Implementation of a LocalFileSystem using S25FL216K serial flash memory. Currently only 256kB available!

Dependencies:   S25FL216K

Fork of S25FL216K_USBFileSystem by Erik -

Committer:
mkilivan
Date:
Tue Dec 23 21:36:32 2014 +0000
Revision:
5:c8918e47c566
initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mkilivan 5:c8918e47c566 1 /*----------------------------------------------------------------------------/
mkilivan 5:c8918e47c566 2 / FatFs - FAT file system module R0.09a (C)ChaN, 2012
mkilivan 5:c8918e47c566 3 /-----------------------------------------------------------------------------/
mkilivan 5:c8918e47c566 4 / FatFs module is a generic FAT file system module for small embedded systems.
mkilivan 5:c8918e47c566 5 / This is a free software that opened for education, research and commercial
mkilivan 5:c8918e47c566 6 / developments under license policy of following terms.
mkilivan 5:c8918e47c566 7 /
mkilivan 5:c8918e47c566 8 / Copyright (C) 2012, ChaN, all right reserved.
mkilivan 5:c8918e47c566 9 /
mkilivan 5:c8918e47c566 10 / * The FatFs module is a free software and there is NO WARRANTY.
mkilivan 5:c8918e47c566 11 / * No restriction on use. You can use, modify and redistribute it for
mkilivan 5:c8918e47c566 12 / personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
mkilivan 5:c8918e47c566 13 / * Redistributions of source code must retain the above copyright notice.
mkilivan 5:c8918e47c566 14 /
mkilivan 5:c8918e47c566 15 /-----------------------------------------------------------------------------/
mkilivan 5:c8918e47c566 16 / Feb 26,'06 R0.00 Prototype.
mkilivan 5:c8918e47c566 17 /
mkilivan 5:c8918e47c566 18 / Apr 29,'06 R0.01 First stable version.
mkilivan 5:c8918e47c566 19 /
mkilivan 5:c8918e47c566 20 / Jun 01,'06 R0.02 Added FAT12 support.
mkilivan 5:c8918e47c566 21 / Removed unbuffered mode.
mkilivan 5:c8918e47c566 22 / Fixed a problem on small (<32M) partition.
mkilivan 5:c8918e47c566 23 / Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
mkilivan 5:c8918e47c566 24 /
mkilivan 5:c8918e47c566 25 / Sep 22,'06 R0.03 Added f_rename().
mkilivan 5:c8918e47c566 26 / Changed option _FS_MINIMUM to _FS_MINIMIZE.
mkilivan 5:c8918e47c566 27 / Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
mkilivan 5:c8918e47c566 28 / Fixed f_mkdir() creates incorrect directory on FAT32.
mkilivan 5:c8918e47c566 29 /
mkilivan 5:c8918e47c566 30 / Feb 04,'07 R0.04 Supported multiple drive system.
mkilivan 5:c8918e47c566 31 / Changed some interfaces for multiple drive system.
mkilivan 5:c8918e47c566 32 / Changed f_mountdrv() to f_mount().
mkilivan 5:c8918e47c566 33 / Added f_mkfs().
mkilivan 5:c8918e47c566 34 / Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
mkilivan 5:c8918e47c566 35 / Added a capability of extending file size to f_lseek().
mkilivan 5:c8918e47c566 36 / Added minimization level 3.
mkilivan 5:c8918e47c566 37 / Fixed an endian sensitive code in f_mkfs().
mkilivan 5:c8918e47c566 38 / May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
mkilivan 5:c8918e47c566 39 / Added FSInfo support.
mkilivan 5:c8918e47c566 40 / Fixed DBCS name can result FR_INVALID_NAME.
mkilivan 5:c8918e47c566 41 / Fixed short seek (<= csize) collapses the file object.
mkilivan 5:c8918e47c566 42 /
mkilivan 5:c8918e47c566 43 / Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
mkilivan 5:c8918e47c566 44 / Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
mkilivan 5:c8918e47c566 45 / Fixed f_mkdir() on FAT32 creates incorrect directory.
mkilivan 5:c8918e47c566 46 / Feb 03,'08 R0.05a Added f_truncate() and f_utime().
mkilivan 5:c8918e47c566 47 / Fixed off by one error at FAT sub-type determination.
mkilivan 5:c8918e47c566 48 / Fixed btr in f_read() can be mistruncated.
mkilivan 5:c8918e47c566 49 / Fixed cached sector is not flushed when create and close without write.
mkilivan 5:c8918e47c566 50 /
mkilivan 5:c8918e47c566 51 / Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
mkilivan 5:c8918e47c566 52 / Improved performance of f_lseek() on moving to the same or following cluster.
mkilivan 5:c8918e47c566 53 /
mkilivan 5:c8918e47c566 54 / Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
mkilivan 5:c8918e47c566 55 / Added long file name feature.
mkilivan 5:c8918e47c566 56 / Added multiple code page feature.
mkilivan 5:c8918e47c566 57 / Added re-entrancy for multitask operation.
mkilivan 5:c8918e47c566 58 / Added auto cluster size selection to f_mkfs().
mkilivan 5:c8918e47c566 59 / Added rewind option to f_readdir().
mkilivan 5:c8918e47c566 60 / Changed result code of critical errors.
mkilivan 5:c8918e47c566 61 / Renamed string functions to avoid name collision.
mkilivan 5:c8918e47c566 62 / Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
mkilivan 5:c8918e47c566 63 / Added multiple sector size feature.
mkilivan 5:c8918e47c566 64 / Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
mkilivan 5:c8918e47c566 65 / Fixed wrong cache control in f_lseek().
mkilivan 5:c8918e47c566 66 / Added relative path feature.
mkilivan 5:c8918e47c566 67 / Added f_chdir() and f_chdrive().
mkilivan 5:c8918e47c566 68 / Added proper case conversion to extended char.
mkilivan 5:c8918e47c566 69 / Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
mkilivan 5:c8918e47c566 70 / Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
mkilivan 5:c8918e47c566 71 / Fixed name matching error on the 13 char boundary.
mkilivan 5:c8918e47c566 72 / Added a configuration option, _LFN_UNICODE.
mkilivan 5:c8918e47c566 73 / Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
mkilivan 5:c8918e47c566 74 /
mkilivan 5:c8918e47c566 75 / May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
mkilivan 5:c8918e47c566 76 / Added file lock feature. (_FS_SHARE)
mkilivan 5:c8918e47c566 77 / Added fast seek feature. (_USE_FASTSEEK)
mkilivan 5:c8918e47c566 78 / Changed some types on the API, XCHAR->TCHAR.
mkilivan 5:c8918e47c566 79 / Changed fname member in the FILINFO structure on Unicode cfg.
mkilivan 5:c8918e47c566 80 / String functions support UTF-8 encoding files on Unicode cfg.
mkilivan 5:c8918e47c566 81 / Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
mkilivan 5:c8918e47c566 82 / Added sector erase feature. (_USE_ERASE)
mkilivan 5:c8918e47c566 83 / Moved file lock semaphore table from fs object to the bss.
mkilivan 5:c8918e47c566 84 / Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
mkilivan 5:c8918e47c566 85 / Fixed f_mkfs() creates wrong FAT32 volume.
mkilivan 5:c8918e47c566 86 / Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
mkilivan 5:c8918e47c566 87 / f_lseek() reports required table size on creating CLMP.
mkilivan 5:c8918e47c566 88 / Extended format syntax of f_printf function.
mkilivan 5:c8918e47c566 89 / Ignores duplicated directory separators in given path name.
mkilivan 5:c8918e47c566 90 /
mkilivan 5:c8918e47c566 91 / Sep 06,'11 R0.09 f_mkfs() supports multiple partition to finish the multiple partition feature.
mkilivan 5:c8918e47c566 92 / Added f_fdisk(). (_MULTI_PARTITION = 2)
mkilivan 5:c8918e47c566 93 / Aug 27,'12 R0.09a Fixed assertion failure due to OS/2 EA on FAT12/16 volume.
mkilivan 5:c8918e47c566 94 / Changed f_open() and f_opendir reject null object pointer to avoid crash.
mkilivan 5:c8918e47c566 95 / Changed option name _FS_SHARE to _FS_LOCK.
mkilivan 5:c8918e47c566 96 /---------------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 97
mkilivan 5:c8918e47c566 98 #include "ff.h" /* FatFs configurations and declarations */
mkilivan 5:c8918e47c566 99 #include "diskio.h" /* Declarations of low level disk I/O functions */
mkilivan 5:c8918e47c566 100
mkilivan 5:c8918e47c566 101 /*--------------------------------------------------------------------------
mkilivan 5:c8918e47c566 102
mkilivan 5:c8918e47c566 103 Module Private Definitions
mkilivan 5:c8918e47c566 104
mkilivan 5:c8918e47c566 105 ---------------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 106
mkilivan 5:c8918e47c566 107 #if _FATFS != 4004 /* Revision ID */
mkilivan 5:c8918e47c566 108 #error Wrong include file (ff.h).
mkilivan 5:c8918e47c566 109 #endif
mkilivan 5:c8918e47c566 110
mkilivan 5:c8918e47c566 111
mkilivan 5:c8918e47c566 112 /* Definitions on sector size */
mkilivan 5:c8918e47c566 113 #if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
mkilivan 5:c8918e47c566 114 #error Wrong sector size.
mkilivan 5:c8918e47c566 115 #endif
mkilivan 5:c8918e47c566 116 #if _MAX_SS != 512
mkilivan 5:c8918e47c566 117 #define SS(fs) ((fs)->ssize) /* Variable sector size */
mkilivan 5:c8918e47c566 118 #else
mkilivan 5:c8918e47c566 119 #define SS(fs) 512U /* Fixed sector size */
mkilivan 5:c8918e47c566 120 #endif
mkilivan 5:c8918e47c566 121
mkilivan 5:c8918e47c566 122
mkilivan 5:c8918e47c566 123 /* Reentrancy related */
mkilivan 5:c8918e47c566 124 #if _FS_REENTRANT
mkilivan 5:c8918e47c566 125 #if _USE_LFN == 1
mkilivan 5:c8918e47c566 126 #error Static LFN work area must not be used in re-entrant configuration.
mkilivan 5:c8918e47c566 127 #endif
mkilivan 5:c8918e47c566 128 #define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
mkilivan 5:c8918e47c566 129 #define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
mkilivan 5:c8918e47c566 130 #else
mkilivan 5:c8918e47c566 131 #define ENTER_FF(fs)
mkilivan 5:c8918e47c566 132 #define LEAVE_FF(fs, res) return res
mkilivan 5:c8918e47c566 133 #endif
mkilivan 5:c8918e47c566 134
mkilivan 5:c8918e47c566 135 #define ABORT(fs, res) { fp->flag |= FA__ERROR; LEAVE_FF(fs, res); }
mkilivan 5:c8918e47c566 136
mkilivan 5:c8918e47c566 137
mkilivan 5:c8918e47c566 138 /* File access control feature */
mkilivan 5:c8918e47c566 139 #if _FS_LOCK
mkilivan 5:c8918e47c566 140 #if _FS_READONLY
mkilivan 5:c8918e47c566 141 #error _FS_LOCK must be 0 on read-only cfg.
mkilivan 5:c8918e47c566 142 #endif
mkilivan 5:c8918e47c566 143 typedef struct {
mkilivan 5:c8918e47c566 144 FATFS *fs; /* File ID 1, volume (NULL:blank entry) */
mkilivan 5:c8918e47c566 145 DWORD clu; /* File ID 2, directory */
mkilivan 5:c8918e47c566 146 WORD idx; /* File ID 3, directory index */
mkilivan 5:c8918e47c566 147 WORD ctr; /* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:write mode */
mkilivan 5:c8918e47c566 148 } FILESEM;
mkilivan 5:c8918e47c566 149 #endif
mkilivan 5:c8918e47c566 150
mkilivan 5:c8918e47c566 151
mkilivan 5:c8918e47c566 152
mkilivan 5:c8918e47c566 153 /* DBCS code ranges and SBCS extend char conversion table */
mkilivan 5:c8918e47c566 154
mkilivan 5:c8918e47c566 155 #if _CODE_PAGE == 932 /* Japanese Shift-JIS */
mkilivan 5:c8918e47c566 156 #define _DF1S 0x81 /* DBC 1st byte range 1 start */
mkilivan 5:c8918e47c566 157 #define _DF1E 0x9F /* DBC 1st byte range 1 end */
mkilivan 5:c8918e47c566 158 #define _DF2S 0xE0 /* DBC 1st byte range 2 start */
mkilivan 5:c8918e47c566 159 #define _DF2E 0xFC /* DBC 1st byte range 2 end */
mkilivan 5:c8918e47c566 160 #define _DS1S 0x40 /* DBC 2nd byte range 1 start */
mkilivan 5:c8918e47c566 161 #define _DS1E 0x7E /* DBC 2nd byte range 1 end */
mkilivan 5:c8918e47c566 162 #define _DS2S 0x80 /* DBC 2nd byte range 2 start */
mkilivan 5:c8918e47c566 163 #define _DS2E 0xFC /* DBC 2nd byte range 2 end */
mkilivan 5:c8918e47c566 164
mkilivan 5:c8918e47c566 165 #elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
mkilivan 5:c8918e47c566 166 #define _DF1S 0x81
mkilivan 5:c8918e47c566 167 #define _DF1E 0xFE
mkilivan 5:c8918e47c566 168 #define _DS1S 0x40
mkilivan 5:c8918e47c566 169 #define _DS1E 0x7E
mkilivan 5:c8918e47c566 170 #define _DS2S 0x80
mkilivan 5:c8918e47c566 171 #define _DS2E 0xFE
mkilivan 5:c8918e47c566 172
mkilivan 5:c8918e47c566 173 #elif _CODE_PAGE == 949 /* Korean */
mkilivan 5:c8918e47c566 174 #define _DF1S 0x81
mkilivan 5:c8918e47c566 175 #define _DF1E 0xFE
mkilivan 5:c8918e47c566 176 #define _DS1S 0x41
mkilivan 5:c8918e47c566 177 #define _DS1E 0x5A
mkilivan 5:c8918e47c566 178 #define _DS2S 0x61
mkilivan 5:c8918e47c566 179 #define _DS2E 0x7A
mkilivan 5:c8918e47c566 180 #define _DS3S 0x81
mkilivan 5:c8918e47c566 181 #define _DS3E 0xFE
mkilivan 5:c8918e47c566 182
mkilivan 5:c8918e47c566 183 #elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
mkilivan 5:c8918e47c566 184 #define _DF1S 0x81
mkilivan 5:c8918e47c566 185 #define _DF1E 0xFE
mkilivan 5:c8918e47c566 186 #define _DS1S 0x40
mkilivan 5:c8918e47c566 187 #define _DS1E 0x7E
mkilivan 5:c8918e47c566 188 #define _DS2S 0xA1
mkilivan 5:c8918e47c566 189 #define _DS2E 0xFE
mkilivan 5:c8918e47c566 190
mkilivan 5:c8918e47c566 191 #elif _CODE_PAGE == 437 /* U.S. (OEM) */
mkilivan 5:c8918e47c566 192 #define _DF1S 0
mkilivan 5:c8918e47c566 193 #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, \
mkilivan 5:c8918e47c566 194 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, \
mkilivan 5:c8918e47c566 195 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, \
mkilivan 5:c8918e47c566 196 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}
mkilivan 5:c8918e47c566 197
mkilivan 5:c8918e47c566 198 #elif _CODE_PAGE == 720 /* Arabic (OEM) */
mkilivan 5:c8918e47c566 199 #define _DF1S 0
mkilivan 5:c8918e47c566 200 #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, \
mkilivan 5:c8918e47c566 201 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, \
mkilivan 5:c8918e47c566 202 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, \
mkilivan 5:c8918e47c566 203 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}
mkilivan 5:c8918e47c566 204
mkilivan 5:c8918e47c566 205 #elif _CODE_PAGE == 737 /* Greek (OEM) */
mkilivan 5:c8918e47c566 206 #define _DF1S 0
mkilivan 5:c8918e47c566 207 #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, \
mkilivan 5:c8918e47c566 208 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, \
mkilivan 5:c8918e47c566 209 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, \
mkilivan 5:c8918e47c566 210 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}
mkilivan 5:c8918e47c566 211
mkilivan 5:c8918e47c566 212 #elif _CODE_PAGE == 775 /* Baltic (OEM) */
mkilivan 5:c8918e47c566 213 #define _DF1S 0
mkilivan 5:c8918e47c566 214 #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, \
mkilivan 5:c8918e47c566 215 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, \
mkilivan 5:c8918e47c566 216 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, \
mkilivan 5:c8918e47c566 217 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}
mkilivan 5:c8918e47c566 218
mkilivan 5:c8918e47c566 219 #elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
mkilivan 5:c8918e47c566 220 #define _DF1S 0
mkilivan 5:c8918e47c566 221 #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, \
mkilivan 5:c8918e47c566 222 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, \
mkilivan 5:c8918e47c566 223 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, \
mkilivan 5:c8918e47c566 224 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}
mkilivan 5:c8918e47c566 225
mkilivan 5:c8918e47c566 226 #elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
mkilivan 5:c8918e47c566 227 #define _DF1S 0
mkilivan 5:c8918e47c566 228 #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, \
mkilivan 5:c8918e47c566 229 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, \
mkilivan 5:c8918e47c566 230 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, \
mkilivan 5:c8918e47c566 231 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}
mkilivan 5:c8918e47c566 232
mkilivan 5:c8918e47c566 233 #elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
mkilivan 5:c8918e47c566 234 #define _DF1S 0
mkilivan 5:c8918e47c566 235 #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, \
mkilivan 5:c8918e47c566 236 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, \
mkilivan 5:c8918e47c566 237 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, \
mkilivan 5:c8918e47c566 238 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}
mkilivan 5:c8918e47c566 239
mkilivan 5:c8918e47c566 240 #elif _CODE_PAGE == 857 /* Turkish (OEM) */
mkilivan 5:c8918e47c566 241 #define _DF1S 0
mkilivan 5:c8918e47c566 242 #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, \
mkilivan 5:c8918e47c566 243 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, \
mkilivan 5:c8918e47c566 244 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, \
mkilivan 5:c8918e47c566 245 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}
mkilivan 5:c8918e47c566 246
mkilivan 5:c8918e47c566 247 #elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
mkilivan 5:c8918e47c566 248 #define _DF1S 0
mkilivan 5:c8918e47c566 249 #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, \
mkilivan 5:c8918e47c566 250 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, \
mkilivan 5:c8918e47c566 251 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, \
mkilivan 5:c8918e47c566 252 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}
mkilivan 5:c8918e47c566 253
mkilivan 5:c8918e47c566 254 #elif _CODE_PAGE == 862 /* Hebrew (OEM) */
mkilivan 5:c8918e47c566 255 #define _DF1S 0
mkilivan 5:c8918e47c566 256 #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, \
mkilivan 5:c8918e47c566 257 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, \
mkilivan 5:c8918e47c566 258 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, \
mkilivan 5:c8918e47c566 259 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}
mkilivan 5:c8918e47c566 260
mkilivan 5:c8918e47c566 261 #elif _CODE_PAGE == 866 /* Russian (OEM) */
mkilivan 5:c8918e47c566 262 #define _DF1S 0
mkilivan 5:c8918e47c566 263 #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, \
mkilivan 5:c8918e47c566 264 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, \
mkilivan 5:c8918e47c566 265 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, \
mkilivan 5:c8918e47c566 266 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}
mkilivan 5:c8918e47c566 267
mkilivan 5:c8918e47c566 268 #elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
mkilivan 5:c8918e47c566 269 #define _DF1S 0
mkilivan 5:c8918e47c566 270 #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, \
mkilivan 5:c8918e47c566 271 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, \
mkilivan 5:c8918e47c566 272 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, \
mkilivan 5:c8918e47c566 273 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}
mkilivan 5:c8918e47c566 274
mkilivan 5:c8918e47c566 275 #elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
mkilivan 5:c8918e47c566 276 #define _DF1S 0
mkilivan 5:c8918e47c566 277 #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, \
mkilivan 5:c8918e47c566 278 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, \
mkilivan 5:c8918e47c566 279 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, \
mkilivan 5:c8918e47c566 280 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}
mkilivan 5:c8918e47c566 281
mkilivan 5:c8918e47c566 282 #elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
mkilivan 5:c8918e47c566 283 #define _DF1S 0
mkilivan 5:c8918e47c566 284 #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, \
mkilivan 5:c8918e47c566 285 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, \
mkilivan 5:c8918e47c566 286 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, \
mkilivan 5:c8918e47c566 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}
mkilivan 5:c8918e47c566 288
mkilivan 5:c8918e47c566 289 #elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
mkilivan 5:c8918e47c566 290 #define _DF1S 0
mkilivan 5:c8918e47c566 291 #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, \
mkilivan 5:c8918e47c566 292 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, \
mkilivan 5:c8918e47c566 293 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, \
mkilivan 5:c8918e47c566 294 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}
mkilivan 5:c8918e47c566 295
mkilivan 5:c8918e47c566 296 #elif _CODE_PAGE == 1253 /* Greek (Windows) */
mkilivan 5:c8918e47c566 297 #define _DF1S 0
mkilivan 5:c8918e47c566 298 #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, \
mkilivan 5:c8918e47c566 299 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, \
mkilivan 5:c8918e47c566 300 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, \
mkilivan 5:c8918e47c566 301 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}
mkilivan 5:c8918e47c566 302
mkilivan 5:c8918e47c566 303 #elif _CODE_PAGE == 1254 /* Turkish (Windows) */
mkilivan 5:c8918e47c566 304 #define _DF1S 0
mkilivan 5:c8918e47c566 305 #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, \
mkilivan 5:c8918e47c566 306 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, \
mkilivan 5:c8918e47c566 307 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, \
mkilivan 5:c8918e47c566 308 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}
mkilivan 5:c8918e47c566 309
mkilivan 5:c8918e47c566 310 #elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
mkilivan 5:c8918e47c566 311 #define _DF1S 0
mkilivan 5:c8918e47c566 312 #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, \
mkilivan 5:c8918e47c566 313 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, \
mkilivan 5:c8918e47c566 314 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, \
mkilivan 5:c8918e47c566 315 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}
mkilivan 5:c8918e47c566 316
mkilivan 5:c8918e47c566 317 #elif _CODE_PAGE == 1256 /* Arabic (Windows) */
mkilivan 5:c8918e47c566 318 #define _DF1S 0
mkilivan 5:c8918e47c566 319 #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, \
mkilivan 5:c8918e47c566 320 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, \
mkilivan 5:c8918e47c566 321 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, \
mkilivan 5:c8918e47c566 322 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}
mkilivan 5:c8918e47c566 323
mkilivan 5:c8918e47c566 324 #elif _CODE_PAGE == 1257 /* Baltic (Windows) */
mkilivan 5:c8918e47c566 325 #define _DF1S 0
mkilivan 5:c8918e47c566 326 #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, \
mkilivan 5:c8918e47c566 327 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, \
mkilivan 5:c8918e47c566 328 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, \
mkilivan 5:c8918e47c566 329 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}
mkilivan 5:c8918e47c566 330
mkilivan 5:c8918e47c566 331 #elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
mkilivan 5:c8918e47c566 332 #define _DF1S 0
mkilivan 5:c8918e47c566 333 #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, \
mkilivan 5:c8918e47c566 334 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, \
mkilivan 5:c8918e47c566 335 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, \
mkilivan 5:c8918e47c566 336 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}
mkilivan 5:c8918e47c566 337
mkilivan 5:c8918e47c566 338 #elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
mkilivan 5:c8918e47c566 339 #if _USE_LFN
mkilivan 5:c8918e47c566 340 #error Cannot use LFN feature without valid code page.
mkilivan 5:c8918e47c566 341 #endif
mkilivan 5:c8918e47c566 342 #define _DF1S 0
mkilivan 5:c8918e47c566 343
mkilivan 5:c8918e47c566 344 #else
mkilivan 5:c8918e47c566 345 #error Unknown code page
mkilivan 5:c8918e47c566 346
mkilivan 5:c8918e47c566 347 #endif
mkilivan 5:c8918e47c566 348
mkilivan 5:c8918e47c566 349
mkilivan 5:c8918e47c566 350 /* Character code support macros */
mkilivan 5:c8918e47c566 351 #define IsUpper(c) (((c)>='A')&&((c)<='Z'))
mkilivan 5:c8918e47c566 352 #define IsLower(c) (((c)>='a')&&((c)<='z'))
mkilivan 5:c8918e47c566 353 #define IsDigit(c) (((c)>='0')&&((c)<='9'))
mkilivan 5:c8918e47c566 354
mkilivan 5:c8918e47c566 355 #if _DF1S /* Code page is DBCS */
mkilivan 5:c8918e47c566 356
mkilivan 5:c8918e47c566 357 #ifdef _DF2S /* Two 1st byte areas */
mkilivan 5:c8918e47c566 358 #define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) || ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
mkilivan 5:c8918e47c566 359 #else /* One 1st byte area */
mkilivan 5:c8918e47c566 360 #define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
mkilivan 5:c8918e47c566 361 #endif
mkilivan 5:c8918e47c566 362
mkilivan 5:c8918e47c566 363 #ifdef _DS3S /* Three 2nd byte areas */
mkilivan 5:c8918e47c566 364 #define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) || ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
mkilivan 5:c8918e47c566 365 #else /* Two 2nd byte areas */
mkilivan 5:c8918e47c566 366 #define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
mkilivan 5:c8918e47c566 367 #endif
mkilivan 5:c8918e47c566 368
mkilivan 5:c8918e47c566 369 #else /* Code page is SBCS */
mkilivan 5:c8918e47c566 370
mkilivan 5:c8918e47c566 371 #define IsDBCS1(c) 0
mkilivan 5:c8918e47c566 372 #define IsDBCS2(c) 0
mkilivan 5:c8918e47c566 373
mkilivan 5:c8918e47c566 374 #endif /* _DF1S */
mkilivan 5:c8918e47c566 375
mkilivan 5:c8918e47c566 376
mkilivan 5:c8918e47c566 377 /* Name status flags */
mkilivan 5:c8918e47c566 378 #define NS 11 /* Index of name status byte in fn[] */
mkilivan 5:c8918e47c566 379 #define NS_LOSS 0x01 /* Out of 8.3 format */
mkilivan 5:c8918e47c566 380 #define NS_LFN 0x02 /* Force to create LFN entry */
mkilivan 5:c8918e47c566 381 #define NS_LAST 0x04 /* Last segment */
mkilivan 5:c8918e47c566 382 #define NS_BODY 0x08 /* Lower case flag (body) */
mkilivan 5:c8918e47c566 383 #define NS_EXT 0x10 /* Lower case flag (ext) */
mkilivan 5:c8918e47c566 384 #define NS_DOT 0x20 /* Dot entry */
mkilivan 5:c8918e47c566 385
mkilivan 5:c8918e47c566 386
mkilivan 5:c8918e47c566 387 /* FAT sub-type boundaries */
mkilivan 5:c8918e47c566 388 /* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */
mkilivan 5:c8918e47c566 389 #define MIN_FAT16 4086 /* Minimum number of clusters for FAT16 */
mkilivan 5:c8918e47c566 390 #define MIN_FAT32 65526 /* Minimum number of clusters for FAT32 */
mkilivan 5:c8918e47c566 391
mkilivan 5:c8918e47c566 392
mkilivan 5:c8918e47c566 393 /* FatFs refers the members in the FAT structures as byte array instead of
mkilivan 5:c8918e47c566 394 / structure member because the structure is not binary compatible between
mkilivan 5:c8918e47c566 395 / different platforms */
mkilivan 5:c8918e47c566 396
mkilivan 5:c8918e47c566 397 #define BS_jmpBoot 0 /* Jump instruction (3) */
mkilivan 5:c8918e47c566 398 #define BS_OEMName 3 /* OEM name (8) */
mkilivan 5:c8918e47c566 399 #define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
mkilivan 5:c8918e47c566 400 #define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
mkilivan 5:c8918e47c566 401 #define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
mkilivan 5:c8918e47c566 402 #define BPB_NumFATs 16 /* Number of FAT copies (1) */
mkilivan 5:c8918e47c566 403 #define BPB_RootEntCnt 17 /* Number of root dir entries for FAT12/16 (2) */
mkilivan 5:c8918e47c566 404 #define BPB_TotSec16 19 /* Volume size [sector] (2) */
mkilivan 5:c8918e47c566 405 #define BPB_Media 21 /* Media descriptor (1) */
mkilivan 5:c8918e47c566 406 #define BPB_FATSz16 22 /* FAT size [sector] (2) */
mkilivan 5:c8918e47c566 407 #define BPB_SecPerTrk 24 /* Track size [sector] (2) */
mkilivan 5:c8918e47c566 408 #define BPB_NumHeads 26 /* Number of heads (2) */
mkilivan 5:c8918e47c566 409 #define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
mkilivan 5:c8918e47c566 410 #define BPB_TotSec32 32 /* Volume size [sector] (4) */
mkilivan 5:c8918e47c566 411 #define BS_DrvNum 36 /* Physical drive number (2) */
mkilivan 5:c8918e47c566 412 #define BS_BootSig 38 /* Extended boot signature (1) */
mkilivan 5:c8918e47c566 413 #define BS_VolID 39 /* Volume serial number (4) */
mkilivan 5:c8918e47c566 414 #define BS_VolLab 43 /* Volume label (8) */
mkilivan 5:c8918e47c566 415 #define BS_FilSysType 54 /* File system type (1) */
mkilivan 5:c8918e47c566 416 #define BPB_FATSz32 36 /* FAT size [sector] (4) */
mkilivan 5:c8918e47c566 417 #define BPB_ExtFlags 40 /* Extended flags (2) */
mkilivan 5:c8918e47c566 418 #define BPB_FSVer 42 /* File system version (2) */
mkilivan 5:c8918e47c566 419 #define BPB_RootClus 44 /* Root dir first cluster (4) */
mkilivan 5:c8918e47c566 420 #define BPB_FSInfo 48 /* Offset of FSInfo sector (2) */
mkilivan 5:c8918e47c566 421 #define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
mkilivan 5:c8918e47c566 422 #define BS_DrvNum32 64 /* Physical drive number (2) */
mkilivan 5:c8918e47c566 423 #define BS_BootSig32 66 /* Extended boot signature (1) */
mkilivan 5:c8918e47c566 424 #define BS_VolID32 67 /* Volume serial number (4) */
mkilivan 5:c8918e47c566 425 #define BS_VolLab32 71 /* Volume label (8) */
mkilivan 5:c8918e47c566 426 #define BS_FilSysType32 82 /* File system type (1) */
mkilivan 5:c8918e47c566 427 #define FSI_LeadSig 0 /* FSI: Leading signature (4) */
mkilivan 5:c8918e47c566 428 #define FSI_StrucSig 484 /* FSI: Structure signature (4) */
mkilivan 5:c8918e47c566 429 #define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
mkilivan 5:c8918e47c566 430 #define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
mkilivan 5:c8918e47c566 431 #define MBR_Table 446 /* MBR: Partition table offset (2) */
mkilivan 5:c8918e47c566 432 #define SZ_PTE 16 /* MBR: Size of a partition table entry */
mkilivan 5:c8918e47c566 433 #define BS_55AA 510 /* Boot sector signature (2) */
mkilivan 5:c8918e47c566 434
mkilivan 5:c8918e47c566 435 #define DIR_Name 0 /* Short file name (11) */
mkilivan 5:c8918e47c566 436 #define DIR_Attr 11 /* Attribute (1) */
mkilivan 5:c8918e47c566 437 #define DIR_NTres 12 /* NT flag (1) */
mkilivan 5:c8918e47c566 438 #define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
mkilivan 5:c8918e47c566 439 #define DIR_CrtTime 14 /* Created time (2) */
mkilivan 5:c8918e47c566 440 #define DIR_CrtDate 16 /* Created date (2) */
mkilivan 5:c8918e47c566 441 #define DIR_LstAccDate 18 /* Last accessed date (2) */
mkilivan 5:c8918e47c566 442 #define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
mkilivan 5:c8918e47c566 443 #define DIR_WrtTime 22 /* Modified time (2) */
mkilivan 5:c8918e47c566 444 #define DIR_WrtDate 24 /* Modified date (2) */
mkilivan 5:c8918e47c566 445 #define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
mkilivan 5:c8918e47c566 446 #define DIR_FileSize 28 /* File size (4) */
mkilivan 5:c8918e47c566 447 #define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
mkilivan 5:c8918e47c566 448 #define LDIR_Attr 11 /* LFN attribute (1) */
mkilivan 5:c8918e47c566 449 #define LDIR_Type 12 /* LFN type (1) */
mkilivan 5:c8918e47c566 450 #define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
mkilivan 5:c8918e47c566 451 #define LDIR_FstClusLO 26 /* Filled by zero (0) */
mkilivan 5:c8918e47c566 452 #define SZ_DIR 32 /* Size of a directory entry */
mkilivan 5:c8918e47c566 453 #define LLE 0x40 /* Last long entry flag in LDIR_Ord */
mkilivan 5:c8918e47c566 454 #define DDE 0xE5 /* Deleted directory entry mark in DIR_Name[0] */
mkilivan 5:c8918e47c566 455 #define NDDE 0x05 /* Replacement of the character collides with DDE */
mkilivan 5:c8918e47c566 456
mkilivan 5:c8918e47c566 457
mkilivan 5:c8918e47c566 458 /*------------------------------------------------------------*/
mkilivan 5:c8918e47c566 459 /* Module private work area */
mkilivan 5:c8918e47c566 460 /*------------------------------------------------------------*/
mkilivan 5:c8918e47c566 461 /* Note that uninitialized variables with static duration are
mkilivan 5:c8918e47c566 462 / zeroed/nulled at start-up. If not, the compiler or start-up
mkilivan 5:c8918e47c566 463 / routine is out of ANSI-C standard.
mkilivan 5:c8918e47c566 464 */
mkilivan 5:c8918e47c566 465
mkilivan 5:c8918e47c566 466 #if _VOLUMES
mkilivan 5:c8918e47c566 467 static
mkilivan 5:c8918e47c566 468 FATFS *FatFs[_VOLUMES]; /* Pointer to the file system objects (logical drives) */
mkilivan 5:c8918e47c566 469 #else
mkilivan 5:c8918e47c566 470 #error Number of volumes must not be 0.
mkilivan 5:c8918e47c566 471 #endif
mkilivan 5:c8918e47c566 472
mkilivan 5:c8918e47c566 473 static
mkilivan 5:c8918e47c566 474 WORD Fsid; /* File system mount ID */
mkilivan 5:c8918e47c566 475
mkilivan 5:c8918e47c566 476 #if _FS_RPATH
mkilivan 5:c8918e47c566 477 static
mkilivan 5:c8918e47c566 478 BYTE CurrVol; /* Current drive */
mkilivan 5:c8918e47c566 479 #endif
mkilivan 5:c8918e47c566 480
mkilivan 5:c8918e47c566 481 #if _FS_LOCK
mkilivan 5:c8918e47c566 482 static
mkilivan 5:c8918e47c566 483 FILESEM Files[_FS_LOCK]; /* File lock semaphores */
mkilivan 5:c8918e47c566 484 #endif
mkilivan 5:c8918e47c566 485
mkilivan 5:c8918e47c566 486 #if _USE_LFN == 0 /* No LFN feature */
mkilivan 5:c8918e47c566 487 #define DEF_NAMEBUF BYTE sfn[12]
mkilivan 5:c8918e47c566 488 #define INIT_BUF(dobj) (dobj).fn = sfn
mkilivan 5:c8918e47c566 489 #define FREE_BUF()
mkilivan 5:c8918e47c566 490
mkilivan 5:c8918e47c566 491 #elif _USE_LFN == 1 /* LFN feature with static working buffer */
mkilivan 5:c8918e47c566 492 static WCHAR LfnBuf[_MAX_LFN+1];
mkilivan 5:c8918e47c566 493 #define DEF_NAMEBUF BYTE sfn[12]
mkilivan 5:c8918e47c566 494 #define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
mkilivan 5:c8918e47c566 495 #define FREE_BUF()
mkilivan 5:c8918e47c566 496
mkilivan 5:c8918e47c566 497 #elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
mkilivan 5:c8918e47c566 498 #define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
mkilivan 5:c8918e47c566 499 #define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
mkilivan 5:c8918e47c566 500 #define FREE_BUF()
mkilivan 5:c8918e47c566 501
mkilivan 5:c8918e47c566 502 #elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
mkilivan 5:c8918e47c566 503 #define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
mkilivan 5:c8918e47c566 504 #define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
mkilivan 5:c8918e47c566 505 if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
mkilivan 5:c8918e47c566 506 (dobj).lfn = lfn; (dobj).fn = sfn; }
mkilivan 5:c8918e47c566 507 #define FREE_BUF() ff_memfree(lfn)
mkilivan 5:c8918e47c566 508
mkilivan 5:c8918e47c566 509 #else
mkilivan 5:c8918e47c566 510 #error Wrong LFN configuration.
mkilivan 5:c8918e47c566 511 #endif
mkilivan 5:c8918e47c566 512
mkilivan 5:c8918e47c566 513
mkilivan 5:c8918e47c566 514
mkilivan 5:c8918e47c566 515
mkilivan 5:c8918e47c566 516 /*--------------------------------------------------------------------------
mkilivan 5:c8918e47c566 517
mkilivan 5:c8918e47c566 518 Module Private Functions
mkilivan 5:c8918e47c566 519
mkilivan 5:c8918e47c566 520 ---------------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 521
mkilivan 5:c8918e47c566 522
mkilivan 5:c8918e47c566 523 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 524 /* String functions */
mkilivan 5:c8918e47c566 525 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 526
mkilivan 5:c8918e47c566 527 /* Copy memory to memory */
mkilivan 5:c8918e47c566 528 static
mkilivan 5:c8918e47c566 529 void mem_cpy (void* dst, const void* src, UINT cnt) {
mkilivan 5:c8918e47c566 530 BYTE *d = (BYTE*)dst;
mkilivan 5:c8918e47c566 531 const BYTE *s = (const BYTE*)src;
mkilivan 5:c8918e47c566 532
mkilivan 5:c8918e47c566 533 #if _WORD_ACCESS == 1
mkilivan 5:c8918e47c566 534 while (cnt >= sizeof (int)) {
mkilivan 5:c8918e47c566 535 *(int*)d = *(int*)s;
mkilivan 5:c8918e47c566 536 d += sizeof (int); s += sizeof (int);
mkilivan 5:c8918e47c566 537 cnt -= sizeof (int);
mkilivan 5:c8918e47c566 538 }
mkilivan 5:c8918e47c566 539 #endif
mkilivan 5:c8918e47c566 540 while (cnt--)
mkilivan 5:c8918e47c566 541 *d++ = *s++;
mkilivan 5:c8918e47c566 542 }
mkilivan 5:c8918e47c566 543
mkilivan 5:c8918e47c566 544 /* Fill memory */
mkilivan 5:c8918e47c566 545 static
mkilivan 5:c8918e47c566 546 void mem_set (void* dst, int val, UINT cnt) {
mkilivan 5:c8918e47c566 547 BYTE *d = (BYTE*)dst;
mkilivan 5:c8918e47c566 548
mkilivan 5:c8918e47c566 549 while (cnt--)
mkilivan 5:c8918e47c566 550 *d++ = (BYTE)val;
mkilivan 5:c8918e47c566 551 }
mkilivan 5:c8918e47c566 552
mkilivan 5:c8918e47c566 553 /* Compare memory to memory */
mkilivan 5:c8918e47c566 554 static
mkilivan 5:c8918e47c566 555 int mem_cmp (const void* dst, const void* src, UINT cnt) {
mkilivan 5:c8918e47c566 556 const BYTE *d = (const BYTE *)dst, *s = (const BYTE *)src;
mkilivan 5:c8918e47c566 557 int r = 0;
mkilivan 5:c8918e47c566 558
mkilivan 5:c8918e47c566 559 while (cnt-- && (r = *d++ - *s++) == 0) ;
mkilivan 5:c8918e47c566 560 return r;
mkilivan 5:c8918e47c566 561 }
mkilivan 5:c8918e47c566 562
mkilivan 5:c8918e47c566 563 /* Check if chr is contained in the string */
mkilivan 5:c8918e47c566 564 static
mkilivan 5:c8918e47c566 565 int chk_chr (const char* str, int chr) {
mkilivan 5:c8918e47c566 566 while (*str && *str != chr) str++;
mkilivan 5:c8918e47c566 567 return *str;
mkilivan 5:c8918e47c566 568 }
mkilivan 5:c8918e47c566 569
mkilivan 5:c8918e47c566 570
mkilivan 5:c8918e47c566 571
mkilivan 5:c8918e47c566 572 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 573 /* Request/Release grant to access the volume */
mkilivan 5:c8918e47c566 574 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 575 #if _FS_REENTRANT
mkilivan 5:c8918e47c566 576
mkilivan 5:c8918e47c566 577 static
mkilivan 5:c8918e47c566 578 int lock_fs (
mkilivan 5:c8918e47c566 579 FATFS *fs /* File system object */
mkilivan 5:c8918e47c566 580 )
mkilivan 5:c8918e47c566 581 {
mkilivan 5:c8918e47c566 582 return ff_req_grant(fs->sobj);
mkilivan 5:c8918e47c566 583 }
mkilivan 5:c8918e47c566 584
mkilivan 5:c8918e47c566 585
mkilivan 5:c8918e47c566 586 static
mkilivan 5:c8918e47c566 587 void unlock_fs (
mkilivan 5:c8918e47c566 588 FATFS *fs, /* File system object */
mkilivan 5:c8918e47c566 589 FRESULT res /* Result code to be returned */
mkilivan 5:c8918e47c566 590 )
mkilivan 5:c8918e47c566 591 {
mkilivan 5:c8918e47c566 592 if (fs &&
mkilivan 5:c8918e47c566 593 res != FR_NOT_ENABLED &&
mkilivan 5:c8918e47c566 594 res != FR_INVALID_DRIVE &&
mkilivan 5:c8918e47c566 595 res != FR_INVALID_OBJECT &&
mkilivan 5:c8918e47c566 596 res != FR_TIMEOUT) {
mkilivan 5:c8918e47c566 597 ff_rel_grant(fs->sobj);
mkilivan 5:c8918e47c566 598 }
mkilivan 5:c8918e47c566 599 }
mkilivan 5:c8918e47c566 600 #endif
mkilivan 5:c8918e47c566 601
mkilivan 5:c8918e47c566 602
mkilivan 5:c8918e47c566 603
mkilivan 5:c8918e47c566 604 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 605 /* File lock control functions */
mkilivan 5:c8918e47c566 606 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 607 #if _FS_LOCK
mkilivan 5:c8918e47c566 608
mkilivan 5:c8918e47c566 609 static
mkilivan 5:c8918e47c566 610 FRESULT chk_lock ( /* Check if the file can be accessed */
mkilivan 5:c8918e47c566 611 DIR* dj, /* Directory object pointing the file to be checked */
mkilivan 5:c8918e47c566 612 int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
mkilivan 5:c8918e47c566 613 )
mkilivan 5:c8918e47c566 614 {
mkilivan 5:c8918e47c566 615 UINT i, be;
mkilivan 5:c8918e47c566 616
mkilivan 5:c8918e47c566 617 /* Search file semaphore table */
mkilivan 5:c8918e47c566 618 for (i = be = 0; i < _FS_LOCK; i++) {
mkilivan 5:c8918e47c566 619 if (Files[i].fs) { /* Existing entry */
mkilivan 5:c8918e47c566 620 if (Files[i].fs == dj->fs && /* Check if the file matched with an open file */
mkilivan 5:c8918e47c566 621 Files[i].clu == dj->sclust &&
mkilivan 5:c8918e47c566 622 Files[i].idx == dj->index) break;
mkilivan 5:c8918e47c566 623 } else { /* Blank entry */
mkilivan 5:c8918e47c566 624 be++;
mkilivan 5:c8918e47c566 625 }
mkilivan 5:c8918e47c566 626 }
mkilivan 5:c8918e47c566 627 if (i == _FS_LOCK) /* The file is not opened */
mkilivan 5:c8918e47c566 628 return (be || acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new file? */
mkilivan 5:c8918e47c566 629
mkilivan 5:c8918e47c566 630 /* The file has been opened. Reject any open against writing file and all write mode open */
mkilivan 5:c8918e47c566 631 return (acc || Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
mkilivan 5:c8918e47c566 632 }
mkilivan 5:c8918e47c566 633
mkilivan 5:c8918e47c566 634
mkilivan 5:c8918e47c566 635 static
mkilivan 5:c8918e47c566 636 int enq_lock (void) /* Check if an entry is available for a new file */
mkilivan 5:c8918e47c566 637 {
mkilivan 5:c8918e47c566 638 UINT i;
mkilivan 5:c8918e47c566 639
mkilivan 5:c8918e47c566 640 for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mkilivan 5:c8918e47c566 641 return (i == _FS_LOCK) ? 0 : 1;
mkilivan 5:c8918e47c566 642 }
mkilivan 5:c8918e47c566 643
mkilivan 5:c8918e47c566 644
mkilivan 5:c8918e47c566 645 static
mkilivan 5:c8918e47c566 646 UINT inc_lock ( /* Increment file open counter and returns its index (0:int error) */
mkilivan 5:c8918e47c566 647 DIR* dj, /* Directory object pointing the file to register or increment */
mkilivan 5:c8918e47c566 648 int acc /* Desired access mode (0:Read, !0:Write) */
mkilivan 5:c8918e47c566 649 )
mkilivan 5:c8918e47c566 650 {
mkilivan 5:c8918e47c566 651 UINT i;
mkilivan 5:c8918e47c566 652
mkilivan 5:c8918e47c566 653
mkilivan 5:c8918e47c566 654 for (i = 0; i < _FS_LOCK; i++) { /* Find the file */
mkilivan 5:c8918e47c566 655 if (Files[i].fs == dj->fs &&
mkilivan 5:c8918e47c566 656 Files[i].clu == dj->sclust &&
mkilivan 5:c8918e47c566 657 Files[i].idx == dj->index) break;
mkilivan 5:c8918e47c566 658 }
mkilivan 5:c8918e47c566 659
mkilivan 5:c8918e47c566 660 if (i == _FS_LOCK) { /* Not opened. Register it as new. */
mkilivan 5:c8918e47c566 661 for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mkilivan 5:c8918e47c566 662 if (i == _FS_LOCK) return 0; /* No space to register (int err) */
mkilivan 5:c8918e47c566 663 Files[i].fs = dj->fs;
mkilivan 5:c8918e47c566 664 Files[i].clu = dj->sclust;
mkilivan 5:c8918e47c566 665 Files[i].idx = dj->index;
mkilivan 5:c8918e47c566 666 Files[i].ctr = 0;
mkilivan 5:c8918e47c566 667 }
mkilivan 5:c8918e47c566 668
mkilivan 5:c8918e47c566 669 if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
mkilivan 5:c8918e47c566 670
mkilivan 5:c8918e47c566 671 Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
mkilivan 5:c8918e47c566 672
mkilivan 5:c8918e47c566 673 return i + 1;
mkilivan 5:c8918e47c566 674 }
mkilivan 5:c8918e47c566 675
mkilivan 5:c8918e47c566 676
mkilivan 5:c8918e47c566 677 static
mkilivan 5:c8918e47c566 678 FRESULT dec_lock ( /* Decrement file open counter */
mkilivan 5:c8918e47c566 679 UINT i /* Semaphore index */
mkilivan 5:c8918e47c566 680 )
mkilivan 5:c8918e47c566 681 {
mkilivan 5:c8918e47c566 682 WORD n;
mkilivan 5:c8918e47c566 683 FRESULT res;
mkilivan 5:c8918e47c566 684
mkilivan 5:c8918e47c566 685
mkilivan 5:c8918e47c566 686 if (--i < _FS_LOCK) {
mkilivan 5:c8918e47c566 687 n = Files[i].ctr;
mkilivan 5:c8918e47c566 688 if (n == 0x100) n = 0;
mkilivan 5:c8918e47c566 689 if (n) n--;
mkilivan 5:c8918e47c566 690 Files[i].ctr = n;
mkilivan 5:c8918e47c566 691 if (!n) Files[i].fs = 0;
mkilivan 5:c8918e47c566 692 res = FR_OK;
mkilivan 5:c8918e47c566 693 } else {
mkilivan 5:c8918e47c566 694 res = FR_INT_ERR;
mkilivan 5:c8918e47c566 695 }
mkilivan 5:c8918e47c566 696 return res;
mkilivan 5:c8918e47c566 697 }
mkilivan 5:c8918e47c566 698
mkilivan 5:c8918e47c566 699
mkilivan 5:c8918e47c566 700 static
mkilivan 5:c8918e47c566 701 void clear_lock ( /* Clear lock entries of the volume */
mkilivan 5:c8918e47c566 702 FATFS *fs
mkilivan 5:c8918e47c566 703 )
mkilivan 5:c8918e47c566 704 {
mkilivan 5:c8918e47c566 705 UINT i;
mkilivan 5:c8918e47c566 706
mkilivan 5:c8918e47c566 707 for (i = 0; i < _FS_LOCK; i++) {
mkilivan 5:c8918e47c566 708 if (Files[i].fs == fs) Files[i].fs = 0;
mkilivan 5:c8918e47c566 709 }
mkilivan 5:c8918e47c566 710 }
mkilivan 5:c8918e47c566 711 #endif
mkilivan 5:c8918e47c566 712
mkilivan 5:c8918e47c566 713
mkilivan 5:c8918e47c566 714
mkilivan 5:c8918e47c566 715 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 716 /* Change window offset */
mkilivan 5:c8918e47c566 717 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 718
mkilivan 5:c8918e47c566 719 static
mkilivan 5:c8918e47c566 720 FRESULT move_window (
mkilivan 5:c8918e47c566 721 FATFS *fs, /* File system object */
mkilivan 5:c8918e47c566 722 DWORD sector /* Sector number to make appearance in the fs->win[] */
mkilivan 5:c8918e47c566 723 ) /* Move to zero only writes back dirty window */
mkilivan 5:c8918e47c566 724 {
mkilivan 5:c8918e47c566 725 DWORD wsect;
mkilivan 5:c8918e47c566 726
mkilivan 5:c8918e47c566 727
mkilivan 5:c8918e47c566 728 wsect = fs->winsect;
mkilivan 5:c8918e47c566 729 if (wsect != sector) { /* Changed current window */
mkilivan 5:c8918e47c566 730 #if !_FS_READONLY
mkilivan 5:c8918e47c566 731 if (fs->wflag) { /* Write back dirty window if needed */
mkilivan 5:c8918e47c566 732 if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK)
mkilivan 5:c8918e47c566 733 return FR_DISK_ERR;
mkilivan 5:c8918e47c566 734 fs->wflag = 0;
mkilivan 5:c8918e47c566 735 if (wsect < (fs->fatbase + fs->fsize)) { /* In FAT area */
mkilivan 5:c8918e47c566 736 BYTE nf;
mkilivan 5:c8918e47c566 737 for (nf = fs->n_fats; nf > 1; nf--) { /* Reflect the change to all FAT copies */
mkilivan 5:c8918e47c566 738 wsect += fs->fsize;
mkilivan 5:c8918e47c566 739 disk_write(fs->drv, fs->win, wsect, 1);
mkilivan 5:c8918e47c566 740 }
mkilivan 5:c8918e47c566 741 }
mkilivan 5:c8918e47c566 742 }
mkilivan 5:c8918e47c566 743 #endif
mkilivan 5:c8918e47c566 744 if (sector) {
mkilivan 5:c8918e47c566 745 if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK)
mkilivan 5:c8918e47c566 746 return FR_DISK_ERR;
mkilivan 5:c8918e47c566 747 fs->winsect = sector;
mkilivan 5:c8918e47c566 748 }
mkilivan 5:c8918e47c566 749 }
mkilivan 5:c8918e47c566 750
mkilivan 5:c8918e47c566 751 return FR_OK;
mkilivan 5:c8918e47c566 752 }
mkilivan 5:c8918e47c566 753
mkilivan 5:c8918e47c566 754
mkilivan 5:c8918e47c566 755
mkilivan 5:c8918e47c566 756
mkilivan 5:c8918e47c566 757 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 758 /* Clean-up cached data */
mkilivan 5:c8918e47c566 759 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 760 #if !_FS_READONLY
mkilivan 5:c8918e47c566 761 static
mkilivan 5:c8918e47c566 762 FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */
mkilivan 5:c8918e47c566 763 FATFS *fs /* File system object */
mkilivan 5:c8918e47c566 764 )
mkilivan 5:c8918e47c566 765 {
mkilivan 5:c8918e47c566 766 FRESULT res;
mkilivan 5:c8918e47c566 767
mkilivan 5:c8918e47c566 768
mkilivan 5:c8918e47c566 769 res = move_window(fs, 0);
mkilivan 5:c8918e47c566 770 if (res == FR_OK) {
mkilivan 5:c8918e47c566 771 /* Update FSInfo sector if needed */
mkilivan 5:c8918e47c566 772 if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
mkilivan 5:c8918e47c566 773 fs->winsect = 0;
mkilivan 5:c8918e47c566 774 /* Create FSInfo structure */
mkilivan 5:c8918e47c566 775 mem_set(fs->win, 0, 512);
mkilivan 5:c8918e47c566 776 ST_WORD(fs->win+BS_55AA, 0xAA55);
mkilivan 5:c8918e47c566 777 ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
mkilivan 5:c8918e47c566 778 ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
mkilivan 5:c8918e47c566 779 ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
mkilivan 5:c8918e47c566 780 ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
mkilivan 5:c8918e47c566 781 /* Write it into the FSInfo sector */
mkilivan 5:c8918e47c566 782 disk_write(fs->drv, fs->win, fs->fsi_sector, 1);
mkilivan 5:c8918e47c566 783 fs->fsi_flag = 0;
mkilivan 5:c8918e47c566 784 }
mkilivan 5:c8918e47c566 785 /* Make sure that no pending write process in the physical drive */
mkilivan 5:c8918e47c566 786 if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
mkilivan 5:c8918e47c566 787 res = FR_DISK_ERR;
mkilivan 5:c8918e47c566 788 }
mkilivan 5:c8918e47c566 789
mkilivan 5:c8918e47c566 790 return res;
mkilivan 5:c8918e47c566 791 }
mkilivan 5:c8918e47c566 792 #endif
mkilivan 5:c8918e47c566 793
mkilivan 5:c8918e47c566 794
mkilivan 5:c8918e47c566 795
mkilivan 5:c8918e47c566 796
mkilivan 5:c8918e47c566 797 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 798 /* Get sector# from cluster# */
mkilivan 5:c8918e47c566 799 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 800
mkilivan 5:c8918e47c566 801
mkilivan 5:c8918e47c566 802 DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
mkilivan 5:c8918e47c566 803 FATFS *fs, /* File system object */
mkilivan 5:c8918e47c566 804 DWORD clst /* Cluster# to be converted */
mkilivan 5:c8918e47c566 805 )
mkilivan 5:c8918e47c566 806 {
mkilivan 5:c8918e47c566 807 clst -= 2;
mkilivan 5:c8918e47c566 808 if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
mkilivan 5:c8918e47c566 809 return clst * fs->csize + fs->database;
mkilivan 5:c8918e47c566 810 }
mkilivan 5:c8918e47c566 811
mkilivan 5:c8918e47c566 812
mkilivan 5:c8918e47c566 813
mkilivan 5:c8918e47c566 814
mkilivan 5:c8918e47c566 815 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 816 /* FAT access - Read value of a FAT entry */
mkilivan 5:c8918e47c566 817 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 818
mkilivan 5:c8918e47c566 819
mkilivan 5:c8918e47c566 820 DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
mkilivan 5:c8918e47c566 821 FATFS *fs, /* File system object */
mkilivan 5:c8918e47c566 822 DWORD clst /* Cluster# to get the link information */
mkilivan 5:c8918e47c566 823 )
mkilivan 5:c8918e47c566 824 {
mkilivan 5:c8918e47c566 825 UINT wc, bc;
mkilivan 5:c8918e47c566 826 BYTE *p;
mkilivan 5:c8918e47c566 827
mkilivan 5:c8918e47c566 828
mkilivan 5:c8918e47c566 829 if (clst < 2 || clst >= fs->n_fatent) /* Check range */
mkilivan 5:c8918e47c566 830 return 1;
mkilivan 5:c8918e47c566 831
mkilivan 5:c8918e47c566 832 switch (fs->fs_type) {
mkilivan 5:c8918e47c566 833 case FS_FAT12 :
mkilivan 5:c8918e47c566 834 bc = (UINT)clst; bc += bc / 2;
mkilivan 5:c8918e47c566 835 if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
mkilivan 5:c8918e47c566 836 wc = fs->win[bc % SS(fs)]; bc++;
mkilivan 5:c8918e47c566 837 if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
mkilivan 5:c8918e47c566 838 wc |= fs->win[bc % SS(fs)] << 8;
mkilivan 5:c8918e47c566 839 return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
mkilivan 5:c8918e47c566 840
mkilivan 5:c8918e47c566 841 case FS_FAT16 :
mkilivan 5:c8918e47c566 842 if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
mkilivan 5:c8918e47c566 843 p = &fs->win[clst * 2 % SS(fs)];
mkilivan 5:c8918e47c566 844 return LD_WORD(p);
mkilivan 5:c8918e47c566 845
mkilivan 5:c8918e47c566 846 case FS_FAT32 :
mkilivan 5:c8918e47c566 847 if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
mkilivan 5:c8918e47c566 848 p = &fs->win[clst * 4 % SS(fs)];
mkilivan 5:c8918e47c566 849 return LD_DWORD(p) & 0x0FFFFFFF;
mkilivan 5:c8918e47c566 850 }
mkilivan 5:c8918e47c566 851
mkilivan 5:c8918e47c566 852 return 0xFFFFFFFF; /* An error occurred at the disk I/O layer */
mkilivan 5:c8918e47c566 853 }
mkilivan 5:c8918e47c566 854
mkilivan 5:c8918e47c566 855
mkilivan 5:c8918e47c566 856
mkilivan 5:c8918e47c566 857
mkilivan 5:c8918e47c566 858 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 859 /* FAT access - Change value of a FAT entry */
mkilivan 5:c8918e47c566 860 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 861 #if !_FS_READONLY
mkilivan 5:c8918e47c566 862
mkilivan 5:c8918e47c566 863 FRESULT put_fat (
mkilivan 5:c8918e47c566 864 FATFS *fs, /* File system object */
mkilivan 5:c8918e47c566 865 DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
mkilivan 5:c8918e47c566 866 DWORD val /* New value to mark the cluster */
mkilivan 5:c8918e47c566 867 )
mkilivan 5:c8918e47c566 868 {
mkilivan 5:c8918e47c566 869 UINT bc;
mkilivan 5:c8918e47c566 870 BYTE *p;
mkilivan 5:c8918e47c566 871 FRESULT res;
mkilivan 5:c8918e47c566 872
mkilivan 5:c8918e47c566 873
mkilivan 5:c8918e47c566 874 if (clst < 2 || clst >= fs->n_fatent) { /* Check range */
mkilivan 5:c8918e47c566 875 res = FR_INT_ERR;
mkilivan 5:c8918e47c566 876
mkilivan 5:c8918e47c566 877 } else {
mkilivan 5:c8918e47c566 878 switch (fs->fs_type) {
mkilivan 5:c8918e47c566 879 case FS_FAT12 :
mkilivan 5:c8918e47c566 880 bc = (UINT)clst; bc += bc / 2;
mkilivan 5:c8918e47c566 881 res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mkilivan 5:c8918e47c566 882 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 883 p = &fs->win[bc % SS(fs)];
mkilivan 5:c8918e47c566 884 *p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val;
mkilivan 5:c8918e47c566 885 bc++;
mkilivan 5:c8918e47c566 886 fs->wflag = 1;
mkilivan 5:c8918e47c566 887 res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mkilivan 5:c8918e47c566 888 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 889 p = &fs->win[bc % SS(fs)];
mkilivan 5:c8918e47c566 890 *p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F));
mkilivan 5:c8918e47c566 891 break;
mkilivan 5:c8918e47c566 892
mkilivan 5:c8918e47c566 893 case FS_FAT16 :
mkilivan 5:c8918e47c566 894 res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
mkilivan 5:c8918e47c566 895 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 896 p = &fs->win[clst * 2 % SS(fs)];
mkilivan 5:c8918e47c566 897 ST_WORD(p, (WORD)val);
mkilivan 5:c8918e47c566 898 break;
mkilivan 5:c8918e47c566 899
mkilivan 5:c8918e47c566 900 case FS_FAT32 :
mkilivan 5:c8918e47c566 901 res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
mkilivan 5:c8918e47c566 902 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 903 p = &fs->win[clst * 4 % SS(fs)];
mkilivan 5:c8918e47c566 904 val |= LD_DWORD(p) & 0xF0000000;
mkilivan 5:c8918e47c566 905 ST_DWORD(p, val);
mkilivan 5:c8918e47c566 906 break;
mkilivan 5:c8918e47c566 907
mkilivan 5:c8918e47c566 908 default :
mkilivan 5:c8918e47c566 909 res = FR_INT_ERR;
mkilivan 5:c8918e47c566 910 }
mkilivan 5:c8918e47c566 911 fs->wflag = 1;
mkilivan 5:c8918e47c566 912 }
mkilivan 5:c8918e47c566 913
mkilivan 5:c8918e47c566 914 return res;
mkilivan 5:c8918e47c566 915 }
mkilivan 5:c8918e47c566 916 #endif /* !_FS_READONLY */
mkilivan 5:c8918e47c566 917
mkilivan 5:c8918e47c566 918
mkilivan 5:c8918e47c566 919
mkilivan 5:c8918e47c566 920
mkilivan 5:c8918e47c566 921 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 922 /* FAT handling - Remove a cluster chain */
mkilivan 5:c8918e47c566 923 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 924 #if !_FS_READONLY
mkilivan 5:c8918e47c566 925 static
mkilivan 5:c8918e47c566 926 FRESULT remove_chain (
mkilivan 5:c8918e47c566 927 FATFS *fs, /* File system object */
mkilivan 5:c8918e47c566 928 DWORD clst /* Cluster# to remove a chain from */
mkilivan 5:c8918e47c566 929 )
mkilivan 5:c8918e47c566 930 {
mkilivan 5:c8918e47c566 931 FRESULT res;
mkilivan 5:c8918e47c566 932 DWORD nxt;
mkilivan 5:c8918e47c566 933 #if _USE_ERASE
mkilivan 5:c8918e47c566 934 DWORD scl = clst, ecl = clst, rt[2];
mkilivan 5:c8918e47c566 935 #endif
mkilivan 5:c8918e47c566 936
mkilivan 5:c8918e47c566 937 if (clst < 2 || clst >= fs->n_fatent) { /* Check range */
mkilivan 5:c8918e47c566 938 res = FR_INT_ERR;
mkilivan 5:c8918e47c566 939
mkilivan 5:c8918e47c566 940 } else {
mkilivan 5:c8918e47c566 941 res = FR_OK;
mkilivan 5:c8918e47c566 942 while (clst < fs->n_fatent) { /* Not a last link? */
mkilivan 5:c8918e47c566 943 nxt = get_fat(fs, clst); /* Get cluster status */
mkilivan 5:c8918e47c566 944 if (nxt == 0) break; /* Empty cluster? */
mkilivan 5:c8918e47c566 945 if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
mkilivan 5:c8918e47c566 946 if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
mkilivan 5:c8918e47c566 947 res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
mkilivan 5:c8918e47c566 948 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 949 if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */
mkilivan 5:c8918e47c566 950 fs->free_clust++;
mkilivan 5:c8918e47c566 951 fs->fsi_flag = 1;
mkilivan 5:c8918e47c566 952 }
mkilivan 5:c8918e47c566 953 #if _USE_ERASE
mkilivan 5:c8918e47c566 954 if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
mkilivan 5:c8918e47c566 955 ecl = nxt;
mkilivan 5:c8918e47c566 956 } else { /* End of contiguous clusters */
mkilivan 5:c8918e47c566 957 rt[0] = clust2sect(fs, scl); /* Start sector */
mkilivan 5:c8918e47c566 958 rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
mkilivan 5:c8918e47c566 959 disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, rt); /* Erase the block */
mkilivan 5:c8918e47c566 960 scl = ecl = nxt;
mkilivan 5:c8918e47c566 961 }
mkilivan 5:c8918e47c566 962 #endif
mkilivan 5:c8918e47c566 963 clst = nxt; /* Next cluster */
mkilivan 5:c8918e47c566 964 }
mkilivan 5:c8918e47c566 965 }
mkilivan 5:c8918e47c566 966
mkilivan 5:c8918e47c566 967 return res;
mkilivan 5:c8918e47c566 968 }
mkilivan 5:c8918e47c566 969 #endif
mkilivan 5:c8918e47c566 970
mkilivan 5:c8918e47c566 971
mkilivan 5:c8918e47c566 972
mkilivan 5:c8918e47c566 973
mkilivan 5:c8918e47c566 974 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 975 /* FAT handling - Stretch or Create a cluster chain */
mkilivan 5:c8918e47c566 976 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 977 #if !_FS_READONLY
mkilivan 5:c8918e47c566 978 static
mkilivan 5:c8918e47c566 979 DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
mkilivan 5:c8918e47c566 980 FATFS *fs, /* File system object */
mkilivan 5:c8918e47c566 981 DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
mkilivan 5:c8918e47c566 982 )
mkilivan 5:c8918e47c566 983 {
mkilivan 5:c8918e47c566 984 DWORD cs, ncl, scl;
mkilivan 5:c8918e47c566 985 FRESULT res;
mkilivan 5:c8918e47c566 986
mkilivan 5:c8918e47c566 987
mkilivan 5:c8918e47c566 988 if (clst == 0) { /* Create a new chain */
mkilivan 5:c8918e47c566 989 scl = fs->last_clust; /* Get suggested start point */
mkilivan 5:c8918e47c566 990 if (!scl || scl >= fs->n_fatent) scl = 1;
mkilivan 5:c8918e47c566 991 }
mkilivan 5:c8918e47c566 992 else { /* Stretch the current chain */
mkilivan 5:c8918e47c566 993 cs = get_fat(fs, clst); /* Check the cluster status */
mkilivan 5:c8918e47c566 994 if (cs < 2) return 1; /* It is an invalid cluster */
mkilivan 5:c8918e47c566 995 if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
mkilivan 5:c8918e47c566 996 scl = clst;
mkilivan 5:c8918e47c566 997 }
mkilivan 5:c8918e47c566 998
mkilivan 5:c8918e47c566 999 ncl = scl; /* Start cluster */
mkilivan 5:c8918e47c566 1000 for (;;) {
mkilivan 5:c8918e47c566 1001 ncl++; /* Next cluster */
mkilivan 5:c8918e47c566 1002 if (ncl >= fs->n_fatent) { /* Wrap around */
mkilivan 5:c8918e47c566 1003 ncl = 2;
mkilivan 5:c8918e47c566 1004 if (ncl > scl) return 0; /* No free cluster */
mkilivan 5:c8918e47c566 1005 }
mkilivan 5:c8918e47c566 1006 cs = get_fat(fs, ncl); /* Get the cluster status */
mkilivan 5:c8918e47c566 1007 if (cs == 0) break; /* Found a free cluster */
mkilivan 5:c8918e47c566 1008 if (cs == 0xFFFFFFFF || cs == 1)/* An error occurred */
mkilivan 5:c8918e47c566 1009 return cs;
mkilivan 5:c8918e47c566 1010 if (ncl == scl) return 0; /* No free cluster */
mkilivan 5:c8918e47c566 1011 }
mkilivan 5:c8918e47c566 1012
mkilivan 5:c8918e47c566 1013 res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
mkilivan 5:c8918e47c566 1014 if (res == FR_OK && clst != 0) {
mkilivan 5:c8918e47c566 1015 res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
mkilivan 5:c8918e47c566 1016 }
mkilivan 5:c8918e47c566 1017 if (res == FR_OK) {
mkilivan 5:c8918e47c566 1018 fs->last_clust = ncl; /* Update FSINFO */
mkilivan 5:c8918e47c566 1019 if (fs->free_clust != 0xFFFFFFFF) {
mkilivan 5:c8918e47c566 1020 fs->free_clust--;
mkilivan 5:c8918e47c566 1021 fs->fsi_flag = 1;
mkilivan 5:c8918e47c566 1022 }
mkilivan 5:c8918e47c566 1023 } else {
mkilivan 5:c8918e47c566 1024 ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
mkilivan 5:c8918e47c566 1025 }
mkilivan 5:c8918e47c566 1026
mkilivan 5:c8918e47c566 1027 return ncl; /* Return new cluster number or error code */
mkilivan 5:c8918e47c566 1028 }
mkilivan 5:c8918e47c566 1029 #endif /* !_FS_READONLY */
mkilivan 5:c8918e47c566 1030
mkilivan 5:c8918e47c566 1031
mkilivan 5:c8918e47c566 1032
mkilivan 5:c8918e47c566 1033 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1034 /* FAT handling - Convert offset into cluster with link map table */
mkilivan 5:c8918e47c566 1035 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1036
mkilivan 5:c8918e47c566 1037 #if _USE_FASTSEEK
mkilivan 5:c8918e47c566 1038 static
mkilivan 5:c8918e47c566 1039 DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
mkilivan 5:c8918e47c566 1040 FIL* fp, /* Pointer to the file object */
mkilivan 5:c8918e47c566 1041 DWORD ofs /* File offset to be converted to cluster# */
mkilivan 5:c8918e47c566 1042 )
mkilivan 5:c8918e47c566 1043 {
mkilivan 5:c8918e47c566 1044 DWORD cl, ncl, *tbl;
mkilivan 5:c8918e47c566 1045
mkilivan 5:c8918e47c566 1046
mkilivan 5:c8918e47c566 1047 tbl = fp->cltbl + 1; /* Top of CLMT */
mkilivan 5:c8918e47c566 1048 cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
mkilivan 5:c8918e47c566 1049 for (;;) {
mkilivan 5:c8918e47c566 1050 ncl = *tbl++; /* Number of cluters in the fragment */
mkilivan 5:c8918e47c566 1051 if (!ncl) return 0; /* End of table? (error) */
mkilivan 5:c8918e47c566 1052 if (cl < ncl) break; /* In this fragment? */
mkilivan 5:c8918e47c566 1053 cl -= ncl; tbl++; /* Next fragment */
mkilivan 5:c8918e47c566 1054 }
mkilivan 5:c8918e47c566 1055 return cl + *tbl; /* Return the cluster number */
mkilivan 5:c8918e47c566 1056 }
mkilivan 5:c8918e47c566 1057 #endif /* _USE_FASTSEEK */
mkilivan 5:c8918e47c566 1058
mkilivan 5:c8918e47c566 1059
mkilivan 5:c8918e47c566 1060
mkilivan 5:c8918e47c566 1061 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1062 /* Directory handling - Set directory index */
mkilivan 5:c8918e47c566 1063 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1064
mkilivan 5:c8918e47c566 1065 static
mkilivan 5:c8918e47c566 1066 FRESULT dir_sdi (
mkilivan 5:c8918e47c566 1067 FATFS_DIR *dj, /* Pointer to directory object */
mkilivan 5:c8918e47c566 1068 WORD idx /* Index of directory table */
mkilivan 5:c8918e47c566 1069 )
mkilivan 5:c8918e47c566 1070 {
mkilivan 5:c8918e47c566 1071 DWORD clst;
mkilivan 5:c8918e47c566 1072 WORD ic;
mkilivan 5:c8918e47c566 1073
mkilivan 5:c8918e47c566 1074
mkilivan 5:c8918e47c566 1075 dj->index = idx;
mkilivan 5:c8918e47c566 1076 clst = dj->sclust;
mkilivan 5:c8918e47c566 1077 if (clst == 1 || clst >= dj->fs->n_fatent) /* Check start cluster range */
mkilivan 5:c8918e47c566 1078 return FR_INT_ERR;
mkilivan 5:c8918e47c566 1079 if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
mkilivan 5:c8918e47c566 1080 clst = dj->fs->dirbase;
mkilivan 5:c8918e47c566 1081
mkilivan 5:c8918e47c566 1082 if (clst == 0) { /* Static table (root-dir in FAT12/16) */
mkilivan 5:c8918e47c566 1083 dj->clust = clst;
mkilivan 5:c8918e47c566 1084 if (idx >= dj->fs->n_rootdir) /* Index is out of range */
mkilivan 5:c8918e47c566 1085 return FR_INT_ERR;
mkilivan 5:c8918e47c566 1086 dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
mkilivan 5:c8918e47c566 1087 }
mkilivan 5:c8918e47c566 1088 else { /* Dynamic table (sub-dirs or root-dir in FAT32) */
mkilivan 5:c8918e47c566 1089 ic = SS(dj->fs) / SZ_DIR * dj->fs->csize; /* Entries per cluster */
mkilivan 5:c8918e47c566 1090 while (idx >= ic) { /* Follow cluster chain */
mkilivan 5:c8918e47c566 1091 clst = get_fat(dj->fs, clst); /* Get next cluster */
mkilivan 5:c8918e47c566 1092 if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
mkilivan 5:c8918e47c566 1093 if (clst < 2 || clst >= dj->fs->n_fatent) /* Reached to end of table or int error */
mkilivan 5:c8918e47c566 1094 return FR_INT_ERR;
mkilivan 5:c8918e47c566 1095 idx -= ic;
mkilivan 5:c8918e47c566 1096 }
mkilivan 5:c8918e47c566 1097 dj->clust = clst;
mkilivan 5:c8918e47c566 1098 dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
mkilivan 5:c8918e47c566 1099 }
mkilivan 5:c8918e47c566 1100
mkilivan 5:c8918e47c566 1101 dj->dir = dj->fs->win + (idx % (SS(dj->fs) / SZ_DIR)) * SZ_DIR; /* Ptr to the entry in the sector */
mkilivan 5:c8918e47c566 1102
mkilivan 5:c8918e47c566 1103 return FR_OK; /* Seek succeeded */
mkilivan 5:c8918e47c566 1104 }
mkilivan 5:c8918e47c566 1105
mkilivan 5:c8918e47c566 1106
mkilivan 5:c8918e47c566 1107
mkilivan 5:c8918e47c566 1108
mkilivan 5:c8918e47c566 1109 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1110 /* Directory handling - Move directory table index next */
mkilivan 5:c8918e47c566 1111 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1112
mkilivan 5:c8918e47c566 1113 static
mkilivan 5:c8918e47c566 1114 FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not stretch */
mkilivan 5:c8918e47c566 1115 FATFS_DIR *dj, /* Pointer to directory object */
mkilivan 5:c8918e47c566 1116 int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
mkilivan 5:c8918e47c566 1117 )
mkilivan 5:c8918e47c566 1118 {
mkilivan 5:c8918e47c566 1119 DWORD clst;
mkilivan 5:c8918e47c566 1120 WORD i;
mkilivan 5:c8918e47c566 1121
mkilivan 5:c8918e47c566 1122
mkilivan 5:c8918e47c566 1123 stretch = stretch; /* To suppress warning on read-only cfg. */
mkilivan 5:c8918e47c566 1124 i = dj->index + 1;
mkilivan 5:c8918e47c566 1125 if (!i || !dj->sect) /* Report EOT when index has reached 65535 */
mkilivan 5:c8918e47c566 1126 return FR_NO_FILE;
mkilivan 5:c8918e47c566 1127
mkilivan 5:c8918e47c566 1128 if (!(i % (SS(dj->fs) / SZ_DIR))) { /* Sector changed? */
mkilivan 5:c8918e47c566 1129 dj->sect++; /* Next sector */
mkilivan 5:c8918e47c566 1130
mkilivan 5:c8918e47c566 1131 if (dj->clust == 0) { /* Static table */
mkilivan 5:c8918e47c566 1132 if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */
mkilivan 5:c8918e47c566 1133 return FR_NO_FILE;
mkilivan 5:c8918e47c566 1134 }
mkilivan 5:c8918e47c566 1135 else { /* Dynamic table */
mkilivan 5:c8918e47c566 1136 if (((i / (SS(dj->fs) / SZ_DIR)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
mkilivan 5:c8918e47c566 1137 clst = get_fat(dj->fs, dj->clust); /* Get next cluster */
mkilivan 5:c8918e47c566 1138 if (clst <= 1) return FR_INT_ERR;
mkilivan 5:c8918e47c566 1139 if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mkilivan 5:c8918e47c566 1140 if (clst >= dj->fs->n_fatent) { /* When it reached end of dynamic table */
mkilivan 5:c8918e47c566 1141 #if !_FS_READONLY
mkilivan 5:c8918e47c566 1142 BYTE c;
mkilivan 5:c8918e47c566 1143 if (!stretch) return FR_NO_FILE; /* When do not stretch, report EOT */
mkilivan 5:c8918e47c566 1144 clst = create_chain(dj->fs, dj->clust); /* Stretch cluster chain */
mkilivan 5:c8918e47c566 1145 if (clst == 0) return FR_DENIED; /* No free cluster */
mkilivan 5:c8918e47c566 1146 if (clst == 1) return FR_INT_ERR;
mkilivan 5:c8918e47c566 1147 if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mkilivan 5:c8918e47c566 1148 /* Clean-up stretched table */
mkilivan 5:c8918e47c566 1149 if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */
mkilivan 5:c8918e47c566 1150 mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */
mkilivan 5:c8918e47c566 1151 dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */
mkilivan 5:c8918e47c566 1152 for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */
mkilivan 5:c8918e47c566 1153 dj->fs->wflag = 1;
mkilivan 5:c8918e47c566 1154 if (move_window(dj->fs, 0)) return FR_DISK_ERR;
mkilivan 5:c8918e47c566 1155 dj->fs->winsect++;
mkilivan 5:c8918e47c566 1156 }
mkilivan 5:c8918e47c566 1157 dj->fs->winsect -= c; /* Rewind window address */
mkilivan 5:c8918e47c566 1158 #else
mkilivan 5:c8918e47c566 1159 return FR_NO_FILE; /* Report EOT */
mkilivan 5:c8918e47c566 1160 #endif
mkilivan 5:c8918e47c566 1161 }
mkilivan 5:c8918e47c566 1162 dj->clust = clst; /* Initialize data for new cluster */
mkilivan 5:c8918e47c566 1163 dj->sect = clust2sect(dj->fs, clst);
mkilivan 5:c8918e47c566 1164 }
mkilivan 5:c8918e47c566 1165 }
mkilivan 5:c8918e47c566 1166 }
mkilivan 5:c8918e47c566 1167
mkilivan 5:c8918e47c566 1168 dj->index = i;
mkilivan 5:c8918e47c566 1169 dj->dir = dj->fs->win + (i % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;
mkilivan 5:c8918e47c566 1170
mkilivan 5:c8918e47c566 1171 return FR_OK;
mkilivan 5:c8918e47c566 1172 }
mkilivan 5:c8918e47c566 1173
mkilivan 5:c8918e47c566 1174
mkilivan 5:c8918e47c566 1175
mkilivan 5:c8918e47c566 1176
mkilivan 5:c8918e47c566 1177 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1178 /* Directory handling - Load/Store start cluster number */
mkilivan 5:c8918e47c566 1179 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1180
mkilivan 5:c8918e47c566 1181 static
mkilivan 5:c8918e47c566 1182 DWORD ld_clust (
mkilivan 5:c8918e47c566 1183 FATFS *fs, /* Pointer to the fs object */
mkilivan 5:c8918e47c566 1184 BYTE *dir /* Pointer to the directory entry */
mkilivan 5:c8918e47c566 1185 )
mkilivan 5:c8918e47c566 1186 {
mkilivan 5:c8918e47c566 1187 DWORD cl;
mkilivan 5:c8918e47c566 1188
mkilivan 5:c8918e47c566 1189 cl = LD_WORD(dir+DIR_FstClusLO);
mkilivan 5:c8918e47c566 1190 if (fs->fs_type == FS_FAT32)
mkilivan 5:c8918e47c566 1191 cl |= (DWORD)LD_WORD(dir+DIR_FstClusHI) << 16;
mkilivan 5:c8918e47c566 1192
mkilivan 5:c8918e47c566 1193 return cl;
mkilivan 5:c8918e47c566 1194 }
mkilivan 5:c8918e47c566 1195
mkilivan 5:c8918e47c566 1196
mkilivan 5:c8918e47c566 1197 #if !_FS_READONLY
mkilivan 5:c8918e47c566 1198 static
mkilivan 5:c8918e47c566 1199 void st_clust (
mkilivan 5:c8918e47c566 1200 BYTE *dir, /* Pointer to the directory entry */
mkilivan 5:c8918e47c566 1201 DWORD cl /* Value to be set */
mkilivan 5:c8918e47c566 1202 )
mkilivan 5:c8918e47c566 1203 {
mkilivan 5:c8918e47c566 1204 ST_WORD(dir+DIR_FstClusLO, cl);
mkilivan 5:c8918e47c566 1205 ST_WORD(dir+DIR_FstClusHI, cl >> 16);
mkilivan 5:c8918e47c566 1206 }
mkilivan 5:c8918e47c566 1207 #endif
mkilivan 5:c8918e47c566 1208
mkilivan 5:c8918e47c566 1209
mkilivan 5:c8918e47c566 1210
mkilivan 5:c8918e47c566 1211 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1212 /* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
mkilivan 5:c8918e47c566 1213 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1214 #if _USE_LFN
mkilivan 5:c8918e47c566 1215 static
mkilivan 5:c8918e47c566 1216 const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN chars in the directory entry */
mkilivan 5:c8918e47c566 1217
mkilivan 5:c8918e47c566 1218
mkilivan 5:c8918e47c566 1219 static
mkilivan 5:c8918e47c566 1220 int cmp_lfn ( /* 1:Matched, 0:Not matched */
mkilivan 5:c8918e47c566 1221 WCHAR *lfnbuf, /* Pointer to the LFN to be compared */
mkilivan 5:c8918e47c566 1222 BYTE *dir /* Pointer to the directory entry containing a part of LFN */
mkilivan 5:c8918e47c566 1223 )
mkilivan 5:c8918e47c566 1224 {
mkilivan 5:c8918e47c566 1225 UINT i, s;
mkilivan 5:c8918e47c566 1226 WCHAR wc, uc;
mkilivan 5:c8918e47c566 1227
mkilivan 5:c8918e47c566 1228
mkilivan 5:c8918e47c566 1229 i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
mkilivan 5:c8918e47c566 1230 s = 0; wc = 1;
mkilivan 5:c8918e47c566 1231 do {
mkilivan 5:c8918e47c566 1232 uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
mkilivan 5:c8918e47c566 1233 if (wc) { /* Last char has not been processed */
mkilivan 5:c8918e47c566 1234 wc = ff_wtoupper(uc); /* Convert it to upper case */
mkilivan 5:c8918e47c566 1235 if (i >= _MAX_LFN || wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
mkilivan 5:c8918e47c566 1236 return 0; /* Not matched */
mkilivan 5:c8918e47c566 1237 } else {
mkilivan 5:c8918e47c566 1238 if (uc != 0xFFFF) return 0; /* Check filler */
mkilivan 5:c8918e47c566 1239 }
mkilivan 5:c8918e47c566 1240 } while (++s < 13); /* Repeat until all chars in the entry are checked */
mkilivan 5:c8918e47c566 1241
mkilivan 5:c8918e47c566 1242 if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) /* Last segment matched but different length */
mkilivan 5:c8918e47c566 1243 return 0;
mkilivan 5:c8918e47c566 1244
mkilivan 5:c8918e47c566 1245 return 1; /* The part of LFN matched */
mkilivan 5:c8918e47c566 1246 }
mkilivan 5:c8918e47c566 1247
mkilivan 5:c8918e47c566 1248
mkilivan 5:c8918e47c566 1249
mkilivan 5:c8918e47c566 1250 static
mkilivan 5:c8918e47c566 1251 int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
mkilivan 5:c8918e47c566 1252 WCHAR *lfnbuf, /* Pointer to the Unicode-LFN buffer */
mkilivan 5:c8918e47c566 1253 BYTE *dir /* Pointer to the directory entry */
mkilivan 5:c8918e47c566 1254 )
mkilivan 5:c8918e47c566 1255 {
mkilivan 5:c8918e47c566 1256 UINT i, s;
mkilivan 5:c8918e47c566 1257 WCHAR wc, uc;
mkilivan 5:c8918e47c566 1258
mkilivan 5:c8918e47c566 1259
mkilivan 5:c8918e47c566 1260 i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
mkilivan 5:c8918e47c566 1261
mkilivan 5:c8918e47c566 1262 s = 0; wc = 1;
mkilivan 5:c8918e47c566 1263 do {
mkilivan 5:c8918e47c566 1264 uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
mkilivan 5:c8918e47c566 1265 if (wc) { /* Last char has not been processed */
mkilivan 5:c8918e47c566 1266 if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mkilivan 5:c8918e47c566 1267 lfnbuf[i++] = wc = uc; /* Store it */
mkilivan 5:c8918e47c566 1268 } else {
mkilivan 5:c8918e47c566 1269 if (uc != 0xFFFF) return 0; /* Check filler */
mkilivan 5:c8918e47c566 1270 }
mkilivan 5:c8918e47c566 1271 } while (++s < 13); /* Read all character in the entry */
mkilivan 5:c8918e47c566 1272
mkilivan 5:c8918e47c566 1273 if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
mkilivan 5:c8918e47c566 1274 if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mkilivan 5:c8918e47c566 1275 lfnbuf[i] = 0;
mkilivan 5:c8918e47c566 1276 }
mkilivan 5:c8918e47c566 1277
mkilivan 5:c8918e47c566 1278 return 1;
mkilivan 5:c8918e47c566 1279 }
mkilivan 5:c8918e47c566 1280
mkilivan 5:c8918e47c566 1281
mkilivan 5:c8918e47c566 1282 #if !_FS_READONLY
mkilivan 5:c8918e47c566 1283 static
mkilivan 5:c8918e47c566 1284 void fit_lfn (
mkilivan 5:c8918e47c566 1285 const WCHAR *lfnbuf, /* Pointer to the LFN buffer */
mkilivan 5:c8918e47c566 1286 BYTE *dir, /* Pointer to the directory entry */
mkilivan 5:c8918e47c566 1287 BYTE ord, /* LFN order (1-20) */
mkilivan 5:c8918e47c566 1288 BYTE sum /* SFN sum */
mkilivan 5:c8918e47c566 1289 )
mkilivan 5:c8918e47c566 1290 {
mkilivan 5:c8918e47c566 1291 UINT i, s;
mkilivan 5:c8918e47c566 1292 WCHAR wc;
mkilivan 5:c8918e47c566 1293
mkilivan 5:c8918e47c566 1294
mkilivan 5:c8918e47c566 1295 dir[LDIR_Chksum] = sum; /* Set check sum */
mkilivan 5:c8918e47c566 1296 dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
mkilivan 5:c8918e47c566 1297 dir[LDIR_Type] = 0;
mkilivan 5:c8918e47c566 1298 ST_WORD(dir+LDIR_FstClusLO, 0);
mkilivan 5:c8918e47c566 1299
mkilivan 5:c8918e47c566 1300 i = (ord - 1) * 13; /* Get offset in the LFN buffer */
mkilivan 5:c8918e47c566 1301 s = wc = 0;
mkilivan 5:c8918e47c566 1302 do {
mkilivan 5:c8918e47c566 1303 if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */
mkilivan 5:c8918e47c566 1304 ST_WORD(dir+LfnOfs[s], wc); /* Put it */
mkilivan 5:c8918e47c566 1305 if (!wc) wc = 0xFFFF; /* Padding chars following last char */
mkilivan 5:c8918e47c566 1306 } while (++s < 13);
mkilivan 5:c8918e47c566 1307 if (wc == 0xFFFF || !lfnbuf[i]) ord |= LLE; /* Bottom LFN part is the start of LFN sequence */
mkilivan 5:c8918e47c566 1308 dir[LDIR_Ord] = ord; /* Set the LFN order */
mkilivan 5:c8918e47c566 1309 }
mkilivan 5:c8918e47c566 1310
mkilivan 5:c8918e47c566 1311 #endif
mkilivan 5:c8918e47c566 1312 #endif
mkilivan 5:c8918e47c566 1313
mkilivan 5:c8918e47c566 1314
mkilivan 5:c8918e47c566 1315
mkilivan 5:c8918e47c566 1316 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1317 /* Create numbered name */
mkilivan 5:c8918e47c566 1318 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1319 #if _USE_LFN
mkilivan 5:c8918e47c566 1320 void gen_numname (
mkilivan 5:c8918e47c566 1321 BYTE *dst, /* Pointer to generated SFN */
mkilivan 5:c8918e47c566 1322 const BYTE *src, /* Pointer to source SFN to be modified */
mkilivan 5:c8918e47c566 1323 const WCHAR *lfn, /* Pointer to LFN */
mkilivan 5:c8918e47c566 1324 WORD seq /* Sequence number */
mkilivan 5:c8918e47c566 1325 )
mkilivan 5:c8918e47c566 1326 {
mkilivan 5:c8918e47c566 1327 BYTE ns[8], c;
mkilivan 5:c8918e47c566 1328 UINT i, j;
mkilivan 5:c8918e47c566 1329
mkilivan 5:c8918e47c566 1330
mkilivan 5:c8918e47c566 1331 mem_cpy(dst, src, 11);
mkilivan 5:c8918e47c566 1332
mkilivan 5:c8918e47c566 1333 if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
mkilivan 5:c8918e47c566 1334 do seq = (seq >> 1) + (seq << 15) + (WORD)*lfn++; while (*lfn);
mkilivan 5:c8918e47c566 1335 }
mkilivan 5:c8918e47c566 1336
mkilivan 5:c8918e47c566 1337 /* itoa (hexdecimal) */
mkilivan 5:c8918e47c566 1338 i = 7;
mkilivan 5:c8918e47c566 1339 do {
mkilivan 5:c8918e47c566 1340 c = (seq % 16) + '0';
mkilivan 5:c8918e47c566 1341 if (c > '9') c += 7;
mkilivan 5:c8918e47c566 1342 ns[i--] = c;
mkilivan 5:c8918e47c566 1343 seq /= 16;
mkilivan 5:c8918e47c566 1344 } while (seq);
mkilivan 5:c8918e47c566 1345 ns[i] = '~';
mkilivan 5:c8918e47c566 1346
mkilivan 5:c8918e47c566 1347 /* Append the number */
mkilivan 5:c8918e47c566 1348 for (j = 0; j < i && dst[j] != ' '; j++) {
mkilivan 5:c8918e47c566 1349 if (IsDBCS1(dst[j])) {
mkilivan 5:c8918e47c566 1350 if (j == i - 1) break;
mkilivan 5:c8918e47c566 1351 j++;
mkilivan 5:c8918e47c566 1352 }
mkilivan 5:c8918e47c566 1353 }
mkilivan 5:c8918e47c566 1354 do {
mkilivan 5:c8918e47c566 1355 dst[j++] = (i < 8) ? ns[i++] : ' ';
mkilivan 5:c8918e47c566 1356 } while (j < 8);
mkilivan 5:c8918e47c566 1357 }
mkilivan 5:c8918e47c566 1358 #endif
mkilivan 5:c8918e47c566 1359
mkilivan 5:c8918e47c566 1360
mkilivan 5:c8918e47c566 1361
mkilivan 5:c8918e47c566 1362
mkilivan 5:c8918e47c566 1363 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1364 /* Calculate sum of an SFN */
mkilivan 5:c8918e47c566 1365 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1366 #if _USE_LFN
mkilivan 5:c8918e47c566 1367 static
mkilivan 5:c8918e47c566 1368 BYTE sum_sfn (
mkilivan 5:c8918e47c566 1369 const BYTE *dir /* Ptr to directory entry */
mkilivan 5:c8918e47c566 1370 )
mkilivan 5:c8918e47c566 1371 {
mkilivan 5:c8918e47c566 1372 BYTE sum = 0;
mkilivan 5:c8918e47c566 1373 UINT n = 11;
mkilivan 5:c8918e47c566 1374
mkilivan 5:c8918e47c566 1375 do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
mkilivan 5:c8918e47c566 1376 return sum;
mkilivan 5:c8918e47c566 1377 }
mkilivan 5:c8918e47c566 1378 #endif
mkilivan 5:c8918e47c566 1379
mkilivan 5:c8918e47c566 1380
mkilivan 5:c8918e47c566 1381
mkilivan 5:c8918e47c566 1382
mkilivan 5:c8918e47c566 1383 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1384 /* Directory handling - Find an object in the directory */
mkilivan 5:c8918e47c566 1385 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1386
mkilivan 5:c8918e47c566 1387 static
mkilivan 5:c8918e47c566 1388 FRESULT dir_find (
mkilivan 5:c8918e47c566 1389 FATFS_DIR *dj /* Pointer to the directory object linked to the file name */
mkilivan 5:c8918e47c566 1390 )
mkilivan 5:c8918e47c566 1391 {
mkilivan 5:c8918e47c566 1392 FRESULT res;
mkilivan 5:c8918e47c566 1393 BYTE c, *dir;
mkilivan 5:c8918e47c566 1394 #if _USE_LFN
mkilivan 5:c8918e47c566 1395 BYTE a, ord, sum;
mkilivan 5:c8918e47c566 1396 #endif
mkilivan 5:c8918e47c566 1397
mkilivan 5:c8918e47c566 1398 res = dir_sdi(dj, 0); /* Rewind directory object */
mkilivan 5:c8918e47c566 1399 if (res != FR_OK) return res;
mkilivan 5:c8918e47c566 1400
mkilivan 5:c8918e47c566 1401 #if _USE_LFN
mkilivan 5:c8918e47c566 1402 ord = sum = 0xFF;
mkilivan 5:c8918e47c566 1403 #endif
mkilivan 5:c8918e47c566 1404 do {
mkilivan 5:c8918e47c566 1405 res = move_window(dj->fs, dj->sect);
mkilivan 5:c8918e47c566 1406 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 1407 dir = dj->dir; /* Ptr to the directory entry of current index */
mkilivan 5:c8918e47c566 1408 c = dir[DIR_Name];
mkilivan 5:c8918e47c566 1409 if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mkilivan 5:c8918e47c566 1410 #if _USE_LFN /* LFN configuration */
mkilivan 5:c8918e47c566 1411 a = dir[DIR_Attr] & AM_MASK;
mkilivan 5:c8918e47c566 1412 if (c == DDE || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
mkilivan 5:c8918e47c566 1413 ord = 0xFF;
mkilivan 5:c8918e47c566 1414 } else {
mkilivan 5:c8918e47c566 1415 if (a == AM_LFN) { /* An LFN entry is found */
mkilivan 5:c8918e47c566 1416 if (dj->lfn) {
mkilivan 5:c8918e47c566 1417 if (c & LLE) { /* Is it start of LFN sequence? */
mkilivan 5:c8918e47c566 1418 sum = dir[LDIR_Chksum];
mkilivan 5:c8918e47c566 1419 c &= ~LLE; ord = c; /* LFN start order */
mkilivan 5:c8918e47c566 1420 dj->lfn_idx = dj->index;
mkilivan 5:c8918e47c566 1421 }
mkilivan 5:c8918e47c566 1422 /* Check validity of the LFN entry and compare it with given name */
mkilivan 5:c8918e47c566 1423 ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
mkilivan 5:c8918e47c566 1424 }
mkilivan 5:c8918e47c566 1425 } else { /* An SFN entry is found */
mkilivan 5:c8918e47c566 1426 if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
mkilivan 5:c8918e47c566 1427 ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */
mkilivan 5:c8918e47c566 1428 if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */
mkilivan 5:c8918e47c566 1429 }
mkilivan 5:c8918e47c566 1430 }
mkilivan 5:c8918e47c566 1431 #else /* Non LFN configuration */
mkilivan 5:c8918e47c566 1432 if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
mkilivan 5:c8918e47c566 1433 break;
mkilivan 5:c8918e47c566 1434 #endif
mkilivan 5:c8918e47c566 1435 res = dir_next(dj, 0); /* Next entry */
mkilivan 5:c8918e47c566 1436 } while (res == FR_OK);
mkilivan 5:c8918e47c566 1437
mkilivan 5:c8918e47c566 1438 return res;
mkilivan 5:c8918e47c566 1439 }
mkilivan 5:c8918e47c566 1440
mkilivan 5:c8918e47c566 1441
mkilivan 5:c8918e47c566 1442
mkilivan 5:c8918e47c566 1443
mkilivan 5:c8918e47c566 1444 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1445 /* Read an object from the directory */
mkilivan 5:c8918e47c566 1446 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1447 #if _FS_MINIMIZE <= 1
mkilivan 5:c8918e47c566 1448 static
mkilivan 5:c8918e47c566 1449 FRESULT dir_read (
mkilivan 5:c8918e47c566 1450 FATFS_DIR *dj /* Pointer to the directory object that pointing the entry to be read */
mkilivan 5:c8918e47c566 1451 )
mkilivan 5:c8918e47c566 1452 {
mkilivan 5:c8918e47c566 1453 FRESULT res;
mkilivan 5:c8918e47c566 1454 BYTE c, *dir;
mkilivan 5:c8918e47c566 1455 #if _USE_LFN
mkilivan 5:c8918e47c566 1456 BYTE a, ord = 0xFF, sum = 0xFF;
mkilivan 5:c8918e47c566 1457 #endif
mkilivan 5:c8918e47c566 1458
mkilivan 5:c8918e47c566 1459 res = FR_NO_FILE;
mkilivan 5:c8918e47c566 1460 while (dj->sect) {
mkilivan 5:c8918e47c566 1461 res = move_window(dj->fs, dj->sect);
mkilivan 5:c8918e47c566 1462 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 1463 dir = dj->dir; /* Ptr to the directory entry of current index */
mkilivan 5:c8918e47c566 1464 c = dir[DIR_Name];
mkilivan 5:c8918e47c566 1465 if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mkilivan 5:c8918e47c566 1466 #if _USE_LFN /* LFN configuration */
mkilivan 5:c8918e47c566 1467 a = dir[DIR_Attr] & AM_MASK;
mkilivan 5:c8918e47c566 1468 if (c == DDE || (!_FS_RPATH && c == '.') || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
mkilivan 5:c8918e47c566 1469 ord = 0xFF;
mkilivan 5:c8918e47c566 1470 } else {
mkilivan 5:c8918e47c566 1471 if (a == AM_LFN) { /* An LFN entry is found */
mkilivan 5:c8918e47c566 1472 if (c & LLE) { /* Is it start of LFN sequence? */
mkilivan 5:c8918e47c566 1473 sum = dir[LDIR_Chksum];
mkilivan 5:c8918e47c566 1474 c &= ~LLE; ord = c;
mkilivan 5:c8918e47c566 1475 dj->lfn_idx = dj->index;
mkilivan 5:c8918e47c566 1476 }
mkilivan 5:c8918e47c566 1477 /* Check LFN validity and capture it */
mkilivan 5:c8918e47c566 1478 ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
mkilivan 5:c8918e47c566 1479 } else { /* An SFN entry is found */
mkilivan 5:c8918e47c566 1480 if (ord || sum != sum_sfn(dir)) /* Is there a valid LFN? */
mkilivan 5:c8918e47c566 1481 dj->lfn_idx = 0xFFFF; /* It has no LFN. */
mkilivan 5:c8918e47c566 1482 break;
mkilivan 5:c8918e47c566 1483 }
mkilivan 5:c8918e47c566 1484 }
mkilivan 5:c8918e47c566 1485 #else /* Non LFN configuration */
mkilivan 5:c8918e47c566 1486 if (c != DDE && (_FS_RPATH || c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
mkilivan 5:c8918e47c566 1487 break;
mkilivan 5:c8918e47c566 1488 #endif
mkilivan 5:c8918e47c566 1489 res = dir_next(dj, 0); /* Next entry */
mkilivan 5:c8918e47c566 1490 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 1491 }
mkilivan 5:c8918e47c566 1492
mkilivan 5:c8918e47c566 1493 if (res != FR_OK) dj->sect = 0;
mkilivan 5:c8918e47c566 1494
mkilivan 5:c8918e47c566 1495 return res;
mkilivan 5:c8918e47c566 1496 }
mkilivan 5:c8918e47c566 1497 #endif
mkilivan 5:c8918e47c566 1498
mkilivan 5:c8918e47c566 1499
mkilivan 5:c8918e47c566 1500
mkilivan 5:c8918e47c566 1501 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1502 /* Register an object to the directory */
mkilivan 5:c8918e47c566 1503 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1504 #if !_FS_READONLY
mkilivan 5:c8918e47c566 1505 static
mkilivan 5:c8918e47c566 1506 FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
mkilivan 5:c8918e47c566 1507 FATFS_DIR *dj /* Target directory with object name to be created */
mkilivan 5:c8918e47c566 1508 )
mkilivan 5:c8918e47c566 1509 {
mkilivan 5:c8918e47c566 1510 FRESULT res;
mkilivan 5:c8918e47c566 1511 BYTE c, *dir;
mkilivan 5:c8918e47c566 1512 #if _USE_LFN /* LFN configuration */
mkilivan 5:c8918e47c566 1513 WORD n, ne, is;
mkilivan 5:c8918e47c566 1514 BYTE sn[12], *fn, sum;
mkilivan 5:c8918e47c566 1515 WCHAR *lfn;
mkilivan 5:c8918e47c566 1516
mkilivan 5:c8918e47c566 1517
mkilivan 5:c8918e47c566 1518 fn = dj->fn; lfn = dj->lfn;
mkilivan 5:c8918e47c566 1519 mem_cpy(sn, fn, 12);
mkilivan 5:c8918e47c566 1520
mkilivan 5:c8918e47c566 1521 if (_FS_RPATH && (sn[NS] & NS_DOT)) /* Cannot create dot entry */
mkilivan 5:c8918e47c566 1522 return FR_INVALID_NAME;
mkilivan 5:c8918e47c566 1523
mkilivan 5:c8918e47c566 1524 if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
mkilivan 5:c8918e47c566 1525 fn[NS] = 0; dj->lfn = 0; /* Find only SFN */
mkilivan 5:c8918e47c566 1526 for (n = 1; n < 100; n++) {
mkilivan 5:c8918e47c566 1527 gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
mkilivan 5:c8918e47c566 1528 res = dir_find(dj); /* Check if the name collides with existing SFN */
mkilivan 5:c8918e47c566 1529 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 1530 }
mkilivan 5:c8918e47c566 1531 if (n == 100) return FR_DENIED; /* Abort if too many collisions */
mkilivan 5:c8918e47c566 1532 if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
mkilivan 5:c8918e47c566 1533 fn[NS] = sn[NS]; dj->lfn = lfn;
mkilivan 5:c8918e47c566 1534 }
mkilivan 5:c8918e47c566 1535
mkilivan 5:c8918e47c566 1536 if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve an SFN + LFN entries. */
mkilivan 5:c8918e47c566 1537 for (ne = 0; lfn[ne]; ne++) ;
mkilivan 5:c8918e47c566 1538 ne = (ne + 25) / 13;
mkilivan 5:c8918e47c566 1539 } else { /* Otherwise reserve only an SFN entry. */
mkilivan 5:c8918e47c566 1540 ne = 1;
mkilivan 5:c8918e47c566 1541 }
mkilivan 5:c8918e47c566 1542
mkilivan 5:c8918e47c566 1543 /* Reserve contiguous entries */
mkilivan 5:c8918e47c566 1544 res = dir_sdi(dj, 0);
mkilivan 5:c8918e47c566 1545 if (res != FR_OK) return res;
mkilivan 5:c8918e47c566 1546 n = is = 0;
mkilivan 5:c8918e47c566 1547 do {
mkilivan 5:c8918e47c566 1548 res = move_window(dj->fs, dj->sect);
mkilivan 5:c8918e47c566 1549 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 1550 c = *dj->dir; /* Check the entry status */
mkilivan 5:c8918e47c566 1551 if (c == DDE || c == 0) { /* Is it a blank entry? */
mkilivan 5:c8918e47c566 1552 if (n == 0) is = dj->index; /* First index of the contiguous entry */
mkilivan 5:c8918e47c566 1553 if (++n == ne) break; /* A contiguous entry that required count is found */
mkilivan 5:c8918e47c566 1554 } else {
mkilivan 5:c8918e47c566 1555 n = 0; /* Not a blank entry. Restart to search */
mkilivan 5:c8918e47c566 1556 }
mkilivan 5:c8918e47c566 1557 res = dir_next(dj, 1); /* Next entry with table stretch */
mkilivan 5:c8918e47c566 1558 } while (res == FR_OK);
mkilivan 5:c8918e47c566 1559
mkilivan 5:c8918e47c566 1560 if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */
mkilivan 5:c8918e47c566 1561 res = dir_sdi(dj, is);
mkilivan 5:c8918e47c566 1562 if (res == FR_OK) {
mkilivan 5:c8918e47c566 1563 sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */
mkilivan 5:c8918e47c566 1564 ne--;
mkilivan 5:c8918e47c566 1565 do { /* Store LFN entries in bottom first */
mkilivan 5:c8918e47c566 1566 res = move_window(dj->fs, dj->sect);
mkilivan 5:c8918e47c566 1567 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 1568 fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
mkilivan 5:c8918e47c566 1569 dj->fs->wflag = 1;
mkilivan 5:c8918e47c566 1570 res = dir_next(dj, 0); /* Next entry */
mkilivan 5:c8918e47c566 1571 } while (res == FR_OK && --ne);
mkilivan 5:c8918e47c566 1572 }
mkilivan 5:c8918e47c566 1573 }
mkilivan 5:c8918e47c566 1574
mkilivan 5:c8918e47c566 1575 #else /* Non LFN configuration */
mkilivan 5:c8918e47c566 1576 res = dir_sdi(dj, 0);
mkilivan 5:c8918e47c566 1577 if (res == FR_OK) {
mkilivan 5:c8918e47c566 1578 do { /* Find a blank entry for the SFN */
mkilivan 5:c8918e47c566 1579 res = move_window(dj->fs, dj->sect);
mkilivan 5:c8918e47c566 1580 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 1581 c = *dj->dir;
mkilivan 5:c8918e47c566 1582 if (c == DDE || c == 0) break; /* Is it a blank entry? */
mkilivan 5:c8918e47c566 1583 res = dir_next(dj, 1); /* Next entry with table stretch */
mkilivan 5:c8918e47c566 1584 } while (res == FR_OK);
mkilivan 5:c8918e47c566 1585 }
mkilivan 5:c8918e47c566 1586 #endif
mkilivan 5:c8918e47c566 1587
mkilivan 5:c8918e47c566 1588 if (res == FR_OK) { /* Initialize the SFN entry */
mkilivan 5:c8918e47c566 1589 res = move_window(dj->fs, dj->sect);
mkilivan 5:c8918e47c566 1590 if (res == FR_OK) {
mkilivan 5:c8918e47c566 1591 dir = dj->dir;
mkilivan 5:c8918e47c566 1592 mem_set(dir, 0, SZ_DIR); /* Clean the entry */
mkilivan 5:c8918e47c566 1593 mem_cpy(dir, dj->fn, 11); /* Put SFN */
mkilivan 5:c8918e47c566 1594 #if _USE_LFN
mkilivan 5:c8918e47c566 1595 dir[DIR_NTres] = *(dj->fn+NS) & (NS_BODY | NS_EXT); /* Put NT flag */
mkilivan 5:c8918e47c566 1596 #endif
mkilivan 5:c8918e47c566 1597 dj->fs->wflag = 1;
mkilivan 5:c8918e47c566 1598 }
mkilivan 5:c8918e47c566 1599 }
mkilivan 5:c8918e47c566 1600
mkilivan 5:c8918e47c566 1601 return res;
mkilivan 5:c8918e47c566 1602 }
mkilivan 5:c8918e47c566 1603 #endif /* !_FS_READONLY */
mkilivan 5:c8918e47c566 1604
mkilivan 5:c8918e47c566 1605
mkilivan 5:c8918e47c566 1606
mkilivan 5:c8918e47c566 1607
mkilivan 5:c8918e47c566 1608 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1609 /* Remove an object from the directory */
mkilivan 5:c8918e47c566 1610 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1611 #if !_FS_READONLY && !_FS_MINIMIZE
mkilivan 5:c8918e47c566 1612 static
mkilivan 5:c8918e47c566 1613 FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
mkilivan 5:c8918e47c566 1614 FATFS_DIR *dj /* Directory object pointing the entry to be removed */
mkilivan 5:c8918e47c566 1615 )
mkilivan 5:c8918e47c566 1616 {
mkilivan 5:c8918e47c566 1617 FRESULT res;
mkilivan 5:c8918e47c566 1618 #if _USE_LFN /* LFN configuration */
mkilivan 5:c8918e47c566 1619 WORD i;
mkilivan 5:c8918e47c566 1620
mkilivan 5:c8918e47c566 1621 i = dj->index; /* SFN index */
mkilivan 5:c8918e47c566 1622 res = dir_sdi(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */
mkilivan 5:c8918e47c566 1623 if (res == FR_OK) {
mkilivan 5:c8918e47c566 1624 do {
mkilivan 5:c8918e47c566 1625 res = move_window(dj->fs, dj->sect);
mkilivan 5:c8918e47c566 1626 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 1627 *dj->dir = DDE; /* Mark the entry "deleted" */
mkilivan 5:c8918e47c566 1628 dj->fs->wflag = 1;
mkilivan 5:c8918e47c566 1629 if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
mkilivan 5:c8918e47c566 1630 res = dir_next(dj, 0); /* Next entry */
mkilivan 5:c8918e47c566 1631 } while (res == FR_OK);
mkilivan 5:c8918e47c566 1632 if (res == FR_NO_FILE) res = FR_INT_ERR;
mkilivan 5:c8918e47c566 1633 }
mkilivan 5:c8918e47c566 1634
mkilivan 5:c8918e47c566 1635 #else /* Non LFN configuration */
mkilivan 5:c8918e47c566 1636 res = dir_sdi(dj, dj->index);
mkilivan 5:c8918e47c566 1637 if (res == FR_OK) {
mkilivan 5:c8918e47c566 1638 res = move_window(dj->fs, dj->sect);
mkilivan 5:c8918e47c566 1639 if (res == FR_OK) {
mkilivan 5:c8918e47c566 1640 *dj->dir = DDE; /* Mark the entry "deleted" */
mkilivan 5:c8918e47c566 1641 dj->fs->wflag = 1;
mkilivan 5:c8918e47c566 1642 }
mkilivan 5:c8918e47c566 1643 }
mkilivan 5:c8918e47c566 1644 #endif
mkilivan 5:c8918e47c566 1645
mkilivan 5:c8918e47c566 1646 return res;
mkilivan 5:c8918e47c566 1647 }
mkilivan 5:c8918e47c566 1648 #endif /* !_FS_READONLY */
mkilivan 5:c8918e47c566 1649
mkilivan 5:c8918e47c566 1650
mkilivan 5:c8918e47c566 1651
mkilivan 5:c8918e47c566 1652
mkilivan 5:c8918e47c566 1653 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1654 /* Pick a segment and create the object name in directory form */
mkilivan 5:c8918e47c566 1655 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1656
mkilivan 5:c8918e47c566 1657 static
mkilivan 5:c8918e47c566 1658 FRESULT create_name (
mkilivan 5:c8918e47c566 1659 FATFS_DIR *dj, /* Pointer to the directory object */
mkilivan 5:c8918e47c566 1660 const TCHAR **path /* Pointer to pointer to the segment in the path string */
mkilivan 5:c8918e47c566 1661 )
mkilivan 5:c8918e47c566 1662 {
mkilivan 5:c8918e47c566 1663 #ifdef _EXCVT
mkilivan 5:c8918e47c566 1664 static const BYTE excvt[] = _EXCVT; /* Upper conversion table for extended chars */
mkilivan 5:c8918e47c566 1665 #endif
mkilivan 5:c8918e47c566 1666
mkilivan 5:c8918e47c566 1667 #if _USE_LFN /* LFN configuration */
mkilivan 5:c8918e47c566 1668 BYTE b, cf;
mkilivan 5:c8918e47c566 1669 WCHAR w, *lfn;
mkilivan 5:c8918e47c566 1670 UINT i, ni, si, di;
mkilivan 5:c8918e47c566 1671 const TCHAR *p;
mkilivan 5:c8918e47c566 1672
mkilivan 5:c8918e47c566 1673 /* Create LFN in Unicode */
mkilivan 5:c8918e47c566 1674 for (p = *path; *p == '/' || *p == '\\'; p++) ; /* Strip duplicated separator */
mkilivan 5:c8918e47c566 1675 lfn = dj->lfn;
mkilivan 5:c8918e47c566 1676 si = di = 0;
mkilivan 5:c8918e47c566 1677 for (;;) {
mkilivan 5:c8918e47c566 1678 w = p[si++]; /* Get a character */
mkilivan 5:c8918e47c566 1679 if (w < ' ' || w == '/' || w == '\\') break; /* Break on end of segment */
mkilivan 5:c8918e47c566 1680 if (di >= _MAX_LFN) /* Reject too long name */
mkilivan 5:c8918e47c566 1681 return FR_INVALID_NAME;
mkilivan 5:c8918e47c566 1682 #if !_LFN_UNICODE
mkilivan 5:c8918e47c566 1683 w &= 0xFF;
mkilivan 5:c8918e47c566 1684 if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
mkilivan 5:c8918e47c566 1685 b = (BYTE)p[si++]; /* Get 2nd byte */
mkilivan 5:c8918e47c566 1686 if (!IsDBCS2(b))
mkilivan 5:c8918e47c566 1687 return FR_INVALID_NAME; /* Reject invalid sequence */
mkilivan 5:c8918e47c566 1688 w = (w << 8) + b; /* Create a DBC */
mkilivan 5:c8918e47c566 1689 }
mkilivan 5:c8918e47c566 1690 w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
mkilivan 5:c8918e47c566 1691 if (!w) return FR_INVALID_NAME; /* Reject invalid code */
mkilivan 5:c8918e47c566 1692 #endif
mkilivan 5:c8918e47c566 1693 if (w < 0x80 && chk_chr("\"*:<>\?|\x7F", w)) /* Reject illegal chars for LFN */
mkilivan 5:c8918e47c566 1694 return FR_INVALID_NAME;
mkilivan 5:c8918e47c566 1695 lfn[di++] = w; /* Store the Unicode char */
mkilivan 5:c8918e47c566 1696 }
mkilivan 5:c8918e47c566 1697 *path = &p[si]; /* Return pointer to the next segment */
mkilivan 5:c8918e47c566 1698 cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
mkilivan 5:c8918e47c566 1699 #if _FS_RPATH
mkilivan 5:c8918e47c566 1700 if ((di == 1 && lfn[di-1] == '.') || /* Is this a dot entry? */
mkilivan 5:c8918e47c566 1701 (di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
mkilivan 5:c8918e47c566 1702 lfn[di] = 0;
mkilivan 5:c8918e47c566 1703 for (i = 0; i < 11; i++)
mkilivan 5:c8918e47c566 1704 dj->fn[i] = (i < di) ? '.' : ' ';
mkilivan 5:c8918e47c566 1705 dj->fn[i] = cf | NS_DOT; /* This is a dot entry */
mkilivan 5:c8918e47c566 1706 return FR_OK;
mkilivan 5:c8918e47c566 1707 }
mkilivan 5:c8918e47c566 1708 #endif
mkilivan 5:c8918e47c566 1709 while (di) { /* Strip trailing spaces and dots */
mkilivan 5:c8918e47c566 1710 w = lfn[di-1];
mkilivan 5:c8918e47c566 1711 if (w != ' ' && w != '.') break;
mkilivan 5:c8918e47c566 1712 di--;
mkilivan 5:c8918e47c566 1713 }
mkilivan 5:c8918e47c566 1714 if (!di) return FR_INVALID_NAME; /* Reject nul string */
mkilivan 5:c8918e47c566 1715
mkilivan 5:c8918e47c566 1716 lfn[di] = 0; /* LFN is created */
mkilivan 5:c8918e47c566 1717
mkilivan 5:c8918e47c566 1718 /* Create SFN in directory form */
mkilivan 5:c8918e47c566 1719 mem_set(dj->fn, ' ', 11);
mkilivan 5:c8918e47c566 1720 for (si = 0; lfn[si] == ' ' || lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
mkilivan 5:c8918e47c566 1721 if (si) cf |= NS_LOSS | NS_LFN;
mkilivan 5:c8918e47c566 1722 while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
mkilivan 5:c8918e47c566 1723
mkilivan 5:c8918e47c566 1724 b = i = 0; ni = 8;
mkilivan 5:c8918e47c566 1725 for (;;) {
mkilivan 5:c8918e47c566 1726 w = lfn[si++]; /* Get an LFN char */
mkilivan 5:c8918e47c566 1727 if (!w) break; /* Break on end of the LFN */
mkilivan 5:c8918e47c566 1728 if (w == ' ' || (w == '.' && si != di)) { /* Remove spaces and dots */
mkilivan 5:c8918e47c566 1729 cf |= NS_LOSS | NS_LFN; continue;
mkilivan 5:c8918e47c566 1730 }
mkilivan 5:c8918e47c566 1731
mkilivan 5:c8918e47c566 1732 if (i >= ni || si == di) { /* Extension or end of SFN */
mkilivan 5:c8918e47c566 1733 if (ni == 11) { /* Long extension */
mkilivan 5:c8918e47c566 1734 cf |= NS_LOSS | NS_LFN; break;
mkilivan 5:c8918e47c566 1735 }
mkilivan 5:c8918e47c566 1736 if (si != di) cf |= NS_LOSS | NS_LFN; /* Out of 8.3 format */
mkilivan 5:c8918e47c566 1737 if (si > di) break; /* No extension */
mkilivan 5:c8918e47c566 1738 si = di; i = 8; ni = 11; /* Enter extension section */
mkilivan 5:c8918e47c566 1739 b <<= 2; continue;
mkilivan 5:c8918e47c566 1740 }
mkilivan 5:c8918e47c566 1741
mkilivan 5:c8918e47c566 1742 if (w >= 0x80) { /* Non ASCII char */
mkilivan 5:c8918e47c566 1743 #ifdef _EXCVT
mkilivan 5:c8918e47c566 1744 w = ff_convert(w, 0); /* Unicode -> OEM code */
mkilivan 5:c8918e47c566 1745 if (w) w = excvt[w - 0x80]; /* Convert extended char to upper (SBCS) */
mkilivan 5:c8918e47c566 1746 #else
mkilivan 5:c8918e47c566 1747 w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
mkilivan 5:c8918e47c566 1748 #endif
mkilivan 5:c8918e47c566 1749 cf |= NS_LFN; /* Force create LFN entry */
mkilivan 5:c8918e47c566 1750 }
mkilivan 5:c8918e47c566 1751
mkilivan 5:c8918e47c566 1752 if (_DF1S && w >= 0x100) { /* Double byte char (always false on SBCS cfg) */
mkilivan 5:c8918e47c566 1753 if (i >= ni - 1) {
mkilivan 5:c8918e47c566 1754 cf |= NS_LOSS | NS_LFN; i = ni; continue;
mkilivan 5:c8918e47c566 1755 }
mkilivan 5:c8918e47c566 1756 dj->fn[i++] = (BYTE)(w >> 8);
mkilivan 5:c8918e47c566 1757 } else { /* Single byte char */
mkilivan 5:c8918e47c566 1758 if (!w || chk_chr("+,;=[]", w)) { /* Replace illegal chars for SFN */
mkilivan 5:c8918e47c566 1759 w = '_'; cf |= NS_LOSS | NS_LFN;/* Lossy conversion */
mkilivan 5:c8918e47c566 1760 } else {
mkilivan 5:c8918e47c566 1761 if (IsUpper(w)) { /* ASCII large capital */
mkilivan 5:c8918e47c566 1762 b |= 2;
mkilivan 5:c8918e47c566 1763 } else {
mkilivan 5:c8918e47c566 1764 if (IsLower(w)) { /* ASCII small capital */
mkilivan 5:c8918e47c566 1765 b |= 1; w -= 0x20;
mkilivan 5:c8918e47c566 1766 }
mkilivan 5:c8918e47c566 1767 }
mkilivan 5:c8918e47c566 1768 }
mkilivan 5:c8918e47c566 1769 }
mkilivan 5:c8918e47c566 1770 dj->fn[i++] = (BYTE)w;
mkilivan 5:c8918e47c566 1771 }
mkilivan 5:c8918e47c566 1772
mkilivan 5:c8918e47c566 1773 if (dj->fn[0] == DDE) dj->fn[0] = NDDE; /* If the first char collides with deleted mark, replace it with 0x05 */
mkilivan 5:c8918e47c566 1774
mkilivan 5:c8918e47c566 1775 if (ni == 8) b <<= 2;
mkilivan 5:c8918e47c566 1776 if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
mkilivan 5:c8918e47c566 1777 cf |= NS_LFN;
mkilivan 5:c8918e47c566 1778 if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */
mkilivan 5:c8918e47c566 1779 if ((b & 0x03) == 0x01) cf |= NS_EXT; /* NT flag (Extension has only small capital) */
mkilivan 5:c8918e47c566 1780 if ((b & 0x0C) == 0x04) cf |= NS_BODY; /* NT flag (Filename has only small capital) */
mkilivan 5:c8918e47c566 1781 }
mkilivan 5:c8918e47c566 1782
mkilivan 5:c8918e47c566 1783 dj->fn[NS] = cf; /* SFN is created */
mkilivan 5:c8918e47c566 1784
mkilivan 5:c8918e47c566 1785 return FR_OK;
mkilivan 5:c8918e47c566 1786
mkilivan 5:c8918e47c566 1787
mkilivan 5:c8918e47c566 1788 #else /* Non-LFN configuration */
mkilivan 5:c8918e47c566 1789 BYTE b, c, d, *sfn;
mkilivan 5:c8918e47c566 1790 UINT ni, si, i;
mkilivan 5:c8918e47c566 1791 const char *p;
mkilivan 5:c8918e47c566 1792
mkilivan 5:c8918e47c566 1793 /* Create file name in directory form */
mkilivan 5:c8918e47c566 1794 for (p = *path; *p == '/' || *p == '\\'; p++) ; /* Strip duplicated separator */
mkilivan 5:c8918e47c566 1795 sfn = dj->fn;
mkilivan 5:c8918e47c566 1796 mem_set(sfn, ' ', 11);
mkilivan 5:c8918e47c566 1797 si = i = b = 0; ni = 8;
mkilivan 5:c8918e47c566 1798 #if _FS_RPATH
mkilivan 5:c8918e47c566 1799 if (p[si] == '.') { /* Is this a dot entry? */
mkilivan 5:c8918e47c566 1800 for (;;) {
mkilivan 5:c8918e47c566 1801 c = (BYTE)p[si++];
mkilivan 5:c8918e47c566 1802 if (c != '.' || si >= 3) break;
mkilivan 5:c8918e47c566 1803 sfn[i++] = c;
mkilivan 5:c8918e47c566 1804 }
mkilivan 5:c8918e47c566 1805 if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
mkilivan 5:c8918e47c566 1806 *path = &p[si]; /* Return pointer to the next segment */
mkilivan 5:c8918e47c566 1807 sfn[NS] = (c <= ' ') ? NS_LAST | NS_DOT : NS_DOT; /* Set last segment flag if end of path */
mkilivan 5:c8918e47c566 1808 return FR_OK;
mkilivan 5:c8918e47c566 1809 }
mkilivan 5:c8918e47c566 1810 #endif
mkilivan 5:c8918e47c566 1811 for (;;) {
mkilivan 5:c8918e47c566 1812 c = (BYTE)p[si++];
mkilivan 5:c8918e47c566 1813 if (c <= ' ' || c == '/' || c == '\\') break; /* Break on end of segment */
mkilivan 5:c8918e47c566 1814 if (c == '.' || i >= ni) {
mkilivan 5:c8918e47c566 1815 if (ni != 8 || c != '.') return FR_INVALID_NAME;
mkilivan 5:c8918e47c566 1816 i = 8; ni = 11;
mkilivan 5:c8918e47c566 1817 b <<= 2; continue;
mkilivan 5:c8918e47c566 1818 }
mkilivan 5:c8918e47c566 1819 if (c >= 0x80) { /* Extended char? */
mkilivan 5:c8918e47c566 1820 b |= 3; /* Eliminate NT flag */
mkilivan 5:c8918e47c566 1821 #ifdef _EXCVT
mkilivan 5:c8918e47c566 1822 c = excvt[c - 0x80]; /* Upper conversion (SBCS) */
mkilivan 5:c8918e47c566 1823 #else
mkilivan 5:c8918e47c566 1824 #if !_DF1S /* ASCII only cfg */
mkilivan 5:c8918e47c566 1825 return FR_INVALID_NAME;
mkilivan 5:c8918e47c566 1826 #endif
mkilivan 5:c8918e47c566 1827 #endif
mkilivan 5:c8918e47c566 1828 }
mkilivan 5:c8918e47c566 1829 if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
mkilivan 5:c8918e47c566 1830 d = (BYTE)p[si++]; /* Get 2nd byte */
mkilivan 5:c8918e47c566 1831 if (!IsDBCS2(d) || i >= ni - 1) /* Reject invalid DBC */
mkilivan 5:c8918e47c566 1832 return FR_INVALID_NAME;
mkilivan 5:c8918e47c566 1833 sfn[i++] = c;
mkilivan 5:c8918e47c566 1834 sfn[i++] = d;
mkilivan 5:c8918e47c566 1835 } else { /* Single byte code */
mkilivan 5:c8918e47c566 1836 if (chk_chr("\"*+,:;<=>\?[]|\x7F", c)) /* Reject illegal chrs for SFN */
mkilivan 5:c8918e47c566 1837 return FR_INVALID_NAME;
mkilivan 5:c8918e47c566 1838 if (IsUpper(c)) { /* ASCII large capital? */
mkilivan 5:c8918e47c566 1839 b |= 2;
mkilivan 5:c8918e47c566 1840 } else {
mkilivan 5:c8918e47c566 1841 if (IsLower(c)) { /* ASCII small capital? */
mkilivan 5:c8918e47c566 1842 b |= 1; c -= 0x20;
mkilivan 5:c8918e47c566 1843 }
mkilivan 5:c8918e47c566 1844 }
mkilivan 5:c8918e47c566 1845 sfn[i++] = c;
mkilivan 5:c8918e47c566 1846 }
mkilivan 5:c8918e47c566 1847 }
mkilivan 5:c8918e47c566 1848 *path = &p[si]; /* Return pointer to the next segment */
mkilivan 5:c8918e47c566 1849 c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
mkilivan 5:c8918e47c566 1850
mkilivan 5:c8918e47c566 1851 if (!i) return FR_INVALID_NAME; /* Reject nul string */
mkilivan 5:c8918e47c566 1852 if (sfn[0] == DDE) sfn[0] = NDDE; /* When first char collides with DDE, replace it with 0x05 */
mkilivan 5:c8918e47c566 1853
mkilivan 5:c8918e47c566 1854 if (ni == 8) b <<= 2;
mkilivan 5:c8918e47c566 1855 if ((b & 0x03) == 0x01) c |= NS_EXT; /* NT flag (Name extension has only small capital) */
mkilivan 5:c8918e47c566 1856 if ((b & 0x0C) == 0x04) c |= NS_BODY; /* NT flag (Name body has only small capital) */
mkilivan 5:c8918e47c566 1857
mkilivan 5:c8918e47c566 1858 sfn[NS] = c; /* Store NT flag, File name is created */
mkilivan 5:c8918e47c566 1859
mkilivan 5:c8918e47c566 1860 return FR_OK;
mkilivan 5:c8918e47c566 1861 #endif
mkilivan 5:c8918e47c566 1862 }
mkilivan 5:c8918e47c566 1863
mkilivan 5:c8918e47c566 1864
mkilivan 5:c8918e47c566 1865
mkilivan 5:c8918e47c566 1866
mkilivan 5:c8918e47c566 1867 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1868 /* Get file information from directory entry */
mkilivan 5:c8918e47c566 1869 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1870 #if _FS_MINIMIZE <= 1
mkilivan 5:c8918e47c566 1871 static
mkilivan 5:c8918e47c566 1872 void get_fileinfo ( /* No return code */
mkilivan 5:c8918e47c566 1873 FATFS_DIR *dj, /* Pointer to the directory object */
mkilivan 5:c8918e47c566 1874 FILINFO *fno /* Pointer to the file information to be filled */
mkilivan 5:c8918e47c566 1875 )
mkilivan 5:c8918e47c566 1876 {
mkilivan 5:c8918e47c566 1877 UINT i;
mkilivan 5:c8918e47c566 1878 BYTE nt, *dir;
mkilivan 5:c8918e47c566 1879 TCHAR *p, c;
mkilivan 5:c8918e47c566 1880
mkilivan 5:c8918e47c566 1881
mkilivan 5:c8918e47c566 1882 p = fno->fname;
mkilivan 5:c8918e47c566 1883 if (dj->sect) {
mkilivan 5:c8918e47c566 1884 dir = dj->dir;
mkilivan 5:c8918e47c566 1885 nt = dir[DIR_NTres]; /* NT flag */
mkilivan 5:c8918e47c566 1886 for (i = 0; i < 8; i++) { /* Copy name body */
mkilivan 5:c8918e47c566 1887 c = dir[i];
mkilivan 5:c8918e47c566 1888 if (c == ' ') break;
mkilivan 5:c8918e47c566 1889 if (c == NDDE) c = (TCHAR)DDE;
mkilivan 5:c8918e47c566 1890 if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
mkilivan 5:c8918e47c566 1891 #if _LFN_UNICODE
mkilivan 5:c8918e47c566 1892 if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i+1]))
mkilivan 5:c8918e47c566 1893 c = (c << 8) | dir[++i];
mkilivan 5:c8918e47c566 1894 c = ff_convert(c, 1);
mkilivan 5:c8918e47c566 1895 if (!c) c = '?';
mkilivan 5:c8918e47c566 1896 #endif
mkilivan 5:c8918e47c566 1897 *p++ = c;
mkilivan 5:c8918e47c566 1898 }
mkilivan 5:c8918e47c566 1899 if (dir[8] != ' ') { /* Copy name extension */
mkilivan 5:c8918e47c566 1900 *p++ = '.';
mkilivan 5:c8918e47c566 1901 for (i = 8; i < 11; i++) {
mkilivan 5:c8918e47c566 1902 c = dir[i];
mkilivan 5:c8918e47c566 1903 if (c == ' ') break;
mkilivan 5:c8918e47c566 1904 if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
mkilivan 5:c8918e47c566 1905 #if _LFN_UNICODE
mkilivan 5:c8918e47c566 1906 if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i+1]))
mkilivan 5:c8918e47c566 1907 c = (c << 8) | dir[++i];
mkilivan 5:c8918e47c566 1908 c = ff_convert(c, 1);
mkilivan 5:c8918e47c566 1909 if (!c) c = '?';
mkilivan 5:c8918e47c566 1910 #endif
mkilivan 5:c8918e47c566 1911 *p++ = c;
mkilivan 5:c8918e47c566 1912 }
mkilivan 5:c8918e47c566 1913 }
mkilivan 5:c8918e47c566 1914 fno->fattrib = dir[DIR_Attr]; /* Attribute */
mkilivan 5:c8918e47c566 1915 fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
mkilivan 5:c8918e47c566 1916 fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
mkilivan 5:c8918e47c566 1917 fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
mkilivan 5:c8918e47c566 1918 }
mkilivan 5:c8918e47c566 1919 *p = 0; /* Terminate SFN str by a \0 */
mkilivan 5:c8918e47c566 1920
mkilivan 5:c8918e47c566 1921 #if _USE_LFN
mkilivan 5:c8918e47c566 1922 if (fno->lfname && fno->lfsize) {
mkilivan 5:c8918e47c566 1923 TCHAR *tp = fno->lfname;
mkilivan 5:c8918e47c566 1924 WCHAR w, *lfn;
mkilivan 5:c8918e47c566 1925
mkilivan 5:c8918e47c566 1926 i = 0;
mkilivan 5:c8918e47c566 1927 if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
mkilivan 5:c8918e47c566 1928 lfn = dj->lfn;
mkilivan 5:c8918e47c566 1929 while ((w = *lfn++) != 0) { /* Get an LFN char */
mkilivan 5:c8918e47c566 1930 #if !_LFN_UNICODE
mkilivan 5:c8918e47c566 1931 w = ff_convert(w, 0); /* Unicode -> OEM conversion */
mkilivan 5:c8918e47c566 1932 if (!w) { i = 0; break; } /* Could not convert, no LFN */
mkilivan 5:c8918e47c566 1933 if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
mkilivan 5:c8918e47c566 1934 tp[i++] = (TCHAR)(w >> 8);
mkilivan 5:c8918e47c566 1935 #endif
mkilivan 5:c8918e47c566 1936 if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overflow, no LFN */
mkilivan 5:c8918e47c566 1937 tp[i++] = (TCHAR)w;
mkilivan 5:c8918e47c566 1938 }
mkilivan 5:c8918e47c566 1939 }
mkilivan 5:c8918e47c566 1940 tp[i] = 0; /* Terminate the LFN str by a \0 */
mkilivan 5:c8918e47c566 1941 }
mkilivan 5:c8918e47c566 1942 #endif
mkilivan 5:c8918e47c566 1943 }
mkilivan 5:c8918e47c566 1944 #endif /* _FS_MINIMIZE <= 1 */
mkilivan 5:c8918e47c566 1945
mkilivan 5:c8918e47c566 1946
mkilivan 5:c8918e47c566 1947
mkilivan 5:c8918e47c566 1948
mkilivan 5:c8918e47c566 1949 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1950 /* Follow a file path */
mkilivan 5:c8918e47c566 1951 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 1952
mkilivan 5:c8918e47c566 1953 static
mkilivan 5:c8918e47c566 1954 FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
mkilivan 5:c8918e47c566 1955 FATFS_DIR *dj, /* Directory object to return last directory and found object */
mkilivan 5:c8918e47c566 1956 const TCHAR *path /* Full-path string to find a file or directory */
mkilivan 5:c8918e47c566 1957 )
mkilivan 5:c8918e47c566 1958 {
mkilivan 5:c8918e47c566 1959 FRESULT res;
mkilivan 5:c8918e47c566 1960 BYTE *dir, ns;
mkilivan 5:c8918e47c566 1961
mkilivan 5:c8918e47c566 1962
mkilivan 5:c8918e47c566 1963 #if _FS_RPATH
mkilivan 5:c8918e47c566 1964 if (*path == '/' || *path == '\\') { /* There is a heading separator */
mkilivan 5:c8918e47c566 1965 path++; dj->sclust = 0; /* Strip it and start from the root dir */
mkilivan 5:c8918e47c566 1966 } else { /* No heading separator */
mkilivan 5:c8918e47c566 1967 dj->sclust = dj->fs->cdir; /* Start from the current dir */
mkilivan 5:c8918e47c566 1968 }
mkilivan 5:c8918e47c566 1969 #else
mkilivan 5:c8918e47c566 1970 if (*path == '/' || *path == '\\') /* Strip heading separator if exist */
mkilivan 5:c8918e47c566 1971 path++;
mkilivan 5:c8918e47c566 1972 dj->sclust = 0; /* Start from the root dir */
mkilivan 5:c8918e47c566 1973 #endif
mkilivan 5:c8918e47c566 1974
mkilivan 5:c8918e47c566 1975 if ((UINT)*path < ' ') { /* Nul path means the start directory itself */
mkilivan 5:c8918e47c566 1976 res = dir_sdi(dj, 0);
mkilivan 5:c8918e47c566 1977 dj->dir = 0;
mkilivan 5:c8918e47c566 1978 } else { /* Follow path */
mkilivan 5:c8918e47c566 1979 for (;;) {
mkilivan 5:c8918e47c566 1980 res = create_name(dj, &path); /* Get a segment */
mkilivan 5:c8918e47c566 1981 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 1982 res = dir_find(dj); /* Find it */
mkilivan 5:c8918e47c566 1983 ns = *(dj->fn+NS);
mkilivan 5:c8918e47c566 1984 if (res != FR_OK) { /* Failed to find the object */
mkilivan 5:c8918e47c566 1985 if (res != FR_NO_FILE) break; /* Abort if any hard error occurred */
mkilivan 5:c8918e47c566 1986 /* Object not found */
mkilivan 5:c8918e47c566 1987 if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exit */
mkilivan 5:c8918e47c566 1988 dj->sclust = 0; dj->dir = 0; /* It is the root dir */
mkilivan 5:c8918e47c566 1989 res = FR_OK;
mkilivan 5:c8918e47c566 1990 if (!(ns & NS_LAST)) continue;
mkilivan 5:c8918e47c566 1991 } else { /* Could not find the object */
mkilivan 5:c8918e47c566 1992 if (!(ns & NS_LAST)) res = FR_NO_PATH;
mkilivan 5:c8918e47c566 1993 }
mkilivan 5:c8918e47c566 1994 break;
mkilivan 5:c8918e47c566 1995 }
mkilivan 5:c8918e47c566 1996 if (ns & NS_LAST) break; /* Last segment match. Function completed. */
mkilivan 5:c8918e47c566 1997 dir = dj->dir; /* There is next segment. Follow the sub directory */
mkilivan 5:c8918e47c566 1998 if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
mkilivan 5:c8918e47c566 1999 res = FR_NO_PATH; break;
mkilivan 5:c8918e47c566 2000 }
mkilivan 5:c8918e47c566 2001 dj->sclust = ld_clust(dj->fs, dir);
mkilivan 5:c8918e47c566 2002 }
mkilivan 5:c8918e47c566 2003 }
mkilivan 5:c8918e47c566 2004
mkilivan 5:c8918e47c566 2005 return res;
mkilivan 5:c8918e47c566 2006 }
mkilivan 5:c8918e47c566 2007
mkilivan 5:c8918e47c566 2008
mkilivan 5:c8918e47c566 2009
mkilivan 5:c8918e47c566 2010
mkilivan 5:c8918e47c566 2011 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2012 /* Load a sector and check if it is an FAT Volume Boot Record */
mkilivan 5:c8918e47c566 2013 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2014
mkilivan 5:c8918e47c566 2015 static
mkilivan 5:c8918e47c566 2016 BYTE check_fs ( /* 0:FAT-VBR, 1:Any BR but not FAT, 2:Not a BR, 3:Disk error */
mkilivan 5:c8918e47c566 2017 FATFS *fs, /* File system object */
mkilivan 5:c8918e47c566 2018 DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
mkilivan 5:c8918e47c566 2019 )
mkilivan 5:c8918e47c566 2020 {
mkilivan 5:c8918e47c566 2021 if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK) /* Load boot record */
mkilivan 5:c8918e47c566 2022 return 3;
mkilivan 5:c8918e47c566 2023 if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
mkilivan 5:c8918e47c566 2024 return 2;
mkilivan 5:c8918e47c566 2025
mkilivan 5:c8918e47c566 2026 if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
mkilivan 5:c8918e47c566 2027 return 0;
mkilivan 5:c8918e47c566 2028 if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
mkilivan 5:c8918e47c566 2029 return 0;
mkilivan 5:c8918e47c566 2030
mkilivan 5:c8918e47c566 2031 return 1;
mkilivan 5:c8918e47c566 2032 }
mkilivan 5:c8918e47c566 2033
mkilivan 5:c8918e47c566 2034
mkilivan 5:c8918e47c566 2035
mkilivan 5:c8918e47c566 2036
mkilivan 5:c8918e47c566 2037 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2038 /* Check if the file system object is valid or not */
mkilivan 5:c8918e47c566 2039 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2040
mkilivan 5:c8918e47c566 2041 static
mkilivan 5:c8918e47c566 2042 FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occurred */
mkilivan 5:c8918e47c566 2043 const TCHAR **path, /* Pointer to pointer to the path name (drive number) */
mkilivan 5:c8918e47c566 2044 FATFS **rfs, /* Pointer to pointer to the found file system object */
mkilivan 5:c8918e47c566 2045 BYTE wmode /* !=0: Check write protection for write access */
mkilivan 5:c8918e47c566 2046 )
mkilivan 5:c8918e47c566 2047 {
mkilivan 5:c8918e47c566 2048 BYTE fmt, b, pi, *tbl;
mkilivan 5:c8918e47c566 2049 UINT vol;
mkilivan 5:c8918e47c566 2050 DSTATUS stat;
mkilivan 5:c8918e47c566 2051 DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
mkilivan 5:c8918e47c566 2052 WORD nrsv;
mkilivan 5:c8918e47c566 2053 const TCHAR *p = *path;
mkilivan 5:c8918e47c566 2054 FATFS *fs;
mkilivan 5:c8918e47c566 2055
mkilivan 5:c8918e47c566 2056
mkilivan 5:c8918e47c566 2057 /* Get logical drive number from the path name */
mkilivan 5:c8918e47c566 2058 vol = p[0] - '0'; /* Is there a drive number? */
mkilivan 5:c8918e47c566 2059 if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */
mkilivan 5:c8918e47c566 2060 p += 2; *path = p; /* Return pointer to the path name */
mkilivan 5:c8918e47c566 2061 } else { /* No drive number is given */
mkilivan 5:c8918e47c566 2062 #if _FS_RPATH
mkilivan 5:c8918e47c566 2063 vol = CurrVol; /* Use current drive */
mkilivan 5:c8918e47c566 2064 #else
mkilivan 5:c8918e47c566 2065 vol = 0; /* Use drive 0 */
mkilivan 5:c8918e47c566 2066 #endif
mkilivan 5:c8918e47c566 2067 }
mkilivan 5:c8918e47c566 2068
mkilivan 5:c8918e47c566 2069 /* Check if the file system object is valid or not */
mkilivan 5:c8918e47c566 2070 *rfs = 0;
mkilivan 5:c8918e47c566 2071 if (vol >= _VOLUMES) /* Is the drive number valid? */
mkilivan 5:c8918e47c566 2072 return FR_INVALID_DRIVE;
mkilivan 5:c8918e47c566 2073 fs = FatFs[vol]; /* Get corresponding file system object */
mkilivan 5:c8918e47c566 2074 if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
mkilivan 5:c8918e47c566 2075
mkilivan 5:c8918e47c566 2076 ENTER_FF(fs); /* Lock file system */
mkilivan 5:c8918e47c566 2077
mkilivan 5:c8918e47c566 2078 *rfs = fs; /* Return pointer to the corresponding file system object */
mkilivan 5:c8918e47c566 2079 if (fs->fs_type) { /* If the volume has been mounted */
mkilivan 5:c8918e47c566 2080 stat = disk_status(fs->drv);
mkilivan 5:c8918e47c566 2081 if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */
mkilivan 5:c8918e47c566 2082 if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
mkilivan 5:c8918e47c566 2083 return FR_WRITE_PROTECTED;
mkilivan 5:c8918e47c566 2084 return FR_OK; /* The file system object is valid */
mkilivan 5:c8918e47c566 2085 }
mkilivan 5:c8918e47c566 2086 }
mkilivan 5:c8918e47c566 2087
mkilivan 5:c8918e47c566 2088 /* The file system object is not valid. */
mkilivan 5:c8918e47c566 2089 /* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
mkilivan 5:c8918e47c566 2090
mkilivan 5:c8918e47c566 2091 fs->fs_type = 0; /* Clear the file system object */
mkilivan 5:c8918e47c566 2092 fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
mkilivan 5:c8918e47c566 2093 stat = disk_initialize(fs->drv); /* Initialize the physical drive */
mkilivan 5:c8918e47c566 2094 if (stat & STA_NOINIT) /* Check if the initialization succeeded */
mkilivan 5:c8918e47c566 2095 return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
mkilivan 5:c8918e47c566 2096 if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
mkilivan 5:c8918e47c566 2097 return FR_WRITE_PROTECTED;
mkilivan 5:c8918e47c566 2098 #if _MAX_SS != 512 /* Get disk sector size (variable sector size cfg only) */
mkilivan 5:c8918e47c566 2099 if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
mkilivan 5:c8918e47c566 2100 return FR_DISK_ERR;
mkilivan 5:c8918e47c566 2101 #endif
mkilivan 5:c8918e47c566 2102 /* Search FAT partition on the drive. Supports only generic partitions, FDISK and SFD. */
mkilivan 5:c8918e47c566 2103 fmt = check_fs(fs, bsect = 0); /* Load sector 0 and check if it is an FAT-VBR (in SFD) */
mkilivan 5:c8918e47c566 2104 if (LD2PT(vol) && !fmt) fmt = 1; /* Force non-SFD if the volume is forced partition */
mkilivan 5:c8918e47c566 2105 if (fmt == 1) { /* Not an FAT-VBR, the physical drive can be partitioned */
mkilivan 5:c8918e47c566 2106 /* Check the partition listed in the partition table */
mkilivan 5:c8918e47c566 2107 pi = LD2PT(vol);
mkilivan 5:c8918e47c566 2108 if (pi) pi--;
mkilivan 5:c8918e47c566 2109 tbl = &fs->win[MBR_Table + pi * SZ_PTE];/* Partition table */
mkilivan 5:c8918e47c566 2110 if (tbl[4]) { /* Is the partition existing? */
mkilivan 5:c8918e47c566 2111 bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
mkilivan 5:c8918e47c566 2112 fmt = check_fs(fs, bsect); /* Check the partition */
mkilivan 5:c8918e47c566 2113 }
mkilivan 5:c8918e47c566 2114 }
mkilivan 5:c8918e47c566 2115 if (fmt == 3) return FR_DISK_ERR;
mkilivan 5:c8918e47c566 2116 if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
mkilivan 5:c8918e47c566 2117
mkilivan 5:c8918e47c566 2118 /* An FAT volume is found. Following code initializes the file system object */
mkilivan 5:c8918e47c566 2119
mkilivan 5:c8918e47c566 2120 if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
mkilivan 5:c8918e47c566 2121 return FR_NO_FILESYSTEM;
mkilivan 5:c8918e47c566 2122
mkilivan 5:c8918e47c566 2123 fasize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */
mkilivan 5:c8918e47c566 2124 if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32);
mkilivan 5:c8918e47c566 2125 fs->fsize = fasize;
mkilivan 5:c8918e47c566 2126
mkilivan 5:c8918e47c566 2127 fs->n_fats = b = fs->win[BPB_NumFATs]; /* Number of FAT copies */
mkilivan 5:c8918e47c566 2128 if (b != 1 && b != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
mkilivan 5:c8918e47c566 2129 fasize *= b; /* Number of sectors for FAT area */
mkilivan 5:c8918e47c566 2130
mkilivan 5:c8918e47c566 2131 fs->csize = b = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
mkilivan 5:c8918e47c566 2132 if (!b || (b & (b - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
mkilivan 5:c8918e47c566 2133
mkilivan 5:c8918e47c566 2134 fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Number of root directory entries */
mkilivan 5:c8918e47c566 2135 if (fs->n_rootdir % (SS(fs) / SZ_DIR)) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be sector aligned) */
mkilivan 5:c8918e47c566 2136
mkilivan 5:c8918e47c566 2137 tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */
mkilivan 5:c8918e47c566 2138 if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
mkilivan 5:c8918e47c566 2139
mkilivan 5:c8918e47c566 2140 nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt); /* Number of reserved sectors */
mkilivan 5:c8918e47c566 2141 if (!nrsv) return FR_NO_FILESYSTEM; /* (BPB_RsvdSecCnt must not be 0) */
mkilivan 5:c8918e47c566 2142
mkilivan 5:c8918e47c566 2143 /* Determine the FAT sub type */
mkilivan 5:c8918e47c566 2144 sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR); /* RSV+FAT+DIR */
mkilivan 5:c8918e47c566 2145 if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mkilivan 5:c8918e47c566 2146 nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
mkilivan 5:c8918e47c566 2147 if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mkilivan 5:c8918e47c566 2148 fmt = FS_FAT12;
mkilivan 5:c8918e47c566 2149 if (nclst >= MIN_FAT16) fmt = FS_FAT16;
mkilivan 5:c8918e47c566 2150 if (nclst >= MIN_FAT32) fmt = FS_FAT32;
mkilivan 5:c8918e47c566 2151
mkilivan 5:c8918e47c566 2152 /* Boundaries and Limits */
mkilivan 5:c8918e47c566 2153 fs->n_fatent = nclst + 2; /* Number of FAT entries */
mkilivan 5:c8918e47c566 2154 fs->database = bsect + sysect; /* Data start sector */
mkilivan 5:c8918e47c566 2155 fs->fatbase = bsect + nrsv; /* FAT start sector */
mkilivan 5:c8918e47c566 2156 if (fmt == FS_FAT32) {
mkilivan 5:c8918e47c566 2157 if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
mkilivan 5:c8918e47c566 2158 fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
mkilivan 5:c8918e47c566 2159 szbfat = fs->n_fatent * 4; /* (Required FAT size) */
mkilivan 5:c8918e47c566 2160 } else {
mkilivan 5:c8918e47c566 2161 if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
mkilivan 5:c8918e47c566 2162 fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
mkilivan 5:c8918e47c566 2163 szbfat = (fmt == FS_FAT16) ? /* (Required FAT size) */
mkilivan 5:c8918e47c566 2164 fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
mkilivan 5:c8918e47c566 2165 }
mkilivan 5:c8918e47c566 2166 if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than required) */
mkilivan 5:c8918e47c566 2167 return FR_NO_FILESYSTEM;
mkilivan 5:c8918e47c566 2168
mkilivan 5:c8918e47c566 2169 #if !_FS_READONLY
mkilivan 5:c8918e47c566 2170 /* Initialize cluster allocation information */
mkilivan 5:c8918e47c566 2171 fs->free_clust = 0xFFFFFFFF;
mkilivan 5:c8918e47c566 2172 fs->last_clust = 0;
mkilivan 5:c8918e47c566 2173
mkilivan 5:c8918e47c566 2174 /* Get fsinfo if available */
mkilivan 5:c8918e47c566 2175 if (fmt == FS_FAT32) {
mkilivan 5:c8918e47c566 2176 fs->fsi_flag = 0;
mkilivan 5:c8918e47c566 2177 fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
mkilivan 5:c8918e47c566 2178 if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK &&
mkilivan 5:c8918e47c566 2179 LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
mkilivan 5:c8918e47c566 2180 LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
mkilivan 5:c8918e47c566 2181 LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
mkilivan 5:c8918e47c566 2182 fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
mkilivan 5:c8918e47c566 2183 fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
mkilivan 5:c8918e47c566 2184 }
mkilivan 5:c8918e47c566 2185 }
mkilivan 5:c8918e47c566 2186 #endif
mkilivan 5:c8918e47c566 2187 fs->fs_type = fmt; /* FAT sub-type */
mkilivan 5:c8918e47c566 2188 fs->id = ++Fsid; /* File system mount ID */
mkilivan 5:c8918e47c566 2189 fs->winsect = 0; /* Invalidate sector cache */
mkilivan 5:c8918e47c566 2190 fs->wflag = 0;
mkilivan 5:c8918e47c566 2191 #if _FS_RPATH
mkilivan 5:c8918e47c566 2192 fs->cdir = 0; /* Current directory (root dir) */
mkilivan 5:c8918e47c566 2193 #endif
mkilivan 5:c8918e47c566 2194 #if _FS_LOCK /* Clear file lock semaphores */
mkilivan 5:c8918e47c566 2195 clear_lock(fs);
mkilivan 5:c8918e47c566 2196 #endif
mkilivan 5:c8918e47c566 2197
mkilivan 5:c8918e47c566 2198 return FR_OK;
mkilivan 5:c8918e47c566 2199 }
mkilivan 5:c8918e47c566 2200
mkilivan 5:c8918e47c566 2201
mkilivan 5:c8918e47c566 2202
mkilivan 5:c8918e47c566 2203
mkilivan 5:c8918e47c566 2204 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2205 /* Check if the file/dir object is valid or not */
mkilivan 5:c8918e47c566 2206 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2207
mkilivan 5:c8918e47c566 2208 static
mkilivan 5:c8918e47c566 2209 FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
mkilivan 5:c8918e47c566 2210 void* obj /* Pointer to the object FIL/DIR to check validity */
mkilivan 5:c8918e47c566 2211 )
mkilivan 5:c8918e47c566 2212 {
mkilivan 5:c8918e47c566 2213 FIL *fil;
mkilivan 5:c8918e47c566 2214
mkilivan 5:c8918e47c566 2215
mkilivan 5:c8918e47c566 2216 fil = (FIL*)obj; /* Assuming offset of fs and id in the FIL/DIR is identical */
mkilivan 5:c8918e47c566 2217 if (!fil->fs || !fil->fs->fs_type || fil->fs->id != fil->id)
mkilivan 5:c8918e47c566 2218 return FR_INVALID_OBJECT;
mkilivan 5:c8918e47c566 2219
mkilivan 5:c8918e47c566 2220 ENTER_FF(fil->fs); /* Lock file system */
mkilivan 5:c8918e47c566 2221
mkilivan 5:c8918e47c566 2222 if (disk_status(fil->fs->drv) & STA_NOINIT)
mkilivan 5:c8918e47c566 2223 return FR_NOT_READY;
mkilivan 5:c8918e47c566 2224
mkilivan 5:c8918e47c566 2225 return FR_OK;
mkilivan 5:c8918e47c566 2226 }
mkilivan 5:c8918e47c566 2227
mkilivan 5:c8918e47c566 2228
mkilivan 5:c8918e47c566 2229
mkilivan 5:c8918e47c566 2230
mkilivan 5:c8918e47c566 2231 /*--------------------------------------------------------------------------
mkilivan 5:c8918e47c566 2232
mkilivan 5:c8918e47c566 2233 Public Functions
mkilivan 5:c8918e47c566 2234
mkilivan 5:c8918e47c566 2235 --------------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2236
mkilivan 5:c8918e47c566 2237
mkilivan 5:c8918e47c566 2238
mkilivan 5:c8918e47c566 2239 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2240 /* Mount/Unmount a Logical Drive */
mkilivan 5:c8918e47c566 2241 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2242
mkilivan 5:c8918e47c566 2243 FRESULT f_mount (
mkilivan 5:c8918e47c566 2244 BYTE vol, /* Logical drive number to be mounted/unmounted */
mkilivan 5:c8918e47c566 2245 FATFS *fs /* Pointer to new file system object (NULL for unmount)*/
mkilivan 5:c8918e47c566 2246 )
mkilivan 5:c8918e47c566 2247 {
mkilivan 5:c8918e47c566 2248 FATFS *rfs;
mkilivan 5:c8918e47c566 2249
mkilivan 5:c8918e47c566 2250
mkilivan 5:c8918e47c566 2251 if (vol >= _VOLUMES) /* Check if the drive number is valid */
mkilivan 5:c8918e47c566 2252 return FR_INVALID_DRIVE;
mkilivan 5:c8918e47c566 2253 rfs = FatFs[vol]; /* Get current fs object */
mkilivan 5:c8918e47c566 2254
mkilivan 5:c8918e47c566 2255 if (rfs) {
mkilivan 5:c8918e47c566 2256 #if _FS_LOCK
mkilivan 5:c8918e47c566 2257 clear_lock(rfs);
mkilivan 5:c8918e47c566 2258 #endif
mkilivan 5:c8918e47c566 2259 #if _FS_REENTRANT /* Discard sync object of the current volume */
mkilivan 5:c8918e47c566 2260 if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
mkilivan 5:c8918e47c566 2261 #endif
mkilivan 5:c8918e47c566 2262 rfs->fs_type = 0; /* Clear old fs object */
mkilivan 5:c8918e47c566 2263 }
mkilivan 5:c8918e47c566 2264
mkilivan 5:c8918e47c566 2265 if (fs) {
mkilivan 5:c8918e47c566 2266 fs->fs_type = 0; /* Clear new fs object */
mkilivan 5:c8918e47c566 2267 #if _FS_REENTRANT /* Create sync object for the new volume */
mkilivan 5:c8918e47c566 2268 if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
mkilivan 5:c8918e47c566 2269 #endif
mkilivan 5:c8918e47c566 2270 }
mkilivan 5:c8918e47c566 2271 FatFs[vol] = fs; /* Register new fs object */
mkilivan 5:c8918e47c566 2272
mkilivan 5:c8918e47c566 2273 return FR_OK;
mkilivan 5:c8918e47c566 2274 }
mkilivan 5:c8918e47c566 2275
mkilivan 5:c8918e47c566 2276
mkilivan 5:c8918e47c566 2277
mkilivan 5:c8918e47c566 2278
mkilivan 5:c8918e47c566 2279 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2280 /* Open or Create a File */
mkilivan 5:c8918e47c566 2281 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2282
mkilivan 5:c8918e47c566 2283 FRESULT f_open (
mkilivan 5:c8918e47c566 2284 FIL *fp, /* Pointer to the blank file object */
mkilivan 5:c8918e47c566 2285 const TCHAR *path, /* Pointer to the file name */
mkilivan 5:c8918e47c566 2286 BYTE mode /* Access mode and file open mode flags */
mkilivan 5:c8918e47c566 2287 )
mkilivan 5:c8918e47c566 2288 {
mkilivan 5:c8918e47c566 2289 FRESULT res;
mkilivan 5:c8918e47c566 2290 FATFS_DIR dj;
mkilivan 5:c8918e47c566 2291 BYTE *dir;
mkilivan 5:c8918e47c566 2292 DEF_NAMEBUF;
mkilivan 5:c8918e47c566 2293
mkilivan 5:c8918e47c566 2294
mkilivan 5:c8918e47c566 2295 if (!fp) return FR_INVALID_OBJECT;
mkilivan 5:c8918e47c566 2296 fp->fs = 0; /* Clear file object */
mkilivan 5:c8918e47c566 2297
mkilivan 5:c8918e47c566 2298 #if !_FS_READONLY
mkilivan 5:c8918e47c566 2299 mode &= FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW;
mkilivan 5:c8918e47c566 2300 res = chk_mounted(&path, &dj.fs, (BYTE)(mode & ~FA_READ));
mkilivan 5:c8918e47c566 2301 #else
mkilivan 5:c8918e47c566 2302 mode &= FA_READ;
mkilivan 5:c8918e47c566 2303 res = chk_mounted(&path, &dj.fs, 0);
mkilivan 5:c8918e47c566 2304 #endif
mkilivan 5:c8918e47c566 2305 if (res == FR_OK) {
mkilivan 5:c8918e47c566 2306 INIT_BUF(dj);
mkilivan 5:c8918e47c566 2307 res = follow_path(&dj, path); /* Follow the file path */
mkilivan 5:c8918e47c566 2308 dir = dj.dir;
mkilivan 5:c8918e47c566 2309 #if !_FS_READONLY /* R/W configuration */
mkilivan 5:c8918e47c566 2310 if (res == FR_OK) {
mkilivan 5:c8918e47c566 2311 if (!dir) /* Current dir itself */
mkilivan 5:c8918e47c566 2312 res = FR_INVALID_NAME;
mkilivan 5:c8918e47c566 2313 #if _FS_LOCK
mkilivan 5:c8918e47c566 2314 else
mkilivan 5:c8918e47c566 2315 res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
mkilivan 5:c8918e47c566 2316 #endif
mkilivan 5:c8918e47c566 2317 }
mkilivan 5:c8918e47c566 2318 /* Create or Open a file */
mkilivan 5:c8918e47c566 2319 if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) {
mkilivan 5:c8918e47c566 2320 DWORD dw, cl;
mkilivan 5:c8918e47c566 2321
mkilivan 5:c8918e47c566 2322 if (res != FR_OK) { /* No file, create new */
mkilivan 5:c8918e47c566 2323 if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
mkilivan 5:c8918e47c566 2324 #if _FS_LOCK
mkilivan 5:c8918e47c566 2325 res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
mkilivan 5:c8918e47c566 2326 #else
mkilivan 5:c8918e47c566 2327 res = dir_register(&dj);
mkilivan 5:c8918e47c566 2328 #endif
mkilivan 5:c8918e47c566 2329 mode |= FA_CREATE_ALWAYS; /* File is created */
mkilivan 5:c8918e47c566 2330 dir = dj.dir; /* New entry */
mkilivan 5:c8918e47c566 2331 }
mkilivan 5:c8918e47c566 2332 else { /* Any object is already existing */
mkilivan 5:c8918e47c566 2333 if (dir[DIR_Attr] & (AM_RDO | AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */
mkilivan 5:c8918e47c566 2334 res = FR_DENIED;
mkilivan 5:c8918e47c566 2335 } else {
mkilivan 5:c8918e47c566 2336 if (mode & FA_CREATE_NEW) /* Cannot create as new file */
mkilivan 5:c8918e47c566 2337 res = FR_EXIST;
mkilivan 5:c8918e47c566 2338 }
mkilivan 5:c8918e47c566 2339 }
mkilivan 5:c8918e47c566 2340 if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
mkilivan 5:c8918e47c566 2341 dw = get_fattime(); /* Created time */
mkilivan 5:c8918e47c566 2342 ST_DWORD(dir+DIR_CrtTime, dw);
mkilivan 5:c8918e47c566 2343 dir[DIR_Attr] = 0; /* Reset attribute */
mkilivan 5:c8918e47c566 2344 ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
mkilivan 5:c8918e47c566 2345 cl = ld_clust(dj.fs, dir); /* Get start cluster */
mkilivan 5:c8918e47c566 2346 st_clust(dir, 0); /* cluster = 0 */
mkilivan 5:c8918e47c566 2347 dj.fs->wflag = 1;
mkilivan 5:c8918e47c566 2348 if (cl) { /* Remove the cluster chain if exist */
mkilivan 5:c8918e47c566 2349 dw = dj.fs->winsect;
mkilivan 5:c8918e47c566 2350 res = remove_chain(dj.fs, cl);
mkilivan 5:c8918e47c566 2351 if (res == FR_OK) {
mkilivan 5:c8918e47c566 2352 dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
mkilivan 5:c8918e47c566 2353 res = move_window(dj.fs, dw);
mkilivan 5:c8918e47c566 2354 }
mkilivan 5:c8918e47c566 2355 }
mkilivan 5:c8918e47c566 2356 }
mkilivan 5:c8918e47c566 2357 }
mkilivan 5:c8918e47c566 2358 else { /* Open an existing file */
mkilivan 5:c8918e47c566 2359 if (res == FR_OK) { /* Follow succeeded */
mkilivan 5:c8918e47c566 2360 if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
mkilivan 5:c8918e47c566 2361 res = FR_NO_FILE;
mkilivan 5:c8918e47c566 2362 } else {
mkilivan 5:c8918e47c566 2363 if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
mkilivan 5:c8918e47c566 2364 res = FR_DENIED;
mkilivan 5:c8918e47c566 2365 }
mkilivan 5:c8918e47c566 2366 }
mkilivan 5:c8918e47c566 2367 }
mkilivan 5:c8918e47c566 2368 if (res == FR_OK) {
mkilivan 5:c8918e47c566 2369 if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
mkilivan 5:c8918e47c566 2370 mode |= FA__WRITTEN;
mkilivan 5:c8918e47c566 2371 fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
mkilivan 5:c8918e47c566 2372 fp->dir_ptr = dir;
mkilivan 5:c8918e47c566 2373 #if _FS_LOCK
mkilivan 5:c8918e47c566 2374 fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
mkilivan 5:c8918e47c566 2375 if (!fp->lockid) res = FR_INT_ERR;
mkilivan 5:c8918e47c566 2376 #endif
mkilivan 5:c8918e47c566 2377 }
mkilivan 5:c8918e47c566 2378
mkilivan 5:c8918e47c566 2379 #else /* R/O configuration */
mkilivan 5:c8918e47c566 2380 if (res == FR_OK) { /* Follow succeeded */
mkilivan 5:c8918e47c566 2381 dir = dj.dir;
mkilivan 5:c8918e47c566 2382 if (!dir) { /* Current dir itself */
mkilivan 5:c8918e47c566 2383 res = FR_INVALID_NAME;
mkilivan 5:c8918e47c566 2384 } else {
mkilivan 5:c8918e47c566 2385 if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
mkilivan 5:c8918e47c566 2386 res = FR_NO_FILE;
mkilivan 5:c8918e47c566 2387 }
mkilivan 5:c8918e47c566 2388 }
mkilivan 5:c8918e47c566 2389 #endif
mkilivan 5:c8918e47c566 2390 FREE_BUF();
mkilivan 5:c8918e47c566 2391
mkilivan 5:c8918e47c566 2392 if (res == FR_OK) {
mkilivan 5:c8918e47c566 2393 fp->flag = mode; /* File access mode */
mkilivan 5:c8918e47c566 2394 fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
mkilivan 5:c8918e47c566 2395 fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
mkilivan 5:c8918e47c566 2396 fp->fptr = 0; /* File pointer */
mkilivan 5:c8918e47c566 2397 fp->dsect = 0;
mkilivan 5:c8918e47c566 2398 #if _USE_FASTSEEK
mkilivan 5:c8918e47c566 2399 fp->cltbl = 0; /* Normal seek mode */
mkilivan 5:c8918e47c566 2400 #endif
mkilivan 5:c8918e47c566 2401 fp->fs = dj.fs; fp->id = dj.fs->id; /* Validate file object */
mkilivan 5:c8918e47c566 2402 }
mkilivan 5:c8918e47c566 2403 }
mkilivan 5:c8918e47c566 2404
mkilivan 5:c8918e47c566 2405 LEAVE_FF(dj.fs, res);
mkilivan 5:c8918e47c566 2406 }
mkilivan 5:c8918e47c566 2407
mkilivan 5:c8918e47c566 2408
mkilivan 5:c8918e47c566 2409
mkilivan 5:c8918e47c566 2410
mkilivan 5:c8918e47c566 2411 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2412 /* Read File */
mkilivan 5:c8918e47c566 2413 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2414
mkilivan 5:c8918e47c566 2415 FRESULT f_read (
mkilivan 5:c8918e47c566 2416 FIL *fp, /* Pointer to the file object */
mkilivan 5:c8918e47c566 2417 void *buff, /* Pointer to data buffer */
mkilivan 5:c8918e47c566 2418 UINT btr, /* Number of bytes to read */
mkilivan 5:c8918e47c566 2419 UINT *br /* Pointer to number of bytes read */
mkilivan 5:c8918e47c566 2420 )
mkilivan 5:c8918e47c566 2421 {
mkilivan 5:c8918e47c566 2422 FRESULT res;
mkilivan 5:c8918e47c566 2423 DWORD clst, sect, remain;
mkilivan 5:c8918e47c566 2424 UINT rcnt, cc;
mkilivan 5:c8918e47c566 2425 BYTE csect, *rbuff = (BYTE *)buff;
mkilivan 5:c8918e47c566 2426
mkilivan 5:c8918e47c566 2427
mkilivan 5:c8918e47c566 2428 *br = 0; /* Clear read byte counter */
mkilivan 5:c8918e47c566 2429
mkilivan 5:c8918e47c566 2430 res = validate(fp); /* Check validity */
mkilivan 5:c8918e47c566 2431 if (res != FR_OK) LEAVE_FF(fp->fs, res);
mkilivan 5:c8918e47c566 2432 if (fp->flag & FA__ERROR) /* Aborted file? */
mkilivan 5:c8918e47c566 2433 LEAVE_FF(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 2434 if (!(fp->flag & FA_READ)) /* Check access mode */
mkilivan 5:c8918e47c566 2435 LEAVE_FF(fp->fs, FR_DENIED);
mkilivan 5:c8918e47c566 2436 remain = fp->fsize - fp->fptr;
mkilivan 5:c8918e47c566 2437 if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
mkilivan 5:c8918e47c566 2438
mkilivan 5:c8918e47c566 2439 for ( ; btr; /* Repeat until all data read */
mkilivan 5:c8918e47c566 2440 rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
mkilivan 5:c8918e47c566 2441 if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mkilivan 5:c8918e47c566 2442 csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mkilivan 5:c8918e47c566 2443 if (!csect) { /* On the cluster boundary? */
mkilivan 5:c8918e47c566 2444 if (fp->fptr == 0) { /* On the top of the file? */
mkilivan 5:c8918e47c566 2445 clst = fp->sclust; /* Follow from the origin */
mkilivan 5:c8918e47c566 2446 } else { /* Middle or end of the file */
mkilivan 5:c8918e47c566 2447 #if _USE_FASTSEEK
mkilivan 5:c8918e47c566 2448 if (fp->cltbl)
mkilivan 5:c8918e47c566 2449 clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mkilivan 5:c8918e47c566 2450 else
mkilivan 5:c8918e47c566 2451 #endif
mkilivan 5:c8918e47c566 2452 clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
mkilivan 5:c8918e47c566 2453 }
mkilivan 5:c8918e47c566 2454 if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 2455 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2456 fp->clust = clst; /* Update current cluster */
mkilivan 5:c8918e47c566 2457 }
mkilivan 5:c8918e47c566 2458 sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mkilivan 5:c8918e47c566 2459 if (!sect) ABORT(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 2460 sect += csect;
mkilivan 5:c8918e47c566 2461 cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
mkilivan 5:c8918e47c566 2462 if (cc) { /* Read maximum contiguous sectors directly */
mkilivan 5:c8918e47c566 2463 if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mkilivan 5:c8918e47c566 2464 cc = fp->fs->csize - csect;
mkilivan 5:c8918e47c566 2465 if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK)
mkilivan 5:c8918e47c566 2466 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2467 #if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
mkilivan 5:c8918e47c566 2468 #if _FS_TINY
mkilivan 5:c8918e47c566 2469 if (fp->fs->wflag && fp->fs->winsect - sect < cc)
mkilivan 5:c8918e47c566 2470 mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
mkilivan 5:c8918e47c566 2471 #else
mkilivan 5:c8918e47c566 2472 if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
mkilivan 5:c8918e47c566 2473 mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
mkilivan 5:c8918e47c566 2474 #endif
mkilivan 5:c8918e47c566 2475 #endif
mkilivan 5:c8918e47c566 2476 rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mkilivan 5:c8918e47c566 2477 continue;
mkilivan 5:c8918e47c566 2478 }
mkilivan 5:c8918e47c566 2479 #if !_FS_TINY
mkilivan 5:c8918e47c566 2480 if (fp->dsect != sect) { /* Load data sector if not in cache */
mkilivan 5:c8918e47c566 2481 #if !_FS_READONLY
mkilivan 5:c8918e47c566 2482 if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mkilivan 5:c8918e47c566 2483 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mkilivan 5:c8918e47c566 2484 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2485 fp->flag &= ~FA__DIRTY;
mkilivan 5:c8918e47c566 2486 }
mkilivan 5:c8918e47c566 2487 #endif
mkilivan 5:c8918e47c566 2488 if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
mkilivan 5:c8918e47c566 2489 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2490 }
mkilivan 5:c8918e47c566 2491 #endif
mkilivan 5:c8918e47c566 2492 fp->dsect = sect;
mkilivan 5:c8918e47c566 2493 }
mkilivan 5:c8918e47c566 2494 rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
mkilivan 5:c8918e47c566 2495 if (rcnt > btr) rcnt = btr;
mkilivan 5:c8918e47c566 2496 #if _FS_TINY
mkilivan 5:c8918e47c566 2497 if (move_window(fp->fs, fp->dsect)) /* Move sector window */
mkilivan 5:c8918e47c566 2498 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2499 mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
mkilivan 5:c8918e47c566 2500 #else
mkilivan 5:c8918e47c566 2501 mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
mkilivan 5:c8918e47c566 2502 #endif
mkilivan 5:c8918e47c566 2503 }
mkilivan 5:c8918e47c566 2504
mkilivan 5:c8918e47c566 2505 LEAVE_FF(fp->fs, FR_OK);
mkilivan 5:c8918e47c566 2506 }
mkilivan 5:c8918e47c566 2507
mkilivan 5:c8918e47c566 2508
mkilivan 5:c8918e47c566 2509
mkilivan 5:c8918e47c566 2510
mkilivan 5:c8918e47c566 2511 #if !_FS_READONLY
mkilivan 5:c8918e47c566 2512 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2513 /* Write File */
mkilivan 5:c8918e47c566 2514 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2515
mkilivan 5:c8918e47c566 2516 FRESULT f_write (
mkilivan 5:c8918e47c566 2517 FIL *fp, /* Pointer to the file object */
mkilivan 5:c8918e47c566 2518 const void *buff, /* Pointer to the data to be written */
mkilivan 5:c8918e47c566 2519 UINT btw, /* Number of bytes to write */
mkilivan 5:c8918e47c566 2520 UINT *bw /* Pointer to number of bytes written */
mkilivan 5:c8918e47c566 2521 )
mkilivan 5:c8918e47c566 2522 {
mkilivan 5:c8918e47c566 2523 FRESULT res;
mkilivan 5:c8918e47c566 2524 DWORD clst, sect;
mkilivan 5:c8918e47c566 2525 UINT wcnt, cc;
mkilivan 5:c8918e47c566 2526 const BYTE *wbuff = (const BYTE *)buff;
mkilivan 5:c8918e47c566 2527 BYTE csect;
mkilivan 5:c8918e47c566 2528
mkilivan 5:c8918e47c566 2529
mkilivan 5:c8918e47c566 2530 *bw = 0; /* Clear write byte counter */
mkilivan 5:c8918e47c566 2531
mkilivan 5:c8918e47c566 2532 res = validate(fp); /* Check validity */
mkilivan 5:c8918e47c566 2533 if (res != FR_OK) LEAVE_FF(fp->fs, res);
mkilivan 5:c8918e47c566 2534 if (fp->flag & FA__ERROR) /* Aborted file? */
mkilivan 5:c8918e47c566 2535 LEAVE_FF(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 2536 if (!(fp->flag & FA_WRITE)) /* Check access mode */
mkilivan 5:c8918e47c566 2537 LEAVE_FF(fp->fs, FR_DENIED);
mkilivan 5:c8918e47c566 2538 if ((DWORD)(fp->fsize + btw) < fp->fsize) btw = 0; /* File size cannot reach 4GB */
mkilivan 5:c8918e47c566 2539
mkilivan 5:c8918e47c566 2540 for ( ; btw; /* Repeat until all data written */
mkilivan 5:c8918e47c566 2541 wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
mkilivan 5:c8918e47c566 2542 if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mkilivan 5:c8918e47c566 2543 csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mkilivan 5:c8918e47c566 2544 if (!csect) { /* On the cluster boundary? */
mkilivan 5:c8918e47c566 2545 if (fp->fptr == 0) { /* On the top of the file? */
mkilivan 5:c8918e47c566 2546 clst = fp->sclust; /* Follow from the origin */
mkilivan 5:c8918e47c566 2547 if (clst == 0) /* When no cluster is allocated, */
mkilivan 5:c8918e47c566 2548 fp->sclust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
mkilivan 5:c8918e47c566 2549 } else { /* Middle or end of the file */
mkilivan 5:c8918e47c566 2550 #if _USE_FASTSEEK
mkilivan 5:c8918e47c566 2551 if (fp->cltbl)
mkilivan 5:c8918e47c566 2552 clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mkilivan 5:c8918e47c566 2553 else
mkilivan 5:c8918e47c566 2554 #endif
mkilivan 5:c8918e47c566 2555 clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
mkilivan 5:c8918e47c566 2556 }
mkilivan 5:c8918e47c566 2557 if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
mkilivan 5:c8918e47c566 2558 if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 2559 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2560 fp->clust = clst; /* Update current cluster */
mkilivan 5:c8918e47c566 2561 }
mkilivan 5:c8918e47c566 2562 #if _FS_TINY
mkilivan 5:c8918e47c566 2563 if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write-back sector cache */
mkilivan 5:c8918e47c566 2564 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2565 #else
mkilivan 5:c8918e47c566 2566 if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
mkilivan 5:c8918e47c566 2567 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mkilivan 5:c8918e47c566 2568 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2569 fp->flag &= ~FA__DIRTY;
mkilivan 5:c8918e47c566 2570 }
mkilivan 5:c8918e47c566 2571 #endif
mkilivan 5:c8918e47c566 2572 sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mkilivan 5:c8918e47c566 2573 if (!sect) ABORT(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 2574 sect += csect;
mkilivan 5:c8918e47c566 2575 cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
mkilivan 5:c8918e47c566 2576 if (cc) { /* Write maximum contiguous sectors directly */
mkilivan 5:c8918e47c566 2577 if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mkilivan 5:c8918e47c566 2578 cc = fp->fs->csize - csect;
mkilivan 5:c8918e47c566 2579 if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK)
mkilivan 5:c8918e47c566 2580 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2581 #if _FS_TINY
mkilivan 5:c8918e47c566 2582 if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mkilivan 5:c8918e47c566 2583 mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
mkilivan 5:c8918e47c566 2584 fp->fs->wflag = 0;
mkilivan 5:c8918e47c566 2585 }
mkilivan 5:c8918e47c566 2586 #else
mkilivan 5:c8918e47c566 2587 if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mkilivan 5:c8918e47c566 2588 mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
mkilivan 5:c8918e47c566 2589 fp->flag &= ~FA__DIRTY;
mkilivan 5:c8918e47c566 2590 }
mkilivan 5:c8918e47c566 2591 #endif
mkilivan 5:c8918e47c566 2592 wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mkilivan 5:c8918e47c566 2593 continue;
mkilivan 5:c8918e47c566 2594 }
mkilivan 5:c8918e47c566 2595 #if _FS_TINY
mkilivan 5:c8918e47c566 2596 if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
mkilivan 5:c8918e47c566 2597 if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2598 fp->fs->winsect = sect;
mkilivan 5:c8918e47c566 2599 }
mkilivan 5:c8918e47c566 2600 #else
mkilivan 5:c8918e47c566 2601 if (fp->dsect != sect) { /* Fill sector cache with file data */
mkilivan 5:c8918e47c566 2602 if (fp->fptr < fp->fsize &&
mkilivan 5:c8918e47c566 2603 disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
mkilivan 5:c8918e47c566 2604 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2605 }
mkilivan 5:c8918e47c566 2606 #endif
mkilivan 5:c8918e47c566 2607 fp->dsect = sect;
mkilivan 5:c8918e47c566 2608 }
mkilivan 5:c8918e47c566 2609 wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
mkilivan 5:c8918e47c566 2610 if (wcnt > btw) wcnt = btw;
mkilivan 5:c8918e47c566 2611 #if _FS_TINY
mkilivan 5:c8918e47c566 2612 if (move_window(fp->fs, fp->dsect)) /* Move sector window */
mkilivan 5:c8918e47c566 2613 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2614 mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mkilivan 5:c8918e47c566 2615 fp->fs->wflag = 1;
mkilivan 5:c8918e47c566 2616 #else
mkilivan 5:c8918e47c566 2617 mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mkilivan 5:c8918e47c566 2618 fp->flag |= FA__DIRTY;
mkilivan 5:c8918e47c566 2619 #endif
mkilivan 5:c8918e47c566 2620 }
mkilivan 5:c8918e47c566 2621
mkilivan 5:c8918e47c566 2622 if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
mkilivan 5:c8918e47c566 2623 fp->flag |= FA__WRITTEN; /* Set file change flag */
mkilivan 5:c8918e47c566 2624
mkilivan 5:c8918e47c566 2625 LEAVE_FF(fp->fs, FR_OK);
mkilivan 5:c8918e47c566 2626 }
mkilivan 5:c8918e47c566 2627
mkilivan 5:c8918e47c566 2628
mkilivan 5:c8918e47c566 2629
mkilivan 5:c8918e47c566 2630
mkilivan 5:c8918e47c566 2631 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2632 /* Synchronize the File Object */
mkilivan 5:c8918e47c566 2633 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2634
mkilivan 5:c8918e47c566 2635 FRESULT f_sync (
mkilivan 5:c8918e47c566 2636 FIL *fp /* Pointer to the file object */
mkilivan 5:c8918e47c566 2637 )
mkilivan 5:c8918e47c566 2638 {
mkilivan 5:c8918e47c566 2639 FRESULT res;
mkilivan 5:c8918e47c566 2640 DWORD tim;
mkilivan 5:c8918e47c566 2641 BYTE *dir;
mkilivan 5:c8918e47c566 2642
mkilivan 5:c8918e47c566 2643
mkilivan 5:c8918e47c566 2644 res = validate(fp); /* Check validity of the object */
mkilivan 5:c8918e47c566 2645 if (res == FR_OK) {
mkilivan 5:c8918e47c566 2646 if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
mkilivan 5:c8918e47c566 2647 #if !_FS_TINY /* Write-back dirty buffer */
mkilivan 5:c8918e47c566 2648 if (fp->flag & FA__DIRTY) {
mkilivan 5:c8918e47c566 2649 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mkilivan 5:c8918e47c566 2650 LEAVE_FF(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2651 fp->flag &= ~FA__DIRTY;
mkilivan 5:c8918e47c566 2652 }
mkilivan 5:c8918e47c566 2653 #endif
mkilivan 5:c8918e47c566 2654 /* Update the directory entry */
mkilivan 5:c8918e47c566 2655 res = move_window(fp->fs, fp->dir_sect);
mkilivan 5:c8918e47c566 2656 if (res == FR_OK) {
mkilivan 5:c8918e47c566 2657 dir = fp->dir_ptr;
mkilivan 5:c8918e47c566 2658 dir[DIR_Attr] |= AM_ARC; /* Set archive bit */
mkilivan 5:c8918e47c566 2659 ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
mkilivan 5:c8918e47c566 2660 st_clust(dir, fp->sclust); /* Update start cluster */
mkilivan 5:c8918e47c566 2661 tim = get_fattime(); /* Update updated time */
mkilivan 5:c8918e47c566 2662 ST_DWORD(dir+DIR_WrtTime, tim);
mkilivan 5:c8918e47c566 2663 ST_WORD(dir+DIR_LstAccDate, 0);
mkilivan 5:c8918e47c566 2664 fp->flag &= ~FA__WRITTEN;
mkilivan 5:c8918e47c566 2665 fp->fs->wflag = 1;
mkilivan 5:c8918e47c566 2666 res = sync(fp->fs);
mkilivan 5:c8918e47c566 2667 }
mkilivan 5:c8918e47c566 2668 }
mkilivan 5:c8918e47c566 2669 }
mkilivan 5:c8918e47c566 2670
mkilivan 5:c8918e47c566 2671 LEAVE_FF(fp->fs, res);
mkilivan 5:c8918e47c566 2672 }
mkilivan 5:c8918e47c566 2673
mkilivan 5:c8918e47c566 2674 #endif /* !_FS_READONLY */
mkilivan 5:c8918e47c566 2675
mkilivan 5:c8918e47c566 2676
mkilivan 5:c8918e47c566 2677
mkilivan 5:c8918e47c566 2678
mkilivan 5:c8918e47c566 2679 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2680 /* Close File */
mkilivan 5:c8918e47c566 2681 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2682
mkilivan 5:c8918e47c566 2683 FRESULT f_close (
mkilivan 5:c8918e47c566 2684 FIL *fp /* Pointer to the file object to be closed */
mkilivan 5:c8918e47c566 2685 )
mkilivan 5:c8918e47c566 2686 {
mkilivan 5:c8918e47c566 2687 FRESULT res;
mkilivan 5:c8918e47c566 2688
mkilivan 5:c8918e47c566 2689
mkilivan 5:c8918e47c566 2690 #if _FS_READONLY
mkilivan 5:c8918e47c566 2691 res = validate(fp);
mkilivan 5:c8918e47c566 2692 {
mkilivan 5:c8918e47c566 2693 #if _FS_REENTRANT
mkilivan 5:c8918e47c566 2694 FATFS *fs = fp->fs;
mkilivan 5:c8918e47c566 2695 #endif
mkilivan 5:c8918e47c566 2696 if (res == FR_OK) fp->fs = 0; /* Discard file object */
mkilivan 5:c8918e47c566 2697 LEAVE_FF(fs, res);
mkilivan 5:c8918e47c566 2698 }
mkilivan 5:c8918e47c566 2699 #else
mkilivan 5:c8918e47c566 2700 res = f_sync(fp); /* Flush cached data */
mkilivan 5:c8918e47c566 2701 #if _FS_LOCK
mkilivan 5:c8918e47c566 2702 if (res == FR_OK) { /* Decrement open counter */
mkilivan 5:c8918e47c566 2703 #if _FS_REENTRANT
mkilivan 5:c8918e47c566 2704 FATFS *fs = fp->fs;;
mkilivan 5:c8918e47c566 2705 res = validate(fp);
mkilivan 5:c8918e47c566 2706 if (res == FR_OK) {
mkilivan 5:c8918e47c566 2707 res = dec_lock(fp->lockid);
mkilivan 5:c8918e47c566 2708 unlock_fs(fs, FR_OK);
mkilivan 5:c8918e47c566 2709 }
mkilivan 5:c8918e47c566 2710 #else
mkilivan 5:c8918e47c566 2711 res = dec_lock(fp->lockid);
mkilivan 5:c8918e47c566 2712 #endif
mkilivan 5:c8918e47c566 2713 }
mkilivan 5:c8918e47c566 2714 #endif
mkilivan 5:c8918e47c566 2715 if (res == FR_OK) fp->fs = 0; /* Discard file object */
mkilivan 5:c8918e47c566 2716 return res;
mkilivan 5:c8918e47c566 2717 #endif
mkilivan 5:c8918e47c566 2718 }
mkilivan 5:c8918e47c566 2719
mkilivan 5:c8918e47c566 2720
mkilivan 5:c8918e47c566 2721
mkilivan 5:c8918e47c566 2722
mkilivan 5:c8918e47c566 2723 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2724 /* Current Drive/Directory Handlings */
mkilivan 5:c8918e47c566 2725 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2726
mkilivan 5:c8918e47c566 2727 #if _FS_RPATH >= 1
mkilivan 5:c8918e47c566 2728
mkilivan 5:c8918e47c566 2729 FRESULT f_chdrive (
mkilivan 5:c8918e47c566 2730 BYTE drv /* Drive number */
mkilivan 5:c8918e47c566 2731 )
mkilivan 5:c8918e47c566 2732 {
mkilivan 5:c8918e47c566 2733 if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
mkilivan 5:c8918e47c566 2734
mkilivan 5:c8918e47c566 2735 CurrVol = drv;
mkilivan 5:c8918e47c566 2736
mkilivan 5:c8918e47c566 2737 return FR_OK;
mkilivan 5:c8918e47c566 2738 }
mkilivan 5:c8918e47c566 2739
mkilivan 5:c8918e47c566 2740
mkilivan 5:c8918e47c566 2741
mkilivan 5:c8918e47c566 2742 FRESULT f_chdir (
mkilivan 5:c8918e47c566 2743 const TCHAR *path /* Pointer to the directory path */
mkilivan 5:c8918e47c566 2744 )
mkilivan 5:c8918e47c566 2745 {
mkilivan 5:c8918e47c566 2746 FRESULT res;
mkilivan 5:c8918e47c566 2747 DIR dj;
mkilivan 5:c8918e47c566 2748 DEF_NAMEBUF;
mkilivan 5:c8918e47c566 2749
mkilivan 5:c8918e47c566 2750
mkilivan 5:c8918e47c566 2751 res = chk_mounted(&path, &dj.fs, 0);
mkilivan 5:c8918e47c566 2752 if (res == FR_OK) {
mkilivan 5:c8918e47c566 2753 INIT_BUF(dj);
mkilivan 5:c8918e47c566 2754 res = follow_path(&dj, path); /* Follow the path */
mkilivan 5:c8918e47c566 2755 FREE_BUF();
mkilivan 5:c8918e47c566 2756 if (res == FR_OK) { /* Follow completed */
mkilivan 5:c8918e47c566 2757 if (!dj.dir) {
mkilivan 5:c8918e47c566 2758 dj.fs->cdir = dj.sclust; /* Start directory itself */
mkilivan 5:c8918e47c566 2759 } else {
mkilivan 5:c8918e47c566 2760 if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
mkilivan 5:c8918e47c566 2761 dj.fs->cdir = ld_clust(dj.fs, dj.dir);
mkilivan 5:c8918e47c566 2762 else
mkilivan 5:c8918e47c566 2763 res = FR_NO_PATH; /* Reached but a file */
mkilivan 5:c8918e47c566 2764 }
mkilivan 5:c8918e47c566 2765 }
mkilivan 5:c8918e47c566 2766 if (res == FR_NO_FILE) res = FR_NO_PATH;
mkilivan 5:c8918e47c566 2767 }
mkilivan 5:c8918e47c566 2768
mkilivan 5:c8918e47c566 2769 LEAVE_FF(dj.fs, res);
mkilivan 5:c8918e47c566 2770 }
mkilivan 5:c8918e47c566 2771
mkilivan 5:c8918e47c566 2772
mkilivan 5:c8918e47c566 2773 #if _FS_RPATH >= 2
mkilivan 5:c8918e47c566 2774 FRESULT f_getcwd (
mkilivan 5:c8918e47c566 2775 TCHAR *path, /* Pointer to the directory path */
mkilivan 5:c8918e47c566 2776 UINT sz_path /* Size of path */
mkilivan 5:c8918e47c566 2777 )
mkilivan 5:c8918e47c566 2778 {
mkilivan 5:c8918e47c566 2779 FRESULT res;
mkilivan 5:c8918e47c566 2780 DIR dj;
mkilivan 5:c8918e47c566 2781 UINT i, n;
mkilivan 5:c8918e47c566 2782 DWORD ccl;
mkilivan 5:c8918e47c566 2783 TCHAR *tp;
mkilivan 5:c8918e47c566 2784 FILINFO fno;
mkilivan 5:c8918e47c566 2785 DEF_NAMEBUF;
mkilivan 5:c8918e47c566 2786
mkilivan 5:c8918e47c566 2787
mkilivan 5:c8918e47c566 2788 *path = 0;
mkilivan 5:c8918e47c566 2789 res = chk_mounted((const TCHAR**)&path, &dj.fs, 0); /* Get current volume */
mkilivan 5:c8918e47c566 2790 if (res == FR_OK) {
mkilivan 5:c8918e47c566 2791 INIT_BUF(dj);
mkilivan 5:c8918e47c566 2792 i = sz_path; /* Bottom of buffer (dir stack base) */
mkilivan 5:c8918e47c566 2793 dj.sclust = dj.fs->cdir; /* Start to follow upper dir from current dir */
mkilivan 5:c8918e47c566 2794 while ((ccl = dj.sclust) != 0) { /* Repeat while current dir is a sub-dir */
mkilivan 5:c8918e47c566 2795 res = dir_sdi(&dj, 1); /* Get parent dir */
mkilivan 5:c8918e47c566 2796 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 2797 res = dir_read(&dj);
mkilivan 5:c8918e47c566 2798 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 2799 dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent dir */
mkilivan 5:c8918e47c566 2800 res = dir_sdi(&dj, 0);
mkilivan 5:c8918e47c566 2801 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 2802 do { /* Find the entry links to the child dir */
mkilivan 5:c8918e47c566 2803 res = dir_read(&dj);
mkilivan 5:c8918e47c566 2804 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 2805 if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
mkilivan 5:c8918e47c566 2806 res = dir_next(&dj, 0);
mkilivan 5:c8918e47c566 2807 } while (res == FR_OK);
mkilivan 5:c8918e47c566 2808 if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
mkilivan 5:c8918e47c566 2809 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 2810 #if _USE_LFN
mkilivan 5:c8918e47c566 2811 fno.lfname = path;
mkilivan 5:c8918e47c566 2812 fno.lfsize = i;
mkilivan 5:c8918e47c566 2813 #endif
mkilivan 5:c8918e47c566 2814 get_fileinfo(&dj, &fno); /* Get the dir name and push it to the buffer */
mkilivan 5:c8918e47c566 2815 tp = fno.fname;
mkilivan 5:c8918e47c566 2816 if (_USE_LFN && *path) tp = path;
mkilivan 5:c8918e47c566 2817 for (n = 0; tp[n]; n++) ;
mkilivan 5:c8918e47c566 2818 if (i < n + 3) {
mkilivan 5:c8918e47c566 2819 res = FR_NOT_ENOUGH_CORE; break;
mkilivan 5:c8918e47c566 2820 }
mkilivan 5:c8918e47c566 2821 while (n) path[--i] = tp[--n];
mkilivan 5:c8918e47c566 2822 path[--i] = '/';
mkilivan 5:c8918e47c566 2823 }
mkilivan 5:c8918e47c566 2824 tp = path;
mkilivan 5:c8918e47c566 2825 if (res == FR_OK) {
mkilivan 5:c8918e47c566 2826 *tp++ = '0' + CurrVol; /* Put drive number */
mkilivan 5:c8918e47c566 2827 *tp++ = ':';
mkilivan 5:c8918e47c566 2828 if (i == sz_path) { /* Root-dir */
mkilivan 5:c8918e47c566 2829 *tp++ = '/';
mkilivan 5:c8918e47c566 2830 } else { /* Sub-dir */
mkilivan 5:c8918e47c566 2831 do /* Add stacked path str */
mkilivan 5:c8918e47c566 2832 *tp++ = path[i++];
mkilivan 5:c8918e47c566 2833 while (i < sz_path);
mkilivan 5:c8918e47c566 2834 }
mkilivan 5:c8918e47c566 2835 }
mkilivan 5:c8918e47c566 2836 *tp = 0;
mkilivan 5:c8918e47c566 2837 FREE_BUF();
mkilivan 5:c8918e47c566 2838 }
mkilivan 5:c8918e47c566 2839
mkilivan 5:c8918e47c566 2840 LEAVE_FF(dj.fs, res);
mkilivan 5:c8918e47c566 2841 }
mkilivan 5:c8918e47c566 2842 #endif /* _FS_RPATH >= 2 */
mkilivan 5:c8918e47c566 2843 #endif /* _FS_RPATH >= 1 */
mkilivan 5:c8918e47c566 2844
mkilivan 5:c8918e47c566 2845
mkilivan 5:c8918e47c566 2846
mkilivan 5:c8918e47c566 2847 #if _FS_MINIMIZE <= 2
mkilivan 5:c8918e47c566 2848 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2849 /* Seek File R/W Pointer */
mkilivan 5:c8918e47c566 2850 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 2851
mkilivan 5:c8918e47c566 2852 FRESULT f_lseek (
mkilivan 5:c8918e47c566 2853 FIL *fp, /* Pointer to the file object */
mkilivan 5:c8918e47c566 2854 DWORD ofs /* File pointer from top of file */
mkilivan 5:c8918e47c566 2855 )
mkilivan 5:c8918e47c566 2856 {
mkilivan 5:c8918e47c566 2857 FRESULT res;
mkilivan 5:c8918e47c566 2858
mkilivan 5:c8918e47c566 2859
mkilivan 5:c8918e47c566 2860 res = validate(fp); /* Check validity of the object */
mkilivan 5:c8918e47c566 2861 if (res != FR_OK) LEAVE_FF(fp->fs, res);
mkilivan 5:c8918e47c566 2862 if (fp->flag & FA__ERROR) /* Check abort flag */
mkilivan 5:c8918e47c566 2863 LEAVE_FF(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 2864
mkilivan 5:c8918e47c566 2865 #if _USE_FASTSEEK
mkilivan 5:c8918e47c566 2866 if (fp->cltbl) { /* Fast seek */
mkilivan 5:c8918e47c566 2867 DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
mkilivan 5:c8918e47c566 2868
mkilivan 5:c8918e47c566 2869 if (ofs == CREATE_LINKMAP) { /* Create CLMT */
mkilivan 5:c8918e47c566 2870 tbl = fp->cltbl;
mkilivan 5:c8918e47c566 2871 tlen = *tbl++; ulen = 2; /* Given table size and required table size */
mkilivan 5:c8918e47c566 2872 cl = fp->sclust; /* Top of the chain */
mkilivan 5:c8918e47c566 2873 if (cl) {
mkilivan 5:c8918e47c566 2874 do {
mkilivan 5:c8918e47c566 2875 /* Get a fragment */
mkilivan 5:c8918e47c566 2876 tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
mkilivan 5:c8918e47c566 2877 do {
mkilivan 5:c8918e47c566 2878 pcl = cl; ncl++;
mkilivan 5:c8918e47c566 2879 cl = get_fat(fp->fs, cl);
mkilivan 5:c8918e47c566 2880 if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 2881 if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2882 } while (cl == pcl + 1);
mkilivan 5:c8918e47c566 2883 if (ulen <= tlen) { /* Store the length and top of the fragment */
mkilivan 5:c8918e47c566 2884 *tbl++ = ncl; *tbl++ = tcl;
mkilivan 5:c8918e47c566 2885 }
mkilivan 5:c8918e47c566 2886 } while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
mkilivan 5:c8918e47c566 2887 }
mkilivan 5:c8918e47c566 2888 *fp->cltbl = ulen; /* Number of items used */
mkilivan 5:c8918e47c566 2889 if (ulen <= tlen)
mkilivan 5:c8918e47c566 2890 *tbl = 0; /* Terminate table */
mkilivan 5:c8918e47c566 2891 else
mkilivan 5:c8918e47c566 2892 res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
mkilivan 5:c8918e47c566 2893
mkilivan 5:c8918e47c566 2894 } else { /* Fast seek */
mkilivan 5:c8918e47c566 2895 if (ofs > fp->fsize) /* Clip offset at the file size */
mkilivan 5:c8918e47c566 2896 ofs = fp->fsize;
mkilivan 5:c8918e47c566 2897 fp->fptr = ofs; /* Set file pointer */
mkilivan 5:c8918e47c566 2898 if (ofs) {
mkilivan 5:c8918e47c566 2899 fp->clust = clmt_clust(fp, ofs - 1);
mkilivan 5:c8918e47c566 2900 dsc = clust2sect(fp->fs, fp->clust);
mkilivan 5:c8918e47c566 2901 if (!dsc) ABORT(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 2902 dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
mkilivan 5:c8918e47c566 2903 if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
mkilivan 5:c8918e47c566 2904 #if !_FS_TINY
mkilivan 5:c8918e47c566 2905 #if !_FS_READONLY
mkilivan 5:c8918e47c566 2906 if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mkilivan 5:c8918e47c566 2907 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mkilivan 5:c8918e47c566 2908 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2909 fp->flag &= ~FA__DIRTY;
mkilivan 5:c8918e47c566 2910 }
mkilivan 5:c8918e47c566 2911 #endif
mkilivan 5:c8918e47c566 2912 if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
mkilivan 5:c8918e47c566 2913 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2914 #endif
mkilivan 5:c8918e47c566 2915 fp->dsect = dsc;
mkilivan 5:c8918e47c566 2916 }
mkilivan 5:c8918e47c566 2917 }
mkilivan 5:c8918e47c566 2918 }
mkilivan 5:c8918e47c566 2919 } else
mkilivan 5:c8918e47c566 2920 #endif
mkilivan 5:c8918e47c566 2921
mkilivan 5:c8918e47c566 2922 /* Normal Seek */
mkilivan 5:c8918e47c566 2923 {
mkilivan 5:c8918e47c566 2924 DWORD clst, bcs, nsect, ifptr;
mkilivan 5:c8918e47c566 2925
mkilivan 5:c8918e47c566 2926 if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
mkilivan 5:c8918e47c566 2927 #if !_FS_READONLY
mkilivan 5:c8918e47c566 2928 && !(fp->flag & FA_WRITE)
mkilivan 5:c8918e47c566 2929 #endif
mkilivan 5:c8918e47c566 2930 ) ofs = fp->fsize;
mkilivan 5:c8918e47c566 2931
mkilivan 5:c8918e47c566 2932 ifptr = fp->fptr;
mkilivan 5:c8918e47c566 2933 fp->fptr = nsect = 0;
mkilivan 5:c8918e47c566 2934 if (ofs) {
mkilivan 5:c8918e47c566 2935 bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
mkilivan 5:c8918e47c566 2936 if (ifptr > 0 &&
mkilivan 5:c8918e47c566 2937 (ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
mkilivan 5:c8918e47c566 2938 fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
mkilivan 5:c8918e47c566 2939 ofs -= fp->fptr;
mkilivan 5:c8918e47c566 2940 clst = fp->clust;
mkilivan 5:c8918e47c566 2941 } else { /* When seek to back cluster, */
mkilivan 5:c8918e47c566 2942 clst = fp->sclust; /* start from the first cluster */
mkilivan 5:c8918e47c566 2943 #if !_FS_READONLY
mkilivan 5:c8918e47c566 2944 if (clst == 0) { /* If no cluster chain, create a new chain */
mkilivan 5:c8918e47c566 2945 clst = create_chain(fp->fs, 0);
mkilivan 5:c8918e47c566 2946 if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 2947 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2948 fp->sclust = clst;
mkilivan 5:c8918e47c566 2949 }
mkilivan 5:c8918e47c566 2950 #endif
mkilivan 5:c8918e47c566 2951 fp->clust = clst;
mkilivan 5:c8918e47c566 2952 }
mkilivan 5:c8918e47c566 2953 if (clst != 0) {
mkilivan 5:c8918e47c566 2954 while (ofs > bcs) { /* Cluster following loop */
mkilivan 5:c8918e47c566 2955 #if !_FS_READONLY
mkilivan 5:c8918e47c566 2956 if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
mkilivan 5:c8918e47c566 2957 clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
mkilivan 5:c8918e47c566 2958 if (clst == 0) { /* When disk gets full, clip file size */
mkilivan 5:c8918e47c566 2959 ofs = bcs; break;
mkilivan 5:c8918e47c566 2960 }
mkilivan 5:c8918e47c566 2961 } else
mkilivan 5:c8918e47c566 2962 #endif
mkilivan 5:c8918e47c566 2963 clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
mkilivan 5:c8918e47c566 2964 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2965 if (clst <= 1 || clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 2966 fp->clust = clst;
mkilivan 5:c8918e47c566 2967 fp->fptr += bcs;
mkilivan 5:c8918e47c566 2968 ofs -= bcs;
mkilivan 5:c8918e47c566 2969 }
mkilivan 5:c8918e47c566 2970 fp->fptr += ofs;
mkilivan 5:c8918e47c566 2971 if (ofs % SS(fp->fs)) {
mkilivan 5:c8918e47c566 2972 nsect = clust2sect(fp->fs, clst); /* Current sector */
mkilivan 5:c8918e47c566 2973 if (!nsect) ABORT(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 2974 nsect += ofs / SS(fp->fs);
mkilivan 5:c8918e47c566 2975 }
mkilivan 5:c8918e47c566 2976 }
mkilivan 5:c8918e47c566 2977 }
mkilivan 5:c8918e47c566 2978 if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
mkilivan 5:c8918e47c566 2979 #if !_FS_TINY
mkilivan 5:c8918e47c566 2980 #if !_FS_READONLY
mkilivan 5:c8918e47c566 2981 if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mkilivan 5:c8918e47c566 2982 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mkilivan 5:c8918e47c566 2983 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2984 fp->flag &= ~FA__DIRTY;
mkilivan 5:c8918e47c566 2985 }
mkilivan 5:c8918e47c566 2986 #endif
mkilivan 5:c8918e47c566 2987 if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
mkilivan 5:c8918e47c566 2988 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 2989 #endif
mkilivan 5:c8918e47c566 2990 fp->dsect = nsect;
mkilivan 5:c8918e47c566 2991 }
mkilivan 5:c8918e47c566 2992 #if !_FS_READONLY
mkilivan 5:c8918e47c566 2993 if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
mkilivan 5:c8918e47c566 2994 fp->fsize = fp->fptr;
mkilivan 5:c8918e47c566 2995 fp->flag |= FA__WRITTEN;
mkilivan 5:c8918e47c566 2996 }
mkilivan 5:c8918e47c566 2997 #endif
mkilivan 5:c8918e47c566 2998 }
mkilivan 5:c8918e47c566 2999
mkilivan 5:c8918e47c566 3000 LEAVE_FF(fp->fs, res);
mkilivan 5:c8918e47c566 3001 }
mkilivan 5:c8918e47c566 3002
mkilivan 5:c8918e47c566 3003
mkilivan 5:c8918e47c566 3004
mkilivan 5:c8918e47c566 3005 #if _FS_MINIMIZE <= 1
mkilivan 5:c8918e47c566 3006 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3007 /* Create a Directory Object */
mkilivan 5:c8918e47c566 3008 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3009
mkilivan 5:c8918e47c566 3010 FRESULT f_opendir (
mkilivan 5:c8918e47c566 3011 FATFS_DIR *dj, /* Pointer to directory object to create */
mkilivan 5:c8918e47c566 3012 const TCHAR *path /* Pointer to the directory path */
mkilivan 5:c8918e47c566 3013 )
mkilivan 5:c8918e47c566 3014 {
mkilivan 5:c8918e47c566 3015 FRESULT res;
mkilivan 5:c8918e47c566 3016 FATFS *fs;
mkilivan 5:c8918e47c566 3017 DEF_NAMEBUF;
mkilivan 5:c8918e47c566 3018
mkilivan 5:c8918e47c566 3019
mkilivan 5:c8918e47c566 3020 if (!dj) return FR_INVALID_OBJECT;
mkilivan 5:c8918e47c566 3021
mkilivan 5:c8918e47c566 3022 res = chk_mounted(&path, &dj->fs, 0);
mkilivan 5:c8918e47c566 3023 fs = dj->fs;
mkilivan 5:c8918e47c566 3024 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3025 INIT_BUF(*dj);
mkilivan 5:c8918e47c566 3026 res = follow_path(dj, path); /* Follow the path to the directory */
mkilivan 5:c8918e47c566 3027 FREE_BUF();
mkilivan 5:c8918e47c566 3028 if (res == FR_OK) { /* Follow completed */
mkilivan 5:c8918e47c566 3029 if (dj->dir) { /* It is not the root dir */
mkilivan 5:c8918e47c566 3030 if (dj->dir[DIR_Attr] & AM_DIR) { /* The object is a directory */
mkilivan 5:c8918e47c566 3031 dj->sclust = ld_clust(fs, dj->dir);
mkilivan 5:c8918e47c566 3032 } else { /* The object is not a directory */
mkilivan 5:c8918e47c566 3033 res = FR_NO_PATH;
mkilivan 5:c8918e47c566 3034 }
mkilivan 5:c8918e47c566 3035 }
mkilivan 5:c8918e47c566 3036 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3037 dj->id = fs->id;
mkilivan 5:c8918e47c566 3038 res = dir_sdi(dj, 0); /* Rewind dir */
mkilivan 5:c8918e47c566 3039 }
mkilivan 5:c8918e47c566 3040 }
mkilivan 5:c8918e47c566 3041 if (res == FR_NO_FILE) res = FR_NO_PATH;
mkilivan 5:c8918e47c566 3042 if (res != FR_OK) dj->fs = 0; /* Invalidate the dir object if function faild */
mkilivan 5:c8918e47c566 3043 } else {
mkilivan 5:c8918e47c566 3044 dj->fs = 0;
mkilivan 5:c8918e47c566 3045 }
mkilivan 5:c8918e47c566 3046
mkilivan 5:c8918e47c566 3047 LEAVE_FF(fs, res);
mkilivan 5:c8918e47c566 3048 }
mkilivan 5:c8918e47c566 3049
mkilivan 5:c8918e47c566 3050
mkilivan 5:c8918e47c566 3051
mkilivan 5:c8918e47c566 3052
mkilivan 5:c8918e47c566 3053 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3054 /* Read Directory Entry in Sequence */
mkilivan 5:c8918e47c566 3055 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3056
mkilivan 5:c8918e47c566 3057 FRESULT f_readdir (
mkilivan 5:c8918e47c566 3058 FATFS_DIR *dj, /* Pointer to the open directory object */
mkilivan 5:c8918e47c566 3059 FILINFO *fno /* Pointer to file information to return */
mkilivan 5:c8918e47c566 3060 )
mkilivan 5:c8918e47c566 3061 {
mkilivan 5:c8918e47c566 3062 FRESULT res;
mkilivan 5:c8918e47c566 3063 DEF_NAMEBUF;
mkilivan 5:c8918e47c566 3064
mkilivan 5:c8918e47c566 3065
mkilivan 5:c8918e47c566 3066 res = validate(dj); /* Check validity of the object */
mkilivan 5:c8918e47c566 3067 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3068 if (!fno) {
mkilivan 5:c8918e47c566 3069 res = dir_sdi(dj, 0); /* Rewind the directory object */
mkilivan 5:c8918e47c566 3070 } else {
mkilivan 5:c8918e47c566 3071 INIT_BUF(*dj);
mkilivan 5:c8918e47c566 3072 res = dir_read(dj); /* Read an directory item */
mkilivan 5:c8918e47c566 3073 if (res == FR_NO_FILE) { /* Reached end of dir */
mkilivan 5:c8918e47c566 3074 dj->sect = 0;
mkilivan 5:c8918e47c566 3075 res = FR_OK;
mkilivan 5:c8918e47c566 3076 }
mkilivan 5:c8918e47c566 3077 if (res == FR_OK) { /* A valid entry is found */
mkilivan 5:c8918e47c566 3078 get_fileinfo(dj, fno); /* Get the object information */
mkilivan 5:c8918e47c566 3079 res = dir_next(dj, 0); /* Increment index for next */
mkilivan 5:c8918e47c566 3080 if (res == FR_NO_FILE) {
mkilivan 5:c8918e47c566 3081 dj->sect = 0;
mkilivan 5:c8918e47c566 3082 res = FR_OK;
mkilivan 5:c8918e47c566 3083 }
mkilivan 5:c8918e47c566 3084 }
mkilivan 5:c8918e47c566 3085 FREE_BUF();
mkilivan 5:c8918e47c566 3086 }
mkilivan 5:c8918e47c566 3087 }
mkilivan 5:c8918e47c566 3088
mkilivan 5:c8918e47c566 3089 LEAVE_FF(dj->fs, res);
mkilivan 5:c8918e47c566 3090 }
mkilivan 5:c8918e47c566 3091
mkilivan 5:c8918e47c566 3092
mkilivan 5:c8918e47c566 3093
mkilivan 5:c8918e47c566 3094 #if _FS_MINIMIZE == 0
mkilivan 5:c8918e47c566 3095 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3096 /* Get File Status */
mkilivan 5:c8918e47c566 3097 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3098
mkilivan 5:c8918e47c566 3099 FRESULT f_stat (
mkilivan 5:c8918e47c566 3100 const TCHAR *path, /* Pointer to the file path */
mkilivan 5:c8918e47c566 3101 FILINFO *fno /* Pointer to file information to return */
mkilivan 5:c8918e47c566 3102 )
mkilivan 5:c8918e47c566 3103 {
mkilivan 5:c8918e47c566 3104 FRESULT res;
mkilivan 5:c8918e47c566 3105 FATFS_DIR dj;
mkilivan 5:c8918e47c566 3106 DEF_NAMEBUF;
mkilivan 5:c8918e47c566 3107
mkilivan 5:c8918e47c566 3108
mkilivan 5:c8918e47c566 3109 res = chk_mounted(&path, &dj.fs, 0);
mkilivan 5:c8918e47c566 3110 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3111 INIT_BUF(dj);
mkilivan 5:c8918e47c566 3112 res = follow_path(&dj, path); /* Follow the file path */
mkilivan 5:c8918e47c566 3113 if (res == FR_OK) { /* Follow completed */
mkilivan 5:c8918e47c566 3114 if (dj.dir) /* Found an object */
mkilivan 5:c8918e47c566 3115 get_fileinfo(&dj, fno);
mkilivan 5:c8918e47c566 3116 else /* It is root dir */
mkilivan 5:c8918e47c566 3117 res = FR_INVALID_NAME;
mkilivan 5:c8918e47c566 3118 }
mkilivan 5:c8918e47c566 3119 FREE_BUF();
mkilivan 5:c8918e47c566 3120 }
mkilivan 5:c8918e47c566 3121
mkilivan 5:c8918e47c566 3122 LEAVE_FF(dj.fs, res);
mkilivan 5:c8918e47c566 3123 }
mkilivan 5:c8918e47c566 3124
mkilivan 5:c8918e47c566 3125
mkilivan 5:c8918e47c566 3126
mkilivan 5:c8918e47c566 3127 #if !_FS_READONLY
mkilivan 5:c8918e47c566 3128 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3129 /* Get Number of Free Clusters */
mkilivan 5:c8918e47c566 3130 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3131
mkilivan 5:c8918e47c566 3132 FRESULT f_getfree (
mkilivan 5:c8918e47c566 3133 const TCHAR *path, /* Pointer to the logical drive number (root dir) */
mkilivan 5:c8918e47c566 3134 DWORD *nclst, /* Pointer to the variable to return number of free clusters */
mkilivan 5:c8918e47c566 3135 FATFS **fatfs /* Pointer to pointer to corresponding file system object to return */
mkilivan 5:c8918e47c566 3136 )
mkilivan 5:c8918e47c566 3137 {
mkilivan 5:c8918e47c566 3138 FRESULT res;
mkilivan 5:c8918e47c566 3139 FATFS *fs;
mkilivan 5:c8918e47c566 3140 DWORD n, clst, sect, stat;
mkilivan 5:c8918e47c566 3141 UINT i;
mkilivan 5:c8918e47c566 3142 BYTE fat, *p;
mkilivan 5:c8918e47c566 3143
mkilivan 5:c8918e47c566 3144
mkilivan 5:c8918e47c566 3145 /* Get drive number */
mkilivan 5:c8918e47c566 3146 res = chk_mounted(&path, fatfs, 0);
mkilivan 5:c8918e47c566 3147 fs = *fatfs;
mkilivan 5:c8918e47c566 3148 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3149 /* If free_clust is valid, return it without full cluster scan */
mkilivan 5:c8918e47c566 3150 if (fs->free_clust <= fs->n_fatent - 2) {
mkilivan 5:c8918e47c566 3151 *nclst = fs->free_clust;
mkilivan 5:c8918e47c566 3152 } else {
mkilivan 5:c8918e47c566 3153 /* Get number of free clusters */
mkilivan 5:c8918e47c566 3154 fat = fs->fs_type;
mkilivan 5:c8918e47c566 3155 n = 0;
mkilivan 5:c8918e47c566 3156 if (fat == FS_FAT12) {
mkilivan 5:c8918e47c566 3157 clst = 2;
mkilivan 5:c8918e47c566 3158 do {
mkilivan 5:c8918e47c566 3159 stat = get_fat(fs, clst);
mkilivan 5:c8918e47c566 3160 if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
mkilivan 5:c8918e47c566 3161 if (stat == 1) { res = FR_INT_ERR; break; }
mkilivan 5:c8918e47c566 3162 if (stat == 0) n++;
mkilivan 5:c8918e47c566 3163 } while (++clst < fs->n_fatent);
mkilivan 5:c8918e47c566 3164 } else {
mkilivan 5:c8918e47c566 3165 clst = fs->n_fatent;
mkilivan 5:c8918e47c566 3166 sect = fs->fatbase;
mkilivan 5:c8918e47c566 3167 i = 0; p = 0;
mkilivan 5:c8918e47c566 3168 do {
mkilivan 5:c8918e47c566 3169 if (!i) {
mkilivan 5:c8918e47c566 3170 res = move_window(fs, sect++);
mkilivan 5:c8918e47c566 3171 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 3172 p = fs->win;
mkilivan 5:c8918e47c566 3173 i = SS(fs);
mkilivan 5:c8918e47c566 3174 }
mkilivan 5:c8918e47c566 3175 if (fat == FS_FAT16) {
mkilivan 5:c8918e47c566 3176 if (LD_WORD(p) == 0) n++;
mkilivan 5:c8918e47c566 3177 p += 2; i -= 2;
mkilivan 5:c8918e47c566 3178 } else {
mkilivan 5:c8918e47c566 3179 if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
mkilivan 5:c8918e47c566 3180 p += 4; i -= 4;
mkilivan 5:c8918e47c566 3181 }
mkilivan 5:c8918e47c566 3182 } while (--clst);
mkilivan 5:c8918e47c566 3183 }
mkilivan 5:c8918e47c566 3184 fs->free_clust = n;
mkilivan 5:c8918e47c566 3185 if (fat == FS_FAT32) fs->fsi_flag = 1;
mkilivan 5:c8918e47c566 3186 *nclst = n;
mkilivan 5:c8918e47c566 3187 }
mkilivan 5:c8918e47c566 3188 }
mkilivan 5:c8918e47c566 3189 LEAVE_FF(fs, res);
mkilivan 5:c8918e47c566 3190 }
mkilivan 5:c8918e47c566 3191
mkilivan 5:c8918e47c566 3192
mkilivan 5:c8918e47c566 3193
mkilivan 5:c8918e47c566 3194
mkilivan 5:c8918e47c566 3195 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3196 /* Truncate File */
mkilivan 5:c8918e47c566 3197 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3198
mkilivan 5:c8918e47c566 3199 FRESULT f_truncate (
mkilivan 5:c8918e47c566 3200 FIL *fp /* Pointer to the file object */
mkilivan 5:c8918e47c566 3201 )
mkilivan 5:c8918e47c566 3202 {
mkilivan 5:c8918e47c566 3203 FRESULT res;
mkilivan 5:c8918e47c566 3204 DWORD ncl;
mkilivan 5:c8918e47c566 3205
mkilivan 5:c8918e47c566 3206
mkilivan 5:c8918e47c566 3207 if (!fp) return FR_INVALID_OBJECT;
mkilivan 5:c8918e47c566 3208
mkilivan 5:c8918e47c566 3209 res = validate(fp); /* Check validity of the object */
mkilivan 5:c8918e47c566 3210 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3211 if (fp->flag & FA__ERROR) { /* Check abort flag */
mkilivan 5:c8918e47c566 3212 res = FR_INT_ERR;
mkilivan 5:c8918e47c566 3213 } else {
mkilivan 5:c8918e47c566 3214 if (!(fp->flag & FA_WRITE)) /* Check access mode */
mkilivan 5:c8918e47c566 3215 res = FR_DENIED;
mkilivan 5:c8918e47c566 3216 }
mkilivan 5:c8918e47c566 3217 }
mkilivan 5:c8918e47c566 3218 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3219 if (fp->fsize > fp->fptr) {
mkilivan 5:c8918e47c566 3220 fp->fsize = fp->fptr; /* Set file size to current R/W point */
mkilivan 5:c8918e47c566 3221 fp->flag |= FA__WRITTEN;
mkilivan 5:c8918e47c566 3222 if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
mkilivan 5:c8918e47c566 3223 res = remove_chain(fp->fs, fp->sclust);
mkilivan 5:c8918e47c566 3224 fp->sclust = 0;
mkilivan 5:c8918e47c566 3225 } else { /* When truncate a part of the file, remove remaining clusters */
mkilivan 5:c8918e47c566 3226 ncl = get_fat(fp->fs, fp->clust);
mkilivan 5:c8918e47c566 3227 res = FR_OK;
mkilivan 5:c8918e47c566 3228 if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
mkilivan 5:c8918e47c566 3229 if (ncl == 1) res = FR_INT_ERR;
mkilivan 5:c8918e47c566 3230 if (res == FR_OK && ncl < fp->fs->n_fatent) {
mkilivan 5:c8918e47c566 3231 res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
mkilivan 5:c8918e47c566 3232 if (res == FR_OK) res = remove_chain(fp->fs, ncl);
mkilivan 5:c8918e47c566 3233 }
mkilivan 5:c8918e47c566 3234 }
mkilivan 5:c8918e47c566 3235 }
mkilivan 5:c8918e47c566 3236 if (res != FR_OK) fp->flag |= FA__ERROR;
mkilivan 5:c8918e47c566 3237 }
mkilivan 5:c8918e47c566 3238
mkilivan 5:c8918e47c566 3239 LEAVE_FF(fp->fs, res);
mkilivan 5:c8918e47c566 3240 }
mkilivan 5:c8918e47c566 3241
mkilivan 5:c8918e47c566 3242
mkilivan 5:c8918e47c566 3243
mkilivan 5:c8918e47c566 3244
mkilivan 5:c8918e47c566 3245 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3246 /* Delete a File or Directory */
mkilivan 5:c8918e47c566 3247 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3248
mkilivan 5:c8918e47c566 3249 FRESULT f_unlink (
mkilivan 5:c8918e47c566 3250 const TCHAR *path /* Pointer to the file or directory path */
mkilivan 5:c8918e47c566 3251 )
mkilivan 5:c8918e47c566 3252 {
mkilivan 5:c8918e47c566 3253 FRESULT res;
mkilivan 5:c8918e47c566 3254 FATFS_DIR dj, sdj;
mkilivan 5:c8918e47c566 3255 BYTE *dir;
mkilivan 5:c8918e47c566 3256 DWORD dclst;
mkilivan 5:c8918e47c566 3257 DEF_NAMEBUF;
mkilivan 5:c8918e47c566 3258
mkilivan 5:c8918e47c566 3259
mkilivan 5:c8918e47c566 3260 res = chk_mounted(&path, &dj.fs, 1);
mkilivan 5:c8918e47c566 3261 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3262 INIT_BUF(dj);
mkilivan 5:c8918e47c566 3263 res = follow_path(&dj, path); /* Follow the file path */
mkilivan 5:c8918e47c566 3264 if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
mkilivan 5:c8918e47c566 3265 res = FR_INVALID_NAME; /* Cannot remove dot entry */
mkilivan 5:c8918e47c566 3266 #if _FS_LOCK
mkilivan 5:c8918e47c566 3267 if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open file */
mkilivan 5:c8918e47c566 3268 #endif
mkilivan 5:c8918e47c566 3269 if (res == FR_OK) { /* The object is accessible */
mkilivan 5:c8918e47c566 3270 dir = dj.dir;
mkilivan 5:c8918e47c566 3271 if (!dir) {
mkilivan 5:c8918e47c566 3272 res = FR_INVALID_NAME; /* Cannot remove the start directory */
mkilivan 5:c8918e47c566 3273 } else {
mkilivan 5:c8918e47c566 3274 if (dir[DIR_Attr] & AM_RDO)
mkilivan 5:c8918e47c566 3275 res = FR_DENIED; /* Cannot remove R/O object */
mkilivan 5:c8918e47c566 3276 }
mkilivan 5:c8918e47c566 3277 dclst = ld_clust(dj.fs, dir);
mkilivan 5:c8918e47c566 3278 if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-dir? */
mkilivan 5:c8918e47c566 3279 if (dclst < 2) {
mkilivan 5:c8918e47c566 3280 res = FR_INT_ERR;
mkilivan 5:c8918e47c566 3281 } else {
mkilivan 5:c8918e47c566 3282 mem_cpy(&sdj, &dj, sizeof (FATFS_DIR)); /* Check if the sub-dir is empty or not */
mkilivan 5:c8918e47c566 3283 sdj.sclust = dclst;
mkilivan 5:c8918e47c566 3284 res = dir_sdi(&sdj, 2); /* Exclude dot entries */
mkilivan 5:c8918e47c566 3285 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3286 res = dir_read(&sdj);
mkilivan 5:c8918e47c566 3287 if (res == FR_OK /* Not empty dir */
mkilivan 5:c8918e47c566 3288 #if _FS_RPATH
mkilivan 5:c8918e47c566 3289 || dclst == dj.fs->cdir /* Current dir */
mkilivan 5:c8918e47c566 3290 #endif
mkilivan 5:c8918e47c566 3291 ) res = FR_DENIED;
mkilivan 5:c8918e47c566 3292 if (res == FR_NO_FILE) res = FR_OK; /* Empty */
mkilivan 5:c8918e47c566 3293 }
mkilivan 5:c8918e47c566 3294 }
mkilivan 5:c8918e47c566 3295 }
mkilivan 5:c8918e47c566 3296 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3297 res = dir_remove(&dj); /* Remove the directory entry */
mkilivan 5:c8918e47c566 3298 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3299 if (dclst) /* Remove the cluster chain if exist */
mkilivan 5:c8918e47c566 3300 res = remove_chain(dj.fs, dclst);
mkilivan 5:c8918e47c566 3301 if (res == FR_OK) res = sync(dj.fs);
mkilivan 5:c8918e47c566 3302 }
mkilivan 5:c8918e47c566 3303 }
mkilivan 5:c8918e47c566 3304 }
mkilivan 5:c8918e47c566 3305 FREE_BUF();
mkilivan 5:c8918e47c566 3306 }
mkilivan 5:c8918e47c566 3307 LEAVE_FF(dj.fs, res);
mkilivan 5:c8918e47c566 3308 }
mkilivan 5:c8918e47c566 3309
mkilivan 5:c8918e47c566 3310
mkilivan 5:c8918e47c566 3311
mkilivan 5:c8918e47c566 3312
mkilivan 5:c8918e47c566 3313 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3314 /* Create a Directory */
mkilivan 5:c8918e47c566 3315 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3316
mkilivan 5:c8918e47c566 3317 FRESULT f_mkdir (
mkilivan 5:c8918e47c566 3318 const TCHAR *path /* Pointer to the directory path */
mkilivan 5:c8918e47c566 3319 )
mkilivan 5:c8918e47c566 3320 {
mkilivan 5:c8918e47c566 3321 FRESULT res;
mkilivan 5:c8918e47c566 3322 FATFS_DIR dj;
mkilivan 5:c8918e47c566 3323 BYTE *dir, n;
mkilivan 5:c8918e47c566 3324 DWORD dsc, dcl, pcl, tim = get_fattime();
mkilivan 5:c8918e47c566 3325 DEF_NAMEBUF;
mkilivan 5:c8918e47c566 3326
mkilivan 5:c8918e47c566 3327
mkilivan 5:c8918e47c566 3328 res = chk_mounted(&path, &dj.fs, 1);
mkilivan 5:c8918e47c566 3329 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3330 INIT_BUF(dj);
mkilivan 5:c8918e47c566 3331 res = follow_path(&dj, path); /* Follow the file path */
mkilivan 5:c8918e47c566 3332 if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
mkilivan 5:c8918e47c566 3333 if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
mkilivan 5:c8918e47c566 3334 res = FR_INVALID_NAME;
mkilivan 5:c8918e47c566 3335 if (res == FR_NO_FILE) { /* Can create a new directory */
mkilivan 5:c8918e47c566 3336 dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
mkilivan 5:c8918e47c566 3337 res = FR_OK;
mkilivan 5:c8918e47c566 3338 if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
mkilivan 5:c8918e47c566 3339 if (dcl == 1) res = FR_INT_ERR;
mkilivan 5:c8918e47c566 3340 if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
mkilivan 5:c8918e47c566 3341 if (res == FR_OK) /* Flush FAT */
mkilivan 5:c8918e47c566 3342 res = move_window(dj.fs, 0);
mkilivan 5:c8918e47c566 3343 if (res == FR_OK) { /* Initialize the new directory table */
mkilivan 5:c8918e47c566 3344 dsc = clust2sect(dj.fs, dcl);
mkilivan 5:c8918e47c566 3345 dir = dj.fs->win;
mkilivan 5:c8918e47c566 3346 mem_set(dir, 0, SS(dj.fs));
mkilivan 5:c8918e47c566 3347 mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */
mkilivan 5:c8918e47c566 3348 dir[DIR_Name] = '.';
mkilivan 5:c8918e47c566 3349 dir[DIR_Attr] = AM_DIR;
mkilivan 5:c8918e47c566 3350 ST_DWORD(dir+DIR_WrtTime, tim);
mkilivan 5:c8918e47c566 3351 st_clust(dir, dcl);
mkilivan 5:c8918e47c566 3352 mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
mkilivan 5:c8918e47c566 3353 dir[33] = '.'; pcl = dj.sclust;
mkilivan 5:c8918e47c566 3354 if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
mkilivan 5:c8918e47c566 3355 pcl = 0;
mkilivan 5:c8918e47c566 3356 st_clust(dir+SZ_DIR, pcl);
mkilivan 5:c8918e47c566 3357 for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
mkilivan 5:c8918e47c566 3358 dj.fs->winsect = dsc++;
mkilivan 5:c8918e47c566 3359 dj.fs->wflag = 1;
mkilivan 5:c8918e47c566 3360 res = move_window(dj.fs, 0);
mkilivan 5:c8918e47c566 3361 if (res != FR_OK) break;
mkilivan 5:c8918e47c566 3362 mem_set(dir, 0, SS(dj.fs));
mkilivan 5:c8918e47c566 3363 }
mkilivan 5:c8918e47c566 3364 }
mkilivan 5:c8918e47c566 3365 if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
mkilivan 5:c8918e47c566 3366 if (res != FR_OK) {
mkilivan 5:c8918e47c566 3367 remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
mkilivan 5:c8918e47c566 3368 } else {
mkilivan 5:c8918e47c566 3369 dir = dj.dir;
mkilivan 5:c8918e47c566 3370 dir[DIR_Attr] = AM_DIR; /* Attribute */
mkilivan 5:c8918e47c566 3371 ST_DWORD(dir+DIR_WrtTime, tim); /* Created time */
mkilivan 5:c8918e47c566 3372 st_clust(dir, dcl); /* Table start cluster */
mkilivan 5:c8918e47c566 3373 dj.fs->wflag = 1;
mkilivan 5:c8918e47c566 3374 res = sync(dj.fs);
mkilivan 5:c8918e47c566 3375 }
mkilivan 5:c8918e47c566 3376 }
mkilivan 5:c8918e47c566 3377 FREE_BUF();
mkilivan 5:c8918e47c566 3378 }
mkilivan 5:c8918e47c566 3379
mkilivan 5:c8918e47c566 3380 LEAVE_FF(dj.fs, res);
mkilivan 5:c8918e47c566 3381 }
mkilivan 5:c8918e47c566 3382
mkilivan 5:c8918e47c566 3383
mkilivan 5:c8918e47c566 3384
mkilivan 5:c8918e47c566 3385
mkilivan 5:c8918e47c566 3386 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3387 /* Change Attribute */
mkilivan 5:c8918e47c566 3388 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3389
mkilivan 5:c8918e47c566 3390 FRESULT f_chmod (
mkilivan 5:c8918e47c566 3391 const TCHAR *path, /* Pointer to the file path */
mkilivan 5:c8918e47c566 3392 BYTE value, /* Attribute bits */
mkilivan 5:c8918e47c566 3393 BYTE mask /* Attribute mask to change */
mkilivan 5:c8918e47c566 3394 )
mkilivan 5:c8918e47c566 3395 {
mkilivan 5:c8918e47c566 3396 FRESULT res;
mkilivan 5:c8918e47c566 3397 FATFS_DIR dj;
mkilivan 5:c8918e47c566 3398 BYTE *dir;
mkilivan 5:c8918e47c566 3399 DEF_NAMEBUF;
mkilivan 5:c8918e47c566 3400
mkilivan 5:c8918e47c566 3401
mkilivan 5:c8918e47c566 3402 res = chk_mounted(&path, &dj.fs, 1);
mkilivan 5:c8918e47c566 3403 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3404 INIT_BUF(dj);
mkilivan 5:c8918e47c566 3405 res = follow_path(&dj, path); /* Follow the file path */
mkilivan 5:c8918e47c566 3406 FREE_BUF();
mkilivan 5:c8918e47c566 3407 if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
mkilivan 5:c8918e47c566 3408 res = FR_INVALID_NAME;
mkilivan 5:c8918e47c566 3409 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3410 dir = dj.dir;
mkilivan 5:c8918e47c566 3411 if (!dir) { /* Is it a root directory? */
mkilivan 5:c8918e47c566 3412 res = FR_INVALID_NAME;
mkilivan 5:c8918e47c566 3413 } else { /* File or sub directory */
mkilivan 5:c8918e47c566 3414 mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */
mkilivan 5:c8918e47c566 3415 dir[DIR_Attr] = (value & mask) | (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
mkilivan 5:c8918e47c566 3416 dj.fs->wflag = 1;
mkilivan 5:c8918e47c566 3417 res = sync(dj.fs);
mkilivan 5:c8918e47c566 3418 }
mkilivan 5:c8918e47c566 3419 }
mkilivan 5:c8918e47c566 3420 }
mkilivan 5:c8918e47c566 3421
mkilivan 5:c8918e47c566 3422 LEAVE_FF(dj.fs, res);
mkilivan 5:c8918e47c566 3423 }
mkilivan 5:c8918e47c566 3424
mkilivan 5:c8918e47c566 3425
mkilivan 5:c8918e47c566 3426
mkilivan 5:c8918e47c566 3427
mkilivan 5:c8918e47c566 3428 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3429 /* Change Timestamp */
mkilivan 5:c8918e47c566 3430 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3431
mkilivan 5:c8918e47c566 3432 FRESULT f_utime (
mkilivan 5:c8918e47c566 3433 const TCHAR *path, /* Pointer to the file/directory name */
mkilivan 5:c8918e47c566 3434 const FILINFO *fno /* Pointer to the time stamp to be set */
mkilivan 5:c8918e47c566 3435 )
mkilivan 5:c8918e47c566 3436 {
mkilivan 5:c8918e47c566 3437 FRESULT res;
mkilivan 5:c8918e47c566 3438 FATFS_DIR dj;
mkilivan 5:c8918e47c566 3439 BYTE *dir;
mkilivan 5:c8918e47c566 3440 DEF_NAMEBUF;
mkilivan 5:c8918e47c566 3441
mkilivan 5:c8918e47c566 3442
mkilivan 5:c8918e47c566 3443 res = chk_mounted(&path, &dj.fs, 1);
mkilivan 5:c8918e47c566 3444 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3445 INIT_BUF(dj);
mkilivan 5:c8918e47c566 3446 res = follow_path(&dj, path); /* Follow the file path */
mkilivan 5:c8918e47c566 3447 FREE_BUF();
mkilivan 5:c8918e47c566 3448 if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
mkilivan 5:c8918e47c566 3449 res = FR_INVALID_NAME;
mkilivan 5:c8918e47c566 3450 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3451 dir = dj.dir;
mkilivan 5:c8918e47c566 3452 if (!dir) { /* Root directory */
mkilivan 5:c8918e47c566 3453 res = FR_INVALID_NAME;
mkilivan 5:c8918e47c566 3454 } else { /* File or sub-directory */
mkilivan 5:c8918e47c566 3455 ST_WORD(dir+DIR_WrtTime, fno->ftime);
mkilivan 5:c8918e47c566 3456 ST_WORD(dir+DIR_WrtDate, fno->fdate);
mkilivan 5:c8918e47c566 3457 dj.fs->wflag = 1;
mkilivan 5:c8918e47c566 3458 res = sync(dj.fs);
mkilivan 5:c8918e47c566 3459 }
mkilivan 5:c8918e47c566 3460 }
mkilivan 5:c8918e47c566 3461 }
mkilivan 5:c8918e47c566 3462
mkilivan 5:c8918e47c566 3463 LEAVE_FF(dj.fs, res);
mkilivan 5:c8918e47c566 3464 }
mkilivan 5:c8918e47c566 3465
mkilivan 5:c8918e47c566 3466
mkilivan 5:c8918e47c566 3467
mkilivan 5:c8918e47c566 3468
mkilivan 5:c8918e47c566 3469 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3470 /* Rename File/Directory */
mkilivan 5:c8918e47c566 3471 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3472
mkilivan 5:c8918e47c566 3473 FRESULT f_rename (
mkilivan 5:c8918e47c566 3474 const TCHAR *path_old, /* Pointer to the old name */
mkilivan 5:c8918e47c566 3475 const TCHAR *path_new /* Pointer to the new name */
mkilivan 5:c8918e47c566 3476 )
mkilivan 5:c8918e47c566 3477 {
mkilivan 5:c8918e47c566 3478 FRESULT res;
mkilivan 5:c8918e47c566 3479 FATFS_DIR djo, djn;
mkilivan 5:c8918e47c566 3480 BYTE buf[21], *dir;
mkilivan 5:c8918e47c566 3481 DWORD dw;
mkilivan 5:c8918e47c566 3482 DEF_NAMEBUF;
mkilivan 5:c8918e47c566 3483
mkilivan 5:c8918e47c566 3484
mkilivan 5:c8918e47c566 3485 res = chk_mounted(&path_old, &djo.fs, 1);
mkilivan 5:c8918e47c566 3486 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3487 djn.fs = djo.fs;
mkilivan 5:c8918e47c566 3488 INIT_BUF(djo);
mkilivan 5:c8918e47c566 3489 res = follow_path(&djo, path_old); /* Check old object */
mkilivan 5:c8918e47c566 3490 if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
mkilivan 5:c8918e47c566 3491 res = FR_INVALID_NAME;
mkilivan 5:c8918e47c566 3492 #if _FS_LOCK
mkilivan 5:c8918e47c566 3493 if (res == FR_OK) res = chk_lock(&djo, 2);
mkilivan 5:c8918e47c566 3494 #endif
mkilivan 5:c8918e47c566 3495 if (res == FR_OK) { /* Old object is found */
mkilivan 5:c8918e47c566 3496 if (!djo.dir) { /* Is root dir? */
mkilivan 5:c8918e47c566 3497 res = FR_NO_FILE;
mkilivan 5:c8918e47c566 3498 } else {
mkilivan 5:c8918e47c566 3499 mem_cpy(buf, djo.dir+DIR_Attr, 21); /* Save the object information except for name */
mkilivan 5:c8918e47c566 3500 mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Check new object */
mkilivan 5:c8918e47c566 3501 res = follow_path(&djn, path_new);
mkilivan 5:c8918e47c566 3502 if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
mkilivan 5:c8918e47c566 3503 if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
mkilivan 5:c8918e47c566 3504 /* Start critical section that an interruption or error can cause cross-link */
mkilivan 5:c8918e47c566 3505 res = dir_register(&djn); /* Register the new entry */
mkilivan 5:c8918e47c566 3506 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3507 dir = djn.dir; /* Copy object information except for name */
mkilivan 5:c8918e47c566 3508 mem_cpy(dir+13, buf+2, 19);
mkilivan 5:c8918e47c566 3509 dir[DIR_Attr] = buf[0] | AM_ARC;
mkilivan 5:c8918e47c566 3510 djo.fs->wflag = 1;
mkilivan 5:c8918e47c566 3511 if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) { /* Update .. entry in the directory if needed */
mkilivan 5:c8918e47c566 3512 dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
mkilivan 5:c8918e47c566 3513 if (!dw) {
mkilivan 5:c8918e47c566 3514 res = FR_INT_ERR;
mkilivan 5:c8918e47c566 3515 } else {
mkilivan 5:c8918e47c566 3516 res = move_window(djo.fs, dw);
mkilivan 5:c8918e47c566 3517 dir = djo.fs->win+SZ_DIR; /* .. entry */
mkilivan 5:c8918e47c566 3518 if (res == FR_OK && dir[1] == '.') {
mkilivan 5:c8918e47c566 3519 dw = (djo.fs->fs_type == FS_FAT32 && djn.sclust == djo.fs->dirbase) ? 0 : djn.sclust;
mkilivan 5:c8918e47c566 3520 st_clust(dir, dw);
mkilivan 5:c8918e47c566 3521 djo.fs->wflag = 1;
mkilivan 5:c8918e47c566 3522 }
mkilivan 5:c8918e47c566 3523 }
mkilivan 5:c8918e47c566 3524 }
mkilivan 5:c8918e47c566 3525 if (res == FR_OK) {
mkilivan 5:c8918e47c566 3526 res = dir_remove(&djo); /* Remove old entry */
mkilivan 5:c8918e47c566 3527 if (res == FR_OK)
mkilivan 5:c8918e47c566 3528 res = sync(djo.fs);
mkilivan 5:c8918e47c566 3529 }
mkilivan 5:c8918e47c566 3530 }
mkilivan 5:c8918e47c566 3531 /* End critical section */
mkilivan 5:c8918e47c566 3532 }
mkilivan 5:c8918e47c566 3533 }
mkilivan 5:c8918e47c566 3534 }
mkilivan 5:c8918e47c566 3535 FREE_BUF();
mkilivan 5:c8918e47c566 3536 }
mkilivan 5:c8918e47c566 3537 LEAVE_FF(djo.fs, res);
mkilivan 5:c8918e47c566 3538 }
mkilivan 5:c8918e47c566 3539
mkilivan 5:c8918e47c566 3540 #endif /* !_FS_READONLY */
mkilivan 5:c8918e47c566 3541 #endif /* _FS_MINIMIZE == 0 */
mkilivan 5:c8918e47c566 3542 #endif /* _FS_MINIMIZE <= 1 */
mkilivan 5:c8918e47c566 3543 #endif /* _FS_MINIMIZE <= 2 */
mkilivan 5:c8918e47c566 3544
mkilivan 5:c8918e47c566 3545
mkilivan 5:c8918e47c566 3546
mkilivan 5:c8918e47c566 3547 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3548 /* Forward data to the stream directly (available on only tiny cfg) */
mkilivan 5:c8918e47c566 3549 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3550 #if _USE_FORWARD && _FS_TINY
mkilivan 5:c8918e47c566 3551
mkilivan 5:c8918e47c566 3552 FRESULT f_forward (
mkilivan 5:c8918e47c566 3553 FIL *fp, /* Pointer to the file object */
mkilivan 5:c8918e47c566 3554 UINT (*func)(const BYTE*,UINT), /* Pointer to the streaming function */
mkilivan 5:c8918e47c566 3555 UINT btr, /* Number of bytes to forward */
mkilivan 5:c8918e47c566 3556 UINT *bf /* Pointer to number of bytes forwarded */
mkilivan 5:c8918e47c566 3557 )
mkilivan 5:c8918e47c566 3558 {
mkilivan 5:c8918e47c566 3559 FRESULT res;
mkilivan 5:c8918e47c566 3560 DWORD remain, clst, sect;
mkilivan 5:c8918e47c566 3561 UINT rcnt;
mkilivan 5:c8918e47c566 3562 BYTE csect;
mkilivan 5:c8918e47c566 3563
mkilivan 5:c8918e47c566 3564
mkilivan 5:c8918e47c566 3565 *bf = 0; /* Clear transfer byte counter */
mkilivan 5:c8918e47c566 3566
mkilivan 5:c8918e47c566 3567 if (!fp) return FR_INVALID_OBJECT;
mkilivan 5:c8918e47c566 3568
mkilivan 5:c8918e47c566 3569 res = validate(fp); /* Check validity of the object */
mkilivan 5:c8918e47c566 3570 if (res != FR_OK) LEAVE_FF(fp->fs, res);
mkilivan 5:c8918e47c566 3571 if (fp->flag & FA__ERROR) /* Check error flag */
mkilivan 5:c8918e47c566 3572 LEAVE_FF(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 3573 if (!(fp->flag & FA_READ)) /* Check access mode */
mkilivan 5:c8918e47c566 3574 LEAVE_FF(fp->fs, FR_DENIED);
mkilivan 5:c8918e47c566 3575
mkilivan 5:c8918e47c566 3576 remain = fp->fsize - fp->fptr;
mkilivan 5:c8918e47c566 3577 if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
mkilivan 5:c8918e47c566 3578
mkilivan 5:c8918e47c566 3579 for ( ; btr && (*func)(0, 0); /* Repeat until all data transferred or stream becomes busy */
mkilivan 5:c8918e47c566 3580 fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
mkilivan 5:c8918e47c566 3581 csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mkilivan 5:c8918e47c566 3582 if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mkilivan 5:c8918e47c566 3583 if (!csect) { /* On the cluster boundary? */
mkilivan 5:c8918e47c566 3584 clst = (fp->fptr == 0) ? /* On the top of the file? */
mkilivan 5:c8918e47c566 3585 fp->sclust : get_fat(fp->fs, fp->clust);
mkilivan 5:c8918e47c566 3586 if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 3587 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 3588 fp->clust = clst; /* Update current cluster */
mkilivan 5:c8918e47c566 3589 }
mkilivan 5:c8918e47c566 3590 }
mkilivan 5:c8918e47c566 3591 sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
mkilivan 5:c8918e47c566 3592 if (!sect) ABORT(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 3593 sect += csect;
mkilivan 5:c8918e47c566 3594 if (move_window(fp->fs, sect)) /* Move sector window */
mkilivan 5:c8918e47c566 3595 ABORT(fp->fs, FR_DISK_ERR);
mkilivan 5:c8918e47c566 3596 fp->dsect = sect;
mkilivan 5:c8918e47c566 3597 rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
mkilivan 5:c8918e47c566 3598 if (rcnt > btr) rcnt = btr;
mkilivan 5:c8918e47c566 3599 rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
mkilivan 5:c8918e47c566 3600 if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
mkilivan 5:c8918e47c566 3601 }
mkilivan 5:c8918e47c566 3602
mkilivan 5:c8918e47c566 3603 LEAVE_FF(fp->fs, FR_OK);
mkilivan 5:c8918e47c566 3604 }
mkilivan 5:c8918e47c566 3605 #endif /* _USE_FORWARD */
mkilivan 5:c8918e47c566 3606
mkilivan 5:c8918e47c566 3607
mkilivan 5:c8918e47c566 3608
mkilivan 5:c8918e47c566 3609 #if _USE_MKFS && !_FS_READONLY
mkilivan 5:c8918e47c566 3610 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3611 /* Create File System on the Drive */
mkilivan 5:c8918e47c566 3612 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3613 #define N_ROOTDIR 512 /* Number of root dir entries for FAT12/16 */
mkilivan 5:c8918e47c566 3614 #define N_FATS 1 /* Number of FAT copies (1 or 2) */
mkilivan 5:c8918e47c566 3615
mkilivan 5:c8918e47c566 3616
mkilivan 5:c8918e47c566 3617 FRESULT f_mkfs (
mkilivan 5:c8918e47c566 3618 BYTE drv, /* Logical drive number */
mkilivan 5:c8918e47c566 3619 BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
mkilivan 5:c8918e47c566 3620 UINT au /* Allocation unit size [bytes] */
mkilivan 5:c8918e47c566 3621 )
mkilivan 5:c8918e47c566 3622 {
mkilivan 5:c8918e47c566 3623 static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
mkilivan 5:c8918e47c566 3624 static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
mkilivan 5:c8918e47c566 3625 BYTE fmt, md, sys, *tbl, pdrv, part;
mkilivan 5:c8918e47c566 3626 DWORD n_clst, vs, n, wsect;
mkilivan 5:c8918e47c566 3627 UINT i;
mkilivan 5:c8918e47c566 3628 DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
mkilivan 5:c8918e47c566 3629 DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
mkilivan 5:c8918e47c566 3630 FATFS *fs;
mkilivan 5:c8918e47c566 3631 DSTATUS stat;
mkilivan 5:c8918e47c566 3632
mkilivan 5:c8918e47c566 3633
mkilivan 5:c8918e47c566 3634 /* Check mounted drive and clear work area */
mkilivan 5:c8918e47c566 3635 if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
mkilivan 5:c8918e47c566 3636 if (sfd > 1) return FR_INVALID_PARAMETER;
mkilivan 5:c8918e47c566 3637 if (au & (au - 1)) return FR_INVALID_PARAMETER;
mkilivan 5:c8918e47c566 3638 fs = FatFs[drv];
mkilivan 5:c8918e47c566 3639 if (!fs) return FR_NOT_ENABLED;
mkilivan 5:c8918e47c566 3640 fs->fs_type = 0;
mkilivan 5:c8918e47c566 3641 pdrv = LD2PD(drv); /* Physical drive */
mkilivan 5:c8918e47c566 3642 part = LD2PT(drv); /* Partition (0:auto detect, 1-4:get from partition table)*/
mkilivan 5:c8918e47c566 3643
mkilivan 5:c8918e47c566 3644 /* Get disk statics */
mkilivan 5:c8918e47c566 3645 stat = disk_initialize(pdrv);
mkilivan 5:c8918e47c566 3646 if (stat & STA_NOINIT) return FR_NOT_READY;
mkilivan 5:c8918e47c566 3647 if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mkilivan 5:c8918e47c566 3648 #if _MAX_SS != 512 /* Get disk sector size */
mkilivan 5:c8918e47c566 3649 if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK || SS(fs) > _MAX_SS)
mkilivan 5:c8918e47c566 3650 return FR_DISK_ERR;
mkilivan 5:c8918e47c566 3651 #endif
mkilivan 5:c8918e47c566 3652 if (_MULTI_PARTITION && part) {
mkilivan 5:c8918e47c566 3653 /* Get partition information from partition table in the MBR */
mkilivan 5:c8918e47c566 3654 if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
mkilivan 5:c8918e47c566 3655 if (LD_WORD(fs->win+BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
mkilivan 5:c8918e47c566 3656 tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mkilivan 5:c8918e47c566 3657 if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
mkilivan 5:c8918e47c566 3658 b_vol = LD_DWORD(tbl+8); /* Volume start sector */
mkilivan 5:c8918e47c566 3659 n_vol = LD_DWORD(tbl+12); /* Volume size */
mkilivan 5:c8918e47c566 3660 } else {
mkilivan 5:c8918e47c566 3661 /* Create a partition in this function */
mkilivan 5:c8918e47c566 3662 if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK || n_vol < 128)
mkilivan 5:c8918e47c566 3663 return FR_DISK_ERR;
mkilivan 5:c8918e47c566 3664 b_vol = (sfd) ? 0 : 63; /* Volume start sector */
mkilivan 5:c8918e47c566 3665 n_vol -= b_vol; /* Volume size */
mkilivan 5:c8918e47c566 3666 }
mkilivan 5:c8918e47c566 3667
mkilivan 5:c8918e47c566 3668 if (!au) { /* AU auto selection */
mkilivan 5:c8918e47c566 3669 vs = n_vol / (2000 / (SS(fs) / 512));
mkilivan 5:c8918e47c566 3670 for (i = 0; vs < vst[i]; i++) ;
mkilivan 5:c8918e47c566 3671 au = cst[i];
mkilivan 5:c8918e47c566 3672 }
mkilivan 5:c8918e47c566 3673 au /= SS(fs); /* Number of sectors per cluster */
mkilivan 5:c8918e47c566 3674 if (au == 0) au = 1;
mkilivan 5:c8918e47c566 3675 if (au > 128) au = 128;
mkilivan 5:c8918e47c566 3676
mkilivan 5:c8918e47c566 3677 /* Pre-compute number of clusters and FAT sub-type */
mkilivan 5:c8918e47c566 3678 n_clst = n_vol / au;
mkilivan 5:c8918e47c566 3679 fmt = FS_FAT12;
mkilivan 5:c8918e47c566 3680 if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
mkilivan 5:c8918e47c566 3681 if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
mkilivan 5:c8918e47c566 3682
mkilivan 5:c8918e47c566 3683 /* Determine offset and size of FAT structure */
mkilivan 5:c8918e47c566 3684 if (fmt == FS_FAT32) {
mkilivan 5:c8918e47c566 3685 n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
mkilivan 5:c8918e47c566 3686 n_rsv = 32;
mkilivan 5:c8918e47c566 3687 n_dir = 0;
mkilivan 5:c8918e47c566 3688 } else {
mkilivan 5:c8918e47c566 3689 n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
mkilivan 5:c8918e47c566 3690 n_fat = (n_fat + SS(fs) - 1) / SS(fs);
mkilivan 5:c8918e47c566 3691 n_rsv = 1;
mkilivan 5:c8918e47c566 3692 n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
mkilivan 5:c8918e47c566 3693 }
mkilivan 5:c8918e47c566 3694 b_fat = b_vol + n_rsv; /* FAT area start sector */
mkilivan 5:c8918e47c566 3695 b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
mkilivan 5:c8918e47c566 3696 b_data = b_dir + n_dir; /* Data area start sector */
mkilivan 5:c8918e47c566 3697 if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
mkilivan 5:c8918e47c566 3698
mkilivan 5:c8918e47c566 3699 /* Align data start sector to erase block boundary (for flash memory media) */
mkilivan 5:c8918e47c566 3700 if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK || !n || n > 32768) n = 1;
mkilivan 5:c8918e47c566 3701 n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
mkilivan 5:c8918e47c566 3702 n = (n - b_data) / N_FATS;
mkilivan 5:c8918e47c566 3703 if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
mkilivan 5:c8918e47c566 3704 n_rsv += n;
mkilivan 5:c8918e47c566 3705 b_fat += n;
mkilivan 5:c8918e47c566 3706 } else { /* FAT12/16: Expand FAT size */
mkilivan 5:c8918e47c566 3707 n_fat += n;
mkilivan 5:c8918e47c566 3708 }
mkilivan 5:c8918e47c566 3709
mkilivan 5:c8918e47c566 3710 /* Determine number of clusters and final check of validity of the FAT sub-type */
mkilivan 5:c8918e47c566 3711 n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
mkilivan 5:c8918e47c566 3712 if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
mkilivan 5:c8918e47c566 3713 || (fmt == FS_FAT32 && n_clst < MIN_FAT32))
mkilivan 5:c8918e47c566 3714 return FR_MKFS_ABORTED;
mkilivan 5:c8918e47c566 3715
mkilivan 5:c8918e47c566 3716 switch (fmt) { /* Determine system ID for partition table */
mkilivan 5:c8918e47c566 3717 case FS_FAT12: sys = 0x01; break;
mkilivan 5:c8918e47c566 3718 case FS_FAT16: sys = (n_vol < 0x10000) ? 0x04 : 0x06; break;
mkilivan 5:c8918e47c566 3719 default: sys = 0x0C;
mkilivan 5:c8918e47c566 3720 }
mkilivan 5:c8918e47c566 3721
mkilivan 5:c8918e47c566 3722 if (_MULTI_PARTITION && part) {
mkilivan 5:c8918e47c566 3723 /* Update system ID in the partition table */
mkilivan 5:c8918e47c566 3724 tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mkilivan 5:c8918e47c566 3725 tbl[4] = sys;
mkilivan 5:c8918e47c566 3726 if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
mkilivan 5:c8918e47c566 3727 md = 0xF8;
mkilivan 5:c8918e47c566 3728 } else {
mkilivan 5:c8918e47c566 3729 if (sfd) { /* No partition table (SFD) */
mkilivan 5:c8918e47c566 3730 md = 0xF0;
mkilivan 5:c8918e47c566 3731 } else { /* Create partition table (FDISK) */
mkilivan 5:c8918e47c566 3732 mem_set(fs->win, 0, SS(fs));
mkilivan 5:c8918e47c566 3733 tbl = fs->win+MBR_Table; /* Create partition table for single partition in the drive */
mkilivan 5:c8918e47c566 3734 tbl[1] = 1; /* Partition start head */
mkilivan 5:c8918e47c566 3735 tbl[2] = 1; /* Partition start sector */
mkilivan 5:c8918e47c566 3736 tbl[3] = 0; /* Partition start cylinder */
mkilivan 5:c8918e47c566 3737 tbl[4] = sys; /* System type */
mkilivan 5:c8918e47c566 3738 tbl[5] = 254; /* Partition end head */
mkilivan 5:c8918e47c566 3739 n = (b_vol + n_vol) / 63 / 255;
mkilivan 5:c8918e47c566 3740 tbl[6] = (BYTE)((n >> 2) | 63); /* Partition end sector */
mkilivan 5:c8918e47c566 3741 tbl[7] = (BYTE)n; /* End cylinder */
mkilivan 5:c8918e47c566 3742 ST_DWORD(tbl+8, 63); /* Partition start in LBA */
mkilivan 5:c8918e47c566 3743 ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
mkilivan 5:c8918e47c566 3744 ST_WORD(fs->win+BS_55AA, 0xAA55); /* MBR signature */
mkilivan 5:c8918e47c566 3745 if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR sector */
mkilivan 5:c8918e47c566 3746 return FR_DISK_ERR;
mkilivan 5:c8918e47c566 3747 md = 0xF8;
mkilivan 5:c8918e47c566 3748 }
mkilivan 5:c8918e47c566 3749 }
mkilivan 5:c8918e47c566 3750
mkilivan 5:c8918e47c566 3751 /* Create BPB in the VBR */
mkilivan 5:c8918e47c566 3752 tbl = fs->win; /* Clear sector */
mkilivan 5:c8918e47c566 3753 mem_set(tbl, 0, SS(fs));
mkilivan 5:c8918e47c566 3754 mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
mkilivan 5:c8918e47c566 3755 i = SS(fs); /* Sector size */
mkilivan 5:c8918e47c566 3756 ST_WORD(tbl+BPB_BytsPerSec, i);
mkilivan 5:c8918e47c566 3757 tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
mkilivan 5:c8918e47c566 3758 ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
mkilivan 5:c8918e47c566 3759 tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
mkilivan 5:c8918e47c566 3760 i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of rootdir entries */
mkilivan 5:c8918e47c566 3761 ST_WORD(tbl+BPB_RootEntCnt, i);
mkilivan 5:c8918e47c566 3762 if (n_vol < 0x10000) { /* Number of total sectors */
mkilivan 5:c8918e47c566 3763 ST_WORD(tbl+BPB_TotSec16, n_vol);
mkilivan 5:c8918e47c566 3764 } else {
mkilivan 5:c8918e47c566 3765 ST_DWORD(tbl+BPB_TotSec32, n_vol);
mkilivan 5:c8918e47c566 3766 }
mkilivan 5:c8918e47c566 3767 tbl[BPB_Media] = md; /* Media descriptor */
mkilivan 5:c8918e47c566 3768 ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
mkilivan 5:c8918e47c566 3769 ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
mkilivan 5:c8918e47c566 3770 ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
mkilivan 5:c8918e47c566 3771 n = get_fattime(); /* Use current time as VSN */
mkilivan 5:c8918e47c566 3772 if (fmt == FS_FAT32) {
mkilivan 5:c8918e47c566 3773 ST_DWORD(tbl+BS_VolID32, n); /* VSN */
mkilivan 5:c8918e47c566 3774 ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
mkilivan 5:c8918e47c566 3775 ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
mkilivan 5:c8918e47c566 3776 ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (VBR+1) */
mkilivan 5:c8918e47c566 3777 ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
mkilivan 5:c8918e47c566 3778 tbl[BS_DrvNum32] = 0x80; /* Drive number */
mkilivan 5:c8918e47c566 3779 tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
mkilivan 5:c8918e47c566 3780 mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
mkilivan 5:c8918e47c566 3781 } else {
mkilivan 5:c8918e47c566 3782 ST_DWORD(tbl+BS_VolID, n); /* VSN */
mkilivan 5:c8918e47c566 3783 ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
mkilivan 5:c8918e47c566 3784 tbl[BS_DrvNum] = 0x80; /* Drive number */
mkilivan 5:c8918e47c566 3785 tbl[BS_BootSig] = 0x29; /* Extended boot signature */
mkilivan 5:c8918e47c566 3786 mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
mkilivan 5:c8918e47c566 3787 }
mkilivan 5:c8918e47c566 3788 ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
mkilivan 5:c8918e47c566 3789 if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
mkilivan 5:c8918e47c566 3790 return FR_DISK_ERR;
mkilivan 5:c8918e47c566 3791 if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR+6) */
mkilivan 5:c8918e47c566 3792 disk_write(pdrv, tbl, b_vol + 6, 1);
mkilivan 5:c8918e47c566 3793
mkilivan 5:c8918e47c566 3794 /* Initialize FAT area */
mkilivan 5:c8918e47c566 3795 wsect = b_fat;
mkilivan 5:c8918e47c566 3796 for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
mkilivan 5:c8918e47c566 3797 mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
mkilivan 5:c8918e47c566 3798 n = md; /* Media descriptor byte */
mkilivan 5:c8918e47c566 3799 if (fmt != FS_FAT32) {
mkilivan 5:c8918e47c566 3800 n |= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
mkilivan 5:c8918e47c566 3801 ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
mkilivan 5:c8918e47c566 3802 } else {
mkilivan 5:c8918e47c566 3803 n |= 0xFFFFFF00;
mkilivan 5:c8918e47c566 3804 ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
mkilivan 5:c8918e47c566 3805 ST_DWORD(tbl+4, 0xFFFFFFFF);
mkilivan 5:c8918e47c566 3806 ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
mkilivan 5:c8918e47c566 3807 }
mkilivan 5:c8918e47c566 3808 if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mkilivan 5:c8918e47c566 3809 return FR_DISK_ERR;
mkilivan 5:c8918e47c566 3810 mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
mkilivan 5:c8918e47c566 3811 for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
mkilivan 5:c8918e47c566 3812 if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mkilivan 5:c8918e47c566 3813 return FR_DISK_ERR;
mkilivan 5:c8918e47c566 3814 }
mkilivan 5:c8918e47c566 3815 }
mkilivan 5:c8918e47c566 3816
mkilivan 5:c8918e47c566 3817 /* Initialize root directory */
mkilivan 5:c8918e47c566 3818 i = (fmt == FS_FAT32) ? au : n_dir;
mkilivan 5:c8918e47c566 3819 do {
mkilivan 5:c8918e47c566 3820 if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mkilivan 5:c8918e47c566 3821 return FR_DISK_ERR;
mkilivan 5:c8918e47c566 3822 } while (--i);
mkilivan 5:c8918e47c566 3823
mkilivan 5:c8918e47c566 3824 #if _USE_ERASE /* Erase data area if needed */
mkilivan 5:c8918e47c566 3825 {
mkilivan 5:c8918e47c566 3826 DWORD eb[2];
mkilivan 5:c8918e47c566 3827
mkilivan 5:c8918e47c566 3828 eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
mkilivan 5:c8918e47c566 3829 disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
mkilivan 5:c8918e47c566 3830 }
mkilivan 5:c8918e47c566 3831 #endif
mkilivan 5:c8918e47c566 3832
mkilivan 5:c8918e47c566 3833 /* Create FSInfo if needed */
mkilivan 5:c8918e47c566 3834 if (fmt == FS_FAT32) {
mkilivan 5:c8918e47c566 3835 ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
mkilivan 5:c8918e47c566 3836 ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
mkilivan 5:c8918e47c566 3837 ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
mkilivan 5:c8918e47c566 3838 ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
mkilivan 5:c8918e47c566 3839 ST_WORD(tbl+BS_55AA, 0xAA55);
mkilivan 5:c8918e47c566 3840 disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
mkilivan 5:c8918e47c566 3841 disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
mkilivan 5:c8918e47c566 3842 }
mkilivan 5:c8918e47c566 3843
mkilivan 5:c8918e47c566 3844 return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
mkilivan 5:c8918e47c566 3845 }
mkilivan 5:c8918e47c566 3846
mkilivan 5:c8918e47c566 3847
mkilivan 5:c8918e47c566 3848 #if _MULTI_PARTITION == 2
mkilivan 5:c8918e47c566 3849 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3850 /* Divide Physical Drive */
mkilivan 5:c8918e47c566 3851 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3852
mkilivan 5:c8918e47c566 3853 FRESULT f_fdisk (
mkilivan 5:c8918e47c566 3854 BYTE pdrv, /* Physical drive number */
mkilivan 5:c8918e47c566 3855 const DWORD szt[], /* Pointer to the size table for each partitions */
mkilivan 5:c8918e47c566 3856 void* work /* Pointer to the working buffer */
mkilivan 5:c8918e47c566 3857 )
mkilivan 5:c8918e47c566 3858 {
mkilivan 5:c8918e47c566 3859 UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
mkilivan 5:c8918e47c566 3860 BYTE s_hd, e_hd, *p, *buf = (BYTE*)work;
mkilivan 5:c8918e47c566 3861 DSTATUS stat;
mkilivan 5:c8918e47c566 3862 DWORD sz_disk, sz_part, s_part;
mkilivan 5:c8918e47c566 3863
mkilivan 5:c8918e47c566 3864
mkilivan 5:c8918e47c566 3865 stat = disk_initialize(pdrv);
mkilivan 5:c8918e47c566 3866 if (stat & STA_NOINIT) return FR_NOT_READY;
mkilivan 5:c8918e47c566 3867 if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mkilivan 5:c8918e47c566 3868 if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
mkilivan 5:c8918e47c566 3869
mkilivan 5:c8918e47c566 3870 /* Determine CHS in the table regardless of the drive geometry */
mkilivan 5:c8918e47c566 3871 for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
mkilivan 5:c8918e47c566 3872 if (n == 256) n--;
mkilivan 5:c8918e47c566 3873 e_hd = n - 1;
mkilivan 5:c8918e47c566 3874 sz_cyl = 63 * n;
mkilivan 5:c8918e47c566 3875 tot_cyl = sz_disk / sz_cyl;
mkilivan 5:c8918e47c566 3876
mkilivan 5:c8918e47c566 3877 /* Create partition table */
mkilivan 5:c8918e47c566 3878 mem_set(buf, 0, _MAX_SS);
mkilivan 5:c8918e47c566 3879 p = buf + MBR_Table; b_cyl = 0;
mkilivan 5:c8918e47c566 3880 for (i = 0; i < 4; i++, p += SZ_PTE) {
mkilivan 5:c8918e47c566 3881 p_cyl = (szt[i] <= 100) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
mkilivan 5:c8918e47c566 3882 if (!p_cyl) continue;
mkilivan 5:c8918e47c566 3883 s_part = (DWORD)sz_cyl * b_cyl;
mkilivan 5:c8918e47c566 3884 sz_part = (DWORD)sz_cyl * p_cyl;
mkilivan 5:c8918e47c566 3885 if (i == 0) { /* Exclude first track of cylinder 0 */
mkilivan 5:c8918e47c566 3886 s_hd = 1;
mkilivan 5:c8918e47c566 3887 s_part += 63; sz_part -= 63;
mkilivan 5:c8918e47c566 3888 } else {
mkilivan 5:c8918e47c566 3889 s_hd = 0;
mkilivan 5:c8918e47c566 3890 }
mkilivan 5:c8918e47c566 3891 e_cyl = b_cyl + p_cyl - 1;
mkilivan 5:c8918e47c566 3892 if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
mkilivan 5:c8918e47c566 3893
mkilivan 5:c8918e47c566 3894 /* Set partition table */
mkilivan 5:c8918e47c566 3895 p[1] = s_hd; /* Start head */
mkilivan 5:c8918e47c566 3896 p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
mkilivan 5:c8918e47c566 3897 p[3] = (BYTE)b_cyl; /* Start cylinder */
mkilivan 5:c8918e47c566 3898 p[4] = 0x06; /* System type (temporary setting) */
mkilivan 5:c8918e47c566 3899 p[5] = e_hd; /* End head */
mkilivan 5:c8918e47c566 3900 p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
mkilivan 5:c8918e47c566 3901 p[7] = (BYTE)e_cyl; /* End cylinder */
mkilivan 5:c8918e47c566 3902 ST_DWORD(p + 8, s_part); /* Start sector in LBA */
mkilivan 5:c8918e47c566 3903 ST_DWORD(p + 12, sz_part); /* Partition size */
mkilivan 5:c8918e47c566 3904
mkilivan 5:c8918e47c566 3905 /* Next partition */
mkilivan 5:c8918e47c566 3906 b_cyl += p_cyl;
mkilivan 5:c8918e47c566 3907 }
mkilivan 5:c8918e47c566 3908 ST_WORD(p, 0xAA55);
mkilivan 5:c8918e47c566 3909
mkilivan 5:c8918e47c566 3910 /* Write it to the MBR */
mkilivan 5:c8918e47c566 3911 return (disk_write(pdrv, buf, 0, 1) || disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
mkilivan 5:c8918e47c566 3912 }
mkilivan 5:c8918e47c566 3913
mkilivan 5:c8918e47c566 3914
mkilivan 5:c8918e47c566 3915 #endif /* _MULTI_PARTITION == 2 */
mkilivan 5:c8918e47c566 3916 #endif /* _USE_MKFS && !_FS_READONLY */
mkilivan 5:c8918e47c566 3917
mkilivan 5:c8918e47c566 3918
mkilivan 5:c8918e47c566 3919
mkilivan 5:c8918e47c566 3920
mkilivan 5:c8918e47c566 3921 #if _USE_STRFUNC
mkilivan 5:c8918e47c566 3922 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3923 /* Get a string from the file */
mkilivan 5:c8918e47c566 3924 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3925 TCHAR* f_gets (
mkilivan 5:c8918e47c566 3926 TCHAR* buff, /* Pointer to the string buffer to read */
mkilivan 5:c8918e47c566 3927 int len, /* Size of string buffer (characters) */
mkilivan 5:c8918e47c566 3928 FIL* fil /* Pointer to the file object */
mkilivan 5:c8918e47c566 3929 )
mkilivan 5:c8918e47c566 3930 {
mkilivan 5:c8918e47c566 3931 int n = 0;
mkilivan 5:c8918e47c566 3932 TCHAR c, *p = buff;
mkilivan 5:c8918e47c566 3933 BYTE s[2];
mkilivan 5:c8918e47c566 3934 UINT rc;
mkilivan 5:c8918e47c566 3935
mkilivan 5:c8918e47c566 3936
mkilivan 5:c8918e47c566 3937 while (n < len - 1) { /* Read bytes until buffer gets filled */
mkilivan 5:c8918e47c566 3938 f_read(fil, s, 1, &rc);
mkilivan 5:c8918e47c566 3939 if (rc != 1) break; /* Break on EOF or error */
mkilivan 5:c8918e47c566 3940 c = s[0];
mkilivan 5:c8918e47c566 3941 #if _LFN_UNICODE /* Read a character in UTF-8 encoding */
mkilivan 5:c8918e47c566 3942 if (c >= 0x80) {
mkilivan 5:c8918e47c566 3943 if (c < 0xC0) continue; /* Skip stray trailer */
mkilivan 5:c8918e47c566 3944 if (c < 0xE0) { /* Two-byte sequence */
mkilivan 5:c8918e47c566 3945 f_read(fil, s, 1, &rc);
mkilivan 5:c8918e47c566 3946 if (rc != 1) break;
mkilivan 5:c8918e47c566 3947 c = ((c & 0x1F) << 6) | (s[0] & 0x3F);
mkilivan 5:c8918e47c566 3948 if (c < 0x80) c = '?';
mkilivan 5:c8918e47c566 3949 } else {
mkilivan 5:c8918e47c566 3950 if (c < 0xF0) { /* Three-byte sequence */
mkilivan 5:c8918e47c566 3951 f_read(fil, s, 2, &rc);
mkilivan 5:c8918e47c566 3952 if (rc != 2) break;
mkilivan 5:c8918e47c566 3953 c = (c << 12) | ((s[0] & 0x3F) << 6) | (s[1] & 0x3F);
mkilivan 5:c8918e47c566 3954 if (c < 0x800) c = '?';
mkilivan 5:c8918e47c566 3955 } else { /* Reject four-byte sequence */
mkilivan 5:c8918e47c566 3956 c = '?';
mkilivan 5:c8918e47c566 3957 }
mkilivan 5:c8918e47c566 3958 }
mkilivan 5:c8918e47c566 3959 }
mkilivan 5:c8918e47c566 3960 #endif
mkilivan 5:c8918e47c566 3961 #if _USE_STRFUNC >= 2
mkilivan 5:c8918e47c566 3962 if (c == '\r') continue; /* Strip '\r' */
mkilivan 5:c8918e47c566 3963 #endif
mkilivan 5:c8918e47c566 3964 *p++ = c;
mkilivan 5:c8918e47c566 3965 n++;
mkilivan 5:c8918e47c566 3966 if (c == '\n') break; /* Break on EOL */
mkilivan 5:c8918e47c566 3967 }
mkilivan 5:c8918e47c566 3968 *p = 0;
mkilivan 5:c8918e47c566 3969 return n ? buff : 0; /* When no data read (eof or error), return with error. */
mkilivan 5:c8918e47c566 3970 }
mkilivan 5:c8918e47c566 3971
mkilivan 5:c8918e47c566 3972
mkilivan 5:c8918e47c566 3973
mkilivan 5:c8918e47c566 3974 #if !_FS_READONLY
mkilivan 5:c8918e47c566 3975 #include <stdarg.h>
mkilivan 5:c8918e47c566 3976 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3977 /* Put a character to the file */
mkilivan 5:c8918e47c566 3978 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 3979 int f_putc (
mkilivan 5:c8918e47c566 3980 TCHAR c, /* A character to be output */
mkilivan 5:c8918e47c566 3981 FIL* fil /* Pointer to the file object */
mkilivan 5:c8918e47c566 3982 )
mkilivan 5:c8918e47c566 3983 {
mkilivan 5:c8918e47c566 3984 UINT bw, btw;
mkilivan 5:c8918e47c566 3985 BYTE s[3];
mkilivan 5:c8918e47c566 3986
mkilivan 5:c8918e47c566 3987
mkilivan 5:c8918e47c566 3988 #if _USE_STRFUNC >= 2
mkilivan 5:c8918e47c566 3989 if (c == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */
mkilivan 5:c8918e47c566 3990 #endif
mkilivan 5:c8918e47c566 3991
mkilivan 5:c8918e47c566 3992 #if _LFN_UNICODE /* Write the character in UTF-8 encoding */
mkilivan 5:c8918e47c566 3993 if (c < 0x80) { /* 7-bit */
mkilivan 5:c8918e47c566 3994 s[0] = (BYTE)c;
mkilivan 5:c8918e47c566 3995 btw = 1;
mkilivan 5:c8918e47c566 3996 } else {
mkilivan 5:c8918e47c566 3997 if (c < 0x800) { /* 11-bit */
mkilivan 5:c8918e47c566 3998 s[0] = (BYTE)(0xC0 | (c >> 6));
mkilivan 5:c8918e47c566 3999 s[1] = (BYTE)(0x80 | (c & 0x3F));
mkilivan 5:c8918e47c566 4000 btw = 2;
mkilivan 5:c8918e47c566 4001 } else { /* 16-bit */
mkilivan 5:c8918e47c566 4002 s[0] = (BYTE)(0xE0 | (c >> 12));
mkilivan 5:c8918e47c566 4003 s[1] = (BYTE)(0x80 | ((c >> 6) & 0x3F));
mkilivan 5:c8918e47c566 4004 s[2] = (BYTE)(0x80 | (c & 0x3F));
mkilivan 5:c8918e47c566 4005 btw = 3;
mkilivan 5:c8918e47c566 4006 }
mkilivan 5:c8918e47c566 4007 }
mkilivan 5:c8918e47c566 4008 #else /* Write the character without conversion */
mkilivan 5:c8918e47c566 4009 s[0] = (BYTE)c;
mkilivan 5:c8918e47c566 4010 btw = 1;
mkilivan 5:c8918e47c566 4011 #endif
mkilivan 5:c8918e47c566 4012 f_write(fil, s, btw, &bw); /* Write the char to the file */
mkilivan 5:c8918e47c566 4013 return (bw == btw) ? 1 : EOF; /* Return the result */
mkilivan 5:c8918e47c566 4014 }
mkilivan 5:c8918e47c566 4015
mkilivan 5:c8918e47c566 4016
mkilivan 5:c8918e47c566 4017
mkilivan 5:c8918e47c566 4018
mkilivan 5:c8918e47c566 4019 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 4020 /* Put a string to the file */
mkilivan 5:c8918e47c566 4021 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 4022 int f_puts (
mkilivan 5:c8918e47c566 4023 const TCHAR* str, /* Pointer to the string to be output */
mkilivan 5:c8918e47c566 4024 FIL* fil /* Pointer to the file object */
mkilivan 5:c8918e47c566 4025 )
mkilivan 5:c8918e47c566 4026 {
mkilivan 5:c8918e47c566 4027 int n;
mkilivan 5:c8918e47c566 4028
mkilivan 5:c8918e47c566 4029
mkilivan 5:c8918e47c566 4030 for (n = 0; *str; str++, n++) {
mkilivan 5:c8918e47c566 4031 if (f_putc(*str, fil) == EOF) return EOF;
mkilivan 5:c8918e47c566 4032 }
mkilivan 5:c8918e47c566 4033 return n;
mkilivan 5:c8918e47c566 4034 }
mkilivan 5:c8918e47c566 4035
mkilivan 5:c8918e47c566 4036
mkilivan 5:c8918e47c566 4037
mkilivan 5:c8918e47c566 4038
mkilivan 5:c8918e47c566 4039 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 4040 /* Put a formatted string to the file */
mkilivan 5:c8918e47c566 4041 /*-----------------------------------------------------------------------*/
mkilivan 5:c8918e47c566 4042 int f_printf (
mkilivan 5:c8918e47c566 4043 FIL* fil, /* Pointer to the file object */
mkilivan 5:c8918e47c566 4044 const TCHAR* str, /* Pointer to the format string */
mkilivan 5:c8918e47c566 4045 ... /* Optional arguments... */
mkilivan 5:c8918e47c566 4046 )
mkilivan 5:c8918e47c566 4047 {
mkilivan 5:c8918e47c566 4048 va_list arp;
mkilivan 5:c8918e47c566 4049 BYTE f, r;
mkilivan 5:c8918e47c566 4050 UINT i, j, w;
mkilivan 5:c8918e47c566 4051 ULONG v;
mkilivan 5:c8918e47c566 4052 TCHAR c, d, s[16], *p;
mkilivan 5:c8918e47c566 4053 int res, chc, cc;
mkilivan 5:c8918e47c566 4054
mkilivan 5:c8918e47c566 4055
mkilivan 5:c8918e47c566 4056 va_start(arp, str);
mkilivan 5:c8918e47c566 4057
mkilivan 5:c8918e47c566 4058 for (cc = res = 0; cc != EOF; res += cc) {
mkilivan 5:c8918e47c566 4059 c = *str++;
mkilivan 5:c8918e47c566 4060 if (c == 0) break; /* End of string */
mkilivan 5:c8918e47c566 4061 if (c != '%') { /* Non escape character */
mkilivan 5:c8918e47c566 4062 cc = f_putc(c, fil);
mkilivan 5:c8918e47c566 4063 if (cc != EOF) cc = 1;
mkilivan 5:c8918e47c566 4064 continue;
mkilivan 5:c8918e47c566 4065 }
mkilivan 5:c8918e47c566 4066 w = f = 0;
mkilivan 5:c8918e47c566 4067 c = *str++;
mkilivan 5:c8918e47c566 4068 if (c == '0') { /* Flag: '0' padding */
mkilivan 5:c8918e47c566 4069 f = 1; c = *str++;
mkilivan 5:c8918e47c566 4070 } else {
mkilivan 5:c8918e47c566 4071 if (c == '-') { /* Flag: left justified */
mkilivan 5:c8918e47c566 4072 f = 2; c = *str++;
mkilivan 5:c8918e47c566 4073 }
mkilivan 5:c8918e47c566 4074 }
mkilivan 5:c8918e47c566 4075 while (IsDigit(c)) { /* Precision */
mkilivan 5:c8918e47c566 4076 w = w * 10 + c - '0';
mkilivan 5:c8918e47c566 4077 c = *str++;
mkilivan 5:c8918e47c566 4078 }
mkilivan 5:c8918e47c566 4079 if (c == 'l' || c == 'L') { /* Prefix: Size is long int */
mkilivan 5:c8918e47c566 4080 f |= 4; c = *str++;
mkilivan 5:c8918e47c566 4081 }
mkilivan 5:c8918e47c566 4082 if (!c) break;
mkilivan 5:c8918e47c566 4083 d = c;
mkilivan 5:c8918e47c566 4084 if (IsLower(d)) d -= 0x20;
mkilivan 5:c8918e47c566 4085 switch (d) { /* Type is... */
mkilivan 5:c8918e47c566 4086 case 'S' : /* String */
mkilivan 5:c8918e47c566 4087 p = va_arg(arp, TCHAR*);
mkilivan 5:c8918e47c566 4088 for (j = 0; p[j]; j++) ;
mkilivan 5:c8918e47c566 4089 chc = 0;
mkilivan 5:c8918e47c566 4090 if (!(f & 2)) {
mkilivan 5:c8918e47c566 4091 while (j++ < w) chc += (cc = f_putc(' ', fil));
mkilivan 5:c8918e47c566 4092 }
mkilivan 5:c8918e47c566 4093 chc += (cc = f_puts(p, fil));
mkilivan 5:c8918e47c566 4094 while (j++ < w) chc += (cc = f_putc(' ', fil));
mkilivan 5:c8918e47c566 4095 if (cc != EOF) cc = chc;
mkilivan 5:c8918e47c566 4096 continue;
mkilivan 5:c8918e47c566 4097 case 'C' : /* Character */
mkilivan 5:c8918e47c566 4098 cc = f_putc((TCHAR)va_arg(arp, int), fil); continue;
mkilivan 5:c8918e47c566 4099 case 'B' : /* Binary */
mkilivan 5:c8918e47c566 4100 r = 2; break;
mkilivan 5:c8918e47c566 4101 case 'O' : /* Octal */
mkilivan 5:c8918e47c566 4102 r = 8; break;
mkilivan 5:c8918e47c566 4103 case 'D' : /* Signed decimal */
mkilivan 5:c8918e47c566 4104 case 'U' : /* Unsigned decimal */
mkilivan 5:c8918e47c566 4105 r = 10; break;
mkilivan 5:c8918e47c566 4106 case 'X' : /* Hexdecimal */
mkilivan 5:c8918e47c566 4107 r = 16; break;
mkilivan 5:c8918e47c566 4108 default: /* Unknown type (pass-through) */
mkilivan 5:c8918e47c566 4109 cc = f_putc(c, fil); continue;
mkilivan 5:c8918e47c566 4110 }
mkilivan 5:c8918e47c566 4111
mkilivan 5:c8918e47c566 4112 /* Get an argument and put it in numeral */
mkilivan 5:c8918e47c566 4113 v = (f & 4) ? (ULONG)va_arg(arp, long) : ((d == 'D') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int));
mkilivan 5:c8918e47c566 4114 if (d == 'D' && (v & 0x80000000)) {
mkilivan 5:c8918e47c566 4115 v = 0 - v;
mkilivan 5:c8918e47c566 4116 f |= 8;
mkilivan 5:c8918e47c566 4117 }
mkilivan 5:c8918e47c566 4118 i = 0;
mkilivan 5:c8918e47c566 4119 do {
mkilivan 5:c8918e47c566 4120 d = (TCHAR)(v % r); v /= r;
mkilivan 5:c8918e47c566 4121 if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
mkilivan 5:c8918e47c566 4122 s[i++] = d + '0';
mkilivan 5:c8918e47c566 4123 } while (v && i < sizeof s / sizeof s[0]);
mkilivan 5:c8918e47c566 4124 if (f & 8) s[i++] = '-';
mkilivan 5:c8918e47c566 4125 j = i; d = (f & 1) ? '0' : ' ';
mkilivan 5:c8918e47c566 4126 res = 0;
mkilivan 5:c8918e47c566 4127 while (!(f & 2) && j++ < w) res += (cc = f_putc(d, fil));
mkilivan 5:c8918e47c566 4128 do res += (cc = f_putc(s[--i], fil)); while(i);
mkilivan 5:c8918e47c566 4129 while (j++ < w) res += (cc = f_putc(' ', fil));
mkilivan 5:c8918e47c566 4130 if (cc != EOF) cc = res;
mkilivan 5:c8918e47c566 4131 }
mkilivan 5:c8918e47c566 4132
mkilivan 5:c8918e47c566 4133 va_end(arp);
mkilivan 5:c8918e47c566 4134 return (cc == EOF) ? cc : res;
mkilivan 5:c8918e47c566 4135 }
mkilivan 5:c8918e47c566 4136
mkilivan 5:c8918e47c566 4137 #endif /* !_FS_READONLY */
mkilivan 5:c8918e47c566 4138 #endif /* _USE_STRFUNC */