1 /*----------------------------------------------------------------------------/ 2 / FatFs - Generic FAT Filesystem module R0.14a / 3 /-----------------------------------------------------------------------------/ 4 / 5 / Copyright (C) 2020, ChaN, all right reserved. 6 / 7 / FatFs module is an open source software. Redistribution and use of FatFs in 8 / source and binary forms, with or without modification, are permitted provided 9 / that the following condition is met: 10 11 / 1. Redistributions of source code must retain the above copyright notice, 12 / this condition and the following disclaimer. 13 / 14 / This software is provided by the copyright holder and contributors "AS IS" 15 / and any warranties related to this software are DISCLAIMED. 16 / The copyright owner or contributors be NOT LIABLE for any damages caused 17 / by use of this software. 18 / 19 /----------------------------------------------------------------------------*/ 20 21 22 #ifndef FF_DEFINED 23 #define FF_DEFINED 80196 /* Revision ID */ 24 25 #ifdef __cplusplus 26 extern "C" { 27 #endif 28 29 #include <dirent.h> 30 #include "integer.h" /* Basic integer types */ 31 #include "ffconf.h" /* FatFs configuration options */ 32 #ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION 33 #include "virpart.h" 34 #endif 35 #ifndef __LITEOS_M__ 36 #include "los_list.h" 37 #endif 38 #if FF_DEFINED != FFCONF_DEF 39 #error Wrong configuration file (ffconf.h). 40 #endif 41 42 /*--------------------------------*/ 43 /* LFN/Directory working buffer */ 44 /*--------------------------------*/ 45 46 #if FF_USE_LFN == 0 /* Non-LFN configuration */ 47 #define DEF_NAMBUF 48 #define INIT_NAMBUF(fs) 49 #define FREE_NAMBUF() 50 #define LEAVE_MKFS(res) return res 51 52 #else /* LFN configurations */ 53 #if FF_MAX_LFN < 12 || FF_MAX_LFN > 255 54 #error Wrong setting of FF_MAX_LFN 55 #endif 56 #if FF_LFN_BUF < FF_SFN_BUF || FF_SFN_BUF < 12 57 #error Wrong setting of FF_LFN_BUF or FF_SFN_BUF 58 #endif 59 #if FF_LFN_UNICODE < 0 || FF_LFN_UNICODE > 3 60 #error Wrong setting of FF_LFN_UNICODE 61 #endif 62 static const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* FAT: Offset of LFN characters in the directory entry */ 63 64 #if FF_USE_LFN == 1 /* LFN enabled with static working buffer */ 65 static WCHAR LfnBuf[FF_MAX_LFN + 1]; /* LFN working buffer */ 66 #define DEF_NAMBUF 67 #define INIT_NAMBUF(fs) 68 #define FREE_NAMBUF() 69 #define LEAVE_MKFS(res) return res 70 71 #elif FF_USE_LFN == 2 /* LFN enabled with dynamic working buffer on the stack */ 72 #define DEF_NAMBUF WCHAR lbuf[FF_MAX_LFN+1]; /* LFN working buffer */ 73 #define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; } 74 #define FREE_NAMBUF() 75 #define LEAVE_MKFS(res) return res 76 77 #elif FF_USE_LFN == 3 /* LFN enabled with dynamic working buffer on the heap */ 78 #define DEF_NAMBUF WCHAR *lfn; /* Pointer to LFN working buffer and directory entry block scratchpad buffer */ 79 #define INIT_NAMBUF(fs) { lfn = ff_memalloc((FF_MAX_LFN+1)*2); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; } 80 #define FREE_NAMBUF() ff_memfree(lfn) 81 #define LEAVE_MKFS(res) { if (!work) ff_memfree(buf); return res; } 82 #define MAX_MALLOC 0x8000 /* Must be >=FF_MAX_SS */ 83 84 #else 85 #error Wrong setting of FF_USE_LFN 86 87 #endif /* FF_USE_LFN == 1 */ 88 #endif /* FF_USE_LFN == 0 */ 89 90 91 #define NS_NONAME 0x80 /* Not followed */ 92 #define NSFLAG 11 /* Index of the name status byte */ 93 94 /* Definitions of volume management */ 95 96 typedef struct { 97 BYTE di; /* Physics disk id */ 98 BYTE pd; /* Physical drive number */ 99 BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */ 100 QWORD ps; /* Partition start sector */ 101 QWORD pc; /* Partition sector count */ 102 } PARTITION; 103 extern PARTITION VolToPart[]; /* Volume - Partition mapping table */ 104 #define LD2DI(vol) (VolToPart[vol].di) /* Get physical disk id */ 105 #define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */ 106 107 #if FF_MULTI_PARTITION /* Multiple partition configuration */ 108 #define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */ 109 #define LD2PS(vol) (VolToPart[vol].ps) /* Get partition start sector */ 110 #define LD2PC(vol) (VolToPart[vol].pc) /* Get partition sector count */ 111 112 #else /* Single partition configuration */ 113 #define LD2PT(vol) 0 /* Find first valid partition or in SFD */ 114 #define LD2PS(vol) 0 115 #define LD2PC(vol) 0 116 117 #endif 118 /* Type of path name strings on FatFs API */ 119 120 121 #ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION 122 typedef struct FAT_VIRTUAL_PARTITION { 123 virpartinfo virtualinfo; 124 BOOL isparamset; 125 } FAT_VIR_PART; 126 127 #define ISVIRPART(fs) ((fs)->vir_avail == FS_VIRENABLE) 128 #define ISNORMAL(fs) ((fs)->vir_avail != FS_VIRENABLE) 129 130 #define ISPARENT(fs) ((fs)->vir_flag == FS_PARENT) 131 #define ISCHILD(fs) ((fs)->vir_flag != FS_PARENT) 132 133 134 #define VIRINFO_EXTERNAL 0 135 #define VIRINFO_BUILDIN 1 136 #endif 137 138 139 140 /* Type of path name strings on FatFs API */ 141 142 #ifndef _INC_TCHAR 143 #define _INC_TCHAR 144 145 #if FF_USE_LFN && FF_LFN_UNICODE == 1 /* Unicode in UTF-16 encoding */ 146 typedef WCHAR TCHAR; 147 #define _T(x) L ## x 148 #define _TEXT(x) L ## x 149 #elif FF_USE_LFN && FF_LFN_UNICODE == 2 /* Unicode in UTF-8 encoding */ 150 typedef char TCHAR; 151 #define _T(x) u8 ## x 152 #define _TEXT(x) u8 ## x 153 #elif FF_USE_LFN && FF_LFN_UNICODE == 3 /* Unicode in UTF-32 encoding */ 154 typedef DWORD TCHAR; 155 #define _T(x) U ## x 156 #define _TEXT(x) U ## x 157 #elif FF_USE_LFN && (FF_LFN_UNICODE < 0 || FF_LFN_UNICODE > 3) 158 #error Wrong FF_LFN_UNICODE setting 159 #else /* ANSI/OEM code in SBCS/DBCS */ 160 typedef char TCHAR; 161 #define _T(x) x 162 #define _TEXT(x) x 163 #endif 164 #endif 165 166 #if (FF_MAX_SS == FF_MIN_SS) 167 #define SS(fs) ((UINT)FF_MAX_SS) /* Fixed sector size */ 168 #else 169 #define SS(fs) ((fs)->ssize) /* Variable sector size */ 170 #endif 171 172 173 /* Type of file size variables */ 174 typedef DWORD FSIZE_t; 175 typedef QWORD LBA_t; 176 177 /* DIR offset in fs win */ 178 #define DIR_Name 0 /* Short file name (11-byte) */ 179 #define DIR_Attr 11 /* Attribute (BYTE) */ 180 #define DIR_NTres 12 /* Lower case flag (BYTE) */ 181 #define DIR_CrtTime10 13 /* Created time sub-second (BYTE) */ 182 #define DIR_CrtTime 14 /* Created time (DWORD) */ 183 #define DIR_LstAccDate 18 /* Last accessed date (WORD) */ 184 #define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (WORD) */ 185 #define DIR_ModTime 22 /* Modified time (DWORD) */ 186 #define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (WORD) */ 187 #define DIR_FileSize 28 /* File size (DWORD) */ 188 #define LDIR_Ord 0 /* LFN: LFN order and LLE flag (BYTE) */ 189 #define LDIR_Attr 11 /* LFN: LFN attribute (BYTE) */ 190 #define LDIR_Type 12 /* LFN: Entry type (BYTE) */ 191 #define LDIR_Chksum 13 /* LFN: Checksum of the SFN (BYTE) */ 192 #define LDIR_FstClusLO 26 /* LFN: MBZ field (WORD) */ 193 194 195 /* Limits and boundaries */ 196 #define MAX_DIR 0x200000 /* Max size of FAT directory */ 197 #define MAX_FAT12 0xFF5 /* Max FAT12 clusters (differs from specs, but right for real DOS/Windows behavior) */ 198 #define MAX_FAT16 0xFFF5 /* Max FAT16 clusters (differs from specs, but right for real DOS/Windows behavior) */ 199 #define MAX_FAT32 0x0FFFFFF5 /* Max FAT32 clusters (not specified, practical limit) */ 200 201 202 /* Timestamp */ 203 #if FF_FS_NORTC == 1 204 #if FF_NORTC_YEAR < 1980 || FF_NORTC_YEAR > 2107 || FF_NORTC_MON < 1 || FF_NORTC_MON > 12 || FF_NORTC_MDAY < 1 || FF_NORTC_MDAY > 31 205 #error Invalid FF_FS_NORTC settings 206 #endif 207 #define GET_FATTIME() ((DWORD)(FF_NORTC_YEAR - 1980) << 25 | (DWORD)FF_NORTC_MON << 21 | (DWORD)FF_NORTC_MDAY << 16) 208 #else 209 #define GET_FATTIME() get_fattime() 210 #endif 211 212 extern UINT time_status; 213 214 /* Filesystem object structure (FATFS) */ 215 216 typedef struct { 217 BYTE fs_type; /* Filesystem type (0:not mounted) */ 218 BYTE pdrv; /* Associated physical drive */ 219 BYTE n_fats; /* Number of FATs (1 or 2) */ 220 BYTE wflag; /* win[] flag (b0:dirty) */ 221 BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */ 222 WORD id; /* Volume mount ID */ 223 WORD n_rootdir; /* Number of root directory entries (FAT12/16) */ 224 WORD csize; /* Cluster size [sectors] */ 225 #if FF_MAX_SS != FF_MIN_SS 226 size_t ssize; /* Sector size (512, 1024, 2048 or 4096) */ 227 #endif 228 #if FF_USE_LFN 229 WCHAR* lfnbuf; /* LFN working buffer */ 230 #endif 231 #if FF_FS_REENTRANT 232 FF_SYNC_t sobj; /* Identifier of sync object */ 233 #endif 234 #if !FF_FS_READONLY 235 DWORD last_clst; /* Last allocated cluster */ 236 DWORD free_clst; /* Number of free clusters */ 237 #endif 238 #if FF_FS_RPATH 239 DWORD cdir; /* Current directory start cluster (0:root) */ 240 #endif 241 DWORD n_fatent; /* Number of FAT entries, = number of clusters + 2 */ 242 DWORD fsize; /* Sectors per FAT */ 243 LBA_t volbase; /* Volume base sector */ 244 LBA_t fatbase; /* FAT base sector */ 245 LBA_t dirbase; /* Root directory base sector/cluster */ 246 LBA_t database; /* Data base sector */ 247 LBA_t winsect; /* Current sector appearing in the win[] */ 248 BYTE* win; /* Disk access window for Directory, FAT (and file data at tiny cfg) */ 249 250 #ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION 251 DWORD st_clst; 252 DWORD ct_clst; 253 BYTE vir_flag; /* Flag of Virtual Filesystem Object, b0 : 1 for virtual Fatfs object, 0 for reality Fatfs object */ 254 BYTE vir_avail; 255 DWORD vir_amount; 256 VOID* parent_fs; /* Point to the reality Fatfs object, only available in virtual Fatfs object */ 257 CHAR namelabel[_MAX_ENTRYLENGTH + 1]; /* The name label point to the each virtual Fatfs object ,only available in virtual Fatfs obj */ 258 VOID** child_fs; /* Point to the child Fatfs object ,only available in reality Fatfs object */ 259 #endif 260 #ifndef __LITEOS_M__ 261 int fs_uid; 262 int fs_gid; 263 mode_t fs_mode; 264 #endif 265 unsigned short fs_dmask; 266 unsigned short fs_fmask; 267 } FATFS; 268 269 270 271 /* Object ID and allocation information (FFOBJID) */ 272 273 typedef struct { 274 FATFS* fs; /* Pointer to the hosting volume of this object */ 275 WORD id; /* Hosting volume mount ID */ 276 BYTE attr; /* Object attribute */ 277 BYTE stat; /* Object chain status (b1-0: =0:not contiguous, =2:contiguous, =3:fragmented in this session, b2:sub-directory stretched) */ 278 DWORD sclust; /* Object data start cluster (0:no cluster or root directory) */ 279 FSIZE_t objsize; /* Object size (valid when sclust != 0) */ 280 #if FF_FS_LOCK 281 UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */ 282 #endif 283 } FFOBJID; 284 285 286 287 /* File object structure (FIL) */ 288 289 typedef struct { 290 FFOBJID obj; /* Object identifier (must be the 1st member to detect invalid object pointer) */ 291 BYTE flag; /* File status flags */ 292 BYTE err; /* Abort flag (error code) */ 293 FSIZE_t fptr; /* File read/write pointer (Zeroed on file open) */ 294 DWORD clust; /* Current cluster of fpter (invalid when fptr is 0) */ 295 LBA_t sect; /* Sector number appearing in buf[] (0:invalid) */ 296 #if !FF_FS_READONLY 297 LBA_t dir_sect; /* Sector number containing the directory entry */ 298 BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */ 299 #endif 300 #if FF_USE_FASTSEEK 301 DWORD* cltbl; /* Pointer to the cluster link map table (nulled on open, set by application) */ 302 #endif 303 #if !FF_FS_TINY 304 BYTE* buf; /* File private data read/write window */ 305 #endif 306 #ifndef __LITEOS_M__ 307 LOS_DL_LIST fp_entry; 308 #endif 309 } FIL; 310 311 312 313 /* Directory object structure (DIR) */ 314 315 struct __dirstream { 316 FFOBJID obj; /* Object identifier */ 317 DWORD dptr; /* Current read/write offset */ 318 DWORD clust; /* Current cluster */ 319 LBA_t sect; /* Current sector (0:Read operation has terminated) */ 320 BYTE* dir; /* Pointer to the directory item in the win[] */ 321 BYTE fn[12]; /* SFN (in/out) {body[8],ext[3],status[1]} */ 322 #if FF_USE_LFN 323 DWORD blk_ofs; /* Offset of current entry block being processed (0xFFFFFFFF:Invalid) */ 324 #endif 325 #if FF_USE_FIND 326 const TCHAR* pat; /* Pointer to the name matching pattern */ 327 #endif 328 #ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION 329 BYTE atrootdir; 330 #endif 331 }; 332 333 /* File information structure (FILINFO) */ 334 335 typedef struct { 336 FSIZE_t fsize; /* File size */ 337 WORD fdate; /* Modified date */ 338 WORD ftime; /* Modified time */ 339 BYTE fattrib; /* File attribute */ 340 #if FF_USE_LFN 341 TCHAR altname[FF_SFN_BUF + 1];/* Altenative file name */ 342 TCHAR fname[FF_LFN_BUF + 1]; /* Primary file name */ 343 #else 344 TCHAR fname[12 + 1]; /* File name */ 345 #endif 346 DWORD sclst; 347 #ifndef __LITEOS_M__ 348 LOS_DL_LIST fp_list; 349 #endif 350 } FILINFO; 351 352 #ifndef __LITEOS_M__ 353 typedef struct { 354 DWORD clst; 355 FSIZE_t pos; 356 } FAT_ENTRY; 357 #endif 358 359 /* Format parameter structure (MKFS_PARM) */ 360 361 typedef struct { 362 BYTE fmt; /* Format option (FM_FAT, FM_FAT32, FM_EXFAT and FM_SFD) */ 363 BYTE n_fat; /* Number of FATs */ 364 UINT align; /* Data area alignment (sector) */ 365 UINT n_root; /* Number of root directory entries */ 366 int n_sect; /* Cluster size (sector) */ 367 } MKFS_PARM; 368 369 typedef struct { 370 DIR f_dir; 371 FILINFO fno; 372 #ifndef __LITEOS_M__ 373 FAT_ENTRY fat_entry; 374 #endif 375 } DIR_FILE; 376 377 /* File function return code (FRESULT) */ 378 379 typedef enum { 380 FR_OK = 0, /* (0) Succeeded */ 381 FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */ 382 FR_INT_ERR, /* (2) Assertion failed */ 383 FR_NOT_READY, /* (3) The physical drive cannot work */ 384 FR_NO_FILE, /* (4) Could not find the file */ 385 FR_NO_PATH, /* (5) Could not find the path */ 386 FR_INVALID_NAME, /* (6) The path name format is invalid */ 387 FR_DENIED, /* (7) Access denied due to prohibited access or directory full */ 388 FR_EXIST, /* (8) Access denied due to prohibited access */ 389 FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */ 390 FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */ 391 FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */ 392 FR_NOT_ENABLED, /* (12) The volume has no work area */ 393 FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */ 394 FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any problem */ 395 FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */ 396 FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */ 397 FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */ 398 FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > FF_FS_LOCK */ 399 FR_INVALID_PARAMETER, /* (19) Given parameter is invalid */ 400 FR_NO_SPACE_LEFT, /* (20) No space left */ 401 FR_NO_DIRENTRY, /* (21) No directory entry to allocate */ 402 FR_NO_EMPTY_DIR, /* (22) Directory not empty */ 403 FR_IS_DIR, /* (23) Is a directory */ 404 FR_NO_DIR, /* (24) Not a directory */ 405 FR_NO_EPERM, /* (25) Operation not permitted */ 406 #ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION 407 FR_MODIFIED, /* (26) Virtual Partition Info has been modified by other fictions */ 408 FR_CHAIN_ERR, /* (27) File cluster chain has been broken by the other enviornmnet */ 409 FR_INVAILD_FATFS, /* (28) FATFS object error */ 410 FR_NOVIRPART, /* (29) The external SD card has not been set a virtual partition configure */ 411 FR_OCCUPIED, /* (30) The virtual partition has been illegally occupied. */ 412 FR_NOTCLEAR, /* (31) The root directory is not clear */ 413 FR_NOTFIT, /* (32) The partition does not fit the virtual partition feature */ 414 #endif 415 } FRESULT; 416 417 418 /*--------------------------------------------------------------*/ 419 /* FatFs module application interface */ 420 #ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION 421 FATFS* f_getfatfs (int vol); 422 FRESULT f_scanfat (FATFS* fs); 423 FRESULT f_boundary (FATFS *fs, DWORD clust); 424 FRESULT f_disvirfs (FATFS* fs); 425 FRESULT f_unregvirfs (FATFS* fs); 426 FRESULT f_regvirfs (FATFS* fs); 427 FRESULT f_checkvirpart (FATFS* fs, const TCHAR* path, BYTE vol); 428 FRESULT f_makevirpart (FATFS* fs, const TCHAR* path, BYTE vol); 429 FRESULT f_getvirfree (const TCHAR* path, DWORD* nclst, DWORD* cclst); 430 FRESULT f_checkname (const TCHAR* path); 431 #endif 432 FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */ 433 FRESULT f_close (FIL* fp); /* Close an open file object */ 434 FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from the file */ 435 FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to the file */ 436 FRESULT f_lseek (FIL* fp, FSIZE_t ofs); /* Move file pointer of the file object */ 437 FRESULT f_truncate (FIL* fp, FSIZE_t length); /* Truncate the file */ 438 FRESULT f_sync (FIL* fp); /* Flush cached data of the writing file */ 439 FRESULT f_opendir (DIR* dp, const TCHAR* path); /* Open a directory */ 440 FRESULT f_closedir (DIR* dp); /* Close an open directory */ 441 FRESULT f_readdir (DIR* dp, FILINFO* fno); /* Read a directory item */ 442 FRESULT f_findfirst (DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */ 443 FRESULT f_findnext (DIR* dp, FILINFO* fno); /* Find next file */ 444 FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */ 445 FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */ 446 FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */ 447 FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */ 448 FRESULT f_chmod (const TCHAR* path, BYTE attr, BYTE mask); /* Change attribute of a file/dir */ 449 FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change timestamp of a file/dir */ 450 FRESULT f_chdir (const TCHAR* path); /* Change current directory */ 451 FRESULT f_chdrive (const TCHAR* path); /* Change current drive */ 452 FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */ 453 FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */ 454 FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */ 455 FRESULT f_setlabel (const TCHAR* label); /* Set volume label */ 456 FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */ 457 FRESULT f_expand (FIL* fp, FSIZE_t offset, FSIZE_t fsz, int opt); /* Allocate a contiguous block to the file */ 458 FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */ 459 FRESULT f_mkfs (const TCHAR* path, const MKFS_PARM* opt, void* work, UINT len); /* Create a FAT volume */ 460 FRESULT f_fdisk (BYTE pdrv, const DWORD szt[], void* work); /* Divide a physical drive into some partitions */ 461 FRESULT f_setcp (WORD cp); /* Set current code page */ 462 int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */ 463 int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */ 464 int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */ 465 TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */ 466 void f_clean (const TCHAR* path); /* clean all opening file and directory */ 467 void f_settimestatus (UINT status); /* system time flag setting */ 468 FRESULT f_fcheckfat (DIR_FILE* dir_info); /* check file cluster list */ 469 FRESULT f_getclustinfo (FIL* fp, DWORD* fclust, DWORD* fcount); /* get the clusters information of the file */ 470 FRESULT f_checkopenlock(int index); 471 FRESULT sync_fs (FATFS* fs); 472 FRESULT sync_window(FATFS *fs); 473 FRESULT move_window (FATFS* fs, QWORD sector); 474 FRESULT fat_count_free_entries(DWORD *nclst, FATFS *fs); 475 void get_fileinfo (DIR* dp, FILINFO* fno); 476 DWORD get_fat (FFOBJID *obj, DWORD clst); 477 FRESULT put_fat(FATFS *fs, DWORD clst, DWORD val); 478 FRESULT mount_volume (const TCHAR **path, FATFS **rfs, BYTE mode); 479 QWORD clst2sect (FATFS* fs, DWORD clst ); 480 DWORD ld_clust(FATFS *fs, const BYTE *dir); 481 void st_clust(FATFS *fs, BYTE *dir, DWORD cl); 482 DWORD ld_dword (const BYTE *ptr); 483 WORD ld_word (const BYTE *ptr); 484 void st_dword (BYTE *ptr, DWORD val); 485 void st_word (BYTE *ptr, WORD val); 486 FRESULT create_name (DIR *dp, const TCHAR **path); 487 int lock_fs (FATFS *fs); 488 UINT check_fs(FATFS *fs, QWORD sect); 489 UINT inc_lock(DIR* dp, int acc); 490 void unlock_fs (FATFS *fs, FRESULT res); 491 FRESULT dir_sdi (DIR *dp, DWORD ofs); 492 FRESULT dir_find(DIR *dp); 493 FRESULT dir_read(DIR *dp, int vol); 494 #ifndef __LITEOS_M__ 495 FRESULT dir_read_massive(DIR *dp, int vol); 496 #endif 497 FRESULT dir_remove(DIR *dp); 498 FRESULT dir_next(DIR *dp, int stretch); 499 DWORD dir_ofs(DIR* dp); 500 FRESULT dir_register(DIR *dp); 501 DWORD create_chain (FFOBJID* obj, DWORD clst); 502 FRESULT remove_chain (FFOBJID* obj, DWORD clst, DWORD pclst); 503 void mem_set (void* dst, int val, UINT cnt); 504 void mem_cpy (void* dst, const void* src, UINT cnt); 505 int fatfs_get_vol (FATFS *fat); 506 FRESULT set_volumn_label(FATFS *fs, const TCHAR *label); 507 508 #define f_eof(fp) ((int)((fp)->fptr == (fp)->obj.objsize)) 509 #define f_error(fp) ((fp)->err) 510 #define f_tell(fp) ((fp)->fptr) 511 #define f_size(fp) ((fp)->obj.objsize) 512 #define f_rewind(fp) f_lseek((fp), 0) 513 #define f_rewinddir(dp) f_readdir((dp), 0) 514 #define f_rmdir(path) f_unlink(path) 515 #define f_unmount(path) f_mount(0, path, 0) 516 517 518 519 520 /*--------------------------------------------------------------*/ 521 /* Additional user defined functions */ 522 523 /* RTC function */ 524 #if !FF_FS_READONLY && !FF_FS_NORTC 525 DWORD get_fattime (void); 526 #endif 527 528 /* LFN support functions */ 529 #if FF_USE_LFN >= 1 /* Code conversion (defined in unicode.c) */ 530 WCHAR ff_oem2uni (WCHAR oem, WORD cp); /* OEM code to Unicode conversion */ 531 WCHAR ff_uni2oem (DWORD uni, WORD cp); /* Unicode to OEM code conversion */ 532 DWORD ff_wtoupper (DWORD uni); /* Unicode upper-case conversion */ 533 #endif 534 void* ff_memalloc (UINT msize); /* Allocate memory block */ 535 void ff_memfree (void* mblock); /* Free memory block */ 536 #ifndef __LITEOS_M__ 537 int ff_strnlen(const void *str, size_t maxlen); 538 #endif 539 540 /* Sync functions */ 541 #if FF_FS_REENTRANT 542 int ff_cre_syncobj (BYTE vol, FF_SYNC_t* sobj); /* Create a sync object */ 543 int ff_req_grant (FF_SYNC_t* sobj); /* Lock sync object */ 544 void ff_rel_grant (FF_SYNC_t* sobj); /* Unlock sync object */ 545 int ff_del_syncobj (FF_SYNC_t* sobj); /* Delete a sync object */ 546 #endif 547 548 549 550 551 /*--------------------------------------------------------------*/ 552 /* Flags and offset address */ 553 554 555 /* File access mode and open method flags (3rd argument of f_open) */ 556 #define FA_READ 0x01 557 #define FA_WRITE 0x02 558 #define FA_OPEN_EXISTING 0x00 559 #define FA_CREATE_NEW 0x04 560 #define FA_CREATE_ALWAYS 0x08 561 #define FA_OPEN_ALWAYS 0x10 562 #define FA_OPEN_APPEND 0x30 563 564 /* Fast seek controls (2nd argument of f_lseek) */ 565 #define CREATE_LINKMAP ((FSIZE_t)0 - 1) 566 567 /* Format options (2nd argument of f_mkfs) */ 568 #define FM_FAT 0x01 569 #define FM_FAT32 0x02 570 #define FM_ANY 0x07 571 #define FM_SFD 0x08 572 573 /*System Time Flag */ 574 #define SYSTEM_TIME_ENABLE 0x01 575 #define SYSTEM_TIME_DISABLE 0x00 576 577 /* Filesystem type (FATFS.fs_type) */ 578 #define FS_FAT12 1 579 #define FS_FAT16 2 580 #define FS_FAT32 3 581 582 /* File attribute bits for directory entry (FILINFO.fattrib) */ 583 #define AM_RDO 0x01 /* Read only */ 584 #define AM_HID 0x02 /* Hidden */ 585 #define AM_SYS 0x04 /* System */ 586 #define AM_DIR 0x10 /* Directory */ 587 #define AM_ARC 0x20 /* Archive */ 588 #define AM_LNK 0x80 /* Symbol link */ 589 590 #ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION 591 #define FS_PARENT 0x00 592 #define FS_CHILD 0x01 593 594 #define FS_VIRENABLE 0x01 595 #define FS_VIRDISABLE 0x00 596 597 #define PARENTFS(fs) ((FATFS*)((fs)->parent_fs)) 598 #define CHILDFS(fs, i) ((FATFS*)(*((fs)->child_fs + (i)))) 599 #endif 600 601 #ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION 602 /* Global Data Area @ 0x00 - 0x31 (32 Bytes) */ 603 #define VR_ITEMSIZE 0x20 604 #define VR_GLOBAL 0x00 605 #define VR_PartitionCnt 0x00 /* Virtual Partition Amount */ 606 #define VR_PartitionFSType 0x01 /* Filesystem Type (1 Byte) */ 607 #define VR_PartitionStSec 0x02 /* Partition Start Sector (4 Bytes) */ 608 #define VR_PartitionCtSec 0x06 /* Partition Sectors Count (4 Bytes) */ 609 #define VR_PartitionClstSz 0x0A /* Partition Clust Size (2 Bytes) */ 610 #define VR_PartitionCtClst 0x0C /* Partition Clust Amount (4 Bytes) */ 611 /* Each Virtual Partition Area (32 Bytes) */ 612 /* Start offset at 0x20, Each entry is at 32 Bytes */ 613 #define VR_PARTITION 0x20 614 #define VR_Available 0x00 /* Vritual Partition Item Flag (1 Bytes) */ 615 #define VR_StartClust 0x01 /* Vritual Partition Start Cluster (4 Bytes) */ 616 #define VR_CountClust 0x05 /* Virtual Partition Cluster Count (4 Bytes) */ 617 #define VR_Entry 0x10 /* Virtual Partition Entry Label (16 Bytes) */ 618 619 #define VR_VertifyString 0x1FC /* Vertify String (4 Bytes), Must be "LITE" */ 620 #endif 621 622 #ifdef __cplusplus 623 } 624 #endif 625 626 #endif /* FF_DEFINED */ 627