig->timeoutValue = 0xFFFFU; + * @endcode + * + * @param config Pointer to WDOG config structure. + * @see wdog_config_t + */ +void WDOG_GetDefaultConfig(wdog_config_t *config); + +/*! + * @brief Initializes the WDOG. + * + * This function initializes the WDOG. When called, the WDOG runs according to the configuration. + * If user wants to reconfigure WDOG without forcing a reset first, enableUpdate must be set to true + * in configuration. + * + * Example: + * @code + * wdog_config_t config; + * WDOG_GetDefaultConfig(&config); + * config.timeoutValue = 0x7ffU; + * config.enableUpdate = true; + * WDOG_Init(wdog_base,&config); + * @endcode + * + * @param base WDOG peripheral base address + * @param config The configuration of WDOG + */ +void WDOG_Init(WDOG_Type *base, const wdog_config_t *config); + +/*! + * @brief Shuts down the WDOG. + * + * This function shuts down the WDOG. + * Make sure that the WDOG_STCTRLH.ALLOWUPDATE is 1 which means that the register update is enabled. + */ +void WDOG_Deinit(WDOG_Type *base); + +/*! + * @brief Configures WDOG functional test. + * + * This function is used to configure the WDOG functional test. When called, the WDOG goes into test mode + * and runs according to the configuration. + * Make sure that the WDOG_STCTRLH.ALLOWUPDATE is 1 which means that the register update is enabled. + * + * Example: + * @code + * wdog_test_config_t test_config; + * test_config.testMode = kWDOG_QuickTest; + * test_config.timeoutValue = 0xfffffu; + * WDOG_SetTestModeConfig(wdog_base, &test_config); + * @endcode + * @param base WDOG peripheral base address + * @param config The functional test configuration of WDOG + */ +void WDOG_SetTestModeConfig(WDOG_Type *base, wdog_test_config_t *config); + +/* @} */ + +/*! + * @name WDOG Functional Operation + * @{ + */ + +/*! + * @brief Enables the WDOG module. + * + * This function write value into WDOG_STCTRLH register to enable the WDOG, it is a write-once register, + * make sure that the WCT window is still open and this register has not been written in this WCT + * while this function is called. + * + * @param base WDOG peripheral base address + */ +static inline void WDOG_Enable(WDOG_Type *base) +{ + base->STCTRLH |= WDOG_STCTRLH_WDOGEN_MASK; +} + +/*! + * @brief Disables the WDOG module. + * + * This function write value into WDOG_STCTRLH register to disable the WDOG, it is a write-once register, + * make sure that the WCT window is still open and this register has not been written in this WCT + * while this function is called. + * + * @param base WDOG peripheral base address + */ +static inline void WDOG_Disable(WDOG_Type *base) +{ + base->STCTRLH &= ~WDOG_STCTRLH_WDOGEN_MASK; +} + +/*! + * @brief Enable WDOG interrupt. + * + * This function write value into WDOG_STCTRLH register to enable WDOG interrupt, it is a write-once register, + * make sure that the WCT window is still open and this register has not been written in this WCT + * while this function is called. + * + * @param base WDOG peripheral base address + * @param mask The interrupts to enable + * The parameter can be combination of the following source if defined: + * @arg kWDOG_InterruptEnable + */ +static inline void WDOG_EnableInterrupts(WDOG_Type *base, uint32_t mask) +{ + base->STCTRLH |= mask; +} + +/*! + * @brief Disable WDOG interrupt. + * + * This function write value into WDOG_STCTRLH register to disable WDOG interrupt, it is a write-once register, + * make sure that the WCT window is still open and this register has not been written in this WCT + * while this function is called. + * + * @param base WDOG peripheral base address + * @param mask The interrupts to disable + * The parameter can be combination of the following source if defined: + * @arg kWDOG_InterruptEnable + */ +static inline void WDOG_DisableInterrupts(WDOG_Type *base, uint32_t mask) +{ + base->STCTRLH &= ~mask; +} + +/*! + * @brief Gets WDOG all status flags. + * + * This function gets all status flags. + * + * Example for getting Running Flag: + * @code + * uint32_t status; + * status = WDOG_GetStatusFlags(wdog_base) & kWDOG_RunningFlag; + * @endcode + * @param base WDOG peripheral base address + * @return State of the status flag: asserted (true) or not-asserted (false).@see _wdog_status_flags_t + * - true: a related status flag has been set. + * - false: a related status flag is not set. + */ +uint32_t WDOG_GetStatusFlags(WDOG_Type *base); + +/*! + * @brief Clear WDOG flag. + * + * This function clears WDOG status flag. + * + * Example for clearing timeout(interrupt) flag: + * @code + * WDOG_ClearStatusFlags(wdog_base,kWDOG_TimeoutFlag); + * @endcode + * @param base WDOG peripheral base address + * @param mask The status flags to clear. + * The parameter could be any combination of the following values: + * kWDOG_TimeoutFlag + */ +void WDOG_ClearStatusFlags(WDOG_Type *base, uint32_t mask); + +/*! + * @brief Set the WDOG timeout value. + * + * This function sets the timeout value. + * It should be ensured that the time-out value for the WDOG is always greater than + * 2xWCT time + 20 bus clock cycles. + * This function write value into WDOG_TOVALH and WDOG_TOVALL registers which are wirte-once. + * Make sure the WCT window is still open and these two registers have not been written in this WCT + * while this function is called. + * + * @param base WDOG peripheral base address + * @param timeoutCount WDOG timeout value, count of WDOG clock tick. + */ +static inline void WDOG_SetTimeoutValue(WDOG_Type *base, uint32_t timeoutCount) +{ + base->TOVALH = (uint16_t)((timeoutCount >> 16U) & 0xFFFFU); + base->TOVALL = (uint16_t)((timeoutCount)&0xFFFFU); +} + +/*! + * @brief Sets the WDOG window value. + * + * This function sets the WDOG window value. + * This function write value into WDOG_WINH and WDOG_WINL registers which are wirte-once. + * Make sure the WCT window is still open and these two registers have not been written in this WCT + * while this function is called. + * + * @param base WDOG peripheral base address + * @param windowValue WDOG window value. + */ +static inline void WDOG_SetWindowValue(WDOG_Type *base, uint32_t windowValue) +{ + base->WINH = (uint16_t)((windowValue >> 16U) & 0xFFFFU); + base->WINL = (uint16_t)((windowValue)&0xFFFFU); +} + +/*! + * @brief Unlocks the WDOG register written. + * + * This function unlocks the WDOG register written. + * Before starting the unlock sequence and following congfiguration, disable the global interrupts. + * Otherwise, an interrupt could effectively invalidate the unlock sequence and the WCT may expire, + * After the configuration finishes, re-enable the global interrupts. + * + * @param base WDOG peripheral base address + */ +static inline void WDOG_Unlock(WDOG_Type *base) +{ + base->UNLOCK = WDOG_FIRST_WORD_OF_UNLOCK; + base->UNLOCK = WDOG_SECOND_WORD_OF_UNLOCK; +} + +/*! + * @brief Refreshes the WDOG timer. + * + * This function feeds the WDOG. + * This function should be called before WDOG timer is in timeout. Otherwise, a reset is asserted. + * + * @param base WDOG peripheral base address + */ +void WDOG_Refresh(WDOG_Type *base); + +/*! + * @brief Gets the WDOG reset count. + * + * This function gets the WDOG reset count value. + * + * @param base WDOG peripheral base address + * @return WDOG reset count value + */ +static inline uint16_t WDOG_GetResetCount(WDOG_Type *base) +{ + return base->RSTCNT; +} +/*! + * @brief Clears the WDOG reset count. + * + * This function clears the WDOG reset count value. + * + * @param base WDOG peripheral base address + */ +static inline void WDOG_ClearResetCount(WDOG_Type *base) +{ + base->RSTCNT |= UINT16_MAX; +} + +/*@}*/ + +#if defined(__cplusplus) +} +#endif /* __cplusplus */ + +/*! @}*/ + +#endif /* _FSL_WDOG_H_ */ |