X-Git-Url: http://cloudbase.mooo.com/gitweb/z180-stamp.git/blobdiff_plain/70702af1370e44e32fb2c3c507e4759a187b4fe5:/fatfs/src/ff.c..289f6a146c0b2087607d8d8659531ea90142779a:/fatfs/source/ff.c diff --git a/fatfs/src/ff.c b/fatfs/source/ff.c similarity index 51% rename from fatfs/src/ff.c rename to fatfs/source/ff.c index ffc5240..a114c6b 100644 --- a/fatfs/src/ff.c +++ b/fatfs/source/ff.c @@ -1,13 +1,13 @@ /*----------------------------------------------------------------------------/ -/ FatFs - Generic FAT file system module R0.12b / +/ FatFs - Generic FAT Filesystem Module R0.13b / /-----------------------------------------------------------------------------/ / -/ Copyright (C) 2016, ChaN, all right reserved. +/ Copyright (C) 2018, ChaN, all right reserved. / / FatFs module is an open source software. Redistribution and use of FatFs in / source and binary forms, with or without modification, are permitted provided / that the following condition is met: - +/ / 1. Redistributions of source code must retain the above copyright notice, / this condition and the following disclaimer. / @@ -15,6 +15,7 @@ / 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. +/ /----------------------------------------------------------------------------*/ @@ -28,343 +29,34 @@ ---------------------------------------------------------------------------*/ -#if _FATFS != 68020 /* Revision ID */ +#if FF_DEFINED != 63463 /* Revision ID */ #error Wrong include file (ff.h). #endif -#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); } - - -/* 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 - - - -/* 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 */ -#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 lock controls */ -#if _FS_LOCK != 0 -#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) */ - DWORD ofs; /* Object ID 3, directory offset */ - 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, \ - 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,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 != 0 -#error Cannot enable LFN 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 != 0 /* Code page is DBCS */ +#define IsUpper(c) ((c) >= 'A' && (c) <= 'Z') +#define IsLower(c) ((c) >= 'a' && (c) <= 'z') +#define IsDigit(c) ((c) >= '0' && (c) <= '9') +#define IsSurrogate(c) ((c) >= 0xD800 && (c) <= 0xDFFF) +#define IsSurrogateH(c) ((c) >= 0xD800 && (c) <= 0xDBFF) +#define IsSurrogateL(c) ((c) >= 0xDC00 && (c) <= 0xDFFF) -#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 */ - - -/* File attribute bits (internal use) */ -#define AM_VOL 0x08 /* Volume label */ +/* Additional file attribute bits for internal use */ +#define AM_VOL 0x08 /* Volume label */ #define AM_LFN 0x0F /* LFN entry */ #define AM_MASK 0x3F /* Mask of defined bits */ -/* File access control and file status flags (internal use) */ +/* Additional file access control and file status flags for internal use */ #define FA_SEEKEND 0x20 /* Seek to end of the file on file open */ #define FA_MODIFIED 0x40 /* File has been modified */ #define FA_DIRTY 0x80 /* FIL.buf[] needs to be written-back */ -/* Name status flags */ -#define NSFLAG 11 /* Index of name status byte in fn[] */ +/* Name status flags in fn[11] */ +#define NSFLAG 11 /* Index of the name status byte */ #define NS_LOSS 0x01 /* Out of 8.3 format */ #define NS_LFN 0x02 /* Force to create LFN entry */ #define NS_LAST 0x04 /* Last segment */ @@ -375,18 +67,17 @@ typedef struct { #define NS_NONAME 0x80 /* Not followed */ -/* Limits and boundaries (differ from specs but correct for real DOS/Windows) */ -#define MAX_FAT12 0xFF5 /* Maximum number of FAT12 clusters */ -#define MAX_FAT16 0xFFF5 /* Maximum number of FAT16 clusters */ -#define MAX_FAT32 0xFFFFFF5 /* Maximum number of FAT32 clusters */ -#define MAX_EXFAT 0x7FFFFFFD /* Maximum number of exFAT clusters (limited by implementation) */ -#define MAX_DIR 0x200000 /* Maximum size of FAT directory */ -#define MAX_DIR_EX 0x10000000 /* Maximum size of exFAT directory */ +/* Limits and boundaries */ +#define MAX_DIR 0x200000 /* Max size of FAT directory */ +#define MAX_DIR_EX 0x10000000 /* Max size of exFAT directory */ +#define MAX_FAT12 0xFF5 /* Max FAT12 clusters (differs from specs, but right for real DOS/Windows behavior) */ +#define MAX_FAT16 0xFFF5 /* Max FAT16 clusters (differs from specs, but right for real DOS/Windows behavior) */ +#define MAX_FAT32 0x0FFFFFF5 /* Max FAT32 clusters (not specified, practical limit) */ +#define MAX_EXFAT 0x7FFFFFFD /* Max exFAT clusters (differs from specs, implementation limit) */ -/* 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 */ +/* FatFs refers the FAT structure as simple byte array instead of structure member +/ because the C structure is not binary compatible between different platforms */ #define BS_JmpBoot 0 /* x86 jump instruction (3-byte) */ #define BS_OEMName 3 /* OEM name (8-byte) */ @@ -394,26 +85,26 @@ typedef struct { #define BPB_SecPerClus 13 /* Cluster size [sector] (BYTE) */ #define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (WORD) */ #define BPB_NumFATs 16 /* Number of FATs (BYTE) */ -#define BPB_RootEntCnt 17 /* Size of root directory area for FAT12/16 [entry] (WORD) */ +#define BPB_RootEntCnt 17 /* Size of root directory area for FAT [entry] (WORD) */ #define BPB_TotSec16 19 /* Volume size (16-bit) [sector] (WORD) */ #define BPB_Media 21 /* Media descriptor byte (BYTE) */ #define BPB_FATSz16 22 /* FAT size (16-bit) [sector] (WORD) */ -#define BPB_SecPerTrk 24 /* Track size for int13h [sector] (WORD) */ +#define BPB_SecPerTrk 24 /* Number of sectors per track for int13h [sector] (WORD) */ #define BPB_NumHeads 26 /* Number of heads for int13h (WORD) */ #define BPB_HiddSec 28 /* Volume offset from top of the drive (DWORD) */ #define BPB_TotSec32 32 /* Volume size (32-bit) [sector] (DWORD) */ #define BS_DrvNum 36 /* Physical drive number for int13h (BYTE) */ -#define BS_NTres 37 /* Error flag (BYTE) */ +#define BS_NTres 37 /* WindowsNT error flag (BYTE) */ #define BS_BootSig 38 /* Extended boot signature (BYTE) */ #define BS_VolID 39 /* Volume serial number (DWORD) */ #define BS_VolLab 43 /* Volume label string (8-byte) */ -#define BS_FilSysType 54 /* File system type string (8-byte) */ +#define BS_FilSysType 54 /* Filesystem type string (8-byte) */ #define BS_BootCode 62 /* Boot code (448-byte) */ #define BS_55AA 510 /* Signature word (WORD) */ #define BPB_FATSz32 36 /* FAT32: FAT size [sector] (DWORD) */ #define BPB_ExtFlags32 40 /* FAT32: Extended flags (WORD) */ -#define BPB_FSVer32 42 /* FAT32: File system version (WORD) */ +#define BPB_FSVer32 42 /* FAT32: Filesystem version (WORD) */ #define BPB_RootClus32 44 /* FAT32: Root directory cluster (DWORD) */ #define BPB_FSInfo32 48 /* FAT32: Offset of FSINFO sector (WORD) */ #define BPB_BkBootSec32 50 /* FAT32: Offset of backup boot sector (WORD) */ @@ -422,7 +113,7 @@ typedef struct { #define BS_BootSig32 66 /* FAT32: Extended boot signature (BYTE) */ #define BS_VolID32 67 /* FAT32: Volume serial number (DWORD) */ #define BS_VolLab32 71 /* FAT32: Volume label string (8-byte) */ -#define BS_FilSysType32 82 /* FAT32: File system type string (8-byte) */ +#define BS_FilSysType32 82 /* FAT32: Filesystem type string (8-byte) */ #define BS_BootCode32 90 /* FAT32: Boot code (420-byte) */ #define BPB_ZeroedEx 11 /* exFAT: MBZ field (53-byte) */ @@ -432,26 +123,67 @@ typedef struct { #define BPB_FatSzEx 84 /* exFAT: FAT size [sector] (DWORD) */ #define BPB_DataOfsEx 88 /* exFAT: Data offset from top of the volume [sector] (DWORD) */ #define BPB_NumClusEx 92 /* exFAT: Number of clusters (DWORD) */ -#define BPB_RootClusEx 96 /* exFAT: Root directory cluster (DWORD) */ +#define BPB_RootClusEx 96 /* exFAT: Root directory start cluster (DWORD) */ #define BPB_VolIDEx 100 /* exFAT: Volume serial number (DWORD) */ -#define BPB_FSVerEx 104 /* exFAT: File system version (WORD) */ -#define BPB_VolFlagEx 106 /* exFAT: Volume flags (BYTE) */ -#define BPB_ActFatEx 107 /* exFAT: Active FAT flags (BYTE) */ -#define BPB_BytsPerSecEx 108 /* exFAT: Log2 of sector size in byte (BYTE) */ -#define BPB_SecPerClusEx 109 /* exFAT: Log2 of cluster size in sector (BYTE) */ +#define BPB_FSVerEx 104 /* exFAT: Filesystem version (WORD) */ +#define BPB_VolFlagEx 106 /* exFAT: Volume flags (WORD) */ +#define BPB_BytsPerSecEx 108 /* exFAT: Log2 of sector size in unit of byte (BYTE) */ +#define BPB_SecPerClusEx 109 /* exFAT: Log2 of cluster size in unit of sector (BYTE) */ #define BPB_NumFATsEx 110 /* exFAT: Number of FATs (BYTE) */ #define BPB_DrvNumEx 111 /* exFAT: Physical drive number for int13h (BYTE) */ #define BPB_PercInUseEx 112 /* exFAT: Percent in use (BYTE) */ -#define BPB_RsvdEx 113 /* exFAT: Reserved (7-byte) */ +#define BPB_RsvdEx 113 /* exFAT: Reserved (7-byte) */ #define BS_BootCodeEx 120 /* exFAT: Boot code (390-byte) */ -#define FSI_LeadSig 0 /* FAT32 FSI: Leading signature (DWORD) */ -#define FSI_StrucSig 484 /* FAT32 FSI: Structure signature (DWORD) */ -#define FSI_Free_Count 488 /* FAT32 FSI: Number of free clusters (DWORD) */ -#define FSI_Nxt_Free 492 /* FAT32 FSI: Last allocated cluster (DWORD) */ +#define DIR_Name 0 /* Short file name (11-byte) */ +#define DIR_Attr 11 /* Attribute (BYTE) */ +#define DIR_NTres 12 /* Lower case flag (BYTE) */ +#define DIR_CrtTime10 13 /* Created time sub-second (BYTE) */ +#define DIR_CrtTime 14 /* Created time (DWORD) */ +#define DIR_LstAccDate 18 /* Last accessed date (WORD) */ +#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (WORD) */ +#define DIR_ModTime 22 /* Modified time (DWORD) */ +#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (WORD) */ +#define DIR_FileSize 28 /* File size (DWORD) */ +#define LDIR_Ord 0 /* LFN: LFN order and LLE flag (BYTE) */ +#define LDIR_Attr 11 /* LFN: LFN attribute (BYTE) */ +#define LDIR_Type 12 /* LFN: Entry type (BYTE) */ +#define LDIR_Chksum 13 /* LFN: Checksum of the SFN (BYTE) */ +#define LDIR_FstClusLO 26 /* LFN: MBZ field (WORD) */ +#define XDIR_Type 0 /* exFAT: Type of exFAT directory entry (BYTE) */ +#define XDIR_NumLabel 1 /* exFAT: Number of volume label characters (BYTE) */ +#define XDIR_Label 2 /* exFAT: Volume label (11-WORD) */ +#define XDIR_CaseSum 4 /* exFAT: Sum of case conversion table (DWORD) */ +#define XDIR_NumSec 1 /* exFAT: Number of secondary entries (BYTE) */ +#define XDIR_SetSum 2 /* exFAT: Sum of the set of directory entries (WORD) */ +#define XDIR_Attr 4 /* exFAT: File attribute (WORD) */ +#define XDIR_CrtTime 8 /* exFAT: Created time (DWORD) */ +#define XDIR_ModTime 12 /* exFAT: Modified time (DWORD) */ +#define XDIR_AccTime 16 /* exFAT: Last accessed time (DWORD) */ +#define XDIR_CrtTime10 20 /* exFAT: Created time subsecond (BYTE) */ +#define XDIR_ModTime10 21 /* exFAT: Modified time subsecond (BYTE) */ +#define XDIR_CrtTZ 22 /* exFAT: Created timezone (BYTE) */ +#define XDIR_ModTZ 23 /* exFAT: Modified timezone (BYTE) */ +#define XDIR_AccTZ 24 /* exFAT: Last accessed timezone (BYTE) */ +#define XDIR_GenFlags 33 /* exFAT: General secondary flags (BYTE) */ +#define XDIR_NumName 35 /* exFAT: Number of file name characters (BYTE) */ +#define XDIR_NameHash 36 /* exFAT: Hash of file name (WORD) */ +#define XDIR_ValidFileSize 40 /* exFAT: Valid file size (QWORD) */ +#define XDIR_FstClus 52 /* exFAT: First cluster of the file data (DWORD) */ +#define XDIR_FileSize 56 /* exFAT: File/Directory size (QWORD) */ + +#define SZDIRE 32 /* Size of a directory entry */ +#define DDEM 0xE5 /* Deleted directory entry mark set to DIR_Name[0] */ +#define RDDEM 0x05 /* Replacement of the character collides with DDEM */ +#define LLEF 0x40 /* Last long entry flag in LDIR_Ord */ + +#define FSI_LeadSig 0 /* FAT32 FSI: Leading signature (DWORD) */ +#define FSI_StrucSig 484 /* FAT32 FSI: Structure signature (DWORD) */ +#define FSI_Free_Count 488 /* FAT32 FSI: Number of free clusters (DWORD) */ +#define FSI_Nxt_Free 492 /* FAT32 FSI: Last allocated cluster (DWORD) */ #define MBR_Table 446 /* MBR: Offset of partition table in the MBR */ -#define SZ_PTE 16 /* MBR: Size of a partition table entry */ +#define SZ_PTE 16 /* MBR: Size of a partition table entry */ #define PTE_Boot 0 /* MBR PTE: Boot indicator */ #define PTE_StHead 1 /* MBR PTE: Start head */ #define PTE_StSec 2 /* MBR PTE: Start sector */ @@ -463,49 +195,218 @@ typedef struct { #define PTE_StLba 8 /* MBR PTE: Start in LBA */ #define PTE_SizLba 12 /* MBR PTE: Size in LBA */ -#define DIR_Name 0 /* Short file name (11-byte) */ -#define DIR_Attr 11 /* Attribute (BYTE) */ -#define DIR_NTres 12 /* Lower case flag (BYTE) */ -#define DIR_CrtTime10 13 /* Created time sub-second (BYTE) */ -#define DIR_CrtTime 14 /* Created time (DWORD) */ -#define DIR_LstAccDate 18 /* Last accessed date (WORD) */ -#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (WORD) */ -#define DIR_ModTime 22 /* Modified time (DWORD) */ -#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (WORD) */ -#define DIR_FileSize 28 /* File size (DWORD) */ -#define LDIR_Ord 0 /* LFN entry order and LLE flag (BYTE) */ -#define LDIR_Attr 11 /* LFN attribute (BYTE) */ -#define LDIR_Type 12 /* LFN type (BYTE) */ -#define LDIR_Chksum 13 /* Checksum of the SFN entry (BYTE) */ -#define LDIR_FstClusLO 26 /* Must be zero (WORD) */ -#define XDIR_Type 0 /* Type of exFAT directory entry (BYTE) */ -#define XDIR_NumLabel 1 /* Number of volume label characters (BYTE) */ -#define XDIR_Label 2 /* Volume label (11-WORD) */ -#define XDIR_CaseSum 4 /* Sum of case conversion table (DWORD) */ -#define XDIR_NumSec 1 /* Number of secondary entries (BYTE) */ -#define XDIR_SetSum 2 /* Sum of the set of directory entries (WORD) */ -#define XDIR_Attr 4 /* File attribute (WORD) */ -#define XDIR_CrtTime 8 /* Created time (DWORD) */ -#define XDIR_ModTime 12 /* Modified time (DWORD) */ -#define XDIR_AccTime 16 /* Last accessed time (DWORD) */ -#define XDIR_CrtTime10 20 /* Created time subsecond (BYTE) */ -#define XDIR_ModTime10 21 /* Modified time subsecond (BYTE) */ -#define XDIR_CrtTZ 22 /* Created timezone (BYTE) */ -#define XDIR_ModTZ 23 /* Modified timezone (BYTE) */ -#define XDIR_AccTZ 24 /* Last accessed timezone (BYTE) */ -#define XDIR_GenFlags 33 /* Gneral secondary flags (WORD) */ -#define XDIR_NumName 35 /* Number of file name characters (BYTE) */ -#define XDIR_NameHash 36 /* Hash of file name (WORD) */ -#define XDIR_ValidFileSize 40 /* Valid file size (QWORD) */ -#define XDIR_FstClus 52 /* First cluster of the file data (DWORD) */ -#define XDIR_FileSize 56 /* File/Directory size (QWORD) */ - -#define SZDIRE 32 /* Size of a directory entry */ -#define LLEF 0x40 /* Last long entry flag in LDIR_Ord */ -#define DDEM 0xE5 /* Deleted directory entry mark set to DIR_Name[0] */ -#define RDDEM 0x05 /* Replacement of the character collides with DDEM */ + +/* Post process on fatal error in the file operations */ +#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); } + + +/* Re-entrancy related */ +#if FF_FS_REENTRANT +#if FF_USE_LFN == 1 +#error Static LFN work area cannot be used at thread-safe configuration +#endif +#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; } +#else +#define LEAVE_FF(fs, res) return res +#endif + + +/* Definitions of volume - physical location conversion */ +#if FF_MULTI_PARTITION +#define LD2PD(vol) VolToPart[vol].pd /* Get physical drive number */ +#define LD2PT(vol) VolToPart[vol].pt /* Get partition index */ +#else +#define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */ +#define LD2PT(vol) 0 /* Find first valid partition or in SFD */ +#endif + + +/* Definitions of sector size */ +#if (FF_MAX_SS < FF_MIN_SS) || (FF_MAX_SS != 512 && FF_MAX_SS != 1024 && FF_MAX_SS != 2048 && FF_MAX_SS != 4096) || (FF_MIN_SS != 512 && FF_MIN_SS != 1024 && FF_MIN_SS != 2048 && FF_MIN_SS != 4096) +#error Wrong sector size configuration +#endif +#if FF_MAX_SS == FF_MIN_SS +#define SS(fs) ((UINT)FF_MAX_SS) /* Fixed sector size */ +#else +#define SS(fs) ((fs)->ssize) /* Variable sector size */ +#endif +/* Timestamp */ +#if FF_FS_NORTC == 1 +#if FF_NORTC_YEAR < 1980 || FF_NORTC_YEAR > 2107 || FF_NORTC_MON < 1 || FF_NORTC_MON > 12 || FF_NORTC_MDAY < 1 || FF_NORTC_MDAY > 31 +#error Invalid FF_FS_NORTC settings +#endif +#define GET_FATTIME() ((DWORD)(FF_NORTC_YEAR - 1980) << 25 | (DWORD)FF_NORTC_MON << 21 | (DWORD)FF_NORTC_MDAY << 16) +#else +#define GET_FATTIME() get_fattime() +#endif + + +/* File lock controls */ +#if FF_FS_LOCK != 0 +#if FF_FS_READONLY +#error FF_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, containing directory (0:root) */ + DWORD ofs; /* Object ID 3, offset in the directory */ + WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */ +} FILESEM; +#endif + + +/* SBCS up-case tables (\x80-\xFF) */ +#define TBL_CT437 {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} +#define TBL_CT720 {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} +#define TBL_CT737 {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} +#define TBL_CT771 {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} +#define TBL_CT775 {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} +#define TBL_CT850 {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} +#define TBL_CT852 {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} +#define TBL_CT855 {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} +#define TBL_CT857 {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} +#define TBL_CT860 {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} +#define TBL_CT861 {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} +#define TBL_CT862 {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} +#define TBL_CT863 {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} +#define TBL_CT864 {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} +#define TBL_CT865 {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} +#define TBL_CT866 {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, \ + 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT869 {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} + + +/* DBCS code range |----- 1st byte -----| |----------- 2nd byte -----------| */ +#define TBL_DC932 {0x81, 0x9F, 0xE0, 0xFC, 0x40, 0x7E, 0x80, 0xFC, 0x00, 0x00} +#define TBL_DC936 {0x81, 0xFE, 0x00, 0x00, 0x40, 0x7E, 0x80, 0xFE, 0x00, 0x00} +#define TBL_DC949 {0x81, 0xFE, 0x00, 0x00, 0x41, 0x5A, 0x61, 0x7A, 0x81, 0xFE} +#define TBL_DC950 {0x81, 0xFE, 0x00, 0x00, 0x40, 0x7E, 0xA1, 0xFE, 0x00, 0x00} + + +/* Macros for table definitions */ +#define MERGE_2STR(a, b) a ## b +#define MKCVTBL(hd, cp) MERGE_2STR(hd, cp) + @@ -514,75 +415,143 @@ typedef struct { Module Private Work Area ---------------------------------------------------------------------------*/ - -/* Remark: Variables here without initial value shall be guaranteed zero/null -/ at start-up. If not, either the linker or start-up routine being used is +/* Remark: Variables defined here without initial value shall be guaranteed +/ zero/null at start-up. If not, the linker option or start-up routine is / not compliance with C standard. */ -#if _VOLUMES < 1 || _VOLUMES > 9 -#error Wrong _VOLUMES setting +/*--------------------------------*/ +/* File/Volume controls */ +/*--------------------------------*/ + +#if FF_VOLUMES < 1 || FF_VOLUMES > 10 +#error Wrong FF_VOLUMES setting #endif -static FATFS *FatFs[_VOLUMES]; /* Pointer to the file system objects (logical drives) */ -static WORD Fsid; /* File system mount ID */ +static FATFS* FatFs[FF_VOLUMES]; /* Pointer to the filesystem objects (logical drives) */ +static WORD Fsid; /* Filesystem mount ID */ -#if _FS_RPATH != 0 && _VOLUMES >= 2 -static BYTE CurrVol; /* Current drive */ +#if FF_FS_RPATH != 0 +static BYTE CurrVol; /* Current drive */ #endif -#if _FS_LOCK != 0 -static FILESEM Files[_FS_LOCK]; /* Open object lock semaphores */ +#if FF_FS_LOCK != 0 +static FILESEM Files[FF_FS_LOCK]; /* Open object lock semaphores */ #endif -#if _USE_LFN == 0 /* Non-LFN configuration */ -#define DEF_NAMBUF +#if FF_STR_VOLUME_ID +#ifdef FF_VOLUME_STRS +static const char* const VolumeStr[FF_VOLUMES] = {FF_VOLUME_STRS}; /* Pre-defined volume ID */ +#endif +#endif + + +/*--------------------------------*/ +/* LFN/Directory working buffer */ +/*--------------------------------*/ + +#if FF_USE_LFN == 0 /* Non-LFN configuration */ +#if FF_FS_EXFAT +#error LFN must be enabled when enable exFAT +#endif +#define DEF_NAMBUF #define INIT_NAMBUF(fs) -#define FREE_NAMBUF() -#else -#if _MAX_LFN < 12 || _MAX_LFN > 255 -#error Wrong _MAX_LFN setting +#define FREE_NAMBUF() +#define LEAVE_MKFS(res) return res + +#else /* LFN configurations */ +#if FF_MAX_LFN < 12 || FF_MAX_LFN > 255 +#error Wrong setting of FF_MAX_LFN +#endif +#if FF_LFN_BUF < FF_SFN_BUF || FF_SFN_BUF < 12 +#error Wrong setting of FF_LFN_BUF or FF_SFN_BUF #endif +#if FF_LFN_UNICODE < 0 || FF_LFN_UNICODE > 3 +#error Wrong setting of FF_LFN_UNICODE +#endif +static const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* FAT: Offset of LFN characters in the directory entry */ +#define MAXDIRB(nc) ((nc + 44U) / 15 * SZDIRE) /* exFAT: Size of directory entry block scratchpad buffer needed for the name length */ -#if _USE_LFN == 1 /* LFN enabled with static working buffer */ -#if _FS_EXFAT -static BYTE DirBuf[SZDIRE*19]; /* Directory entry block scratchpad buffer (19 entries in size) */ +#if FF_USE_LFN == 1 /* LFN enabled with static working buffer */ +#if FF_FS_EXFAT +static BYTE DirBuf[MAXDIRB(FF_MAX_LFN)]; /* Directory entry block scratchpad buffer */ #endif -static WCHAR LfnBuf[_MAX_LFN+1]; /* LFN enabled with static working buffer */ -#define DEF_NAMBUF +static WCHAR LfnBuf[FF_MAX_LFN + 1]; /* LFN working buffer */ +#define DEF_NAMBUF #define INIT_NAMBUF(fs) -#define FREE_NAMBUF() +#define FREE_NAMBUF() +#define LEAVE_MKFS(res) return res -#elif _USE_LFN == 2 /* LFN enabled with dynamic working buffer on the stack */ -#if _FS_EXFAT -#define DEF_NAMBUF WCHAR lbuf[_MAX_LFN+1]; BYTE dbuf[SZDIRE*19]; +#elif FF_USE_LFN == 2 /* LFN enabled with dynamic working buffer on the stack */ +#if FF_FS_EXFAT +#define DEF_NAMBUF WCHAR lbuf[FF_MAX_LFN+1]; BYTE dbuf[MAXDIRB(FF_MAX_LFN)]; /* LFN working buffer and directory entry block scratchpad buffer */ #define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; (fs)->dirbuf = dbuf; } -#define FREE_NAMBUF() +#define FREE_NAMBUF() #else -#define DEF_NAMBUF WCHAR lbuf[_MAX_LFN+1]; +#define DEF_NAMBUF WCHAR lbuf[FF_MAX_LFN+1]; /* LFN working buffer */ #define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; } -#define FREE_NAMBUF() +#define FREE_NAMBUF() #endif +#define LEAVE_MKFS(res) return res -#elif _USE_LFN == 3 /* LFN enabled with dynamic working buffer on the heap */ -#if _FS_EXFAT -#define DEF_NAMBUF WCHAR *lfn; -#define INIT_NAMBUF(fs) { lfn = ff_memalloc((_MAX_LFN+1)*2 + SZDIRE*19); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; (fs)->dirbuf = (BYTE*)(lfn+_MAX_LFN+1); } -#define FREE_NAMBUF() ff_memfree(lfn) +#elif FF_USE_LFN == 3 /* LFN enabled with dynamic working buffer on the heap */ +#if FF_FS_EXFAT +#define DEF_NAMBUF WCHAR *lfn; /* Pointer to LFN working buffer and directory entry block scratchpad buffer */ +#define INIT_NAMBUF(fs) { lfn = ff_memalloc((FF_MAX_LFN+1)*2 + MAXDIRB(FF_MAX_LFN)); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; (fs)->dirbuf = (BYTE*)(lfn+FF_MAX_LFN+1); } +#define FREE_NAMBUF() ff_memfree(lfn) #else -#define DEF_NAMBUF WCHAR *lfn; -#define INIT_NAMBUF(fs) { lfn = ff_memalloc((_MAX_LFN+1)*2); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; } -#define FREE_NAMBUF() ff_memfree(lfn) +#define DEF_NAMBUF WCHAR *lfn; /* Pointer to LFN working buffer */ +#define INIT_NAMBUF(fs) { lfn = ff_memalloc((FF_MAX_LFN+1)*2); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; } +#define FREE_NAMBUF() ff_memfree(lfn) #endif +#define LEAVE_MKFS(res) { if (!work) ff_memfree(buf); return res; } +#define MAX_MALLOC 0x8000 /* Must be >=FF_MAX_SS */ #else -#error Wrong _USE_LFN setting -#endif -#endif +#error Wrong setting of FF_USE_LFN -#ifdef _EXCVT -static const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for SBCS extended characters */ -#endif +#endif /* FF_USE_LFN == 1 */ +#endif /* FF_USE_LFN == 0 */ + + + +/*--------------------------------*/ +/* Code conversion tables */ +/*--------------------------------*/ + +#if FF_CODE_PAGE == 0 /* Run-time code page configuration */ +#define CODEPAGE CodePage +static WORD CodePage; /* Current code page */ +static const BYTE *ExCvt, *DbcTbl; /* Pointer to current SBCS up-case table and DBCS code range table below */ +static const BYTE Ct437[] = TBL_CT437; +static const BYTE Ct720[] = TBL_CT720; +static const BYTE Ct737[] = TBL_CT737; +static const BYTE Ct771[] = TBL_CT771; +static const BYTE Ct775[] = TBL_CT775; +static const BYTE Ct850[] = TBL_CT850; +static const BYTE Ct852[] = TBL_CT852; +static const BYTE Ct855[] = TBL_CT855; +static const BYTE Ct857[] = TBL_CT857; +static const BYTE Ct860[] = TBL_CT860; +static const BYTE Ct861[] = TBL_CT861; +static const BYTE Ct862[] = TBL_CT862; +static const BYTE Ct863[] = TBL_CT863; +static const BYTE Ct864[] = TBL_CT864; +static const BYTE Ct865[] = TBL_CT865; +static const BYTE Ct866[] = TBL_CT866; +static const BYTE Ct869[] = TBL_CT869; +static const BYTE Dc932[] = TBL_DC932; +static const BYTE Dc936[] = TBL_DC936; +static const BYTE Dc949[] = TBL_DC949; +static const BYTE Dc950[] = TBL_DC950; + +#elif FF_CODE_PAGE < 900 /* Static code page configuration (SBCS) */ +#define CODEPAGE FF_CODE_PAGE +static const BYTE ExCvt[] = MKCVTBL(TBL_CT, FF_CODE_PAGE); +#else /* Static code page configuration (DBCS) */ +#define CODEPAGE FF_CODE_PAGE +static const BYTE DbcTbl[] = MKCVTBL(TBL_DC, FF_CODE_PAGE); +#endif @@ -598,8 +567,7 @@ static const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for SBCS extended /* Load/Store multi-byte word in the FAT structure */ /*-----------------------------------------------------------------------*/ -static -WORD ld_word (const BYTE* ptr) /* Load a 2-byte little-endian word */ +static WORD ld_word (const BYTE* ptr) /* Load a 2-byte little-endian word */ { WORD rv; @@ -608,8 +576,7 @@ WORD ld_word (const BYTE* ptr) /* Load a 2-byte little-endian word */ return rv; } -static -DWORD ld_dword (const BYTE* ptr) /* Load a 4-byte little-endian word */ +static DWORD ld_dword (const BYTE* ptr) /* Load a 4-byte little-endian word */ { DWORD rv; @@ -620,9 +587,8 @@ DWORD ld_dword (const BYTE* ptr) /* Load a 4-byte little-endian word */ return rv; } -#if _FS_EXFAT -static -QWORD ld_qword (const BYTE* ptr) /* Load an 8-byte little-endian word */ +#if FF_FS_EXFAT +static QWORD ld_qword (const BYTE* ptr) /* Load an 8-byte little-endian word */ { QWORD rv; @@ -638,16 +604,14 @@ QWORD ld_qword (const BYTE* ptr) /* Load an 8-byte little-endian word */ } #endif -#if !_FS_READONLY -static -void st_word (BYTE* ptr, WORD val) /* Store a 2-byte word in little-endian */ +#if !FF_FS_READONLY +static void st_word (BYTE* ptr, WORD val) /* Store a 2-byte word in little-endian */ { *ptr++ = (BYTE)val; val >>= 8; *ptr++ = (BYTE)val; } -static -void st_dword (BYTE* ptr, DWORD val) /* Store a 4-byte word in little-endian */ +static void st_dword (BYTE* ptr, DWORD val) /* Store a 4-byte word in little-endian */ { *ptr++ = (BYTE)val; val >>= 8; *ptr++ = (BYTE)val; val >>= 8; @@ -655,9 +619,8 @@ void st_dword (BYTE* ptr, DWORD val) /* Store a 4-byte word in little-endian */ *ptr++ = (BYTE)val; } -#if _FS_EXFAT -static -void st_qword (BYTE* ptr, QWORD val) /* Store an 8-byte word in little-endian */ +#if FF_FS_EXFAT +static void st_qword (BYTE* ptr, QWORD val) /* Store an 8-byte word in little-endian */ { *ptr++ = (BYTE)val; val >>= 8; *ptr++ = (BYTE)val; val >>= 8; @@ -669,7 +632,7 @@ void st_qword (BYTE* ptr, QWORD val) /* Store an 8-byte word in little-endian */ *ptr++ = (BYTE)val; } #endif -#endif /* !_FS_READONLY */ +#endif /* !FF_FS_READONLY */ @@ -678,27 +641,33 @@ void st_qword (BYTE* ptr, QWORD val) /* Store an 8-byte word in little-endian */ /*-----------------------------------------------------------------------*/ /* Copy memory to memory */ -static -void mem_cpy (void* dst, const void* src, UINT cnt) { +static void mem_cpy (void* dst, const void* src, UINT cnt) +{ BYTE *d = (BYTE*)dst; const BYTE *s = (const BYTE*)src; - if (cnt) { - do *d++ = *s++; while (--cnt); + if (cnt != 0) { + do { + *d++ = *s++; + } while (--cnt); } } + /* Fill memory block */ -static -void mem_set (void* dst, int val, UINT cnt) { +static void mem_set (void* dst, int val, UINT cnt) +{ BYTE *d = (BYTE*)dst; - do *d++ = (BYTE)val; while (--cnt); + do { + *d++ = (BYTE)val; + } while (--cnt); } + /* Compare memory block */ -static -int mem_cmp (const void* dst, const void* src, UINT cnt) { /* ZR:same, NZ:different */ +static int mem_cmp (const void* dst, const void* src, UINT cnt) /* ZR:same, NZ:different */ +{ const BYTE *d = (const BYTE *)dst, *s = (const BYTE *)src; int r = 0; @@ -709,32 +678,232 @@ int mem_cmp (const void* dst, const void* src, UINT cnt) { /* ZR:same, NZ:differ return r; } + /* Check if chr is contained in the string */ -static -int chk_chr (const char* str, int chr) { /* NZ:contained, ZR:not contained */ +static int chk_chr (const char* str, int chr) /* NZ:contained, ZR:not contained */ +{ while (*str && *str != chr) str++; return *str; } +/* Test if the character is DBC 1st byte */ +static int dbc_1st (BYTE c) +{ +#if FF_CODE_PAGE == 0 /* Variable code page */ + if (DbcTbl && c >= DbcTbl[0]) { + if (c <= DbcTbl[1]) return 1; /* 1st byte range 1 */ + if (c >= DbcTbl[2] && c <= DbcTbl[3]) return 1; /* 1st byte range 2 */ + } +#elif FF_CODE_PAGE >= 900 /* DBCS fixed code page */ + if (c >= DbcTbl[0]) { + if (c <= DbcTbl[1]) return 1; + if (c >= DbcTbl[2] && c <= DbcTbl[3]) return 1; + } +#else /* SBCS fixed code page */ + if (c != 0) return 0; /* Always false */ +#endif + return 0; +} -#if _FS_REENTRANT +/* Test if the character is DBC 2nd byte */ +static int dbc_2nd (BYTE c) +{ +#if FF_CODE_PAGE == 0 /* Variable code page */ + if (DbcTbl && c >= DbcTbl[4]) { + if (c <= DbcTbl[5]) return 1; /* 2nd byte range 1 */ + if (c >= DbcTbl[6] && c <= DbcTbl[7]) return 1; /* 2nd byte range 2 */ + if (c >= DbcTbl[8] && c <= DbcTbl[9]) return 1; /* 2nd byte range 3 */ + } +#elif FF_CODE_PAGE >= 900 /* DBCS fixed code page */ + if (c >= DbcTbl[4]) { + if (c <= DbcTbl[5]) return 1; + if (c >= DbcTbl[6] && c <= DbcTbl[7]) return 1; + if (c >= DbcTbl[8] && c <= DbcTbl[9]) return 1; + } +#else /* SBCS fixed code page */ + if (c != 0) return 0; /* Always false */ +#endif + return 0; +} + + +#if FF_USE_LFN + +/* Get a character from TCHAR string in defined API encodeing */ +static DWORD tchar2uni ( /* Returns character in UTF-16 encoding (>=0x10000 on double encoding unit, 0xFFFFFFFF on decode error) */ + const TCHAR** str /* Pointer to pointer to TCHAR string in configured encoding */ +) +{ + DWORD uc; + const TCHAR *p = *str; + +#if FF_LFN_UNICODE == 1 /* UTF-16 input */ + WCHAR wc; + + uc = *p++; /* Get a unit */ + if (IsSurrogate(uc)) { /* Surrogate? */ + wc = *p++; /* Get low surrogate */ + if (!IsSurrogateH(uc) || !IsSurrogateL(wc)) return 0xFFFFFFFF; /* Wrong surrogate? */ + uc = uc << 16 | wc; + } + +#elif FF_LFN_UNICODE == 2 /* UTF-8 input */ + BYTE b; + int nf; + + uc = (BYTE)*p++; /* Get a unit */ + if (uc & 0x80) { /* Multiple byte code? */ + if ((uc & 0xE0) == 0xC0) { /* 2-byte sequence? */ + uc &= 0x1F; nf = 1; + } else { + if ((uc & 0xF0) == 0xE0) { /* 3-byte sequence? */ + uc &= 0x0F; nf = 2; + } else { + if ((uc & 0xF8) == 0xF0) { /* 4-byte sequence? */ + uc &= 0x07; nf = 3; + } else { /* Wrong sequence */ + return 0xFFFFFFFF; + } + } + } + do { /* Get trailing bytes */ + b = (BYTE)*p++; + if ((b & 0xC0) != 0x80) return 0xFFFFFFFF; /* Wrong sequence? */ + uc = uc << 6 | (b & 0x3F); + } while (--nf != 0); + if (uc < 0x80 || IsSurrogate(uc) || uc >= 0x110000) return 0xFFFFFFFF; /* Wrong code? */ + if (uc >= 0x010000) uc = 0xD800DC00 | ((uc - 0x10000) << 6 & 0x3FF0000) | (uc & 0x3FF); /* Make a surrogate pair if needed */ + } + +#elif FF_LFN_UNICODE == 3 /* UTF-32 input */ + uc = (TCHAR)*p++; /* Get a unit */ + if (uc >= 0x110000) return 0xFFFFFFFF; /* Wrong code? */ + if (uc >= 0x010000) uc = 0xD800DC00 | ((uc - 0x10000) << 6 & 0x3FF0000) | (uc & 0x3FF); /* Make a surrogate pair if needed */ + +#else /* ANSI/OEM input */ + BYTE b; + WCHAR wc; + + wc = (BYTE)*p++; /* Get a byte */ + if (dbc_1st((BYTE)wc)) { /* Is it a DBC 1st byte? */ + b = (BYTE)*p++; /* Get 2nd byte */ + if (!dbc_2nd(b)) return 0xFFFFFFFF; /* Invalid code? */ + wc = (wc << 8) + b; /* Make a DBC */ + } + if (wc != 0) { + wc = ff_oem2uni(wc, CODEPAGE); /* ANSI/OEM ==> Unicode */ + if (wc == 0) return 0xFFFFFFFF; /* Invalid code? */ + } + uc = wc; + +#endif + *str = p; /* Next read pointer */ + return uc; +} + + +/* Output a TCHAR string in defined API encoding */ +static BYTE put_utf ( /* Returns number of encoding units written (0:buffer overflow or wrong encoding) */ + DWORD chr, /* UTF-16 encoded character (Double encoding unit char if >=0x10000) */ + TCHAR* buf, /* Output buffer */ + UINT szb /* Size of the buffer */ +) +{ +#if FF_LFN_UNICODE == 1 /* UTF-16 output */ + WCHAR hs, wc; + + hs = (WCHAR)(chr >> 16); + wc = (WCHAR)chr; + if (hs == 0) { /* Single encoding unit? */ + if (szb < 1 || IsSurrogate(wc)) return 0; /* Buffer overflow or wrong code? */ + *buf = wc; + return 1; + } + if (szb < 2 || !IsSurrogateH(hs) || !IsSurrogateL(wc)) return 0; /* Buffer overflow or wrong surrogate? */ + *buf++ = hs; + *buf++ = wc; + return 2; + +#elif FF_LFN_UNICODE == 2 /* UTF-8 output */ + DWORD hc; + + if (chr < 0x80) { /* Single byte code? */ + if (szb < 1) return 0; /* Buffer overflow? */ + *buf = (TCHAR)chr; + return 1; + } + if (chr < 0x800) { /* 2-byte sequence? */ + if (szb < 2) return 0; /* Buffer overflow? */ + *buf++ = (TCHAR)(0xC0 | (chr >> 6 & 0x1F)); + *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F)); + return 2; + } + if (chr < 0x10000) { /* 3-byte sequence? */ + if (szb < 3 || IsSurrogate(chr)) return 0; /* Buffer overflow or wrong code? */ + *buf++ = (TCHAR)(0xE0 | (chr >> 12 & 0x0F)); + *buf++ = (TCHAR)(0x80 | (chr >> 6 & 0x3F)); + *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F)); + return 3; + } + /* 4-byte sequence */ + if (szb < 4) return 0; /* Buffer overflow? */ + hc = ((chr & 0xFFFF0000) - 0xD8000000) >> 6; /* Get high 10 bits */ + chr = (chr & 0xFFFF) - 0xDC00; /* Get low 10 bits */ + if (hc >= 0x100000 || chr >= 0x400) return 0; /* Wrong surrogate? */ + chr = (hc | chr) + 0x10000; + *buf++ = (TCHAR)(0xF0 | (chr >> 18 & 0x07)); + *buf++ = (TCHAR)(0x80 | (chr >> 12 & 0x3F)); + *buf++ = (TCHAR)(0x80 | (chr >> 6 & 0x3F)); + *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F)); + return 4; + +#elif FF_LFN_UNICODE == 3 /* UTF-32 output */ + DWORD hc; + + if (szb < 1) return 0; /* Buffer overflow? */ + if (chr >= 0x10000) { /* Out of BMP? */ + hc = ((chr & 0xFFFF0000) - 0xD8000000) >> 6; /* Get high 10 bits */ + chr = (chr & 0xFFFF) - 0xDC00; /* Get low 10 bits */ + if (hc >= 0x100000 || chr >= 0x400) return 0; /* Wrong surrogate? */ + chr = (hc | chr) + 0x10000; + } + *buf++ = (TCHAR)chr; + return 1; + +#else /* ANSI/OEM output */ + WCHAR wc; + + wc = ff_uni2oem(chr, CODEPAGE); + if (wc >= 0x100) { /* Is this a DBC? */ + if (szb < 2) return 0; + *buf++ = (char)(wc >> 8); /* Store DBC 1st byte */ + *buf++ = (TCHAR)wc; /* Store DBC 2nd byte */ + return 2; + } + if (wc == 0 || szb < 1) return 0; /* Invalid char or buffer overflow? */ + *buf++ = (TCHAR)wc; /* Store the character */ + return 1; +#endif +} +#endif /* FF_USE_LFN */ + + +#if FF_FS_REENTRANT /*-----------------------------------------------------------------------*/ /* Request/Release grant to access the volume */ /*-----------------------------------------------------------------------*/ -static -int lock_fs ( - FATFS* fs /* File system object */ +static int lock_fs ( /* 1:Ok, 0:timeout */ + FATFS* fs /* Filesystem object */ ) { return ff_req_grant(fs->sobj); } -static -void unlock_fs ( - FATFS* fs, /* File system object */ +static void unlock_fs ( + FATFS* fs, /* Filesystem object */ FRESULT res /* Result code to be returned */ ) { @@ -747,50 +916,48 @@ void unlock_fs ( -#if _FS_LOCK != 0 +#if FF_FS_LOCK != 0 /*-----------------------------------------------------------------------*/ /* File lock control functions */ /*-----------------------------------------------------------------------*/ -static -FRESULT chk_lock ( /* Check if the file can be accessed */ +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) */ + int acc /* Desired access type (0:Read mode open, 1:Write mode open, 2:Delete or rename) */ ) { UINT i, be; - /* Search file semaphore table */ - for (i = be = 0; i < _FS_LOCK; i++) { + /* Search open object table for the object */ + be = 0; + for (i = 0; i < FF_FS_LOCK; i++) { if (Files[i].fs) { /* Existing entry */ - if (Files[i].fs == dp->obj.fs && /* Check if the object matched with an open object */ + if (Files[i].fs == dp->obj.fs && /* Check if the object matches with an open object */ Files[i].clu == dp->obj.sclust && Files[i].ofs == dp->dptr) 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? */ + if (i == FF_FS_LOCK) { /* The object has not been opened */ + return (!be && acc != 2) ? FR_TOO_MANY_OPEN_FILES : FR_OK; /* 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; + /* The object was opened. Reject any open against writing file and all write mode open */ + return (acc != 0 || Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK; } -static -int enq_lock (void) /* Check if an entry is available for a new object */ +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; + for (i = 0; i < FF_FS_LOCK && Files[i].fs; i++) ; + return (i == FF_FS_LOCK) ? 0 : 1; } -static -UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */ +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) */ ) @@ -798,31 +965,30 @@ UINT inc_lock ( /* Increment object open counter and returns its index (0:Intern UINT i; - for (i = 0; i < _FS_LOCK; i++) { /* Find the object */ + for (i = 0; i < FF_FS_LOCK; i++) { /* Find the object */ if (Files[i].fs == dp->obj.fs && Files[i].clu == dp->obj.sclust && Files[i].ofs == dp->dptr) 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) */ + if (i == FF_FS_LOCK) { /* Not opened. Register it as new. */ + for (i = 0; i < FF_FS_LOCK && Files[i].fs; i++) ; + if (i == FF_FS_LOCK) return 0; /* No free entry to register (int err) */ Files[i].fs = dp->obj.fs; Files[i].clu = dp->obj.sclust; Files[i].ofs = dp->dptr; Files[i].ctr = 0; } - if (acc && Files[i].ctr) return 0; /* Access violation (int err) */ + if (acc >= 1 && Files[i].ctr) return 0; /* Access violation (int err) */ Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */ - return i + 1; + return i + 1; /* Index number origin from 1 */ } -static -FRESULT dec_lock ( /* Decrement object open counter */ +static FRESULT dec_lock ( /* Decrement object open counter */ UINT i /* Semaphore index (1..) */ ) { @@ -830,7 +996,7 @@ FRESULT dec_lock ( /* Decrement object open counter */ FRESULT res; - if (--i < _FS_LOCK) { /* Shift index number origin from 0 */ + if (--i < FF_FS_LOCK) { /* Index number origin from 0 */ n = Files[i].ctr; if (n == 0x100) n = 0; /* If write mode open, delete the entry */ if (n > 0) n--; /* Decrement read mode open count */ @@ -844,48 +1010,40 @@ FRESULT dec_lock ( /* Decrement object open counter */ } -static -void clear_lock ( /* Clear lock entries of the volume */ +static void clear_lock ( /* Clear lock entries of the volume */ FATFS *fs ) { UINT i; - for (i = 0; i < _FS_LOCK; i++) { + for (i = 0; i < FF_FS_LOCK; i++) { if (Files[i].fs == fs) Files[i].fs = 0; } } -#endif /* _FS_LOCK != 0 */ +#endif /* FF_FS_LOCK != 0 */ /*-----------------------------------------------------------------------*/ -/* Move/Flush disk access window in the file system object */ +/* Move/Flush disk access window in the filesystem object */ /*-----------------------------------------------------------------------*/ -#if !_FS_READONLY -static -FRESULT sync_window ( /* Returns FR_OK or FR_DISK_ERROR */ - FATFS* fs /* File system object */ +#if !FF_FS_READONLY +static FRESULT sync_window ( /* Returns FR_OK or FR_DISK_ERR */ + FATFS* fs /* Filesystem 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); - } + if (fs->wflag) { /* Is the disk access window dirty */ + if (disk_write(fs->pdrv, fs->win, fs->winsect, 1) == RES_OK) { /* Write back the window */ + fs->wflag = 0; /* Clear window dirty flag */ + if (fs->winsect - fs->fatbase < fs->fsize) { /* Is it in the 1st FAT? */ + if (fs->n_fats == 2) disk_write(fs->pdrv, fs->win, fs->winsect + fs->fsize, 1); /* Reflect it to 2nd FAT if needed */ } + } else { + res = FR_DISK_ERR; } } return res; @@ -893,9 +1051,8 @@ FRESULT sync_window ( /* Returns FR_OK or FR_DISK_ERROR */ #endif -static -FRESULT move_window ( /* Returns FR_OK or FR_DISK_ERROR */ - FATFS* fs, /* File system object */ +static FRESULT move_window ( /* Returns FR_OK or FR_DISK_ERR */ + FATFS* fs, /* Filesystem object */ DWORD sector /* Sector number to make appearance in the fs->win[] */ ) { @@ -903,12 +1060,12 @@ FRESULT move_window ( /* Returns FR_OK or FR_DISK_ERROR */ if (sector != fs->winsect) { /* Window offset changed? */ -#if !_FS_READONLY +#if !FF_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 */ + if (disk_read(fs->pdrv, fs->win, sector, 1) != RES_OK) { + sector = 0xFFFFFFFF; /* Invalidate window if read data is not valid */ res = FR_DISK_ERR; } fs->winsect = sector; @@ -920,14 +1077,13 @@ FRESULT move_window ( /* Returns FR_OK or FR_DISK_ERROR */ -#if !_FS_READONLY +#if !FF_FS_READONLY /*-----------------------------------------------------------------------*/ -/* Synchronize file system and strage device */ +/* Synchronize filesystem and data on the storage */ /*-----------------------------------------------------------------------*/ -static -FRESULT sync_fs ( /* FR_OK:succeeded, !=0:error */ - FATFS* fs /* File system object */ +static FRESULT sync_fs ( /* Returns FR_OK or FR_DISK_ERR */ + FATFS* fs /* Filesystem object */ ) { FRESULT res; @@ -935,8 +1091,7 @@ FRESULT sync_fs ( /* FR_OK:succeeded, !=0:error */ res = sync_window(fs); if (res == FR_OK) { - /* Update FSInfo sector if needed */ - if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) { + if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) { /* FAT32: Update FSInfo sector if needed */ /* Create FSInfo structure */ mem_set(fs->win, 0, SS(fs)); st_word(fs->win + BS_55AA, 0xAA55); @@ -946,11 +1101,11 @@ FRESULT sync_fs ( /* FR_OK:succeeded, !=0:error */ st_dword(fs->win + FSI_Nxt_Free, fs->last_clst); /* Write it into the FSInfo sector */ fs->winsect = fs->volbase + 1; - disk_write(fs->drv, fs->win, fs->winsect, 1); + disk_write(fs->pdrv, 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; + /* Make sure that no pending write process in the lower layer */ + if (disk_ioctl(fs->pdrv, CTRL_SYNC, 0) != RES_OK) res = FR_DISK_ERR; } return res; @@ -961,18 +1116,17 @@ FRESULT sync_fs ( /* FR_OK:succeeded, !=0:error */ /*-----------------------------------------------------------------------*/ -/* Get sector# from cluster# */ +/* Get physical sector number from cluster number */ /*-----------------------------------------------------------------------*/ -static -DWORD clust2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */ - FATFS* fs, /* File system object */ +static DWORD clst2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */ + FATFS* fs, /* Filesystem 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; + clst -= 2; /* Cluster number is origin from 2 */ + if (clst >= fs->n_fatent - 2) return 0; /* Is it invalid cluster number? */ + return fs->database + fs->csize * clst; /* Start sector number of the cluster */ } @@ -982,10 +1136,9 @@ DWORD clust2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */ /* FAT access - Read value of a FAT entry */ /*-----------------------------------------------------------------------*/ -static -DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x7FFFFFFF:Cluster status */ - _FDID* obj, /* Corresponding object */ - DWORD clst /* Cluster number to get the value */ +static DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x7FFFFFFF:Cluster status */ + FFOBJID* obj, /* Corresponding object */ + DWORD clst /* Cluster number to get the value */ ) { UINT wc, bc; @@ -1003,44 +1156,46 @@ DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x7FFFFFFF:Cluste 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)]; + wc = fs->win[bc++ % SS(fs)]; /* Get 1st byte of the entry */ 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); + wc |= fs->win[bc % SS(fs)] << 8; /* Merge 2nd byte of the entry */ + val = (clst & 1) ? (wc >> 4) : (wc & 0xFFF); /* Adjust bit position */ break; case FS_FAT16 : if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break; - val = ld_word(fs->win + clst * 2 % SS(fs)); + val = ld_word(fs->win + clst * 2 % SS(fs)); /* Simple WORD array */ break; case FS_FAT32 : if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break; - val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x0FFFFFFF; + val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x0FFFFFFF; /* Simple DWORD array but mask out upper 4 bits */ break; -#if _FS_EXFAT +#if FF_FS_EXFAT case FS_EXFAT : - if (obj->objsize) { + if ((obj->objsize != 0 && obj->sclust != 0) || obj->stat == 0) { /* Object except root dir must have valid data length */ DWORD cofs = clst - obj->sclust; /* Offset from start cluster */ DWORD clen = (DWORD)((obj->objsize - 1) / SS(fs)) / fs->csize; /* Number of clusters - 1 */ - if (obj->stat == 2) { /* Is there no valid chain on the FAT? */ - if (cofs <= clen) { - val = (cofs == clen) ? 0x7FFFFFFF : clst + 1; /* Generate the value */ - break; - } + if (obj->stat == 2 && cofs <= clen) { /* Is it a contiguous chain? */ + val = (cofs == clen) ? 0x7FFFFFFF : clst + 1; /* No data on the FAT, generate the value */ + break; } - if (obj->stat == 3 && cofs < obj->n_cont) { /* Is it in the contiguous part? */ + if (obj->stat == 3 && cofs < obj->n_cont) { /* Is it in the 1st fragment? */ val = clst + 1; /* Generate the value */ break; } if (obj->stat != 2) { /* Get value from FAT if FAT chain is valid */ - if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break; - val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x7FFFFFFF; + if (obj->n_frag != 0) { /* Is it on the growing edge? */ + val = 0x7FFFFFFF; /* Generate EOC */ + } else { + if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break; + val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x7FFFFFFF; + } break; } } - /* go next */ + /* go to default */ #endif default: val = 1; /* Internal error */ @@ -1053,14 +1208,13 @@ DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x7FFFFFFF:Cluste -#if !_FS_READONLY +#if !FF_FS_READONLY /*-----------------------------------------------------------------------*/ /* FAT access - Change value of a FAT entry */ /*-----------------------------------------------------------------------*/ -static -FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */ - FATFS* fs, /* Corresponding file system object */ +static FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */ + FATFS* fs, /* Corresponding filesystem object */ DWORD clst, /* FAT index number (cluster number) to be changed */ DWORD val /* New value to be set to the entry */ ) @@ -1072,34 +1226,34 @@ FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */ if (clst >= 2 && clst < fs->n_fatent) { /* Check if in valid range */ switch (fs->fs_type) { - case FS_FAT12 : /* Bitfield items */ - bc = (UINT)clst; bc += bc / 2; + case FS_FAT12 : + bc = (UINT)clst; bc += bc / 2; /* bc: byte offset of the entry */ 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; + *p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val; /* Put 1st byte */ 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)); + *p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F)); /* Put 2nd byte */ fs->wflag = 1; break; - case FS_FAT16 : /* WORD aligned items */ + case FS_FAT16 : res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))); if (res != FR_OK) break; - st_word(fs->win + clst * 2 % SS(fs), (WORD)val); + st_word(fs->win + clst * 2 % SS(fs), (WORD)val); /* Simple WORD array */ fs->wflag = 1; break; - case FS_FAT32 : /* DWORD aligned items */ -#if _FS_EXFAT + case FS_FAT32 : +#if FF_FS_EXFAT case FS_EXFAT : #endif res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))); if (res != FR_OK) break; - if (!_FS_EXFAT || fs->fs_type != FS_EXFAT) { + if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) { val = (val & 0x0FFFFFFF) | (ld_dword(fs->win + clst * 4 % SS(fs)) & 0xF0000000); } st_dword(fs->win + clst * 4 % SS(fs), val); @@ -1110,23 +1264,22 @@ FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */ return res; } -#endif /* !_FS_READONLY */ +#endif /* !FF_FS_READONLY */ -#if _FS_EXFAT && !_FS_READONLY +#if FF_FS_EXFAT && !FF_FS_READONLY /*-----------------------------------------------------------------------*/ /* exFAT: Accessing FAT and Allocation Bitmap */ /*-----------------------------------------------------------------------*/ -/*---------------------------------------------*/ -/* exFAT: Find a contiguous free cluster block */ -/*---------------------------------------------*/ +/*--------------------------------------*/ +/* Find a contiguous free cluster block */ +/*--------------------------------------*/ -static -DWORD find_bitmap ( /* 0:No free cluster, 2..:Free cluster found, 0xFFFFFFFF:Disk error */ - FATFS* fs, /* File system object */ +static DWORD find_bitmap ( /* 0:Not found, 2..:Cluster block found, 0xFFFFFFFF:Disk error */ + FATFS* fs, /* Filesystem object */ DWORD clst, /* Cluster number to scan from */ DWORD ncl /* Number of contiguous clusters to find (1..) */ ) @@ -1146,28 +1299,27 @@ DWORD find_bitmap ( /* 0:No free cluster, 2..:Free cluster found, 0xFFFFFFFF:Dis do { bv = fs->win[i] & bm; bm <<= 1; /* Get bit value */ if (++val >= fs->n_fatent - 2) { /* Next cluster (with wrap-around) */ - val = 0; bm = 0; i = 4096; + val = 0; bm = 0; i = SS(fs); } - if (!bv) { /* Is it a free cluster? */ - if (++ctr == ncl) return scl + 2; /* Check run length */ + if (bv == 0) { /* Is it a free cluster? */ + if (++ctr == ncl) return scl + 2; /* Check if run length is sufficient for required */ } else { - scl = val; ctr = 0; /* Encountered a live cluster, restart to scan */ + scl = val; ctr = 0; /* Encountered a cluster in-use, restart to scan */ } if (val == clst) return 0; /* All cluster scanned? */ - } while (bm); + } while (bm != 0); bm = 1; } while (++i < SS(fs)); } } -/*------------------------------------*/ -/* exFAT: Set/Clear a block of bitmap */ -/*------------------------------------*/ +/*----------------------------------------*/ +/* Set/Clear a block of allocation bitmap */ +/*----------------------------------------*/ -static -FRESULT change_bitmap ( - FATFS* fs, /* File system object */ +static FRESULT change_bitmap ( + FATFS* fs, /* Filesystem object */ DWORD clst, /* Cluster number to change from */ DWORD ncl, /* Number of clusters to be changed */ int bv /* bit value to be set (0 or 1) */ @@ -1199,18 +1351,18 @@ FRESULT change_bitmap ( /*---------------------------------------------*/ -/* Complement contiguous part of the FAT chain */ +/* Fill the first fragment of the FAT chain */ /*---------------------------------------------*/ -static -FRESULT fill_fat_chain ( - _FDID* obj /* Pointer to the corresponding object */ +static FRESULT fill_first_frag ( + FFOBJID* obj /* Pointer to the corresponding object */ ) { FRESULT res; DWORD cl, n; - if (obj->stat == 3) { /* Has the object been changed 'fragmented'? */ + + if (obj->stat == 3) { /* Has the object been changed 'fragmented' in this session? */ for (cl = obj->sclust, n = obj->n_cont; n; cl++, n--) { /* Create cluster chain on the FAT */ res = put_fat(obj->fs, cl, cl + 1); if (res != FR_OK) return res; @@ -1220,35 +1372,57 @@ FRESULT fill_fat_chain ( return FR_OK; } -#endif /* _FS_EXFAT && !_FS_READONLY */ +/*---------------------------------------------*/ +/* Fill the last fragment of the FAT chain */ +/*---------------------------------------------*/ + +static FRESULT fill_last_frag ( + FFOBJID* obj, /* Pointer to the corresponding object */ + DWORD lcl, /* Last cluster of the fragment */ + DWORD term /* Value to set the last FAT entry */ +) +{ + FRESULT res; + + + while (obj->n_frag > 0) { /* Create the chain of last fragment */ + res = put_fat(obj->fs, lcl - obj->n_frag + 1, (obj->n_frag > 1) ? lcl - obj->n_frag + 2 : term); + if (res != FR_OK) return res; + obj->n_frag--; + } + return FR_OK; +} +#endif /* FF_FS_EXFAT && !FF_FS_READONLY */ -#if !_FS_READONLY + + +#if !FF_FS_READONLY /*-----------------------------------------------------------------------*/ /* FAT handling - Remove a cluster chain */ /*-----------------------------------------------------------------------*/ -static -FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */ - _FDID* obj, /* Corresponding object */ + +static FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */ + FFOBJID* obj, /* Corresponding object */ DWORD clst, /* Cluster to remove a chain from */ - DWORD pclst /* Previous cluster of clst (0:an entire chain) */ + DWORD pclst /* Previous cluster of clst (0:entire chain) */ ) { FRESULT res = FR_OK; DWORD nxt; FATFS *fs = obj->fs; -#if _FS_EXFAT || _USE_TRIM +#if FF_FS_EXFAT || FF_USE_TRIM DWORD scl = clst, ecl = clst; #endif -#if _USE_TRIM +#if FF_USE_TRIM DWORD rt[2]; #endif if (clst < 2 || clst >= fs->n_fatent) return FR_INT_ERR; /* Check if in valid range */ /* Mark the previous cluster 'EOC' on the FAT if it exists */ - if (pclst && (!_FS_EXFAT || fs->fs_type != FS_EXFAT || obj->stat != 2)) { + if (pclst != 0 && (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT || obj->stat != 2)) { res = put_fat(fs, pclst, 0xFFFFFFFF); if (res != FR_OK) return res; } @@ -1259,7 +1433,7 @@ FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */ if (nxt == 0) break; /* Empty cluster? */ if (nxt == 1) return FR_INT_ERR; /* Internal error? */ if (nxt == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error? */ - if (!_FS_EXFAT || fs->fs_type != FS_EXFAT) { + if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) { res = put_fat(fs, clst, 0); /* Mark the cluster 'free' on the FAT */ if (res != FR_OK) return res; } @@ -1267,20 +1441,20 @@ FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */ fs->free_clst++; fs->fsi_flag |= 1; } -#if _FS_EXFAT || _USE_TRIM +#if FF_FS_EXFAT || FF_USE_TRIM if (ecl + 1 == nxt) { /* Is next cluster contiguous? */ ecl = nxt; - } else { /* End of contiguous cluster block */ -#if _FS_EXFAT + } else { /* End of contiguous cluster block */ +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { res = change_bitmap(fs, scl, ecl - scl + 1, 0); /* Mark the cluster block 'free' on the bitmap */ if (res != FR_OK) return res; } #endif -#if _USE_TRIM - rt[0] = clust2sect(fs, scl); /* Start sector */ - rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */ - disk_ioctl(fs->drv, CTRL_TRIM, rt); /* Inform device the block can be erased */ +#if FF_USE_TRIM + rt[0] = clst2sect(fs, scl); /* Start of data area freed */ + rt[1] = clst2sect(fs, ecl) + fs->csize - 1; /* End of data area freed */ + disk_ioctl(fs->pdrv, CTRL_TRIM, rt); /* Inform device the data in the block is no longer needed */ #endif scl = ecl = nxt; } @@ -1288,13 +1462,28 @@ FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */ clst = nxt; /* Next cluster */ } while (clst < fs->n_fatent); /* Repeat while not the last link */ -#if _FS_EXFAT +#if FF_FS_EXFAT + /* Some post processes for chain status */ if (fs->fs_type == FS_EXFAT) { - if (pclst == 0) { /* Does object have no chain? */ - obj->stat = 0; /* Change the object status 'initial' */ + if (pclst == 0) { /* Has the entire chain been removed? */ + obj->stat = 0; /* Change the chain status 'initial' */ } else { - if (obj->stat == 3 && pclst >= obj->sclust && pclst <= obj->sclust + obj->n_cont) { /* Did the chain got contiguous? */ - obj->stat = 2; /* Change the object status 'contiguous' */ + if (obj->stat == 0) { /* Is it a fragmented chain from the beginning of this session? */ + clst = obj->sclust; /* Follow the chain to check if it gets contiguous */ + while (clst != pclst) { + nxt = get_fat(obj, clst); + if (nxt < 2) return FR_INT_ERR; + if (nxt == 0xFFFFFFFF) return FR_DISK_ERR; + if (nxt != clst + 1) break; /* Not contiguous? */ + clst++; + } + if (clst == pclst) { /* Has the chain got contiguous again? */ + obj->stat = 2; /* Change the chain status 'contiguous' */ + } + } else { + if (obj->stat == 3 && pclst >= obj->sclust && pclst <= obj->sclust + obj->n_cont) { /* Was the chain fragmented in this session and got contiguous again? */ + obj->stat = 2; /* Change the chain status 'contiguous' */ + } } } } @@ -1308,9 +1497,9 @@ FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */ /*-----------------------------------------------------------------------*/ /* FAT handling - Stretch a chain or Create a new chain */ /*-----------------------------------------------------------------------*/ -static -DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */ - _FDID* obj, /* Corresponding object */ + +static DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */ + FFOBJID* obj, /* Corresponding object */ DWORD clst /* Cluster# to stretch, 0:Create a new chain */ ) { @@ -1320,18 +1509,19 @@ DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk err if (clst == 0) { /* Create a new chain */ - scl = fs->last_clst; /* Get suggested cluster to start from */ + scl = fs->last_clst; /* Suggested cluster to start to find */ if (scl == 0 || scl >= fs->n_fatent) scl = 1; } - else { /* Stretch current chain */ + else { /* Stretch a chain */ cs = get_fat(obj, clst); /* Check the cluster status */ - if (cs < 2) return 1; /* Invalid value */ - if (cs == 0xFFFFFFFF) return cs; /* A disk error occurred */ + if (cs < 2) return 1; /* Test for insanity */ + if (cs == 0xFFFFFFFF) return cs; /* Test for disk error */ if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */ - scl = clst; + scl = clst; /* Cluster to start to find */ } + if (fs->free_clst == 0) return 0; /* No free cluster */ -#if _FS_EXFAT +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ ncl = find_bitmap(fs, scl, 1); /* Find a free cluster */ if (ncl == 0 || ncl == 0xFFFFFFFF) return ncl; /* No free cluster or hard error? */ @@ -1339,62 +1529,79 @@ DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk err if (res == FR_INT_ERR) return 1; if (res == FR_DISK_ERR) return 0xFFFFFFFF; if (clst == 0) { /* Is it a new chain? */ - obj->stat = 2; /* Set status 'contiguous chain' */ - } else { /* This is a stretched chain */ + obj->stat = 2; /* Set status 'contiguous' */ + } else { /* It is a stretched chain */ if (obj->stat == 2 && ncl != scl + 1) { /* Is the chain got fragmented? */ obj->n_cont = scl - obj->sclust; /* Set size of the contiguous part */ obj->stat = 3; /* Change status 'just fragmented' */ } } + if (obj->stat != 2) { /* Is the file non-contiguous? */ + if (ncl == clst + 1) { /* Is the cluster next to previous one? */ + obj->n_frag = obj->n_frag ? obj->n_frag + 1 : 2; /* Increment size of last framgent */ + } else { /* New fragment */ + if (obj->n_frag == 0) obj->n_frag = 1; + res = fill_last_frag(obj, clst, ncl); /* Fill last fragment on the FAT and link it to new one */ + if (res == FR_OK) obj->n_frag = 1; + } + } } else #endif - { /* On the FAT12/16/32 volume */ - 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 */ + { /* On the FAT/FAT32 volume */ + ncl = 0; + if (scl == clst) { /* Stretching an existing chain? */ + ncl = scl + 1; /* Test if next cluster is free */ + if (ncl >= fs->n_fatent) ncl = 2; + cs = get_fat(obj, ncl); /* Get next cluster status */ + if (cs == 1 || cs == 0xFFFFFFFF) return cs; /* Test for error */ + if (cs != 0) { /* Not free? */ + cs = fs->last_clst; /* Start at suggested cluster if it is valid */ + if (cs >= 2 && cs < fs->n_fatent) scl = cs; + ncl = 0; } - cs = get_fat(obj, ncl); /* Get the cluster status */ - if (cs == 0) break; /* Found a free cluster */ - if (cs == 1 || cs == 0xFFFFFFFF) return cs; /* An error occurred */ - if (ncl == scl) return 0; /* No free cluster */ } - } - - if (_FS_EXFAT && fs->fs_type == FS_EXFAT && obj->stat == 2) { /* Is it a contiguous chain? */ - res = FR_OK; /* FAT does not need to be written */ - } else { - res = put_fat(fs, ncl, 0xFFFFFFFF); /* Mark the new cluster 'EOC' */ - if (res == FR_OK && clst) { - res = put_fat(fs, clst, ncl); /* Link it from the previous one if needed */ + if (ncl == 0) { /* The new cluster cannot be contiguous and find another fragment */ + 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 found? */ + } + cs = get_fat(obj, ncl); /* Get the cluster status */ + if (cs == 0) break; /* Found a free cluster? */ + if (cs == 1 || cs == 0xFFFFFFFF) return cs; /* Test for error */ + if (ncl == scl) return 0; /* No free cluster found? */ + } + } + res = put_fat(fs, ncl, 0xFFFFFFFF); /* Mark the new cluster 'EOC' */ + if (res == FR_OK && clst != 0) { + res = put_fat(fs, clst, ncl); /* Link it from the previous one if needed */ } } if (res == FR_OK) { /* Update FSINFO if function succeeded. */ fs->last_clst = ncl; - if (fs->free_clst < fs->n_fatent - 2) fs->free_clst--; + if (fs->free_clst <= fs->n_fatent - 2) fs->free_clst--; fs->fsi_flag |= 1; } else { - ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1; /* Failed. Create error status */ + ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1; /* Failed. Generate error status */ } return ncl; /* Return new cluster number or error status */ } -#endif /* !_FS_READONLY */ +#endif /* !FF_FS_READONLY */ -#if _USE_FASTSEEK +#if FF_USE_FASTSEEK /*-----------------------------------------------------------------------*/ /* FAT handling - Convert offset into cluster with link map table */ /*-----------------------------------------------------------------------*/ -static -DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */ +static DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */ FIL* fp, /* Pointer to the file object */ FSIZE_t ofs /* File offset to be converted to cluster# */ ) @@ -1414,7 +1621,47 @@ DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */ return cl + *tbl; /* Return the cluster number */ } -#endif /* _USE_FASTSEEK */ +#endif /* FF_USE_FASTSEEK */ + + + + +/*-----------------------------------------------------------------------*/ +/* Directory handling - Fill a cluster with zeros */ +/*-----------------------------------------------------------------------*/ + +#if !FF_FS_READONLY +static FRESULT dir_clear ( /* Returns FR_OK or FR_DISK_ERR */ + FATFS *fs, /* Filesystem object */ + DWORD clst /* Directory table to clear */ +) +{ + DWORD sect; + UINT n, szb; + BYTE *ibuf; + + + if (sync_window(fs) != FR_OK) return FR_DISK_ERR; /* Flush disk access window */ + sect = clst2sect(fs, clst); /* Top of the cluster */ + fs->winsect = sect; /* Set window to top of the cluster */ + mem_set(fs->win, 0, SS(fs)); /* Clear window buffer */ +#if FF_USE_LFN == 3 /* Quick table clear by using multi-secter write */ + /* Allocate a temporary buffer */ + for (szb = ((DWORD)fs->csize * SS(fs) >= MAX_MALLOC) ? MAX_MALLOC : fs->csize * SS(fs), ibuf = 0; szb > SS(fs) && (ibuf = ff_memalloc(szb)) == 0; szb /= 2) ; + if (szb > SS(fs)) { /* Buffer allocated? */ + mem_set(ibuf, 0, szb); + szb /= SS(fs); /* Bytes -> Sectors */ + for (n = 0; n < fs->csize && disk_write(fs->pdrv, ibuf, sect + n, szb) == RES_OK; n += szb) ; /* Fill the cluster with 0 */ + ff_memfree(ibuf); + } else +#endif + { + ibuf = fs->win; szb = 1; /* Use window buffer (many single-sector writes may take a time) */ + for (n = 0; n < fs->csize && disk_write(fs->pdrv, ibuf, sect + n, szb) == RES_OK; n += szb) ; /* Fill the cluster with 0 */ + } + return (n == fs->csize) ? FR_OK : FR_DISK_ERR; +} +#endif /* !FF_FS_READONLY */ @@ -1423,8 +1670,7 @@ DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */ /* Directory handling - Set directory index */ /*-----------------------------------------------------------------------*/ -static -FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */ +static FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */ DIR* dp, /* Pointer to directory object */ DWORD ofs /* Offset of directory table */ ) @@ -1433,21 +1679,21 @@ FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */ FATFS *fs = dp->obj.fs; - if (ofs >= (DWORD)((_FS_EXFAT && fs->fs_type == FS_EXFAT) ? MAX_DIR_EX : MAX_DIR) || ofs % SZDIRE) { /* Check range of offset and alignment */ + if (ofs >= (DWORD)((FF_FS_EXFAT && fs->fs_type == FS_EXFAT) ? MAX_DIR_EX : MAX_DIR) || ofs % SZDIRE) { /* Check range of offset and alignment */ return FR_INT_ERR; } dp->dptr = ofs; /* Set current offset */ clst = dp->obj.sclust; /* Table start cluster (0:root) */ if (clst == 0 && fs->fs_type >= FS_FAT32) { /* Replace cluster# 0 with root cluster# */ clst = fs->dirbase; - if (_FS_EXFAT) dp->obj.stat = 0; /* exFAT: Root dir has an FAT chain */ + if (FF_FS_EXFAT) dp->obj.stat = 0; /* exFAT: Root dir has an FAT chain */ } - if (clst == 0) { /* Static table (root-directory in FAT12/16) */ - if (ofs / SZDIRE >= fs->n_rootdir) return FR_INT_ERR; /* Is index out of range? */ + if (clst == 0) { /* Static table (root-directory on the FAT volume) */ + if (ofs / SZDIRE >= fs->n_rootdir) return FR_INT_ERR; /* Is index out of range? */ dp->sect = fs->dirbase; - } else { /* Dynamic table (sub-directory or root-directory in FAT32+) */ + } else { /* Dynamic table (sub-directory or root-directory on the FAT32/exFAT volume) */ csz = (DWORD)fs->csize * SS(fs); /* Bytes per cluster */ while (ofs >= csz) { /* Follow cluster chain */ clst = get_fat(&dp->obj, clst); /* Get next cluster */ @@ -1455,10 +1701,10 @@ FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */ if (clst < 2 || clst >= fs->n_fatent) return FR_INT_ERR; /* Reached to end of table or internal error */ ofs -= csz; } - dp->sect = clust2sect(fs, clst); + dp->sect = clst2sect(fs, clst); } dp->clust = clst; /* Current cluster# */ - if (!dp->sect) return FR_INT_ERR; + if (dp->sect == 0) return FR_INT_ERR; dp->sect += ofs / SS(fs); /* Sector# of the directory entry */ dp->dir = fs->win + (ofs % SS(fs)); /* Pointer to the entry in the win[] */ @@ -1472,36 +1718,33 @@ FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */ /* 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 */ +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 ofs, clst; FATFS *fs = dp->obj.fs; -#if !_FS_READONLY - UINT n; -#endif + ofs = dp->dptr + SZDIRE; /* Next entry */ - if (!dp->sect || ofs >= (DWORD)((_FS_EXFAT && fs->fs_type == FS_EXFAT) ? MAX_DIR_EX : MAX_DIR)) return FR_NO_FILE; /* Report EOT when offset has reached max value */ + if (dp->sect == 0 || ofs >= (DWORD)((FF_FS_EXFAT && fs->fs_type == FS_EXFAT) ? MAX_DIR_EX : MAX_DIR)) return FR_NO_FILE; /* Report EOT when offset has reached max value */ if (ofs % SS(fs) == 0) { /* Sector changed? */ dp->sect++; /* Next sector */ - if (!dp->clust) { /* Static table */ + if (dp->clust == 0) { /* Static table */ if (ofs / SZDIRE >= fs->n_rootdir) { /* Report EOT if it reached end of static table */ dp->sect = 0; return FR_NO_FILE; } } else { /* Dynamic table */ - if ((ofs / SS(fs) & (fs->csize - 1)) == 0) { /* Cluster changed? */ - clst = get_fat(&dp->obj, dp->clust); /* Get next cluster */ - if (clst <= 1) return FR_INT_ERR; /* Internal error */ - if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */ - if (clst >= fs->n_fatent) { /* Reached end of dynamic table */ -#if !_FS_READONLY + if ((ofs / SS(fs) & (fs->csize - 1)) == 0) { /* Cluster changed? */ + clst = get_fat(&dp->obj, dp->clust); /* Get next cluster */ + if (clst <= 1) return FR_INT_ERR; /* Internal error */ + if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */ + if (clst >= fs->n_fatent) { /* It reached end of dynamic table */ +#if !FF_FS_READONLY if (!stretch) { /* If no stretch, report EOT */ dp->sect = 0; return FR_NO_FILE; } @@ -1509,22 +1752,15 @@ FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Cou if (clst == 0) return FR_DENIED; /* No free cluster */ if (clst == 1) return FR_INT_ERR; /* Internal error */ if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */ - /* Clean-up the stretched table */ - if (_FS_EXFAT) dp->obj.stat |= 4; /* The directory needs to be updated */ - if (sync_window(fs) != FR_OK) return FR_DISK_ERR; /* Flush disk access window */ - mem_set(fs->win, 0, SS(fs)); /* Clear window buffer */ - for (n = 0, fs->winsect = clust2sect(fs, clst); n < fs->csize; n++, fs->winsect++) { /* Fill the new cluster with 0 */ - fs->wflag = 1; - if (sync_window(fs) != FR_OK) return FR_DISK_ERR; - } - fs->winsect -= n; /* Restore window offset */ + if (dir_clear(fs, clst) != FR_OK) return FR_DISK_ERR; /* Clean up the stretched table */ + if (FF_FS_EXFAT) dp->obj.stat |= 4; /* exFAT: The directory has been stretched */ #else - if (!stretch) dp->sect = 0; /* If no stretch, report EOT (this is to suppress warning) */ + if (!stretch) dp->sect = 0; /* (this line is to suppress compiler warning) */ dp->sect = 0; return FR_NO_FILE; /* Report EOT */ #endif } dp->clust = clst; /* Initialize data for new cluster */ - dp->sect = clust2sect(fs, clst); + dp->sect = clst2sect(fs, clst); } } } @@ -1537,15 +1773,14 @@ FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Cou -#if !_FS_READONLY +#if !FF_FS_READONLY /*-----------------------------------------------------------------------*/ /* Directory handling - Reserve a block of directory entries */ /*-----------------------------------------------------------------------*/ -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 */ +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 */ ) { FRESULT res; @@ -1559,7 +1794,7 @@ FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */ do { res = move_window(fs, dp->sect); if (res != FR_OK) break; -#if _FS_EXFAT +#if FF_FS_EXFAT if ((fs->fs_type == FS_EXFAT) ? (int)((dp->dir[XDIR_Type] & 0x80) == 0) : (int)(dp->dir[DIR_Name] == DDEM || dp->dir[DIR_Name] == 0)) { #else if (dp->dir[DIR_Name] == DDEM || dp->dir[DIR_Name] == 0) { @@ -1576,7 +1811,7 @@ FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */ return res; } -#endif /* !_FS_READONLY */ +#endif /* !FF_FS_READONLY */ @@ -1585,10 +1820,9 @@ FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */ /* FAT: 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 key entry */ +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 key entry */ ) { DWORD cl; @@ -1602,9 +1836,8 @@ DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */ } -#if !_FS_READONLY -static -void st_clust ( +#if !FF_FS_READONLY +static void st_clust ( FATFS* fs, /* Pointer to the fs object */ BYTE* dir, /* Pointer to the key entry */ DWORD cl /* Value to be set */ @@ -1619,19 +1852,12 @@ void st_clust ( -#if _USE_LFN != 0 -/*------------------------------------------------------------------------*/ -/* FAT-LFN: LFN handling */ -/*------------------------------------------------------------------------*/ -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 */ - - +#if FF_USE_LFN /*--------------------------------------------------------*/ /* FAT-LFN: Compare a part of file name with an LFN entry */ /*--------------------------------------------------------*/ -static -int cmp_lfn ( /* 1:matched, 0:not matched */ + +static int cmp_lfn ( /* 1:matched, 0:not matched */ const WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */ BYTE* dir /* Pointer to the directory entry containing the part of LFN */ ) @@ -1646,8 +1872,8 @@ int cmp_lfn ( /* 1:matched, 0:not matched */ 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 */ + if (wc != 0) { + if (i >= FF_MAX_LFN || ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) { /* Compare it */ return 0; /* Not matched */ } wc = uc; @@ -1662,12 +1888,12 @@ int cmp_lfn ( /* 1:matched, 0:not matched */ } -#if _FS_MINIMIZE <= 1 || _FS_RPATH >= 2 || _USE_LABEL || _FS_EXFAT +#if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 || FF_USE_LABEL || FF_FS_EXFAT /*-----------------------------------------------------*/ /* FAT-LFN: Pick a part of file name from an LFN entry */ /*-----------------------------------------------------*/ -static -int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */ + +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 */ ) @@ -1676,14 +1902,14 @@ int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */ WCHAR wc, uc; - if (ld_word(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */ + if (ld_word(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO is 0 */ - i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */ + i = ((dir[LDIR_Ord] & ~LLEF) - 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? */ + if (wc != 0) { + if (i >= FF_MAX_LFN) return 0; /* Buffer overflow? */ lfnbuf[i++] = wc = uc; /* Store it */ } else { if (uc != 0xFFFF) return 0; /* Check filler */ @@ -1691,7 +1917,7 @@ int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */ } if (dir[LDIR_Ord] & LLEF) { /* Put terminator if it is the last LFN part */ - if (i >= _MAX_LFN) return 0; /* Buffer overflow? */ + if (i >= FF_MAX_LFN) return 0; /* Buffer overflow? */ lfnbuf[i] = 0; } @@ -1700,12 +1926,12 @@ int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */ #endif -#if !_FS_READONLY +#if !FF_FS_READONLY /*-----------------------------------------*/ /* FAT-LFN: Create an entry of LFN entries */ /*-----------------------------------------*/ -static -void put_lfn ( + +static void put_lfn ( const WCHAR* lfn, /* Pointer to the LFN */ BYTE* dir, /* Pointer to the LFN entry to be created */ BYTE ord, /* LFN order (1-20) */ @@ -1732,18 +1958,17 @@ void put_lfn ( dir[LDIR_Ord] = ord; /* Set the LFN order */ } -#endif /* !_FS_READONLY */ -#endif /* _USE_LFN != 0 */ +#endif /* !FF_FS_READONLY */ +#endif /* FF_USE_LFN */ -#if _USE_LFN != 0 && !_FS_READONLY +#if FF_USE_LFN && !FF_FS_READONLY /*-----------------------------------------------------------------------*/ /* FAT-LFN: Create a Numbered SFN */ /*-----------------------------------------------------------------------*/ -static -void gen_numname ( +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 */ @@ -1760,7 +1985,7 @@ void gen_numname ( if (seq > 5) { /* In case of many collisions, generate a hash number instead of sequential number */ sr = seq; - while (*lfn) { /* Create a CRC */ + while (*lfn) { /* Create a CRC as hash value */ wc = *lfn++; for (i = 0; i < 16; i++) { sr = (sr << 1) + (wc & 1); @@ -1781,9 +2006,9 @@ void gen_numname ( } while (seq); ns[i] = '~'; - /* Append the number */ + /* Append the number to the SFN body */ for (j = 0; j < i && dst[j] != ' '; j++) { - if (IsDBCS1(dst[j])) { + if (dbc_1st(dst[j])) { if (j == i - 1) break; j++; } @@ -1792,38 +2017,38 @@ void gen_numname ( dst[j++] = (i < 8) ? ns[i++] : ' '; } while (j < 8); } -#endif /* _USE_LFN != 0 && !_FS_READONLY */ +#endif /* FF_USE_LFN && !FF_FS_READONLY */ -#if _USE_LFN != 0 +#if FF_USE_LFN /*-----------------------------------------------------------------------*/ /* FAT-LFN: Calculate checksum of an SFN entry */ /*-----------------------------------------------------------------------*/ -static -BYTE sum_sfn ( +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); + do { + sum = (sum >> 1) + (sum << 7) + *dir++; + } while (--n); return sum; } -#endif /* _USE_LFN != 0 */ +#endif /* FF_USE_LFN */ -#if _FS_EXFAT +#if FF_FS_EXFAT /*-----------------------------------------------------------------------*/ /* exFAT: Checksum */ /*-----------------------------------------------------------------------*/ -static -WORD xdir_sum ( /* Get checksum of the directoly block */ +static WORD xdir_sum ( /* Get checksum of the directoly entry block */ const BYTE* dir /* Directory entry block to be calculated */ ) { @@ -1831,9 +2056,9 @@ WORD xdir_sum ( /* Get checksum of the directoly block */ WORD sum; - szblk = (dir[XDIR_NumSec] + 1) * SZDIRE; + szblk = (dir[XDIR_NumSec] + 1) * SZDIRE; /* Number of bytes of the entry block */ for (i = sum = 0; i < szblk; i++) { - if (i == XDIR_SetSum) { /* Skip sum field */ + if (i == XDIR_SetSum) { /* Skip 2-byte sum field */ i++; } else { sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + dir[i]; @@ -1844,8 +2069,7 @@ WORD xdir_sum ( /* Get checksum of the directoly block */ -static -WORD xname_sum ( /* Get check sum (to be used as hash) of the name */ +static WORD xname_sum ( /* Get check sum (to be used as hash) of the file name */ const WCHAR* name /* File name to be calculated */ ) { @@ -1854,7 +2078,7 @@ WORD xname_sum ( /* Get check sum (to be used as hash) of the name */ while ((chr = *name++) != 0) { - chr = ff_wtoupper(chr); /* File name needs to be ignored case */ + chr = (WCHAR)ff_wtoupper(chr); /* File name needs to be up-case converted */ sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + (chr & 0xFF); sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + (chr >> 8); } @@ -1862,11 +2086,10 @@ WORD xname_sum ( /* Get check sum (to be used as hash) of the name */ } -#if !_FS_READONLY && _USE_MKFS -static -DWORD xsum32 ( - BYTE dat, /* Data to be sumed */ - DWORD sum /* Previous value */ +#if !FF_FS_READONLY && FF_USE_MKFS +static DWORD xsum32 ( /* Returns 32-bit checksum */ + BYTE dat, /* Byte to be calculated (byte-by-byte processing) */ + DWORD sum /* Previous sum value */ ) { sum = ((sum & 1) ? 0x80000000 : 0) + (sum >> 1) + dat; @@ -1875,130 +2098,137 @@ DWORD xsum32 ( #endif -#if _FS_MINIMIZE <= 1 || _FS_RPATH >= 2 +#if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 /*------------------------------------------------------*/ /* exFAT: Get object information from a directory block */ /*------------------------------------------------------*/ -static -void get_xdir_info ( +static void get_xfileinfo ( BYTE* dirb, /* Pointer to the direcotry entry block 85+C0+C1s */ FILINFO* fno /* Buffer to store the extracted file information */ ) { - UINT di, si; - WCHAR w; -#if !_LFN_UNICODE - UINT nc; -#endif - - /* Get file name */ -#if _LFN_UNICODE - if (dirb[XDIR_NumName] <= _MAX_LFN) { - for (si = SZDIRE * 2, di = 0; di < dirb[XDIR_NumName]; si += 2, di++) { - if ((si % SZDIRE) == 0) si += 2; /* Skip entry type field */ - w = ld_word(dirb + si); /* Get a character */ - fno->fname[di] = w; /* Store it */ - } - } else { - di = 0; /* Buffer overflow and inaccessible object */ - } -#else - for (si = SZDIRE * 2, di = nc = 0; nc < dirb[XDIR_NumName]; si += 2, nc++) { - if ((si % SZDIRE) == 0) si += 2; /* Skip entry type field */ - w = ld_word(dirb + si); /* Get a character */ - w = ff_convert(w, 0); /* Unicode -> OEM */ - if (w == 0) { di = 0; break; } /* Could not be converted and inaccessible object */ - if (_DF1S && w >= 0x100) { /* Put 1st byte if it is a DBC (always false at SBCS cfg) */ - fno->fname[di++] = (char)(w >> 8); + WCHAR wc, hs; + UINT di, si, nc; + + /* Get file name from the entry block */ + si = SZDIRE * 2; /* 1st C1 entry */ + nc = 0; hs = 0; di = 0; + while (nc < dirb[XDIR_NumName]) { + if (si >= MAXDIRB(FF_MAX_LFN)) { di = 0; break; } /* Truncated directory block? */ + if ((si % SZDIRE) == 0) si += 2; /* Skip entry type field */ + wc = ld_word(dirb + si); si += 2; nc++; /* Get a character */ + if (hs == 0 && IsSurrogate(wc)) { /* Is it a surrogate? */ + hs = wc; continue; /* Get low surrogate */ } - if (di >= _MAX_LFN) { di = 0; break; } /* Buffer overflow and inaccessible object */ - fno->fname[di++] = (char)w; + wc = put_utf((DWORD)hs << 16 | wc, &fno->fname[di], FF_LFN_BUF - di); /* Store it in API encoding */ + if (wc == 0) { di = 0; break; } /* Buffer overflow or wrong encoding? */ + di += wc; + hs = 0; } -#endif - if (di == 0) fno->fname[di++] = '?'; /* Inaccessible object? */ - fno->fname[di] = 0; /* Terminate file name */ + if (hs != 0) di = 0; /* Broken surrogate pair? */ + if (di == 0) fno->fname[di++] = '?'; /* Inaccessible object name? */ + fno->fname[di] = 0; /* Terminate the name */ + fno->altname[0] = 0; /* exFAT does not support SFN */ - fno->altname[0] = 0; /* No SFN */ - fno->fattrib = dirb[XDIR_Attr]; /* Attribute */ + fno->fattrib = dirb[XDIR_Attr]; /* Attribute */ fno->fsize = (fno->fattrib & AM_DIR) ? 0 : ld_qword(dirb + XDIR_FileSize); /* Size */ fno->ftime = ld_word(dirb + XDIR_ModTime + 0); /* Time */ fno->fdate = ld_word(dirb + XDIR_ModTime + 2); /* Date */ } -#endif /* _FS_MINIMIZE <= 1 || _FS_RPATH >= 2 */ +#endif /* FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 */ /*-----------------------------------*/ /* exFAT: Get a directry entry block */ /*-----------------------------------*/ -static -FRESULT load_xdir ( /* FR_INT_ERR: invalid entry block */ - DIR* dp /* Pointer to the reading direcotry object pointing the 85 entry */ +static FRESULT load_xdir ( /* FR_INT_ERR: invalid entry block */ + DIR* dp /* Reading direcotry object pointing top of the entry block to load */ ) { FRESULT res; - UINT i, nent; + UINT i, sz_ent; BYTE* dirb = dp->obj.fs->dirbuf; /* Pointer to the on-memory direcotry entry block 85+C0+C1s */ /* Load 85 entry */ res = move_window(dp->obj.fs, dp->sect); if (res != FR_OK) return res; - if (dp->dir[XDIR_Type] != 0x85) return FR_INT_ERR; - mem_cpy(dirb, dp->dir, SZDIRE); - nent = dirb[XDIR_NumSec] + 1; + if (dp->dir[XDIR_Type] != 0x85) return FR_INT_ERR; /* Invalid order */ + mem_cpy(dirb + 0 * SZDIRE, dp->dir, SZDIRE); + sz_ent = (dirb[XDIR_NumSec] + 1) * SZDIRE; + if (sz_ent < 3 * SZDIRE || sz_ent > 19 * SZDIRE) return FR_INT_ERR; /* Load C0 entry */ res = dir_next(dp, 0); + if (res == FR_NO_FILE) res = FR_INT_ERR; /* It cannot be */ if (res != FR_OK) return res; res = move_window(dp->obj.fs, dp->sect); if (res != FR_OK) return res; - if (dp->dir[XDIR_Type] != 0xC0) return FR_INT_ERR; - mem_cpy(dirb + SZDIRE, dp->dir, SZDIRE); + if (dp->dir[XDIR_Type] != 0xC0) return FR_INT_ERR; /* Invalid order */ + mem_cpy(dirb + 1 * SZDIRE, dp->dir, SZDIRE); + if (MAXDIRB(dirb[XDIR_NumName]) > sz_ent) return FR_INT_ERR; /* Load C1 entries */ - if (nent < 3 || nent > 19) return FR_NO_FILE; - i = SZDIRE * 2; nent *= SZDIRE; + i = 2 * SZDIRE; /* C1 offset to load */ do { res = dir_next(dp, 0); + if (res == FR_NO_FILE) res = FR_INT_ERR; /* It cannot be */ if (res != FR_OK) return res; res = move_window(dp->obj.fs, dp->sect); if (res != FR_OK) return res; - if (dp->dir[XDIR_Type] != 0xC1) return FR_INT_ERR; - mem_cpy(dirb + i, dp->dir, SZDIRE); - i += SZDIRE; - } while (i < nent); - - /* Sanity check */ - if (xdir_sum(dirb) != ld_word(dirb + XDIR_SetSum)) return FR_INT_ERR; + if (dp->dir[XDIR_Type] != 0xC1) return FR_INT_ERR; /* Invalid order */ + if (i < MAXDIRB(FF_MAX_LFN)) mem_cpy(dirb + i, dp->dir, SZDIRE); + } while ((i += SZDIRE) < sz_ent); + /* Sanity check (do it for only accessible object) */ + if (i <= MAXDIRB(FF_MAX_LFN)) { + if (xdir_sum(dirb) != ld_word(dirb + XDIR_SetSum)) return FR_INT_ERR; + } return FR_OK; } -#if !_FS_READONLY || _FS_RPATH != 0 +/*------------------------------------------------------------------*/ +/* exFAT: Initialize object allocation info with loaded entry block */ +/*------------------------------------------------------------------*/ + +static void init_alloc_info ( + FATFS* fs, /* Filesystem object */ + FFOBJID* obj /* Object allocation information to be initialized */ +) +{ + obj->sclust = ld_dword(fs->dirbuf + XDIR_FstClus); /* Start cluster */ + obj->objsize = ld_qword(fs->dirbuf + XDIR_FileSize); /* Size */ + obj->stat = fs->dirbuf[XDIR_GenFlags] & 2; /* Allocation status */ + obj->n_frag = 0; /* No last fragment info */ +} + + + +#if !FF_FS_READONLY || FF_FS_RPATH != 0 /*------------------------------------------------*/ /* exFAT: Load the object's directory entry block */ /*------------------------------------------------*/ -static -FRESULT load_obj_dir ( + +static FRESULT load_obj_xdir ( DIR* dp, /* Blank directory object to be used to access containing direcotry */ - const _FDID* obj /* Object with containing directory information */ + const FFOBJID* obj /* Object with its containing directory information */ ) { FRESULT res; - /* Open object containing directory */ dp->obj.fs = obj->fs; dp->obj.sclust = obj->c_scl; dp->obj.stat = (BYTE)obj->c_size; dp->obj.objsize = obj->c_size & 0xFFFFFF00; + dp->obj.n_frag = 0; dp->blk_ofs = obj->c_ofs; - res = dir_sdi(dp, dp->blk_ofs); /* Goto the block location */ + res = dir_sdi(dp, dp->blk_ofs); /* Goto object's entry block */ if (res == FR_OK) { res = load_xdir(dp); /* Load the object's entry block */ } @@ -2007,12 +2237,12 @@ FRESULT load_obj_dir ( #endif -#if !_FS_READONLY -/*-----------------------------------------------*/ -/* exFAT: Store the directory block to the media */ -/*-----------------------------------------------*/ -static -FRESULT store_xdir ( +#if !FF_FS_READONLY +/*----------------------------------------*/ +/* exFAT: Store the directory entry block */ +/*----------------------------------------*/ + +static FRESULT store_xdir ( DIR* dp /* Pointer to the direcotry object */ ) { @@ -2024,7 +2254,7 @@ FRESULT store_xdir ( st_word(dirb + XDIR_SetSum, xdir_sum(dirb)); nent = dirb[XDIR_NumSec] + 1; - /* Store the set of directory to the volume */ + /* Store the direcotry entry block to the directory */ res = dir_sdi(dp, dp->blk_ofs); while (res == FR_OK) { res = move_window(dp->obj.fs, dp->sect); @@ -2044,49 +2274,53 @@ FRESULT store_xdir ( /* exFAT: Create a new directory enrty block */ /*-------------------------------------------*/ -static -void create_xdir ( +static void create_xdir ( BYTE* dirb, /* Pointer to the direcotry entry block buffer */ - const WCHAR* lfn /* Pointer to the nul terminated file name */ + const WCHAR* lfn /* Pointer to the object name */ ) { UINT i; - BYTE nb, nc; - WCHAR chr; + BYTE nc1, nlen; + WCHAR wc; - mem_set(dirb, 0, 2 * SZDIRE); /* Initialize 85+C0 entry */ - dirb[XDIR_Type] = 0x85; - dirb[XDIR_Type + SZDIRE] = 0xC0; - st_word(dirb + XDIR_NameHash, xname_sum(lfn)); /* Set name hash */ + /* Create 85,C0 entry */ + mem_set(dirb, 0, 2 * SZDIRE); + dirb[0 * SZDIRE + XDIR_Type] = 0x85; /* 85 entry */ + dirb[1 * SZDIRE + XDIR_Type] = 0xC0; /* C0 entry */ - i = SZDIRE * 2; /* C1 offset */ - nc = 0; nb = 1; chr = 1; + /* Create C1 entries */ + i = SZDIRE * 2; /* Top of C1 entries */ + nlen = nc1 = 0; wc = 1; do { dirb[i++] = 0xC1; dirb[i++] = 0; /* Entry type C1 */ do { /* Fill name field */ - if (chr && (chr = lfn[nc]) != 0) nc++; /* Get a character if exist */ - st_word(dirb + i, chr); i += 2; /* Store it */ - } while (i % SZDIRE); - nb++; - } while (lfn[nc]); /* Fill next entry if any char follows */ - - dirb[XDIR_NumName] = nc; /* Set name length */ - dirb[XDIR_NumSec] = nb; /* Set number of C0+C1s */ + if (wc != 0 && (wc = lfn[nlen]) != 0) nlen++; /* Get a character if exist */ + st_word(dirb + i, wc); /* Store it */ + i += 2; + } while (i % SZDIRE != 0); + nc1++; + } while (lfn[nlen]); /* Fill next entry if any char follows */ + + dirb[XDIR_NumName] = nlen; /* Set name length */ + dirb[XDIR_NumSec] = 1 + nc1; /* Set secondary count (C0 + C1s) */ + st_word(dirb + XDIR_NameHash, xname_sum(lfn)); /* Set name hash */ } -#endif /* !_FS_READONLY */ -#endif /* _FS_EXFAT */ +#endif /* !FF_FS_READONLY */ +#endif /* FF_FS_EXFAT */ -#if _FS_MINIMIZE <= 1 || _FS_RPATH >= 2 || _USE_LABEL || _FS_EXFAT +#if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 || FF_USE_LABEL || FF_FS_EXFAT /*-----------------------------------------------------------------------*/ /* Read an object from the directory */ /*-----------------------------------------------------------------------*/ -static -FRESULT dir_read ( +#define dir_read_file(dp) dir_read(dp, 0) +#define dir_read_label(dp) dir_read(dp, 1) + +static FRESULT dir_read ( DIR* dp, /* Pointer to the directory object */ int vol /* Filtered by 0:file/directory or 1:volume label */ ) @@ -2094,7 +2328,7 @@ FRESULT dir_read ( FRESULT res = FR_NO_FILE; FATFS *fs = dp->obj.fs; BYTE a, c; -#if _USE_LFN != 0 +#if FF_USE_LFN BYTE ord = 0xFF, sum = 0xFF; #endif @@ -2102,10 +2336,12 @@ FRESULT dir_read ( res = move_window(fs, dp->sect); if (res != FR_OK) break; c = dp->dir[DIR_Name]; /* Test for the entry type */ - if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of the directory */ -#if _FS_EXFAT + if (c == 0) { + res = FR_NO_FILE; break; /* Reached to end of the directory */ + } +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ - if (_USE_LABEL && vol) { + if (FF_USE_LABEL && vol) { if (c == 0x83) break; /* Volume label entry? */ } else { if (c == 0x85) { /* Start of the file entry block? */ @@ -2119,9 +2355,9 @@ FRESULT dir_read ( } } else #endif - { /* On the FAT12/16/32 volume */ + { /* On the FAT/FAT32 volume */ dp->obj.attr = a = dp->dir[DIR_Attr] & AM_MASK; /* Get attribute */ -#if _USE_LFN != 0 /* LFN configuration */ +#if FF_USE_LFN /* LFN configuration */ if (c == DDEM || c == '.' || (int)((a & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */ ord = 0xFF; } else { @@ -2134,7 +2370,7 @@ FRESULT dir_read ( /* Check LFN validity and capture it */ ord = (c == ord && sum == dp->dir[LDIR_Chksum] && pick_lfn(fs->lfnbuf, dp->dir)) ? ord - 1 : 0xFF; } else { /* An SFN entry is found */ - if (ord || sum != sum_sfn(dp->dir)) { /* Is there a valid LFN? */ + if (ord != 0 || sum != sum_sfn(dp->dir)) { /* Is there a valid LFN? */ dp->blk_ofs = 0xFFFFFFFF; /* It has no LFN. */ } break; @@ -2154,7 +2390,7 @@ FRESULT dir_read ( return res; } -#endif /* _FS_MINIMIZE <= 1 || _USE_LABEL || _FS_RPATH >= 2 */ +#endif /* FF_FS_MINIMIZE <= 1 || FF_USE_LABEL || FF_FS_RPATH >= 2 */ @@ -2162,28 +2398,30 @@ FRESULT dir_read ( /* 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 with the file name */ +static FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */ + DIR* dp /* Pointer to the directory object with the file name */ ) { FRESULT res; FATFS *fs = dp->obj.fs; BYTE c; -#if _USE_LFN != 0 +#if FF_USE_LFN BYTE a, ord, sum; #endif res = dir_sdi(dp, 0); /* Rewind directory object */ if (res != FR_OK) return res; -#if _FS_EXFAT +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ BYTE nc; UINT di, ni; WORD hash = xname_sum(fs->lfnbuf); /* Hash value of the name to find */ - while ((res = dir_read(dp, 0)) == FR_OK) { /* Read an item */ - if (ld_word(fs->dirbuf + XDIR_NameHash) != hash) continue; /* Skip the comparison if hash value mismatched */ + while ((res = dir_read_file(dp)) == FR_OK) { /* Read an item */ +#if FF_MAX_LFN < 255 + if (fs->dirbuf[XDIR_NumName] > FF_MAX_LFN) continue; /* Skip comparison if inaccessible object name */ +#endif + if (ld_word(fs->dirbuf + XDIR_NameHash) != hash) continue; /* Skip comparison if hash mismatched */ for (nc = fs->dirbuf[XDIR_NumName], di = SZDIRE * 2, ni = 0; nc; nc--, di += 2, ni++) { /* Compare the name */ if ((di % SZDIRE) == 0) di += 2; if (ff_wtoupper(ld_word(fs->dirbuf + di)) != ff_wtoupper(fs->lfnbuf[ni])) break; @@ -2193,8 +2431,8 @@ FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */ return res; } #endif - /* On the FAT12/16/32 volume */ -#if _USE_LFN != 0 + /* On the FAT/FAT32 volume */ +#if FF_USE_LFN ord = sum = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */ #endif do { @@ -2202,7 +2440,7 @@ FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */ if (res != FR_OK) break; c = dp->dir[DIR_Name]; if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */ -#if _USE_LFN != 0 /* LFN configuration */ +#if FF_USE_LFN /* LFN configuration */ dp->obj.attr = a = dp->dir[DIR_Attr] & AM_MASK; if (c == DDEM || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */ ord = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */ @@ -2218,7 +2456,7 @@ FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */ ord = (c == ord && sum == dp->dir[LDIR_Chksum] && cmp_lfn(fs->lfnbuf, dp->dir)) ? ord - 1 : 0xFF; } } else { /* An SFN entry is found */ - if (!ord && sum == sum_sfn(dp->dir)) break; /* LFN matched? */ + if (ord == 0 && sum == sum_sfn(dp->dir)) break; /* LFN matched? */ if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(dp->dir, dp->fn, 11)) break; /* SFN matched? */ ord = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */ } @@ -2236,19 +2474,18 @@ FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */ -#if !_FS_READONLY +#if !FF_FS_READONLY /*-----------------------------------------------------------------------*/ /* Register an object to the directory */ /*-----------------------------------------------------------------------*/ -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 */ +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; FATFS *fs = dp->obj.fs; -#if _USE_LFN != 0 /* LFN configuration */ +#if FF_USE_LFN /* LFN configuration */ UINT n, nlen, nent; BYTE sn[12], sum; @@ -2256,34 +2493,38 @@ FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many S if (dp->fn[NSFLAG] & (NS_DOT | NS_NONAME)) return FR_INVALID_NAME; /* Check name validity */ for (nlen = 0; fs->lfnbuf[nlen]; nlen++) ; /* Get lfn length */ -#if _FS_EXFAT +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ - DIR dj; - nent = (nlen + 14) / 15 + 2; /* Number of entries to allocate (85+C0+C1s) */ res = dir_alloc(dp, nent); /* Allocate entries */ if (res != FR_OK) return res; - dp->blk_ofs = dp->dptr - SZDIRE * (nent - 1); /* Set block position */ + dp->blk_ofs = dp->dptr - SZDIRE * (nent - 1); /* Set the allocated entry block offset */ - if (dp->obj.sclust != 0 && (dp->obj.stat & 4)) { /* Has the sub-directory been stretched? */ - dp->obj.stat &= 3; - dp->obj.objsize += (DWORD)fs->csize * SS(fs); /* Increase object size by cluster size */ - res = fill_fat_chain(&dp->obj); /* Complement FAT chain if needed */ + if (dp->obj.stat & 4) { /* Has the directory been stretched? */ + dp->obj.stat &= ~4; + res = fill_first_frag(&dp->obj); /* Fill the first fragment on the FAT if needed */ if (res != FR_OK) return res; - res = load_obj_dir(&dj, &dp->obj); - if (res != FR_OK) return res; /* Load the object status */ - st_qword(fs->dirbuf + XDIR_FileSize, dp->obj.objsize); /* Update the allocation status */ - st_qword(fs->dirbuf + XDIR_ValidFileSize, dp->obj.objsize); - fs->dirbuf[XDIR_GenFlags] = dp->obj.stat | 1; - res = store_xdir(&dj); /* Store the object status */ + res = fill_last_frag(&dp->obj, dp->clust, 0xFFFFFFFF); /* Fill the last fragment on the FAT if needed */ if (res != FR_OK) return res; + if (dp->obj.sclust != 0) { /* Is it a sub directory? */ + DIR dj; + + res = load_obj_xdir(&dj, &dp->obj); /* Load the object status */ + if (res != FR_OK) return res; + dp->obj.objsize += (DWORD)fs->csize * SS(fs); /* Increase the directory size by cluster size */ + st_qword(fs->dirbuf + XDIR_FileSize, dp->obj.objsize); /* Update the allocation status */ + st_qword(fs->dirbuf + XDIR_ValidFileSize, dp->obj.objsize); + fs->dirbuf[XDIR_GenFlags] = dp->obj.stat | 1; + res = store_xdir(&dj); /* Store the object status */ + if (res != FR_OK) return res; + } } create_xdir(fs->dirbuf, fs->lfnbuf); /* Create on-memory directory block to be written later */ return FR_OK; } #endif - /* On the FAT12/16/32 volume */ + /* On the FAT/FAT32 volume */ mem_cpy(sn, dp->fn, 12); if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */ dp->fn[NSFLAG] = NS_NOLFN; /* Find only SFN */ @@ -2325,7 +2566,7 @@ FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many S if (res == FR_OK) { mem_set(dp->dir, 0, SZDIRE); /* Clean the entry */ mem_cpy(dp->dir + DIR_Name, dp->fn, 11); /* Put SFN */ -#if _USE_LFN != 0 +#if FF_USE_LFN dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY | NS_EXT); /* Put NT flag */ #endif fs->wflag = 1; @@ -2335,23 +2576,22 @@ FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many S return res; } -#endif /* !_FS_READONLY */ +#endif /* !FF_FS_READONLY */ -#if !_FS_READONLY && _FS_MINIMIZE == 0 +#if !FF_FS_READONLY && FF_FS_MINIMIZE == 0 /*-----------------------------------------------------------------------*/ /* Remove an object from the directory */ /*-----------------------------------------------------------------------*/ -static -FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */ - DIR* dp /* Directory object pointing the entry to be removed */ +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; FATFS *fs = dp->obj.fs; -#if _USE_LFN != 0 /* LFN configuration */ +#if FF_USE_LFN /* LFN configuration */ DWORD last = dp->dptr; res = (dp->blk_ofs == 0xFFFFFFFF) ? FR_OK : dir_sdi(dp, dp->blk_ofs); /* Goto top of the entry block if LFN is exist */ @@ -2359,11 +2599,10 @@ FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */ do { res = move_window(fs, dp->sect); if (res != FR_OK) break; - /* Mark an entry 'deleted' */ - if (_FS_EXFAT && fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ - dp->dir[XDIR_Type] &= 0x7F; - } else { /* On the FAT12/16/32 volume */ - dp->dir[DIR_Name] = DDEM; + if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ + dp->dir[XDIR_Type] &= 0x7F; /* Clear the entry InUse flag. */ + } else { /* On the FAT/FAT32 volume */ + dp->dir[DIR_Name] = DDEM; /* Mark the entry 'deleted'. */ } fs->wflag = 1; if (dp->dptr >= last) break; /* If reached last entry then all entries of the object has been deleted. */ @@ -2375,7 +2614,7 @@ FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */ res = move_window(fs, dp->sect); if (res == FR_OK) { - dp->dir[DIR_Name] = DDEM; + dp->dir[DIR_Name] = DDEM; /* Mark the entry 'deleted'.*/ fs->wflag = 1; } #endif @@ -2383,143 +2622,151 @@ FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */ return res; } -#endif /* !_FS_READONLY && _FS_MINIMIZE == 0 */ +#endif /* !FF_FS_READONLY && FF_FS_MINIMIZE == 0 */ -#if _FS_MINIMIZE <= 1 || _FS_RPATH >= 2 +#if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 /*-----------------------------------------------------------------------*/ /* Get file information from directory entry */ /*-----------------------------------------------------------------------*/ -static -void get_fileinfo ( /* No return code */ +static void get_fileinfo ( DIR* dp, /* Pointer to the directory object */ - FILINFO* fno /* Pointer to the file information to be filled */ + FILINFO* fno /* Pointer to the file information to be filled */ ) { - UINT i, j; - TCHAR c; - DWORD tm; -#if _USE_LFN != 0 - WCHAR w, lfv; + UINT si, di; +#if FF_USE_LFN + WCHAR wc, hs; FATFS *fs = dp->obj.fs; +#else + TCHAR c; #endif - fno->fname[0] = 0; /* Invaidate file info */ - if (!dp->sect) return; /* Exit if read pointer has reached end of directory */ + fno->fname[0] = 0; /* Invaidate file info */ + if (dp->sect == 0) return; /* Exit if read pointer has reached end of directory */ -#if _USE_LFN != 0 /* LFN configuration */ -#if _FS_EXFAT +#if FF_USE_LFN /* LFN configuration */ +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ - get_xdir_info(fs->dirbuf, fno); + get_xfileinfo(fs->dirbuf, fno); return; } else #endif - { /* On the FAT12/16/32 volume */ + { /* On the FAT/FAT32 volume */ if (dp->blk_ofs != 0xFFFFFFFF) { /* Get LFN if available */ - i = j = 0; - while ((w = fs->lfnbuf[j++]) != 0) { /* Get an LFN character */ -#if !_LFN_UNICODE - w = ff_convert(w, 0); /* Unicode -> OEM */ - if (w == 0) { 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 at SBCS cfg) */ - fno->fname[i++] = (char)(w >> 8); + si = di = hs = 0; + while (fs->lfnbuf[si] != 0) { + wc = fs->lfnbuf[si++]; /* Get an LFN character (UTF-16) */ + if (hs == 0 && IsSurrogate(wc)) { /* Is it a surrogate? */ + hs = wc; continue; /* Get low surrogate */ } -#endif - if (i >= _MAX_LFN) { i = 0; break; } /* No LFN if buffer overflow */ - fno->fname[i++] = (TCHAR)w; + wc = put_utf((DWORD)hs << 16 | wc, &fno->fname[di], FF_LFN_BUF - di); /* Store it in UTF-16 or UTF-8 encoding */ + if (wc == 0) { di = 0; break; } /* Invalid char or buffer overflow? */ + di += wc; + hs = 0; } - fno->fname[i] = 0; /* Terminate the LFN */ + if (hs != 0) di = 0; /* Broken surrogate pair? */ + fno->fname[di] = 0; /* Terminate the LFN (null string means LFN is invalid) */ } } - i = j = 0; - lfv = fno->fname[i]; /* LFN is exist if non-zero */ - while (i < 11) { /* Copy name body and extension */ - c = (TCHAR)dp->dir[i++]; - if (c == ' ') continue; /* Skip padding spaces */ - if (c == RDDEM) c = (TCHAR)DDEM; /* Restore replaced DDEM character */ - if (i == 9) { /* Insert a . if extension is exist */ - if (!lfv) fno->fname[j] = '.'; - fno->altname[j++] = '.'; - } -#if _LFN_UNICODE - if (IsDBCS1(c) && i != 8 && i != 11 && IsDBCS2(dp->dir[i])) { - c = c << 8 | dp->dir[i++]; + si = di = 0; + while (si < 11) { /* Get SFN from SFN entry */ + wc = dp->dir[si++]; /* Get a char */ + if (wc == ' ') continue; /* Skip padding spaces */ + if (wc == RDDEM) wc = DDEM; /* Restore replaced DDEM character */ + if (si == 9 && di < FF_SFN_BUF) fno->altname[di++] = '.'; /* Insert a . if extension is exist */ +#if FF_LFN_UNICODE >= 1 /* Unicode output */ + if (dbc_1st((BYTE)wc) && si != 8 && si != 11 && dbc_2nd(dp->dir[si])) { /* Make a DBC if needed */ + wc = wc << 8 | dp->dir[si++]; } - c = ff_convert(c, 1); /* OEM -> Unicode */ - if (!c) c = '?'; + wc = ff_oem2uni(wc, CODEPAGE); /* ANSI/OEM -> Unicode */ + if (wc == 0) { di = 0; break; } /* Wrong char in the current code page? */ + wc = put_utf(wc, &fno->altname[di], FF_SFN_BUF - di); /* Store it in Unicode */ + if (wc == 0) { di = 0; break; } /* Buffer overflow? */ + di += wc; +#else /* ANSI/OEM output */ + fno->altname[di++] = (TCHAR)wc; /* Store it without any conversion */ #endif - fno->altname[j] = c; - if (!lfv) { - if (IsUpper(c) && (dp->dir[DIR_NTres] & (i >= 9 ? NS_EXT : NS_BODY))) { - c += 0x20; /* To lower */ + } + fno->altname[di] = 0; /* Terminate the SFN (null string means SFN is invalid) */ + + if (fno->fname[0] == 0) { /* If LFN is invalid, altname[] needs to be copied to fname[] */ + if (di == 0) { /* If LFN and SFN both are invalid, this object is inaccesible */ + fno->fname[di++] = '?'; + } else { + for (si = di = 0; fno->altname[si]; si++, di++) { /* Copy altname[] to fname[] with case information */ + wc = (WCHAR)fno->altname[si]; + if (IsUpper(wc) && (dp->dir[DIR_NTres] & ((si >= 9) ? NS_EXT : NS_BODY))) wc += 0x20; + fno->fname[di] = (TCHAR)wc; } - fno->fname[j] = c; } - j++; + fno->fname[di] = 0; /* Terminate the LFN */ + if (!dp->dir[DIR_NTres]) fno->altname[0] = 0; /* Altname is not needed if neither LFN nor case info is exist. */ } - if (!lfv) { - fno->fname[j] = 0; - if (!dp->dir[DIR_NTres]) j = 0; /* Altname is no longer needed if neither LFN nor case info is exist. */ - } - fno->altname[j] = 0; /* Terminate the SFN */ #else /* Non-LFN configuration */ - i = j = 0; - while (i < 11) { /* Copy name body and extension */ - c = (TCHAR)dp->dir[i++]; - if (c == ' ') continue; /* Skip padding spaces */ - if (c == RDDEM) c = (TCHAR)DDEM; /* Restore replaced DDEM character */ - if (i == 9) fno->fname[j++] = '.'; /* Insert a . if extension is exist */ - fno->fname[j++] = c; + si = di = 0; + while (si < 11) { /* Copy name body and extension */ + c = (TCHAR)dp->dir[si++]; + if (c == ' ') continue; /* Skip padding spaces */ + if (c == RDDEM) c = DDEM; /* Restore replaced DDEM character */ + if (si == 9) fno->fname[di++] = '.';/* Insert a . if extension is exist */ + fno->fname[di++] = c; } - fno->fname[j] = 0; + fno->fname[di] = 0; #endif - fno->fattrib = dp->dir[DIR_Attr]; /* Attribute */ - fno->fsize = ld_dword(dp->dir + DIR_FileSize); /* Size */ - tm = ld_dword(dp->dir + DIR_ModTime); /* Timestamp */ - fno->ftime = (WORD)tm; fno->fdate = (WORD)(tm >> 16); + fno->fattrib = dp->dir[DIR_Attr]; /* Attribute */ + fno->fsize = ld_dword(dp->dir + DIR_FileSize); /* Size */ + fno->ftime = ld_word(dp->dir + DIR_ModTime + 0); /* Time */ + fno->fdate = ld_word(dp->dir + DIR_ModTime + 2); /* Date */ } -#endif /* _FS_MINIMIZE <= 1 || _FS_RPATH >= 2 */ +#endif /* FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 */ -#if _USE_FIND && _FS_MINIMIZE <= 1 +#if FF_USE_FIND && FF_FS_MINIMIZE <= 1 /*-----------------------------------------------------------------------*/ /* Pattern matching */ /*-----------------------------------------------------------------------*/ -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 */ +static DWORD get_achar ( /* Get a character and advances ptr */ + const TCHAR** ptr /* Pointer to pointer to the ANSI/OEM or Unicode string */ ) { -#if !_LFN_UNICODE - WCHAR chr; + DWORD chr; - chr = (BYTE)*(*ptr)++; /* Get a byte */ - if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */ -#ifdef _EXCVT + +#if FF_USE_LFN && FF_LFN_UNICODE >= 1 /* Unicode input */ + chr = tchar2uni(ptr); + if (chr == 0xFFFFFFFF) chr = 0; /* Wrong UTF encoding is recognized as end of the string */ + chr = ff_wtoupper(chr); + +#else /* ANSI/OEM input */ + chr = (BYTE)*(*ptr)++; /* Get a byte */ + if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */ +#if FF_CODE_PAGE == 0 + if (ExCvt && chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */ +#elif FF_CODE_PAGE < 900 if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */ -#else - if (IsDBCS1(chr) && IsDBCS2(**ptr)) { /* Get DBC 2nd byte if needed */ - chr = chr << 8 | (BYTE)*(*ptr)++; +#endif +#if FF_CODE_PAGE == 0 || FF_CODE_PAGE >= 900 + if (dbc_1st((BYTE)chr)) { /* Get DBC 2nd byte if needed */ + chr = dbc_2nd((BYTE)**ptr) ? chr << 8 | (BYTE)*(*ptr)++ : 0; } #endif - return chr; -#else - return ff_wtoupper(*(*ptr)++); /* Get a word and to upper */ + #endif + return chr; } -static -int pattern_matching ( /* 0:not matched, 1:matched */ +static int pattern_matching ( /* 0:not matched, 1:matched */ const TCHAR* pat, /* Matching pattern */ const TCHAR* nam, /* String to be tested */ int skip, /* Number of pre-skip chars (number of ?s) */ @@ -2527,21 +2774,21 @@ int pattern_matching ( /* 0:not matched, 1:matched */ ) { const TCHAR *pp, *np; - WCHAR pc, nc; + DWORD 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) */ + if (*pat == 0 && 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 */ + do { /* Analyze the wildcard block */ 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) */ @@ -2558,7 +2805,7 @@ int pattern_matching ( /* 0:not matched, 1:matched */ return 0; } -#endif /* _USE_FIND && _FS_MINIMIZE <= 1 */ +#endif /* FF_USE_FIND && FF_FS_MINIMIZE <= 1 */ @@ -2566,131 +2813,133 @@ int pattern_matching ( /* 0:not matched, 1:matched */ /* 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 */ +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 != 0 /* LFN configuration */ +#if FF_USE_LFN /* LFN configuration */ BYTE b, cf; - WCHAR w, *lfn; + WCHAR wc, *lfn; + DWORD uc; UINT i, ni, si, di; const TCHAR *p; - /* Create LFN in Unicode */ - p = *path; lfn = dp->obj.fs->lfnbuf; si = di = 0; - for (;;) { - w = p[si++]; /* Get a character */ - if (w < ' ') break; /* Break if end of the path name */ - if (w == '/' || w == '\\') { /* Break if a separator is found */ - while (p[si] == '/' || p[si] == '\\') si++; /* Skip duplicated separator if exist */ - break; - } - if (di >= _MAX_LFN) return FR_INVALID_NAME; /* Reject too long 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)) return FR_INVALID_NAME; /* Reject illegal characters for LFN */ - lfn[di++] = w; /* Store the Unicode character */ + + /* Create LFN into LFN working buffer */ + p = *path; lfn = dp->obj.fs->lfnbuf; di = 0; + for (;;) { + uc = tchar2uni(&p); /* Get a character */ + if (uc == 0xFFFFFFFF) return FR_INVALID_NAME; /* Invalid code or UTF decode error */ + if (uc >= 0x10000) lfn[di++] = (WCHAR)(uc >> 16); /* Store high surrogate if needed */ + wc = (WCHAR)uc; + if (wc < ' ' || wc == '/' || wc == '\\') break; /* Break if end of the path or a separator is found */ + if (wc < 0x80 && chk_chr("\"*:<>\?|\x7F", wc)) return FR_INVALID_NAME; /* Reject illegal characters for LFN */ + if (di >= FF_MAX_LFN) return FR_INVALID_NAME; /* Reject too long name */ + lfn[di++] = wc; /* 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 the path */ -#if _FS_RPATH != 0 + while (*p == '/' || *p == '\\') p++; /* Skip duplicated separators if exist */ + *path = p; /* Return pointer to the next segment */ + cf = (wc < ' ') ? NS_LAST : 0; /* Set last segment flag if end of the path */ + +#if FF_FS_RPATH != 0 if ((di == 1 && lfn[di - 1] == '.') || (di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot name? */ lfn[di] = 0; - for (i = 0; i < 11; i++) /* Create dot name for SFN entry */ + 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; + wc = lfn[di - 1]; + if (wc != ' ' && wc != '.') break; di--; } - lfn[di] = 0; /* LFN is created */ - if (di == 0) return FR_INVALID_NAME; /* Reject nul name */ + lfn[di] = 0; /* LFN is created into the working buffer */ + if (di == 0) return FR_INVALID_NAME; /* Reject null name */ /* 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) */ + for (si = 0; lfn[si] == ' '; si++) ; /* Remove leading spaces */ + if (si > 0 || lfn[si] == '.') cf |= NS_LOSS | NS_LFN; /* Is there any leading space or dot? */ + while (di > 0 && lfn[di - 1] != '.') di--; /* Find last dot (di<=si: no extension) */ + mem_set(dp->fn, ' ', 11); i = b = 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; + wc = lfn[si++]; /* Get an LFN character */ + if (wc == 0) break; /* Break on end of the LFN */ + if (wc == ' ' || (wc == '.' && si != di)) { /* Remove embedded 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 (i >= ni || si == di) { /* End of field? */ + if (ni == 11) { /* Name extension overflow? */ + 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 (si != di) cf |= NS_LOSS | NS_LFN; /* Name body overflow? */ + if (si > di) break; /* No name extension? */ + si = di; i = 8; ni = 11; b <<= 2; /* Enter name extension */ + 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 */ + if (wc >= 0x80) { /* Is this a non-ASCII character? */ + cf |= NS_LFN; /* LFN entry needs to be created */ +#if FF_CODE_PAGE == 0 + if (ExCvt) { /* At SBCS */ + wc = ff_uni2oem(wc, CODEPAGE); /* Unicode ==> ANSI/OEM code */ + if (wc & 0x80) wc = ExCvt[wc & 0x7F]; /* Convert extended character to upper (SBCS) */ + } else { /* At DBCS */ + wc = ff_uni2oem(ff_wtoupper(wc), CODEPAGE); /* Unicode ==> Upper convert ==> ANSI/OEM code */ + } +#elif FF_CODE_PAGE < 900 /* SBCS cfg */ + wc = ff_uni2oem(wc, CODEPAGE); /* Unicode ==> ANSI/OEM code */ + if (wc & 0x80) wc = ExCvt[wc & 0x7F]; /* Convert extended character to upper (SBCS) */ +#else /* DBCS cfg */ + wc = ff_uni2oem(ff_wtoupper(wc), CODEPAGE); /* Unicode ==> Upper convert ==> ANSI/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; + if (wc >= 0x100) { /* Is this a DBC? */ + if (i >= ni - 1) { /* Field overflow? */ + cf |= NS_LOSS | NS_LFN; + i = ni; continue; /* Next field */ } - dp->fn[i++] = (BYTE)(w >> 8); + dp->fn[i++] = (BYTE)(wc >> 8); /* Put 1st byte */ } else { /* SBC */ - if (!w || chk_chr("+,;=[]", w)) { /* Replace illegal characters for SFN */ - w = '_'; cf |= NS_LOSS | NS_LFN;/* Lossy conversion */ + if (wc == 0 || chk_chr("+,;=[]", wc)) { /* Replace illegal characters for SFN if needed */ + wc = '_'; cf |= NS_LOSS | NS_LFN;/* Lossy conversion */ } else { - if (IsUpper(w)) { /* ASCII large capital */ + if (IsUpper(wc)) { /* ASCII upper case? */ b |= 2; - } else { - if (IsLower(w)) { /* ASCII small capital */ - b |= 1; w -= 0x20; - } + } + if (IsLower(wc)) { /* ASCII lower case? */ + b |= 1; wc -= 0x20; } } } - dp->fn[i++] = (BYTE)w; + dp->fn[i++] = (BYTE)wc; } 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) cf |= NS_LFN; /* Create LFN entry when there are composite capitals */ - 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) */ + if (ni == 8) b <<= 2; /* Shift capital flags if no extension */ + if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03) cf |= NS_LFN; /* LFN entry needs to be created if composite capitals */ + if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */ + if (b & 0x01) cf |= NS_EXT; /* NT flag (Extension has small capital letters only) */ + if (b & 0x04) cf |= NS_BODY; /* NT flag (Body has small capital letters only) */ } - dp->fn[NSFLAG] = cf; /* SFN is created */ + dp->fn[NSFLAG] = cf; /* SFN is created into dp->fn[] */ return FR_OK; -#else /* _USE_LFN != 0 : Non-LFN configuration */ +#else /* FF_USE_LFN : Non-LFN configuration */ BYTE c, d, *sfn; UINT ni, si, i; const char *p; @@ -2699,7 +2948,7 @@ FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */ p = *path; sfn = dp->fn; mem_set(sfn, ' ', 11); si = i = 0; ni = 8; -#if _FS_RPATH != 0 +#if FF_FS_RPATH != 0 if (p[si] == '.') { /* Is this a dot entry? */ for (;;) { c = (BYTE)p[si++]; @@ -2713,29 +2962,29 @@ FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */ } #endif for (;;) { - c = (BYTE)p[si++]; + c = (BYTE)p[si++]; /* Get a byte */ if (c <= ' ') break; /* Break if end of the path name */ if (c == '/' || c == '\\') { /* Break if a separator is found */ while (p[si] == '/' || p[si] == '\\') si++; /* Skip duplicated separator if exist */ break; } - if (c == '.' || i >= ni) { /* End of body or over size? */ - if (ni == 11 || c != '.') return FR_INVALID_NAME; /* Over size or invalid dot */ - i = 8; ni = 11; /* Goto extension */ + if (c == '.' || i >= ni) { /* End of body or field overflow? */ + if (ni == 11 || c != '.') return FR_INVALID_NAME; /* Field overflow or invalid dot? */ + i = 8; ni = 11; /* Enter file extension field */ continue; } - if (c >= 0x80) { /* Extended character? */ -#ifdef _EXCVT - c = ExCvt[c - 0x80]; /* To upper extended characters (SBCS cfg) */ -#else -#if !_DF1S - return FR_INVALID_NAME; /* Reject extended characters (ASCII only cfg) */ -#endif -#endif +#if FF_CODE_PAGE == 0 + if (ExCvt && c >= 0x80) { /* Is SBC extended character? */ + c = ExCvt[c & 0x7F]; /* To upper SBC extended character */ + } +#elif FF_CODE_PAGE < 900 + if (c >= 0x80) { /* Is SBC extended character? */ + c = ExCvt[c & 0x7F]; /* To upper SBC extended character */ } - if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false at SBCS cfg.) */ +#endif + if (dbc_1st(c)) { /* Check if it is a DBC 1st byte */ d = (BYTE)p[si++]; /* Get 2nd byte */ - if (!IsDBCS2(d) || i >= ni - 1) return FR_INVALID_NAME; /* Reject invalid DBC */ + if (!dbc_2nd(d) || i >= ni - 1) return FR_INVALID_NAME; /* Reject invalid DBC */ sfn[i++] = c; sfn[i++] = d; } else { /* SBC */ @@ -2751,7 +3000,7 @@ FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */ sfn[NSFLAG] = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of the path */ return FR_OK; -#endif /* _USE_LFN != 0 */ +#endif /* FF_USE_LFN */ } @@ -2761,39 +3010,40 @@ FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */ /* 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 */ +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 ns; - _FDID *obj = &dp->obj; - FATFS *fs = obj->fs; + FATFS *fs = dp->obj.fs; -#if _FS_RPATH != 0 +#if FF_FS_RPATH != 0 if (*path != '/' && *path != '\\') { /* Without heading separator */ - obj->sclust = fs->cdir; /* Start from the current directory */ + dp->obj.sclust = fs->cdir; /* Start from current directory */ } else #endif { /* With heading separator */ while (*path == '/' || *path == '\\') path++; /* Strip heading separator */ - obj->sclust = 0; /* Start from the root directory */ + dp->obj.sclust = 0; /* Start from root directory */ } -#if _FS_EXFAT && _FS_RPATH != 0 - if (fs->fs_type == FS_EXFAT && obj->sclust) { /* Retrieve the sub-directory status if needed */ +#if FF_FS_EXFAT + dp->obj.n_frag = 0; /* Invalidate last fragment counter of the object */ +#if FF_FS_RPATH != 0 + if (fs->fs_type == FS_EXFAT && dp->obj.sclust) { /* exFAT: Retrieve the sub-directory's status */ DIR dj; - obj->c_scl = fs->cdc_scl; - obj->c_size = fs->cdc_size; - obj->c_ofs = fs->cdc_ofs; - res = load_obj_dir(&dj, obj); + dp->obj.c_scl = fs->cdc_scl; + dp->obj.c_size = fs->cdc_size; + dp->obj.c_ofs = fs->cdc_ofs; + res = load_obj_xdir(&dj, &dp->obj); if (res != FR_OK) return res; - obj->objsize = ld_dword(fs->dirbuf + XDIR_FileSize); - obj->stat = fs->dirbuf[XDIR_GenFlags] & 2; + dp->obj.objsize = ld_dword(fs->dirbuf + XDIR_FileSize); + dp->obj.stat = fs->dirbuf[XDIR_GenFlags] & 2; } +#endif #endif if ((UINT)*path < ' ') { /* Null path name is the origin directory itself */ @@ -2808,7 +3058,7 @@ FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */ 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, stay there */ + if (FF_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, stay there */ if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */ dp->fn[NSFLAG] = NS_NONAME; res = FR_OK; @@ -2820,21 +3070,19 @@ FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */ } if (ns & NS_LAST) break; /* Last segment matched. Function completed. */ /* Get into the sub-directory */ - if (!(obj->attr & AM_DIR)) { /* It is not a sub-directory and cannot follow */ + if (!(dp->obj.attr & AM_DIR)) { /* It is not a sub-directory and cannot follow */ res = FR_NO_PATH; break; } -#if _FS_EXFAT - if (fs->fs_type == FS_EXFAT) { - obj->c_scl = obj->sclust; /* Save containing directory information for next dir */ - obj->c_size = ((DWORD)obj->objsize & 0xFFFFFF00) | obj->stat; - obj->c_ofs = dp->blk_ofs; - obj->sclust = ld_dword(fs->dirbuf + XDIR_FstClus); /* Open next directory */ - obj->stat = fs->dirbuf[XDIR_GenFlags] & 2; - obj->objsize = ld_qword(fs->dirbuf + XDIR_FileSize); +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { /* Save containing directory information for next dir */ + dp->obj.c_scl = dp->obj.sclust; + dp->obj.c_size = ((DWORD)dp->obj.objsize & 0xFFFFFF00) | dp->obj.stat; + dp->obj.c_ofs = dp->blk_ofs; + init_alloc_info(fs, &dp->obj); /* Open next directory */ } else #endif { - obj->sclust = ld_clust(fs, fs->win + dp->dptr % SS(fs)); /* Open next directory */ + dp->obj.sclust = ld_clust(fs, fs->win + dp->dptr % SS(fs)); /* Open next directory */ } } } @@ -2849,100 +3097,111 @@ FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */ /* 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 */ +static int get_ldnumber ( /* Returns logical drive number (-1:invalid drive number or null pointer) */ + 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}; + TCHAR tc; + int i, vol = -1; +#if FF_STR_VOLUME_ID /* Find string volume ID */ const char *sp; char c; - TCHAR tc; #endif + tt = tp = *path; + if (!tp) return vol; /* Invalid path name? */ + do tc = *tt++; while ((UINT)tc >= (FF_USE_LFN ? ' ' : '!') && tc != ':'); /* Find a colon in the path */ - 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; - } - } + if (tc == ':') { /* DOS/Windows style volume ID? */ + i = FF_VOLUMES; + if (IsDigit(*tp) && tp + 2 == tt) { /* Is there a numeric volume ID + colon? */ + i = (int)*tp - '0'; /* Get the LD number */ + } +#if FF_STR_VOLUME_ID == 1 /* Arbitrary string is enabled */ + else { + i = 0; + do { + sp = VolumeStr[i]; tp = *path; /* This string volume ID and path name */ + do { /* Compare the volume ID with path name */ + c = *sp++; tc = *tp++; + if (IsLower(c)) c -= 0x20; + if (IsLower(tc)) tc -= 0x20; + } while (c && (TCHAR)c == tc); + } while ((c || tp != tt) && ++i < FF_VOLUMES); /* Repeat for each id until pattern match */ + } #endif + if (i < FF_VOLUMES) { /* If a volume ID is found, get the drive number and strip it */ + vol = i; /* Drive number */ + *path = tt; /* Snip the drive prefix off */ + } + return vol; + } +#if FF_STR_VOLUME_ID == 2 /* Unix style volume ID is enabled */ + if (*tp == '/') { + i = 0; + do { + sp = VolumeStr[i]; tp = *path; /* This string volume ID and path name */ + do { /* Compare the volume ID with path name */ + c = *sp++; tc = *(++tp); + if (IsLower(c)) c -= 0x20; + if (IsLower(tc)) tc -= 0x20; + } while (c && (TCHAR)c == tc); + } while ((c || (tc != '/' && (UINT)tc >= (FF_USE_LFN ? ' ' : '!'))) && ++i < FF_VOLUMES); /* Repeat for each ID until pattern match */ + if (i < FF_VOLUMES) { /* If a volume ID is found, get the drive number and strip it */ + vol = i; /* Drive number */ + *path = tp; /* Snip the drive prefix off */ return vol; } -#if _FS_RPATH != 0 && _VOLUMES >= 2 - vol = CurrVol; /* Current drive */ + } +#endif + /* No drive prefix is found */ +#if FF_FS_RPATH != 0 + vol = CurrVol; /* Default drive is current drive */ #else - vol = 0; /* Drive 0 */ + vol = 0; /* Default drive is 0 */ #endif - } - return vol; + return vol; /* Return the default drive */ } /*-----------------------------------------------------------------------*/ -/* Load a sector and check if it is an FAT boot sector */ +/* Load a sector and check if it is an FAT VBR */ /*-----------------------------------------------------------------------*/ -static -BYTE check_fs ( /* 0:FAT, 1:exFAT, 2:Valid BS but not FAT, 3:Not a BS, 4:Disk error */ - FATFS* fs, /* File system object */ - DWORD sect /* Sector# (lba) to check if it is an FAT-VBR or not */ +static BYTE check_fs ( /* 0:FAT, 1:exFAT, 2:Valid BS but not FAT, 3:Not a BS, 4:Disk error */ + FATFS* fs, /* Filesystem object */ + DWORD sect /* Sector# (lba) to load and check if it is an FAT-VBR or not */ ) { fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */ if (move_window(fs, sect) != FR_OK) return 4; /* Load boot record */ - if (ld_word(fs->win + BS_55AA) != 0xAA55) return 3; /* Check boot record signature (always placed at offset 510 even if the sector size is >512) */ + if (ld_word(fs->win + BS_55AA) != 0xAA55) return 3; /* Check boot record signature (always here regardless of the sector size) */ - if (fs->win[BS_JmpBoot] == 0xE9 || (fs->win[BS_JmpBoot] == 0xEB && fs->win[BS_JmpBoot + 2] == 0x90)) { - if ((ld_dword(fs->win + BS_FilSysType) & 0xFFFFFF) == 0x544146) return 0; /* Check "FAT" string */ - if (ld_dword(fs->win + BS_FilSysType32) == 0x33544146) return 0; /* Check "FAT3" string */ - } -#if _FS_EXFAT - if (!mem_cmp(fs->win + BS_JmpBoot, "\xEB\x76\x90" "EXFAT ", 11)) return 1; +#if FF_FS_EXFAT + if (!mem_cmp(fs->win + BS_JmpBoot, "\xEB\x76\x90" "EXFAT ", 11)) return 1; /* Check if exFAT VBR */ #endif - return 2; + if (fs->win[BS_JmpBoot] == 0xE9 || fs->win[BS_JmpBoot] == 0xEB || fs->win[BS_JmpBoot] == 0xE8) { /* Valid JumpBoot code? */ + if (!mem_cmp(fs->win + BS_FilSysType, "FAT", 3)) return 0; /* Is it an FAT VBR? */ + if (!mem_cmp(fs->win + BS_FilSysType32, "FAT32", 5)) return 0; /* Is it an FAT32 VBR? */ + } + return 2; /* Valid BS but not FAT */ } /*-----------------------------------------------------------------------*/ -/* Find logical drive and check if the volume is mounted */ +/* Determine logical drive number and mount the volume if needed */ /*-----------------------------------------------------------------------*/ -static -FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */ - const TCHAR** path, /* Pointer to pointer to the path name (drive number) */ - FATFS** rfs, /* Pointer to pointer to the found file system object */ - BYTE mode /* !=0: Check write protection for write access */ +static FRESULT find_volume ( /* FR_OK(0): successful, !=0: an error occurred */ + const TCHAR** path, /* Pointer to pointer to the path name (drive number) */ + FATFS** rfs, /* Pointer to pointer to the found filesystem object */ + BYTE mode /* !=0: Check write protection for write access */ ) { BYTE fmt, *pt; @@ -2959,71 +3218,74 @@ FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */ 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 */ + /* Check if the filesystem object is valid or not */ + fs = FatFs[vol]; /* Get pointer to the filesystem object */ + if (!fs) return FR_NOT_ENABLED; /* Is the filesystem object available? */ +#if FF_FS_REENTRANT + if (!lock_fs(fs)) return FR_TIMEOUT; /* Lock the volume */ +#endif + *rfs = fs; /* Return pointer to the filesystem object */ mode &= (BYTE)~FA_READ; /* Desired access mode, write access or not */ - if (fs->fs_type) { /* If the volume has been mounted */ - stat = disk_status(fs->drv); + if (fs->fs_type != 0) { /* If the volume has been mounted */ + stat = disk_status(fs->pdrv); if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */ - if (!_FS_READONLY && mode && (stat & STA_PROTECT)) { /* Check write protection if needed */ + if (!FF_FS_READONLY && mode && (stat & STA_PROTECT)) { /* Check write protection if needed */ return FR_WRITE_PROTECTED; } - return FR_OK; /* The file system object is valid */ + return FR_OK; /* The filesystem object is valid */ } } - /* The file system object is not valid. */ - /* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */ + /* The filesystem object is not valid. */ + /* Following code attempts to mount the volume. (analyze BPB and initialize the filesystem 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 */ + fs->fs_type = 0; /* Clear the filesystem object */ + fs->pdrv = LD2PD(vol); /* Bind the logical drive and a physical drive */ + stat = disk_initialize(fs->pdrv); /* 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 && mode && (stat & STA_PROTECT)) { /* Check disk write protection if needed */ + if (!FF_FS_READONLY && mode && (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) return FR_DISK_ERR; - if (SS(fs) > _MAX_SS || SS(fs) < _MIN_SS || (SS(fs) & (SS(fs) - 1))) return FR_DISK_ERR; +#if FF_MAX_SS != FF_MIN_SS /* Get sector size (multiple sector size cfg only) */ + if (disk_ioctl(fs->pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK) return FR_DISK_ERR; + if (SS(fs) > FF_MAX_SS || SS(fs) < FF_MIN_SS || (SS(fs) & (SS(fs) - 1))) return FR_DISK_ERR; #endif - /* Find an FAT partition on the drive. Supports only generic partitioning, FDISK and SFD. */ + + /* Find an FAT partition on the drive. Supports only generic partitioning rules, FDISK and SFD. */ bsect = 0; fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT-VBR as SFD */ if (fmt == 2 || (fmt < 2 && LD2PT(vol) != 0)) { /* Not an FAT-VBR or forced partition number */ - for (i = 0; i < 4; i++) { /* Get partition offset */ + for (i = 0; i < 4; i++) { /* Get partition offset */ pt = fs->win + (MBR_Table + i * SZ_PTE); br[i] = pt[PTE_System] ? ld_dword(pt + PTE_StLba) : 0; } - i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */ - if (i) i--; - do { /* Find an FAT volume */ + i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */ + if (i != 0) i--; + do { /* Find an FAT volume */ bsect = br[i]; fmt = bsect ? check_fs(fs, bsect) : 3; /* Check the partition */ - } while (!LD2PT(vol) && fmt >= 2 && ++i < 4); + } while (LD2PT(vol) == 0 && fmt >= 2 && ++i < 4); } if (fmt == 4) return FR_DISK_ERR; /* An error occured in the disk I/O layer */ if (fmt >= 2) return FR_NO_FILESYSTEM; /* No FAT volume is found */ - /* An FAT volume is found. Following code initializes the file system object */ + /* An FAT volume is found (bsect). Following code initializes the filesystem object */ -#if _FS_EXFAT +#if FF_FS_EXFAT if (fmt == 1) { QWORD maxlba; for (i = BPB_ZeroedEx; i < BPB_ZeroedEx + 53 && fs->win[i] == 0; i++) ; /* Check zero filler */ if (i < BPB_ZeroedEx + 53) return FR_NO_FILESYSTEM; - if (ld_word(fs->win + BPB_FSVerEx) != 0x100) return FR_NO_FILESYSTEM; /* Check exFAT revision (Must be 1.0) */ + if (ld_word(fs->win + BPB_FSVerEx) != 0x100) return FR_NO_FILESYSTEM; /* Check exFAT version (must be version 1.0) */ - if (1 << fs->win[BPB_BytsPerSecEx] != SS(fs)) /* (BPB_BytsPerSecEx must be equal to the physical sector size) */ + if (1 << fs->win[BPB_BytsPerSecEx] != SS(fs)) { /* (BPB_BytsPerSecEx must be equal to the physical sector size) */ return FR_NO_FILESYSTEM; + } maxlba = ld_qword(fs->win + BPB_TotSecEx) + bsect; /* Last LBA + 1 of the volume */ if (maxlba >= 0x100000000) return FR_NO_FILESYSTEM; /* (It cannot be handled in 32-bit LBA) */ @@ -3048,105 +3310,107 @@ FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */ fs->dirbase = ld_dword(fs->win + BPB_RootClusEx); /* Check if bitmap location is in assumption (at the first cluster) */ - if (move_window(fs, clust2sect(fs, fs->dirbase)) != FR_OK) return FR_DISK_ERR; + if (move_window(fs, clst2sect(fs, fs->dirbase)) != FR_OK) return FR_DISK_ERR; for (i = 0; i < SS(fs); i += SZDIRE) { if (fs->win[i] == 0x81 && ld_dword(fs->win + i + 20) == 2) break; /* 81 entry with cluster #2? */ } if (i == SS(fs)) return FR_NO_FILESYSTEM; -#if !_FS_READONLY +#if !FF_FS_READONLY fs->last_clst = fs->free_clst = 0xFFFFFFFF; /* Initialize cluster allocation information */ #endif fmt = FS_EXFAT; /* FAT sub-type */ } else -#endif /* _FS_EXFAT */ +#endif /* FF_FS_EXFAT */ { if (ld_word(fs->win + BPB_BytsPerSec) != SS(fs)) return FR_NO_FILESYSTEM; /* (BPB_BytsPerSec must be equal to the physical sector size) */ - fasize = ld_word(fs->win + BPB_FATSz16); /* Number of sectors per FAT */ + fasize = ld_word(fs->win + BPB_FATSz16); /* Number of sectors per FAT */ if (fasize == 0) fasize = ld_dword(fs->win + BPB_FATSz32); fs->fsize = fasize; - fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FATs */ + fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FATs */ if (fs->n_fats != 1 && fs->n_fats != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */ - fasize *= fs->n_fats; /* Number of sectors for FAT area */ + fasize *= fs->n_fats; /* Number of sectors for FAT area */ - fs->csize = fs->win[BPB_SecPerClus]; /* Cluster size */ + fs->csize = fs->win[BPB_SecPerClus]; /* Cluster size */ if (fs->csize == 0 || (fs->csize & (fs->csize - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */ fs->n_rootdir = ld_word(fs->win + BPB_RootEntCnt); /* Number of root directory entries */ if (fs->n_rootdir % (SS(fs) / SZDIRE)) return FR_NO_FILESYSTEM; /* (Must be sector aligned) */ - tsect = ld_word(fs->win + BPB_TotSec16); /* Number of sectors on the volume */ + tsect = ld_word(fs->win + BPB_TotSec16); /* Number of sectors on the volume */ if (tsect == 0) tsect = ld_dword(fs->win + BPB_TotSec32); - nrsv = ld_word(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */ - if (nrsv == 0) return FR_NO_FILESYSTEM; /* (Must not be 0) */ + nrsv = ld_word(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */ + if (nrsv == 0) return FR_NO_FILESYSTEM; /* (Must not be 0) */ /* Determine the FAT sub type */ sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZDIRE); /* RSV + FAT + DIR */ - if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */ - nclst = (tsect - sysect) / fs->csize; /* Number of clusters */ - if (nclst == 0) return FR_NO_FILESYSTEM; /* (Invalid volume size) */ - fmt = FS_FAT32; + if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */ + nclst = (tsect - sysect) / fs->csize; /* Number of clusters */ + if (nclst == 0) return FR_NO_FILESYSTEM; /* (Invalid volume size) */ + fmt = 0; + if (nclst <= MAX_FAT32) fmt = FS_FAT32; if (nclst <= MAX_FAT16) fmt = FS_FAT16; if (nclst <= MAX_FAT12) fmt = FS_FAT12; + if (fmt == 0) return FR_NO_FILESYSTEM; /* 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 */ + 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 (ld_word(fs->win + BPB_FSVer32) != 0) return FR_NO_FILESYSTEM; /* (Must be FAT32 revision 0.0) */ - if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */ + if (fs->n_rootdir != 0) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */ fs->dirbase = ld_dword(fs->win + BPB_RootClus32); /* Root directory start cluster */ - szbfat = fs->n_fatent * 4; /* (Needed FAT size) */ + szbfat = fs->n_fatent * 4; /* (Needed FAT size) */ } else { - if (fs->n_rootdir == 0) 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) */ + if (fs->n_rootdir == 0) 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)) return FR_NO_FILESYSTEM; /* (BPB_FATSz must not be less than the size needed) */ -#if !_FS_READONLY - /* Get FSINFO if available */ +#if !FF_FS_READONLY + /* Get FSInfo if available */ fs->last_clst = fs->free_clst = 0xFFFFFFFF; /* Initialize cluster allocation information */ fs->fsi_flag = 0x80; -#if (_FS_NOFSINFO & 3) != 3 - if (fmt == FS_FAT32 /* Enable FSINFO only if FAT32 and BPB_FSInfo32 == 1 */ +#if (FF_FS_NOFSINFO & 3) != 3 + if (fmt == FS_FAT32 /* Allow to update FSInfo only if BPB_FSInfo32 == 1 */ && ld_word(fs->win + BPB_FSInfo32) == 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 */ + 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 +#if (FF_FS_NOFSINFO & 1) == 0 fs->free_clst = ld_dword(fs->win + FSI_Free_Count); #endif -#if (_FS_NOFSINFO & 2) == 0 +#if (FF_FS_NOFSINFO & 2) == 0 fs->last_clst = ld_dword(fs->win + FSI_Nxt_Free); #endif } } -#endif /* (_FS_NOFSINFO & 3) != 3 */ -#endif /* !_FS_READONLY */ +#endif /* (FF_FS_NOFSINFO & 3) != 3 */ +#endif /* !FF_FS_READONLY */ } - fs->fs_type = fmt; /* FAT sub-type */ - fs->id = ++Fsid; /* File system mount ID */ -#if _USE_LFN == 1 + fs->fs_type = fmt; /* FAT sub-type */ + fs->id = ++Fsid; /* Volume mount ID */ +#if FF_USE_LFN == 1 fs->lfnbuf = LfnBuf; /* Static LFN working buffer */ -#if _FS_EXFAT - fs->dirbuf = DirBuf; /* Static directory block working buuffer */ +#if FF_FS_EXFAT + fs->dirbuf = DirBuf; /* Static directory block scratchpad buuffer */ #endif #endif -#if _FS_RPATH != 0 - fs->cdir = 0; /* Initialize current directory */ +#if FF_FS_RPATH != 0 + fs->cdir = 0; /* Initialize current directory */ #endif -#if _FS_LOCK != 0 /* Clear file lock semaphores */ +#if FF_FS_LOCK != 0 /* Clear file lock semaphores */ clear_lock(fs); #endif return FR_OK; @@ -3159,23 +3423,32 @@ FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */ /* Check if the file/directory object is valid or not */ /*-----------------------------------------------------------------------*/ -static -FRESULT validate ( /* Returns FR_OK or FR_INVALID_OBJECT */ - _FDID* obj, /* Pointer to the _OBJ, the 1st member in the FIL/DIR object, to check validity */ - FATFS** fs /* Pointer to pointer to the owner file system object to return */ +static FRESULT validate ( /* Returns FR_OK or FR_INVALID_OBJECT */ + FFOBJID* obj, /* Pointer to the FFOBJID, the 1st member in the FIL/DIR object, to check validity */ + FATFS** rfs /* Pointer to pointer to the owner filesystem object to return */ ) { - FRESULT res; + FRESULT res = FR_INVALID_OBJECT; - if (!obj || !obj->fs || !obj->fs->fs_type || obj->fs->id != obj->id || (disk_status(obj->fs->drv) & STA_NOINIT)) { - *fs = 0; /* The object is invalid */ - res = FR_INVALID_OBJECT; - } else { - *fs = obj->fs; /* Owner file sytem object */ - ENTER_FF(obj->fs); /* Lock file system */ - res = FR_OK; + if (obj && obj->fs && obj->fs->fs_type && obj->id == obj->fs->id) { /* Test if the object is valid */ +#if FF_FS_REENTRANT + if (lock_fs(obj->fs)) { /* Obtain the filesystem object */ + if (!(disk_status(obj->fs->pdrv) & STA_NOINIT)) { /* Test if the phsical drive is kept initialized */ + res = FR_OK; + } else { + unlock_fs(obj->fs, FR_OK); + } + } else { + res = FR_TIMEOUT; + } +#else + if (!(disk_status(obj->fs->pdrv) & STA_NOINIT)) { /* Test if the phsical drive is kept initialized */ + res = FR_OK; + } +#endif } + *rfs = (res == FR_OK) ? obj->fs : 0; /* Corresponding filesystem object */ return res; } @@ -3195,7 +3468,7 @@ FRESULT validate ( /* Returns FR_OK or FR_INVALID_OBJECT */ /*-----------------------------------------------------------------------*/ FRESULT f_mount ( - FATFS* fs, /* Pointer to the file system object (NULL:unmount)*/ + FATFS* fs, /* Pointer to the filesystem object (NULL:unmount)*/ const TCHAR* path, /* Logical drive number to be mounted/unmounted */ BYTE opt /* Mode option 0:Do not mount (delayed mount), 1:Mount immediately */ ) @@ -3212,10 +3485,10 @@ FRESULT f_mount ( cfs = FatFs[vol]; /* Pointer to fs object */ if (cfs) { -#if _FS_LOCK != 0 +#if FF_FS_LOCK != 0 clear_lock(cfs); #endif -#if _FS_REENTRANT /* Discard sync object of the current volume */ +#if FF_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 */ @@ -3223,13 +3496,13 @@ FRESULT f_mount ( if (fs) { fs->fs_type = 0; /* Clear new fs object */ -#if _FS_REENTRANT /* Create sync object for the new volume */ +#if FF_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 */ + if (opt == 0) return FR_OK; /* Do not mount now, it will be mounted later */ res = find_volume(&path, &fs, 0); /* Force mounted the volume */ LEAVE_FF(fs, res); @@ -3251,7 +3524,7 @@ FRESULT f_open ( FRESULT res; DIR dj; FATFS *fs; -#if !_FS_READONLY +#if !FF_FS_READONLY DWORD dw, cl, bcs, clst, sc; FSIZE_t ofs; #endif @@ -3260,79 +3533,71 @@ FRESULT f_open ( if (!fp) return FR_INVALID_OBJECT; - /* Get logical drive */ - mode &= _FS_READONLY ? FA_READ : FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_CREATE_NEW | FA_OPEN_ALWAYS | FA_OPEN_APPEND | FA_SEEKEND; + /* Get logical drive number */ + mode &= FF_FS_READONLY ? FA_READ : FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_CREATE_NEW | FA_OPEN_ALWAYS | FA_OPEN_APPEND; res = find_volume(&path, &fs, mode); if (res == FR_OK) { dj.obj.fs = fs; INIT_NAMBUF(fs); res = follow_path(&dj, path); /* Follow the file path */ -#if !_FS_READONLY /* R/W configuration */ +#if !FF_FS_READONLY /* Read/Write configuration */ if (res == FR_OK) { if (dj.fn[NSFLAG] & NS_NONAME) { /* Origin directory itself? */ res = FR_INVALID_NAME; } -#if _FS_LOCK != 0 +#if FF_FS_LOCK != 0 else { - res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0); + res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0); /* Check if the file can be used */ } #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 != 0 + if (res == FR_NO_FILE) { /* There is no file to open, create a new entry */ +#if FF_FS_LOCK != 0 res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES; #else res = dir_register(&dj); #endif + } mode |= FA_CREATE_ALWAYS; /* File is created */ } - else { /* Any object is already existing */ + else { /* Any object with the same name is already existing */ if (dj.obj.attr & (AM_RDO | AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */ res = FR_DENIED; } else { if (mode & FA_CREATE_NEW) res = FR_EXIST; /* Cannot create as new file */ } } - if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */ - dw = GET_FATTIME(); -#if _FS_EXFAT + if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate the file if overwrite mode */ +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { /* Get current allocation info */ fp->obj.fs = fs; - fp->obj.sclust = ld_dword(fs->dirbuf + XDIR_FstClus); - fp->obj.objsize = ld_qword(fs->dirbuf + XDIR_FileSize); - fp->obj.stat = fs->dirbuf[XDIR_GenFlags] & 2; - /* Initialize directory entry block */ - st_dword(fs->dirbuf + XDIR_CrtTime, dw); /* Set created time */ - fs->dirbuf[XDIR_CrtTime10] = 0; - st_dword(fs->dirbuf + XDIR_ModTime, dw); /* Set modified time */ - fs->dirbuf[XDIR_ModTime10] = 0; - fs->dirbuf[XDIR_Attr] = AM_ARC; /* Reset attribute */ - st_dword(fs->dirbuf + XDIR_FstClus, 0); /* Reset file allocation info */ - st_qword(fs->dirbuf + XDIR_FileSize, 0); - st_qword(fs->dirbuf + XDIR_ValidFileSize, 0); + init_alloc_info(fs, &fp->obj); + /* Set directory entry block initial state */ + mem_set(fs->dirbuf + 2, 0, 30); /* Clear 85 entry except for NumSec */ + mem_set(fs->dirbuf + 38, 0, 26); /* Clear C0 entry except for NumName and NameHash */ + fs->dirbuf[XDIR_Attr] = AM_ARC; + st_dword(fs->dirbuf + XDIR_CrtTime, GET_FATTIME()); fs->dirbuf[XDIR_GenFlags] = 1; res = store_xdir(&dj); - if (res == FR_OK && fp->obj.sclust) { /* Remove the cluster chain if exist */ + if (res == FR_OK && fp->obj.sclust != 0) { /* Remove the cluster chain if exist */ res = remove_chain(&fp->obj, fp->obj.sclust, 0); fs->last_clst = fp->obj.sclust - 1; /* Reuse the cluster hole */ } } else #endif { - /* Clean directory info */ - st_dword(dj.dir + DIR_CrtTime, dw); /* Set created time */ - st_dword(dj.dir + DIR_ModTime, dw); /* Set modified time */ + /* Set directory entry initial state */ + cl = ld_clust(fs, dj.dir); /* Get current cluster chain */ + st_dword(dj.dir + DIR_CrtTime, GET_FATTIME()); /* Set created time */ dj.dir[DIR_Attr] = AM_ARC; /* Reset attribute */ - cl = ld_clust(fs, dj.dir); /* Get cluster chain */ st_clust(fs, dj.dir, 0); /* Reset file allocation info */ st_dword(dj.dir + DIR_FileSize, 0); fs->wflag = 1; - - if (cl) { /* Remove the cluster chain if exist */ + if (cl != 0) { /* Remove the cluster chain if exist */ dw = fs->winsect; res = remove_chain(&dj.obj, cl, 0); if (res == FR_OK) { @@ -3344,32 +3609,31 @@ FRESULT f_open ( } } else { /* Open an existing file */ - if (res == FR_OK) { /* Following succeeded */ - if (dj.obj.attr & AM_DIR) { /* It is a directory */ + if (res == FR_OK) { /* Is the object exsiting? */ + if (dj.obj.attr & AM_DIR) { /* File open against a directory */ res = FR_NO_FILE; } else { - if ((mode & FA_WRITE) && (dj.obj.attr & AM_RDO)) { /* R/O violation */ + if ((mode & FA_WRITE) && (dj.obj.attr & AM_RDO)) { /* Write mode open against R/O file */ res = FR_DENIED; } } } } if (res == FR_OK) { - if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */ - mode |= FA_MODIFIED; + if (mode & FA_CREATE_ALWAYS) mode |= FA_MODIFIED; /* Set file change flag if created or overwritten */ fp->dir_sect = fs->winsect; /* Pointer to the directory entry */ fp->dir_ptr = dj.dir; -#if _FS_LOCK != 0 - fp->obj.lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0); - if (!fp->obj.lockid) res = FR_INT_ERR; +#if FF_FS_LOCK != 0 + fp->obj.lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0); /* Lock the file for this session */ + if (fp->obj.lockid == 0) res = FR_INT_ERR; #endif } #else /* R/O configuration */ if (res == FR_OK) { - if (dj.fn[NSFLAG] & NS_NONAME) { /* Origin directory itself? */ + if (dj.fn[NSFLAG] & NS_NONAME) { /* Is it origin directory itself? */ res = FR_INVALID_NAME; } else { - if (dj.obj.attr & AM_DIR) { /* It is a directory */ + if (dj.obj.attr & AM_DIR) { /* Is it a directory? */ res = FR_NO_FILE; } } @@ -3377,21 +3641,19 @@ FRESULT f_open ( #endif if (res == FR_OK) { -#if _FS_EXFAT +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { - fp->obj.sclust = ld_dword(fs->dirbuf + XDIR_FstClus); /* Get allocation info */ - fp->obj.objsize = ld_qword(fs->dirbuf + XDIR_FileSize); - fp->obj.stat = fs->dirbuf[XDIR_GenFlags] & 2; - fp->obj.c_scl = dj.obj.sclust; + fp->obj.c_scl = dj.obj.sclust; /* Get containing directory info */ fp->obj.c_size = ((DWORD)dj.obj.objsize & 0xFFFFFF00) | dj.obj.stat; fp->obj.c_ofs = dj.blk_ofs; + init_alloc_info(fs, &fp->obj); } else #endif { - fp->obj.sclust = ld_clust(fs, dj.dir); /* Get allocation info */ + fp->obj.sclust = ld_clust(fs, dj.dir); /* Get object allocation info */ fp->obj.objsize = ld_dword(dj.dir + DIR_FileSize); } -#if _USE_FASTSEEK +#if FF_USE_FASTSEEK fp->cltbl = 0; /* Disable fast seek mode */ #endif fp->obj.fs = fs; /* Validate the file object */ @@ -3400,9 +3662,9 @@ FRESULT f_open ( fp->err = 0; /* Clear error flag */ fp->sect = 0; /* Invalidate current data sector */ fp->fptr = 0; /* Set file pointer top of the file */ -#if !_FS_READONLY -#if !_FS_TINY - mem_set(fp->buf, 0, _MAX_SS); /* Clear sector buffer */ +#if !FF_FS_READONLY +#if !FF_FS_TINY + mem_set(fp->buf, 0, FF_MAX_SS); /* Clear sector buffer */ #endif if ((mode & FA_SEEKEND) && fp->obj.objsize > 0) { /* Seek to end of file if FA_OPEN_APPEND is specified */ fp->fptr = fp->obj.objsize; /* Offset to seek */ @@ -3415,12 +3677,12 @@ FRESULT f_open ( } fp->clust = clst; if (res == FR_OK && ofs % SS(fs)) { /* Fill sector buffer if not on the sector boundary */ - if ((sc = clust2sect(fs, clst)) == 0) { + if ((sc = clst2sect(fs, clst)) == 0) { res = FR_INT_ERR; } else { fp->sect = sc + (DWORD)(ofs / SS(fs)); -#if !_FS_TINY - if (disk_read(fs->drv, fp->buf, fp->sect, 1) != RES_OK) res = FR_DISK_ERR; +#if !FF_FS_TINY + if (disk_read(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) res = FR_DISK_ERR; #endif } } @@ -3465,15 +3727,15 @@ FRESULT f_read ( remain = fp->obj.objsize - 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) { + for ( ; btr; /* Repeat until btr bytes read */ + btr -= rcnt, *br += rcnt, rbuff += rcnt, fp->fptr += rcnt) { if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */ csect = (UINT)(fp->fptr / SS(fs) & (fs->csize - 1)); /* Sector offset in the cluster */ if (csect == 0) { /* On the cluster boundary? */ if (fp->fptr == 0) { /* On the top of the file? */ clst = fp->obj.sclust; /* Follow cluster chain from the origin */ } else { /* Middle or end of the file */ -#if _USE_FASTSEEK +#if FF_USE_FASTSEEK if (fp->cltbl) { clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */ } else @@ -3486,17 +3748,17 @@ FRESULT f_read ( if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR); fp->clust = clst; /* Update current cluster */ } - sect = clust2sect(fs, fp->clust); /* Get current sector */ - if (!sect) ABORT(fs, FR_INT_ERR); + sect = clst2sect(fs, fp->clust); /* Get current sector */ + if (sect == 0) ABORT(fs, FR_INT_ERR); sect += csect; cc = btr / SS(fs); /* When remaining bytes >= sector size, */ - if (cc) { /* Read maximum contiguous sectors directly */ + if (cc > 0) { /* Read maximum contiguous sectors directly */ if (csect + cc > fs->csize) { /* Clip at cluster boundary */ cc = fs->csize - csect; } - if (disk_read(fs->drv, rbuff, sect, cc) != RES_OK) ABORT(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 (disk_read(fs->pdrv, rbuff, sect, cc) != RES_OK) ABORT(fs, FR_DISK_ERR); +#if !FF_FS_READONLY && FF_FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */ +#if FF_FS_TINY if (fs->wflag && fs->winsect - sect < cc) { mem_cpy(rbuff + ((fs->winsect - sect) * SS(fs)), fs->win, SS(fs)); } @@ -3509,22 +3771,22 @@ FRESULT f_read ( rcnt = SS(fs) * cc; /* Number of bytes transferred */ continue; } -#if !_FS_TINY +#if !FF_FS_TINY if (fp->sect != sect) { /* Load data sector if not in cache */ -#if !_FS_READONLY +#if !FF_FS_READONLY if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */ - if (disk_write(fs->drv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); fp->flag &= (BYTE)~FA_DIRTY; } #endif - if (disk_read(fs->drv, fp->buf, sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Fill sector cache */ + if (disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Fill sector cache */ } #endif fp->sect = sect; } rcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes left in the sector */ if (rcnt > btr) rcnt = btr; /* Clip it by btr if needed */ -#if _FS_TINY +#if FF_FS_TINY if (move_window(fs, fp->sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window */ mem_cpy(rbuff, fs->win + fp->fptr % SS(fs), rcnt); /* Extract partial sector */ #else @@ -3538,7 +3800,7 @@ FRESULT f_read ( -#if !_FS_READONLY +#if !FF_FS_READONLY /*-----------------------------------------------------------------------*/ /* Write File */ /*-----------------------------------------------------------------------*/ @@ -3562,13 +3824,13 @@ FRESULT f_write ( if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); /* Check validity */ if (!(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */ - /* Check fptr wrap-around (file size cannot reach 4GiB on FATxx) */ - if ((!_FS_EXFAT || fs->fs_type != FS_EXFAT) && (DWORD)(fp->fptr + btw) < (DWORD)fp->fptr) { + /* Check fptr wrap-around (file size cannot reach 4 GiB at FAT volume) */ + if ((!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) && (DWORD)(fp->fptr + btw) < (DWORD)fp->fptr) { btw = (UINT)(0xFFFFFFFF - (DWORD)fp->fptr); } for ( ; btw; /* Repeat until all data written */ - wbuff += wcnt, fp->fptr += wcnt, fp->obj.objsize = (fp->fptr > fp->obj.objsize) ? fp->fptr : fp->obj.objsize, *bw += wcnt, btw -= wcnt) { + btw -= wcnt, *bw += wcnt, wbuff += wcnt, fp->fptr += wcnt, fp->obj.objsize = (fp->fptr > fp->obj.objsize) ? fp->fptr : fp->obj.objsize) { if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */ csect = (UINT)(fp->fptr / SS(fs)) & (fs->csize - 1); /* Sector offset in the cluster */ if (csect == 0) { /* On the cluster boundary? */ @@ -3578,7 +3840,7 @@ FRESULT f_write ( clst = create_chain(&fp->obj, 0); /* create a new cluster chain */ } } else { /* On the middle or end of the file */ -#if _USE_FASTSEEK +#if FF_USE_FASTSEEK if (fp->cltbl) { clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */ } else @@ -3593,25 +3855,25 @@ FRESULT f_write ( fp->clust = clst; /* Update current cluster */ if (fp->obj.sclust == 0) fp->obj.sclust = clst; /* Set start cluster if the first write */ } -#if _FS_TINY +#if FF_FS_TINY if (fs->winsect == fp->sect && sync_window(fs) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Write-back sector cache */ #else if (fp->flag & FA_DIRTY) { /* Write-back sector cache */ - if (disk_write(fs->drv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); fp->flag &= (BYTE)~FA_DIRTY; } #endif - sect = clust2sect(fs, fp->clust); /* Get current sector */ - if (!sect) ABORT(fs, FR_INT_ERR); + sect = clst2sect(fs, fp->clust); /* Get current sector */ + if (sect == 0) ABORT(fs, FR_INT_ERR); sect += csect; cc = btw / SS(fs); /* When remaining bytes >= sector size, */ - if (cc) { /* Write maximum contiguous sectors directly */ + if (cc > 0) { /* Write maximum contiguous sectors directly */ if (csect + cc > fs->csize) { /* Clip at cluster boundary */ cc = fs->csize - csect; } - if (disk_write(fs->drv, wbuff, sect, cc) != RES_OK) ABORT(fs, FR_DISK_ERR); -#if _FS_MINIMIZE <= 2 -#if _FS_TINY + if (disk_write(fs->pdrv, wbuff, sect, cc) != RES_OK) ABORT(fs, FR_DISK_ERR); +#if FF_FS_MINIMIZE <= 2 +#if FF_FS_TINY if (fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */ mem_cpy(fs->win, wbuff + ((fs->winsect - sect) * SS(fs)), SS(fs)); fs->wflag = 0; @@ -3626,7 +3888,7 @@ FRESULT f_write ( wcnt = SS(fs) * cc; /* Number of bytes transferred */ continue; } -#if _FS_TINY +#if FF_FS_TINY if (fp->fptr >= fp->obj.objsize) { /* Avoid silly cache filling on the growing edge */ if (sync_window(fs) != FR_OK) ABORT(fs, FR_DISK_ERR); fs->winsect = sect; @@ -3634,7 +3896,7 @@ FRESULT f_write ( #else if (fp->sect != sect && /* Fill sector cache with file data */ fp->fptr < fp->obj.objsize && - disk_read(fs->drv, fp->buf, sect, 1) != RES_OK) { + disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) { ABORT(fs, FR_DISK_ERR); } #endif @@ -3642,7 +3904,7 @@ FRESULT f_write ( } wcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes left in the sector */ if (wcnt > btw) wcnt = btw; /* Clip it by btw if needed */ -#if _FS_TINY +#if FF_FS_TINY if (move_window(fs, fp->sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window */ mem_cpy(fs->win + fp->fptr % SS(fs), wbuff, wcnt); /* Fit data to the sector */ fs->wflag = 1; @@ -3672,31 +3934,34 @@ FRESULT f_sync ( FATFS *fs; DWORD tm; BYTE *dir; - DEF_NAMBUF res = validate(&fp->obj, &fs); /* Check validity of the file object */ if (res == FR_OK) { if (fp->flag & FA_MODIFIED) { /* Is there any change to the file? */ -#if !_FS_TINY +#if !FF_FS_TINY if (fp->flag & FA_DIRTY) { /* Write-back cached data if needed */ - if (disk_write(fs->drv, fp->buf, fp->sect, 1) != RES_OK) LEAVE_FF(fs, FR_DISK_ERR); + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) LEAVE_FF(fs, FR_DISK_ERR); fp->flag &= (BYTE)~FA_DIRTY; } #endif /* Update the directory entry */ tm = GET_FATTIME(); /* Modified time */ -#if _FS_EXFAT +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { - res = fill_fat_chain(&fp->obj); /* Create FAT chain if needed */ + res = fill_first_frag(&fp->obj); /* Fill first fragment on the FAT if needed */ + if (res == FR_OK) { + res = fill_last_frag(&fp->obj, fp->clust, 0xFFFFFFFF); /* Fill last fragment on the FAT if needed */ + } if (res == FR_OK) { DIR dj; + DEF_NAMBUF INIT_NAMBUF(fs); - res = load_obj_dir(&dj, &fp->obj); /* Load directory entry block */ + res = load_obj_xdir(&dj, &fp->obj); /* Load directory entry block */ if (res == FR_OK) { - fs->dirbuf[XDIR_Attr] |= AM_ARC; /* Set archive bit */ - fs->dirbuf[XDIR_GenFlags] = fp->obj.stat | 1; /* Update file allocation info */ + fs->dirbuf[XDIR_Attr] |= AM_ARC; /* Set archive attribute to indicate that the file has been changed */ + fs->dirbuf[XDIR_GenFlags] = fp->obj.stat | 1; /* Update file allocation information */ st_dword(fs->dirbuf + XDIR_FstClus, fp->obj.sclust); st_qword(fs->dirbuf + XDIR_FileSize, fp->obj.objsize); st_qword(fs->dirbuf + XDIR_ValidFileSize, fp->obj.objsize); @@ -3717,8 +3982,8 @@ FRESULT f_sync ( res = move_window(fs, fp->dir_sect); if (res == FR_OK) { dir = fp->dir_ptr; - dir[DIR_Attr] |= AM_ARC; /* Set archive bit */ - st_clust(fp->obj.fs, dir, fp->obj.sclust); /* Update file allocation info */ + dir[DIR_Attr] |= AM_ARC; /* Set archive attribute to indicate that the file has been changed */ + st_clust(fp->obj.fs, dir, fp->obj.sclust); /* Update file allocation information */ st_dword(dir + DIR_FileSize, (DWORD)fp->obj.objsize); /* Update file size */ st_dword(dir + DIR_ModTime, tm); /* Update modified time */ st_word(dir + DIR_LstAccDate, 0); @@ -3733,7 +3998,7 @@ FRESULT f_sync ( LEAVE_FF(fs, res); } -#endif /* !_FS_READONLY */ +#endif /* !FF_FS_READONLY */ @@ -3749,21 +4014,20 @@ FRESULT f_close ( FRESULT res; FATFS *fs; -#if !_FS_READONLY +#if !FF_FS_READONLY res = f_sync(fp); /* Flush cached data */ if (res == FR_OK) #endif { res = validate(&fp->obj, &fs); /* Lock volume */ if (res == FR_OK) { -#if _FS_LOCK != 0 - res = dec_lock(fp->obj.lockid); /* Decrement file open counter */ - if (res == FR_OK) +#if FF_FS_LOCK != 0 + res = dec_lock(fp->obj.lockid); /* Decrement file open counter */ + if (res == FR_OK) fp->obj.fs = 0; /* Invalidate file object */ +#else + fp->obj.fs = 0; /* Invalidate file object */ #endif - { - fp->obj.fs = 0; /* Invalidate file object */ - } -#if _FS_REENTRANT +#if FF_FS_REENTRANT unlock_fs(fs, FR_OK); /* Unlock volume */ #endif } @@ -3774,14 +4038,13 @@ FRESULT f_close ( -#if _FS_RPATH >= 1 +#if FF_FS_RPATH >= 1 /*-----------------------------------------------------------------------*/ /* Change Current Directory or Current Drive, Get Current Directory */ /*-----------------------------------------------------------------------*/ -#if _VOLUMES >= 2 FRESULT f_chdrive ( - const TCHAR* path /* Drive number */ + const TCHAR* path /* Drive number to set */ ) { int vol; @@ -3790,23 +4053,26 @@ FRESULT f_chdrive ( /* Get logical drive number */ vol = get_ldnumber(&path); if (vol < 0) return FR_INVALID_DRIVE; - CurrVol = (BYTE)vol; /* Set it as current volume */ return FR_OK; } -#endif + FRESULT f_chdir ( const TCHAR* path /* Pointer to the directory path */ ) { +#if FF_STR_VOLUME_ID == 2 + UINT i; +#endif FRESULT res; DIR dj; FATFS *fs; DEF_NAMBUF + /* Get logical drive */ res = find_volume(&path, &fs, 0); if (res == FR_OK) { @@ -3814,9 +4080,9 @@ FRESULT f_chdir ( INIT_NAMBUF(fs); res = follow_path(&dj, path); /* Follow the path */ if (res == FR_OK) { /* Follow completed */ - if (dj.fn[NSFLAG] & NS_NONAME) { - fs->cdir = dj.obj.sclust; /* It is the start directory itself */ -#if _FS_EXFAT + if (dj.fn[NSFLAG] & NS_NONAME) { /* Is it the start directory itself? */ + fs->cdir = dj.obj.sclust; +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { fs->cdc_scl = dj.obj.c_scl; fs->cdc_size = dj.obj.c_size; @@ -3825,7 +4091,7 @@ FRESULT f_chdir ( #endif } else { if (dj.obj.attr & AM_DIR) { /* It is a sub-directory */ -#if _FS_EXFAT +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { fs->cdir = ld_dword(fs->dirbuf + XDIR_FstClus); /* Sub-directory cluster */ fs->cdc_scl = dj.obj.sclust; /* Save containing directory information */ @@ -3843,16 +4109,22 @@ FRESULT f_chdir ( } FREE_NAMBUF(); if (res == FR_NO_FILE) res = FR_NO_PATH; +#if FF_STR_VOLUME_ID == 2 /* Also current drive is changed at Unix style volume ID */ + if (res == FR_OK) { + for (i = FF_VOLUMES - 1; i && fs != FatFs[i]; i--) ; /* Set current drive */ + CurrVol = (BYTE)i; + } +#endif } LEAVE_FF(fs, res); } -#if _FS_RPATH >= 2 +#if FF_FS_RPATH >= 2 FRESULT f_getcwd ( TCHAR* buff, /* Pointer to the directory path */ - UINT len /* Size of path */ + UINT len /* Size of buff in unit of TCHAR */ ) { FRESULT res; @@ -3860,19 +4132,26 @@ FRESULT f_getcwd ( FATFS *fs; UINT i, n; DWORD ccl; - TCHAR *tp; + TCHAR *tp = buff; +#if FF_VOLUMES >= 2 + UINT vl; +#endif +#if FF_STR_VOLUME_ID + const char *vp; +#endif FILINFO fno; DEF_NAMBUF - *buff = 0; /* Get logical drive */ res = find_volume((const TCHAR**)&buff, &fs, 0); /* Get current volume */ if (res == FR_OK) { dj.obj.fs = fs; INIT_NAMBUF(fs); + + /* Follow parent directories and create the path */ i = len; /* Bottom of buffer (directory stack base) */ - if (!_FS_EXFAT || fs->fs_type != FS_EXFAT) { /* (Cannot do getcwd on exFAT and returns root path) */ + if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) { /* (Cannot do getcwd on exFAT and returns root path) */ dj.obj.sclust = fs->cdir; /* Start to follow upper directory from current directory */ while ((ccl = dj.obj.sclust) != 0) { /* Repeat while current directory is a sub-directory */ res = dir_sdi(&dj, 1 * SZDIRE); /* Get parent directory */ @@ -3883,7 +4162,7 @@ FRESULT f_getcwd ( res = dir_sdi(&dj, 0); if (res != FR_OK) break; do { /* Find the entry links to the child directory */ - res = dir_read(&dj, 0); + res = dir_read_file(&dj); if (res != FR_OK) break; if (ccl == ld_clust(fs, dj.dir)) break; /* Found the entry */ res = dir_next(&dj, 0); @@ -3891,43 +4170,55 @@ FRESULT f_getcwd ( if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */ if (res != FR_OK) break; get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */ - for (n = 0; fno.fname[n]; n++) ; - if (i < n + 3) { + for (n = 0; fno.fname[n]; n++) ; /* Name length */ + if (i < n + 1) { /* Insufficient space to store the path name? */ res = FR_NOT_ENOUGH_CORE; break; } - while (n) buff[--i] = fno.fname[--n]; + while (n) buff[--i] = fno.fname[--n]; /* Stack the name */ 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); + if (i == len) buff[--i] = '/'; /* Is it the root-directory? */ +#if FF_VOLUMES >= 2 /* Put drive prefix */ + vl = 0; +#if FF_STR_VOLUME_ID >= 1 /* String volume ID */ + for (n = 0, vp = (const char*)VolumeStr[CurrVol]; vp[n]; n++) ; + if (i >= n + 2) { + if (FF_STR_VOLUME_ID == 2) *tp++ = (TCHAR)'/'; + for (vl = 0; vl < n; *tp++ = (TCHAR)vp[vl], vl++) ; + if (FF_STR_VOLUME_ID == 1) *tp++ = (TCHAR)':'; + vl++; + } +#else /* Numeric volume ID */ + if (i >= 3) { + *tp++ = (TCHAR)'0' + CurrVol; + *tp++ = (TCHAR)':'; + vl = 2; + } +#endif + if (vl == 0) res = FR_NOT_ENOUGH_CORE; +#endif + /* Add current directory path */ + if (res == FR_OK) { + do *tp++ = buff[i++]; while (i < len); /* Copy stacked path string */ } } - *tp = 0; FREE_NAMBUF(); } + *tp = 0; LEAVE_FF(fs, res); } -#endif /* _FS_RPATH >= 2 */ -#endif /* _FS_RPATH >= 1 */ +#endif /* FF_FS_RPATH >= 2 */ +#endif /* FF_FS_RPATH >= 1 */ -#if _FS_MINIMIZE <= 2 +#if FF_FS_MINIMIZE <= 2 /*-----------------------------------------------------------------------*/ -/* Seek File R/W Pointer */ +/* Seek File Read/Write Pointer */ /*-----------------------------------------------------------------------*/ FRESULT f_lseek ( @@ -3939,19 +4230,26 @@ FRESULT f_lseek ( FATFS *fs; DWORD clst, bcs, nsect; FSIZE_t ifptr; -#if _USE_FASTSEEK +#if FF_USE_FASTSEEK DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl; #endif res = validate(&fp->obj, &fs); /* Check validity of the file object */ - if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); /* Check validity */ -#if _USE_FASTSEEK + if (res == FR_OK) res = (FRESULT)fp->err; +#if FF_FS_EXFAT && !FF_FS_READONLY + if (res == FR_OK && fs->fs_type == FS_EXFAT) { + res = fill_last_frag(&fp->obj, fp->clust, 0xFFFFFFFF); /* Fill last fragment on the FAT if needed */ + } +#endif + if (res != FR_OK) LEAVE_FF(fs, res); + +#if FF_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->obj.sclust; /* Origin of the chain */ - if (cl) { + if (cl != 0) { do { /* Get a fragment */ tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */ @@ -3975,20 +4273,20 @@ FRESULT f_lseek ( } else { /* Fast seek */ if (ofs > fp->obj.objsize) ofs = fp->obj.objsize; /* Clip offset at the file size */ fp->fptr = ofs; /* Set file pointer */ - if (ofs) { + if (ofs > 0) { fp->clust = clmt_clust(fp, ofs - 1); - dsc = clust2sect(fs, fp->clust); - if (!dsc) ABORT(fs, FR_INT_ERR); + dsc = clst2sect(fs, fp->clust); + if (dsc == 0) ABORT(fs, FR_INT_ERR); dsc += (DWORD)((ofs - 1) / SS(fs)) & (fs->csize - 1); if (fp->fptr % SS(fs) && dsc != fp->sect) { /* Refill sector cache if needed */ -#if !_FS_TINY -#if !_FS_READONLY +#if !FF_FS_TINY +#if !FF_FS_READONLY if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */ - if (disk_write(fs->drv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); fp->flag &= (BYTE)~FA_DIRTY; } #endif - if (disk_read(fs->drv, fp->buf, dsc, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Load current sector */ + if (disk_read(fs->pdrv, fp->buf, dsc, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Load current sector */ #endif fp->sect = dsc; } @@ -3999,15 +4297,15 @@ FRESULT f_lseek ( /* Normal Seek */ { -#if _FS_EXFAT - if (fs->fs_type != FS_EXFAT && ofs >= 0x100000000) ofs = 0xFFFFFFFF; /* Clip at 4GiB-1 if at FATxx */ +#if FF_FS_EXFAT + if (fs->fs_type != FS_EXFAT && ofs >= 0x100000000) ofs = 0xFFFFFFFF; /* Clip at 4 GiB - 1 if at FATxx */ #endif - if (ofs > fp->obj.objsize && (_FS_READONLY || !(fp->flag & FA_WRITE))) { /* In read-only mode, clip offset with the file size */ + if (ofs > fp->obj.objsize && (FF_FS_READONLY || !(fp->flag & FA_WRITE))) { /* In read-only mode, clip offset with the file size */ ofs = fp->obj.objsize; } ifptr = fp->fptr; fp->fptr = nsect = 0; - if (ofs) { + if (ofs > 0) { bcs = (DWORD)fs->csize * SS(fs); /* Cluster size (byte) */ if (ifptr > 0 && (ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */ @@ -4016,7 +4314,7 @@ FRESULT f_lseek ( clst = fp->clust; } else { /* When seek to back cluster, */ clst = fp->obj.sclust; /* start from the first cluster */ -#if !_FS_READONLY +#if !FF_FS_READONLY if (clst == 0) { /* If no cluster chain, create a new chain */ clst = create_chain(&fp->obj, 0); if (clst == 1) ABORT(fs, FR_INT_ERR); @@ -4029,9 +4327,9 @@ FRESULT f_lseek ( if (clst != 0) { while (ofs > bcs) { /* Cluster following loop */ ofs -= bcs; fp->fptr += bcs; -#if !_FS_READONLY +#if !FF_FS_READONLY if (fp->flag & FA_WRITE) { /* Check if in write mode or not */ - if (_FS_EXFAT && fp->fptr > fp->obj.objsize) { /* No FAT chain object needs correct objsize to generate FAT value */ + if (FF_FS_EXFAT && fp->fptr > fp->obj.objsize) { /* No FAT chain object needs correct objsize to generate FAT value */ fp->obj.objsize = fp->fptr; fp->flag |= FA_MODIFIED; } @@ -4050,25 +4348,25 @@ FRESULT f_lseek ( } fp->fptr += ofs; if (ofs % SS(fs)) { - nsect = clust2sect(fs, clst); /* Current sector */ - if (!nsect) ABORT(fs, FR_INT_ERR); + nsect = clst2sect(fs, clst); /* Current sector */ + if (nsect == 0) ABORT(fs, FR_INT_ERR); nsect += (DWORD)(ofs / SS(fs)); } } } - if (!_FS_READONLY && fp->fptr > fp->obj.objsize) { /* Set file change flag if the file size is extended */ + if (!FF_FS_READONLY && fp->fptr > fp->obj.objsize) { /* Set file change flag if the file size is extended */ fp->obj.objsize = fp->fptr; fp->flag |= FA_MODIFIED; } if (fp->fptr % SS(fs) && nsect != fp->sect) { /* Fill sector cache if needed */ -#if !_FS_TINY -#if !_FS_READONLY +#if !FF_FS_TINY +#if !FF_FS_READONLY if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */ - if (disk_write(fs->drv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); fp->flag &= (BYTE)~FA_DIRTY; } #endif - if (disk_read(fs->drv, fp->buf, nsect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Fill sector cache */ + if (disk_read(fs->pdrv, fp->buf, nsect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Fill sector cache */ #endif fp->sect = nsect; } @@ -4079,7 +4377,7 @@ FRESULT f_lseek ( -#if _FS_MINIMIZE <= 1 +#if FF_FS_MINIMIZE <= 1 /*-----------------------------------------------------------------------*/ /* Create a Directory Object */ /*-----------------------------------------------------------------------*/ @@ -4091,49 +4389,45 @@ FRESULT f_opendir ( { FRESULT res; FATFS *fs; - _FDID *obj; DEF_NAMBUF if (!dp) return FR_INVALID_OBJECT; /* Get logical drive */ - obj = &dp->obj; res = find_volume(&path, &fs, 0); if (res == FR_OK) { - obj->fs = fs; + dp->obj.fs = fs; INIT_NAMBUF(fs); res = follow_path(dp, path); /* Follow the path to the directory */ if (res == FR_OK) { /* Follow completed */ if (!(dp->fn[NSFLAG] & NS_NONAME)) { /* It is not the origin directory itself */ - if (obj->attr & AM_DIR) { /* This object is a sub-directory */ -#if _FS_EXFAT + if (dp->obj.attr & AM_DIR) { /* This object is a sub-directory */ +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { - obj->c_scl = obj->sclust; /* Save containing directory inforamation */ - obj->c_size = ((DWORD)obj->objsize & 0xFFFFFF00) | obj->stat; - obj->c_ofs = dp->blk_ofs; - obj->sclust = ld_dword(fs->dirbuf + XDIR_FstClus); /* Get object location and status */ - obj->objsize = ld_qword(fs->dirbuf + XDIR_FileSize); - obj->stat = fs->dirbuf[XDIR_GenFlags] & 2; + dp->obj.c_scl = dp->obj.sclust; /* Get containing directory inforamation */ + dp->obj.c_size = ((DWORD)dp->obj.objsize & 0xFFFFFF00) | dp->obj.stat; + dp->obj.c_ofs = dp->blk_ofs; + init_alloc_info(fs, &dp->obj); /* Get object allocation info */ } else #endif { - obj->sclust = ld_clust(fs, dp->dir); /* Get object location */ + dp->obj.sclust = ld_clust(fs, dp->dir); /* Get object allocation info */ } } else { /* This object is a file */ res = FR_NO_PATH; } } if (res == FR_OK) { - obj->id = fs->id; + dp->obj.id = fs->id; res = dir_sdi(dp, 0); /* Rewind directory */ -#if _FS_LOCK != 0 +#if FF_FS_LOCK != 0 if (res == FR_OK) { - if (obj->sclust) { - obj->lockid = inc_lock(dp, 0); /* Lock the sub directory */ - if (!obj->lockid) res = FR_TOO_MANY_OPEN_FILES; + if (dp->obj.sclust != 0) { + dp->obj.lockid = inc_lock(dp, 0); /* Lock the sub directory */ + if (!dp->obj.lockid) res = FR_TOO_MANY_OPEN_FILES; } else { - obj->lockid = 0; /* Root directory need not to be locked */ + dp->obj.lockid = 0; /* Root directory need not to be locked */ } } #endif @@ -4142,7 +4436,7 @@ FRESULT f_opendir ( FREE_NAMBUF(); if (res == FR_NO_FILE) res = FR_NO_PATH; } - if (res != FR_OK) obj->fs = 0; /* Invalidate the directory object if function faild */ + if (res != FR_OK) dp->obj.fs = 0; /* Invalidate the directory object if function faild */ LEAVE_FF(fs, res); } @@ -4162,18 +4456,15 @@ FRESULT f_closedir ( FATFS *fs; - res = validate(&dp->obj, &fs); /* Check validity of the file object */ + res = validate(&dp->obj, &fs); /* Check validity of the file object */ if (res == FR_OK) { -#if _FS_LOCK != 0 - if (dp->obj.lockid) { /* Decrement sub-directory open counter */ - res = dec_lock(dp->obj.lockid); - } - if (res == FR_OK) +#if FF_FS_LOCK != 0 + if (dp->obj.lockid) res = dec_lock(dp->obj.lockid); /* Decrement sub-directory open counter */ + if (res == FR_OK) dp->obj.fs = 0; /* Invalidate directory object */ +#else + dp->obj.fs = 0; /* Invalidate directory object */ #endif - { - dp->obj.fs = 0; /* Invalidate directory object */ - } -#if _FS_REENTRANT +#if FF_FS_REENTRANT unlock_fs(fs, FR_OK); /* Unlock volume */ #endif } @@ -4203,7 +4494,7 @@ FRESULT f_readdir ( res = dir_sdi(dp, 0); /* Rewind the directory object */ } else { INIT_NAMBUF(fs); - res = dir_read(dp, 0); /* Read an item */ + res = dir_read_file(dp); /* Read an item */ if (res == FR_NO_FILE) res = FR_OK; /* Ignore end of directory */ if (res == FR_OK) { /* A valid entry is found */ get_fileinfo(dp, fno); /* Get the object information */ @@ -4218,7 +4509,7 @@ FRESULT f_readdir ( -#if _USE_FIND +#if FF_USE_FIND /*-----------------------------------------------------------------------*/ /* Find Next File */ /*-----------------------------------------------------------------------*/ @@ -4235,7 +4526,7 @@ FRESULT f_findnext ( 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 (pattern_matching(dp->pat, fno->fname, 0, 0)) break; /* Test for the file name */ -#if _USE_LFN != 0 && _USE_FIND == 2 +#if FF_USE_LFN && FF_USE_FIND == 2 if (pattern_matching(dp->pat, fno->altname, 0, 0)) break; /* Test for alternative name if exist */ #endif } @@ -4266,11 +4557,11 @@ FRESULT f_findfirst ( return res; } -#endif /* _USE_FIND */ +#endif /* FF_USE_FIND */ -#if _FS_MINIMIZE == 0 +#if FF_FS_MINIMIZE == 0 /*-----------------------------------------------------------------------*/ /* Get File Status */ /*-----------------------------------------------------------------------*/ @@ -4305,36 +4596,35 @@ FRESULT f_stat ( -#if !_FS_READONLY +#if !FF_FS_READONLY /*-----------------------------------------------------------------------*/ /* Get Number of Free Clusters */ /*-----------------------------------------------------------------------*/ FRESULT f_getfree ( - const TCHAR* path, /* Path name of the logical drive number */ + const TCHAR* path, /* 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 */ + FATFS** fatfs /* Pointer to return pointer to corresponding filesystem object */ ) { FRESULT res; FATFS *fs; DWORD nfree, clst, sect, stat; UINT i; - BYTE *p; - _FDID obj; + FFOBJID obj; /* Get logical drive */ res = find_volume(&path, &fs, 0); if (res == FR_OK) { *fatfs = fs; /* Return ptr to the fs object */ - /* If free_clst is valid, return it without full cluster scan */ + /* If free_clst is valid, return it without full FAT scan */ if (fs->free_clst <= fs->n_fatent - 2) { *nclst = fs->free_clst; } else { - /* Get number of free clusters */ + /* Scan FAT to obtain number of free clusters */ nfree = 0; - if (fs->fs_type == FS_FAT12) { /* FAT12: Sector unalighed FAT entries */ + if (fs->fs_type == FS_FAT12) { /* FAT12: Scan bit field FAT entries */ clst = 2; obj.fs = fs; do { stat = get_fat(&obj, clst); @@ -4343,16 +4633,19 @@ FRESULT f_getfree ( if (stat == 0) nfree++; } while (++clst < fs->n_fatent); } else { -#if _FS_EXFAT - if (fs->fs_type == FS_EXFAT) { /* exFAT: Scan bitmap table */ +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { /* exFAT: Scan allocation bitmap */ BYTE bm; UINT b; - clst = fs->n_fatent - 2; - sect = fs->database; - i = 0; - do { - if (i == 0 && (res = move_window(fs, sect++)) != FR_OK) break; + clst = fs->n_fatent - 2; /* Number of clusters */ + sect = fs->database; /* Assuming bitmap starts at cluster 2 */ + i = 0; /* Offset in the sector */ + do { /* Counts numbuer of bits with zero in the bitmap */ + if (i == 0) { + res = move_window(fs, sect++); + if (res != FR_OK) break; + } for (b = 8, bm = fs->win[i]; b && clst; b--, clst--) { if (!(bm & 1)) nfree++; bm >>= 1; @@ -4361,29 +4654,29 @@ FRESULT f_getfree ( } while (clst); } else #endif - { /* FAT16/32: Sector alighed FAT entries */ - clst = fs->n_fatent; sect = fs->fatbase; - i = 0; p = 0; - do { + { /* FAT16/32: Scan WORD/DWORD FAT entries */ + clst = fs->n_fatent; /* Number of entries */ + sect = fs->fatbase; /* Top of the FAT */ + i = 0; /* Offset in the sector */ + do { /* Counts numbuer of entries with zero in the FAT */ if (i == 0) { res = move_window(fs, sect++); if (res != FR_OK) break; - p = fs->win; - i = SS(fs); } if (fs->fs_type == FS_FAT16) { - if (ld_word(p) == 0) nfree++; - p += 2; i -= 2; + if (ld_word(fs->win + i) == 0) nfree++; + i += 2; } else { - if ((ld_dword(p) & 0x0FFFFFFF) == 0) nfree++; - p += 4; i -= 4; + if ((ld_dword(fs->win + i) & 0x0FFFFFFF) == 0) nfree++; + i += 4; } + i %= SS(fs); } while (--clst); } } *nclst = nfree; /* Return the free clusters */ fs->free_clst = nfree; /* Now free_clst is valid */ - fs->fsi_flag |= 1; /* FSInfo is to be updated */ + fs->fsi_flag |= 1; /* FAT32: FSInfo is to be updated */ } } @@ -4410,7 +4703,7 @@ FRESULT f_truncate ( if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); if (!(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */ - if (fp->obj.objsize > fp->fptr) { + if (fp->fptr < fp->obj.objsize) { /* Process when fptr is not on the eof */ if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */ res = remove_chain(&fp->obj, fp->obj.sclust, 0); fp->obj.sclust = 0; @@ -4423,11 +4716,11 @@ FRESULT f_truncate ( res = remove_chain(&fp->obj, ncl, fp->clust); } } - fp->obj.objsize = fp->fptr; /* Set file size to current R/W point */ + fp->obj.objsize = fp->fptr; /* Set file size to current read/write point */ fp->flag |= FA_MODIFIED; -#if !_FS_TINY +#if !FF_FS_TINY if (res == FR_OK && (fp->flag & FA_DIRTY)) { - if (disk_write(fs->drv, fp->buf, fp->sect, 1) != RES_OK) { + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) { res = FR_DISK_ERR; } else { fp->flag &= (BYTE)~FA_DIRTY; @@ -4455,22 +4748,22 @@ FRESULT f_unlink ( DIR dj, sdj; DWORD dclst = 0; FATFS *fs; -#if _FS_EXFAT - _FDID obj; +#if FF_FS_EXFAT + FFOBJID obj; #endif DEF_NAMBUF /* Get logical drive */ res = find_volume(&path, &fs, FA_WRITE); - dj.obj.fs = fs; if (res == FR_OK) { + dj.obj.fs = fs; INIT_NAMBUF(fs); res = follow_path(&dj, path); /* Follow the file path */ - if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT)) { + if (FF_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT)) { res = FR_INVALID_NAME; /* Cannot remove dot entry */ } -#if _FS_LOCK != 0 +#if FF_FS_LOCK != 0 if (res == FR_OK) res = chk_lock(&dj, 2); /* Check if it is an open object */ #endif if (res == FR_OK) { /* The object is accessible */ @@ -4482,27 +4775,26 @@ FRESULT f_unlink ( } } if (res == FR_OK) { -#if _FS_EXFAT +#if FF_FS_EXFAT obj.fs = fs; if (fs->fs_type == FS_EXFAT) { - obj.sclust = dclst = ld_dword(fs->dirbuf + XDIR_FstClus); - obj.objsize = ld_qword(fs->dirbuf + XDIR_FileSize); - obj.stat = fs->dirbuf[XDIR_GenFlags] & 2; + init_alloc_info(fs, &obj); + dclst = obj.sclust; } else #endif { dclst = ld_clust(fs, dj.dir); } - if (dj.obj.attr & AM_DIR) { /* Is it a sub-directory ? */ -#if _FS_RPATH != 0 - if (dclst == fs->cdir) { /* Is it the current directory? */ + if (dj.obj.attr & AM_DIR) { /* Is it a sub-directory? */ +#if FF_FS_RPATH != 0 + if (dclst == fs->cdir) { /* Is it the current directory? */ res = FR_DENIED; } else #endif { - sdj.obj.fs = fs; /* Open the sub-directory */ + sdj.obj.fs = fs; /* Open the sub-directory */ sdj.obj.sclust = dclst; -#if _FS_EXFAT +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { sdj.obj.objsize = obj.objsize; sdj.obj.stat = obj.stat; @@ -4510,7 +4802,7 @@ FRESULT f_unlink ( #endif res = dir_sdi(&sdj, 0); if (res == FR_OK) { - res = dir_read(&sdj, 0); /* Read an item */ + res = dir_read_file(&sdj); /* Test if the directory is empty */ if (res == FR_OK) res = FR_DENIED; /* Not empty? */ if (res == FR_NO_FILE) res = FR_OK; /* Empty? */ } @@ -4519,8 +4811,8 @@ FRESULT f_unlink ( } if (res == FR_OK) { res = dir_remove(&dj); /* Remove the directory entry */ - if (res == FR_OK && dclst) { /* Remove the cluster chain if exist */ -#if _FS_EXFAT + if (res == FR_OK && dclst != 0) { /* Remove the cluster chain if exist */ +#if FF_FS_EXFAT res = remove_chain(&obj, dclst, 0); #else res = remove_chain(&dj.obj, dclst, 0); @@ -4550,19 +4842,18 @@ FRESULT f_mkdir ( DIR dj; FATFS *fs; BYTE *dir; - UINT n; - DWORD dsc, dcl, pcl, tm; + DWORD dcl, pcl, tm; DEF_NAMBUF /* Get logical drive */ res = find_volume(&path, &fs, FA_WRITE); - dj.obj.fs = fs; if (res == FR_OK) { + dj.obj.fs = fs; INIT_NAMBUF(fs); 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)) { + if (FF_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 */ @@ -4575,37 +4866,31 @@ FRESULT f_mkdir ( if (res == FR_OK) res = sync_window(fs); /* Flush FAT */ tm = GET_FATTIME(); if (res == FR_OK) { /* Initialize the new directory table */ - dsc = clust2sect(fs, dcl); - dir = fs->win; - mem_set(dir, 0, SS(fs)); - if (!_FS_EXFAT || fs->fs_type != FS_EXFAT) { + res = dir_clear(fs, dcl); /* Clean up the new table */ + if (res == FR_OK && (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT)) { /* Create dot entries (FAT only) */ + dir = fs->win; mem_set(dir + DIR_Name, ' ', 11); /* Create "." entry */ dir[DIR_Name] = '.'; dir[DIR_Attr] = AM_DIR; st_dword(dir + DIR_ModTime, tm); st_clust(fs, dir, dcl); - mem_cpy(dir + SZDIRE, dir, SZDIRE); /* Create ".." entry */ + mem_cpy(dir + SZDIRE, dir, SZDIRE); /* Create ".." entry */ dir[SZDIRE + 1] = '.'; pcl = dj.obj.sclust; - if (fs->fs_type == FS_FAT32 && pcl == fs->dirbase) pcl = 0; st_clust(fs, dir + SZDIRE, pcl); - } - for (n = fs->csize; n; n--) { /* Write dot entries and clear following sectors */ - fs->winsect = dsc++; fs->wflag = 1; - res = sync_window(fs); - if (res != FR_OK) break; - mem_set(dir, 0, SS(fs)); } } - if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */ if (res == FR_OK) { -#if _FS_EXFAT + res = dir_register(&dj); /* Register the object to the directoy */ + } + if (res == FR_OK) { +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { /* Initialize directory entry block */ st_dword(fs->dirbuf + XDIR_ModTime, tm); /* Created time */ st_dword(fs->dirbuf + XDIR_FstClus, dcl); /* Table start cluster */ st_dword(fs->dirbuf + XDIR_FileSize, (DWORD)dj.obj.objsize); /* File size needs to be valid */ st_dword(fs->dirbuf + XDIR_ValidFileSize, (DWORD)dj.obj.objsize); - fs->dirbuf[XDIR_GenFlags] = 3; /* Initialize the object flag (contiguous) */ + fs->dirbuf[XDIR_GenFlags] = 3; /* Initialize the object flag */ fs->dirbuf[XDIR_Attr] = AM_DIR; /* Attribute */ res = store_xdir(&dj); } else @@ -4617,7 +4902,9 @@ FRESULT f_mkdir ( dir[DIR_Attr] = AM_DIR; /* Attribute */ fs->wflag = 1; } - if (res == FR_OK) res = sync_fs(fs); + if (res == FR_OK) { + res = sync_fs(fs); + } } else { remove_chain(&dj.obj, dcl, 0); /* Could not register, remove cluster chain */ } @@ -4643,24 +4930,26 @@ FRESULT f_rename ( FRESULT res; DIR djo, djn; FATFS *fs; - BYTE buf[_FS_EXFAT ? SZDIRE * 2 : 24], *dir; + BYTE buf[FF_FS_EXFAT ? SZDIRE * 2 : SZDIRE], *dir; DWORD dw; DEF_NAMBUF - get_ldnumber(&path_new); /* Ignore drive number of new name */ + get_ldnumber(&path_new); /* Snip the drive number of new name off */ res = find_volume(&path_old, &fs, FA_WRITE); /* Get logical drive of the old object */ if (res == FR_OK) { djo.obj.fs = fs; INIT_NAMBUF(fs); res = follow_path(&djo, path_old); /* Check old object */ if (res == FR_OK && (djo.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check validity of name */ -#if _FS_LOCK != 0 - if (res == FR_OK) res = chk_lock(&djo, 2); +#if FF_FS_LOCK != 0 + if (res == FR_OK) { + res = chk_lock(&djo, 2); + } #endif if (res == FR_OK) { /* Object to be renamed is found */ -#if _FS_EXFAT - if (fs->fs_type == FS_EXFAT) { /* At exFAT */ +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { /* At exFAT volume */ BYTE nf, nn; WORD nh; @@ -4675,17 +4964,18 @@ FRESULT f_rename ( if (res == FR_OK) { nf = fs->dirbuf[XDIR_NumSec]; nn = fs->dirbuf[XDIR_NumName]; nh = ld_word(fs->dirbuf + XDIR_NameHash); - mem_cpy(fs->dirbuf, buf, SZDIRE * 2); + mem_cpy(fs->dirbuf, buf, SZDIRE * 2); /* Restore 85+C0 entry */ fs->dirbuf[XDIR_NumSec] = nf; fs->dirbuf[XDIR_NumName] = nn; st_word(fs->dirbuf + XDIR_NameHash, nh); -/* Start of critical section where any interruption can cause a cross-link */ + if (!(fs->dirbuf[XDIR_Attr] & AM_DIR)) fs->dirbuf[XDIR_Attr] |= AM_ARC; /* Set archive attribute if it is a file */ +/* Start of critical section where an interruption can cause a cross-link */ res = store_xdir(&djn); } } } else #endif - { /* At FAT12/FAT16/FAT32 */ - mem_cpy(buf, djo.dir + DIR_Attr, 21); /* Save information about the object except name */ + { /* At FAT/FAT32 volume */ + mem_cpy(buf, djo.dir, SZDIRE); /* Save directory entry of the object */ mem_cpy(&djn, &djo, sizeof (DIR)); /* Duplicate the directory object */ res = follow_path(&djn, path_new); /* Make sure if new object name is not in use */ if (res == FR_OK) { /* Is new name already in use by any other object? */ @@ -4694,16 +4984,17 @@ FRESULT f_rename ( 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) { - dir = djn.dir; /* Copy information about object except name */ - mem_cpy(dir + 13, buf + 2, 19); - dir[DIR_Attr] = buf[0] | AM_ARC; + dir = djn.dir; /* Copy directory entry of the object except name */ + mem_cpy(dir + 13, buf + 13, SZDIRE - 13); + dir[DIR_Attr] = buf[DIR_Attr]; + if (!(dir[DIR_Attr] & AM_DIR)) dir[DIR_Attr] |= AM_ARC; /* Set archive attribute if it is a file */ fs->wflag = 1; if ((dir[DIR_Attr] & AM_DIR) && djo.obj.sclust != djn.obj.sclust) { /* Update .. entry in the sub-directory if needed */ - dw = clust2sect(fs, ld_clust(fs, dir)); - if (!dw) { + dw = clst2sect(fs, ld_clust(fs, dir)); + if (dw == 0) { res = FR_INT_ERR; } else { -/* Start of critical section where any interruption can cause a cross-link */ +/* Start of critical section where an interruption can cause a cross-link */ res = move_window(fs, dw); dir = fs->win + SZDIRE * 1; /* Ptr to .. entry */ if (res == FR_OK && dir[1] == '.') { @@ -4721,7 +5012,7 @@ FRESULT f_rename ( res = sync_fs(fs); } } -/* End of critical section */ +/* End of the critical section */ } FREE_NAMBUF(); } @@ -4729,14 +5020,14 @@ FRESULT f_rename ( LEAVE_FF(fs, res); } -#endif /* !_FS_READONLY */ -#endif /* _FS_MINIMIZE == 0 */ -#endif /* _FS_MINIMIZE <= 1 */ -#endif /* _FS_MINIMIZE <= 2 */ +#endif /* !FF_FS_READONLY */ +#endif /* FF_FS_MINIMIZE == 0 */ +#endif /* FF_FS_MINIMIZE <= 1 */ +#endif /* FF_FS_MINIMIZE <= 2 */ -#if _USE_CHMOD && !_FS_READONLY +#if FF_USE_CHMOD && !FF_FS_READONLY /*-----------------------------------------------------------------------*/ /* Change Attribute */ /*-----------------------------------------------------------------------*/ @@ -4754,14 +5045,14 @@ FRESULT f_chmod ( res = find_volume(&path, &fs, FA_WRITE); /* Get logical drive */ - dj.obj.fs = fs; if (res == FR_OK) { + dj.obj.fs = fs; INIT_NAMBUF(fs); res = follow_path(&dj, path); /* Follow the file path */ if (res == FR_OK && (dj.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check object validity */ if (res == FR_OK) { mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */ -#if _FS_EXFAT +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { fs->dirbuf[XDIR_Attr] = (attr & mask) | (fs->dirbuf[XDIR_Attr] & (BYTE)~mask); /* Apply attribute change */ res = store_xdir(&dj); @@ -4771,7 +5062,9 @@ FRESULT f_chmod ( dj.dir[DIR_Attr] = (attr & mask) | (dj.dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */ fs->wflag = 1; } - if (res == FR_OK) res = sync_fs(fs); + if (res == FR_OK) { + res = sync_fs(fs); + } } FREE_NAMBUF(); } @@ -4788,7 +5081,7 @@ FRESULT f_chmod ( FRESULT f_utime ( const TCHAR* path, /* Pointer to the file/directory name */ - const FILINFO* fno /* Pointer to the time stamp to be set */ + const FILINFO* fno /* Pointer to the timestamp to be set */ ) { FRESULT res; @@ -4798,13 +5091,13 @@ FRESULT f_utime ( res = find_volume(&path, &fs, FA_WRITE); /* Get logical drive */ - dj.obj.fs = fs; if (res == FR_OK) { + dj.obj.fs = fs; INIT_NAMBUF(fs); res = follow_path(&dj, path); /* Follow the file path */ if (res == FR_OK && (dj.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check object validity */ if (res == FR_OK) { -#if _FS_EXFAT +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { st_dword(fs->dirbuf + XDIR_ModTime, (DWORD)fno->fdate << 16 | fno->ftime); res = store_xdir(&dj); @@ -4814,7 +5107,9 @@ FRESULT f_utime ( st_dword(dj.dir + DIR_ModTime, (DWORD)fno->fdate << 16 | fno->ftime); fs->wflag = 1; } - if (res == FR_OK) res = sync_fs(fs); + if (res == FR_OK) { + res = sync_fs(fs); + } } FREE_NAMBUF(); } @@ -4822,28 +5117,26 @@ FRESULT f_utime ( LEAVE_FF(fs, res); } -#endif /* _USE_CHMOD && !_FS_READONLY */ +#endif /* FF_USE_CHMOD && !FF_FS_READONLY */ -#if _USE_LABEL +#if FF_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 */ + const TCHAR* path, /* Logical drive number */ + TCHAR* label, /* Buffer to store the volume label */ + DWORD* vsn /* Variable to store the volume serial number */ ) { FRESULT res; DIR dj; FATFS *fs; UINT si, di; -#if _LFN_UNICODE || _FS_EXFAT - WCHAR w; -#endif + WCHAR wc; /* Get logical drive */ res = find_volume(&path, &fs, 0); @@ -4853,37 +5146,40 @@ FRESULT f_getlabel ( dj.obj.fs = fs; dj.obj.sclust = 0; /* Open root directory */ res = dir_sdi(&dj, 0); if (res == FR_OK) { - res = dir_read(&dj, 1); /* Find a volume label entry */ + res = dir_read_label(&dj); /* Find a volume label entry */ if (res == FR_OK) { -#if _FS_EXFAT +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { - for (si = di = 0; si < dj.dir[XDIR_NumLabel]; si++) { /* Extract volume label from 83 entry */ - w = ld_word(dj.dir + XDIR_Label + si * 2); -#if _LFN_UNICODE - label[di++] = w; -#else - w = ff_convert(w, 0); /* Unicode -> OEM */ - if (w == 0) w = '?'; /* Replace wrong character */ - if (_DF1S && w >= 0x100) label[di++] = (char)(w >> 8); - label[di++] = (char)w; -#endif + WCHAR hs; + + for (si = di = hs = 0; si < dj.dir[XDIR_NumLabel]; si++) { /* Extract volume label from 83 entry */ + wc = ld_word(dj.dir + XDIR_Label + si * 2); + if (hs == 0 && IsSurrogate(wc)) { /* Is the code a surrogate? */ + hs = wc; continue; + } + wc = put_utf((DWORD)hs << 16 | wc, &label[di], 4); + if (wc == 0) { di = 0; break; } + di += wc; + hs = 0; } + if (hs != 0) di = 0; /* Broken surrogate pair? */ label[di] = 0; } else #endif { - si = di = 0; /* Extract volume label from AM_VOL entry with code comversion */ - do { -#if _LFN_UNICODE - w = (si < 11) ? dj.dir[si++] : ' '; - if (IsDBCS1(w) && si < 11 && IsDBCS2(dj.dir[si])) { - w = w << 8 | dj.dir[si++]; - } - label[di++] = ff_convert(w, 1); /* OEM -> Unicode */ -#else - label[di++] = dj.dir[si++]; + si = di = 0; /* Extract volume label from AM_VOL entry */ + while (si < 11) { + wc = dj.dir[si++]; +#if FF_USE_LFN && FF_LFN_UNICODE >= 1 /* Unicode output */ + if (dbc_1st((BYTE)wc) && si < 11) wc = wc << 8 | dj.dir[si++]; /* Is it a DBC? */ + wc = ff_oem2uni(wc, CODEPAGE); /* Convert it into Unicode */ + if (wc != 0) wc = put_utf(wc, &label[di], 4); /* Put it in Unicode */ + if (wc == 0) { di = 0; break; } + di += wc; +#else /* ANSI/OEM output */ + label[di++] = (TCHAR)wc; #endif - } while (di < 11); + } do { /* Truncate trailing spaces */ label[di] = 0; if (di == 0) break; @@ -4902,9 +5198,14 @@ FRESULT f_getlabel ( res = move_window(fs, fs->volbase); if (res == FR_OK) { switch (fs->fs_type) { - case FS_EXFAT: di = BPB_VolIDEx; break; - case FS_FAT32: di = BS_VolID32; break; - default: di = BS_VolID; + case FS_EXFAT: + di = BPB_VolIDEx; break; + + case FS_FAT32: + di = BS_VolID32; break; + + default: + di = BS_VolID; } *vsn = ld_dword(fs->win + di); } @@ -4915,95 +5216,88 @@ FRESULT f_getlabel ( -#if !_FS_READONLY +#if !FF_FS_READONLY /*-----------------------------------------------------------------------*/ /* Set Volume Label */ /*-----------------------------------------------------------------------*/ FRESULT f_setlabel ( - const TCHAR* label /* Pointer to the volume label to set */ + const TCHAR* label /* Volume label to set with heading logical drive number */ ) { FRESULT res; DIR dj; FATFS *fs; BYTE dirvn[22]; - UINT i, j, slen; - WCHAR w; - static const char badchr[] = "\"*+,.:;<=>\?[]|\x7F"; - + UINT di; + WCHAR wc; + static const char badchr[] = "+.,;=[]/\\\"*:<>\?|\x7F"; /* [0..] for FAT, [7..] for exFAT */ +#if FF_USE_LFN + DWORD dc; +#endif /* Get logical drive */ res = find_volume(&label, &fs, FA_WRITE); if (res != FR_OK) LEAVE_FF(fs, res); - dj.obj.fs = fs; - /* Get length of given volume label */ - for (slen = 0; (UINT)label[slen] >= ' '; slen++) ; /* Get name length */ - -#if _FS_EXFAT +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ - for (i = j = 0; i < slen; ) { /* Create volume label in directory form */ - w = label[i++]; -#if !_LFN_UNICODE - if (IsDBCS1(w)) { - w = (i < slen && IsDBCS2(label[i])) ? w << 8 | (BYTE)label[i++] : 0; + mem_set(dirvn, 0, 22); + di = 0; + while ((UINT)*label >= ' ') { /* Create volume label */ + dc = tchar2uni(&label); /* Get a Unicode character */ + if (dc >= 0x10000) { + if (dc == 0xFFFFFFFF || di >= 10) { /* Wrong surrogate or buffer overflow */ + dc = 0; + } else { + st_word(dirvn + di * 2, (WCHAR)(dc >> 16)); di++; + } } - w = ff_convert(w, 1); -#endif - if (w == 0 || chk_chr(badchr, w) || j == 22) { /* Check validity check validity of the volume label */ + if (dc == 0 || chk_chr(badchr + 7, (int)dc) || di >= 11) { /* Check validity of the volume label */ LEAVE_FF(fs, FR_INVALID_NAME); } - st_word(dirvn + j, w); j += 2; + st_word(dirvn + di * 2, (WCHAR)dc); di++; } - slen = j; } else #endif - { /* On the FAT12/16/32 volume */ - for ( ; slen && label[slen - 1] == ' '; slen--) ; /* Remove trailing spaces */ - if (slen) { /* Is there a volume label to be set? */ - dirvn[0] = 0; i = j = 0; /* Create volume label in directory form */ - do { -#if _LFN_UNICODE - w = ff_convert(ff_wtoupper(label[i++]), 0); -#else - w = (BYTE)label[i++]; - if (IsDBCS1(w)) { - w = (j < 10 && i < slen && IsDBCS2(label[i])) ? w << 8 | (BYTE)label[i++] : 0; - } -#if _USE_LFN != 0 - 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 == 0 || chk_chr(badchr, w) || j >= (UINT)((w >= 0x100) ? 10 : 11)) { /* Reject invalid characters for volume label */ - LEAVE_FF(fs, FR_INVALID_NAME); - } - if (w >= 0x100) dirvn[j++] = (BYTE)(w >> 8); - dirvn[j++] = (BYTE)w; - } while (i < slen); - while (j < 11) dirvn[j++] = ' '; /* Fill remaining name field */ - if (dirvn[0] == DDEM) LEAVE_FF(fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */ + { /* On the FAT/FAT32 volume */ + mem_set(dirvn, ' ', 11); + di = 0; + while ((UINT)*label >= ' ') { /* Create volume label */ +#if FF_USE_LFN + dc = tchar2uni(&label); + wc = (dc < 0x10000) ? ff_uni2oem(ff_wtoupper(dc), CODEPAGE) : 0; +#else /* ANSI/OEM input */ + wc = (BYTE)*label++; + if (dbc_1st((BYTE)wc)) wc = dbc_2nd((BYTE)*label) ? wc << 8 | (BYTE)*label++ : 0; + if (IsLower(wc)) wc -= 0x20; /* To upper ASCII characters */ +#if FF_CODE_PAGE == 0 + if (ExCvt && wc >= 0x80) wc = ExCvt[wc - 0x80]; /* To upper extended characters (SBCS cfg) */ +#elif FF_CODE_PAGE < 900 + if (wc >= 0x80) wc = ExCvt[wc - 0x80]; /* To upper extended characters (SBCS cfg) */ +#endif +#endif + if (wc == 0 || chk_chr(badchr + 0, (int)wc) || di >= (UINT)((wc >= 0x100) ? 10 : 11)) { /* Reject invalid characters for volume label */ + LEAVE_FF(fs, FR_INVALID_NAME); + } + if (wc >= 0x100) dirvn[di++] = (BYTE)(wc >> 8); + dirvn[di++] = (BYTE)wc; } + if (dirvn[0] == DDEM) LEAVE_FF(fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */ + while (di && dirvn[di - 1] == ' ') di--; /* Snip trailing spaces */ } /* Set volume label */ - dj.obj.sclust = 0; /* Open root directory */ + dj.obj.fs = fs; dj.obj.sclust = 0; /* Open root directory */ res = dir_sdi(&dj, 0); if (res == FR_OK) { - res = dir_read(&dj, 1); /* Get volume label entry */ + res = dir_read_label(&dj); /* Get volume label entry */ if (res == FR_OK) { - if (_FS_EXFAT && fs->fs_type == FS_EXFAT) { - dj.dir[XDIR_NumLabel] = (BYTE)(slen / 2); /* Change the volume label */ - mem_cpy(dj.dir + XDIR_Label, dirvn, slen); + if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) { + dj.dir[XDIR_NumLabel] = (BYTE)di; /* Change the volume label */ + mem_cpy(dj.dir + XDIR_Label, dirvn, 22); } else { - if (slen) { + if (di != 0) { mem_cpy(dj.dir, dirvn, 11); /* Change the volume label */ } else { dj.dir[DIR_Name] = DDEM; /* Remove the volume label */ @@ -5011,17 +5305,17 @@ FRESULT f_setlabel ( } fs->wflag = 1; res = sync_fs(fs); - } else { /* No volume label entry is found or error */ + } else { /* No volume label entry or an error */ if (res == FR_NO_FILE) { res = FR_OK; - if (slen) { /* Create a volume label entry */ + if (di != 0) { /* Create a volume label entry */ res = dir_alloc(&dj, 1); /* Allocate an entry */ if (res == FR_OK) { - mem_set(dj.dir, 0, SZDIRE); /* Clear the entry */ - if (_FS_EXFAT && fs->fs_type == FS_EXFAT) { + mem_set(dj.dir, 0, SZDIRE); /* Clean the entry */ + if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) { dj.dir[XDIR_Type] = 0x83; /* Create 83 entry */ - dj.dir[XDIR_NumLabel] = (BYTE)(slen / 2); - mem_cpy(dj.dir + XDIR_Label, dirvn, slen); + dj.dir[XDIR_NumLabel] = (BYTE)di; + mem_cpy(dj.dir + XDIR_Label, dirvn, 22); } else { dj.dir[DIR_Attr] = AM_VOL; /* Create volume label entry */ mem_cpy(dj.dir, dirvn, 11); @@ -5037,12 +5331,12 @@ FRESULT f_setlabel ( LEAVE_FF(fs, res); } -#endif /* !_FS_READONLY */ -#endif /* _USE_LABEL */ +#endif /* !FF_FS_READONLY */ +#endif /* FF_USE_LABEL */ -#if _USE_EXPAND && !_FS_READONLY +#if FF_USE_EXPAND && !FF_FS_READONLY /*-----------------------------------------------------------------------*/ /* Allocate a Contiguous Blocks to the File */ /*-----------------------------------------------------------------------*/ @@ -5061,7 +5355,7 @@ FRESULT f_expand ( res = validate(&fp->obj, &fs); /* Check validity of the file object */ if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); if (fsz == 0 || fp->obj.objsize != 0 || !(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); -#if _FS_EXFAT +#if FF_FS_EXFAT if (fs->fs_type != FS_EXFAT && fsz >= 0x100000000) LEAVE_FF(fs, FR_DENIED); /* Check if in size limit */ #endif n = (DWORD)fs->csize * SS(fs); /* Cluster size */ @@ -5069,16 +5363,16 @@ FRESULT f_expand ( stcl = fs->last_clst; lclst = 0; if (stcl < 2 || stcl >= fs->n_fatent) stcl = 2; -#if _FS_EXFAT +#if FF_FS_EXFAT if (fs->fs_type == FS_EXFAT) { scl = find_bitmap(fs, stcl, tcl); /* Find a contiguous cluster block */ if (scl == 0) res = FR_DENIED; /* No contiguous cluster block was found */ if (scl == 0xFFFFFFFF) res = FR_DISK_ERR; - if (res == FR_OK) { - if (opt) { + if (res == FR_OK) { /* A contiguous free area is found */ + if (opt) { /* Allocate it now */ res = change_bitmap(fs, scl, tcl, 1); /* Mark the cluster block 'in use' */ lclst = scl + tcl - 1; - } else { + } else { /* Set it as suggested point for next allocation */ lclst = scl - 1; } } @@ -5098,14 +5392,14 @@ FRESULT f_expand ( } if (clst == stcl) { res = FR_DENIED; break; } /* No contiguous cluster? */ } - if (res == FR_OK) { - if (opt) { + if (res == FR_OK) { /* A contiguous free area is found */ + if (opt) { /* Allocate it now */ for (clst = scl, n = tcl; n; clst++, n--) { /* Create a cluster chain on the FAT */ res = put_fat(fs, clst, (n == 1) ? 0xFFFFFFFF : clst + 1); if (res != FR_OK) break; lclst = clst; } - } else { + } else { /* Set it as suggested point for next allocation */ lclst = scl - 1; } } @@ -5113,12 +5407,12 @@ FRESULT f_expand ( if (res == FR_OK) { fs->last_clst = lclst; /* Set suggested start cluster to start next */ - if (opt) { + if (opt) { /* Is it allocated now? */ fp->obj.sclust = scl; /* Update object allocation information */ fp->obj.objsize = fsz; - if (_FS_EXFAT) fp->obj.stat = 2; /* Set status 'contiguous chain' */ + if (FF_FS_EXFAT) fp->obj.stat = 2; /* Set status 'contiguous chain' */ fp->flag |= FA_MODIFIED; - if (fs->free_clst < fs->n_fatent - 2) { /* Update FSINFO */ + if (fs->free_clst <= fs->n_fatent - 2) { /* Update FSINFO */ fs->free_clst -= tcl; fs->fsi_flag |= 1; } @@ -5128,13 +5422,13 @@ FRESULT f_expand ( LEAVE_FF(fs, res); } -#endif /* _USE_EXPAND && !_FS_READONLY */ +#endif /* FF_USE_EXPAND && !FF_FS_READONLY */ -#if _USE_FORWARD +#if FF_USE_FORWARD /*-----------------------------------------------------------------------*/ -/* Forward data to the stream directly */ +/* Forward Data to the Stream Directly */ /*-----------------------------------------------------------------------*/ FRESULT f_forward ( @@ -5172,21 +5466,21 @@ FRESULT f_forward ( fp->clust = clst; /* Update current cluster */ } } - sect = clust2sect(fs, fp->clust); /* Get current data sector */ - if (!sect) ABORT(fs, FR_INT_ERR); + sect = clst2sect(fs, fp->clust); /* Get current data sector */ + if (sect == 0) ABORT(fs, FR_INT_ERR); sect += csect; -#if _FS_TINY +#if FF_FS_TINY if (move_window(fs, sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window to the file data */ dbuf = fs->win; #else if (fp->sect != sect) { /* Fill sector cache with file data */ -#if !_FS_READONLY +#if !FF_FS_READONLY if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */ - if (disk_write(fs->drv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); fp->flag &= (BYTE)~FA_DIRTY; } #endif - if (disk_read(fs->drv, fp->buf, sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); + if (disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); } dbuf = fp->buf; #endif @@ -5194,41 +5488,41 @@ FRESULT f_forward ( rcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes left in the sector */ if (rcnt > btf) rcnt = btf; /* Clip it by btr if needed */ rcnt = (*func)(dbuf + ((UINT)fp->fptr % SS(fs)), rcnt); /* Forward the file data */ - if (!rcnt) ABORT(fs, FR_INT_ERR); + if (rcnt == 0) ABORT(fs, FR_INT_ERR); } LEAVE_FF(fs, FR_OK); } -#endif /* _USE_FORWARD */ +#endif /* FF_USE_FORWARD */ -#if _USE_MKFS && !_FS_READONLY +#if FF_USE_MKFS && !FF_FS_READONLY /*-----------------------------------------------------------------------*/ -/* Create FAT file system on the logical drive */ +/* Create an FAT/exFAT volume */ /*-----------------------------------------------------------------------*/ FRESULT f_mkfs ( const TCHAR* path, /* Logical drive number */ BYTE opt, /* Format option */ - DWORD au, /* Size of allocation unit [byte] */ - void* work, /* Pointer to working buffer */ - UINT len /* Size of working buffer */ + DWORD au, /* Size of allocation unit (cluster) [byte] */ + void* work, /* Pointer to working buffer (null: use heap memory) */ + UINT len /* Size of working buffer [byte] */ ) { - const UINT n_fats = 1; /* Number of FATs for FAT12/16/32 volume (1 or 2) */ - const UINT n_rootdir = 512; /* Number of root directory entries for FAT12/16 volume */ - static const WORD cst[] = {1, 4, 16, 64, 256, 512, 0}; /* Cluster size boundary for FAT12/16 volume (4Ks unit) */ + const UINT n_fats = 1; /* Number of FATs for FAT/FAT32 volume (1 or 2) */ + const UINT n_rootdir = 512; /* Number of root directory entries for FAT volume */ + static const WORD cst[] = {1, 4, 16, 64, 256, 512, 0}; /* Cluster size boundary for FAT volume (4Ks unit) */ static const WORD cst32[] = {1, 2, 4, 8, 16, 32, 0}; /* Cluster size boundary for FAT32 volume (128Ks unit) */ BYTE fmt, sys, *buf, *pte, pdrv, part; - WORD ss; + WORD ss; /* Sector size */ DWORD szb_buf, sz_buf, sz_blk, n_clst, pau, sect, nsect, n; DWORD b_vol, b_fat, b_data; /* Base LBA for volume, fat, data */ DWORD sz_vol, sz_rsv, sz_fat, sz_dir; /* Size for volume, fat, dir, data */ UINT i; int vol; DSTATUS stat; -#if _USE_TRIM || _FS_EXFAT +#if FF_USE_TRIM || FF_FS_EXFAT DWORD tbl[3]; #endif @@ -5236,7 +5530,7 @@ FRESULT f_mkfs ( /* Check mounted drive and clear work area */ vol = get_ldnumber(&path); /* Get target logical drive */ if (vol < 0) return FR_INVALID_DRIVE; - if (FatFs[vol]) FatFs[vol]->fs_type = 0; /* Clear mounted volume */ + if (FatFs[vol]) FatFs[vol]->fs_type = 0; /* Clear the volume if mounted */ pdrv = LD2PD(vol); /* Physical drive */ part = LD2PT(vol); /* Partition (0:create as new, 1-4:get from partition table) */ @@ -5245,70 +5539,78 @@ FRESULT f_mkfs ( if (stat & STA_NOINIT) return FR_NOT_READY; if (stat & STA_PROTECT) return FR_WRITE_PROTECTED; if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &sz_blk) != RES_OK || !sz_blk || sz_blk > 32768 || (sz_blk & (sz_blk - 1))) sz_blk = 1; /* Erase block to align data area */ -#if _MAX_SS != _MIN_SS /* Get sector size of the medium */ +#if FF_MAX_SS != FF_MIN_SS /* Get sector size of the medium if variable sector size cfg. */ if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &ss) != RES_OK) return FR_DISK_ERR; - if (ss > _MAX_SS || ss < _MIN_SS || (ss & (ss - 1))) return FR_DISK_ERR; + if (ss > FF_MAX_SS || ss < FF_MIN_SS || (ss & (ss - 1))) return FR_DISK_ERR; #else - ss = _MAX_SS; + ss = FF_MAX_SS; #endif if ((au != 0 && au < ss) || au > 0x1000000 || (au & (au - 1))) return FR_INVALID_PARAMETER; /* Check if au is valid */ au /= ss; /* Cluster size in unit of sector */ /* Get working buffer */ - buf = (BYTE*)work; /* Working buffer */ - sz_buf = len / ss; /* Size of working buffer (sector) */ - szb_buf = sz_buf * ss; /* Size of working buffer (byte) */ - if (!szb_buf) return FR_MKFS_ABORTED; +#if FF_USE_LFN == 3 + if (!work) { /* Use heap memory for working buffer */ + for (szb_buf = MAX_MALLOC, buf = 0; szb_buf >= ss && (buf = ff_memalloc(szb_buf)) == 0; szb_buf /= 2) ; + sz_buf = szb_buf / ss; /* Size of working buffer (sector) */ + } else +#endif + { + buf = (BYTE*)work; /* Working buffer */ + sz_buf = len / ss; /* Size of working buffer (sector) */ + szb_buf = sz_buf * ss; /* Size of working buffer (byte) */ + } + if (!buf || sz_buf == 0) return FR_NOT_ENOUGH_CORE; /* Determine where the volume to be located (b_vol, sz_vol) */ - if (_MULTI_PARTITION && part != 0) { + if (FF_MULTI_PARTITION && part != 0) { /* Get partition information from partition table in the MBR */ - if (disk_read(pdrv, buf, 0, 1) != RES_OK) return FR_DISK_ERR; /* Load MBR */ - if (ld_word(buf + BS_55AA) != 0xAA55) return FR_MKFS_ABORTED; /* Check if MBR is valid */ + if (disk_read(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Load MBR */ + if (ld_word(buf + BS_55AA) != 0xAA55) LEAVE_MKFS(FR_MKFS_ABORTED); /* Check if MBR is valid */ pte = buf + (MBR_Table + (part - 1) * SZ_PTE); - if (!pte[PTE_System]) return FR_MKFS_ABORTED; /* No partition? */ + if (pte[PTE_System] == 0) LEAVE_MKFS(FR_MKFS_ABORTED); /* No partition? */ b_vol = ld_dword(pte + PTE_StLba); /* Get volume start sector */ sz_vol = ld_dword(pte + PTE_SizLba); /* Get volume size */ } else { /* Create a single-partition in this function */ - if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_vol) != RES_OK) return FR_DISK_ERR; + if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_vol) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); b_vol = (opt & FM_SFD) ? 0 : 63; /* Volume start sector */ - if (sz_vol < b_vol) return FR_MKFS_ABORTED; + if (sz_vol < b_vol) LEAVE_MKFS(FR_MKFS_ABORTED); sz_vol -= b_vol; /* Volume size */ } - if (sz_vol < 128) return FR_MKFS_ABORTED; /* Check if volume size is >=128s */ + if (sz_vol < 128) LEAVE_MKFS(FR_MKFS_ABORTED); /* Check if volume size is >=128s */ /* Pre-determine the FAT type */ do { - if (_FS_EXFAT && (opt & FM_EXFAT)) { /* exFAT possible? */ + if (FF_FS_EXFAT && (opt & FM_EXFAT)) { /* exFAT possible? */ if ((opt & FM_ANY) == FM_EXFAT || sz_vol >= 0x4000000 || au > 128) { /* exFAT only, vol >= 64Ms or au > 128s ? */ fmt = FS_EXFAT; break; } } - if (au > 128) return FR_INVALID_PARAMETER; /* Too large au for FAT/FAT32 */ + if (au > 128) LEAVE_MKFS(FR_INVALID_PARAMETER); /* Too large au for FAT/FAT32 */ if (opt & FM_FAT32) { /* FAT32 possible? */ if ((opt & FM_ANY) == FM_FAT32 || !(opt & FM_FAT)) { /* FAT32 only or no-FAT? */ fmt = FS_FAT32; break; } } - if (!(opt & FM_FAT)) return FR_INVALID_PARAMETER; /* no-FAT? */ + if (!(opt & FM_FAT)) LEAVE_MKFS(FR_INVALID_PARAMETER); /* no-FAT? */ fmt = FS_FAT16; } while (0); -#if _FS_EXFAT +#if FF_FS_EXFAT if (fmt == FS_EXFAT) { /* Create an exFAT volume */ DWORD szb_bit, szb_case, sum, nb, cl; WCHAR ch, si; UINT j, st; BYTE b; - if (sz_vol < 0x1000) return FR_MKFS_ABORTED; /* Too small volume? */ -#if _USE_TRIM - tbl[0] = b_vol; tbl[1] = b_vol + sz_vol - 1; /* Inform the device the volume area can be erased */ + if (sz_vol < 0x1000) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume? */ +#if FF_USE_TRIM + tbl[0] = b_vol; tbl[1] = b_vol + sz_vol - 1; /* Inform the device the volume area may be erased */ disk_ioctl(pdrv, CTRL_TRIM, tbl); #endif /* Determine FAT location, data location and number of clusters */ - if (!au) { /* au auto-selection */ + if (au == 0) { /* au auto-selection */ au = 8; if (sz_vol >= 0x80000) au = 64; /* >= 512Ks */ if (sz_vol >= 0x4000000) au = 256; /* >= 64Ms */ @@ -5316,10 +5618,10 @@ FRESULT f_mkfs ( b_fat = b_vol + 32; /* FAT start at offset 32 */ sz_fat = ((sz_vol / au + 2) * 4 + ss - 1) / ss; /* Number of FAT sectors */ b_data = (b_fat + sz_fat + sz_blk - 1) & ~(sz_blk - 1); /* Align data area to the erase block boundary */ - if (b_data >= sz_vol / 2) return FR_MKFS_ABORTED; /* Too small volume? */ + if (b_data >= sz_vol / 2) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume? */ n_clst = (sz_vol - (b_data - b_vol)) / au; /* Number of clusters */ - if (n_clst <16) return FR_MKFS_ABORTED; /* Too few clusters? */ - if (n_clst > MAX_EXFAT) return FR_MKFS_ABORTED; /* Too many clusters? */ + if (n_clst <16) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too few clusters? */ + if (n_clst > MAX_EXFAT) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too many clusters? */ szb_bit = (n_clst + 7) / 8; /* Size of allocation bitmap */ tbl[0] = (szb_bit + au * ss - 1) / (au * ss); /* Number of allocation bitmap clusters */ @@ -5327,11 +5629,11 @@ FRESULT f_mkfs ( /* Create a compressed up-case table */ sect = b_data + au * tbl[0]; /* Table start sector */ sum = 0; /* Table checksum to be stored in the 82 entry */ - st = si = i = j = szb_case = 0; + st = 0; si = 0; i = 0; j = 0; szb_case = 0; do { switch (st) { case 0: - ch = ff_wtoupper(si); /* Get an up-case char */ + ch = (WCHAR)ff_wtoupper(si); /* Get an up-case char */ if (ch != si) { si++; break; /* Store the up-case char if exist */ } @@ -5340,21 +5642,22 @@ FRESULT f_mkfs ( ch = 0xFFFF; st = 2; break; /* Compress the no-case block if run is >= 128 */ } st = 1; /* Do not compress short run */ - /* continue */ + /* go to next case */ case 1: ch = si++; /* Fill the short run */ if (--j == 0) st = 0; break; + default: - ch = (WCHAR)j; si += j; /* Number of chars to skip */ + ch = (WCHAR)j; si += (WCHAR)j; /* Number of chars to skip */ st = 0; } sum = xsum32(buf[i + 0] = (BYTE)ch, sum); /* Put it into the write buffer */ sum = xsum32(buf[i + 1] = (BYTE)(ch >> 8), sum); i += 2; szb_case += 2; - if (!si || i == szb_buf) { /* Write buffered data when buffer full or end of process */ + if (si == 0 || i == szb_buf) { /* Write buffered data when buffer full or end of process */ n = (i + ss - 1) / ss; - if (disk_write(pdrv, buf, sect, n) != RES_OK) return FR_DISK_ERR; + if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); sect += n; i = 0; } } while (si); @@ -5367,9 +5670,9 @@ FRESULT f_mkfs ( do { mem_set(buf, 0, szb_buf); for (i = 0; nb >= 8 && i < szb_buf; buf[i++] = 0xFF, nb -= 8) ; - for (b = 1; nb && i < szb_buf; buf[i] |= b, b <<= 1, nb--) ; + for (b = 1; nb != 0 && i < szb_buf; buf[i] |= b, b <<= 1, nb--) ; n = (nsect > sz_buf) ? sz_buf : nsect; /* Write the buffered data */ - if (disk_write(pdrv, buf, sect, n) != RES_OK) return FR_DISK_ERR; + if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); sect += n; nsect -= n; } while (nsect); @@ -5383,14 +5686,14 @@ FRESULT f_mkfs ( st_dword(buf + i, 0xFFFFFFFF); i += 4; cl++; } do { /* Create chains of bitmap, up-case and root dir */ - while (nb && i < szb_buf) { /* Create a chain */ + while (nb != 0 && i < szb_buf) { /* Create a chain */ st_dword(buf + i, (nb > 1) ? cl + 1 : 0xFFFFFFFF); i += 4; cl++; nb--; } - if (!nb && j < 3) nb = tbl[j++]; /* Next chain */ - } while (nb && i < szb_buf); + if (nb == 0 && j < 3) nb = tbl[j++]; /* Next chain */ + } while (nb != 0 && i < szb_buf); n = (nsect > sz_buf) ? sz_buf : nsect; /* Write the buffered data */ - if (disk_write(pdrv, buf, sect, n) != RES_OK) return FR_DISK_ERR; + if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); sect += n; nsect -= n; } while (nsect); @@ -5398,16 +5701,16 @@ FRESULT f_mkfs ( mem_set(buf, 0, szb_buf); buf[SZDIRE * 0 + 0] = 0x83; /* 83 entry (volume label) */ buf[SZDIRE * 1 + 0] = 0x81; /* 81 entry (allocation bitmap) */ - st_dword(buf + SZDIRE * 1 + 20, 2); - st_dword(buf + SZDIRE * 1 + 24, szb_bit); + st_dword(buf + SZDIRE * 1 + 20, 2); /* cluster */ + st_dword(buf + SZDIRE * 1 + 24, szb_bit); /* size */ buf[SZDIRE * 2 + 0] = 0x82; /* 82 entry (up-case table) */ - st_dword(buf + SZDIRE * 2 + 4, sum); - st_dword(buf + SZDIRE * 2 + 20, 2 + tbl[0]); - st_dword(buf + SZDIRE * 2 + 24, szb_case); + st_dword(buf + SZDIRE * 2 + 4, sum); /* sum */ + st_dword(buf + SZDIRE * 2 + 20, 2 + tbl[0]); /* cluster */ + st_dword(buf + SZDIRE * 2 + 24, szb_case); /* size */ sect = b_data + au * (tbl[0] + tbl[1]); nsect = au; /* Start of the root directory and number of sectors */ do { /* Fill root directory sectors */ n = (nsect > sz_buf) ? sz_buf : nsect; - if (disk_write(pdrv, buf, sect, n) != RES_OK) return FR_DISK_ERR; + if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); mem_set(buf, 0, ss); sect += n; nsect -= n; } while (nsect); @@ -5426,7 +5729,7 @@ FRESULT f_mkfs ( st_dword(buf + BPB_NumClusEx, n_clst); /* Number of clusters */ st_dword(buf + BPB_RootClusEx, 2 + tbl[0] + tbl[1]); /* Root dir cluster # */ st_dword(buf + BPB_VolIDEx, GET_FATTIME()); /* VSN */ - st_word(buf + BPB_FSVerEx, 0x100); /* File system version (1.00) */ + st_word(buf + BPB_FSVerEx, 0x100); /* Filesystem version (1.00) */ for (buf[BPB_BytsPerSecEx] = 0, i = ss; i >>= 1; buf[BPB_BytsPerSecEx]++) ; /* Log2 of sector size [byte] */ for (buf[BPB_SecPerClusEx] = 0, i = au; i >>= 1; buf[BPB_SecPerClusEx]++) ; /* Log2 of cluster size [sector] */ buf[BPB_NumFATsEx] = 1; /* Number of FATs */ @@ -5436,33 +5739,33 @@ FRESULT f_mkfs ( for (i = sum = 0; i < ss; i++) { /* VBR checksum */ if (i != BPB_VolFlagEx && i != BPB_VolFlagEx + 1 && i != BPB_PercInUseEx) sum = xsum32(buf[i], sum); } - if (disk_write(pdrv, buf, sect++, 1) != RES_OK) return FR_DISK_ERR; + if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Extended bootstrap record (+1..+8) */ mem_set(buf, 0, ss); st_word(buf + ss - 2, 0xAA55); /* Signature (placed at end of sector) */ for (j = 1; j < 9; j++) { for (i = 0; i < ss; sum = xsum32(buf[i++], sum)) ; /* VBR checksum */ - if (disk_write(pdrv, buf, sect++, 1) != RES_OK) return FR_DISK_ERR; + if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); } /* OEM/Reserved record (+9..+10) */ mem_set(buf, 0, ss); for ( ; j < 11; j++) { for (i = 0; i < ss; sum = xsum32(buf[i++], sum)) ; /* VBR checksum */ - if (disk_write(pdrv, buf, sect++, 1) != RES_OK) return FR_DISK_ERR; + if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); } /* Sum record (+11) */ for (i = 0; i < ss; i += 4) st_dword(buf + i, sum); /* Fill with checksum value */ - if (disk_write(pdrv, buf, sect++, 1) != RES_OK) return FR_DISK_ERR; + if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); } } else -#endif /* _FS_EXFAT */ - { /* Create an FAT12/16/32 volume */ +#endif /* FF_FS_EXFAT */ + { /* Create an FAT/FAT32 volume */ do { pau = au; /* Pre-determine number of clusters and FAT sub-type */ if (fmt == FS_FAT32) { /* FAT32 volume */ - if (!pau) { /* au auto-selection */ + if (pau == 0) { /* au auto-selection */ n = sz_vol / 0x20000; /* Volume size in unit of 128KS */ for (i = 0, pau = 1; cst32[i] && cst32[i] <= n; i++, pau <<= 1) ; /* Get from table */ } @@ -5470,9 +5773,9 @@ FRESULT f_mkfs ( sz_fat = (n_clst * 4 + 8 + ss - 1) / ss; /* FAT size [sector] */ sz_rsv = 32; /* Number of reserved sectors */ sz_dir = 0; /* No static directory */ - if (n_clst <= MAX_FAT16 || n_clst > MAX_FAT32) return FR_MKFS_ABORTED; - } else { /* FAT12/16 volume */ - if (!pau) { /* au auto-selection */ + if (n_clst <= MAX_FAT16 || n_clst > MAX_FAT32) LEAVE_MKFS(FR_MKFS_ABORTED); + } else { /* FAT volume */ + if (pau == 0) { /* au auto-selection */ n = sz_vol / 0x1000; /* Volume size in unit of 4KS */ for (i = 0, pau = 1; cst[i] && cst[i] <= n; i++, pau <<= 1) ; /* Get from table */ } @@ -5494,42 +5797,42 @@ FRESULT f_mkfs ( n = ((b_data + sz_blk - 1) & ~(sz_blk - 1)) - b_data; /* Next nearest erase block from current data base */ if (fmt == FS_FAT32) { /* FAT32: Move FAT base */ sz_rsv += n; b_fat += n; - } else { /* FAT12/16: Expand FAT size */ + } else { /* FAT: Expand FAT size */ sz_fat += n / n_fats; } /* Determine number of clusters and final check of validity of the FAT sub-type */ - if (sz_vol < b_data + pau * 16 - b_vol) return FR_MKFS_ABORTED; /* Too small volume */ + if (sz_vol < b_data + pau * 16 - b_vol) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume */ n_clst = (sz_vol - sz_rsv - sz_fat * n_fats - sz_dir) / pau; if (fmt == FS_FAT32) { if (n_clst <= MAX_FAT16) { /* Too few clusters for FAT32 */ - if (!au && (au = pau / 2) != 0) continue; /* Adjust cluster size and retry */ - return FR_MKFS_ABORTED; + if (au == 0 && (au = pau / 2) != 0) continue; /* Adjust cluster size and retry */ + LEAVE_MKFS(FR_MKFS_ABORTED); } } if (fmt == FS_FAT16) { if (n_clst > MAX_FAT16) { /* Too many clusters for FAT16 */ - if (!au && (pau * 2) <= 64) { + if (au == 0 && (pau * 2) <= 64) { au = pau * 2; continue; /* Adjust cluster size and retry */ } if ((opt & FM_FAT32)) { fmt = FS_FAT32; continue; /* Switch type to FAT32 and retry */ } - if (!au && (au = pau * 2) <= 128) continue; /* Adjust cluster size and retry */ - return FR_MKFS_ABORTED; + if (au == 0 && (au = pau * 2) <= 128) continue; /* Adjust cluster size and retry */ + LEAVE_MKFS(FR_MKFS_ABORTED); } if (n_clst <= MAX_FAT12) { /* Too few clusters for FAT16 */ - if (!au && (au = pau * 2) <= 128) continue; /* Adjust cluster size and retry */ - return FR_MKFS_ABORTED; + if (au == 0 && (au = pau * 2) <= 128) continue; /* Adjust cluster size and retry */ + LEAVE_MKFS(FR_MKFS_ABORTED); } } - if (fmt == FS_FAT12 && n_clst > MAX_FAT12) return FR_MKFS_ABORTED; /* Too many clusters for FAT12 */ + if (fmt == FS_FAT12 && n_clst > MAX_FAT12) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too many clusters for FAT12 */ /* Ok, it is the valid cluster configuration */ break; } while (1); -#if _USE_TRIM +#if FF_USE_TRIM tbl[0] = b_vol; tbl[1] = b_vol + sz_vol - 1; /* Inform the device the volume area can be erased */ disk_ioctl(pdrv, CTRL_TRIM, tbl); #endif @@ -5567,7 +5870,7 @@ FRESULT f_mkfs ( mem_cpy(buf + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */ } st_word(buf + BS_55AA, 0xAA55); /* Signature (offset is fixed here regardless of sector size) */ - if (disk_write(pdrv, buf, b_vol, 1) != RES_OK) return FR_DISK_ERR; /* Write it to the VBR sector */ + if (disk_write(pdrv, buf, b_vol, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it to the VBR sector */ /* Create FSINFO record if needed */ if (fmt == FS_FAT32) { @@ -5596,7 +5899,7 @@ FRESULT f_mkfs ( nsect = sz_fat; /* Number of FAT sectors */ do { /* Fill FAT sectors */ n = (nsect > sz_buf) ? sz_buf : nsect; - if (disk_write(pdrv, buf, sect, (UINT)n) != RES_OK) return FR_DISK_ERR; + if (disk_write(pdrv, buf, sect, (UINT)n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); mem_set(buf, 0, ss); sect += n; nsect -= n; } while (nsect); @@ -5606,34 +5909,34 @@ FRESULT f_mkfs ( nsect = (fmt == FS_FAT32) ? pau : sz_dir; /* Number of root directory sectors */ do { n = (nsect > sz_buf) ? sz_buf : nsect; - if (disk_write(pdrv, buf, sect, (UINT)n) != RES_OK) return FR_DISK_ERR; + if (disk_write(pdrv, buf, sect, (UINT)n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); sect += n; nsect -= n; } while (nsect); } /* Determine system ID in the partition table */ - if (_FS_EXFAT && fmt == FS_EXFAT) { + if (FF_FS_EXFAT && fmt == FS_EXFAT) { sys = 0x07; /* HPFS/NTFS/exFAT */ } else { if (fmt == FS_FAT32) { sys = 0x0C; /* FAT32X */ } else { if (sz_vol >= 0x10000) { - sys = 0x06; /* FAT12/16 (>=64KS) */ + sys = 0x06; /* FAT12/16 (large) */ } else { - sys = (fmt == FS_FAT16) ? 0x04 : 0x01; /* FAT16 (<64KS) : FAT12 (<64KS) */ + sys = (fmt == FS_FAT16) ? 0x04 : 0x01; /* FAT16 : FAT12 */ } } } - if (_MULTI_PARTITION && part != 0) { + /* Update partition information */ + if (FF_MULTI_PARTITION && part != 0) { /* Created in the existing partition */ /* Update system ID in the partition table */ - if (disk_read(pdrv, buf, 0, 1) != RES_OK) return FR_DISK_ERR; /* Read the MBR */ - buf[MBR_Table + (part - 1) * SZ_PTE + PTE_System] = sys; /* Set system type */ - if (disk_write(pdrv, buf, 0, 1) != RES_OK) return FR_DISK_ERR; /* Write it back to the MBR */ - } else { - if (!(opt & FM_SFD)) { - /* Create partition table in FDISK format */ + if (disk_read(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Read the MBR */ + buf[MBR_Table + (part - 1) * SZ_PTE + PTE_System] = sys; /* Set system ID */ + if (disk_write(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it back to the MBR */ + } else { /* Created as a new single partition */ + if (!(opt & FM_SFD)) { /* Create partition table if in FDISK format */ mem_set(buf, 0, ss); st_word(buf + BS_55AA, 0xAA55); /* MBR signature */ pte = buf + MBR_Table; /* Create partition table for single partition in the drive */ @@ -5642,38 +5945,39 @@ FRESULT f_mkfs ( pte[PTE_StSec] = 1; /* Start sector */ pte[PTE_StCyl] = 0; /* Start cylinder */ pte[PTE_System] = sys; /* System type */ - n = (b_vol + sz_vol) / (63 * 255); /* (End CHS is incorrect) */ + n = (b_vol + sz_vol) / (63 * 255); /* (End CHS may be invalid) */ pte[PTE_EdHead] = 254; /* End head */ - pte[PTE_EdSec] = (BYTE)(n >> 2 | 63); /* End sector */ + pte[PTE_EdSec] = (BYTE)(((n >> 2) & 0xC0) | 63); /* End sector */ pte[PTE_EdCyl] = (BYTE)n; /* End cylinder */ st_dword(pte + PTE_StLba, b_vol); /* Start offset in LBA */ st_dword(pte + PTE_SizLba, sz_vol); /* Size in sectors */ - if (disk_write(pdrv, buf, 0, 1) != RES_OK) return FR_DISK_ERR; /* Write it to the MBR */ + if (disk_write(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it to the MBR */ } } - if (disk_ioctl(pdrv, CTRL_SYNC, 0) != RES_OK) return FR_DISK_ERR; + if (disk_ioctl(pdrv, CTRL_SYNC, 0) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); - return FR_OK; + LEAVE_MKFS(FR_OK); } -#if _MULTI_PARTITION +#if FF_MULTI_PARTITION /*-----------------------------------------------------------------------*/ -/* Create partition table on the physical drive */ +/* 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 */ + void* work /* Pointer to the working buffer (null: use heap memory) */ ) { 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; + FRESULT res; stat = disk_initialize(pdrv); @@ -5681,19 +5985,25 @@ FRESULT f_fdisk ( if (stat & STA_PROTECT) return FR_WRITE_PROTECTED; if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR; - /* Determine the CHS without any care of the drive geometry */ + buf = (BYTE*)work; +#if FF_USE_LFN == 3 + if (!buf) buf = ff_memalloc(FF_MAX_SS); /* Use heap memory for working buffer */ +#endif + if (!buf) return FR_NOT_ENOUGH_CORE; + + /* Determine the CHS without any consideration of the drive geometry */ for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ; if (n == 256) n--; - e_hd = n - 1; + e_hd = (BYTE)(n - 1); sz_cyl = 63 * n; tot_cyl = sz_disk / sz_cyl; /* Create partition table */ - mem_set(buf, 0, _MAX_SS); + mem_set(buf, 0, FF_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; + p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl; /* Number of cylinders */ + if (p_cyl == 0) continue; s_part = (DWORD)sz_cyl * b_cyl; sz_part = (DWORD)sz_cyl * p_cyl; if (i == 0) { /* Exclude first track of cylinder 0 */ @@ -5702,122 +6012,181 @@ FRESULT f_fdisk ( } else { s_hd = 0; } - e_cyl = b_cyl + p_cyl - 1; - if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER; + e_cyl = b_cyl + p_cyl - 1; /* End cylinder */ + if (e_cyl >= tot_cyl) LEAVE_MKFS(FR_INVALID_PARAMETER); /* Set partition table */ p[1] = s_hd; /* Start head */ - p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */ + p[2] = (BYTE)(((b_cyl >> 2) & 0xC0) | 1); /* Start sector */ p[3] = (BYTE)b_cyl; /* Start cylinder */ - p[4] = 0x06; /* System type (temporary setting) */ + p[4] = 0x07; /* System type (temporary setting) */ p[5] = e_hd; /* End head */ - p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */ + p[6] = (BYTE)(((e_cyl >> 2) & 0xC0) | 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 */ + st_dword(p + 12, sz_part); /* Number of sectors */ /* Next partition */ b_cyl += p_cyl; } - st_word(p, 0xAA55); + st_word(p, 0xAA55); /* MBR signature (always at offset 510) */ /* 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; + res = (disk_write(pdrv, buf, 0, 1) == RES_OK && disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR; + LEAVE_MKFS(res); } -#endif /* _MULTI_PARTITION */ -#endif /* _USE_MKFS && !_FS_READONLY */ +#endif /* FF_MULTI_PARTITION */ +#endif /* FF_USE_MKFS && !FF_FS_READONLY */ -#if _USE_STRFUNC +#if FF_USE_STRFUNC +#if FF_USE_LFN && FF_LFN_UNICODE && (FF_STRF_ENCODE < 0 || FF_STRF_ENCODE > 3) +#error Wrong FF_STRF_ENCODE setting +#endif /*-----------------------------------------------------------------------*/ -/* Get a string from the file */ +/* 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) */ + int len, /* Size of string buffer (items) */ FIL* fp /* Pointer to the file object */ ) { - int n = 0; - TCHAR c, *p = buff; - BYTE s[2]; + int nc = 0; + TCHAR *p = buff; + BYTE s[4]; UINT rc; + DWORD dc; +#if FF_USE_LFN && FF_LFN_UNICODE && FF_STRF_ENCODE <= 2 + WCHAR wc; +#endif +#if FF_USE_LFN && FF_LFN_UNICODE && FF_STRF_ENCODE == 3 + UINT ct; +#endif - - while (n < len - 1) { /* Read characters until buffer gets filled */ -#if _LFN_UNICODE -#if _STRF_ENCODE == 3 /* Read a character in UTF-8 */ +#if FF_USE_LFN && FF_LFN_UNICODE /* With code conversion (Unicode API) */ + /* Make a room for the character and terminator */ + if (FF_LFN_UNICODE == 1) len -= (FF_STRF_ENCODE == 0) ? 1 : 2; + if (FF_LFN_UNICODE == 2) len -= (FF_STRF_ENCODE == 0) ? 3 : 4; + if (FF_LFN_UNICODE == 3) len -= 1; + while (nc < len) { +#if FF_STRF_ENCODE == 0 /* Read a character in ANSI/OEM */ 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 = '?'; - } - } + wc = s[0]; + if (dbc_1st((BYTE)wc)) { + f_read(fp, s, 1, &rc); + if (rc != 1 || !dbc_2nd(s[0])) continue; + wc = wc << 8 | s[0]; } -#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 */ + dc = ff_oem2uni(wc, CODEPAGE); + if (dc == 0) continue; +#elif FF_STRF_ENCODE == 1 || FF_STRF_ENCODE == 2 /* Read a character in UTF-16LE/BE */ f_read(fp, s, 2, &rc); if (rc != 2) break; - c = s[0] + (s[1] << 8); -#else /* Read a character in ANSI/OEM */ + dc = (FF_STRF_ENCODE == 1) ? ld_word(s) : s[0] << 8 | s[1]; + if (IsSurrogateL(dc)) continue; + if (IsSurrogateH(dc)) { + f_read(fp, s, 2, &rc); + if (rc != 2) break; + wc = (FF_STRF_ENCODE == 1) ? ld_word(s) : s[0] << 8 | s[1]; + if (!IsSurrogateL(wc)) continue; + dc = ((dc & 0x3FF) + 0x40) << 10 | (wc & 0x3FF); + } +#else /* Read a character in UTF-8 */ 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]; + dc = s[0]; + if (dc >= 0x80) { /* Multi-byte character? */ + ct = 0; + if ((dc & 0xE0) == 0xC0) { dc &= 0x1F; ct = 1; } /* 2-byte? */ + if ((dc & 0xF0) == 0xE0) { dc &= 0x0F; ct = 2; } /* 3-byte? */ + if ((dc & 0xF8) == 0xF0) { dc &= 0x07; ct = 3; } /* 4-byte? */ + if (ct == 0) continue; + f_read(fp, s, ct, &rc); /* Get trailing bytes */ + if (rc != ct) break; + rc = 0; + do { /* Merge trailing bytes */ + if ((s[rc] & 0xC0) != 0x80) break; + dc = dc << 6 | (s[rc] & 0x3F); + } while (++rc < ct); + if (rc != ct || dc < 0x80 || IsSurrogate(dc) || dc >= 0x110000) continue; /* Wrong encoding? */ + } +#endif + if (FF_USE_STRFUNC == 2 && dc == '\r') continue; /* Strip \r off if needed */ +#if FF_LFN_UNICODE == 1 || FF_LFN_UNICODE == 3 /* Output it in UTF-16/32 encoding */ + if (FF_LFN_UNICODE == 1 && dc >= 0x10000) { /* Out of BMP at UTF-16? */ + *p++ = (TCHAR)(0xD800 | ((dc >> 10) - 0x40)); nc++; /* Make and output high surrogate */ + dc = 0xDC00 | (dc & 0x3FF); /* Make low surrogate */ + } + *p++ = (TCHAR)dc; nc++; + if (dc == '\n') break; /* End of line? */ +#elif FF_LFN_UNICODE == 2 /* Output it in UTF-8 encoding */ + if (dc < 0x80) { /* 1-byte */ + *p++ = (TCHAR)dc; + nc++; + if (dc == '\n') break; /* End of line? */ + } else { + if (dc < 0x800) { /* 2-byte */ + *p++ = (TCHAR)(0xC0 | (dc >> 6 & 0x1F)); + *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F)); + nc += 2; + } else { + if (dc < 0x10000) { /* 3-byte */ + *p++ = (TCHAR)(0xE0 | (dc >> 12 & 0x0F)); + *p++ = (TCHAR)(0x80 | (dc >> 6 & 0x3F)); + *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F)); + nc += 3; + } else { /* 4-byte */ + *p++ = (TCHAR)(0xF0 | (dc >> 18 & 0x07)); + *p++ = (TCHAR)(0x80 | (dc >> 12 & 0x3F)); + *p++ = (TCHAR)(0x80 | (dc >> 6 & 0x3F)); + *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F)); + nc += 4; + } + } } - c = ff_convert(c, 1); /* OEM -> Unicode */ - if (!c) c = '?'; #endif -#else /* Read a character without conversion */ + } + +#else /* Byte-by-byte without any conversion (ANSI/OEM API) */ + len -= 1; /* Make a room for the terminator */ + while (nc < len) { 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 */ + dc = s[0]; + if (FF_USE_STRFUNC == 2 && dc == '\r') continue; + *p++ = (TCHAR)dc; nc++; + if (dc == '\n') break; } - *p = 0; - return n ? buff : 0; /* When no data read (eof or error), return with error. */ +#endif + + *p = 0; /* Terminate the string */ + return nc ? buff : 0; /* When no data read due to EOF or error, return with error. */ } -#if !_FS_READONLY +#if !FF_FS_READONLY #include /*-----------------------------------------------------------------------*/ -/* Put a character to the file */ +/* Put a Character to the File */ /*-----------------------------------------------------------------------*/ -typedef struct { +typedef struct { /* Putchar output buffer and work area */ FIL *fp; /* Ptr to the writing file */ - int idx, nchr; /* Write index of buf[] (-1:error), number of chars written */ + int idx, nchr; /* Write index of buf[] (-1:error), number of encoding units written */ +#if FF_USE_LFN && FF_LFN_UNICODE == 1 + WCHAR hs; +#elif FF_USE_LFN && FF_LFN_UNICODE == 2 + BYTE bs[4]; + UINT wi, ct; +#endif BYTE buf[64]; /* Write buffer */ } putbuff; @@ -5828,53 +6197,129 @@ void putc_bfd ( /* Buffered write with code conversion */ TCHAR c ) { - UINT bw; - int i; - + UINT n; + int i, nc; +#if FF_USE_LFN && FF_LFN_UNICODE + WCHAR hs, wc; +#if FF_LFN_UNICODE == 2 + DWORD dc; + TCHAR *tp; +#endif +#endif - if (_USE_STRFUNC == 2 && c == '\n') { /* LF -> CRLF conversion */ + if (FF_USE_STRFUNC == 2 && c == '\n') { /* LF -> CRLF conversion */ putc_bfd(pb, '\r'); } - i = pb->idx; /* Write index of pb->buf[] */ + i = pb->idx; /* Write index of pb->buf[] */ if (i < 0) return; + nc = pb->nchr; /* Write unit counter */ -#if _LFN_UNICODE -#if _STRF_ENCODE == 3 /* Write a character in UTF-8 */ - if (c < 0x80) { /* 7-bit */ - pb->buf[i++] = (BYTE)c; +#if FF_USE_LFN && FF_LFN_UNICODE +#if FF_LFN_UNICODE == 1 /* UTF-16 input */ + if (IsSurrogateH(c)) { + pb->hs = c; return; + } + hs = pb->hs; pb->hs = 0; + if (hs != 0) { + if (!IsSurrogateL(c)) hs = 0; } 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)); + if (IsSurrogateL(c)) return; + } + wc = c; +#elif FF_LFN_UNICODE == 2 /* UTF-8 input */ + for (;;) { + if (pb->ct == 0) { /* Out of multi-byte sequence? */ + pb->bs[pb->wi = 0] = (BYTE)c; /* Save 1st byte */ + if ((BYTE)c < 0x80) break; /* 1-byte? */ + if (((BYTE)c & 0xE0) == 0xC0) pb->ct = 1; /* 2-byte? */ + if (((BYTE)c & 0xF0) == 0xE0) pb->ct = 2; /* 3-byte? */ + if (((BYTE)c & 0xF1) == 0xF0) pb->ct = 3; /* 4-byte? */ + return; + } else { /* In the multi-byte sequence */ + if (((BYTE)c & 0xC0) != 0x80) { /* Broken sequence? */ + pb->ct = 0; continue; + } + pb->bs[++pb->wi] = (BYTE)c; /* Save the trailing byte */ + if (--pb->ct == 0) break; /* End of multi-byte sequence? */ + return; } - 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; + tp = (TCHAR*)pb->bs; + dc = tchar2uni(&tp); /* UTF-8 ==> UTF-16 */ + if (dc == 0xFFFFFFFF) return; + wc = (WCHAR)dc; + hs = (WCHAR)(dc >> 16); +#elif FF_LFN_UNICODE == 3 /* UTF-32 input */ + if (IsSurrogate(c) || c >= 0x110000) return; + if (c >= 0x10000) { + hs = (WCHAR)(0xD800 | ((c >> 10) - 0x40)); /* Make high surrogate */ + wc = 0xDC00 | (c & 0x3FF); /* Make low surrogate */ + } else { + hs = 0; + wc = (WCHAR)c; + } +#endif + +#if FF_STRF_ENCODE == 1 /* Write a character in UTF-16LE */ + if (hs != 0) { + st_word(&pb->buf[i], hs); + i += 2; + nc++; + } + st_word(&pb->buf[i], wc); + i += 2; +#elif FF_STRF_ENCODE == 2 /* Write a character in UTF-16BE */ + if (hs != 0) { + pb->buf[i++] = (BYTE)(hs >> 8); + pb->buf[i++] = (BYTE)hs; + nc++; + } + pb->buf[i++] = (BYTE)(wc >> 8); + pb->buf[i++] = (BYTE)wc; +#elif FF_STRF_ENCODE == 3 /* Write it in UTF-8 */ + if (hs != 0) { /* 4-byte */ + nc += 3; + hs = (hs & 0x3FF) + 0x40; + pb->buf[i++] = (BYTE)(0xF0 | hs >> 8); + pb->buf[i++] = (BYTE)(0x80 | (hs >> 2 & 0x3F)); + pb->buf[i++] = (BYTE)(0x80 | (hs & 3) << 4 | (wc >> 6 & 0x0F)); + pb->buf[i++] = (BYTE)(0x80 | (wc & 0x3F)); + } else { + if (wc < 0x80) { /* 1-byte */ + pb->buf[i++] = (BYTE)wc; + } else { + if (wc < 0x800) { /* 2-byte */ + nc += 1; + pb->buf[i++] = (BYTE)(0xC0 | wc >> 6); + } else { /* 3-byte */ + nc += 2; + pb->buf[i++] = (BYTE)(0xE0 | wc >> 12); + pb->buf[i++] = (BYTE)(0x80 | (wc >> 6 & 0x3F)); + } + pb->buf[i++] = (BYTE)(0x80 | (wc & 0x3F)); + } + } +#else /* Write it in ANSI/OEM */ + if (hs != 0) return; + wc = ff_uni2oem(wc, CODEPAGE); /* UTF-16 ==> ANSI/OEM */ + if (wc == 0) return;; + if (wc >= 0x100) { + pb->buf[i++] = (BYTE)(wc >> 8); nc++; + } + pb->buf[i++] = (BYTE)wc; #endif -#else /* Write a character without conversion */ + +#else /* ANSI/OEM input (without re-encode) */ 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; + if (i >= (int)(sizeof pb->buf) - 4) { /* Write buffered characters to the file */ + f_write(pb->fp, pb->buf, (UINT)i, &n); + i = (n == (UINT)i) ? 0 : -1; } pb->idx = i; - pb->nchr++; + pb->nchr = nc + 1; } @@ -5898,8 +6343,8 @@ void putc_init ( /* Initialize write buffer */ FIL* fp ) { + mem_set(pb, 0, sizeof (putbuff)); pb->fp = fp; - pb->nchr = pb->idx = 0; } @@ -5921,7 +6366,7 @@ int f_putc ( /*-----------------------------------------------------------------------*/ -/* Put a string to the file */ +/* Put a String to the File */ /*-----------------------------------------------------------------------*/ int f_puts ( @@ -5941,7 +6386,7 @@ int f_puts ( /*-----------------------------------------------------------------------*/ -/* Put a formatted string to the file */ +/* Put a Formatted String to the File */ /*-----------------------------------------------------------------------*/ int f_printf ( @@ -5978,37 +6423,48 @@ int f_printf ( f = 2; c = *fmt++; } } - while (IsDigit(c)) { /* Precision */ - w = w * 10 + c - '0'; + if (c == '*') { /* Minimum width by argument */ + w = va_arg(arp, int); c = *fmt++; + } else { + while (IsDigit(c)) { /* Minimum width */ + w = w * 10 + c - '0'; + c = *fmt++; + } } - if (c == 'l' || c == 'L') { /* Prefix: Size is long int */ + if (c == 'l' || c == 'L') { /* Type prefix: Size is long int */ f |= 4; c = *fmt++; } - if (!c) break; + if (c == 0) break; d = c; if (IsLower(d)) d -= 0x20; - switch (d) { /* Type is... */ + switch (d) { /* Atgument 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, ' '); + if (!(f & 2)) { /* Right padded */ + while (j++ < w) putc_bfd(&pb, ' ') ; } - while (*p) putc_bfd(&pb, *p++); - while (j++ < w) putc_bfd(&pb, ' '); + while (*p) putc_bfd(&pb, *p++) ; /* String body */ + while (j++ < w) putc_bfd(&pb, ' ') ; /* Left padded */ continue; + case 'C' : /* Character */ putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue; - case 'B' : /* Binary */ + + case 'B' : /* Unsigned binary */ r = 2; break; - case 'O' : /* Octal */ + + case 'O' : /* Unsigned octal */ r = 8; break; + case 'D' : /* Signed decimal */ case 'U' : /* Unsigned decimal */ r = 10; break; - case 'X' : /* Hexdecimal */ + + case 'X' : /* Unsigned hexdecimal */ r = 16; break; + default: /* Unknown type (pass-through) */ putc_bfd(&pb, c); continue; } @@ -6024,12 +6480,16 @@ int f_printf ( d = (TCHAR)(v % r); v /= r; if (d > 9) d += (c == 'x') ? 0x27 : 0x07; str[i++] = d + '0'; - } while (v && i < sizeof str / sizeof str[0]); + } while (v && i < sizeof str / sizeof *str); if (f & 8) str[i++] = '-'; j = i; d = (f & 1) ? '0' : ' '; - while (!(f & 2) && j++ < w) putc_bfd(&pb, d); - do putc_bfd(&pb, str[--i]); while (i); - while (j++ < w) putc_bfd(&pb, d); + if (!(f & 2)) { + while (j++ < w) putc_bfd(&pb, d); /* Right pad */ + } + do { + putc_bfd(&pb, str[--i]); /* Number body */ + } while (i); + while (j++ < w) putc_bfd(&pb, d); /* Left pad */ } va_end(arp); @@ -6037,5 +6497,37 @@ int f_printf ( return putc_flush(&pb); } -#endif /* !_FS_READONLY */ -#endif /* _USE_STRFUNC */ +#endif /* !FF_FS_READONLY */ +#endif /* FF_USE_STRFUNC */ + + + +#if FF_CODE_PAGE == 0 +/*-----------------------------------------------------------------------*/ +/* Set Active Codepage for the Path Name */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_setcp ( + WORD cp /* Value to be set as active code page */ +) +{ + static const WORD validcp[] = { 437, 720, 737, 771, 775, 850, 852, 857, 860, 861, 862, 863, 864, 865, 866, 869, 932, 936, 949, 950, 0}; + static const BYTE* const tables[] = {Ct437, Ct720, Ct737, Ct771, Ct775, Ct850, Ct852, Ct857, Ct860, Ct861, Ct862, Ct863, Ct864, Ct865, Ct866, Ct869, Dc932, Dc936, Dc949, Dc950, 0}; + UINT i; + + + for (i = 0; validcp[i] != 0 && validcp[i] != cp; i++) ; /* Find the code page */ + if (validcp[i] != cp) return FR_INVALID_PARAMETER; /* Not found? */ + + CodePage = cp; + if (cp >= 900) { /* DBCS */ + ExCvt = 0; + DbcTbl = tables[i]; + } else { /* SBCS */ + ExCvt = tables[i]; + DbcTbl = 0; + } + return FR_OK; +} +#endif /* FF_CODE_PAGE == 0 */ +