diskio.h

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/*-----------------------------------------------------------------------/
/  Low level disk interface modlue include file   (C)ChaN, 2014          /
/-----------------------------------------------------------------------*/
 
#ifndef _DISKIO_DEFINED
#define _DISKIO_DEFINED
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define _USE_WRITE  1   /* 1: Enable disk_write function */
#define _USE_IOCTL  1   /* 1: Enable disk_ioctl fucntion */
 
#include <typedefs.h>
 
 
/* Status of Disk Functions */
typedef BYTE    DSTATUS;
 
/* Results of Disk Functions */
typedef enum {
    RES_OK = 0,     /* 0: Successful */
    RES_ERROR,      /* 1: R/W Error */
    RES_WRPRT,      /* 2: Write Protected */
    RES_NOTRDY,     /* 3: Not Ready */
    RES_PARERR      /* 4: Invalid Parameter */
} DRESULT;
 
 
/*---------------------------------------*/
/* Prototypes for disk control functions */
 
DSTATUS disk_openimage(BYTE pdrv, const char* imageFileName);
VOID disk_cleanup(BYTE pdrv);
 
DSTATUS disk_initialize (BYTE pdrv);
DSTATUS disk_status (BYTE pdrv);
DRESULT disk_read (BYTE pdrv, BYTE* buff, DWORD sector, UINT count);
DRESULT disk_write (BYTE pdrv, const BYTE* buff, DWORD sector, UINT count);
DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff);
 
 
/* Disk Status Bits (DSTATUS) */
 
#define STA_NOINIT      0x01    /* Drive not initialized */
#define STA_NODISK      0x02    /* No medium in the drive */
#define STA_PROTECT     0x04    /* Write protected */
 
 
/* Command code for disk_ioctrl fucntion */
 
/* Generic command (Used by FatFs) */
#define CTRL_SYNC           0   /* Complete pending write process (needed at _FS_READONLY == 0) */
#define GET_SECTOR_COUNT    1   /* Get media size (needed at _USE_MKFS == 1) */
#define GET_SECTOR_SIZE     2   /* Get sector size (needed at _MAX_SS != _MIN_SS) */
#define GET_BLOCK_SIZE      3   /* Get erase block size (needed at _USE_MKFS == 1) */
#define CTRL_TRIM           4   /* Inform device that the data on the block of sectors is no longer used (needed at _USE_TRIM == 1) */
 
/* Custom command for image file resizing */
#define SET_SECTOR_COUNT    126
 
#ifdef __cplusplus
}
#endif
 
#endif