+++ /dev/null
-/*----------------------------------------------------------------------------/
-/ FatFs - FAT file system module R0.11a (C)ChaN, 2015 /
-/-----------------------------------------------------------------------------/
-/ FatFs module is a free software that opened under license policy of
-/ following conditions.
-/
-/ Copyright (C) 2015, ChaN, all right reserved.
-/
-/ 1. Redistributions of source code must retain the above copyright notice,
-/ this condition and the following disclaimer.
-/
-/ This software is provided by the copyright holder and contributors "AS IS"
-/ and any warranties related to this software are DISCLAIMED.
-/ The copyright owner or contributors be NOT LIABLE for any damages caused
-/ by use of this software.
-/----------------------------------------------------------------------------*/
-
-
-#include "ff.h" /* Declarations of FatFs API */
-#include "diskio.h" /* Declarations of disk I/O functions */
-
-
-/*--------------------------------------------------------------------------
-
- Module Private Definitions
-
----------------------------------------------------------------------------*/
-
-#if _FATFS != 64180 /* Revision ID */
-#error Wrong include file (ff.h).
-#endif
-
-
-/* Reentrancy related */
-#if _FS_REENTRANT
-#if _USE_LFN == 1
-#error Static LFN work area cannot be used at thread-safe configuration
-#endif
-#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
-#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
-#else
-#define ENTER_FF(fs)
-#define LEAVE_FF(fs, res) return res
-#endif
-
-#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }
-
-
-/* Definitions of sector size */
-#if (_MAX_SS < _MIN_SS) || (_MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096) || (_MIN_SS != 512 && _MIN_SS != 1024 && _MIN_SS != 2048 && _MIN_SS != 4096)
-#error Wrong sector size configuration
-#endif
-#if _MAX_SS == _MIN_SS
-#define SS(fs) ((UINT)_MAX_SS) /* Fixed sector size */
-#else
-#define SS(fs) ((fs)->ssize) /* Variable sector size */
-#endif
-
-
-/* Timestamp feature */
-#if _FS_NORTC == 1
-#if _NORTC_YEAR < 1980 || _NORTC_YEAR > 2107 || _NORTC_MON < 1 || _NORTC_MON > 12 || _NORTC_MDAY < 1 || _NORTC_MDAY > 31
-#error Invalid _FS_NORTC settings
-#endif
-#define GET_FATTIME() ((DWORD)(_NORTC_YEAR - 1980) << 25 | (DWORD)_NORTC_MON << 21 | (DWORD)_NORTC_MDAY << 16)
-#else
-#define GET_FATTIME() get_fattime()
-#endif
-
-
-/* File access control feature */
-#if _FS_LOCK
-#if _FS_READONLY
-#error _FS_LOCK must be 0 at read-only configuration
-#endif
-typedef struct {
- FATFS *fs; /* Object ID 1, volume (NULL:blank entry) */
- DWORD clu; /* Object ID 2, directory (0:root) */
- WORD idx; /* Object ID 3, directory index */
- WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */
-} FILESEM;
-#endif
-
-
-
-/* DBCS code ranges and SBCS upper conversion tables */
-
-#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
-#define _DF1S 0x81 /* DBC 1st byte range 1 start */
-#define _DF1E 0x9F /* DBC 1st byte range 1 end */
-#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
-#define _DF2E 0xFC /* DBC 1st byte range 2 end */
-#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
-#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
-#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
-#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
-
-#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
-#define _DF1S 0x81
-#define _DF1E 0xFE
-#define _DS1S 0x40
-#define _DS1E 0x7E
-#define _DS2S 0x80
-#define _DS2E 0xFE
-
-#elif _CODE_PAGE == 949 /* Korean */
-#define _DF1S 0x81
-#define _DF1E 0xFE
-#define _DS1S 0x41
-#define _DS1E 0x5A
-#define _DS2S 0x61
-#define _DS2E 0x7A
-#define _DS3S 0x81
-#define _DS3E 0xFE
-
-#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
-#define _DF1S 0x81
-#define _DF1E 0xFE
-#define _DS1S 0x40
-#define _DS1E 0x7E
-#define _DS2S 0xA1
-#define _DS2E 0xFE
-
-#elif _CODE_PAGE == 437 /* U.S. */
-#define _DF1S 0
-#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,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, \
- 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
- 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
- 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, \
- 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}
-
-#elif _CODE_PAGE == 720 /* Arabic */
-#define _DF1S 0
-#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, \
- 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, \
- 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, \
- 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}
-
-#elif _CODE_PAGE == 737 /* Greek */
-#define _DF1S 0
-#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, \
- 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, \
- 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, \
- 0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xEF,0xF5,0xF0,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
- 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
-
-#elif _CODE_PAGE == 771 /* KBL */
-#define _DF1S 0
-#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, \
- 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, \
- 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,0xDC,0xDE,0xDE, \
- 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
- 0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFE,0xFF}
-
-#elif _CODE_PAGE == 775 /* Baltic */
-#define _DF1S 0
-#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, \
- 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, \
- 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, \
- 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}
-
-#elif _CODE_PAGE == 850 /* Latin 1 */
-#define _DF1S 0
-#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x41,0x43,0x45,0x45,0x45,0x49,0x49,0x49,0x41,0x41, \
- 0x45,0x92,0x92,0x4F,0x4F,0x4F,0x55,0x55,0x59,0x4F,0x55,0x4F,0x9C,0x4F,0x9E,0x9F, \
- 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
- 0xB0,0xB1,0xB2,0xB3,0xB4,0x41,0x41,0x41,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
- 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0x41,0x41,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
- 0xD1,0xD1,0x45,0x45,0x45,0x49,0x49,0x49,0x49,0xD9,0xDA,0xDB,0xDC,0xDD,0x49,0xDF, \
- 0x4F,0xE1,0x4F,0x4F,0x4F,0x4F,0xE6,0xE8,0xE8,0x55,0x55,0x55,0x59,0x59,0xEE,0xEF, \
- 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
-
-#elif _CODE_PAGE == 852 /* Latin 2 */
-#define _DF1S 0
-#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,0xAC, \
- 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, \
- 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, \
- 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}
-
-#elif _CODE_PAGE == 855 /* Cyrillic */
-#define _DF1S 0
-#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, \
- 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, \
- 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, \
- 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}
-
-#elif _CODE_PAGE == 857 /* Turkish */
-#define _DF1S 0
-#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x49,0x8E,0x8F, \
- 0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
- 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
- 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
- 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
- 0xD0,0xD1,0xD2,0xD3,0xD4,0x49,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
- 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0xED,0xEE,0xEF, \
- 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
-
-#elif _CODE_PAGE == 860 /* Portuguese */
-#define _DF1S 0
-#define _EXCVT {0x80,0x9A,0x90,0x8F,0x8E,0x91,0x86,0x80,0x89,0x89,0x92,0x8B,0x8C,0x98,0x8E,0x8F, \
- 0x90,0x91,0x92,0x8C,0x99,0xA9,0x96,0x9D,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
- 0x86,0x8B,0x9F,0x96,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
- 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
- 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, \
- 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}
-
-#elif _CODE_PAGE == 861 /* Icelandic */
-#define _DF1S 0
-#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x8B,0x8B,0x8D,0x8E,0x8F, \
- 0x90,0x92,0x92,0x4F,0x99,0x8D,0x55,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
- 0xA4,0xA5,0xA6,0xA7,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
- 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
- 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, \
- 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}
-
-#elif _CODE_PAGE == 862 /* Hebrew */
-#define _DF1S 0
-#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, \
- 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
- 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
- 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, \
- 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}
-
-#elif _CODE_PAGE == 863 /* Canadian-French */
-#define _DF1S 0
-#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x41,0x8F, \
- 0x45,0x45,0x45,0x4F,0x45,0x49,0x55,0x55,0x98,0x4F,0x55,0x9B,0x9C,0x55,0x55,0x9F, \
- 0xA0,0xA1,0x4F,0x55,0xA4,0xA5,0xA6,0xA7,0x49,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
- 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
- 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, \
- 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}
-
-#elif _CODE_PAGE == 864 /* Arabic */
-#define _DF1S 0
-#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,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, \
- 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
- 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
- 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, \
- 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}
-
-#elif _CODE_PAGE == 865 /* Nordic */
-#define _DF1S 0
-#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, \
- 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
- 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
- 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, \
- 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}
-
-#elif _CODE_PAGE == 866 /* Russian */
-#define _DF1S 0
-#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, \
- 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, \
- 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, \
- 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}
-
-#elif _CODE_PAGE == 869 /* Greek 2 */
-#define _DF1S 0
-#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,0x86,0x9C,0x8D,0x8F,0x90, \
- 0x91,0x90,0x92,0x95,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
- 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
- 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
- 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xA4,0xA5,0xA6,0xD9,0xDA,0xDB,0xDC,0xA7,0xA8,0xDF, \
- 0xA9,0xAA,0xAC,0xAD,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xCF,0xCF,0xD0,0xEF, \
- 0xF0,0xF1,0xD1,0xD2,0xD3,0xF5,0xD4,0xF7,0xF8,0xF9,0xD5,0x96,0x95,0x98,0xFE,0xFF}
-
-#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
-#if _USE_LFN
-#error Cannot use LFN feature without valid code page.
-#endif
-#define _DF1S 0
-
-#else
-#error Unknown code page
-
-#endif
-
-
-/* Character code support macros */
-#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
-#define IsLower(c) (((c)>='a')&&((c)<='z'))
-#define IsDigit(c) (((c)>='0')&&((c)<='9'))
-
-#if _DF1S /* Code page is DBCS */
-
-#ifdef _DF2S /* Two 1st byte areas */
-#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) || ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
-#else /* One 1st byte area */
-#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
-#endif
-
-#ifdef _DS3S /* Three 2nd byte areas */
-#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) || ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
-#else /* Two 2nd byte areas */
-#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
-#endif
-
-#else /* Code page is SBCS */
-
-#define IsDBCS1(c) 0
-#define IsDBCS2(c) 0
-
-#endif /* _DF1S */
-
-
-/* Name status flags */
-#define NSFLAG 11 /* Index of name status byte in fn[] */
-#define NS_LOSS 0x01 /* Out of 8.3 format */
-#define NS_LFN 0x02 /* Force to create LFN entry */
-#define NS_LAST 0x04 /* Last segment */
-#define NS_BODY 0x08 /* Lower case flag (body) */
-#define NS_EXT 0x10 /* Lower case flag (ext) */
-#define NS_DOT 0x20 /* Dot entry */
-
-
-/* FAT sub-type boundaries (Differ from specs but correct for real DOS/Windows) */
-#define MIN_FAT16 4086U /* Minimum number of clusters of FAT16 */
-#define MIN_FAT32 65526U /* Minimum number of clusters of FAT32 */
-
-
-/* FatFs refers the members in the FAT structures as byte array instead of
-/ structure members because the structure is not binary compatible between
-/ different platforms */
-
-#define BS_jmpBoot 0 /* x86 jump instruction (3) */
-#define BS_OEMName 3 /* OEM name (8) */
-#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
-#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
-#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
-#define BPB_NumFATs 16 /* Number of FAT copies (1) */
-#define BPB_RootEntCnt 17 /* Number of root directory entries for FAT12/16 (2) */
-#define BPB_TotSec16 19 /* Volume size [sector] (2) */
-#define BPB_Media 21 /* Media descriptor (1) */
-#define BPB_FATSz16 22 /* FAT size [sector] (2) */
-#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
-#define BPB_NumHeads 26 /* Number of heads (2) */
-#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
-#define BPB_TotSec32 32 /* Volume size [sector] (4) */
-#define BS_DrvNum 36 /* Physical drive number (1) */
-#define BS_NTres 37 /* Error flag (1) */
-#define BS_BootSig 38 /* Extended boot signature (1) */
-#define BS_VolID 39 /* Volume serial number (4) */
-#define BS_VolLab 43 /* Volume label (8) */
-#define BS_FilSysType 54 /* File system type (1) */
-#define BPB_FATSz32 36 /* FAT size [sector] (4) */
-#define BPB_ExtFlags 40 /* Extended flags (2) */
-#define BPB_FSVer 42 /* File system version (2) */
-#define BPB_RootClus 44 /* Root directory first cluster (4) */
-#define BPB_FSInfo 48 /* Offset of FSINFO sector (2) */
-#define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
-#define BS_DrvNum32 64 /* Physical drive number (1) */
-#define BS_NTres32 65 /* Error flag (1) */
-#define BS_BootSig32 66 /* Extended boot signature (1) */
-#define BS_VolID32 67 /* Volume serial number (4) */
-#define BS_VolLab32 71 /* Volume label (8) */
-#define BS_FilSysType32 82 /* File system type (1) */
-#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
-#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
-#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
-#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
-#define MBR_Table 446 /* MBR: Partition table offset (2) */
-#define SZ_PTE 16 /* MBR: Size of a partition table entry */
-#define BS_55AA 510 /* Signature word (2) */
-
-#define DIR_Name 0 /* Short file name (11) */
-#define DIR_Attr 11 /* Attribute (1) */
-#define DIR_NTres 12 /* Lower case flag (1) */
-#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
-#define DIR_CrtTime 14 /* Created time (2) */
-#define DIR_CrtDate 16 /* Created date (2) */
-#define DIR_LstAccDate 18 /* Last accessed date (2) */
-#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
-#define DIR_WrtTime 22 /* Modified time (2) */
-#define DIR_WrtDate 24 /* Modified date (2) */
-#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
-#define DIR_FileSize 28 /* File size (4) */
-#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
-#define LDIR_Attr 11 /* LFN attribute (1) */
-#define LDIR_Type 12 /* LFN type (1) */
-#define LDIR_Chksum 13 /* Checksum of corresponding SFN entry */
-#define LDIR_FstClusLO 26 /* Must be zero (0) */
-#define SZ_DIRE 32 /* Size of a directory entry */
-#define LLEF 0x40 /* Last long entry flag in LDIR_Ord */
-#define DDEM 0xE5 /* Deleted directory entry mark at DIR_Name[0] */
-#define RDDEM 0x05 /* Replacement of the character collides with DDEM */
-
-
-
-
-/*--------------------------------------------------------------------------
-
- Module Private Work Area
-
----------------------------------------------------------------------------*/
-
-/* Remark: Uninitialized variables with static duration are guaranteed
-/ zero/null at start-up. If not, either the linker or start-up routine
-/ being used is not compliance with ANSI-C standard.
-*/
-
-#if _VOLUMES < 1 || _VOLUMES > 9
-#error Wrong _VOLUMES setting
-#endif
-static FATFS *FatFs[_VOLUMES]; /* Pointer to the file system objects (logical drives) */
-static WORD Fsid; /* File system mount ID */
-
-#if _FS_RPATH && _VOLUMES >= 2
-static BYTE CurrVol; /* Current drive */
-#endif
-
-#if _FS_LOCK
-static FILESEM Files[_FS_LOCK]; /* Open object lock semaphores */
-#endif
-
-#if _USE_LFN == 0 /* Non LFN feature */
-#define DEFINE_NAMEBUF BYTE sfn[12]
-#define INIT_BUF(dobj) (dobj).fn = sfn
-#define FREE_BUF()
-#else
-#if _MAX_LFN < 12 || _MAX_LFN > 255
-#error Wrong _MAX_LFN setting
-#endif
-#if _USE_LFN == 1 /* LFN feature with static working buffer */
-static WCHAR LfnBuf[_MAX_LFN + 1];
-#define DEFINE_NAMEBUF BYTE sfn[12]
-#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
-#define FREE_BUF()
-#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
-#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN + 1]
-#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
-#define FREE_BUF()
-#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
-#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR *lfn
-#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); (dobj).lfn = lfn; (dobj).fn = sfn; }
-#define FREE_BUF() ff_memfree(lfn)
-#else
-#error Wrong _USE_LFN setting
-#endif
-#endif
-
-#ifdef _EXCVT
-static const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for SBCS extended characters */
-#endif
-
-
-
-
-
-
-/*--------------------------------------------------------------------------
-
- Module Private Functions
-
----------------------------------------------------------------------------*/
-
-
-/*-----------------------------------------------------------------------*/
-/* String functions */
-/*-----------------------------------------------------------------------*/
-
-/* Copy memory to memory */
-static
-void mem_cpy (void* dst, const void* src, UINT cnt) {
- BYTE *d = (BYTE*)dst;
- const BYTE *s = (const BYTE*)src;
-
-#if _WORD_ACCESS == 1
- while (cnt >= sizeof (int)) {
- *(int*)d = *(int*)s;
- d += sizeof (int); s += sizeof (int);
- cnt -= sizeof (int);
- }
-#endif
- while (cnt--)
- *d++ = *s++;
-}
-
-/* Fill memory */
-static
-void mem_set (void* dst, int val, UINT cnt) {
- BYTE *d = (BYTE*)dst;
-
- while (cnt--)
- *d++ = (BYTE)val;
-}
-
-/* Compare memory to memory */
-static
-int mem_cmp (const void* dst, const void* src, UINT cnt) {
- const BYTE *d = (const BYTE *)dst, *s = (const BYTE *)src;
- int r = 0;
-
- while (cnt-- && (r = *d++ - *s++) == 0) ;
- return r;
-}
-
-/* Check if chr is contained in the string */
-static
-int chk_chr (const char* str, int chr) {
- while (*str && *str != chr) str++;
- return *str;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Request/Release grant to access the volume */
-/*-----------------------------------------------------------------------*/
-#if _FS_REENTRANT
-static
-int lock_fs (
- FATFS* fs /* File system object */
-)
-{
- return ff_req_grant(fs->sobj);
-}
-
-
-static
-void unlock_fs (
- FATFS* fs, /* File system object */
- FRESULT res /* Result code to be returned */
-)
-{
- if (fs &&
- res != FR_NOT_ENABLED &&
- res != FR_INVALID_DRIVE &&
- res != FR_INVALID_OBJECT &&
- res != FR_TIMEOUT) {
- ff_rel_grant(fs->sobj);
- }
-}
-#endif
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* File lock control functions */
-/*-----------------------------------------------------------------------*/
-#if _FS_LOCK
-
-static
-FRESULT chk_lock ( /* Check if the file can be accessed */
- DIR* dp, /* Directory object pointing the file to be checked */
- int acc /* Desired access type (0:Read, 1:Write, 2:Delete/Rename) */
-)
-{
- UINT i, be;
-
- /* Search file semaphore table */
- for (i = be = 0; i < _FS_LOCK; i++) {
- if (Files[i].fs) { /* Existing entry */
- if (Files[i].fs == dp->fs && /* Check if the object matched with an open object */
- Files[i].clu == dp->sclust &&
- Files[i].idx == dp->index) break;
- } else { /* Blank entry */
- be = 1;
- }
- }
- if (i == _FS_LOCK) /* The object is not opened */
- return (be || acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new object? */
-
- /* The object has been opened. Reject any open against writing file and all write mode open */
- return (acc || Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
-}
-
-
-static
-int enq_lock (void) /* Check if an entry is available for a new object */
-{
- UINT i;
-
- for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
- return (i == _FS_LOCK) ? 0 : 1;
-}
-
-
-static
-UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */
- DIR* dp, /* Directory object pointing the file to register or increment */
- int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
-)
-{
- UINT i;
-
-
- for (i = 0; i < _FS_LOCK; i++) { /* Find the object */
- if (Files[i].fs == dp->fs &&
- Files[i].clu == dp->sclust &&
- Files[i].idx == dp->index) break;
- }
-
- if (i == _FS_LOCK) { /* Not opened. Register it as new. */
- for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
- if (i == _FS_LOCK) return 0; /* No free entry to register (int err) */
- Files[i].fs = dp->fs;
- Files[i].clu = dp->sclust;
- Files[i].idx = dp->index;
- Files[i].ctr = 0;
- }
-
- if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
-
- Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
-
- return i + 1;
-}
-
-
-static
-FRESULT dec_lock ( /* Decrement object open counter */
- UINT i /* Semaphore index (1..) */
-)
-{
- WORD n;
- FRESULT res;
-
-
- if (--i < _FS_LOCK) { /* Shift index number origin from 0 */
- n = Files[i].ctr;
- if (n == 0x100) n = 0; /* If write mode open, delete the entry */
- if (n) n--; /* Decrement read mode open count */
- Files[i].ctr = n;
- if (!n) Files[i].fs = 0; /* Delete the entry if open count gets zero */
- res = FR_OK;
- } else {
- res = FR_INT_ERR; /* Invalid index nunber */
- }
- return res;
-}
-
-
-static
-void clear_lock ( /* Clear lock entries of the volume */
- FATFS *fs
-)
-{
- UINT i;
-
- for (i = 0; i < _FS_LOCK; i++) {
- if (Files[i].fs == fs) Files[i].fs = 0;
- }
-}
-#endif
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Move/Flush disk access window in the file system object */
-/*-----------------------------------------------------------------------*/
-#if !_FS_READONLY
-static
-FRESULT sync_window ( /* FR_OK:succeeded, !=0:error */
- FATFS* fs /* File system object */
-)
-{
- DWORD wsect;
- UINT nf;
- FRESULT res = FR_OK;
-
-
- if (fs->wflag) { /* Write back the sector if it is dirty */
- wsect = fs->winsect; /* Current sector number */
- if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK) {
- res = FR_DISK_ERR;
- } else {
- fs->wflag = 0;
- if (wsect - fs->fatbase < fs->fsize) { /* Is it in the FAT area? */
- for (nf = fs->n_fats; nf >= 2; nf--) { /* Reflect the change to all FAT copies */
- wsect += fs->fsize;
- disk_write(fs->drv, fs->win, wsect, 1);
- }
- }
- }
- }
- return res;
-}
-#endif
-
-
-static
-FRESULT move_window ( /* FR_OK(0):succeeded, !=0:error */
- FATFS* fs, /* File system object */
- DWORD sector /* Sector number to make appearance in the fs->win[] */
-)
-{
- FRESULT res = FR_OK;
-
-
- if (sector != fs->winsect) { /* Window offset changed? */
-#if !_FS_READONLY
- res = sync_window(fs); /* Write-back changes */
-#endif
- if (res == FR_OK) { /* Fill sector window with new data */
- if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK) {
- sector = 0xFFFFFFFF; /* Invalidate window if data is not reliable */
- res = FR_DISK_ERR;
- }
- fs->winsect = sector;
- }
- }
- return res;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Synchronize file system and strage device */
-/*-----------------------------------------------------------------------*/
-#if !_FS_READONLY
-static
-FRESULT sync_fs ( /* FR_OK:succeeded, !=0:error */
- FATFS* fs /* File system object */
-)
-{
- FRESULT res;
-
-
- res = sync_window(fs);
- if (res == FR_OK) {
- /* Update FSInfo sector if needed */
- if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) {
- /* Create FSInfo structure */
- mem_set(fs->win, 0, SS(fs));
- ST_WORD(fs->win + BS_55AA, 0xAA55);
- ST_DWORD(fs->win + FSI_LeadSig, 0x41615252);
- ST_DWORD(fs->win + FSI_StrucSig, 0x61417272);
- ST_DWORD(fs->win + FSI_Free_Count, fs->free_clust);
- ST_DWORD(fs->win + FSI_Nxt_Free, fs->last_clust);
- /* Write it into the FSInfo sector */
- fs->winsect = fs->volbase + 1;
- disk_write(fs->drv, fs->win, fs->winsect, 1);
- fs->fsi_flag = 0;
- }
- /* Make sure that no pending write process in the physical drive */
- if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
- res = FR_DISK_ERR;
- }
-
- return res;
-}
-#endif
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Get sector# from cluster# */
-/*-----------------------------------------------------------------------*/
-/* Hidden API for hacks and disk tools */
-
-DWORD clust2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */
- FATFS* fs, /* File system object */
- DWORD clst /* Cluster# to be converted */
-)
-{
- clst -= 2;
- if (clst >= fs->n_fatent - 2) return 0; /* Invalid cluster# */
- return clst * fs->csize + fs->database;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* FAT access - Read value of a FAT entry */
-/*-----------------------------------------------------------------------*/
-/* Hidden API for hacks and disk tools */
-
-DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluster status */
- FATFS* fs, /* File system object */
- DWORD clst /* FAT index number (cluster number) to get the value */
-)
-{
- UINT wc, bc;
- BYTE *p;
- DWORD val;
-
-
- if (clst < 2 || clst >= fs->n_fatent) { /* Check if in valid range */
- val = 1; /* Internal error */
-
- } else {
- val = 0xFFFFFFFF; /* Default value falls on disk error */
-
- switch (fs->fs_type) {
- case FS_FAT12 :
- bc = (UINT)clst; bc += bc / 2;
- if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
- wc = fs->win[bc++ % SS(fs)];
- if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
- wc |= fs->win[bc % SS(fs)] << 8;
- val = clst & 1 ? wc >> 4 : (wc & 0xFFF);
- break;
-
- case FS_FAT16 :
- if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break;
- p = &fs->win[clst * 2 % SS(fs)];
- val = LD_WORD(p);
- break;
-
- case FS_FAT32 :
- if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;
- p = &fs->win[clst * 4 % SS(fs)];
- val = LD_DWORD(p) & 0x0FFFFFFF;
- break;
-
- default:
- val = 1; /* Internal error */
- }
- }
-
- return val;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* FAT access - Change value of a FAT entry */
-/*-----------------------------------------------------------------------*/
-/* Hidden API for hacks and disk tools */
-
-#if !_FS_READONLY
-FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */
- FATFS* fs, /* File system object */
- DWORD clst, /* FAT index number (cluster number) to be changed */
- DWORD val /* New value to be set to the entry */
-)
-{
- UINT bc;
- BYTE *p;
- FRESULT res;
-
-
- if (clst < 2 || clst >= fs->n_fatent) { /* Check if in valid range */
- res = FR_INT_ERR;
-
- } else {
- switch (fs->fs_type) {
- case FS_FAT12 :
- bc = (UINT)clst; bc += bc / 2;
- res = move_window(fs, fs->fatbase + (bc / SS(fs)));
- if (res != FR_OK) break;
- p = &fs->win[bc++ % SS(fs)];
- *p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val;
- fs->wflag = 1;
- res = move_window(fs, fs->fatbase + (bc / SS(fs)));
- if (res != FR_OK) break;
- p = &fs->win[bc % SS(fs)];
- *p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F));
- fs->wflag = 1;
- break;
-
- case FS_FAT16 :
- res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
- if (res != FR_OK) break;
- p = &fs->win[clst * 2 % SS(fs)];
- ST_WORD(p, (WORD)val);
- fs->wflag = 1;
- break;
-
- case FS_FAT32 :
- res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
- if (res != FR_OK) break;
- p = &fs->win[clst * 4 % SS(fs)];
- val |= LD_DWORD(p) & 0xF0000000;
- ST_DWORD(p, val);
- fs->wflag = 1;
- break;
-
- default :
- res = FR_INT_ERR;
- }
- }
-
- return res;
-}
-#endif /* !_FS_READONLY */
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* FAT handling - Remove a cluster chain */
-/*-----------------------------------------------------------------------*/
-#if !_FS_READONLY
-static
-FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */
- FATFS* fs, /* File system object */
- DWORD clst /* Cluster# to remove a chain from */
-)
-{
- FRESULT res;
- DWORD nxt;
-#if _USE_TRIM
- DWORD scl = clst, ecl = clst, rt[2];
-#endif
-
- if (clst < 2 || clst >= fs->n_fatent) { /* Check if in valid range */
- res = FR_INT_ERR;
-
- } else {
- res = FR_OK;
- while (clst < fs->n_fatent) { /* Not a last link? */
- nxt = get_fat(fs, clst); /* Get cluster status */
- if (nxt == 0) break; /* Empty cluster? */
- if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
- if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
- res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
- if (res != FR_OK) break;
- if (fs->free_clust != 0xFFFFFFFF) { /* Update FSINFO */
- fs->free_clust++;
- fs->fsi_flag |= 1;
- }
-#if _USE_TRIM
- if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
- ecl = nxt;
- } else { /* End of contiguous clusters */
- rt[0] = clust2sect(fs, scl); /* Start sector */
- rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
- disk_ioctl(fs->drv, CTRL_TRIM, rt); /* Erase the block */
- scl = ecl = nxt;
- }
-#endif
- clst = nxt; /* Next cluster */
- }
- }
-
- return res;
-}
-#endif
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* FAT handling - Stretch or Create a cluster chain */
-/*-----------------------------------------------------------------------*/
-#if !_FS_READONLY
-static
-DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
- FATFS* fs, /* File system object */
- DWORD clst /* Cluster# to stretch, 0:Create a new chain */
-)
-{
- DWORD cs, ncl, scl;
- FRESULT res;
-
-
- if (clst == 0) { /* Create a new chain */
- scl = fs->last_clust; /* Get suggested start point */
- if (!scl || scl >= fs->n_fatent) scl = 1;
- }
- else { /* Stretch the current chain */
- cs = get_fat(fs, clst); /* Check the cluster status */
- if (cs < 2) return 1; /* Invalid value */
- if (cs == 0xFFFFFFFF) return cs; /* A disk error occurred */
- if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
- scl = clst;
- }
-
- ncl = scl; /* Start cluster */
- for (;;) {
- ncl++; /* Next cluster */
- if (ncl >= fs->n_fatent) { /* Check wrap around */
- ncl = 2;
- if (ncl > scl) return 0; /* No free cluster */
- }
- cs = get_fat(fs, ncl); /* Get the cluster status */
- if (cs == 0) break; /* Found a free cluster */
- if (cs == 0xFFFFFFFF || cs == 1)/* An error occurred */
- return cs;
- if (ncl == scl) return 0; /* No free cluster */
- }
-
- res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
- if (res == FR_OK && clst != 0) {
- res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
- }
- if (res == FR_OK) {
- fs->last_clust = ncl; /* Update FSINFO */
- if (fs->free_clust != 0xFFFFFFFF) {
- fs->free_clust--;
- fs->fsi_flag |= 1;
- }
- } else {
- ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
- }
-
- return ncl; /* Return new cluster number or error code */
-}
-#endif /* !_FS_READONLY */
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* FAT handling - Convert offset into cluster with link map table */
-/*-----------------------------------------------------------------------*/
-
-#if _USE_FASTSEEK
-static
-DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
- FIL* fp, /* Pointer to the file object */
- DWORD ofs /* File offset to be converted to cluster# */
-)
-{
- DWORD cl, ncl, *tbl;
-
-
- tbl = fp->cltbl + 1; /* Top of CLMT */
- cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
- for (;;) {
- ncl = *tbl++; /* Number of cluters in the fragment */
- if (!ncl) return 0; /* End of table? (error) */
- if (cl < ncl) break; /* In this fragment? */
- cl -= ncl; tbl++; /* Next fragment */
- }
- return cl + *tbl; /* Return the cluster number */
-}
-#endif /* _USE_FASTSEEK */
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Directory handling - Set directory index */
-/*-----------------------------------------------------------------------*/
-
-static
-FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */
- DIR* dp, /* Pointer to directory object */
- UINT idx /* Index of directory table */
-)
-{
- DWORD clst, sect;
- UINT ic;
-
-
- dp->index = (WORD)idx; /* Current index */
- clst = dp->sclust; /* Table start cluster (0:root) */
- if (clst == 1 || clst >= dp->fs->n_fatent) /* Check start cluster range */
- return FR_INT_ERR;
- if (!clst && dp->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
- clst = dp->fs->dirbase;
-
- if (clst == 0) { /* Static table (root-directory in FAT12/16) */
- if (idx >= dp->fs->n_rootdir) /* Is index out of range? */
- return FR_INT_ERR;
- sect = dp->fs->dirbase;
- }
- else { /* Dynamic table (root-directory in FAT32 or sub-directory) */
- ic = SS(dp->fs) / SZ_DIRE * dp->fs->csize; /* Entries per cluster */
- while (idx >= ic) { /* Follow cluster chain */
- clst = get_fat(dp->fs, clst); /* Get next cluster */
- if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
- if (clst < 2 || clst >= dp->fs->n_fatent) /* Reached to end of table or internal error */
- return FR_INT_ERR;
- idx -= ic;
- }
- sect = clust2sect(dp->fs, clst);
- }
- dp->clust = clst; /* Current cluster# */
- if (!sect) return FR_INT_ERR;
- dp->sect = sect + idx / (SS(dp->fs) / SZ_DIRE); /* Sector# of the directory entry */
- dp->dir = dp->fs->win + (idx % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Ptr to the entry in the sector */
-
- return FR_OK;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Directory handling - Move directory table index next */
-/*-----------------------------------------------------------------------*/
-
-static
-FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
- DIR* dp, /* Pointer to the directory object */
- int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
-)
-{
- DWORD clst;
- UINT i;
-#if !_FS_READONLY
- UINT c;
-#endif
-
-
- i = dp->index + 1;
- if (!(i & 0xFFFF) || !dp->sect) /* Report EOT when index has reached 65535 */
- return FR_NO_FILE;
-
- if (!(i % (SS(dp->fs) / SZ_DIRE))) { /* Sector changed? */
- dp->sect++; /* Next sector */
-
- if (!dp->clust) { /* Static table */
- if (i >= dp->fs->n_rootdir) /* Report EOT if it reached end of static table */
- return FR_NO_FILE;
- }
- else { /* Dynamic table */
- if (((i / (SS(dp->fs) / SZ_DIRE)) & (dp->fs->csize - 1)) == 0) { /* Cluster changed? */
- clst = get_fat(dp->fs, dp->clust); /* Get next cluster */
- if (clst <= 1) return FR_INT_ERR;
- if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
- if (clst >= dp->fs->n_fatent) { /* If it reached end of dynamic table, */
-#if !_FS_READONLY
- if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT */
- clst = create_chain(dp->fs, dp->clust); /* Stretch cluster chain */
- if (clst == 0) return FR_DENIED; /* No free cluster */
- if (clst == 1) return FR_INT_ERR;
- if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
- /* Clean-up stretched table */
- if (sync_window(dp->fs)) return FR_DISK_ERR;/* Flush disk access window */
- mem_set(dp->fs->win, 0, SS(dp->fs)); /* Clear window buffer */
- dp->fs->winsect = clust2sect(dp->fs, clst); /* Cluster start sector */
- for (c = 0; c < dp->fs->csize; c++) { /* Fill the new cluster with 0 */
- dp->fs->wflag = 1;
- if (sync_window(dp->fs)) return FR_DISK_ERR;
- dp->fs->winsect++;
- }
- dp->fs->winsect -= c; /* Rewind window offset */
-#else
- if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT (this is to suppress warning) */
- return FR_NO_FILE; /* Report EOT */
-#endif
- }
- dp->clust = clst; /* Initialize data for new cluster */
- dp->sect = clust2sect(dp->fs, clst);
- }
- }
- }
-
- dp->index = (WORD)i; /* Current index */
- dp->dir = dp->fs->win + (i % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Current entry in the window */
-
- return FR_OK;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Directory handling - Reserve directory entry */
-/*-----------------------------------------------------------------------*/
-
-#if !_FS_READONLY
-static
-FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */
- DIR* dp, /* Pointer to the directory object */
- UINT nent /* Number of contiguous entries to allocate (1-21) */
-)
-{
- FRESULT res;
- UINT n;
-
-
- res = dir_sdi(dp, 0);
- if (res == FR_OK) {
- n = 0;
- do {
- res = move_window(dp->fs, dp->sect);
- if (res != FR_OK) break;
- if (dp->dir[0] == DDEM || dp->dir[0] == 0) { /* Is it a free entry? */
- if (++n == nent) break; /* A block of contiguous free entries is found */
- } else {
- n = 0; /* Not a blank entry. Restart to search */
- }
- res = dir_next(dp, 1); /* Next entry with table stretch enabled */
- } while (res == FR_OK);
- }
- if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */
- return res;
-}
-#endif
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Directory handling - Load/Store start cluster number */
-/*-----------------------------------------------------------------------*/
-
-static
-DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */
- FATFS* fs, /* Pointer to the fs object */
- const BYTE* dir /* Pointer to the SFN entry */
-)
-{
- DWORD cl;
-
- cl = LD_WORD(dir + DIR_FstClusLO);
- if (fs->fs_type == FS_FAT32)
- cl |= (DWORD)LD_WORD(dir + DIR_FstClusHI) << 16;
-
- return cl;
-}
-
-
-#if !_FS_READONLY
-static
-void st_clust (
- BYTE* dir, /* Pointer to the SFN entry */
- DWORD cl /* Value to be set */
-)
-{
- ST_WORD(dir + DIR_FstClusLO, cl);
- ST_WORD(dir + DIR_FstClusHI, cl >> 16);
-}
-#endif
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
-/*-----------------------------------------------------------------------*/
-#if _USE_LFN
-static
-const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN characters in the directory entry */
-
-
-static
-int cmp_lfn ( /* 1:matched, 0:not matched */
- WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */
- BYTE* dir /* Pointer to the directory entry containing the part of LFN */
-)
-{
- UINT i, s;
- WCHAR wc, uc;
-
-
- if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
-
- i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
-
- for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
- uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
- if (wc) {
- if (i >= _MAX_LFN || ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) /* Compare it */
- return 0; /* Not matched */
- wc = uc;
- } else {
- if (uc != 0xFFFF) return 0; /* Check filler */
- }
- }
-
- if ((dir[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) /* Last segment matched but different length */
- return 0;
-
- return 1; /* The part of LFN matched */
-}
-
-
-
-static
-int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */
- WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
- BYTE* dir /* Pointer to the LFN entry */
-)
-{
- UINT i, s;
- WCHAR wc, uc;
-
-
- if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
-
- i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
-
- for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
- uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
- if (wc) {
- if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
- lfnbuf[i++] = wc = uc; /* Store it */
- } else {
- if (uc != 0xFFFF) return 0; /* Check filler */
- }
- }
-
- if (dir[LDIR_Ord] & LLEF) { /* Put terminator if it is the last LFN part */
- if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
- lfnbuf[i] = 0;
- }
-
- return 1; /* The part of LFN is valid */
-}
-
-
-#if !_FS_READONLY
-static
-void fit_lfn (
- const WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
- BYTE* dir, /* Pointer to the LFN entry to be processed */
- BYTE ord, /* LFN order (1-20) */
- BYTE sum /* Checksum of the corresponding SFN */
-)
-{
- UINT i, s;
- WCHAR wc;
-
-
- dir[LDIR_Chksum] = sum; /* Set checksum */
- dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
- dir[LDIR_Type] = 0;
- ST_WORD(dir + LDIR_FstClusLO, 0);
-
- i = (ord - 1) * 13; /* Get offset in the LFN working buffer */
- s = wc = 0;
- do {
- if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective character */
- ST_WORD(dir+LfnOfs[s], wc); /* Put it */
- if (!wc) wc = 0xFFFF; /* Padding characters following last character */
- } while (++s < 13);
- if (wc == 0xFFFF || !lfnbuf[i]) ord |= LLEF; /* Bottom LFN part is the start of LFN sequence */
- dir[LDIR_Ord] = ord; /* Set the LFN order */
-}
-
-#endif
-#endif
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Create numbered name */
-/*-----------------------------------------------------------------------*/
-#if _USE_LFN
-static
-void gen_numname (
- BYTE* dst, /* Pointer to the buffer to store numbered SFN */
- const BYTE* src, /* Pointer to SFN */
- const WCHAR* lfn, /* Pointer to LFN */
- UINT seq /* Sequence number */
-)
-{
- BYTE ns[8], c;
- UINT i, j;
- WCHAR wc;
- DWORD sr;
-
-
- mem_cpy(dst, src, 11);
-
- if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
- sr = seq;
- while (*lfn) { /* Create a CRC */
- wc = *lfn++;
- for (i = 0; i < 16; i++) {
- sr = (sr << 1) + (wc & 1);
- wc >>= 1;
- if (sr & 0x10000) sr ^= 0x11021;
- }
- }
- seq = (UINT)sr;
- }
-
- /* itoa (hexdecimal) */
- i = 7;
- do {
- c = (seq % 16) + '0';
- if (c > '9') c += 7;
- ns[i--] = c;
- seq /= 16;
- } while (seq);
- ns[i] = '~';
-
- /* Append the number */
- for (j = 0; j < i && dst[j] != ' '; j++) {
- if (IsDBCS1(dst[j])) {
- if (j == i - 1) break;
- j++;
- }
- }
- do {
- dst[j++] = (i < 8) ? ns[i++] : ' ';
- } while (j < 8);
-}
-#endif
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Calculate checksum of an SFN entry */
-/*-----------------------------------------------------------------------*/
-#if _USE_LFN
-static
-BYTE sum_sfn (
- const BYTE* dir /* Pointer to the SFN entry */
-)
-{
- BYTE sum = 0;
- UINT n = 11;
-
- do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
- return sum;
-}
-#endif
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Directory handling - Find an object in the directory */
-/*-----------------------------------------------------------------------*/
-
-static
-FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */
- DIR* dp /* Pointer to the directory object linked to the file name */
-)
-{
- FRESULT res;
- BYTE c, *dir;
-#if _USE_LFN
- BYTE a, ord, sum;
-#endif
-
- res = dir_sdi(dp, 0); /* Rewind directory object */
- if (res != FR_OK) return res;
-
-#if _USE_LFN
- ord = sum = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
-#endif
- do {
- res = move_window(dp->fs, dp->sect);
- if (res != FR_OK) break;
- dir = dp->dir; /* Ptr to the directory entry of current index */
- c = dir[DIR_Name];
- if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
-#if _USE_LFN /* LFN configuration */
- a = dir[DIR_Attr] & AM_MASK;
- if (c == DDEM || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
- ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
- } else {
- if (a == AM_LFN) { /* An LFN entry is found */
- if (dp->lfn) {
- if (c & LLEF) { /* Is it start of LFN sequence? */
- sum = dir[LDIR_Chksum];
- c &= ~LLEF; ord = c; /* LFN start order */
- dp->lfn_idx = dp->index; /* Start index of LFN */
- }
- /* Check validity of the LFN entry and compare it with given name */
- ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
- }
- } else { /* An SFN entry is found */
- if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
- if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(dir, dp->fn, 11)) break; /* SFN matched? */
- ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
- }
- }
-#else /* Non LFN configuration */
- if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dp->fn, 11)) /* Is it a valid entry? */
- break;
-#endif
- res = dir_next(dp, 0); /* Next entry */
- } while (res == FR_OK);
-
- return res;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Read an object from the directory */
-/*-----------------------------------------------------------------------*/
-#if _FS_MINIMIZE <= 1 || _USE_LABEL || _FS_RPATH >= 2
-static
-FRESULT dir_read (
- DIR* dp, /* Pointer to the directory object */
- int vol /* Filtered by 0:file/directory or 1:volume label */
-)
-{
- FRESULT res;
- BYTE a, c, *dir;
-#if _USE_LFN
- BYTE ord = 0xFF, sum = 0xFF;
-#endif
-
- res = FR_NO_FILE;
- while (dp->sect) {
- res = move_window(dp->fs, dp->sect);
- if (res != FR_OK) break;
- dir = dp->dir; /* Ptr to the directory entry of current index */
- c = dir[DIR_Name];
- if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
- a = dir[DIR_Attr] & AM_MASK;
-#if _USE_LFN /* LFN configuration */
- if (c == DDEM || (!_FS_RPATH && c == '.') || (int)((a & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */
- ord = 0xFF;
- } else {
- if (a == AM_LFN) { /* An LFN entry is found */
- if (c & LLEF) { /* Is it start of LFN sequence? */
- sum = dir[LDIR_Chksum];
- c &= ~LLEF; ord = c;
- dp->lfn_idx = dp->index;
- }
- /* Check LFN validity and capture it */
- ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
- } else { /* An SFN entry is found */
- if (ord || sum != sum_sfn(dir)) /* Is there a valid LFN? */
- dp->lfn_idx = 0xFFFF; /* It has no LFN. */
- break;
- }
- }
-#else /* Non LFN configuration */
- if (c != DDEM && (_FS_RPATH || c != '.') && a != AM_LFN && (int)((a & ~AM_ARC) == AM_VOL) == vol) /* Is it a valid entry? */
- break;
-#endif
- res = dir_next(dp, 0); /* Next entry */
- if (res != FR_OK) break;
- }
-
- if (res != FR_OK) dp->sect = 0;
-
- return res;
-}
-#endif /* _FS_MINIMIZE <= 1 || _USE_LABEL || _FS_RPATH >= 2 */
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Register an object to the directory */
-/*-----------------------------------------------------------------------*/
-#if !_FS_READONLY
-static
-FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many SFN collision, FR_DISK_ERR:disk error */
- DIR* dp /* Target directory with object name to be created */
-)
-{
- FRESULT res;
-#if _USE_LFN /* LFN configuration */
- UINT n, nent;
- BYTE sn[12], *fn, sum;
- WCHAR *lfn;
-
-
- fn = dp->fn; lfn = dp->lfn;
- mem_cpy(sn, fn, 12);
-
- if (_FS_RPATH && (sn[NSFLAG] & NS_DOT)) /* Cannot create dot entry */
- return FR_INVALID_NAME;
-
- if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
- fn[NSFLAG] = 0; dp->lfn = 0; /* Find only SFN */
- for (n = 1; n < 100; n++) {
- gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
- res = dir_find(dp); /* Check if the name collides with existing SFN */
- if (res != FR_OK) break;
- }
- if (n == 100) return FR_DENIED; /* Abort if too many collisions */
- if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
- fn[NSFLAG] = sn[NSFLAG]; dp->lfn = lfn;
- }
-
- if (sn[NSFLAG] & NS_LFN) { /* When LFN is to be created, allocate entries for an SFN + LFNs. */
- for (n = 0; lfn[n]; n++) ;
- nent = (n + 25) / 13;
- } else { /* Otherwise allocate an entry for an SFN */
- nent = 1;
- }
- res = dir_alloc(dp, nent); /* Allocate entries */
-
- if (res == FR_OK && --nent) { /* Set LFN entry if needed */
- res = dir_sdi(dp, dp->index - nent);
- if (res == FR_OK) {
- sum = sum_sfn(dp->fn); /* Checksum value of the SFN tied to the LFN */
- do { /* Store LFN entries in bottom first */
- res = move_window(dp->fs, dp->sect);
- if (res != FR_OK) break;
- fit_lfn(dp->lfn, dp->dir, (BYTE)nent, sum);
- dp->fs->wflag = 1;
- res = dir_next(dp, 0); /* Next entry */
- } while (res == FR_OK && --nent);
- }
- }
-#else /* Non LFN configuration */
- res = dir_alloc(dp, 1); /* Allocate an entry for SFN */
-#endif
-
- if (res == FR_OK) { /* Set SFN entry */
- res = move_window(dp->fs, dp->sect);
- if (res == FR_OK) {
- mem_set(dp->dir, 0, SZ_DIRE); /* Clean the entry */
- mem_cpy(dp->dir, dp->fn, 11); /* Put SFN */
-#if _USE_LFN
- dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY | NS_EXT); /* Put NT flag */
-#endif
- dp->fs->wflag = 1;
- }
- }
-
- return res;
-}
-#endif /* !_FS_READONLY */
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Remove an object from the directory */
-/*-----------------------------------------------------------------------*/
-#if !_FS_READONLY && !_FS_MINIMIZE
-static
-FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */
- DIR* dp /* Directory object pointing the entry to be removed */
-)
-{
- FRESULT res;
-#if _USE_LFN /* LFN configuration */
- UINT i;
-
- i = dp->index; /* SFN index */
- res = dir_sdi(dp, (dp->lfn_idx == 0xFFFF) ? i : dp->lfn_idx); /* Goto the SFN or top of the LFN entries */
- if (res == FR_OK) {
- do {
- res = move_window(dp->fs, dp->sect);
- if (res != FR_OK) break;
- mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
- *dp->dir = DDEM;
- dp->fs->wflag = 1;
- if (dp->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
- res = dir_next(dp, 0); /* Next entry */
- } while (res == FR_OK);
- if (res == FR_NO_FILE) res = FR_INT_ERR;
- }
-
-#else /* Non LFN configuration */
- res = dir_sdi(dp, dp->index);
- if (res == FR_OK) {
- res = move_window(dp->fs, dp->sect);
- if (res == FR_OK) {
- mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
- *dp->dir = DDEM;
- dp->fs->wflag = 1;
- }
- }
-#endif
-
- return res;
-}
-#endif /* !_FS_READONLY */
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Get file information from directory entry */
-/*-----------------------------------------------------------------------*/
-#if _FS_MINIMIZE <= 1 || _FS_RPATH >= 2
-static
-void get_fileinfo ( /* No return code */
- DIR* dp, /* Pointer to the directory object */
- FILINFO* fno /* Pointer to the file information to be filled */
-)
-{
- UINT i;
- TCHAR *p, c;
- BYTE *dir;
-#if _USE_LFN
- WCHAR w, *lfn;
-#endif
-
- p = fno->fname;
- if (dp->sect) { /* Get SFN */
- dir = dp->dir;
- i = 0;
- while (i < 11) { /* Copy name body and extension */
- c = (TCHAR)dir[i++];
- if (c == ' ') continue; /* Skip padding spaces */
- if (c == RDDEM) c = (TCHAR)DDEM; /* Restore replaced DDEM character */
- if (i == 9) *p++ = '.'; /* Insert a . if extension is exist */
-#if _USE_LFN
- if (IsUpper(c) && (dir[DIR_NTres] & (i >= 9 ? NS_EXT : NS_BODY)))
- c += 0x20; /* To lower */
-#if _LFN_UNICODE
- if (IsDBCS1(c) && i != 8 && i != 11 && IsDBCS2(dir[i]))
- c = c << 8 | dir[i++];
- c = ff_convert(c, 1); /* OEM -> Unicode */
- if (!c) c = '?';
-#endif
-#endif
- *p++ = c;
- }
- fno->fattrib = dir[DIR_Attr]; /* Attribute */
- fno->fsize = LD_DWORD(dir + DIR_FileSize); /* Size */
- fno->fdate = LD_WORD(dir + DIR_WrtDate); /* Date */
- fno->ftime = LD_WORD(dir + DIR_WrtTime); /* Time */
- }
- *p = 0; /* Terminate SFN string by a \0 */
-
-#if _USE_LFN
- if (fno->lfname) {
- i = 0; p = fno->lfname;
- if (dp->sect && fno->lfsize && dp->lfn_idx != 0xFFFF) { /* Get LFN if available */
- lfn = dp->lfn;
- while ((w = *lfn++) != 0) { /* Get an LFN character */
-#if !_LFN_UNICODE
- w = ff_convert(w, 0); /* Unicode -> OEM */
- if (!w) { i = 0; break; } /* No LFN if it could not be converted */
- if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
- p[i++] = (TCHAR)(w >> 8);
-#endif
- if (i >= fno->lfsize - 1) { i = 0; break; } /* No LFN if buffer overflow */
- p[i++] = (TCHAR)w;
- }
- }
- p[i] = 0; /* Terminate LFN string by a \0 */
- }
-#endif
-}
-#endif /* _FS_MINIMIZE <= 1 || _FS_RPATH >= 2 */
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Pattern matching */
-/*-----------------------------------------------------------------------*/
-#if _USE_FIND && _FS_MINIMIZE <= 1
-static
-WCHAR get_achar ( /* Get a character and advances ptr 1 or 2 */
- const TCHAR** ptr /* Pointer to pointer to the SBCS/DBCS/Unicode string */
-)
-{
- WCHAR chr;
-
-#if !_LFN_UNICODE
- chr = (BYTE)*(*ptr)++; /* Get a byte */
- if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */
- if (IsDBCS1(chr) && IsDBCS2(**ptr)) /* Get DBC 2nd byte if needed */
- chr = chr << 8 | (BYTE)*(*ptr)++;
-#ifdef _EXCVT
- if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */
-#endif
-#else
- chr = ff_wtoupper(*(*ptr)++); /* Get a word and to upper */
-#endif
- return chr;
-}
-
-
-static
-int pattern_matching ( /* 0:mismatched, 1:matched */
- const TCHAR* pat, /* Matching pattern */
- const TCHAR* nam, /* String to be tested */
- int skip, /* Number of pre-skip chars (number of ?s) */
- int inf /* Infinite search (* specified) */
-)
-{
- const TCHAR *pp, *np;
- WCHAR pc, nc;
- int nm, nx;
-
-
- while (skip--) { /* Pre-skip name chars */
- if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */
- }
- if (!*pat && inf) return 1; /* (short circuit) */
-
- do {
- pp = pat; np = nam; /* Top of pattern and name to match */
- for (;;) {
- if (*pp == '?' || *pp == '*') { /* Wildcard? */
- nm = nx = 0;
- do { /* Analyze the wildcard chars */
- if (*pp++ == '?') nm++; else nx = 1;
- } while (*pp == '?' || *pp == '*');
- if (pattern_matching(pp, np, nm, nx)) return 1; /* Test new branch (recurs upto number of wildcard blocks in the pattern) */
- nc = *np; break; /* Branch mismatched */
- }
- pc = get_achar(&pp); /* Get a pattern char */
- nc = get_achar(&np); /* Get a name char */
- if (pc != nc) break; /* Branch mismatched? */
- if (!pc) return 1; /* Branch matched? (matched at end of both strings) */
- }
- get_achar(&nam); /* nam++ */
- } while (inf && nc); /* Retry until end of name if infinite search is specified */
-
- return 0;
-}
-#endif /* _USE_FIND && _FS_MINIMIZE <= 1 */
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Pick a top segment and create the object name in directory form */
-/*-----------------------------------------------------------------------*/
-
-static
-FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */
- DIR* dp, /* Pointer to the directory object */
- const TCHAR** path /* Pointer to pointer to the segment in the path string */
-)
-{
-#if _USE_LFN /* LFN configuration */
- BYTE b, cf;
- WCHAR w, *lfn;
- UINT i, ni, si, di;
- const TCHAR *p;
-
- /* Create LFN in Unicode */
- for (p = *path; *p == '/' || *p == '\\'; p++) ; /* Strip duplicated separator */
- lfn = dp->lfn;
- si = di = 0;
- for (;;) {
- w = p[si++]; /* Get a character */
- if (w < ' ' || w == '/' || w == '\\') break; /* Break on end of segment */
- if (di >= _MAX_LFN) /* Reject too long name */
- return FR_INVALID_NAME;
-#if !_LFN_UNICODE
- w &= 0xFF;
- if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
- b = (BYTE)p[si++]; /* Get 2nd byte */
- w = (w << 8) + b; /* Create a DBC */
- if (!IsDBCS2(b))
- return FR_INVALID_NAME; /* Reject invalid sequence */
- }
- w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
- if (!w) return FR_INVALID_NAME; /* Reject invalid code */
-#endif
- if (w < 0x80 && chk_chr("\"*:<>\?|\x7F", w)) /* Reject illegal characters for LFN */
- return FR_INVALID_NAME;
- lfn[di++] = w; /* Store the Unicode character */
- }
- *path = &p[si]; /* Return pointer to the next segment */
- cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
-#if _FS_RPATH
- if ((di == 1 && lfn[di - 1] == '.') ||
- (di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot entry? */
- lfn[di] = 0;
- for (i = 0; i < 11; i++) /* Create dot name for SFN entry */
- dp->fn[i] = (i < di) ? '.' : ' ';
- dp->fn[i] = cf | NS_DOT; /* This is a dot entry */
- return FR_OK;
- }
-#endif
- while (di) { /* Snip off trailing spaces and dots if exist */
- w = lfn[di - 1];
- if (w != ' ' && w != '.') break;
- di--;
- }
- if (!di) return FR_INVALID_NAME; /* Reject nul string */
- lfn[di] = 0; /* LFN is created */
-
- /* Create SFN in directory form */
- mem_set(dp->fn, ' ', 11);
- for (si = 0; lfn[si] == ' ' || lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
- if (si) cf |= NS_LOSS | NS_LFN;
- while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
-
- b = i = 0; ni = 8;
- for (;;) {
- w = lfn[si++]; /* Get an LFN character */
- if (!w) break; /* Break on end of the LFN */
- if (w == ' ' || (w == '.' && si != di)) { /* Remove spaces and dots */
- cf |= NS_LOSS | NS_LFN; continue;
- }
-
- if (i >= ni || si == di) { /* Extension or end of SFN */
- if (ni == 11) { /* Long extension */
- cf |= NS_LOSS | NS_LFN; break;
- }
- if (si != di) cf |= NS_LOSS | NS_LFN; /* Out of 8.3 format */
- if (si > di) break; /* No extension */
- si = di; i = 8; ni = 11; /* Enter extension section */
- b <<= 2; continue;
- }
-
- if (w >= 0x80) { /* Non ASCII character */
-#ifdef _EXCVT
- w = ff_convert(w, 0); /* Unicode -> OEM code */
- if (w) w = ExCvt[w - 0x80]; /* Convert extended character to upper (SBCS) */
-#else
- w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
-#endif
- cf |= NS_LFN; /* Force create LFN entry */
- }
-
- if (_DF1S && w >= 0x100) { /* Is this DBC? (always false at SBCS cfg) */
- if (i >= ni - 1) {
- cf |= NS_LOSS | NS_LFN; i = ni; continue;
- }
- dp->fn[i++] = (BYTE)(w >> 8);
- } else { /* SBC */
- if (!w || chk_chr("+,;=[]", w)) { /* Replace illegal characters for SFN */
- w = '_'; cf |= NS_LOSS | NS_LFN;/* Lossy conversion */
- } else {
- if (IsUpper(w)) { /* ASCII large capital */
- b |= 2;
- } else {
- if (IsLower(w)) { /* ASCII small capital */
- b |= 1; w -= 0x20;
- }
- }
- }
- }
- dp->fn[i++] = (BYTE)w;
- }
-
- if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */
-
- if (ni == 8) b <<= 2;
- if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
- cf |= NS_LFN;
- if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */
- if ((b & 0x03) == 0x01) cf |= NS_EXT; /* NT flag (Extension has only small capital) */
- if ((b & 0x0C) == 0x04) cf |= NS_BODY; /* NT flag (Filename has only small capital) */
- }
-
- dp->fn[NSFLAG] = cf; /* SFN is created */
-
- return FR_OK;
-
-
-#else /* Non-LFN configuration */
- BYTE b, c, d, *sfn;
- UINT ni, si, i;
- const char *p;
-
- /* Create file name in directory form */
- for (p = *path; *p == '/' || *p == '\\'; p++) ; /* Skip duplicated separator */
- sfn = dp->fn;
- mem_set(sfn, ' ', 11);
- si = i = b = 0; ni = 8;
-#if _FS_RPATH
- if (p[si] == '.') { /* Is this a dot entry? */
- for (;;) {
- c = (BYTE)p[si++];
- if (c != '.' || si >= 3) break;
- sfn[i++] = c;
- }
- if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
- *path = &p[si]; /* Return pointer to the next segment */
- sfn[NSFLAG] = (c <= ' ') ? NS_LAST | NS_DOT : NS_DOT; /* Set last segment flag if end of path */
- return FR_OK;
- }
-#endif
- for (;;) {
- c = (BYTE)p[si++];
- if (c <= ' ' || c == '/' || c == '\\') break; /* Break on end of segment */
- if (c == '.' || i >= ni) {
- if (ni != 8 || c != '.') return FR_INVALID_NAME;
- i = 8; ni = 11;
- b <<= 2; continue;
- }
- if (c >= 0x80) { /* Extended character? */
- b |= 3; /* Eliminate NT flag */
-#ifdef _EXCVT
- c = ExCvt[c - 0x80]; /* To upper extended characters (SBCS cfg) */
-#else
-#if !_DF1S
- return FR_INVALID_NAME; /* Reject extended characters (ASCII cfg) */
-#endif
-#endif
- }
- if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false at SBCS cfg.) */
- d = (BYTE)p[si++]; /* Get 2nd byte */
- if (!IsDBCS2(d) || i >= ni - 1) /* Reject invalid DBC */
- return FR_INVALID_NAME;
- sfn[i++] = c;
- sfn[i++] = d;
- } else { /* SBC */
- if (chk_chr("\"*+,:;<=>\?[]|\x7F", c)) /* Reject illegal chrs for SFN */
- return FR_INVALID_NAME;
- if (IsUpper(c)) { /* ASCII large capital? */
- b |= 2;
- } else {
- if (IsLower(c)) { /* ASCII small capital? */
- b |= 1; c -= 0x20;
- }
- }
- sfn[i++] = c;
- }
- }
- *path = &p[si]; /* Return pointer to the next segment */
- c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
-
- if (!i) return FR_INVALID_NAME; /* Reject nul string */
- if (sfn[0] == DDEM) sfn[0] = RDDEM; /* When first character collides with DDEM, replace it with RDDEM */
-
- if (ni == 8) b <<= 2;
- if ((b & 0x03) == 0x01) c |= NS_EXT; /* NT flag (Name extension has only small capital) */
- if ((b & 0x0C) == 0x04) c |= NS_BODY; /* NT flag (Name body has only small capital) */
-
- sfn[NSFLAG] = c; /* Store NT flag, File name is created */
-
- return FR_OK;
-#endif
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Follow a file path */
-/*-----------------------------------------------------------------------*/
-
-static
-FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
- DIR* dp, /* Directory object to return last directory and found object */
- const TCHAR* path /* Full-path string to find a file or directory */
-)
-{
- FRESULT res;
- BYTE *dir, ns;
-
-
-#if _FS_RPATH
- if (*path == '/' || *path == '\\') { /* There is a heading separator */
- path++; dp->sclust = 0; /* Strip it and start from the root directory */
- } else { /* No heading separator */
- dp->sclust = dp->fs->cdir; /* Start from the current directory */
- }
-#else
- if (*path == '/' || *path == '\\') /* Strip heading separator if exist */
- path++;
- dp->sclust = 0; /* Always start from the root directory */
-#endif
-
- if ((UINT)*path < ' ') { /* Null path name is the origin directory itself */
- res = dir_sdi(dp, 0);
- dp->dir = 0;
- } else { /* Follow path */
- for (;;) {
- res = create_name(dp, &path); /* Get a segment name of the path */
- if (res != FR_OK) break;
- res = dir_find(dp); /* Find an object with the sagment name */
- ns = dp->fn[NSFLAG];
- if (res != FR_OK) { /* Failed to find the object */
- if (res == FR_NO_FILE) { /* Object is not found */
- if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, */
- dp->sclust = 0; dp->dir = 0; /* it is the root directory and stay there */
- if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */
- res = FR_OK; /* Ended at the root directroy. Function completed. */
- } else { /* Could not find the object */
- if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */
- }
- }
- break;
- }
- if (ns & NS_LAST) break; /* Last segment matched. Function completed. */
- dir = dp->dir; /* Follow the sub-directory */
- if (!(dir[DIR_Attr] & AM_DIR)) { /* It is not a sub-directory and cannot follow */
- res = FR_NO_PATH; break;
- }
- dp->sclust = ld_clust(dp->fs, dir);
- }
- }
-
- return res;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Get logical drive number from path name */
-/*-----------------------------------------------------------------------*/
-
-static
-int get_ldnumber ( /* Returns logical drive number (-1:invalid drive) */
- const TCHAR** path /* Pointer to pointer to the path name */
-)
-{
- const TCHAR *tp, *tt;
- UINT i;
- int vol = -1;
-#if _STR_VOLUME_ID /* Find string drive id */
- static const char* const str[] = {_VOLUME_STRS};
- const char *sp;
- char c;
- TCHAR tc;
-#endif
-
-
- if (*path) { /* If the pointer is not a null */
- for (tt = *path; (UINT)*tt >= (_USE_LFN ? ' ' : '!') && *tt != ':'; tt++) ; /* Find ':' in the path */
- if (*tt == ':') { /* If a ':' is exist in the path name */
- tp = *path;
- i = *tp++ - '0';
- if (i < 10 && tp == tt) { /* Is there a numeric drive id? */
- if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
- vol = (int)i;
- *path = ++tt;
- }
- }
-#if _STR_VOLUME_ID
- else { /* No numeric drive number, find string drive id */
- i = 0; tt++;
- do {
- sp = str[i]; tp = *path;
- do { /* Compare a string drive id with path name */
- c = *sp++; tc = *tp++;
- if (IsLower(tc)) tc -= 0x20;
- } while (c && (TCHAR)c == tc);
- } while ((c || tp != tt) && ++i < _VOLUMES); /* Repeat for each id until pattern match */
- if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
- vol = (int)i;
- *path = tt;
- }
- }
-#endif
- return vol;
- }
-#if _FS_RPATH && _VOLUMES >= 2
- vol = CurrVol; /* Current drive */
-#else
- vol = 0; /* Drive 0 */
-#endif
- }
- return vol;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Load a sector and check if it is an FAT boot sector */
-/*-----------------------------------------------------------------------*/
-
-static
-BYTE check_fs ( /* 0:Valid FAT-BS, 1:Valid BS but not FAT, 2:Not a BS, 3:Disk error */
- FATFS* fs, /* File system object */
- DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
-)
-{
- fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */
- if (move_window(fs, sect) != FR_OK) /* Load boot record */
- return 3;
-
- if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check boot record signature (always placed at offset 510 even if the sector size is >512) */
- return 2;
-
- if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
- return 0;
- if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
- return 0;
-
- return 1;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Find logical drive and check if the volume is mounted */
-/*-----------------------------------------------------------------------*/
-
-static
-FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */
- FATFS** rfs, /* Pointer to pointer to the found file system object */
- const TCHAR** path, /* Pointer to pointer to the path name (drive number) */
- BYTE wmode /* !=0: Check write protection for write access */
-)
-{
- BYTE fmt, *pt;
- int vol;
- DSTATUS stat;
- DWORD bsect, fasize, tsect, sysect, nclst, szbfat, br[4];
- WORD nrsv;
- FATFS *fs;
- UINT i;
-
-
- /* Get logical drive number from the path name */
- *rfs = 0;
- vol = get_ldnumber(path);
- if (vol < 0) return FR_INVALID_DRIVE;
-
- /* Check if the file system object is valid or not */
- fs = FatFs[vol]; /* Get pointer to the file system object */
- if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
-
- ENTER_FF(fs); /* Lock the volume */
- *rfs = fs; /* Return pointer to the file system object */
-
- if (fs->fs_type) { /* If the volume has been mounted */
- stat = disk_status(fs->drv);
- if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */
- if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
- return FR_WRITE_PROTECTED;
- return FR_OK; /* The file system object is valid */
- }
- }
-
- /* The file system object is not valid. */
- /* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
-
- fs->fs_type = 0; /* Clear the file system object */
- fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
- stat = disk_initialize(fs->drv); /* Initialize the physical drive */
- if (stat & STA_NOINIT) /* Check if the initialization succeeded */
- return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
- if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
- return FR_WRITE_PROTECTED;
-#if _MAX_SS != _MIN_SS /* Get sector size (multiple sector size cfg only) */
- if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
- || SS(fs) < _MIN_SS || SS(fs) > _MAX_SS) return FR_DISK_ERR;
-#endif
- /* Find an FAT partition on the drive. Supports only generic partitioning, FDISK and SFD. */
- bsect = 0;
- fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT boot sector as SFD */
- if (fmt == 1 || (!fmt && (LD2PT(vol)))) { /* Not an FAT boot sector or forced partition number */
- for (i = 0; i < 4; i++) { /* Get partition offset */
- pt = fs->win + MBR_Table + i * SZ_PTE;
- br[i] = pt[4] ? LD_DWORD(&pt[8]) : 0;
- }
- i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */
- if (i) i--;
- do { /* Find an FAT volume */
- bsect = br[i];
- fmt = bsect ? check_fs(fs, bsect) : 2; /* Check the partition */
- } while (!LD2PT(vol) && fmt && ++i < 4);
- }
- if (fmt == 3) return FR_DISK_ERR; /* An error occured in the disk I/O layer */
- if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
-
- /* An FAT volume is found. Following code initializes the file system object */
-
- if (LD_WORD(fs->win + BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
- return FR_NO_FILESYSTEM;
-
- fasize = LD_WORD(fs->win + BPB_FATSz16); /* Number of sectors per FAT */
- if (!fasize) fasize = LD_DWORD(fs->win + BPB_FATSz32);
- fs->fsize = fasize;
-
- fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */
- if (fs->n_fats != 1 && fs->n_fats != 2) /* (Must be 1 or 2) */
- return FR_NO_FILESYSTEM;
- fasize *= fs->n_fats; /* Number of sectors for FAT area */
-
- fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
- if (!fs->csize || (fs->csize & (fs->csize - 1))) /* (Must be power of 2) */
- return FR_NO_FILESYSTEM;
-
- fs->n_rootdir = LD_WORD(fs->win + BPB_RootEntCnt); /* Number of root directory entries */
- if (fs->n_rootdir % (SS(fs) / SZ_DIRE)) /* (Must be sector aligned) */
- return FR_NO_FILESYSTEM;
-
- tsect = LD_WORD(fs->win + BPB_TotSec16); /* Number of sectors on the volume */
- if (!tsect) tsect = LD_DWORD(fs->win + BPB_TotSec32);
-
- nrsv = LD_WORD(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */
- if (!nrsv) return FR_NO_FILESYSTEM; /* (Must not be 0) */
-
- /* Determine the FAT sub type */
- sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIRE); /* RSV + FAT + DIR */
- if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
- nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
- if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
- fmt = FS_FAT12;
- if (nclst >= MIN_FAT16) fmt = FS_FAT16;
- if (nclst >= MIN_FAT32) fmt = FS_FAT32;
-
- /* Boundaries and Limits */
- fs->n_fatent = nclst + 2; /* Number of FAT entries */
- fs->volbase = bsect; /* Volume start sector */
- fs->fatbase = bsect + nrsv; /* FAT start sector */
- fs->database = bsect + sysect; /* Data start sector */
- if (fmt == FS_FAT32) {
- if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
- fs->dirbase = LD_DWORD(fs->win + BPB_RootClus); /* Root directory start cluster */
- szbfat = fs->n_fatent * 4; /* (Needed FAT size) */
- } else {
- if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
- fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
- szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */
- fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
- }
- if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than the size needed) */
- return FR_NO_FILESYSTEM;
-
-#if !_FS_READONLY
- /* Initialize cluster allocation information */
- fs->last_clust = fs->free_clust = 0xFFFFFFFF;
-
- /* Get fsinfo if available */
- fs->fsi_flag = 0x80;
-#if (_FS_NOFSINFO & 3) != 3
- if (fmt == FS_FAT32 /* Enable FSINFO only if FAT32 and BPB_FSInfo == 1 */
- && LD_WORD(fs->win + BPB_FSInfo) == 1
- && move_window(fs, bsect + 1) == FR_OK)
- {
- fs->fsi_flag = 0;
- if (LD_WORD(fs->win + BS_55AA) == 0xAA55 /* Load FSINFO data if available */
- && LD_DWORD(fs->win + FSI_LeadSig) == 0x41615252
- && LD_DWORD(fs->win + FSI_StrucSig) == 0x61417272)
- {
-#if (_FS_NOFSINFO & 1) == 0
- fs->free_clust = LD_DWORD(fs->win + FSI_Free_Count);
-#endif
-#if (_FS_NOFSINFO & 2) == 0
- fs->last_clust = LD_DWORD(fs->win + FSI_Nxt_Free);
-#endif
- }
- }
-#endif
-#endif
- fs->fs_type = fmt; /* FAT sub-type */
- fs->id = ++Fsid; /* File system mount ID */
-#if _FS_RPATH
- fs->cdir = 0; /* Set current directory to root */
-#endif
-#if _FS_LOCK /* Clear file lock semaphores */
- clear_lock(fs);
-#endif
-
- return FR_OK;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Check if the file/directory object is valid or not */
-/*-----------------------------------------------------------------------*/
-
-static
-FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
- void* obj /* Pointer to the object FIL/DIR to check validity */
-)
-{
- FIL *fil = (FIL*)obj; /* Assuming offset of .fs and .id in the FIL/DIR structure is identical */
-
-
- if (!fil || !fil->fs || !fil->fs->fs_type || fil->fs->id != fil->id || (disk_status(fil->fs->drv) & STA_NOINIT))
- return FR_INVALID_OBJECT;
-
- ENTER_FF(fil->fs); /* Lock file system */
-
- return FR_OK;
-}
-
-
-
-
-/*--------------------------------------------------------------------------
-
- Public Functions
-
----------------------------------------------------------------------------*/
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Mount/Unmount a Logical Drive */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_mount (
- FATFS* fs, /* Pointer to the file system object (NULL:unmount)*/
- const TCHAR* path, /* Logical drive number to be mounted/unmounted */
- BYTE opt /* 0:Do not mount (delayed mount), 1:Mount immediately */
-)
-{
- FATFS *cfs;
- int vol;
- FRESULT res;
- const TCHAR *rp = path;
-
-
- vol = get_ldnumber(&rp);
- if (vol < 0) return FR_INVALID_DRIVE;
- cfs = FatFs[vol]; /* Pointer to fs object */
-
- if (cfs) {
-#if _FS_LOCK
- clear_lock(cfs);
-#endif
-#if _FS_REENTRANT /* Discard sync object of the current volume */
- if (!ff_del_syncobj(cfs->sobj)) return FR_INT_ERR;
-#endif
- cfs->fs_type = 0; /* Clear old fs object */
- }
-
- if (fs) {
- fs->fs_type = 0; /* Clear new fs object */
-#if _FS_REENTRANT /* Create sync object for the new volume */
- if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR;
-#endif
- }
- FatFs[vol] = fs; /* Register new fs object */
-
- if (!fs || opt != 1) return FR_OK; /* Do not mount now, it will be mounted later */
-
- res = find_volume(&fs, &path, 0); /* Force mounted the volume */
- LEAVE_FF(fs, res);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Open or Create a File */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_open (
- FIL* fp, /* Pointer to the blank file object */
- const TCHAR* path, /* Pointer to the file name */
- BYTE mode /* Access mode and file open mode flags */
-)
-{
- FRESULT res;
- DIR dj;
- BYTE *dir;
- DEFINE_NAMEBUF;
-#if !_FS_READONLY
- DWORD dw, cl;
-#endif
-
-
- if (!fp) return FR_INVALID_OBJECT;
- fp->fs = 0; /* Clear file object */
-
- /* Get logical drive number */
-#if !_FS_READONLY
- mode &= FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW;
- res = find_volume(&dj.fs, &path, (BYTE)(mode & ~FA_READ));
-#else
- mode &= FA_READ;
- res = find_volume(&dj.fs, &path, 0);
-#endif
- if (res == FR_OK) {
- INIT_BUF(dj);
- res = follow_path(&dj, path); /* Follow the file path */
- dir = dj.dir;
-#if !_FS_READONLY /* R/W configuration */
- if (res == FR_OK) {
- if (!dir) /* Default directory itself */
- res = FR_INVALID_NAME;
-#if _FS_LOCK
- else
- res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
-#endif
- }
- /* Create or Open a file */
- if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) {
- if (res != FR_OK) { /* No file, create new */
- if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
-#if _FS_LOCK
- res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
-#else
- res = dir_register(&dj);
-#endif
- mode |= FA_CREATE_ALWAYS; /* File is created */
- dir = dj.dir; /* New entry */
- }
- else { /* Any object is already existing */
- if (dir[DIR_Attr] & (AM_RDO | AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */
- res = FR_DENIED;
- } else {
- if (mode & FA_CREATE_NEW) /* Cannot create as new file */
- res = FR_EXIST;
- }
- }
- if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
- dw = GET_FATTIME();
- ST_DWORD(dir + DIR_CrtTime, dw);/* Set created time */
- ST_DWORD(dir + DIR_WrtTime, dw);/* Set modified time */
- dir[DIR_Attr] = 0; /* Reset attribute */
- ST_DWORD(dir + DIR_FileSize, 0);/* Reset file size */
- cl = ld_clust(dj.fs, dir); /* Get cluster chain */
- st_clust(dir, 0); /* Reset cluster */
- dj.fs->wflag = 1;
- if (cl) { /* Remove the cluster chain if exist */
- dw = dj.fs->winsect;
- res = remove_chain(dj.fs, cl);
- if (res == FR_OK) {
- dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
- res = move_window(dj.fs, dw);
- }
- }
- }
- }
- else { /* Open an existing file */
- if (res == FR_OK) { /* Following succeeded */
- if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
- res = FR_NO_FILE;
- } else {
- if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
- res = FR_DENIED;
- }
- }
- }
- if (res == FR_OK) {
- if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
- mode |= FA__WRITTEN;
- fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
- fp->dir_ptr = dir;
-#if _FS_LOCK
- fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
- if (!fp->lockid) res = FR_INT_ERR;
-#endif
- }
-
-#else /* R/O configuration */
- if (res == FR_OK) { /* Follow succeeded */
- dir = dj.dir;
- if (!dir) { /* Current directory itself */
- res = FR_INVALID_NAME;
- } else {
- if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
- res = FR_NO_FILE;
- }
- }
-#endif
- FREE_BUF();
-
- if (res == FR_OK) {
- fp->flag = mode; /* File access mode */
- fp->err = 0; /* Clear error flag */
- fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
- fp->fsize = LD_DWORD(dir + DIR_FileSize); /* File size */
- fp->fptr = 0; /* File pointer */
- fp->dsect = 0;
-#if _USE_FASTSEEK
- fp->cltbl = 0; /* Normal seek mode */
-#endif
- fp->fs = dj.fs; /* Validate file object */
- fp->id = fp->fs->id;
- }
- }
-
- LEAVE_FF(dj.fs, res);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Read File */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_read (
- FIL* fp, /* Pointer to the file object */
- void* buff, /* Pointer to data buffer */
- UINT btr, /* Number of bytes to read */
- UINT* br /* Pointer to number of bytes read */
-)
-{
- FRESULT res;
- DWORD clst, sect, remain;
- UINT rcnt, cc;
- BYTE csect, *rbuff = (BYTE*)buff;
-
-
- *br = 0; /* Clear read byte counter */
-
- res = validate(fp); /* Check validity */
- if (res != FR_OK) LEAVE_FF(fp->fs, res);
- if (fp->err) /* Check error */
- LEAVE_FF(fp->fs, (FRESULT)fp->err);
- if (!(fp->flag & FA_READ)) /* Check access mode */
- LEAVE_FF(fp->fs, FR_DENIED);
- remain = fp->fsize - fp->fptr;
- if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
-
- for ( ; btr; /* Repeat until all data read */
- rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
- if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
- csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
- if (!csect) { /* On the cluster boundary? */
- if (fp->fptr == 0) { /* On the top of the file? */
- clst = fp->sclust; /* Follow from the origin */
- } else { /* Middle or end of the file */
-#if _USE_FASTSEEK
- if (fp->cltbl)
- clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
- else
-#endif
- clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
- }
- if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
- if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
- fp->clust = clst; /* Update current cluster */
- }
- sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
- if (!sect) ABORT(fp->fs, FR_INT_ERR);
- sect += csect;
- cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
- if (cc) { /* Read maximum contiguous sectors directly */
- if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
- cc = fp->fs->csize - csect;
- if (disk_read(fp->fs->drv, rbuff, sect, cc) != RES_OK)
- ABORT(fp->fs, FR_DISK_ERR);
-#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
-#if _FS_TINY
- if (fp->fs->wflag && fp->fs->winsect - sect < cc)
- mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
-#else
- if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
- mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
-#endif
-#endif
- rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
- continue;
- }
-#if !_FS_TINY
- if (fp->dsect != sect) { /* Load data sector if not in cache */
-#if !_FS_READONLY
- if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
- if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
- ABORT(fp->fs, FR_DISK_ERR);
- fp->flag &= ~FA__DIRTY;
- }
-#endif
- if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
- ABORT(fp->fs, FR_DISK_ERR);
- }
-#endif
- fp->dsect = sect;
- }
- rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
- if (rcnt > btr) rcnt = btr;
-#if _FS_TINY
- if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
- ABORT(fp->fs, FR_DISK_ERR);
- mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
-#else
- mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
-#endif
- }
-
- LEAVE_FF(fp->fs, FR_OK);
-}
-
-
-
-
-#if !_FS_READONLY
-/*-----------------------------------------------------------------------*/
-/* Write File */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_write (
- FIL* fp, /* Pointer to the file object */
- const void *buff, /* Pointer to the data to be written */
- UINT btw, /* Number of bytes to write */
- UINT* bw /* Pointer to number of bytes written */
-)
-{
- FRESULT res;
- DWORD clst, sect;
- UINT wcnt, cc;
- const BYTE *wbuff = (const BYTE*)buff;
- BYTE csect;
-
-
- *bw = 0; /* Clear write byte counter */
-
- res = validate(fp); /* Check validity */
- if (res != FR_OK) LEAVE_FF(fp->fs, res);
- if (fp->err) /* Check error */
- LEAVE_FF(fp->fs, (FRESULT)fp->err);
- if (!(fp->flag & FA_WRITE)) /* Check access mode */
- LEAVE_FF(fp->fs, FR_DENIED);
- if (fp->fptr + btw < fp->fptr) btw = 0; /* File size cannot reach 4GB */
-
- for ( ; btw; /* Repeat until all data written */
- wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
- if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
- csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
- if (!csect) { /* On the cluster boundary? */
- if (fp->fptr == 0) { /* On the top of the file? */
- clst = fp->sclust; /* Follow from the origin */
- if (clst == 0) /* When no cluster is allocated, */
- clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
- } else { /* Middle or end of the file */
-#if _USE_FASTSEEK
- if (fp->cltbl)
- clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
- else
-#endif
- clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
- }
- if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
- if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
- if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
- fp->clust = clst; /* Update current cluster */
- if (fp->sclust == 0) fp->sclust = clst; /* Set start cluster if the first write */
- }
-#if _FS_TINY
- if (fp->fs->winsect == fp->dsect && sync_window(fp->fs)) /* Write-back sector cache */
- ABORT(fp->fs, FR_DISK_ERR);
-#else
- if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
- if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
- ABORT(fp->fs, FR_DISK_ERR);
- fp->flag &= ~FA__DIRTY;
- }
-#endif
- sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
- if (!sect) ABORT(fp->fs, FR_INT_ERR);
- sect += csect;
- cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
- if (cc) { /* Write maximum contiguous sectors directly */
- if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
- cc = fp->fs->csize - csect;
- if (disk_write(fp->fs->drv, wbuff, sect, cc) != RES_OK)
- ABORT(fp->fs, FR_DISK_ERR);
-#if _FS_MINIMIZE <= 2
-#if _FS_TINY
- if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
- mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
- fp->fs->wflag = 0;
- }
-#else
- if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
- mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
- fp->flag &= ~FA__DIRTY;
- }
-#endif
-#endif
- wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
- continue;
- }
-#if _FS_TINY
- if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
- if (sync_window(fp->fs)) ABORT(fp->fs, FR_DISK_ERR);
- fp->fs->winsect = sect;
- }
-#else
- if (fp->dsect != sect) { /* Fill sector cache with file data */
- if (fp->fptr < fp->fsize &&
- disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
- ABORT(fp->fs, FR_DISK_ERR);
- }
-#endif
- fp->dsect = sect;
- }
- wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
- if (wcnt > btw) wcnt = btw;
-#if _FS_TINY
- if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
- ABORT(fp->fs, FR_DISK_ERR);
- mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
- fp->fs->wflag = 1;
-#else
- mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
- fp->flag |= FA__DIRTY;
-#endif
- }
-
- if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
- fp->flag |= FA__WRITTEN; /* Set file change flag */
-
- LEAVE_FF(fp->fs, FR_OK);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Synchronize the File */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_sync (
- FIL* fp /* Pointer to the file object */
-)
-{
- FRESULT res;
- DWORD tm;
- BYTE *dir;
-
-
- res = validate(fp); /* Check validity of the object */
- if (res == FR_OK) {
- if (fp->flag & FA__WRITTEN) { /* Is there any change to the file? */
-#if !_FS_TINY
- if (fp->flag & FA__DIRTY) { /* Write-back cached data if needed */
- if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
- LEAVE_FF(fp->fs, FR_DISK_ERR);
- fp->flag &= ~FA__DIRTY;
- }
-#endif
- /* Update the directory entry */
- res = move_window(fp->fs, fp->dir_sect);
- if (res == FR_OK) {
- dir = fp->dir_ptr;
- dir[DIR_Attr] |= AM_ARC; /* Set archive bit */
- ST_DWORD(dir + DIR_FileSize, fp->fsize); /* Update file size */
- st_clust(dir, fp->sclust); /* Update start cluster */
- tm = GET_FATTIME(); /* Update modified time */
- ST_DWORD(dir + DIR_WrtTime, tm);
- ST_WORD(dir + DIR_LstAccDate, 0);
- fp->flag &= ~FA__WRITTEN;
- fp->fs->wflag = 1;
- res = sync_fs(fp->fs);
- }
- }
- }
-
- LEAVE_FF(fp->fs, res);
-}
-
-#endif /* !_FS_READONLY */
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Close File */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_close (
- FIL *fp /* Pointer to the file object to be closed */
-)
-{
- FRESULT res;
-
-
-#if !_FS_READONLY
- res = f_sync(fp); /* Flush cached data */
- if (res == FR_OK)
-#endif
- {
- res = validate(fp); /* Lock volume */
- if (res == FR_OK) {
-#if _FS_REENTRANT
- FATFS *fs = fp->fs;
-#endif
-#if _FS_LOCK
- res = dec_lock(fp->lockid); /* Decrement file open counter */
- if (res == FR_OK)
-#endif
- fp->fs = 0; /* Invalidate file object */
-#if _FS_REENTRANT
- unlock_fs(fs, FR_OK); /* Unlock volume */
-#endif
- }
- }
- return res;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Change Current Directory or Current Drive, Get Current Directory */
-/*-----------------------------------------------------------------------*/
-
-#if _FS_RPATH >= 1
-#if _VOLUMES >= 2
-FRESULT f_chdrive (
- const TCHAR* path /* Drive number */
-)
-{
- int vol;
-
-
- vol = get_ldnumber(&path);
- if (vol < 0) return FR_INVALID_DRIVE;
-
- CurrVol = (BYTE)vol;
-
- return FR_OK;
-}
-#endif
-
-
-FRESULT f_chdir (
- const TCHAR* path /* Pointer to the directory path */
-)
-{
- FRESULT res;
- DIR dj;
- DEFINE_NAMEBUF;
-
-
- /* Get logical drive number */
- res = find_volume(&dj.fs, &path, 0);
- if (res == FR_OK) {
- INIT_BUF(dj);
- res = follow_path(&dj, path); /* Follow the path */
- FREE_BUF();
- if (res == FR_OK) { /* Follow completed */
- if (!dj.dir) {
- dj.fs->cdir = dj.sclust; /* Start directory itself */
- } else {
- if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
- dj.fs->cdir = ld_clust(dj.fs, dj.dir);
- else
- res = FR_NO_PATH; /* Reached but a file */
- }
- }
- if (res == FR_NO_FILE) res = FR_NO_PATH;
- }
-
- LEAVE_FF(dj.fs, res);
-}
-
-
-#if _FS_RPATH >= 2
-FRESULT f_getcwd (
- TCHAR* buff, /* Pointer to the directory path */
- UINT len /* Size of path */
-)
-{
- FRESULT res;
- DIR dj;
- UINT i, n;
- DWORD ccl;
- TCHAR *tp;
- FILINFO fno;
- DEFINE_NAMEBUF;
-
-
- *buff = 0;
- /* Get logical drive number */
- res = find_volume(&dj.fs, (const TCHAR**)&buff, 0); /* Get current volume */
- if (res == FR_OK) {
- INIT_BUF(dj);
- i = len; /* Bottom of buffer (directory stack base) */
- dj.sclust = dj.fs->cdir; /* Start to follow upper directory from current directory */
- while ((ccl = dj.sclust) != 0) { /* Repeat while current directory is a sub-directory */
- res = dir_sdi(&dj, 1); /* Get parent directory */
- if (res != FR_OK) break;
- res = dir_read(&dj, 0);
- if (res != FR_OK) break;
- dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent directory */
- res = dir_sdi(&dj, 0);
- if (res != FR_OK) break;
- do { /* Find the entry links to the child directory */
- res = dir_read(&dj, 0);
- if (res != FR_OK) break;
- if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
- res = dir_next(&dj, 0);
- } while (res == FR_OK);
- if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
- if (res != FR_OK) break;
-#if _USE_LFN
- fno.lfname = buff;
- fno.lfsize = i;
-#endif
- get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */
- tp = fno.fname;
-#if _USE_LFN
- if (*buff) tp = buff;
-#endif
- for (n = 0; tp[n]; n++) ;
- if (i < n + 3) {
- res = FR_NOT_ENOUGH_CORE; break;
- }
- while (n) buff[--i] = tp[--n];
- buff[--i] = '/';
- }
- tp = buff;
- if (res == FR_OK) {
-#if _VOLUMES >= 2
- *tp++ = '0' + CurrVol; /* Put drive number */
- *tp++ = ':';
-#endif
- if (i == len) { /* Root-directory */
- *tp++ = '/';
- } else { /* Sub-directroy */
- do /* Add stacked path str */
- *tp++ = buff[i++];
- while (i < len);
- }
- }
- *tp = 0;
- FREE_BUF();
- }
-
- LEAVE_FF(dj.fs, res);
-}
-#endif /* _FS_RPATH >= 2 */
-#endif /* _FS_RPATH >= 1 */
-
-
-
-#if _FS_MINIMIZE <= 2
-/*-----------------------------------------------------------------------*/
-/* Seek File R/W Pointer */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_lseek (
- FIL* fp, /* Pointer to the file object */
- DWORD ofs /* File pointer from top of file */
-)
-{
- FRESULT res;
- DWORD clst, bcs, nsect, ifptr;
-#if _USE_FASTSEEK
- DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
-#endif
-
-
- res = validate(fp); /* Check validity of the object */
- if (res != FR_OK) LEAVE_FF(fp->fs, res);
- if (fp->err) /* Check error */
- LEAVE_FF(fp->fs, (FRESULT)fp->err);
-
-#if _USE_FASTSEEK
- if (fp->cltbl) { /* Fast seek */
- if (ofs == CREATE_LINKMAP) { /* Create CLMT */
- tbl = fp->cltbl;
- tlen = *tbl++; ulen = 2; /* Given table size and required table size */
- cl = fp->sclust; /* Top of the chain */
- if (cl) {
- do {
- /* Get a fragment */
- tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
- do {
- pcl = cl; ncl++;
- cl = get_fat(fp->fs, cl);
- if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
- if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
- } while (cl == pcl + 1);
- if (ulen <= tlen) { /* Store the length and top of the fragment */
- *tbl++ = ncl; *tbl++ = tcl;
- }
- } while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
- }
- *fp->cltbl = ulen; /* Number of items used */
- if (ulen <= tlen)
- *tbl = 0; /* Terminate table */
- else
- res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
-
- } else { /* Fast seek */
- if (ofs > fp->fsize) /* Clip offset at the file size */
- ofs = fp->fsize;
- fp->fptr = ofs; /* Set file pointer */
- if (ofs) {
- fp->clust = clmt_clust(fp, ofs - 1);
- dsc = clust2sect(fp->fs, fp->clust);
- if (!dsc) ABORT(fp->fs, FR_INT_ERR);
- dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
- if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
-#if !_FS_TINY
-#if !_FS_READONLY
- if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
- if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
- ABORT(fp->fs, FR_DISK_ERR);
- fp->flag &= ~FA__DIRTY;
- }
-#endif
- if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
- ABORT(fp->fs, FR_DISK_ERR);
-#endif
- fp->dsect = dsc;
- }
- }
- }
- } else
-#endif
-
- /* Normal Seek */
- {
- if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
-#if !_FS_READONLY
- && !(fp->flag & FA_WRITE)
-#endif
- ) ofs = fp->fsize;
-
- ifptr = fp->fptr;
- fp->fptr = nsect = 0;
- if (ofs) {
- bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
- if (ifptr > 0 &&
- (ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
- fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
- ofs -= fp->fptr;
- clst = fp->clust;
- } else { /* When seek to back cluster, */
- clst = fp->sclust; /* start from the first cluster */
-#if !_FS_READONLY
- if (clst == 0) { /* If no cluster chain, create a new chain */
- clst = create_chain(fp->fs, 0);
- if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
- if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
- fp->sclust = clst;
- }
-#endif
- fp->clust = clst;
- }
- if (clst != 0) {
- while (ofs > bcs) { /* Cluster following loop */
-#if !_FS_READONLY
- if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
- clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
- if (clst == 0) { /* When disk gets full, clip file size */
- ofs = bcs; break;
- }
- } else
-#endif
- clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
- if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
- if (clst <= 1 || clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
- fp->clust = clst;
- fp->fptr += bcs;
- ofs -= bcs;
- }
- fp->fptr += ofs;
- if (ofs % SS(fp->fs)) {
- nsect = clust2sect(fp->fs, clst); /* Current sector */
- if (!nsect) ABORT(fp->fs, FR_INT_ERR);
- nsect += ofs / SS(fp->fs);
- }
- }
- }
- if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
-#if !_FS_TINY
-#if !_FS_READONLY
- if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
- if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
- ABORT(fp->fs, FR_DISK_ERR);
- fp->flag &= ~FA__DIRTY;
- }
-#endif
- if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
- ABORT(fp->fs, FR_DISK_ERR);
-#endif
- fp->dsect = nsect;
- }
-#if !_FS_READONLY
- if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
- fp->fsize = fp->fptr;
- fp->flag |= FA__WRITTEN;
- }
-#endif
- }
-
- LEAVE_FF(fp->fs, res);
-}
-
-
-
-#if _FS_MINIMIZE <= 1
-/*-----------------------------------------------------------------------*/
-/* Create a Directory Object */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_opendir (
- DIR* dp, /* Pointer to directory object to create */
- const TCHAR* path /* Pointer to the directory path */
-)
-{
- FRESULT res;
- FATFS* fs;
- DEFINE_NAMEBUF;
-
-
- if (!dp) return FR_INVALID_OBJECT;
-
- /* Get logical drive number */
- res = find_volume(&fs, &path, 0);
- if (res == FR_OK) {
- dp->fs = fs;
- INIT_BUF(*dp);
- res = follow_path(dp, path); /* Follow the path to the directory */
- FREE_BUF();
- if (res == FR_OK) { /* Follow completed */
- if (dp->dir) { /* It is not the origin directory itself */
- if (dp->dir[DIR_Attr] & AM_DIR) /* The object is a sub directory */
- dp->sclust = ld_clust(fs, dp->dir);
- else /* The object is a file */
- res = FR_NO_PATH;
- }
- if (res == FR_OK) {
- dp->id = fs->id;
- res = dir_sdi(dp, 0); /* Rewind directory */
-#if _FS_LOCK
- if (res == FR_OK) {
- if (dp->sclust) {
- dp->lockid = inc_lock(dp, 0); /* Lock the sub directory */
- if (!dp->lockid)
- res = FR_TOO_MANY_OPEN_FILES;
- } else {
- dp->lockid = 0; /* Root directory need not to be locked */
- }
- }
-#endif
- }
- }
- if (res == FR_NO_FILE) res = FR_NO_PATH;
- }
- if (res != FR_OK) dp->fs = 0; /* Invalidate the directory object if function faild */
-
- LEAVE_FF(fs, res);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Close Directory */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_closedir (
- DIR *dp /* Pointer to the directory object to be closed */
-)
-{
- FRESULT res;
-
-
- res = validate(dp);
- if (res == FR_OK) {
-#if _FS_REENTRANT
- FATFS *fs = dp->fs;
-#endif
-#if _FS_LOCK
- if (dp->lockid) /* Decrement sub-directory open counter */
- res = dec_lock(dp->lockid);
- if (res == FR_OK)
-#endif
- dp->fs = 0; /* Invalidate directory object */
-#if _FS_REENTRANT
- unlock_fs(fs, FR_OK); /* Unlock volume */
-#endif
- }
- return res;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Read Directory Entries in Sequence */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_readdir (
- DIR* dp, /* Pointer to the open directory object */
- FILINFO* fno /* Pointer to file information to return */
-)
-{
- FRESULT res;
- DEFINE_NAMEBUF;
-
-
- res = validate(dp); /* Check validity of the object */
- if (res == FR_OK) {
- if (!fno) {
- res = dir_sdi(dp, 0); /* Rewind the directory object */
- } else {
- INIT_BUF(*dp);
- res = dir_read(dp, 0); /* Read an item */
- if (res == FR_NO_FILE) { /* Reached end of directory */
- dp->sect = 0;
- res = FR_OK;
- }
- if (res == FR_OK) { /* A valid entry is found */
- get_fileinfo(dp, fno); /* Get the object information */
- res = dir_next(dp, 0); /* Increment index for next */
- if (res == FR_NO_FILE) {
- dp->sect = 0;
- res = FR_OK;
- }
- }
- FREE_BUF();
- }
- }
-
- LEAVE_FF(dp->fs, res);
-}
-
-
-
-#if _USE_FIND
-/*-----------------------------------------------------------------------*/
-/* Find next file */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_findnext (
- DIR* dp, /* Pointer to the open directory object */
- FILINFO* fno /* Pointer to the file information structure */
-)
-{
- FRESULT res;
-
-
- for (;;) {
- res = f_readdir(dp, fno); /* Get a directory item */
- if (res != FR_OK || !fno || !fno->fname[0]) break; /* Terminate if any error or end of directory */
-#if _USE_LFN
- if (fno->lfname && pattern_matching(dp->pat, fno->lfname, 0, 0)) break; /* Test for LFN if exist */
-#endif
- if (pattern_matching(dp->pat, fno->fname, 0, 0)) break; /* Test for SFN */
- }
- return res;
-
-}
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Find first file */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_findfirst (
- DIR* dp, /* Pointer to the blank directory object */
- FILINFO* fno, /* Pointer to the file information structure */
- const TCHAR* path, /* Pointer to the directory to open */
- const TCHAR* pattern /* Pointer to the matching pattern */
-)
-{
- FRESULT res;
-
-
- dp->pat = pattern; /* Save pointer to pattern string */
- res = f_opendir(dp, path); /* Open the target directory */
- if (res == FR_OK)
- res = f_findnext(dp, fno); /* Find the first item */
- return res;
-}
-
-#endif /* _USE_FIND */
-
-
-
-#if _FS_MINIMIZE == 0
-/*-----------------------------------------------------------------------*/
-/* Get File Status */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_stat (
- const TCHAR* path, /* Pointer to the file path */
- FILINFO* fno /* Pointer to file information to return */
-)
-{
- FRESULT res;
- DIR dj;
- DEFINE_NAMEBUF;
-
-
- /* Get logical drive number */
- res = find_volume(&dj.fs, &path, 0);
- if (res == FR_OK) {
- INIT_BUF(dj);
- res = follow_path(&dj, path); /* Follow the file path */
- if (res == FR_OK) { /* Follow completed */
- if (dj.dir) { /* Found an object */
- if (fno) get_fileinfo(&dj, fno);
- } else { /* It is root directory */
- res = FR_INVALID_NAME;
- }
- }
- FREE_BUF();
- }
-
- LEAVE_FF(dj.fs, res);
-}
-
-
-
-#if !_FS_READONLY
-/*-----------------------------------------------------------------------*/
-/* Get Number of Free Clusters */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_getfree (
- const TCHAR* path, /* Path name of the logical drive number */
- DWORD* nclst, /* Pointer to a variable to return number of free clusters */
- FATFS** fatfs /* Pointer to return pointer to corresponding file system object */
-)
-{
- FRESULT res;
- FATFS *fs;
- DWORD nfree, clst, sect, stat;
- UINT i;
- BYTE fat, *p;
-
-
- /* Get logical drive number */
- res = find_volume(fatfs, &path, 0);
- fs = *fatfs;
- if (res == FR_OK) {
- /* If free_clust is valid, return it without full cluster scan */
- if (fs->free_clust <= fs->n_fatent - 2) {
- *nclst = fs->free_clust;
- } else {
- /* Get number of free clusters */
- fat = fs->fs_type;
- nfree = 0;
- if (fat == FS_FAT12) { /* Sector unalighed entries: Search FAT via regular routine. */
- clst = 2;
- do {
- stat = get_fat(fs, clst);
- if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
- if (stat == 1) { res = FR_INT_ERR; break; }
- if (stat == 0) nfree++;
- } while (++clst < fs->n_fatent);
- } else { /* Sector alighed entries: Accelerate the FAT search. */
- clst = fs->n_fatent; sect = fs->fatbase;
- i = 0; p = 0;
- do {
- if (!i) {
- res = move_window(fs, sect++);
- if (res != FR_OK) break;
- p = fs->win;
- i = SS(fs);
- }
- if (fat == FS_FAT16) {
- if (LD_WORD(p) == 0) nfree++;
- p += 2; i -= 2;
- } else {
- if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) nfree++;
- p += 4; i -= 4;
- }
- } while (--clst);
- }
- fs->free_clust = nfree; /* free_clust is valid */
- fs->fsi_flag |= 1; /* FSInfo is to be updated */
- *nclst = nfree; /* Return the free clusters */
- }
- }
- LEAVE_FF(fs, res);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Truncate File */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_truncate (
- FIL* fp /* Pointer to the file object */
-)
-{
- FRESULT res;
- DWORD ncl;
-
-
- res = validate(fp); /* Check validity of the object */
- if (res == FR_OK) {
- if (fp->err) { /* Check error */
- res = (FRESULT)fp->err;
- } else {
- if (!(fp->flag & FA_WRITE)) /* Check access mode */
- res = FR_DENIED;
- }
- }
- if (res == FR_OK) {
- if (fp->fsize > fp->fptr) {
- fp->fsize = fp->fptr; /* Set file size to current R/W point */
- fp->flag |= FA__WRITTEN;
- if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
- res = remove_chain(fp->fs, fp->sclust);
- fp->sclust = 0;
- } else { /* When truncate a part of the file, remove remaining clusters */
- ncl = get_fat(fp->fs, fp->clust);
- res = FR_OK;
- if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
- if (ncl == 1) res = FR_INT_ERR;
- if (res == FR_OK && ncl < fp->fs->n_fatent) {
- res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
- if (res == FR_OK) res = remove_chain(fp->fs, ncl);
- }
- }
-#if !_FS_TINY
- if (res == FR_OK && (fp->flag & FA__DIRTY)) {
- if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
- res = FR_DISK_ERR;
- else
- fp->flag &= ~FA__DIRTY;
- }
-#endif
- }
- if (res != FR_OK) fp->err = (FRESULT)res;
- }
-
- LEAVE_FF(fp->fs, res);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Delete a File or Directory */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_unlink (
- const TCHAR* path /* Pointer to the file or directory path */
-)
-{
- FRESULT res;
- DIR dj, sdj;
- BYTE *dir;
- DWORD dclst = 0;
- DEFINE_NAMEBUF;
-
-
- /* Get logical drive number */
- res = find_volume(&dj.fs, &path, 1);
- if (res == FR_OK) {
- INIT_BUF(dj);
- res = follow_path(&dj, path); /* Follow the file path */
- if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
- res = FR_INVALID_NAME; /* Cannot remove dot entry */
-#if _FS_LOCK
- if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open object */
-#endif
- if (res == FR_OK) { /* The object is accessible */
- dir = dj.dir;
- if (!dir) {
- res = FR_INVALID_NAME; /* Cannot remove the origin directory */
- } else {
- if (dir[DIR_Attr] & AM_RDO)
- res = FR_DENIED; /* Cannot remove R/O object */
- }
- if (res == FR_OK) {
- dclst = ld_clust(dj.fs, dir);
- if (dclst && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-directory ? */
-#if _FS_RPATH
- if (dclst == dj.fs->cdir) { /* Is it the current directory? */
- res = FR_DENIED;
- } else
-#endif
- {
- mem_cpy(&sdj, &dj, sizeof (DIR)); /* Open the sub-directory */
- sdj.sclust = dclst;
- res = dir_sdi(&sdj, 2);
- if (res == FR_OK) {
- res = dir_read(&sdj, 0); /* Read an item (excluding dot entries) */
- if (res == FR_OK) res = FR_DENIED; /* Not empty? (cannot remove) */
- if (res == FR_NO_FILE) res = FR_OK; /* Empty? (can remove) */
- }
- }
- }
- }
- if (res == FR_OK) {
- res = dir_remove(&dj); /* Remove the directory entry */
- if (res == FR_OK && dclst) /* Remove the cluster chain if exist */
- res = remove_chain(dj.fs, dclst);
- if (res == FR_OK) res = sync_fs(dj.fs);
- }
- }
- FREE_BUF();
- }
-
- LEAVE_FF(dj.fs, res);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Create a Directory */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_mkdir (
- const TCHAR* path /* Pointer to the directory path */
-)
-{
- FRESULT res;
- DIR dj;
- BYTE *dir, n;
- DWORD dsc, dcl, pcl, tm = GET_FATTIME();
- DEFINE_NAMEBUF;
-
-
- /* Get logical drive number */
- res = find_volume(&dj.fs, &path, 1);
- if (res == FR_OK) {
- INIT_BUF(dj);
- res = follow_path(&dj, path); /* Follow the file path */
- if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
- if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NSFLAG] & NS_DOT))
- res = FR_INVALID_NAME;
- if (res == FR_NO_FILE) { /* Can create a new directory */
- dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
- res = FR_OK;
- if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
- if (dcl == 1) res = FR_INT_ERR;
- if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
- if (res == FR_OK) /* Flush FAT */
- res = sync_window(dj.fs);
- if (res == FR_OK) { /* Initialize the new directory table */
- dsc = clust2sect(dj.fs, dcl);
- dir = dj.fs->win;
- mem_set(dir, 0, SS(dj.fs));
- mem_set(dir + DIR_Name, ' ', 11); /* Create "." entry */
- dir[DIR_Name] = '.';
- dir[DIR_Attr] = AM_DIR;
- ST_DWORD(dir + DIR_CrtTime, tm);
- ST_DWORD(dir + DIR_WrtTime, tm);
- st_clust(dir, dcl);
- mem_cpy(dir + SZ_DIRE, dir, SZ_DIRE); /* Create ".." entry */
- dir[SZ_DIRE + 1] = '.'; pcl = dj.sclust;
- if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
- pcl = 0;
- st_clust(dir + SZ_DIRE, pcl);
- for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
- dj.fs->winsect = dsc++;
- dj.fs->wflag = 1;
- res = sync_window(dj.fs);
- if (res != FR_OK) break;
- mem_set(dir, 0, SS(dj.fs));
- }
- }
- if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
- if (res != FR_OK) {
- remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
- } else {
- dir = dj.dir;
- dir[DIR_Attr] = AM_DIR; /* Attribute */
- ST_DWORD(dir + DIR_CrtTime, tm); /* Created time */
- ST_DWORD(dir + DIR_WrtTime, tm); /* Modified time */
- st_clust(dir, dcl); /* Table start cluster */
- dj.fs->wflag = 1;
- res = sync_fs(dj.fs);
- }
- }
- FREE_BUF();
- }
-
- LEAVE_FF(dj.fs, res);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Change Attribute */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_chmod (
- const TCHAR* path, /* Pointer to the file path */
- BYTE attr, /* Attribute bits */
- BYTE mask /* Attribute mask to change */
-)
-{
- FRESULT res;
- DIR dj;
- BYTE *dir;
- DEFINE_NAMEBUF;
-
-
- res = find_volume(&dj.fs, &path, 1); /* Get logical drive number */
- if (res == FR_OK) {
- INIT_BUF(dj);
- res = follow_path(&dj, path); /* Follow the file path */
- FREE_BUF();
- if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
- res = FR_INVALID_NAME;
- if (res == FR_OK) {
- dir = dj.dir;
- if (!dir) { /* Is it a root directory? */
- res = FR_INVALID_NAME;
- } else { /* File or sub directory */
- mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */
- dir[DIR_Attr] = (attr & mask) | (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
- dj.fs->wflag = 1;
- res = sync_fs(dj.fs);
- }
- }
- }
-
- LEAVE_FF(dj.fs, res);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Rename File/Directory */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_rename (
- const TCHAR* path_old, /* Pointer to the object to be renamed */
- const TCHAR* path_new /* Pointer to the new name */
-)
-{
- FRESULT res;
- DIR djo, djn;
- BYTE buf[21], *dir;
- DWORD dw;
- DEFINE_NAMEBUF;
-
-
- /* Get logical drive number of the source object */
- res = find_volume(&djo.fs, &path_old, 1);
- if (res == FR_OK) {
- djn.fs = djo.fs;
- INIT_BUF(djo);
- res = follow_path(&djo, path_old); /* Check old object */
- if (_FS_RPATH && res == FR_OK && (djo.fn[NSFLAG] & NS_DOT))
- res = FR_INVALID_NAME;
-#if _FS_LOCK
- if (res == FR_OK) res = chk_lock(&djo, 2);
-#endif
- if (res == FR_OK) { /* Old object is found */
- if (!djo.dir) { /* Is root dir? */
- res = FR_NO_FILE;
- } else {
- mem_cpy(buf, djo.dir + DIR_Attr, 21); /* Save information about object except name */
- mem_cpy(&djn, &djo, sizeof (DIR)); /* Duplicate the directory object */
- if (get_ldnumber(&path_new) >= 0) /* Snip drive number off and ignore it */
- res = follow_path(&djn, path_new); /* and make sure if new object name is not conflicting */
- else
- res = FR_INVALID_DRIVE;
- if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
- if (res == FR_NO_FILE) { /* It is a valid path and no name collision */
- res = dir_register(&djn); /* Register the new entry */
- if (res == FR_OK) {
-/* Start of critical section where any interruption can cause a cross-link */
- dir = djn.dir; /* Copy information about object except name */
- mem_cpy(dir + 13, buf + 2, 19);
- dir[DIR_Attr] = buf[0] | AM_ARC;
- djo.fs->wflag = 1;
- if ((dir[DIR_Attr] & AM_DIR) && djo.sclust != djn.sclust) { /* Update .. entry in the sub-directory if needed */
- dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
- if (!dw) {
- res = FR_INT_ERR;
- } else {
- res = move_window(djo.fs, dw);
- dir = djo.fs->win + SZ_DIRE * 1; /* Ptr to .. entry */
- if (res == FR_OK && dir[1] == '.') {
- st_clust(dir, djn.sclust);
- djo.fs->wflag = 1;
- }
- }
- }
- if (res == FR_OK) {
- res = dir_remove(&djo); /* Remove old entry */
- if (res == FR_OK)
- res = sync_fs(djo.fs);
- }
-/* End of critical section */
- }
- }
- }
- }
- FREE_BUF();
- }
-
- LEAVE_FF(djo.fs, res);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Change Timestamp */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_utime (
- const TCHAR* path, /* Pointer to the file/directory name */
- const FILINFO* fno /* Pointer to the time stamp to be set */
-)
-{
- FRESULT res;
- DIR dj;
- BYTE *dir;
- DEFINE_NAMEBUF;
-
-
- /* Get logical drive number */
- res = find_volume(&dj.fs, &path, 1);
- if (res == FR_OK) {
- INIT_BUF(dj);
- res = follow_path(&dj, path); /* Follow the file path */
- FREE_BUF();
- if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
- res = FR_INVALID_NAME;
- if (res == FR_OK) {
- dir = dj.dir;
- if (!dir) { /* Root directory */
- res = FR_INVALID_NAME;
- } else { /* File or sub-directory */
- ST_WORD(dir + DIR_WrtTime, fno->ftime);
- ST_WORD(dir + DIR_WrtDate, fno->fdate);
- dj.fs->wflag = 1;
- res = sync_fs(dj.fs);
- }
- }
- }
-
- LEAVE_FF(dj.fs, res);
-}
-
-#endif /* !_FS_READONLY */
-#endif /* _FS_MINIMIZE == 0 */
-#endif /* _FS_MINIMIZE <= 1 */
-#endif /* _FS_MINIMIZE <= 2 */
-
-
-
-
-#if _USE_LABEL
-/*-----------------------------------------------------------------------*/
-/* Get volume label */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_getlabel (
- const TCHAR* path, /* Path name of the logical drive number */
- TCHAR* label, /* Pointer to a buffer to return the volume label */
- DWORD* vsn /* Pointer to a variable to return the volume serial number */
-)
-{
- FRESULT res;
- DIR dj;
- UINT i, j;
-#if _USE_LFN && _LFN_UNICODE
- WCHAR w;
-#endif
-
-
- /* Get logical drive number */
- res = find_volume(&dj.fs, &path, 0);
-
- /* Get volume label */
- if (res == FR_OK && label) {
- dj.sclust = 0; /* Open root directory */
- res = dir_sdi(&dj, 0);
- if (res == FR_OK) {
- res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
- if (res == FR_OK) { /* A volume label is exist */
-#if _USE_LFN && _LFN_UNICODE
- i = j = 0;
- do {
- w = (i < 11) ? dj.dir[i++] : ' ';
- if (IsDBCS1(w) && i < 11 && IsDBCS2(dj.dir[i]))
- w = w << 8 | dj.dir[i++];
- label[j++] = ff_convert(w, 1); /* OEM -> Unicode */
- } while (j < 11);
-#else
- mem_cpy(label, dj.dir, 11);
-#endif
- j = 11;
- do {
- label[j] = 0;
- if (!j) break;
- } while (label[--j] == ' ');
- }
- if (res == FR_NO_FILE) { /* No label, return nul string */
- label[0] = 0;
- res = FR_OK;
- }
- }
- }
-
- /* Get volume serial number */
- if (res == FR_OK && vsn) {
- res = move_window(dj.fs, dj.fs->volbase);
- if (res == FR_OK) {
- i = dj.fs->fs_type == FS_FAT32 ? BS_VolID32 : BS_VolID;
- *vsn = LD_DWORD(&dj.fs->win[i]);
- }
- }
-
- LEAVE_FF(dj.fs, res);
-}
-
-
-
-#if !_FS_READONLY
-/*-----------------------------------------------------------------------*/
-/* Set volume label */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_setlabel (
- const TCHAR* label /* Pointer to the volume label to set */
-)
-{
- FRESULT res;
- DIR dj;
- BYTE vn[11];
- UINT i, j, sl;
- WCHAR w;
- DWORD tm;
-
-
- /* Get logical drive number */
- res = find_volume(&dj.fs, &label, 1);
- if (res) LEAVE_FF(dj.fs, res);
-
- /* Create a volume label in directory form */
- vn[0] = 0;
- for (sl = 0; label[sl]; sl++) ; /* Get name length */
- for ( ; sl && label[sl - 1] == ' '; sl--) ; /* Remove trailing spaces */
- if (sl) { /* Create volume label in directory form */
- i = j = 0;
- do {
-#if _USE_LFN && _LFN_UNICODE
- w = ff_convert(ff_wtoupper(label[i++]), 0);
-#else
- w = (BYTE)label[i++];
- if (IsDBCS1(w))
- w = (j < 10 && i < sl && IsDBCS2(label[i])) ? w << 8 | (BYTE)label[i++] : 0;
-#if _USE_LFN
- w = ff_convert(ff_wtoupper(ff_convert(w, 1)), 0);
-#else
- if (IsLower(w)) w -= 0x20; /* To upper ASCII characters */
-#ifdef _EXCVT
- if (w >= 0x80) w = ExCvt[w - 0x80]; /* To upper extended characters (SBCS cfg) */
-#else
- if (!_DF1S && w >= 0x80) w = 0; /* Reject extended characters (ASCII cfg) */
-#endif
-#endif
-#endif
- if (!w || chk_chr("\"*+,.:;<=>\?[]|\x7F", w) || j >= (UINT)((w >= 0x100) ? 10 : 11)) /* Reject invalid characters for volume label */
- LEAVE_FF(dj.fs, FR_INVALID_NAME);
- if (w >= 0x100) vn[j++] = (BYTE)(w >> 8);
- vn[j++] = (BYTE)w;
- } while (i < sl);
- while (j < 11) vn[j++] = ' '; /* Fill remaining name field */
- if (vn[0] == DDEM) LEAVE_FF(dj.fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */
- }
-
- /* Set volume label */
- dj.sclust = 0; /* Open root directory */
- res = dir_sdi(&dj, 0);
- if (res == FR_OK) {
- res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
- if (res == FR_OK) { /* A volume label is found */
- if (vn[0]) {
- mem_cpy(dj.dir, vn, 11); /* Change the volume label name */
- tm = GET_FATTIME();
- ST_DWORD(dj.dir + DIR_CrtTime, tm);
- ST_DWORD(dj.dir + DIR_WrtTime, tm);
- } else {
- dj.dir[0] = DDEM; /* Remove the volume label */
- }
- dj.fs->wflag = 1;
- res = sync_fs(dj.fs);
- } else { /* No volume label is found or error */
- if (res == FR_NO_FILE) {
- res = FR_OK;
- if (vn[0]) { /* Create volume label as new */
- res = dir_alloc(&dj, 1); /* Allocate an entry for volume label */
- if (res == FR_OK) {
- mem_set(dj.dir, 0, SZ_DIRE); /* Set volume label */
- mem_cpy(dj.dir, vn, 11);
- dj.dir[DIR_Attr] = AM_VOL;
- tm = GET_FATTIME();
- ST_DWORD(dj.dir + DIR_CrtTime, tm);
- ST_DWORD(dj.dir + DIR_WrtTime, tm);
- dj.fs->wflag = 1;
- res = sync_fs(dj.fs);
- }
- }
- }
- }
- }
-
- LEAVE_FF(dj.fs, res);
-}
-
-#endif /* !_FS_READONLY */
-#endif /* _USE_LABEL */
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Forward data to the stream directly (available on only tiny cfg) */
-/*-----------------------------------------------------------------------*/
-#if _USE_FORWARD && _FS_TINY
-
-FRESULT f_forward (
- FIL* fp, /* Pointer to the file object */
- UINT (*func)(const BYTE*,UINT), /* Pointer to the streaming function */
- UINT btf, /* Number of bytes to forward */
- UINT* bf /* Pointer to number of bytes forwarded */
-)
-{
- FRESULT res;
- DWORD remain, clst, sect;
- UINT rcnt;
- BYTE csect;
-
-
- *bf = 0; /* Clear transfer byte counter */
-
- res = validate(fp); /* Check validity of the object */
- if (res != FR_OK) LEAVE_FF(fp->fs, res);
- if (fp->err) /* Check error */
- LEAVE_FF(fp->fs, (FRESULT)fp->err);
- if (!(fp->flag & FA_READ)) /* Check access mode */
- LEAVE_FF(fp->fs, FR_DENIED);
-
- remain = fp->fsize - fp->fptr;
- if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */
-
- for ( ; btf && (*func)(0, 0); /* Repeat until all data transferred or stream becomes busy */
- fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {
- csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
- if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
- if (!csect) { /* On the cluster boundary? */
- clst = (fp->fptr == 0) ? /* On the top of the file? */
- fp->sclust : get_fat(fp->fs, fp->clust);
- if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
- if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
- fp->clust = clst; /* Update current cluster */
- }
- }
- sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
- if (!sect) ABORT(fp->fs, FR_INT_ERR);
- sect += csect;
- if (move_window(fp->fs, sect) != FR_OK) /* Move sector window */
- ABORT(fp->fs, FR_DISK_ERR);
- fp->dsect = sect;
- rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
- if (rcnt > btf) rcnt = btf;
- rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
- if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
- }
-
- LEAVE_FF(fp->fs, FR_OK);
-}
-#endif /* _USE_FORWARD */
-
-
-
-#if _USE_MKFS && !_FS_READONLY
-/*-----------------------------------------------------------------------*/
-/* Create file system on the logical drive */
-/*-----------------------------------------------------------------------*/
-#define N_ROOTDIR12 224 /* Number of root directory entries for FAT12 */
-#define N_ROOTDIR16 512 /* Number of root directory entries for FAT16 */
-#define N_FATS 2 /* Number of FATs (1 or 2) */
-
-
-FRESULT f_mkfs (
- const TCHAR* path, /* Logical drive number */
- BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
- UINT au /* Size of allocation unit in unit of byte or sector */
-)
-{
- static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
- static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
- int vol;
- BYTE fmt, md, sys, *tbl, pdrv, part;
- DWORD n_clst, vs, n, wsect;
- UINT i;
- DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
- DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
- FATFS *fs;
- DSTATUS stat;
-#if _USE_TRIM
- DWORD eb[2];
-#endif
-
-
- /* Check mounted drive and clear work area */
- if (sfd > 1) return FR_INVALID_PARAMETER;
- vol = get_ldnumber(&path);
- if (vol < 0) return FR_INVALID_DRIVE;
- fs = FatFs[vol];
- if (!fs) return FR_NOT_ENABLED;
- fs->fs_type = 0;
- pdrv = LD2PD(vol); /* Physical drive */
- part = LD2PT(vol); /* Partition (0:auto detect, 1-4:get from partition table)*/
-
- /* Get disk statics */
- stat = disk_initialize(pdrv);
- if (stat & STA_NOINIT) return FR_NOT_READY;
- if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
-#if _MAX_SS != _MIN_SS /* Get disk sector size */
- if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK || SS(fs) > _MAX_SS || SS(fs) < _MIN_SS)
- return FR_DISK_ERR;
-#endif
- if (_MULTI_PARTITION && part) {
- /* Get partition information from partition table in the MBR */
- if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
- if (LD_WORD(fs->win + BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
- tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
- if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
- b_vol = LD_DWORD(tbl + 8); /* Volume start sector */
- n_vol = LD_DWORD(tbl + 12); /* Volume size */
- } else {
- /* Create a partition in this function */
- if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK || n_vol < 128)
- return FR_DISK_ERR;
- b_vol = (sfd) ? 0 : 63; /* Volume start sector */
- n_vol -= b_vol; /* Volume size */
- }
-
- if (au & (au - 1)) au = 0;
- if (!au) { /* AU auto selection */
- vs = n_vol / (2000 / (SS(fs) / 512));
- for (i = 0; vs < vst[i]; i++) ;
- au = cst[i];
- }
- if (au >= _MIN_SS) au /= SS(fs); /* Number of sectors per cluster */
- if (!au) au = 1;
- if (au > 128) au = 128;
-
- /* Pre-compute number of clusters and FAT sub-type */
- n_clst = n_vol / au;
- fmt = FS_FAT12;
- if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
- if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
-
- /* Determine offset and size of FAT structure */
- if (fmt == FS_FAT32) {
- n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
- n_rsv = 32;
- n_dir = 0;
- } else {
- n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
- n_fat = (n_fat + SS(fs) - 1) / SS(fs);
- n_rsv = 1;
- if (fmt == FS_FAT12)
- n_dir = (DWORD)N_ROOTDIR12 * SZ_DIRE / SS(fs);
- else
- n_dir = (DWORD)N_ROOTDIR16 * SZ_DIRE / SS(fs);
- }
- b_fat = b_vol + n_rsv; /* FAT area start sector */
- b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
- b_data = b_dir + n_dir; /* Data area start sector */
- if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
-
- /* Align data start sector to erase block boundary (for flash memory media) */
- if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK || !n || n > 32768) n = 1;
- n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
- n = (n - b_data) / N_FATS;
- if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
- n_rsv += n;
- b_fat += n;
- } else if (fmt == FS_FAT16) { /* FAT16: Expand FAT size */
- n_fat += n;
- } // else /* if (fmt == FS_FAT12) */ {} /* FAT12: Do nothing */
-
- /* Determine number of clusters and final check of validity of the FAT sub-type */
- n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
- if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
- || (fmt == FS_FAT32 && n_clst < MIN_FAT32))
- return FR_MKFS_ABORTED;
-
- /* Determine system ID in the partition table */
- if (fmt == FS_FAT32) {
- sys = 0x0C; /* FAT32X */
- } else {
- if (fmt == FS_FAT12 && n_vol < 0x10000) {
- sys = 0x01; /* FAT12(<65536) */
- } else {
- sys = (n_vol < 0x10000) ? 0x04 : 0x06; /* FAT16(<65536) : FAT12/16(>=65536) */
- }
- }
-
- if (_MULTI_PARTITION && part) {
- /* Update system ID in the partition table */
- tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
- tbl[4] = sys;
- if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to teh MBR */
- return FR_DISK_ERR;
- md = 0xF8;
- } else {
- if (sfd) { /* No partition table (SFD) */
- md = 0xF0;
- } else { /* Create partition table (FDISK) */
- mem_set(fs->win, 0, SS(fs));
- tbl = fs->win + MBR_Table; /* Create partition table for single partition in the drive */
- tbl[1] = 1; /* Partition start head */
- tbl[2] = 1; /* Partition start sector */
- tbl[3] = 0; /* Partition start cylinder */
- tbl[4] = sys; /* System type */
- tbl[5] = 254; /* Partition end head */
- n = (b_vol + n_vol) / 63 / 255;
- tbl[6] = (BYTE)(n >> 2 | 63); /* Partition end sector */
- tbl[7] = (BYTE)n; /* End cylinder */
- ST_DWORD(tbl + 8, 63); /* Partition start in LBA */
- ST_DWORD(tbl + 12, n_vol); /* Partition size in LBA */
- ST_WORD(fs->win + BS_55AA, 0xAA55); /* MBR signature */
- if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR */
- return FR_DISK_ERR;
- md = 0xF8;
- }
- }
-
- /* Create BPB in the VBR */
- tbl = fs->win; /* Clear sector */
- mem_set(tbl, 0, SS(fs));
- mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
- i = SS(fs); /* Sector size */
- ST_WORD(tbl + BPB_BytsPerSec, i);
- tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
- ST_WORD(tbl + BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
- tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
- i = (fmt == FS_FAT32) ? 0 : (fmt == FS_FAT12 ? N_ROOTDIR12 : N_ROOTDIR16); /* Number of root directory entries */
- ST_WORD(tbl + BPB_RootEntCnt, i);
- if (n_vol < 0x10000) { /* Number of total sectors */
- ST_WORD(tbl + BPB_TotSec16, n_vol);
- } else {
- ST_DWORD(tbl + BPB_TotSec32, n_vol);
- }
- tbl[BPB_Media] = md; /* Media descriptor */
- ST_DWORD(tbl + BPB_HiddSec, b_vol); /* Hidden sectors */
- n = GET_FATTIME(); /* Use current time as VSN */
- if (fmt == FS_FAT32) {
- ST_WORD(tbl + BPB_SecPerTrk, 63); /* Number of sectors per track */
- ST_WORD(tbl + BPB_NumHeads, 255); /* Number of heads */
- ST_DWORD(tbl + BS_VolID32, n); /* VSN */
- ST_DWORD(tbl + BPB_FATSz32, n_fat); /* Number of sectors per FAT */
- ST_DWORD(tbl + BPB_RootClus, 2); /* Root directory start cluster (2) */
- ST_WORD(tbl + BPB_FSInfo, 1); /* FSINFO record offset (VBR + 1) */
- ST_WORD(tbl + BPB_BkBootSec, 6); /* Backup boot record offset (VBR + 6) */
- tbl[BS_DrvNum32] = 0x80; /* Drive number */
- tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
- mem_cpy(tbl + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
- } else if (fmt == FS_FAT16) {
- ST_WORD(tbl + BPB_SecPerTrk, 63); /* Number of sectors per track */
- ST_WORD(tbl + BPB_NumHeads, 255); /* Number of heads */
- ST_DWORD(tbl + BS_VolID, n); /* VSN */
- ST_WORD(tbl + BPB_FATSz16, n_fat); /* Number of sectors per FAT */
- tbl[BS_DrvNum] = 0x80; /* Drive number */
- tbl[BS_BootSig] = 0x29; /* Extended boot signature */
- mem_cpy(tbl + BS_VolLab, "NO NAME " "FAT16 ", 19); /* Volume label, FAT signature */
- } else /* if (fmt == FS_FAT12) */ {
- /* Assume floppy characteristics */
- ST_WORD(tbl + BPB_SecPerTrk, 0x12); /* Number of sectors per track */
- ST_WORD(tbl + BPB_NumHeads, 0x02); /* Number of heads */
- ST_DWORD(tbl + BS_VolID, n); /* VSN */
- ST_WORD(tbl + BPB_FATSz16, n_fat); /* Number of sectors per FAT */
- tbl[BS_DrvNum] = 0x00; /* Drive number */
- tbl[BS_BootSig] = 0x29; /* Extended boot signature */
- mem_cpy(tbl + BS_VolLab, "NO NAME " "FAT12 ", 19); /* Volume label, FAT signature */
- }
- ST_WORD(tbl + BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
- if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
- return FR_DISK_ERR;
- if (fmt == FS_FAT32) /* Write it to the backup VBR if needed (VBR + 6) */
- disk_write(pdrv, tbl, b_vol + 6, 1);
-
- /* Initialize FAT area */
- wsect = b_fat;
- for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
- mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
- n = md; /* Media descriptor byte */
- if (fmt != FS_FAT32) {
- n |= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
- ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT12/16) */
- } else {
- n |= 0xFFFFFF00;
- ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT32) */
- ST_DWORD(tbl + 4, 0xFFFFFFFF);
- ST_DWORD(tbl + 8, 0x0FFFFFFF); /* Reserve cluster #2 for root directory */
- }
- if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
- return FR_DISK_ERR;
- mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
- for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
- if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
- return FR_DISK_ERR;
- }
- }
-
- /* Initialize root directory */
- i = (fmt == FS_FAT32) ? au : (UINT)n_dir;
- do {
- if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
- return FR_DISK_ERR;
- } while (--i);
-
-#if _USE_TRIM /* Erase data area if needed */
- {
- eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
- disk_ioctl(pdrv, CTRL_TRIM, eb);
- }
-#endif
-
- /* Create FSINFO if needed */
- if (fmt == FS_FAT32) {
- ST_DWORD(tbl + FSI_LeadSig, 0x41615252);
- ST_DWORD(tbl + FSI_StrucSig, 0x61417272);
- ST_DWORD(tbl + FSI_Free_Count, n_clst - 1); /* Number of free clusters */
- ST_DWORD(tbl + FSI_Nxt_Free, 2); /* Last allocated cluster# */
- ST_WORD(tbl + BS_55AA, 0xAA55);
- disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR + 1) */
- disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR + 7) */
- }
-
- return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
-}
-
-
-
-#if _MULTI_PARTITION
-/*-----------------------------------------------------------------------*/
-/* Create partition table on the physical drive */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_fdisk (
- BYTE pdrv, /* Physical drive number */
- const DWORD szt[], /* Pointer to the size table for each partitions */
- void* work /* Pointer to the working buffer */
-)
-{
- UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
- BYTE s_hd, e_hd, *p, *buf = (BYTE*)work;
- DSTATUS stat;
- DWORD sz_disk, sz_part, s_part;
-
-
- stat = disk_initialize(pdrv);
- if (stat & STA_NOINIT) return FR_NOT_READY;
- if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
- if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
-
- /* Determine CHS in the table regardless of the drive geometry */
- for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
- if (n == 256) n--;
- e_hd = n - 1;
- sz_cyl = 63 * n;
- tot_cyl = sz_disk / sz_cyl;
-
- /* Create partition table */
- mem_set(buf, 0, _MAX_SS);
- p = buf + MBR_Table; b_cyl = 0;
- for (i = 0; i < 4; i++, p += SZ_PTE) {
- p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
- if (!p_cyl) continue;
- s_part = (DWORD)sz_cyl * b_cyl;
- sz_part = (DWORD)sz_cyl * p_cyl;
- if (i == 0) { /* Exclude first track of cylinder 0 */
- s_hd = 1;
- s_part += 63; sz_part -= 63;
- } else {
- s_hd = 0;
- }
- e_cyl = b_cyl + p_cyl - 1;
- if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
-
- /* Set partition table */
- p[1] = s_hd; /* Start head */
- p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
- p[3] = (BYTE)b_cyl; /* Start cylinder */
- p[4] = 0x06; /* System type (temporary setting) */
- p[5] = e_hd; /* End head */
- p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
- p[7] = (BYTE)e_cyl; /* End cylinder */
- ST_DWORD(p + 8, s_part); /* Start sector in LBA */
- ST_DWORD(p + 12, sz_part); /* Partition size */
-
- /* Next partition */
- b_cyl += p_cyl;
- }
- ST_WORD(p, 0xAA55);
-
- /* Write it to the MBR */
- return (disk_write(pdrv, buf, 0, 1) != RES_OK || disk_ioctl(pdrv, CTRL_SYNC, 0) != RES_OK) ? FR_DISK_ERR : FR_OK;
-}
-
-
-#endif /* _MULTI_PARTITION */
-#endif /* _USE_MKFS && !_FS_READONLY */
-
-
-
-
-#if _USE_STRFUNC
-/*-----------------------------------------------------------------------*/
-/* Get a string from the file */
-/*-----------------------------------------------------------------------*/
-
-TCHAR* f_gets (
- TCHAR* buff, /* Pointer to the string buffer to read */
- int len, /* Size of string buffer (characters) */
- FIL* fp /* Pointer to the file object */
-)
-{
- int n = 0;
- TCHAR c, *p = buff;
- BYTE s[2];
- UINT rc;
-
-
- while (n < len - 1) { /* Read characters until buffer gets filled */
-#if _USE_LFN && _LFN_UNICODE
-#if _STRF_ENCODE == 3 /* Read a character in UTF-8 */
- f_read(fp, s, 1, &rc);
- if (rc != 1) break;
- c = s[0];
- if (c >= 0x80) {
- if (c < 0xC0) continue; /* Skip stray trailer */
- if (c < 0xE0) { /* Two-byte sequence */
- f_read(fp, s, 1, &rc);
- if (rc != 1) break;
- c = (c & 0x1F) << 6 | (s[0] & 0x3F);
- if (c < 0x80) c = '?';
- } else {
- if (c < 0xF0) { /* Three-byte sequence */
- f_read(fp, s, 2, &rc);
- if (rc != 2) break;
- c = c << 12 | (s[0] & 0x3F) << 6 | (s[1] & 0x3F);
- if (c < 0x800) c = '?';
- } else { /* Reject four-byte sequence */
- c = '?';
- }
- }
- }
-#elif _STRF_ENCODE == 2 /* Read a character in UTF-16BE */
- f_read(fp, s, 2, &rc);
- if (rc != 2) break;
- c = s[1] + (s[0] << 8);
-#elif _STRF_ENCODE == 1 /* Read a character in UTF-16LE */
- f_read(fp, s, 2, &rc);
- if (rc != 2) break;
- c = s[0] + (s[1] << 8);
-#else /* Read a character in ANSI/OEM */
- f_read(fp, s, 1, &rc);
- if (rc != 1) break;
- c = s[0];
- if (IsDBCS1(c)) {
- f_read(fp, s, 1, &rc);
- if (rc != 1) break;
- c = (c << 8) + s[0];
- }
- c = ff_convert(c, 1); /* OEM -> Unicode */
- if (!c) c = '?';
-#endif
-#else /* Read a character without conversion */
- f_read(fp, s, 1, &rc);
- if (rc != 1) break;
- c = s[0];
-#endif
- if (_USE_STRFUNC == 2 && c == '\r') continue; /* Strip '\r' */
- *p++ = c;
- n++;
- if (c == '\n') break; /* Break on EOL */
- }
- *p = 0;
- return n ? buff : 0; /* When no data read (eof or error), return with error. */
-}
-
-
-
-
-#if !_FS_READONLY
-#include <stdarg.h>
-/*-----------------------------------------------------------------------*/
-/* Put a character to the file */
-/*-----------------------------------------------------------------------*/
-
-typedef struct {
- FIL* fp;
- int idx, nchr;
- BYTE buf[64];
-} putbuff;
-
-
-static
-void putc_bfd (
- putbuff* pb,
- TCHAR c
-)
-{
- UINT bw;
- int i;
-
-
- if (_USE_STRFUNC == 2 && c == '\n') /* LF -> CRLF conversion */
- putc_bfd(pb, '\r');
-
- i = pb->idx; /* Buffer write index (-1:error) */
- if (i < 0) return;
-
-#if _USE_LFN && _LFN_UNICODE
-#if _STRF_ENCODE == 3 /* Write a character in UTF-8 */
- if (c < 0x80) { /* 7-bit */
- pb->buf[i++] = (BYTE)c;
- } else {
- if (c < 0x800) { /* 11-bit */
- pb->buf[i++] = (BYTE)(0xC0 | c >> 6);
- } else { /* 16-bit */
- pb->buf[i++] = (BYTE)(0xE0 | c >> 12);
- pb->buf[i++] = (BYTE)(0x80 | (c >> 6 & 0x3F));
- }
- pb->buf[i++] = (BYTE)(0x80 | (c & 0x3F));
- }
-#elif _STRF_ENCODE == 2 /* Write a character in UTF-16BE */
- pb->buf[i++] = (BYTE)(c >> 8);
- pb->buf[i++] = (BYTE)c;
-#elif _STRF_ENCODE == 1 /* Write a character in UTF-16LE */
- pb->buf[i++] = (BYTE)c;
- pb->buf[i++] = (BYTE)(c >> 8);
-#else /* Write a character in ANSI/OEM */
- c = ff_convert(c, 0); /* Unicode -> OEM */
- if (!c) c = '?';
- if (c >= 0x100)
- pb->buf[i++] = (BYTE)(c >> 8);
- pb->buf[i++] = (BYTE)c;
-#endif
-#else /* Write a character without conversion */
- pb->buf[i++] = (BYTE)c;
-#endif
-
- if (i >= (int)(sizeof pb->buf) - 3) { /* Write buffered characters to the file */
- f_write(pb->fp, pb->buf, (UINT)i, &bw);
- i = (bw == (UINT)i) ? 0 : -1;
- }
- pb->idx = i;
- pb->nchr++;
-}
-
-
-
-int f_putc (
- TCHAR c, /* A character to be output */
- FIL* fp /* Pointer to the file object */
-)
-{
- putbuff pb;
- UINT nw;
-
-
- pb.fp = fp; /* Initialize output buffer */
- pb.nchr = pb.idx = 0;
-
- putc_bfd(&pb, c); /* Put a character */
-
- if ( pb.idx >= 0 /* Flush buffered characters to the file */
- && f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
- && (UINT)pb.idx == nw) return pb.nchr;
- return EOF;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Put a string to the file */
-/*-----------------------------------------------------------------------*/
-
-int f_puts (
- const TCHAR* str, /* Pointer to the string to be output */
- FIL* fp /* Pointer to the file object */
-)
-{
- putbuff pb;
- UINT nw;
-
-
- pb.fp = fp; /* Initialize output buffer */
- pb.nchr = pb.idx = 0;
-
- while (*str) /* Put the string */
- putc_bfd(&pb, *str++);
-
- if ( pb.idx >= 0 /* Flush buffered characters to the file */
- && f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
- && (UINT)pb.idx == nw) return pb.nchr;
- return EOF;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Put a formatted string to the file */
-/*-----------------------------------------------------------------------*/
-
-int f_printf (
- FIL* fp, /* Pointer to the file object */
- const TCHAR* fmt, /* Pointer to the format string */
- ... /* Optional arguments... */
-)
-{
- va_list arp;
- BYTE f, r;
- UINT nw, i, j, w;
- DWORD v;
- TCHAR c, d, s[16], *p;
- putbuff pb;
-
-
- pb.fp = fp; /* Initialize output buffer */
- pb.nchr = pb.idx = 0;
-
- va_start(arp, fmt);
-
- for (;;) {
- c = *fmt++;
- if (c == 0) break; /* End of string */
- if (c != '%') { /* Non escape character */
- putc_bfd(&pb, c);
- continue;
- }
- w = f = 0;
- c = *fmt++;
- if (c == '0') { /* Flag: '0' padding */
- f = 1; c = *fmt++;
- } else {
- if (c == '-') { /* Flag: left justified */
- f = 2; c = *fmt++;
- }
- }
- while (IsDigit(c)) { /* Precision */
- w = w * 10 + c - '0';
- c = *fmt++;
- }
- if (c == 'l' || c == 'L') { /* Prefix: Size is long int */
- f |= 4; c = *fmt++;
- }
- if (!c) break;
- d = c;
- if (IsLower(d)) d -= 0x20;
- switch (d) { /* Type is... */
- case 'S' : /* String */
- p = va_arg(arp, TCHAR*);
- for (j = 0; p[j]; j++) ;
- if (!(f & 2)) {
- while (j++ < w) putc_bfd(&pb, ' ');
- }
- while (*p) putc_bfd(&pb, *p++);
- while (j++ < w) putc_bfd(&pb, ' ');
- continue;
- case 'C' : /* Character */
- putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue;
- case 'B' : /* Binary */
- r = 2; break;
- case 'O' : /* Octal */
- r = 8; break;
- case 'D' : /* Signed decimal */
- case 'U' : /* Unsigned decimal */
- r = 10; break;
- case 'X' : /* Hexdecimal */
- r = 16; break;
- default: /* Unknown type (pass-through) */
- putc_bfd(&pb, c); continue;
- }
-
- /* Get an argument and put it in numeral */
- v = (f & 4) ? (DWORD)va_arg(arp, long) : ((d == 'D') ? (DWORD)(long)va_arg(arp, int) : (DWORD)va_arg(arp, unsigned int));
- if (d == 'D' && (v & 0x80000000)) {
- v = 0 - v;
- f |= 8;
- }
- i = 0;
- do {
- d = (TCHAR)(v % r); v /= r;
- if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
- s[i++] = d + '0';
- } while (v && i < sizeof s / sizeof s[0]);
- if (f & 8) s[i++] = '-';
- j = i; d = (f & 1) ? '0' : ' ';
- while (!(f & 2) && j++ < w) putc_bfd(&pb, d);
- do putc_bfd(&pb, s[--i]); while (i);
- while (j++ < w) putc_bfd(&pb, d);
- }
-
- va_end(arp);
-
- if ( pb.idx >= 0 /* Flush buffered characters to the file */
- && f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
- && (UINT)pb.idx == nw) return pb.nchr;
- return EOF;
-}
-
-#endif /* !_FS_READONLY */
-#endif /* _USE_STRFUNC */
projects / reactos.git / blobdiff