diskio.h

S64和VS1003的MP3播放实现的源代码/

/*-----------------------------------------------------------------------
/  Low level disk interface modlue include file  R0.04    (C)ChaN, 2007
/-----------------------------------------------------------------------*/

#ifndef _DISKIO

#define _READONLY	0	/* 1: Read-only mode */

#include "integer.h"

typedef unsigned char	DSTATUS;
typedef unsigned char	DRESULT;


/*---------------------------------------*/
/* Prototypes for disk control functions */
DSTATUS disk_initialize (BYTE);
DSTATUS disk_status (BYTE);
DRESULT disk_read (BYTE, BYTE*, DWORD, BYTE);
#if	_READONLY == 0
DRESULT disk_write (BYTE, const BYTE*, DWORD, BYTE);
#endif
DRESULT disk_ioctl (BYTE, BYTE, void*);

/*--------------------------------------*/
/* Prototypes for MMC control functions */
DSTATUS MMC_disk_initialize (void);
DSTATUS MMC_disk_status (void);
DRESULT MMC_disk_read (BYTE*, DWORD, BYTE);
#if	_READONLY == 0
DRESULT MMC_disk_write (const BYTE*, DWORD, BYTE);
#endif
DRESULT MMC_disk_ioctl (BYTE, void*);

/*--------------------------------------*/
/* Prototypes for USB control functions */
DSTATUS USB_disk_initialize (void);
DSTATUS USB_disk_status (void);
DRESULT USB_disk_read (BYTE*, DWORD, BYTE);
#if	_READONLY == 0
DRESULT USB_disk_write (const BYTE*, DWORD, BYTE);
#endif
DRESULT USB_disk_ioctl (BYTE, void*);

/*---------------------------------------*/
/* Timing functions                      */
void	disk_timerproc (void);


/* Results of Disk Functions (DRESULT) */

#define RES_OK			0		/* Successful */
#define	RES_ERROR		1		/* R/W Error */
#define	RES_WRPRT		2		/* Write Protected */
#define	RES_NOTRDY		3		/* Not Ready */
#define	RES_PARERR		4		/* Invalid Parameter */


/* 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() */

#define GET_SECTORS		1
#define CTRL_POWER		2
#define CTRL_LOCK		3
#define CTRL_EJECT		4
#define MMC_GET_CSD		10
#define MMC_GET_CID		11
#define MMC_GET_OCR		12
#define ATA_GET_REV		20
#define ATA_GET_MODEL	21
#define ATA_GET_SN		22
#define USB_GET_SIZE    0x53


#define _DISKIO
#endif