Alek Boving / SDFileSystem8

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FATFileSystem/ChaN/ff.h@0:83e8ad3d9a65, 2020-11-12 (annotated)

Committer:
alekboving
Date:
Thu Nov 12 15:20:15 2020 +0000
Revision:
0:83e8ad3d9a65
initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
alekboving 0:83e8ad3d9a65 1 /*---------------------------------------------------------------------------/
alekboving 0:83e8ad3d9a65 2 / FatFs - FAT file system module include R0.11a (C)ChaN, 2015
alekboving 0:83e8ad3d9a65 3 /----------------------------------------------------------------------------/
alekboving 0:83e8ad3d9a65 4 / FatFs module is a free software that opened under license policy of
alekboving 0:83e8ad3d9a65 5 / following conditions.
alekboving 0:83e8ad3d9a65 6 /
alekboving 0:83e8ad3d9a65 7 / Copyright (C) 2015, ChaN, all right reserved.
alekboving 0:83e8ad3d9a65 8 /
alekboving 0:83e8ad3d9a65 9 / 1. Redistributions of source code must retain the above copyright notice,
alekboving 0:83e8ad3d9a65 10 / this condition and the following disclaimer.
alekboving 0:83e8ad3d9a65 11 /
alekboving 0:83e8ad3d9a65 12 / This software is provided by the copyright holder and contributors "AS IS"
alekboving 0:83e8ad3d9a65 13 / and any warranties related to this software are DISCLAIMED.
alekboving 0:83e8ad3d9a65 14 / The copyright owner or contributors be NOT LIABLE for any damages caused
alekboving 0:83e8ad3d9a65 15 / by use of this software.
alekboving 0:83e8ad3d9a65 16 /---------------------------------------------------------------------------*/
alekboving 0:83e8ad3d9a65 17
alekboving 0:83e8ad3d9a65 18
alekboving 0:83e8ad3d9a65 19 #ifndef _FATFS
alekboving 0:83e8ad3d9a65 20 #define _FATFS 64180 /* Revision ID */
alekboving 0:83e8ad3d9a65 21
alekboving 0:83e8ad3d9a65 22 #ifdef __cplusplus
alekboving 0:83e8ad3d9a65 23 extern "C" {
alekboving 0:83e8ad3d9a65 24 #endif
alekboving 0:83e8ad3d9a65 25
alekboving 0:83e8ad3d9a65 26 #include "integer.h" /* Basic integer types */
alekboving 0:83e8ad3d9a65 27 #include "ffconf.h" /* FatFs configuration options */
alekboving 0:83e8ad3d9a65 28 #if _FATFS != _FFCONF
alekboving 0:83e8ad3d9a65 29 #error Wrong configuration file (ffconf.h).
alekboving 0:83e8ad3d9a65 30 #endif
alekboving 0:83e8ad3d9a65 31
alekboving 0:83e8ad3d9a65 32
alekboving 0:83e8ad3d9a65 33
alekboving 0:83e8ad3d9a65 34 /* Definitions of volume management */
alekboving 0:83e8ad3d9a65 35
alekboving 0:83e8ad3d9a65 36 #if _MULTI_PARTITION /* Multiple partition configuration */
alekboving 0:83e8ad3d9a65 37 typedef struct {
alekboving 0:83e8ad3d9a65 38 BYTE pd; /* Physical drive number */
alekboving 0:83e8ad3d9a65 39 BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
alekboving 0:83e8ad3d9a65 40 } PARTITION;
alekboving 0:83e8ad3d9a65 41 extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
alekboving 0:83e8ad3d9a65 42 #define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
alekboving 0:83e8ad3d9a65 43 #define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
alekboving 0:83e8ad3d9a65 44
alekboving 0:83e8ad3d9a65 45 #else /* Single partition configuration */
alekboving 0:83e8ad3d9a65 46 #define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
alekboving 0:83e8ad3d9a65 47 #define LD2PT(vol) 0 /* Find first valid partition or in SFD */
alekboving 0:83e8ad3d9a65 48
alekboving 0:83e8ad3d9a65 49 #endif
alekboving 0:83e8ad3d9a65 50
alekboving 0:83e8ad3d9a65 51
alekboving 0:83e8ad3d9a65 52
alekboving 0:83e8ad3d9a65 53 /* Type of path name strings on FatFs API */
alekboving 0:83e8ad3d9a65 54
alekboving 0:83e8ad3d9a65 55 #if _LFN_UNICODE /* Unicode string */
alekboving 0:83e8ad3d9a65 56 #if !_USE_LFN
alekboving 0:83e8ad3d9a65 57 #error _LFN_UNICODE must be 0 at non-LFN cfg.
alekboving 0:83e8ad3d9a65 58 #endif
alekboving 0:83e8ad3d9a65 59 #ifndef _INC_TCHAR
alekboving 0:83e8ad3d9a65 60 typedef WCHAR TCHAR;
alekboving 0:83e8ad3d9a65 61 #define _T(x) L ## x
alekboving 0:83e8ad3d9a65 62 #define _TEXT(x) L ## x
alekboving 0:83e8ad3d9a65 63 #endif
alekboving 0:83e8ad3d9a65 64
alekboving 0:83e8ad3d9a65 65 #else /* ANSI/OEM string */
alekboving 0:83e8ad3d9a65 66 #ifndef _INC_TCHAR
alekboving 0:83e8ad3d9a65 67 typedef char TCHAR;
alekboving 0:83e8ad3d9a65 68 #define _T(x) x
alekboving 0:83e8ad3d9a65 69 #define _TEXT(x) x
alekboving 0:83e8ad3d9a65 70 #endif
alekboving 0:83e8ad3d9a65 71
alekboving 0:83e8ad3d9a65 72 #endif
alekboving 0:83e8ad3d9a65 73
alekboving 0:83e8ad3d9a65 74
alekboving 0:83e8ad3d9a65 75
alekboving 0:83e8ad3d9a65 76 /* File system object structure (FATFS) */
alekboving 0:83e8ad3d9a65 77
alekboving 0:83e8ad3d9a65 78 typedef struct {
alekboving 0:83e8ad3d9a65 79 BYTE fs_type; /* FAT sub-type (0:Not mounted) */
alekboving 0:83e8ad3d9a65 80 BYTE drv; /* Physical drive number */
alekboving 0:83e8ad3d9a65 81 BYTE csize; /* Sectors per cluster (1,2,4...128) */
alekboving 0:83e8ad3d9a65 82 BYTE n_fats; /* Number of FAT copies (1 or 2) */
alekboving 0:83e8ad3d9a65 83 BYTE wflag; /* win[] flag (b0:dirty) */
alekboving 0:83e8ad3d9a65 84 BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */
alekboving 0:83e8ad3d9a65 85 WORD id; /* File system mount ID */
alekboving 0:83e8ad3d9a65 86 WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
alekboving 0:83e8ad3d9a65 87 #if _MAX_SS != _MIN_SS
alekboving 0:83e8ad3d9a65 88 WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
alekboving 0:83e8ad3d9a65 89 #endif
alekboving 0:83e8ad3d9a65 90 #if _FS_REENTRANT
alekboving 0:83e8ad3d9a65 91 _SYNC_t sobj; /* Identifier of sync object */
alekboving 0:83e8ad3d9a65 92 #endif
alekboving 0:83e8ad3d9a65 93 #if !_FS_READONLY
alekboving 0:83e8ad3d9a65 94 DWORD last_clust; /* Last allocated cluster */
alekboving 0:83e8ad3d9a65 95 DWORD free_clust; /* Number of free clusters */
alekboving 0:83e8ad3d9a65 96 #endif
alekboving 0:83e8ad3d9a65 97 #if _FS_RPATH
alekboving 0:83e8ad3d9a65 98 DWORD cdir; /* Current directory start cluster (0:root) */
alekboving 0:83e8ad3d9a65 99 #endif
alekboving 0:83e8ad3d9a65 100 DWORD n_fatent; /* Number of FAT entries, = number of clusters + 2 */
alekboving 0:83e8ad3d9a65 101 DWORD fsize; /* Sectors per FAT */
alekboving 0:83e8ad3d9a65 102 DWORD volbase; /* Volume start sector */
alekboving 0:83e8ad3d9a65 103 DWORD fatbase; /* FAT start sector */
alekboving 0:83e8ad3d9a65 104 DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
alekboving 0:83e8ad3d9a65 105 DWORD database; /* Data start sector */
alekboving 0:83e8ad3d9a65 106 DWORD winsect; /* Current sector appearing in the win[] */
alekboving 0:83e8ad3d9a65 107 BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */
alekboving 0:83e8ad3d9a65 108 } FATFS;
alekboving 0:83e8ad3d9a65 109
alekboving 0:83e8ad3d9a65 110
alekboving 0:83e8ad3d9a65 111
alekboving 0:83e8ad3d9a65 112 /* File object structure (FIL) */
alekboving 0:83e8ad3d9a65 113
alekboving 0:83e8ad3d9a65 114 typedef struct {
alekboving 0:83e8ad3d9a65 115 FATFS* fs; /* Pointer to the related file system object (**do not change order**) */
alekboving 0:83e8ad3d9a65 116 WORD id; /* Owner file system mount ID (**do not change order**) */
alekboving 0:83e8ad3d9a65 117 BYTE flag; /* Status flags */
alekboving 0:83e8ad3d9a65 118 BYTE err; /* Abort flag (error code) */
alekboving 0:83e8ad3d9a65 119 DWORD fptr; /* File read/write pointer (Zeroed on file open) */
alekboving 0:83e8ad3d9a65 120 DWORD fsize; /* File size */
alekboving 0:83e8ad3d9a65 121 DWORD sclust; /* File start cluster (0:no cluster chain, always 0 when fsize is 0) */
alekboving 0:83e8ad3d9a65 122 DWORD clust; /* Current cluster of fpter (not valid when fprt is 0) */
alekboving 0:83e8ad3d9a65 123 DWORD dsect; /* Sector number appearing in buf[] (0:invalid) */
alekboving 0:83e8ad3d9a65 124 #if !_FS_READONLY
alekboving 0:83e8ad3d9a65 125 DWORD dir_sect; /* Sector number containing the directory entry */
alekboving 0:83e8ad3d9a65 126 BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */
alekboving 0:83e8ad3d9a65 127 #endif
alekboving 0:83e8ad3d9a65 128 #if _USE_FASTSEEK
alekboving 0:83e8ad3d9a65 129 DWORD* cltbl; /* Pointer to the cluster link map table (Nulled on file open) */
alekboving 0:83e8ad3d9a65 130 #endif
alekboving 0:83e8ad3d9a65 131 #if _FS_LOCK
alekboving 0:83e8ad3d9a65 132 UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */
alekboving 0:83e8ad3d9a65 133 #endif
alekboving 0:83e8ad3d9a65 134 #if !_FS_TINY
alekboving 0:83e8ad3d9a65 135 BYTE buf[_MAX_SS]; /* File private data read/write window */
alekboving 0:83e8ad3d9a65 136 #endif
alekboving 0:83e8ad3d9a65 137 } FIL;
alekboving 0:83e8ad3d9a65 138
alekboving 0:83e8ad3d9a65 139
alekboving 0:83e8ad3d9a65 140
alekboving 0:83e8ad3d9a65 141 /* Directory object structure (FATFS_DIR) */
alekboving 0:83e8ad3d9a65 142
alekboving 0:83e8ad3d9a65 143 typedef struct {
alekboving 0:83e8ad3d9a65 144 FATFS* fs; /* Pointer to the owner file system object (**do not change order**) */
alekboving 0:83e8ad3d9a65 145 WORD id; /* Owner file system mount ID (**do not change order**) */
alekboving 0:83e8ad3d9a65 146 WORD index; /* Current read/write index number */
alekboving 0:83e8ad3d9a65 147 DWORD sclust; /* Table start cluster (0:Root dir) */
alekboving 0:83e8ad3d9a65 148 DWORD clust; /* Current cluster */
alekboving 0:83e8ad3d9a65 149 DWORD sect; /* Current sector */
alekboving 0:83e8ad3d9a65 150 BYTE* dir; /* Pointer to the current SFN entry in the win[] */
alekboving 0:83e8ad3d9a65 151 BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
alekboving 0:83e8ad3d9a65 152 #if _FS_LOCK
alekboving 0:83e8ad3d9a65 153 UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
alekboving 0:83e8ad3d9a65 154 #endif
alekboving 0:83e8ad3d9a65 155 #if _USE_LFN
alekboving 0:83e8ad3d9a65 156 WCHAR* lfn; /* Pointer to the LFN working buffer */
alekboving 0:83e8ad3d9a65 157 WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
alekboving 0:83e8ad3d9a65 158 #endif
alekboving 0:83e8ad3d9a65 159 #if _USE_FIND
alekboving 0:83e8ad3d9a65 160 const TCHAR* pat; /* Pointer to the name matching pattern */
alekboving 0:83e8ad3d9a65 161 #endif
alekboving 0:83e8ad3d9a65 162 } FATFS_DIR;
alekboving 0:83e8ad3d9a65 163
alekboving 0:83e8ad3d9a65 164
alekboving 0:83e8ad3d9a65 165
alekboving 0:83e8ad3d9a65 166 /* File information structure (FILINFO) */
alekboving 0:83e8ad3d9a65 167
alekboving 0:83e8ad3d9a65 168 typedef struct {
alekboving 0:83e8ad3d9a65 169 DWORD fsize; /* File size */
alekboving 0:83e8ad3d9a65 170 WORD fdate; /* Last modified date */
alekboving 0:83e8ad3d9a65 171 WORD ftime; /* Last modified time */
alekboving 0:83e8ad3d9a65 172 BYTE fattrib; /* Attribute */
alekboving 0:83e8ad3d9a65 173 TCHAR fname[13]; /* Short file name (8.3 format) */
alekboving 0:83e8ad3d9a65 174 #if _USE_LFN
alekboving 0:83e8ad3d9a65 175 TCHAR* lfname; /* Pointer to the LFN buffer */
alekboving 0:83e8ad3d9a65 176 UINT lfsize; /* Size of LFN buffer in TCHAR */
alekboving 0:83e8ad3d9a65 177 #endif
alekboving 0:83e8ad3d9a65 178 } FILINFO;
alekboving 0:83e8ad3d9a65 179
alekboving 0:83e8ad3d9a65 180
alekboving 0:83e8ad3d9a65 181
alekboving 0:83e8ad3d9a65 182 /* File function return code (FRESULT) */
alekboving 0:83e8ad3d9a65 183
alekboving 0:83e8ad3d9a65 184 typedef enum {
alekboving 0:83e8ad3d9a65 185 FR_OK = 0, /* (0) Succeeded */
alekboving 0:83e8ad3d9a65 186 FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
alekboving 0:83e8ad3d9a65 187 FR_INT_ERR, /* (2) Assertion failed */
alekboving 0:83e8ad3d9a65 188 FR_NOT_READY, /* (3) The physical drive cannot work */
alekboving 0:83e8ad3d9a65 189 FR_NO_FILE, /* (4) Could not find the file */
alekboving 0:83e8ad3d9a65 190 FR_NO_PATH, /* (5) Could not find the path */
alekboving 0:83e8ad3d9a65 191 FR_INVALID_NAME, /* (6) The path name format is invalid */
alekboving 0:83e8ad3d9a65 192 FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
alekboving 0:83e8ad3d9a65 193 FR_EXIST, /* (8) Access denied due to prohibited access */
alekboving 0:83e8ad3d9a65 194 FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
alekboving 0:83e8ad3d9a65 195 FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
alekboving 0:83e8ad3d9a65 196 FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
alekboving 0:83e8ad3d9a65 197 FR_NOT_ENABLED, /* (12) The volume has no work area */
alekboving 0:83e8ad3d9a65 198 FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
alekboving 0:83e8ad3d9a65 199 FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
alekboving 0:83e8ad3d9a65 200 FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
alekboving 0:83e8ad3d9a65 201 FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
alekboving 0:83e8ad3d9a65 202 FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
alekboving 0:83e8ad3d9a65 203 FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_LOCK */
alekboving 0:83e8ad3d9a65 204 FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
alekboving 0:83e8ad3d9a65 205 } FRESULT;
alekboving 0:83e8ad3d9a65 206
alekboving 0:83e8ad3d9a65 207
alekboving 0:83e8ad3d9a65 208
alekboving 0:83e8ad3d9a65 209 /*--------------------------------------------------------------*/
alekboving 0:83e8ad3d9a65 210 /* FatFs module application interface */
alekboving 0:83e8ad3d9a65 211
alekboving 0:83e8ad3d9a65 212 FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */
alekboving 0:83e8ad3d9a65 213 FRESULT f_close (FIL* fp); /* Close an open file object */
alekboving 0:83e8ad3d9a65 214 FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from a file */
alekboving 0:83e8ad3d9a65 215 FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to a file */
alekboving 0:83e8ad3d9a65 216 FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */
alekboving 0:83e8ad3d9a65 217 FRESULT f_lseek (FIL* fp, DWORD ofs); /* Move file pointer of a file object */
alekboving 0:83e8ad3d9a65 218 FRESULT f_truncate (FIL* fp); /* Truncate file */
alekboving 0:83e8ad3d9a65 219 FRESULT f_sync (FIL* fp); /* Flush cached data of a writing file */
alekboving 0:83e8ad3d9a65 220 FRESULT f_opendir (FATFS_DIR* dp, const TCHAR* path); /* Open a directory */
alekboving 0:83e8ad3d9a65 221 FRESULT f_closedir (FATFS_DIR* dp); /* Close an open directory */
alekboving 0:83e8ad3d9a65 222 FRESULT f_readdir (FATFS_DIR* dp, FILINFO* fno); /* Read a directory item */
alekboving 0:83e8ad3d9a65 223 FRESULT f_findfirst (FATFS_DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */
alekboving 0:83e8ad3d9a65 224 FRESULT f_findnext (FATFS_DIR* dp, FILINFO* fno); /* Find next file */
alekboving 0:83e8ad3d9a65 225 FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */
alekboving 0:83e8ad3d9a65 226 FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */
alekboving 0:83e8ad3d9a65 227 FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */
alekboving 0:83e8ad3d9a65 228 FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */
alekboving 0:83e8ad3d9a65 229 FRESULT f_chmod (const TCHAR* path, BYTE attr, BYTE mask); /* Change attribute of the file/dir */
alekboving 0:83e8ad3d9a65 230 FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change times-tamp of the file/dir */
alekboving 0:83e8ad3d9a65 231 FRESULT f_chdir (const TCHAR* path); /* Change current directory */
alekboving 0:83e8ad3d9a65 232 FRESULT f_chdrive (const TCHAR* path); /* Change current drive */
alekboving 0:83e8ad3d9a65 233 FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */
alekboving 0:83e8ad3d9a65 234 FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */
alekboving 0:83e8ad3d9a65 235 FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */
alekboving 0:83e8ad3d9a65 236 FRESULT f_setlabel (const TCHAR* label); /* Set volume label */
alekboving 0:83e8ad3d9a65 237 FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */
alekboving 0:83e8ad3d9a65 238 FRESULT f_mkfs (const TCHAR* path, BYTE sfd, UINT au); /* Create a file system on the volume */
alekboving 0:83e8ad3d9a65 239 FRESULT f_fdisk (BYTE pdrv, const DWORD szt[], void* work); /* Divide a physical drive into some partitions */
alekboving 0:83e8ad3d9a65 240 int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */
alekboving 0:83e8ad3d9a65 241 int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */
alekboving 0:83e8ad3d9a65 242 int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */
alekboving 0:83e8ad3d9a65 243 TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
alekboving 0:83e8ad3d9a65 244
alekboving 0:83e8ad3d9a65 245 #define f_eof(fp) ((int)((fp)->fptr == (fp)->fsize))
alekboving 0:83e8ad3d9a65 246 #define f_error(fp) ((fp)->err)
alekboving 0:83e8ad3d9a65 247 #define f_tell(fp) ((fp)->fptr)
alekboving 0:83e8ad3d9a65 248 #define f_size(fp) ((fp)->fsize)
alekboving 0:83e8ad3d9a65 249 #define f_rewind(fp) f_lseek((fp), 0)
alekboving 0:83e8ad3d9a65 250 #define f_rewinddir(dp) f_readdir((dp), 0)
alekboving 0:83e8ad3d9a65 251
alekboving 0:83e8ad3d9a65 252 #ifndef EOF
alekboving 0:83e8ad3d9a65 253 #define EOF (-1)
alekboving 0:83e8ad3d9a65 254 #endif
alekboving 0:83e8ad3d9a65 255
alekboving 0:83e8ad3d9a65 256
alekboving 0:83e8ad3d9a65 257
alekboving 0:83e8ad3d9a65 258
alekboving 0:83e8ad3d9a65 259 /*--------------------------------------------------------------*/
alekboving 0:83e8ad3d9a65 260 /* Additional user defined functions */
alekboving 0:83e8ad3d9a65 261
alekboving 0:83e8ad3d9a65 262 /* RTC function */
alekboving 0:83e8ad3d9a65 263 #if !_FS_READONLY && !_FS_NORTC
alekboving 0:83e8ad3d9a65 264 DWORD get_fattime (void);
alekboving 0:83e8ad3d9a65 265 #endif
alekboving 0:83e8ad3d9a65 266
alekboving 0:83e8ad3d9a65 267 /* Unicode support functions */
alekboving 0:83e8ad3d9a65 268 #if _USE_LFN /* Unicode - OEM code conversion */
alekboving 0:83e8ad3d9a65 269 WCHAR ff_convert (WCHAR chr, UINT dir); /* OEM-Unicode bidirectional conversion */
alekboving 0:83e8ad3d9a65 270 WCHAR ff_wtoupper (WCHAR chr); /* Unicode upper-case conversion */
alekboving 0:83e8ad3d9a65 271 #if _USE_LFN == 3 /* Memory functions */
alekboving 0:83e8ad3d9a65 272 void* ff_memalloc (UINT msize); /* Allocate memory block */
alekboving 0:83e8ad3d9a65 273 void ff_memfree (void* mblock); /* Free memory block */
alekboving 0:83e8ad3d9a65 274 #endif
alekboving 0:83e8ad3d9a65 275 #endif
alekboving 0:83e8ad3d9a65 276
alekboving 0:83e8ad3d9a65 277 /* Sync functions */
alekboving 0:83e8ad3d9a65 278 #if _FS_REENTRANT
alekboving 0:83e8ad3d9a65 279 int ff_cre_syncobj (BYTE vol, _SYNC_t* sobj); /* Create a sync object */
alekboving 0:83e8ad3d9a65 280 int ff_req_grant (_SYNC_t sobj); /* Lock sync object */
alekboving 0:83e8ad3d9a65 281 void ff_rel_grant (_SYNC_t sobj); /* Unlock sync object */
alekboving 0:83e8ad3d9a65 282 int ff_del_syncobj (_SYNC_t sobj); /* Delete a sync object */
alekboving 0:83e8ad3d9a65 283 #endif
alekboving 0:83e8ad3d9a65 284
alekboving 0:83e8ad3d9a65 285
alekboving 0:83e8ad3d9a65 286
alekboving 0:83e8ad3d9a65 287
alekboving 0:83e8ad3d9a65 288 /*--------------------------------------------------------------*/
alekboving 0:83e8ad3d9a65 289 /* Flags and offset address */
alekboving 0:83e8ad3d9a65 290
alekboving 0:83e8ad3d9a65 291
alekboving 0:83e8ad3d9a65 292 /* File access control and file status flags (FIL.flag) */
alekboving 0:83e8ad3d9a65 293
alekboving 0:83e8ad3d9a65 294 #define FA_READ 0x01
alekboving 0:83e8ad3d9a65 295 #define FA_OPEN_EXISTING 0x00
alekboving 0:83e8ad3d9a65 296
alekboving 0:83e8ad3d9a65 297 #if !_FS_READONLY
alekboving 0:83e8ad3d9a65 298 #define FA_WRITE 0x02
alekboving 0:83e8ad3d9a65 299 #define FA_CREATE_NEW 0x04
alekboving 0:83e8ad3d9a65 300 #define FA_CREATE_ALWAYS 0x08
alekboving 0:83e8ad3d9a65 301 #define FA_OPEN_ALWAYS 0x10
alekboving 0:83e8ad3d9a65 302 #define FA__WRITTEN 0x20
alekboving 0:83e8ad3d9a65 303 #define FA__DIRTY 0x40
alekboving 0:83e8ad3d9a65 304 #endif
alekboving 0:83e8ad3d9a65 305
alekboving 0:83e8ad3d9a65 306
alekboving 0:83e8ad3d9a65 307 /* FAT sub type (FATFS.fs_type) */
alekboving 0:83e8ad3d9a65 308
alekboving 0:83e8ad3d9a65 309 #define FS_FAT12 1
alekboving 0:83e8ad3d9a65 310 #define FS_FAT16 2
alekboving 0:83e8ad3d9a65 311 #define FS_FAT32 3
alekboving 0:83e8ad3d9a65 312
alekboving 0:83e8ad3d9a65 313
alekboving 0:83e8ad3d9a65 314 /* File attribute bits for directory entry */
alekboving 0:83e8ad3d9a65 315
alekboving 0:83e8ad3d9a65 316 #define AM_RDO 0x01 /* Read only */
alekboving 0:83e8ad3d9a65 317 #define AM_HID 0x02 /* Hidden */
alekboving 0:83e8ad3d9a65 318 #define AM_SYS 0x04 /* System */
alekboving 0:83e8ad3d9a65 319 #define AM_VOL 0x08 /* Volume label */
alekboving 0:83e8ad3d9a65 320 #define AM_LFN 0x0F /* LFN entry */
alekboving 0:83e8ad3d9a65 321 #define AM_DIR 0x10 /* Directory */
alekboving 0:83e8ad3d9a65 322 #define AM_ARC 0x20 /* Archive */
alekboving 0:83e8ad3d9a65 323 #define AM_MASK 0x3F /* Mask of defined bits */
alekboving 0:83e8ad3d9a65 324
alekboving 0:83e8ad3d9a65 325
alekboving 0:83e8ad3d9a65 326 /* Fast seek feature */
alekboving 0:83e8ad3d9a65 327 #define CREATE_LINKMAP 0xFFFFFFFF
alekboving 0:83e8ad3d9a65 328
alekboving 0:83e8ad3d9a65 329
alekboving 0:83e8ad3d9a65 330
alekboving 0:83e8ad3d9a65 331 /*--------------------------------*/
alekboving 0:83e8ad3d9a65 332 /* Multi-byte word access macros */
alekboving 0:83e8ad3d9a65 333
alekboving 0:83e8ad3d9a65 334 #if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
alekboving 0:83e8ad3d9a65 335 #define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
alekboving 0:83e8ad3d9a65 336 #define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
alekboving 0:83e8ad3d9a65 337 #define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
alekboving 0:83e8ad3d9a65 338 #define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
alekboving 0:83e8ad3d9a65 339 #else /* Use byte-by-byte access to the FAT structure */
alekboving 0:83e8ad3d9a65 340 #define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
alekboving 0:83e8ad3d9a65 341 #define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
alekboving 0:83e8ad3d9a65 342 #define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
alekboving 0:83e8ad3d9a65 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)
alekboving 0:83e8ad3d9a65 344 #endif
alekboving 0:83e8ad3d9a65 345
alekboving 0:83e8ad3d9a65 346 #ifdef __cplusplus
alekboving 0:83e8ad3d9a65 347 }
alekboving 0:83e8ad3d9a65 348 #endif
alekboving 0:83e8ad3d9a65 349
alekboving 0:83e8ad3d9a65 350 #endif /* _FATFS */