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SDFileSystem/FATFileSystem/ChaN/ff.h@1:10330bce85cb, 2020-10-23 (annotated)

Committer:
DCchico
Date:
Fri Oct 23 16:18:39 2020 -0400
Revision:
1:10330bce85cb
shell-code

Who changed what in which revision?

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DCchico 1:10330bce85cb 1 /*---------------------------------------------------------------------------/
DCchico 1:10330bce85cb 2 / FatFs - FAT file system module include file R0.09a (C)ChaN, 2012
DCchico 1:10330bce85cb 3 /----------------------------------------------------------------------------/
DCchico 1:10330bce85cb 4 / FatFs module is a generic FAT file system module for small embedded systems.
DCchico 1:10330bce85cb 5 / This is a free software that opened for education, research and commercial
DCchico 1:10330bce85cb 6 / developments under license policy of following terms.
DCchico 1:10330bce85cb 7 /
DCchico 1:10330bce85cb 8 / Copyright (C) 2012, ChaN, all right reserved.
DCchico 1:10330bce85cb 9 /
DCchico 1:10330bce85cb 10 / * The FatFs module is a free software and there is NO WARRANTY.
DCchico 1:10330bce85cb 11 / * No restriction on use. You can use, modify and redistribute it for
DCchico 1:10330bce85cb 12 / personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY.
DCchico 1:10330bce85cb 13 / * Redistributions of source code must retain the above copyright notice.
DCchico 1:10330bce85cb 14 /
DCchico 1:10330bce85cb 15 /----------------------------------------------------------------------------*/
DCchico 1:10330bce85cb 16
DCchico 1:10330bce85cb 17 #ifndef _FATFS
DCchico 1:10330bce85cb 18 #define _FATFS 4004 /* Revision ID */
DCchico 1:10330bce85cb 19
DCchico 1:10330bce85cb 20 #ifdef __cplusplus
DCchico 1:10330bce85cb 21 extern "C" {
DCchico 1:10330bce85cb 22 #endif
DCchico 1:10330bce85cb 23
DCchico 1:10330bce85cb 24 #include "integer.h" /* Basic integer types */
DCchico 1:10330bce85cb 25 #include "ffconf.h" /* FatFs configuration options */
DCchico 1:10330bce85cb 26
DCchico 1:10330bce85cb 27 #if _FATFS != _FFCONF
DCchico 1:10330bce85cb 28 #error Wrong configuration file (ffconf.h).
DCchico 1:10330bce85cb 29 #endif
DCchico 1:10330bce85cb 30
DCchico 1:10330bce85cb 31
DCchico 1:10330bce85cb 32
DCchico 1:10330bce85cb 33 /* Definitions of volume management */
DCchico 1:10330bce85cb 34
DCchico 1:10330bce85cb 35 #if _MULTI_PARTITION /* Multiple partition configuration */
DCchico 1:10330bce85cb 36 typedef struct {
DCchico 1:10330bce85cb 37 BYTE pd; /* Physical drive number */
DCchico 1:10330bce85cb 38 BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
DCchico 1:10330bce85cb 39 } PARTITION;
DCchico 1:10330bce85cb 40 extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
DCchico 1:10330bce85cb 41 #define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
DCchico 1:10330bce85cb 42 #define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
DCchico 1:10330bce85cb 43
DCchico 1:10330bce85cb 44 #else /* Single partition configuration */
DCchico 1:10330bce85cb 45 #define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
DCchico 1:10330bce85cb 46 #define LD2PT(vol) 0 /* Always mounts the 1st partition or in SFD */
DCchico 1:10330bce85cb 47
DCchico 1:10330bce85cb 48 #endif
DCchico 1:10330bce85cb 49
DCchico 1:10330bce85cb 50
DCchico 1:10330bce85cb 51
DCchico 1:10330bce85cb 52 /* Type of path name strings on FatFs API */
DCchico 1:10330bce85cb 53
DCchico 1:10330bce85cb 54 #if _LFN_UNICODE /* Unicode string */
DCchico 1:10330bce85cb 55 #if !_USE_LFN
DCchico 1:10330bce85cb 56 #error _LFN_UNICODE must be 0 in non-LFN cfg.
DCchico 1:10330bce85cb 57 #endif
DCchico 1:10330bce85cb 58 #ifndef _INC_TCHAR
DCchico 1:10330bce85cb 59 typedef WCHAR TCHAR;
DCchico 1:10330bce85cb 60 #define _T(x) L ## x
DCchico 1:10330bce85cb 61 #define _TEXT(x) L ## x
DCchico 1:10330bce85cb 62 #endif
DCchico 1:10330bce85cb 63
DCchico 1:10330bce85cb 64 #else /* ANSI/OEM string */
DCchico 1:10330bce85cb 65 #ifndef _INC_TCHAR
DCchico 1:10330bce85cb 66 typedef char TCHAR;
DCchico 1:10330bce85cb 67 #define _T(x) x
DCchico 1:10330bce85cb 68 #define _TEXT(x) x
DCchico 1:10330bce85cb 69 #endif
DCchico 1:10330bce85cb 70
DCchico 1:10330bce85cb 71 #endif
DCchico 1:10330bce85cb 72
DCchico 1:10330bce85cb 73
DCchico 1:10330bce85cb 74
DCchico 1:10330bce85cb 75 /* File system object structure (FATFS) */
DCchico 1:10330bce85cb 76
DCchico 1:10330bce85cb 77 typedef struct {
DCchico 1:10330bce85cb 78 BYTE fs_type; /* FAT sub-type (0:Not mounted) */
DCchico 1:10330bce85cb 79 BYTE drv; /* Physical drive number */
DCchico 1:10330bce85cb 80 BYTE csize; /* Sectors per cluster (1,2,4...128) */
DCchico 1:10330bce85cb 81 BYTE n_fats; /* Number of FAT copies (1,2) */
DCchico 1:10330bce85cb 82 BYTE wflag; /* win[] dirty flag (1:must be written back) */
DCchico 1:10330bce85cb 83 BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */
DCchico 1:10330bce85cb 84 WORD id; /* File system mount ID */
DCchico 1:10330bce85cb 85 WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
DCchico 1:10330bce85cb 86 #if _MAX_SS != 512
DCchico 1:10330bce85cb 87 WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
DCchico 1:10330bce85cb 88 #endif
DCchico 1:10330bce85cb 89 #if _FS_REENTRANT
DCchico 1:10330bce85cb 90 _SYNC_t sobj; /* Identifier of sync object */
DCchico 1:10330bce85cb 91 #endif
DCchico 1:10330bce85cb 92 #if !_FS_READONLY
DCchico 1:10330bce85cb 93 DWORD last_clust; /* Last allocated cluster */
DCchico 1:10330bce85cb 94 DWORD free_clust; /* Number of free clusters */
DCchico 1:10330bce85cb 95 DWORD fsi_sector; /* fsinfo sector (FAT32) */
DCchico 1:10330bce85cb 96 #endif
DCchico 1:10330bce85cb 97 #if _FS_RPATH
DCchico 1:10330bce85cb 98 DWORD cdir; /* Current directory start cluster (0:root) */
DCchico 1:10330bce85cb 99 #endif
DCchico 1:10330bce85cb 100 DWORD n_fatent; /* Number of FAT entries (= number of clusters + 2) */
DCchico 1:10330bce85cb 101 DWORD fsize; /* Sectors per FAT */
DCchico 1:10330bce85cb 102 DWORD fatbase; /* FAT start sector */
DCchico 1:10330bce85cb 103 DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
DCchico 1:10330bce85cb 104 DWORD database; /* Data start sector */
DCchico 1:10330bce85cb 105 DWORD winsect; /* Current sector appearing in the win[] */
DCchico 1:10330bce85cb 106 BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and Data on tiny cfg) */
DCchico 1:10330bce85cb 107 } FATFS;
DCchico 1:10330bce85cb 108
DCchico 1:10330bce85cb 109
DCchico 1:10330bce85cb 110
DCchico 1:10330bce85cb 111 /* File object structure (FIL) */
DCchico 1:10330bce85cb 112
DCchico 1:10330bce85cb 113 typedef struct {
DCchico 1:10330bce85cb 114 FATFS* fs; /* Pointer to the related file system object */
DCchico 1:10330bce85cb 115 WORD id; /* File system mount ID of the related file system object */
DCchico 1:10330bce85cb 116 BYTE flag; /* File status flags */
DCchico 1:10330bce85cb 117 BYTE pad1;
DCchico 1:10330bce85cb 118 DWORD fptr; /* File read/write pointer (0ed on file open) */
DCchico 1:10330bce85cb 119 DWORD fsize; /* File size */
DCchico 1:10330bce85cb 120 DWORD sclust; /* File data start cluster (0:no data cluster, always 0 when fsize is 0) */
DCchico 1:10330bce85cb 121 DWORD clust; /* Current cluster of fpter */
DCchico 1:10330bce85cb 122 DWORD dsect; /* Current data sector of fpter */
DCchico 1:10330bce85cb 123 #if !_FS_READONLY
DCchico 1:10330bce85cb 124 DWORD dir_sect; /* Sector containing the directory entry */
DCchico 1:10330bce85cb 125 BYTE* dir_ptr; /* Pointer to the directory entry in the window */
DCchico 1:10330bce85cb 126 #endif
DCchico 1:10330bce85cb 127 #if _USE_FASTSEEK
DCchico 1:10330bce85cb 128 DWORD* cltbl; /* Pointer to the cluster link map table (null on file open) */
DCchico 1:10330bce85cb 129 #endif
DCchico 1:10330bce85cb 130 #if _FS_LOCK
DCchico 1:10330bce85cb 131 UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
DCchico 1:10330bce85cb 132 #endif
DCchico 1:10330bce85cb 133 #if !_FS_TINY
DCchico 1:10330bce85cb 134 BYTE buf[_MAX_SS]; /* File data read/write buffer */
DCchico 1:10330bce85cb 135 #endif
DCchico 1:10330bce85cb 136 } FIL;
DCchico 1:10330bce85cb 137
DCchico 1:10330bce85cb 138
DCchico 1:10330bce85cb 139
DCchico 1:10330bce85cb 140 /* Directory object structure (DIR) */
DCchico 1:10330bce85cb 141
DCchico 1:10330bce85cb 142 typedef struct {
DCchico 1:10330bce85cb 143 FATFS* fs; /* Pointer to the owner file system object */
DCchico 1:10330bce85cb 144 WORD id; /* Owner file system mount ID */
DCchico 1:10330bce85cb 145 WORD index; /* Current read/write index number */
DCchico 1:10330bce85cb 146 DWORD sclust; /* Table start cluster (0:Root dir) */
DCchico 1:10330bce85cb 147 DWORD clust; /* Current cluster */
DCchico 1:10330bce85cb 148 DWORD sect; /* Current sector */
DCchico 1:10330bce85cb 149 BYTE* dir; /* Pointer to the current SFN entry in the win[] */
DCchico 1:10330bce85cb 150 BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
DCchico 1:10330bce85cb 151 #if _USE_LFN
DCchico 1:10330bce85cb 152 WCHAR* lfn; /* Pointer to the LFN working buffer */
DCchico 1:10330bce85cb 153 WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
DCchico 1:10330bce85cb 154 #endif
DCchico 1:10330bce85cb 155 } FATFS_DIR;
DCchico 1:10330bce85cb 156
DCchico 1:10330bce85cb 157
DCchico 1:10330bce85cb 158
DCchico 1:10330bce85cb 159 /* File status structure (FILINFO) */
DCchico 1:10330bce85cb 160
DCchico 1:10330bce85cb 161 typedef struct {
DCchico 1:10330bce85cb 162 DWORD fsize; /* File size */
DCchico 1:10330bce85cb 163 WORD fdate; /* Last modified date */
DCchico 1:10330bce85cb 164 WORD ftime; /* Last modified time */
DCchico 1:10330bce85cb 165 BYTE fattrib; /* Attribute */
DCchico 1:10330bce85cb 166 TCHAR fname[13]; /* Short file name (8.3 format) */
DCchico 1:10330bce85cb 167 #if _USE_LFN
DCchico 1:10330bce85cb 168 TCHAR* lfname; /* Pointer to the LFN buffer */
DCchico 1:10330bce85cb 169 UINT lfsize; /* Size of LFN buffer in TCHAR */
DCchico 1:10330bce85cb 170 #endif
DCchico 1:10330bce85cb 171 } FILINFO;
DCchico 1:10330bce85cb 172
DCchico 1:10330bce85cb 173
DCchico 1:10330bce85cb 174
DCchico 1:10330bce85cb 175 /* File function return code (FRESULT) */
DCchico 1:10330bce85cb 176
DCchico 1:10330bce85cb 177 typedef enum {
DCchico 1:10330bce85cb 178 FR_OK = 0, /* (0) Succeeded */
DCchico 1:10330bce85cb 179 FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
DCchico 1:10330bce85cb 180 FR_INT_ERR, /* (2) Assertion failed */
DCchico 1:10330bce85cb 181 FR_NOT_READY, /* (3) The physical drive cannot work */
DCchico 1:10330bce85cb 182 FR_NO_FILE, /* (4) Could not find the file */
DCchico 1:10330bce85cb 183 FR_NO_PATH, /* (5) Could not find the path */
DCchico 1:10330bce85cb 184 FR_INVALID_NAME, /* (6) The path name format is invalid */
DCchico 1:10330bce85cb 185 FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
DCchico 1:10330bce85cb 186 FR_EXIST, /* (8) Access denied due to prohibited access */
DCchico 1:10330bce85cb 187 FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
DCchico 1:10330bce85cb 188 FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
DCchico 1:10330bce85cb 189 FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
DCchico 1:10330bce85cb 190 FR_NOT_ENABLED, /* (12) The volume has no work area */
DCchico 1:10330bce85cb 191 FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
DCchico 1:10330bce85cb 192 FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
DCchico 1:10330bce85cb 193 FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
DCchico 1:10330bce85cb 194 FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
DCchico 1:10330bce85cb 195 FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
DCchico 1:10330bce85cb 196 FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_SHARE */
DCchico 1:10330bce85cb 197 FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
DCchico 1:10330bce85cb 198 } FRESULT;
DCchico 1:10330bce85cb 199
DCchico 1:10330bce85cb 200
DCchico 1:10330bce85cb 201
DCchico 1:10330bce85cb 202 /*--------------------------------------------------------------*/
DCchico 1:10330bce85cb 203 /* FatFs module application interface */
DCchico 1:10330bce85cb 204
DCchico 1:10330bce85cb 205 FRESULT f_mount (BYTE, FATFS*); /* Mount/Unmount a logical drive */
DCchico 1:10330bce85cb 206 FRESULT f_open (FIL*, const TCHAR*, BYTE); /* Open or create a file */
DCchico 1:10330bce85cb 207 FRESULT f_read (FIL*, void*, UINT, UINT*); /* Read data from a file */
DCchico 1:10330bce85cb 208 FRESULT f_lseek (FIL*, DWORD); /* Move file pointer of a file object */
DCchico 1:10330bce85cb 209 FRESULT f_close (FIL*); /* Close an open file object */
DCchico 1:10330bce85cb 210 FRESULT f_opendir (FATFS_DIR*, const TCHAR*); /* Open an existing directory */
DCchico 1:10330bce85cb 211 FRESULT f_readdir (FATFS_DIR*, FILINFO*); /* Read a directory item */
DCchico 1:10330bce85cb 212 FRESULT f_stat (const TCHAR*, FILINFO*); /* Get file status */
DCchico 1:10330bce85cb 213 FRESULT f_write (FIL*, const void*, UINT, UINT*); /* Write data to a file */
DCchico 1:10330bce85cb 214 FRESULT f_getfree (const TCHAR*, DWORD*, FATFS**); /* Get number of free clusters on the drive */
DCchico 1:10330bce85cb 215 FRESULT f_truncate (FIL*); /* Truncate file */
DCchico 1:10330bce85cb 216 FRESULT f_sync (FIL*); /* Flush cached data of a writing file */
DCchico 1:10330bce85cb 217 FRESULT f_unlink (const TCHAR*); /* Delete an existing file or directory */
DCchico 1:10330bce85cb 218 FRESULT f_mkdir (const TCHAR*); /* Create a new directory */
DCchico 1:10330bce85cb 219 FRESULT f_chmod (const TCHAR*, BYTE, BYTE); /* Change attribute of the file/dir */
DCchico 1:10330bce85cb 220 FRESULT f_utime (const TCHAR*, const FILINFO*); /* Change times-tamp of the file/dir */
DCchico 1:10330bce85cb 221 FRESULT f_rename (const TCHAR*, const TCHAR*); /* Rename/Move a file or directory */
DCchico 1:10330bce85cb 222 FRESULT f_chdrive (BYTE); /* Change current drive */
DCchico 1:10330bce85cb 223 FRESULT f_chdir (const TCHAR*); /* Change current directory */
DCchico 1:10330bce85cb 224 FRESULT f_getcwd (TCHAR*, UINT); /* Get current directory */
DCchico 1:10330bce85cb 225 FRESULT f_forward (FIL*, UINT(*)(const BYTE*,UINT), UINT, UINT*); /* Forward data to the stream */
DCchico 1:10330bce85cb 226 FRESULT f_mkfs (BYTE, BYTE, UINT); /* Create a file system on the drive */
DCchico 1:10330bce85cb 227 FRESULT f_fdisk (BYTE, const DWORD[], void*); /* Divide a physical drive into some partitions */
DCchico 1:10330bce85cb 228 int f_putc (TCHAR, FIL*); /* Put a character to the file */
DCchico 1:10330bce85cb 229 int f_puts (const TCHAR*, FIL*); /* Put a string to the file */
DCchico 1:10330bce85cb 230 int f_printf (FIL*, const TCHAR*, ...); /* Put a formatted string to the file */
DCchico 1:10330bce85cb 231 TCHAR* f_gets (TCHAR*, int, FIL*); /* Get a string from the file */
DCchico 1:10330bce85cb 232
DCchico 1:10330bce85cb 233 #define f_eof(fp) (((fp)->fptr == (fp)->fsize) ? 1 : 0)
DCchico 1:10330bce85cb 234 #define f_error(fp) (((fp)->flag & FA__ERROR) ? 1 : 0)
DCchico 1:10330bce85cb 235 #define f_tell(fp) ((fp)->fptr)
DCchico 1:10330bce85cb 236 #define f_size(fp) ((fp)->fsize)
DCchico 1:10330bce85cb 237
DCchico 1:10330bce85cb 238 #ifndef EOF
DCchico 1:10330bce85cb 239 #define EOF (-1)
DCchico 1:10330bce85cb 240 #endif
DCchico 1:10330bce85cb 241
DCchico 1:10330bce85cb 242
DCchico 1:10330bce85cb 243
DCchico 1:10330bce85cb 244
DCchico 1:10330bce85cb 245 /*--------------------------------------------------------------*/
DCchico 1:10330bce85cb 246 /* Additional user defined functions */
DCchico 1:10330bce85cb 247
DCchico 1:10330bce85cb 248 /* RTC function */
DCchico 1:10330bce85cb 249 #if !_FS_READONLY
DCchico 1:10330bce85cb 250 DWORD get_fattime (void);
DCchico 1:10330bce85cb 251 #endif
DCchico 1:10330bce85cb 252
DCchico 1:10330bce85cb 253 /* Unicode support functions */
DCchico 1:10330bce85cb 254 #if _USE_LFN /* Unicode - OEM code conversion */
DCchico 1:10330bce85cb 255 WCHAR ff_convert (WCHAR, UINT); /* OEM-Unicode bidirectional conversion */
DCchico 1:10330bce85cb 256 WCHAR ff_wtoupper (WCHAR); /* Unicode upper-case conversion */
DCchico 1:10330bce85cb 257 #if _USE_LFN == 3 /* Memory functions */
DCchico 1:10330bce85cb 258 void* ff_memalloc (UINT); /* Allocate memory block */
DCchico 1:10330bce85cb 259 void ff_memfree (void*); /* Free memory block */
DCchico 1:10330bce85cb 260 #endif
DCchico 1:10330bce85cb 261 #endif
DCchico 1:10330bce85cb 262
DCchico 1:10330bce85cb 263 /* Sync functions */
DCchico 1:10330bce85cb 264 #if _FS_REENTRANT
DCchico 1:10330bce85cb 265 int ff_cre_syncobj (BYTE, _SYNC_t*);/* Create a sync object */
DCchico 1:10330bce85cb 266 int ff_req_grant (_SYNC_t); /* Lock sync object */
DCchico 1:10330bce85cb 267 void ff_rel_grant (_SYNC_t); /* Unlock sync object */
DCchico 1:10330bce85cb 268 int ff_del_syncobj (_SYNC_t); /* Delete a sync object */
DCchico 1:10330bce85cb 269 #endif
DCchico 1:10330bce85cb 270
DCchico 1:10330bce85cb 271
DCchico 1:10330bce85cb 272
DCchico 1:10330bce85cb 273
DCchico 1:10330bce85cb 274 /*--------------------------------------------------------------*/
DCchico 1:10330bce85cb 275 /* Flags and offset address */
DCchico 1:10330bce85cb 276
DCchico 1:10330bce85cb 277
DCchico 1:10330bce85cb 278 /* File access control and file status flags (FIL.flag) */
DCchico 1:10330bce85cb 279
DCchico 1:10330bce85cb 280 #define FA_READ 0x01
DCchico 1:10330bce85cb 281 #define FA_OPEN_EXISTING 0x00
DCchico 1:10330bce85cb 282 #define FA__ERROR 0x80
DCchico 1:10330bce85cb 283
DCchico 1:10330bce85cb 284 #if !_FS_READONLY
DCchico 1:10330bce85cb 285 #define FA_WRITE 0x02
DCchico 1:10330bce85cb 286 #define FA_CREATE_NEW 0x04
DCchico 1:10330bce85cb 287 #define FA_CREATE_ALWAYS 0x08
DCchico 1:10330bce85cb 288 #define FA_OPEN_ALWAYS 0x10
DCchico 1:10330bce85cb 289 #define FA__WRITTEN 0x20
DCchico 1:10330bce85cb 290 #define FA__DIRTY 0x40
DCchico 1:10330bce85cb 291 #endif
DCchico 1:10330bce85cb 292
DCchico 1:10330bce85cb 293
DCchico 1:10330bce85cb 294 /* FAT sub type (FATFS.fs_type) */
DCchico 1:10330bce85cb 295
DCchico 1:10330bce85cb 296 #define FS_FAT12 1
DCchico 1:10330bce85cb 297 #define FS_FAT16 2
DCchico 1:10330bce85cb 298 #define FS_FAT32 3
DCchico 1:10330bce85cb 299
DCchico 1:10330bce85cb 300
DCchico 1:10330bce85cb 301 /* File attribute bits for directory entry */
DCchico 1:10330bce85cb 302
DCchico 1:10330bce85cb 303 #define AM_RDO 0x01 /* Read only */
DCchico 1:10330bce85cb 304 #define AM_HID 0x02 /* Hidden */
DCchico 1:10330bce85cb 305 #define AM_SYS 0x04 /* System */
DCchico 1:10330bce85cb 306 #define AM_VOL 0x08 /* Volume label */
DCchico 1:10330bce85cb 307 #define AM_LFN 0x0F /* LFN entry */
DCchico 1:10330bce85cb 308 #define AM_DIR 0x10 /* Directory */
DCchico 1:10330bce85cb 309 #define AM_ARC 0x20 /* Archive */
DCchico 1:10330bce85cb 310 #define AM_MASK 0x3F /* Mask of defined bits */
DCchico 1:10330bce85cb 311
DCchico 1:10330bce85cb 312
DCchico 1:10330bce85cb 313 /* Fast seek feature */
DCchico 1:10330bce85cb 314 #define CREATE_LINKMAP 0xFFFFFFFF
DCchico 1:10330bce85cb 315
DCchico 1:10330bce85cb 316
DCchico 1:10330bce85cb 317
DCchico 1:10330bce85cb 318 /*--------------------------------*/
DCchico 1:10330bce85cb 319 /* Multi-byte word access macros */
DCchico 1:10330bce85cb 320
DCchico 1:10330bce85cb 321 #if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
DCchico 1:10330bce85cb 322 #define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
DCchico 1:10330bce85cb 323 #define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
DCchico 1:10330bce85cb 324 #define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
DCchico 1:10330bce85cb 325 #define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
DCchico 1:10330bce85cb 326 #else /* Use byte-by-byte access to the FAT structure */
DCchico 1:10330bce85cb 327 #define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
DCchico 1:10330bce85cb 328 #define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
DCchico 1:10330bce85cb 329 #define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
DCchico 1:10330bce85cb 330 #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)
DCchico 1:10330bce85cb 331 #endif
DCchico 1:10330bce85cb 332
DCchico 1:10330bce85cb 333 #ifdef __cplusplus
DCchico 1:10330bce85cb 334 }
DCchico 1:10330bce85cb 335 #endif
DCchico 1:10330bce85cb 336
DCchico 1:10330bce85cb 337 #endif /* _FATFS */