FatFS file system service

Service of FatFS file system.

This service provides a generic FAT file system module for the ASF systems.

Macros
#define	_DF1S   0
#define	_EXCVT
#define	ABORT(fs, res)   { fp->flag |= FA__ERROR; LEAVE_FF(fs, res); }
#define	BPB_BkBootSec   50 /* Offset of backup boot sectot (2) */
#define	BPB_BytsPerSec   11 /* Sector size [byte] (2) */
#define	BPB_ExtFlags   40 /* Extended flags (2) */
#define	BPB_FATSz16   22 /* FAT size [sector] (2) */
#define	BPB_FATSz32   36 /* FAT size [sector] (4) */
#define	BPB_FSInfo   48 /* Offset of FSInfo sector (2) */
#define	BPB_FSVer   42 /* File system version (2) */
#define	BPB_HiddSec   28 /* Number of special hidden sectors (4) */
#define	BPB_Media   21 /* Media descriptor (1) */
#define	BPB_NumFATs   16 /* Number of FAT copies (1) */
#define	BPB_NumHeads   26 /* Number of heads (2) */
#define	BPB_RootClus   44 /* Root dir first cluster (4) */
#define	BPB_RootEntCnt   17 /* Number of root dir entries for FAT12/16 (2) */
#define	BPB_RsvdSecCnt   14 /* Size of reserved area [sector] (2) */
#define	BPB_SecPerClus   13 /* Cluster size [sector] (1) */
#define	BPB_SecPerTrk   24 /* Track size [sector] (2) */
#define	BPB_TotSec16   19 /* Volume size [sector] (2) */
#define	BPB_TotSec32   32 /* Volume size [sector] (4) */
#define	BS_55AA   510 /* Boot sector signature (2) */
#define	BS_BootSig   38 /* Extended boot signature (1) */
#define	BS_BootSig32   66 /* Extended boot signature (1) */
#define	BS_DrvNum   36 /* Physical drive number (2) */
#define	BS_DrvNum32   64 /* Physical drive number (2) */
#define	BS_FilSysType   54 /* File system type (1) */
#define	BS_FilSysType32   82 /* File system type (1) */
#define	BS_jmpBoot   0 /* Jump instruction (3) */
#define	BS_OEMName   3 /* OEM name (8) */
#define	BS_VolID   39 /* Volume serial number (4) */
#define	BS_VolID32   67 /* Volume serial number (4) */
#define	BS_VolLab   43 /* Volume label (8) */
#define	BS_VolLab32   71 /* Volume label (8) */
#define	DDE   0xE5 /* Deleted directory enrty mark in DIR_Name[0] */
#define	DEF_NAMEBUF   BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
#define	DIR_Attr   11 /* Attribute (1) */
#define	DIR_CrtDate   16 /* Created date (2) */
#define	DIR_CrtTime   14 /* Created time (2) */
#define	DIR_FileSize   28 /* File size (4) */
#define	DIR_FstClusHI   20 /* Higher 16-bit of first cluster (2) */
#define	DIR_FstClusLO   26 /* Lower 16-bit of first cluster (2) */
#define	DIR_Name   0 /* Short file name (11) */
#define	DIR_NTres   12 /* NT flag (1) */
#define	DIR_WrtDate   24 /* Modified date (2) */
#define	DIR_WrtTime   22 /* Modified time (2) */
#define	ENTER_FF(fs)
#define	FREE_BUF()
#define	FSI_Free_Count   488 /* FSI: Number of free clusters (4) */
#define	FSI_LeadSig   0 /* FSI: Leading signature (4) */
#define	FSI_Nxt_Free   492 /* FSI: Last allocated cluster (4) */
#define	FSI_StrucSig   484 /* FSI: Structure signature (4) */
#define	INIT_BUF(dobj)   { (dobj).fn = sfn; (dobj).lfn = lbuf; }
#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 /* LFN attribute (1) */
#define	LDIR_Chksum   13 /* Sum of corresponding SFN entry */
#define	LDIR_FstClusLO   26 /* Filled by zero (0) */
#define	LDIR_Ord   0 /* LFN entry order and LLE flag (1) */
#define	LDIR_Type   12 /* LFN type (1) */
#define	LEAVE_FF(fs, res)   return res
#define	LLE   0x40 /* Last long entry flag in LDIR_Ord */
#define	MBR_Table   446 /* MBR: Partition table offset (2) */
#define	MIN_FAT16   4086 /* Minimum number of clusters for FAT16 */
#define	MIN_FAT32   65526 /* Minimum number of clusters for FAT32 */
#define	NDDE   0x05 /* Replacement of a character collides with DDE */
#define	NS   11 /* Index of name status byte in fn[] */
#define	NS_BODY   0x08 /* Lower case flag (body) */
#define	NS_DOT   0x20 /* Dot entry */
#define	NS_EXT   0x10 /* Lower case flag (ext) */
#define	NS_LAST   0x04 /* Last segment */
#define	NS_LFN   0x02 /* Force to create LFN entry */
#define	NS_LOSS   0x01 /* Out of 8.3 format */
#define	SS(fs)   512U /* Fixed sector size */
#define	ST_CLUST(dir, cl)   {ST_WORD(dir+DIR_FstClusLO, cl); ST_WORD(dir+DIR_FstClusHI, (DWORD)cl>>16);}
#define	SZ_DIR   32 /* Size of a directory entry */
#define	SZ_PTE   16 /* MBR: Size of a partition table entry */

Functions
static BYTE	check_fs (FATFS *fs, DWORD sect)
static int	chk_chr (const char *str, int chr)
static FRESULT	chk_mounted (const TCHAR **path, FATFS **rfs, BYTE chk_wp)
static DWORD	clust2sect (FATFS *fs, DWORD clst)
static int	cmp_lfn (WCHAR *lfnbuf, BYTE *dir)
static DWORD	create_chain (FATFS *fs, DWORD clst)
static FRESULT	create_name (DIR *dj, const TCHAR **path)
static FRESULT	dir_find (DIR *dj)
static FRESULT	dir_next (DIR *dj, int stretch)
static FRESULT	dir_read (DIR *dj)
static FRESULT	dir_register (DIR *dj)
static FRESULT	dir_remove (DIR *dj)
static FRESULT	dir_sdi (DIR *dj, WORD idx)
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)
static void	fit_lfn (const WCHAR *lfnbuf, BYTE *dir, BYTE ord, BYTE sum)
static FRESULT	follow_path (DIR *dj, const TCHAR *path)
static void	gen_numname (BYTE *dst, const BYTE *src, const WCHAR *lfn, WORD seq)
static DWORD	get_fat (FATFS *fs, DWORD clst)
static void	get_fileinfo (DIR *dj, FILINFO *fno)
static int	mem_cmp (const void *dst, const void *src, UINT cnt)
static void	mem_cpy (void *dst, const void *src, UINT cnt)
static void	mem_set (void *dst, int val, UINT cnt)
static FRESULT	move_window (FATFS *fs, DWORD sector)
static int	pick_lfn (WCHAR *lfnbuf, BYTE *dir)
static FRESULT	put_fat (FATFS *fs, DWORD clst, DWORD val)
static FRESULT	remove_chain (FATFS *fs, DWORD clst)
static BYTE	sum_sfn (const BYTE *dir)
static FRESULT	sync (FATFS *fs)
static FRESULT	validate (FATFS *fs, WORD id)

Variables
static FATFS *	FatFs [_VOLUMES]
static WORD	Fsid
static const BYTE	LfnOfs [] = {1,3,5,7,9,14,16,18,20,22,24,28,30}

#define _DF1S   0

Referenced by create_name(), and get_fileinfo().

#define _EXCVT

Value:

{0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
                0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
                0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
                0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}

Referenced by create_name().

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

Referenced by f_lseek(), f_read(), and f_write().

#define BPB_BkBootSec   50 /* Offset of backup boot sectot (2) */

#define BPB_BytsPerSec   11 /* Sector size [byte] (2) */

Referenced by chk_mounted().

#define BPB_ExtFlags   40 /* Extended flags (2) */

#define BPB_FATSz16   22 /* FAT size [sector] (2) */

Referenced by chk_mounted().

#define BPB_FATSz32   36 /* FAT size [sector] (4) */

Referenced by chk_mounted().

#define BPB_FSInfo   48 /* Offset of FSInfo sector (2) */

Referenced by chk_mounted().

#define BPB_FSVer   42 /* File system version (2) */

#define BPB_HiddSec   28 /* Number of special hidden sectors (4) */

#define BPB_Media   21 /* Media descriptor (1) */

#define BPB_NumFATs   16 /* Number of FAT copies (1) */

Referenced by chk_mounted().

#define BPB_NumHeads   26 /* Number of heads (2) */

#define BPB_RootClus   44 /* Root dir first cluster (4) */

Referenced by chk_mounted().

#define BPB_RootEntCnt   17 /* Number of root dir entries for FAT12/16 (2) */

Referenced by chk_mounted().

#define BPB_RsvdSecCnt   14 /* Size of reserved area [sector] (2) */

Referenced by chk_mounted().

#define BPB_SecPerClus   13 /* Cluster size [sector] (1) */

Referenced by chk_mounted().

#define BPB_SecPerTrk   24 /* Track size [sector] (2) */

#define BPB_TotSec16   19 /* Volume size [sector] (2) */

Referenced by chk_mounted().

#define BPB_TotSec32   32 /* Volume size [sector] (4) */

Referenced by chk_mounted().

#define BS_55AA   510 /* Boot sector signature (2) */

Referenced by check_fs(), chk_mounted(), and sync().

#define BS_BootSig   38 /* Extended boot signature (1) */

#define BS_BootSig32   66 /* Extended boot signature (1) */

#define BS_DrvNum   36 /* Physical drive number (2) */

#define BS_DrvNum32   64 /* Physical drive number (2) */

#define BS_FilSysType   54 /* File system type (1) */

Referenced by check_fs().

#define BS_FilSysType32   82 /* File system type (1) */

Referenced by check_fs().

#define BS_jmpBoot   0 /* Jump instruction (3) */

#define BS_OEMName   3 /* OEM name (8) */

#define BS_VolID   39 /* Volume serial number (4) */

#define BS_VolID32   67 /* Volume serial number (4) */

#define BS_VolLab   43 /* Volume label (8) */

#define BS_VolLab32   71 /* Volume label (8) */

#define DDE   0xE5 /* Deleted directory enrty mark in DIR_Name[0] */

Referenced by create_name(), dir_find(), dir_read(), dir_register(), dir_remove(), and get_fileinfo().

#define DEF_NAMEBUF   BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]

Referenced by f_chmod(), f_mkdir(), f_open(), f_opendir(), f_readdir(), f_rename(), f_stat(), f_unlink(), and f_utime().

#define DIR_Attr   11 /* Attribute (1) */

Referenced by dir_find(), dir_read(), f_chmod(), f_mkdir(), f_open(), f_opendir(), f_rename(), f_sync(), f_unlink(), follow_path(), and get_fileinfo().

#define DIR_CrtDate   16 /* Created date (2) */

#define DIR_CrtTime   14 /* Created time (2) */

Referenced by f_open().

#define DIR_FileSize   28 /* File size (4) */

Referenced by f_open(), f_sync(), and get_fileinfo().

#define DIR_FstClusHI   20 /* Higher 16-bit of first cluster (2) */

#define DIR_FstClusLO   26 /* Lower 16-bit of first cluster (2) */

#define DIR_Name   0 /* Short file name (11) */

Referenced by dir_find(), dir_read(), and f_mkdir().

#define DIR_NTres   12 /* NT flag (1) */

Referenced by dir_register(), and get_fileinfo().

#define DIR_WrtDate   24 /* Modified date (2) */

Referenced by f_utime(), and get_fileinfo().

#define DIR_WrtTime   22 /* Modified time (2) */

Referenced by f_mkdir(), f_sync(), f_utime(), and get_fileinfo().

#define ENTER_FF

(

fs

)

Referenced by chk_mounted(), and validate().

#define FREE_BUF

(

)

Referenced by f_chmod(), f_mkdir(), f_open(), f_opendir(), f_readdir(), f_rename(), f_stat(), f_unlink(), and f_utime().

#define FSI_Free_Count   488 /* FSI: Number of free clusters (4) */

Referenced by chk_mounted(), and sync().

#define FSI_LeadSig   0 /* FSI: Leading signature (4) */

Referenced by chk_mounted(), and sync().

#define FSI_Nxt_Free   492 /* FSI: Last allocated cluster (4) */

Referenced by chk_mounted(), and sync().

#define FSI_StrucSig   484 /* FSI: Structure signature (4) */

Referenced by chk_mounted(), and sync().

#define INIT_BUF

(

dobj

)

{ (dobj).fn = sfn; (dobj).lfn = lbuf; }

Referenced by f_chmod(), f_mkdir(), f_open(), f_opendir(), f_readdir(), f_rename(), f_stat(), f_unlink(), and f_utime().

#define IsDBCS1

(

c

)

0

Referenced by create_name(), gen_numname(), and get_fileinfo().

#define IsDBCS2

(

c

)

0

Referenced by create_name(), and get_fileinfo().

#define IsDigit

(

c

)

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

#define IsLower

(

c

)

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

Referenced by create_name().

#define IsUpper

(

c

)

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

Referenced by create_name(), and get_fileinfo().

#define LD_CLUST

(

dir

)

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

Referenced by f_open(), f_opendir(), f_rename(), f_unlink(), and follow_path().

#define LDIR_Attr   11 /* LFN attribute (1) */

Referenced by fit_lfn().

#define LDIR_Chksum   13 /* Sum of corresponding SFN entry */

Referenced by dir_find(), dir_read(), and fit_lfn().

#define LDIR_FstClusLO   26 /* Filled by zero (0) */

Referenced by fit_lfn().

#define LDIR_Ord   0 /* LFN entry order and LLE flag (1) */

Referenced by cmp_lfn(), fit_lfn(), and pick_lfn().

#define LDIR_Type   12 /* LFN type (1) */

Referenced by fit_lfn().

#define LEAVE_FF	(		fs,
			res
	)		return res

Referenced by f_chmod(), f_close(), f_getfree(), f_lseek(), f_mkdir(), f_open(), f_opendir(), f_read(), f_readdir(), f_rename(), f_stat(), f_sync(), f_truncate(), f_unlink(), f_utime(), and f_write().

#define LLE   0x40 /* Last long entry flag in LDIR_Ord */

Referenced by cmp_lfn(), dir_find(), dir_read(), fit_lfn(), and pick_lfn().

#define MBR_Table   446 /* MBR: Partition table offset (2) */

Referenced by chk_mounted().

#define MIN_FAT16   4086 /* Minimum number of clusters for FAT16 */

Referenced by chk_mounted().

#define MIN_FAT32   65526 /* Minimum number of clusters for FAT32 */

Referenced by chk_mounted().

#define NDDE   0x05 /* Replacement of a character collides with DDE */

Referenced by create_name(), and get_fileinfo().

#define NS   11 /* Index of name status byte in fn[] */

Referenced by create_name(), dir_find(), dir_register(), f_chmod(), f_mkdir(), f_rename(), f_unlink(), f_utime(), and follow_path().

#define NS_BODY   0x08 /* Lower case flag (body) */

Referenced by create_name(), dir_register(), and get_fileinfo().

#define NS_DOT   0x20 /* Dot entry */

Referenced by create_name(), dir_register(), f_chmod(), f_mkdir(), f_rename(), f_unlink(), f_utime(), and follow_path().

#define NS_EXT   0x10 /* Lower case flag (ext) */

Referenced by create_name(), dir_register(), and get_fileinfo().

#define NS_LAST   0x04 /* Last segment */

Referenced by create_name(), and follow_path().

#define NS_LFN   0x02 /* Force to create LFN entry */

Referenced by create_name(), and dir_register().

#define NS_LOSS   0x01 /* Out of 8.3 format */

Referenced by create_name(), dir_find(), and dir_register().

#define SS

(

fs

)

512U /* Fixed sector size */

Referenced by chk_mounted(), dir_next(), dir_sdi(), f_getfree(), f_lseek(), f_mkdir(), f_read(), f_write(), get_fat(), and put_fat().

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

Referenced by f_mkdir(), f_open(), f_rename(), and f_sync().

#define SZ_DIR   32 /* Size of a directory entry */

Referenced by chk_mounted(), dir_next(), dir_register(), dir_sdi(), f_mkdir(), and f_rename().

#define SZ_PTE   16 /* MBR: Size of a partition table entry */

Referenced by chk_mounted().

static BYTE check_fs ( FATFS *  fs, DWORD  sect  )

static

References BS_55AA, BS_FilSysType, BS_FilSysType32, disk_read(), FATFS::drv, LD_DWORD, LD_WORD, RES_OK, and FATFS::win.

Referenced by chk_mounted().

static int chk_chr ( const char *  str, int  chr  )

static

Referenced by create_name().

static FRESULT chk_mounted ( const TCHAR **  path, FATFS **  rfs, BYTE  chk_wp  )

static

References _FS_READONLY, _VOLUMES, BPB_BytsPerSec, BPB_FATSz16, BPB_FATSz32, BPB_FSInfo, BPB_NumFATs, BPB_RootClus, BPB_RootEntCnt, BPB_RsvdSecCnt, BPB_SecPerClus, BPB_TotSec16, BPB_TotSec32, BS_55AA, check_fs(), FATFS::csize, FATFS::database, FATFS::dirbase, disk_initialize(), disk_ioctl(), disk_read(), disk_status(), FATFS::drv, ENTER_FF, FATFS::fatbase, FR_DISK_ERR, FR_INVALID_DRIVE, FR_NO_FILESYSTEM, FR_NOT_ENABLED, FR_NOT_READY, FR_OK, FR_WRITE_PROTECTED, FATFS::free_clust, FS_FAT12, FS_FAT16, FS_FAT32, FATFS::fs_type, FATFS::fsi_flag, FSI_Free_Count, FSI_LeadSig, FSI_Nxt_Free, FATFS::fsi_sector, FSI_StrucSig, Fsid, FATFS::fsize, GET_SECTOR_SIZE, FATFS::id, FATFS::last_clust, LD2PD, LD2PT, LD_DWORD, LD_WORD, MBR_Table, MIN_FAT16, MIN_FAT32, FATFS::n_fatent, FATFS::n_fats, FATFS::n_rootdir, RES_OK, SS, STA_NOINIT, STA_PROTECT, SZ_DIR, SZ_PTE, FATFS::wflag, FATFS::win, and FATFS::winsect.

Referenced by f_chmod(), f_getfree(), f_mkdir(), f_open(), f_opendir(), f_rename(), f_stat(), f_unlink(), and f_utime().

static DWORD clust2sect ( FATFS *  fs, DWORD  clst  )

static

References FATFS::csize, FATFS::database, and FATFS::n_fatent.

Referenced by dir_next(), dir_sdi(), f_lseek(), f_mkdir(), f_read(), f_rename(), f_write(), and remove_chain().

static int cmp_lfn ( WCHAR *  lfnbuf, BYTE *  dir  )

static

References _MAX_LFN, ff_wtoupper(), LD_WORD, LDIR_Ord, and LLE.

Referenced by dir_find().

static DWORD create_chain ( FATFS *  fs, DWORD  clst  )

static

References FR_DISK_ERR, FR_OK, FATFS::free_clust, FATFS::fsi_flag, get_fat(), FATFS::last_clust, FATFS::n_fatent, and put_fat().

Referenced by dir_next(), f_lseek(), f_mkdir(), and f_write().

static FRESULT create_name ( DIR *  dj, const TCHAR **  path  )

static

References _DF1S, _EXCVT, _MAX_LFN, chk_chr(), DDE, ff_convert(), ff_wtoupper(), DIR::fn, FR_INVALID_NAME, FR_OK, IsDBCS1, IsDBCS2, IsLower, IsUpper, DIR::lfn, mem_set(), NDDE, NS, NS_BODY, NS_DOT, NS_EXT, NS_LAST, NS_LFN, and NS_LOSS.

Referenced by follow_path().

static FRESULT dir_find ( DIR *  dj )

static

References AM_LFN, AM_MASK, AM_VOL, cmp_lfn(), DDE, DIR::dir, DIR_Attr, DIR_Name, dir_next(), dir_sdi(), DIR::fn, FR_NO_FILE, FR_OK, DIR::fs, DIR::index, LDIR_Chksum, DIR::lfn, DIR::lfn_idx, LLE, mem_cmp(), move_window(), NS, NS_LOSS, DIR::sect, and sum_sfn().

Referenced by dir_register(), and follow_path().

static FRESULT dir_next ( DIR *  dj, int  stretch  )

static

References DIR::clust, clust2sect(), create_chain(), FATFS::csize, DIR::dir, FR_DENIED, FR_DISK_ERR, FR_INT_ERR, FR_NO_FILE, FR_OK, DIR::fs, get_fat(), DIR::index, mem_set(), move_window(), FATFS::n_fatent, FATFS::n_rootdir, DIR::sect, SS, SZ_DIR, FATFS::wflag, FATFS::win, and FATFS::winsect.

Referenced by dir_find(), dir_read(), dir_register(), dir_remove(), and f_readdir().

static FRESULT dir_read ( DIR *  dj )

static

References _FS_RPATH, AM_LFN, AM_MASK, AM_VOL, DDE, DIR::dir, DIR_Attr, DIR_Name, dir_next(), FR_NO_FILE, FR_OK, DIR::fs, DIR::index, LDIR_Chksum, DIR::lfn, DIR::lfn_idx, LLE, move_window(), pick_lfn(), DIR::sect, and sum_sfn().

Referenced by f_readdir(), and f_unlink().

static FRESULT dir_register ( DIR *  dj )

static

References _FS_RPATH, DDE, DIR::dir, dir_find(), dir_next(), DIR_NTres, dir_sdi(), fit_lfn(), DIR::fn, FR_DENIED, FR_INVALID_NAME, FR_NO_FILE, FR_OK, DIR::fs, gen_numname(), DIR::index, DIR::lfn, mem_cpy(), mem_set(), move_window(), NS, NS_BODY, NS_DOT, NS_EXT, NS_LFN, NS_LOSS, DIR::sect, sum_sfn(), SZ_DIR, and FATFS::wflag.

Referenced by f_mkdir(), f_open(), and f_rename().

static FRESULT dir_remove ( DIR *  dj )

static

References DDE, DIR::dir, dir_next(), dir_sdi(), FR_INT_ERR, FR_NO_FILE, FR_OK, DIR::fs, DIR::index, DIR::lfn_idx, move_window(), DIR::sect, and FATFS::wflag.

Referenced by f_rename(), and f_unlink().

static FRESULT dir_sdi ( DIR *  dj, WORD  idx  )

static

References DIR::clust, clust2sect(), FATFS::csize, DIR::dir, FATFS::dirbase, FR_DISK_ERR, FR_INT_ERR, FR_OK, DIR::fs, FS_FAT32, FATFS::fs_type, get_fat(), DIR::index, FATFS::n_fatent, FATFS::n_rootdir, DIR::sclust, DIR::sect, SS, SZ_DIR, and FATFS::win.

Referenced by dir_find(), dir_register(), dir_remove(), f_opendir(), f_readdir(), f_unlink(), and follow_path().

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

References _FS_RPATH, AM_ARC, AM_HID, AM_RDO, AM_SYS, chk_mounted(), DEF_NAMEBUF, DIR::dir, DIR_Attr, DIR::fn, follow_path(), FR_INVALID_NAME, FR_OK, FREE_BUF, DIR::fs, INIT_BUF, LEAVE_FF, NS, NS_DOT, sync(), and FATFS::wflag.

FRESULT f_close

(

FIL *

fp

)

References f_sync(), FR_OK, FIL::fs, FIL::id, LEAVE_FF, and validate().

Referenced by http_client_callback(), is_exist_file(), store_file_packet(), and wifi_cb().

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

References chk_mounted(), FR_DISK_ERR, FR_INT_ERR, FR_OK, FS_FAT12, FS_FAT16, FS_FAT32, get_fat(), LD_DWORD, LD_WORD, LEAVE_FF, move_window(), and SS.

FRESULT f_lseek	(	FIL *	fp,
		DWORD	ofs
	)

References _FS_READONLY, ABORT, FIL::buf, FIL::clust, clust2sect(), create_chain(), CREATE_LINKMAP, FATFS::csize, disk_read(), disk_write(), FATFS::drv, FIL::dsect, FA__DIRTY, FA__ERROR, FA__WRITTEN, FA_WRITE, FIL::flag, FIL::fptr, FR_DISK_ERR, FR_INT_ERR, FR_NOT_ENOUGH_CORE, FR_OK, FIL::fs, FIL::fsize, get_fat(), FIL::id, LEAVE_FF, FATFS::n_fatent, RES_OK, FIL::sclust, SS, and validate().

FRESULT f_mkdir

(

const TCHAR *

path

)

References _FS_RPATH, AM_DIR, chk_mounted(), clust2sect(), create_chain(), FATFS::csize, DEF_NAMEBUF, DIR::dir, DIR_Attr, DIR_Name, dir_register(), DIR_WrtTime, FATFS::dirbase, DIR::fn, follow_path(), FR_DENIED, FR_DISK_ERR, FR_EXIST, FR_INT_ERR, FR_INVALID_NAME, FR_NO_FILE, FR_OK, FREE_BUF, DIR::fs, FS_FAT32, FATFS::fs_type, get_fattime(), INIT_BUF, LEAVE_FF, mem_cpy(), mem_set(), move_window(), NS, NS_DOT, remove_chain(), DIR::sclust, SS, ST_CLUST, ST_DWORD, sync(), SZ_DIR, FATFS::wflag, FATFS::win, and FATFS::winsect.

FRESULT f_mount	(	BYTE	vol,
		FATFS *	fs
	)

References _VOLUMES, FR_INT_ERR, FR_INVALID_DRIVE, FR_OK, and FATFS::fs_type.

Referenced by init_storage().

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

References AM_DIR, AM_RDO, chk_mounted(), DEF_NAMEBUF, DIR::dir, DIR_Attr, DIR_CrtTime, DIR_FileSize, FIL::dir_ptr, dir_register(), FIL::dir_sect, FIL::dsect, FA__WRITTEN, FA_CREATE_ALWAYS, FA_CREATE_NEW, FA_OPEN_ALWAYS, FA_READ, FA_WRITE, FIL::flag, follow_path(), FIL::fptr, FR_DENIED, FR_EXIST, FR_INT_ERR, FR_INVALID_NAME, FR_NO_FILE, FR_OK, FR_TOO_MANY_OPEN_FILES, FREE_BUF, FIL::fs, DIR::fs, FIL::fsize, get_fattime(), FATFS::id, FIL::id, INIT_BUF, FATFS::last_clust, LD_CLUST, LD_DWORD, LEAVE_FF, move_window(), remove_chain(), FIL::sclust, ST_CLUST, ST_DWORD, FATFS::wflag, and FATFS::winsect.

Referenced by is_exist_file(), and store_file_packet().

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

References AM_DIR, chk_mounted(), DEF_NAMEBUF, DIR::dir, DIR_Attr, dir_sdi(), follow_path(), FR_NO_FILE, FR_NO_PATH, FR_OK, FREE_BUF, DIR::fs, FATFS::id, DIR::id, INIT_BUF, LD_CLUST, LEAVE_FF, and DIR::sclust.

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

References ABORT, FIL::buf, FIL::clust, clust2sect(), FATFS::csize, disk_read(), disk_write(), FATFS::drv, FIL::dsect, FA__DIRTY, FA__ERROR, FA_READ, FIL::flag, FIL::fptr, FR_DENIED, FR_DISK_ERR, FR_INT_ERR, FR_OK, FIL::fs, FIL::fsize, get_fat(), FIL::id, LEAVE_FF, mem_cpy(), move_window(), RES_OK, FIL::sclust, SS, validate(), FATFS::wflag, FATFS::win, and FATFS::winsect.

FRESULT f_readdir	(	DIR *	dj,
		FILINFO *	fno
	)

References DEF_NAMEBUF, dir_next(), dir_read(), dir_sdi(), FR_NO_FILE, FR_OK, FREE_BUF, DIR::fs, get_fileinfo(), DIR::id, INIT_BUF, LEAVE_FF, DIR::sect, and validate().

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

References _FS_RPATH, AM_ARC, AM_DIR, chk_mounted(), clust2sect(), DEF_NAMEBUF, DIR::dir, DIR_Attr, dir_register(), dir_remove(), FATFS::dirbase, DIR::fn, follow_path(), FR_EXIST, FR_INT_ERR, FR_INVALID_NAME, FR_NO_FILE, FR_OK, FREE_BUF, DIR::fs, FS_FAT32, FATFS::fs_type, INIT_BUF, LD_CLUST, LEAVE_FF, mem_cpy(), move_window(), NS, NS_DOT, DIR::sclust, ST_CLUST, sync(), SZ_DIR, FATFS::wflag, and FATFS::win.

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

References chk_mounted(), DEF_NAMEBUF, DIR::dir, follow_path(), FR_INVALID_NAME, FR_OK, FREE_BUF, DIR::fs, get_fileinfo(), INIT_BUF, and LEAVE_FF.

FRESULT f_sync

(

FIL *

fp

)

References AM_ARC, FIL::buf, DIR_Attr, DIR_FileSize, FIL::dir_ptr, FIL::dir_sect, DIR_WrtTime, disk_write(), FATFS::drv, FIL::dsect, FA__DIRTY, FA__WRITTEN, FIL::flag, FR_DISK_ERR, FR_OK, FIL::fs, FIL::fsize, get_fattime(), FIL::id, LEAVE_FF, move_window(), RES_OK, FIL::sclust, ST_CLUST, ST_DWORD, sync(), validate(), and FATFS::wflag.

Referenced by f_close().

FRESULT f_truncate

(

FIL *

fp

)

References FIL::clust, FA__ERROR, FA__WRITTEN, FA_WRITE, FIL::flag, FIL::fptr, FR_DENIED, FR_DISK_ERR, FR_INT_ERR, FR_OK, FIL::fs, FIL::fsize, get_fat(), FIL::id, LEAVE_FF, FATFS::n_fatent, put_fat(), remove_chain(), FIL::sclust, and validate().

FRESULT f_unlink

(

const TCHAR *

path

)

References _FS_RPATH, AM_DIR, AM_RDO, chk_mounted(), DEF_NAMEBUF, DIR::dir, DIR_Attr, dir_read(), dir_remove(), dir_sdi(), DIR::fn, follow_path(), FR_DENIED, FR_INT_ERR, FR_INVALID_NAME, FR_NO_FILE, FR_OK, FREE_BUF, DIR::fs, INIT_BUF, LD_CLUST, LEAVE_FF, mem_cpy(), NS, NS_DOT, remove_chain(), DIR::sclust, and sync().

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

References _FS_RPATH, chk_mounted(), DEF_NAMEBUF, DIR::dir, DIR_WrtDate, DIR_WrtTime, FILINFO::fdate, DIR::fn, follow_path(), FR_INVALID_NAME, FR_OK, FREE_BUF, DIR::fs, FILINFO::ftime, INIT_BUF, LEAVE_FF, NS, NS_DOT, ST_WORD, sync(), and FATFS::wflag.

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

References ABORT, FIL::buf, FIL::clust, clust2sect(), create_chain(), FATFS::csize, disk_read(), disk_write(), FATFS::drv, FIL::dsect, FA__DIRTY, FA__ERROR, FA__WRITTEN, FA_WRITE, FIL::flag, FIL::fptr, FR_DENIED, FR_DISK_ERR, FR_INT_ERR, FR_OK, FIL::fs, FIL::fsize, FIL::id, LEAVE_FF, mem_cpy(), move_window(), RES_OK, FIL::sclust, SS, validate(), FATFS::wflag, FATFS::win, and FATFS::winsect.

Referenced by store_file_packet().

static void fit_lfn ( const WCHAR *  lfnbuf, BYTE *  dir, BYTE  ord, BYTE  sum  )

static

References AM_LFN, LDIR_Attr, LDIR_Chksum, LDIR_FstClusLO, LDIR_Ord, LDIR_Type, LLE, and ST_WORD.

Referenced by dir_register().

static FRESULT follow_path ( DIR *  dj, const TCHAR *  path  )

static

References _FS_RPATH, AM_DIR, create_name(), DIR::dir, DIR_Attr, dir_find(), dir_sdi(), DIR::fn, FR_NO_FILE, FR_NO_PATH, FR_OK, DIR::fs, LD_CLUST, NS, NS_DOT, NS_LAST, and DIR::sclust.

Referenced by f_chmod(), f_mkdir(), f_open(), f_opendir(), f_rename(), f_stat(), f_unlink(), and f_utime().

static void gen_numname ( BYTE *  dst, const BYTE *  src, const WCHAR *  lfn, WORD  seq  )

static

References IsDBCS1, and mem_cpy().

Referenced by dir_register().

static DWORD get_fat ( FATFS *  fs, DWORD  clst  )

static

References FATFS::fatbase, FS_FAT12, FS_FAT16, FS_FAT32, FATFS::fs_type, LD_DWORD, LD_WORD, move_window(), FATFS::n_fatent, SS, and FATFS::win.

Referenced by create_chain(), dir_next(), dir_sdi(), f_getfree(), f_lseek(), f_read(), f_truncate(), and remove_chain().

static void get_fileinfo ( DIR *  dj, FILINFO *  fno  )

static

References _DF1S, _USE_LFN, DDE, DIR::dir, DIR_Attr, DIR_FileSize, DIR_NTres, DIR_WrtDate, DIR_WrtTime, FILINFO::fattrib, FILINFO::fdate, ff_convert(), FILINFO::fname, FILINFO::fsize, FILINFO::ftime, IsDBCS1, IsDBCS2, IsUpper, LD_DWORD, LD_WORD, DIR::lfn, DIR::lfn_idx, FILINFO::lfname, FILINFO::lfsize, NDDE, NS_BODY, NS_EXT, and DIR::sect.

Referenced by f_readdir(), and f_stat().

static int mem_cmp ( const void *  dst, const void *  src, UINT  cnt  )

static

Referenced by dir_find().

static void mem_cpy ( void *  dst, const void *  src, UINT  cnt  )

static

Referenced by dir_register(), f_mkdir(), f_read(), f_rename(), f_unlink(), f_write(), and gen_numname().

static void mem_set ( void *  dst, int  val, UINT  cnt  )

static

Referenced by create_name(), dir_next(), dir_register(), f_mkdir(), and sync().

static FRESULT move_window ( FATFS *  fs, DWORD  sector  )

static

References disk_read(), disk_write(), FATFS::drv, FATFS::fatbase, FR_DISK_ERR, FR_OK, FATFS::fsize, FATFS::n_fats, RES_OK, FATFS::wflag, FATFS::win, and FATFS::winsect.

Referenced by dir_find(), dir_next(), dir_read(), dir_register(), dir_remove(), f_getfree(), f_mkdir(), f_open(), f_read(), f_rename(), f_sync(), f_write(), get_fat(), put_fat(), and sync().

static int pick_lfn ( WCHAR *  lfnbuf, BYTE *  dir  )

static

References _MAX_LFN, LD_WORD, LDIR_Ord, and LLE.

Referenced by dir_read().

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

static

References FATFS::fatbase, FR_INT_ERR, FR_OK, FS_FAT12, FS_FAT16, FS_FAT32, FATFS::fs_type, LD_DWORD, move_window(), FATFS::n_fatent, SS, ST_DWORD, ST_WORD, FATFS::wflag, and FATFS::win.

Referenced by create_chain(), f_truncate(), and remove_chain().

static FRESULT remove_chain ( FATFS *  fs, DWORD  clst  )

static

References clust2sect(), FATFS::csize, CTRL_ERASE_SECTOR, disk_ioctl(), FATFS::drv, FR_DISK_ERR, FR_INT_ERR, FR_OK, FATFS::free_clust, FATFS::fsi_flag, get_fat(), FATFS::n_fatent, and put_fat().

Referenced by f_mkdir(), f_open(), f_truncate(), and f_unlink().

static BYTE sum_sfn ( const BYTE *  dir )

static

Referenced by dir_find(), dir_read(), and dir_register().

static FRESULT sync ( FATFS *  fs )

static

References BS_55AA, CTRL_SYNC, disk_ioctl(), disk_write(), FATFS::drv, FR_DISK_ERR, FR_OK, FATFS::free_clust, FS_FAT32, FATFS::fs_type, FATFS::fsi_flag, FSI_Free_Count, FSI_LeadSig, FSI_Nxt_Free, FATFS::fsi_sector, FSI_StrucSig, FATFS::last_clust, mem_set(), move_window(), RES_OK, ST_DWORD, ST_WORD, FATFS::win, and FATFS::winsect.

Referenced by f_chmod(), f_mkdir(), f_rename(), f_sync(), f_unlink(), and f_utime().

static FRESULT validate ( FATFS *  fs, WORD  id  )

static

References disk_status(), FATFS::drv, ENTER_FF, FR_INVALID_OBJECT, FR_NOT_READY, FR_OK, FATFS::fs_type, FATFS::id, and STA_NOINIT.

Referenced by f_close(), f_lseek(), f_read(), f_readdir(), f_sync(), f_truncate(), and f_write().

FATFS* FatFs[_VOLUMES]

static

WORD Fsid

static

Referenced by chk_mounted().

const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}

static