S K UCI / SDFileSystemFilinfo

Example SDFileSystem in which FATDirHandle exposes the file info struct of the current file/directory.

FATFileSystem/ChaN/ff.h@0:687056ba3278, 2013-09-04 (annotated)

Committer:
uci1
Date:
Wed Sep 04 00:32:19 2013 +0000
Revision:
0:687056ba3278
Example SDFileSystem with FATDirHandle exposing the file info structure

Who changed what in which revision?

UserRevisionLine numberNew contents of line
uci1 0:687056ba3278 1 /*---------------------------------------------------------------------------/
uci1 0:687056ba3278 2 / FatFs - FAT file system module include file R0.09a (C)ChaN, 2012
uci1 0:687056ba3278 3 /----------------------------------------------------------------------------/
uci1 0:687056ba3278 4 / FatFs module is a generic FAT file system module for small embedded systems.
uci1 0:687056ba3278 5 / This is a free software that opened for education, research and commercial
uci1 0:687056ba3278 6 / developments under license policy of following terms.
uci1 0:687056ba3278 7 /
uci1 0:687056ba3278 8 / Copyright (C) 2012, ChaN, all right reserved.
uci1 0:687056ba3278 9 /
uci1 0:687056ba3278 10 / * The FatFs module is a free software and there is NO WARRANTY.
uci1 0:687056ba3278 11 / * No restriction on use. You can use, modify and redistribute it for
uci1 0:687056ba3278 12 / personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY.
uci1 0:687056ba3278 13 / * Redistributions of source code must retain the above copyright notice.
uci1 0:687056ba3278 14 /
uci1 0:687056ba3278 15 /----------------------------------------------------------------------------*/
uci1 0:687056ba3278 16
uci1 0:687056ba3278 17 #ifndef _FATFS
uci1 0:687056ba3278 18 #define _FATFS 4004 /* Revision ID */
uci1 0:687056ba3278 19
uci1 0:687056ba3278 20 #ifdef __cplusplus
uci1 0:687056ba3278 21 extern "C" {
uci1 0:687056ba3278 22 #endif
uci1 0:687056ba3278 23
uci1 0:687056ba3278 24 #include "integer.h" /* Basic integer types */
uci1 0:687056ba3278 25 #include "ffconf.h" /* FatFs configuration options */
uci1 0:687056ba3278 26
uci1 0:687056ba3278 27 #if _FATFS != _FFCONF
uci1 0:687056ba3278 28 #error Wrong configuration file (ffconf.h).
uci1 0:687056ba3278 29 #endif
uci1 0:687056ba3278 30
uci1 0:687056ba3278 31
uci1 0:687056ba3278 32
uci1 0:687056ba3278 33 /* Definitions of volume management */
uci1 0:687056ba3278 34
uci1 0:687056ba3278 35 #if _MULTI_PARTITION /* Multiple partition configuration */
uci1 0:687056ba3278 36 typedef struct {
uci1 0:687056ba3278 37 BYTE pd; /* Physical drive number */
uci1 0:687056ba3278 38 BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
uci1 0:687056ba3278 39 } PARTITION;
uci1 0:687056ba3278 40 extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
uci1 0:687056ba3278 41 #define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
uci1 0:687056ba3278 42 #define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
uci1 0:687056ba3278 43
uci1 0:687056ba3278 44 #else /* Single partition configuration */
uci1 0:687056ba3278 45 #define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
uci1 0:687056ba3278 46 #define LD2PT(vol) 0 /* Always mounts the 1st partition or in SFD */
uci1 0:687056ba3278 47
uci1 0:687056ba3278 48 #endif
uci1 0:687056ba3278 49
uci1 0:687056ba3278 50
uci1 0:687056ba3278 51
uci1 0:687056ba3278 52 /* Type of path name strings on FatFs API */
uci1 0:687056ba3278 53
uci1 0:687056ba3278 54 #if _LFN_UNICODE /* Unicode string */
uci1 0:687056ba3278 55 #if !_USE_LFN
uci1 0:687056ba3278 56 #error _LFN_UNICODE must be 0 in non-LFN cfg.
uci1 0:687056ba3278 57 #endif
uci1 0:687056ba3278 58 #ifndef _INC_TCHAR
uci1 0:687056ba3278 59 typedef WCHAR TCHAR;
uci1 0:687056ba3278 60 #define _T(x) L ## x
uci1 0:687056ba3278 61 #define _TEXT(x) L ## x
uci1 0:687056ba3278 62 #endif
uci1 0:687056ba3278 63
uci1 0:687056ba3278 64 #else /* ANSI/OEM string */
uci1 0:687056ba3278 65 #ifndef _INC_TCHAR
uci1 0:687056ba3278 66 typedef char TCHAR;
uci1 0:687056ba3278 67 #define _T(x) x
uci1 0:687056ba3278 68 #define _TEXT(x) x
uci1 0:687056ba3278 69 #endif
uci1 0:687056ba3278 70
uci1 0:687056ba3278 71 #endif
uci1 0:687056ba3278 72
uci1 0:687056ba3278 73
uci1 0:687056ba3278 74
uci1 0:687056ba3278 75 /* File system object structure (FATFS) */
uci1 0:687056ba3278 76
uci1 0:687056ba3278 77 typedef struct {
uci1 0:687056ba3278 78 BYTE fs_type; /* FAT sub-type (0:Not mounted) */
uci1 0:687056ba3278 79 BYTE drv; /* Physical drive number */
uci1 0:687056ba3278 80 BYTE csize; /* Sectors per cluster (1,2,4...128) */
uci1 0:687056ba3278 81 BYTE n_fats; /* Number of FAT copies (1,2) */
uci1 0:687056ba3278 82 BYTE wflag; /* win[] dirty flag (1:must be written back) */
uci1 0:687056ba3278 83 BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */
uci1 0:687056ba3278 84 WORD id; /* File system mount ID */
uci1 0:687056ba3278 85 WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
uci1 0:687056ba3278 86 #if _MAX_SS != 512
uci1 0:687056ba3278 87 WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
uci1 0:687056ba3278 88 #endif
uci1 0:687056ba3278 89 #if _FS_REENTRANT
uci1 0:687056ba3278 90 _SYNC_t sobj; /* Identifier of sync object */
uci1 0:687056ba3278 91 #endif
uci1 0:687056ba3278 92 #if !_FS_READONLY
uci1 0:687056ba3278 93 DWORD last_clust; /* Last allocated cluster */
uci1 0:687056ba3278 94 DWORD free_clust; /* Number of free clusters */
uci1 0:687056ba3278 95 DWORD fsi_sector; /* fsinfo sector (FAT32) */
uci1 0:687056ba3278 96 #endif
uci1 0:687056ba3278 97 #if _FS_RPATH
uci1 0:687056ba3278 98 DWORD cdir; /* Current directory start cluster (0:root) */
uci1 0:687056ba3278 99 #endif
uci1 0:687056ba3278 100 DWORD n_fatent; /* Number of FAT entries (= number of clusters + 2) */
uci1 0:687056ba3278 101 DWORD fsize; /* Sectors per FAT */
uci1 0:687056ba3278 102 DWORD fatbase; /* FAT start sector */
uci1 0:687056ba3278 103 DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
uci1 0:687056ba3278 104 DWORD database; /* Data start sector */
uci1 0:687056ba3278 105 DWORD winsect; /* Current sector appearing in the win[] */
uci1 0:687056ba3278 106 BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and Data on tiny cfg) */
uci1 0:687056ba3278 107 } FATFS;
uci1 0:687056ba3278 108
uci1 0:687056ba3278 109
uci1 0:687056ba3278 110
uci1 0:687056ba3278 111 /* File object structure (FIL) */
uci1 0:687056ba3278 112
uci1 0:687056ba3278 113 typedef struct {
uci1 0:687056ba3278 114 FATFS* fs; /* Pointer to the related file system object */
uci1 0:687056ba3278 115 WORD id; /* File system mount ID of the related file system object */
uci1 0:687056ba3278 116 BYTE flag; /* File status flags */
uci1 0:687056ba3278 117 BYTE pad1;
uci1 0:687056ba3278 118 DWORD fptr; /* File read/write pointer (0ed on file open) */
uci1 0:687056ba3278 119 DWORD fsize; /* File size */
uci1 0:687056ba3278 120 DWORD sclust; /* File data start cluster (0:no data cluster, always 0 when fsize is 0) */
uci1 0:687056ba3278 121 DWORD clust; /* Current cluster of fpter */
uci1 0:687056ba3278 122 DWORD dsect; /* Current data sector of fpter */
uci1 0:687056ba3278 123 #if !_FS_READONLY
uci1 0:687056ba3278 124 DWORD dir_sect; /* Sector containing the directory entry */
uci1 0:687056ba3278 125 BYTE* dir_ptr; /* Pointer to the directory entry in the window */
uci1 0:687056ba3278 126 #endif
uci1 0:687056ba3278 127 #if _USE_FASTSEEK
uci1 0:687056ba3278 128 DWORD* cltbl; /* Pointer to the cluster link map table (null on file open) */
uci1 0:687056ba3278 129 #endif
uci1 0:687056ba3278 130 #if _FS_LOCK
uci1 0:687056ba3278 131 UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
uci1 0:687056ba3278 132 #endif
uci1 0:687056ba3278 133 #if !_FS_TINY
uci1 0:687056ba3278 134 BYTE buf[_MAX_SS]; /* File data read/write buffer */
uci1 0:687056ba3278 135 #endif
uci1 0:687056ba3278 136 } FIL;
uci1 0:687056ba3278 137
uci1 0:687056ba3278 138
uci1 0:687056ba3278 139
uci1 0:687056ba3278 140 /* Directory object structure (DIR) */
uci1 0:687056ba3278 141
uci1 0:687056ba3278 142 typedef struct {
uci1 0:687056ba3278 143 FATFS* fs; /* Pointer to the owner file system object */
uci1 0:687056ba3278 144 WORD id; /* Owner file system mount ID */
uci1 0:687056ba3278 145 WORD index; /* Current read/write index number */
uci1 0:687056ba3278 146 DWORD sclust; /* Table start cluster (0:Root dir) */
uci1 0:687056ba3278 147 DWORD clust; /* Current cluster */
uci1 0:687056ba3278 148 DWORD sect; /* Current sector */
uci1 0:687056ba3278 149 BYTE* dir; /* Pointer to the current SFN entry in the win[] */
uci1 0:687056ba3278 150 BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
uci1 0:687056ba3278 151 #if _USE_LFN
uci1 0:687056ba3278 152 WCHAR* lfn; /* Pointer to the LFN working buffer */
uci1 0:687056ba3278 153 WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
uci1 0:687056ba3278 154 #endif
uci1 0:687056ba3278 155 } FATFS_DIR;
uci1 0:687056ba3278 156
uci1 0:687056ba3278 157
uci1 0:687056ba3278 158
uci1 0:687056ba3278 159 /* File status structure (FILINFO) */
uci1 0:687056ba3278 160
uci1 0:687056ba3278 161 typedef struct {
uci1 0:687056ba3278 162 DWORD fsize; /* File size */
uci1 0:687056ba3278 163 WORD fdate; /* Last modified date */
uci1 0:687056ba3278 164 WORD ftime; /* Last modified time */
uci1 0:687056ba3278 165 BYTE fattrib; /* Attribute */
uci1 0:687056ba3278 166 TCHAR fname[13]; /* Short file name (8.3 format) */
uci1 0:687056ba3278 167 #if _USE_LFN
uci1 0:687056ba3278 168 TCHAR* lfname; /* Pointer to the LFN buffer */
uci1 0:687056ba3278 169 UINT lfsize; /* Size of LFN buffer in TCHAR */
uci1 0:687056ba3278 170 #endif
uci1 0:687056ba3278 171 } FILINFO;
uci1 0:687056ba3278 172
uci1 0:687056ba3278 173
uci1 0:687056ba3278 174
uci1 0:687056ba3278 175 /* File function return code (FRESULT) */
uci1 0:687056ba3278 176
uci1 0:687056ba3278 177 typedef enum {
uci1 0:687056ba3278 178 FR_OK = 0, /* (0) Succeeded */
uci1 0:687056ba3278 179 FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
uci1 0:687056ba3278 180 FR_INT_ERR, /* (2) Assertion failed */
uci1 0:687056ba3278 181 FR_NOT_READY, /* (3) The physical drive cannot work */
uci1 0:687056ba3278 182 FR_NO_FILE, /* (4) Could not find the file */
uci1 0:687056ba3278 183 FR_NO_PATH, /* (5) Could not find the path */
uci1 0:687056ba3278 184 FR_INVALID_NAME, /* (6) The path name format is invalid */
uci1 0:687056ba3278 185 FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
uci1 0:687056ba3278 186 FR_EXIST, /* (8) Access denied due to prohibited access */
uci1 0:687056ba3278 187 FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
uci1 0:687056ba3278 188 FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
uci1 0:687056ba3278 189 FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
uci1 0:687056ba3278 190 FR_NOT_ENABLED, /* (12) The volume has no work area */
uci1 0:687056ba3278 191 FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
uci1 0:687056ba3278 192 FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
uci1 0:687056ba3278 193 FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
uci1 0:687056ba3278 194 FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
uci1 0:687056ba3278 195 FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
uci1 0:687056ba3278 196 FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_SHARE */
uci1 0:687056ba3278 197 FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
uci1 0:687056ba3278 198 } FRESULT;
uci1 0:687056ba3278 199
uci1 0:687056ba3278 200
uci1 0:687056ba3278 201
uci1 0:687056ba3278 202 /*--------------------------------------------------------------*/
uci1 0:687056ba3278 203 /* FatFs module application interface */
uci1 0:687056ba3278 204
uci1 0:687056ba3278 205 FRESULT f_mount (BYTE, FATFS*); /* Mount/Unmount a logical drive */
uci1 0:687056ba3278 206 FRESULT f_open (FIL*, const TCHAR*, BYTE); /* Open or create a file */
uci1 0:687056ba3278 207 FRESULT f_read (FIL*, void*, UINT, UINT*); /* Read data from a file */
uci1 0:687056ba3278 208 FRESULT f_lseek (FIL*, DWORD); /* Move file pointer of a file object */
uci1 0:687056ba3278 209 FRESULT f_close (FIL*); /* Close an open file object */
uci1 0:687056ba3278 210 FRESULT f_opendir (FATFS_DIR*, const TCHAR*); /* Open an existing directory */
uci1 0:687056ba3278 211 FRESULT f_readdir (FATFS_DIR*, FILINFO*); /* Read a directory item */
uci1 0:687056ba3278 212 FRESULT f_stat (const TCHAR*, FILINFO*); /* Get file status */
uci1 0:687056ba3278 213 FRESULT f_write (FIL*, const void*, UINT, UINT*); /* Write data to a file */
uci1 0:687056ba3278 214 FRESULT f_getfree (const TCHAR*, DWORD*, FATFS**); /* Get number of free clusters on the drive */
uci1 0:687056ba3278 215 FRESULT f_truncate (FIL*); /* Truncate file */
uci1 0:687056ba3278 216 FRESULT f_sync (FIL*); /* Flush cached data of a writing file */
uci1 0:687056ba3278 217 FRESULT f_unlink (const TCHAR*); /* Delete an existing file or directory */
uci1 0:687056ba3278 218 FRESULT f_mkdir (const TCHAR*); /* Create a new directory */
uci1 0:687056ba3278 219 FRESULT f_chmod (const TCHAR*, BYTE, BYTE); /* Change attribute of the file/dir */
uci1 0:687056ba3278 220 FRESULT f_utime (const TCHAR*, const FILINFO*); /* Change times-tamp of the file/dir */
uci1 0:687056ba3278 221 FRESULT f_rename (const TCHAR*, const TCHAR*); /* Rename/Move a file or directory */
uci1 0:687056ba3278 222 FRESULT f_chdrive (BYTE); /* Change current drive */
uci1 0:687056ba3278 223 FRESULT f_chdir (const TCHAR*); /* Change current directory */
uci1 0:687056ba3278 224 FRESULT f_getcwd (TCHAR*, UINT); /* Get current directory */
uci1 0:687056ba3278 225 FRESULT f_forward (FIL*, UINT(*)(const BYTE*,UINT), UINT, UINT*); /* Forward data to the stream */
uci1 0:687056ba3278 226 FRESULT f_mkfs (BYTE, BYTE, UINT); /* Create a file system on the drive */
uci1 0:687056ba3278 227 FRESULT f_fdisk (BYTE, const DWORD[], void*); /* Divide a physical drive into some partitions */
uci1 0:687056ba3278 228 int f_putc (TCHAR, FIL*); /* Put a character to the file */
uci1 0:687056ba3278 229 int f_puts (const TCHAR*, FIL*); /* Put a string to the file */
uci1 0:687056ba3278 230 int f_printf (FIL*, const TCHAR*, ...); /* Put a formatted string to the file */
uci1 0:687056ba3278 231 TCHAR* f_gets (TCHAR*, int, FIL*); /* Get a string from the file */
uci1 0:687056ba3278 232
uci1 0:687056ba3278 233 #define f_eof(fp) (((fp)->fptr == (fp)->fsize) ? 1 : 0)
uci1 0:687056ba3278 234 #define f_error(fp) (((fp)->flag & FA__ERROR) ? 1 : 0)
uci1 0:687056ba3278 235 #define f_tell(fp) ((fp)->fptr)
uci1 0:687056ba3278 236 #define f_size(fp) ((fp)->fsize)
uci1 0:687056ba3278 237
uci1 0:687056ba3278 238 #ifndef EOF
uci1 0:687056ba3278 239 #define EOF (-1)
uci1 0:687056ba3278 240 #endif
uci1 0:687056ba3278 241
uci1 0:687056ba3278 242
uci1 0:687056ba3278 243
uci1 0:687056ba3278 244
uci1 0:687056ba3278 245 /*--------------------------------------------------------------*/
uci1 0:687056ba3278 246 /* Additional user defined functions */
uci1 0:687056ba3278 247
uci1 0:687056ba3278 248 /* RTC function */
uci1 0:687056ba3278 249 #if !_FS_READONLY
uci1 0:687056ba3278 250 DWORD get_fattime (void);
uci1 0:687056ba3278 251 #endif
uci1 0:687056ba3278 252
uci1 0:687056ba3278 253 /* Unicode support functions */
uci1 0:687056ba3278 254 #if _USE_LFN /* Unicode - OEM code conversion */
uci1 0:687056ba3278 255 WCHAR ff_convert (WCHAR, UINT); /* OEM-Unicode bidirectional conversion */
uci1 0:687056ba3278 256 WCHAR ff_wtoupper (WCHAR); /* Unicode upper-case conversion */
uci1 0:687056ba3278 257 #if _USE_LFN == 3 /* Memory functions */
uci1 0:687056ba3278 258 void* ff_memalloc (UINT); /* Allocate memory block */
uci1 0:687056ba3278 259 void ff_memfree (void*); /* Free memory block */
uci1 0:687056ba3278 260 #endif
uci1 0:687056ba3278 261 #endif
uci1 0:687056ba3278 262
uci1 0:687056ba3278 263 /* Sync functions */
uci1 0:687056ba3278 264 #if _FS_REENTRANT
uci1 0:687056ba3278 265 int ff_cre_syncobj (BYTE, _SYNC_t*);/* Create a sync object */
uci1 0:687056ba3278 266 int ff_req_grant (_SYNC_t); /* Lock sync object */
uci1 0:687056ba3278 267 void ff_rel_grant (_SYNC_t); /* Unlock sync object */
uci1 0:687056ba3278 268 int ff_del_syncobj (_SYNC_t); /* Delete a sync object */
uci1 0:687056ba3278 269 #endif
uci1 0:687056ba3278 270
uci1 0:687056ba3278 271
uci1 0:687056ba3278 272
uci1 0:687056ba3278 273
uci1 0:687056ba3278 274 /*--------------------------------------------------------------*/
uci1 0:687056ba3278 275 /* Flags and offset address */
uci1 0:687056ba3278 276
uci1 0:687056ba3278 277
uci1 0:687056ba3278 278 /* File access control and file status flags (FIL.flag) */
uci1 0:687056ba3278 279
uci1 0:687056ba3278 280 #define FA_READ 0x01
uci1 0:687056ba3278 281 #define FA_OPEN_EXISTING 0x00
uci1 0:687056ba3278 282 #define FA__ERROR 0x80
uci1 0:687056ba3278 283
uci1 0:687056ba3278 284 #if !_FS_READONLY
uci1 0:687056ba3278 285 #define FA_WRITE 0x02
uci1 0:687056ba3278 286 #define FA_CREATE_NEW 0x04
uci1 0:687056ba3278 287 #define FA_CREATE_ALWAYS 0x08
uci1 0:687056ba3278 288 #define FA_OPEN_ALWAYS 0x10
uci1 0:687056ba3278 289 #define FA__WRITTEN 0x20
uci1 0:687056ba3278 290 #define FA__DIRTY 0x40
uci1 0:687056ba3278 291 #endif
uci1 0:687056ba3278 292
uci1 0:687056ba3278 293
uci1 0:687056ba3278 294 /* FAT sub type (FATFS.fs_type) */
uci1 0:687056ba3278 295
uci1 0:687056ba3278 296 #define FS_FAT12 1
uci1 0:687056ba3278 297 #define FS_FAT16 2
uci1 0:687056ba3278 298 #define FS_FAT32 3
uci1 0:687056ba3278 299
uci1 0:687056ba3278 300
uci1 0:687056ba3278 301 /* File attribute bits for directory entry */
uci1 0:687056ba3278 302
uci1 0:687056ba3278 303 #define AM_RDO 0x01 /* Read only */
uci1 0:687056ba3278 304 #define AM_HID 0x02 /* Hidden */
uci1 0:687056ba3278 305 #define AM_SYS 0x04 /* System */
uci1 0:687056ba3278 306 #define AM_VOL 0x08 /* Volume label */
uci1 0:687056ba3278 307 #define AM_LFN 0x0F /* LFN entry */
uci1 0:687056ba3278 308 #define AM_DIR 0x10 /* Directory */
uci1 0:687056ba3278 309 #define AM_ARC 0x20 /* Archive */
uci1 0:687056ba3278 310 #define AM_MASK 0x3F /* Mask of defined bits */
uci1 0:687056ba3278 311
uci1 0:687056ba3278 312
uci1 0:687056ba3278 313 /* Fast seek feature */
uci1 0:687056ba3278 314 #define CREATE_LINKMAP 0xFFFFFFFF
uci1 0:687056ba3278 315
uci1 0:687056ba3278 316
uci1 0:687056ba3278 317
uci1 0:687056ba3278 318 /*--------------------------------*/
uci1 0:687056ba3278 319 /* Multi-byte word access macros */
uci1 0:687056ba3278 320
uci1 0:687056ba3278 321 #if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
uci1 0:687056ba3278 322 #define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
uci1 0:687056ba3278 323 #define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
uci1 0:687056ba3278 324 #define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
uci1 0:687056ba3278 325 #define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
uci1 0:687056ba3278 326 #else /* Use byte-by-byte access to the FAT structure */
uci1 0:687056ba3278 327 #define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
uci1 0:687056ba3278 328 #define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
uci1 0:687056ba3278 329 #define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
uci1 0:687056ba3278 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)
uci1 0:687056ba3278 331 #endif
uci1 0:687056ba3278 332
uci1 0:687056ba3278 333 #ifdef __cplusplus
uci1 0:687056ba3278 334 }
uci1 0:687056ba3278 335 #endif
uci1 0:687056ba3278 336
uci1 0:687056ba3278 337 #endif /* _FATFS */