ELEC2645 (2019/20) / Mbed 2 deprecated ELEC2645_Project_el18gs

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   mbed

SDFileSystem/FATFileSystem/ChaN/ff.h@2:eaf245af2aae, 2020-03-06 (annotated)

Committer:
el18gs
Date:
Fri Mar 06 19:27:12 2020 +0000
Revision:
2:eaf245af2aae
Initial Commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
el18gs 2:eaf245af2aae 1 /*---------------------------------------------------------------------------/
el18gs 2:eaf245af2aae 2 / FatFs - FAT file system module include R0.11a (C)ChaN, 2015
el18gs 2:eaf245af2aae 3 /----------------------------------------------------------------------------/
el18gs 2:eaf245af2aae 4 / FatFs module is a free software that opened under license policy of
el18gs 2:eaf245af2aae 5 / following conditions.
el18gs 2:eaf245af2aae 6 /
el18gs 2:eaf245af2aae 7 / Copyright (C) 2015, ChaN, all right reserved.
el18gs 2:eaf245af2aae 8 /
el18gs 2:eaf245af2aae 9 / 1. Redistributions of source code must retain the above copyright notice,
el18gs 2:eaf245af2aae 10 / this condition and the following disclaimer.
el18gs 2:eaf245af2aae 11 /
el18gs 2:eaf245af2aae 12 / This software is provided by the copyright holder and contributors "AS IS"
el18gs 2:eaf245af2aae 13 / and any warranties related to this software are DISCLAIMED.
el18gs 2:eaf245af2aae 14 / The copyright owner or contributors be NOT LIABLE for any damages caused
el18gs 2:eaf245af2aae 15 / by use of this software.
el18gs 2:eaf245af2aae 16 /---------------------------------------------------------------------------*/
el18gs 2:eaf245af2aae 17
el18gs 2:eaf245af2aae 18
el18gs 2:eaf245af2aae 19 #ifndef _FATFS
el18gs 2:eaf245af2aae 20 #define _FATFS 64180 /* Revision ID */
el18gs 2:eaf245af2aae 21
el18gs 2:eaf245af2aae 22 #ifdef __cplusplus
el18gs 2:eaf245af2aae 23 extern "C" {
el18gs 2:eaf245af2aae 24 #endif
el18gs 2:eaf245af2aae 25
el18gs 2:eaf245af2aae 26 #include "integer.h" /* Basic integer types */
el18gs 2:eaf245af2aae 27 #include "ffconf.h" /* FatFs configuration options */
el18gs 2:eaf245af2aae 28 #if _FATFS != _FFCONF
el18gs 2:eaf245af2aae 29 #error Wrong configuration file (ffconf.h).
el18gs 2:eaf245af2aae 30 #endif
el18gs 2:eaf245af2aae 31
el18gs 2:eaf245af2aae 32
el18gs 2:eaf245af2aae 33
el18gs 2:eaf245af2aae 34 /* Definitions of volume management */
el18gs 2:eaf245af2aae 35
el18gs 2:eaf245af2aae 36 #if _MULTI_PARTITION /* Multiple partition configuration */
el18gs 2:eaf245af2aae 37 typedef struct {
el18gs 2:eaf245af2aae 38 BYTE pd; /* Physical drive number */
el18gs 2:eaf245af2aae 39 BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
el18gs 2:eaf245af2aae 40 } PARTITION;
el18gs 2:eaf245af2aae 41 extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
el18gs 2:eaf245af2aae 42 #define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
el18gs 2:eaf245af2aae 43 #define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
el18gs 2:eaf245af2aae 44
el18gs 2:eaf245af2aae 45 #else /* Single partition configuration */
el18gs 2:eaf245af2aae 46 #define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
el18gs 2:eaf245af2aae 47 #define LD2PT(vol) 0 /* Find first valid partition or in SFD */
el18gs 2:eaf245af2aae 48
el18gs 2:eaf245af2aae 49 #endif
el18gs 2:eaf245af2aae 50
el18gs 2:eaf245af2aae 51
el18gs 2:eaf245af2aae 52
el18gs 2:eaf245af2aae 53 /* Type of path name strings on FatFs API */
el18gs 2:eaf245af2aae 54
el18gs 2:eaf245af2aae 55 #if _LFN_UNICODE /* Unicode string */
el18gs 2:eaf245af2aae 56 #if !_USE_LFN
el18gs 2:eaf245af2aae 57 #error _LFN_UNICODE must be 0 at non-LFN cfg.
el18gs 2:eaf245af2aae 58 #endif
el18gs 2:eaf245af2aae 59 #ifndef _INC_TCHAR
el18gs 2:eaf245af2aae 60 typedef WCHAR TCHAR;
el18gs 2:eaf245af2aae 61 #define _T(x) L ## x
el18gs 2:eaf245af2aae 62 #define _TEXT(x) L ## x
el18gs 2:eaf245af2aae 63 #endif
el18gs 2:eaf245af2aae 64
el18gs 2:eaf245af2aae 65 #else /* ANSI/OEM string */
el18gs 2:eaf245af2aae 66 #ifndef _INC_TCHAR
el18gs 2:eaf245af2aae 67 typedef char TCHAR;
el18gs 2:eaf245af2aae 68 #define _T(x) x
el18gs 2:eaf245af2aae 69 #define _TEXT(x) x
el18gs 2:eaf245af2aae 70 #endif
el18gs 2:eaf245af2aae 71
el18gs 2:eaf245af2aae 72 #endif
el18gs 2:eaf245af2aae 73
el18gs 2:eaf245af2aae 74
el18gs 2:eaf245af2aae 75
el18gs 2:eaf245af2aae 76 /* File system object structure (FATFS) */
el18gs 2:eaf245af2aae 77
el18gs 2:eaf245af2aae 78 typedef struct {
el18gs 2:eaf245af2aae 79 BYTE fs_type; /* FAT sub-type (0:Not mounted) */
el18gs 2:eaf245af2aae 80 BYTE drv; /* Physical drive number */
el18gs 2:eaf245af2aae 81 BYTE csize; /* Sectors per cluster (1,2,4...128) */
el18gs 2:eaf245af2aae 82 BYTE n_fats; /* Number of FAT copies (1 or 2) */
el18gs 2:eaf245af2aae 83 BYTE wflag; /* win[] flag (b0:dirty) */
el18gs 2:eaf245af2aae 84 BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */
el18gs 2:eaf245af2aae 85 WORD id; /* File system mount ID */
el18gs 2:eaf245af2aae 86 WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
el18gs 2:eaf245af2aae 87 #if _MAX_SS != _MIN_SS
el18gs 2:eaf245af2aae 88 WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
el18gs 2:eaf245af2aae 89 #endif
el18gs 2:eaf245af2aae 90 #if _FS_REENTRANT
el18gs 2:eaf245af2aae 91 _SYNC_t sobj; /* Identifier of sync object */
el18gs 2:eaf245af2aae 92 #endif
el18gs 2:eaf245af2aae 93 #if !_FS_READONLY
el18gs 2:eaf245af2aae 94 DWORD last_clust; /* Last allocated cluster */
el18gs 2:eaf245af2aae 95 DWORD free_clust; /* Number of free clusters */
el18gs 2:eaf245af2aae 96 #endif
el18gs 2:eaf245af2aae 97 #if _FS_RPATH
el18gs 2:eaf245af2aae 98 DWORD cdir; /* Current directory start cluster (0:root) */
el18gs 2:eaf245af2aae 99 #endif
el18gs 2:eaf245af2aae 100 DWORD n_fatent; /* Number of FAT entries, = number of clusters + 2 */
el18gs 2:eaf245af2aae 101 DWORD fsize; /* Sectors per FAT */
el18gs 2:eaf245af2aae 102 DWORD volbase; /* Volume start sector */
el18gs 2:eaf245af2aae 103 DWORD fatbase; /* FAT start sector */
el18gs 2:eaf245af2aae 104 DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
el18gs 2:eaf245af2aae 105 DWORD database; /* Data start sector */
el18gs 2:eaf245af2aae 106 DWORD winsect; /* Current sector appearing in the win[] */
el18gs 2:eaf245af2aae 107 BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */
el18gs 2:eaf245af2aae 108 } FATFS;
el18gs 2:eaf245af2aae 109
el18gs 2:eaf245af2aae 110
el18gs 2:eaf245af2aae 111
el18gs 2:eaf245af2aae 112 /* File object structure (FIL) */
el18gs 2:eaf245af2aae 113
el18gs 2:eaf245af2aae 114 typedef struct {
el18gs 2:eaf245af2aae 115 FATFS* fs; /* Pointer to the related file system object (**do not change order**) */
el18gs 2:eaf245af2aae 116 WORD id; /* Owner file system mount ID (**do not change order**) */
el18gs 2:eaf245af2aae 117 BYTE flag; /* Status flags */
el18gs 2:eaf245af2aae 118 BYTE err; /* Abort flag (error code) */
el18gs 2:eaf245af2aae 119 DWORD fptr; /* File read/write pointer (Zeroed on file open) */
el18gs 2:eaf245af2aae 120 DWORD fsize; /* File size */
el18gs 2:eaf245af2aae 121 DWORD sclust; /* File start cluster (0:no cluster chain, always 0 when fsize is 0) */
el18gs 2:eaf245af2aae 122 DWORD clust; /* Current cluster of fpter (not valid when fprt is 0) */
el18gs 2:eaf245af2aae 123 DWORD dsect; /* Sector number appearing in buf[] (0:invalid) */
el18gs 2:eaf245af2aae 124 #if !_FS_READONLY
el18gs 2:eaf245af2aae 125 DWORD dir_sect; /* Sector number containing the directory entry */
el18gs 2:eaf245af2aae 126 BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */
el18gs 2:eaf245af2aae 127 #endif
el18gs 2:eaf245af2aae 128 #if _USE_FASTSEEK
el18gs 2:eaf245af2aae 129 DWORD* cltbl; /* Pointer to the cluster link map table (Nulled on file open) */
el18gs 2:eaf245af2aae 130 #endif
el18gs 2:eaf245af2aae 131 #if _FS_LOCK
el18gs 2:eaf245af2aae 132 UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */
el18gs 2:eaf245af2aae 133 #endif
el18gs 2:eaf245af2aae 134 #if !_FS_TINY
el18gs 2:eaf245af2aae 135 BYTE buf[_MAX_SS]; /* File private data read/write window */
el18gs 2:eaf245af2aae 136 #endif
el18gs 2:eaf245af2aae 137 } FIL;
el18gs 2:eaf245af2aae 138
el18gs 2:eaf245af2aae 139
el18gs 2:eaf245af2aae 140
el18gs 2:eaf245af2aae 141 /* Directory object structure (FATFS_DIR) */
el18gs 2:eaf245af2aae 142
el18gs 2:eaf245af2aae 143 typedef struct {
el18gs 2:eaf245af2aae 144 FATFS* fs; /* Pointer to the owner file system object (**do not change order**) */
el18gs 2:eaf245af2aae 145 WORD id; /* Owner file system mount ID (**do not change order**) */
el18gs 2:eaf245af2aae 146 WORD index; /* Current read/write index number */
el18gs 2:eaf245af2aae 147 DWORD sclust; /* Table start cluster (0:Root dir) */
el18gs 2:eaf245af2aae 148 DWORD clust; /* Current cluster */
el18gs 2:eaf245af2aae 149 DWORD sect; /* Current sector */
el18gs 2:eaf245af2aae 150 BYTE* dir; /* Pointer to the current SFN entry in the win[] */
el18gs 2:eaf245af2aae 151 BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
el18gs 2:eaf245af2aae 152 #if _FS_LOCK
el18gs 2:eaf245af2aae 153 UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
el18gs 2:eaf245af2aae 154 #endif
el18gs 2:eaf245af2aae 155 #if _USE_LFN
el18gs 2:eaf245af2aae 156 WCHAR* lfn; /* Pointer to the LFN working buffer */
el18gs 2:eaf245af2aae 157 WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
el18gs 2:eaf245af2aae 158 #endif
el18gs 2:eaf245af2aae 159 #if _USE_FIND
el18gs 2:eaf245af2aae 160 const TCHAR* pat; /* Pointer to the name matching pattern */
el18gs 2:eaf245af2aae 161 #endif
el18gs 2:eaf245af2aae 162 } FATFS_DIR;
el18gs 2:eaf245af2aae 163
el18gs 2:eaf245af2aae 164
el18gs 2:eaf245af2aae 165
el18gs 2:eaf245af2aae 166 /* File information structure (FILINFO) */
el18gs 2:eaf245af2aae 167
el18gs 2:eaf245af2aae 168 typedef struct {
el18gs 2:eaf245af2aae 169 DWORD fsize; /* File size */
el18gs 2:eaf245af2aae 170 WORD fdate; /* Last modified date */
el18gs 2:eaf245af2aae 171 WORD ftime; /* Last modified time */
el18gs 2:eaf245af2aae 172 BYTE fattrib; /* Attribute */
el18gs 2:eaf245af2aae 173 TCHAR fname[13]; /* Short file name (8.3 format) */
el18gs 2:eaf245af2aae 174 #if _USE_LFN
el18gs 2:eaf245af2aae 175 TCHAR* lfname; /* Pointer to the LFN buffer */
el18gs 2:eaf245af2aae 176 UINT lfsize; /* Size of LFN buffer in TCHAR */
el18gs 2:eaf245af2aae 177 #endif
el18gs 2:eaf245af2aae 178 } FILINFO;
el18gs 2:eaf245af2aae 179
el18gs 2:eaf245af2aae 180
el18gs 2:eaf245af2aae 181
el18gs 2:eaf245af2aae 182 /* File function return code (FRESULT) */
el18gs 2:eaf245af2aae 183
el18gs 2:eaf245af2aae 184 typedef enum {
el18gs 2:eaf245af2aae 185 FR_OK = 0, /* (0) Succeeded */
el18gs 2:eaf245af2aae 186 FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
el18gs 2:eaf245af2aae 187 FR_INT_ERR, /* (2) Assertion failed */
el18gs 2:eaf245af2aae 188 FR_NOT_READY, /* (3) The physical drive cannot work */
el18gs 2:eaf245af2aae 189 FR_NO_FILE, /* (4) Could not find the file */
el18gs 2:eaf245af2aae 190 FR_NO_PATH, /* (5) Could not find the path */
el18gs 2:eaf245af2aae 191 FR_INVALID_NAME, /* (6) The path name format is invalid */
el18gs 2:eaf245af2aae 192 FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
el18gs 2:eaf245af2aae 193 FR_EXIST, /* (8) Access denied due to prohibited access */
el18gs 2:eaf245af2aae 194 FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
el18gs 2:eaf245af2aae 195 FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
el18gs 2:eaf245af2aae 196 FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
el18gs 2:eaf245af2aae 197 FR_NOT_ENABLED, /* (12) The volume has no work area */
el18gs 2:eaf245af2aae 198 FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
el18gs 2:eaf245af2aae 199 FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
el18gs 2:eaf245af2aae 200 FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
el18gs 2:eaf245af2aae 201 FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
el18gs 2:eaf245af2aae 202 FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
el18gs 2:eaf245af2aae 203 FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_LOCK */
el18gs 2:eaf245af2aae 204 FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
el18gs 2:eaf245af2aae 205 } FRESULT;
el18gs 2:eaf245af2aae 206
el18gs 2:eaf245af2aae 207
el18gs 2:eaf245af2aae 208
el18gs 2:eaf245af2aae 209 /*--------------------------------------------------------------*/
el18gs 2:eaf245af2aae 210 /* FatFs module application interface */
el18gs 2:eaf245af2aae 211
el18gs 2:eaf245af2aae 212 FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */
el18gs 2:eaf245af2aae 213 FRESULT f_close (FIL* fp); /* Close an open file object */
el18gs 2:eaf245af2aae 214 FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from a file */
el18gs 2:eaf245af2aae 215 FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to a file */
el18gs 2:eaf245af2aae 216 FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */
el18gs 2:eaf245af2aae 217 FRESULT f_lseek (FIL* fp, DWORD ofs); /* Move file pointer of a file object */
el18gs 2:eaf245af2aae 218 FRESULT f_truncate (FIL* fp); /* Truncate file */
el18gs 2:eaf245af2aae 219 FRESULT f_sync (FIL* fp); /* Flush cached data of a writing file */
el18gs 2:eaf245af2aae 220 FRESULT f_opendir (FATFS_DIR* dp, const TCHAR* path); /* Open a directory */
el18gs 2:eaf245af2aae 221 FRESULT f_closedir (FATFS_DIR* dp); /* Close an open directory */
el18gs 2:eaf245af2aae 222 FRESULT f_readdir (FATFS_DIR* dp, FILINFO* fno); /* Read a directory item */
el18gs 2:eaf245af2aae 223 FRESULT f_findfirst (FATFS_DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */
el18gs 2:eaf245af2aae 224 FRESULT f_findnext (FATFS_DIR* dp, FILINFO* fno); /* Find next file */
el18gs 2:eaf245af2aae 225 FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */
el18gs 2:eaf245af2aae 226 FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */
el18gs 2:eaf245af2aae 227 FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */
el18gs 2:eaf245af2aae 228 FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */
el18gs 2:eaf245af2aae 229 FRESULT f_chmod (const TCHAR* path, BYTE attr, BYTE mask); /* Change attribute of the file/dir */
el18gs 2:eaf245af2aae 230 FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change times-tamp of the file/dir */
el18gs 2:eaf245af2aae 231 FRESULT f_chdir (const TCHAR* path); /* Change current directory */
el18gs 2:eaf245af2aae 232 FRESULT f_chdrive (const TCHAR* path); /* Change current drive */
el18gs 2:eaf245af2aae 233 FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */
el18gs 2:eaf245af2aae 234 FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */
el18gs 2:eaf245af2aae 235 FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */
el18gs 2:eaf245af2aae 236 FRESULT f_setlabel (const TCHAR* label); /* Set volume label */
el18gs 2:eaf245af2aae 237 FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */
el18gs 2:eaf245af2aae 238 FRESULT f_mkfs (const TCHAR* path, BYTE sfd, UINT au); /* Create a file system on the volume */
el18gs 2:eaf245af2aae 239 FRESULT f_fdisk (BYTE pdrv, const DWORD szt[], void* work); /* Divide a physical drive into some partitions */
el18gs 2:eaf245af2aae 240 int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */
el18gs 2:eaf245af2aae 241 int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */
el18gs 2:eaf245af2aae 242 int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */
el18gs 2:eaf245af2aae 243 TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
el18gs 2:eaf245af2aae 244
el18gs 2:eaf245af2aae 245 #define f_eof(fp) ((int)((fp)->fptr == (fp)->fsize))
el18gs 2:eaf245af2aae 246 #define f_error(fp) ((fp)->err)
el18gs 2:eaf245af2aae 247 #define f_tell(fp) ((fp)->fptr)
el18gs 2:eaf245af2aae 248 #define f_size(fp) ((fp)->fsize)
el18gs 2:eaf245af2aae 249 #define f_rewind(fp) f_lseek((fp), 0)
el18gs 2:eaf245af2aae 250 #define f_rewinddir(dp) f_readdir((dp), 0)
el18gs 2:eaf245af2aae 251
el18gs 2:eaf245af2aae 252 #ifndef EOF
el18gs 2:eaf245af2aae 253 #define EOF (-1)
el18gs 2:eaf245af2aae 254 #endif
el18gs 2:eaf245af2aae 255
el18gs 2:eaf245af2aae 256
el18gs 2:eaf245af2aae 257
el18gs 2:eaf245af2aae 258
el18gs 2:eaf245af2aae 259 /*--------------------------------------------------------------*/
el18gs 2:eaf245af2aae 260 /* Additional user defined functions */
el18gs 2:eaf245af2aae 261
el18gs 2:eaf245af2aae 262 /* RTC function */
el18gs 2:eaf245af2aae 263 #if !_FS_READONLY && !_FS_NORTC
el18gs 2:eaf245af2aae 264 DWORD get_fattime (void);
el18gs 2:eaf245af2aae 265 #endif
el18gs 2:eaf245af2aae 266
el18gs 2:eaf245af2aae 267 /* Unicode support functions */
el18gs 2:eaf245af2aae 268 #if _USE_LFN /* Unicode - OEM code conversion */
el18gs 2:eaf245af2aae 269 WCHAR ff_convert (WCHAR chr, UINT dir); /* OEM-Unicode bidirectional conversion */
el18gs 2:eaf245af2aae 270 WCHAR ff_wtoupper (WCHAR chr); /* Unicode upper-case conversion */
el18gs 2:eaf245af2aae 271 #if _USE_LFN == 3 /* Memory functions */
el18gs 2:eaf245af2aae 272 void* ff_memalloc (UINT msize); /* Allocate memory block */
el18gs 2:eaf245af2aae 273 void ff_memfree (void* mblock); /* Free memory block */
el18gs 2:eaf245af2aae 274 #endif
el18gs 2:eaf245af2aae 275 #endif
el18gs 2:eaf245af2aae 276
el18gs 2:eaf245af2aae 277 /* Sync functions */
el18gs 2:eaf245af2aae 278 #if _FS_REENTRANT
el18gs 2:eaf245af2aae 279 int ff_cre_syncobj (BYTE vol, _SYNC_t* sobj); /* Create a sync object */
el18gs 2:eaf245af2aae 280 int ff_req_grant (_SYNC_t sobj); /* Lock sync object */
el18gs 2:eaf245af2aae 281 void ff_rel_grant (_SYNC_t sobj); /* Unlock sync object */
el18gs 2:eaf245af2aae 282 int ff_del_syncobj (_SYNC_t sobj); /* Delete a sync object */
el18gs 2:eaf245af2aae 283 #endif
el18gs 2:eaf245af2aae 284
el18gs 2:eaf245af2aae 285
el18gs 2:eaf245af2aae 286
el18gs 2:eaf245af2aae 287
el18gs 2:eaf245af2aae 288 /*--------------------------------------------------------------*/
el18gs 2:eaf245af2aae 289 /* Flags and offset address */
el18gs 2:eaf245af2aae 290
el18gs 2:eaf245af2aae 291
el18gs 2:eaf245af2aae 292 /* File access control and file status flags (FIL.flag) */
el18gs 2:eaf245af2aae 293
el18gs 2:eaf245af2aae 294 #define FA_READ 0x01
el18gs 2:eaf245af2aae 295 #define FA_OPEN_EXISTING 0x00
el18gs 2:eaf245af2aae 296
el18gs 2:eaf245af2aae 297 #if !_FS_READONLY
el18gs 2:eaf245af2aae 298 #define FA_WRITE 0x02
el18gs 2:eaf245af2aae 299 #define FA_CREATE_NEW 0x04
el18gs 2:eaf245af2aae 300 #define FA_CREATE_ALWAYS 0x08
el18gs 2:eaf245af2aae 301 #define FA_OPEN_ALWAYS 0x10
el18gs 2:eaf245af2aae 302 #define FA__WRITTEN 0x20
el18gs 2:eaf245af2aae 303 #define FA__DIRTY 0x40
el18gs 2:eaf245af2aae 304 #endif
el18gs 2:eaf245af2aae 305
el18gs 2:eaf245af2aae 306
el18gs 2:eaf245af2aae 307 /* FAT sub type (FATFS.fs_type) */
el18gs 2:eaf245af2aae 308
el18gs 2:eaf245af2aae 309 #define FS_FAT12 1
el18gs 2:eaf245af2aae 310 #define FS_FAT16 2
el18gs 2:eaf245af2aae 311 #define FS_FAT32 3
el18gs 2:eaf245af2aae 312
el18gs 2:eaf245af2aae 313
el18gs 2:eaf245af2aae 314 /* File attribute bits for directory entry */
el18gs 2:eaf245af2aae 315
el18gs 2:eaf245af2aae 316 #define AM_RDO 0x01 /* Read only */
el18gs 2:eaf245af2aae 317 #define AM_HID 0x02 /* Hidden */
el18gs 2:eaf245af2aae 318 #define AM_SYS 0x04 /* System */
el18gs 2:eaf245af2aae 319 #define AM_VOL 0x08 /* Volume label */
el18gs 2:eaf245af2aae 320 #define AM_LFN 0x0F /* LFN entry */
el18gs 2:eaf245af2aae 321 #define AM_DIR 0x10 /* Directory */
el18gs 2:eaf245af2aae 322 #define AM_ARC 0x20 /* Archive */
el18gs 2:eaf245af2aae 323 #define AM_MASK 0x3F /* Mask of defined bits */
el18gs 2:eaf245af2aae 324
el18gs 2:eaf245af2aae 325
el18gs 2:eaf245af2aae 326 /* Fast seek feature */
el18gs 2:eaf245af2aae 327 #define CREATE_LINKMAP 0xFFFFFFFF
el18gs 2:eaf245af2aae 328
el18gs 2:eaf245af2aae 329
el18gs 2:eaf245af2aae 330
el18gs 2:eaf245af2aae 331 /*--------------------------------*/
el18gs 2:eaf245af2aae 332 /* Multi-byte word access macros */
el18gs 2:eaf245af2aae 333
el18gs 2:eaf245af2aae 334 #if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
el18gs 2:eaf245af2aae 335 #define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
el18gs 2:eaf245af2aae 336 #define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
el18gs 2:eaf245af2aae 337 #define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
el18gs 2:eaf245af2aae 338 #define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
el18gs 2:eaf245af2aae 339 #else /* Use byte-by-byte access to the FAT structure */
el18gs 2:eaf245af2aae 340 #define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
el18gs 2:eaf245af2aae 341 #define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
el18gs 2:eaf245af2aae 342 #define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
el18gs 2:eaf245af2aae 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)
el18gs 2:eaf245af2aae 344 #endif
el18gs 2:eaf245af2aae 345
el18gs 2:eaf245af2aae 346 #ifdef __cplusplus
el18gs 2:eaf245af2aae 347 }
el18gs 2:eaf245af2aae 348 #endif
el18gs 2:eaf245af2aae 349
el18gs 2:eaf245af2aae 350 #endif /* _FATFS */