Jordan Beason / FATDirHandle1

Final

ff.h@0:e126ae11d20b, 2019-11-06 (annotated)

Committer:
jbeason3
Date:
Wed Nov 06 04:53:44 2019 +0000
Revision:
0:e126ae11d20b
Final

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jbeason3 0:e126ae11d20b 1 /*---------------------------------------------------------------------------/
jbeason3 0:e126ae11d20b 2 / FatFs - FAT file system module include R0.11a (C)ChaN, 2015
jbeason3 0:e126ae11d20b 3 /----------------------------------------------------------------------------/
jbeason3 0:e126ae11d20b 4 / FatFs module is a free software that opened under license policy of
jbeason3 0:e126ae11d20b 5 / following conditions.
jbeason3 0:e126ae11d20b 6 /
jbeason3 0:e126ae11d20b 7 / Copyright (C) 2015, ChaN, all right reserved.
jbeason3 0:e126ae11d20b 8 /
jbeason3 0:e126ae11d20b 9 / 1. Redistributions of source code must retain the above copyright notice,
jbeason3 0:e126ae11d20b 10 / this condition and the following disclaimer.
jbeason3 0:e126ae11d20b 11 /
jbeason3 0:e126ae11d20b 12 / This software is provided by the copyright holder and contributors "AS IS"
jbeason3 0:e126ae11d20b 13 / and any warranties related to this software are DISCLAIMED.
jbeason3 0:e126ae11d20b 14 / The copyright owner or contributors be NOT LIABLE for any damages caused
jbeason3 0:e126ae11d20b 15 / by use of this software.
jbeason3 0:e126ae11d20b 16 /---------------------------------------------------------------------------*/
jbeason3 0:e126ae11d20b 17
jbeason3 0:e126ae11d20b 18
jbeason3 0:e126ae11d20b 19 #ifndef _FATFS
jbeason3 0:e126ae11d20b 20 #define _FATFS 64180 /* Revision ID */
jbeason3 0:e126ae11d20b 21
jbeason3 0:e126ae11d20b 22 #ifdef __cplusplus
jbeason3 0:e126ae11d20b 23 extern "C" {
jbeason3 0:e126ae11d20b 24 #endif
jbeason3 0:e126ae11d20b 25
jbeason3 0:e126ae11d20b 26 #include "integer.h" /* Basic integer types */
jbeason3 0:e126ae11d20b 27 #include "ffconf.h" /* FatFs configuration options */
jbeason3 0:e126ae11d20b 28 #if _FATFS != _FFCONF
jbeason3 0:e126ae11d20b 29 #error Wrong configuration file (ffconf.h).
jbeason3 0:e126ae11d20b 30 #endif
jbeason3 0:e126ae11d20b 31
jbeason3 0:e126ae11d20b 32
jbeason3 0:e126ae11d20b 33
jbeason3 0:e126ae11d20b 34 /* Definitions of volume management */
jbeason3 0:e126ae11d20b 35
jbeason3 0:e126ae11d20b 36 #if _MULTI_PARTITION /* Multiple partition configuration */
jbeason3 0:e126ae11d20b 37 typedef struct {
jbeason3 0:e126ae11d20b 38 BYTE pd; /* Physical drive number */
jbeason3 0:e126ae11d20b 39 BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
jbeason3 0:e126ae11d20b 40 } PARTITION;
jbeason3 0:e126ae11d20b 41 extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
jbeason3 0:e126ae11d20b 42 #define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
jbeason3 0:e126ae11d20b 43 #define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
jbeason3 0:e126ae11d20b 44
jbeason3 0:e126ae11d20b 45 #else /* Single partition configuration */
jbeason3 0:e126ae11d20b 46 #define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
jbeason3 0:e126ae11d20b 47 #define LD2PT(vol) 0 /* Find first valid partition or in SFD */
jbeason3 0:e126ae11d20b 48
jbeason3 0:e126ae11d20b 49 #endif
jbeason3 0:e126ae11d20b 50
jbeason3 0:e126ae11d20b 51
jbeason3 0:e126ae11d20b 52
jbeason3 0:e126ae11d20b 53 /* Type of path name strings on FatFs API */
jbeason3 0:e126ae11d20b 54
jbeason3 0:e126ae11d20b 55 #if _LFN_UNICODE /* Unicode string */
jbeason3 0:e126ae11d20b 56 #if !_USE_LFN
jbeason3 0:e126ae11d20b 57 #error _LFN_UNICODE must be 0 at non-LFN cfg.
jbeason3 0:e126ae11d20b 58 #endif
jbeason3 0:e126ae11d20b 59 #ifndef _INC_TCHAR
jbeason3 0:e126ae11d20b 60 typedef WCHAR TCHAR;
jbeason3 0:e126ae11d20b 61 #define _T(x) L ## x
jbeason3 0:e126ae11d20b 62 #define _TEXT(x) L ## x
jbeason3 0:e126ae11d20b 63 #endif
jbeason3 0:e126ae11d20b 64
jbeason3 0:e126ae11d20b 65 #else /* ANSI/OEM string */
jbeason3 0:e126ae11d20b 66 #ifndef _INC_TCHAR
jbeason3 0:e126ae11d20b 67 typedef char TCHAR;
jbeason3 0:e126ae11d20b 68 #define _T(x) x
jbeason3 0:e126ae11d20b 69 #define _TEXT(x) x
jbeason3 0:e126ae11d20b 70 #endif
jbeason3 0:e126ae11d20b 71
jbeason3 0:e126ae11d20b 72 #endif
jbeason3 0:e126ae11d20b 73
jbeason3 0:e126ae11d20b 74
jbeason3 0:e126ae11d20b 75
jbeason3 0:e126ae11d20b 76 /* File system object structure (FATFS) */
jbeason3 0:e126ae11d20b 77
jbeason3 0:e126ae11d20b 78 typedef struct {
jbeason3 0:e126ae11d20b 79 BYTE fs_type; /* FAT sub-type (0:Not mounted) */
jbeason3 0:e126ae11d20b 80 BYTE drv; /* Physical drive number */
jbeason3 0:e126ae11d20b 81 BYTE csize; /* Sectors per cluster (1,2,4...128) */
jbeason3 0:e126ae11d20b 82 BYTE n_fats; /* Number of FAT copies (1 or 2) */
jbeason3 0:e126ae11d20b 83 BYTE wflag; /* win[] flag (b0:dirty) */
jbeason3 0:e126ae11d20b 84 BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */
jbeason3 0:e126ae11d20b 85 WORD id; /* File system mount ID */
jbeason3 0:e126ae11d20b 86 WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
jbeason3 0:e126ae11d20b 87 #if _MAX_SS != _MIN_SS
jbeason3 0:e126ae11d20b 88 WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
jbeason3 0:e126ae11d20b 89 #endif
jbeason3 0:e126ae11d20b 90 #if _FS_REENTRANT
jbeason3 0:e126ae11d20b 91 _SYNC_t sobj; /* Identifier of sync object */
jbeason3 0:e126ae11d20b 92 #endif
jbeason3 0:e126ae11d20b 93 #if !_FS_READONLY
jbeason3 0:e126ae11d20b 94 DWORD last_clust; /* Last allocated cluster */
jbeason3 0:e126ae11d20b 95 DWORD free_clust; /* Number of free clusters */
jbeason3 0:e126ae11d20b 96 #endif
jbeason3 0:e126ae11d20b 97 #if _FS_RPATH
jbeason3 0:e126ae11d20b 98 DWORD cdir; /* Current directory start cluster (0:root) */
jbeason3 0:e126ae11d20b 99 #endif
jbeason3 0:e126ae11d20b 100 DWORD n_fatent; /* Number of FAT entries, = number of clusters + 2 */
jbeason3 0:e126ae11d20b 101 DWORD fsize; /* Sectors per FAT */
jbeason3 0:e126ae11d20b 102 DWORD volbase; /* Volume start sector */
jbeason3 0:e126ae11d20b 103 DWORD fatbase; /* FAT start sector */
jbeason3 0:e126ae11d20b 104 DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
jbeason3 0:e126ae11d20b 105 DWORD database; /* Data start sector */
jbeason3 0:e126ae11d20b 106 DWORD winsect; /* Current sector appearing in the win[] */
jbeason3 0:e126ae11d20b 107 BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */
jbeason3 0:e126ae11d20b 108 } FATFS;
jbeason3 0:e126ae11d20b 109
jbeason3 0:e126ae11d20b 110
jbeason3 0:e126ae11d20b 111
jbeason3 0:e126ae11d20b 112 /* File object structure (FIL) */
jbeason3 0:e126ae11d20b 113
jbeason3 0:e126ae11d20b 114 typedef struct {
jbeason3 0:e126ae11d20b 115 FATFS* fs; /* Pointer to the related file system object (**do not change order**) */
jbeason3 0:e126ae11d20b 116 WORD id; /* Owner file system mount ID (**do not change order**) */
jbeason3 0:e126ae11d20b 117 BYTE flag; /* Status flags */
jbeason3 0:e126ae11d20b 118 BYTE err; /* Abort flag (error code) */
jbeason3 0:e126ae11d20b 119 DWORD fptr; /* File read/write pointer (Zeroed on file open) */
jbeason3 0:e126ae11d20b 120 DWORD fsize; /* File size */
jbeason3 0:e126ae11d20b 121 DWORD sclust; /* File start cluster (0:no cluster chain, always 0 when fsize is 0) */
jbeason3 0:e126ae11d20b 122 DWORD clust; /* Current cluster of fpter (not valid when fprt is 0) */
jbeason3 0:e126ae11d20b 123 DWORD dsect; /* Sector number appearing in buf[] (0:invalid) */
jbeason3 0:e126ae11d20b 124 #if !_FS_READONLY
jbeason3 0:e126ae11d20b 125 DWORD dir_sect; /* Sector number containing the directory entry */
jbeason3 0:e126ae11d20b 126 BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */
jbeason3 0:e126ae11d20b 127 #endif
jbeason3 0:e126ae11d20b 128 #if _USE_FASTSEEK
jbeason3 0:e126ae11d20b 129 DWORD* cltbl; /* Pointer to the cluster link map table (Nulled on file open) */
jbeason3 0:e126ae11d20b 130 #endif
jbeason3 0:e126ae11d20b 131 #if _FS_LOCK
jbeason3 0:e126ae11d20b 132 UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */
jbeason3 0:e126ae11d20b 133 #endif
jbeason3 0:e126ae11d20b 134 #if !_FS_TINY
jbeason3 0:e126ae11d20b 135 BYTE buf[_MAX_SS]; /* File private data read/write window */
jbeason3 0:e126ae11d20b 136 #endif
jbeason3 0:e126ae11d20b 137 } FIL;
jbeason3 0:e126ae11d20b 138
jbeason3 0:e126ae11d20b 139
jbeason3 0:e126ae11d20b 140
jbeason3 0:e126ae11d20b 141 /* Directory object structure (FATFS_DIR) */
jbeason3 0:e126ae11d20b 142
jbeason3 0:e126ae11d20b 143 typedef struct {
jbeason3 0:e126ae11d20b 144 FATFS* fs; /* Pointer to the owner file system object (**do not change order**) */
jbeason3 0:e126ae11d20b 145 WORD id; /* Owner file system mount ID (**do not change order**) */
jbeason3 0:e126ae11d20b 146 WORD index; /* Current read/write index number */
jbeason3 0:e126ae11d20b 147 DWORD sclust; /* Table start cluster (0:Root dir) */
jbeason3 0:e126ae11d20b 148 DWORD clust; /* Current cluster */
jbeason3 0:e126ae11d20b 149 DWORD sect; /* Current sector */
jbeason3 0:e126ae11d20b 150 BYTE* dir; /* Pointer to the current SFN entry in the win[] */
jbeason3 0:e126ae11d20b 151 BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
jbeason3 0:e126ae11d20b 152 #if _FS_LOCK
jbeason3 0:e126ae11d20b 153 UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
jbeason3 0:e126ae11d20b 154 #endif
jbeason3 0:e126ae11d20b 155 #if _USE_LFN
jbeason3 0:e126ae11d20b 156 WCHAR* lfn; /* Pointer to the LFN working buffer */
jbeason3 0:e126ae11d20b 157 WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
jbeason3 0:e126ae11d20b 158 #endif
jbeason3 0:e126ae11d20b 159 #if _USE_FIND
jbeason3 0:e126ae11d20b 160 const TCHAR* pat; /* Pointer to the name matching pattern */
jbeason3 0:e126ae11d20b 161 #endif
jbeason3 0:e126ae11d20b 162 } FATFS_DIR;
jbeason3 0:e126ae11d20b 163
jbeason3 0:e126ae11d20b 164
jbeason3 0:e126ae11d20b 165
jbeason3 0:e126ae11d20b 166 /* File information structure (FILINFO) */
jbeason3 0:e126ae11d20b 167
jbeason3 0:e126ae11d20b 168 typedef struct {
jbeason3 0:e126ae11d20b 169 DWORD fsize; /* File size */
jbeason3 0:e126ae11d20b 170 WORD fdate; /* Last modified date */
jbeason3 0:e126ae11d20b 171 WORD ftime; /* Last modified time */
jbeason3 0:e126ae11d20b 172 BYTE fattrib; /* Attribute */
jbeason3 0:e126ae11d20b 173 TCHAR fname[13]; /* Short file name (8.3 format) */
jbeason3 0:e126ae11d20b 174 #if _USE_LFN
jbeason3 0:e126ae11d20b 175 TCHAR* lfname; /* Pointer to the LFN buffer */
jbeason3 0:e126ae11d20b 176 UINT lfsize; /* Size of LFN buffer in TCHAR */
jbeason3 0:e126ae11d20b 177 #endif
jbeason3 0:e126ae11d20b 178 } FILINFO;
jbeason3 0:e126ae11d20b 179
jbeason3 0:e126ae11d20b 180
jbeason3 0:e126ae11d20b 181
jbeason3 0:e126ae11d20b 182 /* File function return code (FRESULT) */
jbeason3 0:e126ae11d20b 183
jbeason3 0:e126ae11d20b 184 typedef enum {
jbeason3 0:e126ae11d20b 185 FR_OK = 0, /* (0) Succeeded */
jbeason3 0:e126ae11d20b 186 FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
jbeason3 0:e126ae11d20b 187 FR_INT_ERR, /* (2) Assertion failed */
jbeason3 0:e126ae11d20b 188 FR_NOT_READY, /* (3) The physical drive cannot work */
jbeason3 0:e126ae11d20b 189 FR_NO_FILE, /* (4) Could not find the file */
jbeason3 0:e126ae11d20b 190 FR_NO_PATH, /* (5) Could not find the path */
jbeason3 0:e126ae11d20b 191 FR_INVALID_NAME, /* (6) The path name format is invalid */
jbeason3 0:e126ae11d20b 192 FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
jbeason3 0:e126ae11d20b 193 FR_EXIST, /* (8) Access denied due to prohibited access */
jbeason3 0:e126ae11d20b 194 FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
jbeason3 0:e126ae11d20b 195 FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
jbeason3 0:e126ae11d20b 196 FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
jbeason3 0:e126ae11d20b 197 FR_NOT_ENABLED, /* (12) The volume has no work area */
jbeason3 0:e126ae11d20b 198 FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
jbeason3 0:e126ae11d20b 199 FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
jbeason3 0:e126ae11d20b 200 FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
jbeason3 0:e126ae11d20b 201 FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
jbeason3 0:e126ae11d20b 202 FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
jbeason3 0:e126ae11d20b 203 FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_LOCK */
jbeason3 0:e126ae11d20b 204 FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
jbeason3 0:e126ae11d20b 205 } FRESULT;
jbeason3 0:e126ae11d20b 206
jbeason3 0:e126ae11d20b 207
jbeason3 0:e126ae11d20b 208
jbeason3 0:e126ae11d20b 209 /*--------------------------------------------------------------*/
jbeason3 0:e126ae11d20b 210 /* FatFs module application interface */
jbeason3 0:e126ae11d20b 211
jbeason3 0:e126ae11d20b 212 FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */
jbeason3 0:e126ae11d20b 213 FRESULT f_close (FIL* fp); /* Close an open file object */
jbeason3 0:e126ae11d20b 214 FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from a file */
jbeason3 0:e126ae11d20b 215 FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to a file */
jbeason3 0:e126ae11d20b 216 FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */
jbeason3 0:e126ae11d20b 217 FRESULT f_lseek (FIL* fp, DWORD ofs); /* Move file pointer of a file object */
jbeason3 0:e126ae11d20b 218 FRESULT f_truncate (FIL* fp); /* Truncate file */
jbeason3 0:e126ae11d20b 219 FRESULT f_sync (FIL* fp); /* Flush cached data of a writing file */
jbeason3 0:e126ae11d20b 220 FRESULT f_opendir (FATFS_DIR* dp, const TCHAR* path); /* Open a directory */
jbeason3 0:e126ae11d20b 221 FRESULT f_closedir (FATFS_DIR* dp); /* Close an open directory */
jbeason3 0:e126ae11d20b 222 FRESULT f_readdir (FATFS_DIR* dp, FILINFO* fno); /* Read a directory item */
jbeason3 0:e126ae11d20b 223 FRESULT f_findfirst (FATFS_DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */
jbeason3 0:e126ae11d20b 224 FRESULT f_findnext (FATFS_DIR* dp, FILINFO* fno); /* Find next file */
jbeason3 0:e126ae11d20b 225 FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */
jbeason3 0:e126ae11d20b 226 FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */
jbeason3 0:e126ae11d20b 227 FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */
jbeason3 0:e126ae11d20b 228 FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */
jbeason3 0:e126ae11d20b 229 FRESULT f_chmod (const TCHAR* path, BYTE attr, BYTE mask); /* Change attribute of the file/dir */
jbeason3 0:e126ae11d20b 230 FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change times-tamp of the file/dir */
jbeason3 0:e126ae11d20b 231 FRESULT f_chdir (const TCHAR* path); /* Change current directory */
jbeason3 0:e126ae11d20b 232 FRESULT f_chdrive (const TCHAR* path); /* Change current drive */
jbeason3 0:e126ae11d20b 233 FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */
jbeason3 0:e126ae11d20b 234 FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */
jbeason3 0:e126ae11d20b 235 FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */
jbeason3 0:e126ae11d20b 236 FRESULT f_setlabel (const TCHAR* label); /* Set volume label */
jbeason3 0:e126ae11d20b 237 FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */
jbeason3 0:e126ae11d20b 238 FRESULT f_mkfs (const TCHAR* path, BYTE sfd, UINT au); /* Create a file system on the volume */
jbeason3 0:e126ae11d20b 239 FRESULT f_fdisk (BYTE pdrv, const DWORD szt[], void* work); /* Divide a physical drive into some partitions */
jbeason3 0:e126ae11d20b 240 int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */
jbeason3 0:e126ae11d20b 241 int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */
jbeason3 0:e126ae11d20b 242 int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */
jbeason3 0:e126ae11d20b 243 TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
jbeason3 0:e126ae11d20b 244
jbeason3 0:e126ae11d20b 245 #define f_eof(fp) ((int)((fp)->fptr == (fp)->fsize))
jbeason3 0:e126ae11d20b 246 #define f_error(fp) ((fp)->err)
jbeason3 0:e126ae11d20b 247 #define f_tell(fp) ((fp)->fptr)
jbeason3 0:e126ae11d20b 248 #define f_size(fp) ((fp)->fsize)
jbeason3 0:e126ae11d20b 249 #define f_rewind(fp) f_lseek((fp), 0)
jbeason3 0:e126ae11d20b 250 #define f_rewinddir(dp) f_readdir((dp), 0)
jbeason3 0:e126ae11d20b 251
jbeason3 0:e126ae11d20b 252 #ifndef EOF
jbeason3 0:e126ae11d20b 253 #define EOF (-1)
jbeason3 0:e126ae11d20b 254 #endif
jbeason3 0:e126ae11d20b 255
jbeason3 0:e126ae11d20b 256
jbeason3 0:e126ae11d20b 257
jbeason3 0:e126ae11d20b 258
jbeason3 0:e126ae11d20b 259 /*--------------------------------------------------------------*/
jbeason3 0:e126ae11d20b 260 /* Additional user defined functions */
jbeason3 0:e126ae11d20b 261
jbeason3 0:e126ae11d20b 262 /* RTC function */
jbeason3 0:e126ae11d20b 263 #if !_FS_READONLY && !_FS_NORTC
jbeason3 0:e126ae11d20b 264 DWORD get_fattime (void);
jbeason3 0:e126ae11d20b 265 #endif
jbeason3 0:e126ae11d20b 266
jbeason3 0:e126ae11d20b 267 /* Unicode support functions */
jbeason3 0:e126ae11d20b 268 #if _USE_LFN /* Unicode - OEM code conversion */
jbeason3 0:e126ae11d20b 269 WCHAR ff_convert (WCHAR chr, UINT dir); /* OEM-Unicode bidirectional conversion */
jbeason3 0:e126ae11d20b 270 WCHAR ff_wtoupper (WCHAR chr); /* Unicode upper-case conversion */
jbeason3 0:e126ae11d20b 271 #if _USE_LFN == 3 /* Memory functions */
jbeason3 0:e126ae11d20b 272 void* ff_memalloc (UINT msize); /* Allocate memory block */
jbeason3 0:e126ae11d20b 273 void ff_memfree (void* mblock); /* Free memory block */
jbeason3 0:e126ae11d20b 274 #endif
jbeason3 0:e126ae11d20b 275 #endif
jbeason3 0:e126ae11d20b 276
jbeason3 0:e126ae11d20b 277 /* Sync functions */
jbeason3 0:e126ae11d20b 278 #if _FS_REENTRANT
jbeason3 0:e126ae11d20b 279 int ff_cre_syncobj (BYTE vol, _SYNC_t* sobj); /* Create a sync object */
jbeason3 0:e126ae11d20b 280 int ff_req_grant (_SYNC_t sobj); /* Lock sync object */
jbeason3 0:e126ae11d20b 281 void ff_rel_grant (_SYNC_t sobj); /* Unlock sync object */
jbeason3 0:e126ae11d20b 282 int ff_del_syncobj (_SYNC_t sobj); /* Delete a sync object */
jbeason3 0:e126ae11d20b 283 #endif
jbeason3 0:e126ae11d20b 284
jbeason3 0:e126ae11d20b 285
jbeason3 0:e126ae11d20b 286
jbeason3 0:e126ae11d20b 287
jbeason3 0:e126ae11d20b 288 /*--------------------------------------------------------------*/
jbeason3 0:e126ae11d20b 289 /* Flags and offset address */
jbeason3 0:e126ae11d20b 290
jbeason3 0:e126ae11d20b 291
jbeason3 0:e126ae11d20b 292 /* File access control and file status flags (FIL.flag) */
jbeason3 0:e126ae11d20b 293
jbeason3 0:e126ae11d20b 294 #define FA_READ 0x01
jbeason3 0:e126ae11d20b 295 #define FA_OPEN_EXISTING 0x00
jbeason3 0:e126ae11d20b 296
jbeason3 0:e126ae11d20b 297 #if !_FS_READONLY
jbeason3 0:e126ae11d20b 298 #define FA_WRITE 0x02
jbeason3 0:e126ae11d20b 299 #define FA_CREATE_NEW 0x04
jbeason3 0:e126ae11d20b 300 #define FA_CREATE_ALWAYS 0x08
jbeason3 0:e126ae11d20b 301 #define FA_OPEN_ALWAYS 0x10
jbeason3 0:e126ae11d20b 302 #define FA__WRITTEN 0x20
jbeason3 0:e126ae11d20b 303 #define FA__DIRTY 0x40
jbeason3 0:e126ae11d20b 304 #endif
jbeason3 0:e126ae11d20b 305
jbeason3 0:e126ae11d20b 306
jbeason3 0:e126ae11d20b 307 /* FAT sub type (FATFS.fs_type) */
jbeason3 0:e126ae11d20b 308
jbeason3 0:e126ae11d20b 309 #define FS_FAT12 1
jbeason3 0:e126ae11d20b 310 #define FS_FAT16 2
jbeason3 0:e126ae11d20b 311 #define FS_FAT32 3
jbeason3 0:e126ae11d20b 312
jbeason3 0:e126ae11d20b 313
jbeason3 0:e126ae11d20b 314 /* File attribute bits for directory entry */
jbeason3 0:e126ae11d20b 315
jbeason3 0:e126ae11d20b 316 #define AM_RDO 0x01 /* Read only */
jbeason3 0:e126ae11d20b 317 #define AM_HID 0x02 /* Hidden */
jbeason3 0:e126ae11d20b 318 #define AM_SYS 0x04 /* System */
jbeason3 0:e126ae11d20b 319 #define AM_VOL 0x08 /* Volume label */
jbeason3 0:e126ae11d20b 320 #define AM_LFN 0x0F /* LFN entry */
jbeason3 0:e126ae11d20b 321 #define AM_DIR 0x10 /* Directory */
jbeason3 0:e126ae11d20b 322 #define AM_ARC 0x20 /* Archive */
jbeason3 0:e126ae11d20b 323 #define AM_MASK 0x3F /* Mask of defined bits */
jbeason3 0:e126ae11d20b 324
jbeason3 0:e126ae11d20b 325
jbeason3 0:e126ae11d20b 326 /* Fast seek feature */
jbeason3 0:e126ae11d20b 327 #define CREATE_LINKMAP 0xFFFFFFFF
jbeason3 0:e126ae11d20b 328
jbeason3 0:e126ae11d20b 329
jbeason3 0:e126ae11d20b 330
jbeason3 0:e126ae11d20b 331 /*--------------------------------*/
jbeason3 0:e126ae11d20b 332 /* Multi-byte word access macros */
jbeason3 0:e126ae11d20b 333
jbeason3 0:e126ae11d20b 334 #if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
jbeason3 0:e126ae11d20b 335 #define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
jbeason3 0:e126ae11d20b 336 #define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
jbeason3 0:e126ae11d20b 337 #define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
jbeason3 0:e126ae11d20b 338 #define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
jbeason3 0:e126ae11d20b 339 #else /* Use byte-by-byte access to the FAT structure */
jbeason3 0:e126ae11d20b 340 #define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
jbeason3 0:e126ae11d20b 341 #define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
jbeason3 0:e126ae11d20b 342 #define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
jbeason3 0:e126ae11d20b 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)
jbeason3 0:e126ae11d20b 344 #endif
jbeason3 0:e126ae11d20b 345
jbeason3 0:e126ae11d20b 346 #ifdef __cplusplus
jbeason3 0:e126ae11d20b 347 }
jbeason3 0:e126ae11d20b 348 #endif
jbeason3 0:e126ae11d20b 349
jbeason3 0:e126ae11d20b 350 #endif /* _FATFS */