rt-thread/components/dfs/filesystems/elmfat/diskio.h

/*-----------------------------------------------------------------------/
/  Low level disk interface modlue include file   (C)ChaN, 2019          /
/-----------------------------------------------------------------------*/

#ifndef _DISKIO_DEFINED
#define _DISKIO_DEFINED

#ifdef __cplusplus
extern "C" {
#endif

/* 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_initialize (BYTE pdrv);
DSTATUS disk_status (BYTE pdrv);
DRESULT disk_read (BYTE pdrv, BYTE* buff, LBA_t sector, UINT count);
DRESULT disk_write (BYTE pdrv, const BYTE* buff, LBA_t 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 FF_FS_READONLY == 0) */
#define GET_SECTOR_COUNT    1   /* Get media size (needed at FF_USE_MKFS == 1) */
#define GET_SECTOR_SIZE     2   /* Get sector size (needed at FF_MAX_SS != FF_MIN_SS) */
#define GET_BLOCK_SIZE      3   /* Get erase block size (needed at FF_USE_MKFS == 1) */
#define CTRL_TRIM           4   /* Inform device that the data on the block of sectors is no longer used (needed at FF_USE_TRIM == 1) */

/* Generic command (Not used by FatFs) */
#define CTRL_POWER          5   /* Get/Set power status */
#define CTRL_LOCK           6   /* Lock/Unlock media removal */
#define CTRL_EJECT          7   /* Eject media */
#define CTRL_FORMAT         8   /* Create physical format on the media */

/* MMC/SDC specific ioctl command */
#define MMC_GET_TYPE        10  /* Get card type */
#define MMC_GET_CSD         11  /* Get CSD */
#define MMC_GET_CID         12  /* Get CID */
#define MMC_GET_OCR         13  /* Get OCR */
#define MMC_GET_SDSTAT      14  /* Get SD status */
#define ISDIO_READ          55  /* Read data form SD iSDIO register */
#define ISDIO_WRITE         56  /* Write data to SD iSDIO register */
#define ISDIO_MRITE         57  /* Masked write data to SD iSDIO register */

/* ATA/CF specific ioctl command */
#define ATA_GET_REV         20  /* Get F/W revision */
#define ATA_GET_MODEL       21  /* Get model name */
#define ATA_GET_SN          22  /* Get serial number */

#ifdef __cplusplus
}
#endif

#endif