Example_RTOS - Rtos API example

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Rtos API example

mbed-os/features/filesystem/fat/ChaN/ff.cpp@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:: marcozecchini
Date:: Sat Feb 23 12:13:36 2019 +0000
Revision:: 0:9fca2b23d0ba

final commit

Who changed what in which revision?

User	Revision	Line number	New contents of line
marcozecchini	0:9fca2b23d0ba	1	/*----------------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2	/ FatFs - FAT file system module R0.11a (C)ChaN, 2015 /
marcozecchini	0:9fca2b23d0ba	3	/-----------------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4	/ FatFs module is a free software that opened under license policy of
marcozecchini	0:9fca2b23d0ba	5	/ following conditions.
marcozecchini	0:9fca2b23d0ba	6	/
marcozecchini	0:9fca2b23d0ba	7	/ Copyright (C) 2015, ChaN, all right reserved.
marcozecchini	0:9fca2b23d0ba	8	/
marcozecchini	0:9fca2b23d0ba	9	/ 1. Redistributions of source code must retain the above copyright notice,
marcozecchini	0:9fca2b23d0ba	10	/ this condition and the following disclaimer.
marcozecchini	0:9fca2b23d0ba	11	/
marcozecchini	0:9fca2b23d0ba	12	/ This software is provided by the copyright holder and contributors "AS IS"
marcozecchini	0:9fca2b23d0ba	13	/ and any warranties related to this software are DISCLAIMED.
marcozecchini	0:9fca2b23d0ba	14	/ The copyright owner or contributors be NOT LIABLE for any damages caused
marcozecchini	0:9fca2b23d0ba	15	/ by use of this software.
marcozecchini	0:9fca2b23d0ba	16	/----------------------------------------------------------------------------*/
marcozecchini	0:9fca2b23d0ba	17
marcozecchini	0:9fca2b23d0ba	18
marcozecchini	0:9fca2b23d0ba	19	#include "ff.h" /* Declarations of FatFs API */
marcozecchini	0:9fca2b23d0ba	20	#include "diskio.h" /* Declarations of disk I/O functions */
marcozecchini	0:9fca2b23d0ba	21
marcozecchini	0:9fca2b23d0ba	22
marcozecchini	0:9fca2b23d0ba	23	/*--------------------------------------------------------------------------
marcozecchini	0:9fca2b23d0ba	24
marcozecchini	0:9fca2b23d0ba	25	Module Private Definitions
marcozecchini	0:9fca2b23d0ba	26
marcozecchini	0:9fca2b23d0ba	27	---------------------------------------------------------------------------*/
marcozecchini	0:9fca2b23d0ba	28
marcozecchini	0:9fca2b23d0ba	29	#if _FATFS != 64180 /* Revision ID */
marcozecchini	0:9fca2b23d0ba	30	#error Wrong include file (ff.h).
marcozecchini	0:9fca2b23d0ba	31	#endif
marcozecchini	0:9fca2b23d0ba	32
marcozecchini	0:9fca2b23d0ba	33
marcozecchini	0:9fca2b23d0ba	34	/* Reentrancy related */
marcozecchini	0:9fca2b23d0ba	35	#if _FS_REENTRANT
marcozecchini	0:9fca2b23d0ba	36	#if _USE_LFN == 1
marcozecchini	0:9fca2b23d0ba	37	#error Static LFN work area cannot be used at thread-safe configuration
marcozecchini	0:9fca2b23d0ba	38	#endif
marcozecchini	0:9fca2b23d0ba	39	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
marcozecchini	0:9fca2b23d0ba	40	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
marcozecchini	0:9fca2b23d0ba	41	#else
marcozecchini	0:9fca2b23d0ba	42	#define ENTER_FF(fs)
marcozecchini	0:9fca2b23d0ba	43	#define LEAVE_FF(fs, res) return res
marcozecchini	0:9fca2b23d0ba	44	#endif
marcozecchini	0:9fca2b23d0ba	45
marcozecchini	0:9fca2b23d0ba	46	#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }
marcozecchini	0:9fca2b23d0ba	47
marcozecchini	0:9fca2b23d0ba	48
marcozecchini	0:9fca2b23d0ba	49	/* Definitions of sector size */
marcozecchini	0:9fca2b23d0ba	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)
marcozecchini	0:9fca2b23d0ba	51	#error Wrong sector size configuration
marcozecchini	0:9fca2b23d0ba	52	#endif
marcozecchini	0:9fca2b23d0ba	53	#if _MAX_SS == _MIN_SS
marcozecchini	0:9fca2b23d0ba	54	#define SS(fs) ((UINT)_MAX_SS) /* Fixed sector size */
marcozecchini	0:9fca2b23d0ba	55	#else
marcozecchini	0:9fca2b23d0ba	56	#define SS(fs) ((fs)->ssize) /* Variable sector size */
marcozecchini	0:9fca2b23d0ba	57	#endif
marcozecchini	0:9fca2b23d0ba	58
marcozecchini	0:9fca2b23d0ba	59
marcozecchini	0:9fca2b23d0ba	60	/* Timestamp feature */
marcozecchini	0:9fca2b23d0ba	61	#if _FS_NORTC == 1
marcozecchini	0:9fca2b23d0ba	62	#if _NORTC_YEAR < 1980 \|\| _NORTC_YEAR > 2107 \|\| _NORTC_MON < 1 \|\| _NORTC_MON > 12 \|\| _NORTC_MDAY < 1 \|\| _NORTC_MDAY > 31
marcozecchini	0:9fca2b23d0ba	63	#error Invalid _FS_NORTC settings
marcozecchini	0:9fca2b23d0ba	64	#endif
marcozecchini	0:9fca2b23d0ba	65	#define GET_FATTIME() ((DWORD)(_NORTC_YEAR - 1980) << 25 \| (DWORD)_NORTC_MON << 21 \| (DWORD)_NORTC_MDAY << 16)
marcozecchini	0:9fca2b23d0ba	66	#else
marcozecchini	0:9fca2b23d0ba	67	#define GET_FATTIME() get_fattime()
marcozecchini	0:9fca2b23d0ba	68	#endif
marcozecchini	0:9fca2b23d0ba	69
marcozecchini	0:9fca2b23d0ba	70
marcozecchini	0:9fca2b23d0ba	71	/* File access control feature */
marcozecchini	0:9fca2b23d0ba	72	#if _FS_LOCK
marcozecchini	0:9fca2b23d0ba	73	#if _FS_READONLY
marcozecchini	0:9fca2b23d0ba	74	#error _FS_LOCK must be 0 at read-only configuration
marcozecchini	0:9fca2b23d0ba	75	#endif
marcozecchini	0:9fca2b23d0ba	76	typedef struct {
marcozecchini	0:9fca2b23d0ba	77	FATFS fs; / Object ID 1, volume (NULL:blank entry) */
marcozecchini	0:9fca2b23d0ba	78	DWORD clu; /* Object ID 2, directory (0:root) */
marcozecchini	0:9fca2b23d0ba	79	WORD idx; /* Object ID 3, directory index */
marcozecchini	0:9fca2b23d0ba	80	WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */
marcozecchini	0:9fca2b23d0ba	81	} FILESEM;
marcozecchini	0:9fca2b23d0ba	82	#endif
marcozecchini	0:9fca2b23d0ba	83
marcozecchini	0:9fca2b23d0ba	84
marcozecchini	0:9fca2b23d0ba	85
marcozecchini	0:9fca2b23d0ba	86	/* DBCS code ranges and SBCS upper conversion tables */
marcozecchini	0:9fca2b23d0ba	87
marcozecchini	0:9fca2b23d0ba	88	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
marcozecchini	0:9fca2b23d0ba	89	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
marcozecchini	0:9fca2b23d0ba	90	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
marcozecchini	0:9fca2b23d0ba	91	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
marcozecchini	0:9fca2b23d0ba	92	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
marcozecchini	0:9fca2b23d0ba	93	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
marcozecchini	0:9fca2b23d0ba	94	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
marcozecchini	0:9fca2b23d0ba	95	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
marcozecchini	0:9fca2b23d0ba	96	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
marcozecchini	0:9fca2b23d0ba	97
marcozecchini	0:9fca2b23d0ba	98	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
marcozecchini	0:9fca2b23d0ba	99	#define _DF1S 0x81
marcozecchini	0:9fca2b23d0ba	100	#define _DF1E 0xFE
marcozecchini	0:9fca2b23d0ba	101	#define _DS1S 0x40
marcozecchini	0:9fca2b23d0ba	102	#define _DS1E 0x7E
marcozecchini	0:9fca2b23d0ba	103	#define _DS2S 0x80
marcozecchini	0:9fca2b23d0ba	104	#define _DS2E 0xFE
marcozecchini	0:9fca2b23d0ba	105
marcozecchini	0:9fca2b23d0ba	106	#elif _CODE_PAGE == 949 /* Korean */
marcozecchini	0:9fca2b23d0ba	107	#define _DF1S 0x81
marcozecchini	0:9fca2b23d0ba	108	#define _DF1E 0xFE
marcozecchini	0:9fca2b23d0ba	109	#define _DS1S 0x41
marcozecchini	0:9fca2b23d0ba	110	#define _DS1E 0x5A
marcozecchini	0:9fca2b23d0ba	111	#define _DS2S 0x61
marcozecchini	0:9fca2b23d0ba	112	#define _DS2E 0x7A
marcozecchini	0:9fca2b23d0ba	113	#define _DS3S 0x81
marcozecchini	0:9fca2b23d0ba	114	#define _DS3E 0xFE
marcozecchini	0:9fca2b23d0ba	115
marcozecchini	0:9fca2b23d0ba	116	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
marcozecchini	0:9fca2b23d0ba	117	#define _DF1S 0x81
marcozecchini	0:9fca2b23d0ba	118	#define _DF1E 0xFE
marcozecchini	0:9fca2b23d0ba	119	#define _DS1S 0x40
marcozecchini	0:9fca2b23d0ba	120	#define _DS1E 0x7E
marcozecchini	0:9fca2b23d0ba	121	#define _DS2S 0xA1
marcozecchini	0:9fca2b23d0ba	122	#define _DS2E 0xFE
marcozecchini	0:9fca2b23d0ba	123
marcozecchini	0:9fca2b23d0ba	124	#elif _CODE_PAGE == 437 /* U.S. */
marcozecchini	0:9fca2b23d0ba	125	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	126	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	127	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
marcozecchini	0:9fca2b23d0ba	128	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	129	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	130	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	131	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
marcozecchini	0:9fca2b23d0ba	132	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
marcozecchini	0:9fca2b23d0ba	133	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	134
marcozecchini	0:9fca2b23d0ba	135	#elif _CODE_PAGE == 720 /* Arabic */
marcozecchini	0:9fca2b23d0ba	136	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	137	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	138	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
marcozecchini	0:9fca2b23d0ba	139	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	140	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	141	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	142	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
marcozecchini	0:9fca2b23d0ba	143	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
marcozecchini	0:9fca2b23d0ba	144	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	145
marcozecchini	0:9fca2b23d0ba	146	#elif _CODE_PAGE == 737 /* Greek */
marcozecchini	0:9fca2b23d0ba	147	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	148	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	149	0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
marcozecchini	0:9fca2b23d0ba	150	0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96, \
marcozecchini	0:9fca2b23d0ba	151	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	152	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	153	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
marcozecchini	0:9fca2b23d0ba	154	0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xEF,0xF5,0xF0,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
marcozecchini	0:9fca2b23d0ba	155	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	156
marcozecchini	0:9fca2b23d0ba	157	#elif _CODE_PAGE == 771 /* KBL */
marcozecchini	0:9fca2b23d0ba	158	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	159	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	160	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
marcozecchini	0:9fca2b23d0ba	161	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	162	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	163	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	164	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDC,0xDE,0xDE, \
marcozecchini	0:9fca2b23d0ba	165	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
marcozecchini	0:9fca2b23d0ba	166	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	167
marcozecchini	0:9fca2b23d0ba	168	#elif _CODE_PAGE == 775 /* Baltic */
marcozecchini	0:9fca2b23d0ba	169	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	170	#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	171	0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
marcozecchini	0:9fca2b23d0ba	172	0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	173	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	174	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	175	0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
marcozecchini	0:9fca2b23d0ba	176	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF, \
marcozecchini	0:9fca2b23d0ba	177	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	178
marcozecchini	0:9fca2b23d0ba	179	#elif _CODE_PAGE == 850 /* Latin 1 */
marcozecchini	0:9fca2b23d0ba	180	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	181	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x41,0x43,0x45,0x45,0x45,0x49,0x49,0x49,0x41,0x41, \
marcozecchini	0:9fca2b23d0ba	182	0x45,0x92,0x92,0x4F,0x4F,0x4F,0x55,0x55,0x59,0x4F,0x55,0x4F,0x9C,0x4F,0x9E,0x9F, \
marcozecchini	0:9fca2b23d0ba	183	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	184	0xB0,0xB1,0xB2,0xB3,0xB4,0x41,0x41,0x41,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	185	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0x41,0x41,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	186	0xD1,0xD1,0x45,0x45,0x45,0x49,0x49,0x49,0x49,0xD9,0xDA,0xDB,0xDC,0xDD,0x49,0xDF, \
marcozecchini	0:9fca2b23d0ba	187	0x4F,0xE1,0x4F,0x4F,0x4F,0x4F,0xE6,0xE8,0xE8,0x55,0x55,0x55,0x59,0x59,0xEE,0xEF, \
marcozecchini	0:9fca2b23d0ba	188	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	189
marcozecchini	0:9fca2b23d0ba	190	#elif _CODE_PAGE == 852 /* Latin 2 */
marcozecchini	0:9fca2b23d0ba	191	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	192	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	193	0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0xAC, \
marcozecchini	0:9fca2b23d0ba	194	0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	195	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
marcozecchini	0:9fca2b23d0ba	196	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	197	0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
marcozecchini	0:9fca2b23d0ba	198	0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF, \
marcozecchini	0:9fca2b23d0ba	199	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	200
marcozecchini	0:9fca2b23d0ba	201	#elif _CODE_PAGE == 855 /* Cyrillic */
marcozecchini	0:9fca2b23d0ba	202	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	203	#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F, \
marcozecchini	0:9fca2b23d0ba	204	0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
marcozecchini	0:9fca2b23d0ba	205	0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	206	0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	207	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	208	0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
marcozecchini	0:9fca2b23d0ba	209	0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF, \
marcozecchini	0:9fca2b23d0ba	210	0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	211
marcozecchini	0:9fca2b23d0ba	212	#elif _CODE_PAGE == 857 /* Turkish */
marcozecchini	0:9fca2b23d0ba	213	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	214	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x49,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	215	0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
marcozecchini	0:9fca2b23d0ba	216	0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	217	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	218	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	219	0xD0,0xD1,0xD2,0xD3,0xD4,0x49,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
marcozecchini	0:9fca2b23d0ba	220	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0xED,0xEE,0xEF, \
marcozecchini	0:9fca2b23d0ba	221	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	222
marcozecchini	0:9fca2b23d0ba	223	#elif _CODE_PAGE == 860 /* Portuguese */
marcozecchini	0:9fca2b23d0ba	224	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	225	#define _EXCVT {0x80,0x9A,0x90,0x8F,0x8E,0x91,0x86,0x80,0x89,0x89,0x92,0x8B,0x8C,0x98,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	226	0x90,0x91,0x92,0x8C,0x99,0xA9,0x96,0x9D,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
marcozecchini	0:9fca2b23d0ba	227	0x86,0x8B,0x9F,0x96,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	228	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	229	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	230	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
marcozecchini	0:9fca2b23d0ba	231	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
marcozecchini	0:9fca2b23d0ba	232	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	233
marcozecchini	0:9fca2b23d0ba	234	#elif _CODE_PAGE == 861 /* Icelandic */
marcozecchini	0:9fca2b23d0ba	235	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	236	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x8B,0x8B,0x8D,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	237	0x90,0x92,0x92,0x4F,0x99,0x8D,0x55,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
marcozecchini	0:9fca2b23d0ba	238	0xA4,0xA5,0xA6,0xA7,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	239	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	240	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	241	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
marcozecchini	0:9fca2b23d0ba	242	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
marcozecchini	0:9fca2b23d0ba	243	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	244
marcozecchini	0:9fca2b23d0ba	245	#elif _CODE_PAGE == 862 /* Hebrew */
marcozecchini	0:9fca2b23d0ba	246	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	247	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	248	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
marcozecchini	0:9fca2b23d0ba	249	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	250	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	251	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	252	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
marcozecchini	0:9fca2b23d0ba	253	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
marcozecchini	0:9fca2b23d0ba	254	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	255
marcozecchini	0:9fca2b23d0ba	256	#elif _CODE_PAGE == 863 /* Canadian-French */
marcozecchini	0:9fca2b23d0ba	257	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	258	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x41,0x8F, \
marcozecchini	0:9fca2b23d0ba	259	0x45,0x45,0x45,0x4F,0x45,0x49,0x55,0x55,0x98,0x4F,0x55,0x9B,0x9C,0x55,0x55,0x9F, \
marcozecchini	0:9fca2b23d0ba	260	0xA0,0xA1,0x4F,0x55,0xA4,0xA5,0xA6,0xA7,0x49,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	261	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	262	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	263	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
marcozecchini	0:9fca2b23d0ba	264	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
marcozecchini	0:9fca2b23d0ba	265	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	266
marcozecchini	0:9fca2b23d0ba	267	#elif _CODE_PAGE == 864 /* Arabic */
marcozecchini	0:9fca2b23d0ba	268	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	269	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	270	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
marcozecchini	0:9fca2b23d0ba	271	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	272	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	273	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	274	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
marcozecchini	0:9fca2b23d0ba	275	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
marcozecchini	0:9fca2b23d0ba	276	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	277
marcozecchini	0:9fca2b23d0ba	278	#elif _CODE_PAGE == 865 /* Nordic */
marcozecchini	0:9fca2b23d0ba	279	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	280	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	281	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
marcozecchini	0:9fca2b23d0ba	282	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	283	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	284	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	285	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
marcozecchini	0:9fca2b23d0ba	286	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
marcozecchini	0:9fca2b23d0ba	287	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	288
marcozecchini	0:9fca2b23d0ba	289	#elif _CODE_PAGE == 866 /* Russian */
marcozecchini	0:9fca2b23d0ba	290	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	291	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	292	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
marcozecchini	0:9fca2b23d0ba	293	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	294	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	295	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	296	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
marcozecchini	0:9fca2b23d0ba	297	0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
marcozecchini	0:9fca2b23d0ba	298	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	299
marcozecchini	0:9fca2b23d0ba	300	#elif _CODE_PAGE == 869 /* Greek 2 */
marcozecchini	0:9fca2b23d0ba	301	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	302	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
marcozecchini	0:9fca2b23d0ba	303	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x86,0x9C,0x8D,0x8F,0x90, \
marcozecchini	0:9fca2b23d0ba	304	0x91,0x90,0x92,0x95,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
marcozecchini	0:9fca2b23d0ba	305	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
marcozecchini	0:9fca2b23d0ba	306	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
marcozecchini	0:9fca2b23d0ba	307	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xA4,0xA5,0xA6,0xD9,0xDA,0xDB,0xDC,0xA7,0xA8,0xDF, \
marcozecchini	0:9fca2b23d0ba	308	0xA9,0xAA,0xAC,0xAD,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xCF,0xCF,0xD0,0xEF, \
marcozecchini	0:9fca2b23d0ba	309	0xF0,0xF1,0xD1,0xD2,0xD3,0xF5,0xD4,0xF7,0xF8,0xF9,0xD5,0x96,0x95,0x98,0xFE,0xFF}
marcozecchini	0:9fca2b23d0ba	310
marcozecchini	0:9fca2b23d0ba	311	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
marcozecchini	0:9fca2b23d0ba	312	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	313	#error Cannot use LFN feature without valid code page.
marcozecchini	0:9fca2b23d0ba	314	#endif
marcozecchini	0:9fca2b23d0ba	315	#define _DF1S 0
marcozecchini	0:9fca2b23d0ba	316
marcozecchini	0:9fca2b23d0ba	317	#else
marcozecchini	0:9fca2b23d0ba	318	#error Unknown code page
marcozecchini	0:9fca2b23d0ba	319
marcozecchini	0:9fca2b23d0ba	320	#endif
marcozecchini	0:9fca2b23d0ba	321
marcozecchini	0:9fca2b23d0ba	322
marcozecchini	0:9fca2b23d0ba	323	/* Character code support macros */
marcozecchini	0:9fca2b23d0ba	324	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
marcozecchini	0:9fca2b23d0ba	325	#define IsLower(c) (((c)>='a')&&((c)<='z'))
marcozecchini	0:9fca2b23d0ba	326	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
marcozecchini	0:9fca2b23d0ba	327
marcozecchini	0:9fca2b23d0ba	328	#if _DF1S /* Code page is DBCS */
marcozecchini	0:9fca2b23d0ba	329
marcozecchini	0:9fca2b23d0ba	330	#ifdef _DF2S /* Two 1st byte areas */
marcozecchini	0:9fca2b23d0ba	331	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
marcozecchini	0:9fca2b23d0ba	332	#else /* One 1st byte area */
marcozecchini	0:9fca2b23d0ba	333	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
marcozecchini	0:9fca2b23d0ba	334	#endif
marcozecchini	0:9fca2b23d0ba	335
marcozecchini	0:9fca2b23d0ba	336	#ifdef _DS3S /* Three 2nd byte areas */
marcozecchini	0:9fca2b23d0ba	337	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
marcozecchini	0:9fca2b23d0ba	338	#else /* Two 2nd byte areas */
marcozecchini	0:9fca2b23d0ba	339	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
marcozecchini	0:9fca2b23d0ba	340	#endif
marcozecchini	0:9fca2b23d0ba	341
marcozecchini	0:9fca2b23d0ba	342	#else /* Code page is SBCS */
marcozecchini	0:9fca2b23d0ba	343
marcozecchini	0:9fca2b23d0ba	344	#define IsDBCS1(c) 0
marcozecchini	0:9fca2b23d0ba	345	#define IsDBCS2(c) 0
marcozecchini	0:9fca2b23d0ba	346
marcozecchini	0:9fca2b23d0ba	347	#endif /* _DF1S */
marcozecchini	0:9fca2b23d0ba	348
marcozecchini	0:9fca2b23d0ba	349
marcozecchini	0:9fca2b23d0ba	350	/* Name status flags */
marcozecchini	0:9fca2b23d0ba	351	#define NSFLAG 11 /* Index of name status byte in fn[] */
marcozecchini	0:9fca2b23d0ba	352	#define NS_LOSS 0x01 /* Out of 8.3 format */
marcozecchini	0:9fca2b23d0ba	353	#define NS_LFN 0x02 /* Force to create LFN entry */
marcozecchini	0:9fca2b23d0ba	354	#define NS_LAST 0x04 /* Last segment */
marcozecchini	0:9fca2b23d0ba	355	#define NS_BODY 0x08 /* Lower case flag (body) */
marcozecchini	0:9fca2b23d0ba	356	#define NS_EXT 0x10 /* Lower case flag (ext) */
marcozecchini	0:9fca2b23d0ba	357	#define NS_DOT 0x20 /* Dot entry */
marcozecchini	0:9fca2b23d0ba	358
marcozecchini	0:9fca2b23d0ba	359
marcozecchini	0:9fca2b23d0ba	360	/* FAT sub-type boundaries (Differ from specs but correct for real DOS/Windows) */
marcozecchini	0:9fca2b23d0ba	361	#define MIN_FAT16 4086U /* Minimum number of clusters of FAT16 */
marcozecchini	0:9fca2b23d0ba	362	#define MIN_FAT32 65526U /* Minimum number of clusters of FAT32 */
marcozecchini	0:9fca2b23d0ba	363
marcozecchini	0:9fca2b23d0ba	364
marcozecchini	0:9fca2b23d0ba	365	/* FatFs refers the members in the FAT structures as byte array instead of
marcozecchini	0:9fca2b23d0ba	366	/ structure members because the structure is not binary compatible between
marcozecchini	0:9fca2b23d0ba	367	/ different platforms */
marcozecchini	0:9fca2b23d0ba	368
marcozecchini	0:9fca2b23d0ba	369	#define BS_jmpBoot 0 /* x86 jump instruction (3) */
marcozecchini	0:9fca2b23d0ba	370	#define BS_OEMName 3 /* OEM name (8) */
marcozecchini	0:9fca2b23d0ba	371	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
marcozecchini	0:9fca2b23d0ba	372	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
marcozecchini	0:9fca2b23d0ba	373	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
marcozecchini	0:9fca2b23d0ba	374	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
marcozecchini	0:9fca2b23d0ba	375	#define BPB_RootEntCnt 17 /* Number of root directory entries for FAT12/16 (2) */
marcozecchini	0:9fca2b23d0ba	376	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
marcozecchini	0:9fca2b23d0ba	377	#define BPB_Media 21 /* Media descriptor (1) */
marcozecchini	0:9fca2b23d0ba	378	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
marcozecchini	0:9fca2b23d0ba	379	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
marcozecchini	0:9fca2b23d0ba	380	#define BPB_NumHeads 26 /* Number of heads (2) */
marcozecchini	0:9fca2b23d0ba	381	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
marcozecchini	0:9fca2b23d0ba	382	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
marcozecchini	0:9fca2b23d0ba	383	#define BS_DrvNum 36 /* Physical drive number (1) */
marcozecchini	0:9fca2b23d0ba	384	#define BS_NTres 37 /* Error flag (1) */
marcozecchini	0:9fca2b23d0ba	385	#define BS_BootSig 38 /* Extended boot signature (1) */
marcozecchini	0:9fca2b23d0ba	386	#define BS_VolID 39 /* Volume serial number (4) */
marcozecchini	0:9fca2b23d0ba	387	#define BS_VolLab 43 /* Volume label (8) */
marcozecchini	0:9fca2b23d0ba	388	#define BS_FilSysType 54 /* File system type (1) */
marcozecchini	0:9fca2b23d0ba	389	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
marcozecchini	0:9fca2b23d0ba	390	#define BPB_ExtFlags 40 /* Extended flags (2) */
marcozecchini	0:9fca2b23d0ba	391	#define BPB_FSVer 42 /* File system version (2) */
marcozecchini	0:9fca2b23d0ba	392	#define BPB_RootClus 44 /* Root directory first cluster (4) */
marcozecchini	0:9fca2b23d0ba	393	#define BPB_FSInfo 48 /* Offset of FSINFO sector (2) */
marcozecchini	0:9fca2b23d0ba	394	#define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
marcozecchini	0:9fca2b23d0ba	395	#define BS_DrvNum32 64 /* Physical drive number (1) */
marcozecchini	0:9fca2b23d0ba	396	#define BS_NTres32 65 /* Error flag (1) */
marcozecchini	0:9fca2b23d0ba	397	#define BS_BootSig32 66 /* Extended boot signature (1) */
marcozecchini	0:9fca2b23d0ba	398	#define BS_VolID32 67 /* Volume serial number (4) */
marcozecchini	0:9fca2b23d0ba	399	#define BS_VolLab32 71 /* Volume label (8) */
marcozecchini	0:9fca2b23d0ba	400	#define BS_FilSysType32 82 /* File system type (1) */
marcozecchini	0:9fca2b23d0ba	401	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
marcozecchini	0:9fca2b23d0ba	402	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
marcozecchini	0:9fca2b23d0ba	403	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
marcozecchini	0:9fca2b23d0ba	404	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
marcozecchini	0:9fca2b23d0ba	405	#define MBR_Table 446 /* MBR: Partition table offset (2) */
marcozecchini	0:9fca2b23d0ba	406	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
marcozecchini	0:9fca2b23d0ba	407	#define BS_55AA 510 /* Signature word (2) */
marcozecchini	0:9fca2b23d0ba	408
marcozecchini	0:9fca2b23d0ba	409	#define DIR_Name 0 /* Short file name (11) */
marcozecchini	0:9fca2b23d0ba	410	#define DIR_Attr 11 /* Attribute (1) */
marcozecchini	0:9fca2b23d0ba	411	#define DIR_NTres 12 /* Lower case flag (1) */
marcozecchini	0:9fca2b23d0ba	412	#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
marcozecchini	0:9fca2b23d0ba	413	#define DIR_CrtTime 14 /* Created time (2) */
marcozecchini	0:9fca2b23d0ba	414	#define DIR_CrtDate 16 /* Created date (2) */
marcozecchini	0:9fca2b23d0ba	415	#define DIR_LstAccDate 18 /* Last accessed date (2) */
marcozecchini	0:9fca2b23d0ba	416	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
marcozecchini	0:9fca2b23d0ba	417	#define DIR_WrtTime 22 /* Modified time (2) */
marcozecchini	0:9fca2b23d0ba	418	#define DIR_WrtDate 24 /* Modified date (2) */
marcozecchini	0:9fca2b23d0ba	419	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
marcozecchini	0:9fca2b23d0ba	420	#define DIR_FileSize 28 /* File size (4) */
marcozecchini	0:9fca2b23d0ba	421	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
marcozecchini	0:9fca2b23d0ba	422	#define LDIR_Attr 11 /* LFN attribute (1) */
marcozecchini	0:9fca2b23d0ba	423	#define LDIR_Type 12 /* LFN type (1) */
marcozecchini	0:9fca2b23d0ba	424	#define LDIR_Chksum 13 /* Checksum of corresponding SFN entry */
marcozecchini	0:9fca2b23d0ba	425	#define LDIR_FstClusLO 26 /* Must be zero (0) */
marcozecchini	0:9fca2b23d0ba	426	#define SZ_DIRE 32 /* Size of a directory entry */
marcozecchini	0:9fca2b23d0ba	427	#define LLEF 0x40 /* Last long entry flag in LDIR_Ord */
marcozecchini	0:9fca2b23d0ba	428	#define DDEM 0xE5 /* Deleted directory entry mark at DIR_Name[0] */
marcozecchini	0:9fca2b23d0ba	429	#define RDDEM 0x05 /* Replacement of the character collides with DDEM */
marcozecchini	0:9fca2b23d0ba	430
marcozecchini	0:9fca2b23d0ba	431
marcozecchini	0:9fca2b23d0ba	432
marcozecchini	0:9fca2b23d0ba	433
marcozecchini	0:9fca2b23d0ba	434	/*--------------------------------------------------------------------------
marcozecchini	0:9fca2b23d0ba	435
marcozecchini	0:9fca2b23d0ba	436	Module Private Work Area
marcozecchini	0:9fca2b23d0ba	437
marcozecchini	0:9fca2b23d0ba	438	---------------------------------------------------------------------------*/
marcozecchini	0:9fca2b23d0ba	439
marcozecchini	0:9fca2b23d0ba	440	/* Remark: Uninitialized variables with static duration are guaranteed
marcozecchini	0:9fca2b23d0ba	441	/ zero/null at start-up. If not, either the linker or start-up routine
marcozecchini	0:9fca2b23d0ba	442	/ being used is not compliance with ANSI-C standard.
marcozecchini	0:9fca2b23d0ba	443	*/
marcozecchini	0:9fca2b23d0ba	444
marcozecchini	0:9fca2b23d0ba	445	#if _VOLUMES < 1 \|\| _VOLUMES > 9
marcozecchini	0:9fca2b23d0ba	446	#error Wrong _VOLUMES setting
marcozecchini	0:9fca2b23d0ba	447	#endif
marcozecchini	0:9fca2b23d0ba	448	static FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
marcozecchini	0:9fca2b23d0ba	449	static WORD Fsid; /* File system mount ID */
marcozecchini	0:9fca2b23d0ba	450
marcozecchini	0:9fca2b23d0ba	451	#if _FS_RPATH && _VOLUMES >= 2
marcozecchini	0:9fca2b23d0ba	452	static BYTE CurrVol; /* Current drive */
marcozecchini	0:9fca2b23d0ba	453	#endif
marcozecchini	0:9fca2b23d0ba	454
marcozecchini	0:9fca2b23d0ba	455	#if _FS_LOCK
marcozecchini	0:9fca2b23d0ba	456	static FILESEM Files[_FS_LOCK]; /* Open object lock semaphores */
marcozecchini	0:9fca2b23d0ba	457	#endif
marcozecchini	0:9fca2b23d0ba	458
marcozecchini	0:9fca2b23d0ba	459	#if _USE_LFN == 0 /* Non LFN feature */
marcozecchini	0:9fca2b23d0ba	460	#define DEFINE_NAMEBUF BYTE sfn[12]
marcozecchini	0:9fca2b23d0ba	461	#define INIT_BUF(dobj) (dobj).fn = sfn
marcozecchini	0:9fca2b23d0ba	462	#define FREE_BUF()
marcozecchini	0:9fca2b23d0ba	463	#else
marcozecchini	0:9fca2b23d0ba	464	#if _MAX_LFN < 12 \|\| _MAX_LFN > 255
marcozecchini	0:9fca2b23d0ba	465	#error Wrong _MAX_LFN setting
marcozecchini	0:9fca2b23d0ba	466	#endif
marcozecchini	0:9fca2b23d0ba	467	#if _USE_LFN == 1 /* LFN feature with static working buffer */
marcozecchini	0:9fca2b23d0ba	468	static WCHAR LfnBuf[_MAX_LFN + 1];
marcozecchini	0:9fca2b23d0ba	469	#define DEFINE_NAMEBUF BYTE sfn[12]
marcozecchini	0:9fca2b23d0ba	470	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
marcozecchini	0:9fca2b23d0ba	471	#define FREE_BUF()
marcozecchini	0:9fca2b23d0ba	472	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
marcozecchini	0:9fca2b23d0ba	473	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN + 1]
marcozecchini	0:9fca2b23d0ba	474	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
marcozecchini	0:9fca2b23d0ba	475	#define FREE_BUF()
marcozecchini	0:9fca2b23d0ba	476	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
marcozecchini	0:9fca2b23d0ba	477	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR *lfn
marcozecchini	0:9fca2b23d0ba	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; }
marcozecchini	0:9fca2b23d0ba	479	#define FREE_BUF() ff_memfree(lfn)
marcozecchini	0:9fca2b23d0ba	480	#else
marcozecchini	0:9fca2b23d0ba	481	#error Wrong _USE_LFN setting
marcozecchini	0:9fca2b23d0ba	482	#endif
marcozecchini	0:9fca2b23d0ba	483	#endif
marcozecchini	0:9fca2b23d0ba	484
marcozecchini	0:9fca2b23d0ba	485	#ifdef _EXCVT
marcozecchini	0:9fca2b23d0ba	486	static const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for SBCS extended characters */
marcozecchini	0:9fca2b23d0ba	487	#endif
marcozecchini	0:9fca2b23d0ba	488
marcozecchini	0:9fca2b23d0ba	489
marcozecchini	0:9fca2b23d0ba	490
marcozecchini	0:9fca2b23d0ba	491
marcozecchini	0:9fca2b23d0ba	492
marcozecchini	0:9fca2b23d0ba	493
marcozecchini	0:9fca2b23d0ba	494	/*--------------------------------------------------------------------------
marcozecchini	0:9fca2b23d0ba	495
marcozecchini	0:9fca2b23d0ba	496	Module Private Functions
marcozecchini	0:9fca2b23d0ba	497
marcozecchini	0:9fca2b23d0ba	498	---------------------------------------------------------------------------*/
marcozecchini	0:9fca2b23d0ba	499
marcozecchini	0:9fca2b23d0ba	500
marcozecchini	0:9fca2b23d0ba	501	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	502	/* String functions */
marcozecchini	0:9fca2b23d0ba	503	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	504
marcozecchini	0:9fca2b23d0ba	505	/* Copy memory to memory */
marcozecchini	0:9fca2b23d0ba	506	static
marcozecchini	0:9fca2b23d0ba	507	void mem_cpy (void* dst, const void* src, UINT cnt) {
marcozecchini	0:9fca2b23d0ba	508	BYTE d = (BYTE)dst;
marcozecchini	0:9fca2b23d0ba	509	const BYTE s = (const BYTE)src;
marcozecchini	0:9fca2b23d0ba	510
marcozecchini	0:9fca2b23d0ba	511	#if _WORD_ACCESS == 1
marcozecchini	0:9fca2b23d0ba	512	while (cnt >= sizeof (int)) {
marcozecchini	0:9fca2b23d0ba	513	(int)d = (int)s;
marcozecchini	0:9fca2b23d0ba	514	d += sizeof (int); s += sizeof (int);
marcozecchini	0:9fca2b23d0ba	515	cnt -= sizeof (int);
marcozecchini	0:9fca2b23d0ba	516	}
marcozecchini	0:9fca2b23d0ba	517	#endif
marcozecchini	0:9fca2b23d0ba	518	while (cnt--)
marcozecchini	0:9fca2b23d0ba	519	d++ = s++;
marcozecchini	0:9fca2b23d0ba	520	}
marcozecchini	0:9fca2b23d0ba	521
marcozecchini	0:9fca2b23d0ba	522	/* Fill memory */
marcozecchini	0:9fca2b23d0ba	523	static
marcozecchini	0:9fca2b23d0ba	524	void mem_set (void* dst, int val, UINT cnt) {
marcozecchini	0:9fca2b23d0ba	525	BYTE d = (BYTE)dst;
marcozecchini	0:9fca2b23d0ba	526
marcozecchini	0:9fca2b23d0ba	527	while (cnt--)
marcozecchini	0:9fca2b23d0ba	528	*d++ = (BYTE)val;
marcozecchini	0:9fca2b23d0ba	529	}
marcozecchini	0:9fca2b23d0ba	530
marcozecchini	0:9fca2b23d0ba	531	/* Compare memory to memory */
marcozecchini	0:9fca2b23d0ba	532	static
marcozecchini	0:9fca2b23d0ba	533	int mem_cmp (const void* dst, const void* src, UINT cnt) {
marcozecchini	0:9fca2b23d0ba	534	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
marcozecchini	0:9fca2b23d0ba	535	int r = 0;
marcozecchini	0:9fca2b23d0ba	536
marcozecchini	0:9fca2b23d0ba	537	while (cnt-- && (r = d++ - s++) == 0) ;
marcozecchini	0:9fca2b23d0ba	538	return r;
marcozecchini	0:9fca2b23d0ba	539	}
marcozecchini	0:9fca2b23d0ba	540
marcozecchini	0:9fca2b23d0ba	541	/* Check if chr is contained in the string */
marcozecchini	0:9fca2b23d0ba	542	static
marcozecchini	0:9fca2b23d0ba	543	int chk_chr (const char* str, int chr) {
marcozecchini	0:9fca2b23d0ba	544	while (str && str != chr) str++;
marcozecchini	0:9fca2b23d0ba	545	return *str;
marcozecchini	0:9fca2b23d0ba	546	}
marcozecchini	0:9fca2b23d0ba	547
marcozecchini	0:9fca2b23d0ba	548
marcozecchini	0:9fca2b23d0ba	549
marcozecchini	0:9fca2b23d0ba	550
marcozecchini	0:9fca2b23d0ba	551	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	552	/* Request/Release grant to access the volume */
marcozecchini	0:9fca2b23d0ba	553	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	554	#if _FS_REENTRANT
marcozecchini	0:9fca2b23d0ba	555	static
marcozecchini	0:9fca2b23d0ba	556	int lock_fs (
marcozecchini	0:9fca2b23d0ba	557	FATFS* fs /* File system object */
marcozecchini	0:9fca2b23d0ba	558	)
marcozecchini	0:9fca2b23d0ba	559	{
marcozecchini	0:9fca2b23d0ba	560	return ff_req_grant(fs->sobj);
marcozecchini	0:9fca2b23d0ba	561	}
marcozecchini	0:9fca2b23d0ba	562
marcozecchini	0:9fca2b23d0ba	563
marcozecchini	0:9fca2b23d0ba	564	static
marcozecchini	0:9fca2b23d0ba	565	void unlock_fs (
marcozecchini	0:9fca2b23d0ba	566	FATFS* fs, /* File system object */
marcozecchini	0:9fca2b23d0ba	567	FRESULT res /* Result code to be returned */
marcozecchini	0:9fca2b23d0ba	568	)
marcozecchini	0:9fca2b23d0ba	569	{
marcozecchini	0:9fca2b23d0ba	570	if (fs &&
marcozecchini	0:9fca2b23d0ba	571	res != FR_NOT_ENABLED &&
marcozecchini	0:9fca2b23d0ba	572	res != FR_INVALID_DRIVE &&
marcozecchini	0:9fca2b23d0ba	573	res != FR_INVALID_OBJECT &&
marcozecchini	0:9fca2b23d0ba	574	res != FR_TIMEOUT) {
marcozecchini	0:9fca2b23d0ba	575	ff_rel_grant(fs->sobj);
marcozecchini	0:9fca2b23d0ba	576	}
marcozecchini	0:9fca2b23d0ba	577	}
marcozecchini	0:9fca2b23d0ba	578	#endif
marcozecchini	0:9fca2b23d0ba	579
marcozecchini	0:9fca2b23d0ba	580
marcozecchini	0:9fca2b23d0ba	581
marcozecchini	0:9fca2b23d0ba	582
marcozecchini	0:9fca2b23d0ba	583	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	584	/* File lock control functions */
marcozecchini	0:9fca2b23d0ba	585	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	586	#if _FS_LOCK
marcozecchini	0:9fca2b23d0ba	587
marcozecchini	0:9fca2b23d0ba	588	static
marcozecchini	0:9fca2b23d0ba	589	FRESULT chk_lock ( /* Check if the file can be accessed */
marcozecchini	0:9fca2b23d0ba	590	FATFS_DIR* dp, /* Directory object pointing the file to be checked */
marcozecchini	0:9fca2b23d0ba	591	int acc /* Desired access type (0:Read, 1:Write, 2:Delete/Rename) */
marcozecchini	0:9fca2b23d0ba	592	)
marcozecchini	0:9fca2b23d0ba	593	{
marcozecchini	0:9fca2b23d0ba	594	UINT i, be;
marcozecchini	0:9fca2b23d0ba	595
marcozecchini	0:9fca2b23d0ba	596	/* Search file semaphore table */
marcozecchini	0:9fca2b23d0ba	597	for (i = be = 0; i < _FS_LOCK; i++) {
marcozecchini	0:9fca2b23d0ba	598	if (Files[i].fs) { /* Existing entry */
marcozecchini	0:9fca2b23d0ba	599	if (Files[i].fs == dp->fs && /* Check if the object matched with an open object */
marcozecchini	0:9fca2b23d0ba	600	Files[i].clu == dp->sclust &&
marcozecchini	0:9fca2b23d0ba	601	Files[i].idx == dp->index) break;
marcozecchini	0:9fca2b23d0ba	602	} else { /* Blank entry */
marcozecchini	0:9fca2b23d0ba	603	be = 1;
marcozecchini	0:9fca2b23d0ba	604	}
marcozecchini	0:9fca2b23d0ba	605	}
marcozecchini	0:9fca2b23d0ba	606	if (i == _FS_LOCK) /* The object is not opened */
marcozecchini	0:9fca2b23d0ba	607	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new object? */
marcozecchini	0:9fca2b23d0ba	608
marcozecchini	0:9fca2b23d0ba	609	/* The object has been opened. Reject any open against writing file and all write mode open */
marcozecchini	0:9fca2b23d0ba	610	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
marcozecchini	0:9fca2b23d0ba	611	}
marcozecchini	0:9fca2b23d0ba	612
marcozecchini	0:9fca2b23d0ba	613
marcozecchini	0:9fca2b23d0ba	614	static
marcozecchini	0:9fca2b23d0ba	615	int enq_lock (void) /* Check if an entry is available for a new object */
marcozecchini	0:9fca2b23d0ba	616	{
marcozecchini	0:9fca2b23d0ba	617	UINT i;
marcozecchini	0:9fca2b23d0ba	618
marcozecchini	0:9fca2b23d0ba	619	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
marcozecchini	0:9fca2b23d0ba	620	return (i == _FS_LOCK) ? 0 : 1;
marcozecchini	0:9fca2b23d0ba	621	}
marcozecchini	0:9fca2b23d0ba	622
marcozecchini	0:9fca2b23d0ba	623
marcozecchini	0:9fca2b23d0ba	624	static
marcozecchini	0:9fca2b23d0ba	625	UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */
marcozecchini	0:9fca2b23d0ba	626	FATFS_DIR* dp, /* Directory object pointing the file to register or increment */
marcozecchini	0:9fca2b23d0ba	627	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
marcozecchini	0:9fca2b23d0ba	628	)
marcozecchini	0:9fca2b23d0ba	629	{
marcozecchini	0:9fca2b23d0ba	630	UINT i;
marcozecchini	0:9fca2b23d0ba	631
marcozecchini	0:9fca2b23d0ba	632
marcozecchini	0:9fca2b23d0ba	633	for (i = 0; i < _FS_LOCK; i++) { /* Find the object */
marcozecchini	0:9fca2b23d0ba	634	if (Files[i].fs == dp->fs &&
marcozecchini	0:9fca2b23d0ba	635	Files[i].clu == dp->sclust &&
marcozecchini	0:9fca2b23d0ba	636	Files[i].idx == dp->index) break;
marcozecchini	0:9fca2b23d0ba	637	}
marcozecchini	0:9fca2b23d0ba	638
marcozecchini	0:9fca2b23d0ba	639	if (i == _FS_LOCK) { /* Not opened. Register it as new. */
marcozecchini	0:9fca2b23d0ba	640	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
marcozecchini	0:9fca2b23d0ba	641	if (i == _FS_LOCK) return 0; /* No free entry to register (int err) */
marcozecchini	0:9fca2b23d0ba	642	Files[i].fs = dp->fs;
marcozecchini	0:9fca2b23d0ba	643	Files[i].clu = dp->sclust;
marcozecchini	0:9fca2b23d0ba	644	Files[i].idx = dp->index;
marcozecchini	0:9fca2b23d0ba	645	Files[i].ctr = 0;
marcozecchini	0:9fca2b23d0ba	646	}
marcozecchini	0:9fca2b23d0ba	647
marcozecchini	0:9fca2b23d0ba	648	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
marcozecchini	0:9fca2b23d0ba	649
marcozecchini	0:9fca2b23d0ba	650	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
marcozecchini	0:9fca2b23d0ba	651
marcozecchini	0:9fca2b23d0ba	652	return i + 1;
marcozecchini	0:9fca2b23d0ba	653	}
marcozecchini	0:9fca2b23d0ba	654
marcozecchini	0:9fca2b23d0ba	655
marcozecchini	0:9fca2b23d0ba	656	static
marcozecchini	0:9fca2b23d0ba	657	FRESULT dec_lock ( /* Decrement object open counter */
marcozecchini	0:9fca2b23d0ba	658	UINT i /* Semaphore index (1..) */
marcozecchini	0:9fca2b23d0ba	659	)
marcozecchini	0:9fca2b23d0ba	660	{
marcozecchini	0:9fca2b23d0ba	661	WORD n;
marcozecchini	0:9fca2b23d0ba	662	FRESULT res;
marcozecchini	0:9fca2b23d0ba	663
marcozecchini	0:9fca2b23d0ba	664
marcozecchini	0:9fca2b23d0ba	665	if (--i < _FS_LOCK) { /* Shift index number origin from 0 */
marcozecchini	0:9fca2b23d0ba	666	n = Files[i].ctr;
marcozecchini	0:9fca2b23d0ba	667	if (n == 0x100) n = 0; /* If write mode open, delete the entry */
marcozecchini	0:9fca2b23d0ba	668	if (n) n--; /* Decrement read mode open count */
marcozecchini	0:9fca2b23d0ba	669	Files[i].ctr = n;
marcozecchini	0:9fca2b23d0ba	670	if (!n) Files[i].fs = 0; /* Delete the entry if open count gets zero */
marcozecchini	0:9fca2b23d0ba	671	res = FR_OK;
marcozecchini	0:9fca2b23d0ba	672	} else {
marcozecchini	0:9fca2b23d0ba	673	res = FR_INT_ERR; /* Invalid index nunber */
marcozecchini	0:9fca2b23d0ba	674	}
marcozecchini	0:9fca2b23d0ba	675	return res;
marcozecchini	0:9fca2b23d0ba	676	}
marcozecchini	0:9fca2b23d0ba	677
marcozecchini	0:9fca2b23d0ba	678
marcozecchini	0:9fca2b23d0ba	679	static
marcozecchini	0:9fca2b23d0ba	680	void clear_lock ( /* Clear lock entries of the volume */
marcozecchini	0:9fca2b23d0ba	681	FATFS *fs
marcozecchini	0:9fca2b23d0ba	682	)
marcozecchini	0:9fca2b23d0ba	683	{
marcozecchini	0:9fca2b23d0ba	684	UINT i;
marcozecchini	0:9fca2b23d0ba	685
marcozecchini	0:9fca2b23d0ba	686	for (i = 0; i < _FS_LOCK; i++) {
marcozecchini	0:9fca2b23d0ba	687	if (Files[i].fs == fs) Files[i].fs = 0;
marcozecchini	0:9fca2b23d0ba	688	}
marcozecchini	0:9fca2b23d0ba	689	}
marcozecchini	0:9fca2b23d0ba	690	#endif
marcozecchini	0:9fca2b23d0ba	691
marcozecchini	0:9fca2b23d0ba	692
marcozecchini	0:9fca2b23d0ba	693
marcozecchini	0:9fca2b23d0ba	694
marcozecchini	0:9fca2b23d0ba	695	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	696	/* Move/Flush disk access window in the file system object */
marcozecchini	0:9fca2b23d0ba	697	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	698	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	699	static
marcozecchini	0:9fca2b23d0ba	700	FRESULT sync_window ( /* FR_OK:succeeded, !=0:error */
marcozecchini	0:9fca2b23d0ba	701	FATFS* fs /* File system object */
marcozecchini	0:9fca2b23d0ba	702	)
marcozecchini	0:9fca2b23d0ba	703	{
marcozecchini	0:9fca2b23d0ba	704	DWORD wsect;
marcozecchini	0:9fca2b23d0ba	705	UINT nf;
marcozecchini	0:9fca2b23d0ba	706	FRESULT res = FR_OK;
marcozecchini	0:9fca2b23d0ba	707
marcozecchini	0:9fca2b23d0ba	708
marcozecchini	0:9fca2b23d0ba	709	if (fs->wflag) { /* Write back the sector if it is dirty */
marcozecchini	0:9fca2b23d0ba	710	wsect = fs->winsect; /* Current sector number */
marcozecchini	0:9fca2b23d0ba	711	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK) {
marcozecchini	0:9fca2b23d0ba	712	res = FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	713	} else {
marcozecchini	0:9fca2b23d0ba	714	fs->wflag = 0;
marcozecchini	0:9fca2b23d0ba	715	if (wsect - fs->fatbase < fs->fsize) { /* Is it in the FAT area? */
marcozecchini	0:9fca2b23d0ba	716	for (nf = fs->n_fats; nf >= 2; nf--) { /* Reflect the change to all FAT copies */
marcozecchini	0:9fca2b23d0ba	717	wsect += fs->fsize;
marcozecchini	0:9fca2b23d0ba	718	disk_write(fs->drv, fs->win, wsect, 1);
marcozecchini	0:9fca2b23d0ba	719	}
marcozecchini	0:9fca2b23d0ba	720	}
marcozecchini	0:9fca2b23d0ba	721	}
marcozecchini	0:9fca2b23d0ba	722	}
marcozecchini	0:9fca2b23d0ba	723	return res;
marcozecchini	0:9fca2b23d0ba	724	}
marcozecchini	0:9fca2b23d0ba	725	#endif
marcozecchini	0:9fca2b23d0ba	726
marcozecchini	0:9fca2b23d0ba	727
marcozecchini	0:9fca2b23d0ba	728	static
marcozecchini	0:9fca2b23d0ba	729	FRESULT move_window ( /* FR_OK(0):succeeded, !=0:error */
marcozecchini	0:9fca2b23d0ba	730	FATFS* fs, /* File system object */
marcozecchini	0:9fca2b23d0ba	731	DWORD sector /* Sector number to make appearance in the fs->win[] */
marcozecchini	0:9fca2b23d0ba	732	)
marcozecchini	0:9fca2b23d0ba	733	{
marcozecchini	0:9fca2b23d0ba	734	FRESULT res = FR_OK;
marcozecchini	0:9fca2b23d0ba	735
marcozecchini	0:9fca2b23d0ba	736
marcozecchini	0:9fca2b23d0ba	737	if (sector != fs->winsect) { /* Window offset changed? */
marcozecchini	0:9fca2b23d0ba	738	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	739	res = sync_window(fs); /* Write-back changes */
marcozecchini	0:9fca2b23d0ba	740	#endif
marcozecchini	0:9fca2b23d0ba	741	if (res == FR_OK) { /* Fill sector window with new data */
marcozecchini	0:9fca2b23d0ba	742	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK) {
marcozecchini	0:9fca2b23d0ba	743	sector = 0xFFFFFFFF; /* Invalidate window if data is not reliable */
marcozecchini	0:9fca2b23d0ba	744	res = FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	745	}
marcozecchini	0:9fca2b23d0ba	746	fs->winsect = sector;
marcozecchini	0:9fca2b23d0ba	747	}
marcozecchini	0:9fca2b23d0ba	748	}
marcozecchini	0:9fca2b23d0ba	749	return res;
marcozecchini	0:9fca2b23d0ba	750	}
marcozecchini	0:9fca2b23d0ba	751
marcozecchini	0:9fca2b23d0ba	752
marcozecchini	0:9fca2b23d0ba	753
marcozecchini	0:9fca2b23d0ba	754
marcozecchini	0:9fca2b23d0ba	755	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	756	/* Synchronize file system and strage device */
marcozecchini	0:9fca2b23d0ba	757	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	758	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	759	static
marcozecchini	0:9fca2b23d0ba	760	FRESULT sync_fs ( /* FR_OK:succeeded, !=0:error */
marcozecchini	0:9fca2b23d0ba	761	FATFS* fs /* File system object */
marcozecchini	0:9fca2b23d0ba	762	)
marcozecchini	0:9fca2b23d0ba	763	{
marcozecchini	0:9fca2b23d0ba	764	FRESULT res;
marcozecchini	0:9fca2b23d0ba	765
marcozecchini	0:9fca2b23d0ba	766
marcozecchini	0:9fca2b23d0ba	767	res = sync_window(fs);
marcozecchini	0:9fca2b23d0ba	768	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	769	/* Update FSInfo sector if needed */
marcozecchini	0:9fca2b23d0ba	770	if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) {
marcozecchini	0:9fca2b23d0ba	771	/* Create FSInfo structure */
marcozecchini	0:9fca2b23d0ba	772	mem_set(fs->win, 0, SS(fs));
marcozecchini	0:9fca2b23d0ba	773	ST_WORD(fs->win + BS_55AA, 0xAA55);
marcozecchini	0:9fca2b23d0ba	774	ST_DWORD(fs->win + FSI_LeadSig, 0x41615252);
marcozecchini	0:9fca2b23d0ba	775	ST_DWORD(fs->win + FSI_StrucSig, 0x61417272);
marcozecchini	0:9fca2b23d0ba	776	ST_DWORD(fs->win + FSI_Free_Count, fs->free_clust);
marcozecchini	0:9fca2b23d0ba	777	ST_DWORD(fs->win + FSI_Nxt_Free, fs->last_clust);
marcozecchini	0:9fca2b23d0ba	778	/* Write it into the FSInfo sector */
marcozecchini	0:9fca2b23d0ba	779	fs->winsect = fs->volbase + 1;
marcozecchini	0:9fca2b23d0ba	780	disk_write(fs->drv, fs->win, fs->winsect, 1);
marcozecchini	0:9fca2b23d0ba	781	fs->fsi_flag = 0;
marcozecchini	0:9fca2b23d0ba	782	}
marcozecchini	0:9fca2b23d0ba	783	/* Make sure that no pending write process in the physical drive */
marcozecchini	0:9fca2b23d0ba	784	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
marcozecchini	0:9fca2b23d0ba	785	res = FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	786	}
marcozecchini	0:9fca2b23d0ba	787
marcozecchini	0:9fca2b23d0ba	788	return res;
marcozecchini	0:9fca2b23d0ba	789	}
marcozecchini	0:9fca2b23d0ba	790	#endif
marcozecchini	0:9fca2b23d0ba	791
marcozecchini	0:9fca2b23d0ba	792
marcozecchini	0:9fca2b23d0ba	793
marcozecchini	0:9fca2b23d0ba	794
marcozecchini	0:9fca2b23d0ba	795	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	796	/* Get sector# from cluster# */
marcozecchini	0:9fca2b23d0ba	797	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	798	/* Hidden API for hacks and disk tools */
marcozecchini	0:9fca2b23d0ba	799
marcozecchini	0:9fca2b23d0ba	800	DWORD clust2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */
marcozecchini	0:9fca2b23d0ba	801	FATFS* fs, /* File system object */
marcozecchini	0:9fca2b23d0ba	802	DWORD clst /* Cluster# to be converted */
marcozecchini	0:9fca2b23d0ba	803	)
marcozecchini	0:9fca2b23d0ba	804	{
marcozecchini	0:9fca2b23d0ba	805	clst -= 2;
marcozecchini	0:9fca2b23d0ba	806	if (clst >= fs->n_fatent - 2) return 0; /* Invalid cluster# */
marcozecchini	0:9fca2b23d0ba	807	return clst * fs->csize + fs->database;
marcozecchini	0:9fca2b23d0ba	808	}
marcozecchini	0:9fca2b23d0ba	809
marcozecchini	0:9fca2b23d0ba	810
marcozecchini	0:9fca2b23d0ba	811
marcozecchini	0:9fca2b23d0ba	812
marcozecchini	0:9fca2b23d0ba	813	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	814	/* FAT access - Read value of a FAT entry */
marcozecchini	0:9fca2b23d0ba	815	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	816	/* Hidden API for hacks and disk tools */
marcozecchini	0:9fca2b23d0ba	817
marcozecchini	0:9fca2b23d0ba	818	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluster status */
marcozecchini	0:9fca2b23d0ba	819	FATFS* fs, /* File system object */
marcozecchini	0:9fca2b23d0ba	820	DWORD clst /* FAT index number (cluster number) to get the value */
marcozecchini	0:9fca2b23d0ba	821	)
marcozecchini	0:9fca2b23d0ba	822	{
marcozecchini	0:9fca2b23d0ba	823	UINT wc, bc;
marcozecchini	0:9fca2b23d0ba	824	BYTE *p;
marcozecchini	0:9fca2b23d0ba	825	DWORD val;
marcozecchini	0:9fca2b23d0ba	826
marcozecchini	0:9fca2b23d0ba	827
marcozecchini	0:9fca2b23d0ba	828	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
marcozecchini	0:9fca2b23d0ba	829	val = 1; /* Internal error */
marcozecchini	0:9fca2b23d0ba	830
marcozecchini	0:9fca2b23d0ba	831	} else {
marcozecchini	0:9fca2b23d0ba	832	val = 0xFFFFFFFF; /* Default value falls on disk error */
marcozecchini	0:9fca2b23d0ba	833
marcozecchini	0:9fca2b23d0ba	834	switch (fs->fs_type) {
marcozecchini	0:9fca2b23d0ba	835	case FS_FAT12 :
marcozecchini	0:9fca2b23d0ba	836	bc = (UINT)clst; bc += bc / 2;
marcozecchini	0:9fca2b23d0ba	837	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	838	wc = fs->win[bc++ % SS(fs)];
marcozecchini	0:9fca2b23d0ba	839	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	840	wc \|= fs->win[bc % SS(fs)] << 8;
marcozecchini	0:9fca2b23d0ba	841	val = clst & 1 ? wc >> 4 : (wc & 0xFFF);
marcozecchini	0:9fca2b23d0ba	842	break;
marcozecchini	0:9fca2b23d0ba	843
marcozecchini	0:9fca2b23d0ba	844	case FS_FAT16 :
marcozecchini	0:9fca2b23d0ba	845	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	846	p = &fs->win[clst * 2 % SS(fs)];
marcozecchini	0:9fca2b23d0ba	847	val = LD_WORD(p);
marcozecchini	0:9fca2b23d0ba	848	break;
marcozecchini	0:9fca2b23d0ba	849
marcozecchini	0:9fca2b23d0ba	850	case FS_FAT32 :
marcozecchini	0:9fca2b23d0ba	851	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	852	p = &fs->win[clst * 4 % SS(fs)];
marcozecchini	0:9fca2b23d0ba	853	val = LD_DWORD(p) & 0x0FFFFFFF;
marcozecchini	0:9fca2b23d0ba	854	break;
marcozecchini	0:9fca2b23d0ba	855
marcozecchini	0:9fca2b23d0ba	856	default:
marcozecchini	0:9fca2b23d0ba	857	val = 1; /* Internal error */
marcozecchini	0:9fca2b23d0ba	858	}
marcozecchini	0:9fca2b23d0ba	859	}
marcozecchini	0:9fca2b23d0ba	860
marcozecchini	0:9fca2b23d0ba	861	return val;
marcozecchini	0:9fca2b23d0ba	862	}
marcozecchini	0:9fca2b23d0ba	863
marcozecchini	0:9fca2b23d0ba	864
marcozecchini	0:9fca2b23d0ba	865
marcozecchini	0:9fca2b23d0ba	866
marcozecchini	0:9fca2b23d0ba	867	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	868	/* FAT access - Change value of a FAT entry */
marcozecchini	0:9fca2b23d0ba	869	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	870	/* Hidden API for hacks and disk tools */
marcozecchini	0:9fca2b23d0ba	871
marcozecchini	0:9fca2b23d0ba	872	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	873	FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */
marcozecchini	0:9fca2b23d0ba	874	FATFS* fs, /* File system object */
marcozecchini	0:9fca2b23d0ba	875	DWORD clst, /* FAT index number (cluster number) to be changed */
marcozecchini	0:9fca2b23d0ba	876	DWORD val /* New value to be set to the entry */
marcozecchini	0:9fca2b23d0ba	877	)
marcozecchini	0:9fca2b23d0ba	878	{
marcozecchini	0:9fca2b23d0ba	879	UINT bc;
marcozecchini	0:9fca2b23d0ba	880	BYTE *p;
marcozecchini	0:9fca2b23d0ba	881	FRESULT res;
marcozecchini	0:9fca2b23d0ba	882
marcozecchini	0:9fca2b23d0ba	883
marcozecchini	0:9fca2b23d0ba	884	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
marcozecchini	0:9fca2b23d0ba	885	res = FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	886
marcozecchini	0:9fca2b23d0ba	887	} else {
marcozecchini	0:9fca2b23d0ba	888	switch (fs->fs_type) {
marcozecchini	0:9fca2b23d0ba	889	case FS_FAT12 :
marcozecchini	0:9fca2b23d0ba	890	bc = (UINT)clst; bc += bc / 2;
marcozecchini	0:9fca2b23d0ba	891	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
marcozecchini	0:9fca2b23d0ba	892	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	893	p = &fs->win[bc++ % SS(fs)];
marcozecchini	0:9fca2b23d0ba	894	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
marcozecchini	0:9fca2b23d0ba	895	fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	896	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
marcozecchini	0:9fca2b23d0ba	897	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	898	p = &fs->win[bc % SS(fs)];
marcozecchini	0:9fca2b23d0ba	899	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
marcozecchini	0:9fca2b23d0ba	900	fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	901	break;
marcozecchini	0:9fca2b23d0ba	902
marcozecchini	0:9fca2b23d0ba	903	case FS_FAT16 :
marcozecchini	0:9fca2b23d0ba	904	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
marcozecchini	0:9fca2b23d0ba	905	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	906	p = &fs->win[clst * 2 % SS(fs)];
marcozecchini	0:9fca2b23d0ba	907	ST_WORD(p, (WORD)val);
marcozecchini	0:9fca2b23d0ba	908	fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	909	break;
marcozecchini	0:9fca2b23d0ba	910
marcozecchini	0:9fca2b23d0ba	911	case FS_FAT32 :
marcozecchini	0:9fca2b23d0ba	912	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
marcozecchini	0:9fca2b23d0ba	913	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	914	p = &fs->win[clst * 4 % SS(fs)];
marcozecchini	0:9fca2b23d0ba	915	val \|= LD_DWORD(p) & 0xF0000000;
marcozecchini	0:9fca2b23d0ba	916	ST_DWORD(p, val);
marcozecchini	0:9fca2b23d0ba	917	fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	918	break;
marcozecchini	0:9fca2b23d0ba	919
marcozecchini	0:9fca2b23d0ba	920	default :
marcozecchini	0:9fca2b23d0ba	921	res = FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	922	}
marcozecchini	0:9fca2b23d0ba	923	}
marcozecchini	0:9fca2b23d0ba	924
marcozecchini	0:9fca2b23d0ba	925	return res;
marcozecchini	0:9fca2b23d0ba	926	}
marcozecchini	0:9fca2b23d0ba	927	#endif /* !_FS_READONLY */
marcozecchini	0:9fca2b23d0ba	928
marcozecchini	0:9fca2b23d0ba	929
marcozecchini	0:9fca2b23d0ba	930
marcozecchini	0:9fca2b23d0ba	931
marcozecchini	0:9fca2b23d0ba	932	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	933	/* FAT handling - Remove a cluster chain */
marcozecchini	0:9fca2b23d0ba	934	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	935	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	936	static
marcozecchini	0:9fca2b23d0ba	937	FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */
marcozecchini	0:9fca2b23d0ba	938	FATFS* fs, /* File system object */
marcozecchini	0:9fca2b23d0ba	939	DWORD clst /* Cluster# to remove a chain from */
marcozecchini	0:9fca2b23d0ba	940	)
marcozecchini	0:9fca2b23d0ba	941	{
marcozecchini	0:9fca2b23d0ba	942	FRESULT res;
marcozecchini	0:9fca2b23d0ba	943	DWORD nxt;
marcozecchini	0:9fca2b23d0ba	944	#if _USE_TRIM
marcozecchini	0:9fca2b23d0ba	945	DWORD scl = clst, ecl = clst, rt[2];
marcozecchini	0:9fca2b23d0ba	946	#endif
marcozecchini	0:9fca2b23d0ba	947
marcozecchini	0:9fca2b23d0ba	948	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
marcozecchini	0:9fca2b23d0ba	949	res = FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	950
marcozecchini	0:9fca2b23d0ba	951	} else {
marcozecchini	0:9fca2b23d0ba	952	res = FR_OK;
marcozecchini	0:9fca2b23d0ba	953	while (clst < fs->n_fatent) { /* Not a last link? */
marcozecchini	0:9fca2b23d0ba	954	nxt = get_fat(fs, clst); /* Get cluster status */
marcozecchini	0:9fca2b23d0ba	955	if (nxt == 0) break; /* Empty cluster? */
marcozecchini	0:9fca2b23d0ba	956	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
marcozecchini	0:9fca2b23d0ba	957	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
marcozecchini	0:9fca2b23d0ba	958	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
marcozecchini	0:9fca2b23d0ba	959	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	960	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSINFO */
marcozecchini	0:9fca2b23d0ba	961	fs->free_clust++;
marcozecchini	0:9fca2b23d0ba	962	fs->fsi_flag \|= 1;
marcozecchini	0:9fca2b23d0ba	963	}
marcozecchini	0:9fca2b23d0ba	964	#if _USE_TRIM
marcozecchini	0:9fca2b23d0ba	965	if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
marcozecchini	0:9fca2b23d0ba	966	ecl = nxt;
marcozecchini	0:9fca2b23d0ba	967	} else { /* End of contiguous clusters */
marcozecchini	0:9fca2b23d0ba	968	rt[0] = clust2sect(fs, scl); /* Start sector */
marcozecchini	0:9fca2b23d0ba	969	rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
marcozecchini	0:9fca2b23d0ba	970	disk_ioctl(fs->drv, CTRL_TRIM, rt); /* Erase the block */
marcozecchini	0:9fca2b23d0ba	971	scl = ecl = nxt;
marcozecchini	0:9fca2b23d0ba	972	}
marcozecchini	0:9fca2b23d0ba	973	#endif
marcozecchini	0:9fca2b23d0ba	974	clst = nxt; /* Next cluster */
marcozecchini	0:9fca2b23d0ba	975	}
marcozecchini	0:9fca2b23d0ba	976	}
marcozecchini	0:9fca2b23d0ba	977
marcozecchini	0:9fca2b23d0ba	978	return res;
marcozecchini	0:9fca2b23d0ba	979	}
marcozecchini	0:9fca2b23d0ba	980	#endif
marcozecchini	0:9fca2b23d0ba	981
marcozecchini	0:9fca2b23d0ba	982
marcozecchini	0:9fca2b23d0ba	983
marcozecchini	0:9fca2b23d0ba	984
marcozecchini	0:9fca2b23d0ba	985	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	986	/* FAT handling - Stretch or Create a cluster chain */
marcozecchini	0:9fca2b23d0ba	987	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	988	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	989	static
marcozecchini	0:9fca2b23d0ba	990	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
marcozecchini	0:9fca2b23d0ba	991	FATFS* fs, /* File system object */
marcozecchini	0:9fca2b23d0ba	992	DWORD clst /* Cluster# to stretch, 0:Create a new chain */
marcozecchini	0:9fca2b23d0ba	993	)
marcozecchini	0:9fca2b23d0ba	994	{
marcozecchini	0:9fca2b23d0ba	995	DWORD cs, ncl, scl;
marcozecchini	0:9fca2b23d0ba	996	FRESULT res;
marcozecchini	0:9fca2b23d0ba	997
marcozecchini	0:9fca2b23d0ba	998
marcozecchini	0:9fca2b23d0ba	999	if (clst == 0) { /* Create a new chain */
marcozecchini	0:9fca2b23d0ba	1000	scl = fs->last_clust; /* Get suggested start point */
marcozecchini	0:9fca2b23d0ba	1001	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
marcozecchini	0:9fca2b23d0ba	1002	}
marcozecchini	0:9fca2b23d0ba	1003	else { /* Stretch the current chain */
marcozecchini	0:9fca2b23d0ba	1004	cs = get_fat(fs, clst); /* Check the cluster status */
marcozecchini	0:9fca2b23d0ba	1005	if (cs < 2) return 1; /* Invalid value */
marcozecchini	0:9fca2b23d0ba	1006	if (cs == 0xFFFFFFFF) return cs; /* A disk error occurred */
marcozecchini	0:9fca2b23d0ba	1007	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
marcozecchini	0:9fca2b23d0ba	1008	scl = clst;
marcozecchini	0:9fca2b23d0ba	1009	}
marcozecchini	0:9fca2b23d0ba	1010
marcozecchini	0:9fca2b23d0ba	1011	ncl = scl; /* Start cluster */
marcozecchini	0:9fca2b23d0ba	1012	for (;;) {
marcozecchini	0:9fca2b23d0ba	1013	ncl++; /* Next cluster */
marcozecchini	0:9fca2b23d0ba	1014	if (ncl >= fs->n_fatent) { /* Check wrap around */
marcozecchini	0:9fca2b23d0ba	1015	ncl = 2;
marcozecchini	0:9fca2b23d0ba	1016	if (ncl > scl) return 0; /* No free cluster */
marcozecchini	0:9fca2b23d0ba	1017	}
marcozecchini	0:9fca2b23d0ba	1018	cs = get_fat(fs, ncl); /* Get the cluster status */
marcozecchini	0:9fca2b23d0ba	1019	if (cs == 0) break; /* Found a free cluster */
marcozecchini	0:9fca2b23d0ba	1020	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
marcozecchini	0:9fca2b23d0ba	1021	return cs;
marcozecchini	0:9fca2b23d0ba	1022	if (ncl == scl) return 0; /* No free cluster */
marcozecchini	0:9fca2b23d0ba	1023	}
marcozecchini	0:9fca2b23d0ba	1024
marcozecchini	0:9fca2b23d0ba	1025	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
marcozecchini	0:9fca2b23d0ba	1026	if (res == FR_OK && clst != 0) {
marcozecchini	0:9fca2b23d0ba	1027	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
marcozecchini	0:9fca2b23d0ba	1028	}
marcozecchini	0:9fca2b23d0ba	1029	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	1030	fs->last_clust = ncl; /* Update FSINFO */
marcozecchini	0:9fca2b23d0ba	1031	if (fs->free_clust != 0xFFFFFFFF) {
marcozecchini	0:9fca2b23d0ba	1032	fs->free_clust--;
marcozecchini	0:9fca2b23d0ba	1033	fs->fsi_flag \|= 1;
marcozecchini	0:9fca2b23d0ba	1034	}
marcozecchini	0:9fca2b23d0ba	1035	} else {
marcozecchini	0:9fca2b23d0ba	1036	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
marcozecchini	0:9fca2b23d0ba	1037	}
marcozecchini	0:9fca2b23d0ba	1038
marcozecchini	0:9fca2b23d0ba	1039	return ncl; /* Return new cluster number or error code */
marcozecchini	0:9fca2b23d0ba	1040	}
marcozecchini	0:9fca2b23d0ba	1041	#endif /* !_FS_READONLY */
marcozecchini	0:9fca2b23d0ba	1042
marcozecchini	0:9fca2b23d0ba	1043
marcozecchini	0:9fca2b23d0ba	1044
marcozecchini	0:9fca2b23d0ba	1045
marcozecchini	0:9fca2b23d0ba	1046	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1047	/* FAT handling - Convert offset into cluster with link map table */
marcozecchini	0:9fca2b23d0ba	1048	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1049
marcozecchini	0:9fca2b23d0ba	1050	#if _USE_FASTSEEK
marcozecchini	0:9fca2b23d0ba	1051	static
marcozecchini	0:9fca2b23d0ba	1052	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
marcozecchini	0:9fca2b23d0ba	1053	FIL* fp, /* Pointer to the file object */
marcozecchini	0:9fca2b23d0ba	1054	DWORD ofs /* File offset to be converted to cluster# */
marcozecchini	0:9fca2b23d0ba	1055	)
marcozecchini	0:9fca2b23d0ba	1056	{
marcozecchini	0:9fca2b23d0ba	1057	DWORD cl, ncl, *tbl;
marcozecchini	0:9fca2b23d0ba	1058
marcozecchini	0:9fca2b23d0ba	1059
marcozecchini	0:9fca2b23d0ba	1060	tbl = fp->cltbl + 1; /* Top of CLMT */
marcozecchini	0:9fca2b23d0ba	1061	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
marcozecchini	0:9fca2b23d0ba	1062	for (;;) {
marcozecchini	0:9fca2b23d0ba	1063	ncl = tbl++; / Number of cluters in the fragment */
marcozecchini	0:9fca2b23d0ba	1064	if (!ncl) return 0; /* End of table? (error) */
marcozecchini	0:9fca2b23d0ba	1065	if (cl < ncl) break; /* In this fragment? */
marcozecchini	0:9fca2b23d0ba	1066	cl -= ncl; tbl++; /* Next fragment */
marcozecchini	0:9fca2b23d0ba	1067	}
marcozecchini	0:9fca2b23d0ba	1068	return cl + tbl; / Return the cluster number */
marcozecchini	0:9fca2b23d0ba	1069	}
marcozecchini	0:9fca2b23d0ba	1070	#endif /* _USE_FASTSEEK */
marcozecchini	0:9fca2b23d0ba	1071
marcozecchini	0:9fca2b23d0ba	1072
marcozecchini	0:9fca2b23d0ba	1073
marcozecchini	0:9fca2b23d0ba	1074
marcozecchini	0:9fca2b23d0ba	1075	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1076	/* Directory handling - Set directory index */
marcozecchini	0:9fca2b23d0ba	1077	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1078
marcozecchini	0:9fca2b23d0ba	1079	static
marcozecchini	0:9fca2b23d0ba	1080	FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */
marcozecchini	0:9fca2b23d0ba	1081	FATFS_DIR* dp, /* Pointer to directory object */
marcozecchini	0:9fca2b23d0ba	1082	UINT idx /* Index of directory table */
marcozecchini	0:9fca2b23d0ba	1083	)
marcozecchini	0:9fca2b23d0ba	1084	{
marcozecchini	0:9fca2b23d0ba	1085	DWORD clst, sect;
marcozecchini	0:9fca2b23d0ba	1086	UINT ic;
marcozecchini	0:9fca2b23d0ba	1087
marcozecchini	0:9fca2b23d0ba	1088
marcozecchini	0:9fca2b23d0ba	1089	dp->index = (WORD)idx; /* Current index */
marcozecchini	0:9fca2b23d0ba	1090	clst = dp->sclust; /* Table start cluster (0:root) */
marcozecchini	0:9fca2b23d0ba	1091	if (clst == 1 \|\| clst >= dp->fs->n_fatent) /* Check start cluster range */
marcozecchini	0:9fca2b23d0ba	1092	return FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	1093	if (!clst && dp->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
marcozecchini	0:9fca2b23d0ba	1094	clst = dp->fs->dirbase;
marcozecchini	0:9fca2b23d0ba	1095
marcozecchini	0:9fca2b23d0ba	1096	if (clst == 0) { /* Static table (root-directory in FAT12/16) */
marcozecchini	0:9fca2b23d0ba	1097	if (idx >= dp->fs->n_rootdir) /* Is index out of range? */
marcozecchini	0:9fca2b23d0ba	1098	return FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	1099	sect = dp->fs->dirbase;
marcozecchini	0:9fca2b23d0ba	1100	}
marcozecchini	0:9fca2b23d0ba	1101	else { /* Dynamic table (root-directory in FAT32 or sub-directory) */
marcozecchini	0:9fca2b23d0ba	1102	ic = SS(dp->fs) / SZ_DIRE * dp->fs->csize; /* Entries per cluster */
marcozecchini	0:9fca2b23d0ba	1103	while (idx >= ic) { /* Follow cluster chain */
marcozecchini	0:9fca2b23d0ba	1104	clst = get_fat(dp->fs, clst); /* Get next cluster */
marcozecchini	0:9fca2b23d0ba	1105	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
marcozecchini	0:9fca2b23d0ba	1106	if (clst < 2 \|\| clst >= dp->fs->n_fatent) /* Reached to end of table or internal error */
marcozecchini	0:9fca2b23d0ba	1107	return FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	1108	idx -= ic;
marcozecchini	0:9fca2b23d0ba	1109	}
marcozecchini	0:9fca2b23d0ba	1110	sect = clust2sect(dp->fs, clst);
marcozecchini	0:9fca2b23d0ba	1111	}
marcozecchini	0:9fca2b23d0ba	1112	dp->clust = clst; /* Current cluster# */
marcozecchini	0:9fca2b23d0ba	1113	if (!sect) return FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	1114	dp->sect = sect + idx / (SS(dp->fs) / SZ_DIRE); /* Sector# of the directory entry */
marcozecchini	0:9fca2b23d0ba	1115	dp->dir = dp->fs->win + (idx % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Ptr to the entry in the sector */
marcozecchini	0:9fca2b23d0ba	1116
marcozecchini	0:9fca2b23d0ba	1117	return FR_OK;
marcozecchini	0:9fca2b23d0ba	1118	}
marcozecchini	0:9fca2b23d0ba	1119
marcozecchini	0:9fca2b23d0ba	1120
marcozecchini	0:9fca2b23d0ba	1121
marcozecchini	0:9fca2b23d0ba	1122
marcozecchini	0:9fca2b23d0ba	1123	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1124	/* Directory handling - Move directory table index next */
marcozecchini	0:9fca2b23d0ba	1125	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1126
marcozecchini	0:9fca2b23d0ba	1127	static
marcozecchini	0:9fca2b23d0ba	1128	FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
marcozecchini	0:9fca2b23d0ba	1129	FATFS_DIR* dp, /* Pointer to the directory object */
marcozecchini	0:9fca2b23d0ba	1130	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
marcozecchini	0:9fca2b23d0ba	1131	)
marcozecchini	0:9fca2b23d0ba	1132	{
marcozecchini	0:9fca2b23d0ba	1133	DWORD clst;
marcozecchini	0:9fca2b23d0ba	1134	UINT i;
marcozecchini	0:9fca2b23d0ba	1135	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	1136	UINT c;
marcozecchini	0:9fca2b23d0ba	1137	#endif
marcozecchini	0:9fca2b23d0ba	1138
marcozecchini	0:9fca2b23d0ba	1139
marcozecchini	0:9fca2b23d0ba	1140	i = dp->index + 1;
marcozecchini	0:9fca2b23d0ba	1141	if (!(i & 0xFFFF) \|\| !dp->sect) /* Report EOT when index has reached 65535 */
marcozecchini	0:9fca2b23d0ba	1142	return FR_NO_FILE;
marcozecchini	0:9fca2b23d0ba	1143
marcozecchini	0:9fca2b23d0ba	1144	if (!(i % (SS(dp->fs) / SZ_DIRE))) { /* Sector changed? */
marcozecchini	0:9fca2b23d0ba	1145	dp->sect++; /* Next sector */
marcozecchini	0:9fca2b23d0ba	1146
marcozecchini	0:9fca2b23d0ba	1147	if (!dp->clust) { /* Static table */
marcozecchini	0:9fca2b23d0ba	1148	if (i >= dp->fs->n_rootdir) /* Report EOT if it reached end of static table */
marcozecchini	0:9fca2b23d0ba	1149	return FR_NO_FILE;
marcozecchini	0:9fca2b23d0ba	1150	}
marcozecchini	0:9fca2b23d0ba	1151	else { /* Dynamic table */
marcozecchini	0:9fca2b23d0ba	1152	if (((i / (SS(dp->fs) / SZ_DIRE)) & (dp->fs->csize - 1)) == 0) { /* Cluster changed? */
marcozecchini	0:9fca2b23d0ba	1153	clst = get_fat(dp->fs, dp->clust); /* Get next cluster */
marcozecchini	0:9fca2b23d0ba	1154	if (clst <= 1) return FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	1155	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	1156	if (clst >= dp->fs->n_fatent) { /* If it reached end of dynamic table, */
marcozecchini	0:9fca2b23d0ba	1157	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	1158	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT */
marcozecchini	0:9fca2b23d0ba	1159	clst = create_chain(dp->fs, dp->clust); /* Stretch cluster chain */
marcozecchini	0:9fca2b23d0ba	1160	if (clst == 0) return FR_DENIED; /* No free cluster */
marcozecchini	0:9fca2b23d0ba	1161	if (clst == 1) return FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	1162	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	1163	/* Clean-up stretched table */
marcozecchini	0:9fca2b23d0ba	1164	if (sync_window(dp->fs)) return FR_DISK_ERR;/* Flush disk access window */
marcozecchini	0:9fca2b23d0ba	1165	mem_set(dp->fs->win, 0, SS(dp->fs)); /* Clear window buffer */
marcozecchini	0:9fca2b23d0ba	1166	dp->fs->winsect = clust2sect(dp->fs, clst); /* Cluster start sector */
marcozecchini	0:9fca2b23d0ba	1167	for (c = 0; c < dp->fs->csize; c++) { /* Fill the new cluster with 0 */
marcozecchini	0:9fca2b23d0ba	1168	dp->fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	1169	if (sync_window(dp->fs)) return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	1170	dp->fs->winsect++;
marcozecchini	0:9fca2b23d0ba	1171	}
marcozecchini	0:9fca2b23d0ba	1172	dp->fs->winsect -= c; /* Rewind window offset */
marcozecchini	0:9fca2b23d0ba	1173	#else
marcozecchini	0:9fca2b23d0ba	1174	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT (this is to suppress warning) */
marcozecchini	0:9fca2b23d0ba	1175	return FR_NO_FILE; /* Report EOT */
marcozecchini	0:9fca2b23d0ba	1176	#endif
marcozecchini	0:9fca2b23d0ba	1177	}
marcozecchini	0:9fca2b23d0ba	1178	dp->clust = clst; /* Initialize data for new cluster */
marcozecchini	0:9fca2b23d0ba	1179	dp->sect = clust2sect(dp->fs, clst);
marcozecchini	0:9fca2b23d0ba	1180	}
marcozecchini	0:9fca2b23d0ba	1181	}
marcozecchini	0:9fca2b23d0ba	1182	}
marcozecchini	0:9fca2b23d0ba	1183
marcozecchini	0:9fca2b23d0ba	1184	dp->index = (WORD)i; /* Current index */
marcozecchini	0:9fca2b23d0ba	1185	dp->dir = dp->fs->win + (i % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Current entry in the window */
marcozecchini	0:9fca2b23d0ba	1186
marcozecchini	0:9fca2b23d0ba	1187	return FR_OK;
marcozecchini	0:9fca2b23d0ba	1188	}
marcozecchini	0:9fca2b23d0ba	1189
marcozecchini	0:9fca2b23d0ba	1190
marcozecchini	0:9fca2b23d0ba	1191
marcozecchini	0:9fca2b23d0ba	1192
marcozecchini	0:9fca2b23d0ba	1193	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1194	/* Directory handling - Reserve directory entry */
marcozecchini	0:9fca2b23d0ba	1195	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1196
marcozecchini	0:9fca2b23d0ba	1197	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	1198	static
marcozecchini	0:9fca2b23d0ba	1199	FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */
marcozecchini	0:9fca2b23d0ba	1200	FATFS_DIR* dp, /* Pointer to the directory object */
marcozecchini	0:9fca2b23d0ba	1201	UINT nent /* Number of contiguous entries to allocate (1-21) */
marcozecchini	0:9fca2b23d0ba	1202	)
marcozecchini	0:9fca2b23d0ba	1203	{
marcozecchini	0:9fca2b23d0ba	1204	FRESULT res;
marcozecchini	0:9fca2b23d0ba	1205	UINT n;
marcozecchini	0:9fca2b23d0ba	1206
marcozecchini	0:9fca2b23d0ba	1207
marcozecchini	0:9fca2b23d0ba	1208	res = dir_sdi(dp, 0);
marcozecchini	0:9fca2b23d0ba	1209	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	1210	n = 0;
marcozecchini	0:9fca2b23d0ba	1211	do {
marcozecchini	0:9fca2b23d0ba	1212	res = move_window(dp->fs, dp->sect);
marcozecchini	0:9fca2b23d0ba	1213	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	1214	if (dp->dir[0] == DDEM \|\| dp->dir[0] == 0) { /* Is it a free entry? */
marcozecchini	0:9fca2b23d0ba	1215	if (++n == nent) break; /* A block of contiguous free entries is found */
marcozecchini	0:9fca2b23d0ba	1216	} else {
marcozecchini	0:9fca2b23d0ba	1217	n = 0; /* Not a blank entry. Restart to search */
marcozecchini	0:9fca2b23d0ba	1218	}
marcozecchini	0:9fca2b23d0ba	1219	res = dir_next(dp, 1); /* Next entry with table stretch enabled */
marcozecchini	0:9fca2b23d0ba	1220	} while (res == FR_OK);
marcozecchini	0:9fca2b23d0ba	1221	}
marcozecchini	0:9fca2b23d0ba	1222	if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */
marcozecchini	0:9fca2b23d0ba	1223	return res;
marcozecchini	0:9fca2b23d0ba	1224	}
marcozecchini	0:9fca2b23d0ba	1225	#endif
marcozecchini	0:9fca2b23d0ba	1226
marcozecchini	0:9fca2b23d0ba	1227
marcozecchini	0:9fca2b23d0ba	1228
marcozecchini	0:9fca2b23d0ba	1229
marcozecchini	0:9fca2b23d0ba	1230	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1231	/* Directory handling - Load/Store start cluster number */
marcozecchini	0:9fca2b23d0ba	1232	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1233
marcozecchini	0:9fca2b23d0ba	1234	static
marcozecchini	0:9fca2b23d0ba	1235	DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */
marcozecchini	0:9fca2b23d0ba	1236	FATFS* fs, /* Pointer to the fs object */
marcozecchini	0:9fca2b23d0ba	1237	const BYTE* dir /* Pointer to the SFN entry */
marcozecchini	0:9fca2b23d0ba	1238	)
marcozecchini	0:9fca2b23d0ba	1239	{
marcozecchini	0:9fca2b23d0ba	1240	DWORD cl;
marcozecchini	0:9fca2b23d0ba	1241
marcozecchini	0:9fca2b23d0ba	1242	cl = LD_WORD(dir + DIR_FstClusLO);
marcozecchini	0:9fca2b23d0ba	1243	if (fs->fs_type == FS_FAT32)
marcozecchini	0:9fca2b23d0ba	1244	cl \|= (DWORD)LD_WORD(dir + DIR_FstClusHI) << 16;
marcozecchini	0:9fca2b23d0ba	1245
marcozecchini	0:9fca2b23d0ba	1246	return cl;
marcozecchini	0:9fca2b23d0ba	1247	}
marcozecchini	0:9fca2b23d0ba	1248
marcozecchini	0:9fca2b23d0ba	1249
marcozecchini	0:9fca2b23d0ba	1250	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	1251	static
marcozecchini	0:9fca2b23d0ba	1252	void st_clust (
marcozecchini	0:9fca2b23d0ba	1253	BYTE* dir, /* Pointer to the SFN entry */
marcozecchini	0:9fca2b23d0ba	1254	DWORD cl /* Value to be set */
marcozecchini	0:9fca2b23d0ba	1255	)
marcozecchini	0:9fca2b23d0ba	1256	{
marcozecchini	0:9fca2b23d0ba	1257	ST_WORD(dir + DIR_FstClusLO, cl);
marcozecchini	0:9fca2b23d0ba	1258	ST_WORD(dir + DIR_FstClusHI, cl >> 16);
marcozecchini	0:9fca2b23d0ba	1259	}
marcozecchini	0:9fca2b23d0ba	1260	#endif
marcozecchini	0:9fca2b23d0ba	1261
marcozecchini	0:9fca2b23d0ba	1262
marcozecchini	0:9fca2b23d0ba	1263
marcozecchini	0:9fca2b23d0ba	1264
marcozecchini	0:9fca2b23d0ba	1265	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1266	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
marcozecchini	0:9fca2b23d0ba	1267	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1268	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	1269	static
marcozecchini	0:9fca2b23d0ba	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 */
marcozecchini	0:9fca2b23d0ba	1271
marcozecchini	0:9fca2b23d0ba	1272
marcozecchini	0:9fca2b23d0ba	1273	static
marcozecchini	0:9fca2b23d0ba	1274	int cmp_lfn ( /* 1:matched, 0:not matched */
marcozecchini	0:9fca2b23d0ba	1275	WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */
marcozecchini	0:9fca2b23d0ba	1276	BYTE* dir /* Pointer to the directory entry containing the part of LFN */
marcozecchini	0:9fca2b23d0ba	1277	)
marcozecchini	0:9fca2b23d0ba	1278	{
marcozecchini	0:9fca2b23d0ba	1279	UINT i, s;
marcozecchini	0:9fca2b23d0ba	1280	WCHAR wc, uc;
marcozecchini	0:9fca2b23d0ba	1281
marcozecchini	0:9fca2b23d0ba	1282
marcozecchini	0:9fca2b23d0ba	1283	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
marcozecchini	0:9fca2b23d0ba	1284
marcozecchini	0:9fca2b23d0ba	1285	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
marcozecchini	0:9fca2b23d0ba	1286
marcozecchini	0:9fca2b23d0ba	1287	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
marcozecchini	0:9fca2b23d0ba	1288	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
marcozecchini	0:9fca2b23d0ba	1289	if (wc) {
marcozecchini	0:9fca2b23d0ba	1290	if (i >= _MAX_LFN \|\| ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) /* Compare it */
marcozecchini	0:9fca2b23d0ba	1291	return 0; /* Not matched */
marcozecchini	0:9fca2b23d0ba	1292	wc = uc;
marcozecchini	0:9fca2b23d0ba	1293	} else {
marcozecchini	0:9fca2b23d0ba	1294	if (uc != 0xFFFF) return 0; /* Check filler */
marcozecchini	0:9fca2b23d0ba	1295	}
marcozecchini	0:9fca2b23d0ba	1296	}
marcozecchini	0:9fca2b23d0ba	1297
marcozecchini	0:9fca2b23d0ba	1298	if ((dir[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) /* Last segment matched but different length */
marcozecchini	0:9fca2b23d0ba	1299	return 0;
marcozecchini	0:9fca2b23d0ba	1300
marcozecchini	0:9fca2b23d0ba	1301	return 1; /* The part of LFN matched */
marcozecchini	0:9fca2b23d0ba	1302	}
marcozecchini	0:9fca2b23d0ba	1303
marcozecchini	0:9fca2b23d0ba	1304
marcozecchini	0:9fca2b23d0ba	1305
marcozecchini	0:9fca2b23d0ba	1306	static
marcozecchini	0:9fca2b23d0ba	1307	int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */
marcozecchini	0:9fca2b23d0ba	1308	WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
marcozecchini	0:9fca2b23d0ba	1309	BYTE* dir /* Pointer to the LFN entry */
marcozecchini	0:9fca2b23d0ba	1310	)
marcozecchini	0:9fca2b23d0ba	1311	{
marcozecchini	0:9fca2b23d0ba	1312	UINT i, s;
marcozecchini	0:9fca2b23d0ba	1313	WCHAR wc, uc;
marcozecchini	0:9fca2b23d0ba	1314
marcozecchini	0:9fca2b23d0ba	1315
marcozecchini	0:9fca2b23d0ba	1316	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
marcozecchini	0:9fca2b23d0ba	1317
marcozecchini	0:9fca2b23d0ba	1318	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
marcozecchini	0:9fca2b23d0ba	1319
marcozecchini	0:9fca2b23d0ba	1320	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
marcozecchini	0:9fca2b23d0ba	1321	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
marcozecchini	0:9fca2b23d0ba	1322	if (wc) {
marcozecchini	0:9fca2b23d0ba	1323	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
marcozecchini	0:9fca2b23d0ba	1324	lfnbuf[i++] = wc = uc; /* Store it */
marcozecchini	0:9fca2b23d0ba	1325	} else {
marcozecchini	0:9fca2b23d0ba	1326	if (uc != 0xFFFF) return 0; /* Check filler */
marcozecchini	0:9fca2b23d0ba	1327	}
marcozecchini	0:9fca2b23d0ba	1328	}
marcozecchini	0:9fca2b23d0ba	1329
marcozecchini	0:9fca2b23d0ba	1330	if (dir[LDIR_Ord] & LLEF) { /* Put terminator if it is the last LFN part */
marcozecchini	0:9fca2b23d0ba	1331	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
marcozecchini	0:9fca2b23d0ba	1332	lfnbuf[i] = 0;
marcozecchini	0:9fca2b23d0ba	1333	}
marcozecchini	0:9fca2b23d0ba	1334
marcozecchini	0:9fca2b23d0ba	1335	return 1; /* The part of LFN is valid */
marcozecchini	0:9fca2b23d0ba	1336	}
marcozecchini	0:9fca2b23d0ba	1337
marcozecchini	0:9fca2b23d0ba	1338
marcozecchini	0:9fca2b23d0ba	1339	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	1340	static
marcozecchini	0:9fca2b23d0ba	1341	void fit_lfn (
marcozecchini	0:9fca2b23d0ba	1342	const WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
marcozecchini	0:9fca2b23d0ba	1343	BYTE* dir, /* Pointer to the LFN entry to be processed */
marcozecchini	0:9fca2b23d0ba	1344	BYTE ord, /* LFN order (1-20) */
marcozecchini	0:9fca2b23d0ba	1345	BYTE sum /* Checksum of the corresponding SFN */
marcozecchini	0:9fca2b23d0ba	1346	)
marcozecchini	0:9fca2b23d0ba	1347	{
marcozecchini	0:9fca2b23d0ba	1348	UINT i, s;
marcozecchini	0:9fca2b23d0ba	1349	WCHAR wc;
marcozecchini	0:9fca2b23d0ba	1350
marcozecchini	0:9fca2b23d0ba	1351
marcozecchini	0:9fca2b23d0ba	1352	dir[LDIR_Chksum] = sum; /* Set checksum */
marcozecchini	0:9fca2b23d0ba	1353	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
marcozecchini	0:9fca2b23d0ba	1354	dir[LDIR_Type] = 0;
marcozecchini	0:9fca2b23d0ba	1355	ST_WORD(dir + LDIR_FstClusLO, 0);
marcozecchini	0:9fca2b23d0ba	1356
marcozecchini	0:9fca2b23d0ba	1357	i = (ord - 1) * 13; /* Get offset in the LFN working buffer */
marcozecchini	0:9fca2b23d0ba	1358	s = wc = 0;
marcozecchini	0:9fca2b23d0ba	1359	do {
marcozecchini	0:9fca2b23d0ba	1360	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective character */
marcozecchini	0:9fca2b23d0ba	1361	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
marcozecchini	0:9fca2b23d0ba	1362	if (!wc) wc = 0xFFFF; /* Padding characters following last character */
marcozecchini	0:9fca2b23d0ba	1363	} while (++s < 13);
marcozecchini	0:9fca2b23d0ba	1364	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLEF; /* Bottom LFN part is the start of LFN sequence */
marcozecchini	0:9fca2b23d0ba	1365	dir[LDIR_Ord] = ord; /* Set the LFN order */
marcozecchini	0:9fca2b23d0ba	1366	}
marcozecchini	0:9fca2b23d0ba	1367
marcozecchini	0:9fca2b23d0ba	1368	#endif
marcozecchini	0:9fca2b23d0ba	1369	#endif
marcozecchini	0:9fca2b23d0ba	1370
marcozecchini	0:9fca2b23d0ba	1371
marcozecchini	0:9fca2b23d0ba	1372
marcozecchini	0:9fca2b23d0ba	1373
marcozecchini	0:9fca2b23d0ba	1374	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1375	/* Create numbered name */
marcozecchini	0:9fca2b23d0ba	1376	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1377	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	1378	static
marcozecchini	0:9fca2b23d0ba	1379	void gen_numname (
marcozecchini	0:9fca2b23d0ba	1380	BYTE* dst, /* Pointer to the buffer to store numbered SFN */
marcozecchini	0:9fca2b23d0ba	1381	const BYTE* src, /* Pointer to SFN */
marcozecchini	0:9fca2b23d0ba	1382	const WCHAR* lfn, /* Pointer to LFN */
marcozecchini	0:9fca2b23d0ba	1383	UINT seq /* Sequence number */
marcozecchini	0:9fca2b23d0ba	1384	)
marcozecchini	0:9fca2b23d0ba	1385	{
marcozecchini	0:9fca2b23d0ba	1386	BYTE ns[8], c;
marcozecchini	0:9fca2b23d0ba	1387	UINT i, j;
marcozecchini	0:9fca2b23d0ba	1388	WCHAR wc;
marcozecchini	0:9fca2b23d0ba	1389	DWORD sr;
marcozecchini	0:9fca2b23d0ba	1390
marcozecchini	0:9fca2b23d0ba	1391
marcozecchini	0:9fca2b23d0ba	1392	mem_cpy(dst, src, 11);
marcozecchini	0:9fca2b23d0ba	1393
marcozecchini	0:9fca2b23d0ba	1394	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
marcozecchini	0:9fca2b23d0ba	1395	sr = seq;
marcozecchini	0:9fca2b23d0ba	1396	while (lfn) { / Create a CRC */
marcozecchini	0:9fca2b23d0ba	1397	wc = *lfn++;
marcozecchini	0:9fca2b23d0ba	1398	for (i = 0; i < 16; i++) {
marcozecchini	0:9fca2b23d0ba	1399	sr = (sr << 1) + (wc & 1);
marcozecchini	0:9fca2b23d0ba	1400	wc >>= 1;
marcozecchini	0:9fca2b23d0ba	1401	if (sr & 0x10000) sr ^= 0x11021;
marcozecchini	0:9fca2b23d0ba	1402	}
marcozecchini	0:9fca2b23d0ba	1403	}
marcozecchini	0:9fca2b23d0ba	1404	seq = (UINT)sr;
marcozecchini	0:9fca2b23d0ba	1405	}
marcozecchini	0:9fca2b23d0ba	1406
marcozecchini	0:9fca2b23d0ba	1407	/* itoa (hexdecimal) */
marcozecchini	0:9fca2b23d0ba	1408	i = 7;
marcozecchini	0:9fca2b23d0ba	1409	do {
marcozecchini	0:9fca2b23d0ba	1410	c = (seq % 16) + '0';
marcozecchini	0:9fca2b23d0ba	1411	if (c > '9') c += 7;
marcozecchini	0:9fca2b23d0ba	1412	ns[i--] = c;
marcozecchini	0:9fca2b23d0ba	1413	seq /= 16;
marcozecchini	0:9fca2b23d0ba	1414	} while (seq);
marcozecchini	0:9fca2b23d0ba	1415	ns[i] = '~';
marcozecchini	0:9fca2b23d0ba	1416
marcozecchini	0:9fca2b23d0ba	1417	/* Append the number */
marcozecchini	0:9fca2b23d0ba	1418	for (j = 0; j < i && dst[j] != ' '; j++) {
marcozecchini	0:9fca2b23d0ba	1419	if (IsDBCS1(dst[j])) {
marcozecchini	0:9fca2b23d0ba	1420	if (j == i - 1) break;
marcozecchini	0:9fca2b23d0ba	1421	j++;
marcozecchini	0:9fca2b23d0ba	1422	}
marcozecchini	0:9fca2b23d0ba	1423	}
marcozecchini	0:9fca2b23d0ba	1424	do {
marcozecchini	0:9fca2b23d0ba	1425	dst[j++] = (i < 8) ? ns[i++] : ' ';
marcozecchini	0:9fca2b23d0ba	1426	} while (j < 8);
marcozecchini	0:9fca2b23d0ba	1427	}
marcozecchini	0:9fca2b23d0ba	1428	#endif
marcozecchini	0:9fca2b23d0ba	1429
marcozecchini	0:9fca2b23d0ba	1430
marcozecchini	0:9fca2b23d0ba	1431
marcozecchini	0:9fca2b23d0ba	1432
marcozecchini	0:9fca2b23d0ba	1433	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1434	/* Calculate checksum of an SFN entry */
marcozecchini	0:9fca2b23d0ba	1435	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1436	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	1437	static
marcozecchini	0:9fca2b23d0ba	1438	BYTE sum_sfn (
marcozecchini	0:9fca2b23d0ba	1439	const BYTE* dir /* Pointer to the SFN entry */
marcozecchini	0:9fca2b23d0ba	1440	)
marcozecchini	0:9fca2b23d0ba	1441	{
marcozecchini	0:9fca2b23d0ba	1442	BYTE sum = 0;
marcozecchini	0:9fca2b23d0ba	1443	UINT n = 11;
marcozecchini	0:9fca2b23d0ba	1444
marcozecchini	0:9fca2b23d0ba	1445	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
marcozecchini	0:9fca2b23d0ba	1446	return sum;
marcozecchini	0:9fca2b23d0ba	1447	}
marcozecchini	0:9fca2b23d0ba	1448	#endif
marcozecchini	0:9fca2b23d0ba	1449
marcozecchini	0:9fca2b23d0ba	1450
marcozecchini	0:9fca2b23d0ba	1451
marcozecchini	0:9fca2b23d0ba	1452
marcozecchini	0:9fca2b23d0ba	1453	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1454	/* Directory handling - Find an object in the directory */
marcozecchini	0:9fca2b23d0ba	1455	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1456
marcozecchini	0:9fca2b23d0ba	1457	static
marcozecchini	0:9fca2b23d0ba	1458	FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */
marcozecchini	0:9fca2b23d0ba	1459	FATFS_DIR* dp /* Pointer to the directory object linked to the file name */
marcozecchini	0:9fca2b23d0ba	1460	)
marcozecchini	0:9fca2b23d0ba	1461	{
marcozecchini	0:9fca2b23d0ba	1462	FRESULT res;
marcozecchini	0:9fca2b23d0ba	1463	BYTE c, *dir;
marcozecchini	0:9fca2b23d0ba	1464	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	1465	BYTE a, ord, sum;
marcozecchini	0:9fca2b23d0ba	1466	#endif
marcozecchini	0:9fca2b23d0ba	1467
marcozecchini	0:9fca2b23d0ba	1468	res = dir_sdi(dp, 0); /* Rewind directory object */
marcozecchini	0:9fca2b23d0ba	1469	if (res != FR_OK) return res;
marcozecchini	0:9fca2b23d0ba	1470
marcozecchini	0:9fca2b23d0ba	1471	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	1472	ord = sum = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
marcozecchini	0:9fca2b23d0ba	1473	#endif
marcozecchini	0:9fca2b23d0ba	1474	do {
marcozecchini	0:9fca2b23d0ba	1475	res = move_window(dp->fs, dp->sect);
marcozecchini	0:9fca2b23d0ba	1476	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	1477	dir = dp->dir; /* Ptr to the directory entry of current index */
marcozecchini	0:9fca2b23d0ba	1478	c = dir[DIR_Name];
marcozecchini	0:9fca2b23d0ba	1479	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
marcozecchini	0:9fca2b23d0ba	1480	#if _USE_LFN /* LFN configuration */
marcozecchini	0:9fca2b23d0ba	1481	a = dir[DIR_Attr] & AM_MASK;
marcozecchini	0:9fca2b23d0ba	1482	if (c == DDEM \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
marcozecchini	0:9fca2b23d0ba	1483	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
marcozecchini	0:9fca2b23d0ba	1484	} else {
marcozecchini	0:9fca2b23d0ba	1485	if (a == AM_LFN) { /* An LFN entry is found */
marcozecchini	0:9fca2b23d0ba	1486	if (dp->lfn) {
marcozecchini	0:9fca2b23d0ba	1487	if (c & LLEF) { /* Is it start of LFN sequence? */
marcozecchini	0:9fca2b23d0ba	1488	sum = dir[LDIR_Chksum];
marcozecchini	0:9fca2b23d0ba	1489	c &= ~LLEF; ord = c; /* LFN start order */
marcozecchini	0:9fca2b23d0ba	1490	dp->lfn_idx = dp->index; /* Start index of LFN */
marcozecchini	0:9fca2b23d0ba	1491	}
marcozecchini	0:9fca2b23d0ba	1492	/* Check validity of the LFN entry and compare it with given name */
marcozecchini	0:9fca2b23d0ba	1493	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
marcozecchini	0:9fca2b23d0ba	1494	}
marcozecchini	0:9fca2b23d0ba	1495	} else { /* An SFN entry is found */
marcozecchini	0:9fca2b23d0ba	1496	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
marcozecchini	0:9fca2b23d0ba	1497	if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(dir, dp->fn, 11)) break; /* SFN matched? */
marcozecchini	0:9fca2b23d0ba	1498	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
marcozecchini	0:9fca2b23d0ba	1499	}
marcozecchini	0:9fca2b23d0ba	1500	}
marcozecchini	0:9fca2b23d0ba	1501	#else /* Non LFN configuration */
marcozecchini	0:9fca2b23d0ba	1502	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dp->fn, 11)) /* Is it a valid entry? */
marcozecchini	0:9fca2b23d0ba	1503	break;
marcozecchini	0:9fca2b23d0ba	1504	#endif
marcozecchini	0:9fca2b23d0ba	1505	res = dir_next(dp, 0); /* Next entry */
marcozecchini	0:9fca2b23d0ba	1506	} while (res == FR_OK);
marcozecchini	0:9fca2b23d0ba	1507
marcozecchini	0:9fca2b23d0ba	1508	return res;
marcozecchini	0:9fca2b23d0ba	1509	}
marcozecchini	0:9fca2b23d0ba	1510
marcozecchini	0:9fca2b23d0ba	1511
marcozecchini	0:9fca2b23d0ba	1512
marcozecchini	0:9fca2b23d0ba	1513
marcozecchini	0:9fca2b23d0ba	1514	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1515	/* Read an object from the directory */
marcozecchini	0:9fca2b23d0ba	1516	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1517	#if _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2
marcozecchini	0:9fca2b23d0ba	1518	static
marcozecchini	0:9fca2b23d0ba	1519	FRESULT dir_read (
marcozecchini	0:9fca2b23d0ba	1520	FATFS_DIR* dp, /* Pointer to the directory object */
marcozecchini	0:9fca2b23d0ba	1521	int vol /* Filtered by 0:file/directory or 1:volume label */
marcozecchini	0:9fca2b23d0ba	1522	)
marcozecchini	0:9fca2b23d0ba	1523	{
marcozecchini	0:9fca2b23d0ba	1524	FRESULT res;
marcozecchini	0:9fca2b23d0ba	1525	BYTE a, c, *dir;
marcozecchini	0:9fca2b23d0ba	1526	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	1527	BYTE ord = 0xFF, sum = 0xFF;
marcozecchini	0:9fca2b23d0ba	1528	#endif
marcozecchini	0:9fca2b23d0ba	1529
marcozecchini	0:9fca2b23d0ba	1530	res = FR_NO_FILE;
marcozecchini	0:9fca2b23d0ba	1531	while (dp->sect) {
marcozecchini	0:9fca2b23d0ba	1532	res = move_window(dp->fs, dp->sect);
marcozecchini	0:9fca2b23d0ba	1533	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	1534	dir = dp->dir; /* Ptr to the directory entry of current index */
marcozecchini	0:9fca2b23d0ba	1535	c = dir[DIR_Name];
marcozecchini	0:9fca2b23d0ba	1536	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
marcozecchini	0:9fca2b23d0ba	1537	a = dir[DIR_Attr] & AM_MASK;
marcozecchini	0:9fca2b23d0ba	1538	#if _USE_LFN /* LFN configuration */
marcozecchini	0:9fca2b23d0ba	1539	if (c == DDEM \|\| (!_FS_RPATH && c == '.') \|\| (int)((a & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */
marcozecchini	0:9fca2b23d0ba	1540	ord = 0xFF;
marcozecchini	0:9fca2b23d0ba	1541	} else {
marcozecchini	0:9fca2b23d0ba	1542	if (a == AM_LFN) { /* An LFN entry is found */
marcozecchini	0:9fca2b23d0ba	1543	if (c & LLEF) { /* Is it start of LFN sequence? */
marcozecchini	0:9fca2b23d0ba	1544	sum = dir[LDIR_Chksum];
marcozecchini	0:9fca2b23d0ba	1545	c &= ~LLEF; ord = c;
marcozecchini	0:9fca2b23d0ba	1546	dp->lfn_idx = dp->index;
marcozecchini	0:9fca2b23d0ba	1547	}
marcozecchini	0:9fca2b23d0ba	1548	/* Check LFN validity and capture it */
marcozecchini	0:9fca2b23d0ba	1549	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
marcozecchini	0:9fca2b23d0ba	1550	} else { /* An SFN entry is found */
marcozecchini	0:9fca2b23d0ba	1551	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
marcozecchini	0:9fca2b23d0ba	1552	dp->lfn_idx = 0xFFFF; /* It has no LFN. */
marcozecchini	0:9fca2b23d0ba	1553	break;
marcozecchini	0:9fca2b23d0ba	1554	}
marcozecchini	0:9fca2b23d0ba	1555	}
marcozecchini	0:9fca2b23d0ba	1556	#else /* Non LFN configuration */
marcozecchini	0:9fca2b23d0ba	1557	if (c != DDEM && (_FS_RPATH \|\| c != '.') && a != AM_LFN && (int)((a & ~AM_ARC) == AM_VOL) == vol) /* Is it a valid entry? */
marcozecchini	0:9fca2b23d0ba	1558	break;
marcozecchini	0:9fca2b23d0ba	1559	#endif
marcozecchini	0:9fca2b23d0ba	1560	res = dir_next(dp, 0); /* Next entry */
marcozecchini	0:9fca2b23d0ba	1561	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	1562	}
marcozecchini	0:9fca2b23d0ba	1563
marcozecchini	0:9fca2b23d0ba	1564	if (res != FR_OK) dp->sect = 0;
marcozecchini	0:9fca2b23d0ba	1565
marcozecchini	0:9fca2b23d0ba	1566	return res;
marcozecchini	0:9fca2b23d0ba	1567	}
marcozecchini	0:9fca2b23d0ba	1568	#endif /* _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2 */
marcozecchini	0:9fca2b23d0ba	1569
marcozecchini	0:9fca2b23d0ba	1570
marcozecchini	0:9fca2b23d0ba	1571
marcozecchini	0:9fca2b23d0ba	1572
marcozecchini	0:9fca2b23d0ba	1573	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1574	/* Register an object to the directory */
marcozecchini	0:9fca2b23d0ba	1575	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1576	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	1577	static
marcozecchini	0:9fca2b23d0ba	1578	FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many SFN collision, FR_DISK_ERR:disk error */
marcozecchini	0:9fca2b23d0ba	1579	FATFS_DIR* dp /* Target directory with object name to be created */
marcozecchini	0:9fca2b23d0ba	1580	)
marcozecchini	0:9fca2b23d0ba	1581	{
marcozecchini	0:9fca2b23d0ba	1582	FRESULT res;
marcozecchini	0:9fca2b23d0ba	1583	#if _USE_LFN /* LFN configuration */
marcozecchini	0:9fca2b23d0ba	1584	UINT n, nent;
marcozecchini	0:9fca2b23d0ba	1585	BYTE sn[12], *fn, sum;
marcozecchini	0:9fca2b23d0ba	1586	WCHAR *lfn;
marcozecchini	0:9fca2b23d0ba	1587
marcozecchini	0:9fca2b23d0ba	1588
marcozecchini	0:9fca2b23d0ba	1589	fn = dp->fn; lfn = dp->lfn;
marcozecchini	0:9fca2b23d0ba	1590	mem_cpy(sn, fn, 12);
marcozecchini	0:9fca2b23d0ba	1591
marcozecchini	0:9fca2b23d0ba	1592	if (_FS_RPATH && (sn[NSFLAG] & NS_DOT)) /* Cannot create dot entry */
marcozecchini	0:9fca2b23d0ba	1593	return FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	1594
marcozecchini	0:9fca2b23d0ba	1595	if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
marcozecchini	0:9fca2b23d0ba	1596	fn[NSFLAG] = 0; dp->lfn = 0; /* Find only SFN */
marcozecchini	0:9fca2b23d0ba	1597	for (n = 1; n < 100; n++) {
marcozecchini	0:9fca2b23d0ba	1598	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
marcozecchini	0:9fca2b23d0ba	1599	res = dir_find(dp); /* Check if the name collides with existing SFN */
marcozecchini	0:9fca2b23d0ba	1600	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	1601	}
marcozecchini	0:9fca2b23d0ba	1602	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
marcozecchini	0:9fca2b23d0ba	1603	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
marcozecchini	0:9fca2b23d0ba	1604	fn[NSFLAG] = sn[NSFLAG]; dp->lfn = lfn;
marcozecchini	0:9fca2b23d0ba	1605	}
marcozecchini	0:9fca2b23d0ba	1606
marcozecchini	0:9fca2b23d0ba	1607	if (sn[NSFLAG] & NS_LFN) { /* When LFN is to be created, allocate entries for an SFN + LFNs. */
marcozecchini	0:9fca2b23d0ba	1608	for (n = 0; lfn[n]; n++) ;
marcozecchini	0:9fca2b23d0ba	1609	nent = (n + 25) / 13;
marcozecchini	0:9fca2b23d0ba	1610	} else { /* Otherwise allocate an entry for an SFN */
marcozecchini	0:9fca2b23d0ba	1611	nent = 1;
marcozecchini	0:9fca2b23d0ba	1612	}
marcozecchini	0:9fca2b23d0ba	1613	res = dir_alloc(dp, nent); /* Allocate entries */
marcozecchini	0:9fca2b23d0ba	1614
marcozecchini	0:9fca2b23d0ba	1615	if (res == FR_OK && --nent) { /* Set LFN entry if needed */
marcozecchini	0:9fca2b23d0ba	1616	res = dir_sdi(dp, dp->index - nent);
marcozecchini	0:9fca2b23d0ba	1617	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	1618	sum = sum_sfn(dp->fn); /* Checksum value of the SFN tied to the LFN */
marcozecchini	0:9fca2b23d0ba	1619	do { /* Store LFN entries in bottom first */
marcozecchini	0:9fca2b23d0ba	1620	res = move_window(dp->fs, dp->sect);
marcozecchini	0:9fca2b23d0ba	1621	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	1622	fit_lfn(dp->lfn, dp->dir, (BYTE)nent, sum);
marcozecchini	0:9fca2b23d0ba	1623	dp->fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	1624	res = dir_next(dp, 0); /* Next entry */
marcozecchini	0:9fca2b23d0ba	1625	} while (res == FR_OK && --nent);
marcozecchini	0:9fca2b23d0ba	1626	}
marcozecchini	0:9fca2b23d0ba	1627	}
marcozecchini	0:9fca2b23d0ba	1628	#else /* Non LFN configuration */
marcozecchini	0:9fca2b23d0ba	1629	res = dir_alloc(dp, 1); /* Allocate an entry for SFN */
marcozecchini	0:9fca2b23d0ba	1630	#endif
marcozecchini	0:9fca2b23d0ba	1631
marcozecchini	0:9fca2b23d0ba	1632	if (res == FR_OK) { /* Set SFN entry */
marcozecchini	0:9fca2b23d0ba	1633	res = move_window(dp->fs, dp->sect);
marcozecchini	0:9fca2b23d0ba	1634	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	1635	mem_set(dp->dir, 0, SZ_DIRE); /* Clean the entry */
marcozecchini	0:9fca2b23d0ba	1636	mem_cpy(dp->dir, dp->fn, 11); /* Put SFN */
marcozecchini	0:9fca2b23d0ba	1637	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	1638	dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY \| NS_EXT); /* Put NT flag */
marcozecchini	0:9fca2b23d0ba	1639	#endif
marcozecchini	0:9fca2b23d0ba	1640	dp->fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	1641	}
marcozecchini	0:9fca2b23d0ba	1642	}
marcozecchini	0:9fca2b23d0ba	1643
marcozecchini	0:9fca2b23d0ba	1644	return res;
marcozecchini	0:9fca2b23d0ba	1645	}
marcozecchini	0:9fca2b23d0ba	1646	#endif /* !_FS_READONLY */
marcozecchini	0:9fca2b23d0ba	1647
marcozecchini	0:9fca2b23d0ba	1648
marcozecchini	0:9fca2b23d0ba	1649
marcozecchini	0:9fca2b23d0ba	1650
marcozecchini	0:9fca2b23d0ba	1651	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1652	/* Remove an object from the directory */
marcozecchini	0:9fca2b23d0ba	1653	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1654	#if !_FS_READONLY && !_FS_MINIMIZE
marcozecchini	0:9fca2b23d0ba	1655	static
marcozecchini	0:9fca2b23d0ba	1656	FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */
marcozecchini	0:9fca2b23d0ba	1657	FATFS_DIR* dp /* Directory object pointing the entry to be removed */
marcozecchini	0:9fca2b23d0ba	1658	)
marcozecchini	0:9fca2b23d0ba	1659	{
marcozecchini	0:9fca2b23d0ba	1660	FRESULT res;
marcozecchini	0:9fca2b23d0ba	1661	#if _USE_LFN /* LFN configuration */
marcozecchini	0:9fca2b23d0ba	1662	UINT i;
marcozecchini	0:9fca2b23d0ba	1663
marcozecchini	0:9fca2b23d0ba	1664	i = dp->index; /* SFN index */
marcozecchini	0:9fca2b23d0ba	1665	res = dir_sdi(dp, (dp->lfn_idx == 0xFFFF) ? i : dp->lfn_idx); /* Goto the SFN or top of the LFN entries */
marcozecchini	0:9fca2b23d0ba	1666	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	1667	do {
marcozecchini	0:9fca2b23d0ba	1668	res = move_window(dp->fs, dp->sect);
marcozecchini	0:9fca2b23d0ba	1669	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	1670	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
marcozecchini	0:9fca2b23d0ba	1671	*dp->dir = DDEM;
marcozecchini	0:9fca2b23d0ba	1672	dp->fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	1673	if (dp->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
marcozecchini	0:9fca2b23d0ba	1674	res = dir_next(dp, 0); /* Next entry */
marcozecchini	0:9fca2b23d0ba	1675	} while (res == FR_OK);
marcozecchini	0:9fca2b23d0ba	1676	if (res == FR_NO_FILE) res = FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	1677	}
marcozecchini	0:9fca2b23d0ba	1678
marcozecchini	0:9fca2b23d0ba	1679	#else /* Non LFN configuration */
marcozecchini	0:9fca2b23d0ba	1680	res = dir_sdi(dp, dp->index);
marcozecchini	0:9fca2b23d0ba	1681	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	1682	res = move_window(dp->fs, dp->sect);
marcozecchini	0:9fca2b23d0ba	1683	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	1684	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
marcozecchini	0:9fca2b23d0ba	1685	*dp->dir = DDEM;
marcozecchini	0:9fca2b23d0ba	1686	dp->fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	1687	}
marcozecchini	0:9fca2b23d0ba	1688	}
marcozecchini	0:9fca2b23d0ba	1689	#endif
marcozecchini	0:9fca2b23d0ba	1690
marcozecchini	0:9fca2b23d0ba	1691	return res;
marcozecchini	0:9fca2b23d0ba	1692	}
marcozecchini	0:9fca2b23d0ba	1693	#endif /* !_FS_READONLY */
marcozecchini	0:9fca2b23d0ba	1694
marcozecchini	0:9fca2b23d0ba	1695
marcozecchini	0:9fca2b23d0ba	1696
marcozecchini	0:9fca2b23d0ba	1697
marcozecchini	0:9fca2b23d0ba	1698	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1699	/* Get file information from directory entry */
marcozecchini	0:9fca2b23d0ba	1700	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1701	#if _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2
marcozecchini	0:9fca2b23d0ba	1702	static
marcozecchini	0:9fca2b23d0ba	1703	void get_fileinfo ( /* No return code */
marcozecchini	0:9fca2b23d0ba	1704	FATFS_DIR* dp, /* Pointer to the directory object */
marcozecchini	0:9fca2b23d0ba	1705	FILINFO* fno /* Pointer to the file information to be filled */
marcozecchini	0:9fca2b23d0ba	1706	)
marcozecchini	0:9fca2b23d0ba	1707	{
marcozecchini	0:9fca2b23d0ba	1708	UINT i;
marcozecchini	0:9fca2b23d0ba	1709	TCHAR *p, c;
marcozecchini	0:9fca2b23d0ba	1710	BYTE *dir;
marcozecchini	0:9fca2b23d0ba	1711	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	1712	WCHAR w, *lfn;
marcozecchini	0:9fca2b23d0ba	1713	#endif
marcozecchini	0:9fca2b23d0ba	1714
marcozecchini	0:9fca2b23d0ba	1715	p = fno->fname;
marcozecchini	0:9fca2b23d0ba	1716	if (dp->sect) { /* Get SFN */
marcozecchini	0:9fca2b23d0ba	1717	dir = dp->dir;
marcozecchini	0:9fca2b23d0ba	1718	i = 0;
marcozecchini	0:9fca2b23d0ba	1719	while (i < 11) { /* Copy name body and extension */
marcozecchini	0:9fca2b23d0ba	1720	c = (TCHAR)dir[i++];
marcozecchini	0:9fca2b23d0ba	1721	if (c == ' ') continue; /* Skip padding spaces */
marcozecchini	0:9fca2b23d0ba	1722	if (c == RDDEM) c = (TCHAR)DDEM; /* Restore replaced DDEM character */
marcozecchini	0:9fca2b23d0ba	1723	if (i == 9) p++ = '.'; / Insert a . if extension is exist */
marcozecchini	0:9fca2b23d0ba	1724	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	1725	if (IsUpper(c) && (dir[DIR_NTres] & (i >= 9 ? NS_EXT : NS_BODY)))
marcozecchini	0:9fca2b23d0ba	1726	c += 0x20; /* To lower */
marcozecchini	0:9fca2b23d0ba	1727	#if _LFN_UNICODE
marcozecchini	0:9fca2b23d0ba	1728	if (IsDBCS1(c) && i != 8 && i != 11 && IsDBCS2(dir[i]))
marcozecchini	0:9fca2b23d0ba	1729	c = c << 8 \| dir[i++];
marcozecchini	0:9fca2b23d0ba	1730	c = ff_convert(c, 1); /* OEM -> Unicode */
marcozecchini	0:9fca2b23d0ba	1731	if (!c) c = '?';
marcozecchini	0:9fca2b23d0ba	1732	#endif
marcozecchini	0:9fca2b23d0ba	1733	#endif
marcozecchini	0:9fca2b23d0ba	1734	*p++ = c;
marcozecchini	0:9fca2b23d0ba	1735	}
marcozecchini	0:9fca2b23d0ba	1736	fno->fattrib = dir[DIR_Attr]; /* Attribute */
marcozecchini	0:9fca2b23d0ba	1737	fno->fsize = LD_DWORD(dir + DIR_FileSize); /* Size */
marcozecchini	0:9fca2b23d0ba	1738	fno->fdate = LD_WORD(dir + DIR_WrtDate); /* Date */
marcozecchini	0:9fca2b23d0ba	1739	fno->ftime = LD_WORD(dir + DIR_WrtTime); /* Time */
marcozecchini	0:9fca2b23d0ba	1740	}
marcozecchini	0:9fca2b23d0ba	1741	p = 0; / Terminate SFN string by a \0 */
marcozecchini	0:9fca2b23d0ba	1742
marcozecchini	0:9fca2b23d0ba	1743	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	1744	if (fno->lfname) {
marcozecchini	0:9fca2b23d0ba	1745	i = 0; p = fno->lfname;
marcozecchini	0:9fca2b23d0ba	1746	if (dp->sect && fno->lfsize && dp->lfn_idx != 0xFFFF) { /* Get LFN if available */
marcozecchini	0:9fca2b23d0ba	1747	lfn = dp->lfn;
marcozecchini	0:9fca2b23d0ba	1748	while ((w = lfn++) != 0) { / Get an LFN character */
marcozecchini	0:9fca2b23d0ba	1749	#if !_LFN_UNICODE
marcozecchini	0:9fca2b23d0ba	1750	w = ff_convert(w, 0); /* Unicode -> OEM */
marcozecchini	0:9fca2b23d0ba	1751	if (!w) { i = 0; break; } /* No LFN if it could not be converted */
marcozecchini	0:9fca2b23d0ba	1752	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
marcozecchini	0:9fca2b23d0ba	1753	p[i++] = (TCHAR)(w >> 8);
marcozecchini	0:9fca2b23d0ba	1754	#endif
marcozecchini	0:9fca2b23d0ba	1755	if (i >= fno->lfsize - 1) { i = 0; break; } /* No LFN if buffer overflow */
marcozecchini	0:9fca2b23d0ba	1756	p[i++] = (TCHAR)w;
marcozecchini	0:9fca2b23d0ba	1757	}
marcozecchini	0:9fca2b23d0ba	1758	}
marcozecchini	0:9fca2b23d0ba	1759	p[i] = 0; /* Terminate LFN string by a \0 */
marcozecchini	0:9fca2b23d0ba	1760	}
marcozecchini	0:9fca2b23d0ba	1761	#endif
marcozecchini	0:9fca2b23d0ba	1762	}
marcozecchini	0:9fca2b23d0ba	1763	#endif /* _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2 */
marcozecchini	0:9fca2b23d0ba	1764
marcozecchini	0:9fca2b23d0ba	1765
marcozecchini	0:9fca2b23d0ba	1766
marcozecchini	0:9fca2b23d0ba	1767
marcozecchini	0:9fca2b23d0ba	1768	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1769	/* Pattern matching */
marcozecchini	0:9fca2b23d0ba	1770	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1771	#if _USE_FIND && _FS_MINIMIZE <= 1
marcozecchini	0:9fca2b23d0ba	1772	static
marcozecchini	0:9fca2b23d0ba	1773	WCHAR get_achar ( /* Get a character and advances ptr 1 or 2 */
marcozecchini	0:9fca2b23d0ba	1774	const TCHAR** ptr /* Pointer to pointer to the SBCS/DBCS/Unicode string */
marcozecchini	0:9fca2b23d0ba	1775	)
marcozecchini	0:9fca2b23d0ba	1776	{
marcozecchini	0:9fca2b23d0ba	1777	WCHAR chr;
marcozecchini	0:9fca2b23d0ba	1778
marcozecchini	0:9fca2b23d0ba	1779	#if !_LFN_UNICODE
marcozecchini	0:9fca2b23d0ba	1780	chr = (BYTE)(ptr)++; /* Get a byte */
marcozecchini	0:9fca2b23d0ba	1781	if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */
marcozecchini	0:9fca2b23d0ba	1782	if (IsDBCS1(chr) && IsDBCS2(*ptr)) / Get DBC 2nd byte if needed */
marcozecchini	0:9fca2b23d0ba	1783	chr = chr << 8 \| (BYTE)(ptr)++;
marcozecchini	0:9fca2b23d0ba	1784	#ifdef _EXCVT
marcozecchini	0:9fca2b23d0ba	1785	if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */
marcozecchini	0:9fca2b23d0ba	1786	#endif
marcozecchini	0:9fca2b23d0ba	1787	#else
marcozecchini	0:9fca2b23d0ba	1788	chr = ff_wtoupper((ptr)++); /* Get a word and to upper */
marcozecchini	0:9fca2b23d0ba	1789	#endif
marcozecchini	0:9fca2b23d0ba	1790	return chr;
marcozecchini	0:9fca2b23d0ba	1791	}
marcozecchini	0:9fca2b23d0ba	1792
marcozecchini	0:9fca2b23d0ba	1793
marcozecchini	0:9fca2b23d0ba	1794	static
marcozecchini	0:9fca2b23d0ba	1795	int pattern_matching ( /* 0:mismatched, 1:matched */
marcozecchini	0:9fca2b23d0ba	1796	const TCHAR* pat, /* Matching pattern */
marcozecchini	0:9fca2b23d0ba	1797	const TCHAR* nam, /* String to be tested */
marcozecchini	0:9fca2b23d0ba	1798	int skip, /* Number of pre-skip chars (number of ?s) */
marcozecchini	0:9fca2b23d0ba	1799	int inf /* Infinite search (* specified) */
marcozecchini	0:9fca2b23d0ba	1800	)
marcozecchini	0:9fca2b23d0ba	1801	{
marcozecchini	0:9fca2b23d0ba	1802	const TCHAR pp, np;
marcozecchini	0:9fca2b23d0ba	1803	WCHAR pc, nc;
marcozecchini	0:9fca2b23d0ba	1804	int nm, nx;
marcozecchini	0:9fca2b23d0ba	1805
marcozecchini	0:9fca2b23d0ba	1806
marcozecchini	0:9fca2b23d0ba	1807	while (skip--) { /* Pre-skip name chars */
marcozecchini	0:9fca2b23d0ba	1808	if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */
marcozecchini	0:9fca2b23d0ba	1809	}
marcozecchini	0:9fca2b23d0ba	1810	if (!pat && inf) return 1; / (short circuit) */
marcozecchini	0:9fca2b23d0ba	1811
marcozecchini	0:9fca2b23d0ba	1812	do {
marcozecchini	0:9fca2b23d0ba	1813	pp = pat; np = nam; /* Top of pattern and name to match */
marcozecchini	0:9fca2b23d0ba	1814	for (;;) {
marcozecchini	0:9fca2b23d0ba	1815	if (pp == '?' \|\| pp == '') { / Wildcard? */
marcozecchini	0:9fca2b23d0ba	1816	nm = nx = 0;
marcozecchini	0:9fca2b23d0ba	1817	do { /* Analyze the wildcard chars */
marcozecchini	0:9fca2b23d0ba	1818	if (*pp++ == '?') nm++; else nx = 1;
marcozecchini	0:9fca2b23d0ba	1819	} while (pp == '?' \|\| pp == '*');
marcozecchini	0:9fca2b23d0ba	1820	if (pattern_matching(pp, np, nm, nx)) return 1; /* Test new branch (recurs upto number of wildcard blocks in the pattern) */
marcozecchini	0:9fca2b23d0ba	1821	nc = np; break; / Branch mismatched */
marcozecchini	0:9fca2b23d0ba	1822	}
marcozecchini	0:9fca2b23d0ba	1823	pc = get_achar(&pp); /* Get a pattern char */
marcozecchini	0:9fca2b23d0ba	1824	nc = get_achar(&np); /* Get a name char */
marcozecchini	0:9fca2b23d0ba	1825	if (pc != nc) break; /* Branch mismatched? */
marcozecchini	0:9fca2b23d0ba	1826	if (!pc) return 1; /* Branch matched? (matched at end of both strings) */
marcozecchini	0:9fca2b23d0ba	1827	}
marcozecchini	0:9fca2b23d0ba	1828	get_achar(&nam); /* nam++ */
marcozecchini	0:9fca2b23d0ba	1829	} while (inf && nc); /* Retry until end of name if infinite search is specified */
marcozecchini	0:9fca2b23d0ba	1830
marcozecchini	0:9fca2b23d0ba	1831	return 0;
marcozecchini	0:9fca2b23d0ba	1832	}
marcozecchini	0:9fca2b23d0ba	1833	#endif /* _USE_FIND && _FS_MINIMIZE <= 1 */
marcozecchini	0:9fca2b23d0ba	1834
marcozecchini	0:9fca2b23d0ba	1835
marcozecchini	0:9fca2b23d0ba	1836
marcozecchini	0:9fca2b23d0ba	1837
marcozecchini	0:9fca2b23d0ba	1838	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1839	/* Pick a top segment and create the object name in directory form */
marcozecchini	0:9fca2b23d0ba	1840	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	1841
marcozecchini	0:9fca2b23d0ba	1842	static
marcozecchini	0:9fca2b23d0ba	1843	FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */
marcozecchini	0:9fca2b23d0ba	1844	FATFS_DIR* dp, /* Pointer to the directory object */
marcozecchini	0:9fca2b23d0ba	1845	const TCHAR** path /* Pointer to pointer to the segment in the path string */
marcozecchini	0:9fca2b23d0ba	1846	)
marcozecchini	0:9fca2b23d0ba	1847	{
marcozecchini	0:9fca2b23d0ba	1848	#if _USE_LFN /* LFN configuration */
marcozecchini	0:9fca2b23d0ba	1849	BYTE b, cf;
marcozecchini	0:9fca2b23d0ba	1850	WCHAR w, *lfn;
marcozecchini	0:9fca2b23d0ba	1851	UINT i, ni, si, di;
marcozecchini	0:9fca2b23d0ba	1852	const TCHAR *p;
marcozecchini	0:9fca2b23d0ba	1853
marcozecchini	0:9fca2b23d0ba	1854	/* Create LFN in Unicode */
marcozecchini	0:9fca2b23d0ba	1855	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
marcozecchini	0:9fca2b23d0ba	1856	lfn = dp->lfn;
marcozecchini	0:9fca2b23d0ba	1857	si = di = 0;
marcozecchini	0:9fca2b23d0ba	1858	for (;;) {
marcozecchini	0:9fca2b23d0ba	1859	w = p[si++]; /* Get a character */
marcozecchini	0:9fca2b23d0ba	1860	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
marcozecchini	0:9fca2b23d0ba	1861	if (di >= _MAX_LFN) /* Reject too long name */
marcozecchini	0:9fca2b23d0ba	1862	return FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	1863	#if !_LFN_UNICODE
marcozecchini	0:9fca2b23d0ba	1864	w &= 0xFF;
marcozecchini	0:9fca2b23d0ba	1865	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
marcozecchini	0:9fca2b23d0ba	1866	b = (BYTE)p[si++]; /* Get 2nd byte */
marcozecchini	0:9fca2b23d0ba	1867	w = (w << 8) + b; /* Create a DBC */
marcozecchini	0:9fca2b23d0ba	1868	if (!IsDBCS2(b))
marcozecchini	0:9fca2b23d0ba	1869	return FR_INVALID_NAME; /* Reject invalid sequence */
marcozecchini	0:9fca2b23d0ba	1870	}
marcozecchini	0:9fca2b23d0ba	1871	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
marcozecchini	0:9fca2b23d0ba	1872	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
marcozecchini	0:9fca2b23d0ba	1873	#endif
marcozecchini	0:9fca2b23d0ba	1874	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal characters for LFN */
marcozecchini	0:9fca2b23d0ba	1875	return FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	1876	lfn[di++] = w; /* Store the Unicode character */
marcozecchini	0:9fca2b23d0ba	1877	}
marcozecchini	0:9fca2b23d0ba	1878	path = &p[si]; / Return pointer to the next segment */
marcozecchini	0:9fca2b23d0ba	1879	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
marcozecchini	0:9fca2b23d0ba	1880	#if _FS_RPATH
marcozecchini	0:9fca2b23d0ba	1881	if ((di == 1 && lfn[di - 1] == '.') \|\|
marcozecchini	0:9fca2b23d0ba	1882	(di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot entry? */
marcozecchini	0:9fca2b23d0ba	1883	lfn[di] = 0;
marcozecchini	0:9fca2b23d0ba	1884	for (i = 0; i < 11; i++) /* Create dot name for SFN entry */
marcozecchini	0:9fca2b23d0ba	1885	dp->fn[i] = (i < di) ? '.' : ' ';
marcozecchini	0:9fca2b23d0ba	1886	dp->fn[i] = cf \| NS_DOT; /* This is a dot entry */
marcozecchini	0:9fca2b23d0ba	1887	return FR_OK;
marcozecchini	0:9fca2b23d0ba	1888	}
marcozecchini	0:9fca2b23d0ba	1889	#endif
marcozecchini	0:9fca2b23d0ba	1890	while (di) { /* Snip off trailing spaces and dots if exist */
marcozecchini	0:9fca2b23d0ba	1891	w = lfn[di - 1];
marcozecchini	0:9fca2b23d0ba	1892	if (w != ' ' && w != '.') break;
marcozecchini	0:9fca2b23d0ba	1893	di--;
marcozecchini	0:9fca2b23d0ba	1894	}
marcozecchini	0:9fca2b23d0ba	1895	if (!di) return FR_INVALID_NAME; /* Reject nul string */
marcozecchini	0:9fca2b23d0ba	1896	lfn[di] = 0; /* LFN is created */
marcozecchini	0:9fca2b23d0ba	1897
marcozecchini	0:9fca2b23d0ba	1898	/* Create SFN in directory form */
marcozecchini	0:9fca2b23d0ba	1899	mem_set(dp->fn, ' ', 11);
marcozecchini	0:9fca2b23d0ba	1900	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
marcozecchini	0:9fca2b23d0ba	1901	if (si) cf \|= NS_LOSS \| NS_LFN;
marcozecchini	0:9fca2b23d0ba	1902	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
marcozecchini	0:9fca2b23d0ba	1903
marcozecchini	0:9fca2b23d0ba	1904	b = i = 0; ni = 8;
marcozecchini	0:9fca2b23d0ba	1905	for (;;) {
marcozecchini	0:9fca2b23d0ba	1906	w = lfn[si++]; /* Get an LFN character */
marcozecchini	0:9fca2b23d0ba	1907	if (!w) break; /* Break on end of the LFN */
marcozecchini	0:9fca2b23d0ba	1908	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
marcozecchini	0:9fca2b23d0ba	1909	cf \|= NS_LOSS \| NS_LFN; continue;
marcozecchini	0:9fca2b23d0ba	1910	}
marcozecchini	0:9fca2b23d0ba	1911
marcozecchini	0:9fca2b23d0ba	1912	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
marcozecchini	0:9fca2b23d0ba	1913	if (ni == 11) { /* Long extension */
marcozecchini	0:9fca2b23d0ba	1914	cf \|= NS_LOSS \| NS_LFN; break;
marcozecchini	0:9fca2b23d0ba	1915	}
marcozecchini	0:9fca2b23d0ba	1916	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
marcozecchini	0:9fca2b23d0ba	1917	if (si > di) break; /* No extension */
marcozecchini	0:9fca2b23d0ba	1918	si = di; i = 8; ni = 11; /* Enter extension section */
marcozecchini	0:9fca2b23d0ba	1919	b <<= 2; continue;
marcozecchini	0:9fca2b23d0ba	1920	}
marcozecchini	0:9fca2b23d0ba	1921
marcozecchini	0:9fca2b23d0ba	1922	if (w >= 0x80) { /* Non ASCII character */
marcozecchini	0:9fca2b23d0ba	1923	#ifdef _EXCVT
marcozecchini	0:9fca2b23d0ba	1924	w = ff_convert(w, 0); /* Unicode -> OEM code */
marcozecchini	0:9fca2b23d0ba	1925	if (w) w = ExCvt[w - 0x80]; /* Convert extended character to upper (SBCS) */
marcozecchini	0:9fca2b23d0ba	1926	#else
marcozecchini	0:9fca2b23d0ba	1927	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
marcozecchini	0:9fca2b23d0ba	1928	#endif
marcozecchini	0:9fca2b23d0ba	1929	cf \|= NS_LFN; /* Force create LFN entry */
marcozecchini	0:9fca2b23d0ba	1930	}
marcozecchini	0:9fca2b23d0ba	1931
marcozecchini	0:9fca2b23d0ba	1932	if (_DF1S && w >= 0x100) { /* Is this DBC? (always false at SBCS cfg) */
marcozecchini	0:9fca2b23d0ba	1933	if (i >= ni - 1) {
marcozecchini	0:9fca2b23d0ba	1934	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
marcozecchini	0:9fca2b23d0ba	1935	}
marcozecchini	0:9fca2b23d0ba	1936	dp->fn[i++] = (BYTE)(w >> 8);
marcozecchini	0:9fca2b23d0ba	1937	} else { /* SBC */
marcozecchini	0:9fca2b23d0ba	1938	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal characters for SFN */
marcozecchini	0:9fca2b23d0ba	1939	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
marcozecchini	0:9fca2b23d0ba	1940	} else {
marcozecchini	0:9fca2b23d0ba	1941	if (IsUpper(w)) { /* ASCII large capital */
marcozecchini	0:9fca2b23d0ba	1942	b \|= 2;
marcozecchini	0:9fca2b23d0ba	1943	} else {
marcozecchini	0:9fca2b23d0ba	1944	if (IsLower(w)) { /* ASCII small capital */
marcozecchini	0:9fca2b23d0ba	1945	b \|= 1; w -= 0x20;
marcozecchini	0:9fca2b23d0ba	1946	}
marcozecchini	0:9fca2b23d0ba	1947	}
marcozecchini	0:9fca2b23d0ba	1948	}
marcozecchini	0:9fca2b23d0ba	1949	}
marcozecchini	0:9fca2b23d0ba	1950	dp->fn[i++] = (BYTE)w;
marcozecchini	0:9fca2b23d0ba	1951	}
marcozecchini	0:9fca2b23d0ba	1952
marcozecchini	0:9fca2b23d0ba	1953	if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */
marcozecchini	0:9fca2b23d0ba	1954
marcozecchini	0:9fca2b23d0ba	1955	if (ni == 8) b <<= 2;
marcozecchini	0:9fca2b23d0ba	1956	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
marcozecchini	0:9fca2b23d0ba	1957	cf \|= NS_LFN;
marcozecchini	0:9fca2b23d0ba	1958	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */
marcozecchini	0:9fca2b23d0ba	1959	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
marcozecchini	0:9fca2b23d0ba	1960	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
marcozecchini	0:9fca2b23d0ba	1961	}
marcozecchini	0:9fca2b23d0ba	1962
marcozecchini	0:9fca2b23d0ba	1963	dp->fn[NSFLAG] = cf; /* SFN is created */
marcozecchini	0:9fca2b23d0ba	1964
marcozecchini	0:9fca2b23d0ba	1965	return FR_OK;
marcozecchini	0:9fca2b23d0ba	1966
marcozecchini	0:9fca2b23d0ba	1967
marcozecchini	0:9fca2b23d0ba	1968	#else /* Non-LFN configuration */
marcozecchini	0:9fca2b23d0ba	1969	BYTE b, c, d, *sfn;
marcozecchini	0:9fca2b23d0ba	1970	UINT ni, si, i;
marcozecchini	0:9fca2b23d0ba	1971	const char *p;
marcozecchini	0:9fca2b23d0ba	1972
marcozecchini	0:9fca2b23d0ba	1973	/* Create file name in directory form */
marcozecchini	0:9fca2b23d0ba	1974	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Skip duplicated separator */
marcozecchini	0:9fca2b23d0ba	1975	sfn = dp->fn;
marcozecchini	0:9fca2b23d0ba	1976	mem_set(sfn, ' ', 11);
marcozecchini	0:9fca2b23d0ba	1977	si = i = b = 0; ni = 8;
marcozecchini	0:9fca2b23d0ba	1978	#if _FS_RPATH
marcozecchini	0:9fca2b23d0ba	1979	if (p[si] == '.') { /* Is this a dot entry? */
marcozecchini	0:9fca2b23d0ba	1980	for (;;) {
marcozecchini	0:9fca2b23d0ba	1981	c = (BYTE)p[si++];
marcozecchini	0:9fca2b23d0ba	1982	if (c != '.' \|\| si >= 3) break;
marcozecchini	0:9fca2b23d0ba	1983	sfn[i++] = c;
marcozecchini	0:9fca2b23d0ba	1984	}
marcozecchini	0:9fca2b23d0ba	1985	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	1986	path = &p[si]; / Return pointer to the next segment */
marcozecchini	0:9fca2b23d0ba	1987	sfn[NSFLAG] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
marcozecchini	0:9fca2b23d0ba	1988	return FR_OK;
marcozecchini	0:9fca2b23d0ba	1989	}
marcozecchini	0:9fca2b23d0ba	1990	#endif
marcozecchini	0:9fca2b23d0ba	1991	for (;;) {
marcozecchini	0:9fca2b23d0ba	1992	c = (BYTE)p[si++];
marcozecchini	0:9fca2b23d0ba	1993	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
marcozecchini	0:9fca2b23d0ba	1994	if (c == '.' \|\| i >= ni) {
marcozecchini	0:9fca2b23d0ba	1995	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	1996	i = 8; ni = 11;
marcozecchini	0:9fca2b23d0ba	1997	b <<= 2; continue;
marcozecchini	0:9fca2b23d0ba	1998	}
marcozecchini	0:9fca2b23d0ba	1999	if (c >= 0x80) { /* Extended character? */
marcozecchini	0:9fca2b23d0ba	2000	b \|= 3; /* Eliminate NT flag */
marcozecchini	0:9fca2b23d0ba	2001	#ifdef _EXCVT
marcozecchini	0:9fca2b23d0ba	2002	c = ExCvt[c - 0x80]; /* To upper extended characters (SBCS cfg) */
marcozecchini	0:9fca2b23d0ba	2003	#else
marcozecchini	0:9fca2b23d0ba	2004	#if !_DF1S
marcozecchini	0:9fca2b23d0ba	2005	return FR_INVALID_NAME; /* Reject extended characters (ASCII cfg) */
marcozecchini	0:9fca2b23d0ba	2006	#endif
marcozecchini	0:9fca2b23d0ba	2007	#endif
marcozecchini	0:9fca2b23d0ba	2008	}
marcozecchini	0:9fca2b23d0ba	2009	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false at SBCS cfg.) */
marcozecchini	0:9fca2b23d0ba	2010	d = (BYTE)p[si++]; /* Get 2nd byte */
marcozecchini	0:9fca2b23d0ba	2011	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
marcozecchini	0:9fca2b23d0ba	2012	return FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	2013	sfn[i++] = c;
marcozecchini	0:9fca2b23d0ba	2014	sfn[i++] = d;
marcozecchini	0:9fca2b23d0ba	2015	} else { /* SBC */
marcozecchini	0:9fca2b23d0ba	2016	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
marcozecchini	0:9fca2b23d0ba	2017	return FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	2018	if (IsUpper(c)) { /* ASCII large capital? */
marcozecchini	0:9fca2b23d0ba	2019	b \|= 2;
marcozecchini	0:9fca2b23d0ba	2020	} else {
marcozecchini	0:9fca2b23d0ba	2021	if (IsLower(c)) { /* ASCII small capital? */
marcozecchini	0:9fca2b23d0ba	2022	b \|= 1; c -= 0x20;
marcozecchini	0:9fca2b23d0ba	2023	}
marcozecchini	0:9fca2b23d0ba	2024	}
marcozecchini	0:9fca2b23d0ba	2025	sfn[i++] = c;
marcozecchini	0:9fca2b23d0ba	2026	}
marcozecchini	0:9fca2b23d0ba	2027	}
marcozecchini	0:9fca2b23d0ba	2028	path = &p[si]; / Return pointer to the next segment */
marcozecchini	0:9fca2b23d0ba	2029	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
marcozecchini	0:9fca2b23d0ba	2030
marcozecchini	0:9fca2b23d0ba	2031	if (!i) return FR_INVALID_NAME; /* Reject nul string */
marcozecchini	0:9fca2b23d0ba	2032	if (sfn[0] == DDEM) sfn[0] = RDDEM; /* When first character collides with DDEM, replace it with RDDEM */
marcozecchini	0:9fca2b23d0ba	2033
marcozecchini	0:9fca2b23d0ba	2034	if (ni == 8) b <<= 2;
marcozecchini	0:9fca2b23d0ba	2035	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
marcozecchini	0:9fca2b23d0ba	2036	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
marcozecchini	0:9fca2b23d0ba	2037
marcozecchini	0:9fca2b23d0ba	2038	sfn[NSFLAG] = c; /* Store NT flag, File name is created */
marcozecchini	0:9fca2b23d0ba	2039
marcozecchini	0:9fca2b23d0ba	2040	return FR_OK;
marcozecchini	0:9fca2b23d0ba	2041	#endif
marcozecchini	0:9fca2b23d0ba	2042	}
marcozecchini	0:9fca2b23d0ba	2043
marcozecchini	0:9fca2b23d0ba	2044
marcozecchini	0:9fca2b23d0ba	2045
marcozecchini	0:9fca2b23d0ba	2046
marcozecchini	0:9fca2b23d0ba	2047	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2048	/* Follow a file path */
marcozecchini	0:9fca2b23d0ba	2049	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2050
marcozecchini	0:9fca2b23d0ba	2051	static
marcozecchini	0:9fca2b23d0ba	2052	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
marcozecchini	0:9fca2b23d0ba	2053	FATFS_DIR* dp, /* Directory object to return last directory and found object */
marcozecchini	0:9fca2b23d0ba	2054	const TCHAR* path /* Full-path string to find a file or directory */
marcozecchini	0:9fca2b23d0ba	2055	)
marcozecchini	0:9fca2b23d0ba	2056	{
marcozecchini	0:9fca2b23d0ba	2057	FRESULT res;
marcozecchini	0:9fca2b23d0ba	2058	BYTE *dir, ns;
marcozecchini	0:9fca2b23d0ba	2059
marcozecchini	0:9fca2b23d0ba	2060
marcozecchini	0:9fca2b23d0ba	2061	#if _FS_RPATH
marcozecchini	0:9fca2b23d0ba	2062	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
marcozecchini	0:9fca2b23d0ba	2063	path++; dp->sclust = 0; /* Strip it and start from the root directory */
marcozecchini	0:9fca2b23d0ba	2064	} else { /* No heading separator */
marcozecchini	0:9fca2b23d0ba	2065	dp->sclust = dp->fs->cdir; /* Start from the current directory */
marcozecchini	0:9fca2b23d0ba	2066	}
marcozecchini	0:9fca2b23d0ba	2067	#else
marcozecchini	0:9fca2b23d0ba	2068	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
marcozecchini	0:9fca2b23d0ba	2069	path++;
marcozecchini	0:9fca2b23d0ba	2070	dp->sclust = 0; /* Always start from the root directory */
marcozecchini	0:9fca2b23d0ba	2071	#endif
marcozecchini	0:9fca2b23d0ba	2072
marcozecchini	0:9fca2b23d0ba	2073	if ((UINT)path < ' ') { / Null path name is the origin directory itself */
marcozecchini	0:9fca2b23d0ba	2074	res = dir_sdi(dp, 0);
marcozecchini	0:9fca2b23d0ba	2075	dp->dir = 0;
marcozecchini	0:9fca2b23d0ba	2076	} else { /* Follow path */
marcozecchini	0:9fca2b23d0ba	2077	for (;;) {
marcozecchini	0:9fca2b23d0ba	2078	res = create_name(dp, &path); /* Get a segment name of the path */
marcozecchini	0:9fca2b23d0ba	2079	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	2080	res = dir_find(dp); /* Find an object with the sagment name */
marcozecchini	0:9fca2b23d0ba	2081	ns = dp->fn[NSFLAG];
marcozecchini	0:9fca2b23d0ba	2082	if (res != FR_OK) { /* Failed to find the object */
marcozecchini	0:9fca2b23d0ba	2083	if (res == FR_NO_FILE) { /* Object is not found */
marcozecchini	0:9fca2b23d0ba	2084	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, */
marcozecchini	0:9fca2b23d0ba	2085	dp->sclust = 0; dp->dir = 0; /* it is the root directory and stay there */
marcozecchini	0:9fca2b23d0ba	2086	if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */
marcozecchini	0:9fca2b23d0ba	2087	res = FR_OK; /* Ended at the root directroy. Function completed. */
marcozecchini	0:9fca2b23d0ba	2088	} else { /* Could not find the object */
marcozecchini	0:9fca2b23d0ba	2089	if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */
marcozecchini	0:9fca2b23d0ba	2090	}
marcozecchini	0:9fca2b23d0ba	2091	}
marcozecchini	0:9fca2b23d0ba	2092	break;
marcozecchini	0:9fca2b23d0ba	2093	}
marcozecchini	0:9fca2b23d0ba	2094	if (ns & NS_LAST) break; /* Last segment matched. Function completed. */
marcozecchini	0:9fca2b23d0ba	2095	dir = dp->dir; /* Follow the sub-directory */
marcozecchini	0:9fca2b23d0ba	2096	if (!(dir[DIR_Attr] & AM_DIR)) { /* It is not a sub-directory and cannot follow */
marcozecchini	0:9fca2b23d0ba	2097	res = FR_NO_PATH; break;
marcozecchini	0:9fca2b23d0ba	2098	}
marcozecchini	0:9fca2b23d0ba	2099	dp->sclust = ld_clust(dp->fs, dir);
marcozecchini	0:9fca2b23d0ba	2100	}
marcozecchini	0:9fca2b23d0ba	2101	}
marcozecchini	0:9fca2b23d0ba	2102
marcozecchini	0:9fca2b23d0ba	2103	return res;
marcozecchini	0:9fca2b23d0ba	2104	}
marcozecchini	0:9fca2b23d0ba	2105
marcozecchini	0:9fca2b23d0ba	2106
marcozecchini	0:9fca2b23d0ba	2107
marcozecchini	0:9fca2b23d0ba	2108
marcozecchini	0:9fca2b23d0ba	2109	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2110	/* Get logical drive number from path name */
marcozecchini	0:9fca2b23d0ba	2111	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2112
marcozecchini	0:9fca2b23d0ba	2113	static
marcozecchini	0:9fca2b23d0ba	2114	int get_ldnumber ( /* Returns logical drive number (-1:invalid drive) */
marcozecchini	0:9fca2b23d0ba	2115	const TCHAR** path /* Pointer to pointer to the path name */
marcozecchini	0:9fca2b23d0ba	2116	)
marcozecchini	0:9fca2b23d0ba	2117	{
marcozecchini	0:9fca2b23d0ba	2118	const TCHAR tp, tt;
marcozecchini	0:9fca2b23d0ba	2119	UINT i;
marcozecchini	0:9fca2b23d0ba	2120	int vol = -1;
marcozecchini	0:9fca2b23d0ba	2121	#if _STR_VOLUME_ID /* Find string drive id */
marcozecchini	0:9fca2b23d0ba	2122	static const char* const str[] = {_VOLUME_STRS};
marcozecchini	0:9fca2b23d0ba	2123	const char *sp;
marcozecchini	0:9fca2b23d0ba	2124	char c;
marcozecchini	0:9fca2b23d0ba	2125	TCHAR tc;
marcozecchini	0:9fca2b23d0ba	2126	#endif
marcozecchini	0:9fca2b23d0ba	2127
marcozecchini	0:9fca2b23d0ba	2128
marcozecchini	0:9fca2b23d0ba	2129	if (path) { / If the pointer is not a null */
marcozecchini	0:9fca2b23d0ba	2130	for (tt = path; (UINT)tt >= (_USE_LFN ? ' ' : '!') && tt != ':'; tt++) ; / Find ':' in the path */
marcozecchini	0:9fca2b23d0ba	2131	if (tt == ':') { / If a ':' is exist in the path name */
marcozecchini	0:9fca2b23d0ba	2132	tp = *path;
marcozecchini	0:9fca2b23d0ba	2133	i = *tp++ - '0';
marcozecchini	0:9fca2b23d0ba	2134	if (i < 10 && tp == tt) { /* Is there a numeric drive id? */
marcozecchini	0:9fca2b23d0ba	2135	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
marcozecchini	0:9fca2b23d0ba	2136	vol = (int)i;
marcozecchini	0:9fca2b23d0ba	2137	*path = ++tt;
marcozecchini	0:9fca2b23d0ba	2138	}
marcozecchini	0:9fca2b23d0ba	2139	}
marcozecchini	0:9fca2b23d0ba	2140	#if _STR_VOLUME_ID
marcozecchini	0:9fca2b23d0ba	2141	else { /* No numeric drive number, find string drive id */
marcozecchini	0:9fca2b23d0ba	2142	i = 0; tt++;
marcozecchini	0:9fca2b23d0ba	2143	do {
marcozecchini	0:9fca2b23d0ba	2144	sp = str[i]; tp = *path;
marcozecchini	0:9fca2b23d0ba	2145	do { /* Compare a string drive id with path name */
marcozecchini	0:9fca2b23d0ba	2146	c = sp++; tc = tp++;
marcozecchini	0:9fca2b23d0ba	2147	if (IsLower(tc)) tc -= 0x20;
marcozecchini	0:9fca2b23d0ba	2148	} while (c && (TCHAR)c == tc);
marcozecchini	0:9fca2b23d0ba	2149	} while ((c \|\| tp != tt) && ++i < _VOLUMES); /* Repeat for each id until pattern match */
marcozecchini	0:9fca2b23d0ba	2150	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
marcozecchini	0:9fca2b23d0ba	2151	vol = (int)i;
marcozecchini	0:9fca2b23d0ba	2152	*path = tt;
marcozecchini	0:9fca2b23d0ba	2153	}
marcozecchini	0:9fca2b23d0ba	2154	}
marcozecchini	0:9fca2b23d0ba	2155	#endif
marcozecchini	0:9fca2b23d0ba	2156	return vol;
marcozecchini	0:9fca2b23d0ba	2157	}
marcozecchini	0:9fca2b23d0ba	2158	#if _FS_RPATH && _VOLUMES >= 2
marcozecchini	0:9fca2b23d0ba	2159	vol = CurrVol; /* Current drive */
marcozecchini	0:9fca2b23d0ba	2160	#else
marcozecchini	0:9fca2b23d0ba	2161	vol = 0; /* Drive 0 */
marcozecchini	0:9fca2b23d0ba	2162	#endif
marcozecchini	0:9fca2b23d0ba	2163	}
marcozecchini	0:9fca2b23d0ba	2164	return vol;
marcozecchini	0:9fca2b23d0ba	2165	}
marcozecchini	0:9fca2b23d0ba	2166
marcozecchini	0:9fca2b23d0ba	2167
marcozecchini	0:9fca2b23d0ba	2168
marcozecchini	0:9fca2b23d0ba	2169
marcozecchini	0:9fca2b23d0ba	2170	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2171	/* Load a sector and check if it is an FAT boot sector */
marcozecchini	0:9fca2b23d0ba	2172	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2173
marcozecchini	0:9fca2b23d0ba	2174	static
marcozecchini	0:9fca2b23d0ba	2175	BYTE check_fs ( /* 0:Valid FAT-BS, 1:Valid BS but not FAT, 2:Not a BS, 3:Disk error */
marcozecchini	0:9fca2b23d0ba	2176	FATFS* fs, /* File system object */
marcozecchini	0:9fca2b23d0ba	2177	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
marcozecchini	0:9fca2b23d0ba	2178	)
marcozecchini	0:9fca2b23d0ba	2179	{
marcozecchini	0:9fca2b23d0ba	2180	fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */
marcozecchini	0:9fca2b23d0ba	2181	if (move_window(fs, sect) != FR_OK) /* Load boot record */
marcozecchini	0:9fca2b23d0ba	2182	return 3;
marcozecchini	0:9fca2b23d0ba	2183
marcozecchini	0:9fca2b23d0ba	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) */
marcozecchini	0:9fca2b23d0ba	2185	return 2;
marcozecchini	0:9fca2b23d0ba	2186
marcozecchini	0:9fca2b23d0ba	2187	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
marcozecchini	0:9fca2b23d0ba	2188	return 0;
marcozecchini	0:9fca2b23d0ba	2189	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
marcozecchini	0:9fca2b23d0ba	2190	return 0;
marcozecchini	0:9fca2b23d0ba	2191
marcozecchini	0:9fca2b23d0ba	2192	return 1;
marcozecchini	0:9fca2b23d0ba	2193	}
marcozecchini	0:9fca2b23d0ba	2194
marcozecchini	0:9fca2b23d0ba	2195
marcozecchini	0:9fca2b23d0ba	2196
marcozecchini	0:9fca2b23d0ba	2197
marcozecchini	0:9fca2b23d0ba	2198	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2199	/* Find logical drive and check if the volume is mounted */
marcozecchini	0:9fca2b23d0ba	2200	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2201
marcozecchini	0:9fca2b23d0ba	2202	static
marcozecchini	0:9fca2b23d0ba	2203	FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */
marcozecchini	0:9fca2b23d0ba	2204	FATFS** rfs, /* Pointer to pointer to the found file system object */
marcozecchini	0:9fca2b23d0ba	2205	const TCHAR** path, /* Pointer to pointer to the path name (drive number) */
marcozecchini	0:9fca2b23d0ba	2206	BYTE wmode /* !=0: Check write protection for write access */
marcozecchini	0:9fca2b23d0ba	2207	)
marcozecchini	0:9fca2b23d0ba	2208	{
marcozecchini	0:9fca2b23d0ba	2209	BYTE fmt, *pt;
marcozecchini	0:9fca2b23d0ba	2210	int vol;
marcozecchini	0:9fca2b23d0ba	2211	DSTATUS stat;
marcozecchini	0:9fca2b23d0ba	2212	DWORD bsect, fasize, tsect, sysect, nclst, szbfat, br[4];
marcozecchini	0:9fca2b23d0ba	2213	WORD nrsv;
marcozecchini	0:9fca2b23d0ba	2214	FATFS *fs;
marcozecchini	0:9fca2b23d0ba	2215	UINT i;
marcozecchini	0:9fca2b23d0ba	2216
marcozecchini	0:9fca2b23d0ba	2217
marcozecchini	0:9fca2b23d0ba	2218	/* Get logical drive number from the path name */
marcozecchini	0:9fca2b23d0ba	2219	*rfs = 0;
marcozecchini	0:9fca2b23d0ba	2220	vol = get_ldnumber(path);
marcozecchini	0:9fca2b23d0ba	2221	if (vol < 0) return FR_INVALID_DRIVE;
marcozecchini	0:9fca2b23d0ba	2222
marcozecchini	0:9fca2b23d0ba	2223	/* Check if the file system object is valid or not */
marcozecchini	0:9fca2b23d0ba	2224	fs = FatFs[vol]; /* Get pointer to the file system object */
marcozecchini	0:9fca2b23d0ba	2225	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
marcozecchini	0:9fca2b23d0ba	2226
marcozecchini	0:9fca2b23d0ba	2227	ENTER_FF(fs); /* Lock the volume */
marcozecchini	0:9fca2b23d0ba	2228	rfs = fs; / Return pointer to the file system object */
marcozecchini	0:9fca2b23d0ba	2229
marcozecchini	0:9fca2b23d0ba	2230	if (fs->fs_type) { /* If the volume has been mounted */
marcozecchini	0:9fca2b23d0ba	2231	stat = disk_status(fs->drv);
marcozecchini	0:9fca2b23d0ba	2232	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */
marcozecchini	0:9fca2b23d0ba	2233	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
marcozecchini	0:9fca2b23d0ba	2234	return FR_WRITE_PROTECTED;
marcozecchini	0:9fca2b23d0ba	2235	return FR_OK; /* The file system object is valid */
marcozecchini	0:9fca2b23d0ba	2236	}
marcozecchini	0:9fca2b23d0ba	2237	}
marcozecchini	0:9fca2b23d0ba	2238
marcozecchini	0:9fca2b23d0ba	2239	/* The file system object is not valid. */
marcozecchini	0:9fca2b23d0ba	2240	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
marcozecchini	0:9fca2b23d0ba	2241
marcozecchini	0:9fca2b23d0ba	2242	fs->fs_type = 0; /* Clear the file system object */
marcozecchini	0:9fca2b23d0ba	2243	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
marcozecchini	0:9fca2b23d0ba	2244	stat = disk_initialize(fs->drv); /* Initialize the physical drive */
marcozecchini	0:9fca2b23d0ba	2245	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
marcozecchini	0:9fca2b23d0ba	2246	return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
marcozecchini	0:9fca2b23d0ba	2247	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
marcozecchini	0:9fca2b23d0ba	2248	return FR_WRITE_PROTECTED;
marcozecchini	0:9fca2b23d0ba	2249	#if _MAX_SS != _MIN_SS /* Get sector size (multiple sector size cfg only) */
marcozecchini	0:9fca2b23d0ba	2250	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
marcozecchini	0:9fca2b23d0ba	2251	\|\| SS(fs) < _MIN_SS \|\| SS(fs) > _MAX_SS) return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	2252	#endif
marcozecchini	0:9fca2b23d0ba	2253	#if _FS_HEAPBUF
marcozecchini	0:9fca2b23d0ba	2254	if (!fs->win) {
marcozecchini	0:9fca2b23d0ba	2255	fs->win = (BYTE)ff_memalloc(SS(fs)); / Allocate buffer to back window if necessary */
marcozecchini	0:9fca2b23d0ba	2256	if (!fs->win)
marcozecchini	0:9fca2b23d0ba	2257	return FR_NOT_ENOUGH_CORE;
marcozecchini	0:9fca2b23d0ba	2258	}
marcozecchini	0:9fca2b23d0ba	2259	#endif
marcozecchini	0:9fca2b23d0ba	2260	/* Find an FAT partition on the drive. Supports only generic partitioning, FDISK and SFD. */
marcozecchini	0:9fca2b23d0ba	2261	bsect = 0;
marcozecchini	0:9fca2b23d0ba	2262	fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT boot sector as SFD */
marcozecchini	0:9fca2b23d0ba	2263	if (fmt == 1 \|\| (!fmt && (LD2PT(vol)))) { /* Not an FAT boot sector or forced partition number */
marcozecchini	0:9fca2b23d0ba	2264	for (i = 0; i < 4; i++) { /* Get partition offset */
marcozecchini	0:9fca2b23d0ba	2265	pt = fs->win + MBR_Table + i * SZ_PTE;
marcozecchini	0:9fca2b23d0ba	2266	br[i] = pt[4] ? LD_DWORD(&pt[8]) : 0;
marcozecchini	0:9fca2b23d0ba	2267	}
marcozecchini	0:9fca2b23d0ba	2268	i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */
marcozecchini	0:9fca2b23d0ba	2269	if (i) i--;
marcozecchini	0:9fca2b23d0ba	2270	do { /* Find an FAT volume */
marcozecchini	0:9fca2b23d0ba	2271	bsect = br[i];
marcozecchini	0:9fca2b23d0ba	2272	fmt = bsect ? check_fs(fs, bsect) : 2; /* Check the partition */
marcozecchini	0:9fca2b23d0ba	2273	} while (!LD2PT(vol) && fmt && ++i < 4);
marcozecchini	0:9fca2b23d0ba	2274	}
marcozecchini	0:9fca2b23d0ba	2275	if (fmt == 3) return FR_DISK_ERR; /* An error occured in the disk I/O layer */
marcozecchini	0:9fca2b23d0ba	2276	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
marcozecchini	0:9fca2b23d0ba	2277
marcozecchini	0:9fca2b23d0ba	2278	/* An FAT volume is found. Following code initializes the file system object */
marcozecchini	0:9fca2b23d0ba	2279
marcozecchini	0:9fca2b23d0ba	2280	if (LD_WORD(fs->win + BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
marcozecchini	0:9fca2b23d0ba	2281	return FR_NO_FILESYSTEM;
marcozecchini	0:9fca2b23d0ba	2282
marcozecchini	0:9fca2b23d0ba	2283	fasize = LD_WORD(fs->win + BPB_FATSz16); /* Number of sectors per FAT */
marcozecchini	0:9fca2b23d0ba	2284	if (!fasize) fasize = LD_DWORD(fs->win + BPB_FATSz32);
marcozecchini	0:9fca2b23d0ba	2285	fs->fsize = fasize;
marcozecchini	0:9fca2b23d0ba	2286
marcozecchini	0:9fca2b23d0ba	2287	fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */
marcozecchini	0:9fca2b23d0ba	2288	if (fs->n_fats != 1 && fs->n_fats != 2) /* (Must be 1 or 2) */
marcozecchini	0:9fca2b23d0ba	2289	return FR_NO_FILESYSTEM;
marcozecchini	0:9fca2b23d0ba	2290	fasize = fs->n_fats; / Number of sectors for FAT area */
marcozecchini	0:9fca2b23d0ba	2291
marcozecchini	0:9fca2b23d0ba	2292	fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
marcozecchini	0:9fca2b23d0ba	2293	if (!fs->csize \|\| (fs->csize & (fs->csize - 1))) /* (Must be power of 2) */
marcozecchini	0:9fca2b23d0ba	2294	return FR_NO_FILESYSTEM;
marcozecchini	0:9fca2b23d0ba	2295
marcozecchini	0:9fca2b23d0ba	2296	fs->n_rootdir = LD_WORD(fs->win + BPB_RootEntCnt); /* Number of root directory entries */
marcozecchini	0:9fca2b23d0ba	2297	if (fs->n_rootdir % (SS(fs) / SZ_DIRE)) /* (Must be sector aligned) */
marcozecchini	0:9fca2b23d0ba	2298	return FR_NO_FILESYSTEM;
marcozecchini	0:9fca2b23d0ba	2299
marcozecchini	0:9fca2b23d0ba	2300	tsect = LD_WORD(fs->win + BPB_TotSec16); /* Number of sectors on the volume */
marcozecchini	0:9fca2b23d0ba	2301	if (!tsect) tsect = LD_DWORD(fs->win + BPB_TotSec32);
marcozecchini	0:9fca2b23d0ba	2302
marcozecchini	0:9fca2b23d0ba	2303	nrsv = LD_WORD(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */
marcozecchini	0:9fca2b23d0ba	2304	if (!nrsv) return FR_NO_FILESYSTEM; /* (Must not be 0) */
marcozecchini	0:9fca2b23d0ba	2305
marcozecchini	0:9fca2b23d0ba	2306	/* Determine the FAT sub type */
marcozecchini	0:9fca2b23d0ba	2307	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIRE); /* RSV + FAT + FATFS_DIR */
marcozecchini	0:9fca2b23d0ba	2308	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
marcozecchini	0:9fca2b23d0ba	2309	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
marcozecchini	0:9fca2b23d0ba	2310	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
marcozecchini	0:9fca2b23d0ba	2311	fmt = FS_FAT12;
marcozecchini	0:9fca2b23d0ba	2312	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
marcozecchini	0:9fca2b23d0ba	2313	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
marcozecchini	0:9fca2b23d0ba	2314
marcozecchini	0:9fca2b23d0ba	2315	/* Boundaries and Limits */
marcozecchini	0:9fca2b23d0ba	2316	fs->n_fatent = nclst + 2; /* Number of FAT entries */
marcozecchini	0:9fca2b23d0ba	2317	fs->volbase = bsect; /* Volume start sector */
marcozecchini	0:9fca2b23d0ba	2318	fs->fatbase = bsect + nrsv; /* FAT start sector */
marcozecchini	0:9fca2b23d0ba	2319	fs->database = bsect + sysect; /* Data start sector */
marcozecchini	0:9fca2b23d0ba	2320	if (fmt == FS_FAT32) {
marcozecchini	0:9fca2b23d0ba	2321	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
marcozecchini	0:9fca2b23d0ba	2322	fs->dirbase = LD_DWORD(fs->win + BPB_RootClus); /* Root directory start cluster */
marcozecchini	0:9fca2b23d0ba	2323	szbfat = fs->n_fatent * 4; /* (Needed FAT size) */
marcozecchini	0:9fca2b23d0ba	2324	} else {
marcozecchini	0:9fca2b23d0ba	2325	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
marcozecchini	0:9fca2b23d0ba	2326	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
marcozecchini	0:9fca2b23d0ba	2327	szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */
marcozecchini	0:9fca2b23d0ba	2328	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
marcozecchini	0:9fca2b23d0ba	2329	}
marcozecchini	0:9fca2b23d0ba	2330	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than the size needed) */
marcozecchini	0:9fca2b23d0ba	2331	return FR_NO_FILESYSTEM;
marcozecchini	0:9fca2b23d0ba	2332
marcozecchini	0:9fca2b23d0ba	2333	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	2334	/* Initialize cluster allocation information */
marcozecchini	0:9fca2b23d0ba	2335	fs->last_clust = fs->free_clust = 0xFFFFFFFF;
marcozecchini	0:9fca2b23d0ba	2336
marcozecchini	0:9fca2b23d0ba	2337	/* Get fsinfo if available */
marcozecchini	0:9fca2b23d0ba	2338	fs->fsi_flag = 0x80;
marcozecchini	0:9fca2b23d0ba	2339	#if (_FS_NOFSINFO & 3) != 3
marcozecchini	0:9fca2b23d0ba	2340	if (fmt == FS_FAT32 /* Enable FSINFO only if FAT32 and BPB_FSInfo == 1 */
marcozecchini	0:9fca2b23d0ba	2341	&& LD_WORD(fs->win + BPB_FSInfo) == 1
marcozecchini	0:9fca2b23d0ba	2342	&& move_window(fs, bsect + 1) == FR_OK)
marcozecchini	0:9fca2b23d0ba	2343	{
marcozecchini	0:9fca2b23d0ba	2344	fs->fsi_flag = 0;
marcozecchini	0:9fca2b23d0ba	2345	if (LD_WORD(fs->win + BS_55AA) == 0xAA55 /* Load FSINFO data if available */
marcozecchini	0:9fca2b23d0ba	2346	&& LD_DWORD(fs->win + FSI_LeadSig) == 0x41615252
marcozecchini	0:9fca2b23d0ba	2347	&& LD_DWORD(fs->win + FSI_StrucSig) == 0x61417272)
marcozecchini	0:9fca2b23d0ba	2348	{
marcozecchini	0:9fca2b23d0ba	2349	#if (_FS_NOFSINFO & 1) == 0
marcozecchini	0:9fca2b23d0ba	2350	fs->free_clust = LD_DWORD(fs->win + FSI_Free_Count);
marcozecchini	0:9fca2b23d0ba	2351	#endif
marcozecchini	0:9fca2b23d0ba	2352	#if (_FS_NOFSINFO & 2) == 0
marcozecchini	0:9fca2b23d0ba	2353	fs->last_clust = LD_DWORD(fs->win + FSI_Nxt_Free);
marcozecchini	0:9fca2b23d0ba	2354	#endif
marcozecchini	0:9fca2b23d0ba	2355	}
marcozecchini	0:9fca2b23d0ba	2356	}
marcozecchini	0:9fca2b23d0ba	2357	#endif
marcozecchini	0:9fca2b23d0ba	2358	#endif
marcozecchini	0:9fca2b23d0ba	2359	fs->fs_type = fmt; /* FAT sub-type */
marcozecchini	0:9fca2b23d0ba	2360	fs->id = ++Fsid; /* File system mount ID */
marcozecchini	0:9fca2b23d0ba	2361	#if _FS_RPATH
marcozecchini	0:9fca2b23d0ba	2362	fs->cdir = 0; /* Set current directory to root */
marcozecchini	0:9fca2b23d0ba	2363	#endif
marcozecchini	0:9fca2b23d0ba	2364	#if _FS_LOCK /* Clear file lock semaphores */
marcozecchini	0:9fca2b23d0ba	2365	clear_lock(fs);
marcozecchini	0:9fca2b23d0ba	2366	#endif
marcozecchini	0:9fca2b23d0ba	2367
marcozecchini	0:9fca2b23d0ba	2368	return FR_OK;
marcozecchini	0:9fca2b23d0ba	2369	}
marcozecchini	0:9fca2b23d0ba	2370
marcozecchini	0:9fca2b23d0ba	2371
marcozecchini	0:9fca2b23d0ba	2372
marcozecchini	0:9fca2b23d0ba	2373
marcozecchini	0:9fca2b23d0ba	2374	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2375	/* Check if the file/directory object is valid or not */
marcozecchini	0:9fca2b23d0ba	2376	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2377
marcozecchini	0:9fca2b23d0ba	2378	static
marcozecchini	0:9fca2b23d0ba	2379	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
marcozecchini	0:9fca2b23d0ba	2380	void* obj /* Pointer to the object FIL/FATFS_DIR to check validity */
marcozecchini	0:9fca2b23d0ba	2381	)
marcozecchini	0:9fca2b23d0ba	2382	{
marcozecchini	0:9fca2b23d0ba	2383	FIL fil = (FIL)obj; /* Assuming offset of .fs and .id in the FIL/FATFS_DIR structure is identical */
marcozecchini	0:9fca2b23d0ba	2384
marcozecchini	0:9fca2b23d0ba	2385
marcozecchini	0:9fca2b23d0ba	2386	if (!fil \|\| !fil->fs \|\| !fil->fs->fs_type \|\| fil->fs->id != fil->id \|\| (disk_status(fil->fs->drv) & STA_NOINIT))
marcozecchini	0:9fca2b23d0ba	2387	return FR_INVALID_OBJECT;
marcozecchini	0:9fca2b23d0ba	2388
marcozecchini	0:9fca2b23d0ba	2389	ENTER_FF(fil->fs); /* Lock file system */
marcozecchini	0:9fca2b23d0ba	2390
marcozecchini	0:9fca2b23d0ba	2391	return FR_OK;
marcozecchini	0:9fca2b23d0ba	2392	}
marcozecchini	0:9fca2b23d0ba	2393
marcozecchini	0:9fca2b23d0ba	2394
marcozecchini	0:9fca2b23d0ba	2395
marcozecchini	0:9fca2b23d0ba	2396
marcozecchini	0:9fca2b23d0ba	2397	/*--------------------------------------------------------------------------
marcozecchini	0:9fca2b23d0ba	2398
marcozecchini	0:9fca2b23d0ba	2399	Public Functions
marcozecchini	0:9fca2b23d0ba	2400
marcozecchini	0:9fca2b23d0ba	2401	---------------------------------------------------------------------------*/
marcozecchini	0:9fca2b23d0ba	2402
marcozecchini	0:9fca2b23d0ba	2403
marcozecchini	0:9fca2b23d0ba	2404
marcozecchini	0:9fca2b23d0ba	2405	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2406	/* Mount/Unmount a Logical Drive */
marcozecchini	0:9fca2b23d0ba	2407	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2408
marcozecchini	0:9fca2b23d0ba	2409	FRESULT f_mount (
marcozecchini	0:9fca2b23d0ba	2410	FATFS* fs, /* Pointer to the file system object (NULL:unmount)*/
marcozecchini	0:9fca2b23d0ba	2411	const TCHAR* path, /* Logical drive number to be mounted/unmounted */
marcozecchini	0:9fca2b23d0ba	2412	BYTE opt /* 0:Do not mount (delayed mount), 1:Mount immediately */
marcozecchini	0:9fca2b23d0ba	2413	)
marcozecchini	0:9fca2b23d0ba	2414	{
marcozecchini	0:9fca2b23d0ba	2415	FATFS *cfs;
marcozecchini	0:9fca2b23d0ba	2416	int vol;
marcozecchini	0:9fca2b23d0ba	2417	FRESULT res;
marcozecchini	0:9fca2b23d0ba	2418	const TCHAR *rp = path;
marcozecchini	0:9fca2b23d0ba	2419
marcozecchini	0:9fca2b23d0ba	2420
marcozecchini	0:9fca2b23d0ba	2421	vol = get_ldnumber(&rp);
marcozecchini	0:9fca2b23d0ba	2422	if (vol < 0) return FR_INVALID_DRIVE;
marcozecchini	0:9fca2b23d0ba	2423	cfs = FatFs[vol]; /* Pointer to fs object */
marcozecchini	0:9fca2b23d0ba	2424
marcozecchini	0:9fca2b23d0ba	2425	if (cfs) {
marcozecchini	0:9fca2b23d0ba	2426	#if _FS_LOCK
marcozecchini	0:9fca2b23d0ba	2427	clear_lock(cfs);
marcozecchini	0:9fca2b23d0ba	2428	#endif
marcozecchini	0:9fca2b23d0ba	2429	#if _FS_REENTRANT /* Discard sync object of the current volume */
marcozecchini	0:9fca2b23d0ba	2430	if (!ff_del_syncobj(cfs->sobj)) return FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	2431	#endif
marcozecchini	0:9fca2b23d0ba	2432	cfs->fs_type = 0; /* Clear old fs object */
marcozecchini	0:9fca2b23d0ba	2433	#if _FS_HEAPBUF
marcozecchini	0:9fca2b23d0ba	2434	ff_memfree(cfs->win); /* Clean up window buffer */
marcozecchini	0:9fca2b23d0ba	2435	#endif
marcozecchini	0:9fca2b23d0ba	2436	}
marcozecchini	0:9fca2b23d0ba	2437
marcozecchini	0:9fca2b23d0ba	2438	if (fs) {
marcozecchini	0:9fca2b23d0ba	2439	fs->fs_type = 0; /* Clear new fs object */
marcozecchini	0:9fca2b23d0ba	2440	#if _FS_REENTRANT /* Create sync object for the new volume */
marcozecchini	0:9fca2b23d0ba	2441	if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	2442	#endif
marcozecchini	0:9fca2b23d0ba	2443	#if _FS_HEAPBUF
marcozecchini	0:9fca2b23d0ba	2444	fs->win = 0; /* NULL buffer to prevent use of uninitialized buffer */
marcozecchini	0:9fca2b23d0ba	2445	#endif
marcozecchini	0:9fca2b23d0ba	2446	}
marcozecchini	0:9fca2b23d0ba	2447	FatFs[vol] = fs; /* Register new fs object */
marcozecchini	0:9fca2b23d0ba	2448
marcozecchini	0:9fca2b23d0ba	2449	if (!fs \|\| opt != 1) return FR_OK; /* Do not mount now, it will be mounted later */
marcozecchini	0:9fca2b23d0ba	2450
marcozecchini	0:9fca2b23d0ba	2451	res = find_volume(&fs, &path, 0); /* Force mounted the volume */
marcozecchini	0:9fca2b23d0ba	2452	LEAVE_FF(fs, res);
marcozecchini	0:9fca2b23d0ba	2453	}
marcozecchini	0:9fca2b23d0ba	2454
marcozecchini	0:9fca2b23d0ba	2455
marcozecchini	0:9fca2b23d0ba	2456
marcozecchini	0:9fca2b23d0ba	2457
marcozecchini	0:9fca2b23d0ba	2458	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2459	/* Open or Create a File */
marcozecchini	0:9fca2b23d0ba	2460	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2461
marcozecchini	0:9fca2b23d0ba	2462	FRESULT f_open (
marcozecchini	0:9fca2b23d0ba	2463	FIL* fp, /* Pointer to the blank file object */
marcozecchini	0:9fca2b23d0ba	2464	const TCHAR* path, /* Pointer to the file name */
marcozecchini	0:9fca2b23d0ba	2465	BYTE mode /* Access mode and file open mode flags */
marcozecchini	0:9fca2b23d0ba	2466	)
marcozecchini	0:9fca2b23d0ba	2467	{
marcozecchini	0:9fca2b23d0ba	2468	FRESULT res;
marcozecchini	0:9fca2b23d0ba	2469	FATFS_DIR dj;
marcozecchini	0:9fca2b23d0ba	2470	BYTE *dir;
marcozecchini	0:9fca2b23d0ba	2471	DEFINE_NAMEBUF;
marcozecchini	0:9fca2b23d0ba	2472	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	2473	DWORD dw, cl;
marcozecchini	0:9fca2b23d0ba	2474	#endif
marcozecchini	0:9fca2b23d0ba	2475
marcozecchini	0:9fca2b23d0ba	2476
marcozecchini	0:9fca2b23d0ba	2477	if (!fp) return FR_INVALID_OBJECT;
marcozecchini	0:9fca2b23d0ba	2478	fp->fs = 0; /* Clear file object */
marcozecchini	0:9fca2b23d0ba	2479
marcozecchini	0:9fca2b23d0ba	2480	/* Get logical drive number */
marcozecchini	0:9fca2b23d0ba	2481	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	2482	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
marcozecchini	0:9fca2b23d0ba	2483	res = find_volume(&dj.fs, &path, (BYTE)(mode & ~FA_READ));
marcozecchini	0:9fca2b23d0ba	2484	#else
marcozecchini	0:9fca2b23d0ba	2485	mode &= FA_READ;
marcozecchini	0:9fca2b23d0ba	2486	res = find_volume(&dj.fs, &path, 0);
marcozecchini	0:9fca2b23d0ba	2487	#endif
marcozecchini	0:9fca2b23d0ba	2488	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	2489	INIT_BUF(dj);
marcozecchini	0:9fca2b23d0ba	2490	res = follow_path(&dj, path); /* Follow the file path */
marcozecchini	0:9fca2b23d0ba	2491	dir = dj.dir;
marcozecchini	0:9fca2b23d0ba	2492	#if !_FS_READONLY /* R/W configuration */
marcozecchini	0:9fca2b23d0ba	2493	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	2494	if (!dir) /* Default directory itself */
marcozecchini	0:9fca2b23d0ba	2495	res = FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	2496	#if _FS_LOCK
marcozecchini	0:9fca2b23d0ba	2497	else
marcozecchini	0:9fca2b23d0ba	2498	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
marcozecchini	0:9fca2b23d0ba	2499	#endif
marcozecchini	0:9fca2b23d0ba	2500	}
marcozecchini	0:9fca2b23d0ba	2501	/* Create or Open a file */
marcozecchini	0:9fca2b23d0ba	2502	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
marcozecchini	0:9fca2b23d0ba	2503	if (res != FR_OK) { /* No file, create new */
marcozecchini	0:9fca2b23d0ba	2504	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
marcozecchini	0:9fca2b23d0ba	2505	#if _FS_LOCK
marcozecchini	0:9fca2b23d0ba	2506	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
marcozecchini	0:9fca2b23d0ba	2507	#else
marcozecchini	0:9fca2b23d0ba	2508	res = dir_register(&dj);
marcozecchini	0:9fca2b23d0ba	2509	#endif
marcozecchini	0:9fca2b23d0ba	2510	mode \|= FA_CREATE_ALWAYS; /* File is created */
marcozecchini	0:9fca2b23d0ba	2511	dir = dj.dir; /* New entry */
marcozecchini	0:9fca2b23d0ba	2512	}
marcozecchini	0:9fca2b23d0ba	2513	else { /* Any object is already existing */
marcozecchini	0:9fca2b23d0ba	2514	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or FATFS_DIR) */
marcozecchini	0:9fca2b23d0ba	2515	res = FR_DENIED;
marcozecchini	0:9fca2b23d0ba	2516	} else {
marcozecchini	0:9fca2b23d0ba	2517	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
marcozecchini	0:9fca2b23d0ba	2518	res = FR_EXIST;
marcozecchini	0:9fca2b23d0ba	2519	}
marcozecchini	0:9fca2b23d0ba	2520	}
marcozecchini	0:9fca2b23d0ba	2521	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
marcozecchini	0:9fca2b23d0ba	2522	dw = GET_FATTIME();
marcozecchini	0:9fca2b23d0ba	2523	ST_DWORD(dir + DIR_CrtTime, dw);/* Set created time */
marcozecchini	0:9fca2b23d0ba	2524	ST_DWORD(dir + DIR_WrtTime, dw);/* Set modified time */
marcozecchini	0:9fca2b23d0ba	2525	dir[DIR_Attr] = 0; /* Reset attribute */
marcozecchini	0:9fca2b23d0ba	2526	ST_DWORD(dir + DIR_FileSize, 0);/* Reset file size */
marcozecchini	0:9fca2b23d0ba	2527	cl = ld_clust(dj.fs, dir); /* Get cluster chain */
marcozecchini	0:9fca2b23d0ba	2528	st_clust(dir, 0); /* Reset cluster */
marcozecchini	0:9fca2b23d0ba	2529	dj.fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	2530	if (cl) { /* Remove the cluster chain if exist */
marcozecchini	0:9fca2b23d0ba	2531	dw = dj.fs->winsect;
marcozecchini	0:9fca2b23d0ba	2532	res = remove_chain(dj.fs, cl);
marcozecchini	0:9fca2b23d0ba	2533	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	2534	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
marcozecchini	0:9fca2b23d0ba	2535	res = move_window(dj.fs, dw);
marcozecchini	0:9fca2b23d0ba	2536	}
marcozecchini	0:9fca2b23d0ba	2537	}
marcozecchini	0:9fca2b23d0ba	2538	}
marcozecchini	0:9fca2b23d0ba	2539	}
marcozecchini	0:9fca2b23d0ba	2540	else { /* Open an existing file */
marcozecchini	0:9fca2b23d0ba	2541	if (res == FR_OK) { /* Following succeeded */
marcozecchini	0:9fca2b23d0ba	2542	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
marcozecchini	0:9fca2b23d0ba	2543	res = FR_NO_FILE;
marcozecchini	0:9fca2b23d0ba	2544	} else {
marcozecchini	0:9fca2b23d0ba	2545	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
marcozecchini	0:9fca2b23d0ba	2546	res = FR_DENIED;
marcozecchini	0:9fca2b23d0ba	2547	}
marcozecchini	0:9fca2b23d0ba	2548	}
marcozecchini	0:9fca2b23d0ba	2549	}
marcozecchini	0:9fca2b23d0ba	2550	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	2551	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
marcozecchini	0:9fca2b23d0ba	2552	mode \|= FA__WRITTEN;
marcozecchini	0:9fca2b23d0ba	2553	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
marcozecchini	0:9fca2b23d0ba	2554	fp->dir_ptr = dir;
marcozecchini	0:9fca2b23d0ba	2555	#if _FS_LOCK
marcozecchini	0:9fca2b23d0ba	2556	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
marcozecchini	0:9fca2b23d0ba	2557	if (!fp->lockid) res = FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	2558	#endif
marcozecchini	0:9fca2b23d0ba	2559	}
marcozecchini	0:9fca2b23d0ba	2560
marcozecchini	0:9fca2b23d0ba	2561	#else /* R/O configuration */
marcozecchini	0:9fca2b23d0ba	2562	if (res == FR_OK) { /* Follow succeeded */
marcozecchini	0:9fca2b23d0ba	2563	dir = dj.dir;
marcozecchini	0:9fca2b23d0ba	2564	if (!dir) { /* Current directory itself */
marcozecchini	0:9fca2b23d0ba	2565	res = FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	2566	} else {
marcozecchini	0:9fca2b23d0ba	2567	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
marcozecchini	0:9fca2b23d0ba	2568	res = FR_NO_FILE;
marcozecchini	0:9fca2b23d0ba	2569	}
marcozecchini	0:9fca2b23d0ba	2570	}
marcozecchini	0:9fca2b23d0ba	2571	#endif
marcozecchini	0:9fca2b23d0ba	2572	FREE_BUF();
marcozecchini	0:9fca2b23d0ba	2573
marcozecchini	0:9fca2b23d0ba	2574	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	2575	fp->flag = mode; /* File access mode */
marcozecchini	0:9fca2b23d0ba	2576	fp->err = 0; /* Clear error flag */
marcozecchini	0:9fca2b23d0ba	2577	fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
marcozecchini	0:9fca2b23d0ba	2578	fp->fsize = LD_DWORD(dir + DIR_FileSize); /* File size */
marcozecchini	0:9fca2b23d0ba	2579	fp->fptr = 0; /* File pointer */
marcozecchini	0:9fca2b23d0ba	2580	fp->dsect = 0;
marcozecchini	0:9fca2b23d0ba	2581	#if _USE_FASTSEEK
marcozecchini	0:9fca2b23d0ba	2582	fp->cltbl = 0; /* Normal seek mode */
marcozecchini	0:9fca2b23d0ba	2583	#endif
marcozecchini	0:9fca2b23d0ba	2584	fp->fs = dj.fs; /* Validate file object */
marcozecchini	0:9fca2b23d0ba	2585	fp->id = fp->fs->id;
marcozecchini	0:9fca2b23d0ba	2586	#if !_FS_TINY && _FS_HEAPBUF
marcozecchini	0:9fca2b23d0ba	2587	fp->buf = (BYTE)ff_memalloc(SS(dj.fs)); / Allocate buffer if necessary */
marcozecchini	0:9fca2b23d0ba	2588	if (!fp->buf)
marcozecchini	0:9fca2b23d0ba	2589	return FR_NOT_ENOUGH_CORE;
marcozecchini	0:9fca2b23d0ba	2590	#endif
marcozecchini	0:9fca2b23d0ba	2591	}
marcozecchini	0:9fca2b23d0ba	2592	}
marcozecchini	0:9fca2b23d0ba	2593
marcozecchini	0:9fca2b23d0ba	2594	LEAVE_FF(dj.fs, res);
marcozecchini	0:9fca2b23d0ba	2595	}
marcozecchini	0:9fca2b23d0ba	2596
marcozecchini	0:9fca2b23d0ba	2597
marcozecchini	0:9fca2b23d0ba	2598
marcozecchini	0:9fca2b23d0ba	2599
marcozecchini	0:9fca2b23d0ba	2600	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2601	/* Read File */
marcozecchini	0:9fca2b23d0ba	2602	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2603
marcozecchini	0:9fca2b23d0ba	2604	FRESULT f_read (
marcozecchini	0:9fca2b23d0ba	2605	FIL* fp, /* Pointer to the file object */
marcozecchini	0:9fca2b23d0ba	2606	void* buff, /* Pointer to data buffer */
marcozecchini	0:9fca2b23d0ba	2607	UINT btr, /* Number of bytes to read */
marcozecchini	0:9fca2b23d0ba	2608	UINT* br /* Pointer to number of bytes read */
marcozecchini	0:9fca2b23d0ba	2609	)
marcozecchini	0:9fca2b23d0ba	2610	{
marcozecchini	0:9fca2b23d0ba	2611	FRESULT res;
marcozecchini	0:9fca2b23d0ba	2612	DWORD clst, sect, remain;
marcozecchini	0:9fca2b23d0ba	2613	UINT rcnt, cc;
marcozecchini	0:9fca2b23d0ba	2614	BYTE csect, rbuff = (BYTE)buff;
marcozecchini	0:9fca2b23d0ba	2615
marcozecchini	0:9fca2b23d0ba	2616
marcozecchini	0:9fca2b23d0ba	2617	br = 0; / Clear read byte counter */
marcozecchini	0:9fca2b23d0ba	2618
marcozecchini	0:9fca2b23d0ba	2619	res = validate(fp); /* Check validity */
marcozecchini	0:9fca2b23d0ba	2620	if (res != FR_OK) LEAVE_FF(fp->fs, res);
marcozecchini	0:9fca2b23d0ba	2621	if (fp->err) /* Check error */
marcozecchini	0:9fca2b23d0ba	2622	LEAVE_FF(fp->fs, (FRESULT)fp->err);
marcozecchini	0:9fca2b23d0ba	2623	if (!(fp->flag & FA_READ)) /* Check access mode */
marcozecchini	0:9fca2b23d0ba	2624	LEAVE_FF(fp->fs, FR_DENIED);
marcozecchini	0:9fca2b23d0ba	2625	remain = fp->fsize - fp->fptr;
marcozecchini	0:9fca2b23d0ba	2626	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
marcozecchini	0:9fca2b23d0ba	2627
marcozecchini	0:9fca2b23d0ba	2628	for ( ; btr; /* Repeat until all data read */
marcozecchini	0:9fca2b23d0ba	2629	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
marcozecchini	0:9fca2b23d0ba	2630	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
marcozecchini	0:9fca2b23d0ba	2631	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
marcozecchini	0:9fca2b23d0ba	2632	if (!csect) { /* On the cluster boundary? */
marcozecchini	0:9fca2b23d0ba	2633	if (fp->fptr == 0) { /* On the top of the file? */
marcozecchini	0:9fca2b23d0ba	2634	clst = fp->sclust; /* Follow from the origin */
marcozecchini	0:9fca2b23d0ba	2635	} else { /* Middle or end of the file */
marcozecchini	0:9fca2b23d0ba	2636	#if _USE_FASTSEEK
marcozecchini	0:9fca2b23d0ba	2637	if (fp->cltbl)
marcozecchini	0:9fca2b23d0ba	2638	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
marcozecchini	0:9fca2b23d0ba	2639	else
marcozecchini	0:9fca2b23d0ba	2640	#endif
marcozecchini	0:9fca2b23d0ba	2641	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
marcozecchini	0:9fca2b23d0ba	2642	}
marcozecchini	0:9fca2b23d0ba	2643	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
marcozecchini	0:9fca2b23d0ba	2644	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	2645	fp->clust = clst; /* Update current cluster */
marcozecchini	0:9fca2b23d0ba	2646	}
marcozecchini	0:9fca2b23d0ba	2647	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
marcozecchini	0:9fca2b23d0ba	2648	if (!sect) ABORT(fp->fs, FR_INT_ERR);
marcozecchini	0:9fca2b23d0ba	2649	sect += csect;
marcozecchini	0:9fca2b23d0ba	2650	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
marcozecchini	0:9fca2b23d0ba	2651	if (cc) { /* Read maximum contiguous sectors directly */
marcozecchini	0:9fca2b23d0ba	2652	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
marcozecchini	0:9fca2b23d0ba	2653	cc = fp->fs->csize - csect;
marcozecchini	0:9fca2b23d0ba	2654	if (disk_read(fp->fs->drv, rbuff, sect, cc) != RES_OK)
marcozecchini	0:9fca2b23d0ba	2655	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	2656	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
marcozecchini	0:9fca2b23d0ba	2657	#if _FS_TINY
marcozecchini	0:9fca2b23d0ba	2658	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
marcozecchini	0:9fca2b23d0ba	2659	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
marcozecchini	0:9fca2b23d0ba	2660	#else
marcozecchini	0:9fca2b23d0ba	2661	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
marcozecchini	0:9fca2b23d0ba	2662	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
marcozecchini	0:9fca2b23d0ba	2663	#endif
marcozecchini	0:9fca2b23d0ba	2664	#endif
marcozecchini	0:9fca2b23d0ba	2665	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
marcozecchini	0:9fca2b23d0ba	2666	continue;
marcozecchini	0:9fca2b23d0ba	2667	}
marcozecchini	0:9fca2b23d0ba	2668	#if !_FS_TINY
marcozecchini	0:9fca2b23d0ba	2669	if (fp->dsect != sect) { /* Load data sector if not in cache */
marcozecchini	0:9fca2b23d0ba	2670	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	2671	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
marcozecchini	0:9fca2b23d0ba	2672	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
marcozecchini	0:9fca2b23d0ba	2673	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	2674	fp->flag &= ~FA__DIRTY;
marcozecchini	0:9fca2b23d0ba	2675	}
marcozecchini	0:9fca2b23d0ba	2676	#endif
marcozecchini	0:9fca2b23d0ba	2677	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
marcozecchini	0:9fca2b23d0ba	2678	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	2679	}
marcozecchini	0:9fca2b23d0ba	2680	#endif
marcozecchini	0:9fca2b23d0ba	2681	fp->dsect = sect;
marcozecchini	0:9fca2b23d0ba	2682	}
marcozecchini	0:9fca2b23d0ba	2683	rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
marcozecchini	0:9fca2b23d0ba	2684	if (rcnt > btr) rcnt = btr;
marcozecchini	0:9fca2b23d0ba	2685	#if _FS_TINY
marcozecchini	0:9fca2b23d0ba	2686	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
marcozecchini	0:9fca2b23d0ba	2687	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	2688	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
marcozecchini	0:9fca2b23d0ba	2689	#else
marcozecchini	0:9fca2b23d0ba	2690	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
marcozecchini	0:9fca2b23d0ba	2691	#endif
marcozecchini	0:9fca2b23d0ba	2692	}
marcozecchini	0:9fca2b23d0ba	2693
marcozecchini	0:9fca2b23d0ba	2694	LEAVE_FF(fp->fs, FR_OK);
marcozecchini	0:9fca2b23d0ba	2695	}
marcozecchini	0:9fca2b23d0ba	2696
marcozecchini	0:9fca2b23d0ba	2697
marcozecchini	0:9fca2b23d0ba	2698
marcozecchini	0:9fca2b23d0ba	2699
marcozecchini	0:9fca2b23d0ba	2700	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	2701	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2702	/* Write File */
marcozecchini	0:9fca2b23d0ba	2703	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2704
marcozecchini	0:9fca2b23d0ba	2705	FRESULT f_write (
marcozecchini	0:9fca2b23d0ba	2706	FIL* fp, /* Pointer to the file object */
marcozecchini	0:9fca2b23d0ba	2707	const void buff, / Pointer to the data to be written */
marcozecchini	0:9fca2b23d0ba	2708	UINT btw, /* Number of bytes to write */
marcozecchini	0:9fca2b23d0ba	2709	UINT* bw /* Pointer to number of bytes written */
marcozecchini	0:9fca2b23d0ba	2710	)
marcozecchini	0:9fca2b23d0ba	2711	{
marcozecchini	0:9fca2b23d0ba	2712	FRESULT res;
marcozecchini	0:9fca2b23d0ba	2713	DWORD clst, sect;
marcozecchini	0:9fca2b23d0ba	2714	UINT wcnt, cc;
marcozecchini	0:9fca2b23d0ba	2715	const BYTE wbuff = (const BYTE)buff;
marcozecchini	0:9fca2b23d0ba	2716	BYTE csect;
marcozecchini	0:9fca2b23d0ba	2717	bool need_sync = false;
marcozecchini	0:9fca2b23d0ba	2718
marcozecchini	0:9fca2b23d0ba	2719	bw = 0; / Clear write byte counter */
marcozecchini	0:9fca2b23d0ba	2720
marcozecchini	0:9fca2b23d0ba	2721	res = validate(fp); /* Check validity */
marcozecchini	0:9fca2b23d0ba	2722	if (res != FR_OK) LEAVE_FF(fp->fs, res);
marcozecchini	0:9fca2b23d0ba	2723	if (fp->err) /* Check error */
marcozecchini	0:9fca2b23d0ba	2724	LEAVE_FF(fp->fs, (FRESULT)fp->err);
marcozecchini	0:9fca2b23d0ba	2725	if (!(fp->flag & FA_WRITE)) /* Check access mode */
marcozecchini	0:9fca2b23d0ba	2726	LEAVE_FF(fp->fs, FR_DENIED);
marcozecchini	0:9fca2b23d0ba	2727	if (fp->fptr + btw < fp->fptr) btw = 0; /* File size cannot reach 4GB */
marcozecchini	0:9fca2b23d0ba	2728
marcozecchini	0:9fca2b23d0ba	2729	for ( ; btw; /* Repeat until all data written */
marcozecchini	0:9fca2b23d0ba	2730	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
marcozecchini	0:9fca2b23d0ba	2731	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
marcozecchini	0:9fca2b23d0ba	2732	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
marcozecchini	0:9fca2b23d0ba	2733	if (!csect) { /* On the cluster boundary? */
marcozecchini	0:9fca2b23d0ba	2734	if (fp->fptr == 0) { /* On the top of the file? */
marcozecchini	0:9fca2b23d0ba	2735	clst = fp->sclust; /* Follow from the origin */
marcozecchini	0:9fca2b23d0ba	2736	if (clst == 0) /* When no cluster is allocated, */
marcozecchini	0:9fca2b23d0ba	2737	clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
marcozecchini	0:9fca2b23d0ba	2738	} else { /* Middle or end of the file */
marcozecchini	0:9fca2b23d0ba	2739	#if _USE_FASTSEEK
marcozecchini	0:9fca2b23d0ba	2740	if (fp->cltbl)
marcozecchini	0:9fca2b23d0ba	2741	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
marcozecchini	0:9fca2b23d0ba	2742	else
marcozecchini	0:9fca2b23d0ba	2743	#endif
marcozecchini	0:9fca2b23d0ba	2744	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
marcozecchini	0:9fca2b23d0ba	2745	}
marcozecchini	0:9fca2b23d0ba	2746	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
marcozecchini	0:9fca2b23d0ba	2747	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
marcozecchini	0:9fca2b23d0ba	2748	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	2749	fp->clust = clst; /* Update current cluster */
marcozecchini	0:9fca2b23d0ba	2750	if (fp->sclust == 0) fp->sclust = clst; /* Set start cluster if the first write */
marcozecchini	0:9fca2b23d0ba	2751
marcozecchini	0:9fca2b23d0ba	2752	#if FLUSH_ON_NEW_CLUSTER
marcozecchini	0:9fca2b23d0ba	2753	// We do not need to flush for the first cluster
marcozecchini	0:9fca2b23d0ba	2754	if (fp->fptr != 0) {
marcozecchini	0:9fca2b23d0ba	2755	need_sync = true;
marcozecchini	0:9fca2b23d0ba	2756	}
marcozecchini	0:9fca2b23d0ba	2757	#endif
marcozecchini	0:9fca2b23d0ba	2758	}
marcozecchini	0:9fca2b23d0ba	2759	#if _FS_TINY
marcozecchini	0:9fca2b23d0ba	2760	if (fp->fs->winsect == fp->dsect && sync_window(fp->fs)) /* Write-back sector cache */
marcozecchini	0:9fca2b23d0ba	2761	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	2762	#else
marcozecchini	0:9fca2b23d0ba	2763	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
marcozecchini	0:9fca2b23d0ba	2764	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
marcozecchini	0:9fca2b23d0ba	2765	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	2766	fp->flag &= ~FA__DIRTY;
marcozecchini	0:9fca2b23d0ba	2767	}
marcozecchini	0:9fca2b23d0ba	2768	#endif
marcozecchini	0:9fca2b23d0ba	2769	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
marcozecchini	0:9fca2b23d0ba	2770	if (!sect) ABORT(fp->fs, FR_INT_ERR);
marcozecchini	0:9fca2b23d0ba	2771	sect += csect;
marcozecchini	0:9fca2b23d0ba	2772	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
marcozecchini	0:9fca2b23d0ba	2773	if (cc) { /* Write maximum contiguous sectors directly */
marcozecchini	0:9fca2b23d0ba	2774	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
marcozecchini	0:9fca2b23d0ba	2775	cc = fp->fs->csize - csect;
marcozecchini	0:9fca2b23d0ba	2776	if (disk_write(fp->fs->drv, wbuff, sect, cc) != RES_OK)
marcozecchini	0:9fca2b23d0ba	2777	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	2778	#if _FS_MINIMIZE <= 2
marcozecchini	0:9fca2b23d0ba	2779	#if _FS_TINY
marcozecchini	0:9fca2b23d0ba	2780	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
marcozecchini	0:9fca2b23d0ba	2781	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
marcozecchini	0:9fca2b23d0ba	2782	fp->fs->wflag = 0;
marcozecchini	0:9fca2b23d0ba	2783	}
marcozecchini	0:9fca2b23d0ba	2784	#else
marcozecchini	0:9fca2b23d0ba	2785	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
marcozecchini	0:9fca2b23d0ba	2786	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
marcozecchini	0:9fca2b23d0ba	2787	fp->flag &= ~FA__DIRTY;
marcozecchini	0:9fca2b23d0ba	2788	}
marcozecchini	0:9fca2b23d0ba	2789	#endif
marcozecchini	0:9fca2b23d0ba	2790	#endif
marcozecchini	0:9fca2b23d0ba	2791	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
marcozecchini	0:9fca2b23d0ba	2792	#if FLUSH_ON_NEW_SECTOR
marcozecchini	0:9fca2b23d0ba	2793	need_sync = true;
marcozecchini	0:9fca2b23d0ba	2794	#endif
marcozecchini	0:9fca2b23d0ba	2795	continue;
marcozecchini	0:9fca2b23d0ba	2796	}
marcozecchini	0:9fca2b23d0ba	2797	#if _FS_TINY
marcozecchini	0:9fca2b23d0ba	2798	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
marcozecchini	0:9fca2b23d0ba	2799	if (sync_window(fp->fs)) ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	2800	fp->fs->winsect = sect;
marcozecchini	0:9fca2b23d0ba	2801	}
marcozecchini	0:9fca2b23d0ba	2802	#else
marcozecchini	0:9fca2b23d0ba	2803	if (fp->dsect != sect) { /* Fill sector cache with file data */
marcozecchini	0:9fca2b23d0ba	2804	if (fp->fptr < fp->fsize &&
marcozecchini	0:9fca2b23d0ba	2805	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
marcozecchini	0:9fca2b23d0ba	2806	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	2807	}
marcozecchini	0:9fca2b23d0ba	2808	#endif
marcozecchini	0:9fca2b23d0ba	2809	fp->dsect = sect;
marcozecchini	0:9fca2b23d0ba	2810	}
marcozecchini	0:9fca2b23d0ba	2811	wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
marcozecchini	0:9fca2b23d0ba	2812	if (wcnt > btw) wcnt = btw;
marcozecchini	0:9fca2b23d0ba	2813	#if _FS_TINY
marcozecchini	0:9fca2b23d0ba	2814	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
marcozecchini	0:9fca2b23d0ba	2815	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	2816	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
marcozecchini	0:9fca2b23d0ba	2817	fp->fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	2818	#else
marcozecchini	0:9fca2b23d0ba	2819	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
marcozecchini	0:9fca2b23d0ba	2820	fp->flag \|= FA__DIRTY;
marcozecchini	0:9fca2b23d0ba	2821	#endif
marcozecchini	0:9fca2b23d0ba	2822	}
marcozecchini	0:9fca2b23d0ba	2823
marcozecchini	0:9fca2b23d0ba	2824	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
marcozecchini	0:9fca2b23d0ba	2825	fp->flag \|= FA__WRITTEN; /* Set file change flag */
marcozecchini	0:9fca2b23d0ba	2826
marcozecchini	0:9fca2b23d0ba	2827	if (need_sync) {
marcozecchini	0:9fca2b23d0ba	2828	f_sync (fp);
marcozecchini	0:9fca2b23d0ba	2829	}
marcozecchini	0:9fca2b23d0ba	2830
marcozecchini	0:9fca2b23d0ba	2831	LEAVE_FF(fp->fs, FR_OK);
marcozecchini	0:9fca2b23d0ba	2832	}
marcozecchini	0:9fca2b23d0ba	2833
marcozecchini	0:9fca2b23d0ba	2834
marcozecchini	0:9fca2b23d0ba	2835
marcozecchini	0:9fca2b23d0ba	2836
marcozecchini	0:9fca2b23d0ba	2837	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2838	/* Synchronize the File */
marcozecchini	0:9fca2b23d0ba	2839	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2840
marcozecchini	0:9fca2b23d0ba	2841	FRESULT f_sync (
marcozecchini	0:9fca2b23d0ba	2842	FIL* fp /* Pointer to the file object */
marcozecchini	0:9fca2b23d0ba	2843	)
marcozecchini	0:9fca2b23d0ba	2844	{
marcozecchini	0:9fca2b23d0ba	2845	FRESULT res;
marcozecchini	0:9fca2b23d0ba	2846	DWORD tm;
marcozecchini	0:9fca2b23d0ba	2847	BYTE *dir;
marcozecchini	0:9fca2b23d0ba	2848
marcozecchini	0:9fca2b23d0ba	2849
marcozecchini	0:9fca2b23d0ba	2850	res = validate(fp); /* Check validity of the object */
marcozecchini	0:9fca2b23d0ba	2851	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	2852	if (fp->flag & FA__WRITTEN) { /* Is there any change to the file? */
marcozecchini	0:9fca2b23d0ba	2853	#if !_FS_TINY
marcozecchini	0:9fca2b23d0ba	2854	if (fp->flag & FA__DIRTY) { /* Write-back cached data if needed */
marcozecchini	0:9fca2b23d0ba	2855	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
marcozecchini	0:9fca2b23d0ba	2856	LEAVE_FF(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	2857	fp->flag &= ~FA__DIRTY;
marcozecchini	0:9fca2b23d0ba	2858	}
marcozecchini	0:9fca2b23d0ba	2859	#endif
marcozecchini	0:9fca2b23d0ba	2860	/* Update the directory entry */
marcozecchini	0:9fca2b23d0ba	2861	res = move_window(fp->fs, fp->dir_sect);
marcozecchini	0:9fca2b23d0ba	2862	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	2863	dir = fp->dir_ptr;
marcozecchini	0:9fca2b23d0ba	2864	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
marcozecchini	0:9fca2b23d0ba	2865	ST_DWORD(dir + DIR_FileSize, fp->fsize); /* Update file size */
marcozecchini	0:9fca2b23d0ba	2866	st_clust(dir, fp->sclust); /* Update start cluster */
marcozecchini	0:9fca2b23d0ba	2867	tm = GET_FATTIME(); /* Update modified time */
marcozecchini	0:9fca2b23d0ba	2868	ST_DWORD(dir + DIR_WrtTime, tm);
marcozecchini	0:9fca2b23d0ba	2869	ST_WORD(dir + DIR_LstAccDate, 0);
marcozecchini	0:9fca2b23d0ba	2870	fp->flag &= ~FA__WRITTEN;
marcozecchini	0:9fca2b23d0ba	2871	fp->fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	2872	res = sync_fs(fp->fs);
marcozecchini	0:9fca2b23d0ba	2873	}
marcozecchini	0:9fca2b23d0ba	2874	}
marcozecchini	0:9fca2b23d0ba	2875	}
marcozecchini	0:9fca2b23d0ba	2876
marcozecchini	0:9fca2b23d0ba	2877	LEAVE_FF(fp->fs, res);
marcozecchini	0:9fca2b23d0ba	2878	}
marcozecchini	0:9fca2b23d0ba	2879
marcozecchini	0:9fca2b23d0ba	2880	#endif /* !_FS_READONLY */
marcozecchini	0:9fca2b23d0ba	2881
marcozecchini	0:9fca2b23d0ba	2882
marcozecchini	0:9fca2b23d0ba	2883
marcozecchini	0:9fca2b23d0ba	2884
marcozecchini	0:9fca2b23d0ba	2885	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2886	/* Close File */
marcozecchini	0:9fca2b23d0ba	2887	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2888
marcozecchini	0:9fca2b23d0ba	2889	FRESULT f_close (
marcozecchini	0:9fca2b23d0ba	2890	FIL fp / Pointer to the file object to be closed */
marcozecchini	0:9fca2b23d0ba	2891	)
marcozecchini	0:9fca2b23d0ba	2892	{
marcozecchini	0:9fca2b23d0ba	2893	FRESULT res;
marcozecchini	0:9fca2b23d0ba	2894
marcozecchini	0:9fca2b23d0ba	2895
marcozecchini	0:9fca2b23d0ba	2896	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	2897	res = f_sync(fp); /* Flush cached data */
marcozecchini	0:9fca2b23d0ba	2898	if (res == FR_OK)
marcozecchini	0:9fca2b23d0ba	2899	#endif
marcozecchini	0:9fca2b23d0ba	2900	{
marcozecchini	0:9fca2b23d0ba	2901	res = validate(fp); /* Lock volume */
marcozecchini	0:9fca2b23d0ba	2902	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	2903	#if _FS_REENTRANT
marcozecchini	0:9fca2b23d0ba	2904	FATFS *fs = fp->fs;
marcozecchini	0:9fca2b23d0ba	2905	#endif
marcozecchini	0:9fca2b23d0ba	2906	#if _FS_LOCK
marcozecchini	0:9fca2b23d0ba	2907	res = dec_lock(fp->lockid); /* Decrement file open counter */
marcozecchini	0:9fca2b23d0ba	2908	if (res == FR_OK)
marcozecchini	0:9fca2b23d0ba	2909	#endif
marcozecchini	0:9fca2b23d0ba	2910	fp->fs = 0; /* Invalidate file object */
marcozecchini	0:9fca2b23d0ba	2911	#if _FS_REENTRANT
marcozecchini	0:9fca2b23d0ba	2912	unlock_fs(fs, FR_OK); /* Unlock volume */
marcozecchini	0:9fca2b23d0ba	2913	#endif
marcozecchini	0:9fca2b23d0ba	2914	#if !_FS_TINY && _FS_HEAPBUF
marcozecchini	0:9fca2b23d0ba	2915	ff_memfree(fp->buf); /* Deallocate buffer */
marcozecchini	0:9fca2b23d0ba	2916	#endif
marcozecchini	0:9fca2b23d0ba	2917	}
marcozecchini	0:9fca2b23d0ba	2918	}
marcozecchini	0:9fca2b23d0ba	2919	return res;
marcozecchini	0:9fca2b23d0ba	2920	}
marcozecchini	0:9fca2b23d0ba	2921
marcozecchini	0:9fca2b23d0ba	2922
marcozecchini	0:9fca2b23d0ba	2923
marcozecchini	0:9fca2b23d0ba	2924
marcozecchini	0:9fca2b23d0ba	2925	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2926	/* Change Current Directory or Current Drive, Get Current Directory */
marcozecchini	0:9fca2b23d0ba	2927	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	2928
marcozecchini	0:9fca2b23d0ba	2929	#if _FS_RPATH >= 1
marcozecchini	0:9fca2b23d0ba	2930	#if _VOLUMES >= 2
marcozecchini	0:9fca2b23d0ba	2931	FRESULT f_chdrive (
marcozecchini	0:9fca2b23d0ba	2932	const TCHAR* path /* Drive number */
marcozecchini	0:9fca2b23d0ba	2933	)
marcozecchini	0:9fca2b23d0ba	2934	{
marcozecchini	0:9fca2b23d0ba	2935	int vol;
marcozecchini	0:9fca2b23d0ba	2936
marcozecchini	0:9fca2b23d0ba	2937
marcozecchini	0:9fca2b23d0ba	2938	vol = get_ldnumber(&path);
marcozecchini	0:9fca2b23d0ba	2939	if (vol < 0) return FR_INVALID_DRIVE;
marcozecchini	0:9fca2b23d0ba	2940
marcozecchini	0:9fca2b23d0ba	2941	CurrVol = (BYTE)vol;
marcozecchini	0:9fca2b23d0ba	2942
marcozecchini	0:9fca2b23d0ba	2943	return FR_OK;
marcozecchini	0:9fca2b23d0ba	2944	}
marcozecchini	0:9fca2b23d0ba	2945	#endif
marcozecchini	0:9fca2b23d0ba	2946
marcozecchini	0:9fca2b23d0ba	2947
marcozecchini	0:9fca2b23d0ba	2948	FRESULT f_chdir (
marcozecchini	0:9fca2b23d0ba	2949	const TCHAR* path /* Pointer to the directory path */
marcozecchini	0:9fca2b23d0ba	2950	)
marcozecchini	0:9fca2b23d0ba	2951	{
marcozecchini	0:9fca2b23d0ba	2952	FRESULT res;
marcozecchini	0:9fca2b23d0ba	2953	FATFS_DIR dj;
marcozecchini	0:9fca2b23d0ba	2954	DEFINE_NAMEBUF;
marcozecchini	0:9fca2b23d0ba	2955
marcozecchini	0:9fca2b23d0ba	2956
marcozecchini	0:9fca2b23d0ba	2957	/* Get logical drive number */
marcozecchini	0:9fca2b23d0ba	2958	res = find_volume(&dj.fs, &path, 0);
marcozecchini	0:9fca2b23d0ba	2959	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	2960	INIT_BUF(dj);
marcozecchini	0:9fca2b23d0ba	2961	res = follow_path(&dj, path); /* Follow the path */
marcozecchini	0:9fca2b23d0ba	2962	FREE_BUF();
marcozecchini	0:9fca2b23d0ba	2963	if (res == FR_OK) { /* Follow completed */
marcozecchini	0:9fca2b23d0ba	2964	if (!dj.dir) {
marcozecchini	0:9fca2b23d0ba	2965	dj.fs->cdir = dj.sclust; /* Start directory itself */
marcozecchini	0:9fca2b23d0ba	2966	} else {
marcozecchini	0:9fca2b23d0ba	2967	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
marcozecchini	0:9fca2b23d0ba	2968	dj.fs->cdir = ld_clust(dj.fs, dj.dir);
marcozecchini	0:9fca2b23d0ba	2969	else
marcozecchini	0:9fca2b23d0ba	2970	res = FR_NO_PATH; /* Reached but a file */
marcozecchini	0:9fca2b23d0ba	2971	}
marcozecchini	0:9fca2b23d0ba	2972	}
marcozecchini	0:9fca2b23d0ba	2973	if (res == FR_NO_FILE) res = FR_NO_PATH;
marcozecchini	0:9fca2b23d0ba	2974	}
marcozecchini	0:9fca2b23d0ba	2975
marcozecchini	0:9fca2b23d0ba	2976	LEAVE_FF(dj.fs, res);
marcozecchini	0:9fca2b23d0ba	2977	}
marcozecchini	0:9fca2b23d0ba	2978
marcozecchini	0:9fca2b23d0ba	2979
marcozecchini	0:9fca2b23d0ba	2980	#if _FS_RPATH >= 2
marcozecchini	0:9fca2b23d0ba	2981	FRESULT f_getcwd (
marcozecchini	0:9fca2b23d0ba	2982	TCHAR* buff, /* Pointer to the directory path */
marcozecchini	0:9fca2b23d0ba	2983	UINT len /* Size of path */
marcozecchini	0:9fca2b23d0ba	2984	)
marcozecchini	0:9fca2b23d0ba	2985	{
marcozecchini	0:9fca2b23d0ba	2986	FRESULT res;
marcozecchini	0:9fca2b23d0ba	2987	FATFS_DIR dj;
marcozecchini	0:9fca2b23d0ba	2988	UINT i, n;
marcozecchini	0:9fca2b23d0ba	2989	DWORD ccl;
marcozecchini	0:9fca2b23d0ba	2990	TCHAR *tp;
marcozecchini	0:9fca2b23d0ba	2991	FILINFO fno;
marcozecchini	0:9fca2b23d0ba	2992	DEFINE_NAMEBUF;
marcozecchini	0:9fca2b23d0ba	2993
marcozecchini	0:9fca2b23d0ba	2994
marcozecchini	0:9fca2b23d0ba	2995	*buff = 0;
marcozecchini	0:9fca2b23d0ba	2996	/* Get logical drive number */
marcozecchini	0:9fca2b23d0ba	2997	res = find_volume(&dj.fs, (const TCHAR*)&buff, 0); / Get current volume */
marcozecchini	0:9fca2b23d0ba	2998	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	2999	INIT_BUF(dj);
marcozecchini	0:9fca2b23d0ba	3000	i = len; /* Bottom of buffer (directory stack base) */
marcozecchini	0:9fca2b23d0ba	3001	dj.sclust = dj.fs->cdir; /* Start to follow upper directory from current directory */
marcozecchini	0:9fca2b23d0ba	3002	while ((ccl = dj.sclust) != 0) { /* Repeat while current directory is a sub-directory */
marcozecchini	0:9fca2b23d0ba	3003	res = dir_sdi(&dj, 1); /* Get parent directory */
marcozecchini	0:9fca2b23d0ba	3004	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	3005	res = dir_read(&dj, 0);
marcozecchini	0:9fca2b23d0ba	3006	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	3007	dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent directory */
marcozecchini	0:9fca2b23d0ba	3008	res = dir_sdi(&dj, 0);
marcozecchini	0:9fca2b23d0ba	3009	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	3010	do { /* Find the entry links to the child directory */
marcozecchini	0:9fca2b23d0ba	3011	res = dir_read(&dj, 0);
marcozecchini	0:9fca2b23d0ba	3012	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	3013	if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
marcozecchini	0:9fca2b23d0ba	3014	res = dir_next(&dj, 0);
marcozecchini	0:9fca2b23d0ba	3015	} while (res == FR_OK);
marcozecchini	0:9fca2b23d0ba	3016	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
marcozecchini	0:9fca2b23d0ba	3017	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	3018	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	3019	fno.lfname = buff;
marcozecchini	0:9fca2b23d0ba	3020	fno.lfsize = i;
marcozecchini	0:9fca2b23d0ba	3021	#endif
marcozecchini	0:9fca2b23d0ba	3022	get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */
marcozecchini	0:9fca2b23d0ba	3023	tp = fno.fname;
marcozecchini	0:9fca2b23d0ba	3024	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	3025	if (*buff) tp = buff;
marcozecchini	0:9fca2b23d0ba	3026	#endif
marcozecchini	0:9fca2b23d0ba	3027	for (n = 0; tp[n]; n++) ;
marcozecchini	0:9fca2b23d0ba	3028	if (i < n + 3) {
marcozecchini	0:9fca2b23d0ba	3029	res = FR_NOT_ENOUGH_CORE; break;
marcozecchini	0:9fca2b23d0ba	3030	}
marcozecchini	0:9fca2b23d0ba	3031	while (n) buff[--i] = tp[--n];
marcozecchini	0:9fca2b23d0ba	3032	buff[--i] = '/';
marcozecchini	0:9fca2b23d0ba	3033	}
marcozecchini	0:9fca2b23d0ba	3034	tp = buff;
marcozecchini	0:9fca2b23d0ba	3035	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3036	#if _VOLUMES >= 2
marcozecchini	0:9fca2b23d0ba	3037	tp++ = '0' + CurrVol; / Put drive number */
marcozecchini	0:9fca2b23d0ba	3038	*tp++ = ':';
marcozecchini	0:9fca2b23d0ba	3039	#endif
marcozecchini	0:9fca2b23d0ba	3040	if (i == len) { /* Root-directory */
marcozecchini	0:9fca2b23d0ba	3041	*tp++ = '/';
marcozecchini	0:9fca2b23d0ba	3042	} else { /* Sub-directroy */
marcozecchini	0:9fca2b23d0ba	3043	do /* Add stacked path str */
marcozecchini	0:9fca2b23d0ba	3044	*tp++ = buff[i++];
marcozecchini	0:9fca2b23d0ba	3045	while (i < len);
marcozecchini	0:9fca2b23d0ba	3046	}
marcozecchini	0:9fca2b23d0ba	3047	}
marcozecchini	0:9fca2b23d0ba	3048	*tp = 0;
marcozecchini	0:9fca2b23d0ba	3049	FREE_BUF();
marcozecchini	0:9fca2b23d0ba	3050	}
marcozecchini	0:9fca2b23d0ba	3051
marcozecchini	0:9fca2b23d0ba	3052	LEAVE_FF(dj.fs, res);
marcozecchini	0:9fca2b23d0ba	3053	}
marcozecchini	0:9fca2b23d0ba	3054	#endif /* _FS_RPATH >= 2 */
marcozecchini	0:9fca2b23d0ba	3055	#endif /* _FS_RPATH >= 1 */
marcozecchini	0:9fca2b23d0ba	3056
marcozecchini	0:9fca2b23d0ba	3057
marcozecchini	0:9fca2b23d0ba	3058
marcozecchini	0:9fca2b23d0ba	3059	#if _FS_MINIMIZE <= 2
marcozecchini	0:9fca2b23d0ba	3060	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3061	/* Seek File R/W Pointer */
marcozecchini	0:9fca2b23d0ba	3062	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3063
marcozecchini	0:9fca2b23d0ba	3064	FRESULT f_lseek (
marcozecchini	0:9fca2b23d0ba	3065	FIL* fp, /* Pointer to the file object */
marcozecchini	0:9fca2b23d0ba	3066	DWORD ofs /* File pointer from top of file */
marcozecchini	0:9fca2b23d0ba	3067	)
marcozecchini	0:9fca2b23d0ba	3068	{
marcozecchini	0:9fca2b23d0ba	3069	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3070	DWORD clst, bcs, nsect, ifptr;
marcozecchini	0:9fca2b23d0ba	3071	#if _USE_FASTSEEK
marcozecchini	0:9fca2b23d0ba	3072	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
marcozecchini	0:9fca2b23d0ba	3073	#endif
marcozecchini	0:9fca2b23d0ba	3074
marcozecchini	0:9fca2b23d0ba	3075
marcozecchini	0:9fca2b23d0ba	3076	res = validate(fp); /* Check validity of the object */
marcozecchini	0:9fca2b23d0ba	3077	if (res != FR_OK) LEAVE_FF(fp->fs, res);
marcozecchini	0:9fca2b23d0ba	3078	if (fp->err) /* Check error */
marcozecchini	0:9fca2b23d0ba	3079	LEAVE_FF(fp->fs, (FRESULT)fp->err);
marcozecchini	0:9fca2b23d0ba	3080
marcozecchini	0:9fca2b23d0ba	3081	#if _USE_FASTSEEK
marcozecchini	0:9fca2b23d0ba	3082	if (fp->cltbl) { /* Fast seek */
marcozecchini	0:9fca2b23d0ba	3083	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
marcozecchini	0:9fca2b23d0ba	3084	tbl = fp->cltbl;
marcozecchini	0:9fca2b23d0ba	3085	tlen = tbl++; ulen = 2; / Given table size and required table size */
marcozecchini	0:9fca2b23d0ba	3086	cl = fp->sclust; /* Top of the chain */
marcozecchini	0:9fca2b23d0ba	3087	if (cl) {
marcozecchini	0:9fca2b23d0ba	3088	do {
marcozecchini	0:9fca2b23d0ba	3089	/* Get a fragment */
marcozecchini	0:9fca2b23d0ba	3090	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
marcozecchini	0:9fca2b23d0ba	3091	do {
marcozecchini	0:9fca2b23d0ba	3092	pcl = cl; ncl++;
marcozecchini	0:9fca2b23d0ba	3093	cl = get_fat(fp->fs, cl);
marcozecchini	0:9fca2b23d0ba	3094	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
marcozecchini	0:9fca2b23d0ba	3095	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	3096	} while (cl == pcl + 1);
marcozecchini	0:9fca2b23d0ba	3097	if (ulen <= tlen) { /* Store the length and top of the fragment */
marcozecchini	0:9fca2b23d0ba	3098	tbl++ = ncl; tbl++ = tcl;
marcozecchini	0:9fca2b23d0ba	3099	}
marcozecchini	0:9fca2b23d0ba	3100	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
marcozecchini	0:9fca2b23d0ba	3101	}
marcozecchini	0:9fca2b23d0ba	3102	fp->cltbl = ulen; / Number of items used */
marcozecchini	0:9fca2b23d0ba	3103	if (ulen <= tlen)
marcozecchini	0:9fca2b23d0ba	3104	tbl = 0; / Terminate table */
marcozecchini	0:9fca2b23d0ba	3105	else
marcozecchini	0:9fca2b23d0ba	3106	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
marcozecchini	0:9fca2b23d0ba	3107
marcozecchini	0:9fca2b23d0ba	3108	} else { /* Fast seek */
marcozecchini	0:9fca2b23d0ba	3109	if (ofs > fp->fsize) /* Clip offset at the file size */
marcozecchini	0:9fca2b23d0ba	3110	ofs = fp->fsize;
marcozecchini	0:9fca2b23d0ba	3111	fp->fptr = ofs; /* Set file pointer */
marcozecchini	0:9fca2b23d0ba	3112	if (ofs) {
marcozecchini	0:9fca2b23d0ba	3113	fp->clust = clmt_clust(fp, ofs - 1);
marcozecchini	0:9fca2b23d0ba	3114	dsc = clust2sect(fp->fs, fp->clust);
marcozecchini	0:9fca2b23d0ba	3115	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
marcozecchini	0:9fca2b23d0ba	3116	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
marcozecchini	0:9fca2b23d0ba	3117	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
marcozecchini	0:9fca2b23d0ba	3118	#if !_FS_TINY
marcozecchini	0:9fca2b23d0ba	3119	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	3120	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
marcozecchini	0:9fca2b23d0ba	3121	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
marcozecchini	0:9fca2b23d0ba	3122	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	3123	fp->flag &= ~FA__DIRTY;
marcozecchini	0:9fca2b23d0ba	3124	}
marcozecchini	0:9fca2b23d0ba	3125	#endif
marcozecchini	0:9fca2b23d0ba	3126	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
marcozecchini	0:9fca2b23d0ba	3127	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	3128	#endif
marcozecchini	0:9fca2b23d0ba	3129	fp->dsect = dsc;
marcozecchini	0:9fca2b23d0ba	3130	}
marcozecchini	0:9fca2b23d0ba	3131	}
marcozecchini	0:9fca2b23d0ba	3132	}
marcozecchini	0:9fca2b23d0ba	3133	} else
marcozecchini	0:9fca2b23d0ba	3134	#endif
marcozecchini	0:9fca2b23d0ba	3135
marcozecchini	0:9fca2b23d0ba	3136	/* Normal Seek */
marcozecchini	0:9fca2b23d0ba	3137	{
marcozecchini	0:9fca2b23d0ba	3138	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
marcozecchini	0:9fca2b23d0ba	3139	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	3140	&& !(fp->flag & FA_WRITE)
marcozecchini	0:9fca2b23d0ba	3141	#endif
marcozecchini	0:9fca2b23d0ba	3142	) ofs = fp->fsize;
marcozecchini	0:9fca2b23d0ba	3143
marcozecchini	0:9fca2b23d0ba	3144	ifptr = fp->fptr;
marcozecchini	0:9fca2b23d0ba	3145	fp->fptr = nsect = 0;
marcozecchini	0:9fca2b23d0ba	3146	if (ofs) {
marcozecchini	0:9fca2b23d0ba	3147	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
marcozecchini	0:9fca2b23d0ba	3148	if (ifptr > 0 &&
marcozecchini	0:9fca2b23d0ba	3149	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
marcozecchini	0:9fca2b23d0ba	3150	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
marcozecchini	0:9fca2b23d0ba	3151	ofs -= fp->fptr;
marcozecchini	0:9fca2b23d0ba	3152	clst = fp->clust;
marcozecchini	0:9fca2b23d0ba	3153	} else { /* When seek to back cluster, */
marcozecchini	0:9fca2b23d0ba	3154	clst = fp->sclust; /* start from the first cluster */
marcozecchini	0:9fca2b23d0ba	3155	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	3156	if (clst == 0) { /* If no cluster chain, create a new chain */
marcozecchini	0:9fca2b23d0ba	3157	clst = create_chain(fp->fs, 0);
marcozecchini	0:9fca2b23d0ba	3158	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
marcozecchini	0:9fca2b23d0ba	3159	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	3160	fp->sclust = clst;
marcozecchini	0:9fca2b23d0ba	3161	}
marcozecchini	0:9fca2b23d0ba	3162	#endif
marcozecchini	0:9fca2b23d0ba	3163	fp->clust = clst;
marcozecchini	0:9fca2b23d0ba	3164	}
marcozecchini	0:9fca2b23d0ba	3165	if (clst != 0) {
marcozecchini	0:9fca2b23d0ba	3166	while (ofs > bcs) { /* Cluster following loop */
marcozecchini	0:9fca2b23d0ba	3167	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	3168	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
marcozecchini	0:9fca2b23d0ba	3169	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
marcozecchini	0:9fca2b23d0ba	3170	if (clst == 0) { /* When disk gets full, clip file size */
marcozecchini	0:9fca2b23d0ba	3171	ofs = bcs; break;
marcozecchini	0:9fca2b23d0ba	3172	}
marcozecchini	0:9fca2b23d0ba	3173	} else
marcozecchini	0:9fca2b23d0ba	3174	#endif
marcozecchini	0:9fca2b23d0ba	3175	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
marcozecchini	0:9fca2b23d0ba	3176	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	3177	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
marcozecchini	0:9fca2b23d0ba	3178	fp->clust = clst;
marcozecchini	0:9fca2b23d0ba	3179	fp->fptr += bcs;
marcozecchini	0:9fca2b23d0ba	3180	ofs -= bcs;
marcozecchini	0:9fca2b23d0ba	3181	}
marcozecchini	0:9fca2b23d0ba	3182	fp->fptr += ofs;
marcozecchini	0:9fca2b23d0ba	3183	if (ofs % SS(fp->fs)) {
marcozecchini	0:9fca2b23d0ba	3184	nsect = clust2sect(fp->fs, clst); /* Current sector */
marcozecchini	0:9fca2b23d0ba	3185	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
marcozecchini	0:9fca2b23d0ba	3186	nsect += ofs / SS(fp->fs);
marcozecchini	0:9fca2b23d0ba	3187	}
marcozecchini	0:9fca2b23d0ba	3188	}
marcozecchini	0:9fca2b23d0ba	3189	}
marcozecchini	0:9fca2b23d0ba	3190	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
marcozecchini	0:9fca2b23d0ba	3191	#if !_FS_TINY
marcozecchini	0:9fca2b23d0ba	3192	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	3193	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
marcozecchini	0:9fca2b23d0ba	3194	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
marcozecchini	0:9fca2b23d0ba	3195	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	3196	fp->flag &= ~FA__DIRTY;
marcozecchini	0:9fca2b23d0ba	3197	}
marcozecchini	0:9fca2b23d0ba	3198	#endif
marcozecchini	0:9fca2b23d0ba	3199	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
marcozecchini	0:9fca2b23d0ba	3200	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	3201	#endif
marcozecchini	0:9fca2b23d0ba	3202	fp->dsect = nsect;
marcozecchini	0:9fca2b23d0ba	3203	}
marcozecchini	0:9fca2b23d0ba	3204	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	3205	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
marcozecchini	0:9fca2b23d0ba	3206	fp->fsize = fp->fptr;
marcozecchini	0:9fca2b23d0ba	3207	fp->flag \|= FA__WRITTEN;
marcozecchini	0:9fca2b23d0ba	3208	}
marcozecchini	0:9fca2b23d0ba	3209	#endif
marcozecchini	0:9fca2b23d0ba	3210	}
marcozecchini	0:9fca2b23d0ba	3211
marcozecchini	0:9fca2b23d0ba	3212	LEAVE_FF(fp->fs, res);
marcozecchini	0:9fca2b23d0ba	3213	}
marcozecchini	0:9fca2b23d0ba	3214
marcozecchini	0:9fca2b23d0ba	3215
marcozecchini	0:9fca2b23d0ba	3216
marcozecchini	0:9fca2b23d0ba	3217	#if _FS_MINIMIZE <= 1
marcozecchini	0:9fca2b23d0ba	3218	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3219	/* Create a Directory Object */
marcozecchini	0:9fca2b23d0ba	3220	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3221
marcozecchini	0:9fca2b23d0ba	3222	FRESULT f_opendir (
marcozecchini	0:9fca2b23d0ba	3223	FATFS_DIR* dp, /* Pointer to directory object to create */
marcozecchini	0:9fca2b23d0ba	3224	const TCHAR* path /* Pointer to the directory path */
marcozecchini	0:9fca2b23d0ba	3225	)
marcozecchini	0:9fca2b23d0ba	3226	{
marcozecchini	0:9fca2b23d0ba	3227	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3228	FATFS* fs;
marcozecchini	0:9fca2b23d0ba	3229	DEFINE_NAMEBUF;
marcozecchini	0:9fca2b23d0ba	3230
marcozecchini	0:9fca2b23d0ba	3231
marcozecchini	0:9fca2b23d0ba	3232	if (!dp) return FR_INVALID_OBJECT;
marcozecchini	0:9fca2b23d0ba	3233
marcozecchini	0:9fca2b23d0ba	3234	/* Get logical drive number */
marcozecchini	0:9fca2b23d0ba	3235	res = find_volume(&fs, &path, 0);
marcozecchini	0:9fca2b23d0ba	3236	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3237	dp->fs = fs;
marcozecchini	0:9fca2b23d0ba	3238	INIT_BUF(*dp);
marcozecchini	0:9fca2b23d0ba	3239	res = follow_path(dp, path); /* Follow the path to the directory */
marcozecchini	0:9fca2b23d0ba	3240	FREE_BUF();
marcozecchini	0:9fca2b23d0ba	3241	if (res == FR_OK) { /* Follow completed */
marcozecchini	0:9fca2b23d0ba	3242	if (dp->dir) { /* It is not the origin directory itself */
marcozecchini	0:9fca2b23d0ba	3243	if (dp->dir[DIR_Attr] & AM_DIR) /* The object is a sub directory */
marcozecchini	0:9fca2b23d0ba	3244	dp->sclust = ld_clust(fs, dp->dir);
marcozecchini	0:9fca2b23d0ba	3245	else /* The object is a file */
marcozecchini	0:9fca2b23d0ba	3246	res = FR_NO_PATH;
marcozecchini	0:9fca2b23d0ba	3247	}
marcozecchini	0:9fca2b23d0ba	3248	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3249	dp->id = fs->id;
marcozecchini	0:9fca2b23d0ba	3250	res = dir_sdi(dp, 0); /* Rewind directory */
marcozecchini	0:9fca2b23d0ba	3251	#if _FS_LOCK
marcozecchini	0:9fca2b23d0ba	3252	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3253	if (dp->sclust) {
marcozecchini	0:9fca2b23d0ba	3254	dp->lockid = inc_lock(dp, 0); /* Lock the sub directory */
marcozecchini	0:9fca2b23d0ba	3255	if (!dp->lockid)
marcozecchini	0:9fca2b23d0ba	3256	res = FR_TOO_MANY_OPEN_FILES;
marcozecchini	0:9fca2b23d0ba	3257	} else {
marcozecchini	0:9fca2b23d0ba	3258	dp->lockid = 0; /* Root directory need not to be locked */
marcozecchini	0:9fca2b23d0ba	3259	}
marcozecchini	0:9fca2b23d0ba	3260	}
marcozecchini	0:9fca2b23d0ba	3261	#endif
marcozecchini	0:9fca2b23d0ba	3262	}
marcozecchini	0:9fca2b23d0ba	3263	}
marcozecchini	0:9fca2b23d0ba	3264	if (res == FR_NO_FILE) res = FR_NO_PATH;
marcozecchini	0:9fca2b23d0ba	3265	}
marcozecchini	0:9fca2b23d0ba	3266	if (res != FR_OK) dp->fs = 0; /* Invalidate the directory object if function faild */
marcozecchini	0:9fca2b23d0ba	3267
marcozecchini	0:9fca2b23d0ba	3268	LEAVE_FF(fs, res);
marcozecchini	0:9fca2b23d0ba	3269	}
marcozecchini	0:9fca2b23d0ba	3270
marcozecchini	0:9fca2b23d0ba	3271
marcozecchini	0:9fca2b23d0ba	3272
marcozecchini	0:9fca2b23d0ba	3273
marcozecchini	0:9fca2b23d0ba	3274	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3275	/* Close Directory */
marcozecchini	0:9fca2b23d0ba	3276	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3277
marcozecchini	0:9fca2b23d0ba	3278	FRESULT f_closedir (
marcozecchini	0:9fca2b23d0ba	3279	FATFS_DIR dp / Pointer to the directory object to be closed */
marcozecchini	0:9fca2b23d0ba	3280	)
marcozecchini	0:9fca2b23d0ba	3281	{
marcozecchini	0:9fca2b23d0ba	3282	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3283
marcozecchini	0:9fca2b23d0ba	3284
marcozecchini	0:9fca2b23d0ba	3285	res = validate(dp);
marcozecchini	0:9fca2b23d0ba	3286	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3287	#if _FS_REENTRANT
marcozecchini	0:9fca2b23d0ba	3288	FATFS *fs = dp->fs;
marcozecchini	0:9fca2b23d0ba	3289	#endif
marcozecchini	0:9fca2b23d0ba	3290	#if _FS_LOCK
marcozecchini	0:9fca2b23d0ba	3291	if (dp->lockid) /* Decrement sub-directory open counter */
marcozecchini	0:9fca2b23d0ba	3292	res = dec_lock(dp->lockid);
marcozecchini	0:9fca2b23d0ba	3293	if (res == FR_OK)
marcozecchini	0:9fca2b23d0ba	3294	#endif
marcozecchini	0:9fca2b23d0ba	3295	dp->fs = 0; /* Invalidate directory object */
marcozecchini	0:9fca2b23d0ba	3296	#if _FS_REENTRANT
marcozecchini	0:9fca2b23d0ba	3297	unlock_fs(fs, FR_OK); /* Unlock volume */
marcozecchini	0:9fca2b23d0ba	3298	#endif
marcozecchini	0:9fca2b23d0ba	3299	}
marcozecchini	0:9fca2b23d0ba	3300	return res;
marcozecchini	0:9fca2b23d0ba	3301	}
marcozecchini	0:9fca2b23d0ba	3302
marcozecchini	0:9fca2b23d0ba	3303
marcozecchini	0:9fca2b23d0ba	3304
marcozecchini	0:9fca2b23d0ba	3305
marcozecchini	0:9fca2b23d0ba	3306	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3307	/* Read Directory Entries in Sequence */
marcozecchini	0:9fca2b23d0ba	3308	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3309
marcozecchini	0:9fca2b23d0ba	3310	FRESULT f_readdir (
marcozecchini	0:9fca2b23d0ba	3311	FATFS_DIR* dp, /* Pointer to the open directory object */
marcozecchini	0:9fca2b23d0ba	3312	FILINFO* fno /* Pointer to file information to return */
marcozecchini	0:9fca2b23d0ba	3313	)
marcozecchini	0:9fca2b23d0ba	3314	{
marcozecchini	0:9fca2b23d0ba	3315	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3316	DEFINE_NAMEBUF;
marcozecchini	0:9fca2b23d0ba	3317
marcozecchini	0:9fca2b23d0ba	3318
marcozecchini	0:9fca2b23d0ba	3319	res = validate(dp); /* Check validity of the object */
marcozecchini	0:9fca2b23d0ba	3320	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3321	if (!fno) {
marcozecchini	0:9fca2b23d0ba	3322	res = dir_sdi(dp, 0); /* Rewind the directory object */
marcozecchini	0:9fca2b23d0ba	3323	} else {
marcozecchini	0:9fca2b23d0ba	3324	INIT_BUF(*dp);
marcozecchini	0:9fca2b23d0ba	3325	res = dir_read(dp, 0); /* Read an item */
marcozecchini	0:9fca2b23d0ba	3326	if (res == FR_NO_FILE) { /* Reached end of directory */
marcozecchini	0:9fca2b23d0ba	3327	dp->sect = 0;
marcozecchini	0:9fca2b23d0ba	3328	res = FR_OK;
marcozecchini	0:9fca2b23d0ba	3329	}
marcozecchini	0:9fca2b23d0ba	3330	if (res == FR_OK) { /* A valid entry is found */
marcozecchini	0:9fca2b23d0ba	3331	get_fileinfo(dp, fno); /* Get the object information */
marcozecchini	0:9fca2b23d0ba	3332	res = dir_next(dp, 0); /* Increment index for next */
marcozecchini	0:9fca2b23d0ba	3333	if (res == FR_NO_FILE) {
marcozecchini	0:9fca2b23d0ba	3334	dp->sect = 0;
marcozecchini	0:9fca2b23d0ba	3335	res = FR_OK;
marcozecchini	0:9fca2b23d0ba	3336	}
marcozecchini	0:9fca2b23d0ba	3337	}
marcozecchini	0:9fca2b23d0ba	3338	FREE_BUF();
marcozecchini	0:9fca2b23d0ba	3339	}
marcozecchini	0:9fca2b23d0ba	3340	}
marcozecchini	0:9fca2b23d0ba	3341
marcozecchini	0:9fca2b23d0ba	3342	LEAVE_FF(dp->fs, res);
marcozecchini	0:9fca2b23d0ba	3343	}
marcozecchini	0:9fca2b23d0ba	3344
marcozecchini	0:9fca2b23d0ba	3345
marcozecchini	0:9fca2b23d0ba	3346
marcozecchini	0:9fca2b23d0ba	3347	#if _USE_FIND
marcozecchini	0:9fca2b23d0ba	3348	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3349	/* Find next file */
marcozecchini	0:9fca2b23d0ba	3350	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3351
marcozecchini	0:9fca2b23d0ba	3352	FRESULT f_findnext (
marcozecchini	0:9fca2b23d0ba	3353	FATFS_DIR* dp, /* Pointer to the open directory object */
marcozecchini	0:9fca2b23d0ba	3354	FILINFO* fno /* Pointer to the file information structure */
marcozecchini	0:9fca2b23d0ba	3355	)
marcozecchini	0:9fca2b23d0ba	3356	{
marcozecchini	0:9fca2b23d0ba	3357	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3358
marcozecchini	0:9fca2b23d0ba	3359
marcozecchini	0:9fca2b23d0ba	3360	for (;;) {
marcozecchini	0:9fca2b23d0ba	3361	res = f_readdir(dp, fno); /* Get a directory item */
marcozecchini	0:9fca2b23d0ba	3362	if (res != FR_OK \|\| !fno \|\| !fno->fname[0]) break; /* Terminate if any error or end of directory */
marcozecchini	0:9fca2b23d0ba	3363	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	3364	if (fno->lfname && pattern_matching(dp->pat, fno->lfname, 0, 0)) break; /* Test for LFN if exist */
marcozecchini	0:9fca2b23d0ba	3365	#endif
marcozecchini	0:9fca2b23d0ba	3366	if (pattern_matching(dp->pat, fno->fname, 0, 0)) break; /* Test for SFN */
marcozecchini	0:9fca2b23d0ba	3367	}
marcozecchini	0:9fca2b23d0ba	3368	return res;
marcozecchini	0:9fca2b23d0ba	3369
marcozecchini	0:9fca2b23d0ba	3370	}
marcozecchini	0:9fca2b23d0ba	3371
marcozecchini	0:9fca2b23d0ba	3372
marcozecchini	0:9fca2b23d0ba	3373
marcozecchini	0:9fca2b23d0ba	3374	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3375	/* Find first file */
marcozecchini	0:9fca2b23d0ba	3376	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3377
marcozecchini	0:9fca2b23d0ba	3378	FRESULT f_findfirst (
marcozecchini	0:9fca2b23d0ba	3379	FATFS_DIR* dp, /* Pointer to the blank directory object */
marcozecchini	0:9fca2b23d0ba	3380	FILINFO* fno, /* Pointer to the file information structure */
marcozecchini	0:9fca2b23d0ba	3381	const TCHAR* path, /* Pointer to the directory to open */
marcozecchini	0:9fca2b23d0ba	3382	const TCHAR* pattern /* Pointer to the matching pattern */
marcozecchini	0:9fca2b23d0ba	3383	)
marcozecchini	0:9fca2b23d0ba	3384	{
marcozecchini	0:9fca2b23d0ba	3385	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3386
marcozecchini	0:9fca2b23d0ba	3387
marcozecchini	0:9fca2b23d0ba	3388	dp->pat = pattern; /* Save pointer to pattern string */
marcozecchini	0:9fca2b23d0ba	3389	res = f_opendir(dp, path); /* Open the target directory */
marcozecchini	0:9fca2b23d0ba	3390	if (res == FR_OK)
marcozecchini	0:9fca2b23d0ba	3391	res = f_findnext(dp, fno); /* Find the first item */
marcozecchini	0:9fca2b23d0ba	3392	return res;
marcozecchini	0:9fca2b23d0ba	3393	}
marcozecchini	0:9fca2b23d0ba	3394
marcozecchini	0:9fca2b23d0ba	3395	#endif /* _USE_FIND */
marcozecchini	0:9fca2b23d0ba	3396
marcozecchini	0:9fca2b23d0ba	3397
marcozecchini	0:9fca2b23d0ba	3398
marcozecchini	0:9fca2b23d0ba	3399	#if _FS_MINIMIZE == 0
marcozecchini	0:9fca2b23d0ba	3400	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3401	/* Get File Status */
marcozecchini	0:9fca2b23d0ba	3402	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3403
marcozecchini	0:9fca2b23d0ba	3404	FRESULT f_stat (
marcozecchini	0:9fca2b23d0ba	3405	const TCHAR* path, /* Pointer to the file path */
marcozecchini	0:9fca2b23d0ba	3406	FILINFO* fno /* Pointer to file information to return */
marcozecchini	0:9fca2b23d0ba	3407	)
marcozecchini	0:9fca2b23d0ba	3408	{
marcozecchini	0:9fca2b23d0ba	3409	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3410	FATFS_DIR dj;
marcozecchini	0:9fca2b23d0ba	3411	DEFINE_NAMEBUF;
marcozecchini	0:9fca2b23d0ba	3412
marcozecchini	0:9fca2b23d0ba	3413
marcozecchini	0:9fca2b23d0ba	3414	/* Get logical drive number */
marcozecchini	0:9fca2b23d0ba	3415	res = find_volume(&dj.fs, &path, 0);
marcozecchini	0:9fca2b23d0ba	3416	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3417	INIT_BUF(dj);
marcozecchini	0:9fca2b23d0ba	3418	res = follow_path(&dj, path); /* Follow the file path */
marcozecchini	0:9fca2b23d0ba	3419	if (res == FR_OK) { /* Follow completed */
marcozecchini	0:9fca2b23d0ba	3420	if (dj.dir) { /* Found an object */
marcozecchini	0:9fca2b23d0ba	3421	if (fno) get_fileinfo(&dj, fno);
marcozecchini	0:9fca2b23d0ba	3422	} else { /* It is root directory */
marcozecchini	0:9fca2b23d0ba	3423	res = FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	3424	}
marcozecchini	0:9fca2b23d0ba	3425	}
marcozecchini	0:9fca2b23d0ba	3426	FREE_BUF();
marcozecchini	0:9fca2b23d0ba	3427	}
marcozecchini	0:9fca2b23d0ba	3428
marcozecchini	0:9fca2b23d0ba	3429	LEAVE_FF(dj.fs, res);
marcozecchini	0:9fca2b23d0ba	3430	}
marcozecchini	0:9fca2b23d0ba	3431
marcozecchini	0:9fca2b23d0ba	3432
marcozecchini	0:9fca2b23d0ba	3433
marcozecchini	0:9fca2b23d0ba	3434	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	3435	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3436	/* Get Number of Free Clusters */
marcozecchini	0:9fca2b23d0ba	3437	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3438
marcozecchini	0:9fca2b23d0ba	3439	FRESULT f_getfree (
marcozecchini	0:9fca2b23d0ba	3440	const TCHAR* path, /* Path name of the logical drive number */
marcozecchini	0:9fca2b23d0ba	3441	DWORD* nclst, /* Pointer to a variable to return number of free clusters */
marcozecchini	0:9fca2b23d0ba	3442	FATFS** fatfs /* Pointer to return pointer to corresponding file system object */
marcozecchini	0:9fca2b23d0ba	3443	)
marcozecchini	0:9fca2b23d0ba	3444	{
marcozecchini	0:9fca2b23d0ba	3445	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3446	FATFS *fs;
marcozecchini	0:9fca2b23d0ba	3447	DWORD nfree, clst, sect, stat;
marcozecchini	0:9fca2b23d0ba	3448	UINT i;
marcozecchini	0:9fca2b23d0ba	3449	BYTE fat, *p;
marcozecchini	0:9fca2b23d0ba	3450
marcozecchini	0:9fca2b23d0ba	3451
marcozecchini	0:9fca2b23d0ba	3452	/* Get logical drive number */
marcozecchini	0:9fca2b23d0ba	3453	res = find_volume(fatfs, &path, 0);
marcozecchini	0:9fca2b23d0ba	3454	fs = *fatfs;
marcozecchini	0:9fca2b23d0ba	3455	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3456	/* If free_clust is valid, return it without full cluster scan */
marcozecchini	0:9fca2b23d0ba	3457	if (fs->free_clust <= fs->n_fatent - 2) {
marcozecchini	0:9fca2b23d0ba	3458	*nclst = fs->free_clust;
marcozecchini	0:9fca2b23d0ba	3459	} else {
marcozecchini	0:9fca2b23d0ba	3460	/* Get number of free clusters */
marcozecchini	0:9fca2b23d0ba	3461	fat = fs->fs_type;
marcozecchini	0:9fca2b23d0ba	3462	nfree = 0;
marcozecchini	0:9fca2b23d0ba	3463	if (fat == FS_FAT12) { /* Sector unalighed entries: Search FAT via regular routine. */
marcozecchini	0:9fca2b23d0ba	3464	clst = 2;
marcozecchini	0:9fca2b23d0ba	3465	do {
marcozecchini	0:9fca2b23d0ba	3466	stat = get_fat(fs, clst);
marcozecchini	0:9fca2b23d0ba	3467	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
marcozecchini	0:9fca2b23d0ba	3468	if (stat == 1) { res = FR_INT_ERR; break; }
marcozecchini	0:9fca2b23d0ba	3469	if (stat == 0) nfree++;
marcozecchini	0:9fca2b23d0ba	3470	} while (++clst < fs->n_fatent);
marcozecchini	0:9fca2b23d0ba	3471	} else { /* Sector alighed entries: Accelerate the FAT search. */
marcozecchini	0:9fca2b23d0ba	3472	clst = fs->n_fatent; sect = fs->fatbase;
marcozecchini	0:9fca2b23d0ba	3473	i = 0; p = 0;
marcozecchini	0:9fca2b23d0ba	3474	do {
marcozecchini	0:9fca2b23d0ba	3475	if (!i) {
marcozecchini	0:9fca2b23d0ba	3476	res = move_window(fs, sect++);
marcozecchini	0:9fca2b23d0ba	3477	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	3478	p = fs->win;
marcozecchini	0:9fca2b23d0ba	3479	i = SS(fs);
marcozecchini	0:9fca2b23d0ba	3480	}
marcozecchini	0:9fca2b23d0ba	3481	if (fat == FS_FAT16) {
marcozecchini	0:9fca2b23d0ba	3482	if (LD_WORD(p) == 0) nfree++;
marcozecchini	0:9fca2b23d0ba	3483	p += 2; i -= 2;
marcozecchini	0:9fca2b23d0ba	3484	} else {
marcozecchini	0:9fca2b23d0ba	3485	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) nfree++;
marcozecchini	0:9fca2b23d0ba	3486	p += 4; i -= 4;
marcozecchini	0:9fca2b23d0ba	3487	}
marcozecchini	0:9fca2b23d0ba	3488	} while (--clst);
marcozecchini	0:9fca2b23d0ba	3489	}
marcozecchini	0:9fca2b23d0ba	3490	fs->free_clust = nfree; /* free_clust is valid */
marcozecchini	0:9fca2b23d0ba	3491	fs->fsi_flag \|= 1; /* FSInfo is to be updated */
marcozecchini	0:9fca2b23d0ba	3492	nclst = nfree; / Return the free clusters */
marcozecchini	0:9fca2b23d0ba	3493	}
marcozecchini	0:9fca2b23d0ba	3494	}
marcozecchini	0:9fca2b23d0ba	3495	LEAVE_FF(fs, res);
marcozecchini	0:9fca2b23d0ba	3496	}
marcozecchini	0:9fca2b23d0ba	3497
marcozecchini	0:9fca2b23d0ba	3498
marcozecchini	0:9fca2b23d0ba	3499
marcozecchini	0:9fca2b23d0ba	3500
marcozecchini	0:9fca2b23d0ba	3501	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3502	/* Truncate File */
marcozecchini	0:9fca2b23d0ba	3503	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3504
marcozecchini	0:9fca2b23d0ba	3505	FRESULT f_truncate (
marcozecchini	0:9fca2b23d0ba	3506	FIL* fp /* Pointer to the file object */
marcozecchini	0:9fca2b23d0ba	3507	)
marcozecchini	0:9fca2b23d0ba	3508	{
marcozecchini	0:9fca2b23d0ba	3509	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3510	DWORD ncl;
marcozecchini	0:9fca2b23d0ba	3511
marcozecchini	0:9fca2b23d0ba	3512
marcozecchini	0:9fca2b23d0ba	3513	res = validate(fp); /* Check validity of the object */
marcozecchini	0:9fca2b23d0ba	3514	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3515	if (fp->err) { /* Check error */
marcozecchini	0:9fca2b23d0ba	3516	res = (FRESULT)fp->err;
marcozecchini	0:9fca2b23d0ba	3517	} else {
marcozecchini	0:9fca2b23d0ba	3518	if (!(fp->flag & FA_WRITE)) /* Check access mode */
marcozecchini	0:9fca2b23d0ba	3519	res = FR_DENIED;
marcozecchini	0:9fca2b23d0ba	3520	}
marcozecchini	0:9fca2b23d0ba	3521	}
marcozecchini	0:9fca2b23d0ba	3522	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3523	if (fp->fsize > fp->fptr) {
marcozecchini	0:9fca2b23d0ba	3524	fp->fsize = fp->fptr; /* Set file size to current R/W point */
marcozecchini	0:9fca2b23d0ba	3525	fp->flag \|= FA__WRITTEN;
marcozecchini	0:9fca2b23d0ba	3526	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
marcozecchini	0:9fca2b23d0ba	3527	res = remove_chain(fp->fs, fp->sclust);
marcozecchini	0:9fca2b23d0ba	3528	fp->sclust = 0;
marcozecchini	0:9fca2b23d0ba	3529	} else { /* When truncate a part of the file, remove remaining clusters */
marcozecchini	0:9fca2b23d0ba	3530	ncl = get_fat(fp->fs, fp->clust);
marcozecchini	0:9fca2b23d0ba	3531	res = FR_OK;
marcozecchini	0:9fca2b23d0ba	3532	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	3533	if (ncl == 1) res = FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	3534	if (res == FR_OK && ncl < fp->fs->n_fatent) {
marcozecchini	0:9fca2b23d0ba	3535	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
marcozecchini	0:9fca2b23d0ba	3536	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
marcozecchini	0:9fca2b23d0ba	3537	}
marcozecchini	0:9fca2b23d0ba	3538	}
marcozecchini	0:9fca2b23d0ba	3539	#if !_FS_TINY
marcozecchini	0:9fca2b23d0ba	3540	if (res == FR_OK && (fp->flag & FA__DIRTY)) {
marcozecchini	0:9fca2b23d0ba	3541	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
marcozecchini	0:9fca2b23d0ba	3542	res = FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	3543	else
marcozecchini	0:9fca2b23d0ba	3544	fp->flag &= ~FA__DIRTY;
marcozecchini	0:9fca2b23d0ba	3545	}
marcozecchini	0:9fca2b23d0ba	3546	#endif
marcozecchini	0:9fca2b23d0ba	3547	}
marcozecchini	0:9fca2b23d0ba	3548	if (res != FR_OK) fp->err = (FRESULT)res;
marcozecchini	0:9fca2b23d0ba	3549	}
marcozecchini	0:9fca2b23d0ba	3550
marcozecchini	0:9fca2b23d0ba	3551	LEAVE_FF(fp->fs, res);
marcozecchini	0:9fca2b23d0ba	3552	}
marcozecchini	0:9fca2b23d0ba	3553
marcozecchini	0:9fca2b23d0ba	3554
marcozecchini	0:9fca2b23d0ba	3555
marcozecchini	0:9fca2b23d0ba	3556
marcozecchini	0:9fca2b23d0ba	3557	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3558	/* Delete a File or Directory */
marcozecchini	0:9fca2b23d0ba	3559	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3560
marcozecchini	0:9fca2b23d0ba	3561	FRESULT f_unlink (
marcozecchini	0:9fca2b23d0ba	3562	const TCHAR* path /* Pointer to the file or directory path */
marcozecchini	0:9fca2b23d0ba	3563	)
marcozecchini	0:9fca2b23d0ba	3564	{
marcozecchini	0:9fca2b23d0ba	3565	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3566	FATFS_DIR dj, sdj;
marcozecchini	0:9fca2b23d0ba	3567	BYTE *dir;
marcozecchini	0:9fca2b23d0ba	3568	DWORD dclst = 0;
marcozecchini	0:9fca2b23d0ba	3569	DEFINE_NAMEBUF;
marcozecchini	0:9fca2b23d0ba	3570
marcozecchini	0:9fca2b23d0ba	3571
marcozecchini	0:9fca2b23d0ba	3572	/* Get logical drive number */
marcozecchini	0:9fca2b23d0ba	3573	res = find_volume(&dj.fs, &path, 1);
marcozecchini	0:9fca2b23d0ba	3574	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3575	INIT_BUF(dj);
marcozecchini	0:9fca2b23d0ba	3576	res = follow_path(&dj, path); /* Follow the file path */
marcozecchini	0:9fca2b23d0ba	3577	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
marcozecchini	0:9fca2b23d0ba	3578	res = FR_INVALID_NAME; /* Cannot remove dot entry */
marcozecchini	0:9fca2b23d0ba	3579	#if _FS_LOCK
marcozecchini	0:9fca2b23d0ba	3580	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open object */
marcozecchini	0:9fca2b23d0ba	3581	#endif
marcozecchini	0:9fca2b23d0ba	3582	if (res == FR_OK) { /* The object is accessible */
marcozecchini	0:9fca2b23d0ba	3583	dir = dj.dir;
marcozecchini	0:9fca2b23d0ba	3584	if (!dir) {
marcozecchini	0:9fca2b23d0ba	3585	res = FR_INVALID_NAME; /* Cannot remove the origin directory */
marcozecchini	0:9fca2b23d0ba	3586	} else {
marcozecchini	0:9fca2b23d0ba	3587	if (dir[DIR_Attr] & AM_RDO)
marcozecchini	0:9fca2b23d0ba	3588	res = FR_DENIED; /* Cannot remove R/O object */
marcozecchini	0:9fca2b23d0ba	3589	}
marcozecchini	0:9fca2b23d0ba	3590	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3591	dclst = ld_clust(dj.fs, dir);
marcozecchini	0:9fca2b23d0ba	3592	if (dclst && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-directory ? */
marcozecchini	0:9fca2b23d0ba	3593	#if _FS_RPATH
marcozecchini	0:9fca2b23d0ba	3594	if (dclst == dj.fs->cdir) { /* Is it the current directory? */
marcozecchini	0:9fca2b23d0ba	3595	res = FR_DENIED;
marcozecchini	0:9fca2b23d0ba	3596	} else
marcozecchini	0:9fca2b23d0ba	3597	#endif
marcozecchini	0:9fca2b23d0ba	3598	{
marcozecchini	0:9fca2b23d0ba	3599	mem_cpy(&sdj, &dj, sizeof (FATFS_DIR)); /* Open the sub-directory */
marcozecchini	0:9fca2b23d0ba	3600	sdj.sclust = dclst;
marcozecchini	0:9fca2b23d0ba	3601	res = dir_sdi(&sdj, 2);
marcozecchini	0:9fca2b23d0ba	3602	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3603	res = dir_read(&sdj, 0); /* Read an item (excluding dot entries) */
marcozecchini	0:9fca2b23d0ba	3604	if (res == FR_OK) res = FR_DENIED; /* Not empty? (cannot remove) */
marcozecchini	0:9fca2b23d0ba	3605	if (res == FR_NO_FILE) res = FR_OK; /* Empty? (can remove) */
marcozecchini	0:9fca2b23d0ba	3606	}
marcozecchini	0:9fca2b23d0ba	3607	}
marcozecchini	0:9fca2b23d0ba	3608	}
marcozecchini	0:9fca2b23d0ba	3609	}
marcozecchini	0:9fca2b23d0ba	3610	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3611	res = dir_remove(&dj); /* Remove the directory entry */
marcozecchini	0:9fca2b23d0ba	3612	if (res == FR_OK && dclst) /* Remove the cluster chain if exist */
marcozecchini	0:9fca2b23d0ba	3613	res = remove_chain(dj.fs, dclst);
marcozecchini	0:9fca2b23d0ba	3614	if (res == FR_OK) res = sync_fs(dj.fs);
marcozecchini	0:9fca2b23d0ba	3615	}
marcozecchini	0:9fca2b23d0ba	3616	}
marcozecchini	0:9fca2b23d0ba	3617	FREE_BUF();
marcozecchini	0:9fca2b23d0ba	3618	}
marcozecchini	0:9fca2b23d0ba	3619
marcozecchini	0:9fca2b23d0ba	3620	LEAVE_FF(dj.fs, res);
marcozecchini	0:9fca2b23d0ba	3621	}
marcozecchini	0:9fca2b23d0ba	3622
marcozecchini	0:9fca2b23d0ba	3623
marcozecchini	0:9fca2b23d0ba	3624
marcozecchini	0:9fca2b23d0ba	3625
marcozecchini	0:9fca2b23d0ba	3626	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3627	/* Create a Directory */
marcozecchini	0:9fca2b23d0ba	3628	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3629
marcozecchini	0:9fca2b23d0ba	3630	FRESULT f_mkdir (
marcozecchini	0:9fca2b23d0ba	3631	const TCHAR* path /* Pointer to the directory path */
marcozecchini	0:9fca2b23d0ba	3632	)
marcozecchini	0:9fca2b23d0ba	3633	{
marcozecchini	0:9fca2b23d0ba	3634	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3635	FATFS_DIR dj;
marcozecchini	0:9fca2b23d0ba	3636	BYTE *dir, n;
marcozecchini	0:9fca2b23d0ba	3637	DWORD dsc, dcl, pcl, tm = GET_FATTIME();
marcozecchini	0:9fca2b23d0ba	3638	DEFINE_NAMEBUF;
marcozecchini	0:9fca2b23d0ba	3639
marcozecchini	0:9fca2b23d0ba	3640
marcozecchini	0:9fca2b23d0ba	3641	/* Get logical drive number */
marcozecchini	0:9fca2b23d0ba	3642	res = find_volume(&dj.fs, &path, 1);
marcozecchini	0:9fca2b23d0ba	3643	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3644	INIT_BUF(dj);
marcozecchini	0:9fca2b23d0ba	3645	res = follow_path(&dj, path); /* Follow the file path */
marcozecchini	0:9fca2b23d0ba	3646	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
marcozecchini	0:9fca2b23d0ba	3647	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NSFLAG] & NS_DOT))
marcozecchini	0:9fca2b23d0ba	3648	res = FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	3649	if (res == FR_NO_FILE) { /* Can create a new directory */
marcozecchini	0:9fca2b23d0ba	3650	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
marcozecchini	0:9fca2b23d0ba	3651	res = FR_OK;
marcozecchini	0:9fca2b23d0ba	3652	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
marcozecchini	0:9fca2b23d0ba	3653	if (dcl == 1) res = FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	3654	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	3655	if (res == FR_OK) /* Flush FAT */
marcozecchini	0:9fca2b23d0ba	3656	res = sync_window(dj.fs);
marcozecchini	0:9fca2b23d0ba	3657	if (res == FR_OK) { /* Initialize the new directory table */
marcozecchini	0:9fca2b23d0ba	3658	dsc = clust2sect(dj.fs, dcl);
marcozecchini	0:9fca2b23d0ba	3659	dir = dj.fs->win;
marcozecchini	0:9fca2b23d0ba	3660	mem_set(dir, 0, SS(dj.fs));
marcozecchini	0:9fca2b23d0ba	3661	mem_set(dir + DIR_Name, ' ', 11); /* Create "." entry */
marcozecchini	0:9fca2b23d0ba	3662	dir[DIR_Name] = '.';
marcozecchini	0:9fca2b23d0ba	3663	dir[DIR_Attr] = AM_DIR;
marcozecchini	0:9fca2b23d0ba	3664	ST_DWORD(dir + DIR_WrtTime, tm);
marcozecchini	0:9fca2b23d0ba	3665	st_clust(dir, dcl);
marcozecchini	0:9fca2b23d0ba	3666	mem_cpy(dir + SZ_DIRE, dir, SZ_DIRE); /* Create ".." entry */
marcozecchini	0:9fca2b23d0ba	3667	dir[SZ_DIRE + 1] = '.'; pcl = dj.sclust;
marcozecchini	0:9fca2b23d0ba	3668	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
marcozecchini	0:9fca2b23d0ba	3669	pcl = 0;
marcozecchini	0:9fca2b23d0ba	3670	st_clust(dir + SZ_DIRE, pcl);
marcozecchini	0:9fca2b23d0ba	3671	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
marcozecchini	0:9fca2b23d0ba	3672	dj.fs->winsect = dsc++;
marcozecchini	0:9fca2b23d0ba	3673	dj.fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	3674	res = sync_window(dj.fs);
marcozecchini	0:9fca2b23d0ba	3675	if (res != FR_OK) break;
marcozecchini	0:9fca2b23d0ba	3676	mem_set(dir, 0, SS(dj.fs));
marcozecchini	0:9fca2b23d0ba	3677	}
marcozecchini	0:9fca2b23d0ba	3678	}
marcozecchini	0:9fca2b23d0ba	3679	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
marcozecchini	0:9fca2b23d0ba	3680	if (res != FR_OK) {
marcozecchini	0:9fca2b23d0ba	3681	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
marcozecchini	0:9fca2b23d0ba	3682	} else {
marcozecchini	0:9fca2b23d0ba	3683	dir = dj.dir;
marcozecchini	0:9fca2b23d0ba	3684	dir[DIR_Attr] = AM_DIR; /* Attribute */
marcozecchini	0:9fca2b23d0ba	3685	ST_DWORD(dir + DIR_WrtTime, tm); /* Created time */
marcozecchini	0:9fca2b23d0ba	3686	st_clust(dir, dcl); /* Table start cluster */
marcozecchini	0:9fca2b23d0ba	3687	dj.fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	3688	res = sync_fs(dj.fs);
marcozecchini	0:9fca2b23d0ba	3689	}
marcozecchini	0:9fca2b23d0ba	3690	}
marcozecchini	0:9fca2b23d0ba	3691	FREE_BUF();
marcozecchini	0:9fca2b23d0ba	3692	}
marcozecchini	0:9fca2b23d0ba	3693
marcozecchini	0:9fca2b23d0ba	3694	LEAVE_FF(dj.fs, res);
marcozecchini	0:9fca2b23d0ba	3695	}
marcozecchini	0:9fca2b23d0ba	3696
marcozecchini	0:9fca2b23d0ba	3697
marcozecchini	0:9fca2b23d0ba	3698
marcozecchini	0:9fca2b23d0ba	3699
marcozecchini	0:9fca2b23d0ba	3700	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3701	/* Change Attribute */
marcozecchini	0:9fca2b23d0ba	3702	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3703
marcozecchini	0:9fca2b23d0ba	3704	FRESULT f_chmod (
marcozecchini	0:9fca2b23d0ba	3705	const TCHAR* path, /* Pointer to the file path */
marcozecchini	0:9fca2b23d0ba	3706	BYTE attr, /* Attribute bits */
marcozecchini	0:9fca2b23d0ba	3707	BYTE mask /* Attribute mask to change */
marcozecchini	0:9fca2b23d0ba	3708	)
marcozecchini	0:9fca2b23d0ba	3709	{
marcozecchini	0:9fca2b23d0ba	3710	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3711	FATFS_DIR dj;
marcozecchini	0:9fca2b23d0ba	3712	BYTE *dir;
marcozecchini	0:9fca2b23d0ba	3713	DEFINE_NAMEBUF;
marcozecchini	0:9fca2b23d0ba	3714
marcozecchini	0:9fca2b23d0ba	3715
marcozecchini	0:9fca2b23d0ba	3716	res = find_volume(&dj.fs, &path, 1); /* Get logical drive number */
marcozecchini	0:9fca2b23d0ba	3717	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3718	INIT_BUF(dj);
marcozecchini	0:9fca2b23d0ba	3719	res = follow_path(&dj, path); /* Follow the file path */
marcozecchini	0:9fca2b23d0ba	3720	FREE_BUF();
marcozecchini	0:9fca2b23d0ba	3721	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
marcozecchini	0:9fca2b23d0ba	3722	res = FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	3723	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3724	dir = dj.dir;
marcozecchini	0:9fca2b23d0ba	3725	if (!dir) { /* Is it a root directory? */
marcozecchini	0:9fca2b23d0ba	3726	res = FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	3727	} else { /* File or sub directory */
marcozecchini	0:9fca2b23d0ba	3728	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
marcozecchini	0:9fca2b23d0ba	3729	dir[DIR_Attr] = (attr & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
marcozecchini	0:9fca2b23d0ba	3730	dj.fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	3731	res = sync_fs(dj.fs);
marcozecchini	0:9fca2b23d0ba	3732	}
marcozecchini	0:9fca2b23d0ba	3733	}
marcozecchini	0:9fca2b23d0ba	3734	}
marcozecchini	0:9fca2b23d0ba	3735
marcozecchini	0:9fca2b23d0ba	3736	LEAVE_FF(dj.fs, res);
marcozecchini	0:9fca2b23d0ba	3737	}
marcozecchini	0:9fca2b23d0ba	3738
marcozecchini	0:9fca2b23d0ba	3739
marcozecchini	0:9fca2b23d0ba	3740
marcozecchini	0:9fca2b23d0ba	3741
marcozecchini	0:9fca2b23d0ba	3742	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3743	/* Rename File/Directory */
marcozecchini	0:9fca2b23d0ba	3744	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3745
marcozecchini	0:9fca2b23d0ba	3746	FRESULT f_rename (
marcozecchini	0:9fca2b23d0ba	3747	const TCHAR* path_old, /* Pointer to the object to be renamed */
marcozecchini	0:9fca2b23d0ba	3748	const TCHAR* path_new /* Pointer to the new name */
marcozecchini	0:9fca2b23d0ba	3749	)
marcozecchini	0:9fca2b23d0ba	3750	{
marcozecchini	0:9fca2b23d0ba	3751	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3752	FATFS_DIR djo, djn;
marcozecchini	0:9fca2b23d0ba	3753	BYTE buf[21], *dir;
marcozecchini	0:9fca2b23d0ba	3754	DWORD dw;
marcozecchini	0:9fca2b23d0ba	3755	DEFINE_NAMEBUF;
marcozecchini	0:9fca2b23d0ba	3756
marcozecchini	0:9fca2b23d0ba	3757
marcozecchini	0:9fca2b23d0ba	3758	/* Get logical drive number of the source object */
marcozecchini	0:9fca2b23d0ba	3759	res = find_volume(&djo.fs, &path_old, 1);
marcozecchini	0:9fca2b23d0ba	3760	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3761	djn.fs = djo.fs;
marcozecchini	0:9fca2b23d0ba	3762	INIT_BUF(djo);
marcozecchini	0:9fca2b23d0ba	3763	res = follow_path(&djo, path_old); /* Check old object */
marcozecchini	0:9fca2b23d0ba	3764	if (_FS_RPATH && res == FR_OK && (djo.fn[NSFLAG] & NS_DOT))
marcozecchini	0:9fca2b23d0ba	3765	res = FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	3766	#if _FS_LOCK
marcozecchini	0:9fca2b23d0ba	3767	if (res == FR_OK) res = chk_lock(&djo, 2);
marcozecchini	0:9fca2b23d0ba	3768	#endif
marcozecchini	0:9fca2b23d0ba	3769	if (res == FR_OK) { /* Old object is found */
marcozecchini	0:9fca2b23d0ba	3770	if (!djo.dir) { /* Is root dir? */
marcozecchini	0:9fca2b23d0ba	3771	res = FR_NO_FILE;
marcozecchini	0:9fca2b23d0ba	3772	} else {
marcozecchini	0:9fca2b23d0ba	3773	mem_cpy(buf, djo.dir + DIR_Attr, 21); /* Save information about object except name */
marcozecchini	0:9fca2b23d0ba	3774	mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Duplicate the directory object */
marcozecchini	0:9fca2b23d0ba	3775	if (get_ldnumber(&path_new) >= 0) /* Snip drive number off and ignore it */
marcozecchini	0:9fca2b23d0ba	3776	res = follow_path(&djn, path_new); /* and make sure if new object name is not conflicting */
marcozecchini	0:9fca2b23d0ba	3777	else
marcozecchini	0:9fca2b23d0ba	3778	res = FR_INVALID_DRIVE;
marcozecchini	0:9fca2b23d0ba	3779	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
marcozecchini	0:9fca2b23d0ba	3780	if (res == FR_NO_FILE) { /* It is a valid path and no name collision */
marcozecchini	0:9fca2b23d0ba	3781	res = dir_register(&djn); /* Register the new entry */
marcozecchini	0:9fca2b23d0ba	3782	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3783	/* Start of critical section where any interruption can cause a cross-link */
marcozecchini	0:9fca2b23d0ba	3784	dir = djn.dir; /* Copy information about object except name */
marcozecchini	0:9fca2b23d0ba	3785	mem_cpy(dir + 13, buf + 2, 19);
marcozecchini	0:9fca2b23d0ba	3786	dir[DIR_Attr] = buf[0] \| AM_ARC;
marcozecchini	0:9fca2b23d0ba	3787	djo.fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	3788	if ((dir[DIR_Attr] & AM_DIR) && djo.sclust != djn.sclust) { /* Update .. entry in the sub-directory if needed */
marcozecchini	0:9fca2b23d0ba	3789	dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
marcozecchini	0:9fca2b23d0ba	3790	if (!dw) {
marcozecchini	0:9fca2b23d0ba	3791	res = FR_INT_ERR;
marcozecchini	0:9fca2b23d0ba	3792	} else {
marcozecchini	0:9fca2b23d0ba	3793	res = move_window(djo.fs, dw);
marcozecchini	0:9fca2b23d0ba	3794	dir = djo.fs->win + SZ_DIRE * 1; /* Ptr to .. entry */
marcozecchini	0:9fca2b23d0ba	3795	if (res == FR_OK && dir[1] == '.') {
marcozecchini	0:9fca2b23d0ba	3796	st_clust(dir, djn.sclust);
marcozecchini	0:9fca2b23d0ba	3797	djo.fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	3798	}
marcozecchini	0:9fca2b23d0ba	3799	}
marcozecchini	0:9fca2b23d0ba	3800	}
marcozecchini	0:9fca2b23d0ba	3801	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3802	res = dir_remove(&djo); /* Remove old entry */
marcozecchini	0:9fca2b23d0ba	3803	if (res == FR_OK)
marcozecchini	0:9fca2b23d0ba	3804	res = sync_fs(djo.fs);
marcozecchini	0:9fca2b23d0ba	3805	}
marcozecchini	0:9fca2b23d0ba	3806	/* End of critical section */
marcozecchini	0:9fca2b23d0ba	3807	}
marcozecchini	0:9fca2b23d0ba	3808	}
marcozecchini	0:9fca2b23d0ba	3809	}
marcozecchini	0:9fca2b23d0ba	3810	}
marcozecchini	0:9fca2b23d0ba	3811	FREE_BUF();
marcozecchini	0:9fca2b23d0ba	3812	}
marcozecchini	0:9fca2b23d0ba	3813
marcozecchini	0:9fca2b23d0ba	3814	LEAVE_FF(djo.fs, res);
marcozecchini	0:9fca2b23d0ba	3815	}
marcozecchini	0:9fca2b23d0ba	3816
marcozecchini	0:9fca2b23d0ba	3817
marcozecchini	0:9fca2b23d0ba	3818
marcozecchini	0:9fca2b23d0ba	3819
marcozecchini	0:9fca2b23d0ba	3820	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3821	/* Change Timestamp */
marcozecchini	0:9fca2b23d0ba	3822	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3823
marcozecchini	0:9fca2b23d0ba	3824	FRESULT f_utime (
marcozecchini	0:9fca2b23d0ba	3825	const TCHAR* path, /* Pointer to the file/directory name */
marcozecchini	0:9fca2b23d0ba	3826	const FILINFO* fno /* Pointer to the time stamp to be set */
marcozecchini	0:9fca2b23d0ba	3827	)
marcozecchini	0:9fca2b23d0ba	3828	{
marcozecchini	0:9fca2b23d0ba	3829	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3830	FATFS_DIR dj;
marcozecchini	0:9fca2b23d0ba	3831	BYTE *dir;
marcozecchini	0:9fca2b23d0ba	3832	DEFINE_NAMEBUF;
marcozecchini	0:9fca2b23d0ba	3833
marcozecchini	0:9fca2b23d0ba	3834
marcozecchini	0:9fca2b23d0ba	3835	/* Get logical drive number */
marcozecchini	0:9fca2b23d0ba	3836	res = find_volume(&dj.fs, &path, 1);
marcozecchini	0:9fca2b23d0ba	3837	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3838	INIT_BUF(dj);
marcozecchini	0:9fca2b23d0ba	3839	res = follow_path(&dj, path); /* Follow the file path */
marcozecchini	0:9fca2b23d0ba	3840	FREE_BUF();
marcozecchini	0:9fca2b23d0ba	3841	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
marcozecchini	0:9fca2b23d0ba	3842	res = FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	3843	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3844	dir = dj.dir;
marcozecchini	0:9fca2b23d0ba	3845	if (!dir) { /* Root directory */
marcozecchini	0:9fca2b23d0ba	3846	res = FR_INVALID_NAME;
marcozecchini	0:9fca2b23d0ba	3847	} else { /* File or sub-directory */
marcozecchini	0:9fca2b23d0ba	3848	ST_WORD(dir + DIR_WrtTime, fno->ftime);
marcozecchini	0:9fca2b23d0ba	3849	ST_WORD(dir + DIR_WrtDate, fno->fdate);
marcozecchini	0:9fca2b23d0ba	3850	dj.fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	3851	res = sync_fs(dj.fs);
marcozecchini	0:9fca2b23d0ba	3852	}
marcozecchini	0:9fca2b23d0ba	3853	}
marcozecchini	0:9fca2b23d0ba	3854	}
marcozecchini	0:9fca2b23d0ba	3855
marcozecchini	0:9fca2b23d0ba	3856	LEAVE_FF(dj.fs, res);
marcozecchini	0:9fca2b23d0ba	3857	}
marcozecchini	0:9fca2b23d0ba	3858
marcozecchini	0:9fca2b23d0ba	3859	#endif /* !_FS_READONLY */
marcozecchini	0:9fca2b23d0ba	3860	#endif /* _FS_MINIMIZE == 0 */
marcozecchini	0:9fca2b23d0ba	3861	#endif /* _FS_MINIMIZE <= 1 */
marcozecchini	0:9fca2b23d0ba	3862	#endif /* _FS_MINIMIZE <= 2 */
marcozecchini	0:9fca2b23d0ba	3863
marcozecchini	0:9fca2b23d0ba	3864
marcozecchini	0:9fca2b23d0ba	3865
marcozecchini	0:9fca2b23d0ba	3866
marcozecchini	0:9fca2b23d0ba	3867	#if _USE_LABEL
marcozecchini	0:9fca2b23d0ba	3868	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3869	/* Get volume label */
marcozecchini	0:9fca2b23d0ba	3870	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3871
marcozecchini	0:9fca2b23d0ba	3872	FRESULT f_getlabel (
marcozecchini	0:9fca2b23d0ba	3873	const TCHAR* path, /* Path name of the logical drive number */
marcozecchini	0:9fca2b23d0ba	3874	TCHAR* label, /* Pointer to a buffer to return the volume label */
marcozecchini	0:9fca2b23d0ba	3875	DWORD* vsn /* Pointer to a variable to return the volume serial number */
marcozecchini	0:9fca2b23d0ba	3876	)
marcozecchini	0:9fca2b23d0ba	3877	{
marcozecchini	0:9fca2b23d0ba	3878	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3879	FATFS_DIR dj;
marcozecchini	0:9fca2b23d0ba	3880	UINT i, j;
marcozecchini	0:9fca2b23d0ba	3881	#if _USE_LFN && _LFN_UNICODE
marcozecchini	0:9fca2b23d0ba	3882	WCHAR w;
marcozecchini	0:9fca2b23d0ba	3883	#endif
marcozecchini	0:9fca2b23d0ba	3884
marcozecchini	0:9fca2b23d0ba	3885
marcozecchini	0:9fca2b23d0ba	3886	/* Get logical drive number */
marcozecchini	0:9fca2b23d0ba	3887	res = find_volume(&dj.fs, &path, 0);
marcozecchini	0:9fca2b23d0ba	3888
marcozecchini	0:9fca2b23d0ba	3889	/* Get volume label */
marcozecchini	0:9fca2b23d0ba	3890	if (res == FR_OK && label) {
marcozecchini	0:9fca2b23d0ba	3891	dj.sclust = 0; /* Open root directory */
marcozecchini	0:9fca2b23d0ba	3892	res = dir_sdi(&dj, 0);
marcozecchini	0:9fca2b23d0ba	3893	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3894	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
marcozecchini	0:9fca2b23d0ba	3895	if (res == FR_OK) { /* A volume label is exist */
marcozecchini	0:9fca2b23d0ba	3896	#if _USE_LFN && _LFN_UNICODE
marcozecchini	0:9fca2b23d0ba	3897	i = j = 0;
marcozecchini	0:9fca2b23d0ba	3898	do {
marcozecchini	0:9fca2b23d0ba	3899	w = (i < 11) ? dj.dir[i++] : ' ';
marcozecchini	0:9fca2b23d0ba	3900	if (IsDBCS1(w) && i < 11 && IsDBCS2(dj.dir[i]))
marcozecchini	0:9fca2b23d0ba	3901	w = w << 8 \| dj.dir[i++];
marcozecchini	0:9fca2b23d0ba	3902	label[j++] = ff_convert(w, 1); /* OEM -> Unicode */
marcozecchini	0:9fca2b23d0ba	3903	} while (j < 11);
marcozecchini	0:9fca2b23d0ba	3904	#else
marcozecchini	0:9fca2b23d0ba	3905	mem_cpy(label, dj.dir, 11);
marcozecchini	0:9fca2b23d0ba	3906	#endif
marcozecchini	0:9fca2b23d0ba	3907	j = 11;
marcozecchini	0:9fca2b23d0ba	3908	do {
marcozecchini	0:9fca2b23d0ba	3909	label[j] = 0;
marcozecchini	0:9fca2b23d0ba	3910	if (!j) break;
marcozecchini	0:9fca2b23d0ba	3911	} while (label[--j] == ' ');
marcozecchini	0:9fca2b23d0ba	3912	}
marcozecchini	0:9fca2b23d0ba	3913	if (res == FR_NO_FILE) { /* No label, return nul string */
marcozecchini	0:9fca2b23d0ba	3914	label[0] = 0;
marcozecchini	0:9fca2b23d0ba	3915	res = FR_OK;
marcozecchini	0:9fca2b23d0ba	3916	}
marcozecchini	0:9fca2b23d0ba	3917	}
marcozecchini	0:9fca2b23d0ba	3918	}
marcozecchini	0:9fca2b23d0ba	3919
marcozecchini	0:9fca2b23d0ba	3920	/* Get volume serial number */
marcozecchini	0:9fca2b23d0ba	3921	if (res == FR_OK && vsn) {
marcozecchini	0:9fca2b23d0ba	3922	res = move_window(dj.fs, dj.fs->volbase);
marcozecchini	0:9fca2b23d0ba	3923	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3924	i = dj.fs->fs_type == FS_FAT32 ? BS_VolID32 : BS_VolID;
marcozecchini	0:9fca2b23d0ba	3925	*vsn = LD_DWORD(&dj.fs->win[i]);
marcozecchini	0:9fca2b23d0ba	3926	}
marcozecchini	0:9fca2b23d0ba	3927	}
marcozecchini	0:9fca2b23d0ba	3928
marcozecchini	0:9fca2b23d0ba	3929	LEAVE_FF(dj.fs, res);
marcozecchini	0:9fca2b23d0ba	3930	}
marcozecchini	0:9fca2b23d0ba	3931
marcozecchini	0:9fca2b23d0ba	3932
marcozecchini	0:9fca2b23d0ba	3933
marcozecchini	0:9fca2b23d0ba	3934	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	3935	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3936	/* Set volume label */
marcozecchini	0:9fca2b23d0ba	3937	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	3938
marcozecchini	0:9fca2b23d0ba	3939	FRESULT f_setlabel (
marcozecchini	0:9fca2b23d0ba	3940	const TCHAR* label /* Pointer to the volume label to set */
marcozecchini	0:9fca2b23d0ba	3941	)
marcozecchini	0:9fca2b23d0ba	3942	{
marcozecchini	0:9fca2b23d0ba	3943	FRESULT res;
marcozecchini	0:9fca2b23d0ba	3944	FATFS_DIR dj;
marcozecchini	0:9fca2b23d0ba	3945	BYTE vn[11];
marcozecchini	0:9fca2b23d0ba	3946	UINT i, j, sl;
marcozecchini	0:9fca2b23d0ba	3947	WCHAR w;
marcozecchini	0:9fca2b23d0ba	3948	DWORD tm;
marcozecchini	0:9fca2b23d0ba	3949
marcozecchini	0:9fca2b23d0ba	3950
marcozecchini	0:9fca2b23d0ba	3951	/* Get logical drive number */
marcozecchini	0:9fca2b23d0ba	3952	res = find_volume(&dj.fs, &label, 1);
marcozecchini	0:9fca2b23d0ba	3953	if (res) LEAVE_FF(dj.fs, res);
marcozecchini	0:9fca2b23d0ba	3954
marcozecchini	0:9fca2b23d0ba	3955	/* Create a volume label in directory form */
marcozecchini	0:9fca2b23d0ba	3956	vn[0] = 0;
marcozecchini	0:9fca2b23d0ba	3957	for (sl = 0; label[sl]; sl++) ; /* Get name length */
marcozecchini	0:9fca2b23d0ba	3958	for ( ; sl && label[sl - 1] == ' '; sl--) ; /* Remove trailing spaces */
marcozecchini	0:9fca2b23d0ba	3959	if (sl) { /* Create volume label in directory form */
marcozecchini	0:9fca2b23d0ba	3960	i = j = 0;
marcozecchini	0:9fca2b23d0ba	3961	do {
marcozecchini	0:9fca2b23d0ba	3962	#if _USE_LFN && _LFN_UNICODE
marcozecchini	0:9fca2b23d0ba	3963	w = ff_convert(ff_wtoupper(label[i++]), 0);
marcozecchini	0:9fca2b23d0ba	3964	#else
marcozecchini	0:9fca2b23d0ba	3965	w = (BYTE)label[i++];
marcozecchini	0:9fca2b23d0ba	3966	if (IsDBCS1(w))
marcozecchini	0:9fca2b23d0ba	3967	w = (j < 10 && i < sl && IsDBCS2(label[i])) ? w << 8 \| (BYTE)label[i++] : 0;
marcozecchini	0:9fca2b23d0ba	3968	#if _USE_LFN
marcozecchini	0:9fca2b23d0ba	3969	w = ff_convert(ff_wtoupper(ff_convert(w, 1)), 0);
marcozecchini	0:9fca2b23d0ba	3970	#else
marcozecchini	0:9fca2b23d0ba	3971	if (IsLower(w)) w -= 0x20; /* To upper ASCII characters */
marcozecchini	0:9fca2b23d0ba	3972	#ifdef _EXCVT
marcozecchini	0:9fca2b23d0ba	3973	if (w >= 0x80) w = ExCvt[w - 0x80]; /* To upper extended characters (SBCS cfg) */
marcozecchini	0:9fca2b23d0ba	3974	#else
marcozecchini	0:9fca2b23d0ba	3975	if (!_DF1S && w >= 0x80) w = 0; /* Reject extended characters (ASCII cfg) */
marcozecchini	0:9fca2b23d0ba	3976	#endif
marcozecchini	0:9fca2b23d0ba	3977	#endif
marcozecchini	0:9fca2b23d0ba	3978	#endif
marcozecchini	0:9fca2b23d0ba	3979	if (!w \|\| chk_chr("\"+,.:;<=>\?[]\|\x7F", w) \|\| j >= (UINT)((w >= 0x100) ? 10 : 11)) / Reject invalid characters for volume label */
marcozecchini	0:9fca2b23d0ba	3980	LEAVE_FF(dj.fs, FR_INVALID_NAME);
marcozecchini	0:9fca2b23d0ba	3981	if (w >= 0x100) vn[j++] = (BYTE)(w >> 8);
marcozecchini	0:9fca2b23d0ba	3982	vn[j++] = (BYTE)w;
marcozecchini	0:9fca2b23d0ba	3983	} while (i < sl);
marcozecchini	0:9fca2b23d0ba	3984	while (j < 11) vn[j++] = ' '; /* Fill remaining name field */
marcozecchini	0:9fca2b23d0ba	3985	if (vn[0] == DDEM) LEAVE_FF(dj.fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */
marcozecchini	0:9fca2b23d0ba	3986	}
marcozecchini	0:9fca2b23d0ba	3987
marcozecchini	0:9fca2b23d0ba	3988	/* Set volume label */
marcozecchini	0:9fca2b23d0ba	3989	dj.sclust = 0; /* Open root directory */
marcozecchini	0:9fca2b23d0ba	3990	res = dir_sdi(&dj, 0);
marcozecchini	0:9fca2b23d0ba	3991	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	3992	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
marcozecchini	0:9fca2b23d0ba	3993	if (res == FR_OK) { /* A volume label is found */
marcozecchini	0:9fca2b23d0ba	3994	if (vn[0]) {
marcozecchini	0:9fca2b23d0ba	3995	mem_cpy(dj.dir, vn, 11); /* Change the volume label name */
marcozecchini	0:9fca2b23d0ba	3996	tm = GET_FATTIME();
marcozecchini	0:9fca2b23d0ba	3997	ST_DWORD(dj.dir + DIR_WrtTime, tm);
marcozecchini	0:9fca2b23d0ba	3998	} else {
marcozecchini	0:9fca2b23d0ba	3999	dj.dir[0] = DDEM; /* Remove the volume label */
marcozecchini	0:9fca2b23d0ba	4000	}
marcozecchini	0:9fca2b23d0ba	4001	dj.fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	4002	res = sync_fs(dj.fs);
marcozecchini	0:9fca2b23d0ba	4003	} else { /* No volume label is found or error */
marcozecchini	0:9fca2b23d0ba	4004	if (res == FR_NO_FILE) {
marcozecchini	0:9fca2b23d0ba	4005	res = FR_OK;
marcozecchini	0:9fca2b23d0ba	4006	if (vn[0]) { /* Create volume label as new */
marcozecchini	0:9fca2b23d0ba	4007	res = dir_alloc(&dj, 1); /* Allocate an entry for volume label */
marcozecchini	0:9fca2b23d0ba	4008	if (res == FR_OK) {
marcozecchini	0:9fca2b23d0ba	4009	mem_set(dj.dir, 0, SZ_DIRE); /* Set volume label */
marcozecchini	0:9fca2b23d0ba	4010	mem_cpy(dj.dir, vn, 11);
marcozecchini	0:9fca2b23d0ba	4011	dj.dir[DIR_Attr] = AM_VOL;
marcozecchini	0:9fca2b23d0ba	4012	tm = GET_FATTIME();
marcozecchini	0:9fca2b23d0ba	4013	ST_DWORD(dj.dir + DIR_WrtTime, tm);
marcozecchini	0:9fca2b23d0ba	4014	dj.fs->wflag = 1;
marcozecchini	0:9fca2b23d0ba	4015	res = sync_fs(dj.fs);
marcozecchini	0:9fca2b23d0ba	4016	}
marcozecchini	0:9fca2b23d0ba	4017	}
marcozecchini	0:9fca2b23d0ba	4018	}
marcozecchini	0:9fca2b23d0ba	4019	}
marcozecchini	0:9fca2b23d0ba	4020	}
marcozecchini	0:9fca2b23d0ba	4021
marcozecchini	0:9fca2b23d0ba	4022	LEAVE_FF(dj.fs, res);
marcozecchini	0:9fca2b23d0ba	4023	}
marcozecchini	0:9fca2b23d0ba	4024
marcozecchini	0:9fca2b23d0ba	4025	#endif /* !_FS_READONLY */
marcozecchini	0:9fca2b23d0ba	4026	#endif /* _USE_LABEL */
marcozecchini	0:9fca2b23d0ba	4027
marcozecchini	0:9fca2b23d0ba	4028
marcozecchini	0:9fca2b23d0ba	4029
marcozecchini	0:9fca2b23d0ba	4030	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4031	/* Forward data to the stream directly (available on only tiny cfg) */
marcozecchini	0:9fca2b23d0ba	4032	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4033	#if _USE_FORWARD && _FS_TINY
marcozecchini	0:9fca2b23d0ba	4034
marcozecchini	0:9fca2b23d0ba	4035	FRESULT f_forward (
marcozecchini	0:9fca2b23d0ba	4036	FIL* fp, /* Pointer to the file object */
marcozecchini	0:9fca2b23d0ba	4037	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
marcozecchini	0:9fca2b23d0ba	4038	UINT btf, /* Number of bytes to forward */
marcozecchini	0:9fca2b23d0ba	4039	UINT* bf /* Pointer to number of bytes forwarded */
marcozecchini	0:9fca2b23d0ba	4040	)
marcozecchini	0:9fca2b23d0ba	4041	{
marcozecchini	0:9fca2b23d0ba	4042	FRESULT res;
marcozecchini	0:9fca2b23d0ba	4043	DWORD remain, clst, sect;
marcozecchini	0:9fca2b23d0ba	4044	UINT rcnt;
marcozecchini	0:9fca2b23d0ba	4045	BYTE csect;
marcozecchini	0:9fca2b23d0ba	4046
marcozecchini	0:9fca2b23d0ba	4047
marcozecchini	0:9fca2b23d0ba	4048	bf = 0; / Clear transfer byte counter */
marcozecchini	0:9fca2b23d0ba	4049
marcozecchini	0:9fca2b23d0ba	4050	res = validate(fp); /* Check validity of the object */
marcozecchini	0:9fca2b23d0ba	4051	if (res != FR_OK) LEAVE_FF(fp->fs, res);
marcozecchini	0:9fca2b23d0ba	4052	if (fp->err) /* Check error */
marcozecchini	0:9fca2b23d0ba	4053	LEAVE_FF(fp->fs, (FRESULT)fp->err);
marcozecchini	0:9fca2b23d0ba	4054	if (!(fp->flag & FA_READ)) /* Check access mode */
marcozecchini	0:9fca2b23d0ba	4055	LEAVE_FF(fp->fs, FR_DENIED);
marcozecchini	0:9fca2b23d0ba	4056
marcozecchini	0:9fca2b23d0ba	4057	remain = fp->fsize - fp->fptr;
marcozecchini	0:9fca2b23d0ba	4058	if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */
marcozecchini	0:9fca2b23d0ba	4059
marcozecchini	0:9fca2b23d0ba	4060	for ( ; btf && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
marcozecchini	0:9fca2b23d0ba	4061	fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {
marcozecchini	0:9fca2b23d0ba	4062	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
marcozecchini	0:9fca2b23d0ba	4063	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
marcozecchini	0:9fca2b23d0ba	4064	if (!csect) { /* On the cluster boundary? */
marcozecchini	0:9fca2b23d0ba	4065	clst = (fp->fptr == 0) ? /* On the top of the file? */
marcozecchini	0:9fca2b23d0ba	4066	fp->sclust : get_fat(fp->fs, fp->clust);
marcozecchini	0:9fca2b23d0ba	4067	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
marcozecchini	0:9fca2b23d0ba	4068	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	4069	fp->clust = clst; /* Update current cluster */
marcozecchini	0:9fca2b23d0ba	4070	}
marcozecchini	0:9fca2b23d0ba	4071	}
marcozecchini	0:9fca2b23d0ba	4072	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
marcozecchini	0:9fca2b23d0ba	4073	if (!sect) ABORT(fp->fs, FR_INT_ERR);
marcozecchini	0:9fca2b23d0ba	4074	sect += csect;
marcozecchini	0:9fca2b23d0ba	4075	if (move_window(fp->fs, sect) != FR_OK) /* Move sector window */
marcozecchini	0:9fca2b23d0ba	4076	ABORT(fp->fs, FR_DISK_ERR);
marcozecchini	0:9fca2b23d0ba	4077	fp->dsect = sect;
marcozecchini	0:9fca2b23d0ba	4078	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
marcozecchini	0:9fca2b23d0ba	4079	if (rcnt > btf) rcnt = btf;
marcozecchini	0:9fca2b23d0ba	4080	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
marcozecchini	0:9fca2b23d0ba	4081	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
marcozecchini	0:9fca2b23d0ba	4082	}
marcozecchini	0:9fca2b23d0ba	4083
marcozecchini	0:9fca2b23d0ba	4084	LEAVE_FF(fp->fs, FR_OK);
marcozecchini	0:9fca2b23d0ba	4085	}
marcozecchini	0:9fca2b23d0ba	4086	#endif /* _USE_FORWARD */
marcozecchini	0:9fca2b23d0ba	4087
marcozecchini	0:9fca2b23d0ba	4088
marcozecchini	0:9fca2b23d0ba	4089
marcozecchini	0:9fca2b23d0ba	4090	#if _USE_MKFS && !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	4091	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4092	/* Create file system on the logical drive */
marcozecchini	0:9fca2b23d0ba	4093	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4094	#define N_ROOTDIR 512 /* Number of root directory entries for FAT12/16 */
marcozecchini	0:9fca2b23d0ba	4095	#define N_FATS 1 /* Number of FATs (1 or 2) */
marcozecchini	0:9fca2b23d0ba	4096
marcozecchini	0:9fca2b23d0ba	4097
marcozecchini	0:9fca2b23d0ba	4098	FRESULT f_mkfs (
marcozecchini	0:9fca2b23d0ba	4099	const TCHAR* path, /* Logical drive number */
marcozecchini	0:9fca2b23d0ba	4100	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
marcozecchini	0:9fca2b23d0ba	4101	UINT au /* Size of allocation unit in unit of byte or sector */
marcozecchini	0:9fca2b23d0ba	4102	)
marcozecchini	0:9fca2b23d0ba	4103	{
marcozecchini	0:9fca2b23d0ba	4104	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
marcozecchini	0:9fca2b23d0ba	4105	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
marcozecchini	0:9fca2b23d0ba	4106	int vol;
marcozecchini	0:9fca2b23d0ba	4107	BYTE fmt, md, sys, *tbl, pdrv, part;
marcozecchini	0:9fca2b23d0ba	4108	DWORD n_clst, vs, n, wsect;
marcozecchini	0:9fca2b23d0ba	4109	UINT i;
marcozecchini	0:9fca2b23d0ba	4110	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
marcozecchini	0:9fca2b23d0ba	4111	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
marcozecchini	0:9fca2b23d0ba	4112	FATFS *fs;
marcozecchini	0:9fca2b23d0ba	4113	DSTATUS stat;
marcozecchini	0:9fca2b23d0ba	4114	#if _USE_TRIM
marcozecchini	0:9fca2b23d0ba	4115	DWORD eb[2];
marcozecchini	0:9fca2b23d0ba	4116	#endif
marcozecchini	0:9fca2b23d0ba	4117
marcozecchini	0:9fca2b23d0ba	4118
marcozecchini	0:9fca2b23d0ba	4119	/* Check mounted drive and clear work area */
marcozecchini	0:9fca2b23d0ba	4120	if (sfd > 1) return FR_INVALID_PARAMETER;
marcozecchini	0:9fca2b23d0ba	4121	vol = get_ldnumber(&path);
marcozecchini	0:9fca2b23d0ba	4122	if (vol < 0) return FR_INVALID_DRIVE;
marcozecchini	0:9fca2b23d0ba	4123	fs = FatFs[vol];
marcozecchini	0:9fca2b23d0ba	4124	if (!fs) return FR_NOT_ENABLED;
marcozecchini	0:9fca2b23d0ba	4125	fs->fs_type = 0;
marcozecchini	0:9fca2b23d0ba	4126	pdrv = LD2PD(vol); /* Physical drive */
marcozecchini	0:9fca2b23d0ba	4127	part = LD2PT(vol); /* Partition (0:auto detect, 1-4:get from partition table)*/
marcozecchini	0:9fca2b23d0ba	4128
marcozecchini	0:9fca2b23d0ba	4129	/* Get disk statics */
marcozecchini	0:9fca2b23d0ba	4130	stat = disk_initialize(pdrv);
marcozecchini	0:9fca2b23d0ba	4131	if (stat & STA_NOINIT) return FR_NOT_READY;
marcozecchini	0:9fca2b23d0ba	4132	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
marcozecchini	0:9fca2b23d0ba	4133	#if _MAX_SS != _MIN_SS /* Get disk sector size */
marcozecchini	0:9fca2b23d0ba	4134	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS \|\| SS(fs) < _MIN_SS)
marcozecchini	0:9fca2b23d0ba	4135	return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	4136	#endif
marcozecchini	0:9fca2b23d0ba	4137	#if _FS_HEAPBUF
marcozecchini	0:9fca2b23d0ba	4138	if (!fs->win) {
marcozecchini	0:9fca2b23d0ba	4139	fs->win = (BYTE)ff_memalloc(SS(fs)); / Allocate buffer to back window if necessary */
marcozecchini	0:9fca2b23d0ba	4140	if (!fs->win)
marcozecchini	0:9fca2b23d0ba	4141	return FR_NOT_ENOUGH_CORE;
marcozecchini	0:9fca2b23d0ba	4142	}
marcozecchini	0:9fca2b23d0ba	4143	#endif
marcozecchini	0:9fca2b23d0ba	4144	if (_MULTI_PARTITION && part) {
marcozecchini	0:9fca2b23d0ba	4145	/* Get partition information from partition table in the MBR */
marcozecchini	0:9fca2b23d0ba	4146	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	4147	if (LD_WORD(fs->win + BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
marcozecchini	0:9fca2b23d0ba	4148	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
marcozecchini	0:9fca2b23d0ba	4149	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
marcozecchini	0:9fca2b23d0ba	4150	b_vol = LD_DWORD(tbl + 8); /* Volume start sector */
marcozecchini	0:9fca2b23d0ba	4151	n_vol = LD_DWORD(tbl + 12); /* Volume size */
marcozecchini	0:9fca2b23d0ba	4152	} else {
marcozecchini	0:9fca2b23d0ba	4153	/* Create a partition in this function */
marcozecchini	0:9fca2b23d0ba	4154	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < ((sfd) ? 64 : 128))
marcozecchini	0:9fca2b23d0ba	4155	return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	4156	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
marcozecchini	0:9fca2b23d0ba	4157	n_vol -= b_vol; /* Volume size */
marcozecchini	0:9fca2b23d0ba	4158	}
marcozecchini	0:9fca2b23d0ba	4159
marcozecchini	0:9fca2b23d0ba	4160	if (au & (au - 1)) au = 0;
marcozecchini	0:9fca2b23d0ba	4161	if (!au) { /* AU auto selection */
marcozecchini	0:9fca2b23d0ba	4162	vs = n_vol / (2000 / (SS(fs) / 512));
marcozecchini	0:9fca2b23d0ba	4163	for (i = 0; vs < vst[i]; i++) ;
marcozecchini	0:9fca2b23d0ba	4164	au = cst[i];
marcozecchini	0:9fca2b23d0ba	4165	}
marcozecchini	0:9fca2b23d0ba	4166	if (au >= _MIN_SS) au /= SS(fs); /* Number of sectors per cluster */
marcozecchini	0:9fca2b23d0ba	4167	if (!au) au = 1;
marcozecchini	0:9fca2b23d0ba	4168	if (au > 128) au = 128;
marcozecchini	0:9fca2b23d0ba	4169
marcozecchini	0:9fca2b23d0ba	4170	/* Pre-compute number of clusters and FAT sub-type */
marcozecchini	0:9fca2b23d0ba	4171	n_clst = n_vol / au;
marcozecchini	0:9fca2b23d0ba	4172	fmt = FS_FAT12;
marcozecchini	0:9fca2b23d0ba	4173	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
marcozecchini	0:9fca2b23d0ba	4174	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
marcozecchini	0:9fca2b23d0ba	4175
marcozecchini	0:9fca2b23d0ba	4176	/* Determine offset and size of FAT structure */
marcozecchini	0:9fca2b23d0ba	4177	if (fmt == FS_FAT32) {
marcozecchini	0:9fca2b23d0ba	4178	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
marcozecchini	0:9fca2b23d0ba	4179	n_rsv = 32;
marcozecchini	0:9fca2b23d0ba	4180	n_dir = 0;
marcozecchini	0:9fca2b23d0ba	4181	} else {
marcozecchini	0:9fca2b23d0ba	4182	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
marcozecchini	0:9fca2b23d0ba	4183	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
marcozecchini	0:9fca2b23d0ba	4184	n_rsv = 1;
marcozecchini	0:9fca2b23d0ba	4185	n_dir = (DWORD)N_ROOTDIR * SZ_DIRE / SS(fs);
marcozecchini	0:9fca2b23d0ba	4186	}
marcozecchini	0:9fca2b23d0ba	4187	b_fat = b_vol + n_rsv; /* FAT area start sector */
marcozecchini	0:9fca2b23d0ba	4188	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
marcozecchini	0:9fca2b23d0ba	4189	b_data = b_dir + n_dir; /* Data area start sector */
marcozecchini	0:9fca2b23d0ba	4190	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
marcozecchini	0:9fca2b23d0ba	4191
marcozecchini	0:9fca2b23d0ba	4192	/* Align data start sector to erase block boundary (for flash memory media) */
marcozecchini	0:9fca2b23d0ba	4193	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
marcozecchini	0:9fca2b23d0ba	4194	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
marcozecchini	0:9fca2b23d0ba	4195	n = (n - b_data) / N_FATS;
marcozecchini	0:9fca2b23d0ba	4196	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
marcozecchini	0:9fca2b23d0ba	4197	n_rsv += n;
marcozecchini	0:9fca2b23d0ba	4198	b_fat += n;
marcozecchini	0:9fca2b23d0ba	4199	} else { /* FAT12/16: Expand FAT size */
marcozecchini	0:9fca2b23d0ba	4200	n_fat += n;
marcozecchini	0:9fca2b23d0ba	4201	}
marcozecchini	0:9fca2b23d0ba	4202
marcozecchini	0:9fca2b23d0ba	4203	/* Determine number of clusters and final check of validity of the FAT sub-type */
marcozecchini	0:9fca2b23d0ba	4204	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
marcozecchini	0:9fca2b23d0ba	4205	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
marcozecchini	0:9fca2b23d0ba	4206	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
marcozecchini	0:9fca2b23d0ba	4207	return FR_MKFS_ABORTED;
marcozecchini	0:9fca2b23d0ba	4208
marcozecchini	0:9fca2b23d0ba	4209	/* Determine system ID in the partition table */
marcozecchini	0:9fca2b23d0ba	4210	if (fmt == FS_FAT32) {
marcozecchini	0:9fca2b23d0ba	4211	sys = 0x0C; /* FAT32X */
marcozecchini	0:9fca2b23d0ba	4212	} else {
marcozecchini	0:9fca2b23d0ba	4213	if (fmt == FS_FAT12 && n_vol < 0x10000) {
marcozecchini	0:9fca2b23d0ba	4214	sys = 0x01; /* FAT12(<65536) */
marcozecchini	0:9fca2b23d0ba	4215	} else {
marcozecchini	0:9fca2b23d0ba	4216	sys = (n_vol < 0x10000) ? 0x04 : 0x06; /* FAT16(<65536) : FAT12/16(>=65536) */
marcozecchini	0:9fca2b23d0ba	4217	}
marcozecchini	0:9fca2b23d0ba	4218	}
marcozecchini	0:9fca2b23d0ba	4219
marcozecchini	0:9fca2b23d0ba	4220	if (_MULTI_PARTITION && part) {
marcozecchini	0:9fca2b23d0ba	4221	/* Update system ID in the partition table */
marcozecchini	0:9fca2b23d0ba	4222	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
marcozecchini	0:9fca2b23d0ba	4223	tbl[4] = sys;
marcozecchini	0:9fca2b23d0ba	4224	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to teh MBR */
marcozecchini	0:9fca2b23d0ba	4225	return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	4226	md = 0xF8;
marcozecchini	0:9fca2b23d0ba	4227	} else {
marcozecchini	0:9fca2b23d0ba	4228	if (sfd) { /* No partition table (SFD) */
marcozecchini	0:9fca2b23d0ba	4229	md = 0xF0;
marcozecchini	0:9fca2b23d0ba	4230	} else { /* Create partition table (FDISK) */
marcozecchini	0:9fca2b23d0ba	4231	mem_set(fs->win, 0, SS(fs));
marcozecchini	0:9fca2b23d0ba	4232	tbl = fs->win + MBR_Table; /* Create partition table for single partition in the drive */
marcozecchini	0:9fca2b23d0ba	4233	tbl[1] = 1; /* Partition start head */
marcozecchini	0:9fca2b23d0ba	4234	tbl[2] = 1; /* Partition start sector */
marcozecchini	0:9fca2b23d0ba	4235	tbl[3] = 0; /* Partition start cylinder */
marcozecchini	0:9fca2b23d0ba	4236	tbl[4] = sys; /* System type */
marcozecchini	0:9fca2b23d0ba	4237	tbl[5] = 254; /* Partition end head */
marcozecchini	0:9fca2b23d0ba	4238	n = (b_vol + n_vol) / 63 / 255;
marcozecchini	0:9fca2b23d0ba	4239	tbl[6] = (BYTE)(n >> 2 \| 63); /* Partition end sector */
marcozecchini	0:9fca2b23d0ba	4240	tbl[7] = (BYTE)n; /* End cylinder */
marcozecchini	0:9fca2b23d0ba	4241	ST_DWORD(tbl + 8, 63); /* Partition start in LBA */
marcozecchini	0:9fca2b23d0ba	4242	ST_DWORD(tbl + 12, n_vol); /* Partition size in LBA */
marcozecchini	0:9fca2b23d0ba	4243	ST_WORD(fs->win + BS_55AA, 0xAA55); /* MBR signature */
marcozecchini	0:9fca2b23d0ba	4244	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR */
marcozecchini	0:9fca2b23d0ba	4245	return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	4246	md = 0xF8;
marcozecchini	0:9fca2b23d0ba	4247	}
marcozecchini	0:9fca2b23d0ba	4248	}
marcozecchini	0:9fca2b23d0ba	4249
marcozecchini	0:9fca2b23d0ba	4250	/* Create BPB in the VBR */
marcozecchini	0:9fca2b23d0ba	4251	tbl = fs->win; /* Clear sector */
marcozecchini	0:9fca2b23d0ba	4252	mem_set(tbl, 0, SS(fs));
marcozecchini	0:9fca2b23d0ba	4253	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
marcozecchini	0:9fca2b23d0ba	4254	i = SS(fs); /* Sector size */
marcozecchini	0:9fca2b23d0ba	4255	ST_WORD(tbl + BPB_BytsPerSec, i);
marcozecchini	0:9fca2b23d0ba	4256	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
marcozecchini	0:9fca2b23d0ba	4257	ST_WORD(tbl + BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
marcozecchini	0:9fca2b23d0ba	4258	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
marcozecchini	0:9fca2b23d0ba	4259	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of root directory entries */
marcozecchini	0:9fca2b23d0ba	4260	ST_WORD(tbl + BPB_RootEntCnt, i);
marcozecchini	0:9fca2b23d0ba	4261	if (n_vol < 0x10000) { /* Number of total sectors */
marcozecchini	0:9fca2b23d0ba	4262	ST_WORD(tbl + BPB_TotSec16, n_vol);
marcozecchini	0:9fca2b23d0ba	4263	} else {
marcozecchini	0:9fca2b23d0ba	4264	ST_DWORD(tbl + BPB_TotSec32, n_vol);
marcozecchini	0:9fca2b23d0ba	4265	}
marcozecchini	0:9fca2b23d0ba	4266	tbl[BPB_Media] = md; /* Media descriptor */
marcozecchini	0:9fca2b23d0ba	4267	ST_WORD(tbl + BPB_SecPerTrk, 63); /* Number of sectors per track */
marcozecchini	0:9fca2b23d0ba	4268	ST_WORD(tbl + BPB_NumHeads, 255); /* Number of heads */
marcozecchini	0:9fca2b23d0ba	4269	ST_DWORD(tbl + BPB_HiddSec, b_vol); /* Hidden sectors */
marcozecchini	0:9fca2b23d0ba	4270	n = GET_FATTIME(); /* Use current time as VSN */
marcozecchini	0:9fca2b23d0ba	4271	if (fmt == FS_FAT32) {
marcozecchini	0:9fca2b23d0ba	4272	ST_DWORD(tbl + BS_VolID32, n); /* VSN */
marcozecchini	0:9fca2b23d0ba	4273	ST_DWORD(tbl + BPB_FATSz32, n_fat); /* Number of sectors per FAT */
marcozecchini	0:9fca2b23d0ba	4274	ST_DWORD(tbl + BPB_RootClus, 2); /* Root directory start cluster (2) */
marcozecchini	0:9fca2b23d0ba	4275	ST_WORD(tbl + BPB_FSInfo, 1); /* FSINFO record offset (VBR + 1) */
marcozecchini	0:9fca2b23d0ba	4276	ST_WORD(tbl + BPB_BkBootSec, 6); /* Backup boot record offset (VBR + 6) */
marcozecchini	0:9fca2b23d0ba	4277	tbl[BS_DrvNum32] = 0x80; /* Drive number */
marcozecchini	0:9fca2b23d0ba	4278	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
marcozecchini	0:9fca2b23d0ba	4279	mem_cpy(tbl + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
marcozecchini	0:9fca2b23d0ba	4280	} else {
marcozecchini	0:9fca2b23d0ba	4281	ST_DWORD(tbl + BS_VolID, n); /* VSN */
marcozecchini	0:9fca2b23d0ba	4282	ST_WORD(tbl + BPB_FATSz16, n_fat); /* Number of sectors per FAT */
marcozecchini	0:9fca2b23d0ba	4283	tbl[BS_DrvNum] = 0x80; /* Drive number */
marcozecchini	0:9fca2b23d0ba	4284	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
marcozecchini	0:9fca2b23d0ba	4285	mem_cpy(tbl + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
marcozecchini	0:9fca2b23d0ba	4286	}
marcozecchini	0:9fca2b23d0ba	4287	ST_WORD(tbl + BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
marcozecchini	0:9fca2b23d0ba	4288	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
marcozecchini	0:9fca2b23d0ba	4289	return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	4290	if (fmt == FS_FAT32) /* Write it to the backup VBR if needed (VBR + 6) */
marcozecchini	0:9fca2b23d0ba	4291	disk_write(pdrv, tbl, b_vol + 6, 1);
marcozecchini	0:9fca2b23d0ba	4292
marcozecchini	0:9fca2b23d0ba	4293	/* Initialize FAT area */
marcozecchini	0:9fca2b23d0ba	4294	wsect = b_fat;
marcozecchini	0:9fca2b23d0ba	4295	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
marcozecchini	0:9fca2b23d0ba	4296	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
marcozecchini	0:9fca2b23d0ba	4297	n = md; /* Media descriptor byte */
marcozecchini	0:9fca2b23d0ba	4298	if (fmt != FS_FAT32) {
marcozecchini	0:9fca2b23d0ba	4299	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
marcozecchini	0:9fca2b23d0ba	4300	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT12/16) */
marcozecchini	0:9fca2b23d0ba	4301	} else {
marcozecchini	0:9fca2b23d0ba	4302	n \|= 0xFFFFFF00;
marcozecchini	0:9fca2b23d0ba	4303	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT32) */
marcozecchini	0:9fca2b23d0ba	4304	ST_DWORD(tbl + 4, 0xFFFFFFFF);
marcozecchini	0:9fca2b23d0ba	4305	ST_DWORD(tbl + 8, 0x0FFFFFFF); /* Reserve cluster #2 for root directory */
marcozecchini	0:9fca2b23d0ba	4306	}
marcozecchini	0:9fca2b23d0ba	4307	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
marcozecchini	0:9fca2b23d0ba	4308	return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	4309	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
marcozecchini	0:9fca2b23d0ba	4310	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
marcozecchini	0:9fca2b23d0ba	4311	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
marcozecchini	0:9fca2b23d0ba	4312	return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	4313	}
marcozecchini	0:9fca2b23d0ba	4314	}
marcozecchini	0:9fca2b23d0ba	4315
marcozecchini	0:9fca2b23d0ba	4316	/* Initialize root directory */
marcozecchini	0:9fca2b23d0ba	4317	i = (fmt == FS_FAT32) ? au : (UINT)n_dir;
marcozecchini	0:9fca2b23d0ba	4318	do {
marcozecchini	0:9fca2b23d0ba	4319	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
marcozecchini	0:9fca2b23d0ba	4320	return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	4321	} while (--i);
marcozecchini	0:9fca2b23d0ba	4322
marcozecchini	0:9fca2b23d0ba	4323	#if _USE_TRIM /* Erase data area if needed */
marcozecchini	0:9fca2b23d0ba	4324	{
marcozecchini	0:9fca2b23d0ba	4325	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
marcozecchini	0:9fca2b23d0ba	4326	disk_ioctl(pdrv, CTRL_TRIM, eb);
marcozecchini	0:9fca2b23d0ba	4327	}
marcozecchini	0:9fca2b23d0ba	4328	#endif
marcozecchini	0:9fca2b23d0ba	4329
marcozecchini	0:9fca2b23d0ba	4330	/* Create FSINFO if needed */
marcozecchini	0:9fca2b23d0ba	4331	if (fmt == FS_FAT32) {
marcozecchini	0:9fca2b23d0ba	4332	ST_DWORD(tbl + FSI_LeadSig, 0x41615252);
marcozecchini	0:9fca2b23d0ba	4333	ST_DWORD(tbl + FSI_StrucSig, 0x61417272);
marcozecchini	0:9fca2b23d0ba	4334	ST_DWORD(tbl + FSI_Free_Count, n_clst - 1); /* Number of free clusters */
marcozecchini	0:9fca2b23d0ba	4335	ST_DWORD(tbl + FSI_Nxt_Free, 2); /* Last allocated cluster# */
marcozecchini	0:9fca2b23d0ba	4336	ST_WORD(tbl + BS_55AA, 0xAA55);
marcozecchini	0:9fca2b23d0ba	4337	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR + 1) */
marcozecchini	0:9fca2b23d0ba	4338	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR + 7) */
marcozecchini	0:9fca2b23d0ba	4339	}
marcozecchini	0:9fca2b23d0ba	4340
marcozecchini	0:9fca2b23d0ba	4341	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	4342	}
marcozecchini	0:9fca2b23d0ba	4343
marcozecchini	0:9fca2b23d0ba	4344
marcozecchini	0:9fca2b23d0ba	4345
marcozecchini	0:9fca2b23d0ba	4346	#if _MULTI_PARTITION
marcozecchini	0:9fca2b23d0ba	4347	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4348	/* Create partition table on the physical drive */
marcozecchini	0:9fca2b23d0ba	4349	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4350
marcozecchini	0:9fca2b23d0ba	4351	FRESULT f_fdisk (
marcozecchini	0:9fca2b23d0ba	4352	BYTE pdrv, /* Physical drive number */
marcozecchini	0:9fca2b23d0ba	4353	const DWORD szt[], /* Pointer to the size table for each partitions */
marcozecchini	0:9fca2b23d0ba	4354	void* work /* Pointer to the working buffer */
marcozecchini	0:9fca2b23d0ba	4355	)
marcozecchini	0:9fca2b23d0ba	4356	{
marcozecchini	0:9fca2b23d0ba	4357	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
marcozecchini	0:9fca2b23d0ba	4358	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
marcozecchini	0:9fca2b23d0ba	4359	DSTATUS stat;
marcozecchini	0:9fca2b23d0ba	4360	DWORD sz_disk, sz_part, s_part;
marcozecchini	0:9fca2b23d0ba	4361
marcozecchini	0:9fca2b23d0ba	4362
marcozecchini	0:9fca2b23d0ba	4363	stat = disk_initialize(pdrv);
marcozecchini	0:9fca2b23d0ba	4364	if (stat & STA_NOINIT) return FR_NOT_READY;
marcozecchini	0:9fca2b23d0ba	4365	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
marcozecchini	0:9fca2b23d0ba	4366	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
marcozecchini	0:9fca2b23d0ba	4367
marcozecchini	0:9fca2b23d0ba	4368	/* Determine CHS in the table regardless of the drive geometry */
marcozecchini	0:9fca2b23d0ba	4369	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
marcozecchini	0:9fca2b23d0ba	4370	if (n == 256) n--;
marcozecchini	0:9fca2b23d0ba	4371	e_hd = n - 1;
marcozecchini	0:9fca2b23d0ba	4372	sz_cyl = 63 * n;
marcozecchini	0:9fca2b23d0ba	4373	tot_cyl = sz_disk / sz_cyl;
marcozecchini	0:9fca2b23d0ba	4374
marcozecchini	0:9fca2b23d0ba	4375	/* Create partition table */
marcozecchini	0:9fca2b23d0ba	4376	mem_set(buf, 0, _MAX_SS);
marcozecchini	0:9fca2b23d0ba	4377	p = buf + MBR_Table; b_cyl = 0;
marcozecchini	0:9fca2b23d0ba	4378	for (i = 0; i < 4; i++, p += SZ_PTE) {
marcozecchini	0:9fca2b23d0ba	4379	p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
marcozecchini	0:9fca2b23d0ba	4380	if (!p_cyl) continue;
marcozecchini	0:9fca2b23d0ba	4381	s_part = (DWORD)sz_cyl * b_cyl;
marcozecchini	0:9fca2b23d0ba	4382	sz_part = (DWORD)sz_cyl * p_cyl;
marcozecchini	0:9fca2b23d0ba	4383	if (i == 0) { /* Exclude first track of cylinder 0 */
marcozecchini	0:9fca2b23d0ba	4384	s_hd = 1;
marcozecchini	0:9fca2b23d0ba	4385	s_part += 63; sz_part -= 63;
marcozecchini	0:9fca2b23d0ba	4386	} else {
marcozecchini	0:9fca2b23d0ba	4387	s_hd = 0;
marcozecchini	0:9fca2b23d0ba	4388	}
marcozecchini	0:9fca2b23d0ba	4389	e_cyl = b_cyl + p_cyl - 1;
marcozecchini	0:9fca2b23d0ba	4390	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
marcozecchini	0:9fca2b23d0ba	4391
marcozecchini	0:9fca2b23d0ba	4392	/* Set partition table */
marcozecchini	0:9fca2b23d0ba	4393	p[1] = s_hd; /* Start head */
marcozecchini	0:9fca2b23d0ba	4394	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
marcozecchini	0:9fca2b23d0ba	4395	p[3] = (BYTE)b_cyl; /* Start cylinder */
marcozecchini	0:9fca2b23d0ba	4396	p[4] = 0x06; /* System type (temporary setting) */
marcozecchini	0:9fca2b23d0ba	4397	p[5] = e_hd; /* End head */
marcozecchini	0:9fca2b23d0ba	4398	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
marcozecchini	0:9fca2b23d0ba	4399	p[7] = (BYTE)e_cyl; /* End cylinder */
marcozecchini	0:9fca2b23d0ba	4400	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
marcozecchini	0:9fca2b23d0ba	4401	ST_DWORD(p + 12, sz_part); /* Partition size */
marcozecchini	0:9fca2b23d0ba	4402
marcozecchini	0:9fca2b23d0ba	4403	/* Next partition */
marcozecchini	0:9fca2b23d0ba	4404	b_cyl += p_cyl;
marcozecchini	0:9fca2b23d0ba	4405	}
marcozecchini	0:9fca2b23d0ba	4406	ST_WORD(p, 0xAA55);
marcozecchini	0:9fca2b23d0ba	4407
marcozecchini	0:9fca2b23d0ba	4408	/* Write it to the MBR */
marcozecchini	0:9fca2b23d0ba	4409	return (disk_write(pdrv, buf, 0, 1) != RES_OK \|\| disk_ioctl(pdrv, CTRL_SYNC, 0) != RES_OK) ? FR_DISK_ERR : FR_OK;
marcozecchini	0:9fca2b23d0ba	4410	}
marcozecchini	0:9fca2b23d0ba	4411
marcozecchini	0:9fca2b23d0ba	4412
marcozecchini	0:9fca2b23d0ba	4413	#endif /* _MULTI_PARTITION */
marcozecchini	0:9fca2b23d0ba	4414	#endif /* _USE_MKFS && !_FS_READONLY */
marcozecchini	0:9fca2b23d0ba	4415
marcozecchini	0:9fca2b23d0ba	4416
marcozecchini	0:9fca2b23d0ba	4417
marcozecchini	0:9fca2b23d0ba	4418
marcozecchini	0:9fca2b23d0ba	4419	#if _USE_STRFUNC
marcozecchini	0:9fca2b23d0ba	4420	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4421	/* Get a string from the file */
marcozecchini	0:9fca2b23d0ba	4422	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4423
marcozecchini	0:9fca2b23d0ba	4424	TCHAR* f_gets (
marcozecchini	0:9fca2b23d0ba	4425	TCHAR* buff, /* Pointer to the string buffer to read */
marcozecchini	0:9fca2b23d0ba	4426	int len, /* Size of string buffer (characters) */
marcozecchini	0:9fca2b23d0ba	4427	FIL* fp /* Pointer to the file object */
marcozecchini	0:9fca2b23d0ba	4428	)
marcozecchini	0:9fca2b23d0ba	4429	{
marcozecchini	0:9fca2b23d0ba	4430	int n = 0;
marcozecchini	0:9fca2b23d0ba	4431	TCHAR c, *p = buff;
marcozecchini	0:9fca2b23d0ba	4432	BYTE s[2];
marcozecchini	0:9fca2b23d0ba	4433	UINT rc;
marcozecchini	0:9fca2b23d0ba	4434
marcozecchini	0:9fca2b23d0ba	4435
marcozecchini	0:9fca2b23d0ba	4436	while (n < len - 1) { /* Read characters until buffer gets filled */
marcozecchini	0:9fca2b23d0ba	4437	#if _USE_LFN && _LFN_UNICODE
marcozecchini	0:9fca2b23d0ba	4438	#if _STRF_ENCODE == 3 /* Read a character in UTF-8 */
marcozecchini	0:9fca2b23d0ba	4439	f_read(fp, s, 1, &rc);
marcozecchini	0:9fca2b23d0ba	4440	if (rc != 1) break;
marcozecchini	0:9fca2b23d0ba	4441	c = s[0];
marcozecchini	0:9fca2b23d0ba	4442	if (c >= 0x80) {
marcozecchini	0:9fca2b23d0ba	4443	if (c < 0xC0) continue; /* Skip stray trailer */
marcozecchini	0:9fca2b23d0ba	4444	if (c < 0xE0) { /* Two-byte sequence */
marcozecchini	0:9fca2b23d0ba	4445	f_read(fp, s, 1, &rc);
marcozecchini	0:9fca2b23d0ba	4446	if (rc != 1) break;
marcozecchini	0:9fca2b23d0ba	4447	c = (c & 0x1F) << 6 \| (s[0] & 0x3F);
marcozecchini	0:9fca2b23d0ba	4448	if (c < 0x80) c = '?';
marcozecchini	0:9fca2b23d0ba	4449	} else {
marcozecchini	0:9fca2b23d0ba	4450	if (c < 0xF0) { /* Three-byte sequence */
marcozecchini	0:9fca2b23d0ba	4451	f_read(fp, s, 2, &rc);
marcozecchini	0:9fca2b23d0ba	4452	if (rc != 2) break;
marcozecchini	0:9fca2b23d0ba	4453	c = c << 12 \| (s[0] & 0x3F) << 6 \| (s[1] & 0x3F);
marcozecchini	0:9fca2b23d0ba	4454	if (c < 0x800) c = '?';
marcozecchini	0:9fca2b23d0ba	4455	} else { /* Reject four-byte sequence */
marcozecchini	0:9fca2b23d0ba	4456	c = '?';
marcozecchini	0:9fca2b23d0ba	4457	}
marcozecchini	0:9fca2b23d0ba	4458	}
marcozecchini	0:9fca2b23d0ba	4459	}
marcozecchini	0:9fca2b23d0ba	4460	#elif _STRF_ENCODE == 2 /* Read a character in UTF-16BE */
marcozecchini	0:9fca2b23d0ba	4461	f_read(fp, s, 2, &rc);
marcozecchini	0:9fca2b23d0ba	4462	if (rc != 2) break;
marcozecchini	0:9fca2b23d0ba	4463	c = s[1] + (s[0] << 8);
marcozecchini	0:9fca2b23d0ba	4464	#elif _STRF_ENCODE == 1 /* Read a character in UTF-16LE */
marcozecchini	0:9fca2b23d0ba	4465	f_read(fp, s, 2, &rc);
marcozecchini	0:9fca2b23d0ba	4466	if (rc != 2) break;
marcozecchini	0:9fca2b23d0ba	4467	c = s[0] + (s[1] << 8);
marcozecchini	0:9fca2b23d0ba	4468	#else /* Read a character in ANSI/OEM */
marcozecchini	0:9fca2b23d0ba	4469	f_read(fp, s, 1, &rc);
marcozecchini	0:9fca2b23d0ba	4470	if (rc != 1) break;
marcozecchini	0:9fca2b23d0ba	4471	c = s[0];
marcozecchini	0:9fca2b23d0ba	4472	if (IsDBCS1(c)) {
marcozecchini	0:9fca2b23d0ba	4473	f_read(fp, s, 1, &rc);
marcozecchini	0:9fca2b23d0ba	4474	if (rc != 1) break;
marcozecchini	0:9fca2b23d0ba	4475	c = (c << 8) + s[0];
marcozecchini	0:9fca2b23d0ba	4476	}
marcozecchini	0:9fca2b23d0ba	4477	c = ff_convert(c, 1); /* OEM -> Unicode */
marcozecchini	0:9fca2b23d0ba	4478	if (!c) c = '?';
marcozecchini	0:9fca2b23d0ba	4479	#endif
marcozecchini	0:9fca2b23d0ba	4480	#else /* Read a character without conversion */
marcozecchini	0:9fca2b23d0ba	4481	f_read(fp, s, 1, &rc);
marcozecchini	0:9fca2b23d0ba	4482	if (rc != 1) break;
marcozecchini	0:9fca2b23d0ba	4483	c = s[0];
marcozecchini	0:9fca2b23d0ba	4484	#endif
marcozecchini	0:9fca2b23d0ba	4485	if (_USE_STRFUNC == 2 && c == '\r') continue; /* Strip '\r' */
marcozecchini	0:9fca2b23d0ba	4486	*p++ = c;
marcozecchini	0:9fca2b23d0ba	4487	n++;
marcozecchini	0:9fca2b23d0ba	4488	if (c == '\n') break; /* Break on EOL */
marcozecchini	0:9fca2b23d0ba	4489	}
marcozecchini	0:9fca2b23d0ba	4490	*p = 0;
marcozecchini	0:9fca2b23d0ba	4491	return n ? buff : 0; /* When no data read (eof or error), return with error. */
marcozecchini	0:9fca2b23d0ba	4492	}
marcozecchini	0:9fca2b23d0ba	4493
marcozecchini	0:9fca2b23d0ba	4494
marcozecchini	0:9fca2b23d0ba	4495
marcozecchini	0:9fca2b23d0ba	4496
marcozecchini	0:9fca2b23d0ba	4497	#if !_FS_READONLY
marcozecchini	0:9fca2b23d0ba	4498	#include <stdarg.h>
marcozecchini	0:9fca2b23d0ba	4499	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4500	/* Put a character to the file */
marcozecchini	0:9fca2b23d0ba	4501	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4502
marcozecchini	0:9fca2b23d0ba	4503	typedef struct {
marcozecchini	0:9fca2b23d0ba	4504	FIL* fp;
marcozecchini	0:9fca2b23d0ba	4505	int idx, nchr;
marcozecchini	0:9fca2b23d0ba	4506	BYTE buf[64];
marcozecchini	0:9fca2b23d0ba	4507	} putbuff;
marcozecchini	0:9fca2b23d0ba	4508
marcozecchini	0:9fca2b23d0ba	4509
marcozecchini	0:9fca2b23d0ba	4510	static
marcozecchini	0:9fca2b23d0ba	4511	void putc_bfd (
marcozecchini	0:9fca2b23d0ba	4512	putbuff* pb,
marcozecchini	0:9fca2b23d0ba	4513	TCHAR c
marcozecchini	0:9fca2b23d0ba	4514	)
marcozecchini	0:9fca2b23d0ba	4515	{
marcozecchini	0:9fca2b23d0ba	4516	UINT bw;
marcozecchini	0:9fca2b23d0ba	4517	int i;
marcozecchini	0:9fca2b23d0ba	4518
marcozecchini	0:9fca2b23d0ba	4519
marcozecchini	0:9fca2b23d0ba	4520	if (_USE_STRFUNC == 2 && c == '\n') /* LF -> CRLF conversion */
marcozecchini	0:9fca2b23d0ba	4521	putc_bfd(pb, '\r');
marcozecchini	0:9fca2b23d0ba	4522
marcozecchini	0:9fca2b23d0ba	4523	i = pb->idx; /* Buffer write index (-1:error) */
marcozecchini	0:9fca2b23d0ba	4524	if (i < 0) return;
marcozecchini	0:9fca2b23d0ba	4525
marcozecchini	0:9fca2b23d0ba	4526	#if _USE_LFN && _LFN_UNICODE
marcozecchini	0:9fca2b23d0ba	4527	#if _STRF_ENCODE == 3 /* Write a character in UTF-8 */
marcozecchini	0:9fca2b23d0ba	4528	if (c < 0x80) { /* 7-bit */
marcozecchini	0:9fca2b23d0ba	4529	pb->buf[i++] = (BYTE)c;
marcozecchini	0:9fca2b23d0ba	4530	} else {
marcozecchini	0:9fca2b23d0ba	4531	if (c < 0x800) { /* 11-bit */
marcozecchini	0:9fca2b23d0ba	4532	pb->buf[i++] = (BYTE)(0xC0 \| c >> 6);
marcozecchini	0:9fca2b23d0ba	4533	} else { /* 16-bit */
marcozecchini	0:9fca2b23d0ba	4534	pb->buf[i++] = (BYTE)(0xE0 \| c >> 12);
marcozecchini	0:9fca2b23d0ba	4535	pb->buf[i++] = (BYTE)(0x80 \| (c >> 6 & 0x3F));
marcozecchini	0:9fca2b23d0ba	4536	}
marcozecchini	0:9fca2b23d0ba	4537	pb->buf[i++] = (BYTE)(0x80 \| (c & 0x3F));
marcozecchini	0:9fca2b23d0ba	4538	}
marcozecchini	0:9fca2b23d0ba	4539	#elif _STRF_ENCODE == 2 /* Write a character in UTF-16BE */
marcozecchini	0:9fca2b23d0ba	4540	pb->buf[i++] = (BYTE)(c >> 8);
marcozecchini	0:9fca2b23d0ba	4541	pb->buf[i++] = (BYTE)c;
marcozecchini	0:9fca2b23d0ba	4542	#elif _STRF_ENCODE == 1 /* Write a character in UTF-16LE */
marcozecchini	0:9fca2b23d0ba	4543	pb->buf[i++] = (BYTE)c;
marcozecchini	0:9fca2b23d0ba	4544	pb->buf[i++] = (BYTE)(c >> 8);
marcozecchini	0:9fca2b23d0ba	4545	#else /* Write a character in ANSI/OEM */
marcozecchini	0:9fca2b23d0ba	4546	c = ff_convert(c, 0); /* Unicode -> OEM */
marcozecchini	0:9fca2b23d0ba	4547	if (!c) c = '?';
marcozecchini	0:9fca2b23d0ba	4548	if (c >= 0x100)
marcozecchini	0:9fca2b23d0ba	4549	pb->buf[i++] = (BYTE)(c >> 8);
marcozecchini	0:9fca2b23d0ba	4550	pb->buf[i++] = (BYTE)c;
marcozecchini	0:9fca2b23d0ba	4551	#endif
marcozecchini	0:9fca2b23d0ba	4552	#else /* Write a character without conversion */
marcozecchini	0:9fca2b23d0ba	4553	pb->buf[i++] = (BYTE)c;
marcozecchini	0:9fca2b23d0ba	4554	#endif
marcozecchini	0:9fca2b23d0ba	4555
marcozecchini	0:9fca2b23d0ba	4556	if (i >= (int)(sizeof pb->buf) - 3) { /* Write buffered characters to the file */
marcozecchini	0:9fca2b23d0ba	4557	f_write(pb->fp, pb->buf, (UINT)i, &bw);
marcozecchini	0:9fca2b23d0ba	4558	i = (bw == (UINT)i) ? 0 : -1;
marcozecchini	0:9fca2b23d0ba	4559	}
marcozecchini	0:9fca2b23d0ba	4560	pb->idx = i;
marcozecchini	0:9fca2b23d0ba	4561	pb->nchr++;
marcozecchini	0:9fca2b23d0ba	4562	}
marcozecchini	0:9fca2b23d0ba	4563
marcozecchini	0:9fca2b23d0ba	4564
marcozecchini	0:9fca2b23d0ba	4565
marcozecchini	0:9fca2b23d0ba	4566	int f_putc (
marcozecchini	0:9fca2b23d0ba	4567	TCHAR c, /* A character to be output */
marcozecchini	0:9fca2b23d0ba	4568	FIL* fp /* Pointer to the file object */
marcozecchini	0:9fca2b23d0ba	4569	)
marcozecchini	0:9fca2b23d0ba	4570	{
marcozecchini	0:9fca2b23d0ba	4571	putbuff pb;
marcozecchini	0:9fca2b23d0ba	4572	UINT nw;
marcozecchini	0:9fca2b23d0ba	4573
marcozecchini	0:9fca2b23d0ba	4574
marcozecchini	0:9fca2b23d0ba	4575	pb.fp = fp; /* Initialize output buffer */
marcozecchini	0:9fca2b23d0ba	4576	pb.nchr = pb.idx = 0;
marcozecchini	0:9fca2b23d0ba	4577
marcozecchini	0:9fca2b23d0ba	4578	putc_bfd(&pb, c); /* Put a character */
marcozecchini	0:9fca2b23d0ba	4579
marcozecchini	0:9fca2b23d0ba	4580	if ( pb.idx >= 0 /* Flush buffered characters to the file */
marcozecchini	0:9fca2b23d0ba	4581	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
marcozecchini	0:9fca2b23d0ba	4582	&& (UINT)pb.idx == nw) return pb.nchr;
marcozecchini	0:9fca2b23d0ba	4583	return EOF;
marcozecchini	0:9fca2b23d0ba	4584	}
marcozecchini	0:9fca2b23d0ba	4585
marcozecchini	0:9fca2b23d0ba	4586
marcozecchini	0:9fca2b23d0ba	4587
marcozecchini	0:9fca2b23d0ba	4588
marcozecchini	0:9fca2b23d0ba	4589	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4590	/* Put a string to the file */
marcozecchini	0:9fca2b23d0ba	4591	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4592
marcozecchini	0:9fca2b23d0ba	4593	int f_puts (
marcozecchini	0:9fca2b23d0ba	4594	const TCHAR* str, /* Pointer to the string to be output */
marcozecchini	0:9fca2b23d0ba	4595	FIL* fp /* Pointer to the file object */
marcozecchini	0:9fca2b23d0ba	4596	)
marcozecchini	0:9fca2b23d0ba	4597	{
marcozecchini	0:9fca2b23d0ba	4598	putbuff pb;
marcozecchini	0:9fca2b23d0ba	4599	UINT nw;
marcozecchini	0:9fca2b23d0ba	4600
marcozecchini	0:9fca2b23d0ba	4601
marcozecchini	0:9fca2b23d0ba	4602	pb.fp = fp; /* Initialize output buffer */
marcozecchini	0:9fca2b23d0ba	4603	pb.nchr = pb.idx = 0;
marcozecchini	0:9fca2b23d0ba	4604
marcozecchini	0:9fca2b23d0ba	4605	while (str) / Put the string */
marcozecchini	0:9fca2b23d0ba	4606	putc_bfd(&pb, *str++);
marcozecchini	0:9fca2b23d0ba	4607
marcozecchini	0:9fca2b23d0ba	4608	if ( pb.idx >= 0 /* Flush buffered characters to the file */
marcozecchini	0:9fca2b23d0ba	4609	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
marcozecchini	0:9fca2b23d0ba	4610	&& (UINT)pb.idx == nw) return pb.nchr;
marcozecchini	0:9fca2b23d0ba	4611	return EOF;
marcozecchini	0:9fca2b23d0ba	4612	}
marcozecchini	0:9fca2b23d0ba	4613
marcozecchini	0:9fca2b23d0ba	4614
marcozecchini	0:9fca2b23d0ba	4615
marcozecchini	0:9fca2b23d0ba	4616
marcozecchini	0:9fca2b23d0ba	4617	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4618	/* Put a formatted string to the file */
marcozecchini	0:9fca2b23d0ba	4619	/-----------------------------------------------------------------------/
marcozecchini	0:9fca2b23d0ba	4620
marcozecchini	0:9fca2b23d0ba	4621	int f_printf (
marcozecchini	0:9fca2b23d0ba	4622	FIL* fp, /* Pointer to the file object */
marcozecchini	0:9fca2b23d0ba	4623	const TCHAR* fmt, /* Pointer to the format string */
marcozecchini	0:9fca2b23d0ba	4624	... /* Optional arguments... */
marcozecchini	0:9fca2b23d0ba	4625	)
marcozecchini	0:9fca2b23d0ba	4626	{
marcozecchini	0:9fca2b23d0ba	4627	va_list arp;
marcozecchini	0:9fca2b23d0ba	4628	BYTE f, r;
marcozecchini	0:9fca2b23d0ba	4629	UINT nw, i, j, w;
marcozecchini	0:9fca2b23d0ba	4630	DWORD v;
marcozecchini	0:9fca2b23d0ba	4631	TCHAR c, d, s[16], *p;
marcozecchini	0:9fca2b23d0ba	4632	putbuff pb;
marcozecchini	0:9fca2b23d0ba	4633
marcozecchini	0:9fca2b23d0ba	4634
marcozecchini	0:9fca2b23d0ba	4635	pb.fp = fp; /* Initialize output buffer */
marcozecchini	0:9fca2b23d0ba	4636	pb.nchr = pb.idx = 0;
marcozecchini	0:9fca2b23d0ba	4637
marcozecchini	0:9fca2b23d0ba	4638	va_start(arp, fmt);
marcozecchini	0:9fca2b23d0ba	4639
marcozecchini	0:9fca2b23d0ba	4640	for (;;) {
marcozecchini	0:9fca2b23d0ba	4641	c = *fmt++;
marcozecchini	0:9fca2b23d0ba	4642	if (c == 0) break; /* End of string */
marcozecchini	0:9fca2b23d0ba	4643	if (c != '%') { /* Non escape character */
marcozecchini	0:9fca2b23d0ba	4644	putc_bfd(&pb, c);
marcozecchini	0:9fca2b23d0ba	4645	continue;
marcozecchini	0:9fca2b23d0ba	4646	}
marcozecchini	0:9fca2b23d0ba	4647	w = f = 0;
marcozecchini	0:9fca2b23d0ba	4648	c = *fmt++;
marcozecchini	0:9fca2b23d0ba	4649	if (c == '0') { /* Flag: '0' padding */
marcozecchini	0:9fca2b23d0ba	4650	f = 1; c = *fmt++;
marcozecchini	0:9fca2b23d0ba	4651	} else {
marcozecchini	0:9fca2b23d0ba	4652	if (c == '-') { /* Flag: left justified */
marcozecchini	0:9fca2b23d0ba	4653	f = 2; c = *fmt++;
marcozecchini	0:9fca2b23d0ba	4654	}
marcozecchini	0:9fca2b23d0ba	4655	}
marcozecchini	0:9fca2b23d0ba	4656	while (IsDigit(c)) { /* Precision */
marcozecchini	0:9fca2b23d0ba	4657	w = w * 10 + c - '0';
marcozecchini	0:9fca2b23d0ba	4658	c = *fmt++;
marcozecchini	0:9fca2b23d0ba	4659	}
marcozecchini	0:9fca2b23d0ba	4660	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
marcozecchini	0:9fca2b23d0ba	4661	f \|= 4; c = *fmt++;
marcozecchini	0:9fca2b23d0ba	4662	}
marcozecchini	0:9fca2b23d0ba	4663	if (!c) break;
marcozecchini	0:9fca2b23d0ba	4664	d = c;
marcozecchini	0:9fca2b23d0ba	4665	if (IsLower(d)) d -= 0x20;
marcozecchini	0:9fca2b23d0ba	4666	switch (d) { /* Type is... */
marcozecchini	0:9fca2b23d0ba	4667	case 'S' : /* String */
marcozecchini	0:9fca2b23d0ba	4668	p = va_arg(arp, TCHAR*);
marcozecchini	0:9fca2b23d0ba	4669	for (j = 0; p[j]; j++) ;
marcozecchini	0:9fca2b23d0ba	4670	if (!(f & 2)) {
marcozecchini	0:9fca2b23d0ba	4671	while (j++ < w) putc_bfd(&pb, ' ');
marcozecchini	0:9fca2b23d0ba	4672	}
marcozecchini	0:9fca2b23d0ba	4673	while (p) putc_bfd(&pb, p++);
marcozecchini	0:9fca2b23d0ba	4674	while (j++ < w) putc_bfd(&pb, ' ');
marcozecchini	0:9fca2b23d0ba	4675	continue;
marcozecchini	0:9fca2b23d0ba	4676	case 'C' : /* Character */
marcozecchini	0:9fca2b23d0ba	4677	putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue;
marcozecchini	0:9fca2b23d0ba	4678	case 'B' : /* Binary */
marcozecchini	0:9fca2b23d0ba	4679	r = 2; break;
marcozecchini	0:9fca2b23d0ba	4680	case 'O' : /* Octal */
marcozecchini	0:9fca2b23d0ba	4681	r = 8; break;
marcozecchini	0:9fca2b23d0ba	4682	case 'D' : /* Signed decimal */
marcozecchini	0:9fca2b23d0ba	4683	case 'U' : /* Unsigned decimal */
marcozecchini	0:9fca2b23d0ba	4684	r = 10; break;
marcozecchini	0:9fca2b23d0ba	4685	case 'X' : /* Hexdecimal */
marcozecchini	0:9fca2b23d0ba	4686	r = 16; break;
marcozecchini	0:9fca2b23d0ba	4687	default: /* Unknown type (pass-through) */
marcozecchini	0:9fca2b23d0ba	4688	putc_bfd(&pb, c); continue;
marcozecchini	0:9fca2b23d0ba	4689	}
marcozecchini	0:9fca2b23d0ba	4690
marcozecchini	0:9fca2b23d0ba	4691	/* Get an argument and put it in numeral */
marcozecchini	0:9fca2b23d0ba	4692	v = (f & 4) ? (DWORD)va_arg(arp, long) : ((d == 'D') ? (DWORD)(long)va_arg(arp, int) : (DWORD)va_arg(arp, unsigned int));
marcozecchini	0:9fca2b23d0ba	4693	if (d == 'D' && (v & 0x80000000)) {
marcozecchini	0:9fca2b23d0ba	4694	v = 0 - v;
marcozecchini	0:9fca2b23d0ba	4695	f \|= 8;
marcozecchini	0:9fca2b23d0ba	4696	}
marcozecchini	0:9fca2b23d0ba	4697	i = 0;
marcozecchini	0:9fca2b23d0ba	4698	do {
marcozecchini	0:9fca2b23d0ba	4699	d = (TCHAR)(v % r); v /= r;
marcozecchini	0:9fca2b23d0ba	4700	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
marcozecchini	0:9fca2b23d0ba	4701	s[i++] = d + '0';
marcozecchini	0:9fca2b23d0ba	4702	} while (v && i < sizeof s / sizeof s[0]);
marcozecchini	0:9fca2b23d0ba	4703	if (f & 8) s[i++] = '-';
marcozecchini	0:9fca2b23d0ba	4704	j = i; d = (f & 1) ? '0' : ' ';
marcozecchini	0:9fca2b23d0ba	4705	while (!(f & 2) && j++ < w) putc_bfd(&pb, d);
marcozecchini	0:9fca2b23d0ba	4706	do putc_bfd(&pb, s[--i]); while (i);
marcozecchini	0:9fca2b23d0ba	4707	while (j++ < w) putc_bfd(&pb, d);
marcozecchini	0:9fca2b23d0ba	4708	}
marcozecchini	0:9fca2b23d0ba	4709
marcozecchini	0:9fca2b23d0ba	4710	va_end(arp);
marcozecchini	0:9fca2b23d0ba	4711
marcozecchini	0:9fca2b23d0ba	4712	if ( pb.idx >= 0 /* Flush buffered characters to the file */
marcozecchini	0:9fca2b23d0ba	4713	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
marcozecchini	0:9fca2b23d0ba	4714	&& (UINT)pb.idx == nw) return pb.nchr;
marcozecchini	0:9fca2b23d0ba	4715	return EOF;
marcozecchini	0:9fca2b23d0ba	4716	}
marcozecchini	0:9fca2b23d0ba	4717
marcozecchini	0:9fca2b23d0ba	4718	#endif /* !_FS_READONLY */
marcozecchini	0:9fca2b23d0ba	4719	#endif /* _USE_STRFUNC */

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Type:	Program
Mbed OS support:	Mbed OS
Created:	23 Feb 2019
Imports:	43
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	1

mbed-os/features/filesystem/fat/ChaN/ff.cpp@0:9fca2b23d0ba, 2019-02-23 (annotated)

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