diff options
Diffstat (limited to 'drivers/fsl_flexcan.c')
| -rw-r--r-- | drivers/fsl_flexcan.c | 98 |
1 files changed, 80 insertions, 18 deletions
diff --git a/drivers/fsl_flexcan.c b/drivers/fsl_flexcan.c index 395def5..f58f3f5 100644 --- a/drivers/fsl_flexcan.c +++ b/drivers/fsl_flexcan.c @@ -1,6 +1,6 @@ /* * Copyright (c) 2015, Freescale Semiconductor, Inc. - * All rights reserved. + * Copyright 2016-2017 NXP * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: @@ -12,7 +12,7 @@ * 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 + * o Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * @@ -165,8 +165,6 @@ static void FLEXCAN_SetBaudRate(CAN_Type *base, uint32_t sourceClock_Hz, uint32_ /******************************************************************************* * 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; @@ -179,8 +177,17 @@ 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 handle. */ +static flexcan_handle_t *s_flexcanHandle[ARRAY_SIZE(s_flexcanBases)]; + +#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) /* Array of FlexCAN clock name. */ static const clock_ip_name_t s_flexcanClock[] = FLEXCAN_CLOCKS; +#if defined(FLEXCAN_PERIPH_CLOCKS) +/* Array of FlexCAN serial clock name. */ +static const clock_ip_name_t s_flexcanPeriphClock[] = FLEXCAN_PERIPH_CLOCKS; +#endif /* FLEXCAN_PERIPH_CLOCKS */ +#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ /* FlexCAN ISR for transactional APIs. */ static flexcan_isr_t s_flexcanIsr; @@ -194,7 +201,7 @@ 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++) + for (instance = 0; instance < ARRAY_SIZE(s_flexcanBases); instance++) { if (s_flexcanBases[instance] == base) { @@ -202,7 +209,7 @@ uint32_t FLEXCAN_GetInstance(CAN_Type *base) } } - assert(instance < FSL_FEATURE_SOC_FLEXCAN_COUNT); + assert(instance < ARRAY_SIZE(s_flexcanBases)); return instance; } @@ -314,9 +321,13 @@ static bool FLEXCAN_IsMbIntEnabled(CAN_Type *base, uint8_t mbIdx) else { if (base->IMASK2 & ((uint32_t)(1 << (mbIdx - 32)))) + { return true; + } else + { return false; + } } #endif } @@ -352,7 +363,7 @@ static void FLEXCAN_Reset(CAN_Type *base) 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); + 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. */ @@ -420,14 +431,25 @@ static void FLEXCAN_SetBaudRate(CAN_Type *base, uint32_t sourceClock_Hz, uint32_ void FLEXCAN_Init(CAN_Type *base, const flexcan_config_t *config, uint32_t sourceClock_Hz) { uint32_t mcrTemp; +#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) + uint32_t instance; +#endif /* Assertion. */ assert(config); assert((config->maxMbNum > 0) && (config->maxMbNum <= FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(base))); +#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) + instance = FLEXCAN_GetInstance(base); /* Enable FlexCAN clock. */ - CLOCK_EnableClock(s_flexcanClock[FLEXCAN_GetInstance(base)]); - + CLOCK_EnableClock(s_flexcanClock[instance]); +#if defined(FLEXCAN_PERIPH_CLOCKS) + /* Enable FlexCAN serial clock. */ + CLOCK_EnableClock(s_flexcanPeriphClock[instance]); +#endif /* FLEXCAN_PERIPH_CLOCKS */ +#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ + +#if (!defined(FSL_FEATURE_FLEXCAN_SUPPORT_ENGINE_CLK_SEL_REMOVE)) || !FSL_FEATURE_FLEXCAN_SUPPORT_ENGINE_CLK_SEL_REMOVE /* Disable FlexCAN Module. */ FLEXCAN_Enable(base, false); @@ -436,6 +458,7 @@ void FLEXCAN_Init(CAN_Type *base, const flexcan_config_t *config, uint32_t sourc */ base->CTRL1 = (kFLEXCAN_ClkSrcOsc == config->clkSrc) ? base->CTRL1 & ~CAN_CTRL1_CLKSRC_MASK : base->CTRL1 | CAN_CTRL1_CLKSRC_MASK; +#endif /* FSL_FEATURE_FLEXCAN_SUPPORT_ENGINE_CLK_SEL_REMOVE */ /* Enable FlexCAN Module for configuartion. */ FLEXCAN_Enable(base, true); @@ -472,14 +495,24 @@ void FLEXCAN_Init(CAN_Type *base, const flexcan_config_t *config, uint32_t sourc void FLEXCAN_Deinit(CAN_Type *base) { +#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) + uint32_t instance; +#endif /* Reset all Register Contents. */ FLEXCAN_Reset(base); /* Disable FlexCAN module. */ FLEXCAN_Enable(base, false); +#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) + instance = FLEXCAN_GetInstance(base); +#if defined(FLEXCAN_PERIPH_CLOCKS) + /* Disable FlexCAN serial clock. */ + CLOCK_DisableClock(s_flexcanPeriphClock[instance]); +#endif /* FLEXCAN_PERIPH_CLOCKS */ /* Disable FlexCAN clock. */ - CLOCK_DisableClock(s_flexcanClock[FLEXCAN_GetInstance(base)]); + CLOCK_DisableClock(s_flexcanClock[instance]); +#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ } void FLEXCAN_GetDefaultConfig(flexcan_config_t *config) @@ -488,7 +521,9 @@ void FLEXCAN_GetDefaultConfig(flexcan_config_t *config) assert(config); /* Initialize FlexCAN Module config struct with default value. */ +#if (!defined(FSL_FEATURE_FLEXCAN_SUPPORT_ENGINE_CLK_SEL_REMOVE)) || !FSL_FEATURE_FLEXCAN_SUPPORT_ENGINE_CLK_SEL_REMOVE config->clkSrc = kFLEXCAN_ClkSrcOsc; +#endif /* FSL_FEATURE_FLEXCAN_SUPPORT_ENGINE_CLK_SEL_REMOVE */ config->baudRate = 125000U; config->maxMbNum = 16; config->enableLoopBack = false; @@ -1293,13 +1328,13 @@ void FLEXCAN_TransferHandleIRQ(CAN_Type *base, flexcan_handle_t *handle) (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)))); + 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) +#if defined(CAN0) void CAN0_DriverIRQHandler(void) { assert(s_flexcanHandle[0]); @@ -1308,7 +1343,7 @@ void CAN0_DriverIRQHandler(void) } #endif -#if (FSL_FEATURE_SOC_FLEXCAN_COUNT > 1) +#if defined(CAN1) void CAN1_DriverIRQHandler(void) { assert(s_flexcanHandle[1]); @@ -1317,7 +1352,7 @@ void CAN1_DriverIRQHandler(void) } #endif -#if (FSL_FEATURE_SOC_FLEXCAN_COUNT > 2) +#if defined(CAN2) void CAN2_DriverIRQHandler(void) { assert(s_flexcanHandle[2]); @@ -1326,7 +1361,7 @@ void CAN2_DriverIRQHandler(void) } #endif -#if (FSL_FEATURE_SOC_FLEXCAN_COUNT > 3) +#if defined(CAN3) void CAN3_DriverIRQHandler(void) { assert(s_flexcanHandle[3]); @@ -1335,7 +1370,7 @@ void CAN3_DriverIRQHandler(void) } #endif -#if (FSL_FEATURE_SOC_FLEXCAN_COUNT > 4) +#if defined(CAN4) void CAN4_DriverIRQHandler(void) { assert(s_flexcanHandle[4]); @@ -1343,3 +1378,30 @@ void CAN4_DriverIRQHandler(void) s_flexcanIsr(CAN4, s_flexcanHandle[4]); } #endif + +#if defined(DMA_CAN0) +void DMA_FLEXCAN0_DriverIRQHandler(void) +{ + assert(s_flexcanHandle[FLEXCAN_GetInstance(DMA_CAN0)]); + + s_flexcanIsr(DMA_CAN0, s_flexcanHandle[FLEXCAN_GetInstance(DMA_CAN0)]); +} +#endif + +#if defined(DMA_CAN1) +void DMA_FLEXCAN1_DriverIRQHandler(void) +{ + assert(s_flexcanHandle[FLEXCAN_GetInstance(DMA_CAN1)]); + + s_flexcanIsr(DMA_CAN0, s_flexcanHandle[FLEXCAN_GetInstance(DMA_CAN1)]); +} +#endif + +#if defined(DMA_CAN2) +void DMA_FLEXCAN2_DriverIRQHandler(void) +{ + assert(s_flexcanHandle[FLEXCAN_GetInstance(DMA_CAN2)]); + + s_flexcanIsr(DMA_CAN2, s_flexcanHandle[FLEXCAN_GetInstance(DMA_CAN2)]); +} +#endif |