FATFileSystem - microCD

Users » vnemera » Code » FATFileSystem

microCD

Fork of FATFileSystem by mbed official

ChaN/ff.cpp@8:0345cdc7efa5, 2017-02-17 (annotated)

Committer:: vnemera
Date:: Fri Feb 17 16:43:26 2017 +0000
Revision:: 8:0345cdc7efa5
Parent:: 6:a5fcdbf92056

1.4.4

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	/----------------------------------------------------------------------------*/
vnemera	8:0345cdc7efa5	17	#include "mbed.h"
vnemera	8:0345cdc7efa5	18	#include "mbed_debug.h"
vnemera	8:0345cdc7efa5	19	//#include "myDebug.h"
mbed_official	5:b3b3370574cf	20
mbed_official	5:b3b3370574cf	21	#include "ff.h" /* Declarations of FatFs API */
mbed_official	5:b3b3370574cf	22	#include "diskio.h" /* Declarations of disk I/O functions */
emilmont	1:46ce1e16c870	23
emilmont	1:46ce1e16c870	24	/*--------------------------------------------------------------------------
emilmont	1:46ce1e16c870	25
emilmont	1:46ce1e16c870	26	Module Private Definitions
emilmont	1:46ce1e16c870	27
emilmont	1:46ce1e16c870	28	---------------------------------------------------------------------------*/
emilmont	1:46ce1e16c870	29
mbed_official	6:a5fcdbf92056	30	#if _FATFS != 64180 /* Revision ID */
emilmont	1:46ce1e16c870	31	#error Wrong include file (ff.h).
emilmont	1:46ce1e16c870	32	#endif
emilmont	1:46ce1e16c870	33
emilmont	1:46ce1e16c870	34
emilmont	1:46ce1e16c870	35	/* Reentrancy related */
emilmont	1:46ce1e16c870	36	#if _FS_REENTRANT
emilmont	1:46ce1e16c870	37	#if _USE_LFN == 1
mbed_official	5:b3b3370574cf	38	#error Static LFN work area cannot be used at thread-safe configuration
emilmont	1:46ce1e16c870	39	#endif
mbed_official	5:b3b3370574cf	40	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
mbed_official	5:b3b3370574cf	41	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
emilmont	1:46ce1e16c870	42	#else
mbed_official	5:b3b3370574cf	43	#define ENTER_FF(fs)
mbed_official	5:b3b3370574cf	44	#define LEAVE_FF(fs, res) return res
mbed_official	5:b3b3370574cf	45	#endif
mbed_official	5:b3b3370574cf	46
mbed_official	5:b3b3370574cf	47	#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }
mbed_official	5:b3b3370574cf	48
mbed_official	5:b3b3370574cf	49
mbed_official	5:b3b3370574cf	50	/* Definitions of sector size */
mbed_official	5:b3b3370574cf	51	#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	52	#error Wrong sector size configuration
emilmont	1:46ce1e16c870	53	#endif
mbed_official	5:b3b3370574cf	54	#if _MAX_SS == _MIN_SS
mbed_official	5:b3b3370574cf	55	#define SS(fs) ((UINT)_MAX_SS) /* Fixed sector size */
mbed_official	5:b3b3370574cf	56	#else
mbed_official	5:b3b3370574cf	57	#define SS(fs) ((fs)->ssize) /* Variable sector size */
mbed_official	5:b3b3370574cf	58	#endif
mbed_official	5:b3b3370574cf	59
mbed_official	5:b3b3370574cf	60
mbed_official	5:b3b3370574cf	61	/* Timestamp feature */
mbed_official	5:b3b3370574cf	62	#if _FS_NORTC == 1
mbed_official	5:b3b3370574cf	63	#if _NORTC_YEAR < 1980 \|\| _NORTC_YEAR > 2107 \|\| _NORTC_MON < 1 \|\| _NORTC_MON > 12 \|\| _NORTC_MDAY < 1 \|\| _NORTC_MDAY > 31
mbed_official	5:b3b3370574cf	64	#error Invalid _FS_NORTC settings
mbed_official	5:b3b3370574cf	65	#endif
mbed_official	5:b3b3370574cf	66	#define GET_FATTIME() ((DWORD)(_NORTC_YEAR - 1980) << 25 \| (DWORD)_NORTC_MON << 21 \| (DWORD)_NORTC_MDAY << 16)
mbed_official	5:b3b3370574cf	67	#else
mbed_official	5:b3b3370574cf	68	#define GET_FATTIME() get_fattime()
mbed_official	5:b3b3370574cf	69	#endif
emilmont	1:46ce1e16c870	70
emilmont	1:46ce1e16c870	71
emilmont	1:46ce1e16c870	72	/* File access control feature */
emilmont	1:46ce1e16c870	73	#if _FS_LOCK
emilmont	1:46ce1e16c870	74	#if _FS_READONLY
mbed_official	5:b3b3370574cf	75	#error _FS_LOCK must be 0 at read-only configuration
emilmont	1:46ce1e16c870	76	#endif
emilmont	1:46ce1e16c870	77	typedef struct {
mbed_official	5:b3b3370574cf	78	FATFS fs; / Object ID 1, volume (NULL:blank entry) */
mbed_official	5:b3b3370574cf	79	DWORD clu; /* Object ID 2, directory (0:root) */
mbed_official	5:b3b3370574cf	80	WORD idx; /* Object ID 3, directory index */
mbed_official	5:b3b3370574cf	81	WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */
emilmont	1:46ce1e16c870	82	} FILESEM;
emilmont	1:46ce1e16c870	83	#endif
emilmont	1:46ce1e16c870	84
emilmont	1:46ce1e16c870	85
emilmont	1:46ce1e16c870	86
mbed_official	6:a5fcdbf92056	87	/* DBCS code ranges and SBCS upper conversion tables */
mbed_official	5:b3b3370574cf	88
mbed_official	5:b3b3370574cf	89	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
mbed_official	5:b3b3370574cf	90	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
mbed_official	5:b3b3370574cf	91	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
mbed_official	5:b3b3370574cf	92	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
mbed_official	5:b3b3370574cf	93	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
mbed_official	5:b3b3370574cf	94	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
mbed_official	5:b3b3370574cf	95	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
mbed_official	5:b3b3370574cf	96	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
mbed_official	5:b3b3370574cf	97	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
mbed_official	5:b3b3370574cf	98
mbed_official	5:b3b3370574cf	99	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
mbed_official	5:b3b3370574cf	100	#define _DF1S 0x81
mbed_official	5:b3b3370574cf	101	#define _DF1E 0xFE
mbed_official	5:b3b3370574cf	102	#define _DS1S 0x40
mbed_official	5:b3b3370574cf	103	#define _DS1E 0x7E
mbed_official	5:b3b3370574cf	104	#define _DS2S 0x80
mbed_official	5:b3b3370574cf	105	#define _DS2E 0xFE
mbed_official	5:b3b3370574cf	106
mbed_official	5:b3b3370574cf	107	#elif _CODE_PAGE == 949 /* Korean */
mbed_official	5:b3b3370574cf	108	#define _DF1S 0x81
mbed_official	5:b3b3370574cf	109	#define _DF1E 0xFE
mbed_official	5:b3b3370574cf	110	#define _DS1S 0x41
mbed_official	5:b3b3370574cf	111	#define _DS1E 0x5A
mbed_official	5:b3b3370574cf	112	#define _DS2S 0x61
mbed_official	5:b3b3370574cf	113	#define _DS2E 0x7A
mbed_official	5:b3b3370574cf	114	#define _DS3S 0x81
mbed_official	5:b3b3370574cf	115	#define _DS3E 0xFE
mbed_official	5:b3b3370574cf	116
mbed_official	5:b3b3370574cf	117	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
mbed_official	5:b3b3370574cf	118	#define _DF1S 0x81
mbed_official	5:b3b3370574cf	119	#define _DF1E 0xFE
mbed_official	5:b3b3370574cf	120	#define _DS1S 0x40
mbed_official	5:b3b3370574cf	121	#define _DS1E 0x7E
mbed_official	5:b3b3370574cf	122	#define _DS2S 0xA1
mbed_official	5:b3b3370574cf	123	#define _DS2E 0xFE
mbed_official	5:b3b3370574cf	124
mbed_official	6:a5fcdbf92056	125	#elif _CODE_PAGE == 437 /* U.S. */
mbed_official	5:b3b3370574cf	126	#define _DF1S 0
mbed_official	6:a5fcdbf92056	127	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	128	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	129	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	130	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	131	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	132	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	133	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	134	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	135
mbed_official	6:a5fcdbf92056	136	#elif _CODE_PAGE == 720 /* Arabic */
mbed_official	5:b3b3370574cf	137	#define _DF1S 0
mbed_official	6:a5fcdbf92056	138	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	139	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	140	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	141	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	142	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	143	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	144	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	145	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	146
mbed_official	6:a5fcdbf92056	147	#elif _CODE_PAGE == 737 /* Greek */
mbed_official	5:b3b3370574cf	148	#define _DF1S 0
mbed_official	6:a5fcdbf92056	149	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	150	0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
mbed_official	6:a5fcdbf92056	151	0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96, \
mbed_official	6:a5fcdbf92056	152	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	153	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	154	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	155	0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xEF,0xF5,0xF0,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	156	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	157
mbed_official	6:a5fcdbf92056	158	#elif _CODE_PAGE == 771 /* KBL */
mbed_official	5:b3b3370574cf	159	#define _DF1S 0
mbed_official	6:a5fcdbf92056	160	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	161	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	162	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	163	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	164	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	165	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDC,0xDE,0xDE, \
mbed_official	6:a5fcdbf92056	166	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	167	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	168
mbed_official	6:a5fcdbf92056	169	#elif _CODE_PAGE == 775 /* Baltic */
mbed_official	5:b3b3370574cf	170	#define _DF1S 0
mbed_official	6:a5fcdbf92056	171	#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	172	0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	173	0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	174	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	175	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	176	0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	177	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	178	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	179
mbed_official	6:a5fcdbf92056	180	#elif _CODE_PAGE == 850 /* Latin 1 */
mbed_official	5:b3b3370574cf	181	#define _DF1S 0
mbed_official	6:a5fcdbf92056	182	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x41,0x43,0x45,0x45,0x45,0x49,0x49,0x49,0x41,0x41, \
mbed_official	6:a5fcdbf92056	183	0x45,0x92,0x92,0x4F,0x4F,0x4F,0x55,0x55,0x59,0x4F,0x55,0x4F,0x9C,0x4F,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	184	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	185	0xB0,0xB1,0xB2,0xB3,0xB4,0x41,0x41,0x41,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	186	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0x41,0x41,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	187	0xD1,0xD1,0x45,0x45,0x45,0x49,0x49,0x49,0x49,0xD9,0xDA,0xDB,0xDC,0xDD,0x49,0xDF, \
mbed_official	6:a5fcdbf92056	188	0x4F,0xE1,0x4F,0x4F,0x4F,0x4F,0xE6,0xE8,0xE8,0x55,0x55,0x55,0x59,0x59,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	189	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	190
mbed_official	6:a5fcdbf92056	191	#elif _CODE_PAGE == 852 /* Latin 2 */
mbed_official	5:b3b3370574cf	192	#define _DF1S 0
mbed_official	6:a5fcdbf92056	193	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	194	0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0xAC, \
mbed_official	6:a5fcdbf92056	195	0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	196	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
mbed_official	6:a5fcdbf92056	197	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	198	0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	199	0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF, \
mbed_official	6:a5fcdbf92056	200	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	201
mbed_official	6:a5fcdbf92056	202	#elif _CODE_PAGE == 855 /* Cyrillic */
mbed_official	5:b3b3370574cf	203	#define _DF1S 0
mbed_official	6:a5fcdbf92056	204	#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F, \
mbed_official	6:a5fcdbf92056	205	0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
mbed_official	6:a5fcdbf92056	206	0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	207	0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	208	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	209	0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
mbed_official	6:a5fcdbf92056	210	0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	211	0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	212
mbed_official	6:a5fcdbf92056	213	#elif _CODE_PAGE == 857 /* Turkish */
mbed_official	5:b3b3370574cf	214	#define _DF1S 0
mbed_official	6:a5fcdbf92056	215	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x49,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	216	0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
mbed_official	6:a5fcdbf92056	217	0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	218	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	219	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	220	0xD0,0xD1,0xD2,0xD3,0xD4,0x49,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	221	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	222	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	223
mbed_official	6:a5fcdbf92056	224	#elif _CODE_PAGE == 860 /* Portuguese */
mbed_official	5:b3b3370574cf	225	#define _DF1S 0
mbed_official	6:a5fcdbf92056	226	#define _EXCVT {0x80,0x9A,0x90,0x8F,0x8E,0x91,0x86,0x80,0x89,0x89,0x92,0x8B,0x8C,0x98,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	227	0x90,0x91,0x92,0x8C,0x99,0xA9,0x96,0x9D,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	228	0x86,0x8B,0x9F,0x96,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	229	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	230	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	231	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	232	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	233	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	234
mbed_official	6:a5fcdbf92056	235	#elif _CODE_PAGE == 861 /* Icelandic */
mbed_official	5:b3b3370574cf	236	#define _DF1S 0
mbed_official	6:a5fcdbf92056	237	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x8B,0x8B,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	238	0x90,0x92,0x92,0x4F,0x99,0x8D,0x55,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	239	0xA4,0xA5,0xA6,0xA7,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	240	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	241	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	242	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	243	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	244	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	245
mbed_official	6:a5fcdbf92056	246	#elif _CODE_PAGE == 862 /* Hebrew */
mbed_official	5:b3b3370574cf	247	#define _DF1S 0
mbed_official	6:a5fcdbf92056	248	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	249	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	250	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	251	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	252	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	253	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	254	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	255	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	256
mbed_official	6:a5fcdbf92056	257	#elif _CODE_PAGE == 863 /* Canadian-French */
mbed_official	5:b3b3370574cf	258	#define _DF1S 0
mbed_official	6:a5fcdbf92056	259	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x41,0x8F, \
mbed_official	6:a5fcdbf92056	260	0x45,0x45,0x45,0x4F,0x45,0x49,0x55,0x55,0x98,0x4F,0x55,0x9B,0x9C,0x55,0x55,0x9F, \
mbed_official	6:a5fcdbf92056	261	0xA0,0xA1,0x4F,0x55,0xA4,0xA5,0xA6,0xA7,0x49,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	262	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	263	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	264	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	265	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	266	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	267
mbed_official	6:a5fcdbf92056	268	#elif _CODE_PAGE == 864 /* Arabic */
mbed_official	5:b3b3370574cf	269	#define _DF1S 0
mbed_official	6:a5fcdbf92056	270	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	271	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	272	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	273	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	274	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	275	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	276	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	277	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	278
mbed_official	6:a5fcdbf92056	279	#elif _CODE_PAGE == 865 /* Nordic */
mbed_official	5:b3b3370574cf	280	#define _DF1S 0
mbed_official	6:a5fcdbf92056	281	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	282	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	283	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	284	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	285	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	286	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	287	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	288	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	289
mbed_official	6:a5fcdbf92056	290	#elif _CODE_PAGE == 866 /* Russian */
mbed_official	5:b3b3370574cf	291	#define _DF1S 0
mbed_official	6:a5fcdbf92056	292	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	293	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	294	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	295	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	296	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	297	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	298	0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	299	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	300
mbed_official	6:a5fcdbf92056	301	#elif _CODE_PAGE == 869 /* Greek 2 */
mbed_official	5:b3b3370574cf	302	#define _DF1S 0
mbed_official	6:a5fcdbf92056	303	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	304	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x86,0x9C,0x8D,0x8F,0x90, \
mbed_official	6:a5fcdbf92056	305	0x91,0x90,0x92,0x95,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	306	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	307	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	308	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xA4,0xA5,0xA6,0xD9,0xDA,0xDB,0xDC,0xA7,0xA8,0xDF, \
mbed_official	6:a5fcdbf92056	309	0xA9,0xAA,0xAC,0xAD,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xCF,0xCF,0xD0,0xEF, \
mbed_official	6:a5fcdbf92056	310	0xF0,0xF1,0xD1,0xD2,0xD3,0xF5,0xD4,0xF7,0xF8,0xF9,0xD5,0x96,0x95,0x98,0xFE,0xFF}
mbed_official	5:b3b3370574cf	311
mbed_official	5:b3b3370574cf	312	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
emilmont	1:46ce1e16c870	313	#if _USE_LFN
emilmont	1:46ce1e16c870	314	#error Cannot use LFN feature without valid code page.
emilmont	1:46ce1e16c870	315	#endif
mbed_official	5:b3b3370574cf	316	#define _DF1S 0
emilmont	1:46ce1e16c870	317
emilmont	1:46ce1e16c870	318	#else
emilmont	1:46ce1e16c870	319	#error Unknown code page
emilmont	1:46ce1e16c870	320
emilmont	1:46ce1e16c870	321	#endif
emilmont	1:46ce1e16c870	322
emilmont	1:46ce1e16c870	323
emilmont	1:46ce1e16c870	324	/* Character code support macros */
mbed_official	5:b3b3370574cf	325	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
mbed_official	5:b3b3370574cf	326	#define IsLower(c) (((c)>='a')&&((c)<='z'))
mbed_official	5:b3b3370574cf	327	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
mbed_official	5:b3b3370574cf	328
mbed_official	5:b3b3370574cf	329	#if _DF1S /* Code page is DBCS */
mbed_official	5:b3b3370574cf	330
mbed_official	5:b3b3370574cf	331	#ifdef _DF2S /* Two 1st byte areas */
mbed_official	5:b3b3370574cf	332	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
mbed_official	5:b3b3370574cf	333	#else /* One 1st byte area */
mbed_official	5:b3b3370574cf	334	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
emilmont	1:46ce1e16c870	335	#endif
emilmont	1:46ce1e16c870	336
mbed_official	5:b3b3370574cf	337	#ifdef _DS3S /* Three 2nd byte areas */
mbed_official	5:b3b3370574cf	338	#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	339	#else /* Two 2nd byte areas */
mbed_official	5:b3b3370574cf	340	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
emilmont	1:46ce1e16c870	341	#endif
emilmont	1:46ce1e16c870	342
mbed_official	5:b3b3370574cf	343	#else /* Code page is SBCS */
mbed_official	5:b3b3370574cf	344
mbed_official	5:b3b3370574cf	345	#define IsDBCS1(c) 0
mbed_official	5:b3b3370574cf	346	#define IsDBCS2(c) 0
emilmont	1:46ce1e16c870	347
emilmont	1:46ce1e16c870	348	#endif /* _DF1S */
emilmont	1:46ce1e16c870	349
emilmont	1:46ce1e16c870	350
emilmont	1:46ce1e16c870	351	/* Name status flags */
mbed_official	5:b3b3370574cf	352	#define NSFLAG 11 /* Index of name status byte in fn[] */
mbed_official	5:b3b3370574cf	353	#define NS_LOSS 0x01 /* Out of 8.3 format */
mbed_official	5:b3b3370574cf	354	#define NS_LFN 0x02 /* Force to create LFN entry */
mbed_official	5:b3b3370574cf	355	#define NS_LAST 0x04 /* Last segment */
mbed_official	5:b3b3370574cf	356	#define NS_BODY 0x08 /* Lower case flag (body) */
mbed_official	5:b3b3370574cf	357	#define NS_EXT 0x10 /* Lower case flag (ext) */
mbed_official	5:b3b3370574cf	358	#define NS_DOT 0x20 /* Dot entry */
mbed_official	5:b3b3370574cf	359
mbed_official	5:b3b3370574cf	360
mbed_official	5:b3b3370574cf	361	/* FAT sub-type boundaries (Differ from specs but correct for real DOS/Windows) */
mbed_official	6:a5fcdbf92056	362	#define MIN_FAT16 4086U /* Minimum number of clusters of FAT16 */
mbed_official	6:a5fcdbf92056	363	#define MIN_FAT32 65526U /* Minimum number of clusters of FAT32 */
emilmont	1:46ce1e16c870	364
emilmont	1:46ce1e16c870	365
emilmont	1:46ce1e16c870	366	/* FatFs refers the members in the FAT structures as byte array instead of
mbed_official	6:a5fcdbf92056	367	/ structure members because the structure is not binary compatible between
emilmont	1:46ce1e16c870	368	/ different platforms */
emilmont	1:46ce1e16c870	369
mbed_official	5:b3b3370574cf	370	#define BS_jmpBoot 0 /* x86 jump instruction (3) */
mbed_official	5:b3b3370574cf	371	#define BS_OEMName 3 /* OEM name (8) */
mbed_official	5:b3b3370574cf	372	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
mbed_official	5:b3b3370574cf	373	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
mbed_official	5:b3b3370574cf	374	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
mbed_official	5:b3b3370574cf	375	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
mbed_official	5:b3b3370574cf	376	#define BPB_RootEntCnt 17 /* Number of root directory entries for FAT12/16 (2) */
mbed_official	5:b3b3370574cf	377	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
mbed_official	5:b3b3370574cf	378	#define BPB_Media 21 /* Media descriptor (1) */
mbed_official	5:b3b3370574cf	379	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
mbed_official	5:b3b3370574cf	380	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
mbed_official	5:b3b3370574cf	381	#define BPB_NumHeads 26 /* Number of heads (2) */
mbed_official	5:b3b3370574cf	382	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
mbed_official	5:b3b3370574cf	383	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
mbed_official	6:a5fcdbf92056	384	#define BS_DrvNum 36 /* Physical drive number (1) */
mbed_official	6:a5fcdbf92056	385	#define BS_NTres 37 /* Error flag (1) */
mbed_official	5:b3b3370574cf	386	#define BS_BootSig 38 /* Extended boot signature (1) */
mbed_official	5:b3b3370574cf	387	#define BS_VolID 39 /* Volume serial number (4) */
mbed_official	5:b3b3370574cf	388	#define BS_VolLab 43 /* Volume label (8) */
mbed_official	5:b3b3370574cf	389	#define BS_FilSysType 54 /* File system type (1) */
mbed_official	5:b3b3370574cf	390	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
mbed_official	5:b3b3370574cf	391	#define BPB_ExtFlags 40 /* Extended flags (2) */
mbed_official	5:b3b3370574cf	392	#define BPB_FSVer 42 /* File system version (2) */
mbed_official	5:b3b3370574cf	393	#define BPB_RootClus 44 /* Root directory first cluster (4) */
mbed_official	5:b3b3370574cf	394	#define BPB_FSInfo 48 /* Offset of FSINFO sector (2) */
mbed_official	5:b3b3370574cf	395	#define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
mbed_official	6:a5fcdbf92056	396	#define BS_DrvNum32 64 /* Physical drive number (1) */
mbed_official	6:a5fcdbf92056	397	#define BS_NTres32 65 /* Error flag (1) */
mbed_official	5:b3b3370574cf	398	#define BS_BootSig32 66 /* Extended boot signature (1) */
mbed_official	5:b3b3370574cf	399	#define BS_VolID32 67 /* Volume serial number (4) */
mbed_official	5:b3b3370574cf	400	#define BS_VolLab32 71 /* Volume label (8) */
mbed_official	5:b3b3370574cf	401	#define BS_FilSysType32 82 /* File system type (1) */
mbed_official	5:b3b3370574cf	402	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
mbed_official	5:b3b3370574cf	403	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
mbed_official	5:b3b3370574cf	404	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
mbed_official	5:b3b3370574cf	405	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
mbed_official	5:b3b3370574cf	406	#define MBR_Table 446 /* MBR: Partition table offset (2) */
mbed_official	5:b3b3370574cf	407	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
mbed_official	5:b3b3370574cf	408	#define BS_55AA 510 /* Signature word (2) */
mbed_official	5:b3b3370574cf	409
mbed_official	5:b3b3370574cf	410	#define DIR_Name 0 /* Short file name (11) */
mbed_official	5:b3b3370574cf	411	#define DIR_Attr 11 /* Attribute (1) */
mbed_official	5:b3b3370574cf	412	#define DIR_NTres 12 /* Lower case flag (1) */
mbed_official	5:b3b3370574cf	413	#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
mbed_official	5:b3b3370574cf	414	#define DIR_CrtTime 14 /* Created time (2) */
mbed_official	5:b3b3370574cf	415	#define DIR_CrtDate 16 /* Created date (2) */
mbed_official	5:b3b3370574cf	416	#define DIR_LstAccDate 18 /* Last accessed date (2) */
mbed_official	5:b3b3370574cf	417	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
mbed_official	5:b3b3370574cf	418	#define DIR_WrtTime 22 /* Modified time (2) */
mbed_official	5:b3b3370574cf	419	#define DIR_WrtDate 24 /* Modified date (2) */
mbed_official	5:b3b3370574cf	420	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
mbed_official	5:b3b3370574cf	421	#define DIR_FileSize 28 /* File size (4) */
mbed_official	5:b3b3370574cf	422	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
mbed_official	5:b3b3370574cf	423	#define LDIR_Attr 11 /* LFN attribute (1) */
mbed_official	5:b3b3370574cf	424	#define LDIR_Type 12 /* LFN type (1) */
mbed_official	6:a5fcdbf92056	425	#define LDIR_Chksum 13 /* Checksum of corresponding SFN entry */
mbed_official	5:b3b3370574cf	426	#define LDIR_FstClusLO 26 /* Must be zero (0) */
mbed_official	5:b3b3370574cf	427	#define SZ_DIRE 32 /* Size of a directory entry */
mbed_official	5:b3b3370574cf	428	#define LLEF 0x40 /* Last long entry flag in LDIR_Ord */
mbed_official	5:b3b3370574cf	429	#define DDEM 0xE5 /* Deleted directory entry mark at DIR_Name[0] */
mbed_official	5:b3b3370574cf	430	#define RDDEM 0x05 /* Replacement of the character collides with DDEM */
mbed_official	5:b3b3370574cf	431
mbed_official	5:b3b3370574cf	432
emilmont	1:46ce1e16c870	433
emilmont	1:46ce1e16c870	434
mbed_official	6:a5fcdbf92056	435	/*--------------------------------------------------------------------------
mbed_official	6:a5fcdbf92056	436
mbed_official	6:a5fcdbf92056	437	Module Private Work Area
mbed_official	6:a5fcdbf92056	438
mbed_official	6:a5fcdbf92056	439	---------------------------------------------------------------------------*/
mbed_official	6:a5fcdbf92056	440
mbed_official	6:a5fcdbf92056	441	/* Remark: Uninitialized variables with static duration are guaranteed
mbed_official	6:a5fcdbf92056	442	/ zero/null at start-up. If not, either the linker or start-up routine
mbed_official	6:a5fcdbf92056	443	/ being used is not compliance with ANSI-C standard.
emilmont	1:46ce1e16c870	444	*/
emilmont	1:46ce1e16c870	445
mbed_official	5:b3b3370574cf	446	#if _VOLUMES < 1 \|\| _VOLUMES > 9
mbed_official	5:b3b3370574cf	447	#error Wrong _VOLUMES setting
emilmont	1:46ce1e16c870	448	#endif
mbed_official	5:b3b3370574cf	449	static FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
mbed_official	5:b3b3370574cf	450	static WORD Fsid; /* File system mount ID */
mbed_official	5:b3b3370574cf	451
mbed_official	5:b3b3370574cf	452	#if _FS_RPATH && _VOLUMES >= 2
mbed_official	5:b3b3370574cf	453	static BYTE CurrVol; /* Current drive */
emilmont	1:46ce1e16c870	454	#endif
emilmont	1:46ce1e16c870	455
emilmont	1:46ce1e16c870	456	#if _FS_LOCK
mbed_official	5:b3b3370574cf	457	static FILESEM Files[_FS_LOCK]; /* Open object lock semaphores */
mbed_official	5:b3b3370574cf	458	#endif
mbed_official	5:b3b3370574cf	459
mbed_official	5:b3b3370574cf	460	#if _USE_LFN == 0 /* Non LFN feature */
mbed_official	5:b3b3370574cf	461	#define DEFINE_NAMEBUF BYTE sfn[12]
mbed_official	5:b3b3370574cf	462	#define INIT_BUF(dobj) (dobj).fn = sfn
mbed_official	5:b3b3370574cf	463	#define FREE_BUF()
mbed_official	5:b3b3370574cf	464	#else
mbed_official	5:b3b3370574cf	465	#if _MAX_LFN < 12 \|\| _MAX_LFN > 255
mbed_official	5:b3b3370574cf	466	#error Wrong _MAX_LFN setting
emilmont	1:46ce1e16c870	467	#endif
mbed_official	5:b3b3370574cf	468	#if _USE_LFN == 1 /* LFN feature with static working buffer */
mbed_official	5:b3b3370574cf	469	static WCHAR LfnBuf[_MAX_LFN + 1];
mbed_official	5:b3b3370574cf	470	#define DEFINE_NAMEBUF BYTE sfn[12]
mbed_official	5:b3b3370574cf	471	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
mbed_official	5:b3b3370574cf	472	#define FREE_BUF()
mbed_official	5:b3b3370574cf	473	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
mbed_official	5:b3b3370574cf	474	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN + 1]
mbed_official	5:b3b3370574cf	475	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
mbed_official	5:b3b3370574cf	476	#define FREE_BUF()
mbed_official	5:b3b3370574cf	477	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
mbed_official	5:b3b3370574cf	478	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR *lfn
mbed_official	5:b3b3370574cf	479	#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	480	#define FREE_BUF() ff_memfree(lfn)
emilmont	1:46ce1e16c870	481	#else
mbed_official	5:b3b3370574cf	482	#error Wrong _USE_LFN setting
mbed_official	5:b3b3370574cf	483	#endif
emilmont	1:46ce1e16c870	484	#endif
emilmont	1:46ce1e16c870	485
mbed_official	5:b3b3370574cf	486	#ifdef _EXCVT
mbed_official	6:a5fcdbf92056	487	static const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for SBCS extended characters */
mbed_official	5:b3b3370574cf	488	#endif
mbed_official	5:b3b3370574cf	489
mbed_official	5:b3b3370574cf	490
mbed_official	5:b3b3370574cf	491
emilmont	1:46ce1e16c870	492
emilmont	1:46ce1e16c870	493
emilmont	1:46ce1e16c870	494
emilmont	1:46ce1e16c870	495	/*--------------------------------------------------------------------------
emilmont	1:46ce1e16c870	496
emilmont	1:46ce1e16c870	497	Module Private Functions
emilmont	1:46ce1e16c870	498
emilmont	1:46ce1e16c870	499	---------------------------------------------------------------------------*/
emilmont	1:46ce1e16c870	500
emilmont	1:46ce1e16c870	501
emilmont	1:46ce1e16c870	502	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	503	/* String functions */
emilmont	1:46ce1e16c870	504	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	505
emilmont	1:46ce1e16c870	506	/* Copy memory to memory */
emilmont	1:46ce1e16c870	507	static
mbed_official	4:3ff2606d5713	508	void mem_cpy (void* dst, const void* src, UINT cnt) {
mbed_official	5:b3b3370574cf	509	BYTE d = (BYTE)dst;
mbed_official	5:b3b3370574cf	510	const BYTE s = (const BYTE)src;
emilmont	1:46ce1e16c870	511
emilmont	1:46ce1e16c870	512	#if _WORD_ACCESS == 1
mbed_official	5:b3b3370574cf	513	while (cnt >= sizeof (int)) {
mbed_official	5:b3b3370574cf	514	(int)d = (int)s;
mbed_official	5:b3b3370574cf	515	d += sizeof (int); s += sizeof (int);
mbed_official	5:b3b3370574cf	516	cnt -= sizeof (int);
mbed_official	5:b3b3370574cf	517	}
emilmont	1:46ce1e16c870	518	#endif
mbed_official	5:b3b3370574cf	519	while (cnt--)
mbed_official	5:b3b3370574cf	520	d++ = s++;
emilmont	1:46ce1e16c870	521	}
emilmont	1:46ce1e16c870	522
emilmont	1:46ce1e16c870	523	/* Fill memory */
emilmont	1:46ce1e16c870	524	static
mbed_official	4:3ff2606d5713	525	void mem_set (void* dst, int val, UINT cnt) {
mbed_official	5:b3b3370574cf	526	BYTE d = (BYTE)dst;
mbed_official	5:b3b3370574cf	527
mbed_official	5:b3b3370574cf	528	while (cnt--)
mbed_official	5:b3b3370574cf	529	*d++ = (BYTE)val;
emilmont	1:46ce1e16c870	530	}
emilmont	1:46ce1e16c870	531
emilmont	1:46ce1e16c870	532	/* Compare memory to memory */
emilmont	1:46ce1e16c870	533	static
mbed_official	4:3ff2606d5713	534	int mem_cmp (const void* dst, const void* src, UINT cnt) {
mbed_official	5:b3b3370574cf	535	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
mbed_official	5:b3b3370574cf	536	int r = 0;
mbed_official	5:b3b3370574cf	537
mbed_official	5:b3b3370574cf	538	while (cnt-- && (r = d++ - s++) == 0) ;
mbed_official	5:b3b3370574cf	539	return r;
emilmont	1:46ce1e16c870	540	}
emilmont	1:46ce1e16c870	541
emilmont	1:46ce1e16c870	542	/* Check if chr is contained in the string */
emilmont	1:46ce1e16c870	543	static
mbed_official	4:3ff2606d5713	544	int chk_chr (const char* str, int chr) {
mbed_official	5:b3b3370574cf	545	while (str && str != chr) str++;
mbed_official	5:b3b3370574cf	546	return *str;
emilmont	1:46ce1e16c870	547	}
emilmont	1:46ce1e16c870	548
emilmont	1:46ce1e16c870	549
emilmont	1:46ce1e16c870	550
mbed_official	5:b3b3370574cf	551
emilmont	1:46ce1e16c870	552	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	553	/* Request/Release grant to access the volume */
emilmont	1:46ce1e16c870	554	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	555	#if _FS_REENTRANT
emilmont	1:46ce1e16c870	556	static
emilmont	1:46ce1e16c870	557	int lock_fs (
mbed_official	5:b3b3370574cf	558	FATFS* fs /* File system object */
emilmont	1:46ce1e16c870	559	)
emilmont	1:46ce1e16c870	560	{
mbed_official	5:b3b3370574cf	561	return ff_req_grant(fs->sobj);
emilmont	1:46ce1e16c870	562	}
emilmont	1:46ce1e16c870	563
emilmont	1:46ce1e16c870	564
emilmont	1:46ce1e16c870	565	static
emilmont	1:46ce1e16c870	566	void unlock_fs (
mbed_official	5:b3b3370574cf	567	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	568	FRESULT res /* Result code to be returned */
emilmont	1:46ce1e16c870	569	)
emilmont	1:46ce1e16c870	570	{
mbed_official	5:b3b3370574cf	571	if (fs &&
mbed_official	5:b3b3370574cf	572	res != FR_NOT_ENABLED &&
mbed_official	5:b3b3370574cf	573	res != FR_INVALID_DRIVE &&
mbed_official	5:b3b3370574cf	574	res != FR_INVALID_OBJECT &&
mbed_official	5:b3b3370574cf	575	res != FR_TIMEOUT) {
mbed_official	5:b3b3370574cf	576	ff_rel_grant(fs->sobj);
mbed_official	5:b3b3370574cf	577	}
emilmont	1:46ce1e16c870	578	}
emilmont	1:46ce1e16c870	579	#endif
emilmont	1:46ce1e16c870	580
emilmont	1:46ce1e16c870	581
emilmont	1:46ce1e16c870	582
mbed_official	5:b3b3370574cf	583
emilmont	1:46ce1e16c870	584	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	585	/* File lock control functions */
emilmont	1:46ce1e16c870	586	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	587	#if _FS_LOCK
emilmont	1:46ce1e16c870	588
emilmont	1:46ce1e16c870	589	static
mbed_official	5:b3b3370574cf	590	FRESULT chk_lock ( /* Check if the file can be accessed */
mbed_official	5:b3b3370574cf	591	FATFS_DIR* dp, /* Directory object pointing the file to be checked */
mbed_official	5:b3b3370574cf	592	int acc /* Desired access type (0:Read, 1:Write, 2:Delete/Rename) */
emilmont	1:46ce1e16c870	593	)
emilmont	1:46ce1e16c870	594	{
mbed_official	5:b3b3370574cf	595	UINT i, be;
mbed_official	5:b3b3370574cf	596
mbed_official	5:b3b3370574cf	597	/* Search file semaphore table */
mbed_official	5:b3b3370574cf	598	for (i = be = 0; i < _FS_LOCK; i++) {
mbed_official	5:b3b3370574cf	599	if (Files[i].fs) { /* Existing entry */
mbed_official	5:b3b3370574cf	600	if (Files[i].fs == dp->fs && /* Check if the object matched with an open object */
mbed_official	5:b3b3370574cf	601	Files[i].clu == dp->sclust &&
mbed_official	5:b3b3370574cf	602	Files[i].idx == dp->index) break;
mbed_official	5:b3b3370574cf	603	} else { /* Blank entry */
mbed_official	5:b3b3370574cf	604	be = 1;
mbed_official	5:b3b3370574cf	605	}
mbed_official	5:b3b3370574cf	606	}
mbed_official	5:b3b3370574cf	607	if (i == _FS_LOCK) /* The object is not opened */
mbed_official	5:b3b3370574cf	608	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new object? */
mbed_official	5:b3b3370574cf	609
mbed_official	5:b3b3370574cf	610	/* The object has been opened. Reject any open against writing file and all write mode open */
mbed_official	5:b3b3370574cf	611	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
emilmont	1:46ce1e16c870	612	}
emilmont	1:46ce1e16c870	613
emilmont	1:46ce1e16c870	614
emilmont	1:46ce1e16c870	615	static
mbed_official	5:b3b3370574cf	616	int enq_lock (void) /* Check if an entry is available for a new object */
emilmont	1:46ce1e16c870	617	{
mbed_official	5:b3b3370574cf	618	UINT i;
mbed_official	5:b3b3370574cf	619
mbed_official	5:b3b3370574cf	620	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mbed_official	5:b3b3370574cf	621	return (i == _FS_LOCK) ? 0 : 1;
emilmont	1:46ce1e16c870	622	}
emilmont	1:46ce1e16c870	623
emilmont	1:46ce1e16c870	624
emilmont	1:46ce1e16c870	625	static
mbed_official	5:b3b3370574cf	626	UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */
mbed_official	5:b3b3370574cf	627	FATFS_DIR* dp, /* Directory object pointing the file to register or increment */
mbed_official	5:b3b3370574cf	628	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
emilmont	1:46ce1e16c870	629	)
emilmont	1:46ce1e16c870	630	{
mbed_official	5:b3b3370574cf	631	UINT i;
mbed_official	5:b3b3370574cf	632
mbed_official	5:b3b3370574cf	633
mbed_official	5:b3b3370574cf	634	for (i = 0; i < _FS_LOCK; i++) { /* Find the object */
mbed_official	5:b3b3370574cf	635	if (Files[i].fs == dp->fs &&
mbed_official	5:b3b3370574cf	636	Files[i].clu == dp->sclust &&
mbed_official	5:b3b3370574cf	637	Files[i].idx == dp->index) break;
mbed_official	5:b3b3370574cf	638	}
mbed_official	5:b3b3370574cf	639
mbed_official	5:b3b3370574cf	640	if (i == _FS_LOCK) { /* Not opened. Register it as new. */
mbed_official	5:b3b3370574cf	641	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mbed_official	5:b3b3370574cf	642	if (i == _FS_LOCK) return 0; /* No free entry to register (int err) */
mbed_official	5:b3b3370574cf	643	Files[i].fs = dp->fs;
mbed_official	5:b3b3370574cf	644	Files[i].clu = dp->sclust;
mbed_official	5:b3b3370574cf	645	Files[i].idx = dp->index;
mbed_official	5:b3b3370574cf	646	Files[i].ctr = 0;
mbed_official	5:b3b3370574cf	647	}
mbed_official	5:b3b3370574cf	648
mbed_official	5:b3b3370574cf	649	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
mbed_official	5:b3b3370574cf	650
mbed_official	5:b3b3370574cf	651	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
mbed_official	5:b3b3370574cf	652
mbed_official	5:b3b3370574cf	653	return i + 1;
emilmont	1:46ce1e16c870	654	}
emilmont	1:46ce1e16c870	655
emilmont	1:46ce1e16c870	656
emilmont	1:46ce1e16c870	657	static
mbed_official	5:b3b3370574cf	658	FRESULT dec_lock ( /* Decrement object open counter */
mbed_official	5:b3b3370574cf	659	UINT i /* Semaphore index (1..) */
emilmont	1:46ce1e16c870	660	)
emilmont	1:46ce1e16c870	661	{
mbed_official	5:b3b3370574cf	662	WORD n;
mbed_official	5:b3b3370574cf	663	FRESULT res;
mbed_official	5:b3b3370574cf	664
mbed_official	5:b3b3370574cf	665
mbed_official	5:b3b3370574cf	666	if (--i < _FS_LOCK) { /* Shift index number origin from 0 */
mbed_official	5:b3b3370574cf	667	n = Files[i].ctr;
mbed_official	5:b3b3370574cf	668	if (n == 0x100) n = 0; /* If write mode open, delete the entry */
mbed_official	5:b3b3370574cf	669	if (n) n--; /* Decrement read mode open count */
mbed_official	5:b3b3370574cf	670	Files[i].ctr = n;
mbed_official	5:b3b3370574cf	671	if (!n) Files[i].fs = 0; /* Delete the entry if open count gets zero */
mbed_official	5:b3b3370574cf	672	res = FR_OK;
mbed_official	5:b3b3370574cf	673	} else {
mbed_official	5:b3b3370574cf	674	res = FR_INT_ERR; /* Invalid index nunber */
mbed_official	5:b3b3370574cf	675	}
mbed_official	5:b3b3370574cf	676	return res;
emilmont	1:46ce1e16c870	677	}
emilmont	1:46ce1e16c870	678
emilmont	1:46ce1e16c870	679
emilmont	1:46ce1e16c870	680	static
mbed_official	5:b3b3370574cf	681	void clear_lock ( /* Clear lock entries of the volume */
mbed_official	5:b3b3370574cf	682	FATFS *fs
emilmont	1:46ce1e16c870	683	)
emilmont	1:46ce1e16c870	684	{
mbed_official	5:b3b3370574cf	685	UINT i;
mbed_official	5:b3b3370574cf	686
mbed_official	5:b3b3370574cf	687	for (i = 0; i < _FS_LOCK; i++) {
mbed_official	5:b3b3370574cf	688	if (Files[i].fs == fs) Files[i].fs = 0;
mbed_official	5:b3b3370574cf	689	}
emilmont	1:46ce1e16c870	690	}
emilmont	1:46ce1e16c870	691	#endif
emilmont	1:46ce1e16c870	692
emilmont	1:46ce1e16c870	693
emilmont	1:46ce1e16c870	694
mbed_official	5:b3b3370574cf	695
emilmont	1:46ce1e16c870	696	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	697	/* Move/Flush disk access window in the file system object */
emilmont	1:46ce1e16c870	698	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	699	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	700	static
mbed_official	6:a5fcdbf92056	701	FRESULT sync_window ( /* FR_OK:succeeded, !=0:error */
mbed_official	5:b3b3370574cf	702	FATFS* fs /* File system object */
mbed_official	5:b3b3370574cf	703	)
mbed_official	5:b3b3370574cf	704	{
mbed_official	5:b3b3370574cf	705	DWORD wsect;
mbed_official	5:b3b3370574cf	706	UINT nf;
mbed_official	5:b3b3370574cf	707	FRESULT res = FR_OK;
mbed_official	5:b3b3370574cf	708
mbed_official	5:b3b3370574cf	709
mbed_official	5:b3b3370574cf	710	if (fs->wflag) { /* Write back the sector if it is dirty */
mbed_official	5:b3b3370574cf	711	wsect = fs->winsect; /* Current sector number */
mbed_official	5:b3b3370574cf	712	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK) {
mbed_official	5:b3b3370574cf	713	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	714	} else {
mbed_official	5:b3b3370574cf	715	fs->wflag = 0;
mbed_official	5:b3b3370574cf	716	if (wsect - fs->fatbase < fs->fsize) { /* Is it in the FAT area? */
mbed_official	5:b3b3370574cf	717	for (nf = fs->n_fats; nf >= 2; nf--) { /* Reflect the change to all FAT copies */
mbed_official	5:b3b3370574cf	718	wsect += fs->fsize;
mbed_official	5:b3b3370574cf	719	disk_write(fs->drv, fs->win, wsect, 1);
mbed_official	5:b3b3370574cf	720	}
mbed_official	5:b3b3370574cf	721	}
mbed_official	5:b3b3370574cf	722	}
mbed_official	5:b3b3370574cf	723	}
mbed_official	5:b3b3370574cf	724	return res;
mbed_official	5:b3b3370574cf	725	}
mbed_official	5:b3b3370574cf	726	#endif
mbed_official	5:b3b3370574cf	727
emilmont	1:46ce1e16c870	728
emilmont	1:46ce1e16c870	729	static
mbed_official	6:a5fcdbf92056	730	FRESULT move_window ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	5:b3b3370574cf	731	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	732	DWORD sector /* Sector number to make appearance in the fs->win[] */
mbed_official	5:b3b3370574cf	733	)
emilmont	1:46ce1e16c870	734	{
mbed_official	5:b3b3370574cf	735	FRESULT res = FR_OK;
mbed_official	5:b3b3370574cf	736
mbed_official	5:b3b3370574cf	737
mbed_official	5:b3b3370574cf	738	if (sector != fs->winsect) { /* Window offset changed? */
emilmont	1:46ce1e16c870	739	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	740	res = sync_window(fs); /* Write-back changes */
emilmont	1:46ce1e16c870	741	#endif
mbed_official	5:b3b3370574cf	742	if (res == FR_OK) { /* Fill sector window with new data */
mbed_official	5:b3b3370574cf	743	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK) {
mbed_official	5:b3b3370574cf	744	sector = 0xFFFFFFFF; /* Invalidate window if data is not reliable */
mbed_official	5:b3b3370574cf	745	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	746	}
mbed_official	5:b3b3370574cf	747	fs->winsect = sector;
mbed_official	5:b3b3370574cf	748	}
mbed_official	5:b3b3370574cf	749	}
mbed_official	5:b3b3370574cf	750	return res;
emilmont	1:46ce1e16c870	751	}
emilmont	1:46ce1e16c870	752
emilmont	1:46ce1e16c870	753
emilmont	1:46ce1e16c870	754
emilmont	1:46ce1e16c870	755
emilmont	1:46ce1e16c870	756	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	757	/* Synchronize file system and strage device */
emilmont	1:46ce1e16c870	758	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	759	#if !_FS_READONLY
emilmont	1:46ce1e16c870	760	static
mbed_official	6:a5fcdbf92056	761	FRESULT sync_fs ( /* FR_OK:succeeded, !=0:error */
mbed_official	5:b3b3370574cf	762	FATFS* fs /* File system object */
emilmont	1:46ce1e16c870	763	)
emilmont	1:46ce1e16c870	764	{
mbed_official	5:b3b3370574cf	765	FRESULT res;
mbed_official	5:b3b3370574cf	766
mbed_official	5:b3b3370574cf	767
mbed_official	5:b3b3370574cf	768	res = sync_window(fs);
mbed_official	5:b3b3370574cf	769	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	770	/* Update FSInfo sector if needed */
mbed_official	5:b3b3370574cf	771	if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) {
mbed_official	6:a5fcdbf92056	772	/* Create FSInfo structure */
mbed_official	5:b3b3370574cf	773	mem_set(fs->win, 0, SS(fs));
mbed_official	5:b3b3370574cf	774	ST_WORD(fs->win + BS_55AA, 0xAA55);
mbed_official	5:b3b3370574cf	775	ST_DWORD(fs->win + FSI_LeadSig, 0x41615252);
mbed_official	5:b3b3370574cf	776	ST_DWORD(fs->win + FSI_StrucSig, 0x61417272);
mbed_official	5:b3b3370574cf	777	ST_DWORD(fs->win + FSI_Free_Count, fs->free_clust);
mbed_official	5:b3b3370574cf	778	ST_DWORD(fs->win + FSI_Nxt_Free, fs->last_clust);
mbed_official	6:a5fcdbf92056	779	/* Write it into the FSInfo sector */
mbed_official	5:b3b3370574cf	780	fs->winsect = fs->volbase + 1;
mbed_official	5:b3b3370574cf	781	disk_write(fs->drv, fs->win, fs->winsect, 1);
mbed_official	5:b3b3370574cf	782	fs->fsi_flag = 0;
mbed_official	5:b3b3370574cf	783	}
mbed_official	5:b3b3370574cf	784	/* Make sure that no pending write process in the physical drive */
mbed_official	5:b3b3370574cf	785	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
mbed_official	5:b3b3370574cf	786	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	787	}
mbed_official	5:b3b3370574cf	788
mbed_official	5:b3b3370574cf	789	return res;
emilmont	1:46ce1e16c870	790	}
emilmont	1:46ce1e16c870	791	#endif
emilmont	1:46ce1e16c870	792
emilmont	1:46ce1e16c870	793
emilmont	1:46ce1e16c870	794
emilmont	1:46ce1e16c870	795
emilmont	1:46ce1e16c870	796	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	797	/* Get sector# from cluster# */
emilmont	1:46ce1e16c870	798	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	799	/* Hidden API for hacks and disk tools */
mbed_official	5:b3b3370574cf	800
mbed_official	6:a5fcdbf92056	801	DWORD clust2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */
mbed_official	5:b3b3370574cf	802	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	803	DWORD clst /* Cluster# to be converted */
emilmont	1:46ce1e16c870	804	)
emilmont	1:46ce1e16c870	805	{
mbed_official	5:b3b3370574cf	806	clst -= 2;
mbed_official	5:b3b3370574cf	807	if (clst >= fs->n_fatent - 2) return 0; /* Invalid cluster# */
mbed_official	5:b3b3370574cf	808	return clst * fs->csize + fs->database;
emilmont	1:46ce1e16c870	809	}
emilmont	1:46ce1e16c870	810
emilmont	1:46ce1e16c870	811
emilmont	1:46ce1e16c870	812
emilmont	1:46ce1e16c870	813
emilmont	1:46ce1e16c870	814	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	815	/* FAT access - Read value of a FAT entry */
emilmont	1:46ce1e16c870	816	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	817	/* Hidden API for hacks and disk tools */
mbed_official	5:b3b3370574cf	818
mbed_official	5:b3b3370574cf	819	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluster status */
mbed_official	5:b3b3370574cf	820	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	821	DWORD clst /* FAT index number (cluster number) to get the value */
emilmont	1:46ce1e16c870	822	)
emilmont	1:46ce1e16c870	823	{
mbed_official	5:b3b3370574cf	824	UINT wc, bc;
mbed_official	5:b3b3370574cf	825	BYTE *p;
mbed_official	5:b3b3370574cf	826	DWORD val;
mbed_official	5:b3b3370574cf	827
mbed_official	5:b3b3370574cf	828
mbed_official	6:a5fcdbf92056	829	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
mbed_official	5:b3b3370574cf	830	val = 1; /* Internal error */
mbed_official	5:b3b3370574cf	831
mbed_official	5:b3b3370574cf	832	} else {
mbed_official	5:b3b3370574cf	833	val = 0xFFFFFFFF; /* Default value falls on disk error */
mbed_official	5:b3b3370574cf	834
mbed_official	5:b3b3370574cf	835	switch (fs->fs_type) {
mbed_official	5:b3b3370574cf	836	case FS_FAT12 :
mbed_official	5:b3b3370574cf	837	bc = (UINT)clst; bc += bc / 2;
mbed_official	5:b3b3370574cf	838	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
mbed_official	5:b3b3370574cf	839	wc = fs->win[bc++ % SS(fs)];
mbed_official	5:b3b3370574cf	840	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
mbed_official	5:b3b3370574cf	841	wc \|= fs->win[bc % SS(fs)] << 8;
mbed_official	5:b3b3370574cf	842	val = clst & 1 ? wc >> 4 : (wc & 0xFFF);
mbed_official	5:b3b3370574cf	843	break;
mbed_official	5:b3b3370574cf	844
mbed_official	5:b3b3370574cf	845	case FS_FAT16 :
mbed_official	5:b3b3370574cf	846	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break;
mbed_official	5:b3b3370574cf	847	p = &fs->win[clst * 2 % SS(fs)];
mbed_official	5:b3b3370574cf	848	val = LD_WORD(p);
mbed_official	5:b3b3370574cf	849	break;
mbed_official	5:b3b3370574cf	850
mbed_official	5:b3b3370574cf	851	case FS_FAT32 :
mbed_official	5:b3b3370574cf	852	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;
mbed_official	5:b3b3370574cf	853	p = &fs->win[clst * 4 % SS(fs)];
mbed_official	5:b3b3370574cf	854	val = LD_DWORD(p) & 0x0FFFFFFF;
mbed_official	5:b3b3370574cf	855	break;
mbed_official	5:b3b3370574cf	856
mbed_official	5:b3b3370574cf	857	default:
mbed_official	5:b3b3370574cf	858	val = 1; /* Internal error */
mbed_official	5:b3b3370574cf	859	}
mbed_official	5:b3b3370574cf	860	}
mbed_official	5:b3b3370574cf	861
mbed_official	5:b3b3370574cf	862	return val;
emilmont	1:46ce1e16c870	863	}
emilmont	1:46ce1e16c870	864
emilmont	1:46ce1e16c870	865
emilmont	1:46ce1e16c870	866
emilmont	1:46ce1e16c870	867
emilmont	1:46ce1e16c870	868	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	869	/* FAT access - Change value of a FAT entry */
emilmont	1:46ce1e16c870	870	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	871	/* Hidden API for hacks and disk tools */
mbed_official	5:b3b3370574cf	872
emilmont	1:46ce1e16c870	873	#if !_FS_READONLY
mbed_official	6:a5fcdbf92056	874	FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	6:a5fcdbf92056	875	FATFS* fs, /* File system object */
mbed_official	6:a5fcdbf92056	876	DWORD clst, /* FAT index number (cluster number) to be changed */
mbed_official	6:a5fcdbf92056	877	DWORD val /* New value to be set to the entry */
emilmont	1:46ce1e16c870	878	)
emilmont	1:46ce1e16c870	879	{
mbed_official	5:b3b3370574cf	880	UINT bc;
mbed_official	5:b3b3370574cf	881	BYTE *p;
mbed_official	5:b3b3370574cf	882	FRESULT res;
mbed_official	5:b3b3370574cf	883
mbed_official	5:b3b3370574cf	884
mbed_official	6:a5fcdbf92056	885	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
mbed_official	5:b3b3370574cf	886	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	887
mbed_official	5:b3b3370574cf	888	} else {
mbed_official	5:b3b3370574cf	889	switch (fs->fs_type) {
mbed_official	5:b3b3370574cf	890	case FS_FAT12 :
mbed_official	5:b3b3370574cf	891	bc = (UINT)clst; bc += bc / 2;
mbed_official	5:b3b3370574cf	892	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mbed_official	5:b3b3370574cf	893	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	894	p = &fs->win[bc++ % SS(fs)];
mbed_official	5:b3b3370574cf	895	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
mbed_official	5:b3b3370574cf	896	fs->wflag = 1;
mbed_official	5:b3b3370574cf	897	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mbed_official	5:b3b3370574cf	898	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	899	p = &fs->win[bc % SS(fs)];
mbed_official	5:b3b3370574cf	900	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
mbed_official	5:b3b3370574cf	901	fs->wflag = 1;
mbed_official	5:b3b3370574cf	902	break;
mbed_official	5:b3b3370574cf	903
mbed_official	5:b3b3370574cf	904	case FS_FAT16 :
mbed_official	5:b3b3370574cf	905	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
mbed_official	5:b3b3370574cf	906	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	907	p = &fs->win[clst * 2 % SS(fs)];
mbed_official	5:b3b3370574cf	908	ST_WORD(p, (WORD)val);
mbed_official	5:b3b3370574cf	909	fs->wflag = 1;
mbed_official	5:b3b3370574cf	910	break;
mbed_official	5:b3b3370574cf	911
mbed_official	5:b3b3370574cf	912	case FS_FAT32 :
mbed_official	5:b3b3370574cf	913	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
mbed_official	5:b3b3370574cf	914	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	915	p = &fs->win[clst * 4 % SS(fs)];
mbed_official	5:b3b3370574cf	916	val \|= LD_DWORD(p) & 0xF0000000;
mbed_official	5:b3b3370574cf	917	ST_DWORD(p, val);
mbed_official	5:b3b3370574cf	918	fs->wflag = 1;
mbed_official	5:b3b3370574cf	919	break;
mbed_official	5:b3b3370574cf	920
mbed_official	5:b3b3370574cf	921	default :
mbed_official	5:b3b3370574cf	922	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	923	}
mbed_official	5:b3b3370574cf	924	}
mbed_official	5:b3b3370574cf	925
mbed_official	5:b3b3370574cf	926	return res;
emilmont	1:46ce1e16c870	927	}
emilmont	1:46ce1e16c870	928	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	929
emilmont	1:46ce1e16c870	930
emilmont	1:46ce1e16c870	931
emilmont	1:46ce1e16c870	932
emilmont	1:46ce1e16c870	933	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	934	/* FAT handling - Remove a cluster chain */
emilmont	1:46ce1e16c870	935	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	936	#if !_FS_READONLY
emilmont	1:46ce1e16c870	937	static
mbed_official	6:a5fcdbf92056	938	FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	5:b3b3370574cf	939	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	940	DWORD clst /* Cluster# to remove a chain from */
emilmont	1:46ce1e16c870	941	)
emilmont	1:46ce1e16c870	942	{
mbed_official	5:b3b3370574cf	943	FRESULT res;
mbed_official	5:b3b3370574cf	944	DWORD nxt;
mbed_official	5:b3b3370574cf	945	#if _USE_TRIM
mbed_official	5:b3b3370574cf	946	DWORD scl = clst, ecl = clst, rt[2];
emilmont	1:46ce1e16c870	947	#endif
emilmont	1:46ce1e16c870	948
mbed_official	6:a5fcdbf92056	949	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
mbed_official	5:b3b3370574cf	950	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	951
mbed_official	5:b3b3370574cf	952	} else {
mbed_official	5:b3b3370574cf	953	res = FR_OK;
mbed_official	5:b3b3370574cf	954	while (clst < fs->n_fatent) { /* Not a last link? */
mbed_official	5:b3b3370574cf	955	nxt = get_fat(fs, clst); /* Get cluster status */
mbed_official	5:b3b3370574cf	956	if (nxt == 0) break; /* Empty cluster? */
mbed_official	5:b3b3370574cf	957	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
mbed_official	5:b3b3370574cf	958	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
mbed_official	5:b3b3370574cf	959	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
mbed_official	5:b3b3370574cf	960	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	961	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSINFO */
mbed_official	5:b3b3370574cf	962	fs->free_clust++;
mbed_official	5:b3b3370574cf	963	fs->fsi_flag \|= 1;
mbed_official	5:b3b3370574cf	964	}
mbed_official	5:b3b3370574cf	965	#if _USE_TRIM
mbed_official	5:b3b3370574cf	966	if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
mbed_official	5:b3b3370574cf	967	ecl = nxt;
mbed_official	5:b3b3370574cf	968	} else { /* End of contiguous clusters */
mbed_official	5:b3b3370574cf	969	rt[0] = clust2sect(fs, scl); /* Start sector */
mbed_official	5:b3b3370574cf	970	rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
mbed_official	5:b3b3370574cf	971	disk_ioctl(fs->drv, CTRL_TRIM, rt); /* Erase the block */
mbed_official	5:b3b3370574cf	972	scl = ecl = nxt;
mbed_official	5:b3b3370574cf	973	}
emilmont	1:46ce1e16c870	974	#endif
mbed_official	5:b3b3370574cf	975	clst = nxt; /* Next cluster */
mbed_official	5:b3b3370574cf	976	}
mbed_official	5:b3b3370574cf	977	}
mbed_official	5:b3b3370574cf	978
mbed_official	5:b3b3370574cf	979	return res;
emilmont	1:46ce1e16c870	980	}
emilmont	1:46ce1e16c870	981	#endif
emilmont	1:46ce1e16c870	982
emilmont	1:46ce1e16c870	983
emilmont	1:46ce1e16c870	984
emilmont	1:46ce1e16c870	985
emilmont	1:46ce1e16c870	986	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	987	/* FAT handling - Stretch or Create a cluster chain */
emilmont	1:46ce1e16c870	988	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	989	#if !_FS_READONLY
emilmont	1:46ce1e16c870	990	static
mbed_official	5:b3b3370574cf	991	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
mbed_official	5:b3b3370574cf	992	FATFS* fs, /* File system object */
mbed_official	6:a5fcdbf92056	993	DWORD clst /* Cluster# to stretch, 0:Create a new chain */
emilmont	1:46ce1e16c870	994	)
emilmont	1:46ce1e16c870	995	{
mbed_official	5:b3b3370574cf	996	DWORD cs, ncl, scl;
mbed_official	5:b3b3370574cf	997	FRESULT res;
mbed_official	5:b3b3370574cf	998
mbed_official	5:b3b3370574cf	999
mbed_official	5:b3b3370574cf	1000	if (clst == 0) { /* Create a new chain */
mbed_official	5:b3b3370574cf	1001	scl = fs->last_clust; /* Get suggested start point */
mbed_official	5:b3b3370574cf	1002	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
mbed_official	5:b3b3370574cf	1003	}
mbed_official	5:b3b3370574cf	1004	else { /* Stretch the current chain */
mbed_official	5:b3b3370574cf	1005	cs = get_fat(fs, clst); /* Check the cluster status */
mbed_official	5:b3b3370574cf	1006	if (cs < 2) return 1; /* Invalid value */
mbed_official	5:b3b3370574cf	1007	if (cs == 0xFFFFFFFF) return cs; /* A disk error occurred */
mbed_official	5:b3b3370574cf	1008	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
mbed_official	5:b3b3370574cf	1009	scl = clst;
mbed_official	5:b3b3370574cf	1010	}
mbed_official	5:b3b3370574cf	1011
mbed_official	5:b3b3370574cf	1012	ncl = scl; /* Start cluster */
mbed_official	5:b3b3370574cf	1013	for (;;) {
mbed_official	5:b3b3370574cf	1014	ncl++; /* Next cluster */
mbed_official	5:b3b3370574cf	1015	if (ncl >= fs->n_fatent) { /* Check wrap around */
mbed_official	5:b3b3370574cf	1016	ncl = 2;
mbed_official	5:b3b3370574cf	1017	if (ncl > scl) return 0; /* No free cluster */
mbed_official	5:b3b3370574cf	1018	}
mbed_official	5:b3b3370574cf	1019	cs = get_fat(fs, ncl); /* Get the cluster status */
mbed_official	5:b3b3370574cf	1020	if (cs == 0) break; /* Found a free cluster */
mbed_official	5:b3b3370574cf	1021	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
mbed_official	5:b3b3370574cf	1022	return cs;
mbed_official	5:b3b3370574cf	1023	if (ncl == scl) return 0; /* No free cluster */
mbed_official	5:b3b3370574cf	1024	}
mbed_official	5:b3b3370574cf	1025
mbed_official	5:b3b3370574cf	1026	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
mbed_official	5:b3b3370574cf	1027	if (res == FR_OK && clst != 0) {
mbed_official	5:b3b3370574cf	1028	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
mbed_official	5:b3b3370574cf	1029	}
mbed_official	5:b3b3370574cf	1030	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1031	fs->last_clust = ncl; /* Update FSINFO */
mbed_official	5:b3b3370574cf	1032	if (fs->free_clust != 0xFFFFFFFF) {
mbed_official	5:b3b3370574cf	1033	fs->free_clust--;
mbed_official	5:b3b3370574cf	1034	fs->fsi_flag \|= 1;
mbed_official	5:b3b3370574cf	1035	}
mbed_official	5:b3b3370574cf	1036	} else {
mbed_official	5:b3b3370574cf	1037	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
mbed_official	5:b3b3370574cf	1038	}
mbed_official	5:b3b3370574cf	1039
mbed_official	5:b3b3370574cf	1040	return ncl; /* Return new cluster number or error code */
emilmont	1:46ce1e16c870	1041	}
emilmont	1:46ce1e16c870	1042	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	1043
emilmont	1:46ce1e16c870	1044
emilmont	1:46ce1e16c870	1045
mbed_official	5:b3b3370574cf	1046
emilmont	1:46ce1e16c870	1047	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1048	/* FAT handling - Convert offset into cluster with link map table */
emilmont	1:46ce1e16c870	1049	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1050
emilmont	1:46ce1e16c870	1051	#if _USE_FASTSEEK
emilmont	1:46ce1e16c870	1052	static
mbed_official	5:b3b3370574cf	1053	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
mbed_official	5:b3b3370574cf	1054	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	1055	DWORD ofs /* File offset to be converted to cluster# */
emilmont	1:46ce1e16c870	1056	)
emilmont	1:46ce1e16c870	1057	{
mbed_official	5:b3b3370574cf	1058	DWORD cl, ncl, *tbl;
mbed_official	5:b3b3370574cf	1059
mbed_official	5:b3b3370574cf	1060
mbed_official	5:b3b3370574cf	1061	tbl = fp->cltbl + 1; /* Top of CLMT */
mbed_official	5:b3b3370574cf	1062	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
mbed_official	5:b3b3370574cf	1063	for (;;) {
mbed_official	5:b3b3370574cf	1064	ncl = tbl++; / Number of cluters in the fragment */
mbed_official	5:b3b3370574cf	1065	if (!ncl) return 0; /* End of table? (error) */
mbed_official	5:b3b3370574cf	1066	if (cl < ncl) break; /* In this fragment? */
mbed_official	5:b3b3370574cf	1067	cl -= ncl; tbl++; /* Next fragment */
mbed_official	5:b3b3370574cf	1068	}
mbed_official	5:b3b3370574cf	1069	return cl + tbl; / Return the cluster number */
emilmont	1:46ce1e16c870	1070	}
mbed_official	5:b3b3370574cf	1071	#endif /* _USE_FASTSEEK */
mbed_official	5:b3b3370574cf	1072
emilmont	1:46ce1e16c870	1073
emilmont	1:46ce1e16c870	1074
emilmont	1:46ce1e16c870	1075
emilmont	1:46ce1e16c870	1076	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1077	/* Directory handling - Set directory index */
emilmont	1:46ce1e16c870	1078	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1079
emilmont	1:46ce1e16c870	1080	static
mbed_official	6:a5fcdbf92056	1081	FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	5:b3b3370574cf	1082	FATFS_DIR* dp, /* Pointer to directory object */
mbed_official	5:b3b3370574cf	1083	UINT idx /* Index of directory table */
emilmont	1:46ce1e16c870	1084	)
emilmont	1:46ce1e16c870	1085	{
mbed_official	5:b3b3370574cf	1086	DWORD clst, sect;
mbed_official	5:b3b3370574cf	1087	UINT ic;
mbed_official	5:b3b3370574cf	1088
mbed_official	5:b3b3370574cf	1089
mbed_official	5:b3b3370574cf	1090	dp->index = (WORD)idx; /* Current index */
mbed_official	5:b3b3370574cf	1091	clst = dp->sclust; /* Table start cluster (0:root) */
mbed_official	5:b3b3370574cf	1092	if (clst == 1 \|\| clst >= dp->fs->n_fatent) /* Check start cluster range */
mbed_official	5:b3b3370574cf	1093	return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1094	if (!clst && dp->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
mbed_official	5:b3b3370574cf	1095	clst = dp->fs->dirbase;
mbed_official	5:b3b3370574cf	1096
mbed_official	5:b3b3370574cf	1097	if (clst == 0) { /* Static table (root-directory in FAT12/16) */
mbed_official	5:b3b3370574cf	1098	if (idx >= dp->fs->n_rootdir) /* Is index out of range? */
mbed_official	5:b3b3370574cf	1099	return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1100	sect = dp->fs->dirbase;
mbed_official	5:b3b3370574cf	1101	}
mbed_official	5:b3b3370574cf	1102	else { /* Dynamic table (root-directory in FAT32 or sub-directory) */
mbed_official	5:b3b3370574cf	1103	ic = SS(dp->fs) / SZ_DIRE * dp->fs->csize; /* Entries per cluster */
mbed_official	5:b3b3370574cf	1104	while (idx >= ic) { /* Follow cluster chain */
mbed_official	5:b3b3370574cf	1105	clst = get_fat(dp->fs, clst); /* Get next cluster */
mbed_official	5:b3b3370574cf	1106	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
mbed_official	5:b3b3370574cf	1107	if (clst < 2 \|\| clst >= dp->fs->n_fatent) /* Reached to end of table or internal error */
mbed_official	5:b3b3370574cf	1108	return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1109	idx -= ic;
mbed_official	5:b3b3370574cf	1110	}
mbed_official	5:b3b3370574cf	1111	sect = clust2sect(dp->fs, clst);
mbed_official	5:b3b3370574cf	1112	}
mbed_official	5:b3b3370574cf	1113	dp->clust = clst; /* Current cluster# */
mbed_official	5:b3b3370574cf	1114	if (!sect) return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1115	dp->sect = sect + idx / (SS(dp->fs) / SZ_DIRE); /* Sector# of the directory entry */
mbed_official	6:a5fcdbf92056	1116	dp->dir = dp->fs->win + (idx % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Ptr to the entry in the sector */
mbed_official	5:b3b3370574cf	1117
mbed_official	5:b3b3370574cf	1118	return FR_OK;
emilmont	1:46ce1e16c870	1119	}
emilmont	1:46ce1e16c870	1120
emilmont	1:46ce1e16c870	1121
emilmont	1:46ce1e16c870	1122
emilmont	1:46ce1e16c870	1123
emilmont	1:46ce1e16c870	1124	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1125	/* Directory handling - Move directory table index next */
emilmont	1:46ce1e16c870	1126	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1127
emilmont	1:46ce1e16c870	1128	static
mbed_official	6:a5fcdbf92056	1129	FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
mbed_official	5:b3b3370574cf	1130	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1131	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
emilmont	1:46ce1e16c870	1132	)
emilmont	1:46ce1e16c870	1133	{
mbed_official	5:b3b3370574cf	1134	DWORD clst;
mbed_official	5:b3b3370574cf	1135	UINT i;
mbed_official	5:b3b3370574cf	1136	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	1137	UINT c;
mbed_official	5:b3b3370574cf	1138	#endif
mbed_official	5:b3b3370574cf	1139
mbed_official	5:b3b3370574cf	1140
mbed_official	5:b3b3370574cf	1141	i = dp->index + 1;
mbed_official	5:b3b3370574cf	1142	if (!(i & 0xFFFF) \|\| !dp->sect) /* Report EOT when index has reached 65535 */
mbed_official	5:b3b3370574cf	1143	return FR_NO_FILE;
mbed_official	5:b3b3370574cf	1144
mbed_official	5:b3b3370574cf	1145	if (!(i % (SS(dp->fs) / SZ_DIRE))) { /* Sector changed? */
mbed_official	5:b3b3370574cf	1146	dp->sect++; /* Next sector */
mbed_official	5:b3b3370574cf	1147
mbed_official	5:b3b3370574cf	1148	if (!dp->clust) { /* Static table */
mbed_official	5:b3b3370574cf	1149	if (i >= dp->fs->n_rootdir) /* Report EOT if it reached end of static table */
mbed_official	5:b3b3370574cf	1150	return FR_NO_FILE;
mbed_official	5:b3b3370574cf	1151	}
mbed_official	5:b3b3370574cf	1152	else { /* Dynamic table */
mbed_official	5:b3b3370574cf	1153	if (((i / (SS(dp->fs) / SZ_DIRE)) & (dp->fs->csize - 1)) == 0) { /* Cluster changed? */
mbed_official	5:b3b3370574cf	1154	clst = get_fat(dp->fs, dp->clust); /* Get next cluster */
mbed_official	5:b3b3370574cf	1155	if (clst <= 1) return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1156	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	1157	if (clst >= dp->fs->n_fatent) { /* If it reached end of dynamic table, */
emilmont	1:46ce1e16c870	1158	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	1159	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT */
mbed_official	5:b3b3370574cf	1160	clst = create_chain(dp->fs, dp->clust); /* Stretch cluster chain */
mbed_official	5:b3b3370574cf	1161	if (clst == 0) return FR_DENIED; /* No free cluster */
mbed_official	5:b3b3370574cf	1162	if (clst == 1) return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1163	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	1164	/* Clean-up stretched table */
mbed_official	5:b3b3370574cf	1165	if (sync_window(dp->fs)) return FR_DISK_ERR;/* Flush disk access window */
mbed_official	5:b3b3370574cf	1166	mem_set(dp->fs->win, 0, SS(dp->fs)); /* Clear window buffer */
mbed_official	5:b3b3370574cf	1167	dp->fs->winsect = clust2sect(dp->fs, clst); /* Cluster start sector */
mbed_official	5:b3b3370574cf	1168	for (c = 0; c < dp->fs->csize; c++) { /* Fill the new cluster with 0 */
mbed_official	5:b3b3370574cf	1169	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1170	if (sync_window(dp->fs)) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	1171	dp->fs->winsect++;
mbed_official	5:b3b3370574cf	1172	}
mbed_official	5:b3b3370574cf	1173	dp->fs->winsect -= c; /* Rewind window offset */
emilmont	1:46ce1e16c870	1174	#else
mbed_official	5:b3b3370574cf	1175	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT (this is to suppress warning) */
mbed_official	5:b3b3370574cf	1176	return FR_NO_FILE; /* Report EOT */
emilmont	1:46ce1e16c870	1177	#endif
mbed_official	5:b3b3370574cf	1178	}
mbed_official	5:b3b3370574cf	1179	dp->clust = clst; /* Initialize data for new cluster */
mbed_official	5:b3b3370574cf	1180	dp->sect = clust2sect(dp->fs, clst);
mbed_official	5:b3b3370574cf	1181	}
mbed_official	5:b3b3370574cf	1182	}
mbed_official	5:b3b3370574cf	1183	}
mbed_official	5:b3b3370574cf	1184
mbed_official	5:b3b3370574cf	1185	dp->index = (WORD)i; /* Current index */
mbed_official	6:a5fcdbf92056	1186	dp->dir = dp->fs->win + (i % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Current entry in the window */
mbed_official	5:b3b3370574cf	1187
mbed_official	5:b3b3370574cf	1188	return FR_OK;
emilmont	1:46ce1e16c870	1189	}
emilmont	1:46ce1e16c870	1190
emilmont	1:46ce1e16c870	1191
emilmont	1:46ce1e16c870	1192
emilmont	1:46ce1e16c870	1193
emilmont	1:46ce1e16c870	1194	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1195	/* Directory handling - Reserve directory entry */
mbed_official	5:b3b3370574cf	1196	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1197
mbed_official	5:b3b3370574cf	1198	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	1199	static
mbed_official	6:a5fcdbf92056	1200	FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	6:a5fcdbf92056	1201	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	6:a5fcdbf92056	1202	UINT nent /* Number of contiguous entries to allocate (1-21) */
mbed_official	5:b3b3370574cf	1203	)
mbed_official	5:b3b3370574cf	1204	{
mbed_official	5:b3b3370574cf	1205	FRESULT res;
mbed_official	5:b3b3370574cf	1206	UINT n;
mbed_official	5:b3b3370574cf	1207
mbed_official	5:b3b3370574cf	1208
mbed_official	5:b3b3370574cf	1209	res = dir_sdi(dp, 0);
mbed_official	5:b3b3370574cf	1210	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1211	n = 0;
mbed_official	5:b3b3370574cf	1212	do {
mbed_official	5:b3b3370574cf	1213	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1214	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1215	if (dp->dir[0] == DDEM \|\| dp->dir[0] == 0) { /* Is it a free entry? */
mbed_official	5:b3b3370574cf	1216	if (++n == nent) break; /* A block of contiguous free entries is found */
mbed_official	5:b3b3370574cf	1217	} else {
mbed_official	5:b3b3370574cf	1218	n = 0; /* Not a blank entry. Restart to search */
mbed_official	5:b3b3370574cf	1219	}
mbed_official	5:b3b3370574cf	1220	res = dir_next(dp, 1); /* Next entry with table stretch enabled */
mbed_official	5:b3b3370574cf	1221	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	1222	}
mbed_official	5:b3b3370574cf	1223	if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */
mbed_official	5:b3b3370574cf	1224	return res;
mbed_official	5:b3b3370574cf	1225	}
mbed_official	5:b3b3370574cf	1226	#endif
mbed_official	5:b3b3370574cf	1227
mbed_official	5:b3b3370574cf	1228
mbed_official	5:b3b3370574cf	1229
mbed_official	5:b3b3370574cf	1230
mbed_official	5:b3b3370574cf	1231	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1232	/* Directory handling - Load/Store start cluster number */
emilmont	1:46ce1e16c870	1233	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1234
emilmont	1:46ce1e16c870	1235	static
mbed_official	6:a5fcdbf92056	1236	DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */
mbed_official	6:a5fcdbf92056	1237	FATFS* fs, /* Pointer to the fs object */
mbed_official	6:a5fcdbf92056	1238	const BYTE* dir /* Pointer to the SFN entry */
emilmont	1:46ce1e16c870	1239	)
emilmont	1:46ce1e16c870	1240	{
mbed_official	5:b3b3370574cf	1241	DWORD cl;
mbed_official	5:b3b3370574cf	1242
mbed_official	6:a5fcdbf92056	1243	cl = LD_WORD(dir + DIR_FstClusLO);
mbed_official	5:b3b3370574cf	1244	if (fs->fs_type == FS_FAT32)
mbed_official	6:a5fcdbf92056	1245	cl \|= (DWORD)LD_WORD(dir + DIR_FstClusHI) << 16;
mbed_official	5:b3b3370574cf	1246
mbed_official	5:b3b3370574cf	1247	return cl;
emilmont	1:46ce1e16c870	1248	}
emilmont	1:46ce1e16c870	1249
emilmont	1:46ce1e16c870	1250
emilmont	1:46ce1e16c870	1251	#if !_FS_READONLY
emilmont	1:46ce1e16c870	1252	static
emilmont	1:46ce1e16c870	1253	void st_clust (
mbed_official	6:a5fcdbf92056	1254	BYTE* dir, /* Pointer to the SFN entry */
mbed_official	5:b3b3370574cf	1255	DWORD cl /* Value to be set */
emilmont	1:46ce1e16c870	1256	)
emilmont	1:46ce1e16c870	1257	{
mbed_official	6:a5fcdbf92056	1258	ST_WORD(dir + DIR_FstClusLO, cl);
mbed_official	6:a5fcdbf92056	1259	ST_WORD(dir + DIR_FstClusHI, cl >> 16);
emilmont	1:46ce1e16c870	1260	}
emilmont	1:46ce1e16c870	1261	#endif
emilmont	1:46ce1e16c870	1262
emilmont	1:46ce1e16c870	1263
emilmont	1:46ce1e16c870	1264
mbed_official	5:b3b3370574cf	1265
emilmont	1:46ce1e16c870	1266	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1267	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
emilmont	1:46ce1e16c870	1268	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1269	#if _USE_LFN
emilmont	1:46ce1e16c870	1270	static
mbed_official	5:b3b3370574cf	1271	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	1272
emilmont	1:46ce1e16c870	1273
emilmont	1:46ce1e16c870	1274	static
mbed_official	6:a5fcdbf92056	1275	int cmp_lfn ( /* 1:matched, 0:not matched */
mbed_official	6:a5fcdbf92056	1276	WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */
mbed_official	6:a5fcdbf92056	1277	BYTE* dir /* Pointer to the directory entry containing the part of LFN */
emilmont	1:46ce1e16c870	1278	)
emilmont	1:46ce1e16c870	1279	{
mbed_official	5:b3b3370574cf	1280	UINT i, s;
mbed_official	5:b3b3370574cf	1281	WCHAR wc, uc;
mbed_official	5:b3b3370574cf	1282
mbed_official	5:b3b3370574cf	1283
mbed_official	6:a5fcdbf92056	1284	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
mbed_official	6:a5fcdbf92056	1285
mbed_official	6:a5fcdbf92056	1286	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
mbed_official	6:a5fcdbf92056	1287
mbed_official	6:a5fcdbf92056	1288	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
mbed_official	6:a5fcdbf92056	1289	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
mbed_official	6:a5fcdbf92056	1290	if (wc) {
mbed_official	6:a5fcdbf92056	1291	if (i >= _MAX_LFN \|\| ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) /* Compare it */
mbed_official	6:a5fcdbf92056	1292	return 0; /* Not matched */
mbed_official	6:a5fcdbf92056	1293	wc = uc;
mbed_official	5:b3b3370574cf	1294	} else {
mbed_official	6:a5fcdbf92056	1295	if (uc != 0xFFFF) return 0; /* Check filler */
mbed_official	5:b3b3370574cf	1296	}
mbed_official	6:a5fcdbf92056	1297	}
mbed_official	6:a5fcdbf92056	1298
mbed_official	6:a5fcdbf92056	1299	if ((dir[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) /* Last segment matched but different length */
mbed_official	5:b3b3370574cf	1300	return 0;
mbed_official	5:b3b3370574cf	1301
mbed_official	6:a5fcdbf92056	1302	return 1; /* The part of LFN matched */
emilmont	1:46ce1e16c870	1303	}
emilmont	1:46ce1e16c870	1304
emilmont	1:46ce1e16c870	1305
emilmont	1:46ce1e16c870	1306
emilmont	1:46ce1e16c870	1307	static
mbed_official	6:a5fcdbf92056	1308	int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */
mbed_official	6:a5fcdbf92056	1309	WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
mbed_official	6:a5fcdbf92056	1310	BYTE* dir /* Pointer to the LFN entry */
emilmont	1:46ce1e16c870	1311	)
emilmont	1:46ce1e16c870	1312	{
mbed_official	5:b3b3370574cf	1313	UINT i, s;
mbed_official	5:b3b3370574cf	1314	WCHAR wc, uc;
mbed_official	5:b3b3370574cf	1315
mbed_official	5:b3b3370574cf	1316
mbed_official	6:a5fcdbf92056	1317	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
mbed_official	6:a5fcdbf92056	1318
mbed_official	6:a5fcdbf92056	1319	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
mbed_official	6:a5fcdbf92056	1320
mbed_official	6:a5fcdbf92056	1321	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
mbed_official	6:a5fcdbf92056	1322	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
mbed_official	6:a5fcdbf92056	1323	if (wc) {
mbed_official	5:b3b3370574cf	1324	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mbed_official	5:b3b3370574cf	1325	lfnbuf[i++] = wc = uc; /* Store it */
mbed_official	5:b3b3370574cf	1326	} else {
mbed_official	5:b3b3370574cf	1327	if (uc != 0xFFFF) return 0; /* Check filler */
mbed_official	5:b3b3370574cf	1328	}
mbed_official	6:a5fcdbf92056	1329	}
mbed_official	6:a5fcdbf92056	1330
mbed_official	6:a5fcdbf92056	1331	if (dir[LDIR_Ord] & LLEF) { /* Put terminator if it is the last LFN part */
mbed_official	5:b3b3370574cf	1332	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mbed_official	5:b3b3370574cf	1333	lfnbuf[i] = 0;
mbed_official	5:b3b3370574cf	1334	}
mbed_official	5:b3b3370574cf	1335
mbed_official	6:a5fcdbf92056	1336	return 1; /* The part of LFN is valid */
emilmont	1:46ce1e16c870	1337	}
emilmont	1:46ce1e16c870	1338
emilmont	1:46ce1e16c870	1339
emilmont	1:46ce1e16c870	1340	#if !_FS_READONLY
emilmont	1:46ce1e16c870	1341	static
emilmont	1:46ce1e16c870	1342	void fit_lfn (
mbed_official	6:a5fcdbf92056	1343	const WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
mbed_official	6:a5fcdbf92056	1344	BYTE* dir, /* Pointer to the LFN entry to be processed */
mbed_official	5:b3b3370574cf	1345	BYTE ord, /* LFN order (1-20) */
mbed_official	6:a5fcdbf92056	1346	BYTE sum /* Checksum of the corresponding SFN */
emilmont	1:46ce1e16c870	1347	)
emilmont	1:46ce1e16c870	1348	{
mbed_official	5:b3b3370574cf	1349	UINT i, s;
mbed_official	5:b3b3370574cf	1350	WCHAR wc;
mbed_official	5:b3b3370574cf	1351
mbed_official	5:b3b3370574cf	1352
mbed_official	6:a5fcdbf92056	1353	dir[LDIR_Chksum] = sum; /* Set checksum */
mbed_official	6:a5fcdbf92056	1354	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
mbed_official	6:a5fcdbf92056	1355	dir[LDIR_Type] = 0;
mbed_official	6:a5fcdbf92056	1356	ST_WORD(dir + LDIR_FstClusLO, 0);
mbed_official	6:a5fcdbf92056	1357
mbed_official	6:a5fcdbf92056	1358	i = (ord - 1) * 13; /* Get offset in the LFN working buffer */
mbed_official	5:b3b3370574cf	1359	s = wc = 0;
mbed_official	5:b3b3370574cf	1360	do {
mbed_official	5:b3b3370574cf	1361	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective character */
mbed_official	6:a5fcdbf92056	1362	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
mbed_official	5:b3b3370574cf	1363	if (!wc) wc = 0xFFFF; /* Padding characters following last character */
mbed_official	5:b3b3370574cf	1364	} while (++s < 13);
mbed_official	5:b3b3370574cf	1365	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLEF; /* Bottom LFN part is the start of LFN sequence */
mbed_official	6:a5fcdbf92056	1366	dir[LDIR_Ord] = ord; /* Set the LFN order */
emilmont	1:46ce1e16c870	1367	}
emilmont	1:46ce1e16c870	1368
emilmont	1:46ce1e16c870	1369	#endif
emilmont	1:46ce1e16c870	1370	#endif
emilmont	1:46ce1e16c870	1371
emilmont	1:46ce1e16c870	1372
emilmont	1:46ce1e16c870	1373
mbed_official	5:b3b3370574cf	1374
emilmont	1:46ce1e16c870	1375	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1376	/* Create numbered name */
emilmont	1:46ce1e16c870	1377	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1378	#if _USE_LFN
mbed_official	5:b3b3370574cf	1379	static
emilmont	1:46ce1e16c870	1380	void gen_numname (
mbed_official	5:b3b3370574cf	1381	BYTE* dst, /* Pointer to the buffer to store numbered SFN */
mbed_official	5:b3b3370574cf	1382	const BYTE* src, /* Pointer to SFN */
mbed_official	5:b3b3370574cf	1383	const WCHAR* lfn, /* Pointer to LFN */
mbed_official	5:b3b3370574cf	1384	UINT seq /* Sequence number */
emilmont	1:46ce1e16c870	1385	)
emilmont	1:46ce1e16c870	1386	{
mbed_official	5:b3b3370574cf	1387	BYTE ns[8], c;
mbed_official	5:b3b3370574cf	1388	UINT i, j;
mbed_official	5:b3b3370574cf	1389	WCHAR wc;
mbed_official	5:b3b3370574cf	1390	DWORD sr;
mbed_official	5:b3b3370574cf	1391
mbed_official	5:b3b3370574cf	1392
mbed_official	5:b3b3370574cf	1393	mem_cpy(dst, src, 11);
mbed_official	5:b3b3370574cf	1394
mbed_official	5:b3b3370574cf	1395	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
mbed_official	5:b3b3370574cf	1396	sr = seq;
mbed_official	5:b3b3370574cf	1397	while (lfn) { / Create a CRC */
mbed_official	5:b3b3370574cf	1398	wc = *lfn++;
mbed_official	5:b3b3370574cf	1399	for (i = 0; i < 16; i++) {
mbed_official	5:b3b3370574cf	1400	sr = (sr << 1) + (wc & 1);
mbed_official	5:b3b3370574cf	1401	wc >>= 1;
mbed_official	5:b3b3370574cf	1402	if (sr & 0x10000) sr ^= 0x11021;
mbed_official	5:b3b3370574cf	1403	}
mbed_official	5:b3b3370574cf	1404	}
mbed_official	5:b3b3370574cf	1405	seq = (UINT)sr;
mbed_official	5:b3b3370574cf	1406	}
mbed_official	5:b3b3370574cf	1407
mbed_official	5:b3b3370574cf	1408	/* itoa (hexdecimal) */
mbed_official	5:b3b3370574cf	1409	i = 7;
mbed_official	5:b3b3370574cf	1410	do {
mbed_official	5:b3b3370574cf	1411	c = (seq % 16) + '0';
mbed_official	5:b3b3370574cf	1412	if (c > '9') c += 7;
mbed_official	5:b3b3370574cf	1413	ns[i--] = c;
mbed_official	5:b3b3370574cf	1414	seq /= 16;
mbed_official	5:b3b3370574cf	1415	} while (seq);
mbed_official	5:b3b3370574cf	1416	ns[i] = '~';
mbed_official	5:b3b3370574cf	1417
mbed_official	5:b3b3370574cf	1418	/* Append the number */
mbed_official	5:b3b3370574cf	1419	for (j = 0; j < i && dst[j] != ' '; j++) {
mbed_official	5:b3b3370574cf	1420	if (IsDBCS1(dst[j])) {
mbed_official	5:b3b3370574cf	1421	if (j == i - 1) break;
mbed_official	5:b3b3370574cf	1422	j++;
mbed_official	5:b3b3370574cf	1423	}
mbed_official	5:b3b3370574cf	1424	}
mbed_official	5:b3b3370574cf	1425	do {
mbed_official	5:b3b3370574cf	1426	dst[j++] = (i < 8) ? ns[i++] : ' ';
mbed_official	5:b3b3370574cf	1427	} while (j < 8);
emilmont	1:46ce1e16c870	1428	}
emilmont	1:46ce1e16c870	1429	#endif
emilmont	1:46ce1e16c870	1430
emilmont	1:46ce1e16c870	1431
emilmont	1:46ce1e16c870	1432
emilmont	1:46ce1e16c870	1433
emilmont	1:46ce1e16c870	1434	/-----------------------------------------------------------------------/
mbed_official	6:a5fcdbf92056	1435	/* Calculate checksum of an SFN entry */
emilmont	1:46ce1e16c870	1436	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1437	#if _USE_LFN
emilmont	1:46ce1e16c870	1438	static
emilmont	1:46ce1e16c870	1439	BYTE sum_sfn (
mbed_official	6:a5fcdbf92056	1440	const BYTE* dir /* Pointer to the SFN entry */
emilmont	1:46ce1e16c870	1441	)
emilmont	1:46ce1e16c870	1442	{
mbed_official	5:b3b3370574cf	1443	BYTE sum = 0;
mbed_official	5:b3b3370574cf	1444	UINT n = 11;
mbed_official	5:b3b3370574cf	1445
mbed_official	6:a5fcdbf92056	1446	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
mbed_official	5:b3b3370574cf	1447	return sum;
emilmont	1:46ce1e16c870	1448	}
emilmont	1:46ce1e16c870	1449	#endif
emilmont	1:46ce1e16c870	1450
emilmont	1:46ce1e16c870	1451
emilmont	1:46ce1e16c870	1452
emilmont	1:46ce1e16c870	1453
emilmont	1:46ce1e16c870	1454	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1455	/* Directory handling - Find an object in the directory */
emilmont	1:46ce1e16c870	1456	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1457
emilmont	1:46ce1e16c870	1458	static
mbed_official	6:a5fcdbf92056	1459	FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	5:b3b3370574cf	1460	FATFS_DIR* dp /* Pointer to the directory object linked to the file name */
emilmont	1:46ce1e16c870	1461	)
emilmont	1:46ce1e16c870	1462	{
mbed_official	5:b3b3370574cf	1463	FRESULT res;
mbed_official	6:a5fcdbf92056	1464	BYTE c, *dir;
emilmont	1:46ce1e16c870	1465	#if _USE_LFN
mbed_official	5:b3b3370574cf	1466	BYTE a, ord, sum;
emilmont	1:46ce1e16c870	1467	#endif
emilmont	1:46ce1e16c870	1468
mbed_official	5:b3b3370574cf	1469	res = dir_sdi(dp, 0); /* Rewind directory object */
mbed_official	5:b3b3370574cf	1470	if (res != FR_OK) return res;
emilmont	1:46ce1e16c870	1471
emilmont	1:46ce1e16c870	1472	#if _USE_LFN
mbed_official	5:b3b3370574cf	1473	ord = sum = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
emilmont	1:46ce1e16c870	1474	#endif
mbed_official	5:b3b3370574cf	1475	do {
mbed_official	5:b3b3370574cf	1476	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1477	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1478	dir = dp->dir; /* Ptr to the directory entry of current index */
mbed_official	6:a5fcdbf92056	1479	c = dir[DIR_Name];
mbed_official	5:b3b3370574cf	1480	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mbed_official	5:b3b3370574cf	1481	#if _USE_LFN /* LFN configuration */
mbed_official	6:a5fcdbf92056	1482	a = dir[DIR_Attr] & AM_MASK;
mbed_official	5:b3b3370574cf	1483	if (c == DDEM \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
mbed_official	5:b3b3370574cf	1484	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
mbed_official	5:b3b3370574cf	1485	} else {
mbed_official	5:b3b3370574cf	1486	if (a == AM_LFN) { /* An LFN entry is found */
mbed_official	5:b3b3370574cf	1487	if (dp->lfn) {
mbed_official	5:b3b3370574cf	1488	if (c & LLEF) { /* Is it start of LFN sequence? */
mbed_official	6:a5fcdbf92056	1489	sum = dir[LDIR_Chksum];
mbed_official	5:b3b3370574cf	1490	c &= ~LLEF; ord = c; /* LFN start order */
mbed_official	5:b3b3370574cf	1491	dp->lfn_idx = dp->index; /* Start index of LFN */
mbed_official	5:b3b3370574cf	1492	}
mbed_official	5:b3b3370574cf	1493	/* Check validity of the LFN entry and compare it with given name */
mbed_official	6:a5fcdbf92056	1494	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
mbed_official	5:b3b3370574cf	1495	}
mbed_official	5:b3b3370574cf	1496	} else { /* An SFN entry is found */
mbed_official	6:a5fcdbf92056	1497	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
mbed_official	6:a5fcdbf92056	1498	if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(dir, dp->fn, 11)) break; /* SFN matched? */
mbed_official	5:b3b3370574cf	1499	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
mbed_official	5:b3b3370574cf	1500	}
mbed_official	5:b3b3370574cf	1501	}
mbed_official	5:b3b3370574cf	1502	#else /* Non LFN configuration */
mbed_official	6:a5fcdbf92056	1503	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dp->fn, 11)) /* Is it a valid entry? */
mbed_official	5:b3b3370574cf	1504	break;
emilmont	1:46ce1e16c870	1505	#endif
mbed_official	5:b3b3370574cf	1506	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1507	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	1508
mbed_official	5:b3b3370574cf	1509	return res;
emilmont	1:46ce1e16c870	1510	}
emilmont	1:46ce1e16c870	1511
emilmont	1:46ce1e16c870	1512
emilmont	1:46ce1e16c870	1513
emilmont	1:46ce1e16c870	1514
emilmont	1:46ce1e16c870	1515	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1516	/* Read an object from the directory */
emilmont	1:46ce1e16c870	1517	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1518	#if _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2
emilmont	1:46ce1e16c870	1519	static
emilmont	1:46ce1e16c870	1520	FRESULT dir_read (
mbed_official	5:b3b3370574cf	1521	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1522	int vol /* Filtered by 0:file/directory or 1:volume label */
emilmont	1:46ce1e16c870	1523	)
emilmont	1:46ce1e16c870	1524	{
mbed_official	5:b3b3370574cf	1525	FRESULT res;
mbed_official	6:a5fcdbf92056	1526	BYTE a, c, *dir;
emilmont	1:46ce1e16c870	1527	#if _USE_LFN
mbed_official	5:b3b3370574cf	1528	BYTE ord = 0xFF, sum = 0xFF;
emilmont	1:46ce1e16c870	1529	#endif
emilmont	1:46ce1e16c870	1530
mbed_official	5:b3b3370574cf	1531	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	1532	while (dp->sect) {
mbed_official	5:b3b3370574cf	1533	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1534	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1535	dir = dp->dir; /* Ptr to the directory entry of current index */
mbed_official	6:a5fcdbf92056	1536	c = dir[DIR_Name];
mbed_official	5:b3b3370574cf	1537	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mbed_official	6:a5fcdbf92056	1538	a = dir[DIR_Attr] & AM_MASK;
mbed_official	5:b3b3370574cf	1539	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1540	if (c == DDEM \|\| (!_FS_RPATH && c == '.') \|\| (int)((a & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */
mbed_official	5:b3b3370574cf	1541	ord = 0xFF;
mbed_official	5:b3b3370574cf	1542	} else {
mbed_official	5:b3b3370574cf	1543	if (a == AM_LFN) { /* An LFN entry is found */
mbed_official	5:b3b3370574cf	1544	if (c & LLEF) { /* Is it start of LFN sequence? */
mbed_official	6:a5fcdbf92056	1545	sum = dir[LDIR_Chksum];
mbed_official	5:b3b3370574cf	1546	c &= ~LLEF; ord = c;
mbed_official	5:b3b3370574cf	1547	dp->lfn_idx = dp->index;
mbed_official	5:b3b3370574cf	1548	}
mbed_official	5:b3b3370574cf	1549	/* Check LFN validity and capture it */
mbed_official	6:a5fcdbf92056	1550	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
mbed_official	5:b3b3370574cf	1551	} else { /* An SFN entry is found */
mbed_official	6:a5fcdbf92056	1552	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
mbed_official	5:b3b3370574cf	1553	dp->lfn_idx = 0xFFFF; /* It has no LFN. */
mbed_official	5:b3b3370574cf	1554	break;
mbed_official	5:b3b3370574cf	1555	}
mbed_official	5:b3b3370574cf	1556	}
mbed_official	5:b3b3370574cf	1557	#else /* Non LFN configuration */
mbed_official	5:b3b3370574cf	1558	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	1559	break;
emilmont	1:46ce1e16c870	1560	#endif
mbed_official	5:b3b3370574cf	1561	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1562	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	1563	}
mbed_official	5:b3b3370574cf	1564
mbed_official	5:b3b3370574cf	1565	if (res != FR_OK) dp->sect = 0;
mbed_official	5:b3b3370574cf	1566
mbed_official	5:b3b3370574cf	1567	return res;
emilmont	1:46ce1e16c870	1568	}
mbed_official	5:b3b3370574cf	1569	#endif /* _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2 */
mbed_official	5:b3b3370574cf	1570
emilmont	1:46ce1e16c870	1571
emilmont	1:46ce1e16c870	1572
emilmont	1:46ce1e16c870	1573
emilmont	1:46ce1e16c870	1574	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1575	/* Register an object to the directory */
emilmont	1:46ce1e16c870	1576	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1577	#if !_FS_READONLY
emilmont	1:46ce1e16c870	1578	static
mbed_official	6:a5fcdbf92056	1579	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	1580	FATFS_DIR* dp /* Target directory with object name to be created */
emilmont	1:46ce1e16c870	1581	)
emilmont	1:46ce1e16c870	1582	{
mbed_official	5:b3b3370574cf	1583	FRESULT res;
mbed_official	5:b3b3370574cf	1584	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1585	UINT n, nent;
mbed_official	5:b3b3370574cf	1586	BYTE sn[12], *fn, sum;
mbed_official	5:b3b3370574cf	1587	WCHAR *lfn;
mbed_official	5:b3b3370574cf	1588
mbed_official	5:b3b3370574cf	1589
mbed_official	5:b3b3370574cf	1590	fn = dp->fn; lfn = dp->lfn;
mbed_official	5:b3b3370574cf	1591	mem_cpy(sn, fn, 12);
mbed_official	5:b3b3370574cf	1592
mbed_official	5:b3b3370574cf	1593	if (_FS_RPATH && (sn[NSFLAG] & NS_DOT)) /* Cannot create dot entry */
mbed_official	5:b3b3370574cf	1594	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1595
mbed_official	5:b3b3370574cf	1596	if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
mbed_official	5:b3b3370574cf	1597	fn[NSFLAG] = 0; dp->lfn = 0; /* Find only SFN */
mbed_official	5:b3b3370574cf	1598	for (n = 1; n < 100; n++) {
mbed_official	5:b3b3370574cf	1599	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
mbed_official	5:b3b3370574cf	1600	res = dir_find(dp); /* Check if the name collides with existing SFN */
mbed_official	5:b3b3370574cf	1601	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	1602	}
mbed_official	5:b3b3370574cf	1603	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
mbed_official	5:b3b3370574cf	1604	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
mbed_official	5:b3b3370574cf	1605	fn[NSFLAG] = sn[NSFLAG]; dp->lfn = lfn;
mbed_official	5:b3b3370574cf	1606	}
mbed_official	5:b3b3370574cf	1607
mbed_official	5:b3b3370574cf	1608	if (sn[NSFLAG] & NS_LFN) { /* When LFN is to be created, allocate entries for an SFN + LFNs. */
mbed_official	5:b3b3370574cf	1609	for (n = 0; lfn[n]; n++) ;
mbed_official	5:b3b3370574cf	1610	nent = (n + 25) / 13;
mbed_official	5:b3b3370574cf	1611	} else { /* Otherwise allocate an entry for an SFN */
mbed_official	5:b3b3370574cf	1612	nent = 1;
mbed_official	5:b3b3370574cf	1613	}
mbed_official	5:b3b3370574cf	1614	res = dir_alloc(dp, nent); /* Allocate entries */
mbed_official	5:b3b3370574cf	1615
mbed_official	5:b3b3370574cf	1616	if (res == FR_OK && --nent) { /* Set LFN entry if needed */
mbed_official	5:b3b3370574cf	1617	res = dir_sdi(dp, dp->index - nent);
mbed_official	5:b3b3370574cf	1618	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	1619	sum = sum_sfn(dp->fn); /* Checksum value of the SFN tied to the LFN */
mbed_official	5:b3b3370574cf	1620	do { /* Store LFN entries in bottom first */
mbed_official	5:b3b3370574cf	1621	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1622	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1623	fit_lfn(dp->lfn, dp->dir, (BYTE)nent, sum);
mbed_official	5:b3b3370574cf	1624	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1625	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1626	} while (res == FR_OK && --nent);
mbed_official	5:b3b3370574cf	1627	}
mbed_official	5:b3b3370574cf	1628	}
mbed_official	5:b3b3370574cf	1629	#else /* Non LFN configuration */
mbed_official	5:b3b3370574cf	1630	res = dir_alloc(dp, 1); /* Allocate an entry for SFN */
emilmont	1:46ce1e16c870	1631	#endif
emilmont	1:46ce1e16c870	1632
mbed_official	5:b3b3370574cf	1633	if (res == FR_OK) { /* Set SFN entry */
mbed_official	5:b3b3370574cf	1634	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1635	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	1636	mem_set(dp->dir, 0, SZ_DIRE); /* Clean the entry */
mbed_official	6:a5fcdbf92056	1637	mem_cpy(dp->dir, dp->fn, 11); /* Put SFN */
emilmont	1:46ce1e16c870	1638	#if _USE_LFN
mbed_official	6:a5fcdbf92056	1639	dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY \| NS_EXT); /* Put NT flag */
emilmont	1:46ce1e16c870	1640	#endif
mbed_official	5:b3b3370574cf	1641	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1642	}
mbed_official	5:b3b3370574cf	1643	}
mbed_official	5:b3b3370574cf	1644
mbed_official	5:b3b3370574cf	1645	return res;
emilmont	1:46ce1e16c870	1646	}
emilmont	1:46ce1e16c870	1647	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	1648
emilmont	1:46ce1e16c870	1649
emilmont	1:46ce1e16c870	1650
emilmont	1:46ce1e16c870	1651
emilmont	1:46ce1e16c870	1652	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1653	/* Remove an object from the directory */
emilmont	1:46ce1e16c870	1654	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1655	#if !_FS_READONLY && !_FS_MINIMIZE
emilmont	1:46ce1e16c870	1656	static
mbed_official	6:a5fcdbf92056	1657	FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */
mbed_official	5:b3b3370574cf	1658	FATFS_DIR* dp /* Directory object pointing the entry to be removed */
mbed_official	5:b3b3370574cf	1659	)
mbed_official	5:b3b3370574cf	1660	{
mbed_official	5:b3b3370574cf	1661	FRESULT res;
mbed_official	5:b3b3370574cf	1662	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1663	UINT i;
mbed_official	5:b3b3370574cf	1664
mbed_official	5:b3b3370574cf	1665	i = dp->index; /* SFN index */
mbed_official	5:b3b3370574cf	1666	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	1667	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1668	do {
mbed_official	5:b3b3370574cf	1669	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1670	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1671	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
mbed_official	6:a5fcdbf92056	1672	*dp->dir = DDEM;
mbed_official	5:b3b3370574cf	1673	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1674	if (dp->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
mbed_official	5:b3b3370574cf	1675	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1676	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	1677	if (res == FR_NO_FILE) res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	1678	}
mbed_official	5:b3b3370574cf	1679
mbed_official	5:b3b3370574cf	1680	#else /* Non LFN configuration */
mbed_official	5:b3b3370574cf	1681	res = dir_sdi(dp, dp->index);
mbed_official	5:b3b3370574cf	1682	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1683	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1684	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	1685	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
mbed_official	6:a5fcdbf92056	1686	*dp->dir = DDEM;
mbed_official	5:b3b3370574cf	1687	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1688	}
mbed_official	5:b3b3370574cf	1689	}
mbed_official	5:b3b3370574cf	1690	#endif
mbed_official	5:b3b3370574cf	1691
mbed_official	5:b3b3370574cf	1692	return res;
mbed_official	5:b3b3370574cf	1693	}
mbed_official	5:b3b3370574cf	1694	#endif /* !_FS_READONLY */
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	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1700	/* Get file information from directory entry */
mbed_official	5:b3b3370574cf	1701	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1702	#if _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2
mbed_official	5:b3b3370574cf	1703	static
mbed_official	5:b3b3370574cf	1704	void get_fileinfo ( /* No return code */
mbed_official	5:b3b3370574cf	1705	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1706	FILINFO* fno /* Pointer to the file information to be filled */
emilmont	1:46ce1e16c870	1707	)
emilmont	1:46ce1e16c870	1708	{
mbed_official	5:b3b3370574cf	1709	UINT i;
mbed_official	5:b3b3370574cf	1710	TCHAR *p, c;
mbed_official	6:a5fcdbf92056	1711	BYTE *dir;
mbed_official	5:b3b3370574cf	1712	#if _USE_LFN
mbed_official	5:b3b3370574cf	1713	WCHAR w, *lfn;
mbed_official	5:b3b3370574cf	1714	#endif
mbed_official	5:b3b3370574cf	1715
mbed_official	5:b3b3370574cf	1716	p = fno->fname;
mbed_official	5:b3b3370574cf	1717	if (dp->sect) { /* Get SFN */
mbed_official	6:a5fcdbf92056	1718	dir = dp->dir;
mbed_official	5:b3b3370574cf	1719	i = 0;
mbed_official	5:b3b3370574cf	1720	while (i < 11) { /* Copy name body and extension */
mbed_official	6:a5fcdbf92056	1721	c = (TCHAR)dir[i++];
mbed_official	5:b3b3370574cf	1722	if (c == ' ') continue; /* Skip padding spaces */
mbed_official	5:b3b3370574cf	1723	if (c == RDDEM) c = (TCHAR)DDEM; /* Restore replaced DDEM character */
mbed_official	5:b3b3370574cf	1724	if (i == 9) p++ = '.'; / Insert a . if extension is exist */
mbed_official	5:b3b3370574cf	1725	#if _USE_LFN
mbed_official	6:a5fcdbf92056	1726	if (IsUpper(c) && (dir[DIR_NTres] & (i >= 9 ? NS_EXT : NS_BODY)))
mbed_official	5:b3b3370574cf	1727	c += 0x20; /* To lower */
mbed_official	5:b3b3370574cf	1728	#if _LFN_UNICODE
mbed_official	6:a5fcdbf92056	1729	if (IsDBCS1(c) && i != 8 && i != 11 && IsDBCS2(dir[i]))
mbed_official	6:a5fcdbf92056	1730	c = c << 8 \| dir[i++];
mbed_official	5:b3b3370574cf	1731	c = ff_convert(c, 1); /* OEM -> Unicode */
mbed_official	5:b3b3370574cf	1732	if (!c) c = '?';
mbed_official	5:b3b3370574cf	1733	#endif
mbed_official	5:b3b3370574cf	1734	#endif
mbed_official	5:b3b3370574cf	1735	*p++ = c;
mbed_official	5:b3b3370574cf	1736	}
mbed_official	6:a5fcdbf92056	1737	fno->fattrib = dir[DIR_Attr]; /* Attribute */
mbed_official	6:a5fcdbf92056	1738	fno->fsize = LD_DWORD(dir + DIR_FileSize); /* Size */
mbed_official	6:a5fcdbf92056	1739	fno->fdate = LD_WORD(dir + DIR_WrtDate); /* Date */
mbed_official	6:a5fcdbf92056	1740	fno->ftime = LD_WORD(dir + DIR_WrtTime); /* Time */
mbed_official	5:b3b3370574cf	1741	}
mbed_official	5:b3b3370574cf	1742	p = 0; / Terminate SFN string by a \0 */
mbed_official	5:b3b3370574cf	1743
mbed_official	5:b3b3370574cf	1744	#if _USE_LFN
mbed_official	5:b3b3370574cf	1745	if (fno->lfname) {
mbed_official	5:b3b3370574cf	1746	i = 0; p = fno->lfname;
mbed_official	5:b3b3370574cf	1747	if (dp->sect && fno->lfsize && dp->lfn_idx != 0xFFFF) { /* Get LFN if available */
mbed_official	5:b3b3370574cf	1748	lfn = dp->lfn;
mbed_official	5:b3b3370574cf	1749	while ((w = lfn++) != 0) { / Get an LFN character */
mbed_official	5:b3b3370574cf	1750	#if !_LFN_UNICODE
mbed_official	5:b3b3370574cf	1751	w = ff_convert(w, 0); /* Unicode -> OEM */
mbed_official	5:b3b3370574cf	1752	if (!w) { i = 0; break; } /* No LFN if it could not be converted */
mbed_official	5:b3b3370574cf	1753	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
mbed_official	5:b3b3370574cf	1754	p[i++] = (TCHAR)(w >> 8);
mbed_official	5:b3b3370574cf	1755	#endif
mbed_official	5:b3b3370574cf	1756	if (i >= fno->lfsize - 1) { i = 0; break; } /* No LFN if buffer overflow */
mbed_official	5:b3b3370574cf	1757	p[i++] = (TCHAR)w;
mbed_official	5:b3b3370574cf	1758	}
mbed_official	5:b3b3370574cf	1759	}
mbed_official	5:b3b3370574cf	1760	p[i] = 0; /* Terminate LFN string by a \0 */
mbed_official	5:b3b3370574cf	1761	}
emilmont	1:46ce1e16c870	1762	#endif
mbed_official	5:b3b3370574cf	1763	}
mbed_official	5:b3b3370574cf	1764	#endif /* _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2 */
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	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1770	/* Pattern matching */
mbed_official	5:b3b3370574cf	1771	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1772	#if _USE_FIND && _FS_MINIMIZE <= 1
mbed_official	5:b3b3370574cf	1773	static
mbed_official	5:b3b3370574cf	1774	WCHAR get_achar ( /* Get a character and advances ptr 1 or 2 */
mbed_official	5:b3b3370574cf	1775	const TCHAR** ptr /* Pointer to pointer to the SBCS/DBCS/Unicode string */
mbed_official	5:b3b3370574cf	1776	)
mbed_official	5:b3b3370574cf	1777	{
mbed_official	5:b3b3370574cf	1778	WCHAR chr;
mbed_official	5:b3b3370574cf	1779
mbed_official	5:b3b3370574cf	1780	#if !_LFN_UNICODE
mbed_official	5:b3b3370574cf	1781	chr = (BYTE)(ptr)++; /* Get a byte */
mbed_official	5:b3b3370574cf	1782	if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */
mbed_official	5:b3b3370574cf	1783	if (IsDBCS1(chr) && IsDBCS2(*ptr)) / Get DBC 2nd byte if needed */
mbed_official	5:b3b3370574cf	1784	chr = chr << 8 \| (BYTE)(ptr)++;
mbed_official	5:b3b3370574cf	1785	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	1786	if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */
mbed_official	5:b3b3370574cf	1787	#endif
mbed_official	5:b3b3370574cf	1788	#else
mbed_official	5:b3b3370574cf	1789	chr = ff_wtoupper((ptr)++); /* Get a word and to upper */
mbed_official	5:b3b3370574cf	1790	#endif
mbed_official	5:b3b3370574cf	1791	return chr;
emilmont	1:46ce1e16c870	1792	}
mbed_official	5:b3b3370574cf	1793
mbed_official	5:b3b3370574cf	1794
mbed_official	5:b3b3370574cf	1795	static
mbed_official	6:a5fcdbf92056	1796	int pattern_matching ( /* 0:mismatched, 1:matched */
mbed_official	5:b3b3370574cf	1797	const TCHAR* pat, /* Matching pattern */
mbed_official	5:b3b3370574cf	1798	const TCHAR* nam, /* String to be tested */
mbed_official	5:b3b3370574cf	1799	int skip, /* Number of pre-skip chars (number of ?s) */
mbed_official	5:b3b3370574cf	1800	int inf /* Infinite search (* specified) */
mbed_official	5:b3b3370574cf	1801	)
mbed_official	5:b3b3370574cf	1802	{
mbed_official	5:b3b3370574cf	1803	const TCHAR pp, np;
mbed_official	5:b3b3370574cf	1804	WCHAR pc, nc;
mbed_official	5:b3b3370574cf	1805	int nm, nx;
mbed_official	5:b3b3370574cf	1806
mbed_official	5:b3b3370574cf	1807
mbed_official	5:b3b3370574cf	1808	while (skip--) { /* Pre-skip name chars */
mbed_official	5:b3b3370574cf	1809	if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */
mbed_official	5:b3b3370574cf	1810	}
mbed_official	5:b3b3370574cf	1811	if (!pat && inf) return 1; / (short circuit) */
mbed_official	5:b3b3370574cf	1812
mbed_official	5:b3b3370574cf	1813	do {
mbed_official	5:b3b3370574cf	1814	pp = pat; np = nam; /* Top of pattern and name to match */
mbed_official	5:b3b3370574cf	1815	for (;;) {
mbed_official	5:b3b3370574cf	1816	if (pp == '?' \|\| pp == '') { / Wildcard? */
mbed_official	5:b3b3370574cf	1817	nm = nx = 0;
mbed_official	5:b3b3370574cf	1818	do { /* Analyze the wildcard chars */
mbed_official	5:b3b3370574cf	1819	if (*pp++ == '?') nm++; else nx = 1;
mbed_official	5:b3b3370574cf	1820	} while (pp == '?' \|\| pp == '*');
mbed_official	5:b3b3370574cf	1821	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	1822	nc = np; break; / Branch mismatched */
mbed_official	5:b3b3370574cf	1823	}
mbed_official	5:b3b3370574cf	1824	pc = get_achar(&pp); /* Get a pattern char */
mbed_official	5:b3b3370574cf	1825	nc = get_achar(&np); /* Get a name char */
mbed_official	5:b3b3370574cf	1826	if (pc != nc) break; /* Branch mismatched? */
mbed_official	5:b3b3370574cf	1827	if (!pc) return 1; /* Branch matched? (matched at end of both strings) */
mbed_official	5:b3b3370574cf	1828	}
mbed_official	5:b3b3370574cf	1829	get_achar(&nam); /* nam++ */
mbed_official	5:b3b3370574cf	1830	} while (inf && nc); /* Retry until end of name if infinite search is specified */
mbed_official	5:b3b3370574cf	1831
mbed_official	5:b3b3370574cf	1832	return 0;
mbed_official	5:b3b3370574cf	1833	}
mbed_official	5:b3b3370574cf	1834	#endif /* _USE_FIND && _FS_MINIMIZE <= 1 */
emilmont	1:46ce1e16c870	1835
emilmont	1:46ce1e16c870	1836
emilmont	1:46ce1e16c870	1837
emilmont	1:46ce1e16c870	1838
emilmont	1:46ce1e16c870	1839	/-----------------------------------------------------------------------/
mbed_official	6:a5fcdbf92056	1840	/* Pick a top segment and create the object name in directory form */
emilmont	1:46ce1e16c870	1841	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1842
emilmont	1:46ce1e16c870	1843	static
mbed_official	6:a5fcdbf92056	1844	FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */
mbed_official	5:b3b3370574cf	1845	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1846	const TCHAR** path /* Pointer to pointer to the segment in the path string */
emilmont	1:46ce1e16c870	1847	)
emilmont	1:46ce1e16c870	1848	{
mbed_official	5:b3b3370574cf	1849	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1850	BYTE b, cf;
mbed_official	5:b3b3370574cf	1851	WCHAR w, *lfn;
mbed_official	5:b3b3370574cf	1852	UINT i, ni, si, di;
mbed_official	5:b3b3370574cf	1853	const TCHAR *p;
mbed_official	5:b3b3370574cf	1854
mbed_official	5:b3b3370574cf	1855	/* Create LFN in Unicode */
mbed_official	5:b3b3370574cf	1856	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
mbed_official	5:b3b3370574cf	1857	lfn = dp->lfn;
mbed_official	5:b3b3370574cf	1858	si = di = 0;
mbed_official	5:b3b3370574cf	1859	for (;;) {
mbed_official	5:b3b3370574cf	1860	w = p[si++]; /* Get a character */
mbed_official	5:b3b3370574cf	1861	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
mbed_official	5:b3b3370574cf	1862	if (di >= _MAX_LFN) /* Reject too long name */
mbed_official	5:b3b3370574cf	1863	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1864	#if !_LFN_UNICODE
mbed_official	5:b3b3370574cf	1865	w &= 0xFF;
mbed_official	5:b3b3370574cf	1866	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
mbed_official	5:b3b3370574cf	1867	b = (BYTE)p[si++]; /* Get 2nd byte */
mbed_official	5:b3b3370574cf	1868	w = (w << 8) + b; /* Create a DBC */
mbed_official	5:b3b3370574cf	1869	if (!IsDBCS2(b))
mbed_official	5:b3b3370574cf	1870	return FR_INVALID_NAME; /* Reject invalid sequence */
mbed_official	5:b3b3370574cf	1871	}
mbed_official	5:b3b3370574cf	1872	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
mbed_official	5:b3b3370574cf	1873	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
emilmont	1:46ce1e16c870	1874	#endif
mbed_official	5:b3b3370574cf	1875	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal characters for LFN */
mbed_official	5:b3b3370574cf	1876	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1877	lfn[di++] = w; /* Store the Unicode character */
mbed_official	5:b3b3370574cf	1878	}
mbed_official	5:b3b3370574cf	1879	path = &p[si]; / Return pointer to the next segment */
mbed_official	5:b3b3370574cf	1880	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
emilmont	1:46ce1e16c870	1881	#if _FS_RPATH
mbed_official	6:a5fcdbf92056	1882	if ((di == 1 && lfn[di - 1] == '.') \|\|
mbed_official	6:a5fcdbf92056	1883	(di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot entry? */
mbed_official	5:b3b3370574cf	1884	lfn[di] = 0;
mbed_official	6:a5fcdbf92056	1885	for (i = 0; i < 11; i++) /* Create dot name for SFN entry */
mbed_official	5:b3b3370574cf	1886	dp->fn[i] = (i < di) ? '.' : ' ';
mbed_official	5:b3b3370574cf	1887	dp->fn[i] = cf \| NS_DOT; /* This is a dot entry */
mbed_official	5:b3b3370574cf	1888	return FR_OK;
mbed_official	5:b3b3370574cf	1889	}
emilmont	1:46ce1e16c870	1890	#endif
mbed_official	6:a5fcdbf92056	1891	while (di) { /* Snip off trailing spaces and dots if exist */
mbed_official	5:b3b3370574cf	1892	w = lfn[di - 1];
mbed_official	5:b3b3370574cf	1893	if (w != ' ' && w != '.') break;
mbed_official	5:b3b3370574cf	1894	di--;
mbed_official	5:b3b3370574cf	1895	}
mbed_official	5:b3b3370574cf	1896	if (!di) return FR_INVALID_NAME; /* Reject nul string */
mbed_official	5:b3b3370574cf	1897	lfn[di] = 0; /* LFN is created */
mbed_official	5:b3b3370574cf	1898
mbed_official	5:b3b3370574cf	1899	/* Create SFN in directory form */
mbed_official	5:b3b3370574cf	1900	mem_set(dp->fn, ' ', 11);
mbed_official	5:b3b3370574cf	1901	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
mbed_official	5:b3b3370574cf	1902	if (si) cf \|= NS_LOSS \| NS_LFN;
mbed_official	5:b3b3370574cf	1903	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
mbed_official	5:b3b3370574cf	1904
mbed_official	5:b3b3370574cf	1905	b = i = 0; ni = 8;
mbed_official	5:b3b3370574cf	1906	for (;;) {
mbed_official	5:b3b3370574cf	1907	w = lfn[si++]; /* Get an LFN character */
mbed_official	5:b3b3370574cf	1908	if (!w) break; /* Break on end of the LFN */
mbed_official	5:b3b3370574cf	1909	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
mbed_official	5:b3b3370574cf	1910	cf \|= NS_LOSS \| NS_LFN; continue;
mbed_official	5:b3b3370574cf	1911	}
mbed_official	5:b3b3370574cf	1912
mbed_official	5:b3b3370574cf	1913	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
mbed_official	5:b3b3370574cf	1914	if (ni == 11) { /* Long extension */
mbed_official	5:b3b3370574cf	1915	cf \|= NS_LOSS \| NS_LFN; break;
mbed_official	5:b3b3370574cf	1916	}
mbed_official	5:b3b3370574cf	1917	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
mbed_official	5:b3b3370574cf	1918	if (si > di) break; /* No extension */
mbed_official	5:b3b3370574cf	1919	si = di; i = 8; ni = 11; /* Enter extension section */
mbed_official	5:b3b3370574cf	1920	b <<= 2; continue;
mbed_official	5:b3b3370574cf	1921	}
mbed_official	5:b3b3370574cf	1922
mbed_official	5:b3b3370574cf	1923	if (w >= 0x80) { /* Non ASCII character */
emilmont	1:46ce1e16c870	1924	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	1925	w = ff_convert(w, 0); /* Unicode -> OEM code */
mbed_official	5:b3b3370574cf	1926	if (w) w = ExCvt[w - 0x80]; /* Convert extended character to upper (SBCS) */
emilmont	1:46ce1e16c870	1927	#else
mbed_official	5:b3b3370574cf	1928	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
emilmont	1:46ce1e16c870	1929	#endif
mbed_official	5:b3b3370574cf	1930	cf \|= NS_LFN; /* Force create LFN entry */
mbed_official	5:b3b3370574cf	1931	}
mbed_official	5:b3b3370574cf	1932
mbed_official	6:a5fcdbf92056	1933	if (_DF1S && w >= 0x100) { /* Is this DBC? (always false at SBCS cfg) */
mbed_official	5:b3b3370574cf	1934	if (i >= ni - 1) {
mbed_official	5:b3b3370574cf	1935	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
mbed_official	5:b3b3370574cf	1936	}
mbed_official	5:b3b3370574cf	1937	dp->fn[i++] = (BYTE)(w >> 8);
mbed_official	5:b3b3370574cf	1938	} else { /* SBC */
mbed_official	5:b3b3370574cf	1939	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal characters for SFN */
mbed_official	5:b3b3370574cf	1940	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
mbed_official	5:b3b3370574cf	1941	} else {
mbed_official	5:b3b3370574cf	1942	if (IsUpper(w)) { /* ASCII large capital */
mbed_official	5:b3b3370574cf	1943	b \|= 2;
mbed_official	5:b3b3370574cf	1944	} else {
mbed_official	5:b3b3370574cf	1945	if (IsLower(w)) { /* ASCII small capital */
mbed_official	5:b3b3370574cf	1946	b \|= 1; w -= 0x20;
mbed_official	5:b3b3370574cf	1947	}
mbed_official	5:b3b3370574cf	1948	}
mbed_official	5:b3b3370574cf	1949	}
mbed_official	5:b3b3370574cf	1950	}
mbed_official	5:b3b3370574cf	1951	dp->fn[i++] = (BYTE)w;
mbed_official	5:b3b3370574cf	1952	}
mbed_official	5:b3b3370574cf	1953
mbed_official	6:a5fcdbf92056	1954	if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */
mbed_official	5:b3b3370574cf	1955
mbed_official	5:b3b3370574cf	1956	if (ni == 8) b <<= 2;
mbed_official	5:b3b3370574cf	1957	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
mbed_official	5:b3b3370574cf	1958	cf \|= NS_LFN;
mbed_official	5:b3b3370574cf	1959	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */
mbed_official	5:b3b3370574cf	1960	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
mbed_official	5:b3b3370574cf	1961	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
mbed_official	5:b3b3370574cf	1962	}
mbed_official	5:b3b3370574cf	1963
mbed_official	5:b3b3370574cf	1964	dp->fn[NSFLAG] = cf; /* SFN is created */
mbed_official	5:b3b3370574cf	1965
mbed_official	5:b3b3370574cf	1966	return FR_OK;
mbed_official	5:b3b3370574cf	1967
mbed_official	5:b3b3370574cf	1968
mbed_official	5:b3b3370574cf	1969	#else /* Non-LFN configuration */
mbed_official	5:b3b3370574cf	1970	BYTE b, c, d, *sfn;
mbed_official	5:b3b3370574cf	1971	UINT ni, si, i;
mbed_official	5:b3b3370574cf	1972	const char *p;
mbed_official	5:b3b3370574cf	1973
mbed_official	5:b3b3370574cf	1974	/* Create file name in directory form */
mbed_official	6:a5fcdbf92056	1975	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Skip duplicated separator */
mbed_official	5:b3b3370574cf	1976	sfn = dp->fn;
mbed_official	5:b3b3370574cf	1977	mem_set(sfn, ' ', 11);
mbed_official	5:b3b3370574cf	1978	si = i = b = 0; ni = 8;
emilmont	1:46ce1e16c870	1979	#if _FS_RPATH
mbed_official	5:b3b3370574cf	1980	if (p[si] == '.') { /* Is this a dot entry? */
mbed_official	5:b3b3370574cf	1981	for (;;) {
mbed_official	5:b3b3370574cf	1982	c = (BYTE)p[si++];
mbed_official	5:b3b3370574cf	1983	if (c != '.' \|\| si >= 3) break;
mbed_official	5:b3b3370574cf	1984	sfn[i++] = c;
mbed_official	5:b3b3370574cf	1985	}
mbed_official	5:b3b3370574cf	1986	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1987	path = &p[si]; / Return pointer to the next segment */
mbed_official	5:b3b3370574cf	1988	sfn[NSFLAG] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
mbed_official	5:b3b3370574cf	1989	return FR_OK;
mbed_official	5:b3b3370574cf	1990	}
emilmont	1:46ce1e16c870	1991	#endif
mbed_official	5:b3b3370574cf	1992	for (;;) {
mbed_official	5:b3b3370574cf	1993	c = (BYTE)p[si++];
mbed_official	5:b3b3370574cf	1994	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
mbed_official	5:b3b3370574cf	1995	if (c == '.' \|\| i >= ni) {
mbed_official	5:b3b3370574cf	1996	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1997	i = 8; ni = 11;
mbed_official	5:b3b3370574cf	1998	b <<= 2; continue;
mbed_official	5:b3b3370574cf	1999	}
mbed_official	5:b3b3370574cf	2000	if (c >= 0x80) { /* Extended character? */
mbed_official	5:b3b3370574cf	2001	b \|= 3; /* Eliminate NT flag */
emilmont	1:46ce1e16c870	2002	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	2003	c = ExCvt[c - 0x80]; /* To upper extended characters (SBCS cfg) */
emilmont	1:46ce1e16c870	2004	#else
mbed_official	5:b3b3370574cf	2005	#if !_DF1S
mbed_official	5:b3b3370574cf	2006	return FR_INVALID_NAME; /* Reject extended characters (ASCII cfg) */
emilmont	1:46ce1e16c870	2007	#endif
emilmont	1:46ce1e16c870	2008	#endif
mbed_official	5:b3b3370574cf	2009	}
mbed_official	6:a5fcdbf92056	2010	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false at SBCS cfg.) */
mbed_official	5:b3b3370574cf	2011	d = (BYTE)p[si++]; /* Get 2nd byte */
mbed_official	5:b3b3370574cf	2012	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
mbed_official	5:b3b3370574cf	2013	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	2014	sfn[i++] = c;
mbed_official	5:b3b3370574cf	2015	sfn[i++] = d;
mbed_official	5:b3b3370574cf	2016	} else { /* SBC */
mbed_official	5:b3b3370574cf	2017	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
mbed_official	5:b3b3370574cf	2018	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	2019	if (IsUpper(c)) { /* ASCII large capital? */
mbed_official	5:b3b3370574cf	2020	b \|= 2;
mbed_official	5:b3b3370574cf	2021	} else {
mbed_official	5:b3b3370574cf	2022	if (IsLower(c)) { /* ASCII small capital? */
mbed_official	5:b3b3370574cf	2023	b \|= 1; c -= 0x20;
mbed_official	5:b3b3370574cf	2024	}
mbed_official	5:b3b3370574cf	2025	}
mbed_official	5:b3b3370574cf	2026	sfn[i++] = c;
mbed_official	5:b3b3370574cf	2027	}
mbed_official	5:b3b3370574cf	2028	}
mbed_official	5:b3b3370574cf	2029	path = &p[si]; / Return pointer to the next segment */
mbed_official	5:b3b3370574cf	2030	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
mbed_official	5:b3b3370574cf	2031
mbed_official	5:b3b3370574cf	2032	if (!i) return FR_INVALID_NAME; /* Reject nul string */
mbed_official	5:b3b3370574cf	2033	if (sfn[0] == DDEM) sfn[0] = RDDEM; /* When first character collides with DDEM, replace it with RDDEM */
mbed_official	5:b3b3370574cf	2034
mbed_official	5:b3b3370574cf	2035	if (ni == 8) b <<= 2;
mbed_official	5:b3b3370574cf	2036	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
mbed_official	5:b3b3370574cf	2037	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
mbed_official	5:b3b3370574cf	2038
mbed_official	5:b3b3370574cf	2039	sfn[NSFLAG] = c; /* Store NT flag, File name is created */
mbed_official	5:b3b3370574cf	2040
mbed_official	5:b3b3370574cf	2041	return FR_OK;
emilmont	1:46ce1e16c870	2042	#endif
emilmont	1:46ce1e16c870	2043	}
emilmont	1:46ce1e16c870	2044
emilmont	1:46ce1e16c870	2045
emilmont	1:46ce1e16c870	2046
emilmont	1:46ce1e16c870	2047
emilmont	1:46ce1e16c870	2048	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2049	/* Follow a file path */
emilmont	1:46ce1e16c870	2050	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2051
emilmont	1:46ce1e16c870	2052	static
mbed_official	5:b3b3370574cf	2053	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
mbed_official	5:b3b3370574cf	2054	FATFS_DIR* dp, /* Directory object to return last directory and found object */
mbed_official	5:b3b3370574cf	2055	const TCHAR* path /* Full-path string to find a file or directory */
emilmont	1:46ce1e16c870	2056	)
emilmont	1:46ce1e16c870	2057	{
mbed_official	5:b3b3370574cf	2058	FRESULT res;
mbed_official	6:a5fcdbf92056	2059	BYTE *dir, ns;
emilmont	1:46ce1e16c870	2060
emilmont	1:46ce1e16c870	2061
emilmont	1:46ce1e16c870	2062	#if _FS_RPATH
mbed_official	5:b3b3370574cf	2063	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
mbed_official	5:b3b3370574cf	2064	path++; dp->sclust = 0; /* Strip it and start from the root directory */
mbed_official	5:b3b3370574cf	2065	} else { /* No heading separator */
mbed_official	5:b3b3370574cf	2066	dp->sclust = dp->fs->cdir; /* Start from the current directory */
mbed_official	5:b3b3370574cf	2067	}
emilmont	1:46ce1e16c870	2068	#else
mbed_official	5:b3b3370574cf	2069	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
mbed_official	5:b3b3370574cf	2070	path++;
mbed_official	5:b3b3370574cf	2071	dp->sclust = 0; /* Always start from the root directory */
emilmont	1:46ce1e16c870	2072	#endif
emilmont	1:46ce1e16c870	2073
mbed_official	5:b3b3370574cf	2074	if ((UINT)path < ' ') { / Null path name is the origin directory itself */
mbed_official	5:b3b3370574cf	2075	res = dir_sdi(dp, 0);
mbed_official	6:a5fcdbf92056	2076	dp->dir = 0;
mbed_official	5:b3b3370574cf	2077	} else { /* Follow path */
mbed_official	5:b3b3370574cf	2078	for (;;) {
mbed_official	5:b3b3370574cf	2079	res = create_name(dp, &path); /* Get a segment name of the path */
mbed_official	5:b3b3370574cf	2080	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	2081	res = dir_find(dp); /* Find an object with the sagment name */
mbed_official	5:b3b3370574cf	2082	ns = dp->fn[NSFLAG];
mbed_official	5:b3b3370574cf	2083	if (res != FR_OK) { /* Failed to find the object */
mbed_official	5:b3b3370574cf	2084	if (res == FR_NO_FILE) { /* Object is not found */
mbed_official	5:b3b3370574cf	2085	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, */
mbed_official	6:a5fcdbf92056	2086	dp->sclust = 0; dp->dir = 0; /* it is the root directory and stay there */
mbed_official	5:b3b3370574cf	2087	if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */
mbed_official	5:b3b3370574cf	2088	res = FR_OK; /* Ended at the root directroy. Function completed. */
mbed_official	5:b3b3370574cf	2089	} else { /* Could not find the object */
mbed_official	5:b3b3370574cf	2090	if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */
mbed_official	5:b3b3370574cf	2091	}
mbed_official	5:b3b3370574cf	2092	}
mbed_official	5:b3b3370574cf	2093	break;
mbed_official	5:b3b3370574cf	2094	}
mbed_official	5:b3b3370574cf	2095	if (ns & NS_LAST) break; /* Last segment matched. Function completed. */
mbed_official	6:a5fcdbf92056	2096	dir = dp->dir; /* Follow the sub-directory */
mbed_official	6:a5fcdbf92056	2097	if (!(dir[DIR_Attr] & AM_DIR)) { /* It is not a sub-directory and cannot follow */
mbed_official	5:b3b3370574cf	2098	res = FR_NO_PATH; break;
mbed_official	5:b3b3370574cf	2099	}
mbed_official	6:a5fcdbf92056	2100	dp->sclust = ld_clust(dp->fs, dir);
mbed_official	5:b3b3370574cf	2101	}
mbed_official	5:b3b3370574cf	2102	}
mbed_official	5:b3b3370574cf	2103
mbed_official	5:b3b3370574cf	2104	return res;
emilmont	1:46ce1e16c870	2105	}
emilmont	1:46ce1e16c870	2106
emilmont	1:46ce1e16c870	2107
emilmont	1:46ce1e16c870	2108
emilmont	1:46ce1e16c870	2109
emilmont	1:46ce1e16c870	2110	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2111	/* Get logical drive number from path name */
emilmont	1:46ce1e16c870	2112	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2113
emilmont	1:46ce1e16c870	2114	static
mbed_official	5:b3b3370574cf	2115	int get_ldnumber ( /* Returns logical drive number (-1:invalid drive) */
mbed_official	5:b3b3370574cf	2116	const TCHAR** path /* Pointer to pointer to the path name */
emilmont	1:46ce1e16c870	2117	)
emilmont	1:46ce1e16c870	2118	{
mbed_official	5:b3b3370574cf	2119	const TCHAR tp, tt;
mbed_official	5:b3b3370574cf	2120	UINT i;
mbed_official	5:b3b3370574cf	2121	int vol = -1;
mbed_official	5:b3b3370574cf	2122	#if _STR_VOLUME_ID /* Find string drive id */
mbed_official	5:b3b3370574cf	2123	static const char* const str[] = {_VOLUME_STRS};
mbed_official	5:b3b3370574cf	2124	const char *sp;
mbed_official	5:b3b3370574cf	2125	char c;
mbed_official	5:b3b3370574cf	2126	TCHAR tc;
mbed_official	5:b3b3370574cf	2127	#endif
mbed_official	5:b3b3370574cf	2128
mbed_official	5:b3b3370574cf	2129
mbed_official	5:b3b3370574cf	2130	if (path) { / If the pointer is not a null */
mbed_official	5:b3b3370574cf	2131	for (tt = path; (UINT)tt >= (_USE_LFN ? ' ' : '!') && tt != ':'; tt++) ; / Find ':' in the path */
vnemera	8:0345cdc7efa5	2132
mbed_official	5:b3b3370574cf	2133	if (tt == ':') { / If a ':' is exist in the path name */
mbed_official	5:b3b3370574cf	2134	tp = *path;
mbed_official	5:b3b3370574cf	2135	i = *tp++ - '0';
mbed_official	5:b3b3370574cf	2136	if (i < 10 && tp == tt) { /* Is there a numeric drive id? */
mbed_official	5:b3b3370574cf	2137	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
mbed_official	5:b3b3370574cf	2138	vol = (int)i;
mbed_official	5:b3b3370574cf	2139	*path = ++tt;
mbed_official	5:b3b3370574cf	2140	}
mbed_official	5:b3b3370574cf	2141	}
mbed_official	5:b3b3370574cf	2142	#if _STR_VOLUME_ID
mbed_official	5:b3b3370574cf	2143	else { /* No numeric drive number, find string drive id */
mbed_official	5:b3b3370574cf	2144	i = 0; tt++;
mbed_official	5:b3b3370574cf	2145	do {
mbed_official	5:b3b3370574cf	2146	sp = str[i]; tp = *path;
mbed_official	5:b3b3370574cf	2147	do { /* Compare a string drive id with path name */
mbed_official	5:b3b3370574cf	2148	c = sp++; tc = tp++;
mbed_official	5:b3b3370574cf	2149	if (IsLower(tc)) tc -= 0x20;
mbed_official	5:b3b3370574cf	2150	} while (c && (TCHAR)c == tc);
mbed_official	5:b3b3370574cf	2151	} while ((c \|\| tp != tt) && ++i < _VOLUMES); /* Repeat for each id until pattern match */
mbed_official	5:b3b3370574cf	2152	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
mbed_official	5:b3b3370574cf	2153	vol = (int)i;
mbed_official	5:b3b3370574cf	2154	*path = tt;
mbed_official	5:b3b3370574cf	2155	}
mbed_official	5:b3b3370574cf	2156	}
mbed_official	5:b3b3370574cf	2157	#endif
mbed_official	5:b3b3370574cf	2158	return vol;
mbed_official	5:b3b3370574cf	2159	}
mbed_official	5:b3b3370574cf	2160	#if _FS_RPATH && _VOLUMES >= 2
mbed_official	5:b3b3370574cf	2161	vol = CurrVol; /* Current drive */
mbed_official	5:b3b3370574cf	2162	#else
mbed_official	5:b3b3370574cf	2163	vol = 0; /* Drive 0 */
mbed_official	5:b3b3370574cf	2164	#endif
mbed_official	5:b3b3370574cf	2165	}
mbed_official	5:b3b3370574cf	2166	return vol;
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
mbed_official	5:b3b3370574cf	2172	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2173	/* Load a sector and check if it is an FAT boot sector */
mbed_official	5:b3b3370574cf	2174	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2175
mbed_official	5:b3b3370574cf	2176	static
mbed_official	6:a5fcdbf92056	2177	BYTE check_fs ( /* 0:Valid FAT-BS, 1:Valid BS but not FAT, 2:Not a BS, 3:Disk error */
mbed_official	5:b3b3370574cf	2178	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	2179	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
mbed_official	5:b3b3370574cf	2180	)
mbed_official	5:b3b3370574cf	2181	{
mbed_official	5:b3b3370574cf	2182	fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */
mbed_official	5:b3b3370574cf	2183	if (move_window(fs, sect) != FR_OK) /* Load boot record */
mbed_official	5:b3b3370574cf	2184	return 3;
mbed_official	5:b3b3370574cf	2185
mbed_official	5:b3b3370574cf	2186	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	2187	return 2;
mbed_official	5:b3b3370574cf	2188
mbed_official	5:b3b3370574cf	2189	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
mbed_official	5:b3b3370574cf	2190	return 0;
mbed_official	5:b3b3370574cf	2191	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
mbed_official	5:b3b3370574cf	2192	return 0;
mbed_official	5:b3b3370574cf	2193
mbed_official	5:b3b3370574cf	2194	return 1;
emilmont	1:46ce1e16c870	2195	}
emilmont	1:46ce1e16c870	2196
emilmont	1:46ce1e16c870	2197
emilmont	1:46ce1e16c870	2198
emilmont	1:46ce1e16c870	2199
emilmont	1:46ce1e16c870	2200	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2201	/* Find logical drive and check if the volume is mounted */
emilmont	1:46ce1e16c870	2202	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2203
emilmont	1:46ce1e16c870	2204	static
mbed_official	5:b3b3370574cf	2205	FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */
mbed_official	5:b3b3370574cf	2206	FATFS** rfs, /* Pointer to pointer to the found file system object */
mbed_official	5:b3b3370574cf	2207	const TCHAR** path, /* Pointer to pointer to the path name (drive number) */
mbed_official	5:b3b3370574cf	2208	BYTE wmode /* !=0: Check write protection for write access */
emilmont	1:46ce1e16c870	2209	)
emilmont	1:46ce1e16c870	2210	{
mbed_official	5:b3b3370574cf	2211	BYTE fmt, *pt;
mbed_official	5:b3b3370574cf	2212	int vol;
mbed_official	5:b3b3370574cf	2213	DSTATUS stat;
mbed_official	5:b3b3370574cf	2214	DWORD bsect, fasize, tsect, sysect, nclst, szbfat, br[4];
mbed_official	5:b3b3370574cf	2215	WORD nrsv;
mbed_official	5:b3b3370574cf	2216	FATFS *fs;
mbed_official	5:b3b3370574cf	2217	UINT i;
mbed_official	5:b3b3370574cf	2218
mbed_official	5:b3b3370574cf	2219
mbed_official	5:b3b3370574cf	2220	/* Get logical drive number from the path name */
mbed_official	5:b3b3370574cf	2221	*rfs = 0;
mbed_official	5:b3b3370574cf	2222	vol = get_ldnumber(path);
mbed_official	5:b3b3370574cf	2223	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	2224
mbed_official	5:b3b3370574cf	2225	/* Check if the file system object is valid or not */
mbed_official	5:b3b3370574cf	2226	fs = FatFs[vol]; /* Get pointer to the file system object */
mbed_official	5:b3b3370574cf	2227	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
mbed_official	5:b3b3370574cf	2228	ENTER_FF(fs); /* Lock the volume */
mbed_official	5:b3b3370574cf	2229	rfs = fs; / Return pointer to the file system object */
mbed_official	5:b3b3370574cf	2230
vnemera	8:0345cdc7efa5	2231	//printf("\n&rfs = %u", (fs->fs_type));
vnemera	8:0345cdc7efa5	2232	//aa=20;
vnemera	8:0345cdc7efa5	2233	//bb=fs->fs_type;
vnemera	8:0345cdc7efa5	2234
mbed_official	5:b3b3370574cf	2235	if (fs->fs_type) { /* If the volume has been mounted */
mbed_official	5:b3b3370574cf	2236	stat = disk_status(fs->drv);
vnemera	8:0345cdc7efa5	2237
mbed_official	5:b3b3370574cf	2238	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */
mbed_official	5:b3b3370574cf	2239	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
mbed_official	5:b3b3370574cf	2240	return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	2241	return FR_OK; /* The file system object is valid */
mbed_official	5:b3b3370574cf	2242	}
mbed_official	5:b3b3370574cf	2243	}
mbed_official	5:b3b3370574cf	2244
mbed_official	5:b3b3370574cf	2245	/* The file system object is not valid. */
mbed_official	5:b3b3370574cf	2246	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
mbed_official	5:b3b3370574cf	2247
mbed_official	5:b3b3370574cf	2248	fs->fs_type = 0; /* Clear the file system object */
mbed_official	5:b3b3370574cf	2249	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
mbed_official	5:b3b3370574cf	2250	stat = disk_initialize(fs->drv); /* Initialize the physical drive */
vnemera	8:0345cdc7efa5	2251
mbed_official	5:b3b3370574cf	2252	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
mbed_official	5:b3b3370574cf	2253	return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
mbed_official	5:b3b3370574cf	2254	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
mbed_official	5:b3b3370574cf	2255	return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	2256	#if _MAX_SS != _MIN_SS /* Get sector size (multiple sector size cfg only) */
mbed_official	5:b3b3370574cf	2257	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
mbed_official	5:b3b3370574cf	2258	\|\| SS(fs) < _MIN_SS \|\| SS(fs) > _MAX_SS) return FR_DISK_ERR;
emilmont	1:46ce1e16c870	2259	#endif
mbed_official	5:b3b3370574cf	2260	/* Find an FAT partition on the drive. Supports only generic partitioning, FDISK and SFD. */
mbed_official	5:b3b3370574cf	2261	bsect = 0;
mbed_official	5:b3b3370574cf	2262	fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT boot sector as SFD */
mbed_official	5:b3b3370574cf	2263	if (fmt == 1 \|\| (!fmt && (LD2PT(vol)))) { /* Not an FAT boot sector or forced partition number */
mbed_official	5:b3b3370574cf	2264	for (i = 0; i < 4; i++) { /* Get partition offset */
mbed_official	5:b3b3370574cf	2265	pt = fs->win + MBR_Table + i * SZ_PTE;
mbed_official	5:b3b3370574cf	2266	br[i] = pt[4] ? LD_DWORD(&pt[8]) : 0;
mbed_official	5:b3b3370574cf	2267	}
mbed_official	5:b3b3370574cf	2268	i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */
mbed_official	5:b3b3370574cf	2269	if (i) i--;
mbed_official	5:b3b3370574cf	2270	do { /* Find an FAT volume */
mbed_official	5:b3b3370574cf	2271	bsect = br[i];
mbed_official	5:b3b3370574cf	2272	fmt = bsect ? check_fs(fs, bsect) : 2; /* Check the partition */
mbed_official	5:b3b3370574cf	2273	} while (!LD2PT(vol) && fmt && ++i < 4);
mbed_official	5:b3b3370574cf	2274	}
mbed_official	5:b3b3370574cf	2275	if (fmt == 3) return FR_DISK_ERR; /* An error occured in the disk I/O layer */
mbed_official	5:b3b3370574cf	2276	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
mbed_official	5:b3b3370574cf	2277
mbed_official	5:b3b3370574cf	2278	/* An FAT volume is found. Following code initializes the file system object */
mbed_official	5:b3b3370574cf	2279
mbed_official	5:b3b3370574cf	2280	if (LD_WORD(fs->win + BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
mbed_official	5:b3b3370574cf	2281	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2282
mbed_official	5:b3b3370574cf	2283	fasize = LD_WORD(fs->win + BPB_FATSz16); /* Number of sectors per FAT */
mbed_official	5:b3b3370574cf	2284	if (!fasize) fasize = LD_DWORD(fs->win + BPB_FATSz32);
mbed_official	5:b3b3370574cf	2285	fs->fsize = fasize;
mbed_official	5:b3b3370574cf	2286
mbed_official	5:b3b3370574cf	2287	fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */
mbed_official	5:b3b3370574cf	2288	if (fs->n_fats != 1 && fs->n_fats != 2) /* (Must be 1 or 2) */
mbed_official	5:b3b3370574cf	2289	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2290	fasize = fs->n_fats; / Number of sectors for FAT area */
mbed_official	5:b3b3370574cf	2291
mbed_official	5:b3b3370574cf	2292	fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
mbed_official	5:b3b3370574cf	2293	if (!fs->csize \|\| (fs->csize & (fs->csize - 1))) /* (Must be power of 2) */
mbed_official	5:b3b3370574cf	2294	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2295
mbed_official	5:b3b3370574cf	2296	fs->n_rootdir = LD_WORD(fs->win + BPB_RootEntCnt); /* Number of root directory entries */
mbed_official	5:b3b3370574cf	2297	if (fs->n_rootdir % (SS(fs) / SZ_DIRE)) /* (Must be sector aligned) */
mbed_official	5:b3b3370574cf	2298	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2299
mbed_official	5:b3b3370574cf	2300	tsect = LD_WORD(fs->win + BPB_TotSec16); /* Number of sectors on the volume */
mbed_official	5:b3b3370574cf	2301	if (!tsect) tsect = LD_DWORD(fs->win + BPB_TotSec32);
mbed_official	5:b3b3370574cf	2302
mbed_official	5:b3b3370574cf	2303	nrsv = LD_WORD(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */
mbed_official	5:b3b3370574cf	2304	if (!nrsv) return FR_NO_FILESYSTEM; /* (Must not be 0) */
mbed_official	5:b3b3370574cf	2305
mbed_official	5:b3b3370574cf	2306	/* Determine the FAT sub type */
mbed_official	5:b3b3370574cf	2307	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIRE); /* RSV + FAT + FATFS_DIR */
mbed_official	5:b3b3370574cf	2308	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mbed_official	5:b3b3370574cf	2309	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
mbed_official	5:b3b3370574cf	2310	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mbed_official	5:b3b3370574cf	2311	fmt = FS_FAT12;
mbed_official	5:b3b3370574cf	2312	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
mbed_official	5:b3b3370574cf	2313	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
mbed_official	5:b3b3370574cf	2314
mbed_official	5:b3b3370574cf	2315	/* Boundaries and Limits */
mbed_official	5:b3b3370574cf	2316	fs->n_fatent = nclst + 2; /* Number of FAT entries */
mbed_official	5:b3b3370574cf	2317	fs->volbase = bsect; /* Volume start sector */
mbed_official	5:b3b3370574cf	2318	fs->fatbase = bsect + nrsv; /* FAT start sector */
mbed_official	5:b3b3370574cf	2319	fs->database = bsect + sysect; /* Data start sector */
mbed_official	5:b3b3370574cf	2320	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	2321	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
mbed_official	5:b3b3370574cf	2322	fs->dirbase = LD_DWORD(fs->win + BPB_RootClus); /* Root directory start cluster */
mbed_official	5:b3b3370574cf	2323	szbfat = fs->n_fatent * 4; /* (Needed FAT size) */
mbed_official	5:b3b3370574cf	2324	} else {
mbed_official	5:b3b3370574cf	2325	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
mbed_official	5:b3b3370574cf	2326	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
mbed_official	5:b3b3370574cf	2327	szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */
mbed_official	5:b3b3370574cf	2328	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
mbed_official	5:b3b3370574cf	2329	}
mbed_official	5:b3b3370574cf	2330	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than the size needed) */
mbed_official	5:b3b3370574cf	2331	return FR_NO_FILESYSTEM;
emilmont	1:46ce1e16c870	2332
emilmont	1:46ce1e16c870	2333	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2334	/* Initialize cluster allocation information */
mbed_official	5:b3b3370574cf	2335	fs->last_clust = fs->free_clust = 0xFFFFFFFF;
mbed_official	5:b3b3370574cf	2336
mbed_official	5:b3b3370574cf	2337	/* Get fsinfo if available */
mbed_official	5:b3b3370574cf	2338	fs->fsi_flag = 0x80;
mbed_official	5:b3b3370574cf	2339	#if (_FS_NOFSINFO & 3) != 3
mbed_official	6:a5fcdbf92056	2340	if (fmt == FS_FAT32 /* Enable FSINFO only if FAT32 and BPB_FSInfo == 1 */
mbed_official	5:b3b3370574cf	2341	&& LD_WORD(fs->win + BPB_FSInfo) == 1
mbed_official	5:b3b3370574cf	2342	&& move_window(fs, bsect + 1) == FR_OK)
mbed_official	5:b3b3370574cf	2343	{
mbed_official	5:b3b3370574cf	2344	fs->fsi_flag = 0;
mbed_official	5:b3b3370574cf	2345	if (LD_WORD(fs->win + BS_55AA) == 0xAA55 /* Load FSINFO data if available */
mbed_official	5:b3b3370574cf	2346	&& LD_DWORD(fs->win + FSI_LeadSig) == 0x41615252
mbed_official	5:b3b3370574cf	2347	&& LD_DWORD(fs->win + FSI_StrucSig) == 0x61417272)
mbed_official	5:b3b3370574cf	2348	{
mbed_official	5:b3b3370574cf	2349	#if (_FS_NOFSINFO & 1) == 0
mbed_official	5:b3b3370574cf	2350	fs->free_clust = LD_DWORD(fs->win + FSI_Free_Count);
emilmont	1:46ce1e16c870	2351	#endif
mbed_official	5:b3b3370574cf	2352	#if (_FS_NOFSINFO & 2) == 0
mbed_official	5:b3b3370574cf	2353	fs->last_clust = LD_DWORD(fs->win + FSI_Nxt_Free);
mbed_official	5:b3b3370574cf	2354	#endif
mbed_official	5:b3b3370574cf	2355	}
mbed_official	5:b3b3370574cf	2356	}
mbed_official	5:b3b3370574cf	2357	#endif
mbed_official	5:b3b3370574cf	2358	#endif
mbed_official	5:b3b3370574cf	2359	fs->fs_type = fmt; /* FAT sub-type */
mbed_official	5:b3b3370574cf	2360	fs->id = ++Fsid; /* File system mount ID */
emilmont	1:46ce1e16c870	2361	#if _FS_RPATH
mbed_official	5:b3b3370574cf	2362	fs->cdir = 0; /* Set current directory to root */
emilmont	1:46ce1e16c870	2363	#endif
mbed_official	5:b3b3370574cf	2364	#if _FS_LOCK /* Clear file lock semaphores */
mbed_official	5:b3b3370574cf	2365	clear_lock(fs);
emilmont	1:46ce1e16c870	2366	#endif
emilmont	1:46ce1e16c870	2367
mbed_official	5:b3b3370574cf	2368	return FR_OK;
emilmont	1:46ce1e16c870	2369	}
emilmont	1:46ce1e16c870	2370
emilmont	1:46ce1e16c870	2371
emilmont	1:46ce1e16c870	2372
emilmont	1:46ce1e16c870	2373
emilmont	1:46ce1e16c870	2374	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2375	/* Check if the file/directory object is valid or not */
emilmont	1:46ce1e16c870	2376	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2377
emilmont	1:46ce1e16c870	2378	static
mbed_official	5:b3b3370574cf	2379	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
mbed_official	5:b3b3370574cf	2380	void* obj /* Pointer to the object FIL/FATFS_DIR to check validity */
emilmont	1:46ce1e16c870	2381	)
emilmont	1:46ce1e16c870	2382	{
mbed_official	5:b3b3370574cf	2383	FIL fil = (FIL)obj; /* Assuming offset of .fs and .id in the FIL/FATFS_DIR structure is identical */
mbed_official	5:b3b3370574cf	2384
mbed_official	5:b3b3370574cf	2385
mbed_official	6:a5fcdbf92056	2386	if (!fil \|\| !fil->fs \|\| !fil->fs->fs_type \|\| fil->fs->id != fil->id \|\| (disk_status(fil->fs->drv) & STA_NOINIT))
mbed_official	5:b3b3370574cf	2387	return FR_INVALID_OBJECT;
mbed_official	5:b3b3370574cf	2388
mbed_official	5:b3b3370574cf	2389	ENTER_FF(fil->fs); /* Lock file system */
mbed_official	5:b3b3370574cf	2390
mbed_official	5:b3b3370574cf	2391	return FR_OK;
emilmont	1:46ce1e16c870	2392	}
emilmont	1:46ce1e16c870	2393
emilmont	1:46ce1e16c870	2394
emilmont	1:46ce1e16c870	2395
emilmont	1:46ce1e16c870	2396
emilmont	1:46ce1e16c870	2397	/*--------------------------------------------------------------------------
emilmont	1:46ce1e16c870	2398
emilmont	1:46ce1e16c870	2399	Public Functions
emilmont	1:46ce1e16c870	2400
mbed_official	6:a5fcdbf92056	2401	---------------------------------------------------------------------------*/
emilmont	1:46ce1e16c870	2402
emilmont	1:46ce1e16c870	2403
emilmont	1:46ce1e16c870	2404
emilmont	1:46ce1e16c870	2405	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2406	/* Mount/Unmount a Logical Drive */
emilmont	1:46ce1e16c870	2407	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2408
emilmont	1:46ce1e16c870	2409	FRESULT f_mount (
mbed_official	5:b3b3370574cf	2410	FATFS* fs, /* Pointer to the file system object (NULL:unmount)*/
mbed_official	5:b3b3370574cf	2411	const TCHAR* path, /* Logical drive number to be mounted/unmounted */
mbed_official	5:b3b3370574cf	2412	BYTE opt /* 0:Do not mount (delayed mount), 1:Mount immediately */
emilmont	1:46ce1e16c870	2413	)
emilmont	1:46ce1e16c870	2414	{
mbed_official	5:b3b3370574cf	2415	FATFS *cfs;
mbed_official	5:b3b3370574cf	2416	int vol;
mbed_official	5:b3b3370574cf	2417	FRESULT res;
mbed_official	5:b3b3370574cf	2418	const TCHAR *rp = path;
mbed_official	5:b3b3370574cf	2419
mbed_official	5:b3b3370574cf	2420	vol = get_ldnumber(&rp);
mbed_official	5:b3b3370574cf	2421	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	2422	cfs = FatFs[vol]; /* Pointer to fs object */
mbed_official	5:b3b3370574cf	2423
mbed_official	5:b3b3370574cf	2424	if (cfs) {
emilmont	1:46ce1e16c870	2425	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2426	clear_lock(cfs);
emilmont	1:46ce1e16c870	2427	#endif
mbed_official	5:b3b3370574cf	2428	#if _FS_REENTRANT /* Discard sync object of the current volume */
vnemera	8:0345cdc7efa5	2429	if (!ff_del_syncobj(cfs->sobj)) {
vnemera	8:0345cdc7efa5	2430	return FR_INT_ERR;
vnemera	8:0345cdc7efa5	2431	}
emilmont	1:46ce1e16c870	2432	#endif
mbed_official	5:b3b3370574cf	2433	cfs->fs_type = 0; /* Clear old fs object */
mbed_official	5:b3b3370574cf	2434	}
mbed_official	5:b3b3370574cf	2435	if (fs) {
mbed_official	5:b3b3370574cf	2436	fs->fs_type = 0; /* Clear new fs object */
mbed_official	5:b3b3370574cf	2437	#if _FS_REENTRANT /* Create sync object for the new volume */
mbed_official	5:b3b3370574cf	2438	if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR;
emilmont	1:46ce1e16c870	2439	#endif
mbed_official	5:b3b3370574cf	2440	}
vnemera	8:0345cdc7efa5	2441
mbed_official	5:b3b3370574cf	2442	FatFs[vol] = fs; /* Register new fs object */
mbed_official	5:b3b3370574cf	2443	if (!fs \|\| opt != 1) return FR_OK; /* Do not mount now, it will be mounted later */
mbed_official	5:b3b3370574cf	2444
mbed_official	5:b3b3370574cf	2445	res = find_volume(&fs, &path, 0); /* Force mounted the volume */
vnemera	8:0345cdc7efa5	2446
vnemera	8:0345cdc7efa5	2447	//printf("v1 %i +", res);
vnemera	8:0345cdc7efa5	2448	//printf("v2 %i +", fs);
vnemera	8:0345cdc7efa5	2449	//printf("v1 %c +", path);
vnemera	8:0345cdc7efa5	2450
mbed_official	5:b3b3370574cf	2451	LEAVE_FF(fs, res);
emilmont	1:46ce1e16c870	2452	}
emilmont	1:46ce1e16c870	2453
emilmont	1:46ce1e16c870	2454
emilmont	1:46ce1e16c870	2455
emilmont	1:46ce1e16c870	2456
emilmont	1:46ce1e16c870	2457	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2458	/* Open or Create a File */
emilmont	1:46ce1e16c870	2459	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2460
emilmont	1:46ce1e16c870	2461	FRESULT f_open (
mbed_official	5:b3b3370574cf	2462	FIL* fp, /* Pointer to the blank file object */
mbed_official	5:b3b3370574cf	2463	const TCHAR* path, /* Pointer to the file name */
mbed_official	5:b3b3370574cf	2464	BYTE mode /* Access mode and file open mode flags */
emilmont	1:46ce1e16c870	2465	)
emilmont	1:46ce1e16c870	2466	{
mbed_official	5:b3b3370574cf	2467	FRESULT res;
mbed_official	5:b3b3370574cf	2468	FATFS_DIR dj;
mbed_official	6:a5fcdbf92056	2469	BYTE *dir;
mbed_official	5:b3b3370574cf	2470	DEFINE_NAMEBUF;
emilmont	1:46ce1e16c870	2471	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2472	DWORD dw, cl;
mbed_official	5:b3b3370574cf	2473	#endif
mbed_official	5:b3b3370574cf	2474
mbed_official	5:b3b3370574cf	2475
mbed_official	5:b3b3370574cf	2476	if (!fp) return FR_INVALID_OBJECT;
mbed_official	5:b3b3370574cf	2477	fp->fs = 0; /* Clear file object */
mbed_official	5:b3b3370574cf	2478
mbed_official	5:b3b3370574cf	2479	/* Get logical drive number */
mbed_official	5:b3b3370574cf	2480	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2481	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
mbed_official	5:b3b3370574cf	2482	res = find_volume(&dj.fs, &path, (BYTE)(mode & ~FA_READ));
emilmont	1:46ce1e16c870	2483	#else
mbed_official	5:b3b3370574cf	2484	mode &= FA_READ;
mbed_official	5:b3b3370574cf	2485	res = find_volume(&dj.fs, &path, 0);
emilmont	1:46ce1e16c870	2486	#endif
mbed_official	5:b3b3370574cf	2487	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2488	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	2489	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	6:a5fcdbf92056	2490	dir = dj.dir;
mbed_official	5:b3b3370574cf	2491	#if !_FS_READONLY /* R/W configuration */
mbed_official	5:b3b3370574cf	2492	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	2493	if (!dir) /* Default directory itself */
mbed_official	5:b3b3370574cf	2494	res = FR_INVALID_NAME;
emilmont	1:46ce1e16c870	2495	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2496	else
mbed_official	5:b3b3370574cf	2497	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
emilmont	1:46ce1e16c870	2498	#endif
mbed_official	5:b3b3370574cf	2499	}
mbed_official	5:b3b3370574cf	2500	/* Create or Open a file */
mbed_official	5:b3b3370574cf	2501	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
mbed_official	5:b3b3370574cf	2502	if (res != FR_OK) { /* No file, create new */
mbed_official	5:b3b3370574cf	2503	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
emilmont	1:46ce1e16c870	2504	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2505	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
emilmont	1:46ce1e16c870	2506	#else
mbed_official	5:b3b3370574cf	2507	res = dir_register(&dj);
emilmont	1:46ce1e16c870	2508	#endif
mbed_official	5:b3b3370574cf	2509	mode \|= FA_CREATE_ALWAYS; /* File is created */
mbed_official	6:a5fcdbf92056	2510	dir = dj.dir; /* New entry */
mbed_official	5:b3b3370574cf	2511	}
mbed_official	5:b3b3370574cf	2512	else { /* Any object is already existing */
mbed_official	6:a5fcdbf92056	2513	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or FATFS_DIR) */
mbed_official	5:b3b3370574cf	2514	res = FR_DENIED;
mbed_official	5:b3b3370574cf	2515	} else {
mbed_official	5:b3b3370574cf	2516	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
mbed_official	5:b3b3370574cf	2517	res = FR_EXIST;
mbed_official	5:b3b3370574cf	2518	}
mbed_official	5:b3b3370574cf	2519	}
mbed_official	5:b3b3370574cf	2520	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
mbed_official	6:a5fcdbf92056	2521	dw = GET_FATTIME();
mbed_official	6:a5fcdbf92056	2522	ST_DWORD(dir + DIR_CrtTime, dw);/* Set created time */
mbed_official	6:a5fcdbf92056	2523	ST_DWORD(dir + DIR_WrtTime, dw);/* Set modified time */
mbed_official	6:a5fcdbf92056	2524	dir[DIR_Attr] = 0; /* Reset attribute */
mbed_official	6:a5fcdbf92056	2525	ST_DWORD(dir + DIR_FileSize, 0);/* Reset file size */
mbed_official	6:a5fcdbf92056	2526	cl = ld_clust(dj.fs, dir); /* Get cluster chain */
mbed_official	6:a5fcdbf92056	2527	st_clust(dir, 0); /* Reset cluster */
mbed_official	5:b3b3370574cf	2528	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	2529	if (cl) { /* Remove the cluster chain if exist */
mbed_official	5:b3b3370574cf	2530	dw = dj.fs->winsect;
mbed_official	5:b3b3370574cf	2531	res = remove_chain(dj.fs, cl);
mbed_official	5:b3b3370574cf	2532	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2533	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
mbed_official	5:b3b3370574cf	2534	res = move_window(dj.fs, dw);
mbed_official	5:b3b3370574cf	2535	}
mbed_official	5:b3b3370574cf	2536	}
mbed_official	5:b3b3370574cf	2537	}
mbed_official	5:b3b3370574cf	2538	}
mbed_official	5:b3b3370574cf	2539	else { /* Open an existing file */
mbed_official	6:a5fcdbf92056	2540	if (res == FR_OK) { /* Following succeeded */
mbed_official	6:a5fcdbf92056	2541	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
mbed_official	5:b3b3370574cf	2542	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	2543	} else {
mbed_official	6:a5fcdbf92056	2544	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
mbed_official	5:b3b3370574cf	2545	res = FR_DENIED;
mbed_official	5:b3b3370574cf	2546	}
mbed_official	5:b3b3370574cf	2547	}
mbed_official	5:b3b3370574cf	2548	}
mbed_official	5:b3b3370574cf	2549	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2550	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
mbed_official	5:b3b3370574cf	2551	mode \|= FA__WRITTEN;
mbed_official	5:b3b3370574cf	2552	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
mbed_official	6:a5fcdbf92056	2553	fp->dir_ptr = dir;
emilmont	1:46ce1e16c870	2554	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2555	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
mbed_official	5:b3b3370574cf	2556	if (!fp->lockid) res = FR_INT_ERR;
emilmont	1:46ce1e16c870	2557	#endif
mbed_official	5:b3b3370574cf	2558	}
mbed_official	5:b3b3370574cf	2559
mbed_official	5:b3b3370574cf	2560	#else /* R/O configuration */
mbed_official	5:b3b3370574cf	2561	if (res == FR_OK) { /* Follow succeeded */
mbed_official	6:a5fcdbf92056	2562	dir = dj.dir;
mbed_official	6:a5fcdbf92056	2563	if (!dir) { /* Current directory itself */
mbed_official	5:b3b3370574cf	2564	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	2565	} else {
mbed_official	6:a5fcdbf92056	2566	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
mbed_official	5:b3b3370574cf	2567	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	2568	}
mbed_official	5:b3b3370574cf	2569	}
emilmont	1:46ce1e16c870	2570	#endif
mbed_official	5:b3b3370574cf	2571	FREE_BUF();
mbed_official	5:b3b3370574cf	2572
mbed_official	5:b3b3370574cf	2573	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2574	fp->flag = mode; /* File access mode */
mbed_official	5:b3b3370574cf	2575	fp->err = 0; /* Clear error flag */
mbed_official	6:a5fcdbf92056	2576	fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
mbed_official	6:a5fcdbf92056	2577	fp->fsize = LD_DWORD(dir + DIR_FileSize); /* File size */
mbed_official	5:b3b3370574cf	2578	fp->fptr = 0; /* File pointer */
mbed_official	5:b3b3370574cf	2579	fp->dsect = 0;
emilmont	1:46ce1e16c870	2580	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	2581	fp->cltbl = 0; /* Normal seek mode */
emilmont	1:46ce1e16c870	2582	#endif
mbed_official	5:b3b3370574cf	2583	fp->fs = dj.fs; /* Validate file object */
mbed_official	5:b3b3370574cf	2584	fp->id = fp->fs->id;
mbed_official	5:b3b3370574cf	2585	}
mbed_official	5:b3b3370574cf	2586	}
mbed_official	5:b3b3370574cf	2587
mbed_official	5:b3b3370574cf	2588	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	2589	}
emilmont	1:46ce1e16c870	2590
emilmont	1:46ce1e16c870	2591
emilmont	1:46ce1e16c870	2592
emilmont	1:46ce1e16c870	2593
emilmont	1:46ce1e16c870	2594	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2595	/* Read File */
emilmont	1:46ce1e16c870	2596	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2597
emilmont	1:46ce1e16c870	2598	FRESULT f_read (
mbed_official	5:b3b3370574cf	2599	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	2600	void* buff, /* Pointer to data buffer */
mbed_official	5:b3b3370574cf	2601	UINT btr, /* Number of bytes to read */
mbed_official	5:b3b3370574cf	2602	UINT* br /* Pointer to number of bytes read */
emilmont	1:46ce1e16c870	2603	)
emilmont	1:46ce1e16c870	2604	{
mbed_official	5:b3b3370574cf	2605	FRESULT res;
mbed_official	5:b3b3370574cf	2606	DWORD clst, sect, remain;
mbed_official	5:b3b3370574cf	2607	UINT rcnt, cc;
mbed_official	5:b3b3370574cf	2608	BYTE csect, rbuff = (BYTE)buff;
mbed_official	5:b3b3370574cf	2609
mbed_official	5:b3b3370574cf	2610
mbed_official	5:b3b3370574cf	2611	br = 0; / Clear read byte counter */
mbed_official	5:b3b3370574cf	2612
mbed_official	5:b3b3370574cf	2613	res = validate(fp); /* Check validity */
mbed_official	5:b3b3370574cf	2614	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	2615	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	2616	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mbed_official	5:b3b3370574cf	2617	if (!(fp->flag & FA_READ)) /* Check access mode */
mbed_official	5:b3b3370574cf	2618	LEAVE_FF(fp->fs, FR_DENIED);
mbed_official	5:b3b3370574cf	2619	remain = fp->fsize - fp->fptr;
mbed_official	5:b3b3370574cf	2620	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
mbed_official	5:b3b3370574cf	2621
mbed_official	5:b3b3370574cf	2622	for ( ; btr; /* Repeat until all data read */
mbed_official	5:b3b3370574cf	2623	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
mbed_official	5:b3b3370574cf	2624	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mbed_official	5:b3b3370574cf	2625	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mbed_official	5:b3b3370574cf	2626	if (!csect) { /* On the cluster boundary? */
mbed_official	5:b3b3370574cf	2627	if (fp->fptr == 0) { /* On the top of the file? */
mbed_official	5:b3b3370574cf	2628	clst = fp->sclust; /* Follow from the origin */
mbed_official	5:b3b3370574cf	2629	} else { /* Middle or end of the file */
emilmont	1:46ce1e16c870	2630	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	2631	if (fp->cltbl)
mbed_official	5:b3b3370574cf	2632	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mbed_official	5:b3b3370574cf	2633	else
emilmont	1:46ce1e16c870	2634	#endif
mbed_official	5:b3b3370574cf	2635	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
mbed_official	5:b3b3370574cf	2636	}
mbed_official	5:b3b3370574cf	2637	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2638	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2639	fp->clust = clst; /* Update current cluster */
mbed_official	5:b3b3370574cf	2640	}
mbed_official	5:b3b3370574cf	2641	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mbed_official	5:b3b3370574cf	2642	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2643	sect += csect;
mbed_official	5:b3b3370574cf	2644	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
mbed_official	5:b3b3370574cf	2645	if (cc) { /* Read maximum contiguous sectors directly */
mbed_official	5:b3b3370574cf	2646	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mbed_official	5:b3b3370574cf	2647	cc = fp->fs->csize - csect;
mbed_official	5:b3b3370574cf	2648	if (disk_read(fp->fs->drv, rbuff, sect, cc) != RES_OK)
mbed_official	5:b3b3370574cf	2649	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2650	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
emilmont	1:46ce1e16c870	2651	#if _FS_TINY
mbed_official	5:b3b3370574cf	2652	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
mbed_official	5:b3b3370574cf	2653	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
emilmont	1:46ce1e16c870	2654	#else
mbed_official	5:b3b3370574cf	2655	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
mbed_official	5:b3b3370574cf	2656	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
emilmont	1:46ce1e16c870	2657	#endif
emilmont	1:46ce1e16c870	2658	#endif
mbed_official	5:b3b3370574cf	2659	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mbed_official	5:b3b3370574cf	2660	continue;
mbed_official	5:b3b3370574cf	2661	}
emilmont	1:46ce1e16c870	2662	#if !_FS_TINY
mbed_official	5:b3b3370574cf	2663	if (fp->dsect != sect) { /* Load data sector if not in cache */
emilmont	1:46ce1e16c870	2664	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2665	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mbed_official	5:b3b3370574cf	2666	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2667	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2668	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2669	}
emilmont	1:46ce1e16c870	2670	#endif
mbed_official	5:b3b3370574cf	2671	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
mbed_official	5:b3b3370574cf	2672	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2673	}
emilmont	1:46ce1e16c870	2674	#endif
mbed_official	5:b3b3370574cf	2675	fp->dsect = sect;
mbed_official	5:b3b3370574cf	2676	}
mbed_official	5:b3b3370574cf	2677	rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
mbed_official	5:b3b3370574cf	2678	if (rcnt > btr) rcnt = btr;
emilmont	1:46ce1e16c870	2679	#if _FS_TINY
mbed_official	5:b3b3370574cf	2680	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
mbed_official	5:b3b3370574cf	2681	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2682	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
emilmont	1:46ce1e16c870	2683	#else
mbed_official	5:b3b3370574cf	2684	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
emilmont	1:46ce1e16c870	2685	#endif
mbed_official	5:b3b3370574cf	2686	}
mbed_official	5:b3b3370574cf	2687
mbed_official	5:b3b3370574cf	2688	LEAVE_FF(fp->fs, FR_OK);
emilmont	1:46ce1e16c870	2689	}
emilmont	1:46ce1e16c870	2690
emilmont	1:46ce1e16c870	2691
emilmont	1:46ce1e16c870	2692
emilmont	1:46ce1e16c870	2693
emilmont	1:46ce1e16c870	2694	#if !_FS_READONLY
emilmont	1:46ce1e16c870	2695	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2696	/* Write File */
emilmont	1:46ce1e16c870	2697	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2698
emilmont	1:46ce1e16c870	2699	FRESULT f_write (
mbed_official	5:b3b3370574cf	2700	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	2701	const void buff, / Pointer to the data to be written */
mbed_official	5:b3b3370574cf	2702	UINT btw, /* Number of bytes to write */
mbed_official	5:b3b3370574cf	2703	UINT* bw /* Pointer to number of bytes written */
emilmont	1:46ce1e16c870	2704	)
emilmont	1:46ce1e16c870	2705	{
mbed_official	5:b3b3370574cf	2706	FRESULT res;
mbed_official	5:b3b3370574cf	2707	DWORD clst, sect;
mbed_official	5:b3b3370574cf	2708	UINT wcnt, cc;
mbed_official	5:b3b3370574cf	2709	const BYTE wbuff = (const BYTE)buff;
mbed_official	5:b3b3370574cf	2710	BYTE csect;
mbed_official	5:b3b3370574cf	2711	bool need_sync = false;
mbed_official	5:b3b3370574cf	2712
mbed_official	5:b3b3370574cf	2713	bw = 0; / Clear write byte counter */
mbed_official	5:b3b3370574cf	2714
mbed_official	5:b3b3370574cf	2715	res = validate(fp); /* Check validity */
mbed_official	5:b3b3370574cf	2716	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	2717	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	2718	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mbed_official	5:b3b3370574cf	2719	if (!(fp->flag & FA_WRITE)) /* Check access mode */
mbed_official	5:b3b3370574cf	2720	LEAVE_FF(fp->fs, FR_DENIED);
mbed_official	5:b3b3370574cf	2721	if (fp->fptr + btw < fp->fptr) btw = 0; /* File size cannot reach 4GB */
mbed_official	5:b3b3370574cf	2722
mbed_official	5:b3b3370574cf	2723	for ( ; btw; /* Repeat until all data written */
mbed_official	5:b3b3370574cf	2724	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
mbed_official	5:b3b3370574cf	2725	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mbed_official	5:b3b3370574cf	2726	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mbed_official	5:b3b3370574cf	2727	if (!csect) { /* On the cluster boundary? */
mbed_official	5:b3b3370574cf	2728	if (fp->fptr == 0) { /* On the top of the file? */
mbed_official	5:b3b3370574cf	2729	clst = fp->sclust; /* Follow from the origin */
mbed_official	5:b3b3370574cf	2730	if (clst == 0) /* When no cluster is allocated, */
mbed_official	5:b3b3370574cf	2731	clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
mbed_official	5:b3b3370574cf	2732	} else { /* Middle or end of the file */
emilmont	1:46ce1e16c870	2733	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	2734	if (fp->cltbl)
mbed_official	5:b3b3370574cf	2735	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mbed_official	5:b3b3370574cf	2736	else
emilmont	1:46ce1e16c870	2737	#endif
mbed_official	5:b3b3370574cf	2738	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
mbed_official	5:b3b3370574cf	2739	}
mbed_official	5:b3b3370574cf	2740	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
mbed_official	5:b3b3370574cf	2741	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2742	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2743	fp->clust = clst; /* Update current cluster */
mbed_official	5:b3b3370574cf	2744	if (fp->sclust == 0) fp->sclust = clst; /* Set start cluster if the first write */
mbed_official	5:b3b3370574cf	2745
mbed_official	6:a5fcdbf92056	2746	#if FLUSH_ON_NEW_CLUSTER
mbed_official	4:3ff2606d5713	2747	// We do not need to flush for the first cluster
mbed_official	4:3ff2606d5713	2748	if (fp->fptr != 0) {
mbed_official	4:3ff2606d5713	2749	need_sync = true;
mbed_official	4:3ff2606d5713	2750	}
mbed_official	4:3ff2606d5713	2751	#endif
mbed_official	5:b3b3370574cf	2752	}
emilmont	1:46ce1e16c870	2753	#if _FS_TINY
mbed_official	5:b3b3370574cf	2754	if (fp->fs->winsect == fp->dsect && sync_window(fp->fs)) /* Write-back sector cache */
mbed_official	5:b3b3370574cf	2755	ABORT(fp->fs, FR_DISK_ERR);
emilmont	1:46ce1e16c870	2756	#else
mbed_official	5:b3b3370574cf	2757	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
mbed_official	5:b3b3370574cf	2758	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2759	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2760	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2761	}
emilmont	1:46ce1e16c870	2762	#endif
mbed_official	5:b3b3370574cf	2763	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mbed_official	5:b3b3370574cf	2764	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2765	sect += csect;
mbed_official	5:b3b3370574cf	2766	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
mbed_official	5:b3b3370574cf	2767	if (cc) { /* Write maximum contiguous sectors directly */
mbed_official	5:b3b3370574cf	2768	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mbed_official	5:b3b3370574cf	2769	cc = fp->fs->csize - csect;
mbed_official	5:b3b3370574cf	2770	if (disk_write(fp->fs->drv, wbuff, sect, cc) != RES_OK)
mbed_official	5:b3b3370574cf	2771	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2772	#if _FS_MINIMIZE <= 2
emilmont	1:46ce1e16c870	2773	#if _FS_TINY
mbed_official	5:b3b3370574cf	2774	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mbed_official	5:b3b3370574cf	2775	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
mbed_official	5:b3b3370574cf	2776	fp->fs->wflag = 0;
mbed_official	5:b3b3370574cf	2777	}
emilmont	1:46ce1e16c870	2778	#else
mbed_official	5:b3b3370574cf	2779	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mbed_official	5:b3b3370574cf	2780	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
mbed_official	5:b3b3370574cf	2781	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2782	}
emilmont	1:46ce1e16c870	2783	#endif
mbed_official	5:b3b3370574cf	2784	#endif
mbed_official	5:b3b3370574cf	2785	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mbed_official	6:a5fcdbf92056	2786	#if FLUSH_ON_NEW_SECTOR
mbed_official	4:3ff2606d5713	2787	need_sync = true;
mbed_official	4:3ff2606d5713	2788	#endif
mbed_official	5:b3b3370574cf	2789	continue;
mbed_official	5:b3b3370574cf	2790	}
emilmont	1:46ce1e16c870	2791	#if _FS_TINY
mbed_official	5:b3b3370574cf	2792	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
mbed_official	5:b3b3370574cf	2793	if (sync_window(fp->fs)) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2794	fp->fs->winsect = sect;
mbed_official	5:b3b3370574cf	2795	}
emilmont	1:46ce1e16c870	2796	#else
mbed_official	5:b3b3370574cf	2797	if (fp->dsect != sect) { /* Fill sector cache with file data */
mbed_official	5:b3b3370574cf	2798	if (fp->fptr < fp->fsize &&
mbed_official	5:b3b3370574cf	2799	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2800	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2801	}
emilmont	1:46ce1e16c870	2802	#endif
mbed_official	5:b3b3370574cf	2803	fp->dsect = sect;
mbed_official	5:b3b3370574cf	2804	}
mbed_official	5:b3b3370574cf	2805	wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
mbed_official	5:b3b3370574cf	2806	if (wcnt > btw) wcnt = btw;
emilmont	1:46ce1e16c870	2807	#if _FS_TINY
mbed_official	5:b3b3370574cf	2808	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
mbed_official	5:b3b3370574cf	2809	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2810	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mbed_official	5:b3b3370574cf	2811	fp->fs->wflag = 1;
emilmont	1:46ce1e16c870	2812	#else
mbed_official	5:b3b3370574cf	2813	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mbed_official	5:b3b3370574cf	2814	fp->flag \|= FA__DIRTY;
emilmont	1:46ce1e16c870	2815	#endif
mbed_official	5:b3b3370574cf	2816	}
mbed_official	5:b3b3370574cf	2817
mbed_official	5:b3b3370574cf	2818	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
mbed_official	5:b3b3370574cf	2819	fp->flag \|= FA__WRITTEN; /* Set file change flag */
mbed_official	5:b3b3370574cf	2820
mbed_official	5:b3b3370574cf	2821	if (need_sync) {
mbed_official	4:3ff2606d5713	2822	f_sync (fp);
mbed_official	4:3ff2606d5713	2823	}
mbed_official	6:a5fcdbf92056	2824
mbed_official	5:b3b3370574cf	2825	LEAVE_FF(fp->fs, FR_OK);
emilmont	1:46ce1e16c870	2826	}
emilmont	1:46ce1e16c870	2827
emilmont	1:46ce1e16c870	2828
emilmont	1:46ce1e16c870	2829
emilmont	1:46ce1e16c870	2830
emilmont	1:46ce1e16c870	2831	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2832	/* Synchronize the File */
emilmont	1:46ce1e16c870	2833	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2834
emilmont	1:46ce1e16c870	2835	FRESULT f_sync (
mbed_official	5:b3b3370574cf	2836	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	2837	)
emilmont	1:46ce1e16c870	2838	{
mbed_official	5:b3b3370574cf	2839	FRESULT res;
mbed_official	5:b3b3370574cf	2840	DWORD tm;
mbed_official	6:a5fcdbf92056	2841	BYTE *dir;
mbed_official	5:b3b3370574cf	2842
mbed_official	5:b3b3370574cf	2843
mbed_official	5:b3b3370574cf	2844	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	2845	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	2846	if (fp->flag & FA__WRITTEN) { /* Is there any change to the file? */
mbed_official	5:b3b3370574cf	2847	#if !_FS_TINY
mbed_official	6:a5fcdbf92056	2848	if (fp->flag & FA__DIRTY) { /* Write-back cached data if needed */
mbed_official	5:b3b3370574cf	2849	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2850	LEAVE_FF(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2851	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2852	}
emilmont	1:46ce1e16c870	2853	#endif
mbed_official	5:b3b3370574cf	2854	/* Update the directory entry */
mbed_official	5:b3b3370574cf	2855	res = move_window(fp->fs, fp->dir_sect);
mbed_official	5:b3b3370574cf	2856	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	2857	dir = fp->dir_ptr;
mbed_official	6:a5fcdbf92056	2858	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
mbed_official	6:a5fcdbf92056	2859	ST_DWORD(dir + DIR_FileSize, fp->fsize); /* Update file size */
mbed_official	6:a5fcdbf92056	2860	st_clust(dir, fp->sclust); /* Update start cluster */
mbed_official	6:a5fcdbf92056	2861	tm = GET_FATTIME(); /* Update modified time */
mbed_official	6:a5fcdbf92056	2862	ST_DWORD(dir + DIR_WrtTime, tm);
mbed_official	6:a5fcdbf92056	2863	ST_WORD(dir + DIR_LstAccDate, 0);
mbed_official	5:b3b3370574cf	2864	fp->flag &= ~FA__WRITTEN;
mbed_official	5:b3b3370574cf	2865	fp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	2866	res = sync_fs(fp->fs);
mbed_official	5:b3b3370574cf	2867	}
mbed_official	5:b3b3370574cf	2868	}
mbed_official	5:b3b3370574cf	2869	}
mbed_official	5:b3b3370574cf	2870
mbed_official	5:b3b3370574cf	2871	LEAVE_FF(fp->fs, res);
emilmont	1:46ce1e16c870	2872	}
emilmont	1:46ce1e16c870	2873
emilmont	1:46ce1e16c870	2874	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	2875
emilmont	1:46ce1e16c870	2876
emilmont	1:46ce1e16c870	2877
emilmont	1:46ce1e16c870	2878
emilmont	1:46ce1e16c870	2879	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2880	/* Close File */
emilmont	1:46ce1e16c870	2881	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2882
emilmont	1:46ce1e16c870	2883	FRESULT f_close (
mbed_official	5:b3b3370574cf	2884	FIL fp / Pointer to the file object to be closed */
emilmont	1:46ce1e16c870	2885	)
emilmont	1:46ce1e16c870	2886	{
mbed_official	5:b3b3370574cf	2887	FRESULT res;
mbed_official	5:b3b3370574cf	2888
mbed_official	5:b3b3370574cf	2889
mbed_official	5:b3b3370574cf	2890	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2891	res = f_sync(fp); /* Flush cached data */
mbed_official	5:b3b3370574cf	2892	if (res == FR_OK)
mbed_official	5:b3b3370574cf	2893	#endif
mbed_official	5:b3b3370574cf	2894	{
mbed_official	5:b3b3370574cf	2895	res = validate(fp); /* Lock volume */
mbed_official	5:b3b3370574cf	2896	if (res == FR_OK) {
emilmont	1:46ce1e16c870	2897	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	2898	FATFS *fs = fp->fs;
emilmont	1:46ce1e16c870	2899	#endif
emilmont	1:46ce1e16c870	2900	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2901	res = dec_lock(fp->lockid); /* Decrement file open counter */
mbed_official	5:b3b3370574cf	2902	if (res == FR_OK)
mbed_official	5:b3b3370574cf	2903	#endif
mbed_official	5:b3b3370574cf	2904	fp->fs = 0; /* Invalidate file object */
emilmont	1:46ce1e16c870	2905	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	2906	unlock_fs(fs, FR_OK); /* Unlock volume */
emilmont	1:46ce1e16c870	2907	#endif
mbed_official	5:b3b3370574cf	2908	}
mbed_official	5:b3b3370574cf	2909	}
mbed_official	5:b3b3370574cf	2910	return res;
emilmont	1:46ce1e16c870	2911	}
emilmont	1:46ce1e16c870	2912
emilmont	1:46ce1e16c870	2913
emilmont	1:46ce1e16c870	2914
emilmont	1:46ce1e16c870	2915
emilmont	1:46ce1e16c870	2916	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2917	/* Change Current Directory or Current Drive, Get Current Directory */
emilmont	1:46ce1e16c870	2918	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2919
emilmont	1:46ce1e16c870	2920	#if _FS_RPATH >= 1
mbed_official	5:b3b3370574cf	2921	#if _VOLUMES >= 2
emilmont	1:46ce1e16c870	2922	FRESULT f_chdrive (
mbed_official	5:b3b3370574cf	2923	const TCHAR* path /* Drive number */
emilmont	1:46ce1e16c870	2924	)
emilmont	1:46ce1e16c870	2925	{
mbed_official	5:b3b3370574cf	2926	int vol;
mbed_official	5:b3b3370574cf	2927
mbed_official	5:b3b3370574cf	2928
mbed_official	5:b3b3370574cf	2929	vol = get_ldnumber(&path);
mbed_official	5:b3b3370574cf	2930	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	2931
mbed_official	5:b3b3370574cf	2932	CurrVol = (BYTE)vol;
mbed_official	5:b3b3370574cf	2933
mbed_official	5:b3b3370574cf	2934	return FR_OK;
emilmont	1:46ce1e16c870	2935	}
mbed_official	5:b3b3370574cf	2936	#endif
emilmont	1:46ce1e16c870	2937
emilmont	1:46ce1e16c870	2938
emilmont	1:46ce1e16c870	2939	FRESULT f_chdir (
mbed_official	5:b3b3370574cf	2940	const TCHAR* path /* Pointer to the directory path */
emilmont	1:46ce1e16c870	2941	)
emilmont	1:46ce1e16c870	2942	{
mbed_official	5:b3b3370574cf	2943	FRESULT res;
mbed_official	5:b3b3370574cf	2944	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	2945	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	2946
mbed_official	5:b3b3370574cf	2947
mbed_official	5:b3b3370574cf	2948	/* Get logical drive number */
mbed_official	5:b3b3370574cf	2949	res = find_volume(&dj.fs, &path, 0);
mbed_official	5:b3b3370574cf	2950	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2951	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	2952	res = follow_path(&dj, path); /* Follow the path */
mbed_official	5:b3b3370574cf	2953	FREE_BUF();
mbed_official	5:b3b3370574cf	2954	if (res == FR_OK) { /* Follow completed */
mbed_official	6:a5fcdbf92056	2955	if (!dj.dir) {
mbed_official	5:b3b3370574cf	2956	dj.fs->cdir = dj.sclust; /* Start directory itself */
mbed_official	5:b3b3370574cf	2957	} else {
mbed_official	6:a5fcdbf92056	2958	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
mbed_official	6:a5fcdbf92056	2959	dj.fs->cdir = ld_clust(dj.fs, dj.dir);
mbed_official	5:b3b3370574cf	2960	else
mbed_official	5:b3b3370574cf	2961	res = FR_NO_PATH; /* Reached but a file */
mbed_official	5:b3b3370574cf	2962	}
mbed_official	5:b3b3370574cf	2963	}
mbed_official	5:b3b3370574cf	2964	if (res == FR_NO_FILE) res = FR_NO_PATH;
mbed_official	5:b3b3370574cf	2965	}
mbed_official	5:b3b3370574cf	2966
mbed_official	5:b3b3370574cf	2967	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	2968	}
emilmont	1:46ce1e16c870	2969
emilmont	1:46ce1e16c870	2970
emilmont	1:46ce1e16c870	2971	#if _FS_RPATH >= 2
emilmont	1:46ce1e16c870	2972	FRESULT f_getcwd (
mbed_official	5:b3b3370574cf	2973	TCHAR* buff, /* Pointer to the directory path */
mbed_official	5:b3b3370574cf	2974	UINT len /* Size of path */
emilmont	1:46ce1e16c870	2975	)
emilmont	1:46ce1e16c870	2976	{
mbed_official	5:b3b3370574cf	2977	FRESULT res;
mbed_official	5:b3b3370574cf	2978	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	2979	UINT i, n;
mbed_official	5:b3b3370574cf	2980	DWORD ccl;
mbed_official	5:b3b3370574cf	2981	TCHAR *tp;
mbed_official	5:b3b3370574cf	2982	FILINFO fno;
mbed_official	5:b3b3370574cf	2983	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	2984
mbed_official	5:b3b3370574cf	2985
mbed_official	5:b3b3370574cf	2986	*buff = 0;
mbed_official	5:b3b3370574cf	2987	/* Get logical drive number */
mbed_official	5:b3b3370574cf	2988	res = find_volume(&dj.fs, (const TCHAR*)&buff, 0); / Get current volume */
mbed_official	5:b3b3370574cf	2989	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2990	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	2991	i = len; /* Bottom of buffer (directory stack base) */
mbed_official	5:b3b3370574cf	2992	dj.sclust = dj.fs->cdir; /* Start to follow upper directory from current directory */
mbed_official	5:b3b3370574cf	2993	while ((ccl = dj.sclust) != 0) { /* Repeat while current directory is a sub-directory */
mbed_official	5:b3b3370574cf	2994	res = dir_sdi(&dj, 1); /* Get parent directory */
mbed_official	5:b3b3370574cf	2995	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	2996	res = dir_read(&dj, 0);
mbed_official	5:b3b3370574cf	2997	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	2998	dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent directory */
mbed_official	5:b3b3370574cf	2999	res = dir_sdi(&dj, 0);
mbed_official	5:b3b3370574cf	3000	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	3001	do { /* Find the entry links to the child directory */
mbed_official	5:b3b3370574cf	3002	res = dir_read(&dj, 0);
mbed_official	5:b3b3370574cf	3003	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	3004	if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
mbed_official	5:b3b3370574cf	3005	res = dir_next(&dj, 0);
mbed_official	5:b3b3370574cf	3006	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	3007	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
mbed_official	5:b3b3370574cf	3008	if (res != FR_OK) break;
emilmont	1:46ce1e16c870	3009	#if _USE_LFN
mbed_official	5:b3b3370574cf	3010	fno.lfname = buff;
mbed_official	5:b3b3370574cf	3011	fno.lfsize = i;
mbed_official	5:b3b3370574cf	3012	#endif
mbed_official	5:b3b3370574cf	3013	get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */
mbed_official	5:b3b3370574cf	3014	tp = fno.fname;
mbed_official	5:b3b3370574cf	3015	#if _USE_LFN
mbed_official	5:b3b3370574cf	3016	if (*buff) tp = buff;
emilmont	1:46ce1e16c870	3017	#endif
mbed_official	5:b3b3370574cf	3018	for (n = 0; tp[n]; n++) ;
mbed_official	5:b3b3370574cf	3019	if (i < n + 3) {
mbed_official	5:b3b3370574cf	3020	res = FR_NOT_ENOUGH_CORE; break;
mbed_official	5:b3b3370574cf	3021	}
mbed_official	5:b3b3370574cf	3022	while (n) buff[--i] = tp[--n];
mbed_official	5:b3b3370574cf	3023	buff[--i] = '/';
mbed_official	5:b3b3370574cf	3024	}
mbed_official	5:b3b3370574cf	3025	tp = buff;
mbed_official	5:b3b3370574cf	3026	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3027	#if _VOLUMES >= 2
mbed_official	5:b3b3370574cf	3028	tp++ = '0' + CurrVol; / Put drive number */
mbed_official	5:b3b3370574cf	3029	*tp++ = ':';
mbed_official	5:b3b3370574cf	3030	#endif
mbed_official	5:b3b3370574cf	3031	if (i == len) { /* Root-directory */
mbed_official	5:b3b3370574cf	3032	*tp++ = '/';
mbed_official	5:b3b3370574cf	3033	} else { /* Sub-directroy */
mbed_official	5:b3b3370574cf	3034	do /* Add stacked path str */
mbed_official	5:b3b3370574cf	3035	*tp++ = buff[i++];
mbed_official	5:b3b3370574cf	3036	while (i < len);
mbed_official	5:b3b3370574cf	3037	}
mbed_official	5:b3b3370574cf	3038	}
mbed_official	5:b3b3370574cf	3039	*tp = 0;
mbed_official	5:b3b3370574cf	3040	FREE_BUF();
mbed_official	5:b3b3370574cf	3041	}
mbed_official	5:b3b3370574cf	3042
mbed_official	5:b3b3370574cf	3043	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3044	}
emilmont	1:46ce1e16c870	3045	#endif /* _FS_RPATH >= 2 */
emilmont	1:46ce1e16c870	3046	#endif /* _FS_RPATH >= 1 */
emilmont	1:46ce1e16c870	3047
emilmont	1:46ce1e16c870	3048
emilmont	1:46ce1e16c870	3049
emilmont	1:46ce1e16c870	3050	#if _FS_MINIMIZE <= 2
emilmont	1:46ce1e16c870	3051	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3052	/* Seek File R/W Pointer */
emilmont	1:46ce1e16c870	3053	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3054
emilmont	1:46ce1e16c870	3055	FRESULT f_lseek (
mbed_official	5:b3b3370574cf	3056	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	3057	DWORD ofs /* File pointer from top of file */
emilmont	1:46ce1e16c870	3058	)
emilmont	1:46ce1e16c870	3059	{
mbed_official	5:b3b3370574cf	3060	FRESULT res;
mbed_official	5:b3b3370574cf	3061	DWORD clst, bcs, nsect, ifptr;
mbed_official	5:b3b3370574cf	3062	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	3063	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
mbed_official	5:b3b3370574cf	3064	#endif
mbed_official	5:b3b3370574cf	3065
mbed_official	5:b3b3370574cf	3066
mbed_official	5:b3b3370574cf	3067	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	3068	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	3069	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	3070	LEAVE_FF(fp->fs, (FRESULT)fp->err);
emilmont	1:46ce1e16c870	3071
emilmont	1:46ce1e16c870	3072	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	3073	if (fp->cltbl) { /* Fast seek */
mbed_official	5:b3b3370574cf	3074	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
mbed_official	5:b3b3370574cf	3075	tbl = fp->cltbl;
mbed_official	5:b3b3370574cf	3076	tlen = tbl++; ulen = 2; / Given table size and required table size */
mbed_official	5:b3b3370574cf	3077	cl = fp->sclust; /* Top of the chain */
mbed_official	5:b3b3370574cf	3078	if (cl) {
mbed_official	5:b3b3370574cf	3079	do {
mbed_official	5:b3b3370574cf	3080	/* Get a fragment */
mbed_official	5:b3b3370574cf	3081	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
mbed_official	5:b3b3370574cf	3082	do {
mbed_official	5:b3b3370574cf	3083	pcl = cl; ncl++;
mbed_official	5:b3b3370574cf	3084	cl = get_fat(fp->fs, cl);
mbed_official	5:b3b3370574cf	3085	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3086	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3087	} while (cl == pcl + 1);
mbed_official	5:b3b3370574cf	3088	if (ulen <= tlen) { /* Store the length and top of the fragment */
mbed_official	5:b3b3370574cf	3089	tbl++ = ncl; tbl++ = tcl;
mbed_official	5:b3b3370574cf	3090	}
mbed_official	5:b3b3370574cf	3091	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
mbed_official	5:b3b3370574cf	3092	}
mbed_official	5:b3b3370574cf	3093	fp->cltbl = ulen; / Number of items used */
mbed_official	5:b3b3370574cf	3094	if (ulen <= tlen)
mbed_official	5:b3b3370574cf	3095	tbl = 0; / Terminate table */
mbed_official	5:b3b3370574cf	3096	else
mbed_official	5:b3b3370574cf	3097	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
mbed_official	5:b3b3370574cf	3098
mbed_official	5:b3b3370574cf	3099	} else { /* Fast seek */
mbed_official	5:b3b3370574cf	3100	if (ofs > fp->fsize) /* Clip offset at the file size */
mbed_official	5:b3b3370574cf	3101	ofs = fp->fsize;
mbed_official	5:b3b3370574cf	3102	fp->fptr = ofs; /* Set file pointer */
mbed_official	5:b3b3370574cf	3103	if (ofs) {
mbed_official	5:b3b3370574cf	3104	fp->clust = clmt_clust(fp, ofs - 1);
mbed_official	5:b3b3370574cf	3105	dsc = clust2sect(fp->fs, fp->clust);
mbed_official	5:b3b3370574cf	3106	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3107	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
mbed_official	5:b3b3370574cf	3108	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
emilmont	1:46ce1e16c870	3109	#if !_FS_TINY
emilmont	1:46ce1e16c870	3110	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3111	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mbed_official	5:b3b3370574cf	3112	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	3113	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3114	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	3115	}
emilmont	1:46ce1e16c870	3116	#endif
mbed_official	5:b3b3370574cf	3117	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
mbed_official	5:b3b3370574cf	3118	ABORT(fp->fs, FR_DISK_ERR);
emilmont	1:46ce1e16c870	3119	#endif
mbed_official	5:b3b3370574cf	3120	fp->dsect = dsc;
mbed_official	5:b3b3370574cf	3121	}
mbed_official	5:b3b3370574cf	3122	}
mbed_official	5:b3b3370574cf	3123	}
mbed_official	5:b3b3370574cf	3124	} else
emilmont	1:46ce1e16c870	3125	#endif
emilmont	1:46ce1e16c870	3126
mbed_official	5:b3b3370574cf	3127	/* Normal Seek */
mbed_official	5:b3b3370574cf	3128	{
mbed_official	5:b3b3370574cf	3129	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
emilmont	1:46ce1e16c870	3130	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3131	&& !(fp->flag & FA_WRITE)
emilmont	1:46ce1e16c870	3132	#endif
mbed_official	5:b3b3370574cf	3133	) ofs = fp->fsize;
mbed_official	5:b3b3370574cf	3134
mbed_official	5:b3b3370574cf	3135	ifptr = fp->fptr;
mbed_official	5:b3b3370574cf	3136	fp->fptr = nsect = 0;
mbed_official	5:b3b3370574cf	3137	if (ofs) {
mbed_official	5:b3b3370574cf	3138	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
mbed_official	5:b3b3370574cf	3139	if (ifptr > 0 &&
mbed_official	5:b3b3370574cf	3140	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
mbed_official	5:b3b3370574cf	3141	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
mbed_official	5:b3b3370574cf	3142	ofs -= fp->fptr;
mbed_official	5:b3b3370574cf	3143	clst = fp->clust;
mbed_official	5:b3b3370574cf	3144	} else { /* When seek to back cluster, */
mbed_official	5:b3b3370574cf	3145	clst = fp->sclust; /* start from the first cluster */
emilmont	1:46ce1e16c870	3146	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3147	if (clst == 0) { /* If no cluster chain, create a new chain */
mbed_official	5:b3b3370574cf	3148	clst = create_chain(fp->fs, 0);
mbed_official	5:b3b3370574cf	3149	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3150	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3151	fp->sclust = clst;
mbed_official	5:b3b3370574cf	3152	}
emilmont	1:46ce1e16c870	3153	#endif
mbed_official	5:b3b3370574cf	3154	fp->clust = clst;
mbed_official	5:b3b3370574cf	3155	}
mbed_official	5:b3b3370574cf	3156	if (clst != 0) {
mbed_official	5:b3b3370574cf	3157	while (ofs > bcs) { /* Cluster following loop */
emilmont	1:46ce1e16c870	3158	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3159	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
mbed_official	5:b3b3370574cf	3160	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
mbed_official	5:b3b3370574cf	3161	if (clst == 0) { /* When disk gets full, clip file size */
mbed_official	5:b3b3370574cf	3162	ofs = bcs; break;
mbed_official	5:b3b3370574cf	3163	}
mbed_official	5:b3b3370574cf	3164	} else
emilmont	1:46ce1e16c870	3165	#endif
mbed_official	5:b3b3370574cf	3166	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
mbed_official	5:b3b3370574cf	3167	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3168	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3169	fp->clust = clst;
mbed_official	5:b3b3370574cf	3170	fp->fptr += bcs;
mbed_official	5:b3b3370574cf	3171	ofs -= bcs;
mbed_official	5:b3b3370574cf	3172	}
mbed_official	5:b3b3370574cf	3173	fp->fptr += ofs;
mbed_official	5:b3b3370574cf	3174	if (ofs % SS(fp->fs)) {
mbed_official	5:b3b3370574cf	3175	nsect = clust2sect(fp->fs, clst); /* Current sector */
mbed_official	5:b3b3370574cf	3176	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3177	nsect += ofs / SS(fp->fs);
mbed_official	5:b3b3370574cf	3178	}
mbed_official	5:b3b3370574cf	3179	}
mbed_official	5:b3b3370574cf	3180	}
mbed_official	5:b3b3370574cf	3181	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
emilmont	1:46ce1e16c870	3182	#if !_FS_TINY
emilmont	1:46ce1e16c870	3183	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3184	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mbed_official	5:b3b3370574cf	3185	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	3186	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3187	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	3188	}
emilmont	1:46ce1e16c870	3189	#endif
mbed_official	5:b3b3370574cf	3190	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
mbed_official	5:b3b3370574cf	3191	ABORT(fp->fs, FR_DISK_ERR);
emilmont	1:46ce1e16c870	3192	#endif
mbed_official	5:b3b3370574cf	3193	fp->dsect = nsect;
mbed_official	5:b3b3370574cf	3194	}
emilmont	1:46ce1e16c870	3195	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3196	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
mbed_official	5:b3b3370574cf	3197	fp->fsize = fp->fptr;
mbed_official	5:b3b3370574cf	3198	fp->flag \|= FA__WRITTEN;
mbed_official	5:b3b3370574cf	3199	}
emilmont	1:46ce1e16c870	3200	#endif
mbed_official	5:b3b3370574cf	3201	}
mbed_official	5:b3b3370574cf	3202
mbed_official	5:b3b3370574cf	3203	LEAVE_FF(fp->fs, res);
emilmont	1:46ce1e16c870	3204	}
emilmont	1:46ce1e16c870	3205
emilmont	1:46ce1e16c870	3206
emilmont	1:46ce1e16c870	3207
emilmont	1:46ce1e16c870	3208	#if _FS_MINIMIZE <= 1
emilmont	1:46ce1e16c870	3209	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3210	/* Create a Directory Object */
emilmont	1:46ce1e16c870	3211	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3212
emilmont	1:46ce1e16c870	3213	FRESULT f_opendir (
mbed_official	5:b3b3370574cf	3214	FATFS_DIR* dp, /* Pointer to directory object to create */
mbed_official	5:b3b3370574cf	3215	const TCHAR* path /* Pointer to the directory path */
emilmont	1:46ce1e16c870	3216	)
emilmont	1:46ce1e16c870	3217	{
mbed_official	5:b3b3370574cf	3218	FRESULT res;
mbed_official	5:b3b3370574cf	3219	FATFS* fs;
mbed_official	5:b3b3370574cf	3220	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3221
vnemera	8:0345cdc7efa5	3222	//debug_if(FFS_DBG, "re %i ", dp);
mbed_official	5:b3b3370574cf	3223
mbed_official	5:b3b3370574cf	3224	if (!dp) return FR_INVALID_OBJECT;
mbed_official	5:b3b3370574cf	3225
mbed_official	5:b3b3370574cf	3226	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3227	res = find_volume(&fs, &path, 0);
vnemera	8:0345cdc7efa5	3228	//printf("res %i ", res);
vnemera	8:0345cdc7efa5	3229	//debug_if(FFS_DBG, "res %i ", res);
mbed_official	5:b3b3370574cf	3230	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3231	dp->fs = fs;
mbed_official	5:b3b3370574cf	3232	INIT_BUF(*dp);
mbed_official	5:b3b3370574cf	3233	res = follow_path(dp, path); /* Follow the path to the directory */
mbed_official	5:b3b3370574cf	3234	FREE_BUF();
mbed_official	5:b3b3370574cf	3235	if (res == FR_OK) { /* Follow completed */
mbed_official	6:a5fcdbf92056	3236	if (dp->dir) { /* It is not the origin directory itself */
mbed_official	6:a5fcdbf92056	3237	if (dp->dir[DIR_Attr] & AM_DIR) /* The object is a sub directory */
mbed_official	6:a5fcdbf92056	3238	dp->sclust = ld_clust(fs, dp->dir);
mbed_official	5:b3b3370574cf	3239	else /* The object is a file */
mbed_official	5:b3b3370574cf	3240	res = FR_NO_PATH;
mbed_official	5:b3b3370574cf	3241	}
mbed_official	5:b3b3370574cf	3242	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3243	dp->id = fs->id;
mbed_official	5:b3b3370574cf	3244	res = dir_sdi(dp, 0); /* Rewind directory */
mbed_official	5:b3b3370574cf	3245	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3246	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3247	if (dp->sclust) {
mbed_official	5:b3b3370574cf	3248	dp->lockid = inc_lock(dp, 0); /* Lock the sub directory */
mbed_official	5:b3b3370574cf	3249	if (!dp->lockid)
mbed_official	5:b3b3370574cf	3250	res = FR_TOO_MANY_OPEN_FILES;
mbed_official	5:b3b3370574cf	3251	} else {
mbed_official	5:b3b3370574cf	3252	dp->lockid = 0; /* Root directory need not to be locked */
mbed_official	5:b3b3370574cf	3253	}
mbed_official	5:b3b3370574cf	3254	}
mbed_official	5:b3b3370574cf	3255	#endif
mbed_official	5:b3b3370574cf	3256	}
mbed_official	5:b3b3370574cf	3257	}
mbed_official	5:b3b3370574cf	3258	if (res == FR_NO_FILE) res = FR_NO_PATH;
mbed_official	5:b3b3370574cf	3259	}
mbed_official	5:b3b3370574cf	3260	if (res != FR_OK) dp->fs = 0; /* Invalidate the directory object if function faild */
mbed_official	5:b3b3370574cf	3261
mbed_official	5:b3b3370574cf	3262	LEAVE_FF(fs, res);
mbed_official	5:b3b3370574cf	3263	}
mbed_official	5:b3b3370574cf	3264
mbed_official	5:b3b3370574cf	3265
mbed_official	5:b3b3370574cf	3266
mbed_official	5:b3b3370574cf	3267
mbed_official	5:b3b3370574cf	3268	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3269	/* Close Directory */
mbed_official	5:b3b3370574cf	3270	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3271
mbed_official	5:b3b3370574cf	3272	FRESULT f_closedir (
mbed_official	5:b3b3370574cf	3273	FATFS_DIR dp / Pointer to the directory object to be closed */
mbed_official	5:b3b3370574cf	3274	)
mbed_official	5:b3b3370574cf	3275	{
mbed_official	5:b3b3370574cf	3276	FRESULT res;
mbed_official	5:b3b3370574cf	3277
mbed_official	5:b3b3370574cf	3278
mbed_official	5:b3b3370574cf	3279	res = validate(dp);
mbed_official	5:b3b3370574cf	3280	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3281	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	3282	FATFS *fs = dp->fs;
mbed_official	5:b3b3370574cf	3283	#endif
mbed_official	5:b3b3370574cf	3284	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3285	if (dp->lockid) /* Decrement sub-directory open counter */
mbed_official	5:b3b3370574cf	3286	res = dec_lock(dp->lockid);
mbed_official	5:b3b3370574cf	3287	if (res == FR_OK)
mbed_official	5:b3b3370574cf	3288	#endif
mbed_official	5:b3b3370574cf	3289	dp->fs = 0; /* Invalidate directory object */
mbed_official	5:b3b3370574cf	3290	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	3291	unlock_fs(fs, FR_OK); /* Unlock volume */
mbed_official	5:b3b3370574cf	3292	#endif
mbed_official	5:b3b3370574cf	3293	}
mbed_official	5:b3b3370574cf	3294	return res;
emilmont	1:46ce1e16c870	3295	}
emilmont	1:46ce1e16c870	3296
emilmont	1:46ce1e16c870	3297
emilmont	1:46ce1e16c870	3298
emilmont	1:46ce1e16c870	3299
emilmont	1:46ce1e16c870	3300	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3301	/* Read Directory Entries in Sequence */
emilmont	1:46ce1e16c870	3302	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3303
emilmont	1:46ce1e16c870	3304	FRESULT f_readdir (
mbed_official	5:b3b3370574cf	3305	FATFS_DIR* dp, /* Pointer to the open directory object */
mbed_official	5:b3b3370574cf	3306	FILINFO* fno /* Pointer to file information to return */
emilmont	1:46ce1e16c870	3307	)
emilmont	1:46ce1e16c870	3308	{
mbed_official	5:b3b3370574cf	3309	FRESULT res;
mbed_official	5:b3b3370574cf	3310	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3311
mbed_official	5:b3b3370574cf	3312
mbed_official	5:b3b3370574cf	3313	res = validate(dp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	3314	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3315	if (!fno) {
mbed_official	5:b3b3370574cf	3316	res = dir_sdi(dp, 0); /* Rewind the directory object */
mbed_official	5:b3b3370574cf	3317	} else {
mbed_official	5:b3b3370574cf	3318	INIT_BUF(*dp);
mbed_official	5:b3b3370574cf	3319	res = dir_read(dp, 0); /* Read an item */
mbed_official	5:b3b3370574cf	3320	if (res == FR_NO_FILE) { /* Reached end of directory */
mbed_official	5:b3b3370574cf	3321	dp->sect = 0;
mbed_official	5:b3b3370574cf	3322	res = FR_OK;
mbed_official	5:b3b3370574cf	3323	}
mbed_official	5:b3b3370574cf	3324	if (res == FR_OK) { /* A valid entry is found */
mbed_official	5:b3b3370574cf	3325	get_fileinfo(dp, fno); /* Get the object information */
mbed_official	5:b3b3370574cf	3326	res = dir_next(dp, 0); /* Increment index for next */
mbed_official	5:b3b3370574cf	3327	if (res == FR_NO_FILE) {
mbed_official	5:b3b3370574cf	3328	dp->sect = 0;
mbed_official	5:b3b3370574cf	3329	res = FR_OK;
mbed_official	5:b3b3370574cf	3330	}
mbed_official	5:b3b3370574cf	3331	}
mbed_official	5:b3b3370574cf	3332	FREE_BUF();
mbed_official	5:b3b3370574cf	3333	}
mbed_official	5:b3b3370574cf	3334	}
mbed_official	5:b3b3370574cf	3335
mbed_official	5:b3b3370574cf	3336	LEAVE_FF(dp->fs, res);
emilmont	1:46ce1e16c870	3337	}
emilmont	1:46ce1e16c870	3338
emilmont	1:46ce1e16c870	3339
emilmont	1:46ce1e16c870	3340
mbed_official	5:b3b3370574cf	3341	#if _USE_FIND
mbed_official	5:b3b3370574cf	3342	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3343	/* Find next file */
mbed_official	5:b3b3370574cf	3344	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3345
mbed_official	5:b3b3370574cf	3346	FRESULT f_findnext (
mbed_official	5:b3b3370574cf	3347	FATFS_DIR* dp, /* Pointer to the open directory object */
mbed_official	5:b3b3370574cf	3348	FILINFO* fno /* Pointer to the file information structure */
mbed_official	5:b3b3370574cf	3349	)
mbed_official	5:b3b3370574cf	3350	{
mbed_official	5:b3b3370574cf	3351	FRESULT res;
mbed_official	5:b3b3370574cf	3352
mbed_official	5:b3b3370574cf	3353
mbed_official	5:b3b3370574cf	3354	for (;;) {
mbed_official	5:b3b3370574cf	3355	res = f_readdir(dp, fno); /* Get a directory item */
mbed_official	5:b3b3370574cf	3356	if (res != FR_OK \|\| !fno \|\| !fno->fname[0]) break; /* Terminate if any error or end of directory */
mbed_official	5:b3b3370574cf	3357	#if _USE_LFN
mbed_official	5:b3b3370574cf	3358	if (fno->lfname && pattern_matching(dp->pat, fno->lfname, 0, 0)) break; /* Test for LFN if exist */
mbed_official	5:b3b3370574cf	3359	#endif
mbed_official	5:b3b3370574cf	3360	if (pattern_matching(dp->pat, fno->fname, 0, 0)) break; /* Test for SFN */
mbed_official	5:b3b3370574cf	3361	}
mbed_official	5:b3b3370574cf	3362	return res;
mbed_official	5:b3b3370574cf	3363
mbed_official	5:b3b3370574cf	3364	}
mbed_official	5:b3b3370574cf	3365
mbed_official	5:b3b3370574cf	3366
mbed_official	5:b3b3370574cf	3367
mbed_official	5:b3b3370574cf	3368	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3369	/* Find first file */
mbed_official	5:b3b3370574cf	3370	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3371
mbed_official	5:b3b3370574cf	3372	FRESULT f_findfirst (
mbed_official	5:b3b3370574cf	3373	FATFS_DIR* dp, /* Pointer to the blank directory object */
mbed_official	5:b3b3370574cf	3374	FILINFO* fno, /* Pointer to the file information structure */
mbed_official	5:b3b3370574cf	3375	const TCHAR* path, /* Pointer to the directory to open */
mbed_official	5:b3b3370574cf	3376	const TCHAR* pattern /* Pointer to the matching pattern */
mbed_official	5:b3b3370574cf	3377	)
mbed_official	5:b3b3370574cf	3378	{
mbed_official	5:b3b3370574cf	3379	FRESULT res;
mbed_official	5:b3b3370574cf	3380
mbed_official	5:b3b3370574cf	3381
mbed_official	5:b3b3370574cf	3382	dp->pat = pattern; /* Save pointer to pattern string */
mbed_official	5:b3b3370574cf	3383	res = f_opendir(dp, path); /* Open the target directory */
mbed_official	5:b3b3370574cf	3384	if (res == FR_OK)
mbed_official	5:b3b3370574cf	3385	res = f_findnext(dp, fno); /* Find the first item */
mbed_official	5:b3b3370574cf	3386	return res;
mbed_official	5:b3b3370574cf	3387	}
mbed_official	5:b3b3370574cf	3388
mbed_official	5:b3b3370574cf	3389	#endif /* _USE_FIND */
mbed_official	5:b3b3370574cf	3390
mbed_official	5:b3b3370574cf	3391
mbed_official	5:b3b3370574cf	3392
emilmont	1:46ce1e16c870	3393	#if _FS_MINIMIZE == 0
emilmont	1:46ce1e16c870	3394	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3395	/* Get File Status */
emilmont	1:46ce1e16c870	3396	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3397
emilmont	1:46ce1e16c870	3398	FRESULT f_stat (
mbed_official	5:b3b3370574cf	3399	const TCHAR* path, /* Pointer to the file path */
mbed_official	5:b3b3370574cf	3400	FILINFO* fno /* Pointer to file information to return */
emilmont	1:46ce1e16c870	3401	)
emilmont	1:46ce1e16c870	3402	{
mbed_official	5:b3b3370574cf	3403	FRESULT res;
mbed_official	5:b3b3370574cf	3404	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3405	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3406
mbed_official	5:b3b3370574cf	3407
mbed_official	5:b3b3370574cf	3408	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3409	res = find_volume(&dj.fs, &path, 0);
mbed_official	5:b3b3370574cf	3410	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3411	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3412	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3413	if (res == FR_OK) { /* Follow completed */
mbed_official	6:a5fcdbf92056	3414	if (dj.dir) { /* Found an object */
mbed_official	5:b3b3370574cf	3415	if (fno) get_fileinfo(&dj, fno);
mbed_official	5:b3b3370574cf	3416	} else { /* It is root directory */
mbed_official	5:b3b3370574cf	3417	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3418	}
mbed_official	5:b3b3370574cf	3419	}
mbed_official	5:b3b3370574cf	3420	FREE_BUF();
mbed_official	5:b3b3370574cf	3421	}
mbed_official	5:b3b3370574cf	3422
mbed_official	5:b3b3370574cf	3423	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3424	}
emilmont	1:46ce1e16c870	3425
emilmont	1:46ce1e16c870	3426
emilmont	1:46ce1e16c870	3427
emilmont	1:46ce1e16c870	3428	#if !_FS_READONLY
emilmont	1:46ce1e16c870	3429	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3430	/* Get Number of Free Clusters */
emilmont	1:46ce1e16c870	3431	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3432
emilmont	1:46ce1e16c870	3433	FRESULT f_getfree (
mbed_official	5:b3b3370574cf	3434	const TCHAR* path, /* Path name of the logical drive number */
mbed_official	5:b3b3370574cf	3435	DWORD* nclst, /* Pointer to a variable to return number of free clusters */
mbed_official	5:b3b3370574cf	3436	FATFS** fatfs /* Pointer to return pointer to corresponding file system object */
emilmont	1:46ce1e16c870	3437	)
emilmont	1:46ce1e16c870	3438	{
mbed_official	5:b3b3370574cf	3439	FRESULT res;
mbed_official	5:b3b3370574cf	3440	FATFS *fs;
mbed_official	6:a5fcdbf92056	3441	DWORD nfree, clst, sect, stat;
mbed_official	5:b3b3370574cf	3442	UINT i;
mbed_official	5:b3b3370574cf	3443	BYTE fat, *p;
mbed_official	5:b3b3370574cf	3444
mbed_official	5:b3b3370574cf	3445
mbed_official	5:b3b3370574cf	3446	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3447	res = find_volume(fatfs, &path, 0);
mbed_official	5:b3b3370574cf	3448	fs = *fatfs;
mbed_official	5:b3b3370574cf	3449	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3450	/* If free_clust is valid, return it without full cluster scan */
mbed_official	5:b3b3370574cf	3451	if (fs->free_clust <= fs->n_fatent - 2) {
mbed_official	5:b3b3370574cf	3452	*nclst = fs->free_clust;
mbed_official	5:b3b3370574cf	3453	} else {
mbed_official	5:b3b3370574cf	3454	/* Get number of free clusters */
mbed_official	5:b3b3370574cf	3455	fat = fs->fs_type;
mbed_official	6:a5fcdbf92056	3456	nfree = 0;
mbed_official	6:a5fcdbf92056	3457	if (fat == FS_FAT12) { /* Sector unalighed entries: Search FAT via regular routine. */
mbed_official	5:b3b3370574cf	3458	clst = 2;
mbed_official	5:b3b3370574cf	3459	do {
mbed_official	5:b3b3370574cf	3460	stat = get_fat(fs, clst);
mbed_official	5:b3b3370574cf	3461	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
mbed_official	5:b3b3370574cf	3462	if (stat == 1) { res = FR_INT_ERR; break; }
mbed_official	6:a5fcdbf92056	3463	if (stat == 0) nfree++;
mbed_official	5:b3b3370574cf	3464	} while (++clst < fs->n_fatent);
mbed_official	6:a5fcdbf92056	3465	} else { /* Sector alighed entries: Accelerate the FAT search. */
mbed_official	6:a5fcdbf92056	3466	clst = fs->n_fatent; sect = fs->fatbase;
mbed_official	5:b3b3370574cf	3467	i = 0; p = 0;
mbed_official	5:b3b3370574cf	3468	do {
mbed_official	5:b3b3370574cf	3469	if (!i) {
mbed_official	5:b3b3370574cf	3470	res = move_window(fs, sect++);
mbed_official	5:b3b3370574cf	3471	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	3472	p = fs->win;
mbed_official	5:b3b3370574cf	3473	i = SS(fs);
mbed_official	5:b3b3370574cf	3474	}
mbed_official	5:b3b3370574cf	3475	if (fat == FS_FAT16) {
mbed_official	6:a5fcdbf92056	3476	if (LD_WORD(p) == 0) nfree++;
mbed_official	5:b3b3370574cf	3477	p += 2; i -= 2;
mbed_official	5:b3b3370574cf	3478	} else {
mbed_official	6:a5fcdbf92056	3479	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) nfree++;
mbed_official	5:b3b3370574cf	3480	p += 4; i -= 4;
mbed_official	5:b3b3370574cf	3481	}
mbed_official	5:b3b3370574cf	3482	} while (--clst);
mbed_official	5:b3b3370574cf	3483	}
mbed_official	6:a5fcdbf92056	3484	fs->free_clust = nfree; /* free_clust is valid */
mbed_official	6:a5fcdbf92056	3485	fs->fsi_flag \|= 1; /* FSInfo is to be updated */
mbed_official	6:a5fcdbf92056	3486	nclst = nfree; / Return the free clusters */
mbed_official	5:b3b3370574cf	3487	}
mbed_official	5:b3b3370574cf	3488	}
mbed_official	5:b3b3370574cf	3489	LEAVE_FF(fs, res);
emilmont	1:46ce1e16c870	3490	}
emilmont	1:46ce1e16c870	3491
emilmont	1:46ce1e16c870	3492
emilmont	1:46ce1e16c870	3493
emilmont	1:46ce1e16c870	3494
emilmont	1:46ce1e16c870	3495	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3496	/* Truncate File */
emilmont	1:46ce1e16c870	3497	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3498
emilmont	1:46ce1e16c870	3499	FRESULT f_truncate (
mbed_official	5:b3b3370574cf	3500	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	3501	)
emilmont	1:46ce1e16c870	3502	{
mbed_official	5:b3b3370574cf	3503	FRESULT res;
mbed_official	5:b3b3370574cf	3504	DWORD ncl;
mbed_official	5:b3b3370574cf	3505
mbed_official	5:b3b3370574cf	3506
mbed_official	5:b3b3370574cf	3507	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	3508	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3509	if (fp->err) { /* Check error */
mbed_official	5:b3b3370574cf	3510	res = (FRESULT)fp->err;
mbed_official	5:b3b3370574cf	3511	} else {
mbed_official	5:b3b3370574cf	3512	if (!(fp->flag & FA_WRITE)) /* Check access mode */
mbed_official	5:b3b3370574cf	3513	res = FR_DENIED;
mbed_official	5:b3b3370574cf	3514	}
mbed_official	5:b3b3370574cf	3515	}
mbed_official	5:b3b3370574cf	3516	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3517	if (fp->fsize > fp->fptr) {
mbed_official	5:b3b3370574cf	3518	fp->fsize = fp->fptr; /* Set file size to current R/W point */
mbed_official	5:b3b3370574cf	3519	fp->flag \|= FA__WRITTEN;
mbed_official	5:b3b3370574cf	3520	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
mbed_official	5:b3b3370574cf	3521	res = remove_chain(fp->fs, fp->sclust);
mbed_official	5:b3b3370574cf	3522	fp->sclust = 0;
mbed_official	5:b3b3370574cf	3523	} else { /* When truncate a part of the file, remove remaining clusters */
mbed_official	5:b3b3370574cf	3524	ncl = get_fat(fp->fs, fp->clust);
mbed_official	5:b3b3370574cf	3525	res = FR_OK;
mbed_official	5:b3b3370574cf	3526	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	3527	if (ncl == 1) res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	3528	if (res == FR_OK && ncl < fp->fs->n_fatent) {
mbed_official	5:b3b3370574cf	3529	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
mbed_official	5:b3b3370574cf	3530	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
mbed_official	5:b3b3370574cf	3531	}
mbed_official	5:b3b3370574cf	3532	}
mbed_official	5:b3b3370574cf	3533	#if !_FS_TINY
mbed_official	5:b3b3370574cf	3534	if (res == FR_OK && (fp->flag & FA__DIRTY)) {
mbed_official	5:b3b3370574cf	3535	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	3536	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	3537	else
mbed_official	5:b3b3370574cf	3538	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	3539	}
mbed_official	5:b3b3370574cf	3540	#endif
mbed_official	5:b3b3370574cf	3541	}
mbed_official	5:b3b3370574cf	3542	if (res != FR_OK) fp->err = (FRESULT)res;
mbed_official	5:b3b3370574cf	3543	}
mbed_official	5:b3b3370574cf	3544
mbed_official	5:b3b3370574cf	3545	LEAVE_FF(fp->fs, res);
emilmont	1:46ce1e16c870	3546	}
emilmont	1:46ce1e16c870	3547
emilmont	1:46ce1e16c870	3548
emilmont	1:46ce1e16c870	3549
emilmont	1:46ce1e16c870	3550
emilmont	1:46ce1e16c870	3551	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3552	/* Delete a File or Directory */
emilmont	1:46ce1e16c870	3553	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3554
emilmont	1:46ce1e16c870	3555	FRESULT f_unlink (
mbed_official	5:b3b3370574cf	3556	const TCHAR* path /* Pointer to the file or directory path */
emilmont	1:46ce1e16c870	3557	)
emilmont	1:46ce1e16c870	3558	{
mbed_official	5:b3b3370574cf	3559	FRESULT res;
mbed_official	5:b3b3370574cf	3560	FATFS_DIR dj, sdj;
mbed_official	6:a5fcdbf92056	3561	BYTE *dir;
mbed_official	5:b3b3370574cf	3562	DWORD dclst = 0;
mbed_official	5:b3b3370574cf	3563	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3564
mbed_official	5:b3b3370574cf	3565
mbed_official	5:b3b3370574cf	3566	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3567	res = find_volume(&dj.fs, &path, 1);
mbed_official	5:b3b3370574cf	3568	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3569	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3570	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3571	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3572	res = FR_INVALID_NAME; /* Cannot remove dot entry */
emilmont	1:46ce1e16c870	3573	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3574	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open object */
emilmont	1:46ce1e16c870	3575	#endif
mbed_official	5:b3b3370574cf	3576	if (res == FR_OK) { /* The object is accessible */
mbed_official	6:a5fcdbf92056	3577	dir = dj.dir;
mbed_official	6:a5fcdbf92056	3578	if (!dir) {
mbed_official	5:b3b3370574cf	3579	res = FR_INVALID_NAME; /* Cannot remove the origin directory */
mbed_official	5:b3b3370574cf	3580	} else {
mbed_official	6:a5fcdbf92056	3581	if (dir[DIR_Attr] & AM_RDO)
mbed_official	5:b3b3370574cf	3582	res = FR_DENIED; /* Cannot remove R/O object */
mbed_official	5:b3b3370574cf	3583	}
mbed_official	5:b3b3370574cf	3584	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	3585	dclst = ld_clust(dj.fs, dir);
mbed_official	6:a5fcdbf92056	3586	if (dclst && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-directory ? */
emilmont	1:46ce1e16c870	3587	#if _FS_RPATH
mbed_official	5:b3b3370574cf	3588	if (dclst == dj.fs->cdir) { /* Is it the current directory? */
mbed_official	5:b3b3370574cf	3589	res = FR_DENIED;
mbed_official	5:b3b3370574cf	3590	} else
emilmont	1:46ce1e16c870	3591	#endif
mbed_official	5:b3b3370574cf	3592	{
mbed_official	5:b3b3370574cf	3593	mem_cpy(&sdj, &dj, sizeof (FATFS_DIR)); /* Open the sub-directory */
mbed_official	5:b3b3370574cf	3594	sdj.sclust = dclst;
mbed_official	5:b3b3370574cf	3595	res = dir_sdi(&sdj, 2);
mbed_official	5:b3b3370574cf	3596	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3597	res = dir_read(&sdj, 0); /* Read an item (excluding dot entries) */
mbed_official	5:b3b3370574cf	3598	if (res == FR_OK) res = FR_DENIED; /* Not empty? (cannot remove) */
mbed_official	5:b3b3370574cf	3599	if (res == FR_NO_FILE) res = FR_OK; /* Empty? (can remove) */
mbed_official	5:b3b3370574cf	3600	}
mbed_official	5:b3b3370574cf	3601	}
mbed_official	5:b3b3370574cf	3602	}
mbed_official	5:b3b3370574cf	3603	}
mbed_official	5:b3b3370574cf	3604	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3605	res = dir_remove(&dj); /* Remove the directory entry */
mbed_official	5:b3b3370574cf	3606	if (res == FR_OK && dclst) /* Remove the cluster chain if exist */
mbed_official	5:b3b3370574cf	3607	res = remove_chain(dj.fs, dclst);
mbed_official	5:b3b3370574cf	3608	if (res == FR_OK) res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3609	}
mbed_official	5:b3b3370574cf	3610	}
mbed_official	5:b3b3370574cf	3611	FREE_BUF();
mbed_official	5:b3b3370574cf	3612	}
mbed_official	5:b3b3370574cf	3613
mbed_official	5:b3b3370574cf	3614	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3615	}
emilmont	1:46ce1e16c870	3616
emilmont	1:46ce1e16c870	3617
emilmont	1:46ce1e16c870	3618
emilmont	1:46ce1e16c870	3619
emilmont	1:46ce1e16c870	3620	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3621	/* Create a Directory */
emilmont	1:46ce1e16c870	3622	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3623
emilmont	1:46ce1e16c870	3624	FRESULT f_mkdir (
mbed_official	5:b3b3370574cf	3625	const TCHAR* path /* Pointer to the directory path */
emilmont	1:46ce1e16c870	3626	)
emilmont	1:46ce1e16c870	3627	{
mbed_official	5:b3b3370574cf	3628	FRESULT res;
mbed_official	5:b3b3370574cf	3629	FATFS_DIR dj;
mbed_official	6:a5fcdbf92056	3630	BYTE *dir, n;
mbed_official	5:b3b3370574cf	3631	DWORD dsc, dcl, pcl, tm = GET_FATTIME();
mbed_official	5:b3b3370574cf	3632	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3633
mbed_official	5:b3b3370574cf	3634
mbed_official	5:b3b3370574cf	3635	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3636	res = find_volume(&dj.fs, &path, 1);
mbed_official	5:b3b3370574cf	3637	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3638	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3639	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3640	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
mbed_official	5:b3b3370574cf	3641	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3642	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3643	if (res == FR_NO_FILE) { /* Can create a new directory */
mbed_official	5:b3b3370574cf	3644	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
mbed_official	5:b3b3370574cf	3645	res = FR_OK;
mbed_official	5:b3b3370574cf	3646	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
mbed_official	5:b3b3370574cf	3647	if (dcl == 1) res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	3648	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	3649	if (res == FR_OK) /* Flush FAT */
mbed_official	5:b3b3370574cf	3650	res = sync_window(dj.fs);
mbed_official	5:b3b3370574cf	3651	if (res == FR_OK) { /* Initialize the new directory table */
mbed_official	5:b3b3370574cf	3652	dsc = clust2sect(dj.fs, dcl);
mbed_official	6:a5fcdbf92056	3653	dir = dj.fs->win;
mbed_official	6:a5fcdbf92056	3654	mem_set(dir, 0, SS(dj.fs));
mbed_official	6:a5fcdbf92056	3655	mem_set(dir + DIR_Name, ' ', 11); /* Create "." entry */
mbed_official	6:a5fcdbf92056	3656	dir[DIR_Name] = '.';
mbed_official	6:a5fcdbf92056	3657	dir[DIR_Attr] = AM_DIR;
mbed_official	6:a5fcdbf92056	3658	ST_DWORD(dir + DIR_WrtTime, tm);
mbed_official	6:a5fcdbf92056	3659	st_clust(dir, dcl);
mbed_official	6:a5fcdbf92056	3660	mem_cpy(dir + SZ_DIRE, dir, SZ_DIRE); /* Create ".." entry */
mbed_official	6:a5fcdbf92056	3661	dir[SZ_DIRE + 1] = '.'; pcl = dj.sclust;
mbed_official	5:b3b3370574cf	3662	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
mbed_official	5:b3b3370574cf	3663	pcl = 0;
mbed_official	6:a5fcdbf92056	3664	st_clust(dir + SZ_DIRE, pcl);
mbed_official	5:b3b3370574cf	3665	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
mbed_official	5:b3b3370574cf	3666	dj.fs->winsect = dsc++;
mbed_official	5:b3b3370574cf	3667	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3668	res = sync_window(dj.fs);
mbed_official	5:b3b3370574cf	3669	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	3670	mem_set(dir, 0, SS(dj.fs));
mbed_official	5:b3b3370574cf	3671	}
mbed_official	5:b3b3370574cf	3672	}
mbed_official	5:b3b3370574cf	3673	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
mbed_official	5:b3b3370574cf	3674	if (res != FR_OK) {
mbed_official	5:b3b3370574cf	3675	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
mbed_official	5:b3b3370574cf	3676	} else {
mbed_official	6:a5fcdbf92056	3677	dir = dj.dir;
mbed_official	6:a5fcdbf92056	3678	dir[DIR_Attr] = AM_DIR; /* Attribute */
mbed_official	6:a5fcdbf92056	3679	ST_DWORD(dir + DIR_WrtTime, tm); /* Created time */
mbed_official	6:a5fcdbf92056	3680	st_clust(dir, dcl); /* Table start cluster */
mbed_official	5:b3b3370574cf	3681	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3682	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3683	}
mbed_official	5:b3b3370574cf	3684	}
mbed_official	5:b3b3370574cf	3685	FREE_BUF();
mbed_official	5:b3b3370574cf	3686	}
mbed_official	5:b3b3370574cf	3687
mbed_official	5:b3b3370574cf	3688	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3689	}
emilmont	1:46ce1e16c870	3690
emilmont	1:46ce1e16c870	3691
emilmont	1:46ce1e16c870	3692
emilmont	1:46ce1e16c870	3693
emilmont	1:46ce1e16c870	3694	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3695	/* Change Attribute */
emilmont	1:46ce1e16c870	3696	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3697
emilmont	1:46ce1e16c870	3698	FRESULT f_chmod (
mbed_official	5:b3b3370574cf	3699	const TCHAR* path, /* Pointer to the file path */
mbed_official	5:b3b3370574cf	3700	BYTE attr, /* Attribute bits */
mbed_official	5:b3b3370574cf	3701	BYTE mask /* Attribute mask to change */
emilmont	1:46ce1e16c870	3702	)
emilmont	1:46ce1e16c870	3703	{
mbed_official	5:b3b3370574cf	3704	FRESULT res;
mbed_official	5:b3b3370574cf	3705	FATFS_DIR dj;
mbed_official	6:a5fcdbf92056	3706	BYTE *dir;
mbed_official	5:b3b3370574cf	3707	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3708
mbed_official	5:b3b3370574cf	3709
mbed_official	6:a5fcdbf92056	3710	res = find_volume(&dj.fs, &path, 1); /* Get logical drive number */
mbed_official	5:b3b3370574cf	3711	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3712	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3713	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3714	FREE_BUF();
mbed_official	5:b3b3370574cf	3715	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3716	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3717	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	3718	dir = dj.dir;
mbed_official	6:a5fcdbf92056	3719	if (!dir) { /* Is it a root directory? */
mbed_official	5:b3b3370574cf	3720	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3721	} else { /* File or sub directory */
mbed_official	5:b3b3370574cf	3722	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
mbed_official	6:a5fcdbf92056	3723	dir[DIR_Attr] = (attr & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
mbed_official	5:b3b3370574cf	3724	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3725	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3726	}
mbed_official	5:b3b3370574cf	3727	}
mbed_official	5:b3b3370574cf	3728	}
mbed_official	5:b3b3370574cf	3729
mbed_official	5:b3b3370574cf	3730	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3731	}
emilmont	1:46ce1e16c870	3732
emilmont	1:46ce1e16c870	3733
emilmont	1:46ce1e16c870	3734
emilmont	1:46ce1e16c870	3735
emilmont	1:46ce1e16c870	3736	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3737	/* Rename File/Directory */
emilmont	1:46ce1e16c870	3738	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3739
emilmont	1:46ce1e16c870	3740	FRESULT f_rename (
mbed_official	5:b3b3370574cf	3741	const TCHAR* path_old, /* Pointer to the object to be renamed */
mbed_official	5:b3b3370574cf	3742	const TCHAR* path_new /* Pointer to the new name */
emilmont	1:46ce1e16c870	3743	)
emilmont	1:46ce1e16c870	3744	{
mbed_official	5:b3b3370574cf	3745	FRESULT res;
mbed_official	5:b3b3370574cf	3746	FATFS_DIR djo, djn;
mbed_official	6:a5fcdbf92056	3747	BYTE buf[21], *dir;
mbed_official	5:b3b3370574cf	3748	DWORD dw;
mbed_official	5:b3b3370574cf	3749	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3750
mbed_official	5:b3b3370574cf	3751
mbed_official	5:b3b3370574cf	3752	/* Get logical drive number of the source object */
mbed_official	5:b3b3370574cf	3753	res = find_volume(&djo.fs, &path_old, 1);
mbed_official	5:b3b3370574cf	3754	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3755	djn.fs = djo.fs;
mbed_official	5:b3b3370574cf	3756	INIT_BUF(djo);
mbed_official	5:b3b3370574cf	3757	res = follow_path(&djo, path_old); /* Check old object */
mbed_official	5:b3b3370574cf	3758	if (_FS_RPATH && res == FR_OK && (djo.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3759	res = FR_INVALID_NAME;
emilmont	1:46ce1e16c870	3760	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3761	if (res == FR_OK) res = chk_lock(&djo, 2);
emilmont	1:46ce1e16c870	3762	#endif
mbed_official	5:b3b3370574cf	3763	if (res == FR_OK) { /* Old object is found */
mbed_official	6:a5fcdbf92056	3764	if (!djo.dir) { /* Is root dir? */
mbed_official	5:b3b3370574cf	3765	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	3766	} else {
mbed_official	6:a5fcdbf92056	3767	mem_cpy(buf, djo.dir + DIR_Attr, 21); /* Save information about object except name */
mbed_official	5:b3b3370574cf	3768	mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Duplicate the directory object */
mbed_official	5:b3b3370574cf	3769	if (get_ldnumber(&path_new) >= 0) /* Snip drive number off and ignore it */
mbed_official	5:b3b3370574cf	3770	res = follow_path(&djn, path_new); /* and make sure if new object name is not conflicting */
mbed_official	5:b3b3370574cf	3771	else
mbed_official	5:b3b3370574cf	3772	res = FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	3773	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
mbed_official	5:b3b3370574cf	3774	if (res == FR_NO_FILE) { /* It is a valid path and no name collision */
mbed_official	5:b3b3370574cf	3775	res = dir_register(&djn); /* Register the new entry */
mbed_official	5:b3b3370574cf	3776	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3777	/* Start of critical section where any interruption can cause a cross-link */
mbed_official	6:a5fcdbf92056	3778	dir = djn.dir; /* Copy information about object except name */
mbed_official	6:a5fcdbf92056	3779	mem_cpy(dir + 13, buf + 2, 19);
mbed_official	6:a5fcdbf92056	3780	dir[DIR_Attr] = buf[0] \| AM_ARC;
mbed_official	5:b3b3370574cf	3781	djo.fs->wflag = 1;
mbed_official	6:a5fcdbf92056	3782	if ((dir[DIR_Attr] & AM_DIR) && djo.sclust != djn.sclust) { /* Update .. entry in the sub-directory if needed */
mbed_official	6:a5fcdbf92056	3783	dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
mbed_official	5:b3b3370574cf	3784	if (!dw) {
mbed_official	5:b3b3370574cf	3785	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	3786	} else {
mbed_official	5:b3b3370574cf	3787	res = move_window(djo.fs, dw);
mbed_official	6:a5fcdbf92056	3788	dir = djo.fs->win + SZ_DIRE * 1; /* Ptr to .. entry */
mbed_official	6:a5fcdbf92056	3789	if (res == FR_OK && dir[1] == '.') {
mbed_official	6:a5fcdbf92056	3790	st_clust(dir, djn.sclust);
mbed_official	5:b3b3370574cf	3791	djo.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3792	}
mbed_official	5:b3b3370574cf	3793	}
mbed_official	5:b3b3370574cf	3794	}
mbed_official	5:b3b3370574cf	3795	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3796	res = dir_remove(&djo); /* Remove old entry */
mbed_official	5:b3b3370574cf	3797	if (res == FR_OK)
mbed_official	5:b3b3370574cf	3798	res = sync_fs(djo.fs);
mbed_official	5:b3b3370574cf	3799	}
mbed_official	5:b3b3370574cf	3800	/* End of critical section */
mbed_official	5:b3b3370574cf	3801	}
mbed_official	5:b3b3370574cf	3802	}
mbed_official	5:b3b3370574cf	3803	}
mbed_official	5:b3b3370574cf	3804	}
mbed_official	5:b3b3370574cf	3805	FREE_BUF();
mbed_official	5:b3b3370574cf	3806	}
mbed_official	5:b3b3370574cf	3807
mbed_official	5:b3b3370574cf	3808	LEAVE_FF(djo.fs, res);
mbed_official	5:b3b3370574cf	3809	}
mbed_official	5:b3b3370574cf	3810
mbed_official	5:b3b3370574cf	3811
mbed_official	5:b3b3370574cf	3812
mbed_official	5:b3b3370574cf	3813
mbed_official	5:b3b3370574cf	3814	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3815	/* Change Timestamp */
mbed_official	5:b3b3370574cf	3816	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3817
mbed_official	5:b3b3370574cf	3818	FRESULT f_utime (
mbed_official	5:b3b3370574cf	3819	const TCHAR* path, /* Pointer to the file/directory name */
mbed_official	5:b3b3370574cf	3820	const FILINFO* fno /* Pointer to the time stamp to be set */
mbed_official	5:b3b3370574cf	3821	)
mbed_official	5:b3b3370574cf	3822	{
mbed_official	5:b3b3370574cf	3823	FRESULT res;
mbed_official	5:b3b3370574cf	3824	FATFS_DIR dj;
mbed_official	6:a5fcdbf92056	3825	BYTE *dir;
mbed_official	5:b3b3370574cf	3826	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3827
mbed_official	5:b3b3370574cf	3828
mbed_official	5:b3b3370574cf	3829	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3830	res = find_volume(&dj.fs, &path, 1);
mbed_official	5:b3b3370574cf	3831	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3832	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3833	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3834	FREE_BUF();
mbed_official	5:b3b3370574cf	3835	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3836	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3837	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	3838	dir = dj.dir;
mbed_official	6:a5fcdbf92056	3839	if (!dir) { /* Root directory */
mbed_official	5:b3b3370574cf	3840	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3841	} else { /* File or sub-directory */
mbed_official	6:a5fcdbf92056	3842	ST_WORD(dir + DIR_WrtTime, fno->ftime);
mbed_official	6:a5fcdbf92056	3843	ST_WORD(dir + DIR_WrtDate, fno->fdate);
mbed_official	5:b3b3370574cf	3844	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3845	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3846	}
mbed_official	5:b3b3370574cf	3847	}
mbed_official	5:b3b3370574cf	3848	}
mbed_official	5:b3b3370574cf	3849
mbed_official	5:b3b3370574cf	3850	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3851	}
emilmont	1:46ce1e16c870	3852
emilmont	1:46ce1e16c870	3853	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	3854	#endif /* _FS_MINIMIZE == 0 */
emilmont	1:46ce1e16c870	3855	#endif /* _FS_MINIMIZE <= 1 */
emilmont	1:46ce1e16c870	3856	#endif /* _FS_MINIMIZE <= 2 */
emilmont	1:46ce1e16c870	3857
emilmont	1:46ce1e16c870	3858
emilmont	1:46ce1e16c870	3859
mbed_official	5:b3b3370574cf	3860
mbed_official	5:b3b3370574cf	3861	#if _USE_LABEL
mbed_official	5:b3b3370574cf	3862	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3863	/* Get volume label */
mbed_official	5:b3b3370574cf	3864	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3865
mbed_official	5:b3b3370574cf	3866	FRESULT f_getlabel (
mbed_official	5:b3b3370574cf	3867	const TCHAR* path, /* Path name of the logical drive number */
mbed_official	5:b3b3370574cf	3868	TCHAR* label, /* Pointer to a buffer to return the volume label */
mbed_official	5:b3b3370574cf	3869	DWORD* vsn /* Pointer to a variable to return the volume serial number */
mbed_official	5:b3b3370574cf	3870	)
mbed_official	5:b3b3370574cf	3871	{
mbed_official	5:b3b3370574cf	3872	FRESULT res;
mbed_official	5:b3b3370574cf	3873	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3874	UINT i, j;
mbed_official	5:b3b3370574cf	3875	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	3876	WCHAR w;
mbed_official	5:b3b3370574cf	3877	#endif
mbed_official	5:b3b3370574cf	3878
mbed_official	5:b3b3370574cf	3879
mbed_official	5:b3b3370574cf	3880	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3881	res = find_volume(&dj.fs, &path, 0);
mbed_official	5:b3b3370574cf	3882
mbed_official	5:b3b3370574cf	3883	/* Get volume label */
mbed_official	5:b3b3370574cf	3884	if (res == FR_OK && label) {
mbed_official	5:b3b3370574cf	3885	dj.sclust = 0; /* Open root directory */
mbed_official	5:b3b3370574cf	3886	res = dir_sdi(&dj, 0);
mbed_official	5:b3b3370574cf	3887	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3888	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
mbed_official	5:b3b3370574cf	3889	if (res == FR_OK) { /* A volume label is exist */
mbed_official	5:b3b3370574cf	3890	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	3891	i = j = 0;
mbed_official	5:b3b3370574cf	3892	do {
mbed_official	6:a5fcdbf92056	3893	w = (i < 11) ? dj.dir[i++] : ' ';
mbed_official	6:a5fcdbf92056	3894	if (IsDBCS1(w) && i < 11 && IsDBCS2(dj.dir[i]))
mbed_official	6:a5fcdbf92056	3895	w = w << 8 \| dj.dir[i++];
mbed_official	5:b3b3370574cf	3896	label[j++] = ff_convert(w, 1); /* OEM -> Unicode */
mbed_official	5:b3b3370574cf	3897	} while (j < 11);
mbed_official	5:b3b3370574cf	3898	#else
mbed_official	6:a5fcdbf92056	3899	mem_cpy(label, dj.dir, 11);
mbed_official	5:b3b3370574cf	3900	#endif
mbed_official	5:b3b3370574cf	3901	j = 11;
mbed_official	5:b3b3370574cf	3902	do {
mbed_official	5:b3b3370574cf	3903	label[j] = 0;
mbed_official	5:b3b3370574cf	3904	if (!j) break;
mbed_official	5:b3b3370574cf	3905	} while (label[--j] == ' ');
mbed_official	5:b3b3370574cf	3906	}
mbed_official	5:b3b3370574cf	3907	if (res == FR_NO_FILE) { /* No label, return nul string */
mbed_official	5:b3b3370574cf	3908	label[0] = 0;
mbed_official	5:b3b3370574cf	3909	res = FR_OK;
mbed_official	5:b3b3370574cf	3910	}
mbed_official	5:b3b3370574cf	3911	}
mbed_official	5:b3b3370574cf	3912	}
mbed_official	5:b3b3370574cf	3913
mbed_official	5:b3b3370574cf	3914	/* Get volume serial number */
mbed_official	5:b3b3370574cf	3915	if (res == FR_OK && vsn) {
mbed_official	5:b3b3370574cf	3916	res = move_window(dj.fs, dj.fs->volbase);
mbed_official	5:b3b3370574cf	3917	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3918	i = dj.fs->fs_type == FS_FAT32 ? BS_VolID32 : BS_VolID;
mbed_official	5:b3b3370574cf	3919	*vsn = LD_DWORD(&dj.fs->win[i]);
mbed_official	5:b3b3370574cf	3920	}
mbed_official	5:b3b3370574cf	3921	}
mbed_official	5:b3b3370574cf	3922
mbed_official	5:b3b3370574cf	3923	LEAVE_FF(dj.fs, res);
mbed_official	5:b3b3370574cf	3924	}
mbed_official	5:b3b3370574cf	3925
mbed_official	5:b3b3370574cf	3926
mbed_official	5:b3b3370574cf	3927
mbed_official	5:b3b3370574cf	3928	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3929	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3930	/* Set volume label */
mbed_official	5:b3b3370574cf	3931	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3932
mbed_official	5:b3b3370574cf	3933	FRESULT f_setlabel (
mbed_official	5:b3b3370574cf	3934	const TCHAR* label /* Pointer to the volume label to set */
mbed_official	5:b3b3370574cf	3935	)
mbed_official	5:b3b3370574cf	3936	{
mbed_official	5:b3b3370574cf	3937	FRESULT res;
mbed_official	5:b3b3370574cf	3938	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3939	BYTE vn[11];
mbed_official	5:b3b3370574cf	3940	UINT i, j, sl;
mbed_official	5:b3b3370574cf	3941	WCHAR w;
mbed_official	5:b3b3370574cf	3942	DWORD tm;
mbed_official	5:b3b3370574cf	3943
mbed_official	5:b3b3370574cf	3944
mbed_official	5:b3b3370574cf	3945	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3946	res = find_volume(&dj.fs, &label, 1);
mbed_official	5:b3b3370574cf	3947	if (res) LEAVE_FF(dj.fs, res);
mbed_official	5:b3b3370574cf	3948
mbed_official	5:b3b3370574cf	3949	/* Create a volume label in directory form */
mbed_official	5:b3b3370574cf	3950	vn[0] = 0;
mbed_official	5:b3b3370574cf	3951	for (sl = 0; label[sl]; sl++) ; /* Get name length */
mbed_official	5:b3b3370574cf	3952	for ( ; sl && label[sl - 1] == ' '; sl--) ; /* Remove trailing spaces */
mbed_official	5:b3b3370574cf	3953	if (sl) { /* Create volume label in directory form */
mbed_official	5:b3b3370574cf	3954	i = j = 0;
mbed_official	5:b3b3370574cf	3955	do {
mbed_official	5:b3b3370574cf	3956	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	3957	w = ff_convert(ff_wtoupper(label[i++]), 0);
mbed_official	5:b3b3370574cf	3958	#else
mbed_official	5:b3b3370574cf	3959	w = (BYTE)label[i++];
mbed_official	5:b3b3370574cf	3960	if (IsDBCS1(w))
mbed_official	5:b3b3370574cf	3961	w = (j < 10 && i < sl && IsDBCS2(label[i])) ? w << 8 \| (BYTE)label[i++] : 0;
mbed_official	5:b3b3370574cf	3962	#if _USE_LFN
mbed_official	5:b3b3370574cf	3963	w = ff_convert(ff_wtoupper(ff_convert(w, 1)), 0);
mbed_official	5:b3b3370574cf	3964	#else
mbed_official	5:b3b3370574cf	3965	if (IsLower(w)) w -= 0x20; /* To upper ASCII characters */
mbed_official	5:b3b3370574cf	3966	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	3967	if (w >= 0x80) w = ExCvt[w - 0x80]; /* To upper extended characters (SBCS cfg) */
mbed_official	5:b3b3370574cf	3968	#else
mbed_official	5:b3b3370574cf	3969	if (!_DF1S && w >= 0x80) w = 0; /* Reject extended characters (ASCII cfg) */
mbed_official	5:b3b3370574cf	3970	#endif
mbed_official	5:b3b3370574cf	3971	#endif
mbed_official	5:b3b3370574cf	3972	#endif
mbed_official	5:b3b3370574cf	3973	if (!w \|\| chk_chr("\"+,.:;<=>\?[]\|\x7F", w) \|\| j >= (UINT)((w >= 0x100) ? 10 : 11)) / Reject invalid characters for volume label */
mbed_official	5:b3b3370574cf	3974	LEAVE_FF(dj.fs, FR_INVALID_NAME);
mbed_official	5:b3b3370574cf	3975	if (w >= 0x100) vn[j++] = (BYTE)(w >> 8);
mbed_official	5:b3b3370574cf	3976	vn[j++] = (BYTE)w;
mbed_official	5:b3b3370574cf	3977	} while (i < sl);
mbed_official	5:b3b3370574cf	3978	while (j < 11) vn[j++] = ' '; /* Fill remaining name field */
mbed_official	5:b3b3370574cf	3979	if (vn[0] == DDEM) LEAVE_FF(dj.fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */
mbed_official	5:b3b3370574cf	3980	}
mbed_official	5:b3b3370574cf	3981
mbed_official	5:b3b3370574cf	3982	/* Set volume label */
mbed_official	5:b3b3370574cf	3983	dj.sclust = 0; /* Open root directory */
mbed_official	5:b3b3370574cf	3984	res = dir_sdi(&dj, 0);
mbed_official	5:b3b3370574cf	3985	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3986	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
mbed_official	5:b3b3370574cf	3987	if (res == FR_OK) { /* A volume label is found */
mbed_official	5:b3b3370574cf	3988	if (vn[0]) {
mbed_official	6:a5fcdbf92056	3989	mem_cpy(dj.dir, vn, 11); /* Change the volume label name */
mbed_official	5:b3b3370574cf	3990	tm = GET_FATTIME();
mbed_official	6:a5fcdbf92056	3991	ST_DWORD(dj.dir + DIR_WrtTime, tm);
mbed_official	5:b3b3370574cf	3992	} else {
mbed_official	6:a5fcdbf92056	3993	dj.dir[0] = DDEM; /* Remove the volume label */
mbed_official	5:b3b3370574cf	3994	}
mbed_official	5:b3b3370574cf	3995	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3996	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3997	} else { /* No volume label is found or error */
mbed_official	5:b3b3370574cf	3998	if (res == FR_NO_FILE) {
mbed_official	5:b3b3370574cf	3999	res = FR_OK;
mbed_official	5:b3b3370574cf	4000	if (vn[0]) { /* Create volume label as new */
mbed_official	5:b3b3370574cf	4001	res = dir_alloc(&dj, 1); /* Allocate an entry for volume label */
mbed_official	5:b3b3370574cf	4002	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	4003	mem_set(dj.dir, 0, SZ_DIRE); /* Set volume label */
mbed_official	6:a5fcdbf92056	4004	mem_cpy(dj.dir, vn, 11);
mbed_official	6:a5fcdbf92056	4005	dj.dir[DIR_Attr] = AM_VOL;
mbed_official	5:b3b3370574cf	4006	tm = GET_FATTIME();
mbed_official	6:a5fcdbf92056	4007	ST_DWORD(dj.dir + DIR_WrtTime, tm);
mbed_official	5:b3b3370574cf	4008	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	4009	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	4010	}
mbed_official	5:b3b3370574cf	4011	}
mbed_official	5:b3b3370574cf	4012	}
mbed_official	5:b3b3370574cf	4013	}
mbed_official	5:b3b3370574cf	4014	}
mbed_official	5:b3b3370574cf	4015
mbed_official	5:b3b3370574cf	4016	LEAVE_FF(dj.fs, res);
mbed_official	5:b3b3370574cf	4017	}
mbed_official	5:b3b3370574cf	4018
mbed_official	5:b3b3370574cf	4019	#endif /* !_FS_READONLY */
mbed_official	5:b3b3370574cf	4020	#endif /* _USE_LABEL */
mbed_official	5:b3b3370574cf	4021
mbed_official	5:b3b3370574cf	4022
mbed_official	5:b3b3370574cf	4023
emilmont	1:46ce1e16c870	4024	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4025	/* Forward data to the stream directly (available on only tiny cfg) */
emilmont	1:46ce1e16c870	4026	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4027	#if _USE_FORWARD && _FS_TINY
emilmont	1:46ce1e16c870	4028
emilmont	1:46ce1e16c870	4029	FRESULT f_forward (
mbed_official	5:b3b3370574cf	4030	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	4031	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
mbed_official	5:b3b3370574cf	4032	UINT btf, /* Number of bytes to forward */
mbed_official	5:b3b3370574cf	4033	UINT* bf /* Pointer to number of bytes forwarded */
emilmont	1:46ce1e16c870	4034	)
emilmont	1:46ce1e16c870	4035	{
mbed_official	5:b3b3370574cf	4036	FRESULT res;
mbed_official	5:b3b3370574cf	4037	DWORD remain, clst, sect;
mbed_official	5:b3b3370574cf	4038	UINT rcnt;
mbed_official	5:b3b3370574cf	4039	BYTE csect;
mbed_official	5:b3b3370574cf	4040
mbed_official	5:b3b3370574cf	4041
mbed_official	5:b3b3370574cf	4042	bf = 0; / Clear transfer byte counter */
mbed_official	5:b3b3370574cf	4043
mbed_official	5:b3b3370574cf	4044	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	4045	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	4046	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	4047	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mbed_official	5:b3b3370574cf	4048	if (!(fp->flag & FA_READ)) /* Check access mode */
mbed_official	5:b3b3370574cf	4049	LEAVE_FF(fp->fs, FR_DENIED);
mbed_official	5:b3b3370574cf	4050
mbed_official	5:b3b3370574cf	4051	remain = fp->fsize - fp->fptr;
mbed_official	5:b3b3370574cf	4052	if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */
mbed_official	5:b3b3370574cf	4053
mbed_official	5:b3b3370574cf	4054	for ( ; btf && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
mbed_official	5:b3b3370574cf	4055	fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {
mbed_official	5:b3b3370574cf	4056	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mbed_official	5:b3b3370574cf	4057	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mbed_official	5:b3b3370574cf	4058	if (!csect) { /* On the cluster boundary? */
mbed_official	5:b3b3370574cf	4059	clst = (fp->fptr == 0) ? /* On the top of the file? */
mbed_official	5:b3b3370574cf	4060	fp->sclust : get_fat(fp->fs, fp->clust);
mbed_official	5:b3b3370574cf	4061	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	4062	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	4063	fp->clust = clst; /* Update current cluster */
mbed_official	5:b3b3370574cf	4064	}
mbed_official	5:b3b3370574cf	4065	}
mbed_official	5:b3b3370574cf	4066	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
mbed_official	5:b3b3370574cf	4067	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	4068	sect += csect;
mbed_official	5:b3b3370574cf	4069	if (move_window(fp->fs, sect) != FR_OK) /* Move sector window */
mbed_official	5:b3b3370574cf	4070	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	4071	fp->dsect = sect;
mbed_official	5:b3b3370574cf	4072	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
mbed_official	5:b3b3370574cf	4073	if (rcnt > btf) rcnt = btf;
mbed_official	5:b3b3370574cf	4074	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
mbed_official	5:b3b3370574cf	4075	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	4076	}
mbed_official	5:b3b3370574cf	4077
mbed_official	5:b3b3370574cf	4078	LEAVE_FF(fp->fs, FR_OK);
emilmont	1:46ce1e16c870	4079	}
emilmont	1:46ce1e16c870	4080	#endif /* _USE_FORWARD */
emilmont	1:46ce1e16c870	4081
emilmont	1:46ce1e16c870	4082
emilmont	1:46ce1e16c870	4083
emilmont	1:46ce1e16c870	4084	#if _USE_MKFS && !_FS_READONLY
emilmont	1:46ce1e16c870	4085	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4086	/* Create file system on the logical drive */
emilmont	1:46ce1e16c870	4087	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4088	#define N_ROOTDIR 512 /* Number of root directory entries for FAT12/16 */
mbed_official	5:b3b3370574cf	4089	#define N_FATS 1 /* Number of FATs (1 or 2) */
emilmont	1:46ce1e16c870	4090
emilmont	1:46ce1e16c870	4091
emilmont	1:46ce1e16c870	4092	FRESULT f_mkfs (
mbed_official	5:b3b3370574cf	4093	const TCHAR* path, /* Logical drive number */
mbed_official	5:b3b3370574cf	4094	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
mbed_official	5:b3b3370574cf	4095	UINT au /* Size of allocation unit in unit of byte or sector */
emilmont	1:46ce1e16c870	4096	)
emilmont	1:46ce1e16c870	4097	{
mbed_official	5:b3b3370574cf	4098	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
mbed_official	5:b3b3370574cf	4099	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
mbed_official	5:b3b3370574cf	4100	int vol;
mbed_official	5:b3b3370574cf	4101	BYTE fmt, md, sys, *tbl, pdrv, part;
mbed_official	5:b3b3370574cf	4102	DWORD n_clst, vs, n, wsect;
mbed_official	5:b3b3370574cf	4103	UINT i;
mbed_official	5:b3b3370574cf	4104	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
mbed_official	5:b3b3370574cf	4105	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
mbed_official	5:b3b3370574cf	4106	FATFS *fs;
mbed_official	5:b3b3370574cf	4107	DSTATUS stat;
mbed_official	5:b3b3370574cf	4108	#if _USE_TRIM
mbed_official	5:b3b3370574cf	4109	DWORD eb[2];
mbed_official	5:b3b3370574cf	4110	#endif
mbed_official	5:b3b3370574cf	4111
mbed_official	5:b3b3370574cf	4112
mbed_official	5:b3b3370574cf	4113	/* Check mounted drive and clear work area */
mbed_official	5:b3b3370574cf	4114	if (sfd > 1) return FR_INVALID_PARAMETER;
mbed_official	5:b3b3370574cf	4115	vol = get_ldnumber(&path);
mbed_official	5:b3b3370574cf	4116	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	4117	fs = FatFs[vol];
mbed_official	5:b3b3370574cf	4118	if (!fs) return FR_NOT_ENABLED;
mbed_official	5:b3b3370574cf	4119	fs->fs_type = 0;
mbed_official	5:b3b3370574cf	4120	pdrv = LD2PD(vol); /* Physical drive */
mbed_official	5:b3b3370574cf	4121	part = LD2PT(vol); /* Partition (0:auto detect, 1-4:get from partition table)*/
mbed_official	5:b3b3370574cf	4122
mbed_official	5:b3b3370574cf	4123	/* Get disk statics */
mbed_official	5:b3b3370574cf	4124	stat = disk_initialize(pdrv);
mbed_official	5:b3b3370574cf	4125	if (stat & STA_NOINIT) return FR_NOT_READY;
mbed_official	5:b3b3370574cf	4126	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	4127	#if _MAX_SS != _MIN_SS /* Get disk sector size */
mbed_official	5:b3b3370574cf	4128	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS \|\| SS(fs) < _MIN_SS)
mbed_official	5:b3b3370574cf	4129	return FR_DISK_ERR;
emilmont	1:46ce1e16c870	4130	#endif
mbed_official	5:b3b3370574cf	4131	if (_MULTI_PARTITION && part) {
mbed_official	5:b3b3370574cf	4132	/* Get partition information from partition table in the MBR */
mbed_official	5:b3b3370574cf	4133	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4134	if (LD_WORD(fs->win + BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
mbed_official	5:b3b3370574cf	4135	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mbed_official	5:b3b3370574cf	4136	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
mbed_official	5:b3b3370574cf	4137	b_vol = LD_DWORD(tbl + 8); /* Volume start sector */
mbed_official	5:b3b3370574cf	4138	n_vol = LD_DWORD(tbl + 12); /* Volume size */
mbed_official	5:b3b3370574cf	4139	} else {
mbed_official	5:b3b3370574cf	4140	/* Create a partition in this function */
mbed_official	5:b3b3370574cf	4141	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
mbed_official	5:b3b3370574cf	4142	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4143	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
mbed_official	5:b3b3370574cf	4144	n_vol -= b_vol; /* Volume size */
mbed_official	5:b3b3370574cf	4145	}
mbed_official	5:b3b3370574cf	4146
mbed_official	5:b3b3370574cf	4147	if (au & (au - 1)) au = 0;
mbed_official	5:b3b3370574cf	4148	if (!au) { /* AU auto selection */
mbed_official	5:b3b3370574cf	4149	vs = n_vol / (2000 / (SS(fs) / 512));
mbed_official	5:b3b3370574cf	4150	for (i = 0; vs < vst[i]; i++) ;
mbed_official	5:b3b3370574cf	4151	au = cst[i];
mbed_official	5:b3b3370574cf	4152	}
mbed_official	5:b3b3370574cf	4153	if (au >= _MIN_SS) au /= SS(fs); /* Number of sectors per cluster */
mbed_official	5:b3b3370574cf	4154	if (!au) au = 1;
mbed_official	5:b3b3370574cf	4155	if (au > 128) au = 128;
mbed_official	5:b3b3370574cf	4156
mbed_official	5:b3b3370574cf	4157	/* Pre-compute number of clusters and FAT sub-type */
mbed_official	5:b3b3370574cf	4158	n_clst = n_vol / au;
mbed_official	5:b3b3370574cf	4159	fmt = FS_FAT12;
mbed_official	5:b3b3370574cf	4160	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
mbed_official	5:b3b3370574cf	4161	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
mbed_official	5:b3b3370574cf	4162
mbed_official	5:b3b3370574cf	4163	/* Determine offset and size of FAT structure */
mbed_official	5:b3b3370574cf	4164	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4165	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
mbed_official	5:b3b3370574cf	4166	n_rsv = 32;
mbed_official	5:b3b3370574cf	4167	n_dir = 0;
mbed_official	5:b3b3370574cf	4168	} else {
mbed_official	5:b3b3370574cf	4169	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
mbed_official	5:b3b3370574cf	4170	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
mbed_official	5:b3b3370574cf	4171	n_rsv = 1;
mbed_official	5:b3b3370574cf	4172	n_dir = (DWORD)N_ROOTDIR * SZ_DIRE / SS(fs);
mbed_official	5:b3b3370574cf	4173	}
mbed_official	5:b3b3370574cf	4174	b_fat = b_vol + n_rsv; /* FAT area start sector */
mbed_official	5:b3b3370574cf	4175	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
mbed_official	5:b3b3370574cf	4176	b_data = b_dir + n_dir; /* Data area start sector */
mbed_official	5:b3b3370574cf	4177	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
mbed_official	5:b3b3370574cf	4178
mbed_official	5:b3b3370574cf	4179	/* Align data start sector to erase block boundary (for flash memory media) */
mbed_official	5:b3b3370574cf	4180	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
mbed_official	5:b3b3370574cf	4181	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
mbed_official	5:b3b3370574cf	4182	n = (n - b_data) / N_FATS;
mbed_official	5:b3b3370574cf	4183	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
mbed_official	5:b3b3370574cf	4184	n_rsv += n;
mbed_official	5:b3b3370574cf	4185	b_fat += n;
mbed_official	5:b3b3370574cf	4186	} else { /* FAT12/16: Expand FAT size */
mbed_official	5:b3b3370574cf	4187	n_fat += n;
mbed_official	5:b3b3370574cf	4188	}
mbed_official	5:b3b3370574cf	4189
mbed_official	5:b3b3370574cf	4190	/* Determine number of clusters and final check of validity of the FAT sub-type */
mbed_official	5:b3b3370574cf	4191	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
mbed_official	5:b3b3370574cf	4192	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
mbed_official	5:b3b3370574cf	4193	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
mbed_official	5:b3b3370574cf	4194	return FR_MKFS_ABORTED;
mbed_official	5:b3b3370574cf	4195
mbed_official	5:b3b3370574cf	4196	/* Determine system ID in the partition table */
mbed_official	5:b3b3370574cf	4197	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4198	sys = 0x0C; /* FAT32X */
mbed_official	5:b3b3370574cf	4199	} else {
mbed_official	5:b3b3370574cf	4200	if (fmt == FS_FAT12 && n_vol < 0x10000) {
mbed_official	5:b3b3370574cf	4201	sys = 0x01; /* FAT12(<65536) */
mbed_official	5:b3b3370574cf	4202	} else {
mbed_official	5:b3b3370574cf	4203	sys = (n_vol < 0x10000) ? 0x04 : 0x06; /* FAT16(<65536) : FAT12/16(>=65536) */
mbed_official	5:b3b3370574cf	4204	}
mbed_official	5:b3b3370574cf	4205	}
mbed_official	5:b3b3370574cf	4206
mbed_official	5:b3b3370574cf	4207	if (_MULTI_PARTITION && part) {
mbed_official	5:b3b3370574cf	4208	/* Update system ID in the partition table */
mbed_official	5:b3b3370574cf	4209	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mbed_official	5:b3b3370574cf	4210	tbl[4] = sys;
mbed_official	5:b3b3370574cf	4211	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to teh MBR */
mbed_official	5:b3b3370574cf	4212	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4213	md = 0xF8;
mbed_official	5:b3b3370574cf	4214	} else {
mbed_official	5:b3b3370574cf	4215	if (sfd) { /* No partition table (SFD) */
mbed_official	5:b3b3370574cf	4216	md = 0xF0;
mbed_official	5:b3b3370574cf	4217	} else { /* Create partition table (FDISK) */
mbed_official	5:b3b3370574cf	4218	mem_set(fs->win, 0, SS(fs));
mbed_official	5:b3b3370574cf	4219	tbl = fs->win + MBR_Table; /* Create partition table for single partition in the drive */
mbed_official	5:b3b3370574cf	4220	tbl[1] = 1; /* Partition start head */
mbed_official	5:b3b3370574cf	4221	tbl[2] = 1; /* Partition start sector */
mbed_official	5:b3b3370574cf	4222	tbl[3] = 0; /* Partition start cylinder */
mbed_official	5:b3b3370574cf	4223	tbl[4] = sys; /* System type */
mbed_official	5:b3b3370574cf	4224	tbl[5] = 254; /* Partition end head */
mbed_official	5:b3b3370574cf	4225	n = (b_vol + n_vol) / 63 / 255;
mbed_official	5:b3b3370574cf	4226	tbl[6] = (BYTE)(n >> 2 \| 63); /* Partition end sector */
mbed_official	5:b3b3370574cf	4227	tbl[7] = (BYTE)n; /* End cylinder */
mbed_official	5:b3b3370574cf	4228	ST_DWORD(tbl + 8, 63); /* Partition start in LBA */
mbed_official	5:b3b3370574cf	4229	ST_DWORD(tbl + 12, n_vol); /* Partition size in LBA */
mbed_official	5:b3b3370574cf	4230	ST_WORD(fs->win + BS_55AA, 0xAA55); /* MBR signature */
mbed_official	5:b3b3370574cf	4231	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR */
mbed_official	5:b3b3370574cf	4232	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4233	md = 0xF8;
mbed_official	5:b3b3370574cf	4234	}
mbed_official	5:b3b3370574cf	4235	}
mbed_official	5:b3b3370574cf	4236
mbed_official	5:b3b3370574cf	4237	/* Create BPB in the VBR */
mbed_official	5:b3b3370574cf	4238	tbl = fs->win; /* Clear sector */
mbed_official	5:b3b3370574cf	4239	mem_set(tbl, 0, SS(fs));
mbed_official	5:b3b3370574cf	4240	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
mbed_official	5:b3b3370574cf	4241	i = SS(fs); /* Sector size */
mbed_official	5:b3b3370574cf	4242	ST_WORD(tbl + BPB_BytsPerSec, i);
mbed_official	5:b3b3370574cf	4243	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
mbed_official	5:b3b3370574cf	4244	ST_WORD(tbl + BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
mbed_official	5:b3b3370574cf	4245	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
mbed_official	5:b3b3370574cf	4246	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of root directory entries */
mbed_official	5:b3b3370574cf	4247	ST_WORD(tbl + BPB_RootEntCnt, i);
mbed_official	5:b3b3370574cf	4248	if (n_vol < 0x10000) { /* Number of total sectors */
mbed_official	5:b3b3370574cf	4249	ST_WORD(tbl + BPB_TotSec16, n_vol);
mbed_official	5:b3b3370574cf	4250	} else {
mbed_official	5:b3b3370574cf	4251	ST_DWORD(tbl + BPB_TotSec32, n_vol);
mbed_official	5:b3b3370574cf	4252	}
mbed_official	5:b3b3370574cf	4253	tbl[BPB_Media] = md; /* Media descriptor */
mbed_official	5:b3b3370574cf	4254	ST_WORD(tbl + BPB_SecPerTrk, 63); /* Number of sectors per track */
mbed_official	5:b3b3370574cf	4255	ST_WORD(tbl + BPB_NumHeads, 255); /* Number of heads */
mbed_official	5:b3b3370574cf	4256	ST_DWORD(tbl + BPB_HiddSec, b_vol); /* Hidden sectors */
mbed_official	5:b3b3370574cf	4257	n = GET_FATTIME(); /* Use current time as VSN */
mbed_official	5:b3b3370574cf	4258	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4259	ST_DWORD(tbl + BS_VolID32, n); /* VSN */
mbed_official	5:b3b3370574cf	4260	ST_DWORD(tbl + BPB_FATSz32, n_fat); /* Number of sectors per FAT */
mbed_official	5:b3b3370574cf	4261	ST_DWORD(tbl + BPB_RootClus, 2); /* Root directory start cluster (2) */
mbed_official	5:b3b3370574cf	4262	ST_WORD(tbl + BPB_FSInfo, 1); /* FSINFO record offset (VBR + 1) */
mbed_official	5:b3b3370574cf	4263	ST_WORD(tbl + BPB_BkBootSec, 6); /* Backup boot record offset (VBR + 6) */
mbed_official	5:b3b3370574cf	4264	tbl[BS_DrvNum32] = 0x80; /* Drive number */
mbed_official	5:b3b3370574cf	4265	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
mbed_official	5:b3b3370574cf	4266	mem_cpy(tbl + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
mbed_official	5:b3b3370574cf	4267	} else {
mbed_official	5:b3b3370574cf	4268	ST_DWORD(tbl + BS_VolID, n); /* VSN */
mbed_official	5:b3b3370574cf	4269	ST_WORD(tbl + BPB_FATSz16, n_fat); /* Number of sectors per FAT */
mbed_official	5:b3b3370574cf	4270	tbl[BS_DrvNum] = 0x80; /* Drive number */
mbed_official	5:b3b3370574cf	4271	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
mbed_official	5:b3b3370574cf	4272	mem_cpy(tbl + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
mbed_official	5:b3b3370574cf	4273	}
mbed_official	5:b3b3370574cf	4274	ST_WORD(tbl + BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
mbed_official	5:b3b3370574cf	4275	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
mbed_official	5:b3b3370574cf	4276	return FR_DISK_ERR;
mbed_official	6:a5fcdbf92056	4277	if (fmt == FS_FAT32) /* Write it to the backup VBR if needed (VBR + 6) */
mbed_official	5:b3b3370574cf	4278	disk_write(pdrv, tbl, b_vol + 6, 1);
mbed_official	5:b3b3370574cf	4279
mbed_official	5:b3b3370574cf	4280	/* Initialize FAT area */
mbed_official	5:b3b3370574cf	4281	wsect = b_fat;
mbed_official	5:b3b3370574cf	4282	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
mbed_official	5:b3b3370574cf	4283	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
mbed_official	5:b3b3370574cf	4284	n = md; /* Media descriptor byte */
mbed_official	5:b3b3370574cf	4285	if (fmt != FS_FAT32) {
mbed_official	5:b3b3370574cf	4286	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
mbed_official	5:b3b3370574cf	4287	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT12/16) */
mbed_official	5:b3b3370574cf	4288	} else {
mbed_official	5:b3b3370574cf	4289	n \|= 0xFFFFFF00;
mbed_official	5:b3b3370574cf	4290	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT32) */
mbed_official	5:b3b3370574cf	4291	ST_DWORD(tbl + 4, 0xFFFFFFFF);
mbed_official	5:b3b3370574cf	4292	ST_DWORD(tbl + 8, 0x0FFFFFFF); /* Reserve cluster #2 for root directory */
mbed_official	5:b3b3370574cf	4293	}
mbed_official	5:b3b3370574cf	4294	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mbed_official	5:b3b3370574cf	4295	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4296	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
mbed_official	5:b3b3370574cf	4297	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	4298	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mbed_official	5:b3b3370574cf	4299	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4300	}
mbed_official	5:b3b3370574cf	4301	}
mbed_official	5:b3b3370574cf	4302
mbed_official	5:b3b3370574cf	4303	/* Initialize root directory */
mbed_official	5:b3b3370574cf	4304	i = (fmt == FS_FAT32) ? au : (UINT)n_dir;
mbed_official	5:b3b3370574cf	4305	do {
mbed_official	5:b3b3370574cf	4306	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mbed_official	5:b3b3370574cf	4307	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4308	} while (--i);
mbed_official	5:b3b3370574cf	4309
mbed_official	5:b3b3370574cf	4310	#if _USE_TRIM /* Erase data area if needed */
mbed_official	5:b3b3370574cf	4311	{
mbed_official	5:b3b3370574cf	4312	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
mbed_official	5:b3b3370574cf	4313	disk_ioctl(pdrv, CTRL_TRIM, eb);
mbed_official	5:b3b3370574cf	4314	}
emilmont	1:46ce1e16c870	4315	#endif
emilmont	1:46ce1e16c870	4316
mbed_official	5:b3b3370574cf	4317	/* Create FSINFO if needed */
mbed_official	5:b3b3370574cf	4318	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4319	ST_DWORD(tbl + FSI_LeadSig, 0x41615252);
mbed_official	5:b3b3370574cf	4320	ST_DWORD(tbl + FSI_StrucSig, 0x61417272);
mbed_official	5:b3b3370574cf	4321	ST_DWORD(tbl + FSI_Free_Count, n_clst - 1); /* Number of free clusters */
mbed_official	5:b3b3370574cf	4322	ST_DWORD(tbl + FSI_Nxt_Free, 2); /* Last allocated cluster# */
mbed_official	5:b3b3370574cf	4323	ST_WORD(tbl + BS_55AA, 0xAA55);
mbed_official	5:b3b3370574cf	4324	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR + 1) */
mbed_official	5:b3b3370574cf	4325	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR + 7) */
mbed_official	5:b3b3370574cf	4326	}
mbed_official	5:b3b3370574cf	4327
mbed_official	5:b3b3370574cf	4328	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
emilmont	1:46ce1e16c870	4329	}
emilmont	1:46ce1e16c870	4330
emilmont	1:46ce1e16c870	4331
mbed_official	5:b3b3370574cf	4332
mbed_official	5:b3b3370574cf	4333	#if _MULTI_PARTITION
emilmont	1:46ce1e16c870	4334	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4335	/* Create partition table on the physical drive */
emilmont	1:46ce1e16c870	4336	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4337
emilmont	1:46ce1e16c870	4338	FRESULT f_fdisk (
mbed_official	5:b3b3370574cf	4339	BYTE pdrv, /* Physical drive number */
mbed_official	5:b3b3370574cf	4340	const DWORD szt[], /* Pointer to the size table for each partitions */
mbed_official	5:b3b3370574cf	4341	void* work /* Pointer to the working buffer */
emilmont	1:46ce1e16c870	4342	)
emilmont	1:46ce1e16c870	4343	{
mbed_official	5:b3b3370574cf	4344	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
mbed_official	5:b3b3370574cf	4345	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
mbed_official	5:b3b3370574cf	4346	DSTATUS stat;
mbed_official	5:b3b3370574cf	4347	DWORD sz_disk, sz_part, s_part;
mbed_official	5:b3b3370574cf	4348
mbed_official	5:b3b3370574cf	4349
mbed_official	5:b3b3370574cf	4350	stat = disk_initialize(pdrv);
mbed_official	5:b3b3370574cf	4351	if (stat & STA_NOINIT) return FR_NOT_READY;
mbed_official	5:b3b3370574cf	4352	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	4353	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4354
mbed_official	5:b3b3370574cf	4355	/* Determine CHS in the table regardless of the drive geometry */
mbed_official	5:b3b3370574cf	4356	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
mbed_official	5:b3b3370574cf	4357	if (n == 256) n--;
mbed_official	5:b3b3370574cf	4358	e_hd = n - 1;
mbed_official	5:b3b3370574cf	4359	sz_cyl = 63 * n;
mbed_official	5:b3b3370574cf	4360	tot_cyl = sz_disk / sz_cyl;
mbed_official	5:b3b3370574cf	4361
mbed_official	5:b3b3370574cf	4362	/* Create partition table */
mbed_official	5:b3b3370574cf	4363	mem_set(buf, 0, _MAX_SS);
mbed_official	5:b3b3370574cf	4364	p = buf + MBR_Table; b_cyl = 0;
mbed_official	5:b3b3370574cf	4365	for (i = 0; i < 4; i++, p += SZ_PTE) {
mbed_official	5:b3b3370574cf	4366	p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
mbed_official	5:b3b3370574cf	4367	if (!p_cyl) continue;
mbed_official	5:b3b3370574cf	4368	s_part = (DWORD)sz_cyl * b_cyl;
mbed_official	5:b3b3370574cf	4369	sz_part = (DWORD)sz_cyl * p_cyl;
mbed_official	5:b3b3370574cf	4370	if (i == 0) { /* Exclude first track of cylinder 0 */
mbed_official	5:b3b3370574cf	4371	s_hd = 1;
mbed_official	5:b3b3370574cf	4372	s_part += 63; sz_part -= 63;
mbed_official	5:b3b3370574cf	4373	} else {
mbed_official	5:b3b3370574cf	4374	s_hd = 0;
mbed_official	5:b3b3370574cf	4375	}
mbed_official	5:b3b3370574cf	4376	e_cyl = b_cyl + p_cyl - 1;
mbed_official	5:b3b3370574cf	4377	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
mbed_official	5:b3b3370574cf	4378
mbed_official	5:b3b3370574cf	4379	/* Set partition table */
mbed_official	5:b3b3370574cf	4380	p[1] = s_hd; /* Start head */
mbed_official	5:b3b3370574cf	4381	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
mbed_official	5:b3b3370574cf	4382	p[3] = (BYTE)b_cyl; /* Start cylinder */
mbed_official	5:b3b3370574cf	4383	p[4] = 0x06; /* System type (temporary setting) */
mbed_official	5:b3b3370574cf	4384	p[5] = e_hd; /* End head */
mbed_official	5:b3b3370574cf	4385	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
mbed_official	5:b3b3370574cf	4386	p[7] = (BYTE)e_cyl; /* End cylinder */
mbed_official	5:b3b3370574cf	4387	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
mbed_official	5:b3b3370574cf	4388	ST_DWORD(p + 12, sz_part); /* Partition size */
mbed_official	5:b3b3370574cf	4389
mbed_official	5:b3b3370574cf	4390	/* Next partition */
mbed_official	5:b3b3370574cf	4391	b_cyl += p_cyl;
mbed_official	5:b3b3370574cf	4392	}
mbed_official	5:b3b3370574cf	4393	ST_WORD(p, 0xAA55);
mbed_official	5:b3b3370574cf	4394
mbed_official	5:b3b3370574cf	4395	/* Write it to the MBR */
mbed_official	5:b3b3370574cf	4396	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	4397	}
emilmont	1:46ce1e16c870	4398
emilmont	1:46ce1e16c870	4399
mbed_official	5:b3b3370574cf	4400	#endif /* _MULTI_PARTITION */
emilmont	1:46ce1e16c870	4401	#endif /* _USE_MKFS && !_FS_READONLY */
emilmont	1:46ce1e16c870	4402
emilmont	1:46ce1e16c870	4403
emilmont	1:46ce1e16c870	4404
emilmont	1:46ce1e16c870	4405
emilmont	1:46ce1e16c870	4406	#if _USE_STRFUNC
emilmont	1:46ce1e16c870	4407	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4408	/* Get a string from the file */
emilmont	1:46ce1e16c870	4409	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4410
emilmont	1:46ce1e16c870	4411	TCHAR* f_gets (
mbed_official	5:b3b3370574cf	4412	TCHAR* buff, /* Pointer to the string buffer to read */
mbed_official	5:b3b3370574cf	4413	int len, /* Size of string buffer (characters) */
mbed_official	5:b3b3370574cf	4414	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	4415	)
emilmont	1:46ce1e16c870	4416	{
mbed_official	5:b3b3370574cf	4417	int n = 0;
mbed_official	5:b3b3370574cf	4418	TCHAR c, *p = buff;
mbed_official	5:b3b3370574cf	4419	BYTE s[2];
mbed_official	5:b3b3370574cf	4420	UINT rc;
mbed_official	5:b3b3370574cf	4421
mbed_official	5:b3b3370574cf	4422
mbed_official	5:b3b3370574cf	4423	while (n < len - 1) { /* Read characters until buffer gets filled */
mbed_official	5:b3b3370574cf	4424	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	4425	#if _STRF_ENCODE == 3 /* Read a character in UTF-8 */
mbed_official	5:b3b3370574cf	4426	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4427	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4428	c = s[0];
mbed_official	5:b3b3370574cf	4429	if (c >= 0x80) {
mbed_official	5:b3b3370574cf	4430	if (c < 0xC0) continue; /* Skip stray trailer */
mbed_official	5:b3b3370574cf	4431	if (c < 0xE0) { /* Two-byte sequence */
mbed_official	5:b3b3370574cf	4432	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4433	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4434	c = (c & 0x1F) << 6 \| (s[0] & 0x3F);
mbed_official	5:b3b3370574cf	4435	if (c < 0x80) c = '?';
mbed_official	5:b3b3370574cf	4436	} else {
mbed_official	5:b3b3370574cf	4437	if (c < 0xF0) { /* Three-byte sequence */
mbed_official	5:b3b3370574cf	4438	f_read(fp, s, 2, &rc);
mbed_official	5:b3b3370574cf	4439	if (rc != 2) break;
mbed_official	5:b3b3370574cf	4440	c = c << 12 \| (s[0] & 0x3F) << 6 \| (s[1] & 0x3F);
mbed_official	5:b3b3370574cf	4441	if (c < 0x800) c = '?';
mbed_official	5:b3b3370574cf	4442	} else { /* Reject four-byte sequence */
mbed_official	5:b3b3370574cf	4443	c = '?';
mbed_official	5:b3b3370574cf	4444	}
mbed_official	5:b3b3370574cf	4445	}
mbed_official	5:b3b3370574cf	4446	}
mbed_official	5:b3b3370574cf	4447	#elif _STRF_ENCODE == 2 /* Read a character in UTF-16BE */
mbed_official	5:b3b3370574cf	4448	f_read(fp, s, 2, &rc);
mbed_official	5:b3b3370574cf	4449	if (rc != 2) break;
mbed_official	5:b3b3370574cf	4450	c = s[1] + (s[0] << 8);
mbed_official	5:b3b3370574cf	4451	#elif _STRF_ENCODE == 1 /* Read a character in UTF-16LE */
mbed_official	5:b3b3370574cf	4452	f_read(fp, s, 2, &rc);
mbed_official	5:b3b3370574cf	4453	if (rc != 2) break;
mbed_official	5:b3b3370574cf	4454	c = s[0] + (s[1] << 8);
mbed_official	5:b3b3370574cf	4455	#else /* Read a character in ANSI/OEM */
mbed_official	5:b3b3370574cf	4456	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4457	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4458	c = s[0];
mbed_official	5:b3b3370574cf	4459	if (IsDBCS1(c)) {
mbed_official	5:b3b3370574cf	4460	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4461	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4462	c = (c << 8) + s[0];
mbed_official	5:b3b3370574cf	4463	}
mbed_official	5:b3b3370574cf	4464	c = ff_convert(c, 1); /* OEM -> Unicode */
mbed_official	5:b3b3370574cf	4465	if (!c) c = '?';
emilmont	1:46ce1e16c870	4466	#endif
mbed_official	5:b3b3370574cf	4467	#else /* Read a character without conversion */
mbed_official	5:b3b3370574cf	4468	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4469	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4470	c = s[0];
emilmont	1:46ce1e16c870	4471	#endif
mbed_official	5:b3b3370574cf	4472	if (_USE_STRFUNC == 2 && c == '\r') continue; /* Strip '\r' */
mbed_official	5:b3b3370574cf	4473	*p++ = c;
mbed_official	5:b3b3370574cf	4474	n++;
mbed_official	5:b3b3370574cf	4475	if (c == '\n') break; /* Break on EOL */
mbed_official	5:b3b3370574cf	4476	}
mbed_official	5:b3b3370574cf	4477	*p = 0;
mbed_official	5:b3b3370574cf	4478	return n ? buff : 0; /* When no data read (eof or error), return with error. */
emilmont	1:46ce1e16c870	4479	}
emilmont	1:46ce1e16c870	4480
emilmont	1:46ce1e16c870	4481
emilmont	1:46ce1e16c870	4482
mbed_official	5:b3b3370574cf	4483
emilmont	1:46ce1e16c870	4484	#if !_FS_READONLY
emilmont	1:46ce1e16c870	4485	#include <stdarg.h>
emilmont	1:46ce1e16c870	4486	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4487	/* Put a character to the file */
emilmont	1:46ce1e16c870	4488	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4489
mbed_official	5:b3b3370574cf	4490	typedef struct {
mbed_official	5:b3b3370574cf	4491	FIL* fp;
mbed_official	5:b3b3370574cf	4492	int idx, nchr;
mbed_official	5:b3b3370574cf	4493	BYTE buf[64];
mbed_official	5:b3b3370574cf	4494	} putbuff;
mbed_official	5:b3b3370574cf	4495
mbed_official	5:b3b3370574cf	4496
mbed_official	5:b3b3370574cf	4497	static
mbed_official	5:b3b3370574cf	4498	void putc_bfd (
mbed_official	5:b3b3370574cf	4499	putbuff* pb,
mbed_official	5:b3b3370574cf	4500	TCHAR c
emilmont	1:46ce1e16c870	4501	)
emilmont	1:46ce1e16c870	4502	{
mbed_official	5:b3b3370574cf	4503	UINT bw;
mbed_official	5:b3b3370574cf	4504	int i;
mbed_official	5:b3b3370574cf	4505
mbed_official	5:b3b3370574cf	4506
mbed_official	5:b3b3370574cf	4507	if (_USE_STRFUNC == 2 && c == '\n') /* LF -> CRLF conversion */
mbed_official	5:b3b3370574cf	4508	putc_bfd(pb, '\r');
mbed_official	5:b3b3370574cf	4509
mbed_official	5:b3b3370574cf	4510	i = pb->idx; /* Buffer write index (-1:error) */
mbed_official	5:b3b3370574cf	4511	if (i < 0) return;
mbed_official	5:b3b3370574cf	4512
mbed_official	5:b3b3370574cf	4513	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	4514	#if _STRF_ENCODE == 3 /* Write a character in UTF-8 */
mbed_official	5:b3b3370574cf	4515	if (c < 0x80) { /* 7-bit */
mbed_official	5:b3b3370574cf	4516	pb->buf[i++] = (BYTE)c;
mbed_official	5:b3b3370574cf	4517	} else {
mbed_official	5:b3b3370574cf	4518	if (c < 0x800) { /* 11-bit */
mbed_official	5:b3b3370574cf	4519	pb->buf[i++] = (BYTE)(0xC0 \| c >> 6);
mbed_official	5:b3b3370574cf	4520	} else { /* 16-bit */
mbed_official	5:b3b3370574cf	4521	pb->buf[i++] = (BYTE)(0xE0 \| c >> 12);
mbed_official	5:b3b3370574cf	4522	pb->buf[i++] = (BYTE)(0x80 \| (c >> 6 & 0x3F));
mbed_official	5:b3b3370574cf	4523	}
mbed_official	5:b3b3370574cf	4524	pb->buf[i++] = (BYTE)(0x80 \| (c & 0x3F));
mbed_official	5:b3b3370574cf	4525	}
mbed_official	5:b3b3370574cf	4526	#elif _STRF_ENCODE == 2 /* Write a character in UTF-16BE */
mbed_official	5:b3b3370574cf	4527	pb->buf[i++] = (BYTE)(c >> 8);
mbed_official	5:b3b3370574cf	4528	pb->buf[i++] = (BYTE)c;
mbed_official	5:b3b3370574cf	4529	#elif _STRF_ENCODE == 1 /* Write a character in UTF-16LE */
mbed_official	5:b3b3370574cf	4530	pb->buf[i++] = (BYTE)c;
mbed_official	5:b3b3370574cf	4531	pb->buf[i++] = (BYTE)(c >> 8);
mbed_official	5:b3b3370574cf	4532	#else /* Write a character in ANSI/OEM */
mbed_official	5:b3b3370574cf	4533	c = ff_convert(c, 0); /* Unicode -> OEM */
mbed_official	5:b3b3370574cf	4534	if (!c) c = '?';
mbed_official	5:b3b3370574cf	4535	if (c >= 0x100)
mbed_official	5:b3b3370574cf	4536	pb->buf[i++] = (BYTE)(c >> 8);
mbed_official	5:b3b3370574cf	4537	pb->buf[i++] = (BYTE)c;
emilmont	1:46ce1e16c870	4538	#endif
mbed_official	5:b3b3370574cf	4539	#else /* Write a character without conversion */
mbed_official	5:b3b3370574cf	4540	pb->buf[i++] = (BYTE)c;
emilmont	1:46ce1e16c870	4541	#endif
mbed_official	5:b3b3370574cf	4542
mbed_official	5:b3b3370574cf	4543	if (i >= (int)(sizeof pb->buf) - 3) { /* Write buffered characters to the file */
mbed_official	5:b3b3370574cf	4544	f_write(pb->fp, pb->buf, (UINT)i, &bw);
mbed_official	5:b3b3370574cf	4545	i = (bw == (UINT)i) ? 0 : -1;
mbed_official	5:b3b3370574cf	4546	}
mbed_official	5:b3b3370574cf	4547	pb->idx = i;
mbed_official	5:b3b3370574cf	4548	pb->nchr++;
mbed_official	5:b3b3370574cf	4549	}
mbed_official	5:b3b3370574cf	4550
mbed_official	5:b3b3370574cf	4551
mbed_official	5:b3b3370574cf	4552
mbed_official	5:b3b3370574cf	4553	int f_putc (
mbed_official	5:b3b3370574cf	4554	TCHAR c, /* A character to be output */
mbed_official	5:b3b3370574cf	4555	FIL* fp /* Pointer to the file object */
mbed_official	5:b3b3370574cf	4556	)
mbed_official	5:b3b3370574cf	4557	{
mbed_official	5:b3b3370574cf	4558	putbuff pb;
mbed_official	5:b3b3370574cf	4559	UINT nw;
mbed_official	5:b3b3370574cf	4560
mbed_official	5:b3b3370574cf	4561
mbed_official	5:b3b3370574cf	4562	pb.fp = fp; /* Initialize output buffer */
mbed_official	5:b3b3370574cf	4563	pb.nchr = pb.idx = 0;
mbed_official	5:b3b3370574cf	4564
mbed_official	5:b3b3370574cf	4565	putc_bfd(&pb, c); /* Put a character */
mbed_official	5:b3b3370574cf	4566
mbed_official	5:b3b3370574cf	4567	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mbed_official	5:b3b3370574cf	4568	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mbed_official	5:b3b3370574cf	4569	&& (UINT)pb.idx == nw) return pb.nchr;
mbed_official	5:b3b3370574cf	4570	return EOF;
emilmont	1:46ce1e16c870	4571	}
emilmont	1:46ce1e16c870	4572
emilmont	1:46ce1e16c870	4573
emilmont	1:46ce1e16c870	4574
emilmont	1:46ce1e16c870	4575
emilmont	1:46ce1e16c870	4576	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4577	/* Put a string to the file */
emilmont	1:46ce1e16c870	4578	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4579
emilmont	1:46ce1e16c870	4580	int f_puts (
mbed_official	5:b3b3370574cf	4581	const TCHAR* str, /* Pointer to the string to be output */
mbed_official	5:b3b3370574cf	4582	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	4583	)
emilmont	1:46ce1e16c870	4584	{
mbed_official	5:b3b3370574cf	4585	putbuff pb;
mbed_official	5:b3b3370574cf	4586	UINT nw;
mbed_official	5:b3b3370574cf	4587
mbed_official	5:b3b3370574cf	4588
mbed_official	5:b3b3370574cf	4589	pb.fp = fp; /* Initialize output buffer */
mbed_official	5:b3b3370574cf	4590	pb.nchr = pb.idx = 0;
mbed_official	5:b3b3370574cf	4591
mbed_official	5:b3b3370574cf	4592	while (str) / Put the string */
mbed_official	5:b3b3370574cf	4593	putc_bfd(&pb, *str++);
mbed_official	5:b3b3370574cf	4594
mbed_official	5:b3b3370574cf	4595	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mbed_official	5:b3b3370574cf	4596	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mbed_official	5:b3b3370574cf	4597	&& (UINT)pb.idx == nw) return pb.nchr;
mbed_official	5:b3b3370574cf	4598	return EOF;
emilmont	1:46ce1e16c870	4599	}
emilmont	1:46ce1e16c870	4600
emilmont	1:46ce1e16c870	4601
emilmont	1:46ce1e16c870	4602
emilmont	1:46ce1e16c870	4603
emilmont	1:46ce1e16c870	4604	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4605	/* Put a formatted string to the file */
emilmont	1:46ce1e16c870	4606	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4607
emilmont	1:46ce1e16c870	4608	int f_printf (
mbed_official	5:b3b3370574cf	4609	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	4610	const TCHAR* fmt, /* Pointer to the format string */
mbed_official	5:b3b3370574cf	4611	... /* Optional arguments... */
emilmont	1:46ce1e16c870	4612	)
emilmont	1:46ce1e16c870	4613	{
mbed_official	5:b3b3370574cf	4614	va_list arp;
mbed_official	5:b3b3370574cf	4615	BYTE f, r;
mbed_official	5:b3b3370574cf	4616	UINT nw, i, j, w;
mbed_official	5:b3b3370574cf	4617	DWORD v;
mbed_official	5:b3b3370574cf	4618	TCHAR c, d, s[16], *p;
mbed_official	5:b3b3370574cf	4619	putbuff pb;
mbed_official	5:b3b3370574cf	4620
mbed_official	5:b3b3370574cf	4621
mbed_official	5:b3b3370574cf	4622	pb.fp = fp; /* Initialize output buffer */
mbed_official	5:b3b3370574cf	4623	pb.nchr = pb.idx = 0;
mbed_official	5:b3b3370574cf	4624
mbed_official	5:b3b3370574cf	4625	va_start(arp, fmt);
mbed_official	5:b3b3370574cf	4626
mbed_official	5:b3b3370574cf	4627	for (;;) {
mbed_official	5:b3b3370574cf	4628	c = *fmt++;
mbed_official	5:b3b3370574cf	4629	if (c == 0) break; /* End of string */
mbed_official	5:b3b3370574cf	4630	if (c != '%') { /* Non escape character */
mbed_official	5:b3b3370574cf	4631	putc_bfd(&pb, c);
mbed_official	5:b3b3370574cf	4632	continue;
mbed_official	5:b3b3370574cf	4633	}
mbed_official	5:b3b3370574cf	4634	w = f = 0;
mbed_official	5:b3b3370574cf	4635	c = *fmt++;
mbed_official	5:b3b3370574cf	4636	if (c == '0') { /* Flag: '0' padding */
mbed_official	5:b3b3370574cf	4637	f = 1; c = *fmt++;
mbed_official	5:b3b3370574cf	4638	} else {
mbed_official	5:b3b3370574cf	4639	if (c == '-') { /* Flag: left justified */
mbed_official	5:b3b3370574cf	4640	f = 2; c = *fmt++;
mbed_official	5:b3b3370574cf	4641	}
mbed_official	5:b3b3370574cf	4642	}
mbed_official	5:b3b3370574cf	4643	while (IsDigit(c)) { /* Precision */
mbed_official	5:b3b3370574cf	4644	w = w * 10 + c - '0';
mbed_official	5:b3b3370574cf	4645	c = *fmt++;
mbed_official	5:b3b3370574cf	4646	}
mbed_official	5:b3b3370574cf	4647	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
mbed_official	5:b3b3370574cf	4648	f \|= 4; c = *fmt++;
mbed_official	5:b3b3370574cf	4649	}
mbed_official	5:b3b3370574cf	4650	if (!c) break;
mbed_official	5:b3b3370574cf	4651	d = c;
mbed_official	5:b3b3370574cf	4652	if (IsLower(d)) d -= 0x20;
mbed_official	5:b3b3370574cf	4653	switch (d) { /* Type is... */
mbed_official	5:b3b3370574cf	4654	case 'S' : /* String */
mbed_official	5:b3b3370574cf	4655	p = va_arg(arp, TCHAR*);
mbed_official	5:b3b3370574cf	4656	for (j = 0; p[j]; j++) ;
mbed_official	5:b3b3370574cf	4657	if (!(f & 2)) {
mbed_official	5:b3b3370574cf	4658	while (j++ < w) putc_bfd(&pb, ' ');
mbed_official	5:b3b3370574cf	4659	}
mbed_official	5:b3b3370574cf	4660	while (p) putc_bfd(&pb, p++);
mbed_official	5:b3b3370574cf	4661	while (j++ < w) putc_bfd(&pb, ' ');
mbed_official	5:b3b3370574cf	4662	continue;
mbed_official	5:b3b3370574cf	4663	case 'C' : /* Character */
mbed_official	5:b3b3370574cf	4664	putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue;
mbed_official	5:b3b3370574cf	4665	case 'B' : /* Binary */
mbed_official	5:b3b3370574cf	4666	r = 2; break;
mbed_official	5:b3b3370574cf	4667	case 'O' : /* Octal */
mbed_official	5:b3b3370574cf	4668	r = 8; break;
mbed_official	5:b3b3370574cf	4669	case 'D' : /* Signed decimal */
mbed_official	5:b3b3370574cf	4670	case 'U' : /* Unsigned decimal */
mbed_official	5:b3b3370574cf	4671	r = 10; break;
mbed_official	5:b3b3370574cf	4672	case 'X' : /* Hexdecimal */
mbed_official	5:b3b3370574cf	4673	r = 16; break;
mbed_official	5:b3b3370574cf	4674	default: /* Unknown type (pass-through) */
mbed_official	5:b3b3370574cf	4675	putc_bfd(&pb, c); continue;
mbed_official	5:b3b3370574cf	4676	}
mbed_official	5:b3b3370574cf	4677
mbed_official	5:b3b3370574cf	4678	/* Get an argument and put it in numeral */
mbed_official	5:b3b3370574cf	4679	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	4680	if (d == 'D' && (v & 0x80000000)) {
mbed_official	5:b3b3370574cf	4681	v = 0 - v;
mbed_official	5:b3b3370574cf	4682	f \|= 8;
mbed_official	5:b3b3370574cf	4683	}
mbed_official	5:b3b3370574cf	4684	i = 0;
mbed_official	5:b3b3370574cf	4685	do {
mbed_official	5:b3b3370574cf	4686	d = (TCHAR)(v % r); v /= r;
mbed_official	5:b3b3370574cf	4687	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
mbed_official	5:b3b3370574cf	4688	s[i++] = d + '0';
mbed_official	5:b3b3370574cf	4689	} while (v && i < sizeof s / sizeof s[0]);
mbed_official	5:b3b3370574cf	4690	if (f & 8) s[i++] = '-';
mbed_official	5:b3b3370574cf	4691	j = i; d = (f & 1) ? '0' : ' ';
mbed_official	5:b3b3370574cf	4692	while (!(f & 2) && j++ < w) putc_bfd(&pb, d);
mbed_official	5:b3b3370574cf	4693	do putc_bfd(&pb, s[--i]); while (i);
mbed_official	5:b3b3370574cf	4694	while (j++ < w) putc_bfd(&pb, d);
mbed_official	5:b3b3370574cf	4695	}
mbed_official	5:b3b3370574cf	4696
mbed_official	5:b3b3370574cf	4697	va_end(arp);
mbed_official	5:b3b3370574cf	4698
mbed_official	5:b3b3370574cf	4699	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mbed_official	5:b3b3370574cf	4700	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mbed_official	5:b3b3370574cf	4701	&& (UINT)pb.idx == nw) return pb.nchr;
mbed_official	5:b3b3370574cf	4702	return EOF;
emilmont	1:46ce1e16c870	4703	}
emilmont	1:46ce1e16c870	4704
emilmont	1:46ce1e16c870	4705	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	4706	#endif /* _USE_STRFUNC */

Repository toolbox

Export to desktop IDE

Repository details

Type:	Library
Created:	17 Feb 2017
Imports:	1
Forks:	0
Commits:	11
Dependents:	0
Dependencies:	0
Followers:	1

ChaN/ff.cpp@8:0345cdc7efa5, 2017-02-17 (annotated)

Who changed what in which revision?

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning