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Dependencies:   mbed FATFileSystem

Fork of OnlyYestaerday by Junichi Katsu

SDFileSystem/FATFileSystem/ChaN/ff.cpp@0:5975af170e43, 2014-04-02 (annotated)

Committer:
jksoft
Date:
Wed Apr 02 01:43:55 2014 +0000
Revision:
0:5975af170e43
1st Prototype

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jksoft 0:5975af170e43 1 /*----------------------------------------------------------------------------/
jksoft 0:5975af170e43 2 / FatFs - FAT file system module R0.09a (C)ChaN, 2012
jksoft 0:5975af170e43 3 /-----------------------------------------------------------------------------/
jksoft 0:5975af170e43 4 / FatFs module is a generic FAT file system module for small embedded systems.
jksoft 0:5975af170e43 5 / This is a free software that opened for education, research and commercial
jksoft 0:5975af170e43 6 / developments under license policy of following terms.
jksoft 0:5975af170e43 7 /
jksoft 0:5975af170e43 8 / Copyright (C) 2012, ChaN, all right reserved.
jksoft 0:5975af170e43 9 /
jksoft 0:5975af170e43 10 / * The FatFs module is a free software and there is NO WARRANTY.
jksoft 0:5975af170e43 11 / * No restriction on use. You can use, modify and redistribute it for
jksoft 0:5975af170e43 12 / personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
jksoft 0:5975af170e43 13 / * Redistributions of source code must retain the above copyright notice.
jksoft 0:5975af170e43 14 /
jksoft 0:5975af170e43 15 /-----------------------------------------------------------------------------/
jksoft 0:5975af170e43 16 / Feb 26,'06 R0.00 Prototype.
jksoft 0:5975af170e43 17 /
jksoft 0:5975af170e43 18 / Apr 29,'06 R0.01 First stable version.
jksoft 0:5975af170e43 19 /
jksoft 0:5975af170e43 20 / Jun 01,'06 R0.02 Added FAT12 support.
jksoft 0:5975af170e43 21 / Removed unbuffered mode.
jksoft 0:5975af170e43 22 / Fixed a problem on small (<32M) partition.
jksoft 0:5975af170e43 23 / Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
jksoft 0:5975af170e43 24 /
jksoft 0:5975af170e43 25 / Sep 22,'06 R0.03 Added f_rename().
jksoft 0:5975af170e43 26 / Changed option _FS_MINIMUM to _FS_MINIMIZE.
jksoft 0:5975af170e43 27 / Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
jksoft 0:5975af170e43 28 / Fixed f_mkdir() creates incorrect directory on FAT32.
jksoft 0:5975af170e43 29 /
jksoft 0:5975af170e43 30 / Feb 04,'07 R0.04 Supported multiple drive system.
jksoft 0:5975af170e43 31 / Changed some interfaces for multiple drive system.
jksoft 0:5975af170e43 32 / Changed f_mountdrv() to f_mount().
jksoft 0:5975af170e43 33 / Added f_mkfs().
jksoft 0:5975af170e43 34 / Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
jksoft 0:5975af170e43 35 / Added a capability of extending file size to f_lseek().
jksoft 0:5975af170e43 36 / Added minimization level 3.
jksoft 0:5975af170e43 37 / Fixed an endian sensitive code in f_mkfs().
jksoft 0:5975af170e43 38 / May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
jksoft 0:5975af170e43 39 / Added FSInfo support.
jksoft 0:5975af170e43 40 / Fixed DBCS name can result FR_INVALID_NAME.
jksoft 0:5975af170e43 41 / Fixed short seek (<= csize) collapses the file object.
jksoft 0:5975af170e43 42 /
jksoft 0:5975af170e43 43 / Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
jksoft 0:5975af170e43 44 / Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
jksoft 0:5975af170e43 45 / Fixed f_mkdir() on FAT32 creates incorrect directory.
jksoft 0:5975af170e43 46 / Feb 03,'08 R0.05a Added f_truncate() and f_utime().
jksoft 0:5975af170e43 47 / Fixed off by one error at FAT sub-type determination.
jksoft 0:5975af170e43 48 / Fixed btr in f_read() can be mistruncated.
jksoft 0:5975af170e43 49 / Fixed cached sector is not flushed when create and close without write.
jksoft 0:5975af170e43 50 /
jksoft 0:5975af170e43 51 / Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
jksoft 0:5975af170e43 52 / Improved performance of f_lseek() on moving to the same or following cluster.
jksoft 0:5975af170e43 53 /
jksoft 0:5975af170e43 54 / Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
jksoft 0:5975af170e43 55 / Added long file name feature.
jksoft 0:5975af170e43 56 / Added multiple code page feature.
jksoft 0:5975af170e43 57 / Added re-entrancy for multitask operation.
jksoft 0:5975af170e43 58 / Added auto cluster size selection to f_mkfs().
jksoft 0:5975af170e43 59 / Added rewind option to f_readdir().
jksoft 0:5975af170e43 60 / Changed result code of critical errors.
jksoft 0:5975af170e43 61 / Renamed string functions to avoid name collision.
jksoft 0:5975af170e43 62 / Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
jksoft 0:5975af170e43 63 / Added multiple sector size feature.
jksoft 0:5975af170e43 64 / Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
jksoft 0:5975af170e43 65 / Fixed wrong cache control in f_lseek().
jksoft 0:5975af170e43 66 / Added relative path feature.
jksoft 0:5975af170e43 67 / Added f_chdir() and f_chdrive().
jksoft 0:5975af170e43 68 / Added proper case conversion to extended char.
jksoft 0:5975af170e43 69 / Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
jksoft 0:5975af170e43 70 / Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
jksoft 0:5975af170e43 71 / Fixed name matching error on the 13 char boundary.
jksoft 0:5975af170e43 72 / Added a configuration option, _LFN_UNICODE.
jksoft 0:5975af170e43 73 / Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
jksoft 0:5975af170e43 74 /
jksoft 0:5975af170e43 75 / May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
jksoft 0:5975af170e43 76 / Added file lock feature. (_FS_SHARE)
jksoft 0:5975af170e43 77 / Added fast seek feature. (_USE_FASTSEEK)
jksoft 0:5975af170e43 78 / Changed some types on the API, XCHAR->TCHAR.
jksoft 0:5975af170e43 79 / Changed fname member in the FILINFO structure on Unicode cfg.
jksoft 0:5975af170e43 80 / String functions support UTF-8 encoding files on Unicode cfg.
jksoft 0:5975af170e43 81 / Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
jksoft 0:5975af170e43 82 / Added sector erase feature. (_USE_ERASE)
jksoft 0:5975af170e43 83 / Moved file lock semaphore table from fs object to the bss.
jksoft 0:5975af170e43 84 / Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
jksoft 0:5975af170e43 85 / Fixed f_mkfs() creates wrong FAT32 volume.
jksoft 0:5975af170e43 86 / Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
jksoft 0:5975af170e43 87 / f_lseek() reports required table size on creating CLMP.
jksoft 0:5975af170e43 88 / Extended format syntax of f_printf function.
jksoft 0:5975af170e43 89 / Ignores duplicated directory separators in given path name.
jksoft 0:5975af170e43 90 /
jksoft 0:5975af170e43 91 / Sep 06,'11 R0.09 f_mkfs() supports multiple partition to finish the multiple partition feature.
jksoft 0:5975af170e43 92 / Added f_fdisk(). (_MULTI_PARTITION = 2)
jksoft 0:5975af170e43 93 / Aug 27,'12 R0.09a Fixed assertion failure due to OS/2 EA on FAT12/16 volume.
jksoft 0:5975af170e43 94 / Changed f_open() and f_opendir reject null object pointer to avoid crash.
jksoft 0:5975af170e43 95 / Changed option name _FS_SHARE to _FS_LOCK.
jksoft 0:5975af170e43 96 /---------------------------------------------------------------------------*/
jksoft 0:5975af170e43 97
jksoft 0:5975af170e43 98 #include "ff.h" /* FatFs configurations and declarations */
jksoft 0:5975af170e43 99 #include "diskio.h" /* Declarations of low level disk I/O functions */
jksoft 0:5975af170e43 100
jksoft 0:5975af170e43 101
jksoft 0:5975af170e43 102 /*--------------------------------------------------------------------------
jksoft 0:5975af170e43 103
jksoft 0:5975af170e43 104 Module Private Definitions
jksoft 0:5975af170e43 105
jksoft 0:5975af170e43 106 ---------------------------------------------------------------------------*/
jksoft 0:5975af170e43 107
jksoft 0:5975af170e43 108 #if _FATFS != 4004 /* Revision ID */
jksoft 0:5975af170e43 109 #error Wrong include file (ff.h).
jksoft 0:5975af170e43 110 #endif
jksoft 0:5975af170e43 111
jksoft 0:5975af170e43 112
jksoft 0:5975af170e43 113 /* Definitions on sector size */
jksoft 0:5975af170e43 114 #if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
jksoft 0:5975af170e43 115 #error Wrong sector size.
jksoft 0:5975af170e43 116 #endif
jksoft 0:5975af170e43 117 #if _MAX_SS != 512
jksoft 0:5975af170e43 118 #define SS(fs) ((fs)->ssize) /* Variable sector size */
jksoft 0:5975af170e43 119 #else
jksoft 0:5975af170e43 120 #define SS(fs) 512U /* Fixed sector size */
jksoft 0:5975af170e43 121 #endif
jksoft 0:5975af170e43 122
jksoft 0:5975af170e43 123
jksoft 0:5975af170e43 124 /* Reentrancy related */
jksoft 0:5975af170e43 125 #if _FS_REENTRANT
jksoft 0:5975af170e43 126 #if _USE_LFN == 1
jksoft 0:5975af170e43 127 #error Static LFN work area must not be used in re-entrant configuration.
jksoft 0:5975af170e43 128 #endif
jksoft 0:5975af170e43 129 #define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
jksoft 0:5975af170e43 130 #define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
jksoft 0:5975af170e43 131 #else
jksoft 0:5975af170e43 132 #define ENTER_FF(fs)
jksoft 0:5975af170e43 133 #define LEAVE_FF(fs, res) return res
jksoft 0:5975af170e43 134 #endif
jksoft 0:5975af170e43 135
jksoft 0:5975af170e43 136 #define ABORT(fs, res) { fp->flag |= FA__ERROR; LEAVE_FF(fs, res); }
jksoft 0:5975af170e43 137
jksoft 0:5975af170e43 138
jksoft 0:5975af170e43 139 /* File access control feature */
jksoft 0:5975af170e43 140 #if _FS_LOCK
jksoft 0:5975af170e43 141 #if _FS_READONLY
jksoft 0:5975af170e43 142 #error _FS_LOCK must be 0 on read-only cfg.
jksoft 0:5975af170e43 143 #endif
jksoft 0:5975af170e43 144 typedef struct {
jksoft 0:5975af170e43 145 FATFS *fs; /* File ID 1, volume (NULL:blank entry) */
jksoft 0:5975af170e43 146 DWORD clu; /* File ID 2, directory */
jksoft 0:5975af170e43 147 WORD idx; /* File ID 3, directory index */
jksoft 0:5975af170e43 148 WORD ctr; /* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:write mode */
jksoft 0:5975af170e43 149 } FILESEM;
jksoft 0:5975af170e43 150 #endif
jksoft 0:5975af170e43 151
jksoft 0:5975af170e43 152
jksoft 0:5975af170e43 153
jksoft 0:5975af170e43 154 /* DBCS code ranges and SBCS extend char conversion table */
jksoft 0:5975af170e43 155
jksoft 0:5975af170e43 156 #if _CODE_PAGE == 932 /* Japanese Shift-JIS */
jksoft 0:5975af170e43 157 #define _DF1S 0x81 /* DBC 1st byte range 1 start */
jksoft 0:5975af170e43 158 #define _DF1E 0x9F /* DBC 1st byte range 1 end */
jksoft 0:5975af170e43 159 #define _DF2S 0xE0 /* DBC 1st byte range 2 start */
jksoft 0:5975af170e43 160 #define _DF2E 0xFC /* DBC 1st byte range 2 end */
jksoft 0:5975af170e43 161 #define _DS1S 0x40 /* DBC 2nd byte range 1 start */
jksoft 0:5975af170e43 162 #define _DS1E 0x7E /* DBC 2nd byte range 1 end */
jksoft 0:5975af170e43 163 #define _DS2S 0x80 /* DBC 2nd byte range 2 start */
jksoft 0:5975af170e43 164 #define _DS2E 0xFC /* DBC 2nd byte range 2 end */
jksoft 0:5975af170e43 165
jksoft 0:5975af170e43 166 #elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
jksoft 0:5975af170e43 167 #define _DF1S 0x81
jksoft 0:5975af170e43 168 #define _DF1E 0xFE
jksoft 0:5975af170e43 169 #define _DS1S 0x40
jksoft 0:5975af170e43 170 #define _DS1E 0x7E
jksoft 0:5975af170e43 171 #define _DS2S 0x80
jksoft 0:5975af170e43 172 #define _DS2E 0xFE
jksoft 0:5975af170e43 173
jksoft 0:5975af170e43 174 #elif _CODE_PAGE == 949 /* Korean */
jksoft 0:5975af170e43 175 #define _DF1S 0x81
jksoft 0:5975af170e43 176 #define _DF1E 0xFE
jksoft 0:5975af170e43 177 #define _DS1S 0x41
jksoft 0:5975af170e43 178 #define _DS1E 0x5A
jksoft 0:5975af170e43 179 #define _DS2S 0x61
jksoft 0:5975af170e43 180 #define _DS2E 0x7A
jksoft 0:5975af170e43 181 #define _DS3S 0x81
jksoft 0:5975af170e43 182 #define _DS3E 0xFE
jksoft 0:5975af170e43 183
jksoft 0:5975af170e43 184 #elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
jksoft 0:5975af170e43 185 #define _DF1S 0x81
jksoft 0:5975af170e43 186 #define _DF1E 0xFE
jksoft 0:5975af170e43 187 #define _DS1S 0x40
jksoft 0:5975af170e43 188 #define _DS1E 0x7E
jksoft 0:5975af170e43 189 #define _DS2S 0xA1
jksoft 0:5975af170e43 190 #define _DS2E 0xFE
jksoft 0:5975af170e43 191
jksoft 0:5975af170e43 192 #elif _CODE_PAGE == 437 /* U.S. (OEM) */
jksoft 0:5975af170e43 193 #define _DF1S 0
jksoft 0:5975af170e43 194 #define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F,0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 195 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 196 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 197 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
jksoft 0:5975af170e43 198
jksoft 0:5975af170e43 199 #elif _CODE_PAGE == 720 /* Arabic (OEM) */
jksoft 0:5975af170e43 200 #define _DF1S 0
jksoft 0:5975af170e43 201 #define _EXCVT {0x80,0x81,0x45,0x41,0x84,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x49,0x49,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 202 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 203 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 204 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
jksoft 0:5975af170e43 205
jksoft 0:5975af170e43 206 #elif _CODE_PAGE == 737 /* Greek (OEM) */
jksoft 0:5975af170e43 207 #define _DF1S 0
jksoft 0:5975af170e43 208 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
jksoft 0:5975af170e43 209 0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 210 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 211 0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xE7,0xE8,0xF1,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
jksoft 0:5975af170e43 212
jksoft 0:5975af170e43 213 #elif _CODE_PAGE == 775 /* Baltic (OEM) */
jksoft 0:5975af170e43 214 #define _DF1S 0
jksoft 0:5975af170e43 215 #define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 216 0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 217 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 218 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
jksoft 0:5975af170e43 219
jksoft 0:5975af170e43 220 #elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
jksoft 0:5975af170e43 221 #define _DF1S 0
jksoft 0:5975af170e43 222 #define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 223 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 224 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 225 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
jksoft 0:5975af170e43 226
jksoft 0:5975af170e43 227 #elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
jksoft 0:5975af170e43 228 #define _DF1S 0
jksoft 0:5975af170e43 229 #define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F,0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 230 0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
jksoft 0:5975af170e43 231 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 232 0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
jksoft 0:5975af170e43 233
jksoft 0:5975af170e43 234 #elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
jksoft 0:5975af170e43 235 #define _DF1S 0
jksoft 0:5975af170e43 236 #define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F,0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
jksoft 0:5975af170e43 237 0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
jksoft 0:5975af170e43 238 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
jksoft 0:5975af170e43 239 0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
jksoft 0:5975af170e43 240
jksoft 0:5975af170e43 241 #elif _CODE_PAGE == 857 /* Turkish (OEM) */
jksoft 0:5975af170e43 242 #define _DF1S 0
jksoft 0:5975af170e43 243 #define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x98,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
jksoft 0:5975af170e43 244 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 245 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 246 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0x59,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
jksoft 0:5975af170e43 247
jksoft 0:5975af170e43 248 #elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
jksoft 0:5975af170e43 249 #define _DF1S 0
jksoft 0:5975af170e43 250 #define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 251 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 252 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 253 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
jksoft 0:5975af170e43 254
jksoft 0:5975af170e43 255 #elif _CODE_PAGE == 862 /* Hebrew (OEM) */
jksoft 0:5975af170e43 256 #define _DF1S 0
jksoft 0:5975af170e43 257 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 258 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 259 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 260 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
jksoft 0:5975af170e43 261
jksoft 0:5975af170e43 262 #elif _CODE_PAGE == 866 /* Russian (OEM) */
jksoft 0:5975af170e43 263 #define _DF1S 0
jksoft 0:5975af170e43 264 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 265 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 266 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 267 0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
jksoft 0:5975af170e43 268
jksoft 0:5975af170e43 269 #elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
jksoft 0:5975af170e43 270 #define _DF1S 0
jksoft 0:5975af170e43 271 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 272 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 273 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 274 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
jksoft 0:5975af170e43 275
jksoft 0:5975af170e43 276 #elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
jksoft 0:5975af170e43 277 #define _DF1S 0
jksoft 0:5975af170e43 278 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
jksoft 0:5975af170e43 279 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xA3,0xB4,0xB5,0xB6,0xB7,0xB8,0xA5,0xAA,0xBB,0xBC,0xBD,0xBC,0xAF, \
jksoft 0:5975af170e43 280 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 281 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
jksoft 0:5975af170e43 282
jksoft 0:5975af170e43 283 #elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
jksoft 0:5975af170e43 284 #define _DF1S 0
jksoft 0:5975af170e43 285 #define _EXCVT {0x80,0x81,0x82,0x82,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x80,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
jksoft 0:5975af170e43 286 0xA0,0xA2,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB2,0xA5,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xA3,0xBD,0xBD,0xAF, \
jksoft 0:5975af170e43 287 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 288 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF}
jksoft 0:5975af170e43 289
jksoft 0:5975af170e43 290 #elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
jksoft 0:5975af170e43 291 #define _DF1S 0
jksoft 0:5975af170e43 292 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0xAd,0x9B,0x8C,0x9D,0xAE,0x9F, \
jksoft 0:5975af170e43 293 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 294 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 295 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
jksoft 0:5975af170e43 296
jksoft 0:5975af170e43 297 #elif _CODE_PAGE == 1253 /* Greek (Windows) */
jksoft 0:5975af170e43 298 #define _DF1S 0
jksoft 0:5975af170e43 299 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 300 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 301 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xA2,0xB8,0xB9,0xBA, \
jksoft 0:5975af170e43 302 0xE0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xFB,0xBC,0xFD,0xBF,0xFF}
jksoft 0:5975af170e43 303
jksoft 0:5975af170e43 304 #elif _CODE_PAGE == 1254 /* Turkish (Windows) */
jksoft 0:5975af170e43 305 #define _DF1S 0
jksoft 0:5975af170e43 306 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 307 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 308 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 309 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
jksoft 0:5975af170e43 310
jksoft 0:5975af170e43 311 #elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
jksoft 0:5975af170e43 312 #define _DF1S 0
jksoft 0:5975af170e43 313 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 314 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 315 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 316 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
jksoft 0:5975af170e43 317
jksoft 0:5975af170e43 318 #elif _CODE_PAGE == 1256 /* Arabic (Windows) */
jksoft 0:5975af170e43 319 #define _DF1S 0
jksoft 0:5975af170e43 320 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x8C,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 321 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 322 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 323 0x41,0xE1,0x41,0xE3,0xE4,0xE5,0xE6,0x43,0x45,0x45,0x45,0x45,0xEC,0xED,0x49,0x49,0xF0,0xF1,0xF2,0xF3,0x4F,0xF5,0xF6,0xF7,0xF8,0x55,0xFA,0x55,0x55,0xFD,0xFE,0xFF}
jksoft 0:5975af170e43 324
jksoft 0:5975af170e43 325 #elif _CODE_PAGE == 1257 /* Baltic (Windows) */
jksoft 0:5975af170e43 326 #define _DF1S 0
jksoft 0:5975af170e43 327 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 328 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xBC,0xBD,0xBE,0xAF, \
jksoft 0:5975af170e43 329 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 330 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
jksoft 0:5975af170e43 331
jksoft 0:5975af170e43 332 #elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
jksoft 0:5975af170e43 333 #define _DF1S 0
jksoft 0:5975af170e43 334 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0xAC,0x9D,0x9E,0x9F, \
jksoft 0:5975af170e43 335 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
jksoft 0:5975af170e43 336 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
jksoft 0:5975af170e43 337 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xEC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xFE,0x9F}
jksoft 0:5975af170e43 338
jksoft 0:5975af170e43 339 #elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
jksoft 0:5975af170e43 340 #if _USE_LFN
jksoft 0:5975af170e43 341 #error Cannot use LFN feature without valid code page.
jksoft 0:5975af170e43 342 #endif
jksoft 0:5975af170e43 343 #define _DF1S 0
jksoft 0:5975af170e43 344
jksoft 0:5975af170e43 345 #else
jksoft 0:5975af170e43 346 #error Unknown code page
jksoft 0:5975af170e43 347
jksoft 0:5975af170e43 348 #endif
jksoft 0:5975af170e43 349
jksoft 0:5975af170e43 350
jksoft 0:5975af170e43 351 /* Character code support macros */
jksoft 0:5975af170e43 352 #define IsUpper(c) (((c)>='A')&&((c)<='Z'))
jksoft 0:5975af170e43 353 #define IsLower(c) (((c)>='a')&&((c)<='z'))
jksoft 0:5975af170e43 354 #define IsDigit(c) (((c)>='0')&&((c)<='9'))
jksoft 0:5975af170e43 355
jksoft 0:5975af170e43 356 #if _DF1S /* Code page is DBCS */
jksoft 0:5975af170e43 357
jksoft 0:5975af170e43 358 #ifdef _DF2S /* Two 1st byte areas */
jksoft 0:5975af170e43 359 #define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) || ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
jksoft 0:5975af170e43 360 #else /* One 1st byte area */
jksoft 0:5975af170e43 361 #define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
jksoft 0:5975af170e43 362 #endif
jksoft 0:5975af170e43 363
jksoft 0:5975af170e43 364 #ifdef _DS3S /* Three 2nd byte areas */
jksoft 0:5975af170e43 365 #define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) || ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
jksoft 0:5975af170e43 366 #else /* Two 2nd byte areas */
jksoft 0:5975af170e43 367 #define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
jksoft 0:5975af170e43 368 #endif
jksoft 0:5975af170e43 369
jksoft 0:5975af170e43 370 #else /* Code page is SBCS */
jksoft 0:5975af170e43 371
jksoft 0:5975af170e43 372 #define IsDBCS1(c) 0
jksoft 0:5975af170e43 373 #define IsDBCS2(c) 0
jksoft 0:5975af170e43 374
jksoft 0:5975af170e43 375 #endif /* _DF1S */
jksoft 0:5975af170e43 376
jksoft 0:5975af170e43 377
jksoft 0:5975af170e43 378 /* Name status flags */
jksoft 0:5975af170e43 379 #define NS 11 /* Index of name status byte in fn[] */
jksoft 0:5975af170e43 380 #define NS_LOSS 0x01 /* Out of 8.3 format */
jksoft 0:5975af170e43 381 #define NS_LFN 0x02 /* Force to create LFN entry */
jksoft 0:5975af170e43 382 #define NS_LAST 0x04 /* Last segment */
jksoft 0:5975af170e43 383 #define NS_BODY 0x08 /* Lower case flag (body) */
jksoft 0:5975af170e43 384 #define NS_EXT 0x10 /* Lower case flag (ext) */
jksoft 0:5975af170e43 385 #define NS_DOT 0x20 /* Dot entry */
jksoft 0:5975af170e43 386
jksoft 0:5975af170e43 387
jksoft 0:5975af170e43 388 /* FAT sub-type boundaries */
jksoft 0:5975af170e43 389 /* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */
jksoft 0:5975af170e43 390 #define MIN_FAT16 4086 /* Minimum number of clusters for FAT16 */
jksoft 0:5975af170e43 391 #define MIN_FAT32 65526 /* Minimum number of clusters for FAT32 */
jksoft 0:5975af170e43 392
jksoft 0:5975af170e43 393
jksoft 0:5975af170e43 394 /* FatFs refers the members in the FAT structures as byte array instead of
jksoft 0:5975af170e43 395 / structure member because the structure is not binary compatible between
jksoft 0:5975af170e43 396 / different platforms */
jksoft 0:5975af170e43 397
jksoft 0:5975af170e43 398 #define BS_jmpBoot 0 /* Jump instruction (3) */
jksoft 0:5975af170e43 399 #define BS_OEMName 3 /* OEM name (8) */
jksoft 0:5975af170e43 400 #define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
jksoft 0:5975af170e43 401 #define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
jksoft 0:5975af170e43 402 #define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
jksoft 0:5975af170e43 403 #define BPB_NumFATs 16 /* Number of FAT copies (1) */
jksoft 0:5975af170e43 404 #define BPB_RootEntCnt 17 /* Number of root dir entries for FAT12/16 (2) */
jksoft 0:5975af170e43 405 #define BPB_TotSec16 19 /* Volume size [sector] (2) */
jksoft 0:5975af170e43 406 #define BPB_Media 21 /* Media descriptor (1) */
jksoft 0:5975af170e43 407 #define BPB_FATSz16 22 /* FAT size [sector] (2) */
jksoft 0:5975af170e43 408 #define BPB_SecPerTrk 24 /* Track size [sector] (2) */
jksoft 0:5975af170e43 409 #define BPB_NumHeads 26 /* Number of heads (2) */
jksoft 0:5975af170e43 410 #define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
jksoft 0:5975af170e43 411 #define BPB_TotSec32 32 /* Volume size [sector] (4) */
jksoft 0:5975af170e43 412 #define BS_DrvNum 36 /* Physical drive number (2) */
jksoft 0:5975af170e43 413 #define BS_BootSig 38 /* Extended boot signature (1) */
jksoft 0:5975af170e43 414 #define BS_VolID 39 /* Volume serial number (4) */
jksoft 0:5975af170e43 415 #define BS_VolLab 43 /* Volume label (8) */
jksoft 0:5975af170e43 416 #define BS_FilSysType 54 /* File system type (1) */
jksoft 0:5975af170e43 417 #define BPB_FATSz32 36 /* FAT size [sector] (4) */
jksoft 0:5975af170e43 418 #define BPB_ExtFlags 40 /* Extended flags (2) */
jksoft 0:5975af170e43 419 #define BPB_FSVer 42 /* File system version (2) */
jksoft 0:5975af170e43 420 #define BPB_RootClus 44 /* Root dir first cluster (4) */
jksoft 0:5975af170e43 421 #define BPB_FSInfo 48 /* Offset of FSInfo sector (2) */
jksoft 0:5975af170e43 422 #define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
jksoft 0:5975af170e43 423 #define BS_DrvNum32 64 /* Physical drive number (2) */
jksoft 0:5975af170e43 424 #define BS_BootSig32 66 /* Extended boot signature (1) */
jksoft 0:5975af170e43 425 #define BS_VolID32 67 /* Volume serial number (4) */
jksoft 0:5975af170e43 426 #define BS_VolLab32 71 /* Volume label (8) */
jksoft 0:5975af170e43 427 #define BS_FilSysType32 82 /* File system type (1) */
jksoft 0:5975af170e43 428 #define FSI_LeadSig 0 /* FSI: Leading signature (4) */
jksoft 0:5975af170e43 429 #define FSI_StrucSig 484 /* FSI: Structure signature (4) */
jksoft 0:5975af170e43 430 #define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
jksoft 0:5975af170e43 431 #define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
jksoft 0:5975af170e43 432 #define MBR_Table 446 /* MBR: Partition table offset (2) */
jksoft 0:5975af170e43 433 #define SZ_PTE 16 /* MBR: Size of a partition table entry */
jksoft 0:5975af170e43 434 #define BS_55AA 510 /* Boot sector signature (2) */
jksoft 0:5975af170e43 435
jksoft 0:5975af170e43 436 #define DIR_Name 0 /* Short file name (11) */
jksoft 0:5975af170e43 437 #define DIR_Attr 11 /* Attribute (1) */
jksoft 0:5975af170e43 438 #define DIR_NTres 12 /* NT flag (1) */
jksoft 0:5975af170e43 439 #define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
jksoft 0:5975af170e43 440 #define DIR_CrtTime 14 /* Created time (2) */
jksoft 0:5975af170e43 441 #define DIR_CrtDate 16 /* Created date (2) */
jksoft 0:5975af170e43 442 #define DIR_LstAccDate 18 /* Last accessed date (2) */
jksoft 0:5975af170e43 443 #define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
jksoft 0:5975af170e43 444 #define DIR_WrtTime 22 /* Modified time (2) */
jksoft 0:5975af170e43 445 #define DIR_WrtDate 24 /* Modified date (2) */
jksoft 0:5975af170e43 446 #define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
jksoft 0:5975af170e43 447 #define DIR_FileSize 28 /* File size (4) */
jksoft 0:5975af170e43 448 #define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
jksoft 0:5975af170e43 449 #define LDIR_Attr 11 /* LFN attribute (1) */
jksoft 0:5975af170e43 450 #define LDIR_Type 12 /* LFN type (1) */
jksoft 0:5975af170e43 451 #define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
jksoft 0:5975af170e43 452 #define LDIR_FstClusLO 26 /* Filled by zero (0) */
jksoft 0:5975af170e43 453 #define SZ_DIR 32 /* Size of a directory entry */
jksoft 0:5975af170e43 454 #define LLE 0x40 /* Last long entry flag in LDIR_Ord */
jksoft 0:5975af170e43 455 #define DDE 0xE5 /* Deleted directory entry mark in DIR_Name[0] */
jksoft 0:5975af170e43 456 #define NDDE 0x05 /* Replacement of the character collides with DDE */
jksoft 0:5975af170e43 457
jksoft 0:5975af170e43 458
jksoft 0:5975af170e43 459 /*------------------------------------------------------------*/
jksoft 0:5975af170e43 460 /* Module private work area */
jksoft 0:5975af170e43 461 /*------------------------------------------------------------*/
jksoft 0:5975af170e43 462 /* Note that uninitialized variables with static duration are
jksoft 0:5975af170e43 463 / zeroed/nulled at start-up. If not, the compiler or start-up
jksoft 0:5975af170e43 464 / routine is out of ANSI-C standard.
jksoft 0:5975af170e43 465 */
jksoft 0:5975af170e43 466
jksoft 0:5975af170e43 467 #if _VOLUMES
jksoft 0:5975af170e43 468 static
jksoft 0:5975af170e43 469 FATFS *FatFs[_VOLUMES]; /* Pointer to the file system objects (logical drives) */
jksoft 0:5975af170e43 470 #else
jksoft 0:5975af170e43 471 #error Number of volumes must not be 0.
jksoft 0:5975af170e43 472 #endif
jksoft 0:5975af170e43 473
jksoft 0:5975af170e43 474 static
jksoft 0:5975af170e43 475 WORD Fsid; /* File system mount ID */
jksoft 0:5975af170e43 476
jksoft 0:5975af170e43 477 #if _FS_RPATH
jksoft 0:5975af170e43 478 static
jksoft 0:5975af170e43 479 BYTE CurrVol; /* Current drive */
jksoft 0:5975af170e43 480 #endif
jksoft 0:5975af170e43 481
jksoft 0:5975af170e43 482 #if _FS_LOCK
jksoft 0:5975af170e43 483 static
jksoft 0:5975af170e43 484 FILESEM Files[_FS_LOCK]; /* File lock semaphores */
jksoft 0:5975af170e43 485 #endif
jksoft 0:5975af170e43 486
jksoft 0:5975af170e43 487 #if _USE_LFN == 0 /* No LFN feature */
jksoft 0:5975af170e43 488 #define DEF_NAMEBUF BYTE sfn[12]
jksoft 0:5975af170e43 489 #define INIT_BUF(dobj) (dobj).fn = sfn
jksoft 0:5975af170e43 490 #define FREE_BUF()
jksoft 0:5975af170e43 491
jksoft 0:5975af170e43 492 #elif _USE_LFN == 1 /* LFN feature with static working buffer */
jksoft 0:5975af170e43 493 static WCHAR LfnBuf[_MAX_LFN+1];
jksoft 0:5975af170e43 494 #define DEF_NAMEBUF BYTE sfn[12]
jksoft 0:5975af170e43 495 #define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
jksoft 0:5975af170e43 496 #define FREE_BUF()
jksoft 0:5975af170e43 497
jksoft 0:5975af170e43 498 #elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
jksoft 0:5975af170e43 499 #define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
jksoft 0:5975af170e43 500 #define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
jksoft 0:5975af170e43 501 #define FREE_BUF()
jksoft 0:5975af170e43 502
jksoft 0:5975af170e43 503 #elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
jksoft 0:5975af170e43 504 #define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
jksoft 0:5975af170e43 505 #define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
jksoft 0:5975af170e43 506 if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
jksoft 0:5975af170e43 507 (dobj).lfn = lfn; (dobj).fn = sfn; }
jksoft 0:5975af170e43 508 #define FREE_BUF() ff_memfree(lfn)
jksoft 0:5975af170e43 509
jksoft 0:5975af170e43 510 #else
jksoft 0:5975af170e43 511 #error Wrong LFN configuration.
jksoft 0:5975af170e43 512 #endif
jksoft 0:5975af170e43 513
jksoft 0:5975af170e43 514
jksoft 0:5975af170e43 515
jksoft 0:5975af170e43 516
jksoft 0:5975af170e43 517 /*--------------------------------------------------------------------------
jksoft 0:5975af170e43 518
jksoft 0:5975af170e43 519 Module Private Functions
jksoft 0:5975af170e43 520
jksoft 0:5975af170e43 521 ---------------------------------------------------------------------------*/
jksoft 0:5975af170e43 522
jksoft 0:5975af170e43 523
jksoft 0:5975af170e43 524 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 525 /* String functions */
jksoft 0:5975af170e43 526 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 527
jksoft 0:5975af170e43 528 /* Copy memory to memory */
jksoft 0:5975af170e43 529 static
jksoft 0:5975af170e43 530 void mem_cpy (void* dst, const void* src, UINT cnt) {
jksoft 0:5975af170e43 531 BYTE *d = (BYTE*)dst;
jksoft 0:5975af170e43 532 const BYTE *s = (const BYTE*)src;
jksoft 0:5975af170e43 533
jksoft 0:5975af170e43 534 #if _WORD_ACCESS == 1
jksoft 0:5975af170e43 535 while (cnt >= sizeof (int)) {
jksoft 0:5975af170e43 536 *(int*)d = *(int*)s;
jksoft 0:5975af170e43 537 d += sizeof (int); s += sizeof (int);
jksoft 0:5975af170e43 538 cnt -= sizeof (int);
jksoft 0:5975af170e43 539 }
jksoft 0:5975af170e43 540 #endif
jksoft 0:5975af170e43 541 while (cnt--)
jksoft 0:5975af170e43 542 *d++ = *s++;
jksoft 0:5975af170e43 543 }
jksoft 0:5975af170e43 544
jksoft 0:5975af170e43 545 /* Fill memory */
jksoft 0:5975af170e43 546 static
jksoft 0:5975af170e43 547 void mem_set (void* dst, int val, UINT cnt) {
jksoft 0:5975af170e43 548 BYTE *d = (BYTE*)dst;
jksoft 0:5975af170e43 549
jksoft 0:5975af170e43 550 while (cnt--)
jksoft 0:5975af170e43 551 *d++ = (BYTE)val;
jksoft 0:5975af170e43 552 }
jksoft 0:5975af170e43 553
jksoft 0:5975af170e43 554 /* Compare memory to memory */
jksoft 0:5975af170e43 555 static
jksoft 0:5975af170e43 556 int mem_cmp (const void* dst, const void* src, UINT cnt) {
jksoft 0:5975af170e43 557 const BYTE *d = (const BYTE *)dst, *s = (const BYTE *)src;
jksoft 0:5975af170e43 558 int r = 0;
jksoft 0:5975af170e43 559
jksoft 0:5975af170e43 560 while (cnt-- && (r = *d++ - *s++) == 0) ;
jksoft 0:5975af170e43 561 return r;
jksoft 0:5975af170e43 562 }
jksoft 0:5975af170e43 563
jksoft 0:5975af170e43 564 /* Check if chr is contained in the string */
jksoft 0:5975af170e43 565 static
jksoft 0:5975af170e43 566 int chk_chr (const char* str, int chr) {
jksoft 0:5975af170e43 567 while (*str && *str != chr) str++;
jksoft 0:5975af170e43 568 return *str;
jksoft 0:5975af170e43 569 }
jksoft 0:5975af170e43 570
jksoft 0:5975af170e43 571
jksoft 0:5975af170e43 572
jksoft 0:5975af170e43 573 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 574 /* Request/Release grant to access the volume */
jksoft 0:5975af170e43 575 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 576 #if _FS_REENTRANT
jksoft 0:5975af170e43 577
jksoft 0:5975af170e43 578 static
jksoft 0:5975af170e43 579 int lock_fs (
jksoft 0:5975af170e43 580 FATFS *fs /* File system object */
jksoft 0:5975af170e43 581 )
jksoft 0:5975af170e43 582 {
jksoft 0:5975af170e43 583 return ff_req_grant(fs->sobj);
jksoft 0:5975af170e43 584 }
jksoft 0:5975af170e43 585
jksoft 0:5975af170e43 586
jksoft 0:5975af170e43 587 static
jksoft 0:5975af170e43 588 void unlock_fs (
jksoft 0:5975af170e43 589 FATFS *fs, /* File system object */
jksoft 0:5975af170e43 590 FRESULT res /* Result code to be returned */
jksoft 0:5975af170e43 591 )
jksoft 0:5975af170e43 592 {
jksoft 0:5975af170e43 593 if (fs &&
jksoft 0:5975af170e43 594 res != FR_NOT_ENABLED &&
jksoft 0:5975af170e43 595 res != FR_INVALID_DRIVE &&
jksoft 0:5975af170e43 596 res != FR_INVALID_OBJECT &&
jksoft 0:5975af170e43 597 res != FR_TIMEOUT) {
jksoft 0:5975af170e43 598 ff_rel_grant(fs->sobj);
jksoft 0:5975af170e43 599 }
jksoft 0:5975af170e43 600 }
jksoft 0:5975af170e43 601 #endif
jksoft 0:5975af170e43 602
jksoft 0:5975af170e43 603
jksoft 0:5975af170e43 604
jksoft 0:5975af170e43 605 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 606 /* File lock control functions */
jksoft 0:5975af170e43 607 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 608 #if _FS_LOCK
jksoft 0:5975af170e43 609
jksoft 0:5975af170e43 610 static
jksoft 0:5975af170e43 611 FRESULT chk_lock ( /* Check if the file can be accessed */
jksoft 0:5975af170e43 612 DIR* dj, /* Directory object pointing the file to be checked */
jksoft 0:5975af170e43 613 int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
jksoft 0:5975af170e43 614 )
jksoft 0:5975af170e43 615 {
jksoft 0:5975af170e43 616 UINT i, be;
jksoft 0:5975af170e43 617
jksoft 0:5975af170e43 618 /* Search file semaphore table */
jksoft 0:5975af170e43 619 for (i = be = 0; i < _FS_LOCK; i++) {
jksoft 0:5975af170e43 620 if (Files[i].fs) { /* Existing entry */
jksoft 0:5975af170e43 621 if (Files[i].fs == dj->fs && /* Check if the file matched with an open file */
jksoft 0:5975af170e43 622 Files[i].clu == dj->sclust &&
jksoft 0:5975af170e43 623 Files[i].idx == dj->index) break;
jksoft 0:5975af170e43 624 } else { /* Blank entry */
jksoft 0:5975af170e43 625 be++;
jksoft 0:5975af170e43 626 }
jksoft 0:5975af170e43 627 }
jksoft 0:5975af170e43 628 if (i == _FS_LOCK) /* The file is not opened */
jksoft 0:5975af170e43 629 return (be || acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new file? */
jksoft 0:5975af170e43 630
jksoft 0:5975af170e43 631 /* The file has been opened. Reject any open against writing file and all write mode open */
jksoft 0:5975af170e43 632 return (acc || Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
jksoft 0:5975af170e43 633 }
jksoft 0:5975af170e43 634
jksoft 0:5975af170e43 635
jksoft 0:5975af170e43 636 static
jksoft 0:5975af170e43 637 int enq_lock (void) /* Check if an entry is available for a new file */
jksoft 0:5975af170e43 638 {
jksoft 0:5975af170e43 639 UINT i;
jksoft 0:5975af170e43 640
jksoft 0:5975af170e43 641 for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
jksoft 0:5975af170e43 642 return (i == _FS_LOCK) ? 0 : 1;
jksoft 0:5975af170e43 643 }
jksoft 0:5975af170e43 644
jksoft 0:5975af170e43 645
jksoft 0:5975af170e43 646 static
jksoft 0:5975af170e43 647 UINT inc_lock ( /* Increment file open counter and returns its index (0:int error) */
jksoft 0:5975af170e43 648 DIR* dj, /* Directory object pointing the file to register or increment */
jksoft 0:5975af170e43 649 int acc /* Desired access mode (0:Read, !0:Write) */
jksoft 0:5975af170e43 650 )
jksoft 0:5975af170e43 651 {
jksoft 0:5975af170e43 652 UINT i;
jksoft 0:5975af170e43 653
jksoft 0:5975af170e43 654
jksoft 0:5975af170e43 655 for (i = 0; i < _FS_LOCK; i++) { /* Find the file */
jksoft 0:5975af170e43 656 if (Files[i].fs == dj->fs &&
jksoft 0:5975af170e43 657 Files[i].clu == dj->sclust &&
jksoft 0:5975af170e43 658 Files[i].idx == dj->index) break;
jksoft 0:5975af170e43 659 }
jksoft 0:5975af170e43 660
jksoft 0:5975af170e43 661 if (i == _FS_LOCK) { /* Not opened. Register it as new. */
jksoft 0:5975af170e43 662 for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
jksoft 0:5975af170e43 663 if (i == _FS_LOCK) return 0; /* No space to register (int err) */
jksoft 0:5975af170e43 664 Files[i].fs = dj->fs;
jksoft 0:5975af170e43 665 Files[i].clu = dj->sclust;
jksoft 0:5975af170e43 666 Files[i].idx = dj->index;
jksoft 0:5975af170e43 667 Files[i].ctr = 0;
jksoft 0:5975af170e43 668 }
jksoft 0:5975af170e43 669
jksoft 0:5975af170e43 670 if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
jksoft 0:5975af170e43 671
jksoft 0:5975af170e43 672 Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
jksoft 0:5975af170e43 673
jksoft 0:5975af170e43 674 return i + 1;
jksoft 0:5975af170e43 675 }
jksoft 0:5975af170e43 676
jksoft 0:5975af170e43 677
jksoft 0:5975af170e43 678 static
jksoft 0:5975af170e43 679 FRESULT dec_lock ( /* Decrement file open counter */
jksoft 0:5975af170e43 680 UINT i /* Semaphore index */
jksoft 0:5975af170e43 681 )
jksoft 0:5975af170e43 682 {
jksoft 0:5975af170e43 683 WORD n;
jksoft 0:5975af170e43 684 FRESULT res;
jksoft 0:5975af170e43 685
jksoft 0:5975af170e43 686
jksoft 0:5975af170e43 687 if (--i < _FS_LOCK) {
jksoft 0:5975af170e43 688 n = Files[i].ctr;
jksoft 0:5975af170e43 689 if (n == 0x100) n = 0;
jksoft 0:5975af170e43 690 if (n) n--;
jksoft 0:5975af170e43 691 Files[i].ctr = n;
jksoft 0:5975af170e43 692 if (!n) Files[i].fs = 0;
jksoft 0:5975af170e43 693 res = FR_OK;
jksoft 0:5975af170e43 694 } else {
jksoft 0:5975af170e43 695 res = FR_INT_ERR;
jksoft 0:5975af170e43 696 }
jksoft 0:5975af170e43 697 return res;
jksoft 0:5975af170e43 698 }
jksoft 0:5975af170e43 699
jksoft 0:5975af170e43 700
jksoft 0:5975af170e43 701 static
jksoft 0:5975af170e43 702 void clear_lock ( /* Clear lock entries of the volume */
jksoft 0:5975af170e43 703 FATFS *fs
jksoft 0:5975af170e43 704 )
jksoft 0:5975af170e43 705 {
jksoft 0:5975af170e43 706 UINT i;
jksoft 0:5975af170e43 707
jksoft 0:5975af170e43 708 for (i = 0; i < _FS_LOCK; i++) {
jksoft 0:5975af170e43 709 if (Files[i].fs == fs) Files[i].fs = 0;
jksoft 0:5975af170e43 710 }
jksoft 0:5975af170e43 711 }
jksoft 0:5975af170e43 712 #endif
jksoft 0:5975af170e43 713
jksoft 0:5975af170e43 714
jksoft 0:5975af170e43 715
jksoft 0:5975af170e43 716 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 717 /* Change window offset */
jksoft 0:5975af170e43 718 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 719
jksoft 0:5975af170e43 720 static
jksoft 0:5975af170e43 721 FRESULT move_window (
jksoft 0:5975af170e43 722 FATFS *fs, /* File system object */
jksoft 0:5975af170e43 723 DWORD sector /* Sector number to make appearance in the fs->win[] */
jksoft 0:5975af170e43 724 ) /* Move to zero only writes back dirty window */
jksoft 0:5975af170e43 725 {
jksoft 0:5975af170e43 726 DWORD wsect;
jksoft 0:5975af170e43 727
jksoft 0:5975af170e43 728
jksoft 0:5975af170e43 729 wsect = fs->winsect;
jksoft 0:5975af170e43 730 if (wsect != sector) { /* Changed current window */
jksoft 0:5975af170e43 731 #if !_FS_READONLY
jksoft 0:5975af170e43 732 if (fs->wflag) { /* Write back dirty window if needed */
jksoft 0:5975af170e43 733 if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK)
jksoft 0:5975af170e43 734 return FR_DISK_ERR;
jksoft 0:5975af170e43 735 fs->wflag = 0;
jksoft 0:5975af170e43 736 if (wsect < (fs->fatbase + fs->fsize)) { /* In FAT area */
jksoft 0:5975af170e43 737 BYTE nf;
jksoft 0:5975af170e43 738 for (nf = fs->n_fats; nf > 1; nf--) { /* Reflect the change to all FAT copies */
jksoft 0:5975af170e43 739 wsect += fs->fsize;
jksoft 0:5975af170e43 740 disk_write(fs->drv, fs->win, wsect, 1);
jksoft 0:5975af170e43 741 }
jksoft 0:5975af170e43 742 }
jksoft 0:5975af170e43 743 }
jksoft 0:5975af170e43 744 #endif
jksoft 0:5975af170e43 745 if (sector) {
jksoft 0:5975af170e43 746 if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK)
jksoft 0:5975af170e43 747 return FR_DISK_ERR;
jksoft 0:5975af170e43 748 fs->winsect = sector;
jksoft 0:5975af170e43 749 }
jksoft 0:5975af170e43 750 }
jksoft 0:5975af170e43 751
jksoft 0:5975af170e43 752 return FR_OK;
jksoft 0:5975af170e43 753 }
jksoft 0:5975af170e43 754
jksoft 0:5975af170e43 755
jksoft 0:5975af170e43 756
jksoft 0:5975af170e43 757
jksoft 0:5975af170e43 758 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 759 /* Clean-up cached data */
jksoft 0:5975af170e43 760 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 761 #if !_FS_READONLY
jksoft 0:5975af170e43 762 static
jksoft 0:5975af170e43 763 FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */
jksoft 0:5975af170e43 764 FATFS *fs /* File system object */
jksoft 0:5975af170e43 765 )
jksoft 0:5975af170e43 766 {
jksoft 0:5975af170e43 767 FRESULT res;
jksoft 0:5975af170e43 768
jksoft 0:5975af170e43 769
jksoft 0:5975af170e43 770 res = move_window(fs, 0);
jksoft 0:5975af170e43 771 if (res == FR_OK) {
jksoft 0:5975af170e43 772 /* Update FSInfo sector if needed */
jksoft 0:5975af170e43 773 if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
jksoft 0:5975af170e43 774 fs->winsect = 0;
jksoft 0:5975af170e43 775 /* Create FSInfo structure */
jksoft 0:5975af170e43 776 mem_set(fs->win, 0, 512);
jksoft 0:5975af170e43 777 ST_WORD(fs->win+BS_55AA, 0xAA55);
jksoft 0:5975af170e43 778 ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
jksoft 0:5975af170e43 779 ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
jksoft 0:5975af170e43 780 ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
jksoft 0:5975af170e43 781 ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
jksoft 0:5975af170e43 782 /* Write it into the FSInfo sector */
jksoft 0:5975af170e43 783 disk_write(fs->drv, fs->win, fs->fsi_sector, 1);
jksoft 0:5975af170e43 784 fs->fsi_flag = 0;
jksoft 0:5975af170e43 785 }
jksoft 0:5975af170e43 786 /* Make sure that no pending write process in the physical drive */
jksoft 0:5975af170e43 787 if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
jksoft 0:5975af170e43 788 res = FR_DISK_ERR;
jksoft 0:5975af170e43 789 }
jksoft 0:5975af170e43 790
jksoft 0:5975af170e43 791 return res;
jksoft 0:5975af170e43 792 }
jksoft 0:5975af170e43 793 #endif
jksoft 0:5975af170e43 794
jksoft 0:5975af170e43 795
jksoft 0:5975af170e43 796
jksoft 0:5975af170e43 797
jksoft 0:5975af170e43 798 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 799 /* Get sector# from cluster# */
jksoft 0:5975af170e43 800 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 801
jksoft 0:5975af170e43 802
jksoft 0:5975af170e43 803 DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
jksoft 0:5975af170e43 804 FATFS *fs, /* File system object */
jksoft 0:5975af170e43 805 DWORD clst /* Cluster# to be converted */
jksoft 0:5975af170e43 806 )
jksoft 0:5975af170e43 807 {
jksoft 0:5975af170e43 808 clst -= 2;
jksoft 0:5975af170e43 809 if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
jksoft 0:5975af170e43 810 return clst * fs->csize + fs->database;
jksoft 0:5975af170e43 811 }
jksoft 0:5975af170e43 812
jksoft 0:5975af170e43 813
jksoft 0:5975af170e43 814
jksoft 0:5975af170e43 815
jksoft 0:5975af170e43 816 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 817 /* FAT access - Read value of a FAT entry */
jksoft 0:5975af170e43 818 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 819
jksoft 0:5975af170e43 820
jksoft 0:5975af170e43 821 DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
jksoft 0:5975af170e43 822 FATFS *fs, /* File system object */
jksoft 0:5975af170e43 823 DWORD clst /* Cluster# to get the link information */
jksoft 0:5975af170e43 824 )
jksoft 0:5975af170e43 825 {
jksoft 0:5975af170e43 826 UINT wc, bc;
jksoft 0:5975af170e43 827 BYTE *p;
jksoft 0:5975af170e43 828
jksoft 0:5975af170e43 829
jksoft 0:5975af170e43 830 if (clst < 2 || clst >= fs->n_fatent) /* Check range */
jksoft 0:5975af170e43 831 return 1;
jksoft 0:5975af170e43 832
jksoft 0:5975af170e43 833 switch (fs->fs_type) {
jksoft 0:5975af170e43 834 case FS_FAT12 :
jksoft 0:5975af170e43 835 bc = (UINT)clst; bc += bc / 2;
jksoft 0:5975af170e43 836 if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
jksoft 0:5975af170e43 837 wc = fs->win[bc % SS(fs)]; bc++;
jksoft 0:5975af170e43 838 if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
jksoft 0:5975af170e43 839 wc |= fs->win[bc % SS(fs)] << 8;
jksoft 0:5975af170e43 840 return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
jksoft 0:5975af170e43 841
jksoft 0:5975af170e43 842 case FS_FAT16 :
jksoft 0:5975af170e43 843 if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
jksoft 0:5975af170e43 844 p = &fs->win[clst * 2 % SS(fs)];
jksoft 0:5975af170e43 845 return LD_WORD(p);
jksoft 0:5975af170e43 846
jksoft 0:5975af170e43 847 case FS_FAT32 :
jksoft 0:5975af170e43 848 if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
jksoft 0:5975af170e43 849 p = &fs->win[clst * 4 % SS(fs)];
jksoft 0:5975af170e43 850 return LD_DWORD(p) & 0x0FFFFFFF;
jksoft 0:5975af170e43 851 }
jksoft 0:5975af170e43 852
jksoft 0:5975af170e43 853 return 0xFFFFFFFF; /* An error occurred at the disk I/O layer */
jksoft 0:5975af170e43 854 }
jksoft 0:5975af170e43 855
jksoft 0:5975af170e43 856
jksoft 0:5975af170e43 857
jksoft 0:5975af170e43 858
jksoft 0:5975af170e43 859 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 860 /* FAT access - Change value of a FAT entry */
jksoft 0:5975af170e43 861 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 862 #if !_FS_READONLY
jksoft 0:5975af170e43 863
jksoft 0:5975af170e43 864 FRESULT put_fat (
jksoft 0:5975af170e43 865 FATFS *fs, /* File system object */
jksoft 0:5975af170e43 866 DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
jksoft 0:5975af170e43 867 DWORD val /* New value to mark the cluster */
jksoft 0:5975af170e43 868 )
jksoft 0:5975af170e43 869 {
jksoft 0:5975af170e43 870 UINT bc;
jksoft 0:5975af170e43 871 BYTE *p;
jksoft 0:5975af170e43 872 FRESULT res;
jksoft 0:5975af170e43 873
jksoft 0:5975af170e43 874
jksoft 0:5975af170e43 875 if (clst < 2 || clst >= fs->n_fatent) { /* Check range */
jksoft 0:5975af170e43 876 res = FR_INT_ERR;
jksoft 0:5975af170e43 877
jksoft 0:5975af170e43 878 } else {
jksoft 0:5975af170e43 879 switch (fs->fs_type) {
jksoft 0:5975af170e43 880 case FS_FAT12 :
jksoft 0:5975af170e43 881 bc = (UINT)clst; bc += bc / 2;
jksoft 0:5975af170e43 882 res = move_window(fs, fs->fatbase + (bc / SS(fs)));
jksoft 0:5975af170e43 883 if (res != FR_OK) break;
jksoft 0:5975af170e43 884 p = &fs->win[bc % SS(fs)];
jksoft 0:5975af170e43 885 *p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val;
jksoft 0:5975af170e43 886 bc++;
jksoft 0:5975af170e43 887 fs->wflag = 1;
jksoft 0:5975af170e43 888 res = move_window(fs, fs->fatbase + (bc / SS(fs)));
jksoft 0:5975af170e43 889 if (res != FR_OK) break;
jksoft 0:5975af170e43 890 p = &fs->win[bc % SS(fs)];
jksoft 0:5975af170e43 891 *p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F));
jksoft 0:5975af170e43 892 break;
jksoft 0:5975af170e43 893
jksoft 0:5975af170e43 894 case FS_FAT16 :
jksoft 0:5975af170e43 895 res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
jksoft 0:5975af170e43 896 if (res != FR_OK) break;
jksoft 0:5975af170e43 897 p = &fs->win[clst * 2 % SS(fs)];
jksoft 0:5975af170e43 898 ST_WORD(p, (WORD)val);
jksoft 0:5975af170e43 899 break;
jksoft 0:5975af170e43 900
jksoft 0:5975af170e43 901 case FS_FAT32 :
jksoft 0:5975af170e43 902 res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
jksoft 0:5975af170e43 903 if (res != FR_OK) break;
jksoft 0:5975af170e43 904 p = &fs->win[clst * 4 % SS(fs)];
jksoft 0:5975af170e43 905 val |= LD_DWORD(p) & 0xF0000000;
jksoft 0:5975af170e43 906 ST_DWORD(p, val);
jksoft 0:5975af170e43 907 break;
jksoft 0:5975af170e43 908
jksoft 0:5975af170e43 909 default :
jksoft 0:5975af170e43 910 res = FR_INT_ERR;
jksoft 0:5975af170e43 911 }
jksoft 0:5975af170e43 912 fs->wflag = 1;
jksoft 0:5975af170e43 913 }
jksoft 0:5975af170e43 914
jksoft 0:5975af170e43 915 return res;
jksoft 0:5975af170e43 916 }
jksoft 0:5975af170e43 917 #endif /* !_FS_READONLY */
jksoft 0:5975af170e43 918
jksoft 0:5975af170e43 919
jksoft 0:5975af170e43 920
jksoft 0:5975af170e43 921
jksoft 0:5975af170e43 922 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 923 /* FAT handling - Remove a cluster chain */
jksoft 0:5975af170e43 924 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 925 #if !_FS_READONLY
jksoft 0:5975af170e43 926 static
jksoft 0:5975af170e43 927 FRESULT remove_chain (
jksoft 0:5975af170e43 928 FATFS *fs, /* File system object */
jksoft 0:5975af170e43 929 DWORD clst /* Cluster# to remove a chain from */
jksoft 0:5975af170e43 930 )
jksoft 0:5975af170e43 931 {
jksoft 0:5975af170e43 932 FRESULT res;
jksoft 0:5975af170e43 933 DWORD nxt;
jksoft 0:5975af170e43 934 #if _USE_ERASE
jksoft 0:5975af170e43 935 DWORD scl = clst, ecl = clst, rt[2];
jksoft 0:5975af170e43 936 #endif
jksoft 0:5975af170e43 937
jksoft 0:5975af170e43 938 if (clst < 2 || clst >= fs->n_fatent) { /* Check range */
jksoft 0:5975af170e43 939 res = FR_INT_ERR;
jksoft 0:5975af170e43 940
jksoft 0:5975af170e43 941 } else {
jksoft 0:5975af170e43 942 res = FR_OK;
jksoft 0:5975af170e43 943 while (clst < fs->n_fatent) { /* Not a last link? */
jksoft 0:5975af170e43 944 nxt = get_fat(fs, clst); /* Get cluster status */
jksoft 0:5975af170e43 945 if (nxt == 0) break; /* Empty cluster? */
jksoft 0:5975af170e43 946 if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
jksoft 0:5975af170e43 947 if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
jksoft 0:5975af170e43 948 res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
jksoft 0:5975af170e43 949 if (res != FR_OK) break;
jksoft 0:5975af170e43 950 if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */
jksoft 0:5975af170e43 951 fs->free_clust++;
jksoft 0:5975af170e43 952 fs->fsi_flag = 1;
jksoft 0:5975af170e43 953 }
jksoft 0:5975af170e43 954 #if _USE_ERASE
jksoft 0:5975af170e43 955 if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
jksoft 0:5975af170e43 956 ecl = nxt;
jksoft 0:5975af170e43 957 } else { /* End of contiguous clusters */
jksoft 0:5975af170e43 958 rt[0] = clust2sect(fs, scl); /* Start sector */
jksoft 0:5975af170e43 959 rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
jksoft 0:5975af170e43 960 disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, rt); /* Erase the block */
jksoft 0:5975af170e43 961 scl = ecl = nxt;
jksoft 0:5975af170e43 962 }
jksoft 0:5975af170e43 963 #endif
jksoft 0:5975af170e43 964 clst = nxt; /* Next cluster */
jksoft 0:5975af170e43 965 }
jksoft 0:5975af170e43 966 }
jksoft 0:5975af170e43 967
jksoft 0:5975af170e43 968 return res;
jksoft 0:5975af170e43 969 }
jksoft 0:5975af170e43 970 #endif
jksoft 0:5975af170e43 971
jksoft 0:5975af170e43 972
jksoft 0:5975af170e43 973
jksoft 0:5975af170e43 974
jksoft 0:5975af170e43 975 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 976 /* FAT handling - Stretch or Create a cluster chain */
jksoft 0:5975af170e43 977 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 978 #if !_FS_READONLY
jksoft 0:5975af170e43 979 static
jksoft 0:5975af170e43 980 DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
jksoft 0:5975af170e43 981 FATFS *fs, /* File system object */
jksoft 0:5975af170e43 982 DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
jksoft 0:5975af170e43 983 )
jksoft 0:5975af170e43 984 {
jksoft 0:5975af170e43 985 DWORD cs, ncl, scl;
jksoft 0:5975af170e43 986 FRESULT res;
jksoft 0:5975af170e43 987
jksoft 0:5975af170e43 988
jksoft 0:5975af170e43 989 if (clst == 0) { /* Create a new chain */
jksoft 0:5975af170e43 990 scl = fs->last_clust; /* Get suggested start point */
jksoft 0:5975af170e43 991 if (!scl || scl >= fs->n_fatent) scl = 1;
jksoft 0:5975af170e43 992 }
jksoft 0:5975af170e43 993 else { /* Stretch the current chain */
jksoft 0:5975af170e43 994 cs = get_fat(fs, clst); /* Check the cluster status */
jksoft 0:5975af170e43 995 if (cs < 2) return 1; /* It is an invalid cluster */
jksoft 0:5975af170e43 996 if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
jksoft 0:5975af170e43 997 scl = clst;
jksoft 0:5975af170e43 998 }
jksoft 0:5975af170e43 999
jksoft 0:5975af170e43 1000 ncl = scl; /* Start cluster */
jksoft 0:5975af170e43 1001 for (;;) {
jksoft 0:5975af170e43 1002 ncl++; /* Next cluster */
jksoft 0:5975af170e43 1003 if (ncl >= fs->n_fatent) { /* Wrap around */
jksoft 0:5975af170e43 1004 ncl = 2;
jksoft 0:5975af170e43 1005 if (ncl > scl) return 0; /* No free cluster */
jksoft 0:5975af170e43 1006 }
jksoft 0:5975af170e43 1007 cs = get_fat(fs, ncl); /* Get the cluster status */
jksoft 0:5975af170e43 1008 if (cs == 0) break; /* Found a free cluster */
jksoft 0:5975af170e43 1009 if (cs == 0xFFFFFFFF || cs == 1)/* An error occurred */
jksoft 0:5975af170e43 1010 return cs;
jksoft 0:5975af170e43 1011 if (ncl == scl) return 0; /* No free cluster */
jksoft 0:5975af170e43 1012 }
jksoft 0:5975af170e43 1013
jksoft 0:5975af170e43 1014 res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
jksoft 0:5975af170e43 1015 if (res == FR_OK && clst != 0) {
jksoft 0:5975af170e43 1016 res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
jksoft 0:5975af170e43 1017 }
jksoft 0:5975af170e43 1018 if (res == FR_OK) {
jksoft 0:5975af170e43 1019 fs->last_clust = ncl; /* Update FSINFO */
jksoft 0:5975af170e43 1020 if (fs->free_clust != 0xFFFFFFFF) {
jksoft 0:5975af170e43 1021 fs->free_clust--;
jksoft 0:5975af170e43 1022 fs->fsi_flag = 1;
jksoft 0:5975af170e43 1023 }
jksoft 0:5975af170e43 1024 } else {
jksoft 0:5975af170e43 1025 ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
jksoft 0:5975af170e43 1026 }
jksoft 0:5975af170e43 1027
jksoft 0:5975af170e43 1028 return ncl; /* Return new cluster number or error code */
jksoft 0:5975af170e43 1029 }
jksoft 0:5975af170e43 1030 #endif /* !_FS_READONLY */
jksoft 0:5975af170e43 1031
jksoft 0:5975af170e43 1032
jksoft 0:5975af170e43 1033
jksoft 0:5975af170e43 1034 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1035 /* FAT handling - Convert offset into cluster with link map table */
jksoft 0:5975af170e43 1036 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1037
jksoft 0:5975af170e43 1038 #if _USE_FASTSEEK
jksoft 0:5975af170e43 1039 static
jksoft 0:5975af170e43 1040 DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
jksoft 0:5975af170e43 1041 FIL* fp, /* Pointer to the file object */
jksoft 0:5975af170e43 1042 DWORD ofs /* File offset to be converted to cluster# */
jksoft 0:5975af170e43 1043 )
jksoft 0:5975af170e43 1044 {
jksoft 0:5975af170e43 1045 DWORD cl, ncl, *tbl;
jksoft 0:5975af170e43 1046
jksoft 0:5975af170e43 1047
jksoft 0:5975af170e43 1048 tbl = fp->cltbl + 1; /* Top of CLMT */
jksoft 0:5975af170e43 1049 cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
jksoft 0:5975af170e43 1050 for (;;) {
jksoft 0:5975af170e43 1051 ncl = *tbl++; /* Number of cluters in the fragment */
jksoft 0:5975af170e43 1052 if (!ncl) return 0; /* End of table? (error) */
jksoft 0:5975af170e43 1053 if (cl < ncl) break; /* In this fragment? */
jksoft 0:5975af170e43 1054 cl -= ncl; tbl++; /* Next fragment */
jksoft 0:5975af170e43 1055 }
jksoft 0:5975af170e43 1056 return cl + *tbl; /* Return the cluster number */
jksoft 0:5975af170e43 1057 }
jksoft 0:5975af170e43 1058 #endif /* _USE_FASTSEEK */
jksoft 0:5975af170e43 1059
jksoft 0:5975af170e43 1060
jksoft 0:5975af170e43 1061
jksoft 0:5975af170e43 1062 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1063 /* Directory handling - Set directory index */
jksoft 0:5975af170e43 1064 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1065
jksoft 0:5975af170e43 1066 static
jksoft 0:5975af170e43 1067 FRESULT dir_sdi (
jksoft 0:5975af170e43 1068 FATFS_DIR *dj, /* Pointer to directory object */
jksoft 0:5975af170e43 1069 WORD idx /* Index of directory table */
jksoft 0:5975af170e43 1070 )
jksoft 0:5975af170e43 1071 {
jksoft 0:5975af170e43 1072 DWORD clst;
jksoft 0:5975af170e43 1073 WORD ic;
jksoft 0:5975af170e43 1074
jksoft 0:5975af170e43 1075
jksoft 0:5975af170e43 1076 dj->index = idx;
jksoft 0:5975af170e43 1077 clst = dj->sclust;
jksoft 0:5975af170e43 1078 if (clst == 1 || clst >= dj->fs->n_fatent) /* Check start cluster range */
jksoft 0:5975af170e43 1079 return FR_INT_ERR;
jksoft 0:5975af170e43 1080 if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
jksoft 0:5975af170e43 1081 clst = dj->fs->dirbase;
jksoft 0:5975af170e43 1082
jksoft 0:5975af170e43 1083 if (clst == 0) { /* Static table (root-dir in FAT12/16) */
jksoft 0:5975af170e43 1084 dj->clust = clst;
jksoft 0:5975af170e43 1085 if (idx >= dj->fs->n_rootdir) /* Index is out of range */
jksoft 0:5975af170e43 1086 return FR_INT_ERR;
jksoft 0:5975af170e43 1087 dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
jksoft 0:5975af170e43 1088 }
jksoft 0:5975af170e43 1089 else { /* Dynamic table (sub-dirs or root-dir in FAT32) */
jksoft 0:5975af170e43 1090 ic = SS(dj->fs) / SZ_DIR * dj->fs->csize; /* Entries per cluster */
jksoft 0:5975af170e43 1091 while (idx >= ic) { /* Follow cluster chain */
jksoft 0:5975af170e43 1092 clst = get_fat(dj->fs, clst); /* Get next cluster */
jksoft 0:5975af170e43 1093 if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
jksoft 0:5975af170e43 1094 if (clst < 2 || clst >= dj->fs->n_fatent) /* Reached to end of table or int error */
jksoft 0:5975af170e43 1095 return FR_INT_ERR;
jksoft 0:5975af170e43 1096 idx -= ic;
jksoft 0:5975af170e43 1097 }
jksoft 0:5975af170e43 1098 dj->clust = clst;
jksoft 0:5975af170e43 1099 dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
jksoft 0:5975af170e43 1100 }
jksoft 0:5975af170e43 1101
jksoft 0:5975af170e43 1102 dj->dir = dj->fs->win + (idx % (SS(dj->fs) / SZ_DIR)) * SZ_DIR; /* Ptr to the entry in the sector */
jksoft 0:5975af170e43 1103
jksoft 0:5975af170e43 1104 return FR_OK; /* Seek succeeded */
jksoft 0:5975af170e43 1105 }
jksoft 0:5975af170e43 1106
jksoft 0:5975af170e43 1107
jksoft 0:5975af170e43 1108
jksoft 0:5975af170e43 1109
jksoft 0:5975af170e43 1110 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1111 /* Directory handling - Move directory table index next */
jksoft 0:5975af170e43 1112 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1113
jksoft 0:5975af170e43 1114 static
jksoft 0:5975af170e43 1115 FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not stretch */
jksoft 0:5975af170e43 1116 FATFS_DIR *dj, /* Pointer to directory object */
jksoft 0:5975af170e43 1117 int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
jksoft 0:5975af170e43 1118 )
jksoft 0:5975af170e43 1119 {
jksoft 0:5975af170e43 1120 DWORD clst;
jksoft 0:5975af170e43 1121 WORD i;
jksoft 0:5975af170e43 1122
jksoft 0:5975af170e43 1123
jksoft 0:5975af170e43 1124 stretch = stretch; /* To suppress warning on read-only cfg. */
jksoft 0:5975af170e43 1125 i = dj->index + 1;
jksoft 0:5975af170e43 1126 if (!i || !dj->sect) /* Report EOT when index has reached 65535 */
jksoft 0:5975af170e43 1127 return FR_NO_FILE;
jksoft 0:5975af170e43 1128
jksoft 0:5975af170e43 1129 if (!(i % (SS(dj->fs) / SZ_DIR))) { /* Sector changed? */
jksoft 0:5975af170e43 1130 dj->sect++; /* Next sector */
jksoft 0:5975af170e43 1131
jksoft 0:5975af170e43 1132 if (dj->clust == 0) { /* Static table */
jksoft 0:5975af170e43 1133 if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */
jksoft 0:5975af170e43 1134 return FR_NO_FILE;
jksoft 0:5975af170e43 1135 }
jksoft 0:5975af170e43 1136 else { /* Dynamic table */
jksoft 0:5975af170e43 1137 if (((i / (SS(dj->fs) / SZ_DIR)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
jksoft 0:5975af170e43 1138 clst = get_fat(dj->fs, dj->clust); /* Get next cluster */
jksoft 0:5975af170e43 1139 if (clst <= 1) return FR_INT_ERR;
jksoft 0:5975af170e43 1140 if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
jksoft 0:5975af170e43 1141 if (clst >= dj->fs->n_fatent) { /* When it reached end of dynamic table */
jksoft 0:5975af170e43 1142 #if !_FS_READONLY
jksoft 0:5975af170e43 1143 BYTE c;
jksoft 0:5975af170e43 1144 if (!stretch) return FR_NO_FILE; /* When do not stretch, report EOT */
jksoft 0:5975af170e43 1145 clst = create_chain(dj->fs, dj->clust); /* Stretch cluster chain */
jksoft 0:5975af170e43 1146 if (clst == 0) return FR_DENIED; /* No free cluster */
jksoft 0:5975af170e43 1147 if (clst == 1) return FR_INT_ERR;
jksoft 0:5975af170e43 1148 if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
jksoft 0:5975af170e43 1149 /* Clean-up stretched table */
jksoft 0:5975af170e43 1150 if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */
jksoft 0:5975af170e43 1151 mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */
jksoft 0:5975af170e43 1152 dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */
jksoft 0:5975af170e43 1153 for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */
jksoft 0:5975af170e43 1154 dj->fs->wflag = 1;
jksoft 0:5975af170e43 1155 if (move_window(dj->fs, 0)) return FR_DISK_ERR;
jksoft 0:5975af170e43 1156 dj->fs->winsect++;
jksoft 0:5975af170e43 1157 }
jksoft 0:5975af170e43 1158 dj->fs->winsect -= c; /* Rewind window address */
jksoft 0:5975af170e43 1159 #else
jksoft 0:5975af170e43 1160 return FR_NO_FILE; /* Report EOT */
jksoft 0:5975af170e43 1161 #endif
jksoft 0:5975af170e43 1162 }
jksoft 0:5975af170e43 1163 dj->clust = clst; /* Initialize data for new cluster */
jksoft 0:5975af170e43 1164 dj->sect = clust2sect(dj->fs, clst);
jksoft 0:5975af170e43 1165 }
jksoft 0:5975af170e43 1166 }
jksoft 0:5975af170e43 1167 }
jksoft 0:5975af170e43 1168
jksoft 0:5975af170e43 1169 dj->index = i;
jksoft 0:5975af170e43 1170 dj->dir = dj->fs->win + (i % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;
jksoft 0:5975af170e43 1171
jksoft 0:5975af170e43 1172 return FR_OK;
jksoft 0:5975af170e43 1173 }
jksoft 0:5975af170e43 1174
jksoft 0:5975af170e43 1175
jksoft 0:5975af170e43 1176
jksoft 0:5975af170e43 1177
jksoft 0:5975af170e43 1178 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1179 /* Directory handling - Load/Store start cluster number */
jksoft 0:5975af170e43 1180 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1181
jksoft 0:5975af170e43 1182 static
jksoft 0:5975af170e43 1183 DWORD ld_clust (
jksoft 0:5975af170e43 1184 FATFS *fs, /* Pointer to the fs object */
jksoft 0:5975af170e43 1185 BYTE *dir /* Pointer to the directory entry */
jksoft 0:5975af170e43 1186 )
jksoft 0:5975af170e43 1187 {
jksoft 0:5975af170e43 1188 DWORD cl;
jksoft 0:5975af170e43 1189
jksoft 0:5975af170e43 1190 cl = LD_WORD(dir+DIR_FstClusLO);
jksoft 0:5975af170e43 1191 if (fs->fs_type == FS_FAT32)
jksoft 0:5975af170e43 1192 cl |= (DWORD)LD_WORD(dir+DIR_FstClusHI) << 16;
jksoft 0:5975af170e43 1193
jksoft 0:5975af170e43 1194 return cl;
jksoft 0:5975af170e43 1195 }
jksoft 0:5975af170e43 1196
jksoft 0:5975af170e43 1197
jksoft 0:5975af170e43 1198 #if !_FS_READONLY
jksoft 0:5975af170e43 1199 static
jksoft 0:5975af170e43 1200 void st_clust (
jksoft 0:5975af170e43 1201 BYTE *dir, /* Pointer to the directory entry */
jksoft 0:5975af170e43 1202 DWORD cl /* Value to be set */
jksoft 0:5975af170e43 1203 )
jksoft 0:5975af170e43 1204 {
jksoft 0:5975af170e43 1205 ST_WORD(dir+DIR_FstClusLO, cl);
jksoft 0:5975af170e43 1206 ST_WORD(dir+DIR_FstClusHI, cl >> 16);
jksoft 0:5975af170e43 1207 }
jksoft 0:5975af170e43 1208 #endif
jksoft 0:5975af170e43 1209
jksoft 0:5975af170e43 1210
jksoft 0:5975af170e43 1211
jksoft 0:5975af170e43 1212 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1213 /* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
jksoft 0:5975af170e43 1214 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1215 #if _USE_LFN
jksoft 0:5975af170e43 1216 static
jksoft 0:5975af170e43 1217 const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN chars in the directory entry */
jksoft 0:5975af170e43 1218
jksoft 0:5975af170e43 1219
jksoft 0:5975af170e43 1220 static
jksoft 0:5975af170e43 1221 int cmp_lfn ( /* 1:Matched, 0:Not matched */
jksoft 0:5975af170e43 1222 WCHAR *lfnbuf, /* Pointer to the LFN to be compared */
jksoft 0:5975af170e43 1223 BYTE *dir /* Pointer to the directory entry containing a part of LFN */
jksoft 0:5975af170e43 1224 )
jksoft 0:5975af170e43 1225 {
jksoft 0:5975af170e43 1226 UINT i, s;
jksoft 0:5975af170e43 1227 WCHAR wc, uc;
jksoft 0:5975af170e43 1228
jksoft 0:5975af170e43 1229
jksoft 0:5975af170e43 1230 i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
jksoft 0:5975af170e43 1231 s = 0; wc = 1;
jksoft 0:5975af170e43 1232 do {
jksoft 0:5975af170e43 1233 uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
jksoft 0:5975af170e43 1234 if (wc) { /* Last char has not been processed */
jksoft 0:5975af170e43 1235 wc = ff_wtoupper(uc); /* Convert it to upper case */
jksoft 0:5975af170e43 1236 if (i >= _MAX_LFN || wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
jksoft 0:5975af170e43 1237 return 0; /* Not matched */
jksoft 0:5975af170e43 1238 } else {
jksoft 0:5975af170e43 1239 if (uc != 0xFFFF) return 0; /* Check filler */
jksoft 0:5975af170e43 1240 }
jksoft 0:5975af170e43 1241 } while (++s < 13); /* Repeat until all chars in the entry are checked */
jksoft 0:5975af170e43 1242
jksoft 0:5975af170e43 1243 if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) /* Last segment matched but different length */
jksoft 0:5975af170e43 1244 return 0;
jksoft 0:5975af170e43 1245
jksoft 0:5975af170e43 1246 return 1; /* The part of LFN matched */
jksoft 0:5975af170e43 1247 }
jksoft 0:5975af170e43 1248
jksoft 0:5975af170e43 1249
jksoft 0:5975af170e43 1250
jksoft 0:5975af170e43 1251 static
jksoft 0:5975af170e43 1252 int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
jksoft 0:5975af170e43 1253 WCHAR *lfnbuf, /* Pointer to the Unicode-LFN buffer */
jksoft 0:5975af170e43 1254 BYTE *dir /* Pointer to the directory entry */
jksoft 0:5975af170e43 1255 )
jksoft 0:5975af170e43 1256 {
jksoft 0:5975af170e43 1257 UINT i, s;
jksoft 0:5975af170e43 1258 WCHAR wc, uc;
jksoft 0:5975af170e43 1259
jksoft 0:5975af170e43 1260
jksoft 0:5975af170e43 1261 i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
jksoft 0:5975af170e43 1262
jksoft 0:5975af170e43 1263 s = 0; wc = 1;
jksoft 0:5975af170e43 1264 do {
jksoft 0:5975af170e43 1265 uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
jksoft 0:5975af170e43 1266 if (wc) { /* Last char has not been processed */
jksoft 0:5975af170e43 1267 if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
jksoft 0:5975af170e43 1268 lfnbuf[i++] = wc = uc; /* Store it */
jksoft 0:5975af170e43 1269 } else {
jksoft 0:5975af170e43 1270 if (uc != 0xFFFF) return 0; /* Check filler */
jksoft 0:5975af170e43 1271 }
jksoft 0:5975af170e43 1272 } while (++s < 13); /* Read all character in the entry */
jksoft 0:5975af170e43 1273
jksoft 0:5975af170e43 1274 if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
jksoft 0:5975af170e43 1275 if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
jksoft 0:5975af170e43 1276 lfnbuf[i] = 0;
jksoft 0:5975af170e43 1277 }
jksoft 0:5975af170e43 1278
jksoft 0:5975af170e43 1279 return 1;
jksoft 0:5975af170e43 1280 }
jksoft 0:5975af170e43 1281
jksoft 0:5975af170e43 1282
jksoft 0:5975af170e43 1283 #if !_FS_READONLY
jksoft 0:5975af170e43 1284 static
jksoft 0:5975af170e43 1285 void fit_lfn (
jksoft 0:5975af170e43 1286 const WCHAR *lfnbuf, /* Pointer to the LFN buffer */
jksoft 0:5975af170e43 1287 BYTE *dir, /* Pointer to the directory entry */
jksoft 0:5975af170e43 1288 BYTE ord, /* LFN order (1-20) */
jksoft 0:5975af170e43 1289 BYTE sum /* SFN sum */
jksoft 0:5975af170e43 1290 )
jksoft 0:5975af170e43 1291 {
jksoft 0:5975af170e43 1292 UINT i, s;
jksoft 0:5975af170e43 1293 WCHAR wc;
jksoft 0:5975af170e43 1294
jksoft 0:5975af170e43 1295
jksoft 0:5975af170e43 1296 dir[LDIR_Chksum] = sum; /* Set check sum */
jksoft 0:5975af170e43 1297 dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
jksoft 0:5975af170e43 1298 dir[LDIR_Type] = 0;
jksoft 0:5975af170e43 1299 ST_WORD(dir+LDIR_FstClusLO, 0);
jksoft 0:5975af170e43 1300
jksoft 0:5975af170e43 1301 i = (ord - 1) * 13; /* Get offset in the LFN buffer */
jksoft 0:5975af170e43 1302 s = wc = 0;
jksoft 0:5975af170e43 1303 do {
jksoft 0:5975af170e43 1304 if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */
jksoft 0:5975af170e43 1305 ST_WORD(dir+LfnOfs[s], wc); /* Put it */
jksoft 0:5975af170e43 1306 if (!wc) wc = 0xFFFF; /* Padding chars following last char */
jksoft 0:5975af170e43 1307 } while (++s < 13);
jksoft 0:5975af170e43 1308 if (wc == 0xFFFF || !lfnbuf[i]) ord |= LLE; /* Bottom LFN part is the start of LFN sequence */
jksoft 0:5975af170e43 1309 dir[LDIR_Ord] = ord; /* Set the LFN order */
jksoft 0:5975af170e43 1310 }
jksoft 0:5975af170e43 1311
jksoft 0:5975af170e43 1312 #endif
jksoft 0:5975af170e43 1313 #endif
jksoft 0:5975af170e43 1314
jksoft 0:5975af170e43 1315
jksoft 0:5975af170e43 1316
jksoft 0:5975af170e43 1317 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1318 /* Create numbered name */
jksoft 0:5975af170e43 1319 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1320 #if _USE_LFN
jksoft 0:5975af170e43 1321 void gen_numname (
jksoft 0:5975af170e43 1322 BYTE *dst, /* Pointer to generated SFN */
jksoft 0:5975af170e43 1323 const BYTE *src, /* Pointer to source SFN to be modified */
jksoft 0:5975af170e43 1324 const WCHAR *lfn, /* Pointer to LFN */
jksoft 0:5975af170e43 1325 WORD seq /* Sequence number */
jksoft 0:5975af170e43 1326 )
jksoft 0:5975af170e43 1327 {
jksoft 0:5975af170e43 1328 BYTE ns[8], c;
jksoft 0:5975af170e43 1329 UINT i, j;
jksoft 0:5975af170e43 1330
jksoft 0:5975af170e43 1331
jksoft 0:5975af170e43 1332 mem_cpy(dst, src, 11);
jksoft 0:5975af170e43 1333
jksoft 0:5975af170e43 1334 if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
jksoft 0:5975af170e43 1335 do seq = (seq >> 1) + (seq << 15) + (WORD)*lfn++; while (*lfn);
jksoft 0:5975af170e43 1336 }
jksoft 0:5975af170e43 1337
jksoft 0:5975af170e43 1338 /* itoa (hexdecimal) */
jksoft 0:5975af170e43 1339 i = 7;
jksoft 0:5975af170e43 1340 do {
jksoft 0:5975af170e43 1341 c = (seq % 16) + '0';
jksoft 0:5975af170e43 1342 if (c > '9') c += 7;
jksoft 0:5975af170e43 1343 ns[i--] = c;
jksoft 0:5975af170e43 1344 seq /= 16;
jksoft 0:5975af170e43 1345 } while (seq);
jksoft 0:5975af170e43 1346 ns[i] = '~';
jksoft 0:5975af170e43 1347
jksoft 0:5975af170e43 1348 /* Append the number */
jksoft 0:5975af170e43 1349 for (j = 0; j < i && dst[j] != ' '; j++) {
jksoft 0:5975af170e43 1350 if (IsDBCS1(dst[j])) {
jksoft 0:5975af170e43 1351 if (j == i - 1) break;
jksoft 0:5975af170e43 1352 j++;
jksoft 0:5975af170e43 1353 }
jksoft 0:5975af170e43 1354 }
jksoft 0:5975af170e43 1355 do {
jksoft 0:5975af170e43 1356 dst[j++] = (i < 8) ? ns[i++] : ' ';
jksoft 0:5975af170e43 1357 } while (j < 8);
jksoft 0:5975af170e43 1358 }
jksoft 0:5975af170e43 1359 #endif
jksoft 0:5975af170e43 1360
jksoft 0:5975af170e43 1361
jksoft 0:5975af170e43 1362
jksoft 0:5975af170e43 1363
jksoft 0:5975af170e43 1364 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1365 /* Calculate sum of an SFN */
jksoft 0:5975af170e43 1366 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1367 #if _USE_LFN
jksoft 0:5975af170e43 1368 static
jksoft 0:5975af170e43 1369 BYTE sum_sfn (
jksoft 0:5975af170e43 1370 const BYTE *dir /* Ptr to directory entry */
jksoft 0:5975af170e43 1371 )
jksoft 0:5975af170e43 1372 {
jksoft 0:5975af170e43 1373 BYTE sum = 0;
jksoft 0:5975af170e43 1374 UINT n = 11;
jksoft 0:5975af170e43 1375
jksoft 0:5975af170e43 1376 do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
jksoft 0:5975af170e43 1377 return sum;
jksoft 0:5975af170e43 1378 }
jksoft 0:5975af170e43 1379 #endif
jksoft 0:5975af170e43 1380
jksoft 0:5975af170e43 1381
jksoft 0:5975af170e43 1382
jksoft 0:5975af170e43 1383
jksoft 0:5975af170e43 1384 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1385 /* Directory handling - Find an object in the directory */
jksoft 0:5975af170e43 1386 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1387
jksoft 0:5975af170e43 1388 static
jksoft 0:5975af170e43 1389 FRESULT dir_find (
jksoft 0:5975af170e43 1390 FATFS_DIR *dj /* Pointer to the directory object linked to the file name */
jksoft 0:5975af170e43 1391 )
jksoft 0:5975af170e43 1392 {
jksoft 0:5975af170e43 1393 FRESULT res;
jksoft 0:5975af170e43 1394 BYTE c, *dir;
jksoft 0:5975af170e43 1395 #if _USE_LFN
jksoft 0:5975af170e43 1396 BYTE a, ord, sum;
jksoft 0:5975af170e43 1397 #endif
jksoft 0:5975af170e43 1398
jksoft 0:5975af170e43 1399 res = dir_sdi(dj, 0); /* Rewind directory object */
jksoft 0:5975af170e43 1400 if (res != FR_OK) return res;
jksoft 0:5975af170e43 1401
jksoft 0:5975af170e43 1402 #if _USE_LFN
jksoft 0:5975af170e43 1403 ord = sum = 0xFF;
jksoft 0:5975af170e43 1404 #endif
jksoft 0:5975af170e43 1405 do {
jksoft 0:5975af170e43 1406 res = move_window(dj->fs, dj->sect);
jksoft 0:5975af170e43 1407 if (res != FR_OK) break;
jksoft 0:5975af170e43 1408 dir = dj->dir; /* Ptr to the directory entry of current index */
jksoft 0:5975af170e43 1409 c = dir[DIR_Name];
jksoft 0:5975af170e43 1410 if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
jksoft 0:5975af170e43 1411 #if _USE_LFN /* LFN configuration */
jksoft 0:5975af170e43 1412 a = dir[DIR_Attr] & AM_MASK;
jksoft 0:5975af170e43 1413 if (c == DDE || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
jksoft 0:5975af170e43 1414 ord = 0xFF;
jksoft 0:5975af170e43 1415 } else {
jksoft 0:5975af170e43 1416 if (a == AM_LFN) { /* An LFN entry is found */
jksoft 0:5975af170e43 1417 if (dj->lfn) {
jksoft 0:5975af170e43 1418 if (c & LLE) { /* Is it start of LFN sequence? */
jksoft 0:5975af170e43 1419 sum = dir[LDIR_Chksum];
jksoft 0:5975af170e43 1420 c &= ~LLE; ord = c; /* LFN start order */
jksoft 0:5975af170e43 1421 dj->lfn_idx = dj->index;
jksoft 0:5975af170e43 1422 }
jksoft 0:5975af170e43 1423 /* Check validity of the LFN entry and compare it with given name */
jksoft 0:5975af170e43 1424 ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
jksoft 0:5975af170e43 1425 }
jksoft 0:5975af170e43 1426 } else { /* An SFN entry is found */
jksoft 0:5975af170e43 1427 if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
jksoft 0:5975af170e43 1428 ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */
jksoft 0:5975af170e43 1429 if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */
jksoft 0:5975af170e43 1430 }
jksoft 0:5975af170e43 1431 }
jksoft 0:5975af170e43 1432 #else /* Non LFN configuration */
jksoft 0:5975af170e43 1433 if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
jksoft 0:5975af170e43 1434 break;
jksoft 0:5975af170e43 1435 #endif
jksoft 0:5975af170e43 1436 res = dir_next(dj, 0); /* Next entry */
jksoft 0:5975af170e43 1437 } while (res == FR_OK);
jksoft 0:5975af170e43 1438
jksoft 0:5975af170e43 1439 return res;
jksoft 0:5975af170e43 1440 }
jksoft 0:5975af170e43 1441
jksoft 0:5975af170e43 1442
jksoft 0:5975af170e43 1443
jksoft 0:5975af170e43 1444
jksoft 0:5975af170e43 1445 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1446 /* Read an object from the directory */
jksoft 0:5975af170e43 1447 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1448 #if _FS_MINIMIZE <= 1
jksoft 0:5975af170e43 1449 static
jksoft 0:5975af170e43 1450 FRESULT dir_read (
jksoft 0:5975af170e43 1451 FATFS_DIR *dj /* Pointer to the directory object that pointing the entry to be read */
jksoft 0:5975af170e43 1452 )
jksoft 0:5975af170e43 1453 {
jksoft 0:5975af170e43 1454 FRESULT res;
jksoft 0:5975af170e43 1455 BYTE c, *dir;
jksoft 0:5975af170e43 1456 #if _USE_LFN
jksoft 0:5975af170e43 1457 BYTE a, ord = 0xFF, sum = 0xFF;
jksoft 0:5975af170e43 1458 #endif
jksoft 0:5975af170e43 1459
jksoft 0:5975af170e43 1460 res = FR_NO_FILE;
jksoft 0:5975af170e43 1461 while (dj->sect) {
jksoft 0:5975af170e43 1462 res = move_window(dj->fs, dj->sect);
jksoft 0:5975af170e43 1463 if (res != FR_OK) break;
jksoft 0:5975af170e43 1464 dir = dj->dir; /* Ptr to the directory entry of current index */
jksoft 0:5975af170e43 1465 c = dir[DIR_Name];
jksoft 0:5975af170e43 1466 if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
jksoft 0:5975af170e43 1467 #if _USE_LFN /* LFN configuration */
jksoft 0:5975af170e43 1468 a = dir[DIR_Attr] & AM_MASK;
jksoft 0:5975af170e43 1469 if (c == DDE || (!_FS_RPATH && c == '.') || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
jksoft 0:5975af170e43 1470 ord = 0xFF;
jksoft 0:5975af170e43 1471 } else {
jksoft 0:5975af170e43 1472 if (a == AM_LFN) { /* An LFN entry is found */
jksoft 0:5975af170e43 1473 if (c & LLE) { /* Is it start of LFN sequence? */
jksoft 0:5975af170e43 1474 sum = dir[LDIR_Chksum];
jksoft 0:5975af170e43 1475 c &= ~LLE; ord = c;
jksoft 0:5975af170e43 1476 dj->lfn_idx = dj->index;
jksoft 0:5975af170e43 1477 }
jksoft 0:5975af170e43 1478 /* Check LFN validity and capture it */
jksoft 0:5975af170e43 1479 ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
jksoft 0:5975af170e43 1480 } else { /* An SFN entry is found */
jksoft 0:5975af170e43 1481 if (ord || sum != sum_sfn(dir)) /* Is there a valid LFN? */
jksoft 0:5975af170e43 1482 dj->lfn_idx = 0xFFFF; /* It has no LFN. */
jksoft 0:5975af170e43 1483 break;
jksoft 0:5975af170e43 1484 }
jksoft 0:5975af170e43 1485 }
jksoft 0:5975af170e43 1486 #else /* Non LFN configuration */
jksoft 0:5975af170e43 1487 if (c != DDE && (_FS_RPATH || c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
jksoft 0:5975af170e43 1488 break;
jksoft 0:5975af170e43 1489 #endif
jksoft 0:5975af170e43 1490 res = dir_next(dj, 0); /* Next entry */
jksoft 0:5975af170e43 1491 if (res != FR_OK) break;
jksoft 0:5975af170e43 1492 }
jksoft 0:5975af170e43 1493
jksoft 0:5975af170e43 1494 if (res != FR_OK) dj->sect = 0;
jksoft 0:5975af170e43 1495
jksoft 0:5975af170e43 1496 return res;
jksoft 0:5975af170e43 1497 }
jksoft 0:5975af170e43 1498 #endif
jksoft 0:5975af170e43 1499
jksoft 0:5975af170e43 1500
jksoft 0:5975af170e43 1501
jksoft 0:5975af170e43 1502 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1503 /* Register an object to the directory */
jksoft 0:5975af170e43 1504 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1505 #if !_FS_READONLY
jksoft 0:5975af170e43 1506 static
jksoft 0:5975af170e43 1507 FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
jksoft 0:5975af170e43 1508 FATFS_DIR *dj /* Target directory with object name to be created */
jksoft 0:5975af170e43 1509 )
jksoft 0:5975af170e43 1510 {
jksoft 0:5975af170e43 1511 FRESULT res;
jksoft 0:5975af170e43 1512 BYTE c, *dir;
jksoft 0:5975af170e43 1513 #if _USE_LFN /* LFN configuration */
jksoft 0:5975af170e43 1514 WORD n, ne, is;
jksoft 0:5975af170e43 1515 BYTE sn[12], *fn, sum;
jksoft 0:5975af170e43 1516 WCHAR *lfn;
jksoft 0:5975af170e43 1517
jksoft 0:5975af170e43 1518
jksoft 0:5975af170e43 1519 fn = dj->fn; lfn = dj->lfn;
jksoft 0:5975af170e43 1520 mem_cpy(sn, fn, 12);
jksoft 0:5975af170e43 1521
jksoft 0:5975af170e43 1522 if (_FS_RPATH && (sn[NS] & NS_DOT)) /* Cannot create dot entry */
jksoft 0:5975af170e43 1523 return FR_INVALID_NAME;
jksoft 0:5975af170e43 1524
jksoft 0:5975af170e43 1525 if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
jksoft 0:5975af170e43 1526 fn[NS] = 0; dj->lfn = 0; /* Find only SFN */
jksoft 0:5975af170e43 1527 for (n = 1; n < 100; n++) {
jksoft 0:5975af170e43 1528 gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
jksoft 0:5975af170e43 1529 res = dir_find(dj); /* Check if the name collides with existing SFN */
jksoft 0:5975af170e43 1530 if (res != FR_OK) break;
jksoft 0:5975af170e43 1531 }
jksoft 0:5975af170e43 1532 if (n == 100) return FR_DENIED; /* Abort if too many collisions */
jksoft 0:5975af170e43 1533 if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
jksoft 0:5975af170e43 1534 fn[NS] = sn[NS]; dj->lfn = lfn;
jksoft 0:5975af170e43 1535 }
jksoft 0:5975af170e43 1536
jksoft 0:5975af170e43 1537 if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve an SFN + LFN entries. */
jksoft 0:5975af170e43 1538 for (ne = 0; lfn[ne]; ne++) ;
jksoft 0:5975af170e43 1539 ne = (ne + 25) / 13;
jksoft 0:5975af170e43 1540 } else { /* Otherwise reserve only an SFN entry. */
jksoft 0:5975af170e43 1541 ne = 1;
jksoft 0:5975af170e43 1542 }
jksoft 0:5975af170e43 1543
jksoft 0:5975af170e43 1544 /* Reserve contiguous entries */
jksoft 0:5975af170e43 1545 res = dir_sdi(dj, 0);
jksoft 0:5975af170e43 1546 if (res != FR_OK) return res;
jksoft 0:5975af170e43 1547 n = is = 0;
jksoft 0:5975af170e43 1548 do {
jksoft 0:5975af170e43 1549 res = move_window(dj->fs, dj->sect);
jksoft 0:5975af170e43 1550 if (res != FR_OK) break;
jksoft 0:5975af170e43 1551 c = *dj->dir; /* Check the entry status */
jksoft 0:5975af170e43 1552 if (c == DDE || c == 0) { /* Is it a blank entry? */
jksoft 0:5975af170e43 1553 if (n == 0) is = dj->index; /* First index of the contiguous entry */
jksoft 0:5975af170e43 1554 if (++n == ne) break; /* A contiguous entry that required count is found */
jksoft 0:5975af170e43 1555 } else {
jksoft 0:5975af170e43 1556 n = 0; /* Not a blank entry. Restart to search */
jksoft 0:5975af170e43 1557 }
jksoft 0:5975af170e43 1558 res = dir_next(dj, 1); /* Next entry with table stretch */
jksoft 0:5975af170e43 1559 } while (res == FR_OK);
jksoft 0:5975af170e43 1560
jksoft 0:5975af170e43 1561 if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */
jksoft 0:5975af170e43 1562 res = dir_sdi(dj, is);
jksoft 0:5975af170e43 1563 if (res == FR_OK) {
jksoft 0:5975af170e43 1564 sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */
jksoft 0:5975af170e43 1565 ne--;
jksoft 0:5975af170e43 1566 do { /* Store LFN entries in bottom first */
jksoft 0:5975af170e43 1567 res = move_window(dj->fs, dj->sect);
jksoft 0:5975af170e43 1568 if (res != FR_OK) break;
jksoft 0:5975af170e43 1569 fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
jksoft 0:5975af170e43 1570 dj->fs->wflag = 1;
jksoft 0:5975af170e43 1571 res = dir_next(dj, 0); /* Next entry */
jksoft 0:5975af170e43 1572 } while (res == FR_OK && --ne);
jksoft 0:5975af170e43 1573 }
jksoft 0:5975af170e43 1574 }
jksoft 0:5975af170e43 1575
jksoft 0:5975af170e43 1576 #else /* Non LFN configuration */
jksoft 0:5975af170e43 1577 res = dir_sdi(dj, 0);
jksoft 0:5975af170e43 1578 if (res == FR_OK) {
jksoft 0:5975af170e43 1579 do { /* Find a blank entry for the SFN */
jksoft 0:5975af170e43 1580 res = move_window(dj->fs, dj->sect);
jksoft 0:5975af170e43 1581 if (res != FR_OK) break;
jksoft 0:5975af170e43 1582 c = *dj->dir;
jksoft 0:5975af170e43 1583 if (c == DDE || c == 0) break; /* Is it a blank entry? */
jksoft 0:5975af170e43 1584 res = dir_next(dj, 1); /* Next entry with table stretch */
jksoft 0:5975af170e43 1585 } while (res == FR_OK);
jksoft 0:5975af170e43 1586 }
jksoft 0:5975af170e43 1587 #endif
jksoft 0:5975af170e43 1588
jksoft 0:5975af170e43 1589 if (res == FR_OK) { /* Initialize the SFN entry */
jksoft 0:5975af170e43 1590 res = move_window(dj->fs, dj->sect);
jksoft 0:5975af170e43 1591 if (res == FR_OK) {
jksoft 0:5975af170e43 1592 dir = dj->dir;
jksoft 0:5975af170e43 1593 mem_set(dir, 0, SZ_DIR); /* Clean the entry */
jksoft 0:5975af170e43 1594 mem_cpy(dir, dj->fn, 11); /* Put SFN */
jksoft 0:5975af170e43 1595 #if _USE_LFN
jksoft 0:5975af170e43 1596 dir[DIR_NTres] = *(dj->fn+NS) & (NS_BODY | NS_EXT); /* Put NT flag */
jksoft 0:5975af170e43 1597 #endif
jksoft 0:5975af170e43 1598 dj->fs->wflag = 1;
jksoft 0:5975af170e43 1599 }
jksoft 0:5975af170e43 1600 }
jksoft 0:5975af170e43 1601
jksoft 0:5975af170e43 1602 return res;
jksoft 0:5975af170e43 1603 }
jksoft 0:5975af170e43 1604 #endif /* !_FS_READONLY */
jksoft 0:5975af170e43 1605
jksoft 0:5975af170e43 1606
jksoft 0:5975af170e43 1607
jksoft 0:5975af170e43 1608
jksoft 0:5975af170e43 1609 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1610 /* Remove an object from the directory */
jksoft 0:5975af170e43 1611 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1612 #if !_FS_READONLY && !_FS_MINIMIZE
jksoft 0:5975af170e43 1613 static
jksoft 0:5975af170e43 1614 FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
jksoft 0:5975af170e43 1615 FATFS_DIR *dj /* Directory object pointing the entry to be removed */
jksoft 0:5975af170e43 1616 )
jksoft 0:5975af170e43 1617 {
jksoft 0:5975af170e43 1618 FRESULT res;
jksoft 0:5975af170e43 1619 #if _USE_LFN /* LFN configuration */
jksoft 0:5975af170e43 1620 WORD i;
jksoft 0:5975af170e43 1621
jksoft 0:5975af170e43 1622 i = dj->index; /* SFN index */
jksoft 0:5975af170e43 1623 res = dir_sdi(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */
jksoft 0:5975af170e43 1624 if (res == FR_OK) {
jksoft 0:5975af170e43 1625 do {
jksoft 0:5975af170e43 1626 res = move_window(dj->fs, dj->sect);
jksoft 0:5975af170e43 1627 if (res != FR_OK) break;
jksoft 0:5975af170e43 1628 *dj->dir = DDE; /* Mark the entry "deleted" */
jksoft 0:5975af170e43 1629 dj->fs->wflag = 1;
jksoft 0:5975af170e43 1630 if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
jksoft 0:5975af170e43 1631 res = dir_next(dj, 0); /* Next entry */
jksoft 0:5975af170e43 1632 } while (res == FR_OK);
jksoft 0:5975af170e43 1633 if (res == FR_NO_FILE) res = FR_INT_ERR;
jksoft 0:5975af170e43 1634 }
jksoft 0:5975af170e43 1635
jksoft 0:5975af170e43 1636 #else /* Non LFN configuration */
jksoft 0:5975af170e43 1637 res = dir_sdi(dj, dj->index);
jksoft 0:5975af170e43 1638 if (res == FR_OK) {
jksoft 0:5975af170e43 1639 res = move_window(dj->fs, dj->sect);
jksoft 0:5975af170e43 1640 if (res == FR_OK) {
jksoft 0:5975af170e43 1641 *dj->dir = DDE; /* Mark the entry "deleted" */
jksoft 0:5975af170e43 1642 dj->fs->wflag = 1;
jksoft 0:5975af170e43 1643 }
jksoft 0:5975af170e43 1644 }
jksoft 0:5975af170e43 1645 #endif
jksoft 0:5975af170e43 1646
jksoft 0:5975af170e43 1647 return res;
jksoft 0:5975af170e43 1648 }
jksoft 0:5975af170e43 1649 #endif /* !_FS_READONLY */
jksoft 0:5975af170e43 1650
jksoft 0:5975af170e43 1651
jksoft 0:5975af170e43 1652
jksoft 0:5975af170e43 1653
jksoft 0:5975af170e43 1654 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1655 /* Pick a segment and create the object name in directory form */
jksoft 0:5975af170e43 1656 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1657
jksoft 0:5975af170e43 1658 static
jksoft 0:5975af170e43 1659 FRESULT create_name (
jksoft 0:5975af170e43 1660 FATFS_DIR *dj, /* Pointer to the directory object */
jksoft 0:5975af170e43 1661 const TCHAR **path /* Pointer to pointer to the segment in the path string */
jksoft 0:5975af170e43 1662 )
jksoft 0:5975af170e43 1663 {
jksoft 0:5975af170e43 1664 #ifdef _EXCVT
jksoft 0:5975af170e43 1665 static const BYTE excvt[] = _EXCVT; /* Upper conversion table for extended chars */
jksoft 0:5975af170e43 1666 #endif
jksoft 0:5975af170e43 1667
jksoft 0:5975af170e43 1668 #if _USE_LFN /* LFN configuration */
jksoft 0:5975af170e43 1669 BYTE b, cf;
jksoft 0:5975af170e43 1670 WCHAR w, *lfn;
jksoft 0:5975af170e43 1671 UINT i, ni, si, di;
jksoft 0:5975af170e43 1672 const TCHAR *p;
jksoft 0:5975af170e43 1673
jksoft 0:5975af170e43 1674 /* Create LFN in Unicode */
jksoft 0:5975af170e43 1675 for (p = *path; *p == '/' || *p == '\\'; p++) ; /* Strip duplicated separator */
jksoft 0:5975af170e43 1676 lfn = dj->lfn;
jksoft 0:5975af170e43 1677 si = di = 0;
jksoft 0:5975af170e43 1678 for (;;) {
jksoft 0:5975af170e43 1679 w = p[si++]; /* Get a character */
jksoft 0:5975af170e43 1680 if (w < ' ' || w == '/' || w == '\\') break; /* Break on end of segment */
jksoft 0:5975af170e43 1681 if (di >= _MAX_LFN) /* Reject too long name */
jksoft 0:5975af170e43 1682 return FR_INVALID_NAME;
jksoft 0:5975af170e43 1683 #if !_LFN_UNICODE
jksoft 0:5975af170e43 1684 w &= 0xFF;
jksoft 0:5975af170e43 1685 if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
jksoft 0:5975af170e43 1686 b = (BYTE)p[si++]; /* Get 2nd byte */
jksoft 0:5975af170e43 1687 if (!IsDBCS2(b))
jksoft 0:5975af170e43 1688 return FR_INVALID_NAME; /* Reject invalid sequence */
jksoft 0:5975af170e43 1689 w = (w << 8) + b; /* Create a DBC */
jksoft 0:5975af170e43 1690 }
jksoft 0:5975af170e43 1691 w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
jksoft 0:5975af170e43 1692 if (!w) return FR_INVALID_NAME; /* Reject invalid code */
jksoft 0:5975af170e43 1693 #endif
jksoft 0:5975af170e43 1694 if (w < 0x80 && chk_chr("\"*:<>\?|\x7F", w)) /* Reject illegal chars for LFN */
jksoft 0:5975af170e43 1695 return FR_INVALID_NAME;
jksoft 0:5975af170e43 1696 lfn[di++] = w; /* Store the Unicode char */
jksoft 0:5975af170e43 1697 }
jksoft 0:5975af170e43 1698 *path = &p[si]; /* Return pointer to the next segment */
jksoft 0:5975af170e43 1699 cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
jksoft 0:5975af170e43 1700 #if _FS_RPATH
jksoft 0:5975af170e43 1701 if ((di == 1 && lfn[di-1] == '.') || /* Is this a dot entry? */
jksoft 0:5975af170e43 1702 (di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
jksoft 0:5975af170e43 1703 lfn[di] = 0;
jksoft 0:5975af170e43 1704 for (i = 0; i < 11; i++)
jksoft 0:5975af170e43 1705 dj->fn[i] = (i < di) ? '.' : ' ';
jksoft 0:5975af170e43 1706 dj->fn[i] = cf | NS_DOT; /* This is a dot entry */
jksoft 0:5975af170e43 1707 return FR_OK;
jksoft 0:5975af170e43 1708 }
jksoft 0:5975af170e43 1709 #endif
jksoft 0:5975af170e43 1710 while (di) { /* Strip trailing spaces and dots */
jksoft 0:5975af170e43 1711 w = lfn[di-1];
jksoft 0:5975af170e43 1712 if (w != ' ' && w != '.') break;
jksoft 0:5975af170e43 1713 di--;
jksoft 0:5975af170e43 1714 }
jksoft 0:5975af170e43 1715 if (!di) return FR_INVALID_NAME; /* Reject nul string */
jksoft 0:5975af170e43 1716
jksoft 0:5975af170e43 1717 lfn[di] = 0; /* LFN is created */
jksoft 0:5975af170e43 1718
jksoft 0:5975af170e43 1719 /* Create SFN in directory form */
jksoft 0:5975af170e43 1720 mem_set(dj->fn, ' ', 11);
jksoft 0:5975af170e43 1721 for (si = 0; lfn[si] == ' ' || lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
jksoft 0:5975af170e43 1722 if (si) cf |= NS_LOSS | NS_LFN;
jksoft 0:5975af170e43 1723 while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
jksoft 0:5975af170e43 1724
jksoft 0:5975af170e43 1725 b = i = 0; ni = 8;
jksoft 0:5975af170e43 1726 for (;;) {
jksoft 0:5975af170e43 1727 w = lfn[si++]; /* Get an LFN char */
jksoft 0:5975af170e43 1728 if (!w) break; /* Break on end of the LFN */
jksoft 0:5975af170e43 1729 if (w == ' ' || (w == '.' && si != di)) { /* Remove spaces and dots */
jksoft 0:5975af170e43 1730 cf |= NS_LOSS | NS_LFN; continue;
jksoft 0:5975af170e43 1731 }
jksoft 0:5975af170e43 1732
jksoft 0:5975af170e43 1733 if (i >= ni || si == di) { /* Extension or end of SFN */
jksoft 0:5975af170e43 1734 if (ni == 11) { /* Long extension */
jksoft 0:5975af170e43 1735 cf |= NS_LOSS | NS_LFN; break;
jksoft 0:5975af170e43 1736 }
jksoft 0:5975af170e43 1737 if (si != di) cf |= NS_LOSS | NS_LFN; /* Out of 8.3 format */
jksoft 0:5975af170e43 1738 if (si > di) break; /* No extension */
jksoft 0:5975af170e43 1739 si = di; i = 8; ni = 11; /* Enter extension section */
jksoft 0:5975af170e43 1740 b <<= 2; continue;
jksoft 0:5975af170e43 1741 }
jksoft 0:5975af170e43 1742
jksoft 0:5975af170e43 1743 if (w >= 0x80) { /* Non ASCII char */
jksoft 0:5975af170e43 1744 #ifdef _EXCVT
jksoft 0:5975af170e43 1745 w = ff_convert(w, 0); /* Unicode -> OEM code */
jksoft 0:5975af170e43 1746 if (w) w = excvt[w - 0x80]; /* Convert extended char to upper (SBCS) */
jksoft 0:5975af170e43 1747 #else
jksoft 0:5975af170e43 1748 w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
jksoft 0:5975af170e43 1749 #endif
jksoft 0:5975af170e43 1750 cf |= NS_LFN; /* Force create LFN entry */
jksoft 0:5975af170e43 1751 }
jksoft 0:5975af170e43 1752
jksoft 0:5975af170e43 1753 if (_DF1S && w >= 0x100) { /* Double byte char (always false on SBCS cfg) */
jksoft 0:5975af170e43 1754 if (i >= ni - 1) {
jksoft 0:5975af170e43 1755 cf |= NS_LOSS | NS_LFN; i = ni; continue;
jksoft 0:5975af170e43 1756 }
jksoft 0:5975af170e43 1757 dj->fn[i++] = (BYTE)(w >> 8);
jksoft 0:5975af170e43 1758 } else { /* Single byte char */
jksoft 0:5975af170e43 1759 if (!w || chk_chr("+,;=[]", w)) { /* Replace illegal chars for SFN */
jksoft 0:5975af170e43 1760 w = '_'; cf |= NS_LOSS | NS_LFN;/* Lossy conversion */
jksoft 0:5975af170e43 1761 } else {
jksoft 0:5975af170e43 1762 if (IsUpper(w)) { /* ASCII large capital */
jksoft 0:5975af170e43 1763 b |= 2;
jksoft 0:5975af170e43 1764 } else {
jksoft 0:5975af170e43 1765 if (IsLower(w)) { /* ASCII small capital */
jksoft 0:5975af170e43 1766 b |= 1; w -= 0x20;
jksoft 0:5975af170e43 1767 }
jksoft 0:5975af170e43 1768 }
jksoft 0:5975af170e43 1769 }
jksoft 0:5975af170e43 1770 }
jksoft 0:5975af170e43 1771 dj->fn[i++] = (BYTE)w;
jksoft 0:5975af170e43 1772 }
jksoft 0:5975af170e43 1773
jksoft 0:5975af170e43 1774 if (dj->fn[0] == DDE) dj->fn[0] = NDDE; /* If the first char collides with deleted mark, replace it with 0x05 */
jksoft 0:5975af170e43 1775
jksoft 0:5975af170e43 1776 if (ni == 8) b <<= 2;
jksoft 0:5975af170e43 1777 if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
jksoft 0:5975af170e43 1778 cf |= NS_LFN;
jksoft 0:5975af170e43 1779 if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */
jksoft 0:5975af170e43 1780 if ((b & 0x03) == 0x01) cf |= NS_EXT; /* NT flag (Extension has only small capital) */
jksoft 0:5975af170e43 1781 if ((b & 0x0C) == 0x04) cf |= NS_BODY; /* NT flag (Filename has only small capital) */
jksoft 0:5975af170e43 1782 }
jksoft 0:5975af170e43 1783
jksoft 0:5975af170e43 1784 dj->fn[NS] = cf; /* SFN is created */
jksoft 0:5975af170e43 1785
jksoft 0:5975af170e43 1786 return FR_OK;
jksoft 0:5975af170e43 1787
jksoft 0:5975af170e43 1788
jksoft 0:5975af170e43 1789 #else /* Non-LFN configuration */
jksoft 0:5975af170e43 1790 BYTE b, c, d, *sfn;
jksoft 0:5975af170e43 1791 UINT ni, si, i;
jksoft 0:5975af170e43 1792 const char *p;
jksoft 0:5975af170e43 1793
jksoft 0:5975af170e43 1794 /* Create file name in directory form */
jksoft 0:5975af170e43 1795 for (p = *path; *p == '/' || *p == '\\'; p++) ; /* Strip duplicated separator */
jksoft 0:5975af170e43 1796 sfn = dj->fn;
jksoft 0:5975af170e43 1797 mem_set(sfn, ' ', 11);
jksoft 0:5975af170e43 1798 si = i = b = 0; ni = 8;
jksoft 0:5975af170e43 1799 #if _FS_RPATH
jksoft 0:5975af170e43 1800 if (p[si] == '.') { /* Is this a dot entry? */
jksoft 0:5975af170e43 1801 for (;;) {
jksoft 0:5975af170e43 1802 c = (BYTE)p[si++];
jksoft 0:5975af170e43 1803 if (c != '.' || si >= 3) break;
jksoft 0:5975af170e43 1804 sfn[i++] = c;
jksoft 0:5975af170e43 1805 }
jksoft 0:5975af170e43 1806 if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
jksoft 0:5975af170e43 1807 *path = &p[si]; /* Return pointer to the next segment */
jksoft 0:5975af170e43 1808 sfn[NS] = (c <= ' ') ? NS_LAST | NS_DOT : NS_DOT; /* Set last segment flag if end of path */
jksoft 0:5975af170e43 1809 return FR_OK;
jksoft 0:5975af170e43 1810 }
jksoft 0:5975af170e43 1811 #endif
jksoft 0:5975af170e43 1812 for (;;) {
jksoft 0:5975af170e43 1813 c = (BYTE)p[si++];
jksoft 0:5975af170e43 1814 if (c <= ' ' || c == '/' || c == '\\') break; /* Break on end of segment */
jksoft 0:5975af170e43 1815 if (c == '.' || i >= ni) {
jksoft 0:5975af170e43 1816 if (ni != 8 || c != '.') return FR_INVALID_NAME;
jksoft 0:5975af170e43 1817 i = 8; ni = 11;
jksoft 0:5975af170e43 1818 b <<= 2; continue;
jksoft 0:5975af170e43 1819 }
jksoft 0:5975af170e43 1820 if (c >= 0x80) { /* Extended char? */
jksoft 0:5975af170e43 1821 b |= 3; /* Eliminate NT flag */
jksoft 0:5975af170e43 1822 #ifdef _EXCVT
jksoft 0:5975af170e43 1823 c = excvt[c - 0x80]; /* Upper conversion (SBCS) */
jksoft 0:5975af170e43 1824 #else
jksoft 0:5975af170e43 1825 #if !_DF1S /* ASCII only cfg */
jksoft 0:5975af170e43 1826 return FR_INVALID_NAME;
jksoft 0:5975af170e43 1827 #endif
jksoft 0:5975af170e43 1828 #endif
jksoft 0:5975af170e43 1829 }
jksoft 0:5975af170e43 1830 if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
jksoft 0:5975af170e43 1831 d = (BYTE)p[si++]; /* Get 2nd byte */
jksoft 0:5975af170e43 1832 if (!IsDBCS2(d) || i >= ni - 1) /* Reject invalid DBC */
jksoft 0:5975af170e43 1833 return FR_INVALID_NAME;
jksoft 0:5975af170e43 1834 sfn[i++] = c;
jksoft 0:5975af170e43 1835 sfn[i++] = d;
jksoft 0:5975af170e43 1836 } else { /* Single byte code */
jksoft 0:5975af170e43 1837 if (chk_chr("\"*+,:;<=>\?[]|\x7F", c)) /* Reject illegal chrs for SFN */
jksoft 0:5975af170e43 1838 return FR_INVALID_NAME;
jksoft 0:5975af170e43 1839 if (IsUpper(c)) { /* ASCII large capital? */
jksoft 0:5975af170e43 1840 b |= 2;
jksoft 0:5975af170e43 1841 } else {
jksoft 0:5975af170e43 1842 if (IsLower(c)) { /* ASCII small capital? */
jksoft 0:5975af170e43 1843 b |= 1; c -= 0x20;
jksoft 0:5975af170e43 1844 }
jksoft 0:5975af170e43 1845 }
jksoft 0:5975af170e43 1846 sfn[i++] = c;
jksoft 0:5975af170e43 1847 }
jksoft 0:5975af170e43 1848 }
jksoft 0:5975af170e43 1849 *path = &p[si]; /* Return pointer to the next segment */
jksoft 0:5975af170e43 1850 c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
jksoft 0:5975af170e43 1851
jksoft 0:5975af170e43 1852 if (!i) return FR_INVALID_NAME; /* Reject nul string */
jksoft 0:5975af170e43 1853 if (sfn[0] == DDE) sfn[0] = NDDE; /* When first char collides with DDE, replace it with 0x05 */
jksoft 0:5975af170e43 1854
jksoft 0:5975af170e43 1855 if (ni == 8) b <<= 2;
jksoft 0:5975af170e43 1856 if ((b & 0x03) == 0x01) c |= NS_EXT; /* NT flag (Name extension has only small capital) */
jksoft 0:5975af170e43 1857 if ((b & 0x0C) == 0x04) c |= NS_BODY; /* NT flag (Name body has only small capital) */
jksoft 0:5975af170e43 1858
jksoft 0:5975af170e43 1859 sfn[NS] = c; /* Store NT flag, File name is created */
jksoft 0:5975af170e43 1860
jksoft 0:5975af170e43 1861 return FR_OK;
jksoft 0:5975af170e43 1862 #endif
jksoft 0:5975af170e43 1863 }
jksoft 0:5975af170e43 1864
jksoft 0:5975af170e43 1865
jksoft 0:5975af170e43 1866
jksoft 0:5975af170e43 1867
jksoft 0:5975af170e43 1868 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1869 /* Get file information from directory entry */
jksoft 0:5975af170e43 1870 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1871 #if _FS_MINIMIZE <= 1
jksoft 0:5975af170e43 1872 static
jksoft 0:5975af170e43 1873 void get_fileinfo ( /* No return code */
jksoft 0:5975af170e43 1874 FATFS_DIR *dj, /* Pointer to the directory object */
jksoft 0:5975af170e43 1875 FILINFO *fno /* Pointer to the file information to be filled */
jksoft 0:5975af170e43 1876 )
jksoft 0:5975af170e43 1877 {
jksoft 0:5975af170e43 1878 UINT i;
jksoft 0:5975af170e43 1879 BYTE nt, *dir;
jksoft 0:5975af170e43 1880 TCHAR *p, c;
jksoft 0:5975af170e43 1881
jksoft 0:5975af170e43 1882
jksoft 0:5975af170e43 1883 p = fno->fname;
jksoft 0:5975af170e43 1884 if (dj->sect) {
jksoft 0:5975af170e43 1885 dir = dj->dir;
jksoft 0:5975af170e43 1886 nt = dir[DIR_NTres]; /* NT flag */
jksoft 0:5975af170e43 1887 for (i = 0; i < 8; i++) { /* Copy name body */
jksoft 0:5975af170e43 1888 c = dir[i];
jksoft 0:5975af170e43 1889 if (c == ' ') break;
jksoft 0:5975af170e43 1890 if (c == NDDE) c = (TCHAR)DDE;
jksoft 0:5975af170e43 1891 if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
jksoft 0:5975af170e43 1892 #if _LFN_UNICODE
jksoft 0:5975af170e43 1893 if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i+1]))
jksoft 0:5975af170e43 1894 c = (c << 8) | dir[++i];
jksoft 0:5975af170e43 1895 c = ff_convert(c, 1);
jksoft 0:5975af170e43 1896 if (!c) c = '?';
jksoft 0:5975af170e43 1897 #endif
jksoft 0:5975af170e43 1898 *p++ = c;
jksoft 0:5975af170e43 1899 }
jksoft 0:5975af170e43 1900 if (dir[8] != ' ') { /* Copy name extension */
jksoft 0:5975af170e43 1901 *p++ = '.';
jksoft 0:5975af170e43 1902 for (i = 8; i < 11; i++) {
jksoft 0:5975af170e43 1903 c = dir[i];
jksoft 0:5975af170e43 1904 if (c == ' ') break;
jksoft 0:5975af170e43 1905 if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
jksoft 0:5975af170e43 1906 #if _LFN_UNICODE
jksoft 0:5975af170e43 1907 if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i+1]))
jksoft 0:5975af170e43 1908 c = (c << 8) | dir[++i];
jksoft 0:5975af170e43 1909 c = ff_convert(c, 1);
jksoft 0:5975af170e43 1910 if (!c) c = '?';
jksoft 0:5975af170e43 1911 #endif
jksoft 0:5975af170e43 1912 *p++ = c;
jksoft 0:5975af170e43 1913 }
jksoft 0:5975af170e43 1914 }
jksoft 0:5975af170e43 1915 fno->fattrib = dir[DIR_Attr]; /* Attribute */
jksoft 0:5975af170e43 1916 fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
jksoft 0:5975af170e43 1917 fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
jksoft 0:5975af170e43 1918 fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
jksoft 0:5975af170e43 1919 }
jksoft 0:5975af170e43 1920 *p = 0; /* Terminate SFN str by a \0 */
jksoft 0:5975af170e43 1921
jksoft 0:5975af170e43 1922 #if _USE_LFN
jksoft 0:5975af170e43 1923 if (fno->lfname && fno->lfsize) {
jksoft 0:5975af170e43 1924 TCHAR *tp = fno->lfname;
jksoft 0:5975af170e43 1925 WCHAR w, *lfn;
jksoft 0:5975af170e43 1926
jksoft 0:5975af170e43 1927 i = 0;
jksoft 0:5975af170e43 1928 if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
jksoft 0:5975af170e43 1929 lfn = dj->lfn;
jksoft 0:5975af170e43 1930 while ((w = *lfn++) != 0) { /* Get an LFN char */
jksoft 0:5975af170e43 1931 #if !_LFN_UNICODE
jksoft 0:5975af170e43 1932 w = ff_convert(w, 0); /* Unicode -> OEM conversion */
jksoft 0:5975af170e43 1933 if (!w) { i = 0; break; } /* Could not convert, no LFN */
jksoft 0:5975af170e43 1934 if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
jksoft 0:5975af170e43 1935 tp[i++] = (TCHAR)(w >> 8);
jksoft 0:5975af170e43 1936 #endif
jksoft 0:5975af170e43 1937 if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overflow, no LFN */
jksoft 0:5975af170e43 1938 tp[i++] = (TCHAR)w;
jksoft 0:5975af170e43 1939 }
jksoft 0:5975af170e43 1940 }
jksoft 0:5975af170e43 1941 tp[i] = 0; /* Terminate the LFN str by a \0 */
jksoft 0:5975af170e43 1942 }
jksoft 0:5975af170e43 1943 #endif
jksoft 0:5975af170e43 1944 }
jksoft 0:5975af170e43 1945 #endif /* _FS_MINIMIZE <= 1 */
jksoft 0:5975af170e43 1946
jksoft 0:5975af170e43 1947
jksoft 0:5975af170e43 1948
jksoft 0:5975af170e43 1949
jksoft 0:5975af170e43 1950 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1951 /* Follow a file path */
jksoft 0:5975af170e43 1952 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 1953
jksoft 0:5975af170e43 1954 static
jksoft 0:5975af170e43 1955 FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
jksoft 0:5975af170e43 1956 FATFS_DIR *dj, /* Directory object to return last directory and found object */
jksoft 0:5975af170e43 1957 const TCHAR *path /* Full-path string to find a file or directory */
jksoft 0:5975af170e43 1958 )
jksoft 0:5975af170e43 1959 {
jksoft 0:5975af170e43 1960 FRESULT res;
jksoft 0:5975af170e43 1961 BYTE *dir, ns;
jksoft 0:5975af170e43 1962
jksoft 0:5975af170e43 1963
jksoft 0:5975af170e43 1964 #if _FS_RPATH
jksoft 0:5975af170e43 1965 if (*path == '/' || *path == '\\') { /* There is a heading separator */
jksoft 0:5975af170e43 1966 path++; dj->sclust = 0; /* Strip it and start from the root dir */
jksoft 0:5975af170e43 1967 } else { /* No heading separator */
jksoft 0:5975af170e43 1968 dj->sclust = dj->fs->cdir; /* Start from the current dir */
jksoft 0:5975af170e43 1969 }
jksoft 0:5975af170e43 1970 #else
jksoft 0:5975af170e43 1971 if (*path == '/' || *path == '\\') /* Strip heading separator if exist */
jksoft 0:5975af170e43 1972 path++;
jksoft 0:5975af170e43 1973 dj->sclust = 0; /* Start from the root dir */
jksoft 0:5975af170e43 1974 #endif
jksoft 0:5975af170e43 1975
jksoft 0:5975af170e43 1976 if ((UINT)*path < ' ') { /* Nul path means the start directory itself */
jksoft 0:5975af170e43 1977 res = dir_sdi(dj, 0);
jksoft 0:5975af170e43 1978 dj->dir = 0;
jksoft 0:5975af170e43 1979 } else { /* Follow path */
jksoft 0:5975af170e43 1980 for (;;) {
jksoft 0:5975af170e43 1981 res = create_name(dj, &path); /* Get a segment */
jksoft 0:5975af170e43 1982 if (res != FR_OK) break;
jksoft 0:5975af170e43 1983 res = dir_find(dj); /* Find it */
jksoft 0:5975af170e43 1984 ns = *(dj->fn+NS);
jksoft 0:5975af170e43 1985 if (res != FR_OK) { /* Failed to find the object */
jksoft 0:5975af170e43 1986 if (res != FR_NO_FILE) break; /* Abort if any hard error occurred */
jksoft 0:5975af170e43 1987 /* Object not found */
jksoft 0:5975af170e43 1988 if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exit */
jksoft 0:5975af170e43 1989 dj->sclust = 0; dj->dir = 0; /* It is the root dir */
jksoft 0:5975af170e43 1990 res = FR_OK;
jksoft 0:5975af170e43 1991 if (!(ns & NS_LAST)) continue;
jksoft 0:5975af170e43 1992 } else { /* Could not find the object */
jksoft 0:5975af170e43 1993 if (!(ns & NS_LAST)) res = FR_NO_PATH;
jksoft 0:5975af170e43 1994 }
jksoft 0:5975af170e43 1995 break;
jksoft 0:5975af170e43 1996 }
jksoft 0:5975af170e43 1997 if (ns & NS_LAST) break; /* Last segment match. Function completed. */
jksoft 0:5975af170e43 1998 dir = dj->dir; /* There is next segment. Follow the sub directory */
jksoft 0:5975af170e43 1999 if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
jksoft 0:5975af170e43 2000 res = FR_NO_PATH; break;
jksoft 0:5975af170e43 2001 }
jksoft 0:5975af170e43 2002 dj->sclust = ld_clust(dj->fs, dir);
jksoft 0:5975af170e43 2003 }
jksoft 0:5975af170e43 2004 }
jksoft 0:5975af170e43 2005
jksoft 0:5975af170e43 2006 return res;
jksoft 0:5975af170e43 2007 }
jksoft 0:5975af170e43 2008
jksoft 0:5975af170e43 2009
jksoft 0:5975af170e43 2010
jksoft 0:5975af170e43 2011
jksoft 0:5975af170e43 2012 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2013 /* Load a sector and check if it is an FAT Volume Boot Record */
jksoft 0:5975af170e43 2014 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2015
jksoft 0:5975af170e43 2016 static
jksoft 0:5975af170e43 2017 BYTE check_fs ( /* 0:FAT-VBR, 1:Any BR but not FAT, 2:Not a BR, 3:Disk error */
jksoft 0:5975af170e43 2018 FATFS *fs, /* File system object */
jksoft 0:5975af170e43 2019 DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
jksoft 0:5975af170e43 2020 )
jksoft 0:5975af170e43 2021 {
jksoft 0:5975af170e43 2022 if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK) /* Load boot record */
jksoft 0:5975af170e43 2023 return 3;
jksoft 0:5975af170e43 2024 if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
jksoft 0:5975af170e43 2025 return 2;
jksoft 0:5975af170e43 2026
jksoft 0:5975af170e43 2027 if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
jksoft 0:5975af170e43 2028 return 0;
jksoft 0:5975af170e43 2029 if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
jksoft 0:5975af170e43 2030 return 0;
jksoft 0:5975af170e43 2031
jksoft 0:5975af170e43 2032 return 1;
jksoft 0:5975af170e43 2033 }
jksoft 0:5975af170e43 2034
jksoft 0:5975af170e43 2035
jksoft 0:5975af170e43 2036
jksoft 0:5975af170e43 2037
jksoft 0:5975af170e43 2038 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2039 /* Check if the file system object is valid or not */
jksoft 0:5975af170e43 2040 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2041
jksoft 0:5975af170e43 2042 static
jksoft 0:5975af170e43 2043 FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occurred */
jksoft 0:5975af170e43 2044 const TCHAR **path, /* Pointer to pointer to the path name (drive number) */
jksoft 0:5975af170e43 2045 FATFS **rfs, /* Pointer to pointer to the found file system object */
jksoft 0:5975af170e43 2046 BYTE wmode /* !=0: Check write protection for write access */
jksoft 0:5975af170e43 2047 )
jksoft 0:5975af170e43 2048 {
jksoft 0:5975af170e43 2049 BYTE fmt, b, pi, *tbl;
jksoft 0:5975af170e43 2050 UINT vol;
jksoft 0:5975af170e43 2051 DSTATUS stat;
jksoft 0:5975af170e43 2052 DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
jksoft 0:5975af170e43 2053 WORD nrsv;
jksoft 0:5975af170e43 2054 const TCHAR *p = *path;
jksoft 0:5975af170e43 2055 FATFS *fs;
jksoft 0:5975af170e43 2056
jksoft 0:5975af170e43 2057
jksoft 0:5975af170e43 2058 /* Get logical drive number from the path name */
jksoft 0:5975af170e43 2059 vol = p[0] - '0'; /* Is there a drive number? */
jksoft 0:5975af170e43 2060 if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */
jksoft 0:5975af170e43 2061 p += 2; *path = p; /* Return pointer to the path name */
jksoft 0:5975af170e43 2062 } else { /* No drive number is given */
jksoft 0:5975af170e43 2063 #if _FS_RPATH
jksoft 0:5975af170e43 2064 vol = CurrVol; /* Use current drive */
jksoft 0:5975af170e43 2065 #else
jksoft 0:5975af170e43 2066 vol = 0; /* Use drive 0 */
jksoft 0:5975af170e43 2067 #endif
jksoft 0:5975af170e43 2068 }
jksoft 0:5975af170e43 2069
jksoft 0:5975af170e43 2070 /* Check if the file system object is valid or not */
jksoft 0:5975af170e43 2071 *rfs = 0;
jksoft 0:5975af170e43 2072 if (vol >= _VOLUMES) /* Is the drive number valid? */
jksoft 0:5975af170e43 2073 return FR_INVALID_DRIVE;
jksoft 0:5975af170e43 2074 fs = FatFs[vol]; /* Get corresponding file system object */
jksoft 0:5975af170e43 2075 if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
jksoft 0:5975af170e43 2076
jksoft 0:5975af170e43 2077 ENTER_FF(fs); /* Lock file system */
jksoft 0:5975af170e43 2078
jksoft 0:5975af170e43 2079 *rfs = fs; /* Return pointer to the corresponding file system object */
jksoft 0:5975af170e43 2080 if (fs->fs_type) { /* If the volume has been mounted */
jksoft 0:5975af170e43 2081 stat = disk_status(fs->drv);
jksoft 0:5975af170e43 2082 if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */
jksoft 0:5975af170e43 2083 if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
jksoft 0:5975af170e43 2084 return FR_WRITE_PROTECTED;
jksoft 0:5975af170e43 2085 return FR_OK; /* The file system object is valid */
jksoft 0:5975af170e43 2086 }
jksoft 0:5975af170e43 2087 }
jksoft 0:5975af170e43 2088
jksoft 0:5975af170e43 2089 /* The file system object is not valid. */
jksoft 0:5975af170e43 2090 /* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
jksoft 0:5975af170e43 2091
jksoft 0:5975af170e43 2092 fs->fs_type = 0; /* Clear the file system object */
jksoft 0:5975af170e43 2093 fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
jksoft 0:5975af170e43 2094 stat = disk_initialize(fs->drv); /* Initialize the physical drive */
jksoft 0:5975af170e43 2095 if (stat & STA_NOINIT) /* Check if the initialization succeeded */
jksoft 0:5975af170e43 2096 return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
jksoft 0:5975af170e43 2097 if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
jksoft 0:5975af170e43 2098 return FR_WRITE_PROTECTED;
jksoft 0:5975af170e43 2099 #if _MAX_SS != 512 /* Get disk sector size (variable sector size cfg only) */
jksoft 0:5975af170e43 2100 if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
jksoft 0:5975af170e43 2101 return FR_DISK_ERR;
jksoft 0:5975af170e43 2102 #endif
jksoft 0:5975af170e43 2103 /* Search FAT partition on the drive. Supports only generic partitions, FDISK and SFD. */
jksoft 0:5975af170e43 2104 fmt = check_fs(fs, bsect = 0); /* Load sector 0 and check if it is an FAT-VBR (in SFD) */
jksoft 0:5975af170e43 2105 if (LD2PT(vol) && !fmt) fmt = 1; /* Force non-SFD if the volume is forced partition */
jksoft 0:5975af170e43 2106 if (fmt == 1) { /* Not an FAT-VBR, the physical drive can be partitioned */
jksoft 0:5975af170e43 2107 /* Check the partition listed in the partition table */
jksoft 0:5975af170e43 2108 pi = LD2PT(vol);
jksoft 0:5975af170e43 2109 if (pi) pi--;
jksoft 0:5975af170e43 2110 tbl = &fs->win[MBR_Table + pi * SZ_PTE];/* Partition table */
jksoft 0:5975af170e43 2111 if (tbl[4]) { /* Is the partition existing? */
jksoft 0:5975af170e43 2112 bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
jksoft 0:5975af170e43 2113 fmt = check_fs(fs, bsect); /* Check the partition */
jksoft 0:5975af170e43 2114 }
jksoft 0:5975af170e43 2115 }
jksoft 0:5975af170e43 2116 if (fmt == 3) return FR_DISK_ERR;
jksoft 0:5975af170e43 2117 if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
jksoft 0:5975af170e43 2118
jksoft 0:5975af170e43 2119 /* An FAT volume is found. Following code initializes the file system object */
jksoft 0:5975af170e43 2120
jksoft 0:5975af170e43 2121 if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
jksoft 0:5975af170e43 2122 return FR_NO_FILESYSTEM;
jksoft 0:5975af170e43 2123
jksoft 0:5975af170e43 2124 fasize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */
jksoft 0:5975af170e43 2125 if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32);
jksoft 0:5975af170e43 2126 fs->fsize = fasize;
jksoft 0:5975af170e43 2127
jksoft 0:5975af170e43 2128 fs->n_fats = b = fs->win[BPB_NumFATs]; /* Number of FAT copies */
jksoft 0:5975af170e43 2129 if (b != 1 && b != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
jksoft 0:5975af170e43 2130 fasize *= b; /* Number of sectors for FAT area */
jksoft 0:5975af170e43 2131
jksoft 0:5975af170e43 2132 fs->csize = b = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
jksoft 0:5975af170e43 2133 if (!b || (b & (b - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
jksoft 0:5975af170e43 2134
jksoft 0:5975af170e43 2135 fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Number of root directory entries */
jksoft 0:5975af170e43 2136 if (fs->n_rootdir % (SS(fs) / SZ_DIR)) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be sector aligned) */
jksoft 0:5975af170e43 2137
jksoft 0:5975af170e43 2138 tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */
jksoft 0:5975af170e43 2139 if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
jksoft 0:5975af170e43 2140
jksoft 0:5975af170e43 2141 nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt); /* Number of reserved sectors */
jksoft 0:5975af170e43 2142 if (!nrsv) return FR_NO_FILESYSTEM; /* (BPB_RsvdSecCnt must not be 0) */
jksoft 0:5975af170e43 2143
jksoft 0:5975af170e43 2144 /* Determine the FAT sub type */
jksoft 0:5975af170e43 2145 sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR); /* RSV+FAT+DIR */
jksoft 0:5975af170e43 2146 if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
jksoft 0:5975af170e43 2147 nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
jksoft 0:5975af170e43 2148 if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
jksoft 0:5975af170e43 2149 fmt = FS_FAT12;
jksoft 0:5975af170e43 2150 if (nclst >= MIN_FAT16) fmt = FS_FAT16;
jksoft 0:5975af170e43 2151 if (nclst >= MIN_FAT32) fmt = FS_FAT32;
jksoft 0:5975af170e43 2152
jksoft 0:5975af170e43 2153 /* Boundaries and Limits */
jksoft 0:5975af170e43 2154 fs->n_fatent = nclst + 2; /* Number of FAT entries */
jksoft 0:5975af170e43 2155 fs->database = bsect + sysect; /* Data start sector */
jksoft 0:5975af170e43 2156 fs->fatbase = bsect + nrsv; /* FAT start sector */
jksoft 0:5975af170e43 2157 if (fmt == FS_FAT32) {
jksoft 0:5975af170e43 2158 if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
jksoft 0:5975af170e43 2159 fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
jksoft 0:5975af170e43 2160 szbfat = fs->n_fatent * 4; /* (Required FAT size) */
jksoft 0:5975af170e43 2161 } else {
jksoft 0:5975af170e43 2162 if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
jksoft 0:5975af170e43 2163 fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
jksoft 0:5975af170e43 2164 szbfat = (fmt == FS_FAT16) ? /* (Required FAT size) */
jksoft 0:5975af170e43 2165 fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
jksoft 0:5975af170e43 2166 }
jksoft 0:5975af170e43 2167 if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than required) */
jksoft 0:5975af170e43 2168 return FR_NO_FILESYSTEM;
jksoft 0:5975af170e43 2169
jksoft 0:5975af170e43 2170 #if !_FS_READONLY
jksoft 0:5975af170e43 2171 /* Initialize cluster allocation information */
jksoft 0:5975af170e43 2172 fs->free_clust = 0xFFFFFFFF;
jksoft 0:5975af170e43 2173 fs->last_clust = 0;
jksoft 0:5975af170e43 2174
jksoft 0:5975af170e43 2175 /* Get fsinfo if available */
jksoft 0:5975af170e43 2176 if (fmt == FS_FAT32) {
jksoft 0:5975af170e43 2177 fs->fsi_flag = 0;
jksoft 0:5975af170e43 2178 fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
jksoft 0:5975af170e43 2179 if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK &&
jksoft 0:5975af170e43 2180 LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
jksoft 0:5975af170e43 2181 LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
jksoft 0:5975af170e43 2182 LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
jksoft 0:5975af170e43 2183 fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
jksoft 0:5975af170e43 2184 fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
jksoft 0:5975af170e43 2185 }
jksoft 0:5975af170e43 2186 }
jksoft 0:5975af170e43 2187 #endif
jksoft 0:5975af170e43 2188 fs->fs_type = fmt; /* FAT sub-type */
jksoft 0:5975af170e43 2189 fs->id = ++Fsid; /* File system mount ID */
jksoft 0:5975af170e43 2190 fs->winsect = 0; /* Invalidate sector cache */
jksoft 0:5975af170e43 2191 fs->wflag = 0;
jksoft 0:5975af170e43 2192 #if _FS_RPATH
jksoft 0:5975af170e43 2193 fs->cdir = 0; /* Current directory (root dir) */
jksoft 0:5975af170e43 2194 #endif
jksoft 0:5975af170e43 2195 #if _FS_LOCK /* Clear file lock semaphores */
jksoft 0:5975af170e43 2196 clear_lock(fs);
jksoft 0:5975af170e43 2197 #endif
jksoft 0:5975af170e43 2198
jksoft 0:5975af170e43 2199 return FR_OK;
jksoft 0:5975af170e43 2200 }
jksoft 0:5975af170e43 2201
jksoft 0:5975af170e43 2202
jksoft 0:5975af170e43 2203
jksoft 0:5975af170e43 2204
jksoft 0:5975af170e43 2205 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2206 /* Check if the file/dir object is valid or not */
jksoft 0:5975af170e43 2207 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2208
jksoft 0:5975af170e43 2209 static
jksoft 0:5975af170e43 2210 FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
jksoft 0:5975af170e43 2211 void* obj /* Pointer to the object FIL/DIR to check validity */
jksoft 0:5975af170e43 2212 )
jksoft 0:5975af170e43 2213 {
jksoft 0:5975af170e43 2214 FIL *fil;
jksoft 0:5975af170e43 2215
jksoft 0:5975af170e43 2216
jksoft 0:5975af170e43 2217 fil = (FIL*)obj; /* Assuming offset of fs and id in the FIL/DIR is identical */
jksoft 0:5975af170e43 2218 if (!fil->fs || !fil->fs->fs_type || fil->fs->id != fil->id)
jksoft 0:5975af170e43 2219 return FR_INVALID_OBJECT;
jksoft 0:5975af170e43 2220
jksoft 0:5975af170e43 2221 ENTER_FF(fil->fs); /* Lock file system */
jksoft 0:5975af170e43 2222
jksoft 0:5975af170e43 2223 if (disk_status(fil->fs->drv) & STA_NOINIT)
jksoft 0:5975af170e43 2224 return FR_NOT_READY;
jksoft 0:5975af170e43 2225
jksoft 0:5975af170e43 2226 return FR_OK;
jksoft 0:5975af170e43 2227 }
jksoft 0:5975af170e43 2228
jksoft 0:5975af170e43 2229
jksoft 0:5975af170e43 2230
jksoft 0:5975af170e43 2231
jksoft 0:5975af170e43 2232 /*--------------------------------------------------------------------------
jksoft 0:5975af170e43 2233
jksoft 0:5975af170e43 2234 Public Functions
jksoft 0:5975af170e43 2235
jksoft 0:5975af170e43 2236 --------------------------------------------------------------------------*/
jksoft 0:5975af170e43 2237
jksoft 0:5975af170e43 2238
jksoft 0:5975af170e43 2239
jksoft 0:5975af170e43 2240 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2241 /* Mount/Unmount a Logical Drive */
jksoft 0:5975af170e43 2242 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2243
jksoft 0:5975af170e43 2244 FRESULT f_mount (
jksoft 0:5975af170e43 2245 BYTE vol, /* Logical drive number to be mounted/unmounted */
jksoft 0:5975af170e43 2246 FATFS *fs /* Pointer to new file system object (NULL for unmount)*/
jksoft 0:5975af170e43 2247 )
jksoft 0:5975af170e43 2248 {
jksoft 0:5975af170e43 2249 FATFS *rfs;
jksoft 0:5975af170e43 2250
jksoft 0:5975af170e43 2251
jksoft 0:5975af170e43 2252 if (vol >= _VOLUMES) /* Check if the drive number is valid */
jksoft 0:5975af170e43 2253 return FR_INVALID_DRIVE;
jksoft 0:5975af170e43 2254 rfs = FatFs[vol]; /* Get current fs object */
jksoft 0:5975af170e43 2255
jksoft 0:5975af170e43 2256 if (rfs) {
jksoft 0:5975af170e43 2257 #if _FS_LOCK
jksoft 0:5975af170e43 2258 clear_lock(rfs);
jksoft 0:5975af170e43 2259 #endif
jksoft 0:5975af170e43 2260 #if _FS_REENTRANT /* Discard sync object of the current volume */
jksoft 0:5975af170e43 2261 if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
jksoft 0:5975af170e43 2262 #endif
jksoft 0:5975af170e43 2263 rfs->fs_type = 0; /* Clear old fs object */
jksoft 0:5975af170e43 2264 }
jksoft 0:5975af170e43 2265
jksoft 0:5975af170e43 2266 if (fs) {
jksoft 0:5975af170e43 2267 fs->fs_type = 0; /* Clear new fs object */
jksoft 0:5975af170e43 2268 #if _FS_REENTRANT /* Create sync object for the new volume */
jksoft 0:5975af170e43 2269 if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
jksoft 0:5975af170e43 2270 #endif
jksoft 0:5975af170e43 2271 }
jksoft 0:5975af170e43 2272 FatFs[vol] = fs; /* Register new fs object */
jksoft 0:5975af170e43 2273
jksoft 0:5975af170e43 2274 return FR_OK;
jksoft 0:5975af170e43 2275 }
jksoft 0:5975af170e43 2276
jksoft 0:5975af170e43 2277
jksoft 0:5975af170e43 2278
jksoft 0:5975af170e43 2279
jksoft 0:5975af170e43 2280 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2281 /* Open or Create a File */
jksoft 0:5975af170e43 2282 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2283
jksoft 0:5975af170e43 2284 FRESULT f_open (
jksoft 0:5975af170e43 2285 FIL *fp, /* Pointer to the blank file object */
jksoft 0:5975af170e43 2286 const TCHAR *path, /* Pointer to the file name */
jksoft 0:5975af170e43 2287 BYTE mode /* Access mode and file open mode flags */
jksoft 0:5975af170e43 2288 )
jksoft 0:5975af170e43 2289 {
jksoft 0:5975af170e43 2290 FRESULT res;
jksoft 0:5975af170e43 2291 FATFS_DIR dj;
jksoft 0:5975af170e43 2292 BYTE *dir;
jksoft 0:5975af170e43 2293 DEF_NAMEBUF;
jksoft 0:5975af170e43 2294
jksoft 0:5975af170e43 2295
jksoft 0:5975af170e43 2296 if (!fp) return FR_INVALID_OBJECT;
jksoft 0:5975af170e43 2297 fp->fs = 0; /* Clear file object */
jksoft 0:5975af170e43 2298
jksoft 0:5975af170e43 2299 #if !_FS_READONLY
jksoft 0:5975af170e43 2300 mode &= FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW;
jksoft 0:5975af170e43 2301 res = chk_mounted(&path, &dj.fs, (BYTE)(mode & ~FA_READ));
jksoft 0:5975af170e43 2302 #else
jksoft 0:5975af170e43 2303 mode &= FA_READ;
jksoft 0:5975af170e43 2304 res = chk_mounted(&path, &dj.fs, 0);
jksoft 0:5975af170e43 2305 #endif
jksoft 0:5975af170e43 2306 if (res == FR_OK) {
jksoft 0:5975af170e43 2307 INIT_BUF(dj);
jksoft 0:5975af170e43 2308 res = follow_path(&dj, path); /* Follow the file path */
jksoft 0:5975af170e43 2309 dir = dj.dir;
jksoft 0:5975af170e43 2310 #if !_FS_READONLY /* R/W configuration */
jksoft 0:5975af170e43 2311 if (res == FR_OK) {
jksoft 0:5975af170e43 2312 if (!dir) /* Current dir itself */
jksoft 0:5975af170e43 2313 res = FR_INVALID_NAME;
jksoft 0:5975af170e43 2314 #if _FS_LOCK
jksoft 0:5975af170e43 2315 else
jksoft 0:5975af170e43 2316 res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
jksoft 0:5975af170e43 2317 #endif
jksoft 0:5975af170e43 2318 }
jksoft 0:5975af170e43 2319 /* Create or Open a file */
jksoft 0:5975af170e43 2320 if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) {
jksoft 0:5975af170e43 2321 DWORD dw, cl;
jksoft 0:5975af170e43 2322
jksoft 0:5975af170e43 2323 if (res != FR_OK) { /* No file, create new */
jksoft 0:5975af170e43 2324 if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
jksoft 0:5975af170e43 2325 #if _FS_LOCK
jksoft 0:5975af170e43 2326 res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
jksoft 0:5975af170e43 2327 #else
jksoft 0:5975af170e43 2328 res = dir_register(&dj);
jksoft 0:5975af170e43 2329 #endif
jksoft 0:5975af170e43 2330 mode |= FA_CREATE_ALWAYS; /* File is created */
jksoft 0:5975af170e43 2331 dir = dj.dir; /* New entry */
jksoft 0:5975af170e43 2332 }
jksoft 0:5975af170e43 2333 else { /* Any object is already existing */
jksoft 0:5975af170e43 2334 if (dir[DIR_Attr] & (AM_RDO | AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */
jksoft 0:5975af170e43 2335 res = FR_DENIED;
jksoft 0:5975af170e43 2336 } else {
jksoft 0:5975af170e43 2337 if (mode & FA_CREATE_NEW) /* Cannot create as new file */
jksoft 0:5975af170e43 2338 res = FR_EXIST;
jksoft 0:5975af170e43 2339 }
jksoft 0:5975af170e43 2340 }
jksoft 0:5975af170e43 2341 if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
jksoft 0:5975af170e43 2342 dw = get_fattime(); /* Created time */
jksoft 0:5975af170e43 2343 ST_DWORD(dir+DIR_CrtTime, dw);
jksoft 0:5975af170e43 2344 dir[DIR_Attr] = 0; /* Reset attribute */
jksoft 0:5975af170e43 2345 ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
jksoft 0:5975af170e43 2346 cl = ld_clust(dj.fs, dir); /* Get start cluster */
jksoft 0:5975af170e43 2347 st_clust(dir, 0); /* cluster = 0 */
jksoft 0:5975af170e43 2348 dj.fs->wflag = 1;
jksoft 0:5975af170e43 2349 if (cl) { /* Remove the cluster chain if exist */
jksoft 0:5975af170e43 2350 dw = dj.fs->winsect;
jksoft 0:5975af170e43 2351 res = remove_chain(dj.fs, cl);
jksoft 0:5975af170e43 2352 if (res == FR_OK) {
jksoft 0:5975af170e43 2353 dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
jksoft 0:5975af170e43 2354 res = move_window(dj.fs, dw);
jksoft 0:5975af170e43 2355 }
jksoft 0:5975af170e43 2356 }
jksoft 0:5975af170e43 2357 }
jksoft 0:5975af170e43 2358 }
jksoft 0:5975af170e43 2359 else { /* Open an existing file */
jksoft 0:5975af170e43 2360 if (res == FR_OK) { /* Follow succeeded */
jksoft 0:5975af170e43 2361 if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
jksoft 0:5975af170e43 2362 res = FR_NO_FILE;
jksoft 0:5975af170e43 2363 } else {
jksoft 0:5975af170e43 2364 if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
jksoft 0:5975af170e43 2365 res = FR_DENIED;
jksoft 0:5975af170e43 2366 }
jksoft 0:5975af170e43 2367 }
jksoft 0:5975af170e43 2368 }
jksoft 0:5975af170e43 2369 if (res == FR_OK) {
jksoft 0:5975af170e43 2370 if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
jksoft 0:5975af170e43 2371 mode |= FA__WRITTEN;
jksoft 0:5975af170e43 2372 fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
jksoft 0:5975af170e43 2373 fp->dir_ptr = dir;
jksoft 0:5975af170e43 2374 #if _FS_LOCK
jksoft 0:5975af170e43 2375 fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
jksoft 0:5975af170e43 2376 if (!fp->lockid) res = FR_INT_ERR;
jksoft 0:5975af170e43 2377 #endif
jksoft 0:5975af170e43 2378 }
jksoft 0:5975af170e43 2379
jksoft 0:5975af170e43 2380 #else /* R/O configuration */
jksoft 0:5975af170e43 2381 if (res == FR_OK) { /* Follow succeeded */
jksoft 0:5975af170e43 2382 dir = dj.dir;
jksoft 0:5975af170e43 2383 if (!dir) { /* Current dir itself */
jksoft 0:5975af170e43 2384 res = FR_INVALID_NAME;
jksoft 0:5975af170e43 2385 } else {
jksoft 0:5975af170e43 2386 if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
jksoft 0:5975af170e43 2387 res = FR_NO_FILE;
jksoft 0:5975af170e43 2388 }
jksoft 0:5975af170e43 2389 }
jksoft 0:5975af170e43 2390 #endif
jksoft 0:5975af170e43 2391 FREE_BUF();
jksoft 0:5975af170e43 2392
jksoft 0:5975af170e43 2393 if (res == FR_OK) {
jksoft 0:5975af170e43 2394 fp->flag = mode; /* File access mode */
jksoft 0:5975af170e43 2395 fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
jksoft 0:5975af170e43 2396 fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
jksoft 0:5975af170e43 2397 fp->fptr = 0; /* File pointer */
jksoft 0:5975af170e43 2398 fp->dsect = 0;
jksoft 0:5975af170e43 2399 #if _USE_FASTSEEK
jksoft 0:5975af170e43 2400 fp->cltbl = 0; /* Normal seek mode */
jksoft 0:5975af170e43 2401 #endif
jksoft 0:5975af170e43 2402 fp->fs = dj.fs; fp->id = dj.fs->id; /* Validate file object */
jksoft 0:5975af170e43 2403 }
jksoft 0:5975af170e43 2404 }
jksoft 0:5975af170e43 2405
jksoft 0:5975af170e43 2406 LEAVE_FF(dj.fs, res);
jksoft 0:5975af170e43 2407 }
jksoft 0:5975af170e43 2408
jksoft 0:5975af170e43 2409
jksoft 0:5975af170e43 2410
jksoft 0:5975af170e43 2411
jksoft 0:5975af170e43 2412 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2413 /* Read File */
jksoft 0:5975af170e43 2414 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2415
jksoft 0:5975af170e43 2416 FRESULT f_read (
jksoft 0:5975af170e43 2417 FIL *fp, /* Pointer to the file object */
jksoft 0:5975af170e43 2418 void *buff, /* Pointer to data buffer */
jksoft 0:5975af170e43 2419 UINT btr, /* Number of bytes to read */
jksoft 0:5975af170e43 2420 UINT *br /* Pointer to number of bytes read */
jksoft 0:5975af170e43 2421 )
jksoft 0:5975af170e43 2422 {
jksoft 0:5975af170e43 2423 FRESULT res;
jksoft 0:5975af170e43 2424 DWORD clst, sect, remain;
jksoft 0:5975af170e43 2425 UINT rcnt, cc;
jksoft 0:5975af170e43 2426 BYTE csect, *rbuff = (BYTE *)buff;
jksoft 0:5975af170e43 2427
jksoft 0:5975af170e43 2428
jksoft 0:5975af170e43 2429 *br = 0; /* Clear read byte counter */
jksoft 0:5975af170e43 2430
jksoft 0:5975af170e43 2431 res = validate(fp); /* Check validity */
jksoft 0:5975af170e43 2432 if (res != FR_OK) LEAVE_FF(fp->fs, res);
jksoft 0:5975af170e43 2433 if (fp->flag & FA__ERROR) /* Aborted file? */
jksoft 0:5975af170e43 2434 LEAVE_FF(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 2435 if (!(fp->flag & FA_READ)) /* Check access mode */
jksoft 0:5975af170e43 2436 LEAVE_FF(fp->fs, FR_DENIED);
jksoft 0:5975af170e43 2437 remain = fp->fsize - fp->fptr;
jksoft 0:5975af170e43 2438 if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
jksoft 0:5975af170e43 2439
jksoft 0:5975af170e43 2440 for ( ; btr; /* Repeat until all data read */
jksoft 0:5975af170e43 2441 rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
jksoft 0:5975af170e43 2442 if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
jksoft 0:5975af170e43 2443 csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
jksoft 0:5975af170e43 2444 if (!csect) { /* On the cluster boundary? */
jksoft 0:5975af170e43 2445 if (fp->fptr == 0) { /* On the top of the file? */
jksoft 0:5975af170e43 2446 clst = fp->sclust; /* Follow from the origin */
jksoft 0:5975af170e43 2447 } else { /* Middle or end of the file */
jksoft 0:5975af170e43 2448 #if _USE_FASTSEEK
jksoft 0:5975af170e43 2449 if (fp->cltbl)
jksoft 0:5975af170e43 2450 clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
jksoft 0:5975af170e43 2451 else
jksoft 0:5975af170e43 2452 #endif
jksoft 0:5975af170e43 2453 clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
jksoft 0:5975af170e43 2454 }
jksoft 0:5975af170e43 2455 if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 2456 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2457 fp->clust = clst; /* Update current cluster */
jksoft 0:5975af170e43 2458 }
jksoft 0:5975af170e43 2459 sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
jksoft 0:5975af170e43 2460 if (!sect) ABORT(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 2461 sect += csect;
jksoft 0:5975af170e43 2462 cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
jksoft 0:5975af170e43 2463 if (cc) { /* Read maximum contiguous sectors directly */
jksoft 0:5975af170e43 2464 if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
jksoft 0:5975af170e43 2465 cc = fp->fs->csize - csect;
jksoft 0:5975af170e43 2466 if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK)
jksoft 0:5975af170e43 2467 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2468 #if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
jksoft 0:5975af170e43 2469 #if _FS_TINY
jksoft 0:5975af170e43 2470 if (fp->fs->wflag && fp->fs->winsect - sect < cc)
jksoft 0:5975af170e43 2471 mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
jksoft 0:5975af170e43 2472 #else
jksoft 0:5975af170e43 2473 if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
jksoft 0:5975af170e43 2474 mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
jksoft 0:5975af170e43 2475 #endif
jksoft 0:5975af170e43 2476 #endif
jksoft 0:5975af170e43 2477 rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
jksoft 0:5975af170e43 2478 continue;
jksoft 0:5975af170e43 2479 }
jksoft 0:5975af170e43 2480 #if !_FS_TINY
jksoft 0:5975af170e43 2481 if (fp->dsect != sect) { /* Load data sector if not in cache */
jksoft 0:5975af170e43 2482 #if !_FS_READONLY
jksoft 0:5975af170e43 2483 if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
jksoft 0:5975af170e43 2484 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
jksoft 0:5975af170e43 2485 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2486 fp->flag &= ~FA__DIRTY;
jksoft 0:5975af170e43 2487 }
jksoft 0:5975af170e43 2488 #endif
jksoft 0:5975af170e43 2489 if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
jksoft 0:5975af170e43 2490 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2491 }
jksoft 0:5975af170e43 2492 #endif
jksoft 0:5975af170e43 2493 fp->dsect = sect;
jksoft 0:5975af170e43 2494 }
jksoft 0:5975af170e43 2495 rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
jksoft 0:5975af170e43 2496 if (rcnt > btr) rcnt = btr;
jksoft 0:5975af170e43 2497 #if _FS_TINY
jksoft 0:5975af170e43 2498 if (move_window(fp->fs, fp->dsect)) /* Move sector window */
jksoft 0:5975af170e43 2499 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2500 mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
jksoft 0:5975af170e43 2501 #else
jksoft 0:5975af170e43 2502 mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
jksoft 0:5975af170e43 2503 #endif
jksoft 0:5975af170e43 2504 }
jksoft 0:5975af170e43 2505
jksoft 0:5975af170e43 2506 LEAVE_FF(fp->fs, FR_OK);
jksoft 0:5975af170e43 2507 }
jksoft 0:5975af170e43 2508
jksoft 0:5975af170e43 2509
jksoft 0:5975af170e43 2510
jksoft 0:5975af170e43 2511
jksoft 0:5975af170e43 2512 #if !_FS_READONLY
jksoft 0:5975af170e43 2513 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2514 /* Write File */
jksoft 0:5975af170e43 2515 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2516
jksoft 0:5975af170e43 2517 FRESULT f_write (
jksoft 0:5975af170e43 2518 FIL *fp, /* Pointer to the file object */
jksoft 0:5975af170e43 2519 const void *buff, /* Pointer to the data to be written */
jksoft 0:5975af170e43 2520 UINT btw, /* Number of bytes to write */
jksoft 0:5975af170e43 2521 UINT *bw /* Pointer to number of bytes written */
jksoft 0:5975af170e43 2522 )
jksoft 0:5975af170e43 2523 {
jksoft 0:5975af170e43 2524 FRESULT res;
jksoft 0:5975af170e43 2525 DWORD clst, sect;
jksoft 0:5975af170e43 2526 UINT wcnt, cc;
jksoft 0:5975af170e43 2527 const BYTE *wbuff = (const BYTE *)buff;
jksoft 0:5975af170e43 2528 BYTE csect;
jksoft 0:5975af170e43 2529
jksoft 0:5975af170e43 2530
jksoft 0:5975af170e43 2531 *bw = 0; /* Clear write byte counter */
jksoft 0:5975af170e43 2532
jksoft 0:5975af170e43 2533 res = validate(fp); /* Check validity */
jksoft 0:5975af170e43 2534 if (res != FR_OK) LEAVE_FF(fp->fs, res);
jksoft 0:5975af170e43 2535 if (fp->flag & FA__ERROR) /* Aborted file? */
jksoft 0:5975af170e43 2536 LEAVE_FF(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 2537 if (!(fp->flag & FA_WRITE)) /* Check access mode */
jksoft 0:5975af170e43 2538 LEAVE_FF(fp->fs, FR_DENIED);
jksoft 0:5975af170e43 2539 if ((DWORD)(fp->fsize + btw) < fp->fsize) btw = 0; /* File size cannot reach 4GB */
jksoft 0:5975af170e43 2540
jksoft 0:5975af170e43 2541 for ( ; btw; /* Repeat until all data written */
jksoft 0:5975af170e43 2542 wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
jksoft 0:5975af170e43 2543 if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
jksoft 0:5975af170e43 2544 csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
jksoft 0:5975af170e43 2545 if (!csect) { /* On the cluster boundary? */
jksoft 0:5975af170e43 2546 if (fp->fptr == 0) { /* On the top of the file? */
jksoft 0:5975af170e43 2547 clst = fp->sclust; /* Follow from the origin */
jksoft 0:5975af170e43 2548 if (clst == 0) /* When no cluster is allocated, */
jksoft 0:5975af170e43 2549 fp->sclust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
jksoft 0:5975af170e43 2550 } else { /* Middle or end of the file */
jksoft 0:5975af170e43 2551 #if _USE_FASTSEEK
jksoft 0:5975af170e43 2552 if (fp->cltbl)
jksoft 0:5975af170e43 2553 clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
jksoft 0:5975af170e43 2554 else
jksoft 0:5975af170e43 2555 #endif
jksoft 0:5975af170e43 2556 clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
jksoft 0:5975af170e43 2557 }
jksoft 0:5975af170e43 2558 if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
jksoft 0:5975af170e43 2559 if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 2560 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2561 fp->clust = clst; /* Update current cluster */
jksoft 0:5975af170e43 2562 }
jksoft 0:5975af170e43 2563 #if _FS_TINY
jksoft 0:5975af170e43 2564 if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write-back sector cache */
jksoft 0:5975af170e43 2565 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2566 #else
jksoft 0:5975af170e43 2567 if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
jksoft 0:5975af170e43 2568 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
jksoft 0:5975af170e43 2569 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2570 fp->flag &= ~FA__DIRTY;
jksoft 0:5975af170e43 2571 }
jksoft 0:5975af170e43 2572 #endif
jksoft 0:5975af170e43 2573 sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
jksoft 0:5975af170e43 2574 if (!sect) ABORT(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 2575 sect += csect;
jksoft 0:5975af170e43 2576 cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
jksoft 0:5975af170e43 2577 if (cc) { /* Write maximum contiguous sectors directly */
jksoft 0:5975af170e43 2578 if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
jksoft 0:5975af170e43 2579 cc = fp->fs->csize - csect;
jksoft 0:5975af170e43 2580 if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK)
jksoft 0:5975af170e43 2581 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2582 #if _FS_TINY
jksoft 0:5975af170e43 2583 if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
jksoft 0:5975af170e43 2584 mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
jksoft 0:5975af170e43 2585 fp->fs->wflag = 0;
jksoft 0:5975af170e43 2586 }
jksoft 0:5975af170e43 2587 #else
jksoft 0:5975af170e43 2588 if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
jksoft 0:5975af170e43 2589 mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
jksoft 0:5975af170e43 2590 fp->flag &= ~FA__DIRTY;
jksoft 0:5975af170e43 2591 }
jksoft 0:5975af170e43 2592 #endif
jksoft 0:5975af170e43 2593 wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
jksoft 0:5975af170e43 2594 continue;
jksoft 0:5975af170e43 2595 }
jksoft 0:5975af170e43 2596 #if _FS_TINY
jksoft 0:5975af170e43 2597 if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
jksoft 0:5975af170e43 2598 if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2599 fp->fs->winsect = sect;
jksoft 0:5975af170e43 2600 }
jksoft 0:5975af170e43 2601 #else
jksoft 0:5975af170e43 2602 if (fp->dsect != sect) { /* Fill sector cache with file data */
jksoft 0:5975af170e43 2603 if (fp->fptr < fp->fsize &&
jksoft 0:5975af170e43 2604 disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
jksoft 0:5975af170e43 2605 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2606 }
jksoft 0:5975af170e43 2607 #endif
jksoft 0:5975af170e43 2608 fp->dsect = sect;
jksoft 0:5975af170e43 2609 }
jksoft 0:5975af170e43 2610 wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
jksoft 0:5975af170e43 2611 if (wcnt > btw) wcnt = btw;
jksoft 0:5975af170e43 2612 #if _FS_TINY
jksoft 0:5975af170e43 2613 if (move_window(fp->fs, fp->dsect)) /* Move sector window */
jksoft 0:5975af170e43 2614 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2615 mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
jksoft 0:5975af170e43 2616 fp->fs->wflag = 1;
jksoft 0:5975af170e43 2617 #else
jksoft 0:5975af170e43 2618 mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
jksoft 0:5975af170e43 2619 fp->flag |= FA__DIRTY;
jksoft 0:5975af170e43 2620 #endif
jksoft 0:5975af170e43 2621 }
jksoft 0:5975af170e43 2622
jksoft 0:5975af170e43 2623 if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
jksoft 0:5975af170e43 2624 fp->flag |= FA__WRITTEN; /* Set file change flag */
jksoft 0:5975af170e43 2625
jksoft 0:5975af170e43 2626 LEAVE_FF(fp->fs, FR_OK);
jksoft 0:5975af170e43 2627 }
jksoft 0:5975af170e43 2628
jksoft 0:5975af170e43 2629
jksoft 0:5975af170e43 2630
jksoft 0:5975af170e43 2631
jksoft 0:5975af170e43 2632 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2633 /* Synchronize the File Object */
jksoft 0:5975af170e43 2634 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2635
jksoft 0:5975af170e43 2636 FRESULT f_sync (
jksoft 0:5975af170e43 2637 FIL *fp /* Pointer to the file object */
jksoft 0:5975af170e43 2638 )
jksoft 0:5975af170e43 2639 {
jksoft 0:5975af170e43 2640 FRESULT res;
jksoft 0:5975af170e43 2641 DWORD tim;
jksoft 0:5975af170e43 2642 BYTE *dir;
jksoft 0:5975af170e43 2643
jksoft 0:5975af170e43 2644
jksoft 0:5975af170e43 2645 res = validate(fp); /* Check validity of the object */
jksoft 0:5975af170e43 2646 if (res == FR_OK) {
jksoft 0:5975af170e43 2647 if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
jksoft 0:5975af170e43 2648 #if !_FS_TINY /* Write-back dirty buffer */
jksoft 0:5975af170e43 2649 if (fp->flag & FA__DIRTY) {
jksoft 0:5975af170e43 2650 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
jksoft 0:5975af170e43 2651 LEAVE_FF(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2652 fp->flag &= ~FA__DIRTY;
jksoft 0:5975af170e43 2653 }
jksoft 0:5975af170e43 2654 #endif
jksoft 0:5975af170e43 2655 /* Update the directory entry */
jksoft 0:5975af170e43 2656 res = move_window(fp->fs, fp->dir_sect);
jksoft 0:5975af170e43 2657 if (res == FR_OK) {
jksoft 0:5975af170e43 2658 dir = fp->dir_ptr;
jksoft 0:5975af170e43 2659 dir[DIR_Attr] |= AM_ARC; /* Set archive bit */
jksoft 0:5975af170e43 2660 ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
jksoft 0:5975af170e43 2661 st_clust(dir, fp->sclust); /* Update start cluster */
jksoft 0:5975af170e43 2662 tim = get_fattime(); /* Update updated time */
jksoft 0:5975af170e43 2663 ST_DWORD(dir+DIR_WrtTime, tim);
jksoft 0:5975af170e43 2664 ST_WORD(dir+DIR_LstAccDate, 0);
jksoft 0:5975af170e43 2665 fp->flag &= ~FA__WRITTEN;
jksoft 0:5975af170e43 2666 fp->fs->wflag = 1;
jksoft 0:5975af170e43 2667 res = sync(fp->fs);
jksoft 0:5975af170e43 2668 }
jksoft 0:5975af170e43 2669 }
jksoft 0:5975af170e43 2670 }
jksoft 0:5975af170e43 2671
jksoft 0:5975af170e43 2672 LEAVE_FF(fp->fs, res);
jksoft 0:5975af170e43 2673 }
jksoft 0:5975af170e43 2674
jksoft 0:5975af170e43 2675 #endif /* !_FS_READONLY */
jksoft 0:5975af170e43 2676
jksoft 0:5975af170e43 2677
jksoft 0:5975af170e43 2678
jksoft 0:5975af170e43 2679
jksoft 0:5975af170e43 2680 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2681 /* Close File */
jksoft 0:5975af170e43 2682 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2683
jksoft 0:5975af170e43 2684 FRESULT f_close (
jksoft 0:5975af170e43 2685 FIL *fp /* Pointer to the file object to be closed */
jksoft 0:5975af170e43 2686 )
jksoft 0:5975af170e43 2687 {
jksoft 0:5975af170e43 2688 FRESULT res;
jksoft 0:5975af170e43 2689
jksoft 0:5975af170e43 2690
jksoft 0:5975af170e43 2691 #if _FS_READONLY
jksoft 0:5975af170e43 2692 res = validate(fp);
jksoft 0:5975af170e43 2693 {
jksoft 0:5975af170e43 2694 #if _FS_REENTRANT
jksoft 0:5975af170e43 2695 FATFS *fs = fp->fs;
jksoft 0:5975af170e43 2696 #endif
jksoft 0:5975af170e43 2697 if (res == FR_OK) fp->fs = 0; /* Discard file object */
jksoft 0:5975af170e43 2698 LEAVE_FF(fs, res);
jksoft 0:5975af170e43 2699 }
jksoft 0:5975af170e43 2700 #else
jksoft 0:5975af170e43 2701 res = f_sync(fp); /* Flush cached data */
jksoft 0:5975af170e43 2702 #if _FS_LOCK
jksoft 0:5975af170e43 2703 if (res == FR_OK) { /* Decrement open counter */
jksoft 0:5975af170e43 2704 #if _FS_REENTRANT
jksoft 0:5975af170e43 2705 FATFS *fs = fp->fs;;
jksoft 0:5975af170e43 2706 res = validate(fp);
jksoft 0:5975af170e43 2707 if (res == FR_OK) {
jksoft 0:5975af170e43 2708 res = dec_lock(fp->lockid);
jksoft 0:5975af170e43 2709 unlock_fs(fs, FR_OK);
jksoft 0:5975af170e43 2710 }
jksoft 0:5975af170e43 2711 #else
jksoft 0:5975af170e43 2712 res = dec_lock(fp->lockid);
jksoft 0:5975af170e43 2713 #endif
jksoft 0:5975af170e43 2714 }
jksoft 0:5975af170e43 2715 #endif
jksoft 0:5975af170e43 2716 if (res == FR_OK) fp->fs = 0; /* Discard file object */
jksoft 0:5975af170e43 2717 return res;
jksoft 0:5975af170e43 2718 #endif
jksoft 0:5975af170e43 2719 }
jksoft 0:5975af170e43 2720
jksoft 0:5975af170e43 2721
jksoft 0:5975af170e43 2722
jksoft 0:5975af170e43 2723
jksoft 0:5975af170e43 2724 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2725 /* Current Drive/Directory Handlings */
jksoft 0:5975af170e43 2726 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2727
jksoft 0:5975af170e43 2728 #if _FS_RPATH >= 1
jksoft 0:5975af170e43 2729
jksoft 0:5975af170e43 2730 FRESULT f_chdrive (
jksoft 0:5975af170e43 2731 BYTE drv /* Drive number */
jksoft 0:5975af170e43 2732 )
jksoft 0:5975af170e43 2733 {
jksoft 0:5975af170e43 2734 if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
jksoft 0:5975af170e43 2735
jksoft 0:5975af170e43 2736 CurrVol = drv;
jksoft 0:5975af170e43 2737
jksoft 0:5975af170e43 2738 return FR_OK;
jksoft 0:5975af170e43 2739 }
jksoft 0:5975af170e43 2740
jksoft 0:5975af170e43 2741
jksoft 0:5975af170e43 2742
jksoft 0:5975af170e43 2743 FRESULT f_chdir (
jksoft 0:5975af170e43 2744 const TCHAR *path /* Pointer to the directory path */
jksoft 0:5975af170e43 2745 )
jksoft 0:5975af170e43 2746 {
jksoft 0:5975af170e43 2747 FRESULT res;
jksoft 0:5975af170e43 2748 DIR dj;
jksoft 0:5975af170e43 2749 DEF_NAMEBUF;
jksoft 0:5975af170e43 2750
jksoft 0:5975af170e43 2751
jksoft 0:5975af170e43 2752 res = chk_mounted(&path, &dj.fs, 0);
jksoft 0:5975af170e43 2753 if (res == FR_OK) {
jksoft 0:5975af170e43 2754 INIT_BUF(dj);
jksoft 0:5975af170e43 2755 res = follow_path(&dj, path); /* Follow the path */
jksoft 0:5975af170e43 2756 FREE_BUF();
jksoft 0:5975af170e43 2757 if (res == FR_OK) { /* Follow completed */
jksoft 0:5975af170e43 2758 if (!dj.dir) {
jksoft 0:5975af170e43 2759 dj.fs->cdir = dj.sclust; /* Start directory itself */
jksoft 0:5975af170e43 2760 } else {
jksoft 0:5975af170e43 2761 if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
jksoft 0:5975af170e43 2762 dj.fs->cdir = ld_clust(dj.fs, dj.dir);
jksoft 0:5975af170e43 2763 else
jksoft 0:5975af170e43 2764 res = FR_NO_PATH; /* Reached but a file */
jksoft 0:5975af170e43 2765 }
jksoft 0:5975af170e43 2766 }
jksoft 0:5975af170e43 2767 if (res == FR_NO_FILE) res = FR_NO_PATH;
jksoft 0:5975af170e43 2768 }
jksoft 0:5975af170e43 2769
jksoft 0:5975af170e43 2770 LEAVE_FF(dj.fs, res);
jksoft 0:5975af170e43 2771 }
jksoft 0:5975af170e43 2772
jksoft 0:5975af170e43 2773
jksoft 0:5975af170e43 2774 #if _FS_RPATH >= 2
jksoft 0:5975af170e43 2775 FRESULT f_getcwd (
jksoft 0:5975af170e43 2776 TCHAR *path, /* Pointer to the directory path */
jksoft 0:5975af170e43 2777 UINT sz_path /* Size of path */
jksoft 0:5975af170e43 2778 )
jksoft 0:5975af170e43 2779 {
jksoft 0:5975af170e43 2780 FRESULT res;
jksoft 0:5975af170e43 2781 DIR dj;
jksoft 0:5975af170e43 2782 UINT i, n;
jksoft 0:5975af170e43 2783 DWORD ccl;
jksoft 0:5975af170e43 2784 TCHAR *tp;
jksoft 0:5975af170e43 2785 FILINFO fno;
jksoft 0:5975af170e43 2786 DEF_NAMEBUF;
jksoft 0:5975af170e43 2787
jksoft 0:5975af170e43 2788
jksoft 0:5975af170e43 2789 *path = 0;
jksoft 0:5975af170e43 2790 res = chk_mounted((const TCHAR**)&path, &dj.fs, 0); /* Get current volume */
jksoft 0:5975af170e43 2791 if (res == FR_OK) {
jksoft 0:5975af170e43 2792 INIT_BUF(dj);
jksoft 0:5975af170e43 2793 i = sz_path; /* Bottom of buffer (dir stack base) */
jksoft 0:5975af170e43 2794 dj.sclust = dj.fs->cdir; /* Start to follow upper dir from current dir */
jksoft 0:5975af170e43 2795 while ((ccl = dj.sclust) != 0) { /* Repeat while current dir is a sub-dir */
jksoft 0:5975af170e43 2796 res = dir_sdi(&dj, 1); /* Get parent dir */
jksoft 0:5975af170e43 2797 if (res != FR_OK) break;
jksoft 0:5975af170e43 2798 res = dir_read(&dj);
jksoft 0:5975af170e43 2799 if (res != FR_OK) break;
jksoft 0:5975af170e43 2800 dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent dir */
jksoft 0:5975af170e43 2801 res = dir_sdi(&dj, 0);
jksoft 0:5975af170e43 2802 if (res != FR_OK) break;
jksoft 0:5975af170e43 2803 do { /* Find the entry links to the child dir */
jksoft 0:5975af170e43 2804 res = dir_read(&dj);
jksoft 0:5975af170e43 2805 if (res != FR_OK) break;
jksoft 0:5975af170e43 2806 if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
jksoft 0:5975af170e43 2807 res = dir_next(&dj, 0);
jksoft 0:5975af170e43 2808 } while (res == FR_OK);
jksoft 0:5975af170e43 2809 if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
jksoft 0:5975af170e43 2810 if (res != FR_OK) break;
jksoft 0:5975af170e43 2811 #if _USE_LFN
jksoft 0:5975af170e43 2812 fno.lfname = path;
jksoft 0:5975af170e43 2813 fno.lfsize = i;
jksoft 0:5975af170e43 2814 #endif
jksoft 0:5975af170e43 2815 get_fileinfo(&dj, &fno); /* Get the dir name and push it to the buffer */
jksoft 0:5975af170e43 2816 tp = fno.fname;
jksoft 0:5975af170e43 2817 if (_USE_LFN && *path) tp = path;
jksoft 0:5975af170e43 2818 for (n = 0; tp[n]; n++) ;
jksoft 0:5975af170e43 2819 if (i < n + 3) {
jksoft 0:5975af170e43 2820 res = FR_NOT_ENOUGH_CORE; break;
jksoft 0:5975af170e43 2821 }
jksoft 0:5975af170e43 2822 while (n) path[--i] = tp[--n];
jksoft 0:5975af170e43 2823 path[--i] = '/';
jksoft 0:5975af170e43 2824 }
jksoft 0:5975af170e43 2825 tp = path;
jksoft 0:5975af170e43 2826 if (res == FR_OK) {
jksoft 0:5975af170e43 2827 *tp++ = '0' + CurrVol; /* Put drive number */
jksoft 0:5975af170e43 2828 *tp++ = ':';
jksoft 0:5975af170e43 2829 if (i == sz_path) { /* Root-dir */
jksoft 0:5975af170e43 2830 *tp++ = '/';
jksoft 0:5975af170e43 2831 } else { /* Sub-dir */
jksoft 0:5975af170e43 2832 do /* Add stacked path str */
jksoft 0:5975af170e43 2833 *tp++ = path[i++];
jksoft 0:5975af170e43 2834 while (i < sz_path);
jksoft 0:5975af170e43 2835 }
jksoft 0:5975af170e43 2836 }
jksoft 0:5975af170e43 2837 *tp = 0;
jksoft 0:5975af170e43 2838 FREE_BUF();
jksoft 0:5975af170e43 2839 }
jksoft 0:5975af170e43 2840
jksoft 0:5975af170e43 2841 LEAVE_FF(dj.fs, res);
jksoft 0:5975af170e43 2842 }
jksoft 0:5975af170e43 2843 #endif /* _FS_RPATH >= 2 */
jksoft 0:5975af170e43 2844 #endif /* _FS_RPATH >= 1 */
jksoft 0:5975af170e43 2845
jksoft 0:5975af170e43 2846
jksoft 0:5975af170e43 2847
jksoft 0:5975af170e43 2848 #if _FS_MINIMIZE <= 2
jksoft 0:5975af170e43 2849 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2850 /* Seek File R/W Pointer */
jksoft 0:5975af170e43 2851 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 2852
jksoft 0:5975af170e43 2853 FRESULT f_lseek (
jksoft 0:5975af170e43 2854 FIL *fp, /* Pointer to the file object */
jksoft 0:5975af170e43 2855 DWORD ofs /* File pointer from top of file */
jksoft 0:5975af170e43 2856 )
jksoft 0:5975af170e43 2857 {
jksoft 0:5975af170e43 2858 FRESULT res;
jksoft 0:5975af170e43 2859
jksoft 0:5975af170e43 2860
jksoft 0:5975af170e43 2861 res = validate(fp); /* Check validity of the object */
jksoft 0:5975af170e43 2862 if (res != FR_OK) LEAVE_FF(fp->fs, res);
jksoft 0:5975af170e43 2863 if (fp->flag & FA__ERROR) /* Check abort flag */
jksoft 0:5975af170e43 2864 LEAVE_FF(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 2865
jksoft 0:5975af170e43 2866 #if _USE_FASTSEEK
jksoft 0:5975af170e43 2867 if (fp->cltbl) { /* Fast seek */
jksoft 0:5975af170e43 2868 DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
jksoft 0:5975af170e43 2869
jksoft 0:5975af170e43 2870 if (ofs == CREATE_LINKMAP) { /* Create CLMT */
jksoft 0:5975af170e43 2871 tbl = fp->cltbl;
jksoft 0:5975af170e43 2872 tlen = *tbl++; ulen = 2; /* Given table size and required table size */
jksoft 0:5975af170e43 2873 cl = fp->sclust; /* Top of the chain */
jksoft 0:5975af170e43 2874 if (cl) {
jksoft 0:5975af170e43 2875 do {
jksoft 0:5975af170e43 2876 /* Get a fragment */
jksoft 0:5975af170e43 2877 tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
jksoft 0:5975af170e43 2878 do {
jksoft 0:5975af170e43 2879 pcl = cl; ncl++;
jksoft 0:5975af170e43 2880 cl = get_fat(fp->fs, cl);
jksoft 0:5975af170e43 2881 if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 2882 if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2883 } while (cl == pcl + 1);
jksoft 0:5975af170e43 2884 if (ulen <= tlen) { /* Store the length and top of the fragment */
jksoft 0:5975af170e43 2885 *tbl++ = ncl; *tbl++ = tcl;
jksoft 0:5975af170e43 2886 }
jksoft 0:5975af170e43 2887 } while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
jksoft 0:5975af170e43 2888 }
jksoft 0:5975af170e43 2889 *fp->cltbl = ulen; /* Number of items used */
jksoft 0:5975af170e43 2890 if (ulen <= tlen)
jksoft 0:5975af170e43 2891 *tbl = 0; /* Terminate table */
jksoft 0:5975af170e43 2892 else
jksoft 0:5975af170e43 2893 res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
jksoft 0:5975af170e43 2894
jksoft 0:5975af170e43 2895 } else { /* Fast seek */
jksoft 0:5975af170e43 2896 if (ofs > fp->fsize) /* Clip offset at the file size */
jksoft 0:5975af170e43 2897 ofs = fp->fsize;
jksoft 0:5975af170e43 2898 fp->fptr = ofs; /* Set file pointer */
jksoft 0:5975af170e43 2899 if (ofs) {
jksoft 0:5975af170e43 2900 fp->clust = clmt_clust(fp, ofs - 1);
jksoft 0:5975af170e43 2901 dsc = clust2sect(fp->fs, fp->clust);
jksoft 0:5975af170e43 2902 if (!dsc) ABORT(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 2903 dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
jksoft 0:5975af170e43 2904 if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
jksoft 0:5975af170e43 2905 #if !_FS_TINY
jksoft 0:5975af170e43 2906 #if !_FS_READONLY
jksoft 0:5975af170e43 2907 if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
jksoft 0:5975af170e43 2908 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
jksoft 0:5975af170e43 2909 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2910 fp->flag &= ~FA__DIRTY;
jksoft 0:5975af170e43 2911 }
jksoft 0:5975af170e43 2912 #endif
jksoft 0:5975af170e43 2913 if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
jksoft 0:5975af170e43 2914 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2915 #endif
jksoft 0:5975af170e43 2916 fp->dsect = dsc;
jksoft 0:5975af170e43 2917 }
jksoft 0:5975af170e43 2918 }
jksoft 0:5975af170e43 2919 }
jksoft 0:5975af170e43 2920 } else
jksoft 0:5975af170e43 2921 #endif
jksoft 0:5975af170e43 2922
jksoft 0:5975af170e43 2923 /* Normal Seek */
jksoft 0:5975af170e43 2924 {
jksoft 0:5975af170e43 2925 DWORD clst, bcs, nsect, ifptr;
jksoft 0:5975af170e43 2926
jksoft 0:5975af170e43 2927 if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
jksoft 0:5975af170e43 2928 #if !_FS_READONLY
jksoft 0:5975af170e43 2929 && !(fp->flag & FA_WRITE)
jksoft 0:5975af170e43 2930 #endif
jksoft 0:5975af170e43 2931 ) ofs = fp->fsize;
jksoft 0:5975af170e43 2932
jksoft 0:5975af170e43 2933 ifptr = fp->fptr;
jksoft 0:5975af170e43 2934 fp->fptr = nsect = 0;
jksoft 0:5975af170e43 2935 if (ofs) {
jksoft 0:5975af170e43 2936 bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
jksoft 0:5975af170e43 2937 if (ifptr > 0 &&
jksoft 0:5975af170e43 2938 (ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
jksoft 0:5975af170e43 2939 fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
jksoft 0:5975af170e43 2940 ofs -= fp->fptr;
jksoft 0:5975af170e43 2941 clst = fp->clust;
jksoft 0:5975af170e43 2942 } else { /* When seek to back cluster, */
jksoft 0:5975af170e43 2943 clst = fp->sclust; /* start from the first cluster */
jksoft 0:5975af170e43 2944 #if !_FS_READONLY
jksoft 0:5975af170e43 2945 if (clst == 0) { /* If no cluster chain, create a new chain */
jksoft 0:5975af170e43 2946 clst = create_chain(fp->fs, 0);
jksoft 0:5975af170e43 2947 if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 2948 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2949 fp->sclust = clst;
jksoft 0:5975af170e43 2950 }
jksoft 0:5975af170e43 2951 #endif
jksoft 0:5975af170e43 2952 fp->clust = clst;
jksoft 0:5975af170e43 2953 }
jksoft 0:5975af170e43 2954 if (clst != 0) {
jksoft 0:5975af170e43 2955 while (ofs > bcs) { /* Cluster following loop */
jksoft 0:5975af170e43 2956 #if !_FS_READONLY
jksoft 0:5975af170e43 2957 if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
jksoft 0:5975af170e43 2958 clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
jksoft 0:5975af170e43 2959 if (clst == 0) { /* When disk gets full, clip file size */
jksoft 0:5975af170e43 2960 ofs = bcs; break;
jksoft 0:5975af170e43 2961 }
jksoft 0:5975af170e43 2962 } else
jksoft 0:5975af170e43 2963 #endif
jksoft 0:5975af170e43 2964 clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
jksoft 0:5975af170e43 2965 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2966 if (clst <= 1 || clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 2967 fp->clust = clst;
jksoft 0:5975af170e43 2968 fp->fptr += bcs;
jksoft 0:5975af170e43 2969 ofs -= bcs;
jksoft 0:5975af170e43 2970 }
jksoft 0:5975af170e43 2971 fp->fptr += ofs;
jksoft 0:5975af170e43 2972 if (ofs % SS(fp->fs)) {
jksoft 0:5975af170e43 2973 nsect = clust2sect(fp->fs, clst); /* Current sector */
jksoft 0:5975af170e43 2974 if (!nsect) ABORT(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 2975 nsect += ofs / SS(fp->fs);
jksoft 0:5975af170e43 2976 }
jksoft 0:5975af170e43 2977 }
jksoft 0:5975af170e43 2978 }
jksoft 0:5975af170e43 2979 if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
jksoft 0:5975af170e43 2980 #if !_FS_TINY
jksoft 0:5975af170e43 2981 #if !_FS_READONLY
jksoft 0:5975af170e43 2982 if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
jksoft 0:5975af170e43 2983 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
jksoft 0:5975af170e43 2984 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2985 fp->flag &= ~FA__DIRTY;
jksoft 0:5975af170e43 2986 }
jksoft 0:5975af170e43 2987 #endif
jksoft 0:5975af170e43 2988 if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
jksoft 0:5975af170e43 2989 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 2990 #endif
jksoft 0:5975af170e43 2991 fp->dsect = nsect;
jksoft 0:5975af170e43 2992 }
jksoft 0:5975af170e43 2993 #if !_FS_READONLY
jksoft 0:5975af170e43 2994 if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
jksoft 0:5975af170e43 2995 fp->fsize = fp->fptr;
jksoft 0:5975af170e43 2996 fp->flag |= FA__WRITTEN;
jksoft 0:5975af170e43 2997 }
jksoft 0:5975af170e43 2998 #endif
jksoft 0:5975af170e43 2999 }
jksoft 0:5975af170e43 3000
jksoft 0:5975af170e43 3001 LEAVE_FF(fp->fs, res);
jksoft 0:5975af170e43 3002 }
jksoft 0:5975af170e43 3003
jksoft 0:5975af170e43 3004
jksoft 0:5975af170e43 3005
jksoft 0:5975af170e43 3006 #if _FS_MINIMIZE <= 1
jksoft 0:5975af170e43 3007 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3008 /* Create a Directory Object */
jksoft 0:5975af170e43 3009 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3010
jksoft 0:5975af170e43 3011 FRESULT f_opendir (
jksoft 0:5975af170e43 3012 FATFS_DIR *dj, /* Pointer to directory object to create */
jksoft 0:5975af170e43 3013 const TCHAR *path /* Pointer to the directory path */
jksoft 0:5975af170e43 3014 )
jksoft 0:5975af170e43 3015 {
jksoft 0:5975af170e43 3016 FRESULT res;
jksoft 0:5975af170e43 3017 FATFS *fs;
jksoft 0:5975af170e43 3018 DEF_NAMEBUF;
jksoft 0:5975af170e43 3019
jksoft 0:5975af170e43 3020
jksoft 0:5975af170e43 3021 if (!dj) return FR_INVALID_OBJECT;
jksoft 0:5975af170e43 3022
jksoft 0:5975af170e43 3023 res = chk_mounted(&path, &dj->fs, 0);
jksoft 0:5975af170e43 3024 fs = dj->fs;
jksoft 0:5975af170e43 3025 if (res == FR_OK) {
jksoft 0:5975af170e43 3026 INIT_BUF(*dj);
jksoft 0:5975af170e43 3027 res = follow_path(dj, path); /* Follow the path to the directory */
jksoft 0:5975af170e43 3028 FREE_BUF();
jksoft 0:5975af170e43 3029 if (res == FR_OK) { /* Follow completed */
jksoft 0:5975af170e43 3030 if (dj->dir) { /* It is not the root dir */
jksoft 0:5975af170e43 3031 if (dj->dir[DIR_Attr] & AM_DIR) { /* The object is a directory */
jksoft 0:5975af170e43 3032 dj->sclust = ld_clust(fs, dj->dir);
jksoft 0:5975af170e43 3033 } else { /* The object is not a directory */
jksoft 0:5975af170e43 3034 res = FR_NO_PATH;
jksoft 0:5975af170e43 3035 }
jksoft 0:5975af170e43 3036 }
jksoft 0:5975af170e43 3037 if (res == FR_OK) {
jksoft 0:5975af170e43 3038 dj->id = fs->id;
jksoft 0:5975af170e43 3039 res = dir_sdi(dj, 0); /* Rewind dir */
jksoft 0:5975af170e43 3040 }
jksoft 0:5975af170e43 3041 }
jksoft 0:5975af170e43 3042 if (res == FR_NO_FILE) res = FR_NO_PATH;
jksoft 0:5975af170e43 3043 if (res != FR_OK) dj->fs = 0; /* Invalidate the dir object if function faild */
jksoft 0:5975af170e43 3044 } else {
jksoft 0:5975af170e43 3045 dj->fs = 0;
jksoft 0:5975af170e43 3046 }
jksoft 0:5975af170e43 3047
jksoft 0:5975af170e43 3048 LEAVE_FF(fs, res);
jksoft 0:5975af170e43 3049 }
jksoft 0:5975af170e43 3050
jksoft 0:5975af170e43 3051
jksoft 0:5975af170e43 3052
jksoft 0:5975af170e43 3053
jksoft 0:5975af170e43 3054 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3055 /* Read Directory Entry in Sequence */
jksoft 0:5975af170e43 3056 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3057
jksoft 0:5975af170e43 3058 FRESULT f_readdir (
jksoft 0:5975af170e43 3059 FATFS_DIR *dj, /* Pointer to the open directory object */
jksoft 0:5975af170e43 3060 FILINFO *fno /* Pointer to file information to return */
jksoft 0:5975af170e43 3061 )
jksoft 0:5975af170e43 3062 {
jksoft 0:5975af170e43 3063 FRESULT res;
jksoft 0:5975af170e43 3064 DEF_NAMEBUF;
jksoft 0:5975af170e43 3065
jksoft 0:5975af170e43 3066
jksoft 0:5975af170e43 3067 res = validate(dj); /* Check validity of the object */
jksoft 0:5975af170e43 3068 if (res == FR_OK) {
jksoft 0:5975af170e43 3069 if (!fno) {
jksoft 0:5975af170e43 3070 res = dir_sdi(dj, 0); /* Rewind the directory object */
jksoft 0:5975af170e43 3071 } else {
jksoft 0:5975af170e43 3072 INIT_BUF(*dj);
jksoft 0:5975af170e43 3073 res = dir_read(dj); /* Read an directory item */
jksoft 0:5975af170e43 3074 if (res == FR_NO_FILE) { /* Reached end of dir */
jksoft 0:5975af170e43 3075 dj->sect = 0;
jksoft 0:5975af170e43 3076 res = FR_OK;
jksoft 0:5975af170e43 3077 }
jksoft 0:5975af170e43 3078 if (res == FR_OK) { /* A valid entry is found */
jksoft 0:5975af170e43 3079 get_fileinfo(dj, fno); /* Get the object information */
jksoft 0:5975af170e43 3080 res = dir_next(dj, 0); /* Increment index for next */
jksoft 0:5975af170e43 3081 if (res == FR_NO_FILE) {
jksoft 0:5975af170e43 3082 dj->sect = 0;
jksoft 0:5975af170e43 3083 res = FR_OK;
jksoft 0:5975af170e43 3084 }
jksoft 0:5975af170e43 3085 }
jksoft 0:5975af170e43 3086 FREE_BUF();
jksoft 0:5975af170e43 3087 }
jksoft 0:5975af170e43 3088 }
jksoft 0:5975af170e43 3089
jksoft 0:5975af170e43 3090 LEAVE_FF(dj->fs, res);
jksoft 0:5975af170e43 3091 }
jksoft 0:5975af170e43 3092
jksoft 0:5975af170e43 3093
jksoft 0:5975af170e43 3094
jksoft 0:5975af170e43 3095 #if _FS_MINIMIZE == 0
jksoft 0:5975af170e43 3096 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3097 /* Get File Status */
jksoft 0:5975af170e43 3098 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3099
jksoft 0:5975af170e43 3100 FRESULT f_stat (
jksoft 0:5975af170e43 3101 const TCHAR *path, /* Pointer to the file path */
jksoft 0:5975af170e43 3102 FILINFO *fno /* Pointer to file information to return */
jksoft 0:5975af170e43 3103 )
jksoft 0:5975af170e43 3104 {
jksoft 0:5975af170e43 3105 FRESULT res;
jksoft 0:5975af170e43 3106 FATFS_DIR dj;
jksoft 0:5975af170e43 3107 DEF_NAMEBUF;
jksoft 0:5975af170e43 3108
jksoft 0:5975af170e43 3109
jksoft 0:5975af170e43 3110 res = chk_mounted(&path, &dj.fs, 0);
jksoft 0:5975af170e43 3111 if (res == FR_OK) {
jksoft 0:5975af170e43 3112 INIT_BUF(dj);
jksoft 0:5975af170e43 3113 res = follow_path(&dj, path); /* Follow the file path */
jksoft 0:5975af170e43 3114 if (res == FR_OK) { /* Follow completed */
jksoft 0:5975af170e43 3115 if (dj.dir) /* Found an object */
jksoft 0:5975af170e43 3116 get_fileinfo(&dj, fno);
jksoft 0:5975af170e43 3117 else /* It is root dir */
jksoft 0:5975af170e43 3118 res = FR_INVALID_NAME;
jksoft 0:5975af170e43 3119 }
jksoft 0:5975af170e43 3120 FREE_BUF();
jksoft 0:5975af170e43 3121 }
jksoft 0:5975af170e43 3122
jksoft 0:5975af170e43 3123 LEAVE_FF(dj.fs, res);
jksoft 0:5975af170e43 3124 }
jksoft 0:5975af170e43 3125
jksoft 0:5975af170e43 3126
jksoft 0:5975af170e43 3127
jksoft 0:5975af170e43 3128 #if !_FS_READONLY
jksoft 0:5975af170e43 3129 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3130 /* Get Number of Free Clusters */
jksoft 0:5975af170e43 3131 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3132
jksoft 0:5975af170e43 3133 FRESULT f_getfree (
jksoft 0:5975af170e43 3134 const TCHAR *path, /* Pointer to the logical drive number (root dir) */
jksoft 0:5975af170e43 3135 DWORD *nclst, /* Pointer to the variable to return number of free clusters */
jksoft 0:5975af170e43 3136 FATFS **fatfs /* Pointer to pointer to corresponding file system object to return */
jksoft 0:5975af170e43 3137 )
jksoft 0:5975af170e43 3138 {
jksoft 0:5975af170e43 3139 FRESULT res;
jksoft 0:5975af170e43 3140 FATFS *fs;
jksoft 0:5975af170e43 3141 DWORD n, clst, sect, stat;
jksoft 0:5975af170e43 3142 UINT i;
jksoft 0:5975af170e43 3143 BYTE fat, *p;
jksoft 0:5975af170e43 3144
jksoft 0:5975af170e43 3145
jksoft 0:5975af170e43 3146 /* Get drive number */
jksoft 0:5975af170e43 3147 res = chk_mounted(&path, fatfs, 0);
jksoft 0:5975af170e43 3148 fs = *fatfs;
jksoft 0:5975af170e43 3149 if (res == FR_OK) {
jksoft 0:5975af170e43 3150 /* If free_clust is valid, return it without full cluster scan */
jksoft 0:5975af170e43 3151 if (fs->free_clust <= fs->n_fatent - 2) {
jksoft 0:5975af170e43 3152 *nclst = fs->free_clust;
jksoft 0:5975af170e43 3153 } else {
jksoft 0:5975af170e43 3154 /* Get number of free clusters */
jksoft 0:5975af170e43 3155 fat = fs->fs_type;
jksoft 0:5975af170e43 3156 n = 0;
jksoft 0:5975af170e43 3157 if (fat == FS_FAT12) {
jksoft 0:5975af170e43 3158 clst = 2;
jksoft 0:5975af170e43 3159 do {
jksoft 0:5975af170e43 3160 stat = get_fat(fs, clst);
jksoft 0:5975af170e43 3161 if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
jksoft 0:5975af170e43 3162 if (stat == 1) { res = FR_INT_ERR; break; }
jksoft 0:5975af170e43 3163 if (stat == 0) n++;
jksoft 0:5975af170e43 3164 } while (++clst < fs->n_fatent);
jksoft 0:5975af170e43 3165 } else {
jksoft 0:5975af170e43 3166 clst = fs->n_fatent;
jksoft 0:5975af170e43 3167 sect = fs->fatbase;
jksoft 0:5975af170e43 3168 i = 0; p = 0;
jksoft 0:5975af170e43 3169 do {
jksoft 0:5975af170e43 3170 if (!i) {
jksoft 0:5975af170e43 3171 res = move_window(fs, sect++);
jksoft 0:5975af170e43 3172 if (res != FR_OK) break;
jksoft 0:5975af170e43 3173 p = fs->win;
jksoft 0:5975af170e43 3174 i = SS(fs);
jksoft 0:5975af170e43 3175 }
jksoft 0:5975af170e43 3176 if (fat == FS_FAT16) {
jksoft 0:5975af170e43 3177 if (LD_WORD(p) == 0) n++;
jksoft 0:5975af170e43 3178 p += 2; i -= 2;
jksoft 0:5975af170e43 3179 } else {
jksoft 0:5975af170e43 3180 if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
jksoft 0:5975af170e43 3181 p += 4; i -= 4;
jksoft 0:5975af170e43 3182 }
jksoft 0:5975af170e43 3183 } while (--clst);
jksoft 0:5975af170e43 3184 }
jksoft 0:5975af170e43 3185 fs->free_clust = n;
jksoft 0:5975af170e43 3186 if (fat == FS_FAT32) fs->fsi_flag = 1;
jksoft 0:5975af170e43 3187 *nclst = n;
jksoft 0:5975af170e43 3188 }
jksoft 0:5975af170e43 3189 }
jksoft 0:5975af170e43 3190 LEAVE_FF(fs, res);
jksoft 0:5975af170e43 3191 }
jksoft 0:5975af170e43 3192
jksoft 0:5975af170e43 3193
jksoft 0:5975af170e43 3194
jksoft 0:5975af170e43 3195
jksoft 0:5975af170e43 3196 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3197 /* Truncate File */
jksoft 0:5975af170e43 3198 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3199
jksoft 0:5975af170e43 3200 FRESULT f_truncate (
jksoft 0:5975af170e43 3201 FIL *fp /* Pointer to the file object */
jksoft 0:5975af170e43 3202 )
jksoft 0:5975af170e43 3203 {
jksoft 0:5975af170e43 3204 FRESULT res;
jksoft 0:5975af170e43 3205 DWORD ncl;
jksoft 0:5975af170e43 3206
jksoft 0:5975af170e43 3207
jksoft 0:5975af170e43 3208 if (!fp) return FR_INVALID_OBJECT;
jksoft 0:5975af170e43 3209
jksoft 0:5975af170e43 3210 res = validate(fp); /* Check validity of the object */
jksoft 0:5975af170e43 3211 if (res == FR_OK) {
jksoft 0:5975af170e43 3212 if (fp->flag & FA__ERROR) { /* Check abort flag */
jksoft 0:5975af170e43 3213 res = FR_INT_ERR;
jksoft 0:5975af170e43 3214 } else {
jksoft 0:5975af170e43 3215 if (!(fp->flag & FA_WRITE)) /* Check access mode */
jksoft 0:5975af170e43 3216 res = FR_DENIED;
jksoft 0:5975af170e43 3217 }
jksoft 0:5975af170e43 3218 }
jksoft 0:5975af170e43 3219 if (res == FR_OK) {
jksoft 0:5975af170e43 3220 if (fp->fsize > fp->fptr) {
jksoft 0:5975af170e43 3221 fp->fsize = fp->fptr; /* Set file size to current R/W point */
jksoft 0:5975af170e43 3222 fp->flag |= FA__WRITTEN;
jksoft 0:5975af170e43 3223 if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
jksoft 0:5975af170e43 3224 res = remove_chain(fp->fs, fp->sclust);
jksoft 0:5975af170e43 3225 fp->sclust = 0;
jksoft 0:5975af170e43 3226 } else { /* When truncate a part of the file, remove remaining clusters */
jksoft 0:5975af170e43 3227 ncl = get_fat(fp->fs, fp->clust);
jksoft 0:5975af170e43 3228 res = FR_OK;
jksoft 0:5975af170e43 3229 if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
jksoft 0:5975af170e43 3230 if (ncl == 1) res = FR_INT_ERR;
jksoft 0:5975af170e43 3231 if (res == FR_OK && ncl < fp->fs->n_fatent) {
jksoft 0:5975af170e43 3232 res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
jksoft 0:5975af170e43 3233 if (res == FR_OK) res = remove_chain(fp->fs, ncl);
jksoft 0:5975af170e43 3234 }
jksoft 0:5975af170e43 3235 }
jksoft 0:5975af170e43 3236 }
jksoft 0:5975af170e43 3237 if (res != FR_OK) fp->flag |= FA__ERROR;
jksoft 0:5975af170e43 3238 }
jksoft 0:5975af170e43 3239
jksoft 0:5975af170e43 3240 LEAVE_FF(fp->fs, res);
jksoft 0:5975af170e43 3241 }
jksoft 0:5975af170e43 3242
jksoft 0:5975af170e43 3243
jksoft 0:5975af170e43 3244
jksoft 0:5975af170e43 3245
jksoft 0:5975af170e43 3246 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3247 /* Delete a File or Directory */
jksoft 0:5975af170e43 3248 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3249
jksoft 0:5975af170e43 3250 FRESULT f_unlink (
jksoft 0:5975af170e43 3251 const TCHAR *path /* Pointer to the file or directory path */
jksoft 0:5975af170e43 3252 )
jksoft 0:5975af170e43 3253 {
jksoft 0:5975af170e43 3254 FRESULT res;
jksoft 0:5975af170e43 3255 FATFS_DIR dj, sdj;
jksoft 0:5975af170e43 3256 BYTE *dir;
jksoft 0:5975af170e43 3257 DWORD dclst;
jksoft 0:5975af170e43 3258 DEF_NAMEBUF;
jksoft 0:5975af170e43 3259
jksoft 0:5975af170e43 3260
jksoft 0:5975af170e43 3261 res = chk_mounted(&path, &dj.fs, 1);
jksoft 0:5975af170e43 3262 if (res == FR_OK) {
jksoft 0:5975af170e43 3263 INIT_BUF(dj);
jksoft 0:5975af170e43 3264 res = follow_path(&dj, path); /* Follow the file path */
jksoft 0:5975af170e43 3265 if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
jksoft 0:5975af170e43 3266 res = FR_INVALID_NAME; /* Cannot remove dot entry */
jksoft 0:5975af170e43 3267 #if _FS_LOCK
jksoft 0:5975af170e43 3268 if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open file */
jksoft 0:5975af170e43 3269 #endif
jksoft 0:5975af170e43 3270 if (res == FR_OK) { /* The object is accessible */
jksoft 0:5975af170e43 3271 dir = dj.dir;
jksoft 0:5975af170e43 3272 if (!dir) {
jksoft 0:5975af170e43 3273 res = FR_INVALID_NAME; /* Cannot remove the start directory */
jksoft 0:5975af170e43 3274 } else {
jksoft 0:5975af170e43 3275 if (dir[DIR_Attr] & AM_RDO)
jksoft 0:5975af170e43 3276 res = FR_DENIED; /* Cannot remove R/O object */
jksoft 0:5975af170e43 3277 }
jksoft 0:5975af170e43 3278 dclst = ld_clust(dj.fs, dir);
jksoft 0:5975af170e43 3279 if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-dir? */
jksoft 0:5975af170e43 3280 if (dclst < 2) {
jksoft 0:5975af170e43 3281 res = FR_INT_ERR;
jksoft 0:5975af170e43 3282 } else {
jksoft 0:5975af170e43 3283 mem_cpy(&sdj, &dj, sizeof (FATFS_DIR)); /* Check if the sub-dir is empty or not */
jksoft 0:5975af170e43 3284 sdj.sclust = dclst;
jksoft 0:5975af170e43 3285 res = dir_sdi(&sdj, 2); /* Exclude dot entries */
jksoft 0:5975af170e43 3286 if (res == FR_OK) {
jksoft 0:5975af170e43 3287 res = dir_read(&sdj);
jksoft 0:5975af170e43 3288 if (res == FR_OK /* Not empty dir */
jksoft 0:5975af170e43 3289 #if _FS_RPATH
jksoft 0:5975af170e43 3290 || dclst == dj.fs->cdir /* Current dir */
jksoft 0:5975af170e43 3291 #endif
jksoft 0:5975af170e43 3292 ) res = FR_DENIED;
jksoft 0:5975af170e43 3293 if (res == FR_NO_FILE) res = FR_OK; /* Empty */
jksoft 0:5975af170e43 3294 }
jksoft 0:5975af170e43 3295 }
jksoft 0:5975af170e43 3296 }
jksoft 0:5975af170e43 3297 if (res == FR_OK) {
jksoft 0:5975af170e43 3298 res = dir_remove(&dj); /* Remove the directory entry */
jksoft 0:5975af170e43 3299 if (res == FR_OK) {
jksoft 0:5975af170e43 3300 if (dclst) /* Remove the cluster chain if exist */
jksoft 0:5975af170e43 3301 res = remove_chain(dj.fs, dclst);
jksoft 0:5975af170e43 3302 if (res == FR_OK) res = sync(dj.fs);
jksoft 0:5975af170e43 3303 }
jksoft 0:5975af170e43 3304 }
jksoft 0:5975af170e43 3305 }
jksoft 0:5975af170e43 3306 FREE_BUF();
jksoft 0:5975af170e43 3307 }
jksoft 0:5975af170e43 3308 LEAVE_FF(dj.fs, res);
jksoft 0:5975af170e43 3309 }
jksoft 0:5975af170e43 3310
jksoft 0:5975af170e43 3311
jksoft 0:5975af170e43 3312
jksoft 0:5975af170e43 3313
jksoft 0:5975af170e43 3314 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3315 /* Create a Directory */
jksoft 0:5975af170e43 3316 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3317
jksoft 0:5975af170e43 3318 FRESULT f_mkdir (
jksoft 0:5975af170e43 3319 const TCHAR *path /* Pointer to the directory path */
jksoft 0:5975af170e43 3320 )
jksoft 0:5975af170e43 3321 {
jksoft 0:5975af170e43 3322 FRESULT res;
jksoft 0:5975af170e43 3323 FATFS_DIR dj;
jksoft 0:5975af170e43 3324 BYTE *dir, n;
jksoft 0:5975af170e43 3325 DWORD dsc, dcl, pcl, tim = get_fattime();
jksoft 0:5975af170e43 3326 DEF_NAMEBUF;
jksoft 0:5975af170e43 3327
jksoft 0:5975af170e43 3328
jksoft 0:5975af170e43 3329 res = chk_mounted(&path, &dj.fs, 1);
jksoft 0:5975af170e43 3330 if (res == FR_OK) {
jksoft 0:5975af170e43 3331 INIT_BUF(dj);
jksoft 0:5975af170e43 3332 res = follow_path(&dj, path); /* Follow the file path */
jksoft 0:5975af170e43 3333 if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
jksoft 0:5975af170e43 3334 if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
jksoft 0:5975af170e43 3335 res = FR_INVALID_NAME;
jksoft 0:5975af170e43 3336 if (res == FR_NO_FILE) { /* Can create a new directory */
jksoft 0:5975af170e43 3337 dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
jksoft 0:5975af170e43 3338 res = FR_OK;
jksoft 0:5975af170e43 3339 if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
jksoft 0:5975af170e43 3340 if (dcl == 1) res = FR_INT_ERR;
jksoft 0:5975af170e43 3341 if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
jksoft 0:5975af170e43 3342 if (res == FR_OK) /* Flush FAT */
jksoft 0:5975af170e43 3343 res = move_window(dj.fs, 0);
jksoft 0:5975af170e43 3344 if (res == FR_OK) { /* Initialize the new directory table */
jksoft 0:5975af170e43 3345 dsc = clust2sect(dj.fs, dcl);
jksoft 0:5975af170e43 3346 dir = dj.fs->win;
jksoft 0:5975af170e43 3347 mem_set(dir, 0, SS(dj.fs));
jksoft 0:5975af170e43 3348 mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */
jksoft 0:5975af170e43 3349 dir[DIR_Name] = '.';
jksoft 0:5975af170e43 3350 dir[DIR_Attr] = AM_DIR;
jksoft 0:5975af170e43 3351 ST_DWORD(dir+DIR_WrtTime, tim);
jksoft 0:5975af170e43 3352 st_clust(dir, dcl);
jksoft 0:5975af170e43 3353 mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
jksoft 0:5975af170e43 3354 dir[33] = '.'; pcl = dj.sclust;
jksoft 0:5975af170e43 3355 if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
jksoft 0:5975af170e43 3356 pcl = 0;
jksoft 0:5975af170e43 3357 st_clust(dir+SZ_DIR, pcl);
jksoft 0:5975af170e43 3358 for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
jksoft 0:5975af170e43 3359 dj.fs->winsect = dsc++;
jksoft 0:5975af170e43 3360 dj.fs->wflag = 1;
jksoft 0:5975af170e43 3361 res = move_window(dj.fs, 0);
jksoft 0:5975af170e43 3362 if (res != FR_OK) break;
jksoft 0:5975af170e43 3363 mem_set(dir, 0, SS(dj.fs));
jksoft 0:5975af170e43 3364 }
jksoft 0:5975af170e43 3365 }
jksoft 0:5975af170e43 3366 if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
jksoft 0:5975af170e43 3367 if (res != FR_OK) {
jksoft 0:5975af170e43 3368 remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
jksoft 0:5975af170e43 3369 } else {
jksoft 0:5975af170e43 3370 dir = dj.dir;
jksoft 0:5975af170e43 3371 dir[DIR_Attr] = AM_DIR; /* Attribute */
jksoft 0:5975af170e43 3372 ST_DWORD(dir+DIR_WrtTime, tim); /* Created time */
jksoft 0:5975af170e43 3373 st_clust(dir, dcl); /* Table start cluster */
jksoft 0:5975af170e43 3374 dj.fs->wflag = 1;
jksoft 0:5975af170e43 3375 res = sync(dj.fs);
jksoft 0:5975af170e43 3376 }
jksoft 0:5975af170e43 3377 }
jksoft 0:5975af170e43 3378 FREE_BUF();
jksoft 0:5975af170e43 3379 }
jksoft 0:5975af170e43 3380
jksoft 0:5975af170e43 3381 LEAVE_FF(dj.fs, res);
jksoft 0:5975af170e43 3382 }
jksoft 0:5975af170e43 3383
jksoft 0:5975af170e43 3384
jksoft 0:5975af170e43 3385
jksoft 0:5975af170e43 3386
jksoft 0:5975af170e43 3387 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3388 /* Change Attribute */
jksoft 0:5975af170e43 3389 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3390
jksoft 0:5975af170e43 3391 FRESULT f_chmod (
jksoft 0:5975af170e43 3392 const TCHAR *path, /* Pointer to the file path */
jksoft 0:5975af170e43 3393 BYTE value, /* Attribute bits */
jksoft 0:5975af170e43 3394 BYTE mask /* Attribute mask to change */
jksoft 0:5975af170e43 3395 )
jksoft 0:5975af170e43 3396 {
jksoft 0:5975af170e43 3397 FRESULT res;
jksoft 0:5975af170e43 3398 FATFS_DIR dj;
jksoft 0:5975af170e43 3399 BYTE *dir;
jksoft 0:5975af170e43 3400 DEF_NAMEBUF;
jksoft 0:5975af170e43 3401
jksoft 0:5975af170e43 3402
jksoft 0:5975af170e43 3403 res = chk_mounted(&path, &dj.fs, 1);
jksoft 0:5975af170e43 3404 if (res == FR_OK) {
jksoft 0:5975af170e43 3405 INIT_BUF(dj);
jksoft 0:5975af170e43 3406 res = follow_path(&dj, path); /* Follow the file path */
jksoft 0:5975af170e43 3407 FREE_BUF();
jksoft 0:5975af170e43 3408 if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
jksoft 0:5975af170e43 3409 res = FR_INVALID_NAME;
jksoft 0:5975af170e43 3410 if (res == FR_OK) {
jksoft 0:5975af170e43 3411 dir = dj.dir;
jksoft 0:5975af170e43 3412 if (!dir) { /* Is it a root directory? */
jksoft 0:5975af170e43 3413 res = FR_INVALID_NAME;
jksoft 0:5975af170e43 3414 } else { /* File or sub directory */
jksoft 0:5975af170e43 3415 mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */
jksoft 0:5975af170e43 3416 dir[DIR_Attr] = (value & mask) | (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
jksoft 0:5975af170e43 3417 dj.fs->wflag = 1;
jksoft 0:5975af170e43 3418 res = sync(dj.fs);
jksoft 0:5975af170e43 3419 }
jksoft 0:5975af170e43 3420 }
jksoft 0:5975af170e43 3421 }
jksoft 0:5975af170e43 3422
jksoft 0:5975af170e43 3423 LEAVE_FF(dj.fs, res);
jksoft 0:5975af170e43 3424 }
jksoft 0:5975af170e43 3425
jksoft 0:5975af170e43 3426
jksoft 0:5975af170e43 3427
jksoft 0:5975af170e43 3428
jksoft 0:5975af170e43 3429 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3430 /* Change Timestamp */
jksoft 0:5975af170e43 3431 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3432
jksoft 0:5975af170e43 3433 FRESULT f_utime (
jksoft 0:5975af170e43 3434 const TCHAR *path, /* Pointer to the file/directory name */
jksoft 0:5975af170e43 3435 const FILINFO *fno /* Pointer to the time stamp to be set */
jksoft 0:5975af170e43 3436 )
jksoft 0:5975af170e43 3437 {
jksoft 0:5975af170e43 3438 FRESULT res;
jksoft 0:5975af170e43 3439 FATFS_DIR dj;
jksoft 0:5975af170e43 3440 BYTE *dir;
jksoft 0:5975af170e43 3441 DEF_NAMEBUF;
jksoft 0:5975af170e43 3442
jksoft 0:5975af170e43 3443
jksoft 0:5975af170e43 3444 res = chk_mounted(&path, &dj.fs, 1);
jksoft 0:5975af170e43 3445 if (res == FR_OK) {
jksoft 0:5975af170e43 3446 INIT_BUF(dj);
jksoft 0:5975af170e43 3447 res = follow_path(&dj, path); /* Follow the file path */
jksoft 0:5975af170e43 3448 FREE_BUF();
jksoft 0:5975af170e43 3449 if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
jksoft 0:5975af170e43 3450 res = FR_INVALID_NAME;
jksoft 0:5975af170e43 3451 if (res == FR_OK) {
jksoft 0:5975af170e43 3452 dir = dj.dir;
jksoft 0:5975af170e43 3453 if (!dir) { /* Root directory */
jksoft 0:5975af170e43 3454 res = FR_INVALID_NAME;
jksoft 0:5975af170e43 3455 } else { /* File or sub-directory */
jksoft 0:5975af170e43 3456 ST_WORD(dir+DIR_WrtTime, fno->ftime);
jksoft 0:5975af170e43 3457 ST_WORD(dir+DIR_WrtDate, fno->fdate);
jksoft 0:5975af170e43 3458 dj.fs->wflag = 1;
jksoft 0:5975af170e43 3459 res = sync(dj.fs);
jksoft 0:5975af170e43 3460 }
jksoft 0:5975af170e43 3461 }
jksoft 0:5975af170e43 3462 }
jksoft 0:5975af170e43 3463
jksoft 0:5975af170e43 3464 LEAVE_FF(dj.fs, res);
jksoft 0:5975af170e43 3465 }
jksoft 0:5975af170e43 3466
jksoft 0:5975af170e43 3467
jksoft 0:5975af170e43 3468
jksoft 0:5975af170e43 3469
jksoft 0:5975af170e43 3470 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3471 /* Rename File/Directory */
jksoft 0:5975af170e43 3472 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3473
jksoft 0:5975af170e43 3474 FRESULT f_rename (
jksoft 0:5975af170e43 3475 const TCHAR *path_old, /* Pointer to the old name */
jksoft 0:5975af170e43 3476 const TCHAR *path_new /* Pointer to the new name */
jksoft 0:5975af170e43 3477 )
jksoft 0:5975af170e43 3478 {
jksoft 0:5975af170e43 3479 FRESULT res;
jksoft 0:5975af170e43 3480 FATFS_DIR djo, djn;
jksoft 0:5975af170e43 3481 BYTE buf[21], *dir;
jksoft 0:5975af170e43 3482 DWORD dw;
jksoft 0:5975af170e43 3483 DEF_NAMEBUF;
jksoft 0:5975af170e43 3484
jksoft 0:5975af170e43 3485
jksoft 0:5975af170e43 3486 res = chk_mounted(&path_old, &djo.fs, 1);
jksoft 0:5975af170e43 3487 if (res == FR_OK) {
jksoft 0:5975af170e43 3488 djn.fs = djo.fs;
jksoft 0:5975af170e43 3489 INIT_BUF(djo);
jksoft 0:5975af170e43 3490 res = follow_path(&djo, path_old); /* Check old object */
jksoft 0:5975af170e43 3491 if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
jksoft 0:5975af170e43 3492 res = FR_INVALID_NAME;
jksoft 0:5975af170e43 3493 #if _FS_LOCK
jksoft 0:5975af170e43 3494 if (res == FR_OK) res = chk_lock(&djo, 2);
jksoft 0:5975af170e43 3495 #endif
jksoft 0:5975af170e43 3496 if (res == FR_OK) { /* Old object is found */
jksoft 0:5975af170e43 3497 if (!djo.dir) { /* Is root dir? */
jksoft 0:5975af170e43 3498 res = FR_NO_FILE;
jksoft 0:5975af170e43 3499 } else {
jksoft 0:5975af170e43 3500 mem_cpy(buf, djo.dir+DIR_Attr, 21); /* Save the object information except for name */
jksoft 0:5975af170e43 3501 mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Check new object */
jksoft 0:5975af170e43 3502 res = follow_path(&djn, path_new);
jksoft 0:5975af170e43 3503 if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
jksoft 0:5975af170e43 3504 if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
jksoft 0:5975af170e43 3505 /* Start critical section that an interruption or error can cause cross-link */
jksoft 0:5975af170e43 3506 res = dir_register(&djn); /* Register the new entry */
jksoft 0:5975af170e43 3507 if (res == FR_OK) {
jksoft 0:5975af170e43 3508 dir = djn.dir; /* Copy object information except for name */
jksoft 0:5975af170e43 3509 mem_cpy(dir+13, buf+2, 19);
jksoft 0:5975af170e43 3510 dir[DIR_Attr] = buf[0] | AM_ARC;
jksoft 0:5975af170e43 3511 djo.fs->wflag = 1;
jksoft 0:5975af170e43 3512 if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) { /* Update .. entry in the directory if needed */
jksoft 0:5975af170e43 3513 dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
jksoft 0:5975af170e43 3514 if (!dw) {
jksoft 0:5975af170e43 3515 res = FR_INT_ERR;
jksoft 0:5975af170e43 3516 } else {
jksoft 0:5975af170e43 3517 res = move_window(djo.fs, dw);
jksoft 0:5975af170e43 3518 dir = djo.fs->win+SZ_DIR; /* .. entry */
jksoft 0:5975af170e43 3519 if (res == FR_OK && dir[1] == '.') {
jksoft 0:5975af170e43 3520 dw = (djo.fs->fs_type == FS_FAT32 && djn.sclust == djo.fs->dirbase) ? 0 : djn.sclust;
jksoft 0:5975af170e43 3521 st_clust(dir, dw);
jksoft 0:5975af170e43 3522 djo.fs->wflag = 1;
jksoft 0:5975af170e43 3523 }
jksoft 0:5975af170e43 3524 }
jksoft 0:5975af170e43 3525 }
jksoft 0:5975af170e43 3526 if (res == FR_OK) {
jksoft 0:5975af170e43 3527 res = dir_remove(&djo); /* Remove old entry */
jksoft 0:5975af170e43 3528 if (res == FR_OK)
jksoft 0:5975af170e43 3529 res = sync(djo.fs);
jksoft 0:5975af170e43 3530 }
jksoft 0:5975af170e43 3531 }
jksoft 0:5975af170e43 3532 /* End critical section */
jksoft 0:5975af170e43 3533 }
jksoft 0:5975af170e43 3534 }
jksoft 0:5975af170e43 3535 }
jksoft 0:5975af170e43 3536 FREE_BUF();
jksoft 0:5975af170e43 3537 }
jksoft 0:5975af170e43 3538 LEAVE_FF(djo.fs, res);
jksoft 0:5975af170e43 3539 }
jksoft 0:5975af170e43 3540
jksoft 0:5975af170e43 3541 #endif /* !_FS_READONLY */
jksoft 0:5975af170e43 3542 #endif /* _FS_MINIMIZE == 0 */
jksoft 0:5975af170e43 3543 #endif /* _FS_MINIMIZE <= 1 */
jksoft 0:5975af170e43 3544 #endif /* _FS_MINIMIZE <= 2 */
jksoft 0:5975af170e43 3545
jksoft 0:5975af170e43 3546
jksoft 0:5975af170e43 3547
jksoft 0:5975af170e43 3548 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3549 /* Forward data to the stream directly (available on only tiny cfg) */
jksoft 0:5975af170e43 3550 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3551 #if _USE_FORWARD && _FS_TINY
jksoft 0:5975af170e43 3552
jksoft 0:5975af170e43 3553 FRESULT f_forward (
jksoft 0:5975af170e43 3554 FIL *fp, /* Pointer to the file object */
jksoft 0:5975af170e43 3555 UINT (*func)(const BYTE*,UINT), /* Pointer to the streaming function */
jksoft 0:5975af170e43 3556 UINT btr, /* Number of bytes to forward */
jksoft 0:5975af170e43 3557 UINT *bf /* Pointer to number of bytes forwarded */
jksoft 0:5975af170e43 3558 )
jksoft 0:5975af170e43 3559 {
jksoft 0:5975af170e43 3560 FRESULT res;
jksoft 0:5975af170e43 3561 DWORD remain, clst, sect;
jksoft 0:5975af170e43 3562 UINT rcnt;
jksoft 0:5975af170e43 3563 BYTE csect;
jksoft 0:5975af170e43 3564
jksoft 0:5975af170e43 3565
jksoft 0:5975af170e43 3566 *bf = 0; /* Clear transfer byte counter */
jksoft 0:5975af170e43 3567
jksoft 0:5975af170e43 3568 if (!fp) return FR_INVALID_OBJECT;
jksoft 0:5975af170e43 3569
jksoft 0:5975af170e43 3570 res = validate(fp); /* Check validity of the object */
jksoft 0:5975af170e43 3571 if (res != FR_OK) LEAVE_FF(fp->fs, res);
jksoft 0:5975af170e43 3572 if (fp->flag & FA__ERROR) /* Check error flag */
jksoft 0:5975af170e43 3573 LEAVE_FF(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 3574 if (!(fp->flag & FA_READ)) /* Check access mode */
jksoft 0:5975af170e43 3575 LEAVE_FF(fp->fs, FR_DENIED);
jksoft 0:5975af170e43 3576
jksoft 0:5975af170e43 3577 remain = fp->fsize - fp->fptr;
jksoft 0:5975af170e43 3578 if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
jksoft 0:5975af170e43 3579
jksoft 0:5975af170e43 3580 for ( ; btr && (*func)(0, 0); /* Repeat until all data transferred or stream becomes busy */
jksoft 0:5975af170e43 3581 fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
jksoft 0:5975af170e43 3582 csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
jksoft 0:5975af170e43 3583 if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
jksoft 0:5975af170e43 3584 if (!csect) { /* On the cluster boundary? */
jksoft 0:5975af170e43 3585 clst = (fp->fptr == 0) ? /* On the top of the file? */
jksoft 0:5975af170e43 3586 fp->sclust : get_fat(fp->fs, fp->clust);
jksoft 0:5975af170e43 3587 if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 3588 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 3589 fp->clust = clst; /* Update current cluster */
jksoft 0:5975af170e43 3590 }
jksoft 0:5975af170e43 3591 }
jksoft 0:5975af170e43 3592 sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
jksoft 0:5975af170e43 3593 if (!sect) ABORT(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 3594 sect += csect;
jksoft 0:5975af170e43 3595 if (move_window(fp->fs, sect)) /* Move sector window */
jksoft 0:5975af170e43 3596 ABORT(fp->fs, FR_DISK_ERR);
jksoft 0:5975af170e43 3597 fp->dsect = sect;
jksoft 0:5975af170e43 3598 rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
jksoft 0:5975af170e43 3599 if (rcnt > btr) rcnt = btr;
jksoft 0:5975af170e43 3600 rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
jksoft 0:5975af170e43 3601 if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
jksoft 0:5975af170e43 3602 }
jksoft 0:5975af170e43 3603
jksoft 0:5975af170e43 3604 LEAVE_FF(fp->fs, FR_OK);
jksoft 0:5975af170e43 3605 }
jksoft 0:5975af170e43 3606 #endif /* _USE_FORWARD */
jksoft 0:5975af170e43 3607
jksoft 0:5975af170e43 3608
jksoft 0:5975af170e43 3609
jksoft 0:5975af170e43 3610 #if _USE_MKFS && !_FS_READONLY
jksoft 0:5975af170e43 3611 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3612 /* Create File System on the Drive */
jksoft 0:5975af170e43 3613 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3614 #define N_ROOTDIR 512 /* Number of root dir entries for FAT12/16 */
jksoft 0:5975af170e43 3615 #define N_FATS 1 /* Number of FAT copies (1 or 2) */
jksoft 0:5975af170e43 3616
jksoft 0:5975af170e43 3617
jksoft 0:5975af170e43 3618 FRESULT f_mkfs (
jksoft 0:5975af170e43 3619 BYTE drv, /* Logical drive number */
jksoft 0:5975af170e43 3620 BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
jksoft 0:5975af170e43 3621 UINT au /* Allocation unit size [bytes] */
jksoft 0:5975af170e43 3622 )
jksoft 0:5975af170e43 3623 {
jksoft 0:5975af170e43 3624 static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
jksoft 0:5975af170e43 3625 static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
jksoft 0:5975af170e43 3626 BYTE fmt, md, sys, *tbl, pdrv, part;
jksoft 0:5975af170e43 3627 DWORD n_clst, vs, n, wsect;
jksoft 0:5975af170e43 3628 UINT i;
jksoft 0:5975af170e43 3629 DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
jksoft 0:5975af170e43 3630 DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
jksoft 0:5975af170e43 3631 FATFS *fs;
jksoft 0:5975af170e43 3632 DSTATUS stat;
jksoft 0:5975af170e43 3633
jksoft 0:5975af170e43 3634
jksoft 0:5975af170e43 3635 /* Check mounted drive and clear work area */
jksoft 0:5975af170e43 3636 if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
jksoft 0:5975af170e43 3637 if (sfd > 1) return FR_INVALID_PARAMETER;
jksoft 0:5975af170e43 3638 if (au & (au - 1)) return FR_INVALID_PARAMETER;
jksoft 0:5975af170e43 3639 fs = FatFs[drv];
jksoft 0:5975af170e43 3640 if (!fs) return FR_NOT_ENABLED;
jksoft 0:5975af170e43 3641 fs->fs_type = 0;
jksoft 0:5975af170e43 3642 pdrv = LD2PD(drv); /* Physical drive */
jksoft 0:5975af170e43 3643 part = LD2PT(drv); /* Partition (0:auto detect, 1-4:get from partition table)*/
jksoft 0:5975af170e43 3644
jksoft 0:5975af170e43 3645 /* Get disk statics */
jksoft 0:5975af170e43 3646 stat = disk_initialize(pdrv);
jksoft 0:5975af170e43 3647 if (stat & STA_NOINIT) return FR_NOT_READY;
jksoft 0:5975af170e43 3648 if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
jksoft 0:5975af170e43 3649 #if _MAX_SS != 512 /* Get disk sector size */
jksoft 0:5975af170e43 3650 if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK || SS(fs) > _MAX_SS)
jksoft 0:5975af170e43 3651 return FR_DISK_ERR;
jksoft 0:5975af170e43 3652 #endif
jksoft 0:5975af170e43 3653 if (_MULTI_PARTITION && part) {
jksoft 0:5975af170e43 3654 /* Get partition information from partition table in the MBR */
jksoft 0:5975af170e43 3655 if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
jksoft 0:5975af170e43 3656 if (LD_WORD(fs->win+BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
jksoft 0:5975af170e43 3657 tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
jksoft 0:5975af170e43 3658 if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
jksoft 0:5975af170e43 3659 b_vol = LD_DWORD(tbl+8); /* Volume start sector */
jksoft 0:5975af170e43 3660 n_vol = LD_DWORD(tbl+12); /* Volume size */
jksoft 0:5975af170e43 3661 } else {
jksoft 0:5975af170e43 3662 /* Create a partition in this function */
jksoft 0:5975af170e43 3663 if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK || n_vol < 128)
jksoft 0:5975af170e43 3664 return FR_DISK_ERR;
jksoft 0:5975af170e43 3665 b_vol = (sfd) ? 0 : 63; /* Volume start sector */
jksoft 0:5975af170e43 3666 n_vol -= b_vol; /* Volume size */
jksoft 0:5975af170e43 3667 }
jksoft 0:5975af170e43 3668
jksoft 0:5975af170e43 3669 if (!au) { /* AU auto selection */
jksoft 0:5975af170e43 3670 vs = n_vol / (2000 / (SS(fs) / 512));
jksoft 0:5975af170e43 3671 for (i = 0; vs < vst[i]; i++) ;
jksoft 0:5975af170e43 3672 au = cst[i];
jksoft 0:5975af170e43 3673 }
jksoft 0:5975af170e43 3674 au /= SS(fs); /* Number of sectors per cluster */
jksoft 0:5975af170e43 3675 if (au == 0) au = 1;
jksoft 0:5975af170e43 3676 if (au > 128) au = 128;
jksoft 0:5975af170e43 3677
jksoft 0:5975af170e43 3678 /* Pre-compute number of clusters and FAT sub-type */
jksoft 0:5975af170e43 3679 n_clst = n_vol / au;
jksoft 0:5975af170e43 3680 fmt = FS_FAT12;
jksoft 0:5975af170e43 3681 if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
jksoft 0:5975af170e43 3682 if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
jksoft 0:5975af170e43 3683
jksoft 0:5975af170e43 3684 /* Determine offset and size of FAT structure */
jksoft 0:5975af170e43 3685 if (fmt == FS_FAT32) {
jksoft 0:5975af170e43 3686 n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
jksoft 0:5975af170e43 3687 n_rsv = 32;
jksoft 0:5975af170e43 3688 n_dir = 0;
jksoft 0:5975af170e43 3689 } else {
jksoft 0:5975af170e43 3690 n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
jksoft 0:5975af170e43 3691 n_fat = (n_fat + SS(fs) - 1) / SS(fs);
jksoft 0:5975af170e43 3692 n_rsv = 1;
jksoft 0:5975af170e43 3693 n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
jksoft 0:5975af170e43 3694 }
jksoft 0:5975af170e43 3695 b_fat = b_vol + n_rsv; /* FAT area start sector */
jksoft 0:5975af170e43 3696 b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
jksoft 0:5975af170e43 3697 b_data = b_dir + n_dir; /* Data area start sector */
jksoft 0:5975af170e43 3698 if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
jksoft 0:5975af170e43 3699
jksoft 0:5975af170e43 3700 /* Align data start sector to erase block boundary (for flash memory media) */
jksoft 0:5975af170e43 3701 if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK || !n || n > 32768) n = 1;
jksoft 0:5975af170e43 3702 n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
jksoft 0:5975af170e43 3703 n = (n - b_data) / N_FATS;
jksoft 0:5975af170e43 3704 if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
jksoft 0:5975af170e43 3705 n_rsv += n;
jksoft 0:5975af170e43 3706 b_fat += n;
jksoft 0:5975af170e43 3707 } else { /* FAT12/16: Expand FAT size */
jksoft 0:5975af170e43 3708 n_fat += n;
jksoft 0:5975af170e43 3709 }
jksoft 0:5975af170e43 3710
jksoft 0:5975af170e43 3711 /* Determine number of clusters and final check of validity of the FAT sub-type */
jksoft 0:5975af170e43 3712 n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
jksoft 0:5975af170e43 3713 if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
jksoft 0:5975af170e43 3714 || (fmt == FS_FAT32 && n_clst < MIN_FAT32))
jksoft 0:5975af170e43 3715 return FR_MKFS_ABORTED;
jksoft 0:5975af170e43 3716
jksoft 0:5975af170e43 3717 switch (fmt) { /* Determine system ID for partition table */
jksoft 0:5975af170e43 3718 case FS_FAT12: sys = 0x01; break;
jksoft 0:5975af170e43 3719 case FS_FAT16: sys = (n_vol < 0x10000) ? 0x04 : 0x06; break;
jksoft 0:5975af170e43 3720 default: sys = 0x0C;
jksoft 0:5975af170e43 3721 }
jksoft 0:5975af170e43 3722
jksoft 0:5975af170e43 3723 if (_MULTI_PARTITION && part) {
jksoft 0:5975af170e43 3724 /* Update system ID in the partition table */
jksoft 0:5975af170e43 3725 tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
jksoft 0:5975af170e43 3726 tbl[4] = sys;
jksoft 0:5975af170e43 3727 if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
jksoft 0:5975af170e43 3728 md = 0xF8;
jksoft 0:5975af170e43 3729 } else {
jksoft 0:5975af170e43 3730 if (sfd) { /* No partition table (SFD) */
jksoft 0:5975af170e43 3731 md = 0xF0;
jksoft 0:5975af170e43 3732 } else { /* Create partition table (FDISK) */
jksoft 0:5975af170e43 3733 mem_set(fs->win, 0, SS(fs));
jksoft 0:5975af170e43 3734 tbl = fs->win+MBR_Table; /* Create partition table for single partition in the drive */
jksoft 0:5975af170e43 3735 tbl[1] = 1; /* Partition start head */
jksoft 0:5975af170e43 3736 tbl[2] = 1; /* Partition start sector */
jksoft 0:5975af170e43 3737 tbl[3] = 0; /* Partition start cylinder */
jksoft 0:5975af170e43 3738 tbl[4] = sys; /* System type */
jksoft 0:5975af170e43 3739 tbl[5] = 254; /* Partition end head */
jksoft 0:5975af170e43 3740 n = (b_vol + n_vol) / 63 / 255;
jksoft 0:5975af170e43 3741 tbl[6] = (BYTE)((n >> 2) | 63); /* Partition end sector */
jksoft 0:5975af170e43 3742 tbl[7] = (BYTE)n; /* End cylinder */
jksoft 0:5975af170e43 3743 ST_DWORD(tbl+8, 63); /* Partition start in LBA */
jksoft 0:5975af170e43 3744 ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
jksoft 0:5975af170e43 3745 ST_WORD(fs->win+BS_55AA, 0xAA55); /* MBR signature */
jksoft 0:5975af170e43 3746 if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR sector */
jksoft 0:5975af170e43 3747 return FR_DISK_ERR;
jksoft 0:5975af170e43 3748 md = 0xF8;
jksoft 0:5975af170e43 3749 }
jksoft 0:5975af170e43 3750 }
jksoft 0:5975af170e43 3751
jksoft 0:5975af170e43 3752 /* Create BPB in the VBR */
jksoft 0:5975af170e43 3753 tbl = fs->win; /* Clear sector */
jksoft 0:5975af170e43 3754 mem_set(tbl, 0, SS(fs));
jksoft 0:5975af170e43 3755 mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
jksoft 0:5975af170e43 3756 i = SS(fs); /* Sector size */
jksoft 0:5975af170e43 3757 ST_WORD(tbl+BPB_BytsPerSec, i);
jksoft 0:5975af170e43 3758 tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
jksoft 0:5975af170e43 3759 ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
jksoft 0:5975af170e43 3760 tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
jksoft 0:5975af170e43 3761 i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of rootdir entries */
jksoft 0:5975af170e43 3762 ST_WORD(tbl+BPB_RootEntCnt, i);
jksoft 0:5975af170e43 3763 if (n_vol < 0x10000) { /* Number of total sectors */
jksoft 0:5975af170e43 3764 ST_WORD(tbl+BPB_TotSec16, n_vol);
jksoft 0:5975af170e43 3765 } else {
jksoft 0:5975af170e43 3766 ST_DWORD(tbl+BPB_TotSec32, n_vol);
jksoft 0:5975af170e43 3767 }
jksoft 0:5975af170e43 3768 tbl[BPB_Media] = md; /* Media descriptor */
jksoft 0:5975af170e43 3769 ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
jksoft 0:5975af170e43 3770 ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
jksoft 0:5975af170e43 3771 ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
jksoft 0:5975af170e43 3772 n = get_fattime(); /* Use current time as VSN */
jksoft 0:5975af170e43 3773 if (fmt == FS_FAT32) {
jksoft 0:5975af170e43 3774 ST_DWORD(tbl+BS_VolID32, n); /* VSN */
jksoft 0:5975af170e43 3775 ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
jksoft 0:5975af170e43 3776 ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
jksoft 0:5975af170e43 3777 ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (VBR+1) */
jksoft 0:5975af170e43 3778 ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
jksoft 0:5975af170e43 3779 tbl[BS_DrvNum32] = 0x80; /* Drive number */
jksoft 0:5975af170e43 3780 tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
jksoft 0:5975af170e43 3781 mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
jksoft 0:5975af170e43 3782 } else {
jksoft 0:5975af170e43 3783 ST_DWORD(tbl+BS_VolID, n); /* VSN */
jksoft 0:5975af170e43 3784 ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
jksoft 0:5975af170e43 3785 tbl[BS_DrvNum] = 0x80; /* Drive number */
jksoft 0:5975af170e43 3786 tbl[BS_BootSig] = 0x29; /* Extended boot signature */
jksoft 0:5975af170e43 3787 mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
jksoft 0:5975af170e43 3788 }
jksoft 0:5975af170e43 3789 ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
jksoft 0:5975af170e43 3790 if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
jksoft 0:5975af170e43 3791 return FR_DISK_ERR;
jksoft 0:5975af170e43 3792 if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR+6) */
jksoft 0:5975af170e43 3793 disk_write(pdrv, tbl, b_vol + 6, 1);
jksoft 0:5975af170e43 3794
jksoft 0:5975af170e43 3795 /* Initialize FAT area */
jksoft 0:5975af170e43 3796 wsect = b_fat;
jksoft 0:5975af170e43 3797 for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
jksoft 0:5975af170e43 3798 mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
jksoft 0:5975af170e43 3799 n = md; /* Media descriptor byte */
jksoft 0:5975af170e43 3800 if (fmt != FS_FAT32) {
jksoft 0:5975af170e43 3801 n |= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
jksoft 0:5975af170e43 3802 ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
jksoft 0:5975af170e43 3803 } else {
jksoft 0:5975af170e43 3804 n |= 0xFFFFFF00;
jksoft 0:5975af170e43 3805 ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
jksoft 0:5975af170e43 3806 ST_DWORD(tbl+4, 0xFFFFFFFF);
jksoft 0:5975af170e43 3807 ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
jksoft 0:5975af170e43 3808 }
jksoft 0:5975af170e43 3809 if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
jksoft 0:5975af170e43 3810 return FR_DISK_ERR;
jksoft 0:5975af170e43 3811 mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
jksoft 0:5975af170e43 3812 for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
jksoft 0:5975af170e43 3813 if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
jksoft 0:5975af170e43 3814 return FR_DISK_ERR;
jksoft 0:5975af170e43 3815 }
jksoft 0:5975af170e43 3816 }
jksoft 0:5975af170e43 3817
jksoft 0:5975af170e43 3818 /* Initialize root directory */
jksoft 0:5975af170e43 3819 i = (fmt == FS_FAT32) ? au : n_dir;
jksoft 0:5975af170e43 3820 do {
jksoft 0:5975af170e43 3821 if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
jksoft 0:5975af170e43 3822 return FR_DISK_ERR;
jksoft 0:5975af170e43 3823 } while (--i);
jksoft 0:5975af170e43 3824
jksoft 0:5975af170e43 3825 #if _USE_ERASE /* Erase data area if needed */
jksoft 0:5975af170e43 3826 {
jksoft 0:5975af170e43 3827 DWORD eb[2];
jksoft 0:5975af170e43 3828
jksoft 0:5975af170e43 3829 eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
jksoft 0:5975af170e43 3830 disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
jksoft 0:5975af170e43 3831 }
jksoft 0:5975af170e43 3832 #endif
jksoft 0:5975af170e43 3833
jksoft 0:5975af170e43 3834 /* Create FSInfo if needed */
jksoft 0:5975af170e43 3835 if (fmt == FS_FAT32) {
jksoft 0:5975af170e43 3836 ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
jksoft 0:5975af170e43 3837 ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
jksoft 0:5975af170e43 3838 ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
jksoft 0:5975af170e43 3839 ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
jksoft 0:5975af170e43 3840 ST_WORD(tbl+BS_55AA, 0xAA55);
jksoft 0:5975af170e43 3841 disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
jksoft 0:5975af170e43 3842 disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
jksoft 0:5975af170e43 3843 }
jksoft 0:5975af170e43 3844
jksoft 0:5975af170e43 3845 return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
jksoft 0:5975af170e43 3846 }
jksoft 0:5975af170e43 3847
jksoft 0:5975af170e43 3848
jksoft 0:5975af170e43 3849 #if _MULTI_PARTITION == 2
jksoft 0:5975af170e43 3850 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3851 /* Divide Physical Drive */
jksoft 0:5975af170e43 3852 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3853
jksoft 0:5975af170e43 3854 FRESULT f_fdisk (
jksoft 0:5975af170e43 3855 BYTE pdrv, /* Physical drive number */
jksoft 0:5975af170e43 3856 const DWORD szt[], /* Pointer to the size table for each partitions */
jksoft 0:5975af170e43 3857 void* work /* Pointer to the working buffer */
jksoft 0:5975af170e43 3858 )
jksoft 0:5975af170e43 3859 {
jksoft 0:5975af170e43 3860 UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
jksoft 0:5975af170e43 3861 BYTE s_hd, e_hd, *p, *buf = (BYTE*)work;
jksoft 0:5975af170e43 3862 DSTATUS stat;
jksoft 0:5975af170e43 3863 DWORD sz_disk, sz_part, s_part;
jksoft 0:5975af170e43 3864
jksoft 0:5975af170e43 3865
jksoft 0:5975af170e43 3866 stat = disk_initialize(pdrv);
jksoft 0:5975af170e43 3867 if (stat & STA_NOINIT) return FR_NOT_READY;
jksoft 0:5975af170e43 3868 if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
jksoft 0:5975af170e43 3869 if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
jksoft 0:5975af170e43 3870
jksoft 0:5975af170e43 3871 /* Determine CHS in the table regardless of the drive geometry */
jksoft 0:5975af170e43 3872 for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
jksoft 0:5975af170e43 3873 if (n == 256) n--;
jksoft 0:5975af170e43 3874 e_hd = n - 1;
jksoft 0:5975af170e43 3875 sz_cyl = 63 * n;
jksoft 0:5975af170e43 3876 tot_cyl = sz_disk / sz_cyl;
jksoft 0:5975af170e43 3877
jksoft 0:5975af170e43 3878 /* Create partition table */
jksoft 0:5975af170e43 3879 mem_set(buf, 0, _MAX_SS);
jksoft 0:5975af170e43 3880 p = buf + MBR_Table; b_cyl = 0;
jksoft 0:5975af170e43 3881 for (i = 0; i < 4; i++, p += SZ_PTE) {
jksoft 0:5975af170e43 3882 p_cyl = (szt[i] <= 100) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
jksoft 0:5975af170e43 3883 if (!p_cyl) continue;
jksoft 0:5975af170e43 3884 s_part = (DWORD)sz_cyl * b_cyl;
jksoft 0:5975af170e43 3885 sz_part = (DWORD)sz_cyl * p_cyl;
jksoft 0:5975af170e43 3886 if (i == 0) { /* Exclude first track of cylinder 0 */
jksoft 0:5975af170e43 3887 s_hd = 1;
jksoft 0:5975af170e43 3888 s_part += 63; sz_part -= 63;
jksoft 0:5975af170e43 3889 } else {
jksoft 0:5975af170e43 3890 s_hd = 0;
jksoft 0:5975af170e43 3891 }
jksoft 0:5975af170e43 3892 e_cyl = b_cyl + p_cyl - 1;
jksoft 0:5975af170e43 3893 if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
jksoft 0:5975af170e43 3894
jksoft 0:5975af170e43 3895 /* Set partition table */
jksoft 0:5975af170e43 3896 p[1] = s_hd; /* Start head */
jksoft 0:5975af170e43 3897 p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
jksoft 0:5975af170e43 3898 p[3] = (BYTE)b_cyl; /* Start cylinder */
jksoft 0:5975af170e43 3899 p[4] = 0x06; /* System type (temporary setting) */
jksoft 0:5975af170e43 3900 p[5] = e_hd; /* End head */
jksoft 0:5975af170e43 3901 p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
jksoft 0:5975af170e43 3902 p[7] = (BYTE)e_cyl; /* End cylinder */
jksoft 0:5975af170e43 3903 ST_DWORD(p + 8, s_part); /* Start sector in LBA */
jksoft 0:5975af170e43 3904 ST_DWORD(p + 12, sz_part); /* Partition size */
jksoft 0:5975af170e43 3905
jksoft 0:5975af170e43 3906 /* Next partition */
jksoft 0:5975af170e43 3907 b_cyl += p_cyl;
jksoft 0:5975af170e43 3908 }
jksoft 0:5975af170e43 3909 ST_WORD(p, 0xAA55);
jksoft 0:5975af170e43 3910
jksoft 0:5975af170e43 3911 /* Write it to the MBR */
jksoft 0:5975af170e43 3912 return (disk_write(pdrv, buf, 0, 1) || disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
jksoft 0:5975af170e43 3913 }
jksoft 0:5975af170e43 3914
jksoft 0:5975af170e43 3915
jksoft 0:5975af170e43 3916 #endif /* _MULTI_PARTITION == 2 */
jksoft 0:5975af170e43 3917 #endif /* _USE_MKFS && !_FS_READONLY */
jksoft 0:5975af170e43 3918
jksoft 0:5975af170e43 3919
jksoft 0:5975af170e43 3920
jksoft 0:5975af170e43 3921
jksoft 0:5975af170e43 3922 #if _USE_STRFUNC
jksoft 0:5975af170e43 3923 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3924 /* Get a string from the file */
jksoft 0:5975af170e43 3925 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3926 TCHAR* f_gets (
jksoft 0:5975af170e43 3927 TCHAR* buff, /* Pointer to the string buffer to read */
jksoft 0:5975af170e43 3928 int len, /* Size of string buffer (characters) */
jksoft 0:5975af170e43 3929 FIL* fil /* Pointer to the file object */
jksoft 0:5975af170e43 3930 )
jksoft 0:5975af170e43 3931 {
jksoft 0:5975af170e43 3932 int n = 0;
jksoft 0:5975af170e43 3933 TCHAR c, *p = buff;
jksoft 0:5975af170e43 3934 BYTE s[2];
jksoft 0:5975af170e43 3935 UINT rc;
jksoft 0:5975af170e43 3936
jksoft 0:5975af170e43 3937
jksoft 0:5975af170e43 3938 while (n < len - 1) { /* Read bytes until buffer gets filled */
jksoft 0:5975af170e43 3939 f_read(fil, s, 1, &rc);
jksoft 0:5975af170e43 3940 if (rc != 1) break; /* Break on EOF or error */
jksoft 0:5975af170e43 3941 c = s[0];
jksoft 0:5975af170e43 3942 #if _LFN_UNICODE /* Read a character in UTF-8 encoding */
jksoft 0:5975af170e43 3943 if (c >= 0x80) {
jksoft 0:5975af170e43 3944 if (c < 0xC0) continue; /* Skip stray trailer */
jksoft 0:5975af170e43 3945 if (c < 0xE0) { /* Two-byte sequence */
jksoft 0:5975af170e43 3946 f_read(fil, s, 1, &rc);
jksoft 0:5975af170e43 3947 if (rc != 1) break;
jksoft 0:5975af170e43 3948 c = ((c & 0x1F) << 6) | (s[0] & 0x3F);
jksoft 0:5975af170e43 3949 if (c < 0x80) c = '?';
jksoft 0:5975af170e43 3950 } else {
jksoft 0:5975af170e43 3951 if (c < 0xF0) { /* Three-byte sequence */
jksoft 0:5975af170e43 3952 f_read(fil, s, 2, &rc);
jksoft 0:5975af170e43 3953 if (rc != 2) break;
jksoft 0:5975af170e43 3954 c = (c << 12) | ((s[0] & 0x3F) << 6) | (s[1] & 0x3F);
jksoft 0:5975af170e43 3955 if (c < 0x800) c = '?';
jksoft 0:5975af170e43 3956 } else { /* Reject four-byte sequence */
jksoft 0:5975af170e43 3957 c = '?';
jksoft 0:5975af170e43 3958 }
jksoft 0:5975af170e43 3959 }
jksoft 0:5975af170e43 3960 }
jksoft 0:5975af170e43 3961 #endif
jksoft 0:5975af170e43 3962 #if _USE_STRFUNC >= 2
jksoft 0:5975af170e43 3963 if (c == '\r') continue; /* Strip '\r' */
jksoft 0:5975af170e43 3964 #endif
jksoft 0:5975af170e43 3965 *p++ = c;
jksoft 0:5975af170e43 3966 n++;
jksoft 0:5975af170e43 3967 if (c == '\n') break; /* Break on EOL */
jksoft 0:5975af170e43 3968 }
jksoft 0:5975af170e43 3969 *p = 0;
jksoft 0:5975af170e43 3970 return n ? buff : 0; /* When no data read (eof or error), return with error. */
jksoft 0:5975af170e43 3971 }
jksoft 0:5975af170e43 3972
jksoft 0:5975af170e43 3973
jksoft 0:5975af170e43 3974
jksoft 0:5975af170e43 3975 #if !_FS_READONLY
jksoft 0:5975af170e43 3976 #include <stdarg.h>
jksoft 0:5975af170e43 3977 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3978 /* Put a character to the file */
jksoft 0:5975af170e43 3979 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 3980 int f_putc (
jksoft 0:5975af170e43 3981 TCHAR c, /* A character to be output */
jksoft 0:5975af170e43 3982 FIL* fil /* Pointer to the file object */
jksoft 0:5975af170e43 3983 )
jksoft 0:5975af170e43 3984 {
jksoft 0:5975af170e43 3985 UINT bw, btw;
jksoft 0:5975af170e43 3986 BYTE s[3];
jksoft 0:5975af170e43 3987
jksoft 0:5975af170e43 3988
jksoft 0:5975af170e43 3989 #if _USE_STRFUNC >= 2
jksoft 0:5975af170e43 3990 if (c == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */
jksoft 0:5975af170e43 3991 #endif
jksoft 0:5975af170e43 3992
jksoft 0:5975af170e43 3993 #if _LFN_UNICODE /* Write the character in UTF-8 encoding */
jksoft 0:5975af170e43 3994 if (c < 0x80) { /* 7-bit */
jksoft 0:5975af170e43 3995 s[0] = (BYTE)c;
jksoft 0:5975af170e43 3996 btw = 1;
jksoft 0:5975af170e43 3997 } else {
jksoft 0:5975af170e43 3998 if (c < 0x800) { /* 11-bit */
jksoft 0:5975af170e43 3999 s[0] = (BYTE)(0xC0 | (c >> 6));
jksoft 0:5975af170e43 4000 s[1] = (BYTE)(0x80 | (c & 0x3F));
jksoft 0:5975af170e43 4001 btw = 2;
jksoft 0:5975af170e43 4002 } else { /* 16-bit */
jksoft 0:5975af170e43 4003 s[0] = (BYTE)(0xE0 | (c >> 12));
jksoft 0:5975af170e43 4004 s[1] = (BYTE)(0x80 | ((c >> 6) & 0x3F));
jksoft 0:5975af170e43 4005 s[2] = (BYTE)(0x80 | (c & 0x3F));
jksoft 0:5975af170e43 4006 btw = 3;
jksoft 0:5975af170e43 4007 }
jksoft 0:5975af170e43 4008 }
jksoft 0:5975af170e43 4009 #else /* Write the character without conversion */
jksoft 0:5975af170e43 4010 s[0] = (BYTE)c;
jksoft 0:5975af170e43 4011 btw = 1;
jksoft 0:5975af170e43 4012 #endif
jksoft 0:5975af170e43 4013 f_write(fil, s, btw, &bw); /* Write the char to the file */
jksoft 0:5975af170e43 4014 return (bw == btw) ? 1 : EOF; /* Return the result */
jksoft 0:5975af170e43 4015 }
jksoft 0:5975af170e43 4016
jksoft 0:5975af170e43 4017
jksoft 0:5975af170e43 4018
jksoft 0:5975af170e43 4019
jksoft 0:5975af170e43 4020 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 4021 /* Put a string to the file */
jksoft 0:5975af170e43 4022 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 4023 int f_puts (
jksoft 0:5975af170e43 4024 const TCHAR* str, /* Pointer to the string to be output */
jksoft 0:5975af170e43 4025 FIL* fil /* Pointer to the file object */
jksoft 0:5975af170e43 4026 )
jksoft 0:5975af170e43 4027 {
jksoft 0:5975af170e43 4028 int n;
jksoft 0:5975af170e43 4029
jksoft 0:5975af170e43 4030
jksoft 0:5975af170e43 4031 for (n = 0; *str; str++, n++) {
jksoft 0:5975af170e43 4032 if (f_putc(*str, fil) == EOF) return EOF;
jksoft 0:5975af170e43 4033 }
jksoft 0:5975af170e43 4034 return n;
jksoft 0:5975af170e43 4035 }
jksoft 0:5975af170e43 4036
jksoft 0:5975af170e43 4037
jksoft 0:5975af170e43 4038
jksoft 0:5975af170e43 4039
jksoft 0:5975af170e43 4040 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 4041 /* Put a formatted string to the file */
jksoft 0:5975af170e43 4042 /*-----------------------------------------------------------------------*/
jksoft 0:5975af170e43 4043 int f_printf (
jksoft 0:5975af170e43 4044 FIL* fil, /* Pointer to the file object */
jksoft 0:5975af170e43 4045 const TCHAR* str, /* Pointer to the format string */
jksoft 0:5975af170e43 4046 ... /* Optional arguments... */
jksoft 0:5975af170e43 4047 )
jksoft 0:5975af170e43 4048 {
jksoft 0:5975af170e43 4049 va_list arp;
jksoft 0:5975af170e43 4050 BYTE f, r;
jksoft 0:5975af170e43 4051 UINT i, j, w;
jksoft 0:5975af170e43 4052 ULONG v;
jksoft 0:5975af170e43 4053 TCHAR c, d, s[16], *p;
jksoft 0:5975af170e43 4054 int res, chc, cc;
jksoft 0:5975af170e43 4055
jksoft 0:5975af170e43 4056
jksoft 0:5975af170e43 4057 va_start(arp, str);
jksoft 0:5975af170e43 4058
jksoft 0:5975af170e43 4059 for (cc = res = 0; cc != EOF; res += cc) {
jksoft 0:5975af170e43 4060 c = *str++;
jksoft 0:5975af170e43 4061 if (c == 0) break; /* End of string */
jksoft 0:5975af170e43 4062 if (c != '%') { /* Non escape character */
jksoft 0:5975af170e43 4063 cc = f_putc(c, fil);
jksoft 0:5975af170e43 4064 if (cc != EOF) cc = 1;
jksoft 0:5975af170e43 4065 continue;
jksoft 0:5975af170e43 4066 }
jksoft 0:5975af170e43 4067 w = f = 0;
jksoft 0:5975af170e43 4068 c = *str++;
jksoft 0:5975af170e43 4069 if (c == '0') { /* Flag: '0' padding */
jksoft 0:5975af170e43 4070 f = 1; c = *str++;
jksoft 0:5975af170e43 4071 } else {
jksoft 0:5975af170e43 4072 if (c == '-') { /* Flag: left justified */
jksoft 0:5975af170e43 4073 f = 2; c = *str++;
jksoft 0:5975af170e43 4074 }
jksoft 0:5975af170e43 4075 }
jksoft 0:5975af170e43 4076 while (IsDigit(c)) { /* Precision */
jksoft 0:5975af170e43 4077 w = w * 10 + c - '0';
jksoft 0:5975af170e43 4078 c = *str++;
jksoft 0:5975af170e43 4079 }
jksoft 0:5975af170e43 4080 if (c == 'l' || c == 'L') { /* Prefix: Size is long int */
jksoft 0:5975af170e43 4081 f |= 4; c = *str++;
jksoft 0:5975af170e43 4082 }
jksoft 0:5975af170e43 4083 if (!c) break;
jksoft 0:5975af170e43 4084 d = c;
jksoft 0:5975af170e43 4085 if (IsLower(d)) d -= 0x20;
jksoft 0:5975af170e43 4086 switch (d) { /* Type is... */
jksoft 0:5975af170e43 4087 case 'S' : /* String */
jksoft 0:5975af170e43 4088 p = va_arg(arp, TCHAR*);
jksoft 0:5975af170e43 4089 for (j = 0; p[j]; j++) ;
jksoft 0:5975af170e43 4090 chc = 0;
jksoft 0:5975af170e43 4091 if (!(f & 2)) {
jksoft 0:5975af170e43 4092 while (j++ < w) chc += (cc = f_putc(' ', fil));
jksoft 0:5975af170e43 4093 }
jksoft 0:5975af170e43 4094 chc += (cc = f_puts(p, fil));
jksoft 0:5975af170e43 4095 while (j++ < w) chc += (cc = f_putc(' ', fil));
jksoft 0:5975af170e43 4096 if (cc != EOF) cc = chc;
jksoft 0:5975af170e43 4097 continue;
jksoft 0:5975af170e43 4098 case 'C' : /* Character */
jksoft 0:5975af170e43 4099 cc = f_putc((TCHAR)va_arg(arp, int), fil); continue;
jksoft 0:5975af170e43 4100 case 'B' : /* Binary */
jksoft 0:5975af170e43 4101 r = 2; break;
jksoft 0:5975af170e43 4102 case 'O' : /* Octal */
jksoft 0:5975af170e43 4103 r = 8; break;
jksoft 0:5975af170e43 4104 case 'D' : /* Signed decimal */
jksoft 0:5975af170e43 4105 case 'U' : /* Unsigned decimal */
jksoft 0:5975af170e43 4106 r = 10; break;
jksoft 0:5975af170e43 4107 case 'X' : /* Hexdecimal */
jksoft 0:5975af170e43 4108 r = 16; break;
jksoft 0:5975af170e43 4109 default: /* Unknown type (pass-through) */
jksoft 0:5975af170e43 4110 cc = f_putc(c, fil); continue;
jksoft 0:5975af170e43 4111 }
jksoft 0:5975af170e43 4112
jksoft 0:5975af170e43 4113 /* Get an argument and put it in numeral */
jksoft 0:5975af170e43 4114 v = (f & 4) ? (ULONG)va_arg(arp, long) : ((d == 'D') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int));
jksoft 0:5975af170e43 4115 if (d == 'D' && (v & 0x80000000)) {
jksoft 0:5975af170e43 4116 v = 0 - v;
jksoft 0:5975af170e43 4117 f |= 8;
jksoft 0:5975af170e43 4118 }
jksoft 0:5975af170e43 4119 i = 0;
jksoft 0:5975af170e43 4120 do {
jksoft 0:5975af170e43 4121 d = (TCHAR)(v % r); v /= r;
jksoft 0:5975af170e43 4122 if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
jksoft 0:5975af170e43 4123 s[i++] = d + '0';
jksoft 0:5975af170e43 4124 } while (v && i < sizeof s / sizeof s[0]);
jksoft 0:5975af170e43 4125 if (f & 8) s[i++] = '-';
jksoft 0:5975af170e43 4126 j = i; d = (f & 1) ? '0' : ' ';
jksoft 0:5975af170e43 4127 res = 0;
jksoft 0:5975af170e43 4128 while (!(f & 2) && j++ < w) res += (cc = f_putc(d, fil));
jksoft 0:5975af170e43 4129 do res += (cc = f_putc(s[--i], fil)); while(i);
jksoft 0:5975af170e43 4130 while (j++ < w) res += (cc = f_putc(' ', fil));
jksoft 0:5975af170e43 4131 if (cc != EOF) cc = res;
jksoft 0:5975af170e43 4132 }
jksoft 0:5975af170e43 4133
jksoft 0:5975af170e43 4134 va_end(arp);
jksoft 0:5975af170e43 4135 return (cc == EOF) ? cc : res;
jksoft 0:5975af170e43 4136 }
jksoft 0:5975af170e43 4137
jksoft 0:5975af170e43 4138 #endif /* !_FS_READONLY */
jksoft 0:5975af170e43 4139 #endif /* _USE_STRFUNC */