ff_gen_drv.c

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/* Includes ------------------------------------------------------------------*/
#include "ff_gen_drv.h"
 
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
Disk_drvTypeDef disk = {{0},{0},{0},0};
 
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
 
uint8_t FATFS_LinkDriverEx(const Diskio_drvTypeDef *drv, char *path, uint8_t lun)
{
  uint8_t ret = 1;
  uint8_t DiskNum = 0;
 
  if(disk.nbr < FF_VOLUMES)
  {
    disk.is_initialized[disk.nbr] = 0;
    disk.drv[disk.nbr] = drv;
    disk.lun[disk.nbr] = lun;
    DiskNum = disk.nbr++;
    path[0] = DiskNum + '0';
    path[1] = ':';
    path[2] = '/';
    path[3] = 0;
    ret = 0;
  }
 
  return ret;
}
 
uint8_t FATFS_LinkDriver(const Diskio_drvTypeDef *drv, char *path)
{
  return FATFS_LinkDriverEx(drv, path, 0);
}
 
uint8_t FATFS_UnLinkDriverEx(char *path, uint8_t lun)
{
  uint8_t DiskNum = 0;
  uint8_t ret = 1;
 
  if(disk.nbr >= 1)
  {
    DiskNum = path[0] - '0';
    if(disk.drv[DiskNum] != 0)
    {
      disk.drv[DiskNum] = 0;
      disk.lun[DiskNum] = 0;
      disk.nbr--;
      ret = 0;
    }
  }
 
  return ret;
}
 
uint8_t FATFS_UnLinkDriver(char *path)
{
  return FATFS_UnLinkDriverEx(path, 0);
}
 
uint8_t FATFS_GetAttachedDriversNbr(void)
{
  return disk.nbr;
}
 
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/