Mark Schwarzer / SDFileSystem

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Dependents:   Schwarzer_A7_1

FATFileSystem/ChaN/ff.h@0:964d386ab059, 2020-11-09 (annotated)

Committer:
markschwarzer
Date:
Mon Nov 09 14:25:13 2020 +0000
Revision:
0:964d386ab059
logged data in SD card

Who changed what in which revision?

UserRevisionLine numberNew contents of line
markschwarzer 0:964d386ab059 1 /*---------------------------------------------------------------------------/
markschwarzer 0:964d386ab059 2 / FatFs - FAT file system module include R0.11a (C)ChaN, 2015
markschwarzer 0:964d386ab059 3 /----------------------------------------------------------------------------/
markschwarzer 0:964d386ab059 4 / FatFs module is a free software that opened under license policy of
markschwarzer 0:964d386ab059 5 / following conditions.
markschwarzer 0:964d386ab059 6 /
markschwarzer 0:964d386ab059 7 / Copyright (C) 2015, ChaN, all right reserved.
markschwarzer 0:964d386ab059 8 /
markschwarzer 0:964d386ab059 9 / 1. Redistributions of source code must retain the above copyright notice,
markschwarzer 0:964d386ab059 10 / this condition and the following disclaimer.
markschwarzer 0:964d386ab059 11 /
markschwarzer 0:964d386ab059 12 / This software is provided by the copyright holder and contributors "AS IS"
markschwarzer 0:964d386ab059 13 / and any warranties related to this software are DISCLAIMED.
markschwarzer 0:964d386ab059 14 / The copyright owner or contributors be NOT LIABLE for any damages caused
markschwarzer 0:964d386ab059 15 / by use of this software.
markschwarzer 0:964d386ab059 16 /---------------------------------------------------------------------------*/
markschwarzer 0:964d386ab059 17
markschwarzer 0:964d386ab059 18
markschwarzer 0:964d386ab059 19 #ifndef _FATFS
markschwarzer 0:964d386ab059 20 #define _FATFS 64180 /* Revision ID */
markschwarzer 0:964d386ab059 21
markschwarzer 0:964d386ab059 22 #ifdef __cplusplus
markschwarzer 0:964d386ab059 23 extern "C" {
markschwarzer 0:964d386ab059 24 #endif
markschwarzer 0:964d386ab059 25
markschwarzer 0:964d386ab059 26 #include "integer.h" /* Basic integer types */
markschwarzer 0:964d386ab059 27 #include "ffconf.h" /* FatFs configuration options */
markschwarzer 0:964d386ab059 28 #if _FATFS != _FFCONF
markschwarzer 0:964d386ab059 29 #error Wrong configuration file (ffconf.h).
markschwarzer 0:964d386ab059 30 #endif
markschwarzer 0:964d386ab059 31
markschwarzer 0:964d386ab059 32
markschwarzer 0:964d386ab059 33
markschwarzer 0:964d386ab059 34 /* Definitions of volume management */
markschwarzer 0:964d386ab059 35
markschwarzer 0:964d386ab059 36 #if _MULTI_PARTITION /* Multiple partition configuration */
markschwarzer 0:964d386ab059 37 typedef struct {
markschwarzer 0:964d386ab059 38 BYTE pd; /* Physical drive number */
markschwarzer 0:964d386ab059 39 BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
markschwarzer 0:964d386ab059 40 } PARTITION;
markschwarzer 0:964d386ab059 41 extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
markschwarzer 0:964d386ab059 42 #define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
markschwarzer 0:964d386ab059 43 #define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
markschwarzer 0:964d386ab059 44
markschwarzer 0:964d386ab059 45 #else /* Single partition configuration */
markschwarzer 0:964d386ab059 46 #define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
markschwarzer 0:964d386ab059 47 #define LD2PT(vol) 0 /* Find first valid partition or in SFD */
markschwarzer 0:964d386ab059 48
markschwarzer 0:964d386ab059 49 #endif
markschwarzer 0:964d386ab059 50
markschwarzer 0:964d386ab059 51
markschwarzer 0:964d386ab059 52
markschwarzer 0:964d386ab059 53 /* Type of path name strings on FatFs API */
markschwarzer 0:964d386ab059 54
markschwarzer 0:964d386ab059 55 #if _LFN_UNICODE /* Unicode string */
markschwarzer 0:964d386ab059 56 #if !_USE_LFN
markschwarzer 0:964d386ab059 57 #error _LFN_UNICODE must be 0 at non-LFN cfg.
markschwarzer 0:964d386ab059 58 #endif
markschwarzer 0:964d386ab059 59 #ifndef _INC_TCHAR
markschwarzer 0:964d386ab059 60 typedef WCHAR TCHAR;
markschwarzer 0:964d386ab059 61 #define _T(x) L ## x
markschwarzer 0:964d386ab059 62 #define _TEXT(x) L ## x
markschwarzer 0:964d386ab059 63 #endif
markschwarzer 0:964d386ab059 64
markschwarzer 0:964d386ab059 65 #else /* ANSI/OEM string */
markschwarzer 0:964d386ab059 66 #ifndef _INC_TCHAR
markschwarzer 0:964d386ab059 67 typedef char TCHAR;
markschwarzer 0:964d386ab059 68 #define _T(x) x
markschwarzer 0:964d386ab059 69 #define _TEXT(x) x
markschwarzer 0:964d386ab059 70 #endif
markschwarzer 0:964d386ab059 71
markschwarzer 0:964d386ab059 72 #endif
markschwarzer 0:964d386ab059 73
markschwarzer 0:964d386ab059 74
markschwarzer 0:964d386ab059 75
markschwarzer 0:964d386ab059 76 /* File system object structure (FATFS) */
markschwarzer 0:964d386ab059 77
markschwarzer 0:964d386ab059 78 typedef struct {
markschwarzer 0:964d386ab059 79 BYTE fs_type; /* FAT sub-type (0:Not mounted) */
markschwarzer 0:964d386ab059 80 BYTE drv; /* Physical drive number */
markschwarzer 0:964d386ab059 81 BYTE csize; /* Sectors per cluster (1,2,4...128) */
markschwarzer 0:964d386ab059 82 BYTE n_fats; /* Number of FAT copies (1 or 2) */
markschwarzer 0:964d386ab059 83 BYTE wflag; /* win[] flag (b0:dirty) */
markschwarzer 0:964d386ab059 84 BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */
markschwarzer 0:964d386ab059 85 WORD id; /* File system mount ID */
markschwarzer 0:964d386ab059 86 WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
markschwarzer 0:964d386ab059 87 #if _MAX_SS != _MIN_SS
markschwarzer 0:964d386ab059 88 WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
markschwarzer 0:964d386ab059 89 #endif
markschwarzer 0:964d386ab059 90 #if _FS_REENTRANT
markschwarzer 0:964d386ab059 91 _SYNC_t sobj; /* Identifier of sync object */
markschwarzer 0:964d386ab059 92 #endif
markschwarzer 0:964d386ab059 93 #if !_FS_READONLY
markschwarzer 0:964d386ab059 94 DWORD last_clust; /* Last allocated cluster */
markschwarzer 0:964d386ab059 95 DWORD free_clust; /* Number of free clusters */
markschwarzer 0:964d386ab059 96 #endif
markschwarzer 0:964d386ab059 97 #if _FS_RPATH
markschwarzer 0:964d386ab059 98 DWORD cdir; /* Current directory start cluster (0:root) */
markschwarzer 0:964d386ab059 99 #endif
markschwarzer 0:964d386ab059 100 DWORD n_fatent; /* Number of FAT entries, = number of clusters + 2 */
markschwarzer 0:964d386ab059 101 DWORD fsize; /* Sectors per FAT */
markschwarzer 0:964d386ab059 102 DWORD volbase; /* Volume start sector */
markschwarzer 0:964d386ab059 103 DWORD fatbase; /* FAT start sector */
markschwarzer 0:964d386ab059 104 DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
markschwarzer 0:964d386ab059 105 DWORD database; /* Data start sector */
markschwarzer 0:964d386ab059 106 DWORD winsect; /* Current sector appearing in the win[] */
markschwarzer 0:964d386ab059 107 BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */
markschwarzer 0:964d386ab059 108 } FATFS;
markschwarzer 0:964d386ab059 109
markschwarzer 0:964d386ab059 110
markschwarzer 0:964d386ab059 111
markschwarzer 0:964d386ab059 112 /* File object structure (FIL) */
markschwarzer 0:964d386ab059 113
markschwarzer 0:964d386ab059 114 typedef struct {
markschwarzer 0:964d386ab059 115 FATFS* fs; /* Pointer to the related file system object (**do not change order**) */
markschwarzer 0:964d386ab059 116 WORD id; /* Owner file system mount ID (**do not change order**) */
markschwarzer 0:964d386ab059 117 BYTE flag; /* Status flags */
markschwarzer 0:964d386ab059 118 BYTE err; /* Abort flag (error code) */
markschwarzer 0:964d386ab059 119 DWORD fptr; /* File read/write pointer (Zeroed on file open) */
markschwarzer 0:964d386ab059 120 DWORD fsize; /* File size */
markschwarzer 0:964d386ab059 121 DWORD sclust; /* File start cluster (0:no cluster chain, always 0 when fsize is 0) */
markschwarzer 0:964d386ab059 122 DWORD clust; /* Current cluster of fpter (not valid when fprt is 0) */
markschwarzer 0:964d386ab059 123 DWORD dsect; /* Sector number appearing in buf[] (0:invalid) */
markschwarzer 0:964d386ab059 124 #if !_FS_READONLY
markschwarzer 0:964d386ab059 125 DWORD dir_sect; /* Sector number containing the directory entry */
markschwarzer 0:964d386ab059 126 BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */
markschwarzer 0:964d386ab059 127 #endif
markschwarzer 0:964d386ab059 128 #if _USE_FASTSEEK
markschwarzer 0:964d386ab059 129 DWORD* cltbl; /* Pointer to the cluster link map table (Nulled on file open) */
markschwarzer 0:964d386ab059 130 #endif
markschwarzer 0:964d386ab059 131 #if _FS_LOCK
markschwarzer 0:964d386ab059 132 UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */
markschwarzer 0:964d386ab059 133 #endif
markschwarzer 0:964d386ab059 134 #if !_FS_TINY
markschwarzer 0:964d386ab059 135 BYTE buf[_MAX_SS]; /* File private data read/write window */
markschwarzer 0:964d386ab059 136 #endif
markschwarzer 0:964d386ab059 137 } FIL;
markschwarzer 0:964d386ab059 138
markschwarzer 0:964d386ab059 139
markschwarzer 0:964d386ab059 140
markschwarzer 0:964d386ab059 141 /* Directory object structure (FATFS_DIR) */
markschwarzer 0:964d386ab059 142
markschwarzer 0:964d386ab059 143 typedef struct {
markschwarzer 0:964d386ab059 144 FATFS* fs; /* Pointer to the owner file system object (**do not change order**) */
markschwarzer 0:964d386ab059 145 WORD id; /* Owner file system mount ID (**do not change order**) */
markschwarzer 0:964d386ab059 146 WORD index; /* Current read/write index number */
markschwarzer 0:964d386ab059 147 DWORD sclust; /* Table start cluster (0:Root dir) */
markschwarzer 0:964d386ab059 148 DWORD clust; /* Current cluster */
markschwarzer 0:964d386ab059 149 DWORD sect; /* Current sector */
markschwarzer 0:964d386ab059 150 BYTE* dir; /* Pointer to the current SFN entry in the win[] */
markschwarzer 0:964d386ab059 151 BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
markschwarzer 0:964d386ab059 152 #if _FS_LOCK
markschwarzer 0:964d386ab059 153 UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
markschwarzer 0:964d386ab059 154 #endif
markschwarzer 0:964d386ab059 155 #if _USE_LFN
markschwarzer 0:964d386ab059 156 WCHAR* lfn; /* Pointer to the LFN working buffer */
markschwarzer 0:964d386ab059 157 WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
markschwarzer 0:964d386ab059 158 #endif
markschwarzer 0:964d386ab059 159 #if _USE_FIND
markschwarzer 0:964d386ab059 160 const TCHAR* pat; /* Pointer to the name matching pattern */
markschwarzer 0:964d386ab059 161 #endif
markschwarzer 0:964d386ab059 162 } FATFS_DIR;
markschwarzer 0:964d386ab059 163
markschwarzer 0:964d386ab059 164
markschwarzer 0:964d386ab059 165
markschwarzer 0:964d386ab059 166 /* File information structure (FILINFO) */
markschwarzer 0:964d386ab059 167
markschwarzer 0:964d386ab059 168 typedef struct {
markschwarzer 0:964d386ab059 169 DWORD fsize; /* File size */
markschwarzer 0:964d386ab059 170 WORD fdate; /* Last modified date */
markschwarzer 0:964d386ab059 171 WORD ftime; /* Last modified time */
markschwarzer 0:964d386ab059 172 BYTE fattrib; /* Attribute */
markschwarzer 0:964d386ab059 173 TCHAR fname[13]; /* Short file name (8.3 format) */
markschwarzer 0:964d386ab059 174 #if _USE_LFN
markschwarzer 0:964d386ab059 175 TCHAR* lfname; /* Pointer to the LFN buffer */
markschwarzer 0:964d386ab059 176 UINT lfsize; /* Size of LFN buffer in TCHAR */
markschwarzer 0:964d386ab059 177 #endif
markschwarzer 0:964d386ab059 178 } FILINFO;
markschwarzer 0:964d386ab059 179
markschwarzer 0:964d386ab059 180
markschwarzer 0:964d386ab059 181
markschwarzer 0:964d386ab059 182 /* File function return code (FRESULT) */
markschwarzer 0:964d386ab059 183
markschwarzer 0:964d386ab059 184 typedef enum {
markschwarzer 0:964d386ab059 185 FR_OK = 0, /* (0) Succeeded */
markschwarzer 0:964d386ab059 186 FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
markschwarzer 0:964d386ab059 187 FR_INT_ERR, /* (2) Assertion failed */
markschwarzer 0:964d386ab059 188 FR_NOT_READY, /* (3) The physical drive cannot work */
markschwarzer 0:964d386ab059 189 FR_NO_FILE, /* (4) Could not find the file */
markschwarzer 0:964d386ab059 190 FR_NO_PATH, /* (5) Could not find the path */
markschwarzer 0:964d386ab059 191 FR_INVALID_NAME, /* (6) The path name format is invalid */
markschwarzer 0:964d386ab059 192 FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
markschwarzer 0:964d386ab059 193 FR_EXIST, /* (8) Access denied due to prohibited access */
markschwarzer 0:964d386ab059 194 FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
markschwarzer 0:964d386ab059 195 FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
markschwarzer 0:964d386ab059 196 FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
markschwarzer 0:964d386ab059 197 FR_NOT_ENABLED, /* (12) The volume has no work area */
markschwarzer 0:964d386ab059 198 FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
markschwarzer 0:964d386ab059 199 FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
markschwarzer 0:964d386ab059 200 FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
markschwarzer 0:964d386ab059 201 FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
markschwarzer 0:964d386ab059 202 FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
markschwarzer 0:964d386ab059 203 FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_LOCK */
markschwarzer 0:964d386ab059 204 FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
markschwarzer 0:964d386ab059 205 } FRESULT;
markschwarzer 0:964d386ab059 206
markschwarzer 0:964d386ab059 207
markschwarzer 0:964d386ab059 208
markschwarzer 0:964d386ab059 209 /*--------------------------------------------------------------*/
markschwarzer 0:964d386ab059 210 /* FatFs module application interface */
markschwarzer 0:964d386ab059 211
markschwarzer 0:964d386ab059 212 FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */
markschwarzer 0:964d386ab059 213 FRESULT f_close (FIL* fp); /* Close an open file object */
markschwarzer 0:964d386ab059 214 FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from a file */
markschwarzer 0:964d386ab059 215 FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to a file */
markschwarzer 0:964d386ab059 216 FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */
markschwarzer 0:964d386ab059 217 FRESULT f_lseek (FIL* fp, DWORD ofs); /* Move file pointer of a file object */
markschwarzer 0:964d386ab059 218 FRESULT f_truncate (FIL* fp); /* Truncate file */
markschwarzer 0:964d386ab059 219 FRESULT f_sync (FIL* fp); /* Flush cached data of a writing file */
markschwarzer 0:964d386ab059 220 FRESULT f_opendir (FATFS_DIR* dp, const TCHAR* path); /* Open a directory */
markschwarzer 0:964d386ab059 221 FRESULT f_closedir (FATFS_DIR* dp); /* Close an open directory */
markschwarzer 0:964d386ab059 222 FRESULT f_readdir (FATFS_DIR* dp, FILINFO* fno); /* Read a directory item */
markschwarzer 0:964d386ab059 223 FRESULT f_findfirst (FATFS_DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */
markschwarzer 0:964d386ab059 224 FRESULT f_findnext (FATFS_DIR* dp, FILINFO* fno); /* Find next file */
markschwarzer 0:964d386ab059 225 FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */
markschwarzer 0:964d386ab059 226 FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */
markschwarzer 0:964d386ab059 227 FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */
markschwarzer 0:964d386ab059 228 FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */
markschwarzer 0:964d386ab059 229 FRESULT f_chmod (const TCHAR* path, BYTE attr, BYTE mask); /* Change attribute of the file/dir */
markschwarzer 0:964d386ab059 230 FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change times-tamp of the file/dir */
markschwarzer 0:964d386ab059 231 FRESULT f_chdir (const TCHAR* path); /* Change current directory */
markschwarzer 0:964d386ab059 232 FRESULT f_chdrive (const TCHAR* path); /* Change current drive */
markschwarzer 0:964d386ab059 233 FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */
markschwarzer 0:964d386ab059 234 FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */
markschwarzer 0:964d386ab059 235 FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */
markschwarzer 0:964d386ab059 236 FRESULT f_setlabel (const TCHAR* label); /* Set volume label */
markschwarzer 0:964d386ab059 237 FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */
markschwarzer 0:964d386ab059 238 FRESULT f_mkfs (const TCHAR* path, BYTE sfd, UINT au); /* Create a file system on the volume */
markschwarzer 0:964d386ab059 239 FRESULT f_fdisk (BYTE pdrv, const DWORD szt[], void* work); /* Divide a physical drive into some partitions */
markschwarzer 0:964d386ab059 240 int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */
markschwarzer 0:964d386ab059 241 int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */
markschwarzer 0:964d386ab059 242 int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */
markschwarzer 0:964d386ab059 243 TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
markschwarzer 0:964d386ab059 244
markschwarzer 0:964d386ab059 245 #define f_eof(fp) ((int)((fp)->fptr == (fp)->fsize))
markschwarzer 0:964d386ab059 246 #define f_error(fp) ((fp)->err)
markschwarzer 0:964d386ab059 247 #define f_tell(fp) ((fp)->fptr)
markschwarzer 0:964d386ab059 248 #define f_size(fp) ((fp)->fsize)
markschwarzer 0:964d386ab059 249 #define f_rewind(fp) f_lseek((fp), 0)
markschwarzer 0:964d386ab059 250 #define f_rewinddir(dp) f_readdir((dp), 0)
markschwarzer 0:964d386ab059 251
markschwarzer 0:964d386ab059 252 #ifndef EOF
markschwarzer 0:964d386ab059 253 #define EOF (-1)
markschwarzer 0:964d386ab059 254 #endif
markschwarzer 0:964d386ab059 255
markschwarzer 0:964d386ab059 256
markschwarzer 0:964d386ab059 257
markschwarzer 0:964d386ab059 258
markschwarzer 0:964d386ab059 259 /*--------------------------------------------------------------*/
markschwarzer 0:964d386ab059 260 /* Additional user defined functions */
markschwarzer 0:964d386ab059 261
markschwarzer 0:964d386ab059 262 /* RTC function */
markschwarzer 0:964d386ab059 263 #if !_FS_READONLY && !_FS_NORTC
markschwarzer 0:964d386ab059 264 DWORD get_fattime (void);
markschwarzer 0:964d386ab059 265 #endif
markschwarzer 0:964d386ab059 266
markschwarzer 0:964d386ab059 267 /* Unicode support functions */
markschwarzer 0:964d386ab059 268 #if _USE_LFN /* Unicode - OEM code conversion */
markschwarzer 0:964d386ab059 269 WCHAR ff_convert (WCHAR chr, UINT dir); /* OEM-Unicode bidirectional conversion */
markschwarzer 0:964d386ab059 270 WCHAR ff_wtoupper (WCHAR chr); /* Unicode upper-case conversion */
markschwarzer 0:964d386ab059 271 #if _USE_LFN == 3 /* Memory functions */
markschwarzer 0:964d386ab059 272 void* ff_memalloc (UINT msize); /* Allocate memory block */
markschwarzer 0:964d386ab059 273 void ff_memfree (void* mblock); /* Free memory block */
markschwarzer 0:964d386ab059 274 #endif
markschwarzer 0:964d386ab059 275 #endif
markschwarzer 0:964d386ab059 276
markschwarzer 0:964d386ab059 277 /* Sync functions */
markschwarzer 0:964d386ab059 278 #if _FS_REENTRANT
markschwarzer 0:964d386ab059 279 int ff_cre_syncobj (BYTE vol, _SYNC_t* sobj); /* Create a sync object */
markschwarzer 0:964d386ab059 280 int ff_req_grant (_SYNC_t sobj); /* Lock sync object */
markschwarzer 0:964d386ab059 281 void ff_rel_grant (_SYNC_t sobj); /* Unlock sync object */
markschwarzer 0:964d386ab059 282 int ff_del_syncobj (_SYNC_t sobj); /* Delete a sync object */
markschwarzer 0:964d386ab059 283 #endif
markschwarzer 0:964d386ab059 284
markschwarzer 0:964d386ab059 285
markschwarzer 0:964d386ab059 286
markschwarzer 0:964d386ab059 287
markschwarzer 0:964d386ab059 288 /*--------------------------------------------------------------*/
markschwarzer 0:964d386ab059 289 /* Flags and offset address */
markschwarzer 0:964d386ab059 290
markschwarzer 0:964d386ab059 291
markschwarzer 0:964d386ab059 292 /* File access control and file status flags (FIL.flag) */
markschwarzer 0:964d386ab059 293
markschwarzer 0:964d386ab059 294 #define FA_READ 0x01
markschwarzer 0:964d386ab059 295 #define FA_OPEN_EXISTING 0x00
markschwarzer 0:964d386ab059 296
markschwarzer 0:964d386ab059 297 #if !_FS_READONLY
markschwarzer 0:964d386ab059 298 #define FA_WRITE 0x02
markschwarzer 0:964d386ab059 299 #define FA_CREATE_NEW 0x04
markschwarzer 0:964d386ab059 300 #define FA_CREATE_ALWAYS 0x08
markschwarzer 0:964d386ab059 301 #define FA_OPEN_ALWAYS 0x10
markschwarzer 0:964d386ab059 302 #define FA__WRITTEN 0x20
markschwarzer 0:964d386ab059 303 #define FA__DIRTY 0x40
markschwarzer 0:964d386ab059 304 #endif
markschwarzer 0:964d386ab059 305
markschwarzer 0:964d386ab059 306
markschwarzer 0:964d386ab059 307 /* FAT sub type (FATFS.fs_type) */
markschwarzer 0:964d386ab059 308
markschwarzer 0:964d386ab059 309 #define FS_FAT12 1
markschwarzer 0:964d386ab059 310 #define FS_FAT16 2
markschwarzer 0:964d386ab059 311 #define FS_FAT32 3
markschwarzer 0:964d386ab059 312
markschwarzer 0:964d386ab059 313
markschwarzer 0:964d386ab059 314 /* File attribute bits for directory entry */
markschwarzer 0:964d386ab059 315
markschwarzer 0:964d386ab059 316 #define AM_RDO 0x01 /* Read only */
markschwarzer 0:964d386ab059 317 #define AM_HID 0x02 /* Hidden */
markschwarzer 0:964d386ab059 318 #define AM_SYS 0x04 /* System */
markschwarzer 0:964d386ab059 319 #define AM_VOL 0x08 /* Volume label */
markschwarzer 0:964d386ab059 320 #define AM_LFN 0x0F /* LFN entry */
markschwarzer 0:964d386ab059 321 #define AM_DIR 0x10 /* Directory */
markschwarzer 0:964d386ab059 322 #define AM_ARC 0x20 /* Archive */
markschwarzer 0:964d386ab059 323 #define AM_MASK 0x3F /* Mask of defined bits */
markschwarzer 0:964d386ab059 324
markschwarzer 0:964d386ab059 325
markschwarzer 0:964d386ab059 326 /* Fast seek feature */
markschwarzer 0:964d386ab059 327 #define CREATE_LINKMAP 0xFFFFFFFF
markschwarzer 0:964d386ab059 328
markschwarzer 0:964d386ab059 329
markschwarzer 0:964d386ab059 330
markschwarzer 0:964d386ab059 331 /*--------------------------------*/
markschwarzer 0:964d386ab059 332 /* Multi-byte word access macros */
markschwarzer 0:964d386ab059 333
markschwarzer 0:964d386ab059 334 #if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
markschwarzer 0:964d386ab059 335 #define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
markschwarzer 0:964d386ab059 336 #define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
markschwarzer 0:964d386ab059 337 #define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
markschwarzer 0:964d386ab059 338 #define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
markschwarzer 0:964d386ab059 339 #else /* Use byte-by-byte access to the FAT structure */
markschwarzer 0:964d386ab059 340 #define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
markschwarzer 0:964d386ab059 341 #define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
markschwarzer 0:964d386ab059 342 #define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
markschwarzer 0:964d386ab059 343 #define ST_DWORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8); *((BYTE*)(ptr)+2)=(BYTE)((DWORD)(val)>>16); *((BYTE*)(ptr)+3)=(BYTE)((DWORD)(val)>>24)
markschwarzer 0:964d386ab059 344 #endif
markschwarzer 0:964d386ab059 345
markschwarzer 0:964d386ab059 346 #ifdef __cplusplus
markschwarzer 0:964d386ab059 347 }
markschwarzer 0:964d386ab059 348 #endif
markschwarzer 0:964d386ab059 349
markschwarzer 0:964d386ab059 350 #endif /* _FATFS */