erkin yucel / mbed-os

mbed os with nrf51 internal bandgap enabled to read battery level

Dependents:   BLE_file_test BLE_Blink ExternalEncoder

features/unsupported/fs/fat/ChaN/ff.h@0:f269e3021894, 2016-10-23 (annotated)

Committer:
elessair
Date:
Sun Oct 23 15:10:02 2016 +0000
Revision:
0:f269e3021894
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:f269e3021894 1 /*---------------------------------------------------------------------------/
elessair 0:f269e3021894 2 / FatFs - FAT file system module include R0.11a (C)ChaN, 2015
elessair 0:f269e3021894 3 /----------------------------------------------------------------------------/
elessair 0:f269e3021894 4 / FatFs module is a free software that opened under license policy of
elessair 0:f269e3021894 5 / following conditions.
elessair 0:f269e3021894 6 /
elessair 0:f269e3021894 7 / Copyright (C) 2015, ChaN, all right reserved.
elessair 0:f269e3021894 8 /
elessair 0:f269e3021894 9 / 1. Redistributions of source code must retain the above copyright notice,
elessair 0:f269e3021894 10 / this condition and the following disclaimer.
elessair 0:f269e3021894 11 /
elessair 0:f269e3021894 12 / This software is provided by the copyright holder and contributors "AS IS"
elessair 0:f269e3021894 13 / and any warranties related to this software are DISCLAIMED.
elessair 0:f269e3021894 14 / The copyright owner or contributors be NOT LIABLE for any damages caused
elessair 0:f269e3021894 15 / by use of this software.
elessair 0:f269e3021894 16 /---------------------------------------------------------------------------*/
elessair 0:f269e3021894 17
elessair 0:f269e3021894 18
elessair 0:f269e3021894 19 #ifndef _FATFS
elessair 0:f269e3021894 20 #define _FATFS 64180 /* Revision ID */
elessair 0:f269e3021894 21
elessair 0:f269e3021894 22 #ifdef __cplusplus
elessair 0:f269e3021894 23 extern "C" {
elessair 0:f269e3021894 24 #endif
elessair 0:f269e3021894 25
elessair 0:f269e3021894 26 #include "integer.h" /* Basic integer types */
elessair 0:f269e3021894 27 #include "ffconf.h" /* FatFs configuration options */
elessair 0:f269e3021894 28 #if _FATFS != _FFCONF
elessair 0:f269e3021894 29 #error Wrong configuration file (ffconf.h).
elessair 0:f269e3021894 30 #endif
elessair 0:f269e3021894 31
elessair 0:f269e3021894 32
elessair 0:f269e3021894 33
elessair 0:f269e3021894 34 /* Definitions of volume management */
elessair 0:f269e3021894 35
elessair 0:f269e3021894 36 #if _MULTI_PARTITION /* Multiple partition configuration */
elessair 0:f269e3021894 37 typedef struct {
elessair 0:f269e3021894 38 BYTE pd; /* Physical drive number */
elessair 0:f269e3021894 39 BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
elessair 0:f269e3021894 40 } PARTITION;
elessair 0:f269e3021894 41 extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
elessair 0:f269e3021894 42 #define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
elessair 0:f269e3021894 43 #define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
elessair 0:f269e3021894 44
elessair 0:f269e3021894 45 #else /* Single partition configuration */
elessair 0:f269e3021894 46 #define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
elessair 0:f269e3021894 47 #define LD2PT(vol) 0 /* Find first valid partition or in SFD */
elessair 0:f269e3021894 48
elessair 0:f269e3021894 49 #endif
elessair 0:f269e3021894 50
elessair 0:f269e3021894 51
elessair 0:f269e3021894 52
elessair 0:f269e3021894 53 /* Type of path name strings on FatFs API */
elessair 0:f269e3021894 54
elessair 0:f269e3021894 55 #if _LFN_UNICODE /* Unicode string */
elessair 0:f269e3021894 56 #if !_USE_LFN
elessair 0:f269e3021894 57 #error _LFN_UNICODE must be 0 at non-LFN cfg.
elessair 0:f269e3021894 58 #endif
elessair 0:f269e3021894 59 #ifndef _INC_TCHAR
elessair 0:f269e3021894 60 typedef WCHAR TCHAR;
elessair 0:f269e3021894 61 #define _T(x) L ## x
elessair 0:f269e3021894 62 #define _TEXT(x) L ## x
elessair 0:f269e3021894 63 #endif
elessair 0:f269e3021894 64
elessair 0:f269e3021894 65 #else /* ANSI/OEM string */
elessair 0:f269e3021894 66 #ifndef _INC_TCHAR
elessair 0:f269e3021894 67 typedef char TCHAR;
elessair 0:f269e3021894 68 #define _T(x) x
elessair 0:f269e3021894 69 #define _TEXT(x) x
elessair 0:f269e3021894 70 #endif
elessair 0:f269e3021894 71
elessair 0:f269e3021894 72 #endif
elessair 0:f269e3021894 73
elessair 0:f269e3021894 74
elessair 0:f269e3021894 75
elessair 0:f269e3021894 76 /* File system object structure (FATFS) */
elessair 0:f269e3021894 77
elessair 0:f269e3021894 78 typedef struct {
elessair 0:f269e3021894 79 BYTE fs_type; /* FAT sub-type (0:Not mounted) */
elessair 0:f269e3021894 80 BYTE drv; /* Physical drive number */
elessair 0:f269e3021894 81 BYTE csize; /* Sectors per cluster (1,2,4...128) */
elessair 0:f269e3021894 82 BYTE n_fats; /* Number of FAT copies (1 or 2) */
elessair 0:f269e3021894 83 BYTE wflag; /* win[] flag (b0:dirty) */
elessair 0:f269e3021894 84 BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */
elessair 0:f269e3021894 85 WORD id; /* File system mount ID */
elessair 0:f269e3021894 86 WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
elessair 0:f269e3021894 87 #if _MAX_SS != _MIN_SS
elessair 0:f269e3021894 88 WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
elessair 0:f269e3021894 89 #endif
elessair 0:f269e3021894 90 #if _FS_REENTRANT
elessair 0:f269e3021894 91 _SYNC_t sobj; /* Identifier of sync object */
elessair 0:f269e3021894 92 #endif
elessair 0:f269e3021894 93 #if !_FS_READONLY
elessair 0:f269e3021894 94 DWORD last_clust; /* Last allocated cluster */
elessair 0:f269e3021894 95 DWORD free_clust; /* Number of free clusters */
elessair 0:f269e3021894 96 #endif
elessair 0:f269e3021894 97 #if _FS_RPATH
elessair 0:f269e3021894 98 DWORD cdir; /* Current directory start cluster (0:root) */
elessair 0:f269e3021894 99 #endif
elessair 0:f269e3021894 100 DWORD n_fatent; /* Number of FAT entries, = number of clusters + 2 */
elessair 0:f269e3021894 101 DWORD fsize; /* Sectors per FAT */
elessair 0:f269e3021894 102 DWORD volbase; /* Volume start sector */
elessair 0:f269e3021894 103 DWORD fatbase; /* FAT start sector */
elessair 0:f269e3021894 104 DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
elessair 0:f269e3021894 105 DWORD database; /* Data start sector */
elessair 0:f269e3021894 106 DWORD winsect; /* Current sector appearing in the win[] */
elessair 0:f269e3021894 107 BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */
elessair 0:f269e3021894 108 } FATFS;
elessair 0:f269e3021894 109
elessair 0:f269e3021894 110
elessair 0:f269e3021894 111
elessair 0:f269e3021894 112 /* File object structure (FIL) */
elessair 0:f269e3021894 113
elessair 0:f269e3021894 114 typedef struct {
elessair 0:f269e3021894 115 FATFS* fs; /* Pointer to the related file system object (**do not change order**) */
elessair 0:f269e3021894 116 WORD id; /* Owner file system mount ID (**do not change order**) */
elessair 0:f269e3021894 117 BYTE flag; /* Status flags */
elessair 0:f269e3021894 118 BYTE err; /* Abort flag (error code) */
elessair 0:f269e3021894 119 DWORD fptr; /* File read/write pointer (Zeroed on file open) */
elessair 0:f269e3021894 120 DWORD fsize; /* File size */
elessair 0:f269e3021894 121 DWORD sclust; /* File start cluster (0:no cluster chain, always 0 when fsize is 0) */
elessair 0:f269e3021894 122 DWORD clust; /* Current cluster of fpter (not valid when fprt is 0) */
elessair 0:f269e3021894 123 DWORD dsect; /* Sector number appearing in buf[] (0:invalid) */
elessair 0:f269e3021894 124 #if !_FS_READONLY
elessair 0:f269e3021894 125 DWORD dir_sect; /* Sector number containing the directory entry */
elessair 0:f269e3021894 126 BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */
elessair 0:f269e3021894 127 #endif
elessair 0:f269e3021894 128 #if _USE_FASTSEEK
elessair 0:f269e3021894 129 DWORD* cltbl; /* Pointer to the cluster link map table (Nulled on file open) */
elessair 0:f269e3021894 130 #endif
elessair 0:f269e3021894 131 #if _FS_LOCK
elessair 0:f269e3021894 132 UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */
elessair 0:f269e3021894 133 #endif
elessair 0:f269e3021894 134 #if !_FS_TINY
elessair 0:f269e3021894 135 BYTE buf[_MAX_SS]; /* File private data read/write window */
elessair 0:f269e3021894 136 #endif
elessair 0:f269e3021894 137 } FIL;
elessair 0:f269e3021894 138
elessair 0:f269e3021894 139
elessair 0:f269e3021894 140
elessair 0:f269e3021894 141 /* Directory object structure (FATFS_DIR) */
elessair 0:f269e3021894 142
elessair 0:f269e3021894 143 typedef struct {
elessair 0:f269e3021894 144 FATFS* fs; /* Pointer to the owner file system object (**do not change order**) */
elessair 0:f269e3021894 145 WORD id; /* Owner file system mount ID (**do not change order**) */
elessair 0:f269e3021894 146 WORD index; /* Current read/write index number */
elessair 0:f269e3021894 147 DWORD sclust; /* Table start cluster (0:Root dir) */
elessair 0:f269e3021894 148 DWORD clust; /* Current cluster */
elessair 0:f269e3021894 149 DWORD sect; /* Current sector */
elessair 0:f269e3021894 150 BYTE* dir; /* Pointer to the current SFN entry in the win[] */
elessair 0:f269e3021894 151 BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
elessair 0:f269e3021894 152 #if _FS_LOCK
elessair 0:f269e3021894 153 UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
elessair 0:f269e3021894 154 #endif
elessair 0:f269e3021894 155 #if _USE_LFN
elessair 0:f269e3021894 156 WCHAR* lfn; /* Pointer to the LFN working buffer */
elessair 0:f269e3021894 157 WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
elessair 0:f269e3021894 158 #endif
elessair 0:f269e3021894 159 #if _USE_FIND
elessair 0:f269e3021894 160 const TCHAR* pat; /* Pointer to the name matching pattern */
elessair 0:f269e3021894 161 #endif
elessair 0:f269e3021894 162 } FATFS_DIR;
elessair 0:f269e3021894 163
elessair 0:f269e3021894 164
elessair 0:f269e3021894 165
elessair 0:f269e3021894 166 /* File information structure (FILINFO) */
elessair 0:f269e3021894 167
elessair 0:f269e3021894 168 typedef struct {
elessair 0:f269e3021894 169 DWORD fsize; /* File size */
elessair 0:f269e3021894 170 WORD fdate; /* Last modified date */
elessair 0:f269e3021894 171 WORD ftime; /* Last modified time */
elessair 0:f269e3021894 172 BYTE fattrib; /* Attribute */
elessair 0:f269e3021894 173 TCHAR fname[13]; /* Short file name (8.3 format) */
elessair 0:f269e3021894 174 #if _USE_LFN
elessair 0:f269e3021894 175 TCHAR* lfname; /* Pointer to the LFN buffer */
elessair 0:f269e3021894 176 UINT lfsize; /* Size of LFN buffer in TCHAR */
elessair 0:f269e3021894 177 #endif
elessair 0:f269e3021894 178 } FILINFO;
elessair 0:f269e3021894 179
elessair 0:f269e3021894 180
elessair 0:f269e3021894 181
elessair 0:f269e3021894 182 /* File function return code (FRESULT) */
elessair 0:f269e3021894 183
elessair 0:f269e3021894 184 typedef enum {
elessair 0:f269e3021894 185 FR_OK = 0, /* (0) Succeeded */
elessair 0:f269e3021894 186 FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
elessair 0:f269e3021894 187 FR_INT_ERR, /* (2) Assertion failed */
elessair 0:f269e3021894 188 FR_NOT_READY, /* (3) The physical drive cannot work */
elessair 0:f269e3021894 189 FR_NO_FILE, /* (4) Could not find the file */
elessair 0:f269e3021894 190 FR_NO_PATH, /* (5) Could not find the path */
elessair 0:f269e3021894 191 FR_INVALID_NAME, /* (6) The path name format is invalid */
elessair 0:f269e3021894 192 FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
elessair 0:f269e3021894 193 FR_EXIST, /* (8) Access denied due to prohibited access */
elessair 0:f269e3021894 194 FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
elessair 0:f269e3021894 195 FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
elessair 0:f269e3021894 196 FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
elessair 0:f269e3021894 197 FR_NOT_ENABLED, /* (12) The volume has no work area */
elessair 0:f269e3021894 198 FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
elessair 0:f269e3021894 199 FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
elessair 0:f269e3021894 200 FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
elessair 0:f269e3021894 201 FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
elessair 0:f269e3021894 202 FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
elessair 0:f269e3021894 203 FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_LOCK */
elessair 0:f269e3021894 204 FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
elessair 0:f269e3021894 205 } FRESULT;
elessair 0:f269e3021894 206
elessair 0:f269e3021894 207
elessair 0:f269e3021894 208
elessair 0:f269e3021894 209 /*--------------------------------------------------------------*/
elessair 0:f269e3021894 210 /* FatFs module application interface */
elessair 0:f269e3021894 211
elessair 0:f269e3021894 212 FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */
elessair 0:f269e3021894 213 FRESULT f_close (FIL* fp); /* Close an open file object */
elessair 0:f269e3021894 214 FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from a file */
elessair 0:f269e3021894 215 FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to a file */
elessair 0:f269e3021894 216 FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */
elessair 0:f269e3021894 217 FRESULT f_lseek (FIL* fp, DWORD ofs); /* Move file pointer of a file object */
elessair 0:f269e3021894 218 FRESULT f_truncate (FIL* fp); /* Truncate file */
elessair 0:f269e3021894 219 FRESULT f_sync (FIL* fp); /* Flush cached data of a writing file */
elessair 0:f269e3021894 220 FRESULT f_opendir (FATFS_DIR* dp, const TCHAR* path); /* Open a directory */
elessair 0:f269e3021894 221 FRESULT f_closedir (FATFS_DIR* dp); /* Close an open directory */
elessair 0:f269e3021894 222 FRESULT f_readdir (FATFS_DIR* dp, FILINFO* fno); /* Read a directory item */
elessair 0:f269e3021894 223 FRESULT f_findfirst (FATFS_DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */
elessair 0:f269e3021894 224 FRESULT f_findnext (FATFS_DIR* dp, FILINFO* fno); /* Find next file */
elessair 0:f269e3021894 225 FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */
elessair 0:f269e3021894 226 FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */
elessair 0:f269e3021894 227 FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */
elessair 0:f269e3021894 228 FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */
elessair 0:f269e3021894 229 FRESULT f_chmod (const TCHAR* path, BYTE attr, BYTE mask); /* Change attribute of the file/dir */
elessair 0:f269e3021894 230 FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change times-tamp of the file/dir */
elessair 0:f269e3021894 231 FRESULT f_chdir (const TCHAR* path); /* Change current directory */
elessair 0:f269e3021894 232 FRESULT f_chdrive (const TCHAR* path); /* Change current drive */
elessair 0:f269e3021894 233 FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */
elessair 0:f269e3021894 234 FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */
elessair 0:f269e3021894 235 FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */
elessair 0:f269e3021894 236 FRESULT f_setlabel (const TCHAR* label); /* Set volume label */
elessair 0:f269e3021894 237 FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */
elessair 0:f269e3021894 238 FRESULT f_mkfs (const TCHAR* path, BYTE sfd, UINT au); /* Create a file system on the volume */
elessair 0:f269e3021894 239 FRESULT f_fdisk (BYTE pdrv, const DWORD szt[], void* work); /* Divide a physical drive into some partitions */
elessair 0:f269e3021894 240 int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */
elessair 0:f269e3021894 241 int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */
elessair 0:f269e3021894 242 int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */
elessair 0:f269e3021894 243 TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
elessair 0:f269e3021894 244
elessair 0:f269e3021894 245 #define f_eof(fp) ((int)((fp)->fptr == (fp)->fsize))
elessair 0:f269e3021894 246 #define f_error(fp) ((fp)->err)
elessair 0:f269e3021894 247 #define f_tell(fp) ((fp)->fptr)
elessair 0:f269e3021894 248 #define f_size(fp) ((fp)->fsize)
elessair 0:f269e3021894 249 #define f_rewind(fp) f_lseek((fp), 0)
elessair 0:f269e3021894 250 #define f_rewinddir(dp) f_readdir((dp), 0)
elessair 0:f269e3021894 251
elessair 0:f269e3021894 252 #ifndef EOF
elessair 0:f269e3021894 253 #define EOF (-1)
elessair 0:f269e3021894 254 #endif
elessair 0:f269e3021894 255
elessair 0:f269e3021894 256
elessair 0:f269e3021894 257
elessair 0:f269e3021894 258
elessair 0:f269e3021894 259 /*--------------------------------------------------------------*/
elessair 0:f269e3021894 260 /* Additional user defined functions */
elessair 0:f269e3021894 261
elessair 0:f269e3021894 262 /* RTC function */
elessair 0:f269e3021894 263 #if !_FS_READONLY && !_FS_NORTC
elessair 0:f269e3021894 264 DWORD get_fattime (void);
elessair 0:f269e3021894 265 #endif
elessair 0:f269e3021894 266
elessair 0:f269e3021894 267 /* Unicode support functions */
elessair 0:f269e3021894 268 #if _USE_LFN /* Unicode - OEM code conversion */
elessair 0:f269e3021894 269 WCHAR ff_convert (WCHAR chr, UINT dir); /* OEM-Unicode bidirectional conversion */
elessair 0:f269e3021894 270 WCHAR ff_wtoupper (WCHAR chr); /* Unicode upper-case conversion */
elessair 0:f269e3021894 271 #if _USE_LFN == 3 /* Memory functions */
elessair 0:f269e3021894 272 void* ff_memalloc (UINT msize); /* Allocate memory block */
elessair 0:f269e3021894 273 void ff_memfree (void* mblock); /* Free memory block */
elessair 0:f269e3021894 274 #endif
elessair 0:f269e3021894 275 #endif
elessair 0:f269e3021894 276
elessair 0:f269e3021894 277 /* Sync functions */
elessair 0:f269e3021894 278 #if _FS_REENTRANT
elessair 0:f269e3021894 279 int ff_cre_syncobj (BYTE vol, _SYNC_t* sobj); /* Create a sync object */
elessair 0:f269e3021894 280 int ff_req_grant (_SYNC_t sobj); /* Lock sync object */
elessair 0:f269e3021894 281 void ff_rel_grant (_SYNC_t sobj); /* Unlock sync object */
elessair 0:f269e3021894 282 int ff_del_syncobj (_SYNC_t sobj); /* Delete a sync object */
elessair 0:f269e3021894 283 #endif
elessair 0:f269e3021894 284
elessair 0:f269e3021894 285
elessair 0:f269e3021894 286
elessair 0:f269e3021894 287
elessair 0:f269e3021894 288 /*--------------------------------------------------------------*/
elessair 0:f269e3021894 289 /* Flags and offset address */
elessair 0:f269e3021894 290
elessair 0:f269e3021894 291
elessair 0:f269e3021894 292 /* File access control and file status flags (FIL.flag) */
elessair 0:f269e3021894 293
elessair 0:f269e3021894 294 #define FA_READ 0x01
elessair 0:f269e3021894 295 #define FA_OPEN_EXISTING 0x00
elessair 0:f269e3021894 296
elessair 0:f269e3021894 297 #if !_FS_READONLY
elessair 0:f269e3021894 298 #define FA_WRITE 0x02
elessair 0:f269e3021894 299 #define FA_CREATE_NEW 0x04
elessair 0:f269e3021894 300 #define FA_CREATE_ALWAYS 0x08
elessair 0:f269e3021894 301 #define FA_OPEN_ALWAYS 0x10
elessair 0:f269e3021894 302 #define FA__WRITTEN 0x20
elessair 0:f269e3021894 303 #define FA__DIRTY 0x40
elessair 0:f269e3021894 304 #endif
elessair 0:f269e3021894 305
elessair 0:f269e3021894 306
elessair 0:f269e3021894 307 /* FAT sub type (FATFS.fs_type) */
elessair 0:f269e3021894 308
elessair 0:f269e3021894 309 #define FS_FAT12 1
elessair 0:f269e3021894 310 #define FS_FAT16 2
elessair 0:f269e3021894 311 #define FS_FAT32 3
elessair 0:f269e3021894 312
elessair 0:f269e3021894 313
elessair 0:f269e3021894 314 /* File attribute bits for directory entry */
elessair 0:f269e3021894 315
elessair 0:f269e3021894 316 #define AM_RDO 0x01 /* Read only */
elessair 0:f269e3021894 317 #define AM_HID 0x02 /* Hidden */
elessair 0:f269e3021894 318 #define AM_SYS 0x04 /* System */
elessair 0:f269e3021894 319 #define AM_VOL 0x08 /* Volume label */
elessair 0:f269e3021894 320 #define AM_LFN 0x0F /* LFN entry */
elessair 0:f269e3021894 321 #define AM_DIR 0x10 /* Directory */
elessair 0:f269e3021894 322 #define AM_ARC 0x20 /* Archive */
elessair 0:f269e3021894 323 #define AM_MASK 0x3F /* Mask of defined bits */
elessair 0:f269e3021894 324
elessair 0:f269e3021894 325
elessair 0:f269e3021894 326 /* Fast seek feature */
elessair 0:f269e3021894 327 #define CREATE_LINKMAP 0xFFFFFFFF
elessair 0:f269e3021894 328
elessair 0:f269e3021894 329
elessair 0:f269e3021894 330
elessair 0:f269e3021894 331 /*--------------------------------*/
elessair 0:f269e3021894 332 /* Multi-byte word access macros */
elessair 0:f269e3021894 333
elessair 0:f269e3021894 334 #if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
elessair 0:f269e3021894 335 #define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
elessair 0:f269e3021894 336 #define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
elessair 0:f269e3021894 337 #define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
elessair 0:f269e3021894 338 #define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
elessair 0:f269e3021894 339 #else /* Use byte-by-byte access to the FAT structure */
elessair 0:f269e3021894 340 #define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
elessair 0:f269e3021894 341 #define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
elessair 0:f269e3021894 342 #define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
elessair 0:f269e3021894 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)
elessair 0:f269e3021894 344 #endif
elessair 0:f269e3021894 345
elessair 0:f269e3021894 346 #ifdef __cplusplus
elessair 0:f269e3021894 347 }
elessair 0:f269e3021894 348 #endif
elessair 0:f269e3021894 349
elessair 0:f269e3021894 350 #endif /* _FATFS */