FATFileSystem - Revised to support ability to have both SD and US…

Users » WiredHome » Code » FATFileSystem

Revised to support ability to have both SD and USB drives mounted.

Dependents: Multi-FileSystem Multi-FileSystem

Fork of FATFileSystem by mbed official

ChaN/ff.cpp@12:d816f503fc6f, 2017-07-29 (annotated)

Committer:: WiredHome
Date:: Sat Jul 29 12:39:03 2017 +0000
Revision:: 12:d816f503fc6f
Parent:: 8:f08059355141

Reduce the number of sectors definition

Who changed what in which revision?

User	Revision	Line number	New contents of line
emilmont	1:46ce1e16c870	1	/*----------------------------------------------------------------------------/
mbed_official	6:a5fcdbf92056	2	/ FatFs - FAT file system module R0.11a (C)ChaN, 2015 /
emilmont	1:46ce1e16c870	3	/-----------------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4	/ FatFs module is a free software that opened under license policy of
mbed_official	5:b3b3370574cf	5	/ following conditions.
emilmont	1:46ce1e16c870	6	/
mbed_official	5:b3b3370574cf	7	/ Copyright (C) 2015, ChaN, all right reserved.
emilmont	1:46ce1e16c870	8	/
mbed_official	5:b3b3370574cf	9	/ 1. Redistributions of source code must retain the above copyright notice,
mbed_official	5:b3b3370574cf	10	/ this condition and the following disclaimer.
emilmont	1:46ce1e16c870	11	/
mbed_official	5:b3b3370574cf	12	/ This software is provided by the copyright holder and contributors "AS IS"
mbed_official	5:b3b3370574cf	13	/ and any warranties related to this software are DISCLAIMED.
mbed_official	5:b3b3370574cf	14	/ The copyright owner or contributors be NOT LIABLE for any damages caused
mbed_official	5:b3b3370574cf	15	/ by use of this software.
mbed_official	5:b3b3370574cf	16	/----------------------------------------------------------------------------*/
mbed_official	5:b3b3370574cf	17
mbed_official	5:b3b3370574cf	18
mbed_official	5:b3b3370574cf	19	#include "ff.h" /* Declarations of FatFs API */
mbed_official	5:b3b3370574cf	20	#include "diskio.h" /* Declarations of disk I/O functions */
emilmont	1:46ce1e16c870	21
WiredHome	8:f08059355141	22	//#define DEBUG "FF__"
WiredHome	8:f08059355141	23	// ...
WiredHome	8:f08059355141	24	// INFO("Stuff to show %d", var); // new-line is automatically appended
WiredHome	8:f08059355141	25	//
WiredHome	8:f08059355141	26	#if (defined(DEBUG) && !defined(TARGET_LPC11U24))
WiredHome	8:f08059355141	27	#include "mbed.h"
WiredHome	8:f08059355141	28	#define INFO(x, ...) std::printf("[INF %s %4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome	8:f08059355141	29	#define WARN(x, ...) std::printf("[WRN %s %4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome	8:f08059355141	30	#define ERR(x, ...) std::printf("[ERR %s %4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome	8:f08059355141	31	static void HexDump(const char * title, const uint8_t * p, int count)
WiredHome	8:f08059355141	32	{
WiredHome	8:f08059355141	33	int i;
WiredHome	8:f08059355141	34	char buf[100] = "0000: ";
WiredHome	8:f08059355141	35
WiredHome	8:f08059355141	36	if (*title)
WiredHome	8:f08059355141	37	INFO("%s", title);
WiredHome	8:f08059355141	38	for (i=0; i<count; ) {
WiredHome	8:f08059355141	39	sprintf(buf + strlen(buf), "%02X ", *(p+i));
WiredHome	8:f08059355141	40	if ((++i & 0x0F) == 0x00) {
WiredHome	8:f08059355141	41	INFO("%s", buf);
WiredHome	8:f08059355141	42	if (i < count)
WiredHome	8:f08059355141	43	sprintf(buf, "%04X: ", i);
WiredHome	8:f08059355141	44	else
WiredHome	8:f08059355141	45	buf[0] = '\0';
WiredHome	8:f08059355141	46	}
WiredHome	8:f08059355141	47	}
WiredHome	8:f08059355141	48	if (strlen(buf))
WiredHome	8:f08059355141	49	INFO("%s", buf);
WiredHome	8:f08059355141	50	}
WiredHome	8:f08059355141	51	#else
WiredHome	8:f08059355141	52	#define INFO(x, ...)
WiredHome	8:f08059355141	53	#define WARN(x, ...)
WiredHome	8:f08059355141	54	#define ERR(x, ...)
WiredHome	8:f08059355141	55	#define HexDump(a, b, c)
WiredHome	8:f08059355141	56	#endif
emilmont	1:46ce1e16c870	57
emilmont	1:46ce1e16c870	58	/*--------------------------------------------------------------------------
emilmont	1:46ce1e16c870	59
emilmont	1:46ce1e16c870	60	Module Private Definitions
emilmont	1:46ce1e16c870	61
emilmont	1:46ce1e16c870	62	---------------------------------------------------------------------------*/
emilmont	1:46ce1e16c870	63
mbed_official	6:a5fcdbf92056	64	#if _FATFS != 64180 /* Revision ID */
emilmont	1:46ce1e16c870	65	#error Wrong include file (ff.h).
emilmont	1:46ce1e16c870	66	#endif
emilmont	1:46ce1e16c870	67
emilmont	1:46ce1e16c870	68
emilmont	1:46ce1e16c870	69	/* Reentrancy related */
emilmont	1:46ce1e16c870	70	#if _FS_REENTRANT
emilmont	1:46ce1e16c870	71	#if _USE_LFN == 1
mbed_official	5:b3b3370574cf	72	#error Static LFN work area cannot be used at thread-safe configuration
emilmont	1:46ce1e16c870	73	#endif
mbed_official	5:b3b3370574cf	74	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
mbed_official	5:b3b3370574cf	75	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
emilmont	1:46ce1e16c870	76	#else
mbed_official	5:b3b3370574cf	77	#define ENTER_FF(fs)
mbed_official	5:b3b3370574cf	78	#define LEAVE_FF(fs, res) return res
mbed_official	5:b3b3370574cf	79	#endif
mbed_official	5:b3b3370574cf	80
mbed_official	5:b3b3370574cf	81	#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }
mbed_official	5:b3b3370574cf	82
mbed_official	5:b3b3370574cf	83
mbed_official	5:b3b3370574cf	84	/* Definitions of sector size */
mbed_official	5:b3b3370574cf	85	#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	86	#error Wrong sector size configuration
emilmont	1:46ce1e16c870	87	#endif
mbed_official	5:b3b3370574cf	88	#if _MAX_SS == _MIN_SS
mbed_official	5:b3b3370574cf	89	#define SS(fs) ((UINT)_MAX_SS) /* Fixed sector size */
mbed_official	5:b3b3370574cf	90	#else
mbed_official	5:b3b3370574cf	91	#define SS(fs) ((fs)->ssize) /* Variable sector size */
mbed_official	5:b3b3370574cf	92	#endif
mbed_official	5:b3b3370574cf	93
mbed_official	5:b3b3370574cf	94
mbed_official	5:b3b3370574cf	95	/* Timestamp feature */
mbed_official	5:b3b3370574cf	96	#if _FS_NORTC == 1
mbed_official	5:b3b3370574cf	97	#if _NORTC_YEAR < 1980 \|\| _NORTC_YEAR > 2107 \|\| _NORTC_MON < 1 \|\| _NORTC_MON > 12 \|\| _NORTC_MDAY < 1 \|\| _NORTC_MDAY > 31
mbed_official	5:b3b3370574cf	98	#error Invalid _FS_NORTC settings
mbed_official	5:b3b3370574cf	99	#endif
mbed_official	5:b3b3370574cf	100	#define GET_FATTIME() ((DWORD)(_NORTC_YEAR - 1980) << 25 \| (DWORD)_NORTC_MON << 21 \| (DWORD)_NORTC_MDAY << 16)
mbed_official	5:b3b3370574cf	101	#else
mbed_official	5:b3b3370574cf	102	#define GET_FATTIME() get_fattime()
mbed_official	5:b3b3370574cf	103	#endif
emilmont	1:46ce1e16c870	104
emilmont	1:46ce1e16c870	105
emilmont	1:46ce1e16c870	106	/* File access control feature */
emilmont	1:46ce1e16c870	107	#if _FS_LOCK
emilmont	1:46ce1e16c870	108	#if _FS_READONLY
mbed_official	5:b3b3370574cf	109	#error _FS_LOCK must be 0 at read-only configuration
emilmont	1:46ce1e16c870	110	#endif
emilmont	1:46ce1e16c870	111	typedef struct {
mbed_official	5:b3b3370574cf	112	FATFS fs; / Object ID 1, volume (NULL:blank entry) */
mbed_official	5:b3b3370574cf	113	DWORD clu; /* Object ID 2, directory (0:root) */
mbed_official	5:b3b3370574cf	114	WORD idx; /* Object ID 3, directory index */
mbed_official	5:b3b3370574cf	115	WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */
emilmont	1:46ce1e16c870	116	} FILESEM;
emilmont	1:46ce1e16c870	117	#endif
emilmont	1:46ce1e16c870	118
emilmont	1:46ce1e16c870	119
emilmont	1:46ce1e16c870	120
mbed_official	6:a5fcdbf92056	121	/* DBCS code ranges and SBCS upper conversion tables */
mbed_official	5:b3b3370574cf	122
mbed_official	5:b3b3370574cf	123	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
mbed_official	5:b3b3370574cf	124	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
mbed_official	5:b3b3370574cf	125	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
mbed_official	5:b3b3370574cf	126	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
mbed_official	5:b3b3370574cf	127	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
mbed_official	5:b3b3370574cf	128	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
mbed_official	5:b3b3370574cf	129	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
mbed_official	5:b3b3370574cf	130	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
mbed_official	5:b3b3370574cf	131	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
mbed_official	5:b3b3370574cf	132
mbed_official	5:b3b3370574cf	133	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
mbed_official	5:b3b3370574cf	134	#define _DF1S 0x81
mbed_official	5:b3b3370574cf	135	#define _DF1E 0xFE
mbed_official	5:b3b3370574cf	136	#define _DS1S 0x40
mbed_official	5:b3b3370574cf	137	#define _DS1E 0x7E
mbed_official	5:b3b3370574cf	138	#define _DS2S 0x80
mbed_official	5:b3b3370574cf	139	#define _DS2E 0xFE
mbed_official	5:b3b3370574cf	140
mbed_official	5:b3b3370574cf	141	#elif _CODE_PAGE == 949 /* Korean */
mbed_official	5:b3b3370574cf	142	#define _DF1S 0x81
mbed_official	5:b3b3370574cf	143	#define _DF1E 0xFE
mbed_official	5:b3b3370574cf	144	#define _DS1S 0x41
mbed_official	5:b3b3370574cf	145	#define _DS1E 0x5A
mbed_official	5:b3b3370574cf	146	#define _DS2S 0x61
mbed_official	5:b3b3370574cf	147	#define _DS2E 0x7A
mbed_official	5:b3b3370574cf	148	#define _DS3S 0x81
mbed_official	5:b3b3370574cf	149	#define _DS3E 0xFE
mbed_official	5:b3b3370574cf	150
mbed_official	5:b3b3370574cf	151	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
mbed_official	5:b3b3370574cf	152	#define _DF1S 0x81
mbed_official	5:b3b3370574cf	153	#define _DF1E 0xFE
mbed_official	5:b3b3370574cf	154	#define _DS1S 0x40
mbed_official	5:b3b3370574cf	155	#define _DS1E 0x7E
mbed_official	5:b3b3370574cf	156	#define _DS2S 0xA1
mbed_official	5:b3b3370574cf	157	#define _DS2E 0xFE
mbed_official	5:b3b3370574cf	158
mbed_official	6:a5fcdbf92056	159	#elif _CODE_PAGE == 437 /* U.S. */
mbed_official	5:b3b3370574cf	160	#define _DF1S 0
mbed_official	6:a5fcdbf92056	161	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	162	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	163	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	164	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	165	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	166	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	167	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	168	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	169
mbed_official	6:a5fcdbf92056	170	#elif _CODE_PAGE == 720 /* Arabic */
mbed_official	5:b3b3370574cf	171	#define _DF1S 0
mbed_official	6:a5fcdbf92056	172	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	173	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	174	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	175	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	176	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	177	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	178	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	179	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	180
mbed_official	6:a5fcdbf92056	181	#elif _CODE_PAGE == 737 /* Greek */
mbed_official	5:b3b3370574cf	182	#define _DF1S 0
mbed_official	6:a5fcdbf92056	183	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	184	0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
mbed_official	6:a5fcdbf92056	185	0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96, \
mbed_official	6:a5fcdbf92056	186	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	187	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	188	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	189	0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xEF,0xF5,0xF0,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	190	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	191
mbed_official	6:a5fcdbf92056	192	#elif _CODE_PAGE == 771 /* KBL */
mbed_official	5:b3b3370574cf	193	#define _DF1S 0
mbed_official	6:a5fcdbf92056	194	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	195	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	196	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	197	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	198	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	199	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDC,0xDE,0xDE, \
mbed_official	6:a5fcdbf92056	200	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	201	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	202
mbed_official	6:a5fcdbf92056	203	#elif _CODE_PAGE == 775 /* Baltic */
mbed_official	5:b3b3370574cf	204	#define _DF1S 0
mbed_official	6:a5fcdbf92056	205	#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	206	0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	207	0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	208	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	209	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	210	0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	211	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	212	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	213
mbed_official	6:a5fcdbf92056	214	#elif _CODE_PAGE == 850 /* Latin 1 */
mbed_official	5:b3b3370574cf	215	#define _DF1S 0
mbed_official	6:a5fcdbf92056	216	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x41,0x43,0x45,0x45,0x45,0x49,0x49,0x49,0x41,0x41, \
mbed_official	6:a5fcdbf92056	217	0x45,0x92,0x92,0x4F,0x4F,0x4F,0x55,0x55,0x59,0x4F,0x55,0x4F,0x9C,0x4F,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	218	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	219	0xB0,0xB1,0xB2,0xB3,0xB4,0x41,0x41,0x41,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	220	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0x41,0x41,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	221	0xD1,0xD1,0x45,0x45,0x45,0x49,0x49,0x49,0x49,0xD9,0xDA,0xDB,0xDC,0xDD,0x49,0xDF, \
mbed_official	6:a5fcdbf92056	222	0x4F,0xE1,0x4F,0x4F,0x4F,0x4F,0xE6,0xE8,0xE8,0x55,0x55,0x55,0x59,0x59,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	223	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	224
mbed_official	6:a5fcdbf92056	225	#elif _CODE_PAGE == 852 /* Latin 2 */
mbed_official	5:b3b3370574cf	226	#define _DF1S 0
mbed_official	6:a5fcdbf92056	227	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	228	0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0xAC, \
mbed_official	6:a5fcdbf92056	229	0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	230	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
mbed_official	6:a5fcdbf92056	231	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	232	0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	233	0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF, \
mbed_official	6:a5fcdbf92056	234	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	235
mbed_official	6:a5fcdbf92056	236	#elif _CODE_PAGE == 855 /* Cyrillic */
mbed_official	5:b3b3370574cf	237	#define _DF1S 0
mbed_official	6:a5fcdbf92056	238	#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F, \
mbed_official	6:a5fcdbf92056	239	0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
mbed_official	6:a5fcdbf92056	240	0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	241	0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	242	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	243	0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
mbed_official	6:a5fcdbf92056	244	0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	245	0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	246
mbed_official	6:a5fcdbf92056	247	#elif _CODE_PAGE == 857 /* Turkish */
mbed_official	5:b3b3370574cf	248	#define _DF1S 0
mbed_official	6:a5fcdbf92056	249	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x49,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	250	0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
mbed_official	6:a5fcdbf92056	251	0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	252	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	253	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	254	0xD0,0xD1,0xD2,0xD3,0xD4,0x49,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	255	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	256	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	257
mbed_official	6:a5fcdbf92056	258	#elif _CODE_PAGE == 860 /* Portuguese */
mbed_official	5:b3b3370574cf	259	#define _DF1S 0
mbed_official	6:a5fcdbf92056	260	#define _EXCVT {0x80,0x9A,0x90,0x8F,0x8E,0x91,0x86,0x80,0x89,0x89,0x92,0x8B,0x8C,0x98,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	261	0x90,0x91,0x92,0x8C,0x99,0xA9,0x96,0x9D,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	262	0x86,0x8B,0x9F,0x96,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	263	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	264	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	265	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	266	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	267	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	268
mbed_official	6:a5fcdbf92056	269	#elif _CODE_PAGE == 861 /* Icelandic */
mbed_official	5:b3b3370574cf	270	#define _DF1S 0
mbed_official	6:a5fcdbf92056	271	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x8B,0x8B,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	272	0x90,0x92,0x92,0x4F,0x99,0x8D,0x55,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	273	0xA4,0xA5,0xA6,0xA7,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	274	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	275	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	276	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	277	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	278	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	279
mbed_official	6:a5fcdbf92056	280	#elif _CODE_PAGE == 862 /* Hebrew */
mbed_official	5:b3b3370574cf	281	#define _DF1S 0
mbed_official	6:a5fcdbf92056	282	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	283	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	284	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	285	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	286	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	287	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	288	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	289	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	290
mbed_official	6:a5fcdbf92056	291	#elif _CODE_PAGE == 863 /* Canadian-French */
mbed_official	5:b3b3370574cf	292	#define _DF1S 0
mbed_official	6:a5fcdbf92056	293	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x41,0x8F, \
mbed_official	6:a5fcdbf92056	294	0x45,0x45,0x45,0x4F,0x45,0x49,0x55,0x55,0x98,0x4F,0x55,0x9B,0x9C,0x55,0x55,0x9F, \
mbed_official	6:a5fcdbf92056	295	0xA0,0xA1,0x4F,0x55,0xA4,0xA5,0xA6,0xA7,0x49,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	296	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	297	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	298	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	299	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	300	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	301
mbed_official	6:a5fcdbf92056	302	#elif _CODE_PAGE == 864 /* Arabic */
mbed_official	5:b3b3370574cf	303	#define _DF1S 0
mbed_official	6:a5fcdbf92056	304	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	305	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	306	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	307	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	308	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	309	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	310	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	311	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	312
mbed_official	6:a5fcdbf92056	313	#elif _CODE_PAGE == 865 /* Nordic */
mbed_official	5:b3b3370574cf	314	#define _DF1S 0
mbed_official	6:a5fcdbf92056	315	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	316	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	317	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	318	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	319	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	320	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	321	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mbed_official	6:a5fcdbf92056	322	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	323
mbed_official	6:a5fcdbf92056	324	#elif _CODE_PAGE == 866 /* Russian */
mbed_official	5:b3b3370574cf	325	#define _DF1S 0
mbed_official	6:a5fcdbf92056	326	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	327	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	328	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	329	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	330	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	331	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	6:a5fcdbf92056	332	0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	6:a5fcdbf92056	333	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	6:a5fcdbf92056	334
mbed_official	6:a5fcdbf92056	335	#elif _CODE_PAGE == 869 /* Greek 2 */
mbed_official	5:b3b3370574cf	336	#define _DF1S 0
mbed_official	6:a5fcdbf92056	337	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	6:a5fcdbf92056	338	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x86,0x9C,0x8D,0x8F,0x90, \
mbed_official	6:a5fcdbf92056	339	0x91,0x90,0x92,0x95,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mbed_official	6:a5fcdbf92056	340	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	6:a5fcdbf92056	341	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mbed_official	6:a5fcdbf92056	342	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xA4,0xA5,0xA6,0xD9,0xDA,0xDB,0xDC,0xA7,0xA8,0xDF, \
mbed_official	6:a5fcdbf92056	343	0xA9,0xAA,0xAC,0xAD,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xCF,0xCF,0xD0,0xEF, \
mbed_official	6:a5fcdbf92056	344	0xF0,0xF1,0xD1,0xD2,0xD3,0xF5,0xD4,0xF7,0xF8,0xF9,0xD5,0x96,0x95,0x98,0xFE,0xFF}
mbed_official	5:b3b3370574cf	345
mbed_official	5:b3b3370574cf	346	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
emilmont	1:46ce1e16c870	347	#if _USE_LFN
emilmont	1:46ce1e16c870	348	#error Cannot use LFN feature without valid code page.
emilmont	1:46ce1e16c870	349	#endif
mbed_official	5:b3b3370574cf	350	#define _DF1S 0
emilmont	1:46ce1e16c870	351
emilmont	1:46ce1e16c870	352	#else
emilmont	1:46ce1e16c870	353	#error Unknown code page
emilmont	1:46ce1e16c870	354
emilmont	1:46ce1e16c870	355	#endif
emilmont	1:46ce1e16c870	356
emilmont	1:46ce1e16c870	357
emilmont	1:46ce1e16c870	358	/* Character code support macros */
mbed_official	5:b3b3370574cf	359	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
mbed_official	5:b3b3370574cf	360	#define IsLower(c) (((c)>='a')&&((c)<='z'))
mbed_official	5:b3b3370574cf	361	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
mbed_official	5:b3b3370574cf	362
mbed_official	5:b3b3370574cf	363	#if _DF1S /* Code page is DBCS */
mbed_official	5:b3b3370574cf	364
mbed_official	5:b3b3370574cf	365	#ifdef _DF2S /* Two 1st byte areas */
mbed_official	5:b3b3370574cf	366	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
mbed_official	5:b3b3370574cf	367	#else /* One 1st byte area */
mbed_official	5:b3b3370574cf	368	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
emilmont	1:46ce1e16c870	369	#endif
emilmont	1:46ce1e16c870	370
mbed_official	5:b3b3370574cf	371	#ifdef _DS3S /* Three 2nd byte areas */
mbed_official	5:b3b3370574cf	372	#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	373	#else /* Two 2nd byte areas */
mbed_official	5:b3b3370574cf	374	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
emilmont	1:46ce1e16c870	375	#endif
emilmont	1:46ce1e16c870	376
mbed_official	5:b3b3370574cf	377	#else /* Code page is SBCS */
mbed_official	5:b3b3370574cf	378
mbed_official	5:b3b3370574cf	379	#define IsDBCS1(c) 0
mbed_official	5:b3b3370574cf	380	#define IsDBCS2(c) 0
emilmont	1:46ce1e16c870	381
emilmont	1:46ce1e16c870	382	#endif /* _DF1S */
emilmont	1:46ce1e16c870	383
emilmont	1:46ce1e16c870	384
emilmont	1:46ce1e16c870	385	/* Name status flags */
mbed_official	5:b3b3370574cf	386	#define NSFLAG 11 /* Index of name status byte in fn[] */
mbed_official	5:b3b3370574cf	387	#define NS_LOSS 0x01 /* Out of 8.3 format */
mbed_official	5:b3b3370574cf	388	#define NS_LFN 0x02 /* Force to create LFN entry */
mbed_official	5:b3b3370574cf	389	#define NS_LAST 0x04 /* Last segment */
mbed_official	5:b3b3370574cf	390	#define NS_BODY 0x08 /* Lower case flag (body) */
mbed_official	5:b3b3370574cf	391	#define NS_EXT 0x10 /* Lower case flag (ext) */
mbed_official	5:b3b3370574cf	392	#define NS_DOT 0x20 /* Dot entry */
mbed_official	5:b3b3370574cf	393
mbed_official	5:b3b3370574cf	394
mbed_official	5:b3b3370574cf	395	/* FAT sub-type boundaries (Differ from specs but correct for real DOS/Windows) */
mbed_official	6:a5fcdbf92056	396	#define MIN_FAT16 4086U /* Minimum number of clusters of FAT16 */
mbed_official	6:a5fcdbf92056	397	#define MIN_FAT32 65526U /* Minimum number of clusters of FAT32 */
emilmont	1:46ce1e16c870	398
emilmont	1:46ce1e16c870	399
emilmont	1:46ce1e16c870	400	/* FatFs refers the members in the FAT structures as byte array instead of
mbed_official	6:a5fcdbf92056	401	/ structure members because the structure is not binary compatible between
emilmont	1:46ce1e16c870	402	/ different platforms */
emilmont	1:46ce1e16c870	403
mbed_official	5:b3b3370574cf	404	#define BS_jmpBoot 0 /* x86 jump instruction (3) */
mbed_official	5:b3b3370574cf	405	#define BS_OEMName 3 /* OEM name (8) */
mbed_official	5:b3b3370574cf	406	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
mbed_official	5:b3b3370574cf	407	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
mbed_official	5:b3b3370574cf	408	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
mbed_official	5:b3b3370574cf	409	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
mbed_official	5:b3b3370574cf	410	#define BPB_RootEntCnt 17 /* Number of root directory entries for FAT12/16 (2) */
mbed_official	5:b3b3370574cf	411	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
mbed_official	5:b3b3370574cf	412	#define BPB_Media 21 /* Media descriptor (1) */
mbed_official	5:b3b3370574cf	413	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
mbed_official	5:b3b3370574cf	414	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
mbed_official	5:b3b3370574cf	415	#define BPB_NumHeads 26 /* Number of heads (2) */
mbed_official	5:b3b3370574cf	416	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
mbed_official	5:b3b3370574cf	417	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
mbed_official	6:a5fcdbf92056	418	#define BS_DrvNum 36 /* Physical drive number (1) */
mbed_official	6:a5fcdbf92056	419	#define BS_NTres 37 /* Error flag (1) */
mbed_official	5:b3b3370574cf	420	#define BS_BootSig 38 /* Extended boot signature (1) */
mbed_official	5:b3b3370574cf	421	#define BS_VolID 39 /* Volume serial number (4) */
mbed_official	5:b3b3370574cf	422	#define BS_VolLab 43 /* Volume label (8) */
mbed_official	5:b3b3370574cf	423	#define BS_FilSysType 54 /* File system type (1) */
mbed_official	5:b3b3370574cf	424	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
mbed_official	5:b3b3370574cf	425	#define BPB_ExtFlags 40 /* Extended flags (2) */
mbed_official	5:b3b3370574cf	426	#define BPB_FSVer 42 /* File system version (2) */
mbed_official	5:b3b3370574cf	427	#define BPB_RootClus 44 /* Root directory first cluster (4) */
mbed_official	5:b3b3370574cf	428	#define BPB_FSInfo 48 /* Offset of FSINFO sector (2) */
mbed_official	5:b3b3370574cf	429	#define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
mbed_official	6:a5fcdbf92056	430	#define BS_DrvNum32 64 /* Physical drive number (1) */
mbed_official	6:a5fcdbf92056	431	#define BS_NTres32 65 /* Error flag (1) */
mbed_official	5:b3b3370574cf	432	#define BS_BootSig32 66 /* Extended boot signature (1) */
mbed_official	5:b3b3370574cf	433	#define BS_VolID32 67 /* Volume serial number (4) */
mbed_official	5:b3b3370574cf	434	#define BS_VolLab32 71 /* Volume label (8) */
mbed_official	5:b3b3370574cf	435	#define BS_FilSysType32 82 /* File system type (1) */
mbed_official	5:b3b3370574cf	436	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
mbed_official	5:b3b3370574cf	437	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
mbed_official	5:b3b3370574cf	438	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
mbed_official	5:b3b3370574cf	439	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
mbed_official	5:b3b3370574cf	440	#define MBR_Table 446 /* MBR: Partition table offset (2) */
mbed_official	5:b3b3370574cf	441	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
mbed_official	5:b3b3370574cf	442	#define BS_55AA 510 /* Signature word (2) */
mbed_official	5:b3b3370574cf	443
mbed_official	5:b3b3370574cf	444	#define DIR_Name 0 /* Short file name (11) */
mbed_official	5:b3b3370574cf	445	#define DIR_Attr 11 /* Attribute (1) */
mbed_official	5:b3b3370574cf	446	#define DIR_NTres 12 /* Lower case flag (1) */
mbed_official	5:b3b3370574cf	447	#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
mbed_official	5:b3b3370574cf	448	#define DIR_CrtTime 14 /* Created time (2) */
mbed_official	5:b3b3370574cf	449	#define DIR_CrtDate 16 /* Created date (2) */
mbed_official	5:b3b3370574cf	450	#define DIR_LstAccDate 18 /* Last accessed date (2) */
mbed_official	5:b3b3370574cf	451	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
mbed_official	5:b3b3370574cf	452	#define DIR_WrtTime 22 /* Modified time (2) */
mbed_official	5:b3b3370574cf	453	#define DIR_WrtDate 24 /* Modified date (2) */
mbed_official	5:b3b3370574cf	454	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
mbed_official	5:b3b3370574cf	455	#define DIR_FileSize 28 /* File size (4) */
mbed_official	5:b3b3370574cf	456	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
mbed_official	5:b3b3370574cf	457	#define LDIR_Attr 11 /* LFN attribute (1) */
mbed_official	5:b3b3370574cf	458	#define LDIR_Type 12 /* LFN type (1) */
mbed_official	6:a5fcdbf92056	459	#define LDIR_Chksum 13 /* Checksum of corresponding SFN entry */
mbed_official	5:b3b3370574cf	460	#define LDIR_FstClusLO 26 /* Must be zero (0) */
mbed_official	5:b3b3370574cf	461	#define SZ_DIRE 32 /* Size of a directory entry */
mbed_official	5:b3b3370574cf	462	#define LLEF 0x40 /* Last long entry flag in LDIR_Ord */
mbed_official	5:b3b3370574cf	463	#define DDEM 0xE5 /* Deleted directory entry mark at DIR_Name[0] */
mbed_official	5:b3b3370574cf	464	#define RDDEM 0x05 /* Replacement of the character collides with DDEM */
mbed_official	5:b3b3370574cf	465
mbed_official	5:b3b3370574cf	466
emilmont	1:46ce1e16c870	467
emilmont	1:46ce1e16c870	468
mbed_official	6:a5fcdbf92056	469	/*--------------------------------------------------------------------------
mbed_official	6:a5fcdbf92056	470
mbed_official	6:a5fcdbf92056	471	Module Private Work Area
mbed_official	6:a5fcdbf92056	472
mbed_official	6:a5fcdbf92056	473	---------------------------------------------------------------------------*/
mbed_official	6:a5fcdbf92056	474
mbed_official	6:a5fcdbf92056	475	/* Remark: Uninitialized variables with static duration are guaranteed
mbed_official	6:a5fcdbf92056	476	/ zero/null at start-up. If not, either the linker or start-up routine
mbed_official	6:a5fcdbf92056	477	/ being used is not compliance with ANSI-C standard.
emilmont	1:46ce1e16c870	478	*/
emilmont	1:46ce1e16c870	479
mbed_official	5:b3b3370574cf	480	#if _VOLUMES < 1 \|\| _VOLUMES > 9
mbed_official	5:b3b3370574cf	481	#error Wrong _VOLUMES setting
emilmont	1:46ce1e16c870	482	#endif
mbed_official	5:b3b3370574cf	483	static FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
mbed_official	5:b3b3370574cf	484	static WORD Fsid; /* File system mount ID */
mbed_official	5:b3b3370574cf	485
mbed_official	5:b3b3370574cf	486	#if _FS_RPATH && _VOLUMES >= 2
mbed_official	5:b3b3370574cf	487	static BYTE CurrVol; /* Current drive */
emilmont	1:46ce1e16c870	488	#endif
emilmont	1:46ce1e16c870	489
emilmont	1:46ce1e16c870	490	#if _FS_LOCK
mbed_official	5:b3b3370574cf	491	static FILESEM Files[_FS_LOCK]; /* Open object lock semaphores */
mbed_official	5:b3b3370574cf	492	#endif
mbed_official	5:b3b3370574cf	493
mbed_official	5:b3b3370574cf	494	#if _USE_LFN == 0 /* Non LFN feature */
mbed_official	5:b3b3370574cf	495	#define DEFINE_NAMEBUF BYTE sfn[12]
mbed_official	5:b3b3370574cf	496	#define INIT_BUF(dobj) (dobj).fn = sfn
mbed_official	5:b3b3370574cf	497	#define FREE_BUF()
mbed_official	5:b3b3370574cf	498	#else
mbed_official	5:b3b3370574cf	499	#if _MAX_LFN < 12 \|\| _MAX_LFN > 255
mbed_official	5:b3b3370574cf	500	#error Wrong _MAX_LFN setting
emilmont	1:46ce1e16c870	501	#endif
mbed_official	5:b3b3370574cf	502	#if _USE_LFN == 1 /* LFN feature with static working buffer */
mbed_official	5:b3b3370574cf	503	static WCHAR LfnBuf[_MAX_LFN + 1];
mbed_official	5:b3b3370574cf	504	#define DEFINE_NAMEBUF BYTE sfn[12]
mbed_official	5:b3b3370574cf	505	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
mbed_official	5:b3b3370574cf	506	#define FREE_BUF()
mbed_official	5:b3b3370574cf	507	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
mbed_official	5:b3b3370574cf	508	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN + 1]
mbed_official	5:b3b3370574cf	509	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
mbed_official	5:b3b3370574cf	510	#define FREE_BUF()
mbed_official	5:b3b3370574cf	511	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
mbed_official	5:b3b3370574cf	512	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR *lfn
mbed_official	5:b3b3370574cf	513	#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	514	#define FREE_BUF() ff_memfree(lfn)
emilmont	1:46ce1e16c870	515	#else
mbed_official	5:b3b3370574cf	516	#error Wrong _USE_LFN setting
mbed_official	5:b3b3370574cf	517	#endif
emilmont	1:46ce1e16c870	518	#endif
emilmont	1:46ce1e16c870	519
mbed_official	5:b3b3370574cf	520	#ifdef _EXCVT
mbed_official	6:a5fcdbf92056	521	static const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for SBCS extended characters */
mbed_official	5:b3b3370574cf	522	#endif
mbed_official	5:b3b3370574cf	523
mbed_official	5:b3b3370574cf	524
mbed_official	5:b3b3370574cf	525
emilmont	1:46ce1e16c870	526
emilmont	1:46ce1e16c870	527
emilmont	1:46ce1e16c870	528
emilmont	1:46ce1e16c870	529	/*--------------------------------------------------------------------------
emilmont	1:46ce1e16c870	530
emilmont	1:46ce1e16c870	531	Module Private Functions
emilmont	1:46ce1e16c870	532
emilmont	1:46ce1e16c870	533	---------------------------------------------------------------------------*/
emilmont	1:46ce1e16c870	534
emilmont	1:46ce1e16c870	535
emilmont	1:46ce1e16c870	536	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	537	/* String functions */
emilmont	1:46ce1e16c870	538	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	539
emilmont	1:46ce1e16c870	540	/* Copy memory to memory */
emilmont	1:46ce1e16c870	541	static
mbed_official	4:3ff2606d5713	542	void mem_cpy (void* dst, const void* src, UINT cnt) {
mbed_official	5:b3b3370574cf	543	BYTE d = (BYTE)dst;
mbed_official	5:b3b3370574cf	544	const BYTE s = (const BYTE)src;
emilmont	1:46ce1e16c870	545
emilmont	1:46ce1e16c870	546	#if _WORD_ACCESS == 1
mbed_official	5:b3b3370574cf	547	while (cnt >= sizeof (int)) {
mbed_official	5:b3b3370574cf	548	(int)d = (int)s;
mbed_official	5:b3b3370574cf	549	d += sizeof (int); s += sizeof (int);
mbed_official	5:b3b3370574cf	550	cnt -= sizeof (int);
mbed_official	5:b3b3370574cf	551	}
emilmont	1:46ce1e16c870	552	#endif
mbed_official	5:b3b3370574cf	553	while (cnt--)
mbed_official	5:b3b3370574cf	554	d++ = s++;
emilmont	1:46ce1e16c870	555	}
emilmont	1:46ce1e16c870	556
emilmont	1:46ce1e16c870	557	/* Fill memory */
emilmont	1:46ce1e16c870	558	static
mbed_official	4:3ff2606d5713	559	void mem_set (void* dst, int val, UINT cnt) {
mbed_official	5:b3b3370574cf	560	BYTE d = (BYTE)dst;
mbed_official	5:b3b3370574cf	561
mbed_official	5:b3b3370574cf	562	while (cnt--)
mbed_official	5:b3b3370574cf	563	*d++ = (BYTE)val;
emilmont	1:46ce1e16c870	564	}
emilmont	1:46ce1e16c870	565
emilmont	1:46ce1e16c870	566	/* Compare memory to memory */
emilmont	1:46ce1e16c870	567	static
mbed_official	4:3ff2606d5713	568	int mem_cmp (const void* dst, const void* src, UINT cnt) {
mbed_official	5:b3b3370574cf	569	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
mbed_official	5:b3b3370574cf	570	int r = 0;
mbed_official	5:b3b3370574cf	571
mbed_official	5:b3b3370574cf	572	while (cnt-- && (r = d++ - s++) == 0) ;
mbed_official	5:b3b3370574cf	573	return r;
emilmont	1:46ce1e16c870	574	}
emilmont	1:46ce1e16c870	575
emilmont	1:46ce1e16c870	576	/* Check if chr is contained in the string */
emilmont	1:46ce1e16c870	577	static
mbed_official	4:3ff2606d5713	578	int chk_chr (const char* str, int chr) {
mbed_official	5:b3b3370574cf	579	while (str && str != chr) str++;
mbed_official	5:b3b3370574cf	580	return *str;
emilmont	1:46ce1e16c870	581	}
emilmont	1:46ce1e16c870	582
emilmont	1:46ce1e16c870	583
emilmont	1:46ce1e16c870	584
mbed_official	5:b3b3370574cf	585
emilmont	1:46ce1e16c870	586	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	587	/* Request/Release grant to access the volume */
emilmont	1:46ce1e16c870	588	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	589	#if _FS_REENTRANT
emilmont	1:46ce1e16c870	590	static
emilmont	1:46ce1e16c870	591	int lock_fs (
mbed_official	5:b3b3370574cf	592	FATFS* fs /* File system object */
emilmont	1:46ce1e16c870	593	)
emilmont	1:46ce1e16c870	594	{
mbed_official	5:b3b3370574cf	595	return ff_req_grant(fs->sobj);
emilmont	1:46ce1e16c870	596	}
emilmont	1:46ce1e16c870	597
emilmont	1:46ce1e16c870	598
emilmont	1:46ce1e16c870	599	static
emilmont	1:46ce1e16c870	600	void unlock_fs (
mbed_official	5:b3b3370574cf	601	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	602	FRESULT res /* Result code to be returned */
emilmont	1:46ce1e16c870	603	)
emilmont	1:46ce1e16c870	604	{
mbed_official	5:b3b3370574cf	605	if (fs &&
mbed_official	5:b3b3370574cf	606	res != FR_NOT_ENABLED &&
mbed_official	5:b3b3370574cf	607	res != FR_INVALID_DRIVE &&
mbed_official	5:b3b3370574cf	608	res != FR_INVALID_OBJECT &&
mbed_official	5:b3b3370574cf	609	res != FR_TIMEOUT) {
mbed_official	5:b3b3370574cf	610	ff_rel_grant(fs->sobj);
mbed_official	5:b3b3370574cf	611	}
emilmont	1:46ce1e16c870	612	}
emilmont	1:46ce1e16c870	613	#endif
emilmont	1:46ce1e16c870	614
emilmont	1:46ce1e16c870	615
emilmont	1:46ce1e16c870	616
mbed_official	5:b3b3370574cf	617
emilmont	1:46ce1e16c870	618	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	619	/* File lock control functions */
emilmont	1:46ce1e16c870	620	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	621	#if _FS_LOCK
emilmont	1:46ce1e16c870	622
emilmont	1:46ce1e16c870	623	static
mbed_official	5:b3b3370574cf	624	FRESULT chk_lock ( /* Check if the file can be accessed */
mbed_official	5:b3b3370574cf	625	FATFS_DIR* dp, /* Directory object pointing the file to be checked */
mbed_official	5:b3b3370574cf	626	int acc /* Desired access type (0:Read, 1:Write, 2:Delete/Rename) */
emilmont	1:46ce1e16c870	627	)
emilmont	1:46ce1e16c870	628	{
mbed_official	5:b3b3370574cf	629	UINT i, be;
mbed_official	5:b3b3370574cf	630
mbed_official	5:b3b3370574cf	631	/* Search file semaphore table */
mbed_official	5:b3b3370574cf	632	for (i = be = 0; i < _FS_LOCK; i++) {
mbed_official	5:b3b3370574cf	633	if (Files[i].fs) { /* Existing entry */
mbed_official	5:b3b3370574cf	634	if (Files[i].fs == dp->fs && /* Check if the object matched with an open object */
mbed_official	5:b3b3370574cf	635	Files[i].clu == dp->sclust &&
mbed_official	5:b3b3370574cf	636	Files[i].idx == dp->index) break;
mbed_official	5:b3b3370574cf	637	} else { /* Blank entry */
mbed_official	5:b3b3370574cf	638	be = 1;
mbed_official	5:b3b3370574cf	639	}
mbed_official	5:b3b3370574cf	640	}
mbed_official	5:b3b3370574cf	641	if (i == _FS_LOCK) /* The object is not opened */
mbed_official	5:b3b3370574cf	642	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new object? */
mbed_official	5:b3b3370574cf	643
mbed_official	5:b3b3370574cf	644	/* The object has been opened. Reject any open against writing file and all write mode open */
mbed_official	5:b3b3370574cf	645	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
emilmont	1:46ce1e16c870	646	}
emilmont	1:46ce1e16c870	647
emilmont	1:46ce1e16c870	648
emilmont	1:46ce1e16c870	649	static
mbed_official	5:b3b3370574cf	650	int enq_lock (void) /* Check if an entry is available for a new object */
emilmont	1:46ce1e16c870	651	{
mbed_official	5:b3b3370574cf	652	UINT i;
mbed_official	5:b3b3370574cf	653
mbed_official	5:b3b3370574cf	654	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mbed_official	5:b3b3370574cf	655	return (i == _FS_LOCK) ? 0 : 1;
emilmont	1:46ce1e16c870	656	}
emilmont	1:46ce1e16c870	657
emilmont	1:46ce1e16c870	658
emilmont	1:46ce1e16c870	659	static
mbed_official	5:b3b3370574cf	660	UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */
mbed_official	5:b3b3370574cf	661	FATFS_DIR* dp, /* Directory object pointing the file to register or increment */
mbed_official	5:b3b3370574cf	662	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
emilmont	1:46ce1e16c870	663	)
emilmont	1:46ce1e16c870	664	{
mbed_official	5:b3b3370574cf	665	UINT i;
mbed_official	5:b3b3370574cf	666
mbed_official	5:b3b3370574cf	667
mbed_official	5:b3b3370574cf	668	for (i = 0; i < _FS_LOCK; i++) { /* Find the object */
mbed_official	5:b3b3370574cf	669	if (Files[i].fs == dp->fs &&
mbed_official	5:b3b3370574cf	670	Files[i].clu == dp->sclust &&
mbed_official	5:b3b3370574cf	671	Files[i].idx == dp->index) break;
mbed_official	5:b3b3370574cf	672	}
mbed_official	5:b3b3370574cf	673
mbed_official	5:b3b3370574cf	674	if (i == _FS_LOCK) { /* Not opened. Register it as new. */
mbed_official	5:b3b3370574cf	675	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mbed_official	5:b3b3370574cf	676	if (i == _FS_LOCK) return 0; /* No free entry to register (int err) */
mbed_official	5:b3b3370574cf	677	Files[i].fs = dp->fs;
mbed_official	5:b3b3370574cf	678	Files[i].clu = dp->sclust;
mbed_official	5:b3b3370574cf	679	Files[i].idx = dp->index;
mbed_official	5:b3b3370574cf	680	Files[i].ctr = 0;
mbed_official	5:b3b3370574cf	681	}
mbed_official	5:b3b3370574cf	682
mbed_official	5:b3b3370574cf	683	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
mbed_official	5:b3b3370574cf	684
mbed_official	5:b3b3370574cf	685	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
mbed_official	5:b3b3370574cf	686
mbed_official	5:b3b3370574cf	687	return i + 1;
emilmont	1:46ce1e16c870	688	}
emilmont	1:46ce1e16c870	689
emilmont	1:46ce1e16c870	690
emilmont	1:46ce1e16c870	691	static
mbed_official	5:b3b3370574cf	692	FRESULT dec_lock ( /* Decrement object open counter */
mbed_official	5:b3b3370574cf	693	UINT i /* Semaphore index (1..) */
emilmont	1:46ce1e16c870	694	)
emilmont	1:46ce1e16c870	695	{
mbed_official	5:b3b3370574cf	696	WORD n;
mbed_official	5:b3b3370574cf	697	FRESULT res;
mbed_official	5:b3b3370574cf	698
mbed_official	5:b3b3370574cf	699
mbed_official	5:b3b3370574cf	700	if (--i < _FS_LOCK) { /* Shift index number origin from 0 */
mbed_official	5:b3b3370574cf	701	n = Files[i].ctr;
mbed_official	5:b3b3370574cf	702	if (n == 0x100) n = 0; /* If write mode open, delete the entry */
mbed_official	5:b3b3370574cf	703	if (n) n--; /* Decrement read mode open count */
mbed_official	5:b3b3370574cf	704	Files[i].ctr = n;
mbed_official	5:b3b3370574cf	705	if (!n) Files[i].fs = 0; /* Delete the entry if open count gets zero */
mbed_official	5:b3b3370574cf	706	res = FR_OK;
mbed_official	5:b3b3370574cf	707	} else {
mbed_official	5:b3b3370574cf	708	res = FR_INT_ERR; /* Invalid index nunber */
mbed_official	5:b3b3370574cf	709	}
mbed_official	5:b3b3370574cf	710	return res;
emilmont	1:46ce1e16c870	711	}
emilmont	1:46ce1e16c870	712
emilmont	1:46ce1e16c870	713
emilmont	1:46ce1e16c870	714	static
mbed_official	5:b3b3370574cf	715	void clear_lock ( /* Clear lock entries of the volume */
mbed_official	5:b3b3370574cf	716	FATFS *fs
emilmont	1:46ce1e16c870	717	)
emilmont	1:46ce1e16c870	718	{
mbed_official	5:b3b3370574cf	719	UINT i;
mbed_official	5:b3b3370574cf	720
mbed_official	5:b3b3370574cf	721	for (i = 0; i < _FS_LOCK; i++) {
mbed_official	5:b3b3370574cf	722	if (Files[i].fs == fs) Files[i].fs = 0;
mbed_official	5:b3b3370574cf	723	}
emilmont	1:46ce1e16c870	724	}
emilmont	1:46ce1e16c870	725	#endif
emilmont	1:46ce1e16c870	726
emilmont	1:46ce1e16c870	727
emilmont	1:46ce1e16c870	728
mbed_official	5:b3b3370574cf	729
emilmont	1:46ce1e16c870	730	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	731	/* Move/Flush disk access window in the file system object */
emilmont	1:46ce1e16c870	732	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	733	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	734	static
mbed_official	6:a5fcdbf92056	735	FRESULT sync_window ( /* FR_OK:succeeded, !=0:error */
mbed_official	5:b3b3370574cf	736	FATFS* fs /* File system object */
mbed_official	5:b3b3370574cf	737	)
mbed_official	5:b3b3370574cf	738	{
mbed_official	5:b3b3370574cf	739	DWORD wsect;
mbed_official	5:b3b3370574cf	740	UINT nf;
mbed_official	5:b3b3370574cf	741	FRESULT res = FR_OK;
mbed_official	5:b3b3370574cf	742
mbed_official	5:b3b3370574cf	743
mbed_official	5:b3b3370574cf	744	if (fs->wflag) { /* Write back the sector if it is dirty */
mbed_official	5:b3b3370574cf	745	wsect = fs->winsect; /* Current sector number */
mbed_official	5:b3b3370574cf	746	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK) {
mbed_official	5:b3b3370574cf	747	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	748	} else {
mbed_official	5:b3b3370574cf	749	fs->wflag = 0;
mbed_official	5:b3b3370574cf	750	if (wsect - fs->fatbase < fs->fsize) { /* Is it in the FAT area? */
mbed_official	5:b3b3370574cf	751	for (nf = fs->n_fats; nf >= 2; nf--) { /* Reflect the change to all FAT copies */
mbed_official	5:b3b3370574cf	752	wsect += fs->fsize;
mbed_official	5:b3b3370574cf	753	disk_write(fs->drv, fs->win, wsect, 1);
mbed_official	5:b3b3370574cf	754	}
mbed_official	5:b3b3370574cf	755	}
mbed_official	5:b3b3370574cf	756	}
mbed_official	5:b3b3370574cf	757	}
mbed_official	5:b3b3370574cf	758	return res;
mbed_official	5:b3b3370574cf	759	}
mbed_official	5:b3b3370574cf	760	#endif
mbed_official	5:b3b3370574cf	761
emilmont	1:46ce1e16c870	762
emilmont	1:46ce1e16c870	763	static
mbed_official	6:a5fcdbf92056	764	FRESULT move_window ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	5:b3b3370574cf	765	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	766	DWORD sector /* Sector number to make appearance in the fs->win[] */
mbed_official	5:b3b3370574cf	767	)
emilmont	1:46ce1e16c870	768	{
mbed_official	5:b3b3370574cf	769	FRESULT res = FR_OK;
mbed_official	5:b3b3370574cf	770
mbed_official	5:b3b3370574cf	771
mbed_official	5:b3b3370574cf	772	if (sector != fs->winsect) { /* Window offset changed? */
emilmont	1:46ce1e16c870	773	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	774	res = sync_window(fs); /* Write-back changes */
emilmont	1:46ce1e16c870	775	#endif
mbed_official	5:b3b3370574cf	776	if (res == FR_OK) { /* Fill sector window with new data */
mbed_official	5:b3b3370574cf	777	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK) {
mbed_official	5:b3b3370574cf	778	sector = 0xFFFFFFFF; /* Invalidate window if data is not reliable */
mbed_official	5:b3b3370574cf	779	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	780	}
mbed_official	5:b3b3370574cf	781	fs->winsect = sector;
mbed_official	5:b3b3370574cf	782	}
mbed_official	5:b3b3370574cf	783	}
mbed_official	5:b3b3370574cf	784	return res;
emilmont	1:46ce1e16c870	785	}
emilmont	1:46ce1e16c870	786
emilmont	1:46ce1e16c870	787
emilmont	1:46ce1e16c870	788
emilmont	1:46ce1e16c870	789
emilmont	1:46ce1e16c870	790	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	791	/* Synchronize file system and strage device */
emilmont	1:46ce1e16c870	792	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	793	#if !_FS_READONLY
emilmont	1:46ce1e16c870	794	static
mbed_official	6:a5fcdbf92056	795	FRESULT sync_fs ( /* FR_OK:succeeded, !=0:error */
mbed_official	5:b3b3370574cf	796	FATFS* fs /* File system object */
emilmont	1:46ce1e16c870	797	)
emilmont	1:46ce1e16c870	798	{
mbed_official	5:b3b3370574cf	799	FRESULT res;
mbed_official	5:b3b3370574cf	800
mbed_official	5:b3b3370574cf	801
mbed_official	5:b3b3370574cf	802	res = sync_window(fs);
mbed_official	5:b3b3370574cf	803	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	804	/* Update FSInfo sector if needed */
mbed_official	5:b3b3370574cf	805	if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) {
mbed_official	6:a5fcdbf92056	806	/* Create FSInfo structure */
mbed_official	5:b3b3370574cf	807	mem_set(fs->win, 0, SS(fs));
mbed_official	5:b3b3370574cf	808	ST_WORD(fs->win + BS_55AA, 0xAA55);
mbed_official	5:b3b3370574cf	809	ST_DWORD(fs->win + FSI_LeadSig, 0x41615252);
mbed_official	5:b3b3370574cf	810	ST_DWORD(fs->win + FSI_StrucSig, 0x61417272);
mbed_official	5:b3b3370574cf	811	ST_DWORD(fs->win + FSI_Free_Count, fs->free_clust);
mbed_official	5:b3b3370574cf	812	ST_DWORD(fs->win + FSI_Nxt_Free, fs->last_clust);
mbed_official	6:a5fcdbf92056	813	/* Write it into the FSInfo sector */
mbed_official	5:b3b3370574cf	814	fs->winsect = fs->volbase + 1;
mbed_official	5:b3b3370574cf	815	disk_write(fs->drv, fs->win, fs->winsect, 1);
mbed_official	5:b3b3370574cf	816	fs->fsi_flag = 0;
mbed_official	5:b3b3370574cf	817	}
mbed_official	5:b3b3370574cf	818	/* Make sure that no pending write process in the physical drive */
mbed_official	5:b3b3370574cf	819	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
mbed_official	5:b3b3370574cf	820	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	821	}
mbed_official	5:b3b3370574cf	822
mbed_official	5:b3b3370574cf	823	return res;
emilmont	1:46ce1e16c870	824	}
emilmont	1:46ce1e16c870	825	#endif
emilmont	1:46ce1e16c870	826
emilmont	1:46ce1e16c870	827
emilmont	1:46ce1e16c870	828
emilmont	1:46ce1e16c870	829
emilmont	1:46ce1e16c870	830	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	831	/* Get sector# from cluster# */
emilmont	1:46ce1e16c870	832	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	833	/* Hidden API for hacks and disk tools */
mbed_official	5:b3b3370574cf	834
mbed_official	6:a5fcdbf92056	835	DWORD clust2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */
mbed_official	5:b3b3370574cf	836	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	837	DWORD clst /* Cluster# to be converted */
emilmont	1:46ce1e16c870	838	)
emilmont	1:46ce1e16c870	839	{
mbed_official	5:b3b3370574cf	840	clst -= 2;
mbed_official	5:b3b3370574cf	841	if (clst >= fs->n_fatent - 2) return 0; /* Invalid cluster# */
mbed_official	5:b3b3370574cf	842	return clst * fs->csize + fs->database;
emilmont	1:46ce1e16c870	843	}
emilmont	1:46ce1e16c870	844
emilmont	1:46ce1e16c870	845
emilmont	1:46ce1e16c870	846
emilmont	1:46ce1e16c870	847
emilmont	1:46ce1e16c870	848	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	849	/* FAT access - Read value of a FAT entry */
emilmont	1:46ce1e16c870	850	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	851	/* Hidden API for hacks and disk tools */
mbed_official	5:b3b3370574cf	852
mbed_official	5:b3b3370574cf	853	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluster status */
mbed_official	5:b3b3370574cf	854	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	855	DWORD clst /* FAT index number (cluster number) to get the value */
emilmont	1:46ce1e16c870	856	)
emilmont	1:46ce1e16c870	857	{
mbed_official	5:b3b3370574cf	858	UINT wc, bc;
mbed_official	5:b3b3370574cf	859	BYTE *p;
mbed_official	5:b3b3370574cf	860	DWORD val;
mbed_official	5:b3b3370574cf	861
mbed_official	5:b3b3370574cf	862
mbed_official	6:a5fcdbf92056	863	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
mbed_official	5:b3b3370574cf	864	val = 1; /* Internal error */
mbed_official	5:b3b3370574cf	865
mbed_official	5:b3b3370574cf	866	} else {
mbed_official	5:b3b3370574cf	867	val = 0xFFFFFFFF; /* Default value falls on disk error */
mbed_official	5:b3b3370574cf	868
mbed_official	5:b3b3370574cf	869	switch (fs->fs_type) {
mbed_official	5:b3b3370574cf	870	case FS_FAT12 :
mbed_official	5:b3b3370574cf	871	bc = (UINT)clst; bc += bc / 2;
mbed_official	5:b3b3370574cf	872	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
mbed_official	5:b3b3370574cf	873	wc = fs->win[bc++ % SS(fs)];
mbed_official	5:b3b3370574cf	874	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
mbed_official	5:b3b3370574cf	875	wc \|= fs->win[bc % SS(fs)] << 8;
mbed_official	5:b3b3370574cf	876	val = clst & 1 ? wc >> 4 : (wc & 0xFFF);
mbed_official	5:b3b3370574cf	877	break;
mbed_official	5:b3b3370574cf	878
mbed_official	5:b3b3370574cf	879	case FS_FAT16 :
mbed_official	5:b3b3370574cf	880	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break;
mbed_official	5:b3b3370574cf	881	p = &fs->win[clst * 2 % SS(fs)];
mbed_official	5:b3b3370574cf	882	val = LD_WORD(p);
mbed_official	5:b3b3370574cf	883	break;
mbed_official	5:b3b3370574cf	884
mbed_official	5:b3b3370574cf	885	case FS_FAT32 :
mbed_official	5:b3b3370574cf	886	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;
mbed_official	5:b3b3370574cf	887	p = &fs->win[clst * 4 % SS(fs)];
mbed_official	5:b3b3370574cf	888	val = LD_DWORD(p) & 0x0FFFFFFF;
mbed_official	5:b3b3370574cf	889	break;
mbed_official	5:b3b3370574cf	890
mbed_official	5:b3b3370574cf	891	default:
mbed_official	5:b3b3370574cf	892	val = 1; /* Internal error */
mbed_official	5:b3b3370574cf	893	}
mbed_official	5:b3b3370574cf	894	}
mbed_official	5:b3b3370574cf	895
mbed_official	5:b3b3370574cf	896	return val;
emilmont	1:46ce1e16c870	897	}
emilmont	1:46ce1e16c870	898
emilmont	1:46ce1e16c870	899
emilmont	1:46ce1e16c870	900
emilmont	1:46ce1e16c870	901
emilmont	1:46ce1e16c870	902	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	903	/* FAT access - Change value of a FAT entry */
emilmont	1:46ce1e16c870	904	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	905	/* Hidden API for hacks and disk tools */
mbed_official	5:b3b3370574cf	906
emilmont	1:46ce1e16c870	907	#if !_FS_READONLY
mbed_official	6:a5fcdbf92056	908	FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	6:a5fcdbf92056	909	FATFS* fs, /* File system object */
mbed_official	6:a5fcdbf92056	910	DWORD clst, /* FAT index number (cluster number) to be changed */
mbed_official	6:a5fcdbf92056	911	DWORD val /* New value to be set to the entry */
emilmont	1:46ce1e16c870	912	)
emilmont	1:46ce1e16c870	913	{
mbed_official	5:b3b3370574cf	914	UINT bc;
mbed_official	5:b3b3370574cf	915	BYTE *p;
mbed_official	5:b3b3370574cf	916	FRESULT res;
mbed_official	5:b3b3370574cf	917
mbed_official	5:b3b3370574cf	918
mbed_official	6:a5fcdbf92056	919	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
mbed_official	5:b3b3370574cf	920	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	921
mbed_official	5:b3b3370574cf	922	} else {
mbed_official	5:b3b3370574cf	923	switch (fs->fs_type) {
mbed_official	5:b3b3370574cf	924	case FS_FAT12 :
mbed_official	5:b3b3370574cf	925	bc = (UINT)clst; bc += bc / 2;
mbed_official	5:b3b3370574cf	926	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mbed_official	5:b3b3370574cf	927	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	928	p = &fs->win[bc++ % SS(fs)];
mbed_official	5:b3b3370574cf	929	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
mbed_official	5:b3b3370574cf	930	fs->wflag = 1;
mbed_official	5:b3b3370574cf	931	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mbed_official	5:b3b3370574cf	932	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	933	p = &fs->win[bc % SS(fs)];
mbed_official	5:b3b3370574cf	934	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
mbed_official	5:b3b3370574cf	935	fs->wflag = 1;
mbed_official	5:b3b3370574cf	936	break;
mbed_official	5:b3b3370574cf	937
mbed_official	5:b3b3370574cf	938	case FS_FAT16 :
mbed_official	5:b3b3370574cf	939	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
mbed_official	5:b3b3370574cf	940	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	941	p = &fs->win[clst * 2 % SS(fs)];
mbed_official	5:b3b3370574cf	942	ST_WORD(p, (WORD)val);
mbed_official	5:b3b3370574cf	943	fs->wflag = 1;
mbed_official	5:b3b3370574cf	944	break;
mbed_official	5:b3b3370574cf	945
mbed_official	5:b3b3370574cf	946	case FS_FAT32 :
mbed_official	5:b3b3370574cf	947	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
mbed_official	5:b3b3370574cf	948	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	949	p = &fs->win[clst * 4 % SS(fs)];
mbed_official	5:b3b3370574cf	950	val \|= LD_DWORD(p) & 0xF0000000;
mbed_official	5:b3b3370574cf	951	ST_DWORD(p, val);
mbed_official	5:b3b3370574cf	952	fs->wflag = 1;
mbed_official	5:b3b3370574cf	953	break;
mbed_official	5:b3b3370574cf	954
mbed_official	5:b3b3370574cf	955	default :
mbed_official	5:b3b3370574cf	956	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	957	}
mbed_official	5:b3b3370574cf	958	}
mbed_official	5:b3b3370574cf	959
mbed_official	5:b3b3370574cf	960	return res;
emilmont	1:46ce1e16c870	961	}
emilmont	1:46ce1e16c870	962	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	963
emilmont	1:46ce1e16c870	964
emilmont	1:46ce1e16c870	965
emilmont	1:46ce1e16c870	966
emilmont	1:46ce1e16c870	967	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	968	/* FAT handling - Remove a cluster chain */
emilmont	1:46ce1e16c870	969	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	970	#if !_FS_READONLY
emilmont	1:46ce1e16c870	971	static
mbed_official	6:a5fcdbf92056	972	FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	5:b3b3370574cf	973	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	974	DWORD clst /* Cluster# to remove a chain from */
emilmont	1:46ce1e16c870	975	)
emilmont	1:46ce1e16c870	976	{
mbed_official	5:b3b3370574cf	977	FRESULT res;
mbed_official	5:b3b3370574cf	978	DWORD nxt;
mbed_official	5:b3b3370574cf	979	#if _USE_TRIM
mbed_official	5:b3b3370574cf	980	DWORD scl = clst, ecl = clst, rt[2];
emilmont	1:46ce1e16c870	981	#endif
emilmont	1:46ce1e16c870	982
mbed_official	6:a5fcdbf92056	983	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
mbed_official	5:b3b3370574cf	984	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	985
mbed_official	5:b3b3370574cf	986	} else {
mbed_official	5:b3b3370574cf	987	res = FR_OK;
mbed_official	5:b3b3370574cf	988	while (clst < fs->n_fatent) { /* Not a last link? */
mbed_official	5:b3b3370574cf	989	nxt = get_fat(fs, clst); /* Get cluster status */
mbed_official	5:b3b3370574cf	990	if (nxt == 0) break; /* Empty cluster? */
mbed_official	5:b3b3370574cf	991	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
mbed_official	5:b3b3370574cf	992	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
mbed_official	5:b3b3370574cf	993	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
mbed_official	5:b3b3370574cf	994	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	995	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSINFO */
mbed_official	5:b3b3370574cf	996	fs->free_clust++;
mbed_official	5:b3b3370574cf	997	fs->fsi_flag \|= 1;
mbed_official	5:b3b3370574cf	998	}
mbed_official	5:b3b3370574cf	999	#if _USE_TRIM
mbed_official	5:b3b3370574cf	1000	if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
mbed_official	5:b3b3370574cf	1001	ecl = nxt;
mbed_official	5:b3b3370574cf	1002	} else { /* End of contiguous clusters */
mbed_official	5:b3b3370574cf	1003	rt[0] = clust2sect(fs, scl); /* Start sector */
mbed_official	5:b3b3370574cf	1004	rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
mbed_official	5:b3b3370574cf	1005	disk_ioctl(fs->drv, CTRL_TRIM, rt); /* Erase the block */
mbed_official	5:b3b3370574cf	1006	scl = ecl = nxt;
mbed_official	5:b3b3370574cf	1007	}
emilmont	1:46ce1e16c870	1008	#endif
mbed_official	5:b3b3370574cf	1009	clst = nxt; /* Next cluster */
mbed_official	5:b3b3370574cf	1010	}
mbed_official	5:b3b3370574cf	1011	}
mbed_official	5:b3b3370574cf	1012
mbed_official	5:b3b3370574cf	1013	return res;
emilmont	1:46ce1e16c870	1014	}
emilmont	1:46ce1e16c870	1015	#endif
emilmont	1:46ce1e16c870	1016
emilmont	1:46ce1e16c870	1017
emilmont	1:46ce1e16c870	1018
emilmont	1:46ce1e16c870	1019
emilmont	1:46ce1e16c870	1020	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1021	/* FAT handling - Stretch or Create a cluster chain */
emilmont	1:46ce1e16c870	1022	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1023	#if !_FS_READONLY
emilmont	1:46ce1e16c870	1024	static
mbed_official	5:b3b3370574cf	1025	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
mbed_official	5:b3b3370574cf	1026	FATFS* fs, /* File system object */
mbed_official	6:a5fcdbf92056	1027	DWORD clst /* Cluster# to stretch, 0:Create a new chain */
emilmont	1:46ce1e16c870	1028	)
emilmont	1:46ce1e16c870	1029	{
mbed_official	5:b3b3370574cf	1030	DWORD cs, ncl, scl;
mbed_official	5:b3b3370574cf	1031	FRESULT res;
mbed_official	5:b3b3370574cf	1032
mbed_official	5:b3b3370574cf	1033
mbed_official	5:b3b3370574cf	1034	if (clst == 0) { /* Create a new chain */
mbed_official	5:b3b3370574cf	1035	scl = fs->last_clust; /* Get suggested start point */
mbed_official	5:b3b3370574cf	1036	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
mbed_official	5:b3b3370574cf	1037	}
mbed_official	5:b3b3370574cf	1038	else { /* Stretch the current chain */
mbed_official	5:b3b3370574cf	1039	cs = get_fat(fs, clst); /* Check the cluster status */
mbed_official	5:b3b3370574cf	1040	if (cs < 2) return 1; /* Invalid value */
mbed_official	5:b3b3370574cf	1041	if (cs == 0xFFFFFFFF) return cs; /* A disk error occurred */
mbed_official	5:b3b3370574cf	1042	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
mbed_official	5:b3b3370574cf	1043	scl = clst;
mbed_official	5:b3b3370574cf	1044	}
mbed_official	5:b3b3370574cf	1045
mbed_official	5:b3b3370574cf	1046	ncl = scl; /* Start cluster */
mbed_official	5:b3b3370574cf	1047	for (;;) {
mbed_official	5:b3b3370574cf	1048	ncl++; /* Next cluster */
mbed_official	5:b3b3370574cf	1049	if (ncl >= fs->n_fatent) { /* Check wrap around */
mbed_official	5:b3b3370574cf	1050	ncl = 2;
mbed_official	5:b3b3370574cf	1051	if (ncl > scl) return 0; /* No free cluster */
mbed_official	5:b3b3370574cf	1052	}
mbed_official	5:b3b3370574cf	1053	cs = get_fat(fs, ncl); /* Get the cluster status */
mbed_official	5:b3b3370574cf	1054	if (cs == 0) break; /* Found a free cluster */
mbed_official	5:b3b3370574cf	1055	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
mbed_official	5:b3b3370574cf	1056	return cs;
mbed_official	5:b3b3370574cf	1057	if (ncl == scl) return 0; /* No free cluster */
mbed_official	5:b3b3370574cf	1058	}
mbed_official	5:b3b3370574cf	1059
mbed_official	5:b3b3370574cf	1060	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
mbed_official	5:b3b3370574cf	1061	if (res == FR_OK && clst != 0) {
mbed_official	5:b3b3370574cf	1062	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
mbed_official	5:b3b3370574cf	1063	}
mbed_official	5:b3b3370574cf	1064	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1065	fs->last_clust = ncl; /* Update FSINFO */
mbed_official	5:b3b3370574cf	1066	if (fs->free_clust != 0xFFFFFFFF) {
mbed_official	5:b3b3370574cf	1067	fs->free_clust--;
mbed_official	5:b3b3370574cf	1068	fs->fsi_flag \|= 1;
mbed_official	5:b3b3370574cf	1069	}
mbed_official	5:b3b3370574cf	1070	} else {
mbed_official	5:b3b3370574cf	1071	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
mbed_official	5:b3b3370574cf	1072	}
mbed_official	5:b3b3370574cf	1073
mbed_official	5:b3b3370574cf	1074	return ncl; /* Return new cluster number or error code */
emilmont	1:46ce1e16c870	1075	}
emilmont	1:46ce1e16c870	1076	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	1077
emilmont	1:46ce1e16c870	1078
emilmont	1:46ce1e16c870	1079
mbed_official	5:b3b3370574cf	1080
emilmont	1:46ce1e16c870	1081	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1082	/* FAT handling - Convert offset into cluster with link map table */
emilmont	1:46ce1e16c870	1083	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1084
emilmont	1:46ce1e16c870	1085	#if _USE_FASTSEEK
emilmont	1:46ce1e16c870	1086	static
mbed_official	5:b3b3370574cf	1087	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
mbed_official	5:b3b3370574cf	1088	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	1089	DWORD ofs /* File offset to be converted to cluster# */
emilmont	1:46ce1e16c870	1090	)
emilmont	1:46ce1e16c870	1091	{
mbed_official	5:b3b3370574cf	1092	DWORD cl, ncl, *tbl;
mbed_official	5:b3b3370574cf	1093
mbed_official	5:b3b3370574cf	1094
mbed_official	5:b3b3370574cf	1095	tbl = fp->cltbl + 1; /* Top of CLMT */
mbed_official	5:b3b3370574cf	1096	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
mbed_official	5:b3b3370574cf	1097	for (;;) {
mbed_official	5:b3b3370574cf	1098	ncl = tbl++; / Number of cluters in the fragment */
mbed_official	5:b3b3370574cf	1099	if (!ncl) return 0; /* End of table? (error) */
mbed_official	5:b3b3370574cf	1100	if (cl < ncl) break; /* In this fragment? */
mbed_official	5:b3b3370574cf	1101	cl -= ncl; tbl++; /* Next fragment */
mbed_official	5:b3b3370574cf	1102	}
mbed_official	5:b3b3370574cf	1103	return cl + tbl; / Return the cluster number */
emilmont	1:46ce1e16c870	1104	}
mbed_official	5:b3b3370574cf	1105	#endif /* _USE_FASTSEEK */
mbed_official	5:b3b3370574cf	1106
emilmont	1:46ce1e16c870	1107
emilmont	1:46ce1e16c870	1108
emilmont	1:46ce1e16c870	1109
emilmont	1:46ce1e16c870	1110	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1111	/* Directory handling - Set directory index */
emilmont	1:46ce1e16c870	1112	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1113
emilmont	1:46ce1e16c870	1114	static
mbed_official	6:a5fcdbf92056	1115	FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	5:b3b3370574cf	1116	FATFS_DIR* dp, /* Pointer to directory object */
mbed_official	5:b3b3370574cf	1117	UINT idx /* Index of directory table */
emilmont	1:46ce1e16c870	1118	)
emilmont	1:46ce1e16c870	1119	{
mbed_official	5:b3b3370574cf	1120	DWORD clst, sect;
mbed_official	5:b3b3370574cf	1121	UINT ic;
mbed_official	5:b3b3370574cf	1122
mbed_official	5:b3b3370574cf	1123
mbed_official	5:b3b3370574cf	1124	dp->index = (WORD)idx; /* Current index */
mbed_official	5:b3b3370574cf	1125	clst = dp->sclust; /* Table start cluster (0:root) */
mbed_official	5:b3b3370574cf	1126	if (clst == 1 \|\| clst >= dp->fs->n_fatent) /* Check start cluster range */
mbed_official	5:b3b3370574cf	1127	return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1128	if (!clst && dp->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
mbed_official	5:b3b3370574cf	1129	clst = dp->fs->dirbase;
mbed_official	5:b3b3370574cf	1130
mbed_official	5:b3b3370574cf	1131	if (clst == 0) { /* Static table (root-directory in FAT12/16) */
mbed_official	5:b3b3370574cf	1132	if (idx >= dp->fs->n_rootdir) /* Is index out of range? */
mbed_official	5:b3b3370574cf	1133	return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1134	sect = dp->fs->dirbase;
mbed_official	5:b3b3370574cf	1135	}
mbed_official	5:b3b3370574cf	1136	else { /* Dynamic table (root-directory in FAT32 or sub-directory) */
mbed_official	5:b3b3370574cf	1137	ic = SS(dp->fs) / SZ_DIRE * dp->fs->csize; /* Entries per cluster */
mbed_official	5:b3b3370574cf	1138	while (idx >= ic) { /* Follow cluster chain */
mbed_official	5:b3b3370574cf	1139	clst = get_fat(dp->fs, clst); /* Get next cluster */
mbed_official	5:b3b3370574cf	1140	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
mbed_official	5:b3b3370574cf	1141	if (clst < 2 \|\| clst >= dp->fs->n_fatent) /* Reached to end of table or internal error */
mbed_official	5:b3b3370574cf	1142	return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1143	idx -= ic;
mbed_official	5:b3b3370574cf	1144	}
mbed_official	5:b3b3370574cf	1145	sect = clust2sect(dp->fs, clst);
mbed_official	5:b3b3370574cf	1146	}
mbed_official	5:b3b3370574cf	1147	dp->clust = clst; /* Current cluster# */
mbed_official	5:b3b3370574cf	1148	if (!sect) return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1149	dp->sect = sect + idx / (SS(dp->fs) / SZ_DIRE); /* Sector# of the directory entry */
mbed_official	6:a5fcdbf92056	1150	dp->dir = dp->fs->win + (idx % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Ptr to the entry in the sector */
mbed_official	5:b3b3370574cf	1151
mbed_official	5:b3b3370574cf	1152	return FR_OK;
emilmont	1:46ce1e16c870	1153	}
emilmont	1:46ce1e16c870	1154
emilmont	1:46ce1e16c870	1155
emilmont	1:46ce1e16c870	1156
emilmont	1:46ce1e16c870	1157
emilmont	1:46ce1e16c870	1158	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1159	/* Directory handling - Move directory table index next */
emilmont	1:46ce1e16c870	1160	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1161
emilmont	1:46ce1e16c870	1162	static
mbed_official	6:a5fcdbf92056	1163	FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
mbed_official	5:b3b3370574cf	1164	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1165	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
emilmont	1:46ce1e16c870	1166	)
emilmont	1:46ce1e16c870	1167	{
mbed_official	5:b3b3370574cf	1168	DWORD clst;
mbed_official	5:b3b3370574cf	1169	UINT i;
mbed_official	5:b3b3370574cf	1170	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	1171	UINT c;
mbed_official	5:b3b3370574cf	1172	#endif
mbed_official	5:b3b3370574cf	1173
mbed_official	5:b3b3370574cf	1174
mbed_official	5:b3b3370574cf	1175	i = dp->index + 1;
mbed_official	5:b3b3370574cf	1176	if (!(i & 0xFFFF) \|\| !dp->sect) /* Report EOT when index has reached 65535 */
mbed_official	5:b3b3370574cf	1177	return FR_NO_FILE;
mbed_official	5:b3b3370574cf	1178
mbed_official	5:b3b3370574cf	1179	if (!(i % (SS(dp->fs) / SZ_DIRE))) { /* Sector changed? */
mbed_official	5:b3b3370574cf	1180	dp->sect++; /* Next sector */
mbed_official	5:b3b3370574cf	1181
mbed_official	5:b3b3370574cf	1182	if (!dp->clust) { /* Static table */
mbed_official	5:b3b3370574cf	1183	if (i >= dp->fs->n_rootdir) /* Report EOT if it reached end of static table */
mbed_official	5:b3b3370574cf	1184	return FR_NO_FILE;
mbed_official	5:b3b3370574cf	1185	}
mbed_official	5:b3b3370574cf	1186	else { /* Dynamic table */
mbed_official	5:b3b3370574cf	1187	if (((i / (SS(dp->fs) / SZ_DIRE)) & (dp->fs->csize - 1)) == 0) { /* Cluster changed? */
mbed_official	5:b3b3370574cf	1188	clst = get_fat(dp->fs, dp->clust); /* Get next cluster */
mbed_official	5:b3b3370574cf	1189	if (clst <= 1) return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1190	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	1191	if (clst >= dp->fs->n_fatent) { /* If it reached end of dynamic table, */
emilmont	1:46ce1e16c870	1192	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	1193	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT */
mbed_official	5:b3b3370574cf	1194	clst = create_chain(dp->fs, dp->clust); /* Stretch cluster chain */
mbed_official	5:b3b3370574cf	1195	if (clst == 0) return FR_DENIED; /* No free cluster */
mbed_official	5:b3b3370574cf	1196	if (clst == 1) return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1197	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	1198	/* Clean-up stretched table */
mbed_official	5:b3b3370574cf	1199	if (sync_window(dp->fs)) return FR_DISK_ERR;/* Flush disk access window */
mbed_official	5:b3b3370574cf	1200	mem_set(dp->fs->win, 0, SS(dp->fs)); /* Clear window buffer */
mbed_official	5:b3b3370574cf	1201	dp->fs->winsect = clust2sect(dp->fs, clst); /* Cluster start sector */
mbed_official	5:b3b3370574cf	1202	for (c = 0; c < dp->fs->csize; c++) { /* Fill the new cluster with 0 */
mbed_official	5:b3b3370574cf	1203	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1204	if (sync_window(dp->fs)) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	1205	dp->fs->winsect++;
mbed_official	5:b3b3370574cf	1206	}
mbed_official	5:b3b3370574cf	1207	dp->fs->winsect -= c; /* Rewind window offset */
emilmont	1:46ce1e16c870	1208	#else
mbed_official	5:b3b3370574cf	1209	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT (this is to suppress warning) */
mbed_official	5:b3b3370574cf	1210	return FR_NO_FILE; /* Report EOT */
emilmont	1:46ce1e16c870	1211	#endif
mbed_official	5:b3b3370574cf	1212	}
mbed_official	5:b3b3370574cf	1213	dp->clust = clst; /* Initialize data for new cluster */
mbed_official	5:b3b3370574cf	1214	dp->sect = clust2sect(dp->fs, clst);
mbed_official	5:b3b3370574cf	1215	}
mbed_official	5:b3b3370574cf	1216	}
mbed_official	5:b3b3370574cf	1217	}
mbed_official	5:b3b3370574cf	1218
mbed_official	5:b3b3370574cf	1219	dp->index = (WORD)i; /* Current index */
mbed_official	6:a5fcdbf92056	1220	dp->dir = dp->fs->win + (i % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Current entry in the window */
mbed_official	5:b3b3370574cf	1221
mbed_official	5:b3b3370574cf	1222	return FR_OK;
emilmont	1:46ce1e16c870	1223	}
emilmont	1:46ce1e16c870	1224
emilmont	1:46ce1e16c870	1225
emilmont	1:46ce1e16c870	1226
emilmont	1:46ce1e16c870	1227
emilmont	1:46ce1e16c870	1228	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1229	/* Directory handling - Reserve directory entry */
mbed_official	5:b3b3370574cf	1230	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1231
mbed_official	5:b3b3370574cf	1232	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	1233	static
mbed_official	6:a5fcdbf92056	1234	FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	6:a5fcdbf92056	1235	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	6:a5fcdbf92056	1236	UINT nent /* Number of contiguous entries to allocate (1-21) */
mbed_official	5:b3b3370574cf	1237	)
mbed_official	5:b3b3370574cf	1238	{
mbed_official	5:b3b3370574cf	1239	FRESULT res;
mbed_official	5:b3b3370574cf	1240	UINT n;
mbed_official	5:b3b3370574cf	1241
mbed_official	5:b3b3370574cf	1242
mbed_official	5:b3b3370574cf	1243	res = dir_sdi(dp, 0);
mbed_official	5:b3b3370574cf	1244	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1245	n = 0;
mbed_official	5:b3b3370574cf	1246	do {
mbed_official	5:b3b3370574cf	1247	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1248	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1249	if (dp->dir[0] == DDEM \|\| dp->dir[0] == 0) { /* Is it a free entry? */
mbed_official	5:b3b3370574cf	1250	if (++n == nent) break; /* A block of contiguous free entries is found */
mbed_official	5:b3b3370574cf	1251	} else {
mbed_official	5:b3b3370574cf	1252	n = 0; /* Not a blank entry. Restart to search */
mbed_official	5:b3b3370574cf	1253	}
mbed_official	5:b3b3370574cf	1254	res = dir_next(dp, 1); /* Next entry with table stretch enabled */
mbed_official	5:b3b3370574cf	1255	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	1256	}
mbed_official	5:b3b3370574cf	1257	if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */
mbed_official	5:b3b3370574cf	1258	return res;
mbed_official	5:b3b3370574cf	1259	}
mbed_official	5:b3b3370574cf	1260	#endif
mbed_official	5:b3b3370574cf	1261
mbed_official	5:b3b3370574cf	1262
mbed_official	5:b3b3370574cf	1263
mbed_official	5:b3b3370574cf	1264
mbed_official	5:b3b3370574cf	1265	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1266	/* Directory handling - Load/Store start cluster number */
emilmont	1:46ce1e16c870	1267	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1268
emilmont	1:46ce1e16c870	1269	static
mbed_official	6:a5fcdbf92056	1270	DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */
mbed_official	6:a5fcdbf92056	1271	FATFS* fs, /* Pointer to the fs object */
mbed_official	6:a5fcdbf92056	1272	const BYTE* dir /* Pointer to the SFN entry */
emilmont	1:46ce1e16c870	1273	)
emilmont	1:46ce1e16c870	1274	{
mbed_official	5:b3b3370574cf	1275	DWORD cl;
mbed_official	5:b3b3370574cf	1276
mbed_official	6:a5fcdbf92056	1277	cl = LD_WORD(dir + DIR_FstClusLO);
mbed_official	5:b3b3370574cf	1278	if (fs->fs_type == FS_FAT32)
mbed_official	6:a5fcdbf92056	1279	cl \|= (DWORD)LD_WORD(dir + DIR_FstClusHI) << 16;
mbed_official	5:b3b3370574cf	1280
mbed_official	5:b3b3370574cf	1281	return cl;
emilmont	1:46ce1e16c870	1282	}
emilmont	1:46ce1e16c870	1283
emilmont	1:46ce1e16c870	1284
emilmont	1:46ce1e16c870	1285	#if !_FS_READONLY
emilmont	1:46ce1e16c870	1286	static
emilmont	1:46ce1e16c870	1287	void st_clust (
mbed_official	6:a5fcdbf92056	1288	BYTE* dir, /* Pointer to the SFN entry */
mbed_official	5:b3b3370574cf	1289	DWORD cl /* Value to be set */
emilmont	1:46ce1e16c870	1290	)
emilmont	1:46ce1e16c870	1291	{
mbed_official	6:a5fcdbf92056	1292	ST_WORD(dir + DIR_FstClusLO, cl);
mbed_official	6:a5fcdbf92056	1293	ST_WORD(dir + DIR_FstClusHI, cl >> 16);
emilmont	1:46ce1e16c870	1294	}
emilmont	1:46ce1e16c870	1295	#endif
emilmont	1:46ce1e16c870	1296
emilmont	1:46ce1e16c870	1297
emilmont	1:46ce1e16c870	1298
mbed_official	5:b3b3370574cf	1299
emilmont	1:46ce1e16c870	1300	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1301	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
emilmont	1:46ce1e16c870	1302	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1303	#if _USE_LFN
emilmont	1:46ce1e16c870	1304	static
mbed_official	5:b3b3370574cf	1305	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	1306
emilmont	1:46ce1e16c870	1307
emilmont	1:46ce1e16c870	1308	static
mbed_official	6:a5fcdbf92056	1309	int cmp_lfn ( /* 1:matched, 0:not matched */
mbed_official	6:a5fcdbf92056	1310	WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */
mbed_official	6:a5fcdbf92056	1311	BYTE* dir /* Pointer to the directory entry containing the part of LFN */
emilmont	1:46ce1e16c870	1312	)
emilmont	1:46ce1e16c870	1313	{
mbed_official	5:b3b3370574cf	1314	UINT i, s;
mbed_official	5:b3b3370574cf	1315	WCHAR wc, uc;
mbed_official	5:b3b3370574cf	1316
mbed_official	5:b3b3370574cf	1317
mbed_official	6:a5fcdbf92056	1318	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
mbed_official	6:a5fcdbf92056	1319
mbed_official	6:a5fcdbf92056	1320	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
mbed_official	6:a5fcdbf92056	1321
mbed_official	6:a5fcdbf92056	1322	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
mbed_official	6:a5fcdbf92056	1323	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
mbed_official	6:a5fcdbf92056	1324	if (wc) {
mbed_official	6:a5fcdbf92056	1325	if (i >= _MAX_LFN \|\| ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) /* Compare it */
mbed_official	6:a5fcdbf92056	1326	return 0; /* Not matched */
mbed_official	6:a5fcdbf92056	1327	wc = uc;
mbed_official	5:b3b3370574cf	1328	} else {
mbed_official	6:a5fcdbf92056	1329	if (uc != 0xFFFF) return 0; /* Check filler */
mbed_official	5:b3b3370574cf	1330	}
mbed_official	6:a5fcdbf92056	1331	}
mbed_official	6:a5fcdbf92056	1332
mbed_official	6:a5fcdbf92056	1333	if ((dir[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) /* Last segment matched but different length */
mbed_official	5:b3b3370574cf	1334	return 0;
mbed_official	5:b3b3370574cf	1335
mbed_official	6:a5fcdbf92056	1336	return 1; /* The part of LFN matched */
emilmont	1:46ce1e16c870	1337	}
emilmont	1:46ce1e16c870	1338
emilmont	1:46ce1e16c870	1339
emilmont	1:46ce1e16c870	1340
emilmont	1:46ce1e16c870	1341	static
mbed_official	6:a5fcdbf92056	1342	int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */
mbed_official	6:a5fcdbf92056	1343	WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
mbed_official	6:a5fcdbf92056	1344	BYTE* dir /* Pointer to the LFN entry */
emilmont	1:46ce1e16c870	1345	)
emilmont	1:46ce1e16c870	1346	{
mbed_official	5:b3b3370574cf	1347	UINT i, s;
mbed_official	5:b3b3370574cf	1348	WCHAR wc, uc;
mbed_official	5:b3b3370574cf	1349
mbed_official	5:b3b3370574cf	1350
mbed_official	6:a5fcdbf92056	1351	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
mbed_official	6:a5fcdbf92056	1352
mbed_official	6:a5fcdbf92056	1353	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
mbed_official	6:a5fcdbf92056	1354
mbed_official	6:a5fcdbf92056	1355	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
mbed_official	6:a5fcdbf92056	1356	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
mbed_official	6:a5fcdbf92056	1357	if (wc) {
mbed_official	5:b3b3370574cf	1358	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mbed_official	5:b3b3370574cf	1359	lfnbuf[i++] = wc = uc; /* Store it */
mbed_official	5:b3b3370574cf	1360	} else {
mbed_official	5:b3b3370574cf	1361	if (uc != 0xFFFF) return 0; /* Check filler */
mbed_official	5:b3b3370574cf	1362	}
mbed_official	6:a5fcdbf92056	1363	}
mbed_official	6:a5fcdbf92056	1364
mbed_official	6:a5fcdbf92056	1365	if (dir[LDIR_Ord] & LLEF) { /* Put terminator if it is the last LFN part */
mbed_official	5:b3b3370574cf	1366	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mbed_official	5:b3b3370574cf	1367	lfnbuf[i] = 0;
mbed_official	5:b3b3370574cf	1368	}
mbed_official	5:b3b3370574cf	1369
mbed_official	6:a5fcdbf92056	1370	return 1; /* The part of LFN is valid */
emilmont	1:46ce1e16c870	1371	}
emilmont	1:46ce1e16c870	1372
emilmont	1:46ce1e16c870	1373
emilmont	1:46ce1e16c870	1374	#if !_FS_READONLY
emilmont	1:46ce1e16c870	1375	static
emilmont	1:46ce1e16c870	1376	void fit_lfn (
mbed_official	6:a5fcdbf92056	1377	const WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
mbed_official	6:a5fcdbf92056	1378	BYTE* dir, /* Pointer to the LFN entry to be processed */
mbed_official	5:b3b3370574cf	1379	BYTE ord, /* LFN order (1-20) */
mbed_official	6:a5fcdbf92056	1380	BYTE sum /* Checksum of the corresponding SFN */
emilmont	1:46ce1e16c870	1381	)
emilmont	1:46ce1e16c870	1382	{
mbed_official	5:b3b3370574cf	1383	UINT i, s;
mbed_official	5:b3b3370574cf	1384	WCHAR wc;
mbed_official	5:b3b3370574cf	1385
mbed_official	5:b3b3370574cf	1386
mbed_official	6:a5fcdbf92056	1387	dir[LDIR_Chksum] = sum; /* Set checksum */
mbed_official	6:a5fcdbf92056	1388	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
mbed_official	6:a5fcdbf92056	1389	dir[LDIR_Type] = 0;
mbed_official	6:a5fcdbf92056	1390	ST_WORD(dir + LDIR_FstClusLO, 0);
mbed_official	6:a5fcdbf92056	1391
mbed_official	6:a5fcdbf92056	1392	i = (ord - 1) * 13; /* Get offset in the LFN working buffer */
mbed_official	5:b3b3370574cf	1393	s = wc = 0;
mbed_official	5:b3b3370574cf	1394	do {
mbed_official	5:b3b3370574cf	1395	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective character */
mbed_official	6:a5fcdbf92056	1396	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
mbed_official	5:b3b3370574cf	1397	if (!wc) wc = 0xFFFF; /* Padding characters following last character */
mbed_official	5:b3b3370574cf	1398	} while (++s < 13);
mbed_official	5:b3b3370574cf	1399	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLEF; /* Bottom LFN part is the start of LFN sequence */
mbed_official	6:a5fcdbf92056	1400	dir[LDIR_Ord] = ord; /* Set the LFN order */
emilmont	1:46ce1e16c870	1401	}
emilmont	1:46ce1e16c870	1402
emilmont	1:46ce1e16c870	1403	#endif
emilmont	1:46ce1e16c870	1404	#endif
emilmont	1:46ce1e16c870	1405
emilmont	1:46ce1e16c870	1406
emilmont	1:46ce1e16c870	1407
mbed_official	5:b3b3370574cf	1408
emilmont	1:46ce1e16c870	1409	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1410	/* Create numbered name */
emilmont	1:46ce1e16c870	1411	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1412	#if _USE_LFN
mbed_official	5:b3b3370574cf	1413	static
emilmont	1:46ce1e16c870	1414	void gen_numname (
mbed_official	5:b3b3370574cf	1415	BYTE* dst, /* Pointer to the buffer to store numbered SFN */
mbed_official	5:b3b3370574cf	1416	const BYTE* src, /* Pointer to SFN */
mbed_official	5:b3b3370574cf	1417	const WCHAR* lfn, /* Pointer to LFN */
mbed_official	5:b3b3370574cf	1418	UINT seq /* Sequence number */
emilmont	1:46ce1e16c870	1419	)
emilmont	1:46ce1e16c870	1420	{
mbed_official	5:b3b3370574cf	1421	BYTE ns[8], c;
mbed_official	5:b3b3370574cf	1422	UINT i, j;
mbed_official	5:b3b3370574cf	1423	WCHAR wc;
mbed_official	5:b3b3370574cf	1424	DWORD sr;
mbed_official	5:b3b3370574cf	1425
mbed_official	5:b3b3370574cf	1426
mbed_official	5:b3b3370574cf	1427	mem_cpy(dst, src, 11);
mbed_official	5:b3b3370574cf	1428
mbed_official	5:b3b3370574cf	1429	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
mbed_official	5:b3b3370574cf	1430	sr = seq;
mbed_official	5:b3b3370574cf	1431	while (lfn) { / Create a CRC */
mbed_official	5:b3b3370574cf	1432	wc = *lfn++;
mbed_official	5:b3b3370574cf	1433	for (i = 0; i < 16; i++) {
mbed_official	5:b3b3370574cf	1434	sr = (sr << 1) + (wc & 1);
mbed_official	5:b3b3370574cf	1435	wc >>= 1;
mbed_official	5:b3b3370574cf	1436	if (sr & 0x10000) sr ^= 0x11021;
mbed_official	5:b3b3370574cf	1437	}
mbed_official	5:b3b3370574cf	1438	}
mbed_official	5:b3b3370574cf	1439	seq = (UINT)sr;
mbed_official	5:b3b3370574cf	1440	}
mbed_official	5:b3b3370574cf	1441
mbed_official	5:b3b3370574cf	1442	/* itoa (hexdecimal) */
mbed_official	5:b3b3370574cf	1443	i = 7;
mbed_official	5:b3b3370574cf	1444	do {
mbed_official	5:b3b3370574cf	1445	c = (seq % 16) + '0';
mbed_official	5:b3b3370574cf	1446	if (c > '9') c += 7;
mbed_official	5:b3b3370574cf	1447	ns[i--] = c;
mbed_official	5:b3b3370574cf	1448	seq /= 16;
mbed_official	5:b3b3370574cf	1449	} while (seq);
mbed_official	5:b3b3370574cf	1450	ns[i] = '~';
mbed_official	5:b3b3370574cf	1451
mbed_official	5:b3b3370574cf	1452	/* Append the number */
mbed_official	5:b3b3370574cf	1453	for (j = 0; j < i && dst[j] != ' '; j++) {
mbed_official	5:b3b3370574cf	1454	if (IsDBCS1(dst[j])) {
mbed_official	5:b3b3370574cf	1455	if (j == i - 1) break;
mbed_official	5:b3b3370574cf	1456	j++;
mbed_official	5:b3b3370574cf	1457	}
mbed_official	5:b3b3370574cf	1458	}
mbed_official	5:b3b3370574cf	1459	do {
mbed_official	5:b3b3370574cf	1460	dst[j++] = (i < 8) ? ns[i++] : ' ';
mbed_official	5:b3b3370574cf	1461	} while (j < 8);
emilmont	1:46ce1e16c870	1462	}
emilmont	1:46ce1e16c870	1463	#endif
emilmont	1:46ce1e16c870	1464
emilmont	1:46ce1e16c870	1465
emilmont	1:46ce1e16c870	1466
emilmont	1:46ce1e16c870	1467
emilmont	1:46ce1e16c870	1468	/-----------------------------------------------------------------------/
mbed_official	6:a5fcdbf92056	1469	/* Calculate checksum of an SFN entry */
emilmont	1:46ce1e16c870	1470	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1471	#if _USE_LFN
emilmont	1:46ce1e16c870	1472	static
emilmont	1:46ce1e16c870	1473	BYTE sum_sfn (
mbed_official	6:a5fcdbf92056	1474	const BYTE* dir /* Pointer to the SFN entry */
emilmont	1:46ce1e16c870	1475	)
emilmont	1:46ce1e16c870	1476	{
mbed_official	5:b3b3370574cf	1477	BYTE sum = 0;
mbed_official	5:b3b3370574cf	1478	UINT n = 11;
mbed_official	5:b3b3370574cf	1479
mbed_official	6:a5fcdbf92056	1480	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
mbed_official	5:b3b3370574cf	1481	return sum;
emilmont	1:46ce1e16c870	1482	}
emilmont	1:46ce1e16c870	1483	#endif
emilmont	1:46ce1e16c870	1484
emilmont	1:46ce1e16c870	1485
emilmont	1:46ce1e16c870	1486
emilmont	1:46ce1e16c870	1487
emilmont	1:46ce1e16c870	1488	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1489	/* Directory handling - Find an object in the directory */
emilmont	1:46ce1e16c870	1490	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1491
emilmont	1:46ce1e16c870	1492	static
mbed_official	6:a5fcdbf92056	1493	FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */
mbed_official	5:b3b3370574cf	1494	FATFS_DIR* dp /* Pointer to the directory object linked to the file name */
emilmont	1:46ce1e16c870	1495	)
emilmont	1:46ce1e16c870	1496	{
mbed_official	5:b3b3370574cf	1497	FRESULT res;
mbed_official	6:a5fcdbf92056	1498	BYTE c, *dir;
emilmont	1:46ce1e16c870	1499	#if _USE_LFN
mbed_official	5:b3b3370574cf	1500	BYTE a, ord, sum;
emilmont	1:46ce1e16c870	1501	#endif
emilmont	1:46ce1e16c870	1502
mbed_official	5:b3b3370574cf	1503	res = dir_sdi(dp, 0); /* Rewind directory object */
mbed_official	5:b3b3370574cf	1504	if (res != FR_OK) return res;
emilmont	1:46ce1e16c870	1505
emilmont	1:46ce1e16c870	1506	#if _USE_LFN
mbed_official	5:b3b3370574cf	1507	ord = sum = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
emilmont	1:46ce1e16c870	1508	#endif
mbed_official	5:b3b3370574cf	1509	do {
mbed_official	5:b3b3370574cf	1510	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1511	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1512	dir = dp->dir; /* Ptr to the directory entry of current index */
mbed_official	6:a5fcdbf92056	1513	c = dir[DIR_Name];
mbed_official	5:b3b3370574cf	1514	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mbed_official	5:b3b3370574cf	1515	#if _USE_LFN /* LFN configuration */
mbed_official	6:a5fcdbf92056	1516	a = dir[DIR_Attr] & AM_MASK;
mbed_official	5:b3b3370574cf	1517	if (c == DDEM \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
mbed_official	5:b3b3370574cf	1518	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
mbed_official	5:b3b3370574cf	1519	} else {
mbed_official	5:b3b3370574cf	1520	if (a == AM_LFN) { /* An LFN entry is found */
mbed_official	5:b3b3370574cf	1521	if (dp->lfn) {
mbed_official	5:b3b3370574cf	1522	if (c & LLEF) { /* Is it start of LFN sequence? */
mbed_official	6:a5fcdbf92056	1523	sum = dir[LDIR_Chksum];
mbed_official	5:b3b3370574cf	1524	c &= ~LLEF; ord = c; /* LFN start order */
mbed_official	5:b3b3370574cf	1525	dp->lfn_idx = dp->index; /* Start index of LFN */
mbed_official	5:b3b3370574cf	1526	}
mbed_official	5:b3b3370574cf	1527	/* Check validity of the LFN entry and compare it with given name */
mbed_official	6:a5fcdbf92056	1528	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
mbed_official	5:b3b3370574cf	1529	}
mbed_official	5:b3b3370574cf	1530	} else { /* An SFN entry is found */
mbed_official	6:a5fcdbf92056	1531	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
mbed_official	6:a5fcdbf92056	1532	if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(dir, dp->fn, 11)) break; /* SFN matched? */
mbed_official	5:b3b3370574cf	1533	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
mbed_official	5:b3b3370574cf	1534	}
mbed_official	5:b3b3370574cf	1535	}
mbed_official	5:b3b3370574cf	1536	#else /* Non LFN configuration */
mbed_official	6:a5fcdbf92056	1537	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dp->fn, 11)) /* Is it a valid entry? */
mbed_official	5:b3b3370574cf	1538	break;
emilmont	1:46ce1e16c870	1539	#endif
mbed_official	5:b3b3370574cf	1540	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1541	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	1542
mbed_official	5:b3b3370574cf	1543	return res;
emilmont	1:46ce1e16c870	1544	}
emilmont	1:46ce1e16c870	1545
emilmont	1:46ce1e16c870	1546
emilmont	1:46ce1e16c870	1547
emilmont	1:46ce1e16c870	1548
emilmont	1:46ce1e16c870	1549	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1550	/* Read an object from the directory */
emilmont	1:46ce1e16c870	1551	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1552	#if _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2
emilmont	1:46ce1e16c870	1553	static
emilmont	1:46ce1e16c870	1554	FRESULT dir_read (
mbed_official	5:b3b3370574cf	1555	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1556	int vol /* Filtered by 0:file/directory or 1:volume label */
emilmont	1:46ce1e16c870	1557	)
emilmont	1:46ce1e16c870	1558	{
mbed_official	5:b3b3370574cf	1559	FRESULT res;
mbed_official	6:a5fcdbf92056	1560	BYTE a, c, *dir;
emilmont	1:46ce1e16c870	1561	#if _USE_LFN
mbed_official	5:b3b3370574cf	1562	BYTE ord = 0xFF, sum = 0xFF;
emilmont	1:46ce1e16c870	1563	#endif
emilmont	1:46ce1e16c870	1564
mbed_official	5:b3b3370574cf	1565	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	1566	while (dp->sect) {
mbed_official	5:b3b3370574cf	1567	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1568	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1569	dir = dp->dir; /* Ptr to the directory entry of current index */
mbed_official	6:a5fcdbf92056	1570	c = dir[DIR_Name];
mbed_official	5:b3b3370574cf	1571	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mbed_official	6:a5fcdbf92056	1572	a = dir[DIR_Attr] & AM_MASK;
mbed_official	5:b3b3370574cf	1573	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1574	if (c == DDEM \|\| (!_FS_RPATH && c == '.') \|\| (int)((a & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */
mbed_official	5:b3b3370574cf	1575	ord = 0xFF;
mbed_official	5:b3b3370574cf	1576	} else {
mbed_official	5:b3b3370574cf	1577	if (a == AM_LFN) { /* An LFN entry is found */
mbed_official	5:b3b3370574cf	1578	if (c & LLEF) { /* Is it start of LFN sequence? */
mbed_official	6:a5fcdbf92056	1579	sum = dir[LDIR_Chksum];
mbed_official	5:b3b3370574cf	1580	c &= ~LLEF; ord = c;
mbed_official	5:b3b3370574cf	1581	dp->lfn_idx = dp->index;
mbed_official	5:b3b3370574cf	1582	}
mbed_official	5:b3b3370574cf	1583	/* Check LFN validity and capture it */
mbed_official	6:a5fcdbf92056	1584	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
mbed_official	5:b3b3370574cf	1585	} else { /* An SFN entry is found */
mbed_official	6:a5fcdbf92056	1586	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
mbed_official	5:b3b3370574cf	1587	dp->lfn_idx = 0xFFFF; /* It has no LFN. */
mbed_official	5:b3b3370574cf	1588	break;
mbed_official	5:b3b3370574cf	1589	}
mbed_official	5:b3b3370574cf	1590	}
mbed_official	5:b3b3370574cf	1591	#else /* Non LFN configuration */
mbed_official	5:b3b3370574cf	1592	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	1593	break;
emilmont	1:46ce1e16c870	1594	#endif
mbed_official	5:b3b3370574cf	1595	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1596	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	1597	}
mbed_official	5:b3b3370574cf	1598
mbed_official	5:b3b3370574cf	1599	if (res != FR_OK) dp->sect = 0;
mbed_official	5:b3b3370574cf	1600
mbed_official	5:b3b3370574cf	1601	return res;
emilmont	1:46ce1e16c870	1602	}
mbed_official	5:b3b3370574cf	1603	#endif /* _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2 */
mbed_official	5:b3b3370574cf	1604
emilmont	1:46ce1e16c870	1605
emilmont	1:46ce1e16c870	1606
emilmont	1:46ce1e16c870	1607
emilmont	1:46ce1e16c870	1608	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1609	/* Register an object to the directory */
emilmont	1:46ce1e16c870	1610	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1611	#if !_FS_READONLY
emilmont	1:46ce1e16c870	1612	static
mbed_official	6:a5fcdbf92056	1613	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	1614	FATFS_DIR* dp /* Target directory with object name to be created */
emilmont	1:46ce1e16c870	1615	)
emilmont	1:46ce1e16c870	1616	{
mbed_official	5:b3b3370574cf	1617	FRESULT res;
mbed_official	5:b3b3370574cf	1618	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1619	UINT n, nent;
mbed_official	5:b3b3370574cf	1620	BYTE sn[12], *fn, sum;
mbed_official	5:b3b3370574cf	1621	WCHAR *lfn;
mbed_official	5:b3b3370574cf	1622
mbed_official	5:b3b3370574cf	1623
mbed_official	5:b3b3370574cf	1624	fn = dp->fn; lfn = dp->lfn;
mbed_official	5:b3b3370574cf	1625	mem_cpy(sn, fn, 12);
mbed_official	5:b3b3370574cf	1626
mbed_official	5:b3b3370574cf	1627	if (_FS_RPATH && (sn[NSFLAG] & NS_DOT)) /* Cannot create dot entry */
mbed_official	5:b3b3370574cf	1628	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1629
mbed_official	5:b3b3370574cf	1630	if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
mbed_official	5:b3b3370574cf	1631	fn[NSFLAG] = 0; dp->lfn = 0; /* Find only SFN */
mbed_official	5:b3b3370574cf	1632	for (n = 1; n < 100; n++) {
mbed_official	5:b3b3370574cf	1633	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
mbed_official	5:b3b3370574cf	1634	res = dir_find(dp); /* Check if the name collides with existing SFN */
mbed_official	5:b3b3370574cf	1635	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	1636	}
mbed_official	5:b3b3370574cf	1637	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
mbed_official	5:b3b3370574cf	1638	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
mbed_official	5:b3b3370574cf	1639	fn[NSFLAG] = sn[NSFLAG]; dp->lfn = lfn;
mbed_official	5:b3b3370574cf	1640	}
mbed_official	5:b3b3370574cf	1641
mbed_official	5:b3b3370574cf	1642	if (sn[NSFLAG] & NS_LFN) { /* When LFN is to be created, allocate entries for an SFN + LFNs. */
mbed_official	5:b3b3370574cf	1643	for (n = 0; lfn[n]; n++) ;
mbed_official	5:b3b3370574cf	1644	nent = (n + 25) / 13;
mbed_official	5:b3b3370574cf	1645	} else { /* Otherwise allocate an entry for an SFN */
mbed_official	5:b3b3370574cf	1646	nent = 1;
mbed_official	5:b3b3370574cf	1647	}
mbed_official	5:b3b3370574cf	1648	res = dir_alloc(dp, nent); /* Allocate entries */
mbed_official	5:b3b3370574cf	1649
mbed_official	5:b3b3370574cf	1650	if (res == FR_OK && --nent) { /* Set LFN entry if needed */
mbed_official	5:b3b3370574cf	1651	res = dir_sdi(dp, dp->index - nent);
mbed_official	5:b3b3370574cf	1652	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	1653	sum = sum_sfn(dp->fn); /* Checksum value of the SFN tied to the LFN */
mbed_official	5:b3b3370574cf	1654	do { /* Store LFN entries in bottom first */
mbed_official	5:b3b3370574cf	1655	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1656	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1657	fit_lfn(dp->lfn, dp->dir, (BYTE)nent, sum);
mbed_official	5:b3b3370574cf	1658	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1659	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1660	} while (res == FR_OK && --nent);
mbed_official	5:b3b3370574cf	1661	}
mbed_official	5:b3b3370574cf	1662	}
mbed_official	5:b3b3370574cf	1663	#else /* Non LFN configuration */
mbed_official	5:b3b3370574cf	1664	res = dir_alloc(dp, 1); /* Allocate an entry for SFN */
emilmont	1:46ce1e16c870	1665	#endif
emilmont	1:46ce1e16c870	1666
mbed_official	5:b3b3370574cf	1667	if (res == FR_OK) { /* Set SFN entry */
mbed_official	5:b3b3370574cf	1668	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1669	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	1670	mem_set(dp->dir, 0, SZ_DIRE); /* Clean the entry */
mbed_official	6:a5fcdbf92056	1671	mem_cpy(dp->dir, dp->fn, 11); /* Put SFN */
emilmont	1:46ce1e16c870	1672	#if _USE_LFN
mbed_official	6:a5fcdbf92056	1673	dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY \| NS_EXT); /* Put NT flag */
emilmont	1:46ce1e16c870	1674	#endif
mbed_official	5:b3b3370574cf	1675	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1676	}
mbed_official	5:b3b3370574cf	1677	}
mbed_official	5:b3b3370574cf	1678
mbed_official	5:b3b3370574cf	1679	return res;
emilmont	1:46ce1e16c870	1680	}
emilmont	1:46ce1e16c870	1681	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	1682
emilmont	1:46ce1e16c870	1683
emilmont	1:46ce1e16c870	1684
emilmont	1:46ce1e16c870	1685
emilmont	1:46ce1e16c870	1686	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1687	/* Remove an object from the directory */
emilmont	1:46ce1e16c870	1688	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1689	#if !_FS_READONLY && !_FS_MINIMIZE
emilmont	1:46ce1e16c870	1690	static
mbed_official	6:a5fcdbf92056	1691	FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */
mbed_official	5:b3b3370574cf	1692	FATFS_DIR* dp /* Directory object pointing the entry to be removed */
mbed_official	5:b3b3370574cf	1693	)
mbed_official	5:b3b3370574cf	1694	{
mbed_official	5:b3b3370574cf	1695	FRESULT res;
mbed_official	5:b3b3370574cf	1696	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1697	UINT i;
mbed_official	5:b3b3370574cf	1698
mbed_official	5:b3b3370574cf	1699	i = dp->index; /* SFN index */
mbed_official	5:b3b3370574cf	1700	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	1701	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1702	do {
mbed_official	5:b3b3370574cf	1703	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1704	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	1705	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
mbed_official	6:a5fcdbf92056	1706	*dp->dir = DDEM;
mbed_official	5:b3b3370574cf	1707	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1708	if (dp->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
mbed_official	5:b3b3370574cf	1709	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1710	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	1711	if (res == FR_NO_FILE) res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	1712	}
mbed_official	5:b3b3370574cf	1713
mbed_official	5:b3b3370574cf	1714	#else /* Non LFN configuration */
mbed_official	5:b3b3370574cf	1715	res = dir_sdi(dp, dp->index);
mbed_official	5:b3b3370574cf	1716	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1717	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1718	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	1719	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
mbed_official	6:a5fcdbf92056	1720	*dp->dir = DDEM;
mbed_official	5:b3b3370574cf	1721	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1722	}
mbed_official	5:b3b3370574cf	1723	}
mbed_official	5:b3b3370574cf	1724	#endif
mbed_official	5:b3b3370574cf	1725
mbed_official	5:b3b3370574cf	1726	return res;
mbed_official	5:b3b3370574cf	1727	}
mbed_official	5:b3b3370574cf	1728	#endif /* !_FS_READONLY */
mbed_official	5:b3b3370574cf	1729
mbed_official	5:b3b3370574cf	1730
mbed_official	5:b3b3370574cf	1731
mbed_official	5:b3b3370574cf	1732
mbed_official	5:b3b3370574cf	1733	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1734	/* Get file information from directory entry */
mbed_official	5:b3b3370574cf	1735	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1736	#if _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2
mbed_official	5:b3b3370574cf	1737	static
mbed_official	5:b3b3370574cf	1738	void get_fileinfo ( /* No return code */
mbed_official	5:b3b3370574cf	1739	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1740	FILINFO* fno /* Pointer to the file information to be filled */
emilmont	1:46ce1e16c870	1741	)
emilmont	1:46ce1e16c870	1742	{
mbed_official	5:b3b3370574cf	1743	UINT i;
mbed_official	5:b3b3370574cf	1744	TCHAR *p, c;
mbed_official	6:a5fcdbf92056	1745	BYTE *dir;
mbed_official	5:b3b3370574cf	1746	#if _USE_LFN
mbed_official	5:b3b3370574cf	1747	WCHAR w, *lfn;
mbed_official	5:b3b3370574cf	1748	#endif
mbed_official	5:b3b3370574cf	1749
mbed_official	5:b3b3370574cf	1750	p = fno->fname;
mbed_official	5:b3b3370574cf	1751	if (dp->sect) { /* Get SFN */
mbed_official	6:a5fcdbf92056	1752	dir = dp->dir;
mbed_official	5:b3b3370574cf	1753	i = 0;
mbed_official	5:b3b3370574cf	1754	while (i < 11) { /* Copy name body and extension */
mbed_official	6:a5fcdbf92056	1755	c = (TCHAR)dir[i++];
mbed_official	5:b3b3370574cf	1756	if (c == ' ') continue; /* Skip padding spaces */
mbed_official	5:b3b3370574cf	1757	if (c == RDDEM) c = (TCHAR)DDEM; /* Restore replaced DDEM character */
mbed_official	5:b3b3370574cf	1758	if (i == 9) p++ = '.'; / Insert a . if extension is exist */
mbed_official	5:b3b3370574cf	1759	#if _USE_LFN
mbed_official	6:a5fcdbf92056	1760	if (IsUpper(c) && (dir[DIR_NTres] & (i >= 9 ? NS_EXT : NS_BODY)))
mbed_official	5:b3b3370574cf	1761	c += 0x20; /* To lower */
mbed_official	5:b3b3370574cf	1762	#if _LFN_UNICODE
mbed_official	6:a5fcdbf92056	1763	if (IsDBCS1(c) && i != 8 && i != 11 && IsDBCS2(dir[i]))
mbed_official	6:a5fcdbf92056	1764	c = c << 8 \| dir[i++];
mbed_official	5:b3b3370574cf	1765	c = ff_convert(c, 1); /* OEM -> Unicode */
mbed_official	5:b3b3370574cf	1766	if (!c) c = '?';
mbed_official	5:b3b3370574cf	1767	#endif
mbed_official	5:b3b3370574cf	1768	#endif
mbed_official	5:b3b3370574cf	1769	*p++ = c;
mbed_official	5:b3b3370574cf	1770	}
mbed_official	6:a5fcdbf92056	1771	fno->fattrib = dir[DIR_Attr]; /* Attribute */
mbed_official	6:a5fcdbf92056	1772	fno->fsize = LD_DWORD(dir + DIR_FileSize); /* Size */
mbed_official	6:a5fcdbf92056	1773	fno->fdate = LD_WORD(dir + DIR_WrtDate); /* Date */
mbed_official	6:a5fcdbf92056	1774	fno->ftime = LD_WORD(dir + DIR_WrtTime); /* Time */
mbed_official	5:b3b3370574cf	1775	}
mbed_official	5:b3b3370574cf	1776	p = 0; / Terminate SFN string by a \0 */
mbed_official	5:b3b3370574cf	1777
mbed_official	5:b3b3370574cf	1778	#if _USE_LFN
mbed_official	5:b3b3370574cf	1779	if (fno->lfname) {
mbed_official	5:b3b3370574cf	1780	i = 0; p = fno->lfname;
mbed_official	5:b3b3370574cf	1781	if (dp->sect && fno->lfsize && dp->lfn_idx != 0xFFFF) { /* Get LFN if available */
mbed_official	5:b3b3370574cf	1782	lfn = dp->lfn;
mbed_official	5:b3b3370574cf	1783	while ((w = lfn++) != 0) { / Get an LFN character */
mbed_official	5:b3b3370574cf	1784	#if !_LFN_UNICODE
mbed_official	5:b3b3370574cf	1785	w = ff_convert(w, 0); /* Unicode -> OEM */
mbed_official	5:b3b3370574cf	1786	if (!w) { i = 0; break; } /* No LFN if it could not be converted */
mbed_official	5:b3b3370574cf	1787	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
mbed_official	5:b3b3370574cf	1788	p[i++] = (TCHAR)(w >> 8);
mbed_official	5:b3b3370574cf	1789	#endif
mbed_official	5:b3b3370574cf	1790	if (i >= fno->lfsize - 1) { i = 0; break; } /* No LFN if buffer overflow */
mbed_official	5:b3b3370574cf	1791	p[i++] = (TCHAR)w;
mbed_official	5:b3b3370574cf	1792	}
mbed_official	5:b3b3370574cf	1793	}
mbed_official	5:b3b3370574cf	1794	p[i] = 0; /* Terminate LFN string by a \0 */
mbed_official	5:b3b3370574cf	1795	}
emilmont	1:46ce1e16c870	1796	#endif
mbed_official	5:b3b3370574cf	1797	}
mbed_official	5:b3b3370574cf	1798	#endif /* _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2 */
mbed_official	5:b3b3370574cf	1799
mbed_official	5:b3b3370574cf	1800
mbed_official	5:b3b3370574cf	1801
mbed_official	5:b3b3370574cf	1802
mbed_official	5:b3b3370574cf	1803	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1804	/* Pattern matching */
mbed_official	5:b3b3370574cf	1805	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1806	#if _USE_FIND && _FS_MINIMIZE <= 1
mbed_official	5:b3b3370574cf	1807	static
mbed_official	5:b3b3370574cf	1808	WCHAR get_achar ( /* Get a character and advances ptr 1 or 2 */
mbed_official	5:b3b3370574cf	1809	const TCHAR** ptr /* Pointer to pointer to the SBCS/DBCS/Unicode string */
mbed_official	5:b3b3370574cf	1810	)
mbed_official	5:b3b3370574cf	1811	{
mbed_official	5:b3b3370574cf	1812	WCHAR chr;
mbed_official	5:b3b3370574cf	1813
mbed_official	5:b3b3370574cf	1814	#if !_LFN_UNICODE
mbed_official	5:b3b3370574cf	1815	chr = (BYTE)(ptr)++; /* Get a byte */
mbed_official	5:b3b3370574cf	1816	if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */
mbed_official	5:b3b3370574cf	1817	if (IsDBCS1(chr) && IsDBCS2(*ptr)) / Get DBC 2nd byte if needed */
mbed_official	5:b3b3370574cf	1818	chr = chr << 8 \| (BYTE)(ptr)++;
mbed_official	5:b3b3370574cf	1819	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	1820	if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */
mbed_official	5:b3b3370574cf	1821	#endif
mbed_official	5:b3b3370574cf	1822	#else
mbed_official	5:b3b3370574cf	1823	chr = ff_wtoupper((ptr)++); /* Get a word and to upper */
mbed_official	5:b3b3370574cf	1824	#endif
mbed_official	5:b3b3370574cf	1825	return chr;
emilmont	1:46ce1e16c870	1826	}
mbed_official	5:b3b3370574cf	1827
mbed_official	5:b3b3370574cf	1828
mbed_official	5:b3b3370574cf	1829	static
mbed_official	6:a5fcdbf92056	1830	int pattern_matching ( /* 0:mismatched, 1:matched */
mbed_official	5:b3b3370574cf	1831	const TCHAR* pat, /* Matching pattern */
mbed_official	5:b3b3370574cf	1832	const TCHAR* nam, /* String to be tested */
mbed_official	5:b3b3370574cf	1833	int skip, /* Number of pre-skip chars (number of ?s) */
mbed_official	5:b3b3370574cf	1834	int inf /* Infinite search (* specified) */
mbed_official	5:b3b3370574cf	1835	)
mbed_official	5:b3b3370574cf	1836	{
mbed_official	5:b3b3370574cf	1837	const TCHAR pp, np;
mbed_official	5:b3b3370574cf	1838	WCHAR pc, nc;
mbed_official	5:b3b3370574cf	1839	int nm, nx;
mbed_official	5:b3b3370574cf	1840
mbed_official	5:b3b3370574cf	1841
mbed_official	5:b3b3370574cf	1842	while (skip--) { /* Pre-skip name chars */
mbed_official	5:b3b3370574cf	1843	if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */
mbed_official	5:b3b3370574cf	1844	}
mbed_official	5:b3b3370574cf	1845	if (!pat && inf) return 1; / (short circuit) */
mbed_official	5:b3b3370574cf	1846
mbed_official	5:b3b3370574cf	1847	do {
mbed_official	5:b3b3370574cf	1848	pp = pat; np = nam; /* Top of pattern and name to match */
mbed_official	5:b3b3370574cf	1849	for (;;) {
mbed_official	5:b3b3370574cf	1850	if (pp == '?' \|\| pp == '') { / Wildcard? */
mbed_official	5:b3b3370574cf	1851	nm = nx = 0;
mbed_official	5:b3b3370574cf	1852	do { /* Analyze the wildcard chars */
mbed_official	5:b3b3370574cf	1853	if (*pp++ == '?') nm++; else nx = 1;
mbed_official	5:b3b3370574cf	1854	} while (pp == '?' \|\| pp == '*');
mbed_official	5:b3b3370574cf	1855	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	1856	nc = np; break; / Branch mismatched */
mbed_official	5:b3b3370574cf	1857	}
mbed_official	5:b3b3370574cf	1858	pc = get_achar(&pp); /* Get a pattern char */
mbed_official	5:b3b3370574cf	1859	nc = get_achar(&np); /* Get a name char */
mbed_official	5:b3b3370574cf	1860	if (pc != nc) break; /* Branch mismatched? */
mbed_official	5:b3b3370574cf	1861	if (!pc) return 1; /* Branch matched? (matched at end of both strings) */
mbed_official	5:b3b3370574cf	1862	}
mbed_official	5:b3b3370574cf	1863	get_achar(&nam); /* nam++ */
mbed_official	5:b3b3370574cf	1864	} while (inf && nc); /* Retry until end of name if infinite search is specified */
mbed_official	5:b3b3370574cf	1865
mbed_official	5:b3b3370574cf	1866	return 0;
mbed_official	5:b3b3370574cf	1867	}
mbed_official	5:b3b3370574cf	1868	#endif /* _USE_FIND && _FS_MINIMIZE <= 1 */
emilmont	1:46ce1e16c870	1869
emilmont	1:46ce1e16c870	1870
emilmont	1:46ce1e16c870	1871
emilmont	1:46ce1e16c870	1872
emilmont	1:46ce1e16c870	1873	/-----------------------------------------------------------------------/
mbed_official	6:a5fcdbf92056	1874	/* Pick a top segment and create the object name in directory form */
emilmont	1:46ce1e16c870	1875	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1876
emilmont	1:46ce1e16c870	1877	static
mbed_official	6:a5fcdbf92056	1878	FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */
mbed_official	5:b3b3370574cf	1879	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1880	const TCHAR** path /* Pointer to pointer to the segment in the path string */
emilmont	1:46ce1e16c870	1881	)
emilmont	1:46ce1e16c870	1882	{
mbed_official	5:b3b3370574cf	1883	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1884	BYTE b, cf;
mbed_official	5:b3b3370574cf	1885	WCHAR w, *lfn;
mbed_official	5:b3b3370574cf	1886	UINT i, ni, si, di;
mbed_official	5:b3b3370574cf	1887	const TCHAR *p;
mbed_official	5:b3b3370574cf	1888
mbed_official	5:b3b3370574cf	1889	/* Create LFN in Unicode */
mbed_official	5:b3b3370574cf	1890	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
mbed_official	5:b3b3370574cf	1891	lfn = dp->lfn;
mbed_official	5:b3b3370574cf	1892	si = di = 0;
mbed_official	5:b3b3370574cf	1893	for (;;) {
mbed_official	5:b3b3370574cf	1894	w = p[si++]; /* Get a character */
mbed_official	5:b3b3370574cf	1895	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
mbed_official	5:b3b3370574cf	1896	if (di >= _MAX_LFN) /* Reject too long name */
mbed_official	5:b3b3370574cf	1897	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1898	#if !_LFN_UNICODE
mbed_official	5:b3b3370574cf	1899	w &= 0xFF;
mbed_official	5:b3b3370574cf	1900	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
mbed_official	5:b3b3370574cf	1901	b = (BYTE)p[si++]; /* Get 2nd byte */
mbed_official	5:b3b3370574cf	1902	w = (w << 8) + b; /* Create a DBC */
mbed_official	5:b3b3370574cf	1903	if (!IsDBCS2(b))
mbed_official	5:b3b3370574cf	1904	return FR_INVALID_NAME; /* Reject invalid sequence */
mbed_official	5:b3b3370574cf	1905	}
mbed_official	5:b3b3370574cf	1906	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
mbed_official	5:b3b3370574cf	1907	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
emilmont	1:46ce1e16c870	1908	#endif
mbed_official	5:b3b3370574cf	1909	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal characters for LFN */
mbed_official	5:b3b3370574cf	1910	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1911	lfn[di++] = w; /* Store the Unicode character */
mbed_official	5:b3b3370574cf	1912	}
mbed_official	5:b3b3370574cf	1913	path = &p[si]; / Return pointer to the next segment */
mbed_official	5:b3b3370574cf	1914	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
emilmont	1:46ce1e16c870	1915	#if _FS_RPATH
mbed_official	6:a5fcdbf92056	1916	if ((di == 1 && lfn[di - 1] == '.') \|\|
mbed_official	6:a5fcdbf92056	1917	(di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot entry? */
mbed_official	5:b3b3370574cf	1918	lfn[di] = 0;
mbed_official	6:a5fcdbf92056	1919	for (i = 0; i < 11; i++) /* Create dot name for SFN entry */
mbed_official	5:b3b3370574cf	1920	dp->fn[i] = (i < di) ? '.' : ' ';
mbed_official	5:b3b3370574cf	1921	dp->fn[i] = cf \| NS_DOT; /* This is a dot entry */
mbed_official	5:b3b3370574cf	1922	return FR_OK;
mbed_official	5:b3b3370574cf	1923	}
emilmont	1:46ce1e16c870	1924	#endif
mbed_official	6:a5fcdbf92056	1925	while (di) { /* Snip off trailing spaces and dots if exist */
mbed_official	5:b3b3370574cf	1926	w = lfn[di - 1];
mbed_official	5:b3b3370574cf	1927	if (w != ' ' && w != '.') break;
mbed_official	5:b3b3370574cf	1928	di--;
mbed_official	5:b3b3370574cf	1929	}
mbed_official	5:b3b3370574cf	1930	if (!di) return FR_INVALID_NAME; /* Reject nul string */
mbed_official	5:b3b3370574cf	1931	lfn[di] = 0; /* LFN is created */
mbed_official	5:b3b3370574cf	1932
mbed_official	5:b3b3370574cf	1933	/* Create SFN in directory form */
mbed_official	5:b3b3370574cf	1934	mem_set(dp->fn, ' ', 11);
mbed_official	5:b3b3370574cf	1935	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
mbed_official	5:b3b3370574cf	1936	if (si) cf \|= NS_LOSS \| NS_LFN;
mbed_official	5:b3b3370574cf	1937	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
mbed_official	5:b3b3370574cf	1938
mbed_official	5:b3b3370574cf	1939	b = i = 0; ni = 8;
mbed_official	5:b3b3370574cf	1940	for (;;) {
mbed_official	5:b3b3370574cf	1941	w = lfn[si++]; /* Get an LFN character */
mbed_official	5:b3b3370574cf	1942	if (!w) break; /* Break on end of the LFN */
mbed_official	5:b3b3370574cf	1943	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
mbed_official	5:b3b3370574cf	1944	cf \|= NS_LOSS \| NS_LFN; continue;
mbed_official	5:b3b3370574cf	1945	}
mbed_official	5:b3b3370574cf	1946
mbed_official	5:b3b3370574cf	1947	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
mbed_official	5:b3b3370574cf	1948	if (ni == 11) { /* Long extension */
mbed_official	5:b3b3370574cf	1949	cf \|= NS_LOSS \| NS_LFN; break;
mbed_official	5:b3b3370574cf	1950	}
mbed_official	5:b3b3370574cf	1951	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
mbed_official	5:b3b3370574cf	1952	if (si > di) break; /* No extension */
mbed_official	5:b3b3370574cf	1953	si = di; i = 8; ni = 11; /* Enter extension section */
mbed_official	5:b3b3370574cf	1954	b <<= 2; continue;
mbed_official	5:b3b3370574cf	1955	}
mbed_official	5:b3b3370574cf	1956
mbed_official	5:b3b3370574cf	1957	if (w >= 0x80) { /* Non ASCII character */
emilmont	1:46ce1e16c870	1958	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	1959	w = ff_convert(w, 0); /* Unicode -> OEM code */
mbed_official	5:b3b3370574cf	1960	if (w) w = ExCvt[w - 0x80]; /* Convert extended character to upper (SBCS) */
emilmont	1:46ce1e16c870	1961	#else
mbed_official	5:b3b3370574cf	1962	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
emilmont	1:46ce1e16c870	1963	#endif
mbed_official	5:b3b3370574cf	1964	cf \|= NS_LFN; /* Force create LFN entry */
mbed_official	5:b3b3370574cf	1965	}
mbed_official	5:b3b3370574cf	1966
mbed_official	6:a5fcdbf92056	1967	if (_DF1S && w >= 0x100) { /* Is this DBC? (always false at SBCS cfg) */
mbed_official	5:b3b3370574cf	1968	if (i >= ni - 1) {
mbed_official	5:b3b3370574cf	1969	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
mbed_official	5:b3b3370574cf	1970	}
mbed_official	5:b3b3370574cf	1971	dp->fn[i++] = (BYTE)(w >> 8);
mbed_official	5:b3b3370574cf	1972	} else { /* SBC */
mbed_official	5:b3b3370574cf	1973	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal characters for SFN */
mbed_official	5:b3b3370574cf	1974	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
mbed_official	5:b3b3370574cf	1975	} else {
mbed_official	5:b3b3370574cf	1976	if (IsUpper(w)) { /* ASCII large capital */
mbed_official	5:b3b3370574cf	1977	b \|= 2;
mbed_official	5:b3b3370574cf	1978	} else {
mbed_official	5:b3b3370574cf	1979	if (IsLower(w)) { /* ASCII small capital */
mbed_official	5:b3b3370574cf	1980	b \|= 1; w -= 0x20;
mbed_official	5:b3b3370574cf	1981	}
mbed_official	5:b3b3370574cf	1982	}
mbed_official	5:b3b3370574cf	1983	}
mbed_official	5:b3b3370574cf	1984	}
mbed_official	5:b3b3370574cf	1985	dp->fn[i++] = (BYTE)w;
mbed_official	5:b3b3370574cf	1986	}
mbed_official	5:b3b3370574cf	1987
mbed_official	6:a5fcdbf92056	1988	if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */
mbed_official	5:b3b3370574cf	1989
mbed_official	5:b3b3370574cf	1990	if (ni == 8) b <<= 2;
mbed_official	5:b3b3370574cf	1991	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
mbed_official	5:b3b3370574cf	1992	cf \|= NS_LFN;
mbed_official	5:b3b3370574cf	1993	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */
mbed_official	5:b3b3370574cf	1994	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
mbed_official	5:b3b3370574cf	1995	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
mbed_official	5:b3b3370574cf	1996	}
mbed_official	5:b3b3370574cf	1997
mbed_official	5:b3b3370574cf	1998	dp->fn[NSFLAG] = cf; /* SFN is created */
mbed_official	5:b3b3370574cf	1999
mbed_official	5:b3b3370574cf	2000	return FR_OK;
mbed_official	5:b3b3370574cf	2001
mbed_official	5:b3b3370574cf	2002
mbed_official	5:b3b3370574cf	2003	#else /* Non-LFN configuration */
mbed_official	5:b3b3370574cf	2004	BYTE b, c, d, *sfn;
mbed_official	5:b3b3370574cf	2005	UINT ni, si, i;
mbed_official	5:b3b3370574cf	2006	const char *p;
mbed_official	5:b3b3370574cf	2007
mbed_official	5:b3b3370574cf	2008	/* Create file name in directory form */
mbed_official	6:a5fcdbf92056	2009	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Skip duplicated separator */
mbed_official	5:b3b3370574cf	2010	sfn = dp->fn;
mbed_official	5:b3b3370574cf	2011	mem_set(sfn, ' ', 11);
mbed_official	5:b3b3370574cf	2012	si = i = b = 0; ni = 8;
emilmont	1:46ce1e16c870	2013	#if _FS_RPATH
mbed_official	5:b3b3370574cf	2014	if (p[si] == '.') { /* Is this a dot entry? */
mbed_official	5:b3b3370574cf	2015	for (;;) {
mbed_official	5:b3b3370574cf	2016	c = (BYTE)p[si++];
mbed_official	5:b3b3370574cf	2017	if (c != '.' \|\| si >= 3) break;
mbed_official	5:b3b3370574cf	2018	sfn[i++] = c;
mbed_official	5:b3b3370574cf	2019	}
mbed_official	5:b3b3370574cf	2020	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	2021	path = &p[si]; / Return pointer to the next segment */
mbed_official	5:b3b3370574cf	2022	sfn[NSFLAG] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
mbed_official	5:b3b3370574cf	2023	return FR_OK;
mbed_official	5:b3b3370574cf	2024	}
emilmont	1:46ce1e16c870	2025	#endif
mbed_official	5:b3b3370574cf	2026	for (;;) {
mbed_official	5:b3b3370574cf	2027	c = (BYTE)p[si++];
mbed_official	5:b3b3370574cf	2028	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
mbed_official	5:b3b3370574cf	2029	if (c == '.' \|\| i >= ni) {
mbed_official	5:b3b3370574cf	2030	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	2031	i = 8; ni = 11;
mbed_official	5:b3b3370574cf	2032	b <<= 2; continue;
mbed_official	5:b3b3370574cf	2033	}
mbed_official	5:b3b3370574cf	2034	if (c >= 0x80) { /* Extended character? */
mbed_official	5:b3b3370574cf	2035	b \|= 3; /* Eliminate NT flag */
emilmont	1:46ce1e16c870	2036	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	2037	c = ExCvt[c - 0x80]; /* To upper extended characters (SBCS cfg) */
emilmont	1:46ce1e16c870	2038	#else
mbed_official	5:b3b3370574cf	2039	#if !_DF1S
mbed_official	5:b3b3370574cf	2040	return FR_INVALID_NAME; /* Reject extended characters (ASCII cfg) */
emilmont	1:46ce1e16c870	2041	#endif
emilmont	1:46ce1e16c870	2042	#endif
mbed_official	5:b3b3370574cf	2043	}
mbed_official	6:a5fcdbf92056	2044	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false at SBCS cfg.) */
mbed_official	5:b3b3370574cf	2045	d = (BYTE)p[si++]; /* Get 2nd byte */
mbed_official	5:b3b3370574cf	2046	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
mbed_official	5:b3b3370574cf	2047	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	2048	sfn[i++] = c;
mbed_official	5:b3b3370574cf	2049	sfn[i++] = d;
mbed_official	5:b3b3370574cf	2050	} else { /* SBC */
mbed_official	5:b3b3370574cf	2051	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
mbed_official	5:b3b3370574cf	2052	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	2053	if (IsUpper(c)) { /* ASCII large capital? */
mbed_official	5:b3b3370574cf	2054	b \|= 2;
mbed_official	5:b3b3370574cf	2055	} else {
mbed_official	5:b3b3370574cf	2056	if (IsLower(c)) { /* ASCII small capital? */
mbed_official	5:b3b3370574cf	2057	b \|= 1; c -= 0x20;
mbed_official	5:b3b3370574cf	2058	}
mbed_official	5:b3b3370574cf	2059	}
mbed_official	5:b3b3370574cf	2060	sfn[i++] = c;
mbed_official	5:b3b3370574cf	2061	}
mbed_official	5:b3b3370574cf	2062	}
mbed_official	5:b3b3370574cf	2063	path = &p[si]; / Return pointer to the next segment */
mbed_official	5:b3b3370574cf	2064	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
mbed_official	5:b3b3370574cf	2065
mbed_official	5:b3b3370574cf	2066	if (!i) return FR_INVALID_NAME; /* Reject nul string */
mbed_official	5:b3b3370574cf	2067	if (sfn[0] == DDEM) sfn[0] = RDDEM; /* When first character collides with DDEM, replace it with RDDEM */
mbed_official	5:b3b3370574cf	2068
mbed_official	5:b3b3370574cf	2069	if (ni == 8) b <<= 2;
mbed_official	5:b3b3370574cf	2070	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
mbed_official	5:b3b3370574cf	2071	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
mbed_official	5:b3b3370574cf	2072
mbed_official	5:b3b3370574cf	2073	sfn[NSFLAG] = c; /* Store NT flag, File name is created */
mbed_official	5:b3b3370574cf	2074
mbed_official	5:b3b3370574cf	2075	return FR_OK;
emilmont	1:46ce1e16c870	2076	#endif
emilmont	1:46ce1e16c870	2077	}
emilmont	1:46ce1e16c870	2078
emilmont	1:46ce1e16c870	2079
emilmont	1:46ce1e16c870	2080
emilmont	1:46ce1e16c870	2081
emilmont	1:46ce1e16c870	2082	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2083	/* Follow a file path */
emilmont	1:46ce1e16c870	2084	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2085
emilmont	1:46ce1e16c870	2086	static
mbed_official	5:b3b3370574cf	2087	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
mbed_official	5:b3b3370574cf	2088	FATFS_DIR* dp, /* Directory object to return last directory and found object */
mbed_official	5:b3b3370574cf	2089	const TCHAR* path /* Full-path string to find a file or directory */
emilmont	1:46ce1e16c870	2090	)
emilmont	1:46ce1e16c870	2091	{
mbed_official	5:b3b3370574cf	2092	FRESULT res;
mbed_official	6:a5fcdbf92056	2093	BYTE *dir, ns;
emilmont	1:46ce1e16c870	2094
emilmont	1:46ce1e16c870	2095
emilmont	1:46ce1e16c870	2096	#if _FS_RPATH
mbed_official	5:b3b3370574cf	2097	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
mbed_official	5:b3b3370574cf	2098	path++; dp->sclust = 0; /* Strip it and start from the root directory */
mbed_official	5:b3b3370574cf	2099	} else { /* No heading separator */
mbed_official	5:b3b3370574cf	2100	dp->sclust = dp->fs->cdir; /* Start from the current directory */
mbed_official	5:b3b3370574cf	2101	}
emilmont	1:46ce1e16c870	2102	#else
mbed_official	5:b3b3370574cf	2103	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
mbed_official	5:b3b3370574cf	2104	path++;
mbed_official	5:b3b3370574cf	2105	dp->sclust = 0; /* Always start from the root directory */
emilmont	1:46ce1e16c870	2106	#endif
emilmont	1:46ce1e16c870	2107
mbed_official	5:b3b3370574cf	2108	if ((UINT)path < ' ') { / Null path name is the origin directory itself */
mbed_official	5:b3b3370574cf	2109	res = dir_sdi(dp, 0);
mbed_official	6:a5fcdbf92056	2110	dp->dir = 0;
mbed_official	5:b3b3370574cf	2111	} else { /* Follow path */
mbed_official	5:b3b3370574cf	2112	for (;;) {
mbed_official	5:b3b3370574cf	2113	res = create_name(dp, &path); /* Get a segment name of the path */
mbed_official	5:b3b3370574cf	2114	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	2115	res = dir_find(dp); /* Find an object with the sagment name */
mbed_official	5:b3b3370574cf	2116	ns = dp->fn[NSFLAG];
mbed_official	5:b3b3370574cf	2117	if (res != FR_OK) { /* Failed to find the object */
mbed_official	5:b3b3370574cf	2118	if (res == FR_NO_FILE) { /* Object is not found */
mbed_official	5:b3b3370574cf	2119	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, */
mbed_official	6:a5fcdbf92056	2120	dp->sclust = 0; dp->dir = 0; /* it is the root directory and stay there */
mbed_official	5:b3b3370574cf	2121	if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */
mbed_official	5:b3b3370574cf	2122	res = FR_OK; /* Ended at the root directroy. Function completed. */
mbed_official	5:b3b3370574cf	2123	} else { /* Could not find the object */
mbed_official	5:b3b3370574cf	2124	if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */
mbed_official	5:b3b3370574cf	2125	}
mbed_official	5:b3b3370574cf	2126	}
mbed_official	5:b3b3370574cf	2127	break;
mbed_official	5:b3b3370574cf	2128	}
mbed_official	5:b3b3370574cf	2129	if (ns & NS_LAST) break; /* Last segment matched. Function completed. */
mbed_official	6:a5fcdbf92056	2130	dir = dp->dir; /* Follow the sub-directory */
mbed_official	6:a5fcdbf92056	2131	if (!(dir[DIR_Attr] & AM_DIR)) { /* It is not a sub-directory and cannot follow */
mbed_official	5:b3b3370574cf	2132	res = FR_NO_PATH; break;
mbed_official	5:b3b3370574cf	2133	}
mbed_official	6:a5fcdbf92056	2134	dp->sclust = ld_clust(dp->fs, dir);
mbed_official	5:b3b3370574cf	2135	}
mbed_official	5:b3b3370574cf	2136	}
mbed_official	5:b3b3370574cf	2137
mbed_official	5:b3b3370574cf	2138	return res;
emilmont	1:46ce1e16c870	2139	}
emilmont	1:46ce1e16c870	2140
emilmont	1:46ce1e16c870	2141
emilmont	1:46ce1e16c870	2142
emilmont	1:46ce1e16c870	2143
emilmont	1:46ce1e16c870	2144	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2145	/* Get logical drive number from path name */
emilmont	1:46ce1e16c870	2146	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2147
emilmont	1:46ce1e16c870	2148	static
mbed_official	5:b3b3370574cf	2149	int get_ldnumber ( /* Returns logical drive number (-1:invalid drive) */
mbed_official	5:b3b3370574cf	2150	const TCHAR** path /* Pointer to pointer to the path name */
emilmont	1:46ce1e16c870	2151	)
emilmont	1:46ce1e16c870	2152	{
mbed_official	5:b3b3370574cf	2153	const TCHAR tp, tt;
mbed_official	5:b3b3370574cf	2154	UINT i;
mbed_official	5:b3b3370574cf	2155	int vol = -1;
mbed_official	5:b3b3370574cf	2156	#if _STR_VOLUME_ID /* Find string drive id */
mbed_official	5:b3b3370574cf	2157	static const char* const str[] = {_VOLUME_STRS};
mbed_official	5:b3b3370574cf	2158	const char *sp;
mbed_official	5:b3b3370574cf	2159	char c;
mbed_official	5:b3b3370574cf	2160	TCHAR tc;
mbed_official	5:b3b3370574cf	2161	#endif
mbed_official	5:b3b3370574cf	2162
WiredHome	8:f08059355141	2163	INFO("get_ldnumber(%s)", *path);
mbed_official	5:b3b3370574cf	2164	if (path) { / If the pointer is not a null */
mbed_official	5:b3b3370574cf	2165	for (tt = path; (UINT)tt >= (_USE_LFN ? ' ' : '!') && tt != ':'; tt++) ; / Find ':' in the path */
mbed_official	5:b3b3370574cf	2166	if (tt == ':') { / If a ':' is exist in the path name */
mbed_official	5:b3b3370574cf	2167	tp = *path;
mbed_official	5:b3b3370574cf	2168	i = *tp++ - '0';
mbed_official	5:b3b3370574cf	2169	if (i < 10 && tp == tt) { /* Is there a numeric drive id? */
mbed_official	5:b3b3370574cf	2170	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
mbed_official	5:b3b3370574cf	2171	vol = (int)i;
mbed_official	5:b3b3370574cf	2172	*path = ++tt;
mbed_official	5:b3b3370574cf	2173	}
mbed_official	5:b3b3370574cf	2174	}
mbed_official	5:b3b3370574cf	2175	#if _STR_VOLUME_ID
WiredHome	8:f08059355141	2176	else { /* No numeric drive number, find string drive id */
mbed_official	5:b3b3370574cf	2177	i = 0; tt++;
mbed_official	5:b3b3370574cf	2178	do {
mbed_official	5:b3b3370574cf	2179	sp = str[i]; tp = *path;
mbed_official	5:b3b3370574cf	2180	do { /* Compare a string drive id with path name */
mbed_official	5:b3b3370574cf	2181	c = sp++; tc = tp++;
mbed_official	5:b3b3370574cf	2182	if (IsLower(tc)) tc -= 0x20;
mbed_official	5:b3b3370574cf	2183	} while (c && (TCHAR)c == tc);
mbed_official	5:b3b3370574cf	2184	} while ((c \|\| tp != tt) && ++i < _VOLUMES); /* Repeat for each id until pattern match */
mbed_official	5:b3b3370574cf	2185	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
mbed_official	5:b3b3370574cf	2186	vol = (int)i;
mbed_official	5:b3b3370574cf	2187	*path = tt;
mbed_official	5:b3b3370574cf	2188	}
mbed_official	5:b3b3370574cf	2189	}
mbed_official	5:b3b3370574cf	2190	#endif
WiredHome	8:f08059355141	2191	INFO(" ret: %d", vol);
mbed_official	5:b3b3370574cf	2192	return vol;
mbed_official	5:b3b3370574cf	2193	}
mbed_official	5:b3b3370574cf	2194	#if _FS_RPATH && _VOLUMES >= 2
WiredHome	8:f08059355141	2195	INFO(" CurrVol: %d", CurrVol);
mbed_official	5:b3b3370574cf	2196	vol = CurrVol; /* Current drive */
mbed_official	5:b3b3370574cf	2197	#else
mbed_official	5:b3b3370574cf	2198	vol = 0; /* Drive 0 */
mbed_official	5:b3b3370574cf	2199	#endif
mbed_official	5:b3b3370574cf	2200	}
WiredHome	8:f08059355141	2201	INFO(" ret: %d", vol);
mbed_official	5:b3b3370574cf	2202	return vol;
mbed_official	5:b3b3370574cf	2203	}
mbed_official	5:b3b3370574cf	2204
mbed_official	5:b3b3370574cf	2205
mbed_official	5:b3b3370574cf	2206
mbed_official	5:b3b3370574cf	2207
mbed_official	5:b3b3370574cf	2208	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2209	/* Load a sector and check if it is an FAT boot sector */
mbed_official	5:b3b3370574cf	2210	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2211
mbed_official	5:b3b3370574cf	2212	static
mbed_official	6:a5fcdbf92056	2213	BYTE check_fs ( /* 0:Valid FAT-BS, 1:Valid BS but not FAT, 2:Not a BS, 3:Disk error */
mbed_official	5:b3b3370574cf	2214	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	2215	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
mbed_official	5:b3b3370574cf	2216	)
mbed_official	5:b3b3370574cf	2217	{
mbed_official	5:b3b3370574cf	2218	fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */
mbed_official	5:b3b3370574cf	2219	if (move_window(fs, sect) != FR_OK) /* Load boot record */
mbed_official	5:b3b3370574cf	2220	return 3;
mbed_official	5:b3b3370574cf	2221
mbed_official	5:b3b3370574cf	2222	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	2223	return 2;
mbed_official	5:b3b3370574cf	2224
mbed_official	5:b3b3370574cf	2225	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
mbed_official	5:b3b3370574cf	2226	return 0;
mbed_official	5:b3b3370574cf	2227	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
mbed_official	5:b3b3370574cf	2228	return 0;
mbed_official	5:b3b3370574cf	2229
mbed_official	5:b3b3370574cf	2230	return 1;
emilmont	1:46ce1e16c870	2231	}
emilmont	1:46ce1e16c870	2232
emilmont	1:46ce1e16c870	2233
emilmont	1:46ce1e16c870	2234
emilmont	1:46ce1e16c870	2235
emilmont	1:46ce1e16c870	2236	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2237	/* Find logical drive and check if the volume is mounted */
emilmont	1:46ce1e16c870	2238	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2239
emilmont	1:46ce1e16c870	2240	static
mbed_official	5:b3b3370574cf	2241	FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */
mbed_official	5:b3b3370574cf	2242	FATFS** rfs, /* Pointer to pointer to the found file system object */
mbed_official	5:b3b3370574cf	2243	const TCHAR** path, /* Pointer to pointer to the path name (drive number) */
mbed_official	5:b3b3370574cf	2244	BYTE wmode /* !=0: Check write protection for write access */
emilmont	1:46ce1e16c870	2245	)
emilmont	1:46ce1e16c870	2246	{
mbed_official	5:b3b3370574cf	2247	BYTE fmt, *pt;
mbed_official	5:b3b3370574cf	2248	int vol;
mbed_official	5:b3b3370574cf	2249	DSTATUS stat;
mbed_official	5:b3b3370574cf	2250	DWORD bsect, fasize, tsect, sysect, nclst, szbfat, br[4];
mbed_official	5:b3b3370574cf	2251	WORD nrsv;
mbed_official	5:b3b3370574cf	2252	FATFS *fs;
mbed_official	5:b3b3370574cf	2253	UINT i;
mbed_official	5:b3b3370574cf	2254
WiredHome	8:f08059355141	2255	INFO("find_volume(%p,%s,%02X)", rfs, path, wmode);
mbed_official	5:b3b3370574cf	2256	/* Get logical drive number from the path name */
mbed_official	5:b3b3370574cf	2257	*rfs = 0;
mbed_official	5:b3b3370574cf	2258	vol = get_ldnumber(path);
WiredHome	8:f08059355141	2259	INFO(" vol = %d", vol);
mbed_official	5:b3b3370574cf	2260	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	2261
mbed_official	5:b3b3370574cf	2262	/* Check if the file system object is valid or not */
mbed_official	5:b3b3370574cf	2263	fs = FatFs[vol]; /* Get pointer to the file system object */
WiredHome	8:f08059355141	2264	INFO("FatFs[%d] = %p", vol, fs);
mbed_official	5:b3b3370574cf	2265	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
mbed_official	5:b3b3370574cf	2266
mbed_official	5:b3b3370574cf	2267	ENTER_FF(fs); /* Lock the volume */
mbed_official	5:b3b3370574cf	2268	rfs = fs; / Return pointer to the file system object */
mbed_official	5:b3b3370574cf	2269
mbed_official	5:b3b3370574cf	2270	if (fs->fs_type) { /* If the volume has been mounted */
mbed_official	5:b3b3370574cf	2271	stat = disk_status(fs->drv);
mbed_official	5:b3b3370574cf	2272	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */
mbed_official	5:b3b3370574cf	2273	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
mbed_official	5:b3b3370574cf	2274	return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	2275	return FR_OK; /* The file system object is valid */
mbed_official	5:b3b3370574cf	2276	}
mbed_official	5:b3b3370574cf	2277	}
mbed_official	5:b3b3370574cf	2278
mbed_official	5:b3b3370574cf	2279	/* The file system object is not valid. */
mbed_official	5:b3b3370574cf	2280	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
mbed_official	5:b3b3370574cf	2281
mbed_official	5:b3b3370574cf	2282	fs->fs_type = 0; /* Clear the file system object */
mbed_official	5:b3b3370574cf	2283	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
mbed_official	5:b3b3370574cf	2284	stat = disk_initialize(fs->drv); /* Initialize the physical drive */
mbed_official	5:b3b3370574cf	2285	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
mbed_official	5:b3b3370574cf	2286	return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
mbed_official	5:b3b3370574cf	2287	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
mbed_official	5:b3b3370574cf	2288	return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	2289	#if _MAX_SS != _MIN_SS /* Get sector size (multiple sector size cfg only) */
mbed_official	5:b3b3370574cf	2290	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
mbed_official	5:b3b3370574cf	2291	\|\| SS(fs) < _MIN_SS \|\| SS(fs) > _MAX_SS) return FR_DISK_ERR;
emilmont	1:46ce1e16c870	2292	#endif
mbed_official	5:b3b3370574cf	2293	/* Find an FAT partition on the drive. Supports only generic partitioning, FDISK and SFD. */
mbed_official	5:b3b3370574cf	2294	bsect = 0;
mbed_official	5:b3b3370574cf	2295	fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT boot sector as SFD */
mbed_official	5:b3b3370574cf	2296	if (fmt == 1 \|\| (!fmt && (LD2PT(vol)))) { /* Not an FAT boot sector or forced partition number */
mbed_official	5:b3b3370574cf	2297	for (i = 0; i < 4; i++) { /* Get partition offset */
mbed_official	5:b3b3370574cf	2298	pt = fs->win + MBR_Table + i * SZ_PTE;
mbed_official	5:b3b3370574cf	2299	br[i] = pt[4] ? LD_DWORD(&pt[8]) : 0;
mbed_official	5:b3b3370574cf	2300	}
mbed_official	5:b3b3370574cf	2301	i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */
mbed_official	5:b3b3370574cf	2302	if (i) i--;
mbed_official	5:b3b3370574cf	2303	do { /* Find an FAT volume */
mbed_official	5:b3b3370574cf	2304	bsect = br[i];
mbed_official	5:b3b3370574cf	2305	fmt = bsect ? check_fs(fs, bsect) : 2; /* Check the partition */
mbed_official	5:b3b3370574cf	2306	} while (!LD2PT(vol) && fmt && ++i < 4);
mbed_official	5:b3b3370574cf	2307	}
mbed_official	5:b3b3370574cf	2308	if (fmt == 3) return FR_DISK_ERR; /* An error occured in the disk I/O layer */
mbed_official	5:b3b3370574cf	2309	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
mbed_official	5:b3b3370574cf	2310
mbed_official	5:b3b3370574cf	2311	/* An FAT volume is found. Following code initializes the file system object */
mbed_official	5:b3b3370574cf	2312
mbed_official	5:b3b3370574cf	2313	if (LD_WORD(fs->win + BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
mbed_official	5:b3b3370574cf	2314	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2315
mbed_official	5:b3b3370574cf	2316	fasize = LD_WORD(fs->win + BPB_FATSz16); /* Number of sectors per FAT */
mbed_official	5:b3b3370574cf	2317	if (!fasize) fasize = LD_DWORD(fs->win + BPB_FATSz32);
mbed_official	5:b3b3370574cf	2318	fs->fsize = fasize;
mbed_official	5:b3b3370574cf	2319
mbed_official	5:b3b3370574cf	2320	fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */
mbed_official	5:b3b3370574cf	2321	if (fs->n_fats != 1 && fs->n_fats != 2) /* (Must be 1 or 2) */
mbed_official	5:b3b3370574cf	2322	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2323	fasize = fs->n_fats; / Number of sectors for FAT area */
mbed_official	5:b3b3370574cf	2324
mbed_official	5:b3b3370574cf	2325	fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
mbed_official	5:b3b3370574cf	2326	if (!fs->csize \|\| (fs->csize & (fs->csize - 1))) /* (Must be power of 2) */
mbed_official	5:b3b3370574cf	2327	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2328
mbed_official	5:b3b3370574cf	2329	fs->n_rootdir = LD_WORD(fs->win + BPB_RootEntCnt); /* Number of root directory entries */
mbed_official	5:b3b3370574cf	2330	if (fs->n_rootdir % (SS(fs) / SZ_DIRE)) /* (Must be sector aligned) */
mbed_official	5:b3b3370574cf	2331	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2332
mbed_official	5:b3b3370574cf	2333	tsect = LD_WORD(fs->win + BPB_TotSec16); /* Number of sectors on the volume */
mbed_official	5:b3b3370574cf	2334	if (!tsect) tsect = LD_DWORD(fs->win + BPB_TotSec32);
mbed_official	5:b3b3370574cf	2335
mbed_official	5:b3b3370574cf	2336	nrsv = LD_WORD(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */
mbed_official	5:b3b3370574cf	2337	if (!nrsv) return FR_NO_FILESYSTEM; /* (Must not be 0) */
mbed_official	5:b3b3370574cf	2338
mbed_official	5:b3b3370574cf	2339	/* Determine the FAT sub type */
mbed_official	5:b3b3370574cf	2340	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIRE); /* RSV + FAT + FATFS_DIR */
mbed_official	5:b3b3370574cf	2341	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mbed_official	5:b3b3370574cf	2342	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
mbed_official	5:b3b3370574cf	2343	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mbed_official	5:b3b3370574cf	2344	fmt = FS_FAT12;
mbed_official	5:b3b3370574cf	2345	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
mbed_official	5:b3b3370574cf	2346	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
mbed_official	5:b3b3370574cf	2347
mbed_official	5:b3b3370574cf	2348	/* Boundaries and Limits */
mbed_official	5:b3b3370574cf	2349	fs->n_fatent = nclst + 2; /* Number of FAT entries */
mbed_official	5:b3b3370574cf	2350	fs->volbase = bsect; /* Volume start sector */
mbed_official	5:b3b3370574cf	2351	fs->fatbase = bsect + nrsv; /* FAT start sector */
mbed_official	5:b3b3370574cf	2352	fs->database = bsect + sysect; /* Data start sector */
mbed_official	5:b3b3370574cf	2353	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	2354	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
mbed_official	5:b3b3370574cf	2355	fs->dirbase = LD_DWORD(fs->win + BPB_RootClus); /* Root directory start cluster */
mbed_official	5:b3b3370574cf	2356	szbfat = fs->n_fatent * 4; /* (Needed FAT size) */
mbed_official	5:b3b3370574cf	2357	} else {
mbed_official	5:b3b3370574cf	2358	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
mbed_official	5:b3b3370574cf	2359	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
mbed_official	5:b3b3370574cf	2360	szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */
mbed_official	5:b3b3370574cf	2361	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
mbed_official	5:b3b3370574cf	2362	}
mbed_official	5:b3b3370574cf	2363	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than the size needed) */
mbed_official	5:b3b3370574cf	2364	return FR_NO_FILESYSTEM;
emilmont	1:46ce1e16c870	2365
emilmont	1:46ce1e16c870	2366	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2367	/* Initialize cluster allocation information */
mbed_official	5:b3b3370574cf	2368	fs->last_clust = fs->free_clust = 0xFFFFFFFF;
mbed_official	5:b3b3370574cf	2369
mbed_official	5:b3b3370574cf	2370	/* Get fsinfo if available */
mbed_official	5:b3b3370574cf	2371	fs->fsi_flag = 0x80;
mbed_official	5:b3b3370574cf	2372	#if (_FS_NOFSINFO & 3) != 3
mbed_official	6:a5fcdbf92056	2373	if (fmt == FS_FAT32 /* Enable FSINFO only if FAT32 and BPB_FSInfo == 1 */
mbed_official	5:b3b3370574cf	2374	&& LD_WORD(fs->win + BPB_FSInfo) == 1
mbed_official	5:b3b3370574cf	2375	&& move_window(fs, bsect + 1) == FR_OK)
mbed_official	5:b3b3370574cf	2376	{
mbed_official	5:b3b3370574cf	2377	fs->fsi_flag = 0;
mbed_official	5:b3b3370574cf	2378	if (LD_WORD(fs->win + BS_55AA) == 0xAA55 /* Load FSINFO data if available */
mbed_official	5:b3b3370574cf	2379	&& LD_DWORD(fs->win + FSI_LeadSig) == 0x41615252
mbed_official	5:b3b3370574cf	2380	&& LD_DWORD(fs->win + FSI_StrucSig) == 0x61417272)
mbed_official	5:b3b3370574cf	2381	{
mbed_official	5:b3b3370574cf	2382	#if (_FS_NOFSINFO & 1) == 0
mbed_official	5:b3b3370574cf	2383	fs->free_clust = LD_DWORD(fs->win + FSI_Free_Count);
emilmont	1:46ce1e16c870	2384	#endif
mbed_official	5:b3b3370574cf	2385	#if (_FS_NOFSINFO & 2) == 0
mbed_official	5:b3b3370574cf	2386	fs->last_clust = LD_DWORD(fs->win + FSI_Nxt_Free);
mbed_official	5:b3b3370574cf	2387	#endif
mbed_official	5:b3b3370574cf	2388	}
mbed_official	5:b3b3370574cf	2389	}
mbed_official	5:b3b3370574cf	2390	#endif
mbed_official	5:b3b3370574cf	2391	#endif
mbed_official	5:b3b3370574cf	2392	fs->fs_type = fmt; /* FAT sub-type */
mbed_official	5:b3b3370574cf	2393	fs->id = ++Fsid; /* File system mount ID */
emilmont	1:46ce1e16c870	2394	#if _FS_RPATH
mbed_official	5:b3b3370574cf	2395	fs->cdir = 0; /* Set current directory to root */
emilmont	1:46ce1e16c870	2396	#endif
mbed_official	5:b3b3370574cf	2397	#if _FS_LOCK /* Clear file lock semaphores */
mbed_official	5:b3b3370574cf	2398	clear_lock(fs);
emilmont	1:46ce1e16c870	2399	#endif
emilmont	1:46ce1e16c870	2400
mbed_official	5:b3b3370574cf	2401	return FR_OK;
emilmont	1:46ce1e16c870	2402	}
emilmont	1:46ce1e16c870	2403
emilmont	1:46ce1e16c870	2404
emilmont	1:46ce1e16c870	2405
emilmont	1:46ce1e16c870	2406
emilmont	1:46ce1e16c870	2407	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2408	/* Check if the file/directory object is valid or not */
emilmont	1:46ce1e16c870	2409	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2410
emilmont	1:46ce1e16c870	2411	static
mbed_official	5:b3b3370574cf	2412	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
mbed_official	5:b3b3370574cf	2413	void* obj /* Pointer to the object FIL/FATFS_DIR to check validity */
emilmont	1:46ce1e16c870	2414	)
emilmont	1:46ce1e16c870	2415	{
mbed_official	5:b3b3370574cf	2416	FIL fil = (FIL)obj; /* Assuming offset of .fs and .id in the FIL/FATFS_DIR structure is identical */
mbed_official	5:b3b3370574cf	2417
mbed_official	5:b3b3370574cf	2418
mbed_official	6:a5fcdbf92056	2419	if (!fil \|\| !fil->fs \|\| !fil->fs->fs_type \|\| fil->fs->id != fil->id \|\| (disk_status(fil->fs->drv) & STA_NOINIT))
mbed_official	5:b3b3370574cf	2420	return FR_INVALID_OBJECT;
mbed_official	5:b3b3370574cf	2421
mbed_official	5:b3b3370574cf	2422	ENTER_FF(fil->fs); /* Lock file system */
mbed_official	5:b3b3370574cf	2423
mbed_official	5:b3b3370574cf	2424	return FR_OK;
emilmont	1:46ce1e16c870	2425	}
emilmont	1:46ce1e16c870	2426
emilmont	1:46ce1e16c870	2427
emilmont	1:46ce1e16c870	2428
emilmont	1:46ce1e16c870	2429
emilmont	1:46ce1e16c870	2430	/*--------------------------------------------------------------------------
emilmont	1:46ce1e16c870	2431
emilmont	1:46ce1e16c870	2432	Public Functions
emilmont	1:46ce1e16c870	2433
mbed_official	6:a5fcdbf92056	2434	---------------------------------------------------------------------------*/
emilmont	1:46ce1e16c870	2435
emilmont	1:46ce1e16c870	2436
emilmont	1:46ce1e16c870	2437
emilmont	1:46ce1e16c870	2438	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2439	/* Mount/Unmount a Logical Drive */
emilmont	1:46ce1e16c870	2440	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2441
emilmont	1:46ce1e16c870	2442	FRESULT f_mount (
mbed_official	5:b3b3370574cf	2443	FATFS* fs, /* Pointer to the file system object (NULL:unmount)*/
mbed_official	5:b3b3370574cf	2444	const TCHAR* path, /* Logical drive number to be mounted/unmounted */
mbed_official	5:b3b3370574cf	2445	BYTE opt /* 0:Do not mount (delayed mount), 1:Mount immediately */
emilmont	1:46ce1e16c870	2446	)
emilmont	1:46ce1e16c870	2447	{
mbed_official	5:b3b3370574cf	2448	FATFS *cfs;
mbed_official	5:b3b3370574cf	2449	int vol;
mbed_official	5:b3b3370574cf	2450	FRESULT res;
mbed_official	5:b3b3370574cf	2451	const TCHAR *rp = path;
mbed_official	5:b3b3370574cf	2452
WiredHome	8:f08059355141	2453	INFO("f_mount(%p,%s,%02X)", fs, path, opt);
mbed_official	5:b3b3370574cf	2454	vol = get_ldnumber(&rp);
mbed_official	5:b3b3370574cf	2455	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	2456	cfs = FatFs[vol]; /* Pointer to fs object */
WiredHome	8:f08059355141	2457	INFO(" cfs(%p) = FatFs[%d]", cfs, vol);
mbed_official	5:b3b3370574cf	2458
mbed_official	5:b3b3370574cf	2459	if (cfs) {
emilmont	1:46ce1e16c870	2460	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2461	clear_lock(cfs);
emilmont	1:46ce1e16c870	2462	#endif
mbed_official	5:b3b3370574cf	2463	#if _FS_REENTRANT /* Discard sync object of the current volume */
mbed_official	5:b3b3370574cf	2464	if (!ff_del_syncobj(cfs->sobj)) return FR_INT_ERR;
emilmont	1:46ce1e16c870	2465	#endif
mbed_official	5:b3b3370574cf	2466	cfs->fs_type = 0; /* Clear old fs object */
mbed_official	5:b3b3370574cf	2467	}
mbed_official	5:b3b3370574cf	2468
mbed_official	5:b3b3370574cf	2469	if (fs) {
mbed_official	5:b3b3370574cf	2470	fs->fs_type = 0; /* Clear new fs object */
mbed_official	5:b3b3370574cf	2471	#if _FS_REENTRANT /* Create sync object for the new volume */
mbed_official	5:b3b3370574cf	2472	if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR;
emilmont	1:46ce1e16c870	2473	#endif
mbed_official	5:b3b3370574cf	2474	}
WiredHome	8:f08059355141	2475	INFO(" assign FatFs[%d] = %p", vol, fs);
mbed_official	5:b3b3370574cf	2476	FatFs[vol] = fs; /* Register new fs object */
mbed_official	5:b3b3370574cf	2477
mbed_official	5:b3b3370574cf	2478	if (!fs \|\| opt != 1) return FR_OK; /* Do not mount now, it will be mounted later */
mbed_official	5:b3b3370574cf	2479
mbed_official	5:b3b3370574cf	2480	res = find_volume(&fs, &path, 0); /* Force mounted the volume */
mbed_official	5:b3b3370574cf	2481	LEAVE_FF(fs, res);
emilmont	1:46ce1e16c870	2482	}
emilmont	1:46ce1e16c870	2483
emilmont	1:46ce1e16c870	2484
emilmont	1:46ce1e16c870	2485
emilmont	1:46ce1e16c870	2486
emilmont	1:46ce1e16c870	2487	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2488	/* Open or Create a File */
emilmont	1:46ce1e16c870	2489	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2490
emilmont	1:46ce1e16c870	2491	FRESULT f_open (
mbed_official	5:b3b3370574cf	2492	FIL* fp, /* Pointer to the blank file object */
mbed_official	5:b3b3370574cf	2493	const TCHAR* path, /* Pointer to the file name */
mbed_official	5:b3b3370574cf	2494	BYTE mode /* Access mode and file open mode flags */
emilmont	1:46ce1e16c870	2495	)
emilmont	1:46ce1e16c870	2496	{
mbed_official	5:b3b3370574cf	2497	FRESULT res;
mbed_official	5:b3b3370574cf	2498	FATFS_DIR dj;
mbed_official	6:a5fcdbf92056	2499	BYTE *dir;
mbed_official	5:b3b3370574cf	2500	DEFINE_NAMEBUF;
emilmont	1:46ce1e16c870	2501	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2502	DWORD dw, cl;
mbed_official	5:b3b3370574cf	2503	#endif
mbed_official	5:b3b3370574cf	2504
WiredHome	8:f08059355141	2505	INFO("f_open(%p,%s,0x%02X)", fp, path, mode);
mbed_official	5:b3b3370574cf	2506	if (!fp) return FR_INVALID_OBJECT;
mbed_official	5:b3b3370574cf	2507	fp->fs = 0; /* Clear file object */
mbed_official	5:b3b3370574cf	2508
mbed_official	5:b3b3370574cf	2509	/* Get logical drive number */
mbed_official	5:b3b3370574cf	2510	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2511	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
mbed_official	5:b3b3370574cf	2512	res = find_volume(&dj.fs, &path, (BYTE)(mode & ~FA_READ));
emilmont	1:46ce1e16c870	2513	#else
mbed_official	5:b3b3370574cf	2514	mode &= FA_READ;
mbed_official	5:b3b3370574cf	2515	res = find_volume(&dj.fs, &path, 0);
emilmont	1:46ce1e16c870	2516	#endif
WiredHome	8:f08059355141	2517	INFO(" res(%d) == FR_OK(%d)", res, FR_OK);
mbed_official	5:b3b3370574cf	2518	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2519	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	2520	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	6:a5fcdbf92056	2521	dir = dj.dir;
mbed_official	5:b3b3370574cf	2522	#if !_FS_READONLY /* R/W configuration */
WiredHome	8:f08059355141	2523	INFO(" res(%d) == FR_OK(%d)", res, FR_OK);
mbed_official	5:b3b3370574cf	2524	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	2525	if (!dir) /* Default directory itself */
mbed_official	5:b3b3370574cf	2526	res = FR_INVALID_NAME;
emilmont	1:46ce1e16c870	2527	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2528	else
mbed_official	5:b3b3370574cf	2529	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
emilmont	1:46ce1e16c870	2530	#endif
mbed_official	5:b3b3370574cf	2531	}
mbed_official	5:b3b3370574cf	2532	/* Create or Open a file */
WiredHome	8:f08059355141	2533	INFO(" res(%d) == FR_OK(%d)", res, FR_OK);
WiredHome	8:f08059355141	2534	INFO(" mode(%02X) & const(%02X)", mode, (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW));
mbed_official	5:b3b3370574cf	2535	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
mbed_official	5:b3b3370574cf	2536	if (res != FR_OK) { /* No file, create new */
mbed_official	5:b3b3370574cf	2537	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
emilmont	1:46ce1e16c870	2538	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2539	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
emilmont	1:46ce1e16c870	2540	#else
mbed_official	5:b3b3370574cf	2541	res = dir_register(&dj);
emilmont	1:46ce1e16c870	2542	#endif
mbed_official	5:b3b3370574cf	2543	mode \|= FA_CREATE_ALWAYS; /* File is created */
mbed_official	6:a5fcdbf92056	2544	dir = dj.dir; /* New entry */
mbed_official	5:b3b3370574cf	2545	}
mbed_official	5:b3b3370574cf	2546	else { /* Any object is already existing */
mbed_official	6:a5fcdbf92056	2547	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or FATFS_DIR) */
mbed_official	5:b3b3370574cf	2548	res = FR_DENIED;
mbed_official	5:b3b3370574cf	2549	} else {
mbed_official	5:b3b3370574cf	2550	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
mbed_official	5:b3b3370574cf	2551	res = FR_EXIST;
mbed_official	5:b3b3370574cf	2552	}
mbed_official	5:b3b3370574cf	2553	}
mbed_official	5:b3b3370574cf	2554	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
mbed_official	6:a5fcdbf92056	2555	dw = GET_FATTIME();
mbed_official	6:a5fcdbf92056	2556	ST_DWORD(dir + DIR_CrtTime, dw);/* Set created time */
mbed_official	6:a5fcdbf92056	2557	ST_DWORD(dir + DIR_WrtTime, dw);/* Set modified time */
mbed_official	6:a5fcdbf92056	2558	dir[DIR_Attr] = 0; /* Reset attribute */
mbed_official	6:a5fcdbf92056	2559	ST_DWORD(dir + DIR_FileSize, 0);/* Reset file size */
mbed_official	6:a5fcdbf92056	2560	cl = ld_clust(dj.fs, dir); /* Get cluster chain */
mbed_official	6:a5fcdbf92056	2561	st_clust(dir, 0); /* Reset cluster */
mbed_official	5:b3b3370574cf	2562	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	2563	if (cl) { /* Remove the cluster chain if exist */
mbed_official	5:b3b3370574cf	2564	dw = dj.fs->winsect;
mbed_official	5:b3b3370574cf	2565	res = remove_chain(dj.fs, cl);
mbed_official	5:b3b3370574cf	2566	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2567	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
mbed_official	5:b3b3370574cf	2568	res = move_window(dj.fs, dw);
mbed_official	5:b3b3370574cf	2569	}
mbed_official	5:b3b3370574cf	2570	}
mbed_official	5:b3b3370574cf	2571	}
mbed_official	5:b3b3370574cf	2572	}
mbed_official	5:b3b3370574cf	2573	else { /* Open an existing file */
mbed_official	6:a5fcdbf92056	2574	if (res == FR_OK) { /* Following succeeded */
mbed_official	6:a5fcdbf92056	2575	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
mbed_official	5:b3b3370574cf	2576	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	2577	} else {
mbed_official	6:a5fcdbf92056	2578	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
mbed_official	5:b3b3370574cf	2579	res = FR_DENIED;
mbed_official	5:b3b3370574cf	2580	}
mbed_official	5:b3b3370574cf	2581	}
mbed_official	5:b3b3370574cf	2582	}
mbed_official	5:b3b3370574cf	2583	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2584	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
mbed_official	5:b3b3370574cf	2585	mode \|= FA__WRITTEN;
mbed_official	5:b3b3370574cf	2586	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
mbed_official	6:a5fcdbf92056	2587	fp->dir_ptr = dir;
emilmont	1:46ce1e16c870	2588	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2589	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
mbed_official	5:b3b3370574cf	2590	if (!fp->lockid) res = FR_INT_ERR;
emilmont	1:46ce1e16c870	2591	#endif
mbed_official	5:b3b3370574cf	2592	}
mbed_official	5:b3b3370574cf	2593
mbed_official	5:b3b3370574cf	2594	#else /* R/O configuration */
mbed_official	5:b3b3370574cf	2595	if (res == FR_OK) { /* Follow succeeded */
mbed_official	6:a5fcdbf92056	2596	dir = dj.dir;
mbed_official	6:a5fcdbf92056	2597	if (!dir) { /* Current directory itself */
mbed_official	5:b3b3370574cf	2598	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	2599	} else {
mbed_official	6:a5fcdbf92056	2600	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
mbed_official	5:b3b3370574cf	2601	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	2602	}
mbed_official	5:b3b3370574cf	2603	}
emilmont	1:46ce1e16c870	2604	#endif
mbed_official	5:b3b3370574cf	2605	FREE_BUF();
mbed_official	5:b3b3370574cf	2606
mbed_official	5:b3b3370574cf	2607	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2608	fp->flag = mode; /* File access mode */
mbed_official	5:b3b3370574cf	2609	fp->err = 0; /* Clear error flag */
mbed_official	6:a5fcdbf92056	2610	fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
mbed_official	6:a5fcdbf92056	2611	fp->fsize = LD_DWORD(dir + DIR_FileSize); /* File size */
mbed_official	5:b3b3370574cf	2612	fp->fptr = 0; /* File pointer */
mbed_official	5:b3b3370574cf	2613	fp->dsect = 0;
emilmont	1:46ce1e16c870	2614	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	2615	fp->cltbl = 0; /* Normal seek mode */
emilmont	1:46ce1e16c870	2616	#endif
mbed_official	5:b3b3370574cf	2617	fp->fs = dj.fs; /* Validate file object */
mbed_official	5:b3b3370574cf	2618	fp->id = fp->fs->id;
mbed_official	5:b3b3370574cf	2619	}
mbed_official	5:b3b3370574cf	2620	}
mbed_official	5:b3b3370574cf	2621
mbed_official	5:b3b3370574cf	2622	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	2623	}
emilmont	1:46ce1e16c870	2624
emilmont	1:46ce1e16c870	2625
emilmont	1:46ce1e16c870	2626
emilmont	1:46ce1e16c870	2627
emilmont	1:46ce1e16c870	2628	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2629	/* Read File */
emilmont	1:46ce1e16c870	2630	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2631
emilmont	1:46ce1e16c870	2632	FRESULT f_read (
mbed_official	5:b3b3370574cf	2633	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	2634	void* buff, /* Pointer to data buffer */
mbed_official	5:b3b3370574cf	2635	UINT btr, /* Number of bytes to read */
mbed_official	5:b3b3370574cf	2636	UINT* br /* Pointer to number of bytes read */
emilmont	1:46ce1e16c870	2637	)
emilmont	1:46ce1e16c870	2638	{
mbed_official	5:b3b3370574cf	2639	FRESULT res;
mbed_official	5:b3b3370574cf	2640	DWORD clst, sect, remain;
mbed_official	5:b3b3370574cf	2641	UINT rcnt, cc;
mbed_official	5:b3b3370574cf	2642	BYTE csect, rbuff = (BYTE)buff;
mbed_official	5:b3b3370574cf	2643
mbed_official	5:b3b3370574cf	2644
mbed_official	5:b3b3370574cf	2645	br = 0; / Clear read byte counter */
mbed_official	5:b3b3370574cf	2646
mbed_official	5:b3b3370574cf	2647	res = validate(fp); /* Check validity */
mbed_official	5:b3b3370574cf	2648	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	2649	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	2650	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mbed_official	5:b3b3370574cf	2651	if (!(fp->flag & FA_READ)) /* Check access mode */
mbed_official	5:b3b3370574cf	2652	LEAVE_FF(fp->fs, FR_DENIED);
mbed_official	5:b3b3370574cf	2653	remain = fp->fsize - fp->fptr;
mbed_official	5:b3b3370574cf	2654	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
mbed_official	5:b3b3370574cf	2655
mbed_official	5:b3b3370574cf	2656	for ( ; btr; /* Repeat until all data read */
mbed_official	5:b3b3370574cf	2657	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
mbed_official	5:b3b3370574cf	2658	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mbed_official	5:b3b3370574cf	2659	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mbed_official	5:b3b3370574cf	2660	if (!csect) { /* On the cluster boundary? */
mbed_official	5:b3b3370574cf	2661	if (fp->fptr == 0) { /* On the top of the file? */
mbed_official	5:b3b3370574cf	2662	clst = fp->sclust; /* Follow from the origin */
mbed_official	5:b3b3370574cf	2663	} else { /* Middle or end of the file */
emilmont	1:46ce1e16c870	2664	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	2665	if (fp->cltbl)
mbed_official	5:b3b3370574cf	2666	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mbed_official	5:b3b3370574cf	2667	else
emilmont	1:46ce1e16c870	2668	#endif
mbed_official	5:b3b3370574cf	2669	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
mbed_official	5:b3b3370574cf	2670	}
mbed_official	5:b3b3370574cf	2671	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2672	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2673	fp->clust = clst; /* Update current cluster */
mbed_official	5:b3b3370574cf	2674	}
mbed_official	5:b3b3370574cf	2675	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mbed_official	5:b3b3370574cf	2676	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2677	sect += csect;
mbed_official	5:b3b3370574cf	2678	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
mbed_official	5:b3b3370574cf	2679	if (cc) { /* Read maximum contiguous sectors directly */
mbed_official	5:b3b3370574cf	2680	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mbed_official	5:b3b3370574cf	2681	cc = fp->fs->csize - csect;
mbed_official	5:b3b3370574cf	2682	if (disk_read(fp->fs->drv, rbuff, sect, cc) != RES_OK)
mbed_official	5:b3b3370574cf	2683	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2684	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
emilmont	1:46ce1e16c870	2685	#if _FS_TINY
mbed_official	5:b3b3370574cf	2686	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
mbed_official	5:b3b3370574cf	2687	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
emilmont	1:46ce1e16c870	2688	#else
mbed_official	5:b3b3370574cf	2689	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
mbed_official	5:b3b3370574cf	2690	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
emilmont	1:46ce1e16c870	2691	#endif
emilmont	1:46ce1e16c870	2692	#endif
mbed_official	5:b3b3370574cf	2693	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mbed_official	5:b3b3370574cf	2694	continue;
mbed_official	5:b3b3370574cf	2695	}
emilmont	1:46ce1e16c870	2696	#if !_FS_TINY
mbed_official	5:b3b3370574cf	2697	if (fp->dsect != sect) { /* Load data sector if not in cache */
emilmont	1:46ce1e16c870	2698	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2699	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mbed_official	5:b3b3370574cf	2700	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2701	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2702	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2703	}
emilmont	1:46ce1e16c870	2704	#endif
mbed_official	5:b3b3370574cf	2705	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
mbed_official	5:b3b3370574cf	2706	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2707	}
emilmont	1:46ce1e16c870	2708	#endif
mbed_official	5:b3b3370574cf	2709	fp->dsect = sect;
mbed_official	5:b3b3370574cf	2710	}
mbed_official	5:b3b3370574cf	2711	rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
mbed_official	5:b3b3370574cf	2712	if (rcnt > btr) rcnt = btr;
emilmont	1:46ce1e16c870	2713	#if _FS_TINY
mbed_official	5:b3b3370574cf	2714	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
mbed_official	5:b3b3370574cf	2715	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2716	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
emilmont	1:46ce1e16c870	2717	#else
mbed_official	5:b3b3370574cf	2718	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
emilmont	1:46ce1e16c870	2719	#endif
mbed_official	5:b3b3370574cf	2720	}
mbed_official	5:b3b3370574cf	2721
mbed_official	5:b3b3370574cf	2722	LEAVE_FF(fp->fs, FR_OK);
emilmont	1:46ce1e16c870	2723	}
emilmont	1:46ce1e16c870	2724
emilmont	1:46ce1e16c870	2725
emilmont	1:46ce1e16c870	2726
emilmont	1:46ce1e16c870	2727
emilmont	1:46ce1e16c870	2728	#if !_FS_READONLY
emilmont	1:46ce1e16c870	2729	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2730	/* Write File */
emilmont	1:46ce1e16c870	2731	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2732
emilmont	1:46ce1e16c870	2733	FRESULT f_write (
mbed_official	5:b3b3370574cf	2734	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	2735	const void buff, / Pointer to the data to be written */
mbed_official	5:b3b3370574cf	2736	UINT btw, /* Number of bytes to write */
mbed_official	5:b3b3370574cf	2737	UINT* bw /* Pointer to number of bytes written */
emilmont	1:46ce1e16c870	2738	)
emilmont	1:46ce1e16c870	2739	{
mbed_official	5:b3b3370574cf	2740	FRESULT res;
mbed_official	5:b3b3370574cf	2741	DWORD clst, sect;
mbed_official	5:b3b3370574cf	2742	UINT wcnt, cc;
mbed_official	5:b3b3370574cf	2743	const BYTE wbuff = (const BYTE)buff;
mbed_official	5:b3b3370574cf	2744	BYTE csect;
mbed_official	5:b3b3370574cf	2745	bool need_sync = false;
mbed_official	5:b3b3370574cf	2746
mbed_official	5:b3b3370574cf	2747	bw = 0; / Clear write byte counter */
mbed_official	5:b3b3370574cf	2748
mbed_official	5:b3b3370574cf	2749	res = validate(fp); /* Check validity */
mbed_official	5:b3b3370574cf	2750	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	2751	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	2752	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mbed_official	5:b3b3370574cf	2753	if (!(fp->flag & FA_WRITE)) /* Check access mode */
mbed_official	5:b3b3370574cf	2754	LEAVE_FF(fp->fs, FR_DENIED);
mbed_official	5:b3b3370574cf	2755	if (fp->fptr + btw < fp->fptr) btw = 0; /* File size cannot reach 4GB */
mbed_official	5:b3b3370574cf	2756
mbed_official	5:b3b3370574cf	2757	for ( ; btw; /* Repeat until all data written */
mbed_official	5:b3b3370574cf	2758	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
mbed_official	5:b3b3370574cf	2759	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mbed_official	5:b3b3370574cf	2760	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mbed_official	5:b3b3370574cf	2761	if (!csect) { /* On the cluster boundary? */
mbed_official	5:b3b3370574cf	2762	if (fp->fptr == 0) { /* On the top of the file? */
mbed_official	5:b3b3370574cf	2763	clst = fp->sclust; /* Follow from the origin */
mbed_official	5:b3b3370574cf	2764	if (clst == 0) /* When no cluster is allocated, */
mbed_official	5:b3b3370574cf	2765	clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
mbed_official	5:b3b3370574cf	2766	} else { /* Middle or end of the file */
emilmont	1:46ce1e16c870	2767	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	2768	if (fp->cltbl)
mbed_official	5:b3b3370574cf	2769	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mbed_official	5:b3b3370574cf	2770	else
emilmont	1:46ce1e16c870	2771	#endif
mbed_official	5:b3b3370574cf	2772	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
mbed_official	5:b3b3370574cf	2773	}
mbed_official	5:b3b3370574cf	2774	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
mbed_official	5:b3b3370574cf	2775	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2776	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2777	fp->clust = clst; /* Update current cluster */
mbed_official	5:b3b3370574cf	2778	if (fp->sclust == 0) fp->sclust = clst; /* Set start cluster if the first write */
mbed_official	5:b3b3370574cf	2779
mbed_official	6:a5fcdbf92056	2780	#if FLUSH_ON_NEW_CLUSTER
mbed_official	4:3ff2606d5713	2781	// We do not need to flush for the first cluster
mbed_official	4:3ff2606d5713	2782	if (fp->fptr != 0) {
mbed_official	4:3ff2606d5713	2783	need_sync = true;
mbed_official	4:3ff2606d5713	2784	}
mbed_official	4:3ff2606d5713	2785	#endif
mbed_official	5:b3b3370574cf	2786	}
emilmont	1:46ce1e16c870	2787	#if _FS_TINY
mbed_official	5:b3b3370574cf	2788	if (fp->fs->winsect == fp->dsect && sync_window(fp->fs)) /* Write-back sector cache */
mbed_official	5:b3b3370574cf	2789	ABORT(fp->fs, FR_DISK_ERR);
emilmont	1:46ce1e16c870	2790	#else
mbed_official	5:b3b3370574cf	2791	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
mbed_official	5:b3b3370574cf	2792	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2793	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2794	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2795	}
emilmont	1:46ce1e16c870	2796	#endif
mbed_official	5:b3b3370574cf	2797	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mbed_official	5:b3b3370574cf	2798	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2799	sect += csect;
mbed_official	5:b3b3370574cf	2800	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
mbed_official	5:b3b3370574cf	2801	if (cc) { /* Write maximum contiguous sectors directly */
mbed_official	5:b3b3370574cf	2802	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mbed_official	5:b3b3370574cf	2803	cc = fp->fs->csize - csect;
mbed_official	5:b3b3370574cf	2804	if (disk_write(fp->fs->drv, wbuff, sect, cc) != RES_OK)
mbed_official	5:b3b3370574cf	2805	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2806	#if _FS_MINIMIZE <= 2
emilmont	1:46ce1e16c870	2807	#if _FS_TINY
mbed_official	5:b3b3370574cf	2808	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mbed_official	5:b3b3370574cf	2809	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
mbed_official	5:b3b3370574cf	2810	fp->fs->wflag = 0;
mbed_official	5:b3b3370574cf	2811	}
emilmont	1:46ce1e16c870	2812	#else
mbed_official	5:b3b3370574cf	2813	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mbed_official	5:b3b3370574cf	2814	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
mbed_official	5:b3b3370574cf	2815	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2816	}
emilmont	1:46ce1e16c870	2817	#endif
mbed_official	5:b3b3370574cf	2818	#endif
mbed_official	5:b3b3370574cf	2819	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mbed_official	6:a5fcdbf92056	2820	#if FLUSH_ON_NEW_SECTOR
mbed_official	4:3ff2606d5713	2821	need_sync = true;
mbed_official	4:3ff2606d5713	2822	#endif
mbed_official	5:b3b3370574cf	2823	continue;
mbed_official	5:b3b3370574cf	2824	}
emilmont	1:46ce1e16c870	2825	#if _FS_TINY
mbed_official	5:b3b3370574cf	2826	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
mbed_official	5:b3b3370574cf	2827	if (sync_window(fp->fs)) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2828	fp->fs->winsect = sect;
mbed_official	5:b3b3370574cf	2829	}
emilmont	1:46ce1e16c870	2830	#else
mbed_official	5:b3b3370574cf	2831	if (fp->dsect != sect) { /* Fill sector cache with file data */
mbed_official	5:b3b3370574cf	2832	if (fp->fptr < fp->fsize &&
mbed_official	5:b3b3370574cf	2833	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2834	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2835	}
emilmont	1:46ce1e16c870	2836	#endif
mbed_official	5:b3b3370574cf	2837	fp->dsect = sect;
mbed_official	5:b3b3370574cf	2838	}
mbed_official	5:b3b3370574cf	2839	wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
mbed_official	5:b3b3370574cf	2840	if (wcnt > btw) wcnt = btw;
emilmont	1:46ce1e16c870	2841	#if _FS_TINY
mbed_official	5:b3b3370574cf	2842	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
mbed_official	5:b3b3370574cf	2843	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2844	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mbed_official	5:b3b3370574cf	2845	fp->fs->wflag = 1;
emilmont	1:46ce1e16c870	2846	#else
mbed_official	5:b3b3370574cf	2847	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mbed_official	5:b3b3370574cf	2848	fp->flag \|= FA__DIRTY;
emilmont	1:46ce1e16c870	2849	#endif
mbed_official	5:b3b3370574cf	2850	}
mbed_official	5:b3b3370574cf	2851
mbed_official	5:b3b3370574cf	2852	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
mbed_official	5:b3b3370574cf	2853	fp->flag \|= FA__WRITTEN; /* Set file change flag */
mbed_official	5:b3b3370574cf	2854
mbed_official	5:b3b3370574cf	2855	if (need_sync) {
mbed_official	4:3ff2606d5713	2856	f_sync (fp);
mbed_official	4:3ff2606d5713	2857	}
mbed_official	6:a5fcdbf92056	2858
mbed_official	5:b3b3370574cf	2859	LEAVE_FF(fp->fs, FR_OK);
emilmont	1:46ce1e16c870	2860	}
emilmont	1:46ce1e16c870	2861
emilmont	1:46ce1e16c870	2862
emilmont	1:46ce1e16c870	2863
emilmont	1:46ce1e16c870	2864
emilmont	1:46ce1e16c870	2865	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2866	/* Synchronize the File */
emilmont	1:46ce1e16c870	2867	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2868
emilmont	1:46ce1e16c870	2869	FRESULT f_sync (
mbed_official	5:b3b3370574cf	2870	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	2871	)
emilmont	1:46ce1e16c870	2872	{
mbed_official	5:b3b3370574cf	2873	FRESULT res;
mbed_official	5:b3b3370574cf	2874	DWORD tm;
mbed_official	6:a5fcdbf92056	2875	BYTE *dir;
mbed_official	5:b3b3370574cf	2876
mbed_official	5:b3b3370574cf	2877
mbed_official	5:b3b3370574cf	2878	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	2879	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	2880	if (fp->flag & FA__WRITTEN) { /* Is there any change to the file? */
mbed_official	5:b3b3370574cf	2881	#if !_FS_TINY
mbed_official	6:a5fcdbf92056	2882	if (fp->flag & FA__DIRTY) { /* Write-back cached data if needed */
mbed_official	5:b3b3370574cf	2883	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2884	LEAVE_FF(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2885	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2886	}
emilmont	1:46ce1e16c870	2887	#endif
mbed_official	5:b3b3370574cf	2888	/* Update the directory entry */
mbed_official	5:b3b3370574cf	2889	res = move_window(fp->fs, fp->dir_sect);
mbed_official	5:b3b3370574cf	2890	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	2891	dir = fp->dir_ptr;
mbed_official	6:a5fcdbf92056	2892	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
mbed_official	6:a5fcdbf92056	2893	ST_DWORD(dir + DIR_FileSize, fp->fsize); /* Update file size */
mbed_official	6:a5fcdbf92056	2894	st_clust(dir, fp->sclust); /* Update start cluster */
mbed_official	6:a5fcdbf92056	2895	tm = GET_FATTIME(); /* Update modified time */
mbed_official	6:a5fcdbf92056	2896	ST_DWORD(dir + DIR_WrtTime, tm);
mbed_official	6:a5fcdbf92056	2897	ST_WORD(dir + DIR_LstAccDate, 0);
mbed_official	5:b3b3370574cf	2898	fp->flag &= ~FA__WRITTEN;
mbed_official	5:b3b3370574cf	2899	fp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	2900	res = sync_fs(fp->fs);
mbed_official	5:b3b3370574cf	2901	}
mbed_official	5:b3b3370574cf	2902	}
mbed_official	5:b3b3370574cf	2903	}
mbed_official	5:b3b3370574cf	2904
mbed_official	5:b3b3370574cf	2905	LEAVE_FF(fp->fs, res);
emilmont	1:46ce1e16c870	2906	}
emilmont	1:46ce1e16c870	2907
emilmont	1:46ce1e16c870	2908	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	2909
emilmont	1:46ce1e16c870	2910
emilmont	1:46ce1e16c870	2911
emilmont	1:46ce1e16c870	2912
emilmont	1:46ce1e16c870	2913	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2914	/* Close File */
emilmont	1:46ce1e16c870	2915	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2916
emilmont	1:46ce1e16c870	2917	FRESULT f_close (
mbed_official	5:b3b3370574cf	2918	FIL fp / Pointer to the file object to be closed */
emilmont	1:46ce1e16c870	2919	)
emilmont	1:46ce1e16c870	2920	{
mbed_official	5:b3b3370574cf	2921	FRESULT res;
mbed_official	5:b3b3370574cf	2922
mbed_official	5:b3b3370574cf	2923
mbed_official	5:b3b3370574cf	2924	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2925	res = f_sync(fp); /* Flush cached data */
mbed_official	5:b3b3370574cf	2926	if (res == FR_OK)
mbed_official	5:b3b3370574cf	2927	#endif
mbed_official	5:b3b3370574cf	2928	{
mbed_official	5:b3b3370574cf	2929	res = validate(fp); /* Lock volume */
mbed_official	5:b3b3370574cf	2930	if (res == FR_OK) {
emilmont	1:46ce1e16c870	2931	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	2932	FATFS *fs = fp->fs;
emilmont	1:46ce1e16c870	2933	#endif
emilmont	1:46ce1e16c870	2934	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2935	res = dec_lock(fp->lockid); /* Decrement file open counter */
mbed_official	5:b3b3370574cf	2936	if (res == FR_OK)
mbed_official	5:b3b3370574cf	2937	#endif
mbed_official	5:b3b3370574cf	2938	fp->fs = 0; /* Invalidate file object */
emilmont	1:46ce1e16c870	2939	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	2940	unlock_fs(fs, FR_OK); /* Unlock volume */
emilmont	1:46ce1e16c870	2941	#endif
mbed_official	5:b3b3370574cf	2942	}
mbed_official	5:b3b3370574cf	2943	}
mbed_official	5:b3b3370574cf	2944	return res;
emilmont	1:46ce1e16c870	2945	}
emilmont	1:46ce1e16c870	2946
emilmont	1:46ce1e16c870	2947
emilmont	1:46ce1e16c870	2948
emilmont	1:46ce1e16c870	2949
emilmont	1:46ce1e16c870	2950	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2951	/* Change Current Directory or Current Drive, Get Current Directory */
emilmont	1:46ce1e16c870	2952	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2953
emilmont	1:46ce1e16c870	2954	#if _FS_RPATH >= 1
mbed_official	5:b3b3370574cf	2955	#if _VOLUMES >= 2
emilmont	1:46ce1e16c870	2956	FRESULT f_chdrive (
mbed_official	5:b3b3370574cf	2957	const TCHAR* path /* Drive number */
emilmont	1:46ce1e16c870	2958	)
emilmont	1:46ce1e16c870	2959	{
mbed_official	5:b3b3370574cf	2960	int vol;
mbed_official	5:b3b3370574cf	2961
mbed_official	5:b3b3370574cf	2962
mbed_official	5:b3b3370574cf	2963	vol = get_ldnumber(&path);
mbed_official	5:b3b3370574cf	2964	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	2965
mbed_official	5:b3b3370574cf	2966	CurrVol = (BYTE)vol;
mbed_official	5:b3b3370574cf	2967
mbed_official	5:b3b3370574cf	2968	return FR_OK;
emilmont	1:46ce1e16c870	2969	}
mbed_official	5:b3b3370574cf	2970	#endif
emilmont	1:46ce1e16c870	2971
emilmont	1:46ce1e16c870	2972
emilmont	1:46ce1e16c870	2973	FRESULT f_chdir (
mbed_official	5:b3b3370574cf	2974	const TCHAR* path /* Pointer to the directory 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	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	2980
mbed_official	5:b3b3370574cf	2981
mbed_official	5:b3b3370574cf	2982	/* Get logical drive number */
mbed_official	5:b3b3370574cf	2983	res = find_volume(&dj.fs, &path, 0);
mbed_official	5:b3b3370574cf	2984	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2985	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	2986	res = follow_path(&dj, path); /* Follow the path */
mbed_official	5:b3b3370574cf	2987	FREE_BUF();
mbed_official	5:b3b3370574cf	2988	if (res == FR_OK) { /* Follow completed */
mbed_official	6:a5fcdbf92056	2989	if (!dj.dir) {
mbed_official	5:b3b3370574cf	2990	dj.fs->cdir = dj.sclust; /* Start directory itself */
mbed_official	5:b3b3370574cf	2991	} else {
mbed_official	6:a5fcdbf92056	2992	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
mbed_official	6:a5fcdbf92056	2993	dj.fs->cdir = ld_clust(dj.fs, dj.dir);
mbed_official	5:b3b3370574cf	2994	else
mbed_official	5:b3b3370574cf	2995	res = FR_NO_PATH; /* Reached but a file */
mbed_official	5:b3b3370574cf	2996	}
mbed_official	5:b3b3370574cf	2997	}
mbed_official	5:b3b3370574cf	2998	if (res == FR_NO_FILE) res = FR_NO_PATH;
mbed_official	5:b3b3370574cf	2999	}
mbed_official	5:b3b3370574cf	3000
mbed_official	5:b3b3370574cf	3001	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3002	}
emilmont	1:46ce1e16c870	3003
emilmont	1:46ce1e16c870	3004
emilmont	1:46ce1e16c870	3005	#if _FS_RPATH >= 2
emilmont	1:46ce1e16c870	3006	FRESULT f_getcwd (
mbed_official	5:b3b3370574cf	3007	TCHAR* buff, /* Pointer to the directory path */
mbed_official	5:b3b3370574cf	3008	UINT len /* Size of path */
emilmont	1:46ce1e16c870	3009	)
emilmont	1:46ce1e16c870	3010	{
mbed_official	5:b3b3370574cf	3011	FRESULT res;
mbed_official	5:b3b3370574cf	3012	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3013	UINT i, n;
mbed_official	5:b3b3370574cf	3014	DWORD ccl;
mbed_official	5:b3b3370574cf	3015	TCHAR *tp;
mbed_official	5:b3b3370574cf	3016	FILINFO fno;
mbed_official	5:b3b3370574cf	3017	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3018
mbed_official	5:b3b3370574cf	3019
mbed_official	5:b3b3370574cf	3020	*buff = 0;
mbed_official	5:b3b3370574cf	3021	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3022	res = find_volume(&dj.fs, (const TCHAR*)&buff, 0); / Get current volume */
mbed_official	5:b3b3370574cf	3023	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3024	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3025	i = len; /* Bottom of buffer (directory stack base) */
mbed_official	5:b3b3370574cf	3026	dj.sclust = dj.fs->cdir; /* Start to follow upper directory from current directory */
mbed_official	5:b3b3370574cf	3027	while ((ccl = dj.sclust) != 0) { /* Repeat while current directory is a sub-directory */
mbed_official	5:b3b3370574cf	3028	res = dir_sdi(&dj, 1); /* Get parent directory */
mbed_official	5:b3b3370574cf	3029	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	3030	res = dir_read(&dj, 0);
mbed_official	5:b3b3370574cf	3031	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	3032	dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent directory */
mbed_official	5:b3b3370574cf	3033	res = dir_sdi(&dj, 0);
mbed_official	5:b3b3370574cf	3034	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	3035	do { /* Find the entry links to the child directory */
mbed_official	5:b3b3370574cf	3036	res = dir_read(&dj, 0);
mbed_official	5:b3b3370574cf	3037	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	3038	if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
mbed_official	5:b3b3370574cf	3039	res = dir_next(&dj, 0);
mbed_official	5:b3b3370574cf	3040	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	3041	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
mbed_official	5:b3b3370574cf	3042	if (res != FR_OK) break;
emilmont	1:46ce1e16c870	3043	#if _USE_LFN
mbed_official	5:b3b3370574cf	3044	fno.lfname = buff;
mbed_official	5:b3b3370574cf	3045	fno.lfsize = i;
mbed_official	5:b3b3370574cf	3046	#endif
mbed_official	5:b3b3370574cf	3047	get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */
mbed_official	5:b3b3370574cf	3048	tp = fno.fname;
mbed_official	5:b3b3370574cf	3049	#if _USE_LFN
mbed_official	5:b3b3370574cf	3050	if (*buff) tp = buff;
emilmont	1:46ce1e16c870	3051	#endif
mbed_official	5:b3b3370574cf	3052	for (n = 0; tp[n]; n++) ;
mbed_official	5:b3b3370574cf	3053	if (i < n + 3) {
mbed_official	5:b3b3370574cf	3054	res = FR_NOT_ENOUGH_CORE; break;
mbed_official	5:b3b3370574cf	3055	}
mbed_official	5:b3b3370574cf	3056	while (n) buff[--i] = tp[--n];
mbed_official	5:b3b3370574cf	3057	buff[--i] = '/';
mbed_official	5:b3b3370574cf	3058	}
mbed_official	5:b3b3370574cf	3059	tp = buff;
mbed_official	5:b3b3370574cf	3060	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3061	#if _VOLUMES >= 2
mbed_official	5:b3b3370574cf	3062	tp++ = '0' + CurrVol; / Put drive number */
mbed_official	5:b3b3370574cf	3063	*tp++ = ':';
mbed_official	5:b3b3370574cf	3064	#endif
mbed_official	5:b3b3370574cf	3065	if (i == len) { /* Root-directory */
mbed_official	5:b3b3370574cf	3066	*tp++ = '/';
mbed_official	5:b3b3370574cf	3067	} else { /* Sub-directroy */
mbed_official	5:b3b3370574cf	3068	do /* Add stacked path str */
mbed_official	5:b3b3370574cf	3069	*tp++ = buff[i++];
mbed_official	5:b3b3370574cf	3070	while (i < len);
mbed_official	5:b3b3370574cf	3071	}
mbed_official	5:b3b3370574cf	3072	}
mbed_official	5:b3b3370574cf	3073	*tp = 0;
mbed_official	5:b3b3370574cf	3074	FREE_BUF();
mbed_official	5:b3b3370574cf	3075	}
mbed_official	5:b3b3370574cf	3076
mbed_official	5:b3b3370574cf	3077	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3078	}
emilmont	1:46ce1e16c870	3079	#endif /* _FS_RPATH >= 2 */
emilmont	1:46ce1e16c870	3080	#endif /* _FS_RPATH >= 1 */
emilmont	1:46ce1e16c870	3081
emilmont	1:46ce1e16c870	3082
emilmont	1:46ce1e16c870	3083
emilmont	1:46ce1e16c870	3084	#if _FS_MINIMIZE <= 2
emilmont	1:46ce1e16c870	3085	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3086	/* Seek File R/W Pointer */
emilmont	1:46ce1e16c870	3087	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3088
emilmont	1:46ce1e16c870	3089	FRESULT f_lseek (
mbed_official	5:b3b3370574cf	3090	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	3091	DWORD ofs /* File pointer from top of file */
emilmont	1:46ce1e16c870	3092	)
emilmont	1:46ce1e16c870	3093	{
mbed_official	5:b3b3370574cf	3094	FRESULT res;
mbed_official	5:b3b3370574cf	3095	DWORD clst, bcs, nsect, ifptr;
mbed_official	5:b3b3370574cf	3096	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	3097	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
mbed_official	5:b3b3370574cf	3098	#endif
mbed_official	5:b3b3370574cf	3099
mbed_official	5:b3b3370574cf	3100
mbed_official	5:b3b3370574cf	3101	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	3102	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	3103	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	3104	LEAVE_FF(fp->fs, (FRESULT)fp->err);
emilmont	1:46ce1e16c870	3105
emilmont	1:46ce1e16c870	3106	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	3107	if (fp->cltbl) { /* Fast seek */
mbed_official	5:b3b3370574cf	3108	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
mbed_official	5:b3b3370574cf	3109	tbl = fp->cltbl;
mbed_official	5:b3b3370574cf	3110	tlen = tbl++; ulen = 2; / Given table size and required table size */
mbed_official	5:b3b3370574cf	3111	cl = fp->sclust; /* Top of the chain */
mbed_official	5:b3b3370574cf	3112	if (cl) {
mbed_official	5:b3b3370574cf	3113	do {
mbed_official	5:b3b3370574cf	3114	/* Get a fragment */
mbed_official	5:b3b3370574cf	3115	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
mbed_official	5:b3b3370574cf	3116	do {
mbed_official	5:b3b3370574cf	3117	pcl = cl; ncl++;
mbed_official	5:b3b3370574cf	3118	cl = get_fat(fp->fs, cl);
mbed_official	5:b3b3370574cf	3119	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3120	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3121	} while (cl == pcl + 1);
mbed_official	5:b3b3370574cf	3122	if (ulen <= tlen) { /* Store the length and top of the fragment */
mbed_official	5:b3b3370574cf	3123	tbl++ = ncl; tbl++ = tcl;
mbed_official	5:b3b3370574cf	3124	}
mbed_official	5:b3b3370574cf	3125	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
mbed_official	5:b3b3370574cf	3126	}
mbed_official	5:b3b3370574cf	3127	fp->cltbl = ulen; / Number of items used */
mbed_official	5:b3b3370574cf	3128	if (ulen <= tlen)
mbed_official	5:b3b3370574cf	3129	tbl = 0; / Terminate table */
mbed_official	5:b3b3370574cf	3130	else
mbed_official	5:b3b3370574cf	3131	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
mbed_official	5:b3b3370574cf	3132
mbed_official	5:b3b3370574cf	3133	} else { /* Fast seek */
mbed_official	5:b3b3370574cf	3134	if (ofs > fp->fsize) /* Clip offset at the file size */
mbed_official	5:b3b3370574cf	3135	ofs = fp->fsize;
mbed_official	5:b3b3370574cf	3136	fp->fptr = ofs; /* Set file pointer */
mbed_official	5:b3b3370574cf	3137	if (ofs) {
mbed_official	5:b3b3370574cf	3138	fp->clust = clmt_clust(fp, ofs - 1);
mbed_official	5:b3b3370574cf	3139	dsc = clust2sect(fp->fs, fp->clust);
mbed_official	5:b3b3370574cf	3140	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3141	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
mbed_official	5:b3b3370574cf	3142	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
emilmont	1:46ce1e16c870	3143	#if !_FS_TINY
emilmont	1:46ce1e16c870	3144	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3145	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mbed_official	5:b3b3370574cf	3146	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	3147	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3148	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	3149	}
emilmont	1:46ce1e16c870	3150	#endif
mbed_official	5:b3b3370574cf	3151	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
mbed_official	5:b3b3370574cf	3152	ABORT(fp->fs, FR_DISK_ERR);
emilmont	1:46ce1e16c870	3153	#endif
mbed_official	5:b3b3370574cf	3154	fp->dsect = dsc;
mbed_official	5:b3b3370574cf	3155	}
mbed_official	5:b3b3370574cf	3156	}
mbed_official	5:b3b3370574cf	3157	}
mbed_official	5:b3b3370574cf	3158	} else
emilmont	1:46ce1e16c870	3159	#endif
emilmont	1:46ce1e16c870	3160
mbed_official	5:b3b3370574cf	3161	/* Normal Seek */
mbed_official	5:b3b3370574cf	3162	{
mbed_official	5:b3b3370574cf	3163	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
emilmont	1:46ce1e16c870	3164	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3165	&& !(fp->flag & FA_WRITE)
emilmont	1:46ce1e16c870	3166	#endif
mbed_official	5:b3b3370574cf	3167	) ofs = fp->fsize;
mbed_official	5:b3b3370574cf	3168
mbed_official	5:b3b3370574cf	3169	ifptr = fp->fptr;
mbed_official	5:b3b3370574cf	3170	fp->fptr = nsect = 0;
mbed_official	5:b3b3370574cf	3171	if (ofs) {
mbed_official	5:b3b3370574cf	3172	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
mbed_official	5:b3b3370574cf	3173	if (ifptr > 0 &&
mbed_official	5:b3b3370574cf	3174	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
mbed_official	5:b3b3370574cf	3175	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
mbed_official	5:b3b3370574cf	3176	ofs -= fp->fptr;
mbed_official	5:b3b3370574cf	3177	clst = fp->clust;
mbed_official	5:b3b3370574cf	3178	} else { /* When seek to back cluster, */
mbed_official	5:b3b3370574cf	3179	clst = fp->sclust; /* start from the first cluster */
emilmont	1:46ce1e16c870	3180	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3181	if (clst == 0) { /* If no cluster chain, create a new chain */
mbed_official	5:b3b3370574cf	3182	clst = create_chain(fp->fs, 0);
mbed_official	5:b3b3370574cf	3183	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3184	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3185	fp->sclust = clst;
mbed_official	5:b3b3370574cf	3186	}
emilmont	1:46ce1e16c870	3187	#endif
mbed_official	5:b3b3370574cf	3188	fp->clust = clst;
mbed_official	5:b3b3370574cf	3189	}
mbed_official	5:b3b3370574cf	3190	if (clst != 0) {
mbed_official	5:b3b3370574cf	3191	while (ofs > bcs) { /* Cluster following loop */
emilmont	1:46ce1e16c870	3192	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3193	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
mbed_official	5:b3b3370574cf	3194	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
mbed_official	5:b3b3370574cf	3195	if (clst == 0) { /* When disk gets full, clip file size */
mbed_official	5:b3b3370574cf	3196	ofs = bcs; break;
mbed_official	5:b3b3370574cf	3197	}
mbed_official	5:b3b3370574cf	3198	} else
emilmont	1:46ce1e16c870	3199	#endif
mbed_official	5:b3b3370574cf	3200	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
mbed_official	5:b3b3370574cf	3201	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3202	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3203	fp->clust = clst;
mbed_official	5:b3b3370574cf	3204	fp->fptr += bcs;
mbed_official	5:b3b3370574cf	3205	ofs -= bcs;
mbed_official	5:b3b3370574cf	3206	}
mbed_official	5:b3b3370574cf	3207	fp->fptr += ofs;
mbed_official	5:b3b3370574cf	3208	if (ofs % SS(fp->fs)) {
mbed_official	5:b3b3370574cf	3209	nsect = clust2sect(fp->fs, clst); /* Current sector */
mbed_official	5:b3b3370574cf	3210	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3211	nsect += ofs / SS(fp->fs);
mbed_official	5:b3b3370574cf	3212	}
mbed_official	5:b3b3370574cf	3213	}
mbed_official	5:b3b3370574cf	3214	}
mbed_official	5:b3b3370574cf	3215	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
emilmont	1:46ce1e16c870	3216	#if !_FS_TINY
emilmont	1:46ce1e16c870	3217	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3218	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mbed_official	5:b3b3370574cf	3219	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	3220	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3221	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	3222	}
emilmont	1:46ce1e16c870	3223	#endif
mbed_official	5:b3b3370574cf	3224	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
mbed_official	5:b3b3370574cf	3225	ABORT(fp->fs, FR_DISK_ERR);
emilmont	1:46ce1e16c870	3226	#endif
mbed_official	5:b3b3370574cf	3227	fp->dsect = nsect;
mbed_official	5:b3b3370574cf	3228	}
emilmont	1:46ce1e16c870	3229	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3230	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
mbed_official	5:b3b3370574cf	3231	fp->fsize = fp->fptr;
mbed_official	5:b3b3370574cf	3232	fp->flag \|= FA__WRITTEN;
mbed_official	5:b3b3370574cf	3233	}
emilmont	1:46ce1e16c870	3234	#endif
mbed_official	5:b3b3370574cf	3235	}
mbed_official	5:b3b3370574cf	3236
mbed_official	5:b3b3370574cf	3237	LEAVE_FF(fp->fs, res);
emilmont	1:46ce1e16c870	3238	}
emilmont	1:46ce1e16c870	3239
emilmont	1:46ce1e16c870	3240
emilmont	1:46ce1e16c870	3241
emilmont	1:46ce1e16c870	3242	#if _FS_MINIMIZE <= 1
emilmont	1:46ce1e16c870	3243	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3244	/* Create a Directory Object */
emilmont	1:46ce1e16c870	3245	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3246
emilmont	1:46ce1e16c870	3247	FRESULT f_opendir (
mbed_official	5:b3b3370574cf	3248	FATFS_DIR* dp, /* Pointer to directory object to create */
mbed_official	5:b3b3370574cf	3249	const TCHAR* path /* Pointer to the directory path */
emilmont	1:46ce1e16c870	3250	)
emilmont	1:46ce1e16c870	3251	{
mbed_official	5:b3b3370574cf	3252	FRESULT res;
mbed_official	5:b3b3370574cf	3253	FATFS* fs;
mbed_official	5:b3b3370574cf	3254	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3255
mbed_official	5:b3b3370574cf	3256
mbed_official	5:b3b3370574cf	3257	if (!dp) return FR_INVALID_OBJECT;
mbed_official	5:b3b3370574cf	3258
mbed_official	5:b3b3370574cf	3259	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3260	res = find_volume(&fs, &path, 0);
mbed_official	5:b3b3370574cf	3261	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3262	dp->fs = fs;
mbed_official	5:b3b3370574cf	3263	INIT_BUF(*dp);
mbed_official	5:b3b3370574cf	3264	res = follow_path(dp, path); /* Follow the path to the directory */
mbed_official	5:b3b3370574cf	3265	FREE_BUF();
mbed_official	5:b3b3370574cf	3266	if (res == FR_OK) { /* Follow completed */
mbed_official	6:a5fcdbf92056	3267	if (dp->dir) { /* It is not the origin directory itself */
mbed_official	6:a5fcdbf92056	3268	if (dp->dir[DIR_Attr] & AM_DIR) /* The object is a sub directory */
mbed_official	6:a5fcdbf92056	3269	dp->sclust = ld_clust(fs, dp->dir);
mbed_official	5:b3b3370574cf	3270	else /* The object is a file */
mbed_official	5:b3b3370574cf	3271	res = FR_NO_PATH;
mbed_official	5:b3b3370574cf	3272	}
mbed_official	5:b3b3370574cf	3273	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3274	dp->id = fs->id;
mbed_official	5:b3b3370574cf	3275	res = dir_sdi(dp, 0); /* Rewind directory */
mbed_official	5:b3b3370574cf	3276	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3277	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3278	if (dp->sclust) {
mbed_official	5:b3b3370574cf	3279	dp->lockid = inc_lock(dp, 0); /* Lock the sub directory */
mbed_official	5:b3b3370574cf	3280	if (!dp->lockid)
mbed_official	5:b3b3370574cf	3281	res = FR_TOO_MANY_OPEN_FILES;
mbed_official	5:b3b3370574cf	3282	} else {
mbed_official	5:b3b3370574cf	3283	dp->lockid = 0; /* Root directory need not to be locked */
mbed_official	5:b3b3370574cf	3284	}
mbed_official	5:b3b3370574cf	3285	}
mbed_official	5:b3b3370574cf	3286	#endif
mbed_official	5:b3b3370574cf	3287	}
mbed_official	5:b3b3370574cf	3288	}
mbed_official	5:b3b3370574cf	3289	if (res == FR_NO_FILE) res = FR_NO_PATH;
mbed_official	5:b3b3370574cf	3290	}
mbed_official	5:b3b3370574cf	3291	if (res != FR_OK) dp->fs = 0; /* Invalidate the directory object if function faild */
mbed_official	5:b3b3370574cf	3292
mbed_official	5:b3b3370574cf	3293	LEAVE_FF(fs, res);
mbed_official	5:b3b3370574cf	3294	}
mbed_official	5:b3b3370574cf	3295
mbed_official	5:b3b3370574cf	3296
mbed_official	5:b3b3370574cf	3297
mbed_official	5:b3b3370574cf	3298
mbed_official	5:b3b3370574cf	3299	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3300	/* Close Directory */
mbed_official	5:b3b3370574cf	3301	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3302
mbed_official	5:b3b3370574cf	3303	FRESULT f_closedir (
mbed_official	5:b3b3370574cf	3304	FATFS_DIR dp / Pointer to the directory object to be closed */
mbed_official	5:b3b3370574cf	3305	)
mbed_official	5:b3b3370574cf	3306	{
mbed_official	5:b3b3370574cf	3307	FRESULT res;
mbed_official	5:b3b3370574cf	3308
mbed_official	5:b3b3370574cf	3309
mbed_official	5:b3b3370574cf	3310	res = validate(dp);
mbed_official	5:b3b3370574cf	3311	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3312	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	3313	FATFS *fs = dp->fs;
mbed_official	5:b3b3370574cf	3314	#endif
mbed_official	5:b3b3370574cf	3315	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3316	if (dp->lockid) /* Decrement sub-directory open counter */
mbed_official	5:b3b3370574cf	3317	res = dec_lock(dp->lockid);
mbed_official	5:b3b3370574cf	3318	if (res == FR_OK)
mbed_official	5:b3b3370574cf	3319	#endif
mbed_official	5:b3b3370574cf	3320	dp->fs = 0; /* Invalidate directory object */
mbed_official	5:b3b3370574cf	3321	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	3322	unlock_fs(fs, FR_OK); /* Unlock volume */
mbed_official	5:b3b3370574cf	3323	#endif
mbed_official	5:b3b3370574cf	3324	}
mbed_official	5:b3b3370574cf	3325	return res;
emilmont	1:46ce1e16c870	3326	}
emilmont	1:46ce1e16c870	3327
emilmont	1:46ce1e16c870	3328
emilmont	1:46ce1e16c870	3329
emilmont	1:46ce1e16c870	3330
emilmont	1:46ce1e16c870	3331	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3332	/* Read Directory Entries in Sequence */
emilmont	1:46ce1e16c870	3333	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3334
emilmont	1:46ce1e16c870	3335	FRESULT f_readdir (
mbed_official	5:b3b3370574cf	3336	FATFS_DIR* dp, /* Pointer to the open directory object */
mbed_official	5:b3b3370574cf	3337	FILINFO* fno /* Pointer to file information to return */
emilmont	1:46ce1e16c870	3338	)
emilmont	1:46ce1e16c870	3339	{
mbed_official	5:b3b3370574cf	3340	FRESULT res;
mbed_official	5:b3b3370574cf	3341	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3342
mbed_official	5:b3b3370574cf	3343
mbed_official	5:b3b3370574cf	3344	res = validate(dp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	3345	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3346	if (!fno) {
mbed_official	5:b3b3370574cf	3347	res = dir_sdi(dp, 0); /* Rewind the directory object */
mbed_official	5:b3b3370574cf	3348	} else {
mbed_official	5:b3b3370574cf	3349	INIT_BUF(*dp);
mbed_official	5:b3b3370574cf	3350	res = dir_read(dp, 0); /* Read an item */
mbed_official	5:b3b3370574cf	3351	if (res == FR_NO_FILE) { /* Reached end of directory */
mbed_official	5:b3b3370574cf	3352	dp->sect = 0;
mbed_official	5:b3b3370574cf	3353	res = FR_OK;
mbed_official	5:b3b3370574cf	3354	}
mbed_official	5:b3b3370574cf	3355	if (res == FR_OK) { /* A valid entry is found */
mbed_official	5:b3b3370574cf	3356	get_fileinfo(dp, fno); /* Get the object information */
mbed_official	5:b3b3370574cf	3357	res = dir_next(dp, 0); /* Increment index for next */
mbed_official	5:b3b3370574cf	3358	if (res == FR_NO_FILE) {
mbed_official	5:b3b3370574cf	3359	dp->sect = 0;
mbed_official	5:b3b3370574cf	3360	res = FR_OK;
mbed_official	5:b3b3370574cf	3361	}
mbed_official	5:b3b3370574cf	3362	}
mbed_official	5:b3b3370574cf	3363	FREE_BUF();
mbed_official	5:b3b3370574cf	3364	}
mbed_official	5:b3b3370574cf	3365	}
mbed_official	5:b3b3370574cf	3366
mbed_official	5:b3b3370574cf	3367	LEAVE_FF(dp->fs, res);
emilmont	1:46ce1e16c870	3368	}
emilmont	1:46ce1e16c870	3369
emilmont	1:46ce1e16c870	3370
emilmont	1:46ce1e16c870	3371
mbed_official	5:b3b3370574cf	3372	#if _USE_FIND
mbed_official	5:b3b3370574cf	3373	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3374	/* Find next file */
mbed_official	5:b3b3370574cf	3375	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3376
mbed_official	5:b3b3370574cf	3377	FRESULT f_findnext (
mbed_official	5:b3b3370574cf	3378	FATFS_DIR* dp, /* Pointer to the open directory object */
mbed_official	5:b3b3370574cf	3379	FILINFO* fno /* Pointer to the file information structure */
mbed_official	5:b3b3370574cf	3380	)
mbed_official	5:b3b3370574cf	3381	{
mbed_official	5:b3b3370574cf	3382	FRESULT res;
mbed_official	5:b3b3370574cf	3383
mbed_official	5:b3b3370574cf	3384
mbed_official	5:b3b3370574cf	3385	for (;;) {
mbed_official	5:b3b3370574cf	3386	res = f_readdir(dp, fno); /* Get a directory item */
mbed_official	5:b3b3370574cf	3387	if (res != FR_OK \|\| !fno \|\| !fno->fname[0]) break; /* Terminate if any error or end of directory */
mbed_official	5:b3b3370574cf	3388	#if _USE_LFN
mbed_official	5:b3b3370574cf	3389	if (fno->lfname && pattern_matching(dp->pat, fno->lfname, 0, 0)) break; /* Test for LFN if exist */
mbed_official	5:b3b3370574cf	3390	#endif
mbed_official	5:b3b3370574cf	3391	if (pattern_matching(dp->pat, fno->fname, 0, 0)) break; /* Test for SFN */
mbed_official	5:b3b3370574cf	3392	}
mbed_official	5:b3b3370574cf	3393	return res;
mbed_official	5:b3b3370574cf	3394
mbed_official	5:b3b3370574cf	3395	}
mbed_official	5:b3b3370574cf	3396
mbed_official	5:b3b3370574cf	3397
mbed_official	5:b3b3370574cf	3398
mbed_official	5:b3b3370574cf	3399	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3400	/* Find first file */
mbed_official	5:b3b3370574cf	3401	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3402
mbed_official	5:b3b3370574cf	3403	FRESULT f_findfirst (
mbed_official	5:b3b3370574cf	3404	FATFS_DIR* dp, /* Pointer to the blank directory object */
mbed_official	5:b3b3370574cf	3405	FILINFO* fno, /* Pointer to the file information structure */
mbed_official	5:b3b3370574cf	3406	const TCHAR* path, /* Pointer to the directory to open */
mbed_official	5:b3b3370574cf	3407	const TCHAR* pattern /* Pointer to the matching pattern */
mbed_official	5:b3b3370574cf	3408	)
mbed_official	5:b3b3370574cf	3409	{
mbed_official	5:b3b3370574cf	3410	FRESULT res;
mbed_official	5:b3b3370574cf	3411
mbed_official	5:b3b3370574cf	3412
mbed_official	5:b3b3370574cf	3413	dp->pat = pattern; /* Save pointer to pattern string */
mbed_official	5:b3b3370574cf	3414	res = f_opendir(dp, path); /* Open the target directory */
mbed_official	5:b3b3370574cf	3415	if (res == FR_OK)
mbed_official	5:b3b3370574cf	3416	res = f_findnext(dp, fno); /* Find the first item */
mbed_official	5:b3b3370574cf	3417	return res;
mbed_official	5:b3b3370574cf	3418	}
mbed_official	5:b3b3370574cf	3419
mbed_official	5:b3b3370574cf	3420	#endif /* _USE_FIND */
mbed_official	5:b3b3370574cf	3421
mbed_official	5:b3b3370574cf	3422
mbed_official	5:b3b3370574cf	3423
emilmont	1:46ce1e16c870	3424	#if _FS_MINIMIZE == 0
emilmont	1:46ce1e16c870	3425	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3426	/* Get File Status */
emilmont	1:46ce1e16c870	3427	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3428
emilmont	1:46ce1e16c870	3429	FRESULT f_stat (
mbed_official	5:b3b3370574cf	3430	const TCHAR* path, /* Pointer to the file path */
mbed_official	5:b3b3370574cf	3431	FILINFO* fno /* Pointer to file information to return */
emilmont	1:46ce1e16c870	3432	)
emilmont	1:46ce1e16c870	3433	{
mbed_official	5:b3b3370574cf	3434	FRESULT res;
mbed_official	5:b3b3370574cf	3435	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3436	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3437
mbed_official	5:b3b3370574cf	3438
mbed_official	5:b3b3370574cf	3439	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3440	res = find_volume(&dj.fs, &path, 0);
mbed_official	5:b3b3370574cf	3441	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3442	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3443	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3444	if (res == FR_OK) { /* Follow completed */
mbed_official	6:a5fcdbf92056	3445	if (dj.dir) { /* Found an object */
mbed_official	5:b3b3370574cf	3446	if (fno) get_fileinfo(&dj, fno);
mbed_official	5:b3b3370574cf	3447	} else { /* It is root directory */
mbed_official	5:b3b3370574cf	3448	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3449	}
mbed_official	5:b3b3370574cf	3450	}
mbed_official	5:b3b3370574cf	3451	FREE_BUF();
mbed_official	5:b3b3370574cf	3452	}
mbed_official	5:b3b3370574cf	3453
mbed_official	5:b3b3370574cf	3454	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3455	}
emilmont	1:46ce1e16c870	3456
emilmont	1:46ce1e16c870	3457
emilmont	1:46ce1e16c870	3458
emilmont	1:46ce1e16c870	3459	#if !_FS_READONLY
emilmont	1:46ce1e16c870	3460	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3461	/* Get Number of Free Clusters */
emilmont	1:46ce1e16c870	3462	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3463
emilmont	1:46ce1e16c870	3464	FRESULT f_getfree (
mbed_official	5:b3b3370574cf	3465	const TCHAR* path, /* Path name of the logical drive number */
mbed_official	5:b3b3370574cf	3466	DWORD* nclst, /* Pointer to a variable to return number of free clusters */
mbed_official	5:b3b3370574cf	3467	FATFS** fatfs /* Pointer to return pointer to corresponding file system object */
emilmont	1:46ce1e16c870	3468	)
emilmont	1:46ce1e16c870	3469	{
mbed_official	5:b3b3370574cf	3470	FRESULT res;
mbed_official	5:b3b3370574cf	3471	FATFS *fs;
mbed_official	6:a5fcdbf92056	3472	DWORD nfree, clst, sect, stat;
mbed_official	5:b3b3370574cf	3473	UINT i;
mbed_official	5:b3b3370574cf	3474	BYTE fat, *p;
mbed_official	5:b3b3370574cf	3475
mbed_official	5:b3b3370574cf	3476
mbed_official	5:b3b3370574cf	3477	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3478	res = find_volume(fatfs, &path, 0);
mbed_official	5:b3b3370574cf	3479	fs = *fatfs;
mbed_official	5:b3b3370574cf	3480	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3481	/* If free_clust is valid, return it without full cluster scan */
mbed_official	5:b3b3370574cf	3482	if (fs->free_clust <= fs->n_fatent - 2) {
mbed_official	5:b3b3370574cf	3483	*nclst = fs->free_clust;
mbed_official	5:b3b3370574cf	3484	} else {
mbed_official	5:b3b3370574cf	3485	/* Get number of free clusters */
mbed_official	5:b3b3370574cf	3486	fat = fs->fs_type;
mbed_official	6:a5fcdbf92056	3487	nfree = 0;
mbed_official	6:a5fcdbf92056	3488	if (fat == FS_FAT12) { /* Sector unalighed entries: Search FAT via regular routine. */
mbed_official	5:b3b3370574cf	3489	clst = 2;
mbed_official	5:b3b3370574cf	3490	do {
mbed_official	5:b3b3370574cf	3491	stat = get_fat(fs, clst);
mbed_official	5:b3b3370574cf	3492	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
mbed_official	5:b3b3370574cf	3493	if (stat == 1) { res = FR_INT_ERR; break; }
mbed_official	6:a5fcdbf92056	3494	if (stat == 0) nfree++;
mbed_official	5:b3b3370574cf	3495	} while (++clst < fs->n_fatent);
mbed_official	6:a5fcdbf92056	3496	} else { /* Sector alighed entries: Accelerate the FAT search. */
mbed_official	6:a5fcdbf92056	3497	clst = fs->n_fatent; sect = fs->fatbase;
mbed_official	5:b3b3370574cf	3498	i = 0; p = 0;
mbed_official	5:b3b3370574cf	3499	do {
mbed_official	5:b3b3370574cf	3500	if (!i) {
mbed_official	5:b3b3370574cf	3501	res = move_window(fs, sect++);
mbed_official	5:b3b3370574cf	3502	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	3503	p = fs->win;
mbed_official	5:b3b3370574cf	3504	i = SS(fs);
mbed_official	5:b3b3370574cf	3505	}
mbed_official	5:b3b3370574cf	3506	if (fat == FS_FAT16) {
mbed_official	6:a5fcdbf92056	3507	if (LD_WORD(p) == 0) nfree++;
mbed_official	5:b3b3370574cf	3508	p += 2; i -= 2;
mbed_official	5:b3b3370574cf	3509	} else {
mbed_official	6:a5fcdbf92056	3510	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) nfree++;
mbed_official	5:b3b3370574cf	3511	p += 4; i -= 4;
mbed_official	5:b3b3370574cf	3512	}
mbed_official	5:b3b3370574cf	3513	} while (--clst);
mbed_official	5:b3b3370574cf	3514	}
mbed_official	6:a5fcdbf92056	3515	fs->free_clust = nfree; /* free_clust is valid */
mbed_official	6:a5fcdbf92056	3516	fs->fsi_flag \|= 1; /* FSInfo is to be updated */
mbed_official	6:a5fcdbf92056	3517	nclst = nfree; / Return the free clusters */
mbed_official	5:b3b3370574cf	3518	}
mbed_official	5:b3b3370574cf	3519	}
mbed_official	5:b3b3370574cf	3520	LEAVE_FF(fs, res);
emilmont	1:46ce1e16c870	3521	}
emilmont	1:46ce1e16c870	3522
emilmont	1:46ce1e16c870	3523
emilmont	1:46ce1e16c870	3524
emilmont	1:46ce1e16c870	3525
emilmont	1:46ce1e16c870	3526	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3527	/* Truncate File */
emilmont	1:46ce1e16c870	3528	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3529
emilmont	1:46ce1e16c870	3530	FRESULT f_truncate (
mbed_official	5:b3b3370574cf	3531	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	3532	)
emilmont	1:46ce1e16c870	3533	{
mbed_official	5:b3b3370574cf	3534	FRESULT res;
mbed_official	5:b3b3370574cf	3535	DWORD ncl;
mbed_official	5:b3b3370574cf	3536
mbed_official	5:b3b3370574cf	3537
mbed_official	5:b3b3370574cf	3538	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	3539	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3540	if (fp->err) { /* Check error */
mbed_official	5:b3b3370574cf	3541	res = (FRESULT)fp->err;
mbed_official	5:b3b3370574cf	3542	} else {
mbed_official	5:b3b3370574cf	3543	if (!(fp->flag & FA_WRITE)) /* Check access mode */
mbed_official	5:b3b3370574cf	3544	res = FR_DENIED;
mbed_official	5:b3b3370574cf	3545	}
mbed_official	5:b3b3370574cf	3546	}
mbed_official	5:b3b3370574cf	3547	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3548	if (fp->fsize > fp->fptr) {
mbed_official	5:b3b3370574cf	3549	fp->fsize = fp->fptr; /* Set file size to current R/W point */
mbed_official	5:b3b3370574cf	3550	fp->flag \|= FA__WRITTEN;
mbed_official	5:b3b3370574cf	3551	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
mbed_official	5:b3b3370574cf	3552	res = remove_chain(fp->fs, fp->sclust);
mbed_official	5:b3b3370574cf	3553	fp->sclust = 0;
mbed_official	5:b3b3370574cf	3554	} else { /* When truncate a part of the file, remove remaining clusters */
mbed_official	5:b3b3370574cf	3555	ncl = get_fat(fp->fs, fp->clust);
mbed_official	5:b3b3370574cf	3556	res = FR_OK;
mbed_official	5:b3b3370574cf	3557	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	3558	if (ncl == 1) res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	3559	if (res == FR_OK && ncl < fp->fs->n_fatent) {
mbed_official	5:b3b3370574cf	3560	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
mbed_official	5:b3b3370574cf	3561	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
mbed_official	5:b3b3370574cf	3562	}
mbed_official	5:b3b3370574cf	3563	}
mbed_official	5:b3b3370574cf	3564	#if !_FS_TINY
mbed_official	5:b3b3370574cf	3565	if (res == FR_OK && (fp->flag & FA__DIRTY)) {
mbed_official	5:b3b3370574cf	3566	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	3567	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	3568	else
mbed_official	5:b3b3370574cf	3569	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	3570	}
mbed_official	5:b3b3370574cf	3571	#endif
mbed_official	5:b3b3370574cf	3572	}
mbed_official	5:b3b3370574cf	3573	if (res != FR_OK) fp->err = (FRESULT)res;
mbed_official	5:b3b3370574cf	3574	}
mbed_official	5:b3b3370574cf	3575
mbed_official	5:b3b3370574cf	3576	LEAVE_FF(fp->fs, res);
emilmont	1:46ce1e16c870	3577	}
emilmont	1:46ce1e16c870	3578
emilmont	1:46ce1e16c870	3579
emilmont	1:46ce1e16c870	3580
emilmont	1:46ce1e16c870	3581
emilmont	1:46ce1e16c870	3582	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3583	/* Delete a File or Directory */
emilmont	1:46ce1e16c870	3584	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3585
emilmont	1:46ce1e16c870	3586	FRESULT f_unlink (
mbed_official	5:b3b3370574cf	3587	const TCHAR* path /* Pointer to the file or directory path */
emilmont	1:46ce1e16c870	3588	)
emilmont	1:46ce1e16c870	3589	{
mbed_official	5:b3b3370574cf	3590	FRESULT res;
mbed_official	5:b3b3370574cf	3591	FATFS_DIR dj, sdj;
mbed_official	6:a5fcdbf92056	3592	BYTE *dir;
mbed_official	5:b3b3370574cf	3593	DWORD dclst = 0;
mbed_official	5:b3b3370574cf	3594	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3595
WiredHome	8:f08059355141	3596	INFO("f_unlink(%s)", path);
mbed_official	5:b3b3370574cf	3597	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3598	res = find_volume(&dj.fs, &path, 1);
mbed_official	5:b3b3370574cf	3599	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3600	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3601	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3602	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3603	res = FR_INVALID_NAME; /* Cannot remove dot entry */
emilmont	1:46ce1e16c870	3604	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3605	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open object */
emilmont	1:46ce1e16c870	3606	#endif
mbed_official	5:b3b3370574cf	3607	if (res == FR_OK) { /* The object is accessible */
mbed_official	6:a5fcdbf92056	3608	dir = dj.dir;
mbed_official	6:a5fcdbf92056	3609	if (!dir) {
mbed_official	5:b3b3370574cf	3610	res = FR_INVALID_NAME; /* Cannot remove the origin directory */
mbed_official	5:b3b3370574cf	3611	} else {
mbed_official	6:a5fcdbf92056	3612	if (dir[DIR_Attr] & AM_RDO)
mbed_official	5:b3b3370574cf	3613	res = FR_DENIED; /* Cannot remove R/O object */
mbed_official	5:b3b3370574cf	3614	}
mbed_official	5:b3b3370574cf	3615	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	3616	dclst = ld_clust(dj.fs, dir);
mbed_official	6:a5fcdbf92056	3617	if (dclst && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-directory ? */
emilmont	1:46ce1e16c870	3618	#if _FS_RPATH
mbed_official	5:b3b3370574cf	3619	if (dclst == dj.fs->cdir) { /* Is it the current directory? */
mbed_official	5:b3b3370574cf	3620	res = FR_DENIED;
mbed_official	5:b3b3370574cf	3621	} else
emilmont	1:46ce1e16c870	3622	#endif
mbed_official	5:b3b3370574cf	3623	{
mbed_official	5:b3b3370574cf	3624	mem_cpy(&sdj, &dj, sizeof (FATFS_DIR)); /* Open the sub-directory */
mbed_official	5:b3b3370574cf	3625	sdj.sclust = dclst;
mbed_official	5:b3b3370574cf	3626	res = dir_sdi(&sdj, 2);
mbed_official	5:b3b3370574cf	3627	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3628	res = dir_read(&sdj, 0); /* Read an item (excluding dot entries) */
mbed_official	5:b3b3370574cf	3629	if (res == FR_OK) res = FR_DENIED; /* Not empty? (cannot remove) */
mbed_official	5:b3b3370574cf	3630	if (res == FR_NO_FILE) res = FR_OK; /* Empty? (can remove) */
mbed_official	5:b3b3370574cf	3631	}
mbed_official	5:b3b3370574cf	3632	}
mbed_official	5:b3b3370574cf	3633	}
mbed_official	5:b3b3370574cf	3634	}
mbed_official	5:b3b3370574cf	3635	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3636	res = dir_remove(&dj); /* Remove the directory entry */
mbed_official	5:b3b3370574cf	3637	if (res == FR_OK && dclst) /* Remove the cluster chain if exist */
mbed_official	5:b3b3370574cf	3638	res = remove_chain(dj.fs, dclst);
mbed_official	5:b3b3370574cf	3639	if (res == FR_OK) res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3640	}
mbed_official	5:b3b3370574cf	3641	}
mbed_official	5:b3b3370574cf	3642	FREE_BUF();
mbed_official	5:b3b3370574cf	3643	}
mbed_official	5:b3b3370574cf	3644
mbed_official	5:b3b3370574cf	3645	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3646	}
emilmont	1:46ce1e16c870	3647
emilmont	1:46ce1e16c870	3648
emilmont	1:46ce1e16c870	3649
emilmont	1:46ce1e16c870	3650
emilmont	1:46ce1e16c870	3651	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3652	/* Create a Directory */
emilmont	1:46ce1e16c870	3653	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3654
emilmont	1:46ce1e16c870	3655	FRESULT f_mkdir (
mbed_official	5:b3b3370574cf	3656	const TCHAR* path /* Pointer to the directory path */
emilmont	1:46ce1e16c870	3657	)
emilmont	1:46ce1e16c870	3658	{
mbed_official	5:b3b3370574cf	3659	FRESULT res;
mbed_official	5:b3b3370574cf	3660	FATFS_DIR dj;
mbed_official	6:a5fcdbf92056	3661	BYTE *dir, n;
mbed_official	5:b3b3370574cf	3662	DWORD dsc, dcl, pcl, tm = GET_FATTIME();
mbed_official	5:b3b3370574cf	3663	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3664
mbed_official	5:b3b3370574cf	3665
mbed_official	5:b3b3370574cf	3666	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3667	res = find_volume(&dj.fs, &path, 1);
mbed_official	5:b3b3370574cf	3668	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3669	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3670	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3671	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
mbed_official	5:b3b3370574cf	3672	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3673	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3674	if (res == FR_NO_FILE) { /* Can create a new directory */
mbed_official	5:b3b3370574cf	3675	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
mbed_official	5:b3b3370574cf	3676	res = FR_OK;
mbed_official	5:b3b3370574cf	3677	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
mbed_official	5:b3b3370574cf	3678	if (dcl == 1) res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	3679	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	3680	if (res == FR_OK) /* Flush FAT */
mbed_official	5:b3b3370574cf	3681	res = sync_window(dj.fs);
mbed_official	5:b3b3370574cf	3682	if (res == FR_OK) { /* Initialize the new directory table */
mbed_official	5:b3b3370574cf	3683	dsc = clust2sect(dj.fs, dcl);
mbed_official	6:a5fcdbf92056	3684	dir = dj.fs->win;
mbed_official	6:a5fcdbf92056	3685	mem_set(dir, 0, SS(dj.fs));
mbed_official	6:a5fcdbf92056	3686	mem_set(dir + DIR_Name, ' ', 11); /* Create "." entry */
mbed_official	6:a5fcdbf92056	3687	dir[DIR_Name] = '.';
mbed_official	6:a5fcdbf92056	3688	dir[DIR_Attr] = AM_DIR;
mbed_official	6:a5fcdbf92056	3689	ST_DWORD(dir + DIR_WrtTime, tm);
mbed_official	6:a5fcdbf92056	3690	st_clust(dir, dcl);
mbed_official	6:a5fcdbf92056	3691	mem_cpy(dir + SZ_DIRE, dir, SZ_DIRE); /* Create ".." entry */
mbed_official	6:a5fcdbf92056	3692	dir[SZ_DIRE + 1] = '.'; pcl = dj.sclust;
mbed_official	5:b3b3370574cf	3693	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
mbed_official	5:b3b3370574cf	3694	pcl = 0;
mbed_official	6:a5fcdbf92056	3695	st_clust(dir + SZ_DIRE, pcl);
mbed_official	5:b3b3370574cf	3696	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
mbed_official	5:b3b3370574cf	3697	dj.fs->winsect = dsc++;
mbed_official	5:b3b3370574cf	3698	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3699	res = sync_window(dj.fs);
mbed_official	5:b3b3370574cf	3700	if (res != FR_OK) break;
mbed_official	6:a5fcdbf92056	3701	mem_set(dir, 0, SS(dj.fs));
mbed_official	5:b3b3370574cf	3702	}
mbed_official	5:b3b3370574cf	3703	}
mbed_official	5:b3b3370574cf	3704	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
mbed_official	5:b3b3370574cf	3705	if (res != FR_OK) {
mbed_official	5:b3b3370574cf	3706	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
mbed_official	5:b3b3370574cf	3707	} else {
mbed_official	6:a5fcdbf92056	3708	dir = dj.dir;
mbed_official	6:a5fcdbf92056	3709	dir[DIR_Attr] = AM_DIR; /* Attribute */
mbed_official	6:a5fcdbf92056	3710	ST_DWORD(dir + DIR_WrtTime, tm); /* Created time */
mbed_official	6:a5fcdbf92056	3711	st_clust(dir, dcl); /* Table start cluster */
mbed_official	5:b3b3370574cf	3712	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3713	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3714	}
mbed_official	5:b3b3370574cf	3715	}
mbed_official	5:b3b3370574cf	3716	FREE_BUF();
mbed_official	5:b3b3370574cf	3717	}
mbed_official	5:b3b3370574cf	3718
mbed_official	5:b3b3370574cf	3719	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3720	}
emilmont	1:46ce1e16c870	3721
emilmont	1:46ce1e16c870	3722
emilmont	1:46ce1e16c870	3723
emilmont	1:46ce1e16c870	3724
emilmont	1:46ce1e16c870	3725	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3726	/* Change Attribute */
emilmont	1:46ce1e16c870	3727	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3728
emilmont	1:46ce1e16c870	3729	FRESULT f_chmod (
mbed_official	5:b3b3370574cf	3730	const TCHAR* path, /* Pointer to the file path */
mbed_official	5:b3b3370574cf	3731	BYTE attr, /* Attribute bits */
mbed_official	5:b3b3370574cf	3732	BYTE mask /* Attribute mask to change */
emilmont	1:46ce1e16c870	3733	)
emilmont	1:46ce1e16c870	3734	{
mbed_official	5:b3b3370574cf	3735	FRESULT res;
mbed_official	5:b3b3370574cf	3736	FATFS_DIR dj;
mbed_official	6:a5fcdbf92056	3737	BYTE *dir;
mbed_official	5:b3b3370574cf	3738	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3739
mbed_official	5:b3b3370574cf	3740
mbed_official	6:a5fcdbf92056	3741	res = find_volume(&dj.fs, &path, 1); /* Get logical drive number */
mbed_official	5:b3b3370574cf	3742	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3743	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3744	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3745	FREE_BUF();
mbed_official	5:b3b3370574cf	3746	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3747	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3748	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	3749	dir = dj.dir;
mbed_official	6:a5fcdbf92056	3750	if (!dir) { /* Is it a root directory? */
mbed_official	5:b3b3370574cf	3751	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3752	} else { /* File or sub directory */
mbed_official	5:b3b3370574cf	3753	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
mbed_official	6:a5fcdbf92056	3754	dir[DIR_Attr] = (attr & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
mbed_official	5:b3b3370574cf	3755	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3756	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3757	}
mbed_official	5:b3b3370574cf	3758	}
mbed_official	5:b3b3370574cf	3759	}
mbed_official	5:b3b3370574cf	3760
mbed_official	5:b3b3370574cf	3761	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3762	}
emilmont	1:46ce1e16c870	3763
emilmont	1:46ce1e16c870	3764
emilmont	1:46ce1e16c870	3765
emilmont	1:46ce1e16c870	3766
emilmont	1:46ce1e16c870	3767	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3768	/* Rename File/Directory */
emilmont	1:46ce1e16c870	3769	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3770
emilmont	1:46ce1e16c870	3771	FRESULT f_rename (
mbed_official	5:b3b3370574cf	3772	const TCHAR* path_old, /* Pointer to the object to be renamed */
mbed_official	5:b3b3370574cf	3773	const TCHAR* path_new /* Pointer to the new name */
emilmont	1:46ce1e16c870	3774	)
emilmont	1:46ce1e16c870	3775	{
mbed_official	5:b3b3370574cf	3776	FRESULT res;
mbed_official	5:b3b3370574cf	3777	FATFS_DIR djo, djn;
mbed_official	6:a5fcdbf92056	3778	BYTE buf[21], *dir;
mbed_official	5:b3b3370574cf	3779	DWORD dw;
mbed_official	5:b3b3370574cf	3780	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3781
mbed_official	5:b3b3370574cf	3782
mbed_official	5:b3b3370574cf	3783	/* Get logical drive number of the source object */
mbed_official	5:b3b3370574cf	3784	res = find_volume(&djo.fs, &path_old, 1);
mbed_official	5:b3b3370574cf	3785	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3786	djn.fs = djo.fs;
mbed_official	5:b3b3370574cf	3787	INIT_BUF(djo);
mbed_official	5:b3b3370574cf	3788	res = follow_path(&djo, path_old); /* Check old object */
mbed_official	5:b3b3370574cf	3789	if (_FS_RPATH && res == FR_OK && (djo.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3790	res = FR_INVALID_NAME;
emilmont	1:46ce1e16c870	3791	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3792	if (res == FR_OK) res = chk_lock(&djo, 2);
emilmont	1:46ce1e16c870	3793	#endif
mbed_official	5:b3b3370574cf	3794	if (res == FR_OK) { /* Old object is found */
mbed_official	6:a5fcdbf92056	3795	if (!djo.dir) { /* Is root dir? */
mbed_official	5:b3b3370574cf	3796	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	3797	} else {
mbed_official	6:a5fcdbf92056	3798	mem_cpy(buf, djo.dir + DIR_Attr, 21); /* Save information about object except name */
mbed_official	5:b3b3370574cf	3799	mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Duplicate the directory object */
mbed_official	5:b3b3370574cf	3800	if (get_ldnumber(&path_new) >= 0) /* Snip drive number off and ignore it */
mbed_official	5:b3b3370574cf	3801	res = follow_path(&djn, path_new); /* and make sure if new object name is not conflicting */
mbed_official	5:b3b3370574cf	3802	else
mbed_official	5:b3b3370574cf	3803	res = FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	3804	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
mbed_official	5:b3b3370574cf	3805	if (res == FR_NO_FILE) { /* It is a valid path and no name collision */
mbed_official	5:b3b3370574cf	3806	res = dir_register(&djn); /* Register the new entry */
mbed_official	5:b3b3370574cf	3807	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3808	/* Start of critical section where any interruption can cause a cross-link */
mbed_official	6:a5fcdbf92056	3809	dir = djn.dir; /* Copy information about object except name */
mbed_official	6:a5fcdbf92056	3810	mem_cpy(dir + 13, buf + 2, 19);
mbed_official	6:a5fcdbf92056	3811	dir[DIR_Attr] = buf[0] \| AM_ARC;
mbed_official	5:b3b3370574cf	3812	djo.fs->wflag = 1;
mbed_official	6:a5fcdbf92056	3813	if ((dir[DIR_Attr] & AM_DIR) && djo.sclust != djn.sclust) { /* Update .. entry in the sub-directory if needed */
mbed_official	6:a5fcdbf92056	3814	dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
mbed_official	5:b3b3370574cf	3815	if (!dw) {
mbed_official	5:b3b3370574cf	3816	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	3817	} else {
mbed_official	5:b3b3370574cf	3818	res = move_window(djo.fs, dw);
mbed_official	6:a5fcdbf92056	3819	dir = djo.fs->win + SZ_DIRE * 1; /* Ptr to .. entry */
mbed_official	6:a5fcdbf92056	3820	if (res == FR_OK && dir[1] == '.') {
mbed_official	6:a5fcdbf92056	3821	st_clust(dir, djn.sclust);
mbed_official	5:b3b3370574cf	3822	djo.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3823	}
mbed_official	5:b3b3370574cf	3824	}
mbed_official	5:b3b3370574cf	3825	}
mbed_official	5:b3b3370574cf	3826	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3827	res = dir_remove(&djo); /* Remove old entry */
mbed_official	5:b3b3370574cf	3828	if (res == FR_OK)
mbed_official	5:b3b3370574cf	3829	res = sync_fs(djo.fs);
mbed_official	5:b3b3370574cf	3830	}
mbed_official	5:b3b3370574cf	3831	/* End of critical section */
mbed_official	5:b3b3370574cf	3832	}
mbed_official	5:b3b3370574cf	3833	}
mbed_official	5:b3b3370574cf	3834	}
mbed_official	5:b3b3370574cf	3835	}
mbed_official	5:b3b3370574cf	3836	FREE_BUF();
mbed_official	5:b3b3370574cf	3837	}
mbed_official	5:b3b3370574cf	3838
mbed_official	5:b3b3370574cf	3839	LEAVE_FF(djo.fs, res);
mbed_official	5:b3b3370574cf	3840	}
mbed_official	5:b3b3370574cf	3841
mbed_official	5:b3b3370574cf	3842
mbed_official	5:b3b3370574cf	3843
mbed_official	5:b3b3370574cf	3844
mbed_official	5:b3b3370574cf	3845	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3846	/* Change Timestamp */
mbed_official	5:b3b3370574cf	3847	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3848
mbed_official	5:b3b3370574cf	3849	FRESULT f_utime (
mbed_official	5:b3b3370574cf	3850	const TCHAR* path, /* Pointer to the file/directory name */
mbed_official	5:b3b3370574cf	3851	const FILINFO* fno /* Pointer to the time stamp to be set */
mbed_official	5:b3b3370574cf	3852	)
mbed_official	5:b3b3370574cf	3853	{
mbed_official	5:b3b3370574cf	3854	FRESULT res;
mbed_official	5:b3b3370574cf	3855	FATFS_DIR dj;
mbed_official	6:a5fcdbf92056	3856	BYTE *dir;
mbed_official	5:b3b3370574cf	3857	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3858
mbed_official	5:b3b3370574cf	3859
mbed_official	5:b3b3370574cf	3860	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3861	res = find_volume(&dj.fs, &path, 1);
mbed_official	5:b3b3370574cf	3862	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3863	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3864	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3865	FREE_BUF();
mbed_official	5:b3b3370574cf	3866	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3867	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3868	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	3869	dir = dj.dir;
mbed_official	6:a5fcdbf92056	3870	if (!dir) { /* Root directory */
mbed_official	5:b3b3370574cf	3871	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3872	} else { /* File or sub-directory */
mbed_official	6:a5fcdbf92056	3873	ST_WORD(dir + DIR_WrtTime, fno->ftime);
mbed_official	6:a5fcdbf92056	3874	ST_WORD(dir + DIR_WrtDate, fno->fdate);
mbed_official	5:b3b3370574cf	3875	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3876	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3877	}
mbed_official	5:b3b3370574cf	3878	}
mbed_official	5:b3b3370574cf	3879	}
mbed_official	5:b3b3370574cf	3880
mbed_official	5:b3b3370574cf	3881	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3882	}
emilmont	1:46ce1e16c870	3883
emilmont	1:46ce1e16c870	3884	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	3885	#endif /* _FS_MINIMIZE == 0 */
emilmont	1:46ce1e16c870	3886	#endif /* _FS_MINIMIZE <= 1 */
emilmont	1:46ce1e16c870	3887	#endif /* _FS_MINIMIZE <= 2 */
emilmont	1:46ce1e16c870	3888
emilmont	1:46ce1e16c870	3889
emilmont	1:46ce1e16c870	3890
mbed_official	5:b3b3370574cf	3891
mbed_official	5:b3b3370574cf	3892	#if _USE_LABEL
mbed_official	5:b3b3370574cf	3893	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3894	/* Get volume label */
mbed_official	5:b3b3370574cf	3895	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3896
mbed_official	5:b3b3370574cf	3897	FRESULT f_getlabel (
mbed_official	5:b3b3370574cf	3898	const TCHAR* path, /* Path name of the logical drive number */
mbed_official	5:b3b3370574cf	3899	TCHAR* label, /* Pointer to a buffer to return the volume label */
mbed_official	5:b3b3370574cf	3900	DWORD* vsn /* Pointer to a variable to return the volume serial number */
mbed_official	5:b3b3370574cf	3901	)
mbed_official	5:b3b3370574cf	3902	{
mbed_official	5:b3b3370574cf	3903	FRESULT res;
mbed_official	5:b3b3370574cf	3904	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3905	UINT i, j;
mbed_official	5:b3b3370574cf	3906	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	3907	WCHAR w;
mbed_official	5:b3b3370574cf	3908	#endif
mbed_official	5:b3b3370574cf	3909
mbed_official	5:b3b3370574cf	3910
mbed_official	5:b3b3370574cf	3911	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3912	res = find_volume(&dj.fs, &path, 0);
mbed_official	5:b3b3370574cf	3913
mbed_official	5:b3b3370574cf	3914	/* Get volume label */
mbed_official	5:b3b3370574cf	3915	if (res == FR_OK && label) {
mbed_official	5:b3b3370574cf	3916	dj.sclust = 0; /* Open root directory */
mbed_official	5:b3b3370574cf	3917	res = dir_sdi(&dj, 0);
mbed_official	5:b3b3370574cf	3918	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3919	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
mbed_official	5:b3b3370574cf	3920	if (res == FR_OK) { /* A volume label is exist */
mbed_official	5:b3b3370574cf	3921	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	3922	i = j = 0;
mbed_official	5:b3b3370574cf	3923	do {
mbed_official	6:a5fcdbf92056	3924	w = (i < 11) ? dj.dir[i++] : ' ';
mbed_official	6:a5fcdbf92056	3925	if (IsDBCS1(w) && i < 11 && IsDBCS2(dj.dir[i]))
mbed_official	6:a5fcdbf92056	3926	w = w << 8 \| dj.dir[i++];
mbed_official	5:b3b3370574cf	3927	label[j++] = ff_convert(w, 1); /* OEM -> Unicode */
mbed_official	5:b3b3370574cf	3928	} while (j < 11);
mbed_official	5:b3b3370574cf	3929	#else
mbed_official	6:a5fcdbf92056	3930	mem_cpy(label, dj.dir, 11);
mbed_official	5:b3b3370574cf	3931	#endif
mbed_official	5:b3b3370574cf	3932	j = 11;
mbed_official	5:b3b3370574cf	3933	do {
mbed_official	5:b3b3370574cf	3934	label[j] = 0;
mbed_official	5:b3b3370574cf	3935	if (!j) break;
mbed_official	5:b3b3370574cf	3936	} while (label[--j] == ' ');
mbed_official	5:b3b3370574cf	3937	}
mbed_official	5:b3b3370574cf	3938	if (res == FR_NO_FILE) { /* No label, return nul string */
mbed_official	5:b3b3370574cf	3939	label[0] = 0;
mbed_official	5:b3b3370574cf	3940	res = FR_OK;
mbed_official	5:b3b3370574cf	3941	}
mbed_official	5:b3b3370574cf	3942	}
mbed_official	5:b3b3370574cf	3943	}
mbed_official	5:b3b3370574cf	3944
mbed_official	5:b3b3370574cf	3945	/* Get volume serial number */
mbed_official	5:b3b3370574cf	3946	if (res == FR_OK && vsn) {
mbed_official	5:b3b3370574cf	3947	res = move_window(dj.fs, dj.fs->volbase);
mbed_official	5:b3b3370574cf	3948	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3949	i = dj.fs->fs_type == FS_FAT32 ? BS_VolID32 : BS_VolID;
mbed_official	5:b3b3370574cf	3950	*vsn = LD_DWORD(&dj.fs->win[i]);
mbed_official	5:b3b3370574cf	3951	}
mbed_official	5:b3b3370574cf	3952	}
mbed_official	5:b3b3370574cf	3953
mbed_official	5:b3b3370574cf	3954	LEAVE_FF(dj.fs, res);
mbed_official	5:b3b3370574cf	3955	}
mbed_official	5:b3b3370574cf	3956
mbed_official	5:b3b3370574cf	3957
mbed_official	5:b3b3370574cf	3958
mbed_official	5:b3b3370574cf	3959	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3960	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3961	/* Set volume label */
mbed_official	5:b3b3370574cf	3962	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3963
mbed_official	5:b3b3370574cf	3964	FRESULT f_setlabel (
mbed_official	5:b3b3370574cf	3965	const TCHAR* label /* Pointer to the volume label to set */
mbed_official	5:b3b3370574cf	3966	)
mbed_official	5:b3b3370574cf	3967	{
mbed_official	5:b3b3370574cf	3968	FRESULT res;
mbed_official	5:b3b3370574cf	3969	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3970	BYTE vn[11];
mbed_official	5:b3b3370574cf	3971	UINT i, j, sl;
mbed_official	5:b3b3370574cf	3972	WCHAR w;
mbed_official	5:b3b3370574cf	3973	DWORD tm;
mbed_official	5:b3b3370574cf	3974
mbed_official	5:b3b3370574cf	3975
mbed_official	5:b3b3370574cf	3976	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3977	res = find_volume(&dj.fs, &label, 1);
mbed_official	5:b3b3370574cf	3978	if (res) LEAVE_FF(dj.fs, res);
mbed_official	5:b3b3370574cf	3979
mbed_official	5:b3b3370574cf	3980	/* Create a volume label in directory form */
mbed_official	5:b3b3370574cf	3981	vn[0] = 0;
mbed_official	5:b3b3370574cf	3982	for (sl = 0; label[sl]; sl++) ; /* Get name length */
mbed_official	5:b3b3370574cf	3983	for ( ; sl && label[sl - 1] == ' '; sl--) ; /* Remove trailing spaces */
mbed_official	5:b3b3370574cf	3984	if (sl) { /* Create volume label in directory form */
mbed_official	5:b3b3370574cf	3985	i = j = 0;
mbed_official	5:b3b3370574cf	3986	do {
mbed_official	5:b3b3370574cf	3987	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	3988	w = ff_convert(ff_wtoupper(label[i++]), 0);
mbed_official	5:b3b3370574cf	3989	#else
mbed_official	5:b3b3370574cf	3990	w = (BYTE)label[i++];
mbed_official	5:b3b3370574cf	3991	if (IsDBCS1(w))
mbed_official	5:b3b3370574cf	3992	w = (j < 10 && i < sl && IsDBCS2(label[i])) ? w << 8 \| (BYTE)label[i++] : 0;
mbed_official	5:b3b3370574cf	3993	#if _USE_LFN
mbed_official	5:b3b3370574cf	3994	w = ff_convert(ff_wtoupper(ff_convert(w, 1)), 0);
mbed_official	5:b3b3370574cf	3995	#else
mbed_official	5:b3b3370574cf	3996	if (IsLower(w)) w -= 0x20; /* To upper ASCII characters */
mbed_official	5:b3b3370574cf	3997	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	3998	if (w >= 0x80) w = ExCvt[w - 0x80]; /* To upper extended characters (SBCS cfg) */
mbed_official	5:b3b3370574cf	3999	#else
mbed_official	5:b3b3370574cf	4000	if (!_DF1S && w >= 0x80) w = 0; /* Reject extended characters (ASCII cfg) */
mbed_official	5:b3b3370574cf	4001	#endif
mbed_official	5:b3b3370574cf	4002	#endif
mbed_official	5:b3b3370574cf	4003	#endif
mbed_official	5:b3b3370574cf	4004	if (!w \|\| chk_chr("\"+,.:;<=>\?[]\|\x7F", w) \|\| j >= (UINT)((w >= 0x100) ? 10 : 11)) / Reject invalid characters for volume label */
mbed_official	5:b3b3370574cf	4005	LEAVE_FF(dj.fs, FR_INVALID_NAME);
mbed_official	5:b3b3370574cf	4006	if (w >= 0x100) vn[j++] = (BYTE)(w >> 8);
mbed_official	5:b3b3370574cf	4007	vn[j++] = (BYTE)w;
mbed_official	5:b3b3370574cf	4008	} while (i < sl);
mbed_official	5:b3b3370574cf	4009	while (j < 11) vn[j++] = ' '; /* Fill remaining name field */
mbed_official	5:b3b3370574cf	4010	if (vn[0] == DDEM) LEAVE_FF(dj.fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */
mbed_official	5:b3b3370574cf	4011	}
mbed_official	5:b3b3370574cf	4012
mbed_official	5:b3b3370574cf	4013	/* Set volume label */
mbed_official	5:b3b3370574cf	4014	dj.sclust = 0; /* Open root directory */
mbed_official	5:b3b3370574cf	4015	res = dir_sdi(&dj, 0);
mbed_official	5:b3b3370574cf	4016	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	4017	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
mbed_official	5:b3b3370574cf	4018	if (res == FR_OK) { /* A volume label is found */
mbed_official	5:b3b3370574cf	4019	if (vn[0]) {
mbed_official	6:a5fcdbf92056	4020	mem_cpy(dj.dir, vn, 11); /* Change the volume label name */
mbed_official	5:b3b3370574cf	4021	tm = GET_FATTIME();
mbed_official	6:a5fcdbf92056	4022	ST_DWORD(dj.dir + DIR_WrtTime, tm);
mbed_official	5:b3b3370574cf	4023	} else {
mbed_official	6:a5fcdbf92056	4024	dj.dir[0] = DDEM; /* Remove the volume label */
mbed_official	5:b3b3370574cf	4025	}
mbed_official	5:b3b3370574cf	4026	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	4027	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	4028	} else { /* No volume label is found or error */
mbed_official	5:b3b3370574cf	4029	if (res == FR_NO_FILE) {
mbed_official	5:b3b3370574cf	4030	res = FR_OK;
mbed_official	5:b3b3370574cf	4031	if (vn[0]) { /* Create volume label as new */
mbed_official	5:b3b3370574cf	4032	res = dir_alloc(&dj, 1); /* Allocate an entry for volume label */
mbed_official	5:b3b3370574cf	4033	if (res == FR_OK) {
mbed_official	6:a5fcdbf92056	4034	mem_set(dj.dir, 0, SZ_DIRE); /* Set volume label */
mbed_official	6:a5fcdbf92056	4035	mem_cpy(dj.dir, vn, 11);
mbed_official	6:a5fcdbf92056	4036	dj.dir[DIR_Attr] = AM_VOL;
mbed_official	5:b3b3370574cf	4037	tm = GET_FATTIME();
mbed_official	6:a5fcdbf92056	4038	ST_DWORD(dj.dir + DIR_WrtTime, tm);
mbed_official	5:b3b3370574cf	4039	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	4040	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	4041	}
mbed_official	5:b3b3370574cf	4042	}
mbed_official	5:b3b3370574cf	4043	}
mbed_official	5:b3b3370574cf	4044	}
mbed_official	5:b3b3370574cf	4045	}
mbed_official	5:b3b3370574cf	4046
mbed_official	5:b3b3370574cf	4047	LEAVE_FF(dj.fs, res);
mbed_official	5:b3b3370574cf	4048	}
mbed_official	5:b3b3370574cf	4049
mbed_official	5:b3b3370574cf	4050	#endif /* !_FS_READONLY */
mbed_official	5:b3b3370574cf	4051	#endif /* _USE_LABEL */
mbed_official	5:b3b3370574cf	4052
mbed_official	5:b3b3370574cf	4053
mbed_official	5:b3b3370574cf	4054
emilmont	1:46ce1e16c870	4055	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4056	/* Forward data to the stream directly (available on only tiny cfg) */
emilmont	1:46ce1e16c870	4057	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4058	#if _USE_FORWARD && _FS_TINY
emilmont	1:46ce1e16c870	4059
emilmont	1:46ce1e16c870	4060	FRESULT f_forward (
mbed_official	5:b3b3370574cf	4061	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	4062	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
mbed_official	5:b3b3370574cf	4063	UINT btf, /* Number of bytes to forward */
mbed_official	5:b3b3370574cf	4064	UINT* bf /* Pointer to number of bytes forwarded */
emilmont	1:46ce1e16c870	4065	)
emilmont	1:46ce1e16c870	4066	{
mbed_official	5:b3b3370574cf	4067	FRESULT res;
mbed_official	5:b3b3370574cf	4068	DWORD remain, clst, sect;
mbed_official	5:b3b3370574cf	4069	UINT rcnt;
mbed_official	5:b3b3370574cf	4070	BYTE csect;
mbed_official	5:b3b3370574cf	4071
mbed_official	5:b3b3370574cf	4072
mbed_official	5:b3b3370574cf	4073	bf = 0; / Clear transfer byte counter */
mbed_official	5:b3b3370574cf	4074
mbed_official	5:b3b3370574cf	4075	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	4076	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	4077	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	4078	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mbed_official	5:b3b3370574cf	4079	if (!(fp->flag & FA_READ)) /* Check access mode */
mbed_official	5:b3b3370574cf	4080	LEAVE_FF(fp->fs, FR_DENIED);
mbed_official	5:b3b3370574cf	4081
mbed_official	5:b3b3370574cf	4082	remain = fp->fsize - fp->fptr;
mbed_official	5:b3b3370574cf	4083	if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */
mbed_official	5:b3b3370574cf	4084
mbed_official	5:b3b3370574cf	4085	for ( ; btf && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
mbed_official	5:b3b3370574cf	4086	fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {
mbed_official	5:b3b3370574cf	4087	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mbed_official	5:b3b3370574cf	4088	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mbed_official	5:b3b3370574cf	4089	if (!csect) { /* On the cluster boundary? */
mbed_official	5:b3b3370574cf	4090	clst = (fp->fptr == 0) ? /* On the top of the file? */
mbed_official	5:b3b3370574cf	4091	fp->sclust : get_fat(fp->fs, fp->clust);
mbed_official	5:b3b3370574cf	4092	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	4093	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	4094	fp->clust = clst; /* Update current cluster */
mbed_official	5:b3b3370574cf	4095	}
mbed_official	5:b3b3370574cf	4096	}
mbed_official	5:b3b3370574cf	4097	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
mbed_official	5:b3b3370574cf	4098	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	4099	sect += csect;
mbed_official	5:b3b3370574cf	4100	if (move_window(fp->fs, sect) != FR_OK) /* Move sector window */
mbed_official	5:b3b3370574cf	4101	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	4102	fp->dsect = sect;
mbed_official	5:b3b3370574cf	4103	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
mbed_official	5:b3b3370574cf	4104	if (rcnt > btf) rcnt = btf;
mbed_official	5:b3b3370574cf	4105	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
mbed_official	5:b3b3370574cf	4106	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	4107	}
mbed_official	5:b3b3370574cf	4108
mbed_official	5:b3b3370574cf	4109	LEAVE_FF(fp->fs, FR_OK);
emilmont	1:46ce1e16c870	4110	}
emilmont	1:46ce1e16c870	4111	#endif /* _USE_FORWARD */
emilmont	1:46ce1e16c870	4112
emilmont	1:46ce1e16c870	4113
emilmont	1:46ce1e16c870	4114
emilmont	1:46ce1e16c870	4115	#if _USE_MKFS && !_FS_READONLY
emilmont	1:46ce1e16c870	4116	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4117	/* Create file system on the logical drive */
emilmont	1:46ce1e16c870	4118	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4119	#define N_ROOTDIR 512 /* Number of root directory entries for FAT12/16 */
mbed_official	5:b3b3370574cf	4120	#define N_FATS 1 /* Number of FATs (1 or 2) */
emilmont	1:46ce1e16c870	4121
emilmont	1:46ce1e16c870	4122
emilmont	1:46ce1e16c870	4123	FRESULT f_mkfs (
mbed_official	5:b3b3370574cf	4124	const TCHAR* path, /* Logical drive number */
mbed_official	5:b3b3370574cf	4125	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
mbed_official	5:b3b3370574cf	4126	UINT au /* Size of allocation unit in unit of byte or sector */
emilmont	1:46ce1e16c870	4127	)
emilmont	1:46ce1e16c870	4128	{
mbed_official	5:b3b3370574cf	4129	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
mbed_official	5:b3b3370574cf	4130	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
mbed_official	5:b3b3370574cf	4131	int vol;
mbed_official	5:b3b3370574cf	4132	BYTE fmt, md, sys, *tbl, pdrv, part;
mbed_official	5:b3b3370574cf	4133	DWORD n_clst, vs, n, wsect;
mbed_official	5:b3b3370574cf	4134	UINT i;
mbed_official	5:b3b3370574cf	4135	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
mbed_official	5:b3b3370574cf	4136	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
mbed_official	5:b3b3370574cf	4137	FATFS *fs;
mbed_official	5:b3b3370574cf	4138	DSTATUS stat;
mbed_official	5:b3b3370574cf	4139	#if _USE_TRIM
mbed_official	5:b3b3370574cf	4140	DWORD eb[2];
mbed_official	5:b3b3370574cf	4141	#endif
mbed_official	5:b3b3370574cf	4142
mbed_official	5:b3b3370574cf	4143
mbed_official	5:b3b3370574cf	4144	/* Check mounted drive and clear work area */
mbed_official	5:b3b3370574cf	4145	if (sfd > 1) return FR_INVALID_PARAMETER;
mbed_official	5:b3b3370574cf	4146	vol = get_ldnumber(&path);
mbed_official	5:b3b3370574cf	4147	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	4148	fs = FatFs[vol];
mbed_official	5:b3b3370574cf	4149	if (!fs) return FR_NOT_ENABLED;
mbed_official	5:b3b3370574cf	4150	fs->fs_type = 0;
mbed_official	5:b3b3370574cf	4151	pdrv = LD2PD(vol); /* Physical drive */
mbed_official	5:b3b3370574cf	4152	part = LD2PT(vol); /* Partition (0:auto detect, 1-4:get from partition table)*/
mbed_official	5:b3b3370574cf	4153
mbed_official	5:b3b3370574cf	4154	/* Get disk statics */
mbed_official	5:b3b3370574cf	4155	stat = disk_initialize(pdrv);
mbed_official	5:b3b3370574cf	4156	if (stat & STA_NOINIT) return FR_NOT_READY;
mbed_official	5:b3b3370574cf	4157	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	4158	#if _MAX_SS != _MIN_SS /* Get disk sector size */
mbed_official	5:b3b3370574cf	4159	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS \|\| SS(fs) < _MIN_SS)
mbed_official	5:b3b3370574cf	4160	return FR_DISK_ERR;
emilmont	1:46ce1e16c870	4161	#endif
mbed_official	5:b3b3370574cf	4162	if (_MULTI_PARTITION && part) {
mbed_official	5:b3b3370574cf	4163	/* Get partition information from partition table in the MBR */
mbed_official	5:b3b3370574cf	4164	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4165	if (LD_WORD(fs->win + BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
mbed_official	5:b3b3370574cf	4166	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mbed_official	5:b3b3370574cf	4167	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
mbed_official	5:b3b3370574cf	4168	b_vol = LD_DWORD(tbl + 8); /* Volume start sector */
mbed_official	5:b3b3370574cf	4169	n_vol = LD_DWORD(tbl + 12); /* Volume size */
mbed_official	5:b3b3370574cf	4170	} else {
mbed_official	5:b3b3370574cf	4171	/* Create a partition in this function */
mbed_official	5:b3b3370574cf	4172	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
mbed_official	5:b3b3370574cf	4173	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4174	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
mbed_official	5:b3b3370574cf	4175	n_vol -= b_vol; /* Volume size */
mbed_official	5:b3b3370574cf	4176	}
mbed_official	5:b3b3370574cf	4177
mbed_official	5:b3b3370574cf	4178	if (au & (au - 1)) au = 0;
mbed_official	5:b3b3370574cf	4179	if (!au) { /* AU auto selection */
mbed_official	5:b3b3370574cf	4180	vs = n_vol / (2000 / (SS(fs) / 512));
mbed_official	5:b3b3370574cf	4181	for (i = 0; vs < vst[i]; i++) ;
mbed_official	5:b3b3370574cf	4182	au = cst[i];
mbed_official	5:b3b3370574cf	4183	}
mbed_official	5:b3b3370574cf	4184	if (au >= _MIN_SS) au /= SS(fs); /* Number of sectors per cluster */
mbed_official	5:b3b3370574cf	4185	if (!au) au = 1;
mbed_official	5:b3b3370574cf	4186	if (au > 128) au = 128;
mbed_official	5:b3b3370574cf	4187
mbed_official	5:b3b3370574cf	4188	/* Pre-compute number of clusters and FAT sub-type */
mbed_official	5:b3b3370574cf	4189	n_clst = n_vol / au;
mbed_official	5:b3b3370574cf	4190	fmt = FS_FAT12;
mbed_official	5:b3b3370574cf	4191	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
mbed_official	5:b3b3370574cf	4192	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
mbed_official	5:b3b3370574cf	4193
mbed_official	5:b3b3370574cf	4194	/* Determine offset and size of FAT structure */
mbed_official	5:b3b3370574cf	4195	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4196	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
mbed_official	5:b3b3370574cf	4197	n_rsv = 32;
mbed_official	5:b3b3370574cf	4198	n_dir = 0;
mbed_official	5:b3b3370574cf	4199	} else {
mbed_official	5:b3b3370574cf	4200	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
mbed_official	5:b3b3370574cf	4201	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
mbed_official	5:b3b3370574cf	4202	n_rsv = 1;
mbed_official	5:b3b3370574cf	4203	n_dir = (DWORD)N_ROOTDIR * SZ_DIRE / SS(fs);
mbed_official	5:b3b3370574cf	4204	}
mbed_official	5:b3b3370574cf	4205	b_fat = b_vol + n_rsv; /* FAT area start sector */
mbed_official	5:b3b3370574cf	4206	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
mbed_official	5:b3b3370574cf	4207	b_data = b_dir + n_dir; /* Data area start sector */
mbed_official	5:b3b3370574cf	4208	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
mbed_official	5:b3b3370574cf	4209
mbed_official	5:b3b3370574cf	4210	/* Align data start sector to erase block boundary (for flash memory media) */
mbed_official	5:b3b3370574cf	4211	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
mbed_official	5:b3b3370574cf	4212	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
mbed_official	5:b3b3370574cf	4213	n = (n - b_data) / N_FATS;
mbed_official	5:b3b3370574cf	4214	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
mbed_official	5:b3b3370574cf	4215	n_rsv += n;
mbed_official	5:b3b3370574cf	4216	b_fat += n;
mbed_official	5:b3b3370574cf	4217	} else { /* FAT12/16: Expand FAT size */
mbed_official	5:b3b3370574cf	4218	n_fat += n;
mbed_official	5:b3b3370574cf	4219	}
mbed_official	5:b3b3370574cf	4220
mbed_official	5:b3b3370574cf	4221	/* Determine number of clusters and final check of validity of the FAT sub-type */
mbed_official	5:b3b3370574cf	4222	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
mbed_official	5:b3b3370574cf	4223	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
mbed_official	5:b3b3370574cf	4224	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
mbed_official	5:b3b3370574cf	4225	return FR_MKFS_ABORTED;
mbed_official	5:b3b3370574cf	4226
mbed_official	5:b3b3370574cf	4227	/* Determine system ID in the partition table */
mbed_official	5:b3b3370574cf	4228	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4229	sys = 0x0C; /* FAT32X */
mbed_official	5:b3b3370574cf	4230	} else {
mbed_official	5:b3b3370574cf	4231	if (fmt == FS_FAT12 && n_vol < 0x10000) {
mbed_official	5:b3b3370574cf	4232	sys = 0x01; /* FAT12(<65536) */
mbed_official	5:b3b3370574cf	4233	} else {
mbed_official	5:b3b3370574cf	4234	sys = (n_vol < 0x10000) ? 0x04 : 0x06; /* FAT16(<65536) : FAT12/16(>=65536) */
mbed_official	5:b3b3370574cf	4235	}
mbed_official	5:b3b3370574cf	4236	}
mbed_official	5:b3b3370574cf	4237
mbed_official	5:b3b3370574cf	4238	if (_MULTI_PARTITION && part) {
mbed_official	5:b3b3370574cf	4239	/* Update system ID in the partition table */
mbed_official	5:b3b3370574cf	4240	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mbed_official	5:b3b3370574cf	4241	tbl[4] = sys;
mbed_official	5:b3b3370574cf	4242	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to teh MBR */
mbed_official	5:b3b3370574cf	4243	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4244	md = 0xF8;
mbed_official	5:b3b3370574cf	4245	} else {
mbed_official	5:b3b3370574cf	4246	if (sfd) { /* No partition table (SFD) */
mbed_official	5:b3b3370574cf	4247	md = 0xF0;
mbed_official	5:b3b3370574cf	4248	} else { /* Create partition table (FDISK) */
mbed_official	5:b3b3370574cf	4249	mem_set(fs->win, 0, SS(fs));
mbed_official	5:b3b3370574cf	4250	tbl = fs->win + MBR_Table; /* Create partition table for single partition in the drive */
mbed_official	5:b3b3370574cf	4251	tbl[1] = 1; /* Partition start head */
mbed_official	5:b3b3370574cf	4252	tbl[2] = 1; /* Partition start sector */
mbed_official	5:b3b3370574cf	4253	tbl[3] = 0; /* Partition start cylinder */
mbed_official	5:b3b3370574cf	4254	tbl[4] = sys; /* System type */
mbed_official	5:b3b3370574cf	4255	tbl[5] = 254; /* Partition end head */
mbed_official	5:b3b3370574cf	4256	n = (b_vol + n_vol) / 63 / 255;
mbed_official	5:b3b3370574cf	4257	tbl[6] = (BYTE)(n >> 2 \| 63); /* Partition end sector */
mbed_official	5:b3b3370574cf	4258	tbl[7] = (BYTE)n; /* End cylinder */
mbed_official	5:b3b3370574cf	4259	ST_DWORD(tbl + 8, 63); /* Partition start in LBA */
mbed_official	5:b3b3370574cf	4260	ST_DWORD(tbl + 12, n_vol); /* Partition size in LBA */
mbed_official	5:b3b3370574cf	4261	ST_WORD(fs->win + BS_55AA, 0xAA55); /* MBR signature */
mbed_official	5:b3b3370574cf	4262	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR */
mbed_official	5:b3b3370574cf	4263	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4264	md = 0xF8;
mbed_official	5:b3b3370574cf	4265	}
mbed_official	5:b3b3370574cf	4266	}
mbed_official	5:b3b3370574cf	4267
mbed_official	5:b3b3370574cf	4268	/* Create BPB in the VBR */
mbed_official	5:b3b3370574cf	4269	tbl = fs->win; /* Clear sector */
mbed_official	5:b3b3370574cf	4270	mem_set(tbl, 0, SS(fs));
mbed_official	5:b3b3370574cf	4271	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
mbed_official	5:b3b3370574cf	4272	i = SS(fs); /* Sector size */
mbed_official	5:b3b3370574cf	4273	ST_WORD(tbl + BPB_BytsPerSec, i);
mbed_official	5:b3b3370574cf	4274	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
mbed_official	5:b3b3370574cf	4275	ST_WORD(tbl + BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
mbed_official	5:b3b3370574cf	4276	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
mbed_official	5:b3b3370574cf	4277	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of root directory entries */
mbed_official	5:b3b3370574cf	4278	ST_WORD(tbl + BPB_RootEntCnt, i);
mbed_official	5:b3b3370574cf	4279	if (n_vol < 0x10000) { /* Number of total sectors */
mbed_official	5:b3b3370574cf	4280	ST_WORD(tbl + BPB_TotSec16, n_vol);
mbed_official	5:b3b3370574cf	4281	} else {
mbed_official	5:b3b3370574cf	4282	ST_DWORD(tbl + BPB_TotSec32, n_vol);
mbed_official	5:b3b3370574cf	4283	}
mbed_official	5:b3b3370574cf	4284	tbl[BPB_Media] = md; /* Media descriptor */
mbed_official	5:b3b3370574cf	4285	ST_WORD(tbl + BPB_SecPerTrk, 63); /* Number of sectors per track */
mbed_official	5:b3b3370574cf	4286	ST_WORD(tbl + BPB_NumHeads, 255); /* Number of heads */
mbed_official	5:b3b3370574cf	4287	ST_DWORD(tbl + BPB_HiddSec, b_vol); /* Hidden sectors */
mbed_official	5:b3b3370574cf	4288	n = GET_FATTIME(); /* Use current time as VSN */
mbed_official	5:b3b3370574cf	4289	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4290	ST_DWORD(tbl + BS_VolID32, n); /* VSN */
mbed_official	5:b3b3370574cf	4291	ST_DWORD(tbl + BPB_FATSz32, n_fat); /* Number of sectors per FAT */
mbed_official	5:b3b3370574cf	4292	ST_DWORD(tbl + BPB_RootClus, 2); /* Root directory start cluster (2) */
mbed_official	5:b3b3370574cf	4293	ST_WORD(tbl + BPB_FSInfo, 1); /* FSINFO record offset (VBR + 1) */
mbed_official	5:b3b3370574cf	4294	ST_WORD(tbl + BPB_BkBootSec, 6); /* Backup boot record offset (VBR + 6) */
mbed_official	5:b3b3370574cf	4295	tbl[BS_DrvNum32] = 0x80; /* Drive number */
mbed_official	5:b3b3370574cf	4296	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
mbed_official	5:b3b3370574cf	4297	mem_cpy(tbl + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
mbed_official	5:b3b3370574cf	4298	} else {
mbed_official	5:b3b3370574cf	4299	ST_DWORD(tbl + BS_VolID, n); /* VSN */
mbed_official	5:b3b3370574cf	4300	ST_WORD(tbl + BPB_FATSz16, n_fat); /* Number of sectors per FAT */
mbed_official	5:b3b3370574cf	4301	tbl[BS_DrvNum] = 0x80; /* Drive number */
mbed_official	5:b3b3370574cf	4302	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
mbed_official	5:b3b3370574cf	4303	mem_cpy(tbl + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
mbed_official	5:b3b3370574cf	4304	}
mbed_official	5:b3b3370574cf	4305	ST_WORD(tbl + BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
mbed_official	5:b3b3370574cf	4306	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
mbed_official	5:b3b3370574cf	4307	return FR_DISK_ERR;
mbed_official	6:a5fcdbf92056	4308	if (fmt == FS_FAT32) /* Write it to the backup VBR if needed (VBR + 6) */
mbed_official	5:b3b3370574cf	4309	disk_write(pdrv, tbl, b_vol + 6, 1);
mbed_official	5:b3b3370574cf	4310
mbed_official	5:b3b3370574cf	4311	/* Initialize FAT area */
mbed_official	5:b3b3370574cf	4312	wsect = b_fat;
mbed_official	5:b3b3370574cf	4313	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
mbed_official	5:b3b3370574cf	4314	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
mbed_official	5:b3b3370574cf	4315	n = md; /* Media descriptor byte */
mbed_official	5:b3b3370574cf	4316	if (fmt != FS_FAT32) {
mbed_official	5:b3b3370574cf	4317	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
mbed_official	5:b3b3370574cf	4318	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT12/16) */
mbed_official	5:b3b3370574cf	4319	} else {
mbed_official	5:b3b3370574cf	4320	n \|= 0xFFFFFF00;
mbed_official	5:b3b3370574cf	4321	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT32) */
mbed_official	5:b3b3370574cf	4322	ST_DWORD(tbl + 4, 0xFFFFFFFF);
mbed_official	5:b3b3370574cf	4323	ST_DWORD(tbl + 8, 0x0FFFFFFF); /* Reserve cluster #2 for root directory */
mbed_official	5:b3b3370574cf	4324	}
mbed_official	5:b3b3370574cf	4325	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mbed_official	5:b3b3370574cf	4326	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4327	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
mbed_official	5:b3b3370574cf	4328	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	4329	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mbed_official	5:b3b3370574cf	4330	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4331	}
mbed_official	5:b3b3370574cf	4332	}
mbed_official	5:b3b3370574cf	4333
mbed_official	5:b3b3370574cf	4334	/* Initialize root directory */
mbed_official	5:b3b3370574cf	4335	i = (fmt == FS_FAT32) ? au : (UINT)n_dir;
mbed_official	5:b3b3370574cf	4336	do {
mbed_official	5:b3b3370574cf	4337	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mbed_official	5:b3b3370574cf	4338	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4339	} while (--i);
mbed_official	5:b3b3370574cf	4340
mbed_official	5:b3b3370574cf	4341	#if _USE_TRIM /* Erase data area if needed */
mbed_official	5:b3b3370574cf	4342	{
mbed_official	5:b3b3370574cf	4343	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
mbed_official	5:b3b3370574cf	4344	disk_ioctl(pdrv, CTRL_TRIM, eb);
mbed_official	5:b3b3370574cf	4345	}
emilmont	1:46ce1e16c870	4346	#endif
emilmont	1:46ce1e16c870	4347
mbed_official	5:b3b3370574cf	4348	/* Create FSINFO if needed */
mbed_official	5:b3b3370574cf	4349	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4350	ST_DWORD(tbl + FSI_LeadSig, 0x41615252);
mbed_official	5:b3b3370574cf	4351	ST_DWORD(tbl + FSI_StrucSig, 0x61417272);
mbed_official	5:b3b3370574cf	4352	ST_DWORD(tbl + FSI_Free_Count, n_clst - 1); /* Number of free clusters */
mbed_official	5:b3b3370574cf	4353	ST_DWORD(tbl + FSI_Nxt_Free, 2); /* Last allocated cluster# */
mbed_official	5:b3b3370574cf	4354	ST_WORD(tbl + BS_55AA, 0xAA55);
mbed_official	5:b3b3370574cf	4355	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR + 1) */
mbed_official	5:b3b3370574cf	4356	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR + 7) */
mbed_official	5:b3b3370574cf	4357	}
mbed_official	5:b3b3370574cf	4358
mbed_official	5:b3b3370574cf	4359	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
emilmont	1:46ce1e16c870	4360	}
emilmont	1:46ce1e16c870	4361
emilmont	1:46ce1e16c870	4362
mbed_official	5:b3b3370574cf	4363
mbed_official	5:b3b3370574cf	4364	#if _MULTI_PARTITION
emilmont	1:46ce1e16c870	4365	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4366	/* Create partition table on the physical drive */
emilmont	1:46ce1e16c870	4367	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4368
emilmont	1:46ce1e16c870	4369	FRESULT f_fdisk (
mbed_official	5:b3b3370574cf	4370	BYTE pdrv, /* Physical drive number */
mbed_official	5:b3b3370574cf	4371	const DWORD szt[], /* Pointer to the size table for each partitions */
mbed_official	5:b3b3370574cf	4372	void* work /* Pointer to the working buffer */
emilmont	1:46ce1e16c870	4373	)
emilmont	1:46ce1e16c870	4374	{
mbed_official	5:b3b3370574cf	4375	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
mbed_official	5:b3b3370574cf	4376	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
mbed_official	5:b3b3370574cf	4377	DSTATUS stat;
mbed_official	5:b3b3370574cf	4378	DWORD sz_disk, sz_part, s_part;
mbed_official	5:b3b3370574cf	4379
mbed_official	5:b3b3370574cf	4380
mbed_official	5:b3b3370574cf	4381	stat = disk_initialize(pdrv);
mbed_official	5:b3b3370574cf	4382	if (stat & STA_NOINIT) return FR_NOT_READY;
mbed_official	5:b3b3370574cf	4383	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	4384	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4385
mbed_official	5:b3b3370574cf	4386	/* Determine CHS in the table regardless of the drive geometry */
mbed_official	5:b3b3370574cf	4387	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
mbed_official	5:b3b3370574cf	4388	if (n == 256) n--;
mbed_official	5:b3b3370574cf	4389	e_hd = n - 1;
mbed_official	5:b3b3370574cf	4390	sz_cyl = 63 * n;
mbed_official	5:b3b3370574cf	4391	tot_cyl = sz_disk / sz_cyl;
mbed_official	5:b3b3370574cf	4392
mbed_official	5:b3b3370574cf	4393	/* Create partition table */
mbed_official	5:b3b3370574cf	4394	mem_set(buf, 0, _MAX_SS);
mbed_official	5:b3b3370574cf	4395	p = buf + MBR_Table; b_cyl = 0;
mbed_official	5:b3b3370574cf	4396	for (i = 0; i < 4; i++, p += SZ_PTE) {
mbed_official	5:b3b3370574cf	4397	p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
mbed_official	5:b3b3370574cf	4398	if (!p_cyl) continue;
mbed_official	5:b3b3370574cf	4399	s_part = (DWORD)sz_cyl * b_cyl;
mbed_official	5:b3b3370574cf	4400	sz_part = (DWORD)sz_cyl * p_cyl;
mbed_official	5:b3b3370574cf	4401	if (i == 0) { /* Exclude first track of cylinder 0 */
mbed_official	5:b3b3370574cf	4402	s_hd = 1;
mbed_official	5:b3b3370574cf	4403	s_part += 63; sz_part -= 63;
mbed_official	5:b3b3370574cf	4404	} else {
mbed_official	5:b3b3370574cf	4405	s_hd = 0;
mbed_official	5:b3b3370574cf	4406	}
mbed_official	5:b3b3370574cf	4407	e_cyl = b_cyl + p_cyl - 1;
mbed_official	5:b3b3370574cf	4408	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
mbed_official	5:b3b3370574cf	4409
mbed_official	5:b3b3370574cf	4410	/* Set partition table */
mbed_official	5:b3b3370574cf	4411	p[1] = s_hd; /* Start head */
mbed_official	5:b3b3370574cf	4412	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
mbed_official	5:b3b3370574cf	4413	p[3] = (BYTE)b_cyl; /* Start cylinder */
mbed_official	5:b3b3370574cf	4414	p[4] = 0x06; /* System type (temporary setting) */
mbed_official	5:b3b3370574cf	4415	p[5] = e_hd; /* End head */
mbed_official	5:b3b3370574cf	4416	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
mbed_official	5:b3b3370574cf	4417	p[7] = (BYTE)e_cyl; /* End cylinder */
mbed_official	5:b3b3370574cf	4418	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
mbed_official	5:b3b3370574cf	4419	ST_DWORD(p + 12, sz_part); /* Partition size */
mbed_official	5:b3b3370574cf	4420
mbed_official	5:b3b3370574cf	4421	/* Next partition */
mbed_official	5:b3b3370574cf	4422	b_cyl += p_cyl;
mbed_official	5:b3b3370574cf	4423	}
mbed_official	5:b3b3370574cf	4424	ST_WORD(p, 0xAA55);
mbed_official	5:b3b3370574cf	4425
mbed_official	5:b3b3370574cf	4426	/* Write it to the MBR */
mbed_official	5:b3b3370574cf	4427	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	4428	}
emilmont	1:46ce1e16c870	4429
emilmont	1:46ce1e16c870	4430
mbed_official	5:b3b3370574cf	4431	#endif /* _MULTI_PARTITION */
emilmont	1:46ce1e16c870	4432	#endif /* _USE_MKFS && !_FS_READONLY */
emilmont	1:46ce1e16c870	4433
emilmont	1:46ce1e16c870	4434
emilmont	1:46ce1e16c870	4435
emilmont	1:46ce1e16c870	4436
emilmont	1:46ce1e16c870	4437	#if _USE_STRFUNC
emilmont	1:46ce1e16c870	4438	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4439	/* Get a string from the file */
emilmont	1:46ce1e16c870	4440	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4441
emilmont	1:46ce1e16c870	4442	TCHAR* f_gets (
mbed_official	5:b3b3370574cf	4443	TCHAR* buff, /* Pointer to the string buffer to read */
mbed_official	5:b3b3370574cf	4444	int len, /* Size of string buffer (characters) */
mbed_official	5:b3b3370574cf	4445	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	4446	)
emilmont	1:46ce1e16c870	4447	{
mbed_official	5:b3b3370574cf	4448	int n = 0;
mbed_official	5:b3b3370574cf	4449	TCHAR c, *p = buff;
mbed_official	5:b3b3370574cf	4450	BYTE s[2];
mbed_official	5:b3b3370574cf	4451	UINT rc;
mbed_official	5:b3b3370574cf	4452
mbed_official	5:b3b3370574cf	4453
mbed_official	5:b3b3370574cf	4454	while (n < len - 1) { /* Read characters until buffer gets filled */
mbed_official	5:b3b3370574cf	4455	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	4456	#if _STRF_ENCODE == 3 /* Read a character in UTF-8 */
mbed_official	5:b3b3370574cf	4457	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4458	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4459	c = s[0];
mbed_official	5:b3b3370574cf	4460	if (c >= 0x80) {
mbed_official	5:b3b3370574cf	4461	if (c < 0xC0) continue; /* Skip stray trailer */
mbed_official	5:b3b3370574cf	4462	if (c < 0xE0) { /* Two-byte sequence */
mbed_official	5:b3b3370574cf	4463	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4464	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4465	c = (c & 0x1F) << 6 \| (s[0] & 0x3F);
mbed_official	5:b3b3370574cf	4466	if (c < 0x80) c = '?';
mbed_official	5:b3b3370574cf	4467	} else {
mbed_official	5:b3b3370574cf	4468	if (c < 0xF0) { /* Three-byte sequence */
mbed_official	5:b3b3370574cf	4469	f_read(fp, s, 2, &rc);
mbed_official	5:b3b3370574cf	4470	if (rc != 2) break;
mbed_official	5:b3b3370574cf	4471	c = c << 12 \| (s[0] & 0x3F) << 6 \| (s[1] & 0x3F);
mbed_official	5:b3b3370574cf	4472	if (c < 0x800) c = '?';
mbed_official	5:b3b3370574cf	4473	} else { /* Reject four-byte sequence */
mbed_official	5:b3b3370574cf	4474	c = '?';
mbed_official	5:b3b3370574cf	4475	}
mbed_official	5:b3b3370574cf	4476	}
mbed_official	5:b3b3370574cf	4477	}
mbed_official	5:b3b3370574cf	4478	#elif _STRF_ENCODE == 2 /* Read a character in UTF-16BE */
mbed_official	5:b3b3370574cf	4479	f_read(fp, s, 2, &rc);
mbed_official	5:b3b3370574cf	4480	if (rc != 2) break;
mbed_official	5:b3b3370574cf	4481	c = s[1] + (s[0] << 8);
mbed_official	5:b3b3370574cf	4482	#elif _STRF_ENCODE == 1 /* Read a character in UTF-16LE */
mbed_official	5:b3b3370574cf	4483	f_read(fp, s, 2, &rc);
mbed_official	5:b3b3370574cf	4484	if (rc != 2) break;
mbed_official	5:b3b3370574cf	4485	c = s[0] + (s[1] << 8);
mbed_official	5:b3b3370574cf	4486	#else /* Read a character in ANSI/OEM */
mbed_official	5:b3b3370574cf	4487	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4488	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4489	c = s[0];
mbed_official	5:b3b3370574cf	4490	if (IsDBCS1(c)) {
mbed_official	5:b3b3370574cf	4491	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4492	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4493	c = (c << 8) + s[0];
mbed_official	5:b3b3370574cf	4494	}
mbed_official	5:b3b3370574cf	4495	c = ff_convert(c, 1); /* OEM -> Unicode */
mbed_official	5:b3b3370574cf	4496	if (!c) c = '?';
emilmont	1:46ce1e16c870	4497	#endif
mbed_official	5:b3b3370574cf	4498	#else /* Read a character without conversion */
mbed_official	5:b3b3370574cf	4499	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4500	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4501	c = s[0];
emilmont	1:46ce1e16c870	4502	#endif
mbed_official	5:b3b3370574cf	4503	if (_USE_STRFUNC == 2 && c == '\r') continue; /* Strip '\r' */
mbed_official	5:b3b3370574cf	4504	*p++ = c;
mbed_official	5:b3b3370574cf	4505	n++;
mbed_official	5:b3b3370574cf	4506	if (c == '\n') break; /* Break on EOL */
mbed_official	5:b3b3370574cf	4507	}
mbed_official	5:b3b3370574cf	4508	*p = 0;
mbed_official	5:b3b3370574cf	4509	return n ? buff : 0; /* When no data read (eof or error), return with error. */
emilmont	1:46ce1e16c870	4510	}
emilmont	1:46ce1e16c870	4511
emilmont	1:46ce1e16c870	4512
emilmont	1:46ce1e16c870	4513
mbed_official	5:b3b3370574cf	4514
emilmont	1:46ce1e16c870	4515	#if !_FS_READONLY
emilmont	1:46ce1e16c870	4516	#include <stdarg.h>
emilmont	1:46ce1e16c870	4517	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4518	/* Put a character to the file */
emilmont	1:46ce1e16c870	4519	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4520
mbed_official	5:b3b3370574cf	4521	typedef struct {
mbed_official	5:b3b3370574cf	4522	FIL* fp;
mbed_official	5:b3b3370574cf	4523	int idx, nchr;
mbed_official	5:b3b3370574cf	4524	BYTE buf[64];
mbed_official	5:b3b3370574cf	4525	} putbuff;
mbed_official	5:b3b3370574cf	4526
mbed_official	5:b3b3370574cf	4527
mbed_official	5:b3b3370574cf	4528	static
mbed_official	5:b3b3370574cf	4529	void putc_bfd (
mbed_official	5:b3b3370574cf	4530	putbuff* pb,
mbed_official	5:b3b3370574cf	4531	TCHAR c
emilmont	1:46ce1e16c870	4532	)
emilmont	1:46ce1e16c870	4533	{
mbed_official	5:b3b3370574cf	4534	UINT bw;
mbed_official	5:b3b3370574cf	4535	int i;
mbed_official	5:b3b3370574cf	4536
mbed_official	5:b3b3370574cf	4537
mbed_official	5:b3b3370574cf	4538	if (_USE_STRFUNC == 2 && c == '\n') /* LF -> CRLF conversion */
mbed_official	5:b3b3370574cf	4539	putc_bfd(pb, '\r');
mbed_official	5:b3b3370574cf	4540
mbed_official	5:b3b3370574cf	4541	i = pb->idx; /* Buffer write index (-1:error) */
mbed_official	5:b3b3370574cf	4542	if (i < 0) return;
mbed_official	5:b3b3370574cf	4543
mbed_official	5:b3b3370574cf	4544	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	4545	#if _STRF_ENCODE == 3 /* Write a character in UTF-8 */
mbed_official	5:b3b3370574cf	4546	if (c < 0x80) { /* 7-bit */
mbed_official	5:b3b3370574cf	4547	pb->buf[i++] = (BYTE)c;
mbed_official	5:b3b3370574cf	4548	} else {
mbed_official	5:b3b3370574cf	4549	if (c < 0x800) { /* 11-bit */
mbed_official	5:b3b3370574cf	4550	pb->buf[i++] = (BYTE)(0xC0 \| c >> 6);
mbed_official	5:b3b3370574cf	4551	} else { /* 16-bit */
mbed_official	5:b3b3370574cf	4552	pb->buf[i++] = (BYTE)(0xE0 \| c >> 12);
mbed_official	5:b3b3370574cf	4553	pb->buf[i++] = (BYTE)(0x80 \| (c >> 6 & 0x3F));
mbed_official	5:b3b3370574cf	4554	}
mbed_official	5:b3b3370574cf	4555	pb->buf[i++] = (BYTE)(0x80 \| (c & 0x3F));
mbed_official	5:b3b3370574cf	4556	}
mbed_official	5:b3b3370574cf	4557	#elif _STRF_ENCODE == 2 /* Write a character in UTF-16BE */
mbed_official	5:b3b3370574cf	4558	pb->buf[i++] = (BYTE)(c >> 8);
mbed_official	5:b3b3370574cf	4559	pb->buf[i++] = (BYTE)c;
mbed_official	5:b3b3370574cf	4560	#elif _STRF_ENCODE == 1 /* Write a character in UTF-16LE */
mbed_official	5:b3b3370574cf	4561	pb->buf[i++] = (BYTE)c;
mbed_official	5:b3b3370574cf	4562	pb->buf[i++] = (BYTE)(c >> 8);
mbed_official	5:b3b3370574cf	4563	#else /* Write a character in ANSI/OEM */
mbed_official	5:b3b3370574cf	4564	c = ff_convert(c, 0); /* Unicode -> OEM */
mbed_official	5:b3b3370574cf	4565	if (!c) c = '?';
mbed_official	5:b3b3370574cf	4566	if (c >= 0x100)
mbed_official	5:b3b3370574cf	4567	pb->buf[i++] = (BYTE)(c >> 8);
mbed_official	5:b3b3370574cf	4568	pb->buf[i++] = (BYTE)c;
emilmont	1:46ce1e16c870	4569	#endif
mbed_official	5:b3b3370574cf	4570	#else /* Write a character without conversion */
mbed_official	5:b3b3370574cf	4571	pb->buf[i++] = (BYTE)c;
emilmont	1:46ce1e16c870	4572	#endif
mbed_official	5:b3b3370574cf	4573
mbed_official	5:b3b3370574cf	4574	if (i >= (int)(sizeof pb->buf) - 3) { /* Write buffered characters to the file */
mbed_official	5:b3b3370574cf	4575	f_write(pb->fp, pb->buf, (UINT)i, &bw);
mbed_official	5:b3b3370574cf	4576	i = (bw == (UINT)i) ? 0 : -1;
mbed_official	5:b3b3370574cf	4577	}
mbed_official	5:b3b3370574cf	4578	pb->idx = i;
mbed_official	5:b3b3370574cf	4579	pb->nchr++;
mbed_official	5:b3b3370574cf	4580	}
mbed_official	5:b3b3370574cf	4581
mbed_official	5:b3b3370574cf	4582
mbed_official	5:b3b3370574cf	4583
mbed_official	5:b3b3370574cf	4584	int f_putc (
mbed_official	5:b3b3370574cf	4585	TCHAR c, /* A character to be output */
mbed_official	5:b3b3370574cf	4586	FIL* fp /* Pointer to the file object */
mbed_official	5:b3b3370574cf	4587	)
mbed_official	5:b3b3370574cf	4588	{
mbed_official	5:b3b3370574cf	4589	putbuff pb;
mbed_official	5:b3b3370574cf	4590	UINT nw;
mbed_official	5:b3b3370574cf	4591
mbed_official	5:b3b3370574cf	4592
mbed_official	5:b3b3370574cf	4593	pb.fp = fp; /* Initialize output buffer */
mbed_official	5:b3b3370574cf	4594	pb.nchr = pb.idx = 0;
mbed_official	5:b3b3370574cf	4595
mbed_official	5:b3b3370574cf	4596	putc_bfd(&pb, c); /* Put a character */
mbed_official	5:b3b3370574cf	4597
mbed_official	5:b3b3370574cf	4598	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mbed_official	5:b3b3370574cf	4599	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mbed_official	5:b3b3370574cf	4600	&& (UINT)pb.idx == nw) return pb.nchr;
mbed_official	5:b3b3370574cf	4601	return EOF;
emilmont	1:46ce1e16c870	4602	}
emilmont	1:46ce1e16c870	4603
emilmont	1:46ce1e16c870	4604
emilmont	1:46ce1e16c870	4605
emilmont	1:46ce1e16c870	4606
emilmont	1:46ce1e16c870	4607	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4608	/* Put a string to the file */
emilmont	1:46ce1e16c870	4609	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4610
emilmont	1:46ce1e16c870	4611	int f_puts (
mbed_official	5:b3b3370574cf	4612	const TCHAR* str, /* Pointer to the string to be output */
mbed_official	5:b3b3370574cf	4613	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	4614	)
emilmont	1:46ce1e16c870	4615	{
mbed_official	5:b3b3370574cf	4616	putbuff pb;
mbed_official	5:b3b3370574cf	4617	UINT nw;
mbed_official	5:b3b3370574cf	4618
mbed_official	5:b3b3370574cf	4619
mbed_official	5:b3b3370574cf	4620	pb.fp = fp; /* Initialize output buffer */
mbed_official	5:b3b3370574cf	4621	pb.nchr = pb.idx = 0;
mbed_official	5:b3b3370574cf	4622
mbed_official	5:b3b3370574cf	4623	while (str) / Put the string */
mbed_official	5:b3b3370574cf	4624	putc_bfd(&pb, *str++);
mbed_official	5:b3b3370574cf	4625
mbed_official	5:b3b3370574cf	4626	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mbed_official	5:b3b3370574cf	4627	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mbed_official	5:b3b3370574cf	4628	&& (UINT)pb.idx == nw) return pb.nchr;
mbed_official	5:b3b3370574cf	4629	return EOF;
emilmont	1:46ce1e16c870	4630	}
emilmont	1:46ce1e16c870	4631
emilmont	1:46ce1e16c870	4632
emilmont	1:46ce1e16c870	4633
emilmont	1:46ce1e16c870	4634
emilmont	1:46ce1e16c870	4635	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4636	/* Put a formatted string to the file */
emilmont	1:46ce1e16c870	4637	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4638
emilmont	1:46ce1e16c870	4639	int f_printf (
mbed_official	5:b3b3370574cf	4640	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	4641	const TCHAR* fmt, /* Pointer to the format string */
mbed_official	5:b3b3370574cf	4642	... /* Optional arguments... */
emilmont	1:46ce1e16c870	4643	)
emilmont	1:46ce1e16c870	4644	{
mbed_official	5:b3b3370574cf	4645	va_list arp;
mbed_official	5:b3b3370574cf	4646	BYTE f, r;
mbed_official	5:b3b3370574cf	4647	UINT nw, i, j, w;
mbed_official	5:b3b3370574cf	4648	DWORD v;
mbed_official	5:b3b3370574cf	4649	TCHAR c, d, s[16], *p;
mbed_official	5:b3b3370574cf	4650	putbuff pb;
mbed_official	5:b3b3370574cf	4651
mbed_official	5:b3b3370574cf	4652
mbed_official	5:b3b3370574cf	4653	pb.fp = fp; /* Initialize output buffer */
mbed_official	5:b3b3370574cf	4654	pb.nchr = pb.idx = 0;
mbed_official	5:b3b3370574cf	4655
mbed_official	5:b3b3370574cf	4656	va_start(arp, fmt);
mbed_official	5:b3b3370574cf	4657
mbed_official	5:b3b3370574cf	4658	for (;;) {
mbed_official	5:b3b3370574cf	4659	c = *fmt++;
mbed_official	5:b3b3370574cf	4660	if (c == 0) break; /* End of string */
mbed_official	5:b3b3370574cf	4661	if (c != '%') { /* Non escape character */
mbed_official	5:b3b3370574cf	4662	putc_bfd(&pb, c);
mbed_official	5:b3b3370574cf	4663	continue;
mbed_official	5:b3b3370574cf	4664	}
mbed_official	5:b3b3370574cf	4665	w = f = 0;
mbed_official	5:b3b3370574cf	4666	c = *fmt++;
mbed_official	5:b3b3370574cf	4667	if (c == '0') { /* Flag: '0' padding */
mbed_official	5:b3b3370574cf	4668	f = 1; c = *fmt++;
mbed_official	5:b3b3370574cf	4669	} else {
mbed_official	5:b3b3370574cf	4670	if (c == '-') { /* Flag: left justified */
mbed_official	5:b3b3370574cf	4671	f = 2; c = *fmt++;
mbed_official	5:b3b3370574cf	4672	}
mbed_official	5:b3b3370574cf	4673	}
mbed_official	5:b3b3370574cf	4674	while (IsDigit(c)) { /* Precision */
mbed_official	5:b3b3370574cf	4675	w = w * 10 + c - '0';
mbed_official	5:b3b3370574cf	4676	c = *fmt++;
mbed_official	5:b3b3370574cf	4677	}
mbed_official	5:b3b3370574cf	4678	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
mbed_official	5:b3b3370574cf	4679	f \|= 4; c = *fmt++;
mbed_official	5:b3b3370574cf	4680	}
mbed_official	5:b3b3370574cf	4681	if (!c) break;
mbed_official	5:b3b3370574cf	4682	d = c;
mbed_official	5:b3b3370574cf	4683	if (IsLower(d)) d -= 0x20;
mbed_official	5:b3b3370574cf	4684	switch (d) { /* Type is... */
mbed_official	5:b3b3370574cf	4685	case 'S' : /* String */
mbed_official	5:b3b3370574cf	4686	p = va_arg(arp, TCHAR*);
mbed_official	5:b3b3370574cf	4687	for (j = 0; p[j]; j++) ;
mbed_official	5:b3b3370574cf	4688	if (!(f & 2)) {
mbed_official	5:b3b3370574cf	4689	while (j++ < w) putc_bfd(&pb, ' ');
mbed_official	5:b3b3370574cf	4690	}
mbed_official	5:b3b3370574cf	4691	while (p) putc_bfd(&pb, p++);
mbed_official	5:b3b3370574cf	4692	while (j++ < w) putc_bfd(&pb, ' ');
mbed_official	5:b3b3370574cf	4693	continue;
mbed_official	5:b3b3370574cf	4694	case 'C' : /* Character */
mbed_official	5:b3b3370574cf	4695	putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue;
mbed_official	5:b3b3370574cf	4696	case 'B' : /* Binary */
mbed_official	5:b3b3370574cf	4697	r = 2; break;
mbed_official	5:b3b3370574cf	4698	case 'O' : /* Octal */
mbed_official	5:b3b3370574cf	4699	r = 8; break;
mbed_official	5:b3b3370574cf	4700	case 'D' : /* Signed decimal */
mbed_official	5:b3b3370574cf	4701	case 'U' : /* Unsigned decimal */
mbed_official	5:b3b3370574cf	4702	r = 10; break;
mbed_official	5:b3b3370574cf	4703	case 'X' : /* Hexdecimal */
mbed_official	5:b3b3370574cf	4704	r = 16; break;
mbed_official	5:b3b3370574cf	4705	default: /* Unknown type (pass-through) */
mbed_official	5:b3b3370574cf	4706	putc_bfd(&pb, c); continue;
mbed_official	5:b3b3370574cf	4707	}
mbed_official	5:b3b3370574cf	4708
mbed_official	5:b3b3370574cf	4709	/* Get an argument and put it in numeral */
mbed_official	5:b3b3370574cf	4710	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	4711	if (d == 'D' && (v & 0x80000000)) {
mbed_official	5:b3b3370574cf	4712	v = 0 - v;
mbed_official	5:b3b3370574cf	4713	f \|= 8;
mbed_official	5:b3b3370574cf	4714	}
mbed_official	5:b3b3370574cf	4715	i = 0;
mbed_official	5:b3b3370574cf	4716	do {
mbed_official	5:b3b3370574cf	4717	d = (TCHAR)(v % r); v /= r;
mbed_official	5:b3b3370574cf	4718	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
mbed_official	5:b3b3370574cf	4719	s[i++] = d + '0';
mbed_official	5:b3b3370574cf	4720	} while (v && i < sizeof s / sizeof s[0]);
mbed_official	5:b3b3370574cf	4721	if (f & 8) s[i++] = '-';
mbed_official	5:b3b3370574cf	4722	j = i; d = (f & 1) ? '0' : ' ';
mbed_official	5:b3b3370574cf	4723	while (!(f & 2) && j++ < w) putc_bfd(&pb, d);
mbed_official	5:b3b3370574cf	4724	do putc_bfd(&pb, s[--i]); while (i);
mbed_official	5:b3b3370574cf	4725	while (j++ < w) putc_bfd(&pb, d);
mbed_official	5:b3b3370574cf	4726	}
mbed_official	5:b3b3370574cf	4727
mbed_official	5:b3b3370574cf	4728	va_end(arp);
mbed_official	5:b3b3370574cf	4729
mbed_official	5:b3b3370574cf	4730	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mbed_official	5:b3b3370574cf	4731	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mbed_official	5:b3b3370574cf	4732	&& (UINT)pb.idx == nw) return pb.nchr;
mbed_official	5:b3b3370574cf	4733	return EOF;
emilmont	1:46ce1e16c870	4734	}
emilmont	1:46ce1e16c870	4735
emilmont	1:46ce1e16c870	4736	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	4737	#endif /* _USE_STRFUNC */

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Type:	Library
Created:	13 Mar 2016
Imports:	14
Forks:	0
Commits:	13
Dependents:	2
Dependencies:	0
Followers:	1

ChaN/ff.cpp@12:d816f503fc6f, 2017-07-29 (annotated)

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