apfs_fat32_table.h

一个可以在开发板上运行的fat文件系统,是在windows平台下开发的,是学习文件系统的好帮手

//-----------------------------------------------------------------------------
// This file is part of AP.FS
// AP.FS is a FAT32 file system face to the embedded system,It's target is to
// support the portable storage device such as SD Card,TF Card or USB Disc 's
// file system.
// please login www.another-prj.com to get more details.
//																caiyuqing
//																2008-1-8
//-----------------------------------------------------------------------------
#ifndef _APFS_FAT32_TABLE_H
#define _APFS_FAT32_TABLE_H
#include "../typedef.h"

//-----------------------------------------------------------------------------
//							FAT Sector Read/Write Buffer
//-----------------------------------------------------------------------------
struct sector_buffer
{
	BYTE data[512];
	BYTE zero_buf[512];
	UINT32 sector;
	BOOL changed;
	UINT32 reads;
	UINT32 writes;
} ;

#define FAT32_GET_32BIT_WORD(location)	( GET_32BIT_WORD(sector_buffer.data, location) )
#define FAT32_SET_32BIT_WORD(location, value)	{ SET_32BIT_WORD(sector_buffer.data, location, value); sector_buffer.changed = TRUE; }


#endif