stage2/diskio.h

   1 /*-----------------------------------------------------------------------
   2 /  Low level disk interface modlue include file  R0.07   (C)ChaN, 2009
   3 /-----------------------------------------------------------------------*/
   4
   5 #ifndef _DISKIO
   6
   7 #define _READONLY       1       /* 1: Read-only mode */
   8 #define _USE_IOCTL      1
   9
  10 #include "types.h"
  11
  12 /* Status of Disk Functions */
  13 typedef BYTE    DSTATUS;
  14
  15 /* Results of Disk Functions */
  16 typedef enum {
  17         RES_OK = 0,             /* 0: Successful */
  18         RES_ERROR,              /* 1: R/W Error */
  19         RES_WRPRT,              /* 2: Write Protected */
  20         RES_NOTRDY,             /* 3: Not Ready */
  21         RES_PARERR              /* 4: Invalid Parameter */
  22 } DRESULT;
  23
  24 /*---------------------------------------*/
  25 /* Prototypes for disk control functions */
  26
  27 DSTATUS disk_initialize (BYTE);
  28 void disk_shutdown (BYTE);
  29 DSTATUS disk_status (BYTE);
  30 DRESULT disk_read (BYTE, BYTE*, DWORD, u32);
  31 #if     _READONLY == 0
  32 DRESULT disk_write (BYTE, const BYTE*, DWORD, u32);
  33 #endif
  34 DRESULT disk_ioctl (BYTE, BYTE, void*);
  35
  36 #if     _READONLY == 0
  37 DWORD get_fattime(void);
  38 #endif
  39
  40 /* Disk Status Bits (DSTATUS) */
  41
  42 #define STA_NOINIT              0x01    /* Drive not initialized */
  43 #define STA_NODISK              0x02    /* No medium in the drive */
  44 #define STA_PROTECT             0x04    /* Write protected */
  45
  46
  47 /* Command code for disk_ioctrl() */
  48
  49 /* Generic command */
  50 #define CTRL_SYNC                       0       /* Mandatory for write functions */
  51 #define GET_SECTOR_COUNT        1       /* Mandatory for only f_mkfs() */
  52 #define GET_SECTOR_SIZE         2
  53 #define GET_BLOCK_SIZE          3       /* Mandatory for only f_mkfs() */
  54
  55 #define _DISKIO
  56 #endif