/**************************************************************************************** | Project Name: Application Development using the Olimex STM32-E407 board | Description: Disk I/O source file for FatFS configured for an MMC card on SDIO. | File Name: mmc.c | Notes: The SDIO interface was derived from the SDCARD example that comes with | the Standard Peripheral Library from STMicroelectronics as falls under | their copyright and license. By using this file you agree to: | | COPYRIGHT 2013 STMicroelectronics | | Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); | You may not use this file except in compliance with the License. | You may obtain a copy of the License at: | | http://www.st.com/software_license_agreement_liberty_v2 | | Unless required by applicable law or agreed to in writing, software | distributed under the License is distributed on an "AS IS" BASIS, | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | See the License for the specific language governing permissions and | limitations under the License. | |****************************************************************************************/ /**************************************************************************************** * Include files ****************************************************************************************/ #include #include "diskio.h" #include "stm32f4xx.h" /**************************************************************************************** * Type definitions ****************************************************************************************/ /** * @brief SDIO specific error defines */ typedef enum { SD_CMD_CRC_FAIL = (1), /*!< Command response received (but CRC check failed) */ SD_DATA_CRC_FAIL = (2), /*!< Data bock sent/received (CRC check Failed) */ SD_CMD_RSP_TIMEOUT = (3), /*!< Command response timeout */ SD_DATA_TIMEOUT = (4), /*!< Data time out */ SD_TX_UNDERRUN = (5), /*!< Transmit FIFO under-run */ SD_RX_OVERRUN = (6), /*!< Receive FIFO over-run */ SD_START_BIT_ERR = (7), /*!< Start bit not detected on all data signals in widE bus mode */ SD_CMD_OUT_OF_RANGE = (8), /*!< CMD's argument was out of range.*/ SD_ADDR_MISALIGNED = (9), /*!< Misaligned address */ SD_BLOCK_LEN_ERR = (10), /*!< Transferred block length is not allowed for the card or the number of transferred bytes does not match the block length */ SD_ERASE_SEQ_ERR = (11), /*!< An error in the sequence of erase command occurs.*/ SD_BAD_ERASE_PARAM = (12), /*!< An Invalid selection for erase groups */ SD_WRITE_PROT_VIOLATION = (13), /*!< Attempt to program a write protect block */ SD_LOCK_UNLOCK_FAILED = (14), /*!< Sequence or password error has been detected in unlock command or if there was an attempt to access a locked card */ SD_COM_CRC_FAILED = (15), /*!< CRC check of the previous command failed */ SD_ILLEGAL_CMD = (16), /*!< Command is not legal for the card state */ SD_CARD_ECC_FAILED = (17), /*!< Card internal ECC was applied but failed to correct the data */ SD_CC_ERROR = (18), /*!< Internal card controller error */ SD_GENERAL_UNKNOWN_ERROR = (19), /*!< General or Unknown error */ SD_STREAM_READ_UNDERRUN = (20), /*!< The card could not sustain data transfer in stream read operation. */ SD_STREAM_WRITE_OVERRUN = (21), /*!< The card could not sustain data programming in stream mode */ SD_CID_CSD_OVERWRITE = (22), /*!< CID/CSD overwrite error */ SD_WP_ERASE_SKIP = (23), /*!< only partial address space was erased */ SD_CARD_ECC_DISABLED = (24), /*!< Command has been executed without using internal ECC */ SD_ERASE_RESET = (25), /*!< Erase sequence was cleared before executing because an out of erase sequence command was received */ SD_AKE_SEQ_ERROR = (26), /*!< Error in sequence of authentication. */ SD_INVALID_VOLTRANGE = (27), SD_ADDR_OUT_OF_RANGE = (28), SD_SWITCH_ERROR = (29), SD_SDIO_DISABLED = (30), SD_SDIO_FUNCTION_BUSY = (31), SD_SDIO_FUNCTION_FAILED = (32), SD_SDIO_UNKNOWN_FUNCTION = (33), /** * @brief Standard error defines */ SD_INTERNAL_ERROR, SD_NOT_CONFIGURED, SD_REQUEST_PENDING, SD_REQUEST_NOT_APPLICABLE, SD_INVALID_PARAMETER, SD_UNSUPPORTED_FEATURE, SD_UNSUPPORTED_HW, SD_ERROR, SD_OK = 0 } SD_Error; /** * @brief SDIO Transfer state */ typedef enum { SD_TRANSFER_OK = 0, SD_TRANSFER_BUSY = 1, SD_TRANSFER_ERROR } SDTransferState; /** * @brief SD Card States */ typedef enum { SD_CARD_READY = ((uint32_t)0x00000001), SD_CARD_IDENTIFICATION = ((uint32_t)0x00000002), SD_CARD_STANDBY = ((uint32_t)0x00000003), SD_CARD_TRANSFER = ((uint32_t)0x00000004), SD_CARD_SENDING = ((uint32_t)0x00000005), SD_CARD_RECEIVING = ((uint32_t)0x00000006), SD_CARD_PROGRAMMING = ((uint32_t)0x00000007), SD_CARD_DISCONNECTED = ((uint32_t)0x00000008), SD_CARD_ERROR = ((uint32_t)0x000000FF) }SDCardState; /** * @brief Card Specific Data: CSD Register */ typedef struct { __IO uint8_t CSDStruct; /*!< CSD structure */ __IO uint8_t SysSpecVersion; /*!< System specification version */ __IO uint8_t Reserved1; /*!< Reserved */ __IO uint8_t TAAC; /*!< Data read access-time 1 */ __IO uint8_t NSAC; /*!< Data read access-time 2 in CLK cycles */ __IO uint8_t MaxBusClkFrec; /*!< Max. bus clock frequency */ __IO uint16_t CardComdClasses; /*!< Card command classes */ __IO uint8_t RdBlockLen; /*!< Max. read data block length */ __IO uint8_t PartBlockRead; /*!< Partial blocks for read allowed */ __IO uint8_t WrBlockMisalign; /*!< Write block misalignment */ __IO uint8_t RdBlockMisalign; /*!< Read block misalignment */ __IO uint8_t DSRImpl; /*!< DSR implemented */ __IO uint8_t Reserved2; /*!< Reserved */ __IO uint32_t DeviceSize; /*!< Device Size */ __IO uint8_t MaxRdCurrentVDDMin; /*!< Max. read current @ VDD min */ __IO uint8_t MaxRdCurrentVDDMax; /*!< Max. read current @ VDD max */ __IO uint8_t MaxWrCurrentVDDMin; /*!< Max. write current @ VDD min */ __IO uint8_t MaxWrCurrentVDDMax; /*!< Max. write current @ VDD max */ __IO uint8_t DeviceSizeMul; /*!< Device size multiplier */ __IO uint8_t EraseGrSize; /*!< Erase group size */ __IO uint8_t EraseGrMul; /*!< Erase group size multiplier */ __IO uint8_t WrProtectGrSize; /*!< Write protect group size */ __IO uint8_t WrProtectGrEnable; /*!< Write protect group enable */ __IO uint8_t ManDeflECC; /*!< Manufacturer default ECC */ __IO uint8_t WrSpeedFact; /*!< Write speed factor */ __IO uint8_t MaxWrBlockLen; /*!< Max. write data block length */ __IO uint8_t WriteBlockPaPartial; /*!< Partial blocks for write allowed */ __IO uint8_t Reserved3; /*!< Reserded */ __IO uint8_t ContentProtectAppli; /*!< Content protection application */ __IO uint8_t FileFormatGrouop; /*!< File format group */ __IO uint8_t CopyFlag; /*!< Copy flag (OTP) */ __IO uint8_t PermWrProtect; /*!< Permanent write protection */ __IO uint8_t TempWrProtect; /*!< Temporary write protection */ __IO uint8_t FileFormat; /*!< File Format */ __IO uint8_t ECC; /*!< ECC code */ __IO uint8_t CSD_CRC; /*!< CSD CRC */ __IO uint8_t Reserved4; /*!< always 1*/ } SD_CSD; /** * @brief Card Identification Data: CID Register */ typedef struct { __IO uint8_t ManufacturerID; /*!< ManufacturerID */ __IO uint16_t OEM_AppliID; /*!< OEM/Application ID */ __IO uint32_t ProdName1; /*!< Product Name part1 */ __IO uint8_t ProdName2; /*!< Product Name part2*/ __IO uint8_t ProdRev; /*!< Product Revision */ __IO uint32_t ProdSN; /*!< Product Serial Number */ __IO uint8_t Reserved1; /*!< Reserved1 */ __IO uint16_t ManufactDate; /*!< Manufacturing Date */ __IO uint8_t CID_CRC; /*!< CID CRC */ __IO uint8_t Reserved2; /*!< always 1 */ } SD_CID; /** * @brief SD Card Status */ typedef struct { __IO uint8_t DAT_BUS_WIDTH; __IO uint8_t SECURED_MODE; __IO uint16_t SD_CARD_TYPE; __IO uint32_t SIZE_OF_PROTECTED_AREA; __IO uint8_t SPEED_CLASS; __IO uint8_t PERFORMANCE_MOVE; __IO uint8_t AU_SIZE; __IO uint16_t ERASE_SIZE; __IO uint8_t ERASE_TIMEOUT; __IO uint8_t ERASE_OFFSET; } SD_CardStatus; /** * @brief SD Card information */ typedef struct { SD_CSD SD_csd; SD_CID SD_cid; uint64_t CardCapacity; /*!< Card Capacity */ uint32_t CardBlockSize; /*!< Card Block Size */ uint16_t RCA; uint8_t CardType; } SD_CardInfo; /**************************************************************************************** * Defines ****************************************************************************************/ /** * @brief SDIO Commands Index */ #define SD_CMD_GO_IDLE_STATE ((uint8_t)0) #define SD_CMD_SEND_OP_COND ((uint8_t)1) #define SD_CMD_ALL_SEND_CID ((uint8_t)2) #define SD_CMD_SET_REL_ADDR ((uint8_t)3) /*!< SDIO_SEND_REL_ADDR for SD Card */ #define SD_CMD_SET_DSR ((uint8_t)4) #define SD_CMD_SDIO_SEN_OP_COND ((uint8_t)5) #define SD_CMD_HS_SWITCH ((uint8_t)6) #define SD_CMD_SEL_DESEL_CARD ((uint8_t)7) #define SD_CMD_HS_SEND_EXT_CSD ((uint8_t)8) #define SD_CMD_SEND_CSD ((uint8_t)9) #define SD_CMD_SEND_CID ((uint8_t)10) #define SD_CMD_READ_DAT_UNTIL_STOP ((uint8_t)11) /*!< SD Card doesn't support it */ #define SD_CMD_STOP_TRANSMISSION ((uint8_t)12) #define SD_CMD_SEND_STATUS ((uint8_t)13) #define SD_CMD_HS_BUSTEST_READ ((uint8_t)14) #define SD_CMD_GO_INACTIVE_STATE ((uint8_t)15) #define SD_CMD_SET_BLOCKLEN ((uint8_t)16) #define SD_CMD_READ_SINGLE_BLOCK ((uint8_t)17) #define SD_CMD_READ_MULT_BLOCK ((uint8_t)18) #define SD_CMD_HS_BUSTEST_WRITE ((uint8_t)19) #define SD_CMD_WRITE_DAT_UNTIL_STOP ((uint8_t)20) /*!< SD Card doesn't support it */ #define SD_CMD_SET_BLOCK_COUNT ((uint8_t)23) /*!< SD Card doesn't support it */ #define SD_CMD_WRITE_SINGLE_BLOCK ((uint8_t)24) #define SD_CMD_WRITE_MULT_BLOCK ((uint8_t)25) #define SD_CMD_PROG_CID ((uint8_t)26) /*!< reserved for manufacturers */ #define SD_CMD_PROG_CSD ((uint8_t)27) #define SD_CMD_SET_WRITE_PROT ((uint8_t)28) #define SD_CMD_CLR_WRITE_PROT ((uint8_t)29) #define SD_CMD_SEND_WRITE_PROT ((uint8_t)30) #define SD_CMD_SD_ERASE_GRP_START ((uint8_t)32) /*!< To set the address of the first write block to be erased. (For SD card only) */ #define SD_CMD_SD_ERASE_GRP_END ((uint8_t)33) /*!< To set the address of the last write block of the continuous range to be erased. (For SD card only) */ #define SD_CMD_ERASE_GRP_START ((uint8_t)35) /*!< To set the address of the first write block to be erased. (For MMC card only spec 3.31) */ #define SD_CMD_ERASE_GRP_END ((uint8_t)36) /*!< To set the address of the last write block of the continuous range to be erased. (For MMC card only spec 3.31) */ #define SD_CMD_ERASE ((uint8_t)38) #define SD_CMD_FAST_IO ((uint8_t)39) /*!< SD Card doesn't support it */ #define SD_CMD_GO_IRQ_STATE ((uint8_t)40) /*!< SD Card doesn't support it */ #define SD_CMD_LOCK_UNLOCK ((uint8_t)42) #define SD_CMD_APP_CMD ((uint8_t)55) #define SD_CMD_GEN_CMD ((uint8_t)56) #define SD_CMD_NO_CMD ((uint8_t)64) /** * @brief Following commands are SD Card Specific commands. * SDIO_APP_CMD should be sent before sending these commands. */ #define SD_CMD_APP_SD_SET_BUSWIDTH ((uint8_t)6) /*!< For SD Card only */ #define SD_CMD_SD_APP_STAUS ((uint8_t)13) /*!< For SD Card only */ #define SD_CMD_SD_APP_SEND_NUM_WRITE_BLOCKS ((uint8_t)22) /*!< For SD Card only */ #define SD_CMD_SD_APP_OP_COND ((uint8_t)41) /*!< For SD Card only */ #define SD_CMD_SD_APP_SET_CLR_CARD_DETECT ((uint8_t)42) /*!< For SD Card only */ #define SD_CMD_SD_APP_SEND_SCR ((uint8_t)51) /*!< For SD Card only */ #define SD_CMD_SDIO_RW_DIRECT ((uint8_t)52) /*!< For SD I/O Card only */ #define SD_CMD_SDIO_RW_EXTENDED ((uint8_t)53) /*!< For SD I/O Card only */ /** * @brief Following commands are SD Card Specific security commands. * SDIO_APP_CMD should be sent before sending these commands. */ #define SD_CMD_SD_APP_GET_MKB ((uint8_t)43) /*!< For SD Card only */ #define SD_CMD_SD_APP_GET_MID ((uint8_t)44) /*!< For SD Card only */ #define SD_CMD_SD_APP_SET_CER_RN1 ((uint8_t)45) /*!< For SD Card only */ #define SD_CMD_SD_APP_GET_CER_RN2 ((uint8_t)46) /*!< For SD Card only */ #define SD_CMD_SD_APP_SET_CER_RES2 ((uint8_t)47) /*!< For SD Card only */ #define SD_CMD_SD_APP_GET_CER_RES1 ((uint8_t)48) /*!< For SD Card only */ #define SD_CMD_SD_APP_SECURE_READ_MULTIPLE_BLOCK ((uint8_t)18) /*!< For SD Card only */ #define SD_CMD_SD_APP_SECURE_WRITE_MULTIPLE_BLOCK ((uint8_t)25) /*!< For SD Card only */ #define SD_CMD_SD_APP_SECURE_ERASE ((uint8_t)38) /*!< For SD Card only */ #define SD_CMD_SD_APP_CHANGE_SECURE_AREA ((uint8_t)49) /*!< For SD Card only */ #define SD_CMD_SD_APP_SECURE_WRITE_MKB ((uint8_t)48) /*!< For SD Card only */ /* Uncomment the following line to select the SDIO Data transfer mode */ #define SD_POLLING_MODE ((uint32_t)0x00000002) #if defined (SD_POLLING_MODE) /* do not use DMA mode if configured for polling */ #if defined (SD_DMA_MODE) #undef SD_DMA_MODE #endif #else /* always use DMA mode if configured for interrupt mode */ #define SD_DMA_MODE ((uint32_t)0x00000000) #endif /** * @brief SD detection on its memory slot */ #define SD_PRESENT ((uint8_t)0x01) #define SD_NOT_PRESENT ((uint8_t)0x00) /** * @brief Supported SD Memory Cards */ #define SDIO_STD_CAPACITY_SD_CARD_V1_1 ((uint32_t)0x00000000) #define SDIO_STD_CAPACITY_SD_CARD_V2_0 ((uint32_t)0x00000001) #define SDIO_HIGH_CAPACITY_SD_CARD ((uint32_t)0x00000002) #define SDIO_MULTIMEDIA_CARD ((uint32_t)0x00000003) #define SDIO_SECURE_DIGITAL_IO_CARD ((uint32_t)0x00000004) #define SDIO_HIGH_SPEED_MULTIMEDIA_CARD ((uint32_t)0x00000005) #define SDIO_SECURE_DIGITAL_IO_COMBO_CARD ((uint32_t)0x00000006) #define SDIO_HIGH_CAPACITY_MMC_CARD ((uint32_t)0x00000007) /** * @brief SDIO Static flags, TimeOut, FIFO Address */ #ifndef NULL #define NULL ((void*)0) #endif #define SDIO_STATIC_FLAGS ((uint32_t)0x000005FF) #define SDIO_CMD0TIMEOUT ((uint32_t)0x00010000) /** * @brief Mask for errors Card Status R1 (OCR Register) */ #define SD_OCR_ADDR_OUT_OF_RANGE ((uint32_t)0x80000000) #define SD_OCR_ADDR_MISALIGNED ((uint32_t)0x40000000) #define SD_OCR_BLOCK_LEN_ERR ((uint32_t)0x20000000) #define SD_OCR_ERASE_SEQ_ERR ((uint32_t)0x10000000) #define SD_OCR_BAD_ERASE_PARAM ((uint32_t)0x08000000) #define SD_OCR_WRITE_PROT_VIOLATION ((uint32_t)0x04000000) #define SD_OCR_LOCK_UNLOCK_FAILED ((uint32_t)0x01000000) #define SD_OCR_COM_CRC_FAILED ((uint32_t)0x00800000) #define SD_OCR_ILLEGAL_CMD ((uint32_t)0x00400000) #define SD_OCR_CARD_ECC_FAILED ((uint32_t)0x00200000) #define SD_OCR_CC_ERROR ((uint32_t)0x00100000) #define SD_OCR_GENERAL_UNKNOWN_ERROR ((uint32_t)0x00080000) #define SD_OCR_STREAM_READ_UNDERRUN ((uint32_t)0x00040000) #define SD_OCR_STREAM_WRITE_OVERRUN ((uint32_t)0x00020000) #define SD_OCR_CID_CSD_OVERWRIETE ((uint32_t)0x00010000) #define SD_OCR_WP_ERASE_SKIP ((uint32_t)0x00008000) #define SD_OCR_CARD_ECC_DISABLED ((uint32_t)0x00004000) #define SD_OCR_ERASE_RESET ((uint32_t)0x00002000) #define SD_OCR_AKE_SEQ_ERROR ((uint32_t)0x00000008) #define SD_OCR_ERRORBITS ((uint32_t)0xFDFFE008) /** * @brief Masks for R6 Response */ #define SD_R6_GENERAL_UNKNOWN_ERROR ((uint32_t)0x00002000) #define SD_R6_ILLEGAL_CMD ((uint32_t)0x00004000) #define SD_R6_COM_CRC_FAILED ((uint32_t)0x00008000) #define SD_VOLTAGE_WINDOW_SD ((uint32_t)0x80100000) #define SD_HIGH_CAPACITY ((uint32_t)0x40000000) #define SD_STD_CAPACITY ((uint32_t)0x00000000) #define SD_CHECK_PATTERN ((uint32_t)0x000001AA) #define SD_MAX_VOLT_TRIAL ((uint32_t)0x0000FFFF) #define SD_ALLZERO ((uint32_t)0x00000000) #define SD_WIDE_BUS_SUPPORT ((uint32_t)0x00040000) #define SD_SINGLE_BUS_SUPPORT ((uint32_t)0x00010000) #define SD_CARD_LOCKED ((uint32_t)0x02000000) #define SD_DATATIMEOUT ((uint32_t)0xFFFFFFFF) #define SD_0TO7BITS ((uint32_t)0x000000FF) #define SD_8TO15BITS ((uint32_t)0x0000FF00) #define SD_16TO23BITS ((uint32_t)0x00FF0000) #define SD_24TO31BITS ((uint32_t)0xFF000000) #define SD_MAX_DATA_LENGTH ((uint32_t)0x01FFFFFF) #define SD_HALFFIFO ((uint32_t)0x00000008) #define SD_HALFFIFOBYTES ((uint32_t)0x00000020) /** * @brief Command Class Supported */ #define SD_CCCC_LOCK_UNLOCK ((uint32_t)0x00000080) #define SD_CCCC_WRITE_PROT ((uint32_t)0x00000040) #define SD_CCCC_ERASE ((uint32_t)0x00000020) /** * @brief Following commands are SD Card Specific commands. * SDIO_APP_CMD should be sent before sending these commands. */ #define SDIO_SEND_IF_COND ((uint32_t)0x00000008) /** * @brief SD FLASH SDIO Interface */ #define SD_DETECT_PIN GPIO_Pin_11 /* PC.11 */ #define SD_DETECT_GPIO_PORT GPIOC /* GPIOC */ #define SD_DETECT_GPIO_CLK RCC_AHB1Periph_GPIOC #define SDIO_FIFO_ADDRESS ((uint32_t)0x40012C80) /** * @brief SDIO Intialization Frequency (400KHz max) */ #define SDIO_INIT_CLK_DIV ((uint8_t)0x76) /** * @brief SDIO Data Transfer Frequency (25MHz max) */ #define SDIO_TRANSFER_CLK_DIV ((uint8_t)0x0) #define SD_SDIO_DMA DMA2 #define SD_SDIO_DMA_CLK RCC_AHB1Periph_DMA2 #define SD_SDIO_DMA_STREAM DMA2_Stream3 #define SD_SDIO_DMA_CHANNEL DMA_Channel_4 #define SD_SDIO_DMA_FLAG_FEIF DMA_FLAG_FEIF3 #define SD_SDIO_DMA_FLAG_DMEIF DMA_FLAG_DMEIF3 #define SD_SDIO_DMA_FLAG_TEIF DMA_FLAG_TEIF3 #define SD_SDIO_DMA_FLAG_HTIF DMA_FLAG_HTIF3 #define SD_SDIO_DMA_FLAG_TCIF DMA_FLAG_TCIF3 #define SD_SDIO_DMA_IRQn DMA2_Stream3_IRQn #define SD_SDIO_DMA_IRQHANDLER DMA2_Stream3_IRQHandler #define SD_BLOCKSIZE (512) /**************************************************************************************** * Local data declarations ****************************************************************************************/ static uint32_t CardType = SDIO_STD_CAPACITY_SD_CARD_V1_1; static uint32_t CSD_Tab[4], CID_Tab[4], RCA = 0; static uint8_t SDSTATUS_Tab[64]; static __IO uint32_t StopCondition = 0; static __IO SD_Error TransferError = SD_OK; static __IO uint32_t TransferEnd = 0, DMAEndOfTransfer = 1; static SD_CardInfo SDCardInfo; static SDIO_InitTypeDef SDIO_InitStructure; static SDIO_CmdInitTypeDef SDIO_CmdInitStructure; static SDIO_DataInitTypeDef SDIO_DataInitStructure; static volatile DSTATUS Stat = STA_NOINIT; /* Disk status */ /**************************************************************************************** * Function prototypes ****************************************************************************************/ void SD_DeInit(void); SD_Error SD_Init(void); SDTransferState SD_GetStatus(void); SDCardState SD_GetState(void); uint8_t SD_Detect(void); SD_Error SD_PowerON(void); SD_Error SD_PowerOFF(void); SD_Error SD_InitializeCards(void); SD_Error SD_GetCardInfo(SD_CardInfo *cardinfo); SD_Error SD_GetCardStatus(SD_CardStatus *cardstatus); SD_Error SD_EnableWideBusOperation(uint32_t WideMode); SD_Error SD_SelectDeselect(uint64_t addr); SD_Error SD_ReadBlock(uint8_t *readbuff, uint64_t ReadAddr, uint16_t BlockSize); SD_Error SD_ReadMultiBlocks(uint8_t *readbuff, uint64_t ReadAddr, uint16_t BlockSize, uint32_t NumberOfBlocks); SD_Error SD_WriteBlock(uint8_t *writebuff, uint64_t WriteAddr, uint16_t BlockSize); SD_Error SD_WriteMultiBlocks(uint8_t *writebuff, uint64_t WriteAddr, uint16_t BlockSize, uint32_t NumberOfBlocks); SDTransferState SD_GetTransferState(void); SD_Error SD_StopTransfer(void); SD_Error SD_Erase(uint64_t startaddr, uint64_t endaddr); SD_Error SD_SendStatus(uint32_t *pcardstatus); SD_Error SD_SendSDStatus(uint32_t *psdstatus); SD_Error SD_ProcessIRQSrc(void); void SD_ProcessDMAIRQ(void); SD_Error SD_WaitReadOperation(void); SD_Error SD_WaitWriteOperation(void); static SD_Error CmdError(void); static SD_Error CmdResp1Error(uint8_t cmd); static SD_Error CmdResp7Error(void); static SD_Error CmdResp3Error(void); static SD_Error CmdResp2Error(void); static SD_Error CmdResp6Error(uint8_t cmd, uint16_t *prca); static SD_Error SDEnWideBus(FunctionalState NewState); static SD_Error IsCardProgramming(uint8_t *pstatus); static SD_Error FindSCR(uint16_t rca, uint32_t *pscr); static void SD_LowLevel_DeInit(void); static void SD_LowLevel_Init(void); static void SD_LowLevel_DMA_TxConfig(uint32_t *BufferSRC, uint32_t BufferSize); static void SD_LowLevel_DMA_RxConfig(uint32_t *BufferDST, uint32_t BufferSize); /** * @brief DeInitializes the SDIO interface. * @param None * @retval None */ void SD_DeInit(void) { SD_LowLevel_DeInit(); } /** * @brief Initializes the SD Card and put it into StandBy State (Ready for data * transfer). * @param None * @retval SD_Error: SD Card Error code. */ SD_Error SD_Init(void) { __IO SD_Error errorstatus = SD_OK; /* SDIO Peripheral Low Level Init */ SD_LowLevel_Init(); SDIO_DeInit(); errorstatus = SD_PowerON(); if (errorstatus != SD_OK) { /*!< CMD Response TimeOut (wait for CMDSENT flag) */ return(errorstatus); } errorstatus = SD_InitializeCards(); if (errorstatus != SD_OK) { /*!< CMD Response TimeOut (wait for CMDSENT flag) */ return(errorstatus); } /*!< Configure the SDIO peripheral */ /*!< SDIO_CK = SDIOCLK / (SDIO_TRANSFER_CLK_DIV + 2) */ /*!< on STM32F4xx devices, SDIOCLK is fixed to 48MHz */ SDIO_InitStructure.SDIO_ClockDiv = SDIO_TRANSFER_CLK_DIV; SDIO_InitStructure.SDIO_ClockEdge = SDIO_ClockEdge_Rising; SDIO_InitStructure.SDIO_ClockBypass = SDIO_ClockBypass_Disable; SDIO_InitStructure.SDIO_ClockPowerSave = SDIO_ClockPowerSave_Disable; SDIO_InitStructure.SDIO_BusWide = SDIO_BusWide_1b; SDIO_InitStructure.SDIO_HardwareFlowControl = SDIO_HardwareFlowControl_Disable; SDIO_Init(&SDIO_InitStructure); /*----------------- Read CSD/CID MSD registers ------------------*/ errorstatus = SD_GetCardInfo(&SDCardInfo); if (errorstatus == SD_OK) { /*----------------- Select Card --------------------------------*/ errorstatus = SD_SelectDeselect((uint32_t) (SDCardInfo.RCA << 16)); } if (errorstatus == SD_OK) { errorstatus = SD_EnableWideBusOperation(SDIO_BusWide_4b); } return(errorstatus); } /** * @brief Gets the cuurent sd card data transfer status. * @param None * @retval SDTransferState: Data Transfer state. * This value can be: * - SD_TRANSFER_OK: No data transfer is acting * - SD_TRANSFER_BUSY: Data transfer is acting */ SDTransferState SD_GetStatus(void) { SDCardState cardstate = SD_CARD_TRANSFER; cardstate = SD_GetState(); if (cardstate == SD_CARD_TRANSFER) { return(SD_TRANSFER_OK); } else if(cardstate == SD_CARD_ERROR) { return (SD_TRANSFER_ERROR); } else { return(SD_TRANSFER_BUSY); } } /** * @brief Returns the current card's state. * @param None * @retval SDCardState: SD Card Error or SD Card Current State. */ SDCardState SD_GetState(void) { uint32_t resp1 = 0; if(SD_Detect()== SD_PRESENT) { if (SD_SendStatus(&resp1) != SD_OK) { return SD_CARD_ERROR; } else { return (SDCardState)((resp1 >> 9) & 0x0F); } } else { return SD_CARD_ERROR; } } /** * @brief Detect if SD card is correctly plugged in the memory slot. * @param None * @retval Return if SD is detected or not */ uint8_t SD_Detect(void) { __IO uint8_t status = SD_PRESENT; /*!< Check GPIO to detect SD */ if (GPIO_ReadInputDataBit(SD_DETECT_GPIO_PORT, SD_DETECT_PIN) == Bit_RESET) { status = SD_NOT_PRESENT; } return status; } /** * @brief Enquires cards about their operating voltage and configures * clock controls. * @param None * @retval SD_Error: SD Card Error code. */ SD_Error SD_PowerON(void) { __IO SD_Error errorstatus = SD_OK; uint32_t response = 0, count = 0, validvoltage = 0; uint32_t SDType = SD_STD_CAPACITY; /*!< Power ON Sequence -----------------------------------------------------*/ /*!< Configure the SDIO peripheral */ /*!< SDIO_CK = SDIOCLK / (SDIO_INIT_CLK_DIV + 2) */ /*!< on STM32F4xx devices, SDIOCLK is fixed to 48MHz */ /*!< SDIO_CK for initialization should not exceed 400 KHz */ SDIO_InitStructure.SDIO_ClockDiv = SDIO_INIT_CLK_DIV; SDIO_InitStructure.SDIO_ClockEdge = SDIO_ClockEdge_Rising; SDIO_InitStructure.SDIO_ClockBypass = SDIO_ClockBypass_Disable; SDIO_InitStructure.SDIO_ClockPowerSave = SDIO_ClockPowerSave_Disable; SDIO_InitStructure.SDIO_BusWide = SDIO_BusWide_1b; SDIO_InitStructure.SDIO_HardwareFlowControl = SDIO_HardwareFlowControl_Disable; SDIO_Init(&SDIO_InitStructure); /*!< Set Power State to ON */ SDIO_SetPowerState(SDIO_PowerState_ON); /*!< Enable SDIO Clock */ SDIO_ClockCmd(ENABLE); /*!< CMD0: GO_IDLE_STATE ---------------------------------------------------*/ /*!< No CMD response required */ SDIO_CmdInitStructure.SDIO_Argument = 0x0; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_GO_IDLE_STATE; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_No; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdError(); if (errorstatus != SD_OK) { /*!< CMD Response TimeOut (wait for CMDSENT flag) */ return(errorstatus); } /*!< CMD8: SEND_IF_COND ----------------------------------------------------*/ /*!< Send CMD8 to verify SD card interface operating condition */ /*!< Argument: - [31:12]: Reserved (shall be set to '0') - [11:8]: Supply Voltage (VHS) 0x1 (Range: 2.7-3.6 V) - [7:0]: Check Pattern (recommended 0xAA) */ /*!< CMD Response: R7 */ SDIO_CmdInitStructure.SDIO_Argument = SD_CHECK_PATTERN; SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_SEND_IF_COND; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp7Error(); if (errorstatus == SD_OK) { CardType = SDIO_STD_CAPACITY_SD_CARD_V2_0; /*!< SD Card 2.0 */ SDType = SD_HIGH_CAPACITY; } else { /*!< CMD55 */ SDIO_CmdInitStructure.SDIO_Argument = 0x00; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_APP_CMD); } /*!< CMD55 */ SDIO_CmdInitStructure.SDIO_Argument = 0x00; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_APP_CMD); /*!< If errorstatus is Command TimeOut, it is a MMC card */ /*!< If errorstatus is SD_OK it is a SD card: SD card 2.0 (voltage range mismatch) or SD card 1.x */ if (errorstatus == SD_OK) { /*!< SD CARD */ /*!< Send ACMD41 SD_APP_OP_COND with Argument 0x80100000 */ while ((!validvoltage) && (count < SD_MAX_VOLT_TRIAL)) { /*!< SEND CMD55 APP_CMD with RCA as 0 */ SDIO_CmdInitStructure.SDIO_Argument = 0x00; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_APP_CMD); if (errorstatus != SD_OK) { return(errorstatus); } SDIO_CmdInitStructure.SDIO_Argument = SD_VOLTAGE_WINDOW_SD | SDType; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_APP_OP_COND; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp3Error(); if (errorstatus != SD_OK) { return(errorstatus); } response = SDIO_GetResponse(SDIO_RESP1); validvoltage = (((response >> 31) == 1) ? 1 : 0); count++; } if (count >= SD_MAX_VOLT_TRIAL) { errorstatus = SD_INVALID_VOLTRANGE; return(errorstatus); } if (response &= SD_HIGH_CAPACITY) { CardType = SDIO_HIGH_CAPACITY_SD_CARD; } }/*!< else MMC Card */ return(errorstatus); } /** * @brief Turns the SDIO output signals off. * @param None * @retval SD_Error: SD Card Error code. */ SD_Error SD_PowerOFF(void) { SD_Error errorstatus = SD_OK; /*!< Set Power State to OFF */ SDIO_SetPowerState(SDIO_PowerState_OFF); return(errorstatus); } /** * @brief Intialises all cards or single card as the case may be Card(s) come * into standby state. * @param None * @retval SD_Error: SD Card Error code. */ SD_Error SD_InitializeCards(void) { SD_Error errorstatus = SD_OK; uint16_t rca = 0x01; if (SDIO_GetPowerState() == SDIO_PowerState_OFF) { errorstatus = SD_REQUEST_NOT_APPLICABLE; return(errorstatus); } if (SDIO_SECURE_DIGITAL_IO_CARD != CardType) { /*!< Send CMD2 ALL_SEND_CID */ SDIO_CmdInitStructure.SDIO_Argument = 0x0; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_ALL_SEND_CID; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Long; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp2Error(); if (SD_OK != errorstatus) { return(errorstatus); } CID_Tab[0] = SDIO_GetResponse(SDIO_RESP1); CID_Tab[1] = SDIO_GetResponse(SDIO_RESP2); CID_Tab[2] = SDIO_GetResponse(SDIO_RESP3); CID_Tab[3] = SDIO_GetResponse(SDIO_RESP4); } if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType) || (SDIO_SECURE_DIGITAL_IO_COMBO_CARD == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType)) { /*!< Send CMD3 SET_REL_ADDR with argument 0 */ /*!< SD Card publishes its RCA. */ SDIO_CmdInitStructure.SDIO_Argument = 0x00; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_REL_ADDR; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp6Error(SD_CMD_SET_REL_ADDR, &rca); if (SD_OK != errorstatus) { return(errorstatus); } } if (SDIO_SECURE_DIGITAL_IO_CARD != CardType) { RCA = rca; /*!< Send CMD9 SEND_CSD with argument as card's RCA */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)(rca << 16); SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEND_CSD; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Long; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp2Error(); if (SD_OK != errorstatus) { return(errorstatus); } CSD_Tab[0] = SDIO_GetResponse(SDIO_RESP1); CSD_Tab[1] = SDIO_GetResponse(SDIO_RESP2); CSD_Tab[2] = SDIO_GetResponse(SDIO_RESP3); CSD_Tab[3] = SDIO_GetResponse(SDIO_RESP4); } errorstatus = SD_OK; /*!< All cards get intialized */ return(errorstatus); } /** * @brief Returns information about specific card. * @param cardinfo: pointer to a SD_CardInfo structure that contains all SD card * information. * @retval SD_Error: SD Card Error code. */ SD_Error SD_GetCardInfo(SD_CardInfo *cardinfo) { SD_Error errorstatus = SD_OK; uint8_t tmp = 0; cardinfo->CardType = (uint8_t)CardType; cardinfo->RCA = (uint16_t)RCA; /*!< Byte 0 */ tmp = (uint8_t)((CSD_Tab[0] & 0xFF000000) >> 24); cardinfo->SD_csd.CSDStruct = (tmp & 0xC0) >> 6; cardinfo->SD_csd.SysSpecVersion = (tmp & 0x3C) >> 2; cardinfo->SD_csd.Reserved1 = tmp & 0x03; /*!< Byte 1 */ tmp = (uint8_t)((CSD_Tab[0] & 0x00FF0000) >> 16); cardinfo->SD_csd.TAAC = tmp; /*!< Byte 2 */ tmp = (uint8_t)((CSD_Tab[0] & 0x0000FF00) >> 8); cardinfo->SD_csd.NSAC = tmp; /*!< Byte 3 */ tmp = (uint8_t)(CSD_Tab[0] & 0x000000FF); cardinfo->SD_csd.MaxBusClkFrec = tmp; /*!< Byte 4 */ tmp = (uint8_t)((CSD_Tab[1] & 0xFF000000) >> 24); cardinfo->SD_csd.CardComdClasses = tmp << 4; /*!< Byte 5 */ tmp = (uint8_t)((CSD_Tab[1] & 0x00FF0000) >> 16); cardinfo->SD_csd.CardComdClasses |= (tmp & 0xF0) >> 4; cardinfo->SD_csd.RdBlockLen = tmp & 0x0F; /*!< Byte 6 */ tmp = (uint8_t)((CSD_Tab[1] & 0x0000FF00) >> 8); cardinfo->SD_csd.PartBlockRead = (tmp & 0x80) >> 7; cardinfo->SD_csd.WrBlockMisalign = (tmp & 0x40) >> 6; cardinfo->SD_csd.RdBlockMisalign = (tmp & 0x20) >> 5; cardinfo->SD_csd.DSRImpl = (tmp & 0x10) >> 4; cardinfo->SD_csd.Reserved2 = 0; /*!< Reserved */ if ((CardType == SDIO_STD_CAPACITY_SD_CARD_V1_1) || (CardType == SDIO_STD_CAPACITY_SD_CARD_V2_0)) { cardinfo->SD_csd.DeviceSize = (tmp & 0x03) << 10; /*!< Byte 7 */ tmp = (uint8_t)(CSD_Tab[1] & 0x000000FF); cardinfo->SD_csd.DeviceSize |= (tmp) << 2; /*!< Byte 8 */ tmp = (uint8_t)((CSD_Tab[2] & 0xFF000000) >> 24); cardinfo->SD_csd.DeviceSize |= (tmp & 0xC0) >> 6; cardinfo->SD_csd.MaxRdCurrentVDDMin = (tmp & 0x38) >> 3; cardinfo->SD_csd.MaxRdCurrentVDDMax = (tmp & 0x07); /*!< Byte 9 */ tmp = (uint8_t)((CSD_Tab[2] & 0x00FF0000) >> 16); cardinfo->SD_csd.MaxWrCurrentVDDMin = (tmp & 0xE0) >> 5; cardinfo->SD_csd.MaxWrCurrentVDDMax = (tmp & 0x1C) >> 2; cardinfo->SD_csd.DeviceSizeMul = (tmp & 0x03) << 1; /*!< Byte 10 */ tmp = (uint8_t)((CSD_Tab[2] & 0x0000FF00) >> 8); cardinfo->SD_csd.DeviceSizeMul |= (tmp & 0x80) >> 7; cardinfo->CardCapacity = (cardinfo->SD_csd.DeviceSize + 1) ; cardinfo->CardCapacity *= (1 << (cardinfo->SD_csd.DeviceSizeMul + 2)); cardinfo->CardBlockSize = 1 << (cardinfo->SD_csd.RdBlockLen); cardinfo->CardCapacity *= cardinfo->CardBlockSize; } else if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) { /*!< Byte 7 */ tmp = (uint8_t)(CSD_Tab[1] & 0x000000FF); cardinfo->SD_csd.DeviceSize = (tmp & 0x3F) << 16; /*!< Byte 8 */ tmp = (uint8_t)((CSD_Tab[2] & 0xFF000000) >> 24); cardinfo->SD_csd.DeviceSize |= (tmp << 8); /*!< Byte 9 */ tmp = (uint8_t)((CSD_Tab[2] & 0x00FF0000) >> 16); cardinfo->SD_csd.DeviceSize |= (tmp); /*!< Byte 10 */ tmp = (uint8_t)((CSD_Tab[2] & 0x0000FF00) >> 8); cardinfo->CardCapacity = ((uint64_t)cardinfo->SD_csd.DeviceSize + 1) * 512 * 1024; cardinfo->CardBlockSize = 512; } cardinfo->SD_csd.EraseGrSize = (tmp & 0x40) >> 6; cardinfo->SD_csd.EraseGrMul = (tmp & 0x3F) << 1; /*!< Byte 11 */ tmp = (uint8_t)(CSD_Tab[2] & 0x000000FF); cardinfo->SD_csd.EraseGrMul |= (tmp & 0x80) >> 7; cardinfo->SD_csd.WrProtectGrSize = (tmp & 0x7F); /*!< Byte 12 */ tmp = (uint8_t)((CSD_Tab[3] & 0xFF000000) >> 24); cardinfo->SD_csd.WrProtectGrEnable = (tmp & 0x80) >> 7; cardinfo->SD_csd.ManDeflECC = (tmp & 0x60) >> 5; cardinfo->SD_csd.WrSpeedFact = (tmp & 0x1C) >> 2; cardinfo->SD_csd.MaxWrBlockLen = (tmp & 0x03) << 2; /*!< Byte 13 */ tmp = (uint8_t)((CSD_Tab[3] & 0x00FF0000) >> 16); cardinfo->SD_csd.MaxWrBlockLen |= (tmp & 0xC0) >> 6; cardinfo->SD_csd.WriteBlockPaPartial = (tmp & 0x20) >> 5; cardinfo->SD_csd.Reserved3 = 0; cardinfo->SD_csd.ContentProtectAppli = (tmp & 0x01); /*!< Byte 14 */ tmp = (uint8_t)((CSD_Tab[3] & 0x0000FF00) >> 8); cardinfo->SD_csd.FileFormatGrouop = (tmp & 0x80) >> 7; cardinfo->SD_csd.CopyFlag = (tmp & 0x40) >> 6; cardinfo->SD_csd.PermWrProtect = (tmp & 0x20) >> 5; cardinfo->SD_csd.TempWrProtect = (tmp & 0x10) >> 4; cardinfo->SD_csd.FileFormat = (tmp & 0x0C) >> 2; cardinfo->SD_csd.ECC = (tmp & 0x03); /*!< Byte 15 */ tmp = (uint8_t)(CSD_Tab[3] & 0x000000FF); cardinfo->SD_csd.CSD_CRC = (tmp & 0xFE) >> 1; cardinfo->SD_csd.Reserved4 = 1; /*!< Byte 0 */ tmp = (uint8_t)((CID_Tab[0] & 0xFF000000) >> 24); cardinfo->SD_cid.ManufacturerID = tmp; /*!< Byte 1 */ tmp = (uint8_t)((CID_Tab[0] & 0x00FF0000) >> 16); cardinfo->SD_cid.OEM_AppliID = tmp << 8; /*!< Byte 2 */ tmp = (uint8_t)((CID_Tab[0] & 0x000000FF00) >> 8); cardinfo->SD_cid.OEM_AppliID |= tmp; /*!< Byte 3 */ tmp = (uint8_t)(CID_Tab[0] & 0x000000FF); cardinfo->SD_cid.ProdName1 = tmp << 24; /*!< Byte 4 */ tmp = (uint8_t)((CID_Tab[1] & 0xFF000000) >> 24); cardinfo->SD_cid.ProdName1 |= tmp << 16; /*!< Byte 5 */ tmp = (uint8_t)((CID_Tab[1] & 0x00FF0000) >> 16); cardinfo->SD_cid.ProdName1 |= tmp << 8; /*!< Byte 6 */ tmp = (uint8_t)((CID_Tab[1] & 0x0000FF00) >> 8); cardinfo->SD_cid.ProdName1 |= tmp; /*!< Byte 7 */ tmp = (uint8_t)(CID_Tab[1] & 0x000000FF); cardinfo->SD_cid.ProdName2 = tmp; /*!< Byte 8 */ tmp = (uint8_t)((CID_Tab[2] & 0xFF000000) >> 24); cardinfo->SD_cid.ProdRev = tmp; /*!< Byte 9 */ tmp = (uint8_t)((CID_Tab[2] & 0x00FF0000) >> 16); cardinfo->SD_cid.ProdSN = tmp << 24; /*!< Byte 10 */ tmp = (uint8_t)((CID_Tab[2] & 0x0000FF00) >> 8); cardinfo->SD_cid.ProdSN |= tmp << 16; /*!< Byte 11 */ tmp = (uint8_t)(CID_Tab[2] & 0x000000FF); cardinfo->SD_cid.ProdSN |= tmp << 8; /*!< Byte 12 */ tmp = (uint8_t)((CID_Tab[3] & 0xFF000000) >> 24); cardinfo->SD_cid.ProdSN |= tmp; /*!< Byte 13 */ tmp = (uint8_t)((CID_Tab[3] & 0x00FF0000) >> 16); cardinfo->SD_cid.Reserved1 |= (tmp & 0xF0) >> 4; cardinfo->SD_cid.ManufactDate = (tmp & 0x0F) << 8; /*!< Byte 14 */ tmp = (uint8_t)((CID_Tab[3] & 0x0000FF00) >> 8); cardinfo->SD_cid.ManufactDate |= tmp; /*!< Byte 15 */ tmp = (uint8_t)(CID_Tab[3] & 0x000000FF); cardinfo->SD_cid.CID_CRC = (tmp & 0xFE) >> 1; cardinfo->SD_cid.Reserved2 = 1; return(errorstatus); } /** * @brief Enables wide bus opeartion for the requeseted card if supported by * card. * @param WideMode: Specifies the SD card wide bus mode. * This parameter can be one of the following values: * @arg SDIO_BusWide_8b: 8-bit data transfer (Only for MMC) * @arg SDIO_BusWide_4b: 4-bit data transfer * @arg SDIO_BusWide_1b: 1-bit data transfer * @retval SD_Error: SD Card Error code. */ SD_Error SD_GetCardStatus(SD_CardStatus *cardstatus) { SD_Error errorstatus = SD_OK; uint8_t tmp = 0; errorstatus = SD_SendSDStatus((uint32_t *)SDSTATUS_Tab); if (errorstatus != SD_OK) { return(errorstatus); } /*!< Byte 0 */ tmp = (uint8_t)((SDSTATUS_Tab[0] & 0xC0) >> 6); cardstatus->DAT_BUS_WIDTH = tmp; /*!< Byte 0 */ tmp = (uint8_t)((SDSTATUS_Tab[0] & 0x20) >> 5); cardstatus->SECURED_MODE = tmp; /*!< Byte 2 */ tmp = (uint8_t)((SDSTATUS_Tab[2] & 0xFF)); cardstatus->SD_CARD_TYPE = tmp << 8; /*!< Byte 3 */ tmp = (uint8_t)((SDSTATUS_Tab[3] & 0xFF)); cardstatus->SD_CARD_TYPE |= tmp; /*!< Byte 4 */ tmp = (uint8_t)(SDSTATUS_Tab[4] & 0xFF); cardstatus->SIZE_OF_PROTECTED_AREA = tmp << 24; /*!< Byte 5 */ tmp = (uint8_t)(SDSTATUS_Tab[5] & 0xFF); cardstatus->SIZE_OF_PROTECTED_AREA |= tmp << 16; /*!< Byte 6 */ tmp = (uint8_t)(SDSTATUS_Tab[6] & 0xFF); cardstatus->SIZE_OF_PROTECTED_AREA |= tmp << 8; /*!< Byte 7 */ tmp = (uint8_t)(SDSTATUS_Tab[7] & 0xFF); cardstatus->SIZE_OF_PROTECTED_AREA |= tmp; /*!< Byte 8 */ tmp = (uint8_t)((SDSTATUS_Tab[8] & 0xFF)); cardstatus->SPEED_CLASS = tmp; /*!< Byte 9 */ tmp = (uint8_t)((SDSTATUS_Tab[9] & 0xFF)); cardstatus->PERFORMANCE_MOVE = tmp; /*!< Byte 10 */ tmp = (uint8_t)((SDSTATUS_Tab[10] & 0xF0) >> 4); cardstatus->AU_SIZE = tmp; /*!< Byte 11 */ tmp = (uint8_t)(SDSTATUS_Tab[11] & 0xFF); cardstatus->ERASE_SIZE = tmp << 8; /*!< Byte 12 */ tmp = (uint8_t)(SDSTATUS_Tab[12] & 0xFF); cardstatus->ERASE_SIZE |= tmp; /*!< Byte 13 */ tmp = (uint8_t)((SDSTATUS_Tab[13] & 0xFC) >> 2); cardstatus->ERASE_TIMEOUT = tmp; /*!< Byte 13 */ tmp = (uint8_t)((SDSTATUS_Tab[13] & 0x3)); cardstatus->ERASE_OFFSET = tmp; return(errorstatus); } /** * @brief Enables wide bus opeartion for the requeseted card if supported by * card. * @param WideMode: Specifies the SD card wide bus mode. * This parameter can be one of the following values: * @arg SDIO_BusWide_8b: 8-bit data transfer (Only for MMC) * @arg SDIO_BusWide_4b: 4-bit data transfer * @arg SDIO_BusWide_1b: 1-bit data transfer * @retval SD_Error: SD Card Error code. */ SD_Error SD_EnableWideBusOperation(uint32_t WideMode) { SD_Error errorstatus = SD_OK; /*!< MMC Card doesn't support this feature */ if (SDIO_MULTIMEDIA_CARD == CardType) { errorstatus = SD_UNSUPPORTED_FEATURE; return(errorstatus); } else if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType)) { if (SDIO_BusWide_8b == WideMode) { errorstatus = SD_UNSUPPORTED_FEATURE; return(errorstatus); } else if (SDIO_BusWide_4b == WideMode) { errorstatus = SDEnWideBus(ENABLE); if (SD_OK == errorstatus) { /*!< Configure the SDIO peripheral */ SDIO_InitStructure.SDIO_ClockDiv = SDIO_TRANSFER_CLK_DIV; SDIO_InitStructure.SDIO_ClockEdge = SDIO_ClockEdge_Rising; SDIO_InitStructure.SDIO_ClockBypass = SDIO_ClockBypass_Disable; SDIO_InitStructure.SDIO_ClockPowerSave = SDIO_ClockPowerSave_Disable; SDIO_InitStructure.SDIO_BusWide = SDIO_BusWide_4b; SDIO_InitStructure.SDIO_HardwareFlowControl = SDIO_HardwareFlowControl_Disable; SDIO_Init(&SDIO_InitStructure); } } else { errorstatus = SDEnWideBus(DISABLE); if (SD_OK == errorstatus) { /*!< Configure the SDIO peripheral */ SDIO_InitStructure.SDIO_ClockDiv = SDIO_TRANSFER_CLK_DIV; SDIO_InitStructure.SDIO_ClockEdge = SDIO_ClockEdge_Rising; SDIO_InitStructure.SDIO_ClockBypass = SDIO_ClockBypass_Disable; SDIO_InitStructure.SDIO_ClockPowerSave = SDIO_ClockPowerSave_Disable; SDIO_InitStructure.SDIO_BusWide = SDIO_BusWide_1b; SDIO_InitStructure.SDIO_HardwareFlowControl = SDIO_HardwareFlowControl_Disable; SDIO_Init(&SDIO_InitStructure); } } } return(errorstatus); } /** * @brief Selects od Deselects the corresponding card. * @param addr: Address of the Card to be selected. * @retval SD_Error: SD Card Error code. */ SD_Error SD_SelectDeselect(uint64_t addr) { SD_Error errorstatus = SD_OK; /*!< Send CMD7 SDIO_SEL_DESEL_CARD */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)addr; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEL_DESEL_CARD; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_SEL_DESEL_CARD); return(errorstatus); } /** * @brief Allows to read one block from a specified address in a card. The Data * transfer can be managed by DMA mode or Polling mode. * @note This operation should be followed by two functions to check if the * DMA Controller and SD Card status. * - SD_ReadWaitOperation(): this function insure that the DMA * controller has finished all data transfer. * - SD_GetStatus(): to check that the SD Card has finished the * data transfer and it is ready for data. * @param readbuff: pointer to the buffer that will contain the received data * @param ReadAddr: Address from where data are to be read. * @param BlockSize: the SD card Data block size. The Block size should be 512. * @retval SD_Error: SD Card Error code. */ SD_Error SD_ReadBlock(uint8_t *readbuff, uint64_t ReadAddr, uint16_t BlockSize) { SD_Error errorstatus = SD_OK; #if defined (SD_POLLING_MODE) uint32_t count = 0, *tempbuff = (uint32_t *)readbuff; #endif TransferError = SD_OK; TransferEnd = 0; StopCondition = 0; SDIO->DCTRL = 0x0; #if defined (SD_DMA_MODE) SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE); SDIO_DMACmd(ENABLE); SD_LowLevel_DMA_RxConfig((uint32_t *)readbuff, BlockSize); #endif if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) { BlockSize = 512; ReadAddr /= 512; } /* Set Block Size for Card */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); uint32_t timeout = SDIO_CMD0TIMEOUT; /*!< 10000 */ while ((timeout > 0) && (SDIO_GetFlagStatus(SDIO_FLAG_CMDSENT) == RESET)) { timeout--; } errorstatus = CmdResp1Error(SD_CMD_SET_BLOCKLEN); if (SD_OK != errorstatus) { return(errorstatus); } SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; SDIO_DataInitStructure.SDIO_DataLength = BlockSize; SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) 9 << 4; SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToSDIO; SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable; SDIO_DataConfig(&SDIO_DataInitStructure); /*!< Send CMD17 READ_SINGLE_BLOCK */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)ReadAddr; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_READ_SINGLE_BLOCK; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_READ_SINGLE_BLOCK); if (errorstatus != SD_OK) { return(errorstatus); } #if defined (SD_POLLING_MODE) /*!< In case of single block transfer, no need of stop transfer at all.*/ /*!< Polling mode */ while (!(SDIO->STA &(SDIO_FLAG_RXOVERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_DBCKEND | SDIO_FLAG_STBITERR))) { if (SDIO_GetFlagStatus(SDIO_FLAG_RXFIFOHF) != RESET) { for (count = 0; count < 8; count++) { *(tempbuff + count) = SDIO_ReadData(); } tempbuff += 8; } } if (SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET) { SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT); errorstatus = SD_DATA_TIMEOUT; return(errorstatus); } else if (SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET) { SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL); errorstatus = SD_DATA_CRC_FAIL; return(errorstatus); } else if (SDIO_GetFlagStatus(SDIO_FLAG_RXOVERR) != RESET) { SDIO_ClearFlag(SDIO_FLAG_RXOVERR); errorstatus = SD_RX_OVERRUN; return(errorstatus); } else if (SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET) { SDIO_ClearFlag(SDIO_FLAG_STBITERR); errorstatus = SD_START_BIT_ERR; return(errorstatus); } count = SD_DATATIMEOUT; while ((SDIO_GetFlagStatus(SDIO_FLAG_RXDAVL) != RESET) && (count > 0)) { *tempbuff = SDIO_ReadData(); tempbuff++; count--; } /*!< Clear all the static flags */ SDIO_ClearFlag(SDIO_STATIC_FLAGS); #endif DMAEndOfTransfer = 0; return(errorstatus); } /** * @brief Allows to read blocks from a specified address in a card. The Data * transfer can be managed by DMA mode or Polling mode. * @note This operation should be followed by two functions to check if the * DMA Controller and SD Card status. * - SD_ReadWaitOperation(): this function insure that the DMA * controller has finished all data transfer. * - SD_GetStatus(): to check that the SD Card has finished the * data transfer and it is ready for data. * @param readbuff: pointer to the buffer that will contain the received data. * @param ReadAddr: Address from where data are to be read. * @param BlockSize: the SD card Data block size. The Block size should be 512. * @param NumberOfBlocks: number of blocks to be read. * @retval SD_Error: SD Card Error code. */ SD_Error SD_ReadMultiBlocks(uint8_t *readbuff, uint64_t ReadAddr, uint16_t BlockSize, uint32_t NumberOfBlocks) { SD_Error errorstatus = SD_OK; TransferError = SD_OK; TransferEnd = 0; StopCondition = 1; SDIO->DCTRL = 0x0; SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE); SD_LowLevel_DMA_RxConfig((uint32_t *)readbuff, (NumberOfBlocks * BlockSize)); SDIO_DMACmd(ENABLE); if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) { BlockSize = 512; ReadAddr /= 512; } /*!< Set Block Size for Card */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); uint32_t timeout = SDIO_CMD0TIMEOUT; /*!< 10000 */ while ((timeout > 0) && (SDIO_GetFlagStatus(SDIO_FLAG_CMDSENT) == RESET)) { timeout--; } errorstatus = CmdResp1Error(SD_CMD_SET_BLOCKLEN); if (SD_OK != errorstatus) { return(errorstatus); } SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; SDIO_DataInitStructure.SDIO_DataLength = NumberOfBlocks * BlockSize; SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) 9 << 4; SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToSDIO; SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable; SDIO_DataConfig(&SDIO_DataInitStructure); /*!< Send CMD18 READ_MULT_BLOCK with argument data address */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)ReadAddr; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_READ_MULT_BLOCK; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_READ_MULT_BLOCK); if (errorstatus != SD_OK) { return(errorstatus); } DMAEndOfTransfer = 0; return(errorstatus); } /** * @brief This function waits until the SDIO DMA data transfer is finished. * This function should be called after SDIO_ReadMultiBlocks() function * to insure that all data sent by the card are already transferred by * the DMA controller. * @param None. * @retval SD_Error: SD Card Error code. */ SD_Error SD_WaitReadOperation(void) { SD_Error errorstatus = SD_OK; uint32_t timeout; timeout = SD_DATATIMEOUT; while ((DMAEndOfTransfer == 0x00) && (TransferEnd == 0) && (TransferError == SD_OK) && (timeout > 0)) { timeout--; } DMAEndOfTransfer = 0x00; timeout = SD_DATATIMEOUT; while(((SDIO->STA & SDIO_FLAG_RXACT)) && (timeout > 0)) { timeout--; } if (StopCondition == 1) { errorstatus = SD_StopTransfer(); StopCondition = 0; } if ((timeout == 0) && (errorstatus == SD_OK)) { errorstatus = SD_DATA_TIMEOUT; } /*!< Clear all the static flags */ SDIO_ClearFlag(SDIO_STATIC_FLAGS); if (TransferError != SD_OK) { return(TransferError); } else { return(errorstatus); } } /** * @brief Allows to write one block starting from a specified address in a card. * The Data transfer can be managed by DMA mode or Polling mode. * @note This operation should be followed by two functions to check if the * DMA Controller and SD Card status. * - SD_ReadWaitOperation(): this function insure that the DMA * controller has finished all data transfer. * - SD_GetStatus(): to check that the SD Card has finished the * data transfer and it is ready for data. * @param writebuff: pointer to the buffer that contain the data to be transferred. * @param WriteAddr: Address from where data are to be read. * @param BlockSize: the SD card Data block size. The Block size should be 512. * @retval SD_Error: SD Card Error code. */ SD_Error SD_WriteBlock(uint8_t *writebuff, uint64_t WriteAddr, uint16_t BlockSize) { SD_Error errorstatus = SD_OK; #if defined (SD_POLLING_MODE) uint32_t bytestransferred = 0, count = 0, restwords = 0; uint32_t *tempbuff = (uint32_t *)writebuff; #endif TransferError = SD_OK; TransferEnd = 0; StopCondition = 0; SDIO->DCTRL = 0x0; #if defined (SD_DMA_MODE) SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE); SD_LowLevel_DMA_TxConfig((uint32_t *)writebuff, BlockSize); SDIO_DMACmd(ENABLE); #endif if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) { BlockSize = 512; WriteAddr /= 512; } /* Set Block Size for Card */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_SET_BLOCKLEN); if (SD_OK != errorstatus) { return(errorstatus); } /*!< Send CMD24 WRITE_SINGLE_BLOCK */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)WriteAddr; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_WRITE_SINGLE_BLOCK; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_WRITE_SINGLE_BLOCK); if (errorstatus != SD_OK) { return(errorstatus); } SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; SDIO_DataInitStructure.SDIO_DataLength = BlockSize; SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) 9 << 4; SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard; SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable; SDIO_DataConfig(&SDIO_DataInitStructure); /*!< In case of single data block transfer no need of stop command at all */ #if defined (SD_POLLING_MODE) while (!(SDIO->STA & (SDIO_FLAG_DBCKEND | SDIO_FLAG_TXUNDERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_STBITERR))) { if (SDIO_GetFlagStatus(SDIO_FLAG_TXFIFOHE) != RESET) { if ((512 - bytestransferred) < 32) { restwords = ((512 - bytestransferred) % 4 == 0) ? ((512 - bytestransferred) / 4) : (( 512 - bytestransferred) / 4 + 1); for (count = 0; count < restwords; count++, tempbuff++, bytestransferred += 4) { SDIO_WriteData(*tempbuff); } } else { for (count = 0; count < 8; count++) { SDIO_WriteData(*(tempbuff + count)); } tempbuff += 8; bytestransferred += 32; } } } if (SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET) { SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT); errorstatus = SD_DATA_TIMEOUT; return(errorstatus); } else if (SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET) { SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL); errorstatus = SD_DATA_CRC_FAIL; return(errorstatus); } else if (SDIO_GetFlagStatus(SDIO_FLAG_TXUNDERR) != RESET) { SDIO_ClearFlag(SDIO_FLAG_TXUNDERR); errorstatus = SD_TX_UNDERRUN; return(errorstatus); } else if (SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET) { SDIO_ClearFlag(SDIO_FLAG_STBITERR); errorstatus = SD_START_BIT_ERR; return(errorstatus); } #endif DMAEndOfTransfer = 0; return(errorstatus); } /** * @brief Allows to write blocks starting from a specified address in a card. * The Data transfer can be managed by DMA mode only. * @note This operation should be followed by two functions to check if the * DMA Controller and SD Card status. * - SD_ReadWaitOperation(): this function insure that the DMA * controller has finished all data transfer. * - SD_GetStatus(): to check that the SD Card has finished the * data transfer and it is ready for data. * @param WriteAddr: Address from where data are to be read. * @param writebuff: pointer to the buffer that contain the data to be transferred. * @param BlockSize: the SD card Data block size. The Block size should be 512. * @param NumberOfBlocks: number of blocks to be written. * @retval SD_Error: SD Card Error code. */ SD_Error SD_WriteMultiBlocks(uint8_t *writebuff, uint64_t WriteAddr, uint16_t BlockSize, uint32_t NumberOfBlocks) { SD_Error errorstatus = SD_OK; TransferError = SD_OK; TransferEnd = 0; StopCondition = 1; SDIO->DCTRL = 0x0; SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE); SD_LowLevel_DMA_TxConfig((uint32_t *)writebuff, (NumberOfBlocks * BlockSize)); SDIO_DMACmd(ENABLE); if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) { BlockSize = 512; WriteAddr /= 512; } /* Set Block Size for Card */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_SET_BLOCKLEN); if (SD_OK != errorstatus) { return(errorstatus); } /*!< To improve performance */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) (RCA << 16); SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_APP_CMD); if (errorstatus != SD_OK) { return(errorstatus); } /*!< To improve performance */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)NumberOfBlocks; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCK_COUNT; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_SET_BLOCK_COUNT); if (errorstatus != SD_OK) { return(errorstatus); } /*!< Send CMD25 WRITE_MULT_BLOCK with argument data address */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)WriteAddr; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_WRITE_MULT_BLOCK; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_WRITE_MULT_BLOCK); if (SD_OK != errorstatus) { return(errorstatus); } SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; SDIO_DataInitStructure.SDIO_DataLength = NumberOfBlocks * BlockSize; SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) 9 << 4; SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard; SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable; SDIO_DataConfig(&SDIO_DataInitStructure); DMAEndOfTransfer = 0; return(errorstatus); } /** * @brief This function waits until the SDIO DMA data transfer is finished. * This function should be called after SDIO_WriteBlock() and * SDIO_WriteMultiBlocks() function to insure that all data sent by the * card are already transferred by the DMA controller. * @param None. * @retval SD_Error: SD Card Error code. */ SD_Error SD_WaitWriteOperation(void) { SD_Error errorstatus = SD_OK; uint32_t timeout; timeout = SD_DATATIMEOUT; while ((DMAEndOfTransfer == 0x00) && (TransferEnd == 0) && (TransferError == SD_OK) && (timeout > 0)) { if (DMA_GetITStatus(DMA2_Stream3, DMA_IT_TCIF3) == 1) { DMAEndOfTransfer = 1; /// clear the interrupt bits DMA_ClearITPendingBit(DMA2_Stream3, DMA_IT_TCIF3); } timeout--; } timeout = SD_DATATIMEOUT; while((SDIO->DCOUNT != 0) && (timeout > 0)) { timeout--; } if (StopCondition == 1) { errorstatus = SD_StopTransfer(); StopCondition = 0; } if ((timeout == 0) && (errorstatus == SD_OK)) { errorstatus = SD_DATA_TIMEOUT; } /*!< Clear all the static flags */ SDIO_ClearFlag(SDIO_STATIC_FLAGS); if (TransferError != SD_OK) { return(TransferError); } else { return(errorstatus); } } /** * @brief Gets the cuurent data transfer state. * @param None * @retval SDTransferState: Data Transfer state. * This value can be: * - SD_TRANSFER_OK: No data transfer is acting * - SD_TRANSFER_BUSY: Data transfer is acting */ SDTransferState SD_GetTransferState(void) { if (SDIO->STA & (SDIO_FLAG_TXACT | SDIO_FLAG_RXACT)) { return(SD_TRANSFER_BUSY); } else { return(SD_TRANSFER_OK); } } /** * @brief Aborts an ongoing data transfer. * @param None * @retval SD_Error: SD Card Error code. */ SD_Error SD_StopTransfer(void) { SD_Error errorstatus = SD_OK; /*!< Send CMD12 STOP_TRANSMISSION */ SDIO_CmdInitStructure.SDIO_Argument = 0x0; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_STOP_TRANSMISSION; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_STOP_TRANSMISSION); return(errorstatus); } /** * @brief Allows to erase memory area specified for the given card. * @param startaddr: the start address. * @param endaddr: the end address. * @retval SD_Error: SD Card Error code. */ SD_Error SD_Erase(uint64_t startaddr, uint64_t endaddr) { SD_Error errorstatus = SD_OK; uint32_t delay = 0; __IO uint32_t maxdelay = 0; uint8_t cardstate = 0; /*!< Check if the card coomnd class supports erase command */ if (((CSD_Tab[1] >> 20) & SD_CCCC_ERASE) == 0) { errorstatus = SD_REQUEST_NOT_APPLICABLE; return(errorstatus); } maxdelay = 120000 / ((SDIO->CLKCR & 0xFF) + 2); if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED) { errorstatus = SD_LOCK_UNLOCK_FAILED; return(errorstatus); } if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) { startaddr /= 512; endaddr /= 512; } /*!< According to sd-card spec 1.0 ERASE_GROUP_START (CMD32) and erase_group_end(CMD33) */ if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType)) { /*!< Send CMD32 SD_ERASE_GRP_START with argument as addr */ SDIO_CmdInitStructure.SDIO_Argument =(uint32_t)startaddr; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_ERASE_GRP_START; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_SD_ERASE_GRP_START); if (errorstatus != SD_OK) { return(errorstatus); } /*!< Send CMD33 SD_ERASE_GRP_END with argument as addr */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)endaddr; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_ERASE_GRP_END; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_SD_ERASE_GRP_END); if (errorstatus != SD_OK) { return(errorstatus); } } /*!< Send CMD38 ERASE */ SDIO_CmdInitStructure.SDIO_Argument = 0; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_ERASE; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_ERASE); if (errorstatus != SD_OK) { return(errorstatus); } for (delay = 0; delay < maxdelay; delay++) {} /*!< Wait till the card is in programming state */ errorstatus = IsCardProgramming(&cardstate); delay = SD_DATATIMEOUT; while ((delay > 0) && (errorstatus == SD_OK) && ((SD_CARD_PROGRAMMING == cardstate) || (SD_CARD_RECEIVING == cardstate))) { errorstatus = IsCardProgramming(&cardstate); delay--; } return(errorstatus); } /** * @brief Returns the current card's status. * @param pcardstatus: pointer to the buffer that will contain the SD card * status (Card Status register). * @retval SD_Error: SD Card Error code. */ SD_Error SD_SendStatus(uint32_t *pcardstatus) { SD_Error errorstatus = SD_OK; if (pcardstatus == NULL) { errorstatus = SD_INVALID_PARAMETER; return(errorstatus); } SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEND_STATUS; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_SEND_STATUS); if (errorstatus != SD_OK) { return(errorstatus); } *pcardstatus = SDIO_GetResponse(SDIO_RESP1); return(errorstatus); } /** * @brief Returns the current SD card's status. * @param psdstatus: pointer to the buffer that will contain the SD card status * (SD Status register). * @retval SD_Error: SD Card Error code. */ SD_Error SD_SendSDStatus(uint32_t *psdstatus) { SD_Error errorstatus = SD_OK; uint32_t count = 0; if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED) { errorstatus = SD_LOCK_UNLOCK_FAILED; return(errorstatus); } /*!< Set block size for card if it is not equal to current block size for card. */ SDIO_CmdInitStructure.SDIO_Argument = 64; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_SET_BLOCKLEN); if (errorstatus != SD_OK) { return(errorstatus); } /*!< CMD55 */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_APP_CMD); if (errorstatus != SD_OK) { return(errorstatus); } SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; SDIO_DataInitStructure.SDIO_DataLength = 64; SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_64b; SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToSDIO; SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable; SDIO_DataConfig(&SDIO_DataInitStructure); /*!< Send ACMD13 SD_APP_STAUS with argument as card's RCA.*/ SDIO_CmdInitStructure.SDIO_Argument = 0; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_APP_STAUS; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_SD_APP_STAUS); if (errorstatus != SD_OK) { return(errorstatus); } while (!(SDIO->STA &(SDIO_FLAG_RXOVERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_DBCKEND | SDIO_FLAG_STBITERR))) { if (SDIO_GetFlagStatus(SDIO_FLAG_RXFIFOHF) != RESET) { for (count = 0; count < 8; count++) { *(psdstatus + count) = SDIO_ReadData(); } psdstatus += 8; } } if (SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET) { SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT); errorstatus = SD_DATA_TIMEOUT; return(errorstatus); } else if (SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET) { SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL); errorstatus = SD_DATA_CRC_FAIL; return(errorstatus); } else if (SDIO_GetFlagStatus(SDIO_FLAG_RXOVERR) != RESET) { SDIO_ClearFlag(SDIO_FLAG_RXOVERR); errorstatus = SD_RX_OVERRUN; return(errorstatus); } else if (SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET) { SDIO_ClearFlag(SDIO_FLAG_STBITERR); errorstatus = SD_START_BIT_ERR; return(errorstatus); } count = SD_DATATIMEOUT; while ((SDIO_GetFlagStatus(SDIO_FLAG_RXDAVL) != RESET) && (count > 0)) { *psdstatus = SDIO_ReadData(); psdstatus++; count--; } /*!< Clear all the static status flags*/ SDIO_ClearFlag(SDIO_STATIC_FLAGS); return(errorstatus); } /** * @brief Allows to process all the interrupts that are high. * @param None * @retval SD_Error: SD Card Error code. */ SD_Error SD_ProcessIRQSrc(void) { if (SDIO_GetITStatus(SDIO_IT_DATAEND) != RESET) { TransferError = SD_OK; SDIO_ClearITPendingBit(SDIO_IT_DATAEND); TransferEnd = 1; } else if (SDIO_GetITStatus(SDIO_IT_DCRCFAIL) != RESET) { SDIO_ClearITPendingBit(SDIO_IT_DCRCFAIL); TransferError = SD_DATA_CRC_FAIL; } else if (SDIO_GetITStatus(SDIO_IT_DTIMEOUT) != RESET) { SDIO_ClearITPendingBit(SDIO_IT_DTIMEOUT); TransferError = SD_DATA_TIMEOUT; } else if (SDIO_GetITStatus(SDIO_IT_RXOVERR) != RESET) { SDIO_ClearITPendingBit(SDIO_IT_RXOVERR); TransferError = SD_RX_OVERRUN; } else if (SDIO_GetITStatus(SDIO_IT_TXUNDERR) != RESET) { SDIO_ClearITPendingBit(SDIO_IT_TXUNDERR); TransferError = SD_TX_UNDERRUN; } else if (SDIO_GetITStatus(SDIO_IT_STBITERR) != RESET) { SDIO_ClearITPendingBit(SDIO_IT_STBITERR); TransferError = SD_START_BIT_ERR; } SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_TXFIFOHE | SDIO_IT_RXFIFOHF | SDIO_IT_TXUNDERR | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, DISABLE); return(TransferError); } /** * @brief This function waits until the SDIO DMA data transfer is finished. * @param None. * @retval None. */ void SD_ProcessDMAIRQ(void) { if(DMA2->LISR & SD_SDIO_DMA_FLAG_TCIF) { DMAEndOfTransfer = 0x01; DMA_ClearFlag(SD_SDIO_DMA_STREAM, SD_SDIO_DMA_FLAG_TCIF|SD_SDIO_DMA_FLAG_FEIF); } } /** * @brief Checks for error conditions for CMD0. * @param None * @retval SD_Error: SD Card Error code. */ static SD_Error CmdError(void) { SD_Error errorstatus = SD_OK; uint32_t timeout; timeout = SDIO_CMD0TIMEOUT; /*!< 10000 */ while ((timeout > 0) && (SDIO_GetFlagStatus(SDIO_FLAG_CMDSENT) == RESET)) { timeout--; } if (timeout == 0) { errorstatus = SD_CMD_RSP_TIMEOUT; return(errorstatus); } /*!< Clear all the static flags */ SDIO_ClearFlag(SDIO_STATIC_FLAGS); return(errorstatus); } /** * @brief Checks for error conditions for R7 response. * @param None * @retval SD_Error: SD Card Error code. */ static SD_Error CmdResp7Error(void) { SD_Error errorstatus = SD_OK; uint32_t status; uint32_t timeout = SDIO_CMD0TIMEOUT; status = SDIO->STA; while (!(status & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)) && (timeout > 0)) { timeout--; status = SDIO->STA; } if ((timeout == 0) || (status & SDIO_FLAG_CTIMEOUT)) { /*!< Card is not V2.0 complient or card does not support the set voltage range */ errorstatus = SD_CMD_RSP_TIMEOUT; SDIO_ClearFlag(SDIO_FLAG_CTIMEOUT); return(errorstatus); } if (status & SDIO_FLAG_CMDREND) { /*!< Card is SD V2.0 compliant */ errorstatus = SD_OK; SDIO_ClearFlag(SDIO_FLAG_CMDREND); return(errorstatus); } return(errorstatus); } /** * @brief Checks for error conditions for R1 response. * @param cmd: The sent command index. * @retval SD_Error: SD Card Error code. */ static SD_Error CmdResp1Error(uint8_t cmd) { SD_Error errorstatus = SD_OK; uint32_t status; uint32_t response_r1; status = SDIO->STA; while (!(status & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT))) { status = SDIO->STA; } if (status & SDIO_FLAG_CTIMEOUT) { errorstatus = SD_CMD_RSP_TIMEOUT; SDIO_ClearFlag(SDIO_FLAG_CTIMEOUT); return(errorstatus); } else if (status & SDIO_FLAG_CCRCFAIL) { errorstatus = SD_CMD_CRC_FAIL; SDIO_ClearFlag(SDIO_FLAG_CCRCFAIL); return(errorstatus); } /*!< Check response received is of desired command */ if (SDIO_GetCommandResponse() != cmd) { errorstatus = SD_ILLEGAL_CMD; return(errorstatus); } /*!< Clear all the static flags */ SDIO_ClearFlag(SDIO_STATIC_FLAGS); /*!< We have received response, retrieve it for analysis */ response_r1 = SDIO_GetResponse(SDIO_RESP1); if ((response_r1 & SD_OCR_ERRORBITS) == SD_ALLZERO) { return(errorstatus); } if (response_r1 & SD_OCR_ADDR_OUT_OF_RANGE) { return(SD_ADDR_OUT_OF_RANGE); } if (response_r1 & SD_OCR_ADDR_MISALIGNED) { return(SD_ADDR_MISALIGNED); } if (response_r1 & SD_OCR_BLOCK_LEN_ERR) { return(SD_BLOCK_LEN_ERR); } if (response_r1 & SD_OCR_ERASE_SEQ_ERR) { return(SD_ERASE_SEQ_ERR); } if (response_r1 & SD_OCR_BAD_ERASE_PARAM) { return(SD_BAD_ERASE_PARAM); } if (response_r1 & SD_OCR_WRITE_PROT_VIOLATION) { return(SD_WRITE_PROT_VIOLATION); } if (response_r1 & SD_OCR_LOCK_UNLOCK_FAILED) { return(SD_LOCK_UNLOCK_FAILED); } if (response_r1 & SD_OCR_COM_CRC_FAILED) { return(SD_COM_CRC_FAILED); } if (response_r1 & SD_OCR_ILLEGAL_CMD) { return(SD_ILLEGAL_CMD); } if (response_r1 & SD_OCR_CARD_ECC_FAILED) { return(SD_CARD_ECC_FAILED); } if (response_r1 & SD_OCR_CC_ERROR) { return(SD_CC_ERROR); } if (response_r1 & SD_OCR_GENERAL_UNKNOWN_ERROR) { return(SD_GENERAL_UNKNOWN_ERROR); } if (response_r1 & SD_OCR_STREAM_READ_UNDERRUN) { return(SD_STREAM_READ_UNDERRUN); } if (response_r1 & SD_OCR_STREAM_WRITE_OVERRUN) { return(SD_STREAM_WRITE_OVERRUN); } if (response_r1 & SD_OCR_CID_CSD_OVERWRIETE) { return(SD_CID_CSD_OVERWRITE); } if (response_r1 & SD_OCR_WP_ERASE_SKIP) { return(SD_WP_ERASE_SKIP); } if (response_r1 & SD_OCR_CARD_ECC_DISABLED) { return(SD_CARD_ECC_DISABLED); } if (response_r1 & SD_OCR_ERASE_RESET) { return(SD_ERASE_RESET); } if (response_r1 & SD_OCR_AKE_SEQ_ERROR) { return(SD_AKE_SEQ_ERROR); } return(errorstatus); } /** * @brief Checks for error conditions for R3 (OCR) response. * @param None * @retval SD_Error: SD Card Error code. */ static SD_Error CmdResp3Error(void) { SD_Error errorstatus = SD_OK; uint32_t status; status = SDIO->STA; while (!(status & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT))) { status = SDIO->STA; } if (status & SDIO_FLAG_CTIMEOUT) { errorstatus = SD_CMD_RSP_TIMEOUT; SDIO_ClearFlag(SDIO_FLAG_CTIMEOUT); return(errorstatus); } /*!< Clear all the static flags */ SDIO_ClearFlag(SDIO_STATIC_FLAGS); return(errorstatus); } /** * @brief Checks for error conditions for R2 (CID or CSD) response. * @param None * @retval SD_Error: SD Card Error code. */ static SD_Error CmdResp2Error(void) { SD_Error errorstatus = SD_OK; uint32_t status; status = SDIO->STA; while (!(status & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CTIMEOUT | SDIO_FLAG_CMDREND))) { status = SDIO->STA; } if (status & SDIO_FLAG_CTIMEOUT) { errorstatus = SD_CMD_RSP_TIMEOUT; SDIO_ClearFlag(SDIO_FLAG_CTIMEOUT); return(errorstatus); } else if (status & SDIO_FLAG_CCRCFAIL) { errorstatus = SD_CMD_CRC_FAIL; SDIO_ClearFlag(SDIO_FLAG_CCRCFAIL); return(errorstatus); } /*!< Clear all the static flags */ SDIO_ClearFlag(SDIO_STATIC_FLAGS); return(errorstatus); } /** * @brief Checks for error conditions for R6 (RCA) response. * @param cmd: The sent command index. * @param prca: pointer to the variable that will contain the SD card relative * address RCA. * @retval SD_Error: SD Card Error code. */ static SD_Error CmdResp6Error(uint8_t cmd, uint16_t *prca) { SD_Error errorstatus = SD_OK; uint32_t status; uint32_t response_r1; status = SDIO->STA; while (!(status & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CTIMEOUT | SDIO_FLAG_CMDREND))) { status = SDIO->STA; } if (status & SDIO_FLAG_CTIMEOUT) { errorstatus = SD_CMD_RSP_TIMEOUT; SDIO_ClearFlag(SDIO_FLAG_CTIMEOUT); return(errorstatus); } else if (status & SDIO_FLAG_CCRCFAIL) { errorstatus = SD_CMD_CRC_FAIL; SDIO_ClearFlag(SDIO_FLAG_CCRCFAIL); return(errorstatus); } /*!< Check response received is of desired command */ if (SDIO_GetCommandResponse() != cmd) { errorstatus = SD_ILLEGAL_CMD; return(errorstatus); } /*!< Clear all the static flags */ SDIO_ClearFlag(SDIO_STATIC_FLAGS); /*!< We have received response, retrieve it. */ response_r1 = SDIO_GetResponse(SDIO_RESP1); if (SD_ALLZERO == (response_r1 & (SD_R6_GENERAL_UNKNOWN_ERROR | SD_R6_ILLEGAL_CMD | SD_R6_COM_CRC_FAILED))) { *prca = (uint16_t) (response_r1 >> 16); return(errorstatus); } if (response_r1 & SD_R6_GENERAL_UNKNOWN_ERROR) { return(SD_GENERAL_UNKNOWN_ERROR); } if (response_r1 & SD_R6_ILLEGAL_CMD) { return(SD_ILLEGAL_CMD); } if (response_r1 & SD_R6_COM_CRC_FAILED) { return(SD_COM_CRC_FAILED); } return(errorstatus); } /** * @brief Enables or disables the SDIO wide bus mode. * @param NewState: new state of the SDIO wide bus mode. * This parameter can be: ENABLE or DISABLE. * @retval SD_Error: SD Card Error code. */ static SD_Error SDEnWideBus(FunctionalState NewState) { SD_Error errorstatus = SD_OK; uint32_t scr[2] = {0, 0}; if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED) { errorstatus = SD_LOCK_UNLOCK_FAILED; return(errorstatus); } /*!< Get SCR Register */ errorstatus = FindSCR(RCA, scr); if (errorstatus != SD_OK) { return(errorstatus); } /*!< If wide bus operation to be enabled */ if (NewState == ENABLE) { /*!< If requested card supports wide bus operation */ if ((scr[1] & SD_WIDE_BUS_SUPPORT) != SD_ALLZERO) { /*!< Send CMD55 APP_CMD with argument as card's RCA.*/ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_APP_CMD); if (errorstatus != SD_OK) { return(errorstatus); } /*!< Send ACMD6 APP_CMD with argument as 2 for wide bus mode */ SDIO_CmdInitStructure.SDIO_Argument = 0x2; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_SD_SET_BUSWIDTH; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_APP_SD_SET_BUSWIDTH); if (errorstatus != SD_OK) { return(errorstatus); } return(errorstatus); } else { errorstatus = SD_REQUEST_NOT_APPLICABLE; return(errorstatus); } } /*!< If wide bus operation to be disabled */ else { /*!< If requested card supports 1 bit mode operation */ if ((scr[1] & SD_SINGLE_BUS_SUPPORT) != SD_ALLZERO) { /*!< Send CMD55 APP_CMD with argument as card's RCA.*/ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_APP_CMD); if (errorstatus != SD_OK) { return(errorstatus); } /*!< Send ACMD6 APP_CMD with argument as 2 for wide bus mode */ SDIO_CmdInitStructure.SDIO_Argument = 0x00; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_SD_SET_BUSWIDTH; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_APP_SD_SET_BUSWIDTH); if (errorstatus != SD_OK) { return(errorstatus); } return(errorstatus); } else { errorstatus = SD_REQUEST_NOT_APPLICABLE; return(errorstatus); } } } /** * @brief Checks if the SD card is in programming state. * @param pstatus: pointer to the variable that will contain the SD card state. * @retval SD_Error: SD Card Error code. */ static SD_Error IsCardProgramming(uint8_t *pstatus) { SD_Error errorstatus = SD_OK; __IO uint32_t respR1 = 0, status = 0; SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEND_STATUS; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); status = SDIO->STA; while (!(status & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT))) { status = SDIO->STA; } if (status & SDIO_FLAG_CTIMEOUT) { errorstatus = SD_CMD_RSP_TIMEOUT; SDIO_ClearFlag(SDIO_FLAG_CTIMEOUT); return(errorstatus); } else if (status & SDIO_FLAG_CCRCFAIL) { errorstatus = SD_CMD_CRC_FAIL; SDIO_ClearFlag(SDIO_FLAG_CCRCFAIL); return(errorstatus); } status = (uint32_t)SDIO_GetCommandResponse(); /*!< Check response received is of desired command */ if (status != SD_CMD_SEND_STATUS) { errorstatus = SD_ILLEGAL_CMD; return(errorstatus); } /*!< Clear all the static flags */ SDIO_ClearFlag(SDIO_STATIC_FLAGS); /*!< We have received response, retrieve it for analysis */ respR1 = SDIO_GetResponse(SDIO_RESP1); /*!< Find out card status */ *pstatus = (uint8_t) ((respR1 >> 9) & 0x0000000F); if ((respR1 & SD_OCR_ERRORBITS) == SD_ALLZERO) { return(errorstatus); } if (respR1 & SD_OCR_ADDR_OUT_OF_RANGE) { return(SD_ADDR_OUT_OF_RANGE); } if (respR1 & SD_OCR_ADDR_MISALIGNED) { return(SD_ADDR_MISALIGNED); } if (respR1 & SD_OCR_BLOCK_LEN_ERR) { return(SD_BLOCK_LEN_ERR); } if (respR1 & SD_OCR_ERASE_SEQ_ERR) { return(SD_ERASE_SEQ_ERR); } if (respR1 & SD_OCR_BAD_ERASE_PARAM) { return(SD_BAD_ERASE_PARAM); } if (respR1 & SD_OCR_WRITE_PROT_VIOLATION) { return(SD_WRITE_PROT_VIOLATION); } if (respR1 & SD_OCR_LOCK_UNLOCK_FAILED) { return(SD_LOCK_UNLOCK_FAILED); } if (respR1 & SD_OCR_COM_CRC_FAILED) { return(SD_COM_CRC_FAILED); } if (respR1 & SD_OCR_ILLEGAL_CMD) { return(SD_ILLEGAL_CMD); } if (respR1 & SD_OCR_CARD_ECC_FAILED) { return(SD_CARD_ECC_FAILED); } if (respR1 & SD_OCR_CC_ERROR) { return(SD_CC_ERROR); } if (respR1 & SD_OCR_GENERAL_UNKNOWN_ERROR) { return(SD_GENERAL_UNKNOWN_ERROR); } if (respR1 & SD_OCR_STREAM_READ_UNDERRUN) { return(SD_STREAM_READ_UNDERRUN); } if (respR1 & SD_OCR_STREAM_WRITE_OVERRUN) { return(SD_STREAM_WRITE_OVERRUN); } if (respR1 & SD_OCR_CID_CSD_OVERWRIETE) { return(SD_CID_CSD_OVERWRITE); } if (respR1 & SD_OCR_WP_ERASE_SKIP) { return(SD_WP_ERASE_SKIP); } if (respR1 & SD_OCR_CARD_ECC_DISABLED) { return(SD_CARD_ECC_DISABLED); } if (respR1 & SD_OCR_ERASE_RESET) { return(SD_ERASE_RESET); } if (respR1 & SD_OCR_AKE_SEQ_ERROR) { return(SD_AKE_SEQ_ERROR); } return(errorstatus); } /** * @brief Find the SD card SCR register value. * @param rca: selected card address. * @param pscr: pointer to the buffer that will contain the SCR value. * @retval SD_Error: SD Card Error code. */ static SD_Error FindSCR(uint16_t rca, uint32_t *pscr) { uint32_t index = 0; SD_Error errorstatus = SD_OK; uint32_t tempscr[2] = {0, 0}; uint32_t timeout = 0; /*!< Set Block Size To 8 Bytes */ /*!< Send CMD55 APP_CMD with argument as card's RCA */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)8; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_SET_BLOCKLEN); if (errorstatus != SD_OK) { return(errorstatus); } /*!< Send CMD55 APP_CMD with argument as card's RCA */ SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_APP_CMD); if (errorstatus != SD_OK) { return(errorstatus); } SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; SDIO_DataInitStructure.SDIO_DataLength = 8; SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_8b; SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToSDIO; SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable; SDIO_DataConfig(&SDIO_DataInitStructure); /*!< Send ACMD51 SD_APP_SEND_SCR with argument as 0 */ SDIO_CmdInitStructure.SDIO_Argument = 0x0; SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_APP_SEND_SCR; SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short; SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No; SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable; SDIO_SendCommand(&SDIO_CmdInitStructure); errorstatus = CmdResp1Error(SD_CMD_SD_APP_SEND_SCR); if (errorstatus != SD_OK) { return(errorstatus); } while (!(SDIO->STA & (SDIO_FLAG_RXOVERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_DBCKEND | SDIO_FLAG_STBITERR))) { if (SDIO_GetFlagStatus(SDIO_FLAG_RXDAVL) != RESET) { *(tempscr + index) = SDIO_ReadData(); index++; } timeout++; if (timeout > 10000) { return SD_DATA_TIMEOUT; } } if (SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET) { SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT); errorstatus = SD_DATA_TIMEOUT; return(errorstatus); } else if (SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET) { SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL); errorstatus = SD_DATA_CRC_FAIL; return(errorstatus); } else if (SDIO_GetFlagStatus(SDIO_FLAG_RXOVERR) != RESET) { SDIO_ClearFlag(SDIO_FLAG_RXOVERR); errorstatus = SD_RX_OVERRUN; return(errorstatus); } else if (SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET) { SDIO_ClearFlag(SDIO_FLAG_STBITERR); errorstatus = SD_START_BIT_ERR; return(errorstatus); } /*!< Clear all the static flags */ SDIO_ClearFlag(SDIO_STATIC_FLAGS); *(pscr + 1) = ((tempscr[0] & SD_0TO7BITS) << 24) | ((tempscr[0] & SD_8TO15BITS) << 8) | ((tempscr[0] & SD_16TO23BITS) >> 8) | ((tempscr[0] & SD_24TO31BITS) >> 24); *(pscr) = ((tempscr[1] & SD_0TO7BITS) << 24) | ((tempscr[1] & SD_8TO15BITS) << 8) | ((tempscr[1] & SD_16TO23BITS) >> 8) | ((tempscr[1] & SD_24TO31BITS) >> 24); return(errorstatus); } /** * @brief DeInitializes the SDIO interface. * @param None * @retval None */ static void SD_LowLevel_DeInit(void) { GPIO_InitTypeDef GPIO_InitStructure; /*!< Disable SDIO Clock */ SDIO_ClockCmd(DISABLE); /*!< Set Power State to OFF */ SDIO_SetPowerState(SDIO_PowerState_OFF); /*!< DeInitializes the SDIO peripheral */ SDIO_DeInit(); /* Disable the SDIO APB2 Clock */ RCC_APB2PeriphClockCmd(RCC_APB2Periph_SDIO, DISABLE); GPIO_PinAFConfig(GPIOC, GPIO_PinSource8, GPIO_AF_MCO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource9, GPIO_AF_MCO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_MCO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_MCO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource12, GPIO_AF_MCO); GPIO_PinAFConfig(GPIOD, GPIO_PinSource2, GPIO_AF_MCO); /* Configure PC.08, PC.09, PC.10, PC.11 pins: D0, D1, D2, D3 pins */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; GPIO_Init(GPIOC, &GPIO_InitStructure); /* Configure PD.02 CMD line */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; GPIO_Init(GPIOD, &GPIO_InitStructure); /* Configure PC.12 pin: CLK pin */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; GPIO_Init(GPIOC, &GPIO_InitStructure); } /** * @brief Initializes the SD Card and put it into StandBy State (Ready for * data transfer). * @param None * @retval None */ static void SD_LowLevel_Init(void) { GPIO_InitTypeDef GPIO_InitStructure; #if !defined (SD_POLLING_MODE) NVIC_InitTypeDef NVIC_InitStructure; #endif /* GPIOC and GPIOD Periph clock enable */ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC | RCC_AHB1Periph_GPIOD | SD_DETECT_GPIO_CLK, ENABLE); GPIO_PinAFConfig(GPIOC, GPIO_PinSource8, GPIO_AF_SDIO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource9, GPIO_AF_SDIO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_SDIO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_SDIO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource12, GPIO_AF_SDIO); GPIO_PinAFConfig(GPIOD, GPIO_PinSource2, GPIO_AF_SDIO); /* Configure PC.08, PC.09, PC.10, PC.11 pins: D0, D1, D2, D3 pins */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_25MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; GPIO_Init(GPIOC, &GPIO_InitStructure); /* Configure PD.02 CMD line */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; GPIO_Init(GPIOD, &GPIO_InitStructure); /* Configure PC.12 pin: CLK pin */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; GPIO_Init(GPIOC, &GPIO_InitStructure); /*!< Configure SD_SPI_DETECT_PIN pin: SD Card detect pin */ GPIO_InitStructure.GPIO_Pin = SD_DETECT_PIN; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; GPIO_Init(SD_DETECT_GPIO_PORT, &GPIO_InitStructure); /* Enable the SDIO APB2 Clock */ RCC_APB2PeriphClockCmd(RCC_APB2Periph_SDIO, ENABLE); /* Enable the DMA2 Clock */ RCC_AHB1PeriphClockCmd(SD_SDIO_DMA_CLK, ENABLE); #if !defined (SD_POLLING_MODE) /* SDIO Interrupt ENABLE */ NVIC_InitStructure.NVIC_IRQChannel = SDIO_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); /* DMA2 STREAMx Interrupt ENABLE */ NVIC_InitStructure.NVIC_IRQChannel = SD_SDIO_DMA_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; NVIC_Init(&NVIC_InitStructure); #endif } /** * @brief Configures the DMA2 Channel4 for SDIO Tx request. * @param BufferSRC: pointer to the source buffer * @param BufferSize: buffer size * @retval None */ static void SD_LowLevel_DMA_TxConfig(uint32_t *BufferSRC, uint32_t BufferSize) { DMA_InitTypeDef SDDMA_InitStructure; DMA_ClearFlag(SD_SDIO_DMA_STREAM, SD_SDIO_DMA_FLAG_FEIF | SD_SDIO_DMA_FLAG_DMEIF | SD_SDIO_DMA_FLAG_TEIF | SD_SDIO_DMA_FLAG_HTIF | SD_SDIO_DMA_FLAG_TCIF); /* DMA2 Stream3 or Stream6 disable */ DMA_Cmd(SD_SDIO_DMA_STREAM, DISABLE); /* DMA2 Stream3 or Stream6 Config */ DMA_DeInit(SD_SDIO_DMA_STREAM); SDDMA_InitStructure.DMA_Channel = SD_SDIO_DMA_CHANNEL; SDDMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_ADDRESS; SDDMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)BufferSRC; SDDMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral; SDDMA_InitStructure.DMA_BufferSize = BufferSize; SDDMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; SDDMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; SDDMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word; SDDMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word; SDDMA_InitStructure.DMA_Mode = DMA_Mode_Normal; SDDMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh; SDDMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable; SDDMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full; SDDMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_INC4; SDDMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_INC4; DMA_Init(SD_SDIO_DMA_STREAM, &SDDMA_InitStructure); DMA_ITConfig(SD_SDIO_DMA_STREAM, DMA_IT_TC, ENABLE); DMA_FlowControllerConfig(SD_SDIO_DMA_STREAM, DMA_FlowCtrl_Peripheral); /* DMA2 Stream3 or Stream6 enable */ DMA_Cmd(SD_SDIO_DMA_STREAM, ENABLE); } /** * @brief Configures the DMA2 Channel4 for SDIO Rx request. * @param BufferDST: pointer to the destination buffer * @param BufferSize: buffer size * @retval None */ static void SD_LowLevel_DMA_RxConfig(uint32_t *BufferDST, uint32_t BufferSize) { DMA_InitTypeDef SDDMA_InitStructure; DMA_ClearFlag(SD_SDIO_DMA_STREAM, SD_SDIO_DMA_FLAG_FEIF | SD_SDIO_DMA_FLAG_DMEIF | SD_SDIO_DMA_FLAG_TEIF | SD_SDIO_DMA_FLAG_HTIF | SD_SDIO_DMA_FLAG_TCIF); /* DMA2 Stream3 or Stream6 disable */ DMA_Cmd(SD_SDIO_DMA_STREAM, DISABLE); /* DMA2 Stream3 or Stream6 Config */ DMA_DeInit(SD_SDIO_DMA_STREAM); SDDMA_InitStructure.DMA_Channel = SD_SDIO_DMA_CHANNEL; SDDMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_ADDRESS; SDDMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)BufferDST; SDDMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory; SDDMA_InitStructure.DMA_BufferSize = BufferSize; SDDMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; SDDMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; SDDMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word; SDDMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word; SDDMA_InitStructure.DMA_Mode = DMA_Mode_Normal; SDDMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh; SDDMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable; SDDMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full; SDDMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_INC4; SDDMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_INC4; DMA_Init(SD_SDIO_DMA_STREAM, &SDDMA_InitStructure); DMA_ITConfig(SD_SDIO_DMA_STREAM, DMA_IT_TC, ENABLE); DMA_FlowControllerConfig(SD_SDIO_DMA_STREAM, DMA_FlowCtrl_Peripheral); /* DMA2 Stream3 or Stream6 enable */ DMA_Cmd(SD_SDIO_DMA_STREAM, ENABLE); } /** * @brief This function handles SDIO global interrupt request. * @param None * @retval None */ void SDIO_IRQHandler(void) { #if !defined (SD_POLLING_MODE) /* Process All SDIO Interrupt Sources */ SD_ProcessIRQSrc(); #endif } /** * @brief This function handles DMA2 Stream3 or DMA2 Stream6 global interrupts * requests. * @param None * @retval None */ void SD_SDIO_DMA_IRQHANDLER(void) { #if !defined (SD_POLLING_MODE) /* Process DMA2 Stream3 or DMA2 Stream6 Interrupt Sources */ SD_ProcessDMAIRQ(); #endif } /*! * \brief initializes the sd card * \param the disk number * \return disk status */ DSTATUS disk_initialize (BYTE drv) { SD_Error result = SD_Init(); if (result == SD_OK) { SD_CardInfo card; Stat &= ~STA_NOINIT; /* Clear STA_NOINIT */ SD_GetCardInfo (&card); return RES_OK; } else { Stat = STA_NOINIT; /* Set STA_NOINIT */ return RES_NOTRDY; } } /*! * \brief get the sd cards Status * \param the disk number * \return disk status * \note Supports only single drive */ DSTATUS disk_status (BYTE drv) { Stat = STA_NOINIT; if ((drv == 0) && (SD_GetStatus() == 0)) { Stat &= ~STA_NOINIT; } return Stat; } /*! * \brief reads multiple sectors from the sd Card * \param drv: disk number * \param buff: pointer to the data buffer to store read data * \param sector: start sector number (LBA) * \param count: sector count */ DRESULT disk_read (BYTE drv, BYTE *buff, DWORD sector, BYTE count) { DWORD scratch [SD_BLOCKSIZE / 4]; /* Alignment ensured, need enough stack */ SD_Error sdstatus = SD_OK; if (drv != 0) { return RES_ERROR; } #if defined (SD_POLLING_MODE) while (count--) { sdstatus = SD_ReadBlock((BYTE *)scratch, (uint32_t )((sector + count) * SD_BLOCKSIZE), SD_BLOCKSIZE); if (sdstatus != SD_OK) { return RES_ERROR; } while(SD_GetStatus() == SD_TRANSFER_BUSY); memcpy (&buff[count * SD_BLOCKSIZE], scratch, SD_BLOCKSIZE); if (count == 0) { return RES_OK; } } #else if ((DWORD)buff & 3) /* DMA Alignment issue, do single up to aligned buffer */ { while (count--) { sdstatus = SD_ReadBlock((BYTE *)scratch, (uint32_t )((sector + count) * SD_BLOCKSIZE), SD_BLOCKSIZE); if (sdstatus != SD_OK) { return RES_ERROR; } /* Check if the Transfer is finished */ sdstatus = SD_WaitReadOperation(); while(SD_GetStatus() == SD_TRANSFER_BUSY); memcpy (&buff[count * SD_BLOCKSIZE], scratch, SD_BLOCKSIZE); if ((sdstatus == SD_OK) && (count == 0)) { return RES_OK; } else if (sdstatus != SD_OK) { return RES_ERROR; } } } else { sdstatus = SD_ReadMultiBlocks((BYTE *)buff, (uint32_t )(sector * SD_BLOCKSIZE), SD_BLOCKSIZE, count); if (sdstatus != SD_OK) { return RES_ERROR; } /* Check if the Transfer is finished */ sdstatus = SD_WaitReadOperation(); while(SD_GetStatus() == SD_TRANSFER_BUSY); if (sdstatus == SD_OK) { return RES_OK; } } #endif /* defined (SD_POLLING_MODE) */ return RES_ERROR; } /*! * \brief write multiple sectors to the sd Card * \param drv: Physical drive nmuber (0) * \param buff: Pointer to the data to be written * \param sector: Start sector number (LBA) * \param count: Sector count (1..255) * \note this function needs DMA access and is disabled if _READONLY is set */ #if _READONLY == 0 DRESULT disk_write(BYTE drv, const BYTE *buff, DWORD sector, BYTE count) { DWORD scratch [SD_BLOCKSIZE / 4]; /* Alignment ensured, need enough stack */ SD_Error sdstatus = SD_OK; if (drv != 0) { return RES_ERROR; } #if defined (SD_POLLING_MODE) while (count--) { memcpy (scratch, &buff[count * SD_BLOCKSIZE], SD_BLOCKSIZE); sdstatus = SD_WriteBlock((BYTE *)scratch, (uint32_t )((sector + count) * SD_BLOCKSIZE), SD_BLOCKSIZE); /* note that the SD_TX_UNDERRUN is sometimes triggered when the SDIO is configured * for polling mode (SD_POLLING_MODE), but testing shows, the block was correctly * written so no need to flag this event as an error. note that when running in * interrupt driven mode, the SD_TX_UNDERRUN interrupt is not used, which explains * why it only happens in polling mode. */ if ( (sdstatus != SD_OK) && (sdstatus != SD_TX_UNDERRUN) ) { return RES_ERROR; } while(SD_GetStatus() == SD_TRANSFER_BUSY); if (count == 0) { return RES_OK; } } #else if ((DWORD)buff & 3) /* DMA Alignment issue, do single up to aligned buffer */ { while (count--) { memcpy (scratch, &buff[count * SD_BLOCKSIZE], SD_BLOCKSIZE); sdstatus = SD_WriteBlock((BYTE *)scratch, (uint32_t )((sector + count) * SD_BLOCKSIZE), SD_BLOCKSIZE); if (sdstatus != SD_OK) { return RES_ERROR; } /* Check if the Transfer is finished */ sdstatus = SD_WaitWriteOperation(); while(SD_GetStatus() == SD_TRANSFER_BUSY); if ((sdstatus == SD_OK) && (count == 0)) { return RES_OK; } else if (sdstatus != SD_OK) { return RES_ERROR; } } } else { sdstatus = SD_WriteMultiBlocks((BYTE *)buff, (uint32_t )(sector * SD_BLOCKSIZE), SD_BLOCKSIZE, count); if (sdstatus != SD_OK) { return RES_ERROR; } /* Check if the Transfer is finished */ sdstatus = SD_WaitWriteOperation(); while(SD_GetStatus() == SD_TRANSFER_BUSY); if (sdstatus == SD_OK) { return RES_OK; } } #endif return RES_ERROR; } #endif /*! * \brief ioctl implementation * \param drv: Physical drive nmuber (0) * \param ctrl: Control code * \param buff: Buffer to send/receive control data * \return operation result * \note some ioctl's are not implemented because there is no need for them * or the API's differes */ DRESULT disk_ioctl(BYTE drv, BYTE ctrl, void *buff) { DRESULT res; SD_CardInfo SDCardInfo; res = RES_ERROR; if (Stat & STA_NOINIT) { return RES_NOTRDY; } switch (ctrl) { case CTRL_SYNC : /* Make sure that no pending write process */ res = RES_OK; break; case GET_SECTOR_COUNT : /* Get number of sectors on the disk (DWORD) */ if(drv == 0) { SD_GetCardInfo(&SDCardInfo); *(DWORD*)buff = SDCardInfo.CardCapacity / SD_BLOCKSIZE; } res = RES_OK; break; case GET_SECTOR_SIZE : /* Get R/W sector size (WORD) */ *(WORD*)buff = SD_BLOCKSIZE; res = RES_OK; break; case GET_BLOCK_SIZE : /* Get erase block size in unit of sector (DWORD) */ if(drv == 0) { * (DWORD*)buff = 32; } res = RES_OK; break; default: res = RES_PARERR; } return res; } /*! * \brief user provided timer function for FatFs module */ DWORD get_fattime(void) { /* No RTC supprt. Return a fixed value 2013/5/10 0:00:00 */ return ((DWORD)(2013 - 1980) << 25) /* Y */ | ((DWORD)5 << 21) /* M */ | ((DWORD)10 << 16) /* D */ | ((DWORD)0 << 11) /* H */ | ((DWORD)0 << 5) /* M */ | ((DWORD)0 >> 1); /* S */ } /********************************* end of mmc.c ****************************************/