From 597015a3fefc678390369d2b668ac4918799c5ab Mon Sep 17 00:00:00 2001 From: wuyangyong Date: Sun, 18 Oct 2009 12:32:10 +0000 Subject: [PATCH] fix sdcard.c dfs_fs.c git-svn-id: https://rt-thread.googlecode.com/svn/trunk@106 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- bsp/stm32_radio/sdcard.c | 6321 ++++++++++++++++++----------------- filesystem/dfs/src/dfs_fs.c | 509 +-- 2 files changed, 3424 insertions(+), 3406 deletions(-) diff --git a/bsp/stm32_radio/sdcard.c b/bsp/stm32_radio/sdcard.c index 6a57eeec5a..7d1e741ad4 100644 --- a/bsp/stm32_radio/sdcard.c +++ b/bsp/stm32_radio/sdcard.c @@ -1,3160 +1,3161 @@ -/******************** (C) COPYRIGHT 2008 STMicroelectronics ******************** -* File Name : sdcard.c -* Author : MCD Application Team -* Version : V2.0.3 -* Date : 09/22/2008 -* 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_VOLTAGE_WINDOW_MMC ((u32)0x80FF8000) - -#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_INIT_CLK_DIV ((u8)0xB2) -#define SDIO_TRANSFER_CLK_DIV ((u8)0x1) - -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -static u32 CardType = SDIO_STD_CAPACITY_SD_CARD_V1_1; -static u32 CSD_Tab[4], CID_Tab[4], RCA = 0; -static u32 DeviceMode = SD_DMA_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) - { - 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); -} - -/******************************************************************************* -* 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; - // u32 count = 0; - - 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 = (u32)(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 = (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 */ - - 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 = (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->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 = (u8)(CSD_Tab[1] & 0x000000FF); - cardinfo->SD_csd.DeviceSize = (tmp & 0x3F) << 16; - - /* Byte 8 */ - tmp = (u8)((CSD_Tab[2] & 0xFF000000) >> 24); - - cardinfo->SD_csd.DeviceSize |= (tmp << 8); - - /* Byte 9 */ - tmp = (u8)((CSD_Tab[2] & 0x00FF0000) >> 16); - - cardinfo->SD_csd.DeviceSize |= (tmp); - - /* Byte 10 */ - tmp = (u8)((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 = (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_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); -} - -/******************************************************************************* -* 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 (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 = (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 (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 = (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_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); -} - -/******************************************************************************* -* 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); - } - - 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 = (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); - } - - 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 = (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_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 = (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_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); -} - -/******************************************************************************* -* 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); - } - - 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); -} - -/******************************************************************************* -* 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; - SDIO_ClearFlag(SDIO_FLAG_CMDREND); - 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****/ - -/* - * RT-Thread SD Card Driver - * 20090417 Bernard - */ -#include -#include - -struct rt_device sdcard_device; -SD_CardInfo SDCardInfo; -struct dfs_partition part; - -/* 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); - - 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; - - // rt_kprintf("read: 0x%x, size %d\n", pos, size); - - /* read all sectors */ - for (i = 0; i < size / SECTOR_SIZE; i ++) - { - status = SD_ReadBlock((part.offset + i)* SECTOR_SIZE + pos, - (rt_uint32_t*)((rt_uint8_t*)buffer + i * SECTOR_SIZE), - SECTOR_SIZE); - if (status != SD_OK) - { - rt_kprintf("sd card read failed\n"); - return 0; - } - } - - if (status == SD_OK) return size; - - rt_kprintf("read failed: %d\n", status); - 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); - - /* read all sectors */ - for (i = 0; i < size / SECTOR_SIZE; i ++) - { - status = SD_WriteBlock((part.offset + i)* SECTOR_SIZE + pos, - (rt_uint32_t*)((rt_uint8_t*)buffer + i * SECTOR_SIZE), - SECTOR_SIZE); - if (status != SD_OK) - { - rt_kprintf("sd card write failed\n"); - return 0; - } - } - - if (status == SD_OK) return size; - - rt_kprintf("write failed: %d\n", status); - 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_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_4b); - 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, (rt_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"); -} +/******************** (C) COPYRIGHT 2008 STMicroelectronics ******************** +* File Name : sdcard.c +* Author : MCD Application Team +* Version : V2.0.3 +* Date : 09/22/2008 +* 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_VOLTAGE_WINDOW_MMC ((u32)0x80FF8000) + +#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_INIT_CLK_DIV ((u8)0xB2) +#define SDIO_TRANSFER_CLK_DIV ((u8)0x1) + +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +static u32 CardType = SDIO_STD_CAPACITY_SD_CARD_V1_1; +static u32 CSD_Tab[4], CID_Tab[4], RCA = 0; +static u32 DeviceMode = SD_DMA_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) + { + 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); +} + +/******************************************************************************* +* 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; + // u32 count = 0; + + 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 = (u32)(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 = (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 */ + + 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 = (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->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 = (u8)(CSD_Tab[1] & 0x000000FF); + cardinfo->SD_csd.DeviceSize = (tmp & 0x3F) << 16; + + /* Byte 8 */ + tmp = (u8)((CSD_Tab[2] & 0xFF000000) >> 24); + + cardinfo->SD_csd.DeviceSize |= (tmp << 8); + + /* Byte 9 */ + tmp = (u8)((CSD_Tab[2] & 0x00FF0000) >> 16); + + cardinfo->SD_csd.DeviceSize |= (tmp); + + /* Byte 10 */ + tmp = (u8)((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 = (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_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); +} + +/******************************************************************************* +* 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 (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 = (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 (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 = (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_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); +} + +/******************************************************************************* +* 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); + } + + 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 = (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); + } + + 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 = (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_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 = (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_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); +} + +/******************************************************************************* +* 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); + } + + 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); +} + +/******************************************************************************* +* 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; + SDIO_ClearFlag(SDIO_FLAG_CMDREND); + 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****/ + +/* + * RT-Thread SD Card Driver + * 20090417 Bernard + */ +#include +#include + +struct rt_device sdcard_device; +SD_CardInfo SDCardInfo; +struct dfs_partition part; + +/* 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); + + 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; + + // rt_kprintf("read: 0x%x, size %d\n", pos, size); + + /* read all sectors */ + for (i = 0; i < size / SECTOR_SIZE; i ++) + { + status = SD_ReadBlock((part.offset + i)* SECTOR_SIZE + pos, + (rt_uint32_t*)((rt_uint8_t*)buffer + i * SECTOR_SIZE), + SECTOR_SIZE); + if (status != SD_OK) + { + rt_kprintf("sd card read failed\n"); + return 0; + } + } + + if (status == SD_OK) return size; + + rt_kprintf("read failed: %d\n", status); + 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); + + /* read all sectors */ + for (i = 0; i < size / SECTOR_SIZE; i ++) + { + status = SD_WriteBlock((part.offset + i)* SECTOR_SIZE + pos, + (rt_uint32_t*)((rt_uint8_t*)buffer + i * SECTOR_SIZE), + SECTOR_SIZE); + if (status != SD_OK) + { + rt_kprintf("sd card write failed\n"); + return 0; + } + } + + if (status == SD_OK) return size; + + rt_kprintf("write failed: %d\n", status); + 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_4b); + + 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, (rt_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"); +} diff --git a/filesystem/dfs/src/dfs_fs.c b/filesystem/dfs/src/dfs_fs.c index f0ca291c24..4b899dd423 100644 --- a/filesystem/dfs/src/dfs_fs.c +++ b/filesystem/dfs/src/dfs_fs.c @@ -9,7 +9,7 @@ |------------------------------------------------------------------------------ | Chang Logs: | Date Author Notes -| 2005-02-22 ffxz The first version. +| 2005-02-22 ffxz The first version. +------------------------------------------------------------------------------ */ #include @@ -32,34 +32,34 @@ */ int dfs_register(struct dfs_filesystem_operation* ops) { - int index; + int index; - rt_sem_take(filesystem_operation_table_lock, RT_WAITING_FOREVER); + rt_sem_take(filesystem_operation_table_lock, RT_WAITING_FOREVER); - /* check if this filesystem was already registered */ - for (index = 0; index < DFS_FILESYSTEM_TYPES_MAX; index++) - { - if (filesystem_operation_table[index] != RT_NULL && - strcmp(filesystem_operation_table[index]->name, ops->name) == 0) - goto err; - } + /* check if this filesystem was already registered */ + for (index = 0; index < DFS_FILESYSTEM_TYPES_MAX; index++) + { + if (filesystem_operation_table[index] != RT_NULL && + strcmp(filesystem_operation_table[index]->name, ops->name) == 0) + goto err; + } - /* find out an empty filesystem type entry */ - for (index = 0; index < DFS_FILESYSTEM_TYPES_MAX && filesystem_operation_table[index] != RT_NULL; - index++) ; - - /* filesystem type table full */ - if (index == DFS_FILESYSTEM_TYPES_MAX) goto err; + /* find out an empty filesystem type entry */ + for (index = 0; index < DFS_FILESYSTEM_TYPES_MAX && filesystem_operation_table[index] != RT_NULL; + index++) ; - /* save the filesystem's operations */ - filesystem_operation_table[index] = ops; + /* filesystem type table full */ + if (index == DFS_FILESYSTEM_TYPES_MAX) goto err; - rt_sem_release(filesystem_operation_table_lock); - return 0; + /* save the filesystem's operations */ + filesystem_operation_table[index] = ops; + + rt_sem_release(filesystem_operation_table_lock); + return 0; err: - rt_sem_release(filesystem_operation_table_lock); - return -1; + rt_sem_release(filesystem_operation_table_lock); + return -1; } /* @@ -74,31 +74,31 @@ err: */ struct dfs_filesystem* dfs_filesystem_lookup(const char *path) { - struct dfs_filesystem* fs; - rt_uint32_t index, fspath, prefixlen; - - fs = RT_NULL; - prefixlen = 0; - - /* lock filesystem table */ - rt_sem_take(filesystem_table_lock, RT_WAITING_FOREVER); - - /* lookup it in the filesystem table */ - for (index = 0; index < DFS_FILESYSTEMS_MAX + 1; index++) - { - fspath = strlen(filesystem_table[index].path); - if (fspath < prefixlen) continue; - - if ((filesystem_table[index].ops != RT_NULL) && - str_is_prefix(filesystem_table[index].path, path) == 0) - { - fs = &filesystem_table[index]; - prefixlen = fspath; - } - } - - rt_sem_release(filesystem_table_lock); - return fs; + struct dfs_filesystem* fs; + rt_uint32_t index, fspath, prefixlen; + + fs = RT_NULL; + prefixlen = 0; + + /* lock filesystem table */ + rt_sem_take(filesystem_table_lock, RT_WAITING_FOREVER); + + /* lookup it in the filesystem table */ + for (index = 0; index < DFS_FILESYSTEMS_MAX + 1; index++) + { + fspath = strlen(filesystem_table[index].path); + if (fspath < prefixlen) continue; + + if ((filesystem_table[index].ops != RT_NULL) && + str_is_prefix(filesystem_table[index].path, path) == 0) + { + fs = &filesystem_table[index]; + prefixlen = fspath; + } + } + + rt_sem_release(filesystem_table_lock); + return fs; } rt_err_t dfs_filesystem_get_partition(struct dfs_partition* part, rt_uint8_t* buf, rt_uint32_t pindex) @@ -106,49 +106,66 @@ rt_err_t dfs_filesystem_get_partition(struct dfs_partition* part, rt_uint8_t* bu #define DPT_ADDRESS 0x1be /* device partition offset in Boot Sector */ #define DPT_ITEM_SIZE 16 /* partition item size */ - rt_uint8_t* dpt; - rt_uint8_t type; - rt_err_t result; - - RT_ASSERT(part != RT_NULL); - RT_ASSERT(buf != RT_NULL); - - result = RT_EOK; - - dpt = buf + DPT_ADDRESS + pindex * DPT_ITEM_SIZE; - - if ((*dpt != 0x80) && (*dpt != 0x00)) - { - /* which is not a partition table */ - result = -RT_ERROR; - return result; - } - - /* get partition type */ - type = *(dpt+4); - - if (type != 0) - { - /* set partition type */ - part->type = type; - - /* get partition offset and size */ - part->offset = *(dpt+ 8) | *(dpt+ 9) << 8 | - *(dpt+10) << 16 | *(dpt+11) << 24; - part->size = *(dpt+12) | *(dpt+13) << 8 | - *(dpt+14) << 16 | *(dpt+15) << 24; + rt_uint8_t* dpt; + rt_uint8_t type; + rt_err_t result; + + RT_ASSERT(part != RT_NULL); + RT_ASSERT(buf != RT_NULL); + + result = RT_EOK; + + dpt = buf + DPT_ADDRESS + pindex * DPT_ITEM_SIZE; + + if ((*dpt != 0x80) && (*dpt != 0x00)) + { + /* which is not a partition table */ + result = -RT_ERROR; + return result; + } + + /* get partition type */ + type = *(dpt+4); + + if (type != 0) + { + /* set partition type */ + part->type = type; + + /* get partition offset and size */ + part->offset = *(dpt+ 8) | *(dpt+ 9) << 8 | + *(dpt+10) << 16 | *(dpt+11) << 24; + part->size = *(dpt+12) | *(dpt+13) << 8 | + *(dpt+14) << 16 | *(dpt+15) << 24; #ifdef RT_USING_FINSH - rt_kprintf("part[%d], begin: %d, size: %d\n", - pindex, part->offset * 512, part->size* 512); + rt_kprintf("part[%d], begin: %d, size: ", + pindex, part->offset * 512); + if ( (part->size>>11) > 0 ) /* MB */ + { + unsigned int part_size; + part_size = part->size>>11;/* MB */ + if ( (part_size>>10) > 0) /* GB */ + { + rt_kprintf("%d.%d%s",part_size>>10,part_size&0x3FF,"GB\r\n");/* GB */ + } + else + { + rt_kprintf("%d.%d%s",part_size,(part->size>>1)&0x3FF,"MB\r\n");/* MB */ + } + } + else + { + rt_kprintf("%d%s",part->size>>1,"KB\r\n");/* KB */ + } #endif - } - else - { - result = -RT_ERROR; - } + } + else + { + result = -RT_ERROR; + } - return result; + return result; } /* @@ -158,7 +175,7 @@ rt_err_t dfs_filesystem_get_partition(struct dfs_partition* part, rt_uint8_t* bu | Description : mount a filesystem to specified path | | Parameters : device_name, the implementation of filesystem -| path, +| path, | filesystemtype, | rwflag, | data, @@ -168,138 +185,138 @@ rt_err_t dfs_filesystem_get_partition(struct dfs_partition* part, rt_uint8_t* bu +------------------------------------------------------------------------------ */ int dfs_mount(const char* device_name, const char* path, - const char* filesystemtype, unsigned long rwflag, const - void* data) + const char* filesystemtype, unsigned long rwflag, const + void* data) { - struct dfs_filesystem_operation* ops; - struct dfs_filesystem* fs; - char *fullpath=RT_NULL; -#ifdef RT_USING_WORKDIR - char full_path[DFS_PATH_MAX + 1]; + struct dfs_filesystem_operation* ops; + struct dfs_filesystem* fs; + char *fullpath=RT_NULL; +#ifdef RT_USING_WORKDIR + char full_path[DFS_PATH_MAX + 1]; #endif - rt_device_t dev_id; - int index; - - /* open specific device */ - dev_id = rt_device_find(device_name); - if (dev_id == RT_NULL) - { - /* no this device */ - rt_set_errno(-DFS_STATUS_ENODEV); - return -1; - } - - /* find out specific filesystem */ - rt_sem_take(filesystem_operation_table_lock, RT_WAITING_FOREVER); - for ( index = 0; index < DFS_FILESYSTEM_TYPES_MAX; index++ ) - { - if (strcmp(filesystem_operation_table[index]->name, filesystemtype) == 0)break; - } - - /* can't find filesystem */ - if ( index == DFS_FILESYSTEM_TYPES_MAX ) - { - rt_set_errno(-DFS_STATUS_ENODEV); - rt_sem_release(filesystem_operation_table_lock); - return -1; - } - ops = filesystem_operation_table[index]; - rt_sem_release(filesystem_operation_table_lock); - - /* make full path for special file */ - fullpath = (char*)path; - if ( fullpath[0] != '/') /* not an abstract path */ - { -#ifdef RT_USING_WORKDIR - /* build full path */ - fullpath = full_path; - rt_sem_take(working_directory_lock, RT_WAITING_FOREVER); - build_fullpath(working_directory, path, fullpath); - rt_sem_release(working_directory_lock); + rt_device_t dev_id; + int index; + + /* open specific device */ + dev_id = rt_device_find(device_name); + if (dev_id == RT_NULL) + { + /* no this device */ + rt_set_errno(-DFS_STATUS_ENODEV); + return -1; + } + + /* find out specific filesystem */ + rt_sem_take(filesystem_operation_table_lock, RT_WAITING_FOREVER); + for ( index = 0; index < DFS_FILESYSTEM_TYPES_MAX; index++ ) + { + if (strcmp(filesystem_operation_table[index]->name, filesystemtype) == 0)break; + } + + /* can't find filesystem */ + if ( index == DFS_FILESYSTEM_TYPES_MAX ) + { + rt_set_errno(-DFS_STATUS_ENODEV); + rt_sem_release(filesystem_operation_table_lock); + return -1; + } + ops = filesystem_operation_table[index]; + rt_sem_release(filesystem_operation_table_lock); + + /* make full path for special file */ + fullpath = (char*)path; + if ( fullpath[0] != '/') /* not an abstract path */ + { +#ifdef RT_USING_WORKDIR + /* build full path */ + fullpath = full_path; + rt_sem_take(working_directory_lock, RT_WAITING_FOREVER); + build_fullpath(working_directory, path, fullpath); + rt_sem_release(working_directory_lock); #else - rt_set_errno(-DFS_STATUS_ENOTDIR); - return -1; + rt_set_errno(-DFS_STATUS_ENOTDIR); + return -1; #endif - } - - /* Check if the path exists or not, raw APIs call, fixme */ - if ( (strcmp(fullpath, "/") != 0) && (strcmp(fullpath, "/dev") != 0) ) - { - struct dfs_fd fd; - - if ( dfile_raw_open(&fd, fullpath, DFS_O_RDONLY | DFS_O_DIRECTORY) < 0 ) - { - rt_set_errno(-DFS_STATUS_ENOTDIR); - return -1; - } - dfile_raw_close(&fd); - } - - /* check whether the file system mounted or not */ - rt_sem_take(filesystem_table_lock, RT_WAITING_FOREVER); - for (index =0; index < DFS_FILESYSTEMS_MAX; index++) - { - if ( filesystem_table[index].ops != RT_NULL && - strcmp(filesystem_table[index].path, path) == 0 ) - { - rt_set_errno(-DFS_STATUS_EINVAL); - goto err1; - } - } - - /* find out en empty filesystem table entry */ - for (index = 0; index < DFS_FILESYSTEMS_MAX && filesystem_table[index].ops != RT_NULL; - index++) ; - if ( index == DFS_FILESYSTEMS_MAX ) /* can't find en empty filesystem table entry */ - { - rt_set_errno(-DFS_STATUS_EMMOUNT); - goto err1; - } - - /* register file system */ - fs = &(filesystem_table[index]); - strncpy(fs->path, fullpath, strlen(fullpath)); - fs->ops = ops; - fs->dev_id = dev_id; - /* release filesystem_table lock */ - rt_sem_release(filesystem_table_lock); - - /* open device, but do not check the status of device */ - rt_device_open(fs->dev_id, RT_DEVICE_OFLAG_RDWR); - - if ( ops->mount == RT_NULL ) /* there is no mount implementation */ - { - rt_sem_take(filesystem_table_lock, RT_WAITING_FOREVER); - - /* clear filesystem table entry */ - rt_memset(fs, 0, sizeof(struct dfs_filesystem)); - - rt_sem_release(filesystem_table_lock); - - rt_set_errno(-DFS_STATUS_ENOSYS); - return -1; - } - /* call mount of this filesystem */ - else if ( ops->mount(fs) < 0 ) - { - /* mount failed */ - rt_sem_take(filesystem_table_lock, RT_WAITING_FOREVER); - - /* close device */ - rt_device_close(fs->dev_id); - - /* clear filesystem table entry */ - rt_memset(fs, 0, sizeof(struct dfs_filesystem)); - - rt_sem_release(filesystem_table_lock); - return -1; - } - - return 0; + } + + /* Check if the path exists or not, raw APIs call, fixme */ + if ( (strcmp(fullpath, "/") != 0) && (strcmp(fullpath, "/dev") != 0) ) + { + struct dfs_fd fd; + + if ( dfile_raw_open(&fd, fullpath, DFS_O_RDONLY | DFS_O_DIRECTORY) < 0 ) + { + rt_set_errno(-DFS_STATUS_ENOTDIR); + return -1; + } + dfile_raw_close(&fd); + } + + /* check whether the file system mounted or not */ + rt_sem_take(filesystem_table_lock, RT_WAITING_FOREVER); + for (index =0; index < DFS_FILESYSTEMS_MAX; index++) + { + if ( filesystem_table[index].ops != RT_NULL && + strcmp(filesystem_table[index].path, path) == 0 ) + { + rt_set_errno(-DFS_STATUS_EINVAL); + goto err1; + } + } + + /* find out en empty filesystem table entry */ + for (index = 0; index < DFS_FILESYSTEMS_MAX && filesystem_table[index].ops != RT_NULL; + index++) ; + if ( index == DFS_FILESYSTEMS_MAX ) /* can't find en empty filesystem table entry */ + { + rt_set_errno(-DFS_STATUS_EMMOUNT); + goto err1; + } + + /* register file system */ + fs = &(filesystem_table[index]); + strncpy(fs->path, fullpath, strlen(fullpath)); + fs->ops = ops; + fs->dev_id = dev_id; + /* release filesystem_table lock */ + rt_sem_release(filesystem_table_lock); + + /* open device, but do not check the status of device */ + rt_device_open(fs->dev_id, RT_DEVICE_OFLAG_RDWR); + + if ( ops->mount == RT_NULL ) /* there is no mount implementation */ + { + rt_sem_take(filesystem_table_lock, RT_WAITING_FOREVER); + + /* clear filesystem table entry */ + rt_memset(fs, 0, sizeof(struct dfs_filesystem)); + + rt_sem_release(filesystem_table_lock); + + rt_set_errno(-DFS_STATUS_ENOSYS); + return -1; + } + /* call mount of this filesystem */ + else if ( ops->mount(fs) < 0 ) + { + /* mount failed */ + rt_sem_take(filesystem_table_lock, RT_WAITING_FOREVER); + + /* close device */ + rt_device_close(fs->dev_id); + + /* clear filesystem table entry */ + rt_memset(fs, 0, sizeof(struct dfs_filesystem)); + + rt_sem_release(filesystem_table_lock); + return -1; + } + + return 0; err1: - rt_sem_release(filesystem_table_lock); - return -1; + rt_sem_release(filesystem_table_lock); + return -1; } /* @@ -308,7 +325,7 @@ err1: +------------------------------------------------------------------------------ | Description : unmount a filesystem | -| Parameters : +| Parameters : | Returns : the status of register | 0 , successful | -1, failed @@ -316,47 +333,47 @@ err1: */ int dfs_unmount(const char *specialfile) { - char *fullpath; -#ifdef RT_USING_WORKDIR - char full_path[DFS_PATH_MAX + 1]; + char *fullpath; +#ifdef RT_USING_WORKDIR + char full_path[DFS_PATH_MAX + 1]; #endif - struct dfs_filesystem* fs = RT_NULL; - - fullpath = (char*)specialfile; - if ( fullpath[0] != '/') - { -#ifdef RT_USING_WORKDIR - /* build full path */ - fullpath = full_path; - rt_sem_take(working_directory_lock, RT_WAITING_FOREVER); - build_fullpath(working_directory, specialfile, fullpath); - rt_sem_release(working_directory_lock); + struct dfs_filesystem* fs = RT_NULL; + + fullpath = (char*)specialfile; + if ( fullpath[0] != '/') + { +#ifdef RT_USING_WORKDIR + /* build full path */ + fullpath = full_path; + rt_sem_take(working_directory_lock, RT_WAITING_FOREVER); + build_fullpath(working_directory, specialfile, fullpath); + rt_sem_release(working_directory_lock); #else - rt_set_errno(-DFS_STATUS_ENOTDIR); - return -1; + rt_set_errno(-DFS_STATUS_ENOTDIR); + return -1; #endif - } + } - /* lock filesystem table */ - rt_sem_take(filesystem_table_lock, RT_WAITING_FOREVER); + /* lock filesystem table */ + rt_sem_take(filesystem_table_lock, RT_WAITING_FOREVER); - fs = dfs_filesystem_lookup(fullpath); - if (fs != RT_NULL && fs->ops->unmount != RT_NULL && fs->ops->unmount(fs) < 0) - { - goto err1; - } + fs = dfs_filesystem_lookup(fullpath); + if (fs != RT_NULL && fs->ops->unmount != RT_NULL && fs->ops->unmount(fs) < 0) + { + goto err1; + } - /* close device, but do not check the status of device */ - rt_device_close(fs->dev_id); + /* close device, but do not check the status of device */ + rt_device_close(fs->dev_id); - /* clear this filesystem table entry */ - rt_memset(fs, 0, sizeof(struct dfs_filesystem)); + /* clear this filesystem table entry */ + rt_memset(fs, 0, sizeof(struct dfs_filesystem)); - rt_sem_release(filesystem_table_lock); + rt_sem_release(filesystem_table_lock); - return 0; + return 0; err1: - rt_sem_release(filesystem_table_lock); - return -1; + rt_sem_release(filesystem_table_lock); + return -1; } -- GitLab