/* * The Clear BSD License * Copyright (c) 2016, Freescale Semiconductor, Inc. * Copyright 2016-2017 NXP * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted (subject to the limitations in the disclaimer below) 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 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. * * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "fsl_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 */ /******************************************************************************* * 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)) /* Typedef for interrupt handler. */ typedef void (*usdhc_isr_t)(USDHC_Type *base, usdhc_handle_t *handle); /*! @brief Dummy data buffer for mmc boot mode */ AT_NONCACHEABLE_SECTION_ALIGN(uint32_t s_usdhcBootDummy, USDHC_ADMA2_ADDRESS_ALIGN); /******************************************************************************* * Prototypes ******************************************************************************/ /*! * @brief Get the instance. * * @param base USDHC peripheral base address. * @return Instance number. */ static uint32_t USDHC_GetInstance(USDHC_Type *base); /*! * @brief Set transfer interrupt. * * @param base USDHC peripheral base address. * @param usingInterruptSignal True to use IRQ signal. */ static void USDHC_SetTransferInterrupt(USDHC_Type *base, bool usingInterruptSignal); /*! * @brief Start transfer according to current transfer state * * @param base USDHC peripheral base address. * @param data Data to be transferred. * @param flag data present flag */ static status_t USDHC_SetDataTransferConfig(USDHC_Type *base, usdhc_data_t *data, uint32_t *dataPresentFlag); /*! * @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 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); /*! * @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); /*! * @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); /******************************************************************************* * 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)] = {NULL}; /*! @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 */ /* USDHC ISR for transactional APIs. */ static usdhc_isr_t s_usdhcIsr; /******************************************************************************* * 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 void USDHC_SetTransferInterrupt(USDHC_Type *base, bool usingInterruptSignal) { uint32_t interruptEnabled; /* The Interrupt status flags to be enabled */ /* Disable all interrupts */ USDHC_DisableInterruptStatus(base, (uint32_t)kUSDHC_AllInterruptFlags); USDHC_DisableInterruptSignal(base, (uint32_t)kUSDHC_AllInterruptFlags); DisableIRQ(s_usdhcIRQ[USDHC_GetInstance(base)]); interruptEnabled = (kUSDHC_CommandFlag | kUSDHC_CardInsertionFlag | kUSDHC_DataFlag | kUSDHC_CardRemovalFlag | kUSDHC_SDR104TuningFlag | kUSDHC_BlockGapEventFlag); USDHC_EnableInterruptStatus(base, interruptEnabled); if (usingInterruptSignal) { USDHC_EnableInterruptSignal(base, interruptEnabled); } } static status_t USDHC_SetDataTransferConfig(USDHC_Type *base, usdhc_data_t *data, uint32_t *dataPresentFlag) { uint32_t mixCtrl = base->MIX_CTRL; if (data != NULL) { /* if transfer boot continous, only need set the CREQ bit, leave others as it is */ if (data->dataType == kUSDHC_TransferDataBootcontinous) { /* 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 (base->PRES_STATE & kUSDHC_DataInhibitFlag) { return kStatus_USDHC_BusyTransferring; } /* check transfer block count */ if ((data->blockCount > USDHC_MAX_BLOCK_COUNT) || ((data->txData == NULL) && (data->rxData == NULL))) { 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 (data->rxData) { mixCtrl |= USDHC_MIX_CTRL_DTDSEL_MASK; } if (data->blockCount > 1U) { mixCtrl |= USDHC_MIX_CTRL_MSBSEL_MASK | USDHC_MIX_CTRL_BCEN_MASK; /* auto command 12 */ if (data->enableAutoCommand12) { mixCtrl |= USDHC_MIX_CTRL_AC12EN_MASK; } } /* auto command 23, auto send set block count cmd before multiple read/write */ if ((data->enableAutoCommand23)) { 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 = data->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 (data->dataType != kUSDHC_TransferDataBoot) { /* 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(data->blockSize) | USDHC_BLK_ATT_BLKCNT(data->blockCount))); } else { mixCtrl |= USDHC_MIX_CTRL_MSBSEL_MASK | USDHC_MIX_CTRL_BCEN_MASK; base->PROT_CTRL |= USDHC_PROT_CTRL_RD_DONE_NO_8CLK_MASK; } /* data present flag */ *dataPresentFlag |= kUSDHC_DataPresentFlag; } else { /* clear data flags */ mixCtrl &= ~(USDHC_MIX_CTRL_MSBSEL_MASK | USDHC_MIX_CTRL_BCEN_MASK | USDHC_MIX_CTRL_DTDSEL_MASK | USDHC_MIX_CTRL_AC12EN_MASK); if (base->PRES_STATE & kUSDHC_CommandInhibitFlag) { return kStatus_USDHC_BusyTransferring; } } /* config the mix parameter */ base->MIX_CTRL = mixCtrl; return kStatus_Success; } static status_t USDHC_ReceiveCommandResponse(USDHC_Type *base, usdhc_command_t *command) { uint32_t i; if (command->responseType != kCARD_ResponseTypeNone) { command->response[0U] = base->CMD_RSP0; if (command->responseType == kCARD_ResponseTypeR2) { command->response[1U] = base->CMD_RSP1; command->response[2U] = base->CMD_RSP2; command->response[3U] = base->CMD_RSP3; i = 4U; /* R3-R2-R1-R0(lowest 8 bit is invalid bit) has the same format as R2 format in SD specification document after removed internal CRC7 and end bit. */ do { command->response[i - 1U] <<= 8U; if (i > 1U) { command->response[i - 1U] |= ((command->response[i - 2U] & 0xFF000000U) >> 24U); } } while (i--); } } /* 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 (!(interruptStatus & (kUSDHC_BufferReadReadyFlag | kUSDHC_DataErrorFlag | 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 == kUSDHC_TransferDataTuning) && (interruptStatus & kUSDHC_BufferReadReadyFlag)) { USDHC_ClearInterruptStatusFlags(base, kUSDHC_BufferReadReadyFlag | kUSDHC_TuningPassFlag); return kStatus_Success; } else if ((interruptStatus & kUSDHC_TuningErrorFlag) != 0U) { USDHC_ClearInterruptStatusFlags(base, kUSDHC_TuningErrorFlag); /* if tuning error occur ,return directly */ error = kStatus_USDHC_TuningError; } else if ((interruptStatus & kUSDHC_DataErrorFlag) != 0U) { if (!(data->enableIgnoreError)) { error = kStatus_Fail; } /* clear data error flag */ USDHC_ClearInterruptStatusFlags(base, kUSDHC_DataErrorFlag); } else { } 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 (!(interruptStatus & (kUSDHC_BufferWriteReadyFlag | kUSDHC_DataErrorFlag | kUSDHC_TuningErrorFlag))) { interruptStatus = USDHC_GetInterruptStatusFlags(base); } if ((interruptStatus & kUSDHC_TuningErrorFlag) != 0U) { USDHC_ClearInterruptStatusFlags(base, kUSDHC_TuningErrorFlag); /* if tuning error occur ,return directly */ return kStatus_USDHC_TuningError; } else if ((interruptStatus & kUSDHC_DataErrorFlag) != 0U) { if (!(data->enableIgnoreError)) { error = kStatus_Fail; } /* clear data error flag */ USDHC_ClearInterruptStatusFlags(base, kUSDHC_DataErrorFlag); } else { } 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 (!(interruptStatus & (kUSDHC_DataCompleteFlag | kUSDHC_DataErrorFlag))) { interruptStatus = USDHC_GetInterruptStatusFlags(base); } if ((interruptStatus & kUSDHC_DataErrorFlag) != 0U) { if (!(data->enableIgnoreError)) { error = kStatus_Fail; } } USDHC_ClearInterruptStatusFlags(base, (kUSDHC_DataCompleteFlag | kUSDHC_DataErrorFlag)); return error; } 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 & kUSDHC_CommandInhibitFlag) == 0U) && (command->type != kCARD_CommandTypeEmpty)) { /* Define the flag corresponding to each response type. */ switch (command->responseType) { case kCARD_ResponseTypeNone: break; case kCARD_ResponseTypeR1: /* Response 1 */ case kCARD_ResponseTypeR5: /* Response 5 */ case kCARD_ResponseTypeR6: /* Response 6 */ case kCARD_ResponseTypeR7: /* Response 7 */ flags |= (kUSDHC_ResponseLength48Flag | kUSDHC_EnableCrcCheckFlag | kUSDHC_EnableIndexCheckFlag); break; case kCARD_ResponseTypeR1b: /* Response 1 with busy */ case kCARD_ResponseTypeR5b: /* Response 5 with busy */ flags |= (kUSDHC_ResponseLength48BusyFlag | kUSDHC_EnableCrcCheckFlag | kUSDHC_EnableIndexCheckFlag); break; case kCARD_ResponseTypeR2: /* Response 2 */ flags |= (kUSDHC_ResponseLength136Flag | kUSDHC_EnableCrcCheckFlag); break; case kCARD_ResponseTypeR3: /* Response 3 */ case kCARD_ResponseTypeR4: /* Response 4 */ flags |= (kUSDHC_ResponseLength48Flag); break; default: break; } if (command->type == kCARD_CommandTypeAbort) { flags |= 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 (!(interruptStatus & (kUSDHC_CommandCompleteFlag | kUSDHC_CommandErrorFlag))) { interruptStatus = USDHC_GetInterruptStatusFlags(base); } if ((interruptStatus & kUSDHC_TuningErrorFlag) != 0U) { error = kStatus_USDHC_TuningError; } else if ((interruptStatus & kUSDHC_CommandErrorFlag) != 0U) { error = kStatus_Fail; } else { } /* Receive response when command completes successfully. */ if (error == kStatus_Success) { error = USDHC_ReceiveCommandResponse(base, command); } USDHC_ClearInterruptStatusFlags( base, (kUSDHC_CommandCompleteFlag | kUSDHC_CommandErrorFlag | kUSDHC_TuningErrorFlag)); } 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 (!((interruptStatus & (kUSDHC_DataCompleteFlag | kUSDHC_DataErrorFlag | kUSDHC_DmaErrorFlag | kUSDHC_TuningErrorFlag)))) { interruptStatus = USDHC_GetInterruptStatusFlags(base); } if ((interruptStatus & kUSDHC_TuningErrorFlag) != 0U) { error = kStatus_USDHC_TuningError; } else if (((interruptStatus & (kUSDHC_DataErrorFlag | kUSDHC_DmaErrorFlag)) != 0U)) { if ((!(data->enableIgnoreError)) || (interruptStatus & kUSDHC_DataTimeoutFlag)) { error = kStatus_Fail; } } else { } /* load dummy data */ if ((data->dataType == kUSDHC_TransferDataBootcontinous) && (error == kStatus_Success)) { *(data->rxData) = s_usdhcBootDummy; } USDHC_ClearInterruptStatusFlags(base, (kUSDHC_DataCompleteFlag | kUSDHC_DataErrorFlag | kUSDHC_DmaErrorFlag | kUSDHC_TuningPassFlag | kUSDHC_TuningErrorFlag)); } else { if (data->rxData) { error = USDHC_ReadByDataPortBlocking(base, data); } else { error = USDHC_WriteByDataPortBlocking(base, data); } } return error; } void USDHC_Init(USDHC_Type *base, const usdhc_config_t *config) { assert(config); assert((config->writeWatermarkLevel >= 1U) && (config->writeWatermarkLevel <= 128U)); assert((config->readWatermarkLevel >= 1U) && (config->readWatermarkLevel <= 128U)); assert(config->writeBurstLen <= 16U); uint32_t proctl, sysctl, wml; /* Enable USDHC clock. */ CLOCK_EnableClock(s_usdhcClock[USDHC_GetInstance(base)]); /* Reset USDHC. */ USDHC_Reset(base, kUSDHC_ResetAll, 100U); 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); /* 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)); /* 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); /* Enable interrupt status but doesn't enable interrupt signal. */ USDHC_SetTransferInterrupt(base, false); } void USDHC_Deinit(USDHC_Type *base) { /* Disable clock. */ CLOCK_DisableClock(s_usdhcClock[USDHC_GetInstance(base)]); } 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)); /* Delay some time to wait reset success. */ while ((base->SYS_CTRL & mask) != 0U) { if (timeout == 0U) { break; } timeout--; } return ((!timeout) ? false : true); } void USDHC_GetCapability(USDHC_Type *base, usdhc_capability_t *capability) { assert(capability); 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 = (512U << maxBlockLength); /* Other attributes not in HTCAPBLT register. */ capability->maxBlockCount = USDHC_MAX_BLOCK_COUNT; capability->flags = (htCapability & (kUSDHC_SupportAdmaFlag | kUSDHC_SupportHighSpeedFlag | kUSDHC_SupportDmaFlag | kUSDHC_SupportSuspendResumeFlag | kUSDHC_SupportV330Flag)); capability->flags |= (htCapability & kUSDHC_SupportV300Flag); capability->flags |= (htCapability & kUSDHC_SupportV180Flag); capability->flags |= (htCapability & (kUSDHC_SupportDDR50Flag | kUSDHC_SupportSDR104Flag | kUSDHC_SupportSDR50Flag)); /* USDHC support 4/8 bit data bus width. */ capability->flags |= (kUSDHC_Support4BitFlag | kUSDHC_Support8BitFlag); } uint32_t USDHC_SetSdClock(USDHC_Type *base, uint32_t srcClock_Hz, uint32_t busClock_Hz) { assert(srcClock_Hz != 0U); assert((busClock_Hz != 0U) && (busClock_Hz <= srcClock_Hz)); uint32_t totalDiv = 0U; uint32_t divisor = 0U; uint32_t prescaler = 0U; uint32_t sysctl = 0U; uint32_t nearestFrequency = 0U; /* calucate total divisor first */ if ((totalDiv = srcClock_Hz / busClock_Hz) > (USDHC_MAX_CLKFS * USDHC_MAX_DVS)) { return 0U; } if (totalDiv != 0U) { /* 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) != 0U) || (prescaler == 1U)) { prescaler++; } /* calucate the divisor */ divisor = totalDiv / prescaler; /* fine tuning the divisor until divisor * prescaler >= totalDiv */ while ((divisor * prescaler) < totalDiv) { divisor++; } nearestFrequency = srcClock_Hz / (divisor == 0U ? 1U : divisor) / prescaler; } else { /* in this situation , divsior and SDCLKFS can generate same clock use SDCLKFS*/ if ((USDHC_MAX_DVS % totalDiv) == 0U) { divisor = 0U; prescaler = totalDiv; } else { divisor = (totalDiv / 2U) + 1U; /* make sure the output frequency not bigger than target value */ prescaler = 2U; } nearestFrequency = srcClock_Hz / totalDiv; } } /* in this condition , srcClock_Hz = busClock_Hz, */ else { /* in DDR mode , set SDCLKFS to 0, divisor = 0, actually the totoal divider = 2U */ divisor = 0U; prescaler = 0U; nearestFrequency = srcClock_Hz; } /* calucate the value write to register */ if (divisor != 0U) { USDHC_PREV_DVS(divisor); } /* calucate the value write to register */ if (prescaler != 0U) { USDHC_PREV_CLKFS(prescaler, 1U); } /* 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 (!(base->PRES_STATE & USDHC_PRES_STATE_SDSTB_MASK)) { } return nearestFrequency; } 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 ((base->SYS_CTRL & USDHC_SYS_CTRL_INITA_MASK) == USDHC_SYS_CTRL_INITA_MASK) { if (!timeout) { break; } timeout--; } return ((!timeout) ? false : true); } 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 >>= 1U; } else { base->MIX_CTRL &= ~USDHC_MIX_CTRL_DDR_EN_MASK; if (prescaler == 0U) { prescaler += 1U; } else { prescaler <<= 1U; } } base->SYS_CTRL = (base->SYS_CTRL & (~USDHC_SYS_CTRL_SDCLKFS_MASK)) | USDHC_SYS_CTRL_SDCLKFS(prescaler); } void USDHC_SetMmcBootConfig(USDHC_Type *base, const usdhc_boot_config_t *config) { assert(config); 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; } 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 = 0U, maxEntries = (admaTableWords * sizeof(uint32_t)) / sizeof(usdhc_adma1_descriptor_t); usdhc_adma1_descriptor_t *adma1EntryAddress = (usdhc_adma1_descriptor_t *)(admaTable); uint32_t i, dmaBufferLen = 0U; const uint32_t *data = dataBufferAddr; if (((uint32_t)data % USDHC_ADMA1_ADDRESS_ALIGN) != 0U) { return kStatus_USDHC_DMADataAddrNotAlign; } if (flags == 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) != 0U) { /* 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) == 0U) { miniEntries = dataBytes / USDHC_ADMA1_DESCRIPTOR_MAX_LENGTH_PER_ENTRY; } else { miniEntries = ((dataBytes / USDHC_ADMA1_DESCRIPTOR_MAX_LENGTH_PER_ENTRY) + 1U); } /* ADMA1 needs two descriptors to finish a transfer */ miniEntries <<= 1U; if (miniEntries + startEntries > maxEntries) { return kStatus_OutOfRange; } for (i = startEntries; i < (miniEntries + startEntries); i += 2U) { 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] |= kUSDHC_Adma1DescriptorTypeSetLength; adma1EntryAddress[i + 1U] = (uint32_t)(data); adma1EntryAddress[i + 1U] |= kUSDHC_Adma1DescriptorTypeTransfer; data += dmaBufferLen / sizeof(uint32_t); dataBytes -= dmaBufferLen; } /* the end of the descriptor */ adma1EntryAddress[i - 1U] |= kUSDHC_Adma1DescriptorEndFlag; return kStatus_Success; } 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 = 0U, maxEntries = (admaTableWords * sizeof(uint32_t)) / sizeof(usdhc_adma2_descriptor_t); usdhc_adma2_descriptor_t *adma2EntryAddress = (usdhc_adma2_descriptor_t *)(admaTable); uint32_t i, dmaBufferLen = 0U; const uint32_t *data = dataBufferAddr; if (((uint32_t)data % USDHC_ADMA2_ADDRESS_ALIGN) != 0U) { 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) != 0U) { /* 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) == 0U) { miniEntries = dataBytes / USDHC_ADMA2_DESCRIPTOR_MAX_LENGTH_PER_ENTRY; } else { miniEntries = ((dataBytes / USDHC_ADMA2_DESCRIPTOR_MAX_LENGTH_PER_ENTRY) + 1U); } /* 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 == kUSDHC_AdmaDescriptorMultipleFlag) { for (i = 0U; i < maxEntries; i++) { if ((adma2EntryAddress[i].attribute & kUSDHC_Adma2DescriptorValidFlag) == 0U) { break; } } startEntries = i; /* add one entry for dummy entry */ miniEntries += 1U; } 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 == 0U ? 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 == 0U) ? &s_usdhcBootDummy : data; adma2EntryAddress[i].attribute = (dmaBufferLen << USDHC_ADMA2_DESCRIPTOR_LENGTH_SHIFT); adma2EntryAddress[i].attribute |= (dataBytes == 0U) ? 0U : (kUSDHC_Adma2DescriptorTypeTransfer | kUSDHC_Adma2DescriptorInterruptFlag); data += (dmaBufferLen / sizeof(uint32_t)); if (dataBytes != 0U) { 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 == kUSDHC_AdmaDescriptorMultipleFlag) { adma2EntryAddress[startEntries + 1U].attribute |= kUSDHC_Adma2DescriptorTypeTransfer; } else { /* set the end bit */ adma2EntryAddress[i - 1U].attribute |= kUSDHC_Adma2DescriptorEndFlag; } return kStatus_Success; } status_t USDHC_SetInternalDmaConfig(USDHC_Type *base, usdhc_adma_config_t *dmaConfig, const uint32_t *dataAddr, bool enAutoCmd23) { assert(dmaConfig); assert(dataAddr); #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) != 0U) { 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 = (uint32_t)dataAddr; } else { base->DS_ADDR = (uint32_t)dataAddr; } } else { /* When use ADMA, disable simple DMA */ base->DS_ADDR = 0U; base->ADMA_SYS_ADDR = (uint32_t)(dmaConfig->admaTable); } /* 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); /* enable DMA */ base->MIX_CTRL |= USDHC_MIX_CTRL_DMAEN_MASK; return kStatus_Success; } 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); assert(NULL != dataConfig); status_t error = kStatus_Fail; uint32_t bootDummyOffset = dataConfig->dataType == kUSDHC_TransferDataBootcontinous ? sizeof(uint32_t) : 0U; const uint32_t *data = (const uint32_t *)((uint32_t)((dataConfig->rxData == NULL) ? dataConfig->txData : dataConfig->rxData) + bootDummyOffset); uint32_t blockSize = dataConfig->blockSize * dataConfig->blockCount - bootDummyOffset; switch (dmaConfig->dmaMode) { #if FSL_FEATURE_USDHC_HAS_EXT_DMA case kUSDHC_ExternalDMA: /* enable the external DMA */ base->VEND_SPEC |= USDHC_VEND_SPEC_EXT_DMA_EN_MASK; break; #endif case kUSDHC_DmaModeSimple: error = kStatus_Success; break; case kUSDHC_DmaModeAdma1: error = USDHC_SetADMA1Descriptor(dmaConfig->admaTable, dmaConfig->admaTableWords, data, blockSize, flags); break; case kUSDHC_DmaModeAdma2: error = USDHC_SetADMA2Descriptor(dmaConfig->admaTable, dmaConfig->admaTableWords, data, blockSize, flags); break; default: return kStatus_USDHC_PrepareAdmaDescriptorFailed; } /* 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 != kUSDHC_TransferDataBootcontinous)) { error = USDHC_SetInternalDmaConfig(base, dmaConfig, data, dataConfig->enableAutoCommand23); } return error; } status_t USDHC_TransferBlocking(USDHC_Type *base, usdhc_adma_config_t *dmaConfig, usdhc_transfer_t *transfer) { assert(transfer); 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 == kUSDHC_TransferDataTuning); /*check re-tuning request*/ if ((USDHC_GetInterruptStatusFlags(base) & kUSDHC_ReTuningEventFlag) != 0U) { USDHC_ClearInterruptStatusFlags(base, kUSDHC_ReTuningEventFlag); return kStatus_USDHC_ReTuningRequest; } /* Update ADMA descriptor table according to different DMA mode(no DMA, ADMA1, ADMA2).*/ if ((data != NULL) && (dmaConfig != NULL) && (!executeTuning)) { error = USDHC_SetAdmaTableConfig(base, dmaConfig, data, (data->dataType & kUSDHC_TransferDataBoot) ? kUSDHC_AdmaDescriptorMultipleFlag : kUSDHC_AdmaDescriptorSingleFlag); } /* 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_SetDataTransferConfig(base, data, &(command->flags)); if (kStatus_Success != error) { return error; } /* send command first */ USDHC_SendCommand(base, command); /* wait command done */ error = USDHC_WaitCommandDone(base, command, (data == NULL) || (data->dataType == kUSDHC_TransferDataNormal)); /* wait transfer data finsih */ if ((data != NULL) && (error == kStatus_Success)) { return USDHC_TransferDataBlocking(base, data, enDMA); } return error; } status_t USDHC_TransferNonBlocking(USDHC_Type *base, usdhc_handle_t *handle, usdhc_adma_config_t *dmaConfig, usdhc_transfer_t *transfer) { assert(handle); assert(transfer); status_t error = kStatus_Fail; usdhc_command_t *command = transfer->command; usdhc_data_t *data = transfer->data; bool executeTuning = ((data == NULL) ? false : data->dataType == kUSDHC_TransferDataTuning); /*check re-tuning request*/ if ((USDHC_GetInterruptStatusFlags(base) & (kUSDHC_ReTuningEventFlag)) != 0U) { USDHC_ClearInterruptStatusFlags(base, kUSDHC_ReTuningEventFlag); return kStatus_USDHC_ReTuningRequest; } /* Save command and data into handle before transferring. */ handle->command = command; handle->data = data; handle->interruptFlags = 0U; /* transferredWords will only be updated in ISR when transfer way is DATAPORT. */ handle->transferredWords = 0U; /* Update ADMA descriptor table according to different DMA mode(no DMA, ADMA1, ADMA2).*/ if ((data != NULL) && (dmaConfig != NULL) && (!executeTuning)) { error = USDHC_SetAdmaTableConfig(base, dmaConfig, data, (data->dataType & kUSDHC_TransferDataBoot) ? kUSDHC_AdmaDescriptorMultipleFlag : kUSDHC_AdmaDescriptorSingleFlag); } /* 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); } #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 error = USDHC_SetDataTransferConfig(base, data, &(command->flags)); if (kStatus_Success != error) { return error; } /* send command first */ USDHC_SendCommand(base, command); return kStatus_Success; } #if defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE) 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 | USDHC_MIX_CTRL_FBCLK_SEL_MASK; } else { /* abort the tuning */ base->MIX_CTRL &= ~(USDHC_MIX_CTRL_EXE_TUNE_MASK | USDHC_MIX_CTRL_SMP_CLK_SEL_MASK); } } status_t USDHC_AdjustDelayForManualTuning(USDHC_Type *base, uint32_t delay) { uint32_t clkTuneCtrl = 0U; 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 (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; } void USDHC_EnableStandardTuning(USDHC_Type *base, uint32_t tuningStartTap, uint32_t step, bool enable) { uint32_t tuningCtrl = 0U; 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); } } void USDHC_EnableAutoTuningForCmdAndData(USDHC_Type *base) { uint32_t busWidth = 0U; base->VEND_SPEC2 |= USDHC_VEND_SPEC2_TUNING_CMD_EN_MASK; busWidth = (base->PROT_CTRL & USDHC_PROT_CTRL_DTW_MASK) >> USDHC_PROT_CTRL_DTW_SHIFT; if (busWidth == kUSDHC_DataBusWidth1Bit) { base->VEND_SPEC2 &= ~USDHC_VEND_SPEC2_TUNING_8bit_EN_MASK; base->VEND_SPEC2 |= USDHC_VEND_SPEC2_TUNING_1bit_EN_MASK; } else if (busWidth == kUSDHC_DataBusWidth4Bit) { base->VEND_SPEC2 &= ~USDHC_VEND_SPEC2_TUNING_8bit_EN_MASK; base->VEND_SPEC2 &= ~USDHC_VEND_SPEC2_TUNING_1bit_EN_MASK; } else if (busWidth == kUSDHC_DataBusWidth8Bit) { base->VEND_SPEC2 |= USDHC_VEND_SPEC2_TUNING_8bit_EN_MASK; base->VEND_SPEC2 &= ~USDHC_VEND_SPEC2_TUNING_1bit_EN_MASK; } else { } } #endif /* FSL_FEATURE_USDHC_HAS_SDR50_MODE */ static void USDHC_TransferHandleCardDetect(USDHC_Type *base, usdhc_handle_t *handle, uint32_t interruptFlags) { if (interruptFlags & kUSDHC_CardInsertionFlag) { if (handle->callback.CardInserted) { handle->callback.CardInserted(base, handle->userData); } } else { if (handle->callback.CardRemoved) { handle->callback.CardRemoved(base, handle->userData); } } } static void USDHC_TransferHandleCommand(USDHC_Type *base, usdhc_handle_t *handle, uint32_t interruptFlags) { assert(handle->command); if ((interruptFlags & kUSDHC_CommandErrorFlag) && (!(handle->data))) { if (handle->callback.TransferComplete) { 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) { handle->callback.TransferComplete(base, handle, kStatus_USDHC_SendCommandFailed, handle->userData); } } else if ((!(handle->data)) && (handle->callback.TransferComplete)) { if (handle->callback.TransferComplete) { handle->callback.TransferComplete(base, handle, kStatus_Success, handle->userData); } } else { } } } static void USDHC_TransferHandleData(USDHC_Type *base, usdhc_handle_t *handle, uint32_t interruptFlags) { assert(handle->data); if ((!(handle->data->enableIgnoreError)) && ((interruptFlags & (kUSDHC_DataErrorFlag | kUSDHC_DmaErrorFlag)))) { if (handle->callback.TransferComplete) { handle->callback.TransferComplete(base, handle, kStatus_USDHC_TransferDataFailed, handle->userData); } } else { if (interruptFlags & kUSDHC_BufferReadReadyFlag) { /* std tuning process only need to wait BRR */ if (handle->data->dataType == kUSDHC_TransferDataTuning) { if (handle->callback.TransferComplete) { handle->callback.TransferComplete(base, handle, kStatus_Success, handle->userData); } } else { handle->transferredWords = USDHC_ReadDataPort(base, handle->data, handle->transferredWords); } } else if (interruptFlags & kUSDHC_BufferWriteReadyFlag) { handle->transferredWords = USDHC_WriteDataPort(base, handle->data, handle->transferredWords); } else { if ((interruptFlags & kUSDHC_DmaCompleteFlag) && (handle->data->dataType == kUSDHC_TransferDataBootcontinous)) { *(handle->data->rxData) = s_usdhcBootDummy; } if ((handle->callback.TransferComplete) && (interruptFlags & kUSDHC_DataCompleteFlag)) { handle->callback.TransferComplete(base, handle, kStatus_Success, handle->userData); } } } } static void USDHC_TransferHandleSdioInterrupt(USDHC_Type *base, usdhc_handle_t *handle) { if (handle->callback.SdioInterrupt) { handle->callback.SdioInterrupt(base, handle->userData); } } static void USDHC_TransferHandleReTuning(USDHC_Type *base, usdhc_handle_t *handle, uint32_t interruptFlags) { assert(handle->callback.ReTuning); /* retuning request */ if ((interruptFlags & kUSDHC_TuningErrorFlag) == kUSDHC_TuningErrorFlag) { handle->callback.ReTuning(base, handle->userData); /* retuning fail */ } } static void USDHC_TransferHandleBlockGap(USDHC_Type *base, usdhc_handle_t *handle) { if (handle->callback.BlockGap) { handle->callback.BlockGap(base, handle->userData); } } void USDHC_TransferCreateHandle(USDHC_Type *base, usdhc_handle_t *handle, const usdhc_transfer_callback_t *callback, void *userData) { assert(handle); assert(callback); /* Zero the handle. */ memset(handle, 0, sizeof(*handle)); /* Set the callback. */ handle->callback.CardInserted = callback->CardInserted; handle->callback.CardRemoved = callback->CardRemoved; handle->callback.SdioInterrupt = callback->SdioInterrupt; handle->callback.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; /* Enable interrupt in NVIC. */ USDHC_SetTransferInterrupt(base, true); /* disable the tuning pass interrupt */ USDHC_DisableInterruptSignal(base, kUSDHC_TuningPassFlag | kUSDHC_ReTuningEventFlag); /* save IRQ handler */ s_usdhcIsr = USDHC_TransferHandleIRQ; EnableIRQ(s_usdhcIRQ[USDHC_GetInstance(base)]); } void USDHC_TransferHandleIRQ(USDHC_Type *base, usdhc_handle_t *handle) { assert(handle); uint32_t interruptFlags; interruptFlags = USDHC_GetInterruptStatusFlags(base); handle->interruptFlags = interruptFlags; if (interruptFlags & kUSDHC_CardDetectFlag) { USDHC_TransferHandleCardDetect(base, handle, (interruptFlags & kUSDHC_CardDetectFlag)); } if (interruptFlags & kUSDHC_CommandFlag) { USDHC_TransferHandleCommand(base, handle, (interruptFlags & kUSDHC_CommandFlag)); } if (interruptFlags & kUSDHC_DataFlag) { USDHC_TransferHandleData(base, handle, (interruptFlags & kUSDHC_DataFlag)); } if (interruptFlags & kUSDHC_CardInterruptFlag) { USDHC_TransferHandleSdioInterrupt(base, handle); } if (interruptFlags & kUSDHC_BlockGapEventFlag) { USDHC_TransferHandleBlockGap(base, handle); } if (interruptFlags & kUSDHC_SDR104TuningFlag) { USDHC_TransferHandleReTuning(base, handle, (interruptFlags & kUSDHC_SDR104TuningFlag)); } USDHC_ClearInterruptStatusFlags(base, interruptFlags); } #ifdef USDHC0 void USDHC0_DriverIRQHandler(void) { s_usdhcIsr(s_usdhcBase[0U], s_usdhcHandle[0U]); /* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping exception return operation might vector to incorrect interrupt */ #if defined __CORTEX_M && (__CORTEX_M == 4U) __DSB(); #endif } #endif #ifdef USDHC1 void USDHC1_DriverIRQHandler(void) { s_usdhcIsr(s_usdhcBase[1U], s_usdhcHandle[1U]); /* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping exception return operation might vector to incorrect interrupt */ #if defined __CORTEX_M && (__CORTEX_M == 4U) __DSB(); #endif } #endif #ifdef USDHC2 void USDHC2_DriverIRQHandler(void) { s_usdhcIsr(s_usdhcBase[2U], s_usdhcHandle[2U]); /* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping exception return operation might vector to incorrect interrupt */ #if defined __CORTEX_M && (__CORTEX_M == 4U) __DSB(); #endif } #endif