ff.c File Reference

#include "ff.h"
#include "diskio.h"

Defines
#define	SS(fs)   512U
#define	ENTER_FF(fs)
#define	LEAVE_FF(fs, res)   return res
#define	ABORT(fs, res)   { fp->flag |= FA__ERROR; LEAVE_FF(fs, res); }
#define	LD_CLUST(dir)   (((DWORD)LD_WORD(dir+DIR_FstClusHI)<<16) | LD_WORD(dir+DIR_FstClusLO))
#define	ST_CLUST(dir, cl)   {ST_WORD(dir+DIR_FstClusLO, cl); ST_WORD(dir+DIR_FstClusHI, (DWORD)cl>>16);}
#define	IsUpper(c)   (((c)>='A')&&((c)<='Z'))
#define	IsLower(c)   (((c)>='a')&&((c)<='z'))
#define	IsDigit(c)   (((c)>='0')&&((c)<='9'))
#define	IsDBCS1(c)   0
#define	IsDBCS2(c)   0
#define	NS   11
#define	NS_LOSS   0x01
#define	NS_LFN   0x02
#define	NS_LAST   0x04
#define	NS_BODY   0x08
#define	NS_EXT   0x10
#define	NS_DOT   0x20
#define	MIN_FAT16   4086
#define	MIN_FAT32   65526
#define	BS_jmpBoot   0
#define	BS_OEMName   3
#define	BPB_BytsPerSec   11
#define	BPB_SecPerClus   13
#define	BPB_RsvdSecCnt   14
#define	BPB_NumFATs   16
#define	BPB_RootEntCnt   17
#define	BPB_TotSec16   19
#define	BPB_Media   21
#define	BPB_FATSz16   22
#define	BPB_SecPerTrk   24
#define	BPB_NumHeads   26
#define	BPB_HiddSec   28
#define	BPB_TotSec32   32
#define	BS_DrvNum   36
#define	BS_BootSig   38
#define	BS_VolID   39
#define	BS_VolLab   43
#define	BS_FilSysType   54
#define	BPB_FATSz32   36
#define	BPB_ExtFlags   40
#define	BPB_FSVer   42
#define	BPB_RootClus   44
#define	BPB_FSInfo   48
#define	BPB_BkBootSec   50
#define	BS_DrvNum32   64
#define	BS_BootSig32   66
#define	BS_VolID32   67
#define	BS_VolLab32   71
#define	BS_FilSysType32   82
#define	FSI_LeadSig   0
#define	FSI_StrucSig   484
#define	FSI_Free_Count   488
#define	FSI_Nxt_Free   492
#define	MBR_Table   446
#define	BS_55AA   510
#define	DIR_Name   0
#define	DIR_Attr   11
#define	DIR_NTres   12
#define	DIR_CrtTime   14
#define	DIR_CrtDate   16
#define	DIR_FstClusHI   20
#define	DIR_WrtTime   22
#define	DIR_WrtDate   24
#define	DIR_FstClusLO   26
#define	DIR_FileSize   28
#define	LDIR_Ord   0
#define	LDIR_Attr   11
#define	LDIR_Type   12
#define	LDIR_Chksum   13
#define	LDIR_FstClusLO   26
#define	DEF_NAMEBUF   BYTE sfn[12]
#define	INIT_BUF(dobj)   (dobj).fn = sfn
#define	FREE_BUF()
Functions
DWORD	clust2sect (FATFS *fs, DWORD clst)
DWORD	get_fat (FATFS *fs, DWORD clst)
FRESULT	put_fat (FATFS *fs, DWORD clst, DWORD val)
FRESULT	f_mount (BYTE vol, FATFS *fs)
FRESULT	f_open (FIL *fp, const TCHAR *path, BYTE mode)
FRESULT	f_read (FIL *fp, void *buff, UINT btr, UINT *br)
FRESULT	f_write (FIL *fp, const void *buff, UINT btw, UINT *bw)
FRESULT	f_sync (FIL *fp)
FRESULT	f_close (FIL *fp)
FRESULT	f_lseek (FIL *fp, DWORD ofs)
FRESULT	f_opendir (DIR *dj, const TCHAR *path)
FRESULT	f_readdir (DIR *dj, FILINFO *fno)
FRESULT	f_stat (const TCHAR *path, FILINFO *fno)
FRESULT	f_getfree (const TCHAR *path, DWORD *nclst, FATFS **fatfs)
FRESULT	f_truncate (FIL *fp)
FRESULT	f_unlink (const TCHAR *path)
FRESULT	f_mkdir (const TCHAR *path)
FRESULT	f_chmod (const TCHAR *path, BYTE value, BYTE mask)
FRESULT	f_utime (const TCHAR *path, const FILINFO *fno)
FRESULT	f_rename (const TCHAR *path_old, const TCHAR *path_new)

---

Define Documentation

#define ABORT	(		fs,
			res
	)			{ fp->flag |= FA__ERROR; LEAVE_FF(fs, res); }

#define BPB_BkBootSec   50

#define BPB_BytsPerSec   11

#define BPB_ExtFlags   40

#define BPB_FATSz16   22

#define BPB_FATSz32   36

#define BPB_FSInfo   48

#define BPB_FSVer   42

#define BPB_HiddSec   28

#define BPB_Media   21

#define BPB_NumFATs   16

#define BPB_NumHeads   26

#define BPB_RootClus   44

#define BPB_RootEntCnt   17

#define BPB_RsvdSecCnt   14

#define BPB_SecPerClus   13

#define BPB_SecPerTrk   24

#define BPB_TotSec16   19

#define BPB_TotSec32   32

#define BS_55AA   510

#define BS_BootSig   38

#define BS_BootSig32   66

#define BS_DrvNum   36

#define BS_DrvNum32   64

#define BS_FilSysType   54

#define BS_FilSysType32   82

#define BS_jmpBoot   0

#define BS_OEMName   3

#define BS_VolID   39

#define BS_VolID32   67

#define BS_VolLab   43

#define BS_VolLab32   71

#define DEF_NAMEBUF   BYTE sfn[12]

#define DIR_Attr   11

#define DIR_CrtDate   16

#define DIR_CrtTime   14

#define DIR_FileSize   28

#define DIR_FstClusHI   20

#define DIR_FstClusLO   26

#define DIR_Name   0

#define DIR_NTres   12

#define DIR_WrtDate   24

#define DIR_WrtTime   22

#define ENTER_FF

(

fs

)

#define FREE_BUF

(

)

#define FSI_Free_Count   488

#define FSI_LeadSig   0

#define FSI_Nxt_Free   492

#define FSI_StrucSig   484

#define INIT_BUF

(

dobj

)

(dobj).fn = sfn

#define IsDBCS1

(

c

)

0

#define IsDBCS2

(

c

)

0

#define IsDigit

(

c

)

(((c)>='0')&&((c)<='9'))

#define IsLower

(

c

)

(((c)>='a')&&((c)<='z'))

#define IsUpper

(

c

)

(((c)>='A')&&((c)<='Z'))

#define LD_CLUST

(

dir

)

(((DWORD)LD_WORD(dir+DIR_FstClusHI)<<16) | LD_WORD(dir+DIR_FstClusLO))

#define LDIR_Attr   11

#define LDIR_Chksum   13

#define LDIR_FstClusLO   26

#define LDIR_Ord   0

#define LDIR_Type   12

#define LEAVE_FF	(		fs,
			res
	)			return res

#define MBR_Table   446

#define MIN_FAT16   4086

#define MIN_FAT32   65526

#define NS   11

#define NS_BODY   0x08

#define NS_DOT   0x20

#define NS_EXT   0x10

#define NS_LAST   0x04

#define NS_LFN   0x02

#define NS_LOSS   0x01

#define SS

(

fs

)

512U

#define ST_CLUST	(		dir,
			cl
	)			{ST_WORD(dir+DIR_FstClusLO, cl); ST_WORD(dir+DIR_FstClusHI, (DWORD)cl>>16);}

---

Function Documentation

DWORD clust2sect	(	FATFS *	fs,
		DWORD	clst
	)

FRESULT f_chmod	(	const TCHAR *	path,
		BYTE	value,
		BYTE	mask
	)

FRESULT f_close

(

FIL *

fp

)

FRESULT f_getfree	(	const TCHAR *	path,
		DWORD *	nclst,
		FATFS **	fatfs
	)

FRESULT f_lseek	(	FIL *	fp,
		DWORD	ofs
	)

FRESULT f_mkdir

(

const TCHAR *

path

)

FRESULT f_mount	(	BYTE	vol,
		FATFS *	fs
	)

FRESULT f_open	(	FIL *	fp,
		const TCHAR *	path,
		BYTE	mode
	)

FRESULT f_opendir	(	DIR *	dj,
		const TCHAR *	path
	)

FRESULT f_read	(	FIL *	fp,
		void *	buff,
		UINT	btr,
		UINT *	br
	)

FRESULT f_readdir	(	DIR *	dj,
		FILINFO *	fno
	)

FRESULT f_rename	(	const TCHAR *	path_old,
		const TCHAR *	path_new
	)

FRESULT f_stat	(	const TCHAR *	path,
		FILINFO *	fno
	)

FRESULT f_sync

(

FIL *

fp

)

FRESULT f_truncate

(

FIL *

fp

)

FRESULT f_unlink

(

const TCHAR *

path

)

FRESULT f_utime	(	const TCHAR *	path,
		const FILINFO *	fno
	)

FRESULT f_write	(	FIL *	fp,
		const void *	buff,
		UINT	btw,
		UINT *	bw
	)

DWORD get_fat	(	FATFS *	fs,
		DWORD	clst
	)

FRESULT put_fat	(	FATFS *	fs,
		DWORD	clst,
		DWORD	val
	)