/* * 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_ */