diff options
Diffstat (limited to 'src/stm32lib/examples/SDIO/sdcard.c')
| -rwxr-xr-x | src/stm32lib/examples/SDIO/sdcard.c | 2895 |
1 files changed, 0 insertions, 2895 deletions
diff --git a/src/stm32lib/examples/SDIO/sdcard.c b/src/stm32lib/examples/SDIO/sdcard.c deleted file mode 100755 index c837e79..0000000 --- a/src/stm32lib/examples/SDIO/sdcard.c +++ /dev/null @@ -1,2895 +0,0 @@ -/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
-* File Name : sdcard.c
-* Author : MCD Application Team
-* Version : V2.0.1
-* Date : 06/13/2008
-* Description : This file provides all the SD Card driver firmware
-* functions.
-********************************************************************************
-* 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.
-*******************************************************************************/
-
-/* Includes ------------------------------------------------------------------*/
-#include "sdcard.h"
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-#define NULL 0
-#define SDIO_STATIC_FLAGS ((u32)0x000005FF)
-#define SDIO_CMD0TIMEOUT ((u32)0x00002710)
-#define SDIO_FIFO_Address ((u32)0x40018080)
-
-/* Mask for errors Card Status R1 (OCR Register) */
-#define SD_OCR_ADDR_OUT_OF_RANGE ((u32)0x80000000)
-#define SD_OCR_ADDR_MISALIGNED ((u32)0x40000000)
-#define SD_OCR_BLOCK_LEN_ERR ((u32)0x20000000)
-#define SD_OCR_ERASE_SEQ_ERR ((u32)0x10000000)
-#define SD_OCR_BAD_ERASE_PARAM ((u32)0x08000000)
-#define SD_OCR_WRITE_PROT_VIOLATION ((u32)0x04000000)
-#define SD_OCR_LOCK_UNLOCK_FAILED ((u32)0x01000000)
-#define SD_OCR_COM_CRC_FAILED ((u32)0x00800000)
-#define SD_OCR_ILLEGAL_CMD ((u32)0x00400000)
-#define SD_OCR_CARD_ECC_FAILED ((u32)0x00200000)
-#define SD_OCR_CC_ERROR ((u32)0x00100000)
-#define SD_OCR_GENERAL_UNKNOWN_ERROR ((u32)0x00080000)
-#define SD_OCR_STREAM_READ_UNDERRUN ((u32)0x00040000)
-#define SD_OCR_STREAM_WRITE_OVERRUN ((u32)0x00020000)
-#define SD_OCR_CID_CSD_OVERWRIETE ((u32)0x00010000)
-#define SD_OCR_WP_ERASE_SKIP ((u32)0x00008000)
-#define SD_OCR_CARD_ECC_DISABLED ((u32)0x00004000)
-#define SD_OCR_ERASE_RESET ((u32)0x00002000)
-#define SD_OCR_AKE_SEQ_ERROR ((u32)0x00000008)
-#define SD_OCR_ERRORBITS ((u32)0xFDFFE008)
-
-/* Masks for R6 Response */
-#define SD_R6_GENERAL_UNKNOWN_ERROR ((u32)0x00002000)
-#define SD_R6_ILLEGAL_CMD ((u32)0x00004000)
-#define SD_R6_COM_CRC_FAILED ((u32)0x00008000)
-
-#define SD_VOLTAGE_WINDOW_SD ((u32)0x80100000)
-#define SD_HIGH_CAPACITY ((u32)0x40000000)
-#define SD_STD_CAPACITY ((u32)0x00000000)
-#define SD_CHECK_PATTERN ((u32)0x000001AA)
-
-#define SD_MAX_VOLT_TRIAL ((u32)0x0000FFFF)
-#define SD_ALLZERO ((u32)0x00000000)
-
-#define SD_WIDE_BUS_SUPPORT ((u32)0x00040000)
-#define SD_SINGLE_BUS_SUPPORT ((u32)0x00010000)
-#define SD_CARD_LOCKED ((u32)0x02000000)
-#define SD_CARD_PROGRAMMING ((u32)0x00000007)
-#define SD_CARD_RECEIVING ((u32)0x00000006)
-#define SD_DATATIMEOUT ((u32)0x000FFFFF)
-#define SD_0TO7BITS ((u32)0x000000FF)
-#define SD_8TO15BITS ((u32)0x0000FF00)
-#define SD_16TO23BITS ((u32)0x00FF0000)
-#define SD_24TO31BITS ((u32)0xFF000000)
-#define SD_MAX_DATA_LENGTH ((u32)0x01FFFFFF)
-
-#define SD_HALFFIFO ((u32)0x00000008)
-#define SD_HALFFIFOBYTES ((u32)0x00000020)
-
-/* Command Class Supported */
-#define SD_CCCC_LOCK_UNLOCK ((u32)0x00000080)
-#define SD_CCCC_WRITE_PROT ((u32)0x00000040)
-#define SD_CCCC_ERASE ((u32)0x00000020)
-
-/* Following commands are SD Card Specific commands.
- SDIO_APP_CMD should be sent before sending these commands. */
-#define SDIO_SEND_IF_COND ((u32)0x00000008)
-
-#define SDIO_MULTIMEDIA_CARD ((u32)0x0)
-#define SDIO_SECURE_DIGITAL_CARD ((u32)0x1)
-#define SDIO_SECURE_DIGITAL_IO_CARD ((u32)0x2)
-#define SDIO_HIGH_SPEED_MULTIMEDIA_CARD ((u32)0x3)
-#define SDIO_SECURE_DIGITAL_IO_COMBO_CARD ((u32)0x4)
-#define SDIO_HIGH_CAPACITY_SD_CARD ((u32)0x5)
-#define SDIO_HIGH_CAPACITY_MMC_CARD ((u32)0x6)
-
-#define SDIO_INIT_CLK_DIV ((u8)0xB2)
-#define SDIO_TRANSFER_CLK_DIV ((u8)0x1)
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-static u32 CardType = SDIO_SECURE_DIGITAL_CARD;
-static u32 CSD_Tab[4], CID_Tab[4], RCA = 0;
-static u32 DeviceMode = SD_POLLING_MODE;
-static u32 TotalNumberOfBytes = 0, StopCondition = 0;
-u32 *SrcBuffer, *DestBuffer;
-volatile SD_Error TransferError = SD_OK;
-vu32 TransferEnd = 0;
-vu32 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(u8 cmd);
-static SD_Error CmdResp7Error(void);
-static SD_Error CmdResp3Error(void);
-static SD_Error CmdResp2Error(void);
-static SD_Error CmdResp6Error(u8 cmd, u16 *prca);
-static SD_Error SDEnWideBus(FunctionalState NewState);
-static SD_Error IsCardProgramming(u8 *pstatus);
-static SD_Error FindSCR(u16 rca, u32 *pscr);
-static u8 convert_from_bytes_to_power_of_two(u16 NumberOfBytes);
-static void GPIO_Configuration(void);
-static void DMA_TxConfiguration(u32 *BufferSRC, u32 BufferSize);
-static void DMA_RxConfiguration(u32 *BufferDST, u32 BufferSize);
-
-/* Private functions ---------------------------------------------------------*/
-
-/*******************************************************************************
-* Function Name : SD_Init
-* Description : Initializes the SD Card and put it into StandBy State (Ready
-* for data transfer).
-* Input : None
-* Output : None
-* Return : 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);
-}
-
-/*******************************************************************************
-* Function Name : SD_PowerON
-* Description : Enquires cards about their operating voltage and configures
-* clock controls.
-* Input : None
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_PowerON(void)
-{
- SD_Error errorstatus = SD_OK;
- u32 response = 0, count = 0;
- bool validvoltage = FALSE;
- u32 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)
- {
- SDType = SD_HIGH_CAPACITY; /* SD Card 2.0 */
- }
- 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 (SDType == SD_HIGH_CAPACITY)
- {
- CardType = SDIO_HIGH_CAPACITY_SD_CARD;
- }
- else
- {
- CardType = SDIO_SECURE_DIGITAL_CARD;
- }
- }/* else MMC Card */
-
- return(errorstatus);
-}
-
-/*******************************************************************************
-* Function Name : SD_PowerOFF
-* Description : Turns the SDIO output signals off.
-* Input : None
-* Output : None
-* Return : 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);
-}
-
-/*******************************************************************************
-* Function Name : SD_InitializeCards
-* Description : Intialises all cards or single card as the case may be.
-* Card(s) come into standby state.
-* Input : None
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_InitializeCards(void)
-{
- SD_Error errorstatus = SD_OK;
- u16 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_SECURE_DIGITAL_CARD == CardType) || (SDIO_SECURE_DIGITAL_IO_CARD == 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_SECURE_DIGITAL_IO_CARD != CardType)
- {
- RCA = rca;
-
- /* Send CMD9 SEND_CSD with argument as card's RCA */
- SDIO_CmdInitStructure.SDIO_Argument = (u32)(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);
-}
-
-/*******************************************************************************
-* Function Name : SD_GetCardInfo
-* Description : Returns information about specific card.
-* Input : cardinfo : pointer to a SD_CardInfo structure
-* that contains all SD card information.
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_GetCardInfo(SD_CardInfo *cardinfo)
-{
- SD_Error errorstatus = SD_OK;
- u8 tmp = 0;
-
- cardinfo->CardType = (u8)CardType;
- cardinfo->RCA = (u16)RCA;
-
- /* Byte 0 */
- tmp = (u8)((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 = (u8)((CSD_Tab[0] & 0x00FF0000) >> 16);
- cardinfo->SD_csd.TAAC = tmp;
-
- /* Byte 2 */
- tmp = (u8)((CSD_Tab[0] & 0x0000FF00) >> 8);
- cardinfo->SD_csd.NSAC = tmp;
-
- /* Byte 3 */
- tmp = (u8)(CSD_Tab[0] & 0x000000FF);
- cardinfo->SD_csd.MaxBusClkFrec = tmp;
-
- /* Byte 4 */
- tmp = (u8)((CSD_Tab[1] & 0xFF000000) >> 24);
- cardinfo->SD_csd.CardComdClasses = tmp << 4;
-
- /* Byte 5 */
- tmp = (u8)((CSD_Tab[1] & 0x00FF0000) >> 16);
- cardinfo->SD_csd.CardComdClasses |= (tmp & 0xF0) >> 4;
- cardinfo->SD_csd.RdBlockLen = tmp & 0x0F;
-
- /* Byte 6 */
- tmp = (u8)((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 */
- cardinfo->SD_csd.DeviceSize = (tmp & 0x03) << 10;
-
- /* Byte 7 */
- tmp = (u8)(CSD_Tab[1] & 0x000000FF);
- cardinfo->SD_csd.DeviceSize |= (tmp) << 2;
-
- /* Byte 8 */
- tmp = (u8)((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 = (u8)((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 = (u8)((CSD_Tab[2] & 0x0000FF00) >> 8);
- cardinfo->SD_csd.DeviceSizeMul |= (tmp & 0x80) >> 7;
- cardinfo->SD_csd.EraseGrSize = (tmp & 0x40) >> 6;
- cardinfo->SD_csd.EraseGrMul = (tmp & 0x3F) << 1;
-
- /* Byte 11 */
- tmp = (u8)(CSD_Tab[2] & 0x000000FF);
- cardinfo->SD_csd.EraseGrMul |= (tmp & 0x80) >> 7;
- cardinfo->SD_csd.WrProtectGrSize = (tmp & 0x7F);
-
- /* Byte 12 */
- tmp = (u8)((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 = (u8)((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 = (u8)((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 = (u8)(CSD_Tab[3] & 0x000000FF);
- cardinfo->SD_csd.CSD_CRC = (tmp & 0xFE) >> 1;
- cardinfo->SD_csd.Reserved4 = 1;
-
-
- /* Byte 0 */
- tmp = (u8)((CID_Tab[0] & 0xFF000000) >> 24);
- cardinfo->SD_cid.ManufacturerID = tmp;
-
- /* Byte 1 */
- tmp = (u8)((CID_Tab[0] & 0x00FF0000) >> 16);
- cardinfo->SD_cid.OEM_AppliID = tmp << 8;
-
- /* Byte 2 */
- tmp = (u8)((CID_Tab[0] & 0x000000FF00) >> 8);
- cardinfo->SD_cid.OEM_AppliID |= tmp;
-
- /* Byte 3 */
- tmp = (u8)(CID_Tab[0] & 0x000000FF);
- cardinfo->SD_cid.ProdName1 = tmp << 24;
-
- /* Byte 4 */
- tmp = (u8)((CID_Tab[1] & 0xFF000000) >> 24);
- cardinfo->SD_cid.ProdName1 |= tmp << 16;
-
- /* Byte 5 */
- tmp = (u8)((CID_Tab[1] & 0x00FF0000) >> 16);
- cardinfo->SD_cid.ProdName1 |= tmp << 8;
-
- /* Byte 6 */
- tmp = (u8)((CID_Tab[1] & 0x0000FF00) >> 8);
- cardinfo->SD_cid.ProdName1 |= tmp;
-
- /* Byte 7 */
- tmp = (u8)(CID_Tab[1] & 0x000000FF);
- cardinfo->SD_cid.ProdName2 = tmp;
-
- /* Byte 8 */
- tmp = (u8)((CID_Tab[2] & 0xFF000000) >> 24);
- cardinfo->SD_cid.ProdRev = tmp;
-
- /* Byte 9 */
- tmp = (u8)((CID_Tab[2] & 0x00FF0000) >> 16);
- cardinfo->SD_cid.ProdSN = tmp << 24;
-
- /* Byte 10 */
- tmp = (u8)((CID_Tab[2] & 0x0000FF00) >> 8);
- cardinfo->SD_cid.ProdSN |= tmp << 16;
-
- /* Byte 11 */
- tmp = (u8)(CID_Tab[2] & 0x000000FF);
- cardinfo->SD_cid.ProdSN |= tmp << 8;
-
- /* Byte 12 */
- tmp = (u8)((CID_Tab[3] & 0xFF000000) >> 24);
- cardinfo->SD_cid.ProdSN |= tmp;
-
- /* Byte 13 */
- tmp = (u8)((CID_Tab[3] & 0x00FF0000) >> 16);
- cardinfo->SD_cid.Reserved1 |= (tmp & 0xF0) >> 4;
- cardinfo->SD_cid.ManufactDate = (tmp & 0x0F) << 8;
-
- /* Byte 14 */
- tmp = (u8)((CID_Tab[3] & 0x0000FF00) >> 8);
- cardinfo->SD_cid.ManufactDate |= tmp;
-
- /* Byte 15 */
- tmp = (u8)(CID_Tab[3] & 0x000000FF);
- cardinfo->SD_cid.CID_CRC = (tmp & 0xFE) >> 1;
- cardinfo->SD_cid.Reserved2 = 1;
-
- return(errorstatus);
-}
-
-/*******************************************************************************
-* Function Name : SD_EnableWideBusOperation
-* Description : Enables wide bus opeartion for the requeseted card if
-* supported by card.
-* Input : WideMode: Specifies the SD card wide bus mode.
-* This parameter can be one of the following values:
-* - SDIO_BusWide_8b: 8-bit data transfer (Only for MMC)
-* - SDIO_BusWide_4b: 4-bit data transfer
-* - SDIO_BusWide_1b: 1-bit data transfer
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_EnableWideBusOperation(u32 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_SECURE_DIGITAL_CARD == 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);
-}
-
-/*******************************************************************************
-* Function Name : SD_SetDeviceMode
-* Description : Sets device mode whether to operate in Polling, Interrupt or
-* DMA mode.
-* Input : Mode: Specifies the Data Transfer mode.
-* This parameter can be one of the following values:
-* - SD_DMA_MODE: Data transfer using DMA.
-* - SD_INTERRUPT_MODE: Data transfer using interrupts.
-* - SD_POLLING_MODE: Data transfer using flags.
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_SetDeviceMode(u32 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);
-
-}
-
-/*******************************************************************************
-* Function Name : SD_SelectDeselect
-* Description : Selects od Deselects the corresponding card.
-* Input : addr: Address of the Card to be selected.
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_SelectDeselect(u32 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);
-}
-
-/*******************************************************************************
-* Function Name : SD_ReadBlock
-* Description : Allows to read one block from a specified address in a card.
-* Input : - addr: Address from where data are to be read.
-* - readbuff: pointer to the buffer that will contain the
-* received data
-* - blocksize: the SD card Data block size.
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_ReadBlock(u32 addr, u32 *readbuff, u16 BlockSize)
-{
- SD_Error errorstatus = SD_OK;
- u32 count = 0, *tempbuff = readbuff;
- u8 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 ((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 = (u32) 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 = (u32) 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 = (u32)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)
- {
- 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)
- {}
- }
- return(errorstatus);
-}
-
-/*******************************************************************************
-* Function Name : SD_ReadMultiBlocks
-* Description : Allows to read blocks from a specified address in a card.
-* Input : - addr: Address from where data are to be read.
-* - readbuff: pointer to the buffer that will contain the
-* received data.
-* - BlockSize: the SD card Data block size.
-* - NumberOfBlocks: number of blocks to be read.
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_ReadMultiBlocks(u32 addr, u32 *readbuff, u16 BlockSize, u32 NumberOfBlocks)
-{
- SD_Error errorstatus = SD_OK;
- u32 count = 0, *tempbuff = readbuff;
- u8 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 ((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 = (u32) 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 = (u32) 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 = (u32)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_SECURE_DIGITAL_CARD == 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);
- }
- }
- }
- /* 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);
-}
-
-/*******************************************************************************
-* Function Name : SD_WriteBlock
-* Description : Allows to write one block starting from a specified address
-* in a card.
-* Input : - addr: Address from where data are to be read.
-* - writebuff: pointer to the buffer that contain the data to be
-* transferred.
-* - BlockSize: the SD card Data block size.
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_WriteBlock(u32 addr, u32 *writebuff, u16 BlockSize)
-{
- SD_Error errorstatus = SD_OK;
- u8 power = 0, cardstate = 0;
- u32 timeout = 0, bytestransferred = 0;
- u32 cardstatus = 0, count = 0, restwords = 0;
- u32 *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);
- }
-
- /* 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 = (u32) 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 = (u32) (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 = (u32) (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 = (u32) 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);
-}
-
-/*******************************************************************************
-* Function Name : SD_WriteMultiBlocks
-* Description : Allows to write blocks starting from a specified address in
-* a card.
-* Input : - addr: Address from where data are to be read.
-* - writebuff: pointer to the buffer that contain the data to be
-* transferred.
-* - BlockSize: the SD card Data block size.
-* - NumberOfBlocks: number of blocks to be written.
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_WriteMultiBlocks(u32 addr, u32 *writebuff, u16 BlockSize, u32 NumberOfBlocks)
-{
- SD_Error errorstatus = SD_OK;
- u8 power = 0, cardstate = 0;
- u32 bytestransferred = 0;
- u32 count = 0, restwords = 0;
- u32 *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);
- }
-
- /* 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 = (u32) 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 = (u32) (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_SECURE_DIGITAL_CARD == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType))
- {
- /* To improve performance */
- SDIO_CmdInitStructure.SDIO_Argument = (u32) (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 = (u32)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 = (u32)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 = (u32) 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_SECURE_DIGITAL_CARD == 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);
-}
-
-/*******************************************************************************
-* Function Name : SD_GetTransferState
-* Description : Gets the cuurent data transfer state.
-* Input : None
-* Output : None
-* Return : 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);
- }
-}
-
-/*******************************************************************************
-* Function Name : SD_StopTransfer
-* Description : Aborts an ongoing data transfer.
-* Input : None
-* Output : None
-* Return : 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);
-}
-
-/*******************************************************************************
-* Function Name : SD_Erase
-* Description : Allows to erase memory area specified for the given card.
-* Input : - startaddr: the start address.
-* - endaddr: the end address.
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_Erase(u32 startaddr, u32 endaddr)
-{
- SD_Error errorstatus = SD_OK;
- u32 delay = 0;
- vu32 maxdelay = 0;
- u8 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);
- }
-
- /* According to sd-card spec 1.0 ERASE_GROUP_START (CMD32) and erase_group_end(CMD33) */
- if ((SDIO_SECURE_DIGITAL_CARD == 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);
-}
-
-/*******************************************************************************
-* Function Name : SD_SendStatus
-* Description : Returns the current card's status.
-* Input : pcardstatus: pointer to the buffer that will contain the SD
-* card status (Card Status register).
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_SendStatus(u32 *pcardstatus)
-{
- SD_Error errorstatus = SD_OK;
-
- if (pcardstatus == NULL)
- {
- errorstatus = SD_INVALID_PARAMETER;
- return(errorstatus);
- }
-
- SDIO_CmdInitStructure.SDIO_Argument = (u32) 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);
-}
-
-/*******************************************************************************
-* Function Name : SD_SendSDStatus
-* Description : Returns the current SD card's status.
-* Input : psdstatus: pointer to the buffer that will contain the SD
-* card status (SD Status register).
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_SendSDStatus(u32 *psdstatus)
-{
- SD_Error errorstatus = SD_OK;
- u32 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 = (u32) 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);
-}
-
-/*******************************************************************************
-* Function Name : SD_ProcessIRQSrc
-* Description : Allows to process all the interrupts that are high.
-* Input : None
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-SD_Error SD_ProcessIRQSrc(void)
-{
- u32 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);
-}
-
-/*******************************************************************************
-* Function Name : CmdError
-* Description : Checks for error conditions for CMD0.
-* Input : None
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-static SD_Error CmdError(void)
-{
- SD_Error errorstatus = SD_OK;
- u32 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);
-}
-
-/*******************************************************************************
-* Function Name : CmdResp7Error
-* Description : Checks for error conditions for R7.
-* response.
-* Input : None
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-static SD_Error CmdResp7Error(void)
-{
- SD_Error errorstatus = SD_OK;
- u32 status;
- u32 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;
- return(errorstatus);
- }
- return(errorstatus);
-}
-
-/*******************************************************************************
-* Function Name : CmdResp1Error
-* Description : Checks for error conditions for R1.
-* response
-* Input : cmd: The sent command index.
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-static SD_Error CmdResp1Error(u8 cmd)
-{
- SD_Error errorstatus = SD_OK;
- u32 status;
- u32 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);
-}
-
-/*******************************************************************************
-* Function Name : CmdResp3Error
-* Description : Checks for error conditions for R3 (OCR).
-* response.
-* Input : None
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-static SD_Error CmdResp3Error(void)
-{
- SD_Error errorstatus = SD_OK;
- u32 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);
-}
-
-/*******************************************************************************
-* Function Name : CmdResp2Error
-* Description : Checks for error conditions for R2 (CID or CSD).
-* response.
-* Input : None
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-static SD_Error CmdResp2Error(void)
-{
- SD_Error errorstatus = SD_OK;
- u32 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);
-}
-
-/*******************************************************************************
-* Function Name : CmdResp6Error
-* Description : Checks for error conditions for R6 (RCA).
-* response.
-* Input : - cmd: The sent command index.
-* - prca: pointer to the variable that will contain the SD
-* card relative address RCA.
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-static SD_Error CmdResp6Error(u8 cmd, u16 *prca)
-{
- SD_Error errorstatus = SD_OK;
- u32 status;
- u32 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 = (u16) (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);
-}
-
-/*******************************************************************************
-* Function Name : SDEnWideBus
-* Description : Enables or disables the SDIO wide bus mode.
-* Input : NewState: new state of the SDIO wide bus mode.
-* This parameter can be: ENABLE or DISABLE.
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-static SD_Error SDEnWideBus(FunctionalState NewState)
-{
- SD_Error errorstatus = SD_OK;
-
- u32 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 = (u32) 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 = (u32) 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);
- }
- }
-}
-
-/*******************************************************************************
-* Function Name : IsCardProgramming
-* Description : Checks if the SD card is in programming state.
-* Input : pstatus: pointer to the variable that will contain the SD
-* card state.
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-static SD_Error IsCardProgramming(u8 *pstatus)
-{
- SD_Error errorstatus = SD_OK;
- vu32 respR1 = 0, status = 0;
-
- SDIO_CmdInitStructure.SDIO_Argument = (u32) 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 = (u32)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 = (u8) ((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);
-}
-
-/*******************************************************************************
-* Function Name : FindSCR
-* Description : Find the SD card SCR register value.
-* Input : - rca: selected card address.
-* - pscr: pointer to the buffer that will contain the SCR value.
-* Output : None
-* Return : SD_Error: SD Card Error code.
-*******************************************************************************/
-static SD_Error FindSCR(u16 rca, u32 *pscr)
-{
- u32 index = 0;
- SD_Error errorstatus = SD_OK;
- u32 tempscr[2] = {0, 0};
-
- /* Set Block Size To 8 Bytes */
- /* Send CMD55 APP_CMD with argument as card's RCA */
- SDIO_CmdInitStructure.SDIO_Argument = (u32)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 = (u32) 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);
-}
-
-/*******************************************************************************
-* Function Name : convert_from_bytes_to_power_of_two
-* Description : Converts the number of bytes in power of two and returns the
-* power.
-* Input : NumberOfBytes: number of bytes.
-* Output : None
-* Return : None
-*******************************************************************************/
-static u8 convert_from_bytes_to_power_of_two(u16 NumberOfBytes)
-{
- u8 count = 0;
-
- while (NumberOfBytes != 1)
- {
- NumberOfBytes >>= 1;
- count++;
- }
- return(count);
-}
-
-/*******************************************************************************
-* Function Name : GPIO_Configuration
-* Description : Configures the SDIO Corresponding GPIO Ports
-* Input : None
-* Output : None
-* Return : 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);
-}
-
-/*******************************************************************************
-* Function Name : DMA_TxConfiguration
-* Description : Configures the DMA2 Channel4 for SDIO Tx request.
-* Input : - BufferSRC: pointer to the source buffer
-* - BufferSize: buffer size
-* Output : None
-* Return : None
-*******************************************************************************/
-static void DMA_TxConfiguration(u32 *BufferSRC, u32 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 = (u32)SDIO_FIFO_Address;
- DMA_InitStructure.DMA_MemoryBaseAddr = (u32)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);
-}
-
-/*******************************************************************************
-* Function Name : DMA_RxConfiguration
-* Description : Configures the DMA2 Channel4 for SDIO Rx request.
-* Input : - BufferDST: pointer to the destination buffer
-* - BufferSize: buffer size
-* Output : None
-* Return : None
-*******************************************************************************/
-static void DMA_RxConfiguration(u32 *BufferDST, u32 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 = (u32)SDIO_FIFO_Address;
- DMA_InitStructure.DMA_MemoryBaseAddr = (u32)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 2008 STMicroelectronics *****END OF FILE****/
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