typedef.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 BYTE
		typedef unsigned char BYTE;
#endif

#ifndef BOOL
		typedef unsigned int BOOL;
#endif

#ifndef UINT16
		typedef unsigned short UINT16;
#endif

#ifndef UINT32
	typedef unsigned long UINT32;
#endif

#ifndef TRUE
	#define TRUE 1
#endif

#ifndef FALSE
	#define FALSE 0
#endif

#ifndef NULL
	#define NULL 0
#endif

#define GET_32BIT_WORD(buffer, location)	( ((UINT32)buffer[location+3]<<24) + ((UINT32)buffer[location+2]<<16) + ((UINT32)buffer[location+1]<<8) + (UINT32)buffer[location+0] )
#define GET_16BIT_WORD(buffer, location)	( ((UINT16)buffer[location+1]<<8) + (UINT16)buffer[location+0] )

#define SET_32BIT_WORD(buffer, location, value)	{ buffer[location+0] = (BYTE)((value)&0xFF); \
												  buffer[location+1] = (BYTE)((value>>8)&0xFF); \
												  buffer[location+2] = (BYTE)((value>>16)&0xFF); \
												  buffer[location+3] = (BYTE)((value>>24)&0xFF); }

#define SET_16BIT_WORD(buffer, location, value)	{ buffer[location+0] = (BYTE)((value)&0xFF); \
												  buffer[location+1] = (BYTE)((value>>8)&0xFF); }

#define DISK_ID 0
#define DEBUG
#define printk printf