Dylan Saada / Mbed 2 deprecated telemetre2

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Dependencies:   mbed

USBHost/FATFileSystem/ChaN/ff.cpp@0:6ce9c65992e5, 2015-04-15 (annotated)

Committer:
dylancachan
Date:
Wed Apr 15 06:23:18 2015 +0000
Revision:
0:6ce9c65992e5
telemetre

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dylancachan 0:6ce9c65992e5 1 /*----------------------------------------------------------------------------/
dylancachan 0:6ce9c65992e5 2 / FatFs - FAT file system module R0.09a (C)ChaN, 2012
dylancachan 0:6ce9c65992e5 3 /-----------------------------------------------------------------------------/
dylancachan 0:6ce9c65992e5 4 / FatFs module is a generic FAT file system module for small embedded systems.
dylancachan 0:6ce9c65992e5 5 / This is a free software that opened for education, research and commercial
dylancachan 0:6ce9c65992e5 6 / developments under license policy of following terms.
dylancachan 0:6ce9c65992e5 7 /
dylancachan 0:6ce9c65992e5 8 / Copyright (C) 2012, ChaN, all right reserved.
dylancachan 0:6ce9c65992e5 9 /
dylancachan 0:6ce9c65992e5 10 / * The FatFs module is a free software and there is NO WARRANTY.
dylancachan 0:6ce9c65992e5 11 / * No restriction on use. You can use, modify and redistribute it for
dylancachan 0:6ce9c65992e5 12 / personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
dylancachan 0:6ce9c65992e5 13 / * Redistributions of source code must retain the above copyright notice.
dylancachan 0:6ce9c65992e5 14 /
dylancachan 0:6ce9c65992e5 15 /-----------------------------------------------------------------------------/
dylancachan 0:6ce9c65992e5 16 / Feb 26,'06 R0.00 Prototype.
dylancachan 0:6ce9c65992e5 17 /
dylancachan 0:6ce9c65992e5 18 / Apr 29,'06 R0.01 First stable version.
dylancachan 0:6ce9c65992e5 19 /
dylancachan 0:6ce9c65992e5 20 / Jun 01,'06 R0.02 Added FAT12 support.
dylancachan 0:6ce9c65992e5 21 / Removed unbuffered mode.
dylancachan 0:6ce9c65992e5 22 / Fixed a problem on small (<32M) partition.
dylancachan 0:6ce9c65992e5 23 / Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
dylancachan 0:6ce9c65992e5 24 /
dylancachan 0:6ce9c65992e5 25 / Sep 22,'06 R0.03 Added f_rename().
dylancachan 0:6ce9c65992e5 26 / Changed option _FS_MINIMUM to _FS_MINIMIZE.
dylancachan 0:6ce9c65992e5 27 / Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
dylancachan 0:6ce9c65992e5 28 / Fixed f_mkdir() creates incorrect directory on FAT32.
dylancachan 0:6ce9c65992e5 29 /
dylancachan 0:6ce9c65992e5 30 / Feb 04,'07 R0.04 Supported multiple drive system.
dylancachan 0:6ce9c65992e5 31 / Changed some interfaces for multiple drive system.
dylancachan 0:6ce9c65992e5 32 / Changed f_mountdrv() to f_mount().
dylancachan 0:6ce9c65992e5 33 / Added f_mkfs().
dylancachan 0:6ce9c65992e5 34 / Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
dylancachan 0:6ce9c65992e5 35 / Added a capability of extending file size to f_lseek().
dylancachan 0:6ce9c65992e5 36 / Added minimization level 3.
dylancachan 0:6ce9c65992e5 37 / Fixed an endian sensitive code in f_mkfs().
dylancachan 0:6ce9c65992e5 38 / May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
dylancachan 0:6ce9c65992e5 39 / Added FSInfo support.
dylancachan 0:6ce9c65992e5 40 / Fixed DBCS name can result FR_INVALID_NAME.
dylancachan 0:6ce9c65992e5 41 / Fixed short seek (<= csize) collapses the file object.
dylancachan 0:6ce9c65992e5 42 /
dylancachan 0:6ce9c65992e5 43 / Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
dylancachan 0:6ce9c65992e5 44 / Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
dylancachan 0:6ce9c65992e5 45 / Fixed f_mkdir() on FAT32 creates incorrect directory.
dylancachan 0:6ce9c65992e5 46 / Feb 03,'08 R0.05a Added f_truncate() and f_utime().
dylancachan 0:6ce9c65992e5 47 / Fixed off by one error at FAT sub-type determination.
dylancachan 0:6ce9c65992e5 48 / Fixed btr in f_read() can be mistruncated.
dylancachan 0:6ce9c65992e5 49 / Fixed cached sector is not flushed when create and close without write.
dylancachan 0:6ce9c65992e5 50 /
dylancachan 0:6ce9c65992e5 51 / Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
dylancachan 0:6ce9c65992e5 52 / Improved performance of f_lseek() on moving to the same or following cluster.
dylancachan 0:6ce9c65992e5 53 /
dylancachan 0:6ce9c65992e5 54 / Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
dylancachan 0:6ce9c65992e5 55 / Added long file name feature.
dylancachan 0:6ce9c65992e5 56 / Added multiple code page feature.
dylancachan 0:6ce9c65992e5 57 / Added re-entrancy for multitask operation.
dylancachan 0:6ce9c65992e5 58 / Added auto cluster size selection to f_mkfs().
dylancachan 0:6ce9c65992e5 59 / Added rewind option to f_readdir().
dylancachan 0:6ce9c65992e5 60 / Changed result code of critical errors.
dylancachan 0:6ce9c65992e5 61 / Renamed string functions to avoid name collision.
dylancachan 0:6ce9c65992e5 62 / Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
dylancachan 0:6ce9c65992e5 63 / Added multiple sector size feature.
dylancachan 0:6ce9c65992e5 64 / Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
dylancachan 0:6ce9c65992e5 65 / Fixed wrong cache control in f_lseek().
dylancachan 0:6ce9c65992e5 66 / Added relative path feature.
dylancachan 0:6ce9c65992e5 67 / Added f_chdir() and f_chdrive().
dylancachan 0:6ce9c65992e5 68 / Added proper case conversion to extended char.
dylancachan 0:6ce9c65992e5 69 / Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
dylancachan 0:6ce9c65992e5 70 / Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
dylancachan 0:6ce9c65992e5 71 / Fixed name matching error on the 13 char boundary.
dylancachan 0:6ce9c65992e5 72 / Added a configuration option, _LFN_UNICODE.
dylancachan 0:6ce9c65992e5 73 / Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
dylancachan 0:6ce9c65992e5 74 /
dylancachan 0:6ce9c65992e5 75 / May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
dylancachan 0:6ce9c65992e5 76 / Added file lock feature. (_FS_SHARE)
dylancachan 0:6ce9c65992e5 77 / Added fast seek feature. (_USE_FASTSEEK)
dylancachan 0:6ce9c65992e5 78 / Changed some types on the API, XCHAR->TCHAR.
dylancachan 0:6ce9c65992e5 79 / Changed fname member in the FILINFO structure on Unicode cfg.
dylancachan 0:6ce9c65992e5 80 / String functions support UTF-8 encoding files on Unicode cfg.
dylancachan 0:6ce9c65992e5 81 / Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
dylancachan 0:6ce9c65992e5 82 / Added sector erase feature. (_USE_ERASE)
dylancachan 0:6ce9c65992e5 83 / Moved file lock semaphore table from fs object to the bss.
dylancachan 0:6ce9c65992e5 84 / Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
dylancachan 0:6ce9c65992e5 85 / Fixed f_mkfs() creates wrong FAT32 volume.
dylancachan 0:6ce9c65992e5 86 / Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
dylancachan 0:6ce9c65992e5 87 / f_lseek() reports required table size on creating CLMP.
dylancachan 0:6ce9c65992e5 88 / Extended format syntax of f_printf function.
dylancachan 0:6ce9c65992e5 89 / Ignores duplicated directory separators in given path name.
dylancachan 0:6ce9c65992e5 90 /
dylancachan 0:6ce9c65992e5 91 / Sep 06,'11 R0.09 f_mkfs() supports multiple partition to finish the multiple partition feature.
dylancachan 0:6ce9c65992e5 92 / Added f_fdisk(). (_MULTI_PARTITION = 2)
dylancachan 0:6ce9c65992e5 93 / Aug 27,'12 R0.09a Fixed assertion failure due to OS/2 EA on FAT12/16 volume.
dylancachan 0:6ce9c65992e5 94 / Changed f_open() and f_opendir reject null object pointer to avoid crash.
dylancachan 0:6ce9c65992e5 95 / Changed option name _FS_SHARE to _FS_LOCK.
dylancachan 0:6ce9c65992e5 96 /---------------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 97
dylancachan 0:6ce9c65992e5 98 #include "ff.h" /* FatFs configurations and declarations */
dylancachan 0:6ce9c65992e5 99 #include "diskio.h" /* Declarations of low level disk I/O functions */
dylancachan 0:6ce9c65992e5 100
dylancachan 0:6ce9c65992e5 101
dylancachan 0:6ce9c65992e5 102 /*--------------------------------------------------------------------------
dylancachan 0:6ce9c65992e5 103
dylancachan 0:6ce9c65992e5 104 Module Private Definitions
dylancachan 0:6ce9c65992e5 105
dylancachan 0:6ce9c65992e5 106 ---------------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 107
dylancachan 0:6ce9c65992e5 108 #if _FATFS != 4004 /* Revision ID */
dylancachan 0:6ce9c65992e5 109 #error Wrong include file (ff.h).
dylancachan 0:6ce9c65992e5 110 #endif
dylancachan 0:6ce9c65992e5 111
dylancachan 0:6ce9c65992e5 112
dylancachan 0:6ce9c65992e5 113 /* Definitions on sector size */
dylancachan 0:6ce9c65992e5 114 #if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
dylancachan 0:6ce9c65992e5 115 #error Wrong sector size.
dylancachan 0:6ce9c65992e5 116 #endif
dylancachan 0:6ce9c65992e5 117 #if _MAX_SS != 512
dylancachan 0:6ce9c65992e5 118 #define SS(fs) ((fs)->ssize) /* Variable sector size */
dylancachan 0:6ce9c65992e5 119 #else
dylancachan 0:6ce9c65992e5 120 #define SS(fs) 512U /* Fixed sector size */
dylancachan 0:6ce9c65992e5 121 #endif
dylancachan 0:6ce9c65992e5 122
dylancachan 0:6ce9c65992e5 123
dylancachan 0:6ce9c65992e5 124 /* Reentrancy related */
dylancachan 0:6ce9c65992e5 125 #if _FS_REENTRANT
dylancachan 0:6ce9c65992e5 126 #if _USE_LFN == 1
dylancachan 0:6ce9c65992e5 127 #error Static LFN work area must not be used in re-entrant configuration.
dylancachan 0:6ce9c65992e5 128 #endif
dylancachan 0:6ce9c65992e5 129 #define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
dylancachan 0:6ce9c65992e5 130 #define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
dylancachan 0:6ce9c65992e5 131 #else
dylancachan 0:6ce9c65992e5 132 #define ENTER_FF(fs)
dylancachan 0:6ce9c65992e5 133 #define LEAVE_FF(fs, res) return res
dylancachan 0:6ce9c65992e5 134 #endif
dylancachan 0:6ce9c65992e5 135
dylancachan 0:6ce9c65992e5 136 #define ABORT(fs, res) { fp->flag |= FA__ERROR; LEAVE_FF(fs, res); }
dylancachan 0:6ce9c65992e5 137
dylancachan 0:6ce9c65992e5 138
dylancachan 0:6ce9c65992e5 139 /* File access control feature */
dylancachan 0:6ce9c65992e5 140 #if _FS_LOCK
dylancachan 0:6ce9c65992e5 141 #if _FS_READONLY
dylancachan 0:6ce9c65992e5 142 #error _FS_LOCK must be 0 on read-only cfg.
dylancachan 0:6ce9c65992e5 143 #endif
dylancachan 0:6ce9c65992e5 144 typedef struct {
dylancachan 0:6ce9c65992e5 145 FATFS *fs; /* File ID 1, volume (NULL:blank entry) */
dylancachan 0:6ce9c65992e5 146 DWORD clu; /* File ID 2, directory */
dylancachan 0:6ce9c65992e5 147 WORD idx; /* File ID 3, directory index */
dylancachan 0:6ce9c65992e5 148 WORD ctr; /* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:write mode */
dylancachan 0:6ce9c65992e5 149 } FILESEM;
dylancachan 0:6ce9c65992e5 150 #endif
dylancachan 0:6ce9c65992e5 151
dylancachan 0:6ce9c65992e5 152
dylancachan 0:6ce9c65992e5 153
dylancachan 0:6ce9c65992e5 154 /* DBCS code ranges and SBCS extend char conversion table */
dylancachan 0:6ce9c65992e5 155
dylancachan 0:6ce9c65992e5 156 #if _CODE_PAGE == 932 /* Japanese Shift-JIS */
dylancachan 0:6ce9c65992e5 157 #define _DF1S 0x81 /* DBC 1st byte range 1 start */
dylancachan 0:6ce9c65992e5 158 #define _DF1E 0x9F /* DBC 1st byte range 1 end */
dylancachan 0:6ce9c65992e5 159 #define _DF2S 0xE0 /* DBC 1st byte range 2 start */
dylancachan 0:6ce9c65992e5 160 #define _DF2E 0xFC /* DBC 1st byte range 2 end */
dylancachan 0:6ce9c65992e5 161 #define _DS1S 0x40 /* DBC 2nd byte range 1 start */
dylancachan 0:6ce9c65992e5 162 #define _DS1E 0x7E /* DBC 2nd byte range 1 end */
dylancachan 0:6ce9c65992e5 163 #define _DS2S 0x80 /* DBC 2nd byte range 2 start */
dylancachan 0:6ce9c65992e5 164 #define _DS2E 0xFC /* DBC 2nd byte range 2 end */
dylancachan 0:6ce9c65992e5 165
dylancachan 0:6ce9c65992e5 166 #elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
dylancachan 0:6ce9c65992e5 167 #define _DF1S 0x81
dylancachan 0:6ce9c65992e5 168 #define _DF1E 0xFE
dylancachan 0:6ce9c65992e5 169 #define _DS1S 0x40
dylancachan 0:6ce9c65992e5 170 #define _DS1E 0x7E
dylancachan 0:6ce9c65992e5 171 #define _DS2S 0x80
dylancachan 0:6ce9c65992e5 172 #define _DS2E 0xFE
dylancachan 0:6ce9c65992e5 173
dylancachan 0:6ce9c65992e5 174 #elif _CODE_PAGE == 949 /* Korean */
dylancachan 0:6ce9c65992e5 175 #define _DF1S 0x81
dylancachan 0:6ce9c65992e5 176 #define _DF1E 0xFE
dylancachan 0:6ce9c65992e5 177 #define _DS1S 0x41
dylancachan 0:6ce9c65992e5 178 #define _DS1E 0x5A
dylancachan 0:6ce9c65992e5 179 #define _DS2S 0x61
dylancachan 0:6ce9c65992e5 180 #define _DS2E 0x7A
dylancachan 0:6ce9c65992e5 181 #define _DS3S 0x81
dylancachan 0:6ce9c65992e5 182 #define _DS3E 0xFE
dylancachan 0:6ce9c65992e5 183
dylancachan 0:6ce9c65992e5 184 #elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
dylancachan 0:6ce9c65992e5 185 #define _DF1S 0x81
dylancachan 0:6ce9c65992e5 186 #define _DF1E 0xFE
dylancachan 0:6ce9c65992e5 187 #define _DS1S 0x40
dylancachan 0:6ce9c65992e5 188 #define _DS1E 0x7E
dylancachan 0:6ce9c65992e5 189 #define _DS2S 0xA1
dylancachan 0:6ce9c65992e5 190 #define _DS2E 0xFE
dylancachan 0:6ce9c65992e5 191
dylancachan 0:6ce9c65992e5 192 #elif _CODE_PAGE == 437 /* U.S. (OEM) */
dylancachan 0:6ce9c65992e5 193 #define _DF1S 0
dylancachan 0:6ce9c65992e5 194 #define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F,0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 195 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 196 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 197 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 198
dylancachan 0:6ce9c65992e5 199 #elif _CODE_PAGE == 720 /* Arabic (OEM) */
dylancachan 0:6ce9c65992e5 200 #define _DF1S 0
dylancachan 0:6ce9c65992e5 201 #define _EXCVT {0x80,0x81,0x45,0x41,0x84,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x49,0x49,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 202 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 203 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 204 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 205
dylancachan 0:6ce9c65992e5 206 #elif _CODE_PAGE == 737 /* Greek (OEM) */
dylancachan 0:6ce9c65992e5 207 #define _DF1S 0
dylancachan 0:6ce9c65992e5 208 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
dylancachan 0:6ce9c65992e5 209 0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 210 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 211 0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xE7,0xE8,0xF1,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 212
dylancachan 0:6ce9c65992e5 213 #elif _CODE_PAGE == 775 /* Baltic (OEM) */
dylancachan 0:6ce9c65992e5 214 #define _DF1S 0
dylancachan 0:6ce9c65992e5 215 #define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 216 0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 217 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 218 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 219
dylancachan 0:6ce9c65992e5 220 #elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
dylancachan 0:6ce9c65992e5 221 #define _DF1S 0
dylancachan 0:6ce9c65992e5 222 #define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 223 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 224 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 225 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 226
dylancachan 0:6ce9c65992e5 227 #elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
dylancachan 0:6ce9c65992e5 228 #define _DF1S 0
dylancachan 0:6ce9c65992e5 229 #define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F,0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 230 0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
dylancachan 0:6ce9c65992e5 231 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 232 0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 233
dylancachan 0:6ce9c65992e5 234 #elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
dylancachan 0:6ce9c65992e5 235 #define _DF1S 0
dylancachan 0:6ce9c65992e5 236 #define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F,0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
dylancachan 0:6ce9c65992e5 237 0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 238 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
dylancachan 0:6ce9c65992e5 239 0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 240
dylancachan 0:6ce9c65992e5 241 #elif _CODE_PAGE == 857 /* Turkish (OEM) */
dylancachan 0:6ce9c65992e5 242 #define _DF1S 0
dylancachan 0:6ce9c65992e5 243 #define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x98,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
dylancachan 0:6ce9c65992e5 244 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 245 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 246 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0x59,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 247
dylancachan 0:6ce9c65992e5 248 #elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
dylancachan 0:6ce9c65992e5 249 #define _DF1S 0
dylancachan 0:6ce9c65992e5 250 #define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 251 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 252 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 253 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 254
dylancachan 0:6ce9c65992e5 255 #elif _CODE_PAGE == 862 /* Hebrew (OEM) */
dylancachan 0:6ce9c65992e5 256 #define _DF1S 0
dylancachan 0:6ce9c65992e5 257 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 258 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 259 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 260 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 261
dylancachan 0:6ce9c65992e5 262 #elif _CODE_PAGE == 866 /* Russian (OEM) */
dylancachan 0:6ce9c65992e5 263 #define _DF1S 0
dylancachan 0:6ce9c65992e5 264 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 265 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 266 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 267 0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 268
dylancachan 0:6ce9c65992e5 269 #elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
dylancachan 0:6ce9c65992e5 270 #define _DF1S 0
dylancachan 0:6ce9c65992e5 271 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 272 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 273 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 274 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 275
dylancachan 0:6ce9c65992e5 276 #elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
dylancachan 0:6ce9c65992e5 277 #define _DF1S 0
dylancachan 0:6ce9c65992e5 278 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
dylancachan 0:6ce9c65992e5 279 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xA3,0xB4,0xB5,0xB6,0xB7,0xB8,0xA5,0xAA,0xBB,0xBC,0xBD,0xBC,0xAF, \
dylancachan 0:6ce9c65992e5 280 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 281 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
dylancachan 0:6ce9c65992e5 282
dylancachan 0:6ce9c65992e5 283 #elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
dylancachan 0:6ce9c65992e5 284 #define _DF1S 0
dylancachan 0:6ce9c65992e5 285 #define _EXCVT {0x80,0x81,0x82,0x82,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x80,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
dylancachan 0:6ce9c65992e5 286 0xA0,0xA2,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB2,0xA5,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xA3,0xBD,0xBD,0xAF, \
dylancachan 0:6ce9c65992e5 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, \
dylancachan 0:6ce9c65992e5 288 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF}
dylancachan 0:6ce9c65992e5 289
dylancachan 0:6ce9c65992e5 290 #elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
dylancachan 0:6ce9c65992e5 291 #define _DF1S 0
dylancachan 0:6ce9c65992e5 292 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0xAd,0x9B,0x8C,0x9D,0xAE,0x9F, \
dylancachan 0:6ce9c65992e5 293 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 294 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 295 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
dylancachan 0:6ce9c65992e5 296
dylancachan 0:6ce9c65992e5 297 #elif _CODE_PAGE == 1253 /* Greek (Windows) */
dylancachan 0:6ce9c65992e5 298 #define _DF1S 0
dylancachan 0:6ce9c65992e5 299 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 300 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 301 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xA2,0xB8,0xB9,0xBA, \
dylancachan 0:6ce9c65992e5 302 0xE0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xFB,0xBC,0xFD,0xBF,0xFF}
dylancachan 0:6ce9c65992e5 303
dylancachan 0:6ce9c65992e5 304 #elif _CODE_PAGE == 1254 /* Turkish (Windows) */
dylancachan 0:6ce9c65992e5 305 #define _DF1S 0
dylancachan 0:6ce9c65992e5 306 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 307 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 308 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 309 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
dylancachan 0:6ce9c65992e5 310
dylancachan 0:6ce9c65992e5 311 #elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
dylancachan 0:6ce9c65992e5 312 #define _DF1S 0
dylancachan 0:6ce9c65992e5 313 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 314 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 315 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 316 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 317
dylancachan 0:6ce9c65992e5 318 #elif _CODE_PAGE == 1256 /* Arabic (Windows) */
dylancachan 0:6ce9c65992e5 319 #define _DF1S 0
dylancachan 0:6ce9c65992e5 320 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x8C,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 321 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 322 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 323 0x41,0xE1,0x41,0xE3,0xE4,0xE5,0xE6,0x43,0x45,0x45,0x45,0x45,0xEC,0xED,0x49,0x49,0xF0,0xF1,0xF2,0xF3,0x4F,0xF5,0xF6,0xF7,0xF8,0x55,0xFA,0x55,0x55,0xFD,0xFE,0xFF}
dylancachan 0:6ce9c65992e5 324
dylancachan 0:6ce9c65992e5 325 #elif _CODE_PAGE == 1257 /* Baltic (Windows) */
dylancachan 0:6ce9c65992e5 326 #define _DF1S 0
dylancachan 0:6ce9c65992e5 327 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 328 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xBC,0xBD,0xBE,0xAF, \
dylancachan 0:6ce9c65992e5 329 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 330 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
dylancachan 0:6ce9c65992e5 331
dylancachan 0:6ce9c65992e5 332 #elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
dylancachan 0:6ce9c65992e5 333 #define _DF1S 0
dylancachan 0:6ce9c65992e5 334 #define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0xAC,0x9D,0x9E,0x9F, \
dylancachan 0:6ce9c65992e5 335 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
dylancachan 0:6ce9c65992e5 336 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
dylancachan 0:6ce9c65992e5 337 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xEC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xFE,0x9F}
dylancachan 0:6ce9c65992e5 338
dylancachan 0:6ce9c65992e5 339 #elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
dylancachan 0:6ce9c65992e5 340 #if _USE_LFN
dylancachan 0:6ce9c65992e5 341 #error Cannot use LFN feature without valid code page.
dylancachan 0:6ce9c65992e5 342 #endif
dylancachan 0:6ce9c65992e5 343 #define _DF1S 0
dylancachan 0:6ce9c65992e5 344
dylancachan 0:6ce9c65992e5 345 #else
dylancachan 0:6ce9c65992e5 346 #error Unknown code page
dylancachan 0:6ce9c65992e5 347
dylancachan 0:6ce9c65992e5 348 #endif
dylancachan 0:6ce9c65992e5 349
dylancachan 0:6ce9c65992e5 350
dylancachan 0:6ce9c65992e5 351 /* Character code support macros */
dylancachan 0:6ce9c65992e5 352 #define IsUpper(c) (((c)>='A')&&((c)<='Z'))
dylancachan 0:6ce9c65992e5 353 #define IsLower(c) (((c)>='a')&&((c)<='z'))
dylancachan 0:6ce9c65992e5 354 #define IsDigit(c) (((c)>='0')&&((c)<='9'))
dylancachan 0:6ce9c65992e5 355
dylancachan 0:6ce9c65992e5 356 #if _DF1S /* Code page is DBCS */
dylancachan 0:6ce9c65992e5 357
dylancachan 0:6ce9c65992e5 358 #ifdef _DF2S /* Two 1st byte areas */
dylancachan 0:6ce9c65992e5 359 #define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) || ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
dylancachan 0:6ce9c65992e5 360 #else /* One 1st byte area */
dylancachan 0:6ce9c65992e5 361 #define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
dylancachan 0:6ce9c65992e5 362 #endif
dylancachan 0:6ce9c65992e5 363
dylancachan 0:6ce9c65992e5 364 #ifdef _DS3S /* Three 2nd byte areas */
dylancachan 0:6ce9c65992e5 365 #define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) || ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
dylancachan 0:6ce9c65992e5 366 #else /* Two 2nd byte areas */
dylancachan 0:6ce9c65992e5 367 #define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
dylancachan 0:6ce9c65992e5 368 #endif
dylancachan 0:6ce9c65992e5 369
dylancachan 0:6ce9c65992e5 370 #else /* Code page is SBCS */
dylancachan 0:6ce9c65992e5 371
dylancachan 0:6ce9c65992e5 372 #define IsDBCS1(c) 0
dylancachan 0:6ce9c65992e5 373 #define IsDBCS2(c) 0
dylancachan 0:6ce9c65992e5 374
dylancachan 0:6ce9c65992e5 375 #endif /* _DF1S */
dylancachan 0:6ce9c65992e5 376
dylancachan 0:6ce9c65992e5 377
dylancachan 0:6ce9c65992e5 378 /* Name status flags */
dylancachan 0:6ce9c65992e5 379 #define NS 11 /* Index of name status byte in fn[] */
dylancachan 0:6ce9c65992e5 380 #define NS_LOSS 0x01 /* Out of 8.3 format */
dylancachan 0:6ce9c65992e5 381 #define NS_LFN 0x02 /* Force to create LFN entry */
dylancachan 0:6ce9c65992e5 382 #define NS_LAST 0x04 /* Last segment */
dylancachan 0:6ce9c65992e5 383 #define NS_BODY 0x08 /* Lower case flag (body) */
dylancachan 0:6ce9c65992e5 384 #define NS_EXT 0x10 /* Lower case flag (ext) */
dylancachan 0:6ce9c65992e5 385 #define NS_DOT 0x20 /* Dot entry */
dylancachan 0:6ce9c65992e5 386
dylancachan 0:6ce9c65992e5 387
dylancachan 0:6ce9c65992e5 388 /* FAT sub-type boundaries */
dylancachan 0:6ce9c65992e5 389 /* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */
dylancachan 0:6ce9c65992e5 390 #define MIN_FAT16 4086 /* Minimum number of clusters for FAT16 */
dylancachan 0:6ce9c65992e5 391 #define MIN_FAT32 65526 /* Minimum number of clusters for FAT32 */
dylancachan 0:6ce9c65992e5 392
dylancachan 0:6ce9c65992e5 393
dylancachan 0:6ce9c65992e5 394 /* FatFs refers the members in the FAT structures as byte array instead of
dylancachan 0:6ce9c65992e5 395 / structure member because the structure is not binary compatible between
dylancachan 0:6ce9c65992e5 396 / different platforms */
dylancachan 0:6ce9c65992e5 397
dylancachan 0:6ce9c65992e5 398 #define BS_jmpBoot 0 /* Jump instruction (3) */
dylancachan 0:6ce9c65992e5 399 #define BS_OEMName 3 /* OEM name (8) */
dylancachan 0:6ce9c65992e5 400 #define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
dylancachan 0:6ce9c65992e5 401 #define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
dylancachan 0:6ce9c65992e5 402 #define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
dylancachan 0:6ce9c65992e5 403 #define BPB_NumFATs 16 /* Number of FAT copies (1) */
dylancachan 0:6ce9c65992e5 404 #define BPB_RootEntCnt 17 /* Number of root dir entries for FAT12/16 (2) */
dylancachan 0:6ce9c65992e5 405 #define BPB_TotSec16 19 /* Volume size [sector] (2) */
dylancachan 0:6ce9c65992e5 406 #define BPB_Media 21 /* Media descriptor (1) */
dylancachan 0:6ce9c65992e5 407 #define BPB_FATSz16 22 /* FAT size [sector] (2) */
dylancachan 0:6ce9c65992e5 408 #define BPB_SecPerTrk 24 /* Track size [sector] (2) */
dylancachan 0:6ce9c65992e5 409 #define BPB_NumHeads 26 /* Number of heads (2) */
dylancachan 0:6ce9c65992e5 410 #define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
dylancachan 0:6ce9c65992e5 411 #define BPB_TotSec32 32 /* Volume size [sector] (4) */
dylancachan 0:6ce9c65992e5 412 #define BS_DrvNum 36 /* Physical drive number (2) */
dylancachan 0:6ce9c65992e5 413 #define BS_BootSig 38 /* Extended boot signature (1) */
dylancachan 0:6ce9c65992e5 414 #define BS_VolID 39 /* Volume serial number (4) */
dylancachan 0:6ce9c65992e5 415 #define BS_VolLab 43 /* Volume label (8) */
dylancachan 0:6ce9c65992e5 416 #define BS_FilSysType 54 /* File system type (1) */
dylancachan 0:6ce9c65992e5 417 #define BPB_FATSz32 36 /* FAT size [sector] (4) */
dylancachan 0:6ce9c65992e5 418 #define BPB_ExtFlags 40 /* Extended flags (2) */
dylancachan 0:6ce9c65992e5 419 #define BPB_FSVer 42 /* File system version (2) */
dylancachan 0:6ce9c65992e5 420 #define BPB_RootClus 44 /* Root dir first cluster (4) */
dylancachan 0:6ce9c65992e5 421 #define BPB_FSInfo 48 /* Offset of FSInfo sector (2) */
dylancachan 0:6ce9c65992e5 422 #define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
dylancachan 0:6ce9c65992e5 423 #define BS_DrvNum32 64 /* Physical drive number (2) */
dylancachan 0:6ce9c65992e5 424 #define BS_BootSig32 66 /* Extended boot signature (1) */
dylancachan 0:6ce9c65992e5 425 #define BS_VolID32 67 /* Volume serial number (4) */
dylancachan 0:6ce9c65992e5 426 #define BS_VolLab32 71 /* Volume label (8) */
dylancachan 0:6ce9c65992e5 427 #define BS_FilSysType32 82 /* File system type (1) */
dylancachan 0:6ce9c65992e5 428 #define FSI_LeadSig 0 /* FSI: Leading signature (4) */
dylancachan 0:6ce9c65992e5 429 #define FSI_StrucSig 484 /* FSI: Structure signature (4) */
dylancachan 0:6ce9c65992e5 430 #define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
dylancachan 0:6ce9c65992e5 431 #define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
dylancachan 0:6ce9c65992e5 432 #define MBR_Table 446 /* MBR: Partition table offset (2) */
dylancachan 0:6ce9c65992e5 433 #define SZ_PTE 16 /* MBR: Size of a partition table entry */
dylancachan 0:6ce9c65992e5 434 #define BS_55AA 510 /* Boot sector signature (2) */
dylancachan 0:6ce9c65992e5 435
dylancachan 0:6ce9c65992e5 436 #define DIR_Name 0 /* Short file name (11) */
dylancachan 0:6ce9c65992e5 437 #define DIR_Attr 11 /* Attribute (1) */
dylancachan 0:6ce9c65992e5 438 #define DIR_NTres 12 /* NT flag (1) */
dylancachan 0:6ce9c65992e5 439 #define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
dylancachan 0:6ce9c65992e5 440 #define DIR_CrtTime 14 /* Created time (2) */
dylancachan 0:6ce9c65992e5 441 #define DIR_CrtDate 16 /* Created date (2) */
dylancachan 0:6ce9c65992e5 442 #define DIR_LstAccDate 18 /* Last accessed date (2) */
dylancachan 0:6ce9c65992e5 443 #define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
dylancachan 0:6ce9c65992e5 444 #define DIR_WrtTime 22 /* Modified time (2) */
dylancachan 0:6ce9c65992e5 445 #define DIR_WrtDate 24 /* Modified date (2) */
dylancachan 0:6ce9c65992e5 446 #define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
dylancachan 0:6ce9c65992e5 447 #define DIR_FileSize 28 /* File size (4) */
dylancachan 0:6ce9c65992e5 448 #define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
dylancachan 0:6ce9c65992e5 449 #define LDIR_Attr 11 /* LFN attribute (1) */
dylancachan 0:6ce9c65992e5 450 #define LDIR_Type 12 /* LFN type (1) */
dylancachan 0:6ce9c65992e5 451 #define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
dylancachan 0:6ce9c65992e5 452 #define LDIR_FstClusLO 26 /* Filled by zero (0) */
dylancachan 0:6ce9c65992e5 453 #define SZ_DIR 32 /* Size of a directory entry */
dylancachan 0:6ce9c65992e5 454 #define LLE 0x40 /* Last long entry flag in LDIR_Ord */
dylancachan 0:6ce9c65992e5 455 #define DDE 0xE5 /* Deleted directory entry mark in DIR_Name[0] */
dylancachan 0:6ce9c65992e5 456 #define NDDE 0x05 /* Replacement of the character collides with DDE */
dylancachan 0:6ce9c65992e5 457
dylancachan 0:6ce9c65992e5 458
dylancachan 0:6ce9c65992e5 459 /*------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 460 /* Module private work area */
dylancachan 0:6ce9c65992e5 461 /*------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 462 /* Note that uninitialized variables with static duration are
dylancachan 0:6ce9c65992e5 463 / zeroed/nulled at start-up. If not, the compiler or start-up
dylancachan 0:6ce9c65992e5 464 / routine is out of ANSI-C standard.
dylancachan 0:6ce9c65992e5 465 */
dylancachan 0:6ce9c65992e5 466
dylancachan 0:6ce9c65992e5 467 #if _VOLUMES
dylancachan 0:6ce9c65992e5 468 static
dylancachan 0:6ce9c65992e5 469 FATFS *FatFs[_VOLUMES]; /* Pointer to the file system objects (logical drives) */
dylancachan 0:6ce9c65992e5 470 #else
dylancachan 0:6ce9c65992e5 471 #error Number of volumes must not be 0.
dylancachan 0:6ce9c65992e5 472 #endif
dylancachan 0:6ce9c65992e5 473
dylancachan 0:6ce9c65992e5 474 static
dylancachan 0:6ce9c65992e5 475 WORD Fsid; /* File system mount ID */
dylancachan 0:6ce9c65992e5 476
dylancachan 0:6ce9c65992e5 477 #if _FS_RPATH
dylancachan 0:6ce9c65992e5 478 static
dylancachan 0:6ce9c65992e5 479 BYTE CurrVol; /* Current drive */
dylancachan 0:6ce9c65992e5 480 #endif
dylancachan 0:6ce9c65992e5 481
dylancachan 0:6ce9c65992e5 482 #if _FS_LOCK
dylancachan 0:6ce9c65992e5 483 static
dylancachan 0:6ce9c65992e5 484 FILESEM Files[_FS_LOCK]; /* File lock semaphores */
dylancachan 0:6ce9c65992e5 485 #endif
dylancachan 0:6ce9c65992e5 486
dylancachan 0:6ce9c65992e5 487 #if _USE_LFN == 0 /* No LFN feature */
dylancachan 0:6ce9c65992e5 488 #define DEF_NAMEBUF BYTE sfn[12]
dylancachan 0:6ce9c65992e5 489 #define INIT_BUF(dobj) (dobj).fn = sfn
dylancachan 0:6ce9c65992e5 490 #define FREE_BUF()
dylancachan 0:6ce9c65992e5 491
dylancachan 0:6ce9c65992e5 492 #elif _USE_LFN == 1 /* LFN feature with static working buffer */
dylancachan 0:6ce9c65992e5 493 static WCHAR LfnBuf[_MAX_LFN+1];
dylancachan 0:6ce9c65992e5 494 #define DEF_NAMEBUF BYTE sfn[12]
dylancachan 0:6ce9c65992e5 495 #define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
dylancachan 0:6ce9c65992e5 496 #define FREE_BUF()
dylancachan 0:6ce9c65992e5 497
dylancachan 0:6ce9c65992e5 498 #elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
dylancachan 0:6ce9c65992e5 499 #define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
dylancachan 0:6ce9c65992e5 500 #define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
dylancachan 0:6ce9c65992e5 501 #define FREE_BUF()
dylancachan 0:6ce9c65992e5 502
dylancachan 0:6ce9c65992e5 503 #elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
dylancachan 0:6ce9c65992e5 504 #define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
dylancachan 0:6ce9c65992e5 505 #define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
dylancachan 0:6ce9c65992e5 506 if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
dylancachan 0:6ce9c65992e5 507 (dobj).lfn = lfn; (dobj).fn = sfn; }
dylancachan 0:6ce9c65992e5 508 #define FREE_BUF() ff_memfree(lfn)
dylancachan 0:6ce9c65992e5 509
dylancachan 0:6ce9c65992e5 510 #else
dylancachan 0:6ce9c65992e5 511 #error Wrong LFN configuration.
dylancachan 0:6ce9c65992e5 512 #endif
dylancachan 0:6ce9c65992e5 513
dylancachan 0:6ce9c65992e5 514
dylancachan 0:6ce9c65992e5 515
dylancachan 0:6ce9c65992e5 516
dylancachan 0:6ce9c65992e5 517 /*--------------------------------------------------------------------------
dylancachan 0:6ce9c65992e5 518
dylancachan 0:6ce9c65992e5 519 Module Private Functions
dylancachan 0:6ce9c65992e5 520
dylancachan 0:6ce9c65992e5 521 ---------------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 522
dylancachan 0:6ce9c65992e5 523
dylancachan 0:6ce9c65992e5 524 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 525 /* String functions */
dylancachan 0:6ce9c65992e5 526 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 527
dylancachan 0:6ce9c65992e5 528 /* Copy memory to memory */
dylancachan 0:6ce9c65992e5 529 static
dylancachan 0:6ce9c65992e5 530 void mem_cpy (void* dst, const void* src, UINT cnt) {
dylancachan 0:6ce9c65992e5 531 BYTE *d = (BYTE*)dst;
dylancachan 0:6ce9c65992e5 532 const BYTE *s = (const BYTE*)src;
dylancachan 0:6ce9c65992e5 533
dylancachan 0:6ce9c65992e5 534 #if _WORD_ACCESS == 1
dylancachan 0:6ce9c65992e5 535 while (cnt >= sizeof (int)) {
dylancachan 0:6ce9c65992e5 536 *(int*)d = *(int*)s;
dylancachan 0:6ce9c65992e5 537 d += sizeof (int); s += sizeof (int);
dylancachan 0:6ce9c65992e5 538 cnt -= sizeof (int);
dylancachan 0:6ce9c65992e5 539 }
dylancachan 0:6ce9c65992e5 540 #endif
dylancachan 0:6ce9c65992e5 541 while (cnt--)
dylancachan 0:6ce9c65992e5 542 *d++ = *s++;
dylancachan 0:6ce9c65992e5 543 }
dylancachan 0:6ce9c65992e5 544
dylancachan 0:6ce9c65992e5 545 /* Fill memory */
dylancachan 0:6ce9c65992e5 546 static
dylancachan 0:6ce9c65992e5 547 void mem_set (void* dst, int val, UINT cnt) {
dylancachan 0:6ce9c65992e5 548 BYTE *d = (BYTE*)dst;
dylancachan 0:6ce9c65992e5 549
dylancachan 0:6ce9c65992e5 550 while (cnt--)
dylancachan 0:6ce9c65992e5 551 *d++ = (BYTE)val;
dylancachan 0:6ce9c65992e5 552 }
dylancachan 0:6ce9c65992e5 553
dylancachan 0:6ce9c65992e5 554 /* Compare memory to memory */
dylancachan 0:6ce9c65992e5 555 static
dylancachan 0:6ce9c65992e5 556 int mem_cmp (const void* dst, const void* src, UINT cnt) {
dylancachan 0:6ce9c65992e5 557 const BYTE *d = (const BYTE *)dst, *s = (const BYTE *)src;
dylancachan 0:6ce9c65992e5 558 int r = 0;
dylancachan 0:6ce9c65992e5 559
dylancachan 0:6ce9c65992e5 560 while (cnt-- && (r = *d++ - *s++) == 0) ;
dylancachan 0:6ce9c65992e5 561 return r;
dylancachan 0:6ce9c65992e5 562 }
dylancachan 0:6ce9c65992e5 563
dylancachan 0:6ce9c65992e5 564 /* Check if chr is contained in the string */
dylancachan 0:6ce9c65992e5 565 static
dylancachan 0:6ce9c65992e5 566 int chk_chr (const char* str, int chr) {
dylancachan 0:6ce9c65992e5 567 while (*str && *str != chr) str++;
dylancachan 0:6ce9c65992e5 568 return *str;
dylancachan 0:6ce9c65992e5 569 }
dylancachan 0:6ce9c65992e5 570
dylancachan 0:6ce9c65992e5 571
dylancachan 0:6ce9c65992e5 572
dylancachan 0:6ce9c65992e5 573 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 574 /* Request/Release grant to access the volume */
dylancachan 0:6ce9c65992e5 575 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 576 #if _FS_REENTRANT
dylancachan 0:6ce9c65992e5 577
dylancachan 0:6ce9c65992e5 578 static
dylancachan 0:6ce9c65992e5 579 int lock_fs (
dylancachan 0:6ce9c65992e5 580 FATFS *fs /* File system object */
dylancachan 0:6ce9c65992e5 581 )
dylancachan 0:6ce9c65992e5 582 {
dylancachan 0:6ce9c65992e5 583 return ff_req_grant(fs->sobj);
dylancachan 0:6ce9c65992e5 584 }
dylancachan 0:6ce9c65992e5 585
dylancachan 0:6ce9c65992e5 586
dylancachan 0:6ce9c65992e5 587 static
dylancachan 0:6ce9c65992e5 588 void unlock_fs (
dylancachan 0:6ce9c65992e5 589 FATFS *fs, /* File system object */
dylancachan 0:6ce9c65992e5 590 FRESULT res /* Result code to be returned */
dylancachan 0:6ce9c65992e5 591 )
dylancachan 0:6ce9c65992e5 592 {
dylancachan 0:6ce9c65992e5 593 if (fs &&
dylancachan 0:6ce9c65992e5 594 res != FR_NOT_ENABLED &&
dylancachan 0:6ce9c65992e5 595 res != FR_INVALID_DRIVE &&
dylancachan 0:6ce9c65992e5 596 res != FR_INVALID_OBJECT &&
dylancachan 0:6ce9c65992e5 597 res != FR_TIMEOUT) {
dylancachan 0:6ce9c65992e5 598 ff_rel_grant(fs->sobj);
dylancachan 0:6ce9c65992e5 599 }
dylancachan 0:6ce9c65992e5 600 }
dylancachan 0:6ce9c65992e5 601 #endif
dylancachan 0:6ce9c65992e5 602
dylancachan 0:6ce9c65992e5 603
dylancachan 0:6ce9c65992e5 604
dylancachan 0:6ce9c65992e5 605 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 606 /* File lock control functions */
dylancachan 0:6ce9c65992e5 607 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 608 #if _FS_LOCK
dylancachan 0:6ce9c65992e5 609
dylancachan 0:6ce9c65992e5 610 static
dylancachan 0:6ce9c65992e5 611 FRESULT chk_lock ( /* Check if the file can be accessed */
dylancachan 0:6ce9c65992e5 612 DIR* dj, /* Directory object pointing the file to be checked */
dylancachan 0:6ce9c65992e5 613 int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
dylancachan 0:6ce9c65992e5 614 )
dylancachan 0:6ce9c65992e5 615 {
dylancachan 0:6ce9c65992e5 616 UINT i, be;
dylancachan 0:6ce9c65992e5 617
dylancachan 0:6ce9c65992e5 618 /* Search file semaphore table */
dylancachan 0:6ce9c65992e5 619 for (i = be = 0; i < _FS_LOCK; i++) {
dylancachan 0:6ce9c65992e5 620 if (Files[i].fs) { /* Existing entry */
dylancachan 0:6ce9c65992e5 621 if (Files[i].fs == dj->fs && /* Check if the file matched with an open file */
dylancachan 0:6ce9c65992e5 622 Files[i].clu == dj->sclust &&
dylancachan 0:6ce9c65992e5 623 Files[i].idx == dj->index) break;
dylancachan 0:6ce9c65992e5 624 } else { /* Blank entry */
dylancachan 0:6ce9c65992e5 625 be++;
dylancachan 0:6ce9c65992e5 626 }
dylancachan 0:6ce9c65992e5 627 }
dylancachan 0:6ce9c65992e5 628 if (i == _FS_LOCK) /* The file is not opened */
dylancachan 0:6ce9c65992e5 629 return (be || acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new file? */
dylancachan 0:6ce9c65992e5 630
dylancachan 0:6ce9c65992e5 631 /* The file has been opened. Reject any open against writing file and all write mode open */
dylancachan 0:6ce9c65992e5 632 return (acc || Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
dylancachan 0:6ce9c65992e5 633 }
dylancachan 0:6ce9c65992e5 634
dylancachan 0:6ce9c65992e5 635
dylancachan 0:6ce9c65992e5 636 static
dylancachan 0:6ce9c65992e5 637 int enq_lock (void) /* Check if an entry is available for a new file */
dylancachan 0:6ce9c65992e5 638 {
dylancachan 0:6ce9c65992e5 639 UINT i;
dylancachan 0:6ce9c65992e5 640
dylancachan 0:6ce9c65992e5 641 for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
dylancachan 0:6ce9c65992e5 642 return (i == _FS_LOCK) ? 0 : 1;
dylancachan 0:6ce9c65992e5 643 }
dylancachan 0:6ce9c65992e5 644
dylancachan 0:6ce9c65992e5 645
dylancachan 0:6ce9c65992e5 646 static
dylancachan 0:6ce9c65992e5 647 UINT inc_lock ( /* Increment file open counter and returns its index (0:int error) */
dylancachan 0:6ce9c65992e5 648 DIR* dj, /* Directory object pointing the file to register or increment */
dylancachan 0:6ce9c65992e5 649 int acc /* Desired access mode (0:Read, !0:Write) */
dylancachan 0:6ce9c65992e5 650 )
dylancachan 0:6ce9c65992e5 651 {
dylancachan 0:6ce9c65992e5 652 UINT i;
dylancachan 0:6ce9c65992e5 653
dylancachan 0:6ce9c65992e5 654
dylancachan 0:6ce9c65992e5 655 for (i = 0; i < _FS_LOCK; i++) { /* Find the file */
dylancachan 0:6ce9c65992e5 656 if (Files[i].fs == dj->fs &&
dylancachan 0:6ce9c65992e5 657 Files[i].clu == dj->sclust &&
dylancachan 0:6ce9c65992e5 658 Files[i].idx == dj->index) break;
dylancachan 0:6ce9c65992e5 659 }
dylancachan 0:6ce9c65992e5 660
dylancachan 0:6ce9c65992e5 661 if (i == _FS_LOCK) { /* Not opened. Register it as new. */
dylancachan 0:6ce9c65992e5 662 for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
dylancachan 0:6ce9c65992e5 663 if (i == _FS_LOCK) return 0; /* No space to register (int err) */
dylancachan 0:6ce9c65992e5 664 Files[i].fs = dj->fs;
dylancachan 0:6ce9c65992e5 665 Files[i].clu = dj->sclust;
dylancachan 0:6ce9c65992e5 666 Files[i].idx = dj->index;
dylancachan 0:6ce9c65992e5 667 Files[i].ctr = 0;
dylancachan 0:6ce9c65992e5 668 }
dylancachan 0:6ce9c65992e5 669
dylancachan 0:6ce9c65992e5 670 if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
dylancachan 0:6ce9c65992e5 671
dylancachan 0:6ce9c65992e5 672 Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
dylancachan 0:6ce9c65992e5 673
dylancachan 0:6ce9c65992e5 674 return i + 1;
dylancachan 0:6ce9c65992e5 675 }
dylancachan 0:6ce9c65992e5 676
dylancachan 0:6ce9c65992e5 677
dylancachan 0:6ce9c65992e5 678 static
dylancachan 0:6ce9c65992e5 679 FRESULT dec_lock ( /* Decrement file open counter */
dylancachan 0:6ce9c65992e5 680 UINT i /* Semaphore index */
dylancachan 0:6ce9c65992e5 681 )
dylancachan 0:6ce9c65992e5 682 {
dylancachan 0:6ce9c65992e5 683 WORD n;
dylancachan 0:6ce9c65992e5 684 FRESULT res;
dylancachan 0:6ce9c65992e5 685
dylancachan 0:6ce9c65992e5 686
dylancachan 0:6ce9c65992e5 687 if (--i < _FS_LOCK) {
dylancachan 0:6ce9c65992e5 688 n = Files[i].ctr;
dylancachan 0:6ce9c65992e5 689 if (n == 0x100) n = 0;
dylancachan 0:6ce9c65992e5 690 if (n) n--;
dylancachan 0:6ce9c65992e5 691 Files[i].ctr = n;
dylancachan 0:6ce9c65992e5 692 if (!n) Files[i].fs = 0;
dylancachan 0:6ce9c65992e5 693 res = FR_OK;
dylancachan 0:6ce9c65992e5 694 } else {
dylancachan 0:6ce9c65992e5 695 res = FR_INT_ERR;
dylancachan 0:6ce9c65992e5 696 }
dylancachan 0:6ce9c65992e5 697 return res;
dylancachan 0:6ce9c65992e5 698 }
dylancachan 0:6ce9c65992e5 699
dylancachan 0:6ce9c65992e5 700
dylancachan 0:6ce9c65992e5 701 static
dylancachan 0:6ce9c65992e5 702 void clear_lock ( /* Clear lock entries of the volume */
dylancachan 0:6ce9c65992e5 703 FATFS *fs
dylancachan 0:6ce9c65992e5 704 )
dylancachan 0:6ce9c65992e5 705 {
dylancachan 0:6ce9c65992e5 706 UINT i;
dylancachan 0:6ce9c65992e5 707
dylancachan 0:6ce9c65992e5 708 for (i = 0; i < _FS_LOCK; i++) {
dylancachan 0:6ce9c65992e5 709 if (Files[i].fs == fs) Files[i].fs = 0;
dylancachan 0:6ce9c65992e5 710 }
dylancachan 0:6ce9c65992e5 711 }
dylancachan 0:6ce9c65992e5 712 #endif
dylancachan 0:6ce9c65992e5 713
dylancachan 0:6ce9c65992e5 714
dylancachan 0:6ce9c65992e5 715
dylancachan 0:6ce9c65992e5 716 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 717 /* Change window offset */
dylancachan 0:6ce9c65992e5 718 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 719
dylancachan 0:6ce9c65992e5 720 static
dylancachan 0:6ce9c65992e5 721 FRESULT move_window (
dylancachan 0:6ce9c65992e5 722 FATFS *fs, /* File system object */
dylancachan 0:6ce9c65992e5 723 DWORD sector /* Sector number to make appearance in the fs->win[] */
dylancachan 0:6ce9c65992e5 724 ) /* Move to zero only writes back dirty window */
dylancachan 0:6ce9c65992e5 725 {
dylancachan 0:6ce9c65992e5 726 DWORD wsect;
dylancachan 0:6ce9c65992e5 727
dylancachan 0:6ce9c65992e5 728
dylancachan 0:6ce9c65992e5 729 wsect = fs->winsect;
dylancachan 0:6ce9c65992e5 730 if (wsect != sector) { /* Changed current window */
dylancachan 0:6ce9c65992e5 731 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 732 if (fs->wflag) { /* Write back dirty window if needed */
dylancachan 0:6ce9c65992e5 733 if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK)
dylancachan 0:6ce9c65992e5 734 return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 735 fs->wflag = 0;
dylancachan 0:6ce9c65992e5 736 if (wsect < (fs->fatbase + fs->fsize)) { /* In FAT area */
dylancachan 0:6ce9c65992e5 737 BYTE nf;
dylancachan 0:6ce9c65992e5 738 for (nf = fs->n_fats; nf > 1; nf--) { /* Reflect the change to all FAT copies */
dylancachan 0:6ce9c65992e5 739 wsect += fs->fsize;
dylancachan 0:6ce9c65992e5 740 disk_write(fs->drv, fs->win, wsect, 1);
dylancachan 0:6ce9c65992e5 741 }
dylancachan 0:6ce9c65992e5 742 }
dylancachan 0:6ce9c65992e5 743 }
dylancachan 0:6ce9c65992e5 744 #endif
dylancachan 0:6ce9c65992e5 745 if (sector) {
dylancachan 0:6ce9c65992e5 746 if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK)
dylancachan 0:6ce9c65992e5 747 return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 748 fs->winsect = sector;
dylancachan 0:6ce9c65992e5 749 }
dylancachan 0:6ce9c65992e5 750 }
dylancachan 0:6ce9c65992e5 751
dylancachan 0:6ce9c65992e5 752 return FR_OK;
dylancachan 0:6ce9c65992e5 753 }
dylancachan 0:6ce9c65992e5 754
dylancachan 0:6ce9c65992e5 755
dylancachan 0:6ce9c65992e5 756
dylancachan 0:6ce9c65992e5 757
dylancachan 0:6ce9c65992e5 758 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 759 /* Clean-up cached data */
dylancachan 0:6ce9c65992e5 760 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 761 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 762 static
dylancachan 0:6ce9c65992e5 763 FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */
dylancachan 0:6ce9c65992e5 764 FATFS *fs /* File system object */
dylancachan 0:6ce9c65992e5 765 )
dylancachan 0:6ce9c65992e5 766 {
dylancachan 0:6ce9c65992e5 767 FRESULT res;
dylancachan 0:6ce9c65992e5 768
dylancachan 0:6ce9c65992e5 769
dylancachan 0:6ce9c65992e5 770 res = move_window(fs, 0);
dylancachan 0:6ce9c65992e5 771 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 772 /* Update FSInfo sector if needed */
dylancachan 0:6ce9c65992e5 773 if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
dylancachan 0:6ce9c65992e5 774 fs->winsect = 0;
dylancachan 0:6ce9c65992e5 775 /* Create FSInfo structure */
dylancachan 0:6ce9c65992e5 776 mem_set(fs->win, 0, 512);
dylancachan 0:6ce9c65992e5 777 ST_WORD(fs->win+BS_55AA, 0xAA55);
dylancachan 0:6ce9c65992e5 778 ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
dylancachan 0:6ce9c65992e5 779 ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
dylancachan 0:6ce9c65992e5 780 ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
dylancachan 0:6ce9c65992e5 781 ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
dylancachan 0:6ce9c65992e5 782 /* Write it into the FSInfo sector */
dylancachan 0:6ce9c65992e5 783 disk_write(fs->drv, fs->win, fs->fsi_sector, 1);
dylancachan 0:6ce9c65992e5 784 fs->fsi_flag = 0;
dylancachan 0:6ce9c65992e5 785 }
dylancachan 0:6ce9c65992e5 786 /* Make sure that no pending write process in the physical drive */
dylancachan 0:6ce9c65992e5 787 if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
dylancachan 0:6ce9c65992e5 788 res = FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 789 }
dylancachan 0:6ce9c65992e5 790
dylancachan 0:6ce9c65992e5 791 return res;
dylancachan 0:6ce9c65992e5 792 }
dylancachan 0:6ce9c65992e5 793 #endif
dylancachan 0:6ce9c65992e5 794
dylancachan 0:6ce9c65992e5 795
dylancachan 0:6ce9c65992e5 796
dylancachan 0:6ce9c65992e5 797
dylancachan 0:6ce9c65992e5 798 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 799 /* Get sector# from cluster# */
dylancachan 0:6ce9c65992e5 800 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 801
dylancachan 0:6ce9c65992e5 802
dylancachan 0:6ce9c65992e5 803 DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
dylancachan 0:6ce9c65992e5 804 FATFS *fs, /* File system object */
dylancachan 0:6ce9c65992e5 805 DWORD clst /* Cluster# to be converted */
dylancachan 0:6ce9c65992e5 806 )
dylancachan 0:6ce9c65992e5 807 {
dylancachan 0:6ce9c65992e5 808 clst -= 2;
dylancachan 0:6ce9c65992e5 809 if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
dylancachan 0:6ce9c65992e5 810 return clst * fs->csize + fs->database;
dylancachan 0:6ce9c65992e5 811 }
dylancachan 0:6ce9c65992e5 812
dylancachan 0:6ce9c65992e5 813
dylancachan 0:6ce9c65992e5 814
dylancachan 0:6ce9c65992e5 815
dylancachan 0:6ce9c65992e5 816 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 817 /* FAT access - Read value of a FAT entry */
dylancachan 0:6ce9c65992e5 818 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 819
dylancachan 0:6ce9c65992e5 820
dylancachan 0:6ce9c65992e5 821 DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
dylancachan 0:6ce9c65992e5 822 FATFS *fs, /* File system object */
dylancachan 0:6ce9c65992e5 823 DWORD clst /* Cluster# to get the link information */
dylancachan 0:6ce9c65992e5 824 )
dylancachan 0:6ce9c65992e5 825 {
dylancachan 0:6ce9c65992e5 826 UINT wc, bc;
dylancachan 0:6ce9c65992e5 827 BYTE *p;
dylancachan 0:6ce9c65992e5 828
dylancachan 0:6ce9c65992e5 829
dylancachan 0:6ce9c65992e5 830 if (clst < 2 || clst >= fs->n_fatent) /* Check range */
dylancachan 0:6ce9c65992e5 831 return 1;
dylancachan 0:6ce9c65992e5 832
dylancachan 0:6ce9c65992e5 833 switch (fs->fs_type) {
dylancachan 0:6ce9c65992e5 834 case FS_FAT12 :
dylancachan 0:6ce9c65992e5 835 bc = (UINT)clst; bc += bc / 2;
dylancachan 0:6ce9c65992e5 836 if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
dylancachan 0:6ce9c65992e5 837 wc = fs->win[bc % SS(fs)]; bc++;
dylancachan 0:6ce9c65992e5 838 if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
dylancachan 0:6ce9c65992e5 839 wc |= fs->win[bc % SS(fs)] << 8;
dylancachan 0:6ce9c65992e5 840 return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
dylancachan 0:6ce9c65992e5 841
dylancachan 0:6ce9c65992e5 842 case FS_FAT16 :
dylancachan 0:6ce9c65992e5 843 if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
dylancachan 0:6ce9c65992e5 844 p = &fs->win[clst * 2 % SS(fs)];
dylancachan 0:6ce9c65992e5 845 return LD_WORD(p);
dylancachan 0:6ce9c65992e5 846
dylancachan 0:6ce9c65992e5 847 case FS_FAT32 :
dylancachan 0:6ce9c65992e5 848 if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
dylancachan 0:6ce9c65992e5 849 p = &fs->win[clst * 4 % SS(fs)];
dylancachan 0:6ce9c65992e5 850 return LD_DWORD(p) & 0x0FFFFFFF;
dylancachan 0:6ce9c65992e5 851 }
dylancachan 0:6ce9c65992e5 852
dylancachan 0:6ce9c65992e5 853 return 0xFFFFFFFF; /* An error occurred at the disk I/O layer */
dylancachan 0:6ce9c65992e5 854 }
dylancachan 0:6ce9c65992e5 855
dylancachan 0:6ce9c65992e5 856
dylancachan 0:6ce9c65992e5 857
dylancachan 0:6ce9c65992e5 858
dylancachan 0:6ce9c65992e5 859 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 860 /* FAT access - Change value of a FAT entry */
dylancachan 0:6ce9c65992e5 861 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 862 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 863
dylancachan 0:6ce9c65992e5 864 FRESULT put_fat (
dylancachan 0:6ce9c65992e5 865 FATFS *fs, /* File system object */
dylancachan 0:6ce9c65992e5 866 DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
dylancachan 0:6ce9c65992e5 867 DWORD val /* New value to mark the cluster */
dylancachan 0:6ce9c65992e5 868 )
dylancachan 0:6ce9c65992e5 869 {
dylancachan 0:6ce9c65992e5 870 UINT bc;
dylancachan 0:6ce9c65992e5 871 BYTE *p;
dylancachan 0:6ce9c65992e5 872 FRESULT res;
dylancachan 0:6ce9c65992e5 873
dylancachan 0:6ce9c65992e5 874
dylancachan 0:6ce9c65992e5 875 if (clst < 2 || clst >= fs->n_fatent) { /* Check range */
dylancachan 0:6ce9c65992e5 876 res = FR_INT_ERR;
dylancachan 0:6ce9c65992e5 877
dylancachan 0:6ce9c65992e5 878 } else {
dylancachan 0:6ce9c65992e5 879 switch (fs->fs_type) {
dylancachan 0:6ce9c65992e5 880 case FS_FAT12 :
dylancachan 0:6ce9c65992e5 881 bc = (UINT)clst; bc += bc / 2;
dylancachan 0:6ce9c65992e5 882 res = move_window(fs, fs->fatbase + (bc / SS(fs)));
dylancachan 0:6ce9c65992e5 883 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 884 p = &fs->win[bc % SS(fs)];
dylancachan 0:6ce9c65992e5 885 *p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val;
dylancachan 0:6ce9c65992e5 886 bc++;
dylancachan 0:6ce9c65992e5 887 fs->wflag = 1;
dylancachan 0:6ce9c65992e5 888 res = move_window(fs, fs->fatbase + (bc / SS(fs)));
dylancachan 0:6ce9c65992e5 889 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 890 p = &fs->win[bc % SS(fs)];
dylancachan 0:6ce9c65992e5 891 *p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F));
dylancachan 0:6ce9c65992e5 892 break;
dylancachan 0:6ce9c65992e5 893
dylancachan 0:6ce9c65992e5 894 case FS_FAT16 :
dylancachan 0:6ce9c65992e5 895 res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
dylancachan 0:6ce9c65992e5 896 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 897 p = &fs->win[clst * 2 % SS(fs)];
dylancachan 0:6ce9c65992e5 898 ST_WORD(p, (WORD)val);
dylancachan 0:6ce9c65992e5 899 break;
dylancachan 0:6ce9c65992e5 900
dylancachan 0:6ce9c65992e5 901 case FS_FAT32 :
dylancachan 0:6ce9c65992e5 902 res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
dylancachan 0:6ce9c65992e5 903 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 904 p = &fs->win[clst * 4 % SS(fs)];
dylancachan 0:6ce9c65992e5 905 val |= LD_DWORD(p) & 0xF0000000;
dylancachan 0:6ce9c65992e5 906 ST_DWORD(p, val);
dylancachan 0:6ce9c65992e5 907 break;
dylancachan 0:6ce9c65992e5 908
dylancachan 0:6ce9c65992e5 909 default :
dylancachan 0:6ce9c65992e5 910 res = FR_INT_ERR;
dylancachan 0:6ce9c65992e5 911 }
dylancachan 0:6ce9c65992e5 912 fs->wflag = 1;
dylancachan 0:6ce9c65992e5 913 }
dylancachan 0:6ce9c65992e5 914
dylancachan 0:6ce9c65992e5 915 return res;
dylancachan 0:6ce9c65992e5 916 }
dylancachan 0:6ce9c65992e5 917 #endif /* !_FS_READONLY */
dylancachan 0:6ce9c65992e5 918
dylancachan 0:6ce9c65992e5 919
dylancachan 0:6ce9c65992e5 920
dylancachan 0:6ce9c65992e5 921
dylancachan 0:6ce9c65992e5 922 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 923 /* FAT handling - Remove a cluster chain */
dylancachan 0:6ce9c65992e5 924 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 925 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 926 static
dylancachan 0:6ce9c65992e5 927 FRESULT remove_chain (
dylancachan 0:6ce9c65992e5 928 FATFS *fs, /* File system object */
dylancachan 0:6ce9c65992e5 929 DWORD clst /* Cluster# to remove a chain from */
dylancachan 0:6ce9c65992e5 930 )
dylancachan 0:6ce9c65992e5 931 {
dylancachan 0:6ce9c65992e5 932 FRESULT res;
dylancachan 0:6ce9c65992e5 933 DWORD nxt;
dylancachan 0:6ce9c65992e5 934 #if _USE_ERASE
dylancachan 0:6ce9c65992e5 935 DWORD scl = clst, ecl = clst, rt[2];
dylancachan 0:6ce9c65992e5 936 #endif
dylancachan 0:6ce9c65992e5 937
dylancachan 0:6ce9c65992e5 938 if (clst < 2 || clst >= fs->n_fatent) { /* Check range */
dylancachan 0:6ce9c65992e5 939 res = FR_INT_ERR;
dylancachan 0:6ce9c65992e5 940
dylancachan 0:6ce9c65992e5 941 } else {
dylancachan 0:6ce9c65992e5 942 res = FR_OK;
dylancachan 0:6ce9c65992e5 943 while (clst < fs->n_fatent) { /* Not a last link? */
dylancachan 0:6ce9c65992e5 944 nxt = get_fat(fs, clst); /* Get cluster status */
dylancachan 0:6ce9c65992e5 945 if (nxt == 0) break; /* Empty cluster? */
dylancachan 0:6ce9c65992e5 946 if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
dylancachan 0:6ce9c65992e5 947 if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
dylancachan 0:6ce9c65992e5 948 res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
dylancachan 0:6ce9c65992e5 949 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 950 if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */
dylancachan 0:6ce9c65992e5 951 fs->free_clust++;
dylancachan 0:6ce9c65992e5 952 fs->fsi_flag = 1;
dylancachan 0:6ce9c65992e5 953 }
dylancachan 0:6ce9c65992e5 954 #if _USE_ERASE
dylancachan 0:6ce9c65992e5 955 if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
dylancachan 0:6ce9c65992e5 956 ecl = nxt;
dylancachan 0:6ce9c65992e5 957 } else { /* End of contiguous clusters */
dylancachan 0:6ce9c65992e5 958 rt[0] = clust2sect(fs, scl); /* Start sector */
dylancachan 0:6ce9c65992e5 959 rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
dylancachan 0:6ce9c65992e5 960 disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, rt); /* Erase the block */
dylancachan 0:6ce9c65992e5 961 scl = ecl = nxt;
dylancachan 0:6ce9c65992e5 962 }
dylancachan 0:6ce9c65992e5 963 #endif
dylancachan 0:6ce9c65992e5 964 clst = nxt; /* Next cluster */
dylancachan 0:6ce9c65992e5 965 }
dylancachan 0:6ce9c65992e5 966 }
dylancachan 0:6ce9c65992e5 967
dylancachan 0:6ce9c65992e5 968 return res;
dylancachan 0:6ce9c65992e5 969 }
dylancachan 0:6ce9c65992e5 970 #endif
dylancachan 0:6ce9c65992e5 971
dylancachan 0:6ce9c65992e5 972
dylancachan 0:6ce9c65992e5 973
dylancachan 0:6ce9c65992e5 974
dylancachan 0:6ce9c65992e5 975 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 976 /* FAT handling - Stretch or Create a cluster chain */
dylancachan 0:6ce9c65992e5 977 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 978 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 979 static
dylancachan 0:6ce9c65992e5 980 DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
dylancachan 0:6ce9c65992e5 981 FATFS *fs, /* File system object */
dylancachan 0:6ce9c65992e5 982 DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
dylancachan 0:6ce9c65992e5 983 )
dylancachan 0:6ce9c65992e5 984 {
dylancachan 0:6ce9c65992e5 985 DWORD cs, ncl, scl;
dylancachan 0:6ce9c65992e5 986 FRESULT res;
dylancachan 0:6ce9c65992e5 987
dylancachan 0:6ce9c65992e5 988
dylancachan 0:6ce9c65992e5 989 if (clst == 0) { /* Create a new chain */
dylancachan 0:6ce9c65992e5 990 scl = fs->last_clust; /* Get suggested start point */
dylancachan 0:6ce9c65992e5 991 if (!scl || scl >= fs->n_fatent) scl = 1;
dylancachan 0:6ce9c65992e5 992 }
dylancachan 0:6ce9c65992e5 993 else { /* Stretch the current chain */
dylancachan 0:6ce9c65992e5 994 cs = get_fat(fs, clst); /* Check the cluster status */
dylancachan 0:6ce9c65992e5 995 if (cs < 2) return 1; /* It is an invalid cluster */
dylancachan 0:6ce9c65992e5 996 if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
dylancachan 0:6ce9c65992e5 997 scl = clst;
dylancachan 0:6ce9c65992e5 998 }
dylancachan 0:6ce9c65992e5 999
dylancachan 0:6ce9c65992e5 1000 ncl = scl; /* Start cluster */
dylancachan 0:6ce9c65992e5 1001 for (;;) {
dylancachan 0:6ce9c65992e5 1002 ncl++; /* Next cluster */
dylancachan 0:6ce9c65992e5 1003 if (ncl >= fs->n_fatent) { /* Wrap around */
dylancachan 0:6ce9c65992e5 1004 ncl = 2;
dylancachan 0:6ce9c65992e5 1005 if (ncl > scl) return 0; /* No free cluster */
dylancachan 0:6ce9c65992e5 1006 }
dylancachan 0:6ce9c65992e5 1007 cs = get_fat(fs, ncl); /* Get the cluster status */
dylancachan 0:6ce9c65992e5 1008 if (cs == 0) break; /* Found a free cluster */
dylancachan 0:6ce9c65992e5 1009 if (cs == 0xFFFFFFFF || cs == 1)/* An error occurred */
dylancachan 0:6ce9c65992e5 1010 return cs;
dylancachan 0:6ce9c65992e5 1011 if (ncl == scl) return 0; /* No free cluster */
dylancachan 0:6ce9c65992e5 1012 }
dylancachan 0:6ce9c65992e5 1013
dylancachan 0:6ce9c65992e5 1014 res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
dylancachan 0:6ce9c65992e5 1015 if (res == FR_OK && clst != 0) {
dylancachan 0:6ce9c65992e5 1016 res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
dylancachan 0:6ce9c65992e5 1017 }
dylancachan 0:6ce9c65992e5 1018 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 1019 fs->last_clust = ncl; /* Update FSINFO */
dylancachan 0:6ce9c65992e5 1020 if (fs->free_clust != 0xFFFFFFFF) {
dylancachan 0:6ce9c65992e5 1021 fs->free_clust--;
dylancachan 0:6ce9c65992e5 1022 fs->fsi_flag = 1;
dylancachan 0:6ce9c65992e5 1023 }
dylancachan 0:6ce9c65992e5 1024 } else {
dylancachan 0:6ce9c65992e5 1025 ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
dylancachan 0:6ce9c65992e5 1026 }
dylancachan 0:6ce9c65992e5 1027
dylancachan 0:6ce9c65992e5 1028 return ncl; /* Return new cluster number or error code */
dylancachan 0:6ce9c65992e5 1029 }
dylancachan 0:6ce9c65992e5 1030 #endif /* !_FS_READONLY */
dylancachan 0:6ce9c65992e5 1031
dylancachan 0:6ce9c65992e5 1032
dylancachan 0:6ce9c65992e5 1033
dylancachan 0:6ce9c65992e5 1034 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1035 /* FAT handling - Convert offset into cluster with link map table */
dylancachan 0:6ce9c65992e5 1036 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1037
dylancachan 0:6ce9c65992e5 1038 #if _USE_FASTSEEK
dylancachan 0:6ce9c65992e5 1039 static
dylancachan 0:6ce9c65992e5 1040 DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
dylancachan 0:6ce9c65992e5 1041 FIL* fp, /* Pointer to the file object */
dylancachan 0:6ce9c65992e5 1042 DWORD ofs /* File offset to be converted to cluster# */
dylancachan 0:6ce9c65992e5 1043 )
dylancachan 0:6ce9c65992e5 1044 {
dylancachan 0:6ce9c65992e5 1045 DWORD cl, ncl, *tbl;
dylancachan 0:6ce9c65992e5 1046
dylancachan 0:6ce9c65992e5 1047
dylancachan 0:6ce9c65992e5 1048 tbl = fp->cltbl + 1; /* Top of CLMT */
dylancachan 0:6ce9c65992e5 1049 cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
dylancachan 0:6ce9c65992e5 1050 for (;;) {
dylancachan 0:6ce9c65992e5 1051 ncl = *tbl++; /* Number of cluters in the fragment */
dylancachan 0:6ce9c65992e5 1052 if (!ncl) return 0; /* End of table? (error) */
dylancachan 0:6ce9c65992e5 1053 if (cl < ncl) break; /* In this fragment? */
dylancachan 0:6ce9c65992e5 1054 cl -= ncl; tbl++; /* Next fragment */
dylancachan 0:6ce9c65992e5 1055 }
dylancachan 0:6ce9c65992e5 1056 return cl + *tbl; /* Return the cluster number */
dylancachan 0:6ce9c65992e5 1057 }
dylancachan 0:6ce9c65992e5 1058 #endif /* _USE_FASTSEEK */
dylancachan 0:6ce9c65992e5 1059
dylancachan 0:6ce9c65992e5 1060
dylancachan 0:6ce9c65992e5 1061
dylancachan 0:6ce9c65992e5 1062 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1063 /* Directory handling - Set directory index */
dylancachan 0:6ce9c65992e5 1064 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1065
dylancachan 0:6ce9c65992e5 1066 static
dylancachan 0:6ce9c65992e5 1067 FRESULT dir_sdi (
dylancachan 0:6ce9c65992e5 1068 FATFS_DIR *dj, /* Pointer to directory object */
dylancachan 0:6ce9c65992e5 1069 WORD idx /* Index of directory table */
dylancachan 0:6ce9c65992e5 1070 )
dylancachan 0:6ce9c65992e5 1071 {
dylancachan 0:6ce9c65992e5 1072 DWORD clst;
dylancachan 0:6ce9c65992e5 1073 WORD ic;
dylancachan 0:6ce9c65992e5 1074
dylancachan 0:6ce9c65992e5 1075
dylancachan 0:6ce9c65992e5 1076 dj->index = idx;
dylancachan 0:6ce9c65992e5 1077 clst = dj->sclust;
dylancachan 0:6ce9c65992e5 1078 if (clst == 1 || clst >= dj->fs->n_fatent) /* Check start cluster range */
dylancachan 0:6ce9c65992e5 1079 return FR_INT_ERR;
dylancachan 0:6ce9c65992e5 1080 if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
dylancachan 0:6ce9c65992e5 1081 clst = dj->fs->dirbase;
dylancachan 0:6ce9c65992e5 1082
dylancachan 0:6ce9c65992e5 1083 if (clst == 0) { /* Static table (root-dir in FAT12/16) */
dylancachan 0:6ce9c65992e5 1084 dj->clust = clst;
dylancachan 0:6ce9c65992e5 1085 if (idx >= dj->fs->n_rootdir) /* Index is out of range */
dylancachan 0:6ce9c65992e5 1086 return FR_INT_ERR;
dylancachan 0:6ce9c65992e5 1087 dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
dylancachan 0:6ce9c65992e5 1088 }
dylancachan 0:6ce9c65992e5 1089 else { /* Dynamic table (sub-dirs or root-dir in FAT32) */
dylancachan 0:6ce9c65992e5 1090 ic = SS(dj->fs) / SZ_DIR * dj->fs->csize; /* Entries per cluster */
dylancachan 0:6ce9c65992e5 1091 while (idx >= ic) { /* Follow cluster chain */
dylancachan 0:6ce9c65992e5 1092 clst = get_fat(dj->fs, clst); /* Get next cluster */
dylancachan 0:6ce9c65992e5 1093 if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
dylancachan 0:6ce9c65992e5 1094 if (clst < 2 || clst >= dj->fs->n_fatent) /* Reached to end of table or int error */
dylancachan 0:6ce9c65992e5 1095 return FR_INT_ERR;
dylancachan 0:6ce9c65992e5 1096 idx -= ic;
dylancachan 0:6ce9c65992e5 1097 }
dylancachan 0:6ce9c65992e5 1098 dj->clust = clst;
dylancachan 0:6ce9c65992e5 1099 dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
dylancachan 0:6ce9c65992e5 1100 }
dylancachan 0:6ce9c65992e5 1101
dylancachan 0:6ce9c65992e5 1102 dj->dir = dj->fs->win + (idx % (SS(dj->fs) / SZ_DIR)) * SZ_DIR; /* Ptr to the entry in the sector */
dylancachan 0:6ce9c65992e5 1103
dylancachan 0:6ce9c65992e5 1104 return FR_OK; /* Seek succeeded */
dylancachan 0:6ce9c65992e5 1105 }
dylancachan 0:6ce9c65992e5 1106
dylancachan 0:6ce9c65992e5 1107
dylancachan 0:6ce9c65992e5 1108
dylancachan 0:6ce9c65992e5 1109
dylancachan 0:6ce9c65992e5 1110 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1111 /* Directory handling - Move directory table index next */
dylancachan 0:6ce9c65992e5 1112 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1113
dylancachan 0:6ce9c65992e5 1114 static
dylancachan 0:6ce9c65992e5 1115 FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not stretch */
dylancachan 0:6ce9c65992e5 1116 FATFS_DIR *dj, /* Pointer to directory object */
dylancachan 0:6ce9c65992e5 1117 int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
dylancachan 0:6ce9c65992e5 1118 )
dylancachan 0:6ce9c65992e5 1119 {
dylancachan 0:6ce9c65992e5 1120 DWORD clst;
dylancachan 0:6ce9c65992e5 1121 WORD i;
dylancachan 0:6ce9c65992e5 1122
dylancachan 0:6ce9c65992e5 1123
dylancachan 0:6ce9c65992e5 1124 stretch = stretch; /* To suppress warning on read-only cfg. */
dylancachan 0:6ce9c65992e5 1125 i = dj->index + 1;
dylancachan 0:6ce9c65992e5 1126 if (!i || !dj->sect) /* Report EOT when index has reached 65535 */
dylancachan 0:6ce9c65992e5 1127 return FR_NO_FILE;
dylancachan 0:6ce9c65992e5 1128
dylancachan 0:6ce9c65992e5 1129 if (!(i % (SS(dj->fs) / SZ_DIR))) { /* Sector changed? */
dylancachan 0:6ce9c65992e5 1130 dj->sect++; /* Next sector */
dylancachan 0:6ce9c65992e5 1131
dylancachan 0:6ce9c65992e5 1132 if (dj->clust == 0) { /* Static table */
dylancachan 0:6ce9c65992e5 1133 if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */
dylancachan 0:6ce9c65992e5 1134 return FR_NO_FILE;
dylancachan 0:6ce9c65992e5 1135 }
dylancachan 0:6ce9c65992e5 1136 else { /* Dynamic table */
dylancachan 0:6ce9c65992e5 1137 if (((i / (SS(dj->fs) / SZ_DIR)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
dylancachan 0:6ce9c65992e5 1138 clst = get_fat(dj->fs, dj->clust); /* Get next cluster */
dylancachan 0:6ce9c65992e5 1139 if (clst <= 1) return FR_INT_ERR;
dylancachan 0:6ce9c65992e5 1140 if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 1141 if (clst >= dj->fs->n_fatent) { /* When it reached end of dynamic table */
dylancachan 0:6ce9c65992e5 1142 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 1143 BYTE c;
dylancachan 0:6ce9c65992e5 1144 if (!stretch) return FR_NO_FILE; /* When do not stretch, report EOT */
dylancachan 0:6ce9c65992e5 1145 clst = create_chain(dj->fs, dj->clust); /* Stretch cluster chain */
dylancachan 0:6ce9c65992e5 1146 if (clst == 0) return FR_DENIED; /* No free cluster */
dylancachan 0:6ce9c65992e5 1147 if (clst == 1) return FR_INT_ERR;
dylancachan 0:6ce9c65992e5 1148 if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 1149 /* Clean-up stretched table */
dylancachan 0:6ce9c65992e5 1150 if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */
dylancachan 0:6ce9c65992e5 1151 mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */
dylancachan 0:6ce9c65992e5 1152 dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */
dylancachan 0:6ce9c65992e5 1153 for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */
dylancachan 0:6ce9c65992e5 1154 dj->fs->wflag = 1;
dylancachan 0:6ce9c65992e5 1155 if (move_window(dj->fs, 0)) return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 1156 dj->fs->winsect++;
dylancachan 0:6ce9c65992e5 1157 }
dylancachan 0:6ce9c65992e5 1158 dj->fs->winsect -= c; /* Rewind window address */
dylancachan 0:6ce9c65992e5 1159 #else
dylancachan 0:6ce9c65992e5 1160 return FR_NO_FILE; /* Report EOT */
dylancachan 0:6ce9c65992e5 1161 #endif
dylancachan 0:6ce9c65992e5 1162 }
dylancachan 0:6ce9c65992e5 1163 dj->clust = clst; /* Initialize data for new cluster */
dylancachan 0:6ce9c65992e5 1164 dj->sect = clust2sect(dj->fs, clst);
dylancachan 0:6ce9c65992e5 1165 }
dylancachan 0:6ce9c65992e5 1166 }
dylancachan 0:6ce9c65992e5 1167 }
dylancachan 0:6ce9c65992e5 1168
dylancachan 0:6ce9c65992e5 1169 dj->index = i;
dylancachan 0:6ce9c65992e5 1170 dj->dir = dj->fs->win + (i % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;
dylancachan 0:6ce9c65992e5 1171
dylancachan 0:6ce9c65992e5 1172 return FR_OK;
dylancachan 0:6ce9c65992e5 1173 }
dylancachan 0:6ce9c65992e5 1174
dylancachan 0:6ce9c65992e5 1175
dylancachan 0:6ce9c65992e5 1176
dylancachan 0:6ce9c65992e5 1177
dylancachan 0:6ce9c65992e5 1178 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1179 /* Directory handling - Load/Store start cluster number */
dylancachan 0:6ce9c65992e5 1180 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1181
dylancachan 0:6ce9c65992e5 1182 static
dylancachan 0:6ce9c65992e5 1183 DWORD ld_clust (
dylancachan 0:6ce9c65992e5 1184 FATFS *fs, /* Pointer to the fs object */
dylancachan 0:6ce9c65992e5 1185 BYTE *dir /* Pointer to the directory entry */
dylancachan 0:6ce9c65992e5 1186 )
dylancachan 0:6ce9c65992e5 1187 {
dylancachan 0:6ce9c65992e5 1188 DWORD cl;
dylancachan 0:6ce9c65992e5 1189
dylancachan 0:6ce9c65992e5 1190 cl = LD_WORD(dir+DIR_FstClusLO);
dylancachan 0:6ce9c65992e5 1191 if (fs->fs_type == FS_FAT32)
dylancachan 0:6ce9c65992e5 1192 cl |= (DWORD)LD_WORD(dir+DIR_FstClusHI) << 16;
dylancachan 0:6ce9c65992e5 1193
dylancachan 0:6ce9c65992e5 1194 return cl;
dylancachan 0:6ce9c65992e5 1195 }
dylancachan 0:6ce9c65992e5 1196
dylancachan 0:6ce9c65992e5 1197
dylancachan 0:6ce9c65992e5 1198 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 1199 static
dylancachan 0:6ce9c65992e5 1200 void st_clust (
dylancachan 0:6ce9c65992e5 1201 BYTE *dir, /* Pointer to the directory entry */
dylancachan 0:6ce9c65992e5 1202 DWORD cl /* Value to be set */
dylancachan 0:6ce9c65992e5 1203 )
dylancachan 0:6ce9c65992e5 1204 {
dylancachan 0:6ce9c65992e5 1205 ST_WORD(dir+DIR_FstClusLO, cl);
dylancachan 0:6ce9c65992e5 1206 ST_WORD(dir+DIR_FstClusHI, cl >> 16);
dylancachan 0:6ce9c65992e5 1207 }
dylancachan 0:6ce9c65992e5 1208 #endif
dylancachan 0:6ce9c65992e5 1209
dylancachan 0:6ce9c65992e5 1210
dylancachan 0:6ce9c65992e5 1211
dylancachan 0:6ce9c65992e5 1212 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1213 /* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
dylancachan 0:6ce9c65992e5 1214 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1215 #if _USE_LFN
dylancachan 0:6ce9c65992e5 1216 static
dylancachan 0:6ce9c65992e5 1217 const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN chars in the directory entry */
dylancachan 0:6ce9c65992e5 1218
dylancachan 0:6ce9c65992e5 1219
dylancachan 0:6ce9c65992e5 1220 static
dylancachan 0:6ce9c65992e5 1221 int cmp_lfn ( /* 1:Matched, 0:Not matched */
dylancachan 0:6ce9c65992e5 1222 WCHAR *lfnbuf, /* Pointer to the LFN to be compared */
dylancachan 0:6ce9c65992e5 1223 BYTE *dir /* Pointer to the directory entry containing a part of LFN */
dylancachan 0:6ce9c65992e5 1224 )
dylancachan 0:6ce9c65992e5 1225 {
dylancachan 0:6ce9c65992e5 1226 UINT i, s;
dylancachan 0:6ce9c65992e5 1227 WCHAR wc, uc;
dylancachan 0:6ce9c65992e5 1228
dylancachan 0:6ce9c65992e5 1229
dylancachan 0:6ce9c65992e5 1230 i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
dylancachan 0:6ce9c65992e5 1231 s = 0; wc = 1;
dylancachan 0:6ce9c65992e5 1232 do {
dylancachan 0:6ce9c65992e5 1233 uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
dylancachan 0:6ce9c65992e5 1234 if (wc) { /* Last char has not been processed */
dylancachan 0:6ce9c65992e5 1235 wc = ff_wtoupper(uc); /* Convert it to upper case */
dylancachan 0:6ce9c65992e5 1236 if (i >= _MAX_LFN || wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
dylancachan 0:6ce9c65992e5 1237 return 0; /* Not matched */
dylancachan 0:6ce9c65992e5 1238 } else {
dylancachan 0:6ce9c65992e5 1239 if (uc != 0xFFFF) return 0; /* Check filler */
dylancachan 0:6ce9c65992e5 1240 }
dylancachan 0:6ce9c65992e5 1241 } while (++s < 13); /* Repeat until all chars in the entry are checked */
dylancachan 0:6ce9c65992e5 1242
dylancachan 0:6ce9c65992e5 1243 if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) /* Last segment matched but different length */
dylancachan 0:6ce9c65992e5 1244 return 0;
dylancachan 0:6ce9c65992e5 1245
dylancachan 0:6ce9c65992e5 1246 return 1; /* The part of LFN matched */
dylancachan 0:6ce9c65992e5 1247 }
dylancachan 0:6ce9c65992e5 1248
dylancachan 0:6ce9c65992e5 1249
dylancachan 0:6ce9c65992e5 1250
dylancachan 0:6ce9c65992e5 1251 static
dylancachan 0:6ce9c65992e5 1252 int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
dylancachan 0:6ce9c65992e5 1253 WCHAR *lfnbuf, /* Pointer to the Unicode-LFN buffer */
dylancachan 0:6ce9c65992e5 1254 BYTE *dir /* Pointer to the directory entry */
dylancachan 0:6ce9c65992e5 1255 )
dylancachan 0:6ce9c65992e5 1256 {
dylancachan 0:6ce9c65992e5 1257 UINT i, s;
dylancachan 0:6ce9c65992e5 1258 WCHAR wc, uc;
dylancachan 0:6ce9c65992e5 1259
dylancachan 0:6ce9c65992e5 1260
dylancachan 0:6ce9c65992e5 1261 i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
dylancachan 0:6ce9c65992e5 1262
dylancachan 0:6ce9c65992e5 1263 s = 0; wc = 1;
dylancachan 0:6ce9c65992e5 1264 do {
dylancachan 0:6ce9c65992e5 1265 uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
dylancachan 0:6ce9c65992e5 1266 if (wc) { /* Last char has not been processed */
dylancachan 0:6ce9c65992e5 1267 if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
dylancachan 0:6ce9c65992e5 1268 lfnbuf[i++] = wc = uc; /* Store it */
dylancachan 0:6ce9c65992e5 1269 } else {
dylancachan 0:6ce9c65992e5 1270 if (uc != 0xFFFF) return 0; /* Check filler */
dylancachan 0:6ce9c65992e5 1271 }
dylancachan 0:6ce9c65992e5 1272 } while (++s < 13); /* Read all character in the entry */
dylancachan 0:6ce9c65992e5 1273
dylancachan 0:6ce9c65992e5 1274 if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
dylancachan 0:6ce9c65992e5 1275 if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
dylancachan 0:6ce9c65992e5 1276 lfnbuf[i] = 0;
dylancachan 0:6ce9c65992e5 1277 }
dylancachan 0:6ce9c65992e5 1278
dylancachan 0:6ce9c65992e5 1279 return 1;
dylancachan 0:6ce9c65992e5 1280 }
dylancachan 0:6ce9c65992e5 1281
dylancachan 0:6ce9c65992e5 1282
dylancachan 0:6ce9c65992e5 1283 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 1284 static
dylancachan 0:6ce9c65992e5 1285 void fit_lfn (
dylancachan 0:6ce9c65992e5 1286 const WCHAR *lfnbuf, /* Pointer to the LFN buffer */
dylancachan 0:6ce9c65992e5 1287 BYTE *dir, /* Pointer to the directory entry */
dylancachan 0:6ce9c65992e5 1288 BYTE ord, /* LFN order (1-20) */
dylancachan 0:6ce9c65992e5 1289 BYTE sum /* SFN sum */
dylancachan 0:6ce9c65992e5 1290 )
dylancachan 0:6ce9c65992e5 1291 {
dylancachan 0:6ce9c65992e5 1292 UINT i, s;
dylancachan 0:6ce9c65992e5 1293 WCHAR wc;
dylancachan 0:6ce9c65992e5 1294
dylancachan 0:6ce9c65992e5 1295
dylancachan 0:6ce9c65992e5 1296 dir[LDIR_Chksum] = sum; /* Set check sum */
dylancachan 0:6ce9c65992e5 1297 dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
dylancachan 0:6ce9c65992e5 1298 dir[LDIR_Type] = 0;
dylancachan 0:6ce9c65992e5 1299 ST_WORD(dir+LDIR_FstClusLO, 0);
dylancachan 0:6ce9c65992e5 1300
dylancachan 0:6ce9c65992e5 1301 i = (ord - 1) * 13; /* Get offset in the LFN buffer */
dylancachan 0:6ce9c65992e5 1302 s = wc = 0;
dylancachan 0:6ce9c65992e5 1303 do {
dylancachan 0:6ce9c65992e5 1304 if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */
dylancachan 0:6ce9c65992e5 1305 ST_WORD(dir+LfnOfs[s], wc); /* Put it */
dylancachan 0:6ce9c65992e5 1306 if (!wc) wc = 0xFFFF; /* Padding chars following last char */
dylancachan 0:6ce9c65992e5 1307 } while (++s < 13);
dylancachan 0:6ce9c65992e5 1308 if (wc == 0xFFFF || !lfnbuf[i]) ord |= LLE; /* Bottom LFN part is the start of LFN sequence */
dylancachan 0:6ce9c65992e5 1309 dir[LDIR_Ord] = ord; /* Set the LFN order */
dylancachan 0:6ce9c65992e5 1310 }
dylancachan 0:6ce9c65992e5 1311
dylancachan 0:6ce9c65992e5 1312 #endif
dylancachan 0:6ce9c65992e5 1313 #endif
dylancachan 0:6ce9c65992e5 1314
dylancachan 0:6ce9c65992e5 1315
dylancachan 0:6ce9c65992e5 1316
dylancachan 0:6ce9c65992e5 1317 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1318 /* Create numbered name */
dylancachan 0:6ce9c65992e5 1319 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1320 #if _USE_LFN
dylancachan 0:6ce9c65992e5 1321 void gen_numname (
dylancachan 0:6ce9c65992e5 1322 BYTE *dst, /* Pointer to generated SFN */
dylancachan 0:6ce9c65992e5 1323 const BYTE *src, /* Pointer to source SFN to be modified */
dylancachan 0:6ce9c65992e5 1324 const WCHAR *lfn, /* Pointer to LFN */
dylancachan 0:6ce9c65992e5 1325 WORD seq /* Sequence number */
dylancachan 0:6ce9c65992e5 1326 )
dylancachan 0:6ce9c65992e5 1327 {
dylancachan 0:6ce9c65992e5 1328 BYTE ns[8], c;
dylancachan 0:6ce9c65992e5 1329 UINT i, j;
dylancachan 0:6ce9c65992e5 1330
dylancachan 0:6ce9c65992e5 1331
dylancachan 0:6ce9c65992e5 1332 mem_cpy(dst, src, 11);
dylancachan 0:6ce9c65992e5 1333
dylancachan 0:6ce9c65992e5 1334 if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
dylancachan 0:6ce9c65992e5 1335 do seq = (seq >> 1) + (seq << 15) + (WORD)*lfn++; while (*lfn);
dylancachan 0:6ce9c65992e5 1336 }
dylancachan 0:6ce9c65992e5 1337
dylancachan 0:6ce9c65992e5 1338 /* itoa (hexdecimal) */
dylancachan 0:6ce9c65992e5 1339 i = 7;
dylancachan 0:6ce9c65992e5 1340 do {
dylancachan 0:6ce9c65992e5 1341 c = (seq % 16) + '0';
dylancachan 0:6ce9c65992e5 1342 if (c > '9') c += 7;
dylancachan 0:6ce9c65992e5 1343 ns[i--] = c;
dylancachan 0:6ce9c65992e5 1344 seq /= 16;
dylancachan 0:6ce9c65992e5 1345 } while (seq);
dylancachan 0:6ce9c65992e5 1346 ns[i] = '~';
dylancachan 0:6ce9c65992e5 1347
dylancachan 0:6ce9c65992e5 1348 /* Append the number */
dylancachan 0:6ce9c65992e5 1349 for (j = 0; j < i && dst[j] != ' '; j++) {
dylancachan 0:6ce9c65992e5 1350 if (IsDBCS1(dst[j])) {
dylancachan 0:6ce9c65992e5 1351 if (j == i - 1) break;
dylancachan 0:6ce9c65992e5 1352 j++;
dylancachan 0:6ce9c65992e5 1353 }
dylancachan 0:6ce9c65992e5 1354 }
dylancachan 0:6ce9c65992e5 1355 do {
dylancachan 0:6ce9c65992e5 1356 dst[j++] = (i < 8) ? ns[i++] : ' ';
dylancachan 0:6ce9c65992e5 1357 } while (j < 8);
dylancachan 0:6ce9c65992e5 1358 }
dylancachan 0:6ce9c65992e5 1359 #endif
dylancachan 0:6ce9c65992e5 1360
dylancachan 0:6ce9c65992e5 1361
dylancachan 0:6ce9c65992e5 1362
dylancachan 0:6ce9c65992e5 1363
dylancachan 0:6ce9c65992e5 1364 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1365 /* Calculate sum of an SFN */
dylancachan 0:6ce9c65992e5 1366 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1367 #if _USE_LFN
dylancachan 0:6ce9c65992e5 1368 static
dylancachan 0:6ce9c65992e5 1369 BYTE sum_sfn (
dylancachan 0:6ce9c65992e5 1370 const BYTE *dir /* Ptr to directory entry */
dylancachan 0:6ce9c65992e5 1371 )
dylancachan 0:6ce9c65992e5 1372 {
dylancachan 0:6ce9c65992e5 1373 BYTE sum = 0;
dylancachan 0:6ce9c65992e5 1374 UINT n = 11;
dylancachan 0:6ce9c65992e5 1375
dylancachan 0:6ce9c65992e5 1376 do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
dylancachan 0:6ce9c65992e5 1377 return sum;
dylancachan 0:6ce9c65992e5 1378 }
dylancachan 0:6ce9c65992e5 1379 #endif
dylancachan 0:6ce9c65992e5 1380
dylancachan 0:6ce9c65992e5 1381
dylancachan 0:6ce9c65992e5 1382
dylancachan 0:6ce9c65992e5 1383
dylancachan 0:6ce9c65992e5 1384 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1385 /* Directory handling - Find an object in the directory */
dylancachan 0:6ce9c65992e5 1386 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1387
dylancachan 0:6ce9c65992e5 1388 static
dylancachan 0:6ce9c65992e5 1389 FRESULT dir_find (
dylancachan 0:6ce9c65992e5 1390 FATFS_DIR *dj /* Pointer to the directory object linked to the file name */
dylancachan 0:6ce9c65992e5 1391 )
dylancachan 0:6ce9c65992e5 1392 {
dylancachan 0:6ce9c65992e5 1393 FRESULT res;
dylancachan 0:6ce9c65992e5 1394 BYTE c, *dir;
dylancachan 0:6ce9c65992e5 1395 #if _USE_LFN
dylancachan 0:6ce9c65992e5 1396 BYTE a, ord, sum;
dylancachan 0:6ce9c65992e5 1397 #endif
dylancachan 0:6ce9c65992e5 1398
dylancachan 0:6ce9c65992e5 1399 res = dir_sdi(dj, 0); /* Rewind directory object */
dylancachan 0:6ce9c65992e5 1400 if (res != FR_OK) return res;
dylancachan 0:6ce9c65992e5 1401
dylancachan 0:6ce9c65992e5 1402 #if _USE_LFN
dylancachan 0:6ce9c65992e5 1403 ord = sum = 0xFF;
dylancachan 0:6ce9c65992e5 1404 #endif
dylancachan 0:6ce9c65992e5 1405 do {
dylancachan 0:6ce9c65992e5 1406 res = move_window(dj->fs, dj->sect);
dylancachan 0:6ce9c65992e5 1407 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 1408 dir = dj->dir; /* Ptr to the directory entry of current index */
dylancachan 0:6ce9c65992e5 1409 c = dir[DIR_Name];
dylancachan 0:6ce9c65992e5 1410 if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
dylancachan 0:6ce9c65992e5 1411 #if _USE_LFN /* LFN configuration */
dylancachan 0:6ce9c65992e5 1412 a = dir[DIR_Attr] & AM_MASK;
dylancachan 0:6ce9c65992e5 1413 if (c == DDE || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
dylancachan 0:6ce9c65992e5 1414 ord = 0xFF;
dylancachan 0:6ce9c65992e5 1415 } else {
dylancachan 0:6ce9c65992e5 1416 if (a == AM_LFN) { /* An LFN entry is found */
dylancachan 0:6ce9c65992e5 1417 if (dj->lfn) {
dylancachan 0:6ce9c65992e5 1418 if (c & LLE) { /* Is it start of LFN sequence? */
dylancachan 0:6ce9c65992e5 1419 sum = dir[LDIR_Chksum];
dylancachan 0:6ce9c65992e5 1420 c &= ~LLE; ord = c; /* LFN start order */
dylancachan 0:6ce9c65992e5 1421 dj->lfn_idx = dj->index;
dylancachan 0:6ce9c65992e5 1422 }
dylancachan 0:6ce9c65992e5 1423 /* Check validity of the LFN entry and compare it with given name */
dylancachan 0:6ce9c65992e5 1424 ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
dylancachan 0:6ce9c65992e5 1425 }
dylancachan 0:6ce9c65992e5 1426 } else { /* An SFN entry is found */
dylancachan 0:6ce9c65992e5 1427 if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
dylancachan 0:6ce9c65992e5 1428 ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */
dylancachan 0:6ce9c65992e5 1429 if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */
dylancachan 0:6ce9c65992e5 1430 }
dylancachan 0:6ce9c65992e5 1431 }
dylancachan 0:6ce9c65992e5 1432 #else /* Non LFN configuration */
dylancachan 0:6ce9c65992e5 1433 if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
dylancachan 0:6ce9c65992e5 1434 break;
dylancachan 0:6ce9c65992e5 1435 #endif
dylancachan 0:6ce9c65992e5 1436 res = dir_next(dj, 0); /* Next entry */
dylancachan 0:6ce9c65992e5 1437 } while (res == FR_OK);
dylancachan 0:6ce9c65992e5 1438
dylancachan 0:6ce9c65992e5 1439 return res;
dylancachan 0:6ce9c65992e5 1440 }
dylancachan 0:6ce9c65992e5 1441
dylancachan 0:6ce9c65992e5 1442
dylancachan 0:6ce9c65992e5 1443
dylancachan 0:6ce9c65992e5 1444
dylancachan 0:6ce9c65992e5 1445 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1446 /* Read an object from the directory */
dylancachan 0:6ce9c65992e5 1447 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1448 #if _FS_MINIMIZE <= 1
dylancachan 0:6ce9c65992e5 1449 static
dylancachan 0:6ce9c65992e5 1450 FRESULT dir_read (
dylancachan 0:6ce9c65992e5 1451 FATFS_DIR *dj /* Pointer to the directory object that pointing the entry to be read */
dylancachan 0:6ce9c65992e5 1452 )
dylancachan 0:6ce9c65992e5 1453 {
dylancachan 0:6ce9c65992e5 1454 FRESULT res;
dylancachan 0:6ce9c65992e5 1455 BYTE c, *dir;
dylancachan 0:6ce9c65992e5 1456 #if _USE_LFN
dylancachan 0:6ce9c65992e5 1457 BYTE a, ord = 0xFF, sum = 0xFF;
dylancachan 0:6ce9c65992e5 1458 #endif
dylancachan 0:6ce9c65992e5 1459
dylancachan 0:6ce9c65992e5 1460 res = FR_NO_FILE;
dylancachan 0:6ce9c65992e5 1461 while (dj->sect) {
dylancachan 0:6ce9c65992e5 1462 res = move_window(dj->fs, dj->sect);
dylancachan 0:6ce9c65992e5 1463 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 1464 dir = dj->dir; /* Ptr to the directory entry of current index */
dylancachan 0:6ce9c65992e5 1465 c = dir[DIR_Name];
dylancachan 0:6ce9c65992e5 1466 if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
dylancachan 0:6ce9c65992e5 1467 #if _USE_LFN /* LFN configuration */
dylancachan 0:6ce9c65992e5 1468 a = dir[DIR_Attr] & AM_MASK;
dylancachan 0:6ce9c65992e5 1469 if (c == DDE || (!_FS_RPATH && c == '.') || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
dylancachan 0:6ce9c65992e5 1470 ord = 0xFF;
dylancachan 0:6ce9c65992e5 1471 } else {
dylancachan 0:6ce9c65992e5 1472 if (a == AM_LFN) { /* An LFN entry is found */
dylancachan 0:6ce9c65992e5 1473 if (c & LLE) { /* Is it start of LFN sequence? */
dylancachan 0:6ce9c65992e5 1474 sum = dir[LDIR_Chksum];
dylancachan 0:6ce9c65992e5 1475 c &= ~LLE; ord = c;
dylancachan 0:6ce9c65992e5 1476 dj->lfn_idx = dj->index;
dylancachan 0:6ce9c65992e5 1477 }
dylancachan 0:6ce9c65992e5 1478 /* Check LFN validity and capture it */
dylancachan 0:6ce9c65992e5 1479 ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
dylancachan 0:6ce9c65992e5 1480 } else { /* An SFN entry is found */
dylancachan 0:6ce9c65992e5 1481 if (ord || sum != sum_sfn(dir)) /* Is there a valid LFN? */
dylancachan 0:6ce9c65992e5 1482 dj->lfn_idx = 0xFFFF; /* It has no LFN. */
dylancachan 0:6ce9c65992e5 1483 break;
dylancachan 0:6ce9c65992e5 1484 }
dylancachan 0:6ce9c65992e5 1485 }
dylancachan 0:6ce9c65992e5 1486 #else /* Non LFN configuration */
dylancachan 0:6ce9c65992e5 1487 if (c != DDE && (_FS_RPATH || c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
dylancachan 0:6ce9c65992e5 1488 break;
dylancachan 0:6ce9c65992e5 1489 #endif
dylancachan 0:6ce9c65992e5 1490 res = dir_next(dj, 0); /* Next entry */
dylancachan 0:6ce9c65992e5 1491 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 1492 }
dylancachan 0:6ce9c65992e5 1493
dylancachan 0:6ce9c65992e5 1494 if (res != FR_OK) dj->sect = 0;
dylancachan 0:6ce9c65992e5 1495
dylancachan 0:6ce9c65992e5 1496 return res;
dylancachan 0:6ce9c65992e5 1497 }
dylancachan 0:6ce9c65992e5 1498 #endif
dylancachan 0:6ce9c65992e5 1499
dylancachan 0:6ce9c65992e5 1500
dylancachan 0:6ce9c65992e5 1501
dylancachan 0:6ce9c65992e5 1502 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1503 /* Register an object to the directory */
dylancachan 0:6ce9c65992e5 1504 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1505 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 1506 static
dylancachan 0:6ce9c65992e5 1507 FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
dylancachan 0:6ce9c65992e5 1508 FATFS_DIR *dj /* Target directory with object name to be created */
dylancachan 0:6ce9c65992e5 1509 )
dylancachan 0:6ce9c65992e5 1510 {
dylancachan 0:6ce9c65992e5 1511 FRESULT res;
dylancachan 0:6ce9c65992e5 1512 BYTE c, *dir;
dylancachan 0:6ce9c65992e5 1513 #if _USE_LFN /* LFN configuration */
dylancachan 0:6ce9c65992e5 1514 WORD n, ne, is;
dylancachan 0:6ce9c65992e5 1515 BYTE sn[12], *fn, sum;
dylancachan 0:6ce9c65992e5 1516 WCHAR *lfn;
dylancachan 0:6ce9c65992e5 1517
dylancachan 0:6ce9c65992e5 1518
dylancachan 0:6ce9c65992e5 1519 fn = dj->fn; lfn = dj->lfn;
dylancachan 0:6ce9c65992e5 1520 mem_cpy(sn, fn, 12);
dylancachan 0:6ce9c65992e5 1521
dylancachan 0:6ce9c65992e5 1522 if (_FS_RPATH && (sn[NS] & NS_DOT)) /* Cannot create dot entry */
dylancachan 0:6ce9c65992e5 1523 return FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 1524
dylancachan 0:6ce9c65992e5 1525 if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
dylancachan 0:6ce9c65992e5 1526 fn[NS] = 0; dj->lfn = 0; /* Find only SFN */
dylancachan 0:6ce9c65992e5 1527 for (n = 1; n < 100; n++) {
dylancachan 0:6ce9c65992e5 1528 gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
dylancachan 0:6ce9c65992e5 1529 res = dir_find(dj); /* Check if the name collides with existing SFN */
dylancachan 0:6ce9c65992e5 1530 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 1531 }
dylancachan 0:6ce9c65992e5 1532 if (n == 100) return FR_DENIED; /* Abort if too many collisions */
dylancachan 0:6ce9c65992e5 1533 if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
dylancachan 0:6ce9c65992e5 1534 fn[NS] = sn[NS]; dj->lfn = lfn;
dylancachan 0:6ce9c65992e5 1535 }
dylancachan 0:6ce9c65992e5 1536
dylancachan 0:6ce9c65992e5 1537 if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve an SFN + LFN entries. */
dylancachan 0:6ce9c65992e5 1538 for (ne = 0; lfn[ne]; ne++) ;
dylancachan 0:6ce9c65992e5 1539 ne = (ne + 25) / 13;
dylancachan 0:6ce9c65992e5 1540 } else { /* Otherwise reserve only an SFN entry. */
dylancachan 0:6ce9c65992e5 1541 ne = 1;
dylancachan 0:6ce9c65992e5 1542 }
dylancachan 0:6ce9c65992e5 1543
dylancachan 0:6ce9c65992e5 1544 /* Reserve contiguous entries */
dylancachan 0:6ce9c65992e5 1545 res = dir_sdi(dj, 0);
dylancachan 0:6ce9c65992e5 1546 if (res != FR_OK) return res;
dylancachan 0:6ce9c65992e5 1547 n = is = 0;
dylancachan 0:6ce9c65992e5 1548 do {
dylancachan 0:6ce9c65992e5 1549 res = move_window(dj->fs, dj->sect);
dylancachan 0:6ce9c65992e5 1550 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 1551 c = *dj->dir; /* Check the entry status */
dylancachan 0:6ce9c65992e5 1552 if (c == DDE || c == 0) { /* Is it a blank entry? */
dylancachan 0:6ce9c65992e5 1553 if (n == 0) is = dj->index; /* First index of the contiguous entry */
dylancachan 0:6ce9c65992e5 1554 if (++n == ne) break; /* A contiguous entry that required count is found */
dylancachan 0:6ce9c65992e5 1555 } else {
dylancachan 0:6ce9c65992e5 1556 n = 0; /* Not a blank entry. Restart to search */
dylancachan 0:6ce9c65992e5 1557 }
dylancachan 0:6ce9c65992e5 1558 res = dir_next(dj, 1); /* Next entry with table stretch */
dylancachan 0:6ce9c65992e5 1559 } while (res == FR_OK);
dylancachan 0:6ce9c65992e5 1560
dylancachan 0:6ce9c65992e5 1561 if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */
dylancachan 0:6ce9c65992e5 1562 res = dir_sdi(dj, is);
dylancachan 0:6ce9c65992e5 1563 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 1564 sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */
dylancachan 0:6ce9c65992e5 1565 ne--;
dylancachan 0:6ce9c65992e5 1566 do { /* Store LFN entries in bottom first */
dylancachan 0:6ce9c65992e5 1567 res = move_window(dj->fs, dj->sect);
dylancachan 0:6ce9c65992e5 1568 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 1569 fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
dylancachan 0:6ce9c65992e5 1570 dj->fs->wflag = 1;
dylancachan 0:6ce9c65992e5 1571 res = dir_next(dj, 0); /* Next entry */
dylancachan 0:6ce9c65992e5 1572 } while (res == FR_OK && --ne);
dylancachan 0:6ce9c65992e5 1573 }
dylancachan 0:6ce9c65992e5 1574 }
dylancachan 0:6ce9c65992e5 1575
dylancachan 0:6ce9c65992e5 1576 #else /* Non LFN configuration */
dylancachan 0:6ce9c65992e5 1577 res = dir_sdi(dj, 0);
dylancachan 0:6ce9c65992e5 1578 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 1579 do { /* Find a blank entry for the SFN */
dylancachan 0:6ce9c65992e5 1580 res = move_window(dj->fs, dj->sect);
dylancachan 0:6ce9c65992e5 1581 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 1582 c = *dj->dir;
dylancachan 0:6ce9c65992e5 1583 if (c == DDE || c == 0) break; /* Is it a blank entry? */
dylancachan 0:6ce9c65992e5 1584 res = dir_next(dj, 1); /* Next entry with table stretch */
dylancachan 0:6ce9c65992e5 1585 } while (res == FR_OK);
dylancachan 0:6ce9c65992e5 1586 }
dylancachan 0:6ce9c65992e5 1587 #endif
dylancachan 0:6ce9c65992e5 1588
dylancachan 0:6ce9c65992e5 1589 if (res == FR_OK) { /* Initialize the SFN entry */
dylancachan 0:6ce9c65992e5 1590 res = move_window(dj->fs, dj->sect);
dylancachan 0:6ce9c65992e5 1591 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 1592 dir = dj->dir;
dylancachan 0:6ce9c65992e5 1593 mem_set(dir, 0, SZ_DIR); /* Clean the entry */
dylancachan 0:6ce9c65992e5 1594 mem_cpy(dir, dj->fn, 11); /* Put SFN */
dylancachan 0:6ce9c65992e5 1595 #if _USE_LFN
dylancachan 0:6ce9c65992e5 1596 dir[DIR_NTres] = *(dj->fn+NS) & (NS_BODY | NS_EXT); /* Put NT flag */
dylancachan 0:6ce9c65992e5 1597 #endif
dylancachan 0:6ce9c65992e5 1598 dj->fs->wflag = 1;
dylancachan 0:6ce9c65992e5 1599 }
dylancachan 0:6ce9c65992e5 1600 }
dylancachan 0:6ce9c65992e5 1601
dylancachan 0:6ce9c65992e5 1602 return res;
dylancachan 0:6ce9c65992e5 1603 }
dylancachan 0:6ce9c65992e5 1604 #endif /* !_FS_READONLY */
dylancachan 0:6ce9c65992e5 1605
dylancachan 0:6ce9c65992e5 1606
dylancachan 0:6ce9c65992e5 1607
dylancachan 0:6ce9c65992e5 1608
dylancachan 0:6ce9c65992e5 1609 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1610 /* Remove an object from the directory */
dylancachan 0:6ce9c65992e5 1611 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1612 #if !_FS_READONLY && !_FS_MINIMIZE
dylancachan 0:6ce9c65992e5 1613 static
dylancachan 0:6ce9c65992e5 1614 FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
dylancachan 0:6ce9c65992e5 1615 FATFS_DIR *dj /* Directory object pointing the entry to be removed */
dylancachan 0:6ce9c65992e5 1616 )
dylancachan 0:6ce9c65992e5 1617 {
dylancachan 0:6ce9c65992e5 1618 FRESULT res;
dylancachan 0:6ce9c65992e5 1619 #if _USE_LFN /* LFN configuration */
dylancachan 0:6ce9c65992e5 1620 WORD i;
dylancachan 0:6ce9c65992e5 1621
dylancachan 0:6ce9c65992e5 1622 i = dj->index; /* SFN index */
dylancachan 0:6ce9c65992e5 1623 res = dir_sdi(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */
dylancachan 0:6ce9c65992e5 1624 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 1625 do {
dylancachan 0:6ce9c65992e5 1626 res = move_window(dj->fs, dj->sect);
dylancachan 0:6ce9c65992e5 1627 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 1628 *dj->dir = DDE; /* Mark the entry "deleted" */
dylancachan 0:6ce9c65992e5 1629 dj->fs->wflag = 1;
dylancachan 0:6ce9c65992e5 1630 if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
dylancachan 0:6ce9c65992e5 1631 res = dir_next(dj, 0); /* Next entry */
dylancachan 0:6ce9c65992e5 1632 } while (res == FR_OK);
dylancachan 0:6ce9c65992e5 1633 if (res == FR_NO_FILE) res = FR_INT_ERR;
dylancachan 0:6ce9c65992e5 1634 }
dylancachan 0:6ce9c65992e5 1635
dylancachan 0:6ce9c65992e5 1636 #else /* Non LFN configuration */
dylancachan 0:6ce9c65992e5 1637 res = dir_sdi(dj, dj->index);
dylancachan 0:6ce9c65992e5 1638 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 1639 res = move_window(dj->fs, dj->sect);
dylancachan 0:6ce9c65992e5 1640 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 1641 *dj->dir = DDE; /* Mark the entry "deleted" */
dylancachan 0:6ce9c65992e5 1642 dj->fs->wflag = 1;
dylancachan 0:6ce9c65992e5 1643 }
dylancachan 0:6ce9c65992e5 1644 }
dylancachan 0:6ce9c65992e5 1645 #endif
dylancachan 0:6ce9c65992e5 1646
dylancachan 0:6ce9c65992e5 1647 return res;
dylancachan 0:6ce9c65992e5 1648 }
dylancachan 0:6ce9c65992e5 1649 #endif /* !_FS_READONLY */
dylancachan 0:6ce9c65992e5 1650
dylancachan 0:6ce9c65992e5 1651
dylancachan 0:6ce9c65992e5 1652
dylancachan 0:6ce9c65992e5 1653
dylancachan 0:6ce9c65992e5 1654 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1655 /* Pick a segment and create the object name in directory form */
dylancachan 0:6ce9c65992e5 1656 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1657
dylancachan 0:6ce9c65992e5 1658 static
dylancachan 0:6ce9c65992e5 1659 FRESULT create_name (
dylancachan 0:6ce9c65992e5 1660 FATFS_DIR *dj, /* Pointer to the directory object */
dylancachan 0:6ce9c65992e5 1661 const TCHAR **path /* Pointer to pointer to the segment in the path string */
dylancachan 0:6ce9c65992e5 1662 )
dylancachan 0:6ce9c65992e5 1663 {
dylancachan 0:6ce9c65992e5 1664 #ifdef _EXCVT
dylancachan 0:6ce9c65992e5 1665 static const BYTE excvt[] = _EXCVT; /* Upper conversion table for extended chars */
dylancachan 0:6ce9c65992e5 1666 #endif
dylancachan 0:6ce9c65992e5 1667
dylancachan 0:6ce9c65992e5 1668 #if _USE_LFN /* LFN configuration */
dylancachan 0:6ce9c65992e5 1669 BYTE b, cf;
dylancachan 0:6ce9c65992e5 1670 WCHAR w, *lfn;
dylancachan 0:6ce9c65992e5 1671 UINT i, ni, si, di;
dylancachan 0:6ce9c65992e5 1672 const TCHAR *p;
dylancachan 0:6ce9c65992e5 1673
dylancachan 0:6ce9c65992e5 1674 /* Create LFN in Unicode */
dylancachan 0:6ce9c65992e5 1675 for (p = *path; *p == '/' || *p == '\\'; p++) ; /* Strip duplicated separator */
dylancachan 0:6ce9c65992e5 1676 lfn = dj->lfn;
dylancachan 0:6ce9c65992e5 1677 si = di = 0;
dylancachan 0:6ce9c65992e5 1678 for (;;) {
dylancachan 0:6ce9c65992e5 1679 w = p[si++]; /* Get a character */
dylancachan 0:6ce9c65992e5 1680 if (w < ' ' || w == '/' || w == '\\') break; /* Break on end of segment */
dylancachan 0:6ce9c65992e5 1681 if (di >= _MAX_LFN) /* Reject too long name */
dylancachan 0:6ce9c65992e5 1682 return FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 1683 #if !_LFN_UNICODE
dylancachan 0:6ce9c65992e5 1684 w &= 0xFF;
dylancachan 0:6ce9c65992e5 1685 if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
dylancachan 0:6ce9c65992e5 1686 b = (BYTE)p[si++]; /* Get 2nd byte */
dylancachan 0:6ce9c65992e5 1687 if (!IsDBCS2(b))
dylancachan 0:6ce9c65992e5 1688 return FR_INVALID_NAME; /* Reject invalid sequence */
dylancachan 0:6ce9c65992e5 1689 w = (w << 8) + b; /* Create a DBC */
dylancachan 0:6ce9c65992e5 1690 }
dylancachan 0:6ce9c65992e5 1691 w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
dylancachan 0:6ce9c65992e5 1692 if (!w) return FR_INVALID_NAME; /* Reject invalid code */
dylancachan 0:6ce9c65992e5 1693 #endif
dylancachan 0:6ce9c65992e5 1694 if (w < 0x80 && chk_chr("\"*:<>\?|\x7F", w)) /* Reject illegal chars for LFN */
dylancachan 0:6ce9c65992e5 1695 return FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 1696 lfn[di++] = w; /* Store the Unicode char */
dylancachan 0:6ce9c65992e5 1697 }
dylancachan 0:6ce9c65992e5 1698 *path = &p[si]; /* Return pointer to the next segment */
dylancachan 0:6ce9c65992e5 1699 cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
dylancachan 0:6ce9c65992e5 1700 #if _FS_RPATH
dylancachan 0:6ce9c65992e5 1701 if ((di == 1 && lfn[di-1] == '.') || /* Is this a dot entry? */
dylancachan 0:6ce9c65992e5 1702 (di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
dylancachan 0:6ce9c65992e5 1703 lfn[di] = 0;
dylancachan 0:6ce9c65992e5 1704 for (i = 0; i < 11; i++)
dylancachan 0:6ce9c65992e5 1705 dj->fn[i] = (i < di) ? '.' : ' ';
dylancachan 0:6ce9c65992e5 1706 dj->fn[i] = cf | NS_DOT; /* This is a dot entry */
dylancachan 0:6ce9c65992e5 1707 return FR_OK;
dylancachan 0:6ce9c65992e5 1708 }
dylancachan 0:6ce9c65992e5 1709 #endif
dylancachan 0:6ce9c65992e5 1710 while (di) { /* Strip trailing spaces and dots */
dylancachan 0:6ce9c65992e5 1711 w = lfn[di-1];
dylancachan 0:6ce9c65992e5 1712 if (w != ' ' && w != '.') break;
dylancachan 0:6ce9c65992e5 1713 di--;
dylancachan 0:6ce9c65992e5 1714 }
dylancachan 0:6ce9c65992e5 1715 if (!di) return FR_INVALID_NAME; /* Reject nul string */
dylancachan 0:6ce9c65992e5 1716
dylancachan 0:6ce9c65992e5 1717 lfn[di] = 0; /* LFN is created */
dylancachan 0:6ce9c65992e5 1718
dylancachan 0:6ce9c65992e5 1719 /* Create SFN in directory form */
dylancachan 0:6ce9c65992e5 1720 mem_set(dj->fn, ' ', 11);
dylancachan 0:6ce9c65992e5 1721 for (si = 0; lfn[si] == ' ' || lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
dylancachan 0:6ce9c65992e5 1722 if (si) cf |= NS_LOSS | NS_LFN;
dylancachan 0:6ce9c65992e5 1723 while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
dylancachan 0:6ce9c65992e5 1724
dylancachan 0:6ce9c65992e5 1725 b = i = 0; ni = 8;
dylancachan 0:6ce9c65992e5 1726 for (;;) {
dylancachan 0:6ce9c65992e5 1727 w = lfn[si++]; /* Get an LFN char */
dylancachan 0:6ce9c65992e5 1728 if (!w) break; /* Break on end of the LFN */
dylancachan 0:6ce9c65992e5 1729 if (w == ' ' || (w == '.' && si != di)) { /* Remove spaces and dots */
dylancachan 0:6ce9c65992e5 1730 cf |= NS_LOSS | NS_LFN; continue;
dylancachan 0:6ce9c65992e5 1731 }
dylancachan 0:6ce9c65992e5 1732
dylancachan 0:6ce9c65992e5 1733 if (i >= ni || si == di) { /* Extension or end of SFN */
dylancachan 0:6ce9c65992e5 1734 if (ni == 11) { /* Long extension */
dylancachan 0:6ce9c65992e5 1735 cf |= NS_LOSS | NS_LFN; break;
dylancachan 0:6ce9c65992e5 1736 }
dylancachan 0:6ce9c65992e5 1737 if (si != di) cf |= NS_LOSS | NS_LFN; /* Out of 8.3 format */
dylancachan 0:6ce9c65992e5 1738 if (si > di) break; /* No extension */
dylancachan 0:6ce9c65992e5 1739 si = di; i = 8; ni = 11; /* Enter extension section */
dylancachan 0:6ce9c65992e5 1740 b <<= 2; continue;
dylancachan 0:6ce9c65992e5 1741 }
dylancachan 0:6ce9c65992e5 1742
dylancachan 0:6ce9c65992e5 1743 if (w >= 0x80) { /* Non ASCII char */
dylancachan 0:6ce9c65992e5 1744 #ifdef _EXCVT
dylancachan 0:6ce9c65992e5 1745 w = ff_convert(w, 0); /* Unicode -> OEM code */
dylancachan 0:6ce9c65992e5 1746 if (w) w = excvt[w - 0x80]; /* Convert extended char to upper (SBCS) */
dylancachan 0:6ce9c65992e5 1747 #else
dylancachan 0:6ce9c65992e5 1748 w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
dylancachan 0:6ce9c65992e5 1749 #endif
dylancachan 0:6ce9c65992e5 1750 cf |= NS_LFN; /* Force create LFN entry */
dylancachan 0:6ce9c65992e5 1751 }
dylancachan 0:6ce9c65992e5 1752
dylancachan 0:6ce9c65992e5 1753 if (_DF1S && w >= 0x100) { /* Double byte char (always false on SBCS cfg) */
dylancachan 0:6ce9c65992e5 1754 if (i >= ni - 1) {
dylancachan 0:6ce9c65992e5 1755 cf |= NS_LOSS | NS_LFN; i = ni; continue;
dylancachan 0:6ce9c65992e5 1756 }
dylancachan 0:6ce9c65992e5 1757 dj->fn[i++] = (BYTE)(w >> 8);
dylancachan 0:6ce9c65992e5 1758 } else { /* Single byte char */
dylancachan 0:6ce9c65992e5 1759 if (!w || chk_chr("+,;=[]", w)) { /* Replace illegal chars for SFN */
dylancachan 0:6ce9c65992e5 1760 w = '_'; cf |= NS_LOSS | NS_LFN;/* Lossy conversion */
dylancachan 0:6ce9c65992e5 1761 } else {
dylancachan 0:6ce9c65992e5 1762 if (IsUpper(w)) { /* ASCII large capital */
dylancachan 0:6ce9c65992e5 1763 b |= 2;
dylancachan 0:6ce9c65992e5 1764 } else {
dylancachan 0:6ce9c65992e5 1765 if (IsLower(w)) { /* ASCII small capital */
dylancachan 0:6ce9c65992e5 1766 b |= 1; w -= 0x20;
dylancachan 0:6ce9c65992e5 1767 }
dylancachan 0:6ce9c65992e5 1768 }
dylancachan 0:6ce9c65992e5 1769 }
dylancachan 0:6ce9c65992e5 1770 }
dylancachan 0:6ce9c65992e5 1771 dj->fn[i++] = (BYTE)w;
dylancachan 0:6ce9c65992e5 1772 }
dylancachan 0:6ce9c65992e5 1773
dylancachan 0:6ce9c65992e5 1774 if (dj->fn[0] == DDE) dj->fn[0] = NDDE; /* If the first char collides with deleted mark, replace it with 0x05 */
dylancachan 0:6ce9c65992e5 1775
dylancachan 0:6ce9c65992e5 1776 if (ni == 8) b <<= 2;
dylancachan 0:6ce9c65992e5 1777 if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
dylancachan 0:6ce9c65992e5 1778 cf |= NS_LFN;
dylancachan 0:6ce9c65992e5 1779 if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */
dylancachan 0:6ce9c65992e5 1780 if ((b & 0x03) == 0x01) cf |= NS_EXT; /* NT flag (Extension has only small capital) */
dylancachan 0:6ce9c65992e5 1781 if ((b & 0x0C) == 0x04) cf |= NS_BODY; /* NT flag (Filename has only small capital) */
dylancachan 0:6ce9c65992e5 1782 }
dylancachan 0:6ce9c65992e5 1783
dylancachan 0:6ce9c65992e5 1784 dj->fn[NS] = cf; /* SFN is created */
dylancachan 0:6ce9c65992e5 1785
dylancachan 0:6ce9c65992e5 1786 return FR_OK;
dylancachan 0:6ce9c65992e5 1787
dylancachan 0:6ce9c65992e5 1788
dylancachan 0:6ce9c65992e5 1789 #else /* Non-LFN configuration */
dylancachan 0:6ce9c65992e5 1790 BYTE b, c, d, *sfn;
dylancachan 0:6ce9c65992e5 1791 UINT ni, si, i;
dylancachan 0:6ce9c65992e5 1792 const char *p;
dylancachan 0:6ce9c65992e5 1793
dylancachan 0:6ce9c65992e5 1794 /* Create file name in directory form */
dylancachan 0:6ce9c65992e5 1795 for (p = *path; *p == '/' || *p == '\\'; p++) ; /* Strip duplicated separator */
dylancachan 0:6ce9c65992e5 1796 sfn = dj->fn;
dylancachan 0:6ce9c65992e5 1797 mem_set(sfn, ' ', 11);
dylancachan 0:6ce9c65992e5 1798 si = i = b = 0; ni = 8;
dylancachan 0:6ce9c65992e5 1799 #if _FS_RPATH
dylancachan 0:6ce9c65992e5 1800 if (p[si] == '.') { /* Is this a dot entry? */
dylancachan 0:6ce9c65992e5 1801 for (;;) {
dylancachan 0:6ce9c65992e5 1802 c = (BYTE)p[si++];
dylancachan 0:6ce9c65992e5 1803 if (c != '.' || si >= 3) break;
dylancachan 0:6ce9c65992e5 1804 sfn[i++] = c;
dylancachan 0:6ce9c65992e5 1805 }
dylancachan 0:6ce9c65992e5 1806 if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 1807 *path = &p[si]; /* Return pointer to the next segment */
dylancachan 0:6ce9c65992e5 1808 sfn[NS] = (c <= ' ') ? NS_LAST | NS_DOT : NS_DOT; /* Set last segment flag if end of path */
dylancachan 0:6ce9c65992e5 1809 return FR_OK;
dylancachan 0:6ce9c65992e5 1810 }
dylancachan 0:6ce9c65992e5 1811 #endif
dylancachan 0:6ce9c65992e5 1812 for (;;) {
dylancachan 0:6ce9c65992e5 1813 c = (BYTE)p[si++];
dylancachan 0:6ce9c65992e5 1814 if (c <= ' ' || c == '/' || c == '\\') break; /* Break on end of segment */
dylancachan 0:6ce9c65992e5 1815 if (c == '.' || i >= ni) {
dylancachan 0:6ce9c65992e5 1816 if (ni != 8 || c != '.') return FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 1817 i = 8; ni = 11;
dylancachan 0:6ce9c65992e5 1818 b <<= 2; continue;
dylancachan 0:6ce9c65992e5 1819 }
dylancachan 0:6ce9c65992e5 1820 if (c >= 0x80) { /* Extended char? */
dylancachan 0:6ce9c65992e5 1821 b |= 3; /* Eliminate NT flag */
dylancachan 0:6ce9c65992e5 1822 #ifdef _EXCVT
dylancachan 0:6ce9c65992e5 1823 c = excvt[c - 0x80]; /* Upper conversion (SBCS) */
dylancachan 0:6ce9c65992e5 1824 #else
dylancachan 0:6ce9c65992e5 1825 #if !_DF1S /* ASCII only cfg */
dylancachan 0:6ce9c65992e5 1826 return FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 1827 #endif
dylancachan 0:6ce9c65992e5 1828 #endif
dylancachan 0:6ce9c65992e5 1829 }
dylancachan 0:6ce9c65992e5 1830 if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
dylancachan 0:6ce9c65992e5 1831 d = (BYTE)p[si++]; /* Get 2nd byte */
dylancachan 0:6ce9c65992e5 1832 if (!IsDBCS2(d) || i >= ni - 1) /* Reject invalid DBC */
dylancachan 0:6ce9c65992e5 1833 return FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 1834 sfn[i++] = c;
dylancachan 0:6ce9c65992e5 1835 sfn[i++] = d;
dylancachan 0:6ce9c65992e5 1836 } else { /* Single byte code */
dylancachan 0:6ce9c65992e5 1837 if (chk_chr("\"*+,:;<=>\?[]|\x7F", c)) /* Reject illegal chrs for SFN */
dylancachan 0:6ce9c65992e5 1838 return FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 1839 if (IsUpper(c)) { /* ASCII large capital? */
dylancachan 0:6ce9c65992e5 1840 b |= 2;
dylancachan 0:6ce9c65992e5 1841 } else {
dylancachan 0:6ce9c65992e5 1842 if (IsLower(c)) { /* ASCII small capital? */
dylancachan 0:6ce9c65992e5 1843 b |= 1; c -= 0x20;
dylancachan 0:6ce9c65992e5 1844 }
dylancachan 0:6ce9c65992e5 1845 }
dylancachan 0:6ce9c65992e5 1846 sfn[i++] = c;
dylancachan 0:6ce9c65992e5 1847 }
dylancachan 0:6ce9c65992e5 1848 }
dylancachan 0:6ce9c65992e5 1849 *path = &p[si]; /* Return pointer to the next segment */
dylancachan 0:6ce9c65992e5 1850 c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
dylancachan 0:6ce9c65992e5 1851
dylancachan 0:6ce9c65992e5 1852 if (!i) return FR_INVALID_NAME; /* Reject nul string */
dylancachan 0:6ce9c65992e5 1853 if (sfn[0] == DDE) sfn[0] = NDDE; /* When first char collides with DDE, replace it with 0x05 */
dylancachan 0:6ce9c65992e5 1854
dylancachan 0:6ce9c65992e5 1855 if (ni == 8) b <<= 2;
dylancachan 0:6ce9c65992e5 1856 if ((b & 0x03) == 0x01) c |= NS_EXT; /* NT flag (Name extension has only small capital) */
dylancachan 0:6ce9c65992e5 1857 if ((b & 0x0C) == 0x04) c |= NS_BODY; /* NT flag (Name body has only small capital) */
dylancachan 0:6ce9c65992e5 1858
dylancachan 0:6ce9c65992e5 1859 sfn[NS] = c; /* Store NT flag, File name is created */
dylancachan 0:6ce9c65992e5 1860
dylancachan 0:6ce9c65992e5 1861 return FR_OK;
dylancachan 0:6ce9c65992e5 1862 #endif
dylancachan 0:6ce9c65992e5 1863 }
dylancachan 0:6ce9c65992e5 1864
dylancachan 0:6ce9c65992e5 1865
dylancachan 0:6ce9c65992e5 1866
dylancachan 0:6ce9c65992e5 1867
dylancachan 0:6ce9c65992e5 1868 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1869 /* Get file information from directory entry */
dylancachan 0:6ce9c65992e5 1870 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1871 #if _FS_MINIMIZE <= 1
dylancachan 0:6ce9c65992e5 1872 static
dylancachan 0:6ce9c65992e5 1873 void get_fileinfo ( /* No return code */
dylancachan 0:6ce9c65992e5 1874 FATFS_DIR *dj, /* Pointer to the directory object */
dylancachan 0:6ce9c65992e5 1875 FILINFO *fno /* Pointer to the file information to be filled */
dylancachan 0:6ce9c65992e5 1876 )
dylancachan 0:6ce9c65992e5 1877 {
dylancachan 0:6ce9c65992e5 1878 UINT i;
dylancachan 0:6ce9c65992e5 1879 BYTE nt, *dir;
dylancachan 0:6ce9c65992e5 1880 TCHAR *p, c;
dylancachan 0:6ce9c65992e5 1881
dylancachan 0:6ce9c65992e5 1882
dylancachan 0:6ce9c65992e5 1883 p = fno->fname;
dylancachan 0:6ce9c65992e5 1884 if (dj->sect) {
dylancachan 0:6ce9c65992e5 1885 dir = dj->dir;
dylancachan 0:6ce9c65992e5 1886 nt = dir[DIR_NTres]; /* NT flag */
dylancachan 0:6ce9c65992e5 1887 for (i = 0; i < 8; i++) { /* Copy name body */
dylancachan 0:6ce9c65992e5 1888 c = dir[i];
dylancachan 0:6ce9c65992e5 1889 if (c == ' ') break;
dylancachan 0:6ce9c65992e5 1890 if (c == NDDE) c = (TCHAR)DDE;
dylancachan 0:6ce9c65992e5 1891 if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
dylancachan 0:6ce9c65992e5 1892 #if _LFN_UNICODE
dylancachan 0:6ce9c65992e5 1893 if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i+1]))
dylancachan 0:6ce9c65992e5 1894 c = (c << 8) | dir[++i];
dylancachan 0:6ce9c65992e5 1895 c = ff_convert(c, 1);
dylancachan 0:6ce9c65992e5 1896 if (!c) c = '?';
dylancachan 0:6ce9c65992e5 1897 #endif
dylancachan 0:6ce9c65992e5 1898 *p++ = c;
dylancachan 0:6ce9c65992e5 1899 }
dylancachan 0:6ce9c65992e5 1900 if (dir[8] != ' ') { /* Copy name extension */
dylancachan 0:6ce9c65992e5 1901 *p++ = '.';
dylancachan 0:6ce9c65992e5 1902 for (i = 8; i < 11; i++) {
dylancachan 0:6ce9c65992e5 1903 c = dir[i];
dylancachan 0:6ce9c65992e5 1904 if (c == ' ') break;
dylancachan 0:6ce9c65992e5 1905 if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
dylancachan 0:6ce9c65992e5 1906 #if _LFN_UNICODE
dylancachan 0:6ce9c65992e5 1907 if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i+1]))
dylancachan 0:6ce9c65992e5 1908 c = (c << 8) | dir[++i];
dylancachan 0:6ce9c65992e5 1909 c = ff_convert(c, 1);
dylancachan 0:6ce9c65992e5 1910 if (!c) c = '?';
dylancachan 0:6ce9c65992e5 1911 #endif
dylancachan 0:6ce9c65992e5 1912 *p++ = c;
dylancachan 0:6ce9c65992e5 1913 }
dylancachan 0:6ce9c65992e5 1914 }
dylancachan 0:6ce9c65992e5 1915 fno->fattrib = dir[DIR_Attr]; /* Attribute */
dylancachan 0:6ce9c65992e5 1916 fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
dylancachan 0:6ce9c65992e5 1917 fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
dylancachan 0:6ce9c65992e5 1918 fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
dylancachan 0:6ce9c65992e5 1919 }
dylancachan 0:6ce9c65992e5 1920 *p = 0; /* Terminate SFN str by a \0 */
dylancachan 0:6ce9c65992e5 1921
dylancachan 0:6ce9c65992e5 1922 #if _USE_LFN
dylancachan 0:6ce9c65992e5 1923 if (fno->lfname && fno->lfsize) {
dylancachan 0:6ce9c65992e5 1924 TCHAR *tp = fno->lfname;
dylancachan 0:6ce9c65992e5 1925 WCHAR w, *lfn;
dylancachan 0:6ce9c65992e5 1926
dylancachan 0:6ce9c65992e5 1927 i = 0;
dylancachan 0:6ce9c65992e5 1928 if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
dylancachan 0:6ce9c65992e5 1929 lfn = dj->lfn;
dylancachan 0:6ce9c65992e5 1930 while ((w = *lfn++) != 0) { /* Get an LFN char */
dylancachan 0:6ce9c65992e5 1931 #if !_LFN_UNICODE
dylancachan 0:6ce9c65992e5 1932 w = ff_convert(w, 0); /* Unicode -> OEM conversion */
dylancachan 0:6ce9c65992e5 1933 if (!w) { i = 0; break; } /* Could not convert, no LFN */
dylancachan 0:6ce9c65992e5 1934 if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
dylancachan 0:6ce9c65992e5 1935 tp[i++] = (TCHAR)(w >> 8);
dylancachan 0:6ce9c65992e5 1936 #endif
dylancachan 0:6ce9c65992e5 1937 if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overflow, no LFN */
dylancachan 0:6ce9c65992e5 1938 tp[i++] = (TCHAR)w;
dylancachan 0:6ce9c65992e5 1939 }
dylancachan 0:6ce9c65992e5 1940 }
dylancachan 0:6ce9c65992e5 1941 tp[i] = 0; /* Terminate the LFN str by a \0 */
dylancachan 0:6ce9c65992e5 1942 }
dylancachan 0:6ce9c65992e5 1943 #endif
dylancachan 0:6ce9c65992e5 1944 }
dylancachan 0:6ce9c65992e5 1945 #endif /* _FS_MINIMIZE <= 1 */
dylancachan 0:6ce9c65992e5 1946
dylancachan 0:6ce9c65992e5 1947
dylancachan 0:6ce9c65992e5 1948
dylancachan 0:6ce9c65992e5 1949
dylancachan 0:6ce9c65992e5 1950 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1951 /* Follow a file path */
dylancachan 0:6ce9c65992e5 1952 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 1953
dylancachan 0:6ce9c65992e5 1954 static
dylancachan 0:6ce9c65992e5 1955 FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
dylancachan 0:6ce9c65992e5 1956 FATFS_DIR *dj, /* Directory object to return last directory and found object */
dylancachan 0:6ce9c65992e5 1957 const TCHAR *path /* Full-path string to find a file or directory */
dylancachan 0:6ce9c65992e5 1958 )
dylancachan 0:6ce9c65992e5 1959 {
dylancachan 0:6ce9c65992e5 1960 FRESULT res;
dylancachan 0:6ce9c65992e5 1961 BYTE *dir, ns;
dylancachan 0:6ce9c65992e5 1962
dylancachan 0:6ce9c65992e5 1963
dylancachan 0:6ce9c65992e5 1964 #if _FS_RPATH
dylancachan 0:6ce9c65992e5 1965 if (*path == '/' || *path == '\\') { /* There is a heading separator */
dylancachan 0:6ce9c65992e5 1966 path++; dj->sclust = 0; /* Strip it and start from the root dir */
dylancachan 0:6ce9c65992e5 1967 } else { /* No heading separator */
dylancachan 0:6ce9c65992e5 1968 dj->sclust = dj->fs->cdir; /* Start from the current dir */
dylancachan 0:6ce9c65992e5 1969 }
dylancachan 0:6ce9c65992e5 1970 #else
dylancachan 0:6ce9c65992e5 1971 if (*path == '/' || *path == '\\') /* Strip heading separator if exist */
dylancachan 0:6ce9c65992e5 1972 path++;
dylancachan 0:6ce9c65992e5 1973 dj->sclust = 0; /* Start from the root dir */
dylancachan 0:6ce9c65992e5 1974 #endif
dylancachan 0:6ce9c65992e5 1975
dylancachan 0:6ce9c65992e5 1976 if ((UINT)*path < ' ') { /* Nul path means the start directory itself */
dylancachan 0:6ce9c65992e5 1977 res = dir_sdi(dj, 0);
dylancachan 0:6ce9c65992e5 1978 dj->dir = 0;
dylancachan 0:6ce9c65992e5 1979 } else { /* Follow path */
dylancachan 0:6ce9c65992e5 1980 for (;;) {
dylancachan 0:6ce9c65992e5 1981 res = create_name(dj, &path); /* Get a segment */
dylancachan 0:6ce9c65992e5 1982 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 1983 res = dir_find(dj); /* Find it */
dylancachan 0:6ce9c65992e5 1984 ns = *(dj->fn+NS);
dylancachan 0:6ce9c65992e5 1985 if (res != FR_OK) { /* Failed to find the object */
dylancachan 0:6ce9c65992e5 1986 if (res != FR_NO_FILE) break; /* Abort if any hard error occurred */
dylancachan 0:6ce9c65992e5 1987 /* Object not found */
dylancachan 0:6ce9c65992e5 1988 if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exit */
dylancachan 0:6ce9c65992e5 1989 dj->sclust = 0; dj->dir = 0; /* It is the root dir */
dylancachan 0:6ce9c65992e5 1990 res = FR_OK;
dylancachan 0:6ce9c65992e5 1991 if (!(ns & NS_LAST)) continue;
dylancachan 0:6ce9c65992e5 1992 } else { /* Could not find the object */
dylancachan 0:6ce9c65992e5 1993 if (!(ns & NS_LAST)) res = FR_NO_PATH;
dylancachan 0:6ce9c65992e5 1994 }
dylancachan 0:6ce9c65992e5 1995 break;
dylancachan 0:6ce9c65992e5 1996 }
dylancachan 0:6ce9c65992e5 1997 if (ns & NS_LAST) break; /* Last segment match. Function completed. */
dylancachan 0:6ce9c65992e5 1998 dir = dj->dir; /* There is next segment. Follow the sub directory */
dylancachan 0:6ce9c65992e5 1999 if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
dylancachan 0:6ce9c65992e5 2000 res = FR_NO_PATH; break;
dylancachan 0:6ce9c65992e5 2001 }
dylancachan 0:6ce9c65992e5 2002 dj->sclust = ld_clust(dj->fs, dir);
dylancachan 0:6ce9c65992e5 2003 }
dylancachan 0:6ce9c65992e5 2004 }
dylancachan 0:6ce9c65992e5 2005
dylancachan 0:6ce9c65992e5 2006 return res;
dylancachan 0:6ce9c65992e5 2007 }
dylancachan 0:6ce9c65992e5 2008
dylancachan 0:6ce9c65992e5 2009
dylancachan 0:6ce9c65992e5 2010
dylancachan 0:6ce9c65992e5 2011
dylancachan 0:6ce9c65992e5 2012 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2013 /* Load a sector and check if it is an FAT Volume Boot Record */
dylancachan 0:6ce9c65992e5 2014 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2015
dylancachan 0:6ce9c65992e5 2016 static
dylancachan 0:6ce9c65992e5 2017 BYTE check_fs ( /* 0:FAT-VBR, 1:Any BR but not FAT, 2:Not a BR, 3:Disk error */
dylancachan 0:6ce9c65992e5 2018 FATFS *fs, /* File system object */
dylancachan 0:6ce9c65992e5 2019 DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
dylancachan 0:6ce9c65992e5 2020 )
dylancachan 0:6ce9c65992e5 2021 {
dylancachan 0:6ce9c65992e5 2022 if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK) /* Load boot record */
dylancachan 0:6ce9c65992e5 2023 return 3;
dylancachan 0:6ce9c65992e5 2024 if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
dylancachan 0:6ce9c65992e5 2025 return 2;
dylancachan 0:6ce9c65992e5 2026
dylancachan 0:6ce9c65992e5 2027 if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
dylancachan 0:6ce9c65992e5 2028 return 0;
dylancachan 0:6ce9c65992e5 2029 if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
dylancachan 0:6ce9c65992e5 2030 return 0;
dylancachan 0:6ce9c65992e5 2031
dylancachan 0:6ce9c65992e5 2032 return 1;
dylancachan 0:6ce9c65992e5 2033 }
dylancachan 0:6ce9c65992e5 2034
dylancachan 0:6ce9c65992e5 2035
dylancachan 0:6ce9c65992e5 2036
dylancachan 0:6ce9c65992e5 2037
dylancachan 0:6ce9c65992e5 2038 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2039 /* Check if the file system object is valid or not */
dylancachan 0:6ce9c65992e5 2040 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2041
dylancachan 0:6ce9c65992e5 2042 static
dylancachan 0:6ce9c65992e5 2043 FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occurred */
dylancachan 0:6ce9c65992e5 2044 const TCHAR **path, /* Pointer to pointer to the path name (drive number) */
dylancachan 0:6ce9c65992e5 2045 FATFS **rfs, /* Pointer to pointer to the found file system object */
dylancachan 0:6ce9c65992e5 2046 BYTE wmode /* !=0: Check write protection for write access */
dylancachan 0:6ce9c65992e5 2047 )
dylancachan 0:6ce9c65992e5 2048 {
dylancachan 0:6ce9c65992e5 2049 BYTE fmt, b, pi, *tbl;
dylancachan 0:6ce9c65992e5 2050 UINT vol;
dylancachan 0:6ce9c65992e5 2051 DSTATUS stat;
dylancachan 0:6ce9c65992e5 2052 DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
dylancachan 0:6ce9c65992e5 2053 WORD nrsv;
dylancachan 0:6ce9c65992e5 2054 const TCHAR *p = *path;
dylancachan 0:6ce9c65992e5 2055 FATFS *fs;
dylancachan 0:6ce9c65992e5 2056
dylancachan 0:6ce9c65992e5 2057
dylancachan 0:6ce9c65992e5 2058 /* Get logical drive number from the path name */
dylancachan 0:6ce9c65992e5 2059 vol = p[0] - '0'; /* Is there a drive number? */
dylancachan 0:6ce9c65992e5 2060 if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */
dylancachan 0:6ce9c65992e5 2061 p += 2; *path = p; /* Return pointer to the path name */
dylancachan 0:6ce9c65992e5 2062 } else { /* No drive number is given */
dylancachan 0:6ce9c65992e5 2063 #if _FS_RPATH
dylancachan 0:6ce9c65992e5 2064 vol = CurrVol; /* Use current drive */
dylancachan 0:6ce9c65992e5 2065 #else
dylancachan 0:6ce9c65992e5 2066 vol = 0; /* Use drive 0 */
dylancachan 0:6ce9c65992e5 2067 #endif
dylancachan 0:6ce9c65992e5 2068 }
dylancachan 0:6ce9c65992e5 2069
dylancachan 0:6ce9c65992e5 2070 /* Check if the file system object is valid or not */
dylancachan 0:6ce9c65992e5 2071 *rfs = 0;
dylancachan 0:6ce9c65992e5 2072 if (vol >= _VOLUMES) /* Is the drive number valid? */
dylancachan 0:6ce9c65992e5 2073 return FR_INVALID_DRIVE;
dylancachan 0:6ce9c65992e5 2074 fs = FatFs[vol]; /* Get corresponding file system object */
dylancachan 0:6ce9c65992e5 2075 if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
dylancachan 0:6ce9c65992e5 2076
dylancachan 0:6ce9c65992e5 2077 ENTER_FF(fs); /* Lock file system */
dylancachan 0:6ce9c65992e5 2078
dylancachan 0:6ce9c65992e5 2079 *rfs = fs; /* Return pointer to the corresponding file system object */
dylancachan 0:6ce9c65992e5 2080 if (fs->fs_type) { /* If the volume has been mounted */
dylancachan 0:6ce9c65992e5 2081 stat = disk_status(fs->drv);
dylancachan 0:6ce9c65992e5 2082 if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */
dylancachan 0:6ce9c65992e5 2083 if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
dylancachan 0:6ce9c65992e5 2084 return FR_WRITE_PROTECTED;
dylancachan 0:6ce9c65992e5 2085 return FR_OK; /* The file system object is valid */
dylancachan 0:6ce9c65992e5 2086 }
dylancachan 0:6ce9c65992e5 2087 }
dylancachan 0:6ce9c65992e5 2088
dylancachan 0:6ce9c65992e5 2089 /* The file system object is not valid. */
dylancachan 0:6ce9c65992e5 2090 /* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
dylancachan 0:6ce9c65992e5 2091
dylancachan 0:6ce9c65992e5 2092 fs->fs_type = 0; /* Clear the file system object */
dylancachan 0:6ce9c65992e5 2093 fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
dylancachan 0:6ce9c65992e5 2094 stat = disk_initialize(fs->drv); /* Initialize the physical drive */
dylancachan 0:6ce9c65992e5 2095 if (stat & STA_NOINIT) /* Check if the initialization succeeded */
dylancachan 0:6ce9c65992e5 2096 return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
dylancachan 0:6ce9c65992e5 2097 if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
dylancachan 0:6ce9c65992e5 2098 return FR_WRITE_PROTECTED;
dylancachan 0:6ce9c65992e5 2099 #if _MAX_SS != 512 /* Get disk sector size (variable sector size cfg only) */
dylancachan 0:6ce9c65992e5 2100 if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
dylancachan 0:6ce9c65992e5 2101 return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 2102 #endif
dylancachan 0:6ce9c65992e5 2103 /* Search FAT partition on the drive. Supports only generic partitions, FDISK and SFD. */
dylancachan 0:6ce9c65992e5 2104 fmt = check_fs(fs, bsect = 0); /* Load sector 0 and check if it is an FAT-VBR (in SFD) */
dylancachan 0:6ce9c65992e5 2105 if (LD2PT(vol) && !fmt) fmt = 1; /* Force non-SFD if the volume is forced partition */
dylancachan 0:6ce9c65992e5 2106 if (fmt == 1) { /* Not an FAT-VBR, the physical drive can be partitioned */
dylancachan 0:6ce9c65992e5 2107 /* Check the partition listed in the partition table */
dylancachan 0:6ce9c65992e5 2108 pi = LD2PT(vol);
dylancachan 0:6ce9c65992e5 2109 if (pi) pi--;
dylancachan 0:6ce9c65992e5 2110 tbl = &fs->win[MBR_Table + pi * SZ_PTE];/* Partition table */
dylancachan 0:6ce9c65992e5 2111 if (tbl[4]) { /* Is the partition existing? */
dylancachan 0:6ce9c65992e5 2112 bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
dylancachan 0:6ce9c65992e5 2113 fmt = check_fs(fs, bsect); /* Check the partition */
dylancachan 0:6ce9c65992e5 2114 }
dylancachan 0:6ce9c65992e5 2115 }
dylancachan 0:6ce9c65992e5 2116 if (fmt == 3) return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 2117 if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
dylancachan 0:6ce9c65992e5 2118
dylancachan 0:6ce9c65992e5 2119 /* An FAT volume is found. Following code initializes the file system object */
dylancachan 0:6ce9c65992e5 2120
dylancachan 0:6ce9c65992e5 2121 if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
dylancachan 0:6ce9c65992e5 2122 return FR_NO_FILESYSTEM;
dylancachan 0:6ce9c65992e5 2123
dylancachan 0:6ce9c65992e5 2124 fasize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */
dylancachan 0:6ce9c65992e5 2125 if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32);
dylancachan 0:6ce9c65992e5 2126 fs->fsize = fasize;
dylancachan 0:6ce9c65992e5 2127
dylancachan 0:6ce9c65992e5 2128 fs->n_fats = b = fs->win[BPB_NumFATs]; /* Number of FAT copies */
dylancachan 0:6ce9c65992e5 2129 if (b != 1 && b != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
dylancachan 0:6ce9c65992e5 2130 fasize *= b; /* Number of sectors for FAT area */
dylancachan 0:6ce9c65992e5 2131
dylancachan 0:6ce9c65992e5 2132 fs->csize = b = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
dylancachan 0:6ce9c65992e5 2133 if (!b || (b & (b - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
dylancachan 0:6ce9c65992e5 2134
dylancachan 0:6ce9c65992e5 2135 fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Number of root directory entries */
dylancachan 0:6ce9c65992e5 2136 if (fs->n_rootdir % (SS(fs) / SZ_DIR)) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be sector aligned) */
dylancachan 0:6ce9c65992e5 2137
dylancachan 0:6ce9c65992e5 2138 tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */
dylancachan 0:6ce9c65992e5 2139 if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
dylancachan 0:6ce9c65992e5 2140
dylancachan 0:6ce9c65992e5 2141 nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt); /* Number of reserved sectors */
dylancachan 0:6ce9c65992e5 2142 if (!nrsv) return FR_NO_FILESYSTEM; /* (BPB_RsvdSecCnt must not be 0) */
dylancachan 0:6ce9c65992e5 2143
dylancachan 0:6ce9c65992e5 2144 /* Determine the FAT sub type */
dylancachan 0:6ce9c65992e5 2145 sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR); /* RSV+FAT+DIR */
dylancachan 0:6ce9c65992e5 2146 if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
dylancachan 0:6ce9c65992e5 2147 nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
dylancachan 0:6ce9c65992e5 2148 if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
dylancachan 0:6ce9c65992e5 2149 fmt = FS_FAT12;
dylancachan 0:6ce9c65992e5 2150 if (nclst >= MIN_FAT16) fmt = FS_FAT16;
dylancachan 0:6ce9c65992e5 2151 if (nclst >= MIN_FAT32) fmt = FS_FAT32;
dylancachan 0:6ce9c65992e5 2152
dylancachan 0:6ce9c65992e5 2153 /* Boundaries and Limits */
dylancachan 0:6ce9c65992e5 2154 fs->n_fatent = nclst + 2; /* Number of FAT entries */
dylancachan 0:6ce9c65992e5 2155 fs->database = bsect + sysect; /* Data start sector */
dylancachan 0:6ce9c65992e5 2156 fs->fatbase = bsect + nrsv; /* FAT start sector */
dylancachan 0:6ce9c65992e5 2157 if (fmt == FS_FAT32) {
dylancachan 0:6ce9c65992e5 2158 if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
dylancachan 0:6ce9c65992e5 2159 fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
dylancachan 0:6ce9c65992e5 2160 szbfat = fs->n_fatent * 4; /* (Required FAT size) */
dylancachan 0:6ce9c65992e5 2161 } else {
dylancachan 0:6ce9c65992e5 2162 if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
dylancachan 0:6ce9c65992e5 2163 fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
dylancachan 0:6ce9c65992e5 2164 szbfat = (fmt == FS_FAT16) ? /* (Required FAT size) */
dylancachan 0:6ce9c65992e5 2165 fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
dylancachan 0:6ce9c65992e5 2166 }
dylancachan 0:6ce9c65992e5 2167 if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than required) */
dylancachan 0:6ce9c65992e5 2168 return FR_NO_FILESYSTEM;
dylancachan 0:6ce9c65992e5 2169
dylancachan 0:6ce9c65992e5 2170 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 2171 /* Initialize cluster allocation information */
dylancachan 0:6ce9c65992e5 2172 fs->free_clust = 0xFFFFFFFF;
dylancachan 0:6ce9c65992e5 2173 fs->last_clust = 0;
dylancachan 0:6ce9c65992e5 2174
dylancachan 0:6ce9c65992e5 2175 /* Get fsinfo if available */
dylancachan 0:6ce9c65992e5 2176 if (fmt == FS_FAT32) {
dylancachan 0:6ce9c65992e5 2177 fs->fsi_flag = 0;
dylancachan 0:6ce9c65992e5 2178 fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
dylancachan 0:6ce9c65992e5 2179 if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK &&
dylancachan 0:6ce9c65992e5 2180 LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
dylancachan 0:6ce9c65992e5 2181 LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
dylancachan 0:6ce9c65992e5 2182 LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
dylancachan 0:6ce9c65992e5 2183 fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
dylancachan 0:6ce9c65992e5 2184 fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
dylancachan 0:6ce9c65992e5 2185 }
dylancachan 0:6ce9c65992e5 2186 }
dylancachan 0:6ce9c65992e5 2187 #endif
dylancachan 0:6ce9c65992e5 2188 fs->fs_type = fmt; /* FAT sub-type */
dylancachan 0:6ce9c65992e5 2189 fs->id = ++Fsid; /* File system mount ID */
dylancachan 0:6ce9c65992e5 2190 fs->winsect = 0; /* Invalidate sector cache */
dylancachan 0:6ce9c65992e5 2191 fs->wflag = 0;
dylancachan 0:6ce9c65992e5 2192 #if _FS_RPATH
dylancachan 0:6ce9c65992e5 2193 fs->cdir = 0; /* Current directory (root dir) */
dylancachan 0:6ce9c65992e5 2194 #endif
dylancachan 0:6ce9c65992e5 2195 #if _FS_LOCK /* Clear file lock semaphores */
dylancachan 0:6ce9c65992e5 2196 clear_lock(fs);
dylancachan 0:6ce9c65992e5 2197 #endif
dylancachan 0:6ce9c65992e5 2198
dylancachan 0:6ce9c65992e5 2199 return FR_OK;
dylancachan 0:6ce9c65992e5 2200 }
dylancachan 0:6ce9c65992e5 2201
dylancachan 0:6ce9c65992e5 2202
dylancachan 0:6ce9c65992e5 2203
dylancachan 0:6ce9c65992e5 2204
dylancachan 0:6ce9c65992e5 2205 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2206 /* Check if the file/dir object is valid or not */
dylancachan 0:6ce9c65992e5 2207 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2208
dylancachan 0:6ce9c65992e5 2209 static
dylancachan 0:6ce9c65992e5 2210 FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
dylancachan 0:6ce9c65992e5 2211 void* obj /* Pointer to the object FIL/DIR to check validity */
dylancachan 0:6ce9c65992e5 2212 )
dylancachan 0:6ce9c65992e5 2213 {
dylancachan 0:6ce9c65992e5 2214 FIL *fil;
dylancachan 0:6ce9c65992e5 2215
dylancachan 0:6ce9c65992e5 2216
dylancachan 0:6ce9c65992e5 2217 fil = (FIL*)obj; /* Assuming offset of fs and id in the FIL/DIR is identical */
dylancachan 0:6ce9c65992e5 2218 if (!fil->fs || !fil->fs->fs_type || fil->fs->id != fil->id)
dylancachan 0:6ce9c65992e5 2219 return FR_INVALID_OBJECT;
dylancachan 0:6ce9c65992e5 2220
dylancachan 0:6ce9c65992e5 2221 ENTER_FF(fil->fs); /* Lock file system */
dylancachan 0:6ce9c65992e5 2222
dylancachan 0:6ce9c65992e5 2223 if (disk_status(fil->fs->drv) & STA_NOINIT)
dylancachan 0:6ce9c65992e5 2224 return FR_NOT_READY;
dylancachan 0:6ce9c65992e5 2225
dylancachan 0:6ce9c65992e5 2226 return FR_OK;
dylancachan 0:6ce9c65992e5 2227 }
dylancachan 0:6ce9c65992e5 2228
dylancachan 0:6ce9c65992e5 2229
dylancachan 0:6ce9c65992e5 2230
dylancachan 0:6ce9c65992e5 2231
dylancachan 0:6ce9c65992e5 2232 /*--------------------------------------------------------------------------
dylancachan 0:6ce9c65992e5 2233
dylancachan 0:6ce9c65992e5 2234 Public Functions
dylancachan 0:6ce9c65992e5 2235
dylancachan 0:6ce9c65992e5 2236 --------------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2237
dylancachan 0:6ce9c65992e5 2238
dylancachan 0:6ce9c65992e5 2239
dylancachan 0:6ce9c65992e5 2240 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2241 /* Mount/Unmount a Logical Drive */
dylancachan 0:6ce9c65992e5 2242 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2243
dylancachan 0:6ce9c65992e5 2244 FRESULT f_mount (
dylancachan 0:6ce9c65992e5 2245 BYTE vol, /* Logical drive number to be mounted/unmounted */
dylancachan 0:6ce9c65992e5 2246 FATFS *fs /* Pointer to new file system object (NULL for unmount)*/
dylancachan 0:6ce9c65992e5 2247 )
dylancachan 0:6ce9c65992e5 2248 {
dylancachan 0:6ce9c65992e5 2249 FATFS *rfs;
dylancachan 0:6ce9c65992e5 2250
dylancachan 0:6ce9c65992e5 2251
dylancachan 0:6ce9c65992e5 2252 if (vol >= _VOLUMES) /* Check if the drive number is valid */
dylancachan 0:6ce9c65992e5 2253 return FR_INVALID_DRIVE;
dylancachan 0:6ce9c65992e5 2254 rfs = FatFs[vol]; /* Get current fs object */
dylancachan 0:6ce9c65992e5 2255
dylancachan 0:6ce9c65992e5 2256 if (rfs) {
dylancachan 0:6ce9c65992e5 2257 #if _FS_LOCK
dylancachan 0:6ce9c65992e5 2258 clear_lock(rfs);
dylancachan 0:6ce9c65992e5 2259 #endif
dylancachan 0:6ce9c65992e5 2260 #if _FS_REENTRANT /* Discard sync object of the current volume */
dylancachan 0:6ce9c65992e5 2261 if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
dylancachan 0:6ce9c65992e5 2262 #endif
dylancachan 0:6ce9c65992e5 2263 rfs->fs_type = 0; /* Clear old fs object */
dylancachan 0:6ce9c65992e5 2264 }
dylancachan 0:6ce9c65992e5 2265
dylancachan 0:6ce9c65992e5 2266 if (fs) {
dylancachan 0:6ce9c65992e5 2267 fs->fs_type = 0; /* Clear new fs object */
dylancachan 0:6ce9c65992e5 2268 #if _FS_REENTRANT /* Create sync object for the new volume */
dylancachan 0:6ce9c65992e5 2269 if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
dylancachan 0:6ce9c65992e5 2270 #endif
dylancachan 0:6ce9c65992e5 2271 }
dylancachan 0:6ce9c65992e5 2272 FatFs[vol] = fs; /* Register new fs object */
dylancachan 0:6ce9c65992e5 2273
dylancachan 0:6ce9c65992e5 2274 return FR_OK;
dylancachan 0:6ce9c65992e5 2275 }
dylancachan 0:6ce9c65992e5 2276
dylancachan 0:6ce9c65992e5 2277
dylancachan 0:6ce9c65992e5 2278
dylancachan 0:6ce9c65992e5 2279
dylancachan 0:6ce9c65992e5 2280 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2281 /* Open or Create a File */
dylancachan 0:6ce9c65992e5 2282 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2283
dylancachan 0:6ce9c65992e5 2284 FRESULT f_open (
dylancachan 0:6ce9c65992e5 2285 FIL *fp, /* Pointer to the blank file object */
dylancachan 0:6ce9c65992e5 2286 const TCHAR *path, /* Pointer to the file name */
dylancachan 0:6ce9c65992e5 2287 BYTE mode /* Access mode and file open mode flags */
dylancachan 0:6ce9c65992e5 2288 )
dylancachan 0:6ce9c65992e5 2289 {
dylancachan 0:6ce9c65992e5 2290 FRESULT res;
dylancachan 0:6ce9c65992e5 2291 FATFS_DIR dj;
dylancachan 0:6ce9c65992e5 2292 BYTE *dir;
dylancachan 0:6ce9c65992e5 2293 DEF_NAMEBUF;
dylancachan 0:6ce9c65992e5 2294
dylancachan 0:6ce9c65992e5 2295
dylancachan 0:6ce9c65992e5 2296 if (!fp) return FR_INVALID_OBJECT;
dylancachan 0:6ce9c65992e5 2297 fp->fs = 0; /* Clear file object */
dylancachan 0:6ce9c65992e5 2298
dylancachan 0:6ce9c65992e5 2299 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 2300 mode &= FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW;
dylancachan 0:6ce9c65992e5 2301 res = chk_mounted(&path, &dj.fs, (BYTE)(mode & ~FA_READ));
dylancachan 0:6ce9c65992e5 2302 #else
dylancachan 0:6ce9c65992e5 2303 mode &= FA_READ;
dylancachan 0:6ce9c65992e5 2304 res = chk_mounted(&path, &dj.fs, 0);
dylancachan 0:6ce9c65992e5 2305 #endif
dylancachan 0:6ce9c65992e5 2306 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 2307 INIT_BUF(dj);
dylancachan 0:6ce9c65992e5 2308 res = follow_path(&dj, path); /* Follow the file path */
dylancachan 0:6ce9c65992e5 2309 dir = dj.dir;
dylancachan 0:6ce9c65992e5 2310 #if !_FS_READONLY /* R/W configuration */
dylancachan 0:6ce9c65992e5 2311 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 2312 if (!dir) /* Current dir itself */
dylancachan 0:6ce9c65992e5 2313 res = FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 2314 #if _FS_LOCK
dylancachan 0:6ce9c65992e5 2315 else
dylancachan 0:6ce9c65992e5 2316 res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
dylancachan 0:6ce9c65992e5 2317 #endif
dylancachan 0:6ce9c65992e5 2318 }
dylancachan 0:6ce9c65992e5 2319 /* Create or Open a file */
dylancachan 0:6ce9c65992e5 2320 if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) {
dylancachan 0:6ce9c65992e5 2321 DWORD dw, cl;
dylancachan 0:6ce9c65992e5 2322
dylancachan 0:6ce9c65992e5 2323 if (res != FR_OK) { /* No file, create new */
dylancachan 0:6ce9c65992e5 2324 if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
dylancachan 0:6ce9c65992e5 2325 #if _FS_LOCK
dylancachan 0:6ce9c65992e5 2326 res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
dylancachan 0:6ce9c65992e5 2327 #else
dylancachan 0:6ce9c65992e5 2328 res = dir_register(&dj);
dylancachan 0:6ce9c65992e5 2329 #endif
dylancachan 0:6ce9c65992e5 2330 mode |= FA_CREATE_ALWAYS; /* File is created */
dylancachan 0:6ce9c65992e5 2331 dir = dj.dir; /* New entry */
dylancachan 0:6ce9c65992e5 2332 }
dylancachan 0:6ce9c65992e5 2333 else { /* Any object is already existing */
dylancachan 0:6ce9c65992e5 2334 if (dir[DIR_Attr] & (AM_RDO | AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */
dylancachan 0:6ce9c65992e5 2335 res = FR_DENIED;
dylancachan 0:6ce9c65992e5 2336 } else {
dylancachan 0:6ce9c65992e5 2337 if (mode & FA_CREATE_NEW) /* Cannot create as new file */
dylancachan 0:6ce9c65992e5 2338 res = FR_EXIST;
dylancachan 0:6ce9c65992e5 2339 }
dylancachan 0:6ce9c65992e5 2340 }
dylancachan 0:6ce9c65992e5 2341 if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
dylancachan 0:6ce9c65992e5 2342 dw = get_fattime(); /* Created time */
dylancachan 0:6ce9c65992e5 2343 ST_DWORD(dir+DIR_CrtTime, dw);
dylancachan 0:6ce9c65992e5 2344 dir[DIR_Attr] = 0; /* Reset attribute */
dylancachan 0:6ce9c65992e5 2345 ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
dylancachan 0:6ce9c65992e5 2346 cl = ld_clust(dj.fs, dir); /* Get start cluster */
dylancachan 0:6ce9c65992e5 2347 st_clust(dir, 0); /* cluster = 0 */
dylancachan 0:6ce9c65992e5 2348 dj.fs->wflag = 1;
dylancachan 0:6ce9c65992e5 2349 if (cl) { /* Remove the cluster chain if exist */
dylancachan 0:6ce9c65992e5 2350 dw = dj.fs->winsect;
dylancachan 0:6ce9c65992e5 2351 res = remove_chain(dj.fs, cl);
dylancachan 0:6ce9c65992e5 2352 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 2353 dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
dylancachan 0:6ce9c65992e5 2354 res = move_window(dj.fs, dw);
dylancachan 0:6ce9c65992e5 2355 }
dylancachan 0:6ce9c65992e5 2356 }
dylancachan 0:6ce9c65992e5 2357 }
dylancachan 0:6ce9c65992e5 2358 }
dylancachan 0:6ce9c65992e5 2359 else { /* Open an existing file */
dylancachan 0:6ce9c65992e5 2360 if (res == FR_OK) { /* Follow succeeded */
dylancachan 0:6ce9c65992e5 2361 if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
dylancachan 0:6ce9c65992e5 2362 res = FR_NO_FILE;
dylancachan 0:6ce9c65992e5 2363 } else {
dylancachan 0:6ce9c65992e5 2364 if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
dylancachan 0:6ce9c65992e5 2365 res = FR_DENIED;
dylancachan 0:6ce9c65992e5 2366 }
dylancachan 0:6ce9c65992e5 2367 }
dylancachan 0:6ce9c65992e5 2368 }
dylancachan 0:6ce9c65992e5 2369 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 2370 if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
dylancachan 0:6ce9c65992e5 2371 mode |= FA__WRITTEN;
dylancachan 0:6ce9c65992e5 2372 fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
dylancachan 0:6ce9c65992e5 2373 fp->dir_ptr = dir;
dylancachan 0:6ce9c65992e5 2374 #if _FS_LOCK
dylancachan 0:6ce9c65992e5 2375 fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
dylancachan 0:6ce9c65992e5 2376 if (!fp->lockid) res = FR_INT_ERR;
dylancachan 0:6ce9c65992e5 2377 #endif
dylancachan 0:6ce9c65992e5 2378 }
dylancachan 0:6ce9c65992e5 2379
dylancachan 0:6ce9c65992e5 2380 #else /* R/O configuration */
dylancachan 0:6ce9c65992e5 2381 if (res == FR_OK) { /* Follow succeeded */
dylancachan 0:6ce9c65992e5 2382 dir = dj.dir;
dylancachan 0:6ce9c65992e5 2383 if (!dir) { /* Current dir itself */
dylancachan 0:6ce9c65992e5 2384 res = FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 2385 } else {
dylancachan 0:6ce9c65992e5 2386 if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
dylancachan 0:6ce9c65992e5 2387 res = FR_NO_FILE;
dylancachan 0:6ce9c65992e5 2388 }
dylancachan 0:6ce9c65992e5 2389 }
dylancachan 0:6ce9c65992e5 2390 #endif
dylancachan 0:6ce9c65992e5 2391 FREE_BUF();
dylancachan 0:6ce9c65992e5 2392
dylancachan 0:6ce9c65992e5 2393 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 2394 fp->flag = mode; /* File access mode */
dylancachan 0:6ce9c65992e5 2395 fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
dylancachan 0:6ce9c65992e5 2396 fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
dylancachan 0:6ce9c65992e5 2397 fp->fptr = 0; /* File pointer */
dylancachan 0:6ce9c65992e5 2398 fp->dsect = 0;
dylancachan 0:6ce9c65992e5 2399 #if _USE_FASTSEEK
dylancachan 0:6ce9c65992e5 2400 fp->cltbl = 0; /* Normal seek mode */
dylancachan 0:6ce9c65992e5 2401 #endif
dylancachan 0:6ce9c65992e5 2402 fp->fs = dj.fs; fp->id = dj.fs->id; /* Validate file object */
dylancachan 0:6ce9c65992e5 2403 }
dylancachan 0:6ce9c65992e5 2404 }
dylancachan 0:6ce9c65992e5 2405
dylancachan 0:6ce9c65992e5 2406 LEAVE_FF(dj.fs, res);
dylancachan 0:6ce9c65992e5 2407 }
dylancachan 0:6ce9c65992e5 2408
dylancachan 0:6ce9c65992e5 2409
dylancachan 0:6ce9c65992e5 2410
dylancachan 0:6ce9c65992e5 2411
dylancachan 0:6ce9c65992e5 2412 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2413 /* Read File */
dylancachan 0:6ce9c65992e5 2414 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2415
dylancachan 0:6ce9c65992e5 2416 FRESULT f_read (
dylancachan 0:6ce9c65992e5 2417 FIL *fp, /* Pointer to the file object */
dylancachan 0:6ce9c65992e5 2418 void *buff, /* Pointer to data buffer */
dylancachan 0:6ce9c65992e5 2419 UINT btr, /* Number of bytes to read */
dylancachan 0:6ce9c65992e5 2420 UINT *br /* Pointer to number of bytes read */
dylancachan 0:6ce9c65992e5 2421 )
dylancachan 0:6ce9c65992e5 2422 {
dylancachan 0:6ce9c65992e5 2423 FRESULT res;
dylancachan 0:6ce9c65992e5 2424 DWORD clst, sect, remain;
dylancachan 0:6ce9c65992e5 2425 UINT rcnt, cc;
dylancachan 0:6ce9c65992e5 2426 BYTE csect, *rbuff = (BYTE *)buff;
dylancachan 0:6ce9c65992e5 2427
dylancachan 0:6ce9c65992e5 2428
dylancachan 0:6ce9c65992e5 2429 *br = 0; /* Clear read byte counter */
dylancachan 0:6ce9c65992e5 2430
dylancachan 0:6ce9c65992e5 2431 res = validate(fp); /* Check validity */
dylancachan 0:6ce9c65992e5 2432 if (res != FR_OK) LEAVE_FF(fp->fs, res);
dylancachan 0:6ce9c65992e5 2433 if (fp->flag & FA__ERROR) /* Aborted file? */
dylancachan 0:6ce9c65992e5 2434 LEAVE_FF(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 2435 if (!(fp->flag & FA_READ)) /* Check access mode */
dylancachan 0:6ce9c65992e5 2436 LEAVE_FF(fp->fs, FR_DENIED);
dylancachan 0:6ce9c65992e5 2437 remain = fp->fsize - fp->fptr;
dylancachan 0:6ce9c65992e5 2438 if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
dylancachan 0:6ce9c65992e5 2439
dylancachan 0:6ce9c65992e5 2440 for ( ; btr; /* Repeat until all data read */
dylancachan 0:6ce9c65992e5 2441 rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
dylancachan 0:6ce9c65992e5 2442 if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
dylancachan 0:6ce9c65992e5 2443 csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
dylancachan 0:6ce9c65992e5 2444 if (!csect) { /* On the cluster boundary? */
dylancachan 0:6ce9c65992e5 2445 if (fp->fptr == 0) { /* On the top of the file? */
dylancachan 0:6ce9c65992e5 2446 clst = fp->sclust; /* Follow from the origin */
dylancachan 0:6ce9c65992e5 2447 } else { /* Middle or end of the file */
dylancachan 0:6ce9c65992e5 2448 #if _USE_FASTSEEK
dylancachan 0:6ce9c65992e5 2449 if (fp->cltbl)
dylancachan 0:6ce9c65992e5 2450 clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
dylancachan 0:6ce9c65992e5 2451 else
dylancachan 0:6ce9c65992e5 2452 #endif
dylancachan 0:6ce9c65992e5 2453 clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
dylancachan 0:6ce9c65992e5 2454 }
dylancachan 0:6ce9c65992e5 2455 if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 2456 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2457 fp->clust = clst; /* Update current cluster */
dylancachan 0:6ce9c65992e5 2458 }
dylancachan 0:6ce9c65992e5 2459 sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
dylancachan 0:6ce9c65992e5 2460 if (!sect) ABORT(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 2461 sect += csect;
dylancachan 0:6ce9c65992e5 2462 cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
dylancachan 0:6ce9c65992e5 2463 if (cc) { /* Read maximum contiguous sectors directly */
dylancachan 0:6ce9c65992e5 2464 if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
dylancachan 0:6ce9c65992e5 2465 cc = fp->fs->csize - csect;
dylancachan 0:6ce9c65992e5 2466 if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK)
dylancachan 0:6ce9c65992e5 2467 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2468 #if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
dylancachan 0:6ce9c65992e5 2469 #if _FS_TINY
dylancachan 0:6ce9c65992e5 2470 if (fp->fs->wflag && fp->fs->winsect - sect < cc)
dylancachan 0:6ce9c65992e5 2471 mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
dylancachan 0:6ce9c65992e5 2472 #else
dylancachan 0:6ce9c65992e5 2473 if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
dylancachan 0:6ce9c65992e5 2474 mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
dylancachan 0:6ce9c65992e5 2475 #endif
dylancachan 0:6ce9c65992e5 2476 #endif
dylancachan 0:6ce9c65992e5 2477 rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
dylancachan 0:6ce9c65992e5 2478 continue;
dylancachan 0:6ce9c65992e5 2479 }
dylancachan 0:6ce9c65992e5 2480 #if !_FS_TINY
dylancachan 0:6ce9c65992e5 2481 if (fp->dsect != sect) { /* Load data sector if not in cache */
dylancachan 0:6ce9c65992e5 2482 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 2483 if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
dylancachan 0:6ce9c65992e5 2484 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
dylancachan 0:6ce9c65992e5 2485 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2486 fp->flag &= ~FA__DIRTY;
dylancachan 0:6ce9c65992e5 2487 }
dylancachan 0:6ce9c65992e5 2488 #endif
dylancachan 0:6ce9c65992e5 2489 if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
dylancachan 0:6ce9c65992e5 2490 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2491 }
dylancachan 0:6ce9c65992e5 2492 #endif
dylancachan 0:6ce9c65992e5 2493 fp->dsect = sect;
dylancachan 0:6ce9c65992e5 2494 }
dylancachan 0:6ce9c65992e5 2495 rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
dylancachan 0:6ce9c65992e5 2496 if (rcnt > btr) rcnt = btr;
dylancachan 0:6ce9c65992e5 2497 #if _FS_TINY
dylancachan 0:6ce9c65992e5 2498 if (move_window(fp->fs, fp->dsect)) /* Move sector window */
dylancachan 0:6ce9c65992e5 2499 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2500 mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
dylancachan 0:6ce9c65992e5 2501 #else
dylancachan 0:6ce9c65992e5 2502 mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
dylancachan 0:6ce9c65992e5 2503 #endif
dylancachan 0:6ce9c65992e5 2504 }
dylancachan 0:6ce9c65992e5 2505
dylancachan 0:6ce9c65992e5 2506 LEAVE_FF(fp->fs, FR_OK);
dylancachan 0:6ce9c65992e5 2507 }
dylancachan 0:6ce9c65992e5 2508
dylancachan 0:6ce9c65992e5 2509
dylancachan 0:6ce9c65992e5 2510
dylancachan 0:6ce9c65992e5 2511
dylancachan 0:6ce9c65992e5 2512 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 2513 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2514 /* Write File */
dylancachan 0:6ce9c65992e5 2515 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2516
dylancachan 0:6ce9c65992e5 2517 FRESULT f_write (
dylancachan 0:6ce9c65992e5 2518 FIL *fp, /* Pointer to the file object */
dylancachan 0:6ce9c65992e5 2519 const void *buff, /* Pointer to the data to be written */
dylancachan 0:6ce9c65992e5 2520 UINT btw, /* Number of bytes to write */
dylancachan 0:6ce9c65992e5 2521 UINT *bw /* Pointer to number of bytes written */
dylancachan 0:6ce9c65992e5 2522 )
dylancachan 0:6ce9c65992e5 2523 {
dylancachan 0:6ce9c65992e5 2524 FRESULT res;
dylancachan 0:6ce9c65992e5 2525 DWORD clst, sect;
dylancachan 0:6ce9c65992e5 2526 UINT wcnt, cc;
dylancachan 0:6ce9c65992e5 2527 const BYTE *wbuff = (const BYTE *)buff;
dylancachan 0:6ce9c65992e5 2528 BYTE csect;
dylancachan 0:6ce9c65992e5 2529 bool need_sync = false;
dylancachan 0:6ce9c65992e5 2530
dylancachan 0:6ce9c65992e5 2531 *bw = 0; /* Clear write byte counter */
dylancachan 0:6ce9c65992e5 2532
dylancachan 0:6ce9c65992e5 2533 res = validate(fp); /* Check validity */
dylancachan 0:6ce9c65992e5 2534 if (res != FR_OK) LEAVE_FF(fp->fs, res);
dylancachan 0:6ce9c65992e5 2535 if (fp->flag & FA__ERROR) /* Aborted file? */
dylancachan 0:6ce9c65992e5 2536 LEAVE_FF(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 2537 if (!(fp->flag & FA_WRITE)) /* Check access mode */
dylancachan 0:6ce9c65992e5 2538 LEAVE_FF(fp->fs, FR_DENIED);
dylancachan 0:6ce9c65992e5 2539 if ((DWORD)(fp->fsize + btw) < fp->fsize) btw = 0; /* File size cannot reach 4GB */
dylancachan 0:6ce9c65992e5 2540
dylancachan 0:6ce9c65992e5 2541 for ( ; btw; /* Repeat until all data written */
dylancachan 0:6ce9c65992e5 2542 wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
dylancachan 0:6ce9c65992e5 2543 if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
dylancachan 0:6ce9c65992e5 2544 csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
dylancachan 0:6ce9c65992e5 2545 if (!csect) { /* On the cluster boundary? */
dylancachan 0:6ce9c65992e5 2546 if (fp->fptr == 0) { /* On the top of the file? */
dylancachan 0:6ce9c65992e5 2547 clst = fp->sclust; /* Follow from the origin */
dylancachan 0:6ce9c65992e5 2548 if (clst == 0) /* When no cluster is allocated, */
dylancachan 0:6ce9c65992e5 2549 fp->sclust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
dylancachan 0:6ce9c65992e5 2550 } else { /* Middle or end of the file */
dylancachan 0:6ce9c65992e5 2551 #if _USE_FASTSEEK
dylancachan 0:6ce9c65992e5 2552 if (fp->cltbl)
dylancachan 0:6ce9c65992e5 2553 clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
dylancachan 0:6ce9c65992e5 2554 else
dylancachan 0:6ce9c65992e5 2555 #endif
dylancachan 0:6ce9c65992e5 2556 clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
dylancachan 0:6ce9c65992e5 2557 }
dylancachan 0:6ce9c65992e5 2558 if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
dylancachan 0:6ce9c65992e5 2559 if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 2560 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2561 fp->clust = clst; /* Update current cluster */
dylancachan 0:6ce9c65992e5 2562
dylancachan 0:6ce9c65992e5 2563 #ifdef FLUSH_ON_NEW_CLUSTER
dylancachan 0:6ce9c65992e5 2564 // We do not need to flush for the first cluster
dylancachan 0:6ce9c65992e5 2565 if (fp->fptr != 0) {
dylancachan 0:6ce9c65992e5 2566 need_sync = true;
dylancachan 0:6ce9c65992e5 2567 }
dylancachan 0:6ce9c65992e5 2568 #endif
dylancachan 0:6ce9c65992e5 2569 }
dylancachan 0:6ce9c65992e5 2570 #if _FS_TINY
dylancachan 0:6ce9c65992e5 2571 if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write-back sector cache */
dylancachan 0:6ce9c65992e5 2572 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2573 #else
dylancachan 0:6ce9c65992e5 2574 if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
dylancachan 0:6ce9c65992e5 2575 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
dylancachan 0:6ce9c65992e5 2576 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2577 fp->flag &= ~FA__DIRTY;
dylancachan 0:6ce9c65992e5 2578 }
dylancachan 0:6ce9c65992e5 2579 #endif
dylancachan 0:6ce9c65992e5 2580 sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
dylancachan 0:6ce9c65992e5 2581 if (!sect) ABORT(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 2582 sect += csect;
dylancachan 0:6ce9c65992e5 2583 cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
dylancachan 0:6ce9c65992e5 2584 if (cc) { /* Write maximum contiguous sectors directly */
dylancachan 0:6ce9c65992e5 2585 if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
dylancachan 0:6ce9c65992e5 2586 cc = fp->fs->csize - csect;
dylancachan 0:6ce9c65992e5 2587 if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK)
dylancachan 0:6ce9c65992e5 2588 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2589 #if _FS_TINY
dylancachan 0:6ce9c65992e5 2590 if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
dylancachan 0:6ce9c65992e5 2591 mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
dylancachan 0:6ce9c65992e5 2592 fp->fs->wflag = 0;
dylancachan 0:6ce9c65992e5 2593 }
dylancachan 0:6ce9c65992e5 2594 #else
dylancachan 0:6ce9c65992e5 2595 if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
dylancachan 0:6ce9c65992e5 2596 mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
dylancachan 0:6ce9c65992e5 2597 fp->flag &= ~FA__DIRTY;
dylancachan 0:6ce9c65992e5 2598 }
dylancachan 0:6ce9c65992e5 2599 #endif
dylancachan 0:6ce9c65992e5 2600 wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
dylancachan 0:6ce9c65992e5 2601 #ifdef FLUSH_ON_NEW_SECTOR
dylancachan 0:6ce9c65992e5 2602 need_sync = true;
dylancachan 0:6ce9c65992e5 2603 #endif
dylancachan 0:6ce9c65992e5 2604 continue;
dylancachan 0:6ce9c65992e5 2605 }
dylancachan 0:6ce9c65992e5 2606 #if _FS_TINY
dylancachan 0:6ce9c65992e5 2607 if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
dylancachan 0:6ce9c65992e5 2608 if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2609 fp->fs->winsect = sect;
dylancachan 0:6ce9c65992e5 2610 }
dylancachan 0:6ce9c65992e5 2611 #else
dylancachan 0:6ce9c65992e5 2612 if (fp->dsect != sect) { /* Fill sector cache with file data */
dylancachan 0:6ce9c65992e5 2613 if (fp->fptr < fp->fsize &&
dylancachan 0:6ce9c65992e5 2614 disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
dylancachan 0:6ce9c65992e5 2615 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2616 }
dylancachan 0:6ce9c65992e5 2617 #endif
dylancachan 0:6ce9c65992e5 2618 fp->dsect = sect;
dylancachan 0:6ce9c65992e5 2619 }
dylancachan 0:6ce9c65992e5 2620 wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
dylancachan 0:6ce9c65992e5 2621 if (wcnt > btw) wcnt = btw;
dylancachan 0:6ce9c65992e5 2622 #if _FS_TINY
dylancachan 0:6ce9c65992e5 2623 if (move_window(fp->fs, fp->dsect)) /* Move sector window */
dylancachan 0:6ce9c65992e5 2624 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2625 mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
dylancachan 0:6ce9c65992e5 2626 fp->fs->wflag = 1;
dylancachan 0:6ce9c65992e5 2627 #else
dylancachan 0:6ce9c65992e5 2628 mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
dylancachan 0:6ce9c65992e5 2629 fp->flag |= FA__DIRTY;
dylancachan 0:6ce9c65992e5 2630 #endif
dylancachan 0:6ce9c65992e5 2631 }
dylancachan 0:6ce9c65992e5 2632
dylancachan 0:6ce9c65992e5 2633 if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
dylancachan 0:6ce9c65992e5 2634 fp->flag |= FA__WRITTEN; /* Set file change flag */
dylancachan 0:6ce9c65992e5 2635
dylancachan 0:6ce9c65992e5 2636 if (need_sync) {
dylancachan 0:6ce9c65992e5 2637 f_sync (fp);
dylancachan 0:6ce9c65992e5 2638 }
dylancachan 0:6ce9c65992e5 2639
dylancachan 0:6ce9c65992e5 2640 LEAVE_FF(fp->fs, FR_OK);
dylancachan 0:6ce9c65992e5 2641 }
dylancachan 0:6ce9c65992e5 2642
dylancachan 0:6ce9c65992e5 2643
dylancachan 0:6ce9c65992e5 2644
dylancachan 0:6ce9c65992e5 2645
dylancachan 0:6ce9c65992e5 2646 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2647 /* Synchronize the File Object */
dylancachan 0:6ce9c65992e5 2648 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2649
dylancachan 0:6ce9c65992e5 2650 FRESULT f_sync (
dylancachan 0:6ce9c65992e5 2651 FIL *fp /* Pointer to the file object */
dylancachan 0:6ce9c65992e5 2652 )
dylancachan 0:6ce9c65992e5 2653 {
dylancachan 0:6ce9c65992e5 2654 FRESULT res;
dylancachan 0:6ce9c65992e5 2655 DWORD tim;
dylancachan 0:6ce9c65992e5 2656 BYTE *dir;
dylancachan 0:6ce9c65992e5 2657
dylancachan 0:6ce9c65992e5 2658
dylancachan 0:6ce9c65992e5 2659 res = validate(fp); /* Check validity of the object */
dylancachan 0:6ce9c65992e5 2660 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 2661 if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
dylancachan 0:6ce9c65992e5 2662 #if !_FS_TINY /* Write-back dirty buffer */
dylancachan 0:6ce9c65992e5 2663 if (fp->flag & FA__DIRTY) {
dylancachan 0:6ce9c65992e5 2664 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
dylancachan 0:6ce9c65992e5 2665 LEAVE_FF(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2666 fp->flag &= ~FA__DIRTY;
dylancachan 0:6ce9c65992e5 2667 }
dylancachan 0:6ce9c65992e5 2668 #endif
dylancachan 0:6ce9c65992e5 2669 /* Update the directory entry */
dylancachan 0:6ce9c65992e5 2670 res = move_window(fp->fs, fp->dir_sect);
dylancachan 0:6ce9c65992e5 2671 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 2672 dir = fp->dir_ptr;
dylancachan 0:6ce9c65992e5 2673 dir[DIR_Attr] |= AM_ARC; /* Set archive bit */
dylancachan 0:6ce9c65992e5 2674 ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
dylancachan 0:6ce9c65992e5 2675 st_clust(dir, fp->sclust); /* Update start cluster */
dylancachan 0:6ce9c65992e5 2676 tim = get_fattime(); /* Update updated time */
dylancachan 0:6ce9c65992e5 2677 ST_DWORD(dir+DIR_WrtTime, tim);
dylancachan 0:6ce9c65992e5 2678 ST_WORD(dir+DIR_LstAccDate, 0);
dylancachan 0:6ce9c65992e5 2679 fp->flag &= ~FA__WRITTEN;
dylancachan 0:6ce9c65992e5 2680 fp->fs->wflag = 1;
dylancachan 0:6ce9c65992e5 2681 res = sync(fp->fs);
dylancachan 0:6ce9c65992e5 2682 }
dylancachan 0:6ce9c65992e5 2683 }
dylancachan 0:6ce9c65992e5 2684 }
dylancachan 0:6ce9c65992e5 2685
dylancachan 0:6ce9c65992e5 2686 LEAVE_FF(fp->fs, res);
dylancachan 0:6ce9c65992e5 2687 }
dylancachan 0:6ce9c65992e5 2688
dylancachan 0:6ce9c65992e5 2689 #endif /* !_FS_READONLY */
dylancachan 0:6ce9c65992e5 2690
dylancachan 0:6ce9c65992e5 2691
dylancachan 0:6ce9c65992e5 2692
dylancachan 0:6ce9c65992e5 2693
dylancachan 0:6ce9c65992e5 2694 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2695 /* Close File */
dylancachan 0:6ce9c65992e5 2696 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2697
dylancachan 0:6ce9c65992e5 2698 FRESULT f_close (
dylancachan 0:6ce9c65992e5 2699 FIL *fp /* Pointer to the file object to be closed */
dylancachan 0:6ce9c65992e5 2700 )
dylancachan 0:6ce9c65992e5 2701 {
dylancachan 0:6ce9c65992e5 2702 FRESULT res;
dylancachan 0:6ce9c65992e5 2703
dylancachan 0:6ce9c65992e5 2704
dylancachan 0:6ce9c65992e5 2705 #if _FS_READONLY
dylancachan 0:6ce9c65992e5 2706 res = validate(fp);
dylancachan 0:6ce9c65992e5 2707 {
dylancachan 0:6ce9c65992e5 2708 #if _FS_REENTRANT
dylancachan 0:6ce9c65992e5 2709 FATFS *fs = fp->fs;
dylancachan 0:6ce9c65992e5 2710 #endif
dylancachan 0:6ce9c65992e5 2711 if (res == FR_OK) fp->fs = 0; /* Discard file object */
dylancachan 0:6ce9c65992e5 2712 LEAVE_FF(fs, res);
dylancachan 0:6ce9c65992e5 2713 }
dylancachan 0:6ce9c65992e5 2714 #else
dylancachan 0:6ce9c65992e5 2715 res = f_sync(fp); /* Flush cached data */
dylancachan 0:6ce9c65992e5 2716 #if _FS_LOCK
dylancachan 0:6ce9c65992e5 2717 if (res == FR_OK) { /* Decrement open counter */
dylancachan 0:6ce9c65992e5 2718 #if _FS_REENTRANT
dylancachan 0:6ce9c65992e5 2719 FATFS *fs = fp->fs;;
dylancachan 0:6ce9c65992e5 2720 res = validate(fp);
dylancachan 0:6ce9c65992e5 2721 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 2722 res = dec_lock(fp->lockid);
dylancachan 0:6ce9c65992e5 2723 unlock_fs(fs, FR_OK);
dylancachan 0:6ce9c65992e5 2724 }
dylancachan 0:6ce9c65992e5 2725 #else
dylancachan 0:6ce9c65992e5 2726 res = dec_lock(fp->lockid);
dylancachan 0:6ce9c65992e5 2727 #endif
dylancachan 0:6ce9c65992e5 2728 }
dylancachan 0:6ce9c65992e5 2729 #endif
dylancachan 0:6ce9c65992e5 2730 if (res == FR_OK) fp->fs = 0; /* Discard file object */
dylancachan 0:6ce9c65992e5 2731 return res;
dylancachan 0:6ce9c65992e5 2732 #endif
dylancachan 0:6ce9c65992e5 2733 }
dylancachan 0:6ce9c65992e5 2734
dylancachan 0:6ce9c65992e5 2735
dylancachan 0:6ce9c65992e5 2736
dylancachan 0:6ce9c65992e5 2737
dylancachan 0:6ce9c65992e5 2738 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2739 /* Current Drive/Directory Handlings */
dylancachan 0:6ce9c65992e5 2740 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2741
dylancachan 0:6ce9c65992e5 2742 #if _FS_RPATH >= 1
dylancachan 0:6ce9c65992e5 2743
dylancachan 0:6ce9c65992e5 2744 FRESULT f_chdrive (
dylancachan 0:6ce9c65992e5 2745 BYTE drv /* Drive number */
dylancachan 0:6ce9c65992e5 2746 )
dylancachan 0:6ce9c65992e5 2747 {
dylancachan 0:6ce9c65992e5 2748 if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
dylancachan 0:6ce9c65992e5 2749
dylancachan 0:6ce9c65992e5 2750 CurrVol = drv;
dylancachan 0:6ce9c65992e5 2751
dylancachan 0:6ce9c65992e5 2752 return FR_OK;
dylancachan 0:6ce9c65992e5 2753 }
dylancachan 0:6ce9c65992e5 2754
dylancachan 0:6ce9c65992e5 2755
dylancachan 0:6ce9c65992e5 2756
dylancachan 0:6ce9c65992e5 2757 FRESULT f_chdir (
dylancachan 0:6ce9c65992e5 2758 const TCHAR *path /* Pointer to the directory path */
dylancachan 0:6ce9c65992e5 2759 )
dylancachan 0:6ce9c65992e5 2760 {
dylancachan 0:6ce9c65992e5 2761 FRESULT res;
dylancachan 0:6ce9c65992e5 2762 DIR dj;
dylancachan 0:6ce9c65992e5 2763 DEF_NAMEBUF;
dylancachan 0:6ce9c65992e5 2764
dylancachan 0:6ce9c65992e5 2765
dylancachan 0:6ce9c65992e5 2766 res = chk_mounted(&path, &dj.fs, 0);
dylancachan 0:6ce9c65992e5 2767 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 2768 INIT_BUF(dj);
dylancachan 0:6ce9c65992e5 2769 res = follow_path(&dj, path); /* Follow the path */
dylancachan 0:6ce9c65992e5 2770 FREE_BUF();
dylancachan 0:6ce9c65992e5 2771 if (res == FR_OK) { /* Follow completed */
dylancachan 0:6ce9c65992e5 2772 if (!dj.dir) {
dylancachan 0:6ce9c65992e5 2773 dj.fs->cdir = dj.sclust; /* Start directory itself */
dylancachan 0:6ce9c65992e5 2774 } else {
dylancachan 0:6ce9c65992e5 2775 if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
dylancachan 0:6ce9c65992e5 2776 dj.fs->cdir = ld_clust(dj.fs, dj.dir);
dylancachan 0:6ce9c65992e5 2777 else
dylancachan 0:6ce9c65992e5 2778 res = FR_NO_PATH; /* Reached but a file */
dylancachan 0:6ce9c65992e5 2779 }
dylancachan 0:6ce9c65992e5 2780 }
dylancachan 0:6ce9c65992e5 2781 if (res == FR_NO_FILE) res = FR_NO_PATH;
dylancachan 0:6ce9c65992e5 2782 }
dylancachan 0:6ce9c65992e5 2783
dylancachan 0:6ce9c65992e5 2784 LEAVE_FF(dj.fs, res);
dylancachan 0:6ce9c65992e5 2785 }
dylancachan 0:6ce9c65992e5 2786
dylancachan 0:6ce9c65992e5 2787
dylancachan 0:6ce9c65992e5 2788 #if _FS_RPATH >= 2
dylancachan 0:6ce9c65992e5 2789 FRESULT f_getcwd (
dylancachan 0:6ce9c65992e5 2790 TCHAR *path, /* Pointer to the directory path */
dylancachan 0:6ce9c65992e5 2791 UINT sz_path /* Size of path */
dylancachan 0:6ce9c65992e5 2792 )
dylancachan 0:6ce9c65992e5 2793 {
dylancachan 0:6ce9c65992e5 2794 FRESULT res;
dylancachan 0:6ce9c65992e5 2795 DIR dj;
dylancachan 0:6ce9c65992e5 2796 UINT i, n;
dylancachan 0:6ce9c65992e5 2797 DWORD ccl;
dylancachan 0:6ce9c65992e5 2798 TCHAR *tp;
dylancachan 0:6ce9c65992e5 2799 FILINFO fno;
dylancachan 0:6ce9c65992e5 2800 DEF_NAMEBUF;
dylancachan 0:6ce9c65992e5 2801
dylancachan 0:6ce9c65992e5 2802
dylancachan 0:6ce9c65992e5 2803 *path = 0;
dylancachan 0:6ce9c65992e5 2804 res = chk_mounted((const TCHAR**)&path, &dj.fs, 0); /* Get current volume */
dylancachan 0:6ce9c65992e5 2805 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 2806 INIT_BUF(dj);
dylancachan 0:6ce9c65992e5 2807 i = sz_path; /* Bottom of buffer (dir stack base) */
dylancachan 0:6ce9c65992e5 2808 dj.sclust = dj.fs->cdir; /* Start to follow upper dir from current dir */
dylancachan 0:6ce9c65992e5 2809 while ((ccl = dj.sclust) != 0) { /* Repeat while current dir is a sub-dir */
dylancachan 0:6ce9c65992e5 2810 res = dir_sdi(&dj, 1); /* Get parent dir */
dylancachan 0:6ce9c65992e5 2811 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 2812 res = dir_read(&dj);
dylancachan 0:6ce9c65992e5 2813 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 2814 dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent dir */
dylancachan 0:6ce9c65992e5 2815 res = dir_sdi(&dj, 0);
dylancachan 0:6ce9c65992e5 2816 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 2817 do { /* Find the entry links to the child dir */
dylancachan 0:6ce9c65992e5 2818 res = dir_read(&dj);
dylancachan 0:6ce9c65992e5 2819 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 2820 if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
dylancachan 0:6ce9c65992e5 2821 res = dir_next(&dj, 0);
dylancachan 0:6ce9c65992e5 2822 } while (res == FR_OK);
dylancachan 0:6ce9c65992e5 2823 if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
dylancachan 0:6ce9c65992e5 2824 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 2825 #if _USE_LFN
dylancachan 0:6ce9c65992e5 2826 fno.lfname = path;
dylancachan 0:6ce9c65992e5 2827 fno.lfsize = i;
dylancachan 0:6ce9c65992e5 2828 #endif
dylancachan 0:6ce9c65992e5 2829 get_fileinfo(&dj, &fno); /* Get the dir name and push it to the buffer */
dylancachan 0:6ce9c65992e5 2830 tp = fno.fname;
dylancachan 0:6ce9c65992e5 2831 if (_USE_LFN && *path) tp = path;
dylancachan 0:6ce9c65992e5 2832 for (n = 0; tp[n]; n++) ;
dylancachan 0:6ce9c65992e5 2833 if (i < n + 3) {
dylancachan 0:6ce9c65992e5 2834 res = FR_NOT_ENOUGH_CORE; break;
dylancachan 0:6ce9c65992e5 2835 }
dylancachan 0:6ce9c65992e5 2836 while (n) path[--i] = tp[--n];
dylancachan 0:6ce9c65992e5 2837 path[--i] = '/';
dylancachan 0:6ce9c65992e5 2838 }
dylancachan 0:6ce9c65992e5 2839 tp = path;
dylancachan 0:6ce9c65992e5 2840 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 2841 *tp++ = '0' + CurrVol; /* Put drive number */
dylancachan 0:6ce9c65992e5 2842 *tp++ = ':';
dylancachan 0:6ce9c65992e5 2843 if (i == sz_path) { /* Root-dir */
dylancachan 0:6ce9c65992e5 2844 *tp++ = '/';
dylancachan 0:6ce9c65992e5 2845 } else { /* Sub-dir */
dylancachan 0:6ce9c65992e5 2846 do /* Add stacked path str */
dylancachan 0:6ce9c65992e5 2847 *tp++ = path[i++];
dylancachan 0:6ce9c65992e5 2848 while (i < sz_path);
dylancachan 0:6ce9c65992e5 2849 }
dylancachan 0:6ce9c65992e5 2850 }
dylancachan 0:6ce9c65992e5 2851 *tp = 0;
dylancachan 0:6ce9c65992e5 2852 FREE_BUF();
dylancachan 0:6ce9c65992e5 2853 }
dylancachan 0:6ce9c65992e5 2854
dylancachan 0:6ce9c65992e5 2855 LEAVE_FF(dj.fs, res);
dylancachan 0:6ce9c65992e5 2856 }
dylancachan 0:6ce9c65992e5 2857 #endif /* _FS_RPATH >= 2 */
dylancachan 0:6ce9c65992e5 2858 #endif /* _FS_RPATH >= 1 */
dylancachan 0:6ce9c65992e5 2859
dylancachan 0:6ce9c65992e5 2860
dylancachan 0:6ce9c65992e5 2861
dylancachan 0:6ce9c65992e5 2862 #if _FS_MINIMIZE <= 2
dylancachan 0:6ce9c65992e5 2863 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2864 /* Seek File R/W Pointer */
dylancachan 0:6ce9c65992e5 2865 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 2866
dylancachan 0:6ce9c65992e5 2867 FRESULT f_lseek (
dylancachan 0:6ce9c65992e5 2868 FIL *fp, /* Pointer to the file object */
dylancachan 0:6ce9c65992e5 2869 DWORD ofs /* File pointer from top of file */
dylancachan 0:6ce9c65992e5 2870 )
dylancachan 0:6ce9c65992e5 2871 {
dylancachan 0:6ce9c65992e5 2872 FRESULT res;
dylancachan 0:6ce9c65992e5 2873
dylancachan 0:6ce9c65992e5 2874
dylancachan 0:6ce9c65992e5 2875 res = validate(fp); /* Check validity of the object */
dylancachan 0:6ce9c65992e5 2876 if (res != FR_OK) LEAVE_FF(fp->fs, res);
dylancachan 0:6ce9c65992e5 2877 if (fp->flag & FA__ERROR) /* Check abort flag */
dylancachan 0:6ce9c65992e5 2878 LEAVE_FF(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 2879
dylancachan 0:6ce9c65992e5 2880 #if _USE_FASTSEEK
dylancachan 0:6ce9c65992e5 2881 if (fp->cltbl) { /* Fast seek */
dylancachan 0:6ce9c65992e5 2882 DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
dylancachan 0:6ce9c65992e5 2883
dylancachan 0:6ce9c65992e5 2884 if (ofs == CREATE_LINKMAP) { /* Create CLMT */
dylancachan 0:6ce9c65992e5 2885 tbl = fp->cltbl;
dylancachan 0:6ce9c65992e5 2886 tlen = *tbl++; ulen = 2; /* Given table size and required table size */
dylancachan 0:6ce9c65992e5 2887 cl = fp->sclust; /* Top of the chain */
dylancachan 0:6ce9c65992e5 2888 if (cl) {
dylancachan 0:6ce9c65992e5 2889 do {
dylancachan 0:6ce9c65992e5 2890 /* Get a fragment */
dylancachan 0:6ce9c65992e5 2891 tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
dylancachan 0:6ce9c65992e5 2892 do {
dylancachan 0:6ce9c65992e5 2893 pcl = cl; ncl++;
dylancachan 0:6ce9c65992e5 2894 cl = get_fat(fp->fs, cl);
dylancachan 0:6ce9c65992e5 2895 if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 2896 if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2897 } while (cl == pcl + 1);
dylancachan 0:6ce9c65992e5 2898 if (ulen <= tlen) { /* Store the length and top of the fragment */
dylancachan 0:6ce9c65992e5 2899 *tbl++ = ncl; *tbl++ = tcl;
dylancachan 0:6ce9c65992e5 2900 }
dylancachan 0:6ce9c65992e5 2901 } while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
dylancachan 0:6ce9c65992e5 2902 }
dylancachan 0:6ce9c65992e5 2903 *fp->cltbl = ulen; /* Number of items used */
dylancachan 0:6ce9c65992e5 2904 if (ulen <= tlen)
dylancachan 0:6ce9c65992e5 2905 *tbl = 0; /* Terminate table */
dylancachan 0:6ce9c65992e5 2906 else
dylancachan 0:6ce9c65992e5 2907 res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
dylancachan 0:6ce9c65992e5 2908
dylancachan 0:6ce9c65992e5 2909 } else { /* Fast seek */
dylancachan 0:6ce9c65992e5 2910 if (ofs > fp->fsize) /* Clip offset at the file size */
dylancachan 0:6ce9c65992e5 2911 ofs = fp->fsize;
dylancachan 0:6ce9c65992e5 2912 fp->fptr = ofs; /* Set file pointer */
dylancachan 0:6ce9c65992e5 2913 if (ofs) {
dylancachan 0:6ce9c65992e5 2914 fp->clust = clmt_clust(fp, ofs - 1);
dylancachan 0:6ce9c65992e5 2915 dsc = clust2sect(fp->fs, fp->clust);
dylancachan 0:6ce9c65992e5 2916 if (!dsc) ABORT(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 2917 dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
dylancachan 0:6ce9c65992e5 2918 if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
dylancachan 0:6ce9c65992e5 2919 #if !_FS_TINY
dylancachan 0:6ce9c65992e5 2920 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 2921 if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
dylancachan 0:6ce9c65992e5 2922 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
dylancachan 0:6ce9c65992e5 2923 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2924 fp->flag &= ~FA__DIRTY;
dylancachan 0:6ce9c65992e5 2925 }
dylancachan 0:6ce9c65992e5 2926 #endif
dylancachan 0:6ce9c65992e5 2927 if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
dylancachan 0:6ce9c65992e5 2928 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2929 #endif
dylancachan 0:6ce9c65992e5 2930 fp->dsect = dsc;
dylancachan 0:6ce9c65992e5 2931 }
dylancachan 0:6ce9c65992e5 2932 }
dylancachan 0:6ce9c65992e5 2933 }
dylancachan 0:6ce9c65992e5 2934 } else
dylancachan 0:6ce9c65992e5 2935 #endif
dylancachan 0:6ce9c65992e5 2936
dylancachan 0:6ce9c65992e5 2937 /* Normal Seek */
dylancachan 0:6ce9c65992e5 2938 {
dylancachan 0:6ce9c65992e5 2939 DWORD clst, bcs, nsect, ifptr;
dylancachan 0:6ce9c65992e5 2940
dylancachan 0:6ce9c65992e5 2941 if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
dylancachan 0:6ce9c65992e5 2942 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 2943 && !(fp->flag & FA_WRITE)
dylancachan 0:6ce9c65992e5 2944 #endif
dylancachan 0:6ce9c65992e5 2945 ) ofs = fp->fsize;
dylancachan 0:6ce9c65992e5 2946
dylancachan 0:6ce9c65992e5 2947 ifptr = fp->fptr;
dylancachan 0:6ce9c65992e5 2948 fp->fptr = nsect = 0;
dylancachan 0:6ce9c65992e5 2949 if (ofs) {
dylancachan 0:6ce9c65992e5 2950 bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
dylancachan 0:6ce9c65992e5 2951 if (ifptr > 0 &&
dylancachan 0:6ce9c65992e5 2952 (ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
dylancachan 0:6ce9c65992e5 2953 fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
dylancachan 0:6ce9c65992e5 2954 ofs -= fp->fptr;
dylancachan 0:6ce9c65992e5 2955 clst = fp->clust;
dylancachan 0:6ce9c65992e5 2956 } else { /* When seek to back cluster, */
dylancachan 0:6ce9c65992e5 2957 clst = fp->sclust; /* start from the first cluster */
dylancachan 0:6ce9c65992e5 2958 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 2959 if (clst == 0) { /* If no cluster chain, create a new chain */
dylancachan 0:6ce9c65992e5 2960 clst = create_chain(fp->fs, 0);
dylancachan 0:6ce9c65992e5 2961 if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 2962 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2963 fp->sclust = clst;
dylancachan 0:6ce9c65992e5 2964 }
dylancachan 0:6ce9c65992e5 2965 #endif
dylancachan 0:6ce9c65992e5 2966 fp->clust = clst;
dylancachan 0:6ce9c65992e5 2967 }
dylancachan 0:6ce9c65992e5 2968 if (clst != 0) {
dylancachan 0:6ce9c65992e5 2969 while (ofs > bcs) { /* Cluster following loop */
dylancachan 0:6ce9c65992e5 2970 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 2971 if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
dylancachan 0:6ce9c65992e5 2972 clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
dylancachan 0:6ce9c65992e5 2973 if (clst == 0) { /* When disk gets full, clip file size */
dylancachan 0:6ce9c65992e5 2974 ofs = bcs; break;
dylancachan 0:6ce9c65992e5 2975 }
dylancachan 0:6ce9c65992e5 2976 } else
dylancachan 0:6ce9c65992e5 2977 #endif
dylancachan 0:6ce9c65992e5 2978 clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
dylancachan 0:6ce9c65992e5 2979 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2980 if (clst <= 1 || clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 2981 fp->clust = clst;
dylancachan 0:6ce9c65992e5 2982 fp->fptr += bcs;
dylancachan 0:6ce9c65992e5 2983 ofs -= bcs;
dylancachan 0:6ce9c65992e5 2984 }
dylancachan 0:6ce9c65992e5 2985 fp->fptr += ofs;
dylancachan 0:6ce9c65992e5 2986 if (ofs % SS(fp->fs)) {
dylancachan 0:6ce9c65992e5 2987 nsect = clust2sect(fp->fs, clst); /* Current sector */
dylancachan 0:6ce9c65992e5 2988 if (!nsect) ABORT(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 2989 nsect += ofs / SS(fp->fs);
dylancachan 0:6ce9c65992e5 2990 }
dylancachan 0:6ce9c65992e5 2991 }
dylancachan 0:6ce9c65992e5 2992 }
dylancachan 0:6ce9c65992e5 2993 if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
dylancachan 0:6ce9c65992e5 2994 #if !_FS_TINY
dylancachan 0:6ce9c65992e5 2995 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 2996 if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
dylancachan 0:6ce9c65992e5 2997 if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
dylancachan 0:6ce9c65992e5 2998 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 2999 fp->flag &= ~FA__DIRTY;
dylancachan 0:6ce9c65992e5 3000 }
dylancachan 0:6ce9c65992e5 3001 #endif
dylancachan 0:6ce9c65992e5 3002 if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
dylancachan 0:6ce9c65992e5 3003 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 3004 #endif
dylancachan 0:6ce9c65992e5 3005 fp->dsect = nsect;
dylancachan 0:6ce9c65992e5 3006 }
dylancachan 0:6ce9c65992e5 3007 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 3008 if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
dylancachan 0:6ce9c65992e5 3009 fp->fsize = fp->fptr;
dylancachan 0:6ce9c65992e5 3010 fp->flag |= FA__WRITTEN;
dylancachan 0:6ce9c65992e5 3011 }
dylancachan 0:6ce9c65992e5 3012 #endif
dylancachan 0:6ce9c65992e5 3013 }
dylancachan 0:6ce9c65992e5 3014
dylancachan 0:6ce9c65992e5 3015 LEAVE_FF(fp->fs, res);
dylancachan 0:6ce9c65992e5 3016 }
dylancachan 0:6ce9c65992e5 3017
dylancachan 0:6ce9c65992e5 3018
dylancachan 0:6ce9c65992e5 3019
dylancachan 0:6ce9c65992e5 3020 #if _FS_MINIMIZE <= 1
dylancachan 0:6ce9c65992e5 3021 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3022 /* Create a Directory Object */
dylancachan 0:6ce9c65992e5 3023 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3024
dylancachan 0:6ce9c65992e5 3025 FRESULT f_opendir (
dylancachan 0:6ce9c65992e5 3026 FATFS_DIR *dj, /* Pointer to directory object to create */
dylancachan 0:6ce9c65992e5 3027 const TCHAR *path /* Pointer to the directory path */
dylancachan 0:6ce9c65992e5 3028 )
dylancachan 0:6ce9c65992e5 3029 {
dylancachan 0:6ce9c65992e5 3030 FRESULT res;
dylancachan 0:6ce9c65992e5 3031 FATFS *fs;
dylancachan 0:6ce9c65992e5 3032 DEF_NAMEBUF;
dylancachan 0:6ce9c65992e5 3033
dylancachan 0:6ce9c65992e5 3034
dylancachan 0:6ce9c65992e5 3035 if (!dj) return FR_INVALID_OBJECT;
dylancachan 0:6ce9c65992e5 3036
dylancachan 0:6ce9c65992e5 3037 res = chk_mounted(&path, &dj->fs, 0);
dylancachan 0:6ce9c65992e5 3038 fs = dj->fs;
dylancachan 0:6ce9c65992e5 3039 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3040 INIT_BUF(*dj);
dylancachan 0:6ce9c65992e5 3041 res = follow_path(dj, path); /* Follow the path to the directory */
dylancachan 0:6ce9c65992e5 3042 FREE_BUF();
dylancachan 0:6ce9c65992e5 3043 if (res == FR_OK) { /* Follow completed */
dylancachan 0:6ce9c65992e5 3044 if (dj->dir) { /* It is not the root dir */
dylancachan 0:6ce9c65992e5 3045 if (dj->dir[DIR_Attr] & AM_DIR) { /* The object is a directory */
dylancachan 0:6ce9c65992e5 3046 dj->sclust = ld_clust(fs, dj->dir);
dylancachan 0:6ce9c65992e5 3047 } else { /* The object is not a directory */
dylancachan 0:6ce9c65992e5 3048 res = FR_NO_PATH;
dylancachan 0:6ce9c65992e5 3049 }
dylancachan 0:6ce9c65992e5 3050 }
dylancachan 0:6ce9c65992e5 3051 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3052 dj->id = fs->id;
dylancachan 0:6ce9c65992e5 3053 res = dir_sdi(dj, 0); /* Rewind dir */
dylancachan 0:6ce9c65992e5 3054 }
dylancachan 0:6ce9c65992e5 3055 }
dylancachan 0:6ce9c65992e5 3056 if (res == FR_NO_FILE) res = FR_NO_PATH;
dylancachan 0:6ce9c65992e5 3057 if (res != FR_OK) dj->fs = 0; /* Invalidate the dir object if function faild */
dylancachan 0:6ce9c65992e5 3058 } else {
dylancachan 0:6ce9c65992e5 3059 dj->fs = 0;
dylancachan 0:6ce9c65992e5 3060 }
dylancachan 0:6ce9c65992e5 3061
dylancachan 0:6ce9c65992e5 3062 LEAVE_FF(fs, res);
dylancachan 0:6ce9c65992e5 3063 }
dylancachan 0:6ce9c65992e5 3064
dylancachan 0:6ce9c65992e5 3065
dylancachan 0:6ce9c65992e5 3066
dylancachan 0:6ce9c65992e5 3067
dylancachan 0:6ce9c65992e5 3068 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3069 /* Read Directory Entry in Sequence */
dylancachan 0:6ce9c65992e5 3070 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3071
dylancachan 0:6ce9c65992e5 3072 FRESULT f_readdir (
dylancachan 0:6ce9c65992e5 3073 FATFS_DIR *dj, /* Pointer to the open directory object */
dylancachan 0:6ce9c65992e5 3074 FILINFO *fno /* Pointer to file information to return */
dylancachan 0:6ce9c65992e5 3075 )
dylancachan 0:6ce9c65992e5 3076 {
dylancachan 0:6ce9c65992e5 3077 FRESULT res;
dylancachan 0:6ce9c65992e5 3078 DEF_NAMEBUF;
dylancachan 0:6ce9c65992e5 3079
dylancachan 0:6ce9c65992e5 3080
dylancachan 0:6ce9c65992e5 3081 res = validate(dj); /* Check validity of the object */
dylancachan 0:6ce9c65992e5 3082 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3083 if (!fno) {
dylancachan 0:6ce9c65992e5 3084 res = dir_sdi(dj, 0); /* Rewind the directory object */
dylancachan 0:6ce9c65992e5 3085 } else {
dylancachan 0:6ce9c65992e5 3086 INIT_BUF(*dj);
dylancachan 0:6ce9c65992e5 3087 res = dir_read(dj); /* Read an directory item */
dylancachan 0:6ce9c65992e5 3088 if (res == FR_NO_FILE) { /* Reached end of dir */
dylancachan 0:6ce9c65992e5 3089 dj->sect = 0;
dylancachan 0:6ce9c65992e5 3090 res = FR_OK;
dylancachan 0:6ce9c65992e5 3091 }
dylancachan 0:6ce9c65992e5 3092 if (res == FR_OK) { /* A valid entry is found */
dylancachan 0:6ce9c65992e5 3093 get_fileinfo(dj, fno); /* Get the object information */
dylancachan 0:6ce9c65992e5 3094 res = dir_next(dj, 0); /* Increment index for next */
dylancachan 0:6ce9c65992e5 3095 if (res == FR_NO_FILE) {
dylancachan 0:6ce9c65992e5 3096 dj->sect = 0;
dylancachan 0:6ce9c65992e5 3097 res = FR_OK;
dylancachan 0:6ce9c65992e5 3098 }
dylancachan 0:6ce9c65992e5 3099 }
dylancachan 0:6ce9c65992e5 3100 FREE_BUF();
dylancachan 0:6ce9c65992e5 3101 }
dylancachan 0:6ce9c65992e5 3102 }
dylancachan 0:6ce9c65992e5 3103
dylancachan 0:6ce9c65992e5 3104 LEAVE_FF(dj->fs, res);
dylancachan 0:6ce9c65992e5 3105 }
dylancachan 0:6ce9c65992e5 3106
dylancachan 0:6ce9c65992e5 3107
dylancachan 0:6ce9c65992e5 3108
dylancachan 0:6ce9c65992e5 3109 #if _FS_MINIMIZE == 0
dylancachan 0:6ce9c65992e5 3110 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3111 /* Get File Status */
dylancachan 0:6ce9c65992e5 3112 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3113
dylancachan 0:6ce9c65992e5 3114 FRESULT f_stat (
dylancachan 0:6ce9c65992e5 3115 const TCHAR *path, /* Pointer to the file path */
dylancachan 0:6ce9c65992e5 3116 FILINFO *fno /* Pointer to file information to return */
dylancachan 0:6ce9c65992e5 3117 )
dylancachan 0:6ce9c65992e5 3118 {
dylancachan 0:6ce9c65992e5 3119 FRESULT res;
dylancachan 0:6ce9c65992e5 3120 FATFS_DIR dj;
dylancachan 0:6ce9c65992e5 3121 DEF_NAMEBUF;
dylancachan 0:6ce9c65992e5 3122
dylancachan 0:6ce9c65992e5 3123
dylancachan 0:6ce9c65992e5 3124 res = chk_mounted(&path, &dj.fs, 0);
dylancachan 0:6ce9c65992e5 3125 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3126 INIT_BUF(dj);
dylancachan 0:6ce9c65992e5 3127 res = follow_path(&dj, path); /* Follow the file path */
dylancachan 0:6ce9c65992e5 3128 if (res == FR_OK) { /* Follow completed */
dylancachan 0:6ce9c65992e5 3129 if (dj.dir) /* Found an object */
dylancachan 0:6ce9c65992e5 3130 get_fileinfo(&dj, fno);
dylancachan 0:6ce9c65992e5 3131 else /* It is root dir */
dylancachan 0:6ce9c65992e5 3132 res = FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 3133 }
dylancachan 0:6ce9c65992e5 3134 FREE_BUF();
dylancachan 0:6ce9c65992e5 3135 }
dylancachan 0:6ce9c65992e5 3136
dylancachan 0:6ce9c65992e5 3137 LEAVE_FF(dj.fs, res);
dylancachan 0:6ce9c65992e5 3138 }
dylancachan 0:6ce9c65992e5 3139
dylancachan 0:6ce9c65992e5 3140
dylancachan 0:6ce9c65992e5 3141
dylancachan 0:6ce9c65992e5 3142 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 3143 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3144 /* Get Number of Free Clusters */
dylancachan 0:6ce9c65992e5 3145 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3146
dylancachan 0:6ce9c65992e5 3147 FRESULT f_getfree (
dylancachan 0:6ce9c65992e5 3148 const TCHAR *path, /* Pointer to the logical drive number (root dir) */
dylancachan 0:6ce9c65992e5 3149 DWORD *nclst, /* Pointer to the variable to return number of free clusters */
dylancachan 0:6ce9c65992e5 3150 FATFS **fatfs /* Pointer to pointer to corresponding file system object to return */
dylancachan 0:6ce9c65992e5 3151 )
dylancachan 0:6ce9c65992e5 3152 {
dylancachan 0:6ce9c65992e5 3153 FRESULT res;
dylancachan 0:6ce9c65992e5 3154 FATFS *fs;
dylancachan 0:6ce9c65992e5 3155 DWORD n, clst, sect, stat;
dylancachan 0:6ce9c65992e5 3156 UINT i;
dylancachan 0:6ce9c65992e5 3157 BYTE fat, *p;
dylancachan 0:6ce9c65992e5 3158
dylancachan 0:6ce9c65992e5 3159
dylancachan 0:6ce9c65992e5 3160 /* Get drive number */
dylancachan 0:6ce9c65992e5 3161 res = chk_mounted(&path, fatfs, 0);
dylancachan 0:6ce9c65992e5 3162 fs = *fatfs;
dylancachan 0:6ce9c65992e5 3163 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3164 /* If free_clust is valid, return it without full cluster scan */
dylancachan 0:6ce9c65992e5 3165 if (fs->free_clust <= fs->n_fatent - 2) {
dylancachan 0:6ce9c65992e5 3166 *nclst = fs->free_clust;
dylancachan 0:6ce9c65992e5 3167 } else {
dylancachan 0:6ce9c65992e5 3168 /* Get number of free clusters */
dylancachan 0:6ce9c65992e5 3169 fat = fs->fs_type;
dylancachan 0:6ce9c65992e5 3170 n = 0;
dylancachan 0:6ce9c65992e5 3171 if (fat == FS_FAT12) {
dylancachan 0:6ce9c65992e5 3172 clst = 2;
dylancachan 0:6ce9c65992e5 3173 do {
dylancachan 0:6ce9c65992e5 3174 stat = get_fat(fs, clst);
dylancachan 0:6ce9c65992e5 3175 if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
dylancachan 0:6ce9c65992e5 3176 if (stat == 1) { res = FR_INT_ERR; break; }
dylancachan 0:6ce9c65992e5 3177 if (stat == 0) n++;
dylancachan 0:6ce9c65992e5 3178 } while (++clst < fs->n_fatent);
dylancachan 0:6ce9c65992e5 3179 } else {
dylancachan 0:6ce9c65992e5 3180 clst = fs->n_fatent;
dylancachan 0:6ce9c65992e5 3181 sect = fs->fatbase;
dylancachan 0:6ce9c65992e5 3182 i = 0; p = 0;
dylancachan 0:6ce9c65992e5 3183 do {
dylancachan 0:6ce9c65992e5 3184 if (!i) {
dylancachan 0:6ce9c65992e5 3185 res = move_window(fs, sect++);
dylancachan 0:6ce9c65992e5 3186 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 3187 p = fs->win;
dylancachan 0:6ce9c65992e5 3188 i = SS(fs);
dylancachan 0:6ce9c65992e5 3189 }
dylancachan 0:6ce9c65992e5 3190 if (fat == FS_FAT16) {
dylancachan 0:6ce9c65992e5 3191 if (LD_WORD(p) == 0) n++;
dylancachan 0:6ce9c65992e5 3192 p += 2; i -= 2;
dylancachan 0:6ce9c65992e5 3193 } else {
dylancachan 0:6ce9c65992e5 3194 if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
dylancachan 0:6ce9c65992e5 3195 p += 4; i -= 4;
dylancachan 0:6ce9c65992e5 3196 }
dylancachan 0:6ce9c65992e5 3197 } while (--clst);
dylancachan 0:6ce9c65992e5 3198 }
dylancachan 0:6ce9c65992e5 3199 fs->free_clust = n;
dylancachan 0:6ce9c65992e5 3200 if (fat == FS_FAT32) fs->fsi_flag = 1;
dylancachan 0:6ce9c65992e5 3201 *nclst = n;
dylancachan 0:6ce9c65992e5 3202 }
dylancachan 0:6ce9c65992e5 3203 }
dylancachan 0:6ce9c65992e5 3204 LEAVE_FF(fs, res);
dylancachan 0:6ce9c65992e5 3205 }
dylancachan 0:6ce9c65992e5 3206
dylancachan 0:6ce9c65992e5 3207
dylancachan 0:6ce9c65992e5 3208
dylancachan 0:6ce9c65992e5 3209
dylancachan 0:6ce9c65992e5 3210 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3211 /* Truncate File */
dylancachan 0:6ce9c65992e5 3212 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3213
dylancachan 0:6ce9c65992e5 3214 FRESULT f_truncate (
dylancachan 0:6ce9c65992e5 3215 FIL *fp /* Pointer to the file object */
dylancachan 0:6ce9c65992e5 3216 )
dylancachan 0:6ce9c65992e5 3217 {
dylancachan 0:6ce9c65992e5 3218 FRESULT res;
dylancachan 0:6ce9c65992e5 3219 DWORD ncl;
dylancachan 0:6ce9c65992e5 3220
dylancachan 0:6ce9c65992e5 3221
dylancachan 0:6ce9c65992e5 3222 if (!fp) return FR_INVALID_OBJECT;
dylancachan 0:6ce9c65992e5 3223
dylancachan 0:6ce9c65992e5 3224 res = validate(fp); /* Check validity of the object */
dylancachan 0:6ce9c65992e5 3225 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3226 if (fp->flag & FA__ERROR) { /* Check abort flag */
dylancachan 0:6ce9c65992e5 3227 res = FR_INT_ERR;
dylancachan 0:6ce9c65992e5 3228 } else {
dylancachan 0:6ce9c65992e5 3229 if (!(fp->flag & FA_WRITE)) /* Check access mode */
dylancachan 0:6ce9c65992e5 3230 res = FR_DENIED;
dylancachan 0:6ce9c65992e5 3231 }
dylancachan 0:6ce9c65992e5 3232 }
dylancachan 0:6ce9c65992e5 3233 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3234 if (fp->fsize > fp->fptr) {
dylancachan 0:6ce9c65992e5 3235 fp->fsize = fp->fptr; /* Set file size to current R/W point */
dylancachan 0:6ce9c65992e5 3236 fp->flag |= FA__WRITTEN;
dylancachan 0:6ce9c65992e5 3237 if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
dylancachan 0:6ce9c65992e5 3238 res = remove_chain(fp->fs, fp->sclust);
dylancachan 0:6ce9c65992e5 3239 fp->sclust = 0;
dylancachan 0:6ce9c65992e5 3240 } else { /* When truncate a part of the file, remove remaining clusters */
dylancachan 0:6ce9c65992e5 3241 ncl = get_fat(fp->fs, fp->clust);
dylancachan 0:6ce9c65992e5 3242 res = FR_OK;
dylancachan 0:6ce9c65992e5 3243 if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 3244 if (ncl == 1) res = FR_INT_ERR;
dylancachan 0:6ce9c65992e5 3245 if (res == FR_OK && ncl < fp->fs->n_fatent) {
dylancachan 0:6ce9c65992e5 3246 res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
dylancachan 0:6ce9c65992e5 3247 if (res == FR_OK) res = remove_chain(fp->fs, ncl);
dylancachan 0:6ce9c65992e5 3248 }
dylancachan 0:6ce9c65992e5 3249 }
dylancachan 0:6ce9c65992e5 3250 }
dylancachan 0:6ce9c65992e5 3251 if (res != FR_OK) fp->flag |= FA__ERROR;
dylancachan 0:6ce9c65992e5 3252 }
dylancachan 0:6ce9c65992e5 3253
dylancachan 0:6ce9c65992e5 3254 LEAVE_FF(fp->fs, res);
dylancachan 0:6ce9c65992e5 3255 }
dylancachan 0:6ce9c65992e5 3256
dylancachan 0:6ce9c65992e5 3257
dylancachan 0:6ce9c65992e5 3258
dylancachan 0:6ce9c65992e5 3259
dylancachan 0:6ce9c65992e5 3260 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3261 /* Delete a File or Directory */
dylancachan 0:6ce9c65992e5 3262 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3263
dylancachan 0:6ce9c65992e5 3264 FRESULT f_unlink (
dylancachan 0:6ce9c65992e5 3265 const TCHAR *path /* Pointer to the file or directory path */
dylancachan 0:6ce9c65992e5 3266 )
dylancachan 0:6ce9c65992e5 3267 {
dylancachan 0:6ce9c65992e5 3268 FRESULT res;
dylancachan 0:6ce9c65992e5 3269 FATFS_DIR dj, sdj;
dylancachan 0:6ce9c65992e5 3270 BYTE *dir;
dylancachan 0:6ce9c65992e5 3271 DWORD dclst;
dylancachan 0:6ce9c65992e5 3272 DEF_NAMEBUF;
dylancachan 0:6ce9c65992e5 3273
dylancachan 0:6ce9c65992e5 3274
dylancachan 0:6ce9c65992e5 3275 res = chk_mounted(&path, &dj.fs, 1);
dylancachan 0:6ce9c65992e5 3276 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3277 INIT_BUF(dj);
dylancachan 0:6ce9c65992e5 3278 res = follow_path(&dj, path); /* Follow the file path */
dylancachan 0:6ce9c65992e5 3279 if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
dylancachan 0:6ce9c65992e5 3280 res = FR_INVALID_NAME; /* Cannot remove dot entry */
dylancachan 0:6ce9c65992e5 3281 #if _FS_LOCK
dylancachan 0:6ce9c65992e5 3282 if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open file */
dylancachan 0:6ce9c65992e5 3283 #endif
dylancachan 0:6ce9c65992e5 3284 if (res == FR_OK) { /* The object is accessible */
dylancachan 0:6ce9c65992e5 3285 dir = dj.dir;
dylancachan 0:6ce9c65992e5 3286 if (!dir) {
dylancachan 0:6ce9c65992e5 3287 res = FR_INVALID_NAME; /* Cannot remove the start directory */
dylancachan 0:6ce9c65992e5 3288 } else {
dylancachan 0:6ce9c65992e5 3289 if (dir[DIR_Attr] & AM_RDO)
dylancachan 0:6ce9c65992e5 3290 res = FR_DENIED; /* Cannot remove R/O object */
dylancachan 0:6ce9c65992e5 3291 }
dylancachan 0:6ce9c65992e5 3292 dclst = ld_clust(dj.fs, dir);
dylancachan 0:6ce9c65992e5 3293 if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-dir? */
dylancachan 0:6ce9c65992e5 3294 if (dclst < 2) {
dylancachan 0:6ce9c65992e5 3295 res = FR_INT_ERR;
dylancachan 0:6ce9c65992e5 3296 } else {
dylancachan 0:6ce9c65992e5 3297 mem_cpy(&sdj, &dj, sizeof (FATFS_DIR)); /* Check if the sub-dir is empty or not */
dylancachan 0:6ce9c65992e5 3298 sdj.sclust = dclst;
dylancachan 0:6ce9c65992e5 3299 res = dir_sdi(&sdj, 2); /* Exclude dot entries */
dylancachan 0:6ce9c65992e5 3300 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3301 res = dir_read(&sdj);
dylancachan 0:6ce9c65992e5 3302 if (res == FR_OK /* Not empty dir */
dylancachan 0:6ce9c65992e5 3303 #if _FS_RPATH
dylancachan 0:6ce9c65992e5 3304 || dclst == dj.fs->cdir /* Current dir */
dylancachan 0:6ce9c65992e5 3305 #endif
dylancachan 0:6ce9c65992e5 3306 ) res = FR_DENIED;
dylancachan 0:6ce9c65992e5 3307 if (res == FR_NO_FILE) res = FR_OK; /* Empty */
dylancachan 0:6ce9c65992e5 3308 }
dylancachan 0:6ce9c65992e5 3309 }
dylancachan 0:6ce9c65992e5 3310 }
dylancachan 0:6ce9c65992e5 3311 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3312 res = dir_remove(&dj); /* Remove the directory entry */
dylancachan 0:6ce9c65992e5 3313 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3314 if (dclst) /* Remove the cluster chain if exist */
dylancachan 0:6ce9c65992e5 3315 res = remove_chain(dj.fs, dclst);
dylancachan 0:6ce9c65992e5 3316 if (res == FR_OK) res = sync(dj.fs);
dylancachan 0:6ce9c65992e5 3317 }
dylancachan 0:6ce9c65992e5 3318 }
dylancachan 0:6ce9c65992e5 3319 }
dylancachan 0:6ce9c65992e5 3320 FREE_BUF();
dylancachan 0:6ce9c65992e5 3321 }
dylancachan 0:6ce9c65992e5 3322 LEAVE_FF(dj.fs, res);
dylancachan 0:6ce9c65992e5 3323 }
dylancachan 0:6ce9c65992e5 3324
dylancachan 0:6ce9c65992e5 3325
dylancachan 0:6ce9c65992e5 3326
dylancachan 0:6ce9c65992e5 3327
dylancachan 0:6ce9c65992e5 3328 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3329 /* Create a Directory */
dylancachan 0:6ce9c65992e5 3330 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3331
dylancachan 0:6ce9c65992e5 3332 FRESULT f_mkdir (
dylancachan 0:6ce9c65992e5 3333 const TCHAR *path /* Pointer to the directory path */
dylancachan 0:6ce9c65992e5 3334 )
dylancachan 0:6ce9c65992e5 3335 {
dylancachan 0:6ce9c65992e5 3336 FRESULT res;
dylancachan 0:6ce9c65992e5 3337 FATFS_DIR dj;
dylancachan 0:6ce9c65992e5 3338 BYTE *dir, n;
dylancachan 0:6ce9c65992e5 3339 DWORD dsc, dcl, pcl, tim = get_fattime();
dylancachan 0:6ce9c65992e5 3340 DEF_NAMEBUF;
dylancachan 0:6ce9c65992e5 3341
dylancachan 0:6ce9c65992e5 3342
dylancachan 0:6ce9c65992e5 3343 res = chk_mounted(&path, &dj.fs, 1);
dylancachan 0:6ce9c65992e5 3344 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3345 INIT_BUF(dj);
dylancachan 0:6ce9c65992e5 3346 res = follow_path(&dj, path); /* Follow the file path */
dylancachan 0:6ce9c65992e5 3347 if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
dylancachan 0:6ce9c65992e5 3348 if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
dylancachan 0:6ce9c65992e5 3349 res = FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 3350 if (res == FR_NO_FILE) { /* Can create a new directory */
dylancachan 0:6ce9c65992e5 3351 dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
dylancachan 0:6ce9c65992e5 3352 res = FR_OK;
dylancachan 0:6ce9c65992e5 3353 if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
dylancachan 0:6ce9c65992e5 3354 if (dcl == 1) res = FR_INT_ERR;
dylancachan 0:6ce9c65992e5 3355 if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 3356 if (res == FR_OK) /* Flush FAT */
dylancachan 0:6ce9c65992e5 3357 res = move_window(dj.fs, 0);
dylancachan 0:6ce9c65992e5 3358 if (res == FR_OK) { /* Initialize the new directory table */
dylancachan 0:6ce9c65992e5 3359 dsc = clust2sect(dj.fs, dcl);
dylancachan 0:6ce9c65992e5 3360 dir = dj.fs->win;
dylancachan 0:6ce9c65992e5 3361 mem_set(dir, 0, SS(dj.fs));
dylancachan 0:6ce9c65992e5 3362 mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */
dylancachan 0:6ce9c65992e5 3363 dir[DIR_Name] = '.';
dylancachan 0:6ce9c65992e5 3364 dir[DIR_Attr] = AM_DIR;
dylancachan 0:6ce9c65992e5 3365 ST_DWORD(dir+DIR_WrtTime, tim);
dylancachan 0:6ce9c65992e5 3366 st_clust(dir, dcl);
dylancachan 0:6ce9c65992e5 3367 mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
dylancachan 0:6ce9c65992e5 3368 dir[33] = '.'; pcl = dj.sclust;
dylancachan 0:6ce9c65992e5 3369 if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
dylancachan 0:6ce9c65992e5 3370 pcl = 0;
dylancachan 0:6ce9c65992e5 3371 st_clust(dir+SZ_DIR, pcl);
dylancachan 0:6ce9c65992e5 3372 for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
dylancachan 0:6ce9c65992e5 3373 dj.fs->winsect = dsc++;
dylancachan 0:6ce9c65992e5 3374 dj.fs->wflag = 1;
dylancachan 0:6ce9c65992e5 3375 res = move_window(dj.fs, 0);
dylancachan 0:6ce9c65992e5 3376 if (res != FR_OK) break;
dylancachan 0:6ce9c65992e5 3377 mem_set(dir, 0, SS(dj.fs));
dylancachan 0:6ce9c65992e5 3378 }
dylancachan 0:6ce9c65992e5 3379 }
dylancachan 0:6ce9c65992e5 3380 if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
dylancachan 0:6ce9c65992e5 3381 if (res != FR_OK) {
dylancachan 0:6ce9c65992e5 3382 remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
dylancachan 0:6ce9c65992e5 3383 } else {
dylancachan 0:6ce9c65992e5 3384 dir = dj.dir;
dylancachan 0:6ce9c65992e5 3385 dir[DIR_Attr] = AM_DIR; /* Attribute */
dylancachan 0:6ce9c65992e5 3386 ST_DWORD(dir+DIR_WrtTime, tim); /* Created time */
dylancachan 0:6ce9c65992e5 3387 st_clust(dir, dcl); /* Table start cluster */
dylancachan 0:6ce9c65992e5 3388 dj.fs->wflag = 1;
dylancachan 0:6ce9c65992e5 3389 res = sync(dj.fs);
dylancachan 0:6ce9c65992e5 3390 }
dylancachan 0:6ce9c65992e5 3391 }
dylancachan 0:6ce9c65992e5 3392 FREE_BUF();
dylancachan 0:6ce9c65992e5 3393 }
dylancachan 0:6ce9c65992e5 3394
dylancachan 0:6ce9c65992e5 3395 LEAVE_FF(dj.fs, res);
dylancachan 0:6ce9c65992e5 3396 }
dylancachan 0:6ce9c65992e5 3397
dylancachan 0:6ce9c65992e5 3398
dylancachan 0:6ce9c65992e5 3399
dylancachan 0:6ce9c65992e5 3400
dylancachan 0:6ce9c65992e5 3401 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3402 /* Change Attribute */
dylancachan 0:6ce9c65992e5 3403 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3404
dylancachan 0:6ce9c65992e5 3405 FRESULT f_chmod (
dylancachan 0:6ce9c65992e5 3406 const TCHAR *path, /* Pointer to the file path */
dylancachan 0:6ce9c65992e5 3407 BYTE value, /* Attribute bits */
dylancachan 0:6ce9c65992e5 3408 BYTE mask /* Attribute mask to change */
dylancachan 0:6ce9c65992e5 3409 )
dylancachan 0:6ce9c65992e5 3410 {
dylancachan 0:6ce9c65992e5 3411 FRESULT res;
dylancachan 0:6ce9c65992e5 3412 FATFS_DIR dj;
dylancachan 0:6ce9c65992e5 3413 BYTE *dir;
dylancachan 0:6ce9c65992e5 3414 DEF_NAMEBUF;
dylancachan 0:6ce9c65992e5 3415
dylancachan 0:6ce9c65992e5 3416
dylancachan 0:6ce9c65992e5 3417 res = chk_mounted(&path, &dj.fs, 1);
dylancachan 0:6ce9c65992e5 3418 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3419 INIT_BUF(dj);
dylancachan 0:6ce9c65992e5 3420 res = follow_path(&dj, path); /* Follow the file path */
dylancachan 0:6ce9c65992e5 3421 FREE_BUF();
dylancachan 0:6ce9c65992e5 3422 if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
dylancachan 0:6ce9c65992e5 3423 res = FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 3424 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3425 dir = dj.dir;
dylancachan 0:6ce9c65992e5 3426 if (!dir) { /* Is it a root directory? */
dylancachan 0:6ce9c65992e5 3427 res = FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 3428 } else { /* File or sub directory */
dylancachan 0:6ce9c65992e5 3429 mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */
dylancachan 0:6ce9c65992e5 3430 dir[DIR_Attr] = (value & mask) | (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
dylancachan 0:6ce9c65992e5 3431 dj.fs->wflag = 1;
dylancachan 0:6ce9c65992e5 3432 res = sync(dj.fs);
dylancachan 0:6ce9c65992e5 3433 }
dylancachan 0:6ce9c65992e5 3434 }
dylancachan 0:6ce9c65992e5 3435 }
dylancachan 0:6ce9c65992e5 3436
dylancachan 0:6ce9c65992e5 3437 LEAVE_FF(dj.fs, res);
dylancachan 0:6ce9c65992e5 3438 }
dylancachan 0:6ce9c65992e5 3439
dylancachan 0:6ce9c65992e5 3440
dylancachan 0:6ce9c65992e5 3441
dylancachan 0:6ce9c65992e5 3442
dylancachan 0:6ce9c65992e5 3443 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3444 /* Change Timestamp */
dylancachan 0:6ce9c65992e5 3445 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3446
dylancachan 0:6ce9c65992e5 3447 FRESULT f_utime (
dylancachan 0:6ce9c65992e5 3448 const TCHAR *path, /* Pointer to the file/directory name */
dylancachan 0:6ce9c65992e5 3449 const FILINFO *fno /* Pointer to the time stamp to be set */
dylancachan 0:6ce9c65992e5 3450 )
dylancachan 0:6ce9c65992e5 3451 {
dylancachan 0:6ce9c65992e5 3452 FRESULT res;
dylancachan 0:6ce9c65992e5 3453 FATFS_DIR dj;
dylancachan 0:6ce9c65992e5 3454 BYTE *dir;
dylancachan 0:6ce9c65992e5 3455 DEF_NAMEBUF;
dylancachan 0:6ce9c65992e5 3456
dylancachan 0:6ce9c65992e5 3457
dylancachan 0:6ce9c65992e5 3458 res = chk_mounted(&path, &dj.fs, 1);
dylancachan 0:6ce9c65992e5 3459 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3460 INIT_BUF(dj);
dylancachan 0:6ce9c65992e5 3461 res = follow_path(&dj, path); /* Follow the file path */
dylancachan 0:6ce9c65992e5 3462 FREE_BUF();
dylancachan 0:6ce9c65992e5 3463 if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
dylancachan 0:6ce9c65992e5 3464 res = FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 3465 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3466 dir = dj.dir;
dylancachan 0:6ce9c65992e5 3467 if (!dir) { /* Root directory */
dylancachan 0:6ce9c65992e5 3468 res = FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 3469 } else { /* File or sub-directory */
dylancachan 0:6ce9c65992e5 3470 ST_WORD(dir+DIR_WrtTime, fno->ftime);
dylancachan 0:6ce9c65992e5 3471 ST_WORD(dir+DIR_WrtDate, fno->fdate);
dylancachan 0:6ce9c65992e5 3472 dj.fs->wflag = 1;
dylancachan 0:6ce9c65992e5 3473 res = sync(dj.fs);
dylancachan 0:6ce9c65992e5 3474 }
dylancachan 0:6ce9c65992e5 3475 }
dylancachan 0:6ce9c65992e5 3476 }
dylancachan 0:6ce9c65992e5 3477
dylancachan 0:6ce9c65992e5 3478 LEAVE_FF(dj.fs, res);
dylancachan 0:6ce9c65992e5 3479 }
dylancachan 0:6ce9c65992e5 3480
dylancachan 0:6ce9c65992e5 3481
dylancachan 0:6ce9c65992e5 3482
dylancachan 0:6ce9c65992e5 3483
dylancachan 0:6ce9c65992e5 3484 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3485 /* Rename File/Directory */
dylancachan 0:6ce9c65992e5 3486 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3487
dylancachan 0:6ce9c65992e5 3488 FRESULT f_rename (
dylancachan 0:6ce9c65992e5 3489 const TCHAR *path_old, /* Pointer to the old name */
dylancachan 0:6ce9c65992e5 3490 const TCHAR *path_new /* Pointer to the new name */
dylancachan 0:6ce9c65992e5 3491 )
dylancachan 0:6ce9c65992e5 3492 {
dylancachan 0:6ce9c65992e5 3493 FRESULT res;
dylancachan 0:6ce9c65992e5 3494 FATFS_DIR djo, djn;
dylancachan 0:6ce9c65992e5 3495 BYTE buf[21], *dir;
dylancachan 0:6ce9c65992e5 3496 DWORD dw;
dylancachan 0:6ce9c65992e5 3497 DEF_NAMEBUF;
dylancachan 0:6ce9c65992e5 3498
dylancachan 0:6ce9c65992e5 3499
dylancachan 0:6ce9c65992e5 3500 res = chk_mounted(&path_old, &djo.fs, 1);
dylancachan 0:6ce9c65992e5 3501 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3502 djn.fs = djo.fs;
dylancachan 0:6ce9c65992e5 3503 INIT_BUF(djo);
dylancachan 0:6ce9c65992e5 3504 res = follow_path(&djo, path_old); /* Check old object */
dylancachan 0:6ce9c65992e5 3505 if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
dylancachan 0:6ce9c65992e5 3506 res = FR_INVALID_NAME;
dylancachan 0:6ce9c65992e5 3507 #if _FS_LOCK
dylancachan 0:6ce9c65992e5 3508 if (res == FR_OK) res = chk_lock(&djo, 2);
dylancachan 0:6ce9c65992e5 3509 #endif
dylancachan 0:6ce9c65992e5 3510 if (res == FR_OK) { /* Old object is found */
dylancachan 0:6ce9c65992e5 3511 if (!djo.dir) { /* Is root dir? */
dylancachan 0:6ce9c65992e5 3512 res = FR_NO_FILE;
dylancachan 0:6ce9c65992e5 3513 } else {
dylancachan 0:6ce9c65992e5 3514 mem_cpy(buf, djo.dir+DIR_Attr, 21); /* Save the object information except for name */
dylancachan 0:6ce9c65992e5 3515 mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Check new object */
dylancachan 0:6ce9c65992e5 3516 res = follow_path(&djn, path_new);
dylancachan 0:6ce9c65992e5 3517 if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
dylancachan 0:6ce9c65992e5 3518 if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
dylancachan 0:6ce9c65992e5 3519 /* Start critical section that an interruption or error can cause cross-link */
dylancachan 0:6ce9c65992e5 3520 res = dir_register(&djn); /* Register the new entry */
dylancachan 0:6ce9c65992e5 3521 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3522 dir = djn.dir; /* Copy object information except for name */
dylancachan 0:6ce9c65992e5 3523 mem_cpy(dir+13, buf+2, 19);
dylancachan 0:6ce9c65992e5 3524 dir[DIR_Attr] = buf[0] | AM_ARC;
dylancachan 0:6ce9c65992e5 3525 djo.fs->wflag = 1;
dylancachan 0:6ce9c65992e5 3526 if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) { /* Update .. entry in the directory if needed */
dylancachan 0:6ce9c65992e5 3527 dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
dylancachan 0:6ce9c65992e5 3528 if (!dw) {
dylancachan 0:6ce9c65992e5 3529 res = FR_INT_ERR;
dylancachan 0:6ce9c65992e5 3530 } else {
dylancachan 0:6ce9c65992e5 3531 res = move_window(djo.fs, dw);
dylancachan 0:6ce9c65992e5 3532 dir = djo.fs->win+SZ_DIR; /* .. entry */
dylancachan 0:6ce9c65992e5 3533 if (res == FR_OK && dir[1] == '.') {
dylancachan 0:6ce9c65992e5 3534 dw = (djo.fs->fs_type == FS_FAT32 && djn.sclust == djo.fs->dirbase) ? 0 : djn.sclust;
dylancachan 0:6ce9c65992e5 3535 st_clust(dir, dw);
dylancachan 0:6ce9c65992e5 3536 djo.fs->wflag = 1;
dylancachan 0:6ce9c65992e5 3537 }
dylancachan 0:6ce9c65992e5 3538 }
dylancachan 0:6ce9c65992e5 3539 }
dylancachan 0:6ce9c65992e5 3540 if (res == FR_OK) {
dylancachan 0:6ce9c65992e5 3541 res = dir_remove(&djo); /* Remove old entry */
dylancachan 0:6ce9c65992e5 3542 if (res == FR_OK)
dylancachan 0:6ce9c65992e5 3543 res = sync(djo.fs);
dylancachan 0:6ce9c65992e5 3544 }
dylancachan 0:6ce9c65992e5 3545 }
dylancachan 0:6ce9c65992e5 3546 /* End critical section */
dylancachan 0:6ce9c65992e5 3547 }
dylancachan 0:6ce9c65992e5 3548 }
dylancachan 0:6ce9c65992e5 3549 }
dylancachan 0:6ce9c65992e5 3550 FREE_BUF();
dylancachan 0:6ce9c65992e5 3551 }
dylancachan 0:6ce9c65992e5 3552 LEAVE_FF(djo.fs, res);
dylancachan 0:6ce9c65992e5 3553 }
dylancachan 0:6ce9c65992e5 3554
dylancachan 0:6ce9c65992e5 3555 #endif /* !_FS_READONLY */
dylancachan 0:6ce9c65992e5 3556 #endif /* _FS_MINIMIZE == 0 */
dylancachan 0:6ce9c65992e5 3557 #endif /* _FS_MINIMIZE <= 1 */
dylancachan 0:6ce9c65992e5 3558 #endif /* _FS_MINIMIZE <= 2 */
dylancachan 0:6ce9c65992e5 3559
dylancachan 0:6ce9c65992e5 3560
dylancachan 0:6ce9c65992e5 3561
dylancachan 0:6ce9c65992e5 3562 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3563 /* Forward data to the stream directly (available on only tiny cfg) */
dylancachan 0:6ce9c65992e5 3564 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3565 #if _USE_FORWARD && _FS_TINY
dylancachan 0:6ce9c65992e5 3566
dylancachan 0:6ce9c65992e5 3567 FRESULT f_forward (
dylancachan 0:6ce9c65992e5 3568 FIL *fp, /* Pointer to the file object */
dylancachan 0:6ce9c65992e5 3569 UINT (*func)(const BYTE*,UINT), /* Pointer to the streaming function */
dylancachan 0:6ce9c65992e5 3570 UINT btr, /* Number of bytes to forward */
dylancachan 0:6ce9c65992e5 3571 UINT *bf /* Pointer to number of bytes forwarded */
dylancachan 0:6ce9c65992e5 3572 )
dylancachan 0:6ce9c65992e5 3573 {
dylancachan 0:6ce9c65992e5 3574 FRESULT res;
dylancachan 0:6ce9c65992e5 3575 DWORD remain, clst, sect;
dylancachan 0:6ce9c65992e5 3576 UINT rcnt;
dylancachan 0:6ce9c65992e5 3577 BYTE csect;
dylancachan 0:6ce9c65992e5 3578
dylancachan 0:6ce9c65992e5 3579
dylancachan 0:6ce9c65992e5 3580 *bf = 0; /* Clear transfer byte counter */
dylancachan 0:6ce9c65992e5 3581
dylancachan 0:6ce9c65992e5 3582 if (!fp) return FR_INVALID_OBJECT;
dylancachan 0:6ce9c65992e5 3583
dylancachan 0:6ce9c65992e5 3584 res = validate(fp); /* Check validity of the object */
dylancachan 0:6ce9c65992e5 3585 if (res != FR_OK) LEAVE_FF(fp->fs, res);
dylancachan 0:6ce9c65992e5 3586 if (fp->flag & FA__ERROR) /* Check error flag */
dylancachan 0:6ce9c65992e5 3587 LEAVE_FF(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 3588 if (!(fp->flag & FA_READ)) /* Check access mode */
dylancachan 0:6ce9c65992e5 3589 LEAVE_FF(fp->fs, FR_DENIED);
dylancachan 0:6ce9c65992e5 3590
dylancachan 0:6ce9c65992e5 3591 remain = fp->fsize - fp->fptr;
dylancachan 0:6ce9c65992e5 3592 if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
dylancachan 0:6ce9c65992e5 3593
dylancachan 0:6ce9c65992e5 3594 for ( ; btr && (*func)(0, 0); /* Repeat until all data transferred or stream becomes busy */
dylancachan 0:6ce9c65992e5 3595 fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
dylancachan 0:6ce9c65992e5 3596 csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
dylancachan 0:6ce9c65992e5 3597 if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
dylancachan 0:6ce9c65992e5 3598 if (!csect) { /* On the cluster boundary? */
dylancachan 0:6ce9c65992e5 3599 clst = (fp->fptr == 0) ? /* On the top of the file? */
dylancachan 0:6ce9c65992e5 3600 fp->sclust : get_fat(fp->fs, fp->clust);
dylancachan 0:6ce9c65992e5 3601 if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 3602 if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 3603 fp->clust = clst; /* Update current cluster */
dylancachan 0:6ce9c65992e5 3604 }
dylancachan 0:6ce9c65992e5 3605 }
dylancachan 0:6ce9c65992e5 3606 sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
dylancachan 0:6ce9c65992e5 3607 if (!sect) ABORT(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 3608 sect += csect;
dylancachan 0:6ce9c65992e5 3609 if (move_window(fp->fs, sect)) /* Move sector window */
dylancachan 0:6ce9c65992e5 3610 ABORT(fp->fs, FR_DISK_ERR);
dylancachan 0:6ce9c65992e5 3611 fp->dsect = sect;
dylancachan 0:6ce9c65992e5 3612 rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
dylancachan 0:6ce9c65992e5 3613 if (rcnt > btr) rcnt = btr;
dylancachan 0:6ce9c65992e5 3614 rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
dylancachan 0:6ce9c65992e5 3615 if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
dylancachan 0:6ce9c65992e5 3616 }
dylancachan 0:6ce9c65992e5 3617
dylancachan 0:6ce9c65992e5 3618 LEAVE_FF(fp->fs, FR_OK);
dylancachan 0:6ce9c65992e5 3619 }
dylancachan 0:6ce9c65992e5 3620 #endif /* _USE_FORWARD */
dylancachan 0:6ce9c65992e5 3621
dylancachan 0:6ce9c65992e5 3622
dylancachan 0:6ce9c65992e5 3623
dylancachan 0:6ce9c65992e5 3624 #if _USE_MKFS && !_FS_READONLY
dylancachan 0:6ce9c65992e5 3625 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3626 /* Create File System on the Drive */
dylancachan 0:6ce9c65992e5 3627 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3628 #define N_ROOTDIR 512 /* Number of root dir entries for FAT12/16 */
dylancachan 0:6ce9c65992e5 3629 #define N_FATS 1 /* Number of FAT copies (1 or 2) */
dylancachan 0:6ce9c65992e5 3630
dylancachan 0:6ce9c65992e5 3631
dylancachan 0:6ce9c65992e5 3632 FRESULT f_mkfs (
dylancachan 0:6ce9c65992e5 3633 BYTE drv, /* Logical drive number */
dylancachan 0:6ce9c65992e5 3634 BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
dylancachan 0:6ce9c65992e5 3635 UINT au /* Allocation unit size [bytes] */
dylancachan 0:6ce9c65992e5 3636 )
dylancachan 0:6ce9c65992e5 3637 {
dylancachan 0:6ce9c65992e5 3638 static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
dylancachan 0:6ce9c65992e5 3639 static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
dylancachan 0:6ce9c65992e5 3640 BYTE fmt, md, sys, *tbl, pdrv, part;
dylancachan 0:6ce9c65992e5 3641 DWORD n_clst, vs, n, wsect;
dylancachan 0:6ce9c65992e5 3642 UINT i;
dylancachan 0:6ce9c65992e5 3643 DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
dylancachan 0:6ce9c65992e5 3644 DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
dylancachan 0:6ce9c65992e5 3645 FATFS *fs;
dylancachan 0:6ce9c65992e5 3646 DSTATUS stat;
dylancachan 0:6ce9c65992e5 3647
dylancachan 0:6ce9c65992e5 3648
dylancachan 0:6ce9c65992e5 3649 /* Check mounted drive and clear work area */
dylancachan 0:6ce9c65992e5 3650 if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
dylancachan 0:6ce9c65992e5 3651 if (sfd > 1) return FR_INVALID_PARAMETER;
dylancachan 0:6ce9c65992e5 3652 if (au & (au - 1)) return FR_INVALID_PARAMETER;
dylancachan 0:6ce9c65992e5 3653 fs = FatFs[drv];
dylancachan 0:6ce9c65992e5 3654 if (!fs) return FR_NOT_ENABLED;
dylancachan 0:6ce9c65992e5 3655 fs->fs_type = 0;
dylancachan 0:6ce9c65992e5 3656 pdrv = LD2PD(drv); /* Physical drive */
dylancachan 0:6ce9c65992e5 3657 part = LD2PT(drv); /* Partition (0:auto detect, 1-4:get from partition table)*/
dylancachan 0:6ce9c65992e5 3658
dylancachan 0:6ce9c65992e5 3659 /* Get disk statics */
dylancachan 0:6ce9c65992e5 3660 stat = disk_initialize(pdrv);
dylancachan 0:6ce9c65992e5 3661 if (stat & STA_NOINIT) return FR_NOT_READY;
dylancachan 0:6ce9c65992e5 3662 if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
dylancachan 0:6ce9c65992e5 3663 #if _MAX_SS != 512 /* Get disk sector size */
dylancachan 0:6ce9c65992e5 3664 if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK || SS(fs) > _MAX_SS)
dylancachan 0:6ce9c65992e5 3665 return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 3666 #endif
dylancachan 0:6ce9c65992e5 3667 if (_MULTI_PARTITION && part) {
dylancachan 0:6ce9c65992e5 3668 /* Get partition information from partition table in the MBR */
dylancachan 0:6ce9c65992e5 3669 if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 3670 if (LD_WORD(fs->win+BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
dylancachan 0:6ce9c65992e5 3671 tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
dylancachan 0:6ce9c65992e5 3672 if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
dylancachan 0:6ce9c65992e5 3673 b_vol = LD_DWORD(tbl+8); /* Volume start sector */
dylancachan 0:6ce9c65992e5 3674 n_vol = LD_DWORD(tbl+12); /* Volume size */
dylancachan 0:6ce9c65992e5 3675 } else {
dylancachan 0:6ce9c65992e5 3676 /* Create a partition in this function */
dylancachan 0:6ce9c65992e5 3677 if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK || n_vol < 128)
dylancachan 0:6ce9c65992e5 3678 return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 3679 b_vol = (sfd) ? 0 : 63; /* Volume start sector */
dylancachan 0:6ce9c65992e5 3680 n_vol -= b_vol; /* Volume size */
dylancachan 0:6ce9c65992e5 3681 }
dylancachan 0:6ce9c65992e5 3682
dylancachan 0:6ce9c65992e5 3683 if (!au) { /* AU auto selection */
dylancachan 0:6ce9c65992e5 3684 vs = n_vol / (2000 / (SS(fs) / 512));
dylancachan 0:6ce9c65992e5 3685 for (i = 0; vs < vst[i]; i++) ;
dylancachan 0:6ce9c65992e5 3686 au = cst[i];
dylancachan 0:6ce9c65992e5 3687 }
dylancachan 0:6ce9c65992e5 3688 au /= SS(fs); /* Number of sectors per cluster */
dylancachan 0:6ce9c65992e5 3689 if (au == 0) au = 1;
dylancachan 0:6ce9c65992e5 3690 if (au > 128) au = 128;
dylancachan 0:6ce9c65992e5 3691
dylancachan 0:6ce9c65992e5 3692 /* Pre-compute number of clusters and FAT sub-type */
dylancachan 0:6ce9c65992e5 3693 n_clst = n_vol / au;
dylancachan 0:6ce9c65992e5 3694 fmt = FS_FAT12;
dylancachan 0:6ce9c65992e5 3695 if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
dylancachan 0:6ce9c65992e5 3696 if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
dylancachan 0:6ce9c65992e5 3697
dylancachan 0:6ce9c65992e5 3698 /* Determine offset and size of FAT structure */
dylancachan 0:6ce9c65992e5 3699 if (fmt == FS_FAT32) {
dylancachan 0:6ce9c65992e5 3700 n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
dylancachan 0:6ce9c65992e5 3701 n_rsv = 32;
dylancachan 0:6ce9c65992e5 3702 n_dir = 0;
dylancachan 0:6ce9c65992e5 3703 } else {
dylancachan 0:6ce9c65992e5 3704 n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
dylancachan 0:6ce9c65992e5 3705 n_fat = (n_fat + SS(fs) - 1) / SS(fs);
dylancachan 0:6ce9c65992e5 3706 n_rsv = 1;
dylancachan 0:6ce9c65992e5 3707 n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
dylancachan 0:6ce9c65992e5 3708 }
dylancachan 0:6ce9c65992e5 3709 b_fat = b_vol + n_rsv; /* FAT area start sector */
dylancachan 0:6ce9c65992e5 3710 b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
dylancachan 0:6ce9c65992e5 3711 b_data = b_dir + n_dir; /* Data area start sector */
dylancachan 0:6ce9c65992e5 3712 if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
dylancachan 0:6ce9c65992e5 3713
dylancachan 0:6ce9c65992e5 3714 /* Align data start sector to erase block boundary (for flash memory media) */
dylancachan 0:6ce9c65992e5 3715 if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK || !n || n > 32768) n = 1;
dylancachan 0:6ce9c65992e5 3716 n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
dylancachan 0:6ce9c65992e5 3717 n = (n - b_data) / N_FATS;
dylancachan 0:6ce9c65992e5 3718 if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
dylancachan 0:6ce9c65992e5 3719 n_rsv += n;
dylancachan 0:6ce9c65992e5 3720 b_fat += n;
dylancachan 0:6ce9c65992e5 3721 } else { /* FAT12/16: Expand FAT size */
dylancachan 0:6ce9c65992e5 3722 n_fat += n;
dylancachan 0:6ce9c65992e5 3723 }
dylancachan 0:6ce9c65992e5 3724
dylancachan 0:6ce9c65992e5 3725 /* Determine number of clusters and final check of validity of the FAT sub-type */
dylancachan 0:6ce9c65992e5 3726 n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
dylancachan 0:6ce9c65992e5 3727 if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
dylancachan 0:6ce9c65992e5 3728 || (fmt == FS_FAT32 && n_clst < MIN_FAT32))
dylancachan 0:6ce9c65992e5 3729 return FR_MKFS_ABORTED;
dylancachan 0:6ce9c65992e5 3730
dylancachan 0:6ce9c65992e5 3731 switch (fmt) { /* Determine system ID for partition table */
dylancachan 0:6ce9c65992e5 3732 case FS_FAT12: sys = 0x01; break;
dylancachan 0:6ce9c65992e5 3733 case FS_FAT16: sys = (n_vol < 0x10000) ? 0x04 : 0x06; break;
dylancachan 0:6ce9c65992e5 3734 default: sys = 0x0C;
dylancachan 0:6ce9c65992e5 3735 }
dylancachan 0:6ce9c65992e5 3736
dylancachan 0:6ce9c65992e5 3737 if (_MULTI_PARTITION && part) {
dylancachan 0:6ce9c65992e5 3738 /* Update system ID in the partition table */
dylancachan 0:6ce9c65992e5 3739 tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
dylancachan 0:6ce9c65992e5 3740 tbl[4] = sys;
dylancachan 0:6ce9c65992e5 3741 if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 3742 md = 0xF8;
dylancachan 0:6ce9c65992e5 3743 } else {
dylancachan 0:6ce9c65992e5 3744 if (sfd) { /* No partition table (SFD) */
dylancachan 0:6ce9c65992e5 3745 md = 0xF0;
dylancachan 0:6ce9c65992e5 3746 } else { /* Create partition table (FDISK) */
dylancachan 0:6ce9c65992e5 3747 mem_set(fs->win, 0, SS(fs));
dylancachan 0:6ce9c65992e5 3748 tbl = fs->win+MBR_Table; /* Create partition table for single partition in the drive */
dylancachan 0:6ce9c65992e5 3749 tbl[1] = 1; /* Partition start head */
dylancachan 0:6ce9c65992e5 3750 tbl[2] = 1; /* Partition start sector */
dylancachan 0:6ce9c65992e5 3751 tbl[3] = 0; /* Partition start cylinder */
dylancachan 0:6ce9c65992e5 3752 tbl[4] = sys; /* System type */
dylancachan 0:6ce9c65992e5 3753 tbl[5] = 254; /* Partition end head */
dylancachan 0:6ce9c65992e5 3754 n = (b_vol + n_vol) / 63 / 255;
dylancachan 0:6ce9c65992e5 3755 tbl[6] = (BYTE)((n >> 2) | 63); /* Partition end sector */
dylancachan 0:6ce9c65992e5 3756 tbl[7] = (BYTE)n; /* End cylinder */
dylancachan 0:6ce9c65992e5 3757 ST_DWORD(tbl+8, 63); /* Partition start in LBA */
dylancachan 0:6ce9c65992e5 3758 ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
dylancachan 0:6ce9c65992e5 3759 ST_WORD(fs->win+BS_55AA, 0xAA55); /* MBR signature */
dylancachan 0:6ce9c65992e5 3760 if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR sector */
dylancachan 0:6ce9c65992e5 3761 return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 3762 md = 0xF8;
dylancachan 0:6ce9c65992e5 3763 }
dylancachan 0:6ce9c65992e5 3764 }
dylancachan 0:6ce9c65992e5 3765
dylancachan 0:6ce9c65992e5 3766 /* Create BPB in the VBR */
dylancachan 0:6ce9c65992e5 3767 tbl = fs->win; /* Clear sector */
dylancachan 0:6ce9c65992e5 3768 mem_set(tbl, 0, SS(fs));
dylancachan 0:6ce9c65992e5 3769 mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
dylancachan 0:6ce9c65992e5 3770 i = SS(fs); /* Sector size */
dylancachan 0:6ce9c65992e5 3771 ST_WORD(tbl+BPB_BytsPerSec, i);
dylancachan 0:6ce9c65992e5 3772 tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
dylancachan 0:6ce9c65992e5 3773 ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
dylancachan 0:6ce9c65992e5 3774 tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
dylancachan 0:6ce9c65992e5 3775 i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of rootdir entries */
dylancachan 0:6ce9c65992e5 3776 ST_WORD(tbl+BPB_RootEntCnt, i);
dylancachan 0:6ce9c65992e5 3777 if (n_vol < 0x10000) { /* Number of total sectors */
dylancachan 0:6ce9c65992e5 3778 ST_WORD(tbl+BPB_TotSec16, n_vol);
dylancachan 0:6ce9c65992e5 3779 } else {
dylancachan 0:6ce9c65992e5 3780 ST_DWORD(tbl+BPB_TotSec32, n_vol);
dylancachan 0:6ce9c65992e5 3781 }
dylancachan 0:6ce9c65992e5 3782 tbl[BPB_Media] = md; /* Media descriptor */
dylancachan 0:6ce9c65992e5 3783 ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
dylancachan 0:6ce9c65992e5 3784 ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
dylancachan 0:6ce9c65992e5 3785 ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
dylancachan 0:6ce9c65992e5 3786 n = get_fattime(); /* Use current time as VSN */
dylancachan 0:6ce9c65992e5 3787 if (fmt == FS_FAT32) {
dylancachan 0:6ce9c65992e5 3788 ST_DWORD(tbl+BS_VolID32, n); /* VSN */
dylancachan 0:6ce9c65992e5 3789 ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
dylancachan 0:6ce9c65992e5 3790 ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
dylancachan 0:6ce9c65992e5 3791 ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (VBR+1) */
dylancachan 0:6ce9c65992e5 3792 ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
dylancachan 0:6ce9c65992e5 3793 tbl[BS_DrvNum32] = 0x80; /* Drive number */
dylancachan 0:6ce9c65992e5 3794 tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
dylancachan 0:6ce9c65992e5 3795 mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
dylancachan 0:6ce9c65992e5 3796 } else {
dylancachan 0:6ce9c65992e5 3797 ST_DWORD(tbl+BS_VolID, n); /* VSN */
dylancachan 0:6ce9c65992e5 3798 ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
dylancachan 0:6ce9c65992e5 3799 tbl[BS_DrvNum] = 0x80; /* Drive number */
dylancachan 0:6ce9c65992e5 3800 tbl[BS_BootSig] = 0x29; /* Extended boot signature */
dylancachan 0:6ce9c65992e5 3801 mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
dylancachan 0:6ce9c65992e5 3802 }
dylancachan 0:6ce9c65992e5 3803 ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
dylancachan 0:6ce9c65992e5 3804 if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
dylancachan 0:6ce9c65992e5 3805 return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 3806 if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR+6) */
dylancachan 0:6ce9c65992e5 3807 disk_write(pdrv, tbl, b_vol + 6, 1);
dylancachan 0:6ce9c65992e5 3808
dylancachan 0:6ce9c65992e5 3809 /* Initialize FAT area */
dylancachan 0:6ce9c65992e5 3810 wsect = b_fat;
dylancachan 0:6ce9c65992e5 3811 for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
dylancachan 0:6ce9c65992e5 3812 mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
dylancachan 0:6ce9c65992e5 3813 n = md; /* Media descriptor byte */
dylancachan 0:6ce9c65992e5 3814 if (fmt != FS_FAT32) {
dylancachan 0:6ce9c65992e5 3815 n |= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
dylancachan 0:6ce9c65992e5 3816 ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
dylancachan 0:6ce9c65992e5 3817 } else {
dylancachan 0:6ce9c65992e5 3818 n |= 0xFFFFFF00;
dylancachan 0:6ce9c65992e5 3819 ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
dylancachan 0:6ce9c65992e5 3820 ST_DWORD(tbl+4, 0xFFFFFFFF);
dylancachan 0:6ce9c65992e5 3821 ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
dylancachan 0:6ce9c65992e5 3822 }
dylancachan 0:6ce9c65992e5 3823 if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
dylancachan 0:6ce9c65992e5 3824 return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 3825 mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
dylancachan 0:6ce9c65992e5 3826 for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
dylancachan 0:6ce9c65992e5 3827 if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
dylancachan 0:6ce9c65992e5 3828 return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 3829 }
dylancachan 0:6ce9c65992e5 3830 }
dylancachan 0:6ce9c65992e5 3831
dylancachan 0:6ce9c65992e5 3832 /* Initialize root directory */
dylancachan 0:6ce9c65992e5 3833 i = (fmt == FS_FAT32) ? au : n_dir;
dylancachan 0:6ce9c65992e5 3834 do {
dylancachan 0:6ce9c65992e5 3835 if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
dylancachan 0:6ce9c65992e5 3836 return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 3837 } while (--i);
dylancachan 0:6ce9c65992e5 3838
dylancachan 0:6ce9c65992e5 3839 #if _USE_ERASE /* Erase data area if needed */
dylancachan 0:6ce9c65992e5 3840 {
dylancachan 0:6ce9c65992e5 3841 DWORD eb[2];
dylancachan 0:6ce9c65992e5 3842
dylancachan 0:6ce9c65992e5 3843 eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
dylancachan 0:6ce9c65992e5 3844 disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
dylancachan 0:6ce9c65992e5 3845 }
dylancachan 0:6ce9c65992e5 3846 #endif
dylancachan 0:6ce9c65992e5 3847
dylancachan 0:6ce9c65992e5 3848 /* Create FSInfo if needed */
dylancachan 0:6ce9c65992e5 3849 if (fmt == FS_FAT32) {
dylancachan 0:6ce9c65992e5 3850 ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
dylancachan 0:6ce9c65992e5 3851 ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
dylancachan 0:6ce9c65992e5 3852 ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
dylancachan 0:6ce9c65992e5 3853 ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
dylancachan 0:6ce9c65992e5 3854 ST_WORD(tbl+BS_55AA, 0xAA55);
dylancachan 0:6ce9c65992e5 3855 disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
dylancachan 0:6ce9c65992e5 3856 disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
dylancachan 0:6ce9c65992e5 3857 }
dylancachan 0:6ce9c65992e5 3858
dylancachan 0:6ce9c65992e5 3859 return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 3860 }
dylancachan 0:6ce9c65992e5 3861
dylancachan 0:6ce9c65992e5 3862
dylancachan 0:6ce9c65992e5 3863 #if _MULTI_PARTITION == 2
dylancachan 0:6ce9c65992e5 3864 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3865 /* Divide Physical Drive */
dylancachan 0:6ce9c65992e5 3866 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3867
dylancachan 0:6ce9c65992e5 3868 FRESULT f_fdisk (
dylancachan 0:6ce9c65992e5 3869 BYTE pdrv, /* Physical drive number */
dylancachan 0:6ce9c65992e5 3870 const DWORD szt[], /* Pointer to the size table for each partitions */
dylancachan 0:6ce9c65992e5 3871 void* work /* Pointer to the working buffer */
dylancachan 0:6ce9c65992e5 3872 )
dylancachan 0:6ce9c65992e5 3873 {
dylancachan 0:6ce9c65992e5 3874 UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
dylancachan 0:6ce9c65992e5 3875 BYTE s_hd, e_hd, *p, *buf = (BYTE*)work;
dylancachan 0:6ce9c65992e5 3876 DSTATUS stat;
dylancachan 0:6ce9c65992e5 3877 DWORD sz_disk, sz_part, s_part;
dylancachan 0:6ce9c65992e5 3878
dylancachan 0:6ce9c65992e5 3879
dylancachan 0:6ce9c65992e5 3880 stat = disk_initialize(pdrv);
dylancachan 0:6ce9c65992e5 3881 if (stat & STA_NOINIT) return FR_NOT_READY;
dylancachan 0:6ce9c65992e5 3882 if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
dylancachan 0:6ce9c65992e5 3883 if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
dylancachan 0:6ce9c65992e5 3884
dylancachan 0:6ce9c65992e5 3885 /* Determine CHS in the table regardless of the drive geometry */
dylancachan 0:6ce9c65992e5 3886 for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
dylancachan 0:6ce9c65992e5 3887 if (n == 256) n--;
dylancachan 0:6ce9c65992e5 3888 e_hd = n - 1;
dylancachan 0:6ce9c65992e5 3889 sz_cyl = 63 * n;
dylancachan 0:6ce9c65992e5 3890 tot_cyl = sz_disk / sz_cyl;
dylancachan 0:6ce9c65992e5 3891
dylancachan 0:6ce9c65992e5 3892 /* Create partition table */
dylancachan 0:6ce9c65992e5 3893 mem_set(buf, 0, _MAX_SS);
dylancachan 0:6ce9c65992e5 3894 p = buf + MBR_Table; b_cyl = 0;
dylancachan 0:6ce9c65992e5 3895 for (i = 0; i < 4; i++, p += SZ_PTE) {
dylancachan 0:6ce9c65992e5 3896 p_cyl = (szt[i] <= 100) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
dylancachan 0:6ce9c65992e5 3897 if (!p_cyl) continue;
dylancachan 0:6ce9c65992e5 3898 s_part = (DWORD)sz_cyl * b_cyl;
dylancachan 0:6ce9c65992e5 3899 sz_part = (DWORD)sz_cyl * p_cyl;
dylancachan 0:6ce9c65992e5 3900 if (i == 0) { /* Exclude first track of cylinder 0 */
dylancachan 0:6ce9c65992e5 3901 s_hd = 1;
dylancachan 0:6ce9c65992e5 3902 s_part += 63; sz_part -= 63;
dylancachan 0:6ce9c65992e5 3903 } else {
dylancachan 0:6ce9c65992e5 3904 s_hd = 0;
dylancachan 0:6ce9c65992e5 3905 }
dylancachan 0:6ce9c65992e5 3906 e_cyl = b_cyl + p_cyl - 1;
dylancachan 0:6ce9c65992e5 3907 if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
dylancachan 0:6ce9c65992e5 3908
dylancachan 0:6ce9c65992e5 3909 /* Set partition table */
dylancachan 0:6ce9c65992e5 3910 p[1] = s_hd; /* Start head */
dylancachan 0:6ce9c65992e5 3911 p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
dylancachan 0:6ce9c65992e5 3912 p[3] = (BYTE)b_cyl; /* Start cylinder */
dylancachan 0:6ce9c65992e5 3913 p[4] = 0x06; /* System type (temporary setting) */
dylancachan 0:6ce9c65992e5 3914 p[5] = e_hd; /* End head */
dylancachan 0:6ce9c65992e5 3915 p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
dylancachan 0:6ce9c65992e5 3916 p[7] = (BYTE)e_cyl; /* End cylinder */
dylancachan 0:6ce9c65992e5 3917 ST_DWORD(p + 8, s_part); /* Start sector in LBA */
dylancachan 0:6ce9c65992e5 3918 ST_DWORD(p + 12, sz_part); /* Partition size */
dylancachan 0:6ce9c65992e5 3919
dylancachan 0:6ce9c65992e5 3920 /* Next partition */
dylancachan 0:6ce9c65992e5 3921 b_cyl += p_cyl;
dylancachan 0:6ce9c65992e5 3922 }
dylancachan 0:6ce9c65992e5 3923 ST_WORD(p, 0xAA55);
dylancachan 0:6ce9c65992e5 3924
dylancachan 0:6ce9c65992e5 3925 /* Write it to the MBR */
dylancachan 0:6ce9c65992e5 3926 return (disk_write(pdrv, buf, 0, 1) || disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
dylancachan 0:6ce9c65992e5 3927 }
dylancachan 0:6ce9c65992e5 3928
dylancachan 0:6ce9c65992e5 3929
dylancachan 0:6ce9c65992e5 3930 #endif /* _MULTI_PARTITION == 2 */
dylancachan 0:6ce9c65992e5 3931 #endif /* _USE_MKFS && !_FS_READONLY */
dylancachan 0:6ce9c65992e5 3932
dylancachan 0:6ce9c65992e5 3933
dylancachan 0:6ce9c65992e5 3934
dylancachan 0:6ce9c65992e5 3935
dylancachan 0:6ce9c65992e5 3936 #if _USE_STRFUNC
dylancachan 0:6ce9c65992e5 3937 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3938 /* Get a string from the file */
dylancachan 0:6ce9c65992e5 3939 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3940 TCHAR* f_gets (
dylancachan 0:6ce9c65992e5 3941 TCHAR* buff, /* Pointer to the string buffer to read */
dylancachan 0:6ce9c65992e5 3942 int len, /* Size of string buffer (characters) */
dylancachan 0:6ce9c65992e5 3943 FIL* fil /* Pointer to the file object */
dylancachan 0:6ce9c65992e5 3944 )
dylancachan 0:6ce9c65992e5 3945 {
dylancachan 0:6ce9c65992e5 3946 int n = 0;
dylancachan 0:6ce9c65992e5 3947 TCHAR c, *p = buff;
dylancachan 0:6ce9c65992e5 3948 BYTE s[2];
dylancachan 0:6ce9c65992e5 3949 UINT rc;
dylancachan 0:6ce9c65992e5 3950
dylancachan 0:6ce9c65992e5 3951
dylancachan 0:6ce9c65992e5 3952 while (n < len - 1) { /* Read bytes until buffer gets filled */
dylancachan 0:6ce9c65992e5 3953 f_read(fil, s, 1, &rc);
dylancachan 0:6ce9c65992e5 3954 if (rc != 1) break; /* Break on EOF or error */
dylancachan 0:6ce9c65992e5 3955 c = s[0];
dylancachan 0:6ce9c65992e5 3956 #if _LFN_UNICODE /* Read a character in UTF-8 encoding */
dylancachan 0:6ce9c65992e5 3957 if (c >= 0x80) {
dylancachan 0:6ce9c65992e5 3958 if (c < 0xC0) continue; /* Skip stray trailer */
dylancachan 0:6ce9c65992e5 3959 if (c < 0xE0) { /* Two-byte sequence */
dylancachan 0:6ce9c65992e5 3960 f_read(fil, s, 1, &rc);
dylancachan 0:6ce9c65992e5 3961 if (rc != 1) break;
dylancachan 0:6ce9c65992e5 3962 c = ((c & 0x1F) << 6) | (s[0] & 0x3F);
dylancachan 0:6ce9c65992e5 3963 if (c < 0x80) c = '?';
dylancachan 0:6ce9c65992e5 3964 } else {
dylancachan 0:6ce9c65992e5 3965 if (c < 0xF0) { /* Three-byte sequence */
dylancachan 0:6ce9c65992e5 3966 f_read(fil, s, 2, &rc);
dylancachan 0:6ce9c65992e5 3967 if (rc != 2) break;
dylancachan 0:6ce9c65992e5 3968 c = (c << 12) | ((s[0] & 0x3F) << 6) | (s[1] & 0x3F);
dylancachan 0:6ce9c65992e5 3969 if (c < 0x800) c = '?';
dylancachan 0:6ce9c65992e5 3970 } else { /* Reject four-byte sequence */
dylancachan 0:6ce9c65992e5 3971 c = '?';
dylancachan 0:6ce9c65992e5 3972 }
dylancachan 0:6ce9c65992e5 3973 }
dylancachan 0:6ce9c65992e5 3974 }
dylancachan 0:6ce9c65992e5 3975 #endif
dylancachan 0:6ce9c65992e5 3976 #if _USE_STRFUNC >= 2
dylancachan 0:6ce9c65992e5 3977 if (c == '\r') continue; /* Strip '\r' */
dylancachan 0:6ce9c65992e5 3978 #endif
dylancachan 0:6ce9c65992e5 3979 *p++ = c;
dylancachan 0:6ce9c65992e5 3980 n++;
dylancachan 0:6ce9c65992e5 3981 if (c == '\n') break; /* Break on EOL */
dylancachan 0:6ce9c65992e5 3982 }
dylancachan 0:6ce9c65992e5 3983 *p = 0;
dylancachan 0:6ce9c65992e5 3984 return n ? buff : 0; /* When no data read (eof or error), return with error. */
dylancachan 0:6ce9c65992e5 3985 }
dylancachan 0:6ce9c65992e5 3986
dylancachan 0:6ce9c65992e5 3987
dylancachan 0:6ce9c65992e5 3988
dylancachan 0:6ce9c65992e5 3989 #if !_FS_READONLY
dylancachan 0:6ce9c65992e5 3990 #include <stdarg.h>
dylancachan 0:6ce9c65992e5 3991 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3992 /* Put a character to the file */
dylancachan 0:6ce9c65992e5 3993 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 3994 int f_putc (
dylancachan 0:6ce9c65992e5 3995 TCHAR c, /* A character to be output */
dylancachan 0:6ce9c65992e5 3996 FIL* fil /* Pointer to the file object */
dylancachan 0:6ce9c65992e5 3997 )
dylancachan 0:6ce9c65992e5 3998 {
dylancachan 0:6ce9c65992e5 3999 UINT bw, btw;
dylancachan 0:6ce9c65992e5 4000 BYTE s[3];
dylancachan 0:6ce9c65992e5 4001
dylancachan 0:6ce9c65992e5 4002
dylancachan 0:6ce9c65992e5 4003 #if _USE_STRFUNC >= 2
dylancachan 0:6ce9c65992e5 4004 if (c == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */
dylancachan 0:6ce9c65992e5 4005 #endif
dylancachan 0:6ce9c65992e5 4006
dylancachan 0:6ce9c65992e5 4007 #if _LFN_UNICODE /* Write the character in UTF-8 encoding */
dylancachan 0:6ce9c65992e5 4008 if (c < 0x80) { /* 7-bit */
dylancachan 0:6ce9c65992e5 4009 s[0] = (BYTE)c;
dylancachan 0:6ce9c65992e5 4010 btw = 1;
dylancachan 0:6ce9c65992e5 4011 } else {
dylancachan 0:6ce9c65992e5 4012 if (c < 0x800) { /* 11-bit */
dylancachan 0:6ce9c65992e5 4013 s[0] = (BYTE)(0xC0 | (c >> 6));
dylancachan 0:6ce9c65992e5 4014 s[1] = (BYTE)(0x80 | (c & 0x3F));
dylancachan 0:6ce9c65992e5 4015 btw = 2;
dylancachan 0:6ce9c65992e5 4016 } else { /* 16-bit */
dylancachan 0:6ce9c65992e5 4017 s[0] = (BYTE)(0xE0 | (c >> 12));
dylancachan 0:6ce9c65992e5 4018 s[1] = (BYTE)(0x80 | ((c >> 6) & 0x3F));
dylancachan 0:6ce9c65992e5 4019 s[2] = (BYTE)(0x80 | (c & 0x3F));
dylancachan 0:6ce9c65992e5 4020 btw = 3;
dylancachan 0:6ce9c65992e5 4021 }
dylancachan 0:6ce9c65992e5 4022 }
dylancachan 0:6ce9c65992e5 4023 #else /* Write the character without conversion */
dylancachan 0:6ce9c65992e5 4024 s[0] = (BYTE)c;
dylancachan 0:6ce9c65992e5 4025 btw = 1;
dylancachan 0:6ce9c65992e5 4026 #endif
dylancachan 0:6ce9c65992e5 4027 f_write(fil, s, btw, &bw); /* Write the char to the file */
dylancachan 0:6ce9c65992e5 4028 return (bw == btw) ? 1 : EOF; /* Return the result */
dylancachan 0:6ce9c65992e5 4029 }
dylancachan 0:6ce9c65992e5 4030
dylancachan 0:6ce9c65992e5 4031
dylancachan 0:6ce9c65992e5 4032
dylancachan 0:6ce9c65992e5 4033
dylancachan 0:6ce9c65992e5 4034 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 4035 /* Put a string to the file */
dylancachan 0:6ce9c65992e5 4036 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 4037 int f_puts (
dylancachan 0:6ce9c65992e5 4038 const TCHAR* str, /* Pointer to the string to be output */
dylancachan 0:6ce9c65992e5 4039 FIL* fil /* Pointer to the file object */
dylancachan 0:6ce9c65992e5 4040 )
dylancachan 0:6ce9c65992e5 4041 {
dylancachan 0:6ce9c65992e5 4042 int n;
dylancachan 0:6ce9c65992e5 4043
dylancachan 0:6ce9c65992e5 4044
dylancachan 0:6ce9c65992e5 4045 for (n = 0; *str; str++, n++) {
dylancachan 0:6ce9c65992e5 4046 if (f_putc(*str, fil) == EOF) return EOF;
dylancachan 0:6ce9c65992e5 4047 }
dylancachan 0:6ce9c65992e5 4048 return n;
dylancachan 0:6ce9c65992e5 4049 }
dylancachan 0:6ce9c65992e5 4050
dylancachan 0:6ce9c65992e5 4051
dylancachan 0:6ce9c65992e5 4052
dylancachan 0:6ce9c65992e5 4053
dylancachan 0:6ce9c65992e5 4054 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 4055 /* Put a formatted string to the file */
dylancachan 0:6ce9c65992e5 4056 /*-----------------------------------------------------------------------*/
dylancachan 0:6ce9c65992e5 4057 int f_printf (
dylancachan 0:6ce9c65992e5 4058 FIL* fil, /* Pointer to the file object */
dylancachan 0:6ce9c65992e5 4059 const TCHAR* str, /* Pointer to the format string */
dylancachan 0:6ce9c65992e5 4060 ... /* Optional arguments... */
dylancachan 0:6ce9c65992e5 4061 )
dylancachan 0:6ce9c65992e5 4062 {
dylancachan 0:6ce9c65992e5 4063 va_list arp;
dylancachan 0:6ce9c65992e5 4064 BYTE f, r;
dylancachan 0:6ce9c65992e5 4065 UINT i, j, w;
dylancachan 0:6ce9c65992e5 4066 ULONG v;
dylancachan 0:6ce9c65992e5 4067 TCHAR c, d, s[16], *p;
dylancachan 0:6ce9c65992e5 4068 int res, chc, cc;
dylancachan 0:6ce9c65992e5 4069
dylancachan 0:6ce9c65992e5 4070
dylancachan 0:6ce9c65992e5 4071 va_start(arp, str);
dylancachan 0:6ce9c65992e5 4072
dylancachan 0:6ce9c65992e5 4073 for (cc = res = 0; cc != EOF; res += cc) {
dylancachan 0:6ce9c65992e5 4074 c = *str++;
dylancachan 0:6ce9c65992e5 4075 if (c == 0) break; /* End of string */
dylancachan 0:6ce9c65992e5 4076 if (c != '%') { /* Non escape character */
dylancachan 0:6ce9c65992e5 4077 cc = f_putc(c, fil);
dylancachan 0:6ce9c65992e5 4078 if (cc != EOF) cc = 1;
dylancachan 0:6ce9c65992e5 4079 continue;
dylancachan 0:6ce9c65992e5 4080 }
dylancachan 0:6ce9c65992e5 4081 w = f = 0;
dylancachan 0:6ce9c65992e5 4082 c = *str++;
dylancachan 0:6ce9c65992e5 4083 if (c == '0') { /* Flag: '0' padding */
dylancachan 0:6ce9c65992e5 4084 f = 1; c = *str++;
dylancachan 0:6ce9c65992e5 4085 } else {
dylancachan 0:6ce9c65992e5 4086 if (c == '-') { /* Flag: left justified */
dylancachan 0:6ce9c65992e5 4087 f = 2; c = *str++;
dylancachan 0:6ce9c65992e5 4088 }
dylancachan 0:6ce9c65992e5 4089 }
dylancachan 0:6ce9c65992e5 4090 while (IsDigit(c)) { /* Precision */
dylancachan 0:6ce9c65992e5 4091 w = w * 10 + c - '0';
dylancachan 0:6ce9c65992e5 4092 c = *str++;
dylancachan 0:6ce9c65992e5 4093 }
dylancachan 0:6ce9c65992e5 4094 if (c == 'l' || c == 'L') { /* Prefix: Size is long int */
dylancachan 0:6ce9c65992e5 4095 f |= 4; c = *str++;
dylancachan 0:6ce9c65992e5 4096 }
dylancachan 0:6ce9c65992e5 4097 if (!c) break;
dylancachan 0:6ce9c65992e5 4098 d = c;
dylancachan 0:6ce9c65992e5 4099 if (IsLower(d)) d -= 0x20;
dylancachan 0:6ce9c65992e5 4100 switch (d) { /* Type is... */
dylancachan 0:6ce9c65992e5 4101 case 'S' : /* String */
dylancachan 0:6ce9c65992e5 4102 p = va_arg(arp, TCHAR*);
dylancachan 0:6ce9c65992e5 4103 for (j = 0; p[j]; j++) ;
dylancachan 0:6ce9c65992e5 4104 chc = 0;
dylancachan 0:6ce9c65992e5 4105 if (!(f & 2)) {
dylancachan 0:6ce9c65992e5 4106 while (j++ < w) chc += (cc = f_putc(' ', fil));
dylancachan 0:6ce9c65992e5 4107 }
dylancachan 0:6ce9c65992e5 4108 chc += (cc = f_puts(p, fil));
dylancachan 0:6ce9c65992e5 4109 while (j++ < w) chc += (cc = f_putc(' ', fil));
dylancachan 0:6ce9c65992e5 4110 if (cc != EOF) cc = chc;
dylancachan 0:6ce9c65992e5 4111 continue;
dylancachan 0:6ce9c65992e5 4112 case 'C' : /* Character */
dylancachan 0:6ce9c65992e5 4113 cc = f_putc((TCHAR)va_arg(arp, int), fil); continue;
dylancachan 0:6ce9c65992e5 4114 case 'B' : /* Binary */
dylancachan 0:6ce9c65992e5 4115 r = 2; break;
dylancachan 0:6ce9c65992e5 4116 case 'O' : /* Octal */
dylancachan 0:6ce9c65992e5 4117 r = 8; break;
dylancachan 0:6ce9c65992e5 4118 case 'D' : /* Signed decimal */
dylancachan 0:6ce9c65992e5 4119 case 'U' : /* Unsigned decimal */
dylancachan 0:6ce9c65992e5 4120 r = 10; break;
dylancachan 0:6ce9c65992e5 4121 case 'X' : /* Hexdecimal */
dylancachan 0:6ce9c65992e5 4122 r = 16; break;
dylancachan 0:6ce9c65992e5 4123 default: /* Unknown type (pass-through) */
dylancachan 0:6ce9c65992e5 4124 cc = f_putc(c, fil); continue;
dylancachan 0:6ce9c65992e5 4125 }
dylancachan 0:6ce9c65992e5 4126
dylancachan 0:6ce9c65992e5 4127 /* Get an argument and put it in numeral */
dylancachan 0:6ce9c65992e5 4128 v = (f & 4) ? (ULONG)va_arg(arp, long) : ((d == 'D') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int));
dylancachan 0:6ce9c65992e5 4129 if (d == 'D' && (v & 0x80000000)) {
dylancachan 0:6ce9c65992e5 4130 v = 0 - v;
dylancachan 0:6ce9c65992e5 4131 f |= 8;
dylancachan 0:6ce9c65992e5 4132 }
dylancachan 0:6ce9c65992e5 4133 i = 0;
dylancachan 0:6ce9c65992e5 4134 do {
dylancachan 0:6ce9c65992e5 4135 d = (TCHAR)(v % r); v /= r;
dylancachan 0:6ce9c65992e5 4136 if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
dylancachan 0:6ce9c65992e5 4137 s[i++] = d + '0';
dylancachan 0:6ce9c65992e5 4138 } while (v && i < sizeof s / sizeof s[0]);
dylancachan 0:6ce9c65992e5 4139 if (f & 8) s[i++] = '-';
dylancachan 0:6ce9c65992e5 4140 j = i; d = (f & 1) ? '0' : ' ';
dylancachan 0:6ce9c65992e5 4141 res = 0;
dylancachan 0:6ce9c65992e5 4142 while (!(f & 2) && j++ < w) res += (cc = f_putc(d, fil));
dylancachan 0:6ce9c65992e5 4143 do res += (cc = f_putc(s[--i], fil)); while(i);
dylancachan 0:6ce9c65992e5 4144 while (j++ < w) res += (cc = f_putc(' ', fil));
dylancachan 0:6ce9c65992e5 4145 if (cc != EOF) cc = res;
dylancachan 0:6ce9c65992e5 4146 }
dylancachan 0:6ce9c65992e5 4147
dylancachan 0:6ce9c65992e5 4148 va_end(arp);
dylancachan 0:6ce9c65992e5 4149 return (cc == EOF) ? cc : res;
dylancachan 0:6ce9c65992e5 4150 }
dylancachan 0:6ce9c65992e5 4151
dylancachan 0:6ce9c65992e5 4152 #endif /* !_FS_READONLY */
dylancachan 0:6ce9c65992e5 4153 #endif /* _USE_STRFUNC */