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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file Demonstrations/Adafruit_LCD_1_8_SD_Joystick/Src/sd_diskio.c
* @author MCD Application Team
* @brief SD Disk I/O driver
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "ff_gen_drv.h"
#include "sd_diskio.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
#if defined(SDMMC_DATATIMEOUT)
#define SD_TIMEOUT SDMMC_DATATIMEOUT
#elif defined(SD_DATATIMEOUT)
#define SD_TIMEOUT SD_DATATIMEOUT
#else
#define SD_TIMEOUT 30 * 1000
#endif
#define SD_DEFAULT_BLOCK_SIZE 512
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
/* Disk status */
static volatile DSTATUS Stat = STA_NOINIT;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
static DSTATUS SD_CheckStatus(BYTE lun);
DSTATUS SD_initialize (BYTE);
DSTATUS SD_status (BYTE);
DRESULT SD_read (BYTE, BYTE*, DWORD, UINT);
#if _USE_WRITE == 1
DRESULT SD_write (BYTE, const BYTE*, DWORD, UINT);
#endif /* _USE_WRITE == 1 */
#if _USE_IOCTL == 1
DRESULT SD_ioctl (BYTE, BYTE, void*);
#endif /* _USE_IOCTL == 1 */
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
const Diskio_drvTypeDef SD_Driver =
{
SD_initialize,
SD_status,
SD_read,
#if _USE_WRITE == 1
SD_write,
#endif /* _USE_WRITE == 1 */
#if _USE_IOCTL == 1
SD_ioctl,
#endif /* _USE_IOCTL == 1 */
};
/* Private functions ---------------------------------------------------------*/
static DSTATUS SD_CheckStatus(BYTE lun)
{
Stat = STA_NOINIT;
if(BSP_SD_GetCardState() == BSP_SD_OK)
{
Stat &= ~STA_NOINIT;
}
return Stat;
}
/**
* @brief Initializes a Drive
* @param lun : not used
* @retval DSTATUS: Operation status
*/
DSTATUS SD_initialize(BYTE lun)
{
/* USER CODE BEGIN SDinitialize */
Stat = STA_NOINIT;
#if !defined(DISABLE_SD_INIT)
if(BSP_SD_Init() == MSD_OK)
{
Stat = SD_CheckStatus(lun);
}
#else
Stat = SD_CheckStatus(lun);
#endif
return Stat;
/* USER CODE END SDinitialize */
}
/**
* @brief Gets Disk Status
* @param lun : not used
* @retval DSTATUS: Operation status
*/
DSTATUS SD_status(BYTE lun)
{
return SD_CheckStatus(lun);
}
/**
* @brief Reads Sector(s)
* @param lun : not used
* @param *buff: Data buffer to store read data
* @param sector: Sector address (LBA)
* @param count: Number of sectors to read (1..128)
* @retval DRESULT: Operation result
*/
DRESULT SD_read(BYTE lun, BYTE *buff, DWORD sector, UINT count)
{
DRESULT res = RES_ERROR;
if(BSP_SD_ReadBlocks((uint32_t*)buff,
(uint32_t) (sector),
count, SD_TIMEOUT) == BSP_SD_OK)
{
/* wait until the read operation is finished */
while(BSP_SD_GetCardState()!= BSP_SD_OK)
{
}
res = RES_OK;
}
return res;
}
/**
* @brief Writes Sector(s)
* @param lun : not used
* @param *buff: Data to be written
* @param sector: Sector address (LBA)
* @param count: Number of sectors to write (1..128)
* @retval DRESULT: Operation result
*/
#if _USE_WRITE == 1
DRESULT SD_write(BYTE lun, const BYTE *buff, DWORD sector, UINT count)
{
DRESULT res = RES_ERROR;
if(BSP_SD_WriteBlocks((uint32_t*)buff,
(uint32_t)(sector),
count, SD_TIMEOUT) == MSD_OK)
{
/* wait until the Write operation is finished */
while(BSP_SD_GetCardState() != BSP_SD_OK)
{
}
res = RES_OK;
}
return res;
}
#endif /* _USE_WRITE == 1 */
/**
* @brief I/O control operation
* @param lun : not used
* @param cmd: Control code
* @param *buff: Buffer to send/receive control data
* @retval DRESULT: Operation result
*/
#if _USE_IOCTL == 1
DRESULT SD_ioctl(BYTE lun, BYTE cmd, void *buff)
{
DRESULT res = RES_ERROR;
BSP_SD_CardInfo CardInfo;
if (Stat & STA_NOINIT) return RES_NOTRDY;
switch (cmd)
{
/* Make sure that no pending write process */
case CTRL_SYNC :
res = RES_OK;
break;
/* Get number of sectors on the disk (DWORD) */
case GET_SECTOR_COUNT :
BSP_SD_GetCardInfo(&CardInfo);
*(DWORD*)buff = CardInfo.LogBlockNbr;
res = RES_OK;
break;
/* Get R/W sector size (WORD) */
case GET_SECTOR_SIZE :
BSP_SD_GetCardInfo(&CardInfo);
*(WORD*)buff = CardInfo.LogBlockSize;
res = RES_OK;
break;
/* Get erase block size in unit of sector (DWORD) */
case GET_BLOCK_SIZE :
BSP_SD_GetCardInfo(&CardInfo);
*(DWORD*)buff = CardInfo.LogBlockSize / SD_DEFAULT_BLOCK_SIZE;
res = RES_OK;
break;
default:
res = RES_PARERR;
}
return res;
}
#endif /* _USE_IOCTL == 1 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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