FATFileSystem - FATFileSystem

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FATFileSystem

Dependents: SDFileSystem IPS SDFileSystem SDFileSystem ... more

Fork of FATFileSystem by mbed official

ChaN/ff.cpp@10:28e685e5ff7f, 2017-07-10 (annotated)

Committer:: geky
Date:: Mon Jul 10 15:37:41 2017 +0000
Revision:: 10:28e685e5ff7f
Parent:: 6:a5fcdbf92056

Added stubs for FileSystemLike updates

Who changed what in which revision?

User	Revision	Line number	New contents of line
emilmont	1:46ce1e16c870	1	/*----------------------------------------------------------------------------/
mbed_official	6:a5fcdbf92056	2	/ FatFs - FAT file system module R0.11a (C)ChaN, 2015 /
emilmont	1:46ce1e16c870	3	/-----------------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4	/ FatFs module is a free software that opened under license policy of
mbed_official	5:b3b3370574cf	5	/ following conditions.
emilmont	1:46ce1e16c870	6	/
mbed_official	5:b3b3370574cf	7	/ Copyright (C) 2015, ChaN, all right reserved.
emilmont	1:46ce1e16c870	8	/
mbed_official	5:b3b3370574cf	9	/ 1. Redistributions of source code must retain the above copyright notice,
mbed_official	5:b3b3370574cf	10	/ this condition and the following disclaimer.
emilmont	1:46ce1e16c870	11	/
mbed_official	5:b3b3370574cf	12	/ This software is provided by the copyright holder and contributors "AS IS"
mbed_official	5:b3b3370574cf	13	/ and any warranties related to this software are DISCLAIMED.
mbed_official	5:b3b3370574cf	14	/ The copyright owner or contributors be NOT LIABLE for any damages caused
mbed_official	5:b3b3370574cf	15	/ by use of this software.
mbed_official	5:b3b3370574cf	16	/----------------------------------------------------------------------------*/
mbed_official	5:b3b3370574cf	17
mbed_official	5:b3b3370574cf	18
mbed_official	5:b3b3370574cf	19	#include "ff.h" /* Declarations of FatFs API */
mbed_official	5:b3b3370574cf	20	#include "diskio.h" /* Declarations of disk I/O functions */
emilmont	1:46ce1e16c870	21
emilmont	1:46ce1e16c870	22
emilmont	1:46ce1e16c870	23	/*--------------------------------------------------------------------------
emilmont	1:46ce1e16c870	24
emilmont	1:46ce1e16c870	25	Module Private Definitions
emilmont	1:46ce1e16c870	26
emilmont	1:46ce1e16c870	27	---------------------------------------------------------------------------*/
emilmont	1:46ce1e16c870	28
mbed_official	6:a5fcdbf92056	29	#if _FATFS != 64180 /* Revision ID */
emilmont	1:46ce1e16c870	30	#error Wrong include file (ff.h).
emilmont	1:46ce1e16c870	31	#endif
emilmont	1:46ce1e16c870	32
emilmont	1:46ce1e16c870	33
emilmont	1:46ce1e16c870	34	/* Reentrancy related */
emilmont	1:46ce1e16c870	35	#if _FS_REENTRANT
emilmont	1:46ce1e16c870	36	#if _USE_LFN == 1
mbed_official	5:b3b3370574cf	37	#error Static LFN work area cannot be used at thread-safe configuration
emilmont	1:46ce1e16c870	38	#endif
mbed_official	5:b3b3370574cf	39	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
mbed_official	5:b3b3370574cf	40	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
emilmont	1:46ce1e16c870	41	#else
mbed_official	5:b3b3370574cf	42	#define ENTER_FF(fs)
mbed_official	5:b3b3370574cf	43	#define LEAVE_FF(fs, res) return res
mbed_official	5:b3b3370574cf	44	#endif
mbed_official	5:b3b3370574cf	45
mbed_official	5:b3b3370574cf	46	#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }
mbed_official	5:b3b3370574cf	47
mbed_official	5:b3b3370574cf	48
mbed_official	5:b3b3370574cf	49	/* Definitions of sector size */
mbed_official	5:b3b3370574cf	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)
mbed_official	5:b3b3370574cf	51	#error Wrong sector size configuration
emilmont	1:46ce1e16c870	52	#endif
mbed_official	5:b3b3370574cf	53	#if _MAX_SS == _MIN_SS
mbed_official	5:b3b3370574cf	54	#define SS(fs) ((UINT)_MAX_SS) /* Fixed sector size */
mbed_official	5:b3b3370574cf	55	#else
mbed_official	5:b3b3370574cf	56	#define SS(fs) ((fs)->ssize) /* Variable sector size */
mbed_official	5:b3b3370574cf	57	#endif
mbed_official	5:b3b3370574cf	58
mbed_official	5:b3b3370574cf	59
mbed_official	5:b3b3370574cf	60	/* Timestamp feature */
mbed_official	5:b3b3370574cf	61	#if _FS_NORTC == 1
mbed_official	5:b3b3370574cf	62	#if _NORTC_YEAR < 1980 \|\| _NORTC_YEAR > 2107 \|\| _NORTC_MON < 1 \|\| _NORTC_MON > 12 \|\| _NORTC_MDAY < 1 \|\| _NORTC_MDAY > 31
mbed_official	5:b3b3370574cf	63	#error Invalid _FS_NORTC settings
mbed_official	5:b3b3370574cf	64	#endif
mbed_official	5:b3b3370574cf	65	#define GET_FATTIME() ((DWORD)(_NORTC_YEAR - 1980) << 25 \| (DWORD)_NORTC_MON << 21 \| (DWORD)_NORTC_MDAY << 16)
mbed_official	5:b3b3370574cf	66	#else
mbed_official	5:b3b3370574cf	67	#define GET_FATTIME() get_fattime()
mbed_official	5:b3b3370574cf	68	#endif
emilmont	1:46ce1e16c870	69
emilmont	1:46ce1e16c870	70
emilmont	1:46ce1e16c870	71	/* File access control feature */
emilmont	1:46ce1e16c870	72	#if _FS_LOCK
emilmont	1:46ce1e16c870	73	#if _FS_READONLY
mbed_official	5:b3b3370574cf	74	#error _FS_LOCK must be 0 at read-only configuration
emilmont	1:46ce1e16c870	75	#endif
emilmont	1:46ce1e16c870	76	typedef struct {
mbed_official	5:b3b3370574cf	77	FATFS fs; / Object ID 1, volume (NULL:blank entry) */
mbed_official	5:b3b3370574cf	78	DWORD clu; /* Object ID 2, directory (0:root) */
mbed_official	5:b3b3370574cf	79	WORD idx; /* Object ID 3, directory index */
mbed_official	5:b3b3370574cf	80	WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */
emilmont	1:46ce1e16c870	81	} FILESEM;
emilmont	1:46ce1e16c870	82	#endif
emilmont	1:46ce1e16c870	83
emilmont	1:46ce1e16c870	84
emilmont	1:46ce1e16c870	85
mbed_official	6:a5fcdbf92056	86	/* DBCS code ranges and SBCS upper conversion tables */
mbed_official	5:b3b3370574cf	87
mbed_official	5:b3b3370574cf	88	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
mbed_official	5:b3b3370574cf	89	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
mbed_official	5:b3b3370574cf	90	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
mbed_official	5:b3b3370574cf	91	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
mbed_official	5:b3b3370574cf	92	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
mbed_official	5:b3b3370574cf	93	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
mbed_official	5:b3b3370574cf	94	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
mbed_official	5:b3b3370574cf	95	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
mbed_official	5:b3b3370574cf	96	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
mbed_official	5:b3b3370574cf	97
mbed_official	5:b3b3370574cf	98	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
mbed_official	5:b3b3370574cf	99	#define _DF1S 0x81
mbed_official	5:b3b3370574cf	100	#define _DF1E 0xFE
mbed_official	5:b3b3370574cf	101	#define _DS1S 0x40
mbed_official	5:b3b3370574cf	102	#define _DS1E 0x7E
mbed_official	5:b3b3370574cf	103	#define _DS2S 0x80
mbed_official	5:b3b3370574cf	104	#define _DS2E 0xFE
mbed_official	5:b3b3370574cf	105
mbed_official	5:b3b3370574cf	106	#elif _CODE_PAGE == 949 /* Korean */
mbed_official	5:b3b3370574cf	107	#define _DF1S 0x81
mbed_official	5:b3b3370574cf	108	#define _DF1E 0xFE
mbed_official	5:b3b3370574cf	109	#define _DS1S 0x41
mbed_official	5:b3b3370574cf	110	#define _DS1E 0x5A
mbed_official	5:b3b3370574cf	111	#define _DS2S 0x61
mbed_official	5:b3b3370574cf	112	#define _DS2E 0x7A
mbed_official	5:b3b3370574cf	113	#define _DS3S 0x81
mbed_official	5:b3b3370574cf	114	#define _DS3E 0xFE
mbed_official	5:b3b3370574cf	115
mbed_official	5:b3b3370574cf	116	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
mbed_official	5:b3b3370574cf	117	#define _DF1S 0x81
mbed_official	5:b3b3370574cf	118	#define _DF1E 0xFE
mbed_official	5:b3b3370574cf	119	#define _DS1S 0x40
mbed_official	5:b3b3370574cf	120	#define _DS1E 0x7E
mbed_official	5:b3b3370574cf	121	#define _DS2S 0xA1
mbed_official	5:b3b3370574cf	122	#define _DS2E 0xFE
mbed_official	5:b3b3370574cf	123
mbed_official	6:a5fcdbf92056	124	#elif _CODE_PAGE == 437 /* U.S. */
mbed_official	5:b3b3370574cf	125	#define _DF1S 0
mbed_official	6:a5fcdbf92056	126	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	127	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	128	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	129	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	130	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	131	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	132	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	133	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	134
mbed_official	6:a5fcdbf92056	135	#elif _CODE_PAGE == 720 /* Arabic */
mbed_official	5:b3b3370574cf	136	#define _DF1S 0
mbed_official	6:a5fcdbf92056	137	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	138	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	139	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	140	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	141	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	142	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	143	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	144	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	145
mbed_official	6:a5fcdbf92056	146	#elif _CODE_PAGE == 737 /* Greek */
mbed_official	5:b3b3370574cf	147	#define _DF1S 0
mbed_official	6:a5fcdbf92056	148	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	149	0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
mbed_official	6:a5fcdbf92056	150	0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96, \
mbed_official	6:a5fcdbf92056	151	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	152	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	153	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	154	0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xEF,0xF5,0xF0,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	155	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	156
mbed_official	6:a5fcdbf92056	157	#elif _CODE_PAGE == 771 /* KBL */
mbed_official	5:b3b3370574cf	158	#define _DF1S 0
mbed_official	6:a5fcdbf92056	159	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	160	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	161	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	162	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	163	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	164	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDC,0xDE,0xDE, \
mbed_official	6:a5fcdbf92056	165	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	166	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	167
mbed_official	6:a5fcdbf92056	168	#elif _CODE_PAGE == 775 /* Baltic */
mbed_official	5:b3b3370574cf	169	#define _DF1S 0
mbed_official	6:a5fcdbf92056	170	#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	171	0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	172	0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	173	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	174	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	175	0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	176	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	177	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	178
mbed_official	6:a5fcdbf92056	179	#elif _CODE_PAGE == 850 /* Latin 1 */
mbed_official	5:b3b3370574cf	180	#define _DF1S 0
mbed_official	6:a5fcdbf92056	181	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x41,0x43,0x45,0x45,0x45,0x49,0x49,0x49,0x41,0x41, \
mbed_official	6:a5fcdbf92056	182	0x45,0x92,0x92,0x4F,0x4F,0x4F,0x55,0x55,0x59,0x4F,0x55,0x4F,0x9C,0x4F,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	183	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	184	0xB0,0xB1,0xB2,0xB3,0xB4,0x41,0x41,0x41,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	185	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0x41,0x41,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	186	0xD1,0xD1,0x45,0x45,0x45,0x49,0x49,0x49,0x49,0xD9,0xDA,0xDB,0xDC,0xDD,0x49,0xDF, \
mbed_official	6:a5fcdbf92056	187	0x4F,0xE1,0x4F,0x4F,0x4F,0x4F,0xE6,0xE8,0xE8,0x55,0x55,0x55,0x59,0x59,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	188	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	189
mbed_official	6:a5fcdbf92056	190	#elif _CODE_PAGE == 852 /* Latin 2 */
mbed_official	5:b3b3370574cf	191	#define _DF1S 0
mbed_official	6:a5fcdbf92056	192	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	193	0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0xAC, \
mbed_official	6:a5fcdbf92056	194	0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	195	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
mbed_official	6:a5fcdbf92056	196	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	197	0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	198	0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF, \
mbed_official	6:a5fcdbf92056	199	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	200
mbed_official	6:a5fcdbf92056	201	#elif _CODE_PAGE == 855 /* Cyrillic */
mbed_official	5:b3b3370574cf	202	#define _DF1S 0
mbed_official	6:a5fcdbf92056	203	#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F, \
mbed_official	6:a5fcdbf92056	204	0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
mbed_official	6:a5fcdbf92056	205	0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	206	0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	207	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	208	0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
mbed_official	6:a5fcdbf92056	209	0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	210	0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	211
mbed_official	6:a5fcdbf92056	212	#elif _CODE_PAGE == 857 /* Turkish */
mbed_official	5:b3b3370574cf	213	#define _DF1S 0
mbed_official	6:a5fcdbf92056	214	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x49,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	215	0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
mbed_official	6:a5fcdbf92056	216	0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	217	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	218	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	219	0xD0,0xD1,0xD2,0xD3,0xD4,0x49,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	220	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	221	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	222
mbed_official	6:a5fcdbf92056	223	#elif _CODE_PAGE == 860 /* Portuguese */
mbed_official	5:b3b3370574cf	224	#define _DF1S 0
mbed_official	6:a5fcdbf92056	225	#define _EXCVT {0x80,0x9A,0x90,0x8F,0x8E,0x91,0x86,0x80,0x89,0x89,0x92,0x8B,0x8C,0x98,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	226	0x90,0x91,0x92,0x8C,0x99,0xA9,0x96,0x9D,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	227	0x86,0x8B,0x9F,0x96,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	228	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	229	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	230	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	231	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	232	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	233
mbed_official	6:a5fcdbf92056	234	#elif _CODE_PAGE == 861 /* Icelandic */
mbed_official	5:b3b3370574cf	235	#define _DF1S 0
mbed_official	6:a5fcdbf92056	236	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x8B,0x8B,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	237	0x90,0x92,0x92,0x4F,0x99,0x8D,0x55,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	238	0xA4,0xA5,0xA6,0xA7,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	239	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	240	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	241	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	242	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	243	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	244
mbed_official	6:a5fcdbf92056	245	#elif _CODE_PAGE == 862 /* Hebrew */
mbed_official	5:b3b3370574cf	246	#define _DF1S 0
mbed_official	6:a5fcdbf92056	247	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	248	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	249	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	250	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	251	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	252	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	253	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	254	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	255
mbed_official	6:a5fcdbf92056	256	#elif _CODE_PAGE == 863 /* Canadian-French */
mbed_official	5:b3b3370574cf	257	#define _DF1S 0
mbed_official	6:a5fcdbf92056	258	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x41,0x8F, \
mbed_official	6:a5fcdbf92056	259	0x45,0x45,0x45,0x4F,0x45,0x49,0x55,0x55,0x98,0x4F,0x55,0x9B,0x9C,0x55,0x55,0x9F, \
mbed_official	6:a5fcdbf92056	260	0xA0,0xA1,0x4F,0x55,0xA4,0xA5,0xA6,0xA7,0x49,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	261	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	262	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	263	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	264	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	265	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	266
mbed_official	6:a5fcdbf92056	267	#elif _CODE_PAGE == 864 /* Arabic */
mbed_official	5:b3b3370574cf	268	#define _DF1S 0
mbed_official	6:a5fcdbf92056	269	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	270	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	271	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	272	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	273	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	274	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	275	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	276	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	277
mbed_official	6:a5fcdbf92056	278	#elif _CODE_PAGE == 865 /* Nordic */
mbed_official	5:b3b3370574cf	279	#define _DF1S 0
mbed_official	6:a5fcdbf92056	280	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	281	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	282	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	283	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	284	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	285	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	286	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	287	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	288
mbed_official	6:a5fcdbf92056	289	#elif _CODE_PAGE == 866 /* Russian */
mbed_official	5:b3b3370574cf	290	#define _DF1S 0
mbed_official	6:a5fcdbf92056	291	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	292	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	293	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	294	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	295	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	296	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	297	0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	298	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	299
mbed_official	6:a5fcdbf92056	300	#elif _CODE_PAGE == 869 /* Greek 2 */
mbed_official	5:b3b3370574cf	301	#define _DF1S 0
mbed_official	6:a5fcdbf92056	302	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	303	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x86,0x9C,0x8D,0x8F,0x90, \
mbed_official	6:a5fcdbf92056	304	0x91,0x90,0x92,0x95,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	305	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	306	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	307	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xA4,0xA5,0xA6,0xD9,0xDA,0xDB,0xDC,0xA7,0xA8,0xDF, \
mbed_official	6:a5fcdbf92056	308	0xA9,0xAA,0xAC,0xAD,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xCF,0xCF,0xD0,0xEF, \
mbed_official	6:a5fcdbf92056	309	0xF0,0xF1,0xD1,0xD2,0xD3,0xF5,0xD4,0xF7,0xF8,0xF9,0xD5,0x96,0x95,0x98,0xFE,0xFF}
mbed_official	5:b3b3370574cf	310
mbed_official	5:b3b3370574cf	311	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
emilmont	1:46ce1e16c870	312	#if _USE_LFN
emilmont	1:46ce1e16c870	313	#error Cannot use LFN feature without valid code page.
emilmont	1:46ce1e16c870	314	#endif
mbed_official	5:b3b3370574cf	315	#define _DF1S 0
emilmont	1:46ce1e16c870	316
emilmont	1:46ce1e16c870	317	#else
emilmont	1:46ce1e16c870	318	#error Unknown code page
emilmont	1:46ce1e16c870	319
emilmont	1:46ce1e16c870	320	#endif
emilmont	1:46ce1e16c870	321
emilmont	1:46ce1e16c870	322
emilmont	1:46ce1e16c870	323	/* Character code support macros */
mbed_official	5:b3b3370574cf	324	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
mbed_official	5:b3b3370574cf	325	#define IsLower(c) (((c)>='a')&&((c)<='z'))
mbed_official	5:b3b3370574cf	326	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
mbed_official	5:b3b3370574cf	327
mbed_official	5:b3b3370574cf	328	#if _DF1S /* Code page is DBCS */
mbed_official	5:b3b3370574cf	329
mbed_official	5:b3b3370574cf	330	#ifdef _DF2S /* Two 1st byte areas */
mbed_official	5:b3b3370574cf	331	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
mbed_official	5:b3b3370574cf	332	#else /* One 1st byte area */
mbed_official	5:b3b3370574cf	333	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
emilmont	1:46ce1e16c870	334	#endif
emilmont	1:46ce1e16c870	335
mbed_official	5:b3b3370574cf	336	#ifdef _DS3S /* Three 2nd byte areas */
mbed_official	5:b3b3370574cf	337	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
mbed_official	5:b3b3370574cf	338	#else /* Two 2nd byte areas */
mbed_official	5:b3b3370574cf	339	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
emilmont	1:46ce1e16c870	340	#endif
emilmont	1:46ce1e16c870	341
mbed_official	5:b3b3370574cf	342	#else /* Code page is SBCS */
mbed_official	5:b3b3370574cf	343
mbed_official	5:b3b3370574cf	344	#define IsDBCS1(c) 0
mbed_official	5:b3b3370574cf	345	#define IsDBCS2(c) 0
emilmont	1:46ce1e16c870	346
emilmont	1:46ce1e16c870	347	#endif /* _DF1S */
emilmont	1:46ce1e16c870	348
emilmont	1:46ce1e16c870	349
emilmont	1:46ce1e16c870	350	/* Name status flags */
mbed_official	5:b3b3370574cf	351	#define NSFLAG 11 /* Index of name status byte in fn[] */
mbed_official	5:b3b3370574cf	352	#define NS_LOSS 0x01 /* Out of 8.3 format */
mbed_official	5:b3b3370574cf	353	#define NS_LFN 0x02 /* Force to create LFN entry */
mbed_official	5:b3b3370574cf	354	#define NS_LAST 0x04 /* Last segment */
mbed_official	5:b3b3370574cf	355	#define NS_BODY 0x08 /* Lower case flag (body) */
mbed_official	5:b3b3370574cf	356	#define NS_EXT 0x10 /* Lower case flag (ext) */
mbed_official	5:b3b3370574cf	357	#define NS_DOT 0x20 /* Dot entry */
mbed_official	5:b3b3370574cf	358
mbed_official	5:b3b3370574cf	359
mbed_official	5:b3b3370574cf	360	/* FAT sub-type boundaries (Differ from specs but correct for real DOS/Windows) */
mbed_official	6:a5fcdbf92056	361	#define MIN_FAT16 4086U /* Minimum number of clusters of FAT16 */
mbed_official	6:a5fcdbf92056	362	#define MIN_FAT32 65526U /* Minimum number of clusters of FAT32 */
emilmont	1:46ce1e16c870	363
emilmont	1:46ce1e16c870	364
emilmont	1:46ce1e16c870	365	/* FatFs refers the members in the FAT structures as byte array instead of
mbed_official	6:a5fcdbf92056	366	/ structure members because the structure is not binary compatible between
emilmont	1:46ce1e16c870	367	/ different platforms */
emilmont	1:46ce1e16c870	368
mbed_official	5:b3b3370574cf	369	#define BS_jmpBoot 0 /* x86 jump instruction (3) */
mbed_official	5:b3b3370574cf	370	#define BS_OEMName 3 /* OEM name (8) */
mbed_official	5:b3b3370574cf	371	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
mbed_official	5:b3b3370574cf	372	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
mbed_official	5:b3b3370574cf	373	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
mbed_official	5:b3b3370574cf	374	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
mbed_official	5:b3b3370574cf	375	#define BPB_RootEntCnt 17 /* Number of root directory entries for FAT12/16 (2) */
mbed_official	5:b3b3370574cf	376	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
mbed_official	5:b3b3370574cf	377	#define BPB_Media 21 /* Media descriptor (1) */
mbed_official	5:b3b3370574cf	378	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
mbed_official	5:b3b3370574cf	379	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
mbed_official	5:b3b3370574cf	380	#define BPB_NumHeads 26 /* Number of heads (2) */
mbed_official	5:b3b3370574cf	381	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
mbed_official	5:b3b3370574cf	382	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
mbed_official	6:a5fcdbf92056	383	#define BS_DrvNum 36 /* Physical drive number (1) */
mbed_official	6:a5fcdbf92056	384	#define BS_NTres 37 /* Error flag (1) */
mbed_official	5:b3b3370574cf	385	#define BS_BootSig 38 /* Extended boot signature (1) */
mbed_official	5:b3b3370574cf	386	#define BS_VolID 39 /* Volume serial number (4) */
mbed_official	5:b3b3370574cf	387	#define BS_VolLab 43 /* Volume label (8) */
mbed_official	5:b3b3370574cf	388	#define BS_FilSysType 54 /* File system type (1) */
mbed_official	5:b3b3370574cf	389	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
mbed_official	5:b3b3370574cf	390	#define BPB_ExtFlags 40 /* Extended flags (2) */
mbed_official	5:b3b3370574cf	391	#define BPB_FSVer 42 /* File system version (2) */
mbed_official	5:b3b3370574cf	392	#define BPB_RootClus 44 /* Root directory first cluster (4) */
mbed_official	5:b3b3370574cf	393	#define BPB_FSInfo 48 /* Offset of FSINFO sector (2) */
mbed_official	5:b3b3370574cf	394	#define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
mbed_official	6:a5fcdbf92056	395	#define BS_DrvNum32 64 /* Physical drive number (1) */
mbed_official	6:a5fcdbf92056	396	#define BS_NTres32 65 /* Error flag (1) */
mbed_official	5:b3b3370574cf	397	#define BS_BootSig32 66 /* Extended boot signature (1) */
mbed_official	5:b3b3370574cf	398	#define BS_VolID32 67 /* Volume serial number (4) */
mbed_official	5:b3b3370574cf	399	#define BS_VolLab32 71 /* Volume label (8) */
mbed_official	5:b3b3370574cf	400	#define BS_FilSysType32 82 /* File system type (1) */
mbed_official	5:b3b3370574cf	401	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
mbed_official	5:b3b3370574cf	402	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
mbed_official	5:b3b3370574cf	403	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
mbed_official	5:b3b3370574cf	404	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
mbed_official	5:b3b3370574cf	405	#define MBR_Table 446 /* MBR: Partition table offset (2) */
mbed_official	5:b3b3370574cf	406	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
mbed_official	5:b3b3370574cf	407	#define BS_55AA 510 /* Signature word (2) */
mbed_official	5:b3b3370574cf	408
mbed_official	5:b3b3370574cf	409	#define DIR_Name 0 /* Short file name (11) */
mbed_official	5:b3b3370574cf	410	#define DIR_Attr 11 /* Attribute (1) */
mbed_official	5:b3b3370574cf	411	#define DIR_NTres 12 /* Lower case flag (1) */
mbed_official	5:b3b3370574cf	412	#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
mbed_official	5:b3b3370574cf	413	#define DIR_CrtTime 14 /* Created time (2) */
mbed_official	5:b3b3370574cf	414	#define DIR_CrtDate 16 /* Created date (2) */
mbed_official	5:b3b3370574cf	415	#define DIR_LstAccDate 18 /* Last accessed date (2) */
mbed_official	5:b3b3370574cf	416	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
mbed_official	5:b3b3370574cf	417	#define DIR_WrtTime 22 /* Modified time (2) */
mbed_official	5:b3b3370574cf	418	#define DIR_WrtDate 24 /* Modified date (2) */
mbed_official	5:b3b3370574cf	419	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
mbed_official	5:b3b3370574cf	420	#define DIR_FileSize 28 /* File size (4) */
mbed_official	5:b3b3370574cf	421	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
mbed_official	5:b3b3370574cf	422	#define LDIR_Attr 11 /* LFN attribute (1) */
mbed_official	5:b3b3370574cf	423	#define LDIR_Type 12 /* LFN type (1) */
mbed_official	6:a5fcdbf92056	424	#define LDIR_Chksum 13 /* Checksum of corresponding SFN entry */
mbed_official	5:b3b3370574cf	425	#define LDIR_FstClusLO 26 /* Must be zero (0) */
mbed_official	5:b3b3370574cf	426	#define SZ_DIRE 32 /* Size of a directory entry */
mbed_official	5:b3b3370574cf	427	#define LLEF 0x40 /* Last long entry flag in LDIR_Ord */
mbed_official	5:b3b3370574cf	428	#define DDEM 0xE5 /* Deleted directory entry mark at DIR_Name[0] */
mbed_official	5:b3b3370574cf	429	#define RDDEM 0x05 /* Replacement of the character collides with DDEM */
mbed_official	5:b3b3370574cf	430
mbed_official	5:b3b3370574cf	431
emilmont	1:46ce1e16c870	432
emilmont	1:46ce1e16c870	433
mbed_official	6:a5fcdbf92056	434	/*--------------------------------------------------------------------------
mbed_official	6:a5fcdbf92056	435
mbed_official	6:a5fcdbf92056	436	Module Private Work Area
mbed_official	6:a5fcdbf92056	437
mbed_official	6:a5fcdbf92056	438	---------------------------------------------------------------------------*/
mbed_official	6:a5fcdbf92056	439
mbed_official	6:a5fcdbf92056	440	/* Remark: Uninitialized variables with static duration are guaranteed
mbed_official	6:a5fcdbf92056	441	/ zero/null at start-up. If not, either the linker or start-up routine
mbed_official	6:a5fcdbf92056	442	/ being used is not compliance with ANSI-C standard.
emilmont	1:46ce1e16c870	443	*/
emilmont	1:46ce1e16c870	444
mbed_official	5:b3b3370574cf	445	#if _VOLUMES < 1 \|\| _VOLUMES > 9
mbed_official	5:b3b3370574cf	446	#error Wrong _VOLUMES setting
emilmont	1:46ce1e16c870	447	#endif
mbed_official	5:b3b3370574cf	448	static FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
mbed_official	5:b3b3370574cf	449	static WORD Fsid; /* File system mount ID */
mbed_official	5:b3b3370574cf	450
mbed_official	5:b3b3370574cf	451	#if _FS_RPATH && _VOLUMES >= 2
mbed_official	5:b3b3370574cf	452	static BYTE CurrVol; /* Current drive */
emilmont	1:46ce1e16c870	453	#endif
emilmont	1:46ce1e16c870	454
emilmont	1:46ce1e16c870	455	#if _FS_LOCK
mbed_official	5:b3b3370574cf	456	static FILESEM Files[_FS_LOCK]; /* Open object lock semaphores */
mbed_official	5:b3b3370574cf	457	#endif
mbed_official	5:b3b3370574cf	458
mbed_official	5:b3b3370574cf	459	#if _USE_LFN == 0 /* Non LFN feature */
mbed_official	5:b3b3370574cf	460	#define DEFINE_NAMEBUF BYTE sfn[12]
mbed_official	5:b3b3370574cf	461	#define INIT_BUF(dobj) (dobj).fn = sfn
mbed_official	5:b3b3370574cf	462	#define FREE_BUF()
mbed_official	5:b3b3370574cf	463	#else
mbed_official	5:b3b3370574cf	464	#if _MAX_LFN < 12 \|\| _MAX_LFN > 255
mbed_official	5:b3b3370574cf	465	#error Wrong _MAX_LFN setting
emilmont	1:46ce1e16c870	466	#endif
mbed_official	5:b3b3370574cf	467	#if _USE_LFN == 1 /* LFN feature with static working buffer */
mbed_official	5:b3b3370574cf	468	static WCHAR LfnBuf[_MAX_LFN + 1];
mbed_official	5:b3b3370574cf	469	#define DEFINE_NAMEBUF BYTE sfn[12]
mbed_official	5:b3b3370574cf	470	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
mbed_official	5:b3b3370574cf	471	#define FREE_BUF()
mbed_official	5:b3b3370574cf	472	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
mbed_official	5:b3b3370574cf	473	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN + 1]
mbed_official	5:b3b3370574cf	474	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
mbed_official	5:b3b3370574cf	475	#define FREE_BUF()
mbed_official	5:b3b3370574cf	476	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
mbed_official	5:b3b3370574cf	477	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR *lfn
mbed_official	5:b3b3370574cf	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; }
mbed_official	5:b3b3370574cf	479	#define FREE_BUF() ff_memfree(lfn)
emilmont	1:46ce1e16c870	480	#else
mbed_official	5:b3b3370574cf	481	#error Wrong _USE_LFN setting
mbed_official	5:b3b3370574cf	482	#endif
emilmont	1:46ce1e16c870	483	#endif
emilmont	1:46ce1e16c870	484
mbed_official	5:b3b3370574cf	485	#ifdef _EXCVT
mbed_official	6:a5fcdbf92056	486	static const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for SBCS extended characters */
mbed_official	5:b3b3370574cf	487	#endif
mbed_official	5:b3b3370574cf	488
mbed_official	5:b3b3370574cf	489
mbed_official	5:b3b3370574cf	490
emilmont	1:46ce1e16c870	491
emilmont	1:46ce1e16c870	492
emilmont	1:46ce1e16c870	493
emilmont	1:46ce1e16c870	494	/*--------------------------------------------------------------------------
emilmont	1:46ce1e16c870	495
emilmont	1:46ce1e16c870	496	Module Private Functions
emilmont	1:46ce1e16c870	497
emilmont	1:46ce1e16c870	498	---------------------------------------------------------------------------*/
emilmont	1:46ce1e16c870	499
emilmont	1:46ce1e16c870	500
emilmont	1:46ce1e16c870	501	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	502	/* String functions */
emilmont	1:46ce1e16c870	503	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	504
emilmont	1:46ce1e16c870	505	/* Copy memory to memory */
emilmont	1:46ce1e16c870	506	static
mbed_official	4:3ff2606d5713	507	void mem_cpy (void* dst, const void* src, UINT cnt) {
mbed_official	5:b3b3370574cf	508	BYTE d = (BYTE)dst;
mbed_official	5:b3b3370574cf	509	const BYTE s = (const BYTE)src;
emilmont	1:46ce1e16c870	510
emilmont	1:46ce1e16c870	511	#if _WORD_ACCESS == 1
mbed_official	5:b3b3370574cf	512	while (cnt >= sizeof (int)) {
mbed_official	5:b3b3370574cf	513	(int)d = (int)s;
mbed_official	5:b3b3370574cf	514	d += sizeof (int); s += sizeof (int);
mbed_official	5:b3b3370574cf	515	cnt -= sizeof (int);
mbed_official	5:b3b3370574cf	516	}
emilmont	1:46ce1e16c870	517	#endif
mbed_official	5:b3b3370574cf	518	while (cnt--)
mbed_official	5:b3b3370574cf	519	d++ = s++;
emilmont	1:46ce1e16c870	520	}
emilmont	1:46ce1e16c870	521
emilmont	1:46ce1e16c870	522	/* Fill memory */
emilmont	1:46ce1e16c870	523	static
mbed_official	4:3ff2606d5713	524	void mem_set (void* dst, int val, UINT cnt) {
mbed_official	5:b3b3370574cf	525	BYTE d = (BYTE)dst;
mbed_official	5:b3b3370574cf	526
mbed_official	5:b3b3370574cf	527	while (cnt--)
mbed_official	5:b3b3370574cf	528	*d++ = (BYTE)val;
emilmont	1:46ce1e16c870	529	}
emilmont	1:46ce1e16c870	530
emilmont	1:46ce1e16c870	531	/* Compare memory to memory */
emilmont	1:46ce1e16c870	532	static
mbed_official	4:3ff2606d5713	533	int mem_cmp (const void* dst, const void* src, UINT cnt) {
mbed_official	5:b3b3370574cf	534	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
mbed_official	5:b3b3370574cf	535	int r = 0;
mbed_official	5:b3b3370574cf	536
mbed_official	5:b3b3370574cf	537	while (cnt-- && (r = d++ - s++) == 0) ;
mbed_official	5:b3b3370574cf	538	return r;
emilmont	1:46ce1e16c870	539	}
emilmont	1:46ce1e16c870	540
emilmont	1:46ce1e16c870	541	/* Check if chr is contained in the string */
emilmont	1:46ce1e16c870	542	static
mbed_official	4:3ff2606d5713	543	int chk_chr (const char* str, int chr) {
mbed_official	5:b3b3370574cf	544	while (str && str != chr) str++;
mbed_official	5:b3b3370574cf	545	return *str;
emilmont	1:46ce1e16c870	546	}
emilmont	1:46ce1e16c870	547
emilmont	1:46ce1e16c870	548
emilmont	1:46ce1e16c870	549
mbed_official	5:b3b3370574cf	550
emilmont	1:46ce1e16c870	551	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	552	/* Request/Release grant to access the volume */
emilmont	1:46ce1e16c870	553	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	554	#if _FS_REENTRANT
emilmont	1:46ce1e16c870	555	static
emilmont	1:46ce1e16c870	556	int lock_fs (
mbed_official	5:b3b3370574cf	557	FATFS* fs /* File system object */
emilmont	1:46ce1e16c870	558	)
emilmont	1:46ce1e16c870	559	{
mbed_official	5:b3b3370574cf	560	return ff_req_grant(fs->sobj);
emilmont	1:46ce1e16c870	561	}
emilmont	1:46ce1e16c870	562
emilmont	1:46ce1e16c870	563
emilmont	1:46ce1e16c870	564	static
emilmont	1:46ce1e16c870	565	void unlock_fs (
mbed_official	5:b3b3370574cf	566	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	567	FRESULT res /* Result code to be returned */
emilmont	1:46ce1e16c870	568	)
emilmont	1:46ce1e16c870	569	{
mbed_official	5:b3b3370574cf	570	if (fs &&
mbed_official	5:b3b3370574cf	571	res != FR_NOT_ENABLED &&
mbed_official	5:b3b3370574cf	572	res != FR_INVALID_DRIVE &&
mbed_official	5:b3b3370574cf	573	res != FR_INVALID_OBJECT &&
mbed_official	5:b3b3370574cf	574	res != FR_TIMEOUT) {
mbed_official	5:b3b3370574cf	575	ff_rel_grant(fs->sobj);
mbed_official	5:b3b3370574cf	576	}
emilmont	1:46ce1e16c870	577	}
emilmont	1:46ce1e16c870	578	#endif
emilmont	1:46ce1e16c870	579
emilmont	1:46ce1e16c870	580
emilmont	1:46ce1e16c870	581
mbed_official	5:b3b3370574cf	582
emilmont	1:46ce1e16c870	583	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	584	/* File lock control functions */
emilmont	1:46ce1e16c870	585	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	586	#if _FS_LOCK
emilmont	1:46ce1e16c870	587
emilmont	1:46ce1e16c870	588	static
mbed_official	5:b3b3370574cf	589	FRESULT chk_lock ( /* Check if the file can be accessed */
mbed_official	5:b3b3370574cf	590	FATFS_DIR* dp, /* Directory object pointing the file to be checked */
mbed_official	5:b3b3370574cf	591	int acc /* Desired access type (0:Read, 1:Write, 2:Delete/Rename) */
emilmont	1:46ce1e16c870	592	)
emilmont	1:46ce1e16c870	593	{
mbed_official	5:b3b3370574cf	594	UINT i, be;
mbed_official	5:b3b3370574cf	595
mbed_official	5:b3b3370574cf	596	/* Search file semaphore table */
mbed_official	5:b3b3370574cf	597	for (i = be = 0; i < _FS_LOCK; i++) {
mbed_official	5:b3b3370574cf	598	if (Files[i].fs) { /* Existing entry */
mbed_official	5:b3b3370574cf	599	if (Files[i].fs == dp->fs && /* Check if the object matched with an open object */
mbed_official	5:b3b3370574cf	600	Files[i].clu == dp->sclust &&
mbed_official	5:b3b3370574cf	601	Files[i].idx == dp->index) break;
mbed_official	5:b3b3370574cf	602	} else { /* Blank entry */
mbed_official	5:b3b3370574cf	603	be = 1;
mbed_official	5:b3b3370574cf	604	}
mbed_official	5:b3b3370574cf	605	}
mbed_official	5:b3b3370574cf	606	if (i == _FS_LOCK) /* The object is not opened */
mbed_official	5:b3b3370574cf	607	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new object? */
mbed_official	5:b3b3370574cf	608
mbed_official	5:b3b3370574cf	609	/* The object has been opened. Reject any open against writing file and all write mode open */
mbed_official	5:b3b3370574cf	610	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
emilmont	1:46ce1e16c870	611	}
emilmont	1:46ce1e16c870	612
emilmont	1:46ce1e16c870	613
emilmont	1:46ce1e16c870	614	static
mbed_official	5:b3b3370574cf	615	int enq_lock (void) /* Check if an entry is available for a new object */
emilmont	1:46ce1e16c870	616	{
mbed_official	5:b3b3370574cf	617	UINT i;
mbed_official	5:b3b3370574cf	618
mbed_official	5:b3b3370574cf	619	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mbed_official	5:b3b3370574cf	620	return (i == _FS_LOCK) ? 0 : 1;
emilmont	1:46ce1e16c870	621	}
emilmont	1:46ce1e16c870	622
emilmont	1:46ce1e16c870	623
emilmont	1:46ce1e16c870	624	static
mbed_official	5:b3b3370574cf	625	UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */
mbed_official	5:b3b3370574cf	626	FATFS_DIR* dp, /* Directory object pointing the file to register or increment */
mbed_official	5:b3b3370574cf	627	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
emilmont	1:46ce1e16c870	628	)
emilmont	1:46ce1e16c870	629	{
mbed_official	5:b3b3370574cf	630	UINT i;
mbed_official	5:b3b3370574cf	631
mbed_official	5:b3b3370574cf	632
mbed_official	5:b3b3370574cf	633	for (i = 0; i < _FS_LOCK; i++) { /* Find the object */
mbed_official	5:b3b3370574cf	634	if (Files[i].fs == dp->fs &&
mbed_official	5:b3b3370574cf	635	Files[i].clu == dp->sclust &&
mbed_official	5:b3b3370574cf	636	Files[i].idx == dp->index) break;
mbed_official	5:b3b3370574cf	637	}
mbed_official	5:b3b3370574cf	638
mbed_official	5:b3b3370574cf	639	if (i == _FS_LOCK) { /* Not opened. Register it as new. */
mbed_official	5:b3b3370574cf	640	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mbed_official	5:b3b3370574cf	641	if (i == _FS_LOCK) return 0; /* No free entry to register (int err) */
mbed_official	5:b3b3370574cf	642	Files[i].fs = dp->fs;
mbed_official	5:b3b3370574cf	643	Files[i].clu = dp->sclust;
mbed_official	5:b3b3370574cf	644	Files[i].idx = dp->index;
mbed_official	5:b3b3370574cf	645	Files[i].ctr = 0;
mbed_official	5:b3b3370574cf	646	}
mbed_official	5:b3b3370574cf	647
mbed_official	5:b3b3370574cf	648	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
mbed_official	5:b3b3370574cf	649
mbed_official	5:b3b3370574cf	650	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
mbed_official	5:b3b3370574cf	651
mbed_official	5:b3b3370574cf	652	return i + 1;
emilmont	1:46ce1e16c870	653	}
emilmont	1:46ce1e16c870	654
emilmont	1:46ce1e16c870	655
emilmont	1:46ce1e16c870	656	static
mbed_official	5:b3b3370574cf	657	FRESULT dec_lock ( /* Decrement object open counter */
mbed_official	5:b3b3370574cf	658	UINT i /* Semaphore index (1..) */
emilmont	1:46ce1e16c870	659	)
emilmont	1:46ce1e16c870	660	{
mbed_official	5:b3b3370574cf	661	WORD n;
mbed_official	5:b3b3370574cf	662	FRESULT res;
mbed_official	5:b3b3370574cf	663
mbed_official	5:b3b3370574cf	664
mbed_official	5:b3b3370574cf	665	if (--i < _FS_LOCK) { /* Shift index number origin from 0 */
mbed_official	5:b3b3370574cf	666	n = Files[i].ctr;
mbed_official	5:b3b3370574cf	667	if (n == 0x100) n = 0; /* If write mode open, delete the entry */
mbed_official	5:b3b3370574cf	668	if (n) n--; /* Decrement read mode open count */
mbed_official	5:b3b3370574cf	669	Files[i].ctr = n;
mbed_official	5:b3b3370574cf	670	if (!n) Files[i].fs = 0; /* Delete the entry if open count gets zero */
mbed_official	5:b3b3370574cf	671	res = FR_OK;
mbed_official	5:b3b3370574cf	672	} else {
mbed_official	5:b3b3370574cf	673	res = FR_INT_ERR; /* Invalid index nunber */
mbed_official	5:b3b3370574cf	674	}
mbed_official	5:b3b3370574cf	675	return res;
emilmont	1:46ce1e16c870	676	}
emilmont	1:46ce1e16c870	677
emilmont	1:46ce1e16c870	678
emilmont	1:46ce1e16c870	679	static
mbed_official	5:b3b3370574cf	680	void clear_lock ( /* Clear lock entries of the volume */
mbed_official	5:b3b3370574cf	681	FATFS *fs
emilmont	1:46ce1e16c870	682	)
emilmont	1:46ce1e16c870	683	{
mbed_official	5:b3b3370574cf	684	UINT i;
mbed_official	5:b3b3370574cf	685
mbed_official	5:b3b3370574cf	686	for (i = 0; i < _FS_LOCK; i++) {
mbed_official	5:b3b3370574cf	687	if (Files[i].fs == fs) Files[i].fs = 0;
mbed_official	5:b3b3370574cf	688	}
emilmont	1:46ce1e16c870	689	}
emilmont	1:46ce1e16c870	690	#endif
emilmont	1:46ce1e16c870	691
emilmont	1:46ce1e16c870	692
emilmont	1:46ce1e16c870	693
mbed_official	5:b3b3370574cf	694
emilmont	1:46ce1e16c870	695	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	696	/* Move/Flush disk access window in the file system object */
emilmont	1:46ce1e16c870	697	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	698	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	699	static
mbed_official	6:a5fcdbf92056	700	FRESULT sync_window ( /* FR_OK:succeeded, !=0:error */
mbed_official	5:b3b3370574cf	701	FATFS* fs /* File system object */
mbed_official	5:b3b3370574cf	702	)
mbed_official	5:b3b3370574cf	703	{
mbed_official	5:b3b3370574cf	704	DWORD wsect;
mbed_official	5:b3b3370574cf	705	UINT nf;
mbed_official	5:b3b3370574cf	706	FRESULT res = FR_OK;
mbed_official	5:b3b3370574cf	707
mbed_official	5:b3b3370574cf	708
mbed_official	5:b3b3370574cf	709	if (fs->wflag) { /* Write back the sector if it is dirty */
mbed_official	5:b3b3370574cf	710	wsect = fs->winsect; /* Current sector number */
mbed_official	5:b3b3370574cf	711	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK) {
mbed_official	5:b3b3370574cf	712	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	713	} else {
mbed_official	5:b3b3370574cf	714	fs->wflag = 0;
mbed_official	5:b3b3370574cf	715	if (wsect - fs->fatbase < fs->fsize) { /* Is it in the FAT area? */
mbed_official	5:b3b3370574cf	716	for (nf = fs->n_fats; nf >= 2; nf--) { /* Reflect the change to all FAT copies */
mbed_official	5:b3b3370574cf	717	wsect += fs->fsize;
mbed_official	5:b3b3370574cf	718	disk_write(fs->drv, fs->win, wsect, 1);
mbed_official	5:b3b3370574cf	719	}
mbed_official	5:b3b3370574cf	720	}
mbed_official	5:b3b3370574cf	721	}
mbed_official	5:b3b3370574cf	722	}
mbed_official	5:b3b3370574cf	723	return res;
mbed_official	5:b3b3370574cf	724	}
mbed_official	5:b3b3370574cf	725	#endif
mbed_official	5:b3b3370574cf	726
emilmont	1:46ce1e16c870	727
emilmont	1:46ce1e16c870	728	static
mbed_official	6:a5fcdbf92056	729	FRESULT move_window ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	5:b3b3370574cf	730	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	731	DWORD sector /* Sector number to make appearance in the fs->win[] */
mbed_official	5:b3b3370574cf	732	)
emilmont	1:46ce1e16c870	733	{
mbed_official	5:b3b3370574cf	734	FRESULT res = FR_OK;
mbed_official	5:b3b3370574cf	735
mbed_official	5:b3b3370574cf	736
mbed_official	5:b3b3370574cf	737	if (sector != fs->winsect) { /* Window offset changed? */
emilmont	1:46ce1e16c870	738	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	739	res = sync_window(fs); /* Write-back changes */
emilmont	1:46ce1e16c870	740	#endif
mbed_official	5:b3b3370574cf	741	if (res == FR_OK) { /* Fill sector window with new data */
mbed_official	5:b3b3370574cf	742	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK) {
mbed_official	5:b3b3370574cf	743	sector = 0xFFFFFFFF; /* Invalidate window if data is not reliable */
mbed_official	5:b3b3370574cf	744	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	745	}
mbed_official	5:b3b3370574cf	746	fs->winsect = sector;
mbed_official	5:b3b3370574cf	747	}
mbed_official	5:b3b3370574cf	748	}
mbed_official	5:b3b3370574cf	749	return res;
emilmont	1:46ce1e16c870	750	}
emilmont	1:46ce1e16c870	751
emilmont	1:46ce1e16c870	752
emilmont	1:46ce1e16c870	753
emilmont	1:46ce1e16c870	754
emilmont	1:46ce1e16c870	755	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	756	/* Synchronize file system and strage device */
emilmont	1:46ce1e16c870	757	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	758	#if !_FS_READONLY
emilmont	1:46ce1e16c870	759	static
mbed_official	6:a5fcdbf92056	760	FRESULT sync_fs ( /* FR_OK:succeeded, !=0:error */
mbed_official	5:b3b3370574cf	761	FATFS* fs /* File system object */
emilmont	1:46ce1e16c870	762	)
emilmont	1:46ce1e16c870	763	{
mbed_official	5:b3b3370574cf	764	FRESULT res;
mbed_official	5:b3b3370574cf	765
mbed_official	5:b3b3370574cf	766
mbed_official	5:b3b3370574cf	767	res = sync_window(fs);
mbed_official	5:b3b3370574cf	768	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	769	/* Update FSInfo sector if needed */
mbed_official	5:b3b3370574cf	770	if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) {
mbed_official	6:a5fcdbf92056	771	/* Create FSInfo structure */
mbed_official	5:b3b3370574cf	772	mem_set(fs->win, 0, SS(fs));
mbed_official	5:b3b3370574cf	773	ST_WORD(fs->win + BS_55AA, 0xAA55);
mbed_official	5:b3b3370574cf	774	ST_DWORD(fs->win + FSI_LeadSig, 0x41615252);
mbed_official	5:b3b3370574cf	775	ST_DWORD(fs->win + FSI_StrucSig, 0x61417272);
mbed_official	5:b3b3370574cf	776	ST_DWORD(fs->win + FSI_Free_Count, fs->free_clust);
mbed_official	5:b3b3370574cf	777	ST_DWORD(fs->win + FSI_Nxt_Free, fs->last_clust);
mbed_official	6:a5fcdbf92056	778	/* Write it into the FSInfo sector */
mbed_official	5:b3b3370574cf	779	fs->winsect = fs->volbase + 1;
mbed_official	5:b3b3370574cf	780	disk_write(fs->drv, fs->win, fs->winsect, 1);
mbed_official	5:b3b3370574cf	781	fs->fsi_flag = 0;
mbed_official	5:b3b3370574cf	782	}
mbed_official	5:b3b3370574cf	783	/* Make sure that no pending write process in the physical drive */
mbed_official	5:b3b3370574cf	784	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
mbed_official	5:b3b3370574cf	785	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	786	}
mbed_official	5:b3b3370574cf	787
mbed_official	5:b3b3370574cf	788	return res;
emilmont	1:46ce1e16c870	789	}
emilmont	1:46ce1e16c870	790	#endif
emilmont	1:46ce1e16c870	791
emilmont	1:46ce1e16c870	792
emilmont	1:46ce1e16c870	793
emilmont	1:46ce1e16c870	794
emilmont	1:46ce1e16c870	795	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	796	/* Get sector# from cluster# */
emilmont	1:46ce1e16c870	797	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	798	/* Hidden API for hacks and disk tools */
mbed_official	5:b3b3370574cf	799
mbed_official	6:a5fcdbf92056	800	DWORD clust2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */
mbed_official	5:b3b3370574cf	801	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	802	DWORD clst /* Cluster# to be converted */
emilmont	1:46ce1e16c870	803	)
emilmont	1:46ce1e16c870	804	{
mbed_official	5:b3b3370574cf	805	clst -= 2;
mbed_official	5:b3b3370574cf	806	if (clst >= fs->n_fatent - 2) return 0; /* Invalid cluster# */
mbed_official	5:b3b3370574cf	807	return clst * fs->csize + fs->database;
emilmont	1:46ce1e16c870	808	}
emilmont	1:46ce1e16c870	809
emilmont	1:46ce1e16c870	810
emilmont	1:46ce1e16c870	811
emilmont	1:46ce1e16c870	812
emilmont	1:46ce1e16c870	813	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	814	/* FAT access - Read value of a FAT entry */
emilmont	1:46ce1e16c870	815	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	816	/* Hidden API for hacks and disk tools */
mbed_official	5:b3b3370574cf	817
mbed_official	5:b3b3370574cf	818	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluster status */
mbed_official	5:b3b3370574cf	819	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	820	DWORD clst /* FAT index number (cluster number) to get the value */
emilmont	1:46ce1e16c870	821	)
emilmont	1:46ce1e16c870	822	{
mbed_official	5:b3b3370574cf	823	UINT wc, bc;
mbed_official	5:b3b3370574cf	824	BYTE *p;
mbed_official	5:b3b3370574cf	825	DWORD val;
mbed_official	5:b3b3370574cf	826
mbed_official	5:b3b3370574cf	827
mbed_official	6:a5fcdbf92056	828	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
mbed_official	5:b3b3370574cf	829	val = 1; /* Internal error */
mbed_official	5:b3b3370574cf	830
mbed_official	5:b3b3370574cf	831	} else {
mbed_official	5:b3b3370574cf	832	val = 0xFFFFFFFF; /* Default value falls on disk error */
mbed_official	5:b3b3370574cf	833
mbed_official	5:b3b3370574cf	834	switch (fs->fs_type) {
mbed_official	5:b3b3370574cf	835	case FS_FAT12 :
mbed_official	5:b3b3370574cf	836	bc = (UINT)clst; bc += bc / 2;
mbed_official	5:b3b3370574cf	837	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
mbed_official	5:b3b3370574cf	838	wc = fs->win[bc++ % SS(fs)];
mbed_official	5:b3b3370574cf	839	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
mbed_official	5:b3b3370574cf	840	wc \|= fs->win[bc % SS(fs)] << 8;
mbed_official	5:b3b3370574cf	841	val = clst & 1 ? wc >> 4 : (wc & 0xFFF);
mbed_official	5:b3b3370574cf	842	break;
mbed_official	5:b3b3370574cf	843
mbed_official	5:b3b3370574cf	844	case FS_FAT16 :
mbed_official	5:b3b3370574cf	845	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break;
mbed_official	5:b3b3370574cf	846	p = &fs->win[clst * 2 % SS(fs)];
mbed_official	5:b3b3370574cf	847	val = LD_WORD(p);
mbed_official	5:b3b3370574cf	848	break;
mbed_official	5:b3b3370574cf	849
mbed_official	5:b3b3370574cf	850	case FS_FAT32 :
mbed_official	5:b3b3370574cf	851	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;
mbed_official	5:b3b3370574cf	852	p = &fs->win[clst * 4 % SS(fs)];
mbed_official	5:b3b3370574cf	853	val = LD_DWORD(p) & 0x0FFFFFFF;
mbed_official	5:b3b3370574cf	854	break;
mbed_official	5:b3b3370574cf	855
mbed_official	5:b3b3370574cf	856	default:
mbed_official	5:b3b3370574cf	857	val = 1; /* Internal error */
mbed_official	5:b3b3370574cf	858	}
mbed_official	5:b3b3370574cf	859	}
mbed_official	5:b3b3370574cf	860
mbed_official	5:b3b3370574cf	861	return val;
emilmont	1:46ce1e16c870	862	}
emilmont	1:46ce1e16c870	863
emilmont	1:46ce1e16c870	864
emilmont	1:46ce1e16c870	865
emilmont	1:46ce1e16c870	866
emilmont	1:46ce1e16c870	867	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	868	/* FAT access - Change value of a FAT entry */
emilmont	1:46ce1e16c870	869	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	870	/* Hidden API for hacks and disk tools */
mbed_official	5:b3b3370574cf	871
emilmont	1:46ce1e16c870	872	#if !_FS_READONLY
mbed_official	6:a5fcdbf92056	873	FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	6:a5fcdbf92056	874	FATFS* fs, /* File system object */
mbed_official	6:a5fcdbf92056	875	DWORD clst, /* FAT index number (cluster number) to be changed */
mbed_official	6:a5fcdbf92056	876	DWORD val /* New value to be set to the entry */
emilmont	1:46ce1e16c870	877	)
emilmont	1:46ce1e16c870	878	{
mbed_official	5:b3b3370574cf	879	UINT bc;
mbed_official	5:b3b3370574cf	880	BYTE *p;
mbed_official	5:b3b3370574cf	881	FRESULT res;
mbed_official	5:b3b3370574cf	882
mbed_official	5:b3b3370574cf	883
mbed_official	6:a5fcdbf92056	884	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
mbed_official	5:b3b3370574cf	885	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	886
mbed_official	5:b3b3370574cf	887	} else {
mbed_official	5:b3b3370574cf	888	switch (fs->fs_type) {
mbed_official	5:b3b3370574cf	889	case FS_FAT12 :
mbed_official	5:b3b3370574cf	890	bc = (UINT)clst; bc += bc / 2;
mbed_official	5:b3b3370574cf	891	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mbed_official	5:b3b3370574cf	892	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	893	p = &fs->win[bc++ % SS(fs)];
mbed_official	5:b3b3370574cf	894	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
mbed_official	5:b3b3370574cf	895	fs->wflag = 1;
mbed_official	5:b3b3370574cf	896	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mbed_official	5:b3b3370574cf	897	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	898	p = &fs->win[bc % SS(fs)];
mbed_official	5:b3b3370574cf	899	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
mbed_official	5:b3b3370574cf	900	fs->wflag = 1;
mbed_official	5:b3b3370574cf	901	break;
mbed_official	5:b3b3370574cf	902
mbed_official	5:b3b3370574cf	903	case FS_FAT16 :
mbed_official	5:b3b3370574cf	904	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
mbed_official	5:b3b3370574cf	905	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	906	p = &fs->win[clst * 2 % SS(fs)];
mbed_official	5:b3b3370574cf	907	ST_WORD(p, (WORD)val);
mbed_official	5:b3b3370574cf	908	fs->wflag = 1;
mbed_official	5:b3b3370574cf	909	break;
mbed_official	5:b3b3370574cf	910
mbed_official	5:b3b3370574cf	911	case FS_FAT32 :
mbed_official	5:b3b3370574cf	912	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
mbed_official	5:b3b3370574cf	913	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	914	p = &fs->win[clst * 4 % SS(fs)];
mbed_official	5:b3b3370574cf	915	val \|= LD_DWORD(p) & 0xF0000000;
mbed_official	5:b3b3370574cf	916	ST_DWORD(p, val);
mbed_official	5:b3b3370574cf	917	fs->wflag = 1;
mbed_official	5:b3b3370574cf	918	break;
mbed_official	5:b3b3370574cf	919
mbed_official	5:b3b3370574cf	920	default :
mbed_official	5:b3b3370574cf	921	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	922	}
mbed_official	5:b3b3370574cf	923	}
mbed_official	5:b3b3370574cf	924
mbed_official	5:b3b3370574cf	925	return res;
emilmont	1:46ce1e16c870	926	}
emilmont	1:46ce1e16c870	927	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	928
emilmont	1:46ce1e16c870	929
emilmont	1:46ce1e16c870	930
emilmont	1:46ce1e16c870	931
emilmont	1:46ce1e16c870	932	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	933	/* FAT handling - Remove a cluster chain */
emilmont	1:46ce1e16c870	934	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	935	#if !_FS_READONLY
emilmont	1:46ce1e16c870	936	static
mbed_official	6:a5fcdbf92056	937	FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	5:b3b3370574cf	938	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	939	DWORD clst /* Cluster# to remove a chain from */
emilmont	1:46ce1e16c870	940	)
emilmont	1:46ce1e16c870	941	{
mbed_official	5:b3b3370574cf	942	FRESULT res;
mbed_official	5:b3b3370574cf	943	DWORD nxt;
mbed_official	5:b3b3370574cf	944	#if _USE_TRIM
mbed_official	5:b3b3370574cf	945	DWORD scl = clst, ecl = clst, rt[2];
emilmont	1:46ce1e16c870	946	#endif
emilmont	1:46ce1e16c870	947
mbed_official	6:a5fcdbf92056	948	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
mbed_official	5:b3b3370574cf	949	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	950
mbed_official	5:b3b3370574cf	951	} else {
mbed_official	5:b3b3370574cf	952	res = FR_OK;
mbed_official	5:b3b3370574cf	953	while (clst < fs->n_fatent) { /* Not a last link? */
mbed_official	5:b3b3370574cf	954	nxt = get_fat(fs, clst); /* Get cluster status */
mbed_official	5:b3b3370574cf	955	if (nxt == 0) break; /* Empty cluster? */
mbed_official	5:b3b3370574cf	956	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
mbed_official	5:b3b3370574cf	957	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
mbed_official	5:b3b3370574cf	958	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
mbed_official	5:b3b3370574cf	959	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	960	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSINFO */
mbed_official	5:b3b3370574cf	961	fs->free_clust++;
mbed_official	5:b3b3370574cf	962	fs->fsi_flag \|= 1;
mbed_official	5:b3b3370574cf	963	}
mbed_official	5:b3b3370574cf	964	#if _USE_TRIM
mbed_official	5:b3b3370574cf	965	if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
mbed_official	5:b3b3370574cf	966	ecl = nxt;
mbed_official	5:b3b3370574cf	967	} else { /* End of contiguous clusters */
mbed_official	5:b3b3370574cf	968	rt[0] = clust2sect(fs, scl); /* Start sector */
mbed_official	5:b3b3370574cf	969	rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
mbed_official	5:b3b3370574cf	970	disk_ioctl(fs->drv, CTRL_TRIM, rt); /* Erase the block */
mbed_official	5:b3b3370574cf	971	scl = ecl = nxt;
mbed_official	5:b3b3370574cf	972	}
emilmont	1:46ce1e16c870	973	#endif
mbed_official	5:b3b3370574cf	974	clst = nxt; /* Next cluster */
mbed_official	5:b3b3370574cf	975	}
mbed_official	5:b3b3370574cf	976	}
mbed_official	5:b3b3370574cf	977
mbed_official	5:b3b3370574cf	978	return res;
emilmont	1:46ce1e16c870	979	}
emilmont	1:46ce1e16c870	980	#endif
emilmont	1:46ce1e16c870	981
emilmont	1:46ce1e16c870	982
emilmont	1:46ce1e16c870	983
emilmont	1:46ce1e16c870	984
emilmont	1:46ce1e16c870	985	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	986	/* FAT handling - Stretch or Create a cluster chain */
emilmont	1:46ce1e16c870	987	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	988	#if !_FS_READONLY
emilmont	1:46ce1e16c870	989	static
mbed_official	5:b3b3370574cf	990	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
mbed_official	5:b3b3370574cf	991	FATFS* fs, /* File system object */
mbed_official	6:a5fcdbf92056	992	DWORD clst /* Cluster# to stretch, 0:Create a new chain */
emilmont	1:46ce1e16c870	993	)
emilmont	1:46ce1e16c870	994	{
mbed_official	5:b3b3370574cf	995	DWORD cs, ncl, scl;
mbed_official	5:b3b3370574cf	996	FRESULT res;
mbed_official	5:b3b3370574cf	997
mbed_official	5:b3b3370574cf	998
mbed_official	5:b3b3370574cf	999	if (clst == 0) { /* Create a new chain */
mbed_official	5:b3b3370574cf	1000	scl = fs->last_clust; /* Get suggested start point */
mbed_official	5:b3b3370574cf	1001	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
mbed_official	5:b3b3370574cf	1002	}
mbed_official	5:b3b3370574cf	1003	else { /* Stretch the current chain */
mbed_official	5:b3b3370574cf	1004	cs = get_fat(fs, clst); /* Check the cluster status */
mbed_official	5:b3b3370574cf	1005	if (cs < 2) return 1; /* Invalid value */
mbed_official	5:b3b3370574cf	1006	if (cs == 0xFFFFFFFF) return cs; /* A disk error occurred */
mbed_official	5:b3b3370574cf	1007	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
mbed_official	5:b3b3370574cf	1008	scl = clst;
mbed_official	5:b3b3370574cf	1009	}
mbed_official	5:b3b3370574cf	1010
mbed_official	5:b3b3370574cf	1011	ncl = scl; /* Start cluster */
mbed_official	5:b3b3370574cf	1012	for (;;) {
mbed_official	5:b3b3370574cf	1013	ncl++; /* Next cluster */
mbed_official	5:b3b3370574cf	1014	if (ncl >= fs->n_fatent) { /* Check wrap around */
mbed_official	5:b3b3370574cf	1015	ncl = 2;
mbed_official	5:b3b3370574cf	1016	if (ncl > scl) return 0; /* No free cluster */
mbed_official	5:b3b3370574cf	1017	}
mbed_official	5:b3b3370574cf	1018	cs = get_fat(fs, ncl); /* Get the cluster status */
mbed_official	5:b3b3370574cf	1019	if (cs == 0) break; /* Found a free cluster */
mbed_official	5:b3b3370574cf	1020	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
mbed_official	5:b3b3370574cf	1021	return cs;
mbed_official	5:b3b3370574cf	1022	if (ncl == scl) return 0; /* No free cluster */
mbed_official	5:b3b3370574cf	1023	}
mbed_official	5:b3b3370574cf	1024
mbed_official	5:b3b3370574cf	1025	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
mbed_official	5:b3b3370574cf	1026	if (res == FR_OK && clst != 0) {
mbed_official	5:b3b3370574cf	1027	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
mbed_official	5:b3b3370574cf	1028	}
mbed_official	5:b3b3370574cf	1029	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1030	fs->last_clust = ncl; /* Update FSINFO */
mbed_official	5:b3b3370574cf	1031	if (fs->free_clust != 0xFFFFFFFF) {
mbed_official	5:b3b3370574cf	1032	fs->free_clust--;
mbed_official	5:b3b3370574cf	1033	fs->fsi_flag \|= 1;
mbed_official	5:b3b3370574cf	1034	}
mbed_official	5:b3b3370574cf	1035	} else {
mbed_official	5:b3b3370574cf	1036	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
mbed_official	5:b3b3370574cf	1037	}
mbed_official	5:b3b3370574cf	1038
mbed_official	5:b3b3370574cf	1039	return ncl; /* Return new cluster number or error code */
emilmont	1:46ce1e16c870	1040	}
emilmont	1:46ce1e16c870	1041	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	1042
emilmont	1:46ce1e16c870	1043
emilmont	1:46ce1e16c870	1044
mbed_official	5:b3b3370574cf	1045
emilmont	1:46ce1e16c870	1046	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1047	/* FAT handling - Convert offset into cluster with link map table */
emilmont	1:46ce1e16c870	1048	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1049
emilmont	1:46ce1e16c870	1050	#if _USE_FASTSEEK
emilmont	1:46ce1e16c870	1051	static
mbed_official	5:b3b3370574cf	1052	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
mbed_official	5:b3b3370574cf	1053	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	1054	DWORD ofs /* File offset to be converted to cluster# */
emilmont	1:46ce1e16c870	1055	)
emilmont	1:46ce1e16c870	1056	{
mbed_official	5:b3b3370574cf	1057	DWORD cl, ncl, *tbl;
mbed_official	5:b3b3370574cf	1058
mbed_official	5:b3b3370574cf	1059
mbed_official	5:b3b3370574cf	1060	tbl = fp->cltbl + 1; /* Top of CLMT */
mbed_official	5:b3b3370574cf	1061	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
mbed_official	5:b3b3370574cf	1062	for (;;) {
mbed_official	5:b3b3370574cf	1063	ncl = tbl++; / Number of cluters in the fragment */
mbed_official	5:b3b3370574cf	1064	if (!ncl) return 0; /* End of table? (error) */
mbed_official	5:b3b3370574cf	1065	if (cl < ncl) break; /* In this fragment? */
mbed_official	5:b3b3370574cf	1066	cl -= ncl; tbl++; /* Next fragment */
mbed_official	5:b3b3370574cf	1067	}
mbed_official	5:b3b3370574cf	1068	return cl + tbl; / Return the cluster number */
emilmont	1:46ce1e16c870	1069	}
mbed_official	5:b3b3370574cf	1070	#endif /* _USE_FASTSEEK */
mbed_official	5:b3b3370574cf	1071
emilmont	1:46ce1e16c870	1072
emilmont	1:46ce1e16c870	1073
emilmont	1:46ce1e16c870	1074
emilmont	1:46ce1e16c870	1075	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1076	/* Directory handling - Set directory index */
emilmont	1:46ce1e16c870	1077	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1078
emilmont	1:46ce1e16c870	1079	static
mbed_official	6:a5fcdbf92056	1080	FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	5:b3b3370574cf	1081	FATFS_DIR* dp, /* Pointer to directory object */
mbed_official	5:b3b3370574cf	1082	UINT idx /* Index of directory table */
emilmont	1:46ce1e16c870	1083	)
emilmont	1:46ce1e16c870	1084	{
mbed_official	5:b3b3370574cf	1085	DWORD clst, sect;
mbed_official	5:b3b3370574cf	1086	UINT ic;
mbed_official	5:b3b3370574cf	1087
mbed_official	5:b3b3370574cf	1088
mbed_official	5:b3b3370574cf	1089	dp->index = (WORD)idx; /* Current index */
mbed_official	5:b3b3370574cf	1090	clst = dp->sclust; /* Table start cluster (0:root) */
mbed_official	5:b3b3370574cf	1091	if (clst == 1 \|\| clst >= dp->fs->n_fatent) /* Check start cluster range */
mbed_official	5:b3b3370574cf	1092	return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1093	if (!clst && dp->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
mbed_official	5:b3b3370574cf	1094	clst = dp->fs->dirbase;
mbed_official	5:b3b3370574cf	1095
mbed_official	5:b3b3370574cf	1096	if (clst == 0) { /* Static table (root-directory in FAT12/16) */
mbed_official	5:b3b3370574cf	1097	if (idx >= dp->fs->n_rootdir) /* Is index out of range? */
mbed_official	5:b3b3370574cf	1098	return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1099	sect = dp->fs->dirbase;
mbed_official	5:b3b3370574cf	1100	}
mbed_official	5:b3b3370574cf	1101	else { /* Dynamic table (root-directory in FAT32 or sub-directory) */
mbed_official	5:b3b3370574cf	1102	ic = SS(dp->fs) / SZ_DIRE * dp->fs->csize; /* Entries per cluster */
mbed_official	5:b3b3370574cf	1103	while (idx >= ic) { /* Follow cluster chain */
mbed_official	5:b3b3370574cf	1104	clst = get_fat(dp->fs, clst); /* Get next cluster */
mbed_official	5:b3b3370574cf	1105	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
mbed_official	5:b3b3370574cf	1106	if (clst < 2 \|\| clst >= dp->fs->n_fatent) /* Reached to end of table or internal error */
mbed_official	5:b3b3370574cf	1107	return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1108	idx -= ic;
mbed_official	5:b3b3370574cf	1109	}
mbed_official	5:b3b3370574cf	1110	sect = clust2sect(dp->fs, clst);
mbed_official	5:b3b3370574cf	1111	}
mbed_official	5:b3b3370574cf	1112	dp->clust = clst; /* Current cluster# */
mbed_official	5:b3b3370574cf	1113	if (!sect) return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1114	dp->sect = sect + idx / (SS(dp->fs) / SZ_DIRE); /* Sector# of the directory entry */
mbed_official	6:a5fcdbf92056	1115	dp->dir = dp->fs->win + (idx % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Ptr to the entry in the sector */
mbed_official	5:b3b3370574cf	1116
mbed_official	5:b3b3370574cf	1117	return FR_OK;
emilmont	1:46ce1e16c870	1118	}
emilmont	1:46ce1e16c870	1119
emilmont	1:46ce1e16c870	1120
emilmont	1:46ce1e16c870	1121
emilmont	1:46ce1e16c870	1122
emilmont	1:46ce1e16c870	1123	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1124	/* Directory handling - Move directory table index next */
emilmont	1:46ce1e16c870	1125	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1126
emilmont	1:46ce1e16c870	1127	static
mbed_official	6:a5fcdbf92056	1128	FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
mbed_official	5:b3b3370574cf	1129	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1130	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
emilmont	1:46ce1e16c870	1131	)
emilmont	1:46ce1e16c870	1132	{
mbed_official	5:b3b3370574cf	1133	DWORD clst;
mbed_official	5:b3b3370574cf	1134	UINT i;
mbed_official	5:b3b3370574cf	1135	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	1136	UINT c;
mbed_official	5:b3b3370574cf	1137	#endif
mbed_official	5:b3b3370574cf	1138
mbed_official	5:b3b3370574cf	1139
mbed_official	5:b3b3370574cf	1140	i = dp->index + 1;
mbed_official	5:b3b3370574cf	1141	if (!(i & 0xFFFF) \|\| !dp->sect) /* Report EOT when index has reached 65535 */
mbed_official	5:b3b3370574cf	1142	return FR_NO_FILE;
mbed_official	5:b3b3370574cf	1143
mbed_official	5:b3b3370574cf	1144	if (!(i % (SS(dp->fs) / SZ_DIRE))) { /* Sector changed? */
mbed_official	5:b3b3370574cf	1145	dp->sect++; /* Next sector */
mbed_official	5:b3b3370574cf	1146
mbed_official	5:b3b3370574cf	1147	if (!dp->clust) { /* Static table */
mbed_official	5:b3b3370574cf	1148	if (i >= dp->fs->n_rootdir) /* Report EOT if it reached end of static table */
mbed_official	5:b3b3370574cf	1149	return FR_NO_FILE;
mbed_official	5:b3b3370574cf	1150	}
mbed_official	5:b3b3370574cf	1151	else { /* Dynamic table */
mbed_official	5:b3b3370574cf	1152	if (((i / (SS(dp->fs) / SZ_DIRE)) & (dp->fs->csize - 1)) == 0) { /* Cluster changed? */
mbed_official	5:b3b3370574cf	1153	clst = get_fat(dp->fs, dp->clust); /* Get next cluster */
mbed_official	5:b3b3370574cf	1154	if (clst <= 1) return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1155	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	1156	if (clst >= dp->fs->n_fatent) { /* If it reached end of dynamic table, */
emilmont	1:46ce1e16c870	1157	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	1158	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT */
mbed_official	5:b3b3370574cf	1159	clst = create_chain(dp->fs, dp->clust); /* Stretch cluster chain */
mbed_official	5:b3b3370574cf	1160	if (clst == 0) return FR_DENIED; /* No free cluster */
mbed_official	5:b3b3370574cf	1161	if (clst == 1) return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1162	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	1163	/* Clean-up stretched table */
mbed_official	5:b3b3370574cf	1164	if (sync_window(dp->fs)) return FR_DISK_ERR;/* Flush disk access window */
mbed_official	5:b3b3370574cf	1165	mem_set(dp->fs->win, 0, SS(dp->fs)); /* Clear window buffer */
mbed_official	5:b3b3370574cf	1166	dp->fs->winsect = clust2sect(dp->fs, clst); /* Cluster start sector */
mbed_official	5:b3b3370574cf	1167	for (c = 0; c < dp->fs->csize; c++) { /* Fill the new cluster with 0 */
mbed_official	5:b3b3370574cf	1168	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1169	if (sync_window(dp->fs)) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	1170	dp->fs->winsect++;
mbed_official	5:b3b3370574cf	1171	}
mbed_official	5:b3b3370574cf	1172	dp->fs->winsect -= c; /* Rewind window offset */
emilmont	1:46ce1e16c870	1173	#else
mbed_official	5:b3b3370574cf	1174	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT (this is to suppress warning) */
mbed_official	5:b3b3370574cf	1175	return FR_NO_FILE; /* Report EOT */
emilmont	1:46ce1e16c870	1176	#endif
mbed_official	5:b3b3370574cf	1177	}
mbed_official	5:b3b3370574cf	1178	dp->clust = clst; /* Initialize data for new cluster */
mbed_official	5:b3b3370574cf	1179	dp->sect = clust2sect(dp->fs, clst);
mbed_official	5:b3b3370574cf	1180	}
mbed_official	5:b3b3370574cf	1181	}
mbed_official	5:b3b3370574cf	1182	}
mbed_official	5:b3b3370574cf	1183
mbed_official	5:b3b3370574cf	1184	dp->index = (WORD)i; /* Current index */
mbed_official	6:a5fcdbf92056	1185	dp->dir = dp->fs->win + (i % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Current entry in the window */
mbed_official	5:b3b3370574cf	1186
mbed_official	5:b3b3370574cf	1187	return FR_OK;
emilmont	1:46ce1e16c870	1188	}
emilmont	1:46ce1e16c870	1189
emilmont	1:46ce1e16c870	1190
emilmont	1:46ce1e16c870	1191
emilmont	1:46ce1e16c870	1192
emilmont	1:46ce1e16c870	1193	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1194	/* Directory handling - Reserve directory entry */
mbed_official	5:b3b3370574cf	1195	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1196
mbed_official	5:b3b3370574cf	1197	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	1198	static
mbed_official	6:a5fcdbf92056	1199	FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	6:a5fcdbf92056	1200	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	6:a5fcdbf92056	1201	UINT nent /* Number of contiguous entries to allocate (1-21) */
mbed_official	5:b3b3370574cf	1202	)
mbed_official	5:b3b3370574cf	1203	{
mbed_official	5:b3b3370574cf	1204	FRESULT res;
mbed_official	5:b3b3370574cf	1205	UINT n;
mbed_official	5:b3b3370574cf	1206
mbed_official	5:b3b3370574cf	1207
mbed_official	5:b3b3370574cf	1208	res = dir_sdi(dp, 0);
mbed_official	5:b3b3370574cf	1209	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1210	n = 0;
mbed_official	5:b3b3370574cf	1211	do {
mbed_official	5:b3b3370574cf	1212	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1213	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1214	if (dp->dir[0] == DDEM \|\| dp->dir[0] == 0) { /* Is it a free entry? */
mbed_official	5:b3b3370574cf	1215	if (++n == nent) break; /* A block of contiguous free entries is found */
mbed_official	5:b3b3370574cf	1216	} else {
mbed_official	5:b3b3370574cf	1217	n = 0; /* Not a blank entry. Restart to search */
mbed_official	5:b3b3370574cf	1218	}
mbed_official	5:b3b3370574cf	1219	res = dir_next(dp, 1); /* Next entry with table stretch enabled */
mbed_official	5:b3b3370574cf	1220	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	1221	}
mbed_official	5:b3b3370574cf	1222	if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */
mbed_official	5:b3b3370574cf	1223	return res;
mbed_official	5:b3b3370574cf	1224	}
mbed_official	5:b3b3370574cf	1225	#endif
mbed_official	5:b3b3370574cf	1226
mbed_official	5:b3b3370574cf	1227
mbed_official	5:b3b3370574cf	1228
mbed_official	5:b3b3370574cf	1229
mbed_official	5:b3b3370574cf	1230	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1231	/* Directory handling - Load/Store start cluster number */
emilmont	1:46ce1e16c870	1232	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1233
emilmont	1:46ce1e16c870	1234	static
mbed_official	6:a5fcdbf92056	1235	DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */
mbed_official	6:a5fcdbf92056	1236	FATFS* fs, /* Pointer to the fs object */
mbed_official	6:a5fcdbf92056	1237	const BYTE* dir /* Pointer to the SFN entry */
emilmont	1:46ce1e16c870	1238	)
emilmont	1:46ce1e16c870	1239	{
mbed_official	5:b3b3370574cf	1240	DWORD cl;
mbed_official	5:b3b3370574cf	1241
mbed_official	6:a5fcdbf92056	1242	cl = LD_WORD(dir + DIR_FstClusLO);
mbed_official	5:b3b3370574cf	1243	if (fs->fs_type == FS_FAT32)
mbed_official	6:a5fcdbf92056	1244	cl \|= (DWORD)LD_WORD(dir + DIR_FstClusHI) << 16;
mbed_official	5:b3b3370574cf	1245
mbed_official	5:b3b3370574cf	1246	return cl;
emilmont	1:46ce1e16c870	1247	}
emilmont	1:46ce1e16c870	1248
emilmont	1:46ce1e16c870	1249
emilmont	1:46ce1e16c870	1250	#if !_FS_READONLY
emilmont	1:46ce1e16c870	1251	static
emilmont	1:46ce1e16c870	1252	void st_clust (
mbed_official	6:a5fcdbf92056	1253	BYTE* dir, /* Pointer to the SFN entry */
mbed_official	5:b3b3370574cf	1254	DWORD cl /* Value to be set */
emilmont	1:46ce1e16c870	1255	)
emilmont	1:46ce1e16c870	1256	{
mbed_official	6:a5fcdbf92056	1257	ST_WORD(dir + DIR_FstClusLO, cl);
mbed_official	6:a5fcdbf92056	1258	ST_WORD(dir + DIR_FstClusHI, cl >> 16);
emilmont	1:46ce1e16c870	1259	}
emilmont	1:46ce1e16c870	1260	#endif
emilmont	1:46ce1e16c870	1261
emilmont	1:46ce1e16c870	1262
emilmont	1:46ce1e16c870	1263
mbed_official	5:b3b3370574cf	1264
emilmont	1:46ce1e16c870	1265	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1266	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
emilmont	1:46ce1e16c870	1267	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1268	#if _USE_LFN
emilmont	1:46ce1e16c870	1269	static
mbed_official	5:b3b3370574cf	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 */
emilmont	1:46ce1e16c870	1271
emilmont	1:46ce1e16c870	1272
emilmont	1:46ce1e16c870	1273	static
mbed_official	6:a5fcdbf92056	1274	int cmp_lfn ( /* 1:matched, 0:not matched */
mbed_official	6:a5fcdbf92056	1275	WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */
mbed_official	6:a5fcdbf92056	1276	BYTE* dir /* Pointer to the directory entry containing the part of LFN */
emilmont	1:46ce1e16c870	1277	)
emilmont	1:46ce1e16c870	1278	{
mbed_official	5:b3b3370574cf	1279	UINT i, s;
mbed_official	5:b3b3370574cf	1280	WCHAR wc, uc;
mbed_official	5:b3b3370574cf	1281
mbed_official	5:b3b3370574cf	1282
mbed_official	6:a5fcdbf92056	1283	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
mbed_official	6:a5fcdbf92056	1284
mbed_official	6:a5fcdbf92056	1285	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
mbed_official	6:a5fcdbf92056	1286
mbed_official	6:a5fcdbf92056	1287	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
mbed_official	6:a5fcdbf92056	1288	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
mbed_official	6:a5fcdbf92056	1289	if (wc) {
mbed_official	6:a5fcdbf92056	1290	if (i >= _MAX_LFN \|\| ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) /* Compare it */
mbed_official	6:a5fcdbf92056	1291	return 0; /* Not matched */
mbed_official	6:a5fcdbf92056	1292	wc = uc;
mbed_official	5:b3b3370574cf	1293	} else {
mbed_official	6:a5fcdbf92056	1294	if (uc != 0xFFFF) return 0; /* Check filler */
mbed_official	5:b3b3370574cf	1295	}
mbed_official	6:a5fcdbf92056	1296	}
mbed_official	6:a5fcdbf92056	1297
mbed_official	6:a5fcdbf92056	1298	if ((dir[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) /* Last segment matched but different length */
mbed_official	5:b3b3370574cf	1299	return 0;
mbed_official	5:b3b3370574cf	1300
mbed_official	6:a5fcdbf92056	1301	return 1; /* The part of LFN matched */
emilmont	1:46ce1e16c870	1302	}
emilmont	1:46ce1e16c870	1303
emilmont	1:46ce1e16c870	1304
emilmont	1:46ce1e16c870	1305
emilmont	1:46ce1e16c870	1306	static
mbed_official	6:a5fcdbf92056	1307	int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */
mbed_official	6:a5fcdbf92056	1308	WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
mbed_official	6:a5fcdbf92056	1309	BYTE* dir /* Pointer to the LFN entry */
emilmont	1:46ce1e16c870	1310	)
emilmont	1:46ce1e16c870	1311	{
mbed_official	5:b3b3370574cf	1312	UINT i, s;
mbed_official	5:b3b3370574cf	1313	WCHAR wc, uc;
mbed_official	5:b3b3370574cf	1314
mbed_official	5:b3b3370574cf	1315
mbed_official	6:a5fcdbf92056	1316	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
mbed_official	6:a5fcdbf92056	1317
mbed_official	6:a5fcdbf92056	1318	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
mbed_official	6:a5fcdbf92056	1319
mbed_official	6:a5fcdbf92056	1320	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
mbed_official	6:a5fcdbf92056	1321	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
mbed_official	6:a5fcdbf92056	1322	if (wc) {
mbed_official	5:b3b3370574cf	1323	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mbed_official	5:b3b3370574cf	1324	lfnbuf[i++] = wc = uc; /* Store it */
mbed_official	5:b3b3370574cf	1325	} else {
mbed_official	5:b3b3370574cf	1326	if (uc != 0xFFFF) return 0; /* Check filler */
mbed_official	5:b3b3370574cf	1327	}
mbed_official	6:a5fcdbf92056	1328	}
mbed_official	6:a5fcdbf92056	1329
mbed_official	6:a5fcdbf92056	1330	if (dir[LDIR_Ord] & LLEF) { /* Put terminator if it is the last LFN part */
mbed_official	5:b3b3370574cf	1331	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mbed_official	5:b3b3370574cf	1332	lfnbuf[i] = 0;
mbed_official	5:b3b3370574cf	1333	}
mbed_official	5:b3b3370574cf	1334
mbed_official	6:a5fcdbf92056	1335	return 1; /* The part of LFN is valid */
emilmont	1:46ce1e16c870	1336	}
emilmont	1:46ce1e16c870	1337
emilmont	1:46ce1e16c870	1338
emilmont	1:46ce1e16c870	1339	#if !_FS_READONLY
emilmont	1:46ce1e16c870	1340	static
emilmont	1:46ce1e16c870	1341	void fit_lfn (
mbed_official	6:a5fcdbf92056	1342	const WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
mbed_official	6:a5fcdbf92056	1343	BYTE* dir, /* Pointer to the LFN entry to be processed */
mbed_official	5:b3b3370574cf	1344	BYTE ord, /* LFN order (1-20) */
mbed_official	6:a5fcdbf92056	1345	BYTE sum /* Checksum of the corresponding SFN */
emilmont	1:46ce1e16c870	1346	)
emilmont	1:46ce1e16c870	1347	{
mbed_official	5:b3b3370574cf	1348	UINT i, s;
mbed_official	5:b3b3370574cf	1349	WCHAR wc;
mbed_official	5:b3b3370574cf	1350
mbed_official	5:b3b3370574cf	1351
mbed_official	6:a5fcdbf92056	1352	dir[LDIR_Chksum] = sum; /* Set checksum */
mbed_official	6:a5fcdbf92056	1353	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
mbed_official	6:a5fcdbf92056	1354	dir[LDIR_Type] = 0;
mbed_official	6:a5fcdbf92056	1355	ST_WORD(dir + LDIR_FstClusLO, 0);
mbed_official	6:a5fcdbf92056	1356
mbed_official	6:a5fcdbf92056	1357	i = (ord - 1) * 13; /* Get offset in the LFN working buffer */
mbed_official	5:b3b3370574cf	1358	s = wc = 0;
mbed_official	5:b3b3370574cf	1359	do {
mbed_official	5:b3b3370574cf	1360	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective character */
mbed_official	6:a5fcdbf92056	1361	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
mbed_official	5:b3b3370574cf	1362	if (!wc) wc = 0xFFFF; /* Padding characters following last character */
mbed_official	5:b3b3370574cf	1363	} while (++s < 13);
mbed_official	5:b3b3370574cf	1364	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLEF; /* Bottom LFN part is the start of LFN sequence */
mbed_official	6:a5fcdbf92056	1365	dir[LDIR_Ord] = ord; /* Set the LFN order */
emilmont	1:46ce1e16c870	1366	}
emilmont	1:46ce1e16c870	1367
emilmont	1:46ce1e16c870	1368	#endif
emilmont	1:46ce1e16c870	1369	#endif
emilmont	1:46ce1e16c870	1370
emilmont	1:46ce1e16c870	1371
emilmont	1:46ce1e16c870	1372
mbed_official	5:b3b3370574cf	1373
emilmont	1:46ce1e16c870	1374	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1375	/* Create numbered name */
emilmont	1:46ce1e16c870	1376	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1377	#if _USE_LFN
mbed_official	5:b3b3370574cf	1378	static
emilmont	1:46ce1e16c870	1379	void gen_numname (
mbed_official	5:b3b3370574cf	1380	BYTE* dst, /* Pointer to the buffer to store numbered SFN */
mbed_official	5:b3b3370574cf	1381	const BYTE* src, /* Pointer to SFN */
mbed_official	5:b3b3370574cf	1382	const WCHAR* lfn, /* Pointer to LFN */
mbed_official	5:b3b3370574cf	1383	UINT seq /* Sequence number */
emilmont	1:46ce1e16c870	1384	)
emilmont	1:46ce1e16c870	1385	{
mbed_official	5:b3b3370574cf	1386	BYTE ns[8], c;
mbed_official	5:b3b3370574cf	1387	UINT i, j;
mbed_official	5:b3b3370574cf	1388	WCHAR wc;
mbed_official	5:b3b3370574cf	1389	DWORD sr;
mbed_official	5:b3b3370574cf	1390
mbed_official	5:b3b3370574cf	1391
mbed_official	5:b3b3370574cf	1392	mem_cpy(dst, src, 11);
mbed_official	5:b3b3370574cf	1393
mbed_official	5:b3b3370574cf	1394	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
mbed_official	5:b3b3370574cf	1395	sr = seq;
mbed_official	5:b3b3370574cf	1396	while (lfn) { / Create a CRC */
mbed_official	5:b3b3370574cf	1397	wc = *lfn++;
mbed_official	5:b3b3370574cf	1398	for (i = 0; i < 16; i++) {
mbed_official	5:b3b3370574cf	1399	sr = (sr << 1) + (wc & 1);
mbed_official	5:b3b3370574cf	1400	wc >>= 1;
mbed_official	5:b3b3370574cf	1401	if (sr & 0x10000) sr ^= 0x11021;
mbed_official	5:b3b3370574cf	1402	}
mbed_official	5:b3b3370574cf	1403	}
mbed_official	5:b3b3370574cf	1404	seq = (UINT)sr;
mbed_official	5:b3b3370574cf	1405	}
mbed_official	5:b3b3370574cf	1406
mbed_official	5:b3b3370574cf	1407	/* itoa (hexdecimal) */
mbed_official	5:b3b3370574cf	1408	i = 7;
mbed_official	5:b3b3370574cf	1409	do {
mbed_official	5:b3b3370574cf	1410	c = (seq % 16) + '0';
mbed_official	5:b3b3370574cf	1411	if (c > '9') c += 7;
mbed_official	5:b3b3370574cf	1412	ns[i--] = c;
mbed_official	5:b3b3370574cf	1413	seq /= 16;
mbed_official	5:b3b3370574cf	1414	} while (seq);
mbed_official	5:b3b3370574cf	1415	ns[i] = '~';
mbed_official	5:b3b3370574cf	1416
mbed_official	5:b3b3370574cf	1417	/* Append the number */
mbed_official	5:b3b3370574cf	1418	for (j = 0; j < i && dst[j] != ' '; j++) {
mbed_official	5:b3b3370574cf	1419	if (IsDBCS1(dst[j])) {
mbed_official	5:b3b3370574cf	1420	if (j == i - 1) break;
mbed_official	5:b3b3370574cf	1421	j++;
mbed_official	5:b3b3370574cf	1422	}
mbed_official	5:b3b3370574cf	1423	}
mbed_official	5:b3b3370574cf	1424	do {
mbed_official	5:b3b3370574cf	1425	dst[j++] = (i < 8) ? ns[i++] : ' ';
mbed_official	5:b3b3370574cf	1426	} while (j < 8);
emilmont	1:46ce1e16c870	1427	}
emilmont	1:46ce1e16c870	1428	#endif
emilmont	1:46ce1e16c870	1429
emilmont	1:46ce1e16c870	1430
emilmont	1:46ce1e16c870	1431
emilmont	1:46ce1e16c870	1432
emilmont	1:46ce1e16c870	1433	/-----------------------------------------------------------------------/
mbed_official	6:a5fcdbf92056	1434	/* Calculate checksum of an SFN entry */
emilmont	1:46ce1e16c870	1435	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1436	#if _USE_LFN
emilmont	1:46ce1e16c870	1437	static
emilmont	1:46ce1e16c870	1438	BYTE sum_sfn (
mbed_official	6:a5fcdbf92056	1439	const BYTE* dir /* Pointer to the SFN entry */
emilmont	1:46ce1e16c870	1440	)
emilmont	1:46ce1e16c870	1441	{
mbed_official	5:b3b3370574cf	1442	BYTE sum = 0;
mbed_official	5:b3b3370574cf	1443	UINT n = 11;
mbed_official	5:b3b3370574cf	1444
mbed_official	6:a5fcdbf92056	1445	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
mbed_official	5:b3b3370574cf	1446	return sum;
emilmont	1:46ce1e16c870	1447	}
emilmont	1:46ce1e16c870	1448	#endif
emilmont	1:46ce1e16c870	1449
emilmont	1:46ce1e16c870	1450
emilmont	1:46ce1e16c870	1451
emilmont	1:46ce1e16c870	1452
emilmont	1:46ce1e16c870	1453	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1454	/* Directory handling - Find an object in the directory */
emilmont	1:46ce1e16c870	1455	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1456
emilmont	1:46ce1e16c870	1457	static
mbed_official	6:a5fcdbf92056	1458	FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	5:b3b3370574cf	1459	FATFS_DIR* dp /* Pointer to the directory object linked to the file name */
emilmont	1:46ce1e16c870	1460	)
emilmont	1:46ce1e16c870	1461	{
mbed_official	5:b3b3370574cf	1462	FRESULT res;
mbed_official	6:a5fcdbf92056	1463	BYTE c, *dir;
emilmont	1:46ce1e16c870	1464	#if _USE_LFN
mbed_official	5:b3b3370574cf	1465	BYTE a, ord, sum;
emilmont	1:46ce1e16c870	1466	#endif
emilmont	1:46ce1e16c870	1467
mbed_official	5:b3b3370574cf	1468	res = dir_sdi(dp, 0); /* Rewind directory object */
mbed_official	5:b3b3370574cf	1469	if (res != FR_OK) return res;
emilmont	1:46ce1e16c870	1470
emilmont	1:46ce1e16c870	1471	#if _USE_LFN
mbed_official	5:b3b3370574cf	1472	ord = sum = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
emilmont	1:46ce1e16c870	1473	#endif
mbed_official	5:b3b3370574cf	1474	do {
mbed_official	5:b3b3370574cf	1475	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1476	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1477	dir = dp->dir; /* Ptr to the directory entry of current index */
mbed_official	6:a5fcdbf92056	1478	c = dir[DIR_Name];
mbed_official	5:b3b3370574cf	1479	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mbed_official	5:b3b3370574cf	1480	#if _USE_LFN /* LFN configuration */
mbed_official	6:a5fcdbf92056	1481	a = dir[DIR_Attr] & AM_MASK;
mbed_official	5:b3b3370574cf	1482	if (c == DDEM \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
mbed_official	5:b3b3370574cf	1483	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
mbed_official	5:b3b3370574cf	1484	} else {
mbed_official	5:b3b3370574cf	1485	if (a == AM_LFN) { /* An LFN entry is found */
mbed_official	5:b3b3370574cf	1486	if (dp->lfn) {
mbed_official	5:b3b3370574cf	1487	if (c & LLEF) { /* Is it start of LFN sequence? */
mbed_official	6:a5fcdbf92056	1488	sum = dir[LDIR_Chksum];
mbed_official	5:b3b3370574cf	1489	c &= ~LLEF; ord = c; /* LFN start order */
mbed_official	5:b3b3370574cf	1490	dp->lfn_idx = dp->index; /* Start index of LFN */
mbed_official	5:b3b3370574cf	1491	}
mbed_official	5:b3b3370574cf	1492	/* Check validity of the LFN entry and compare it with given name */
mbed_official	6:a5fcdbf92056	1493	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
mbed_official	5:b3b3370574cf	1494	}
mbed_official	5:b3b3370574cf	1495	} else { /* An SFN entry is found */
mbed_official	6:a5fcdbf92056	1496	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
mbed_official	6:a5fcdbf92056	1497	if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(dir, dp->fn, 11)) break; /* SFN matched? */
mbed_official	5:b3b3370574cf	1498	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
mbed_official	5:b3b3370574cf	1499	}
mbed_official	5:b3b3370574cf	1500	}
mbed_official	5:b3b3370574cf	1501	#else /* Non LFN configuration */
mbed_official	6:a5fcdbf92056	1502	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dp->fn, 11)) /* Is it a valid entry? */
mbed_official	5:b3b3370574cf	1503	break;
emilmont	1:46ce1e16c870	1504	#endif
mbed_official	5:b3b3370574cf	1505	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1506	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	1507
mbed_official	5:b3b3370574cf	1508	return res;
emilmont	1:46ce1e16c870	1509	}
emilmont	1:46ce1e16c870	1510
emilmont	1:46ce1e16c870	1511
emilmont	1:46ce1e16c870	1512
emilmont	1:46ce1e16c870	1513
emilmont	1:46ce1e16c870	1514	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1515	/* Read an object from the directory */
emilmont	1:46ce1e16c870	1516	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1517	#if _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2
emilmont	1:46ce1e16c870	1518	static
emilmont	1:46ce1e16c870	1519	FRESULT dir_read (
mbed_official	5:b3b3370574cf	1520	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1521	int vol /* Filtered by 0:file/directory or 1:volume label */
emilmont	1:46ce1e16c870	1522	)
emilmont	1:46ce1e16c870	1523	{
mbed_official	5:b3b3370574cf	1524	FRESULT res;
mbed_official	6:a5fcdbf92056	1525	BYTE a, c, *dir;
emilmont	1:46ce1e16c870	1526	#if _USE_LFN
mbed_official	5:b3b3370574cf	1527	BYTE ord = 0xFF, sum = 0xFF;
emilmont	1:46ce1e16c870	1528	#endif
emilmont	1:46ce1e16c870	1529
mbed_official	5:b3b3370574cf	1530	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	1531	while (dp->sect) {
mbed_official	5:b3b3370574cf	1532	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1533	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1534	dir = dp->dir; /* Ptr to the directory entry of current index */
mbed_official	6:a5fcdbf92056	1535	c = dir[DIR_Name];
mbed_official	5:b3b3370574cf	1536	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mbed_official	6:a5fcdbf92056	1537	a = dir[DIR_Attr] & AM_MASK;
mbed_official	5:b3b3370574cf	1538	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1539	if (c == DDEM \|\| (!_FS_RPATH && c == '.') \|\| (int)((a & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */
mbed_official	5:b3b3370574cf	1540	ord = 0xFF;
mbed_official	5:b3b3370574cf	1541	} else {
mbed_official	5:b3b3370574cf	1542	if (a == AM_LFN) { /* An LFN entry is found */
mbed_official	5:b3b3370574cf	1543	if (c & LLEF) { /* Is it start of LFN sequence? */
mbed_official	6:a5fcdbf92056	1544	sum = dir[LDIR_Chksum];
mbed_official	5:b3b3370574cf	1545	c &= ~LLEF; ord = c;
mbed_official	5:b3b3370574cf	1546	dp->lfn_idx = dp->index;
mbed_official	5:b3b3370574cf	1547	}
mbed_official	5:b3b3370574cf	1548	/* Check LFN validity and capture it */
mbed_official	6:a5fcdbf92056	1549	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
mbed_official	5:b3b3370574cf	1550	} else { /* An SFN entry is found */
mbed_official	6:a5fcdbf92056	1551	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
mbed_official	5:b3b3370574cf	1552	dp->lfn_idx = 0xFFFF; /* It has no LFN. */
mbed_official	5:b3b3370574cf	1553	break;
mbed_official	5:b3b3370574cf	1554	}
mbed_official	5:b3b3370574cf	1555	}
mbed_official	5:b3b3370574cf	1556	#else /* Non LFN configuration */
mbed_official	5:b3b3370574cf	1557	if (c != DDEM && (_FS_RPATH \|\| c != '.') && a != AM_LFN && (int)((a & ~AM_ARC) == AM_VOL) == vol) /* Is it a valid entry? */
mbed_official	5:b3b3370574cf	1558	break;
emilmont	1:46ce1e16c870	1559	#endif
mbed_official	5:b3b3370574cf	1560	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1561	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	1562	}
mbed_official	5:b3b3370574cf	1563
mbed_official	5:b3b3370574cf	1564	if (res != FR_OK) dp->sect = 0;
mbed_official	5:b3b3370574cf	1565
mbed_official	5:b3b3370574cf	1566	return res;
emilmont	1:46ce1e16c870	1567	}
mbed_official	5:b3b3370574cf	1568	#endif /* _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2 */
mbed_official	5:b3b3370574cf	1569
emilmont	1:46ce1e16c870	1570
emilmont	1:46ce1e16c870	1571
emilmont	1:46ce1e16c870	1572
emilmont	1:46ce1e16c870	1573	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1574	/* Register an object to the directory */
emilmont	1:46ce1e16c870	1575	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1576	#if !_FS_READONLY
emilmont	1:46ce1e16c870	1577	static
mbed_official	6:a5fcdbf92056	1578	FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many SFN collision, FR_DISK_ERR:disk error */
mbed_official	5:b3b3370574cf	1579	FATFS_DIR* dp /* Target directory with object name to be created */
emilmont	1:46ce1e16c870	1580	)
emilmont	1:46ce1e16c870	1581	{
mbed_official	5:b3b3370574cf	1582	FRESULT res;
mbed_official	5:b3b3370574cf	1583	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1584	UINT n, nent;
mbed_official	5:b3b3370574cf	1585	BYTE sn[12], *fn, sum;
mbed_official	5:b3b3370574cf	1586	WCHAR *lfn;
mbed_official	5:b3b3370574cf	1587
mbed_official	5:b3b3370574cf	1588
mbed_official	5:b3b3370574cf	1589	fn = dp->fn; lfn = dp->lfn;
mbed_official	5:b3b3370574cf	1590	mem_cpy(sn, fn, 12);
mbed_official	5:b3b3370574cf	1591
mbed_official	5:b3b3370574cf	1592	if (_FS_RPATH && (sn[NSFLAG] & NS_DOT)) /* Cannot create dot entry */
mbed_official	5:b3b3370574cf	1593	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1594
mbed_official	5:b3b3370574cf	1595	if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
mbed_official	5:b3b3370574cf	1596	fn[NSFLAG] = 0; dp->lfn = 0; /* Find only SFN */
mbed_official	5:b3b3370574cf	1597	for (n = 1; n < 100; n++) {
mbed_official	5:b3b3370574cf	1598	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
mbed_official	5:b3b3370574cf	1599	res = dir_find(dp); /* Check if the name collides with existing SFN */
mbed_official	5:b3b3370574cf	1600	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	1601	}
mbed_official	5:b3b3370574cf	1602	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
mbed_official	5:b3b3370574cf	1603	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
mbed_official	5:b3b3370574cf	1604	fn[NSFLAG] = sn[NSFLAG]; dp->lfn = lfn;
mbed_official	5:b3b3370574cf	1605	}
mbed_official	5:b3b3370574cf	1606
mbed_official	5:b3b3370574cf	1607	if (sn[NSFLAG] & NS_LFN) { /* When LFN is to be created, allocate entries for an SFN + LFNs. */
mbed_official	5:b3b3370574cf	1608	for (n = 0; lfn[n]; n++) ;
mbed_official	5:b3b3370574cf	1609	nent = (n + 25) / 13;
mbed_official	5:b3b3370574cf	1610	} else { /* Otherwise allocate an entry for an SFN */
mbed_official	5:b3b3370574cf	1611	nent = 1;
mbed_official	5:b3b3370574cf	1612	}
mbed_official	5:b3b3370574cf	1613	res = dir_alloc(dp, nent); /* Allocate entries */
mbed_official	5:b3b3370574cf	1614
mbed_official	5:b3b3370574cf	1615	if (res == FR_OK && --nent) { /* Set LFN entry if needed */
mbed_official	5:b3b3370574cf	1616	res = dir_sdi(dp, dp->index - nent);
mbed_official	5:b3b3370574cf	1617	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	1618	sum = sum_sfn(dp->fn); /* Checksum value of the SFN tied to the LFN */
mbed_official	5:b3b3370574cf	1619	do { /* Store LFN entries in bottom first */
mbed_official	5:b3b3370574cf	1620	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1621	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1622	fit_lfn(dp->lfn, dp->dir, (BYTE)nent, sum);
mbed_official	5:b3b3370574cf	1623	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1624	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1625	} while (res == FR_OK && --nent);
mbed_official	5:b3b3370574cf	1626	}
mbed_official	5:b3b3370574cf	1627	}
mbed_official	5:b3b3370574cf	1628	#else /* Non LFN configuration */
mbed_official	5:b3b3370574cf	1629	res = dir_alloc(dp, 1); /* Allocate an entry for SFN */
emilmont	1:46ce1e16c870	1630	#endif
emilmont	1:46ce1e16c870	1631
mbed_official	5:b3b3370574cf	1632	if (res == FR_OK) { /* Set SFN entry */
mbed_official	5:b3b3370574cf	1633	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1634	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	1635	mem_set(dp->dir, 0, SZ_DIRE); /* Clean the entry */
mbed_official	6:a5fcdbf92056	1636	mem_cpy(dp->dir, dp->fn, 11); /* Put SFN */
emilmont	1:46ce1e16c870	1637	#if _USE_LFN
mbed_official	6:a5fcdbf92056	1638	dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY \| NS_EXT); /* Put NT flag */
emilmont	1:46ce1e16c870	1639	#endif
mbed_official	5:b3b3370574cf	1640	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1641	}
mbed_official	5:b3b3370574cf	1642	}
mbed_official	5:b3b3370574cf	1643
mbed_official	5:b3b3370574cf	1644	return res;
emilmont	1:46ce1e16c870	1645	}
emilmont	1:46ce1e16c870	1646	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	1647
emilmont	1:46ce1e16c870	1648
emilmont	1:46ce1e16c870	1649
emilmont	1:46ce1e16c870	1650
emilmont	1:46ce1e16c870	1651	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1652	/* Remove an object from the directory */
emilmont	1:46ce1e16c870	1653	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1654	#if !_FS_READONLY && !_FS_MINIMIZE
emilmont	1:46ce1e16c870	1655	static
mbed_official	6:a5fcdbf92056	1656	FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */
mbed_official	5:b3b3370574cf	1657	FATFS_DIR* dp /* Directory object pointing the entry to be removed */
mbed_official	5:b3b3370574cf	1658	)
mbed_official	5:b3b3370574cf	1659	{
mbed_official	5:b3b3370574cf	1660	FRESULT res;
mbed_official	5:b3b3370574cf	1661	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1662	UINT i;
mbed_official	5:b3b3370574cf	1663
mbed_official	5:b3b3370574cf	1664	i = dp->index; /* SFN index */
mbed_official	5:b3b3370574cf	1665	res = dir_sdi(dp, (dp->lfn_idx == 0xFFFF) ? i : dp->lfn_idx); /* Goto the SFN or top of the LFN entries */
mbed_official	5:b3b3370574cf	1666	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1667	do {
mbed_official	5:b3b3370574cf	1668	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1669	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1670	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
mbed_official	6:a5fcdbf92056	1671	*dp->dir = DDEM;
mbed_official	5:b3b3370574cf	1672	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1673	if (dp->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
mbed_official	5:b3b3370574cf	1674	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1675	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	1676	if (res == FR_NO_FILE) res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	1677	}
mbed_official	5:b3b3370574cf	1678
mbed_official	5:b3b3370574cf	1679	#else /* Non LFN configuration */
mbed_official	5:b3b3370574cf	1680	res = dir_sdi(dp, dp->index);
mbed_official	5:b3b3370574cf	1681	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1682	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1683	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	1684	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
mbed_official	6:a5fcdbf92056	1685	*dp->dir = DDEM;
mbed_official	5:b3b3370574cf	1686	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1687	}
mbed_official	5:b3b3370574cf	1688	}
mbed_official	5:b3b3370574cf	1689	#endif
mbed_official	5:b3b3370574cf	1690
mbed_official	5:b3b3370574cf	1691	return res;
mbed_official	5:b3b3370574cf	1692	}
mbed_official	5:b3b3370574cf	1693	#endif /* !_FS_READONLY */
mbed_official	5:b3b3370574cf	1694
mbed_official	5:b3b3370574cf	1695
mbed_official	5:b3b3370574cf	1696
mbed_official	5:b3b3370574cf	1697
mbed_official	5:b3b3370574cf	1698	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1699	/* Get file information from directory entry */
mbed_official	5:b3b3370574cf	1700	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1701	#if _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2
mbed_official	5:b3b3370574cf	1702	static
mbed_official	5:b3b3370574cf	1703	void get_fileinfo ( /* No return code */
mbed_official	5:b3b3370574cf	1704	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1705	FILINFO* fno /* Pointer to the file information to be filled */
emilmont	1:46ce1e16c870	1706	)
emilmont	1:46ce1e16c870	1707	{
mbed_official	5:b3b3370574cf	1708	UINT i;
mbed_official	5:b3b3370574cf	1709	TCHAR *p, c;
mbed_official	6:a5fcdbf92056	1710	BYTE *dir;
mbed_official	5:b3b3370574cf	1711	#if _USE_LFN
mbed_official	5:b3b3370574cf	1712	WCHAR w, *lfn;
mbed_official	5:b3b3370574cf	1713	#endif
mbed_official	5:b3b3370574cf	1714
mbed_official	5:b3b3370574cf	1715	p = fno->fname;
mbed_official	5:b3b3370574cf	1716	if (dp->sect) { /* Get SFN */
mbed_official	6:a5fcdbf92056	1717	dir = dp->dir;
mbed_official	5:b3b3370574cf	1718	i = 0;
mbed_official	5:b3b3370574cf	1719	while (i < 11) { /* Copy name body and extension */
mbed_official	6:a5fcdbf92056	1720	c = (TCHAR)dir[i++];
mbed_official	5:b3b3370574cf	1721	if (c == ' ') continue; /* Skip padding spaces */
mbed_official	5:b3b3370574cf	1722	if (c == RDDEM) c = (TCHAR)DDEM; /* Restore replaced DDEM character */
mbed_official	5:b3b3370574cf	1723	if (i == 9) p++ = '.'; / Insert a . if extension is exist */
mbed_official	5:b3b3370574cf	1724	#if _USE_LFN
mbed_official	6:a5fcdbf92056	1725	if (IsUpper(c) && (dir[DIR_NTres] & (i >= 9 ? NS_EXT : NS_BODY)))
mbed_official	5:b3b3370574cf	1726	c += 0x20; /* To lower */
mbed_official	5:b3b3370574cf	1727	#if _LFN_UNICODE
mbed_official	6:a5fcdbf92056	1728	if (IsDBCS1(c) && i != 8 && i != 11 && IsDBCS2(dir[i]))
mbed_official	6:a5fcdbf92056	1729	c = c << 8 \| dir[i++];
mbed_official	5:b3b3370574cf	1730	c = ff_convert(c, 1); /* OEM -> Unicode */
mbed_official	5:b3b3370574cf	1731	if (!c) c = '?';
mbed_official	5:b3b3370574cf	1732	#endif
mbed_official	5:b3b3370574cf	1733	#endif
mbed_official	5:b3b3370574cf	1734	*p++ = c;
mbed_official	5:b3b3370574cf	1735	}
mbed_official	6:a5fcdbf92056	1736	fno->fattrib = dir[DIR_Attr]; /* Attribute */
mbed_official	6:a5fcdbf92056	1737	fno->fsize = LD_DWORD(dir + DIR_FileSize); /* Size */
mbed_official	6:a5fcdbf92056	1738	fno->fdate = LD_WORD(dir + DIR_WrtDate); /* Date */
mbed_official	6:a5fcdbf92056	1739	fno->ftime = LD_WORD(dir + DIR_WrtTime); /* Time */
mbed_official	5:b3b3370574cf	1740	}
mbed_official	5:b3b3370574cf	1741	p = 0; / Terminate SFN string by a \0 */
mbed_official	5:b3b3370574cf	1742
mbed_official	5:b3b3370574cf	1743	#if _USE_LFN
mbed_official	5:b3b3370574cf	1744	if (fno->lfname) {
mbed_official	5:b3b3370574cf	1745	i = 0; p = fno->lfname;
mbed_official	5:b3b3370574cf	1746	if (dp->sect && fno->lfsize && dp->lfn_idx != 0xFFFF) { /* Get LFN if available */
mbed_official	5:b3b3370574cf	1747	lfn = dp->lfn;
mbed_official	5:b3b3370574cf	1748	while ((w = lfn++) != 0) { / Get an LFN character */
mbed_official	5:b3b3370574cf	1749	#if !_LFN_UNICODE
mbed_official	5:b3b3370574cf	1750	w = ff_convert(w, 0); /* Unicode -> OEM */
mbed_official	5:b3b3370574cf	1751	if (!w) { i = 0; break; } /* No LFN if it could not be converted */
mbed_official	5:b3b3370574cf	1752	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
mbed_official	5:b3b3370574cf	1753	p[i++] = (TCHAR)(w >> 8);
mbed_official	5:b3b3370574cf	1754	#endif
mbed_official	5:b3b3370574cf	1755	if (i >= fno->lfsize - 1) { i = 0; break; } /* No LFN if buffer overflow */
mbed_official	5:b3b3370574cf	1756	p[i++] = (TCHAR)w;
mbed_official	5:b3b3370574cf	1757	}
mbed_official	5:b3b3370574cf	1758	}
mbed_official	5:b3b3370574cf	1759	p[i] = 0; /* Terminate LFN string by a \0 */
mbed_official	5:b3b3370574cf	1760	}
emilmont	1:46ce1e16c870	1761	#endif
mbed_official	5:b3b3370574cf	1762	}
mbed_official	5:b3b3370574cf	1763	#endif /* _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2 */
mbed_official	5:b3b3370574cf	1764
mbed_official	5:b3b3370574cf	1765
mbed_official	5:b3b3370574cf	1766
mbed_official	5:b3b3370574cf	1767
mbed_official	5:b3b3370574cf	1768	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1769	/* Pattern matching */
mbed_official	5:b3b3370574cf	1770	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1771	#if _USE_FIND && _FS_MINIMIZE <= 1
mbed_official	5:b3b3370574cf	1772	static
mbed_official	5:b3b3370574cf	1773	WCHAR get_achar ( /* Get a character and advances ptr 1 or 2 */
mbed_official	5:b3b3370574cf	1774	const TCHAR** ptr /* Pointer to pointer to the SBCS/DBCS/Unicode string */
mbed_official	5:b3b3370574cf	1775	)
mbed_official	5:b3b3370574cf	1776	{
mbed_official	5:b3b3370574cf	1777	WCHAR chr;
mbed_official	5:b3b3370574cf	1778
mbed_official	5:b3b3370574cf	1779	#if !_LFN_UNICODE
mbed_official	5:b3b3370574cf	1780	chr = (BYTE)(ptr)++; /* Get a byte */
mbed_official	5:b3b3370574cf	1781	if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */
mbed_official	5:b3b3370574cf	1782	if (IsDBCS1(chr) && IsDBCS2(*ptr)) / Get DBC 2nd byte if needed */
mbed_official	5:b3b3370574cf	1783	chr = chr << 8 \| (BYTE)(ptr)++;
mbed_official	5:b3b3370574cf	1784	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	1785	if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */
mbed_official	5:b3b3370574cf	1786	#endif
mbed_official	5:b3b3370574cf	1787	#else
mbed_official	5:b3b3370574cf	1788	chr = ff_wtoupper((ptr)++); /* Get a word and to upper */
mbed_official	5:b3b3370574cf	1789	#endif
mbed_official	5:b3b3370574cf	1790	return chr;
emilmont	1:46ce1e16c870	1791	}
mbed_official	5:b3b3370574cf	1792
mbed_official	5:b3b3370574cf	1793
mbed_official	5:b3b3370574cf	1794	static
mbed_official	6:a5fcdbf92056	1795	int pattern_matching ( /* 0:mismatched, 1:matched */
mbed_official	5:b3b3370574cf	1796	const TCHAR* pat, /* Matching pattern */
mbed_official	5:b3b3370574cf	1797	const TCHAR* nam, /* String to be tested */
mbed_official	5:b3b3370574cf	1798	int skip, /* Number of pre-skip chars (number of ?s) */
mbed_official	5:b3b3370574cf	1799	int inf /* Infinite search (* specified) */
mbed_official	5:b3b3370574cf	1800	)
mbed_official	5:b3b3370574cf	1801	{
mbed_official	5:b3b3370574cf	1802	const TCHAR pp, np;
mbed_official	5:b3b3370574cf	1803	WCHAR pc, nc;
mbed_official	5:b3b3370574cf	1804	int nm, nx;
mbed_official	5:b3b3370574cf	1805
mbed_official	5:b3b3370574cf	1806
mbed_official	5:b3b3370574cf	1807	while (skip--) { /* Pre-skip name chars */
mbed_official	5:b3b3370574cf	1808	if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */
mbed_official	5:b3b3370574cf	1809	}
mbed_official	5:b3b3370574cf	1810	if (!pat && inf) return 1; / (short circuit) */
mbed_official	5:b3b3370574cf	1811
mbed_official	5:b3b3370574cf	1812	do {
mbed_official	5:b3b3370574cf	1813	pp = pat; np = nam; /* Top of pattern and name to match */
mbed_official	5:b3b3370574cf	1814	for (;;) {
mbed_official	5:b3b3370574cf	1815	if (pp == '?' \|\| pp == '') { / Wildcard? */
mbed_official	5:b3b3370574cf	1816	nm = nx = 0;
mbed_official	5:b3b3370574cf	1817	do { /* Analyze the wildcard chars */
mbed_official	5:b3b3370574cf	1818	if (*pp++ == '?') nm++; else nx = 1;
mbed_official	5:b3b3370574cf	1819	} while (pp == '?' \|\| pp == '*');
mbed_official	5:b3b3370574cf	1820	if (pattern_matching(pp, np, nm, nx)) return 1; /* Test new branch (recurs upto number of wildcard blocks in the pattern) */
mbed_official	5:b3b3370574cf	1821	nc = np; break; / Branch mismatched */
mbed_official	5:b3b3370574cf	1822	}
mbed_official	5:b3b3370574cf	1823	pc = get_achar(&pp); /* Get a pattern char */
mbed_official	5:b3b3370574cf	1824	nc = get_achar(&np); /* Get a name char */
mbed_official	5:b3b3370574cf	1825	if (pc != nc) break; /* Branch mismatched? */
mbed_official	5:b3b3370574cf	1826	if (!pc) return 1; /* Branch matched? (matched at end of both strings) */
mbed_official	5:b3b3370574cf	1827	}
mbed_official	5:b3b3370574cf	1828	get_achar(&nam); /* nam++ */
mbed_official	5:b3b3370574cf	1829	} while (inf && nc); /* Retry until end of name if infinite search is specified */
mbed_official	5:b3b3370574cf	1830
mbed_official	5:b3b3370574cf	1831	return 0;
mbed_official	5:b3b3370574cf	1832	}
mbed_official	5:b3b3370574cf	1833	#endif /* _USE_FIND && _FS_MINIMIZE <= 1 */
emilmont	1:46ce1e16c870	1834
emilmont	1:46ce1e16c870	1835
emilmont	1:46ce1e16c870	1836
emilmont	1:46ce1e16c870	1837
emilmont	1:46ce1e16c870	1838	/-----------------------------------------------------------------------/
mbed_official	6:a5fcdbf92056	1839	/* Pick a top segment and create the object name in directory form */
emilmont	1:46ce1e16c870	1840	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1841
emilmont	1:46ce1e16c870	1842	static
mbed_official	6:a5fcdbf92056	1843	FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */
mbed_official	5:b3b3370574cf	1844	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1845	const TCHAR** path /* Pointer to pointer to the segment in the path string */
emilmont	1:46ce1e16c870	1846	)
emilmont	1:46ce1e16c870	1847	{
mbed_official	5:b3b3370574cf	1848	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1849	BYTE b, cf;
mbed_official	5:b3b3370574cf	1850	WCHAR w, *lfn;
mbed_official	5:b3b3370574cf	1851	UINT i, ni, si, di;
mbed_official	5:b3b3370574cf	1852	const TCHAR *p;
mbed_official	5:b3b3370574cf	1853
mbed_official	5:b3b3370574cf	1854	/* Create LFN in Unicode */
mbed_official	5:b3b3370574cf	1855	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
mbed_official	5:b3b3370574cf	1856	lfn = dp->lfn;
mbed_official	5:b3b3370574cf	1857	si = di = 0;
mbed_official	5:b3b3370574cf	1858	for (;;) {
mbed_official	5:b3b3370574cf	1859	w = p[si++]; /* Get a character */
mbed_official	5:b3b3370574cf	1860	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
mbed_official	5:b3b3370574cf	1861	if (di >= _MAX_LFN) /* Reject too long name */
mbed_official	5:b3b3370574cf	1862	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1863	#if !_LFN_UNICODE
mbed_official	5:b3b3370574cf	1864	w &= 0xFF;
mbed_official	5:b3b3370574cf	1865	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
mbed_official	5:b3b3370574cf	1866	b = (BYTE)p[si++]; /* Get 2nd byte */
mbed_official	5:b3b3370574cf	1867	w = (w << 8) + b; /* Create a DBC */
mbed_official	5:b3b3370574cf	1868	if (!IsDBCS2(b))
mbed_official	5:b3b3370574cf	1869	return FR_INVALID_NAME; /* Reject invalid sequence */
mbed_official	5:b3b3370574cf	1870	}
mbed_official	5:b3b3370574cf	1871	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
mbed_official	5:b3b3370574cf	1872	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
emilmont	1:46ce1e16c870	1873	#endif
mbed_official	5:b3b3370574cf	1874	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal characters for LFN */
mbed_official	5:b3b3370574cf	1875	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1876	lfn[di++] = w; /* Store the Unicode character */
mbed_official	5:b3b3370574cf	1877	}
mbed_official	5:b3b3370574cf	1878	path = &p[si]; / Return pointer to the next segment */
mbed_official	5:b3b3370574cf	1879	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
emilmont	1:46ce1e16c870	1880	#if _FS_RPATH
mbed_official	6:a5fcdbf92056	1881	if ((di == 1 && lfn[di - 1] == '.') \|\|
mbed_official	6:a5fcdbf92056	1882	(di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot entry? */
mbed_official	5:b3b3370574cf	1883	lfn[di] = 0;
mbed_official	6:a5fcdbf92056	1884	for (i = 0; i < 11; i++) /* Create dot name for SFN entry */
mbed_official	5:b3b3370574cf	1885	dp->fn[i] = (i < di) ? '.' : ' ';
mbed_official	5:b3b3370574cf	1886	dp->fn[i] = cf \| NS_DOT; /* This is a dot entry */
mbed_official	5:b3b3370574cf	1887	return FR_OK;
mbed_official	5:b3b3370574cf	1888	}
emilmont	1:46ce1e16c870	1889	#endif
mbed_official	6:a5fcdbf92056	1890	while (di) { /* Snip off trailing spaces and dots if exist */
mbed_official	5:b3b3370574cf	1891	w = lfn[di - 1];
mbed_official	5:b3b3370574cf	1892	if (w != ' ' && w != '.') break;
mbed_official	5:b3b3370574cf	1893	di--;
mbed_official	5:b3b3370574cf	1894	}
mbed_official	5:b3b3370574cf	1895	if (!di) return FR_INVALID_NAME; /* Reject nul string */
mbed_official	5:b3b3370574cf	1896	lfn[di] = 0; /* LFN is created */
mbed_official	5:b3b3370574cf	1897
mbed_official	5:b3b3370574cf	1898	/* Create SFN in directory form */
mbed_official	5:b3b3370574cf	1899	mem_set(dp->fn, ' ', 11);
mbed_official	5:b3b3370574cf	1900	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
mbed_official	5:b3b3370574cf	1901	if (si) cf \|= NS_LOSS \| NS_LFN;
mbed_official	5:b3b3370574cf	1902	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
mbed_official	5:b3b3370574cf	1903
mbed_official	5:b3b3370574cf	1904	b = i = 0; ni = 8;
mbed_official	5:b3b3370574cf	1905	for (;;) {
mbed_official	5:b3b3370574cf	1906	w = lfn[si++]; /* Get an LFN character */
mbed_official	5:b3b3370574cf	1907	if (!w) break; /* Break on end of the LFN */
mbed_official	5:b3b3370574cf	1908	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
mbed_official	5:b3b3370574cf	1909	cf \|= NS_LOSS \| NS_LFN; continue;
mbed_official	5:b3b3370574cf	1910	}
mbed_official	5:b3b3370574cf	1911
mbed_official	5:b3b3370574cf	1912	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
mbed_official	5:b3b3370574cf	1913	if (ni == 11) { /* Long extension */
mbed_official	5:b3b3370574cf	1914	cf \|= NS_LOSS \| NS_LFN; break;
mbed_official	5:b3b3370574cf	1915	}
mbed_official	5:b3b3370574cf	1916	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
mbed_official	5:b3b3370574cf	1917	if (si > di) break; /* No extension */
mbed_official	5:b3b3370574cf	1918	si = di; i = 8; ni = 11; /* Enter extension section */
mbed_official	5:b3b3370574cf	1919	b <<= 2; continue;
mbed_official	5:b3b3370574cf	1920	}
mbed_official	5:b3b3370574cf	1921
mbed_official	5:b3b3370574cf	1922	if (w >= 0x80) { /* Non ASCII character */
emilmont	1:46ce1e16c870	1923	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	1924	w = ff_convert(w, 0); /* Unicode -> OEM code */
mbed_official	5:b3b3370574cf	1925	if (w) w = ExCvt[w - 0x80]; /* Convert extended character to upper (SBCS) */
emilmont	1:46ce1e16c870	1926	#else
mbed_official	5:b3b3370574cf	1927	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
emilmont	1:46ce1e16c870	1928	#endif
mbed_official	5:b3b3370574cf	1929	cf \|= NS_LFN; /* Force create LFN entry */
mbed_official	5:b3b3370574cf	1930	}
mbed_official	5:b3b3370574cf	1931
mbed_official	6:a5fcdbf92056	1932	if (_DF1S && w >= 0x100) { /* Is this DBC? (always false at SBCS cfg) */
mbed_official	5:b3b3370574cf	1933	if (i >= ni - 1) {
mbed_official	5:b3b3370574cf	1934	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
mbed_official	5:b3b3370574cf	1935	}
mbed_official	5:b3b3370574cf	1936	dp->fn[i++] = (BYTE)(w >> 8);
mbed_official	5:b3b3370574cf	1937	} else { /* SBC */
mbed_official	5:b3b3370574cf	1938	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal characters for SFN */
mbed_official	5:b3b3370574cf	1939	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
mbed_official	5:b3b3370574cf	1940	} else {
mbed_official	5:b3b3370574cf	1941	if (IsUpper(w)) { /* ASCII large capital */
mbed_official	5:b3b3370574cf	1942	b \|= 2;
mbed_official	5:b3b3370574cf	1943	} else {
mbed_official	5:b3b3370574cf	1944	if (IsLower(w)) { /* ASCII small capital */
mbed_official	5:b3b3370574cf	1945	b \|= 1; w -= 0x20;
mbed_official	5:b3b3370574cf	1946	}
mbed_official	5:b3b3370574cf	1947	}
mbed_official	5:b3b3370574cf	1948	}
mbed_official	5:b3b3370574cf	1949	}
mbed_official	5:b3b3370574cf	1950	dp->fn[i++] = (BYTE)w;
mbed_official	5:b3b3370574cf	1951	}
mbed_official	5:b3b3370574cf	1952
mbed_official	6:a5fcdbf92056	1953	if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */
mbed_official	5:b3b3370574cf	1954
mbed_official	5:b3b3370574cf	1955	if (ni == 8) b <<= 2;
mbed_official	5:b3b3370574cf	1956	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
mbed_official	5:b3b3370574cf	1957	cf \|= NS_LFN;
mbed_official	5:b3b3370574cf	1958	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */
mbed_official	5:b3b3370574cf	1959	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
mbed_official	5:b3b3370574cf	1960	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
mbed_official	5:b3b3370574cf	1961	}
mbed_official	5:b3b3370574cf	1962
mbed_official	5:b3b3370574cf	1963	dp->fn[NSFLAG] = cf; /* SFN is created */
mbed_official	5:b3b3370574cf	1964
mbed_official	5:b3b3370574cf	1965	return FR_OK;
mbed_official	5:b3b3370574cf	1966
mbed_official	5:b3b3370574cf	1967
mbed_official	5:b3b3370574cf	1968	#else /* Non-LFN configuration */
mbed_official	5:b3b3370574cf	1969	BYTE b, c, d, *sfn;
mbed_official	5:b3b3370574cf	1970	UINT ni, si, i;
mbed_official	5:b3b3370574cf	1971	const char *p;
mbed_official	5:b3b3370574cf	1972
mbed_official	5:b3b3370574cf	1973	/* Create file name in directory form */
mbed_official	6:a5fcdbf92056	1974	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Skip duplicated separator */
mbed_official	5:b3b3370574cf	1975	sfn = dp->fn;
mbed_official	5:b3b3370574cf	1976	mem_set(sfn, ' ', 11);
mbed_official	5:b3b3370574cf	1977	si = i = b = 0; ni = 8;
emilmont	1:46ce1e16c870	1978	#if _FS_RPATH
mbed_official	5:b3b3370574cf	1979	if (p[si] == '.') { /* Is this a dot entry? */
mbed_official	5:b3b3370574cf	1980	for (;;) {
mbed_official	5:b3b3370574cf	1981	c = (BYTE)p[si++];
mbed_official	5:b3b3370574cf	1982	if (c != '.' \|\| si >= 3) break;
mbed_official	5:b3b3370574cf	1983	sfn[i++] = c;
mbed_official	5:b3b3370574cf	1984	}
mbed_official	5:b3b3370574cf	1985	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1986	path = &p[si]; / Return pointer to the next segment */
mbed_official	5:b3b3370574cf	1987	sfn[NSFLAG] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
mbed_official	5:b3b3370574cf	1988	return FR_OK;
mbed_official	5:b3b3370574cf	1989	}
emilmont	1:46ce1e16c870	1990	#endif
mbed_official	5:b3b3370574cf	1991	for (;;) {
mbed_official	5:b3b3370574cf	1992	c = (BYTE)p[si++];
mbed_official	5:b3b3370574cf	1993	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
mbed_official	5:b3b3370574cf	1994	if (c == '.' \|\| i >= ni) {
mbed_official	5:b3b3370574cf	1995	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1996	i = 8; ni = 11;
mbed_official	5:b3b3370574cf	1997	b <<= 2; continue;
mbed_official	5:b3b3370574cf	1998	}
mbed_official	5:b3b3370574cf	1999	if (c >= 0x80) { /* Extended character? */
mbed_official	5:b3b3370574cf	2000	b \|= 3; /* Eliminate NT flag */
emilmont	1:46ce1e16c870	2001	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	2002	c = ExCvt[c - 0x80]; /* To upper extended characters (SBCS cfg) */
emilmont	1:46ce1e16c870	2003	#else
mbed_official	5:b3b3370574cf	2004	#if !_DF1S
mbed_official	5:b3b3370574cf	2005	return FR_INVALID_NAME; /* Reject extended characters (ASCII cfg) */
emilmont	1:46ce1e16c870	2006	#endif
emilmont	1:46ce1e16c870	2007	#endif
mbed_official	5:b3b3370574cf	2008	}
mbed_official	6:a5fcdbf92056	2009	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false at SBCS cfg.) */
mbed_official	5:b3b3370574cf	2010	d = (BYTE)p[si++]; /* Get 2nd byte */
mbed_official	5:b3b3370574cf	2011	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
mbed_official	5:b3b3370574cf	2012	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	2013	sfn[i++] = c;
mbed_official	5:b3b3370574cf	2014	sfn[i++] = d;
mbed_official	5:b3b3370574cf	2015	} else { /* SBC */
mbed_official	5:b3b3370574cf	2016	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
mbed_official	5:b3b3370574cf	2017	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	2018	if (IsUpper(c)) { /* ASCII large capital? */
mbed_official	5:b3b3370574cf	2019	b \|= 2;
mbed_official	5:b3b3370574cf	2020	} else {
mbed_official	5:b3b3370574cf	2021	if (IsLower(c)) { /* ASCII small capital? */
mbed_official	5:b3b3370574cf	2022	b \|= 1; c -= 0x20;
mbed_official	5:b3b3370574cf	2023	}
mbed_official	5:b3b3370574cf	2024	}
mbed_official	5:b3b3370574cf	2025	sfn[i++] = c;
mbed_official	5:b3b3370574cf	2026	}
mbed_official	5:b3b3370574cf	2027	}
mbed_official	5:b3b3370574cf	2028	path = &p[si]; / Return pointer to the next segment */
mbed_official	5:b3b3370574cf	2029	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
mbed_official	5:b3b3370574cf	2030
mbed_official	5:b3b3370574cf	2031	if (!i) return FR_INVALID_NAME; /* Reject nul string */
mbed_official	5:b3b3370574cf	2032	if (sfn[0] == DDEM) sfn[0] = RDDEM; /* When first character collides with DDEM, replace it with RDDEM */
mbed_official	5:b3b3370574cf	2033
mbed_official	5:b3b3370574cf	2034	if (ni == 8) b <<= 2;
mbed_official	5:b3b3370574cf	2035	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
mbed_official	5:b3b3370574cf	2036	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
mbed_official	5:b3b3370574cf	2037
mbed_official	5:b3b3370574cf	2038	sfn[NSFLAG] = c; /* Store NT flag, File name is created */
mbed_official	5:b3b3370574cf	2039
mbed_official	5:b3b3370574cf	2040	return FR_OK;
emilmont	1:46ce1e16c870	2041	#endif
emilmont	1:46ce1e16c870	2042	}
emilmont	1:46ce1e16c870	2043
emilmont	1:46ce1e16c870	2044
emilmont	1:46ce1e16c870	2045
emilmont	1:46ce1e16c870	2046
emilmont	1:46ce1e16c870	2047	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2048	/* Follow a file path */
emilmont	1:46ce1e16c870	2049	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2050
emilmont	1:46ce1e16c870	2051	static
mbed_official	5:b3b3370574cf	2052	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
mbed_official	5:b3b3370574cf	2053	FATFS_DIR* dp, /* Directory object to return last directory and found object */
mbed_official	5:b3b3370574cf	2054	const TCHAR* path /* Full-path string to find a file or directory */
emilmont	1:46ce1e16c870	2055	)
emilmont	1:46ce1e16c870	2056	{
mbed_official	5:b3b3370574cf	2057	FRESULT res;
mbed_official	6:a5fcdbf92056	2058	BYTE *dir, ns;
emilmont	1:46ce1e16c870	2059
emilmont	1:46ce1e16c870	2060
emilmont	1:46ce1e16c870	2061	#if _FS_RPATH
mbed_official	5:b3b3370574cf	2062	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
mbed_official	5:b3b3370574cf	2063	path++; dp->sclust = 0; /* Strip it and start from the root directory */
mbed_official	5:b3b3370574cf	2064	} else { /* No heading separator */
mbed_official	5:b3b3370574cf	2065	dp->sclust = dp->fs->cdir; /* Start from the current directory */
mbed_official	5:b3b3370574cf	2066	}
emilmont	1:46ce1e16c870	2067	#else
mbed_official	5:b3b3370574cf	2068	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
mbed_official	5:b3b3370574cf	2069	path++;
mbed_official	5:b3b3370574cf	2070	dp->sclust = 0; /* Always start from the root directory */
emilmont	1:46ce1e16c870	2071	#endif
emilmont	1:46ce1e16c870	2072
mbed_official	5:b3b3370574cf	2073	if ((UINT)path < ' ') { / Null path name is the origin directory itself */
mbed_official	5:b3b3370574cf	2074	res = dir_sdi(dp, 0);
mbed_official	6:a5fcdbf92056	2075	dp->dir = 0;
mbed_official	5:b3b3370574cf	2076	} else { /* Follow path */
mbed_official	5:b3b3370574cf	2077	for (;;) {
mbed_official	5:b3b3370574cf	2078	res = create_name(dp, &path); /* Get a segment name of the path */
mbed_official	5:b3b3370574cf	2079	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	2080	res = dir_find(dp); /* Find an object with the sagment name */
mbed_official	5:b3b3370574cf	2081	ns = dp->fn[NSFLAG];
mbed_official	5:b3b3370574cf	2082	if (res != FR_OK) { /* Failed to find the object */
mbed_official	5:b3b3370574cf	2083	if (res == FR_NO_FILE) { /* Object is not found */
mbed_official	5:b3b3370574cf	2084	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, */
mbed_official	6:a5fcdbf92056	2085	dp->sclust = 0; dp->dir = 0; /* it is the root directory and stay there */
mbed_official	5:b3b3370574cf	2086	if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */
mbed_official	5:b3b3370574cf	2087	res = FR_OK; /* Ended at the root directroy. Function completed. */
mbed_official	5:b3b3370574cf	2088	} else { /* Could not find the object */
mbed_official	5:b3b3370574cf	2089	if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */
mbed_official	5:b3b3370574cf	2090	}
mbed_official	5:b3b3370574cf	2091	}
mbed_official	5:b3b3370574cf	2092	break;
mbed_official	5:b3b3370574cf	2093	}
mbed_official	5:b3b3370574cf	2094	if (ns & NS_LAST) break; /* Last segment matched. Function completed. */
mbed_official	6:a5fcdbf92056	2095	dir = dp->dir; /* Follow the sub-directory */
mbed_official	6:a5fcdbf92056	2096	if (!(dir[DIR_Attr] & AM_DIR)) { /* It is not a sub-directory and cannot follow */
mbed_official	5:b3b3370574cf	2097	res = FR_NO_PATH; break;
mbed_official	5:b3b3370574cf	2098	}
mbed_official	6:a5fcdbf92056	2099	dp->sclust = ld_clust(dp->fs, dir);
mbed_official	5:b3b3370574cf	2100	}
mbed_official	5:b3b3370574cf	2101	}
mbed_official	5:b3b3370574cf	2102
mbed_official	5:b3b3370574cf	2103	return res;
emilmont	1:46ce1e16c870	2104	}
emilmont	1:46ce1e16c870	2105
emilmont	1:46ce1e16c870	2106
emilmont	1:46ce1e16c870	2107
emilmont	1:46ce1e16c870	2108
emilmont	1:46ce1e16c870	2109	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2110	/* Get logical drive number from path name */
emilmont	1:46ce1e16c870	2111	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2112
emilmont	1:46ce1e16c870	2113	static
mbed_official	5:b3b3370574cf	2114	int get_ldnumber ( /* Returns logical drive number (-1:invalid drive) */
mbed_official	5:b3b3370574cf	2115	const TCHAR** path /* Pointer to pointer to the path name */
emilmont	1:46ce1e16c870	2116	)
emilmont	1:46ce1e16c870	2117	{
mbed_official	5:b3b3370574cf	2118	const TCHAR tp, tt;
mbed_official	5:b3b3370574cf	2119	UINT i;
mbed_official	5:b3b3370574cf	2120	int vol = -1;
mbed_official	5:b3b3370574cf	2121	#if _STR_VOLUME_ID /* Find string drive id */
mbed_official	5:b3b3370574cf	2122	static const char* const str[] = {_VOLUME_STRS};
mbed_official	5:b3b3370574cf	2123	const char *sp;
mbed_official	5:b3b3370574cf	2124	char c;
mbed_official	5:b3b3370574cf	2125	TCHAR tc;
mbed_official	5:b3b3370574cf	2126	#endif
mbed_official	5:b3b3370574cf	2127
mbed_official	5:b3b3370574cf	2128
mbed_official	5:b3b3370574cf	2129	if (path) { / If the pointer is not a null */
mbed_official	5:b3b3370574cf	2130	for (tt = path; (UINT)tt >= (_USE_LFN ? ' ' : '!') && tt != ':'; tt++) ; / Find ':' in the path */
mbed_official	5:b3b3370574cf	2131	if (tt == ':') { / If a ':' is exist in the path name */
mbed_official	5:b3b3370574cf	2132	tp = *path;
mbed_official	5:b3b3370574cf	2133	i = *tp++ - '0';
mbed_official	5:b3b3370574cf	2134	if (i < 10 && tp == tt) { /* Is there a numeric drive id? */
mbed_official	5:b3b3370574cf	2135	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
mbed_official	5:b3b3370574cf	2136	vol = (int)i;
mbed_official	5:b3b3370574cf	2137	*path = ++tt;
mbed_official	5:b3b3370574cf	2138	}
mbed_official	5:b3b3370574cf	2139	}
mbed_official	5:b3b3370574cf	2140	#if _STR_VOLUME_ID
mbed_official	5:b3b3370574cf	2141	else { /* No numeric drive number, find string drive id */
mbed_official	5:b3b3370574cf	2142	i = 0; tt++;
mbed_official	5:b3b3370574cf	2143	do {
mbed_official	5:b3b3370574cf	2144	sp = str[i]; tp = *path;
mbed_official	5:b3b3370574cf	2145	do { /* Compare a string drive id with path name */
mbed_official	5:b3b3370574cf	2146	c = sp++; tc = tp++;
mbed_official	5:b3b3370574cf	2147	if (IsLower(tc)) tc -= 0x20;
mbed_official	5:b3b3370574cf	2148	} while (c && (TCHAR)c == tc);
mbed_official	5:b3b3370574cf	2149	} while ((c \|\| tp != tt) && ++i < _VOLUMES); /* Repeat for each id until pattern match */
mbed_official	5:b3b3370574cf	2150	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
mbed_official	5:b3b3370574cf	2151	vol = (int)i;
mbed_official	5:b3b3370574cf	2152	*path = tt;
mbed_official	5:b3b3370574cf	2153	}
mbed_official	5:b3b3370574cf	2154	}
mbed_official	5:b3b3370574cf	2155	#endif
mbed_official	5:b3b3370574cf	2156	return vol;
mbed_official	5:b3b3370574cf	2157	}
mbed_official	5:b3b3370574cf	2158	#if _FS_RPATH && _VOLUMES >= 2
mbed_official	5:b3b3370574cf	2159	vol = CurrVol; /* Current drive */
mbed_official	5:b3b3370574cf	2160	#else
mbed_official	5:b3b3370574cf	2161	vol = 0; /* Drive 0 */
mbed_official	5:b3b3370574cf	2162	#endif
mbed_official	5:b3b3370574cf	2163	}
mbed_official	5:b3b3370574cf	2164	return vol;
mbed_official	5:b3b3370574cf	2165	}
mbed_official	5:b3b3370574cf	2166
mbed_official	5:b3b3370574cf	2167
mbed_official	5:b3b3370574cf	2168
mbed_official	5:b3b3370574cf	2169
mbed_official	5:b3b3370574cf	2170	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2171	/* Load a sector and check if it is an FAT boot sector */
mbed_official	5:b3b3370574cf	2172	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2173
mbed_official	5:b3b3370574cf	2174	static
mbed_official	6:a5fcdbf92056	2175	BYTE check_fs ( /* 0:Valid FAT-BS, 1:Valid BS but not FAT, 2:Not a BS, 3:Disk error */
mbed_official	5:b3b3370574cf	2176	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	2177	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
mbed_official	5:b3b3370574cf	2178	)
mbed_official	5:b3b3370574cf	2179	{
mbed_official	5:b3b3370574cf	2180	fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */
mbed_official	5:b3b3370574cf	2181	if (move_window(fs, sect) != FR_OK) /* Load boot record */
mbed_official	5:b3b3370574cf	2182	return 3;
mbed_official	5:b3b3370574cf	2183
mbed_official	5:b3b3370574cf	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) */
mbed_official	5:b3b3370574cf	2185	return 2;
mbed_official	5:b3b3370574cf	2186
mbed_official	5:b3b3370574cf	2187	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
mbed_official	5:b3b3370574cf	2188	return 0;
mbed_official	5:b3b3370574cf	2189	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
mbed_official	5:b3b3370574cf	2190	return 0;
mbed_official	5:b3b3370574cf	2191
mbed_official	5:b3b3370574cf	2192	return 1;
emilmont	1:46ce1e16c870	2193	}
emilmont	1:46ce1e16c870	2194
emilmont	1:46ce1e16c870	2195
emilmont	1:46ce1e16c870	2196
emilmont	1:46ce1e16c870	2197
emilmont	1:46ce1e16c870	2198	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2199	/* Find logical drive and check if the volume is mounted */
emilmont	1:46ce1e16c870	2200	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2201
emilmont	1:46ce1e16c870	2202	static
mbed_official	5:b3b3370574cf	2203	FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */
mbed_official	5:b3b3370574cf	2204	FATFS** rfs, /* Pointer to pointer to the found file system object */
mbed_official	5:b3b3370574cf	2205	const TCHAR** path, /* Pointer to pointer to the path name (drive number) */
mbed_official	5:b3b3370574cf	2206	BYTE wmode /* !=0: Check write protection for write access */
emilmont	1:46ce1e16c870	2207	)
emilmont	1:46ce1e16c870	2208	{
mbed_official	5:b3b3370574cf	2209	BYTE fmt, *pt;
mbed_official	5:b3b3370574cf	2210	int vol;
mbed_official	5:b3b3370574cf	2211	DSTATUS stat;
mbed_official	5:b3b3370574cf	2212	DWORD bsect, fasize, tsect, sysect, nclst, szbfat, br[4];
mbed_official	5:b3b3370574cf	2213	WORD nrsv;
mbed_official	5:b3b3370574cf	2214	FATFS *fs;
mbed_official	5:b3b3370574cf	2215	UINT i;
mbed_official	5:b3b3370574cf	2216
mbed_official	5:b3b3370574cf	2217
mbed_official	5:b3b3370574cf	2218	/* Get logical drive number from the path name */
mbed_official	5:b3b3370574cf	2219	*rfs = 0;
mbed_official	5:b3b3370574cf	2220	vol = get_ldnumber(path);
mbed_official	5:b3b3370574cf	2221	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	2222
mbed_official	5:b3b3370574cf	2223	/* Check if the file system object is valid or not */
mbed_official	5:b3b3370574cf	2224	fs = FatFs[vol]; /* Get pointer to the file system object */
mbed_official	5:b3b3370574cf	2225	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
mbed_official	5:b3b3370574cf	2226
mbed_official	5:b3b3370574cf	2227	ENTER_FF(fs); /* Lock the volume */
mbed_official	5:b3b3370574cf	2228	rfs = fs; / Return pointer to the file system object */
mbed_official	5:b3b3370574cf	2229
mbed_official	5:b3b3370574cf	2230	if (fs->fs_type) { /* If the volume has been mounted */
mbed_official	5:b3b3370574cf	2231	stat = disk_status(fs->drv);
mbed_official	5:b3b3370574cf	2232	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */
mbed_official	5:b3b3370574cf	2233	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
mbed_official	5:b3b3370574cf	2234	return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	2235	return FR_OK; /* The file system object is valid */
mbed_official	5:b3b3370574cf	2236	}
mbed_official	5:b3b3370574cf	2237	}
mbed_official	5:b3b3370574cf	2238
mbed_official	5:b3b3370574cf	2239	/* The file system object is not valid. */
mbed_official	5:b3b3370574cf	2240	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
mbed_official	5:b3b3370574cf	2241
mbed_official	5:b3b3370574cf	2242	fs->fs_type = 0; /* Clear the file system object */
mbed_official	5:b3b3370574cf	2243	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
mbed_official	5:b3b3370574cf	2244	stat = disk_initialize(fs->drv); /* Initialize the physical drive */
mbed_official	5:b3b3370574cf	2245	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
mbed_official	5:b3b3370574cf	2246	return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
mbed_official	5:b3b3370574cf	2247	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
mbed_official	5:b3b3370574cf	2248	return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	2249	#if _MAX_SS != _MIN_SS /* Get sector size (multiple sector size cfg only) */
mbed_official	5:b3b3370574cf	2250	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
mbed_official	5:b3b3370574cf	2251	\|\| SS(fs) < _MIN_SS \|\| SS(fs) > _MAX_SS) return FR_DISK_ERR;
emilmont	1:46ce1e16c870	2252	#endif
mbed_official	5:b3b3370574cf	2253	/* Find an FAT partition on the drive. Supports only generic partitioning, FDISK and SFD. */
mbed_official	5:b3b3370574cf	2254	bsect = 0;
mbed_official	5:b3b3370574cf	2255	fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT boot sector as SFD */
mbed_official	5:b3b3370574cf	2256	if (fmt == 1 \|\| (!fmt && (LD2PT(vol)))) { /* Not an FAT boot sector or forced partition number */
mbed_official	5:b3b3370574cf	2257	for (i = 0; i < 4; i++) { /* Get partition offset */
mbed_official	5:b3b3370574cf	2258	pt = fs->win + MBR_Table + i * SZ_PTE;
mbed_official	5:b3b3370574cf	2259	br[i] = pt[4] ? LD_DWORD(&pt[8]) : 0;
mbed_official	5:b3b3370574cf	2260	}
mbed_official	5:b3b3370574cf	2261	i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */
mbed_official	5:b3b3370574cf	2262	if (i) i--;
mbed_official	5:b3b3370574cf	2263	do { /* Find an FAT volume */
mbed_official	5:b3b3370574cf	2264	bsect = br[i];
mbed_official	5:b3b3370574cf	2265	fmt = bsect ? check_fs(fs, bsect) : 2; /* Check the partition */
mbed_official	5:b3b3370574cf	2266	} while (!LD2PT(vol) && fmt && ++i < 4);
mbed_official	5:b3b3370574cf	2267	}
mbed_official	5:b3b3370574cf	2268	if (fmt == 3) return FR_DISK_ERR; /* An error occured in the disk I/O layer */
mbed_official	5:b3b3370574cf	2269	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
mbed_official	5:b3b3370574cf	2270
mbed_official	5:b3b3370574cf	2271	/* An FAT volume is found. Following code initializes the file system object */
mbed_official	5:b3b3370574cf	2272
mbed_official	5:b3b3370574cf	2273	if (LD_WORD(fs->win + BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
mbed_official	5:b3b3370574cf	2274	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2275
mbed_official	5:b3b3370574cf	2276	fasize = LD_WORD(fs->win + BPB_FATSz16); /* Number of sectors per FAT */
mbed_official	5:b3b3370574cf	2277	if (!fasize) fasize = LD_DWORD(fs->win + BPB_FATSz32);
mbed_official	5:b3b3370574cf	2278	fs->fsize = fasize;
mbed_official	5:b3b3370574cf	2279
mbed_official	5:b3b3370574cf	2280	fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */
mbed_official	5:b3b3370574cf	2281	if (fs->n_fats != 1 && fs->n_fats != 2) /* (Must be 1 or 2) */
mbed_official	5:b3b3370574cf	2282	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2283	fasize = fs->n_fats; / Number of sectors for FAT area */
mbed_official	5:b3b3370574cf	2284
mbed_official	5:b3b3370574cf	2285	fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
mbed_official	5:b3b3370574cf	2286	if (!fs->csize \|\| (fs->csize & (fs->csize - 1))) /* (Must be power of 2) */
mbed_official	5:b3b3370574cf	2287	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2288
mbed_official	5:b3b3370574cf	2289	fs->n_rootdir = LD_WORD(fs->win + BPB_RootEntCnt); /* Number of root directory entries */
mbed_official	5:b3b3370574cf	2290	if (fs->n_rootdir % (SS(fs) / SZ_DIRE)) /* (Must be sector aligned) */
mbed_official	5:b3b3370574cf	2291	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2292
mbed_official	5:b3b3370574cf	2293	tsect = LD_WORD(fs->win + BPB_TotSec16); /* Number of sectors on the volume */
mbed_official	5:b3b3370574cf	2294	if (!tsect) tsect = LD_DWORD(fs->win + BPB_TotSec32);
mbed_official	5:b3b3370574cf	2295
mbed_official	5:b3b3370574cf	2296	nrsv = LD_WORD(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */
mbed_official	5:b3b3370574cf	2297	if (!nrsv) return FR_NO_FILESYSTEM; /* (Must not be 0) */
mbed_official	5:b3b3370574cf	2298
mbed_official	5:b3b3370574cf	2299	/* Determine the FAT sub type */
mbed_official	5:b3b3370574cf	2300	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIRE); /* RSV + FAT + FATFS_DIR */
mbed_official	5:b3b3370574cf	2301	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mbed_official	5:b3b3370574cf	2302	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
mbed_official	5:b3b3370574cf	2303	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mbed_official	5:b3b3370574cf	2304	fmt = FS_FAT12;
mbed_official	5:b3b3370574cf	2305	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
mbed_official	5:b3b3370574cf	2306	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
mbed_official	5:b3b3370574cf	2307
mbed_official	5:b3b3370574cf	2308	/* Boundaries and Limits */
mbed_official	5:b3b3370574cf	2309	fs->n_fatent = nclst + 2; /* Number of FAT entries */
mbed_official	5:b3b3370574cf	2310	fs->volbase = bsect; /* Volume start sector */
mbed_official	5:b3b3370574cf	2311	fs->fatbase = bsect + nrsv; /* FAT start sector */
mbed_official	5:b3b3370574cf	2312	fs->database = bsect + sysect; /* Data start sector */
mbed_official	5:b3b3370574cf	2313	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	2314	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
mbed_official	5:b3b3370574cf	2315	fs->dirbase = LD_DWORD(fs->win + BPB_RootClus); /* Root directory start cluster */
mbed_official	5:b3b3370574cf	2316	szbfat = fs->n_fatent * 4; /* (Needed FAT size) */
mbed_official	5:b3b3370574cf	2317	} else {
mbed_official	5:b3b3370574cf	2318	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
mbed_official	5:b3b3370574cf	2319	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
mbed_official	5:b3b3370574cf	2320	szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */
mbed_official	5:b3b3370574cf	2321	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
mbed_official	5:b3b3370574cf	2322	}
mbed_official	5:b3b3370574cf	2323	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than the size needed) */
mbed_official	5:b3b3370574cf	2324	return FR_NO_FILESYSTEM;
emilmont	1:46ce1e16c870	2325
emilmont	1:46ce1e16c870	2326	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2327	/* Initialize cluster allocation information */
mbed_official	5:b3b3370574cf	2328	fs->last_clust = fs->free_clust = 0xFFFFFFFF;
mbed_official	5:b3b3370574cf	2329
mbed_official	5:b3b3370574cf	2330	/* Get fsinfo if available */
mbed_official	5:b3b3370574cf	2331	fs->fsi_flag = 0x80;
mbed_official	5:b3b3370574cf	2332	#if (_FS_NOFSINFO & 3) != 3
mbed_official	6:a5fcdbf92056	2333	if (fmt == FS_FAT32 /* Enable FSINFO only if FAT32 and BPB_FSInfo == 1 */
mbed_official	5:b3b3370574cf	2334	&& LD_WORD(fs->win + BPB_FSInfo) == 1
mbed_official	5:b3b3370574cf	2335	&& move_window(fs, bsect + 1) == FR_OK)
mbed_official	5:b3b3370574cf	2336	{
mbed_official	5:b3b3370574cf	2337	fs->fsi_flag = 0;
mbed_official	5:b3b3370574cf	2338	if (LD_WORD(fs->win + BS_55AA) == 0xAA55 /* Load FSINFO data if available */
mbed_official	5:b3b3370574cf	2339	&& LD_DWORD(fs->win + FSI_LeadSig) == 0x41615252
mbed_official	5:b3b3370574cf	2340	&& LD_DWORD(fs->win + FSI_StrucSig) == 0x61417272)
mbed_official	5:b3b3370574cf	2341	{
mbed_official	5:b3b3370574cf	2342	#if (_FS_NOFSINFO & 1) == 0
mbed_official	5:b3b3370574cf	2343	fs->free_clust = LD_DWORD(fs->win + FSI_Free_Count);
emilmont	1:46ce1e16c870	2344	#endif
mbed_official	5:b3b3370574cf	2345	#if (_FS_NOFSINFO & 2) == 0
mbed_official	5:b3b3370574cf	2346	fs->last_clust = LD_DWORD(fs->win + FSI_Nxt_Free);
mbed_official	5:b3b3370574cf	2347	#endif
mbed_official	5:b3b3370574cf	2348	}
mbed_official	5:b3b3370574cf	2349	}
mbed_official	5:b3b3370574cf	2350	#endif
mbed_official	5:b3b3370574cf	2351	#endif
mbed_official	5:b3b3370574cf	2352	fs->fs_type = fmt; /* FAT sub-type */
mbed_official	5:b3b3370574cf	2353	fs->id = ++Fsid; /* File system mount ID */
emilmont	1:46ce1e16c870	2354	#if _FS_RPATH
mbed_official	5:b3b3370574cf	2355	fs->cdir = 0; /* Set current directory to root */
emilmont	1:46ce1e16c870	2356	#endif
mbed_official	5:b3b3370574cf	2357	#if _FS_LOCK /* Clear file lock semaphores */
mbed_official	5:b3b3370574cf	2358	clear_lock(fs);
emilmont	1:46ce1e16c870	2359	#endif
emilmont	1:46ce1e16c870	2360
mbed_official	5:b3b3370574cf	2361	return FR_OK;
emilmont	1:46ce1e16c870	2362	}
emilmont	1:46ce1e16c870	2363
emilmont	1:46ce1e16c870	2364
emilmont	1:46ce1e16c870	2365
emilmont	1:46ce1e16c870	2366
emilmont	1:46ce1e16c870	2367	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2368	/* Check if the file/directory object is valid or not */
emilmont	1:46ce1e16c870	2369	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2370
emilmont	1:46ce1e16c870	2371	static
mbed_official	5:b3b3370574cf	2372	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
mbed_official	5:b3b3370574cf	2373	void* obj /* Pointer to the object FIL/FATFS_DIR to check validity */
emilmont	1:46ce1e16c870	2374	)
emilmont	1:46ce1e16c870	2375	{
mbed_official	5:b3b3370574cf	2376	FIL fil = (FIL)obj; /* Assuming offset of .fs and .id in the FIL/FATFS_DIR structure is identical */
mbed_official	5:b3b3370574cf	2377
mbed_official	5:b3b3370574cf	2378
mbed_official	6:a5fcdbf92056	2379	if (!fil \|\| !fil->fs \|\| !fil->fs->fs_type \|\| fil->fs->id != fil->id \|\| (disk_status(fil->fs->drv) & STA_NOINIT))
mbed_official	5:b3b3370574cf	2380	return FR_INVALID_OBJECT;
mbed_official	5:b3b3370574cf	2381
mbed_official	5:b3b3370574cf	2382	ENTER_FF(fil->fs); /* Lock file system */
mbed_official	5:b3b3370574cf	2383
mbed_official	5:b3b3370574cf	2384	return FR_OK;
emilmont	1:46ce1e16c870	2385	}
emilmont	1:46ce1e16c870	2386
emilmont	1:46ce1e16c870	2387
emilmont	1:46ce1e16c870	2388
emilmont	1:46ce1e16c870	2389
emilmont	1:46ce1e16c870	2390	/*--------------------------------------------------------------------------
emilmont	1:46ce1e16c870	2391
emilmont	1:46ce1e16c870	2392	Public Functions
emilmont	1:46ce1e16c870	2393
mbed_official	6:a5fcdbf92056	2394	---------------------------------------------------------------------------*/
emilmont	1:46ce1e16c870	2395
emilmont	1:46ce1e16c870	2396
emilmont	1:46ce1e16c870	2397
emilmont	1:46ce1e16c870	2398	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2399	/* Mount/Unmount a Logical Drive */
emilmont	1:46ce1e16c870	2400	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2401
emilmont	1:46ce1e16c870	2402	FRESULT f_mount (
mbed_official	5:b3b3370574cf	2403	FATFS* fs, /* Pointer to the file system object (NULL:unmount)*/
mbed_official	5:b3b3370574cf	2404	const TCHAR* path, /* Logical drive number to be mounted/unmounted */
mbed_official	5:b3b3370574cf	2405	BYTE opt /* 0:Do not mount (delayed mount), 1:Mount immediately */
emilmont	1:46ce1e16c870	2406	)
emilmont	1:46ce1e16c870	2407	{
mbed_official	5:b3b3370574cf	2408	FATFS *cfs;
mbed_official	5:b3b3370574cf	2409	int vol;
mbed_official	5:b3b3370574cf	2410	FRESULT res;
mbed_official	5:b3b3370574cf	2411	const TCHAR *rp = path;
mbed_official	5:b3b3370574cf	2412
mbed_official	5:b3b3370574cf	2413
mbed_official	5:b3b3370574cf	2414	vol = get_ldnumber(&rp);
mbed_official	5:b3b3370574cf	2415	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	2416	cfs = FatFs[vol]; /* Pointer to fs object */
mbed_official	5:b3b3370574cf	2417
mbed_official	5:b3b3370574cf	2418	if (cfs) {
emilmont	1:46ce1e16c870	2419	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2420	clear_lock(cfs);
emilmont	1:46ce1e16c870	2421	#endif
mbed_official	5:b3b3370574cf	2422	#if _FS_REENTRANT /* Discard sync object of the current volume */
mbed_official	5:b3b3370574cf	2423	if (!ff_del_syncobj(cfs->sobj)) return FR_INT_ERR;
emilmont	1:46ce1e16c870	2424	#endif
mbed_official	5:b3b3370574cf	2425	cfs->fs_type = 0; /* Clear old fs object */
mbed_official	5:b3b3370574cf	2426	}
mbed_official	5:b3b3370574cf	2427
mbed_official	5:b3b3370574cf	2428	if (fs) {
mbed_official	5:b3b3370574cf	2429	fs->fs_type = 0; /* Clear new fs object */
mbed_official	5:b3b3370574cf	2430	#if _FS_REENTRANT /* Create sync object for the new volume */
mbed_official	5:b3b3370574cf	2431	if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR;
emilmont	1:46ce1e16c870	2432	#endif
mbed_official	5:b3b3370574cf	2433	}
mbed_official	5:b3b3370574cf	2434	FatFs[vol] = fs; /* Register new fs object */
mbed_official	5:b3b3370574cf	2435
mbed_official	5:b3b3370574cf	2436	if (!fs \|\| opt != 1) return FR_OK; /* Do not mount now, it will be mounted later */
mbed_official	5:b3b3370574cf	2437
mbed_official	5:b3b3370574cf	2438	res = find_volume(&fs, &path, 0); /* Force mounted the volume */
mbed_official	5:b3b3370574cf	2439	LEAVE_FF(fs, res);
emilmont	1:46ce1e16c870	2440	}
emilmont	1:46ce1e16c870	2441
emilmont	1:46ce1e16c870	2442
emilmont	1:46ce1e16c870	2443
emilmont	1:46ce1e16c870	2444
emilmont	1:46ce1e16c870	2445	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2446	/* Open or Create a File */
emilmont	1:46ce1e16c870	2447	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2448
emilmont	1:46ce1e16c870	2449	FRESULT f_open (
mbed_official	5:b3b3370574cf	2450	FIL* fp, /* Pointer to the blank file object */
mbed_official	5:b3b3370574cf	2451	const TCHAR* path, /* Pointer to the file name */
mbed_official	5:b3b3370574cf	2452	BYTE mode /* Access mode and file open mode flags */
emilmont	1:46ce1e16c870	2453	)
emilmont	1:46ce1e16c870	2454	{
mbed_official	5:b3b3370574cf	2455	FRESULT res;
mbed_official	5:b3b3370574cf	2456	FATFS_DIR dj;
mbed_official	6:a5fcdbf92056	2457	BYTE *dir;
mbed_official	5:b3b3370574cf	2458	DEFINE_NAMEBUF;
emilmont	1:46ce1e16c870	2459	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2460	DWORD dw, cl;
mbed_official	5:b3b3370574cf	2461	#endif
mbed_official	5:b3b3370574cf	2462
mbed_official	5:b3b3370574cf	2463
mbed_official	5:b3b3370574cf	2464	if (!fp) return FR_INVALID_OBJECT;
mbed_official	5:b3b3370574cf	2465	fp->fs = 0; /* Clear file object */
mbed_official	5:b3b3370574cf	2466
mbed_official	5:b3b3370574cf	2467	/* Get logical drive number */
mbed_official	5:b3b3370574cf	2468	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2469	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
mbed_official	5:b3b3370574cf	2470	res = find_volume(&dj.fs, &path, (BYTE)(mode & ~FA_READ));
emilmont	1:46ce1e16c870	2471	#else
mbed_official	5:b3b3370574cf	2472	mode &= FA_READ;
mbed_official	5:b3b3370574cf	2473	res = find_volume(&dj.fs, &path, 0);
emilmont	1:46ce1e16c870	2474	#endif
mbed_official	5:b3b3370574cf	2475	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2476	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	2477	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	6:a5fcdbf92056	2478	dir = dj.dir;
mbed_official	5:b3b3370574cf	2479	#if !_FS_READONLY /* R/W configuration */
mbed_official	5:b3b3370574cf	2480	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	2481	if (!dir) /* Default directory itself */
mbed_official	5:b3b3370574cf	2482	res = FR_INVALID_NAME;
emilmont	1:46ce1e16c870	2483	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2484	else
mbed_official	5:b3b3370574cf	2485	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
emilmont	1:46ce1e16c870	2486	#endif
mbed_official	5:b3b3370574cf	2487	}
mbed_official	5:b3b3370574cf	2488	/* Create or Open a file */
mbed_official	5:b3b3370574cf	2489	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
mbed_official	5:b3b3370574cf	2490	if (res != FR_OK) { /* No file, create new */
mbed_official	5:b3b3370574cf	2491	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
emilmont	1:46ce1e16c870	2492	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2493	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
emilmont	1:46ce1e16c870	2494	#else
mbed_official	5:b3b3370574cf	2495	res = dir_register(&dj);
emilmont	1:46ce1e16c870	2496	#endif
mbed_official	5:b3b3370574cf	2497	mode \|= FA_CREATE_ALWAYS; /* File is created */
mbed_official	6:a5fcdbf92056	2498	dir = dj.dir; /* New entry */
mbed_official	5:b3b3370574cf	2499	}
mbed_official	5:b3b3370574cf	2500	else { /* Any object is already existing */
mbed_official	6:a5fcdbf92056	2501	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or FATFS_DIR) */
mbed_official	5:b3b3370574cf	2502	res = FR_DENIED;
mbed_official	5:b3b3370574cf	2503	} else {
mbed_official	5:b3b3370574cf	2504	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
mbed_official	5:b3b3370574cf	2505	res = FR_EXIST;
mbed_official	5:b3b3370574cf	2506	}
mbed_official	5:b3b3370574cf	2507	}
mbed_official	5:b3b3370574cf	2508	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
mbed_official	6:a5fcdbf92056	2509	dw = GET_FATTIME();
mbed_official	6:a5fcdbf92056	2510	ST_DWORD(dir + DIR_CrtTime, dw);/* Set created time */
mbed_official	6:a5fcdbf92056	2511	ST_DWORD(dir + DIR_WrtTime, dw);/* Set modified time */
mbed_official	6:a5fcdbf92056	2512	dir[DIR_Attr] = 0; /* Reset attribute */
mbed_official	6:a5fcdbf92056	2513	ST_DWORD(dir + DIR_FileSize, 0);/* Reset file size */
mbed_official	6:a5fcdbf92056	2514	cl = ld_clust(dj.fs, dir); /* Get cluster chain */
mbed_official	6:a5fcdbf92056	2515	st_clust(dir, 0); /* Reset cluster */
mbed_official	5:b3b3370574cf	2516	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	2517	if (cl) { /* Remove the cluster chain if exist */
mbed_official	5:b3b3370574cf	2518	dw = dj.fs->winsect;
mbed_official	5:b3b3370574cf	2519	res = remove_chain(dj.fs, cl);
mbed_official	5:b3b3370574cf	2520	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2521	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
mbed_official	5:b3b3370574cf	2522	res = move_window(dj.fs, dw);
mbed_official	5:b3b3370574cf	2523	}
mbed_official	5:b3b3370574cf	2524	}
mbed_official	5:b3b3370574cf	2525	}
mbed_official	5:b3b3370574cf	2526	}
mbed_official	5:b3b3370574cf	2527	else { /* Open an existing file */
mbed_official	6:a5fcdbf92056	2528	if (res == FR_OK) { /* Following succeeded */
mbed_official	6:a5fcdbf92056	2529	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
mbed_official	5:b3b3370574cf	2530	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	2531	} else {
mbed_official	6:a5fcdbf92056	2532	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
mbed_official	5:b3b3370574cf	2533	res = FR_DENIED;
mbed_official	5:b3b3370574cf	2534	}
mbed_official	5:b3b3370574cf	2535	}
mbed_official	5:b3b3370574cf	2536	}
mbed_official	5:b3b3370574cf	2537	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2538	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
mbed_official	5:b3b3370574cf	2539	mode \|= FA__WRITTEN;
mbed_official	5:b3b3370574cf	2540	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
mbed_official	6:a5fcdbf92056	2541	fp->dir_ptr = dir;
emilmont	1:46ce1e16c870	2542	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2543	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
mbed_official	5:b3b3370574cf	2544	if (!fp->lockid) res = FR_INT_ERR;
emilmont	1:46ce1e16c870	2545	#endif
mbed_official	5:b3b3370574cf	2546	}
mbed_official	5:b3b3370574cf	2547
mbed_official	5:b3b3370574cf	2548	#else /* R/O configuration */
mbed_official	5:b3b3370574cf	2549	if (res == FR_OK) { /* Follow succeeded */
mbed_official	6:a5fcdbf92056	2550	dir = dj.dir;
mbed_official	6:a5fcdbf92056	2551	if (!dir) { /* Current directory itself */
mbed_official	5:b3b3370574cf	2552	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	2553	} else {
mbed_official	6:a5fcdbf92056	2554	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
mbed_official	5:b3b3370574cf	2555	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	2556	}
mbed_official	5:b3b3370574cf	2557	}
emilmont	1:46ce1e16c870	2558	#endif
mbed_official	5:b3b3370574cf	2559	FREE_BUF();
mbed_official	5:b3b3370574cf	2560
mbed_official	5:b3b3370574cf	2561	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2562	fp->flag = mode; /* File access mode */
mbed_official	5:b3b3370574cf	2563	fp->err = 0; /* Clear error flag */
mbed_official	6:a5fcdbf92056	2564	fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
mbed_official	6:a5fcdbf92056	2565	fp->fsize = LD_DWORD(dir + DIR_FileSize); /* File size */
mbed_official	5:b3b3370574cf	2566	fp->fptr = 0; /* File pointer */
mbed_official	5:b3b3370574cf	2567	fp->dsect = 0;
emilmont	1:46ce1e16c870	2568	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	2569	fp->cltbl = 0; /* Normal seek mode */
emilmont	1:46ce1e16c870	2570	#endif
mbed_official	5:b3b3370574cf	2571	fp->fs = dj.fs; /* Validate file object */
mbed_official	5:b3b3370574cf	2572	fp->id = fp->fs->id;
mbed_official	5:b3b3370574cf	2573	}
mbed_official	5:b3b3370574cf	2574	}
mbed_official	5:b3b3370574cf	2575
mbed_official	5:b3b3370574cf	2576	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	2577	}
emilmont	1:46ce1e16c870	2578
emilmont	1:46ce1e16c870	2579
emilmont	1:46ce1e16c870	2580
emilmont	1:46ce1e16c870	2581
emilmont	1:46ce1e16c870	2582	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2583	/* Read File */
emilmont	1:46ce1e16c870	2584	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2585
emilmont	1:46ce1e16c870	2586	FRESULT f_read (
mbed_official	5:b3b3370574cf	2587	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	2588	void* buff, /* Pointer to data buffer */
mbed_official	5:b3b3370574cf	2589	UINT btr, /* Number of bytes to read */
mbed_official	5:b3b3370574cf	2590	UINT* br /* Pointer to number of bytes read */
emilmont	1:46ce1e16c870	2591	)
emilmont	1:46ce1e16c870	2592	{
mbed_official	5:b3b3370574cf	2593	FRESULT res;
mbed_official	5:b3b3370574cf	2594	DWORD clst, sect, remain;
mbed_official	5:b3b3370574cf	2595	UINT rcnt, cc;
mbed_official	5:b3b3370574cf	2596	BYTE csect, rbuff = (BYTE)buff;
mbed_official	5:b3b3370574cf	2597
mbed_official	5:b3b3370574cf	2598
mbed_official	5:b3b3370574cf	2599	br = 0; / Clear read byte counter */
mbed_official	5:b3b3370574cf	2600
mbed_official	5:b3b3370574cf	2601	res = validate(fp); /* Check validity */
mbed_official	5:b3b3370574cf	2602	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	2603	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	2604	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mbed_official	5:b3b3370574cf	2605	if (!(fp->flag & FA_READ)) /* Check access mode */
mbed_official	5:b3b3370574cf	2606	LEAVE_FF(fp->fs, FR_DENIED);
mbed_official	5:b3b3370574cf	2607	remain = fp->fsize - fp->fptr;
mbed_official	5:b3b3370574cf	2608	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
mbed_official	5:b3b3370574cf	2609
mbed_official	5:b3b3370574cf	2610	for ( ; btr; /* Repeat until all data read */
mbed_official	5:b3b3370574cf	2611	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
mbed_official	5:b3b3370574cf	2612	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mbed_official	5:b3b3370574cf	2613	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mbed_official	5:b3b3370574cf	2614	if (!csect) { /* On the cluster boundary? */
mbed_official	5:b3b3370574cf	2615	if (fp->fptr == 0) { /* On the top of the file? */
mbed_official	5:b3b3370574cf	2616	clst = fp->sclust; /* Follow from the origin */
mbed_official	5:b3b3370574cf	2617	} else { /* Middle or end of the file */
emilmont	1:46ce1e16c870	2618	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	2619	if (fp->cltbl)
mbed_official	5:b3b3370574cf	2620	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mbed_official	5:b3b3370574cf	2621	else
emilmont	1:46ce1e16c870	2622	#endif
mbed_official	5:b3b3370574cf	2623	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
mbed_official	5:b3b3370574cf	2624	}
mbed_official	5:b3b3370574cf	2625	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2626	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2627	fp->clust = clst; /* Update current cluster */
mbed_official	5:b3b3370574cf	2628	}
mbed_official	5:b3b3370574cf	2629	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mbed_official	5:b3b3370574cf	2630	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2631	sect += csect;
mbed_official	5:b3b3370574cf	2632	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
mbed_official	5:b3b3370574cf	2633	if (cc) { /* Read maximum contiguous sectors directly */
mbed_official	5:b3b3370574cf	2634	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mbed_official	5:b3b3370574cf	2635	cc = fp->fs->csize - csect;
mbed_official	5:b3b3370574cf	2636	if (disk_read(fp->fs->drv, rbuff, sect, cc) != RES_OK)
mbed_official	5:b3b3370574cf	2637	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2638	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
emilmont	1:46ce1e16c870	2639	#if _FS_TINY
mbed_official	5:b3b3370574cf	2640	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
mbed_official	5:b3b3370574cf	2641	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
emilmont	1:46ce1e16c870	2642	#else
mbed_official	5:b3b3370574cf	2643	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
mbed_official	5:b3b3370574cf	2644	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
emilmont	1:46ce1e16c870	2645	#endif
emilmont	1:46ce1e16c870	2646	#endif
mbed_official	5:b3b3370574cf	2647	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mbed_official	5:b3b3370574cf	2648	continue;
mbed_official	5:b3b3370574cf	2649	}
emilmont	1:46ce1e16c870	2650	#if !_FS_TINY
mbed_official	5:b3b3370574cf	2651	if (fp->dsect != sect) { /* Load data sector if not in cache */
emilmont	1:46ce1e16c870	2652	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2653	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mbed_official	5:b3b3370574cf	2654	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2655	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2656	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2657	}
emilmont	1:46ce1e16c870	2658	#endif
mbed_official	5:b3b3370574cf	2659	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
mbed_official	5:b3b3370574cf	2660	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2661	}
emilmont	1:46ce1e16c870	2662	#endif
mbed_official	5:b3b3370574cf	2663	fp->dsect = sect;
mbed_official	5:b3b3370574cf	2664	}
mbed_official	5:b3b3370574cf	2665	rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
mbed_official	5:b3b3370574cf	2666	if (rcnt > btr) rcnt = btr;
emilmont	1:46ce1e16c870	2667	#if _FS_TINY
mbed_official	5:b3b3370574cf	2668	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
mbed_official	5:b3b3370574cf	2669	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2670	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
emilmont	1:46ce1e16c870	2671	#else
mbed_official	5:b3b3370574cf	2672	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
emilmont	1:46ce1e16c870	2673	#endif
mbed_official	5:b3b3370574cf	2674	}
mbed_official	5:b3b3370574cf	2675
mbed_official	5:b3b3370574cf	2676	LEAVE_FF(fp->fs, FR_OK);
emilmont	1:46ce1e16c870	2677	}
emilmont	1:46ce1e16c870	2678
emilmont	1:46ce1e16c870	2679
emilmont	1:46ce1e16c870	2680
emilmont	1:46ce1e16c870	2681
emilmont	1:46ce1e16c870	2682	#if !_FS_READONLY
emilmont	1:46ce1e16c870	2683	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2684	/* Write File */
emilmont	1:46ce1e16c870	2685	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2686
emilmont	1:46ce1e16c870	2687	FRESULT f_write (
mbed_official	5:b3b3370574cf	2688	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	2689	const void buff, / Pointer to the data to be written */
mbed_official	5:b3b3370574cf	2690	UINT btw, /* Number of bytes to write */
mbed_official	5:b3b3370574cf	2691	UINT* bw /* Pointer to number of bytes written */
emilmont	1:46ce1e16c870	2692	)
emilmont	1:46ce1e16c870	2693	{
mbed_official	5:b3b3370574cf	2694	FRESULT res;
mbed_official	5:b3b3370574cf	2695	DWORD clst, sect;
mbed_official	5:b3b3370574cf	2696	UINT wcnt, cc;
mbed_official	5:b3b3370574cf	2697	const BYTE wbuff = (const BYTE)buff;
mbed_official	5:b3b3370574cf	2698	BYTE csect;
mbed_official	5:b3b3370574cf	2699	bool need_sync = false;
mbed_official	5:b3b3370574cf	2700
mbed_official	5:b3b3370574cf	2701	bw = 0; / Clear write byte counter */
mbed_official	5:b3b3370574cf	2702
mbed_official	5:b3b3370574cf	2703	res = validate(fp); /* Check validity */
mbed_official	5:b3b3370574cf	2704	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	2705	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	2706	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mbed_official	5:b3b3370574cf	2707	if (!(fp->flag & FA_WRITE)) /* Check access mode */
mbed_official	5:b3b3370574cf	2708	LEAVE_FF(fp->fs, FR_DENIED);
mbed_official	5:b3b3370574cf	2709	if (fp->fptr + btw < fp->fptr) btw = 0; /* File size cannot reach 4GB */
mbed_official	5:b3b3370574cf	2710
mbed_official	5:b3b3370574cf	2711	for ( ; btw; /* Repeat until all data written */
mbed_official	5:b3b3370574cf	2712	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
mbed_official	5:b3b3370574cf	2713	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mbed_official	5:b3b3370574cf	2714	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mbed_official	5:b3b3370574cf	2715	if (!csect) { /* On the cluster boundary? */
mbed_official	5:b3b3370574cf	2716	if (fp->fptr == 0) { /* On the top of the file? */
mbed_official	5:b3b3370574cf	2717	clst = fp->sclust; /* Follow from the origin */
mbed_official	5:b3b3370574cf	2718	if (clst == 0) /* When no cluster is allocated, */
mbed_official	5:b3b3370574cf	2719	clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
mbed_official	5:b3b3370574cf	2720	} else { /* Middle or end of the file */
emilmont	1:46ce1e16c870	2721	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	2722	if (fp->cltbl)
mbed_official	5:b3b3370574cf	2723	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mbed_official	5:b3b3370574cf	2724	else
emilmont	1:46ce1e16c870	2725	#endif
mbed_official	5:b3b3370574cf	2726	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
mbed_official	5:b3b3370574cf	2727	}
mbed_official	5:b3b3370574cf	2728	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
mbed_official	5:b3b3370574cf	2729	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2730	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2731	fp->clust = clst; /* Update current cluster */
mbed_official	5:b3b3370574cf	2732	if (fp->sclust == 0) fp->sclust = clst; /* Set start cluster if the first write */
mbed_official	5:b3b3370574cf	2733
mbed_official	6:a5fcdbf92056	2734	#if FLUSH_ON_NEW_CLUSTER
mbed_official	4:3ff2606d5713	2735	// We do not need to flush for the first cluster
mbed_official	4:3ff2606d5713	2736	if (fp->fptr != 0) {
mbed_official	4:3ff2606d5713	2737	need_sync = true;
mbed_official	4:3ff2606d5713	2738	}
mbed_official	4:3ff2606d5713	2739	#endif
mbed_official	5:b3b3370574cf	2740	}
emilmont	1:46ce1e16c870	2741	#if _FS_TINY
mbed_official	5:b3b3370574cf	2742	if (fp->fs->winsect == fp->dsect && sync_window(fp->fs)) /* Write-back sector cache */
mbed_official	5:b3b3370574cf	2743	ABORT(fp->fs, FR_DISK_ERR);
emilmont	1:46ce1e16c870	2744	#else
mbed_official	5:b3b3370574cf	2745	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
mbed_official	5:b3b3370574cf	2746	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2747	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2748	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2749	}
emilmont	1:46ce1e16c870	2750	#endif
mbed_official	5:b3b3370574cf	2751	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mbed_official	5:b3b3370574cf	2752	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2753	sect += csect;
mbed_official	5:b3b3370574cf	2754	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
mbed_official	5:b3b3370574cf	2755	if (cc) { /* Write maximum contiguous sectors directly */
mbed_official	5:b3b3370574cf	2756	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mbed_official	5:b3b3370574cf	2757	cc = fp->fs->csize - csect;
mbed_official	5:b3b3370574cf	2758	if (disk_write(fp->fs->drv, wbuff, sect, cc) != RES_OK)
mbed_official	5:b3b3370574cf	2759	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2760	#if _FS_MINIMIZE <= 2
emilmont	1:46ce1e16c870	2761	#if _FS_TINY
mbed_official	5:b3b3370574cf	2762	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mbed_official	5:b3b3370574cf	2763	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
mbed_official	5:b3b3370574cf	2764	fp->fs->wflag = 0;
mbed_official	5:b3b3370574cf	2765	}
emilmont	1:46ce1e16c870	2766	#else
mbed_official	5:b3b3370574cf	2767	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mbed_official	5:b3b3370574cf	2768	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
mbed_official	5:b3b3370574cf	2769	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2770	}
emilmont	1:46ce1e16c870	2771	#endif
mbed_official	5:b3b3370574cf	2772	#endif
mbed_official	5:b3b3370574cf	2773	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mbed_official	6:a5fcdbf92056	2774	#if FLUSH_ON_NEW_SECTOR
mbed_official	4:3ff2606d5713	2775	need_sync = true;
mbed_official	4:3ff2606d5713	2776	#endif
mbed_official	5:b3b3370574cf	2777	continue;
mbed_official	5:b3b3370574cf	2778	}
emilmont	1:46ce1e16c870	2779	#if _FS_TINY
mbed_official	5:b3b3370574cf	2780	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
mbed_official	5:b3b3370574cf	2781	if (sync_window(fp->fs)) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2782	fp->fs->winsect = sect;
mbed_official	5:b3b3370574cf	2783	}
emilmont	1:46ce1e16c870	2784	#else
mbed_official	5:b3b3370574cf	2785	if (fp->dsect != sect) { /* Fill sector cache with file data */
mbed_official	5:b3b3370574cf	2786	if (fp->fptr < fp->fsize &&
mbed_official	5:b3b3370574cf	2787	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2788	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2789	}
emilmont	1:46ce1e16c870	2790	#endif
mbed_official	5:b3b3370574cf	2791	fp->dsect = sect;
mbed_official	5:b3b3370574cf	2792	}
mbed_official	5:b3b3370574cf	2793	wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
mbed_official	5:b3b3370574cf	2794	if (wcnt > btw) wcnt = btw;
emilmont	1:46ce1e16c870	2795	#if _FS_TINY
mbed_official	5:b3b3370574cf	2796	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
mbed_official	5:b3b3370574cf	2797	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2798	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mbed_official	5:b3b3370574cf	2799	fp->fs->wflag = 1;
emilmont	1:46ce1e16c870	2800	#else
mbed_official	5:b3b3370574cf	2801	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mbed_official	5:b3b3370574cf	2802	fp->flag \|= FA__DIRTY;
emilmont	1:46ce1e16c870	2803	#endif
mbed_official	5:b3b3370574cf	2804	}
mbed_official	5:b3b3370574cf	2805
mbed_official	5:b3b3370574cf	2806	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
mbed_official	5:b3b3370574cf	2807	fp->flag \|= FA__WRITTEN; /* Set file change flag */
mbed_official	5:b3b3370574cf	2808
mbed_official	5:b3b3370574cf	2809	if (need_sync) {
mbed_official	4:3ff2606d5713	2810	f_sync (fp);
mbed_official	4:3ff2606d5713	2811	}
mbed_official	6:a5fcdbf92056	2812
mbed_official	5:b3b3370574cf	2813	LEAVE_FF(fp->fs, FR_OK);
emilmont	1:46ce1e16c870	2814	}
emilmont	1:46ce1e16c870	2815
emilmont	1:46ce1e16c870	2816
emilmont	1:46ce1e16c870	2817
emilmont	1:46ce1e16c870	2818
emilmont	1:46ce1e16c870	2819	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2820	/* Synchronize the File */
emilmont	1:46ce1e16c870	2821	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2822
emilmont	1:46ce1e16c870	2823	FRESULT f_sync (
mbed_official	5:b3b3370574cf	2824	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	2825	)
emilmont	1:46ce1e16c870	2826	{
mbed_official	5:b3b3370574cf	2827	FRESULT res;
mbed_official	5:b3b3370574cf	2828	DWORD tm;
mbed_official	6:a5fcdbf92056	2829	BYTE *dir;
mbed_official	5:b3b3370574cf	2830
mbed_official	5:b3b3370574cf	2831
mbed_official	5:b3b3370574cf	2832	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	2833	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	2834	if (fp->flag & FA__WRITTEN) { /* Is there any change to the file? */
mbed_official	5:b3b3370574cf	2835	#if !_FS_TINY
mbed_official	6:a5fcdbf92056	2836	if (fp->flag & FA__DIRTY) { /* Write-back cached data if needed */
mbed_official	5:b3b3370574cf	2837	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2838	LEAVE_FF(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2839	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2840	}
emilmont	1:46ce1e16c870	2841	#endif
mbed_official	5:b3b3370574cf	2842	/* Update the directory entry */
mbed_official	5:b3b3370574cf	2843	res = move_window(fp->fs, fp->dir_sect);
mbed_official	5:b3b3370574cf	2844	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	2845	dir = fp->dir_ptr;
mbed_official	6:a5fcdbf92056	2846	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
mbed_official	6:a5fcdbf92056	2847	ST_DWORD(dir + DIR_FileSize, fp->fsize); /* Update file size */
mbed_official	6:a5fcdbf92056	2848	st_clust(dir, fp->sclust); /* Update start cluster */
mbed_official	6:a5fcdbf92056	2849	tm = GET_FATTIME(); /* Update modified time */
mbed_official	6:a5fcdbf92056	2850	ST_DWORD(dir + DIR_WrtTime, tm);
mbed_official	6:a5fcdbf92056	2851	ST_WORD(dir + DIR_LstAccDate, 0);
mbed_official	5:b3b3370574cf	2852	fp->flag &= ~FA__WRITTEN;
mbed_official	5:b3b3370574cf	2853	fp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	2854	res = sync_fs(fp->fs);
mbed_official	5:b3b3370574cf	2855	}
mbed_official	5:b3b3370574cf	2856	}
mbed_official	5:b3b3370574cf	2857	}
mbed_official	5:b3b3370574cf	2858
mbed_official	5:b3b3370574cf	2859	LEAVE_FF(fp->fs, res);
emilmont	1:46ce1e16c870	2860	}
emilmont	1:46ce1e16c870	2861
emilmont	1:46ce1e16c870	2862	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	2863
emilmont	1:46ce1e16c870	2864
emilmont	1:46ce1e16c870	2865
emilmont	1:46ce1e16c870	2866
emilmont	1:46ce1e16c870	2867	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2868	/* Close File */
emilmont	1:46ce1e16c870	2869	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2870
emilmont	1:46ce1e16c870	2871	FRESULT f_close (
mbed_official	5:b3b3370574cf	2872	FIL fp / Pointer to the file object to be closed */
emilmont	1:46ce1e16c870	2873	)
emilmont	1:46ce1e16c870	2874	{
mbed_official	5:b3b3370574cf	2875	FRESULT res;
mbed_official	5:b3b3370574cf	2876
mbed_official	5:b3b3370574cf	2877
mbed_official	5:b3b3370574cf	2878	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2879	res = f_sync(fp); /* Flush cached data */
mbed_official	5:b3b3370574cf	2880	if (res == FR_OK)
mbed_official	5:b3b3370574cf	2881	#endif
mbed_official	5:b3b3370574cf	2882	{
mbed_official	5:b3b3370574cf	2883	res = validate(fp); /* Lock volume */
mbed_official	5:b3b3370574cf	2884	if (res == FR_OK) {
emilmont	1:46ce1e16c870	2885	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	2886	FATFS *fs = fp->fs;
emilmont	1:46ce1e16c870	2887	#endif
emilmont	1:46ce1e16c870	2888	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2889	res = dec_lock(fp->lockid); /* Decrement file open counter */
mbed_official	5:b3b3370574cf	2890	if (res == FR_OK)
mbed_official	5:b3b3370574cf	2891	#endif
mbed_official	5:b3b3370574cf	2892	fp->fs = 0; /* Invalidate file object */
emilmont	1:46ce1e16c870	2893	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	2894	unlock_fs(fs, FR_OK); /* Unlock volume */
emilmont	1:46ce1e16c870	2895	#endif
mbed_official	5:b3b3370574cf	2896	}
mbed_official	5:b3b3370574cf	2897	}
mbed_official	5:b3b3370574cf	2898	return res;
emilmont	1:46ce1e16c870	2899	}
emilmont	1:46ce1e16c870	2900
emilmont	1:46ce1e16c870	2901
emilmont	1:46ce1e16c870	2902
emilmont	1:46ce1e16c870	2903
emilmont	1:46ce1e16c870	2904	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2905	/* Change Current Directory or Current Drive, Get Current Directory */
emilmont	1:46ce1e16c870	2906	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2907
emilmont	1:46ce1e16c870	2908	#if _FS_RPATH >= 1
mbed_official	5:b3b3370574cf	2909	#if _VOLUMES >= 2
emilmont	1:46ce1e16c870	2910	FRESULT f_chdrive (
mbed_official	5:b3b3370574cf	2911	const TCHAR* path /* Drive number */
emilmont	1:46ce1e16c870	2912	)
emilmont	1:46ce1e16c870	2913	{
mbed_official	5:b3b3370574cf	2914	int vol;
mbed_official	5:b3b3370574cf	2915
mbed_official	5:b3b3370574cf	2916
mbed_official	5:b3b3370574cf	2917	vol = get_ldnumber(&path);
mbed_official	5:b3b3370574cf	2918	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	2919
mbed_official	5:b3b3370574cf	2920	CurrVol = (BYTE)vol;
mbed_official	5:b3b3370574cf	2921
mbed_official	5:b3b3370574cf	2922	return FR_OK;
emilmont	1:46ce1e16c870	2923	}
mbed_official	5:b3b3370574cf	2924	#endif
emilmont	1:46ce1e16c870	2925
emilmont	1:46ce1e16c870	2926
emilmont	1:46ce1e16c870	2927	FRESULT f_chdir (
mbed_official	5:b3b3370574cf	2928	const TCHAR* path /* Pointer to the directory path */
emilmont	1:46ce1e16c870	2929	)
emilmont	1:46ce1e16c870	2930	{
mbed_official	5:b3b3370574cf	2931	FRESULT res;
mbed_official	5:b3b3370574cf	2932	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	2933	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	2934
mbed_official	5:b3b3370574cf	2935
mbed_official	5:b3b3370574cf	2936	/* Get logical drive number */
mbed_official	5:b3b3370574cf	2937	res = find_volume(&dj.fs, &path, 0);
mbed_official	5:b3b3370574cf	2938	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2939	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	2940	res = follow_path(&dj, path); /* Follow the path */
mbed_official	5:b3b3370574cf	2941	FREE_BUF();
mbed_official	5:b3b3370574cf	2942	if (res == FR_OK) { /* Follow completed */
mbed_official	6:a5fcdbf92056	2943	if (!dj.dir) {
mbed_official	5:b3b3370574cf	2944	dj.fs->cdir = dj.sclust; /* Start directory itself */
mbed_official	5:b3b3370574cf	2945	} else {
mbed_official	6:a5fcdbf92056	2946	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
mbed_official	6:a5fcdbf92056	2947	dj.fs->cdir = ld_clust(dj.fs, dj.dir);
mbed_official	5:b3b3370574cf	2948	else
mbed_official	5:b3b3370574cf	2949	res = FR_NO_PATH; /* Reached but a file */
mbed_official	5:b3b3370574cf	2950	}
mbed_official	5:b3b3370574cf	2951	}
mbed_official	5:b3b3370574cf	2952	if (res == FR_NO_FILE) res = FR_NO_PATH;
mbed_official	5:b3b3370574cf	2953	}
mbed_official	5:b3b3370574cf	2954
mbed_official	5:b3b3370574cf	2955	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	2956	}
emilmont	1:46ce1e16c870	2957
emilmont	1:46ce1e16c870	2958
emilmont	1:46ce1e16c870	2959	#if _FS_RPATH >= 2
emilmont	1:46ce1e16c870	2960	FRESULT f_getcwd (
mbed_official	5:b3b3370574cf	2961	TCHAR* buff, /* Pointer to the directory path */
mbed_official	5:b3b3370574cf	2962	UINT len /* Size of path */
emilmont	1:46ce1e16c870	2963	)
emilmont	1:46ce1e16c870	2964	{
mbed_official	5:b3b3370574cf	2965	FRESULT res;
mbed_official	5:b3b3370574cf	2966	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	2967	UINT i, n;
mbed_official	5:b3b3370574cf	2968	DWORD ccl;
mbed_official	5:b3b3370574cf	2969	TCHAR *tp;
mbed_official	5:b3b3370574cf	2970	FILINFO fno;
mbed_official	5:b3b3370574cf	2971	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	2972
mbed_official	5:b3b3370574cf	2973
mbed_official	5:b3b3370574cf	2974	*buff = 0;
mbed_official	5:b3b3370574cf	2975	/* Get logical drive number */
mbed_official	5:b3b3370574cf	2976	res = find_volume(&dj.fs, (const TCHAR*)&buff, 0); / Get current volume */
mbed_official	5:b3b3370574cf	2977	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2978	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	2979	i = len; /* Bottom of buffer (directory stack base) */
mbed_official	5:b3b3370574cf	2980	dj.sclust = dj.fs->cdir; /* Start to follow upper directory from current directory */
mbed_official	5:b3b3370574cf	2981	while ((ccl = dj.sclust) != 0) { /* Repeat while current directory is a sub-directory */
mbed_official	5:b3b3370574cf	2982	res = dir_sdi(&dj, 1); /* Get parent directory */
mbed_official	5:b3b3370574cf	2983	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	2984	res = dir_read(&dj, 0);
mbed_official	5:b3b3370574cf	2985	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	2986	dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent directory */
mbed_official	5:b3b3370574cf	2987	res = dir_sdi(&dj, 0);
mbed_official	5:b3b3370574cf	2988	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	2989	do { /* Find the entry links to the child directory */
mbed_official	5:b3b3370574cf	2990	res = dir_read(&dj, 0);
mbed_official	5:b3b3370574cf	2991	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	2992	if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
mbed_official	5:b3b3370574cf	2993	res = dir_next(&dj, 0);
mbed_official	5:b3b3370574cf	2994	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	2995	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
mbed_official	5:b3b3370574cf	2996	if (res != FR_OK) break;
emilmont	1:46ce1e16c870	2997	#if _USE_LFN
mbed_official	5:b3b3370574cf	2998	fno.lfname = buff;
mbed_official	5:b3b3370574cf	2999	fno.lfsize = i;
mbed_official	5:b3b3370574cf	3000	#endif
mbed_official	5:b3b3370574cf	3001	get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */
mbed_official	5:b3b3370574cf	3002	tp = fno.fname;
mbed_official	5:b3b3370574cf	3003	#if _USE_LFN
mbed_official	5:b3b3370574cf	3004	if (*buff) tp = buff;
emilmont	1:46ce1e16c870	3005	#endif
mbed_official	5:b3b3370574cf	3006	for (n = 0; tp[n]; n++) ;
mbed_official	5:b3b3370574cf	3007	if (i < n + 3) {
mbed_official	5:b3b3370574cf	3008	res = FR_NOT_ENOUGH_CORE; break;
mbed_official	5:b3b3370574cf	3009	}
mbed_official	5:b3b3370574cf	3010	while (n) buff[--i] = tp[--n];
mbed_official	5:b3b3370574cf	3011	buff[--i] = '/';
mbed_official	5:b3b3370574cf	3012	}
mbed_official	5:b3b3370574cf	3013	tp = buff;
mbed_official	5:b3b3370574cf	3014	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3015	#if _VOLUMES >= 2
mbed_official	5:b3b3370574cf	3016	tp++ = '0' + CurrVol; / Put drive number */
mbed_official	5:b3b3370574cf	3017	*tp++ = ':';
mbed_official	5:b3b3370574cf	3018	#endif
mbed_official	5:b3b3370574cf	3019	if (i == len) { /* Root-directory */
mbed_official	5:b3b3370574cf	3020	*tp++ = '/';
mbed_official	5:b3b3370574cf	3021	} else { /* Sub-directroy */
mbed_official	5:b3b3370574cf	3022	do /* Add stacked path str */
mbed_official	5:b3b3370574cf	3023	*tp++ = buff[i++];
mbed_official	5:b3b3370574cf	3024	while (i < len);
mbed_official	5:b3b3370574cf	3025	}
mbed_official	5:b3b3370574cf	3026	}
mbed_official	5:b3b3370574cf	3027	*tp = 0;
mbed_official	5:b3b3370574cf	3028	FREE_BUF();
mbed_official	5:b3b3370574cf	3029	}
mbed_official	5:b3b3370574cf	3030
mbed_official	5:b3b3370574cf	3031	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3032	}
emilmont	1:46ce1e16c870	3033	#endif /* _FS_RPATH >= 2 */
emilmont	1:46ce1e16c870	3034	#endif /* _FS_RPATH >= 1 */
emilmont	1:46ce1e16c870	3035
emilmont	1:46ce1e16c870	3036
emilmont	1:46ce1e16c870	3037
emilmont	1:46ce1e16c870	3038	#if _FS_MINIMIZE <= 2
emilmont	1:46ce1e16c870	3039	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3040	/* Seek File R/W Pointer */
emilmont	1:46ce1e16c870	3041	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3042
emilmont	1:46ce1e16c870	3043	FRESULT f_lseek (
mbed_official	5:b3b3370574cf	3044	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	3045	DWORD ofs /* File pointer from top of file */
emilmont	1:46ce1e16c870	3046	)
emilmont	1:46ce1e16c870	3047	{
mbed_official	5:b3b3370574cf	3048	FRESULT res;
mbed_official	5:b3b3370574cf	3049	DWORD clst, bcs, nsect, ifptr;
mbed_official	5:b3b3370574cf	3050	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	3051	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
mbed_official	5:b3b3370574cf	3052	#endif
mbed_official	5:b3b3370574cf	3053
mbed_official	5:b3b3370574cf	3054
mbed_official	5:b3b3370574cf	3055	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	3056	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	3057	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	3058	LEAVE_FF(fp->fs, (FRESULT)fp->err);
emilmont	1:46ce1e16c870	3059
emilmont	1:46ce1e16c870	3060	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	3061	if (fp->cltbl) { /* Fast seek */
mbed_official	5:b3b3370574cf	3062	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
mbed_official	5:b3b3370574cf	3063	tbl = fp->cltbl;
mbed_official	5:b3b3370574cf	3064	tlen = tbl++; ulen = 2; / Given table size and required table size */
mbed_official	5:b3b3370574cf	3065	cl = fp->sclust; /* Top of the chain */
mbed_official	5:b3b3370574cf	3066	if (cl) {
mbed_official	5:b3b3370574cf	3067	do {
mbed_official	5:b3b3370574cf	3068	/* Get a fragment */
mbed_official	5:b3b3370574cf	3069	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
mbed_official	5:b3b3370574cf	3070	do {
mbed_official	5:b3b3370574cf	3071	pcl = cl; ncl++;
mbed_official	5:b3b3370574cf	3072	cl = get_fat(fp->fs, cl);
mbed_official	5:b3b3370574cf	3073	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3074	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3075	} while (cl == pcl + 1);
mbed_official	5:b3b3370574cf	3076	if (ulen <= tlen) { /* Store the length and top of the fragment */
mbed_official	5:b3b3370574cf	3077	tbl++ = ncl; tbl++ = tcl;
mbed_official	5:b3b3370574cf	3078	}
mbed_official	5:b3b3370574cf	3079	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
mbed_official	5:b3b3370574cf	3080	}
mbed_official	5:b3b3370574cf	3081	fp->cltbl = ulen; / Number of items used */
mbed_official	5:b3b3370574cf	3082	if (ulen <= tlen)
mbed_official	5:b3b3370574cf	3083	tbl = 0; / Terminate table */
mbed_official	5:b3b3370574cf	3084	else
mbed_official	5:b3b3370574cf	3085	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
mbed_official	5:b3b3370574cf	3086
mbed_official	5:b3b3370574cf	3087	} else { /* Fast seek */
mbed_official	5:b3b3370574cf	3088	if (ofs > fp->fsize) /* Clip offset at the file size */
mbed_official	5:b3b3370574cf	3089	ofs = fp->fsize;
mbed_official	5:b3b3370574cf	3090	fp->fptr = ofs; /* Set file pointer */
mbed_official	5:b3b3370574cf	3091	if (ofs) {
mbed_official	5:b3b3370574cf	3092	fp->clust = clmt_clust(fp, ofs - 1);
mbed_official	5:b3b3370574cf	3093	dsc = clust2sect(fp->fs, fp->clust);
mbed_official	5:b3b3370574cf	3094	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3095	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
mbed_official	5:b3b3370574cf	3096	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
emilmont	1:46ce1e16c870	3097	#if !_FS_TINY
emilmont	1:46ce1e16c870	3098	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3099	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mbed_official	5:b3b3370574cf	3100	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	3101	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3102	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	3103	}
emilmont	1:46ce1e16c870	3104	#endif
mbed_official	5:b3b3370574cf	3105	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
mbed_official	5:b3b3370574cf	3106	ABORT(fp->fs, FR_DISK_ERR);
emilmont	1:46ce1e16c870	3107	#endif
mbed_official	5:b3b3370574cf	3108	fp->dsect = dsc;
mbed_official	5:b3b3370574cf	3109	}
mbed_official	5:b3b3370574cf	3110	}
mbed_official	5:b3b3370574cf	3111	}
mbed_official	5:b3b3370574cf	3112	} else
emilmont	1:46ce1e16c870	3113	#endif
emilmont	1:46ce1e16c870	3114
mbed_official	5:b3b3370574cf	3115	/* Normal Seek */
mbed_official	5:b3b3370574cf	3116	{
mbed_official	5:b3b3370574cf	3117	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
emilmont	1:46ce1e16c870	3118	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3119	&& !(fp->flag & FA_WRITE)
emilmont	1:46ce1e16c870	3120	#endif
mbed_official	5:b3b3370574cf	3121	) ofs = fp->fsize;
mbed_official	5:b3b3370574cf	3122
mbed_official	5:b3b3370574cf	3123	ifptr = fp->fptr;
mbed_official	5:b3b3370574cf	3124	fp->fptr = nsect = 0;
mbed_official	5:b3b3370574cf	3125	if (ofs) {
mbed_official	5:b3b3370574cf	3126	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
mbed_official	5:b3b3370574cf	3127	if (ifptr > 0 &&
mbed_official	5:b3b3370574cf	3128	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
mbed_official	5:b3b3370574cf	3129	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
mbed_official	5:b3b3370574cf	3130	ofs -= fp->fptr;
mbed_official	5:b3b3370574cf	3131	clst = fp->clust;
mbed_official	5:b3b3370574cf	3132	} else { /* When seek to back cluster, */
mbed_official	5:b3b3370574cf	3133	clst = fp->sclust; /* start from the first cluster */
emilmont	1:46ce1e16c870	3134	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3135	if (clst == 0) { /* If no cluster chain, create a new chain */
mbed_official	5:b3b3370574cf	3136	clst = create_chain(fp->fs, 0);
mbed_official	5:b3b3370574cf	3137	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3138	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3139	fp->sclust = clst;
mbed_official	5:b3b3370574cf	3140	}
emilmont	1:46ce1e16c870	3141	#endif
mbed_official	5:b3b3370574cf	3142	fp->clust = clst;
mbed_official	5:b3b3370574cf	3143	}
mbed_official	5:b3b3370574cf	3144	if (clst != 0) {
mbed_official	5:b3b3370574cf	3145	while (ofs > bcs) { /* Cluster following loop */
emilmont	1:46ce1e16c870	3146	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3147	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
mbed_official	5:b3b3370574cf	3148	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
mbed_official	5:b3b3370574cf	3149	if (clst == 0) { /* When disk gets full, clip file size */
mbed_official	5:b3b3370574cf	3150	ofs = bcs; break;
mbed_official	5:b3b3370574cf	3151	}
mbed_official	5:b3b3370574cf	3152	} else
emilmont	1:46ce1e16c870	3153	#endif
mbed_official	5:b3b3370574cf	3154	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
mbed_official	5:b3b3370574cf	3155	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3156	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3157	fp->clust = clst;
mbed_official	5:b3b3370574cf	3158	fp->fptr += bcs;
mbed_official	5:b3b3370574cf	3159	ofs -= bcs;
mbed_official	5:b3b3370574cf	3160	}
mbed_official	5:b3b3370574cf	3161	fp->fptr += ofs;
mbed_official	5:b3b3370574cf	3162	if (ofs % SS(fp->fs)) {
mbed_official	5:b3b3370574cf	3163	nsect = clust2sect(fp->fs, clst); /* Current sector */
mbed_official	5:b3b3370574cf	3164	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3165	nsect += ofs / SS(fp->fs);
mbed_official	5:b3b3370574cf	3166	}
mbed_official	5:b3b3370574cf	3167	}
mbed_official	5:b3b3370574cf	3168	}
mbed_official	5:b3b3370574cf	3169	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
emilmont	1:46ce1e16c870	3170	#if !_FS_TINY
emilmont	1:46ce1e16c870	3171	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3172	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mbed_official	5:b3b3370574cf	3173	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	3174	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3175	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	3176	}
emilmont	1:46ce1e16c870	3177	#endif
mbed_official	5:b3b3370574cf	3178	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
mbed_official	5:b3b3370574cf	3179	ABORT(fp->fs, FR_DISK_ERR);
emilmont	1:46ce1e16c870	3180	#endif
mbed_official	5:b3b3370574cf	3181	fp->dsect = nsect;
mbed_official	5:b3b3370574cf	3182	}
emilmont	1:46ce1e16c870	3183	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3184	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
mbed_official	5:b3b3370574cf	3185	fp->fsize = fp->fptr;
mbed_official	5:b3b3370574cf	3186	fp->flag \|= FA__WRITTEN;
mbed_official	5:b3b3370574cf	3187	}
emilmont	1:46ce1e16c870	3188	#endif
mbed_official	5:b3b3370574cf	3189	}
mbed_official	5:b3b3370574cf	3190
mbed_official	5:b3b3370574cf	3191	LEAVE_FF(fp->fs, res);
emilmont	1:46ce1e16c870	3192	}
emilmont	1:46ce1e16c870	3193
emilmont	1:46ce1e16c870	3194
emilmont	1:46ce1e16c870	3195
emilmont	1:46ce1e16c870	3196	#if _FS_MINIMIZE <= 1
emilmont	1:46ce1e16c870	3197	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3198	/* Create a Directory Object */
emilmont	1:46ce1e16c870	3199	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3200
emilmont	1:46ce1e16c870	3201	FRESULT f_opendir (
mbed_official	5:b3b3370574cf	3202	FATFS_DIR* dp, /* Pointer to directory object to create */
mbed_official	5:b3b3370574cf	3203	const TCHAR* path /* Pointer to the directory path */
emilmont	1:46ce1e16c870	3204	)
emilmont	1:46ce1e16c870	3205	{
mbed_official	5:b3b3370574cf	3206	FRESULT res;
mbed_official	5:b3b3370574cf	3207	FATFS* fs;
mbed_official	5:b3b3370574cf	3208	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3209
mbed_official	5:b3b3370574cf	3210
mbed_official	5:b3b3370574cf	3211	if (!dp) return FR_INVALID_OBJECT;
mbed_official	5:b3b3370574cf	3212
mbed_official	5:b3b3370574cf	3213	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3214	res = find_volume(&fs, &path, 0);
mbed_official	5:b3b3370574cf	3215	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3216	dp->fs = fs;
mbed_official	5:b3b3370574cf	3217	INIT_BUF(*dp);
mbed_official	5:b3b3370574cf	3218	res = follow_path(dp, path); /* Follow the path to the directory */
mbed_official	5:b3b3370574cf	3219	FREE_BUF();
mbed_official	5:b3b3370574cf	3220	if (res == FR_OK) { /* Follow completed */
mbed_official	6:a5fcdbf92056	3221	if (dp->dir) { /* It is not the origin directory itself */
mbed_official	6:a5fcdbf92056	3222	if (dp->dir[DIR_Attr] & AM_DIR) /* The object is a sub directory */
mbed_official	6:a5fcdbf92056	3223	dp->sclust = ld_clust(fs, dp->dir);
mbed_official	5:b3b3370574cf	3224	else /* The object is a file */
mbed_official	5:b3b3370574cf	3225	res = FR_NO_PATH;
mbed_official	5:b3b3370574cf	3226	}
mbed_official	5:b3b3370574cf	3227	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3228	dp->id = fs->id;
mbed_official	5:b3b3370574cf	3229	res = dir_sdi(dp, 0); /* Rewind directory */
mbed_official	5:b3b3370574cf	3230	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3231	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3232	if (dp->sclust) {
mbed_official	5:b3b3370574cf	3233	dp->lockid = inc_lock(dp, 0); /* Lock the sub directory */
mbed_official	5:b3b3370574cf	3234	if (!dp->lockid)
mbed_official	5:b3b3370574cf	3235	res = FR_TOO_MANY_OPEN_FILES;
mbed_official	5:b3b3370574cf	3236	} else {
mbed_official	5:b3b3370574cf	3237	dp->lockid = 0; /* Root directory need not to be locked */
mbed_official	5:b3b3370574cf	3238	}
mbed_official	5:b3b3370574cf	3239	}
mbed_official	5:b3b3370574cf	3240	#endif
mbed_official	5:b3b3370574cf	3241	}
mbed_official	5:b3b3370574cf	3242	}
mbed_official	5:b3b3370574cf	3243	if (res == FR_NO_FILE) res = FR_NO_PATH;
mbed_official	5:b3b3370574cf	3244	}
mbed_official	5:b3b3370574cf	3245	if (res != FR_OK) dp->fs = 0; /* Invalidate the directory object if function faild */
mbed_official	5:b3b3370574cf	3246
mbed_official	5:b3b3370574cf	3247	LEAVE_FF(fs, res);
mbed_official	5:b3b3370574cf	3248	}
mbed_official	5:b3b3370574cf	3249
mbed_official	5:b3b3370574cf	3250
mbed_official	5:b3b3370574cf	3251
mbed_official	5:b3b3370574cf	3252
mbed_official	5:b3b3370574cf	3253	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3254	/* Close Directory */
mbed_official	5:b3b3370574cf	3255	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3256
mbed_official	5:b3b3370574cf	3257	FRESULT f_closedir (
mbed_official	5:b3b3370574cf	3258	FATFS_DIR dp / Pointer to the directory object to be closed */
mbed_official	5:b3b3370574cf	3259	)
mbed_official	5:b3b3370574cf	3260	{
mbed_official	5:b3b3370574cf	3261	FRESULT res;
mbed_official	5:b3b3370574cf	3262
mbed_official	5:b3b3370574cf	3263
mbed_official	5:b3b3370574cf	3264	res = validate(dp);
mbed_official	5:b3b3370574cf	3265	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3266	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	3267	FATFS *fs = dp->fs;
mbed_official	5:b3b3370574cf	3268	#endif
mbed_official	5:b3b3370574cf	3269	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3270	if (dp->lockid) /* Decrement sub-directory open counter */
mbed_official	5:b3b3370574cf	3271	res = dec_lock(dp->lockid);
mbed_official	5:b3b3370574cf	3272	if (res == FR_OK)
mbed_official	5:b3b3370574cf	3273	#endif
mbed_official	5:b3b3370574cf	3274	dp->fs = 0; /* Invalidate directory object */
mbed_official	5:b3b3370574cf	3275	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	3276	unlock_fs(fs, FR_OK); /* Unlock volume */
mbed_official	5:b3b3370574cf	3277	#endif
mbed_official	5:b3b3370574cf	3278	}
mbed_official	5:b3b3370574cf	3279	return res;
emilmont	1:46ce1e16c870	3280	}
emilmont	1:46ce1e16c870	3281
emilmont	1:46ce1e16c870	3282
emilmont	1:46ce1e16c870	3283
emilmont	1:46ce1e16c870	3284
emilmont	1:46ce1e16c870	3285	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3286	/* Read Directory Entries in Sequence */
emilmont	1:46ce1e16c870	3287	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3288
emilmont	1:46ce1e16c870	3289	FRESULT f_readdir (
mbed_official	5:b3b3370574cf	3290	FATFS_DIR* dp, /* Pointer to the open directory object */
mbed_official	5:b3b3370574cf	3291	FILINFO* fno /* Pointer to file information to return */
emilmont	1:46ce1e16c870	3292	)
emilmont	1:46ce1e16c870	3293	{
mbed_official	5:b3b3370574cf	3294	FRESULT res;
mbed_official	5:b3b3370574cf	3295	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3296
mbed_official	5:b3b3370574cf	3297
mbed_official	5:b3b3370574cf	3298	res = validate(dp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	3299	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3300	if (!fno) {
mbed_official	5:b3b3370574cf	3301	res = dir_sdi(dp, 0); /* Rewind the directory object */
mbed_official	5:b3b3370574cf	3302	} else {
mbed_official	5:b3b3370574cf	3303	INIT_BUF(*dp);
mbed_official	5:b3b3370574cf	3304	res = dir_read(dp, 0); /* Read an item */
mbed_official	5:b3b3370574cf	3305	if (res == FR_NO_FILE) { /* Reached end of directory */
mbed_official	5:b3b3370574cf	3306	dp->sect = 0;
mbed_official	5:b3b3370574cf	3307	res = FR_OK;
mbed_official	5:b3b3370574cf	3308	}
mbed_official	5:b3b3370574cf	3309	if (res == FR_OK) { /* A valid entry is found */
mbed_official	5:b3b3370574cf	3310	get_fileinfo(dp, fno); /* Get the object information */
mbed_official	5:b3b3370574cf	3311	res = dir_next(dp, 0); /* Increment index for next */
mbed_official	5:b3b3370574cf	3312	if (res == FR_NO_FILE) {
mbed_official	5:b3b3370574cf	3313	dp->sect = 0;
mbed_official	5:b3b3370574cf	3314	res = FR_OK;
mbed_official	5:b3b3370574cf	3315	}
mbed_official	5:b3b3370574cf	3316	}
mbed_official	5:b3b3370574cf	3317	FREE_BUF();
mbed_official	5:b3b3370574cf	3318	}
mbed_official	5:b3b3370574cf	3319	}
mbed_official	5:b3b3370574cf	3320
mbed_official	5:b3b3370574cf	3321	LEAVE_FF(dp->fs, res);
emilmont	1:46ce1e16c870	3322	}
emilmont	1:46ce1e16c870	3323
emilmont	1:46ce1e16c870	3324
emilmont	1:46ce1e16c870	3325
mbed_official	5:b3b3370574cf	3326	#if _USE_FIND
mbed_official	5:b3b3370574cf	3327	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3328	/* Find next file */
mbed_official	5:b3b3370574cf	3329	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3330
mbed_official	5:b3b3370574cf	3331	FRESULT f_findnext (
mbed_official	5:b3b3370574cf	3332	FATFS_DIR* dp, /* Pointer to the open directory object */
mbed_official	5:b3b3370574cf	3333	FILINFO* fno /* Pointer to the file information structure */
mbed_official	5:b3b3370574cf	3334	)
mbed_official	5:b3b3370574cf	3335	{
mbed_official	5:b3b3370574cf	3336	FRESULT res;
mbed_official	5:b3b3370574cf	3337
mbed_official	5:b3b3370574cf	3338
mbed_official	5:b3b3370574cf	3339	for (;;) {
mbed_official	5:b3b3370574cf	3340	res = f_readdir(dp, fno); /* Get a directory item */
mbed_official	5:b3b3370574cf	3341	if (res != FR_OK \|\| !fno \|\| !fno->fname[0]) break; /* Terminate if any error or end of directory */
mbed_official	5:b3b3370574cf	3342	#if _USE_LFN
mbed_official	5:b3b3370574cf	3343	if (fno->lfname && pattern_matching(dp->pat, fno->lfname, 0, 0)) break; /* Test for LFN if exist */
mbed_official	5:b3b3370574cf	3344	#endif
mbed_official	5:b3b3370574cf	3345	if (pattern_matching(dp->pat, fno->fname, 0, 0)) break; /* Test for SFN */
mbed_official	5:b3b3370574cf	3346	}
mbed_official	5:b3b3370574cf	3347	return res;
mbed_official	5:b3b3370574cf	3348
mbed_official	5:b3b3370574cf	3349	}
mbed_official	5:b3b3370574cf	3350
mbed_official	5:b3b3370574cf	3351
mbed_official	5:b3b3370574cf	3352
mbed_official	5:b3b3370574cf	3353	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3354	/* Find first file */
mbed_official	5:b3b3370574cf	3355	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3356
mbed_official	5:b3b3370574cf	3357	FRESULT f_findfirst (
mbed_official	5:b3b3370574cf	3358	FATFS_DIR* dp, /* Pointer to the blank directory object */
mbed_official	5:b3b3370574cf	3359	FILINFO* fno, /* Pointer to the file information structure */
mbed_official	5:b3b3370574cf	3360	const TCHAR* path, /* Pointer to the directory to open */
mbed_official	5:b3b3370574cf	3361	const TCHAR* pattern /* Pointer to the matching pattern */
mbed_official	5:b3b3370574cf	3362	)
mbed_official	5:b3b3370574cf	3363	{
mbed_official	5:b3b3370574cf	3364	FRESULT res;
mbed_official	5:b3b3370574cf	3365
mbed_official	5:b3b3370574cf	3366
mbed_official	5:b3b3370574cf	3367	dp->pat = pattern; /* Save pointer to pattern string */
mbed_official	5:b3b3370574cf	3368	res = f_opendir(dp, path); /* Open the target directory */
mbed_official	5:b3b3370574cf	3369	if (res == FR_OK)
mbed_official	5:b3b3370574cf	3370	res = f_findnext(dp, fno); /* Find the first item */
mbed_official	5:b3b3370574cf	3371	return res;
mbed_official	5:b3b3370574cf	3372	}
mbed_official	5:b3b3370574cf	3373
mbed_official	5:b3b3370574cf	3374	#endif /* _USE_FIND */
mbed_official	5:b3b3370574cf	3375
mbed_official	5:b3b3370574cf	3376
mbed_official	5:b3b3370574cf	3377
emilmont	1:46ce1e16c870	3378	#if _FS_MINIMIZE == 0
emilmont	1:46ce1e16c870	3379	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3380	/* Get File Status */
emilmont	1:46ce1e16c870	3381	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3382
emilmont	1:46ce1e16c870	3383	FRESULT f_stat (
mbed_official	5:b3b3370574cf	3384	const TCHAR* path, /* Pointer to the file path */
mbed_official	5:b3b3370574cf	3385	FILINFO* fno /* Pointer to file information to return */
emilmont	1:46ce1e16c870	3386	)
emilmont	1:46ce1e16c870	3387	{
mbed_official	5:b3b3370574cf	3388	FRESULT res;
mbed_official	5:b3b3370574cf	3389	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3390	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3391
mbed_official	5:b3b3370574cf	3392
mbed_official	5:b3b3370574cf	3393	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3394	res = find_volume(&dj.fs, &path, 0);
mbed_official	5:b3b3370574cf	3395	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3396	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3397	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3398	if (res == FR_OK) { /* Follow completed */
mbed_official	6:a5fcdbf92056	3399	if (dj.dir) { /* Found an object */
mbed_official	5:b3b3370574cf	3400	if (fno) get_fileinfo(&dj, fno);
mbed_official	5:b3b3370574cf	3401	} else { /* It is root directory */
mbed_official	5:b3b3370574cf	3402	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3403	}
mbed_official	5:b3b3370574cf	3404	}
mbed_official	5:b3b3370574cf	3405	FREE_BUF();
mbed_official	5:b3b3370574cf	3406	}
mbed_official	5:b3b3370574cf	3407
mbed_official	5:b3b3370574cf	3408	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3409	}
emilmont	1:46ce1e16c870	3410
emilmont	1:46ce1e16c870	3411
emilmont	1:46ce1e16c870	3412
emilmont	1:46ce1e16c870	3413	#if !_FS_READONLY
emilmont	1:46ce1e16c870	3414	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3415	/* Get Number of Free Clusters */
emilmont	1:46ce1e16c870	3416	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3417
emilmont	1:46ce1e16c870	3418	FRESULT f_getfree (
mbed_official	5:b3b3370574cf	3419	const TCHAR* path, /* Path name of the logical drive number */
mbed_official	5:b3b3370574cf	3420	DWORD* nclst, /* Pointer to a variable to return number of free clusters */
mbed_official	5:b3b3370574cf	3421	FATFS** fatfs /* Pointer to return pointer to corresponding file system object */
emilmont	1:46ce1e16c870	3422	)
emilmont	1:46ce1e16c870	3423	{
mbed_official	5:b3b3370574cf	3424	FRESULT res;
mbed_official	5:b3b3370574cf	3425	FATFS *fs;
mbed_official	6:a5fcdbf92056	3426	DWORD nfree, clst, sect, stat;
mbed_official	5:b3b3370574cf	3427	UINT i;
mbed_official	5:b3b3370574cf	3428	BYTE fat, *p;
mbed_official	5:b3b3370574cf	3429
mbed_official	5:b3b3370574cf	3430
mbed_official	5:b3b3370574cf	3431	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3432	res = find_volume(fatfs, &path, 0);
mbed_official	5:b3b3370574cf	3433	fs = *fatfs;
mbed_official	5:b3b3370574cf	3434	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3435	/* If free_clust is valid, return it without full cluster scan */
mbed_official	5:b3b3370574cf	3436	if (fs->free_clust <= fs->n_fatent - 2) {
mbed_official	5:b3b3370574cf	3437	*nclst = fs->free_clust;
mbed_official	5:b3b3370574cf	3438	} else {
mbed_official	5:b3b3370574cf	3439	/* Get number of free clusters */
mbed_official	5:b3b3370574cf	3440	fat = fs->fs_type;
mbed_official	6:a5fcdbf92056	3441	nfree = 0;
mbed_official	6:a5fcdbf92056	3442	if (fat == FS_FAT12) { /* Sector unalighed entries: Search FAT via regular routine. */
mbed_official	5:b3b3370574cf	3443	clst = 2;
mbed_official	5:b3b3370574cf	3444	do {
mbed_official	5:b3b3370574cf	3445	stat = get_fat(fs, clst);
mbed_official	5:b3b3370574cf	3446	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
mbed_official	5:b3b3370574cf	3447	if (stat == 1) { res = FR_INT_ERR; break; }
mbed_official	6:a5fcdbf92056	3448	if (stat == 0) nfree++;
mbed_official	5:b3b3370574cf	3449	} while (++clst < fs->n_fatent);
mbed_official	6:a5fcdbf92056	3450	} else { /* Sector alighed entries: Accelerate the FAT search. */
mbed_official	6:a5fcdbf92056	3451	clst = fs->n_fatent; sect = fs->fatbase;
mbed_official	5:b3b3370574cf	3452	i = 0; p = 0;
mbed_official	5:b3b3370574cf	3453	do {
mbed_official	5:b3b3370574cf	3454	if (!i) {
mbed_official	5:b3b3370574cf	3455	res = move_window(fs, sect++);
mbed_official	5:b3b3370574cf	3456	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	3457	p = fs->win;
mbed_official	5:b3b3370574cf	3458	i = SS(fs);
mbed_official	5:b3b3370574cf	3459	}
mbed_official	5:b3b3370574cf	3460	if (fat == FS_FAT16) {
mbed_official	6:a5fcdbf92056	3461	if (LD_WORD(p) == 0) nfree++;
mbed_official	5:b3b3370574cf	3462	p += 2; i -= 2;
mbed_official	5:b3b3370574cf	3463	} else {
mbed_official	6:a5fcdbf92056	3464	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) nfree++;
mbed_official	5:b3b3370574cf	3465	p += 4; i -= 4;
mbed_official	5:b3b3370574cf	3466	}
mbed_official	5:b3b3370574cf	3467	} while (--clst);
mbed_official	5:b3b3370574cf	3468	}
mbed_official	6:a5fcdbf92056	3469	fs->free_clust = nfree; /* free_clust is valid */
mbed_official	6:a5fcdbf92056	3470	fs->fsi_flag \|= 1; /* FSInfo is to be updated */
mbed_official	6:a5fcdbf92056	3471	nclst = nfree; / Return the free clusters */
mbed_official	5:b3b3370574cf	3472	}
mbed_official	5:b3b3370574cf	3473	}
mbed_official	5:b3b3370574cf	3474	LEAVE_FF(fs, res);
emilmont	1:46ce1e16c870	3475	}
emilmont	1:46ce1e16c870	3476
emilmont	1:46ce1e16c870	3477
emilmont	1:46ce1e16c870	3478
emilmont	1:46ce1e16c870	3479
emilmont	1:46ce1e16c870	3480	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3481	/* Truncate File */
emilmont	1:46ce1e16c870	3482	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3483
emilmont	1:46ce1e16c870	3484	FRESULT f_truncate (
mbed_official	5:b3b3370574cf	3485	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	3486	)
emilmont	1:46ce1e16c870	3487	{
mbed_official	5:b3b3370574cf	3488	FRESULT res;
mbed_official	5:b3b3370574cf	3489	DWORD ncl;
mbed_official	5:b3b3370574cf	3490
mbed_official	5:b3b3370574cf	3491
mbed_official	5:b3b3370574cf	3492	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	3493	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3494	if (fp->err) { /* Check error */
mbed_official	5:b3b3370574cf	3495	res = (FRESULT)fp->err;
mbed_official	5:b3b3370574cf	3496	} else {
mbed_official	5:b3b3370574cf	3497	if (!(fp->flag & FA_WRITE)) /* Check access mode */
mbed_official	5:b3b3370574cf	3498	res = FR_DENIED;
mbed_official	5:b3b3370574cf	3499	}
mbed_official	5:b3b3370574cf	3500	}
mbed_official	5:b3b3370574cf	3501	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3502	if (fp->fsize > fp->fptr) {
mbed_official	5:b3b3370574cf	3503	fp->fsize = fp->fptr; /* Set file size to current R/W point */
mbed_official	5:b3b3370574cf	3504	fp->flag \|= FA__WRITTEN;
mbed_official	5:b3b3370574cf	3505	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
mbed_official	5:b3b3370574cf	3506	res = remove_chain(fp->fs, fp->sclust);
mbed_official	5:b3b3370574cf	3507	fp->sclust = 0;
mbed_official	5:b3b3370574cf	3508	} else { /* When truncate a part of the file, remove remaining clusters */
mbed_official	5:b3b3370574cf	3509	ncl = get_fat(fp->fs, fp->clust);
mbed_official	5:b3b3370574cf	3510	res = FR_OK;
mbed_official	5:b3b3370574cf	3511	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	3512	if (ncl == 1) res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	3513	if (res == FR_OK && ncl < fp->fs->n_fatent) {
mbed_official	5:b3b3370574cf	3514	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
mbed_official	5:b3b3370574cf	3515	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
mbed_official	5:b3b3370574cf	3516	}
mbed_official	5:b3b3370574cf	3517	}
mbed_official	5:b3b3370574cf	3518	#if !_FS_TINY
mbed_official	5:b3b3370574cf	3519	if (res == FR_OK && (fp->flag & FA__DIRTY)) {
mbed_official	5:b3b3370574cf	3520	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	3521	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	3522	else
mbed_official	5:b3b3370574cf	3523	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	3524	}
mbed_official	5:b3b3370574cf	3525	#endif
mbed_official	5:b3b3370574cf	3526	}
mbed_official	5:b3b3370574cf	3527	if (res != FR_OK) fp->err = (FRESULT)res;
mbed_official	5:b3b3370574cf	3528	}
mbed_official	5:b3b3370574cf	3529
mbed_official	5:b3b3370574cf	3530	LEAVE_FF(fp->fs, res);
emilmont	1:46ce1e16c870	3531	}
emilmont	1:46ce1e16c870	3532
emilmont	1:46ce1e16c870	3533
emilmont	1:46ce1e16c870	3534
emilmont	1:46ce1e16c870	3535
emilmont	1:46ce1e16c870	3536	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3537	/* Delete a File or Directory */
emilmont	1:46ce1e16c870	3538	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3539
emilmont	1:46ce1e16c870	3540	FRESULT f_unlink (
mbed_official	5:b3b3370574cf	3541	const TCHAR* path /* Pointer to the file or directory path */
emilmont	1:46ce1e16c870	3542	)
emilmont	1:46ce1e16c870	3543	{
mbed_official	5:b3b3370574cf	3544	FRESULT res;
mbed_official	5:b3b3370574cf	3545	FATFS_DIR dj, sdj;
mbed_official	6:a5fcdbf92056	3546	BYTE *dir;
mbed_official	5:b3b3370574cf	3547	DWORD dclst = 0;
mbed_official	5:b3b3370574cf	3548	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3549
mbed_official	5:b3b3370574cf	3550
mbed_official	5:b3b3370574cf	3551	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3552	res = find_volume(&dj.fs, &path, 1);
mbed_official	5:b3b3370574cf	3553	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3554	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3555	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3556	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3557	res = FR_INVALID_NAME; /* Cannot remove dot entry */
emilmont	1:46ce1e16c870	3558	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3559	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open object */
emilmont	1:46ce1e16c870	3560	#endif
mbed_official	5:b3b3370574cf	3561	if (res == FR_OK) { /* The object is accessible */
mbed_official	6:a5fcdbf92056	3562	dir = dj.dir;
mbed_official	6:a5fcdbf92056	3563	if (!dir) {
mbed_official	5:b3b3370574cf	3564	res = FR_INVALID_NAME; /* Cannot remove the origin directory */
mbed_official	5:b3b3370574cf	3565	} else {
mbed_official	6:a5fcdbf92056	3566	if (dir[DIR_Attr] & AM_RDO)
mbed_official	5:b3b3370574cf	3567	res = FR_DENIED; /* Cannot remove R/O object */
mbed_official	5:b3b3370574cf	3568	}
mbed_official	5:b3b3370574cf	3569	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	3570	dclst = ld_clust(dj.fs, dir);
mbed_official	6:a5fcdbf92056	3571	if (dclst && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-directory ? */
emilmont	1:46ce1e16c870	3572	#if _FS_RPATH
mbed_official	5:b3b3370574cf	3573	if (dclst == dj.fs->cdir) { /* Is it the current directory? */
mbed_official	5:b3b3370574cf	3574	res = FR_DENIED;
mbed_official	5:b3b3370574cf	3575	} else
emilmont	1:46ce1e16c870	3576	#endif
mbed_official	5:b3b3370574cf	3577	{
mbed_official	5:b3b3370574cf	3578	mem_cpy(&sdj, &dj, sizeof (FATFS_DIR)); /* Open the sub-directory */
mbed_official	5:b3b3370574cf	3579	sdj.sclust = dclst;
mbed_official	5:b3b3370574cf	3580	res = dir_sdi(&sdj, 2);
mbed_official	5:b3b3370574cf	3581	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3582	res = dir_read(&sdj, 0); /* Read an item (excluding dot entries) */
mbed_official	5:b3b3370574cf	3583	if (res == FR_OK) res = FR_DENIED; /* Not empty? (cannot remove) */
mbed_official	5:b3b3370574cf	3584	if (res == FR_NO_FILE) res = FR_OK; /* Empty? (can remove) */
mbed_official	5:b3b3370574cf	3585	}
mbed_official	5:b3b3370574cf	3586	}
mbed_official	5:b3b3370574cf	3587	}
mbed_official	5:b3b3370574cf	3588	}
mbed_official	5:b3b3370574cf	3589	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3590	res = dir_remove(&dj); /* Remove the directory entry */
mbed_official	5:b3b3370574cf	3591	if (res == FR_OK && dclst) /* Remove the cluster chain if exist */
mbed_official	5:b3b3370574cf	3592	res = remove_chain(dj.fs, dclst);
mbed_official	5:b3b3370574cf	3593	if (res == FR_OK) res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3594	}
mbed_official	5:b3b3370574cf	3595	}
mbed_official	5:b3b3370574cf	3596	FREE_BUF();
mbed_official	5:b3b3370574cf	3597	}
mbed_official	5:b3b3370574cf	3598
mbed_official	5:b3b3370574cf	3599	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3600	}
emilmont	1:46ce1e16c870	3601
emilmont	1:46ce1e16c870	3602
emilmont	1:46ce1e16c870	3603
emilmont	1:46ce1e16c870	3604
emilmont	1:46ce1e16c870	3605	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3606	/* Create a Directory */
emilmont	1:46ce1e16c870	3607	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3608
emilmont	1:46ce1e16c870	3609	FRESULT f_mkdir (
mbed_official	5:b3b3370574cf	3610	const TCHAR* path /* Pointer to the directory path */
emilmont	1:46ce1e16c870	3611	)
emilmont	1:46ce1e16c870	3612	{
mbed_official	5:b3b3370574cf	3613	FRESULT res;
mbed_official	5:b3b3370574cf	3614	FATFS_DIR dj;
mbed_official	6:a5fcdbf92056	3615	BYTE *dir, n;
mbed_official	5:b3b3370574cf	3616	DWORD dsc, dcl, pcl, tm = GET_FATTIME();
mbed_official	5:b3b3370574cf	3617	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3618
mbed_official	5:b3b3370574cf	3619
mbed_official	5:b3b3370574cf	3620	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3621	res = find_volume(&dj.fs, &path, 1);
mbed_official	5:b3b3370574cf	3622	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3623	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3624	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3625	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
mbed_official	5:b3b3370574cf	3626	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3627	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3628	if (res == FR_NO_FILE) { /* Can create a new directory */
mbed_official	5:b3b3370574cf	3629	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
mbed_official	5:b3b3370574cf	3630	res = FR_OK;
mbed_official	5:b3b3370574cf	3631	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
mbed_official	5:b3b3370574cf	3632	if (dcl == 1) res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	3633	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	3634	if (res == FR_OK) /* Flush FAT */
mbed_official	5:b3b3370574cf	3635	res = sync_window(dj.fs);
mbed_official	5:b3b3370574cf	3636	if (res == FR_OK) { /* Initialize the new directory table */
mbed_official	5:b3b3370574cf	3637	dsc = clust2sect(dj.fs, dcl);
mbed_official	6:a5fcdbf92056	3638	dir = dj.fs->win;
mbed_official	6:a5fcdbf92056	3639	mem_set(dir, 0, SS(dj.fs));
mbed_official	6:a5fcdbf92056	3640	mem_set(dir + DIR_Name, ' ', 11); /* Create "." entry */
mbed_official	6:a5fcdbf92056	3641	dir[DIR_Name] = '.';
mbed_official	6:a5fcdbf92056	3642	dir[DIR_Attr] = AM_DIR;
mbed_official	6:a5fcdbf92056	3643	ST_DWORD(dir + DIR_WrtTime, tm);
mbed_official	6:a5fcdbf92056	3644	st_clust(dir, dcl);
mbed_official	6:a5fcdbf92056	3645	mem_cpy(dir + SZ_DIRE, dir, SZ_DIRE); /* Create ".." entry */
mbed_official	6:a5fcdbf92056	3646	dir[SZ_DIRE + 1] = '.'; pcl = dj.sclust;
mbed_official	5:b3b3370574cf	3647	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
mbed_official	5:b3b3370574cf	3648	pcl = 0;
mbed_official	6:a5fcdbf92056	3649	st_clust(dir + SZ_DIRE, pcl);
mbed_official	5:b3b3370574cf	3650	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
mbed_official	5:b3b3370574cf	3651	dj.fs->winsect = dsc++;
mbed_official	5:b3b3370574cf	3652	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3653	res = sync_window(dj.fs);
mbed_official	5:b3b3370574cf	3654	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	3655	mem_set(dir, 0, SS(dj.fs));
mbed_official	5:b3b3370574cf	3656	}
mbed_official	5:b3b3370574cf	3657	}
mbed_official	5:b3b3370574cf	3658	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
mbed_official	5:b3b3370574cf	3659	if (res != FR_OK) {
mbed_official	5:b3b3370574cf	3660	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
mbed_official	5:b3b3370574cf	3661	} else {
mbed_official	6:a5fcdbf92056	3662	dir = dj.dir;
mbed_official	6:a5fcdbf92056	3663	dir[DIR_Attr] = AM_DIR; /* Attribute */
mbed_official	6:a5fcdbf92056	3664	ST_DWORD(dir + DIR_WrtTime, tm); /* Created time */
mbed_official	6:a5fcdbf92056	3665	st_clust(dir, dcl); /* Table start cluster */
mbed_official	5:b3b3370574cf	3666	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3667	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3668	}
mbed_official	5:b3b3370574cf	3669	}
mbed_official	5:b3b3370574cf	3670	FREE_BUF();
mbed_official	5:b3b3370574cf	3671	}
mbed_official	5:b3b3370574cf	3672
mbed_official	5:b3b3370574cf	3673	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3674	}
emilmont	1:46ce1e16c870	3675
emilmont	1:46ce1e16c870	3676
emilmont	1:46ce1e16c870	3677
emilmont	1:46ce1e16c870	3678
emilmont	1:46ce1e16c870	3679	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3680	/* Change Attribute */
emilmont	1:46ce1e16c870	3681	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3682
emilmont	1:46ce1e16c870	3683	FRESULT f_chmod (
mbed_official	5:b3b3370574cf	3684	const TCHAR* path, /* Pointer to the file path */
mbed_official	5:b3b3370574cf	3685	BYTE attr, /* Attribute bits */
mbed_official	5:b3b3370574cf	3686	BYTE mask /* Attribute mask to change */
emilmont	1:46ce1e16c870	3687	)
emilmont	1:46ce1e16c870	3688	{
mbed_official	5:b3b3370574cf	3689	FRESULT res;
mbed_official	5:b3b3370574cf	3690	FATFS_DIR dj;
mbed_official	6:a5fcdbf92056	3691	BYTE *dir;
mbed_official	5:b3b3370574cf	3692	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3693
mbed_official	5:b3b3370574cf	3694
mbed_official	6:a5fcdbf92056	3695	res = find_volume(&dj.fs, &path, 1); /* Get logical drive number */
mbed_official	5:b3b3370574cf	3696	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3697	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3698	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3699	FREE_BUF();
mbed_official	5:b3b3370574cf	3700	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3701	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3702	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	3703	dir = dj.dir;
mbed_official	6:a5fcdbf92056	3704	if (!dir) { /* Is it a root directory? */
mbed_official	5:b3b3370574cf	3705	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3706	} else { /* File or sub directory */
mbed_official	5:b3b3370574cf	3707	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
mbed_official	6:a5fcdbf92056	3708	dir[DIR_Attr] = (attr & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
mbed_official	5:b3b3370574cf	3709	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3710	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3711	}
mbed_official	5:b3b3370574cf	3712	}
mbed_official	5:b3b3370574cf	3713	}
mbed_official	5:b3b3370574cf	3714
mbed_official	5:b3b3370574cf	3715	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3716	}
emilmont	1:46ce1e16c870	3717
emilmont	1:46ce1e16c870	3718
emilmont	1:46ce1e16c870	3719
emilmont	1:46ce1e16c870	3720
emilmont	1:46ce1e16c870	3721	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3722	/* Rename File/Directory */
emilmont	1:46ce1e16c870	3723	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3724
emilmont	1:46ce1e16c870	3725	FRESULT f_rename (
mbed_official	5:b3b3370574cf	3726	const TCHAR* path_old, /* Pointer to the object to be renamed */
mbed_official	5:b3b3370574cf	3727	const TCHAR* path_new /* Pointer to the new name */
emilmont	1:46ce1e16c870	3728	)
emilmont	1:46ce1e16c870	3729	{
mbed_official	5:b3b3370574cf	3730	FRESULT res;
mbed_official	5:b3b3370574cf	3731	FATFS_DIR djo, djn;
mbed_official	6:a5fcdbf92056	3732	BYTE buf[21], *dir;
mbed_official	5:b3b3370574cf	3733	DWORD dw;
mbed_official	5:b3b3370574cf	3734	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3735
mbed_official	5:b3b3370574cf	3736
mbed_official	5:b3b3370574cf	3737	/* Get logical drive number of the source object */
mbed_official	5:b3b3370574cf	3738	res = find_volume(&djo.fs, &path_old, 1);
mbed_official	5:b3b3370574cf	3739	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3740	djn.fs = djo.fs;
mbed_official	5:b3b3370574cf	3741	INIT_BUF(djo);
mbed_official	5:b3b3370574cf	3742	res = follow_path(&djo, path_old); /* Check old object */
mbed_official	5:b3b3370574cf	3743	if (_FS_RPATH && res == FR_OK && (djo.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3744	res = FR_INVALID_NAME;
emilmont	1:46ce1e16c870	3745	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3746	if (res == FR_OK) res = chk_lock(&djo, 2);
emilmont	1:46ce1e16c870	3747	#endif
mbed_official	5:b3b3370574cf	3748	if (res == FR_OK) { /* Old object is found */
mbed_official	6:a5fcdbf92056	3749	if (!djo.dir) { /* Is root dir? */
mbed_official	5:b3b3370574cf	3750	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	3751	} else {
mbed_official	6:a5fcdbf92056	3752	mem_cpy(buf, djo.dir + DIR_Attr, 21); /* Save information about object except name */
mbed_official	5:b3b3370574cf	3753	mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Duplicate the directory object */
mbed_official	5:b3b3370574cf	3754	if (get_ldnumber(&path_new) >= 0) /* Snip drive number off and ignore it */
mbed_official	5:b3b3370574cf	3755	res = follow_path(&djn, path_new); /* and make sure if new object name is not conflicting */
mbed_official	5:b3b3370574cf	3756	else
mbed_official	5:b3b3370574cf	3757	res = FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	3758	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
mbed_official	5:b3b3370574cf	3759	if (res == FR_NO_FILE) { /* It is a valid path and no name collision */
mbed_official	5:b3b3370574cf	3760	res = dir_register(&djn); /* Register the new entry */
mbed_official	5:b3b3370574cf	3761	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3762	/* Start of critical section where any interruption can cause a cross-link */
mbed_official	6:a5fcdbf92056	3763	dir = djn.dir; /* Copy information about object except name */
mbed_official	6:a5fcdbf92056	3764	mem_cpy(dir + 13, buf + 2, 19);
mbed_official	6:a5fcdbf92056	3765	dir[DIR_Attr] = buf[0] \| AM_ARC;
mbed_official	5:b3b3370574cf	3766	djo.fs->wflag = 1;
mbed_official	6:a5fcdbf92056	3767	if ((dir[DIR_Attr] & AM_DIR) && djo.sclust != djn.sclust) { /* Update .. entry in the sub-directory if needed */
mbed_official	6:a5fcdbf92056	3768	dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
mbed_official	5:b3b3370574cf	3769	if (!dw) {
mbed_official	5:b3b3370574cf	3770	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	3771	} else {
mbed_official	5:b3b3370574cf	3772	res = move_window(djo.fs, dw);
mbed_official	6:a5fcdbf92056	3773	dir = djo.fs->win + SZ_DIRE * 1; /* Ptr to .. entry */
mbed_official	6:a5fcdbf92056	3774	if (res == FR_OK && dir[1] == '.') {
mbed_official	6:a5fcdbf92056	3775	st_clust(dir, djn.sclust);
mbed_official	5:b3b3370574cf	3776	djo.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3777	}
mbed_official	5:b3b3370574cf	3778	}
mbed_official	5:b3b3370574cf	3779	}
mbed_official	5:b3b3370574cf	3780	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3781	res = dir_remove(&djo); /* Remove old entry */
mbed_official	5:b3b3370574cf	3782	if (res == FR_OK)
mbed_official	5:b3b3370574cf	3783	res = sync_fs(djo.fs);
mbed_official	5:b3b3370574cf	3784	}
mbed_official	5:b3b3370574cf	3785	/* End of critical section */
mbed_official	5:b3b3370574cf	3786	}
mbed_official	5:b3b3370574cf	3787	}
mbed_official	5:b3b3370574cf	3788	}
mbed_official	5:b3b3370574cf	3789	}
mbed_official	5:b3b3370574cf	3790	FREE_BUF();
mbed_official	5:b3b3370574cf	3791	}
mbed_official	5:b3b3370574cf	3792
mbed_official	5:b3b3370574cf	3793	LEAVE_FF(djo.fs, res);
mbed_official	5:b3b3370574cf	3794	}
mbed_official	5:b3b3370574cf	3795
mbed_official	5:b3b3370574cf	3796
mbed_official	5:b3b3370574cf	3797
mbed_official	5:b3b3370574cf	3798
mbed_official	5:b3b3370574cf	3799	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3800	/* Change Timestamp */
mbed_official	5:b3b3370574cf	3801	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3802
mbed_official	5:b3b3370574cf	3803	FRESULT f_utime (
mbed_official	5:b3b3370574cf	3804	const TCHAR* path, /* Pointer to the file/directory name */
mbed_official	5:b3b3370574cf	3805	const FILINFO* fno /* Pointer to the time stamp to be set */
mbed_official	5:b3b3370574cf	3806	)
mbed_official	5:b3b3370574cf	3807	{
mbed_official	5:b3b3370574cf	3808	FRESULT res;
mbed_official	5:b3b3370574cf	3809	FATFS_DIR dj;
mbed_official	6:a5fcdbf92056	3810	BYTE *dir;
mbed_official	5:b3b3370574cf	3811	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3812
mbed_official	5:b3b3370574cf	3813
mbed_official	5:b3b3370574cf	3814	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3815	res = find_volume(&dj.fs, &path, 1);
mbed_official	5:b3b3370574cf	3816	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3817	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3818	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3819	FREE_BUF();
mbed_official	5:b3b3370574cf	3820	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3821	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3822	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	3823	dir = dj.dir;
mbed_official	6:a5fcdbf92056	3824	if (!dir) { /* Root directory */
mbed_official	5:b3b3370574cf	3825	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3826	} else { /* File or sub-directory */
mbed_official	6:a5fcdbf92056	3827	ST_WORD(dir + DIR_WrtTime, fno->ftime);
mbed_official	6:a5fcdbf92056	3828	ST_WORD(dir + DIR_WrtDate, fno->fdate);
mbed_official	5:b3b3370574cf	3829	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3830	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3831	}
mbed_official	5:b3b3370574cf	3832	}
mbed_official	5:b3b3370574cf	3833	}
mbed_official	5:b3b3370574cf	3834
mbed_official	5:b3b3370574cf	3835	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3836	}
emilmont	1:46ce1e16c870	3837
emilmont	1:46ce1e16c870	3838	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	3839	#endif /* _FS_MINIMIZE == 0 */
emilmont	1:46ce1e16c870	3840	#endif /* _FS_MINIMIZE <= 1 */
emilmont	1:46ce1e16c870	3841	#endif /* _FS_MINIMIZE <= 2 */
emilmont	1:46ce1e16c870	3842
emilmont	1:46ce1e16c870	3843
emilmont	1:46ce1e16c870	3844
mbed_official	5:b3b3370574cf	3845
mbed_official	5:b3b3370574cf	3846	#if _USE_LABEL
mbed_official	5:b3b3370574cf	3847	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3848	/* Get volume label */
mbed_official	5:b3b3370574cf	3849	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3850
mbed_official	5:b3b3370574cf	3851	FRESULT f_getlabel (
mbed_official	5:b3b3370574cf	3852	const TCHAR* path, /* Path name of the logical drive number */
mbed_official	5:b3b3370574cf	3853	TCHAR* label, /* Pointer to a buffer to return the volume label */
mbed_official	5:b3b3370574cf	3854	DWORD* vsn /* Pointer to a variable to return the volume serial number */
mbed_official	5:b3b3370574cf	3855	)
mbed_official	5:b3b3370574cf	3856	{
mbed_official	5:b3b3370574cf	3857	FRESULT res;
mbed_official	5:b3b3370574cf	3858	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3859	UINT i, j;
mbed_official	5:b3b3370574cf	3860	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	3861	WCHAR w;
mbed_official	5:b3b3370574cf	3862	#endif
mbed_official	5:b3b3370574cf	3863
mbed_official	5:b3b3370574cf	3864
mbed_official	5:b3b3370574cf	3865	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3866	res = find_volume(&dj.fs, &path, 0);
mbed_official	5:b3b3370574cf	3867
mbed_official	5:b3b3370574cf	3868	/* Get volume label */
mbed_official	5:b3b3370574cf	3869	if (res == FR_OK && label) {
mbed_official	5:b3b3370574cf	3870	dj.sclust = 0; /* Open root directory */
mbed_official	5:b3b3370574cf	3871	res = dir_sdi(&dj, 0);
mbed_official	5:b3b3370574cf	3872	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3873	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
mbed_official	5:b3b3370574cf	3874	if (res == FR_OK) { /* A volume label is exist */
mbed_official	5:b3b3370574cf	3875	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	3876	i = j = 0;
mbed_official	5:b3b3370574cf	3877	do {
mbed_official	6:a5fcdbf92056	3878	w = (i < 11) ? dj.dir[i++] : ' ';
mbed_official	6:a5fcdbf92056	3879	if (IsDBCS1(w) && i < 11 && IsDBCS2(dj.dir[i]))
mbed_official	6:a5fcdbf92056	3880	w = w << 8 \| dj.dir[i++];
mbed_official	5:b3b3370574cf	3881	label[j++] = ff_convert(w, 1); /* OEM -> Unicode */
mbed_official	5:b3b3370574cf	3882	} while (j < 11);
mbed_official	5:b3b3370574cf	3883	#else
mbed_official	6:a5fcdbf92056	3884	mem_cpy(label, dj.dir, 11);
mbed_official	5:b3b3370574cf	3885	#endif
mbed_official	5:b3b3370574cf	3886	j = 11;
mbed_official	5:b3b3370574cf	3887	do {
mbed_official	5:b3b3370574cf	3888	label[j] = 0;
mbed_official	5:b3b3370574cf	3889	if (!j) break;
mbed_official	5:b3b3370574cf	3890	} while (label[--j] == ' ');
mbed_official	5:b3b3370574cf	3891	}
mbed_official	5:b3b3370574cf	3892	if (res == FR_NO_FILE) { /* No label, return nul string */
mbed_official	5:b3b3370574cf	3893	label[0] = 0;
mbed_official	5:b3b3370574cf	3894	res = FR_OK;
mbed_official	5:b3b3370574cf	3895	}
mbed_official	5:b3b3370574cf	3896	}
mbed_official	5:b3b3370574cf	3897	}
mbed_official	5:b3b3370574cf	3898
mbed_official	5:b3b3370574cf	3899	/* Get volume serial number */
mbed_official	5:b3b3370574cf	3900	if (res == FR_OK && vsn) {
mbed_official	5:b3b3370574cf	3901	res = move_window(dj.fs, dj.fs->volbase);
mbed_official	5:b3b3370574cf	3902	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3903	i = dj.fs->fs_type == FS_FAT32 ? BS_VolID32 : BS_VolID;
mbed_official	5:b3b3370574cf	3904	*vsn = LD_DWORD(&dj.fs->win[i]);
mbed_official	5:b3b3370574cf	3905	}
mbed_official	5:b3b3370574cf	3906	}
mbed_official	5:b3b3370574cf	3907
mbed_official	5:b3b3370574cf	3908	LEAVE_FF(dj.fs, res);
mbed_official	5:b3b3370574cf	3909	}
mbed_official	5:b3b3370574cf	3910
mbed_official	5:b3b3370574cf	3911
mbed_official	5:b3b3370574cf	3912
mbed_official	5:b3b3370574cf	3913	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3914	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3915	/* Set volume label */
mbed_official	5:b3b3370574cf	3916	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3917
mbed_official	5:b3b3370574cf	3918	FRESULT f_setlabel (
mbed_official	5:b3b3370574cf	3919	const TCHAR* label /* Pointer to the volume label to set */
mbed_official	5:b3b3370574cf	3920	)
mbed_official	5:b3b3370574cf	3921	{
mbed_official	5:b3b3370574cf	3922	FRESULT res;
mbed_official	5:b3b3370574cf	3923	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3924	BYTE vn[11];
mbed_official	5:b3b3370574cf	3925	UINT i, j, sl;
mbed_official	5:b3b3370574cf	3926	WCHAR w;
mbed_official	5:b3b3370574cf	3927	DWORD tm;
mbed_official	5:b3b3370574cf	3928
mbed_official	5:b3b3370574cf	3929
mbed_official	5:b3b3370574cf	3930	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3931	res = find_volume(&dj.fs, &label, 1);
mbed_official	5:b3b3370574cf	3932	if (res) LEAVE_FF(dj.fs, res);
mbed_official	5:b3b3370574cf	3933
mbed_official	5:b3b3370574cf	3934	/* Create a volume label in directory form */
mbed_official	5:b3b3370574cf	3935	vn[0] = 0;
mbed_official	5:b3b3370574cf	3936	for (sl = 0; label[sl]; sl++) ; /* Get name length */
mbed_official	5:b3b3370574cf	3937	for ( ; sl && label[sl - 1] == ' '; sl--) ; /* Remove trailing spaces */
mbed_official	5:b3b3370574cf	3938	if (sl) { /* Create volume label in directory form */
mbed_official	5:b3b3370574cf	3939	i = j = 0;
mbed_official	5:b3b3370574cf	3940	do {
mbed_official	5:b3b3370574cf	3941	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	3942	w = ff_convert(ff_wtoupper(label[i++]), 0);
mbed_official	5:b3b3370574cf	3943	#else
mbed_official	5:b3b3370574cf	3944	w = (BYTE)label[i++];
mbed_official	5:b3b3370574cf	3945	if (IsDBCS1(w))
mbed_official	5:b3b3370574cf	3946	w = (j < 10 && i < sl && IsDBCS2(label[i])) ? w << 8 \| (BYTE)label[i++] : 0;
mbed_official	5:b3b3370574cf	3947	#if _USE_LFN
mbed_official	5:b3b3370574cf	3948	w = ff_convert(ff_wtoupper(ff_convert(w, 1)), 0);
mbed_official	5:b3b3370574cf	3949	#else
mbed_official	5:b3b3370574cf	3950	if (IsLower(w)) w -= 0x20; /* To upper ASCII characters */
mbed_official	5:b3b3370574cf	3951	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	3952	if (w >= 0x80) w = ExCvt[w - 0x80]; /* To upper extended characters (SBCS cfg) */
mbed_official	5:b3b3370574cf	3953	#else
mbed_official	5:b3b3370574cf	3954	if (!_DF1S && w >= 0x80) w = 0; /* Reject extended characters (ASCII cfg) */
mbed_official	5:b3b3370574cf	3955	#endif
mbed_official	5:b3b3370574cf	3956	#endif
mbed_official	5:b3b3370574cf	3957	#endif
mbed_official	5:b3b3370574cf	3958	if (!w \|\| chk_chr("\"+,.:;<=>\?[]\|\x7F", w) \|\| j >= (UINT)((w >= 0x100) ? 10 : 11)) / Reject invalid characters for volume label */
mbed_official	5:b3b3370574cf	3959	LEAVE_FF(dj.fs, FR_INVALID_NAME);
mbed_official	5:b3b3370574cf	3960	if (w >= 0x100) vn[j++] = (BYTE)(w >> 8);
mbed_official	5:b3b3370574cf	3961	vn[j++] = (BYTE)w;
mbed_official	5:b3b3370574cf	3962	} while (i < sl);
mbed_official	5:b3b3370574cf	3963	while (j < 11) vn[j++] = ' '; /* Fill remaining name field */
mbed_official	5:b3b3370574cf	3964	if (vn[0] == DDEM) LEAVE_FF(dj.fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */
mbed_official	5:b3b3370574cf	3965	}
mbed_official	5:b3b3370574cf	3966
mbed_official	5:b3b3370574cf	3967	/* Set volume label */
mbed_official	5:b3b3370574cf	3968	dj.sclust = 0; /* Open root directory */
mbed_official	5:b3b3370574cf	3969	res = dir_sdi(&dj, 0);
mbed_official	5:b3b3370574cf	3970	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3971	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
mbed_official	5:b3b3370574cf	3972	if (res == FR_OK) { /* A volume label is found */
mbed_official	5:b3b3370574cf	3973	if (vn[0]) {
mbed_official	6:a5fcdbf92056	3974	mem_cpy(dj.dir, vn, 11); /* Change the volume label name */
mbed_official	5:b3b3370574cf	3975	tm = GET_FATTIME();
mbed_official	6:a5fcdbf92056	3976	ST_DWORD(dj.dir + DIR_WrtTime, tm);
mbed_official	5:b3b3370574cf	3977	} else {
mbed_official	6:a5fcdbf92056	3978	dj.dir[0] = DDEM; /* Remove the volume label */
mbed_official	5:b3b3370574cf	3979	}
mbed_official	5:b3b3370574cf	3980	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3981	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3982	} else { /* No volume label is found or error */
mbed_official	5:b3b3370574cf	3983	if (res == FR_NO_FILE) {
mbed_official	5:b3b3370574cf	3984	res = FR_OK;
mbed_official	5:b3b3370574cf	3985	if (vn[0]) { /* Create volume label as new */
mbed_official	5:b3b3370574cf	3986	res = dir_alloc(&dj, 1); /* Allocate an entry for volume label */
mbed_official	5:b3b3370574cf	3987	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	3988	mem_set(dj.dir, 0, SZ_DIRE); /* Set volume label */
mbed_official	6:a5fcdbf92056	3989	mem_cpy(dj.dir, vn, 11);
mbed_official	6:a5fcdbf92056	3990	dj.dir[DIR_Attr] = AM_VOL;
mbed_official	5:b3b3370574cf	3991	tm = GET_FATTIME();
mbed_official	6:a5fcdbf92056	3992	ST_DWORD(dj.dir + DIR_WrtTime, tm);
mbed_official	5:b3b3370574cf	3993	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3994	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3995	}
mbed_official	5:b3b3370574cf	3996	}
mbed_official	5:b3b3370574cf	3997	}
mbed_official	5:b3b3370574cf	3998	}
mbed_official	5:b3b3370574cf	3999	}
mbed_official	5:b3b3370574cf	4000
mbed_official	5:b3b3370574cf	4001	LEAVE_FF(dj.fs, res);
mbed_official	5:b3b3370574cf	4002	}
mbed_official	5:b3b3370574cf	4003
mbed_official	5:b3b3370574cf	4004	#endif /* !_FS_READONLY */
mbed_official	5:b3b3370574cf	4005	#endif /* _USE_LABEL */
mbed_official	5:b3b3370574cf	4006
mbed_official	5:b3b3370574cf	4007
mbed_official	5:b3b3370574cf	4008
emilmont	1:46ce1e16c870	4009	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4010	/* Forward data to the stream directly (available on only tiny cfg) */
emilmont	1:46ce1e16c870	4011	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4012	#if _USE_FORWARD && _FS_TINY
emilmont	1:46ce1e16c870	4013
emilmont	1:46ce1e16c870	4014	FRESULT f_forward (
mbed_official	5:b3b3370574cf	4015	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	4016	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
mbed_official	5:b3b3370574cf	4017	UINT btf, /* Number of bytes to forward */
mbed_official	5:b3b3370574cf	4018	UINT* bf /* Pointer to number of bytes forwarded */
emilmont	1:46ce1e16c870	4019	)
emilmont	1:46ce1e16c870	4020	{
mbed_official	5:b3b3370574cf	4021	FRESULT res;
mbed_official	5:b3b3370574cf	4022	DWORD remain, clst, sect;
mbed_official	5:b3b3370574cf	4023	UINT rcnt;
mbed_official	5:b3b3370574cf	4024	BYTE csect;
mbed_official	5:b3b3370574cf	4025
mbed_official	5:b3b3370574cf	4026
mbed_official	5:b3b3370574cf	4027	bf = 0; / Clear transfer byte counter */
mbed_official	5:b3b3370574cf	4028
mbed_official	5:b3b3370574cf	4029	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	4030	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	4031	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	4032	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mbed_official	5:b3b3370574cf	4033	if (!(fp->flag & FA_READ)) /* Check access mode */
mbed_official	5:b3b3370574cf	4034	LEAVE_FF(fp->fs, FR_DENIED);
mbed_official	5:b3b3370574cf	4035
mbed_official	5:b3b3370574cf	4036	remain = fp->fsize - fp->fptr;
mbed_official	5:b3b3370574cf	4037	if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */
mbed_official	5:b3b3370574cf	4038
mbed_official	5:b3b3370574cf	4039	for ( ; btf && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
mbed_official	5:b3b3370574cf	4040	fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {
mbed_official	5:b3b3370574cf	4041	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mbed_official	5:b3b3370574cf	4042	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mbed_official	5:b3b3370574cf	4043	if (!csect) { /* On the cluster boundary? */
mbed_official	5:b3b3370574cf	4044	clst = (fp->fptr == 0) ? /* On the top of the file? */
mbed_official	5:b3b3370574cf	4045	fp->sclust : get_fat(fp->fs, fp->clust);
mbed_official	5:b3b3370574cf	4046	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	4047	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	4048	fp->clust = clst; /* Update current cluster */
mbed_official	5:b3b3370574cf	4049	}
mbed_official	5:b3b3370574cf	4050	}
mbed_official	5:b3b3370574cf	4051	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
mbed_official	5:b3b3370574cf	4052	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	4053	sect += csect;
mbed_official	5:b3b3370574cf	4054	if (move_window(fp->fs, sect) != FR_OK) /* Move sector window */
mbed_official	5:b3b3370574cf	4055	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	4056	fp->dsect = sect;
mbed_official	5:b3b3370574cf	4057	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
mbed_official	5:b3b3370574cf	4058	if (rcnt > btf) rcnt = btf;
mbed_official	5:b3b3370574cf	4059	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
mbed_official	5:b3b3370574cf	4060	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	4061	}
mbed_official	5:b3b3370574cf	4062
mbed_official	5:b3b3370574cf	4063	LEAVE_FF(fp->fs, FR_OK);
emilmont	1:46ce1e16c870	4064	}
emilmont	1:46ce1e16c870	4065	#endif /* _USE_FORWARD */
emilmont	1:46ce1e16c870	4066
emilmont	1:46ce1e16c870	4067
emilmont	1:46ce1e16c870	4068
emilmont	1:46ce1e16c870	4069	#if _USE_MKFS && !_FS_READONLY
emilmont	1:46ce1e16c870	4070	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4071	/* Create file system on the logical drive */
emilmont	1:46ce1e16c870	4072	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4073	#define N_ROOTDIR 512 /* Number of root directory entries for FAT12/16 */
mbed_official	5:b3b3370574cf	4074	#define N_FATS 1 /* Number of FATs (1 or 2) */
emilmont	1:46ce1e16c870	4075
emilmont	1:46ce1e16c870	4076
emilmont	1:46ce1e16c870	4077	FRESULT f_mkfs (
mbed_official	5:b3b3370574cf	4078	const TCHAR* path, /* Logical drive number */
mbed_official	5:b3b3370574cf	4079	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
mbed_official	5:b3b3370574cf	4080	UINT au /* Size of allocation unit in unit of byte or sector */
emilmont	1:46ce1e16c870	4081	)
emilmont	1:46ce1e16c870	4082	{
mbed_official	5:b3b3370574cf	4083	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
mbed_official	5:b3b3370574cf	4084	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
mbed_official	5:b3b3370574cf	4085	int vol;
mbed_official	5:b3b3370574cf	4086	BYTE fmt, md, sys, *tbl, pdrv, part;
mbed_official	5:b3b3370574cf	4087	DWORD n_clst, vs, n, wsect;
mbed_official	5:b3b3370574cf	4088	UINT i;
mbed_official	5:b3b3370574cf	4089	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
mbed_official	5:b3b3370574cf	4090	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
mbed_official	5:b3b3370574cf	4091	FATFS *fs;
mbed_official	5:b3b3370574cf	4092	DSTATUS stat;
mbed_official	5:b3b3370574cf	4093	#if _USE_TRIM
mbed_official	5:b3b3370574cf	4094	DWORD eb[2];
mbed_official	5:b3b3370574cf	4095	#endif
mbed_official	5:b3b3370574cf	4096
mbed_official	5:b3b3370574cf	4097
mbed_official	5:b3b3370574cf	4098	/* Check mounted drive and clear work area */
mbed_official	5:b3b3370574cf	4099	if (sfd > 1) return FR_INVALID_PARAMETER;
mbed_official	5:b3b3370574cf	4100	vol = get_ldnumber(&path);
mbed_official	5:b3b3370574cf	4101	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	4102	fs = FatFs[vol];
mbed_official	5:b3b3370574cf	4103	if (!fs) return FR_NOT_ENABLED;
mbed_official	5:b3b3370574cf	4104	fs->fs_type = 0;
mbed_official	5:b3b3370574cf	4105	pdrv = LD2PD(vol); /* Physical drive */
mbed_official	5:b3b3370574cf	4106	part = LD2PT(vol); /* Partition (0:auto detect, 1-4:get from partition table)*/
mbed_official	5:b3b3370574cf	4107
mbed_official	5:b3b3370574cf	4108	/* Get disk statics */
mbed_official	5:b3b3370574cf	4109	stat = disk_initialize(pdrv);
mbed_official	5:b3b3370574cf	4110	if (stat & STA_NOINIT) return FR_NOT_READY;
mbed_official	5:b3b3370574cf	4111	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	4112	#if _MAX_SS != _MIN_SS /* Get disk sector size */
mbed_official	5:b3b3370574cf	4113	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS \|\| SS(fs) < _MIN_SS)
mbed_official	5:b3b3370574cf	4114	return FR_DISK_ERR;
emilmont	1:46ce1e16c870	4115	#endif
mbed_official	5:b3b3370574cf	4116	if (_MULTI_PARTITION && part) {
mbed_official	5:b3b3370574cf	4117	/* Get partition information from partition table in the MBR */
mbed_official	5:b3b3370574cf	4118	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4119	if (LD_WORD(fs->win + BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
mbed_official	5:b3b3370574cf	4120	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mbed_official	5:b3b3370574cf	4121	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
mbed_official	5:b3b3370574cf	4122	b_vol = LD_DWORD(tbl + 8); /* Volume start sector */
mbed_official	5:b3b3370574cf	4123	n_vol = LD_DWORD(tbl + 12); /* Volume size */
mbed_official	5:b3b3370574cf	4124	} else {
mbed_official	5:b3b3370574cf	4125	/* Create a partition in this function */
mbed_official	5:b3b3370574cf	4126	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
mbed_official	5:b3b3370574cf	4127	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4128	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
mbed_official	5:b3b3370574cf	4129	n_vol -= b_vol; /* Volume size */
mbed_official	5:b3b3370574cf	4130	}
mbed_official	5:b3b3370574cf	4131
mbed_official	5:b3b3370574cf	4132	if (au & (au - 1)) au = 0;
mbed_official	5:b3b3370574cf	4133	if (!au) { /* AU auto selection */
mbed_official	5:b3b3370574cf	4134	vs = n_vol / (2000 / (SS(fs) / 512));
mbed_official	5:b3b3370574cf	4135	for (i = 0; vs < vst[i]; i++) ;
mbed_official	5:b3b3370574cf	4136	au = cst[i];
mbed_official	5:b3b3370574cf	4137	}
mbed_official	5:b3b3370574cf	4138	if (au >= _MIN_SS) au /= SS(fs); /* Number of sectors per cluster */
mbed_official	5:b3b3370574cf	4139	if (!au) au = 1;
mbed_official	5:b3b3370574cf	4140	if (au > 128) au = 128;
mbed_official	5:b3b3370574cf	4141
mbed_official	5:b3b3370574cf	4142	/* Pre-compute number of clusters and FAT sub-type */
mbed_official	5:b3b3370574cf	4143	n_clst = n_vol / au;
mbed_official	5:b3b3370574cf	4144	fmt = FS_FAT12;
mbed_official	5:b3b3370574cf	4145	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
mbed_official	5:b3b3370574cf	4146	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
mbed_official	5:b3b3370574cf	4147
mbed_official	5:b3b3370574cf	4148	/* Determine offset and size of FAT structure */
mbed_official	5:b3b3370574cf	4149	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4150	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
mbed_official	5:b3b3370574cf	4151	n_rsv = 32;
mbed_official	5:b3b3370574cf	4152	n_dir = 0;
mbed_official	5:b3b3370574cf	4153	} else {
mbed_official	5:b3b3370574cf	4154	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
mbed_official	5:b3b3370574cf	4155	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
mbed_official	5:b3b3370574cf	4156	n_rsv = 1;
mbed_official	5:b3b3370574cf	4157	n_dir = (DWORD)N_ROOTDIR * SZ_DIRE / SS(fs);
mbed_official	5:b3b3370574cf	4158	}
mbed_official	5:b3b3370574cf	4159	b_fat = b_vol + n_rsv; /* FAT area start sector */
mbed_official	5:b3b3370574cf	4160	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
mbed_official	5:b3b3370574cf	4161	b_data = b_dir + n_dir; /* Data area start sector */
mbed_official	5:b3b3370574cf	4162	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
mbed_official	5:b3b3370574cf	4163
mbed_official	5:b3b3370574cf	4164	/* Align data start sector to erase block boundary (for flash memory media) */
mbed_official	5:b3b3370574cf	4165	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
mbed_official	5:b3b3370574cf	4166	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
mbed_official	5:b3b3370574cf	4167	n = (n - b_data) / N_FATS;
mbed_official	5:b3b3370574cf	4168	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
mbed_official	5:b3b3370574cf	4169	n_rsv += n;
mbed_official	5:b3b3370574cf	4170	b_fat += n;
mbed_official	5:b3b3370574cf	4171	} else { /* FAT12/16: Expand FAT size */
mbed_official	5:b3b3370574cf	4172	n_fat += n;
mbed_official	5:b3b3370574cf	4173	}
mbed_official	5:b3b3370574cf	4174
mbed_official	5:b3b3370574cf	4175	/* Determine number of clusters and final check of validity of the FAT sub-type */
mbed_official	5:b3b3370574cf	4176	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
mbed_official	5:b3b3370574cf	4177	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
mbed_official	5:b3b3370574cf	4178	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
mbed_official	5:b3b3370574cf	4179	return FR_MKFS_ABORTED;
mbed_official	5:b3b3370574cf	4180
mbed_official	5:b3b3370574cf	4181	/* Determine system ID in the partition table */
mbed_official	5:b3b3370574cf	4182	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4183	sys = 0x0C; /* FAT32X */
mbed_official	5:b3b3370574cf	4184	} else {
mbed_official	5:b3b3370574cf	4185	if (fmt == FS_FAT12 && n_vol < 0x10000) {
mbed_official	5:b3b3370574cf	4186	sys = 0x01; /* FAT12(<65536) */
mbed_official	5:b3b3370574cf	4187	} else {
mbed_official	5:b3b3370574cf	4188	sys = (n_vol < 0x10000) ? 0x04 : 0x06; /* FAT16(<65536) : FAT12/16(>=65536) */
mbed_official	5:b3b3370574cf	4189	}
mbed_official	5:b3b3370574cf	4190	}
mbed_official	5:b3b3370574cf	4191
mbed_official	5:b3b3370574cf	4192	if (_MULTI_PARTITION && part) {
mbed_official	5:b3b3370574cf	4193	/* Update system ID in the partition table */
mbed_official	5:b3b3370574cf	4194	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mbed_official	5:b3b3370574cf	4195	tbl[4] = sys;
mbed_official	5:b3b3370574cf	4196	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to teh MBR */
mbed_official	5:b3b3370574cf	4197	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4198	md = 0xF8;
mbed_official	5:b3b3370574cf	4199	} else {
mbed_official	5:b3b3370574cf	4200	if (sfd) { /* No partition table (SFD) */
mbed_official	5:b3b3370574cf	4201	md = 0xF0;
mbed_official	5:b3b3370574cf	4202	} else { /* Create partition table (FDISK) */
mbed_official	5:b3b3370574cf	4203	mem_set(fs->win, 0, SS(fs));
mbed_official	5:b3b3370574cf	4204	tbl = fs->win + MBR_Table; /* Create partition table for single partition in the drive */
mbed_official	5:b3b3370574cf	4205	tbl[1] = 1; /* Partition start head */
mbed_official	5:b3b3370574cf	4206	tbl[2] = 1; /* Partition start sector */
mbed_official	5:b3b3370574cf	4207	tbl[3] = 0; /* Partition start cylinder */
mbed_official	5:b3b3370574cf	4208	tbl[4] = sys; /* System type */
mbed_official	5:b3b3370574cf	4209	tbl[5] = 254; /* Partition end head */
mbed_official	5:b3b3370574cf	4210	n = (b_vol + n_vol) / 63 / 255;
mbed_official	5:b3b3370574cf	4211	tbl[6] = (BYTE)(n >> 2 \| 63); /* Partition end sector */
mbed_official	5:b3b3370574cf	4212	tbl[7] = (BYTE)n; /* End cylinder */
mbed_official	5:b3b3370574cf	4213	ST_DWORD(tbl + 8, 63); /* Partition start in LBA */
mbed_official	5:b3b3370574cf	4214	ST_DWORD(tbl + 12, n_vol); /* Partition size in LBA */
mbed_official	5:b3b3370574cf	4215	ST_WORD(fs->win + BS_55AA, 0xAA55); /* MBR signature */
mbed_official	5:b3b3370574cf	4216	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR */
mbed_official	5:b3b3370574cf	4217	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4218	md = 0xF8;
mbed_official	5:b3b3370574cf	4219	}
mbed_official	5:b3b3370574cf	4220	}
mbed_official	5:b3b3370574cf	4221
mbed_official	5:b3b3370574cf	4222	/* Create BPB in the VBR */
mbed_official	5:b3b3370574cf	4223	tbl = fs->win; /* Clear sector */
mbed_official	5:b3b3370574cf	4224	mem_set(tbl, 0, SS(fs));
mbed_official	5:b3b3370574cf	4225	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
mbed_official	5:b3b3370574cf	4226	i = SS(fs); /* Sector size */
mbed_official	5:b3b3370574cf	4227	ST_WORD(tbl + BPB_BytsPerSec, i);
mbed_official	5:b3b3370574cf	4228	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
mbed_official	5:b3b3370574cf	4229	ST_WORD(tbl + BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
mbed_official	5:b3b3370574cf	4230	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
mbed_official	5:b3b3370574cf	4231	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of root directory entries */
mbed_official	5:b3b3370574cf	4232	ST_WORD(tbl + BPB_RootEntCnt, i);
mbed_official	5:b3b3370574cf	4233	if (n_vol < 0x10000) { /* Number of total sectors */
mbed_official	5:b3b3370574cf	4234	ST_WORD(tbl + BPB_TotSec16, n_vol);
mbed_official	5:b3b3370574cf	4235	} else {
mbed_official	5:b3b3370574cf	4236	ST_DWORD(tbl + BPB_TotSec32, n_vol);
mbed_official	5:b3b3370574cf	4237	}
mbed_official	5:b3b3370574cf	4238	tbl[BPB_Media] = md; /* Media descriptor */
mbed_official	5:b3b3370574cf	4239	ST_WORD(tbl + BPB_SecPerTrk, 63); /* Number of sectors per track */
mbed_official	5:b3b3370574cf	4240	ST_WORD(tbl + BPB_NumHeads, 255); /* Number of heads */
mbed_official	5:b3b3370574cf	4241	ST_DWORD(tbl + BPB_HiddSec, b_vol); /* Hidden sectors */
mbed_official	5:b3b3370574cf	4242	n = GET_FATTIME(); /* Use current time as VSN */
mbed_official	5:b3b3370574cf	4243	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4244	ST_DWORD(tbl + BS_VolID32, n); /* VSN */
mbed_official	5:b3b3370574cf	4245	ST_DWORD(tbl + BPB_FATSz32, n_fat); /* Number of sectors per FAT */
mbed_official	5:b3b3370574cf	4246	ST_DWORD(tbl + BPB_RootClus, 2); /* Root directory start cluster (2) */
mbed_official	5:b3b3370574cf	4247	ST_WORD(tbl + BPB_FSInfo, 1); /* FSINFO record offset (VBR + 1) */
mbed_official	5:b3b3370574cf	4248	ST_WORD(tbl + BPB_BkBootSec, 6); /* Backup boot record offset (VBR + 6) */
mbed_official	5:b3b3370574cf	4249	tbl[BS_DrvNum32] = 0x80; /* Drive number */
mbed_official	5:b3b3370574cf	4250	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
mbed_official	5:b3b3370574cf	4251	mem_cpy(tbl + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
mbed_official	5:b3b3370574cf	4252	} else {
mbed_official	5:b3b3370574cf	4253	ST_DWORD(tbl + BS_VolID, n); /* VSN */
mbed_official	5:b3b3370574cf	4254	ST_WORD(tbl + BPB_FATSz16, n_fat); /* Number of sectors per FAT */
mbed_official	5:b3b3370574cf	4255	tbl[BS_DrvNum] = 0x80; /* Drive number */
mbed_official	5:b3b3370574cf	4256	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
mbed_official	5:b3b3370574cf	4257	mem_cpy(tbl + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
mbed_official	5:b3b3370574cf	4258	}
mbed_official	5:b3b3370574cf	4259	ST_WORD(tbl + BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
mbed_official	5:b3b3370574cf	4260	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
mbed_official	5:b3b3370574cf	4261	return FR_DISK_ERR;
mbed_official	6:a5fcdbf92056	4262	if (fmt == FS_FAT32) /* Write it to the backup VBR if needed (VBR + 6) */
mbed_official	5:b3b3370574cf	4263	disk_write(pdrv, tbl, b_vol + 6, 1);
mbed_official	5:b3b3370574cf	4264
mbed_official	5:b3b3370574cf	4265	/* Initialize FAT area */
mbed_official	5:b3b3370574cf	4266	wsect = b_fat;
mbed_official	5:b3b3370574cf	4267	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
mbed_official	5:b3b3370574cf	4268	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
mbed_official	5:b3b3370574cf	4269	n = md; /* Media descriptor byte */
mbed_official	5:b3b3370574cf	4270	if (fmt != FS_FAT32) {
mbed_official	5:b3b3370574cf	4271	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
mbed_official	5:b3b3370574cf	4272	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT12/16) */
mbed_official	5:b3b3370574cf	4273	} else {
mbed_official	5:b3b3370574cf	4274	n \|= 0xFFFFFF00;
mbed_official	5:b3b3370574cf	4275	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT32) */
mbed_official	5:b3b3370574cf	4276	ST_DWORD(tbl + 4, 0xFFFFFFFF);
mbed_official	5:b3b3370574cf	4277	ST_DWORD(tbl + 8, 0x0FFFFFFF); /* Reserve cluster #2 for root directory */
mbed_official	5:b3b3370574cf	4278	}
mbed_official	5:b3b3370574cf	4279	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mbed_official	5:b3b3370574cf	4280	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4281	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
mbed_official	5:b3b3370574cf	4282	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
mbed_official	5:b3b3370574cf	4283	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mbed_official	5:b3b3370574cf	4284	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4285	}
mbed_official	5:b3b3370574cf	4286	}
mbed_official	5:b3b3370574cf	4287
mbed_official	5:b3b3370574cf	4288	/* Initialize root directory */
mbed_official	5:b3b3370574cf	4289	i = (fmt == FS_FAT32) ? au : (UINT)n_dir;
mbed_official	5:b3b3370574cf	4290	do {
mbed_official	5:b3b3370574cf	4291	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mbed_official	5:b3b3370574cf	4292	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4293	} while (--i);
mbed_official	5:b3b3370574cf	4294
mbed_official	5:b3b3370574cf	4295	#if _USE_TRIM /* Erase data area if needed */
mbed_official	5:b3b3370574cf	4296	{
mbed_official	5:b3b3370574cf	4297	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
mbed_official	5:b3b3370574cf	4298	disk_ioctl(pdrv, CTRL_TRIM, eb);
mbed_official	5:b3b3370574cf	4299	}
emilmont	1:46ce1e16c870	4300	#endif
emilmont	1:46ce1e16c870	4301
mbed_official	5:b3b3370574cf	4302	/* Create FSINFO if needed */
mbed_official	5:b3b3370574cf	4303	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4304	ST_DWORD(tbl + FSI_LeadSig, 0x41615252);
mbed_official	5:b3b3370574cf	4305	ST_DWORD(tbl + FSI_StrucSig, 0x61417272);
mbed_official	5:b3b3370574cf	4306	ST_DWORD(tbl + FSI_Free_Count, n_clst - 1); /* Number of free clusters */
mbed_official	5:b3b3370574cf	4307	ST_DWORD(tbl + FSI_Nxt_Free, 2); /* Last allocated cluster# */
mbed_official	5:b3b3370574cf	4308	ST_WORD(tbl + BS_55AA, 0xAA55);
mbed_official	5:b3b3370574cf	4309	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR + 1) */
mbed_official	5:b3b3370574cf	4310	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR + 7) */
mbed_official	5:b3b3370574cf	4311	}
mbed_official	5:b3b3370574cf	4312
mbed_official	5:b3b3370574cf	4313	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
emilmont	1:46ce1e16c870	4314	}
emilmont	1:46ce1e16c870	4315
emilmont	1:46ce1e16c870	4316
mbed_official	5:b3b3370574cf	4317
mbed_official	5:b3b3370574cf	4318	#if _MULTI_PARTITION
emilmont	1:46ce1e16c870	4319	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4320	/* Create partition table on the physical drive */
emilmont	1:46ce1e16c870	4321	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4322
emilmont	1:46ce1e16c870	4323	FRESULT f_fdisk (
mbed_official	5:b3b3370574cf	4324	BYTE pdrv, /* Physical drive number */
mbed_official	5:b3b3370574cf	4325	const DWORD szt[], /* Pointer to the size table for each partitions */
mbed_official	5:b3b3370574cf	4326	void* work /* Pointer to the working buffer */
emilmont	1:46ce1e16c870	4327	)
emilmont	1:46ce1e16c870	4328	{
mbed_official	5:b3b3370574cf	4329	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
mbed_official	5:b3b3370574cf	4330	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
mbed_official	5:b3b3370574cf	4331	DSTATUS stat;
mbed_official	5:b3b3370574cf	4332	DWORD sz_disk, sz_part, s_part;
mbed_official	5:b3b3370574cf	4333
mbed_official	5:b3b3370574cf	4334
mbed_official	5:b3b3370574cf	4335	stat = disk_initialize(pdrv);
mbed_official	5:b3b3370574cf	4336	if (stat & STA_NOINIT) return FR_NOT_READY;
mbed_official	5:b3b3370574cf	4337	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	4338	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4339
mbed_official	5:b3b3370574cf	4340	/* Determine CHS in the table regardless of the drive geometry */
mbed_official	5:b3b3370574cf	4341	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
mbed_official	5:b3b3370574cf	4342	if (n == 256) n--;
mbed_official	5:b3b3370574cf	4343	e_hd = n - 1;
mbed_official	5:b3b3370574cf	4344	sz_cyl = 63 * n;
mbed_official	5:b3b3370574cf	4345	tot_cyl = sz_disk / sz_cyl;
mbed_official	5:b3b3370574cf	4346
mbed_official	5:b3b3370574cf	4347	/* Create partition table */
mbed_official	5:b3b3370574cf	4348	mem_set(buf, 0, _MAX_SS);
mbed_official	5:b3b3370574cf	4349	p = buf + MBR_Table; b_cyl = 0;
mbed_official	5:b3b3370574cf	4350	for (i = 0; i < 4; i++, p += SZ_PTE) {
mbed_official	5:b3b3370574cf	4351	p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
mbed_official	5:b3b3370574cf	4352	if (!p_cyl) continue;
mbed_official	5:b3b3370574cf	4353	s_part = (DWORD)sz_cyl * b_cyl;
mbed_official	5:b3b3370574cf	4354	sz_part = (DWORD)sz_cyl * p_cyl;
mbed_official	5:b3b3370574cf	4355	if (i == 0) { /* Exclude first track of cylinder 0 */
mbed_official	5:b3b3370574cf	4356	s_hd = 1;
mbed_official	5:b3b3370574cf	4357	s_part += 63; sz_part -= 63;
mbed_official	5:b3b3370574cf	4358	} else {
mbed_official	5:b3b3370574cf	4359	s_hd = 0;
mbed_official	5:b3b3370574cf	4360	}
mbed_official	5:b3b3370574cf	4361	e_cyl = b_cyl + p_cyl - 1;
mbed_official	5:b3b3370574cf	4362	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
mbed_official	5:b3b3370574cf	4363
mbed_official	5:b3b3370574cf	4364	/* Set partition table */
mbed_official	5:b3b3370574cf	4365	p[1] = s_hd; /* Start head */
mbed_official	5:b3b3370574cf	4366	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
mbed_official	5:b3b3370574cf	4367	p[3] = (BYTE)b_cyl; /* Start cylinder */
mbed_official	5:b3b3370574cf	4368	p[4] = 0x06; /* System type (temporary setting) */
mbed_official	5:b3b3370574cf	4369	p[5] = e_hd; /* End head */
mbed_official	5:b3b3370574cf	4370	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
mbed_official	5:b3b3370574cf	4371	p[7] = (BYTE)e_cyl; /* End cylinder */
mbed_official	5:b3b3370574cf	4372	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
mbed_official	5:b3b3370574cf	4373	ST_DWORD(p + 12, sz_part); /* Partition size */
mbed_official	5:b3b3370574cf	4374
mbed_official	5:b3b3370574cf	4375	/* Next partition */
mbed_official	5:b3b3370574cf	4376	b_cyl += p_cyl;
mbed_official	5:b3b3370574cf	4377	}
mbed_official	5:b3b3370574cf	4378	ST_WORD(p, 0xAA55);
mbed_official	5:b3b3370574cf	4379
mbed_official	5:b3b3370574cf	4380	/* Write it to the MBR */
mbed_official	5:b3b3370574cf	4381	return (disk_write(pdrv, buf, 0, 1) != RES_OK \|\| disk_ioctl(pdrv, CTRL_SYNC, 0) != RES_OK) ? FR_DISK_ERR : FR_OK;
emilmont	1:46ce1e16c870	4382	}
emilmont	1:46ce1e16c870	4383
emilmont	1:46ce1e16c870	4384
mbed_official	5:b3b3370574cf	4385	#endif /* _MULTI_PARTITION */
emilmont	1:46ce1e16c870	4386	#endif /* _USE_MKFS && !_FS_READONLY */
emilmont	1:46ce1e16c870	4387
emilmont	1:46ce1e16c870	4388
emilmont	1:46ce1e16c870	4389
emilmont	1:46ce1e16c870	4390
emilmont	1:46ce1e16c870	4391	#if _USE_STRFUNC
emilmont	1:46ce1e16c870	4392	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4393	/* Get a string from the file */
emilmont	1:46ce1e16c870	4394	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4395
emilmont	1:46ce1e16c870	4396	TCHAR* f_gets (
mbed_official	5:b3b3370574cf	4397	TCHAR* buff, /* Pointer to the string buffer to read */
mbed_official	5:b3b3370574cf	4398	int len, /* Size of string buffer (characters) */
mbed_official	5:b3b3370574cf	4399	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	4400	)
emilmont	1:46ce1e16c870	4401	{
mbed_official	5:b3b3370574cf	4402	int n = 0;
mbed_official	5:b3b3370574cf	4403	TCHAR c, *p = buff;
mbed_official	5:b3b3370574cf	4404	BYTE s[2];
mbed_official	5:b3b3370574cf	4405	UINT rc;
mbed_official	5:b3b3370574cf	4406
mbed_official	5:b3b3370574cf	4407
mbed_official	5:b3b3370574cf	4408	while (n < len - 1) { /* Read characters until buffer gets filled */
mbed_official	5:b3b3370574cf	4409	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	4410	#if _STRF_ENCODE == 3 /* Read a character in UTF-8 */
mbed_official	5:b3b3370574cf	4411	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4412	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4413	c = s[0];
mbed_official	5:b3b3370574cf	4414	if (c >= 0x80) {
mbed_official	5:b3b3370574cf	4415	if (c < 0xC0) continue; /* Skip stray trailer */
mbed_official	5:b3b3370574cf	4416	if (c < 0xE0) { /* Two-byte sequence */
mbed_official	5:b3b3370574cf	4417	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4418	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4419	c = (c & 0x1F) << 6 \| (s[0] & 0x3F);
mbed_official	5:b3b3370574cf	4420	if (c < 0x80) c = '?';
mbed_official	5:b3b3370574cf	4421	} else {
mbed_official	5:b3b3370574cf	4422	if (c < 0xF0) { /* Three-byte sequence */
mbed_official	5:b3b3370574cf	4423	f_read(fp, s, 2, &rc);
mbed_official	5:b3b3370574cf	4424	if (rc != 2) break;
mbed_official	5:b3b3370574cf	4425	c = c << 12 \| (s[0] & 0x3F) << 6 \| (s[1] & 0x3F);
mbed_official	5:b3b3370574cf	4426	if (c < 0x800) c = '?';
mbed_official	5:b3b3370574cf	4427	} else { /* Reject four-byte sequence */
mbed_official	5:b3b3370574cf	4428	c = '?';
mbed_official	5:b3b3370574cf	4429	}
mbed_official	5:b3b3370574cf	4430	}
mbed_official	5:b3b3370574cf	4431	}
mbed_official	5:b3b3370574cf	4432	#elif _STRF_ENCODE == 2 /* Read a character in UTF-16BE */
mbed_official	5:b3b3370574cf	4433	f_read(fp, s, 2, &rc);
mbed_official	5:b3b3370574cf	4434	if (rc != 2) break;
mbed_official	5:b3b3370574cf	4435	c = s[1] + (s[0] << 8);
mbed_official	5:b3b3370574cf	4436	#elif _STRF_ENCODE == 1 /* Read a character in UTF-16LE */
mbed_official	5:b3b3370574cf	4437	f_read(fp, s, 2, &rc);
mbed_official	5:b3b3370574cf	4438	if (rc != 2) break;
mbed_official	5:b3b3370574cf	4439	c = s[0] + (s[1] << 8);
mbed_official	5:b3b3370574cf	4440	#else /* Read a character in ANSI/OEM */
mbed_official	5:b3b3370574cf	4441	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4442	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4443	c = s[0];
mbed_official	5:b3b3370574cf	4444	if (IsDBCS1(c)) {
mbed_official	5:b3b3370574cf	4445	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4446	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4447	c = (c << 8) + s[0];
mbed_official	5:b3b3370574cf	4448	}
mbed_official	5:b3b3370574cf	4449	c = ff_convert(c, 1); /* OEM -> Unicode */
mbed_official	5:b3b3370574cf	4450	if (!c) c = '?';
emilmont	1:46ce1e16c870	4451	#endif
mbed_official	5:b3b3370574cf	4452	#else /* Read a character without conversion */
mbed_official	5:b3b3370574cf	4453	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4454	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4455	c = s[0];
emilmont	1:46ce1e16c870	4456	#endif
mbed_official	5:b3b3370574cf	4457	if (_USE_STRFUNC == 2 && c == '\r') continue; /* Strip '\r' */
mbed_official	5:b3b3370574cf	4458	*p++ = c;
mbed_official	5:b3b3370574cf	4459	n++;
mbed_official	5:b3b3370574cf	4460	if (c == '\n') break; /* Break on EOL */
mbed_official	5:b3b3370574cf	4461	}
mbed_official	5:b3b3370574cf	4462	*p = 0;
mbed_official	5:b3b3370574cf	4463	return n ? buff : 0; /* When no data read (eof or error), return with error. */
emilmont	1:46ce1e16c870	4464	}
emilmont	1:46ce1e16c870	4465
emilmont	1:46ce1e16c870	4466
emilmont	1:46ce1e16c870	4467
mbed_official	5:b3b3370574cf	4468
emilmont	1:46ce1e16c870	4469	#if !_FS_READONLY
emilmont	1:46ce1e16c870	4470	#include <stdarg.h>
emilmont	1:46ce1e16c870	4471	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4472	/* Put a character to the file */
emilmont	1:46ce1e16c870	4473	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4474
mbed_official	5:b3b3370574cf	4475	typedef struct {
mbed_official	5:b3b3370574cf	4476	FIL* fp;
mbed_official	5:b3b3370574cf	4477	int idx, nchr;
mbed_official	5:b3b3370574cf	4478	BYTE buf[64];
mbed_official	5:b3b3370574cf	4479	} putbuff;
mbed_official	5:b3b3370574cf	4480
mbed_official	5:b3b3370574cf	4481
mbed_official	5:b3b3370574cf	4482	static
mbed_official	5:b3b3370574cf	4483	void putc_bfd (
mbed_official	5:b3b3370574cf	4484	putbuff* pb,
mbed_official	5:b3b3370574cf	4485	TCHAR c
emilmont	1:46ce1e16c870	4486	)
emilmont	1:46ce1e16c870	4487	{
mbed_official	5:b3b3370574cf	4488	UINT bw;
mbed_official	5:b3b3370574cf	4489	int i;
mbed_official	5:b3b3370574cf	4490
mbed_official	5:b3b3370574cf	4491
mbed_official	5:b3b3370574cf	4492	if (_USE_STRFUNC == 2 && c == '\n') /* LF -> CRLF conversion */
mbed_official	5:b3b3370574cf	4493	putc_bfd(pb, '\r');
mbed_official	5:b3b3370574cf	4494
mbed_official	5:b3b3370574cf	4495	i = pb->idx; /* Buffer write index (-1:error) */
mbed_official	5:b3b3370574cf	4496	if (i < 0) return;
mbed_official	5:b3b3370574cf	4497
mbed_official	5:b3b3370574cf	4498	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	4499	#if _STRF_ENCODE == 3 /* Write a character in UTF-8 */
mbed_official	5:b3b3370574cf	4500	if (c < 0x80) { /* 7-bit */
mbed_official	5:b3b3370574cf	4501	pb->buf[i++] = (BYTE)c;
mbed_official	5:b3b3370574cf	4502	} else {
mbed_official	5:b3b3370574cf	4503	if (c < 0x800) { /* 11-bit */
mbed_official	5:b3b3370574cf	4504	pb->buf[i++] = (BYTE)(0xC0 \| c >> 6);
mbed_official	5:b3b3370574cf	4505	} else { /* 16-bit */
mbed_official	5:b3b3370574cf	4506	pb->buf[i++] = (BYTE)(0xE0 \| c >> 12);
mbed_official	5:b3b3370574cf	4507	pb->buf[i++] = (BYTE)(0x80 \| (c >> 6 & 0x3F));
mbed_official	5:b3b3370574cf	4508	}
mbed_official	5:b3b3370574cf	4509	pb->buf[i++] = (BYTE)(0x80 \| (c & 0x3F));
mbed_official	5:b3b3370574cf	4510	}
mbed_official	5:b3b3370574cf	4511	#elif _STRF_ENCODE == 2 /* Write a character in UTF-16BE */
mbed_official	5:b3b3370574cf	4512	pb->buf[i++] = (BYTE)(c >> 8);
mbed_official	5:b3b3370574cf	4513	pb->buf[i++] = (BYTE)c;
mbed_official	5:b3b3370574cf	4514	#elif _STRF_ENCODE == 1 /* Write a character in UTF-16LE */
mbed_official	5:b3b3370574cf	4515	pb->buf[i++] = (BYTE)c;
mbed_official	5:b3b3370574cf	4516	pb->buf[i++] = (BYTE)(c >> 8);
mbed_official	5:b3b3370574cf	4517	#else /* Write a character in ANSI/OEM */
mbed_official	5:b3b3370574cf	4518	c = ff_convert(c, 0); /* Unicode -> OEM */
mbed_official	5:b3b3370574cf	4519	if (!c) c = '?';
mbed_official	5:b3b3370574cf	4520	if (c >= 0x100)
mbed_official	5:b3b3370574cf	4521	pb->buf[i++] = (BYTE)(c >> 8);
mbed_official	5:b3b3370574cf	4522	pb->buf[i++] = (BYTE)c;
emilmont	1:46ce1e16c870	4523	#endif
mbed_official	5:b3b3370574cf	4524	#else /* Write a character without conversion */
mbed_official	5:b3b3370574cf	4525	pb->buf[i++] = (BYTE)c;
emilmont	1:46ce1e16c870	4526	#endif
mbed_official	5:b3b3370574cf	4527
mbed_official	5:b3b3370574cf	4528	if (i >= (int)(sizeof pb->buf) - 3) { /* Write buffered characters to the file */
mbed_official	5:b3b3370574cf	4529	f_write(pb->fp, pb->buf, (UINT)i, &bw);
mbed_official	5:b3b3370574cf	4530	i = (bw == (UINT)i) ? 0 : -1;
mbed_official	5:b3b3370574cf	4531	}
mbed_official	5:b3b3370574cf	4532	pb->idx = i;
mbed_official	5:b3b3370574cf	4533	pb->nchr++;
mbed_official	5:b3b3370574cf	4534	}
mbed_official	5:b3b3370574cf	4535
mbed_official	5:b3b3370574cf	4536
mbed_official	5:b3b3370574cf	4537
mbed_official	5:b3b3370574cf	4538	int f_putc (
mbed_official	5:b3b3370574cf	4539	TCHAR c, /* A character to be output */
mbed_official	5:b3b3370574cf	4540	FIL* fp /* Pointer to the file object */
mbed_official	5:b3b3370574cf	4541	)
mbed_official	5:b3b3370574cf	4542	{
mbed_official	5:b3b3370574cf	4543	putbuff pb;
mbed_official	5:b3b3370574cf	4544	UINT nw;
mbed_official	5:b3b3370574cf	4545
mbed_official	5:b3b3370574cf	4546
mbed_official	5:b3b3370574cf	4547	pb.fp = fp; /* Initialize output buffer */
mbed_official	5:b3b3370574cf	4548	pb.nchr = pb.idx = 0;
mbed_official	5:b3b3370574cf	4549
mbed_official	5:b3b3370574cf	4550	putc_bfd(&pb, c); /* Put a character */
mbed_official	5:b3b3370574cf	4551
mbed_official	5:b3b3370574cf	4552	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mbed_official	5:b3b3370574cf	4553	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mbed_official	5:b3b3370574cf	4554	&& (UINT)pb.idx == nw) return pb.nchr;
mbed_official	5:b3b3370574cf	4555	return EOF;
emilmont	1:46ce1e16c870	4556	}
emilmont	1:46ce1e16c870	4557
emilmont	1:46ce1e16c870	4558
emilmont	1:46ce1e16c870	4559
emilmont	1:46ce1e16c870	4560
emilmont	1:46ce1e16c870	4561	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4562	/* Put a string to the file */
emilmont	1:46ce1e16c870	4563	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4564
emilmont	1:46ce1e16c870	4565	int f_puts (
mbed_official	5:b3b3370574cf	4566	const TCHAR* str, /* Pointer to the string to be output */
mbed_official	5:b3b3370574cf	4567	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	4568	)
emilmont	1:46ce1e16c870	4569	{
mbed_official	5:b3b3370574cf	4570	putbuff pb;
mbed_official	5:b3b3370574cf	4571	UINT nw;
mbed_official	5:b3b3370574cf	4572
mbed_official	5:b3b3370574cf	4573
mbed_official	5:b3b3370574cf	4574	pb.fp = fp; /* Initialize output buffer */
mbed_official	5:b3b3370574cf	4575	pb.nchr = pb.idx = 0;
mbed_official	5:b3b3370574cf	4576
mbed_official	5:b3b3370574cf	4577	while (str) / Put the string */
mbed_official	5:b3b3370574cf	4578	putc_bfd(&pb, *str++);
mbed_official	5:b3b3370574cf	4579
mbed_official	5:b3b3370574cf	4580	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mbed_official	5:b3b3370574cf	4581	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mbed_official	5:b3b3370574cf	4582	&& (UINT)pb.idx == nw) return pb.nchr;
mbed_official	5:b3b3370574cf	4583	return EOF;
emilmont	1:46ce1e16c870	4584	}
emilmont	1:46ce1e16c870	4585
emilmont	1:46ce1e16c870	4586
emilmont	1:46ce1e16c870	4587
emilmont	1:46ce1e16c870	4588
emilmont	1:46ce1e16c870	4589	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4590	/* Put a formatted string to the file */
emilmont	1:46ce1e16c870	4591	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4592
emilmont	1:46ce1e16c870	4593	int f_printf (
mbed_official	5:b3b3370574cf	4594	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	4595	const TCHAR* fmt, /* Pointer to the format string */
mbed_official	5:b3b3370574cf	4596	... /* Optional arguments... */
emilmont	1:46ce1e16c870	4597	)
emilmont	1:46ce1e16c870	4598	{
mbed_official	5:b3b3370574cf	4599	va_list arp;
mbed_official	5:b3b3370574cf	4600	BYTE f, r;
mbed_official	5:b3b3370574cf	4601	UINT nw, i, j, w;
mbed_official	5:b3b3370574cf	4602	DWORD v;
mbed_official	5:b3b3370574cf	4603	TCHAR c, d, s[16], *p;
mbed_official	5:b3b3370574cf	4604	putbuff pb;
mbed_official	5:b3b3370574cf	4605
mbed_official	5:b3b3370574cf	4606
mbed_official	5:b3b3370574cf	4607	pb.fp = fp; /* Initialize output buffer */
mbed_official	5:b3b3370574cf	4608	pb.nchr = pb.idx = 0;
mbed_official	5:b3b3370574cf	4609
mbed_official	5:b3b3370574cf	4610	va_start(arp, fmt);
mbed_official	5:b3b3370574cf	4611
mbed_official	5:b3b3370574cf	4612	for (;;) {
mbed_official	5:b3b3370574cf	4613	c = *fmt++;
mbed_official	5:b3b3370574cf	4614	if (c == 0) break; /* End of string */
mbed_official	5:b3b3370574cf	4615	if (c != '%') { /* Non escape character */
mbed_official	5:b3b3370574cf	4616	putc_bfd(&pb, c);
mbed_official	5:b3b3370574cf	4617	continue;
mbed_official	5:b3b3370574cf	4618	}
mbed_official	5:b3b3370574cf	4619	w = f = 0;
mbed_official	5:b3b3370574cf	4620	c = *fmt++;
mbed_official	5:b3b3370574cf	4621	if (c == '0') { /* Flag: '0' padding */
mbed_official	5:b3b3370574cf	4622	f = 1; c = *fmt++;
mbed_official	5:b3b3370574cf	4623	} else {
mbed_official	5:b3b3370574cf	4624	if (c == '-') { /* Flag: left justified */
mbed_official	5:b3b3370574cf	4625	f = 2; c = *fmt++;
mbed_official	5:b3b3370574cf	4626	}
mbed_official	5:b3b3370574cf	4627	}
mbed_official	5:b3b3370574cf	4628	while (IsDigit(c)) { /* Precision */
mbed_official	5:b3b3370574cf	4629	w = w * 10 + c - '0';
mbed_official	5:b3b3370574cf	4630	c = *fmt++;
mbed_official	5:b3b3370574cf	4631	}
mbed_official	5:b3b3370574cf	4632	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
mbed_official	5:b3b3370574cf	4633	f \|= 4; c = *fmt++;
mbed_official	5:b3b3370574cf	4634	}
mbed_official	5:b3b3370574cf	4635	if (!c) break;
mbed_official	5:b3b3370574cf	4636	d = c;
mbed_official	5:b3b3370574cf	4637	if (IsLower(d)) d -= 0x20;
mbed_official	5:b3b3370574cf	4638	switch (d) { /* Type is... */
mbed_official	5:b3b3370574cf	4639	case 'S' : /* String */
mbed_official	5:b3b3370574cf	4640	p = va_arg(arp, TCHAR*);
mbed_official	5:b3b3370574cf	4641	for (j = 0; p[j]; j++) ;
mbed_official	5:b3b3370574cf	4642	if (!(f & 2)) {
mbed_official	5:b3b3370574cf	4643	while (j++ < w) putc_bfd(&pb, ' ');
mbed_official	5:b3b3370574cf	4644	}
mbed_official	5:b3b3370574cf	4645	while (p) putc_bfd(&pb, p++);
mbed_official	5:b3b3370574cf	4646	while (j++ < w) putc_bfd(&pb, ' ');
mbed_official	5:b3b3370574cf	4647	continue;
mbed_official	5:b3b3370574cf	4648	case 'C' : /* Character */
mbed_official	5:b3b3370574cf	4649	putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue;
mbed_official	5:b3b3370574cf	4650	case 'B' : /* Binary */
mbed_official	5:b3b3370574cf	4651	r = 2; break;
mbed_official	5:b3b3370574cf	4652	case 'O' : /* Octal */
mbed_official	5:b3b3370574cf	4653	r = 8; break;
mbed_official	5:b3b3370574cf	4654	case 'D' : /* Signed decimal */
mbed_official	5:b3b3370574cf	4655	case 'U' : /* Unsigned decimal */
mbed_official	5:b3b3370574cf	4656	r = 10; break;
mbed_official	5:b3b3370574cf	4657	case 'X' : /* Hexdecimal */
mbed_official	5:b3b3370574cf	4658	r = 16; break;
mbed_official	5:b3b3370574cf	4659	default: /* Unknown type (pass-through) */
mbed_official	5:b3b3370574cf	4660	putc_bfd(&pb, c); continue;
mbed_official	5:b3b3370574cf	4661	}
mbed_official	5:b3b3370574cf	4662
mbed_official	5:b3b3370574cf	4663	/* Get an argument and put it in numeral */
mbed_official	5:b3b3370574cf	4664	v = (f & 4) ? (DWORD)va_arg(arp, long) : ((d == 'D') ? (DWORD)(long)va_arg(arp, int) : (DWORD)va_arg(arp, unsigned int));
mbed_official	5:b3b3370574cf	4665	if (d == 'D' && (v & 0x80000000)) {
mbed_official	5:b3b3370574cf	4666	v = 0 - v;
mbed_official	5:b3b3370574cf	4667	f \|= 8;
mbed_official	5:b3b3370574cf	4668	}
mbed_official	5:b3b3370574cf	4669	i = 0;
mbed_official	5:b3b3370574cf	4670	do {
mbed_official	5:b3b3370574cf	4671	d = (TCHAR)(v % r); v /= r;
mbed_official	5:b3b3370574cf	4672	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
mbed_official	5:b3b3370574cf	4673	s[i++] = d + '0';
mbed_official	5:b3b3370574cf	4674	} while (v && i < sizeof s / sizeof s[0]);
mbed_official	5:b3b3370574cf	4675	if (f & 8) s[i++] = '-';
mbed_official	5:b3b3370574cf	4676	j = i; d = (f & 1) ? '0' : ' ';
mbed_official	5:b3b3370574cf	4677	while (!(f & 2) && j++ < w) putc_bfd(&pb, d);
mbed_official	5:b3b3370574cf	4678	do putc_bfd(&pb, s[--i]); while (i);
mbed_official	5:b3b3370574cf	4679	while (j++ < w) putc_bfd(&pb, d);
mbed_official	5:b3b3370574cf	4680	}
mbed_official	5:b3b3370574cf	4681
mbed_official	5:b3b3370574cf	4682	va_end(arp);
mbed_official	5:b3b3370574cf	4683
mbed_official	5:b3b3370574cf	4684	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mbed_official	5:b3b3370574cf	4685	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mbed_official	5:b3b3370574cf	4686	&& (UINT)pb.idx == nw) return pb.nchr;
mbed_official	5:b3b3370574cf	4687	return EOF;
emilmont	1:46ce1e16c870	4688	}
emilmont	1:46ce1e16c870	4689
emilmont	1:46ce1e16c870	4690	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	4691	#endif /* _USE_STRFUNC */

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Type:	Library
Created:	11 Feb 2014
Imports:	1297
Forks:	17
Commits:	11
Dependents:	181
Dependencies:	0
Followers:	34

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Mac Lobdell

The code in this repository is Apache licensed.

ChaN/ff.cpp@10:28e685e5ff7f, 2017-07-10 (annotated)

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