Neil Thiessen / SDFileSystem

A re-written SDFileSystem library with improved compatibility, CRC support, and card removal/replacement support.

Dependencies:   FATFileSystem

Dependents:   xadow_m0_SD_Hello roam_v1 roam_v2 Polytech_tours ... more

FATFileSystem/ChaN/ff.h@11:67ddc53e3983, 2014-08-14 (annotated)

Committer:
neilt6
Date:
Thu Aug 14 22:27:07 2014 +0000
Revision:
11:67ddc53e3983
Major performance improvements with custom FATFileSystem

Who changed what in which revision?

UserRevisionLine numberNew contents of line
neilt6 11:67ddc53e3983 1 /*---------------------------------------------------------------------------/
neilt6 11:67ddc53e3983 2 / FatFs - FAT file system module include file R0.09a (C)ChaN, 2012
neilt6 11:67ddc53e3983 3 /----------------------------------------------------------------------------/
neilt6 11:67ddc53e3983 4 / FatFs module is a generic FAT file system module for small embedded systems.
neilt6 11:67ddc53e3983 5 / This is a free software that opened for education, research and commercial
neilt6 11:67ddc53e3983 6 / developments under license policy of following terms.
neilt6 11:67ddc53e3983 7 /
neilt6 11:67ddc53e3983 8 / Copyright (C) 2012, ChaN, all right reserved.
neilt6 11:67ddc53e3983 9 /
neilt6 11:67ddc53e3983 10 / * The FatFs module is a free software and there is NO WARRANTY.
neilt6 11:67ddc53e3983 11 / * No restriction on use. You can use, modify and redistribute it for
neilt6 11:67ddc53e3983 12 / personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY.
neilt6 11:67ddc53e3983 13 / * Redistributions of source code must retain the above copyright notice.
neilt6 11:67ddc53e3983 14 /
neilt6 11:67ddc53e3983 15 /----------------------------------------------------------------------------*/
neilt6 11:67ddc53e3983 16
neilt6 11:67ddc53e3983 17 #ifndef _FATFS
neilt6 11:67ddc53e3983 18 #define _FATFS 4004 /* Revision ID */
neilt6 11:67ddc53e3983 19
neilt6 11:67ddc53e3983 20 #ifdef __cplusplus
neilt6 11:67ddc53e3983 21 extern "C" {
neilt6 11:67ddc53e3983 22 #endif
neilt6 11:67ddc53e3983 23
neilt6 11:67ddc53e3983 24 #include "integer.h" /* Basic integer types */
neilt6 11:67ddc53e3983 25 #include "ffconf.h" /* FatFs configuration options */
neilt6 11:67ddc53e3983 26
neilt6 11:67ddc53e3983 27 #if _FATFS != _FFCONF
neilt6 11:67ddc53e3983 28 #error Wrong configuration file (ffconf.h).
neilt6 11:67ddc53e3983 29 #endif
neilt6 11:67ddc53e3983 30
neilt6 11:67ddc53e3983 31
neilt6 11:67ddc53e3983 32
neilt6 11:67ddc53e3983 33 /* Definitions of volume management */
neilt6 11:67ddc53e3983 34
neilt6 11:67ddc53e3983 35 #if _MULTI_PARTITION /* Multiple partition configuration */
neilt6 11:67ddc53e3983 36 typedef struct {
neilt6 11:67ddc53e3983 37 BYTE pd; /* Physical drive number */
neilt6 11:67ddc53e3983 38 BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
neilt6 11:67ddc53e3983 39 } PARTITION;
neilt6 11:67ddc53e3983 40 extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
neilt6 11:67ddc53e3983 41 #define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
neilt6 11:67ddc53e3983 42 #define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
neilt6 11:67ddc53e3983 43
neilt6 11:67ddc53e3983 44 #else /* Single partition configuration */
neilt6 11:67ddc53e3983 45 #define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
neilt6 11:67ddc53e3983 46 #define LD2PT(vol) 0 /* Always mounts the 1st partition or in SFD */
neilt6 11:67ddc53e3983 47
neilt6 11:67ddc53e3983 48 #endif
neilt6 11:67ddc53e3983 49
neilt6 11:67ddc53e3983 50
neilt6 11:67ddc53e3983 51
neilt6 11:67ddc53e3983 52 /* Type of path name strings on FatFs API */
neilt6 11:67ddc53e3983 53
neilt6 11:67ddc53e3983 54 #if _LFN_UNICODE /* Unicode string */
neilt6 11:67ddc53e3983 55 #if !_USE_LFN
neilt6 11:67ddc53e3983 56 #error _LFN_UNICODE must be 0 in non-LFN cfg.
neilt6 11:67ddc53e3983 57 #endif
neilt6 11:67ddc53e3983 58 #ifndef _INC_TCHAR
neilt6 11:67ddc53e3983 59 typedef WCHAR TCHAR;
neilt6 11:67ddc53e3983 60 #define _T(x) L ## x
neilt6 11:67ddc53e3983 61 #define _TEXT(x) L ## x
neilt6 11:67ddc53e3983 62 #endif
neilt6 11:67ddc53e3983 63
neilt6 11:67ddc53e3983 64 #else /* ANSI/OEM string */
neilt6 11:67ddc53e3983 65 #ifndef _INC_TCHAR
neilt6 11:67ddc53e3983 66 typedef char TCHAR;
neilt6 11:67ddc53e3983 67 #define _T(x) x
neilt6 11:67ddc53e3983 68 #define _TEXT(x) x
neilt6 11:67ddc53e3983 69 #endif
neilt6 11:67ddc53e3983 70
neilt6 11:67ddc53e3983 71 #endif
neilt6 11:67ddc53e3983 72
neilt6 11:67ddc53e3983 73
neilt6 11:67ddc53e3983 74
neilt6 11:67ddc53e3983 75 /* File system object structure (FATFS) */
neilt6 11:67ddc53e3983 76
neilt6 11:67ddc53e3983 77 typedef struct {
neilt6 11:67ddc53e3983 78 BYTE fs_type; /* FAT sub-type (0:Not mounted) */
neilt6 11:67ddc53e3983 79 BYTE drv; /* Physical drive number */
neilt6 11:67ddc53e3983 80 BYTE csize; /* Sectors per cluster (1,2,4...128) */
neilt6 11:67ddc53e3983 81 BYTE n_fats; /* Number of FAT copies (1,2) */
neilt6 11:67ddc53e3983 82 BYTE wflag; /* win[] dirty flag (1:must be written back) */
neilt6 11:67ddc53e3983 83 BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */
neilt6 11:67ddc53e3983 84 WORD id; /* File system mount ID */
neilt6 11:67ddc53e3983 85 WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
neilt6 11:67ddc53e3983 86 #if _MAX_SS != 512
neilt6 11:67ddc53e3983 87 WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
neilt6 11:67ddc53e3983 88 #endif
neilt6 11:67ddc53e3983 89 #if _FS_REENTRANT
neilt6 11:67ddc53e3983 90 _SYNC_t sobj; /* Identifier of sync object */
neilt6 11:67ddc53e3983 91 #endif
neilt6 11:67ddc53e3983 92 #if !_FS_READONLY
neilt6 11:67ddc53e3983 93 DWORD last_clust; /* Last allocated cluster */
neilt6 11:67ddc53e3983 94 DWORD free_clust; /* Number of free clusters */
neilt6 11:67ddc53e3983 95 DWORD fsi_sector; /* fsinfo sector (FAT32) */
neilt6 11:67ddc53e3983 96 #endif
neilt6 11:67ddc53e3983 97 #if _FS_RPATH
neilt6 11:67ddc53e3983 98 DWORD cdir; /* Current directory start cluster (0:root) */
neilt6 11:67ddc53e3983 99 #endif
neilt6 11:67ddc53e3983 100 DWORD n_fatent; /* Number of FAT entries (= number of clusters + 2) */
neilt6 11:67ddc53e3983 101 DWORD fsize; /* Sectors per FAT */
neilt6 11:67ddc53e3983 102 DWORD fatbase; /* FAT start sector */
neilt6 11:67ddc53e3983 103 DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
neilt6 11:67ddc53e3983 104 DWORD database; /* Data start sector */
neilt6 11:67ddc53e3983 105 DWORD winsect; /* Current sector appearing in the win[] */
neilt6 11:67ddc53e3983 106 BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and Data on tiny cfg) */
neilt6 11:67ddc53e3983 107 } FATFS;
neilt6 11:67ddc53e3983 108
neilt6 11:67ddc53e3983 109
neilt6 11:67ddc53e3983 110
neilt6 11:67ddc53e3983 111 /* File object structure (FIL) */
neilt6 11:67ddc53e3983 112
neilt6 11:67ddc53e3983 113 typedef struct {
neilt6 11:67ddc53e3983 114 FATFS* fs; /* Pointer to the related file system object */
neilt6 11:67ddc53e3983 115 WORD id; /* File system mount ID of the related file system object */
neilt6 11:67ddc53e3983 116 BYTE flag; /* File status flags */
neilt6 11:67ddc53e3983 117 BYTE pad1;
neilt6 11:67ddc53e3983 118 DWORD fptr; /* File read/write pointer (0ed on file open) */
neilt6 11:67ddc53e3983 119 DWORD fsize; /* File size */
neilt6 11:67ddc53e3983 120 DWORD sclust; /* File data start cluster (0:no data cluster, always 0 when fsize is 0) */
neilt6 11:67ddc53e3983 121 DWORD clust; /* Current cluster of fpter */
neilt6 11:67ddc53e3983 122 DWORD dsect; /* Current data sector of fpter */
neilt6 11:67ddc53e3983 123 #if !_FS_READONLY
neilt6 11:67ddc53e3983 124 DWORD dir_sect; /* Sector containing the directory entry */
neilt6 11:67ddc53e3983 125 BYTE* dir_ptr; /* Pointer to the directory entry in the window */
neilt6 11:67ddc53e3983 126 #endif
neilt6 11:67ddc53e3983 127 #if _USE_FASTSEEK
neilt6 11:67ddc53e3983 128 DWORD* cltbl; /* Pointer to the cluster link map table (null on file open) */
neilt6 11:67ddc53e3983 129 #endif
neilt6 11:67ddc53e3983 130 #if _FS_LOCK
neilt6 11:67ddc53e3983 131 UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
neilt6 11:67ddc53e3983 132 #endif
neilt6 11:67ddc53e3983 133 #if !_FS_TINY
neilt6 11:67ddc53e3983 134 BYTE buf[_MAX_SS]; /* File data read/write buffer */
neilt6 11:67ddc53e3983 135 #endif
neilt6 11:67ddc53e3983 136 } FIL;
neilt6 11:67ddc53e3983 137
neilt6 11:67ddc53e3983 138
neilt6 11:67ddc53e3983 139
neilt6 11:67ddc53e3983 140 /* Directory object structure (DIR) */
neilt6 11:67ddc53e3983 141
neilt6 11:67ddc53e3983 142 typedef struct {
neilt6 11:67ddc53e3983 143 FATFS* fs; /* Pointer to the owner file system object */
neilt6 11:67ddc53e3983 144 WORD id; /* Owner file system mount ID */
neilt6 11:67ddc53e3983 145 WORD index; /* Current read/write index number */
neilt6 11:67ddc53e3983 146 DWORD sclust; /* Table start cluster (0:Root dir) */
neilt6 11:67ddc53e3983 147 DWORD clust; /* Current cluster */
neilt6 11:67ddc53e3983 148 DWORD sect; /* Current sector */
neilt6 11:67ddc53e3983 149 BYTE* dir; /* Pointer to the current SFN entry in the win[] */
neilt6 11:67ddc53e3983 150 BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
neilt6 11:67ddc53e3983 151 #if _USE_LFN
neilt6 11:67ddc53e3983 152 WCHAR* lfn; /* Pointer to the LFN working buffer */
neilt6 11:67ddc53e3983 153 WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
neilt6 11:67ddc53e3983 154 #endif
neilt6 11:67ddc53e3983 155 } FATFS_DIR;
neilt6 11:67ddc53e3983 156
neilt6 11:67ddc53e3983 157
neilt6 11:67ddc53e3983 158
neilt6 11:67ddc53e3983 159 /* File status structure (FILINFO) */
neilt6 11:67ddc53e3983 160
neilt6 11:67ddc53e3983 161 typedef struct {
neilt6 11:67ddc53e3983 162 DWORD fsize; /* File size */
neilt6 11:67ddc53e3983 163 WORD fdate; /* Last modified date */
neilt6 11:67ddc53e3983 164 WORD ftime; /* Last modified time */
neilt6 11:67ddc53e3983 165 BYTE fattrib; /* Attribute */
neilt6 11:67ddc53e3983 166 TCHAR fname[13]; /* Short file name (8.3 format) */
neilt6 11:67ddc53e3983 167 #if _USE_LFN
neilt6 11:67ddc53e3983 168 TCHAR* lfname; /* Pointer to the LFN buffer */
neilt6 11:67ddc53e3983 169 UINT lfsize; /* Size of LFN buffer in TCHAR */
neilt6 11:67ddc53e3983 170 #endif
neilt6 11:67ddc53e3983 171 } FILINFO;
neilt6 11:67ddc53e3983 172
neilt6 11:67ddc53e3983 173
neilt6 11:67ddc53e3983 174
neilt6 11:67ddc53e3983 175 /* File function return code (FRESULT) */
neilt6 11:67ddc53e3983 176
neilt6 11:67ddc53e3983 177 typedef enum {
neilt6 11:67ddc53e3983 178 FR_OK = 0, /* (0) Succeeded */
neilt6 11:67ddc53e3983 179 FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
neilt6 11:67ddc53e3983 180 FR_INT_ERR, /* (2) Assertion failed */
neilt6 11:67ddc53e3983 181 FR_NOT_READY, /* (3) The physical drive cannot work */
neilt6 11:67ddc53e3983 182 FR_NO_FILE, /* (4) Could not find the file */
neilt6 11:67ddc53e3983 183 FR_NO_PATH, /* (5) Could not find the path */
neilt6 11:67ddc53e3983 184 FR_INVALID_NAME, /* (6) The path name format is invalid */
neilt6 11:67ddc53e3983 185 FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
neilt6 11:67ddc53e3983 186 FR_EXIST, /* (8) Access denied due to prohibited access */
neilt6 11:67ddc53e3983 187 FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
neilt6 11:67ddc53e3983 188 FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
neilt6 11:67ddc53e3983 189 FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
neilt6 11:67ddc53e3983 190 FR_NOT_ENABLED, /* (12) The volume has no work area */
neilt6 11:67ddc53e3983 191 FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
neilt6 11:67ddc53e3983 192 FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
neilt6 11:67ddc53e3983 193 FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
neilt6 11:67ddc53e3983 194 FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
neilt6 11:67ddc53e3983 195 FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
neilt6 11:67ddc53e3983 196 FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_SHARE */
neilt6 11:67ddc53e3983 197 FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
neilt6 11:67ddc53e3983 198 } FRESULT;
neilt6 11:67ddc53e3983 199
neilt6 11:67ddc53e3983 200
neilt6 11:67ddc53e3983 201
neilt6 11:67ddc53e3983 202 /*--------------------------------------------------------------*/
neilt6 11:67ddc53e3983 203 /* FatFs module application interface */
neilt6 11:67ddc53e3983 204
neilt6 11:67ddc53e3983 205 FRESULT f_mount (BYTE, FATFS*); /* Mount/Unmount a logical drive */
neilt6 11:67ddc53e3983 206 FRESULT f_open (FIL*, const TCHAR*, BYTE); /* Open or create a file */
neilt6 11:67ddc53e3983 207 FRESULT f_read (FIL*, void*, UINT, UINT*); /* Read data from a file */
neilt6 11:67ddc53e3983 208 FRESULT f_lseek (FIL*, DWORD); /* Move file pointer of a file object */
neilt6 11:67ddc53e3983 209 FRESULT f_close (FIL*); /* Close an open file object */
neilt6 11:67ddc53e3983 210 FRESULT f_opendir (FATFS_DIR*, const TCHAR*); /* Open an existing directory */
neilt6 11:67ddc53e3983 211 FRESULT f_readdir (FATFS_DIR*, FILINFO*); /* Read a directory item */
neilt6 11:67ddc53e3983 212 FRESULT f_stat (const TCHAR*, FILINFO*); /* Get file status */
neilt6 11:67ddc53e3983 213 FRESULT f_write (FIL*, const void*, UINT, UINT*); /* Write data to a file */
neilt6 11:67ddc53e3983 214 FRESULT f_getfree (const TCHAR*, DWORD*, FATFS**); /* Get number of free clusters on the drive */
neilt6 11:67ddc53e3983 215 FRESULT f_truncate (FIL*); /* Truncate file */
neilt6 11:67ddc53e3983 216 FRESULT f_sync (FIL*); /* Flush cached data of a writing file */
neilt6 11:67ddc53e3983 217 FRESULT f_unlink (const TCHAR*); /* Delete an existing file or directory */
neilt6 11:67ddc53e3983 218 FRESULT f_mkdir (const TCHAR*); /* Create a new directory */
neilt6 11:67ddc53e3983 219 FRESULT f_chmod (const TCHAR*, BYTE, BYTE); /* Change attribute of the file/dir */
neilt6 11:67ddc53e3983 220 FRESULT f_utime (const TCHAR*, const FILINFO*); /* Change times-tamp of the file/dir */
neilt6 11:67ddc53e3983 221 FRESULT f_rename (const TCHAR*, const TCHAR*); /* Rename/Move a file or directory */
neilt6 11:67ddc53e3983 222 FRESULT f_chdrive (BYTE); /* Change current drive */
neilt6 11:67ddc53e3983 223 FRESULT f_chdir (const TCHAR*); /* Change current directory */
neilt6 11:67ddc53e3983 224 FRESULT f_getcwd (TCHAR*, UINT); /* Get current directory */
neilt6 11:67ddc53e3983 225 FRESULT f_forward (FIL*, UINT(*)(const BYTE*,UINT), UINT, UINT*); /* Forward data to the stream */
neilt6 11:67ddc53e3983 226 FRESULT f_mkfs (BYTE, BYTE, UINT); /* Create a file system on the drive */
neilt6 11:67ddc53e3983 227 FRESULT f_fdisk (BYTE, const DWORD[], void*); /* Divide a physical drive into some partitions */
neilt6 11:67ddc53e3983 228 int f_putc (TCHAR, FIL*); /* Put a character to the file */
neilt6 11:67ddc53e3983 229 int f_puts (const TCHAR*, FIL*); /* Put a string to the file */
neilt6 11:67ddc53e3983 230 int f_printf (FIL*, const TCHAR*, ...); /* Put a formatted string to the file */
neilt6 11:67ddc53e3983 231 TCHAR* f_gets (TCHAR*, int, FIL*); /* Get a string from the file */
neilt6 11:67ddc53e3983 232
neilt6 11:67ddc53e3983 233 #define f_eof(fp) (((fp)->fptr == (fp)->fsize) ? 1 : 0)
neilt6 11:67ddc53e3983 234 #define f_error(fp) (((fp)->flag & FA__ERROR) ? 1 : 0)
neilt6 11:67ddc53e3983 235 #define f_tell(fp) ((fp)->fptr)
neilt6 11:67ddc53e3983 236 #define f_size(fp) ((fp)->fsize)
neilt6 11:67ddc53e3983 237
neilt6 11:67ddc53e3983 238 #ifndef EOF
neilt6 11:67ddc53e3983 239 #define EOF (-1)
neilt6 11:67ddc53e3983 240 #endif
neilt6 11:67ddc53e3983 241
neilt6 11:67ddc53e3983 242
neilt6 11:67ddc53e3983 243
neilt6 11:67ddc53e3983 244
neilt6 11:67ddc53e3983 245 /*--------------------------------------------------------------*/
neilt6 11:67ddc53e3983 246 /* Additional user defined functions */
neilt6 11:67ddc53e3983 247
neilt6 11:67ddc53e3983 248 /* RTC function */
neilt6 11:67ddc53e3983 249 #if !_FS_READONLY
neilt6 11:67ddc53e3983 250 DWORD get_fattime (void);
neilt6 11:67ddc53e3983 251 #endif
neilt6 11:67ddc53e3983 252
neilt6 11:67ddc53e3983 253 /* Unicode support functions */
neilt6 11:67ddc53e3983 254 #if _USE_LFN /* Unicode - OEM code conversion */
neilt6 11:67ddc53e3983 255 WCHAR ff_convert (WCHAR, UINT); /* OEM-Unicode bidirectional conversion */
neilt6 11:67ddc53e3983 256 WCHAR ff_wtoupper (WCHAR); /* Unicode upper-case conversion */
neilt6 11:67ddc53e3983 257 #if _USE_LFN == 3 /* Memory functions */
neilt6 11:67ddc53e3983 258 void* ff_memalloc (UINT); /* Allocate memory block */
neilt6 11:67ddc53e3983 259 void ff_memfree (void*); /* Free memory block */
neilt6 11:67ddc53e3983 260 #endif
neilt6 11:67ddc53e3983 261 #endif
neilt6 11:67ddc53e3983 262
neilt6 11:67ddc53e3983 263 /* Sync functions */
neilt6 11:67ddc53e3983 264 #if _FS_REENTRANT
neilt6 11:67ddc53e3983 265 int ff_cre_syncobj (BYTE, _SYNC_t*);/* Create a sync object */
neilt6 11:67ddc53e3983 266 int ff_req_grant (_SYNC_t); /* Lock sync object */
neilt6 11:67ddc53e3983 267 void ff_rel_grant (_SYNC_t); /* Unlock sync object */
neilt6 11:67ddc53e3983 268 int ff_del_syncobj (_SYNC_t); /* Delete a sync object */
neilt6 11:67ddc53e3983 269 #endif
neilt6 11:67ddc53e3983 270
neilt6 11:67ddc53e3983 271
neilt6 11:67ddc53e3983 272
neilt6 11:67ddc53e3983 273
neilt6 11:67ddc53e3983 274 /*--------------------------------------------------------------*/
neilt6 11:67ddc53e3983 275 /* Flags and offset address */
neilt6 11:67ddc53e3983 276
neilt6 11:67ddc53e3983 277
neilt6 11:67ddc53e3983 278 /* File access control and file status flags (FIL.flag) */
neilt6 11:67ddc53e3983 279
neilt6 11:67ddc53e3983 280 #define FA_READ 0x01
neilt6 11:67ddc53e3983 281 #define FA_OPEN_EXISTING 0x00
neilt6 11:67ddc53e3983 282 #define FA__ERROR 0x80
neilt6 11:67ddc53e3983 283
neilt6 11:67ddc53e3983 284 #if !_FS_READONLY
neilt6 11:67ddc53e3983 285 #define FA_WRITE 0x02
neilt6 11:67ddc53e3983 286 #define FA_CREATE_NEW 0x04
neilt6 11:67ddc53e3983 287 #define FA_CREATE_ALWAYS 0x08
neilt6 11:67ddc53e3983 288 #define FA_OPEN_ALWAYS 0x10
neilt6 11:67ddc53e3983 289 #define FA__WRITTEN 0x20
neilt6 11:67ddc53e3983 290 #define FA__DIRTY 0x40
neilt6 11:67ddc53e3983 291 #endif
neilt6 11:67ddc53e3983 292
neilt6 11:67ddc53e3983 293
neilt6 11:67ddc53e3983 294 /* FAT sub type (FATFS.fs_type) */
neilt6 11:67ddc53e3983 295
neilt6 11:67ddc53e3983 296 #define FS_FAT12 1
neilt6 11:67ddc53e3983 297 #define FS_FAT16 2
neilt6 11:67ddc53e3983 298 #define FS_FAT32 3
neilt6 11:67ddc53e3983 299
neilt6 11:67ddc53e3983 300
neilt6 11:67ddc53e3983 301 /* File attribute bits for directory entry */
neilt6 11:67ddc53e3983 302
neilt6 11:67ddc53e3983 303 #define AM_RDO 0x01 /* Read only */
neilt6 11:67ddc53e3983 304 #define AM_HID 0x02 /* Hidden */
neilt6 11:67ddc53e3983 305 #define AM_SYS 0x04 /* System */
neilt6 11:67ddc53e3983 306 #define AM_VOL 0x08 /* Volume label */
neilt6 11:67ddc53e3983 307 #define AM_LFN 0x0F /* LFN entry */
neilt6 11:67ddc53e3983 308 #define AM_DIR 0x10 /* Directory */
neilt6 11:67ddc53e3983 309 #define AM_ARC 0x20 /* Archive */
neilt6 11:67ddc53e3983 310 #define AM_MASK 0x3F /* Mask of defined bits */
neilt6 11:67ddc53e3983 311
neilt6 11:67ddc53e3983 312
neilt6 11:67ddc53e3983 313 /* Fast seek feature */
neilt6 11:67ddc53e3983 314 #define CREATE_LINKMAP 0xFFFFFFFF
neilt6 11:67ddc53e3983 315
neilt6 11:67ddc53e3983 316
neilt6 11:67ddc53e3983 317
neilt6 11:67ddc53e3983 318 /*--------------------------------*/
neilt6 11:67ddc53e3983 319 /* Multi-byte word access macros */
neilt6 11:67ddc53e3983 320
neilt6 11:67ddc53e3983 321 #if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
neilt6 11:67ddc53e3983 322 #define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
neilt6 11:67ddc53e3983 323 #define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
neilt6 11:67ddc53e3983 324 #define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
neilt6 11:67ddc53e3983 325 #define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
neilt6 11:67ddc53e3983 326 #else /* Use byte-by-byte access to the FAT structure */
neilt6 11:67ddc53e3983 327 #define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
neilt6 11:67ddc53e3983 328 #define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
neilt6 11:67ddc53e3983 329 #define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
neilt6 11:67ddc53e3983 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)
neilt6 11:67ddc53e3983 331 #endif
neilt6 11:67ddc53e3983 332
neilt6 11:67ddc53e3983 333 #ifdef __cplusplus
neilt6 11:67ddc53e3983 334 }
neilt6 11:67ddc53e3983 335 #endif
neilt6 11:67ddc53e3983 336
neilt6 11:67ddc53e3983 337 #endif /* _FATFS */