IJFW_firmware - IJFW - IchigoJamのBASICプログラムをメモリカード（MMCまたは互換カード）に保…

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oaks oks486 / Mbed 2 deprecated IJFW_firmware

IJFW - IchigoJamのBASICプログラムをメモリカード（MMCまたは互換カード）に保存したり読み出したりできるプログラム。メモリカードにファームウェアのファイルを置くだけで、電源ON時に自動的に書き換える機能も搭載（一応こちらがメイン）。LPC1114FN28専用。

Dependencies: mbed

参考URL http://www.cyberchabudai.org/index.php/entry?tag=IJFW

FatfsIJFW/ff.c@2:daf6c4719496, 2016-08-21 (annotated)

Committer:: oks486
Date:: Sun Aug 21 07:51:01 2016 +0000
Revision:: 2:daf6c4719496
Parent:: 0:43cce7b453d0

Modified I2c2mem for "FILES" command

Who changed what in which revision?

User	Revision	Line number	New contents of line
oks486	0:43cce7b453d0	1	/*----------------------------------------------------------------------------/
oks486	0:43cce7b453d0	2	/ FatFs - FAT file system module R0.11a (C)ChaN, 2015 /
oks486	0:43cce7b453d0	3	/-----------------------------------------------------------------------------/
oks486	0:43cce7b453d0	4	/ FatFs module is a free software that opened under license policy of
oks486	0:43cce7b453d0	5	/ following conditions.
oks486	0:43cce7b453d0	6	/
oks486	0:43cce7b453d0	7	/ Copyright (C) 2015, ChaN, all right reserved.
oks486	0:43cce7b453d0	8	/
oks486	0:43cce7b453d0	9	/ 1. Redistributions of source code must retain the above copyright notice,
oks486	0:43cce7b453d0	10	/ this condition and the following disclaimer.
oks486	0:43cce7b453d0	11	/
oks486	0:43cce7b453d0	12	/ This software is provided by the copyright holder and contributors "AS IS"
oks486	0:43cce7b453d0	13	/ and any warranties related to this software are DISCLAIMED.
oks486	0:43cce7b453d0	14	/ The copyright owner or contributors be NOT LIABLE for any damages caused
oks486	0:43cce7b453d0	15	/ by use of this software.
oks486	0:43cce7b453d0	16	/----------------------------------------------------------------------------*/
oks486	0:43cce7b453d0	17
oks486	0:43cce7b453d0	18
oks486	0:43cce7b453d0	19	#include "ff.h" /* Declarations of FatFs API */
oks486	0:43cce7b453d0	20	#include "diskio.h" /* Declarations of disk I/O functions */
oks486	0:43cce7b453d0	21
oks486	0:43cce7b453d0	22
oks486	0:43cce7b453d0	23	/*--------------------------------------------------------------------------
oks486	0:43cce7b453d0	24
oks486	0:43cce7b453d0	25	Module Private Definitions
oks486	0:43cce7b453d0	26
oks486	0:43cce7b453d0	27	---------------------------------------------------------------------------*/
oks486	0:43cce7b453d0	28
oks486	0:43cce7b453d0	29	#if _FATFS != 64180 /* Revision ID */
oks486	0:43cce7b453d0	30	#error Wrong include file (ff.h).
oks486	0:43cce7b453d0	31	#endif
oks486	0:43cce7b453d0	32
oks486	0:43cce7b453d0	33
oks486	0:43cce7b453d0	34	/* Reentrancy related */
oks486	0:43cce7b453d0	35	#if _FS_REENTRANT
oks486	0:43cce7b453d0	36	#if _USE_LFN == 1
oks486	0:43cce7b453d0	37	#error Static LFN work area cannot be used at thread-safe configuration
oks486	0:43cce7b453d0	38	#endif
oks486	0:43cce7b453d0	39	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
oks486	0:43cce7b453d0	40	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
oks486	0:43cce7b453d0	41	#else
oks486	0:43cce7b453d0	42	#define ENTER_FF(fs)
oks486	0:43cce7b453d0	43	#define LEAVE_FF(fs, res) return res
oks486	0:43cce7b453d0	44	#endif
oks486	0:43cce7b453d0	45
oks486	0:43cce7b453d0	46	#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }
oks486	0:43cce7b453d0	47
oks486	0:43cce7b453d0	48
oks486	0:43cce7b453d0	49	/* Definitions of sector size */
oks486	0:43cce7b453d0	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)
oks486	0:43cce7b453d0	51	#error Wrong sector size configuration
oks486	0:43cce7b453d0	52	#endif
oks486	0:43cce7b453d0	53	#if _MAX_SS == _MIN_SS
oks486	0:43cce7b453d0	54	#define SS(fs) ((UINT)_MAX_SS) /* Fixed sector size */
oks486	0:43cce7b453d0	55	#else
oks486	0:43cce7b453d0	56	#define SS(fs) ((fs)->ssize) /* Variable sector size */
oks486	0:43cce7b453d0	57	#endif
oks486	0:43cce7b453d0	58
oks486	0:43cce7b453d0	59
oks486	0:43cce7b453d0	60	/* Timestamp feature */
oks486	0:43cce7b453d0	61	#if _FS_NORTC == 1
oks486	0:43cce7b453d0	62	#if _NORTC_YEAR < 1980 \|\| _NORTC_YEAR > 2107 \|\| _NORTC_MON < 1 \|\| _NORTC_MON > 12 \|\| _NORTC_MDAY < 1 \|\| _NORTC_MDAY > 31
oks486	0:43cce7b453d0	63	#error Invalid _FS_NORTC settings
oks486	0:43cce7b453d0	64	#endif
oks486	0:43cce7b453d0	65	#define GET_FATTIME() ((DWORD)(_NORTC_YEAR - 1980) << 25 \| (DWORD)_NORTC_MON << 21 \| (DWORD)_NORTC_MDAY << 16)
oks486	0:43cce7b453d0	66	#else
oks486	0:43cce7b453d0	67	#define GET_FATTIME() get_fattime()
oks486	0:43cce7b453d0	68	#endif
oks486	0:43cce7b453d0	69
oks486	0:43cce7b453d0	70
oks486	0:43cce7b453d0	71	/* File access control feature */
oks486	0:43cce7b453d0	72	#if _FS_LOCK
oks486	0:43cce7b453d0	73	#if _FS_READONLY
oks486	0:43cce7b453d0	74	#error _FS_LOCK must be 0 at read-only configuration
oks486	0:43cce7b453d0	75	#endif
oks486	0:43cce7b453d0	76	typedef struct {
oks486	0:43cce7b453d0	77	FATFS fs; / Object ID 1, volume (NULL:blank entry) */
oks486	0:43cce7b453d0	78	DWORD clu; /* Object ID 2, directory (0:root) */
oks486	0:43cce7b453d0	79	WORD idx; /* Object ID 3, directory index */
oks486	0:43cce7b453d0	80	WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */
oks486	0:43cce7b453d0	81	} FILESEM;
oks486	0:43cce7b453d0	82	#endif
oks486	0:43cce7b453d0	83
oks486	0:43cce7b453d0	84
oks486	0:43cce7b453d0	85
oks486	0:43cce7b453d0	86	/* DBCS code ranges and SBCS upper conversion tables */
oks486	0:43cce7b453d0	87
oks486	0:43cce7b453d0	88	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
oks486	0:43cce7b453d0	89	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
oks486	0:43cce7b453d0	90	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
oks486	0:43cce7b453d0	91	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
oks486	0:43cce7b453d0	92	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
oks486	0:43cce7b453d0	93	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
oks486	0:43cce7b453d0	94	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
oks486	0:43cce7b453d0	95	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
oks486	0:43cce7b453d0	96	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
oks486	0:43cce7b453d0	97
oks486	0:43cce7b453d0	98	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
oks486	0:43cce7b453d0	99	#define _DF1S 0x81
oks486	0:43cce7b453d0	100	#define _DF1E 0xFE
oks486	0:43cce7b453d0	101	#define _DS1S 0x40
oks486	0:43cce7b453d0	102	#define _DS1E 0x7E
oks486	0:43cce7b453d0	103	#define _DS2S 0x80
oks486	0:43cce7b453d0	104	#define _DS2E 0xFE
oks486	0:43cce7b453d0	105
oks486	0:43cce7b453d0	106	#elif _CODE_PAGE == 949 /* Korean */
oks486	0:43cce7b453d0	107	#define _DF1S 0x81
oks486	0:43cce7b453d0	108	#define _DF1E 0xFE
oks486	0:43cce7b453d0	109	#define _DS1S 0x41
oks486	0:43cce7b453d0	110	#define _DS1E 0x5A
oks486	0:43cce7b453d0	111	#define _DS2S 0x61
oks486	0:43cce7b453d0	112	#define _DS2E 0x7A
oks486	0:43cce7b453d0	113	#define _DS3S 0x81
oks486	0:43cce7b453d0	114	#define _DS3E 0xFE
oks486	0:43cce7b453d0	115
oks486	0:43cce7b453d0	116	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
oks486	0:43cce7b453d0	117	#define _DF1S 0x81
oks486	0:43cce7b453d0	118	#define _DF1E 0xFE
oks486	0:43cce7b453d0	119	#define _DS1S 0x40
oks486	0:43cce7b453d0	120	#define _DS1E 0x7E
oks486	0:43cce7b453d0	121	#define _DS2S 0xA1
oks486	0:43cce7b453d0	122	#define _DS2E 0xFE
oks486	0:43cce7b453d0	123
oks486	0:43cce7b453d0	124	#elif _CODE_PAGE == 437 /* U.S. */
oks486	0:43cce7b453d0	125	#define _DF1S 0
oks486	0:43cce7b453d0	126	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
oks486	0:43cce7b453d0	127	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
oks486	0:43cce7b453d0	128	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
oks486	0:43cce7b453d0	129	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	130	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	131	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
oks486	0:43cce7b453d0	132	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
oks486	0:43cce7b453d0	133	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	134
oks486	0:43cce7b453d0	135	#elif _CODE_PAGE == 720 /* Arabic */
oks486	0:43cce7b453d0	136	#define _DF1S 0
oks486	0:43cce7b453d0	137	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
oks486	0:43cce7b453d0	138	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
oks486	0:43cce7b453d0	139	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
oks486	0:43cce7b453d0	140	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	141	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	142	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
oks486	0:43cce7b453d0	143	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
oks486	0:43cce7b453d0	144	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	145
oks486	0:43cce7b453d0	146	#elif _CODE_PAGE == 737 /* Greek */
oks486	0:43cce7b453d0	147	#define _DF1S 0
oks486	0:43cce7b453d0	148	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
oks486	0:43cce7b453d0	149	0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
oks486	0:43cce7b453d0	150	0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96, \
oks486	0:43cce7b453d0	151	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	152	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	153	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
oks486	0:43cce7b453d0	154	0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xEF,0xF5,0xF0,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
oks486	0:43cce7b453d0	155	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	156
oks486	0:43cce7b453d0	157	#elif _CODE_PAGE == 771 /* KBL */
oks486	0:43cce7b453d0	158	#define _DF1S 0
oks486	0:43cce7b453d0	159	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
oks486	0:43cce7b453d0	160	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
oks486	0:43cce7b453d0	161	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
oks486	0:43cce7b453d0	162	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	163	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	164	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDC,0xDE,0xDE, \
oks486	0:43cce7b453d0	165	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
oks486	0:43cce7b453d0	166	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFE,0xFF}
oks486	0:43cce7b453d0	167
oks486	0:43cce7b453d0	168	#elif _CODE_PAGE == 775 /* Baltic */
oks486	0:43cce7b453d0	169	#define _DF1S 0
oks486	0:43cce7b453d0	170	#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F, \
oks486	0:43cce7b453d0	171	0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
oks486	0:43cce7b453d0	172	0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
oks486	0:43cce7b453d0	173	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	174	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	175	0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
oks486	0:43cce7b453d0	176	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF, \
oks486	0:43cce7b453d0	177	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	178
oks486	0:43cce7b453d0	179	#elif _CODE_PAGE == 850 /* Latin 1 */
oks486	0:43cce7b453d0	180	#define _DF1S 0
oks486	0:43cce7b453d0	181	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x41,0x43,0x45,0x45,0x45,0x49,0x49,0x49,0x41,0x41, \
oks486	0:43cce7b453d0	182	0x45,0x92,0x92,0x4F,0x4F,0x4F,0x55,0x55,0x59,0x4F,0x55,0x4F,0x9C,0x4F,0x9E,0x9F, \
oks486	0:43cce7b453d0	183	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
oks486	0:43cce7b453d0	184	0xB0,0xB1,0xB2,0xB3,0xB4,0x41,0x41,0x41,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	185	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0x41,0x41,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	186	0xD1,0xD1,0x45,0x45,0x45,0x49,0x49,0x49,0x49,0xD9,0xDA,0xDB,0xDC,0xDD,0x49,0xDF, \
oks486	0:43cce7b453d0	187	0x4F,0xE1,0x4F,0x4F,0x4F,0x4F,0xE6,0xE8,0xE8,0x55,0x55,0x55,0x59,0x59,0xEE,0xEF, \
oks486	0:43cce7b453d0	188	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	189
oks486	0:43cce7b453d0	190	#elif _CODE_PAGE == 852 /* Latin 2 */
oks486	0:43cce7b453d0	191	#define _DF1S 0
oks486	0:43cce7b453d0	192	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F, \
oks486	0:43cce7b453d0	193	0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0xAC, \
oks486	0:43cce7b453d0	194	0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF, \
oks486	0:43cce7b453d0	195	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
oks486	0:43cce7b453d0	196	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	197	0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
oks486	0:43cce7b453d0	198	0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF, \
oks486	0:43cce7b453d0	199	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
oks486	0:43cce7b453d0	200
oks486	0:43cce7b453d0	201	#elif _CODE_PAGE == 855 /* Cyrillic */
oks486	0:43cce7b453d0	202	#define _DF1S 0
oks486	0:43cce7b453d0	203	#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F, \
oks486	0:43cce7b453d0	204	0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
oks486	0:43cce7b453d0	205	0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF, \
oks486	0:43cce7b453d0	206	0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
oks486	0:43cce7b453d0	207	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	208	0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
oks486	0:43cce7b453d0	209	0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF, \
oks486	0:43cce7b453d0	210	0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	211
oks486	0:43cce7b453d0	212	#elif _CODE_PAGE == 857 /* Turkish */
oks486	0:43cce7b453d0	213	#define _DF1S 0
oks486	0:43cce7b453d0	214	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x49,0x8E,0x8F, \
oks486	0:43cce7b453d0	215	0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
oks486	0:43cce7b453d0	216	0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
oks486	0:43cce7b453d0	217	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	218	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	219	0xD0,0xD1,0xD2,0xD3,0xD4,0x49,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
oks486	0:43cce7b453d0	220	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0xED,0xEE,0xEF, \
oks486	0:43cce7b453d0	221	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	222
oks486	0:43cce7b453d0	223	#elif _CODE_PAGE == 860 /* Portuguese */
oks486	0:43cce7b453d0	224	#define _DF1S 0
oks486	0:43cce7b453d0	225	#define _EXCVT {0x80,0x9A,0x90,0x8F,0x8E,0x91,0x86,0x80,0x89,0x89,0x92,0x8B,0x8C,0x98,0x8E,0x8F, \
oks486	0:43cce7b453d0	226	0x90,0x91,0x92,0x8C,0x99,0xA9,0x96,0x9D,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
oks486	0:43cce7b453d0	227	0x86,0x8B,0x9F,0x96,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
oks486	0:43cce7b453d0	228	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	229	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	230	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
oks486	0:43cce7b453d0	231	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
oks486	0:43cce7b453d0	232	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	233
oks486	0:43cce7b453d0	234	#elif _CODE_PAGE == 861 /* Icelandic */
oks486	0:43cce7b453d0	235	#define _DF1S 0
oks486	0:43cce7b453d0	236	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x8B,0x8B,0x8D,0x8E,0x8F, \
oks486	0:43cce7b453d0	237	0x90,0x92,0x92,0x4F,0x99,0x8D,0x55,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
oks486	0:43cce7b453d0	238	0xA4,0xA5,0xA6,0xA7,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
oks486	0:43cce7b453d0	239	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	240	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	241	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
oks486	0:43cce7b453d0	242	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
oks486	0:43cce7b453d0	243	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	244
oks486	0:43cce7b453d0	245	#elif _CODE_PAGE == 862 /* Hebrew */
oks486	0:43cce7b453d0	246	#define _DF1S 0
oks486	0:43cce7b453d0	247	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
oks486	0:43cce7b453d0	248	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
oks486	0:43cce7b453d0	249	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
oks486	0:43cce7b453d0	250	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	251	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	252	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
oks486	0:43cce7b453d0	253	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
oks486	0:43cce7b453d0	254	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	255
oks486	0:43cce7b453d0	256	#elif _CODE_PAGE == 863 /* Canadian-French */
oks486	0:43cce7b453d0	257	#define _DF1S 0
oks486	0:43cce7b453d0	258	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x41,0x8F, \
oks486	0:43cce7b453d0	259	0x45,0x45,0x45,0x4F,0x45,0x49,0x55,0x55,0x98,0x4F,0x55,0x9B,0x9C,0x55,0x55,0x9F, \
oks486	0:43cce7b453d0	260	0xA0,0xA1,0x4F,0x55,0xA4,0xA5,0xA6,0xA7,0x49,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
oks486	0:43cce7b453d0	261	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	262	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	263	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
oks486	0:43cce7b453d0	264	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
oks486	0:43cce7b453d0	265	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	266
oks486	0:43cce7b453d0	267	#elif _CODE_PAGE == 864 /* Arabic */
oks486	0:43cce7b453d0	268	#define _DF1S 0
oks486	0:43cce7b453d0	269	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
oks486	0:43cce7b453d0	270	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
oks486	0:43cce7b453d0	271	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
oks486	0:43cce7b453d0	272	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	273	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	274	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
oks486	0:43cce7b453d0	275	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
oks486	0:43cce7b453d0	276	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	277
oks486	0:43cce7b453d0	278	#elif _CODE_PAGE == 865 /* Nordic */
oks486	0:43cce7b453d0	279	#define _DF1S 0
oks486	0:43cce7b453d0	280	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
oks486	0:43cce7b453d0	281	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
oks486	0:43cce7b453d0	282	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
oks486	0:43cce7b453d0	283	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	284	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	285	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
oks486	0:43cce7b453d0	286	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
oks486	0:43cce7b453d0	287	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	288
oks486	0:43cce7b453d0	289	#elif _CODE_PAGE == 866 /* Russian */
oks486	0:43cce7b453d0	290	#define _DF1S 0
oks486	0:43cce7b453d0	291	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
oks486	0:43cce7b453d0	292	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
oks486	0:43cce7b453d0	293	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
oks486	0:43cce7b453d0	294	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	295	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	296	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
oks486	0:43cce7b453d0	297	0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
oks486	0:43cce7b453d0	298	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
oks486	0:43cce7b453d0	299
oks486	0:43cce7b453d0	300	#elif _CODE_PAGE == 869 /* Greek 2 */
oks486	0:43cce7b453d0	301	#define _DF1S 0
oks486	0:43cce7b453d0	302	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
oks486	0:43cce7b453d0	303	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x86,0x9C,0x8D,0x8F,0x90, \
oks486	0:43cce7b453d0	304	0x91,0x90,0x92,0x95,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
oks486	0:43cce7b453d0	305	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
oks486	0:43cce7b453d0	306	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
oks486	0:43cce7b453d0	307	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xA4,0xA5,0xA6,0xD9,0xDA,0xDB,0xDC,0xA7,0xA8,0xDF, \
oks486	0:43cce7b453d0	308	0xA9,0xAA,0xAC,0xAD,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xCF,0xCF,0xD0,0xEF, \
oks486	0:43cce7b453d0	309	0xF0,0xF1,0xD1,0xD2,0xD3,0xF5,0xD4,0xF7,0xF8,0xF9,0xD5,0x96,0x95,0x98,0xFE,0xFF}
oks486	0:43cce7b453d0	310
oks486	0:43cce7b453d0	311	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
oks486	0:43cce7b453d0	312	#if _USE_LFN
oks486	0:43cce7b453d0	313	#error Cannot use LFN feature without valid code page.
oks486	0:43cce7b453d0	314	#endif
oks486	0:43cce7b453d0	315	#define _DF1S 0
oks486	0:43cce7b453d0	316
oks486	0:43cce7b453d0	317	#else
oks486	0:43cce7b453d0	318	#error Unknown code page
oks486	0:43cce7b453d0	319
oks486	0:43cce7b453d0	320	#endif
oks486	0:43cce7b453d0	321
oks486	0:43cce7b453d0	322
oks486	0:43cce7b453d0	323	/* Character code support macros */
oks486	0:43cce7b453d0	324	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
oks486	0:43cce7b453d0	325	#define IsLower(c) (((c)>='a')&&((c)<='z'))
oks486	0:43cce7b453d0	326	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
oks486	0:43cce7b453d0	327
oks486	0:43cce7b453d0	328	#if _DF1S /* Code page is DBCS */
oks486	0:43cce7b453d0	329
oks486	0:43cce7b453d0	330	#ifdef _DF2S /* Two 1st byte areas */
oks486	0:43cce7b453d0	331	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
oks486	0:43cce7b453d0	332	#else /* One 1st byte area */
oks486	0:43cce7b453d0	333	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
oks486	0:43cce7b453d0	334	#endif
oks486	0:43cce7b453d0	335
oks486	0:43cce7b453d0	336	#ifdef _DS3S /* Three 2nd byte areas */
oks486	0:43cce7b453d0	337	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
oks486	0:43cce7b453d0	338	#else /* Two 2nd byte areas */
oks486	0:43cce7b453d0	339	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
oks486	0:43cce7b453d0	340	#endif
oks486	0:43cce7b453d0	341
oks486	0:43cce7b453d0	342	#else /* Code page is SBCS */
oks486	0:43cce7b453d0	343
oks486	0:43cce7b453d0	344	#define IsDBCS1(c) 0
oks486	0:43cce7b453d0	345	#define IsDBCS2(c) 0
oks486	0:43cce7b453d0	346
oks486	0:43cce7b453d0	347	#endif /* _DF1S */
oks486	0:43cce7b453d0	348
oks486	0:43cce7b453d0	349
oks486	0:43cce7b453d0	350	/* Name status flags */
oks486	0:43cce7b453d0	351	#define NSFLAG 11 /* Index of name status byte in fn[] */
oks486	0:43cce7b453d0	352	#define NS_LOSS 0x01 /* Out of 8.3 format */
oks486	0:43cce7b453d0	353	#define NS_LFN 0x02 /* Force to create LFN entry */
oks486	0:43cce7b453d0	354	#define NS_LAST 0x04 /* Last segment */
oks486	0:43cce7b453d0	355	#define NS_BODY 0x08 /* Lower case flag (body) */
oks486	0:43cce7b453d0	356	#define NS_EXT 0x10 /* Lower case flag (ext) */
oks486	0:43cce7b453d0	357	#define NS_DOT 0x20 /* Dot entry */
oks486	0:43cce7b453d0	358
oks486	0:43cce7b453d0	359
oks486	0:43cce7b453d0	360	/* FAT sub-type boundaries (Differ from specs but correct for real DOS/Windows) */
oks486	0:43cce7b453d0	361	#define MIN_FAT16 4086U /* Minimum number of clusters of FAT16 */
oks486	0:43cce7b453d0	362	#define MIN_FAT32 65526U /* Minimum number of clusters of FAT32 */
oks486	0:43cce7b453d0	363
oks486	0:43cce7b453d0	364
oks486	0:43cce7b453d0	365	/* FatFs refers the members in the FAT structures as byte array instead of
oks486	0:43cce7b453d0	366	/ structure members because the structure is not binary compatible between
oks486	0:43cce7b453d0	367	/ different platforms */
oks486	0:43cce7b453d0	368
oks486	0:43cce7b453d0	369	#define BS_jmpBoot 0 /* x86 jump instruction (3) */
oks486	0:43cce7b453d0	370	#define BS_OEMName 3 /* OEM name (8) */
oks486	0:43cce7b453d0	371	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
oks486	0:43cce7b453d0	372	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
oks486	0:43cce7b453d0	373	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
oks486	0:43cce7b453d0	374	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
oks486	0:43cce7b453d0	375	#define BPB_RootEntCnt 17 /* Number of root directory entries for FAT12/16 (2) */
oks486	0:43cce7b453d0	376	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
oks486	0:43cce7b453d0	377	#define BPB_Media 21 /* Media descriptor (1) */
oks486	0:43cce7b453d0	378	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
oks486	0:43cce7b453d0	379	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
oks486	0:43cce7b453d0	380	#define BPB_NumHeads 26 /* Number of heads (2) */
oks486	0:43cce7b453d0	381	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
oks486	0:43cce7b453d0	382	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
oks486	0:43cce7b453d0	383	#define BS_DrvNum 36 /* Physical drive number (1) */
oks486	0:43cce7b453d0	384	#define BS_NTres 37 /* Error flag (1) */
oks486	0:43cce7b453d0	385	#define BS_BootSig 38 /* Extended boot signature (1) */
oks486	0:43cce7b453d0	386	#define BS_VolID 39 /* Volume serial number (4) */
oks486	0:43cce7b453d0	387	#define BS_VolLab 43 /* Volume label (8) */
oks486	0:43cce7b453d0	388	#define BS_FilSysType 54 /* File system type (1) */
oks486	0:43cce7b453d0	389	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
oks486	0:43cce7b453d0	390	#define BPB_ExtFlags 40 /* Extended flags (2) */
oks486	0:43cce7b453d0	391	#define BPB_FSVer 42 /* File system version (2) */
oks486	0:43cce7b453d0	392	#define BPB_RootClus 44 /* Root directory first cluster (4) */
oks486	0:43cce7b453d0	393	#define BPB_FSInfo 48 /* Offset of FSINFO sector (2) */
oks486	0:43cce7b453d0	394	#define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
oks486	0:43cce7b453d0	395	#define BS_DrvNum32 64 /* Physical drive number (1) */
oks486	0:43cce7b453d0	396	#define BS_NTres32 65 /* Error flag (1) */
oks486	0:43cce7b453d0	397	#define BS_BootSig32 66 /* Extended boot signature (1) */
oks486	0:43cce7b453d0	398	#define BS_VolID32 67 /* Volume serial number (4) */
oks486	0:43cce7b453d0	399	#define BS_VolLab32 71 /* Volume label (8) */
oks486	0:43cce7b453d0	400	#define BS_FilSysType32 82 /* File system type (1) */
oks486	0:43cce7b453d0	401	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
oks486	0:43cce7b453d0	402	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
oks486	0:43cce7b453d0	403	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
oks486	0:43cce7b453d0	404	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
oks486	0:43cce7b453d0	405	#define MBR_Table 446 /* MBR: Partition table offset (2) */
oks486	0:43cce7b453d0	406	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
oks486	0:43cce7b453d0	407	#define BS_55AA 510 /* Signature word (2) */
oks486	0:43cce7b453d0	408
oks486	0:43cce7b453d0	409	#define DIR_Name 0 /* Short file name (11) */
oks486	0:43cce7b453d0	410	#define DIR_Attr 11 /* Attribute (1) */
oks486	0:43cce7b453d0	411	#define DIR_NTres 12 /* Lower case flag (1) */
oks486	0:43cce7b453d0	412	#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
oks486	0:43cce7b453d0	413	#define DIR_CrtTime 14 /* Created time (2) */
oks486	0:43cce7b453d0	414	#define DIR_CrtDate 16 /* Created date (2) */
oks486	0:43cce7b453d0	415	#define DIR_LstAccDate 18 /* Last accessed date (2) */
oks486	0:43cce7b453d0	416	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
oks486	0:43cce7b453d0	417	#define DIR_WrtTime 22 /* Modified time (2) */
oks486	0:43cce7b453d0	418	#define DIR_WrtDate 24 /* Modified date (2) */
oks486	0:43cce7b453d0	419	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
oks486	0:43cce7b453d0	420	#define DIR_FileSize 28 /* File size (4) */
oks486	0:43cce7b453d0	421	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
oks486	0:43cce7b453d0	422	#define LDIR_Attr 11 /* LFN attribute (1) */
oks486	0:43cce7b453d0	423	#define LDIR_Type 12 /* LFN type (1) */
oks486	0:43cce7b453d0	424	#define LDIR_Chksum 13 /* Checksum of corresponding SFN entry */
oks486	0:43cce7b453d0	425	#define LDIR_FstClusLO 26 /* Must be zero (0) */
oks486	0:43cce7b453d0	426	#define SZ_DIRE 32 /* Size of a directory entry */
oks486	0:43cce7b453d0	427	#define LLEF 0x40 /* Last long entry flag in LDIR_Ord */
oks486	0:43cce7b453d0	428	#define DDEM 0xE5 /* Deleted directory entry mark at DIR_Name[0] */
oks486	0:43cce7b453d0	429	#define RDDEM 0x05 /* Replacement of the character collides with DDEM */
oks486	0:43cce7b453d0	430
oks486	0:43cce7b453d0	431
oks486	0:43cce7b453d0	432
oks486	0:43cce7b453d0	433
oks486	0:43cce7b453d0	434	/*--------------------------------------------------------------------------
oks486	0:43cce7b453d0	435
oks486	0:43cce7b453d0	436	Module Private Work Area
oks486	0:43cce7b453d0	437
oks486	0:43cce7b453d0	438	---------------------------------------------------------------------------*/
oks486	0:43cce7b453d0	439
oks486	0:43cce7b453d0	440	/* Remark: Uninitialized variables with static duration are guaranteed
oks486	0:43cce7b453d0	441	/ zero/null at start-up. If not, either the linker or start-up routine
oks486	0:43cce7b453d0	442	/ being used is not compliance with ANSI-C standard.
oks486	0:43cce7b453d0	443	*/
oks486	0:43cce7b453d0	444
oks486	0:43cce7b453d0	445	#if _VOLUMES < 1 \|\| _VOLUMES > 9
oks486	0:43cce7b453d0	446	#error Wrong _VOLUMES setting
oks486	0:43cce7b453d0	447	#endif
oks486	0:43cce7b453d0	448	static FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
oks486	0:43cce7b453d0	449	static WORD Fsid; /* File system mount ID */
oks486	0:43cce7b453d0	450
oks486	0:43cce7b453d0	451	#if _FS_RPATH && _VOLUMES >= 2
oks486	0:43cce7b453d0	452	static BYTE CurrVol; /* Current drive */
oks486	0:43cce7b453d0	453	#endif
oks486	0:43cce7b453d0	454
oks486	0:43cce7b453d0	455	#if _FS_LOCK
oks486	0:43cce7b453d0	456	static FILESEM Files[_FS_LOCK]; /* Open object lock semaphores */
oks486	0:43cce7b453d0	457	#endif
oks486	0:43cce7b453d0	458
oks486	0:43cce7b453d0	459	#if _USE_LFN == 0 /* Non LFN feature */
oks486	0:43cce7b453d0	460	#define DEFINE_NAMEBUF BYTE sfn[12]
oks486	0:43cce7b453d0	461	#define INIT_BUF(dobj) (dobj).fn = sfn
oks486	0:43cce7b453d0	462	#define FREE_BUF()
oks486	0:43cce7b453d0	463	#else
oks486	0:43cce7b453d0	464	#if _MAX_LFN < 12 \|\| _MAX_LFN > 255
oks486	0:43cce7b453d0	465	#error Wrong _MAX_LFN setting
oks486	0:43cce7b453d0	466	#endif
oks486	0:43cce7b453d0	467	#if _USE_LFN == 1 /* LFN feature with static working buffer */
oks486	0:43cce7b453d0	468	static WCHAR LfnBuf[_MAX_LFN + 1];
oks486	0:43cce7b453d0	469	#define DEFINE_NAMEBUF BYTE sfn[12]
oks486	0:43cce7b453d0	470	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
oks486	0:43cce7b453d0	471	#define FREE_BUF()
oks486	0:43cce7b453d0	472	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
oks486	0:43cce7b453d0	473	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN + 1]
oks486	0:43cce7b453d0	474	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
oks486	0:43cce7b453d0	475	#define FREE_BUF()
oks486	0:43cce7b453d0	476	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
oks486	0:43cce7b453d0	477	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR *lfn
oks486	0:43cce7b453d0	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; }
oks486	0:43cce7b453d0	479	#define FREE_BUF() ff_memfree(lfn)
oks486	0:43cce7b453d0	480	#else
oks486	0:43cce7b453d0	481	#error Wrong _USE_LFN setting
oks486	0:43cce7b453d0	482	#endif
oks486	0:43cce7b453d0	483	#endif
oks486	0:43cce7b453d0	484
oks486	0:43cce7b453d0	485	#ifdef _EXCVT
oks486	0:43cce7b453d0	486	static const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for SBCS extended characters */
oks486	0:43cce7b453d0	487	#endif
oks486	0:43cce7b453d0	488
oks486	0:43cce7b453d0	489
oks486	0:43cce7b453d0	490
oks486	0:43cce7b453d0	491
oks486	0:43cce7b453d0	492
oks486	0:43cce7b453d0	493
oks486	0:43cce7b453d0	494	/*--------------------------------------------------------------------------
oks486	0:43cce7b453d0	495
oks486	0:43cce7b453d0	496	Module Private Functions
oks486	0:43cce7b453d0	497
oks486	0:43cce7b453d0	498	---------------------------------------------------------------------------*/
oks486	0:43cce7b453d0	499
oks486	0:43cce7b453d0	500
oks486	0:43cce7b453d0	501	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	502	/* String functions */
oks486	0:43cce7b453d0	503	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	504
oks486	0:43cce7b453d0	505	/* Copy memory to memory */
oks486	0:43cce7b453d0	506	static
oks486	0:43cce7b453d0	507	void mem_cpy (void* dst, const void* src, UINT cnt) {
oks486	0:43cce7b453d0	508	BYTE d = (BYTE)dst;
oks486	0:43cce7b453d0	509	const BYTE s = (const BYTE)src;
oks486	0:43cce7b453d0	510
oks486	0:43cce7b453d0	511	#if _WORD_ACCESS == 1
oks486	0:43cce7b453d0	512	while (cnt >= sizeof (int)) {
oks486	0:43cce7b453d0	513	(int)d = (int)s;
oks486	0:43cce7b453d0	514	d += sizeof (int); s += sizeof (int);
oks486	0:43cce7b453d0	515	cnt -= sizeof (int);
oks486	0:43cce7b453d0	516	}
oks486	0:43cce7b453d0	517	#endif
oks486	0:43cce7b453d0	518	while (cnt--)
oks486	0:43cce7b453d0	519	d++ = s++;
oks486	0:43cce7b453d0	520	}
oks486	0:43cce7b453d0	521
oks486	0:43cce7b453d0	522	/* Fill memory */
oks486	0:43cce7b453d0	523	static
oks486	0:43cce7b453d0	524	void mem_set (void* dst, int val, UINT cnt) {
oks486	0:43cce7b453d0	525	BYTE d = (BYTE)dst;
oks486	0:43cce7b453d0	526
oks486	0:43cce7b453d0	527	while (cnt--)
oks486	0:43cce7b453d0	528	*d++ = (BYTE)val;
oks486	0:43cce7b453d0	529	}
oks486	0:43cce7b453d0	530
oks486	0:43cce7b453d0	531	/* Compare memory to memory */
oks486	0:43cce7b453d0	532	static
oks486	0:43cce7b453d0	533	int mem_cmp (const void* dst, const void* src, UINT cnt) {
oks486	0:43cce7b453d0	534	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
oks486	0:43cce7b453d0	535	int r = 0;
oks486	0:43cce7b453d0	536
oks486	0:43cce7b453d0	537	while (cnt-- && (r = d++ - s++) == 0) ;
oks486	0:43cce7b453d0	538	return r;
oks486	0:43cce7b453d0	539	}
oks486	0:43cce7b453d0	540
oks486	0:43cce7b453d0	541	/* Check if chr is contained in the string */
oks486	0:43cce7b453d0	542	static
oks486	0:43cce7b453d0	543	int chk_chr (const char* str, int chr) {
oks486	0:43cce7b453d0	544	while (str && str != chr) str++;
oks486	0:43cce7b453d0	545	return *str;
oks486	0:43cce7b453d0	546	}
oks486	0:43cce7b453d0	547
oks486	0:43cce7b453d0	548
oks486	0:43cce7b453d0	549
oks486	0:43cce7b453d0	550
oks486	0:43cce7b453d0	551	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	552	/* Request/Release grant to access the volume */
oks486	0:43cce7b453d0	553	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	554	#if _FS_REENTRANT
oks486	0:43cce7b453d0	555	static
oks486	0:43cce7b453d0	556	int lock_fs (
oks486	0:43cce7b453d0	557	FATFS* fs /* File system object */
oks486	0:43cce7b453d0	558	)
oks486	0:43cce7b453d0	559	{
oks486	0:43cce7b453d0	560	return ff_req_grant(fs->sobj);
oks486	0:43cce7b453d0	561	}
oks486	0:43cce7b453d0	562
oks486	0:43cce7b453d0	563
oks486	0:43cce7b453d0	564	static
oks486	0:43cce7b453d0	565	void unlock_fs (
oks486	0:43cce7b453d0	566	FATFS* fs, /* File system object */
oks486	0:43cce7b453d0	567	FRESULT res /* Result code to be returned */
oks486	0:43cce7b453d0	568	)
oks486	0:43cce7b453d0	569	{
oks486	0:43cce7b453d0	570	if (fs &&
oks486	0:43cce7b453d0	571	res != FR_NOT_ENABLED &&
oks486	0:43cce7b453d0	572	res != FR_INVALID_DRIVE &&
oks486	0:43cce7b453d0	573	res != FR_INVALID_OBJECT &&
oks486	0:43cce7b453d0	574	res != FR_TIMEOUT) {
oks486	0:43cce7b453d0	575	ff_rel_grant(fs->sobj);
oks486	0:43cce7b453d0	576	}
oks486	0:43cce7b453d0	577	}
oks486	0:43cce7b453d0	578	#endif
oks486	0:43cce7b453d0	579
oks486	0:43cce7b453d0	580
oks486	0:43cce7b453d0	581
oks486	0:43cce7b453d0	582
oks486	0:43cce7b453d0	583	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	584	/* File lock control functions */
oks486	0:43cce7b453d0	585	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	586	#if _FS_LOCK
oks486	0:43cce7b453d0	587
oks486	0:43cce7b453d0	588	static
oks486	0:43cce7b453d0	589	FRESULT chk_lock ( /* Check if the file can be accessed */
oks486	0:43cce7b453d0	590	DIR* dp, /* Directory object pointing the file to be checked */
oks486	0:43cce7b453d0	591	int acc /* Desired access type (0:Read, 1:Write, 2:Delete/Rename) */
oks486	0:43cce7b453d0	592	)
oks486	0:43cce7b453d0	593	{
oks486	0:43cce7b453d0	594	UINT i, be;
oks486	0:43cce7b453d0	595
oks486	0:43cce7b453d0	596	/* Search file semaphore table */
oks486	0:43cce7b453d0	597	for (i = be = 0; i < _FS_LOCK; i++) {
oks486	0:43cce7b453d0	598	if (Files[i].fs) { /* Existing entry */
oks486	0:43cce7b453d0	599	if (Files[i].fs == dp->fs && /* Check if the object matched with an open object */
oks486	0:43cce7b453d0	600	Files[i].clu == dp->sclust &&
oks486	0:43cce7b453d0	601	Files[i].idx == dp->index) break;
oks486	0:43cce7b453d0	602	} else { /* Blank entry */
oks486	0:43cce7b453d0	603	be = 1;
oks486	0:43cce7b453d0	604	}
oks486	0:43cce7b453d0	605	}
oks486	0:43cce7b453d0	606	if (i == _FS_LOCK) /* The object is not opened */
oks486	0:43cce7b453d0	607	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new object? */
oks486	0:43cce7b453d0	608
oks486	0:43cce7b453d0	609	/* The object has been opened. Reject any open against writing file and all write mode open */
oks486	0:43cce7b453d0	610	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
oks486	0:43cce7b453d0	611	}
oks486	0:43cce7b453d0	612
oks486	0:43cce7b453d0	613
oks486	0:43cce7b453d0	614	static
oks486	0:43cce7b453d0	615	int enq_lock (void) /* Check if an entry is available for a new object */
oks486	0:43cce7b453d0	616	{
oks486	0:43cce7b453d0	617	UINT i;
oks486	0:43cce7b453d0	618
oks486	0:43cce7b453d0	619	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
oks486	0:43cce7b453d0	620	return (i == _FS_LOCK) ? 0 : 1;
oks486	0:43cce7b453d0	621	}
oks486	0:43cce7b453d0	622
oks486	0:43cce7b453d0	623
oks486	0:43cce7b453d0	624	static
oks486	0:43cce7b453d0	625	UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */
oks486	0:43cce7b453d0	626	DIR* dp, /* Directory object pointing the file to register or increment */
oks486	0:43cce7b453d0	627	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
oks486	0:43cce7b453d0	628	)
oks486	0:43cce7b453d0	629	{
oks486	0:43cce7b453d0	630	UINT i;
oks486	0:43cce7b453d0	631
oks486	0:43cce7b453d0	632
oks486	0:43cce7b453d0	633	for (i = 0; i < _FS_LOCK; i++) { /* Find the object */
oks486	0:43cce7b453d0	634	if (Files[i].fs == dp->fs &&
oks486	0:43cce7b453d0	635	Files[i].clu == dp->sclust &&
oks486	0:43cce7b453d0	636	Files[i].idx == dp->index) break;
oks486	0:43cce7b453d0	637	}
oks486	0:43cce7b453d0	638
oks486	0:43cce7b453d0	639	if (i == _FS_LOCK) { /* Not opened. Register it as new. */
oks486	0:43cce7b453d0	640	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
oks486	0:43cce7b453d0	641	if (i == _FS_LOCK) return 0; /* No free entry to register (int err) */
oks486	0:43cce7b453d0	642	Files[i].fs = dp->fs;
oks486	0:43cce7b453d0	643	Files[i].clu = dp->sclust;
oks486	0:43cce7b453d0	644	Files[i].idx = dp->index;
oks486	0:43cce7b453d0	645	Files[i].ctr = 0;
oks486	0:43cce7b453d0	646	}
oks486	0:43cce7b453d0	647
oks486	0:43cce7b453d0	648	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
oks486	0:43cce7b453d0	649
oks486	0:43cce7b453d0	650	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
oks486	0:43cce7b453d0	651
oks486	0:43cce7b453d0	652	return i + 1;
oks486	0:43cce7b453d0	653	}
oks486	0:43cce7b453d0	654
oks486	0:43cce7b453d0	655
oks486	0:43cce7b453d0	656	static
oks486	0:43cce7b453d0	657	FRESULT dec_lock ( /* Decrement object open counter */
oks486	0:43cce7b453d0	658	UINT i /* Semaphore index (1..) */
oks486	0:43cce7b453d0	659	)
oks486	0:43cce7b453d0	660	{
oks486	0:43cce7b453d0	661	WORD n;
oks486	0:43cce7b453d0	662	FRESULT res;
oks486	0:43cce7b453d0	663
oks486	0:43cce7b453d0	664
oks486	0:43cce7b453d0	665	if (--i < _FS_LOCK) { /* Shift index number origin from 0 */
oks486	0:43cce7b453d0	666	n = Files[i].ctr;
oks486	0:43cce7b453d0	667	if (n == 0x100) n = 0; /* If write mode open, delete the entry */
oks486	0:43cce7b453d0	668	if (n) n--; /* Decrement read mode open count */
oks486	0:43cce7b453d0	669	Files[i].ctr = n;
oks486	0:43cce7b453d0	670	if (!n) Files[i].fs = 0; /* Delete the entry if open count gets zero */
oks486	0:43cce7b453d0	671	res = FR_OK;
oks486	0:43cce7b453d0	672	} else {
oks486	0:43cce7b453d0	673	res = FR_INT_ERR; /* Invalid index nunber */
oks486	0:43cce7b453d0	674	}
oks486	0:43cce7b453d0	675	return res;
oks486	0:43cce7b453d0	676	}
oks486	0:43cce7b453d0	677
oks486	0:43cce7b453d0	678
oks486	0:43cce7b453d0	679	static
oks486	0:43cce7b453d0	680	void clear_lock ( /* Clear lock entries of the volume */
oks486	0:43cce7b453d0	681	FATFS *fs
oks486	0:43cce7b453d0	682	)
oks486	0:43cce7b453d0	683	{
oks486	0:43cce7b453d0	684	UINT i;
oks486	0:43cce7b453d0	685
oks486	0:43cce7b453d0	686	for (i = 0; i < _FS_LOCK; i++) {
oks486	0:43cce7b453d0	687	if (Files[i].fs == fs) Files[i].fs = 0;
oks486	0:43cce7b453d0	688	}
oks486	0:43cce7b453d0	689	}
oks486	0:43cce7b453d0	690	#endif
oks486	0:43cce7b453d0	691
oks486	0:43cce7b453d0	692
oks486	0:43cce7b453d0	693
oks486	0:43cce7b453d0	694
oks486	0:43cce7b453d0	695	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	696	/* Move/Flush disk access window in the file system object */
oks486	0:43cce7b453d0	697	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	698	#if !_FS_READONLY
oks486	0:43cce7b453d0	699	static
oks486	0:43cce7b453d0	700	FRESULT sync_window ( /* FR_OK:succeeded, !=0:error */
oks486	0:43cce7b453d0	701	FATFS* fs /* File system object */
oks486	0:43cce7b453d0	702	)
oks486	0:43cce7b453d0	703	{
oks486	0:43cce7b453d0	704	DWORD wsect;
oks486	0:43cce7b453d0	705	UINT nf;
oks486	0:43cce7b453d0	706	FRESULT res = FR_OK;
oks486	0:43cce7b453d0	707
oks486	0:43cce7b453d0	708
oks486	0:43cce7b453d0	709	if (fs->wflag) { /* Write back the sector if it is dirty */
oks486	0:43cce7b453d0	710	wsect = fs->winsect; /* Current sector number */
oks486	0:43cce7b453d0	711	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK) {
oks486	0:43cce7b453d0	712	res = FR_DISK_ERR;
oks486	0:43cce7b453d0	713	} else {
oks486	0:43cce7b453d0	714	fs->wflag = 0;
oks486	0:43cce7b453d0	715	if (wsect - fs->fatbase < fs->fsize) { /* Is it in the FAT area? */
oks486	0:43cce7b453d0	716	for (nf = fs->n_fats; nf >= 2; nf--) { /* Reflect the change to all FAT copies */
oks486	0:43cce7b453d0	717	wsect += fs->fsize;
oks486	0:43cce7b453d0	718	disk_write(fs->drv, fs->win, wsect, 1);
oks486	0:43cce7b453d0	719	}
oks486	0:43cce7b453d0	720	}
oks486	0:43cce7b453d0	721	}
oks486	0:43cce7b453d0	722	}
oks486	0:43cce7b453d0	723	return res;
oks486	0:43cce7b453d0	724	}
oks486	0:43cce7b453d0	725	#endif
oks486	0:43cce7b453d0	726
oks486	0:43cce7b453d0	727
oks486	0:43cce7b453d0	728	static
oks486	0:43cce7b453d0	729	FRESULT move_window ( /* FR_OK(0):succeeded, !=0:error */
oks486	0:43cce7b453d0	730	FATFS* fs, /* File system object */
oks486	0:43cce7b453d0	731	DWORD sector /* Sector number to make appearance in the fs->win[] */
oks486	0:43cce7b453d0	732	)
oks486	0:43cce7b453d0	733	{
oks486	0:43cce7b453d0	734	FRESULT res = FR_OK;
oks486	0:43cce7b453d0	735
oks486	0:43cce7b453d0	736
oks486	0:43cce7b453d0	737	if (sector != fs->winsect) { /* Window offset changed? */
oks486	0:43cce7b453d0	738	#if !_FS_READONLY
oks486	0:43cce7b453d0	739	res = sync_window(fs); /* Write-back changes */
oks486	0:43cce7b453d0	740	#endif
oks486	0:43cce7b453d0	741	if (res == FR_OK) { /* Fill sector window with new data */
oks486	0:43cce7b453d0	742	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK) {
oks486	0:43cce7b453d0	743	sector = 0xFFFFFFFF; /* Invalidate window if data is not reliable */
oks486	0:43cce7b453d0	744	res = FR_DISK_ERR;
oks486	0:43cce7b453d0	745	}
oks486	0:43cce7b453d0	746	fs->winsect = sector;
oks486	0:43cce7b453d0	747	}
oks486	0:43cce7b453d0	748	}
oks486	0:43cce7b453d0	749	return res;
oks486	0:43cce7b453d0	750	}
oks486	0:43cce7b453d0	751
oks486	0:43cce7b453d0	752
oks486	0:43cce7b453d0	753
oks486	0:43cce7b453d0	754
oks486	0:43cce7b453d0	755	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	756	/* Synchronize file system and strage device */
oks486	0:43cce7b453d0	757	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	758	#if !_FS_READONLY
oks486	0:43cce7b453d0	759	static
oks486	0:43cce7b453d0	760	FRESULT sync_fs ( /* FR_OK:succeeded, !=0:error */
oks486	0:43cce7b453d0	761	FATFS* fs /* File system object */
oks486	0:43cce7b453d0	762	)
oks486	0:43cce7b453d0	763	{
oks486	0:43cce7b453d0	764	FRESULT res;
oks486	0:43cce7b453d0	765
oks486	0:43cce7b453d0	766
oks486	0:43cce7b453d0	767	res = sync_window(fs);
oks486	0:43cce7b453d0	768	if (res == FR_OK) {
oks486	0:43cce7b453d0	769	/* Update FSInfo sector if needed */
oks486	0:43cce7b453d0	770	if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) {
oks486	0:43cce7b453d0	771	/* Create FSInfo structure */
oks486	0:43cce7b453d0	772	mem_set(fs->win, 0, SS(fs));
oks486	0:43cce7b453d0	773	ST_WORD(fs->win + BS_55AA, 0xAA55);
oks486	0:43cce7b453d0	774	ST_DWORD(fs->win + FSI_LeadSig, 0x41615252);
oks486	0:43cce7b453d0	775	ST_DWORD(fs->win + FSI_StrucSig, 0x61417272);
oks486	0:43cce7b453d0	776	ST_DWORD(fs->win + FSI_Free_Count, fs->free_clust);
oks486	0:43cce7b453d0	777	ST_DWORD(fs->win + FSI_Nxt_Free, fs->last_clust);
oks486	0:43cce7b453d0	778	/* Write it into the FSInfo sector */
oks486	0:43cce7b453d0	779	fs->winsect = fs->volbase + 1;
oks486	0:43cce7b453d0	780	disk_write(fs->drv, fs->win, fs->winsect, 1);
oks486	0:43cce7b453d0	781	fs->fsi_flag = 0;
oks486	0:43cce7b453d0	782	}
oks486	0:43cce7b453d0	783	/* Make sure that no pending write process in the physical drive */
oks486	0:43cce7b453d0	784	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
oks486	0:43cce7b453d0	785	res = FR_DISK_ERR;
oks486	0:43cce7b453d0	786	}
oks486	0:43cce7b453d0	787
oks486	0:43cce7b453d0	788	return res;
oks486	0:43cce7b453d0	789	}
oks486	0:43cce7b453d0	790	#endif
oks486	0:43cce7b453d0	791
oks486	0:43cce7b453d0	792
oks486	0:43cce7b453d0	793
oks486	0:43cce7b453d0	794
oks486	0:43cce7b453d0	795	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	796	/* Get sector# from cluster# */
oks486	0:43cce7b453d0	797	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	798	/* Hidden API for hacks and disk tools */
oks486	0:43cce7b453d0	799
oks486	0:43cce7b453d0	800	DWORD clust2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */
oks486	0:43cce7b453d0	801	FATFS* fs, /* File system object */
oks486	0:43cce7b453d0	802	DWORD clst /* Cluster# to be converted */
oks486	0:43cce7b453d0	803	)
oks486	0:43cce7b453d0	804	{
oks486	0:43cce7b453d0	805	clst -= 2;
oks486	0:43cce7b453d0	806	if (clst >= fs->n_fatent - 2) return 0; /* Invalid cluster# */
oks486	0:43cce7b453d0	807	return clst * fs->csize + fs->database;
oks486	0:43cce7b453d0	808	}
oks486	0:43cce7b453d0	809
oks486	0:43cce7b453d0	810
oks486	0:43cce7b453d0	811
oks486	0:43cce7b453d0	812
oks486	0:43cce7b453d0	813	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	814	/* FAT access - Read value of a FAT entry */
oks486	0:43cce7b453d0	815	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	816	/* Hidden API for hacks and disk tools */
oks486	0:43cce7b453d0	817
oks486	0:43cce7b453d0	818	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluster status */
oks486	0:43cce7b453d0	819	FATFS* fs, /* File system object */
oks486	0:43cce7b453d0	820	DWORD clst /* FAT index number (cluster number) to get the value */
oks486	0:43cce7b453d0	821	)
oks486	0:43cce7b453d0	822	{
oks486	0:43cce7b453d0	823	UINT wc, bc;
oks486	0:43cce7b453d0	824	BYTE *p;
oks486	0:43cce7b453d0	825	DWORD val;
oks486	0:43cce7b453d0	826
oks486	0:43cce7b453d0	827
oks486	0:43cce7b453d0	828	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
oks486	0:43cce7b453d0	829	val = 1; /* Internal error */
oks486	0:43cce7b453d0	830
oks486	0:43cce7b453d0	831	} else {
oks486	0:43cce7b453d0	832	val = 0xFFFFFFFF; /* Default value falls on disk error */
oks486	0:43cce7b453d0	833
oks486	0:43cce7b453d0	834	switch (fs->fs_type) {
oks486	0:43cce7b453d0	835	case FS_FAT12 :
oks486	0:43cce7b453d0	836	bc = (UINT)clst; bc += bc / 2;
oks486	0:43cce7b453d0	837	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
oks486	0:43cce7b453d0	838	wc = fs->win[bc++ % SS(fs)];
oks486	0:43cce7b453d0	839	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
oks486	0:43cce7b453d0	840	wc \|= fs->win[bc % SS(fs)] << 8;
oks486	0:43cce7b453d0	841	val = clst & 1 ? wc >> 4 : (wc & 0xFFF);
oks486	0:43cce7b453d0	842	break;
oks486	0:43cce7b453d0	843
oks486	0:43cce7b453d0	844	case FS_FAT16 :
oks486	0:43cce7b453d0	845	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break;
oks486	0:43cce7b453d0	846	p = &fs->win[clst * 2 % SS(fs)];
oks486	0:43cce7b453d0	847	val = LD_WORD(p);
oks486	0:43cce7b453d0	848	break;
oks486	0:43cce7b453d0	849
oks486	0:43cce7b453d0	850	case FS_FAT32 :
oks486	0:43cce7b453d0	851	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;
oks486	0:43cce7b453d0	852	p = &fs->win[clst * 4 % SS(fs)];
oks486	0:43cce7b453d0	853	val = LD_DWORD(p) & 0x0FFFFFFF;
oks486	0:43cce7b453d0	854	break;
oks486	0:43cce7b453d0	855
oks486	0:43cce7b453d0	856	default:
oks486	0:43cce7b453d0	857	val = 1; /* Internal error */
oks486	0:43cce7b453d0	858	}
oks486	0:43cce7b453d0	859	}
oks486	0:43cce7b453d0	860
oks486	0:43cce7b453d0	861	return val;
oks486	0:43cce7b453d0	862	}
oks486	0:43cce7b453d0	863
oks486	0:43cce7b453d0	864
oks486	0:43cce7b453d0	865
oks486	0:43cce7b453d0	866
oks486	0:43cce7b453d0	867	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	868	/* FAT access - Change value of a FAT entry */
oks486	0:43cce7b453d0	869	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	870	/* Hidden API for hacks and disk tools */
oks486	0:43cce7b453d0	871
oks486	0:43cce7b453d0	872	#if !_FS_READONLY
oks486	0:43cce7b453d0	873	FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */
oks486	0:43cce7b453d0	874	FATFS* fs, /* File system object */
oks486	0:43cce7b453d0	875	DWORD clst, /* FAT index number (cluster number) to be changed */
oks486	0:43cce7b453d0	876	DWORD val /* New value to be set to the entry */
oks486	0:43cce7b453d0	877	)
oks486	0:43cce7b453d0	878	{
oks486	0:43cce7b453d0	879	UINT bc;
oks486	0:43cce7b453d0	880	BYTE *p;
oks486	0:43cce7b453d0	881	FRESULT res;
oks486	0:43cce7b453d0	882
oks486	0:43cce7b453d0	883
oks486	0:43cce7b453d0	884	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
oks486	0:43cce7b453d0	885	res = FR_INT_ERR;
oks486	0:43cce7b453d0	886
oks486	0:43cce7b453d0	887	} else {
oks486	0:43cce7b453d0	888	switch (fs->fs_type) {
oks486	0:43cce7b453d0	889	case FS_FAT12 :
oks486	0:43cce7b453d0	890	bc = (UINT)clst; bc += bc / 2;
oks486	0:43cce7b453d0	891	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
oks486	0:43cce7b453d0	892	if (res != FR_OK) break;
oks486	0:43cce7b453d0	893	p = &fs->win[bc++ % SS(fs)];
oks486	0:43cce7b453d0	894	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
oks486	0:43cce7b453d0	895	fs->wflag = 1;
oks486	0:43cce7b453d0	896	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
oks486	0:43cce7b453d0	897	if (res != FR_OK) break;
oks486	0:43cce7b453d0	898	p = &fs->win[bc % SS(fs)];
oks486	0:43cce7b453d0	899	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
oks486	0:43cce7b453d0	900	fs->wflag = 1;
oks486	0:43cce7b453d0	901	break;
oks486	0:43cce7b453d0	902
oks486	0:43cce7b453d0	903	case FS_FAT16 :
oks486	0:43cce7b453d0	904	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
oks486	0:43cce7b453d0	905	if (res != FR_OK) break;
oks486	0:43cce7b453d0	906	p = &fs->win[clst * 2 % SS(fs)];
oks486	0:43cce7b453d0	907	ST_WORD(p, (WORD)val);
oks486	0:43cce7b453d0	908	fs->wflag = 1;
oks486	0:43cce7b453d0	909	break;
oks486	0:43cce7b453d0	910
oks486	0:43cce7b453d0	911	case FS_FAT32 :
oks486	0:43cce7b453d0	912	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
oks486	0:43cce7b453d0	913	if (res != FR_OK) break;
oks486	0:43cce7b453d0	914	p = &fs->win[clst * 4 % SS(fs)];
oks486	0:43cce7b453d0	915	val \|= LD_DWORD(p) & 0xF0000000;
oks486	0:43cce7b453d0	916	ST_DWORD(p, val);
oks486	0:43cce7b453d0	917	fs->wflag = 1;
oks486	0:43cce7b453d0	918	break;
oks486	0:43cce7b453d0	919
oks486	0:43cce7b453d0	920	default :
oks486	0:43cce7b453d0	921	res = FR_INT_ERR;
oks486	0:43cce7b453d0	922	}
oks486	0:43cce7b453d0	923	}
oks486	0:43cce7b453d0	924
oks486	0:43cce7b453d0	925	return res;
oks486	0:43cce7b453d0	926	}
oks486	0:43cce7b453d0	927	#endif /* !_FS_READONLY */
oks486	0:43cce7b453d0	928
oks486	0:43cce7b453d0	929
oks486	0:43cce7b453d0	930
oks486	0:43cce7b453d0	931
oks486	0:43cce7b453d0	932	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	933	/* FAT handling - Remove a cluster chain */
oks486	0:43cce7b453d0	934	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	935	#if !_FS_READONLY
oks486	0:43cce7b453d0	936	static
oks486	0:43cce7b453d0	937	FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */
oks486	0:43cce7b453d0	938	FATFS* fs, /* File system object */
oks486	0:43cce7b453d0	939	DWORD clst /* Cluster# to remove a chain from */
oks486	0:43cce7b453d0	940	)
oks486	0:43cce7b453d0	941	{
oks486	0:43cce7b453d0	942	FRESULT res;
oks486	0:43cce7b453d0	943	DWORD nxt;
oks486	0:43cce7b453d0	944	#if _USE_TRIM
oks486	0:43cce7b453d0	945	DWORD scl = clst, ecl = clst, rt[2];
oks486	0:43cce7b453d0	946	#endif
oks486	0:43cce7b453d0	947
oks486	0:43cce7b453d0	948	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
oks486	0:43cce7b453d0	949	res = FR_INT_ERR;
oks486	0:43cce7b453d0	950
oks486	0:43cce7b453d0	951	} else {
oks486	0:43cce7b453d0	952	res = FR_OK;
oks486	0:43cce7b453d0	953	while (clst < fs->n_fatent) { /* Not a last link? */
oks486	0:43cce7b453d0	954	nxt = get_fat(fs, clst); /* Get cluster status */
oks486	0:43cce7b453d0	955	if (nxt == 0) break; /* Empty cluster? */
oks486	0:43cce7b453d0	956	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
oks486	0:43cce7b453d0	957	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
oks486	0:43cce7b453d0	958	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
oks486	0:43cce7b453d0	959	if (res != FR_OK) break;
oks486	0:43cce7b453d0	960	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSINFO */
oks486	0:43cce7b453d0	961	fs->free_clust++;
oks486	0:43cce7b453d0	962	fs->fsi_flag \|= 1;
oks486	0:43cce7b453d0	963	}
oks486	0:43cce7b453d0	964	#if _USE_TRIM
oks486	0:43cce7b453d0	965	if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
oks486	0:43cce7b453d0	966	ecl = nxt;
oks486	0:43cce7b453d0	967	} else { /* End of contiguous clusters */
oks486	0:43cce7b453d0	968	rt[0] = clust2sect(fs, scl); /* Start sector */
oks486	0:43cce7b453d0	969	rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
oks486	0:43cce7b453d0	970	disk_ioctl(fs->drv, CTRL_TRIM, rt); /* Erase the block */
oks486	0:43cce7b453d0	971	scl = ecl = nxt;
oks486	0:43cce7b453d0	972	}
oks486	0:43cce7b453d0	973	#endif
oks486	0:43cce7b453d0	974	clst = nxt; /* Next cluster */
oks486	0:43cce7b453d0	975	}
oks486	0:43cce7b453d0	976	}
oks486	0:43cce7b453d0	977
oks486	0:43cce7b453d0	978	return res;
oks486	0:43cce7b453d0	979	}
oks486	0:43cce7b453d0	980	#endif
oks486	0:43cce7b453d0	981
oks486	0:43cce7b453d0	982
oks486	0:43cce7b453d0	983
oks486	0:43cce7b453d0	984
oks486	0:43cce7b453d0	985	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	986	/* FAT handling - Stretch or Create a cluster chain */
oks486	0:43cce7b453d0	987	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	988	#if !_FS_READONLY
oks486	0:43cce7b453d0	989	static
oks486	0:43cce7b453d0	990	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
oks486	0:43cce7b453d0	991	FATFS* fs, /* File system object */
oks486	0:43cce7b453d0	992	DWORD clst /* Cluster# to stretch, 0:Create a new chain */
oks486	0:43cce7b453d0	993	)
oks486	0:43cce7b453d0	994	{
oks486	0:43cce7b453d0	995	DWORD cs, ncl, scl;
oks486	0:43cce7b453d0	996	FRESULT res;
oks486	0:43cce7b453d0	997
oks486	0:43cce7b453d0	998
oks486	0:43cce7b453d0	999	if (clst == 0) { /* Create a new chain */
oks486	0:43cce7b453d0	1000	scl = fs->last_clust; /* Get suggested start point */
oks486	0:43cce7b453d0	1001	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
oks486	0:43cce7b453d0	1002	}
oks486	0:43cce7b453d0	1003	else { /* Stretch the current chain */
oks486	0:43cce7b453d0	1004	cs = get_fat(fs, clst); /* Check the cluster status */
oks486	0:43cce7b453d0	1005	if (cs < 2) return 1; /* Invalid value */
oks486	0:43cce7b453d0	1006	if (cs == 0xFFFFFFFF) return cs; /* A disk error occurred */
oks486	0:43cce7b453d0	1007	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
oks486	0:43cce7b453d0	1008	scl = clst;
oks486	0:43cce7b453d0	1009	}
oks486	0:43cce7b453d0	1010
oks486	0:43cce7b453d0	1011	ncl = scl; /* Start cluster */
oks486	0:43cce7b453d0	1012	for (;;) {
oks486	0:43cce7b453d0	1013	ncl++; /* Next cluster */
oks486	0:43cce7b453d0	1014	if (ncl >= fs->n_fatent) { /* Check wrap around */
oks486	0:43cce7b453d0	1015	ncl = 2;
oks486	0:43cce7b453d0	1016	if (ncl > scl) return 0; /* No free cluster */
oks486	0:43cce7b453d0	1017	}
oks486	0:43cce7b453d0	1018	cs = get_fat(fs, ncl); /* Get the cluster status */
oks486	0:43cce7b453d0	1019	if (cs == 0) break; /* Found a free cluster */
oks486	0:43cce7b453d0	1020	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
oks486	0:43cce7b453d0	1021	return cs;
oks486	0:43cce7b453d0	1022	if (ncl == scl) return 0; /* No free cluster */
oks486	0:43cce7b453d0	1023	}
oks486	0:43cce7b453d0	1024
oks486	0:43cce7b453d0	1025	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
oks486	0:43cce7b453d0	1026	if (res == FR_OK && clst != 0) {
oks486	0:43cce7b453d0	1027	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
oks486	0:43cce7b453d0	1028	}
oks486	0:43cce7b453d0	1029	if (res == FR_OK) {
oks486	0:43cce7b453d0	1030	fs->last_clust = ncl; /* Update FSINFO */
oks486	0:43cce7b453d0	1031	if (fs->free_clust != 0xFFFFFFFF) {
oks486	0:43cce7b453d0	1032	fs->free_clust--;
oks486	0:43cce7b453d0	1033	fs->fsi_flag \|= 1;
oks486	0:43cce7b453d0	1034	}
oks486	0:43cce7b453d0	1035	} else {
oks486	0:43cce7b453d0	1036	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
oks486	0:43cce7b453d0	1037	}
oks486	0:43cce7b453d0	1038
oks486	0:43cce7b453d0	1039	return ncl; /* Return new cluster number or error code */
oks486	0:43cce7b453d0	1040	}
oks486	0:43cce7b453d0	1041	#endif /* !_FS_READONLY */
oks486	0:43cce7b453d0	1042
oks486	0:43cce7b453d0	1043
oks486	0:43cce7b453d0	1044
oks486	0:43cce7b453d0	1045
oks486	0:43cce7b453d0	1046	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1047	/* FAT handling - Convert offset into cluster with link map table */
oks486	0:43cce7b453d0	1048	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1049
oks486	0:43cce7b453d0	1050	#if _USE_FASTSEEK
oks486	0:43cce7b453d0	1051	static
oks486	0:43cce7b453d0	1052	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
oks486	0:43cce7b453d0	1053	FIL* fp, /* Pointer to the file object */
oks486	0:43cce7b453d0	1054	DWORD ofs /* File offset to be converted to cluster# */
oks486	0:43cce7b453d0	1055	)
oks486	0:43cce7b453d0	1056	{
oks486	0:43cce7b453d0	1057	DWORD cl, ncl, *tbl;
oks486	0:43cce7b453d0	1058
oks486	0:43cce7b453d0	1059
oks486	0:43cce7b453d0	1060	tbl = fp->cltbl + 1; /* Top of CLMT */
oks486	0:43cce7b453d0	1061	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
oks486	0:43cce7b453d0	1062	for (;;) {
oks486	0:43cce7b453d0	1063	ncl = tbl++; / Number of cluters in the fragment */
oks486	0:43cce7b453d0	1064	if (!ncl) return 0; /* End of table? (error) */
oks486	0:43cce7b453d0	1065	if (cl < ncl) break; /* In this fragment? */
oks486	0:43cce7b453d0	1066	cl -= ncl; tbl++; /* Next fragment */
oks486	0:43cce7b453d0	1067	}
oks486	0:43cce7b453d0	1068	return cl + tbl; / Return the cluster number */
oks486	0:43cce7b453d0	1069	}
oks486	0:43cce7b453d0	1070	#endif /* _USE_FASTSEEK */
oks486	0:43cce7b453d0	1071
oks486	0:43cce7b453d0	1072
oks486	0:43cce7b453d0	1073
oks486	0:43cce7b453d0	1074
oks486	0:43cce7b453d0	1075	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1076	/* Directory handling - Set directory index */
oks486	0:43cce7b453d0	1077	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1078
oks486	0:43cce7b453d0	1079	static
oks486	0:43cce7b453d0	1080	FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */
oks486	0:43cce7b453d0	1081	DIR* dp, /* Pointer to directory object */
oks486	0:43cce7b453d0	1082	UINT idx /* Index of directory table */
oks486	0:43cce7b453d0	1083	)
oks486	0:43cce7b453d0	1084	{
oks486	0:43cce7b453d0	1085	DWORD clst, sect;
oks486	0:43cce7b453d0	1086	UINT ic;
oks486	0:43cce7b453d0	1087
oks486	0:43cce7b453d0	1088
oks486	0:43cce7b453d0	1089	dp->index = (WORD)idx; /* Current index */
oks486	0:43cce7b453d0	1090	clst = dp->sclust; /* Table start cluster (0:root) */
oks486	0:43cce7b453d0	1091	if (clst == 1 \|\| clst >= dp->fs->n_fatent) /* Check start cluster range */
oks486	0:43cce7b453d0	1092	return FR_INT_ERR;
oks486	0:43cce7b453d0	1093	if (!clst && dp->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
oks486	0:43cce7b453d0	1094	clst = dp->fs->dirbase;
oks486	0:43cce7b453d0	1095
oks486	0:43cce7b453d0	1096	if (clst == 0) { /* Static table (root-directory in FAT12/16) */
oks486	0:43cce7b453d0	1097	if (idx >= dp->fs->n_rootdir) /* Is index out of range? */
oks486	0:43cce7b453d0	1098	return FR_INT_ERR;
oks486	0:43cce7b453d0	1099	sect = dp->fs->dirbase;
oks486	0:43cce7b453d0	1100	}
oks486	0:43cce7b453d0	1101	else { /* Dynamic table (root-directory in FAT32 or sub-directory) */
oks486	0:43cce7b453d0	1102	ic = SS(dp->fs) / SZ_DIRE * dp->fs->csize; /* Entries per cluster */
oks486	0:43cce7b453d0	1103	while (idx >= ic) { /* Follow cluster chain */
oks486	0:43cce7b453d0	1104	clst = get_fat(dp->fs, clst); /* Get next cluster */
oks486	0:43cce7b453d0	1105	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
oks486	0:43cce7b453d0	1106	if (clst < 2 \|\| clst >= dp->fs->n_fatent) /* Reached to end of table or internal error */
oks486	0:43cce7b453d0	1107	return FR_INT_ERR;
oks486	0:43cce7b453d0	1108	idx -= ic;
oks486	0:43cce7b453d0	1109	}
oks486	0:43cce7b453d0	1110	sect = clust2sect(dp->fs, clst);
oks486	0:43cce7b453d0	1111	}
oks486	0:43cce7b453d0	1112	dp->clust = clst; /* Current cluster# */
oks486	0:43cce7b453d0	1113	if (!sect) return FR_INT_ERR;
oks486	0:43cce7b453d0	1114	dp->sect = sect + idx / (SS(dp->fs) / SZ_DIRE); /* Sector# of the directory entry */
oks486	0:43cce7b453d0	1115	dp->dir = dp->fs->win + (idx % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Ptr to the entry in the sector */
oks486	0:43cce7b453d0	1116
oks486	0:43cce7b453d0	1117	return FR_OK;
oks486	0:43cce7b453d0	1118	}
oks486	0:43cce7b453d0	1119
oks486	0:43cce7b453d0	1120
oks486	0:43cce7b453d0	1121
oks486	0:43cce7b453d0	1122
oks486	0:43cce7b453d0	1123	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1124	/* Directory handling - Move directory table index next */
oks486	0:43cce7b453d0	1125	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1126
oks486	0:43cce7b453d0	1127	static
oks486	0:43cce7b453d0	1128	FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
oks486	0:43cce7b453d0	1129	DIR* dp, /* Pointer to the directory object */
oks486	0:43cce7b453d0	1130	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
oks486	0:43cce7b453d0	1131	)
oks486	0:43cce7b453d0	1132	{
oks486	0:43cce7b453d0	1133	DWORD clst;
oks486	0:43cce7b453d0	1134	UINT i;
oks486	0:43cce7b453d0	1135	#if !_FS_READONLY
oks486	0:43cce7b453d0	1136	UINT c;
oks486	0:43cce7b453d0	1137	#endif
oks486	0:43cce7b453d0	1138
oks486	0:43cce7b453d0	1139
oks486	0:43cce7b453d0	1140	i = dp->index + 1;
oks486	0:43cce7b453d0	1141	if (!(i & 0xFFFF) \|\| !dp->sect) /* Report EOT when index has reached 65535 */
oks486	0:43cce7b453d0	1142	return FR_NO_FILE;
oks486	0:43cce7b453d0	1143
oks486	0:43cce7b453d0	1144	if (!(i % (SS(dp->fs) / SZ_DIRE))) { /* Sector changed? */
oks486	0:43cce7b453d0	1145	dp->sect++; /* Next sector */
oks486	0:43cce7b453d0	1146
oks486	0:43cce7b453d0	1147	if (!dp->clust) { /* Static table */
oks486	0:43cce7b453d0	1148	if (i >= dp->fs->n_rootdir) /* Report EOT if it reached end of static table */
oks486	0:43cce7b453d0	1149	return FR_NO_FILE;
oks486	0:43cce7b453d0	1150	}
oks486	0:43cce7b453d0	1151	else { /* Dynamic table */
oks486	0:43cce7b453d0	1152	if (((i / (SS(dp->fs) / SZ_DIRE)) & (dp->fs->csize - 1)) == 0) { /* Cluster changed? */
oks486	0:43cce7b453d0	1153	clst = get_fat(dp->fs, dp->clust); /* Get next cluster */
oks486	0:43cce7b453d0	1154	if (clst <= 1) return FR_INT_ERR;
oks486	0:43cce7b453d0	1155	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
oks486	0:43cce7b453d0	1156	if (clst >= dp->fs->n_fatent) { /* If it reached end of dynamic table, */
oks486	0:43cce7b453d0	1157	#if !_FS_READONLY
oks486	0:43cce7b453d0	1158	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT */
oks486	0:43cce7b453d0	1159	clst = create_chain(dp->fs, dp->clust); /* Stretch cluster chain */
oks486	0:43cce7b453d0	1160	if (clst == 0) return FR_DENIED; /* No free cluster */
oks486	0:43cce7b453d0	1161	if (clst == 1) return FR_INT_ERR;
oks486	0:43cce7b453d0	1162	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
oks486	0:43cce7b453d0	1163	/* Clean-up stretched table */
oks486	0:43cce7b453d0	1164	if (sync_window(dp->fs)) return FR_DISK_ERR;/* Flush disk access window */
oks486	0:43cce7b453d0	1165	mem_set(dp->fs->win, 0, SS(dp->fs)); /* Clear window buffer */
oks486	0:43cce7b453d0	1166	dp->fs->winsect = clust2sect(dp->fs, clst); /* Cluster start sector */
oks486	0:43cce7b453d0	1167	for (c = 0; c < dp->fs->csize; c++) { /* Fill the new cluster with 0 */
oks486	0:43cce7b453d0	1168	dp->fs->wflag = 1;
oks486	0:43cce7b453d0	1169	if (sync_window(dp->fs)) return FR_DISK_ERR;
oks486	0:43cce7b453d0	1170	dp->fs->winsect++;
oks486	0:43cce7b453d0	1171	}
oks486	0:43cce7b453d0	1172	dp->fs->winsect -= c; /* Rewind window offset */
oks486	0:43cce7b453d0	1173	#else
oks486	0:43cce7b453d0	1174	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT (this is to suppress warning) */
oks486	0:43cce7b453d0	1175	return FR_NO_FILE; /* Report EOT */
oks486	0:43cce7b453d0	1176	#endif
oks486	0:43cce7b453d0	1177	}
oks486	0:43cce7b453d0	1178	dp->clust = clst; /* Initialize data for new cluster */
oks486	0:43cce7b453d0	1179	dp->sect = clust2sect(dp->fs, clst);
oks486	0:43cce7b453d0	1180	}
oks486	0:43cce7b453d0	1181	}
oks486	0:43cce7b453d0	1182	}
oks486	0:43cce7b453d0	1183
oks486	0:43cce7b453d0	1184	dp->index = (WORD)i; /* Current index */
oks486	0:43cce7b453d0	1185	dp->dir = dp->fs->win + (i % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Current entry in the window */
oks486	0:43cce7b453d0	1186
oks486	0:43cce7b453d0	1187	return FR_OK;
oks486	0:43cce7b453d0	1188	}
oks486	0:43cce7b453d0	1189
oks486	0:43cce7b453d0	1190
oks486	0:43cce7b453d0	1191
oks486	0:43cce7b453d0	1192
oks486	0:43cce7b453d0	1193	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1194	/* Directory handling - Reserve directory entry */
oks486	0:43cce7b453d0	1195	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1196
oks486	0:43cce7b453d0	1197	#if !_FS_READONLY
oks486	0:43cce7b453d0	1198	static
oks486	0:43cce7b453d0	1199	FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */
oks486	0:43cce7b453d0	1200	DIR* dp, /* Pointer to the directory object */
oks486	0:43cce7b453d0	1201	UINT nent /* Number of contiguous entries to allocate (1-21) */
oks486	0:43cce7b453d0	1202	)
oks486	0:43cce7b453d0	1203	{
oks486	0:43cce7b453d0	1204	FRESULT res;
oks486	0:43cce7b453d0	1205	UINT n;
oks486	0:43cce7b453d0	1206
oks486	0:43cce7b453d0	1207
oks486	0:43cce7b453d0	1208	res = dir_sdi(dp, 0);
oks486	0:43cce7b453d0	1209	if (res == FR_OK) {
oks486	0:43cce7b453d0	1210	n = 0;
oks486	0:43cce7b453d0	1211	do {
oks486	0:43cce7b453d0	1212	res = move_window(dp->fs, dp->sect);
oks486	0:43cce7b453d0	1213	if (res != FR_OK) break;
oks486	0:43cce7b453d0	1214	if (dp->dir[0] == DDEM \|\| dp->dir[0] == 0) { /* Is it a free entry? */
oks486	0:43cce7b453d0	1215	if (++n == nent) break; /* A block of contiguous free entries is found */
oks486	0:43cce7b453d0	1216	} else {
oks486	0:43cce7b453d0	1217	n = 0; /* Not a blank entry. Restart to search */
oks486	0:43cce7b453d0	1218	}
oks486	0:43cce7b453d0	1219	res = dir_next(dp, 1); /* Next entry with table stretch enabled */
oks486	0:43cce7b453d0	1220	} while (res == FR_OK);
oks486	0:43cce7b453d0	1221	}
oks486	0:43cce7b453d0	1222	if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */
oks486	0:43cce7b453d0	1223	return res;
oks486	0:43cce7b453d0	1224	}
oks486	0:43cce7b453d0	1225	#endif
oks486	0:43cce7b453d0	1226
oks486	0:43cce7b453d0	1227
oks486	0:43cce7b453d0	1228
oks486	0:43cce7b453d0	1229
oks486	0:43cce7b453d0	1230	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1231	/* Directory handling - Load/Store start cluster number */
oks486	0:43cce7b453d0	1232	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1233
oks486	0:43cce7b453d0	1234	static
oks486	0:43cce7b453d0	1235	DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */
oks486	0:43cce7b453d0	1236	FATFS* fs, /* Pointer to the fs object */
oks486	0:43cce7b453d0	1237	const BYTE* dir /* Pointer to the SFN entry */
oks486	0:43cce7b453d0	1238	)
oks486	0:43cce7b453d0	1239	{
oks486	0:43cce7b453d0	1240	DWORD cl;
oks486	0:43cce7b453d0	1241
oks486	0:43cce7b453d0	1242	cl = LD_WORD(dir + DIR_FstClusLO);
oks486	0:43cce7b453d0	1243	if (fs->fs_type == FS_FAT32)
oks486	0:43cce7b453d0	1244	cl \|= (DWORD)LD_WORD(dir + DIR_FstClusHI) << 16;
oks486	0:43cce7b453d0	1245
oks486	0:43cce7b453d0	1246	return cl;
oks486	0:43cce7b453d0	1247	}
oks486	0:43cce7b453d0	1248
oks486	0:43cce7b453d0	1249
oks486	0:43cce7b453d0	1250	#if !_FS_READONLY
oks486	0:43cce7b453d0	1251	static
oks486	0:43cce7b453d0	1252	void st_clust (
oks486	0:43cce7b453d0	1253	BYTE* dir, /* Pointer to the SFN entry */
oks486	0:43cce7b453d0	1254	DWORD cl /* Value to be set */
oks486	0:43cce7b453d0	1255	)
oks486	0:43cce7b453d0	1256	{
oks486	0:43cce7b453d0	1257	ST_WORD(dir + DIR_FstClusLO, cl);
oks486	0:43cce7b453d0	1258	ST_WORD(dir + DIR_FstClusHI, cl >> 16);
oks486	0:43cce7b453d0	1259	}
oks486	0:43cce7b453d0	1260	#endif
oks486	0:43cce7b453d0	1261
oks486	0:43cce7b453d0	1262
oks486	0:43cce7b453d0	1263
oks486	0:43cce7b453d0	1264
oks486	0:43cce7b453d0	1265	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1266	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
oks486	0:43cce7b453d0	1267	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1268	#if _USE_LFN
oks486	0:43cce7b453d0	1269	static
oks486	0:43cce7b453d0	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 */
oks486	0:43cce7b453d0	1271
oks486	0:43cce7b453d0	1272
oks486	0:43cce7b453d0	1273	static
oks486	0:43cce7b453d0	1274	int cmp_lfn ( /* 1:matched, 0:not matched */
oks486	0:43cce7b453d0	1275	WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */
oks486	0:43cce7b453d0	1276	BYTE* dir /* Pointer to the directory entry containing the part of LFN */
oks486	0:43cce7b453d0	1277	)
oks486	0:43cce7b453d0	1278	{
oks486	0:43cce7b453d0	1279	UINT i, s;
oks486	0:43cce7b453d0	1280	WCHAR wc, uc;
oks486	0:43cce7b453d0	1281
oks486	0:43cce7b453d0	1282
oks486	0:43cce7b453d0	1283	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
oks486	0:43cce7b453d0	1284
oks486	0:43cce7b453d0	1285	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
oks486	0:43cce7b453d0	1286
oks486	0:43cce7b453d0	1287	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
oks486	0:43cce7b453d0	1288	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
oks486	0:43cce7b453d0	1289	if (wc) {
oks486	0:43cce7b453d0	1290	if (i >= _MAX_LFN \|\| ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) /* Compare it */
oks486	0:43cce7b453d0	1291	return 0; /* Not matched */
oks486	0:43cce7b453d0	1292	wc = uc;
oks486	0:43cce7b453d0	1293	} else {
oks486	0:43cce7b453d0	1294	if (uc != 0xFFFF) return 0; /* Check filler */
oks486	0:43cce7b453d0	1295	}
oks486	0:43cce7b453d0	1296	}
oks486	0:43cce7b453d0	1297
oks486	0:43cce7b453d0	1298	if ((dir[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) /* Last segment matched but different length */
oks486	0:43cce7b453d0	1299	return 0;
oks486	0:43cce7b453d0	1300
oks486	0:43cce7b453d0	1301	return 1; /* The part of LFN matched */
oks486	0:43cce7b453d0	1302	}
oks486	0:43cce7b453d0	1303
oks486	0:43cce7b453d0	1304
oks486	0:43cce7b453d0	1305
oks486	0:43cce7b453d0	1306	static
oks486	0:43cce7b453d0	1307	int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */
oks486	0:43cce7b453d0	1308	WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
oks486	0:43cce7b453d0	1309	BYTE* dir /* Pointer to the LFN entry */
oks486	0:43cce7b453d0	1310	)
oks486	0:43cce7b453d0	1311	{
oks486	0:43cce7b453d0	1312	UINT i, s;
oks486	0:43cce7b453d0	1313	WCHAR wc, uc;
oks486	0:43cce7b453d0	1314
oks486	0:43cce7b453d0	1315
oks486	0:43cce7b453d0	1316	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
oks486	0:43cce7b453d0	1317
oks486	0:43cce7b453d0	1318	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
oks486	0:43cce7b453d0	1319
oks486	0:43cce7b453d0	1320	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
oks486	0:43cce7b453d0	1321	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
oks486	0:43cce7b453d0	1322	if (wc) {
oks486	0:43cce7b453d0	1323	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
oks486	0:43cce7b453d0	1324	lfnbuf[i++] = wc = uc; /* Store it */
oks486	0:43cce7b453d0	1325	} else {
oks486	0:43cce7b453d0	1326	if (uc != 0xFFFF) return 0; /* Check filler */
oks486	0:43cce7b453d0	1327	}
oks486	0:43cce7b453d0	1328	}
oks486	0:43cce7b453d0	1329
oks486	0:43cce7b453d0	1330	if (dir[LDIR_Ord] & LLEF) { /* Put terminator if it is the last LFN part */
oks486	0:43cce7b453d0	1331	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
oks486	0:43cce7b453d0	1332	lfnbuf[i] = 0;
oks486	0:43cce7b453d0	1333	}
oks486	0:43cce7b453d0	1334
oks486	0:43cce7b453d0	1335	return 1; /* The part of LFN is valid */
oks486	0:43cce7b453d0	1336	}
oks486	0:43cce7b453d0	1337
oks486	0:43cce7b453d0	1338
oks486	0:43cce7b453d0	1339	#if !_FS_READONLY
oks486	0:43cce7b453d0	1340	static
oks486	0:43cce7b453d0	1341	void fit_lfn (
oks486	0:43cce7b453d0	1342	const WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
oks486	0:43cce7b453d0	1343	BYTE* dir, /* Pointer to the LFN entry to be processed */
oks486	0:43cce7b453d0	1344	BYTE ord, /* LFN order (1-20) */
oks486	0:43cce7b453d0	1345	BYTE sum /* Checksum of the corresponding SFN */
oks486	0:43cce7b453d0	1346	)
oks486	0:43cce7b453d0	1347	{
oks486	0:43cce7b453d0	1348	UINT i, s;
oks486	0:43cce7b453d0	1349	WCHAR wc;
oks486	0:43cce7b453d0	1350
oks486	0:43cce7b453d0	1351
oks486	0:43cce7b453d0	1352	dir[LDIR_Chksum] = sum; /* Set checksum */
oks486	0:43cce7b453d0	1353	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
oks486	0:43cce7b453d0	1354	dir[LDIR_Type] = 0;
oks486	0:43cce7b453d0	1355	ST_WORD(dir + LDIR_FstClusLO, 0);
oks486	0:43cce7b453d0	1356
oks486	0:43cce7b453d0	1357	i = (ord - 1) * 13; /* Get offset in the LFN working buffer */
oks486	0:43cce7b453d0	1358	s = wc = 0;
oks486	0:43cce7b453d0	1359	do {
oks486	0:43cce7b453d0	1360	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective character */
oks486	0:43cce7b453d0	1361	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
oks486	0:43cce7b453d0	1362	if (!wc) wc = 0xFFFF; /* Padding characters following last character */
oks486	0:43cce7b453d0	1363	} while (++s < 13);
oks486	0:43cce7b453d0	1364	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLEF; /* Bottom LFN part is the start of LFN sequence */
oks486	0:43cce7b453d0	1365	dir[LDIR_Ord] = ord; /* Set the LFN order */
oks486	0:43cce7b453d0	1366	}
oks486	0:43cce7b453d0	1367
oks486	0:43cce7b453d0	1368	#endif
oks486	0:43cce7b453d0	1369	#endif
oks486	0:43cce7b453d0	1370
oks486	0:43cce7b453d0	1371
oks486	0:43cce7b453d0	1372
oks486	0:43cce7b453d0	1373
oks486	0:43cce7b453d0	1374	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1375	/* Create numbered name */
oks486	0:43cce7b453d0	1376	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1377	#if _USE_LFN
oks486	0:43cce7b453d0	1378	static
oks486	0:43cce7b453d0	1379	void gen_numname (
oks486	0:43cce7b453d0	1380	BYTE* dst, /* Pointer to the buffer to store numbered SFN */
oks486	0:43cce7b453d0	1381	const BYTE* src, /* Pointer to SFN */
oks486	0:43cce7b453d0	1382	const WCHAR* lfn, /* Pointer to LFN */
oks486	0:43cce7b453d0	1383	UINT seq /* Sequence number */
oks486	0:43cce7b453d0	1384	)
oks486	0:43cce7b453d0	1385	{
oks486	0:43cce7b453d0	1386	BYTE ns[8], c;
oks486	0:43cce7b453d0	1387	UINT i, j;
oks486	0:43cce7b453d0	1388	WCHAR wc;
oks486	0:43cce7b453d0	1389	DWORD sr;
oks486	0:43cce7b453d0	1390
oks486	0:43cce7b453d0	1391
oks486	0:43cce7b453d0	1392	mem_cpy(dst, src, 11);
oks486	0:43cce7b453d0	1393
oks486	0:43cce7b453d0	1394	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
oks486	0:43cce7b453d0	1395	sr = seq;
oks486	0:43cce7b453d0	1396	while (lfn) { / Create a CRC */
oks486	0:43cce7b453d0	1397	wc = *lfn++;
oks486	0:43cce7b453d0	1398	for (i = 0; i < 16; i++) {
oks486	0:43cce7b453d0	1399	sr = (sr << 1) + (wc & 1);
oks486	0:43cce7b453d0	1400	wc >>= 1;
oks486	0:43cce7b453d0	1401	if (sr & 0x10000) sr ^= 0x11021;
oks486	0:43cce7b453d0	1402	}
oks486	0:43cce7b453d0	1403	}
oks486	0:43cce7b453d0	1404	seq = (UINT)sr;
oks486	0:43cce7b453d0	1405	}
oks486	0:43cce7b453d0	1406
oks486	0:43cce7b453d0	1407	/* itoa (hexdecimal) */
oks486	0:43cce7b453d0	1408	i = 7;
oks486	0:43cce7b453d0	1409	do {
oks486	0:43cce7b453d0	1410	c = (seq % 16) + '0';
oks486	0:43cce7b453d0	1411	if (c > '9') c += 7;
oks486	0:43cce7b453d0	1412	ns[i--] = c;
oks486	0:43cce7b453d0	1413	seq /= 16;
oks486	0:43cce7b453d0	1414	} while (seq);
oks486	0:43cce7b453d0	1415	ns[i] = '~';
oks486	0:43cce7b453d0	1416
oks486	0:43cce7b453d0	1417	/* Append the number */
oks486	0:43cce7b453d0	1418	for (j = 0; j < i && dst[j] != ' '; j++) {
oks486	0:43cce7b453d0	1419	if (IsDBCS1(dst[j])) {
oks486	0:43cce7b453d0	1420	if (j == i - 1) break;
oks486	0:43cce7b453d0	1421	j++;
oks486	0:43cce7b453d0	1422	}
oks486	0:43cce7b453d0	1423	}
oks486	0:43cce7b453d0	1424	do {
oks486	0:43cce7b453d0	1425	dst[j++] = (i < 8) ? ns[i++] : ' ';
oks486	0:43cce7b453d0	1426	} while (j < 8);
oks486	0:43cce7b453d0	1427	}
oks486	0:43cce7b453d0	1428	#endif
oks486	0:43cce7b453d0	1429
oks486	0:43cce7b453d0	1430
oks486	0:43cce7b453d0	1431
oks486	0:43cce7b453d0	1432
oks486	0:43cce7b453d0	1433	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1434	/* Calculate checksum of an SFN entry */
oks486	0:43cce7b453d0	1435	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1436	#if _USE_LFN
oks486	0:43cce7b453d0	1437	static
oks486	0:43cce7b453d0	1438	BYTE sum_sfn (
oks486	0:43cce7b453d0	1439	const BYTE* dir /* Pointer to the SFN entry */
oks486	0:43cce7b453d0	1440	)
oks486	0:43cce7b453d0	1441	{
oks486	0:43cce7b453d0	1442	BYTE sum = 0;
oks486	0:43cce7b453d0	1443	UINT n = 11;
oks486	0:43cce7b453d0	1444
oks486	0:43cce7b453d0	1445	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
oks486	0:43cce7b453d0	1446	return sum;
oks486	0:43cce7b453d0	1447	}
oks486	0:43cce7b453d0	1448	#endif
oks486	0:43cce7b453d0	1449
oks486	0:43cce7b453d0	1450
oks486	0:43cce7b453d0	1451
oks486	0:43cce7b453d0	1452
oks486	0:43cce7b453d0	1453	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1454	/* Directory handling - Find an object in the directory */
oks486	0:43cce7b453d0	1455	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1456
oks486	0:43cce7b453d0	1457	static
oks486	0:43cce7b453d0	1458	FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */
oks486	0:43cce7b453d0	1459	DIR* dp /* Pointer to the directory object linked to the file name */
oks486	0:43cce7b453d0	1460	)
oks486	0:43cce7b453d0	1461	{
oks486	0:43cce7b453d0	1462	FRESULT res;
oks486	0:43cce7b453d0	1463	BYTE c, *dir;
oks486	0:43cce7b453d0	1464	#if _USE_LFN
oks486	0:43cce7b453d0	1465	BYTE a, ord, sum;
oks486	0:43cce7b453d0	1466	#endif
oks486	0:43cce7b453d0	1467
oks486	0:43cce7b453d0	1468	res = dir_sdi(dp, 0); /* Rewind directory object */
oks486	0:43cce7b453d0	1469	if (res != FR_OK) return res;
oks486	0:43cce7b453d0	1470
oks486	0:43cce7b453d0	1471	#if _USE_LFN
oks486	0:43cce7b453d0	1472	ord = sum = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
oks486	0:43cce7b453d0	1473	#endif
oks486	0:43cce7b453d0	1474	do {
oks486	0:43cce7b453d0	1475	res = move_window(dp->fs, dp->sect);
oks486	0:43cce7b453d0	1476	if (res != FR_OK) break;
oks486	0:43cce7b453d0	1477	dir = dp->dir; /* Ptr to the directory entry of current index */
oks486	0:43cce7b453d0	1478	c = dir[DIR_Name];
oks486	0:43cce7b453d0	1479	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
oks486	0:43cce7b453d0	1480	#if _USE_LFN /* LFN configuration */
oks486	0:43cce7b453d0	1481	a = dir[DIR_Attr] & AM_MASK;
oks486	0:43cce7b453d0	1482	if (c == DDEM \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
oks486	0:43cce7b453d0	1483	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
oks486	0:43cce7b453d0	1484	} else {
oks486	0:43cce7b453d0	1485	if (a == AM_LFN) { /* An LFN entry is found */
oks486	0:43cce7b453d0	1486	if (dp->lfn) {
oks486	0:43cce7b453d0	1487	if (c & LLEF) { /* Is it start of LFN sequence? */
oks486	0:43cce7b453d0	1488	sum = dir[LDIR_Chksum];
oks486	0:43cce7b453d0	1489	c &= ~LLEF; ord = c; /* LFN start order */
oks486	0:43cce7b453d0	1490	dp->lfn_idx = dp->index; /* Start index of LFN */
oks486	0:43cce7b453d0	1491	}
oks486	0:43cce7b453d0	1492	/* Check validity of the LFN entry and compare it with given name */
oks486	0:43cce7b453d0	1493	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
oks486	0:43cce7b453d0	1494	}
oks486	0:43cce7b453d0	1495	} else { /* An SFN entry is found */
oks486	0:43cce7b453d0	1496	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
oks486	0:43cce7b453d0	1497	if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(dir, dp->fn, 11)) break; /* SFN matched? */
oks486	0:43cce7b453d0	1498	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
oks486	0:43cce7b453d0	1499	}
oks486	0:43cce7b453d0	1500	}
oks486	0:43cce7b453d0	1501	#else /* Non LFN configuration */
oks486	0:43cce7b453d0	1502	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dp->fn, 11)) /* Is it a valid entry? */
oks486	0:43cce7b453d0	1503	break;
oks486	0:43cce7b453d0	1504	#endif
oks486	0:43cce7b453d0	1505	res = dir_next(dp, 0); /* Next entry */
oks486	0:43cce7b453d0	1506	} while (res == FR_OK);
oks486	0:43cce7b453d0	1507
oks486	0:43cce7b453d0	1508	return res;
oks486	0:43cce7b453d0	1509	}
oks486	0:43cce7b453d0	1510
oks486	0:43cce7b453d0	1511
oks486	0:43cce7b453d0	1512
oks486	0:43cce7b453d0	1513
oks486	0:43cce7b453d0	1514	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1515	/* Read an object from the directory */
oks486	0:43cce7b453d0	1516	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1517	#if _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2
oks486	0:43cce7b453d0	1518	static
oks486	0:43cce7b453d0	1519	FRESULT dir_read (
oks486	0:43cce7b453d0	1520	DIR* dp, /* Pointer to the directory object */
oks486	0:43cce7b453d0	1521	int vol /* Filtered by 0:file/directory or 1:volume label */
oks486	0:43cce7b453d0	1522	)
oks486	0:43cce7b453d0	1523	{
oks486	0:43cce7b453d0	1524	FRESULT res;
oks486	0:43cce7b453d0	1525	BYTE a, c, *dir;
oks486	0:43cce7b453d0	1526	#if _USE_LFN
oks486	0:43cce7b453d0	1527	BYTE ord = 0xFF, sum = 0xFF;
oks486	0:43cce7b453d0	1528	#endif
oks486	0:43cce7b453d0	1529
oks486	0:43cce7b453d0	1530	res = FR_NO_FILE;
oks486	0:43cce7b453d0	1531	while (dp->sect) {
oks486	0:43cce7b453d0	1532	res = move_window(dp->fs, dp->sect);
oks486	0:43cce7b453d0	1533	if (res != FR_OK) break;
oks486	0:43cce7b453d0	1534	dir = dp->dir; /* Ptr to the directory entry of current index */
oks486	0:43cce7b453d0	1535	c = dir[DIR_Name];
oks486	0:43cce7b453d0	1536	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
oks486	0:43cce7b453d0	1537	a = dir[DIR_Attr] & AM_MASK;
oks486	0:43cce7b453d0	1538	#if _USE_LFN /* LFN configuration */
oks486	0:43cce7b453d0	1539	if (c == DDEM \|\| (!_FS_RPATH && c == '.') \|\| (int)((a & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */
oks486	0:43cce7b453d0	1540	ord = 0xFF;
oks486	0:43cce7b453d0	1541	} else {
oks486	0:43cce7b453d0	1542	if (a == AM_LFN) { /* An LFN entry is found */
oks486	0:43cce7b453d0	1543	if (c & LLEF) { /* Is it start of LFN sequence? */
oks486	0:43cce7b453d0	1544	sum = dir[LDIR_Chksum];
oks486	0:43cce7b453d0	1545	c &= ~LLEF; ord = c;
oks486	0:43cce7b453d0	1546	dp->lfn_idx = dp->index;
oks486	0:43cce7b453d0	1547	}
oks486	0:43cce7b453d0	1548	/* Check LFN validity and capture it */
oks486	0:43cce7b453d0	1549	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
oks486	0:43cce7b453d0	1550	} else { /* An SFN entry is found */
oks486	0:43cce7b453d0	1551	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
oks486	0:43cce7b453d0	1552	dp->lfn_idx = 0xFFFF; /* It has no LFN. */
oks486	0:43cce7b453d0	1553	break;
oks486	0:43cce7b453d0	1554	}
oks486	0:43cce7b453d0	1555	}
oks486	0:43cce7b453d0	1556	#else /* Non LFN configuration */
oks486	0:43cce7b453d0	1557	if (c != DDEM && (_FS_RPATH \|\| c != '.') && a != AM_LFN && (int)((a & ~AM_ARC) == AM_VOL) == vol) /* Is it a valid entry? */
oks486	0:43cce7b453d0	1558	break;
oks486	0:43cce7b453d0	1559	#endif
oks486	0:43cce7b453d0	1560	res = dir_next(dp, 0); /* Next entry */
oks486	0:43cce7b453d0	1561	if (res != FR_OK) break;
oks486	0:43cce7b453d0	1562	}
oks486	0:43cce7b453d0	1563
oks486	0:43cce7b453d0	1564	if (res != FR_OK) dp->sect = 0;
oks486	0:43cce7b453d0	1565
oks486	0:43cce7b453d0	1566	return res;
oks486	0:43cce7b453d0	1567	}
oks486	0:43cce7b453d0	1568	#endif /* _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2 */
oks486	0:43cce7b453d0	1569
oks486	0:43cce7b453d0	1570
oks486	0:43cce7b453d0	1571
oks486	0:43cce7b453d0	1572
oks486	0:43cce7b453d0	1573	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1574	/* Register an object to the directory */
oks486	0:43cce7b453d0	1575	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1576	#if !_FS_READONLY
oks486	0:43cce7b453d0	1577	static
oks486	0:43cce7b453d0	1578	FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many SFN collision, FR_DISK_ERR:disk error */
oks486	0:43cce7b453d0	1579	DIR* dp /* Target directory with object name to be created */
oks486	0:43cce7b453d0	1580	)
oks486	0:43cce7b453d0	1581	{
oks486	0:43cce7b453d0	1582	FRESULT res;
oks486	0:43cce7b453d0	1583	#if _USE_LFN /* LFN configuration */
oks486	0:43cce7b453d0	1584	UINT n, nent;
oks486	0:43cce7b453d0	1585	BYTE sn[12], *fn, sum;
oks486	0:43cce7b453d0	1586	WCHAR *lfn;
oks486	0:43cce7b453d0	1587
oks486	0:43cce7b453d0	1588
oks486	0:43cce7b453d0	1589	fn = dp->fn; lfn = dp->lfn;
oks486	0:43cce7b453d0	1590	mem_cpy(sn, fn, 12);
oks486	0:43cce7b453d0	1591
oks486	0:43cce7b453d0	1592	if (_FS_RPATH && (sn[NSFLAG] & NS_DOT)) /* Cannot create dot entry */
oks486	0:43cce7b453d0	1593	return FR_INVALID_NAME;
oks486	0:43cce7b453d0	1594
oks486	0:43cce7b453d0	1595	if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
oks486	0:43cce7b453d0	1596	fn[NSFLAG] = 0; dp->lfn = 0; /* Find only SFN */
oks486	0:43cce7b453d0	1597	for (n = 1; n < 100; n++) {
oks486	0:43cce7b453d0	1598	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
oks486	0:43cce7b453d0	1599	res = dir_find(dp); /* Check if the name collides with existing SFN */
oks486	0:43cce7b453d0	1600	if (res != FR_OK) break;
oks486	0:43cce7b453d0	1601	}
oks486	0:43cce7b453d0	1602	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
oks486	0:43cce7b453d0	1603	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
oks486	0:43cce7b453d0	1604	fn[NSFLAG] = sn[NSFLAG]; dp->lfn = lfn;
oks486	0:43cce7b453d0	1605	}
oks486	0:43cce7b453d0	1606
oks486	0:43cce7b453d0	1607	if (sn[NSFLAG] & NS_LFN) { /* When LFN is to be created, allocate entries for an SFN + LFNs. */
oks486	0:43cce7b453d0	1608	for (n = 0; lfn[n]; n++) ;
oks486	0:43cce7b453d0	1609	nent = (n + 25) / 13;
oks486	0:43cce7b453d0	1610	} else { /* Otherwise allocate an entry for an SFN */
oks486	0:43cce7b453d0	1611	nent = 1;
oks486	0:43cce7b453d0	1612	}
oks486	0:43cce7b453d0	1613	res = dir_alloc(dp, nent); /* Allocate entries */
oks486	0:43cce7b453d0	1614
oks486	0:43cce7b453d0	1615	if (res == FR_OK && --nent) { /* Set LFN entry if needed */
oks486	0:43cce7b453d0	1616	res = dir_sdi(dp, dp->index - nent);
oks486	0:43cce7b453d0	1617	if (res == FR_OK) {
oks486	0:43cce7b453d0	1618	sum = sum_sfn(dp->fn); /* Checksum value of the SFN tied to the LFN */
oks486	0:43cce7b453d0	1619	do { /* Store LFN entries in bottom first */
oks486	0:43cce7b453d0	1620	res = move_window(dp->fs, dp->sect);
oks486	0:43cce7b453d0	1621	if (res != FR_OK) break;
oks486	0:43cce7b453d0	1622	fit_lfn(dp->lfn, dp->dir, (BYTE)nent, sum);
oks486	0:43cce7b453d0	1623	dp->fs->wflag = 1;
oks486	0:43cce7b453d0	1624	res = dir_next(dp, 0); /* Next entry */
oks486	0:43cce7b453d0	1625	} while (res == FR_OK && --nent);
oks486	0:43cce7b453d0	1626	}
oks486	0:43cce7b453d0	1627	}
oks486	0:43cce7b453d0	1628	#else /* Non LFN configuration */
oks486	0:43cce7b453d0	1629	res = dir_alloc(dp, 1); /* Allocate an entry for SFN */
oks486	0:43cce7b453d0	1630	#endif
oks486	0:43cce7b453d0	1631
oks486	0:43cce7b453d0	1632	if (res == FR_OK) { /* Set SFN entry */
oks486	0:43cce7b453d0	1633	res = move_window(dp->fs, dp->sect);
oks486	0:43cce7b453d0	1634	if (res == FR_OK) {
oks486	0:43cce7b453d0	1635	mem_set(dp->dir, 0, SZ_DIRE); /* Clean the entry */
oks486	0:43cce7b453d0	1636	mem_cpy(dp->dir, dp->fn, 11); /* Put SFN */
oks486	0:43cce7b453d0	1637	#if _USE_LFN
oks486	0:43cce7b453d0	1638	dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY \| NS_EXT); /* Put NT flag */
oks486	0:43cce7b453d0	1639	#endif
oks486	0:43cce7b453d0	1640	dp->fs->wflag = 1;
oks486	0:43cce7b453d0	1641	}
oks486	0:43cce7b453d0	1642	}
oks486	0:43cce7b453d0	1643
oks486	0:43cce7b453d0	1644	return res;
oks486	0:43cce7b453d0	1645	}
oks486	0:43cce7b453d0	1646	#endif /* !_FS_READONLY */
oks486	0:43cce7b453d0	1647
oks486	0:43cce7b453d0	1648
oks486	0:43cce7b453d0	1649
oks486	0:43cce7b453d0	1650
oks486	0:43cce7b453d0	1651	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1652	/* Remove an object from the directory */
oks486	0:43cce7b453d0	1653	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1654	#if !_FS_READONLY && !_FS_MINIMIZE
oks486	0:43cce7b453d0	1655	static
oks486	0:43cce7b453d0	1656	FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */
oks486	0:43cce7b453d0	1657	DIR* dp /* Directory object pointing the entry to be removed */
oks486	0:43cce7b453d0	1658	)
oks486	0:43cce7b453d0	1659	{
oks486	0:43cce7b453d0	1660	FRESULT res;
oks486	0:43cce7b453d0	1661	#if _USE_LFN /* LFN configuration */
oks486	0:43cce7b453d0	1662	UINT i;
oks486	0:43cce7b453d0	1663
oks486	0:43cce7b453d0	1664	i = dp->index; /* SFN index */
oks486	0:43cce7b453d0	1665	res = dir_sdi(dp, (dp->lfn_idx == 0xFFFF) ? i : dp->lfn_idx); /* Goto the SFN or top of the LFN entries */
oks486	0:43cce7b453d0	1666	if (res == FR_OK) {
oks486	0:43cce7b453d0	1667	do {
oks486	0:43cce7b453d0	1668	res = move_window(dp->fs, dp->sect);
oks486	0:43cce7b453d0	1669	if (res != FR_OK) break;
oks486	0:43cce7b453d0	1670	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
oks486	0:43cce7b453d0	1671	*dp->dir = DDEM;
oks486	0:43cce7b453d0	1672	dp->fs->wflag = 1;
oks486	0:43cce7b453d0	1673	if (dp->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
oks486	0:43cce7b453d0	1674	res = dir_next(dp, 0); /* Next entry */
oks486	0:43cce7b453d0	1675	} while (res == FR_OK);
oks486	0:43cce7b453d0	1676	if (res == FR_NO_FILE) res = FR_INT_ERR;
oks486	0:43cce7b453d0	1677	}
oks486	0:43cce7b453d0	1678
oks486	0:43cce7b453d0	1679	#else /* Non LFN configuration */
oks486	0:43cce7b453d0	1680	res = dir_sdi(dp, dp->index);
oks486	0:43cce7b453d0	1681	if (res == FR_OK) {
oks486	0:43cce7b453d0	1682	res = move_window(dp->fs, dp->sect);
oks486	0:43cce7b453d0	1683	if (res == FR_OK) {
oks486	0:43cce7b453d0	1684	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
oks486	0:43cce7b453d0	1685	*dp->dir = DDEM;
oks486	0:43cce7b453d0	1686	dp->fs->wflag = 1;
oks486	0:43cce7b453d0	1687	}
oks486	0:43cce7b453d0	1688	}
oks486	0:43cce7b453d0	1689	#endif
oks486	0:43cce7b453d0	1690
oks486	0:43cce7b453d0	1691	return res;
oks486	0:43cce7b453d0	1692	}
oks486	0:43cce7b453d0	1693	#endif /* !_FS_READONLY */
oks486	0:43cce7b453d0	1694
oks486	0:43cce7b453d0	1695
oks486	0:43cce7b453d0	1696
oks486	0:43cce7b453d0	1697
oks486	0:43cce7b453d0	1698	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1699	/* Get file information from directory entry */
oks486	0:43cce7b453d0	1700	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1701	#if _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2
oks486	0:43cce7b453d0	1702	static
oks486	0:43cce7b453d0	1703	void get_fileinfo ( /* No return code */
oks486	0:43cce7b453d0	1704	DIR* dp, /* Pointer to the directory object */
oks486	0:43cce7b453d0	1705	FILINFO* fno /* Pointer to the file information to be filled */
oks486	0:43cce7b453d0	1706	)
oks486	0:43cce7b453d0	1707	{
oks486	0:43cce7b453d0	1708	UINT i;
oks486	0:43cce7b453d0	1709	TCHAR *p, c;
oks486	0:43cce7b453d0	1710	BYTE *dir;
oks486	0:43cce7b453d0	1711	#if _USE_LFN
oks486	0:43cce7b453d0	1712	WCHAR w, *lfn;
oks486	0:43cce7b453d0	1713	#endif
oks486	0:43cce7b453d0	1714
oks486	0:43cce7b453d0	1715	p = fno->fname;
oks486	0:43cce7b453d0	1716	if (dp->sect) { /* Get SFN */
oks486	0:43cce7b453d0	1717	dir = dp->dir;
oks486	0:43cce7b453d0	1718	i = 0;
oks486	0:43cce7b453d0	1719	while (i < 11) { /* Copy name body and extension */
oks486	0:43cce7b453d0	1720	c = (TCHAR)dir[i++];
oks486	0:43cce7b453d0	1721	if (c == ' ') continue; /* Skip padding spaces */
oks486	0:43cce7b453d0	1722	if (c == RDDEM) c = (TCHAR)DDEM; /* Restore replaced DDEM character */
oks486	0:43cce7b453d0	1723	if (i == 9) p++ = '.'; / Insert a . if extension is exist */
oks486	0:43cce7b453d0	1724	#if _USE_LFN
oks486	0:43cce7b453d0	1725	if (IsUpper(c) && (dir[DIR_NTres] & (i >= 9 ? NS_EXT : NS_BODY)))
oks486	0:43cce7b453d0	1726	c += 0x20; /* To lower */
oks486	0:43cce7b453d0	1727	#if _LFN_UNICODE
oks486	0:43cce7b453d0	1728	if (IsDBCS1(c) && i != 8 && i != 11 && IsDBCS2(dir[i]))
oks486	0:43cce7b453d0	1729	c = c << 8 \| dir[i++];
oks486	0:43cce7b453d0	1730	c = ff_convert(c, 1); /* OEM -> Unicode */
oks486	0:43cce7b453d0	1731	if (!c) c = '?';
oks486	0:43cce7b453d0	1732	#endif
oks486	0:43cce7b453d0	1733	#endif
oks486	0:43cce7b453d0	1734	*p++ = c;
oks486	0:43cce7b453d0	1735	}
oks486	0:43cce7b453d0	1736	fno->fattrib = dir[DIR_Attr]; /* Attribute */
oks486	0:43cce7b453d0	1737	fno->fsize = LD_DWORD(dir + DIR_FileSize); /* Size */
oks486	0:43cce7b453d0	1738	fno->fdate = LD_WORD(dir + DIR_WrtDate); /* Date */
oks486	0:43cce7b453d0	1739	fno->ftime = LD_WORD(dir + DIR_WrtTime); /* Time */
oks486	0:43cce7b453d0	1740	}
oks486	0:43cce7b453d0	1741	p = 0; / Terminate SFN string by a \0 */
oks486	0:43cce7b453d0	1742
oks486	0:43cce7b453d0	1743	#if _USE_LFN
oks486	0:43cce7b453d0	1744	if (fno->lfname) {
oks486	0:43cce7b453d0	1745	i = 0; p = fno->lfname;
oks486	0:43cce7b453d0	1746	if (dp->sect && fno->lfsize && dp->lfn_idx != 0xFFFF) { /* Get LFN if available */
oks486	0:43cce7b453d0	1747	lfn = dp->lfn;
oks486	0:43cce7b453d0	1748	while ((w = lfn++) != 0) { / Get an LFN character */
oks486	0:43cce7b453d0	1749	#if !_LFN_UNICODE
oks486	0:43cce7b453d0	1750	w = ff_convert(w, 0); /* Unicode -> OEM */
oks486	0:43cce7b453d0	1751	if (!w) { i = 0; break; } /* No LFN if it could not be converted */
oks486	0:43cce7b453d0	1752	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
oks486	0:43cce7b453d0	1753	p[i++] = (TCHAR)(w >> 8);
oks486	0:43cce7b453d0	1754	#endif
oks486	0:43cce7b453d0	1755	if (i >= fno->lfsize - 1) { i = 0; break; } /* No LFN if buffer overflow */
oks486	0:43cce7b453d0	1756	p[i++] = (TCHAR)w;
oks486	0:43cce7b453d0	1757	}
oks486	0:43cce7b453d0	1758	}
oks486	0:43cce7b453d0	1759	p[i] = 0; /* Terminate LFN string by a \0 */
oks486	0:43cce7b453d0	1760	}
oks486	0:43cce7b453d0	1761	#endif
oks486	0:43cce7b453d0	1762	}
oks486	0:43cce7b453d0	1763	#endif /* _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2 */
oks486	0:43cce7b453d0	1764
oks486	0:43cce7b453d0	1765
oks486	0:43cce7b453d0	1766
oks486	0:43cce7b453d0	1767
oks486	0:43cce7b453d0	1768	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1769	/* Pattern matching */
oks486	0:43cce7b453d0	1770	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1771	#if _USE_FIND && _FS_MINIMIZE <= 1
oks486	0:43cce7b453d0	1772	static
oks486	0:43cce7b453d0	1773	WCHAR get_achar ( /* Get a character and advances ptr 1 or 2 */
oks486	0:43cce7b453d0	1774	const TCHAR** ptr /* Pointer to pointer to the SBCS/DBCS/Unicode string */
oks486	0:43cce7b453d0	1775	)
oks486	0:43cce7b453d0	1776	{
oks486	0:43cce7b453d0	1777	WCHAR chr;
oks486	0:43cce7b453d0	1778
oks486	0:43cce7b453d0	1779	#if !_LFN_UNICODE
oks486	0:43cce7b453d0	1780	chr = (BYTE)(ptr)++; /* Get a byte */
oks486	0:43cce7b453d0	1781	if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */
oks486	0:43cce7b453d0	1782	if (IsDBCS1(chr) && IsDBCS2(*ptr)) / Get DBC 2nd byte if needed */
oks486	0:43cce7b453d0	1783	chr = chr << 8 \| (BYTE)(ptr)++;
oks486	0:43cce7b453d0	1784	#ifdef _EXCVT
oks486	0:43cce7b453d0	1785	if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */
oks486	0:43cce7b453d0	1786	#endif
oks486	0:43cce7b453d0	1787	#else
oks486	0:43cce7b453d0	1788	chr = ff_wtoupper((ptr)++); /* Get a word and to upper */
oks486	0:43cce7b453d0	1789	#endif
oks486	0:43cce7b453d0	1790	return chr;
oks486	0:43cce7b453d0	1791	}
oks486	0:43cce7b453d0	1792
oks486	0:43cce7b453d0	1793
oks486	0:43cce7b453d0	1794	static
oks486	0:43cce7b453d0	1795	int pattern_matching ( /* 0:mismatched, 1:matched */
oks486	0:43cce7b453d0	1796	const TCHAR* pat, /* Matching pattern */
oks486	0:43cce7b453d0	1797	const TCHAR* nam, /* String to be tested */
oks486	0:43cce7b453d0	1798	int skip, /* Number of pre-skip chars (number of ?s) */
oks486	0:43cce7b453d0	1799	int inf /* Infinite search (* specified) */
oks486	0:43cce7b453d0	1800	)
oks486	0:43cce7b453d0	1801	{
oks486	0:43cce7b453d0	1802	const TCHAR pp, np;
oks486	0:43cce7b453d0	1803	WCHAR pc, nc;
oks486	0:43cce7b453d0	1804	int nm, nx;
oks486	0:43cce7b453d0	1805
oks486	0:43cce7b453d0	1806
oks486	0:43cce7b453d0	1807	while (skip--) { /* Pre-skip name chars */
oks486	0:43cce7b453d0	1808	if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */
oks486	0:43cce7b453d0	1809	}
oks486	0:43cce7b453d0	1810	if (!pat && inf) return 1; / (short circuit) */
oks486	0:43cce7b453d0	1811
oks486	0:43cce7b453d0	1812	do {
oks486	0:43cce7b453d0	1813	pp = pat; np = nam; /* Top of pattern and name to match */
oks486	0:43cce7b453d0	1814	for (;;) {
oks486	0:43cce7b453d0	1815	if (pp == '?' \|\| pp == '') { / Wildcard? */
oks486	0:43cce7b453d0	1816	nm = nx = 0;
oks486	0:43cce7b453d0	1817	do { /* Analyze the wildcard chars */
oks486	0:43cce7b453d0	1818	if (*pp++ == '?') nm++; else nx = 1;
oks486	0:43cce7b453d0	1819	} while (pp == '?' \|\| pp == '*');
oks486	0:43cce7b453d0	1820	if (pattern_matching(pp, np, nm, nx)) return 1; /* Test new branch (recurs upto number of wildcard blocks in the pattern) */
oks486	0:43cce7b453d0	1821	nc = np; break; / Branch mismatched */
oks486	0:43cce7b453d0	1822	}
oks486	0:43cce7b453d0	1823	pc = get_achar(&pp); /* Get a pattern char */
oks486	0:43cce7b453d0	1824	nc = get_achar(&np); /* Get a name char */
oks486	0:43cce7b453d0	1825	if (pc != nc) break; /* Branch mismatched? */
oks486	0:43cce7b453d0	1826	if (!pc) return 1; /* Branch matched? (matched at end of both strings) */
oks486	0:43cce7b453d0	1827	}
oks486	0:43cce7b453d0	1828	get_achar(&nam); /* nam++ */
oks486	0:43cce7b453d0	1829	} while (inf && nc); /* Retry until end of name if infinite search is specified */
oks486	0:43cce7b453d0	1830
oks486	0:43cce7b453d0	1831	return 0;
oks486	0:43cce7b453d0	1832	}
oks486	0:43cce7b453d0	1833	#endif /* _USE_FIND && _FS_MINIMIZE <= 1 */
oks486	0:43cce7b453d0	1834
oks486	0:43cce7b453d0	1835
oks486	0:43cce7b453d0	1836
oks486	0:43cce7b453d0	1837
oks486	0:43cce7b453d0	1838	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1839	/* Pick a top segment and create the object name in directory form */
oks486	0:43cce7b453d0	1840	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	1841
oks486	0:43cce7b453d0	1842	static
oks486	0:43cce7b453d0	1843	FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */
oks486	0:43cce7b453d0	1844	DIR* dp, /* Pointer to the directory object */
oks486	0:43cce7b453d0	1845	const TCHAR** path /* Pointer to pointer to the segment in the path string */
oks486	0:43cce7b453d0	1846	)
oks486	0:43cce7b453d0	1847	{
oks486	0:43cce7b453d0	1848	#if _USE_LFN /* LFN configuration */
oks486	0:43cce7b453d0	1849	BYTE b, cf;
oks486	0:43cce7b453d0	1850	WCHAR w, *lfn;
oks486	0:43cce7b453d0	1851	UINT i, ni, si, di;
oks486	0:43cce7b453d0	1852	const TCHAR *p;
oks486	0:43cce7b453d0	1853
oks486	0:43cce7b453d0	1854	/* Create LFN in Unicode */
oks486	0:43cce7b453d0	1855	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
oks486	0:43cce7b453d0	1856	lfn = dp->lfn;
oks486	0:43cce7b453d0	1857	si = di = 0;
oks486	0:43cce7b453d0	1858	for (;;) {
oks486	0:43cce7b453d0	1859	w = p[si++]; /* Get a character */
oks486	0:43cce7b453d0	1860	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
oks486	0:43cce7b453d0	1861	if (di >= _MAX_LFN) /* Reject too long name */
oks486	0:43cce7b453d0	1862	return FR_INVALID_NAME;
oks486	0:43cce7b453d0	1863	#if !_LFN_UNICODE
oks486	0:43cce7b453d0	1864	w &= 0xFF;
oks486	0:43cce7b453d0	1865	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
oks486	0:43cce7b453d0	1866	b = (BYTE)p[si++]; /* Get 2nd byte */
oks486	0:43cce7b453d0	1867	w = (w << 8) + b; /* Create a DBC */
oks486	0:43cce7b453d0	1868	if (!IsDBCS2(b))
oks486	0:43cce7b453d0	1869	return FR_INVALID_NAME; /* Reject invalid sequence */
oks486	0:43cce7b453d0	1870	}
oks486	0:43cce7b453d0	1871	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
oks486	0:43cce7b453d0	1872	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
oks486	0:43cce7b453d0	1873	#endif
oks486	0:43cce7b453d0	1874	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal characters for LFN */
oks486	0:43cce7b453d0	1875	return FR_INVALID_NAME;
oks486	0:43cce7b453d0	1876	lfn[di++] = w; /* Store the Unicode character */
oks486	0:43cce7b453d0	1877	}
oks486	0:43cce7b453d0	1878	path = &p[si]; / Return pointer to the next segment */
oks486	0:43cce7b453d0	1879	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
oks486	0:43cce7b453d0	1880	#if _FS_RPATH
oks486	0:43cce7b453d0	1881	if ((di == 1 && lfn[di - 1] == '.') \|\|
oks486	0:43cce7b453d0	1882	(di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot entry? */
oks486	0:43cce7b453d0	1883	lfn[di] = 0;
oks486	0:43cce7b453d0	1884	for (i = 0; i < 11; i++) /* Create dot name for SFN entry */
oks486	0:43cce7b453d0	1885	dp->fn[i] = (i < di) ? '.' : ' ';
oks486	0:43cce7b453d0	1886	dp->fn[i] = cf \| NS_DOT; /* This is a dot entry */
oks486	0:43cce7b453d0	1887	return FR_OK;
oks486	0:43cce7b453d0	1888	}
oks486	0:43cce7b453d0	1889	#endif
oks486	0:43cce7b453d0	1890	while (di) { /* Snip off trailing spaces and dots if exist */
oks486	0:43cce7b453d0	1891	w = lfn[di - 1];
oks486	0:43cce7b453d0	1892	if (w != ' ' && w != '.') break;
oks486	0:43cce7b453d0	1893	di--;
oks486	0:43cce7b453d0	1894	}
oks486	0:43cce7b453d0	1895	if (!di) return FR_INVALID_NAME; /* Reject nul string */
oks486	0:43cce7b453d0	1896	lfn[di] = 0; /* LFN is created */
oks486	0:43cce7b453d0	1897
oks486	0:43cce7b453d0	1898	/* Create SFN in directory form */
oks486	0:43cce7b453d0	1899	mem_set(dp->fn, ' ', 11);
oks486	0:43cce7b453d0	1900	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
oks486	0:43cce7b453d0	1901	if (si) cf \|= NS_LOSS \| NS_LFN;
oks486	0:43cce7b453d0	1902	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
oks486	0:43cce7b453d0	1903
oks486	0:43cce7b453d0	1904	b = i = 0; ni = 8;
oks486	0:43cce7b453d0	1905	for (;;) {
oks486	0:43cce7b453d0	1906	w = lfn[si++]; /* Get an LFN character */
oks486	0:43cce7b453d0	1907	if (!w) break; /* Break on end of the LFN */
oks486	0:43cce7b453d0	1908	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
oks486	0:43cce7b453d0	1909	cf \|= NS_LOSS \| NS_LFN; continue;
oks486	0:43cce7b453d0	1910	}
oks486	0:43cce7b453d0	1911
oks486	0:43cce7b453d0	1912	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
oks486	0:43cce7b453d0	1913	if (ni == 11) { /* Long extension */
oks486	0:43cce7b453d0	1914	cf \|= NS_LOSS \| NS_LFN; break;
oks486	0:43cce7b453d0	1915	}
oks486	0:43cce7b453d0	1916	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
oks486	0:43cce7b453d0	1917	if (si > di) break; /* No extension */
oks486	0:43cce7b453d0	1918	si = di; i = 8; ni = 11; /* Enter extension section */
oks486	0:43cce7b453d0	1919	b <<= 2; continue;
oks486	0:43cce7b453d0	1920	}
oks486	0:43cce7b453d0	1921
oks486	0:43cce7b453d0	1922	if (w >= 0x80) { /* Non ASCII character */
oks486	0:43cce7b453d0	1923	#ifdef _EXCVT
oks486	0:43cce7b453d0	1924	w = ff_convert(w, 0); /* Unicode -> OEM code */
oks486	0:43cce7b453d0	1925	if (w) w = ExCvt[w - 0x80]; /* Convert extended character to upper (SBCS) */
oks486	0:43cce7b453d0	1926	#else
oks486	0:43cce7b453d0	1927	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
oks486	0:43cce7b453d0	1928	#endif
oks486	0:43cce7b453d0	1929	cf \|= NS_LFN; /* Force create LFN entry */
oks486	0:43cce7b453d0	1930	}
oks486	0:43cce7b453d0	1931
oks486	0:43cce7b453d0	1932	if (_DF1S && w >= 0x100) { /* Is this DBC? (always false at SBCS cfg) */
oks486	0:43cce7b453d0	1933	if (i >= ni - 1) {
oks486	0:43cce7b453d0	1934	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
oks486	0:43cce7b453d0	1935	}
oks486	0:43cce7b453d0	1936	dp->fn[i++] = (BYTE)(w >> 8);
oks486	0:43cce7b453d0	1937	} else { /* SBC */
oks486	0:43cce7b453d0	1938	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal characters for SFN */
oks486	0:43cce7b453d0	1939	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
oks486	0:43cce7b453d0	1940	} else {
oks486	0:43cce7b453d0	1941	if (IsUpper(w)) { /* ASCII large capital */
oks486	0:43cce7b453d0	1942	b \|= 2;
oks486	0:43cce7b453d0	1943	} else {
oks486	0:43cce7b453d0	1944	if (IsLower(w)) { /* ASCII small capital */
oks486	0:43cce7b453d0	1945	b \|= 1; w -= 0x20;
oks486	0:43cce7b453d0	1946	}
oks486	0:43cce7b453d0	1947	}
oks486	0:43cce7b453d0	1948	}
oks486	0:43cce7b453d0	1949	}
oks486	0:43cce7b453d0	1950	dp->fn[i++] = (BYTE)w;
oks486	0:43cce7b453d0	1951	}
oks486	0:43cce7b453d0	1952
oks486	0:43cce7b453d0	1953	if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */
oks486	0:43cce7b453d0	1954
oks486	0:43cce7b453d0	1955	if (ni == 8) b <<= 2;
oks486	0:43cce7b453d0	1956	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
oks486	0:43cce7b453d0	1957	cf \|= NS_LFN;
oks486	0:43cce7b453d0	1958	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */
oks486	0:43cce7b453d0	1959	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
oks486	0:43cce7b453d0	1960	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
oks486	0:43cce7b453d0	1961	}
oks486	0:43cce7b453d0	1962
oks486	0:43cce7b453d0	1963	dp->fn[NSFLAG] = cf; /* SFN is created */
oks486	0:43cce7b453d0	1964
oks486	0:43cce7b453d0	1965	return FR_OK;
oks486	0:43cce7b453d0	1966
oks486	0:43cce7b453d0	1967
oks486	0:43cce7b453d0	1968	#else /* Non-LFN configuration */
oks486	0:43cce7b453d0	1969	BYTE b, c, d, *sfn;
oks486	0:43cce7b453d0	1970	UINT ni, si, i;
oks486	0:43cce7b453d0	1971	const char *p;
oks486	0:43cce7b453d0	1972
oks486	0:43cce7b453d0	1973	/* Create file name in directory form */
oks486	0:43cce7b453d0	1974	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Skip duplicated separator */
oks486	0:43cce7b453d0	1975	sfn = dp->fn;
oks486	0:43cce7b453d0	1976	mem_set(sfn, ' ', 11);
oks486	0:43cce7b453d0	1977	si = i = b = 0; ni = 8;
oks486	0:43cce7b453d0	1978	#if _FS_RPATH
oks486	0:43cce7b453d0	1979	if (p[si] == '.') { /* Is this a dot entry? */
oks486	0:43cce7b453d0	1980	for (;;) {
oks486	0:43cce7b453d0	1981	c = (BYTE)p[si++];
oks486	0:43cce7b453d0	1982	if (c != '.' \|\| si >= 3) break;
oks486	0:43cce7b453d0	1983	sfn[i++] = c;
oks486	0:43cce7b453d0	1984	}
oks486	0:43cce7b453d0	1985	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
oks486	0:43cce7b453d0	1986	path = &p[si]; / Return pointer to the next segment */
oks486	0:43cce7b453d0	1987	sfn[NSFLAG] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
oks486	0:43cce7b453d0	1988	return FR_OK;
oks486	0:43cce7b453d0	1989	}
oks486	0:43cce7b453d0	1990	#endif
oks486	0:43cce7b453d0	1991	for (;;) {
oks486	0:43cce7b453d0	1992	c = (BYTE)p[si++];
oks486	0:43cce7b453d0	1993	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
oks486	0:43cce7b453d0	1994	if (c == '.' \|\| i >= ni) {
oks486	0:43cce7b453d0	1995	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
oks486	0:43cce7b453d0	1996	i = 8; ni = 11;
oks486	0:43cce7b453d0	1997	b <<= 2; continue;
oks486	0:43cce7b453d0	1998	}
oks486	0:43cce7b453d0	1999	if (c >= 0x80) { /* Extended character? */
oks486	0:43cce7b453d0	2000	b \|= 3; /* Eliminate NT flag */
oks486	0:43cce7b453d0	2001	#ifdef _EXCVT
oks486	0:43cce7b453d0	2002	c = ExCvt[c - 0x80]; /* To upper extended characters (SBCS cfg) */
oks486	0:43cce7b453d0	2003	#else
oks486	0:43cce7b453d0	2004	#if !_DF1S
oks486	0:43cce7b453d0	2005	return FR_INVALID_NAME; /* Reject extended characters (ASCII cfg) */
oks486	0:43cce7b453d0	2006	#endif
oks486	0:43cce7b453d0	2007	#endif
oks486	0:43cce7b453d0	2008	}
oks486	0:43cce7b453d0	2009	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false at SBCS cfg.) */
oks486	0:43cce7b453d0	2010	d = (BYTE)p[si++]; /* Get 2nd byte */
oks486	0:43cce7b453d0	2011	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
oks486	0:43cce7b453d0	2012	return FR_INVALID_NAME;
oks486	0:43cce7b453d0	2013	sfn[i++] = c;
oks486	0:43cce7b453d0	2014	sfn[i++] = d;
oks486	0:43cce7b453d0	2015	} else { /* SBC */
oks486	0:43cce7b453d0	2016	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
oks486	0:43cce7b453d0	2017	return FR_INVALID_NAME;
oks486	0:43cce7b453d0	2018	if (IsUpper(c)) { /* ASCII large capital? */
oks486	0:43cce7b453d0	2019	b \|= 2;
oks486	0:43cce7b453d0	2020	} else {
oks486	0:43cce7b453d0	2021	if (IsLower(c)) { /* ASCII small capital? */
oks486	0:43cce7b453d0	2022	b \|= 1; c -= 0x20;
oks486	0:43cce7b453d0	2023	}
oks486	0:43cce7b453d0	2024	}
oks486	0:43cce7b453d0	2025	sfn[i++] = c;
oks486	0:43cce7b453d0	2026	}
oks486	0:43cce7b453d0	2027	}
oks486	0:43cce7b453d0	2028	path = &p[si]; / Return pointer to the next segment */
oks486	0:43cce7b453d0	2029	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
oks486	0:43cce7b453d0	2030
oks486	0:43cce7b453d0	2031	if (!i) return FR_INVALID_NAME; /* Reject nul string */
oks486	0:43cce7b453d0	2032	if (sfn[0] == DDEM) sfn[0] = RDDEM; /* When first character collides with DDEM, replace it with RDDEM */
oks486	0:43cce7b453d0	2033
oks486	0:43cce7b453d0	2034	if (ni == 8) b <<= 2;
oks486	0:43cce7b453d0	2035	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
oks486	0:43cce7b453d0	2036	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
oks486	0:43cce7b453d0	2037
oks486	0:43cce7b453d0	2038	sfn[NSFLAG] = c; /* Store NT flag, File name is created */
oks486	0:43cce7b453d0	2039
oks486	0:43cce7b453d0	2040	return FR_OK;
oks486	0:43cce7b453d0	2041	#endif
oks486	0:43cce7b453d0	2042	}
oks486	0:43cce7b453d0	2043
oks486	0:43cce7b453d0	2044
oks486	0:43cce7b453d0	2045
oks486	0:43cce7b453d0	2046
oks486	0:43cce7b453d0	2047	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2048	/* Follow a file path */
oks486	0:43cce7b453d0	2049	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2050
oks486	0:43cce7b453d0	2051	static
oks486	0:43cce7b453d0	2052	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
oks486	0:43cce7b453d0	2053	DIR* dp, /* Directory object to return last directory and found object */
oks486	0:43cce7b453d0	2054	const TCHAR* path /* Full-path string to find a file or directory */
oks486	0:43cce7b453d0	2055	)
oks486	0:43cce7b453d0	2056	{
oks486	0:43cce7b453d0	2057	FRESULT res;
oks486	0:43cce7b453d0	2058	BYTE *dir, ns;
oks486	0:43cce7b453d0	2059
oks486	0:43cce7b453d0	2060
oks486	0:43cce7b453d0	2061	#if _FS_RPATH
oks486	0:43cce7b453d0	2062	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
oks486	0:43cce7b453d0	2063	path++; dp->sclust = 0; /* Strip it and start from the root directory */
oks486	0:43cce7b453d0	2064	} else { /* No heading separator */
oks486	0:43cce7b453d0	2065	dp->sclust = dp->fs->cdir; /* Start from the current directory */
oks486	0:43cce7b453d0	2066	}
oks486	0:43cce7b453d0	2067	#else
oks486	0:43cce7b453d0	2068	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
oks486	0:43cce7b453d0	2069	path++;
oks486	0:43cce7b453d0	2070	dp->sclust = 0; /* Always start from the root directory */
oks486	0:43cce7b453d0	2071	#endif
oks486	0:43cce7b453d0	2072
oks486	0:43cce7b453d0	2073	if ((UINT)path < ' ') { / Null path name is the origin directory itself */
oks486	0:43cce7b453d0	2074	res = dir_sdi(dp, 0);
oks486	0:43cce7b453d0	2075	dp->dir = 0;
oks486	0:43cce7b453d0	2076	} else { /* Follow path */
oks486	0:43cce7b453d0	2077	for (;;) {
oks486	0:43cce7b453d0	2078	res = create_name(dp, &path); /* Get a segment name of the path */
oks486	0:43cce7b453d0	2079	if (res != FR_OK) break;
oks486	0:43cce7b453d0	2080	res = dir_find(dp); /* Find an object with the sagment name */
oks486	0:43cce7b453d0	2081	ns = dp->fn[NSFLAG];
oks486	0:43cce7b453d0	2082	if (res != FR_OK) { /* Failed to find the object */
oks486	0:43cce7b453d0	2083	if (res == FR_NO_FILE) { /* Object is not found */
oks486	0:43cce7b453d0	2084	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, */
oks486	0:43cce7b453d0	2085	dp->sclust = 0; dp->dir = 0; /* it is the root directory and stay there */
oks486	0:43cce7b453d0	2086	if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */
oks486	0:43cce7b453d0	2087	res = FR_OK; /* Ended at the root directroy. Function completed. */
oks486	0:43cce7b453d0	2088	} else { /* Could not find the object */
oks486	0:43cce7b453d0	2089	if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */
oks486	0:43cce7b453d0	2090	}
oks486	0:43cce7b453d0	2091	}
oks486	0:43cce7b453d0	2092	break;
oks486	0:43cce7b453d0	2093	}
oks486	0:43cce7b453d0	2094	if (ns & NS_LAST) break; /* Last segment matched. Function completed. */
oks486	0:43cce7b453d0	2095	dir = dp->dir; /* Follow the sub-directory */
oks486	0:43cce7b453d0	2096	if (!(dir[DIR_Attr] & AM_DIR)) { /* It is not a sub-directory and cannot follow */
oks486	0:43cce7b453d0	2097	res = FR_NO_PATH; break;
oks486	0:43cce7b453d0	2098	}
oks486	0:43cce7b453d0	2099	dp->sclust = ld_clust(dp->fs, dir);
oks486	0:43cce7b453d0	2100	}
oks486	0:43cce7b453d0	2101	}
oks486	0:43cce7b453d0	2102
oks486	0:43cce7b453d0	2103	return res;
oks486	0:43cce7b453d0	2104	}
oks486	0:43cce7b453d0	2105
oks486	0:43cce7b453d0	2106
oks486	0:43cce7b453d0	2107
oks486	0:43cce7b453d0	2108
oks486	0:43cce7b453d0	2109	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2110	/* Get logical drive number from path name */
oks486	0:43cce7b453d0	2111	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2112
oks486	0:43cce7b453d0	2113	static
oks486	0:43cce7b453d0	2114	int get_ldnumber ( /* Returns logical drive number (-1:invalid drive) */
oks486	0:43cce7b453d0	2115	const TCHAR** path /* Pointer to pointer to the path name */
oks486	0:43cce7b453d0	2116	)
oks486	0:43cce7b453d0	2117	{
oks486	0:43cce7b453d0	2118	const TCHAR tp, tt;
oks486	0:43cce7b453d0	2119	UINT i;
oks486	0:43cce7b453d0	2120	int vol = -1;
oks486	0:43cce7b453d0	2121	#if _STR_VOLUME_ID /* Find string drive id */
oks486	0:43cce7b453d0	2122	static const char* const str[] = {_VOLUME_STRS};
oks486	0:43cce7b453d0	2123	const char *sp;
oks486	0:43cce7b453d0	2124	char c;
oks486	0:43cce7b453d0	2125	TCHAR tc;
oks486	0:43cce7b453d0	2126	#endif
oks486	0:43cce7b453d0	2127
oks486	0:43cce7b453d0	2128
oks486	0:43cce7b453d0	2129	if (path) { / If the pointer is not a null */
oks486	0:43cce7b453d0	2130	for (tt = path; (UINT)tt >= (_USE_LFN ? ' ' : '!') && tt != ':'; tt++) ; / Find ':' in the path */
oks486	0:43cce7b453d0	2131	if (tt == ':') { / If a ':' is exist in the path name */
oks486	0:43cce7b453d0	2132	tp = *path;
oks486	0:43cce7b453d0	2133	i = *tp++ - '0';
oks486	0:43cce7b453d0	2134	if (i < 10 && tp == tt) { /* Is there a numeric drive id? */
oks486	0:43cce7b453d0	2135	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
oks486	0:43cce7b453d0	2136	vol = (int)i;
oks486	0:43cce7b453d0	2137	*path = ++tt;
oks486	0:43cce7b453d0	2138	}
oks486	0:43cce7b453d0	2139	}
oks486	0:43cce7b453d0	2140	#if _STR_VOLUME_ID
oks486	0:43cce7b453d0	2141	else { /* No numeric drive number, find string drive id */
oks486	0:43cce7b453d0	2142	i = 0; tt++;
oks486	0:43cce7b453d0	2143	do {
oks486	0:43cce7b453d0	2144	sp = str[i]; tp = *path;
oks486	0:43cce7b453d0	2145	do { /* Compare a string drive id with path name */
oks486	0:43cce7b453d0	2146	c = sp++; tc = tp++;
oks486	0:43cce7b453d0	2147	if (IsLower(tc)) tc -= 0x20;
oks486	0:43cce7b453d0	2148	} while (c && (TCHAR)c == tc);
oks486	0:43cce7b453d0	2149	} while ((c \|\| tp != tt) && ++i < _VOLUMES); /* Repeat for each id until pattern match */
oks486	0:43cce7b453d0	2150	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
oks486	0:43cce7b453d0	2151	vol = (int)i;
oks486	0:43cce7b453d0	2152	*path = tt;
oks486	0:43cce7b453d0	2153	}
oks486	0:43cce7b453d0	2154	}
oks486	0:43cce7b453d0	2155	#endif
oks486	0:43cce7b453d0	2156	return vol;
oks486	0:43cce7b453d0	2157	}
oks486	0:43cce7b453d0	2158	#if _FS_RPATH && _VOLUMES >= 2
oks486	0:43cce7b453d0	2159	vol = CurrVol; /* Current drive */
oks486	0:43cce7b453d0	2160	#else
oks486	0:43cce7b453d0	2161	vol = 0; /* Drive 0 */
oks486	0:43cce7b453d0	2162	#endif
oks486	0:43cce7b453d0	2163	}
oks486	0:43cce7b453d0	2164	return vol;
oks486	0:43cce7b453d0	2165	}
oks486	0:43cce7b453d0	2166
oks486	0:43cce7b453d0	2167
oks486	0:43cce7b453d0	2168
oks486	0:43cce7b453d0	2169
oks486	0:43cce7b453d0	2170	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2171	/* Load a sector and check if it is an FAT boot sector */
oks486	0:43cce7b453d0	2172	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2173
oks486	0:43cce7b453d0	2174	static
oks486	0:43cce7b453d0	2175	BYTE check_fs ( /* 0:Valid FAT-BS, 1:Valid BS but not FAT, 2:Not a BS, 3:Disk error */
oks486	0:43cce7b453d0	2176	FATFS* fs, /* File system object */
oks486	0:43cce7b453d0	2177	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
oks486	0:43cce7b453d0	2178	)
oks486	0:43cce7b453d0	2179	{
oks486	0:43cce7b453d0	2180	fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */
oks486	0:43cce7b453d0	2181	if (move_window(fs, sect) != FR_OK) /* Load boot record */
oks486	0:43cce7b453d0	2182	return 3;
oks486	0:43cce7b453d0	2183
oks486	0:43cce7b453d0	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) */
oks486	0:43cce7b453d0	2185	return 2;
oks486	0:43cce7b453d0	2186
oks486	0:43cce7b453d0	2187	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
oks486	0:43cce7b453d0	2188	return 0;
oks486	0:43cce7b453d0	2189	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
oks486	0:43cce7b453d0	2190	return 0;
oks486	0:43cce7b453d0	2191
oks486	0:43cce7b453d0	2192	return 1;
oks486	0:43cce7b453d0	2193	}
oks486	0:43cce7b453d0	2194
oks486	0:43cce7b453d0	2195
oks486	0:43cce7b453d0	2196
oks486	0:43cce7b453d0	2197
oks486	0:43cce7b453d0	2198	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2199	/* Find logical drive and check if the volume is mounted */
oks486	0:43cce7b453d0	2200	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2201
oks486	0:43cce7b453d0	2202	static
oks486	0:43cce7b453d0	2203	FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */
oks486	0:43cce7b453d0	2204	FATFS** rfs, /* Pointer to pointer to the found file system object */
oks486	0:43cce7b453d0	2205	const TCHAR** path, /* Pointer to pointer to the path name (drive number) */
oks486	0:43cce7b453d0	2206	BYTE wmode /* !=0: Check write protection for write access */
oks486	0:43cce7b453d0	2207	)
oks486	0:43cce7b453d0	2208	{
oks486	0:43cce7b453d0	2209	BYTE fmt, *pt;
oks486	0:43cce7b453d0	2210	int vol;
oks486	0:43cce7b453d0	2211	DSTATUS stat;
oks486	0:43cce7b453d0	2212	DWORD bsect, fasize, tsect, sysect, nclst, szbfat, br[4];
oks486	0:43cce7b453d0	2213	WORD nrsv;
oks486	0:43cce7b453d0	2214	FATFS *fs;
oks486	0:43cce7b453d0	2215	UINT i;
oks486	0:43cce7b453d0	2216
oks486	0:43cce7b453d0	2217
oks486	0:43cce7b453d0	2218	/* Get logical drive number from the path name */
oks486	0:43cce7b453d0	2219	*rfs = 0;
oks486	0:43cce7b453d0	2220	vol = get_ldnumber(path);
oks486	0:43cce7b453d0	2221	if (vol < 0) return FR_INVALID_DRIVE;
oks486	0:43cce7b453d0	2222
oks486	0:43cce7b453d0	2223	/* Check if the file system object is valid or not */
oks486	0:43cce7b453d0	2224	fs = FatFs[vol]; /* Get pointer to the file system object */
oks486	0:43cce7b453d0	2225	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
oks486	0:43cce7b453d0	2226
oks486	0:43cce7b453d0	2227	ENTER_FF(fs); /* Lock the volume */
oks486	0:43cce7b453d0	2228	rfs = fs; / Return pointer to the file system object */
oks486	0:43cce7b453d0	2229
oks486	0:43cce7b453d0	2230	if (fs->fs_type) { /* If the volume has been mounted */
oks486	0:43cce7b453d0	2231	stat = disk_status(fs->drv);
oks486	0:43cce7b453d0	2232	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */
oks486	0:43cce7b453d0	2233	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
oks486	0:43cce7b453d0	2234	return FR_WRITE_PROTECTED;
oks486	0:43cce7b453d0	2235	return FR_OK; /* The file system object is valid */
oks486	0:43cce7b453d0	2236	}
oks486	0:43cce7b453d0	2237	}
oks486	0:43cce7b453d0	2238
oks486	0:43cce7b453d0	2239	/* The file system object is not valid. */
oks486	0:43cce7b453d0	2240	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
oks486	0:43cce7b453d0	2241
oks486	0:43cce7b453d0	2242	fs->fs_type = 0; /* Clear the file system object */
oks486	0:43cce7b453d0	2243	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
oks486	0:43cce7b453d0	2244	stat = disk_initialize(fs->drv); /* Initialize the physical drive */
oks486	0:43cce7b453d0	2245	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
oks486	0:43cce7b453d0	2246	return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
oks486	0:43cce7b453d0	2247	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
oks486	0:43cce7b453d0	2248	return FR_WRITE_PROTECTED;
oks486	0:43cce7b453d0	2249	#if _MAX_SS != _MIN_SS /* Get sector size (multiple sector size cfg only) */
oks486	0:43cce7b453d0	2250	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
oks486	0:43cce7b453d0	2251	\|\| SS(fs) < _MIN_SS \|\| SS(fs) > _MAX_SS) return FR_DISK_ERR;
oks486	0:43cce7b453d0	2252	#endif
oks486	0:43cce7b453d0	2253	/* Find an FAT partition on the drive. Supports only generic partitioning, FDISK and SFD. */
oks486	0:43cce7b453d0	2254	bsect = 0;
oks486	0:43cce7b453d0	2255	fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT boot sector as SFD */
oks486	0:43cce7b453d0	2256	if (fmt == 1 \|\| (!fmt && (LD2PT(vol)))) { /* Not an FAT boot sector or forced partition number */
oks486	0:43cce7b453d0	2257	for (i = 0; i < 4; i++) { /* Get partition offset */
oks486	0:43cce7b453d0	2258	pt = fs->win + MBR_Table + i * SZ_PTE;
oks486	0:43cce7b453d0	2259	br[i] = pt[4] ? LD_DWORD(&pt[8]) : 0;
oks486	0:43cce7b453d0	2260	}
oks486	0:43cce7b453d0	2261	i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */
oks486	0:43cce7b453d0	2262	if (i) i--;
oks486	0:43cce7b453d0	2263	do { /* Find an FAT volume */
oks486	0:43cce7b453d0	2264	bsect = br[i];
oks486	0:43cce7b453d0	2265	fmt = bsect ? check_fs(fs, bsect) : 2; /* Check the partition */
oks486	0:43cce7b453d0	2266	} while (!LD2PT(vol) && fmt && ++i < 4);
oks486	0:43cce7b453d0	2267	}
oks486	0:43cce7b453d0	2268	if (fmt == 3) return FR_DISK_ERR; /* An error occured in the disk I/O layer */
oks486	0:43cce7b453d0	2269	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
oks486	0:43cce7b453d0	2270
oks486	0:43cce7b453d0	2271	/* An FAT volume is found. Following code initializes the file system object */
oks486	0:43cce7b453d0	2272
oks486	0:43cce7b453d0	2273	if (LD_WORD(fs->win + BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
oks486	0:43cce7b453d0	2274	return FR_NO_FILESYSTEM;
oks486	0:43cce7b453d0	2275
oks486	0:43cce7b453d0	2276	fasize = LD_WORD(fs->win + BPB_FATSz16); /* Number of sectors per FAT */
oks486	0:43cce7b453d0	2277	if (!fasize) fasize = LD_DWORD(fs->win + BPB_FATSz32);
oks486	0:43cce7b453d0	2278	fs->fsize = fasize;
oks486	0:43cce7b453d0	2279
oks486	0:43cce7b453d0	2280	fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */
oks486	0:43cce7b453d0	2281	if (fs->n_fats != 1 && fs->n_fats != 2) /* (Must be 1 or 2) */
oks486	0:43cce7b453d0	2282	return FR_NO_FILESYSTEM;
oks486	0:43cce7b453d0	2283	fasize = fs->n_fats; / Number of sectors for FAT area */
oks486	0:43cce7b453d0	2284
oks486	0:43cce7b453d0	2285	fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
oks486	0:43cce7b453d0	2286	if (!fs->csize \|\| (fs->csize & (fs->csize - 1))) /* (Must be power of 2) */
oks486	0:43cce7b453d0	2287	return FR_NO_FILESYSTEM;
oks486	0:43cce7b453d0	2288
oks486	0:43cce7b453d0	2289	fs->n_rootdir = LD_WORD(fs->win + BPB_RootEntCnt); /* Number of root directory entries */
oks486	0:43cce7b453d0	2290	if (fs->n_rootdir % (SS(fs) / SZ_DIRE)) /* (Must be sector aligned) */
oks486	0:43cce7b453d0	2291	return FR_NO_FILESYSTEM;
oks486	0:43cce7b453d0	2292
oks486	0:43cce7b453d0	2293	tsect = LD_WORD(fs->win + BPB_TotSec16); /* Number of sectors on the volume */
oks486	0:43cce7b453d0	2294	if (!tsect) tsect = LD_DWORD(fs->win + BPB_TotSec32);
oks486	0:43cce7b453d0	2295
oks486	0:43cce7b453d0	2296	nrsv = LD_WORD(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */
oks486	0:43cce7b453d0	2297	if (!nrsv) return FR_NO_FILESYSTEM; /* (Must not be 0) */
oks486	0:43cce7b453d0	2298
oks486	0:43cce7b453d0	2299	/* Determine the FAT sub type */
oks486	0:43cce7b453d0	2300	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIRE); /* RSV + FAT + DIR */
oks486	0:43cce7b453d0	2301	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
oks486	0:43cce7b453d0	2302	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
oks486	0:43cce7b453d0	2303	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
oks486	0:43cce7b453d0	2304	fmt = FS_FAT12;
oks486	0:43cce7b453d0	2305	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
oks486	0:43cce7b453d0	2306	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
oks486	0:43cce7b453d0	2307
oks486	0:43cce7b453d0	2308	/* Boundaries and Limits */
oks486	0:43cce7b453d0	2309	fs->n_fatent = nclst + 2; /* Number of FAT entries */
oks486	0:43cce7b453d0	2310	fs->volbase = bsect; /* Volume start sector */
oks486	0:43cce7b453d0	2311	fs->fatbase = bsect + nrsv; /* FAT start sector */
oks486	0:43cce7b453d0	2312	fs->database = bsect + sysect; /* Data start sector */
oks486	0:43cce7b453d0	2313	if (fmt == FS_FAT32) {
oks486	0:43cce7b453d0	2314	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
oks486	0:43cce7b453d0	2315	fs->dirbase = LD_DWORD(fs->win + BPB_RootClus); /* Root directory start cluster */
oks486	0:43cce7b453d0	2316	szbfat = fs->n_fatent * 4; /* (Needed FAT size) */
oks486	0:43cce7b453d0	2317	} else {
oks486	0:43cce7b453d0	2318	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
oks486	0:43cce7b453d0	2319	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
oks486	0:43cce7b453d0	2320	szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */
oks486	0:43cce7b453d0	2321	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
oks486	0:43cce7b453d0	2322	}
oks486	0:43cce7b453d0	2323	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than the size needed) */
oks486	0:43cce7b453d0	2324	return FR_NO_FILESYSTEM;
oks486	0:43cce7b453d0	2325
oks486	0:43cce7b453d0	2326	#if !_FS_READONLY
oks486	0:43cce7b453d0	2327	/* Initialize cluster allocation information */
oks486	0:43cce7b453d0	2328	fs->last_clust = fs->free_clust = 0xFFFFFFFF;
oks486	0:43cce7b453d0	2329
oks486	0:43cce7b453d0	2330	/* Get fsinfo if available */
oks486	0:43cce7b453d0	2331	fs->fsi_flag = 0x80;
oks486	0:43cce7b453d0	2332	#if (_FS_NOFSINFO & 3) != 3
oks486	0:43cce7b453d0	2333	if (fmt == FS_FAT32 /* Enable FSINFO only if FAT32 and BPB_FSInfo == 1 */
oks486	0:43cce7b453d0	2334	&& LD_WORD(fs->win + BPB_FSInfo) == 1
oks486	0:43cce7b453d0	2335	&& move_window(fs, bsect + 1) == FR_OK)
oks486	0:43cce7b453d0	2336	{
oks486	0:43cce7b453d0	2337	fs->fsi_flag = 0;
oks486	0:43cce7b453d0	2338	if (LD_WORD(fs->win + BS_55AA) == 0xAA55 /* Load FSINFO data if available */
oks486	0:43cce7b453d0	2339	&& LD_DWORD(fs->win + FSI_LeadSig) == 0x41615252
oks486	0:43cce7b453d0	2340	&& LD_DWORD(fs->win + FSI_StrucSig) == 0x61417272)
oks486	0:43cce7b453d0	2341	{
oks486	0:43cce7b453d0	2342	#if (_FS_NOFSINFO & 1) == 0
oks486	0:43cce7b453d0	2343	fs->free_clust = LD_DWORD(fs->win + FSI_Free_Count);
oks486	0:43cce7b453d0	2344	#endif
oks486	0:43cce7b453d0	2345	#if (_FS_NOFSINFO & 2) == 0
oks486	0:43cce7b453d0	2346	fs->last_clust = LD_DWORD(fs->win + FSI_Nxt_Free);
oks486	0:43cce7b453d0	2347	#endif
oks486	0:43cce7b453d0	2348	}
oks486	0:43cce7b453d0	2349	}
oks486	0:43cce7b453d0	2350	#endif
oks486	0:43cce7b453d0	2351	#endif
oks486	0:43cce7b453d0	2352	fs->fs_type = fmt; /* FAT sub-type */
oks486	0:43cce7b453d0	2353	fs->id = ++Fsid; /* File system mount ID */
oks486	0:43cce7b453d0	2354	#if _FS_RPATH
oks486	0:43cce7b453d0	2355	fs->cdir = 0; /* Set current directory to root */
oks486	0:43cce7b453d0	2356	#endif
oks486	0:43cce7b453d0	2357	#if _FS_LOCK /* Clear file lock semaphores */
oks486	0:43cce7b453d0	2358	clear_lock(fs);
oks486	0:43cce7b453d0	2359	#endif
oks486	0:43cce7b453d0	2360
oks486	0:43cce7b453d0	2361	return FR_OK;
oks486	0:43cce7b453d0	2362	}
oks486	0:43cce7b453d0	2363
oks486	0:43cce7b453d0	2364
oks486	0:43cce7b453d0	2365
oks486	0:43cce7b453d0	2366
oks486	0:43cce7b453d0	2367	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2368	/* Check if the file/directory object is valid or not */
oks486	0:43cce7b453d0	2369	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2370
oks486	0:43cce7b453d0	2371	static
oks486	0:43cce7b453d0	2372	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
oks486	0:43cce7b453d0	2373	void* obj /* Pointer to the object FIL/DIR to check validity */
oks486	0:43cce7b453d0	2374	)
oks486	0:43cce7b453d0	2375	{
oks486	0:43cce7b453d0	2376	FIL fil = (FIL)obj; /* Assuming offset of .fs and .id in the FIL/DIR structure is identical */
oks486	0:43cce7b453d0	2377
oks486	0:43cce7b453d0	2378
oks486	0:43cce7b453d0	2379	if (!fil \|\| !fil->fs \|\| !fil->fs->fs_type \|\| fil->fs->id != fil->id \|\| (disk_status(fil->fs->drv) & STA_NOINIT))
oks486	0:43cce7b453d0	2380	return FR_INVALID_OBJECT;
oks486	0:43cce7b453d0	2381
oks486	0:43cce7b453d0	2382	ENTER_FF(fil->fs); /* Lock file system */
oks486	0:43cce7b453d0	2383
oks486	0:43cce7b453d0	2384	return FR_OK;
oks486	0:43cce7b453d0	2385	}
oks486	0:43cce7b453d0	2386
oks486	0:43cce7b453d0	2387
oks486	0:43cce7b453d0	2388
oks486	0:43cce7b453d0	2389
oks486	0:43cce7b453d0	2390	/*--------------------------------------------------------------------------
oks486	0:43cce7b453d0	2391
oks486	0:43cce7b453d0	2392	Public Functions
oks486	0:43cce7b453d0	2393
oks486	0:43cce7b453d0	2394	---------------------------------------------------------------------------*/
oks486	0:43cce7b453d0	2395
oks486	0:43cce7b453d0	2396
oks486	0:43cce7b453d0	2397
oks486	0:43cce7b453d0	2398	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2399	/* Mount/Unmount a Logical Drive */
oks486	0:43cce7b453d0	2400	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2401
oks486	0:43cce7b453d0	2402	FRESULT f_mount (
oks486	0:43cce7b453d0	2403	FATFS* fs, /* Pointer to the file system object (NULL:unmount)*/
oks486	0:43cce7b453d0	2404	const TCHAR* path, /* Logical drive number to be mounted/unmounted */
oks486	0:43cce7b453d0	2405	BYTE opt /* 0:Do not mount (delayed mount), 1:Mount immediately */
oks486	0:43cce7b453d0	2406	)
oks486	0:43cce7b453d0	2407	{
oks486	0:43cce7b453d0	2408	FATFS *cfs;
oks486	0:43cce7b453d0	2409	int vol;
oks486	0:43cce7b453d0	2410	FRESULT res;
oks486	0:43cce7b453d0	2411	const TCHAR *rp = path;
oks486	0:43cce7b453d0	2412
oks486	0:43cce7b453d0	2413
oks486	0:43cce7b453d0	2414	vol = get_ldnumber(&rp);
oks486	0:43cce7b453d0	2415	if (vol < 0) return FR_INVALID_DRIVE;
oks486	0:43cce7b453d0	2416	cfs = FatFs[vol]; /* Pointer to fs object */
oks486	0:43cce7b453d0	2417
oks486	0:43cce7b453d0	2418	if (cfs) {
oks486	0:43cce7b453d0	2419	#if _FS_LOCK
oks486	0:43cce7b453d0	2420	clear_lock(cfs);
oks486	0:43cce7b453d0	2421	#endif
oks486	0:43cce7b453d0	2422	#if _FS_REENTRANT /* Discard sync object of the current volume */
oks486	0:43cce7b453d0	2423	if (!ff_del_syncobj(cfs->sobj)) return FR_INT_ERR;
oks486	0:43cce7b453d0	2424	#endif
oks486	0:43cce7b453d0	2425	cfs->fs_type = 0; /* Clear old fs object */
oks486	0:43cce7b453d0	2426	}
oks486	0:43cce7b453d0	2427
oks486	0:43cce7b453d0	2428	if (fs) {
oks486	0:43cce7b453d0	2429	fs->fs_type = 0; /* Clear new fs object */
oks486	0:43cce7b453d0	2430	#if _FS_REENTRANT /* Create sync object for the new volume */
oks486	0:43cce7b453d0	2431	if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR;
oks486	0:43cce7b453d0	2432	#endif
oks486	0:43cce7b453d0	2433	}
oks486	0:43cce7b453d0	2434	FatFs[vol] = fs; /* Register new fs object */
oks486	0:43cce7b453d0	2435
oks486	0:43cce7b453d0	2436	if (!fs \|\| opt != 1) return FR_OK; /* Do not mount now, it will be mounted later */
oks486	0:43cce7b453d0	2437
oks486	0:43cce7b453d0	2438	res = find_volume(&fs, &path, 0); /* Force mounted the volume */
oks486	0:43cce7b453d0	2439	LEAVE_FF(fs, res);
oks486	0:43cce7b453d0	2440	}
oks486	0:43cce7b453d0	2441
oks486	0:43cce7b453d0	2442
oks486	0:43cce7b453d0	2443
oks486	0:43cce7b453d0	2444
oks486	0:43cce7b453d0	2445	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2446	/* Open or Create a File */
oks486	0:43cce7b453d0	2447	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2448
oks486	0:43cce7b453d0	2449	FRESULT f_open (
oks486	0:43cce7b453d0	2450	FIL* fp, /* Pointer to the blank file object */
oks486	0:43cce7b453d0	2451	const TCHAR* path, /* Pointer to the file name */
oks486	0:43cce7b453d0	2452	BYTE mode /* Access mode and file open mode flags */
oks486	0:43cce7b453d0	2453	)
oks486	0:43cce7b453d0	2454	{
oks486	0:43cce7b453d0	2455	FRESULT res;
oks486	0:43cce7b453d0	2456	DIR dj;
oks486	0:43cce7b453d0	2457	BYTE *dir;
oks486	0:43cce7b453d0	2458	DEFINE_NAMEBUF;
oks486	0:43cce7b453d0	2459	#if !_FS_READONLY
oks486	0:43cce7b453d0	2460	DWORD dw, cl;
oks486	0:43cce7b453d0	2461	#endif
oks486	0:43cce7b453d0	2462
oks486	0:43cce7b453d0	2463
oks486	0:43cce7b453d0	2464	if (!fp) return FR_INVALID_OBJECT;
oks486	0:43cce7b453d0	2465	fp->fs = 0; /* Clear file object */
oks486	0:43cce7b453d0	2466
oks486	0:43cce7b453d0	2467	/* Get logical drive number */
oks486	0:43cce7b453d0	2468	#if !_FS_READONLY
oks486	0:43cce7b453d0	2469	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
oks486	0:43cce7b453d0	2470	res = find_volume(&dj.fs, &path, (BYTE)(mode & ~FA_READ));
oks486	0:43cce7b453d0	2471	#else
oks486	0:43cce7b453d0	2472	mode &= FA_READ;
oks486	0:43cce7b453d0	2473	res = find_volume(&dj.fs, &path, 0);
oks486	0:43cce7b453d0	2474	#endif
oks486	0:43cce7b453d0	2475	if (res == FR_OK) {
oks486	0:43cce7b453d0	2476	INIT_BUF(dj);
oks486	0:43cce7b453d0	2477	res = follow_path(&dj, path); /* Follow the file path */
oks486	0:43cce7b453d0	2478	dir = dj.dir;
oks486	0:43cce7b453d0	2479	#if !_FS_READONLY /* R/W configuration */
oks486	0:43cce7b453d0	2480	if (res == FR_OK) {
oks486	0:43cce7b453d0	2481	if (!dir) /* Default directory itself */
oks486	0:43cce7b453d0	2482	res = FR_INVALID_NAME;
oks486	0:43cce7b453d0	2483	#if _FS_LOCK
oks486	0:43cce7b453d0	2484	else
oks486	0:43cce7b453d0	2485	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
oks486	0:43cce7b453d0	2486	#endif
oks486	0:43cce7b453d0	2487	}
oks486	0:43cce7b453d0	2488	/* Create or Open a file */
oks486	0:43cce7b453d0	2489	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
oks486	0:43cce7b453d0	2490	if (res != FR_OK) { /* No file, create new */
oks486	0:43cce7b453d0	2491	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
oks486	0:43cce7b453d0	2492	#if _FS_LOCK
oks486	0:43cce7b453d0	2493	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
oks486	0:43cce7b453d0	2494	#else
oks486	0:43cce7b453d0	2495	res = dir_register(&dj);
oks486	0:43cce7b453d0	2496	#endif
oks486	0:43cce7b453d0	2497	mode \|= FA_CREATE_ALWAYS; /* File is created */
oks486	0:43cce7b453d0	2498	dir = dj.dir; /* New entry */
oks486	0:43cce7b453d0	2499	}
oks486	0:43cce7b453d0	2500	else { /* Any object is already existing */
oks486	0:43cce7b453d0	2501	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */
oks486	0:43cce7b453d0	2502	res = FR_DENIED;
oks486	0:43cce7b453d0	2503	} else {
oks486	0:43cce7b453d0	2504	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
oks486	0:43cce7b453d0	2505	res = FR_EXIST;
oks486	0:43cce7b453d0	2506	}
oks486	0:43cce7b453d0	2507	}
oks486	0:43cce7b453d0	2508	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
oks486	0:43cce7b453d0	2509	dw = GET_FATTIME();
oks486	0:43cce7b453d0	2510	ST_DWORD(dir + DIR_CrtTime, dw);/* Set created time */
oks486	0:43cce7b453d0	2511	ST_DWORD(dir + DIR_WrtTime, dw);/* Set modified time */
oks486	0:43cce7b453d0	2512	dir[DIR_Attr] = 0; /* Reset attribute */
oks486	0:43cce7b453d0	2513	ST_DWORD(dir + DIR_FileSize, 0);/* Reset file size */
oks486	0:43cce7b453d0	2514	cl = ld_clust(dj.fs, dir); /* Get cluster chain */
oks486	0:43cce7b453d0	2515	st_clust(dir, 0); /* Reset cluster */
oks486	0:43cce7b453d0	2516	dj.fs->wflag = 1;
oks486	0:43cce7b453d0	2517	if (cl) { /* Remove the cluster chain if exist */
oks486	0:43cce7b453d0	2518	dw = dj.fs->winsect;
oks486	0:43cce7b453d0	2519	res = remove_chain(dj.fs, cl);
oks486	0:43cce7b453d0	2520	if (res == FR_OK) {
oks486	0:43cce7b453d0	2521	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
oks486	0:43cce7b453d0	2522	res = move_window(dj.fs, dw);
oks486	0:43cce7b453d0	2523	}
oks486	0:43cce7b453d0	2524	}
oks486	0:43cce7b453d0	2525	}
oks486	0:43cce7b453d0	2526	}
oks486	0:43cce7b453d0	2527	else { /* Open an existing file */
oks486	0:43cce7b453d0	2528	if (res == FR_OK) { /* Following succeeded */
oks486	0:43cce7b453d0	2529	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
oks486	0:43cce7b453d0	2530	res = FR_NO_FILE;
oks486	0:43cce7b453d0	2531	} else {
oks486	0:43cce7b453d0	2532	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
oks486	0:43cce7b453d0	2533	res = FR_DENIED;
oks486	0:43cce7b453d0	2534	}
oks486	0:43cce7b453d0	2535	}
oks486	0:43cce7b453d0	2536	}
oks486	0:43cce7b453d0	2537	if (res == FR_OK) {
oks486	0:43cce7b453d0	2538	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
oks486	0:43cce7b453d0	2539	mode \|= FA__WRITTEN;
oks486	0:43cce7b453d0	2540	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
oks486	0:43cce7b453d0	2541	fp->dir_ptr = dir;
oks486	0:43cce7b453d0	2542	#if _FS_LOCK
oks486	0:43cce7b453d0	2543	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
oks486	0:43cce7b453d0	2544	if (!fp->lockid) res = FR_INT_ERR;
oks486	0:43cce7b453d0	2545	#endif
oks486	0:43cce7b453d0	2546	}
oks486	0:43cce7b453d0	2547
oks486	0:43cce7b453d0	2548	#else /* R/O configuration */
oks486	0:43cce7b453d0	2549	if (res == FR_OK) { /* Follow succeeded */
oks486	0:43cce7b453d0	2550	dir = dj.dir;
oks486	0:43cce7b453d0	2551	if (!dir) { /* Current directory itself */
oks486	0:43cce7b453d0	2552	res = FR_INVALID_NAME;
oks486	0:43cce7b453d0	2553	} else {
oks486	0:43cce7b453d0	2554	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
oks486	0:43cce7b453d0	2555	res = FR_NO_FILE;
oks486	0:43cce7b453d0	2556	}
oks486	0:43cce7b453d0	2557	}
oks486	0:43cce7b453d0	2558	#endif
oks486	0:43cce7b453d0	2559	FREE_BUF();
oks486	0:43cce7b453d0	2560
oks486	0:43cce7b453d0	2561	if (res == FR_OK) {
oks486	0:43cce7b453d0	2562	fp->flag = mode; /* File access mode */
oks486	0:43cce7b453d0	2563	fp->err = 0; /* Clear error flag */
oks486	0:43cce7b453d0	2564	fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
oks486	0:43cce7b453d0	2565	fp->fsize = LD_DWORD(dir + DIR_FileSize); /* File size */
oks486	0:43cce7b453d0	2566	fp->fptr = 0; /* File pointer */
oks486	0:43cce7b453d0	2567	fp->dsect = 0;
oks486	0:43cce7b453d0	2568	#if _USE_FASTSEEK
oks486	0:43cce7b453d0	2569	fp->cltbl = 0; /* Normal seek mode */
oks486	0:43cce7b453d0	2570	#endif
oks486	0:43cce7b453d0	2571	fp->fs = dj.fs; /* Validate file object */
oks486	0:43cce7b453d0	2572	fp->id = fp->fs->id;
oks486	0:43cce7b453d0	2573	}
oks486	0:43cce7b453d0	2574	}
oks486	0:43cce7b453d0	2575
oks486	0:43cce7b453d0	2576	LEAVE_FF(dj.fs, res);
oks486	0:43cce7b453d0	2577	}
oks486	0:43cce7b453d0	2578
oks486	0:43cce7b453d0	2579
oks486	0:43cce7b453d0	2580
oks486	0:43cce7b453d0	2581
oks486	0:43cce7b453d0	2582	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2583	/* Read File */
oks486	0:43cce7b453d0	2584	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2585
oks486	0:43cce7b453d0	2586	FRESULT f_read (
oks486	0:43cce7b453d0	2587	FIL* fp, /* Pointer to the file object */
oks486	0:43cce7b453d0	2588	void* buff, /* Pointer to data buffer */
oks486	0:43cce7b453d0	2589	UINT btr, /* Number of bytes to read */
oks486	0:43cce7b453d0	2590	UINT* br /* Pointer to number of bytes read */
oks486	0:43cce7b453d0	2591	)
oks486	0:43cce7b453d0	2592	{
oks486	0:43cce7b453d0	2593	FRESULT res;
oks486	0:43cce7b453d0	2594	DWORD clst, sect, remain;
oks486	0:43cce7b453d0	2595	UINT rcnt, cc;
oks486	0:43cce7b453d0	2596	BYTE csect, rbuff = (BYTE)buff;
oks486	0:43cce7b453d0	2597
oks486	0:43cce7b453d0	2598
oks486	0:43cce7b453d0	2599	br = 0; / Clear read byte counter */
oks486	0:43cce7b453d0	2600
oks486	0:43cce7b453d0	2601	res = validate(fp); /* Check validity */
oks486	0:43cce7b453d0	2602	if (res != FR_OK) LEAVE_FF(fp->fs, res);
oks486	0:43cce7b453d0	2603	if (fp->err) /* Check error */
oks486	0:43cce7b453d0	2604	LEAVE_FF(fp->fs, (FRESULT)fp->err);
oks486	0:43cce7b453d0	2605	if (!(fp->flag & FA_READ)) /* Check access mode */
oks486	0:43cce7b453d0	2606	LEAVE_FF(fp->fs, FR_DENIED);
oks486	0:43cce7b453d0	2607	remain = fp->fsize - fp->fptr;
oks486	0:43cce7b453d0	2608	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
oks486	0:43cce7b453d0	2609
oks486	0:43cce7b453d0	2610	for ( ; btr; /* Repeat until all data read */
oks486	0:43cce7b453d0	2611	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
oks486	0:43cce7b453d0	2612	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
oks486	0:43cce7b453d0	2613	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
oks486	0:43cce7b453d0	2614	if (!csect) { /* On the cluster boundary? */
oks486	0:43cce7b453d0	2615	if (fp->fptr == 0) { /* On the top of the file? */
oks486	0:43cce7b453d0	2616	clst = fp->sclust; /* Follow from the origin */
oks486	0:43cce7b453d0	2617	} else { /* Middle or end of the file */
oks486	0:43cce7b453d0	2618	#if _USE_FASTSEEK
oks486	0:43cce7b453d0	2619	if (fp->cltbl)
oks486	0:43cce7b453d0	2620	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
oks486	0:43cce7b453d0	2621	else
oks486	0:43cce7b453d0	2622	#endif
oks486	0:43cce7b453d0	2623	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
oks486	0:43cce7b453d0	2624	}
oks486	0:43cce7b453d0	2625	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
oks486	0:43cce7b453d0	2626	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	2627	fp->clust = clst; /* Update current cluster */
oks486	0:43cce7b453d0	2628	}
oks486	0:43cce7b453d0	2629	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
oks486	0:43cce7b453d0	2630	if (!sect) ABORT(fp->fs, FR_INT_ERR);
oks486	0:43cce7b453d0	2631	sect += csect;
oks486	0:43cce7b453d0	2632	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
oks486	0:43cce7b453d0	2633	if (cc) { /* Read maximum contiguous sectors directly */
oks486	0:43cce7b453d0	2634	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
oks486	0:43cce7b453d0	2635	cc = fp->fs->csize - csect;
oks486	0:43cce7b453d0	2636	if (disk_read(fp->fs->drv, rbuff, sect, cc) != RES_OK)
oks486	0:43cce7b453d0	2637	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	2638	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
oks486	0:43cce7b453d0	2639	#if _FS_TINY
oks486	0:43cce7b453d0	2640	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
oks486	0:43cce7b453d0	2641	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
oks486	0:43cce7b453d0	2642	#else
oks486	0:43cce7b453d0	2643	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
oks486	0:43cce7b453d0	2644	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
oks486	0:43cce7b453d0	2645	#endif
oks486	0:43cce7b453d0	2646	#endif
oks486	0:43cce7b453d0	2647	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
oks486	0:43cce7b453d0	2648	continue;
oks486	0:43cce7b453d0	2649	}
oks486	0:43cce7b453d0	2650	#if !_FS_TINY
oks486	0:43cce7b453d0	2651	if (fp->dsect != sect) { /* Load data sector if not in cache */
oks486	0:43cce7b453d0	2652	#if !_FS_READONLY
oks486	0:43cce7b453d0	2653	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
oks486	0:43cce7b453d0	2654	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
oks486	0:43cce7b453d0	2655	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	2656	fp->flag &= ~FA__DIRTY;
oks486	0:43cce7b453d0	2657	}
oks486	0:43cce7b453d0	2658	#endif
oks486	0:43cce7b453d0	2659	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
oks486	0:43cce7b453d0	2660	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	2661	}
oks486	0:43cce7b453d0	2662	#endif
oks486	0:43cce7b453d0	2663	fp->dsect = sect;
oks486	0:43cce7b453d0	2664	}
oks486	0:43cce7b453d0	2665	rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
oks486	0:43cce7b453d0	2666	if (rcnt > btr) rcnt = btr;
oks486	0:43cce7b453d0	2667	#if _FS_TINY
oks486	0:43cce7b453d0	2668	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
oks486	0:43cce7b453d0	2669	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	2670	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
oks486	0:43cce7b453d0	2671	#else
oks486	0:43cce7b453d0	2672	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
oks486	0:43cce7b453d0	2673	#endif
oks486	0:43cce7b453d0	2674	}
oks486	0:43cce7b453d0	2675
oks486	0:43cce7b453d0	2676	LEAVE_FF(fp->fs, FR_OK);
oks486	0:43cce7b453d0	2677	}
oks486	0:43cce7b453d0	2678
oks486	0:43cce7b453d0	2679
oks486	0:43cce7b453d0	2680
oks486	0:43cce7b453d0	2681
oks486	0:43cce7b453d0	2682	#if !_FS_READONLY
oks486	0:43cce7b453d0	2683	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2684	/* Write File */
oks486	0:43cce7b453d0	2685	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2686
oks486	0:43cce7b453d0	2687	FRESULT f_write (
oks486	0:43cce7b453d0	2688	FIL* fp, /* Pointer to the file object */
oks486	0:43cce7b453d0	2689	const void buff, / Pointer to the data to be written */
oks486	0:43cce7b453d0	2690	UINT btw, /* Number of bytes to write */
oks486	0:43cce7b453d0	2691	UINT* bw /* Pointer to number of bytes written */
oks486	0:43cce7b453d0	2692	)
oks486	0:43cce7b453d0	2693	{
oks486	0:43cce7b453d0	2694	FRESULT res;
oks486	0:43cce7b453d0	2695	DWORD clst, sect;
oks486	0:43cce7b453d0	2696	UINT wcnt, cc;
oks486	0:43cce7b453d0	2697	const BYTE wbuff = (const BYTE)buff;
oks486	0:43cce7b453d0	2698	BYTE csect;
oks486	0:43cce7b453d0	2699
oks486	0:43cce7b453d0	2700
oks486	0:43cce7b453d0	2701	bw = 0; / Clear write byte counter */
oks486	0:43cce7b453d0	2702
oks486	0:43cce7b453d0	2703	res = validate(fp); /* Check validity */
oks486	0:43cce7b453d0	2704	if (res != FR_OK) LEAVE_FF(fp->fs, res);
oks486	0:43cce7b453d0	2705	if (fp->err) /* Check error */
oks486	0:43cce7b453d0	2706	LEAVE_FF(fp->fs, (FRESULT)fp->err);
oks486	0:43cce7b453d0	2707	if (!(fp->flag & FA_WRITE)) /* Check access mode */
oks486	0:43cce7b453d0	2708	LEAVE_FF(fp->fs, FR_DENIED);
oks486	0:43cce7b453d0	2709	if (fp->fptr + btw < fp->fptr) btw = 0; /* File size cannot reach 4GB */
oks486	0:43cce7b453d0	2710
oks486	0:43cce7b453d0	2711	for ( ; btw; /* Repeat until all data written */
oks486	0:43cce7b453d0	2712	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
oks486	0:43cce7b453d0	2713	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
oks486	0:43cce7b453d0	2714	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
oks486	0:43cce7b453d0	2715	if (!csect) { /* On the cluster boundary? */
oks486	0:43cce7b453d0	2716	if (fp->fptr == 0) { /* On the top of the file? */
oks486	0:43cce7b453d0	2717	clst = fp->sclust; /* Follow from the origin */
oks486	0:43cce7b453d0	2718	if (clst == 0) /* When no cluster is allocated, */
oks486	0:43cce7b453d0	2719	clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
oks486	0:43cce7b453d0	2720	} else { /* Middle or end of the file */
oks486	0:43cce7b453d0	2721	#if _USE_FASTSEEK
oks486	0:43cce7b453d0	2722	if (fp->cltbl)
oks486	0:43cce7b453d0	2723	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
oks486	0:43cce7b453d0	2724	else
oks486	0:43cce7b453d0	2725	#endif
oks486	0:43cce7b453d0	2726	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
oks486	0:43cce7b453d0	2727	}
oks486	0:43cce7b453d0	2728	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
oks486	0:43cce7b453d0	2729	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
oks486	0:43cce7b453d0	2730	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	2731	fp->clust = clst; /* Update current cluster */
oks486	0:43cce7b453d0	2732	if (fp->sclust == 0) fp->sclust = clst; /* Set start cluster if the first write */
oks486	0:43cce7b453d0	2733	}
oks486	0:43cce7b453d0	2734	#if _FS_TINY
oks486	0:43cce7b453d0	2735	if (fp->fs->winsect == fp->dsect && sync_window(fp->fs)) /* Write-back sector cache */
oks486	0:43cce7b453d0	2736	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	2737	#else
oks486	0:43cce7b453d0	2738	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
oks486	0:43cce7b453d0	2739	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
oks486	0:43cce7b453d0	2740	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	2741	fp->flag &= ~FA__DIRTY;
oks486	0:43cce7b453d0	2742	}
oks486	0:43cce7b453d0	2743	#endif
oks486	0:43cce7b453d0	2744	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
oks486	0:43cce7b453d0	2745	if (!sect) ABORT(fp->fs, FR_INT_ERR);
oks486	0:43cce7b453d0	2746	sect += csect;
oks486	0:43cce7b453d0	2747	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
oks486	0:43cce7b453d0	2748	if (cc) { /* Write maximum contiguous sectors directly */
oks486	0:43cce7b453d0	2749	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
oks486	0:43cce7b453d0	2750	cc = fp->fs->csize - csect;
oks486	0:43cce7b453d0	2751	if (disk_write(fp->fs->drv, wbuff, sect, cc) != RES_OK)
oks486	0:43cce7b453d0	2752	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	2753	#if _FS_MINIMIZE <= 2
oks486	0:43cce7b453d0	2754	#if _FS_TINY
oks486	0:43cce7b453d0	2755	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
oks486	0:43cce7b453d0	2756	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
oks486	0:43cce7b453d0	2757	fp->fs->wflag = 0;
oks486	0:43cce7b453d0	2758	}
oks486	0:43cce7b453d0	2759	#else
oks486	0:43cce7b453d0	2760	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
oks486	0:43cce7b453d0	2761	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
oks486	0:43cce7b453d0	2762	fp->flag &= ~FA__DIRTY;
oks486	0:43cce7b453d0	2763	}
oks486	0:43cce7b453d0	2764	#endif
oks486	0:43cce7b453d0	2765	#endif
oks486	0:43cce7b453d0	2766	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
oks486	0:43cce7b453d0	2767	continue;
oks486	0:43cce7b453d0	2768	}
oks486	0:43cce7b453d0	2769	#if _FS_TINY
oks486	0:43cce7b453d0	2770	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
oks486	0:43cce7b453d0	2771	if (sync_window(fp->fs)) ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	2772	fp->fs->winsect = sect;
oks486	0:43cce7b453d0	2773	}
oks486	0:43cce7b453d0	2774	#else
oks486	0:43cce7b453d0	2775	if (fp->dsect != sect) { /* Fill sector cache with file data */
oks486	0:43cce7b453d0	2776	if (fp->fptr < fp->fsize &&
oks486	0:43cce7b453d0	2777	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
oks486	0:43cce7b453d0	2778	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	2779	}
oks486	0:43cce7b453d0	2780	#endif
oks486	0:43cce7b453d0	2781	fp->dsect = sect;
oks486	0:43cce7b453d0	2782	}
oks486	0:43cce7b453d0	2783	wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
oks486	0:43cce7b453d0	2784	if (wcnt > btw) wcnt = btw;
oks486	0:43cce7b453d0	2785	#if _FS_TINY
oks486	0:43cce7b453d0	2786	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
oks486	0:43cce7b453d0	2787	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	2788	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
oks486	0:43cce7b453d0	2789	fp->fs->wflag = 1;
oks486	0:43cce7b453d0	2790	#else
oks486	0:43cce7b453d0	2791	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
oks486	0:43cce7b453d0	2792	fp->flag \|= FA__DIRTY;
oks486	0:43cce7b453d0	2793	#endif
oks486	0:43cce7b453d0	2794	}
oks486	0:43cce7b453d0	2795
oks486	0:43cce7b453d0	2796	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
oks486	0:43cce7b453d0	2797	fp->flag \|= FA__WRITTEN; /* Set file change flag */
oks486	0:43cce7b453d0	2798
oks486	0:43cce7b453d0	2799	LEAVE_FF(fp->fs, FR_OK);
oks486	0:43cce7b453d0	2800	}
oks486	0:43cce7b453d0	2801
oks486	0:43cce7b453d0	2802
oks486	0:43cce7b453d0	2803
oks486	0:43cce7b453d0	2804
oks486	0:43cce7b453d0	2805	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2806	/* Synchronize the File */
oks486	0:43cce7b453d0	2807	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2808
oks486	0:43cce7b453d0	2809	FRESULT f_sync (
oks486	0:43cce7b453d0	2810	FIL* fp /* Pointer to the file object */
oks486	0:43cce7b453d0	2811	)
oks486	0:43cce7b453d0	2812	{
oks486	0:43cce7b453d0	2813	FRESULT res;
oks486	0:43cce7b453d0	2814	DWORD tm;
oks486	0:43cce7b453d0	2815	BYTE *dir;
oks486	0:43cce7b453d0	2816
oks486	0:43cce7b453d0	2817
oks486	0:43cce7b453d0	2818	res = validate(fp); /* Check validity of the object */
oks486	0:43cce7b453d0	2819	if (res == FR_OK) {
oks486	0:43cce7b453d0	2820	if (fp->flag & FA__WRITTEN) { /* Is there any change to the file? */
oks486	0:43cce7b453d0	2821	#if !_FS_TINY
oks486	0:43cce7b453d0	2822	if (fp->flag & FA__DIRTY) { /* Write-back cached data if needed */
oks486	0:43cce7b453d0	2823	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
oks486	0:43cce7b453d0	2824	LEAVE_FF(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	2825	fp->flag &= ~FA__DIRTY;
oks486	0:43cce7b453d0	2826	}
oks486	0:43cce7b453d0	2827	#endif
oks486	0:43cce7b453d0	2828	/* Update the directory entry */
oks486	0:43cce7b453d0	2829	res = move_window(fp->fs, fp->dir_sect);
oks486	0:43cce7b453d0	2830	if (res == FR_OK) {
oks486	0:43cce7b453d0	2831	dir = fp->dir_ptr;
oks486	0:43cce7b453d0	2832	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
oks486	0:43cce7b453d0	2833	ST_DWORD(dir + DIR_FileSize, fp->fsize); /* Update file size */
oks486	0:43cce7b453d0	2834	st_clust(dir, fp->sclust); /* Update start cluster */
oks486	0:43cce7b453d0	2835	tm = GET_FATTIME(); /* Update modified time */
oks486	0:43cce7b453d0	2836	ST_DWORD(dir + DIR_WrtTime, tm);
oks486	0:43cce7b453d0	2837	ST_WORD(dir + DIR_LstAccDate, 0);
oks486	0:43cce7b453d0	2838	fp->flag &= ~FA__WRITTEN;
oks486	0:43cce7b453d0	2839	fp->fs->wflag = 1;
oks486	0:43cce7b453d0	2840	res = sync_fs(fp->fs);
oks486	0:43cce7b453d0	2841	}
oks486	0:43cce7b453d0	2842	}
oks486	0:43cce7b453d0	2843	}
oks486	0:43cce7b453d0	2844
oks486	0:43cce7b453d0	2845	LEAVE_FF(fp->fs, res);
oks486	0:43cce7b453d0	2846	}
oks486	0:43cce7b453d0	2847
oks486	0:43cce7b453d0	2848	#endif /* !_FS_READONLY */
oks486	0:43cce7b453d0	2849
oks486	0:43cce7b453d0	2850
oks486	0:43cce7b453d0	2851
oks486	0:43cce7b453d0	2852
oks486	0:43cce7b453d0	2853	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2854	/* Close File */
oks486	0:43cce7b453d0	2855	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2856
oks486	0:43cce7b453d0	2857	FRESULT f_close (
oks486	0:43cce7b453d0	2858	FIL fp / Pointer to the file object to be closed */
oks486	0:43cce7b453d0	2859	)
oks486	0:43cce7b453d0	2860	{
oks486	0:43cce7b453d0	2861	FRESULT res;
oks486	0:43cce7b453d0	2862
oks486	0:43cce7b453d0	2863
oks486	0:43cce7b453d0	2864	#if !_FS_READONLY
oks486	0:43cce7b453d0	2865	res = f_sync(fp); /* Flush cached data */
oks486	0:43cce7b453d0	2866	if (res == FR_OK)
oks486	0:43cce7b453d0	2867	#endif
oks486	0:43cce7b453d0	2868	{
oks486	0:43cce7b453d0	2869	res = validate(fp); /* Lock volume */
oks486	0:43cce7b453d0	2870	if (res == FR_OK) {
oks486	0:43cce7b453d0	2871	#if _FS_REENTRANT
oks486	0:43cce7b453d0	2872	FATFS *fs = fp->fs;
oks486	0:43cce7b453d0	2873	#endif
oks486	0:43cce7b453d0	2874	#if _FS_LOCK
oks486	0:43cce7b453d0	2875	res = dec_lock(fp->lockid); /* Decrement file open counter */
oks486	0:43cce7b453d0	2876	if (res == FR_OK)
oks486	0:43cce7b453d0	2877	#endif
oks486	0:43cce7b453d0	2878	fp->fs = 0; /* Invalidate file object */
oks486	0:43cce7b453d0	2879	#if _FS_REENTRANT
oks486	0:43cce7b453d0	2880	unlock_fs(fs, FR_OK); /* Unlock volume */
oks486	0:43cce7b453d0	2881	#endif
oks486	0:43cce7b453d0	2882	}
oks486	0:43cce7b453d0	2883	}
oks486	0:43cce7b453d0	2884	return res;
oks486	0:43cce7b453d0	2885	}
oks486	0:43cce7b453d0	2886
oks486	0:43cce7b453d0	2887
oks486	0:43cce7b453d0	2888
oks486	0:43cce7b453d0	2889
oks486	0:43cce7b453d0	2890	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2891	/* Change Current Directory or Current Drive, Get Current Directory */
oks486	0:43cce7b453d0	2892	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	2893
oks486	0:43cce7b453d0	2894	#if _FS_RPATH >= 1
oks486	0:43cce7b453d0	2895	#if _VOLUMES >= 2
oks486	0:43cce7b453d0	2896	FRESULT f_chdrive (
oks486	0:43cce7b453d0	2897	const TCHAR* path /* Drive number */
oks486	0:43cce7b453d0	2898	)
oks486	0:43cce7b453d0	2899	{
oks486	0:43cce7b453d0	2900	int vol;
oks486	0:43cce7b453d0	2901
oks486	0:43cce7b453d0	2902
oks486	0:43cce7b453d0	2903	vol = get_ldnumber(&path);
oks486	0:43cce7b453d0	2904	if (vol < 0) return FR_INVALID_DRIVE;
oks486	0:43cce7b453d0	2905
oks486	0:43cce7b453d0	2906	CurrVol = (BYTE)vol;
oks486	0:43cce7b453d0	2907
oks486	0:43cce7b453d0	2908	return FR_OK;
oks486	0:43cce7b453d0	2909	}
oks486	0:43cce7b453d0	2910	#endif
oks486	0:43cce7b453d0	2911
oks486	0:43cce7b453d0	2912
oks486	0:43cce7b453d0	2913	FRESULT f_chdir (
oks486	0:43cce7b453d0	2914	const TCHAR* path /* Pointer to the directory path */
oks486	0:43cce7b453d0	2915	)
oks486	0:43cce7b453d0	2916	{
oks486	0:43cce7b453d0	2917	FRESULT res;
oks486	0:43cce7b453d0	2918	DIR dj;
oks486	0:43cce7b453d0	2919	DEFINE_NAMEBUF;
oks486	0:43cce7b453d0	2920
oks486	0:43cce7b453d0	2921
oks486	0:43cce7b453d0	2922	/* Get logical drive number */
oks486	0:43cce7b453d0	2923	res = find_volume(&dj.fs, &path, 0);
oks486	0:43cce7b453d0	2924	if (res == FR_OK) {
oks486	0:43cce7b453d0	2925	INIT_BUF(dj);
oks486	0:43cce7b453d0	2926	res = follow_path(&dj, path); /* Follow the path */
oks486	0:43cce7b453d0	2927	FREE_BUF();
oks486	0:43cce7b453d0	2928	if (res == FR_OK) { /* Follow completed */
oks486	0:43cce7b453d0	2929	if (!dj.dir) {
oks486	0:43cce7b453d0	2930	dj.fs->cdir = dj.sclust; /* Start directory itself */
oks486	0:43cce7b453d0	2931	} else {
oks486	0:43cce7b453d0	2932	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
oks486	0:43cce7b453d0	2933	dj.fs->cdir = ld_clust(dj.fs, dj.dir);
oks486	0:43cce7b453d0	2934	else
oks486	0:43cce7b453d0	2935	res = FR_NO_PATH; /* Reached but a file */
oks486	0:43cce7b453d0	2936	}
oks486	0:43cce7b453d0	2937	}
oks486	0:43cce7b453d0	2938	if (res == FR_NO_FILE) res = FR_NO_PATH;
oks486	0:43cce7b453d0	2939	}
oks486	0:43cce7b453d0	2940
oks486	0:43cce7b453d0	2941	LEAVE_FF(dj.fs, res);
oks486	0:43cce7b453d0	2942	}
oks486	0:43cce7b453d0	2943
oks486	0:43cce7b453d0	2944
oks486	0:43cce7b453d0	2945	#if _FS_RPATH >= 2
oks486	0:43cce7b453d0	2946	FRESULT f_getcwd (
oks486	0:43cce7b453d0	2947	TCHAR* buff, /* Pointer to the directory path */
oks486	0:43cce7b453d0	2948	UINT len /* Size of path */
oks486	0:43cce7b453d0	2949	)
oks486	0:43cce7b453d0	2950	{
oks486	0:43cce7b453d0	2951	FRESULT res;
oks486	0:43cce7b453d0	2952	DIR dj;
oks486	0:43cce7b453d0	2953	UINT i, n;
oks486	0:43cce7b453d0	2954	DWORD ccl;
oks486	0:43cce7b453d0	2955	TCHAR *tp;
oks486	0:43cce7b453d0	2956	FILINFO fno;
oks486	0:43cce7b453d0	2957	DEFINE_NAMEBUF;
oks486	0:43cce7b453d0	2958
oks486	0:43cce7b453d0	2959
oks486	0:43cce7b453d0	2960	*buff = 0;
oks486	0:43cce7b453d0	2961	/* Get logical drive number */
oks486	0:43cce7b453d0	2962	res = find_volume(&dj.fs, (const TCHAR*)&buff, 0); / Get current volume */
oks486	0:43cce7b453d0	2963	if (res == FR_OK) {
oks486	0:43cce7b453d0	2964	INIT_BUF(dj);
oks486	0:43cce7b453d0	2965	i = len; /* Bottom of buffer (directory stack base) */
oks486	0:43cce7b453d0	2966	dj.sclust = dj.fs->cdir; /* Start to follow upper directory from current directory */
oks486	0:43cce7b453d0	2967	while ((ccl = dj.sclust) != 0) { /* Repeat while current directory is a sub-directory */
oks486	0:43cce7b453d0	2968	res = dir_sdi(&dj, 1); /* Get parent directory */
oks486	0:43cce7b453d0	2969	if (res != FR_OK) break;
oks486	0:43cce7b453d0	2970	res = dir_read(&dj, 0);
oks486	0:43cce7b453d0	2971	if (res != FR_OK) break;
oks486	0:43cce7b453d0	2972	dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent directory */
oks486	0:43cce7b453d0	2973	res = dir_sdi(&dj, 0);
oks486	0:43cce7b453d0	2974	if (res != FR_OK) break;
oks486	0:43cce7b453d0	2975	do { /* Find the entry links to the child directory */
oks486	0:43cce7b453d0	2976	res = dir_read(&dj, 0);
oks486	0:43cce7b453d0	2977	if (res != FR_OK) break;
oks486	0:43cce7b453d0	2978	if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
oks486	0:43cce7b453d0	2979	res = dir_next(&dj, 0);
oks486	0:43cce7b453d0	2980	} while (res == FR_OK);
oks486	0:43cce7b453d0	2981	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
oks486	0:43cce7b453d0	2982	if (res != FR_OK) break;
oks486	0:43cce7b453d0	2983	#if _USE_LFN
oks486	0:43cce7b453d0	2984	fno.lfname = buff;
oks486	0:43cce7b453d0	2985	fno.lfsize = i;
oks486	0:43cce7b453d0	2986	#endif
oks486	0:43cce7b453d0	2987	get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */
oks486	0:43cce7b453d0	2988	tp = fno.fname;
oks486	0:43cce7b453d0	2989	#if _USE_LFN
oks486	0:43cce7b453d0	2990	if (*buff) tp = buff;
oks486	0:43cce7b453d0	2991	#endif
oks486	0:43cce7b453d0	2992	for (n = 0; tp[n]; n++) ;
oks486	0:43cce7b453d0	2993	if (i < n + 3) {
oks486	0:43cce7b453d0	2994	res = FR_NOT_ENOUGH_CORE; break;
oks486	0:43cce7b453d0	2995	}
oks486	0:43cce7b453d0	2996	while (n) buff[--i] = tp[--n];
oks486	0:43cce7b453d0	2997	buff[--i] = '/';
oks486	0:43cce7b453d0	2998	}
oks486	0:43cce7b453d0	2999	tp = buff;
oks486	0:43cce7b453d0	3000	if (res == FR_OK) {
oks486	0:43cce7b453d0	3001	#if _VOLUMES >= 2
oks486	0:43cce7b453d0	3002	tp++ = '0' + CurrVol; / Put drive number */
oks486	0:43cce7b453d0	3003	*tp++ = ':';
oks486	0:43cce7b453d0	3004	#endif
oks486	0:43cce7b453d0	3005	if (i == len) { /* Root-directory */
oks486	0:43cce7b453d0	3006	*tp++ = '/';
oks486	0:43cce7b453d0	3007	} else { /* Sub-directroy */
oks486	0:43cce7b453d0	3008	do /* Add stacked path str */
oks486	0:43cce7b453d0	3009	*tp++ = buff[i++];
oks486	0:43cce7b453d0	3010	while (i < len);
oks486	0:43cce7b453d0	3011	}
oks486	0:43cce7b453d0	3012	}
oks486	0:43cce7b453d0	3013	*tp = 0;
oks486	0:43cce7b453d0	3014	FREE_BUF();
oks486	0:43cce7b453d0	3015	}
oks486	0:43cce7b453d0	3016
oks486	0:43cce7b453d0	3017	LEAVE_FF(dj.fs, res);
oks486	0:43cce7b453d0	3018	}
oks486	0:43cce7b453d0	3019	#endif /* _FS_RPATH >= 2 */
oks486	0:43cce7b453d0	3020	#endif /* _FS_RPATH >= 1 */
oks486	0:43cce7b453d0	3021
oks486	0:43cce7b453d0	3022
oks486	0:43cce7b453d0	3023
oks486	0:43cce7b453d0	3024	#if _FS_MINIMIZE <= 2
oks486	0:43cce7b453d0	3025	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3026	/* Seek File R/W Pointer */
oks486	0:43cce7b453d0	3027	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3028
oks486	0:43cce7b453d0	3029	FRESULT f_lseek (
oks486	0:43cce7b453d0	3030	FIL* fp, /* Pointer to the file object */
oks486	0:43cce7b453d0	3031	DWORD ofs /* File pointer from top of file */
oks486	0:43cce7b453d0	3032	)
oks486	0:43cce7b453d0	3033	{
oks486	0:43cce7b453d0	3034	FRESULT res;
oks486	0:43cce7b453d0	3035	DWORD clst, bcs, nsect, ifptr;
oks486	0:43cce7b453d0	3036	#if _USE_FASTSEEK
oks486	0:43cce7b453d0	3037	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
oks486	0:43cce7b453d0	3038	#endif
oks486	0:43cce7b453d0	3039
oks486	0:43cce7b453d0	3040
oks486	0:43cce7b453d0	3041	res = validate(fp); /* Check validity of the object */
oks486	0:43cce7b453d0	3042	if (res != FR_OK) LEAVE_FF(fp->fs, res);
oks486	0:43cce7b453d0	3043	if (fp->err) /* Check error */
oks486	0:43cce7b453d0	3044	LEAVE_FF(fp->fs, (FRESULT)fp->err);
oks486	0:43cce7b453d0	3045
oks486	0:43cce7b453d0	3046	#if _USE_FASTSEEK
oks486	0:43cce7b453d0	3047	if (fp->cltbl) { /* Fast seek */
oks486	0:43cce7b453d0	3048	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
oks486	0:43cce7b453d0	3049	tbl = fp->cltbl;
oks486	0:43cce7b453d0	3050	tlen = tbl++; ulen = 2; / Given table size and required table size */
oks486	0:43cce7b453d0	3051	cl = fp->sclust; /* Top of the chain */
oks486	0:43cce7b453d0	3052	if (cl) {
oks486	0:43cce7b453d0	3053	do {
oks486	0:43cce7b453d0	3054	/* Get a fragment */
oks486	0:43cce7b453d0	3055	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
oks486	0:43cce7b453d0	3056	do {
oks486	0:43cce7b453d0	3057	pcl = cl; ncl++;
oks486	0:43cce7b453d0	3058	cl = get_fat(fp->fs, cl);
oks486	0:43cce7b453d0	3059	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
oks486	0:43cce7b453d0	3060	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	3061	} while (cl == pcl + 1);
oks486	0:43cce7b453d0	3062	if (ulen <= tlen) { /* Store the length and top of the fragment */
oks486	0:43cce7b453d0	3063	tbl++ = ncl; tbl++ = tcl;
oks486	0:43cce7b453d0	3064	}
oks486	0:43cce7b453d0	3065	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
oks486	0:43cce7b453d0	3066	}
oks486	0:43cce7b453d0	3067	fp->cltbl = ulen; / Number of items used */
oks486	0:43cce7b453d0	3068	if (ulen <= tlen)
oks486	0:43cce7b453d0	3069	tbl = 0; / Terminate table */
oks486	0:43cce7b453d0	3070	else
oks486	0:43cce7b453d0	3071	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
oks486	0:43cce7b453d0	3072
oks486	0:43cce7b453d0	3073	} else { /* Fast seek */
oks486	0:43cce7b453d0	3074	if (ofs > fp->fsize) /* Clip offset at the file size */
oks486	0:43cce7b453d0	3075	ofs = fp->fsize;
oks486	0:43cce7b453d0	3076	fp->fptr = ofs; /* Set file pointer */
oks486	0:43cce7b453d0	3077	if (ofs) {
oks486	0:43cce7b453d0	3078	fp->clust = clmt_clust(fp, ofs - 1);
oks486	0:43cce7b453d0	3079	dsc = clust2sect(fp->fs, fp->clust);
oks486	0:43cce7b453d0	3080	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
oks486	0:43cce7b453d0	3081	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
oks486	0:43cce7b453d0	3082	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
oks486	0:43cce7b453d0	3083	#if !_FS_TINY
oks486	0:43cce7b453d0	3084	#if !_FS_READONLY
oks486	0:43cce7b453d0	3085	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
oks486	0:43cce7b453d0	3086	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
oks486	0:43cce7b453d0	3087	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	3088	fp->flag &= ~FA__DIRTY;
oks486	0:43cce7b453d0	3089	}
oks486	0:43cce7b453d0	3090	#endif
oks486	0:43cce7b453d0	3091	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
oks486	0:43cce7b453d0	3092	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	3093	#endif
oks486	0:43cce7b453d0	3094	fp->dsect = dsc;
oks486	0:43cce7b453d0	3095	}
oks486	0:43cce7b453d0	3096	}
oks486	0:43cce7b453d0	3097	}
oks486	0:43cce7b453d0	3098	} else
oks486	0:43cce7b453d0	3099	#endif
oks486	0:43cce7b453d0	3100
oks486	0:43cce7b453d0	3101	/* Normal Seek */
oks486	0:43cce7b453d0	3102	{
oks486	0:43cce7b453d0	3103	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
oks486	0:43cce7b453d0	3104	#if !_FS_READONLY
oks486	0:43cce7b453d0	3105	&& !(fp->flag & FA_WRITE)
oks486	0:43cce7b453d0	3106	#endif
oks486	0:43cce7b453d0	3107	) ofs = fp->fsize;
oks486	0:43cce7b453d0	3108
oks486	0:43cce7b453d0	3109	ifptr = fp->fptr;
oks486	0:43cce7b453d0	3110	fp->fptr = nsect = 0;
oks486	0:43cce7b453d0	3111	if (ofs) {
oks486	0:43cce7b453d0	3112	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
oks486	0:43cce7b453d0	3113	if (ifptr > 0 &&
oks486	0:43cce7b453d0	3114	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
oks486	0:43cce7b453d0	3115	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
oks486	0:43cce7b453d0	3116	ofs -= fp->fptr;
oks486	0:43cce7b453d0	3117	clst = fp->clust;
oks486	0:43cce7b453d0	3118	} else { /* When seek to back cluster, */
oks486	0:43cce7b453d0	3119	clst = fp->sclust; /* start from the first cluster */
oks486	0:43cce7b453d0	3120	#if !_FS_READONLY
oks486	0:43cce7b453d0	3121	if (clst == 0) { /* If no cluster chain, create a new chain */
oks486	0:43cce7b453d0	3122	clst = create_chain(fp->fs, 0);
oks486	0:43cce7b453d0	3123	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
oks486	0:43cce7b453d0	3124	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	3125	fp->sclust = clst;
oks486	0:43cce7b453d0	3126	}
oks486	0:43cce7b453d0	3127	#endif
oks486	0:43cce7b453d0	3128	fp->clust = clst;
oks486	0:43cce7b453d0	3129	}
oks486	0:43cce7b453d0	3130	if (clst != 0) {
oks486	0:43cce7b453d0	3131	while (ofs > bcs) { /* Cluster following loop */
oks486	0:43cce7b453d0	3132	#if !_FS_READONLY
oks486	0:43cce7b453d0	3133	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
oks486	0:43cce7b453d0	3134	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
oks486	0:43cce7b453d0	3135	if (clst == 0) { /* When disk gets full, clip file size */
oks486	0:43cce7b453d0	3136	ofs = bcs; break;
oks486	0:43cce7b453d0	3137	}
oks486	0:43cce7b453d0	3138	} else
oks486	0:43cce7b453d0	3139	#endif
oks486	0:43cce7b453d0	3140	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
oks486	0:43cce7b453d0	3141	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	3142	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
oks486	0:43cce7b453d0	3143	fp->clust = clst;
oks486	0:43cce7b453d0	3144	fp->fptr += bcs;
oks486	0:43cce7b453d0	3145	ofs -= bcs;
oks486	0:43cce7b453d0	3146	}
oks486	0:43cce7b453d0	3147	fp->fptr += ofs;
oks486	0:43cce7b453d0	3148	if (ofs % SS(fp->fs)) {
oks486	0:43cce7b453d0	3149	nsect = clust2sect(fp->fs, clst); /* Current sector */
oks486	0:43cce7b453d0	3150	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
oks486	0:43cce7b453d0	3151	nsect += ofs / SS(fp->fs);
oks486	0:43cce7b453d0	3152	}
oks486	0:43cce7b453d0	3153	}
oks486	0:43cce7b453d0	3154	}
oks486	0:43cce7b453d0	3155	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
oks486	0:43cce7b453d0	3156	#if !_FS_TINY
oks486	0:43cce7b453d0	3157	#if !_FS_READONLY
oks486	0:43cce7b453d0	3158	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
oks486	0:43cce7b453d0	3159	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
oks486	0:43cce7b453d0	3160	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	3161	fp->flag &= ~FA__DIRTY;
oks486	0:43cce7b453d0	3162	}
oks486	0:43cce7b453d0	3163	#endif
oks486	0:43cce7b453d0	3164	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
oks486	0:43cce7b453d0	3165	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	3166	#endif
oks486	0:43cce7b453d0	3167	fp->dsect = nsect;
oks486	0:43cce7b453d0	3168	}
oks486	0:43cce7b453d0	3169	#if !_FS_READONLY
oks486	0:43cce7b453d0	3170	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
oks486	0:43cce7b453d0	3171	fp->fsize = fp->fptr;
oks486	0:43cce7b453d0	3172	fp->flag \|= FA__WRITTEN;
oks486	0:43cce7b453d0	3173	}
oks486	0:43cce7b453d0	3174	#endif
oks486	0:43cce7b453d0	3175	}
oks486	0:43cce7b453d0	3176
oks486	0:43cce7b453d0	3177	LEAVE_FF(fp->fs, res);
oks486	0:43cce7b453d0	3178	}
oks486	0:43cce7b453d0	3179
oks486	0:43cce7b453d0	3180
oks486	0:43cce7b453d0	3181
oks486	0:43cce7b453d0	3182	#if _FS_MINIMIZE <= 1
oks486	0:43cce7b453d0	3183	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3184	/* Create a Directory Object */
oks486	0:43cce7b453d0	3185	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3186
oks486	0:43cce7b453d0	3187	FRESULT f_opendir (
oks486	0:43cce7b453d0	3188	DIR* dp, /* Pointer to directory object to create */
oks486	0:43cce7b453d0	3189	const TCHAR* path /* Pointer to the directory path */
oks486	0:43cce7b453d0	3190	)
oks486	0:43cce7b453d0	3191	{
oks486	0:43cce7b453d0	3192	FRESULT res;
oks486	0:43cce7b453d0	3193	FATFS* fs;
oks486	0:43cce7b453d0	3194	DEFINE_NAMEBUF;
oks486	0:43cce7b453d0	3195
oks486	0:43cce7b453d0	3196
oks486	0:43cce7b453d0	3197	if (!dp) return FR_INVALID_OBJECT;
oks486	0:43cce7b453d0	3198
oks486	0:43cce7b453d0	3199	/* Get logical drive number */
oks486	0:43cce7b453d0	3200	res = find_volume(&fs, &path, 0);
oks486	0:43cce7b453d0	3201	if (res == FR_OK) {
oks486	0:43cce7b453d0	3202	dp->fs = fs;
oks486	0:43cce7b453d0	3203	INIT_BUF(*dp);
oks486	0:43cce7b453d0	3204	res = follow_path(dp, path); /* Follow the path to the directory */
oks486	0:43cce7b453d0	3205	FREE_BUF();
oks486	0:43cce7b453d0	3206	if (res == FR_OK) { /* Follow completed */
oks486	0:43cce7b453d0	3207	if (dp->dir) { /* It is not the origin directory itself */
oks486	0:43cce7b453d0	3208	if (dp->dir[DIR_Attr] & AM_DIR) /* The object is a sub directory */
oks486	0:43cce7b453d0	3209	dp->sclust = ld_clust(fs, dp->dir);
oks486	0:43cce7b453d0	3210	else /* The object is a file */
oks486	0:43cce7b453d0	3211	res = FR_NO_PATH;
oks486	0:43cce7b453d0	3212	}
oks486	0:43cce7b453d0	3213	if (res == FR_OK) {
oks486	0:43cce7b453d0	3214	dp->id = fs->id;
oks486	0:43cce7b453d0	3215	res = dir_sdi(dp, 0); /* Rewind directory */
oks486	0:43cce7b453d0	3216	#if _FS_LOCK
oks486	0:43cce7b453d0	3217	if (res == FR_OK) {
oks486	0:43cce7b453d0	3218	if (dp->sclust) {
oks486	0:43cce7b453d0	3219	dp->lockid = inc_lock(dp, 0); /* Lock the sub directory */
oks486	0:43cce7b453d0	3220	if (!dp->lockid)
oks486	0:43cce7b453d0	3221	res = FR_TOO_MANY_OPEN_FILES;
oks486	0:43cce7b453d0	3222	} else {
oks486	0:43cce7b453d0	3223	dp->lockid = 0; /* Root directory need not to be locked */
oks486	0:43cce7b453d0	3224	}
oks486	0:43cce7b453d0	3225	}
oks486	0:43cce7b453d0	3226	#endif
oks486	0:43cce7b453d0	3227	}
oks486	0:43cce7b453d0	3228	}
oks486	0:43cce7b453d0	3229	if (res == FR_NO_FILE) res = FR_NO_PATH;
oks486	0:43cce7b453d0	3230	}
oks486	0:43cce7b453d0	3231	if (res != FR_OK) dp->fs = 0; /* Invalidate the directory object if function faild */
oks486	0:43cce7b453d0	3232
oks486	0:43cce7b453d0	3233	LEAVE_FF(fs, res);
oks486	0:43cce7b453d0	3234	}
oks486	0:43cce7b453d0	3235
oks486	0:43cce7b453d0	3236
oks486	0:43cce7b453d0	3237
oks486	0:43cce7b453d0	3238
oks486	0:43cce7b453d0	3239	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3240	/* Close Directory */
oks486	0:43cce7b453d0	3241	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3242
oks486	0:43cce7b453d0	3243	FRESULT f_closedir (
oks486	0:43cce7b453d0	3244	DIR dp / Pointer to the directory object to be closed */
oks486	0:43cce7b453d0	3245	)
oks486	0:43cce7b453d0	3246	{
oks486	0:43cce7b453d0	3247	FRESULT res;
oks486	0:43cce7b453d0	3248
oks486	0:43cce7b453d0	3249
oks486	0:43cce7b453d0	3250	res = validate(dp);
oks486	0:43cce7b453d0	3251	if (res == FR_OK) {
oks486	0:43cce7b453d0	3252	#if _FS_REENTRANT
oks486	0:43cce7b453d0	3253	FATFS *fs = dp->fs;
oks486	0:43cce7b453d0	3254	#endif
oks486	0:43cce7b453d0	3255	#if _FS_LOCK
oks486	0:43cce7b453d0	3256	if (dp->lockid) /* Decrement sub-directory open counter */
oks486	0:43cce7b453d0	3257	res = dec_lock(dp->lockid);
oks486	0:43cce7b453d0	3258	if (res == FR_OK)
oks486	0:43cce7b453d0	3259	#endif
oks486	0:43cce7b453d0	3260	dp->fs = 0; /* Invalidate directory object */
oks486	0:43cce7b453d0	3261	#if _FS_REENTRANT
oks486	0:43cce7b453d0	3262	unlock_fs(fs, FR_OK); /* Unlock volume */
oks486	0:43cce7b453d0	3263	#endif
oks486	0:43cce7b453d0	3264	}
oks486	0:43cce7b453d0	3265	return res;
oks486	0:43cce7b453d0	3266	}
oks486	0:43cce7b453d0	3267
oks486	0:43cce7b453d0	3268
oks486	0:43cce7b453d0	3269
oks486	0:43cce7b453d0	3270
oks486	0:43cce7b453d0	3271	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3272	/* Read Directory Entries in Sequence */
oks486	0:43cce7b453d0	3273	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3274
oks486	0:43cce7b453d0	3275	FRESULT f_readdir (
oks486	0:43cce7b453d0	3276	DIR* dp, /* Pointer to the open directory object */
oks486	0:43cce7b453d0	3277	FILINFO* fno /* Pointer to file information to return */
oks486	0:43cce7b453d0	3278	)
oks486	0:43cce7b453d0	3279	{
oks486	0:43cce7b453d0	3280	FRESULT res;
oks486	0:43cce7b453d0	3281	DEFINE_NAMEBUF;
oks486	0:43cce7b453d0	3282
oks486	0:43cce7b453d0	3283
oks486	0:43cce7b453d0	3284	res = validate(dp); /* Check validity of the object */
oks486	0:43cce7b453d0	3285	if (res == FR_OK) {
oks486	0:43cce7b453d0	3286	if (!fno) {
oks486	0:43cce7b453d0	3287	res = dir_sdi(dp, 0); /* Rewind the directory object */
oks486	0:43cce7b453d0	3288	} else {
oks486	0:43cce7b453d0	3289	INIT_BUF(*dp);
oks486	0:43cce7b453d0	3290	res = dir_read(dp, 0); /* Read an item */
oks486	0:43cce7b453d0	3291	if (res == FR_NO_FILE) { /* Reached end of directory */
oks486	0:43cce7b453d0	3292	dp->sect = 0;
oks486	0:43cce7b453d0	3293	res = FR_OK;
oks486	0:43cce7b453d0	3294	}
oks486	0:43cce7b453d0	3295	if (res == FR_OK) { /* A valid entry is found */
oks486	0:43cce7b453d0	3296	get_fileinfo(dp, fno); /* Get the object information */
oks486	0:43cce7b453d0	3297	res = dir_next(dp, 0); /* Increment index for next */
oks486	0:43cce7b453d0	3298	if (res == FR_NO_FILE) {
oks486	0:43cce7b453d0	3299	dp->sect = 0;
oks486	0:43cce7b453d0	3300	res = FR_OK;
oks486	0:43cce7b453d0	3301	}
oks486	0:43cce7b453d0	3302	}
oks486	0:43cce7b453d0	3303	FREE_BUF();
oks486	0:43cce7b453d0	3304	}
oks486	0:43cce7b453d0	3305	}
oks486	0:43cce7b453d0	3306
oks486	0:43cce7b453d0	3307	LEAVE_FF(dp->fs, res);
oks486	0:43cce7b453d0	3308	}
oks486	0:43cce7b453d0	3309
oks486	0:43cce7b453d0	3310
oks486	0:43cce7b453d0	3311
oks486	0:43cce7b453d0	3312	#if _USE_FIND
oks486	0:43cce7b453d0	3313	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3314	/* Find next file */
oks486	0:43cce7b453d0	3315	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3316
oks486	0:43cce7b453d0	3317	FRESULT f_findnext (
oks486	0:43cce7b453d0	3318	DIR* dp, /* Pointer to the open directory object */
oks486	0:43cce7b453d0	3319	FILINFO* fno /* Pointer to the file information structure */
oks486	0:43cce7b453d0	3320	)
oks486	0:43cce7b453d0	3321	{
oks486	0:43cce7b453d0	3322	FRESULT res;
oks486	0:43cce7b453d0	3323
oks486	0:43cce7b453d0	3324
oks486	0:43cce7b453d0	3325	for (;;) {
oks486	0:43cce7b453d0	3326	res = f_readdir(dp, fno); /* Get a directory item */
oks486	0:43cce7b453d0	3327	if (res != FR_OK \|\| !fno \|\| !fno->fname[0]) break; /* Terminate if any error or end of directory */
oks486	0:43cce7b453d0	3328	#if _USE_LFN
oks486	0:43cce7b453d0	3329	if (fno->lfname && pattern_matching(dp->pat, fno->lfname, 0, 0)) break; /* Test for LFN if exist */
oks486	0:43cce7b453d0	3330	#endif
oks486	0:43cce7b453d0	3331	if (pattern_matching(dp->pat, fno->fname, 0, 0)) break; /* Test for SFN */
oks486	0:43cce7b453d0	3332	}
oks486	0:43cce7b453d0	3333	return res;
oks486	0:43cce7b453d0	3334
oks486	0:43cce7b453d0	3335	}
oks486	0:43cce7b453d0	3336
oks486	0:43cce7b453d0	3337
oks486	0:43cce7b453d0	3338
oks486	0:43cce7b453d0	3339	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3340	/* Find first file */
oks486	0:43cce7b453d0	3341	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3342
oks486	0:43cce7b453d0	3343	FRESULT f_findfirst (
oks486	0:43cce7b453d0	3344	DIR* dp, /* Pointer to the blank directory object */
oks486	0:43cce7b453d0	3345	FILINFO* fno, /* Pointer to the file information structure */
oks486	0:43cce7b453d0	3346	const TCHAR* path, /* Pointer to the directory to open */
oks486	0:43cce7b453d0	3347	const TCHAR* pattern /* Pointer to the matching pattern */
oks486	0:43cce7b453d0	3348	)
oks486	0:43cce7b453d0	3349	{
oks486	0:43cce7b453d0	3350	FRESULT res;
oks486	0:43cce7b453d0	3351
oks486	0:43cce7b453d0	3352
oks486	0:43cce7b453d0	3353	dp->pat = pattern; /* Save pointer to pattern string */
oks486	0:43cce7b453d0	3354	res = f_opendir(dp, path); /* Open the target directory */
oks486	0:43cce7b453d0	3355	if (res == FR_OK)
oks486	0:43cce7b453d0	3356	res = f_findnext(dp, fno); /* Find the first item */
oks486	0:43cce7b453d0	3357	return res;
oks486	0:43cce7b453d0	3358	}
oks486	0:43cce7b453d0	3359
oks486	0:43cce7b453d0	3360	#endif /* _USE_FIND */
oks486	0:43cce7b453d0	3361
oks486	0:43cce7b453d0	3362
oks486	0:43cce7b453d0	3363
oks486	0:43cce7b453d0	3364	#if _FS_MINIMIZE == 0
oks486	0:43cce7b453d0	3365	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3366	/* Get File Status */
oks486	0:43cce7b453d0	3367	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3368
oks486	0:43cce7b453d0	3369	FRESULT f_stat (
oks486	0:43cce7b453d0	3370	const TCHAR* path, /* Pointer to the file path */
oks486	0:43cce7b453d0	3371	FILINFO* fno /* Pointer to file information to return */
oks486	0:43cce7b453d0	3372	)
oks486	0:43cce7b453d0	3373	{
oks486	0:43cce7b453d0	3374	FRESULT res;
oks486	0:43cce7b453d0	3375	DIR dj;
oks486	0:43cce7b453d0	3376	DEFINE_NAMEBUF;
oks486	0:43cce7b453d0	3377
oks486	0:43cce7b453d0	3378
oks486	0:43cce7b453d0	3379	/* Get logical drive number */
oks486	0:43cce7b453d0	3380	res = find_volume(&dj.fs, &path, 0);
oks486	0:43cce7b453d0	3381	if (res == FR_OK) {
oks486	0:43cce7b453d0	3382	INIT_BUF(dj);
oks486	0:43cce7b453d0	3383	res = follow_path(&dj, path); /* Follow the file path */
oks486	0:43cce7b453d0	3384	if (res == FR_OK) { /* Follow completed */
oks486	0:43cce7b453d0	3385	if (dj.dir) { /* Found an object */
oks486	0:43cce7b453d0	3386	if (fno) get_fileinfo(&dj, fno);
oks486	0:43cce7b453d0	3387	} else { /* It is root directory */
oks486	0:43cce7b453d0	3388	res = FR_INVALID_NAME;
oks486	0:43cce7b453d0	3389	}
oks486	0:43cce7b453d0	3390	}
oks486	0:43cce7b453d0	3391	FREE_BUF();
oks486	0:43cce7b453d0	3392	}
oks486	0:43cce7b453d0	3393
oks486	0:43cce7b453d0	3394	LEAVE_FF(dj.fs, res);
oks486	0:43cce7b453d0	3395	}
oks486	0:43cce7b453d0	3396
oks486	0:43cce7b453d0	3397
oks486	0:43cce7b453d0	3398
oks486	0:43cce7b453d0	3399	#if !_FS_READONLY
oks486	0:43cce7b453d0	3400	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3401	/* Get Number of Free Clusters */
oks486	0:43cce7b453d0	3402	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3403
oks486	0:43cce7b453d0	3404	FRESULT f_getfree (
oks486	0:43cce7b453d0	3405	const TCHAR* path, /* Path name of the logical drive number */
oks486	0:43cce7b453d0	3406	DWORD* nclst, /* Pointer to a variable to return number of free clusters */
oks486	0:43cce7b453d0	3407	FATFS** fatfs /* Pointer to return pointer to corresponding file system object */
oks486	0:43cce7b453d0	3408	)
oks486	0:43cce7b453d0	3409	{
oks486	0:43cce7b453d0	3410	FRESULT res;
oks486	0:43cce7b453d0	3411	FATFS *fs;
oks486	0:43cce7b453d0	3412	DWORD nfree, clst, sect, stat;
oks486	0:43cce7b453d0	3413	UINT i;
oks486	0:43cce7b453d0	3414	BYTE fat, *p;
oks486	0:43cce7b453d0	3415
oks486	0:43cce7b453d0	3416
oks486	0:43cce7b453d0	3417	/* Get logical drive number */
oks486	0:43cce7b453d0	3418	res = find_volume(fatfs, &path, 0);
oks486	0:43cce7b453d0	3419	fs = *fatfs;
oks486	0:43cce7b453d0	3420	if (res == FR_OK) {
oks486	0:43cce7b453d0	3421	/* If free_clust is valid, return it without full cluster scan */
oks486	0:43cce7b453d0	3422	if (fs->free_clust <= fs->n_fatent - 2) {
oks486	0:43cce7b453d0	3423	*nclst = fs->free_clust;
oks486	0:43cce7b453d0	3424	} else {
oks486	0:43cce7b453d0	3425	/* Get number of free clusters */
oks486	0:43cce7b453d0	3426	fat = fs->fs_type;
oks486	0:43cce7b453d0	3427	nfree = 0;
oks486	0:43cce7b453d0	3428	if (fat == FS_FAT12) { /* Sector unalighed entries: Search FAT via regular routine. */
oks486	0:43cce7b453d0	3429	clst = 2;
oks486	0:43cce7b453d0	3430	do {
oks486	0:43cce7b453d0	3431	stat = get_fat(fs, clst);
oks486	0:43cce7b453d0	3432	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
oks486	0:43cce7b453d0	3433	if (stat == 1) { res = FR_INT_ERR; break; }
oks486	0:43cce7b453d0	3434	if (stat == 0) nfree++;
oks486	0:43cce7b453d0	3435	} while (++clst < fs->n_fatent);
oks486	0:43cce7b453d0	3436	} else { /* Sector alighed entries: Accelerate the FAT search. */
oks486	0:43cce7b453d0	3437	clst = fs->n_fatent; sect = fs->fatbase;
oks486	0:43cce7b453d0	3438	i = 0; p = 0;
oks486	0:43cce7b453d0	3439	do {
oks486	0:43cce7b453d0	3440	if (!i) {
oks486	0:43cce7b453d0	3441	res = move_window(fs, sect++);
oks486	0:43cce7b453d0	3442	if (res != FR_OK) break;
oks486	0:43cce7b453d0	3443	p = fs->win;
oks486	0:43cce7b453d0	3444	i = SS(fs);
oks486	0:43cce7b453d0	3445	}
oks486	0:43cce7b453d0	3446	if (fat == FS_FAT16) {
oks486	0:43cce7b453d0	3447	if (LD_WORD(p) == 0) nfree++;
oks486	0:43cce7b453d0	3448	p += 2; i -= 2;
oks486	0:43cce7b453d0	3449	} else {
oks486	0:43cce7b453d0	3450	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) nfree++;
oks486	0:43cce7b453d0	3451	p += 4; i -= 4;
oks486	0:43cce7b453d0	3452	}
oks486	0:43cce7b453d0	3453	} while (--clst);
oks486	0:43cce7b453d0	3454	}
oks486	0:43cce7b453d0	3455	fs->free_clust = nfree; /* free_clust is valid */
oks486	0:43cce7b453d0	3456	fs->fsi_flag \|= 1; /* FSInfo is to be updated */
oks486	0:43cce7b453d0	3457	nclst = nfree; / Return the free clusters */
oks486	0:43cce7b453d0	3458	}
oks486	0:43cce7b453d0	3459	}
oks486	0:43cce7b453d0	3460	LEAVE_FF(fs, res);
oks486	0:43cce7b453d0	3461	}
oks486	0:43cce7b453d0	3462
oks486	0:43cce7b453d0	3463
oks486	0:43cce7b453d0	3464
oks486	0:43cce7b453d0	3465
oks486	0:43cce7b453d0	3466	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3467	/* Truncate File */
oks486	0:43cce7b453d0	3468	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3469
oks486	0:43cce7b453d0	3470	FRESULT f_truncate (
oks486	0:43cce7b453d0	3471	FIL* fp /* Pointer to the file object */
oks486	0:43cce7b453d0	3472	)
oks486	0:43cce7b453d0	3473	{
oks486	0:43cce7b453d0	3474	FRESULT res;
oks486	0:43cce7b453d0	3475	DWORD ncl;
oks486	0:43cce7b453d0	3476
oks486	0:43cce7b453d0	3477
oks486	0:43cce7b453d0	3478	res = validate(fp); /* Check validity of the object */
oks486	0:43cce7b453d0	3479	if (res == FR_OK) {
oks486	0:43cce7b453d0	3480	if (fp->err) { /* Check error */
oks486	0:43cce7b453d0	3481	res = (FRESULT)fp->err;
oks486	0:43cce7b453d0	3482	} else {
oks486	0:43cce7b453d0	3483	if (!(fp->flag & FA_WRITE)) /* Check access mode */
oks486	0:43cce7b453d0	3484	res = FR_DENIED;
oks486	0:43cce7b453d0	3485	}
oks486	0:43cce7b453d0	3486	}
oks486	0:43cce7b453d0	3487	if (res == FR_OK) {
oks486	0:43cce7b453d0	3488	if (fp->fsize > fp->fptr) {
oks486	0:43cce7b453d0	3489	fp->fsize = fp->fptr; /* Set file size to current R/W point */
oks486	0:43cce7b453d0	3490	fp->flag \|= FA__WRITTEN;
oks486	0:43cce7b453d0	3491	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
oks486	0:43cce7b453d0	3492	res = remove_chain(fp->fs, fp->sclust);
oks486	0:43cce7b453d0	3493	fp->sclust = 0;
oks486	0:43cce7b453d0	3494	} else { /* When truncate a part of the file, remove remaining clusters */
oks486	0:43cce7b453d0	3495	ncl = get_fat(fp->fs, fp->clust);
oks486	0:43cce7b453d0	3496	res = FR_OK;
oks486	0:43cce7b453d0	3497	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
oks486	0:43cce7b453d0	3498	if (ncl == 1) res = FR_INT_ERR;
oks486	0:43cce7b453d0	3499	if (res == FR_OK && ncl < fp->fs->n_fatent) {
oks486	0:43cce7b453d0	3500	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
oks486	0:43cce7b453d0	3501	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
oks486	0:43cce7b453d0	3502	}
oks486	0:43cce7b453d0	3503	}
oks486	0:43cce7b453d0	3504	#if !_FS_TINY
oks486	0:43cce7b453d0	3505	if (res == FR_OK && (fp->flag & FA__DIRTY)) {
oks486	0:43cce7b453d0	3506	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
oks486	0:43cce7b453d0	3507	res = FR_DISK_ERR;
oks486	0:43cce7b453d0	3508	else
oks486	0:43cce7b453d0	3509	fp->flag &= ~FA__DIRTY;
oks486	0:43cce7b453d0	3510	}
oks486	0:43cce7b453d0	3511	#endif
oks486	0:43cce7b453d0	3512	}
oks486	0:43cce7b453d0	3513	if (res != FR_OK) fp->err = (FRESULT)res;
oks486	0:43cce7b453d0	3514	}
oks486	0:43cce7b453d0	3515
oks486	0:43cce7b453d0	3516	LEAVE_FF(fp->fs, res);
oks486	0:43cce7b453d0	3517	}
oks486	0:43cce7b453d0	3518
oks486	0:43cce7b453d0	3519
oks486	0:43cce7b453d0	3520
oks486	0:43cce7b453d0	3521
oks486	0:43cce7b453d0	3522	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3523	/* Delete a File or Directory */
oks486	0:43cce7b453d0	3524	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3525
oks486	0:43cce7b453d0	3526	FRESULT f_unlink (
oks486	0:43cce7b453d0	3527	const TCHAR* path /* Pointer to the file or directory path */
oks486	0:43cce7b453d0	3528	)
oks486	0:43cce7b453d0	3529	{
oks486	0:43cce7b453d0	3530	FRESULT res;
oks486	0:43cce7b453d0	3531	DIR dj, sdj;
oks486	0:43cce7b453d0	3532	BYTE *dir;
oks486	0:43cce7b453d0	3533	DWORD dclst = 0;
oks486	0:43cce7b453d0	3534	DEFINE_NAMEBUF;
oks486	0:43cce7b453d0	3535
oks486	0:43cce7b453d0	3536
oks486	0:43cce7b453d0	3537	/* Get logical drive number */
oks486	0:43cce7b453d0	3538	res = find_volume(&dj.fs, &path, 1);
oks486	0:43cce7b453d0	3539	if (res == FR_OK) {
oks486	0:43cce7b453d0	3540	INIT_BUF(dj);
oks486	0:43cce7b453d0	3541	res = follow_path(&dj, path); /* Follow the file path */
oks486	0:43cce7b453d0	3542	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
oks486	0:43cce7b453d0	3543	res = FR_INVALID_NAME; /* Cannot remove dot entry */
oks486	0:43cce7b453d0	3544	#if _FS_LOCK
oks486	0:43cce7b453d0	3545	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open object */
oks486	0:43cce7b453d0	3546	#endif
oks486	0:43cce7b453d0	3547	if (res == FR_OK) { /* The object is accessible */
oks486	0:43cce7b453d0	3548	dir = dj.dir;
oks486	0:43cce7b453d0	3549	if (!dir) {
oks486	0:43cce7b453d0	3550	res = FR_INVALID_NAME; /* Cannot remove the origin directory */
oks486	0:43cce7b453d0	3551	} else {
oks486	0:43cce7b453d0	3552	if (dir[DIR_Attr] & AM_RDO)
oks486	0:43cce7b453d0	3553	res = FR_DENIED; /* Cannot remove R/O object */
oks486	0:43cce7b453d0	3554	}
oks486	0:43cce7b453d0	3555	if (res == FR_OK) {
oks486	0:43cce7b453d0	3556	dclst = ld_clust(dj.fs, dir);
oks486	0:43cce7b453d0	3557	if (dclst && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-directory ? */
oks486	0:43cce7b453d0	3558	#if _FS_RPATH
oks486	0:43cce7b453d0	3559	if (dclst == dj.fs->cdir) { /* Is it the current directory? */
oks486	0:43cce7b453d0	3560	res = FR_DENIED;
oks486	0:43cce7b453d0	3561	} else
oks486	0:43cce7b453d0	3562	#endif
oks486	0:43cce7b453d0	3563	{
oks486	0:43cce7b453d0	3564	mem_cpy(&sdj, &dj, sizeof (DIR)); /* Open the sub-directory */
oks486	0:43cce7b453d0	3565	sdj.sclust = dclst;
oks486	0:43cce7b453d0	3566	res = dir_sdi(&sdj, 2);
oks486	0:43cce7b453d0	3567	if (res == FR_OK) {
oks486	0:43cce7b453d0	3568	res = dir_read(&sdj, 0); /* Read an item (excluding dot entries) */
oks486	0:43cce7b453d0	3569	if (res == FR_OK) res = FR_DENIED; /* Not empty? (cannot remove) */
oks486	0:43cce7b453d0	3570	if (res == FR_NO_FILE) res = FR_OK; /* Empty? (can remove) */
oks486	0:43cce7b453d0	3571	}
oks486	0:43cce7b453d0	3572	}
oks486	0:43cce7b453d0	3573	}
oks486	0:43cce7b453d0	3574	}
oks486	0:43cce7b453d0	3575	if (res == FR_OK) {
oks486	0:43cce7b453d0	3576	res = dir_remove(&dj); /* Remove the directory entry */
oks486	0:43cce7b453d0	3577	if (res == FR_OK && dclst) /* Remove the cluster chain if exist */
oks486	0:43cce7b453d0	3578	res = remove_chain(dj.fs, dclst);
oks486	0:43cce7b453d0	3579	if (res == FR_OK) res = sync_fs(dj.fs);
oks486	0:43cce7b453d0	3580	}
oks486	0:43cce7b453d0	3581	}
oks486	0:43cce7b453d0	3582	FREE_BUF();
oks486	0:43cce7b453d0	3583	}
oks486	0:43cce7b453d0	3584
oks486	0:43cce7b453d0	3585	LEAVE_FF(dj.fs, res);
oks486	0:43cce7b453d0	3586	}
oks486	0:43cce7b453d0	3587
oks486	0:43cce7b453d0	3588
oks486	0:43cce7b453d0	3589
oks486	0:43cce7b453d0	3590
oks486	0:43cce7b453d0	3591	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3592	/* Create a Directory */
oks486	0:43cce7b453d0	3593	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3594
oks486	0:43cce7b453d0	3595	FRESULT f_mkdir (
oks486	0:43cce7b453d0	3596	const TCHAR* path /* Pointer to the directory path */
oks486	0:43cce7b453d0	3597	)
oks486	0:43cce7b453d0	3598	{
oks486	0:43cce7b453d0	3599	FRESULT res;
oks486	0:43cce7b453d0	3600	DIR dj;
oks486	0:43cce7b453d0	3601	BYTE *dir, n;
oks486	0:43cce7b453d0	3602	DWORD dsc, dcl, pcl, tm = GET_FATTIME();
oks486	0:43cce7b453d0	3603	DEFINE_NAMEBUF;
oks486	0:43cce7b453d0	3604
oks486	0:43cce7b453d0	3605
oks486	0:43cce7b453d0	3606	/* Get logical drive number */
oks486	0:43cce7b453d0	3607	res = find_volume(&dj.fs, &path, 1);
oks486	0:43cce7b453d0	3608	if (res == FR_OK) {
oks486	0:43cce7b453d0	3609	INIT_BUF(dj);
oks486	0:43cce7b453d0	3610	res = follow_path(&dj, path); /* Follow the file path */
oks486	0:43cce7b453d0	3611	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
oks486	0:43cce7b453d0	3612	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NSFLAG] & NS_DOT))
oks486	0:43cce7b453d0	3613	res = FR_INVALID_NAME;
oks486	0:43cce7b453d0	3614	if (res == FR_NO_FILE) { /* Can create a new directory */
oks486	0:43cce7b453d0	3615	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
oks486	0:43cce7b453d0	3616	res = FR_OK;
oks486	0:43cce7b453d0	3617	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
oks486	0:43cce7b453d0	3618	if (dcl == 1) res = FR_INT_ERR;
oks486	0:43cce7b453d0	3619	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
oks486	0:43cce7b453d0	3620	if (res == FR_OK) /* Flush FAT */
oks486	0:43cce7b453d0	3621	res = sync_window(dj.fs);
oks486	0:43cce7b453d0	3622	if (res == FR_OK) { /* Initialize the new directory table */
oks486	0:43cce7b453d0	3623	dsc = clust2sect(dj.fs, dcl);
oks486	0:43cce7b453d0	3624	dir = dj.fs->win;
oks486	0:43cce7b453d0	3625	mem_set(dir, 0, SS(dj.fs));
oks486	0:43cce7b453d0	3626	mem_set(dir + DIR_Name, ' ', 11); /* Create "." entry */
oks486	0:43cce7b453d0	3627	dir[DIR_Name] = '.';
oks486	0:43cce7b453d0	3628	dir[DIR_Attr] = AM_DIR;
oks486	0:43cce7b453d0	3629	ST_DWORD(dir + DIR_WrtTime, tm);
oks486	0:43cce7b453d0	3630	st_clust(dir, dcl);
oks486	0:43cce7b453d0	3631	mem_cpy(dir + SZ_DIRE, dir, SZ_DIRE); /* Create ".." entry */
oks486	0:43cce7b453d0	3632	dir[SZ_DIRE + 1] = '.'; pcl = dj.sclust;
oks486	0:43cce7b453d0	3633	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
oks486	0:43cce7b453d0	3634	pcl = 0;
oks486	0:43cce7b453d0	3635	st_clust(dir + SZ_DIRE, pcl);
oks486	0:43cce7b453d0	3636	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
oks486	0:43cce7b453d0	3637	dj.fs->winsect = dsc++;
oks486	0:43cce7b453d0	3638	dj.fs->wflag = 1;
oks486	0:43cce7b453d0	3639	res = sync_window(dj.fs);
oks486	0:43cce7b453d0	3640	if (res != FR_OK) break;
oks486	0:43cce7b453d0	3641	mem_set(dir, 0, SS(dj.fs));
oks486	0:43cce7b453d0	3642	}
oks486	0:43cce7b453d0	3643	}
oks486	0:43cce7b453d0	3644	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
oks486	0:43cce7b453d0	3645	if (res != FR_OK) {
oks486	0:43cce7b453d0	3646	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
oks486	0:43cce7b453d0	3647	} else {
oks486	0:43cce7b453d0	3648	dir = dj.dir;
oks486	0:43cce7b453d0	3649	dir[DIR_Attr] = AM_DIR; /* Attribute */
oks486	0:43cce7b453d0	3650	ST_DWORD(dir + DIR_WrtTime, tm); /* Created time */
oks486	0:43cce7b453d0	3651	st_clust(dir, dcl); /* Table start cluster */
oks486	0:43cce7b453d0	3652	dj.fs->wflag = 1;
oks486	0:43cce7b453d0	3653	res = sync_fs(dj.fs);
oks486	0:43cce7b453d0	3654	}
oks486	0:43cce7b453d0	3655	}
oks486	0:43cce7b453d0	3656	FREE_BUF();
oks486	0:43cce7b453d0	3657	}
oks486	0:43cce7b453d0	3658
oks486	0:43cce7b453d0	3659	LEAVE_FF(dj.fs, res);
oks486	0:43cce7b453d0	3660	}
oks486	0:43cce7b453d0	3661
oks486	0:43cce7b453d0	3662
oks486	0:43cce7b453d0	3663
oks486	0:43cce7b453d0	3664
oks486	0:43cce7b453d0	3665	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3666	/* Change Attribute */
oks486	0:43cce7b453d0	3667	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3668
oks486	0:43cce7b453d0	3669	FRESULT f_chmod (
oks486	0:43cce7b453d0	3670	const TCHAR* path, /* Pointer to the file path */
oks486	0:43cce7b453d0	3671	BYTE attr, /* Attribute bits */
oks486	0:43cce7b453d0	3672	BYTE mask /* Attribute mask to change */
oks486	0:43cce7b453d0	3673	)
oks486	0:43cce7b453d0	3674	{
oks486	0:43cce7b453d0	3675	FRESULT res;
oks486	0:43cce7b453d0	3676	DIR dj;
oks486	0:43cce7b453d0	3677	BYTE *dir;
oks486	0:43cce7b453d0	3678	DEFINE_NAMEBUF;
oks486	0:43cce7b453d0	3679
oks486	0:43cce7b453d0	3680
oks486	0:43cce7b453d0	3681	res = find_volume(&dj.fs, &path, 1); /* Get logical drive number */
oks486	0:43cce7b453d0	3682	if (res == FR_OK) {
oks486	0:43cce7b453d0	3683	INIT_BUF(dj);
oks486	0:43cce7b453d0	3684	res = follow_path(&dj, path); /* Follow the file path */
oks486	0:43cce7b453d0	3685	FREE_BUF();
oks486	0:43cce7b453d0	3686	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
oks486	0:43cce7b453d0	3687	res = FR_INVALID_NAME;
oks486	0:43cce7b453d0	3688	if (res == FR_OK) {
oks486	0:43cce7b453d0	3689	dir = dj.dir;
oks486	0:43cce7b453d0	3690	if (!dir) { /* Is it a root directory? */
oks486	0:43cce7b453d0	3691	res = FR_INVALID_NAME;
oks486	0:43cce7b453d0	3692	} else { /* File or sub directory */
oks486	0:43cce7b453d0	3693	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
oks486	0:43cce7b453d0	3694	dir[DIR_Attr] = (attr & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
oks486	0:43cce7b453d0	3695	dj.fs->wflag = 1;
oks486	0:43cce7b453d0	3696	res = sync_fs(dj.fs);
oks486	0:43cce7b453d0	3697	}
oks486	0:43cce7b453d0	3698	}
oks486	0:43cce7b453d0	3699	}
oks486	0:43cce7b453d0	3700
oks486	0:43cce7b453d0	3701	LEAVE_FF(dj.fs, res);
oks486	0:43cce7b453d0	3702	}
oks486	0:43cce7b453d0	3703
oks486	0:43cce7b453d0	3704
oks486	0:43cce7b453d0	3705
oks486	0:43cce7b453d0	3706
oks486	0:43cce7b453d0	3707	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3708	/* Rename File/Directory */
oks486	0:43cce7b453d0	3709	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3710
oks486	0:43cce7b453d0	3711	FRESULT f_rename (
oks486	0:43cce7b453d0	3712	const TCHAR* path_old, /* Pointer to the object to be renamed */
oks486	0:43cce7b453d0	3713	const TCHAR* path_new /* Pointer to the new name */
oks486	0:43cce7b453d0	3714	)
oks486	0:43cce7b453d0	3715	{
oks486	0:43cce7b453d0	3716	FRESULT res;
oks486	0:43cce7b453d0	3717	DIR djo, djn;
oks486	0:43cce7b453d0	3718	BYTE buf[21], *dir;
oks486	0:43cce7b453d0	3719	DWORD dw;
oks486	0:43cce7b453d0	3720	DEFINE_NAMEBUF;
oks486	0:43cce7b453d0	3721
oks486	0:43cce7b453d0	3722
oks486	0:43cce7b453d0	3723	/* Get logical drive number of the source object */
oks486	0:43cce7b453d0	3724	res = find_volume(&djo.fs, &path_old, 1);
oks486	0:43cce7b453d0	3725	if (res == FR_OK) {
oks486	0:43cce7b453d0	3726	djn.fs = djo.fs;
oks486	0:43cce7b453d0	3727	INIT_BUF(djo);
oks486	0:43cce7b453d0	3728	res = follow_path(&djo, path_old); /* Check old object */
oks486	0:43cce7b453d0	3729	if (_FS_RPATH && res == FR_OK && (djo.fn[NSFLAG] & NS_DOT))
oks486	0:43cce7b453d0	3730	res = FR_INVALID_NAME;
oks486	0:43cce7b453d0	3731	#if _FS_LOCK
oks486	0:43cce7b453d0	3732	if (res == FR_OK) res = chk_lock(&djo, 2);
oks486	0:43cce7b453d0	3733	#endif
oks486	0:43cce7b453d0	3734	if (res == FR_OK) { /* Old object is found */
oks486	0:43cce7b453d0	3735	if (!djo.dir) { /* Is root dir? */
oks486	0:43cce7b453d0	3736	res = FR_NO_FILE;
oks486	0:43cce7b453d0	3737	} else {
oks486	0:43cce7b453d0	3738	mem_cpy(buf, djo.dir + DIR_Attr, 21); /* Save information about object except name */
oks486	0:43cce7b453d0	3739	mem_cpy(&djn, &djo, sizeof (DIR)); /* Duplicate the directory object */
oks486	0:43cce7b453d0	3740	if (get_ldnumber(&path_new) >= 0) /* Snip drive number off and ignore it */
oks486	0:43cce7b453d0	3741	res = follow_path(&djn, path_new); /* and make sure if new object name is not conflicting */
oks486	0:43cce7b453d0	3742	else
oks486	0:43cce7b453d0	3743	res = FR_INVALID_DRIVE;
oks486	0:43cce7b453d0	3744	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
oks486	0:43cce7b453d0	3745	if (res == FR_NO_FILE) { /* It is a valid path and no name collision */
oks486	0:43cce7b453d0	3746	res = dir_register(&djn); /* Register the new entry */
oks486	0:43cce7b453d0	3747	if (res == FR_OK) {
oks486	0:43cce7b453d0	3748	/* Start of critical section where any interruption can cause a cross-link */
oks486	0:43cce7b453d0	3749	dir = djn.dir; /* Copy information about object except name */
oks486	0:43cce7b453d0	3750	mem_cpy(dir + 13, buf + 2, 19);
oks486	0:43cce7b453d0	3751	dir[DIR_Attr] = buf[0] \| AM_ARC;
oks486	0:43cce7b453d0	3752	djo.fs->wflag = 1;
oks486	0:43cce7b453d0	3753	if ((dir[DIR_Attr] & AM_DIR) && djo.sclust != djn.sclust) { /* Update .. entry in the sub-directory if needed */
oks486	0:43cce7b453d0	3754	dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
oks486	0:43cce7b453d0	3755	if (!dw) {
oks486	0:43cce7b453d0	3756	res = FR_INT_ERR;
oks486	0:43cce7b453d0	3757	} else {
oks486	0:43cce7b453d0	3758	res = move_window(djo.fs, dw);
oks486	0:43cce7b453d0	3759	dir = djo.fs->win + SZ_DIRE * 1; /* Ptr to .. entry */
oks486	0:43cce7b453d0	3760	if (res == FR_OK && dir[1] == '.') {
oks486	0:43cce7b453d0	3761	st_clust(dir, djn.sclust);
oks486	0:43cce7b453d0	3762	djo.fs->wflag = 1;
oks486	0:43cce7b453d0	3763	}
oks486	0:43cce7b453d0	3764	}
oks486	0:43cce7b453d0	3765	}
oks486	0:43cce7b453d0	3766	if (res == FR_OK) {
oks486	0:43cce7b453d0	3767	res = dir_remove(&djo); /* Remove old entry */
oks486	0:43cce7b453d0	3768	if (res == FR_OK)
oks486	0:43cce7b453d0	3769	res = sync_fs(djo.fs);
oks486	0:43cce7b453d0	3770	}
oks486	0:43cce7b453d0	3771	/* End of critical section */
oks486	0:43cce7b453d0	3772	}
oks486	0:43cce7b453d0	3773	}
oks486	0:43cce7b453d0	3774	}
oks486	0:43cce7b453d0	3775	}
oks486	0:43cce7b453d0	3776	FREE_BUF();
oks486	0:43cce7b453d0	3777	}
oks486	0:43cce7b453d0	3778
oks486	0:43cce7b453d0	3779	LEAVE_FF(djo.fs, res);
oks486	0:43cce7b453d0	3780	}
oks486	0:43cce7b453d0	3781
oks486	0:43cce7b453d0	3782
oks486	0:43cce7b453d0	3783
oks486	0:43cce7b453d0	3784
oks486	0:43cce7b453d0	3785	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3786	/* Change Timestamp */
oks486	0:43cce7b453d0	3787	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3788
oks486	0:43cce7b453d0	3789	FRESULT f_utime (
oks486	0:43cce7b453d0	3790	const TCHAR* path, /* Pointer to the file/directory name */
oks486	0:43cce7b453d0	3791	const FILINFO* fno /* Pointer to the time stamp to be set */
oks486	0:43cce7b453d0	3792	)
oks486	0:43cce7b453d0	3793	{
oks486	0:43cce7b453d0	3794	FRESULT res;
oks486	0:43cce7b453d0	3795	DIR dj;
oks486	0:43cce7b453d0	3796	BYTE *dir;
oks486	0:43cce7b453d0	3797	DEFINE_NAMEBUF;
oks486	0:43cce7b453d0	3798
oks486	0:43cce7b453d0	3799
oks486	0:43cce7b453d0	3800	/* Get logical drive number */
oks486	0:43cce7b453d0	3801	res = find_volume(&dj.fs, &path, 1);
oks486	0:43cce7b453d0	3802	if (res == FR_OK) {
oks486	0:43cce7b453d0	3803	INIT_BUF(dj);
oks486	0:43cce7b453d0	3804	res = follow_path(&dj, path); /* Follow the file path */
oks486	0:43cce7b453d0	3805	FREE_BUF();
oks486	0:43cce7b453d0	3806	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
oks486	0:43cce7b453d0	3807	res = FR_INVALID_NAME;
oks486	0:43cce7b453d0	3808	if (res == FR_OK) {
oks486	0:43cce7b453d0	3809	dir = dj.dir;
oks486	0:43cce7b453d0	3810	if (!dir) { /* Root directory */
oks486	0:43cce7b453d0	3811	res = FR_INVALID_NAME;
oks486	0:43cce7b453d0	3812	} else { /* File or sub-directory */
oks486	0:43cce7b453d0	3813	ST_WORD(dir + DIR_WrtTime, fno->ftime);
oks486	0:43cce7b453d0	3814	ST_WORD(dir + DIR_WrtDate, fno->fdate);
oks486	0:43cce7b453d0	3815	dj.fs->wflag = 1;
oks486	0:43cce7b453d0	3816	res = sync_fs(dj.fs);
oks486	0:43cce7b453d0	3817	}
oks486	0:43cce7b453d0	3818	}
oks486	0:43cce7b453d0	3819	}
oks486	0:43cce7b453d0	3820
oks486	0:43cce7b453d0	3821	LEAVE_FF(dj.fs, res);
oks486	0:43cce7b453d0	3822	}
oks486	0:43cce7b453d0	3823
oks486	0:43cce7b453d0	3824	#endif /* !_FS_READONLY */
oks486	0:43cce7b453d0	3825	#endif /* _FS_MINIMIZE == 0 */
oks486	0:43cce7b453d0	3826	#endif /* _FS_MINIMIZE <= 1 */
oks486	0:43cce7b453d0	3827	#endif /* _FS_MINIMIZE <= 2 */
oks486	0:43cce7b453d0	3828
oks486	0:43cce7b453d0	3829
oks486	0:43cce7b453d0	3830
oks486	0:43cce7b453d0	3831
oks486	0:43cce7b453d0	3832	#if _USE_LABEL
oks486	0:43cce7b453d0	3833	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3834	/* Get volume label */
oks486	0:43cce7b453d0	3835	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3836
oks486	0:43cce7b453d0	3837	FRESULT f_getlabel (
oks486	0:43cce7b453d0	3838	const TCHAR* path, /* Path name of the logical drive number */
oks486	0:43cce7b453d0	3839	TCHAR* label, /* Pointer to a buffer to return the volume label */
oks486	0:43cce7b453d0	3840	DWORD* vsn /* Pointer to a variable to return the volume serial number */
oks486	0:43cce7b453d0	3841	)
oks486	0:43cce7b453d0	3842	{
oks486	0:43cce7b453d0	3843	FRESULT res;
oks486	0:43cce7b453d0	3844	DIR dj;
oks486	0:43cce7b453d0	3845	UINT i, j;
oks486	0:43cce7b453d0	3846	#if _USE_LFN && _LFN_UNICODE
oks486	0:43cce7b453d0	3847	WCHAR w;
oks486	0:43cce7b453d0	3848	#endif
oks486	0:43cce7b453d0	3849
oks486	0:43cce7b453d0	3850
oks486	0:43cce7b453d0	3851	/* Get logical drive number */
oks486	0:43cce7b453d0	3852	res = find_volume(&dj.fs, &path, 0);
oks486	0:43cce7b453d0	3853
oks486	0:43cce7b453d0	3854	/* Get volume label */
oks486	0:43cce7b453d0	3855	if (res == FR_OK && label) {
oks486	0:43cce7b453d0	3856	dj.sclust = 0; /* Open root directory */
oks486	0:43cce7b453d0	3857	res = dir_sdi(&dj, 0);
oks486	0:43cce7b453d0	3858	if (res == FR_OK) {
oks486	0:43cce7b453d0	3859	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
oks486	0:43cce7b453d0	3860	if (res == FR_OK) { /* A volume label is exist */
oks486	0:43cce7b453d0	3861	#if _USE_LFN && _LFN_UNICODE
oks486	0:43cce7b453d0	3862	i = j = 0;
oks486	0:43cce7b453d0	3863	do {
oks486	0:43cce7b453d0	3864	w = (i < 11) ? dj.dir[i++] : ' ';
oks486	0:43cce7b453d0	3865	if (IsDBCS1(w) && i < 11 && IsDBCS2(dj.dir[i]))
oks486	0:43cce7b453d0	3866	w = w << 8 \| dj.dir[i++];
oks486	0:43cce7b453d0	3867	label[j++] = ff_convert(w, 1); /* OEM -> Unicode */
oks486	0:43cce7b453d0	3868	} while (j < 11);
oks486	0:43cce7b453d0	3869	#else
oks486	0:43cce7b453d0	3870	mem_cpy(label, dj.dir, 11);
oks486	0:43cce7b453d0	3871	#endif
oks486	0:43cce7b453d0	3872	j = 11;
oks486	0:43cce7b453d0	3873	do {
oks486	0:43cce7b453d0	3874	label[j] = 0;
oks486	0:43cce7b453d0	3875	if (!j) break;
oks486	0:43cce7b453d0	3876	} while (label[--j] == ' ');
oks486	0:43cce7b453d0	3877	}
oks486	0:43cce7b453d0	3878	if (res == FR_NO_FILE) { /* No label, return nul string */
oks486	0:43cce7b453d0	3879	label[0] = 0;
oks486	0:43cce7b453d0	3880	res = FR_OK;
oks486	0:43cce7b453d0	3881	}
oks486	0:43cce7b453d0	3882	}
oks486	0:43cce7b453d0	3883	}
oks486	0:43cce7b453d0	3884
oks486	0:43cce7b453d0	3885	/* Get volume serial number */
oks486	0:43cce7b453d0	3886	if (res == FR_OK && vsn) {
oks486	0:43cce7b453d0	3887	res = move_window(dj.fs, dj.fs->volbase);
oks486	0:43cce7b453d0	3888	if (res == FR_OK) {
oks486	0:43cce7b453d0	3889	i = dj.fs->fs_type == FS_FAT32 ? BS_VolID32 : BS_VolID;
oks486	0:43cce7b453d0	3890	*vsn = LD_DWORD(&dj.fs->win[i]);
oks486	0:43cce7b453d0	3891	}
oks486	0:43cce7b453d0	3892	}
oks486	0:43cce7b453d0	3893
oks486	0:43cce7b453d0	3894	LEAVE_FF(dj.fs, res);
oks486	0:43cce7b453d0	3895	}
oks486	0:43cce7b453d0	3896
oks486	0:43cce7b453d0	3897
oks486	0:43cce7b453d0	3898
oks486	0:43cce7b453d0	3899	#if !_FS_READONLY
oks486	0:43cce7b453d0	3900	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3901	/* Set volume label */
oks486	0:43cce7b453d0	3902	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3903
oks486	0:43cce7b453d0	3904	FRESULT f_setlabel (
oks486	0:43cce7b453d0	3905	const TCHAR* label /* Pointer to the volume label to set */
oks486	0:43cce7b453d0	3906	)
oks486	0:43cce7b453d0	3907	{
oks486	0:43cce7b453d0	3908	FRESULT res;
oks486	0:43cce7b453d0	3909	DIR dj;
oks486	0:43cce7b453d0	3910	BYTE vn[11];
oks486	0:43cce7b453d0	3911	UINT i, j, sl;
oks486	0:43cce7b453d0	3912	WCHAR w;
oks486	0:43cce7b453d0	3913	DWORD tm;
oks486	0:43cce7b453d0	3914
oks486	0:43cce7b453d0	3915
oks486	0:43cce7b453d0	3916	/* Get logical drive number */
oks486	0:43cce7b453d0	3917	res = find_volume(&dj.fs, &label, 1);
oks486	0:43cce7b453d0	3918	if (res) LEAVE_FF(dj.fs, res);
oks486	0:43cce7b453d0	3919
oks486	0:43cce7b453d0	3920	/* Create a volume label in directory form */
oks486	0:43cce7b453d0	3921	vn[0] = 0;
oks486	0:43cce7b453d0	3922	for (sl = 0; label[sl]; sl++) ; /* Get name length */
oks486	0:43cce7b453d0	3923	for ( ; sl && label[sl - 1] == ' '; sl--) ; /* Remove trailing spaces */
oks486	0:43cce7b453d0	3924	if (sl) { /* Create volume label in directory form */
oks486	0:43cce7b453d0	3925	i = j = 0;
oks486	0:43cce7b453d0	3926	do {
oks486	0:43cce7b453d0	3927	#if _USE_LFN && _LFN_UNICODE
oks486	0:43cce7b453d0	3928	w = ff_convert(ff_wtoupper(label[i++]), 0);
oks486	0:43cce7b453d0	3929	#else
oks486	0:43cce7b453d0	3930	w = (BYTE)label[i++];
oks486	0:43cce7b453d0	3931	if (IsDBCS1(w))
oks486	0:43cce7b453d0	3932	w = (j < 10 && i < sl && IsDBCS2(label[i])) ? w << 8 \| (BYTE)label[i++] : 0;
oks486	0:43cce7b453d0	3933	#if _USE_LFN
oks486	0:43cce7b453d0	3934	w = ff_convert(ff_wtoupper(ff_convert(w, 1)), 0);
oks486	0:43cce7b453d0	3935	#else
oks486	0:43cce7b453d0	3936	if (IsLower(w)) w -= 0x20; /* To upper ASCII characters */
oks486	0:43cce7b453d0	3937	#ifdef _EXCVT
oks486	0:43cce7b453d0	3938	if (w >= 0x80) w = ExCvt[w - 0x80]; /* To upper extended characters (SBCS cfg) */
oks486	0:43cce7b453d0	3939	#else
oks486	0:43cce7b453d0	3940	if (!_DF1S && w >= 0x80) w = 0; /* Reject extended characters (ASCII cfg) */
oks486	0:43cce7b453d0	3941	#endif
oks486	0:43cce7b453d0	3942	#endif
oks486	0:43cce7b453d0	3943	#endif
oks486	0:43cce7b453d0	3944	if (!w \|\| chk_chr("\"+,.:;<=>\?[]\|\x7F", w) \|\| j >= (UINT)((w >= 0x100) ? 10 : 11)) / Reject invalid characters for volume label */
oks486	0:43cce7b453d0	3945	LEAVE_FF(dj.fs, FR_INVALID_NAME);
oks486	0:43cce7b453d0	3946	if (w >= 0x100) vn[j++] = (BYTE)(w >> 8);
oks486	0:43cce7b453d0	3947	vn[j++] = (BYTE)w;
oks486	0:43cce7b453d0	3948	} while (i < sl);
oks486	0:43cce7b453d0	3949	while (j < 11) vn[j++] = ' '; /* Fill remaining name field */
oks486	0:43cce7b453d0	3950	if (vn[0] == DDEM) LEAVE_FF(dj.fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */
oks486	0:43cce7b453d0	3951	}
oks486	0:43cce7b453d0	3952
oks486	0:43cce7b453d0	3953	/* Set volume label */
oks486	0:43cce7b453d0	3954	dj.sclust = 0; /* Open root directory */
oks486	0:43cce7b453d0	3955	res = dir_sdi(&dj, 0);
oks486	0:43cce7b453d0	3956	if (res == FR_OK) {
oks486	0:43cce7b453d0	3957	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
oks486	0:43cce7b453d0	3958	if (res == FR_OK) { /* A volume label is found */
oks486	0:43cce7b453d0	3959	if (vn[0]) {
oks486	0:43cce7b453d0	3960	mem_cpy(dj.dir, vn, 11); /* Change the volume label name */
oks486	0:43cce7b453d0	3961	tm = GET_FATTIME();
oks486	0:43cce7b453d0	3962	ST_DWORD(dj.dir + DIR_WrtTime, tm);
oks486	0:43cce7b453d0	3963	} else {
oks486	0:43cce7b453d0	3964	dj.dir[0] = DDEM; /* Remove the volume label */
oks486	0:43cce7b453d0	3965	}
oks486	0:43cce7b453d0	3966	dj.fs->wflag = 1;
oks486	0:43cce7b453d0	3967	res = sync_fs(dj.fs);
oks486	0:43cce7b453d0	3968	} else { /* No volume label is found or error */
oks486	0:43cce7b453d0	3969	if (res == FR_NO_FILE) {
oks486	0:43cce7b453d0	3970	res = FR_OK;
oks486	0:43cce7b453d0	3971	if (vn[0]) { /* Create volume label as new */
oks486	0:43cce7b453d0	3972	res = dir_alloc(&dj, 1); /* Allocate an entry for volume label */
oks486	0:43cce7b453d0	3973	if (res == FR_OK) {
oks486	0:43cce7b453d0	3974	mem_set(dj.dir, 0, SZ_DIRE); /* Set volume label */
oks486	0:43cce7b453d0	3975	mem_cpy(dj.dir, vn, 11);
oks486	0:43cce7b453d0	3976	dj.dir[DIR_Attr] = AM_VOL;
oks486	0:43cce7b453d0	3977	tm = GET_FATTIME();
oks486	0:43cce7b453d0	3978	ST_DWORD(dj.dir + DIR_WrtTime, tm);
oks486	0:43cce7b453d0	3979	dj.fs->wflag = 1;
oks486	0:43cce7b453d0	3980	res = sync_fs(dj.fs);
oks486	0:43cce7b453d0	3981	}
oks486	0:43cce7b453d0	3982	}
oks486	0:43cce7b453d0	3983	}
oks486	0:43cce7b453d0	3984	}
oks486	0:43cce7b453d0	3985	}
oks486	0:43cce7b453d0	3986
oks486	0:43cce7b453d0	3987	LEAVE_FF(dj.fs, res);
oks486	0:43cce7b453d0	3988	}
oks486	0:43cce7b453d0	3989
oks486	0:43cce7b453d0	3990	#endif /* !_FS_READONLY */
oks486	0:43cce7b453d0	3991	#endif /* _USE_LABEL */
oks486	0:43cce7b453d0	3992
oks486	0:43cce7b453d0	3993
oks486	0:43cce7b453d0	3994
oks486	0:43cce7b453d0	3995	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3996	/* Forward data to the stream directly (available on only tiny cfg) */
oks486	0:43cce7b453d0	3997	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	3998	#if _USE_FORWARD && _FS_TINY
oks486	0:43cce7b453d0	3999
oks486	0:43cce7b453d0	4000	FRESULT f_forward (
oks486	0:43cce7b453d0	4001	FIL* fp, /* Pointer to the file object */
oks486	0:43cce7b453d0	4002	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
oks486	0:43cce7b453d0	4003	UINT btf, /* Number of bytes to forward */
oks486	0:43cce7b453d0	4004	UINT* bf /* Pointer to number of bytes forwarded */
oks486	0:43cce7b453d0	4005	)
oks486	0:43cce7b453d0	4006	{
oks486	0:43cce7b453d0	4007	FRESULT res;
oks486	0:43cce7b453d0	4008	DWORD remain, clst, sect;
oks486	0:43cce7b453d0	4009	UINT rcnt;
oks486	0:43cce7b453d0	4010	BYTE csect;
oks486	0:43cce7b453d0	4011
oks486	0:43cce7b453d0	4012
oks486	0:43cce7b453d0	4013	bf = 0; / Clear transfer byte counter */
oks486	0:43cce7b453d0	4014
oks486	0:43cce7b453d0	4015	res = validate(fp); /* Check validity of the object */
oks486	0:43cce7b453d0	4016	if (res != FR_OK) LEAVE_FF(fp->fs, res);
oks486	0:43cce7b453d0	4017	if (fp->err) /* Check error */
oks486	0:43cce7b453d0	4018	LEAVE_FF(fp->fs, (FRESULT)fp->err);
oks486	0:43cce7b453d0	4019	if (!(fp->flag & FA_READ)) /* Check access mode */
oks486	0:43cce7b453d0	4020	LEAVE_FF(fp->fs, FR_DENIED);
oks486	0:43cce7b453d0	4021
oks486	0:43cce7b453d0	4022	remain = fp->fsize - fp->fptr;
oks486	0:43cce7b453d0	4023	if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */
oks486	0:43cce7b453d0	4024
oks486	0:43cce7b453d0	4025	for ( ; btf && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
oks486	0:43cce7b453d0	4026	fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {
oks486	0:43cce7b453d0	4027	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
oks486	0:43cce7b453d0	4028	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
oks486	0:43cce7b453d0	4029	if (!csect) { /* On the cluster boundary? */
oks486	0:43cce7b453d0	4030	clst = (fp->fptr == 0) ? /* On the top of the file? */
oks486	0:43cce7b453d0	4031	fp->sclust : get_fat(fp->fs, fp->clust);
oks486	0:43cce7b453d0	4032	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
oks486	0:43cce7b453d0	4033	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	4034	fp->clust = clst; /* Update current cluster */
oks486	0:43cce7b453d0	4035	}
oks486	0:43cce7b453d0	4036	}
oks486	0:43cce7b453d0	4037	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
oks486	0:43cce7b453d0	4038	if (!sect) ABORT(fp->fs, FR_INT_ERR);
oks486	0:43cce7b453d0	4039	sect += csect;
oks486	0:43cce7b453d0	4040	if (move_window(fp->fs, sect) != FR_OK) /* Move sector window */
oks486	0:43cce7b453d0	4041	ABORT(fp->fs, FR_DISK_ERR);
oks486	0:43cce7b453d0	4042	fp->dsect = sect;
oks486	0:43cce7b453d0	4043	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
oks486	0:43cce7b453d0	4044	if (rcnt > btf) rcnt = btf;
oks486	0:43cce7b453d0	4045	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
oks486	0:43cce7b453d0	4046	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
oks486	0:43cce7b453d0	4047	}
oks486	0:43cce7b453d0	4048
oks486	0:43cce7b453d0	4049	LEAVE_FF(fp->fs, FR_OK);
oks486	0:43cce7b453d0	4050	}
oks486	0:43cce7b453d0	4051	#endif /* _USE_FORWARD */
oks486	0:43cce7b453d0	4052
oks486	0:43cce7b453d0	4053
oks486	0:43cce7b453d0	4054
oks486	0:43cce7b453d0	4055	#if _USE_MKFS && !_FS_READONLY
oks486	0:43cce7b453d0	4056	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	4057	/* Create file system on the logical drive */
oks486	0:43cce7b453d0	4058	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	4059	#define N_ROOTDIR 512 /* Number of root directory entries for FAT12/16 */
oks486	0:43cce7b453d0	4060	#define N_FATS 1 /* Number of FATs (1 or 2) */
oks486	0:43cce7b453d0	4061
oks486	0:43cce7b453d0	4062
oks486	0:43cce7b453d0	4063	FRESULT f_mkfs (
oks486	0:43cce7b453d0	4064	const TCHAR* path, /* Logical drive number */
oks486	0:43cce7b453d0	4065	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
oks486	0:43cce7b453d0	4066	UINT au /* Size of allocation unit in unit of byte or sector */
oks486	0:43cce7b453d0	4067	)
oks486	0:43cce7b453d0	4068	{
oks486	0:43cce7b453d0	4069	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
oks486	0:43cce7b453d0	4070	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
oks486	0:43cce7b453d0	4071	int vol;
oks486	0:43cce7b453d0	4072	BYTE fmt, md, sys, *tbl, pdrv, part;
oks486	0:43cce7b453d0	4073	DWORD n_clst, vs, n, wsect;
oks486	0:43cce7b453d0	4074	UINT i;
oks486	0:43cce7b453d0	4075	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
oks486	0:43cce7b453d0	4076	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
oks486	0:43cce7b453d0	4077	FATFS *fs;
oks486	0:43cce7b453d0	4078	DSTATUS stat;
oks486	0:43cce7b453d0	4079	#if _USE_TRIM
oks486	0:43cce7b453d0	4080	DWORD eb[2];
oks486	0:43cce7b453d0	4081	#endif
oks486	0:43cce7b453d0	4082
oks486	0:43cce7b453d0	4083
oks486	0:43cce7b453d0	4084	/* Check mounted drive and clear work area */
oks486	0:43cce7b453d0	4085	if (sfd > 1) return FR_INVALID_PARAMETER;
oks486	0:43cce7b453d0	4086	vol = get_ldnumber(&path);
oks486	0:43cce7b453d0	4087	if (vol < 0) return FR_INVALID_DRIVE;
oks486	0:43cce7b453d0	4088	fs = FatFs[vol];
oks486	0:43cce7b453d0	4089	if (!fs) return FR_NOT_ENABLED;
oks486	0:43cce7b453d0	4090	fs->fs_type = 0;
oks486	0:43cce7b453d0	4091	pdrv = LD2PD(vol); /* Physical drive */
oks486	0:43cce7b453d0	4092	part = LD2PT(vol); /* Partition (0:auto detect, 1-4:get from partition table)*/
oks486	0:43cce7b453d0	4093
oks486	0:43cce7b453d0	4094	/* Get disk statics */
oks486	0:43cce7b453d0	4095	stat = disk_initialize(pdrv);
oks486	0:43cce7b453d0	4096	if (stat & STA_NOINIT) return FR_NOT_READY;
oks486	0:43cce7b453d0	4097	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
oks486	0:43cce7b453d0	4098	#if _MAX_SS != _MIN_SS /* Get disk sector size */
oks486	0:43cce7b453d0	4099	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS \|\| SS(fs) < _MIN_SS)
oks486	0:43cce7b453d0	4100	return FR_DISK_ERR;
oks486	0:43cce7b453d0	4101	#endif
oks486	0:43cce7b453d0	4102	if (_MULTI_PARTITION && part) {
oks486	0:43cce7b453d0	4103	/* Get partition information from partition table in the MBR */
oks486	0:43cce7b453d0	4104	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
oks486	0:43cce7b453d0	4105	if (LD_WORD(fs->win + BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
oks486	0:43cce7b453d0	4106	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
oks486	0:43cce7b453d0	4107	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
oks486	0:43cce7b453d0	4108	b_vol = LD_DWORD(tbl + 8); /* Volume start sector */
oks486	0:43cce7b453d0	4109	n_vol = LD_DWORD(tbl + 12); /* Volume size */
oks486	0:43cce7b453d0	4110	} else {
oks486	0:43cce7b453d0	4111	/* Create a partition in this function */
oks486	0:43cce7b453d0	4112	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
oks486	0:43cce7b453d0	4113	return FR_DISK_ERR;
oks486	0:43cce7b453d0	4114	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
oks486	0:43cce7b453d0	4115	n_vol -= b_vol; /* Volume size */
oks486	0:43cce7b453d0	4116	}
oks486	0:43cce7b453d0	4117
oks486	0:43cce7b453d0	4118	if (au & (au - 1)) au = 0;
oks486	0:43cce7b453d0	4119	if (!au) { /* AU auto selection */
oks486	0:43cce7b453d0	4120	vs = n_vol / (2000 / (SS(fs) / 512));
oks486	0:43cce7b453d0	4121	for (i = 0; vs < vst[i]; i++) ;
oks486	0:43cce7b453d0	4122	au = cst[i];
oks486	0:43cce7b453d0	4123	}
oks486	0:43cce7b453d0	4124	if (au >= _MIN_SS) au /= SS(fs); /* Number of sectors per cluster */
oks486	0:43cce7b453d0	4125	if (!au) au = 1;
oks486	0:43cce7b453d0	4126	if (au > 128) au = 128;
oks486	0:43cce7b453d0	4127
oks486	0:43cce7b453d0	4128	/* Pre-compute number of clusters and FAT sub-type */
oks486	0:43cce7b453d0	4129	n_clst = n_vol / au;
oks486	0:43cce7b453d0	4130	fmt = FS_FAT12;
oks486	0:43cce7b453d0	4131	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
oks486	0:43cce7b453d0	4132	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
oks486	0:43cce7b453d0	4133
oks486	0:43cce7b453d0	4134	/* Determine offset and size of FAT structure */
oks486	0:43cce7b453d0	4135	if (fmt == FS_FAT32) {
oks486	0:43cce7b453d0	4136	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
oks486	0:43cce7b453d0	4137	n_rsv = 32;
oks486	0:43cce7b453d0	4138	n_dir = 0;
oks486	0:43cce7b453d0	4139	} else {
oks486	0:43cce7b453d0	4140	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
oks486	0:43cce7b453d0	4141	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
oks486	0:43cce7b453d0	4142	n_rsv = 1;
oks486	0:43cce7b453d0	4143	n_dir = (DWORD)N_ROOTDIR * SZ_DIRE / SS(fs);
oks486	0:43cce7b453d0	4144	}
oks486	0:43cce7b453d0	4145	b_fat = b_vol + n_rsv; /* FAT area start sector */
oks486	0:43cce7b453d0	4146	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
oks486	0:43cce7b453d0	4147	b_data = b_dir + n_dir; /* Data area start sector */
oks486	0:43cce7b453d0	4148	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
oks486	0:43cce7b453d0	4149
oks486	0:43cce7b453d0	4150	/* Align data start sector to erase block boundary (for flash memory media) */
oks486	0:43cce7b453d0	4151	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
oks486	0:43cce7b453d0	4152	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
oks486	0:43cce7b453d0	4153	n = (n - b_data) / N_FATS;
oks486	0:43cce7b453d0	4154	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
oks486	0:43cce7b453d0	4155	n_rsv += n;
oks486	0:43cce7b453d0	4156	b_fat += n;
oks486	0:43cce7b453d0	4157	} else { /* FAT12/16: Expand FAT size */
oks486	0:43cce7b453d0	4158	n_fat += n;
oks486	0:43cce7b453d0	4159	}
oks486	0:43cce7b453d0	4160
oks486	0:43cce7b453d0	4161	/* Determine number of clusters and final check of validity of the FAT sub-type */
oks486	0:43cce7b453d0	4162	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
oks486	0:43cce7b453d0	4163	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
oks486	0:43cce7b453d0	4164	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
oks486	0:43cce7b453d0	4165	return FR_MKFS_ABORTED;
oks486	0:43cce7b453d0	4166
oks486	0:43cce7b453d0	4167	/* Determine system ID in the partition table */
oks486	0:43cce7b453d0	4168	if (fmt == FS_FAT32) {
oks486	0:43cce7b453d0	4169	sys = 0x0C; /* FAT32X */
oks486	0:43cce7b453d0	4170	} else {
oks486	0:43cce7b453d0	4171	if (fmt == FS_FAT12 && n_vol < 0x10000) {
oks486	0:43cce7b453d0	4172	sys = 0x01; /* FAT12(<65536) */
oks486	0:43cce7b453d0	4173	} else {
oks486	0:43cce7b453d0	4174	sys = (n_vol < 0x10000) ? 0x04 : 0x06; /* FAT16(<65536) : FAT12/16(>=65536) */
oks486	0:43cce7b453d0	4175	}
oks486	0:43cce7b453d0	4176	}
oks486	0:43cce7b453d0	4177
oks486	0:43cce7b453d0	4178	if (_MULTI_PARTITION && part) {
oks486	0:43cce7b453d0	4179	/* Update system ID in the partition table */
oks486	0:43cce7b453d0	4180	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
oks486	0:43cce7b453d0	4181	tbl[4] = sys;
oks486	0:43cce7b453d0	4182	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to teh MBR */
oks486	0:43cce7b453d0	4183	return FR_DISK_ERR;
oks486	0:43cce7b453d0	4184	md = 0xF8;
oks486	0:43cce7b453d0	4185	} else {
oks486	0:43cce7b453d0	4186	if (sfd) { /* No partition table (SFD) */
oks486	0:43cce7b453d0	4187	md = 0xF0;
oks486	0:43cce7b453d0	4188	} else { /* Create partition table (FDISK) */
oks486	0:43cce7b453d0	4189	mem_set(fs->win, 0, SS(fs));
oks486	0:43cce7b453d0	4190	tbl = fs->win + MBR_Table; /* Create partition table for single partition in the drive */
oks486	0:43cce7b453d0	4191	tbl[1] = 1; /* Partition start head */
oks486	0:43cce7b453d0	4192	tbl[2] = 1; /* Partition start sector */
oks486	0:43cce7b453d0	4193	tbl[3] = 0; /* Partition start cylinder */
oks486	0:43cce7b453d0	4194	tbl[4] = sys; /* System type */
oks486	0:43cce7b453d0	4195	tbl[5] = 254; /* Partition end head */
oks486	0:43cce7b453d0	4196	n = (b_vol + n_vol) / 63 / 255;
oks486	0:43cce7b453d0	4197	tbl[6] = (BYTE)(n >> 2 \| 63); /* Partition end sector */
oks486	0:43cce7b453d0	4198	tbl[7] = (BYTE)n; /* End cylinder */
oks486	0:43cce7b453d0	4199	ST_DWORD(tbl + 8, 63); /* Partition start in LBA */
oks486	0:43cce7b453d0	4200	ST_DWORD(tbl + 12, n_vol); /* Partition size in LBA */
oks486	0:43cce7b453d0	4201	ST_WORD(fs->win + BS_55AA, 0xAA55); /* MBR signature */
oks486	0:43cce7b453d0	4202	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR */
oks486	0:43cce7b453d0	4203	return FR_DISK_ERR;
oks486	0:43cce7b453d0	4204	md = 0xF8;
oks486	0:43cce7b453d0	4205	}
oks486	0:43cce7b453d0	4206	}
oks486	0:43cce7b453d0	4207
oks486	0:43cce7b453d0	4208	/* Create BPB in the VBR */
oks486	0:43cce7b453d0	4209	tbl = fs->win; /* Clear sector */
oks486	0:43cce7b453d0	4210	mem_set(tbl, 0, SS(fs));
oks486	0:43cce7b453d0	4211	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
oks486	0:43cce7b453d0	4212	i = SS(fs); /* Sector size */
oks486	0:43cce7b453d0	4213	ST_WORD(tbl + BPB_BytsPerSec, i);
oks486	0:43cce7b453d0	4214	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
oks486	0:43cce7b453d0	4215	ST_WORD(tbl + BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
oks486	0:43cce7b453d0	4216	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
oks486	0:43cce7b453d0	4217	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of root directory entries */
oks486	0:43cce7b453d0	4218	ST_WORD(tbl + BPB_RootEntCnt, i);
oks486	0:43cce7b453d0	4219	if (n_vol < 0x10000) { /* Number of total sectors */
oks486	0:43cce7b453d0	4220	ST_WORD(tbl + BPB_TotSec16, n_vol);
oks486	0:43cce7b453d0	4221	} else {
oks486	0:43cce7b453d0	4222	ST_DWORD(tbl + BPB_TotSec32, n_vol);
oks486	0:43cce7b453d0	4223	}
oks486	0:43cce7b453d0	4224	tbl[BPB_Media] = md; /* Media descriptor */
oks486	0:43cce7b453d0	4225	ST_WORD(tbl + BPB_SecPerTrk, 63); /* Number of sectors per track */
oks486	0:43cce7b453d0	4226	ST_WORD(tbl + BPB_NumHeads, 255); /* Number of heads */
oks486	0:43cce7b453d0	4227	ST_DWORD(tbl + BPB_HiddSec, b_vol); /* Hidden sectors */
oks486	0:43cce7b453d0	4228	n = GET_FATTIME(); /* Use current time as VSN */
oks486	0:43cce7b453d0	4229	if (fmt == FS_FAT32) {
oks486	0:43cce7b453d0	4230	ST_DWORD(tbl + BS_VolID32, n); /* VSN */
oks486	0:43cce7b453d0	4231	ST_DWORD(tbl + BPB_FATSz32, n_fat); /* Number of sectors per FAT */
oks486	0:43cce7b453d0	4232	ST_DWORD(tbl + BPB_RootClus, 2); /* Root directory start cluster (2) */
oks486	0:43cce7b453d0	4233	ST_WORD(tbl + BPB_FSInfo, 1); /* FSINFO record offset (VBR + 1) */
oks486	0:43cce7b453d0	4234	ST_WORD(tbl + BPB_BkBootSec, 6); /* Backup boot record offset (VBR + 6) */
oks486	0:43cce7b453d0	4235	tbl[BS_DrvNum32] = 0x80; /* Drive number */
oks486	0:43cce7b453d0	4236	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
oks486	0:43cce7b453d0	4237	mem_cpy(tbl + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
oks486	0:43cce7b453d0	4238	} else {
oks486	0:43cce7b453d0	4239	ST_DWORD(tbl + BS_VolID, n); /* VSN */
oks486	0:43cce7b453d0	4240	ST_WORD(tbl + BPB_FATSz16, n_fat); /* Number of sectors per FAT */
oks486	0:43cce7b453d0	4241	tbl[BS_DrvNum] = 0x80; /* Drive number */
oks486	0:43cce7b453d0	4242	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
oks486	0:43cce7b453d0	4243	mem_cpy(tbl + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
oks486	0:43cce7b453d0	4244	}
oks486	0:43cce7b453d0	4245	ST_WORD(tbl + BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
oks486	0:43cce7b453d0	4246	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
oks486	0:43cce7b453d0	4247	return FR_DISK_ERR;
oks486	0:43cce7b453d0	4248	if (fmt == FS_FAT32) /* Write it to the backup VBR if needed (VBR + 6) */
oks486	0:43cce7b453d0	4249	disk_write(pdrv, tbl, b_vol + 6, 1);
oks486	0:43cce7b453d0	4250
oks486	0:43cce7b453d0	4251	/* Initialize FAT area */
oks486	0:43cce7b453d0	4252	wsect = b_fat;
oks486	0:43cce7b453d0	4253	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
oks486	0:43cce7b453d0	4254	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
oks486	0:43cce7b453d0	4255	n = md; /* Media descriptor byte */
oks486	0:43cce7b453d0	4256	if (fmt != FS_FAT32) {
oks486	0:43cce7b453d0	4257	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
oks486	0:43cce7b453d0	4258	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT12/16) */
oks486	0:43cce7b453d0	4259	} else {
oks486	0:43cce7b453d0	4260	n \|= 0xFFFFFF00;
oks486	0:43cce7b453d0	4261	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT32) */
oks486	0:43cce7b453d0	4262	ST_DWORD(tbl + 4, 0xFFFFFFFF);
oks486	0:43cce7b453d0	4263	ST_DWORD(tbl + 8, 0x0FFFFFFF); /* Reserve cluster #2 for root directory */
oks486	0:43cce7b453d0	4264	}
oks486	0:43cce7b453d0	4265	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
oks486	0:43cce7b453d0	4266	return FR_DISK_ERR;
oks486	0:43cce7b453d0	4267	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
oks486	0:43cce7b453d0	4268	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
oks486	0:43cce7b453d0	4269	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
oks486	0:43cce7b453d0	4270	return FR_DISK_ERR;
oks486	0:43cce7b453d0	4271	}
oks486	0:43cce7b453d0	4272	}
oks486	0:43cce7b453d0	4273
oks486	0:43cce7b453d0	4274	/* Initialize root directory */
oks486	0:43cce7b453d0	4275	i = (fmt == FS_FAT32) ? au : (UINT)n_dir;
oks486	0:43cce7b453d0	4276	do {
oks486	0:43cce7b453d0	4277	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
oks486	0:43cce7b453d0	4278	return FR_DISK_ERR;
oks486	0:43cce7b453d0	4279	} while (--i);
oks486	0:43cce7b453d0	4280
oks486	0:43cce7b453d0	4281	#if _USE_TRIM /* Erase data area if needed */
oks486	0:43cce7b453d0	4282	{
oks486	0:43cce7b453d0	4283	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
oks486	0:43cce7b453d0	4284	disk_ioctl(pdrv, CTRL_TRIM, eb);
oks486	0:43cce7b453d0	4285	}
oks486	0:43cce7b453d0	4286	#endif
oks486	0:43cce7b453d0	4287
oks486	0:43cce7b453d0	4288	/* Create FSINFO if needed */
oks486	0:43cce7b453d0	4289	if (fmt == FS_FAT32) {
oks486	0:43cce7b453d0	4290	ST_DWORD(tbl + FSI_LeadSig, 0x41615252);
oks486	0:43cce7b453d0	4291	ST_DWORD(tbl + FSI_StrucSig, 0x61417272);
oks486	0:43cce7b453d0	4292	ST_DWORD(tbl + FSI_Free_Count, n_clst - 1); /* Number of free clusters */
oks486	0:43cce7b453d0	4293	ST_DWORD(tbl + FSI_Nxt_Free, 2); /* Last allocated cluster# */
oks486	0:43cce7b453d0	4294	ST_WORD(tbl + BS_55AA, 0xAA55);
oks486	0:43cce7b453d0	4295	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR + 1) */
oks486	0:43cce7b453d0	4296	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR + 7) */
oks486	0:43cce7b453d0	4297	}
oks486	0:43cce7b453d0	4298
oks486	0:43cce7b453d0	4299	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
oks486	0:43cce7b453d0	4300	}
oks486	0:43cce7b453d0	4301
oks486	0:43cce7b453d0	4302
oks486	0:43cce7b453d0	4303
oks486	0:43cce7b453d0	4304	#if _MULTI_PARTITION
oks486	0:43cce7b453d0	4305	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	4306	/* Create partition table on the physical drive */
oks486	0:43cce7b453d0	4307	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	4308
oks486	0:43cce7b453d0	4309	FRESULT f_fdisk (
oks486	0:43cce7b453d0	4310	BYTE pdrv, /* Physical drive number */
oks486	0:43cce7b453d0	4311	const DWORD szt[], /* Pointer to the size table for each partitions */
oks486	0:43cce7b453d0	4312	void* work /* Pointer to the working buffer */
oks486	0:43cce7b453d0	4313	)
oks486	0:43cce7b453d0	4314	{
oks486	0:43cce7b453d0	4315	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
oks486	0:43cce7b453d0	4316	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
oks486	0:43cce7b453d0	4317	DSTATUS stat;
oks486	0:43cce7b453d0	4318	DWORD sz_disk, sz_part, s_part;
oks486	0:43cce7b453d0	4319
oks486	0:43cce7b453d0	4320
oks486	0:43cce7b453d0	4321	stat = disk_initialize(pdrv);
oks486	0:43cce7b453d0	4322	if (stat & STA_NOINIT) return FR_NOT_READY;
oks486	0:43cce7b453d0	4323	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
oks486	0:43cce7b453d0	4324	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
oks486	0:43cce7b453d0	4325
oks486	0:43cce7b453d0	4326	/* Determine CHS in the table regardless of the drive geometry */
oks486	0:43cce7b453d0	4327	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
oks486	0:43cce7b453d0	4328	if (n == 256) n--;
oks486	0:43cce7b453d0	4329	e_hd = n - 1;
oks486	0:43cce7b453d0	4330	sz_cyl = 63 * n;
oks486	0:43cce7b453d0	4331	tot_cyl = sz_disk / sz_cyl;
oks486	0:43cce7b453d0	4332
oks486	0:43cce7b453d0	4333	/* Create partition table */
oks486	0:43cce7b453d0	4334	mem_set(buf, 0, _MAX_SS);
oks486	0:43cce7b453d0	4335	p = buf + MBR_Table; b_cyl = 0;
oks486	0:43cce7b453d0	4336	for (i = 0; i < 4; i++, p += SZ_PTE) {
oks486	0:43cce7b453d0	4337	p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
oks486	0:43cce7b453d0	4338	if (!p_cyl) continue;
oks486	0:43cce7b453d0	4339	s_part = (DWORD)sz_cyl * b_cyl;
oks486	0:43cce7b453d0	4340	sz_part = (DWORD)sz_cyl * p_cyl;
oks486	0:43cce7b453d0	4341	if (i == 0) { /* Exclude first track of cylinder 0 */
oks486	0:43cce7b453d0	4342	s_hd = 1;
oks486	0:43cce7b453d0	4343	s_part += 63; sz_part -= 63;
oks486	0:43cce7b453d0	4344	} else {
oks486	0:43cce7b453d0	4345	s_hd = 0;
oks486	0:43cce7b453d0	4346	}
oks486	0:43cce7b453d0	4347	e_cyl = b_cyl + p_cyl - 1;
oks486	0:43cce7b453d0	4348	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
oks486	0:43cce7b453d0	4349
oks486	0:43cce7b453d0	4350	/* Set partition table */
oks486	0:43cce7b453d0	4351	p[1] = s_hd; /* Start head */
oks486	0:43cce7b453d0	4352	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
oks486	0:43cce7b453d0	4353	p[3] = (BYTE)b_cyl; /* Start cylinder */
oks486	0:43cce7b453d0	4354	p[4] = 0x06; /* System type (temporary setting) */
oks486	0:43cce7b453d0	4355	p[5] = e_hd; /* End head */
oks486	0:43cce7b453d0	4356	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
oks486	0:43cce7b453d0	4357	p[7] = (BYTE)e_cyl; /* End cylinder */
oks486	0:43cce7b453d0	4358	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
oks486	0:43cce7b453d0	4359	ST_DWORD(p + 12, sz_part); /* Partition size */
oks486	0:43cce7b453d0	4360
oks486	0:43cce7b453d0	4361	/* Next partition */
oks486	0:43cce7b453d0	4362	b_cyl += p_cyl;
oks486	0:43cce7b453d0	4363	}
oks486	0:43cce7b453d0	4364	ST_WORD(p, 0xAA55);
oks486	0:43cce7b453d0	4365
oks486	0:43cce7b453d0	4366	/* Write it to the MBR */
oks486	0:43cce7b453d0	4367	return (disk_write(pdrv, buf, 0, 1) != RES_OK \|\| disk_ioctl(pdrv, CTRL_SYNC, 0) != RES_OK) ? FR_DISK_ERR : FR_OK;
oks486	0:43cce7b453d0	4368	}
oks486	0:43cce7b453d0	4369
oks486	0:43cce7b453d0	4370
oks486	0:43cce7b453d0	4371	#endif /* _MULTI_PARTITION */
oks486	0:43cce7b453d0	4372	#endif /* _USE_MKFS && !_FS_READONLY */
oks486	0:43cce7b453d0	4373
oks486	0:43cce7b453d0	4374
oks486	0:43cce7b453d0	4375
oks486	0:43cce7b453d0	4376
oks486	0:43cce7b453d0	4377	#if _USE_STRFUNC
oks486	0:43cce7b453d0	4378	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	4379	/* Get a string from the file */
oks486	0:43cce7b453d0	4380	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	4381
oks486	0:43cce7b453d0	4382	TCHAR* f_gets (
oks486	0:43cce7b453d0	4383	TCHAR* buff, /* Pointer to the string buffer to read */
oks486	0:43cce7b453d0	4384	int len, /* Size of string buffer (characters) */
oks486	0:43cce7b453d0	4385	FIL* fp /* Pointer to the file object */
oks486	0:43cce7b453d0	4386	)
oks486	0:43cce7b453d0	4387	{
oks486	0:43cce7b453d0	4388	int n = 0;
oks486	0:43cce7b453d0	4389	TCHAR c, *p = buff;
oks486	0:43cce7b453d0	4390	BYTE s[2];
oks486	0:43cce7b453d0	4391	UINT rc;
oks486	0:43cce7b453d0	4392
oks486	0:43cce7b453d0	4393
oks486	0:43cce7b453d0	4394	while (n < len - 1) { /* Read characters until buffer gets filled */
oks486	0:43cce7b453d0	4395	#if _USE_LFN && _LFN_UNICODE
oks486	0:43cce7b453d0	4396	#if _STRF_ENCODE == 3 /* Read a character in UTF-8 */
oks486	0:43cce7b453d0	4397	f_read(fp, s, 1, &rc);
oks486	0:43cce7b453d0	4398	if (rc != 1) break;
oks486	0:43cce7b453d0	4399	c = s[0];
oks486	0:43cce7b453d0	4400	if (c >= 0x80) {
oks486	0:43cce7b453d0	4401	if (c < 0xC0) continue; /* Skip stray trailer */
oks486	0:43cce7b453d0	4402	if (c < 0xE0) { /* Two-byte sequence */
oks486	0:43cce7b453d0	4403	f_read(fp, s, 1, &rc);
oks486	0:43cce7b453d0	4404	if (rc != 1) break;
oks486	0:43cce7b453d0	4405	c = (c & 0x1F) << 6 \| (s[0] & 0x3F);
oks486	0:43cce7b453d0	4406	if (c < 0x80) c = '?';
oks486	0:43cce7b453d0	4407	} else {
oks486	0:43cce7b453d0	4408	if (c < 0xF0) { /* Three-byte sequence */
oks486	0:43cce7b453d0	4409	f_read(fp, s, 2, &rc);
oks486	0:43cce7b453d0	4410	if (rc != 2) break;
oks486	0:43cce7b453d0	4411	c = c << 12 \| (s[0] & 0x3F) << 6 \| (s[1] & 0x3F);
oks486	0:43cce7b453d0	4412	if (c < 0x800) c = '?';
oks486	0:43cce7b453d0	4413	} else { /* Reject four-byte sequence */
oks486	0:43cce7b453d0	4414	c = '?';
oks486	0:43cce7b453d0	4415	}
oks486	0:43cce7b453d0	4416	}
oks486	0:43cce7b453d0	4417	}
oks486	0:43cce7b453d0	4418	#elif _STRF_ENCODE == 2 /* Read a character in UTF-16BE */
oks486	0:43cce7b453d0	4419	f_read(fp, s, 2, &rc);
oks486	0:43cce7b453d0	4420	if (rc != 2) break;
oks486	0:43cce7b453d0	4421	c = s[1] + (s[0] << 8);
oks486	0:43cce7b453d0	4422	#elif _STRF_ENCODE == 1 /* Read a character in UTF-16LE */
oks486	0:43cce7b453d0	4423	f_read(fp, s, 2, &rc);
oks486	0:43cce7b453d0	4424	if (rc != 2) break;
oks486	0:43cce7b453d0	4425	c = s[0] + (s[1] << 8);
oks486	0:43cce7b453d0	4426	#else /* Read a character in ANSI/OEM */
oks486	0:43cce7b453d0	4427	f_read(fp, s, 1, &rc);
oks486	0:43cce7b453d0	4428	if (rc != 1) break;
oks486	0:43cce7b453d0	4429	c = s[0];
oks486	0:43cce7b453d0	4430	if (IsDBCS1(c)) {
oks486	0:43cce7b453d0	4431	f_read(fp, s, 1, &rc);
oks486	0:43cce7b453d0	4432	if (rc != 1) break;
oks486	0:43cce7b453d0	4433	c = (c << 8) + s[0];
oks486	0:43cce7b453d0	4434	}
oks486	0:43cce7b453d0	4435	c = ff_convert(c, 1); /* OEM -> Unicode */
oks486	0:43cce7b453d0	4436	if (!c) c = '?';
oks486	0:43cce7b453d0	4437	#endif
oks486	0:43cce7b453d0	4438	#else /* Read a character without conversion */
oks486	0:43cce7b453d0	4439	f_read(fp, s, 1, &rc);
oks486	0:43cce7b453d0	4440	if (rc != 1) break;
oks486	0:43cce7b453d0	4441	c = s[0];
oks486	0:43cce7b453d0	4442	#endif
oks486	0:43cce7b453d0	4443	if (_USE_STRFUNC == 2 && c == '\r') continue; /* Strip '\r' */
oks486	0:43cce7b453d0	4444	*p++ = c;
oks486	0:43cce7b453d0	4445	n++;
oks486	0:43cce7b453d0	4446	if (c == '\n') break; /* Break on EOL */
oks486	0:43cce7b453d0	4447	}
oks486	0:43cce7b453d0	4448	*p = 0;
oks486	0:43cce7b453d0	4449	return n ? buff : 0; /* When no data read (eof or error), return with error. */
oks486	0:43cce7b453d0	4450	}
oks486	0:43cce7b453d0	4451
oks486	0:43cce7b453d0	4452
oks486	0:43cce7b453d0	4453
oks486	0:43cce7b453d0	4454
oks486	0:43cce7b453d0	4455	#if !_FS_READONLY
oks486	0:43cce7b453d0	4456	#include <stdarg.h>
oks486	0:43cce7b453d0	4457	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	4458	/* Put a character to the file */
oks486	0:43cce7b453d0	4459	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	4460
oks486	0:43cce7b453d0	4461	typedef struct {
oks486	0:43cce7b453d0	4462	FIL* fp;
oks486	0:43cce7b453d0	4463	int idx, nchr;
oks486	0:43cce7b453d0	4464	BYTE buf[64];
oks486	0:43cce7b453d0	4465	} putbuff;
oks486	0:43cce7b453d0	4466
oks486	0:43cce7b453d0	4467
oks486	0:43cce7b453d0	4468	static
oks486	0:43cce7b453d0	4469	void putc_bfd (
oks486	0:43cce7b453d0	4470	putbuff* pb,
oks486	0:43cce7b453d0	4471	TCHAR c
oks486	0:43cce7b453d0	4472	)
oks486	0:43cce7b453d0	4473	{
oks486	0:43cce7b453d0	4474	UINT bw;
oks486	0:43cce7b453d0	4475	int i;
oks486	0:43cce7b453d0	4476
oks486	0:43cce7b453d0	4477
oks486	0:43cce7b453d0	4478	if (_USE_STRFUNC == 2 && c == '\n') /* LF -> CRLF conversion */
oks486	0:43cce7b453d0	4479	putc_bfd(pb, '\r');
oks486	0:43cce7b453d0	4480
oks486	0:43cce7b453d0	4481	i = pb->idx; /* Buffer write index (-1:error) */
oks486	0:43cce7b453d0	4482	if (i < 0) return;
oks486	0:43cce7b453d0	4483
oks486	0:43cce7b453d0	4484	#if _USE_LFN && _LFN_UNICODE
oks486	0:43cce7b453d0	4485	#if _STRF_ENCODE == 3 /* Write a character in UTF-8 */
oks486	0:43cce7b453d0	4486	if (c < 0x80) { /* 7-bit */
oks486	0:43cce7b453d0	4487	pb->buf[i++] = (BYTE)c;
oks486	0:43cce7b453d0	4488	} else {
oks486	0:43cce7b453d0	4489	if (c < 0x800) { /* 11-bit */
oks486	0:43cce7b453d0	4490	pb->buf[i++] = (BYTE)(0xC0 \| c >> 6);
oks486	0:43cce7b453d0	4491	} else { /* 16-bit */
oks486	0:43cce7b453d0	4492	pb->buf[i++] = (BYTE)(0xE0 \| c >> 12);
oks486	0:43cce7b453d0	4493	pb->buf[i++] = (BYTE)(0x80 \| (c >> 6 & 0x3F));
oks486	0:43cce7b453d0	4494	}
oks486	0:43cce7b453d0	4495	pb->buf[i++] = (BYTE)(0x80 \| (c & 0x3F));
oks486	0:43cce7b453d0	4496	}
oks486	0:43cce7b453d0	4497	#elif _STRF_ENCODE == 2 /* Write a character in UTF-16BE */
oks486	0:43cce7b453d0	4498	pb->buf[i++] = (BYTE)(c >> 8);
oks486	0:43cce7b453d0	4499	pb->buf[i++] = (BYTE)c;
oks486	0:43cce7b453d0	4500	#elif _STRF_ENCODE == 1 /* Write a character in UTF-16LE */
oks486	0:43cce7b453d0	4501	pb->buf[i++] = (BYTE)c;
oks486	0:43cce7b453d0	4502	pb->buf[i++] = (BYTE)(c >> 8);
oks486	0:43cce7b453d0	4503	#else /* Write a character in ANSI/OEM */
oks486	0:43cce7b453d0	4504	c = ff_convert(c, 0); /* Unicode -> OEM */
oks486	0:43cce7b453d0	4505	if (!c) c = '?';
oks486	0:43cce7b453d0	4506	if (c >= 0x100)
oks486	0:43cce7b453d0	4507	pb->buf[i++] = (BYTE)(c >> 8);
oks486	0:43cce7b453d0	4508	pb->buf[i++] = (BYTE)c;
oks486	0:43cce7b453d0	4509	#endif
oks486	0:43cce7b453d0	4510	#else /* Write a character without conversion */
oks486	0:43cce7b453d0	4511	pb->buf[i++] = (BYTE)c;
oks486	0:43cce7b453d0	4512	#endif
oks486	0:43cce7b453d0	4513
oks486	0:43cce7b453d0	4514	if (i >= (int)(sizeof pb->buf) - 3) { /* Write buffered characters to the file */
oks486	0:43cce7b453d0	4515	f_write(pb->fp, pb->buf, (UINT)i, &bw);
oks486	0:43cce7b453d0	4516	i = (bw == (UINT)i) ? 0 : -1;
oks486	0:43cce7b453d0	4517	}
oks486	0:43cce7b453d0	4518	pb->idx = i;
oks486	0:43cce7b453d0	4519	pb->nchr++;
oks486	0:43cce7b453d0	4520	}
oks486	0:43cce7b453d0	4521
oks486	0:43cce7b453d0	4522
oks486	0:43cce7b453d0	4523
oks486	0:43cce7b453d0	4524	int f_putc (
oks486	0:43cce7b453d0	4525	TCHAR c, /* A character to be output */
oks486	0:43cce7b453d0	4526	FIL* fp /* Pointer to the file object */
oks486	0:43cce7b453d0	4527	)
oks486	0:43cce7b453d0	4528	{
oks486	0:43cce7b453d0	4529	putbuff pb;
oks486	0:43cce7b453d0	4530	UINT nw;
oks486	0:43cce7b453d0	4531
oks486	0:43cce7b453d0	4532
oks486	0:43cce7b453d0	4533	pb.fp = fp; /* Initialize output buffer */
oks486	0:43cce7b453d0	4534	pb.nchr = pb.idx = 0;
oks486	0:43cce7b453d0	4535
oks486	0:43cce7b453d0	4536	putc_bfd(&pb, c); /* Put a character */
oks486	0:43cce7b453d0	4537
oks486	0:43cce7b453d0	4538	if ( pb.idx >= 0 /* Flush buffered characters to the file */
oks486	0:43cce7b453d0	4539	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
oks486	0:43cce7b453d0	4540	&& (UINT)pb.idx == nw) return pb.nchr;
oks486	0:43cce7b453d0	4541	return EOF;
oks486	0:43cce7b453d0	4542	}
oks486	0:43cce7b453d0	4543
oks486	0:43cce7b453d0	4544
oks486	0:43cce7b453d0	4545
oks486	0:43cce7b453d0	4546
oks486	0:43cce7b453d0	4547	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	4548	/* Put a string to the file */
oks486	0:43cce7b453d0	4549	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	4550
oks486	0:43cce7b453d0	4551	int f_puts (
oks486	0:43cce7b453d0	4552	const TCHAR* str, /* Pointer to the string to be output */
oks486	0:43cce7b453d0	4553	FIL* fp /* Pointer to the file object */
oks486	0:43cce7b453d0	4554	)
oks486	0:43cce7b453d0	4555	{
oks486	0:43cce7b453d0	4556	putbuff pb;
oks486	0:43cce7b453d0	4557	UINT nw;
oks486	0:43cce7b453d0	4558
oks486	0:43cce7b453d0	4559
oks486	0:43cce7b453d0	4560	pb.fp = fp; /* Initialize output buffer */
oks486	0:43cce7b453d0	4561	pb.nchr = pb.idx = 0;
oks486	0:43cce7b453d0	4562
oks486	0:43cce7b453d0	4563	while (str) / Put the string */
oks486	0:43cce7b453d0	4564	putc_bfd(&pb, *str++);
oks486	0:43cce7b453d0	4565
oks486	0:43cce7b453d0	4566	if ( pb.idx >= 0 /* Flush buffered characters to the file */
oks486	0:43cce7b453d0	4567	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
oks486	0:43cce7b453d0	4568	&& (UINT)pb.idx == nw) return pb.nchr;
oks486	0:43cce7b453d0	4569	return EOF;
oks486	0:43cce7b453d0	4570	}
oks486	0:43cce7b453d0	4571
oks486	0:43cce7b453d0	4572
oks486	0:43cce7b453d0	4573
oks486	0:43cce7b453d0	4574
oks486	0:43cce7b453d0	4575	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	4576	/* Put a formatted string to the file */
oks486	0:43cce7b453d0	4577	/-----------------------------------------------------------------------/
oks486	0:43cce7b453d0	4578
oks486	0:43cce7b453d0	4579	int f_printf (
oks486	0:43cce7b453d0	4580	FIL* fp, /* Pointer to the file object */
oks486	0:43cce7b453d0	4581	const TCHAR* fmt, /* Pointer to the format string */
oks486	0:43cce7b453d0	4582	... /* Optional arguments... */
oks486	0:43cce7b453d0	4583	)
oks486	0:43cce7b453d0	4584	{
oks486	0:43cce7b453d0	4585	va_list arp;
oks486	0:43cce7b453d0	4586	BYTE f, r;
oks486	0:43cce7b453d0	4587	UINT nw, i, j, w;
oks486	0:43cce7b453d0	4588	DWORD v;
oks486	0:43cce7b453d0	4589	TCHAR c, d, s[16], *p;
oks486	0:43cce7b453d0	4590	putbuff pb;
oks486	0:43cce7b453d0	4591
oks486	0:43cce7b453d0	4592
oks486	0:43cce7b453d0	4593	pb.fp = fp; /* Initialize output buffer */
oks486	0:43cce7b453d0	4594	pb.nchr = pb.idx = 0;
oks486	0:43cce7b453d0	4595
oks486	0:43cce7b453d0	4596	va_start(arp, fmt);
oks486	0:43cce7b453d0	4597
oks486	0:43cce7b453d0	4598	for (;;) {
oks486	0:43cce7b453d0	4599	c = *fmt++;
oks486	0:43cce7b453d0	4600	if (c == 0) break; /* End of string */
oks486	0:43cce7b453d0	4601	if (c != '%') { /* Non escape character */
oks486	0:43cce7b453d0	4602	putc_bfd(&pb, c);
oks486	0:43cce7b453d0	4603	continue;
oks486	0:43cce7b453d0	4604	}
oks486	0:43cce7b453d0	4605	w = f = 0;
oks486	0:43cce7b453d0	4606	c = *fmt++;
oks486	0:43cce7b453d0	4607	if (c == '0') { /* Flag: '0' padding */
oks486	0:43cce7b453d0	4608	f = 1; c = *fmt++;
oks486	0:43cce7b453d0	4609	} else {
oks486	0:43cce7b453d0	4610	if (c == '-') { /* Flag: left justified */
oks486	0:43cce7b453d0	4611	f = 2; c = *fmt++;
oks486	0:43cce7b453d0	4612	}
oks486	0:43cce7b453d0	4613	}
oks486	0:43cce7b453d0	4614	while (IsDigit(c)) { /* Precision */
oks486	0:43cce7b453d0	4615	w = w * 10 + c - '0';
oks486	0:43cce7b453d0	4616	c = *fmt++;
oks486	0:43cce7b453d0	4617	}
oks486	0:43cce7b453d0	4618	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
oks486	0:43cce7b453d0	4619	f \|= 4; c = *fmt++;
oks486	0:43cce7b453d0	4620	}
oks486	0:43cce7b453d0	4621	if (!c) break;
oks486	0:43cce7b453d0	4622	d = c;
oks486	0:43cce7b453d0	4623	if (IsLower(d)) d -= 0x20;
oks486	0:43cce7b453d0	4624	switch (d) { /* Type is... */
oks486	0:43cce7b453d0	4625	case 'S' : /* String */
oks486	0:43cce7b453d0	4626	p = va_arg(arp, TCHAR*);
oks486	0:43cce7b453d0	4627	for (j = 0; p[j]; j++) ;
oks486	0:43cce7b453d0	4628	if (!(f & 2)) {
oks486	0:43cce7b453d0	4629	while (j++ < w) putc_bfd(&pb, ' ');
oks486	0:43cce7b453d0	4630	}
oks486	0:43cce7b453d0	4631	while (p) putc_bfd(&pb, p++);
oks486	0:43cce7b453d0	4632	while (j++ < w) putc_bfd(&pb, ' ');
oks486	0:43cce7b453d0	4633	continue;
oks486	0:43cce7b453d0	4634	case 'C' : /* Character */
oks486	0:43cce7b453d0	4635	putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue;
oks486	0:43cce7b453d0	4636	case 'B' : /* Binary */
oks486	0:43cce7b453d0	4637	r = 2; break;
oks486	0:43cce7b453d0	4638	case 'O' : /* Octal */
oks486	0:43cce7b453d0	4639	r = 8; break;
oks486	0:43cce7b453d0	4640	case 'D' : /* Signed decimal */
oks486	0:43cce7b453d0	4641	case 'U' : /* Unsigned decimal */
oks486	0:43cce7b453d0	4642	r = 10; break;
oks486	0:43cce7b453d0	4643	case 'X' : /* Hexdecimal */
oks486	0:43cce7b453d0	4644	r = 16; break;
oks486	0:43cce7b453d0	4645	default: /* Unknown type (pass-through) */
oks486	0:43cce7b453d0	4646	putc_bfd(&pb, c); continue;
oks486	0:43cce7b453d0	4647	}
oks486	0:43cce7b453d0	4648
oks486	0:43cce7b453d0	4649	/* Get an argument and put it in numeral */
oks486	0:43cce7b453d0	4650	v = (f & 4) ? (DWORD)va_arg(arp, long) : ((d == 'D') ? (DWORD)(long)va_arg(arp, int) : (DWORD)va_arg(arp, unsigned int));
oks486	0:43cce7b453d0	4651	if (d == 'D' && (v & 0x80000000)) {
oks486	0:43cce7b453d0	4652	v = 0 - v;
oks486	0:43cce7b453d0	4653	f \|= 8;
oks486	0:43cce7b453d0	4654	}
oks486	0:43cce7b453d0	4655	i = 0;
oks486	0:43cce7b453d0	4656	do {
oks486	0:43cce7b453d0	4657	d = (TCHAR)(v % r); v /= r;
oks486	0:43cce7b453d0	4658	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
oks486	0:43cce7b453d0	4659	s[i++] = d + '0';
oks486	0:43cce7b453d0	4660	} while (v && i < sizeof s / sizeof s[0]);
oks486	0:43cce7b453d0	4661	if (f & 8) s[i++] = '-';
oks486	0:43cce7b453d0	4662	j = i; d = (f & 1) ? '0' : ' ';
oks486	0:43cce7b453d0	4663	while (!(f & 2) && j++ < w) putc_bfd(&pb, d);
oks486	0:43cce7b453d0	4664	do putc_bfd(&pb, s[--i]); while (i);
oks486	0:43cce7b453d0	4665	while (j++ < w) putc_bfd(&pb, d);
oks486	0:43cce7b453d0	4666	}
oks486	0:43cce7b453d0	4667
oks486	0:43cce7b453d0	4668	va_end(arp);
oks486	0:43cce7b453d0	4669
oks486	0:43cce7b453d0	4670	if ( pb.idx >= 0 /* Flush buffered characters to the file */
oks486	0:43cce7b453d0	4671	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
oks486	0:43cce7b453d0	4672	&& (UINT)pb.idx == nw) return pb.nchr;
oks486	0:43cce7b453d0	4673	return EOF;
oks486	0:43cce7b453d0	4674	}
oks486	0:43cce7b453d0	4675
oks486	0:43cce7b453d0	4676	#endif /* !_FS_READONLY */
oks486	0:43cce7b453d0	4677	#endif /* _USE_STRFUNC */

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	28 Apr 2016
Imports:	12
Forks:	0
Commits:	3
Dependents:	0
Dependencies:	1
Followers:	3

FatfsIJFW/ff.c@2:daf6c4719496, 2016-08-21 (annotated)

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