diskio.c

来自「This is the latest VS1053B chip interfac」· C语言 代码 · 共 94 行

/*-----------------------------------------------------------------------*/
/* Low level disk I/O module skeleton for FatFs     (C)ChaN, 2007        */
/*-----------------------------------------------------------------------*/
/* This is a stub disk I/O module that acts as front end of the existing */
/* disk I/O modules and attach it to FatFs module with common interface. */
/*-----------------------------------------------------------------------*/


#include "diskio.h"
#include "mmc.h"

//#define MMC		1	/* Physical drive number for Multi Media Card */


/*-----------------------------------------------------------------------*/
/* Inidialize a Drive                                                    */

DSTATUS disk_initialize (
	BYTE drv				/* Physical drive nmuber */
)
{
	DSTATUS stat;
	int result;

	result = MMC_disk_initialize(0);
	return result;
}

/*-----------------------------------------------------------------------*/
/* Return Disk Status                                                    */

DSTATUS disk_status (
	BYTE drv		/* Physical drive nmuber */
)
{
	DSTATUS stat;
	int result;

	result = MMC_disk_status(0);
	return result;
}

/*-----------------------------------------------------------------------*/
/* Read Sector(s)                                                        */

DRESULT disk_read (
	BYTE drv,		/* Physical drive nmuber (0) */
	BYTE *buff,		/* Data buffer to store read data */
	DWORD sector,	        /* Sector number (LBA) */
	BYTE count		/* Sector count (1..255) */
)
{
	DRESULT res;
	int result;

	result = MMC_disk_read(0, buff, sector, count);
	return result;
}

/*-----------------------------------------------------------------------*/
/* Write Sector(s)                                                       */

#if _READONLY == 0
DRESULT disk_write (
	BYTE drv,			/* Physical drive nmuber (0) */
	const BYTE *buff,	/* Data to be written */
	DWORD sector,		/* Sector number (LBA) */
	BYTE count			/* Sector count (1..255) */
)
{
	DRESULT res;
	int result;

	result = MMC_disk_write(0, buff, sector, count);
	return result;
}
#endif /* _READONLY */

/*-----------------------------------------------------------------------*/
/* Miscellaneous Functions                                               */

DRESULT disk_ioctl (
	BYTE drv,		/* Physical drive nmuber */
	BYTE ctrl,		/* Control code */
	void *buff		/* Buffer to send/receive data block */
)
{
	DRESULT res;
	int result;

	result = MMC_disk_ioctl(0, ctrl, buff);
	return result;
}