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openblt/Target/Demo/ARMCM4_STM32_Olimex_STM32E4.../Boot/lib/fatfs/mmc.c

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/****************************************************************************************
| 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 <string.h>
#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)0x00010000)
#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};
/*!< 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++;
}
}
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 ****************************************/
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