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rt-thread-official/bsp/imxrt/libraries/MIMXRT1020/MIMXRT1021/drivers/fsl_usdhc.c

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/*
* Copyright (c) 2016, Freescale Semiconductor, Inc.
* Copyright 2016-2021 NXP
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include "fsl_usdhc.h"
#if defined(FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) && FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL
#include "fsl_cache.h"
#endif /* FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL */
#if defined(FSL_FEATURE_MEMORY_HAS_ADDRESS_OFFSET) && FSL_FEATURE_MEMORY_HAS_ADDRESS_OFFSET
#include "fsl_memory.h"
#endif
/*******************************************************************************
* Definitions
******************************************************************************/
/* Component ID definition, used by tools. */
#ifndef FSL_COMPONENT_ID
#define FSL_COMPONENT_ID "platform.drivers.usdhc"
#endif
/*! @brief Clock setting */
/* Max SD clock divisor from base clock */
#define USDHC_MAX_DVS ((USDHC_SYS_CTRL_DVS_MASK >> USDHC_SYS_CTRL_DVS_SHIFT) + 1U)
#define USDHC_MAX_CLKFS ((USDHC_SYS_CTRL_SDCLKFS_MASK >> USDHC_SYS_CTRL_SDCLKFS_SHIFT) + 1U)
#define USDHC_PREV_DVS(x) ((x) -= 1U)
#define USDHC_PREV_CLKFS(x, y) ((x) >>= (y))
/*! @brief USDHC ADMA table address align size */
#define USDHC_ADMA_TABLE_ADDRESS_ALIGN (4U)
/* Typedef for interrupt handler. */
typedef void (*usdhc_isr_t)(USDHC_Type *base, usdhc_handle_t *handle);
/*! @brief check flag avalibility */
#define IS_USDHC_FLAG_SET(reg, flag) (((reg) & ((uint32_t)flag)) != 0UL)
/*! @brief usdhc transfer flags */
enum _usdhc_transfer_flags
{
kUSDHC_CommandOnly = 1U, /*!< transfer command only */
kUSDHC_CommandAndTxData = 2U, /*!< transfer command and transmit data */
kUSDHC_CommandAndRxData = 4U, /*!< transfer command and receive data */
kUSDHC_DataWithAutoCmd12 = 8U, /*!< transfer data with auto cmd12 enabled */
kUSDHC_DataWithAutoCmd23 = 16U, /*!< transfer data with auto cmd23 enabled */
kUSDHC_BootData = 32U, /*!< transfer boot data */
kUSDHC_BootDataContinuous = 64U, /*!< transfer boot data continuous */
};
#if defined(FSL_FEATURE_MEMORY_HAS_ADDRESS_OFFSET) && FSL_FEATURE_MEMORY_HAS_ADDRESS_OFFSET
#define USDHC_ADDR_CPU_2_DMA(addr) (MEMORY_ConvertMemoryMapAddress((addr), kMEMORY_Local2DMA))
#else
#define USDHC_ADDR_CPU_2_DMA(addr) (addr)
#endif
/*******************************************************************************
* Prototypes
******************************************************************************/
/*!
* @brief Get the instance.
*
* @param base USDHC peripheral base address.
* @return Instance number.
*/
static uint32_t USDHC_GetInstance(USDHC_Type *base);
/*!
* @brief Start transfer according to current transfer state
*
* @param base USDHC peripheral base address.
* @param transferFlags transfer flags, @ref _usdhc_transfer_flags.
* @param blockSize block size.
* @param blockCount block count.
*/
static status_t USDHC_SetTransferConfig(USDHC_Type *base,
uint32_t transferFlags,
size_t blockSize,
uint32_t blockCount);
/*!
* @brief Receive command response
*
* @param base USDHC peripheral base address.
* @param command Command to be sent.
*/
static status_t USDHC_ReceiveCommandResponse(USDHC_Type *base, usdhc_command_t *command);
/*!
* @brief Read DATAPORT when buffer enable bit is set.
*
* @param base USDHC 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 USDHC_ReadDataPort(USDHC_Type *base, usdhc_data_t *data, uint32_t transferredWords);
/*!
* @brief Read data by using DATAPORT polling way.
*
* @param base USDHC peripheral base address.
* @param data Data to be read.
* @retval kStatus_Fail Read DATAPORT failed.
* @retval kStatus_Success Operate successfully.
*/
static status_t USDHC_ReadByDataPortBlocking(USDHC_Type *base, usdhc_data_t *data);
/*!
* @brief Write DATAPORT when buffer enable bit is set.
*
* @param base USDHC 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 USDHC_WriteDataPort(USDHC_Type *base, usdhc_data_t *data, uint32_t transferredWords);
/*!
* @brief Write data by using DATAPORT polling way.
*
* @param base USDHC peripheral base address.
* @param data Data to be transferred.
* @retval kStatus_Fail Write DATAPORT failed.
* @retval kStatus_Success Operate successfully.
*/
static status_t USDHC_WriteByDataPortBlocking(USDHC_Type *base, usdhc_data_t *data);
/*!
* @brief Transfer data by polling way.
*
* @param base USDHC peripheral base address.
* @param data Data to be transferred.
* @param use DMA flag.
* @retval kStatus_Fail Transfer data failed.
* @retval kStatus_InvalidArgument Argument is invalid.
* @retval kStatus_Success Operate successfully.
*/
static status_t USDHC_TransferDataBlocking(USDHC_Type *base, usdhc_data_t *data, bool enDMA);
/*!
* @brief wait command done
*
* @param base USDHC peripheral base address.
* @param command configuration
* @param pollingCmdDone polling command done flag
*/
static status_t USDHC_WaitCommandDone(USDHC_Type *base, usdhc_command_t *command, bool pollingCmdDone);
/*!
* @brief Handle card detect interrupt.
*
* @param base USDHC peripheral base address.
* @param handle USDHC handle.
* @param interruptFlags Card detect related interrupt flags.
*/
static void USDHC_TransferHandleCardDetect(USDHC_Type *base, usdhc_handle_t *handle, uint32_t interruptFlags);
/*!
* @brief Handle command interrupt.
*
* @param base USDHC peripheral base address.
* @param handle USDHC handle.
* @param interruptFlags Command related interrupt flags.
*/
static void USDHC_TransferHandleCommand(USDHC_Type *base, usdhc_handle_t *handle, uint32_t interruptFlags);
/*!
* @brief Handle data interrupt.
*
* @param base USDHC peripheral base address.
* @param handle USDHC handle.
* @param interruptFlags Data related interrupt flags.
*/
static void USDHC_TransferHandleData(USDHC_Type *base, usdhc_handle_t *handle, uint32_t interruptFlags);
/*!
* @brief Handle SDIO card interrupt signal.
*
* @param base USDHC peripheral base address.
* @param handle USDHC handle.
*/
static void USDHC_TransferHandleSdioInterrupt(USDHC_Type *base, usdhc_handle_t *handle);
/*!
* @brief Handle SDIO block gap event.
*
* @param base USDHC peripheral base address.
* @param handle USDHC handle.
*/
static void USDHC_TransferHandleBlockGap(USDHC_Type *base, usdhc_handle_t *handle);
#if defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE)
/*!
* @brief Handle retuning
*
* @param base USDHC peripheral base address.
* @param handle USDHC handle.
* @param interrupt flags
*/
static void USDHC_TransferHandleReTuning(USDHC_Type *base, usdhc_handle_t *handle, uint32_t interruptFlags);
#endif
/*******************************************************************************
* Variables
******************************************************************************/
/*! @brief USDHC base pointer array */
static USDHC_Type *const s_usdhcBase[] = USDHC_BASE_PTRS;
/*! @brief USDHC internal handle pointer array */
static usdhc_handle_t *s_usdhcHandle[ARRAY_SIZE(s_usdhcBase)] = {0};
/*! @brief USDHC IRQ name array */
static const IRQn_Type s_usdhcIRQ[] = USDHC_IRQS;
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/*! @brief USDHC clock array name */
static const clock_ip_name_t s_usdhcClock[] = USDHC_CLOCKS;
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
#if (defined(FSL_FEATURE_USDHC_HAS_RESET) && FSL_FEATURE_USDHC_HAS_RESET)
/*! @brief Pointers to USDHC resets for each instance. */
static const reset_ip_name_t s_usdhcResets[] = USDHC_RSTS;
#endif
/* USDHC ISR for transactional APIs. */
#if defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050)
static usdhc_isr_t s_usdhcIsr = (usdhc_isr_t)DefaultISR;
#else
static usdhc_isr_t s_usdhcIsr;
#endif
/*! @brief Dummy data buffer for mmc boot mode */
AT_NONCACHEABLE_SECTION_ALIGN(static uint32_t s_usdhcBootDummy, USDHC_ADMA2_ADDRESS_ALIGN);
/*******************************************************************************
* Code
******************************************************************************/
static uint32_t USDHC_GetInstance(USDHC_Type *base)
{
uint8_t instance = 0;
while ((instance < ARRAY_SIZE(s_usdhcBase)) && (s_usdhcBase[instance] != base))
{
instance++;
}
assert(instance < ARRAY_SIZE(s_usdhcBase));
return instance;
}
static status_t USDHC_SetTransferConfig(USDHC_Type *base, uint32_t transferFlags, size_t blockSize, uint32_t blockCount)
{
uint32_t mixCtrl = base->MIX_CTRL;
if (((uint32_t)kUSDHC_CommandOnly & transferFlags) != 0U)
{
/* clear data flags */
mixCtrl &= ~(USDHC_MIX_CTRL_MSBSEL_MASK | USDHC_MIX_CTRL_BCEN_MASK | USDHC_MIX_CTRL_DTDSEL_MASK |
USDHC_MIX_CTRL_AC12EN_MASK | USDHC_MIX_CTRL_AC23EN_MASK);
if (IS_USDHC_FLAG_SET(base->PRES_STATE, kUSDHC_CommandInhibitFlag))
{
return kStatus_USDHC_BusyTransferring;
}
}
else
{
/* if transfer boot continous, only need set the CREQ bit, leave others as it is */
if ((transferFlags & (uint32_t)kUSDHC_BootDataContinuous) != 0U)
{
/* clear stop at block gap request */
base->PROT_CTRL &= ~USDHC_PROT_CTRL_SABGREQ_MASK;
/* continous transfer data */
base->PROT_CTRL |= USDHC_PROT_CTRL_CREQ_MASK;
return kStatus_Success;
}
/* check data inhibit flag */
if (IS_USDHC_FLAG_SET(base->PRES_STATE, kUSDHC_DataInhibitFlag))
{
return kStatus_USDHC_BusyTransferring;
}
/* check transfer block count */
if ((blockCount > USDHC_MAX_BLOCK_COUNT))
{
return kStatus_InvalidArgument;
}
/* config mix parameter */
mixCtrl &= ~(USDHC_MIX_CTRL_MSBSEL_MASK | USDHC_MIX_CTRL_BCEN_MASK | USDHC_MIX_CTRL_DTDSEL_MASK |
USDHC_MIX_CTRL_AC12EN_MASK);
if ((transferFlags & (uint32_t)kUSDHC_CommandAndRxData) != 0U)
{
mixCtrl |= USDHC_MIX_CTRL_DTDSEL_MASK;
}
if (blockCount > 1U)
{
mixCtrl |= USDHC_MIX_CTRL_MSBSEL_MASK | USDHC_MIX_CTRL_BCEN_MASK;
/* auto command 12 */
if ((transferFlags & (uint32_t)kUSDHC_DataWithAutoCmd12) != 0U)
{
mixCtrl |= USDHC_MIX_CTRL_AC12EN_MASK;
}
}
/* auto command 23, auto send set block count cmd before multiple read/write */
if ((transferFlags & (uint32_t)kUSDHC_DataWithAutoCmd23) != 0U)
{
mixCtrl |= USDHC_MIX_CTRL_AC23EN_MASK;
base->VEND_SPEC2 |= USDHC_VEND_SPEC2_ACMD23_ARGU2_EN_MASK;
/* config the block count to DS_ADDR */
base->DS_ADDR = blockCount;
}
else
{
mixCtrl &= ~USDHC_MIX_CTRL_AC23EN_MASK;
base->VEND_SPEC2 &= ~USDHC_VEND_SPEC2_ACMD23_ARGU2_EN_MASK;
}
/* if transfer boot data, leave the block count to USDHC_SetMmcBootConfig function */
if ((transferFlags & (uint32_t)kUSDHC_BootData) == 0U)
{
/* config data block size/block count */
base->BLK_ATT = ((base->BLK_ATT & ~(USDHC_BLK_ATT_BLKSIZE_MASK | USDHC_BLK_ATT_BLKCNT_MASK)) |
(USDHC_BLK_ATT_BLKSIZE(blockSize) | USDHC_BLK_ATT_BLKCNT(blockCount)));
}
else
{
mixCtrl |= USDHC_MIX_CTRL_MSBSEL_MASK | USDHC_MIX_CTRL_BCEN_MASK;
base->PROT_CTRL |= USDHC_PROT_CTRL_RD_DONE_NO_8CLK_MASK;
}
}
/* config the mix parameter */
base->MIX_CTRL = mixCtrl;
return kStatus_Success;
}
void USDHC_SetDataConfig(USDHC_Type *base,
usdhc_transfer_direction_t dataDirection,
uint32_t blockCount,
uint32_t blockSize)
{
assert(blockCount <= USDHC_MAX_BLOCK_COUNT);
uint32_t mixCtrl = base->MIX_CTRL;
/* block attribute configuration */
base->BLK_ATT = ((base->BLK_ATT & ~(USDHC_BLK_ATT_BLKSIZE_MASK | USDHC_BLK_ATT_BLKCNT_MASK)) |
(USDHC_BLK_ATT_BLKSIZE(blockSize) | USDHC_BLK_ATT_BLKCNT(blockCount)));
/* config mix parameter */
mixCtrl &= ~(USDHC_MIX_CTRL_MSBSEL_MASK | USDHC_MIX_CTRL_BCEN_MASK | USDHC_MIX_CTRL_DTDSEL_MASK);
mixCtrl |= USDHC_MIX_CTRL_DTDSEL(dataDirection) | (blockCount > 1U ? USDHC_MIX_CTRL_MSBSEL_MASK : 0U);
base->MIX_CTRL = mixCtrl;
}
static status_t USDHC_ReceiveCommandResponse(USDHC_Type *base, usdhc_command_t *command)
{
assert(command != NULL);
uint32_t response0 = base->CMD_RSP0;
uint32_t response1 = base->CMD_RSP1;
uint32_t response2 = base->CMD_RSP2;
if (command->responseType != kCARD_ResponseTypeNone)
{
command->response[0U] = response0;
if (command->responseType == kCARD_ResponseTypeR2)
{
/* 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. */
command->response[0U] <<= 8U;
command->response[1U] = (response1 << 8U) | ((response0 & 0xFF000000U) >> 24U);
command->response[2U] = (response2 << 8U) | ((response1 & 0xFF000000U) >> 24U);
command->response[3U] = (base->CMD_RSP3 << 8U) | ((response2 & 0xFF000000U) >> 24U);
}
}
/* check response error flag */
if ((command->responseErrorFlags != 0U) &&
((command->responseType == kCARD_ResponseTypeR1) || (command->responseType == kCARD_ResponseTypeR1b) ||
(command->responseType == kCARD_ResponseTypeR6) || (command->responseType == kCARD_ResponseTypeR5)))
{
if (((command->responseErrorFlags) & (command->response[0U])) != 0U)
{
return kStatus_USDHC_SendCommandFailed;
}
}
return kStatus_Success;
}
static uint32_t USDHC_ReadDataPort(USDHC_Type *base, usdhc_data_t *data, uint32_t transferredWords)
{
uint32_t i;
uint32_t totalWords;
uint32_t wordsCanBeRead; /* The words can be read at this time. */
uint32_t readWatermark = ((base->WTMK_LVL & USDHC_WTMK_LVL_RD_WML_MASK) >> USDHC_WTMK_LVL_RD_WML_SHIFT);
/* If DMA is enable, do not need to polling data port */
if ((base->MIX_CTRL & USDHC_MIX_CTRL_DMAEN_MASK) == 0U)
{
/*
* Add non aligned access support ,user need make sure your buffer size is big
* enough to hold the data,in other words,user need make sure the buffer size
* is 4 byte aligned
*/
if (data->blockSize % sizeof(uint32_t) != 0U)
{
data->blockSize +=
sizeof(uint32_t) - (data->blockSize % sizeof(uint32_t)); /* make the block size as word-aligned */
}
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++] = USDHC_ReadData(base);
i++;
}
}
return transferredWords;
}
static status_t USDHC_ReadByDataPortBlocking(USDHC_Type *base, usdhc_data_t *data)
{
uint32_t totalWords;
uint32_t transferredWords = 0U, interruptStatus = 0U;
status_t error = kStatus_Success;
/*
* Add non aligned access support ,user need make sure your buffer size is big
* enough to hold the data,in other words,user need make sure the buffer size
* is 4 byte aligned
*/
if (data->blockSize % sizeof(uint32_t) != 0U)
{
data->blockSize +=
sizeof(uint32_t) - (data->blockSize % sizeof(uint32_t)); /* make the block size as word-aligned */
}
totalWords = ((data->blockCount * data->blockSize) / sizeof(uint32_t));
while ((error == kStatus_Success) && (transferredWords < totalWords))
{
while (
!(IS_USDHC_FLAG_SET(interruptStatus, ((uint32_t)kUSDHC_BufferReadReadyFlag |
(uint32_t)kUSDHC_DataErrorFlag | (uint32_t)kUSDHC_TuningErrorFlag))))
{
interruptStatus = USDHC_GetInterruptStatusFlags(base);
}
/* during std tuning process, software do not need to read data, but wait BRR is enough */
if ((data->dataType == (uint32_t)kUSDHC_TransferDataTuning) &&
(IS_USDHC_FLAG_SET(interruptStatus, kUSDHC_BufferReadReadyFlag)))
{
USDHC_ClearInterruptStatusFlags(base, kUSDHC_BufferReadReadyFlag);
return kStatus_Success;
}
#if defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE)
else if (IS_USDHC_FLAG_SET(interruptStatus, kUSDHC_TuningErrorFlag))
{
USDHC_ClearInterruptStatusFlags(base, kUSDHC_TuningErrorFlag);
/* if tuning error occur ,return directly */
error = kStatus_USDHC_TuningError;
}
#endif
else if (IS_USDHC_FLAG_SET(interruptStatus, kUSDHC_DataErrorFlag))
{
if (!(data->enableIgnoreError))
{
error = kStatus_Fail;
}
/* clear data error flag */
USDHC_ClearInterruptStatusFlags(base, kUSDHC_DataErrorFlag);
}
else
{
/* Intentional empty */
}
if (error == kStatus_Success)
{
transferredWords = USDHC_ReadDataPort(base, data, transferredWords);
/* clear buffer read ready */
USDHC_ClearInterruptStatusFlags(base, kUSDHC_BufferReadReadyFlag);
interruptStatus = 0U;
}
}
/* Clear data complete flag after the last read operation. */
USDHC_ClearInterruptStatusFlags(base, kUSDHC_DataCompleteFlag);
return error;
}
static uint32_t USDHC_WriteDataPort(USDHC_Type *base, usdhc_data_t *data, uint32_t transferredWords)
{
uint32_t i;
uint32_t totalWords;
uint32_t wordsCanBeWrote; /* Words can be wrote at this time. */
uint32_t writeWatermark = ((base->WTMK_LVL & USDHC_WTMK_LVL_WR_WML_MASK) >> USDHC_WTMK_LVL_WR_WML_SHIFT);
/* If DMA is enable, do not need to polling data port */
if ((base->MIX_CTRL & USDHC_MIX_CTRL_DMAEN_MASK) == 0U)
{
/*
* Add non aligned access support ,user need make sure your buffer size is big
* enough to hold the data,in other words,user need make sure the buffer size
* is 4 byte aligned
*/
if (data->blockSize % sizeof(uint32_t) != 0U)
{
data->blockSize +=
sizeof(uint32_t) - (data->blockSize % sizeof(uint32_t)); /* make the block size as word-aligned */
}
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)
{
USDHC_WriteData(base, data->txData[transferredWords++]);
i++;
}
}
return transferredWords;
}
static status_t USDHC_WriteByDataPortBlocking(USDHC_Type *base, usdhc_data_t *data)
{
uint32_t totalWords;
uint32_t transferredWords = 0U, interruptStatus = 0U;
status_t error = kStatus_Success;
/*
* Add non aligned access support ,user need make sure your buffer size is big
* enough to hold the data,in other words,user need make sure the buffer size
* is 4 byte aligned
*/
if (data->blockSize % sizeof(uint32_t) != 0U)
{
data->blockSize +=
sizeof(uint32_t) - (data->blockSize % sizeof(uint32_t)); /* make the block size as word-aligned */
}
totalWords = (data->blockCount * data->blockSize) / sizeof(uint32_t);
while ((error == kStatus_Success) && (transferredWords < totalWords))
{
while (!(IS_USDHC_FLAG_SET(interruptStatus, (uint32_t)kUSDHC_BufferWriteReadyFlag |
(uint32_t)kUSDHC_DataErrorFlag |
(uint32_t)kUSDHC_TuningErrorFlag)))
{
interruptStatus = USDHC_GetInterruptStatusFlags(base);
}
#if defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE)
if (IS_USDHC_FLAG_SET(interruptStatus, kUSDHC_TuningErrorFlag))
{
USDHC_ClearInterruptStatusFlags(base, kUSDHC_TuningErrorFlag);
/* if tuning error occur ,return directly */
return kStatus_USDHC_TuningError;
}
else
#endif
if (IS_USDHC_FLAG_SET(interruptStatus, kUSDHC_DataErrorFlag))
{
if (!(data->enableIgnoreError))
{
error = kStatus_Fail;
}
/* clear data error flag */
USDHC_ClearInterruptStatusFlags(base, kUSDHC_DataErrorFlag);
}
else
{
/* Intentional empty */
}
if (error == kStatus_Success)
{
transferredWords = USDHC_WriteDataPort(base, data, transferredWords);
/* clear buffer write ready */
USDHC_ClearInterruptStatusFlags(base, kUSDHC_BufferWriteReadyFlag);
interruptStatus = 0U;
}
}
/* Wait write data complete or data transfer error after the last writing operation. */
while (!(IS_USDHC_FLAG_SET(interruptStatus, (uint32_t)kUSDHC_DataCompleteFlag | (uint32_t)kUSDHC_DataErrorFlag)))
{
interruptStatus = USDHC_GetInterruptStatusFlags(base);
}
if ((interruptStatus & (uint32_t)kUSDHC_DataErrorFlag) != 0UL)
{
if (!(data->enableIgnoreError))
{
error = kStatus_Fail;
}
}
USDHC_ClearInterruptStatusFlags(base, ((uint32_t)kUSDHC_DataCompleteFlag | (uint32_t)kUSDHC_DataErrorFlag));
return error;
}
/*!
* brief send command function
*
* param base USDHC peripheral base address.
* param command configuration
*/
void USDHC_SendCommand(USDHC_Type *base, usdhc_command_t *command)
{
assert(NULL != command);
uint32_t xferType = base->CMD_XFR_TYP, flags = command->flags;
if (((base->PRES_STATE & (uint32_t)kUSDHC_CommandInhibitFlag) == 0U) && (command->type != kCARD_CommandTypeEmpty))
{
if ((command->responseType == kCARD_ResponseTypeR1) || (command->responseType == kCARD_ResponseTypeR5) ||
(command->responseType == kCARD_ResponseTypeR6) || (command->responseType == kCARD_ResponseTypeR7))
{
flags |= ((uint32_t)kUSDHC_ResponseLength48Flag | (uint32_t)kUSDHC_EnableCrcCheckFlag |
(uint32_t)kUSDHC_EnableIndexCheckFlag);
}
else if ((command->responseType == kCARD_ResponseTypeR1b) || (command->responseType == kCARD_ResponseTypeR5b))
{
flags |= ((uint32_t)kUSDHC_ResponseLength48BusyFlag | (uint32_t)kUSDHC_EnableCrcCheckFlag |
(uint32_t)kUSDHC_EnableIndexCheckFlag);
}
else if (command->responseType == kCARD_ResponseTypeR2)
{
flags |= ((uint32_t)kUSDHC_ResponseLength136Flag | (uint32_t)kUSDHC_EnableCrcCheckFlag);
}
else if ((command->responseType == kCARD_ResponseTypeR3) || (command->responseType == kCARD_ResponseTypeR4))
{
flags |= ((uint32_t)kUSDHC_ResponseLength48Flag);
}
else
{
/* Intentional empty */
}
if (command->type == kCARD_CommandTypeAbort)
{
flags |= (uint32_t)kUSDHC_CommandTypeAbortFlag;
}
/* config cmd index */
xferType &= ~(USDHC_CMD_XFR_TYP_CMDINX_MASK | USDHC_CMD_XFR_TYP_CMDTYP_MASK | USDHC_CMD_XFR_TYP_CICEN_MASK |
USDHC_CMD_XFR_TYP_CCCEN_MASK | USDHC_CMD_XFR_TYP_RSPTYP_MASK | USDHC_CMD_XFR_TYP_DPSEL_MASK);
xferType |=
(((command->index << USDHC_CMD_XFR_TYP_CMDINX_SHIFT) & USDHC_CMD_XFR_TYP_CMDINX_MASK) |
((flags) & (USDHC_CMD_XFR_TYP_CMDTYP_MASK | USDHC_CMD_XFR_TYP_CICEN_MASK | USDHC_CMD_XFR_TYP_CCCEN_MASK |
USDHC_CMD_XFR_TYP_RSPTYP_MASK | USDHC_CMD_XFR_TYP_DPSEL_MASK)));
/* config the command xfertype and argument */
base->CMD_ARG = command->argument;
base->CMD_XFR_TYP = xferType;
}
if (command->type == kCARD_CommandTypeEmpty)
{
/* disable CMD done interrupt for empty command */
base->INT_SIGNAL_EN &= ~USDHC_INT_SIGNAL_EN_CCIEN_MASK;
}
}
static status_t USDHC_WaitCommandDone(USDHC_Type *base, usdhc_command_t *command, bool pollingCmdDone)
{
assert(NULL != command);
status_t error = kStatus_Success;
uint32_t interruptStatus = 0U;
/* check if need polling command done or not */
if (pollingCmdDone)
{
/* Wait command complete or USDHC encounters error. */
while (!(IS_USDHC_FLAG_SET(interruptStatus, kUSDHC_CommandFlag)))
{
interruptStatus = USDHC_GetInterruptStatusFlags(base);
}
if ((interruptStatus & (uint32_t)kUSDHC_CommandErrorFlag) != 0UL)
{
error = kStatus_Fail;
}
/* Receive response when command completes successfully. */
if (error == kStatus_Success)
{
error = USDHC_ReceiveCommandResponse(base, command);
}
USDHC_ClearInterruptStatusFlags(base, kUSDHC_CommandFlag);
}
return error;
}
static status_t USDHC_TransferDataBlocking(USDHC_Type *base, usdhc_data_t *data, bool enDMA)
{
status_t error = kStatus_Success;
uint32_t interruptStatus = 0U;
if (enDMA)
{
/* Wait data complete or USDHC encounters error. */
while (!(IS_USDHC_FLAG_SET(interruptStatus, ((uint32_t)kUSDHC_DataDMAFlag | (uint32_t)kUSDHC_TuningErrorFlag))))
{
interruptStatus = USDHC_GetInterruptStatusFlags(base);
}
#if defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE)
if (IS_USDHC_FLAG_SET(interruptStatus, kUSDHC_TuningErrorFlag))
{
error = kStatus_USDHC_TuningError;
}
else
#endif
if (IS_USDHC_FLAG_SET(interruptStatus, ((uint32_t)kUSDHC_DataErrorFlag | (uint32_t)kUSDHC_DmaErrorFlag)))
{
if ((!(data->enableIgnoreError)) || (IS_USDHC_FLAG_SET(interruptStatus, kUSDHC_DataTimeoutFlag)))
{
error = kStatus_USDHC_TransferDataFailed;
}
}
else
{
/* Intentional empty */
}
/* load dummy data */
if ((data->dataType == (uint32_t)kUSDHC_TransferDataBootcontinous) && (error == kStatus_Success))
{
*(data->rxData) = s_usdhcBootDummy;
}
USDHC_ClearInterruptStatusFlags(base, ((uint32_t)kUSDHC_DataDMAFlag | (uint32_t)kUSDHC_TuningErrorFlag));
}
else
{
if (data->rxData != NULL)
{
error = USDHC_ReadByDataPortBlocking(base, data);
if (error != kStatus_Success)
{
return error;
}
}
else
{
error = USDHC_WriteByDataPortBlocking(base, data);
if (error != kStatus_Success)
{
return error;
}
}
}
return error;
}
/*!
* brief USDHC module initialization function.
*
* Configures the USDHC according to the user configuration.
*
* Example:
code
usdhc_config_t config;
config.cardDetectDat3 = false;
config.endianMode = kUSDHC_EndianModeLittle;
config.dmaMode = kUSDHC_DmaModeAdma2;
config.readWatermarkLevel = 128U;
config.writeWatermarkLevel = 128U;
USDHC_Init(USDHC, &config);
endcode
*
* param base USDHC peripheral base address.
* param config USDHC configuration information.
* retval kStatus_Success Operate successfully.
*/
void USDHC_Init(USDHC_Type *base, const usdhc_config_t *config)
{
assert(config != NULL);
assert((config->writeWatermarkLevel >= 1U) && (config->writeWatermarkLevel <= 128U));
assert((config->readWatermarkLevel >= 1U) && (config->readWatermarkLevel <= 128U));
#if !(defined(FSL_FEATURE_USDHC_HAS_NO_RW_BURST_LEN) && FSL_FEATURE_USDHC_HAS_NO_RW_BURST_LEN)
assert(config->writeBurstLen <= 16U);
#endif
uint32_t proctl, sysctl, wml;
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/* Enable USDHC clock. */
CLOCK_EnableClock(s_usdhcClock[USDHC_GetInstance(base)]);
#endif
#if (defined(FSL_FEATURE_USDHC_HAS_RESET) && FSL_FEATURE_USDHC_HAS_RESET)
/* Reset the USDHC module */
RESET_PeripheralReset(s_usdhcResets[USDHC_GetInstance(base)]);
#endif
/* Reset ALL USDHC. */
base->SYS_CTRL |= USDHC_SYS_CTRL_RSTA_MASK | USDHC_SYS_CTRL_RSTC_MASK | USDHC_SYS_CTRL_RSTD_MASK;
proctl = base->PROT_CTRL;
wml = base->WTMK_LVL;
sysctl = base->SYS_CTRL;
proctl &= ~(USDHC_PROT_CTRL_EMODE_MASK | USDHC_PROT_CTRL_DMASEL_MASK);
/* Endian mode*/
proctl |= USDHC_PROT_CTRL_EMODE(config->endianMode);
#if (defined(FSL_FEATURE_USDHC_HAS_NO_RW_BURST_LEN) && FSL_FEATURE_USDHC_HAS_NO_RW_BURST_LEN)
/* Watermark level */
wml &= ~(USDHC_WTMK_LVL_RD_WML_MASK | USDHC_WTMK_LVL_WR_WML_MASK);
wml |= (USDHC_WTMK_LVL_RD_WML(config->readWatermarkLevel) | USDHC_WTMK_LVL_WR_WML(config->writeWatermarkLevel));
#else
/* Watermark level */
wml &= ~(USDHC_WTMK_LVL_RD_WML_MASK | USDHC_WTMK_LVL_WR_WML_MASK | USDHC_WTMK_LVL_RD_BRST_LEN_MASK |
USDHC_WTMK_LVL_WR_BRST_LEN_MASK);
wml |= (USDHC_WTMK_LVL_RD_WML(config->readWatermarkLevel) | USDHC_WTMK_LVL_WR_WML(config->writeWatermarkLevel) |
USDHC_WTMK_LVL_RD_BRST_LEN(config->readBurstLen) | USDHC_WTMK_LVL_WR_BRST_LEN(config->writeBurstLen));
#endif
/* config the data timeout value */
sysctl &= ~USDHC_SYS_CTRL_DTOCV_MASK;
sysctl |= USDHC_SYS_CTRL_DTOCV(config->dataTimeout);
base->SYS_CTRL = sysctl;
base->WTMK_LVL = wml;
base->PROT_CTRL = proctl;
#if FSL_FEATURE_USDHC_HAS_EXT_DMA
/* disable external DMA */
base->VEND_SPEC &= ~USDHC_VEND_SPEC_EXT_DMA_EN_MASK;
#endif
/* disable internal DMA and DDR mode */
base->MIX_CTRL &= ~(USDHC_MIX_CTRL_DMAEN_MASK | USDHC_MIX_CTRL_DDR_EN_MASK);
/* disable interrupt, enable all the interrupt status, clear status. */
base->INT_STATUS_EN = kUSDHC_AllInterruptFlags;
base->INT_SIGNAL_EN = 0UL;
base->INT_STATUS = kUSDHC_AllInterruptFlags;
}
/*!
* brief Deinitializes the USDHC.
*
* param base USDHC peripheral base address.
*/
void USDHC_Deinit(USDHC_Type *base)
{
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/* Disable clock. */
CLOCK_DisableClock(s_usdhcClock[USDHC_GetInstance(base)]);
#endif
}
/*!
* brief Resets the USDHC.
*
* param base USDHC peripheral base address.
* param mask The reset type mask(_usdhc_reset).
* param timeout Timeout for reset.
* retval true Reset successfully.
* retval false Reset failed.
*/
bool USDHC_Reset(USDHC_Type *base, uint32_t mask, uint32_t timeout)
{
base->SYS_CTRL |= (mask & (USDHC_SYS_CTRL_RSTA_MASK | USDHC_SYS_CTRL_RSTC_MASK | USDHC_SYS_CTRL_RSTD_MASK
#if defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE)
| USDHC_SYS_CTRL_RSTT_MASK
#endif
));
/* Delay some time to wait reset success. */
while (IS_USDHC_FLAG_SET(base->SYS_CTRL, mask))
{
if (timeout == 0UL)
{
break;
}
timeout--;
}
return ((0UL == timeout) ? false : true);
}
/*!
* brief Gets the capability information.
*
* param base USDHC peripheral base address.
* param capability Structure to save capability information.
*/
void USDHC_GetCapability(USDHC_Type *base, usdhc_capability_t *capability)
{
assert(capability != NULL);
uint32_t htCapability;
uint32_t maxBlockLength;
htCapability = base->HOST_CTRL_CAP;
/* Get the capability of USDHC. */
maxBlockLength = ((htCapability & USDHC_HOST_CTRL_CAP_MBL_MASK) >> USDHC_HOST_CTRL_CAP_MBL_SHIFT);
capability->maxBlockLength = (512UL << maxBlockLength);
/* Other attributes not in HTCAPBLT register. */
capability->maxBlockCount = USDHC_MAX_BLOCK_COUNT;
capability->flags =
(htCapability & (USDHC_HOST_CTRL_CAP_ADMAS_MASK | USDHC_HOST_CTRL_CAP_HSS_MASK | USDHC_HOST_CTRL_CAP_DMAS_MASK |
USDHC_HOST_CTRL_CAP_SRS_MASK | USDHC_HOST_CTRL_CAP_VS33_MASK));
capability->flags |= htCapability & USDHC_HOST_CTRL_CAP_VS30_MASK;
capability->flags |= htCapability & USDHC_HOST_CTRL_CAP_VS18_MASK;
capability->flags |= htCapability & USDHC_HOST_CTRL_CAP_DDR50_SUPPORT_MASK;
#if defined(FSL_FEATURE_USDHC_HAS_SDR104_MODE) && FSL_FEATURE_USDHC_HAS_SDR104_MODE
capability->flags |= USDHC_HOST_CTRL_CAP_SDR104_SUPPORT_MASK;
#endif
#if defined(FSL_FEATURE_USDHC_HAS_SDR104_MODE) && FSL_FEATURE_USDHC_HAS_SDR50_MODE
capability->flags |= USDHC_HOST_CTRL_CAP_SDR50_SUPPORT_MASK;
#endif
/* USDHC support 4/8 bit data bus width. */
capability->flags |= (USDHC_HOST_CTRL_CAP_MBL_SHIFT << 0UL) | (USDHC_HOST_CTRL_CAP_MBL_SHIFT << 1UL);
}
/*!
* brief Sets the SD bus clock frequency.
*
* param base USDHC peripheral base address.
* param srcClock_Hz USDHC 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 USDHC_SetSdClock(USDHC_Type *base, uint32_t srcClock_Hz, uint32_t busClock_Hz)
{
assert(srcClock_Hz != 0U);
assert(busClock_Hz != 0U);
uint32_t totalDiv = 0UL;
uint32_t divisor = 0UL;
uint32_t prescaler = 0UL;
uint32_t sysctl = 0UL;
uint32_t nearestFrequency = 0UL;
if (busClock_Hz > srcClock_Hz)
{
busClock_Hz = srcClock_Hz;
}
totalDiv = srcClock_Hz / busClock_Hz;
/* calucate total divisor first */
if (totalDiv > (USDHC_MAX_CLKFS * USDHC_MAX_DVS))
{
return 0UL;
}
if (totalDiv != 0UL)
{
/* calucate the divisor (srcClock_Hz / divisor) <= busClock_Hz */
if ((srcClock_Hz / totalDiv) > busClock_Hz)
{
totalDiv++;
}
/* divide the total divisor to div and prescaler */
if (totalDiv > USDHC_MAX_DVS)
{
prescaler = totalDiv / USDHC_MAX_DVS;
/* prescaler must be a value which equal 2^n and smaller than SDHC_MAX_CLKFS */
while (((USDHC_MAX_CLKFS % prescaler) != 0UL) || (prescaler == 1UL))
{
prescaler++;
}
/* calucate the divisor */
divisor = totalDiv / prescaler;
/* fine tuning the divisor until divisor * prescaler >= totalDiv */
while ((divisor * prescaler) < totalDiv)
{
divisor++;
if (divisor > USDHC_MAX_DVS)
{
prescaler <<= 1UL;
if (prescaler > USDHC_MAX_CLKFS)
{
return 0UL;
}
divisor = totalDiv / prescaler;
}
}
}
else
{
/* in this situation , divsior and SDCLKFS can generate same clock
use SDCLKFS*/
if (((totalDiv % 2UL) != 0UL) && (totalDiv != 1UL))
{
divisor = totalDiv;
prescaler = 1UL;
}
else
{
divisor = 1UL;
prescaler = totalDiv;
}
}
nearestFrequency = srcClock_Hz / (divisor == 0UL ? 1UL : divisor) / prescaler;
}
/* in this condition , srcClock_Hz = busClock_Hz, */
else
{
/* in DDR mode , set SDCLKFS to 0, divisor = 0, actually the
totoal divider = 2U */
divisor = 0UL;
prescaler = 0UL;
nearestFrequency = srcClock_Hz;
}
/* calucate the value write to register */
if (divisor != 0UL)
{
USDHC_PREV_DVS(divisor);
}
/* calucate the value write to register */
if (prescaler != 0UL)
{
USDHC_PREV_CLKFS(prescaler, 1UL);
}
/* Set the SD clock frequency divisor, SD clock frequency select, data timeout counter value. */
sysctl = base->SYS_CTRL;
sysctl &= ~(USDHC_SYS_CTRL_DVS_MASK | USDHC_SYS_CTRL_SDCLKFS_MASK);
sysctl |= (USDHC_SYS_CTRL_DVS(divisor) | USDHC_SYS_CTRL_SDCLKFS(prescaler));
base->SYS_CTRL = sysctl;
/* Wait until the SD clock is stable. */
while (!IS_USDHC_FLAG_SET(base->PRES_STATE, USDHC_PRES_STATE_SDSTB_MASK))
{
}
return nearestFrequency;
}
/*!
* brief Sends 80 clocks to the card to set it to the active state.
*
* This function must be called each time the card is inserted to ensure that the card can receive the command
* correctly.
*
* param base USDHC peripheral base address.
* param timeout Timeout to initialize card.
* retval true Set card active successfully.
* retval false Set card active failed.
*/
bool USDHC_SetCardActive(USDHC_Type *base, uint32_t timeout)
{
base->SYS_CTRL |= USDHC_SYS_CTRL_INITA_MASK;
/* Delay some time to wait card become active state. */
while (IS_USDHC_FLAG_SET(base->SYS_CTRL, USDHC_SYS_CTRL_INITA_MASK))
{
if (0UL == timeout)
{
break;
}
timeout--;
}
return ((0UL == timeout) ? false : true);
}
/*!
* brief the enable/disable DDR mode
*
* param base USDHC peripheral base address.
* param enable/disable flag
* param nibble position
*/
void USDHC_EnableDDRMode(USDHC_Type *base, bool enable, uint32_t nibblePos)
{
uint32_t prescaler = (base->SYS_CTRL & USDHC_SYS_CTRL_SDCLKFS_MASK) >> USDHC_SYS_CTRL_SDCLKFS_SHIFT;
if (enable)
{
base->MIX_CTRL &= ~USDHC_MIX_CTRL_NIBBLE_POS_MASK;
base->MIX_CTRL |= (USDHC_MIX_CTRL_DDR_EN_MASK | USDHC_MIX_CTRL_NIBBLE_POS(nibblePos));
prescaler >>= 1UL;
}
else
{
base->MIX_CTRL &= ~USDHC_MIX_CTRL_DDR_EN_MASK;
if (prescaler == 0UL)
{
prescaler += 1UL;
}
else
{
prescaler <<= 1UL;
}
}
base->SYS_CTRL = (base->SYS_CTRL & (~USDHC_SYS_CTRL_SDCLKFS_MASK)) | USDHC_SYS_CTRL_SDCLKFS(prescaler);
}
/*!
* brief Configures the MMC boot feature.
*
* Example:
code
usdhc_boot_config_t config;
config.ackTimeoutCount = 4;
config.bootMode = kUSDHC_BootModeNormal;
config.blockCount = 5;
config.enableBootAck = true;
config.enableBoot = true;
config.enableAutoStopAtBlockGap = true;
USDHC_SetMmcBootConfig(USDHC, &config);
endcode
*
* param base USDHC peripheral base address.
* param config The MMC boot configuration information.
*/
void USDHC_SetMmcBootConfig(USDHC_Type *base, const usdhc_boot_config_t *config)
{
assert(config != NULL);
assert(config->ackTimeoutCount <= (USDHC_MMC_BOOT_DTOCV_ACK_MASK >> USDHC_MMC_BOOT_DTOCV_ACK_SHIFT));
assert(config->blockCount <= (USDHC_MMC_BOOT_BOOT_BLK_CNT_MASK >> USDHC_MMC_BOOT_BOOT_BLK_CNT_SHIFT));
uint32_t mmcboot = base->MMC_BOOT;
mmcboot &= ~(USDHC_MMC_BOOT_DTOCV_ACK_MASK | USDHC_MMC_BOOT_BOOT_MODE_MASK | USDHC_MMC_BOOT_BOOT_BLK_CNT_MASK);
mmcboot |= USDHC_MMC_BOOT_DTOCV_ACK(config->ackTimeoutCount) | USDHC_MMC_BOOT_BOOT_MODE(config->bootMode);
if (config->enableBootAck)
{
mmcboot |= USDHC_MMC_BOOT_BOOT_ACK_MASK;
}
if (config->enableAutoStopAtBlockGap)
{
mmcboot |=
USDHC_MMC_BOOT_AUTO_SABG_EN_MASK | USDHC_MMC_BOOT_BOOT_BLK_CNT(USDHC_MAX_BLOCK_COUNT - config->blockCount);
/* always set the block count to USDHC_MAX_BLOCK_COUNT to use auto stop at block gap feature */
base->BLK_ATT = ((base->BLK_ATT & ~(USDHC_BLK_ATT_BLKSIZE_MASK | USDHC_BLK_ATT_BLKCNT_MASK)) |
(USDHC_BLK_ATT_BLKSIZE(config->blockSize) | USDHC_BLK_ATT_BLKCNT(USDHC_MAX_BLOCK_COUNT)));
}
else
{
base->BLK_ATT = ((base->BLK_ATT & ~(USDHC_BLK_ATT_BLKSIZE_MASK | USDHC_BLK_ATT_BLKCNT_MASK)) |
(USDHC_BLK_ATT_BLKSIZE(config->blockSize) | USDHC_BLK_ATT_BLKCNT(config->blockCount)));
}
base->MMC_BOOT = mmcboot;
}
/*!
* brief Sets the ADMA1 descriptor table configuration.
*
* param admaTable Adma table address.
* param admaTableWords Adma table length.
* param dataBufferAddr Data buffer address.
* param dataBytes Data length.
* param flags ADAM descriptor flag, used to indicate to create multiple or single descriptor, please
* reference _usdhc_adma_flag.
* retval kStatus_OutOfRange ADMA descriptor table length isn't enough to describe data.
* retval kStatus_Success Operate successfully.
*/
status_t USDHC_SetADMA1Descriptor(
uint32_t *admaTable, uint32_t admaTableWords, const uint32_t *dataBufferAddr, uint32_t dataBytes, uint32_t flags)
{
assert(NULL != admaTable);
assert(NULL != dataBufferAddr);
uint32_t miniEntries, startEntries = 0UL,
maxEntries = (admaTableWords * sizeof(uint32_t)) / sizeof(usdhc_adma1_descriptor_t);
usdhc_adma1_descriptor_t *adma1EntryAddress = (usdhc_adma1_descriptor_t *)(uint32_t)(admaTable);
uint32_t i, dmaBufferLen = 0UL;
const uint32_t *data = dataBufferAddr;
if (((uint32_t)data % USDHC_ADMA1_ADDRESS_ALIGN) != 0UL)
{
return kStatus_USDHC_DMADataAddrNotAlign;
}
if (flags == (uint32_t)kUSDHC_AdmaDescriptorMultipleFlag)
{
return kStatus_USDHC_NotSupport;
}
/*
* Add non aligned access support ,user need make sure your buffer size is big
* enough to hold the data,in other words,user need make sure the buffer size
* is 4 byte aligned
*/
if (dataBytes % sizeof(uint32_t) != 0UL)
{
/* make the data length as word-aligned */
dataBytes += sizeof(uint32_t) - (dataBytes % sizeof(uint32_t));
}
/* Check if ADMA descriptor's number is enough. */
if ((dataBytes % USDHC_ADMA1_DESCRIPTOR_MAX_LENGTH_PER_ENTRY) == 0UL)
{
miniEntries = dataBytes / USDHC_ADMA1_DESCRIPTOR_MAX_LENGTH_PER_ENTRY;
}
else
{
miniEntries = ((dataBytes / USDHC_ADMA1_DESCRIPTOR_MAX_LENGTH_PER_ENTRY) + 1UL);
}
/* ADMA1 needs two descriptors to finish a transfer */
miniEntries <<= 1UL;
if (miniEntries + startEntries > maxEntries)
{
return kStatus_OutOfRange;
}
for (i = startEntries; i < (miniEntries + startEntries); i += 2UL)
{
if (dataBytes > USDHC_ADMA1_DESCRIPTOR_MAX_LENGTH_PER_ENTRY)
{
dmaBufferLen = USDHC_ADMA1_DESCRIPTOR_MAX_LENGTH_PER_ENTRY;
}
else
{
dmaBufferLen = dataBytes;
}
adma1EntryAddress[i] = (dmaBufferLen << USDHC_ADMA1_DESCRIPTOR_LENGTH_SHIFT);
adma1EntryAddress[i] |= (uint32_t)kUSDHC_Adma1DescriptorTypeSetLength;
adma1EntryAddress[i + 1UL] = (uint32_t)(data);
adma1EntryAddress[i + 1UL] |=
(uint32_t)kUSDHC_Adma1DescriptorTypeTransfer | (uint32_t)kUSDHC_Adma1DescriptorInterrupFlag;
data = (uint32_t *)((uint32_t)data + dmaBufferLen);
dataBytes -= dmaBufferLen;
}
/* the end of the descriptor */
adma1EntryAddress[i - 1UL] |= (uint32_t)kUSDHC_Adma1DescriptorEndFlag;
return kStatus_Success;
}
/*!
* brief Sets the ADMA2 descriptor table configuration.
*
* param admaTable Adma table address.
* param admaTableWords Adma table length.
* param dataBufferAddr Data buffer address.
* param dataBytes Data Data length.
* param flags ADAM descriptor flag, used to indicate to create multiple or single descriptor, please
* reference _usdhc_adma_flag.
* retval kStatus_OutOfRange ADMA descriptor table length isn't enough to describe data.
* retval kStatus_Success Operate successfully.
*/
status_t USDHC_SetADMA2Descriptor(
uint32_t *admaTable, uint32_t admaTableWords, const uint32_t *dataBufferAddr, uint32_t dataBytes, uint32_t flags)
{
assert(NULL != admaTable);
assert(NULL != dataBufferAddr);
uint32_t miniEntries, startEntries = 0UL,
maxEntries = (admaTableWords * sizeof(uint32_t)) / sizeof(usdhc_adma2_descriptor_t);
usdhc_adma2_descriptor_t *adma2EntryAddress = (usdhc_adma2_descriptor_t *)(uint32_t)(admaTable);
uint32_t i, dmaBufferLen = 0UL;
const uint32_t *data = dataBufferAddr;
if (((uint32_t)data % USDHC_ADMA2_ADDRESS_ALIGN) != 0UL)
{
return kStatus_USDHC_DMADataAddrNotAlign;
}
/*
* Add non aligned access support ,user need make sure your buffer size is big
* enough to hold the data,in other words,user need make sure the buffer size
* is 4 byte aligned
*/
if (dataBytes % sizeof(uint32_t) != 0UL)
{
/* make the data length as word-aligned */
dataBytes += sizeof(uint32_t) - (dataBytes % sizeof(uint32_t));
}
/* Check if ADMA descriptor's number is enough. */
if ((dataBytes % USDHC_ADMA2_DESCRIPTOR_MAX_LENGTH_PER_ENTRY) == 0UL)
{
miniEntries = dataBytes / USDHC_ADMA2_DESCRIPTOR_MAX_LENGTH_PER_ENTRY;
}
else
{
miniEntries = ((dataBytes / USDHC_ADMA2_DESCRIPTOR_MAX_LENGTH_PER_ENTRY) + 1UL);
}
/* calucate the start entry for multiple descriptor mode, ADMA engine is not stop, so update the descriptor
data adress and data size is enough */
if (flags == (uint32_t)kUSDHC_AdmaDescriptorMultipleFlag)
{
for (i = 0UL; i < maxEntries; i++)
{
if ((adma2EntryAddress[i].attribute & (uint32_t)kUSDHC_Adma2DescriptorValidFlag) == 0UL)
{
break;
}
}
startEntries = i;
/* add one entry for dummy entry */
miniEntries += 1UL;
}
if ((miniEntries + startEntries) > maxEntries)
{
return kStatus_OutOfRange;
}
for (i = startEntries; i < (miniEntries + startEntries); i++)
{
if (dataBytes > USDHC_ADMA2_DESCRIPTOR_MAX_LENGTH_PER_ENTRY)
{
dmaBufferLen = USDHC_ADMA2_DESCRIPTOR_MAX_LENGTH_PER_ENTRY;
}
else
{
dmaBufferLen = (dataBytes == 0UL ? sizeof(uint32_t) :
dataBytes); /* adma don't support 0 data length transfer descriptor */
}
/* Each descriptor for ADMA2 is 64-bit in length */
adma2EntryAddress[i].address = (dataBytes == 0UL) ? &s_usdhcBootDummy : data;
adma2EntryAddress[i].attribute = (dmaBufferLen << USDHC_ADMA2_DESCRIPTOR_LENGTH_SHIFT);
adma2EntryAddress[i].attribute |=
(dataBytes == 0UL) ?
0UL :
((uint32_t)kUSDHC_Adma2DescriptorTypeTransfer | (uint32_t)kUSDHC_Adma2DescriptorInterruptFlag);
data = (uint32_t *)((uint32_t)data + dmaBufferLen);
if (dataBytes != 0UL)
{
dataBytes -= dmaBufferLen;
}
}
/* add a dummy valid ADMA descriptor for multiple descriptor mode, this is useful when transfer boot data, the ADMA
engine
will not stop at block gap */
if (flags == (uint32_t)kUSDHC_AdmaDescriptorMultipleFlag)
{
adma2EntryAddress[startEntries + 1UL].attribute |= (uint32_t)kUSDHC_Adma2DescriptorTypeTransfer;
}
else
{
/* set the end bit */
adma2EntryAddress[i - 1UL].attribute |= (uint32_t)kUSDHC_Adma2DescriptorEndFlag;
}
return kStatus_Success;
}
/*!
* brief Internal DMA configuration.
* This function is used to config the USDHC DMA related registers.
* param base USDHC peripheral base address.
* param adma configuration
* param dataAddr transfer data address, a simple DMA parameter, if ADMA is used, leave it to NULL.
* param enAutoCmd23 flag to indicate Auto CMD23 is enable or not, a simple DMA parameter,if ADMA is used, leave it to
* false.
* retval kStatus_OutOfRange ADMA descriptor table length isn't enough to describe data.
* retval kStatus_Success Operate successfully.
*/
status_t USDHC_SetInternalDmaConfig(USDHC_Type *base,
usdhc_adma_config_t *dmaConfig,
const uint32_t *dataAddr,
bool enAutoCmd23)
{
assert(dmaConfig != NULL);
assert(dataAddr != NULL);
assert((NULL != dmaConfig->admaTable) &&
(((USDHC_ADMA_TABLE_ADDRESS_ALIGN - 1U) & (uint32_t)dmaConfig->admaTable) == 0UL));
#if FSL_FEATURE_USDHC_HAS_EXT_DMA
/* disable the external DMA if support */
base->VEND_SPEC &= ~USDHC_VEND_SPEC_EXT_DMA_EN_MASK;
#endif
if (dmaConfig->dmaMode == kUSDHC_DmaModeSimple)
{
/* check DMA data buffer address align or not */
if (((uint32_t)dataAddr % USDHC_ADMA2_ADDRESS_ALIGN) != 0UL)
{
return kStatus_USDHC_DMADataAddrNotAlign;
}
/* in simple DMA mode if use auto CMD23, address should load to ADMA addr,
and block count should load to DS_ADDR*/
if (enAutoCmd23)
{
base->ADMA_SYS_ADDR = USDHC_ADDR_CPU_2_DMA((uint32_t)dataAddr);
}
else
{
base->DS_ADDR = USDHC_ADDR_CPU_2_DMA((uint32_t)dataAddr);
}
}
else
{
/* When use ADMA, disable simple DMA */
base->DS_ADDR = 0UL;
base->ADMA_SYS_ADDR = USDHC_ADDR_CPU_2_DMA((uint32_t)(dmaConfig->admaTable));
}
#if (defined(FSL_FEATURE_USDHC_HAS_NO_RW_BURST_LEN) && FSL_FEATURE_USDHC_HAS_NO_RW_BURST_LEN)
/* select DMA mode and config the burst length */
base->PROT_CTRL &= ~(USDHC_PROT_CTRL_DMASEL_MASK);
base->PROT_CTRL |= USDHC_PROT_CTRL_DMASEL(dmaConfig->dmaMode);
#else
/* select DMA mode and config the burst length */
base->PROT_CTRL &= ~(USDHC_PROT_CTRL_DMASEL_MASK | USDHC_PROT_CTRL_BURST_LEN_EN_MASK);
base->PROT_CTRL |= USDHC_PROT_CTRL_DMASEL(dmaConfig->dmaMode) | USDHC_PROT_CTRL_BURST_LEN_EN(dmaConfig->burstLen);
#endif
/* enable DMA */
base->MIX_CTRL |= USDHC_MIX_CTRL_DMAEN_MASK;
return kStatus_Success;
}
/*!
* brief Sets the DMA descriptor table configuration.
* A high level DMA descriptor configuration function.
* param base USDHC peripheral base address.
* param adma configuration
* param data Data descriptor
* param flags ADAM descriptor flag, used to indicate to create multiple or single descriptor, please
* reference _usdhc_adma_flag
* retval kStatus_OutOfRange ADMA descriptor table length isn't enough to describe data.
* retval kStatus_Success Operate successfully.
*/
status_t USDHC_SetAdmaTableConfig(USDHC_Type *base,
usdhc_adma_config_t *dmaConfig,
usdhc_data_t *dataConfig,
uint32_t flags)
{
assert(NULL != dmaConfig);
assert((NULL != dmaConfig->admaTable) &&
(((USDHC_ADMA_TABLE_ADDRESS_ALIGN - 1U) & (uint32_t)dmaConfig->admaTable) == 0UL));
assert(NULL != dataConfig);
status_t error = kStatus_Fail;
uint32_t bootDummyOffset =
dataConfig->dataType == (uint32_t)kUSDHC_TransferDataBootcontinous ? sizeof(uint32_t) : 0UL;
const uint32_t *data = (const uint32_t *)USDHC_ADDR_CPU_2_DMA((uint32_t)(
(uint32_t)((dataConfig->rxData == NULL) ? dataConfig->txData : dataConfig->rxData) + bootDummyOffset));
uint32_t blockSize = dataConfig->blockSize * dataConfig->blockCount - bootDummyOffset;
#if FSL_FEATURE_USDHC_HAS_EXT_DMA
if (dmaConfig->dmaMode == kUSDHC_ExternalDMA)
{
/* enable the external DMA */
base->VEND_SPEC |= USDHC_VEND_SPEC_EXT_DMA_EN_MASK;
}
else
#endif
if (dmaConfig->dmaMode == kUSDHC_DmaModeSimple)
{
error = kStatus_Success;
}
else if (dmaConfig->dmaMode == kUSDHC_DmaModeAdma1)
{
error = USDHC_SetADMA1Descriptor(dmaConfig->admaTable, dmaConfig->admaTableWords, data, blockSize, flags);
}
/* ADMA2 */
else
{
error = USDHC_SetADMA2Descriptor(dmaConfig->admaTable, dmaConfig->admaTableWords, data, blockSize, flags);
}
/* for internal dma, internal DMA configurations should not update the configurations when continous transfer the
* boot data, only the DMA descriptor need update */
if ((dmaConfig->dmaMode != kUSDHC_ExternalDMA) && (error == kStatus_Success) &&
(dataConfig->dataType != (uint32_t)kUSDHC_TransferDataBootcontinous))
{
error = USDHC_SetInternalDmaConfig(base, dmaConfig, data, dataConfig->enableAutoCommand23);
}
return error;
}
/*!
* brief Transfers the command/data using a blocking method.
*
* This function waits until the command response/data is received or the USDHC encounters an error by polling the
* status
* flag.
* The application must not call this API in multiple threads at the same time. Because of that this API doesn't support
* the re-entry mechanism.
*
* note There is no need to call the API 'USDHC_TransferCreateHandle' when calling this API.
*
* param base USDHC peripheral base address.
* param adma configuration
* param transfer Transfer content.
* retval kStatus_InvalidArgument Argument is invalid.
* retval kStatus_USDHC_PrepareAdmaDescriptorFailed Prepare ADMA descriptor failed.
* retval kStatus_USDHC_SendCommandFailed Send command failed.
* retval kStatus_USDHC_TransferDataFailed Transfer data failed.
* retval kStatus_Success Operate successfully.
*/
status_t USDHC_TransferBlocking(USDHC_Type *base, usdhc_adma_config_t *dmaConfig, usdhc_transfer_t *transfer)
{
assert(transfer != NULL);
status_t error = kStatus_Fail;
usdhc_command_t *command = transfer->command;
usdhc_data_t *data = transfer->data;
bool enDMA = true;
bool executeTuning = ((data == NULL) ? false : data->dataType == (uint32_t)kUSDHC_TransferDataTuning);
uint32_t transferFlags = (uint32_t)kUSDHC_CommandOnly;
size_t blockSize = 0U;
size_t blockCount = 0U;
#if defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE)
/*check re-tuning request*/
if ((USDHC_GetInterruptStatusFlags(base) & (uint32_t)kUSDHC_ReTuningEventFlag) != 0UL)
{
USDHC_ClearInterruptStatusFlags(base, kUSDHC_ReTuningEventFlag);
return kStatus_USDHC_ReTuningRequest;
}
#endif
if (data != NULL)
{
/* Update ADMA descriptor table according to different DMA mode(no DMA, ADMA1, ADMA2).*/
if ((dmaConfig != NULL) && (!executeTuning))
{
error = USDHC_SetAdmaTableConfig(base, dmaConfig, data,
(uint32_t)(IS_USDHC_FLAG_SET(data->dataType, kUSDHC_TransferDataBoot) ?
kUSDHC_AdmaDescriptorMultipleFlag :
kUSDHC_AdmaDescriptorSingleFlag));
}
blockSize = data->blockSize;
blockCount = data->blockCount;
transferFlags = data->enableAutoCommand12 ? (uint32_t)kUSDHC_DataWithAutoCmd12 : 0U;
transferFlags |= data->enableAutoCommand23 ? (uint32_t)kUSDHC_DataWithAutoCmd23 : 0U;
transferFlags |= data->txData != NULL ? (uint32_t)kUSDHC_CommandAndTxData : (uint32_t)kUSDHC_CommandAndRxData;
transferFlags |= data->dataType == (uint8_t)kUSDHC_TransferDataBoot ? (uint32_t)kUSDHC_BootData : 0U;
transferFlags |=
data->dataType == (uint8_t)kUSDHC_TransferDataBootcontinous ? (uint32_t)kUSDHC_BootDataContinuous : 0U;
command->flags |= (uint32_t)kUSDHC_DataPresentFlag;
}
/* if the DMA desciptor configure fail or not needed , disable it */
if (error != kStatus_Success)
{
enDMA = false;
/* disable DMA, using polling mode in this situation */
USDHC_EnableInternalDMA(base, false);
}
#if defined(FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) && FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL
else
{
if (data->txData != NULL)
{
/* clear the DCACHE */
DCACHE_CleanByRange((uint32_t)data->txData, (data->blockSize) * (data->blockCount));
}
else
{
/* clear the DCACHE */
DCACHE_CleanInvalidateByRange((uint32_t)data->rxData, (data->blockSize) * (data->blockCount));
}
}
#endif
/* config the data transfer parameter */
error = USDHC_SetTransferConfig(base, transferFlags, blockSize, blockCount);
if (error != kStatus_Success)
{
return error;
}
/* send command first */
USDHC_SendCommand(base, command);
/* wait command done */
error =
USDHC_WaitCommandDone(base, command, (data == NULL) || (data->dataType == (uint32_t)kUSDHC_TransferDataNormal));
if (kStatus_Success != error)
{
return kStatus_USDHC_SendCommandFailed;
}
/* wait transfer data finsih */
if (data != NULL)
{
error = USDHC_TransferDataBlocking(base, data, enDMA);
if (kStatus_Success != error)
{
return error;
}
}
return kStatus_Success;
}
#if (defined FSL_USDHC_ENABLE_SCATTER_GATHER_TRANSFER) && FSL_USDHC_ENABLE_SCATTER_GATHER_TRANSFER
static status_t USDHC_SetScatterGatherAdmaTableConfig(USDHC_Type *base,
usdhc_adma_config_t *dmaConfig,
usdhc_scatter_gather_data_t *dataConfig,
uint32_t *totalTransferSize)
{
assert(NULL != dmaConfig);
assert((NULL != dmaConfig->admaTable) &&
(((USDHC_ADMA_TABLE_ADDRESS_ALIGN - 1U) & (uint32_t)dmaConfig->admaTable) == 0UL));
assert(NULL != dataConfig);
status_t error = kStatus_Fail;
uint32_t *admaDesBuffer = dmaConfig->admaTable;
uint32_t admaDesLen = dmaConfig->admaTableWords;
usdhc_scatter_gather_data_list_t *sgDataList = &dataConfig->sgData;
uint32_t oneDescriptorMaxTransferSize = dmaConfig->dmaMode == kUSDHC_DmaModeAdma1 ?
USDHC_ADMA1_DESCRIPTOR_MAX_LENGTH_PER_ENTRY :
USDHC_ADMA2_DESCRIPTOR_MAX_LENGTH_PER_ENTRY;
uint32_t miniEntries = 0U;
while (sgDataList != NULL)
{
if (dmaConfig->dmaMode == kUSDHC_DmaModeAdma1)
{
error = USDHC_SetADMA1Descriptor(admaDesBuffer, admaDesLen, sgDataList->dataAddr, sgDataList->dataSize, 0U);
}
/* ADMA2 */
else
{
error = USDHC_SetADMA2Descriptor(admaDesBuffer, admaDesLen, sgDataList->dataAddr, sgDataList->dataSize, 0U);
}
if (error != kStatus_Success)
{
return kStatus_USDHC_PrepareAdmaDescriptorFailed;
}
#if defined(FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) && FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL
if (dataConfig->dataDirection == kUSDHC_TransferDirectionSend)
{
/* clear the DCACHE */
DCACHE_CleanByRange((uint32_t)sgDataList->dataAddr, sgDataList->dataSize);
}
else
{
/* clear the DCACHE */
DCACHE_CleanInvalidateByRange((uint32_t)sgDataList->dataAddr, sgDataList->dataSize);
}
#endif
*totalTransferSize += sgDataList->dataSize;
if (sgDataList->dataList != NULL)
{
if ((sgDataList->dataSize % oneDescriptorMaxTransferSize) == 0UL)
{
miniEntries = sgDataList->dataSize / oneDescriptorMaxTransferSize;
}
else
{
miniEntries = ((sgDataList->dataSize / oneDescriptorMaxTransferSize) + 1UL);
}
if (dmaConfig->dmaMode == kUSDHC_DmaModeAdma1)
{
admaDesBuffer[miniEntries * 2U - 1U] &= ~kUSDHC_Adma1DescriptorEndFlag;
}
else
{
admaDesBuffer[miniEntries * 2U - 2U] &= ~kUSDHC_Adma2DescriptorEndFlag;
}
admaDesBuffer += miniEntries * 2U;
admaDesLen -= miniEntries * 2U;
}
sgDataList = sgDataList->dataList;
}
base->DS_ADDR = 0UL;
base->ADMA_SYS_ADDR = (uint32_t)(dmaConfig->admaTable);
/* select DMA mode and config the burst length */
base->PROT_CTRL &= ~(USDHC_PROT_CTRL_DMASEL_MASK);
base->PROT_CTRL |= USDHC_PROT_CTRL_DMASEL(dmaConfig->dmaMode);
/* enable DMA */
base->MIX_CTRL |= USDHC_MIX_CTRL_DMAEN_MASK;
return error;
}
/*!
* brief Transfers the command/scatter gather data using an interrupt and an asynchronous method.
*
* This function sends a command and data and returns immediately. It doesn't wait for the transfer to complete or
* to encounter an error. The application must not call this API in multiple threads at the same time. Because of that
* this API doesn't support the re-entry mechanism.
* This function is target for the application would like to have scatter gather buffer to be transferred within one
* read/write request, non scatter gather buffer is support by this function also.
*
* note Call API @ref USDHC_TransferCreateHandle when calling this API.
*
* param base USDHC peripheral base address.
* param handle USDHC handle.
* param dmaConfig adma configurations, must be not NULL, since the function is target for ADMA only.
* param transfer scatter gather transfer content.
*
* retval #kStatus_InvalidArgument Argument is invalid.
* retval #kStatus_USDHC_BusyTransferring Busy transferring.
* retval #kStatus_USDHC_PrepareAdmaDescriptorFailed Prepare ADMA descriptor failed.
* retval #kStatus_Success Operate successfully.
*/
status_t USDHC_TransferScatterGatherADMANonBlocking(USDHC_Type *base,
usdhc_handle_t *handle,
usdhc_adma_config_t *dmaConfig,
usdhc_scatter_gather_transfer_t *transfer)
{
assert(handle != NULL);
assert(transfer != NULL);
assert(dmaConfig != NULL);
status_t error = kStatus_Fail;
usdhc_command_t *command = transfer->command;
uint32_t totalTransferSize = 0U;
uint32_t transferFlags = kUSDHC_CommandOnly;
size_t blockSize = 0U;
size_t blockCount = 0U;
usdhc_scatter_gather_data_t *scatterGatherData = transfer->data;
bool enDMA = false;
/* check data inhibit flag */
if (IS_USDHC_FLAG_SET(base->PRES_STATE, kUSDHC_CommandInhibitFlag))
{
return kStatus_USDHC_BusyTransferring;
}
handle->command = command;
handle->data = scatterGatherData;
/* transferredWords will only be updated in ISR when transfer way is DATAPORT. */
handle->transferredWords = 0UL;
/* Update ADMA descriptor table according to different DMA mode(ADMA1, ADMA2).*/
if (scatterGatherData != NULL)
{
if (scatterGatherData->sgData.dataAddr == NULL)
{
return kStatus_InvalidArgument;
}
if (scatterGatherData->dataType != (uint32_t)kUSDHC_TransferDataTuning)
{
if (USDHC_SetScatterGatherAdmaTableConfig(base, dmaConfig, transfer->data, &totalTransferSize) !=
kStatus_Success)
{
return kStatus_USDHC_PrepareAdmaDescriptorFailed;
}
enDMA = true;
}
blockSize = scatterGatherData->blockSize;
blockCount = totalTransferSize / scatterGatherData->blockSize;
transferFlags = scatterGatherData->enableAutoCommand12 ? kUSDHC_DataWithAutoCmd12 : 0U;
transferFlags |= scatterGatherData->enableAutoCommand23 ? kUSDHC_DataWithAutoCmd23 : 0U;
transferFlags |= scatterGatherData->dataDirection == kUSDHC_TransferDirectionSend ? kUSDHC_CommandAndTxData :
kUSDHC_CommandAndRxData;
command->flags |= kUSDHC_DataPresentFlag;
}
error = USDHC_SetTransferConfig(base, transferFlags, blockSize, blockCount);
if (error != kStatus_Success)
{
return error;
}
/* enable interrupt per transfer request */
if (scatterGatherData != NULL)
{
USDHC_ClearInterruptStatusFlags(
base, (uint32_t)(enDMA == false ? kUSDHC_DataFlag : kUSDHC_DataDMAFlag | kUSDHC_DmaCompleteFlag) |
(uint32_t)kUSDHC_CommandFlag);
USDHC_EnableInterruptSignal(
base, (uint32_t)(enDMA == false ? kUSDHC_DataFlag : kUSDHC_DataDMAFlag | kUSDHC_DmaCompleteFlag) |
(uint32_t)kUSDHC_CommandFlag);
}
else
{
USDHC_ClearInterruptStatusFlags(base, kUSDHC_CommandFlag);
USDHC_EnableInterruptSignal(base, kUSDHC_CommandFlag);
}
/* send command first */
USDHC_SendCommand(base, command);
return kStatus_Success;
}
#else
/*!
* brief Transfers the command/data using an interrupt and an asynchronous method.
*
* This function sends a command and data and returns immediately. It doesn't wait the transfer complete or encounter an
* error.
* The application must not call this API in multiple threads at the same time. Because of that this API doesn't support
* the re-entry mechanism.
*
* note Call the API 'USDHC_TransferCreateHandle' when calling this API.
*
* param base USDHC peripheral base address.
* param handle USDHC handle.
* param adma configuration.
* param transfer Transfer content.
* retval kStatus_InvalidArgument Argument is invalid.
* retval kStatus_USDHC_BusyTransferring Busy transferring.
* retval kStatus_USDHC_PrepareAdmaDescriptorFailed Prepare ADMA descriptor failed.
* retval kStatus_Success Operate successfully.
*/
status_t USDHC_TransferNonBlocking(USDHC_Type *base,
usdhc_handle_t *handle,
usdhc_adma_config_t *dmaConfig,
usdhc_transfer_t *transfer)
{
assert(handle != NULL);
assert(transfer != NULL);
status_t error = kStatus_Fail;
usdhc_command_t *command = transfer->command;
usdhc_data_t *data = transfer->data;
bool executeTuning = ((data == NULL) ? false : data->dataType == (uint32_t)kUSDHC_TransferDataTuning);
bool enDMA = true;
uint32_t transferFlags = (uint32_t)kUSDHC_CommandOnly;
size_t blockSize = 0U;
size_t blockCount = 0U;
#if defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE)
/*check re-tuning request*/
if ((USDHC_GetInterruptStatusFlags(base) & ((uint32_t)kUSDHC_ReTuningEventFlag)) != 0UL)
{
USDHC_ClearInterruptStatusFlags(base, kUSDHC_ReTuningEventFlag);
return kStatus_USDHC_ReTuningRequest;
}
#endif
/* Save command and data into handle before transferring. */
handle->command = command;
handle->data = data;
/* transferredWords will only be updated in ISR when transfer way is DATAPORT. */
handle->transferredWords = 0UL;
if (data != NULL)
{
/* Update ADMA descriptor table according to different DMA mode(no DMA, ADMA1, ADMA2).*/
if ((dmaConfig != NULL) && (!executeTuning))
{
error = USDHC_SetAdmaTableConfig(
base, dmaConfig, data,
(uint32_t)(IS_USDHC_FLAG_SET(data->dataType, (uint32_t)kUSDHC_TransferDataBoot) ?
kUSDHC_AdmaDescriptorMultipleFlag :
kUSDHC_AdmaDescriptorSingleFlag));
}
blockSize = data->blockSize;
blockCount = data->blockCount;
transferFlags = data->enableAutoCommand12 ? (uint32_t)kUSDHC_DataWithAutoCmd12 : 0U;
transferFlags |= data->enableAutoCommand23 ? (uint32_t)kUSDHC_DataWithAutoCmd23 : 0U;
transferFlags |= data->txData != NULL ? (uint32_t)kUSDHC_CommandAndTxData : (uint32_t)kUSDHC_CommandAndRxData;
transferFlags |= data->dataType == (uint8_t)kUSDHC_TransferDataBoot ? (uint32_t)kUSDHC_BootData : 0U;
transferFlags |=
data->dataType == (uint8_t)kUSDHC_TransferDataBootcontinous ? (uint32_t)kUSDHC_BootDataContinuous : 0U;
command->flags |= (uint32_t)kUSDHC_DataPresentFlag;
}
/* if the DMA desciptor configure fail or not needed , disable it */
if (error != kStatus_Success)
{
/* disable DMA, using polling mode in this situation */
USDHC_EnableInternalDMA(base, false);
enDMA = false;
}
#if defined(FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) && FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL
else
{
if (data->txData != NULL)
{
/* clear the DCACHE */
DCACHE_CleanByRange((uint32_t)data->txData, (data->blockSize) * (data->blockCount));
}
else
{
/* clear the DCACHE */
DCACHE_CleanInvalidateByRange((uint32_t)data->rxData, (data->blockSize) * (data->blockCount));
}
}
#endif
/* config the data transfer parameter */
error = USDHC_SetTransferConfig(base, transferFlags, blockSize, blockCount);
if (error != kStatus_Success)
{
return error;
}
/* enable interrupt per transfer request */
if (handle->data != NULL)
{
USDHC_ClearInterruptStatusFlags(
base, (uint32_t)(enDMA == false ? kUSDHC_DataFlag : kUSDHC_DataDMAFlag) | (uint32_t)kUSDHC_CommandFlag |
(uint32_t)(data->dataType == (uint8_t)kUSDHC_TransferDataBootcontinous ?
(uint32_t)kUSDHC_DmaCompleteFlag :
0U));
USDHC_EnableInterruptSignal(base, (uint32_t)(enDMA == false ? kUSDHC_DataFlag : kUSDHC_DataDMAFlag) |
(uint32_t)kUSDHC_CommandFlag |
(uint32_t)(data->dataType == (uint8_t)kUSDHC_TransferDataBootcontinous ?
(uint32_t)kUSDHC_DmaCompleteFlag :
0U));
}
else
{
USDHC_ClearInterruptStatusFlags(base, kUSDHC_CommandFlag);
USDHC_EnableInterruptSignal(base, kUSDHC_CommandFlag);
}
/* send command first */
USDHC_SendCommand(base, command);
return kStatus_Success;
}
#endif
#if defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE)
/*!
* brief manual tuning trigger or abort
* User should handle the tuning cmd and find the boundary of the delay
* then calucate a average value which will be config to the CLK_TUNE_CTRL_STATUS
* This function should called before USDHC_AdjustDelayforSDR104 function
* param base USDHC peripheral base address.
* param tuning enable flag
*/
void USDHC_EnableManualTuning(USDHC_Type *base, bool enable)
{
if (enable)
{
/* make sure std_tun_en bit is clear */
base->TUNING_CTRL &= ~USDHC_TUNING_CTRL_STD_TUNING_EN_MASK;
/* disable auto tuning here */
base->MIX_CTRL &= ~USDHC_MIX_CTRL_AUTO_TUNE_EN_MASK;
/* execute tuning for SDR104 mode */
base->MIX_CTRL |= USDHC_MIX_CTRL_EXE_TUNE_MASK | USDHC_MIX_CTRL_SMP_CLK_SEL_MASK;
}
else
{ /* abort the tuning */
base->MIX_CTRL &= ~USDHC_MIX_CTRL_EXE_TUNE_MASK;
}
}
/*!
* brief the SDR104 mode delay setting adjust
* This function should called after USDHC_ManualTuningForSDR104
* param base USDHC peripheral base address.
* param delay setting configuration
* retval kStatus_Fail config the delay setting fail
* retval kStatus_Success config the delay setting success
*/
status_t USDHC_AdjustDelayForManualTuning(USDHC_Type *base, uint32_t delay)
{
uint32_t clkTuneCtrl = 0UL;
clkTuneCtrl = base->CLK_TUNE_CTRL_STATUS;
clkTuneCtrl &= ~USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_PRE_MASK;
clkTuneCtrl |= USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_PRE(delay);
/* load the delay setting */
base->CLK_TUNE_CTRL_STATUS = clkTuneCtrl;
/* check delat setting error */
if (IS_USDHC_FLAG_SET(base->CLK_TUNE_CTRL_STATUS,
USDHC_CLK_TUNE_CTRL_STATUS_PRE_ERR_MASK | USDHC_CLK_TUNE_CTRL_STATUS_NXT_ERR_MASK))
{
return kStatus_Fail;
}
return kStatus_Success;
}
/*!
* brief The tuning delay cell setting.
*
* param base USDHC peripheral base address.
* param preDelay Set the number of delay cells on the feedback clock between the feedback clock and CLK_PRE.
* param outDelay Set the number of delay cells on the feedback clock between CLK_PRE and CLK_OUT.
* param postDelay Set the number of delay cells on the feedback clock between CLK_OUT and CLK_POST.
* retval kStatus_Fail config the delay setting fail
* retval kStatus_Success config the delay setting success
*/
status_t USDHC_SetTuningDelay(USDHC_Type *base, uint32_t preDelay, uint32_t outDelay, uint32_t postDelay)
{
assert(preDelay <=
(USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_PRE_MASK >> USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_PRE_SHIFT));
assert(outDelay <=
(USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_OUT_MASK >> USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_OUT_SHIFT));
assert(postDelay <=
(USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_POST_MASK >> USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_POST_SHIFT));
uint32_t clkTuneCtrl = 0UL;
clkTuneCtrl = base->CLK_TUNE_CTRL_STATUS;
clkTuneCtrl &=
~(USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_PRE_MASK | USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_OUT_MASK |
USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_POST_MASK);
clkTuneCtrl |= USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_PRE(preDelay) |
USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_OUT(outDelay) |
USDHC_CLK_TUNE_CTRL_STATUS_DLY_CELL_SET_POST(postDelay);
/* load the delay setting */
base->CLK_TUNE_CTRL_STATUS = clkTuneCtrl;
/* check delat setting error */
if (IS_USDHC_FLAG_SET(base->CLK_TUNE_CTRL_STATUS,
USDHC_CLK_TUNE_CTRL_STATUS_PRE_ERR_MASK | USDHC_CLK_TUNE_CTRL_STATUS_NXT_ERR_MASK))
{
return kStatus_Fail;
}
return kStatus_Success;
}
/*!
* brief the enable standard tuning function
* The standard tuning window and tuning counter use the default config
* tuning cmd is send by the software, user need to check the tuning result
* can be used for SDR50,SDR104,HS200 mode tuning
* param base USDHC peripheral base address.
* param tuning start tap
* param tuning step
* param enable/disable flag
*/
void USDHC_EnableStandardTuning(USDHC_Type *base, uint32_t tuningStartTap, uint32_t step, bool enable)
{
uint32_t tuningCtrl = 0UL;
if (enable)
{
/* feedback clock */
base->MIX_CTRL |= USDHC_MIX_CTRL_FBCLK_SEL_MASK;
/* config tuning start and step */
tuningCtrl = base->TUNING_CTRL;
tuningCtrl &= ~(USDHC_TUNING_CTRL_TUNING_START_TAP_MASK | USDHC_TUNING_CTRL_TUNING_STEP_MASK);
tuningCtrl |= (USDHC_TUNING_CTRL_TUNING_START_TAP(tuningStartTap) | USDHC_TUNING_CTRL_TUNING_STEP(step) |
USDHC_TUNING_CTRL_STD_TUNING_EN_MASK);
base->TUNING_CTRL = tuningCtrl;
/* excute tuning */
base->AUTOCMD12_ERR_STATUS |=
(USDHC_AUTOCMD12_ERR_STATUS_EXECUTE_TUNING_MASK | USDHC_AUTOCMD12_ERR_STATUS_SMP_CLK_SEL_MASK);
}
else
{
/* disable the standard tuning */
base->TUNING_CTRL &= ~USDHC_TUNING_CTRL_STD_TUNING_EN_MASK;
/* clear excute tuning */
base->AUTOCMD12_ERR_STATUS &=
~(USDHC_AUTOCMD12_ERR_STATUS_EXECUTE_TUNING_MASK | USDHC_AUTOCMD12_ERR_STATUS_SMP_CLK_SEL_MASK);
}
}
#if FSL_FEATURE_USDHC_HAS_HS400_MODE
/*!
* brief config the strobe DLL delay target and update interval
*
* param base USDHC peripheral base address.
* param delayTarget delay target
* param updateInterval update interval
*/
void USDHC_ConfigStrobeDLL(USDHC_Type *base, uint32_t delayTarget, uint32_t updateInterval)
{
assert(delayTarget <= (USDHC_STROBE_DLL_CTRL_STROBE_DLL_CTRL_SLV_DLY_TARGET_MASK >>
USDHC_STROBE_DLL_CTRL_STROBE_DLL_CTRL_SLV_DLY_TARGET_SHIFT));
/* reset strobe dll firstly */
base->STROBE_DLL_CTRL |= USDHC_STROBE_DLL_CTRL_STROBE_DLL_CTRL_RESET_MASK;
/* clear reset and other register fields */
base->STROBE_DLL_CTRL = 0;
/* configure the DELAY target and update interval */
base->STROBE_DLL_CTRL |= USDHC_STROBE_DLL_CTRL_STROBE_DLL_CTRL_ENABLE_MASK |
USDHC_STROBE_DLL_CTRL_STROBE_DLL_CTRL_SLV_UPDATE_INT(updateInterval) |
USDHC_STROBE_DLL_CTRL_STROBE_DLL_CTRL_SLV_DLY_TARGET(delayTarget);
while (
(USDHC_GetStrobeDLLStatus(base) & (USDHC_STROBE_DLL_STATUS_STROBE_DLL_STS_SLV_LOCK_MASK |
USDHC_STROBE_DLL_STATUS_STROBE_DLL_STS_REF_LOCK_MASK)) !=
((USDHC_STROBE_DLL_STATUS_STROBE_DLL_STS_SLV_LOCK_MASK | USDHC_STROBE_DLL_STATUS_STROBE_DLL_STS_REF_LOCK_MASK)))
{
}
}
#endif
/*!
* brief the auto tuning enbale for CMD/DATA line
*
* param base USDHC peripheral base address.
*/
void USDHC_EnableAutoTuningForCmdAndData(USDHC_Type *base)
{
uint32_t busWidth = (base->PROT_CTRL & USDHC_PROT_CTRL_DTW_MASK) >> USDHC_PROT_CTRL_DTW_SHIFT;
base->VEND_SPEC2 |= USDHC_VEND_SPEC2_TUNING_CMD_EN_MASK;
/* 1bit data width */
if (busWidth == 0UL)
{
base->VEND_SPEC2 &= ~USDHC_VEND_SPEC2_TUNING_8bit_EN_MASK;
base->VEND_SPEC2 |= USDHC_VEND_SPEC2_TUNING_1bit_EN_MASK;
}
/* 4bit data width */
else if (busWidth == 1UL)
{
base->VEND_SPEC2 &= ~USDHC_VEND_SPEC2_TUNING_8bit_EN_MASK;
base->VEND_SPEC2 &= ~USDHC_VEND_SPEC2_TUNING_1bit_EN_MASK;
}
/* 8bit data width */
else
{
base->VEND_SPEC2 |= USDHC_VEND_SPEC2_TUNING_8bit_EN_MASK;
base->VEND_SPEC2 &= ~USDHC_VEND_SPEC2_TUNING_1bit_EN_MASK;
}
}
#endif /* FSL_FEATURE_USDHC_HAS_SDR50_MODE */
static void USDHC_TransferHandleCardDetect(USDHC_Type *base, usdhc_handle_t *handle, uint32_t interruptFlags)
{
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_CardInsertionFlag))
{
if (handle->callback.CardInserted != NULL)
{
handle->callback.CardInserted(base, handle->userData);
}
}
else
{
if (handle->callback.CardRemoved != NULL)
{
handle->callback.CardRemoved(base, handle->userData);
}
}
}
static void USDHC_TransferHandleCommand(USDHC_Type *base, usdhc_handle_t *handle, uint32_t interruptFlags)
{
assert(handle->command != NULL);
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_CommandErrorFlag))
{
if (handle->callback.TransferComplete != NULL)
{
handle->callback.TransferComplete(base, handle, kStatus_USDHC_SendCommandFailed, handle->userData);
}
}
else
{
/* Receive response */
if (kStatus_Success != USDHC_ReceiveCommandResponse(base, handle->command))
{
if (handle->callback.TransferComplete != NULL)
{
handle->callback.TransferComplete(base, handle, kStatus_USDHC_SendCommandFailed, handle->userData);
}
}
else
{
if (handle->callback.TransferComplete != NULL)
{
handle->callback.TransferComplete(base, handle, kStatus_USDHC_SendCommandSuccess, handle->userData);
}
}
}
/* disable interrupt signal and reset command pointer */
USDHC_DisableInterruptSignal(base, kUSDHC_CommandFlag);
handle->command = NULL;
}
#if (defined FSL_USDHC_ENABLE_SCATTER_GATHER_TRANSFER) && FSL_USDHC_ENABLE_SCATTER_GATHER_TRANSFER
static void USDHC_TransferHandleData(USDHC_Type *base, usdhc_handle_t *handle, uint32_t interruptFlags)
{
assert(handle->data != NULL);
status_t transferStatus = kStatus_USDHC_BusyTransferring;
if ((!(handle->data->enableIgnoreError)) &&
(IS_USDHC_FLAG_SET(interruptFlags, (uint32_t)kUSDHC_DataErrorFlag | (uint32_t)kUSDHC_DmaErrorFlag)))
{
transferStatus = kStatus_USDHC_TransferDataFailed;
}
else
{
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_BufferReadReadyFlag))
{
/* std tuning process only need to wait BRR */
if (handle->data->dataType == (uint32_t)kUSDHC_TransferDataTuning)
{
transferStatus = kStatus_USDHC_TransferDataComplete;
}
}
else
{
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_DmaCompleteFlag))
{
transferStatus = kStatus_USDHC_TransferDMAComplete;
}
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_DataCompleteFlag))
{
transferStatus = kStatus_USDHC_TransferDataComplete;
#if defined(FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) && FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL
if (handle->data->dataDirection == kUSDHC_TransferDirectionReceive)
{
usdhc_scatter_gather_data_list_t *sgDataList = &handle->data->sgData;
while (sgDataList != NULL)
{
DCACHE_InvalidateByRange((uint32_t)sgDataList->dataAddr, sgDataList->dataSize);
sgDataList = sgDataList->dataList;
}
}
#endif
}
}
}
if ((handle->callback.TransferComplete != NULL) && (transferStatus != kStatus_USDHC_BusyTransferring))
{
handle->callback.TransferComplete(base, handle, transferStatus, handle->userData);
USDHC_DisableInterruptSignal(
base, (uint32_t)kUSDHC_DataFlag | (uint32_t)kUSDHC_DataDMAFlag | (uint32_t)kUSDHC_DmaCompleteFlag);
handle->data = NULL;
}
}
#else
static void USDHC_TransferHandleData(USDHC_Type *base, usdhc_handle_t *handle, uint32_t interruptFlags)
{
assert(handle->data != NULL);
status_t transferStatus = kStatus_USDHC_BusyTransferring;
uint32_t transferredWords = handle->transferredWords;
if ((!(handle->data->enableIgnoreError)) &&
(IS_USDHC_FLAG_SET(interruptFlags, (uint32_t)kUSDHC_DataErrorFlag | (uint32_t)kUSDHC_DmaErrorFlag)))
{
transferStatus = kStatus_USDHC_TransferDataFailed;
}
else
{
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_BufferReadReadyFlag))
{
/* std tuning process only need to wait BRR */
if (handle->data->dataType == (uint32_t)kUSDHC_TransferDataTuning)
{
transferStatus = kStatus_USDHC_TransferDataComplete;
}
else
{
handle->transferredWords = USDHC_ReadDataPort(base, handle->data, transferredWords);
}
}
else if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_BufferWriteReadyFlag))
{
handle->transferredWords = USDHC_WriteDataPort(base, handle->data, transferredWords);
}
else
{
if ((IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_DmaCompleteFlag)) &&
(handle->data->dataType == (uint32_t)kUSDHC_TransferDataBootcontinous))
{
*(handle->data->rxData) = s_usdhcBootDummy;
}
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_DataCompleteFlag))
{
transferStatus = kStatus_USDHC_TransferDataComplete;
#if defined(FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) && FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL
if (handle->data->rxData != NULL)
{
DCACHE_InvalidateByRange((uint32_t)(handle->data->rxData),
(handle->data->blockSize) * (handle->data->blockCount));
}
#endif
}
}
}
if ((handle->callback.TransferComplete != NULL) && (transferStatus != kStatus_USDHC_BusyTransferring))
{
handle->callback.TransferComplete(base, handle, transferStatus, handle->userData);
USDHC_DisableInterruptSignal(base, (uint32_t)kUSDHC_DataFlag | (uint32_t)kUSDHC_DataDMAFlag);
handle->data = NULL;
}
}
#endif
static void USDHC_TransferHandleSdioInterrupt(USDHC_Type *base, usdhc_handle_t *handle)
{
if (handle->callback.SdioInterrupt != NULL)
{
handle->callback.SdioInterrupt(base, handle->userData);
}
}
#if defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE)
static void USDHC_TransferHandleReTuning(USDHC_Type *base, usdhc_handle_t *handle, uint32_t interruptFlags)
{
assert(handle->callback.ReTuning != NULL);
/* retuning request */
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_TuningErrorFlag))
{
handle->callback.ReTuning(base, handle->userData); /* retuning fail */
}
}
#endif
static void USDHC_TransferHandleBlockGap(USDHC_Type *base, usdhc_handle_t *handle)
{
if (handle->callback.BlockGap != NULL)
{
handle->callback.BlockGap(base, handle->userData);
}
}
/*!
* brief Creates the USDHC handle.
*
* param base USDHC peripheral base address.
* param handle USDHC handle pointer.
* param callback Structure pointer to contain all callback functions.
* param userData Callback function parameter.
*/
void USDHC_TransferCreateHandle(USDHC_Type *base,
usdhc_handle_t *handle,
const usdhc_transfer_callback_t *callback,
void *userData)
{
assert(handle != NULL);
assert(callback != NULL);
/* Zero the handle. */
(void)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.BlockGap = callback->BlockGap;
handle->callback.TransferComplete = callback->TransferComplete;
handle->callback.ReTuning = callback->ReTuning;
handle->userData = userData;
/* Save the handle in global variables to support the double weak mechanism. */
s_usdhcHandle[USDHC_GetInstance(base)] = handle;
/* save IRQ handler */
s_usdhcIsr = USDHC_TransferHandleIRQ;
(void)EnableIRQ(s_usdhcIRQ[USDHC_GetInstance(base)]);
}
/*!
* brief IRQ handler for the USDHC.
*
* This function deals with the IRQs on the given host controller.
*
* param base USDHC peripheral base address.
* param handle USDHC handle.
*/
void USDHC_TransferHandleIRQ(USDHC_Type *base, usdhc_handle_t *handle)
{
assert(handle != NULL);
uint32_t interruptFlags;
interruptFlags = USDHC_GetEnabledInterruptStatusFlags(base);
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_CardDetectFlag))
{
USDHC_TransferHandleCardDetect(base, handle, interruptFlags);
}
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_CommandFlag))
{
USDHC_TransferHandleCommand(base, handle, interruptFlags);
}
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_DataFlag))
{
USDHC_TransferHandleData(base, handle, interruptFlags);
}
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_CardInterruptFlag))
{
USDHC_TransferHandleSdioInterrupt(base, handle);
}
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_BlockGapEventFlag))
{
USDHC_TransferHandleBlockGap(base, handle);
}
#if defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE)
if (IS_USDHC_FLAG_SET(interruptFlags, kUSDHC_SDR104TuningFlag))
{
USDHC_TransferHandleReTuning(base, handle, interruptFlags);
}
#endif
USDHC_ClearInterruptStatusFlags(base, interruptFlags);
}
#ifdef USDHC0
void USDHC0_DriverIRQHandler(void);
void USDHC0_DriverIRQHandler(void)
{
s_usdhcIsr(s_usdhcBase[0U], s_usdhcHandle[0U]);
SDK_ISR_EXIT_BARRIER;
}
#endif
#ifdef USDHC1
void USDHC1_DriverIRQHandler(void);
void USDHC1_DriverIRQHandler(void)
{
s_usdhcIsr(s_usdhcBase[1U], s_usdhcHandle[1U]);
SDK_ISR_EXIT_BARRIER;
}
#endif
#ifdef USDHC2
void USDHC2_DriverIRQHandler(void);
void USDHC2_DriverIRQHandler(void)
{
s_usdhcIsr(s_usdhcBase[2U], s_usdhcHandle[2U]);
SDK_ISR_EXIT_BARRIER;
}
#endif
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