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CARME-M4 BSP
V1.5
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CARME-M4 BSP
V1.5
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Include dependency graph for ff.c:Go to the source code of this file.
Macros | |
| #define | SS(fs) ((fs)->ssize) |
| #define | ENTER_FF(fs) |
| Enter in a thread-safe state. | |
| #define | LEAVE_FF(fs, res) return res |
| Exit from a thread-safe state. | |
| #define | ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); } |
| Abort. | |
| #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 4086U |
| #define | MIN_FAT32 65526U |
| #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 | SZ_PTE 16 |
| #define | BS_55AA 510 |
| #define | DIR_Name 0 |
| #define | DIR_Attr 11 |
| #define | DIR_NTres 12 |
| #define | DIR_CrtTimeTenth 13 |
| #define | DIR_CrtTime 14 |
| #define | DIR_CrtDate 16 |
| #define | DIR_LstAccDate 18 |
| #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 | SZ_DIR 32 |
| #define | LLE 0x40 |
| #define | DDE 0xE5 |
| #define | NDDE 0x05 |
| #define | DEF_NAMEBUF BYTE sfn[12] |
| #define | INIT_BUF(dobj) (dobj).fn = sfn |
| #define | FREE_BUF() |
Functions | |
| static void | mem_cpy (void *dst, const void *src, UINT cnt) |
| Copy memory to memory. More... | |
| static void | mem_set (void *dst, int val, UINT cnt) |
| Fill memory. More... | |
| static int | mem_cmp (const void *dst, const void *src, UINT cnt) |
| Compare memory to memory. More... | |
| static int | chk_chr (const char *str, int chr) |
| Check if chr is contained in the string. More... | |
| static FRESULT | sync_window (FATFS *fs) |
| Sync window. More... | |
| static FRESULT | move_window (FATFS *fs, DWORD sector) |
| Move window. More... | |
| static FRESULT | sync_fs (FATFS *fs) |
| Synchronize file system and storage device. More... | |
| DWORD | clust2sect (FATFS *fs, DWORD clst) |
| Synchronize file system and storage device. More... | |
| DWORD | get_fat (FATFS *fs, DWORD clst) |
| Read value of a FAT entry. More... | |
| FRESULT | put_fat (FATFS *fs, DWORD clst, DWORD val) |
| Change value of a FAT entry. More... | |
| static FRESULT | remove_chain (FATFS *fs, DWORD clst) |
| Remove a cluster chain. More... | |
| static DWORD | create_chain (FATFS *fs, DWORD clst) |
| Stretch or Create a cluster chain. More... | |
| static FRESULT | dir_sdi (DIR *dp, WORD idx) |
| Set directory index. More... | |
| static FRESULT | dir_next (DIR *dp, int stretch) |
| Move directory table index next. More... | |
| static FRESULT | dir_alloc (DIR *dp, UINT nent) |
| Reserve directory entry. More... | |
| static DWORD | ld_clust (FATFS *fs, BYTE *dir) |
| Load/Store start cluster number. More... | |
| static void | st_clust (BYTE *dir, DWORD cl) |
| static FRESULT | dir_find (DIR *dp) |
| Find an object in the directory. More... | |
| static FRESULT | dir_read (DIR *dp, int vol) |
| Read an object from the directory. More... | |
| static FRESULT | dir_register (DIR *dp) |
| Register an object to the directory. More... | |
| static FRESULT | dir_remove (DIR *dp) |
| Remove an object from the directory. More... | |
| static FRESULT | create_name (DIR *dp, const TCHAR **path) |
| Pick a segment and create the object name in directory form. More... | |
| static void | get_fileinfo (DIR *dp, FILINFO *fno) |
| Get file information from directory entry. More... | |
| static int | get_ldnumber (const TCHAR **path) |
| Get logical drive number from path name. More... | |
| static FRESULT | follow_path (DIR *dp, const TCHAR *path) |
| Follow a file path. More... | |
| static BYTE | check_fs (FATFS *fs, DWORD sect) |
| Load a sector and check if it is an FAT boot sector. More... | |
| static FRESULT | find_volume (FATFS **rfs, const TCHAR **path, BYTE wmode) |
| Find logical drive and check if the volume is mounted. More... | |
| static FRESULT | validate (void *obj) |
| Check if the file/directory object is valid or not. More... | |
| FRESULT | f_mount (FATFS *fs, const TCHAR *path, BYTE opt) |
| Mount/Unmount a Logical Drive. More... | |
| FRESULT | f_open (FIL *fp, const TCHAR *path, BYTE mode) |
| Open or Create a File. More... | |
| FRESULT | f_read (FIL *fp, void *buff, UINT btr, UINT *br) |
| Read File. More... | |
| FRESULT | f_write (FIL *fp, const void *buff, UINT btw, UINT *bw) |
| Write File. More... | |
| FRESULT | f_sync (FIL *fp) |
| Synchronize the File. More... | |
| FRESULT | f_close (FIL *fp) |
| Close File. More... | |
| FRESULT | f_lseek (FIL *fp, DWORD ofs) |
| Seek File R/W Pointer. More... | |
| FRESULT | f_opendir (DIR *dp, const TCHAR *path) |
| Create a Directory Object. More... | |
| FRESULT | f_closedir (DIR *dp) |
| Close Directory. More... | |
| FRESULT | f_readdir (DIR *dp, FILINFO *fno) |
| Read Directory Entries in Sequence. More... | |
| FRESULT | f_stat (const TCHAR *path, FILINFO *fno) |
| Get File Status. More... | |
| FRESULT | f_getfree (const TCHAR *path, DWORD *nclst, FATFS **fatfs) |
| Get Number of Free Clusters. More... | |
| FRESULT | f_truncate (FIL *fp) |
| Truncate File. More... | |
| FRESULT | f_unlink (const TCHAR *path) |
| Delete a File or Directory. More... | |
| FRESULT | f_mkdir (const TCHAR *path) |
| Create a Directory. More... | |
| FRESULT | f_chmod (const TCHAR *path, BYTE value, BYTE mask) |
| Change Attribute. More... | |
| FRESULT | f_utime (const TCHAR *path, const FILINFO *fno) |
| Change Timestamp. More... | |
| FRESULT | f_rename (const TCHAR *path_old, const TCHAR *path_new) |
| Rename File/Directory. More... | |
Variables | |
| static WORD | Fsid |
Feb 26,'06 R0.00 Prototype.
Apr 29,'06 R0.01 First stable version.
Jun 01,'06 R0.02 Added FAT12 support. Removed unbuffered mode. Fixed a problem on small (<32M) partition. Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
Sep 22,'06 R0.03 Added f_rename(). Changed option _FS_MINIMUM to _FS_MINIMIZE. Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast. Fixed f_mkdir() creates incorrect directory on FAT32.
Feb 04,'07 R0.04 Supported multiple drive system. Changed some interfaces for multiple drive system. Changed f_mountdrv() to f_mount(). Added f_mkfs(). Apr 01,'07 R0.04a Supported multiple partitions on a physical drive. Added a capability of extending file size to f_lseek(). Added minimization level 3. Fixed an endian sensitive code in f_mkfs(). May 05,'07 R0.04b Added a configuration option _USE_NTFLAG. Added FSINFO support. Fixed DBCS name can result FR_INVALID_NAME. Fixed short seek (<= csize) collapses the file object.
Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs(). Fixed f_mkfs() on FAT32 creates incorrect FSINFO. Fixed f_mkdir() on FAT32 creates incorrect directory. Feb 03,'08 R0.05a Added f_truncate() and f_utime(). Fixed off by one error at FAT sub-type determination. Fixed btr in f_read() can be mistruncated. Fixed cached sector is not flushed when create and close without write.
Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets(). Improved performance of f_lseek() on moving to the same or following cluster.
Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY) Added long file name feature. Added multiple code page feature. Added re-entrancy for multitask operation. Added auto cluster size selection to f_mkfs(). Added rewind option to f_readdir(). Changed result code of critical errors. Renamed string functions to avoid name collision. Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg. Added multiple sector size feature. Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error. Fixed wrong cache control in f_lseek(). Added relative path feature. Added f_chdir() and f_chdrive(). Added proper case conversion to extended character. Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h. Fixed f_unlink() fails to remove a sub-directory on _FS_RPATH. Fixed name matching error on the 13 character boundary. Added a configuration option, _LFN_UNICODE. Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3) Added file lock feature. (_FS_SHARE) Added fast seek feature. (_USE_FASTSEEK) Changed some types on the API, XCHAR->TCHAR. Changed .fname in the FILINFO structure on Unicode cfg. String functions support UTF-8 encoding files on Unicode cfg. Aug 16,'10 R0.08a Added f_getcwd(). Added sector erase feature. (_USE_ERASE) Moved file lock semaphore table from fs object to the bss. Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'. Fixed f_mkfs() creates wrong FAT32 volume. Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write(). f_lseek() reports required table size on creating CLMP. Extended format syntax of f_printf(). Ignores duplicated directory separators in given path name.
Sep 06,'11 R0.09 f_mkfs() supports multiple partition to complete the multiple partition feature. Added f_fdisk(). Aug 27,'12 R0.09a Changed f_open() and f_opendir() reject null object pointer to avoid crash. Changed option name _FS_SHARE to _FS_LOCK. Fixed assertion failure due to OS/2 EA on FAT12/16 volume. Jan 24,'13 R0.09b Added f_setlabel() and f_getlabel().
Oct 02,'13 R0.10 Added selection of character encoding on the file. (_STRF_ENCODE) Added f_closedir(). Added forced full FAT scan for f_getfree(). (_FS_NOFSINFO) Added forced mount feature with changes of f_mount(). Improved behavior of volume auto detection. Improved write throughput of f_puts() and f_printf(). Changed argument of f_chdrive(), f_mkfs(), disk_read() and disk_write(). Fixed f_write() can be truncated when the file size is close to 4GB. Fixed f_open(), f_mkdir() and f_setlabel() can return incorrect error code.
Copyright © 2013, ChaN, all right reserved.
FatFs module is a generic FAT file system module for small embedded systems. This is a free software that opened for education, research and commercial developments under license policy of following terms.
Definition in file ff.c.
1.8.10 
