From bfc473ebee729b804721134223b104f50f38fa36 Mon Sep 17 00:00:00 2001 From: "bernard.xiong" Date: Thu, 18 Mar 2010 07:57:06 +0000 Subject: [PATCH] update sdcard driver according to stm32 radio project. git-svn-id: https://rt-thread.googlecode.com/svn/trunk@509 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- bsp/stm3210/sdcard.c | 6333 +++++++++++++++++++++--------------------- bsp/stm3210/sdcard.h | 570 ++-- 2 files changed, 3470 insertions(+), 3433 deletions(-) diff --git a/bsp/stm3210/sdcard.c b/bsp/stm3210/sdcard.c index 386db3179..c58f04a5f 100644 --- a/bsp/stm3210/sdcard.c +++ b/bsp/stm3210/sdcard.c @@ -1,3153 +1,3190 @@ -/** - ****************************************************************************** - * @file SDIO/sdcard.c - * @author MCD Application Team - * @version V3.1.0 - * @date 06/19/2009 - * @brief This file provides all the SD Card driver firmware functions. - ****************************************************************************** - * @copy - * - * 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. - * - *

© COPYRIGHT 2009 STMicroelectronics

- */ - -/* Includes ------------------------------------------------------------------*/ -#include "sdcard.h" -#include -#include - +/** + ****************************************************************************** + * @file SDIO/sdcard.c + * @author MCD Application Team + * @version V3.1.2 + * @date 09/28/2009 + * @brief This file provides all the SD Card driver firmware functions. + ****************************************************************************** + * @copy + * + * 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. + * + *

© COPYRIGHT 2009 STMicroelectronics

+ */ + +/* Includes ------------------------------------------------------------------*/ +#include "sdcard.h" #include - -/** @addtogroup STM32F10x_StdPeriph_Examples - * @{ - */ - -/** @addtogroup SDIO_Example - * @{ - */ - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -#define NULL 0 -#define SDIO_STATIC_FLAGS ((uint32_t)0x000005FF) -#define SDIO_CMD0TIMEOUT ((uint32_t)0x00002710) -#define SDIO_FIFO_Address ((uint32_t)0x40018080) - -/* 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) - -/* 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_VOLTAGE_WINDOW_MMC ((uint32_t)0x80FF8000) - -#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_CARD_PROGRAMMING ((uint32_t)0x00000007) -#define SD_CARD_RECEIVING ((uint32_t)0x00000006) -#define SD_DATATIMEOUT ((uint32_t)0x000FFFFF) -#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) - -/* 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) - -/* 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) - -#define SDIO_INIT_CLK_DIV ((uint8_t)0xB2) -#define SDIO_TRANSFER_CLK_DIV ((uint8_t)0x1) - -/* Private macro -------------------------------------------------------------*/ -/* 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 uint32_t DeviceMode = SD_POLLING_MODE; -static uint32_t TotalNumberOfBytes = 0, StopCondition = 0; -uint32_t *SrcBuffer, *DestBuffer; -volatile SD_Error TransferError = SD_OK; -__IO uint32_t TransferEnd = 0; -__IO uint32_t NumberOfBytes = 0; -SDIO_InitTypeDef SDIO_InitStructure; -SDIO_CmdInitTypeDef SDIO_CmdInitStructure; -SDIO_DataInitTypeDef SDIO_DataInitStructure; - -/* 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); -static uint8_t convert_from_bytes_to_power_of_two(uint16_t NumberOfBytes); -static void GPIO_Configuration(void); -static void DMA_TxConfiguration(uint32_t *BufferSRC, uint32_t BufferSize); -static void DMA_RxConfiguration(uint32_t *BufferDST, uint32_t BufferSize); - -/* Private functions ---------------------------------------------------------*/ - -/** - * @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; - - /* Configure SDIO interface GPIO */ - GPIO_Configuration(); - - /* Enable the SDIO AHB Clock */ - RCC_AHBPeriphClockCmd(RCC_AHBPeriph_SDIO, ENABLE); - - /* Enable the DMA2 Clock */ - RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE); - - 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 */ - /* HCLK = 72 MHz, SDIOCLK = 72 MHz, SDIO_CK = HCLK/(2 + 1) = 24 MHz */ - 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 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; - bool validvoltage = FALSE; - uint32_t SDType = SD_STD_CAPACITY; - - /* Power ON Sequence -------------------------------------------------------*/ - /* Configure the SDIO peripheral */ - SDIO_InitStructure.SDIO_ClockDiv = SDIO_INIT_CLK_DIV; /* HCLK = 72MHz, SDIOCLK = 72MHz, SDIO_CK = HCLK/(178 + 2) = 400 KHz */ - 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 = SDIO_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 = SDIO_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(SDIO_APP_CMD); - } - /* CMD55 */ - SDIO_CmdInitStructure.SDIO_Argument = 0x00; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_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 = SDIO_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(SDIO_APP_CMD); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - SDIO_CmdInitStructure.SDIO_Argument = SD_VOLTAGE_WINDOW_SD | SDType; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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 = (bool) (((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 */ - else - { - CardType = SDIO_MULTIMEDIA_CARD; - - /* Send CMD1 SEND_OP_COND with Argument 0x80FF8000 */ - while ((!validvoltage) && (count < SD_MAX_VOLT_TRIAL)) - { - - /* SEND CMD55 APP_CMD with RCA as 0 */ - SDIO_CmdInitStructure.SDIO_Argument = SD_VOLTAGE_WINDOW_MMC; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_SEND_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 = (bool) (((response >> 31) == 1) ? 1 : 0); - count++; - } - if (count >= SD_MAX_VOLT_TRIAL) - { - errorstatus = SD_INVALID_VOLTRANGE; - return(errorstatus); - } - } - - return(SD_OK); -} - -/** - * @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 = SDIO_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 = SDIO_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(SDIO_SET_REL_ADDR, &rca); - - if (SD_OK != errorstatus) - { - return(errorstatus); - } - } - if (SDIO_MULTIMEDIA_CARD == CardType) - { - /* Send CMD3 SET_REL_ADDR with argument 0 */ - /* SD Card publishes its RCA. */ - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)(rca << 16); - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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 = CmdResp2Error(); - - 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 = SDIO_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_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 Sets device mode whether to operate in Polling, Interrupt or - * DMA mode. - * @param Mode: Specifies the Data Transfer mode. - * This parameter can be one of the following values: - * @arg SD_DMA_MODE: Data transfer using DMA. - * @arg SD_INTERRUPT_MODE: Data transfer using interrupts. - * @arg SD_POLLING_MODE: Data transfer using flags. - * @retval SD_Error: SD Card Error code. - */ -SD_Error SD_SetDeviceMode(uint32_t Mode) -{ - SD_Error errorstatus = SD_OK; - - if ((Mode == SD_DMA_MODE) || (Mode == SD_INTERRUPT_MODE) || (Mode == SD_POLLING_MODE)) - { - DeviceMode = Mode; - } - else - { - errorstatus = SD_INVALID_PARAMETER; - } - 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 = SDIO_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(SDIO_SEL_DESEL_CARD); - - return(errorstatus); -} - -/** - * @brief Allows to read one block from a specified address in a card. - * @param addr: Address from where data are to be read. - * @param readbuff: pointer to the buffer that will contain the - * received data - * @param BlockSize: the SD card Data block size. - * @retval SD_Error: SD Card Error code. - */ -SD_Error SD_ReadBlock(uint32_t addr, uint32_t *readbuff, uint16_t BlockSize) -{ - SD_Error errorstatus = SD_OK; - uint32_t count = 0, *tempbuff = readbuff; - uint8_t power = 0; - - if (NULL == readbuff) - { - errorstatus = SD_INVALID_PARAMETER; - return(errorstatus); - } - - TransferError = SD_OK; - TransferEnd = 0; - TotalNumberOfBytes = 0; - - /* Clear all DPSM configuration */ - SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; - SDIO_DataInitStructure.SDIO_DataLength = 0; - SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_1b; - SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard; - SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; - SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Disable; - SDIO_DataConfig(&SDIO_DataInitStructure); - SDIO_DMACmd(DISABLE); - - if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED) - { - errorstatus = SD_LOCK_UNLOCK_FAILED; - return(errorstatus); - } - - if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) - { - BlockSize = 512; - addr /= 512; - } - if ((BlockSize > 0) && (BlockSize <= 2048) && ((BlockSize & (BlockSize - 1)) == 0)) - { - power = convert_from_bytes_to_power_of_two(BlockSize); - - /* Set Block Size for Card */ - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SET_BLOCKLEN); - - if (SD_OK != errorstatus) - { - return(errorstatus); - } - } - else - { - errorstatus = SD_INVALID_PARAMETER; - return(errorstatus); - } - - SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; - SDIO_DataInitStructure.SDIO_DataLength = BlockSize; - SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) power << 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); - - TotalNumberOfBytes = BlockSize; - StopCondition = 0; - DestBuffer = readbuff; - - /* Send CMD17 READ_SINGLE_BLOCK */ - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)addr; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_READ_SINGLE_BLOCK); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - /* In case of single block transfer, no need of stop transfer at all.*/ - if (DeviceMode == SD_POLLING_MODE) - { - /* 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); - } - else if (DeviceMode == SD_INTERRUPT_MODE) - { - SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_RXFIFOHF | SDIO_IT_STBITERR, ENABLE); - while ((TransferEnd == 0) && (TransferError == SD_OK)) - {} - if (TransferError != SD_OK) - { - return(TransferError); - } - } - else if (DeviceMode == SD_DMA_MODE) - { - int cnt = 0; - SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE); - SDIO_DMACmd(ENABLE); - DMA_RxConfiguration(readbuff, BlockSize); - while (DMA_GetFlagStatus(DMA2_FLAG_TC4) == RESET) + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup SDIO_Example + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +#define NULL 0 +#define SDIO_STATIC_FLAGS ((uint32_t)0x000005FF) +#define SDIO_CMD0TIMEOUT ((uint32_t)0x00002710) +#define SDIO_FIFO_Address ((uint32_t)0x40018080) + +/* 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) + +/* 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_VOLTAGE_WINDOW_MMC ((uint32_t)0x80FF8000) + +#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_CARD_PROGRAMMING ((uint32_t)0x00000007) +#define SD_CARD_RECEIVING ((uint32_t)0x00000006) +#define SD_DATATIMEOUT ((uint32_t)0x000FFFFF) +#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) + +/* 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) + +/* 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) + +#define SDIO_INIT_CLK_DIV ((uint8_t)0xB2) +#define SDIO_TRANSFER_CLK_DIV ((uint8_t)0x1) + +/* Private macro -------------------------------------------------------------*/ +/* 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 uint32_t DeviceMode = SD_POLLING_MODE; +static uint32_t TotalNumberOfBytes = 0, StopCondition = 0; +uint32_t *SrcBuffer, *DestBuffer; +volatile SD_Error TransferError = SD_OK; +__IO uint32_t TransferEnd = 0; +__IO uint32_t NumberOfBytes = 0; +SDIO_InitTypeDef SDIO_InitStructure; +SDIO_CmdInitTypeDef SDIO_CmdInitStructure; +SDIO_DataInitTypeDef SDIO_DataInitStructure; + +/* 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); +static uint8_t convert_from_bytes_to_power_of_two(uint16_t NumberOfBytes); +static void GPIO_Configuration(void); +static void DMA_TxConfiguration(uint32_t *BufferSRC, uint32_t BufferSize); +static void DMA_RxConfiguration(uint32_t *BufferDST, uint32_t BufferSize); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @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; + + /* Configure SDIO interface GPIO */ + GPIO_Configuration(); + + /* Enable the SDIO AHB Clock */ + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_SDIO, ENABLE); + + /* Enable the DMA2 Clock */ + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE); + + 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 */ + /* HCLK = 72 MHz, SDIOCLK = 72 MHz, SDIO_CK = HCLK/(2 + 1) = 24 MHz */ + 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_Enable; + SDIO_Init(&SDIO_InitStructure); + + return(errorstatus); +} + +/** + * @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; + bool validvoltage = FALSE; + uint32_t SDType = SD_STD_CAPACITY; + + /* Power ON Sequence -------------------------------------------------------*/ + /* Configure the SDIO peripheral */ + SDIO_InitStructure.SDIO_ClockDiv = SDIO_INIT_CLK_DIV; /* HCLK = 72MHz, SDIOCLK = 72MHz, SDIO_CK = HCLK/(178 + 2) = 400 KHz */ + 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 = SDIO_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 = SDIO_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(SDIO_APP_CMD); + } + /* CMD55 */ + SDIO_CmdInitStructure.SDIO_Argument = 0x00; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_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 = SDIO_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(SDIO_APP_CMD); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + SDIO_CmdInitStructure.SDIO_Argument = SD_VOLTAGE_WINDOW_SD | SDType; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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 = (bool) (((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 */ + else + { + CardType = SDIO_MULTIMEDIA_CARD; + + /* Send CMD1 SEND_OP_COND with Argument 0x80FF8000 */ + while ((!validvoltage) && (count < SD_MAX_VOLT_TRIAL)) + { + /* SEND CMD55 APP_CMD with RCA as 0 */ + SDIO_CmdInitStructure.SDIO_Argument = SD_VOLTAGE_WINDOW_MMC; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_SEND_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 = (bool) (((response >> 31) == 1) ? 1 : 0); + count++; + } + if (count >= SD_MAX_VOLT_TRIAL) + { + errorstatus = SD_INVALID_VOLTRANGE; + return(errorstatus); + } + } + + return(SD_OK); +} + +/** + * @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 = SDIO_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 = SDIO_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(SDIO_SET_REL_ADDR, &rca); + + if (SD_OK != errorstatus) + { + return(errorstatus); + } + } + if (SDIO_MULTIMEDIA_CARD == CardType) + { + /* Send CMD3 SET_REL_ADDR with argument 0 */ + /* SD Card publishes its RCA. */ + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)(rca << 16); + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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 = CmdResp2Error(); + + 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 = SDIO_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_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 Sets device mode whether to operate in Polling, Interrupt or + * DMA mode. + * @param Mode: Specifies the Data Transfer mode. + * This parameter can be one of the following values: + * @arg SD_DMA_MODE: Data transfer using DMA. + * @arg SD_INTERRUPT_MODE: Data transfer using interrupts. + * @arg SD_POLLING_MODE: Data transfer using flags. + * @retval SD_Error: SD Card Error code. + */ +SD_Error SD_SetDeviceMode(uint32_t Mode) +{ + SD_Error errorstatus = SD_OK; + + if ((Mode == SD_DMA_MODE) || (Mode == SD_INTERRUPT_MODE) || (Mode == SD_POLLING_MODE)) + { + DeviceMode = Mode; + } + else + { + errorstatus = SD_INVALID_PARAMETER; + } + 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 = SDIO_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(SDIO_SEL_DESEL_CARD); + + return(errorstatus); +} + +/** + * @brief Allows to read one block from a specified address in a card. + * @param addr: Address from where data are to be read. + * @param readbuff: pointer to the buffer that will contain the + * received data + * @param BlockSize: the SD card Data block size. + * @retval SD_Error: SD Card Error code. + */ +SD_Error SD_ReadBlock(uint32_t addr, uint32_t *readbuff, uint16_t BlockSize) +{ + SD_Error errorstatus = SD_OK; + uint32_t count = 0, *tempbuff = readbuff; + uint8_t power = 0; + + if (NULL == readbuff) + { + errorstatus = SD_INVALID_PARAMETER; + return(errorstatus); + } + + TransferError = SD_OK; + TransferEnd = 0; + TotalNumberOfBytes = 0; + + /* Clear all DPSM configuration */ + SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; + SDIO_DataInitStructure.SDIO_DataLength = 0; + SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_1b; + SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard; + SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; + SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Disable; + SDIO_DataConfig(&SDIO_DataInitStructure); + SDIO_DMACmd(DISABLE); + + if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED) + { + errorstatus = SD_LOCK_UNLOCK_FAILED; + return(errorstatus); + } + + if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) + { + BlockSize = 512; + addr /= 512; + } + if ((BlockSize > 0) && (BlockSize <= 2048) && ((BlockSize & (BlockSize - 1)) == 0)) + { + power = convert_from_bytes_to_power_of_two(BlockSize); + + /* Set Block Size for Card */ + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SET_BLOCKLEN); + + if (SD_OK != errorstatus) + { + return(errorstatus); + } + } + else + { + errorstatus = SD_INVALID_PARAMETER; + return(errorstatus); + } + + SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; + SDIO_DataInitStructure.SDIO_DataLength = BlockSize; + SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) power << 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); + + TotalNumberOfBytes = BlockSize; + StopCondition = 0; + DestBuffer = readbuff; + + /* Send CMD17 READ_SINGLE_BLOCK */ + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)addr; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_READ_SINGLE_BLOCK); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + /* In case of single block transfer, no need of stop transfer at all.*/ + if (DeviceMode == SD_POLLING_MODE) + { + /* 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); + } + else if (DeviceMode == SD_INTERRUPT_MODE) + { + SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_RXFIFOHF | SDIO_IT_STBITERR, ENABLE); + while ((TransferEnd == 0) && (TransferError == SD_OK)) + {} + if (TransferError != SD_OK) + { + return(TransferError); + } + } + else if (DeviceMode == SD_DMA_MODE) + { + rt_tick_t tick; + + SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE); + SDIO_DMACmd(ENABLE); + tick = rt_tick_get(); + DMA_RxConfiguration(readbuff, BlockSize); + while (DMA_GetFlagStatus(DMA2_FLAG_TC4) == RESET) + { + if ((TransferError != SD_OK) || (rt_tick_get() - tick > 10)) + { + errorstatus = SD_ERROR; + // rt_kprintf("sd error\n"); + break; + } + } + } + return(errorstatus); +} + +/** + * @brief Allows to read blocks from a specified address in a card. + * @param addr: Address from where data are to be read. + * @param readbuff: pointer to the buffer that will contain the + * received data. + * @param BlockSize: the SD card Data block size. + * @param NumberOfBlocks: number of blocks to be read. + * @retval SD_Error: SD Card Error code. + */ +SD_Error SD_ReadMultiBlocks(uint32_t addr, uint32_t *readbuff, uint16_t BlockSize, uint32_t NumberOfBlocks) +{ + SD_Error errorstatus = SD_OK; + uint32_t count = 0, *tempbuff = readbuff; + uint8_t power = 0; + + if (NULL == readbuff) + { + errorstatus = SD_INVALID_PARAMETER; + return(errorstatus); + } + + TransferError = SD_OK; + TransferEnd = 0; + TotalNumberOfBytes = 0; + + /* Clear all DPSM configuration */ + SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; + SDIO_DataInitStructure.SDIO_DataLength = 0; + SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_1b; + SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard; + SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; + SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Disable; + SDIO_DataConfig(&SDIO_DataInitStructure); + SDIO_DMACmd(DISABLE); + + if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED) + { + errorstatus = SD_LOCK_UNLOCK_FAILED; + return(errorstatus); + } + + if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) + { + BlockSize = 512; + addr /= 512; + } + + if ((BlockSize > 0) && (BlockSize <= 2048) && (0 == (BlockSize & (BlockSize - 1)))) + { + power = convert_from_bytes_to_power_of_two(BlockSize); + + /* Set Block Size for Card */ + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SET_BLOCKLEN); + + if (SD_OK != errorstatus) + { + return(errorstatus); + } + } + else + { + errorstatus = SD_INVALID_PARAMETER; + return(errorstatus); + } + + if (NumberOfBlocks > 1) + { + /* Common to all modes */ + if (NumberOfBlocks * BlockSize > SD_MAX_DATA_LENGTH) + { + errorstatus = SD_INVALID_PARAMETER; + return(errorstatus); + } + + TotalNumberOfBytes = NumberOfBlocks * BlockSize; + StopCondition = 1; + DestBuffer = readbuff; + + SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; + SDIO_DataInitStructure.SDIO_DataLength = NumberOfBlocks * BlockSize; + SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) power << 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)addr; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_READ_MULT_BLOCK); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + + if (DeviceMode == SD_POLLING_MODE) + { + /* Polling mode */ + while (!(SDIO->STA &(SDIO_FLAG_RXOVERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DATAEND | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_STBITERR))) + { + if (SDIO_GetFlagStatus(SDIO_FLAG_RXFIFOHF) != RESET) + { + for (count = 0; count < SD_HALFFIFO; count++) + { + *(tempbuff + count) = SDIO_ReadData(); + } + tempbuff += SD_HALFFIFO; + } + } + + 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++; + } + + if (SDIO_GetFlagStatus(SDIO_FLAG_DATAEND) != RESET) + { + /* In Case Of SD-CARD Send Command STOP_TRANSMISSION */ + if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType)) + { + /* Send CMD12 STOP_TRANSMISSION */ + SDIO_CmdInitStructure.SDIO_Argument = 0x0; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_STOP_TRANSMISSION); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + } + } + /* Clear all the static flags */ + SDIO_ClearFlag(SDIO_STATIC_FLAGS); + } + else if (DeviceMode == SD_INTERRUPT_MODE) + { + SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_RXFIFOHF | SDIO_IT_STBITERR, ENABLE); + while ((TransferEnd == 0) && (TransferError == SD_OK)) + {} + if (TransferError != SD_OK) + { + return(TransferError); + } + } + else if (DeviceMode == SD_DMA_MODE) + { + rt_tick_t tick; + + SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE); + SDIO_DMACmd(ENABLE); + tick = rt_tick_get(); + DMA_RxConfiguration(readbuff, (NumberOfBlocks * BlockSize)); + while (DMA_GetFlagStatus(DMA2_FLAG_TC4) == RESET) + { + if ((TransferError != SD_OK) || (rt_tick_get() - tick > 10)) + { + errorstatus = SD_ERROR; + // rt_kprintf("sd error\n"); + return errorstatus; + } + } + while ((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. + * @param addr: 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. + * @retval SD_Error: SD Card Error code. + */ +SD_Error SD_WriteBlock(uint32_t addr, uint32_t *writebuff, uint16_t BlockSize) +{ + SD_Error errorstatus = SD_OK; + uint8_t power = 0, cardstate = 0; + uint32_t timeout = 0, bytestransferred = 0; + uint32_t cardstatus = 0, count = 0, restwords = 0; + uint32_t *tempbuff = writebuff; + + if (writebuff == NULL) + { + errorstatus = SD_INVALID_PARAMETER; + return(errorstatus); + } + + TransferError = SD_OK; + TransferEnd = 0; + TotalNumberOfBytes = 0; + + SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; + SDIO_DataInitStructure.SDIO_DataLength = 0; + SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_1b; + SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard; + SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; + SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Disable; + SDIO_DataConfig(&SDIO_DataInitStructure); + SDIO_DMACmd(DISABLE); + + if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED) + { + errorstatus = SD_LOCK_UNLOCK_FAILED; + return(errorstatus); + } + + if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) + { + BlockSize = 512; + addr /= 512; + } + + /* Set the block size, both on controller and card */ + if ((BlockSize > 0) && (BlockSize <= 2048) && ((BlockSize & (BlockSize - 1)) == 0)) + { + power = convert_from_bytes_to_power_of_two(BlockSize); + + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SET_BLOCKLEN); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + } + else + { + errorstatus = SD_INVALID_PARAMETER; + return(errorstatus); + } + + /* Wait till card is ready for data Added */ + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) (RCA << 16); + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SEND_STATUS); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + + cardstatus = SDIO_GetResponse(SDIO_RESP1); + + timeout = SD_DATATIMEOUT; + + while (((cardstatus & 0x00000100) == 0) && (timeout > 0)) + { + timeout--; + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) (RCA << 16); + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SEND_STATUS); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + cardstatus = SDIO_GetResponse(SDIO_RESP1); + } + + if (timeout == 0) + { + return(SD_ERROR); + } + + /* Send CMD24 WRITE_SINGLE_BLOCK */ + SDIO_CmdInitStructure.SDIO_Argument = addr; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_WRITE_SINGLE_BLOCK); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + + TotalNumberOfBytes = BlockSize; + StopCondition = 0; + SrcBuffer = writebuff; + + SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; + SDIO_DataInitStructure.SDIO_DataLength = BlockSize; + SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) power << 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 (DeviceMode == 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 ((TotalNumberOfBytes - bytestransferred) < 32) + { + restwords = ((TotalNumberOfBytes - bytestransferred) % 4 == 0) ? ((TotalNumberOfBytes - bytestransferred) / 4) : (( TotalNumberOfBytes - 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); + } + } + else if (DeviceMode == SD_INTERRUPT_MODE) + { + SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_FLAG_TXFIFOHE | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR, ENABLE); + while ((TransferEnd == 0) && (TransferError == SD_OK)) + {} + if (TransferError != SD_OK) + { + return(TransferError); + } + } + else if (DeviceMode == SD_DMA_MODE) + { + SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR, ENABLE); + DMA_TxConfiguration(writebuff, BlockSize); + SDIO_DMACmd(ENABLE); + while (DMA_GetFlagStatus(DMA2_FLAG_TC4) == RESET) + {} + while ((TransferEnd == 0) && (TransferError == SD_OK)) + {} + if (TransferError != SD_OK) + { + return(TransferError); + } + } + + /* Clear all the static flags */ + SDIO_ClearFlag(SDIO_STATIC_FLAGS); + + /* Wait till the card is in programming state */ + errorstatus = IsCardProgramming(&cardstate); + + while ((errorstatus == SD_OK) && ((cardstate == SD_CARD_PROGRAMMING) || (cardstate == SD_CARD_RECEIVING))) + { + errorstatus = IsCardProgramming(&cardstate); + } + + return(errorstatus); +} + +/** + * @brief Allows to write blocks starting from a specified address in + * a card. + * @param addr: 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. + * @param NumberOfBlocks: number of blocks to be written. + * @retval SD_Error: SD Card Error code. + */ +SD_Error SD_WriteMultiBlocks(uint32_t addr, uint32_t *writebuff, uint16_t BlockSize, uint32_t NumberOfBlocks) +{ + SD_Error errorstatus = SD_OK; + uint8_t power = 0, cardstate = 0; + uint32_t bytestransferred = 0; + uint32_t count = 0, restwords = 0; + uint32_t *tempbuff = writebuff; + + if (writebuff == NULL) + { + errorstatus = SD_INVALID_PARAMETER; + return(errorstatus); + } + + TransferError = SD_OK; + TransferEnd = 0; + TotalNumberOfBytes = 0; + + SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; + SDIO_DataInitStructure.SDIO_DataLength = 0; + SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_1b; + SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard; + SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; + SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Disable; + SDIO_DataConfig(&SDIO_DataInitStructure); + SDIO_DMACmd(DISABLE); + + if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED) + { + errorstatus = SD_LOCK_UNLOCK_FAILED; + return(errorstatus); + } + + if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) + { + BlockSize = 512; + addr /= 512; + } + + /* Set the block size, both on controller and card */ + if ((BlockSize > 0) && (BlockSize <= 2048) && ((BlockSize & (BlockSize - 1)) == 0)) + { + power = convert_from_bytes_to_power_of_two(BlockSize); + + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SET_BLOCKLEN); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + } + else + { + errorstatus = SD_INVALID_PARAMETER; + return(errorstatus); + } + + /* Wait till card is ready for data Added */ + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) (RCA << 16); + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SEND_STATUS); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + + if (NumberOfBlocks > 1) + { + /* Common to all modes */ + if (NumberOfBlocks * BlockSize > SD_MAX_DATA_LENGTH) + { + errorstatus = SD_INVALID_PARAMETER; + return(errorstatus); + } + + if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType)) + { + /* To improve performance */ + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) (RCA << 16); + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_APP_CMD); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + /* To improve performance */ + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)NumberOfBlocks; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SET_BLOCK_COUNT); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + } + + /* Send CMD25 WRITE_MULT_BLOCK with argument data address */ + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)addr; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_WRITE_MULT_BLOCK); + + if (SD_OK != errorstatus) + { + return(errorstatus); + } + + TotalNumberOfBytes = NumberOfBlocks * BlockSize; + StopCondition = 1; + SrcBuffer = writebuff; + + SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; + SDIO_DataInitStructure.SDIO_DataLength = NumberOfBlocks * BlockSize; + SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) power << 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); + + if (DeviceMode == SD_POLLING_MODE) + { + while (!(SDIO->STA & (SDIO_FLAG_TXUNDERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DATAEND | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_STBITERR))) + { + if (SDIO_GetFlagStatus(SDIO_FLAG_TXFIFOHE) != RESET) + { + if (!((TotalNumberOfBytes - bytestransferred) < SD_HALFFIFOBYTES)) + { + for (count = 0; count < SD_HALFFIFO; count++) + { + SDIO_WriteData(*(tempbuff + count)); + } + tempbuff += SD_HALFFIFO; + bytestransferred += SD_HALFFIFOBYTES; + } + else + { + restwords = ((TotalNumberOfBytes - bytestransferred) % 4 == 0) ? ((TotalNumberOfBytes - bytestransferred) / 4) : + ((TotalNumberOfBytes - bytestransferred) / 4 + 1); + + for (count = 0; count < restwords; count++, tempbuff++, bytestransferred += 4) + { + SDIO_WriteData(*tempbuff); + } + } + } + } + + 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); + } + + if (SDIO_GetFlagStatus(SDIO_FLAG_DATAEND) != RESET) + { + if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType)) + { + /* Send CMD12 STOP_TRANSMISSION */ + SDIO_CmdInitStructure.SDIO_Argument = 0x0; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_STOP_TRANSMISSION); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + } + } + } + else if (DeviceMode == SD_INTERRUPT_MODE) + { + SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_TXFIFOHE | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR, ENABLE); + while ((TransferEnd == 0) && (TransferError == SD_OK)) + {} + if (TransferError != SD_OK) + { + return(TransferError); + } + } + else if (DeviceMode == SD_DMA_MODE) + { + SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR, ENABLE); + SDIO_DMACmd(ENABLE); + DMA_TxConfiguration(writebuff, (NumberOfBlocks * BlockSize)); + while (DMA_GetFlagStatus(DMA2_FLAG_TC4) == RESET) + {} + while ((TransferEnd == 0) && (TransferError == SD_OK)) + {} + if (TransferError != SD_OK) + { + return(TransferError); + } + } + } + /* Clear all the static flags */ + SDIO_ClearFlag(SDIO_STATIC_FLAGS); + + /* Wait till the card is in programming state */ + errorstatus = IsCardProgramming(&cardstate); + + while ((errorstatus == SD_OK) && ((cardstate == SD_CARD_PROGRAMMING) || (cardstate == SD_CARD_RECEIVING))) + { + errorstatus = IsCardProgramming(&cardstate); + } + + return(errorstatus); +} + +/** + * @brief Gets the cuurent data transfer state. + * @param None + * @retval SDTransferState: Data Transfer state. + * This value can be: + * - SD_NO_TRANSFER: No data transfer is acting + * - SD_TRANSFER_IN_PROGRESS: Data transfer is acting + */ +SDTransferState SD_GetTransferState(void) +{ + if (SDIO->STA & (SDIO_FLAG_TXACT | SDIO_FLAG_RXACT)) + { + return(SD_TRANSFER_IN_PROGRESS); + } + else + { + return(SD_NO_TRANSFER); + } +} + +/** + * @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 = SDIO_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(SDIO_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 = 72000 / ((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 = SDIO_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(SDIO_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 = SDIO_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(SDIO_SD_ERASE_GRP_END); + if (errorstatus != SD_OK) + { + return(errorstatus); + } + } + + /* Send CMD38 ERASE */ + SDIO_CmdInitStructure.SDIO_Argument = 0; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_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; + + if (pcardstatus == NULL) + { + errorstatus = SD_INVALID_PARAMETER; + return(errorstatus); + } + + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_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 = SDIO_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(SDIO_SET_BLOCKLEN); + + if (errorstatus != SD_OK) + { + return(errorstatus); + } + + /* CMD55 */ + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_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 = SDIO_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(SDIO_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); + psdstatus -= 16; + for (count = 0; count < 16; count++) + { + psdstatus[count] = ((psdstatus[count] & SD_0TO7BITS) << 24) |((psdstatus[count] & SD_8TO15BITS) << 8) | + ((psdstatus[count] & SD_16TO23BITS) >> 8) |((psdstatus[count] & SD_24TO31BITS) >> 24); + } + 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) +{ + uint32_t count = 0, restwords = 0; + + if (DeviceMode == SD_INTERRUPT_MODE) + { + if (SDIO_GetITStatus(SDIO_IT_RXFIFOHF) != RESET) + { + for (count = 0; count < SD_HALFFIFO; count++) + { + *(DestBuffer + count) = SDIO_ReadData(); + } + DestBuffer += SD_HALFFIFO; + NumberOfBytes += SD_HALFFIFOBYTES; + } + else if (SDIO_GetITStatus(SDIO_IT_TXFIFOHE) != RESET) + { + if ((TotalNumberOfBytes - NumberOfBytes) < SD_HALFFIFOBYTES) + { + restwords = ((TotalNumberOfBytes - NumberOfBytes) % 4 == 0) ? + ((TotalNumberOfBytes - NumberOfBytes) / 4) : + ((TotalNumberOfBytes - NumberOfBytes) / 4 + 1); + + for (count = 0; count < restwords; count++, SrcBuffer++, NumberOfBytes += 4) + { + SDIO_WriteData(*SrcBuffer); + } + } + else + { + for (count = 0; count < SD_HALFFIFO; count++) + { + SDIO_WriteData(*(SrcBuffer + count)); + } + + SrcBuffer += SD_HALFFIFO; + NumberOfBytes += SD_HALFFIFOBYTES; + } + } + } + + if (SDIO_GetITStatus(SDIO_IT_DATAEND) != RESET) + { + if (DeviceMode != SD_DMA_MODE) + { + while ((SDIO_GetFlagStatus(SDIO_FLAG_RXDAVL) != RESET) && (NumberOfBytes < TotalNumberOfBytes)) + { + *DestBuffer = SDIO_ReadData(); + DestBuffer++; + NumberOfBytes += 4; + } + } + + if (StopCondition == 1) + { + TransferError = SD_StopTransfer(); + } + else + { + TransferError = SD_OK; + } + SDIO_ClearITPendingBit(SDIO_IT_DATAEND); + 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); + TransferEnd = 1; + NumberOfBytes = 0; + return(TransferError); + } + + if (SDIO_GetITStatus(SDIO_IT_DCRCFAIL) != RESET) + { + SDIO_ClearITPendingBit(SDIO_IT_DCRCFAIL); + 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); + NumberOfBytes = 0; + TransferError = SD_DATA_CRC_FAIL; + return(SD_DATA_CRC_FAIL); + } + + if (SDIO_GetITStatus(SDIO_IT_DTIMEOUT) != RESET) + { + SDIO_ClearITPendingBit(SDIO_IT_DTIMEOUT); + 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); + NumberOfBytes = 0; + TransferError = SD_DATA_TIMEOUT; + return(SD_DATA_TIMEOUT); + } + + if (SDIO_GetITStatus(SDIO_IT_RXOVERR) != RESET) + { + SDIO_ClearITPendingBit(SDIO_IT_RXOVERR); + 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); + NumberOfBytes = 0; + TransferError = SD_RX_OVERRUN; + return(SD_RX_OVERRUN); + } + + if (SDIO_GetITStatus(SDIO_IT_TXUNDERR) != RESET) + { + SDIO_ClearITPendingBit(SDIO_IT_TXUNDERR); + 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); + NumberOfBytes = 0; + TransferError = SD_TX_UNDERRUN; + return(SD_TX_UNDERRUN); + } + + if (SDIO_GetITStatus(SDIO_IT_STBITERR) != RESET) + { + SDIO_ClearITPendingBit(SDIO_IT_STBITERR); + 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); + NumberOfBytes = 0; + TransferError = SD_START_BIT_ERR; + return(SD_START_BIT_ERR); + } + + return(SD_OK); +} + +/** + * @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) { - cnt ++; - if (cnt > 10 * 50000) - { - rt_kprintf("DMA flag 0x%08x\n", DMA_GetFlagStatus(DMA2_FLAG_TC4)); - /* Clear all DPSM configuration */ - SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; - SDIO_DataInitStructure.SDIO_DataLength = 0; - SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_1b; - SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard; - SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; - SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Disable; - SDIO_DataConfig(&SDIO_DataInitStructure); - SDIO_DMACmd(DISABLE); - errorstatus = SD_ERROR; - break; - } + /* Send CMD55 APP_CMD with argument as card's RCA.*/ + SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16; + SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_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 = SDIO_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(SDIO_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 = SDIO_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(SDIO_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 = SDIO_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(SDIO_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 = SDIO_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 != SDIO_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 = SDIO_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(SDIO_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 = SDIO_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(SDIO_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 = SDIO_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(SDIO_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 + */ +static uint8_t convert_from_bytes_to_power_of_two(uint16_t NumberOfBytes) +{ + uint8_t count = 0; + + while (NumberOfBytes != 1) + { + NumberOfBytes >>= 1; + count++; + } + return(count); +} + +/** + * @brief Configures the SDIO Corresponding GPIO Ports + * @param None + * @retval None + */ +static void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + + /* GPIOC and GPIOD Periph clock enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD, ENABLE); + + /* Configure PC.08, PC.09, PC.10, PC.11, PC.12 pin: D0, D1, D2, D3, CLK pin */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_Init(GPIOC, &GPIO_InitStructure); + + /* Configure PD.02 CMD line */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; + GPIO_Init(GPIOD, &GPIO_InitStructure); +} + +/** + * @brief Configures the DMA2 Channel4 for SDIO Tx request. + * @param BufferSRC: pointer to the source buffer + * @param BufferSize: buffer size + * @retval None + */ +static void DMA_TxConfiguration(uint32_t *BufferSRC, uint32_t BufferSize) +{ + DMA_InitTypeDef DMA_InitStructure; + + DMA_ClearFlag(DMA2_FLAG_TC4 | DMA2_FLAG_TE4 | DMA2_FLAG_HT4 | DMA2_FLAG_GL4); + + /* DMA2 Channel4 disable */ + DMA_Cmd(DMA2_Channel4, DISABLE); + + /* DMA2 Channel4 Config */ + DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_Address; + DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)BufferSRC; + DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST; + DMA_InitStructure.DMA_BufferSize = BufferSize / 4; + DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; + DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; + DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word; + DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word; + DMA_InitStructure.DMA_Mode = DMA_Mode_Normal; + DMA_InitStructure.DMA_Priority = DMA_Priority_High; + DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; + DMA_Init(DMA2_Channel4, &DMA_InitStructure); + + /* DMA2 Channel4 enable */ + DMA_Cmd(DMA2_Channel4, 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 DMA_RxConfiguration(uint32_t *BufferDST, uint32_t BufferSize) +{ + DMA_InitTypeDef DMA_InitStructure; + + DMA_ClearFlag(DMA2_FLAG_TC4 | DMA2_FLAG_TE4 | DMA2_FLAG_HT4 | DMA2_FLAG_GL4); + + /* DMA2 Channel4 disable */ + DMA_Cmd(DMA2_Channel4, DISABLE); + + /* DMA2 Channel4 Config */ + DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_Address; + DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)BufferDST; + DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC; + DMA_InitStructure.DMA_BufferSize = BufferSize / 4; + DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; + DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; + DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word; + DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word; + DMA_InitStructure.DMA_Mode = DMA_Mode_Normal; + DMA_InitStructure.DMA_Priority = DMA_Priority_High; + DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; + DMA_Init(DMA2_Channel4, &DMA_InitStructure); + + /* DMA2 Channel4 enable */ + DMA_Cmd(DMA2_Channel4, ENABLE); +} + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/ + +/* + * RT-Thread SD Card Driver + * 20090417 Bernard + */ +#include +#include + +/* set sector size to 512 */ +#define SECTOR_SIZE 512 + +static struct rt_device sdcard_device; +static SD_CardInfo SDCardInfo; +static struct dfs_partition part; +static struct rt_semaphore sd_lock; +static rt_uint8_t _sdcard_buffer[SECTOR_SIZE]; + +/* RT-Thread Device Driver Interface */ +static rt_err_t rt_sdcard_init(rt_device_t dev) +{ + NVIC_InitTypeDef NVIC_InitStructure; + + 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); + + if (rt_sem_init(&sd_lock, "sdlock", 1, RT_IPC_FLAG_FIFO) != RT_EOK) + { + rt_kprintf("init sd lock semaphore failed\n"); } - } - return(errorstatus); -} - -/** - * @brief Allows to read blocks from a specified address in a card. - * @param addr: Address from where data are to be read. - * @param readbuff: pointer to the buffer that will contain the - * received data. - * @param BlockSize: the SD card Data block size. - * @param NumberOfBlocks: number of blocks to be read. - * @retval SD_Error: SD Card Error code. - */ -SD_Error SD_ReadMultiBlocks(uint32_t addr, uint32_t *readbuff, uint16_t BlockSize, uint32_t NumberOfBlocks) -{ - SD_Error errorstatus = SD_OK; - uint32_t count = 0, *tempbuff = readbuff; - uint8_t power = 0; - - if (NULL == readbuff) - { - errorstatus = SD_INVALID_PARAMETER; - return(errorstatus); - } - - TransferError = SD_OK; - TransferEnd = 0; - TotalNumberOfBytes = 0; - - /* Clear all DPSM configuration */ - SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; - SDIO_DataInitStructure.SDIO_DataLength = 0; - SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_1b; - SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard; - SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; - SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Disable; - SDIO_DataConfig(&SDIO_DataInitStructure); - SDIO_DMACmd(DISABLE); - - if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED) - { - errorstatus = SD_LOCK_UNLOCK_FAILED; - return(errorstatus); - } - - if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) - { - BlockSize = 512; - addr /= 512; - } - - if ((BlockSize > 0) && (BlockSize <= 2048) && (0 == (BlockSize & (BlockSize - 1)))) - { - power = convert_from_bytes_to_power_of_two(BlockSize); - - /* Set Block Size for Card */ - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SET_BLOCKLEN); - - if (SD_OK != errorstatus) - { - return(errorstatus); - } - } - else - { - errorstatus = SD_INVALID_PARAMETER; - return(errorstatus); - } - - if (NumberOfBlocks > 1) - { - /* Common to all modes */ - if (NumberOfBlocks * BlockSize > SD_MAX_DATA_LENGTH) - { - errorstatus = SD_INVALID_PARAMETER; - return(errorstatus); - } - - TotalNumberOfBytes = NumberOfBlocks * BlockSize; - StopCondition = 1; - DestBuffer = readbuff; - - SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; - SDIO_DataInitStructure.SDIO_DataLength = NumberOfBlocks * BlockSize; - SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) power << 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)addr; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_READ_MULT_BLOCK); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - - if (DeviceMode == SD_POLLING_MODE) - { - /* Polling mode */ - while (!(SDIO->STA &(SDIO_FLAG_RXOVERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DATAEND | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_STBITERR))) - { - if (SDIO_GetFlagStatus(SDIO_FLAG_RXFIFOHF) != RESET) - { - for (count = 0; count < SD_HALFFIFO; count++) - { - *(tempbuff + count) = SDIO_ReadData(); - } - tempbuff += SD_HALFFIFO; - } - } - - 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++; - } - - if (SDIO_GetFlagStatus(SDIO_FLAG_DATAEND) != RESET) - { - /* In Case Of SD-CARD Send Command STOP_TRANSMISSION */ - if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType)) - { - /* Send CMD12 STOP_TRANSMISSION */ - SDIO_CmdInitStructure.SDIO_Argument = 0x0; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_STOP_TRANSMISSION); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - } - } - /* Clear all the static flags */ - SDIO_ClearFlag(SDIO_STATIC_FLAGS); - } - else if (DeviceMode == SD_INTERRUPT_MODE) - { - SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_RXFIFOHF | SDIO_IT_STBITERR, ENABLE); - while ((TransferEnd == 0) && (TransferError == SD_OK)) - {} - if (TransferError != SD_OK) - { - return(TransferError); - } - } - else if (DeviceMode == SD_DMA_MODE) - { - SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE); - SDIO_DMACmd(ENABLE); - DMA_RxConfiguration(readbuff, (NumberOfBlocks * BlockSize)); - while (DMA_GetFlagStatus(DMA2_FLAG_TC4) == RESET) - {} - while ((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. - * @param addr: 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. - * @retval SD_Error: SD Card Error code. - */ -SD_Error SD_WriteBlock(uint32_t addr, uint32_t *writebuff, uint16_t BlockSize) -{ - SD_Error errorstatus = SD_OK; - uint8_t power = 0, cardstate = 0; - uint32_t timeout = 0, bytestransferred = 0; - uint32_t cardstatus = 0, count = 0, restwords = 0; - uint32_t *tempbuff = writebuff; - - if (writebuff == NULL) - { - errorstatus = SD_INVALID_PARAMETER; - return(errorstatus); - } - - TransferError = SD_OK; - TransferEnd = 0; - TotalNumberOfBytes = 0; - - SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; - SDIO_DataInitStructure.SDIO_DataLength = 0; - SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_1b; - SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard; - SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; - SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Disable; - SDIO_DataConfig(&SDIO_DataInitStructure); - SDIO_DMACmd(DISABLE); - - if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED) - { - errorstatus = SD_LOCK_UNLOCK_FAILED; - return(errorstatus); - } - - if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) - { - BlockSize = 512; - addr /= 512; - } - - /* Set the block size, both on controller and card */ - if ((BlockSize > 0) && (BlockSize <= 2048) && ((BlockSize & (BlockSize - 1)) == 0)) - { - power = convert_from_bytes_to_power_of_two(BlockSize); - - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SET_BLOCKLEN); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - } - else - { - errorstatus = SD_INVALID_PARAMETER; - return(errorstatus); - } - - /* Wait till card is ready for data Added */ - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) (RCA << 16); - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SEND_STATUS); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - - cardstatus = SDIO_GetResponse(SDIO_RESP1); - - timeout = SD_DATATIMEOUT; - - while (((cardstatus & 0x00000100) == 0) && (timeout > 0)) - { - timeout--; - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) (RCA << 16); - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SEND_STATUS); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - cardstatus = SDIO_GetResponse(SDIO_RESP1); - } - - if (timeout == 0) - { - return(SD_ERROR); - } - - /* Send CMD24 WRITE_SINGLE_BLOCK */ - SDIO_CmdInitStructure.SDIO_Argument = addr; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_WRITE_SINGLE_BLOCK); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - - TotalNumberOfBytes = BlockSize; - StopCondition = 0; - SrcBuffer = writebuff; - - SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; - SDIO_DataInitStructure.SDIO_DataLength = BlockSize; - SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) power << 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 (DeviceMode == 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 ((TotalNumberOfBytes - bytestransferred) < 32) - { - restwords = ((TotalNumberOfBytes - bytestransferred) % 4 == 0) ? ((TotalNumberOfBytes - bytestransferred) / 4) : (( TotalNumberOfBytes - 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); - } - } - else if (DeviceMode == SD_INTERRUPT_MODE) - { - SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_FLAG_TXFIFOHE | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR, ENABLE); - while ((TransferEnd == 0) && (TransferError == SD_OK)) - {} - if (TransferError != SD_OK) - { - return(TransferError); - } - } - else if (DeviceMode == SD_DMA_MODE) - { - SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR, ENABLE); - DMA_TxConfiguration(writebuff, BlockSize); - SDIO_DMACmd(ENABLE); - while (DMA_GetFlagStatus(DMA2_FLAG_TC4) == RESET) - {} - while ((TransferEnd == 0) && (TransferError == SD_OK)) - {} - if (TransferError != SD_OK) - { - return(TransferError); - } - } - - /* Clear all the static flags */ - SDIO_ClearFlag(SDIO_STATIC_FLAGS); - - /* Wait till the card is in programming state */ - errorstatus = IsCardProgramming(&cardstate); - - while ((errorstatus == SD_OK) && ((cardstate == SD_CARD_PROGRAMMING) || (cardstate == SD_CARD_RECEIVING))) - { - errorstatus = IsCardProgramming(&cardstate); - } - - return(errorstatus); -} - -/** - * @brief Allows to write blocks starting from a specified address in - * a card. - * @param addr: 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. - * @param NumberOfBlocks: number of blocks to be written. - * @retval SD_Error: SD Card Error code. - */ -SD_Error SD_WriteMultiBlocks(uint32_t addr, uint32_t *writebuff, uint16_t BlockSize, uint32_t NumberOfBlocks) -{ - SD_Error errorstatus = SD_OK; - uint8_t power = 0, cardstate = 0; - uint32_t bytestransferred = 0; - uint32_t count = 0, restwords = 0; - uint32_t *tempbuff = writebuff; - - if (writebuff == NULL) - { - errorstatus = SD_INVALID_PARAMETER; - return(errorstatus); - } - - TransferError = SD_OK; - TransferEnd = 0; - TotalNumberOfBytes = 0; - - SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; - SDIO_DataInitStructure.SDIO_DataLength = 0; - SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_1b; - SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard; - SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block; - SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Disable; - SDIO_DataConfig(&SDIO_DataInitStructure); - SDIO_DMACmd(DISABLE); - - if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED) - { - errorstatus = SD_LOCK_UNLOCK_FAILED; - return(errorstatus); - } - - if (CardType == SDIO_HIGH_CAPACITY_SD_CARD) - { - BlockSize = 512; - addr /= 512; - } - - /* Set the block size, both on controller and card */ - if ((BlockSize > 0) && (BlockSize <= 2048) && ((BlockSize & (BlockSize - 1)) == 0)) - { - power = convert_from_bytes_to_power_of_two(BlockSize); - - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SET_BLOCKLEN); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - } - else - { - errorstatus = SD_INVALID_PARAMETER; - return(errorstatus); - } - - /* Wait till card is ready for data Added */ - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) (RCA << 16); - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SEND_STATUS); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - - if (NumberOfBlocks > 1) - { - /* Common to all modes */ - if (NumberOfBlocks * BlockSize > SD_MAX_DATA_LENGTH) - { - errorstatus = SD_INVALID_PARAMETER; - return(errorstatus); - } - - if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType)) - { - /* To improve performance */ - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) (RCA << 16); - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_APP_CMD); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - /* To improve performance */ - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)NumberOfBlocks; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_SET_BLOCK_COUNT); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - } - - /* Send CMD25 WRITE_MULT_BLOCK with argument data address */ - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)addr; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_WRITE_MULT_BLOCK); - - if (SD_OK != errorstatus) - { - return(errorstatus); - } - - TotalNumberOfBytes = NumberOfBlocks * BlockSize; - StopCondition = 1; - SrcBuffer = writebuff; - - SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT; - SDIO_DataInitStructure.SDIO_DataLength = NumberOfBlocks * BlockSize; - SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) power << 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); - - if (DeviceMode == SD_POLLING_MODE) - { - while (!(SDIO->STA & (SDIO_FLAG_TXUNDERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DATAEND | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_STBITERR))) - { - if (SDIO_GetFlagStatus(SDIO_FLAG_TXFIFOHE) != RESET) - { - if (!((TotalNumberOfBytes - bytestransferred) < SD_HALFFIFOBYTES)) - { - for (count = 0; count < SD_HALFFIFO; count++) - { - SDIO_WriteData(*(tempbuff + count)); - } - tempbuff += SD_HALFFIFO; - bytestransferred += SD_HALFFIFOBYTES; - } - else - { - restwords = ((TotalNumberOfBytes - bytestransferred) % 4 == 0) ? ((TotalNumberOfBytes - bytestransferred) / 4) : - ((TotalNumberOfBytes - bytestransferred) / 4 + 1); - - for (count = 0; count < restwords; count++, tempbuff++, bytestransferred += 4) - { - SDIO_WriteData(*tempbuff); - } - } - } - } - - 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); - } - - if (SDIO_GetFlagStatus(SDIO_FLAG_DATAEND) != RESET) - { - if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType)) - { - /* Send CMD12 STOP_TRANSMISSION */ - SDIO_CmdInitStructure.SDIO_Argument = 0x0; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_STOP_TRANSMISSION); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - } - } - } - else if (DeviceMode == SD_INTERRUPT_MODE) - { - SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_TXFIFOHE | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR, ENABLE); - while ((TransferEnd == 0) && (TransferError == SD_OK)) - {} - if (TransferError != SD_OK) - { - return(TransferError); - } - } - else if (DeviceMode == SD_DMA_MODE) - { - SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR, ENABLE); - SDIO_DMACmd(ENABLE); - DMA_TxConfiguration(writebuff, (NumberOfBlocks * BlockSize)); - while (DMA_GetFlagStatus(DMA2_FLAG_TC4) == RESET) - {} - while ((TransferEnd == 0) && (TransferError == SD_OK)) - {} - if (TransferError != SD_OK) - { - return(TransferError); - } - } - } - /* Clear all the static flags */ - SDIO_ClearFlag(SDIO_STATIC_FLAGS); - - /* Wait till the card is in programming state */ - errorstatus = IsCardProgramming(&cardstate); - - while ((errorstatus == SD_OK) && ((cardstate == SD_CARD_PROGRAMMING) || (cardstate == SD_CARD_RECEIVING))) - { - errorstatus = IsCardProgramming(&cardstate); - } - - return(errorstatus); -} - -/** - * @brief Gets the cuurent data transfer state. - * @param None - * @retval SDTransferState: Data Transfer state. - * This value can be: - * - SD_NO_TRANSFER: No data transfer is acting - * - SD_TRANSFER_IN_PROGRESS: Data transfer is acting - */ -SDTransferState SD_GetTransferState(void) -{ - if (SDIO->STA & (SDIO_FLAG_TXACT | SDIO_FLAG_RXACT)) - { - return(SD_TRANSFER_IN_PROGRESS); - } - else - { - return(SD_NO_TRANSFER); - } -} - -/** - * @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 = SDIO_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(SDIO_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 = 72000 / ((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 = SDIO_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(SDIO_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 = SDIO_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(SDIO_SD_ERASE_GRP_END); - if (errorstatus != SD_OK) - { - return(errorstatus); - } - } - - /* Send CMD38 ERASE */ - SDIO_CmdInitStructure.SDIO_Argument = 0; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_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; - - if (pcardstatus == NULL) - { - errorstatus = SD_INVALID_PARAMETER; - return(errorstatus); - } - - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_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 = SDIO_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(SDIO_SET_BLOCKLEN); - - if (errorstatus != SD_OK) - { - return(errorstatus); - } - - /* CMD55 */ - SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16; - SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_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(SDIO_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 = SDIO_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(SDIO_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); - psdstatus -= 16; - for (count = 0; count < 16; count++) - { - psdstatus[count] = ((psdstatus[count] & SD_0TO7BITS) << 24) |((psdstatus[count] & SD_8TO15BITS) << 8) | - ((psdstatus[count] & SD_16TO23BITS) >> 8) |((psdstatus[count] & SD_24TO31BITS) >> 24); - } - 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) -{ - uint32_t count = 0, restwords = 0; - - if (DeviceMode == SD_INTERRUPT_MODE) - { - if (SDIO_GetITStatus(SDIO_IT_RXFIFOHF) != RESET) - { - for (count = 0; count < SD_HALFFIFO; count++) - { - *(DestBuffer + count) = SDIO_ReadData(); - } - DestBuffer += SD_HALFFIFO; - NumberOfBytes += SD_HALFFIFOBYTES; - } - else if (SDIO_GetITStatus(SDIO_IT_TXFIFOHE) != RESET) - { - if ((TotalNumberOfBytes - NumberOfBytes) < SD_HALFFIFOBYTES) - { - restwords = ((TotalNumberOfBytes - NumberOfBytes) % 4 == 0) ? - ((TotalNumberOfBytes - NumberOfBytes) / 4) : - ((TotalNumberOfBytes - NumberOfBytes) / 4 + 1); - - for (count = 0; count < restwords; count++, SrcBuffer++, NumberOfBytes += 4) - { - SDIO_WriteData(*SrcBuffer); - } - } - else - { - for (count = 0; count < SD_HALFFIFO; count++) - { - SDIO_WriteData(*(SrcBuffer + count)); - } - - SrcBuffer += SD_HALFFIFO; - NumberOfBytes += SD_HALFFIFOBYTES; - } - } - } - - if (SDIO_GetITStatus(SDIO_IT_DATAEND) != RESET) - { - if (DeviceMode != SD_DMA_MODE) - { - while ((SDIO_GetFlagStatus(SDIO_FLAG_RXDAVL) != RESET) && (NumberOfBytes < TotalNumberOfBytes)) - { - *DestBuffer = SDIO_ReadData(); - DestBuffer++; - NumberOfBytes += 4; - } - } - - if (StopCondition == 1) - { - TransferError = SD_StopTransfer(); - } - else - { - TransferError = SD_OK; - } - SDIO_ClearITPendingBit(SDIO_IT_DATAEND); - 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); - TransferEnd = 1; - NumberOfBytes = 0; - return(TransferError); - } - - if (SDIO_GetITStatus(SDIO_IT_DCRCFAIL) != RESET) - { - SDIO_ClearITPendingBit(SDIO_IT_DCRCFAIL); - 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); - NumberOfBytes = 0; - TransferError = SD_DATA_CRC_FAIL; - return(SD_DATA_CRC_FAIL); - } - - if (SDIO_GetITStatus(SDIO_IT_DTIMEOUT) != RESET) - { - SDIO_ClearITPendingBit(SDIO_IT_DTIMEOUT); - 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); - NumberOfBytes = 0; - TransferError = SD_DATA_TIMEOUT; - return(SD_DATA_TIMEOUT); - } - - if (SDIO_GetITStatus(SDIO_IT_RXOVERR) != RESET) - { - SDIO_ClearITPendingBit(SDIO_IT_RXOVERR); - 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); - NumberOfBytes = 0; - TransferError = SD_RX_OVERRUN; - return(SD_RX_OVERRUN); - } - - if (SDIO_GetITStatus(SDIO_IT_TXUNDERR) != RESET) - { - SDIO_ClearITPendingBit(SDIO_IT_TXUNDERR); - 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); - NumberOfBytes = 0; - TransferError = SD_TX_UNDERRUN; - return(SD_TX_UNDERRUN); - } - - if (SDIO_GetITStatus(SDIO_IT_STBITERR) != RESET) - { - SDIO_ClearITPendingBit(SDIO_IT_STBITERR); - 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); - NumberOfBytes = 0; - TransferError = SD_START_BIT_ERR; - return(SD_START_BIT_ERR); - } - - return(SD_OK); -} - -/** - * @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 = SDIO_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(SDIO_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 = SDIO_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(SDIO_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 = SDIO_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(SDIO_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 = SDIO_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(SDIO_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 = SDIO_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 != SDIO_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 = SDIO_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(SDIO_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 = SDIO_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(SDIO_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 = SDIO_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(SDIO_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 - */ -static uint8_t convert_from_bytes_to_power_of_two(uint16_t NumberOfBytes) -{ - uint8_t count = 0; - - while (NumberOfBytes != 1) - { - NumberOfBytes >>= 1; - count++; - } - return(count); -} - -/** - * @brief Configures the SDIO Corresponding GPIO Ports - * @param None - * @retval None - */ -static void GPIO_Configuration(void) -{ - GPIO_InitTypeDef GPIO_InitStructure; - - /* GPIOC and GPIOD Periph clock enable */ - RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD, ENABLE); - - /* Configure PC.08, PC.09, PC.10, PC.11, PC.12 pin: D0, D1, D2, D3, CLK pin */ - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12; - GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; - GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; - GPIO_Init(GPIOC, &GPIO_InitStructure); - - /* Configure PD.02 CMD line */ - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; - GPIO_Init(GPIOD, &GPIO_InitStructure); -} - -/** - * @brief Configures the DMA2 Channel4 for SDIO Tx request. - * @param BufferSRC: pointer to the source buffer - * @param BufferSize: buffer size - * @retval None - */ -static void DMA_TxConfiguration(uint32_t *BufferSRC, uint32_t BufferSize) -{ - DMA_InitTypeDef DMA_InitStructure; - - DMA_ClearFlag(DMA2_FLAG_TC4 | DMA2_FLAG_TE4 | DMA2_FLAG_HT4 | DMA2_FLAG_GL4); - - /* DMA2 Channel4 disable */ - DMA_Cmd(DMA2_Channel4, DISABLE); - - /* DMA2 Channel4 Config */ - DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_Address; - DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)BufferSRC; - DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST; - DMA_InitStructure.DMA_BufferSize = BufferSize / 4; - DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; - DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; - DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word; - DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word; - DMA_InitStructure.DMA_Mode = DMA_Mode_Normal; - DMA_InitStructure.DMA_Priority = DMA_Priority_High; - DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; - DMA_Init(DMA2_Channel4, &DMA_InitStructure); - - /* DMA2 Channel4 enable */ - DMA_Cmd(DMA2_Channel4, 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 DMA_RxConfiguration(uint32_t *BufferDST, uint32_t BufferSize) -{ - DMA_InitTypeDef DMA_InitStructure; - - DMA_ClearFlag(DMA2_FLAG_TC4 | DMA2_FLAG_TE4 | DMA2_FLAG_HT4 | DMA2_FLAG_GL4); - - /* DMA2 Channel4 disable */ - DMA_Cmd(DMA2_Channel4, DISABLE); - - /* DMA2 Channel4 Config */ - DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_Address; - DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)BufferDST; - DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC; - DMA_InitStructure.DMA_BufferSize = BufferSize / 4; - DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; - DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; - DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word; - DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word; - DMA_InitStructure.DMA_Mode = DMA_Mode_Normal; - DMA_InitStructure.DMA_Priority = DMA_Priority_High; - DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; - DMA_Init(DMA2_Channel4, &DMA_InitStructure); - - /* DMA2 Channel4 enable */ - DMA_Cmd(DMA2_Channel4, ENABLE); -} - -/** - * @} - */ - -/** - * @} - */ - -/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/ - -/* - * RT-Thread SD Card Driver - * 20090417 Bernard - */ -#include -#include - -static struct rt_device sdcard_device; -static SD_CardInfo SDCardInfo; -static struct dfs_partition part; -static struct rt_semaphore sd_lock; - -/* RT-Thread Device Driver Interface */ -static rt_err_t rt_sdcard_init(rt_device_t dev) -{ - NVIC_InitTypeDef NVIC_InitStructure; - - 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); - - if (rt_sem_init(&sd_lock, "sdlock", 1, RT_IPC_FLAG_FIFO) != RT_EOK) - { - rt_kprintf("init sd lock semaphore failed\n"); - } - - return RT_EOK; -} - -static rt_err_t rt_sdcard_open(rt_device_t dev, rt_uint16_t oflag) -{ - - return RT_EOK; -} - -static rt_err_t rt_sdcard_close(rt_device_t dev) -{ - return RT_EOK; -} - -/* set sector size to 512 */ -#define SECTOR_SIZE 512 -static rt_size_t rt_sdcard_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size) -{ - SD_Error status; - rt_uint32_t i, retry; - - // rt_kprintf("read: 0x%x, size %d\n", pos, size); - - rt_sem_take(&sd_lock, RT_WAITING_FOREVER); - retry = 3; + + return RT_EOK; +} + +static rt_err_t rt_sdcard_open(rt_device_t dev, rt_uint16_t oflag) +{ + return RT_EOK; +} + +static rt_err_t rt_sdcard_close(rt_device_t dev) +{ + return RT_EOK; +} + +static rt_size_t rt_sdcard_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size) +{ + SD_Error status; + rt_uint32_t nr = size / SECTOR_SIZE, retry; + + rt_sem_take(&sd_lock, RT_WAITING_FOREVER); + + retry = 3; + while(retry) + { + /* read all sectors */ + if (((rt_uint32_t)buffer % 4 != 0) || + ((rt_uint32_t)buffer > 0x20080000)) + { + rt_uint32_t index; + + /* which is not alignment with 4 or chip SRAM */ + for (index = 0; index < nr; index ++) + { + status = SD_ReadBlock((part.offset + index) * SECTOR_SIZE + pos, + (uint32_t*)_sdcard_buffer, SECTOR_SIZE); + + if (status != SD_OK) break; + + /* copy to the buffer */ + rt_memcpy(((rt_uint8_t*)buffer + index * SECTOR_SIZE), _sdcard_buffer, SECTOR_SIZE); + } + } + else + { + if (nr == 1) + { + status = SD_ReadBlock(part.offset * SECTOR_SIZE + pos, + (uint32_t*)buffer, SECTOR_SIZE); + } + else + { + status = SD_ReadMultiBlocks(part.offset * SECTOR_SIZE + pos, + (uint32_t*)buffer, SECTOR_SIZE, nr); + } + } + + if (status == SD_OK) break; + + retry --; + } + rt_sem_release(&sd_lock); + + if (status == SD_OK) return size; + + rt_kprintf("read failed: %d, buffer 0x%08x\n", status, buffer); + return 0; +} + +static rt_size_t rt_sdcard_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size) +{ + SD_Error status; + rt_uint32_t nr = size / SECTOR_SIZE; + + rt_sem_take(&sd_lock, RT_WAITING_FOREVER); + /* read all sectors */ - for (i = 0; i < size / SECTOR_SIZE; i ++) - { -__retry: - status = SD_ReadBlock((part.offset + i)* SECTOR_SIZE + pos, - (uint32_t*)((rt_uint8_t*)buffer + i * SECTOR_SIZE), - SECTOR_SIZE); - if (status != SD_OK) + if (((rt_uint32_t)buffer % 4 != 0) || + ((rt_uint32_t)buffer > 0x20080000)) + { + rt_uint32_t index; + + /* which is not alignment with 4 or chip SRAM */ + for (index = 0; index < nr; index ++) + { + /* copy to the buffer */ + rt_memcpy(_sdcard_buffer, ((rt_uint8_t*)buffer + index * SECTOR_SIZE), SECTOR_SIZE); + + status = SD_WriteBlock((part.offset + index) * SECTOR_SIZE + pos, + (uint32_t*)_sdcard_buffer, SECTOR_SIZE); + + if (status != SD_OK) break; + } + } + else + { + if (nr == 1) + { + status = SD_WriteBlock(part.offset * SECTOR_SIZE + pos, + (uint32_t*)buffer, SECTOR_SIZE); + } + else + { + status = SD_WriteMultiBlocks(part.offset * SECTOR_SIZE + pos, + (uint32_t*)buffer, SECTOR_SIZE, nr); + } + } + + rt_sem_release(&sd_lock); + + if (status == SD_OK) return size; + + rt_kprintf("write failed: %d, buffer 0x%08x\n", status, buffer); + return 0; +} + +static rt_err_t rt_sdcard_control(rt_device_t dev, rt_uint8_t cmd, void *args) +{ + return RT_EOK; +} + +void rt_hw_sdcard_init() +{ + if (SD_Init() == SD_OK) + { + SD_Error status; + rt_uint8_t *sector; + + status = SD_GetCardInfo(&SDCardInfo); + if (status != SD_OK) goto __return; + + status = SD_SelectDeselect((u32) (SDCardInfo.RCA << 16)); + if (status != SD_OK) goto __return; + + SD_EnableWideBusOperation(SDIO_BusWide_1b); + SD_SetDeviceMode(SD_DMA_MODE); + + /* get the first sector to read partition table */ + sector = (rt_uint8_t*) rt_malloc (512); + if (sector == RT_NULL) + { + rt_kprintf("allocate partition sector buffer failed\n"); + return; + } + status = SD_ReadBlock(0, (uint32_t*)sector, 512); + if (status == SD_OK) { - -- retry; - if (retry != 0) goto __retry; - else break; - } - } - - rt_sem_release(&sd_lock); - - if (status == SD_OK) return size; - - rt_kprintf("read failed: %d, buffer 0x%08x\n", status, buffer); - return 0; -} - -static rt_size_t rt_sdcard_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size) -{ - SD_Error status; - rt_uint32_t i; - - // rt_kprintf("write: 0x%x, size %d\n", pos, size); - - rt_sem_take(&sd_lock, RT_WAITING_FOREVER); - - /* write all sectors */ - for (i = 0; i < size / SECTOR_SIZE; i ++) - { - status = SD_WriteBlock((part.offset + i)* SECTOR_SIZE + pos, - (uint32_t*)((rt_uint8_t*)buffer + i * SECTOR_SIZE), - SECTOR_SIZE); - if (status != SD_OK) - { - rt_kprintf("sd card write failed\n"); - break; - } - } - - rt_sem_release(&sd_lock); - if (status == SD_OK) return size; - - rt_kprintf("write failed: %d, buffer 0x%08x\n", status, buffer); - return 0; -} - -static rt_err_t rt_sdcard_control(rt_device_t dev, rt_uint8_t cmd, void *args) -{ - return RT_EOK; -} - -void rt_hw_sdcard_init() -{ - if ( SD_Init() == SD_OK ) - { - SD_Error status; - rt_uint8_t *sector; - - SD_EnableWideBusOperation(SDIO_BusWide_1b); - - status = SD_GetCardInfo(&SDCardInfo); - if (status != SD_OK) goto __return; - - status = SD_SelectDeselect((u32) (SDCardInfo.RCA << 16)); - if (status != SD_OK) goto __return; - - SD_SetDeviceMode(SD_DMA_MODE); - - /* get the first sector to read partition table */ - sector = (rt_uint8_t*) rt_malloc (512); - if (sector == RT_NULL) - { - rt_kprintf("allocate partition sector buffer failed\n"); - return; - } - status = SD_ReadBlock(0, (uint32_t*)sector, 512); - if (status == SD_OK) - { - /* get the first partition */ - if (dfs_filesystem_get_partition(&part, sector, 0) != 0) - { - /* there is no partition */ - part.offset = 0; - part.size = 0; - } - } - else - { - /* there is no partition table */ - part.offset = 0; - part.size = 0; - } - - /* release sector buffer */ - rt_free(sector); - - /* register sdcard device */ - sdcard_device.init = rt_sdcard_init; - sdcard_device.open = rt_sdcard_open; - sdcard_device.close = rt_sdcard_close; - sdcard_device.read = rt_sdcard_read; - sdcard_device.write = rt_sdcard_write; - sdcard_device.control = rt_sdcard_control; - - /* no private */ - sdcard_device.private = RT_NULL; - - rt_device_register(&sdcard_device, "sd0", - RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE); - - return; - } - -__return: - rt_kprintf("sdcard init failed\n"); -} + /* get the first partition */ + if (dfs_filesystem_get_partition(&part, sector, 0) != 0) + { + /* there is no partition */ + part.offset = 0; + part.size = 0; + } + } + else + { + /* there is no partition table */ + part.offset = 0; + part.size = 0; + } + + /* release sector buffer */ + rt_free(sector); + + /* register sdcard device */ + sdcard_device.init = rt_sdcard_init; + sdcard_device.open = rt_sdcard_open; + sdcard_device.close = rt_sdcard_close; + sdcard_device.read = rt_sdcard_read; + sdcard_device.write = rt_sdcard_write; + sdcard_device.control = rt_sdcard_control; + + /* no private */ + sdcard_device.private = &SDCardInfo; + + rt_device_register(&sdcard_device, "sd0", + RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE); + + return; + } + +__return: + rt_kprintf("sdcard init failed\n"); +} diff --git a/bsp/stm3210/sdcard.h b/bsp/stm3210/sdcard.h index 386c12d96..fd89d94af 100644 --- a/bsp/stm3210/sdcard.h +++ b/bsp/stm3210/sdcard.h @@ -1,285 +1,285 @@ -/** - ****************************************************************************** - * @file SDIO/sdcard.h - * @author MCD Application Team - * @version V3.1.0 - * @date 06/19/2009 - * @brief This file contains all the functions prototypes for the SD Card - * driver firmware library. - ****************************************************************************** - * @copy - * - * 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. - * - *

© COPYRIGHT 2009 STMicroelectronics

- */ - -/** @addtogroup STM32F10x_StdPeriph_Examples - * @{ - */ - -/** @addtogroup SDIO_Example - * @{ - */ - -/* Define to prevent recursive inclusion -------------------------------------*/ -#ifndef __SDCARD_H -#define __SDCARD_H - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f10x.h" - -/* Exported types ------------------------------------------------------------*/ -typedef enum -{ - /* SDIO specific error defines */ - 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), - - /* 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, -} SD_Error; - -/* SDIO Commands Index */ -#define SDIO_GO_IDLE_STATE ((uint8_t)0) -#define SDIO_SEND_OP_COND ((uint8_t)1) -#define SDIO_ALL_SEND_CID ((uint8_t)2) -#define SDIO_SET_REL_ADDR ((uint8_t)3) /* SDIO_SEND_REL_ADDR for SD Card */ -#define SDIO_SET_DSR ((uint8_t)4) -#define SDIO_SDIO_SEN_OP_COND ((uint8_t)5) -#define SDIO_HS_SWITCH ((uint8_t)6) -#define SDIO_SEL_DESEL_CARD ((uint8_t)7) -#define SDIO_HS_SEND_EXT_CSD ((uint8_t)8) -#define SDIO_SEND_CSD ((uint8_t)9) -#define SDIO_SEND_CID ((uint8_t)10) -#define SDIO_READ_DAT_UNTIL_STOP ((uint8_t)11) /* SD Card doesn't support it */ -#define SDIO_STOP_TRANSMISSION ((uint8_t)12) -#define SDIO_SEND_STATUS ((uint8_t)13) -#define SDIO_HS_BUSTEST_READ ((uint8_t)14) -#define SDIO_GO_INACTIVE_STATE ((uint8_t)15) -#define SDIO_SET_BLOCKLEN ((uint8_t)16) -#define SDIO_READ_SINGLE_BLOCK ((uint8_t)17) -#define SDIO_READ_MULT_BLOCK ((uint8_t)18) -#define SDIO_HS_BUSTEST_WRITE ((uint8_t)19) -#define SDIO_WRITE_DAT_UNTIL_STOP ((uint8_t)20) /* SD Card doesn't support it */ -#define SDIO_SET_BLOCK_COUNT ((uint8_t)23) /* SD Card doesn't support it */ -#define SDIO_WRITE_SINGLE_BLOCK ((uint8_t)24) -#define SDIO_WRITE_MULT_BLOCK ((uint8_t)25) -#define SDIO_PROG_CID ((uint8_t)26) /* reserved for manufacturers */ -#define SDIO_PROG_CSD ((uint8_t)27) -#define SDIO_SET_WRITE_PROT ((uint8_t)28) -#define SDIO_CLR_WRITE_PROT ((uint8_t)29) -#define SDIO_SEND_WRITE_PROT ((uint8_t)30) -#define SDIO_SD_ERASE_GRP_START ((uint8_t)32) /* To set the address of the first write - block to be erased. (For SD card only) */ -#define SDIO_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 SDIO_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 SDIO_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 SDIO_ERASE ((uint8_t)38) -#define SDIO_FAST_IO ((uint8_t)39) /* SD Card doesn't support it */ -#define SDIO_GO_IRQ_STATE ((uint8_t)40) /* SD Card doesn't support it */ -#define SDIO_LOCK_UNLOCK ((uint8_t)42) -#define SDIO_APP_CMD ((uint8_t)55) -#define SDIO_GEN_CMD ((uint8_t)56) -#define SDIO_NO_CMD ((uint8_t)64) - -/* Following commands are SD Card Specific commands. - SDIO_APP_CMD should be sent before sending these - commands. */ -#define SDIO_APP_SD_SET_BUSWIDTH ((uint8_t)6) /* For SD Card only */ -#define SDIO_SD_APP_STAUS ((uint8_t)13) /* For SD Card only */ -#define SDIO_SD_APP_SEND_NUM_WRITE_BLOCKS ((uint8_t)22) /* For SD Card only */ -#define SDIO_SD_APP_OP_COND ((uint8_t)41) /* For SD Card only */ -#define SDIO_SD_APP_SET_CLR_CARD_DETECT ((uint8_t)42) /* For SD Card only */ -#define SDIO_SD_APP_SEND_SCR ((uint8_t)51) /* For SD Card only */ -#define SDIO_SDIO_RW_DIRECT ((uint8_t)52) /* For SD I/O Card only */ -#define SDIO_SDIO_RW_EXTENDED ((uint8_t)53) /* For SD I/O Card only */ - -/* Following commands are SD Card Specific security commands. - SDIO_APP_CMD should be sent before sending these commands. */ -#define SDIO_SD_APP_GET_MKB ((uint8_t)43) /* For SD Card only */ -#define SDIO_SD_APP_GET_MID ((uint8_t)44) /* For SD Card only */ -#define SDIO_SD_APP_SET_CER_RN1 ((uint8_t)45) /* For SD Card only */ -#define SDIO_SD_APP_GET_CER_RN2 ((uint8_t)46) /* For SD Card only */ -#define SDIO_SD_APP_SET_CER_RES2 ((uint8_t)47) /* For SD Card only */ -#define SDIO_SD_APP_GET_CER_RES1 ((uint8_t)48) /* For SD Card only */ -#define SDIO_SD_APP_SECURE_READ_MULTIPLE_BLOCK ((uint8_t)18) /* For SD Card only */ -#define SDIO_SD_APP_SECURE_WRITE_MULTIPLE_BLOCK ((uint8_t)25) /* For SD Card only */ -#define SDIO_SD_APP_SECURE_ERASE ((uint8_t)38) /* For SD Card only */ -#define SDIO_SD_APP_CHANGE_SECURE_AREA ((uint8_t)49) /* For SD Card only */ -#define SDIO_SD_APP_SECURE_WRITE_MKB ((uint8_t)48) /* For SD Card only */ - -typedef enum -{ - SD_NO_TRANSFER = 0, - SD_TRANSFER_IN_PROGRESS -} SDTransferState; - -typedef struct -{ - uint16_t TransferredBytes; - SD_Error TransferError; - uint8_t padding; -} SDLastTransferInfo; - -typedef struct /* Card Specific Data */ -{ - __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; - -typedef struct /*Card Identification Data*/ -{ - __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; - -typedef struct -{ - SD_CSD SD_csd; - SD_CID SD_cid; - uint32_t CardCapacity; /* Card Capacity */ - uint32_t CardBlockSize; /* Card Block Size */ - uint16_t RCA; - uint8_t CardType; -} SD_CardInfo; - -/* Exported constants --------------------------------------------------------*/ -#define SD_DMA_MODE ((uint32_t)0x00000000) -#define SD_INTERRUPT_MODE ((uint32_t)0x00000001) -#define SD_POLLING_MODE ((uint32_t)0x00000002) - -/* Supported Memory Cards */ -#define SDIO_STD_CAPACITY_SD_CARD_V1_1 ((uint32_t)0x0) -#define SDIO_STD_CAPACITY_SD_CARD_V2_0 ((uint32_t)0x1) -#define SDIO_HIGH_CAPACITY_SD_CARD ((uint32_t)0x2) -#define SDIO_MULTIMEDIA_CARD ((uint32_t)0x3) -#define SDIO_SECURE_DIGITAL_IO_CARD ((uint32_t)0x4) -#define SDIO_HIGH_SPEED_MULTIMEDIA_CARD ((uint32_t)0x5) -#define SDIO_SECURE_DIGITAL_IO_COMBO_CARD ((uint32_t)0x6) -#define SDIO_HIGH_CAPACITY_MMC_CARD ((uint32_t)0x7) - -/* Exported macro ------------------------------------------------------------*/ -/* Exported functions ------------------------------------------------------- */ -SD_Error SD_Init(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_EnableWideBusOperation(uint32_t WideMode); -SD_Error SD_SetDeviceMode(uint32_t Mode); -SD_Error SD_SelectDeselect(uint32_t addr); -SD_Error SD_ReadBlock(uint32_t addr, uint32_t *readbuff, uint16_t BlockSize); -SD_Error SD_ReadMultiBlocks(uint32_t addr, uint32_t *readbuff, uint16_t BlockSize, uint32_t NumberOfBlocks); -SD_Error SD_WriteBlock(uint32_t addr, uint32_t *writebuff, uint16_t BlockSize); -SD_Error SD_WriteMultiBlocks(uint32_t addr, uint32_t *writebuff, uint16_t BlockSize, uint32_t NumberOfBlocks); -SDTransferState SD_GetTransferState(void); -SD_Error SD_StopTransfer(void); -SD_Error SD_Erase(uint32_t startaddr, uint32_t endaddr); -SD_Error SD_SendStatus(uint32_t *pcardstatus); -SD_Error SD_SendSDStatus(uint32_t *psdstatus); -SD_Error SD_ProcessIRQSrc(void); - -#endif /* __SDCARD_H */ - -/** - * @} - */ - -/** - * @} - */ - -/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/ +/** + ****************************************************************************** + * @file SDIO/sdcard.h + * @author MCD Application Team + * @version V3.1.2 + * @date 09/28/2009 + * @brief This file contains all the functions prototypes for the SD Card + * driver firmware library. + ****************************************************************************** + * @copy + * + * 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. + * + *

© COPYRIGHT 2009 STMicroelectronics

+ */ + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup SDIO_Example + * @{ + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __SDCARD_H +#define __SDCARD_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +typedef enum +{ + /* SDIO specific error defines */ + 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), + + /* 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, +} SD_Error; + +/* SDIO Commands Index */ +#define SDIO_GO_IDLE_STATE ((uint8_t)0) +#define SDIO_SEND_OP_COND ((uint8_t)1) +#define SDIO_ALL_SEND_CID ((uint8_t)2) +#define SDIO_SET_REL_ADDR ((uint8_t)3) /* SDIO_SEND_REL_ADDR for SD Card */ +#define SDIO_SET_DSR ((uint8_t)4) +#define SDIO_SDIO_SEN_OP_COND ((uint8_t)5) +#define SDIO_HS_SWITCH ((uint8_t)6) +#define SDIO_SEL_DESEL_CARD ((uint8_t)7) +#define SDIO_HS_SEND_EXT_CSD ((uint8_t)8) +#define SDIO_SEND_CSD ((uint8_t)9) +#define SDIO_SEND_CID ((uint8_t)10) +#define SDIO_READ_DAT_UNTIL_STOP ((uint8_t)11) /* SD Card doesn't support it */ +#define SDIO_STOP_TRANSMISSION ((uint8_t)12) +#define SDIO_SEND_STATUS ((uint8_t)13) +#define SDIO_HS_BUSTEST_READ ((uint8_t)14) +#define SDIO_GO_INACTIVE_STATE ((uint8_t)15) +#define SDIO_SET_BLOCKLEN ((uint8_t)16) +#define SDIO_READ_SINGLE_BLOCK ((uint8_t)17) +#define SDIO_READ_MULT_BLOCK ((uint8_t)18) +#define SDIO_HS_BUSTEST_WRITE ((uint8_t)19) +#define SDIO_WRITE_DAT_UNTIL_STOP ((uint8_t)20) /* SD Card doesn't support it */ +#define SDIO_SET_BLOCK_COUNT ((uint8_t)23) /* SD Card doesn't support it */ +#define SDIO_WRITE_SINGLE_BLOCK ((uint8_t)24) +#define SDIO_WRITE_MULT_BLOCK ((uint8_t)25) +#define SDIO_PROG_CID ((uint8_t)26) /* reserved for manufacturers */ +#define SDIO_PROG_CSD ((uint8_t)27) +#define SDIO_SET_WRITE_PROT ((uint8_t)28) +#define SDIO_CLR_WRITE_PROT ((uint8_t)29) +#define SDIO_SEND_WRITE_PROT ((uint8_t)30) +#define SDIO_SD_ERASE_GRP_START ((uint8_t)32) /* To set the address of the first write + block to be erased. (For SD card only) */ +#define SDIO_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 SDIO_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 SDIO_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 SDIO_ERASE ((uint8_t)38) +#define SDIO_FAST_IO ((uint8_t)39) /* SD Card doesn't support it */ +#define SDIO_GO_IRQ_STATE ((uint8_t)40) /* SD Card doesn't support it */ +#define SDIO_LOCK_UNLOCK ((uint8_t)42) +#define SDIO_APP_CMD ((uint8_t)55) +#define SDIO_GEN_CMD ((uint8_t)56) +#define SDIO_NO_CMD ((uint8_t)64) + +/* Following commands are SD Card Specific commands. + SDIO_APP_CMD should be sent before sending these + commands. */ +#define SDIO_APP_SD_SET_BUSWIDTH ((uint8_t)6) /* For SD Card only */ +#define SDIO_SD_APP_STAUS ((uint8_t)13) /* For SD Card only */ +#define SDIO_SD_APP_SEND_NUM_WRITE_BLOCKS ((uint8_t)22) /* For SD Card only */ +#define SDIO_SD_APP_OP_COND ((uint8_t)41) /* For SD Card only */ +#define SDIO_SD_APP_SET_CLR_CARD_DETECT ((uint8_t)42) /* For SD Card only */ +#define SDIO_SD_APP_SEND_SCR ((uint8_t)51) /* For SD Card only */ +#define SDIO_SDIO_RW_DIRECT ((uint8_t)52) /* For SD I/O Card only */ +#define SDIO_SDIO_RW_EXTENDED ((uint8_t)53) /* For SD I/O Card only */ + +/* Following commands are SD Card Specific security commands. + SDIO_APP_CMD should be sent before sending these commands. */ +#define SDIO_SD_APP_GET_MKB ((uint8_t)43) /* For SD Card only */ +#define SDIO_SD_APP_GET_MID ((uint8_t)44) /* For SD Card only */ +#define SDIO_SD_APP_SET_CER_RN1 ((uint8_t)45) /* For SD Card only */ +#define SDIO_SD_APP_GET_CER_RN2 ((uint8_t)46) /* For SD Card only */ +#define SDIO_SD_APP_SET_CER_RES2 ((uint8_t)47) /* For SD Card only */ +#define SDIO_SD_APP_GET_CER_RES1 ((uint8_t)48) /* For SD Card only */ +#define SDIO_SD_APP_SECURE_READ_MULTIPLE_BLOCK ((uint8_t)18) /* For SD Card only */ +#define SDIO_SD_APP_SECURE_WRITE_MULTIPLE_BLOCK ((uint8_t)25) /* For SD Card only */ +#define SDIO_SD_APP_SECURE_ERASE ((uint8_t)38) /* For SD Card only */ +#define SDIO_SD_APP_CHANGE_SECURE_AREA ((uint8_t)49) /* For SD Card only */ +#define SDIO_SD_APP_SECURE_WRITE_MKB ((uint8_t)48) /* For SD Card only */ + +typedef enum +{ + SD_NO_TRANSFER = 0, + SD_TRANSFER_IN_PROGRESS +} SDTransferState; + +typedef struct +{ + uint16_t TransferredBytes; + SD_Error TransferError; + uint8_t padding; +} SDLastTransferInfo; + +typedef struct /* Card Specific Data */ +{ + __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; + +typedef struct /*Card Identification Data*/ +{ + __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; + +typedef struct +{ + SD_CSD SD_csd; + SD_CID SD_cid; + uint32_t CardCapacity; /* Card Capacity */ + uint32_t CardBlockSize; /* Card Block Size */ + uint16_t RCA; + uint8_t CardType; +} SD_CardInfo; + +/* Exported constants --------------------------------------------------------*/ +#define SD_DMA_MODE ((uint32_t)0x00000000) +#define SD_INTERRUPT_MODE ((uint32_t)0x00000001) +#define SD_POLLING_MODE ((uint32_t)0x00000002) + +/* Supported Memory Cards */ +#define SDIO_STD_CAPACITY_SD_CARD_V1_1 ((uint32_t)0x0) +#define SDIO_STD_CAPACITY_SD_CARD_V2_0 ((uint32_t)0x1) +#define SDIO_HIGH_CAPACITY_SD_CARD ((uint32_t)0x2) +#define SDIO_MULTIMEDIA_CARD ((uint32_t)0x3) +#define SDIO_SECURE_DIGITAL_IO_CARD ((uint32_t)0x4) +#define SDIO_HIGH_SPEED_MULTIMEDIA_CARD ((uint32_t)0x5) +#define SDIO_SECURE_DIGITAL_IO_COMBO_CARD ((uint32_t)0x6) +#define SDIO_HIGH_CAPACITY_MMC_CARD ((uint32_t)0x7) + +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ +SD_Error SD_Init(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_EnableWideBusOperation(uint32_t WideMode); +SD_Error SD_SetDeviceMode(uint32_t Mode); +SD_Error SD_SelectDeselect(uint32_t addr); +SD_Error SD_ReadBlock(uint32_t addr, uint32_t *readbuff, uint16_t BlockSize); +SD_Error SD_ReadMultiBlocks(uint32_t addr, uint32_t *readbuff, uint16_t BlockSize, uint32_t NumberOfBlocks); +SD_Error SD_WriteBlock(uint32_t addr, uint32_t *writebuff, uint16_t BlockSize); +SD_Error SD_WriteMultiBlocks(uint32_t addr, uint32_t *writebuff, uint16_t BlockSize, uint32_t NumberOfBlocks); +SDTransferState SD_GetTransferState(void); +SD_Error SD_StopTransfer(void); +SD_Error SD_Erase(uint32_t startaddr, uint32_t endaddr); +SD_Error SD_SendStatus(uint32_t *pcardstatus); +SD_Error SD_SendSDStatus(uint32_t *psdstatus); +SD_Error SD_ProcessIRQSrc(void); + +#endif /* __SDCARD_H */ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/ -- GitLab