source: ctrl/firmware/Main/CubeMX/Middlewares/Third_Party/FatFs/src/diskio.c

/*-----------------------------------------------------------------------*/
/* Low level disk I/O module skeleton for FatFs     (C)ChaN, 2017        */
/*                                                                       */
/*   Portions COPYRIGHT 2017 STMicroelectronics                          */
/*   Portions Copyright (C) 2017, ChaN, all right reserved               */
/*-----------------------------------------------------------------------*/
/* If a working storage control module is available, it should be        */
/* attached to the FatFs via a glue function rather than modifying it.   */
/* This is an example of glue functions to attach various existing      */
/* storage control modules to the FatFs module with a defined API.       */
/*-----------------------------------------------------------------------*/

/* Includes ------------------------------------------------------------------*/
#include "diskio.h"
#include "ff_gen_drv.h"

#if defined ( __GNUC__ )
#ifndef __weak
#define __weak __attribute__((weak))
#endif
#endif

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
extern Disk_drvTypeDef  disk;

/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/**
  * @brief  Gets Disk Status
  * @param  pdrv: Physical drive number (0..)
  * @retval DSTATUS: Operation status
  */
DSTATUS disk_status (
        BYTE pdrv               /* Physical drive number to identify the drive */
)
{
  DSTATUS stat;

  stat = disk.drv[pdrv]->disk_status(disk.lun[pdrv]);
  return stat;
}

/**
  * @brief  Initializes a Drive
  * @param  pdrv: Physical drive number (0..)
  * @retval DSTATUS: Operation status
  */
DSTATUS disk_initialize (
        BYTE pdrv                               /* Physical drive nmuber to identify the drive */
)
{
  DSTATUS stat = RES_OK;

  if(disk.is_initialized[pdrv] == 0)
  {
    stat = disk.drv[pdrv]->disk_initialize(disk.lun[pdrv]);
    if(stat == RES_OK)
    {
      disk.is_initialized[pdrv] = 1;
    }
  }
  return stat;
}

/**
  * @brief  Reads Sector(s)
  * @param  pdrv: Physical drive number (0..)
  * @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 disk_read (
        BYTE pdrv,              /* Physical drive nmuber to identify the drive */
        BYTE *buff,             /* Data buffer to store read data */
        DWORD sector,           /* Sector address in LBA */
        UINT count              /* Number of sectors to read */
)
{
  DRESULT res;

  res = disk.drv[pdrv]->disk_read(disk.lun[pdrv], buff, sector, count);
  return res;
}

/**
  * @brief  Writes Sector(s)
  * @param  pdrv: Physical drive number (0..)
  * @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 disk_write (
        BYTE pdrv,              /* Physical drive nmuber to identify the drive */
        const BYTE *buff,       /* Data to be written */
        DWORD sector,           /* Sector address in LBA */
        UINT count              /* Number of sectors to write */
)
{
  DRESULT res;

  res = disk.drv[pdrv]->disk_write(disk.lun[pdrv], buff, sector, count);
  return res;
}
#endif /* _USE_WRITE == 1 */

/**
  * @brief  I/O control operation
  * @param  pdrv: Physical drive number (0..)
  * @param  cmd: Control code
  * @param  *buff: Buffer to send/receive control data
  * @retval DRESULT: Operation result
  */
#if _USE_IOCTL == 1
DRESULT disk_ioctl (
        BYTE pdrv,              /* Physical drive nmuber (0..) */
        BYTE cmd,               /* Control code */
        void *buff              /* Buffer to send/receive control data */
)
{
  DRESULT res;

  res = disk.drv[pdrv]->disk_ioctl(disk.lun[pdrv], cmd, buff);
  return res;
}
#endif /* _USE_IOCTL == 1 */

/**
  * @brief  Gets Time from RTC
  * @param  None
  * @retval Time in DWORD
  */
__weak DWORD get_fattime (void)
{
  return 0;
}

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/