SDFileSystem - Library for SD card

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Library for SD card

Dependents: City_Game_JSON saver-noenvio-1 SNOCC_V2 lab7_prog1 ... more

FATFileSystem/ChaN/ff.cpp@0:3bdfc1556537, 2017-03-29 (annotated)

Committer:: AlexVC97
Date:: Wed Mar 29 07:00:22 2017 +0000
Revision:: 0:3bdfc1556537

SDFileSystem Library

Who changed what in which revision?

User	Revision	Line number	New contents of line
AlexVC97	0:3bdfc1556537	1	/*----------------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2	/ FatFs - FAT file system module R0.11a (C)ChaN, 2015 /
AlexVC97	0:3bdfc1556537	3	/-----------------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4	/ FatFs module is a free software that opened under license policy of
AlexVC97	0:3bdfc1556537	5	/ following conditions.
AlexVC97	0:3bdfc1556537	6	/
AlexVC97	0:3bdfc1556537	7	/ Copyright (C) 2015, ChaN, all right reserved.
AlexVC97	0:3bdfc1556537	8	/
AlexVC97	0:3bdfc1556537	9	/ 1. Redistributions of source code must retain the above copyright notice,
AlexVC97	0:3bdfc1556537	10	/ this condition and the following disclaimer.
AlexVC97	0:3bdfc1556537	11	/
AlexVC97	0:3bdfc1556537	12	/ This software is provided by the copyright holder and contributors "AS IS"
AlexVC97	0:3bdfc1556537	13	/ and any warranties related to this software are DISCLAIMED.
AlexVC97	0:3bdfc1556537	14	/ The copyright owner or contributors be NOT LIABLE for any damages caused
AlexVC97	0:3bdfc1556537	15	/ by use of this software.
AlexVC97	0:3bdfc1556537	16	/----------------------------------------------------------------------------*/
AlexVC97	0:3bdfc1556537	17
AlexVC97	0:3bdfc1556537	18
AlexVC97	0:3bdfc1556537	19	#include "ff.h" /* Declarations of FatFs API */
AlexVC97	0:3bdfc1556537	20	#include "diskio.h" /* Declarations of disk I/O functions */
AlexVC97	0:3bdfc1556537	21
AlexVC97	0:3bdfc1556537	22
AlexVC97	0:3bdfc1556537	23	/*--------------------------------------------------------------------------
AlexVC97	0:3bdfc1556537	24
AlexVC97	0:3bdfc1556537	25	Module Private Definitions
AlexVC97	0:3bdfc1556537	26
AlexVC97	0:3bdfc1556537	27	---------------------------------------------------------------------------*/
AlexVC97	0:3bdfc1556537	28
AlexVC97	0:3bdfc1556537	29	#if _FATFS != 64180 /* Revision ID */
AlexVC97	0:3bdfc1556537	30	#error Wrong include file (ff.h).
AlexVC97	0:3bdfc1556537	31	#endif
AlexVC97	0:3bdfc1556537	32
AlexVC97	0:3bdfc1556537	33
AlexVC97	0:3bdfc1556537	34	/* Reentrancy related */
AlexVC97	0:3bdfc1556537	35	#if _FS_REENTRANT
AlexVC97	0:3bdfc1556537	36	#if _USE_LFN == 1
AlexVC97	0:3bdfc1556537	37	#error Static LFN work area cannot be used at thread-safe configuration
AlexVC97	0:3bdfc1556537	38	#endif
AlexVC97	0:3bdfc1556537	39	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
AlexVC97	0:3bdfc1556537	40	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
AlexVC97	0:3bdfc1556537	41	#else
AlexVC97	0:3bdfc1556537	42	#define ENTER_FF(fs)
AlexVC97	0:3bdfc1556537	43	#define LEAVE_FF(fs, res) return res
AlexVC97	0:3bdfc1556537	44	#endif
AlexVC97	0:3bdfc1556537	45
AlexVC97	0:3bdfc1556537	46	#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }
AlexVC97	0:3bdfc1556537	47
AlexVC97	0:3bdfc1556537	48
AlexVC97	0:3bdfc1556537	49	/* Definitions of sector size */
AlexVC97	0:3bdfc1556537	50	#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)
AlexVC97	0:3bdfc1556537	51	#error Wrong sector size configuration
AlexVC97	0:3bdfc1556537	52	#endif
AlexVC97	0:3bdfc1556537	53	#if _MAX_SS == _MIN_SS
AlexVC97	0:3bdfc1556537	54	#define SS(fs) ((UINT)_MAX_SS) /* Fixed sector size */
AlexVC97	0:3bdfc1556537	55	#else
AlexVC97	0:3bdfc1556537	56	#define SS(fs) ((fs)->ssize) /* Variable sector size */
AlexVC97	0:3bdfc1556537	57	#endif
AlexVC97	0:3bdfc1556537	58
AlexVC97	0:3bdfc1556537	59
AlexVC97	0:3bdfc1556537	60	/* Timestamp feature */
AlexVC97	0:3bdfc1556537	61	#if _FS_NORTC == 1
AlexVC97	0:3bdfc1556537	62	#if _NORTC_YEAR < 1980 \|\| _NORTC_YEAR > 2107 \|\| _NORTC_MON < 1 \|\| _NORTC_MON > 12 \|\| _NORTC_MDAY < 1 \|\| _NORTC_MDAY > 31
AlexVC97	0:3bdfc1556537	63	#error Invalid _FS_NORTC settings
AlexVC97	0:3bdfc1556537	64	#endif
AlexVC97	0:3bdfc1556537	65	#define GET_FATTIME() ((DWORD)(_NORTC_YEAR - 1980) << 25 \| (DWORD)_NORTC_MON << 21 \| (DWORD)_NORTC_MDAY << 16)
AlexVC97	0:3bdfc1556537	66	#else
AlexVC97	0:3bdfc1556537	67	#define GET_FATTIME() get_fattime()
AlexVC97	0:3bdfc1556537	68	#endif
AlexVC97	0:3bdfc1556537	69
AlexVC97	0:3bdfc1556537	70
AlexVC97	0:3bdfc1556537	71	/* File access control feature */
AlexVC97	0:3bdfc1556537	72	#if _FS_LOCK
AlexVC97	0:3bdfc1556537	73	#if _FS_READONLY
AlexVC97	0:3bdfc1556537	74	#error _FS_LOCK must be 0 at read-only configuration
AlexVC97	0:3bdfc1556537	75	#endif
AlexVC97	0:3bdfc1556537	76	typedef struct {
AlexVC97	0:3bdfc1556537	77	FATFS fs; / Object ID 1, volume (NULL:blank entry) */
AlexVC97	0:3bdfc1556537	78	DWORD clu; /* Object ID 2, directory (0:root) */
AlexVC97	0:3bdfc1556537	79	WORD idx; /* Object ID 3, directory index */
AlexVC97	0:3bdfc1556537	80	WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */
AlexVC97	0:3bdfc1556537	81	} FILESEM;
AlexVC97	0:3bdfc1556537	82	#endif
AlexVC97	0:3bdfc1556537	83
AlexVC97	0:3bdfc1556537	84
AlexVC97	0:3bdfc1556537	85
AlexVC97	0:3bdfc1556537	86	/* DBCS code ranges and SBCS upper conversion tables */
AlexVC97	0:3bdfc1556537	87
AlexVC97	0:3bdfc1556537	88	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
AlexVC97	0:3bdfc1556537	89	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
AlexVC97	0:3bdfc1556537	90	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
AlexVC97	0:3bdfc1556537	91	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
AlexVC97	0:3bdfc1556537	92	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
AlexVC97	0:3bdfc1556537	93	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
AlexVC97	0:3bdfc1556537	94	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
AlexVC97	0:3bdfc1556537	95	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
AlexVC97	0:3bdfc1556537	96	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
AlexVC97	0:3bdfc1556537	97
AlexVC97	0:3bdfc1556537	98	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
AlexVC97	0:3bdfc1556537	99	#define _DF1S 0x81
AlexVC97	0:3bdfc1556537	100	#define _DF1E 0xFE
AlexVC97	0:3bdfc1556537	101	#define _DS1S 0x40
AlexVC97	0:3bdfc1556537	102	#define _DS1E 0x7E
AlexVC97	0:3bdfc1556537	103	#define _DS2S 0x80
AlexVC97	0:3bdfc1556537	104	#define _DS2E 0xFE
AlexVC97	0:3bdfc1556537	105
AlexVC97	0:3bdfc1556537	106	#elif _CODE_PAGE == 949 /* Korean */
AlexVC97	0:3bdfc1556537	107	#define _DF1S 0x81
AlexVC97	0:3bdfc1556537	108	#define _DF1E 0xFE
AlexVC97	0:3bdfc1556537	109	#define _DS1S 0x41
AlexVC97	0:3bdfc1556537	110	#define _DS1E 0x5A
AlexVC97	0:3bdfc1556537	111	#define _DS2S 0x61
AlexVC97	0:3bdfc1556537	112	#define _DS2E 0x7A
AlexVC97	0:3bdfc1556537	113	#define _DS3S 0x81
AlexVC97	0:3bdfc1556537	114	#define _DS3E 0xFE
AlexVC97	0:3bdfc1556537	115
AlexVC97	0:3bdfc1556537	116	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
AlexVC97	0:3bdfc1556537	117	#define _DF1S 0x81
AlexVC97	0:3bdfc1556537	118	#define _DF1E 0xFE
AlexVC97	0:3bdfc1556537	119	#define _DS1S 0x40
AlexVC97	0:3bdfc1556537	120	#define _DS1E 0x7E
AlexVC97	0:3bdfc1556537	121	#define _DS2S 0xA1
AlexVC97	0:3bdfc1556537	122	#define _DS2E 0xFE
AlexVC97	0:3bdfc1556537	123
AlexVC97	0:3bdfc1556537	124	#elif _CODE_PAGE == 437 /* U.S. */
AlexVC97	0:3bdfc1556537	125	#define _DF1S 0
AlexVC97	0:3bdfc1556537	126	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	127	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AlexVC97	0:3bdfc1556537	128	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	129	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	130	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	131	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AlexVC97	0:3bdfc1556537	132	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
AlexVC97	0:3bdfc1556537	133	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	134
AlexVC97	0:3bdfc1556537	135	#elif _CODE_PAGE == 720 /* Arabic */
AlexVC97	0:3bdfc1556537	136	#define _DF1S 0
AlexVC97	0:3bdfc1556537	137	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	138	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AlexVC97	0:3bdfc1556537	139	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	140	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	141	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	142	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AlexVC97	0:3bdfc1556537	143	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
AlexVC97	0:3bdfc1556537	144	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	145
AlexVC97	0:3bdfc1556537	146	#elif _CODE_PAGE == 737 /* Greek */
AlexVC97	0:3bdfc1556537	147	#define _DF1S 0
AlexVC97	0:3bdfc1556537	148	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	149	0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
AlexVC97	0:3bdfc1556537	150	0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96, \
AlexVC97	0:3bdfc1556537	151	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	152	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	153	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AlexVC97	0:3bdfc1556537	154	0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xEF,0xF5,0xF0,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
AlexVC97	0:3bdfc1556537	155	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	156
AlexVC97	0:3bdfc1556537	157	#elif _CODE_PAGE == 771 /* KBL */
AlexVC97	0:3bdfc1556537	158	#define _DF1S 0
AlexVC97	0:3bdfc1556537	159	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	160	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AlexVC97	0:3bdfc1556537	161	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	162	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	163	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	164	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDC,0xDE,0xDE, \
AlexVC97	0:3bdfc1556537	165	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AlexVC97	0:3bdfc1556537	166	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	167
AlexVC97	0:3bdfc1556537	168	#elif _CODE_PAGE == 775 /* Baltic */
AlexVC97	0:3bdfc1556537	169	#define _DF1S 0
AlexVC97	0:3bdfc1556537	170	#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	171	0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
AlexVC97	0:3bdfc1556537	172	0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	173	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	174	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	175	0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AlexVC97	0:3bdfc1556537	176	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF, \
AlexVC97	0:3bdfc1556537	177	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	178
AlexVC97	0:3bdfc1556537	179	#elif _CODE_PAGE == 850 /* Latin 1 */
AlexVC97	0:3bdfc1556537	180	#define _DF1S 0
AlexVC97	0:3bdfc1556537	181	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x41,0x43,0x45,0x45,0x45,0x49,0x49,0x49,0x41,0x41, \
AlexVC97	0:3bdfc1556537	182	0x45,0x92,0x92,0x4F,0x4F,0x4F,0x55,0x55,0x59,0x4F,0x55,0x4F,0x9C,0x4F,0x9E,0x9F, \
AlexVC97	0:3bdfc1556537	183	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	184	0xB0,0xB1,0xB2,0xB3,0xB4,0x41,0x41,0x41,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	185	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0x41,0x41,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	186	0xD1,0xD1,0x45,0x45,0x45,0x49,0x49,0x49,0x49,0xD9,0xDA,0xDB,0xDC,0xDD,0x49,0xDF, \
AlexVC97	0:3bdfc1556537	187	0x4F,0xE1,0x4F,0x4F,0x4F,0x4F,0xE6,0xE8,0xE8,0x55,0x55,0x55,0x59,0x59,0xEE,0xEF, \
AlexVC97	0:3bdfc1556537	188	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	189
AlexVC97	0:3bdfc1556537	190	#elif _CODE_PAGE == 852 /* Latin 2 */
AlexVC97	0:3bdfc1556537	191	#define _DF1S 0
AlexVC97	0:3bdfc1556537	192	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	193	0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0xAC, \
AlexVC97	0:3bdfc1556537	194	0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	195	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
AlexVC97	0:3bdfc1556537	196	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	197	0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AlexVC97	0:3bdfc1556537	198	0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF, \
AlexVC97	0:3bdfc1556537	199	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	200
AlexVC97	0:3bdfc1556537	201	#elif _CODE_PAGE == 855 /* Cyrillic */
AlexVC97	0:3bdfc1556537	202	#define _DF1S 0
AlexVC97	0:3bdfc1556537	203	#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F, \
AlexVC97	0:3bdfc1556537	204	0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
AlexVC97	0:3bdfc1556537	205	0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	206	0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	207	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	208	0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
AlexVC97	0:3bdfc1556537	209	0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF, \
AlexVC97	0:3bdfc1556537	210	0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	211
AlexVC97	0:3bdfc1556537	212	#elif _CODE_PAGE == 857 /* Turkish */
AlexVC97	0:3bdfc1556537	213	#define _DF1S 0
AlexVC97	0:3bdfc1556537	214	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x49,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	215	0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
AlexVC97	0:3bdfc1556537	216	0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	217	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	218	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	219	0xD0,0xD1,0xD2,0xD3,0xD4,0x49,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AlexVC97	0:3bdfc1556537	220	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0xED,0xEE,0xEF, \
AlexVC97	0:3bdfc1556537	221	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	222
AlexVC97	0:3bdfc1556537	223	#elif _CODE_PAGE == 860 /* Portuguese */
AlexVC97	0:3bdfc1556537	224	#define _DF1S 0
AlexVC97	0:3bdfc1556537	225	#define _EXCVT {0x80,0x9A,0x90,0x8F,0x8E,0x91,0x86,0x80,0x89,0x89,0x92,0x8B,0x8C,0x98,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	226	0x90,0x91,0x92,0x8C,0x99,0xA9,0x96,0x9D,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AlexVC97	0:3bdfc1556537	227	0x86,0x8B,0x9F,0x96,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	228	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	229	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	230	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AlexVC97	0:3bdfc1556537	231	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
AlexVC97	0:3bdfc1556537	232	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	233
AlexVC97	0:3bdfc1556537	234	#elif _CODE_PAGE == 861 /* Icelandic */
AlexVC97	0:3bdfc1556537	235	#define _DF1S 0
AlexVC97	0:3bdfc1556537	236	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x8B,0x8B,0x8D,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	237	0x90,0x92,0x92,0x4F,0x99,0x8D,0x55,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
AlexVC97	0:3bdfc1556537	238	0xA4,0xA5,0xA6,0xA7,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	239	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	240	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	241	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AlexVC97	0:3bdfc1556537	242	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
AlexVC97	0:3bdfc1556537	243	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	244
AlexVC97	0:3bdfc1556537	245	#elif _CODE_PAGE == 862 /* Hebrew */
AlexVC97	0:3bdfc1556537	246	#define _DF1S 0
AlexVC97	0:3bdfc1556537	247	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	248	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AlexVC97	0:3bdfc1556537	249	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	250	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	251	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	252	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AlexVC97	0:3bdfc1556537	253	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
AlexVC97	0:3bdfc1556537	254	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	255
AlexVC97	0:3bdfc1556537	256	#elif _CODE_PAGE == 863 /* Canadian-French */
AlexVC97	0:3bdfc1556537	257	#define _DF1S 0
AlexVC97	0:3bdfc1556537	258	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x41,0x8F, \
AlexVC97	0:3bdfc1556537	259	0x45,0x45,0x45,0x4F,0x45,0x49,0x55,0x55,0x98,0x4F,0x55,0x9B,0x9C,0x55,0x55,0x9F, \
AlexVC97	0:3bdfc1556537	260	0xA0,0xA1,0x4F,0x55,0xA4,0xA5,0xA6,0xA7,0x49,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	261	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	262	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	263	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AlexVC97	0:3bdfc1556537	264	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
AlexVC97	0:3bdfc1556537	265	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	266
AlexVC97	0:3bdfc1556537	267	#elif _CODE_PAGE == 864 /* Arabic */
AlexVC97	0:3bdfc1556537	268	#define _DF1S 0
AlexVC97	0:3bdfc1556537	269	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	270	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AlexVC97	0:3bdfc1556537	271	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	272	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	273	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	274	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AlexVC97	0:3bdfc1556537	275	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
AlexVC97	0:3bdfc1556537	276	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	277
AlexVC97	0:3bdfc1556537	278	#elif _CODE_PAGE == 865 /* Nordic */
AlexVC97	0:3bdfc1556537	279	#define _DF1S 0
AlexVC97	0:3bdfc1556537	280	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	281	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AlexVC97	0:3bdfc1556537	282	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	283	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	284	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	285	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AlexVC97	0:3bdfc1556537	286	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
AlexVC97	0:3bdfc1556537	287	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	288
AlexVC97	0:3bdfc1556537	289	#elif _CODE_PAGE == 866 /* Russian */
AlexVC97	0:3bdfc1556537	290	#define _DF1S 0
AlexVC97	0:3bdfc1556537	291	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	292	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AlexVC97	0:3bdfc1556537	293	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	294	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	295	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	296	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AlexVC97	0:3bdfc1556537	297	0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AlexVC97	0:3bdfc1556537	298	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	299
AlexVC97	0:3bdfc1556537	300	#elif _CODE_PAGE == 869 /* Greek 2 */
AlexVC97	0:3bdfc1556537	301	#define _DF1S 0
AlexVC97	0:3bdfc1556537	302	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
AlexVC97	0:3bdfc1556537	303	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x86,0x9C,0x8D,0x8F,0x90, \
AlexVC97	0:3bdfc1556537	304	0x91,0x90,0x92,0x95,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
AlexVC97	0:3bdfc1556537	305	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AlexVC97	0:3bdfc1556537	306	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
AlexVC97	0:3bdfc1556537	307	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xA4,0xA5,0xA6,0xD9,0xDA,0xDB,0xDC,0xA7,0xA8,0xDF, \
AlexVC97	0:3bdfc1556537	308	0xA9,0xAA,0xAC,0xAD,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xCF,0xCF,0xD0,0xEF, \
AlexVC97	0:3bdfc1556537	309	0xF0,0xF1,0xD1,0xD2,0xD3,0xF5,0xD4,0xF7,0xF8,0xF9,0xD5,0x96,0x95,0x98,0xFE,0xFF}
AlexVC97	0:3bdfc1556537	310
AlexVC97	0:3bdfc1556537	311	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
AlexVC97	0:3bdfc1556537	312	#if _USE_LFN
AlexVC97	0:3bdfc1556537	313	#error Cannot use LFN feature without valid code page.
AlexVC97	0:3bdfc1556537	314	#endif
AlexVC97	0:3bdfc1556537	315	#define _DF1S 0
AlexVC97	0:3bdfc1556537	316
AlexVC97	0:3bdfc1556537	317	#else
AlexVC97	0:3bdfc1556537	318	#error Unknown code page
AlexVC97	0:3bdfc1556537	319
AlexVC97	0:3bdfc1556537	320	#endif
AlexVC97	0:3bdfc1556537	321
AlexVC97	0:3bdfc1556537	322
AlexVC97	0:3bdfc1556537	323	/* Character code support macros */
AlexVC97	0:3bdfc1556537	324	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
AlexVC97	0:3bdfc1556537	325	#define IsLower(c) (((c)>='a')&&((c)<='z'))
AlexVC97	0:3bdfc1556537	326	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
AlexVC97	0:3bdfc1556537	327
AlexVC97	0:3bdfc1556537	328	#if _DF1S /* Code page is DBCS */
AlexVC97	0:3bdfc1556537	329
AlexVC97	0:3bdfc1556537	330	#ifdef _DF2S /* Two 1st byte areas */
AlexVC97	0:3bdfc1556537	331	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
AlexVC97	0:3bdfc1556537	332	#else /* One 1st byte area */
AlexVC97	0:3bdfc1556537	333	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
AlexVC97	0:3bdfc1556537	334	#endif
AlexVC97	0:3bdfc1556537	335
AlexVC97	0:3bdfc1556537	336	#ifdef _DS3S /* Three 2nd byte areas */
AlexVC97	0:3bdfc1556537	337	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
AlexVC97	0:3bdfc1556537	338	#else /* Two 2nd byte areas */
AlexVC97	0:3bdfc1556537	339	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
AlexVC97	0:3bdfc1556537	340	#endif
AlexVC97	0:3bdfc1556537	341
AlexVC97	0:3bdfc1556537	342	#else /* Code page is SBCS */
AlexVC97	0:3bdfc1556537	343
AlexVC97	0:3bdfc1556537	344	#define IsDBCS1(c) 0
AlexVC97	0:3bdfc1556537	345	#define IsDBCS2(c) 0
AlexVC97	0:3bdfc1556537	346
AlexVC97	0:3bdfc1556537	347	#endif /* _DF1S */
AlexVC97	0:3bdfc1556537	348
AlexVC97	0:3bdfc1556537	349
AlexVC97	0:3bdfc1556537	350	/* Name status flags */
AlexVC97	0:3bdfc1556537	351	#define NSFLAG 11 /* Index of name status byte in fn[] */
AlexVC97	0:3bdfc1556537	352	#define NS_LOSS 0x01 /* Out of 8.3 format */
AlexVC97	0:3bdfc1556537	353	#define NS_LFN 0x02 /* Force to create LFN entry */
AlexVC97	0:3bdfc1556537	354	#define NS_LAST 0x04 /* Last segment */
AlexVC97	0:3bdfc1556537	355	#define NS_BODY 0x08 /* Lower case flag (body) */
AlexVC97	0:3bdfc1556537	356	#define NS_EXT 0x10 /* Lower case flag (ext) */
AlexVC97	0:3bdfc1556537	357	#define NS_DOT 0x20 /* Dot entry */
AlexVC97	0:3bdfc1556537	358
AlexVC97	0:3bdfc1556537	359
AlexVC97	0:3bdfc1556537	360	/* FAT sub-type boundaries (Differ from specs but correct for real DOS/Windows) */
AlexVC97	0:3bdfc1556537	361	#define MIN_FAT16 4086U /* Minimum number of clusters of FAT16 */
AlexVC97	0:3bdfc1556537	362	#define MIN_FAT32 65526U /* Minimum number of clusters of FAT32 */
AlexVC97	0:3bdfc1556537	363
AlexVC97	0:3bdfc1556537	364
AlexVC97	0:3bdfc1556537	365	/* FatFs refers the members in the FAT structures as byte array instead of
AlexVC97	0:3bdfc1556537	366	/ structure members because the structure is not binary compatible between
AlexVC97	0:3bdfc1556537	367	/ different platforms */
AlexVC97	0:3bdfc1556537	368
AlexVC97	0:3bdfc1556537	369	#define BS_jmpBoot 0 /* x86 jump instruction (3) */
AlexVC97	0:3bdfc1556537	370	#define BS_OEMName 3 /* OEM name (8) */
AlexVC97	0:3bdfc1556537	371	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
AlexVC97	0:3bdfc1556537	372	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
AlexVC97	0:3bdfc1556537	373	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
AlexVC97	0:3bdfc1556537	374	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
AlexVC97	0:3bdfc1556537	375	#define BPB_RootEntCnt 17 /* Number of root directory entries for FAT12/16 (2) */
AlexVC97	0:3bdfc1556537	376	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
AlexVC97	0:3bdfc1556537	377	#define BPB_Media 21 /* Media descriptor (1) */
AlexVC97	0:3bdfc1556537	378	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
AlexVC97	0:3bdfc1556537	379	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
AlexVC97	0:3bdfc1556537	380	#define BPB_NumHeads 26 /* Number of heads (2) */
AlexVC97	0:3bdfc1556537	381	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
AlexVC97	0:3bdfc1556537	382	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
AlexVC97	0:3bdfc1556537	383	#define BS_DrvNum 36 /* Physical drive number (1) */
AlexVC97	0:3bdfc1556537	384	#define BS_NTres 37 /* Error flag (1) */
AlexVC97	0:3bdfc1556537	385	#define BS_BootSig 38 /* Extended boot signature (1) */
AlexVC97	0:3bdfc1556537	386	#define BS_VolID 39 /* Volume serial number (4) */
AlexVC97	0:3bdfc1556537	387	#define BS_VolLab 43 /* Volume label (8) */
AlexVC97	0:3bdfc1556537	388	#define BS_FilSysType 54 /* File system type (1) */
AlexVC97	0:3bdfc1556537	389	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
AlexVC97	0:3bdfc1556537	390	#define BPB_ExtFlags 40 /* Extended flags (2) */
AlexVC97	0:3bdfc1556537	391	#define BPB_FSVer 42 /* File system version (2) */
AlexVC97	0:3bdfc1556537	392	#define BPB_RootClus 44 /* Root directory first cluster (4) */
AlexVC97	0:3bdfc1556537	393	#define BPB_FSInfo 48 /* Offset of FSINFO sector (2) */
AlexVC97	0:3bdfc1556537	394	#define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
AlexVC97	0:3bdfc1556537	395	#define BS_DrvNum32 64 /* Physical drive number (1) */
AlexVC97	0:3bdfc1556537	396	#define BS_NTres32 65 /* Error flag (1) */
AlexVC97	0:3bdfc1556537	397	#define BS_BootSig32 66 /* Extended boot signature (1) */
AlexVC97	0:3bdfc1556537	398	#define BS_VolID32 67 /* Volume serial number (4) */
AlexVC97	0:3bdfc1556537	399	#define BS_VolLab32 71 /* Volume label (8) */
AlexVC97	0:3bdfc1556537	400	#define BS_FilSysType32 82 /* File system type (1) */
AlexVC97	0:3bdfc1556537	401	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
AlexVC97	0:3bdfc1556537	402	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
AlexVC97	0:3bdfc1556537	403	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
AlexVC97	0:3bdfc1556537	404	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
AlexVC97	0:3bdfc1556537	405	#define MBR_Table 446 /* MBR: Partition table offset (2) */
AlexVC97	0:3bdfc1556537	406	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
AlexVC97	0:3bdfc1556537	407	#define BS_55AA 510 /* Signature word (2) */
AlexVC97	0:3bdfc1556537	408
AlexVC97	0:3bdfc1556537	409	#define DIR_Name 0 /* Short file name (11) */
AlexVC97	0:3bdfc1556537	410	#define DIR_Attr 11 /* Attribute (1) */
AlexVC97	0:3bdfc1556537	411	#define DIR_NTres 12 /* Lower case flag (1) */
AlexVC97	0:3bdfc1556537	412	#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
AlexVC97	0:3bdfc1556537	413	#define DIR_CrtTime 14 /* Created time (2) */
AlexVC97	0:3bdfc1556537	414	#define DIR_CrtDate 16 /* Created date (2) */
AlexVC97	0:3bdfc1556537	415	#define DIR_LstAccDate 18 /* Last accessed date (2) */
AlexVC97	0:3bdfc1556537	416	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
AlexVC97	0:3bdfc1556537	417	#define DIR_WrtTime 22 /* Modified time (2) */
AlexVC97	0:3bdfc1556537	418	#define DIR_WrtDate 24 /* Modified date (2) */
AlexVC97	0:3bdfc1556537	419	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
AlexVC97	0:3bdfc1556537	420	#define DIR_FileSize 28 /* File size (4) */
AlexVC97	0:3bdfc1556537	421	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
AlexVC97	0:3bdfc1556537	422	#define LDIR_Attr 11 /* LFN attribute (1) */
AlexVC97	0:3bdfc1556537	423	#define LDIR_Type 12 /* LFN type (1) */
AlexVC97	0:3bdfc1556537	424	#define LDIR_Chksum 13 /* Checksum of corresponding SFN entry */
AlexVC97	0:3bdfc1556537	425	#define LDIR_FstClusLO 26 /* Must be zero (0) */
AlexVC97	0:3bdfc1556537	426	#define SZ_DIRE 32 /* Size of a directory entry */
AlexVC97	0:3bdfc1556537	427	#define LLEF 0x40 /* Last long entry flag in LDIR_Ord */
AlexVC97	0:3bdfc1556537	428	#define DDEM 0xE5 /* Deleted directory entry mark at DIR_Name[0] */
AlexVC97	0:3bdfc1556537	429	#define RDDEM 0x05 /* Replacement of the character collides with DDEM */
AlexVC97	0:3bdfc1556537	430
AlexVC97	0:3bdfc1556537	431
AlexVC97	0:3bdfc1556537	432
AlexVC97	0:3bdfc1556537	433
AlexVC97	0:3bdfc1556537	434	/*--------------------------------------------------------------------------
AlexVC97	0:3bdfc1556537	435
AlexVC97	0:3bdfc1556537	436	Module Private Work Area
AlexVC97	0:3bdfc1556537	437
AlexVC97	0:3bdfc1556537	438	---------------------------------------------------------------------------*/
AlexVC97	0:3bdfc1556537	439
AlexVC97	0:3bdfc1556537	440	/* Remark: Uninitialized variables with static duration are guaranteed
AlexVC97	0:3bdfc1556537	441	/ zero/null at start-up. If not, either the linker or start-up routine
AlexVC97	0:3bdfc1556537	442	/ being used is not compliance with ANSI-C standard.
AlexVC97	0:3bdfc1556537	443	*/
AlexVC97	0:3bdfc1556537	444
AlexVC97	0:3bdfc1556537	445	#if _VOLUMES < 1 \|\| _VOLUMES > 9
AlexVC97	0:3bdfc1556537	446	#error Wrong _VOLUMES setting
AlexVC97	0:3bdfc1556537	447	#endif
AlexVC97	0:3bdfc1556537	448	static FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
AlexVC97	0:3bdfc1556537	449	static WORD Fsid; /* File system mount ID */
AlexVC97	0:3bdfc1556537	450
AlexVC97	0:3bdfc1556537	451	#if _FS_RPATH && _VOLUMES >= 2
AlexVC97	0:3bdfc1556537	452	static BYTE CurrVol; /* Current drive */
AlexVC97	0:3bdfc1556537	453	#endif
AlexVC97	0:3bdfc1556537	454
AlexVC97	0:3bdfc1556537	455	#if _FS_LOCK
AlexVC97	0:3bdfc1556537	456	static FILESEM Files[_FS_LOCK]; /* Open object lock semaphores */
AlexVC97	0:3bdfc1556537	457	#endif
AlexVC97	0:3bdfc1556537	458
AlexVC97	0:3bdfc1556537	459	#if _USE_LFN == 0 /* Non LFN feature */
AlexVC97	0:3bdfc1556537	460	#define DEFINE_NAMEBUF BYTE sfn[12]
AlexVC97	0:3bdfc1556537	461	#define INIT_BUF(dobj) (dobj).fn = sfn
AlexVC97	0:3bdfc1556537	462	#define FREE_BUF()
AlexVC97	0:3bdfc1556537	463	#else
AlexVC97	0:3bdfc1556537	464	#if _MAX_LFN < 12 \|\| _MAX_LFN > 255
AlexVC97	0:3bdfc1556537	465	#error Wrong _MAX_LFN setting
AlexVC97	0:3bdfc1556537	466	#endif
AlexVC97	0:3bdfc1556537	467	#if _USE_LFN == 1 /* LFN feature with static working buffer */
AlexVC97	0:3bdfc1556537	468	static WCHAR LfnBuf[_MAX_LFN + 1];
AlexVC97	0:3bdfc1556537	469	#define DEFINE_NAMEBUF BYTE sfn[12]
AlexVC97	0:3bdfc1556537	470	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
AlexVC97	0:3bdfc1556537	471	#define FREE_BUF()
AlexVC97	0:3bdfc1556537	472	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
AlexVC97	0:3bdfc1556537	473	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN + 1]
AlexVC97	0:3bdfc1556537	474	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
AlexVC97	0:3bdfc1556537	475	#define FREE_BUF()
AlexVC97	0:3bdfc1556537	476	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
AlexVC97	0:3bdfc1556537	477	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR *lfn
AlexVC97	0:3bdfc1556537	478	#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); (dobj).lfn = lfn; (dobj).fn = sfn; }
AlexVC97	0:3bdfc1556537	479	#define FREE_BUF() ff_memfree(lfn)
AlexVC97	0:3bdfc1556537	480	#else
AlexVC97	0:3bdfc1556537	481	#error Wrong _USE_LFN setting
AlexVC97	0:3bdfc1556537	482	#endif
AlexVC97	0:3bdfc1556537	483	#endif
AlexVC97	0:3bdfc1556537	484
AlexVC97	0:3bdfc1556537	485	#ifdef _EXCVT
AlexVC97	0:3bdfc1556537	486	static const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for SBCS extended characters */
AlexVC97	0:3bdfc1556537	487	#endif
AlexVC97	0:3bdfc1556537	488
AlexVC97	0:3bdfc1556537	489
AlexVC97	0:3bdfc1556537	490
AlexVC97	0:3bdfc1556537	491
AlexVC97	0:3bdfc1556537	492
AlexVC97	0:3bdfc1556537	493
AlexVC97	0:3bdfc1556537	494	/*--------------------------------------------------------------------------
AlexVC97	0:3bdfc1556537	495
AlexVC97	0:3bdfc1556537	496	Module Private Functions
AlexVC97	0:3bdfc1556537	497
AlexVC97	0:3bdfc1556537	498	---------------------------------------------------------------------------*/
AlexVC97	0:3bdfc1556537	499
AlexVC97	0:3bdfc1556537	500
AlexVC97	0:3bdfc1556537	501	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	502	/* String functions */
AlexVC97	0:3bdfc1556537	503	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	504
AlexVC97	0:3bdfc1556537	505	/* Copy memory to memory */
AlexVC97	0:3bdfc1556537	506	static
AlexVC97	0:3bdfc1556537	507	void mem_cpy (void* dst, const void* src, UINT cnt) {
AlexVC97	0:3bdfc1556537	508	BYTE d = (BYTE)dst;
AlexVC97	0:3bdfc1556537	509	const BYTE s = (const BYTE)src;
AlexVC97	0:3bdfc1556537	510
AlexVC97	0:3bdfc1556537	511	#if _WORD_ACCESS == 1
AlexVC97	0:3bdfc1556537	512	while (cnt >= sizeof (int)) {
AlexVC97	0:3bdfc1556537	513	(int)d = (int)s;
AlexVC97	0:3bdfc1556537	514	d += sizeof (int); s += sizeof (int);
AlexVC97	0:3bdfc1556537	515	cnt -= sizeof (int);
AlexVC97	0:3bdfc1556537	516	}
AlexVC97	0:3bdfc1556537	517	#endif
AlexVC97	0:3bdfc1556537	518	while (cnt--)
AlexVC97	0:3bdfc1556537	519	d++ = s++;
AlexVC97	0:3bdfc1556537	520	}
AlexVC97	0:3bdfc1556537	521
AlexVC97	0:3bdfc1556537	522	/* Fill memory */
AlexVC97	0:3bdfc1556537	523	static
AlexVC97	0:3bdfc1556537	524	void mem_set (void* dst, int val, UINT cnt) {
AlexVC97	0:3bdfc1556537	525	BYTE d = (BYTE)dst;
AlexVC97	0:3bdfc1556537	526
AlexVC97	0:3bdfc1556537	527	while (cnt--)
AlexVC97	0:3bdfc1556537	528	*d++ = (BYTE)val;
AlexVC97	0:3bdfc1556537	529	}
AlexVC97	0:3bdfc1556537	530
AlexVC97	0:3bdfc1556537	531	/* Compare memory to memory */
AlexVC97	0:3bdfc1556537	532	static
AlexVC97	0:3bdfc1556537	533	int mem_cmp (const void* dst, const void* src, UINT cnt) {
AlexVC97	0:3bdfc1556537	534	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
AlexVC97	0:3bdfc1556537	535	int r = 0;
AlexVC97	0:3bdfc1556537	536
AlexVC97	0:3bdfc1556537	537	while (cnt-- && (r = d++ - s++) == 0) ;
AlexVC97	0:3bdfc1556537	538	return r;
AlexVC97	0:3bdfc1556537	539	}
AlexVC97	0:3bdfc1556537	540
AlexVC97	0:3bdfc1556537	541	/* Check if chr is contained in the string */
AlexVC97	0:3bdfc1556537	542	static
AlexVC97	0:3bdfc1556537	543	int chk_chr (const char* str, int chr) {
AlexVC97	0:3bdfc1556537	544	while (str && str != chr) str++;
AlexVC97	0:3bdfc1556537	545	return *str;
AlexVC97	0:3bdfc1556537	546	}
AlexVC97	0:3bdfc1556537	547
AlexVC97	0:3bdfc1556537	548
AlexVC97	0:3bdfc1556537	549
AlexVC97	0:3bdfc1556537	550
AlexVC97	0:3bdfc1556537	551	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	552	/* Request/Release grant to access the volume */
AlexVC97	0:3bdfc1556537	553	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	554	#if _FS_REENTRANT
AlexVC97	0:3bdfc1556537	555	static
AlexVC97	0:3bdfc1556537	556	int lock_fs (
AlexVC97	0:3bdfc1556537	557	FATFS* fs /* File system object */
AlexVC97	0:3bdfc1556537	558	)
AlexVC97	0:3bdfc1556537	559	{
AlexVC97	0:3bdfc1556537	560	return ff_req_grant(fs->sobj);
AlexVC97	0:3bdfc1556537	561	}
AlexVC97	0:3bdfc1556537	562
AlexVC97	0:3bdfc1556537	563
AlexVC97	0:3bdfc1556537	564	static
AlexVC97	0:3bdfc1556537	565	void unlock_fs (
AlexVC97	0:3bdfc1556537	566	FATFS* fs, /* File system object */
AlexVC97	0:3bdfc1556537	567	FRESULT res /* Result code to be returned */
AlexVC97	0:3bdfc1556537	568	)
AlexVC97	0:3bdfc1556537	569	{
AlexVC97	0:3bdfc1556537	570	if (fs &&
AlexVC97	0:3bdfc1556537	571	res != FR_NOT_ENABLED &&
AlexVC97	0:3bdfc1556537	572	res != FR_INVALID_DRIVE &&
AlexVC97	0:3bdfc1556537	573	res != FR_INVALID_OBJECT &&
AlexVC97	0:3bdfc1556537	574	res != FR_TIMEOUT) {
AlexVC97	0:3bdfc1556537	575	ff_rel_grant(fs->sobj);
AlexVC97	0:3bdfc1556537	576	}
AlexVC97	0:3bdfc1556537	577	}
AlexVC97	0:3bdfc1556537	578	#endif
AlexVC97	0:3bdfc1556537	579
AlexVC97	0:3bdfc1556537	580
AlexVC97	0:3bdfc1556537	581
AlexVC97	0:3bdfc1556537	582
AlexVC97	0:3bdfc1556537	583	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	584	/* File lock control functions */
AlexVC97	0:3bdfc1556537	585	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	586	#if _FS_LOCK
AlexVC97	0:3bdfc1556537	587
AlexVC97	0:3bdfc1556537	588	static
AlexVC97	0:3bdfc1556537	589	FRESULT chk_lock ( /* Check if the file can be accessed */
AlexVC97	0:3bdfc1556537	590	FATFS_DIR* dp, /* Directory object pointing the file to be checked */
AlexVC97	0:3bdfc1556537	591	int acc /* Desired access type (0:Read, 1:Write, 2:Delete/Rename) */
AlexVC97	0:3bdfc1556537	592	)
AlexVC97	0:3bdfc1556537	593	{
AlexVC97	0:3bdfc1556537	594	UINT i, be;
AlexVC97	0:3bdfc1556537	595
AlexVC97	0:3bdfc1556537	596	/* Search file semaphore table */
AlexVC97	0:3bdfc1556537	597	for (i = be = 0; i < _FS_LOCK; i++) {
AlexVC97	0:3bdfc1556537	598	if (Files[i].fs) { /* Existing entry */
AlexVC97	0:3bdfc1556537	599	if (Files[i].fs == dp->fs && /* Check if the object matched with an open object */
AlexVC97	0:3bdfc1556537	600	Files[i].clu == dp->sclust &&
AlexVC97	0:3bdfc1556537	601	Files[i].idx == dp->index) break;
AlexVC97	0:3bdfc1556537	602	} else { /* Blank entry */
AlexVC97	0:3bdfc1556537	603	be = 1;
AlexVC97	0:3bdfc1556537	604	}
AlexVC97	0:3bdfc1556537	605	}
AlexVC97	0:3bdfc1556537	606	if (i == _FS_LOCK) /* The object is not opened */
AlexVC97	0:3bdfc1556537	607	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new object? */
AlexVC97	0:3bdfc1556537	608
AlexVC97	0:3bdfc1556537	609	/* The object has been opened. Reject any open against writing file and all write mode open */
AlexVC97	0:3bdfc1556537	610	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
AlexVC97	0:3bdfc1556537	611	}
AlexVC97	0:3bdfc1556537	612
AlexVC97	0:3bdfc1556537	613
AlexVC97	0:3bdfc1556537	614	static
AlexVC97	0:3bdfc1556537	615	int enq_lock (void) /* Check if an entry is available for a new object */
AlexVC97	0:3bdfc1556537	616	{
AlexVC97	0:3bdfc1556537	617	UINT i;
AlexVC97	0:3bdfc1556537	618
AlexVC97	0:3bdfc1556537	619	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
AlexVC97	0:3bdfc1556537	620	return (i == _FS_LOCK) ? 0 : 1;
AlexVC97	0:3bdfc1556537	621	}
AlexVC97	0:3bdfc1556537	622
AlexVC97	0:3bdfc1556537	623
AlexVC97	0:3bdfc1556537	624	static
AlexVC97	0:3bdfc1556537	625	UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */
AlexVC97	0:3bdfc1556537	626	FATFS_DIR* dp, /* Directory object pointing the file to register or increment */
AlexVC97	0:3bdfc1556537	627	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
AlexVC97	0:3bdfc1556537	628	)
AlexVC97	0:3bdfc1556537	629	{
AlexVC97	0:3bdfc1556537	630	UINT i;
AlexVC97	0:3bdfc1556537	631
AlexVC97	0:3bdfc1556537	632
AlexVC97	0:3bdfc1556537	633	for (i = 0; i < _FS_LOCK; i++) { /* Find the object */
AlexVC97	0:3bdfc1556537	634	if (Files[i].fs == dp->fs &&
AlexVC97	0:3bdfc1556537	635	Files[i].clu == dp->sclust &&
AlexVC97	0:3bdfc1556537	636	Files[i].idx == dp->index) break;
AlexVC97	0:3bdfc1556537	637	}
AlexVC97	0:3bdfc1556537	638
AlexVC97	0:3bdfc1556537	639	if (i == _FS_LOCK) { /* Not opened. Register it as new. */
AlexVC97	0:3bdfc1556537	640	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
AlexVC97	0:3bdfc1556537	641	if (i == _FS_LOCK) return 0; /* No free entry to register (int err) */
AlexVC97	0:3bdfc1556537	642	Files[i].fs = dp->fs;
AlexVC97	0:3bdfc1556537	643	Files[i].clu = dp->sclust;
AlexVC97	0:3bdfc1556537	644	Files[i].idx = dp->index;
AlexVC97	0:3bdfc1556537	645	Files[i].ctr = 0;
AlexVC97	0:3bdfc1556537	646	}
AlexVC97	0:3bdfc1556537	647
AlexVC97	0:3bdfc1556537	648	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
AlexVC97	0:3bdfc1556537	649
AlexVC97	0:3bdfc1556537	650	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
AlexVC97	0:3bdfc1556537	651
AlexVC97	0:3bdfc1556537	652	return i + 1;
AlexVC97	0:3bdfc1556537	653	}
AlexVC97	0:3bdfc1556537	654
AlexVC97	0:3bdfc1556537	655
AlexVC97	0:3bdfc1556537	656	static
AlexVC97	0:3bdfc1556537	657	FRESULT dec_lock ( /* Decrement object open counter */
AlexVC97	0:3bdfc1556537	658	UINT i /* Semaphore index (1..) */
AlexVC97	0:3bdfc1556537	659	)
AlexVC97	0:3bdfc1556537	660	{
AlexVC97	0:3bdfc1556537	661	WORD n;
AlexVC97	0:3bdfc1556537	662	FRESULT res;
AlexVC97	0:3bdfc1556537	663
AlexVC97	0:3bdfc1556537	664
AlexVC97	0:3bdfc1556537	665	if (--i < _FS_LOCK) { /* Shift index number origin from 0 */
AlexVC97	0:3bdfc1556537	666	n = Files[i].ctr;
AlexVC97	0:3bdfc1556537	667	if (n == 0x100) n = 0; /* If write mode open, delete the entry */
AlexVC97	0:3bdfc1556537	668	if (n) n--; /* Decrement read mode open count */
AlexVC97	0:3bdfc1556537	669	Files[i].ctr = n;
AlexVC97	0:3bdfc1556537	670	if (!n) Files[i].fs = 0; /* Delete the entry if open count gets zero */
AlexVC97	0:3bdfc1556537	671	res = FR_OK;
AlexVC97	0:3bdfc1556537	672	} else {
AlexVC97	0:3bdfc1556537	673	res = FR_INT_ERR; /* Invalid index nunber */
AlexVC97	0:3bdfc1556537	674	}
AlexVC97	0:3bdfc1556537	675	return res;
AlexVC97	0:3bdfc1556537	676	}
AlexVC97	0:3bdfc1556537	677
AlexVC97	0:3bdfc1556537	678
AlexVC97	0:3bdfc1556537	679	static
AlexVC97	0:3bdfc1556537	680	void clear_lock ( /* Clear lock entries of the volume */
AlexVC97	0:3bdfc1556537	681	FATFS *fs
AlexVC97	0:3bdfc1556537	682	)
AlexVC97	0:3bdfc1556537	683	{
AlexVC97	0:3bdfc1556537	684	UINT i;
AlexVC97	0:3bdfc1556537	685
AlexVC97	0:3bdfc1556537	686	for (i = 0; i < _FS_LOCK; i++) {
AlexVC97	0:3bdfc1556537	687	if (Files[i].fs == fs) Files[i].fs = 0;
AlexVC97	0:3bdfc1556537	688	}
AlexVC97	0:3bdfc1556537	689	}
AlexVC97	0:3bdfc1556537	690	#endif
AlexVC97	0:3bdfc1556537	691
AlexVC97	0:3bdfc1556537	692
AlexVC97	0:3bdfc1556537	693
AlexVC97	0:3bdfc1556537	694
AlexVC97	0:3bdfc1556537	695	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	696	/* Move/Flush disk access window in the file system object */
AlexVC97	0:3bdfc1556537	697	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	698	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	699	static
AlexVC97	0:3bdfc1556537	700	FRESULT sync_window ( /* FR_OK:succeeded, !=0:error */
AlexVC97	0:3bdfc1556537	701	FATFS* fs /* File system object */
AlexVC97	0:3bdfc1556537	702	)
AlexVC97	0:3bdfc1556537	703	{
AlexVC97	0:3bdfc1556537	704	DWORD wsect;
AlexVC97	0:3bdfc1556537	705	UINT nf;
AlexVC97	0:3bdfc1556537	706	FRESULT res = FR_OK;
AlexVC97	0:3bdfc1556537	707
AlexVC97	0:3bdfc1556537	708
AlexVC97	0:3bdfc1556537	709	if (fs->wflag) { /* Write back the sector if it is dirty */
AlexVC97	0:3bdfc1556537	710	wsect = fs->winsect; /* Current sector number */
AlexVC97	0:3bdfc1556537	711	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK) {
AlexVC97	0:3bdfc1556537	712	res = FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	713	} else {
AlexVC97	0:3bdfc1556537	714	fs->wflag = 0;
AlexVC97	0:3bdfc1556537	715	if (wsect - fs->fatbase < fs->fsize) { /* Is it in the FAT area? */
AlexVC97	0:3bdfc1556537	716	for (nf = fs->n_fats; nf >= 2; nf--) { /* Reflect the change to all FAT copies */
AlexVC97	0:3bdfc1556537	717	wsect += fs->fsize;
AlexVC97	0:3bdfc1556537	718	disk_write(fs->drv, fs->win, wsect, 1);
AlexVC97	0:3bdfc1556537	719	}
AlexVC97	0:3bdfc1556537	720	}
AlexVC97	0:3bdfc1556537	721	}
AlexVC97	0:3bdfc1556537	722	}
AlexVC97	0:3bdfc1556537	723	return res;
AlexVC97	0:3bdfc1556537	724	}
AlexVC97	0:3bdfc1556537	725	#endif
AlexVC97	0:3bdfc1556537	726
AlexVC97	0:3bdfc1556537	727
AlexVC97	0:3bdfc1556537	728	static
AlexVC97	0:3bdfc1556537	729	FRESULT move_window ( /* FR_OK(0):succeeded, !=0:error */
AlexVC97	0:3bdfc1556537	730	FATFS* fs, /* File system object */
AlexVC97	0:3bdfc1556537	731	DWORD sector /* Sector number to make appearance in the fs->win[] */
AlexVC97	0:3bdfc1556537	732	)
AlexVC97	0:3bdfc1556537	733	{
AlexVC97	0:3bdfc1556537	734	FRESULT res = FR_OK;
AlexVC97	0:3bdfc1556537	735
AlexVC97	0:3bdfc1556537	736
AlexVC97	0:3bdfc1556537	737	if (sector != fs->winsect) { /* Window offset changed? */
AlexVC97	0:3bdfc1556537	738	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	739	res = sync_window(fs); /* Write-back changes */
AlexVC97	0:3bdfc1556537	740	#endif
AlexVC97	0:3bdfc1556537	741	if (res == FR_OK) { /* Fill sector window with new data */
AlexVC97	0:3bdfc1556537	742	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK) {
AlexVC97	0:3bdfc1556537	743	sector = 0xFFFFFFFF; /* Invalidate window if data is not reliable */
AlexVC97	0:3bdfc1556537	744	res = FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	745	}
AlexVC97	0:3bdfc1556537	746	fs->winsect = sector;
AlexVC97	0:3bdfc1556537	747	}
AlexVC97	0:3bdfc1556537	748	}
AlexVC97	0:3bdfc1556537	749	return res;
AlexVC97	0:3bdfc1556537	750	}
AlexVC97	0:3bdfc1556537	751
AlexVC97	0:3bdfc1556537	752
AlexVC97	0:3bdfc1556537	753
AlexVC97	0:3bdfc1556537	754
AlexVC97	0:3bdfc1556537	755	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	756	/* Synchronize file system and strage device */
AlexVC97	0:3bdfc1556537	757	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	758	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	759	static
AlexVC97	0:3bdfc1556537	760	FRESULT sync_fs ( /* FR_OK:succeeded, !=0:error */
AlexVC97	0:3bdfc1556537	761	FATFS* fs /* File system object */
AlexVC97	0:3bdfc1556537	762	)
AlexVC97	0:3bdfc1556537	763	{
AlexVC97	0:3bdfc1556537	764	FRESULT res;
AlexVC97	0:3bdfc1556537	765
AlexVC97	0:3bdfc1556537	766
AlexVC97	0:3bdfc1556537	767	res = sync_window(fs);
AlexVC97	0:3bdfc1556537	768	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	769	/* Update FSInfo sector if needed */
AlexVC97	0:3bdfc1556537	770	if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) {
AlexVC97	0:3bdfc1556537	771	/* Create FSInfo structure */
AlexVC97	0:3bdfc1556537	772	mem_set(fs->win, 0, SS(fs));
AlexVC97	0:3bdfc1556537	773	ST_WORD(fs->win + BS_55AA, 0xAA55);
AlexVC97	0:3bdfc1556537	774	ST_DWORD(fs->win + FSI_LeadSig, 0x41615252);
AlexVC97	0:3bdfc1556537	775	ST_DWORD(fs->win + FSI_StrucSig, 0x61417272);
AlexVC97	0:3bdfc1556537	776	ST_DWORD(fs->win + FSI_Free_Count, fs->free_clust);
AlexVC97	0:3bdfc1556537	777	ST_DWORD(fs->win + FSI_Nxt_Free, fs->last_clust);
AlexVC97	0:3bdfc1556537	778	/* Write it into the FSInfo sector */
AlexVC97	0:3bdfc1556537	779	fs->winsect = fs->volbase + 1;
AlexVC97	0:3bdfc1556537	780	disk_write(fs->drv, fs->win, fs->winsect, 1);
AlexVC97	0:3bdfc1556537	781	fs->fsi_flag = 0;
AlexVC97	0:3bdfc1556537	782	}
AlexVC97	0:3bdfc1556537	783	/* Make sure that no pending write process in the physical drive */
AlexVC97	0:3bdfc1556537	784	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
AlexVC97	0:3bdfc1556537	785	res = FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	786	}
AlexVC97	0:3bdfc1556537	787
AlexVC97	0:3bdfc1556537	788	return res;
AlexVC97	0:3bdfc1556537	789	}
AlexVC97	0:3bdfc1556537	790	#endif
AlexVC97	0:3bdfc1556537	791
AlexVC97	0:3bdfc1556537	792
AlexVC97	0:3bdfc1556537	793
AlexVC97	0:3bdfc1556537	794
AlexVC97	0:3bdfc1556537	795	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	796	/* Get sector# from cluster# */
AlexVC97	0:3bdfc1556537	797	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	798	/* Hidden API for hacks and disk tools */
AlexVC97	0:3bdfc1556537	799
AlexVC97	0:3bdfc1556537	800	DWORD clust2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */
AlexVC97	0:3bdfc1556537	801	FATFS* fs, /* File system object */
AlexVC97	0:3bdfc1556537	802	DWORD clst /* Cluster# to be converted */
AlexVC97	0:3bdfc1556537	803	)
AlexVC97	0:3bdfc1556537	804	{
AlexVC97	0:3bdfc1556537	805	clst -= 2;
AlexVC97	0:3bdfc1556537	806	if (clst >= fs->n_fatent - 2) return 0; /* Invalid cluster# */
AlexVC97	0:3bdfc1556537	807	return clst * fs->csize + fs->database;
AlexVC97	0:3bdfc1556537	808	}
AlexVC97	0:3bdfc1556537	809
AlexVC97	0:3bdfc1556537	810
AlexVC97	0:3bdfc1556537	811
AlexVC97	0:3bdfc1556537	812
AlexVC97	0:3bdfc1556537	813	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	814	/* FAT access - Read value of a FAT entry */
AlexVC97	0:3bdfc1556537	815	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	816	/* Hidden API for hacks and disk tools */
AlexVC97	0:3bdfc1556537	817
AlexVC97	0:3bdfc1556537	818	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluster status */
AlexVC97	0:3bdfc1556537	819	FATFS* fs, /* File system object */
AlexVC97	0:3bdfc1556537	820	DWORD clst /* FAT index number (cluster number) to get the value */
AlexVC97	0:3bdfc1556537	821	)
AlexVC97	0:3bdfc1556537	822	{
AlexVC97	0:3bdfc1556537	823	UINT wc, bc;
AlexVC97	0:3bdfc1556537	824	BYTE *p;
AlexVC97	0:3bdfc1556537	825	DWORD val;
AlexVC97	0:3bdfc1556537	826
AlexVC97	0:3bdfc1556537	827
AlexVC97	0:3bdfc1556537	828	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
AlexVC97	0:3bdfc1556537	829	val = 1; /* Internal error */
AlexVC97	0:3bdfc1556537	830
AlexVC97	0:3bdfc1556537	831	} else {
AlexVC97	0:3bdfc1556537	832	val = 0xFFFFFFFF; /* Default value falls on disk error */
AlexVC97	0:3bdfc1556537	833
AlexVC97	0:3bdfc1556537	834	switch (fs->fs_type) {
AlexVC97	0:3bdfc1556537	835	case FS_FAT12 :
AlexVC97	0:3bdfc1556537	836	bc = (UINT)clst; bc += bc / 2;
AlexVC97	0:3bdfc1556537	837	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
AlexVC97	0:3bdfc1556537	838	wc = fs->win[bc++ % SS(fs)];
AlexVC97	0:3bdfc1556537	839	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
AlexVC97	0:3bdfc1556537	840	wc \|= fs->win[bc % SS(fs)] << 8;
AlexVC97	0:3bdfc1556537	841	val = clst & 1 ? wc >> 4 : (wc & 0xFFF);
AlexVC97	0:3bdfc1556537	842	break;
AlexVC97	0:3bdfc1556537	843
AlexVC97	0:3bdfc1556537	844	case FS_FAT16 :
AlexVC97	0:3bdfc1556537	845	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break;
AlexVC97	0:3bdfc1556537	846	p = &fs->win[clst * 2 % SS(fs)];
AlexVC97	0:3bdfc1556537	847	val = LD_WORD(p);
AlexVC97	0:3bdfc1556537	848	break;
AlexVC97	0:3bdfc1556537	849
AlexVC97	0:3bdfc1556537	850	case FS_FAT32 :
AlexVC97	0:3bdfc1556537	851	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;
AlexVC97	0:3bdfc1556537	852	p = &fs->win[clst * 4 % SS(fs)];
AlexVC97	0:3bdfc1556537	853	val = LD_DWORD(p) & 0x0FFFFFFF;
AlexVC97	0:3bdfc1556537	854	break;
AlexVC97	0:3bdfc1556537	855
AlexVC97	0:3bdfc1556537	856	default:
AlexVC97	0:3bdfc1556537	857	val = 1; /* Internal error */
AlexVC97	0:3bdfc1556537	858	}
AlexVC97	0:3bdfc1556537	859	}
AlexVC97	0:3bdfc1556537	860
AlexVC97	0:3bdfc1556537	861	return val;
AlexVC97	0:3bdfc1556537	862	}
AlexVC97	0:3bdfc1556537	863
AlexVC97	0:3bdfc1556537	864
AlexVC97	0:3bdfc1556537	865
AlexVC97	0:3bdfc1556537	866
AlexVC97	0:3bdfc1556537	867	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	868	/* FAT access - Change value of a FAT entry */
AlexVC97	0:3bdfc1556537	869	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	870	/* Hidden API for hacks and disk tools */
AlexVC97	0:3bdfc1556537	871
AlexVC97	0:3bdfc1556537	872	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	873	FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */
AlexVC97	0:3bdfc1556537	874	FATFS* fs, /* File system object */
AlexVC97	0:3bdfc1556537	875	DWORD clst, /* FAT index number (cluster number) to be changed */
AlexVC97	0:3bdfc1556537	876	DWORD val /* New value to be set to the entry */
AlexVC97	0:3bdfc1556537	877	)
AlexVC97	0:3bdfc1556537	878	{
AlexVC97	0:3bdfc1556537	879	UINT bc;
AlexVC97	0:3bdfc1556537	880	BYTE *p;
AlexVC97	0:3bdfc1556537	881	FRESULT res;
AlexVC97	0:3bdfc1556537	882
AlexVC97	0:3bdfc1556537	883
AlexVC97	0:3bdfc1556537	884	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
AlexVC97	0:3bdfc1556537	885	res = FR_INT_ERR;
AlexVC97	0:3bdfc1556537	886
AlexVC97	0:3bdfc1556537	887	} else {
AlexVC97	0:3bdfc1556537	888	switch (fs->fs_type) {
AlexVC97	0:3bdfc1556537	889	case FS_FAT12 :
AlexVC97	0:3bdfc1556537	890	bc = (UINT)clst; bc += bc / 2;
AlexVC97	0:3bdfc1556537	891	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
AlexVC97	0:3bdfc1556537	892	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	893	p = &fs->win[bc++ % SS(fs)];
AlexVC97	0:3bdfc1556537	894	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
AlexVC97	0:3bdfc1556537	895	fs->wflag = 1;
AlexVC97	0:3bdfc1556537	896	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
AlexVC97	0:3bdfc1556537	897	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	898	p = &fs->win[bc % SS(fs)];
AlexVC97	0:3bdfc1556537	899	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
AlexVC97	0:3bdfc1556537	900	fs->wflag = 1;
AlexVC97	0:3bdfc1556537	901	break;
AlexVC97	0:3bdfc1556537	902
AlexVC97	0:3bdfc1556537	903	case FS_FAT16 :
AlexVC97	0:3bdfc1556537	904	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
AlexVC97	0:3bdfc1556537	905	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	906	p = &fs->win[clst * 2 % SS(fs)];
AlexVC97	0:3bdfc1556537	907	ST_WORD(p, (WORD)val);
AlexVC97	0:3bdfc1556537	908	fs->wflag = 1;
AlexVC97	0:3bdfc1556537	909	break;
AlexVC97	0:3bdfc1556537	910
AlexVC97	0:3bdfc1556537	911	case FS_FAT32 :
AlexVC97	0:3bdfc1556537	912	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
AlexVC97	0:3bdfc1556537	913	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	914	p = &fs->win[clst * 4 % SS(fs)];
AlexVC97	0:3bdfc1556537	915	val \|= LD_DWORD(p) & 0xF0000000;
AlexVC97	0:3bdfc1556537	916	ST_DWORD(p, val);
AlexVC97	0:3bdfc1556537	917	fs->wflag = 1;
AlexVC97	0:3bdfc1556537	918	break;
AlexVC97	0:3bdfc1556537	919
AlexVC97	0:3bdfc1556537	920	default :
AlexVC97	0:3bdfc1556537	921	res = FR_INT_ERR;
AlexVC97	0:3bdfc1556537	922	}
AlexVC97	0:3bdfc1556537	923	}
AlexVC97	0:3bdfc1556537	924
AlexVC97	0:3bdfc1556537	925	return res;
AlexVC97	0:3bdfc1556537	926	}
AlexVC97	0:3bdfc1556537	927	#endif /* !_FS_READONLY */
AlexVC97	0:3bdfc1556537	928
AlexVC97	0:3bdfc1556537	929
AlexVC97	0:3bdfc1556537	930
AlexVC97	0:3bdfc1556537	931
AlexVC97	0:3bdfc1556537	932	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	933	/* FAT handling - Remove a cluster chain */
AlexVC97	0:3bdfc1556537	934	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	935	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	936	static
AlexVC97	0:3bdfc1556537	937	FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */
AlexVC97	0:3bdfc1556537	938	FATFS* fs, /* File system object */
AlexVC97	0:3bdfc1556537	939	DWORD clst /* Cluster# to remove a chain from */
AlexVC97	0:3bdfc1556537	940	)
AlexVC97	0:3bdfc1556537	941	{
AlexVC97	0:3bdfc1556537	942	FRESULT res;
AlexVC97	0:3bdfc1556537	943	DWORD nxt;
AlexVC97	0:3bdfc1556537	944	#if _USE_TRIM
AlexVC97	0:3bdfc1556537	945	DWORD scl = clst, ecl = clst, rt[2];
AlexVC97	0:3bdfc1556537	946	#endif
AlexVC97	0:3bdfc1556537	947
AlexVC97	0:3bdfc1556537	948	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
AlexVC97	0:3bdfc1556537	949	res = FR_INT_ERR;
AlexVC97	0:3bdfc1556537	950
AlexVC97	0:3bdfc1556537	951	} else {
AlexVC97	0:3bdfc1556537	952	res = FR_OK;
AlexVC97	0:3bdfc1556537	953	while (clst < fs->n_fatent) { /* Not a last link? */
AlexVC97	0:3bdfc1556537	954	nxt = get_fat(fs, clst); /* Get cluster status */
AlexVC97	0:3bdfc1556537	955	if (nxt == 0) break; /* Empty cluster? */
AlexVC97	0:3bdfc1556537	956	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
AlexVC97	0:3bdfc1556537	957	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
AlexVC97	0:3bdfc1556537	958	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
AlexVC97	0:3bdfc1556537	959	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	960	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSINFO */
AlexVC97	0:3bdfc1556537	961	fs->free_clust++;
AlexVC97	0:3bdfc1556537	962	fs->fsi_flag \|= 1;
AlexVC97	0:3bdfc1556537	963	}
AlexVC97	0:3bdfc1556537	964	#if _USE_TRIM
AlexVC97	0:3bdfc1556537	965	if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
AlexVC97	0:3bdfc1556537	966	ecl = nxt;
AlexVC97	0:3bdfc1556537	967	} else { /* End of contiguous clusters */
AlexVC97	0:3bdfc1556537	968	rt[0] = clust2sect(fs, scl); /* Start sector */
AlexVC97	0:3bdfc1556537	969	rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
AlexVC97	0:3bdfc1556537	970	disk_ioctl(fs->drv, CTRL_TRIM, rt); /* Erase the block */
AlexVC97	0:3bdfc1556537	971	scl = ecl = nxt;
AlexVC97	0:3bdfc1556537	972	}
AlexVC97	0:3bdfc1556537	973	#endif
AlexVC97	0:3bdfc1556537	974	clst = nxt; /* Next cluster */
AlexVC97	0:3bdfc1556537	975	}
AlexVC97	0:3bdfc1556537	976	}
AlexVC97	0:3bdfc1556537	977
AlexVC97	0:3bdfc1556537	978	return res;
AlexVC97	0:3bdfc1556537	979	}
AlexVC97	0:3bdfc1556537	980	#endif
AlexVC97	0:3bdfc1556537	981
AlexVC97	0:3bdfc1556537	982
AlexVC97	0:3bdfc1556537	983
AlexVC97	0:3bdfc1556537	984
AlexVC97	0:3bdfc1556537	985	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	986	/* FAT handling - Stretch or Create a cluster chain */
AlexVC97	0:3bdfc1556537	987	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	988	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	989	static
AlexVC97	0:3bdfc1556537	990	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
AlexVC97	0:3bdfc1556537	991	FATFS* fs, /* File system object */
AlexVC97	0:3bdfc1556537	992	DWORD clst /* Cluster# to stretch, 0:Create a new chain */
AlexVC97	0:3bdfc1556537	993	)
AlexVC97	0:3bdfc1556537	994	{
AlexVC97	0:3bdfc1556537	995	DWORD cs, ncl, scl;
AlexVC97	0:3bdfc1556537	996	FRESULT res;
AlexVC97	0:3bdfc1556537	997
AlexVC97	0:3bdfc1556537	998
AlexVC97	0:3bdfc1556537	999	if (clst == 0) { /* Create a new chain */
AlexVC97	0:3bdfc1556537	1000	scl = fs->last_clust; /* Get suggested start point */
AlexVC97	0:3bdfc1556537	1001	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
AlexVC97	0:3bdfc1556537	1002	}
AlexVC97	0:3bdfc1556537	1003	else { /* Stretch the current chain */
AlexVC97	0:3bdfc1556537	1004	cs = get_fat(fs, clst); /* Check the cluster status */
AlexVC97	0:3bdfc1556537	1005	if (cs < 2) return 1; /* Invalid value */
AlexVC97	0:3bdfc1556537	1006	if (cs == 0xFFFFFFFF) return cs; /* A disk error occurred */
AlexVC97	0:3bdfc1556537	1007	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
AlexVC97	0:3bdfc1556537	1008	scl = clst;
AlexVC97	0:3bdfc1556537	1009	}
AlexVC97	0:3bdfc1556537	1010
AlexVC97	0:3bdfc1556537	1011	ncl = scl; /* Start cluster */
AlexVC97	0:3bdfc1556537	1012	for (;;) {
AlexVC97	0:3bdfc1556537	1013	ncl++; /* Next cluster */
AlexVC97	0:3bdfc1556537	1014	if (ncl >= fs->n_fatent) { /* Check wrap around */
AlexVC97	0:3bdfc1556537	1015	ncl = 2;
AlexVC97	0:3bdfc1556537	1016	if (ncl > scl) return 0; /* No free cluster */
AlexVC97	0:3bdfc1556537	1017	}
AlexVC97	0:3bdfc1556537	1018	cs = get_fat(fs, ncl); /* Get the cluster status */
AlexVC97	0:3bdfc1556537	1019	if (cs == 0) break; /* Found a free cluster */
AlexVC97	0:3bdfc1556537	1020	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
AlexVC97	0:3bdfc1556537	1021	return cs;
AlexVC97	0:3bdfc1556537	1022	if (ncl == scl) return 0; /* No free cluster */
AlexVC97	0:3bdfc1556537	1023	}
AlexVC97	0:3bdfc1556537	1024
AlexVC97	0:3bdfc1556537	1025	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
AlexVC97	0:3bdfc1556537	1026	if (res == FR_OK && clst != 0) {
AlexVC97	0:3bdfc1556537	1027	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
AlexVC97	0:3bdfc1556537	1028	}
AlexVC97	0:3bdfc1556537	1029	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	1030	fs->last_clust = ncl; /* Update FSINFO */
AlexVC97	0:3bdfc1556537	1031	if (fs->free_clust != 0xFFFFFFFF) {
AlexVC97	0:3bdfc1556537	1032	fs->free_clust--;
AlexVC97	0:3bdfc1556537	1033	fs->fsi_flag \|= 1;
AlexVC97	0:3bdfc1556537	1034	}
AlexVC97	0:3bdfc1556537	1035	} else {
AlexVC97	0:3bdfc1556537	1036	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
AlexVC97	0:3bdfc1556537	1037	}
AlexVC97	0:3bdfc1556537	1038
AlexVC97	0:3bdfc1556537	1039	return ncl; /* Return new cluster number or error code */
AlexVC97	0:3bdfc1556537	1040	}
AlexVC97	0:3bdfc1556537	1041	#endif /* !_FS_READONLY */
AlexVC97	0:3bdfc1556537	1042
AlexVC97	0:3bdfc1556537	1043
AlexVC97	0:3bdfc1556537	1044
AlexVC97	0:3bdfc1556537	1045
AlexVC97	0:3bdfc1556537	1046	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1047	/* FAT handling - Convert offset into cluster with link map table */
AlexVC97	0:3bdfc1556537	1048	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1049
AlexVC97	0:3bdfc1556537	1050	#if _USE_FASTSEEK
AlexVC97	0:3bdfc1556537	1051	static
AlexVC97	0:3bdfc1556537	1052	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
AlexVC97	0:3bdfc1556537	1053	FIL* fp, /* Pointer to the file object */
AlexVC97	0:3bdfc1556537	1054	DWORD ofs /* File offset to be converted to cluster# */
AlexVC97	0:3bdfc1556537	1055	)
AlexVC97	0:3bdfc1556537	1056	{
AlexVC97	0:3bdfc1556537	1057	DWORD cl, ncl, *tbl;
AlexVC97	0:3bdfc1556537	1058
AlexVC97	0:3bdfc1556537	1059
AlexVC97	0:3bdfc1556537	1060	tbl = fp->cltbl + 1; /* Top of CLMT */
AlexVC97	0:3bdfc1556537	1061	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
AlexVC97	0:3bdfc1556537	1062	for (;;) {
AlexVC97	0:3bdfc1556537	1063	ncl = tbl++; / Number of cluters in the fragment */
AlexVC97	0:3bdfc1556537	1064	if (!ncl) return 0; /* End of table? (error) */
AlexVC97	0:3bdfc1556537	1065	if (cl < ncl) break; /* In this fragment? */
AlexVC97	0:3bdfc1556537	1066	cl -= ncl; tbl++; /* Next fragment */
AlexVC97	0:3bdfc1556537	1067	}
AlexVC97	0:3bdfc1556537	1068	return cl + tbl; / Return the cluster number */
AlexVC97	0:3bdfc1556537	1069	}
AlexVC97	0:3bdfc1556537	1070	#endif /* _USE_FASTSEEK */
AlexVC97	0:3bdfc1556537	1071
AlexVC97	0:3bdfc1556537	1072
AlexVC97	0:3bdfc1556537	1073
AlexVC97	0:3bdfc1556537	1074
AlexVC97	0:3bdfc1556537	1075	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1076	/* Directory handling - Set directory index */
AlexVC97	0:3bdfc1556537	1077	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1078
AlexVC97	0:3bdfc1556537	1079	static
AlexVC97	0:3bdfc1556537	1080	FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */
AlexVC97	0:3bdfc1556537	1081	FATFS_DIR* dp, /* Pointer to directory object */
AlexVC97	0:3bdfc1556537	1082	UINT idx /* Index of directory table */
AlexVC97	0:3bdfc1556537	1083	)
AlexVC97	0:3bdfc1556537	1084	{
AlexVC97	0:3bdfc1556537	1085	DWORD clst, sect;
AlexVC97	0:3bdfc1556537	1086	UINT ic;
AlexVC97	0:3bdfc1556537	1087
AlexVC97	0:3bdfc1556537	1088
AlexVC97	0:3bdfc1556537	1089	dp->index = (WORD)idx; /* Current index */
AlexVC97	0:3bdfc1556537	1090	clst = dp->sclust; /* Table start cluster (0:root) */
AlexVC97	0:3bdfc1556537	1091	if (clst == 1 \|\| clst >= dp->fs->n_fatent) /* Check start cluster range */
AlexVC97	0:3bdfc1556537	1092	return FR_INT_ERR;
AlexVC97	0:3bdfc1556537	1093	if (!clst && dp->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
AlexVC97	0:3bdfc1556537	1094	clst = dp->fs->dirbase;
AlexVC97	0:3bdfc1556537	1095
AlexVC97	0:3bdfc1556537	1096	if (clst == 0) { /* Static table (root-directory in FAT12/16) */
AlexVC97	0:3bdfc1556537	1097	if (idx >= dp->fs->n_rootdir) /* Is index out of range? */
AlexVC97	0:3bdfc1556537	1098	return FR_INT_ERR;
AlexVC97	0:3bdfc1556537	1099	sect = dp->fs->dirbase;
AlexVC97	0:3bdfc1556537	1100	}
AlexVC97	0:3bdfc1556537	1101	else { /* Dynamic table (root-directory in FAT32 or sub-directory) */
AlexVC97	0:3bdfc1556537	1102	ic = SS(dp->fs) / SZ_DIRE * dp->fs->csize; /* Entries per cluster */
AlexVC97	0:3bdfc1556537	1103	while (idx >= ic) { /* Follow cluster chain */
AlexVC97	0:3bdfc1556537	1104	clst = get_fat(dp->fs, clst); /* Get next cluster */
AlexVC97	0:3bdfc1556537	1105	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
AlexVC97	0:3bdfc1556537	1106	if (clst < 2 \|\| clst >= dp->fs->n_fatent) /* Reached to end of table or internal error */
AlexVC97	0:3bdfc1556537	1107	return FR_INT_ERR;
AlexVC97	0:3bdfc1556537	1108	idx -= ic;
AlexVC97	0:3bdfc1556537	1109	}
AlexVC97	0:3bdfc1556537	1110	sect = clust2sect(dp->fs, clst);
AlexVC97	0:3bdfc1556537	1111	}
AlexVC97	0:3bdfc1556537	1112	dp->clust = clst; /* Current cluster# */
AlexVC97	0:3bdfc1556537	1113	if (!sect) return FR_INT_ERR;
AlexVC97	0:3bdfc1556537	1114	dp->sect = sect + idx / (SS(dp->fs) / SZ_DIRE); /* Sector# of the directory entry */
AlexVC97	0:3bdfc1556537	1115	dp->dir = dp->fs->win + (idx % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Ptr to the entry in the sector */
AlexVC97	0:3bdfc1556537	1116
AlexVC97	0:3bdfc1556537	1117	return FR_OK;
AlexVC97	0:3bdfc1556537	1118	}
AlexVC97	0:3bdfc1556537	1119
AlexVC97	0:3bdfc1556537	1120
AlexVC97	0:3bdfc1556537	1121
AlexVC97	0:3bdfc1556537	1122
AlexVC97	0:3bdfc1556537	1123	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1124	/* Directory handling - Move directory table index next */
AlexVC97	0:3bdfc1556537	1125	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1126
AlexVC97	0:3bdfc1556537	1127	static
AlexVC97	0:3bdfc1556537	1128	FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
AlexVC97	0:3bdfc1556537	1129	FATFS_DIR* dp, /* Pointer to the directory object */
AlexVC97	0:3bdfc1556537	1130	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
AlexVC97	0:3bdfc1556537	1131	)
AlexVC97	0:3bdfc1556537	1132	{
AlexVC97	0:3bdfc1556537	1133	DWORD clst;
AlexVC97	0:3bdfc1556537	1134	UINT i;
AlexVC97	0:3bdfc1556537	1135	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	1136	UINT c;
AlexVC97	0:3bdfc1556537	1137	#endif
AlexVC97	0:3bdfc1556537	1138
AlexVC97	0:3bdfc1556537	1139
AlexVC97	0:3bdfc1556537	1140	i = dp->index + 1;
AlexVC97	0:3bdfc1556537	1141	if (!(i & 0xFFFF) \|\| !dp->sect) /* Report EOT when index has reached 65535 */
AlexVC97	0:3bdfc1556537	1142	return FR_NO_FILE;
AlexVC97	0:3bdfc1556537	1143
AlexVC97	0:3bdfc1556537	1144	if (!(i % (SS(dp->fs) / SZ_DIRE))) { /* Sector changed? */
AlexVC97	0:3bdfc1556537	1145	dp->sect++; /* Next sector */
AlexVC97	0:3bdfc1556537	1146
AlexVC97	0:3bdfc1556537	1147	if (!dp->clust) { /* Static table */
AlexVC97	0:3bdfc1556537	1148	if (i >= dp->fs->n_rootdir) /* Report EOT if it reached end of static table */
AlexVC97	0:3bdfc1556537	1149	return FR_NO_FILE;
AlexVC97	0:3bdfc1556537	1150	}
AlexVC97	0:3bdfc1556537	1151	else { /* Dynamic table */
AlexVC97	0:3bdfc1556537	1152	if (((i / (SS(dp->fs) / SZ_DIRE)) & (dp->fs->csize - 1)) == 0) { /* Cluster changed? */
AlexVC97	0:3bdfc1556537	1153	clst = get_fat(dp->fs, dp->clust); /* Get next cluster */
AlexVC97	0:3bdfc1556537	1154	if (clst <= 1) return FR_INT_ERR;
AlexVC97	0:3bdfc1556537	1155	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	1156	if (clst >= dp->fs->n_fatent) { /* If it reached end of dynamic table, */
AlexVC97	0:3bdfc1556537	1157	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	1158	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT */
AlexVC97	0:3bdfc1556537	1159	clst = create_chain(dp->fs, dp->clust); /* Stretch cluster chain */
AlexVC97	0:3bdfc1556537	1160	if (clst == 0) return FR_DENIED; /* No free cluster */
AlexVC97	0:3bdfc1556537	1161	if (clst == 1) return FR_INT_ERR;
AlexVC97	0:3bdfc1556537	1162	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	1163	/* Clean-up stretched table */
AlexVC97	0:3bdfc1556537	1164	if (sync_window(dp->fs)) return FR_DISK_ERR;/* Flush disk access window */
AlexVC97	0:3bdfc1556537	1165	mem_set(dp->fs->win, 0, SS(dp->fs)); /* Clear window buffer */
AlexVC97	0:3bdfc1556537	1166	dp->fs->winsect = clust2sect(dp->fs, clst); /* Cluster start sector */
AlexVC97	0:3bdfc1556537	1167	for (c = 0; c < dp->fs->csize; c++) { /* Fill the new cluster with 0 */
AlexVC97	0:3bdfc1556537	1168	dp->fs->wflag = 1;
AlexVC97	0:3bdfc1556537	1169	if (sync_window(dp->fs)) return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	1170	dp->fs->winsect++;
AlexVC97	0:3bdfc1556537	1171	}
AlexVC97	0:3bdfc1556537	1172	dp->fs->winsect -= c; /* Rewind window offset */
AlexVC97	0:3bdfc1556537	1173	#else
AlexVC97	0:3bdfc1556537	1174	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT (this is to suppress warning) */
AlexVC97	0:3bdfc1556537	1175	return FR_NO_FILE; /* Report EOT */
AlexVC97	0:3bdfc1556537	1176	#endif
AlexVC97	0:3bdfc1556537	1177	}
AlexVC97	0:3bdfc1556537	1178	dp->clust = clst; /* Initialize data for new cluster */
AlexVC97	0:3bdfc1556537	1179	dp->sect = clust2sect(dp->fs, clst);
AlexVC97	0:3bdfc1556537	1180	}
AlexVC97	0:3bdfc1556537	1181	}
AlexVC97	0:3bdfc1556537	1182	}
AlexVC97	0:3bdfc1556537	1183
AlexVC97	0:3bdfc1556537	1184	dp->index = (WORD)i; /* Current index */
AlexVC97	0:3bdfc1556537	1185	dp->dir = dp->fs->win + (i % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Current entry in the window */
AlexVC97	0:3bdfc1556537	1186
AlexVC97	0:3bdfc1556537	1187	return FR_OK;
AlexVC97	0:3bdfc1556537	1188	}
AlexVC97	0:3bdfc1556537	1189
AlexVC97	0:3bdfc1556537	1190
AlexVC97	0:3bdfc1556537	1191
AlexVC97	0:3bdfc1556537	1192
AlexVC97	0:3bdfc1556537	1193	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1194	/* Directory handling - Reserve directory entry */
AlexVC97	0:3bdfc1556537	1195	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1196
AlexVC97	0:3bdfc1556537	1197	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	1198	static
AlexVC97	0:3bdfc1556537	1199	FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */
AlexVC97	0:3bdfc1556537	1200	FATFS_DIR* dp, /* Pointer to the directory object */
AlexVC97	0:3bdfc1556537	1201	UINT nent /* Number of contiguous entries to allocate (1-21) */
AlexVC97	0:3bdfc1556537	1202	)
AlexVC97	0:3bdfc1556537	1203	{
AlexVC97	0:3bdfc1556537	1204	FRESULT res;
AlexVC97	0:3bdfc1556537	1205	UINT n;
AlexVC97	0:3bdfc1556537	1206
AlexVC97	0:3bdfc1556537	1207
AlexVC97	0:3bdfc1556537	1208	res = dir_sdi(dp, 0);
AlexVC97	0:3bdfc1556537	1209	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	1210	n = 0;
AlexVC97	0:3bdfc1556537	1211	do {
AlexVC97	0:3bdfc1556537	1212	res = move_window(dp->fs, dp->sect);
AlexVC97	0:3bdfc1556537	1213	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	1214	if (dp->dir[0] == DDEM \|\| dp->dir[0] == 0) { /* Is it a free entry? */
AlexVC97	0:3bdfc1556537	1215	if (++n == nent) break; /* A block of contiguous free entries is found */
AlexVC97	0:3bdfc1556537	1216	} else {
AlexVC97	0:3bdfc1556537	1217	n = 0; /* Not a blank entry. Restart to search */
AlexVC97	0:3bdfc1556537	1218	}
AlexVC97	0:3bdfc1556537	1219	res = dir_next(dp, 1); /* Next entry with table stretch enabled */
AlexVC97	0:3bdfc1556537	1220	} while (res == FR_OK);
AlexVC97	0:3bdfc1556537	1221	}
AlexVC97	0:3bdfc1556537	1222	if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */
AlexVC97	0:3bdfc1556537	1223	return res;
AlexVC97	0:3bdfc1556537	1224	}
AlexVC97	0:3bdfc1556537	1225	#endif
AlexVC97	0:3bdfc1556537	1226
AlexVC97	0:3bdfc1556537	1227
AlexVC97	0:3bdfc1556537	1228
AlexVC97	0:3bdfc1556537	1229
AlexVC97	0:3bdfc1556537	1230	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1231	/* Directory handling - Load/Store start cluster number */
AlexVC97	0:3bdfc1556537	1232	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1233
AlexVC97	0:3bdfc1556537	1234	static
AlexVC97	0:3bdfc1556537	1235	DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */
AlexVC97	0:3bdfc1556537	1236	FATFS* fs, /* Pointer to the fs object */
AlexVC97	0:3bdfc1556537	1237	const BYTE* dir /* Pointer to the SFN entry */
AlexVC97	0:3bdfc1556537	1238	)
AlexVC97	0:3bdfc1556537	1239	{
AlexVC97	0:3bdfc1556537	1240	DWORD cl;
AlexVC97	0:3bdfc1556537	1241
AlexVC97	0:3bdfc1556537	1242	cl = LD_WORD(dir + DIR_FstClusLO);
AlexVC97	0:3bdfc1556537	1243	if (fs->fs_type == FS_FAT32)
AlexVC97	0:3bdfc1556537	1244	cl \|= (DWORD)LD_WORD(dir + DIR_FstClusHI) << 16;
AlexVC97	0:3bdfc1556537	1245
AlexVC97	0:3bdfc1556537	1246	return cl;
AlexVC97	0:3bdfc1556537	1247	}
AlexVC97	0:3bdfc1556537	1248
AlexVC97	0:3bdfc1556537	1249
AlexVC97	0:3bdfc1556537	1250	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	1251	static
AlexVC97	0:3bdfc1556537	1252	void st_clust (
AlexVC97	0:3bdfc1556537	1253	BYTE* dir, /* Pointer to the SFN entry */
AlexVC97	0:3bdfc1556537	1254	DWORD cl /* Value to be set */
AlexVC97	0:3bdfc1556537	1255	)
AlexVC97	0:3bdfc1556537	1256	{
AlexVC97	0:3bdfc1556537	1257	ST_WORD(dir + DIR_FstClusLO, cl);
AlexVC97	0:3bdfc1556537	1258	ST_WORD(dir + DIR_FstClusHI, cl >> 16);
AlexVC97	0:3bdfc1556537	1259	}
AlexVC97	0:3bdfc1556537	1260	#endif
AlexVC97	0:3bdfc1556537	1261
AlexVC97	0:3bdfc1556537	1262
AlexVC97	0:3bdfc1556537	1263
AlexVC97	0:3bdfc1556537	1264
AlexVC97	0:3bdfc1556537	1265	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1266	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
AlexVC97	0:3bdfc1556537	1267	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1268	#if _USE_LFN
AlexVC97	0:3bdfc1556537	1269	static
AlexVC97	0:3bdfc1556537	1270	const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN characters in the directory entry */
AlexVC97	0:3bdfc1556537	1271
AlexVC97	0:3bdfc1556537	1272
AlexVC97	0:3bdfc1556537	1273	static
AlexVC97	0:3bdfc1556537	1274	int cmp_lfn ( /* 1:matched, 0:not matched */
AlexVC97	0:3bdfc1556537	1275	WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */
AlexVC97	0:3bdfc1556537	1276	BYTE* dir /* Pointer to the directory entry containing the part of LFN */
AlexVC97	0:3bdfc1556537	1277	)
AlexVC97	0:3bdfc1556537	1278	{
AlexVC97	0:3bdfc1556537	1279	UINT i, s;
AlexVC97	0:3bdfc1556537	1280	WCHAR wc, uc;
AlexVC97	0:3bdfc1556537	1281
AlexVC97	0:3bdfc1556537	1282
AlexVC97	0:3bdfc1556537	1283	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
AlexVC97	0:3bdfc1556537	1284
AlexVC97	0:3bdfc1556537	1285	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
AlexVC97	0:3bdfc1556537	1286
AlexVC97	0:3bdfc1556537	1287	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
AlexVC97	0:3bdfc1556537	1288	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
AlexVC97	0:3bdfc1556537	1289	if (wc) {
AlexVC97	0:3bdfc1556537	1290	if (i >= _MAX_LFN \|\| ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) /* Compare it */
AlexVC97	0:3bdfc1556537	1291	return 0; /* Not matched */
AlexVC97	0:3bdfc1556537	1292	wc = uc;
AlexVC97	0:3bdfc1556537	1293	} else {
AlexVC97	0:3bdfc1556537	1294	if (uc != 0xFFFF) return 0; /* Check filler */
AlexVC97	0:3bdfc1556537	1295	}
AlexVC97	0:3bdfc1556537	1296	}
AlexVC97	0:3bdfc1556537	1297
AlexVC97	0:3bdfc1556537	1298	if ((dir[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) /* Last segment matched but different length */
AlexVC97	0:3bdfc1556537	1299	return 0;
AlexVC97	0:3bdfc1556537	1300
AlexVC97	0:3bdfc1556537	1301	return 1; /* The part of LFN matched */
AlexVC97	0:3bdfc1556537	1302	}
AlexVC97	0:3bdfc1556537	1303
AlexVC97	0:3bdfc1556537	1304
AlexVC97	0:3bdfc1556537	1305
AlexVC97	0:3bdfc1556537	1306	static
AlexVC97	0:3bdfc1556537	1307	int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */
AlexVC97	0:3bdfc1556537	1308	WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
AlexVC97	0:3bdfc1556537	1309	BYTE* dir /* Pointer to the LFN entry */
AlexVC97	0:3bdfc1556537	1310	)
AlexVC97	0:3bdfc1556537	1311	{
AlexVC97	0:3bdfc1556537	1312	UINT i, s;
AlexVC97	0:3bdfc1556537	1313	WCHAR wc, uc;
AlexVC97	0:3bdfc1556537	1314
AlexVC97	0:3bdfc1556537	1315
AlexVC97	0:3bdfc1556537	1316	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
AlexVC97	0:3bdfc1556537	1317
AlexVC97	0:3bdfc1556537	1318	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
AlexVC97	0:3bdfc1556537	1319
AlexVC97	0:3bdfc1556537	1320	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
AlexVC97	0:3bdfc1556537	1321	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
AlexVC97	0:3bdfc1556537	1322	if (wc) {
AlexVC97	0:3bdfc1556537	1323	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
AlexVC97	0:3bdfc1556537	1324	lfnbuf[i++] = wc = uc; /* Store it */
AlexVC97	0:3bdfc1556537	1325	} else {
AlexVC97	0:3bdfc1556537	1326	if (uc != 0xFFFF) return 0; /* Check filler */
AlexVC97	0:3bdfc1556537	1327	}
AlexVC97	0:3bdfc1556537	1328	}
AlexVC97	0:3bdfc1556537	1329
AlexVC97	0:3bdfc1556537	1330	if (dir[LDIR_Ord] & LLEF) { /* Put terminator if it is the last LFN part */
AlexVC97	0:3bdfc1556537	1331	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
AlexVC97	0:3bdfc1556537	1332	lfnbuf[i] = 0;
AlexVC97	0:3bdfc1556537	1333	}
AlexVC97	0:3bdfc1556537	1334
AlexVC97	0:3bdfc1556537	1335	return 1; /* The part of LFN is valid */
AlexVC97	0:3bdfc1556537	1336	}
AlexVC97	0:3bdfc1556537	1337
AlexVC97	0:3bdfc1556537	1338
AlexVC97	0:3bdfc1556537	1339	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	1340	static
AlexVC97	0:3bdfc1556537	1341	void fit_lfn (
AlexVC97	0:3bdfc1556537	1342	const WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
AlexVC97	0:3bdfc1556537	1343	BYTE* dir, /* Pointer to the LFN entry to be processed */
AlexVC97	0:3bdfc1556537	1344	BYTE ord, /* LFN order (1-20) */
AlexVC97	0:3bdfc1556537	1345	BYTE sum /* Checksum of the corresponding SFN */
AlexVC97	0:3bdfc1556537	1346	)
AlexVC97	0:3bdfc1556537	1347	{
AlexVC97	0:3bdfc1556537	1348	UINT i, s;
AlexVC97	0:3bdfc1556537	1349	WCHAR wc;
AlexVC97	0:3bdfc1556537	1350
AlexVC97	0:3bdfc1556537	1351
AlexVC97	0:3bdfc1556537	1352	dir[LDIR_Chksum] = sum; /* Set checksum */
AlexVC97	0:3bdfc1556537	1353	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
AlexVC97	0:3bdfc1556537	1354	dir[LDIR_Type] = 0;
AlexVC97	0:3bdfc1556537	1355	ST_WORD(dir + LDIR_FstClusLO, 0);
AlexVC97	0:3bdfc1556537	1356
AlexVC97	0:3bdfc1556537	1357	i = (ord - 1) * 13; /* Get offset in the LFN working buffer */
AlexVC97	0:3bdfc1556537	1358	s = wc = 0;
AlexVC97	0:3bdfc1556537	1359	do {
AlexVC97	0:3bdfc1556537	1360	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective character */
AlexVC97	0:3bdfc1556537	1361	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
AlexVC97	0:3bdfc1556537	1362	if (!wc) wc = 0xFFFF; /* Padding characters following last character */
AlexVC97	0:3bdfc1556537	1363	} while (++s < 13);
AlexVC97	0:3bdfc1556537	1364	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLEF; /* Bottom LFN part is the start of LFN sequence */
AlexVC97	0:3bdfc1556537	1365	dir[LDIR_Ord] = ord; /* Set the LFN order */
AlexVC97	0:3bdfc1556537	1366	}
AlexVC97	0:3bdfc1556537	1367
AlexVC97	0:3bdfc1556537	1368	#endif
AlexVC97	0:3bdfc1556537	1369	#endif
AlexVC97	0:3bdfc1556537	1370
AlexVC97	0:3bdfc1556537	1371
AlexVC97	0:3bdfc1556537	1372
AlexVC97	0:3bdfc1556537	1373
AlexVC97	0:3bdfc1556537	1374	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1375	/* Create numbered name */
AlexVC97	0:3bdfc1556537	1376	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1377	#if _USE_LFN
AlexVC97	0:3bdfc1556537	1378	static
AlexVC97	0:3bdfc1556537	1379	void gen_numname (
AlexVC97	0:3bdfc1556537	1380	BYTE* dst, /* Pointer to the buffer to store numbered SFN */
AlexVC97	0:3bdfc1556537	1381	const BYTE* src, /* Pointer to SFN */
AlexVC97	0:3bdfc1556537	1382	const WCHAR* lfn, /* Pointer to LFN */
AlexVC97	0:3bdfc1556537	1383	UINT seq /* Sequence number */
AlexVC97	0:3bdfc1556537	1384	)
AlexVC97	0:3bdfc1556537	1385	{
AlexVC97	0:3bdfc1556537	1386	BYTE ns[8], c;
AlexVC97	0:3bdfc1556537	1387	UINT i, j;
AlexVC97	0:3bdfc1556537	1388	WCHAR wc;
AlexVC97	0:3bdfc1556537	1389	DWORD sr;
AlexVC97	0:3bdfc1556537	1390
AlexVC97	0:3bdfc1556537	1391
AlexVC97	0:3bdfc1556537	1392	mem_cpy(dst, src, 11);
AlexVC97	0:3bdfc1556537	1393
AlexVC97	0:3bdfc1556537	1394	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
AlexVC97	0:3bdfc1556537	1395	sr = seq;
AlexVC97	0:3bdfc1556537	1396	while (lfn) { / Create a CRC */
AlexVC97	0:3bdfc1556537	1397	wc = *lfn++;
AlexVC97	0:3bdfc1556537	1398	for (i = 0; i < 16; i++) {
AlexVC97	0:3bdfc1556537	1399	sr = (sr << 1) + (wc & 1);
AlexVC97	0:3bdfc1556537	1400	wc >>= 1;
AlexVC97	0:3bdfc1556537	1401	if (sr & 0x10000) sr ^= 0x11021;
AlexVC97	0:3bdfc1556537	1402	}
AlexVC97	0:3bdfc1556537	1403	}
AlexVC97	0:3bdfc1556537	1404	seq = (UINT)sr;
AlexVC97	0:3bdfc1556537	1405	}
AlexVC97	0:3bdfc1556537	1406
AlexVC97	0:3bdfc1556537	1407	/* itoa (hexdecimal) */
AlexVC97	0:3bdfc1556537	1408	i = 7;
AlexVC97	0:3bdfc1556537	1409	do {
AlexVC97	0:3bdfc1556537	1410	c = (seq % 16) + '0';
AlexVC97	0:3bdfc1556537	1411	if (c > '9') c += 7;
AlexVC97	0:3bdfc1556537	1412	ns[i--] = c;
AlexVC97	0:3bdfc1556537	1413	seq /= 16;
AlexVC97	0:3bdfc1556537	1414	} while (seq);
AlexVC97	0:3bdfc1556537	1415	ns[i] = '~';
AlexVC97	0:3bdfc1556537	1416
AlexVC97	0:3bdfc1556537	1417	/* Append the number */
AlexVC97	0:3bdfc1556537	1418	for (j = 0; j < i && dst[j] != ' '; j++) {
AlexVC97	0:3bdfc1556537	1419	if (IsDBCS1(dst[j])) {
AlexVC97	0:3bdfc1556537	1420	if (j == i - 1) break;
AlexVC97	0:3bdfc1556537	1421	j++;
AlexVC97	0:3bdfc1556537	1422	}
AlexVC97	0:3bdfc1556537	1423	}
AlexVC97	0:3bdfc1556537	1424	do {
AlexVC97	0:3bdfc1556537	1425	dst[j++] = (i < 8) ? ns[i++] : ' ';
AlexVC97	0:3bdfc1556537	1426	} while (j < 8);
AlexVC97	0:3bdfc1556537	1427	}
AlexVC97	0:3bdfc1556537	1428	#endif
AlexVC97	0:3bdfc1556537	1429
AlexVC97	0:3bdfc1556537	1430
AlexVC97	0:3bdfc1556537	1431
AlexVC97	0:3bdfc1556537	1432
AlexVC97	0:3bdfc1556537	1433	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1434	/* Calculate checksum of an SFN entry */
AlexVC97	0:3bdfc1556537	1435	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1436	#if _USE_LFN
AlexVC97	0:3bdfc1556537	1437	static
AlexVC97	0:3bdfc1556537	1438	BYTE sum_sfn (
AlexVC97	0:3bdfc1556537	1439	const BYTE* dir /* Pointer to the SFN entry */
AlexVC97	0:3bdfc1556537	1440	)
AlexVC97	0:3bdfc1556537	1441	{
AlexVC97	0:3bdfc1556537	1442	BYTE sum = 0;
AlexVC97	0:3bdfc1556537	1443	UINT n = 11;
AlexVC97	0:3bdfc1556537	1444
AlexVC97	0:3bdfc1556537	1445	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
AlexVC97	0:3bdfc1556537	1446	return sum;
AlexVC97	0:3bdfc1556537	1447	}
AlexVC97	0:3bdfc1556537	1448	#endif
AlexVC97	0:3bdfc1556537	1449
AlexVC97	0:3bdfc1556537	1450
AlexVC97	0:3bdfc1556537	1451
AlexVC97	0:3bdfc1556537	1452
AlexVC97	0:3bdfc1556537	1453	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1454	/* Directory handling - Find an object in the directory */
AlexVC97	0:3bdfc1556537	1455	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1456
AlexVC97	0:3bdfc1556537	1457	static
AlexVC97	0:3bdfc1556537	1458	FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */
AlexVC97	0:3bdfc1556537	1459	FATFS_DIR* dp /* Pointer to the directory object linked to the file name */
AlexVC97	0:3bdfc1556537	1460	)
AlexVC97	0:3bdfc1556537	1461	{
AlexVC97	0:3bdfc1556537	1462	FRESULT res;
AlexVC97	0:3bdfc1556537	1463	BYTE c, *dir;
AlexVC97	0:3bdfc1556537	1464	#if _USE_LFN
AlexVC97	0:3bdfc1556537	1465	BYTE a, ord, sum;
AlexVC97	0:3bdfc1556537	1466	#endif
AlexVC97	0:3bdfc1556537	1467
AlexVC97	0:3bdfc1556537	1468	res = dir_sdi(dp, 0); /* Rewind directory object */
AlexVC97	0:3bdfc1556537	1469	if (res != FR_OK) return res;
AlexVC97	0:3bdfc1556537	1470
AlexVC97	0:3bdfc1556537	1471	#if _USE_LFN
AlexVC97	0:3bdfc1556537	1472	ord = sum = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
AlexVC97	0:3bdfc1556537	1473	#endif
AlexVC97	0:3bdfc1556537	1474	do {
AlexVC97	0:3bdfc1556537	1475	res = move_window(dp->fs, dp->sect);
AlexVC97	0:3bdfc1556537	1476	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	1477	dir = dp->dir; /* Ptr to the directory entry of current index */
AlexVC97	0:3bdfc1556537	1478	c = dir[DIR_Name];
AlexVC97	0:3bdfc1556537	1479	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
AlexVC97	0:3bdfc1556537	1480	#if _USE_LFN /* LFN configuration */
AlexVC97	0:3bdfc1556537	1481	a = dir[DIR_Attr] & AM_MASK;
AlexVC97	0:3bdfc1556537	1482	if (c == DDEM \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
AlexVC97	0:3bdfc1556537	1483	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
AlexVC97	0:3bdfc1556537	1484	} else {
AlexVC97	0:3bdfc1556537	1485	if (a == AM_LFN) { /* An LFN entry is found */
AlexVC97	0:3bdfc1556537	1486	if (dp->lfn) {
AlexVC97	0:3bdfc1556537	1487	if (c & LLEF) { /* Is it start of LFN sequence? */
AlexVC97	0:3bdfc1556537	1488	sum = dir[LDIR_Chksum];
AlexVC97	0:3bdfc1556537	1489	c &= ~LLEF; ord = c; /* LFN start order */
AlexVC97	0:3bdfc1556537	1490	dp->lfn_idx = dp->index; /* Start index of LFN */
AlexVC97	0:3bdfc1556537	1491	}
AlexVC97	0:3bdfc1556537	1492	/* Check validity of the LFN entry and compare it with given name */
AlexVC97	0:3bdfc1556537	1493	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
AlexVC97	0:3bdfc1556537	1494	}
AlexVC97	0:3bdfc1556537	1495	} else { /* An SFN entry is found */
AlexVC97	0:3bdfc1556537	1496	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
AlexVC97	0:3bdfc1556537	1497	if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(dir, dp->fn, 11)) break; /* SFN matched? */
AlexVC97	0:3bdfc1556537	1498	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
AlexVC97	0:3bdfc1556537	1499	}
AlexVC97	0:3bdfc1556537	1500	}
AlexVC97	0:3bdfc1556537	1501	#else /* Non LFN configuration */
AlexVC97	0:3bdfc1556537	1502	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dp->fn, 11)) /* Is it a valid entry? */
AlexVC97	0:3bdfc1556537	1503	break;
AlexVC97	0:3bdfc1556537	1504	#endif
AlexVC97	0:3bdfc1556537	1505	res = dir_next(dp, 0); /* Next entry */
AlexVC97	0:3bdfc1556537	1506	} while (res == FR_OK);
AlexVC97	0:3bdfc1556537	1507
AlexVC97	0:3bdfc1556537	1508	return res;
AlexVC97	0:3bdfc1556537	1509	}
AlexVC97	0:3bdfc1556537	1510
AlexVC97	0:3bdfc1556537	1511
AlexVC97	0:3bdfc1556537	1512
AlexVC97	0:3bdfc1556537	1513
AlexVC97	0:3bdfc1556537	1514	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1515	/* Read an object from the directory */
AlexVC97	0:3bdfc1556537	1516	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1517	#if _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2
AlexVC97	0:3bdfc1556537	1518	static
AlexVC97	0:3bdfc1556537	1519	FRESULT dir_read (
AlexVC97	0:3bdfc1556537	1520	FATFS_DIR* dp, /* Pointer to the directory object */
AlexVC97	0:3bdfc1556537	1521	int vol /* Filtered by 0:file/directory or 1:volume label */
AlexVC97	0:3bdfc1556537	1522	)
AlexVC97	0:3bdfc1556537	1523	{
AlexVC97	0:3bdfc1556537	1524	FRESULT res;
AlexVC97	0:3bdfc1556537	1525	BYTE a, c, *dir;
AlexVC97	0:3bdfc1556537	1526	#if _USE_LFN
AlexVC97	0:3bdfc1556537	1527	BYTE ord = 0xFF, sum = 0xFF;
AlexVC97	0:3bdfc1556537	1528	#endif
AlexVC97	0:3bdfc1556537	1529
AlexVC97	0:3bdfc1556537	1530	res = FR_NO_FILE;
AlexVC97	0:3bdfc1556537	1531	while (dp->sect) {
AlexVC97	0:3bdfc1556537	1532	res = move_window(dp->fs, dp->sect);
AlexVC97	0:3bdfc1556537	1533	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	1534	dir = dp->dir; /* Ptr to the directory entry of current index */
AlexVC97	0:3bdfc1556537	1535	c = dir[DIR_Name];
AlexVC97	0:3bdfc1556537	1536	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
AlexVC97	0:3bdfc1556537	1537	a = dir[DIR_Attr] & AM_MASK;
AlexVC97	0:3bdfc1556537	1538	#if _USE_LFN /* LFN configuration */
AlexVC97	0:3bdfc1556537	1539	if (c == DDEM \|\| (!_FS_RPATH && c == '.') \|\| (int)((a & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */
AlexVC97	0:3bdfc1556537	1540	ord = 0xFF;
AlexVC97	0:3bdfc1556537	1541	} else {
AlexVC97	0:3bdfc1556537	1542	if (a == AM_LFN) { /* An LFN entry is found */
AlexVC97	0:3bdfc1556537	1543	if (c & LLEF) { /* Is it start of LFN sequence? */
AlexVC97	0:3bdfc1556537	1544	sum = dir[LDIR_Chksum];
AlexVC97	0:3bdfc1556537	1545	c &= ~LLEF; ord = c;
AlexVC97	0:3bdfc1556537	1546	dp->lfn_idx = dp->index;
AlexVC97	0:3bdfc1556537	1547	}
AlexVC97	0:3bdfc1556537	1548	/* Check LFN validity and capture it */
AlexVC97	0:3bdfc1556537	1549	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
AlexVC97	0:3bdfc1556537	1550	} else { /* An SFN entry is found */
AlexVC97	0:3bdfc1556537	1551	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
AlexVC97	0:3bdfc1556537	1552	dp->lfn_idx = 0xFFFF; /* It has no LFN. */
AlexVC97	0:3bdfc1556537	1553	break;
AlexVC97	0:3bdfc1556537	1554	}
AlexVC97	0:3bdfc1556537	1555	}
AlexVC97	0:3bdfc1556537	1556	#else /* Non LFN configuration */
AlexVC97	0:3bdfc1556537	1557	if (c != DDEM && (_FS_RPATH \|\| c != '.') && a != AM_LFN && (int)((a & ~AM_ARC) == AM_VOL) == vol) /* Is it a valid entry? */
AlexVC97	0:3bdfc1556537	1558	break;
AlexVC97	0:3bdfc1556537	1559	#endif
AlexVC97	0:3bdfc1556537	1560	res = dir_next(dp, 0); /* Next entry */
AlexVC97	0:3bdfc1556537	1561	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	1562	}
AlexVC97	0:3bdfc1556537	1563
AlexVC97	0:3bdfc1556537	1564	if (res != FR_OK) dp->sect = 0;
AlexVC97	0:3bdfc1556537	1565
AlexVC97	0:3bdfc1556537	1566	return res;
AlexVC97	0:3bdfc1556537	1567	}
AlexVC97	0:3bdfc1556537	1568	#endif /* _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2 */
AlexVC97	0:3bdfc1556537	1569
AlexVC97	0:3bdfc1556537	1570
AlexVC97	0:3bdfc1556537	1571
AlexVC97	0:3bdfc1556537	1572
AlexVC97	0:3bdfc1556537	1573	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1574	/* Register an object to the directory */
AlexVC97	0:3bdfc1556537	1575	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1576	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	1577	static
AlexVC97	0:3bdfc1556537	1578	FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many SFN collision, FR_DISK_ERR:disk error */
AlexVC97	0:3bdfc1556537	1579	FATFS_DIR* dp /* Target directory with object name to be created */
AlexVC97	0:3bdfc1556537	1580	)
AlexVC97	0:3bdfc1556537	1581	{
AlexVC97	0:3bdfc1556537	1582	FRESULT res;
AlexVC97	0:3bdfc1556537	1583	#if _USE_LFN /* LFN configuration */
AlexVC97	0:3bdfc1556537	1584	UINT n, nent;
AlexVC97	0:3bdfc1556537	1585	BYTE sn[12], *fn, sum;
AlexVC97	0:3bdfc1556537	1586	WCHAR *lfn;
AlexVC97	0:3bdfc1556537	1587
AlexVC97	0:3bdfc1556537	1588
AlexVC97	0:3bdfc1556537	1589	fn = dp->fn; lfn = dp->lfn;
AlexVC97	0:3bdfc1556537	1590	mem_cpy(sn, fn, 12);
AlexVC97	0:3bdfc1556537	1591
AlexVC97	0:3bdfc1556537	1592	if (_FS_RPATH && (sn[NSFLAG] & NS_DOT)) /* Cannot create dot entry */
AlexVC97	0:3bdfc1556537	1593	return FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	1594
AlexVC97	0:3bdfc1556537	1595	if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
AlexVC97	0:3bdfc1556537	1596	fn[NSFLAG] = 0; dp->lfn = 0; /* Find only SFN */
AlexVC97	0:3bdfc1556537	1597	for (n = 1; n < 100; n++) {
AlexVC97	0:3bdfc1556537	1598	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
AlexVC97	0:3bdfc1556537	1599	res = dir_find(dp); /* Check if the name collides with existing SFN */
AlexVC97	0:3bdfc1556537	1600	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	1601	}
AlexVC97	0:3bdfc1556537	1602	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
AlexVC97	0:3bdfc1556537	1603	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
AlexVC97	0:3bdfc1556537	1604	fn[NSFLAG] = sn[NSFLAG]; dp->lfn = lfn;
AlexVC97	0:3bdfc1556537	1605	}
AlexVC97	0:3bdfc1556537	1606
AlexVC97	0:3bdfc1556537	1607	if (sn[NSFLAG] & NS_LFN) { /* When LFN is to be created, allocate entries for an SFN + LFNs. */
AlexVC97	0:3bdfc1556537	1608	for (n = 0; lfn[n]; n++) ;
AlexVC97	0:3bdfc1556537	1609	nent = (n + 25) / 13;
AlexVC97	0:3bdfc1556537	1610	} else { /* Otherwise allocate an entry for an SFN */
AlexVC97	0:3bdfc1556537	1611	nent = 1;
AlexVC97	0:3bdfc1556537	1612	}
AlexVC97	0:3bdfc1556537	1613	res = dir_alloc(dp, nent); /* Allocate entries */
AlexVC97	0:3bdfc1556537	1614
AlexVC97	0:3bdfc1556537	1615	if (res == FR_OK && --nent) { /* Set LFN entry if needed */
AlexVC97	0:3bdfc1556537	1616	res = dir_sdi(dp, dp->index - nent);
AlexVC97	0:3bdfc1556537	1617	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	1618	sum = sum_sfn(dp->fn); /* Checksum value of the SFN tied to the LFN */
AlexVC97	0:3bdfc1556537	1619	do { /* Store LFN entries in bottom first */
AlexVC97	0:3bdfc1556537	1620	res = move_window(dp->fs, dp->sect);
AlexVC97	0:3bdfc1556537	1621	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	1622	fit_lfn(dp->lfn, dp->dir, (BYTE)nent, sum);
AlexVC97	0:3bdfc1556537	1623	dp->fs->wflag = 1;
AlexVC97	0:3bdfc1556537	1624	res = dir_next(dp, 0); /* Next entry */
AlexVC97	0:3bdfc1556537	1625	} while (res == FR_OK && --nent);
AlexVC97	0:3bdfc1556537	1626	}
AlexVC97	0:3bdfc1556537	1627	}
AlexVC97	0:3bdfc1556537	1628	#else /* Non LFN configuration */
AlexVC97	0:3bdfc1556537	1629	res = dir_alloc(dp, 1); /* Allocate an entry for SFN */
AlexVC97	0:3bdfc1556537	1630	#endif
AlexVC97	0:3bdfc1556537	1631
AlexVC97	0:3bdfc1556537	1632	if (res == FR_OK) { /* Set SFN entry */
AlexVC97	0:3bdfc1556537	1633	res = move_window(dp->fs, dp->sect);
AlexVC97	0:3bdfc1556537	1634	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	1635	mem_set(dp->dir, 0, SZ_DIRE); /* Clean the entry */
AlexVC97	0:3bdfc1556537	1636	mem_cpy(dp->dir, dp->fn, 11); /* Put SFN */
AlexVC97	0:3bdfc1556537	1637	#if _USE_LFN
AlexVC97	0:3bdfc1556537	1638	dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY \| NS_EXT); /* Put NT flag */
AlexVC97	0:3bdfc1556537	1639	#endif
AlexVC97	0:3bdfc1556537	1640	dp->fs->wflag = 1;
AlexVC97	0:3bdfc1556537	1641	}
AlexVC97	0:3bdfc1556537	1642	}
AlexVC97	0:3bdfc1556537	1643
AlexVC97	0:3bdfc1556537	1644	return res;
AlexVC97	0:3bdfc1556537	1645	}
AlexVC97	0:3bdfc1556537	1646	#endif /* !_FS_READONLY */
AlexVC97	0:3bdfc1556537	1647
AlexVC97	0:3bdfc1556537	1648
AlexVC97	0:3bdfc1556537	1649
AlexVC97	0:3bdfc1556537	1650
AlexVC97	0:3bdfc1556537	1651	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1652	/* Remove an object from the directory */
AlexVC97	0:3bdfc1556537	1653	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1654	#if !_FS_READONLY && !_FS_MINIMIZE
AlexVC97	0:3bdfc1556537	1655	static
AlexVC97	0:3bdfc1556537	1656	FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */
AlexVC97	0:3bdfc1556537	1657	FATFS_DIR* dp /* Directory object pointing the entry to be removed */
AlexVC97	0:3bdfc1556537	1658	)
AlexVC97	0:3bdfc1556537	1659	{
AlexVC97	0:3bdfc1556537	1660	FRESULT res;
AlexVC97	0:3bdfc1556537	1661	#if _USE_LFN /* LFN configuration */
AlexVC97	0:3bdfc1556537	1662	UINT i;
AlexVC97	0:3bdfc1556537	1663
AlexVC97	0:3bdfc1556537	1664	i = dp->index; /* SFN index */
AlexVC97	0:3bdfc1556537	1665	res = dir_sdi(dp, (dp->lfn_idx == 0xFFFF) ? i : dp->lfn_idx); /* Goto the SFN or top of the LFN entries */
AlexVC97	0:3bdfc1556537	1666	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	1667	do {
AlexVC97	0:3bdfc1556537	1668	res = move_window(dp->fs, dp->sect);
AlexVC97	0:3bdfc1556537	1669	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	1670	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
AlexVC97	0:3bdfc1556537	1671	*dp->dir = DDEM;
AlexVC97	0:3bdfc1556537	1672	dp->fs->wflag = 1;
AlexVC97	0:3bdfc1556537	1673	if (dp->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
AlexVC97	0:3bdfc1556537	1674	res = dir_next(dp, 0); /* Next entry */
AlexVC97	0:3bdfc1556537	1675	} while (res == FR_OK);
AlexVC97	0:3bdfc1556537	1676	if (res == FR_NO_FILE) res = FR_INT_ERR;
AlexVC97	0:3bdfc1556537	1677	}
AlexVC97	0:3bdfc1556537	1678
AlexVC97	0:3bdfc1556537	1679	#else /* Non LFN configuration */
AlexVC97	0:3bdfc1556537	1680	res = dir_sdi(dp, dp->index);
AlexVC97	0:3bdfc1556537	1681	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	1682	res = move_window(dp->fs, dp->sect);
AlexVC97	0:3bdfc1556537	1683	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	1684	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
AlexVC97	0:3bdfc1556537	1685	*dp->dir = DDEM;
AlexVC97	0:3bdfc1556537	1686	dp->fs->wflag = 1;
AlexVC97	0:3bdfc1556537	1687	}
AlexVC97	0:3bdfc1556537	1688	}
AlexVC97	0:3bdfc1556537	1689	#endif
AlexVC97	0:3bdfc1556537	1690
AlexVC97	0:3bdfc1556537	1691	return res;
AlexVC97	0:3bdfc1556537	1692	}
AlexVC97	0:3bdfc1556537	1693	#endif /* !_FS_READONLY */
AlexVC97	0:3bdfc1556537	1694
AlexVC97	0:3bdfc1556537	1695
AlexVC97	0:3bdfc1556537	1696
AlexVC97	0:3bdfc1556537	1697
AlexVC97	0:3bdfc1556537	1698	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1699	/* Get file information from directory entry */
AlexVC97	0:3bdfc1556537	1700	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1701	#if _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2
AlexVC97	0:3bdfc1556537	1702	static
AlexVC97	0:3bdfc1556537	1703	void get_fileinfo ( /* No return code */
AlexVC97	0:3bdfc1556537	1704	FATFS_DIR* dp, /* Pointer to the directory object */
AlexVC97	0:3bdfc1556537	1705	FILINFO* fno /* Pointer to the file information to be filled */
AlexVC97	0:3bdfc1556537	1706	)
AlexVC97	0:3bdfc1556537	1707	{
AlexVC97	0:3bdfc1556537	1708	UINT i;
AlexVC97	0:3bdfc1556537	1709	TCHAR *p, c;
AlexVC97	0:3bdfc1556537	1710	BYTE *dir;
AlexVC97	0:3bdfc1556537	1711	#if _USE_LFN
AlexVC97	0:3bdfc1556537	1712	WCHAR w, *lfn;
AlexVC97	0:3bdfc1556537	1713	#endif
AlexVC97	0:3bdfc1556537	1714
AlexVC97	0:3bdfc1556537	1715	p = fno->fname;
AlexVC97	0:3bdfc1556537	1716	if (dp->sect) { /* Get SFN */
AlexVC97	0:3bdfc1556537	1717	dir = dp->dir;
AlexVC97	0:3bdfc1556537	1718	i = 0;
AlexVC97	0:3bdfc1556537	1719	while (i < 11) { /* Copy name body and extension */
AlexVC97	0:3bdfc1556537	1720	c = (TCHAR)dir[i++];
AlexVC97	0:3bdfc1556537	1721	if (c == ' ') continue; /* Skip padding spaces */
AlexVC97	0:3bdfc1556537	1722	if (c == RDDEM) c = (TCHAR)DDEM; /* Restore replaced DDEM character */
AlexVC97	0:3bdfc1556537	1723	if (i == 9) p++ = '.'; / Insert a . if extension is exist */
AlexVC97	0:3bdfc1556537	1724	#if _USE_LFN
AlexVC97	0:3bdfc1556537	1725	if (IsUpper(c) && (dir[DIR_NTres] & (i >= 9 ? NS_EXT : NS_BODY)))
AlexVC97	0:3bdfc1556537	1726	c += 0x20; /* To lower */
AlexVC97	0:3bdfc1556537	1727	#if _LFN_UNICODE
AlexVC97	0:3bdfc1556537	1728	if (IsDBCS1(c) && i != 8 && i != 11 && IsDBCS2(dir[i]))
AlexVC97	0:3bdfc1556537	1729	c = c << 8 \| dir[i++];
AlexVC97	0:3bdfc1556537	1730	c = ff_convert(c, 1); /* OEM -> Unicode */
AlexVC97	0:3bdfc1556537	1731	if (!c) c = '?';
AlexVC97	0:3bdfc1556537	1732	#endif
AlexVC97	0:3bdfc1556537	1733	#endif
AlexVC97	0:3bdfc1556537	1734	*p++ = c;
AlexVC97	0:3bdfc1556537	1735	}
AlexVC97	0:3bdfc1556537	1736	fno->fattrib = dir[DIR_Attr]; /* Attribute */
AlexVC97	0:3bdfc1556537	1737	fno->fsize = LD_DWORD(dir + DIR_FileSize); /* Size */
AlexVC97	0:3bdfc1556537	1738	fno->fdate = LD_WORD(dir + DIR_WrtDate); /* Date */
AlexVC97	0:3bdfc1556537	1739	fno->ftime = LD_WORD(dir + DIR_WrtTime); /* Time */
AlexVC97	0:3bdfc1556537	1740	}
AlexVC97	0:3bdfc1556537	1741	p = 0; / Terminate SFN string by a \0 */
AlexVC97	0:3bdfc1556537	1742
AlexVC97	0:3bdfc1556537	1743	#if _USE_LFN
AlexVC97	0:3bdfc1556537	1744	if (fno->lfname) {
AlexVC97	0:3bdfc1556537	1745	i = 0; p = fno->lfname;
AlexVC97	0:3bdfc1556537	1746	if (dp->sect && fno->lfsize && dp->lfn_idx != 0xFFFF) { /* Get LFN if available */
AlexVC97	0:3bdfc1556537	1747	lfn = dp->lfn;
AlexVC97	0:3bdfc1556537	1748	while ((w = lfn++) != 0) { / Get an LFN character */
AlexVC97	0:3bdfc1556537	1749	#if !_LFN_UNICODE
AlexVC97	0:3bdfc1556537	1750	w = ff_convert(w, 0); /* Unicode -> OEM */
AlexVC97	0:3bdfc1556537	1751	if (!w) { i = 0; break; } /* No LFN if it could not be converted */
AlexVC97	0:3bdfc1556537	1752	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
AlexVC97	0:3bdfc1556537	1753	p[i++] = (TCHAR)(w >> 8);
AlexVC97	0:3bdfc1556537	1754	#endif
AlexVC97	0:3bdfc1556537	1755	if (i >= fno->lfsize - 1) { i = 0; break; } /* No LFN if buffer overflow */
AlexVC97	0:3bdfc1556537	1756	p[i++] = (TCHAR)w;
AlexVC97	0:3bdfc1556537	1757	}
AlexVC97	0:3bdfc1556537	1758	}
AlexVC97	0:3bdfc1556537	1759	p[i] = 0; /* Terminate LFN string by a \0 */
AlexVC97	0:3bdfc1556537	1760	}
AlexVC97	0:3bdfc1556537	1761	#endif
AlexVC97	0:3bdfc1556537	1762	}
AlexVC97	0:3bdfc1556537	1763	#endif /* _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2 */
AlexVC97	0:3bdfc1556537	1764
AlexVC97	0:3bdfc1556537	1765
AlexVC97	0:3bdfc1556537	1766
AlexVC97	0:3bdfc1556537	1767
AlexVC97	0:3bdfc1556537	1768	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1769	/* Pattern matching */
AlexVC97	0:3bdfc1556537	1770	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1771	#if _USE_FIND && _FS_MINIMIZE <= 1
AlexVC97	0:3bdfc1556537	1772	static
AlexVC97	0:3bdfc1556537	1773	WCHAR get_achar ( /* Get a character and advances ptr 1 or 2 */
AlexVC97	0:3bdfc1556537	1774	const TCHAR** ptr /* Pointer to pointer to the SBCS/DBCS/Unicode string */
AlexVC97	0:3bdfc1556537	1775	)
AlexVC97	0:3bdfc1556537	1776	{
AlexVC97	0:3bdfc1556537	1777	WCHAR chr;
AlexVC97	0:3bdfc1556537	1778
AlexVC97	0:3bdfc1556537	1779	#if !_LFN_UNICODE
AlexVC97	0:3bdfc1556537	1780	chr = (BYTE)(ptr)++; /* Get a byte */
AlexVC97	0:3bdfc1556537	1781	if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */
AlexVC97	0:3bdfc1556537	1782	if (IsDBCS1(chr) && IsDBCS2(*ptr)) / Get DBC 2nd byte if needed */
AlexVC97	0:3bdfc1556537	1783	chr = chr << 8 \| (BYTE)(ptr)++;
AlexVC97	0:3bdfc1556537	1784	#ifdef _EXCVT
AlexVC97	0:3bdfc1556537	1785	if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */
AlexVC97	0:3bdfc1556537	1786	#endif
AlexVC97	0:3bdfc1556537	1787	#else
AlexVC97	0:3bdfc1556537	1788	chr = ff_wtoupper((ptr)++); /* Get a word and to upper */
AlexVC97	0:3bdfc1556537	1789	#endif
AlexVC97	0:3bdfc1556537	1790	return chr;
AlexVC97	0:3bdfc1556537	1791	}
AlexVC97	0:3bdfc1556537	1792
AlexVC97	0:3bdfc1556537	1793
AlexVC97	0:3bdfc1556537	1794	static
AlexVC97	0:3bdfc1556537	1795	int pattern_matching ( /* 0:mismatched, 1:matched */
AlexVC97	0:3bdfc1556537	1796	const TCHAR* pat, /* Matching pattern */
AlexVC97	0:3bdfc1556537	1797	const TCHAR* nam, /* String to be tested */
AlexVC97	0:3bdfc1556537	1798	int skip, /* Number of pre-skip chars (number of ?s) */
AlexVC97	0:3bdfc1556537	1799	int inf /* Infinite search (* specified) */
AlexVC97	0:3bdfc1556537	1800	)
AlexVC97	0:3bdfc1556537	1801	{
AlexVC97	0:3bdfc1556537	1802	const TCHAR pp, np;
AlexVC97	0:3bdfc1556537	1803	WCHAR pc, nc;
AlexVC97	0:3bdfc1556537	1804	int nm, nx;
AlexVC97	0:3bdfc1556537	1805
AlexVC97	0:3bdfc1556537	1806
AlexVC97	0:3bdfc1556537	1807	while (skip--) { /* Pre-skip name chars */
AlexVC97	0:3bdfc1556537	1808	if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */
AlexVC97	0:3bdfc1556537	1809	}
AlexVC97	0:3bdfc1556537	1810	if (!pat && inf) return 1; / (short circuit) */
AlexVC97	0:3bdfc1556537	1811
AlexVC97	0:3bdfc1556537	1812	do {
AlexVC97	0:3bdfc1556537	1813	pp = pat; np = nam; /* Top of pattern and name to match */
AlexVC97	0:3bdfc1556537	1814	for (;;) {
AlexVC97	0:3bdfc1556537	1815	if (pp == '?' \|\| pp == '') { / Wildcard? */
AlexVC97	0:3bdfc1556537	1816	nm = nx = 0;
AlexVC97	0:3bdfc1556537	1817	do { /* Analyze the wildcard chars */
AlexVC97	0:3bdfc1556537	1818	if (*pp++ == '?') nm++; else nx = 1;
AlexVC97	0:3bdfc1556537	1819	} while (pp == '?' \|\| pp == '*');
AlexVC97	0:3bdfc1556537	1820	if (pattern_matching(pp, np, nm, nx)) return 1; /* Test new branch (recurs upto number of wildcard blocks in the pattern) */
AlexVC97	0:3bdfc1556537	1821	nc = np; break; / Branch mismatched */
AlexVC97	0:3bdfc1556537	1822	}
AlexVC97	0:3bdfc1556537	1823	pc = get_achar(&pp); /* Get a pattern char */
AlexVC97	0:3bdfc1556537	1824	nc = get_achar(&np); /* Get a name char */
AlexVC97	0:3bdfc1556537	1825	if (pc != nc) break; /* Branch mismatched? */
AlexVC97	0:3bdfc1556537	1826	if (!pc) return 1; /* Branch matched? (matched at end of both strings) */
AlexVC97	0:3bdfc1556537	1827	}
AlexVC97	0:3bdfc1556537	1828	get_achar(&nam); /* nam++ */
AlexVC97	0:3bdfc1556537	1829	} while (inf && nc); /* Retry until end of name if infinite search is specified */
AlexVC97	0:3bdfc1556537	1830
AlexVC97	0:3bdfc1556537	1831	return 0;
AlexVC97	0:3bdfc1556537	1832	}
AlexVC97	0:3bdfc1556537	1833	#endif /* _USE_FIND && _FS_MINIMIZE <= 1 */
AlexVC97	0:3bdfc1556537	1834
AlexVC97	0:3bdfc1556537	1835
AlexVC97	0:3bdfc1556537	1836
AlexVC97	0:3bdfc1556537	1837
AlexVC97	0:3bdfc1556537	1838	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1839	/* Pick a top segment and create the object name in directory form */
AlexVC97	0:3bdfc1556537	1840	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	1841
AlexVC97	0:3bdfc1556537	1842	static
AlexVC97	0:3bdfc1556537	1843	FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */
AlexVC97	0:3bdfc1556537	1844	FATFS_DIR* dp, /* Pointer to the directory object */
AlexVC97	0:3bdfc1556537	1845	const TCHAR** path /* Pointer to pointer to the segment in the path string */
AlexVC97	0:3bdfc1556537	1846	)
AlexVC97	0:3bdfc1556537	1847	{
AlexVC97	0:3bdfc1556537	1848	#if _USE_LFN /* LFN configuration */
AlexVC97	0:3bdfc1556537	1849	BYTE b, cf;
AlexVC97	0:3bdfc1556537	1850	WCHAR w, *lfn;
AlexVC97	0:3bdfc1556537	1851	UINT i, ni, si, di;
AlexVC97	0:3bdfc1556537	1852	const TCHAR *p;
AlexVC97	0:3bdfc1556537	1853
AlexVC97	0:3bdfc1556537	1854	/* Create LFN in Unicode */
AlexVC97	0:3bdfc1556537	1855	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
AlexVC97	0:3bdfc1556537	1856	lfn = dp->lfn;
AlexVC97	0:3bdfc1556537	1857	si = di = 0;
AlexVC97	0:3bdfc1556537	1858	for (;;) {
AlexVC97	0:3bdfc1556537	1859	w = p[si++]; /* Get a character */
AlexVC97	0:3bdfc1556537	1860	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
AlexVC97	0:3bdfc1556537	1861	if (di >= _MAX_LFN) /* Reject too long name */
AlexVC97	0:3bdfc1556537	1862	return FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	1863	#if !_LFN_UNICODE
AlexVC97	0:3bdfc1556537	1864	w &= 0xFF;
AlexVC97	0:3bdfc1556537	1865	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
AlexVC97	0:3bdfc1556537	1866	b = (BYTE)p[si++]; /* Get 2nd byte */
AlexVC97	0:3bdfc1556537	1867	w = (w << 8) + b; /* Create a DBC */
AlexVC97	0:3bdfc1556537	1868	if (!IsDBCS2(b))
AlexVC97	0:3bdfc1556537	1869	return FR_INVALID_NAME; /* Reject invalid sequence */
AlexVC97	0:3bdfc1556537	1870	}
AlexVC97	0:3bdfc1556537	1871	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
AlexVC97	0:3bdfc1556537	1872	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
AlexVC97	0:3bdfc1556537	1873	#endif
AlexVC97	0:3bdfc1556537	1874	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal characters for LFN */
AlexVC97	0:3bdfc1556537	1875	return FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	1876	lfn[di++] = w; /* Store the Unicode character */
AlexVC97	0:3bdfc1556537	1877	}
AlexVC97	0:3bdfc1556537	1878	path = &p[si]; / Return pointer to the next segment */
AlexVC97	0:3bdfc1556537	1879	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
AlexVC97	0:3bdfc1556537	1880	#if _FS_RPATH
AlexVC97	0:3bdfc1556537	1881	if ((di == 1 && lfn[di - 1] == '.') \|\|
AlexVC97	0:3bdfc1556537	1882	(di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot entry? */
AlexVC97	0:3bdfc1556537	1883	lfn[di] = 0;
AlexVC97	0:3bdfc1556537	1884	for (i = 0; i < 11; i++) /* Create dot name for SFN entry */
AlexVC97	0:3bdfc1556537	1885	dp->fn[i] = (i < di) ? '.' : ' ';
AlexVC97	0:3bdfc1556537	1886	dp->fn[i] = cf \| NS_DOT; /* This is a dot entry */
AlexVC97	0:3bdfc1556537	1887	return FR_OK;
AlexVC97	0:3bdfc1556537	1888	}
AlexVC97	0:3bdfc1556537	1889	#endif
AlexVC97	0:3bdfc1556537	1890	while (di) { /* Snip off trailing spaces and dots if exist */
AlexVC97	0:3bdfc1556537	1891	w = lfn[di - 1];
AlexVC97	0:3bdfc1556537	1892	if (w != ' ' && w != '.') break;
AlexVC97	0:3bdfc1556537	1893	di--;
AlexVC97	0:3bdfc1556537	1894	}
AlexVC97	0:3bdfc1556537	1895	if (!di) return FR_INVALID_NAME; /* Reject nul string */
AlexVC97	0:3bdfc1556537	1896	lfn[di] = 0; /* LFN is created */
AlexVC97	0:3bdfc1556537	1897
AlexVC97	0:3bdfc1556537	1898	/* Create SFN in directory form */
AlexVC97	0:3bdfc1556537	1899	mem_set(dp->fn, ' ', 11);
AlexVC97	0:3bdfc1556537	1900	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
AlexVC97	0:3bdfc1556537	1901	if (si) cf \|= NS_LOSS \| NS_LFN;
AlexVC97	0:3bdfc1556537	1902	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
AlexVC97	0:3bdfc1556537	1903
AlexVC97	0:3bdfc1556537	1904	b = i = 0; ni = 8;
AlexVC97	0:3bdfc1556537	1905	for (;;) {
AlexVC97	0:3bdfc1556537	1906	w = lfn[si++]; /* Get an LFN character */
AlexVC97	0:3bdfc1556537	1907	if (!w) break; /* Break on end of the LFN */
AlexVC97	0:3bdfc1556537	1908	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
AlexVC97	0:3bdfc1556537	1909	cf \|= NS_LOSS \| NS_LFN; continue;
AlexVC97	0:3bdfc1556537	1910	}
AlexVC97	0:3bdfc1556537	1911
AlexVC97	0:3bdfc1556537	1912	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
AlexVC97	0:3bdfc1556537	1913	if (ni == 11) { /* Long extension */
AlexVC97	0:3bdfc1556537	1914	cf \|= NS_LOSS \| NS_LFN; break;
AlexVC97	0:3bdfc1556537	1915	}
AlexVC97	0:3bdfc1556537	1916	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
AlexVC97	0:3bdfc1556537	1917	if (si > di) break; /* No extension */
AlexVC97	0:3bdfc1556537	1918	si = di; i = 8; ni = 11; /* Enter extension section */
AlexVC97	0:3bdfc1556537	1919	b <<= 2; continue;
AlexVC97	0:3bdfc1556537	1920	}
AlexVC97	0:3bdfc1556537	1921
AlexVC97	0:3bdfc1556537	1922	if (w >= 0x80) { /* Non ASCII character */
AlexVC97	0:3bdfc1556537	1923	#ifdef _EXCVT
AlexVC97	0:3bdfc1556537	1924	w = ff_convert(w, 0); /* Unicode -> OEM code */
AlexVC97	0:3bdfc1556537	1925	if (w) w = ExCvt[w - 0x80]; /* Convert extended character to upper (SBCS) */
AlexVC97	0:3bdfc1556537	1926	#else
AlexVC97	0:3bdfc1556537	1927	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
AlexVC97	0:3bdfc1556537	1928	#endif
AlexVC97	0:3bdfc1556537	1929	cf \|= NS_LFN; /* Force create LFN entry */
AlexVC97	0:3bdfc1556537	1930	}
AlexVC97	0:3bdfc1556537	1931
AlexVC97	0:3bdfc1556537	1932	if (_DF1S && w >= 0x100) { /* Is this DBC? (always false at SBCS cfg) */
AlexVC97	0:3bdfc1556537	1933	if (i >= ni - 1) {
AlexVC97	0:3bdfc1556537	1934	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
AlexVC97	0:3bdfc1556537	1935	}
AlexVC97	0:3bdfc1556537	1936	dp->fn[i++] = (BYTE)(w >> 8);
AlexVC97	0:3bdfc1556537	1937	} else { /* SBC */
AlexVC97	0:3bdfc1556537	1938	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal characters for SFN */
AlexVC97	0:3bdfc1556537	1939	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
AlexVC97	0:3bdfc1556537	1940	} else {
AlexVC97	0:3bdfc1556537	1941	if (IsUpper(w)) { /* ASCII large capital */
AlexVC97	0:3bdfc1556537	1942	b \|= 2;
AlexVC97	0:3bdfc1556537	1943	} else {
AlexVC97	0:3bdfc1556537	1944	if (IsLower(w)) { /* ASCII small capital */
AlexVC97	0:3bdfc1556537	1945	b \|= 1; w -= 0x20;
AlexVC97	0:3bdfc1556537	1946	}
AlexVC97	0:3bdfc1556537	1947	}
AlexVC97	0:3bdfc1556537	1948	}
AlexVC97	0:3bdfc1556537	1949	}
AlexVC97	0:3bdfc1556537	1950	dp->fn[i++] = (BYTE)w;
AlexVC97	0:3bdfc1556537	1951	}
AlexVC97	0:3bdfc1556537	1952
AlexVC97	0:3bdfc1556537	1953	if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */
AlexVC97	0:3bdfc1556537	1954
AlexVC97	0:3bdfc1556537	1955	if (ni == 8) b <<= 2;
AlexVC97	0:3bdfc1556537	1956	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
AlexVC97	0:3bdfc1556537	1957	cf \|= NS_LFN;
AlexVC97	0:3bdfc1556537	1958	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */
AlexVC97	0:3bdfc1556537	1959	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
AlexVC97	0:3bdfc1556537	1960	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
AlexVC97	0:3bdfc1556537	1961	}
AlexVC97	0:3bdfc1556537	1962
AlexVC97	0:3bdfc1556537	1963	dp->fn[NSFLAG] = cf; /* SFN is created */
AlexVC97	0:3bdfc1556537	1964
AlexVC97	0:3bdfc1556537	1965	return FR_OK;
AlexVC97	0:3bdfc1556537	1966
AlexVC97	0:3bdfc1556537	1967
AlexVC97	0:3bdfc1556537	1968	#else /* Non-LFN configuration */
AlexVC97	0:3bdfc1556537	1969	BYTE b, c, d, *sfn;
AlexVC97	0:3bdfc1556537	1970	UINT ni, si, i;
AlexVC97	0:3bdfc1556537	1971	const char *p;
AlexVC97	0:3bdfc1556537	1972
AlexVC97	0:3bdfc1556537	1973	/* Create file name in directory form */
AlexVC97	0:3bdfc1556537	1974	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Skip duplicated separator */
AlexVC97	0:3bdfc1556537	1975	sfn = dp->fn;
AlexVC97	0:3bdfc1556537	1976	mem_set(sfn, ' ', 11);
AlexVC97	0:3bdfc1556537	1977	si = i = b = 0; ni = 8;
AlexVC97	0:3bdfc1556537	1978	#if _FS_RPATH
AlexVC97	0:3bdfc1556537	1979	if (p[si] == '.') { /* Is this a dot entry? */
AlexVC97	0:3bdfc1556537	1980	for (;;) {
AlexVC97	0:3bdfc1556537	1981	c = (BYTE)p[si++];
AlexVC97	0:3bdfc1556537	1982	if (c != '.' \|\| si >= 3) break;
AlexVC97	0:3bdfc1556537	1983	sfn[i++] = c;
AlexVC97	0:3bdfc1556537	1984	}
AlexVC97	0:3bdfc1556537	1985	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	1986	path = &p[si]; / Return pointer to the next segment */
AlexVC97	0:3bdfc1556537	1987	sfn[NSFLAG] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
AlexVC97	0:3bdfc1556537	1988	return FR_OK;
AlexVC97	0:3bdfc1556537	1989	}
AlexVC97	0:3bdfc1556537	1990	#endif
AlexVC97	0:3bdfc1556537	1991	for (;;) {
AlexVC97	0:3bdfc1556537	1992	c = (BYTE)p[si++];
AlexVC97	0:3bdfc1556537	1993	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
AlexVC97	0:3bdfc1556537	1994	if (c == '.' \|\| i >= ni) {
AlexVC97	0:3bdfc1556537	1995	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	1996	i = 8; ni = 11;
AlexVC97	0:3bdfc1556537	1997	b <<= 2; continue;
AlexVC97	0:3bdfc1556537	1998	}
AlexVC97	0:3bdfc1556537	1999	if (c >= 0x80) { /* Extended character? */
AlexVC97	0:3bdfc1556537	2000	b \|= 3; /* Eliminate NT flag */
AlexVC97	0:3bdfc1556537	2001	#ifdef _EXCVT
AlexVC97	0:3bdfc1556537	2002	c = ExCvt[c - 0x80]; /* To upper extended characters (SBCS cfg) */
AlexVC97	0:3bdfc1556537	2003	#else
AlexVC97	0:3bdfc1556537	2004	#if !_DF1S
AlexVC97	0:3bdfc1556537	2005	return FR_INVALID_NAME; /* Reject extended characters (ASCII cfg) */
AlexVC97	0:3bdfc1556537	2006	#endif
AlexVC97	0:3bdfc1556537	2007	#endif
AlexVC97	0:3bdfc1556537	2008	}
AlexVC97	0:3bdfc1556537	2009	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false at SBCS cfg.) */
AlexVC97	0:3bdfc1556537	2010	d = (BYTE)p[si++]; /* Get 2nd byte */
AlexVC97	0:3bdfc1556537	2011	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
AlexVC97	0:3bdfc1556537	2012	return FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	2013	sfn[i++] = c;
AlexVC97	0:3bdfc1556537	2014	sfn[i++] = d;
AlexVC97	0:3bdfc1556537	2015	} else { /* SBC */
AlexVC97	0:3bdfc1556537	2016	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
AlexVC97	0:3bdfc1556537	2017	return FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	2018	if (IsUpper(c)) { /* ASCII large capital? */
AlexVC97	0:3bdfc1556537	2019	b \|= 2;
AlexVC97	0:3bdfc1556537	2020	} else {
AlexVC97	0:3bdfc1556537	2021	if (IsLower(c)) { /* ASCII small capital? */
AlexVC97	0:3bdfc1556537	2022	b \|= 1; c -= 0x20;
AlexVC97	0:3bdfc1556537	2023	}
AlexVC97	0:3bdfc1556537	2024	}
AlexVC97	0:3bdfc1556537	2025	sfn[i++] = c;
AlexVC97	0:3bdfc1556537	2026	}
AlexVC97	0:3bdfc1556537	2027	}
AlexVC97	0:3bdfc1556537	2028	path = &p[si]; / Return pointer to the next segment */
AlexVC97	0:3bdfc1556537	2029	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
AlexVC97	0:3bdfc1556537	2030
AlexVC97	0:3bdfc1556537	2031	if (!i) return FR_INVALID_NAME; /* Reject nul string */
AlexVC97	0:3bdfc1556537	2032	if (sfn[0] == DDEM) sfn[0] = RDDEM; /* When first character collides with DDEM, replace it with RDDEM */
AlexVC97	0:3bdfc1556537	2033
AlexVC97	0:3bdfc1556537	2034	if (ni == 8) b <<= 2;
AlexVC97	0:3bdfc1556537	2035	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
AlexVC97	0:3bdfc1556537	2036	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
AlexVC97	0:3bdfc1556537	2037
AlexVC97	0:3bdfc1556537	2038	sfn[NSFLAG] = c; /* Store NT flag, File name is created */
AlexVC97	0:3bdfc1556537	2039
AlexVC97	0:3bdfc1556537	2040	return FR_OK;
AlexVC97	0:3bdfc1556537	2041	#endif
AlexVC97	0:3bdfc1556537	2042	}
AlexVC97	0:3bdfc1556537	2043
AlexVC97	0:3bdfc1556537	2044
AlexVC97	0:3bdfc1556537	2045
AlexVC97	0:3bdfc1556537	2046
AlexVC97	0:3bdfc1556537	2047	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2048	/* Follow a file path */
AlexVC97	0:3bdfc1556537	2049	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2050
AlexVC97	0:3bdfc1556537	2051	static
AlexVC97	0:3bdfc1556537	2052	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
AlexVC97	0:3bdfc1556537	2053	FATFS_DIR* dp, /* Directory object to return last directory and found object */
AlexVC97	0:3bdfc1556537	2054	const TCHAR* path /* Full-path string to find a file or directory */
AlexVC97	0:3bdfc1556537	2055	)
AlexVC97	0:3bdfc1556537	2056	{
AlexVC97	0:3bdfc1556537	2057	FRESULT res;
AlexVC97	0:3bdfc1556537	2058	BYTE *dir, ns;
AlexVC97	0:3bdfc1556537	2059
AlexVC97	0:3bdfc1556537	2060
AlexVC97	0:3bdfc1556537	2061	#if _FS_RPATH
AlexVC97	0:3bdfc1556537	2062	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
AlexVC97	0:3bdfc1556537	2063	path++; dp->sclust = 0; /* Strip it and start from the root directory */
AlexVC97	0:3bdfc1556537	2064	} else { /* No heading separator */
AlexVC97	0:3bdfc1556537	2065	dp->sclust = dp->fs->cdir; /* Start from the current directory */
AlexVC97	0:3bdfc1556537	2066	}
AlexVC97	0:3bdfc1556537	2067	#else
AlexVC97	0:3bdfc1556537	2068	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
AlexVC97	0:3bdfc1556537	2069	path++;
AlexVC97	0:3bdfc1556537	2070	dp->sclust = 0; /* Always start from the root directory */
AlexVC97	0:3bdfc1556537	2071	#endif
AlexVC97	0:3bdfc1556537	2072
AlexVC97	0:3bdfc1556537	2073	if ((UINT)path < ' ') { / Null path name is the origin directory itself */
AlexVC97	0:3bdfc1556537	2074	res = dir_sdi(dp, 0);
AlexVC97	0:3bdfc1556537	2075	dp->dir = 0;
AlexVC97	0:3bdfc1556537	2076	} else { /* Follow path */
AlexVC97	0:3bdfc1556537	2077	for (;;) {
AlexVC97	0:3bdfc1556537	2078	res = create_name(dp, &path); /* Get a segment name of the path */
AlexVC97	0:3bdfc1556537	2079	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	2080	res = dir_find(dp); /* Find an object with the sagment name */
AlexVC97	0:3bdfc1556537	2081	ns = dp->fn[NSFLAG];
AlexVC97	0:3bdfc1556537	2082	if (res != FR_OK) { /* Failed to find the object */
AlexVC97	0:3bdfc1556537	2083	if (res == FR_NO_FILE) { /* Object is not found */
AlexVC97	0:3bdfc1556537	2084	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, */
AlexVC97	0:3bdfc1556537	2085	dp->sclust = 0; dp->dir = 0; /* it is the root directory and stay there */
AlexVC97	0:3bdfc1556537	2086	if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */
AlexVC97	0:3bdfc1556537	2087	res = FR_OK; /* Ended at the root directroy. Function completed. */
AlexVC97	0:3bdfc1556537	2088	} else { /* Could not find the object */
AlexVC97	0:3bdfc1556537	2089	if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */
AlexVC97	0:3bdfc1556537	2090	}
AlexVC97	0:3bdfc1556537	2091	}
AlexVC97	0:3bdfc1556537	2092	break;
AlexVC97	0:3bdfc1556537	2093	}
AlexVC97	0:3bdfc1556537	2094	if (ns & NS_LAST) break; /* Last segment matched. Function completed. */
AlexVC97	0:3bdfc1556537	2095	dir = dp->dir; /* Follow the sub-directory */
AlexVC97	0:3bdfc1556537	2096	if (!(dir[DIR_Attr] & AM_DIR)) { /* It is not a sub-directory and cannot follow */
AlexVC97	0:3bdfc1556537	2097	res = FR_NO_PATH; break;
AlexVC97	0:3bdfc1556537	2098	}
AlexVC97	0:3bdfc1556537	2099	dp->sclust = ld_clust(dp->fs, dir);
AlexVC97	0:3bdfc1556537	2100	}
AlexVC97	0:3bdfc1556537	2101	}
AlexVC97	0:3bdfc1556537	2102
AlexVC97	0:3bdfc1556537	2103	return res;
AlexVC97	0:3bdfc1556537	2104	}
AlexVC97	0:3bdfc1556537	2105
AlexVC97	0:3bdfc1556537	2106
AlexVC97	0:3bdfc1556537	2107
AlexVC97	0:3bdfc1556537	2108
AlexVC97	0:3bdfc1556537	2109	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2110	/* Get logical drive number from path name */
AlexVC97	0:3bdfc1556537	2111	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2112
AlexVC97	0:3bdfc1556537	2113	static
AlexVC97	0:3bdfc1556537	2114	int get_ldnumber ( /* Returns logical drive number (-1:invalid drive) */
AlexVC97	0:3bdfc1556537	2115	const TCHAR** path /* Pointer to pointer to the path name */
AlexVC97	0:3bdfc1556537	2116	)
AlexVC97	0:3bdfc1556537	2117	{
AlexVC97	0:3bdfc1556537	2118	const TCHAR tp, tt;
AlexVC97	0:3bdfc1556537	2119	UINT i;
AlexVC97	0:3bdfc1556537	2120	int vol = -1;
AlexVC97	0:3bdfc1556537	2121	#if _STR_VOLUME_ID /* Find string drive id */
AlexVC97	0:3bdfc1556537	2122	static const char* const str[] = {_VOLUME_STRS};
AlexVC97	0:3bdfc1556537	2123	const char *sp;
AlexVC97	0:3bdfc1556537	2124	char c;
AlexVC97	0:3bdfc1556537	2125	TCHAR tc;
AlexVC97	0:3bdfc1556537	2126	#endif
AlexVC97	0:3bdfc1556537	2127
AlexVC97	0:3bdfc1556537	2128
AlexVC97	0:3bdfc1556537	2129	if (path) { / If the pointer is not a null */
AlexVC97	0:3bdfc1556537	2130	for (tt = path; (UINT)tt >= (_USE_LFN ? ' ' : '!') && tt != ':'; tt++) ; / Find ':' in the path */
AlexVC97	0:3bdfc1556537	2131	if (tt == ':') { / If a ':' is exist in the path name */
AlexVC97	0:3bdfc1556537	2132	tp = *path;
AlexVC97	0:3bdfc1556537	2133	i = *tp++ - '0';
AlexVC97	0:3bdfc1556537	2134	if (i < 10 && tp == tt) { /* Is there a numeric drive id? */
AlexVC97	0:3bdfc1556537	2135	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
AlexVC97	0:3bdfc1556537	2136	vol = (int)i;
AlexVC97	0:3bdfc1556537	2137	*path = ++tt;
AlexVC97	0:3bdfc1556537	2138	}
AlexVC97	0:3bdfc1556537	2139	}
AlexVC97	0:3bdfc1556537	2140	#if _STR_VOLUME_ID
AlexVC97	0:3bdfc1556537	2141	else { /* No numeric drive number, find string drive id */
AlexVC97	0:3bdfc1556537	2142	i = 0; tt++;
AlexVC97	0:3bdfc1556537	2143	do {
AlexVC97	0:3bdfc1556537	2144	sp = str[i]; tp = *path;
AlexVC97	0:3bdfc1556537	2145	do { /* Compare a string drive id with path name */
AlexVC97	0:3bdfc1556537	2146	c = sp++; tc = tp++;
AlexVC97	0:3bdfc1556537	2147	if (IsLower(tc)) tc -= 0x20;
AlexVC97	0:3bdfc1556537	2148	} while (c && (TCHAR)c == tc);
AlexVC97	0:3bdfc1556537	2149	} while ((c \|\| tp != tt) && ++i < _VOLUMES); /* Repeat for each id until pattern match */
AlexVC97	0:3bdfc1556537	2150	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
AlexVC97	0:3bdfc1556537	2151	vol = (int)i;
AlexVC97	0:3bdfc1556537	2152	*path = tt;
AlexVC97	0:3bdfc1556537	2153	}
AlexVC97	0:3bdfc1556537	2154	}
AlexVC97	0:3bdfc1556537	2155	#endif
AlexVC97	0:3bdfc1556537	2156	return vol;
AlexVC97	0:3bdfc1556537	2157	}
AlexVC97	0:3bdfc1556537	2158	#if _FS_RPATH && _VOLUMES >= 2
AlexVC97	0:3bdfc1556537	2159	vol = CurrVol; /* Current drive */
AlexVC97	0:3bdfc1556537	2160	#else
AlexVC97	0:3bdfc1556537	2161	vol = 0; /* Drive 0 */
AlexVC97	0:3bdfc1556537	2162	#endif
AlexVC97	0:3bdfc1556537	2163	}
AlexVC97	0:3bdfc1556537	2164	return vol;
AlexVC97	0:3bdfc1556537	2165	}
AlexVC97	0:3bdfc1556537	2166
AlexVC97	0:3bdfc1556537	2167
AlexVC97	0:3bdfc1556537	2168
AlexVC97	0:3bdfc1556537	2169
AlexVC97	0:3bdfc1556537	2170	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2171	/* Load a sector and check if it is an FAT boot sector */
AlexVC97	0:3bdfc1556537	2172	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2173
AlexVC97	0:3bdfc1556537	2174	static
AlexVC97	0:3bdfc1556537	2175	BYTE check_fs ( /* 0:Valid FAT-BS, 1:Valid BS but not FAT, 2:Not a BS, 3:Disk error */
AlexVC97	0:3bdfc1556537	2176	FATFS* fs, /* File system object */
AlexVC97	0:3bdfc1556537	2177	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
AlexVC97	0:3bdfc1556537	2178	)
AlexVC97	0:3bdfc1556537	2179	{
AlexVC97	0:3bdfc1556537	2180	fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */
AlexVC97	0:3bdfc1556537	2181	if (move_window(fs, sect) != FR_OK) /* Load boot record */
AlexVC97	0:3bdfc1556537	2182	return 3;
AlexVC97	0:3bdfc1556537	2183
AlexVC97	0:3bdfc1556537	2184	if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check boot record signature (always placed at offset 510 even if the sector size is >512) */
AlexVC97	0:3bdfc1556537	2185	return 2;
AlexVC97	0:3bdfc1556537	2186
AlexVC97	0:3bdfc1556537	2187	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
AlexVC97	0:3bdfc1556537	2188	return 0;
AlexVC97	0:3bdfc1556537	2189	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
AlexVC97	0:3bdfc1556537	2190	return 0;
AlexVC97	0:3bdfc1556537	2191
AlexVC97	0:3bdfc1556537	2192	return 1;
AlexVC97	0:3bdfc1556537	2193	}
AlexVC97	0:3bdfc1556537	2194
AlexVC97	0:3bdfc1556537	2195
AlexVC97	0:3bdfc1556537	2196
AlexVC97	0:3bdfc1556537	2197
AlexVC97	0:3bdfc1556537	2198	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2199	/* Find logical drive and check if the volume is mounted */
AlexVC97	0:3bdfc1556537	2200	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2201
AlexVC97	0:3bdfc1556537	2202	static
AlexVC97	0:3bdfc1556537	2203	FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */
AlexVC97	0:3bdfc1556537	2204	FATFS** rfs, /* Pointer to pointer to the found file system object */
AlexVC97	0:3bdfc1556537	2205	const TCHAR** path, /* Pointer to pointer to the path name (drive number) */
AlexVC97	0:3bdfc1556537	2206	BYTE wmode /* !=0: Check write protection for write access */
AlexVC97	0:3bdfc1556537	2207	)
AlexVC97	0:3bdfc1556537	2208	{
AlexVC97	0:3bdfc1556537	2209	BYTE fmt, *pt;
AlexVC97	0:3bdfc1556537	2210	int vol;
AlexVC97	0:3bdfc1556537	2211	DSTATUS stat;
AlexVC97	0:3bdfc1556537	2212	DWORD bsect, fasize, tsect, sysect, nclst, szbfat, br[4];
AlexVC97	0:3bdfc1556537	2213	WORD nrsv;
AlexVC97	0:3bdfc1556537	2214	FATFS *fs;
AlexVC97	0:3bdfc1556537	2215	UINT i;
AlexVC97	0:3bdfc1556537	2216
AlexVC97	0:3bdfc1556537	2217
AlexVC97	0:3bdfc1556537	2218	/* Get logical drive number from the path name */
AlexVC97	0:3bdfc1556537	2219	*rfs = 0;
AlexVC97	0:3bdfc1556537	2220	vol = get_ldnumber(path);
AlexVC97	0:3bdfc1556537	2221	if (vol < 0) return FR_INVALID_DRIVE;
AlexVC97	0:3bdfc1556537	2222
AlexVC97	0:3bdfc1556537	2223	/* Check if the file system object is valid or not */
AlexVC97	0:3bdfc1556537	2224	fs = FatFs[vol]; /* Get pointer to the file system object */
AlexVC97	0:3bdfc1556537	2225	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
AlexVC97	0:3bdfc1556537	2226
AlexVC97	0:3bdfc1556537	2227	ENTER_FF(fs); /* Lock the volume */
AlexVC97	0:3bdfc1556537	2228	rfs = fs; / Return pointer to the file system object */
AlexVC97	0:3bdfc1556537	2229
AlexVC97	0:3bdfc1556537	2230	if (fs->fs_type) { /* If the volume has been mounted */
AlexVC97	0:3bdfc1556537	2231	stat = disk_status(fs->drv);
AlexVC97	0:3bdfc1556537	2232	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */
AlexVC97	0:3bdfc1556537	2233	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
AlexVC97	0:3bdfc1556537	2234	return FR_WRITE_PROTECTED;
AlexVC97	0:3bdfc1556537	2235	return FR_OK; /* The file system object is valid */
AlexVC97	0:3bdfc1556537	2236	}
AlexVC97	0:3bdfc1556537	2237	}
AlexVC97	0:3bdfc1556537	2238
AlexVC97	0:3bdfc1556537	2239	/* The file system object is not valid. */
AlexVC97	0:3bdfc1556537	2240	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
AlexVC97	0:3bdfc1556537	2241
AlexVC97	0:3bdfc1556537	2242	fs->fs_type = 0; /* Clear the file system object */
AlexVC97	0:3bdfc1556537	2243	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
AlexVC97	0:3bdfc1556537	2244	stat = disk_initialize(fs->drv); /* Initialize the physical drive */
AlexVC97	0:3bdfc1556537	2245	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
AlexVC97	0:3bdfc1556537	2246	return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
AlexVC97	0:3bdfc1556537	2247	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
AlexVC97	0:3bdfc1556537	2248	return FR_WRITE_PROTECTED;
AlexVC97	0:3bdfc1556537	2249	#if _MAX_SS != _MIN_SS /* Get sector size (multiple sector size cfg only) */
AlexVC97	0:3bdfc1556537	2250	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
AlexVC97	0:3bdfc1556537	2251	\|\| SS(fs) < _MIN_SS \|\| SS(fs) > _MAX_SS) return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	2252	#endif
AlexVC97	0:3bdfc1556537	2253	/* Find an FAT partition on the drive. Supports only generic partitioning, FDISK and SFD. */
AlexVC97	0:3bdfc1556537	2254	bsect = 0;
AlexVC97	0:3bdfc1556537	2255	fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT boot sector as SFD */
AlexVC97	0:3bdfc1556537	2256	if (fmt == 1 \|\| (!fmt && (LD2PT(vol)))) { /* Not an FAT boot sector or forced partition number */
AlexVC97	0:3bdfc1556537	2257	for (i = 0; i < 4; i++) { /* Get partition offset */
AlexVC97	0:3bdfc1556537	2258	pt = fs->win + MBR_Table + i * SZ_PTE;
AlexVC97	0:3bdfc1556537	2259	br[i] = pt[4] ? LD_DWORD(&pt[8]) : 0;
AlexVC97	0:3bdfc1556537	2260	}
AlexVC97	0:3bdfc1556537	2261	i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */
AlexVC97	0:3bdfc1556537	2262	if (i) i--;
AlexVC97	0:3bdfc1556537	2263	do { /* Find an FAT volume */
AlexVC97	0:3bdfc1556537	2264	bsect = br[i];
AlexVC97	0:3bdfc1556537	2265	fmt = bsect ? check_fs(fs, bsect) : 2; /* Check the partition */
AlexVC97	0:3bdfc1556537	2266	} while (!LD2PT(vol) && fmt && ++i < 4);
AlexVC97	0:3bdfc1556537	2267	}
AlexVC97	0:3bdfc1556537	2268	if (fmt == 3) return FR_DISK_ERR; /* An error occured in the disk I/O layer */
AlexVC97	0:3bdfc1556537	2269	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
AlexVC97	0:3bdfc1556537	2270
AlexVC97	0:3bdfc1556537	2271	/* An FAT volume is found. Following code initializes the file system object */
AlexVC97	0:3bdfc1556537	2272
AlexVC97	0:3bdfc1556537	2273	if (LD_WORD(fs->win + BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
AlexVC97	0:3bdfc1556537	2274	return FR_NO_FILESYSTEM;
AlexVC97	0:3bdfc1556537	2275
AlexVC97	0:3bdfc1556537	2276	fasize = LD_WORD(fs->win + BPB_FATSz16); /* Number of sectors per FAT */
AlexVC97	0:3bdfc1556537	2277	if (!fasize) fasize = LD_DWORD(fs->win + BPB_FATSz32);
AlexVC97	0:3bdfc1556537	2278	fs->fsize = fasize;
AlexVC97	0:3bdfc1556537	2279
AlexVC97	0:3bdfc1556537	2280	fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */
AlexVC97	0:3bdfc1556537	2281	if (fs->n_fats != 1 && fs->n_fats != 2) /* (Must be 1 or 2) */
AlexVC97	0:3bdfc1556537	2282	return FR_NO_FILESYSTEM;
AlexVC97	0:3bdfc1556537	2283	fasize = fs->n_fats; / Number of sectors for FAT area */
AlexVC97	0:3bdfc1556537	2284
AlexVC97	0:3bdfc1556537	2285	fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
AlexVC97	0:3bdfc1556537	2286	if (!fs->csize \|\| (fs->csize & (fs->csize - 1))) /* (Must be power of 2) */
AlexVC97	0:3bdfc1556537	2287	return FR_NO_FILESYSTEM;
AlexVC97	0:3bdfc1556537	2288
AlexVC97	0:3bdfc1556537	2289	fs->n_rootdir = LD_WORD(fs->win + BPB_RootEntCnt); /* Number of root directory entries */
AlexVC97	0:3bdfc1556537	2290	if (fs->n_rootdir % (SS(fs) / SZ_DIRE)) /* (Must be sector aligned) */
AlexVC97	0:3bdfc1556537	2291	return FR_NO_FILESYSTEM;
AlexVC97	0:3bdfc1556537	2292
AlexVC97	0:3bdfc1556537	2293	tsect = LD_WORD(fs->win + BPB_TotSec16); /* Number of sectors on the volume */
AlexVC97	0:3bdfc1556537	2294	if (!tsect) tsect = LD_DWORD(fs->win + BPB_TotSec32);
AlexVC97	0:3bdfc1556537	2295
AlexVC97	0:3bdfc1556537	2296	nrsv = LD_WORD(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */
AlexVC97	0:3bdfc1556537	2297	if (!nrsv) return FR_NO_FILESYSTEM; /* (Must not be 0) */
AlexVC97	0:3bdfc1556537	2298
AlexVC97	0:3bdfc1556537	2299	/* Determine the FAT sub type */
AlexVC97	0:3bdfc1556537	2300	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIRE); /* RSV + FAT + FATFS_DIR */
AlexVC97	0:3bdfc1556537	2301	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
AlexVC97	0:3bdfc1556537	2302	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
AlexVC97	0:3bdfc1556537	2303	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
AlexVC97	0:3bdfc1556537	2304	fmt = FS_FAT12;
AlexVC97	0:3bdfc1556537	2305	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
AlexVC97	0:3bdfc1556537	2306	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
AlexVC97	0:3bdfc1556537	2307
AlexVC97	0:3bdfc1556537	2308	/* Boundaries and Limits */
AlexVC97	0:3bdfc1556537	2309	fs->n_fatent = nclst + 2; /* Number of FAT entries */
AlexVC97	0:3bdfc1556537	2310	fs->volbase = bsect; /* Volume start sector */
AlexVC97	0:3bdfc1556537	2311	fs->fatbase = bsect + nrsv; /* FAT start sector */
AlexVC97	0:3bdfc1556537	2312	fs->database = bsect + sysect; /* Data start sector */
AlexVC97	0:3bdfc1556537	2313	if (fmt == FS_FAT32) {
AlexVC97	0:3bdfc1556537	2314	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
AlexVC97	0:3bdfc1556537	2315	fs->dirbase = LD_DWORD(fs->win + BPB_RootClus); /* Root directory start cluster */
AlexVC97	0:3bdfc1556537	2316	szbfat = fs->n_fatent * 4; /* (Needed FAT size) */
AlexVC97	0:3bdfc1556537	2317	} else {
AlexVC97	0:3bdfc1556537	2318	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
AlexVC97	0:3bdfc1556537	2319	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
AlexVC97	0:3bdfc1556537	2320	szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */
AlexVC97	0:3bdfc1556537	2321	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
AlexVC97	0:3bdfc1556537	2322	}
AlexVC97	0:3bdfc1556537	2323	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than the size needed) */
AlexVC97	0:3bdfc1556537	2324	return FR_NO_FILESYSTEM;
AlexVC97	0:3bdfc1556537	2325
AlexVC97	0:3bdfc1556537	2326	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	2327	/* Initialize cluster allocation information */
AlexVC97	0:3bdfc1556537	2328	fs->last_clust = fs->free_clust = 0xFFFFFFFF;
AlexVC97	0:3bdfc1556537	2329
AlexVC97	0:3bdfc1556537	2330	/* Get fsinfo if available */
AlexVC97	0:3bdfc1556537	2331	fs->fsi_flag = 0x80;
AlexVC97	0:3bdfc1556537	2332	#if (_FS_NOFSINFO & 3) != 3
AlexVC97	0:3bdfc1556537	2333	if (fmt == FS_FAT32 /* Enable FSINFO only if FAT32 and BPB_FSInfo == 1 */
AlexVC97	0:3bdfc1556537	2334	&& LD_WORD(fs->win + BPB_FSInfo) == 1
AlexVC97	0:3bdfc1556537	2335	&& move_window(fs, bsect + 1) == FR_OK)
AlexVC97	0:3bdfc1556537	2336	{
AlexVC97	0:3bdfc1556537	2337	fs->fsi_flag = 0;
AlexVC97	0:3bdfc1556537	2338	if (LD_WORD(fs->win + BS_55AA) == 0xAA55 /* Load FSINFO data if available */
AlexVC97	0:3bdfc1556537	2339	&& LD_DWORD(fs->win + FSI_LeadSig) == 0x41615252
AlexVC97	0:3bdfc1556537	2340	&& LD_DWORD(fs->win + FSI_StrucSig) == 0x61417272)
AlexVC97	0:3bdfc1556537	2341	{
AlexVC97	0:3bdfc1556537	2342	#if (_FS_NOFSINFO & 1) == 0
AlexVC97	0:3bdfc1556537	2343	fs->free_clust = LD_DWORD(fs->win + FSI_Free_Count);
AlexVC97	0:3bdfc1556537	2344	#endif
AlexVC97	0:3bdfc1556537	2345	#if (_FS_NOFSINFO & 2) == 0
AlexVC97	0:3bdfc1556537	2346	fs->last_clust = LD_DWORD(fs->win + FSI_Nxt_Free);
AlexVC97	0:3bdfc1556537	2347	#endif
AlexVC97	0:3bdfc1556537	2348	}
AlexVC97	0:3bdfc1556537	2349	}
AlexVC97	0:3bdfc1556537	2350	#endif
AlexVC97	0:3bdfc1556537	2351	#endif
AlexVC97	0:3bdfc1556537	2352	fs->fs_type = fmt; /* FAT sub-type */
AlexVC97	0:3bdfc1556537	2353	fs->id = ++Fsid; /* File system mount ID */
AlexVC97	0:3bdfc1556537	2354	#if _FS_RPATH
AlexVC97	0:3bdfc1556537	2355	fs->cdir = 0; /* Set current directory to root */
AlexVC97	0:3bdfc1556537	2356	#endif
AlexVC97	0:3bdfc1556537	2357	#if _FS_LOCK /* Clear file lock semaphores */
AlexVC97	0:3bdfc1556537	2358	clear_lock(fs);
AlexVC97	0:3bdfc1556537	2359	#endif
AlexVC97	0:3bdfc1556537	2360
AlexVC97	0:3bdfc1556537	2361	return FR_OK;
AlexVC97	0:3bdfc1556537	2362	}
AlexVC97	0:3bdfc1556537	2363
AlexVC97	0:3bdfc1556537	2364
AlexVC97	0:3bdfc1556537	2365
AlexVC97	0:3bdfc1556537	2366
AlexVC97	0:3bdfc1556537	2367	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2368	/* Check if the file/directory object is valid or not */
AlexVC97	0:3bdfc1556537	2369	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2370
AlexVC97	0:3bdfc1556537	2371	static
AlexVC97	0:3bdfc1556537	2372	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
AlexVC97	0:3bdfc1556537	2373	void* obj /* Pointer to the object FIL/FATFS_DIR to check validity */
AlexVC97	0:3bdfc1556537	2374	)
AlexVC97	0:3bdfc1556537	2375	{
AlexVC97	0:3bdfc1556537	2376	FIL fil = (FIL)obj; /* Assuming offset of .fs and .id in the FIL/FATFS_DIR structure is identical */
AlexVC97	0:3bdfc1556537	2377
AlexVC97	0:3bdfc1556537	2378
AlexVC97	0:3bdfc1556537	2379	if (!fil \|\| !fil->fs \|\| !fil->fs->fs_type \|\| fil->fs->id != fil->id \|\| (disk_status(fil->fs->drv) & STA_NOINIT))
AlexVC97	0:3bdfc1556537	2380	return FR_INVALID_OBJECT;
AlexVC97	0:3bdfc1556537	2381
AlexVC97	0:3bdfc1556537	2382	ENTER_FF(fil->fs); /* Lock file system */
AlexVC97	0:3bdfc1556537	2383
AlexVC97	0:3bdfc1556537	2384	return FR_OK;
AlexVC97	0:3bdfc1556537	2385	}
AlexVC97	0:3bdfc1556537	2386
AlexVC97	0:3bdfc1556537	2387
AlexVC97	0:3bdfc1556537	2388
AlexVC97	0:3bdfc1556537	2389
AlexVC97	0:3bdfc1556537	2390	/*--------------------------------------------------------------------------
AlexVC97	0:3bdfc1556537	2391
AlexVC97	0:3bdfc1556537	2392	Public Functions
AlexVC97	0:3bdfc1556537	2393
AlexVC97	0:3bdfc1556537	2394	---------------------------------------------------------------------------*/
AlexVC97	0:3bdfc1556537	2395
AlexVC97	0:3bdfc1556537	2396
AlexVC97	0:3bdfc1556537	2397
AlexVC97	0:3bdfc1556537	2398	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2399	/* Mount/Unmount a Logical Drive */
AlexVC97	0:3bdfc1556537	2400	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2401
AlexVC97	0:3bdfc1556537	2402	FRESULT f_mount (
AlexVC97	0:3bdfc1556537	2403	FATFS* fs, /* Pointer to the file system object (NULL:unmount)*/
AlexVC97	0:3bdfc1556537	2404	const TCHAR* path, /* Logical drive number to be mounted/unmounted */
AlexVC97	0:3bdfc1556537	2405	BYTE opt /* 0:Do not mount (delayed mount), 1:Mount immediately */
AlexVC97	0:3bdfc1556537	2406	)
AlexVC97	0:3bdfc1556537	2407	{
AlexVC97	0:3bdfc1556537	2408	FATFS *cfs;
AlexVC97	0:3bdfc1556537	2409	int vol;
AlexVC97	0:3bdfc1556537	2410	FRESULT res;
AlexVC97	0:3bdfc1556537	2411	const TCHAR *rp = path;
AlexVC97	0:3bdfc1556537	2412
AlexVC97	0:3bdfc1556537	2413
AlexVC97	0:3bdfc1556537	2414	vol = get_ldnumber(&rp);
AlexVC97	0:3bdfc1556537	2415	if (vol < 0) return FR_INVALID_DRIVE;
AlexVC97	0:3bdfc1556537	2416	cfs = FatFs[vol]; /* Pointer to fs object */
AlexVC97	0:3bdfc1556537	2417
AlexVC97	0:3bdfc1556537	2418	if (cfs) {
AlexVC97	0:3bdfc1556537	2419	#if _FS_LOCK
AlexVC97	0:3bdfc1556537	2420	clear_lock(cfs);
AlexVC97	0:3bdfc1556537	2421	#endif
AlexVC97	0:3bdfc1556537	2422	#if _FS_REENTRANT /* Discard sync object of the current volume */
AlexVC97	0:3bdfc1556537	2423	if (!ff_del_syncobj(cfs->sobj)) return FR_INT_ERR;
AlexVC97	0:3bdfc1556537	2424	#endif
AlexVC97	0:3bdfc1556537	2425	cfs->fs_type = 0; /* Clear old fs object */
AlexVC97	0:3bdfc1556537	2426	}
AlexVC97	0:3bdfc1556537	2427
AlexVC97	0:3bdfc1556537	2428	if (fs) {
AlexVC97	0:3bdfc1556537	2429	fs->fs_type = 0; /* Clear new fs object */
AlexVC97	0:3bdfc1556537	2430	#if _FS_REENTRANT /* Create sync object for the new volume */
AlexVC97	0:3bdfc1556537	2431	if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR;
AlexVC97	0:3bdfc1556537	2432	#endif
AlexVC97	0:3bdfc1556537	2433	}
AlexVC97	0:3bdfc1556537	2434	FatFs[vol] = fs; /* Register new fs object */
AlexVC97	0:3bdfc1556537	2435
AlexVC97	0:3bdfc1556537	2436	if (!fs \|\| opt != 1) return FR_OK; /* Do not mount now, it will be mounted later */
AlexVC97	0:3bdfc1556537	2437
AlexVC97	0:3bdfc1556537	2438	res = find_volume(&fs, &path, 0); /* Force mounted the volume */
AlexVC97	0:3bdfc1556537	2439	LEAVE_FF(fs, res);
AlexVC97	0:3bdfc1556537	2440	}
AlexVC97	0:3bdfc1556537	2441
AlexVC97	0:3bdfc1556537	2442
AlexVC97	0:3bdfc1556537	2443
AlexVC97	0:3bdfc1556537	2444
AlexVC97	0:3bdfc1556537	2445	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2446	/* Open or Create a File */
AlexVC97	0:3bdfc1556537	2447	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2448
AlexVC97	0:3bdfc1556537	2449	FRESULT f_open (
AlexVC97	0:3bdfc1556537	2450	FIL* fp, /* Pointer to the blank file object */
AlexVC97	0:3bdfc1556537	2451	const TCHAR* path, /* Pointer to the file name */
AlexVC97	0:3bdfc1556537	2452	BYTE mode /* Access mode and file open mode flags */
AlexVC97	0:3bdfc1556537	2453	)
AlexVC97	0:3bdfc1556537	2454	{
AlexVC97	0:3bdfc1556537	2455	FRESULT res;
AlexVC97	0:3bdfc1556537	2456	FATFS_DIR dj;
AlexVC97	0:3bdfc1556537	2457	BYTE *dir;
AlexVC97	0:3bdfc1556537	2458	DEFINE_NAMEBUF;
AlexVC97	0:3bdfc1556537	2459	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	2460	DWORD dw, cl;
AlexVC97	0:3bdfc1556537	2461	#endif
AlexVC97	0:3bdfc1556537	2462
AlexVC97	0:3bdfc1556537	2463
AlexVC97	0:3bdfc1556537	2464	if (!fp) return FR_INVALID_OBJECT;
AlexVC97	0:3bdfc1556537	2465	fp->fs = 0; /* Clear file object */
AlexVC97	0:3bdfc1556537	2466
AlexVC97	0:3bdfc1556537	2467	/* Get logical drive number */
AlexVC97	0:3bdfc1556537	2468	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	2469	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
AlexVC97	0:3bdfc1556537	2470	res = find_volume(&dj.fs, &path, (BYTE)(mode & ~FA_READ));
AlexVC97	0:3bdfc1556537	2471	#else
AlexVC97	0:3bdfc1556537	2472	mode &= FA_READ;
AlexVC97	0:3bdfc1556537	2473	res = find_volume(&dj.fs, &path, 0);
AlexVC97	0:3bdfc1556537	2474	#endif
AlexVC97	0:3bdfc1556537	2475	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	2476	INIT_BUF(dj);
AlexVC97	0:3bdfc1556537	2477	res = follow_path(&dj, path); /* Follow the file path */
AlexVC97	0:3bdfc1556537	2478	dir = dj.dir;
AlexVC97	0:3bdfc1556537	2479	#if !_FS_READONLY /* R/W configuration */
AlexVC97	0:3bdfc1556537	2480	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	2481	if (!dir) /* Default directory itself */
AlexVC97	0:3bdfc1556537	2482	res = FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	2483	#if _FS_LOCK
AlexVC97	0:3bdfc1556537	2484	else
AlexVC97	0:3bdfc1556537	2485	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
AlexVC97	0:3bdfc1556537	2486	#endif
AlexVC97	0:3bdfc1556537	2487	}
AlexVC97	0:3bdfc1556537	2488	/* Create or Open a file */
AlexVC97	0:3bdfc1556537	2489	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
AlexVC97	0:3bdfc1556537	2490	if (res != FR_OK) { /* No file, create new */
AlexVC97	0:3bdfc1556537	2491	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
AlexVC97	0:3bdfc1556537	2492	#if _FS_LOCK
AlexVC97	0:3bdfc1556537	2493	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
AlexVC97	0:3bdfc1556537	2494	#else
AlexVC97	0:3bdfc1556537	2495	res = dir_register(&dj);
AlexVC97	0:3bdfc1556537	2496	#endif
AlexVC97	0:3bdfc1556537	2497	mode \|= FA_CREATE_ALWAYS; /* File is created */
AlexVC97	0:3bdfc1556537	2498	dir = dj.dir; /* New entry */
AlexVC97	0:3bdfc1556537	2499	}
AlexVC97	0:3bdfc1556537	2500	else { /* Any object is already existing */
AlexVC97	0:3bdfc1556537	2501	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or FATFS_DIR) */
AlexVC97	0:3bdfc1556537	2502	res = FR_DENIED;
AlexVC97	0:3bdfc1556537	2503	} else {
AlexVC97	0:3bdfc1556537	2504	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
AlexVC97	0:3bdfc1556537	2505	res = FR_EXIST;
AlexVC97	0:3bdfc1556537	2506	}
AlexVC97	0:3bdfc1556537	2507	}
AlexVC97	0:3bdfc1556537	2508	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
AlexVC97	0:3bdfc1556537	2509	dw = GET_FATTIME();
AlexVC97	0:3bdfc1556537	2510	ST_DWORD(dir + DIR_CrtTime, dw);/* Set created time */
AlexVC97	0:3bdfc1556537	2511	ST_DWORD(dir + DIR_WrtTime, dw);/* Set modified time */
AlexVC97	0:3bdfc1556537	2512	dir[DIR_Attr] = 0; /* Reset attribute */
AlexVC97	0:3bdfc1556537	2513	ST_DWORD(dir + DIR_FileSize, 0);/* Reset file size */
AlexVC97	0:3bdfc1556537	2514	cl = ld_clust(dj.fs, dir); /* Get cluster chain */
AlexVC97	0:3bdfc1556537	2515	st_clust(dir, 0); /* Reset cluster */
AlexVC97	0:3bdfc1556537	2516	dj.fs->wflag = 1;
AlexVC97	0:3bdfc1556537	2517	if (cl) { /* Remove the cluster chain if exist */
AlexVC97	0:3bdfc1556537	2518	dw = dj.fs->winsect;
AlexVC97	0:3bdfc1556537	2519	res = remove_chain(dj.fs, cl);
AlexVC97	0:3bdfc1556537	2520	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	2521	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
AlexVC97	0:3bdfc1556537	2522	res = move_window(dj.fs, dw);
AlexVC97	0:3bdfc1556537	2523	}
AlexVC97	0:3bdfc1556537	2524	}
AlexVC97	0:3bdfc1556537	2525	}
AlexVC97	0:3bdfc1556537	2526	}
AlexVC97	0:3bdfc1556537	2527	else { /* Open an existing file */
AlexVC97	0:3bdfc1556537	2528	if (res == FR_OK) { /* Following succeeded */
AlexVC97	0:3bdfc1556537	2529	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
AlexVC97	0:3bdfc1556537	2530	res = FR_NO_FILE;
AlexVC97	0:3bdfc1556537	2531	} else {
AlexVC97	0:3bdfc1556537	2532	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
AlexVC97	0:3bdfc1556537	2533	res = FR_DENIED;
AlexVC97	0:3bdfc1556537	2534	}
AlexVC97	0:3bdfc1556537	2535	}
AlexVC97	0:3bdfc1556537	2536	}
AlexVC97	0:3bdfc1556537	2537	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	2538	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
AlexVC97	0:3bdfc1556537	2539	mode \|= FA__WRITTEN;
AlexVC97	0:3bdfc1556537	2540	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
AlexVC97	0:3bdfc1556537	2541	fp->dir_ptr = dir;
AlexVC97	0:3bdfc1556537	2542	#if _FS_LOCK
AlexVC97	0:3bdfc1556537	2543	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
AlexVC97	0:3bdfc1556537	2544	if (!fp->lockid) res = FR_INT_ERR;
AlexVC97	0:3bdfc1556537	2545	#endif
AlexVC97	0:3bdfc1556537	2546	}
AlexVC97	0:3bdfc1556537	2547
AlexVC97	0:3bdfc1556537	2548	#else /* R/O configuration */
AlexVC97	0:3bdfc1556537	2549	if (res == FR_OK) { /* Follow succeeded */
AlexVC97	0:3bdfc1556537	2550	dir = dj.dir;
AlexVC97	0:3bdfc1556537	2551	if (!dir) { /* Current directory itself */
AlexVC97	0:3bdfc1556537	2552	res = FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	2553	} else {
AlexVC97	0:3bdfc1556537	2554	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
AlexVC97	0:3bdfc1556537	2555	res = FR_NO_FILE;
AlexVC97	0:3bdfc1556537	2556	}
AlexVC97	0:3bdfc1556537	2557	}
AlexVC97	0:3bdfc1556537	2558	#endif
AlexVC97	0:3bdfc1556537	2559	FREE_BUF();
AlexVC97	0:3bdfc1556537	2560
AlexVC97	0:3bdfc1556537	2561	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	2562	fp->flag = mode; /* File access mode */
AlexVC97	0:3bdfc1556537	2563	fp->err = 0; /* Clear error flag */
AlexVC97	0:3bdfc1556537	2564	fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
AlexVC97	0:3bdfc1556537	2565	fp->fsize = LD_DWORD(dir + DIR_FileSize); /* File size */
AlexVC97	0:3bdfc1556537	2566	fp->fptr = 0; /* File pointer */
AlexVC97	0:3bdfc1556537	2567	fp->dsect = 0;
AlexVC97	0:3bdfc1556537	2568	#if _USE_FASTSEEK
AlexVC97	0:3bdfc1556537	2569	fp->cltbl = 0; /* Normal seek mode */
AlexVC97	0:3bdfc1556537	2570	#endif
AlexVC97	0:3bdfc1556537	2571	fp->fs = dj.fs; /* Validate file object */
AlexVC97	0:3bdfc1556537	2572	fp->id = fp->fs->id;
AlexVC97	0:3bdfc1556537	2573	}
AlexVC97	0:3bdfc1556537	2574	}
AlexVC97	0:3bdfc1556537	2575
AlexVC97	0:3bdfc1556537	2576	LEAVE_FF(dj.fs, res);
AlexVC97	0:3bdfc1556537	2577	}
AlexVC97	0:3bdfc1556537	2578
AlexVC97	0:3bdfc1556537	2579
AlexVC97	0:3bdfc1556537	2580
AlexVC97	0:3bdfc1556537	2581
AlexVC97	0:3bdfc1556537	2582	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2583	/* Read File */
AlexVC97	0:3bdfc1556537	2584	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2585
AlexVC97	0:3bdfc1556537	2586	FRESULT f_read (
AlexVC97	0:3bdfc1556537	2587	FIL* fp, /* Pointer to the file object */
AlexVC97	0:3bdfc1556537	2588	void* buff, /* Pointer to data buffer */
AlexVC97	0:3bdfc1556537	2589	UINT btr, /* Number of bytes to read */
AlexVC97	0:3bdfc1556537	2590	UINT* br /* Pointer to number of bytes read */
AlexVC97	0:3bdfc1556537	2591	)
AlexVC97	0:3bdfc1556537	2592	{
AlexVC97	0:3bdfc1556537	2593	FRESULT res;
AlexVC97	0:3bdfc1556537	2594	DWORD clst, sect, remain;
AlexVC97	0:3bdfc1556537	2595	UINT rcnt, cc;
AlexVC97	0:3bdfc1556537	2596	BYTE csect, rbuff = (BYTE)buff;
AlexVC97	0:3bdfc1556537	2597
AlexVC97	0:3bdfc1556537	2598
AlexVC97	0:3bdfc1556537	2599	br = 0; / Clear read byte counter */
AlexVC97	0:3bdfc1556537	2600
AlexVC97	0:3bdfc1556537	2601	res = validate(fp); /* Check validity */
AlexVC97	0:3bdfc1556537	2602	if (res != FR_OK) LEAVE_FF(fp->fs, res);
AlexVC97	0:3bdfc1556537	2603	if (fp->err) /* Check error */
AlexVC97	0:3bdfc1556537	2604	LEAVE_FF(fp->fs, (FRESULT)fp->err);
AlexVC97	0:3bdfc1556537	2605	if (!(fp->flag & FA_READ)) /* Check access mode */
AlexVC97	0:3bdfc1556537	2606	LEAVE_FF(fp->fs, FR_DENIED);
AlexVC97	0:3bdfc1556537	2607	remain = fp->fsize - fp->fptr;
AlexVC97	0:3bdfc1556537	2608	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
AlexVC97	0:3bdfc1556537	2609
AlexVC97	0:3bdfc1556537	2610	for ( ; btr; /* Repeat until all data read */
AlexVC97	0:3bdfc1556537	2611	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
AlexVC97	0:3bdfc1556537	2612	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
AlexVC97	0:3bdfc1556537	2613	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
AlexVC97	0:3bdfc1556537	2614	if (!csect) { /* On the cluster boundary? */
AlexVC97	0:3bdfc1556537	2615	if (fp->fptr == 0) { /* On the top of the file? */
AlexVC97	0:3bdfc1556537	2616	clst = fp->sclust; /* Follow from the origin */
AlexVC97	0:3bdfc1556537	2617	} else { /* Middle or end of the file */
AlexVC97	0:3bdfc1556537	2618	#if _USE_FASTSEEK
AlexVC97	0:3bdfc1556537	2619	if (fp->cltbl)
AlexVC97	0:3bdfc1556537	2620	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
AlexVC97	0:3bdfc1556537	2621	else
AlexVC97	0:3bdfc1556537	2622	#endif
AlexVC97	0:3bdfc1556537	2623	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
AlexVC97	0:3bdfc1556537	2624	}
AlexVC97	0:3bdfc1556537	2625	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
AlexVC97	0:3bdfc1556537	2626	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	2627	fp->clust = clst; /* Update current cluster */
AlexVC97	0:3bdfc1556537	2628	}
AlexVC97	0:3bdfc1556537	2629	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
AlexVC97	0:3bdfc1556537	2630	if (!sect) ABORT(fp->fs, FR_INT_ERR);
AlexVC97	0:3bdfc1556537	2631	sect += csect;
AlexVC97	0:3bdfc1556537	2632	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
AlexVC97	0:3bdfc1556537	2633	if (cc) { /* Read maximum contiguous sectors directly */
AlexVC97	0:3bdfc1556537	2634	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
AlexVC97	0:3bdfc1556537	2635	cc = fp->fs->csize - csect;
AlexVC97	0:3bdfc1556537	2636	if (disk_read(fp->fs->drv, rbuff, sect, cc) != RES_OK)
AlexVC97	0:3bdfc1556537	2637	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	2638	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
AlexVC97	0:3bdfc1556537	2639	#if _FS_TINY
AlexVC97	0:3bdfc1556537	2640	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
AlexVC97	0:3bdfc1556537	2641	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
AlexVC97	0:3bdfc1556537	2642	#else
AlexVC97	0:3bdfc1556537	2643	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
AlexVC97	0:3bdfc1556537	2644	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
AlexVC97	0:3bdfc1556537	2645	#endif
AlexVC97	0:3bdfc1556537	2646	#endif
AlexVC97	0:3bdfc1556537	2647	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
AlexVC97	0:3bdfc1556537	2648	continue;
AlexVC97	0:3bdfc1556537	2649	}
AlexVC97	0:3bdfc1556537	2650	#if !_FS_TINY
AlexVC97	0:3bdfc1556537	2651	if (fp->dsect != sect) { /* Load data sector if not in cache */
AlexVC97	0:3bdfc1556537	2652	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	2653	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
AlexVC97	0:3bdfc1556537	2654	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
AlexVC97	0:3bdfc1556537	2655	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	2656	fp->flag &= ~FA__DIRTY;
AlexVC97	0:3bdfc1556537	2657	}
AlexVC97	0:3bdfc1556537	2658	#endif
AlexVC97	0:3bdfc1556537	2659	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
AlexVC97	0:3bdfc1556537	2660	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	2661	}
AlexVC97	0:3bdfc1556537	2662	#endif
AlexVC97	0:3bdfc1556537	2663	fp->dsect = sect;
AlexVC97	0:3bdfc1556537	2664	}
AlexVC97	0:3bdfc1556537	2665	rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
AlexVC97	0:3bdfc1556537	2666	if (rcnt > btr) rcnt = btr;
AlexVC97	0:3bdfc1556537	2667	#if _FS_TINY
AlexVC97	0:3bdfc1556537	2668	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
AlexVC97	0:3bdfc1556537	2669	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	2670	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
AlexVC97	0:3bdfc1556537	2671	#else
AlexVC97	0:3bdfc1556537	2672	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
AlexVC97	0:3bdfc1556537	2673	#endif
AlexVC97	0:3bdfc1556537	2674	}
AlexVC97	0:3bdfc1556537	2675
AlexVC97	0:3bdfc1556537	2676	LEAVE_FF(fp->fs, FR_OK);
AlexVC97	0:3bdfc1556537	2677	}
AlexVC97	0:3bdfc1556537	2678
AlexVC97	0:3bdfc1556537	2679
AlexVC97	0:3bdfc1556537	2680
AlexVC97	0:3bdfc1556537	2681
AlexVC97	0:3bdfc1556537	2682	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	2683	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2684	/* Write File */
AlexVC97	0:3bdfc1556537	2685	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2686
AlexVC97	0:3bdfc1556537	2687	FRESULT f_write (
AlexVC97	0:3bdfc1556537	2688	FIL* fp, /* Pointer to the file object */
AlexVC97	0:3bdfc1556537	2689	const void buff, / Pointer to the data to be written */
AlexVC97	0:3bdfc1556537	2690	UINT btw, /* Number of bytes to write */
AlexVC97	0:3bdfc1556537	2691	UINT* bw /* Pointer to number of bytes written */
AlexVC97	0:3bdfc1556537	2692	)
AlexVC97	0:3bdfc1556537	2693	{
AlexVC97	0:3bdfc1556537	2694	FRESULT res;
AlexVC97	0:3bdfc1556537	2695	DWORD clst, sect;
AlexVC97	0:3bdfc1556537	2696	UINT wcnt, cc;
AlexVC97	0:3bdfc1556537	2697	const BYTE wbuff = (const BYTE)buff;
AlexVC97	0:3bdfc1556537	2698	BYTE csect;
AlexVC97	0:3bdfc1556537	2699	bool need_sync = false;
AlexVC97	0:3bdfc1556537	2700
AlexVC97	0:3bdfc1556537	2701	bw = 0; / Clear write byte counter */
AlexVC97	0:3bdfc1556537	2702
AlexVC97	0:3bdfc1556537	2703	res = validate(fp); /* Check validity */
AlexVC97	0:3bdfc1556537	2704	if (res != FR_OK) LEAVE_FF(fp->fs, res);
AlexVC97	0:3bdfc1556537	2705	if (fp->err) /* Check error */
AlexVC97	0:3bdfc1556537	2706	LEAVE_FF(fp->fs, (FRESULT)fp->err);
AlexVC97	0:3bdfc1556537	2707	if (!(fp->flag & FA_WRITE)) /* Check access mode */
AlexVC97	0:3bdfc1556537	2708	LEAVE_FF(fp->fs, FR_DENIED);
AlexVC97	0:3bdfc1556537	2709	if (fp->fptr + btw < fp->fptr) btw = 0; /* File size cannot reach 4GB */
AlexVC97	0:3bdfc1556537	2710
AlexVC97	0:3bdfc1556537	2711	for ( ; btw; /* Repeat until all data written */
AlexVC97	0:3bdfc1556537	2712	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
AlexVC97	0:3bdfc1556537	2713	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
AlexVC97	0:3bdfc1556537	2714	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
AlexVC97	0:3bdfc1556537	2715	if (!csect) { /* On the cluster boundary? */
AlexVC97	0:3bdfc1556537	2716	if (fp->fptr == 0) { /* On the top of the file? */
AlexVC97	0:3bdfc1556537	2717	clst = fp->sclust; /* Follow from the origin */
AlexVC97	0:3bdfc1556537	2718	if (clst == 0) /* When no cluster is allocated, */
AlexVC97	0:3bdfc1556537	2719	clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
AlexVC97	0:3bdfc1556537	2720	} else { /* Middle or end of the file */
AlexVC97	0:3bdfc1556537	2721	#if _USE_FASTSEEK
AlexVC97	0:3bdfc1556537	2722	if (fp->cltbl)
AlexVC97	0:3bdfc1556537	2723	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
AlexVC97	0:3bdfc1556537	2724	else
AlexVC97	0:3bdfc1556537	2725	#endif
AlexVC97	0:3bdfc1556537	2726	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
AlexVC97	0:3bdfc1556537	2727	}
AlexVC97	0:3bdfc1556537	2728	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
AlexVC97	0:3bdfc1556537	2729	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
AlexVC97	0:3bdfc1556537	2730	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	2731	fp->clust = clst; /* Update current cluster */
AlexVC97	0:3bdfc1556537	2732	if (fp->sclust == 0) fp->sclust = clst; /* Set start cluster if the first write */
AlexVC97	0:3bdfc1556537	2733
AlexVC97	0:3bdfc1556537	2734	#if FLUSH_ON_NEW_CLUSTER
AlexVC97	0:3bdfc1556537	2735	// We do not need to flush for the first cluster
AlexVC97	0:3bdfc1556537	2736	if (fp->fptr != 0) {
AlexVC97	0:3bdfc1556537	2737	need_sync = true;
AlexVC97	0:3bdfc1556537	2738	}
AlexVC97	0:3bdfc1556537	2739	#endif
AlexVC97	0:3bdfc1556537	2740	}
AlexVC97	0:3bdfc1556537	2741	#if _FS_TINY
AlexVC97	0:3bdfc1556537	2742	if (fp->fs->winsect == fp->dsect && sync_window(fp->fs)) /* Write-back sector cache */
AlexVC97	0:3bdfc1556537	2743	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	2744	#else
AlexVC97	0:3bdfc1556537	2745	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
AlexVC97	0:3bdfc1556537	2746	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
AlexVC97	0:3bdfc1556537	2747	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	2748	fp->flag &= ~FA__DIRTY;
AlexVC97	0:3bdfc1556537	2749	}
AlexVC97	0:3bdfc1556537	2750	#endif
AlexVC97	0:3bdfc1556537	2751	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
AlexVC97	0:3bdfc1556537	2752	if (!sect) ABORT(fp->fs, FR_INT_ERR);
AlexVC97	0:3bdfc1556537	2753	sect += csect;
AlexVC97	0:3bdfc1556537	2754	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
AlexVC97	0:3bdfc1556537	2755	if (cc) { /* Write maximum contiguous sectors directly */
AlexVC97	0:3bdfc1556537	2756	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
AlexVC97	0:3bdfc1556537	2757	cc = fp->fs->csize - csect;
AlexVC97	0:3bdfc1556537	2758	if (disk_write(fp->fs->drv, wbuff, sect, cc) != RES_OK)
AlexVC97	0:3bdfc1556537	2759	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	2760	#if _FS_MINIMIZE <= 2
AlexVC97	0:3bdfc1556537	2761	#if _FS_TINY
AlexVC97	0:3bdfc1556537	2762	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
AlexVC97	0:3bdfc1556537	2763	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
AlexVC97	0:3bdfc1556537	2764	fp->fs->wflag = 0;
AlexVC97	0:3bdfc1556537	2765	}
AlexVC97	0:3bdfc1556537	2766	#else
AlexVC97	0:3bdfc1556537	2767	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
AlexVC97	0:3bdfc1556537	2768	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
AlexVC97	0:3bdfc1556537	2769	fp->flag &= ~FA__DIRTY;
AlexVC97	0:3bdfc1556537	2770	}
AlexVC97	0:3bdfc1556537	2771	#endif
AlexVC97	0:3bdfc1556537	2772	#endif
AlexVC97	0:3bdfc1556537	2773	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
AlexVC97	0:3bdfc1556537	2774	#if FLUSH_ON_NEW_SECTOR
AlexVC97	0:3bdfc1556537	2775	need_sync = true;
AlexVC97	0:3bdfc1556537	2776	#endif
AlexVC97	0:3bdfc1556537	2777	continue;
AlexVC97	0:3bdfc1556537	2778	}
AlexVC97	0:3bdfc1556537	2779	#if _FS_TINY
AlexVC97	0:3bdfc1556537	2780	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
AlexVC97	0:3bdfc1556537	2781	if (sync_window(fp->fs)) ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	2782	fp->fs->winsect = sect;
AlexVC97	0:3bdfc1556537	2783	}
AlexVC97	0:3bdfc1556537	2784	#else
AlexVC97	0:3bdfc1556537	2785	if (fp->dsect != sect) { /* Fill sector cache with file data */
AlexVC97	0:3bdfc1556537	2786	if (fp->fptr < fp->fsize &&
AlexVC97	0:3bdfc1556537	2787	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
AlexVC97	0:3bdfc1556537	2788	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	2789	}
AlexVC97	0:3bdfc1556537	2790	#endif
AlexVC97	0:3bdfc1556537	2791	fp->dsect = sect;
AlexVC97	0:3bdfc1556537	2792	}
AlexVC97	0:3bdfc1556537	2793	wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
AlexVC97	0:3bdfc1556537	2794	if (wcnt > btw) wcnt = btw;
AlexVC97	0:3bdfc1556537	2795	#if _FS_TINY
AlexVC97	0:3bdfc1556537	2796	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
AlexVC97	0:3bdfc1556537	2797	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	2798	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
AlexVC97	0:3bdfc1556537	2799	fp->fs->wflag = 1;
AlexVC97	0:3bdfc1556537	2800	#else
AlexVC97	0:3bdfc1556537	2801	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
AlexVC97	0:3bdfc1556537	2802	fp->flag \|= FA__DIRTY;
AlexVC97	0:3bdfc1556537	2803	#endif
AlexVC97	0:3bdfc1556537	2804	}
AlexVC97	0:3bdfc1556537	2805
AlexVC97	0:3bdfc1556537	2806	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
AlexVC97	0:3bdfc1556537	2807	fp->flag \|= FA__WRITTEN; /* Set file change flag */
AlexVC97	0:3bdfc1556537	2808
AlexVC97	0:3bdfc1556537	2809	if (need_sync) {
AlexVC97	0:3bdfc1556537	2810	f_sync (fp);
AlexVC97	0:3bdfc1556537	2811	}
AlexVC97	0:3bdfc1556537	2812
AlexVC97	0:3bdfc1556537	2813	LEAVE_FF(fp->fs, FR_OK);
AlexVC97	0:3bdfc1556537	2814	}
AlexVC97	0:3bdfc1556537	2815
AlexVC97	0:3bdfc1556537	2816
AlexVC97	0:3bdfc1556537	2817
AlexVC97	0:3bdfc1556537	2818
AlexVC97	0:3bdfc1556537	2819	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2820	/* Synchronize the File */
AlexVC97	0:3bdfc1556537	2821	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2822
AlexVC97	0:3bdfc1556537	2823	FRESULT f_sync (
AlexVC97	0:3bdfc1556537	2824	FIL* fp /* Pointer to the file object */
AlexVC97	0:3bdfc1556537	2825	)
AlexVC97	0:3bdfc1556537	2826	{
AlexVC97	0:3bdfc1556537	2827	FRESULT res;
AlexVC97	0:3bdfc1556537	2828	DWORD tm;
AlexVC97	0:3bdfc1556537	2829	BYTE *dir;
AlexVC97	0:3bdfc1556537	2830
AlexVC97	0:3bdfc1556537	2831
AlexVC97	0:3bdfc1556537	2832	res = validate(fp); /* Check validity of the object */
AlexVC97	0:3bdfc1556537	2833	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	2834	if (fp->flag & FA__WRITTEN) { /* Is there any change to the file? */
AlexVC97	0:3bdfc1556537	2835	#if !_FS_TINY
AlexVC97	0:3bdfc1556537	2836	if (fp->flag & FA__DIRTY) { /* Write-back cached data if needed */
AlexVC97	0:3bdfc1556537	2837	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
AlexVC97	0:3bdfc1556537	2838	LEAVE_FF(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	2839	fp->flag &= ~FA__DIRTY;
AlexVC97	0:3bdfc1556537	2840	}
AlexVC97	0:3bdfc1556537	2841	#endif
AlexVC97	0:3bdfc1556537	2842	/* Update the directory entry */
AlexVC97	0:3bdfc1556537	2843	res = move_window(fp->fs, fp->dir_sect);
AlexVC97	0:3bdfc1556537	2844	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	2845	dir = fp->dir_ptr;
AlexVC97	0:3bdfc1556537	2846	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
AlexVC97	0:3bdfc1556537	2847	ST_DWORD(dir + DIR_FileSize, fp->fsize); /* Update file size */
AlexVC97	0:3bdfc1556537	2848	st_clust(dir, fp->sclust); /* Update start cluster */
AlexVC97	0:3bdfc1556537	2849	tm = GET_FATTIME(); /* Update modified time */
AlexVC97	0:3bdfc1556537	2850	ST_DWORD(dir + DIR_WrtTime, tm);
AlexVC97	0:3bdfc1556537	2851	ST_WORD(dir + DIR_LstAccDate, 0);
AlexVC97	0:3bdfc1556537	2852	fp->flag &= ~FA__WRITTEN;
AlexVC97	0:3bdfc1556537	2853	fp->fs->wflag = 1;
AlexVC97	0:3bdfc1556537	2854	res = sync_fs(fp->fs);
AlexVC97	0:3bdfc1556537	2855	}
AlexVC97	0:3bdfc1556537	2856	}
AlexVC97	0:3bdfc1556537	2857	}
AlexVC97	0:3bdfc1556537	2858
AlexVC97	0:3bdfc1556537	2859	LEAVE_FF(fp->fs, res);
AlexVC97	0:3bdfc1556537	2860	}
AlexVC97	0:3bdfc1556537	2861
AlexVC97	0:3bdfc1556537	2862	#endif /* !_FS_READONLY */
AlexVC97	0:3bdfc1556537	2863
AlexVC97	0:3bdfc1556537	2864
AlexVC97	0:3bdfc1556537	2865
AlexVC97	0:3bdfc1556537	2866
AlexVC97	0:3bdfc1556537	2867	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2868	/* Close File */
AlexVC97	0:3bdfc1556537	2869	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2870
AlexVC97	0:3bdfc1556537	2871	FRESULT f_close (
AlexVC97	0:3bdfc1556537	2872	FIL fp / Pointer to the file object to be closed */
AlexVC97	0:3bdfc1556537	2873	)
AlexVC97	0:3bdfc1556537	2874	{
AlexVC97	0:3bdfc1556537	2875	FRESULT res;
AlexVC97	0:3bdfc1556537	2876
AlexVC97	0:3bdfc1556537	2877
AlexVC97	0:3bdfc1556537	2878	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	2879	res = f_sync(fp); /* Flush cached data */
AlexVC97	0:3bdfc1556537	2880	if (res == FR_OK)
AlexVC97	0:3bdfc1556537	2881	#endif
AlexVC97	0:3bdfc1556537	2882	{
AlexVC97	0:3bdfc1556537	2883	res = validate(fp); /* Lock volume */
AlexVC97	0:3bdfc1556537	2884	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	2885	#if _FS_REENTRANT
AlexVC97	0:3bdfc1556537	2886	FATFS *fs = fp->fs;
AlexVC97	0:3bdfc1556537	2887	#endif
AlexVC97	0:3bdfc1556537	2888	#if _FS_LOCK
AlexVC97	0:3bdfc1556537	2889	res = dec_lock(fp->lockid); /* Decrement file open counter */
AlexVC97	0:3bdfc1556537	2890	if (res == FR_OK)
AlexVC97	0:3bdfc1556537	2891	#endif
AlexVC97	0:3bdfc1556537	2892	fp->fs = 0; /* Invalidate file object */
AlexVC97	0:3bdfc1556537	2893	#if _FS_REENTRANT
AlexVC97	0:3bdfc1556537	2894	unlock_fs(fs, FR_OK); /* Unlock volume */
AlexVC97	0:3bdfc1556537	2895	#endif
AlexVC97	0:3bdfc1556537	2896	}
AlexVC97	0:3bdfc1556537	2897	}
AlexVC97	0:3bdfc1556537	2898	return res;
AlexVC97	0:3bdfc1556537	2899	}
AlexVC97	0:3bdfc1556537	2900
AlexVC97	0:3bdfc1556537	2901
AlexVC97	0:3bdfc1556537	2902
AlexVC97	0:3bdfc1556537	2903
AlexVC97	0:3bdfc1556537	2904	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2905	/* Change Current Directory or Current Drive, Get Current Directory */
AlexVC97	0:3bdfc1556537	2906	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	2907
AlexVC97	0:3bdfc1556537	2908	#if _FS_RPATH >= 1
AlexVC97	0:3bdfc1556537	2909	#if _VOLUMES >= 2
AlexVC97	0:3bdfc1556537	2910	FRESULT f_chdrive (
AlexVC97	0:3bdfc1556537	2911	const TCHAR* path /* Drive number */
AlexVC97	0:3bdfc1556537	2912	)
AlexVC97	0:3bdfc1556537	2913	{
AlexVC97	0:3bdfc1556537	2914	int vol;
AlexVC97	0:3bdfc1556537	2915
AlexVC97	0:3bdfc1556537	2916
AlexVC97	0:3bdfc1556537	2917	vol = get_ldnumber(&path);
AlexVC97	0:3bdfc1556537	2918	if (vol < 0) return FR_INVALID_DRIVE;
AlexVC97	0:3bdfc1556537	2919
AlexVC97	0:3bdfc1556537	2920	CurrVol = (BYTE)vol;
AlexVC97	0:3bdfc1556537	2921
AlexVC97	0:3bdfc1556537	2922	return FR_OK;
AlexVC97	0:3bdfc1556537	2923	}
AlexVC97	0:3bdfc1556537	2924	#endif
AlexVC97	0:3bdfc1556537	2925
AlexVC97	0:3bdfc1556537	2926
AlexVC97	0:3bdfc1556537	2927	FRESULT f_chdir (
AlexVC97	0:3bdfc1556537	2928	const TCHAR* path /* Pointer to the directory path */
AlexVC97	0:3bdfc1556537	2929	)
AlexVC97	0:3bdfc1556537	2930	{
AlexVC97	0:3bdfc1556537	2931	FRESULT res;
AlexVC97	0:3bdfc1556537	2932	FATFS_DIR dj;
AlexVC97	0:3bdfc1556537	2933	DEFINE_NAMEBUF;
AlexVC97	0:3bdfc1556537	2934
AlexVC97	0:3bdfc1556537	2935
AlexVC97	0:3bdfc1556537	2936	/* Get logical drive number */
AlexVC97	0:3bdfc1556537	2937	res = find_volume(&dj.fs, &path, 0);
AlexVC97	0:3bdfc1556537	2938	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	2939	INIT_BUF(dj);
AlexVC97	0:3bdfc1556537	2940	res = follow_path(&dj, path); /* Follow the path */
AlexVC97	0:3bdfc1556537	2941	FREE_BUF();
AlexVC97	0:3bdfc1556537	2942	if (res == FR_OK) { /* Follow completed */
AlexVC97	0:3bdfc1556537	2943	if (!dj.dir) {
AlexVC97	0:3bdfc1556537	2944	dj.fs->cdir = dj.sclust; /* Start directory itself */
AlexVC97	0:3bdfc1556537	2945	} else {
AlexVC97	0:3bdfc1556537	2946	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
AlexVC97	0:3bdfc1556537	2947	dj.fs->cdir = ld_clust(dj.fs, dj.dir);
AlexVC97	0:3bdfc1556537	2948	else
AlexVC97	0:3bdfc1556537	2949	res = FR_NO_PATH; /* Reached but a file */
AlexVC97	0:3bdfc1556537	2950	}
AlexVC97	0:3bdfc1556537	2951	}
AlexVC97	0:3bdfc1556537	2952	if (res == FR_NO_FILE) res = FR_NO_PATH;
AlexVC97	0:3bdfc1556537	2953	}
AlexVC97	0:3bdfc1556537	2954
AlexVC97	0:3bdfc1556537	2955	LEAVE_FF(dj.fs, res);
AlexVC97	0:3bdfc1556537	2956	}
AlexVC97	0:3bdfc1556537	2957
AlexVC97	0:3bdfc1556537	2958
AlexVC97	0:3bdfc1556537	2959	#if _FS_RPATH >= 2
AlexVC97	0:3bdfc1556537	2960	FRESULT f_getcwd (
AlexVC97	0:3bdfc1556537	2961	TCHAR* buff, /* Pointer to the directory path */
AlexVC97	0:3bdfc1556537	2962	UINT len /* Size of path */
AlexVC97	0:3bdfc1556537	2963	)
AlexVC97	0:3bdfc1556537	2964	{
AlexVC97	0:3bdfc1556537	2965	FRESULT res;
AlexVC97	0:3bdfc1556537	2966	FATFS_DIR dj;
AlexVC97	0:3bdfc1556537	2967	UINT i, n;
AlexVC97	0:3bdfc1556537	2968	DWORD ccl;
AlexVC97	0:3bdfc1556537	2969	TCHAR *tp;
AlexVC97	0:3bdfc1556537	2970	FILINFO fno;
AlexVC97	0:3bdfc1556537	2971	DEFINE_NAMEBUF;
AlexVC97	0:3bdfc1556537	2972
AlexVC97	0:3bdfc1556537	2973
AlexVC97	0:3bdfc1556537	2974	*buff = 0;
AlexVC97	0:3bdfc1556537	2975	/* Get logical drive number */
AlexVC97	0:3bdfc1556537	2976	res = find_volume(&dj.fs, (const TCHAR*)&buff, 0); / Get current volume */
AlexVC97	0:3bdfc1556537	2977	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	2978	INIT_BUF(dj);
AlexVC97	0:3bdfc1556537	2979	i = len; /* Bottom of buffer (directory stack base) */
AlexVC97	0:3bdfc1556537	2980	dj.sclust = dj.fs->cdir; /* Start to follow upper directory from current directory */
AlexVC97	0:3bdfc1556537	2981	while ((ccl = dj.sclust) != 0) { /* Repeat while current directory is a sub-directory */
AlexVC97	0:3bdfc1556537	2982	res = dir_sdi(&dj, 1); /* Get parent directory */
AlexVC97	0:3bdfc1556537	2983	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	2984	res = dir_read(&dj, 0);
AlexVC97	0:3bdfc1556537	2985	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	2986	dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent directory */
AlexVC97	0:3bdfc1556537	2987	res = dir_sdi(&dj, 0);
AlexVC97	0:3bdfc1556537	2988	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	2989	do { /* Find the entry links to the child directory */
AlexVC97	0:3bdfc1556537	2990	res = dir_read(&dj, 0);
AlexVC97	0:3bdfc1556537	2991	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	2992	if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
AlexVC97	0:3bdfc1556537	2993	res = dir_next(&dj, 0);
AlexVC97	0:3bdfc1556537	2994	} while (res == FR_OK);
AlexVC97	0:3bdfc1556537	2995	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
AlexVC97	0:3bdfc1556537	2996	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	2997	#if _USE_LFN
AlexVC97	0:3bdfc1556537	2998	fno.lfname = buff;
AlexVC97	0:3bdfc1556537	2999	fno.lfsize = i;
AlexVC97	0:3bdfc1556537	3000	#endif
AlexVC97	0:3bdfc1556537	3001	get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */
AlexVC97	0:3bdfc1556537	3002	tp = fno.fname;
AlexVC97	0:3bdfc1556537	3003	#if _USE_LFN
AlexVC97	0:3bdfc1556537	3004	if (*buff) tp = buff;
AlexVC97	0:3bdfc1556537	3005	#endif
AlexVC97	0:3bdfc1556537	3006	for (n = 0; tp[n]; n++) ;
AlexVC97	0:3bdfc1556537	3007	if (i < n + 3) {
AlexVC97	0:3bdfc1556537	3008	res = FR_NOT_ENOUGH_CORE; break;
AlexVC97	0:3bdfc1556537	3009	}
AlexVC97	0:3bdfc1556537	3010	while (n) buff[--i] = tp[--n];
AlexVC97	0:3bdfc1556537	3011	buff[--i] = '/';
AlexVC97	0:3bdfc1556537	3012	}
AlexVC97	0:3bdfc1556537	3013	tp = buff;
AlexVC97	0:3bdfc1556537	3014	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3015	#if _VOLUMES >= 2
AlexVC97	0:3bdfc1556537	3016	tp++ = '0' + CurrVol; / Put drive number */
AlexVC97	0:3bdfc1556537	3017	*tp++ = ':';
AlexVC97	0:3bdfc1556537	3018	#endif
AlexVC97	0:3bdfc1556537	3019	if (i == len) { /* Root-directory */
AlexVC97	0:3bdfc1556537	3020	*tp++ = '/';
AlexVC97	0:3bdfc1556537	3021	} else { /* Sub-directroy */
AlexVC97	0:3bdfc1556537	3022	do /* Add stacked path str */
AlexVC97	0:3bdfc1556537	3023	*tp++ = buff[i++];
AlexVC97	0:3bdfc1556537	3024	while (i < len);
AlexVC97	0:3bdfc1556537	3025	}
AlexVC97	0:3bdfc1556537	3026	}
AlexVC97	0:3bdfc1556537	3027	*tp = 0;
AlexVC97	0:3bdfc1556537	3028	FREE_BUF();
AlexVC97	0:3bdfc1556537	3029	}
AlexVC97	0:3bdfc1556537	3030
AlexVC97	0:3bdfc1556537	3031	LEAVE_FF(dj.fs, res);
AlexVC97	0:3bdfc1556537	3032	}
AlexVC97	0:3bdfc1556537	3033	#endif /* _FS_RPATH >= 2 */
AlexVC97	0:3bdfc1556537	3034	#endif /* _FS_RPATH >= 1 */
AlexVC97	0:3bdfc1556537	3035
AlexVC97	0:3bdfc1556537	3036
AlexVC97	0:3bdfc1556537	3037
AlexVC97	0:3bdfc1556537	3038	#if _FS_MINIMIZE <= 2
AlexVC97	0:3bdfc1556537	3039	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3040	/* Seek File R/W Pointer */
AlexVC97	0:3bdfc1556537	3041	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3042
AlexVC97	0:3bdfc1556537	3043	FRESULT f_lseek (
AlexVC97	0:3bdfc1556537	3044	FIL* fp, /* Pointer to the file object */
AlexVC97	0:3bdfc1556537	3045	DWORD ofs /* File pointer from top of file */
AlexVC97	0:3bdfc1556537	3046	)
AlexVC97	0:3bdfc1556537	3047	{
AlexVC97	0:3bdfc1556537	3048	FRESULT res;
AlexVC97	0:3bdfc1556537	3049	DWORD clst, bcs, nsect, ifptr;
AlexVC97	0:3bdfc1556537	3050	#if _USE_FASTSEEK
AlexVC97	0:3bdfc1556537	3051	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
AlexVC97	0:3bdfc1556537	3052	#endif
AlexVC97	0:3bdfc1556537	3053
AlexVC97	0:3bdfc1556537	3054
AlexVC97	0:3bdfc1556537	3055	res = validate(fp); /* Check validity of the object */
AlexVC97	0:3bdfc1556537	3056	if (res != FR_OK) LEAVE_FF(fp->fs, res);
AlexVC97	0:3bdfc1556537	3057	if (fp->err) /* Check error */
AlexVC97	0:3bdfc1556537	3058	LEAVE_FF(fp->fs, (FRESULT)fp->err);
AlexVC97	0:3bdfc1556537	3059
AlexVC97	0:3bdfc1556537	3060	#if _USE_FASTSEEK
AlexVC97	0:3bdfc1556537	3061	if (fp->cltbl) { /* Fast seek */
AlexVC97	0:3bdfc1556537	3062	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
AlexVC97	0:3bdfc1556537	3063	tbl = fp->cltbl;
AlexVC97	0:3bdfc1556537	3064	tlen = tbl++; ulen = 2; / Given table size and required table size */
AlexVC97	0:3bdfc1556537	3065	cl = fp->sclust; /* Top of the chain */
AlexVC97	0:3bdfc1556537	3066	if (cl) {
AlexVC97	0:3bdfc1556537	3067	do {
AlexVC97	0:3bdfc1556537	3068	/* Get a fragment */
AlexVC97	0:3bdfc1556537	3069	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
AlexVC97	0:3bdfc1556537	3070	do {
AlexVC97	0:3bdfc1556537	3071	pcl = cl; ncl++;
AlexVC97	0:3bdfc1556537	3072	cl = get_fat(fp->fs, cl);
AlexVC97	0:3bdfc1556537	3073	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
AlexVC97	0:3bdfc1556537	3074	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	3075	} while (cl == pcl + 1);
AlexVC97	0:3bdfc1556537	3076	if (ulen <= tlen) { /* Store the length and top of the fragment */
AlexVC97	0:3bdfc1556537	3077	tbl++ = ncl; tbl++ = tcl;
AlexVC97	0:3bdfc1556537	3078	}
AlexVC97	0:3bdfc1556537	3079	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
AlexVC97	0:3bdfc1556537	3080	}
AlexVC97	0:3bdfc1556537	3081	fp->cltbl = ulen; / Number of items used */
AlexVC97	0:3bdfc1556537	3082	if (ulen <= tlen)
AlexVC97	0:3bdfc1556537	3083	tbl = 0; / Terminate table */
AlexVC97	0:3bdfc1556537	3084	else
AlexVC97	0:3bdfc1556537	3085	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
AlexVC97	0:3bdfc1556537	3086
AlexVC97	0:3bdfc1556537	3087	} else { /* Fast seek */
AlexVC97	0:3bdfc1556537	3088	if (ofs > fp->fsize) /* Clip offset at the file size */
AlexVC97	0:3bdfc1556537	3089	ofs = fp->fsize;
AlexVC97	0:3bdfc1556537	3090	fp->fptr = ofs; /* Set file pointer */
AlexVC97	0:3bdfc1556537	3091	if (ofs) {
AlexVC97	0:3bdfc1556537	3092	fp->clust = clmt_clust(fp, ofs - 1);
AlexVC97	0:3bdfc1556537	3093	dsc = clust2sect(fp->fs, fp->clust);
AlexVC97	0:3bdfc1556537	3094	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
AlexVC97	0:3bdfc1556537	3095	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
AlexVC97	0:3bdfc1556537	3096	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
AlexVC97	0:3bdfc1556537	3097	#if !_FS_TINY
AlexVC97	0:3bdfc1556537	3098	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	3099	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
AlexVC97	0:3bdfc1556537	3100	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
AlexVC97	0:3bdfc1556537	3101	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	3102	fp->flag &= ~FA__DIRTY;
AlexVC97	0:3bdfc1556537	3103	}
AlexVC97	0:3bdfc1556537	3104	#endif
AlexVC97	0:3bdfc1556537	3105	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
AlexVC97	0:3bdfc1556537	3106	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	3107	#endif
AlexVC97	0:3bdfc1556537	3108	fp->dsect = dsc;
AlexVC97	0:3bdfc1556537	3109	}
AlexVC97	0:3bdfc1556537	3110	}
AlexVC97	0:3bdfc1556537	3111	}
AlexVC97	0:3bdfc1556537	3112	} else
AlexVC97	0:3bdfc1556537	3113	#endif
AlexVC97	0:3bdfc1556537	3114
AlexVC97	0:3bdfc1556537	3115	/* Normal Seek */
AlexVC97	0:3bdfc1556537	3116	{
AlexVC97	0:3bdfc1556537	3117	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
AlexVC97	0:3bdfc1556537	3118	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	3119	&& !(fp->flag & FA_WRITE)
AlexVC97	0:3bdfc1556537	3120	#endif
AlexVC97	0:3bdfc1556537	3121	) ofs = fp->fsize;
AlexVC97	0:3bdfc1556537	3122
AlexVC97	0:3bdfc1556537	3123	ifptr = fp->fptr;
AlexVC97	0:3bdfc1556537	3124	fp->fptr = nsect = 0;
AlexVC97	0:3bdfc1556537	3125	if (ofs) {
AlexVC97	0:3bdfc1556537	3126	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
AlexVC97	0:3bdfc1556537	3127	if (ifptr > 0 &&
AlexVC97	0:3bdfc1556537	3128	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
AlexVC97	0:3bdfc1556537	3129	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
AlexVC97	0:3bdfc1556537	3130	ofs -= fp->fptr;
AlexVC97	0:3bdfc1556537	3131	clst = fp->clust;
AlexVC97	0:3bdfc1556537	3132	} else { /* When seek to back cluster, */
AlexVC97	0:3bdfc1556537	3133	clst = fp->sclust; /* start from the first cluster */
AlexVC97	0:3bdfc1556537	3134	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	3135	if (clst == 0) { /* If no cluster chain, create a new chain */
AlexVC97	0:3bdfc1556537	3136	clst = create_chain(fp->fs, 0);
AlexVC97	0:3bdfc1556537	3137	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
AlexVC97	0:3bdfc1556537	3138	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	3139	fp->sclust = clst;
AlexVC97	0:3bdfc1556537	3140	}
AlexVC97	0:3bdfc1556537	3141	#endif
AlexVC97	0:3bdfc1556537	3142	fp->clust = clst;
AlexVC97	0:3bdfc1556537	3143	}
AlexVC97	0:3bdfc1556537	3144	if (clst != 0) {
AlexVC97	0:3bdfc1556537	3145	while (ofs > bcs) { /* Cluster following loop */
AlexVC97	0:3bdfc1556537	3146	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	3147	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
AlexVC97	0:3bdfc1556537	3148	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
AlexVC97	0:3bdfc1556537	3149	if (clst == 0) { /* When disk gets full, clip file size */
AlexVC97	0:3bdfc1556537	3150	ofs = bcs; break;
AlexVC97	0:3bdfc1556537	3151	}
AlexVC97	0:3bdfc1556537	3152	} else
AlexVC97	0:3bdfc1556537	3153	#endif
AlexVC97	0:3bdfc1556537	3154	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
AlexVC97	0:3bdfc1556537	3155	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	3156	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
AlexVC97	0:3bdfc1556537	3157	fp->clust = clst;
AlexVC97	0:3bdfc1556537	3158	fp->fptr += bcs;
AlexVC97	0:3bdfc1556537	3159	ofs -= bcs;
AlexVC97	0:3bdfc1556537	3160	}
AlexVC97	0:3bdfc1556537	3161	fp->fptr += ofs;
AlexVC97	0:3bdfc1556537	3162	if (ofs % SS(fp->fs)) {
AlexVC97	0:3bdfc1556537	3163	nsect = clust2sect(fp->fs, clst); /* Current sector */
AlexVC97	0:3bdfc1556537	3164	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
AlexVC97	0:3bdfc1556537	3165	nsect += ofs / SS(fp->fs);
AlexVC97	0:3bdfc1556537	3166	}
AlexVC97	0:3bdfc1556537	3167	}
AlexVC97	0:3bdfc1556537	3168	}
AlexVC97	0:3bdfc1556537	3169	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
AlexVC97	0:3bdfc1556537	3170	#if !_FS_TINY
AlexVC97	0:3bdfc1556537	3171	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	3172	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
AlexVC97	0:3bdfc1556537	3173	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
AlexVC97	0:3bdfc1556537	3174	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	3175	fp->flag &= ~FA__DIRTY;
AlexVC97	0:3bdfc1556537	3176	}
AlexVC97	0:3bdfc1556537	3177	#endif
AlexVC97	0:3bdfc1556537	3178	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
AlexVC97	0:3bdfc1556537	3179	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	3180	#endif
AlexVC97	0:3bdfc1556537	3181	fp->dsect = nsect;
AlexVC97	0:3bdfc1556537	3182	}
AlexVC97	0:3bdfc1556537	3183	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	3184	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
AlexVC97	0:3bdfc1556537	3185	fp->fsize = fp->fptr;
AlexVC97	0:3bdfc1556537	3186	fp->flag \|= FA__WRITTEN;
AlexVC97	0:3bdfc1556537	3187	}
AlexVC97	0:3bdfc1556537	3188	#endif
AlexVC97	0:3bdfc1556537	3189	}
AlexVC97	0:3bdfc1556537	3190
AlexVC97	0:3bdfc1556537	3191	LEAVE_FF(fp->fs, res);
AlexVC97	0:3bdfc1556537	3192	}
AlexVC97	0:3bdfc1556537	3193
AlexVC97	0:3bdfc1556537	3194
AlexVC97	0:3bdfc1556537	3195
AlexVC97	0:3bdfc1556537	3196	#if _FS_MINIMIZE <= 1
AlexVC97	0:3bdfc1556537	3197	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3198	/* Create a Directory Object */
AlexVC97	0:3bdfc1556537	3199	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3200
AlexVC97	0:3bdfc1556537	3201	FRESULT f_opendir (
AlexVC97	0:3bdfc1556537	3202	FATFS_DIR* dp, /* Pointer to directory object to create */
AlexVC97	0:3bdfc1556537	3203	const TCHAR* path /* Pointer to the directory path */
AlexVC97	0:3bdfc1556537	3204	)
AlexVC97	0:3bdfc1556537	3205	{
AlexVC97	0:3bdfc1556537	3206	FRESULT res;
AlexVC97	0:3bdfc1556537	3207	FATFS* fs;
AlexVC97	0:3bdfc1556537	3208	DEFINE_NAMEBUF;
AlexVC97	0:3bdfc1556537	3209
AlexVC97	0:3bdfc1556537	3210
AlexVC97	0:3bdfc1556537	3211	if (!dp) return FR_INVALID_OBJECT;
AlexVC97	0:3bdfc1556537	3212
AlexVC97	0:3bdfc1556537	3213	/* Get logical drive number */
AlexVC97	0:3bdfc1556537	3214	res = find_volume(&fs, &path, 0);
AlexVC97	0:3bdfc1556537	3215	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3216	dp->fs = fs;
AlexVC97	0:3bdfc1556537	3217	INIT_BUF(*dp);
AlexVC97	0:3bdfc1556537	3218	res = follow_path(dp, path); /* Follow the path to the directory */
AlexVC97	0:3bdfc1556537	3219	FREE_BUF();
AlexVC97	0:3bdfc1556537	3220	if (res == FR_OK) { /* Follow completed */
AlexVC97	0:3bdfc1556537	3221	if (dp->dir) { /* It is not the origin directory itself */
AlexVC97	0:3bdfc1556537	3222	if (dp->dir[DIR_Attr] & AM_DIR) /* The object is a sub directory */
AlexVC97	0:3bdfc1556537	3223	dp->sclust = ld_clust(fs, dp->dir);
AlexVC97	0:3bdfc1556537	3224	else /* The object is a file */
AlexVC97	0:3bdfc1556537	3225	res = FR_NO_PATH;
AlexVC97	0:3bdfc1556537	3226	}
AlexVC97	0:3bdfc1556537	3227	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3228	dp->id = fs->id;
AlexVC97	0:3bdfc1556537	3229	res = dir_sdi(dp, 0); /* Rewind directory */
AlexVC97	0:3bdfc1556537	3230	#if _FS_LOCK
AlexVC97	0:3bdfc1556537	3231	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3232	if (dp->sclust) {
AlexVC97	0:3bdfc1556537	3233	dp->lockid = inc_lock(dp, 0); /* Lock the sub directory */
AlexVC97	0:3bdfc1556537	3234	if (!dp->lockid)
AlexVC97	0:3bdfc1556537	3235	res = FR_TOO_MANY_OPEN_FILES;
AlexVC97	0:3bdfc1556537	3236	} else {
AlexVC97	0:3bdfc1556537	3237	dp->lockid = 0; /* Root directory need not to be locked */
AlexVC97	0:3bdfc1556537	3238	}
AlexVC97	0:3bdfc1556537	3239	}
AlexVC97	0:3bdfc1556537	3240	#endif
AlexVC97	0:3bdfc1556537	3241	}
AlexVC97	0:3bdfc1556537	3242	}
AlexVC97	0:3bdfc1556537	3243	if (res == FR_NO_FILE) res = FR_NO_PATH;
AlexVC97	0:3bdfc1556537	3244	}
AlexVC97	0:3bdfc1556537	3245	if (res != FR_OK) dp->fs = 0; /* Invalidate the directory object if function faild */
AlexVC97	0:3bdfc1556537	3246
AlexVC97	0:3bdfc1556537	3247	LEAVE_FF(fs, res);
AlexVC97	0:3bdfc1556537	3248	}
AlexVC97	0:3bdfc1556537	3249
AlexVC97	0:3bdfc1556537	3250
AlexVC97	0:3bdfc1556537	3251
AlexVC97	0:3bdfc1556537	3252
AlexVC97	0:3bdfc1556537	3253	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3254	/* Close Directory */
AlexVC97	0:3bdfc1556537	3255	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3256
AlexVC97	0:3bdfc1556537	3257	FRESULT f_closedir (
AlexVC97	0:3bdfc1556537	3258	FATFS_DIR dp / Pointer to the directory object to be closed */
AlexVC97	0:3bdfc1556537	3259	)
AlexVC97	0:3bdfc1556537	3260	{
AlexVC97	0:3bdfc1556537	3261	FRESULT res;
AlexVC97	0:3bdfc1556537	3262
AlexVC97	0:3bdfc1556537	3263
AlexVC97	0:3bdfc1556537	3264	res = validate(dp);
AlexVC97	0:3bdfc1556537	3265	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3266	#if _FS_REENTRANT
AlexVC97	0:3bdfc1556537	3267	FATFS *fs = dp->fs;
AlexVC97	0:3bdfc1556537	3268	#endif
AlexVC97	0:3bdfc1556537	3269	#if _FS_LOCK
AlexVC97	0:3bdfc1556537	3270	if (dp->lockid) /* Decrement sub-directory open counter */
AlexVC97	0:3bdfc1556537	3271	res = dec_lock(dp->lockid);
AlexVC97	0:3bdfc1556537	3272	if (res == FR_OK)
AlexVC97	0:3bdfc1556537	3273	#endif
AlexVC97	0:3bdfc1556537	3274	dp->fs = 0; /* Invalidate directory object */
AlexVC97	0:3bdfc1556537	3275	#if _FS_REENTRANT
AlexVC97	0:3bdfc1556537	3276	unlock_fs(fs, FR_OK); /* Unlock volume */
AlexVC97	0:3bdfc1556537	3277	#endif
AlexVC97	0:3bdfc1556537	3278	}
AlexVC97	0:3bdfc1556537	3279	return res;
AlexVC97	0:3bdfc1556537	3280	}
AlexVC97	0:3bdfc1556537	3281
AlexVC97	0:3bdfc1556537	3282
AlexVC97	0:3bdfc1556537	3283
AlexVC97	0:3bdfc1556537	3284
AlexVC97	0:3bdfc1556537	3285	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3286	/* Read Directory Entries in Sequence */
AlexVC97	0:3bdfc1556537	3287	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3288
AlexVC97	0:3bdfc1556537	3289	FRESULT f_readdir (
AlexVC97	0:3bdfc1556537	3290	FATFS_DIR* dp, /* Pointer to the open directory object */
AlexVC97	0:3bdfc1556537	3291	FILINFO* fno /* Pointer to file information to return */
AlexVC97	0:3bdfc1556537	3292	)
AlexVC97	0:3bdfc1556537	3293	{
AlexVC97	0:3bdfc1556537	3294	FRESULT res;
AlexVC97	0:3bdfc1556537	3295	DEFINE_NAMEBUF;
AlexVC97	0:3bdfc1556537	3296
AlexVC97	0:3bdfc1556537	3297
AlexVC97	0:3bdfc1556537	3298	res = validate(dp); /* Check validity of the object */
AlexVC97	0:3bdfc1556537	3299	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3300	if (!fno) {
AlexVC97	0:3bdfc1556537	3301	res = dir_sdi(dp, 0); /* Rewind the directory object */
AlexVC97	0:3bdfc1556537	3302	} else {
AlexVC97	0:3bdfc1556537	3303	INIT_BUF(*dp);
AlexVC97	0:3bdfc1556537	3304	res = dir_read(dp, 0); /* Read an item */
AlexVC97	0:3bdfc1556537	3305	if (res == FR_NO_FILE) { /* Reached end of directory */
AlexVC97	0:3bdfc1556537	3306	dp->sect = 0;
AlexVC97	0:3bdfc1556537	3307	res = FR_OK;
AlexVC97	0:3bdfc1556537	3308	}
AlexVC97	0:3bdfc1556537	3309	if (res == FR_OK) { /* A valid entry is found */
AlexVC97	0:3bdfc1556537	3310	get_fileinfo(dp, fno); /* Get the object information */
AlexVC97	0:3bdfc1556537	3311	res = dir_next(dp, 0); /* Increment index for next */
AlexVC97	0:3bdfc1556537	3312	if (res == FR_NO_FILE) {
AlexVC97	0:3bdfc1556537	3313	dp->sect = 0;
AlexVC97	0:3bdfc1556537	3314	res = FR_OK;
AlexVC97	0:3bdfc1556537	3315	}
AlexVC97	0:3bdfc1556537	3316	}
AlexVC97	0:3bdfc1556537	3317	FREE_BUF();
AlexVC97	0:3bdfc1556537	3318	}
AlexVC97	0:3bdfc1556537	3319	}
AlexVC97	0:3bdfc1556537	3320
AlexVC97	0:3bdfc1556537	3321	LEAVE_FF(dp->fs, res);
AlexVC97	0:3bdfc1556537	3322	}
AlexVC97	0:3bdfc1556537	3323
AlexVC97	0:3bdfc1556537	3324
AlexVC97	0:3bdfc1556537	3325
AlexVC97	0:3bdfc1556537	3326	#if _USE_FIND
AlexVC97	0:3bdfc1556537	3327	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3328	/* Find next file */
AlexVC97	0:3bdfc1556537	3329	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3330
AlexVC97	0:3bdfc1556537	3331	FRESULT f_findnext (
AlexVC97	0:3bdfc1556537	3332	FATFS_DIR* dp, /* Pointer to the open directory object */
AlexVC97	0:3bdfc1556537	3333	FILINFO* fno /* Pointer to the file information structure */
AlexVC97	0:3bdfc1556537	3334	)
AlexVC97	0:3bdfc1556537	3335	{
AlexVC97	0:3bdfc1556537	3336	FRESULT res;
AlexVC97	0:3bdfc1556537	3337
AlexVC97	0:3bdfc1556537	3338
AlexVC97	0:3bdfc1556537	3339	for (;;) {
AlexVC97	0:3bdfc1556537	3340	res = f_readdir(dp, fno); /* Get a directory item */
AlexVC97	0:3bdfc1556537	3341	if (res != FR_OK \|\| !fno \|\| !fno->fname[0]) break; /* Terminate if any error or end of directory */
AlexVC97	0:3bdfc1556537	3342	#if _USE_LFN
AlexVC97	0:3bdfc1556537	3343	if (fno->lfname && pattern_matching(dp->pat, fno->lfname, 0, 0)) break; /* Test for LFN if exist */
AlexVC97	0:3bdfc1556537	3344	#endif
AlexVC97	0:3bdfc1556537	3345	if (pattern_matching(dp->pat, fno->fname, 0, 0)) break; /* Test for SFN */
AlexVC97	0:3bdfc1556537	3346	}
AlexVC97	0:3bdfc1556537	3347	return res;
AlexVC97	0:3bdfc1556537	3348
AlexVC97	0:3bdfc1556537	3349	}
AlexVC97	0:3bdfc1556537	3350
AlexVC97	0:3bdfc1556537	3351
AlexVC97	0:3bdfc1556537	3352
AlexVC97	0:3bdfc1556537	3353	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3354	/* Find first file */
AlexVC97	0:3bdfc1556537	3355	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3356
AlexVC97	0:3bdfc1556537	3357	FRESULT f_findfirst (
AlexVC97	0:3bdfc1556537	3358	FATFS_DIR* dp, /* Pointer to the blank directory object */
AlexVC97	0:3bdfc1556537	3359	FILINFO* fno, /* Pointer to the file information structure */
AlexVC97	0:3bdfc1556537	3360	const TCHAR* path, /* Pointer to the directory to open */
AlexVC97	0:3bdfc1556537	3361	const TCHAR* pattern /* Pointer to the matching pattern */
AlexVC97	0:3bdfc1556537	3362	)
AlexVC97	0:3bdfc1556537	3363	{
AlexVC97	0:3bdfc1556537	3364	FRESULT res;
AlexVC97	0:3bdfc1556537	3365
AlexVC97	0:3bdfc1556537	3366
AlexVC97	0:3bdfc1556537	3367	dp->pat = pattern; /* Save pointer to pattern string */
AlexVC97	0:3bdfc1556537	3368	res = f_opendir(dp, path); /* Open the target directory */
AlexVC97	0:3bdfc1556537	3369	if (res == FR_OK)
AlexVC97	0:3bdfc1556537	3370	res = f_findnext(dp, fno); /* Find the first item */
AlexVC97	0:3bdfc1556537	3371	return res;
AlexVC97	0:3bdfc1556537	3372	}
AlexVC97	0:3bdfc1556537	3373
AlexVC97	0:3bdfc1556537	3374	#endif /* _USE_FIND */
AlexVC97	0:3bdfc1556537	3375
AlexVC97	0:3bdfc1556537	3376
AlexVC97	0:3bdfc1556537	3377
AlexVC97	0:3bdfc1556537	3378	#if _FS_MINIMIZE == 0
AlexVC97	0:3bdfc1556537	3379	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3380	/* Get File Status */
AlexVC97	0:3bdfc1556537	3381	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3382
AlexVC97	0:3bdfc1556537	3383	FRESULT f_stat (
AlexVC97	0:3bdfc1556537	3384	const TCHAR* path, /* Pointer to the file path */
AlexVC97	0:3bdfc1556537	3385	FILINFO* fno /* Pointer to file information to return */
AlexVC97	0:3bdfc1556537	3386	)
AlexVC97	0:3bdfc1556537	3387	{
AlexVC97	0:3bdfc1556537	3388	FRESULT res;
AlexVC97	0:3bdfc1556537	3389	FATFS_DIR dj;
AlexVC97	0:3bdfc1556537	3390	DEFINE_NAMEBUF;
AlexVC97	0:3bdfc1556537	3391
AlexVC97	0:3bdfc1556537	3392
AlexVC97	0:3bdfc1556537	3393	/* Get logical drive number */
AlexVC97	0:3bdfc1556537	3394	res = find_volume(&dj.fs, &path, 0);
AlexVC97	0:3bdfc1556537	3395	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3396	INIT_BUF(dj);
AlexVC97	0:3bdfc1556537	3397	res = follow_path(&dj, path); /* Follow the file path */
AlexVC97	0:3bdfc1556537	3398	if (res == FR_OK) { /* Follow completed */
AlexVC97	0:3bdfc1556537	3399	if (dj.dir) { /* Found an object */
AlexVC97	0:3bdfc1556537	3400	if (fno) get_fileinfo(&dj, fno);
AlexVC97	0:3bdfc1556537	3401	} else { /* It is root directory */
AlexVC97	0:3bdfc1556537	3402	res = FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	3403	}
AlexVC97	0:3bdfc1556537	3404	}
AlexVC97	0:3bdfc1556537	3405	FREE_BUF();
AlexVC97	0:3bdfc1556537	3406	}
AlexVC97	0:3bdfc1556537	3407
AlexVC97	0:3bdfc1556537	3408	LEAVE_FF(dj.fs, res);
AlexVC97	0:3bdfc1556537	3409	}
AlexVC97	0:3bdfc1556537	3410
AlexVC97	0:3bdfc1556537	3411
AlexVC97	0:3bdfc1556537	3412
AlexVC97	0:3bdfc1556537	3413	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	3414	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3415	/* Get Number of Free Clusters */
AlexVC97	0:3bdfc1556537	3416	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3417
AlexVC97	0:3bdfc1556537	3418	FRESULT f_getfree (
AlexVC97	0:3bdfc1556537	3419	const TCHAR* path, /* Path name of the logical drive number */
AlexVC97	0:3bdfc1556537	3420	DWORD* nclst, /* Pointer to a variable to return number of free clusters */
AlexVC97	0:3bdfc1556537	3421	FATFS** fatfs /* Pointer to return pointer to corresponding file system object */
AlexVC97	0:3bdfc1556537	3422	)
AlexVC97	0:3bdfc1556537	3423	{
AlexVC97	0:3bdfc1556537	3424	FRESULT res;
AlexVC97	0:3bdfc1556537	3425	FATFS *fs;
AlexVC97	0:3bdfc1556537	3426	DWORD nfree, clst, sect, stat;
AlexVC97	0:3bdfc1556537	3427	UINT i;
AlexVC97	0:3bdfc1556537	3428	BYTE fat, *p;
AlexVC97	0:3bdfc1556537	3429
AlexVC97	0:3bdfc1556537	3430
AlexVC97	0:3bdfc1556537	3431	/* Get logical drive number */
AlexVC97	0:3bdfc1556537	3432	res = find_volume(fatfs, &path, 0);
AlexVC97	0:3bdfc1556537	3433	fs = *fatfs;
AlexVC97	0:3bdfc1556537	3434	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3435	/* If free_clust is valid, return it without full cluster scan */
AlexVC97	0:3bdfc1556537	3436	if (fs->free_clust <= fs->n_fatent - 2) {
AlexVC97	0:3bdfc1556537	3437	*nclst = fs->free_clust;
AlexVC97	0:3bdfc1556537	3438	} else {
AlexVC97	0:3bdfc1556537	3439	/* Get number of free clusters */
AlexVC97	0:3bdfc1556537	3440	fat = fs->fs_type;
AlexVC97	0:3bdfc1556537	3441	nfree = 0;
AlexVC97	0:3bdfc1556537	3442	if (fat == FS_FAT12) { /* Sector unalighed entries: Search FAT via regular routine. */
AlexVC97	0:3bdfc1556537	3443	clst = 2;
AlexVC97	0:3bdfc1556537	3444	do {
AlexVC97	0:3bdfc1556537	3445	stat = get_fat(fs, clst);
AlexVC97	0:3bdfc1556537	3446	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
AlexVC97	0:3bdfc1556537	3447	if (stat == 1) { res = FR_INT_ERR; break; }
AlexVC97	0:3bdfc1556537	3448	if (stat == 0) nfree++;
AlexVC97	0:3bdfc1556537	3449	} while (++clst < fs->n_fatent);
AlexVC97	0:3bdfc1556537	3450	} else { /* Sector alighed entries: Accelerate the FAT search. */
AlexVC97	0:3bdfc1556537	3451	clst = fs->n_fatent; sect = fs->fatbase;
AlexVC97	0:3bdfc1556537	3452	i = 0; p = 0;
AlexVC97	0:3bdfc1556537	3453	do {
AlexVC97	0:3bdfc1556537	3454	if (!i) {
AlexVC97	0:3bdfc1556537	3455	res = move_window(fs, sect++);
AlexVC97	0:3bdfc1556537	3456	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	3457	p = fs->win;
AlexVC97	0:3bdfc1556537	3458	i = SS(fs);
AlexVC97	0:3bdfc1556537	3459	}
AlexVC97	0:3bdfc1556537	3460	if (fat == FS_FAT16) {
AlexVC97	0:3bdfc1556537	3461	if (LD_WORD(p) == 0) nfree++;
AlexVC97	0:3bdfc1556537	3462	p += 2; i -= 2;
AlexVC97	0:3bdfc1556537	3463	} else {
AlexVC97	0:3bdfc1556537	3464	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) nfree++;
AlexVC97	0:3bdfc1556537	3465	p += 4; i -= 4;
AlexVC97	0:3bdfc1556537	3466	}
AlexVC97	0:3bdfc1556537	3467	} while (--clst);
AlexVC97	0:3bdfc1556537	3468	}
AlexVC97	0:3bdfc1556537	3469	fs->free_clust = nfree; /* free_clust is valid */
AlexVC97	0:3bdfc1556537	3470	fs->fsi_flag \|= 1; /* FSInfo is to be updated */
AlexVC97	0:3bdfc1556537	3471	nclst = nfree; / Return the free clusters */
AlexVC97	0:3bdfc1556537	3472	}
AlexVC97	0:3bdfc1556537	3473	}
AlexVC97	0:3bdfc1556537	3474	LEAVE_FF(fs, res);
AlexVC97	0:3bdfc1556537	3475	}
AlexVC97	0:3bdfc1556537	3476
AlexVC97	0:3bdfc1556537	3477
AlexVC97	0:3bdfc1556537	3478
AlexVC97	0:3bdfc1556537	3479
AlexVC97	0:3bdfc1556537	3480	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3481	/* Truncate File */
AlexVC97	0:3bdfc1556537	3482	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3483
AlexVC97	0:3bdfc1556537	3484	FRESULT f_truncate (
AlexVC97	0:3bdfc1556537	3485	FIL* fp /* Pointer to the file object */
AlexVC97	0:3bdfc1556537	3486	)
AlexVC97	0:3bdfc1556537	3487	{
AlexVC97	0:3bdfc1556537	3488	FRESULT res;
AlexVC97	0:3bdfc1556537	3489	DWORD ncl;
AlexVC97	0:3bdfc1556537	3490
AlexVC97	0:3bdfc1556537	3491
AlexVC97	0:3bdfc1556537	3492	res = validate(fp); /* Check validity of the object */
AlexVC97	0:3bdfc1556537	3493	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3494	if (fp->err) { /* Check error */
AlexVC97	0:3bdfc1556537	3495	res = (FRESULT)fp->err;
AlexVC97	0:3bdfc1556537	3496	} else {
AlexVC97	0:3bdfc1556537	3497	if (!(fp->flag & FA_WRITE)) /* Check access mode */
AlexVC97	0:3bdfc1556537	3498	res = FR_DENIED;
AlexVC97	0:3bdfc1556537	3499	}
AlexVC97	0:3bdfc1556537	3500	}
AlexVC97	0:3bdfc1556537	3501	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3502	if (fp->fsize > fp->fptr) {
AlexVC97	0:3bdfc1556537	3503	fp->fsize = fp->fptr; /* Set file size to current R/W point */
AlexVC97	0:3bdfc1556537	3504	fp->flag \|= FA__WRITTEN;
AlexVC97	0:3bdfc1556537	3505	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
AlexVC97	0:3bdfc1556537	3506	res = remove_chain(fp->fs, fp->sclust);
AlexVC97	0:3bdfc1556537	3507	fp->sclust = 0;
AlexVC97	0:3bdfc1556537	3508	} else { /* When truncate a part of the file, remove remaining clusters */
AlexVC97	0:3bdfc1556537	3509	ncl = get_fat(fp->fs, fp->clust);
AlexVC97	0:3bdfc1556537	3510	res = FR_OK;
AlexVC97	0:3bdfc1556537	3511	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	3512	if (ncl == 1) res = FR_INT_ERR;
AlexVC97	0:3bdfc1556537	3513	if (res == FR_OK && ncl < fp->fs->n_fatent) {
AlexVC97	0:3bdfc1556537	3514	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
AlexVC97	0:3bdfc1556537	3515	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
AlexVC97	0:3bdfc1556537	3516	}
AlexVC97	0:3bdfc1556537	3517	}
AlexVC97	0:3bdfc1556537	3518	#if !_FS_TINY
AlexVC97	0:3bdfc1556537	3519	if (res == FR_OK && (fp->flag & FA__DIRTY)) {
AlexVC97	0:3bdfc1556537	3520	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
AlexVC97	0:3bdfc1556537	3521	res = FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	3522	else
AlexVC97	0:3bdfc1556537	3523	fp->flag &= ~FA__DIRTY;
AlexVC97	0:3bdfc1556537	3524	}
AlexVC97	0:3bdfc1556537	3525	#endif
AlexVC97	0:3bdfc1556537	3526	}
AlexVC97	0:3bdfc1556537	3527	if (res != FR_OK) fp->err = (FRESULT)res;
AlexVC97	0:3bdfc1556537	3528	}
AlexVC97	0:3bdfc1556537	3529
AlexVC97	0:3bdfc1556537	3530	LEAVE_FF(fp->fs, res);
AlexVC97	0:3bdfc1556537	3531	}
AlexVC97	0:3bdfc1556537	3532
AlexVC97	0:3bdfc1556537	3533
AlexVC97	0:3bdfc1556537	3534
AlexVC97	0:3bdfc1556537	3535
AlexVC97	0:3bdfc1556537	3536	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3537	/* Delete a File or Directory */
AlexVC97	0:3bdfc1556537	3538	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3539
AlexVC97	0:3bdfc1556537	3540	FRESULT f_unlink (
AlexVC97	0:3bdfc1556537	3541	const TCHAR* path /* Pointer to the file or directory path */
AlexVC97	0:3bdfc1556537	3542	)
AlexVC97	0:3bdfc1556537	3543	{
AlexVC97	0:3bdfc1556537	3544	FRESULT res;
AlexVC97	0:3bdfc1556537	3545	FATFS_DIR dj, sdj;
AlexVC97	0:3bdfc1556537	3546	BYTE *dir;
AlexVC97	0:3bdfc1556537	3547	DWORD dclst = 0;
AlexVC97	0:3bdfc1556537	3548	DEFINE_NAMEBUF;
AlexVC97	0:3bdfc1556537	3549
AlexVC97	0:3bdfc1556537	3550
AlexVC97	0:3bdfc1556537	3551	/* Get logical drive number */
AlexVC97	0:3bdfc1556537	3552	res = find_volume(&dj.fs, &path, 1);
AlexVC97	0:3bdfc1556537	3553	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3554	INIT_BUF(dj);
AlexVC97	0:3bdfc1556537	3555	res = follow_path(&dj, path); /* Follow the file path */
AlexVC97	0:3bdfc1556537	3556	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
AlexVC97	0:3bdfc1556537	3557	res = FR_INVALID_NAME; /* Cannot remove dot entry */
AlexVC97	0:3bdfc1556537	3558	#if _FS_LOCK
AlexVC97	0:3bdfc1556537	3559	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open object */
AlexVC97	0:3bdfc1556537	3560	#endif
AlexVC97	0:3bdfc1556537	3561	if (res == FR_OK) { /* The object is accessible */
AlexVC97	0:3bdfc1556537	3562	dir = dj.dir;
AlexVC97	0:3bdfc1556537	3563	if (!dir) {
AlexVC97	0:3bdfc1556537	3564	res = FR_INVALID_NAME; /* Cannot remove the origin directory */
AlexVC97	0:3bdfc1556537	3565	} else {
AlexVC97	0:3bdfc1556537	3566	if (dir[DIR_Attr] & AM_RDO)
AlexVC97	0:3bdfc1556537	3567	res = FR_DENIED; /* Cannot remove R/O object */
AlexVC97	0:3bdfc1556537	3568	}
AlexVC97	0:3bdfc1556537	3569	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3570	dclst = ld_clust(dj.fs, dir);
AlexVC97	0:3bdfc1556537	3571	if (dclst && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-directory ? */
AlexVC97	0:3bdfc1556537	3572	#if _FS_RPATH
AlexVC97	0:3bdfc1556537	3573	if (dclst == dj.fs->cdir) { /* Is it the current directory? */
AlexVC97	0:3bdfc1556537	3574	res = FR_DENIED;
AlexVC97	0:3bdfc1556537	3575	} else
AlexVC97	0:3bdfc1556537	3576	#endif
AlexVC97	0:3bdfc1556537	3577	{
AlexVC97	0:3bdfc1556537	3578	mem_cpy(&sdj, &dj, sizeof (FATFS_DIR)); /* Open the sub-directory */
AlexVC97	0:3bdfc1556537	3579	sdj.sclust = dclst;
AlexVC97	0:3bdfc1556537	3580	res = dir_sdi(&sdj, 2);
AlexVC97	0:3bdfc1556537	3581	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3582	res = dir_read(&sdj, 0); /* Read an item (excluding dot entries) */
AlexVC97	0:3bdfc1556537	3583	if (res == FR_OK) res = FR_DENIED; /* Not empty? (cannot remove) */
AlexVC97	0:3bdfc1556537	3584	if (res == FR_NO_FILE) res = FR_OK; /* Empty? (can remove) */
AlexVC97	0:3bdfc1556537	3585	}
AlexVC97	0:3bdfc1556537	3586	}
AlexVC97	0:3bdfc1556537	3587	}
AlexVC97	0:3bdfc1556537	3588	}
AlexVC97	0:3bdfc1556537	3589	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3590	res = dir_remove(&dj); /* Remove the directory entry */
AlexVC97	0:3bdfc1556537	3591	if (res == FR_OK && dclst) /* Remove the cluster chain if exist */
AlexVC97	0:3bdfc1556537	3592	res = remove_chain(dj.fs, dclst);
AlexVC97	0:3bdfc1556537	3593	if (res == FR_OK) res = sync_fs(dj.fs);
AlexVC97	0:3bdfc1556537	3594	}
AlexVC97	0:3bdfc1556537	3595	}
AlexVC97	0:3bdfc1556537	3596	FREE_BUF();
AlexVC97	0:3bdfc1556537	3597	}
AlexVC97	0:3bdfc1556537	3598
AlexVC97	0:3bdfc1556537	3599	LEAVE_FF(dj.fs, res);
AlexVC97	0:3bdfc1556537	3600	}
AlexVC97	0:3bdfc1556537	3601
AlexVC97	0:3bdfc1556537	3602
AlexVC97	0:3bdfc1556537	3603
AlexVC97	0:3bdfc1556537	3604
AlexVC97	0:3bdfc1556537	3605	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3606	/* Create a Directory */
AlexVC97	0:3bdfc1556537	3607	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3608
AlexVC97	0:3bdfc1556537	3609	FRESULT f_mkdir (
AlexVC97	0:3bdfc1556537	3610	const TCHAR* path /* Pointer to the directory path */
AlexVC97	0:3bdfc1556537	3611	)
AlexVC97	0:3bdfc1556537	3612	{
AlexVC97	0:3bdfc1556537	3613	FRESULT res;
AlexVC97	0:3bdfc1556537	3614	FATFS_DIR dj;
AlexVC97	0:3bdfc1556537	3615	BYTE *dir, n;
AlexVC97	0:3bdfc1556537	3616	DWORD dsc, dcl, pcl, tm = GET_FATTIME();
AlexVC97	0:3bdfc1556537	3617	DEFINE_NAMEBUF;
AlexVC97	0:3bdfc1556537	3618
AlexVC97	0:3bdfc1556537	3619
AlexVC97	0:3bdfc1556537	3620	/* Get logical drive number */
AlexVC97	0:3bdfc1556537	3621	res = find_volume(&dj.fs, &path, 1);
AlexVC97	0:3bdfc1556537	3622	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3623	INIT_BUF(dj);
AlexVC97	0:3bdfc1556537	3624	res = follow_path(&dj, path); /* Follow the file path */
AlexVC97	0:3bdfc1556537	3625	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
AlexVC97	0:3bdfc1556537	3626	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NSFLAG] & NS_DOT))
AlexVC97	0:3bdfc1556537	3627	res = FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	3628	if (res == FR_NO_FILE) { /* Can create a new directory */
AlexVC97	0:3bdfc1556537	3629	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
AlexVC97	0:3bdfc1556537	3630	res = FR_OK;
AlexVC97	0:3bdfc1556537	3631	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
AlexVC97	0:3bdfc1556537	3632	if (dcl == 1) res = FR_INT_ERR;
AlexVC97	0:3bdfc1556537	3633	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	3634	if (res == FR_OK) /* Flush FAT */
AlexVC97	0:3bdfc1556537	3635	res = sync_window(dj.fs);
AlexVC97	0:3bdfc1556537	3636	if (res == FR_OK) { /* Initialize the new directory table */
AlexVC97	0:3bdfc1556537	3637	dsc = clust2sect(dj.fs, dcl);
AlexVC97	0:3bdfc1556537	3638	dir = dj.fs->win;
AlexVC97	0:3bdfc1556537	3639	mem_set(dir, 0, SS(dj.fs));
AlexVC97	0:3bdfc1556537	3640	mem_set(dir + DIR_Name, ' ', 11); /* Create "." entry */
AlexVC97	0:3bdfc1556537	3641	dir[DIR_Name] = '.';
AlexVC97	0:3bdfc1556537	3642	dir[DIR_Attr] = AM_DIR;
AlexVC97	0:3bdfc1556537	3643	ST_DWORD(dir + DIR_WrtTime, tm);
AlexVC97	0:3bdfc1556537	3644	st_clust(dir, dcl);
AlexVC97	0:3bdfc1556537	3645	mem_cpy(dir + SZ_DIRE, dir, SZ_DIRE); /* Create ".." entry */
AlexVC97	0:3bdfc1556537	3646	dir[SZ_DIRE + 1] = '.'; pcl = dj.sclust;
AlexVC97	0:3bdfc1556537	3647	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
AlexVC97	0:3bdfc1556537	3648	pcl = 0;
AlexVC97	0:3bdfc1556537	3649	st_clust(dir + SZ_DIRE, pcl);
AlexVC97	0:3bdfc1556537	3650	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
AlexVC97	0:3bdfc1556537	3651	dj.fs->winsect = dsc++;
AlexVC97	0:3bdfc1556537	3652	dj.fs->wflag = 1;
AlexVC97	0:3bdfc1556537	3653	res = sync_window(dj.fs);
AlexVC97	0:3bdfc1556537	3654	if (res != FR_OK) break;
AlexVC97	0:3bdfc1556537	3655	mem_set(dir, 0, SS(dj.fs));
AlexVC97	0:3bdfc1556537	3656	}
AlexVC97	0:3bdfc1556537	3657	}
AlexVC97	0:3bdfc1556537	3658	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
AlexVC97	0:3bdfc1556537	3659	if (res != FR_OK) {
AlexVC97	0:3bdfc1556537	3660	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
AlexVC97	0:3bdfc1556537	3661	} else {
AlexVC97	0:3bdfc1556537	3662	dir = dj.dir;
AlexVC97	0:3bdfc1556537	3663	dir[DIR_Attr] = AM_DIR; /* Attribute */
AlexVC97	0:3bdfc1556537	3664	ST_DWORD(dir + DIR_WrtTime, tm); /* Created time */
AlexVC97	0:3bdfc1556537	3665	st_clust(dir, dcl); /* Table start cluster */
AlexVC97	0:3bdfc1556537	3666	dj.fs->wflag = 1;
AlexVC97	0:3bdfc1556537	3667	res = sync_fs(dj.fs);
AlexVC97	0:3bdfc1556537	3668	}
AlexVC97	0:3bdfc1556537	3669	}
AlexVC97	0:3bdfc1556537	3670	FREE_BUF();
AlexVC97	0:3bdfc1556537	3671	}
AlexVC97	0:3bdfc1556537	3672
AlexVC97	0:3bdfc1556537	3673	LEAVE_FF(dj.fs, res);
AlexVC97	0:3bdfc1556537	3674	}
AlexVC97	0:3bdfc1556537	3675
AlexVC97	0:3bdfc1556537	3676
AlexVC97	0:3bdfc1556537	3677
AlexVC97	0:3bdfc1556537	3678
AlexVC97	0:3bdfc1556537	3679	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3680	/* Change Attribute */
AlexVC97	0:3bdfc1556537	3681	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3682
AlexVC97	0:3bdfc1556537	3683	FRESULT f_chmod (
AlexVC97	0:3bdfc1556537	3684	const TCHAR* path, /* Pointer to the file path */
AlexVC97	0:3bdfc1556537	3685	BYTE attr, /* Attribute bits */
AlexVC97	0:3bdfc1556537	3686	BYTE mask /* Attribute mask to change */
AlexVC97	0:3bdfc1556537	3687	)
AlexVC97	0:3bdfc1556537	3688	{
AlexVC97	0:3bdfc1556537	3689	FRESULT res;
AlexVC97	0:3bdfc1556537	3690	FATFS_DIR dj;
AlexVC97	0:3bdfc1556537	3691	BYTE *dir;
AlexVC97	0:3bdfc1556537	3692	DEFINE_NAMEBUF;
AlexVC97	0:3bdfc1556537	3693
AlexVC97	0:3bdfc1556537	3694
AlexVC97	0:3bdfc1556537	3695	res = find_volume(&dj.fs, &path, 1); /* Get logical drive number */
AlexVC97	0:3bdfc1556537	3696	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3697	INIT_BUF(dj);
AlexVC97	0:3bdfc1556537	3698	res = follow_path(&dj, path); /* Follow the file path */
AlexVC97	0:3bdfc1556537	3699	FREE_BUF();
AlexVC97	0:3bdfc1556537	3700	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
AlexVC97	0:3bdfc1556537	3701	res = FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	3702	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3703	dir = dj.dir;
AlexVC97	0:3bdfc1556537	3704	if (!dir) { /* Is it a root directory? */
AlexVC97	0:3bdfc1556537	3705	res = FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	3706	} else { /* File or sub directory */
AlexVC97	0:3bdfc1556537	3707	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
AlexVC97	0:3bdfc1556537	3708	dir[DIR_Attr] = (attr & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
AlexVC97	0:3bdfc1556537	3709	dj.fs->wflag = 1;
AlexVC97	0:3bdfc1556537	3710	res = sync_fs(dj.fs);
AlexVC97	0:3bdfc1556537	3711	}
AlexVC97	0:3bdfc1556537	3712	}
AlexVC97	0:3bdfc1556537	3713	}
AlexVC97	0:3bdfc1556537	3714
AlexVC97	0:3bdfc1556537	3715	LEAVE_FF(dj.fs, res);
AlexVC97	0:3bdfc1556537	3716	}
AlexVC97	0:3bdfc1556537	3717
AlexVC97	0:3bdfc1556537	3718
AlexVC97	0:3bdfc1556537	3719
AlexVC97	0:3bdfc1556537	3720
AlexVC97	0:3bdfc1556537	3721	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3722	/* Rename File/Directory */
AlexVC97	0:3bdfc1556537	3723	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3724
AlexVC97	0:3bdfc1556537	3725	FRESULT f_rename (
AlexVC97	0:3bdfc1556537	3726	const TCHAR* path_old, /* Pointer to the object to be renamed */
AlexVC97	0:3bdfc1556537	3727	const TCHAR* path_new /* Pointer to the new name */
AlexVC97	0:3bdfc1556537	3728	)
AlexVC97	0:3bdfc1556537	3729	{
AlexVC97	0:3bdfc1556537	3730	FRESULT res;
AlexVC97	0:3bdfc1556537	3731	FATFS_DIR djo, djn;
AlexVC97	0:3bdfc1556537	3732	BYTE buf[21], *dir;
AlexVC97	0:3bdfc1556537	3733	DWORD dw;
AlexVC97	0:3bdfc1556537	3734	DEFINE_NAMEBUF;
AlexVC97	0:3bdfc1556537	3735
AlexVC97	0:3bdfc1556537	3736
AlexVC97	0:3bdfc1556537	3737	/* Get logical drive number of the source object */
AlexVC97	0:3bdfc1556537	3738	res = find_volume(&djo.fs, &path_old, 1);
AlexVC97	0:3bdfc1556537	3739	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3740	djn.fs = djo.fs;
AlexVC97	0:3bdfc1556537	3741	INIT_BUF(djo);
AlexVC97	0:3bdfc1556537	3742	res = follow_path(&djo, path_old); /* Check old object */
AlexVC97	0:3bdfc1556537	3743	if (_FS_RPATH && res == FR_OK && (djo.fn[NSFLAG] & NS_DOT))
AlexVC97	0:3bdfc1556537	3744	res = FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	3745	#if _FS_LOCK
AlexVC97	0:3bdfc1556537	3746	if (res == FR_OK) res = chk_lock(&djo, 2);
AlexVC97	0:3bdfc1556537	3747	#endif
AlexVC97	0:3bdfc1556537	3748	if (res == FR_OK) { /* Old object is found */
AlexVC97	0:3bdfc1556537	3749	if (!djo.dir) { /* Is root dir? */
AlexVC97	0:3bdfc1556537	3750	res = FR_NO_FILE;
AlexVC97	0:3bdfc1556537	3751	} else {
AlexVC97	0:3bdfc1556537	3752	mem_cpy(buf, djo.dir + DIR_Attr, 21); /* Save information about object except name */
AlexVC97	0:3bdfc1556537	3753	mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Duplicate the directory object */
AlexVC97	0:3bdfc1556537	3754	if (get_ldnumber(&path_new) >= 0) /* Snip drive number off and ignore it */
AlexVC97	0:3bdfc1556537	3755	res = follow_path(&djn, path_new); /* and make sure if new object name is not conflicting */
AlexVC97	0:3bdfc1556537	3756	else
AlexVC97	0:3bdfc1556537	3757	res = FR_INVALID_DRIVE;
AlexVC97	0:3bdfc1556537	3758	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
AlexVC97	0:3bdfc1556537	3759	if (res == FR_NO_FILE) { /* It is a valid path and no name collision */
AlexVC97	0:3bdfc1556537	3760	res = dir_register(&djn); /* Register the new entry */
AlexVC97	0:3bdfc1556537	3761	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3762	/* Start of critical section where any interruption can cause a cross-link */
AlexVC97	0:3bdfc1556537	3763	dir = djn.dir; /* Copy information about object except name */
AlexVC97	0:3bdfc1556537	3764	mem_cpy(dir + 13, buf + 2, 19);
AlexVC97	0:3bdfc1556537	3765	dir[DIR_Attr] = buf[0] \| AM_ARC;
AlexVC97	0:3bdfc1556537	3766	djo.fs->wflag = 1;
AlexVC97	0:3bdfc1556537	3767	if ((dir[DIR_Attr] & AM_DIR) && djo.sclust != djn.sclust) { /* Update .. entry in the sub-directory if needed */
AlexVC97	0:3bdfc1556537	3768	dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
AlexVC97	0:3bdfc1556537	3769	if (!dw) {
AlexVC97	0:3bdfc1556537	3770	res = FR_INT_ERR;
AlexVC97	0:3bdfc1556537	3771	} else {
AlexVC97	0:3bdfc1556537	3772	res = move_window(djo.fs, dw);
AlexVC97	0:3bdfc1556537	3773	dir = djo.fs->win + SZ_DIRE * 1; /* Ptr to .. entry */
AlexVC97	0:3bdfc1556537	3774	if (res == FR_OK && dir[1] == '.') {
AlexVC97	0:3bdfc1556537	3775	st_clust(dir, djn.sclust);
AlexVC97	0:3bdfc1556537	3776	djo.fs->wflag = 1;
AlexVC97	0:3bdfc1556537	3777	}
AlexVC97	0:3bdfc1556537	3778	}
AlexVC97	0:3bdfc1556537	3779	}
AlexVC97	0:3bdfc1556537	3780	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3781	res = dir_remove(&djo); /* Remove old entry */
AlexVC97	0:3bdfc1556537	3782	if (res == FR_OK)
AlexVC97	0:3bdfc1556537	3783	res = sync_fs(djo.fs);
AlexVC97	0:3bdfc1556537	3784	}
AlexVC97	0:3bdfc1556537	3785	/* End of critical section */
AlexVC97	0:3bdfc1556537	3786	}
AlexVC97	0:3bdfc1556537	3787	}
AlexVC97	0:3bdfc1556537	3788	}
AlexVC97	0:3bdfc1556537	3789	}
AlexVC97	0:3bdfc1556537	3790	FREE_BUF();
AlexVC97	0:3bdfc1556537	3791	}
AlexVC97	0:3bdfc1556537	3792
AlexVC97	0:3bdfc1556537	3793	LEAVE_FF(djo.fs, res);
AlexVC97	0:3bdfc1556537	3794	}
AlexVC97	0:3bdfc1556537	3795
AlexVC97	0:3bdfc1556537	3796
AlexVC97	0:3bdfc1556537	3797
AlexVC97	0:3bdfc1556537	3798
AlexVC97	0:3bdfc1556537	3799	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3800	/* Change Timestamp */
AlexVC97	0:3bdfc1556537	3801	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3802
AlexVC97	0:3bdfc1556537	3803	FRESULT f_utime (
AlexVC97	0:3bdfc1556537	3804	const TCHAR* path, /* Pointer to the file/directory name */
AlexVC97	0:3bdfc1556537	3805	const FILINFO* fno /* Pointer to the time stamp to be set */
AlexVC97	0:3bdfc1556537	3806	)
AlexVC97	0:3bdfc1556537	3807	{
AlexVC97	0:3bdfc1556537	3808	FRESULT res;
AlexVC97	0:3bdfc1556537	3809	FATFS_DIR dj;
AlexVC97	0:3bdfc1556537	3810	BYTE *dir;
AlexVC97	0:3bdfc1556537	3811	DEFINE_NAMEBUF;
AlexVC97	0:3bdfc1556537	3812
AlexVC97	0:3bdfc1556537	3813
AlexVC97	0:3bdfc1556537	3814	/* Get logical drive number */
AlexVC97	0:3bdfc1556537	3815	res = find_volume(&dj.fs, &path, 1);
AlexVC97	0:3bdfc1556537	3816	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3817	INIT_BUF(dj);
AlexVC97	0:3bdfc1556537	3818	res = follow_path(&dj, path); /* Follow the file path */
AlexVC97	0:3bdfc1556537	3819	FREE_BUF();
AlexVC97	0:3bdfc1556537	3820	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
AlexVC97	0:3bdfc1556537	3821	res = FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	3822	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3823	dir = dj.dir;
AlexVC97	0:3bdfc1556537	3824	if (!dir) { /* Root directory */
AlexVC97	0:3bdfc1556537	3825	res = FR_INVALID_NAME;
AlexVC97	0:3bdfc1556537	3826	} else { /* File or sub-directory */
AlexVC97	0:3bdfc1556537	3827	ST_WORD(dir + DIR_WrtTime, fno->ftime);
AlexVC97	0:3bdfc1556537	3828	ST_WORD(dir + DIR_WrtDate, fno->fdate);
AlexVC97	0:3bdfc1556537	3829	dj.fs->wflag = 1;
AlexVC97	0:3bdfc1556537	3830	res = sync_fs(dj.fs);
AlexVC97	0:3bdfc1556537	3831	}
AlexVC97	0:3bdfc1556537	3832	}
AlexVC97	0:3bdfc1556537	3833	}
AlexVC97	0:3bdfc1556537	3834
AlexVC97	0:3bdfc1556537	3835	LEAVE_FF(dj.fs, res);
AlexVC97	0:3bdfc1556537	3836	}
AlexVC97	0:3bdfc1556537	3837
AlexVC97	0:3bdfc1556537	3838	#endif /* !_FS_READONLY */
AlexVC97	0:3bdfc1556537	3839	#endif /* _FS_MINIMIZE == 0 */
AlexVC97	0:3bdfc1556537	3840	#endif /* _FS_MINIMIZE <= 1 */
AlexVC97	0:3bdfc1556537	3841	#endif /* _FS_MINIMIZE <= 2 */
AlexVC97	0:3bdfc1556537	3842
AlexVC97	0:3bdfc1556537	3843
AlexVC97	0:3bdfc1556537	3844
AlexVC97	0:3bdfc1556537	3845
AlexVC97	0:3bdfc1556537	3846	#if _USE_LABEL
AlexVC97	0:3bdfc1556537	3847	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3848	/* Get volume label */
AlexVC97	0:3bdfc1556537	3849	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3850
AlexVC97	0:3bdfc1556537	3851	FRESULT f_getlabel (
AlexVC97	0:3bdfc1556537	3852	const TCHAR* path, /* Path name of the logical drive number */
AlexVC97	0:3bdfc1556537	3853	TCHAR* label, /* Pointer to a buffer to return the volume label */
AlexVC97	0:3bdfc1556537	3854	DWORD* vsn /* Pointer to a variable to return the volume serial number */
AlexVC97	0:3bdfc1556537	3855	)
AlexVC97	0:3bdfc1556537	3856	{
AlexVC97	0:3bdfc1556537	3857	FRESULT res;
AlexVC97	0:3bdfc1556537	3858	FATFS_DIR dj;
AlexVC97	0:3bdfc1556537	3859	UINT i, j;
AlexVC97	0:3bdfc1556537	3860	#if _USE_LFN && _LFN_UNICODE
AlexVC97	0:3bdfc1556537	3861	WCHAR w;
AlexVC97	0:3bdfc1556537	3862	#endif
AlexVC97	0:3bdfc1556537	3863
AlexVC97	0:3bdfc1556537	3864
AlexVC97	0:3bdfc1556537	3865	/* Get logical drive number */
AlexVC97	0:3bdfc1556537	3866	res = find_volume(&dj.fs, &path, 0);
AlexVC97	0:3bdfc1556537	3867
AlexVC97	0:3bdfc1556537	3868	/* Get volume label */
AlexVC97	0:3bdfc1556537	3869	if (res == FR_OK && label) {
AlexVC97	0:3bdfc1556537	3870	dj.sclust = 0; /* Open root directory */
AlexVC97	0:3bdfc1556537	3871	res = dir_sdi(&dj, 0);
AlexVC97	0:3bdfc1556537	3872	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3873	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
AlexVC97	0:3bdfc1556537	3874	if (res == FR_OK) { /* A volume label is exist */
AlexVC97	0:3bdfc1556537	3875	#if _USE_LFN && _LFN_UNICODE
AlexVC97	0:3bdfc1556537	3876	i = j = 0;
AlexVC97	0:3bdfc1556537	3877	do {
AlexVC97	0:3bdfc1556537	3878	w = (i < 11) ? dj.dir[i++] : ' ';
AlexVC97	0:3bdfc1556537	3879	if (IsDBCS1(w) && i < 11 && IsDBCS2(dj.dir[i]))
AlexVC97	0:3bdfc1556537	3880	w = w << 8 \| dj.dir[i++];
AlexVC97	0:3bdfc1556537	3881	label[j++] = ff_convert(w, 1); /* OEM -> Unicode */
AlexVC97	0:3bdfc1556537	3882	} while (j < 11);
AlexVC97	0:3bdfc1556537	3883	#else
AlexVC97	0:3bdfc1556537	3884	mem_cpy(label, dj.dir, 11);
AlexVC97	0:3bdfc1556537	3885	#endif
AlexVC97	0:3bdfc1556537	3886	j = 11;
AlexVC97	0:3bdfc1556537	3887	do {
AlexVC97	0:3bdfc1556537	3888	label[j] = 0;
AlexVC97	0:3bdfc1556537	3889	if (!j) break;
AlexVC97	0:3bdfc1556537	3890	} while (label[--j] == ' ');
AlexVC97	0:3bdfc1556537	3891	}
AlexVC97	0:3bdfc1556537	3892	if (res == FR_NO_FILE) { /* No label, return nul string */
AlexVC97	0:3bdfc1556537	3893	label[0] = 0;
AlexVC97	0:3bdfc1556537	3894	res = FR_OK;
AlexVC97	0:3bdfc1556537	3895	}
AlexVC97	0:3bdfc1556537	3896	}
AlexVC97	0:3bdfc1556537	3897	}
AlexVC97	0:3bdfc1556537	3898
AlexVC97	0:3bdfc1556537	3899	/* Get volume serial number */
AlexVC97	0:3bdfc1556537	3900	if (res == FR_OK && vsn) {
AlexVC97	0:3bdfc1556537	3901	res = move_window(dj.fs, dj.fs->volbase);
AlexVC97	0:3bdfc1556537	3902	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3903	i = dj.fs->fs_type == FS_FAT32 ? BS_VolID32 : BS_VolID;
AlexVC97	0:3bdfc1556537	3904	*vsn = LD_DWORD(&dj.fs->win[i]);
AlexVC97	0:3bdfc1556537	3905	}
AlexVC97	0:3bdfc1556537	3906	}
AlexVC97	0:3bdfc1556537	3907
AlexVC97	0:3bdfc1556537	3908	LEAVE_FF(dj.fs, res);
AlexVC97	0:3bdfc1556537	3909	}
AlexVC97	0:3bdfc1556537	3910
AlexVC97	0:3bdfc1556537	3911
AlexVC97	0:3bdfc1556537	3912
AlexVC97	0:3bdfc1556537	3913	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	3914	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3915	/* Set volume label */
AlexVC97	0:3bdfc1556537	3916	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	3917
AlexVC97	0:3bdfc1556537	3918	FRESULT f_setlabel (
AlexVC97	0:3bdfc1556537	3919	const TCHAR* label /* Pointer to the volume label to set */
AlexVC97	0:3bdfc1556537	3920	)
AlexVC97	0:3bdfc1556537	3921	{
AlexVC97	0:3bdfc1556537	3922	FRESULT res;
AlexVC97	0:3bdfc1556537	3923	FATFS_DIR dj;
AlexVC97	0:3bdfc1556537	3924	BYTE vn[11];
AlexVC97	0:3bdfc1556537	3925	UINT i, j, sl;
AlexVC97	0:3bdfc1556537	3926	WCHAR w;
AlexVC97	0:3bdfc1556537	3927	DWORD tm;
AlexVC97	0:3bdfc1556537	3928
AlexVC97	0:3bdfc1556537	3929
AlexVC97	0:3bdfc1556537	3930	/* Get logical drive number */
AlexVC97	0:3bdfc1556537	3931	res = find_volume(&dj.fs, &label, 1);
AlexVC97	0:3bdfc1556537	3932	if (res) LEAVE_FF(dj.fs, res);
AlexVC97	0:3bdfc1556537	3933
AlexVC97	0:3bdfc1556537	3934	/* Create a volume label in directory form */
AlexVC97	0:3bdfc1556537	3935	vn[0] = 0;
AlexVC97	0:3bdfc1556537	3936	for (sl = 0; label[sl]; sl++) ; /* Get name length */
AlexVC97	0:3bdfc1556537	3937	for ( ; sl && label[sl - 1] == ' '; sl--) ; /* Remove trailing spaces */
AlexVC97	0:3bdfc1556537	3938	if (sl) { /* Create volume label in directory form */
AlexVC97	0:3bdfc1556537	3939	i = j = 0;
AlexVC97	0:3bdfc1556537	3940	do {
AlexVC97	0:3bdfc1556537	3941	#if _USE_LFN && _LFN_UNICODE
AlexVC97	0:3bdfc1556537	3942	w = ff_convert(ff_wtoupper(label[i++]), 0);
AlexVC97	0:3bdfc1556537	3943	#else
AlexVC97	0:3bdfc1556537	3944	w = (BYTE)label[i++];
AlexVC97	0:3bdfc1556537	3945	if (IsDBCS1(w))
AlexVC97	0:3bdfc1556537	3946	w = (j < 10 && i < sl && IsDBCS2(label[i])) ? w << 8 \| (BYTE)label[i++] : 0;
AlexVC97	0:3bdfc1556537	3947	#if _USE_LFN
AlexVC97	0:3bdfc1556537	3948	w = ff_convert(ff_wtoupper(ff_convert(w, 1)), 0);
AlexVC97	0:3bdfc1556537	3949	#else
AlexVC97	0:3bdfc1556537	3950	if (IsLower(w)) w -= 0x20; /* To upper ASCII characters */
AlexVC97	0:3bdfc1556537	3951	#ifdef _EXCVT
AlexVC97	0:3bdfc1556537	3952	if (w >= 0x80) w = ExCvt[w - 0x80]; /* To upper extended characters (SBCS cfg) */
AlexVC97	0:3bdfc1556537	3953	#else
AlexVC97	0:3bdfc1556537	3954	if (!_DF1S && w >= 0x80) w = 0; /* Reject extended characters (ASCII cfg) */
AlexVC97	0:3bdfc1556537	3955	#endif
AlexVC97	0:3bdfc1556537	3956	#endif
AlexVC97	0:3bdfc1556537	3957	#endif
AlexVC97	0:3bdfc1556537	3958	if (!w \|\| chk_chr("\"+,.:;<=>\?[]\|\x7F", w) \|\| j >= (UINT)((w >= 0x100) ? 10 : 11)) / Reject invalid characters for volume label */
AlexVC97	0:3bdfc1556537	3959	LEAVE_FF(dj.fs, FR_INVALID_NAME);
AlexVC97	0:3bdfc1556537	3960	if (w >= 0x100) vn[j++] = (BYTE)(w >> 8);
AlexVC97	0:3bdfc1556537	3961	vn[j++] = (BYTE)w;
AlexVC97	0:3bdfc1556537	3962	} while (i < sl);
AlexVC97	0:3bdfc1556537	3963	while (j < 11) vn[j++] = ' '; /* Fill remaining name field */
AlexVC97	0:3bdfc1556537	3964	if (vn[0] == DDEM) LEAVE_FF(dj.fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */
AlexVC97	0:3bdfc1556537	3965	}
AlexVC97	0:3bdfc1556537	3966
AlexVC97	0:3bdfc1556537	3967	/* Set volume label */
AlexVC97	0:3bdfc1556537	3968	dj.sclust = 0; /* Open root directory */
AlexVC97	0:3bdfc1556537	3969	res = dir_sdi(&dj, 0);
AlexVC97	0:3bdfc1556537	3970	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3971	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
AlexVC97	0:3bdfc1556537	3972	if (res == FR_OK) { /* A volume label is found */
AlexVC97	0:3bdfc1556537	3973	if (vn[0]) {
AlexVC97	0:3bdfc1556537	3974	mem_cpy(dj.dir, vn, 11); /* Change the volume label name */
AlexVC97	0:3bdfc1556537	3975	tm = GET_FATTIME();
AlexVC97	0:3bdfc1556537	3976	ST_DWORD(dj.dir + DIR_WrtTime, tm);
AlexVC97	0:3bdfc1556537	3977	} else {
AlexVC97	0:3bdfc1556537	3978	dj.dir[0] = DDEM; /* Remove the volume label */
AlexVC97	0:3bdfc1556537	3979	}
AlexVC97	0:3bdfc1556537	3980	dj.fs->wflag = 1;
AlexVC97	0:3bdfc1556537	3981	res = sync_fs(dj.fs);
AlexVC97	0:3bdfc1556537	3982	} else { /* No volume label is found or error */
AlexVC97	0:3bdfc1556537	3983	if (res == FR_NO_FILE) {
AlexVC97	0:3bdfc1556537	3984	res = FR_OK;
AlexVC97	0:3bdfc1556537	3985	if (vn[0]) { /* Create volume label as new */
AlexVC97	0:3bdfc1556537	3986	res = dir_alloc(&dj, 1); /* Allocate an entry for volume label */
AlexVC97	0:3bdfc1556537	3987	if (res == FR_OK) {
AlexVC97	0:3bdfc1556537	3988	mem_set(dj.dir, 0, SZ_DIRE); /* Set volume label */
AlexVC97	0:3bdfc1556537	3989	mem_cpy(dj.dir, vn, 11);
AlexVC97	0:3bdfc1556537	3990	dj.dir[DIR_Attr] = AM_VOL;
AlexVC97	0:3bdfc1556537	3991	tm = GET_FATTIME();
AlexVC97	0:3bdfc1556537	3992	ST_DWORD(dj.dir + DIR_WrtTime, tm);
AlexVC97	0:3bdfc1556537	3993	dj.fs->wflag = 1;
AlexVC97	0:3bdfc1556537	3994	res = sync_fs(dj.fs);
AlexVC97	0:3bdfc1556537	3995	}
AlexVC97	0:3bdfc1556537	3996	}
AlexVC97	0:3bdfc1556537	3997	}
AlexVC97	0:3bdfc1556537	3998	}
AlexVC97	0:3bdfc1556537	3999	}
AlexVC97	0:3bdfc1556537	4000
AlexVC97	0:3bdfc1556537	4001	LEAVE_FF(dj.fs, res);
AlexVC97	0:3bdfc1556537	4002	}
AlexVC97	0:3bdfc1556537	4003
AlexVC97	0:3bdfc1556537	4004	#endif /* !_FS_READONLY */
AlexVC97	0:3bdfc1556537	4005	#endif /* _USE_LABEL */
AlexVC97	0:3bdfc1556537	4006
AlexVC97	0:3bdfc1556537	4007
AlexVC97	0:3bdfc1556537	4008
AlexVC97	0:3bdfc1556537	4009	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4010	/* Forward data to the stream directly (available on only tiny cfg) */
AlexVC97	0:3bdfc1556537	4011	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4012	#if _USE_FORWARD && _FS_TINY
AlexVC97	0:3bdfc1556537	4013
AlexVC97	0:3bdfc1556537	4014	FRESULT f_forward (
AlexVC97	0:3bdfc1556537	4015	FIL* fp, /* Pointer to the file object */
AlexVC97	0:3bdfc1556537	4016	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
AlexVC97	0:3bdfc1556537	4017	UINT btf, /* Number of bytes to forward */
AlexVC97	0:3bdfc1556537	4018	UINT* bf /* Pointer to number of bytes forwarded */
AlexVC97	0:3bdfc1556537	4019	)
AlexVC97	0:3bdfc1556537	4020	{
AlexVC97	0:3bdfc1556537	4021	FRESULT res;
AlexVC97	0:3bdfc1556537	4022	DWORD remain, clst, sect;
AlexVC97	0:3bdfc1556537	4023	UINT rcnt;
AlexVC97	0:3bdfc1556537	4024	BYTE csect;
AlexVC97	0:3bdfc1556537	4025
AlexVC97	0:3bdfc1556537	4026
AlexVC97	0:3bdfc1556537	4027	bf = 0; / Clear transfer byte counter */
AlexVC97	0:3bdfc1556537	4028
AlexVC97	0:3bdfc1556537	4029	res = validate(fp); /* Check validity of the object */
AlexVC97	0:3bdfc1556537	4030	if (res != FR_OK) LEAVE_FF(fp->fs, res);
AlexVC97	0:3bdfc1556537	4031	if (fp->err) /* Check error */
AlexVC97	0:3bdfc1556537	4032	LEAVE_FF(fp->fs, (FRESULT)fp->err);
AlexVC97	0:3bdfc1556537	4033	if (!(fp->flag & FA_READ)) /* Check access mode */
AlexVC97	0:3bdfc1556537	4034	LEAVE_FF(fp->fs, FR_DENIED);
AlexVC97	0:3bdfc1556537	4035
AlexVC97	0:3bdfc1556537	4036	remain = fp->fsize - fp->fptr;
AlexVC97	0:3bdfc1556537	4037	if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */
AlexVC97	0:3bdfc1556537	4038
AlexVC97	0:3bdfc1556537	4039	for ( ; btf && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
AlexVC97	0:3bdfc1556537	4040	fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {
AlexVC97	0:3bdfc1556537	4041	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
AlexVC97	0:3bdfc1556537	4042	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
AlexVC97	0:3bdfc1556537	4043	if (!csect) { /* On the cluster boundary? */
AlexVC97	0:3bdfc1556537	4044	clst = (fp->fptr == 0) ? /* On the top of the file? */
AlexVC97	0:3bdfc1556537	4045	fp->sclust : get_fat(fp->fs, fp->clust);
AlexVC97	0:3bdfc1556537	4046	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
AlexVC97	0:3bdfc1556537	4047	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	4048	fp->clust = clst; /* Update current cluster */
AlexVC97	0:3bdfc1556537	4049	}
AlexVC97	0:3bdfc1556537	4050	}
AlexVC97	0:3bdfc1556537	4051	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
AlexVC97	0:3bdfc1556537	4052	if (!sect) ABORT(fp->fs, FR_INT_ERR);
AlexVC97	0:3bdfc1556537	4053	sect += csect;
AlexVC97	0:3bdfc1556537	4054	if (move_window(fp->fs, sect) != FR_OK) /* Move sector window */
AlexVC97	0:3bdfc1556537	4055	ABORT(fp->fs, FR_DISK_ERR);
AlexVC97	0:3bdfc1556537	4056	fp->dsect = sect;
AlexVC97	0:3bdfc1556537	4057	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
AlexVC97	0:3bdfc1556537	4058	if (rcnt > btf) rcnt = btf;
AlexVC97	0:3bdfc1556537	4059	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
AlexVC97	0:3bdfc1556537	4060	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
AlexVC97	0:3bdfc1556537	4061	}
AlexVC97	0:3bdfc1556537	4062
AlexVC97	0:3bdfc1556537	4063	LEAVE_FF(fp->fs, FR_OK);
AlexVC97	0:3bdfc1556537	4064	}
AlexVC97	0:3bdfc1556537	4065	#endif /* _USE_FORWARD */
AlexVC97	0:3bdfc1556537	4066
AlexVC97	0:3bdfc1556537	4067
AlexVC97	0:3bdfc1556537	4068
AlexVC97	0:3bdfc1556537	4069	#if _USE_MKFS && !_FS_READONLY
AlexVC97	0:3bdfc1556537	4070	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4071	/* Create file system on the logical drive */
AlexVC97	0:3bdfc1556537	4072	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4073	#define N_ROOTDIR 512 /* Number of root directory entries for FAT12/16 */
AlexVC97	0:3bdfc1556537	4074	#define N_FATS 1 /* Number of FATs (1 or 2) */
AlexVC97	0:3bdfc1556537	4075
AlexVC97	0:3bdfc1556537	4076
AlexVC97	0:3bdfc1556537	4077	FRESULT f_mkfs (
AlexVC97	0:3bdfc1556537	4078	const TCHAR* path, /* Logical drive number */
AlexVC97	0:3bdfc1556537	4079	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
AlexVC97	0:3bdfc1556537	4080	UINT au /* Size of allocation unit in unit of byte or sector */
AlexVC97	0:3bdfc1556537	4081	)
AlexVC97	0:3bdfc1556537	4082	{
AlexVC97	0:3bdfc1556537	4083	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
AlexVC97	0:3bdfc1556537	4084	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
AlexVC97	0:3bdfc1556537	4085	int vol;
AlexVC97	0:3bdfc1556537	4086	BYTE fmt, md, sys, *tbl, pdrv, part;
AlexVC97	0:3bdfc1556537	4087	DWORD n_clst, vs, n, wsect;
AlexVC97	0:3bdfc1556537	4088	UINT i;
AlexVC97	0:3bdfc1556537	4089	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
AlexVC97	0:3bdfc1556537	4090	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
AlexVC97	0:3bdfc1556537	4091	FATFS *fs;
AlexVC97	0:3bdfc1556537	4092	DSTATUS stat;
AlexVC97	0:3bdfc1556537	4093	#if _USE_TRIM
AlexVC97	0:3bdfc1556537	4094	DWORD eb[2];
AlexVC97	0:3bdfc1556537	4095	#endif
AlexVC97	0:3bdfc1556537	4096
AlexVC97	0:3bdfc1556537	4097
AlexVC97	0:3bdfc1556537	4098	/* Check mounted drive and clear work area */
AlexVC97	0:3bdfc1556537	4099	if (sfd > 1) return FR_INVALID_PARAMETER;
AlexVC97	0:3bdfc1556537	4100	vol = get_ldnumber(&path);
AlexVC97	0:3bdfc1556537	4101	if (vol < 0) return FR_INVALID_DRIVE;
AlexVC97	0:3bdfc1556537	4102	fs = FatFs[vol];
AlexVC97	0:3bdfc1556537	4103	if (!fs) return FR_NOT_ENABLED;
AlexVC97	0:3bdfc1556537	4104	fs->fs_type = 0;
AlexVC97	0:3bdfc1556537	4105	pdrv = LD2PD(vol); /* Physical drive */
AlexVC97	0:3bdfc1556537	4106	part = LD2PT(vol); /* Partition (0:auto detect, 1-4:get from partition table)*/
AlexVC97	0:3bdfc1556537	4107
AlexVC97	0:3bdfc1556537	4108	/* Get disk statics */
AlexVC97	0:3bdfc1556537	4109	stat = disk_initialize(pdrv);
AlexVC97	0:3bdfc1556537	4110	if (stat & STA_NOINIT) return FR_NOT_READY;
AlexVC97	0:3bdfc1556537	4111	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
AlexVC97	0:3bdfc1556537	4112	#if _MAX_SS != _MIN_SS /* Get disk sector size */
AlexVC97	0:3bdfc1556537	4113	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS \|\| SS(fs) < _MIN_SS)
AlexVC97	0:3bdfc1556537	4114	return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	4115	#endif
AlexVC97	0:3bdfc1556537	4116	if (_MULTI_PARTITION && part) {
AlexVC97	0:3bdfc1556537	4117	/* Get partition information from partition table in the MBR */
AlexVC97	0:3bdfc1556537	4118	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	4119	if (LD_WORD(fs->win + BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
AlexVC97	0:3bdfc1556537	4120	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
AlexVC97	0:3bdfc1556537	4121	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
AlexVC97	0:3bdfc1556537	4122	b_vol = LD_DWORD(tbl + 8); /* Volume start sector */
AlexVC97	0:3bdfc1556537	4123	n_vol = LD_DWORD(tbl + 12); /* Volume size */
AlexVC97	0:3bdfc1556537	4124	} else {
AlexVC97	0:3bdfc1556537	4125	/* Create a partition in this function */
AlexVC97	0:3bdfc1556537	4126	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
AlexVC97	0:3bdfc1556537	4127	return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	4128	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
AlexVC97	0:3bdfc1556537	4129	n_vol -= b_vol; /* Volume size */
AlexVC97	0:3bdfc1556537	4130	}
AlexVC97	0:3bdfc1556537	4131
AlexVC97	0:3bdfc1556537	4132	if (au & (au - 1)) au = 0;
AlexVC97	0:3bdfc1556537	4133	if (!au) { /* AU auto selection */
AlexVC97	0:3bdfc1556537	4134	vs = n_vol / (2000 / (SS(fs) / 512));
AlexVC97	0:3bdfc1556537	4135	for (i = 0; vs < vst[i]; i++) ;
AlexVC97	0:3bdfc1556537	4136	au = cst[i];
AlexVC97	0:3bdfc1556537	4137	}
AlexVC97	0:3bdfc1556537	4138	if (au >= _MIN_SS) au /= SS(fs); /* Number of sectors per cluster */
AlexVC97	0:3bdfc1556537	4139	if (!au) au = 1;
AlexVC97	0:3bdfc1556537	4140	if (au > 128) au = 128;
AlexVC97	0:3bdfc1556537	4141
AlexVC97	0:3bdfc1556537	4142	/* Pre-compute number of clusters and FAT sub-type */
AlexVC97	0:3bdfc1556537	4143	n_clst = n_vol / au;
AlexVC97	0:3bdfc1556537	4144	fmt = FS_FAT12;
AlexVC97	0:3bdfc1556537	4145	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
AlexVC97	0:3bdfc1556537	4146	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
AlexVC97	0:3bdfc1556537	4147
AlexVC97	0:3bdfc1556537	4148	/* Determine offset and size of FAT structure */
AlexVC97	0:3bdfc1556537	4149	if (fmt == FS_FAT32) {
AlexVC97	0:3bdfc1556537	4150	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
AlexVC97	0:3bdfc1556537	4151	n_rsv = 32;
AlexVC97	0:3bdfc1556537	4152	n_dir = 0;
AlexVC97	0:3bdfc1556537	4153	} else {
AlexVC97	0:3bdfc1556537	4154	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
AlexVC97	0:3bdfc1556537	4155	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
AlexVC97	0:3bdfc1556537	4156	n_rsv = 1;
AlexVC97	0:3bdfc1556537	4157	n_dir = (DWORD)N_ROOTDIR * SZ_DIRE / SS(fs);
AlexVC97	0:3bdfc1556537	4158	}
AlexVC97	0:3bdfc1556537	4159	b_fat = b_vol + n_rsv; /* FAT area start sector */
AlexVC97	0:3bdfc1556537	4160	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
AlexVC97	0:3bdfc1556537	4161	b_data = b_dir + n_dir; /* Data area start sector */
AlexVC97	0:3bdfc1556537	4162	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
AlexVC97	0:3bdfc1556537	4163
AlexVC97	0:3bdfc1556537	4164	/* Align data start sector to erase block boundary (for flash memory media) */
AlexVC97	0:3bdfc1556537	4165	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
AlexVC97	0:3bdfc1556537	4166	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
AlexVC97	0:3bdfc1556537	4167	n = (n - b_data) / N_FATS;
AlexVC97	0:3bdfc1556537	4168	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
AlexVC97	0:3bdfc1556537	4169	n_rsv += n;
AlexVC97	0:3bdfc1556537	4170	b_fat += n;
AlexVC97	0:3bdfc1556537	4171	} else { /* FAT12/16: Expand FAT size */
AlexVC97	0:3bdfc1556537	4172	n_fat += n;
AlexVC97	0:3bdfc1556537	4173	}
AlexVC97	0:3bdfc1556537	4174
AlexVC97	0:3bdfc1556537	4175	/* Determine number of clusters and final check of validity of the FAT sub-type */
AlexVC97	0:3bdfc1556537	4176	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
AlexVC97	0:3bdfc1556537	4177	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
AlexVC97	0:3bdfc1556537	4178	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
AlexVC97	0:3bdfc1556537	4179	return FR_MKFS_ABORTED;
AlexVC97	0:3bdfc1556537	4180
AlexVC97	0:3bdfc1556537	4181	/* Determine system ID in the partition table */
AlexVC97	0:3bdfc1556537	4182	if (fmt == FS_FAT32) {
AlexVC97	0:3bdfc1556537	4183	sys = 0x0C; /* FAT32X */
AlexVC97	0:3bdfc1556537	4184	} else {
AlexVC97	0:3bdfc1556537	4185	if (fmt == FS_FAT12 && n_vol < 0x10000) {
AlexVC97	0:3bdfc1556537	4186	sys = 0x01; /* FAT12(<65536) */
AlexVC97	0:3bdfc1556537	4187	} else {
AlexVC97	0:3bdfc1556537	4188	sys = (n_vol < 0x10000) ? 0x04 : 0x06; /* FAT16(<65536) : FAT12/16(>=65536) */
AlexVC97	0:3bdfc1556537	4189	}
AlexVC97	0:3bdfc1556537	4190	}
AlexVC97	0:3bdfc1556537	4191
AlexVC97	0:3bdfc1556537	4192	if (_MULTI_PARTITION && part) {
AlexVC97	0:3bdfc1556537	4193	/* Update system ID in the partition table */
AlexVC97	0:3bdfc1556537	4194	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
AlexVC97	0:3bdfc1556537	4195	tbl[4] = sys;
AlexVC97	0:3bdfc1556537	4196	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to teh MBR */
AlexVC97	0:3bdfc1556537	4197	return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	4198	md = 0xF8;
AlexVC97	0:3bdfc1556537	4199	} else {
AlexVC97	0:3bdfc1556537	4200	if (sfd) { /* No partition table (SFD) */
AlexVC97	0:3bdfc1556537	4201	md = 0xF0;
AlexVC97	0:3bdfc1556537	4202	} else { /* Create partition table (FDISK) */
AlexVC97	0:3bdfc1556537	4203	mem_set(fs->win, 0, SS(fs));
AlexVC97	0:3bdfc1556537	4204	tbl = fs->win + MBR_Table; /* Create partition table for single partition in the drive */
AlexVC97	0:3bdfc1556537	4205	tbl[1] = 1; /* Partition start head */
AlexVC97	0:3bdfc1556537	4206	tbl[2] = 1; /* Partition start sector */
AlexVC97	0:3bdfc1556537	4207	tbl[3] = 0; /* Partition start cylinder */
AlexVC97	0:3bdfc1556537	4208	tbl[4] = sys; /* System type */
AlexVC97	0:3bdfc1556537	4209	tbl[5] = 254; /* Partition end head */
AlexVC97	0:3bdfc1556537	4210	n = (b_vol + n_vol) / 63 / 255;
AlexVC97	0:3bdfc1556537	4211	tbl[6] = (BYTE)(n >> 2 \| 63); /* Partition end sector */
AlexVC97	0:3bdfc1556537	4212	tbl[7] = (BYTE)n; /* End cylinder */
AlexVC97	0:3bdfc1556537	4213	ST_DWORD(tbl + 8, 63); /* Partition start in LBA */
AlexVC97	0:3bdfc1556537	4214	ST_DWORD(tbl + 12, n_vol); /* Partition size in LBA */
AlexVC97	0:3bdfc1556537	4215	ST_WORD(fs->win + BS_55AA, 0xAA55); /* MBR signature */
AlexVC97	0:3bdfc1556537	4216	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR */
AlexVC97	0:3bdfc1556537	4217	return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	4218	md = 0xF8;
AlexVC97	0:3bdfc1556537	4219	}
AlexVC97	0:3bdfc1556537	4220	}
AlexVC97	0:3bdfc1556537	4221
AlexVC97	0:3bdfc1556537	4222	/* Create BPB in the VBR */
AlexVC97	0:3bdfc1556537	4223	tbl = fs->win; /* Clear sector */
AlexVC97	0:3bdfc1556537	4224	mem_set(tbl, 0, SS(fs));
AlexVC97	0:3bdfc1556537	4225	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
AlexVC97	0:3bdfc1556537	4226	i = SS(fs); /* Sector size */
AlexVC97	0:3bdfc1556537	4227	ST_WORD(tbl + BPB_BytsPerSec, i);
AlexVC97	0:3bdfc1556537	4228	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
AlexVC97	0:3bdfc1556537	4229	ST_WORD(tbl + BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
AlexVC97	0:3bdfc1556537	4230	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
AlexVC97	0:3bdfc1556537	4231	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of root directory entries */
AlexVC97	0:3bdfc1556537	4232	ST_WORD(tbl + BPB_RootEntCnt, i);
AlexVC97	0:3bdfc1556537	4233	if (n_vol < 0x10000) { /* Number of total sectors */
AlexVC97	0:3bdfc1556537	4234	ST_WORD(tbl + BPB_TotSec16, n_vol);
AlexVC97	0:3bdfc1556537	4235	} else {
AlexVC97	0:3bdfc1556537	4236	ST_DWORD(tbl + BPB_TotSec32, n_vol);
AlexVC97	0:3bdfc1556537	4237	}
AlexVC97	0:3bdfc1556537	4238	tbl[BPB_Media] = md; /* Media descriptor */
AlexVC97	0:3bdfc1556537	4239	ST_WORD(tbl + BPB_SecPerTrk, 63); /* Number of sectors per track */
AlexVC97	0:3bdfc1556537	4240	ST_WORD(tbl + BPB_NumHeads, 255); /* Number of heads */
AlexVC97	0:3bdfc1556537	4241	ST_DWORD(tbl + BPB_HiddSec, b_vol); /* Hidden sectors */
AlexVC97	0:3bdfc1556537	4242	n = GET_FATTIME(); /* Use current time as VSN */
AlexVC97	0:3bdfc1556537	4243	if (fmt == FS_FAT32) {
AlexVC97	0:3bdfc1556537	4244	ST_DWORD(tbl + BS_VolID32, n); /* VSN */
AlexVC97	0:3bdfc1556537	4245	ST_DWORD(tbl + BPB_FATSz32, n_fat); /* Number of sectors per FAT */
AlexVC97	0:3bdfc1556537	4246	ST_DWORD(tbl + BPB_RootClus, 2); /* Root directory start cluster (2) */
AlexVC97	0:3bdfc1556537	4247	ST_WORD(tbl + BPB_FSInfo, 1); /* FSINFO record offset (VBR + 1) */
AlexVC97	0:3bdfc1556537	4248	ST_WORD(tbl + BPB_BkBootSec, 6); /* Backup boot record offset (VBR + 6) */
AlexVC97	0:3bdfc1556537	4249	tbl[BS_DrvNum32] = 0x80; /* Drive number */
AlexVC97	0:3bdfc1556537	4250	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
AlexVC97	0:3bdfc1556537	4251	mem_cpy(tbl + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
AlexVC97	0:3bdfc1556537	4252	} else {
AlexVC97	0:3bdfc1556537	4253	ST_DWORD(tbl + BS_VolID, n); /* VSN */
AlexVC97	0:3bdfc1556537	4254	ST_WORD(tbl + BPB_FATSz16, n_fat); /* Number of sectors per FAT */
AlexVC97	0:3bdfc1556537	4255	tbl[BS_DrvNum] = 0x80; /* Drive number */
AlexVC97	0:3bdfc1556537	4256	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
AlexVC97	0:3bdfc1556537	4257	mem_cpy(tbl + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
AlexVC97	0:3bdfc1556537	4258	}
AlexVC97	0:3bdfc1556537	4259	ST_WORD(tbl + BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
AlexVC97	0:3bdfc1556537	4260	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
AlexVC97	0:3bdfc1556537	4261	return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	4262	if (fmt == FS_FAT32) /* Write it to the backup VBR if needed (VBR + 6) */
AlexVC97	0:3bdfc1556537	4263	disk_write(pdrv, tbl, b_vol + 6, 1);
AlexVC97	0:3bdfc1556537	4264
AlexVC97	0:3bdfc1556537	4265	/* Initialize FAT area */
AlexVC97	0:3bdfc1556537	4266	wsect = b_fat;
AlexVC97	0:3bdfc1556537	4267	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
AlexVC97	0:3bdfc1556537	4268	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
AlexVC97	0:3bdfc1556537	4269	n = md; /* Media descriptor byte */
AlexVC97	0:3bdfc1556537	4270	if (fmt != FS_FAT32) {
AlexVC97	0:3bdfc1556537	4271	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
AlexVC97	0:3bdfc1556537	4272	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT12/16) */
AlexVC97	0:3bdfc1556537	4273	} else {
AlexVC97	0:3bdfc1556537	4274	n \|= 0xFFFFFF00;
AlexVC97	0:3bdfc1556537	4275	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT32) */
AlexVC97	0:3bdfc1556537	4276	ST_DWORD(tbl + 4, 0xFFFFFFFF);
AlexVC97	0:3bdfc1556537	4277	ST_DWORD(tbl + 8, 0x0FFFFFFF); /* Reserve cluster #2 for root directory */
AlexVC97	0:3bdfc1556537	4278	}
AlexVC97	0:3bdfc1556537	4279	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
AlexVC97	0:3bdfc1556537	4280	return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	4281	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
AlexVC97	0:3bdfc1556537	4282	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
AlexVC97	0:3bdfc1556537	4283	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
AlexVC97	0:3bdfc1556537	4284	return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	4285	}
AlexVC97	0:3bdfc1556537	4286	}
AlexVC97	0:3bdfc1556537	4287
AlexVC97	0:3bdfc1556537	4288	/* Initialize root directory */
AlexVC97	0:3bdfc1556537	4289	i = (fmt == FS_FAT32) ? au : (UINT)n_dir;
AlexVC97	0:3bdfc1556537	4290	do {
AlexVC97	0:3bdfc1556537	4291	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
AlexVC97	0:3bdfc1556537	4292	return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	4293	} while (--i);
AlexVC97	0:3bdfc1556537	4294
AlexVC97	0:3bdfc1556537	4295	#if _USE_TRIM /* Erase data area if needed */
AlexVC97	0:3bdfc1556537	4296	{
AlexVC97	0:3bdfc1556537	4297	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
AlexVC97	0:3bdfc1556537	4298	disk_ioctl(pdrv, CTRL_TRIM, eb);
AlexVC97	0:3bdfc1556537	4299	}
AlexVC97	0:3bdfc1556537	4300	#endif
AlexVC97	0:3bdfc1556537	4301
AlexVC97	0:3bdfc1556537	4302	/* Create FSINFO if needed */
AlexVC97	0:3bdfc1556537	4303	if (fmt == FS_FAT32) {
AlexVC97	0:3bdfc1556537	4304	ST_DWORD(tbl + FSI_LeadSig, 0x41615252);
AlexVC97	0:3bdfc1556537	4305	ST_DWORD(tbl + FSI_StrucSig, 0x61417272);
AlexVC97	0:3bdfc1556537	4306	ST_DWORD(tbl + FSI_Free_Count, n_clst - 1); /* Number of free clusters */
AlexVC97	0:3bdfc1556537	4307	ST_DWORD(tbl + FSI_Nxt_Free, 2); /* Last allocated cluster# */
AlexVC97	0:3bdfc1556537	4308	ST_WORD(tbl + BS_55AA, 0xAA55);
AlexVC97	0:3bdfc1556537	4309	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR + 1) */
AlexVC97	0:3bdfc1556537	4310	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR + 7) */
AlexVC97	0:3bdfc1556537	4311	}
AlexVC97	0:3bdfc1556537	4312
AlexVC97	0:3bdfc1556537	4313	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	4314	}
AlexVC97	0:3bdfc1556537	4315
AlexVC97	0:3bdfc1556537	4316
AlexVC97	0:3bdfc1556537	4317
AlexVC97	0:3bdfc1556537	4318	#if _MULTI_PARTITION
AlexVC97	0:3bdfc1556537	4319	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4320	/* Create partition table on the physical drive */
AlexVC97	0:3bdfc1556537	4321	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4322
AlexVC97	0:3bdfc1556537	4323	FRESULT f_fdisk (
AlexVC97	0:3bdfc1556537	4324	BYTE pdrv, /* Physical drive number */
AlexVC97	0:3bdfc1556537	4325	const DWORD szt[], /* Pointer to the size table for each partitions */
AlexVC97	0:3bdfc1556537	4326	void* work /* Pointer to the working buffer */
AlexVC97	0:3bdfc1556537	4327	)
AlexVC97	0:3bdfc1556537	4328	{
AlexVC97	0:3bdfc1556537	4329	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
AlexVC97	0:3bdfc1556537	4330	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
AlexVC97	0:3bdfc1556537	4331	DSTATUS stat;
AlexVC97	0:3bdfc1556537	4332	DWORD sz_disk, sz_part, s_part;
AlexVC97	0:3bdfc1556537	4333
AlexVC97	0:3bdfc1556537	4334
AlexVC97	0:3bdfc1556537	4335	stat = disk_initialize(pdrv);
AlexVC97	0:3bdfc1556537	4336	if (stat & STA_NOINIT) return FR_NOT_READY;
AlexVC97	0:3bdfc1556537	4337	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
AlexVC97	0:3bdfc1556537	4338	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
AlexVC97	0:3bdfc1556537	4339
AlexVC97	0:3bdfc1556537	4340	/* Determine CHS in the table regardless of the drive geometry */
AlexVC97	0:3bdfc1556537	4341	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
AlexVC97	0:3bdfc1556537	4342	if (n == 256) n--;
AlexVC97	0:3bdfc1556537	4343	e_hd = n - 1;
AlexVC97	0:3bdfc1556537	4344	sz_cyl = 63 * n;
AlexVC97	0:3bdfc1556537	4345	tot_cyl = sz_disk / sz_cyl;
AlexVC97	0:3bdfc1556537	4346
AlexVC97	0:3bdfc1556537	4347	/* Create partition table */
AlexVC97	0:3bdfc1556537	4348	mem_set(buf, 0, _MAX_SS);
AlexVC97	0:3bdfc1556537	4349	p = buf + MBR_Table; b_cyl = 0;
AlexVC97	0:3bdfc1556537	4350	for (i = 0; i < 4; i++, p += SZ_PTE) {
AlexVC97	0:3bdfc1556537	4351	p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
AlexVC97	0:3bdfc1556537	4352	if (!p_cyl) continue;
AlexVC97	0:3bdfc1556537	4353	s_part = (DWORD)sz_cyl * b_cyl;
AlexVC97	0:3bdfc1556537	4354	sz_part = (DWORD)sz_cyl * p_cyl;
AlexVC97	0:3bdfc1556537	4355	if (i == 0) { /* Exclude first track of cylinder 0 */
AlexVC97	0:3bdfc1556537	4356	s_hd = 1;
AlexVC97	0:3bdfc1556537	4357	s_part += 63; sz_part -= 63;
AlexVC97	0:3bdfc1556537	4358	} else {
AlexVC97	0:3bdfc1556537	4359	s_hd = 0;
AlexVC97	0:3bdfc1556537	4360	}
AlexVC97	0:3bdfc1556537	4361	e_cyl = b_cyl + p_cyl - 1;
AlexVC97	0:3bdfc1556537	4362	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
AlexVC97	0:3bdfc1556537	4363
AlexVC97	0:3bdfc1556537	4364	/* Set partition table */
AlexVC97	0:3bdfc1556537	4365	p[1] = s_hd; /* Start head */
AlexVC97	0:3bdfc1556537	4366	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
AlexVC97	0:3bdfc1556537	4367	p[3] = (BYTE)b_cyl; /* Start cylinder */
AlexVC97	0:3bdfc1556537	4368	p[4] = 0x06; /* System type (temporary setting) */
AlexVC97	0:3bdfc1556537	4369	p[5] = e_hd; /* End head */
AlexVC97	0:3bdfc1556537	4370	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
AlexVC97	0:3bdfc1556537	4371	p[7] = (BYTE)e_cyl; /* End cylinder */
AlexVC97	0:3bdfc1556537	4372	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
AlexVC97	0:3bdfc1556537	4373	ST_DWORD(p + 12, sz_part); /* Partition size */
AlexVC97	0:3bdfc1556537	4374
AlexVC97	0:3bdfc1556537	4375	/* Next partition */
AlexVC97	0:3bdfc1556537	4376	b_cyl += p_cyl;
AlexVC97	0:3bdfc1556537	4377	}
AlexVC97	0:3bdfc1556537	4378	ST_WORD(p, 0xAA55);
AlexVC97	0:3bdfc1556537	4379
AlexVC97	0:3bdfc1556537	4380	/* Write it to the MBR */
AlexVC97	0:3bdfc1556537	4381	return (disk_write(pdrv, buf, 0, 1) != RES_OK \|\| disk_ioctl(pdrv, CTRL_SYNC, 0) != RES_OK) ? FR_DISK_ERR : FR_OK;
AlexVC97	0:3bdfc1556537	4382	}
AlexVC97	0:3bdfc1556537	4383
AlexVC97	0:3bdfc1556537	4384
AlexVC97	0:3bdfc1556537	4385	#endif /* _MULTI_PARTITION */
AlexVC97	0:3bdfc1556537	4386	#endif /* _USE_MKFS && !_FS_READONLY */
AlexVC97	0:3bdfc1556537	4387
AlexVC97	0:3bdfc1556537	4388
AlexVC97	0:3bdfc1556537	4389
AlexVC97	0:3bdfc1556537	4390
AlexVC97	0:3bdfc1556537	4391	#if _USE_STRFUNC
AlexVC97	0:3bdfc1556537	4392	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4393	/* Get a string from the file */
AlexVC97	0:3bdfc1556537	4394	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4395
AlexVC97	0:3bdfc1556537	4396	TCHAR* f_gets (
AlexVC97	0:3bdfc1556537	4397	TCHAR* buff, /* Pointer to the string buffer to read */
AlexVC97	0:3bdfc1556537	4398	int len, /* Size of string buffer (characters) */
AlexVC97	0:3bdfc1556537	4399	FIL* fp /* Pointer to the file object */
AlexVC97	0:3bdfc1556537	4400	)
AlexVC97	0:3bdfc1556537	4401	{
AlexVC97	0:3bdfc1556537	4402	int n = 0;
AlexVC97	0:3bdfc1556537	4403	TCHAR c, *p = buff;
AlexVC97	0:3bdfc1556537	4404	BYTE s[2];
AlexVC97	0:3bdfc1556537	4405	UINT rc;
AlexVC97	0:3bdfc1556537	4406
AlexVC97	0:3bdfc1556537	4407
AlexVC97	0:3bdfc1556537	4408	while (n < len - 1) { /* Read characters until buffer gets filled */
AlexVC97	0:3bdfc1556537	4409	#if _USE_LFN && _LFN_UNICODE
AlexVC97	0:3bdfc1556537	4410	#if _STRF_ENCODE == 3 /* Read a character in UTF-8 */
AlexVC97	0:3bdfc1556537	4411	f_read(fp, s, 1, &rc);
AlexVC97	0:3bdfc1556537	4412	if (rc != 1) break;
AlexVC97	0:3bdfc1556537	4413	c = s[0];
AlexVC97	0:3bdfc1556537	4414	if (c >= 0x80) {
AlexVC97	0:3bdfc1556537	4415	if (c < 0xC0) continue; /* Skip stray trailer */
AlexVC97	0:3bdfc1556537	4416	if (c < 0xE0) { /* Two-byte sequence */
AlexVC97	0:3bdfc1556537	4417	f_read(fp, s, 1, &rc);
AlexVC97	0:3bdfc1556537	4418	if (rc != 1) break;
AlexVC97	0:3bdfc1556537	4419	c = (c & 0x1F) << 6 \| (s[0] & 0x3F);
AlexVC97	0:3bdfc1556537	4420	if (c < 0x80) c = '?';
AlexVC97	0:3bdfc1556537	4421	} else {
AlexVC97	0:3bdfc1556537	4422	if (c < 0xF0) { /* Three-byte sequence */
AlexVC97	0:3bdfc1556537	4423	f_read(fp, s, 2, &rc);
AlexVC97	0:3bdfc1556537	4424	if (rc != 2) break;
AlexVC97	0:3bdfc1556537	4425	c = c << 12 \| (s[0] & 0x3F) << 6 \| (s[1] & 0x3F);
AlexVC97	0:3bdfc1556537	4426	if (c < 0x800) c = '?';
AlexVC97	0:3bdfc1556537	4427	} else { /* Reject four-byte sequence */
AlexVC97	0:3bdfc1556537	4428	c = '?';
AlexVC97	0:3bdfc1556537	4429	}
AlexVC97	0:3bdfc1556537	4430	}
AlexVC97	0:3bdfc1556537	4431	}
AlexVC97	0:3bdfc1556537	4432	#elif _STRF_ENCODE == 2 /* Read a character in UTF-16BE */
AlexVC97	0:3bdfc1556537	4433	f_read(fp, s, 2, &rc);
AlexVC97	0:3bdfc1556537	4434	if (rc != 2) break;
AlexVC97	0:3bdfc1556537	4435	c = s[1] + (s[0] << 8);
AlexVC97	0:3bdfc1556537	4436	#elif _STRF_ENCODE == 1 /* Read a character in UTF-16LE */
AlexVC97	0:3bdfc1556537	4437	f_read(fp, s, 2, &rc);
AlexVC97	0:3bdfc1556537	4438	if (rc != 2) break;
AlexVC97	0:3bdfc1556537	4439	c = s[0] + (s[1] << 8);
AlexVC97	0:3bdfc1556537	4440	#else /* Read a character in ANSI/OEM */
AlexVC97	0:3bdfc1556537	4441	f_read(fp, s, 1, &rc);
AlexVC97	0:3bdfc1556537	4442	if (rc != 1) break;
AlexVC97	0:3bdfc1556537	4443	c = s[0];
AlexVC97	0:3bdfc1556537	4444	if (IsDBCS1(c)) {
AlexVC97	0:3bdfc1556537	4445	f_read(fp, s, 1, &rc);
AlexVC97	0:3bdfc1556537	4446	if (rc != 1) break;
AlexVC97	0:3bdfc1556537	4447	c = (c << 8) + s[0];
AlexVC97	0:3bdfc1556537	4448	}
AlexVC97	0:3bdfc1556537	4449	c = ff_convert(c, 1); /* OEM -> Unicode */
AlexVC97	0:3bdfc1556537	4450	if (!c) c = '?';
AlexVC97	0:3bdfc1556537	4451	#endif
AlexVC97	0:3bdfc1556537	4452	#else /* Read a character without conversion */
AlexVC97	0:3bdfc1556537	4453	f_read(fp, s, 1, &rc);
AlexVC97	0:3bdfc1556537	4454	if (rc != 1) break;
AlexVC97	0:3bdfc1556537	4455	c = s[0];
AlexVC97	0:3bdfc1556537	4456	#endif
AlexVC97	0:3bdfc1556537	4457	if (_USE_STRFUNC == 2 && c == '\r') continue; /* Strip '\r' */
AlexVC97	0:3bdfc1556537	4458	*p++ = c;
AlexVC97	0:3bdfc1556537	4459	n++;
AlexVC97	0:3bdfc1556537	4460	if (c == '\n') break; /* Break on EOL */
AlexVC97	0:3bdfc1556537	4461	}
AlexVC97	0:3bdfc1556537	4462	*p = 0;
AlexVC97	0:3bdfc1556537	4463	return n ? buff : 0; /* When no data read (eof or error), return with error. */
AlexVC97	0:3bdfc1556537	4464	}
AlexVC97	0:3bdfc1556537	4465
AlexVC97	0:3bdfc1556537	4466
AlexVC97	0:3bdfc1556537	4467
AlexVC97	0:3bdfc1556537	4468
AlexVC97	0:3bdfc1556537	4469	#if !_FS_READONLY
AlexVC97	0:3bdfc1556537	4470	#include <stdarg.h>
AlexVC97	0:3bdfc1556537	4471	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4472	/* Put a character to the file */
AlexVC97	0:3bdfc1556537	4473	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4474
AlexVC97	0:3bdfc1556537	4475	typedef struct {
AlexVC97	0:3bdfc1556537	4476	FIL* fp;
AlexVC97	0:3bdfc1556537	4477	int idx, nchr;
AlexVC97	0:3bdfc1556537	4478	BYTE buf[64];
AlexVC97	0:3bdfc1556537	4479	} putbuff;
AlexVC97	0:3bdfc1556537	4480
AlexVC97	0:3bdfc1556537	4481
AlexVC97	0:3bdfc1556537	4482	static
AlexVC97	0:3bdfc1556537	4483	void putc_bfd (
AlexVC97	0:3bdfc1556537	4484	putbuff* pb,
AlexVC97	0:3bdfc1556537	4485	TCHAR c
AlexVC97	0:3bdfc1556537	4486	)
AlexVC97	0:3bdfc1556537	4487	{
AlexVC97	0:3bdfc1556537	4488	UINT bw;
AlexVC97	0:3bdfc1556537	4489	int i;
AlexVC97	0:3bdfc1556537	4490
AlexVC97	0:3bdfc1556537	4491
AlexVC97	0:3bdfc1556537	4492	if (_USE_STRFUNC == 2 && c == '\n') /* LF -> CRLF conversion */
AlexVC97	0:3bdfc1556537	4493	putc_bfd(pb, '\r');
AlexVC97	0:3bdfc1556537	4494
AlexVC97	0:3bdfc1556537	4495	i = pb->idx; /* Buffer write index (-1:error) */
AlexVC97	0:3bdfc1556537	4496	if (i < 0) return;
AlexVC97	0:3bdfc1556537	4497
AlexVC97	0:3bdfc1556537	4498	#if _USE_LFN && _LFN_UNICODE
AlexVC97	0:3bdfc1556537	4499	#if _STRF_ENCODE == 3 /* Write a character in UTF-8 */
AlexVC97	0:3bdfc1556537	4500	if (c < 0x80) { /* 7-bit */
AlexVC97	0:3bdfc1556537	4501	pb->buf[i++] = (BYTE)c;
AlexVC97	0:3bdfc1556537	4502	} else {
AlexVC97	0:3bdfc1556537	4503	if (c < 0x800) { /* 11-bit */
AlexVC97	0:3bdfc1556537	4504	pb->buf[i++] = (BYTE)(0xC0 \| c >> 6);
AlexVC97	0:3bdfc1556537	4505	} else { /* 16-bit */
AlexVC97	0:3bdfc1556537	4506	pb->buf[i++] = (BYTE)(0xE0 \| c >> 12);
AlexVC97	0:3bdfc1556537	4507	pb->buf[i++] = (BYTE)(0x80 \| (c >> 6 & 0x3F));
AlexVC97	0:3bdfc1556537	4508	}
AlexVC97	0:3bdfc1556537	4509	pb->buf[i++] = (BYTE)(0x80 \| (c & 0x3F));
AlexVC97	0:3bdfc1556537	4510	}
AlexVC97	0:3bdfc1556537	4511	#elif _STRF_ENCODE == 2 /* Write a character in UTF-16BE */
AlexVC97	0:3bdfc1556537	4512	pb->buf[i++] = (BYTE)(c >> 8);
AlexVC97	0:3bdfc1556537	4513	pb->buf[i++] = (BYTE)c;
AlexVC97	0:3bdfc1556537	4514	#elif _STRF_ENCODE == 1 /* Write a character in UTF-16LE */
AlexVC97	0:3bdfc1556537	4515	pb->buf[i++] = (BYTE)c;
AlexVC97	0:3bdfc1556537	4516	pb->buf[i++] = (BYTE)(c >> 8);
AlexVC97	0:3bdfc1556537	4517	#else /* Write a character in ANSI/OEM */
AlexVC97	0:3bdfc1556537	4518	c = ff_convert(c, 0); /* Unicode -> OEM */
AlexVC97	0:3bdfc1556537	4519	if (!c) c = '?';
AlexVC97	0:3bdfc1556537	4520	if (c >= 0x100)
AlexVC97	0:3bdfc1556537	4521	pb->buf[i++] = (BYTE)(c >> 8);
AlexVC97	0:3bdfc1556537	4522	pb->buf[i++] = (BYTE)c;
AlexVC97	0:3bdfc1556537	4523	#endif
AlexVC97	0:3bdfc1556537	4524	#else /* Write a character without conversion */
AlexVC97	0:3bdfc1556537	4525	pb->buf[i++] = (BYTE)c;
AlexVC97	0:3bdfc1556537	4526	#endif
AlexVC97	0:3bdfc1556537	4527
AlexVC97	0:3bdfc1556537	4528	if (i >= (int)(sizeof pb->buf) - 3) { /* Write buffered characters to the file */
AlexVC97	0:3bdfc1556537	4529	f_write(pb->fp, pb->buf, (UINT)i, &bw);
AlexVC97	0:3bdfc1556537	4530	i = (bw == (UINT)i) ? 0 : -1;
AlexVC97	0:3bdfc1556537	4531	}
AlexVC97	0:3bdfc1556537	4532	pb->idx = i;
AlexVC97	0:3bdfc1556537	4533	pb->nchr++;
AlexVC97	0:3bdfc1556537	4534	}
AlexVC97	0:3bdfc1556537	4535
AlexVC97	0:3bdfc1556537	4536
AlexVC97	0:3bdfc1556537	4537
AlexVC97	0:3bdfc1556537	4538	int f_putc (
AlexVC97	0:3bdfc1556537	4539	TCHAR c, /* A character to be output */
AlexVC97	0:3bdfc1556537	4540	FIL* fp /* Pointer to the file object */
AlexVC97	0:3bdfc1556537	4541	)
AlexVC97	0:3bdfc1556537	4542	{
AlexVC97	0:3bdfc1556537	4543	putbuff pb;
AlexVC97	0:3bdfc1556537	4544	UINT nw;
AlexVC97	0:3bdfc1556537	4545
AlexVC97	0:3bdfc1556537	4546
AlexVC97	0:3bdfc1556537	4547	pb.fp = fp; /* Initialize output buffer */
AlexVC97	0:3bdfc1556537	4548	pb.nchr = pb.idx = 0;
AlexVC97	0:3bdfc1556537	4549
AlexVC97	0:3bdfc1556537	4550	putc_bfd(&pb, c); /* Put a character */
AlexVC97	0:3bdfc1556537	4551
AlexVC97	0:3bdfc1556537	4552	if ( pb.idx >= 0 /* Flush buffered characters to the file */
AlexVC97	0:3bdfc1556537	4553	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
AlexVC97	0:3bdfc1556537	4554	&& (UINT)pb.idx == nw) return pb.nchr;
AlexVC97	0:3bdfc1556537	4555	return EOF;
AlexVC97	0:3bdfc1556537	4556	}
AlexVC97	0:3bdfc1556537	4557
AlexVC97	0:3bdfc1556537	4558
AlexVC97	0:3bdfc1556537	4559
AlexVC97	0:3bdfc1556537	4560
AlexVC97	0:3bdfc1556537	4561	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4562	/* Put a string to the file */
AlexVC97	0:3bdfc1556537	4563	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4564
AlexVC97	0:3bdfc1556537	4565	int f_puts (
AlexVC97	0:3bdfc1556537	4566	const TCHAR* str, /* Pointer to the string to be output */
AlexVC97	0:3bdfc1556537	4567	FIL* fp /* Pointer to the file object */
AlexVC97	0:3bdfc1556537	4568	)
AlexVC97	0:3bdfc1556537	4569	{
AlexVC97	0:3bdfc1556537	4570	putbuff pb;
AlexVC97	0:3bdfc1556537	4571	UINT nw;
AlexVC97	0:3bdfc1556537	4572
AlexVC97	0:3bdfc1556537	4573
AlexVC97	0:3bdfc1556537	4574	pb.fp = fp; /* Initialize output buffer */
AlexVC97	0:3bdfc1556537	4575	pb.nchr = pb.idx = 0;
AlexVC97	0:3bdfc1556537	4576
AlexVC97	0:3bdfc1556537	4577	while (str) / Put the string */
AlexVC97	0:3bdfc1556537	4578	putc_bfd(&pb, *str++);
AlexVC97	0:3bdfc1556537	4579
AlexVC97	0:3bdfc1556537	4580	if ( pb.idx >= 0 /* Flush buffered characters to the file */
AlexVC97	0:3bdfc1556537	4581	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
AlexVC97	0:3bdfc1556537	4582	&& (UINT)pb.idx == nw) return pb.nchr;
AlexVC97	0:3bdfc1556537	4583	return EOF;
AlexVC97	0:3bdfc1556537	4584	}
AlexVC97	0:3bdfc1556537	4585
AlexVC97	0:3bdfc1556537	4586
AlexVC97	0:3bdfc1556537	4587
AlexVC97	0:3bdfc1556537	4588
AlexVC97	0:3bdfc1556537	4589	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4590	/* Put a formatted string to the file */
AlexVC97	0:3bdfc1556537	4591	/-----------------------------------------------------------------------/
AlexVC97	0:3bdfc1556537	4592
AlexVC97	0:3bdfc1556537	4593	int f_printf (
AlexVC97	0:3bdfc1556537	4594	FIL* fp, /* Pointer to the file object */
AlexVC97	0:3bdfc1556537	4595	const TCHAR* fmt, /* Pointer to the format string */
AlexVC97	0:3bdfc1556537	4596	... /* Optional arguments... */
AlexVC97	0:3bdfc1556537	4597	)
AlexVC97	0:3bdfc1556537	4598	{
AlexVC97	0:3bdfc1556537	4599	va_list arp;
AlexVC97	0:3bdfc1556537	4600	BYTE f, r;
AlexVC97	0:3bdfc1556537	4601	UINT nw, i, j, w;
AlexVC97	0:3bdfc1556537	4602	DWORD v;
AlexVC97	0:3bdfc1556537	4603	TCHAR c, d, s[16], *p;
AlexVC97	0:3bdfc1556537	4604	putbuff pb;
AlexVC97	0:3bdfc1556537	4605
AlexVC97	0:3bdfc1556537	4606
AlexVC97	0:3bdfc1556537	4607	pb.fp = fp; /* Initialize output buffer */
AlexVC97	0:3bdfc1556537	4608	pb.nchr = pb.idx = 0;
AlexVC97	0:3bdfc1556537	4609
AlexVC97	0:3bdfc1556537	4610	va_start(arp, fmt);
AlexVC97	0:3bdfc1556537	4611
AlexVC97	0:3bdfc1556537	4612	for (;;) {
AlexVC97	0:3bdfc1556537	4613	c = *fmt++;
AlexVC97	0:3bdfc1556537	4614	if (c == 0) break; /* End of string */
AlexVC97	0:3bdfc1556537	4615	if (c != '%') { /* Non escape character */
AlexVC97	0:3bdfc1556537	4616	putc_bfd(&pb, c);
AlexVC97	0:3bdfc1556537	4617	continue;
AlexVC97	0:3bdfc1556537	4618	}
AlexVC97	0:3bdfc1556537	4619	w = f = 0;
AlexVC97	0:3bdfc1556537	4620	c = *fmt++;
AlexVC97	0:3bdfc1556537	4621	if (c == '0') { /* Flag: '0' padding */
AlexVC97	0:3bdfc1556537	4622	f = 1; c = *fmt++;
AlexVC97	0:3bdfc1556537	4623	} else {
AlexVC97	0:3bdfc1556537	4624	if (c == '-') { /* Flag: left justified */
AlexVC97	0:3bdfc1556537	4625	f = 2; c = *fmt++;
AlexVC97	0:3bdfc1556537	4626	}
AlexVC97	0:3bdfc1556537	4627	}
AlexVC97	0:3bdfc1556537	4628	while (IsDigit(c)) { /* Precision */
AlexVC97	0:3bdfc1556537	4629	w = w * 10 + c - '0';
AlexVC97	0:3bdfc1556537	4630	c = *fmt++;
AlexVC97	0:3bdfc1556537	4631	}
AlexVC97	0:3bdfc1556537	4632	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
AlexVC97	0:3bdfc1556537	4633	f \|= 4; c = *fmt++;
AlexVC97	0:3bdfc1556537	4634	}
AlexVC97	0:3bdfc1556537	4635	if (!c) break;
AlexVC97	0:3bdfc1556537	4636	d = c;
AlexVC97	0:3bdfc1556537	4637	if (IsLower(d)) d -= 0x20;
AlexVC97	0:3bdfc1556537	4638	switch (d) { /* Type is... */
AlexVC97	0:3bdfc1556537	4639	case 'S' : /* String */
AlexVC97	0:3bdfc1556537	4640	p = va_arg(arp, TCHAR*);
AlexVC97	0:3bdfc1556537	4641	for (j = 0; p[j]; j++) ;
AlexVC97	0:3bdfc1556537	4642	if (!(f & 2)) {
AlexVC97	0:3bdfc1556537	4643	while (j++ < w) putc_bfd(&pb, ' ');
AlexVC97	0:3bdfc1556537	4644	}
AlexVC97	0:3bdfc1556537	4645	while (p) putc_bfd(&pb, p++);
AlexVC97	0:3bdfc1556537	4646	while (j++ < w) putc_bfd(&pb, ' ');
AlexVC97	0:3bdfc1556537	4647	continue;
AlexVC97	0:3bdfc1556537	4648	case 'C' : /* Character */
AlexVC97	0:3bdfc1556537	4649	putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue;
AlexVC97	0:3bdfc1556537	4650	case 'B' : /* Binary */
AlexVC97	0:3bdfc1556537	4651	r = 2; break;
AlexVC97	0:3bdfc1556537	4652	case 'O' : /* Octal */
AlexVC97	0:3bdfc1556537	4653	r = 8; break;
AlexVC97	0:3bdfc1556537	4654	case 'D' : /* Signed decimal */
AlexVC97	0:3bdfc1556537	4655	case 'U' : /* Unsigned decimal */
AlexVC97	0:3bdfc1556537	4656	r = 10; break;
AlexVC97	0:3bdfc1556537	4657	case 'X' : /* Hexdecimal */
AlexVC97	0:3bdfc1556537	4658	r = 16; break;
AlexVC97	0:3bdfc1556537	4659	default: /* Unknown type (pass-through) */
AlexVC97	0:3bdfc1556537	4660	putc_bfd(&pb, c); continue;
AlexVC97	0:3bdfc1556537	4661	}
AlexVC97	0:3bdfc1556537	4662
AlexVC97	0:3bdfc1556537	4663	/* Get an argument and put it in numeral */
AlexVC97	0:3bdfc1556537	4664	v = (f & 4) ? (DWORD)va_arg(arp, long) : ((d == 'D') ? (DWORD)(long)va_arg(arp, int) : (DWORD)va_arg(arp, unsigned int));
AlexVC97	0:3bdfc1556537	4665	if (d == 'D' && (v & 0x80000000)) {
AlexVC97	0:3bdfc1556537	4666	v = 0 - v;
AlexVC97	0:3bdfc1556537	4667	f \|= 8;
AlexVC97	0:3bdfc1556537	4668	}
AlexVC97	0:3bdfc1556537	4669	i = 0;
AlexVC97	0:3bdfc1556537	4670	do {
AlexVC97	0:3bdfc1556537	4671	d = (TCHAR)(v % r); v /= r;
AlexVC97	0:3bdfc1556537	4672	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
AlexVC97	0:3bdfc1556537	4673	s[i++] = d + '0';
AlexVC97	0:3bdfc1556537	4674	} while (v && i < sizeof s / sizeof s[0]);
AlexVC97	0:3bdfc1556537	4675	if (f & 8) s[i++] = '-';
AlexVC97	0:3bdfc1556537	4676	j = i; d = (f & 1) ? '0' : ' ';
AlexVC97	0:3bdfc1556537	4677	while (!(f & 2) && j++ < w) putc_bfd(&pb, d);
AlexVC97	0:3bdfc1556537	4678	do putc_bfd(&pb, s[--i]); while (i);
AlexVC97	0:3bdfc1556537	4679	while (j++ < w) putc_bfd(&pb, d);
AlexVC97	0:3bdfc1556537	4680	}
AlexVC97	0:3bdfc1556537	4681
AlexVC97	0:3bdfc1556537	4682	va_end(arp);
AlexVC97	0:3bdfc1556537	4683
AlexVC97	0:3bdfc1556537	4684	if ( pb.idx >= 0 /* Flush buffered characters to the file */
AlexVC97	0:3bdfc1556537	4685	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
AlexVC97	0:3bdfc1556537	4686	&& (UINT)pb.idx == nw) return pb.nchr;
AlexVC97	0:3bdfc1556537	4687	return EOF;
AlexVC97	0:3bdfc1556537	4688	}
AlexVC97	0:3bdfc1556537	4689
AlexVC97	0:3bdfc1556537	4690	#endif /* !_FS_READONLY */
AlexVC97	0:3bdfc1556537	4691	#endif /* _USE_STRFUNC */

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Type:	Library
Created:	29 Mar 2017
Imports:	794
Forks:	1
Commits:	1
Dependents:	6
Dependencies:	0
Followers:	9

FATFileSystem/ChaN/ff.cpp@0:3bdfc1556537, 2017-03-29 (annotated)

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