Madeline Kistler / SDFileSystem2

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.

FATFileSystem/ChaN/ff.h@0:812e8b0b2832, 2020-11-17 (annotated)

Committer:
mkistler
Date:
Tue Nov 17 20:30:08 2020 +0000
Revision:
0:812e8b0b2832
Final draft.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mkistler 0:812e8b0b2832 1 /*---------------------------------------------------------------------------/
mkistler 0:812e8b0b2832 2 / FatFs - FAT file system module include R0.11a (C)ChaN, 2015
mkistler 0:812e8b0b2832 3 /----------------------------------------------------------------------------/
mkistler 0:812e8b0b2832 4 / FatFs module is a free software that opened under license policy of
mkistler 0:812e8b0b2832 5 / following conditions.
mkistler 0:812e8b0b2832 6 /
mkistler 0:812e8b0b2832 7 / Copyright (C) 2015, ChaN, all right reserved.
mkistler 0:812e8b0b2832 8 /
mkistler 0:812e8b0b2832 9 / 1. Redistributions of source code must retain the above copyright notice,
mkistler 0:812e8b0b2832 10 / this condition and the following disclaimer.
mkistler 0:812e8b0b2832 11 /
mkistler 0:812e8b0b2832 12 / This software is provided by the copyright holder and contributors "AS IS"
mkistler 0:812e8b0b2832 13 / and any warranties related to this software are DISCLAIMED.
mkistler 0:812e8b0b2832 14 / The copyright owner or contributors be NOT LIABLE for any damages caused
mkistler 0:812e8b0b2832 15 / by use of this software.
mkistler 0:812e8b0b2832 16 /---------------------------------------------------------------------------*/
mkistler 0:812e8b0b2832 17
mkistler 0:812e8b0b2832 18
mkistler 0:812e8b0b2832 19 #ifndef _FATFS
mkistler 0:812e8b0b2832 20 #define _FATFS 64180 /* Revision ID */
mkistler 0:812e8b0b2832 21
mkistler 0:812e8b0b2832 22 #ifdef __cplusplus
mkistler 0:812e8b0b2832 23 extern "C" {
mkistler 0:812e8b0b2832 24 #endif
mkistler 0:812e8b0b2832 25
mkistler 0:812e8b0b2832 26 #include "integer.h" /* Basic integer types */
mkistler 0:812e8b0b2832 27 #include "ffconf.h" /* FatFs configuration options */
mkistler 0:812e8b0b2832 28 #if _FATFS != _FFCONF
mkistler 0:812e8b0b2832 29 #error Wrong configuration file (ffconf.h).
mkistler 0:812e8b0b2832 30 #endif
mkistler 0:812e8b0b2832 31
mkistler 0:812e8b0b2832 32
mkistler 0:812e8b0b2832 33
mkistler 0:812e8b0b2832 34 /* Definitions of volume management */
mkistler 0:812e8b0b2832 35
mkistler 0:812e8b0b2832 36 #if _MULTI_PARTITION /* Multiple partition configuration */
mkistler 0:812e8b0b2832 37 typedef struct {
mkistler 0:812e8b0b2832 38 BYTE pd; /* Physical drive number */
mkistler 0:812e8b0b2832 39 BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
mkistler 0:812e8b0b2832 40 } PARTITION;
mkistler 0:812e8b0b2832 41 extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
mkistler 0:812e8b0b2832 42 #define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
mkistler 0:812e8b0b2832 43 #define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
mkistler 0:812e8b0b2832 44
mkistler 0:812e8b0b2832 45 #else /* Single partition configuration */
mkistler 0:812e8b0b2832 46 #define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
mkistler 0:812e8b0b2832 47 #define LD2PT(vol) 0 /* Find first valid partition or in SFD */
mkistler 0:812e8b0b2832 48
mkistler 0:812e8b0b2832 49 #endif
mkistler 0:812e8b0b2832 50
mkistler 0:812e8b0b2832 51
mkistler 0:812e8b0b2832 52
mkistler 0:812e8b0b2832 53 /* Type of path name strings on FatFs API */
mkistler 0:812e8b0b2832 54
mkistler 0:812e8b0b2832 55 #if _LFN_UNICODE /* Unicode string */
mkistler 0:812e8b0b2832 56 #if !_USE_LFN
mkistler 0:812e8b0b2832 57 #error _LFN_UNICODE must be 0 at non-LFN cfg.
mkistler 0:812e8b0b2832 58 #endif
mkistler 0:812e8b0b2832 59 #ifndef _INC_TCHAR
mkistler 0:812e8b0b2832 60 typedef WCHAR TCHAR;
mkistler 0:812e8b0b2832 61 #define _T(x) L ## x
mkistler 0:812e8b0b2832 62 #define _TEXT(x) L ## x
mkistler 0:812e8b0b2832 63 #endif
mkistler 0:812e8b0b2832 64
mkistler 0:812e8b0b2832 65 #else /* ANSI/OEM string */
mkistler 0:812e8b0b2832 66 #ifndef _INC_TCHAR
mkistler 0:812e8b0b2832 67 typedef char TCHAR;
mkistler 0:812e8b0b2832 68 #define _T(x) x
mkistler 0:812e8b0b2832 69 #define _TEXT(x) x
mkistler 0:812e8b0b2832 70 #endif
mkistler 0:812e8b0b2832 71
mkistler 0:812e8b0b2832 72 #endif
mkistler 0:812e8b0b2832 73
mkistler 0:812e8b0b2832 74
mkistler 0:812e8b0b2832 75
mkistler 0:812e8b0b2832 76 /* File system object structure (FATFS) */
mkistler 0:812e8b0b2832 77
mkistler 0:812e8b0b2832 78 typedef struct {
mkistler 0:812e8b0b2832 79 BYTE fs_type; /* FAT sub-type (0:Not mounted) */
mkistler 0:812e8b0b2832 80 BYTE drv; /* Physical drive number */
mkistler 0:812e8b0b2832 81 BYTE csize; /* Sectors per cluster (1,2,4...128) */
mkistler 0:812e8b0b2832 82 BYTE n_fats; /* Number of FAT copies (1 or 2) */
mkistler 0:812e8b0b2832 83 BYTE wflag; /* win[] flag (b0:dirty) */
mkistler 0:812e8b0b2832 84 BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */
mkistler 0:812e8b0b2832 85 WORD id; /* File system mount ID */
mkistler 0:812e8b0b2832 86 WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
mkistler 0:812e8b0b2832 87 #if _MAX_SS != _MIN_SS
mkistler 0:812e8b0b2832 88 WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
mkistler 0:812e8b0b2832 89 #endif
mkistler 0:812e8b0b2832 90 #if _FS_REENTRANT
mkistler 0:812e8b0b2832 91 _SYNC_t sobj; /* Identifier of sync object */
mkistler 0:812e8b0b2832 92 #endif
mkistler 0:812e8b0b2832 93 #if !_FS_READONLY
mkistler 0:812e8b0b2832 94 DWORD last_clust; /* Last allocated cluster */
mkistler 0:812e8b0b2832 95 DWORD free_clust; /* Number of free clusters */
mkistler 0:812e8b0b2832 96 #endif
mkistler 0:812e8b0b2832 97 #if _FS_RPATH
mkistler 0:812e8b0b2832 98 DWORD cdir; /* Current directory start cluster (0:root) */
mkistler 0:812e8b0b2832 99 #endif
mkistler 0:812e8b0b2832 100 DWORD n_fatent; /* Number of FAT entries, = number of clusters + 2 */
mkistler 0:812e8b0b2832 101 DWORD fsize; /* Sectors per FAT */
mkistler 0:812e8b0b2832 102 DWORD volbase; /* Volume start sector */
mkistler 0:812e8b0b2832 103 DWORD fatbase; /* FAT start sector */
mkistler 0:812e8b0b2832 104 DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
mkistler 0:812e8b0b2832 105 DWORD database; /* Data start sector */
mkistler 0:812e8b0b2832 106 DWORD winsect; /* Current sector appearing in the win[] */
mkistler 0:812e8b0b2832 107 BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */
mkistler 0:812e8b0b2832 108 } FATFS;
mkistler 0:812e8b0b2832 109
mkistler 0:812e8b0b2832 110
mkistler 0:812e8b0b2832 111
mkistler 0:812e8b0b2832 112 /* File object structure (FIL) */
mkistler 0:812e8b0b2832 113
mkistler 0:812e8b0b2832 114 typedef struct {
mkistler 0:812e8b0b2832 115 FATFS* fs; /* Pointer to the related file system object (**do not change order**) */
mkistler 0:812e8b0b2832 116 WORD id; /* Owner file system mount ID (**do not change order**) */
mkistler 0:812e8b0b2832 117 BYTE flag; /* Status flags */
mkistler 0:812e8b0b2832 118 BYTE err; /* Abort flag (error code) */
mkistler 0:812e8b0b2832 119 DWORD fptr; /* File read/write pointer (Zeroed on file open) */
mkistler 0:812e8b0b2832 120 DWORD fsize; /* File size */
mkistler 0:812e8b0b2832 121 DWORD sclust; /* File start cluster (0:no cluster chain, always 0 when fsize is 0) */
mkistler 0:812e8b0b2832 122 DWORD clust; /* Current cluster of fpter (not valid when fprt is 0) */
mkistler 0:812e8b0b2832 123 DWORD dsect; /* Sector number appearing in buf[] (0:invalid) */
mkistler 0:812e8b0b2832 124 #if !_FS_READONLY
mkistler 0:812e8b0b2832 125 DWORD dir_sect; /* Sector number containing the directory entry */
mkistler 0:812e8b0b2832 126 BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */
mkistler 0:812e8b0b2832 127 #endif
mkistler 0:812e8b0b2832 128 #if _USE_FASTSEEK
mkistler 0:812e8b0b2832 129 DWORD* cltbl; /* Pointer to the cluster link map table (Nulled on file open) */
mkistler 0:812e8b0b2832 130 #endif
mkistler 0:812e8b0b2832 131 #if _FS_LOCK
mkistler 0:812e8b0b2832 132 UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */
mkistler 0:812e8b0b2832 133 #endif
mkistler 0:812e8b0b2832 134 #if !_FS_TINY
mkistler 0:812e8b0b2832 135 BYTE buf[_MAX_SS]; /* File private data read/write window */
mkistler 0:812e8b0b2832 136 #endif
mkistler 0:812e8b0b2832 137 } FIL;
mkistler 0:812e8b0b2832 138
mkistler 0:812e8b0b2832 139
mkistler 0:812e8b0b2832 140
mkistler 0:812e8b0b2832 141 /* Directory object structure (FATFS_DIR) */
mkistler 0:812e8b0b2832 142
mkistler 0:812e8b0b2832 143 typedef struct {
mkistler 0:812e8b0b2832 144 FATFS* fs; /* Pointer to the owner file system object (**do not change order**) */
mkistler 0:812e8b0b2832 145 WORD id; /* Owner file system mount ID (**do not change order**) */
mkistler 0:812e8b0b2832 146 WORD index; /* Current read/write index number */
mkistler 0:812e8b0b2832 147 DWORD sclust; /* Table start cluster (0:Root dir) */
mkistler 0:812e8b0b2832 148 DWORD clust; /* Current cluster */
mkistler 0:812e8b0b2832 149 DWORD sect; /* Current sector */
mkistler 0:812e8b0b2832 150 BYTE* dir; /* Pointer to the current SFN entry in the win[] */
mkistler 0:812e8b0b2832 151 BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
mkistler 0:812e8b0b2832 152 #if _FS_LOCK
mkistler 0:812e8b0b2832 153 UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
mkistler 0:812e8b0b2832 154 #endif
mkistler 0:812e8b0b2832 155 #if _USE_LFN
mkistler 0:812e8b0b2832 156 WCHAR* lfn; /* Pointer to the LFN working buffer */
mkistler 0:812e8b0b2832 157 WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
mkistler 0:812e8b0b2832 158 #endif
mkistler 0:812e8b0b2832 159 #if _USE_FIND
mkistler 0:812e8b0b2832 160 const TCHAR* pat; /* Pointer to the name matching pattern */
mkistler 0:812e8b0b2832 161 #endif
mkistler 0:812e8b0b2832 162 } FATFS_DIR;
mkistler 0:812e8b0b2832 163
mkistler 0:812e8b0b2832 164
mkistler 0:812e8b0b2832 165
mkistler 0:812e8b0b2832 166 /* File information structure (FILINFO) */
mkistler 0:812e8b0b2832 167
mkistler 0:812e8b0b2832 168 typedef struct {
mkistler 0:812e8b0b2832 169 DWORD fsize; /* File size */
mkistler 0:812e8b0b2832 170 WORD fdate; /* Last modified date */
mkistler 0:812e8b0b2832 171 WORD ftime; /* Last modified time */
mkistler 0:812e8b0b2832 172 BYTE fattrib; /* Attribute */
mkistler 0:812e8b0b2832 173 TCHAR fname[13]; /* Short file name (8.3 format) */
mkistler 0:812e8b0b2832 174 #if _USE_LFN
mkistler 0:812e8b0b2832 175 TCHAR* lfname; /* Pointer to the LFN buffer */
mkistler 0:812e8b0b2832 176 UINT lfsize; /* Size of LFN buffer in TCHAR */
mkistler 0:812e8b0b2832 177 #endif
mkistler 0:812e8b0b2832 178 } FILINFO;
mkistler 0:812e8b0b2832 179
mkistler 0:812e8b0b2832 180
mkistler 0:812e8b0b2832 181
mkistler 0:812e8b0b2832 182 /* File function return code (FRESULT) */
mkistler 0:812e8b0b2832 183
mkistler 0:812e8b0b2832 184 typedef enum {
mkistler 0:812e8b0b2832 185 FR_OK = 0, /* (0) Succeeded */
mkistler 0:812e8b0b2832 186 FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
mkistler 0:812e8b0b2832 187 FR_INT_ERR, /* (2) Assertion failed */
mkistler 0:812e8b0b2832 188 FR_NOT_READY, /* (3) The physical drive cannot work */
mkistler 0:812e8b0b2832 189 FR_NO_FILE, /* (4) Could not find the file */
mkistler 0:812e8b0b2832 190 FR_NO_PATH, /* (5) Could not find the path */
mkistler 0:812e8b0b2832 191 FR_INVALID_NAME, /* (6) The path name format is invalid */
mkistler 0:812e8b0b2832 192 FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
mkistler 0:812e8b0b2832 193 FR_EXIST, /* (8) Access denied due to prohibited access */
mkistler 0:812e8b0b2832 194 FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
mkistler 0:812e8b0b2832 195 FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
mkistler 0:812e8b0b2832 196 FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
mkistler 0:812e8b0b2832 197 FR_NOT_ENABLED, /* (12) The volume has no work area */
mkistler 0:812e8b0b2832 198 FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
mkistler 0:812e8b0b2832 199 FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
mkistler 0:812e8b0b2832 200 FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
mkistler 0:812e8b0b2832 201 FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
mkistler 0:812e8b0b2832 202 FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
mkistler 0:812e8b0b2832 203 FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_LOCK */
mkistler 0:812e8b0b2832 204 FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
mkistler 0:812e8b0b2832 205 } FRESULT;
mkistler 0:812e8b0b2832 206
mkistler 0:812e8b0b2832 207
mkistler 0:812e8b0b2832 208
mkistler 0:812e8b0b2832 209 /*--------------------------------------------------------------*/
mkistler 0:812e8b0b2832 210 /* FatFs module application interface */
mkistler 0:812e8b0b2832 211
mkistler 0:812e8b0b2832 212 FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */
mkistler 0:812e8b0b2832 213 FRESULT f_close (FIL* fp); /* Close an open file object */
mkistler 0:812e8b0b2832 214 FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from a file */
mkistler 0:812e8b0b2832 215 FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to a file */
mkistler 0:812e8b0b2832 216 FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */
mkistler 0:812e8b0b2832 217 FRESULT f_lseek (FIL* fp, DWORD ofs); /* Move file pointer of a file object */
mkistler 0:812e8b0b2832 218 FRESULT f_truncate (FIL* fp); /* Truncate file */
mkistler 0:812e8b0b2832 219 FRESULT f_sync (FIL* fp); /* Flush cached data of a writing file */
mkistler 0:812e8b0b2832 220 FRESULT f_opendir (FATFS_DIR* dp, const TCHAR* path); /* Open a directory */
mkistler 0:812e8b0b2832 221 FRESULT f_closedir (FATFS_DIR* dp); /* Close an open directory */
mkistler 0:812e8b0b2832 222 FRESULT f_readdir (FATFS_DIR* dp, FILINFO* fno); /* Read a directory item */
mkistler 0:812e8b0b2832 223 FRESULT f_findfirst (FATFS_DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */
mkistler 0:812e8b0b2832 224 FRESULT f_findnext (FATFS_DIR* dp, FILINFO* fno); /* Find next file */
mkistler 0:812e8b0b2832 225 FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */
mkistler 0:812e8b0b2832 226 FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */
mkistler 0:812e8b0b2832 227 FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */
mkistler 0:812e8b0b2832 228 FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */
mkistler 0:812e8b0b2832 229 FRESULT f_chmod (const TCHAR* path, BYTE attr, BYTE mask); /* Change attribute of the file/dir */
mkistler 0:812e8b0b2832 230 FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change times-tamp of the file/dir */
mkistler 0:812e8b0b2832 231 FRESULT f_chdir (const TCHAR* path); /* Change current directory */
mkistler 0:812e8b0b2832 232 FRESULT f_chdrive (const TCHAR* path); /* Change current drive */
mkistler 0:812e8b0b2832 233 FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */
mkistler 0:812e8b0b2832 234 FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */
mkistler 0:812e8b0b2832 235 FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */
mkistler 0:812e8b0b2832 236 FRESULT f_setlabel (const TCHAR* label); /* Set volume label */
mkistler 0:812e8b0b2832 237 FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */
mkistler 0:812e8b0b2832 238 FRESULT f_mkfs (const TCHAR* path, BYTE sfd, UINT au); /* Create a file system on the volume */
mkistler 0:812e8b0b2832 239 FRESULT f_fdisk (BYTE pdrv, const DWORD szt[], void* work); /* Divide a physical drive into some partitions */
mkistler 0:812e8b0b2832 240 int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */
mkistler 0:812e8b0b2832 241 int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */
mkistler 0:812e8b0b2832 242 int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */
mkistler 0:812e8b0b2832 243 TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
mkistler 0:812e8b0b2832 244
mkistler 0:812e8b0b2832 245 #define f_eof(fp) ((int)((fp)->fptr == (fp)->fsize))
mkistler 0:812e8b0b2832 246 #define f_error(fp) ((fp)->err)
mkistler 0:812e8b0b2832 247 #define f_tell(fp) ((fp)->fptr)
mkistler 0:812e8b0b2832 248 #define f_size(fp) ((fp)->fsize)
mkistler 0:812e8b0b2832 249 #define f_rewind(fp) f_lseek((fp), 0)
mkistler 0:812e8b0b2832 250 #define f_rewinddir(dp) f_readdir((dp), 0)
mkistler 0:812e8b0b2832 251
mkistler 0:812e8b0b2832 252 #ifndef EOF
mkistler 0:812e8b0b2832 253 #define EOF (-1)
mkistler 0:812e8b0b2832 254 #endif
mkistler 0:812e8b0b2832 255
mkistler 0:812e8b0b2832 256
mkistler 0:812e8b0b2832 257
mkistler 0:812e8b0b2832 258
mkistler 0:812e8b0b2832 259 /*--------------------------------------------------------------*/
mkistler 0:812e8b0b2832 260 /* Additional user defined functions */
mkistler 0:812e8b0b2832 261
mkistler 0:812e8b0b2832 262 /* RTC function */
mkistler 0:812e8b0b2832 263 #if !_FS_READONLY && !_FS_NORTC
mkistler 0:812e8b0b2832 264 DWORD get_fattime (void);
mkistler 0:812e8b0b2832 265 #endif
mkistler 0:812e8b0b2832 266
mkistler 0:812e8b0b2832 267 /* Unicode support functions */
mkistler 0:812e8b0b2832 268 #if _USE_LFN /* Unicode - OEM code conversion */
mkistler 0:812e8b0b2832 269 WCHAR ff_convert (WCHAR chr, UINT dir); /* OEM-Unicode bidirectional conversion */
mkistler 0:812e8b0b2832 270 WCHAR ff_wtoupper (WCHAR chr); /* Unicode upper-case conversion */
mkistler 0:812e8b0b2832 271 #if _USE_LFN == 3 /* Memory functions */
mkistler 0:812e8b0b2832 272 void* ff_memalloc (UINT msize); /* Allocate memory block */
mkistler 0:812e8b0b2832 273 void ff_memfree (void* mblock); /* Free memory block */
mkistler 0:812e8b0b2832 274 #endif
mkistler 0:812e8b0b2832 275 #endif
mkistler 0:812e8b0b2832 276
mkistler 0:812e8b0b2832 277 /* Sync functions */
mkistler 0:812e8b0b2832 278 #if _FS_REENTRANT
mkistler 0:812e8b0b2832 279 int ff_cre_syncobj (BYTE vol, _SYNC_t* sobj); /* Create a sync object */
mkistler 0:812e8b0b2832 280 int ff_req_grant (_SYNC_t sobj); /* Lock sync object */
mkistler 0:812e8b0b2832 281 void ff_rel_grant (_SYNC_t sobj); /* Unlock sync object */
mkistler 0:812e8b0b2832 282 int ff_del_syncobj (_SYNC_t sobj); /* Delete a sync object */
mkistler 0:812e8b0b2832 283 #endif
mkistler 0:812e8b0b2832 284
mkistler 0:812e8b0b2832 285
mkistler 0:812e8b0b2832 286
mkistler 0:812e8b0b2832 287
mkistler 0:812e8b0b2832 288 /*--------------------------------------------------------------*/
mkistler 0:812e8b0b2832 289 /* Flags and offset address */
mkistler 0:812e8b0b2832 290
mkistler 0:812e8b0b2832 291
mkistler 0:812e8b0b2832 292 /* File access control and file status flags (FIL.flag) */
mkistler 0:812e8b0b2832 293
mkistler 0:812e8b0b2832 294 #define FA_READ 0x01
mkistler 0:812e8b0b2832 295 #define FA_OPEN_EXISTING 0x00
mkistler 0:812e8b0b2832 296
mkistler 0:812e8b0b2832 297 #if !_FS_READONLY
mkistler 0:812e8b0b2832 298 #define FA_WRITE 0x02
mkistler 0:812e8b0b2832 299 #define FA_CREATE_NEW 0x04
mkistler 0:812e8b0b2832 300 #define FA_CREATE_ALWAYS 0x08
mkistler 0:812e8b0b2832 301 #define FA_OPEN_ALWAYS 0x10
mkistler 0:812e8b0b2832 302 #define FA__WRITTEN 0x20
mkistler 0:812e8b0b2832 303 #define FA__DIRTY 0x40
mkistler 0:812e8b0b2832 304 #endif
mkistler 0:812e8b0b2832 305
mkistler 0:812e8b0b2832 306
mkistler 0:812e8b0b2832 307 /* FAT sub type (FATFS.fs_type) */
mkistler 0:812e8b0b2832 308
mkistler 0:812e8b0b2832 309 #define FS_FAT12 1
mkistler 0:812e8b0b2832 310 #define FS_FAT16 2
mkistler 0:812e8b0b2832 311 #define FS_FAT32 3
mkistler 0:812e8b0b2832 312
mkistler 0:812e8b0b2832 313
mkistler 0:812e8b0b2832 314 /* File attribute bits for directory entry */
mkistler 0:812e8b0b2832 315
mkistler 0:812e8b0b2832 316 #define AM_RDO 0x01 /* Read only */
mkistler 0:812e8b0b2832 317 #define AM_HID 0x02 /* Hidden */
mkistler 0:812e8b0b2832 318 #define AM_SYS 0x04 /* System */
mkistler 0:812e8b0b2832 319 #define AM_VOL 0x08 /* Volume label */
mkistler 0:812e8b0b2832 320 #define AM_LFN 0x0F /* LFN entry */
mkistler 0:812e8b0b2832 321 #define AM_DIR 0x10 /* Directory */
mkistler 0:812e8b0b2832 322 #define AM_ARC 0x20 /* Archive */
mkistler 0:812e8b0b2832 323 #define AM_MASK 0x3F /* Mask of defined bits */
mkistler 0:812e8b0b2832 324
mkistler 0:812e8b0b2832 325
mkistler 0:812e8b0b2832 326 /* Fast seek feature */
mkistler 0:812e8b0b2832 327 #define CREATE_LINKMAP 0xFFFFFFFF
mkistler 0:812e8b0b2832 328
mkistler 0:812e8b0b2832 329
mkistler 0:812e8b0b2832 330
mkistler 0:812e8b0b2832 331 /*--------------------------------*/
mkistler 0:812e8b0b2832 332 /* Multi-byte word access macros */
mkistler 0:812e8b0b2832 333
mkistler 0:812e8b0b2832 334 #if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
mkistler 0:812e8b0b2832 335 #define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
mkistler 0:812e8b0b2832 336 #define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
mkistler 0:812e8b0b2832 337 #define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
mkistler 0:812e8b0b2832 338 #define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
mkistler 0:812e8b0b2832 339 #else /* Use byte-by-byte access to the FAT structure */
mkistler 0:812e8b0b2832 340 #define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
mkistler 0:812e8b0b2832 341 #define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
mkistler 0:812e8b0b2832 342 #define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
mkistler 0:812e8b0b2832 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)
mkistler 0:812e8b0b2832 344 #endif
mkistler 0:812e8b0b2832 345
mkistler 0:812e8b0b2832 346 #ifdef __cplusplus
mkistler 0:812e8b0b2832 347 }
mkistler 0:812e8b0b2832 348 #endif
mkistler 0:812e8b0b2832 349
mkistler 0:812e8b0b2832 350 #endif /* _FATFS */