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Diffstat (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Utilities/STM32_EVAL/Common/stm32_eval_sdio_sd.c')
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diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Utilities/STM32_EVAL/Common/stm32_eval_sdio_sd.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Utilities/STM32_EVAL/Common/stm32_eval_sdio_sd.c deleted file mode 100644 index 424d2d3..0000000 --- a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Utilities/STM32_EVAL/Common/stm32_eval_sdio_sd.c +++ /dev/null @@ -1,2502 +0,0 @@ -/** - ****************************************************************************** - * @file stm32_eval_sdio_sd.c - * @author MCD Application Team - * @version V4.5.0 - * @date 07-March-2011 - * @brief This file provides a set of functions needed to manage the SDIO SD - * Card memory mounted on STM32xx-EVAL board (refer to stm32_eval.h - * to know about the boards supporting this memory). - * - * - * @verbatim - * - * =================================================================== - * How to use this driver - * =================================================================== - * It implements a high level communication layer for read and write - * from/to this memory. The needed STM32 hardware resources (SDIO and - * GPIO) are defined in stm32xx_eval.h file, and the initialization is - * performed in SD_LowLevel_Init() function declared in stm32xx_eval.c - * file. - * You can easily tailor this driver to any other development board, - * by just adapting the defines for hardware resources and - * SD_LowLevel_Init() function. - * - * A - SD Card Initialization and configuration - * ============================================ - * - To initialize the SD Card, use the SD_Init() function. It - * Initializes the SD Card and put it into StandBy State (Ready - * for data transfer). This function provide the following operations: - * - * 1 - Apply the SD Card initialization process at 400KHz and check - * the SD Card type (Standard Capacity or High Capacity). You - * can change or adapt this frequency by adjusting the - * "SDIO_INIT_CLK_DIV" define inside the stm32xx_eval.h file. - * The SD Card frequency (SDIO_CK) is computed as follows: - * - * +---------------------------------------------+ - * | SDIO_CK = SDIOCLK / (SDIO_INIT_CLK_DIV + 2) | - * +---------------------------------------------+ - * - * In initialization mode and according to the SD Card standard, - * make sure that the SDIO_CK frequency don't exceed 400KHz. - * - * 2 - Get the SD CID and CSD data. All these information are - * managed by the SDCardInfo structure. This structure provide - * also ready computed SD Card capacity and Block size. - * - * 3 - Configure the SD Card Data transfer frequency. By Default, - * the card transfer frequency is set to 24MHz. You can change - * or adapt this frequency by adjusting the "SDIO_TRANSFER_CLK_DIV" - * define inside the stm32xx_eval.h file. - * The SD Card frequency (SDIO_CK) is computed as follows: - * - * +---------------------------------------------+ - * | SDIO_CK = SDIOCLK / (SDIO_INIT_CLK_DIV + 2) | - * +---------------------------------------------+ - * - * In transfer mode and according to the SD Card standard, - * make sure that the SDIO_CK frequency don't exceed 25MHz - * and 50MHz in High-speed mode switch. - * To be able to use a frequency higher than 24MHz, you should - * use the SDIO peripheral in bypass mode. Refer to the - * corresponding reference manual for more details. - * - * 4 - Select the corresponding SD Card according to the address - * read with the step 2. - * - * 5 - Configure the SD Card in wide bus mode: 4-bits data. - * - * B - SD Card Read operation - * ========================== - * - You can read SD card by using two function: SD_ReadBlock() and - * SD_ReadMultiBlocks() functions. These functions support only - * 512-byte block length. - * - The SD_ReadBlock() function read only one block (512-byte). This - * function can transfer the data using DMA controller or using - * polling mode. To select between DMA or polling mode refer to - * "SD_DMA_MODE" or "SD_POLLING_MODE" inside the stm32_eval_sdio_sd.h - * file and uncomment the corresponding line. By default the SD DMA - * mode is selected - * - The SD_ReadMultiBlocks() function read only mutli blocks (multiple - * of 512-byte). - * - Any read 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. - * - * - The DMA transfer is finished by the SDIO Data End interrupt. User - * has to call the SD_ProcessIRQ() function inside the SDIO_IRQHandler(). - * Don't forget to enable the SDIO_IRQn interrupt using the NVIC controller. - * - * C - SD Card Write operation - * =========================== - * - You can write SD card by using two function: SD_WriteBlock() and - * SD_WriteMultiBlocks() functions. These functions support only - * 512-byte block length. - * - The SD_WriteBlock() function write only one block (512-byte). This - * function can transfer the data using DMA controller or using - * polling mode. To select between DMA or polling mode refer to - * "SD_DMA_MODE" or "SD_POLLING_MODE" inside the stm32_eval_sdio_sd.h - * file and uncomment the corresponding line. By default the SD DMA - * mode is selected - * - The SD_WriteMultiBlocks() function write only mutli blocks (multiple - * of 512-byte). - * - Any write 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. - * - * - The DMA transfer is finished by the SDIO Data End interrupt. User - * has to call the SD_ProcessIRQ() function inside the SDIO_IRQHandler(). - * Don't forget to enable the SDIO_IRQn interrupt using the NVIC controller. - - * - * D - SD card status - * ================== - * - At any time, you can check the SD Card status and get the SD card - * state by using the SD_GetStatus() function. This function checks - * first if the SD card is still connected and then get the internal - * SD Card transfer state. - * - You can also get the SD card SD Status register by using the - * SD_SendSDStatus() function. - * - * E - Programming Model - * ===================== - * Status = SD_Init(); // Initialization Step as described in section A - * - * // 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); - * - * // Write operation as described in Section C - * Status = SD_WriteBlock(buffer, address, 512); - * Status = SD_WaitWriteOperation(); - * while(SD_GetStatus() != SD_TRANSFER_OK); - * - * Status = SD_WriteMultiBlocks(buffer, address, 512, NUMBEROFBLOCKS); - * Status = SD_WaitWriteOperation(); - * while(SD_GetStatus() != SD_TRANSFER_OK); - * - * // Read operation as described in Section B - * Status = SD_ReadBlock(buffer, address, 512); - * Status = SD_WaitReadOperation(); - * while(SD_GetStatus() != SD_TRANSFER_OK); - * - * Status = SD_ReadMultiBlocks(buffer, address, 512, NUMBEROFBLOCKS); - * Status = SD_WaitReadOperation(); - * while(SD_GetStatus() != SD_TRANSFER_OK); - * - * - * STM32 SDIO Pin assignment - * ========================= - * +-----------------------------------------------------------+ - * | Pin assignment | - * +-----------------------------+---------------+-------------+ - * | STM32 SDIO Pins | SD | Pin | - * +-----------------------------+---------------+-------------+ - * | SDIO D2 | D2 | 1 | - * | SDIO D3 | D3 | 2 | - * | SDIO CMD | CMD | 3 | - * | | VCC | 4 (3.3 V)| - * | SDIO CLK | CLK | 5 | - * | | GND | 6 (0 V) | - * | SDIO D0 | D0 | 7 | - * | SDIO D1 | D1 | 8 | - * +-----------------------------+---------------+-------------+ - * - * @endverbatim - * - ****************************************************************************** - * @attention - * - * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS - * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE - * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY - * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING - * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE - * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. - * - * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32_eval_sdio_sd.h" - -/** @addtogroup Utilities - * @{ - */ - -/** @addtogroup STM32_EVAL - * @{ - */ - -/** @addtogroup Common - * @{ - */ - -/** @addtogroup STM32_EVAL_SDIO_SD - * @brief This file provides all the SD Card driver firmware functions. - * @{ - */ - -/** @defgroup STM32_EVAL_SDIO_SD_Private_Types - * @{ - */ -/** - * @} - */ - - -/** @defgroup STM32_EVAL_SDIO_SD_Private_Defines - * @{ - */ -/** - * @brief SDIO Static flags, TimeOut, FIFO Address - */ -#define NULL 0 -#define SDIO_STATIC_FLAGS ((uint32_t)0x000005FF) -#define SDIO_CMD0TIMEOUT ((uint32_t)0x00010000) - -/** - * @brief Mask for errors Card Status R1 (OCR Register) - */ -#define SD_OCR_ADDR_OUT_OF_RANGE ((uint32_t)0x80000000) -#define SD_OCR_ADDR_MISALIGNED ((uint32_t)0x40000000) -#define SD_OCR_BLOCK_LEN_ERR ((uint32_t)0x20000000) -#define SD_OCR_ERASE_SEQ_ERR ((uint32_t)0x10000000) -#define SD_OCR_BAD_ERASE_PARAM ((uint32_t)0x08000000) -#define SD_OCR_WRITE_PROT_VIOLATION ((uint32_t)0x04000000) -#define SD_OCR_LOCK_UNLOCK_FAILED ((uint32_t)0x01000000) -#define SD_OCR_COM_CRC_FAILED ((uint32_t)0x00800000) -#define SD_OCR_ILLEGAL_CMD ((uint32_t)0x00400000) -#define SD_OCR_CARD_ECC_FAILED ((uint32_t)0x00200000) -#define SD_OCR_CC_ERROR ((uint32_t)0x00100000) -#define SD_OCR_GENERAL_UNKNOWN_ERROR ((uint32_t)0x00080000) -#define SD_OCR_STREAM_READ_UNDERRUN ((uint32_t)0x00040000) -#define SD_OCR_STREAM_WRITE_OVERRUN ((uint32_t)0x00020000) -#define SD_OCR_CID_CSD_OVERWRIETE ((uint32_t)0x00010000) -#define SD_OCR_WP_ERASE_SKIP ((uint32_t)0x00008000) -#define SD_OCR_CARD_ECC_DISABLED ((uint32_t)0x00004000) -#define SD_OCR_ERASE_RESET ((uint32_t)0x00002000) -#define SD_OCR_AKE_SEQ_ERROR ((uint32_t)0x00000008) -#define SD_OCR_ERRORBITS ((uint32_t)0xFDFFE008) - -/** - * @brief Masks for R6 Response - */ -#define SD_R6_GENERAL_UNKNOWN_ERROR ((uint32_t)0x00002000) -#define SD_R6_ILLEGAL_CMD ((uint32_t)0x00004000) -#define SD_R6_COM_CRC_FAILED ((uint32_t)0x00008000) - -#define SD_VOLTAGE_WINDOW_SD ((uint32_t)0x80100000) -#define SD_HIGH_CAPACITY ((uint32_t)0x40000000) -#define SD_STD_CAPACITY ((uint32_t)0x00000000) -#define SD_CHECK_PATTERN ((uint32_t)0x000001AA) - -#define SD_MAX_VOLT_TRIAL ((uint32_t)0x0000FFFF) -#define SD_ALLZERO ((uint32_t)0x00000000) - -#define SD_WIDE_BUS_SUPPORT ((uint32_t)0x00040000) -#define SD_SINGLE_BUS_SUPPORT ((uint32_t)0x00010000) -#define SD_CARD_LOCKED ((uint32_t)0x02000000) - -#define SD_DATATIMEOUT ((uint32_t)0xFFFFFFFF) -#define SD_0TO7BITS ((uint32_t)0x000000FF) -#define SD_8TO15BITS ((uint32_t)0x0000FF00) -#define SD_16TO23BITS ((uint32_t)0x00FF0000) -#define SD_24TO31BITS ((uint32_t)0xFF000000) -#define SD_MAX_DATA_LENGTH ((uint32_t)0x01FFFFFF) - -#define SD_HALFFIFO ((uint32_t)0x00000008) -#define SD_HALFFIFOBYTES ((uint32_t)0x00000020) - -/** - * @brief Command Class Supported - */ -#define SD_CCCC_LOCK_UNLOCK ((uint32_t)0x00000080) -#define SD_CCCC_WRITE_PROT ((uint32_t)0x00000040) -#define SD_CCCC_ERASE ((uint32_t)0x00000020) - -/** - * @brief Following commands are SD Card Specific commands. - * SDIO_APP_CMD should be sent before sending these commands. - */ -#define SDIO_SEND_IF_COND ((uint32_t)0x00000008) - -/** - * @} - */ - - -/** @defgroup STM32_EVAL_SDIO_SD_Private_Macros - * @{ - */ -/** - * @} - */ - - -/** @defgroup STM32_EVAL_SDIO_SD_Private_Variables - * @{ - */ -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[16]; -__IO uint32_t StopCondition = 0; -__IO SD_Error TransferError = SD_OK; -__IO uint32_t TransferEnd = 0; -SD_CardInfo SDCardInfo; - -SDIO_InitTypeDef SDIO_InitStructure; -SDIO_CmdInitTypeDef SDIO_CmdInitStructure; -SDIO_DataInitTypeDef SDIO_DataInitStructure; -/** - * @} - */ - - -/** @defgroup STM32_EVAL_SDIO_SD_Private_Function_Prototypes - * @{ - */ -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); -uint8_t convert_from_bytes_to_power_of_two(uint16_t NumberOfBytes); - -/** - * @} - */ - - -/** @defgroup STM32_EVAL_SDIO_SD_Private_Functions - * @{ - */ - -/** - * @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) -{ - 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 */ - /*!< SDIOCLK = HCLK, SDIO_CK = HCLK/(2 + SDIO_TRANSFER_CLK_DIV) */ - /*!< on STM32F2xx 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); - - if (errorstatus == SD_OK) - { - /*----------------- 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) -{ - 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 */ - /*!< SDIOCLK = HCLK, SDIO_CK = HCLK/(2 + SDIO_INIT_CLK_DIV) */ - /*!< on STM32F2xx 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 = (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(uint32_t addr) -{ - SD_Error errorstatus = SD_OK; - - /*!< Send CMD7 SDIO_SEL_DESEL_CARD */ - SDIO_CmdInitStructure.SDIO_Argument = 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, uint32_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 (CardType == SDIO_HIGH_CAPACITY_SD_CARD) - { - BlockSize = 512; - ReadAddr /= 512; - } - - 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); - } - while (SDIO_GetFlagStatus(SDIO_FLAG_RXDAVL) != RESET) - { - *tempbuff = SDIO_ReadData(); - tempbuff++; - } - - /*!< Clear all the static flags */ - SDIO_ClearFlag(SDIO_STATIC_FLAGS); - -#elif defined (SD_DMA_MODE) - SDIO_ITConfig(SDIO_IT_DATAEND, ENABLE); - SDIO_DMACmd(ENABLE); - SD_LowLevel_DMA_RxConfig((uint32_t *)readbuff, BlockSize); -#endif - - 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, uint32_t ReadAddr, uint16_t BlockSize, uint32_t NumberOfBlocks) -{ - SD_Error errorstatus = SD_OK; - TransferError = SD_OK; - TransferEnd = 0; - StopCondition = 1; - - SDIO->DCTRL = 0x0; - - 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); - - 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); - } - - SDIO_ITConfig(SDIO_IT_DATAEND, ENABLE); - SDIO_DMACmd(ENABLE); - SD_LowLevel_DMA_RxConfig((uint32_t *)readbuff, (NumberOfBlocks * BlockSize)); - - 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; - - while ((SD_DMAEndOfTransferStatus() == RESET) && (TransferEnd == 0) && (TransferError == SD_OK)) - {} - - if (TransferError != SD_OK) - { - return(TransferError); - } - - 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, uint32_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 (CardType == SDIO_HIGH_CAPACITY_SD_CARD) - { - BlockSize = 512; - WriteAddr /= 512; - } - - /*!< Send CMD24 WRITE_SINGLE_BLOCK */ - SDIO_CmdInitStructure.SDIO_Argument = 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); - } -#elif defined (SD_DMA_MODE) - SDIO_ITConfig(SDIO_IT_DATAEND, ENABLE); - SD_LowLevel_DMA_TxConfig((uint32_t *)writebuff, BlockSize); - SDIO_DMACmd(ENABLE); -#endif - - 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, uint32_t WriteAddr, uint16_t BlockSize, uint32_t NumberOfBlocks) -{ - SD_Error errorstatus = SD_OK; - __IO uint32_t count = 0; - - TransferError = SD_OK; - TransferEnd = 0; - StopCondition = 1; - - SDIO->DCTRL = 0x0; - - if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) - { - BlockSize = 512; - WriteAddr /= 512; - } - - /*!< 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); - - SDIO_ITConfig(SDIO_IT_DATAEND, ENABLE); - SDIO_DMACmd(ENABLE); - SD_LowLevel_DMA_TxConfig((uint32_t *)writebuff, (NumberOfBlocks * BlockSize)); - - 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; - - while ((SD_DMAEndOfTransferStatus() == RESET) && (TransferEnd == 0) && (TransferError == SD_OK)) - {} - - if (TransferError != SD_OK) - { - return(TransferError); - } - - /*!< Clear all the static flags */ - SDIO_ClearFlag(SDIO_STATIC_FLAGS); - - 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->ARG = 0x0; - SDIO->CMD = 0x44C; - 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(uint32_t startaddr, uint32_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 = 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 = 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); - - while ((errorstatus == SD_OK) && ((SD_CARD_PROGRAMMING == cardstate) || (SD_CARD_RECEIVING == cardstate))) - { - errorstatus = IsCardProgramming(&cardstate); - } - - 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; - - SDIO->ARG = (uint32_t) RCA << 16; - SDIO->CMD = 0x44D; - - errorstatus = CmdResp1Error(SD_CMD_SEND_STATUS); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - - *pcardstatus = 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); - } - - while (SDIO_GetFlagStatus(SDIO_FLAG_RXDAVL) != RESET) - { - *psdstatus = SDIO_ReadData(); - psdstatus++; - } - - /*!< 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 (StopCondition == 1) - { - SDIO->ARG = 0x0; - SDIO->CMD = 0x44C; - TransferError = CmdResp1Error(SD_CMD_STOP_TRANSMISSION); - } - else - { - TransferError = SD_OK; - } - SDIO_ClearITPendingBit(SDIO_IT_DATAEND); - SDIO_ITConfig(SDIO_IT_DATAEND, DISABLE); - TransferEnd = 1; - return(TransferError); -} - -/** - * @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) -{ - while (!(SDIO->STA & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT))) - { - } - - SDIO->ICR = SDIO_STATIC_FLAGS; - - return (SD_Error)(SDIO->RESP1 & SD_OCR_ERRORBITS); -} - -/** - * @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 Converts the number of bytes in power of two and returns the power. - * @param NumberOfBytes: number of bytes. - * @retval None - */ -uint8_t convert_from_bytes_to_power_of_two(uint16_t NumberOfBytes) -{ - uint8_t count = 0; - - while (NumberOfBytes != 1) - { - NumberOfBytes >>= 1; - count++; - } - return(count); -} - -/** - * @} - */ - -/** - * @} - */ - -/** - * @} - */ - -/** - * @} - */ - -/** - * @} - */ - -/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |