FATFileSystem - FATFileSystem fork with fixes

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Matthew Else / FATFileSystem

FATFileSystem fork with fixes

Dependents: SDFileSystem

Fork of FATFileSystem by mbed official

ChaN/ff.cpp@5:b3b3370574cf, 2015-08-13 (annotated)

Committer:: mbed_official
Date:: Thu Aug 13 10:15:39 2015 +0100
Revision:: 5:b3b3370574cf
Parent:: 4:3ff2606d5713
Child:: 6:a5fcdbf92056

Synchronized with git revision ab6a668ec18ad1530649c4cf1067a42816c6a7f8

Full URL: https://github.com/mbedmicro/mbed/commit/ab6a668ec18ad1530649c4cf1067a42816c6a7f8/

FATFileSystem - Updated FatFs to R0.11

Who changed what in which revision?

User	Revision	Line number	New contents of line
emilmont	1:46ce1e16c870	1	/*----------------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2	/ FatFs - FAT file system module R0.11 (C)ChaN, 2015
emilmont	1:46ce1e16c870	3	/-----------------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4	/ FatFs module is a free software that opened under license policy of
mbed_official	5:b3b3370574cf	5	/ following conditions.
emilmont	1:46ce1e16c870	6	/
mbed_official	5:b3b3370574cf	7	/ Copyright (C) 2015, ChaN, all right reserved.
emilmont	1:46ce1e16c870	8	/
mbed_official	5:b3b3370574cf	9	/ 1. Redistributions of source code must retain the above copyright notice,
mbed_official	5:b3b3370574cf	10	/ this condition and the following disclaimer.
emilmont	1:46ce1e16c870	11	/
mbed_official	5:b3b3370574cf	12	/ This software is provided by the copyright holder and contributors "AS IS"
mbed_official	5:b3b3370574cf	13	/ and any warranties related to this software are DISCLAIMED.
mbed_official	5:b3b3370574cf	14	/ The copyright owner or contributors be NOT LIABLE for any damages caused
mbed_official	5:b3b3370574cf	15	/ by use of this software.
mbed_official	5:b3b3370574cf	16	/----------------------------------------------------------------------------*/
mbed_official	5:b3b3370574cf	17
mbed_official	5:b3b3370574cf	18
mbed_official	5:b3b3370574cf	19	#include "ff.h" /* Declarations of FatFs API */
mbed_official	5:b3b3370574cf	20	#include "diskio.h" /* Declarations of disk I/O functions */
emilmont	1:46ce1e16c870	21
emilmont	1:46ce1e16c870	22
emilmont	1:46ce1e16c870	23	/*--------------------------------------------------------------------------
emilmont	1:46ce1e16c870	24
emilmont	1:46ce1e16c870	25	Module Private Definitions
emilmont	1:46ce1e16c870	26
emilmont	1:46ce1e16c870	27	---------------------------------------------------------------------------*/
emilmont	1:46ce1e16c870	28
mbed_official	5:b3b3370574cf	29	#if _FATFS != 32020 /* Revision ID */
emilmont	1:46ce1e16c870	30	#error Wrong include file (ff.h).
emilmont	1:46ce1e16c870	31	#endif
emilmont	1:46ce1e16c870	32
emilmont	1:46ce1e16c870	33
emilmont	1:46ce1e16c870	34	/* Reentrancy related */
emilmont	1:46ce1e16c870	35	#if _FS_REENTRANT
emilmont	1:46ce1e16c870	36	#if _USE_LFN == 1
mbed_official	5:b3b3370574cf	37	#error Static LFN work area cannot be used at thread-safe configuration
emilmont	1:46ce1e16c870	38	#endif
mbed_official	5:b3b3370574cf	39	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
mbed_official	5:b3b3370574cf	40	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
emilmont	1:46ce1e16c870	41	#else
mbed_official	5:b3b3370574cf	42	#define ENTER_FF(fs)
mbed_official	5:b3b3370574cf	43	#define LEAVE_FF(fs, res) return res
mbed_official	5:b3b3370574cf	44	#endif
mbed_official	5:b3b3370574cf	45
mbed_official	5:b3b3370574cf	46	#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }
mbed_official	5:b3b3370574cf	47
mbed_official	5:b3b3370574cf	48
mbed_official	5:b3b3370574cf	49	/* Definitions of sector size */
mbed_official	5:b3b3370574cf	50	#if (_MAX_SS < _MIN_SS) \|\| (_MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096) \|\| (_MIN_SS != 512 && _MIN_SS != 1024 && _MIN_SS != 2048 && _MIN_SS != 4096)
mbed_official	5:b3b3370574cf	51	#error Wrong sector size configuration
emilmont	1:46ce1e16c870	52	#endif
mbed_official	5:b3b3370574cf	53	#if _MAX_SS == _MIN_SS
mbed_official	5:b3b3370574cf	54	#define SS(fs) ((UINT)_MAX_SS) /* Fixed sector size */
mbed_official	5:b3b3370574cf	55	#else
mbed_official	5:b3b3370574cf	56	#define SS(fs) ((fs)->ssize) /* Variable sector size */
mbed_official	5:b3b3370574cf	57	#endif
mbed_official	5:b3b3370574cf	58
mbed_official	5:b3b3370574cf	59
mbed_official	5:b3b3370574cf	60	/* Timestamp feature */
mbed_official	5:b3b3370574cf	61	#if _FS_NORTC == 1
mbed_official	5:b3b3370574cf	62	#if _NORTC_YEAR < 1980 \|\| _NORTC_YEAR > 2107 \|\| _NORTC_MON < 1 \|\| _NORTC_MON > 12 \|\| _NORTC_MDAY < 1 \|\| _NORTC_MDAY > 31
mbed_official	5:b3b3370574cf	63	#error Invalid _FS_NORTC settings
mbed_official	5:b3b3370574cf	64	#endif
mbed_official	5:b3b3370574cf	65	#define GET_FATTIME() ((DWORD)(_NORTC_YEAR - 1980) << 25 \| (DWORD)_NORTC_MON << 21 \| (DWORD)_NORTC_MDAY << 16)
mbed_official	5:b3b3370574cf	66	#else
mbed_official	5:b3b3370574cf	67	#define GET_FATTIME() get_fattime()
mbed_official	5:b3b3370574cf	68	#endif
emilmont	1:46ce1e16c870	69
emilmont	1:46ce1e16c870	70
emilmont	1:46ce1e16c870	71	/* File access control feature */
emilmont	1:46ce1e16c870	72	#if _FS_LOCK
emilmont	1:46ce1e16c870	73	#if _FS_READONLY
mbed_official	5:b3b3370574cf	74	#error _FS_LOCK must be 0 at read-only configuration
emilmont	1:46ce1e16c870	75	#endif
emilmont	1:46ce1e16c870	76	typedef struct {
mbed_official	5:b3b3370574cf	77	FATFS fs; / Object ID 1, volume (NULL:blank entry) */
mbed_official	5:b3b3370574cf	78	DWORD clu; /* Object ID 2, directory (0:root) */
mbed_official	5:b3b3370574cf	79	WORD idx; /* Object ID 3, directory index */
mbed_official	5:b3b3370574cf	80	WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */
emilmont	1:46ce1e16c870	81	} FILESEM;
emilmont	1:46ce1e16c870	82	#endif
emilmont	1:46ce1e16c870	83
emilmont	1:46ce1e16c870	84
emilmont	1:46ce1e16c870	85
mbed_official	5:b3b3370574cf	86	/* DBCS code ranges and SBCS extend character conversion table */
mbed_official	5:b3b3370574cf	87
mbed_official	5:b3b3370574cf	88	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
mbed_official	5:b3b3370574cf	89	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
mbed_official	5:b3b3370574cf	90	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
mbed_official	5:b3b3370574cf	91	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
mbed_official	5:b3b3370574cf	92	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
mbed_official	5:b3b3370574cf	93	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
mbed_official	5:b3b3370574cf	94	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
mbed_official	5:b3b3370574cf	95	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
mbed_official	5:b3b3370574cf	96	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
mbed_official	5:b3b3370574cf	97
mbed_official	5:b3b3370574cf	98	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
mbed_official	5:b3b3370574cf	99	#define _DF1S 0x81
mbed_official	5:b3b3370574cf	100	#define _DF1E 0xFE
mbed_official	5:b3b3370574cf	101	#define _DS1S 0x40
mbed_official	5:b3b3370574cf	102	#define _DS1E 0x7E
mbed_official	5:b3b3370574cf	103	#define _DS2S 0x80
mbed_official	5:b3b3370574cf	104	#define _DS2E 0xFE
mbed_official	5:b3b3370574cf	105
mbed_official	5:b3b3370574cf	106	#elif _CODE_PAGE == 949 /* Korean */
mbed_official	5:b3b3370574cf	107	#define _DF1S 0x81
mbed_official	5:b3b3370574cf	108	#define _DF1E 0xFE
mbed_official	5:b3b3370574cf	109	#define _DS1S 0x41
mbed_official	5:b3b3370574cf	110	#define _DS1E 0x5A
mbed_official	5:b3b3370574cf	111	#define _DS2S 0x61
mbed_official	5:b3b3370574cf	112	#define _DS2E 0x7A
mbed_official	5:b3b3370574cf	113	#define _DS3S 0x81
mbed_official	5:b3b3370574cf	114	#define _DS3E 0xFE
mbed_official	5:b3b3370574cf	115
mbed_official	5:b3b3370574cf	116	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
mbed_official	5:b3b3370574cf	117	#define _DF1S 0x81
mbed_official	5:b3b3370574cf	118	#define _DF1E 0xFE
mbed_official	5:b3b3370574cf	119	#define _DS1S 0x40
mbed_official	5:b3b3370574cf	120	#define _DS1E 0x7E
mbed_official	5:b3b3370574cf	121	#define _DS2S 0xA1
mbed_official	5:b3b3370574cf	122	#define _DS2E 0xFE
mbed_official	5:b3b3370574cf	123
mbed_official	5:b3b3370574cf	124	#elif _CODE_PAGE == 437 /* U.S. (OEM) */
mbed_official	5:b3b3370574cf	125	#define _DF1S 0
emilmont	1:46ce1e16c870	126	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F,0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	127	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	128	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	129	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	5:b3b3370574cf	130
mbed_official	5:b3b3370574cf	131	#elif _CODE_PAGE == 720 /* Arabic (OEM) */
mbed_official	5:b3b3370574cf	132	#define _DF1S 0
emilmont	1:46ce1e16c870	133	#define _EXCVT {0x80,0x81,0x45,0x41,0x84,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x49,0x49,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	134	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	135	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	136	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	5:b3b3370574cf	137
mbed_official	5:b3b3370574cf	138	#elif _CODE_PAGE == 737 /* Greek (OEM) */
mbed_official	5:b3b3370574cf	139	#define _DF1S 0
emilmont	1:46ce1e16c870	140	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
mbed_official	5:b3b3370574cf	141	0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	142	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	143	0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xE7,0xE8,0xF1,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	5:b3b3370574cf	144
mbed_official	5:b3b3370574cf	145	#elif _CODE_PAGE == 775 /* Baltic (OEM) */
mbed_official	5:b3b3370574cf	146	#define _DF1S 0
emilmont	1:46ce1e16c870	147	#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	148	0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	149	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	150	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	5:b3b3370574cf	151
mbed_official	5:b3b3370574cf	152	#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
mbed_official	5:b3b3370574cf	153	#define _DF1S 0
emilmont	1:46ce1e16c870	154	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	155	0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	156	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	157	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	5:b3b3370574cf	158
mbed_official	5:b3b3370574cf	159	#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
mbed_official	5:b3b3370574cf	160	#define _DF1S 0
emilmont	1:46ce1e16c870	161	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F,0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	162	0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
mbed_official	5:b3b3370574cf	163	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	164	0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
mbed_official	5:b3b3370574cf	165
mbed_official	5:b3b3370574cf	166	#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
mbed_official	5:b3b3370574cf	167	#define _DF1S 0
emilmont	1:46ce1e16c870	168	#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F,0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
mbed_official	5:b3b3370574cf	169	0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	170	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
mbed_official	5:b3b3370574cf	171	0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
mbed_official	5:b3b3370574cf	172
mbed_official	5:b3b3370574cf	173	#elif _CODE_PAGE == 857 /* Turkish (OEM) */
mbed_official	5:b3b3370574cf	174	#define _DF1S 0
emilmont	1:46ce1e16c870	175	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x98,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
mbed_official	5:b3b3370574cf	176	0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	177	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	178	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0x59,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	5:b3b3370574cf	179
mbed_official	5:b3b3370574cf	180	#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
mbed_official	5:b3b3370574cf	181	#define _DF1S 0
emilmont	1:46ce1e16c870	182	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	183	0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	184	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	185	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	5:b3b3370574cf	186
mbed_official	5:b3b3370574cf	187	#elif _CODE_PAGE == 862 /* Hebrew (OEM) */
mbed_official	5:b3b3370574cf	188	#define _DF1S 0
emilmont	1:46ce1e16c870	189	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	190	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	191	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	192	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	5:b3b3370574cf	193
mbed_official	5:b3b3370574cf	194	#elif _CODE_PAGE == 866 /* Russian (OEM) */
mbed_official	5:b3b3370574cf	195	#define _DF1S 0
emilmont	1:46ce1e16c870	196	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	197	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	198	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	199	0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mbed_official	5:b3b3370574cf	200
mbed_official	5:b3b3370574cf	201	#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
mbed_official	5:b3b3370574cf	202	#define _DF1S 0
emilmont	1:46ce1e16c870	203	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	204	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	205	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	206	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
emilmont	1:46ce1e16c870	207
emilmont	1:46ce1e16c870	208	#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
mbed_official	5:b3b3370574cf	209	#define _DF1S 0
emilmont	1:46ce1e16c870	210	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	5:b3b3370574cf	211	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xA3,0xB4,0xB5,0xB6,0xB7,0xB8,0xA5,0xAA,0xBB,0xBC,0xBD,0xBC,0xAF, \
mbed_official	5:b3b3370574cf	212	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	213	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
emilmont	1:46ce1e16c870	214
emilmont	1:46ce1e16c870	215	#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
mbed_official	5:b3b3370574cf	216	#define _DF1S 0
emilmont	1:46ce1e16c870	217	#define _EXCVT {0x80,0x81,0x82,0x82,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x80,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
mbed_official	5:b3b3370574cf	218	0xA0,0xA2,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB2,0xA5,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xA3,0xBD,0xBD,0xAF, \
mbed_official	5:b3b3370574cf	219	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	220	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF}
emilmont	1:46ce1e16c870	221
emilmont	1:46ce1e16c870	222	#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
mbed_official	5:b3b3370574cf	223	#define _DF1S 0
emilmont	1:46ce1e16c870	224	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0xAd,0x9B,0x8C,0x9D,0xAE,0x9F, \
mbed_official	5:b3b3370574cf	225	0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	226	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	227	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
emilmont	1:46ce1e16c870	228
emilmont	1:46ce1e16c870	229	#elif _CODE_PAGE == 1253 /* Greek (Windows) */
mbed_official	5:b3b3370574cf	230	#define _DF1S 0
emilmont	1:46ce1e16c870	231	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	232	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	233	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xA2,0xB8,0xB9,0xBA, \
mbed_official	5:b3b3370574cf	234	0xE0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xFB,0xBC,0xFD,0xBF,0xFF}
emilmont	1:46ce1e16c870	235
emilmont	1:46ce1e16c870	236	#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
mbed_official	5:b3b3370574cf	237	#define _DF1S 0
emilmont	1:46ce1e16c870	238	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	239	0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	240	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	241	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
emilmont	1:46ce1e16c870	242
emilmont	1:46ce1e16c870	243	#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
mbed_official	5:b3b3370574cf	244	#define _DF1S 0
emilmont	1:46ce1e16c870	245	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	246	0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	247	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	248	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
emilmont	1:46ce1e16c870	249
emilmont	1:46ce1e16c870	250	#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
mbed_official	5:b3b3370574cf	251	#define _DF1S 0
emilmont	1:46ce1e16c870	252	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x8C,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	253	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	254	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	255	0x41,0xE1,0x41,0xE3,0xE4,0xE5,0xE6,0x43,0x45,0x45,0x45,0x45,0xEC,0xED,0x49,0x49,0xF0,0xF1,0xF2,0xF3,0x4F,0xF5,0xF6,0xF7,0xF8,0x55,0xFA,0x55,0x55,0xFD,0xFE,0xFF}
emilmont	1:46ce1e16c870	256
emilmont	1:46ce1e16c870	257	#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
mbed_official	5:b3b3370574cf	258	#define _DF1S 0
emilmont	1:46ce1e16c870	259	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	260	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xBC,0xBD,0xBE,0xAF, \
mbed_official	5:b3b3370574cf	261	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	262	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
emilmont	1:46ce1e16c870	263
emilmont	1:46ce1e16c870	264	#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
mbed_official	5:b3b3370574cf	265	#define _DF1S 0
emilmont	1:46ce1e16c870	266	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0xAC,0x9D,0x9E,0x9F, \
mbed_official	5:b3b3370574cf	267	0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mbed_official	5:b3b3370574cf	268	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mbed_official	5:b3b3370574cf	269	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xEC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xFE,0x9F}
mbed_official	5:b3b3370574cf	270
mbed_official	5:b3b3370574cf	271	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
emilmont	1:46ce1e16c870	272	#if _USE_LFN
emilmont	1:46ce1e16c870	273	#error Cannot use LFN feature without valid code page.
emilmont	1:46ce1e16c870	274	#endif
mbed_official	5:b3b3370574cf	275	#define _DF1S 0
emilmont	1:46ce1e16c870	276
emilmont	1:46ce1e16c870	277	#else
emilmont	1:46ce1e16c870	278	#error Unknown code page
emilmont	1:46ce1e16c870	279
emilmont	1:46ce1e16c870	280	#endif
emilmont	1:46ce1e16c870	281
emilmont	1:46ce1e16c870	282
emilmont	1:46ce1e16c870	283	/* Character code support macros */
mbed_official	5:b3b3370574cf	284	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
mbed_official	5:b3b3370574cf	285	#define IsLower(c) (((c)>='a')&&((c)<='z'))
mbed_official	5:b3b3370574cf	286	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
mbed_official	5:b3b3370574cf	287
mbed_official	5:b3b3370574cf	288	#if _DF1S /* Code page is DBCS */
mbed_official	5:b3b3370574cf	289
mbed_official	5:b3b3370574cf	290	#ifdef _DF2S /* Two 1st byte areas */
mbed_official	5:b3b3370574cf	291	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
mbed_official	5:b3b3370574cf	292	#else /* One 1st byte area */
mbed_official	5:b3b3370574cf	293	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
emilmont	1:46ce1e16c870	294	#endif
emilmont	1:46ce1e16c870	295
mbed_official	5:b3b3370574cf	296	#ifdef _DS3S /* Three 2nd byte areas */
mbed_official	5:b3b3370574cf	297	#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	298	#else /* Two 2nd byte areas */
mbed_official	5:b3b3370574cf	299	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
emilmont	1:46ce1e16c870	300	#endif
emilmont	1:46ce1e16c870	301
mbed_official	5:b3b3370574cf	302	#else /* Code page is SBCS */
mbed_official	5:b3b3370574cf	303
mbed_official	5:b3b3370574cf	304	#define IsDBCS1(c) 0
mbed_official	5:b3b3370574cf	305	#define IsDBCS2(c) 0
emilmont	1:46ce1e16c870	306
emilmont	1:46ce1e16c870	307	#endif /* _DF1S */
emilmont	1:46ce1e16c870	308
emilmont	1:46ce1e16c870	309
emilmont	1:46ce1e16c870	310	/* Name status flags */
mbed_official	5:b3b3370574cf	311	#define NSFLAG 11 /* Index of name status byte in fn[] */
mbed_official	5:b3b3370574cf	312	#define NS_LOSS 0x01 /* Out of 8.3 format */
mbed_official	5:b3b3370574cf	313	#define NS_LFN 0x02 /* Force to create LFN entry */
mbed_official	5:b3b3370574cf	314	#define NS_LAST 0x04 /* Last segment */
mbed_official	5:b3b3370574cf	315	#define NS_BODY 0x08 /* Lower case flag (body) */
mbed_official	5:b3b3370574cf	316	#define NS_EXT 0x10 /* Lower case flag (ext) */
mbed_official	5:b3b3370574cf	317	#define NS_DOT 0x20 /* Dot entry */
mbed_official	5:b3b3370574cf	318
mbed_official	5:b3b3370574cf	319
mbed_official	5:b3b3370574cf	320	/* FAT sub-type boundaries (Differ from specs but correct for real DOS/Windows) */
mbed_official	5:b3b3370574cf	321	#define MIN_FAT16 4086U /* Minimum number of clusters as FAT16 */
mbed_official	5:b3b3370574cf	322	#define MIN_FAT32 65526U /* Minimum number of clusters as FAT32 */
emilmont	1:46ce1e16c870	323
emilmont	1:46ce1e16c870	324
emilmont	1:46ce1e16c870	325	/* FatFs refers the members in the FAT structures as byte array instead of
emilmont	1:46ce1e16c870	326	/ structure member because the structure is not binary compatible between
emilmont	1:46ce1e16c870	327	/ different platforms */
emilmont	1:46ce1e16c870	328
mbed_official	5:b3b3370574cf	329	#define BS_jmpBoot 0 /* x86 jump instruction (3) */
mbed_official	5:b3b3370574cf	330	#define BS_OEMName 3 /* OEM name (8) */
mbed_official	5:b3b3370574cf	331	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
mbed_official	5:b3b3370574cf	332	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
mbed_official	5:b3b3370574cf	333	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
mbed_official	5:b3b3370574cf	334	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
mbed_official	5:b3b3370574cf	335	#define BPB_RootEntCnt 17 /* Number of root directory entries for FAT12/16 (2) */
mbed_official	5:b3b3370574cf	336	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
mbed_official	5:b3b3370574cf	337	#define BPB_Media 21 /* Media descriptor (1) */
mbed_official	5:b3b3370574cf	338	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
mbed_official	5:b3b3370574cf	339	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
mbed_official	5:b3b3370574cf	340	#define BPB_NumHeads 26 /* Number of heads (2) */
mbed_official	5:b3b3370574cf	341	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
mbed_official	5:b3b3370574cf	342	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
mbed_official	5:b3b3370574cf	343	#define BS_DrvNum 36 /* Physical drive number (2) */
mbed_official	5:b3b3370574cf	344	#define BS_BootSig 38 /* Extended boot signature (1) */
mbed_official	5:b3b3370574cf	345	#define BS_VolID 39 /* Volume serial number (4) */
mbed_official	5:b3b3370574cf	346	#define BS_VolLab 43 /* Volume label (8) */
mbed_official	5:b3b3370574cf	347	#define BS_FilSysType 54 /* File system type (1) */
mbed_official	5:b3b3370574cf	348	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
mbed_official	5:b3b3370574cf	349	#define BPB_ExtFlags 40 /* Extended flags (2) */
mbed_official	5:b3b3370574cf	350	#define BPB_FSVer 42 /* File system version (2) */
mbed_official	5:b3b3370574cf	351	#define BPB_RootClus 44 /* Root directory first cluster (4) */
mbed_official	5:b3b3370574cf	352	#define BPB_FSInfo 48 /* Offset of FSINFO sector (2) */
mbed_official	5:b3b3370574cf	353	#define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
mbed_official	5:b3b3370574cf	354	#define BS_DrvNum32 64 /* Physical drive number (2) */
mbed_official	5:b3b3370574cf	355	#define BS_BootSig32 66 /* Extended boot signature (1) */
mbed_official	5:b3b3370574cf	356	#define BS_VolID32 67 /* Volume serial number (4) */
mbed_official	5:b3b3370574cf	357	#define BS_VolLab32 71 /* Volume label (8) */
mbed_official	5:b3b3370574cf	358	#define BS_FilSysType32 82 /* File system type (1) */
mbed_official	5:b3b3370574cf	359	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
mbed_official	5:b3b3370574cf	360	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
mbed_official	5:b3b3370574cf	361	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
mbed_official	5:b3b3370574cf	362	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
mbed_official	5:b3b3370574cf	363	#define MBR_Table 446 /* MBR: Partition table offset (2) */
mbed_official	5:b3b3370574cf	364	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
mbed_official	5:b3b3370574cf	365	#define BS_55AA 510 /* Signature word (2) */
mbed_official	5:b3b3370574cf	366
mbed_official	5:b3b3370574cf	367	#define DIR_Name 0 /* Short file name (11) */
mbed_official	5:b3b3370574cf	368	#define DIR_Attr 11 /* Attribute (1) */
mbed_official	5:b3b3370574cf	369	#define DIR_NTres 12 /* Lower case flag (1) */
mbed_official	5:b3b3370574cf	370	#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
mbed_official	5:b3b3370574cf	371	#define DIR_CrtTime 14 /* Created time (2) */
mbed_official	5:b3b3370574cf	372	#define DIR_CrtDate 16 /* Created date (2) */
mbed_official	5:b3b3370574cf	373	#define DIR_LstAccDate 18 /* Last accessed date (2) */
mbed_official	5:b3b3370574cf	374	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
mbed_official	5:b3b3370574cf	375	#define DIR_WrtTime 22 /* Modified time (2) */
mbed_official	5:b3b3370574cf	376	#define DIR_WrtDate 24 /* Modified date (2) */
mbed_official	5:b3b3370574cf	377	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
mbed_official	5:b3b3370574cf	378	#define DIR_FileSize 28 /* File size (4) */
mbed_official	5:b3b3370574cf	379	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
mbed_official	5:b3b3370574cf	380	#define LDIR_Attr 11 /* LFN attribute (1) */
mbed_official	5:b3b3370574cf	381	#define LDIR_Type 12 /* LFN type (1) */
mbed_official	5:b3b3370574cf	382	#define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
mbed_official	5:b3b3370574cf	383	#define LDIR_FstClusLO 26 /* Must be zero (0) */
mbed_official	5:b3b3370574cf	384	#define SZ_DIRE 32 /* Size of a directory entry */
mbed_official	5:b3b3370574cf	385	#define LLEF 0x40 /* Last long entry flag in LDIR_Ord */
mbed_official	5:b3b3370574cf	386	#define DDEM 0xE5 /* Deleted directory entry mark at DIR_Name[0] */
mbed_official	5:b3b3370574cf	387	#define RDDEM 0x05 /* Replacement of the character collides with DDEM */
mbed_official	5:b3b3370574cf	388
mbed_official	5:b3b3370574cf	389
emilmont	1:46ce1e16c870	390
emilmont	1:46ce1e16c870	391
emilmont	1:46ce1e16c870	392	/------------------------------------------------------------/
emilmont	1:46ce1e16c870	393	/* Module private work area */
emilmont	1:46ce1e16c870	394	/------------------------------------------------------------/
mbed_official	5:b3b3370574cf	395	/* Remark: Uninitialized variables with static duration are
mbed_official	5:b3b3370574cf	396	/ guaranteed zero/null at start-up. If not, either the linker
mbed_official	5:b3b3370574cf	397	/ or start-up routine being used is out of ANSI-C standard.
emilmont	1:46ce1e16c870	398	*/
emilmont	1:46ce1e16c870	399
mbed_official	5:b3b3370574cf	400	#if _VOLUMES < 1 \|\| _VOLUMES > 9
mbed_official	5:b3b3370574cf	401	#error Wrong _VOLUMES setting
emilmont	1:46ce1e16c870	402	#endif
mbed_official	5:b3b3370574cf	403	static FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
mbed_official	5:b3b3370574cf	404	static WORD Fsid; /* File system mount ID */
mbed_official	5:b3b3370574cf	405
mbed_official	5:b3b3370574cf	406	#if _FS_RPATH && _VOLUMES >= 2
mbed_official	5:b3b3370574cf	407	static BYTE CurrVol; /* Current drive */
emilmont	1:46ce1e16c870	408	#endif
emilmont	1:46ce1e16c870	409
emilmont	1:46ce1e16c870	410	#if _FS_LOCK
mbed_official	5:b3b3370574cf	411	static FILESEM Files[_FS_LOCK]; /* Open object lock semaphores */
mbed_official	5:b3b3370574cf	412	#endif
mbed_official	5:b3b3370574cf	413
mbed_official	5:b3b3370574cf	414	#if _USE_LFN == 0 /* Non LFN feature */
mbed_official	5:b3b3370574cf	415	#define DEFINE_NAMEBUF BYTE sfn[12]
mbed_official	5:b3b3370574cf	416	#define INIT_BUF(dobj) (dobj).fn = sfn
mbed_official	5:b3b3370574cf	417	#define FREE_BUF()
mbed_official	5:b3b3370574cf	418	#else
mbed_official	5:b3b3370574cf	419	#if _MAX_LFN < 12 \|\| _MAX_LFN > 255
mbed_official	5:b3b3370574cf	420	#error Wrong _MAX_LFN setting
emilmont	1:46ce1e16c870	421	#endif
mbed_official	5:b3b3370574cf	422	#if _USE_LFN == 1 /* LFN feature with static working buffer */
mbed_official	5:b3b3370574cf	423	static WCHAR LfnBuf[_MAX_LFN + 1];
mbed_official	5:b3b3370574cf	424	#define DEFINE_NAMEBUF BYTE sfn[12]
mbed_official	5:b3b3370574cf	425	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
mbed_official	5:b3b3370574cf	426	#define FREE_BUF()
mbed_official	5:b3b3370574cf	427	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
mbed_official	5:b3b3370574cf	428	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN + 1]
mbed_official	5:b3b3370574cf	429	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
mbed_official	5:b3b3370574cf	430	#define FREE_BUF()
mbed_official	5:b3b3370574cf	431	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
mbed_official	5:b3b3370574cf	432	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR *lfn
mbed_official	5:b3b3370574cf	433	#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	434	#define FREE_BUF() ff_memfree(lfn)
emilmont	1:46ce1e16c870	435	#else
mbed_official	5:b3b3370574cf	436	#error Wrong _USE_LFN setting
mbed_official	5:b3b3370574cf	437	#endif
emilmont	1:46ce1e16c870	438	#endif
emilmont	1:46ce1e16c870	439
mbed_official	5:b3b3370574cf	440	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	441	static const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for extended characters */
mbed_official	5:b3b3370574cf	442	#endif
mbed_official	5:b3b3370574cf	443
mbed_official	5:b3b3370574cf	444
mbed_official	5:b3b3370574cf	445
emilmont	1:46ce1e16c870	446
emilmont	1:46ce1e16c870	447
emilmont	1:46ce1e16c870	448
emilmont	1:46ce1e16c870	449	/*--------------------------------------------------------------------------
emilmont	1:46ce1e16c870	450
emilmont	1:46ce1e16c870	451	Module Private Functions
emilmont	1:46ce1e16c870	452
emilmont	1:46ce1e16c870	453	---------------------------------------------------------------------------*/
emilmont	1:46ce1e16c870	454
emilmont	1:46ce1e16c870	455
emilmont	1:46ce1e16c870	456	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	457	/* String functions */
emilmont	1:46ce1e16c870	458	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	459
emilmont	1:46ce1e16c870	460	/* Copy memory to memory */
emilmont	1:46ce1e16c870	461	static
mbed_official	4:3ff2606d5713	462	void mem_cpy (void* dst, const void* src, UINT cnt) {
mbed_official	5:b3b3370574cf	463	BYTE d = (BYTE)dst;
mbed_official	5:b3b3370574cf	464	const BYTE s = (const BYTE)src;
emilmont	1:46ce1e16c870	465
emilmont	1:46ce1e16c870	466	#if _WORD_ACCESS == 1
mbed_official	5:b3b3370574cf	467	while (cnt >= sizeof (int)) {
mbed_official	5:b3b3370574cf	468	(int)d = (int)s;
mbed_official	5:b3b3370574cf	469	d += sizeof (int); s += sizeof (int);
mbed_official	5:b3b3370574cf	470	cnt -= sizeof (int);
mbed_official	5:b3b3370574cf	471	}
emilmont	1:46ce1e16c870	472	#endif
mbed_official	5:b3b3370574cf	473	while (cnt--)
mbed_official	5:b3b3370574cf	474	d++ = s++;
emilmont	1:46ce1e16c870	475	}
emilmont	1:46ce1e16c870	476
emilmont	1:46ce1e16c870	477	/* Fill memory */
emilmont	1:46ce1e16c870	478	static
mbed_official	4:3ff2606d5713	479	void mem_set (void* dst, int val, UINT cnt) {
mbed_official	5:b3b3370574cf	480	BYTE d = (BYTE)dst;
mbed_official	5:b3b3370574cf	481
mbed_official	5:b3b3370574cf	482	while (cnt--)
mbed_official	5:b3b3370574cf	483	*d++ = (BYTE)val;
emilmont	1:46ce1e16c870	484	}
emilmont	1:46ce1e16c870	485
emilmont	1:46ce1e16c870	486	/* Compare memory to memory */
emilmont	1:46ce1e16c870	487	static
mbed_official	4:3ff2606d5713	488	int mem_cmp (const void* dst, const void* src, UINT cnt) {
mbed_official	5:b3b3370574cf	489	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
mbed_official	5:b3b3370574cf	490	int r = 0;
mbed_official	5:b3b3370574cf	491
mbed_official	5:b3b3370574cf	492	while (cnt-- && (r = d++ - s++) == 0) ;
mbed_official	5:b3b3370574cf	493	return r;
emilmont	1:46ce1e16c870	494	}
emilmont	1:46ce1e16c870	495
emilmont	1:46ce1e16c870	496	/* Check if chr is contained in the string */
emilmont	1:46ce1e16c870	497	static
mbed_official	4:3ff2606d5713	498	int chk_chr (const char* str, int chr) {
mbed_official	5:b3b3370574cf	499	while (str && str != chr) str++;
mbed_official	5:b3b3370574cf	500	return *str;
emilmont	1:46ce1e16c870	501	}
emilmont	1:46ce1e16c870	502
emilmont	1:46ce1e16c870	503
emilmont	1:46ce1e16c870	504
mbed_official	5:b3b3370574cf	505
emilmont	1:46ce1e16c870	506	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	507	/* Request/Release grant to access the volume */
emilmont	1:46ce1e16c870	508	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	509	#if _FS_REENTRANT
emilmont	1:46ce1e16c870	510	static
emilmont	1:46ce1e16c870	511	int lock_fs (
mbed_official	5:b3b3370574cf	512	FATFS* fs /* File system object */
emilmont	1:46ce1e16c870	513	)
emilmont	1:46ce1e16c870	514	{
mbed_official	5:b3b3370574cf	515	return ff_req_grant(fs->sobj);
emilmont	1:46ce1e16c870	516	}
emilmont	1:46ce1e16c870	517
emilmont	1:46ce1e16c870	518
emilmont	1:46ce1e16c870	519	static
emilmont	1:46ce1e16c870	520	void unlock_fs (
mbed_official	5:b3b3370574cf	521	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	522	FRESULT res /* Result code to be returned */
emilmont	1:46ce1e16c870	523	)
emilmont	1:46ce1e16c870	524	{
mbed_official	5:b3b3370574cf	525	if (fs &&
mbed_official	5:b3b3370574cf	526	res != FR_NOT_ENABLED &&
mbed_official	5:b3b3370574cf	527	res != FR_INVALID_DRIVE &&
mbed_official	5:b3b3370574cf	528	res != FR_INVALID_OBJECT &&
mbed_official	5:b3b3370574cf	529	res != FR_TIMEOUT) {
mbed_official	5:b3b3370574cf	530	ff_rel_grant(fs->sobj);
mbed_official	5:b3b3370574cf	531	}
emilmont	1:46ce1e16c870	532	}
emilmont	1:46ce1e16c870	533	#endif
emilmont	1:46ce1e16c870	534
emilmont	1:46ce1e16c870	535
emilmont	1:46ce1e16c870	536
mbed_official	5:b3b3370574cf	537
emilmont	1:46ce1e16c870	538	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	539	/* File lock control functions */
emilmont	1:46ce1e16c870	540	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	541	#if _FS_LOCK
emilmont	1:46ce1e16c870	542
emilmont	1:46ce1e16c870	543	static
mbed_official	5:b3b3370574cf	544	FRESULT chk_lock ( /* Check if the file can be accessed */
mbed_official	5:b3b3370574cf	545	FATFS_DIR* dp, /* Directory object pointing the file to be checked */
mbed_official	5:b3b3370574cf	546	int acc /* Desired access type (0:Read, 1:Write, 2:Delete/Rename) */
emilmont	1:46ce1e16c870	547	)
emilmont	1:46ce1e16c870	548	{
mbed_official	5:b3b3370574cf	549	UINT i, be;
mbed_official	5:b3b3370574cf	550
mbed_official	5:b3b3370574cf	551	/* Search file semaphore table */
mbed_official	5:b3b3370574cf	552	for (i = be = 0; i < _FS_LOCK; i++) {
mbed_official	5:b3b3370574cf	553	if (Files[i].fs) { /* Existing entry */
mbed_official	5:b3b3370574cf	554	if (Files[i].fs == dp->fs && /* Check if the object matched with an open object */
mbed_official	5:b3b3370574cf	555	Files[i].clu == dp->sclust &&
mbed_official	5:b3b3370574cf	556	Files[i].idx == dp->index) break;
mbed_official	5:b3b3370574cf	557	} else { /* Blank entry */
mbed_official	5:b3b3370574cf	558	be = 1;
mbed_official	5:b3b3370574cf	559	}
mbed_official	5:b3b3370574cf	560	}
mbed_official	5:b3b3370574cf	561	if (i == _FS_LOCK) /* The object is not opened */
mbed_official	5:b3b3370574cf	562	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new object? */
mbed_official	5:b3b3370574cf	563
mbed_official	5:b3b3370574cf	564	/* The object has been opened. Reject any open against writing file and all write mode open */
mbed_official	5:b3b3370574cf	565	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
emilmont	1:46ce1e16c870	566	}
emilmont	1:46ce1e16c870	567
emilmont	1:46ce1e16c870	568
emilmont	1:46ce1e16c870	569	static
mbed_official	5:b3b3370574cf	570	int enq_lock (void) /* Check if an entry is available for a new object */
emilmont	1:46ce1e16c870	571	{
mbed_official	5:b3b3370574cf	572	UINT i;
mbed_official	5:b3b3370574cf	573
mbed_official	5:b3b3370574cf	574	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mbed_official	5:b3b3370574cf	575	return (i == _FS_LOCK) ? 0 : 1;
emilmont	1:46ce1e16c870	576	}
emilmont	1:46ce1e16c870	577
emilmont	1:46ce1e16c870	578
emilmont	1:46ce1e16c870	579	static
mbed_official	5:b3b3370574cf	580	UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */
mbed_official	5:b3b3370574cf	581	FATFS_DIR* dp, /* Directory object pointing the file to register or increment */
mbed_official	5:b3b3370574cf	582	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
emilmont	1:46ce1e16c870	583	)
emilmont	1:46ce1e16c870	584	{
mbed_official	5:b3b3370574cf	585	UINT i;
mbed_official	5:b3b3370574cf	586
mbed_official	5:b3b3370574cf	587
mbed_official	5:b3b3370574cf	588	for (i = 0; i < _FS_LOCK; i++) { /* Find the object */
mbed_official	5:b3b3370574cf	589	if (Files[i].fs == dp->fs &&
mbed_official	5:b3b3370574cf	590	Files[i].clu == dp->sclust &&
mbed_official	5:b3b3370574cf	591	Files[i].idx == dp->index) break;
mbed_official	5:b3b3370574cf	592	}
mbed_official	5:b3b3370574cf	593
mbed_official	5:b3b3370574cf	594	if (i == _FS_LOCK) { /* Not opened. Register it as new. */
mbed_official	5:b3b3370574cf	595	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mbed_official	5:b3b3370574cf	596	if (i == _FS_LOCK) return 0; /* No free entry to register (int err) */
mbed_official	5:b3b3370574cf	597	Files[i].fs = dp->fs;
mbed_official	5:b3b3370574cf	598	Files[i].clu = dp->sclust;
mbed_official	5:b3b3370574cf	599	Files[i].idx = dp->index;
mbed_official	5:b3b3370574cf	600	Files[i].ctr = 0;
mbed_official	5:b3b3370574cf	601	}
mbed_official	5:b3b3370574cf	602
mbed_official	5:b3b3370574cf	603	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
mbed_official	5:b3b3370574cf	604
mbed_official	5:b3b3370574cf	605	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
mbed_official	5:b3b3370574cf	606
mbed_official	5:b3b3370574cf	607	return i + 1;
emilmont	1:46ce1e16c870	608	}
emilmont	1:46ce1e16c870	609
emilmont	1:46ce1e16c870	610
emilmont	1:46ce1e16c870	611	static
mbed_official	5:b3b3370574cf	612	FRESULT dec_lock ( /* Decrement object open counter */
mbed_official	5:b3b3370574cf	613	UINT i /* Semaphore index (1..) */
emilmont	1:46ce1e16c870	614	)
emilmont	1:46ce1e16c870	615	{
mbed_official	5:b3b3370574cf	616	WORD n;
mbed_official	5:b3b3370574cf	617	FRESULT res;
mbed_official	5:b3b3370574cf	618
mbed_official	5:b3b3370574cf	619
mbed_official	5:b3b3370574cf	620	if (--i < _FS_LOCK) { /* Shift index number origin from 0 */
mbed_official	5:b3b3370574cf	621	n = Files[i].ctr;
mbed_official	5:b3b3370574cf	622	if (n == 0x100) n = 0; /* If write mode open, delete the entry */
mbed_official	5:b3b3370574cf	623	if (n) n--; /* Decrement read mode open count */
mbed_official	5:b3b3370574cf	624	Files[i].ctr = n;
mbed_official	5:b3b3370574cf	625	if (!n) Files[i].fs = 0; /* Delete the entry if open count gets zero */
mbed_official	5:b3b3370574cf	626	res = FR_OK;
mbed_official	5:b3b3370574cf	627	} else {
mbed_official	5:b3b3370574cf	628	res = FR_INT_ERR; /* Invalid index nunber */
mbed_official	5:b3b3370574cf	629	}
mbed_official	5:b3b3370574cf	630	return res;
emilmont	1:46ce1e16c870	631	}
emilmont	1:46ce1e16c870	632
emilmont	1:46ce1e16c870	633
emilmont	1:46ce1e16c870	634	static
mbed_official	5:b3b3370574cf	635	void clear_lock ( /* Clear lock entries of the volume */
mbed_official	5:b3b3370574cf	636	FATFS *fs
emilmont	1:46ce1e16c870	637	)
emilmont	1:46ce1e16c870	638	{
mbed_official	5:b3b3370574cf	639	UINT i;
mbed_official	5:b3b3370574cf	640
mbed_official	5:b3b3370574cf	641	for (i = 0; i < _FS_LOCK; i++) {
mbed_official	5:b3b3370574cf	642	if (Files[i].fs == fs) Files[i].fs = 0;
mbed_official	5:b3b3370574cf	643	}
emilmont	1:46ce1e16c870	644	}
emilmont	1:46ce1e16c870	645	#endif
emilmont	1:46ce1e16c870	646
emilmont	1:46ce1e16c870	647
emilmont	1:46ce1e16c870	648
mbed_official	5:b3b3370574cf	649
emilmont	1:46ce1e16c870	650	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	651	/* Move/Flush disk access window in the file system object */
emilmont	1:46ce1e16c870	652	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	653	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	654	static
mbed_official	5:b3b3370574cf	655	FRESULT sync_window (
mbed_official	5:b3b3370574cf	656	FATFS* fs /* File system object */
mbed_official	5:b3b3370574cf	657	)
mbed_official	5:b3b3370574cf	658	{
mbed_official	5:b3b3370574cf	659	DWORD wsect;
mbed_official	5:b3b3370574cf	660	UINT nf;
mbed_official	5:b3b3370574cf	661	FRESULT res = FR_OK;
mbed_official	5:b3b3370574cf	662
mbed_official	5:b3b3370574cf	663
mbed_official	5:b3b3370574cf	664	if (fs->wflag) { /* Write back the sector if it is dirty */
mbed_official	5:b3b3370574cf	665	wsect = fs->winsect; /* Current sector number */
mbed_official	5:b3b3370574cf	666	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK) {
mbed_official	5:b3b3370574cf	667	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	668	} else {
mbed_official	5:b3b3370574cf	669	fs->wflag = 0;
mbed_official	5:b3b3370574cf	670	if (wsect - fs->fatbase < fs->fsize) { /* Is it in the FAT area? */
mbed_official	5:b3b3370574cf	671	for (nf = fs->n_fats; nf >= 2; nf--) { /* Reflect the change to all FAT copies */
mbed_official	5:b3b3370574cf	672	wsect += fs->fsize;
mbed_official	5:b3b3370574cf	673	disk_write(fs->drv, fs->win, wsect, 1);
mbed_official	5:b3b3370574cf	674	}
mbed_official	5:b3b3370574cf	675	}
mbed_official	5:b3b3370574cf	676	}
mbed_official	5:b3b3370574cf	677	}
mbed_official	5:b3b3370574cf	678	return res;
mbed_official	5:b3b3370574cf	679	}
mbed_official	5:b3b3370574cf	680	#endif
mbed_official	5:b3b3370574cf	681
emilmont	1:46ce1e16c870	682
emilmont	1:46ce1e16c870	683	static
emilmont	1:46ce1e16c870	684	FRESULT move_window (
mbed_official	5:b3b3370574cf	685	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	686	DWORD sector /* Sector number to make appearance in the fs->win[] */
mbed_official	5:b3b3370574cf	687	)
emilmont	1:46ce1e16c870	688	{
mbed_official	5:b3b3370574cf	689	FRESULT res = FR_OK;
mbed_official	5:b3b3370574cf	690
mbed_official	5:b3b3370574cf	691
mbed_official	5:b3b3370574cf	692	if (sector != fs->winsect) { /* Window offset changed? */
emilmont	1:46ce1e16c870	693	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	694	res = sync_window(fs); /* Write-back changes */
emilmont	1:46ce1e16c870	695	#endif
mbed_official	5:b3b3370574cf	696	if (res == FR_OK) { /* Fill sector window with new data */
mbed_official	5:b3b3370574cf	697	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK) {
mbed_official	5:b3b3370574cf	698	sector = 0xFFFFFFFF; /* Invalidate window if data is not reliable */
mbed_official	5:b3b3370574cf	699	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	700	}
mbed_official	5:b3b3370574cf	701	fs->winsect = sector;
mbed_official	5:b3b3370574cf	702	}
mbed_official	5:b3b3370574cf	703	}
mbed_official	5:b3b3370574cf	704	return res;
emilmont	1:46ce1e16c870	705	}
emilmont	1:46ce1e16c870	706
emilmont	1:46ce1e16c870	707
emilmont	1:46ce1e16c870	708
emilmont	1:46ce1e16c870	709
emilmont	1:46ce1e16c870	710	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	711	/* Synchronize file system and strage device */
emilmont	1:46ce1e16c870	712	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	713	#if !_FS_READONLY
emilmont	1:46ce1e16c870	714	static
mbed_official	5:b3b3370574cf	715	FRESULT sync_fs ( /* FR_OK: successful, FR_DISK_ERR: failed */
mbed_official	5:b3b3370574cf	716	FATFS* fs /* File system object */
emilmont	1:46ce1e16c870	717	)
emilmont	1:46ce1e16c870	718	{
mbed_official	5:b3b3370574cf	719	FRESULT res;
mbed_official	5:b3b3370574cf	720
mbed_official	5:b3b3370574cf	721
mbed_official	5:b3b3370574cf	722	res = sync_window(fs);
mbed_official	5:b3b3370574cf	723	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	724	/* Update FSINFO sector if needed */
mbed_official	5:b3b3370574cf	725	if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) {
mbed_official	5:b3b3370574cf	726	/* Create FSINFO structure */
mbed_official	5:b3b3370574cf	727	mem_set(fs->win, 0, SS(fs));
mbed_official	5:b3b3370574cf	728	ST_WORD(fs->win + BS_55AA, 0xAA55);
mbed_official	5:b3b3370574cf	729	ST_DWORD(fs->win + FSI_LeadSig, 0x41615252);
mbed_official	5:b3b3370574cf	730	ST_DWORD(fs->win + FSI_StrucSig, 0x61417272);
mbed_official	5:b3b3370574cf	731	ST_DWORD(fs->win + FSI_Free_Count, fs->free_clust);
mbed_official	5:b3b3370574cf	732	ST_DWORD(fs->win + FSI_Nxt_Free, fs->last_clust);
mbed_official	5:b3b3370574cf	733	/* Write it into the FSINFO sector */
mbed_official	5:b3b3370574cf	734	fs->winsect = fs->volbase + 1;
mbed_official	5:b3b3370574cf	735	disk_write(fs->drv, fs->win, fs->winsect, 1);
mbed_official	5:b3b3370574cf	736	fs->fsi_flag = 0;
mbed_official	5:b3b3370574cf	737	}
mbed_official	5:b3b3370574cf	738	/* Make sure that no pending write process in the physical drive */
mbed_official	5:b3b3370574cf	739	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
mbed_official	5:b3b3370574cf	740	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	741	}
mbed_official	5:b3b3370574cf	742
mbed_official	5:b3b3370574cf	743	return res;
emilmont	1:46ce1e16c870	744	}
emilmont	1:46ce1e16c870	745	#endif
emilmont	1:46ce1e16c870	746
emilmont	1:46ce1e16c870	747
emilmont	1:46ce1e16c870	748
emilmont	1:46ce1e16c870	749
emilmont	1:46ce1e16c870	750	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	751	/* Get sector# from cluster# */
emilmont	1:46ce1e16c870	752	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	753	/* Hidden API for hacks and disk tools */
mbed_official	5:b3b3370574cf	754
mbed_official	5:b3b3370574cf	755	DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
mbed_official	5:b3b3370574cf	756	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	757	DWORD clst /* Cluster# to be converted */
emilmont	1:46ce1e16c870	758	)
emilmont	1:46ce1e16c870	759	{
mbed_official	5:b3b3370574cf	760	clst -= 2;
mbed_official	5:b3b3370574cf	761	if (clst >= fs->n_fatent - 2) return 0; /* Invalid cluster# */
mbed_official	5:b3b3370574cf	762	return clst * fs->csize + fs->database;
emilmont	1:46ce1e16c870	763	}
emilmont	1:46ce1e16c870	764
emilmont	1:46ce1e16c870	765
emilmont	1:46ce1e16c870	766
emilmont	1:46ce1e16c870	767
emilmont	1:46ce1e16c870	768	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	769	/* FAT access - Read value of a FAT entry */
emilmont	1:46ce1e16c870	770	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	771	/* Hidden API for hacks and disk tools */
mbed_official	5:b3b3370574cf	772
mbed_official	5:b3b3370574cf	773	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluster status */
mbed_official	5:b3b3370574cf	774	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	775	DWORD clst /* FAT index number (cluster number) to get the value */
emilmont	1:46ce1e16c870	776	)
emilmont	1:46ce1e16c870	777	{
mbed_official	5:b3b3370574cf	778	UINT wc, bc;
mbed_official	5:b3b3370574cf	779	BYTE *p;
mbed_official	5:b3b3370574cf	780	DWORD val;
mbed_official	5:b3b3370574cf	781
mbed_official	5:b3b3370574cf	782
mbed_official	5:b3b3370574cf	783	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
mbed_official	5:b3b3370574cf	784	val = 1; /* Internal error */
mbed_official	5:b3b3370574cf	785
mbed_official	5:b3b3370574cf	786	} else {
mbed_official	5:b3b3370574cf	787	val = 0xFFFFFFFF; /* Default value falls on disk error */
mbed_official	5:b3b3370574cf	788
mbed_official	5:b3b3370574cf	789	switch (fs->fs_type) {
mbed_official	5:b3b3370574cf	790	case FS_FAT12 :
mbed_official	5:b3b3370574cf	791	bc = (UINT)clst; bc += bc / 2;
mbed_official	5:b3b3370574cf	792	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
mbed_official	5:b3b3370574cf	793	wc = fs->win[bc++ % SS(fs)];
mbed_official	5:b3b3370574cf	794	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
mbed_official	5:b3b3370574cf	795	wc \|= fs->win[bc % SS(fs)] << 8;
mbed_official	5:b3b3370574cf	796	val = clst & 1 ? wc >> 4 : (wc & 0xFFF);
mbed_official	5:b3b3370574cf	797	break;
mbed_official	5:b3b3370574cf	798
mbed_official	5:b3b3370574cf	799	case FS_FAT16 :
mbed_official	5:b3b3370574cf	800	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break;
mbed_official	5:b3b3370574cf	801	p = &fs->win[clst * 2 % SS(fs)];
mbed_official	5:b3b3370574cf	802	val = LD_WORD(p);
mbed_official	5:b3b3370574cf	803	break;
mbed_official	5:b3b3370574cf	804
mbed_official	5:b3b3370574cf	805	case FS_FAT32 :
mbed_official	5:b3b3370574cf	806	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;
mbed_official	5:b3b3370574cf	807	p = &fs->win[clst * 4 % SS(fs)];
mbed_official	5:b3b3370574cf	808	val = LD_DWORD(p) & 0x0FFFFFFF;
mbed_official	5:b3b3370574cf	809	break;
mbed_official	5:b3b3370574cf	810
mbed_official	5:b3b3370574cf	811	default:
mbed_official	5:b3b3370574cf	812	val = 1; /* Internal error */
mbed_official	5:b3b3370574cf	813	}
mbed_official	5:b3b3370574cf	814	}
mbed_official	5:b3b3370574cf	815
mbed_official	5:b3b3370574cf	816	return val;
emilmont	1:46ce1e16c870	817	}
emilmont	1:46ce1e16c870	818
emilmont	1:46ce1e16c870	819
emilmont	1:46ce1e16c870	820
emilmont	1:46ce1e16c870	821
emilmont	1:46ce1e16c870	822	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	823	/* FAT access - Change value of a FAT entry */
emilmont	1:46ce1e16c870	824	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	825	/* Hidden API for hacks and disk tools */
mbed_official	5:b3b3370574cf	826
emilmont	1:46ce1e16c870	827	#if !_FS_READONLY
emilmont	1:46ce1e16c870	828	FRESULT put_fat (
mbed_official	5:b3b3370574cf	829	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	830	DWORD clst, /* FAT index number (cluster number) to be changed */
mbed_official	5:b3b3370574cf	831	DWORD val /* New value to be set to the entry */
emilmont	1:46ce1e16c870	832	)
emilmont	1:46ce1e16c870	833	{
mbed_official	5:b3b3370574cf	834	UINT bc;
mbed_official	5:b3b3370574cf	835	BYTE *p;
mbed_official	5:b3b3370574cf	836	FRESULT res;
mbed_official	5:b3b3370574cf	837
mbed_official	5:b3b3370574cf	838
mbed_official	5:b3b3370574cf	839	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
mbed_official	5:b3b3370574cf	840	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	841
mbed_official	5:b3b3370574cf	842	} else {
mbed_official	5:b3b3370574cf	843	switch (fs->fs_type) {
mbed_official	5:b3b3370574cf	844	case FS_FAT12 :
mbed_official	5:b3b3370574cf	845	bc = (UINT)clst; bc += bc / 2;
mbed_official	5:b3b3370574cf	846	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mbed_official	5:b3b3370574cf	847	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	848	p = &fs->win[bc++ % SS(fs)];
mbed_official	5:b3b3370574cf	849	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
mbed_official	5:b3b3370574cf	850	fs->wflag = 1;
mbed_official	5:b3b3370574cf	851	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mbed_official	5:b3b3370574cf	852	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	853	p = &fs->win[bc % SS(fs)];
mbed_official	5:b3b3370574cf	854	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
mbed_official	5:b3b3370574cf	855	fs->wflag = 1;
mbed_official	5:b3b3370574cf	856	break;
mbed_official	5:b3b3370574cf	857
mbed_official	5:b3b3370574cf	858	case FS_FAT16 :
mbed_official	5:b3b3370574cf	859	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
mbed_official	5:b3b3370574cf	860	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	861	p = &fs->win[clst * 2 % SS(fs)];
mbed_official	5:b3b3370574cf	862	ST_WORD(p, (WORD)val);
mbed_official	5:b3b3370574cf	863	fs->wflag = 1;
mbed_official	5:b3b3370574cf	864	break;
mbed_official	5:b3b3370574cf	865
mbed_official	5:b3b3370574cf	866	case FS_FAT32 :
mbed_official	5:b3b3370574cf	867	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
mbed_official	5:b3b3370574cf	868	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	869	p = &fs->win[clst * 4 % SS(fs)];
mbed_official	5:b3b3370574cf	870	val \|= LD_DWORD(p) & 0xF0000000;
mbed_official	5:b3b3370574cf	871	ST_DWORD(p, val);
mbed_official	5:b3b3370574cf	872	fs->wflag = 1;
mbed_official	5:b3b3370574cf	873	break;
mbed_official	5:b3b3370574cf	874
mbed_official	5:b3b3370574cf	875	default :
mbed_official	5:b3b3370574cf	876	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	877	}
mbed_official	5:b3b3370574cf	878	}
mbed_official	5:b3b3370574cf	879
mbed_official	5:b3b3370574cf	880	return res;
emilmont	1:46ce1e16c870	881	}
emilmont	1:46ce1e16c870	882	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	883
emilmont	1:46ce1e16c870	884
emilmont	1:46ce1e16c870	885
emilmont	1:46ce1e16c870	886
emilmont	1:46ce1e16c870	887	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	888	/* FAT handling - Remove a cluster chain */
emilmont	1:46ce1e16c870	889	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	890	#if !_FS_READONLY
emilmont	1:46ce1e16c870	891	static
emilmont	1:46ce1e16c870	892	FRESULT remove_chain (
mbed_official	5:b3b3370574cf	893	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	894	DWORD clst /* Cluster# to remove a chain from */
emilmont	1:46ce1e16c870	895	)
emilmont	1:46ce1e16c870	896	{
mbed_official	5:b3b3370574cf	897	FRESULT res;
mbed_official	5:b3b3370574cf	898	DWORD nxt;
mbed_official	5:b3b3370574cf	899	#if _USE_TRIM
mbed_official	5:b3b3370574cf	900	DWORD scl = clst, ecl = clst, rt[2];
emilmont	1:46ce1e16c870	901	#endif
emilmont	1:46ce1e16c870	902
mbed_official	5:b3b3370574cf	903	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
mbed_official	5:b3b3370574cf	904	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	905
mbed_official	5:b3b3370574cf	906	} else {
mbed_official	5:b3b3370574cf	907	res = FR_OK;
mbed_official	5:b3b3370574cf	908	while (clst < fs->n_fatent) { /* Not a last link? */
mbed_official	5:b3b3370574cf	909	nxt = get_fat(fs, clst); /* Get cluster status */
mbed_official	5:b3b3370574cf	910	if (nxt == 0) break; /* Empty cluster? */
mbed_official	5:b3b3370574cf	911	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
mbed_official	5:b3b3370574cf	912	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
mbed_official	5:b3b3370574cf	913	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
mbed_official	5:b3b3370574cf	914	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	915	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSINFO */
mbed_official	5:b3b3370574cf	916	fs->free_clust++;
mbed_official	5:b3b3370574cf	917	fs->fsi_flag \|= 1;
mbed_official	5:b3b3370574cf	918	}
mbed_official	5:b3b3370574cf	919	#if _USE_TRIM
mbed_official	5:b3b3370574cf	920	if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
mbed_official	5:b3b3370574cf	921	ecl = nxt;
mbed_official	5:b3b3370574cf	922	} else { /* End of contiguous clusters */
mbed_official	5:b3b3370574cf	923	rt[0] = clust2sect(fs, scl); /* Start sector */
mbed_official	5:b3b3370574cf	924	rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
mbed_official	5:b3b3370574cf	925	disk_ioctl(fs->drv, CTRL_TRIM, rt); /* Erase the block */
mbed_official	5:b3b3370574cf	926	scl = ecl = nxt;
mbed_official	5:b3b3370574cf	927	}
emilmont	1:46ce1e16c870	928	#endif
mbed_official	5:b3b3370574cf	929	clst = nxt; /* Next cluster */
mbed_official	5:b3b3370574cf	930	}
mbed_official	5:b3b3370574cf	931	}
mbed_official	5:b3b3370574cf	932
mbed_official	5:b3b3370574cf	933	return res;
emilmont	1:46ce1e16c870	934	}
emilmont	1:46ce1e16c870	935	#endif
emilmont	1:46ce1e16c870	936
emilmont	1:46ce1e16c870	937
emilmont	1:46ce1e16c870	938
emilmont	1:46ce1e16c870	939
emilmont	1:46ce1e16c870	940	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	941	/* FAT handling - Stretch or Create a cluster chain */
emilmont	1:46ce1e16c870	942	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	943	#if !_FS_READONLY
emilmont	1:46ce1e16c870	944	static
mbed_official	5:b3b3370574cf	945	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
mbed_official	5:b3b3370574cf	946	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	947	DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
emilmont	1:46ce1e16c870	948	)
emilmont	1:46ce1e16c870	949	{
mbed_official	5:b3b3370574cf	950	DWORD cs, ncl, scl;
mbed_official	5:b3b3370574cf	951	FRESULT res;
mbed_official	5:b3b3370574cf	952
mbed_official	5:b3b3370574cf	953
mbed_official	5:b3b3370574cf	954	if (clst == 0) { /* Create a new chain */
mbed_official	5:b3b3370574cf	955	scl = fs->last_clust; /* Get suggested start point */
mbed_official	5:b3b3370574cf	956	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
mbed_official	5:b3b3370574cf	957	}
mbed_official	5:b3b3370574cf	958	else { /* Stretch the current chain */
mbed_official	5:b3b3370574cf	959	cs = get_fat(fs, clst); /* Check the cluster status */
mbed_official	5:b3b3370574cf	960	if (cs < 2) return 1; /* Invalid value */
mbed_official	5:b3b3370574cf	961	if (cs == 0xFFFFFFFF) return cs; /* A disk error occurred */
mbed_official	5:b3b3370574cf	962	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
mbed_official	5:b3b3370574cf	963	scl = clst;
mbed_official	5:b3b3370574cf	964	}
mbed_official	5:b3b3370574cf	965
mbed_official	5:b3b3370574cf	966	ncl = scl; /* Start cluster */
mbed_official	5:b3b3370574cf	967	for (;;) {
mbed_official	5:b3b3370574cf	968	ncl++; /* Next cluster */
mbed_official	5:b3b3370574cf	969	if (ncl >= fs->n_fatent) { /* Check wrap around */
mbed_official	5:b3b3370574cf	970	ncl = 2;
mbed_official	5:b3b3370574cf	971	if (ncl > scl) return 0; /* No free cluster */
mbed_official	5:b3b3370574cf	972	}
mbed_official	5:b3b3370574cf	973	cs = get_fat(fs, ncl); /* Get the cluster status */
mbed_official	5:b3b3370574cf	974	if (cs == 0) break; /* Found a free cluster */
mbed_official	5:b3b3370574cf	975	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
mbed_official	5:b3b3370574cf	976	return cs;
mbed_official	5:b3b3370574cf	977	if (ncl == scl) return 0; /* No free cluster */
mbed_official	5:b3b3370574cf	978	}
mbed_official	5:b3b3370574cf	979
mbed_official	5:b3b3370574cf	980	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
mbed_official	5:b3b3370574cf	981	if (res == FR_OK && clst != 0) {
mbed_official	5:b3b3370574cf	982	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
mbed_official	5:b3b3370574cf	983	}
mbed_official	5:b3b3370574cf	984	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	985	fs->last_clust = ncl; /* Update FSINFO */
mbed_official	5:b3b3370574cf	986	if (fs->free_clust != 0xFFFFFFFF) {
mbed_official	5:b3b3370574cf	987	fs->free_clust--;
mbed_official	5:b3b3370574cf	988	fs->fsi_flag \|= 1;
mbed_official	5:b3b3370574cf	989	}
mbed_official	5:b3b3370574cf	990	} else {
mbed_official	5:b3b3370574cf	991	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
mbed_official	5:b3b3370574cf	992	}
mbed_official	5:b3b3370574cf	993
mbed_official	5:b3b3370574cf	994	return ncl; /* Return new cluster number or error code */
emilmont	1:46ce1e16c870	995	}
emilmont	1:46ce1e16c870	996	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	997
emilmont	1:46ce1e16c870	998
emilmont	1:46ce1e16c870	999
mbed_official	5:b3b3370574cf	1000
emilmont	1:46ce1e16c870	1001	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1002	/* FAT handling - Convert offset into cluster with link map table */
emilmont	1:46ce1e16c870	1003	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1004
emilmont	1:46ce1e16c870	1005	#if _USE_FASTSEEK
emilmont	1:46ce1e16c870	1006	static
mbed_official	5:b3b3370574cf	1007	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
mbed_official	5:b3b3370574cf	1008	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	1009	DWORD ofs /* File offset to be converted to cluster# */
emilmont	1:46ce1e16c870	1010	)
emilmont	1:46ce1e16c870	1011	{
mbed_official	5:b3b3370574cf	1012	DWORD cl, ncl, *tbl;
mbed_official	5:b3b3370574cf	1013
mbed_official	5:b3b3370574cf	1014
mbed_official	5:b3b3370574cf	1015	tbl = fp->cltbl + 1; /* Top of CLMT */
mbed_official	5:b3b3370574cf	1016	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
mbed_official	5:b3b3370574cf	1017	for (;;) {
mbed_official	5:b3b3370574cf	1018	ncl = tbl++; / Number of cluters in the fragment */
mbed_official	5:b3b3370574cf	1019	if (!ncl) return 0; /* End of table? (error) */
mbed_official	5:b3b3370574cf	1020	if (cl < ncl) break; /* In this fragment? */
mbed_official	5:b3b3370574cf	1021	cl -= ncl; tbl++; /* Next fragment */
mbed_official	5:b3b3370574cf	1022	}
mbed_official	5:b3b3370574cf	1023	return cl + tbl; / Return the cluster number */
emilmont	1:46ce1e16c870	1024	}
mbed_official	5:b3b3370574cf	1025	#endif /* _USE_FASTSEEK */
mbed_official	5:b3b3370574cf	1026
emilmont	1:46ce1e16c870	1027
emilmont	1:46ce1e16c870	1028
emilmont	1:46ce1e16c870	1029
emilmont	1:46ce1e16c870	1030	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1031	/* Directory handling - Set directory index */
emilmont	1:46ce1e16c870	1032	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1033
emilmont	1:46ce1e16c870	1034	static
emilmont	1:46ce1e16c870	1035	FRESULT dir_sdi (
mbed_official	5:b3b3370574cf	1036	FATFS_DIR* dp, /* Pointer to directory object */
mbed_official	5:b3b3370574cf	1037	UINT idx /* Index of directory table */
emilmont	1:46ce1e16c870	1038	)
emilmont	1:46ce1e16c870	1039	{
mbed_official	5:b3b3370574cf	1040	DWORD clst, sect;
mbed_official	5:b3b3370574cf	1041	UINT ic;
mbed_official	5:b3b3370574cf	1042
mbed_official	5:b3b3370574cf	1043
mbed_official	5:b3b3370574cf	1044	dp->index = (WORD)idx; /* Current index */
mbed_official	5:b3b3370574cf	1045	clst = dp->sclust; /* Table start cluster (0:root) */
mbed_official	5:b3b3370574cf	1046	if (clst == 1 \|\| clst >= dp->fs->n_fatent) /* Check start cluster range */
mbed_official	5:b3b3370574cf	1047	return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1048	if (!clst && dp->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
mbed_official	5:b3b3370574cf	1049	clst = dp->fs->dirbase;
mbed_official	5:b3b3370574cf	1050
mbed_official	5:b3b3370574cf	1051	if (clst == 0) { /* Static table (root-directory in FAT12/16) */
mbed_official	5:b3b3370574cf	1052	if (idx >= dp->fs->n_rootdir) /* Is index out of range? */
mbed_official	5:b3b3370574cf	1053	return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1054	sect = dp->fs->dirbase;
mbed_official	5:b3b3370574cf	1055	}
mbed_official	5:b3b3370574cf	1056	else { /* Dynamic table (root-directory in FAT32 or sub-directory) */
mbed_official	5:b3b3370574cf	1057	ic = SS(dp->fs) / SZ_DIRE * dp->fs->csize; /* Entries per cluster */
mbed_official	5:b3b3370574cf	1058	while (idx >= ic) { /* Follow cluster chain */
mbed_official	5:b3b3370574cf	1059	clst = get_fat(dp->fs, clst); /* Get next cluster */
mbed_official	5:b3b3370574cf	1060	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
mbed_official	5:b3b3370574cf	1061	if (clst < 2 \|\| clst >= dp->fs->n_fatent) /* Reached to end of table or internal error */
mbed_official	5:b3b3370574cf	1062	return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1063	idx -= ic;
mbed_official	5:b3b3370574cf	1064	}
mbed_official	5:b3b3370574cf	1065	sect = clust2sect(dp->fs, clst);
mbed_official	5:b3b3370574cf	1066	}
mbed_official	5:b3b3370574cf	1067	dp->clust = clst; /* Current cluster# */
mbed_official	5:b3b3370574cf	1068	if (!sect) return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1069	dp->sect = sect + idx / (SS(dp->fs) / SZ_DIRE); /* Sector# of the directory entry */
mbed_official	5:b3b3370574cf	1070	dp->FATFS_DIR = dp->fs->win + (idx % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Ptr to the entry in the sector */
mbed_official	5:b3b3370574cf	1071
mbed_official	5:b3b3370574cf	1072	return FR_OK;
emilmont	1:46ce1e16c870	1073	}
emilmont	1:46ce1e16c870	1074
emilmont	1:46ce1e16c870	1075
emilmont	1:46ce1e16c870	1076
emilmont	1:46ce1e16c870	1077
emilmont	1:46ce1e16c870	1078	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1079	/* Directory handling - Move directory table index next */
emilmont	1:46ce1e16c870	1080	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1081
emilmont	1:46ce1e16c870	1082	static
mbed_official	5:b3b3370574cf	1083	FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
mbed_official	5:b3b3370574cf	1084	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1085	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
emilmont	1:46ce1e16c870	1086	)
emilmont	1:46ce1e16c870	1087	{
mbed_official	5:b3b3370574cf	1088	DWORD clst;
mbed_official	5:b3b3370574cf	1089	UINT i;
mbed_official	5:b3b3370574cf	1090	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	1091	UINT c;
mbed_official	5:b3b3370574cf	1092	#endif
mbed_official	5:b3b3370574cf	1093
mbed_official	5:b3b3370574cf	1094
mbed_official	5:b3b3370574cf	1095	i = dp->index + 1;
mbed_official	5:b3b3370574cf	1096	if (!(i & 0xFFFF) \|\| !dp->sect) /* Report EOT when index has reached 65535 */
mbed_official	5:b3b3370574cf	1097	return FR_NO_FILE;
mbed_official	5:b3b3370574cf	1098
mbed_official	5:b3b3370574cf	1099	if (!(i % (SS(dp->fs) / SZ_DIRE))) { /* Sector changed? */
mbed_official	5:b3b3370574cf	1100	dp->sect++; /* Next sector */
mbed_official	5:b3b3370574cf	1101
mbed_official	5:b3b3370574cf	1102	if (!dp->clust) { /* Static table */
mbed_official	5:b3b3370574cf	1103	if (i >= dp->fs->n_rootdir) /* Report EOT if it reached end of static table */
mbed_official	5:b3b3370574cf	1104	return FR_NO_FILE;
mbed_official	5:b3b3370574cf	1105	}
mbed_official	5:b3b3370574cf	1106	else { /* Dynamic table */
mbed_official	5:b3b3370574cf	1107	if (((i / (SS(dp->fs) / SZ_DIRE)) & (dp->fs->csize - 1)) == 0) { /* Cluster changed? */
mbed_official	5:b3b3370574cf	1108	clst = get_fat(dp->fs, dp->clust); /* Get next cluster */
mbed_official	5:b3b3370574cf	1109	if (clst <= 1) return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1110	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	1111	if (clst >= dp->fs->n_fatent) { /* If it reached end of dynamic table, */
emilmont	1:46ce1e16c870	1112	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	1113	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT */
mbed_official	5:b3b3370574cf	1114	clst = create_chain(dp->fs, dp->clust); /* Stretch cluster chain */
mbed_official	5:b3b3370574cf	1115	if (clst == 0) return FR_DENIED; /* No free cluster */
mbed_official	5:b3b3370574cf	1116	if (clst == 1) return FR_INT_ERR;
mbed_official	5:b3b3370574cf	1117	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	1118	/* Clean-up stretched table */
mbed_official	5:b3b3370574cf	1119	if (sync_window(dp->fs)) return FR_DISK_ERR;/* Flush disk access window */
mbed_official	5:b3b3370574cf	1120	mem_set(dp->fs->win, 0, SS(dp->fs)); /* Clear window buffer */
mbed_official	5:b3b3370574cf	1121	dp->fs->winsect = clust2sect(dp->fs, clst); /* Cluster start sector */
mbed_official	5:b3b3370574cf	1122	for (c = 0; c < dp->fs->csize; c++) { /* Fill the new cluster with 0 */
mbed_official	5:b3b3370574cf	1123	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1124	if (sync_window(dp->fs)) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	1125	dp->fs->winsect++;
mbed_official	5:b3b3370574cf	1126	}
mbed_official	5:b3b3370574cf	1127	dp->fs->winsect -= c; /* Rewind window offset */
emilmont	1:46ce1e16c870	1128	#else
mbed_official	5:b3b3370574cf	1129	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT (this is to suppress warning) */
mbed_official	5:b3b3370574cf	1130	return FR_NO_FILE; /* Report EOT */
emilmont	1:46ce1e16c870	1131	#endif
mbed_official	5:b3b3370574cf	1132	}
mbed_official	5:b3b3370574cf	1133	dp->clust = clst; /* Initialize data for new cluster */
mbed_official	5:b3b3370574cf	1134	dp->sect = clust2sect(dp->fs, clst);
mbed_official	5:b3b3370574cf	1135	}
mbed_official	5:b3b3370574cf	1136	}
mbed_official	5:b3b3370574cf	1137	}
mbed_official	5:b3b3370574cf	1138
mbed_official	5:b3b3370574cf	1139	dp->index = (WORD)i; /* Current index */
mbed_official	5:b3b3370574cf	1140	dp->FATFS_DIR = dp->fs->win + (i % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Current entry in the window */
mbed_official	5:b3b3370574cf	1141
mbed_official	5:b3b3370574cf	1142	return FR_OK;
emilmont	1:46ce1e16c870	1143	}
emilmont	1:46ce1e16c870	1144
emilmont	1:46ce1e16c870	1145
emilmont	1:46ce1e16c870	1146
emilmont	1:46ce1e16c870	1147
emilmont	1:46ce1e16c870	1148	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1149	/* Directory handling - Reserve directory entry */
mbed_official	5:b3b3370574cf	1150	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1151
mbed_official	5:b3b3370574cf	1152	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	1153	static
mbed_official	5:b3b3370574cf	1154	FRESULT dir_alloc (
mbed_official	5:b3b3370574cf	1155	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1156	UINT nent /* Number of contiguous entries to allocate (1-21) */
mbed_official	5:b3b3370574cf	1157	)
mbed_official	5:b3b3370574cf	1158	{
mbed_official	5:b3b3370574cf	1159	FRESULT res;
mbed_official	5:b3b3370574cf	1160	UINT n;
mbed_official	5:b3b3370574cf	1161
mbed_official	5:b3b3370574cf	1162
mbed_official	5:b3b3370574cf	1163	res = dir_sdi(dp, 0);
mbed_official	5:b3b3370574cf	1164	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1165	n = 0;
mbed_official	5:b3b3370574cf	1166	do {
mbed_official	5:b3b3370574cf	1167	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1168	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	1169	if (dp->FATFS_DIR[0] == DDEM \|\| dp->FATFS_DIR[0] == 0) { /* Is it a free entry? */
mbed_official	5:b3b3370574cf	1170	if (++n == nent) break; /* A block of contiguous free entries is found */
mbed_official	5:b3b3370574cf	1171	} else {
mbed_official	5:b3b3370574cf	1172	n = 0; /* Not a blank entry. Restart to search */
mbed_official	5:b3b3370574cf	1173	}
mbed_official	5:b3b3370574cf	1174	res = dir_next(dp, 1); /* Next entry with table stretch enabled */
mbed_official	5:b3b3370574cf	1175	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	1176	}
mbed_official	5:b3b3370574cf	1177	if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */
mbed_official	5:b3b3370574cf	1178	return res;
mbed_official	5:b3b3370574cf	1179	}
mbed_official	5:b3b3370574cf	1180	#endif
mbed_official	5:b3b3370574cf	1181
mbed_official	5:b3b3370574cf	1182
mbed_official	5:b3b3370574cf	1183
mbed_official	5:b3b3370574cf	1184
mbed_official	5:b3b3370574cf	1185	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1186	/* Directory handling - Load/Store start cluster number */
emilmont	1:46ce1e16c870	1187	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1188
emilmont	1:46ce1e16c870	1189	static
emilmont	1:46ce1e16c870	1190	DWORD ld_clust (
mbed_official	5:b3b3370574cf	1191	FATFS* fs, /* Pointer to the fs object */
mbed_official	5:b3b3370574cf	1192	BYTE* FATFS_DIR /* Pointer to the directory entry */
emilmont	1:46ce1e16c870	1193	)
emilmont	1:46ce1e16c870	1194	{
mbed_official	5:b3b3370574cf	1195	DWORD cl;
mbed_official	5:b3b3370574cf	1196
mbed_official	5:b3b3370574cf	1197	cl = LD_WORD(FATFS_DIR + DIR_FstClusLO);
mbed_official	5:b3b3370574cf	1198	if (fs->fs_type == FS_FAT32)
mbed_official	5:b3b3370574cf	1199	cl \|= (DWORD)LD_WORD(FATFS_DIR + DIR_FstClusHI) << 16;
mbed_official	5:b3b3370574cf	1200
mbed_official	5:b3b3370574cf	1201	return cl;
emilmont	1:46ce1e16c870	1202	}
emilmont	1:46ce1e16c870	1203
emilmont	1:46ce1e16c870	1204
emilmont	1:46ce1e16c870	1205	#if !_FS_READONLY
emilmont	1:46ce1e16c870	1206	static
emilmont	1:46ce1e16c870	1207	void st_clust (
mbed_official	5:b3b3370574cf	1208	BYTE* FATFS_DIR, /* Pointer to the directory entry */
mbed_official	5:b3b3370574cf	1209	DWORD cl /* Value to be set */
emilmont	1:46ce1e16c870	1210	)
emilmont	1:46ce1e16c870	1211	{
mbed_official	5:b3b3370574cf	1212	ST_WORD(FATFS_DIR + DIR_FstClusLO, cl);
mbed_official	5:b3b3370574cf	1213	ST_WORD(FATFS_DIR + DIR_FstClusHI, cl >> 16);
emilmont	1:46ce1e16c870	1214	}
emilmont	1:46ce1e16c870	1215	#endif
emilmont	1:46ce1e16c870	1216
emilmont	1:46ce1e16c870	1217
emilmont	1:46ce1e16c870	1218
mbed_official	5:b3b3370574cf	1219
emilmont	1:46ce1e16c870	1220	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1221	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
emilmont	1:46ce1e16c870	1222	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1223	#if _USE_LFN
emilmont	1:46ce1e16c870	1224	static
mbed_official	5:b3b3370574cf	1225	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	1226
emilmont	1:46ce1e16c870	1227
emilmont	1:46ce1e16c870	1228	static
mbed_official	5:b3b3370574cf	1229	int cmp_lfn ( /* 1:Matched, 0:Not matched */
mbed_official	5:b3b3370574cf	1230	WCHAR* lfnbuf, /* Pointer to the LFN to be compared */
mbed_official	5:b3b3370574cf	1231	BYTE* FATFS_DIR /* Pointer to the directory entry containing a part of LFN */
emilmont	1:46ce1e16c870	1232	)
emilmont	1:46ce1e16c870	1233	{
mbed_official	5:b3b3370574cf	1234	UINT i, s;
mbed_official	5:b3b3370574cf	1235	WCHAR wc, uc;
mbed_official	5:b3b3370574cf	1236
mbed_official	5:b3b3370574cf	1237
mbed_official	5:b3b3370574cf	1238	i = ((FATFS_DIR[LDIR_Ord] & ~LLEF) - 1) * 13; /* Get offset in the LFN buffer */
mbed_official	5:b3b3370574cf	1239	s = 0; wc = 1;
mbed_official	5:b3b3370574cf	1240	do {
mbed_official	5:b3b3370574cf	1241	uc = LD_WORD(FATFS_DIR + LfnOfs[s]); /* Pick an LFN character from the entry */
mbed_official	5:b3b3370574cf	1242	if (wc) { /* Last character has not been processed */
mbed_official	5:b3b3370574cf	1243	wc = ff_wtoupper(uc); /* Convert it to upper case */
mbed_official	5:b3b3370574cf	1244	if (i >= _MAX_LFN \|\| wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
mbed_official	5:b3b3370574cf	1245	return 0; /* Not matched */
mbed_official	5:b3b3370574cf	1246	} else {
mbed_official	5:b3b3370574cf	1247	if (uc != 0xFFFF) return 0; /* Check filler */
mbed_official	5:b3b3370574cf	1248	}
mbed_official	5:b3b3370574cf	1249	} while (++s < 13); /* Repeat until all characters in the entry are checked */
mbed_official	5:b3b3370574cf	1250
mbed_official	5:b3b3370574cf	1251	if ((FATFS_DIR[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) /* Last segment matched but different length */
mbed_official	5:b3b3370574cf	1252	return 0;
mbed_official	5:b3b3370574cf	1253
mbed_official	5:b3b3370574cf	1254	return 1; /* The part of LFN matched */
emilmont	1:46ce1e16c870	1255	}
emilmont	1:46ce1e16c870	1256
emilmont	1:46ce1e16c870	1257
emilmont	1:46ce1e16c870	1258
emilmont	1:46ce1e16c870	1259	static
mbed_official	5:b3b3370574cf	1260	int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
mbed_official	5:b3b3370574cf	1261	WCHAR* lfnbuf, /* Pointer to the Unicode-LFN buffer */
mbed_official	5:b3b3370574cf	1262	BYTE* FATFS_DIR /* Pointer to the directory entry */
emilmont	1:46ce1e16c870	1263	)
emilmont	1:46ce1e16c870	1264	{
mbed_official	5:b3b3370574cf	1265	UINT i, s;
mbed_official	5:b3b3370574cf	1266	WCHAR wc, uc;
mbed_official	5:b3b3370574cf	1267
mbed_official	5:b3b3370574cf	1268
mbed_official	5:b3b3370574cf	1269	i = ((FATFS_DIR[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
mbed_official	5:b3b3370574cf	1270
mbed_official	5:b3b3370574cf	1271	s = 0; wc = 1;
mbed_official	5:b3b3370574cf	1272	do {
mbed_official	5:b3b3370574cf	1273	uc = LD_WORD(FATFS_DIR + LfnOfs[s]); /* Pick an LFN character from the entry */
mbed_official	5:b3b3370574cf	1274	if (wc) { /* Last character has not been processed */
mbed_official	5:b3b3370574cf	1275	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mbed_official	5:b3b3370574cf	1276	lfnbuf[i++] = wc = uc; /* Store it */
mbed_official	5:b3b3370574cf	1277	} else {
mbed_official	5:b3b3370574cf	1278	if (uc != 0xFFFF) return 0; /* Check filler */
mbed_official	5:b3b3370574cf	1279	}
mbed_official	5:b3b3370574cf	1280	} while (++s < 13); /* Read all character in the entry */
mbed_official	5:b3b3370574cf	1281
mbed_official	5:b3b3370574cf	1282	if (FATFS_DIR[LDIR_Ord] & LLEF) { /* Put terminator if it is the last LFN part */
mbed_official	5:b3b3370574cf	1283	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mbed_official	5:b3b3370574cf	1284	lfnbuf[i] = 0;
mbed_official	5:b3b3370574cf	1285	}
mbed_official	5:b3b3370574cf	1286
mbed_official	5:b3b3370574cf	1287	return 1;
emilmont	1:46ce1e16c870	1288	}
emilmont	1:46ce1e16c870	1289
emilmont	1:46ce1e16c870	1290
emilmont	1:46ce1e16c870	1291	#if !_FS_READONLY
emilmont	1:46ce1e16c870	1292	static
emilmont	1:46ce1e16c870	1293	void fit_lfn (
mbed_official	5:b3b3370574cf	1294	const WCHAR* lfnbuf, /* Pointer to the LFN buffer */
mbed_official	5:b3b3370574cf	1295	BYTE* FATFS_DIR, /* Pointer to the directory entry */
mbed_official	5:b3b3370574cf	1296	BYTE ord, /* LFN order (1-20) */
mbed_official	5:b3b3370574cf	1297	BYTE sum /* SFN sum */
emilmont	1:46ce1e16c870	1298	)
emilmont	1:46ce1e16c870	1299	{
mbed_official	5:b3b3370574cf	1300	UINT i, s;
mbed_official	5:b3b3370574cf	1301	WCHAR wc;
mbed_official	5:b3b3370574cf	1302
mbed_official	5:b3b3370574cf	1303
mbed_official	5:b3b3370574cf	1304	FATFS_DIR[LDIR_Chksum] = sum; /* Set check sum */
mbed_official	5:b3b3370574cf	1305	FATFS_DIR[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
mbed_official	5:b3b3370574cf	1306	FATFS_DIR[LDIR_Type] = 0;
mbed_official	5:b3b3370574cf	1307	ST_WORD(FATFS_DIR + LDIR_FstClusLO, 0);
mbed_official	5:b3b3370574cf	1308
mbed_official	5:b3b3370574cf	1309	i = (ord - 1) * 13; /* Get offset in the LFN buffer */
mbed_official	5:b3b3370574cf	1310	s = wc = 0;
mbed_official	5:b3b3370574cf	1311	do {
mbed_official	5:b3b3370574cf	1312	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective character */
mbed_official	5:b3b3370574cf	1313	ST_WORD(FATFS_DIR+LfnOfs[s], wc); /* Put it */
mbed_official	5:b3b3370574cf	1314	if (!wc) wc = 0xFFFF; /* Padding characters following last character */
mbed_official	5:b3b3370574cf	1315	} while (++s < 13);
mbed_official	5:b3b3370574cf	1316	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLEF; /* Bottom LFN part is the start of LFN sequence */
mbed_official	5:b3b3370574cf	1317	FATFS_DIR[LDIR_Ord] = ord; /* Set the LFN order */
emilmont	1:46ce1e16c870	1318	}
emilmont	1:46ce1e16c870	1319
emilmont	1:46ce1e16c870	1320	#endif
emilmont	1:46ce1e16c870	1321	#endif
emilmont	1:46ce1e16c870	1322
emilmont	1:46ce1e16c870	1323
emilmont	1:46ce1e16c870	1324
mbed_official	5:b3b3370574cf	1325
emilmont	1:46ce1e16c870	1326	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1327	/* Create numbered name */
emilmont	1:46ce1e16c870	1328	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1329	#if _USE_LFN
mbed_official	5:b3b3370574cf	1330	static
emilmont	1:46ce1e16c870	1331	void gen_numname (
mbed_official	5:b3b3370574cf	1332	BYTE* dst, /* Pointer to the buffer to store numbered SFN */
mbed_official	5:b3b3370574cf	1333	const BYTE* src, /* Pointer to SFN */
mbed_official	5:b3b3370574cf	1334	const WCHAR* lfn, /* Pointer to LFN */
mbed_official	5:b3b3370574cf	1335	UINT seq /* Sequence number */
emilmont	1:46ce1e16c870	1336	)
emilmont	1:46ce1e16c870	1337	{
mbed_official	5:b3b3370574cf	1338	BYTE ns[8], c;
mbed_official	5:b3b3370574cf	1339	UINT i, j;
mbed_official	5:b3b3370574cf	1340	WCHAR wc;
mbed_official	5:b3b3370574cf	1341	DWORD sr;
mbed_official	5:b3b3370574cf	1342
mbed_official	5:b3b3370574cf	1343
mbed_official	5:b3b3370574cf	1344	mem_cpy(dst, src, 11);
mbed_official	5:b3b3370574cf	1345
mbed_official	5:b3b3370574cf	1346	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
mbed_official	5:b3b3370574cf	1347	sr = seq;
mbed_official	5:b3b3370574cf	1348	while (lfn) { / Create a CRC */
mbed_official	5:b3b3370574cf	1349	wc = *lfn++;
mbed_official	5:b3b3370574cf	1350	for (i = 0; i < 16; i++) {
mbed_official	5:b3b3370574cf	1351	sr = (sr << 1) + (wc & 1);
mbed_official	5:b3b3370574cf	1352	wc >>= 1;
mbed_official	5:b3b3370574cf	1353	if (sr & 0x10000) sr ^= 0x11021;
mbed_official	5:b3b3370574cf	1354	}
mbed_official	5:b3b3370574cf	1355	}
mbed_official	5:b3b3370574cf	1356	seq = (UINT)sr;
mbed_official	5:b3b3370574cf	1357	}
mbed_official	5:b3b3370574cf	1358
mbed_official	5:b3b3370574cf	1359	/* itoa (hexdecimal) */
mbed_official	5:b3b3370574cf	1360	i = 7;
mbed_official	5:b3b3370574cf	1361	do {
mbed_official	5:b3b3370574cf	1362	c = (seq % 16) + '0';
mbed_official	5:b3b3370574cf	1363	if (c > '9') c += 7;
mbed_official	5:b3b3370574cf	1364	ns[i--] = c;
mbed_official	5:b3b3370574cf	1365	seq /= 16;
mbed_official	5:b3b3370574cf	1366	} while (seq);
mbed_official	5:b3b3370574cf	1367	ns[i] = '~';
mbed_official	5:b3b3370574cf	1368
mbed_official	5:b3b3370574cf	1369	/* Append the number */
mbed_official	5:b3b3370574cf	1370	for (j = 0; j < i && dst[j] != ' '; j++) {
mbed_official	5:b3b3370574cf	1371	if (IsDBCS1(dst[j])) {
mbed_official	5:b3b3370574cf	1372	if (j == i - 1) break;
mbed_official	5:b3b3370574cf	1373	j++;
mbed_official	5:b3b3370574cf	1374	}
mbed_official	5:b3b3370574cf	1375	}
mbed_official	5:b3b3370574cf	1376	do {
mbed_official	5:b3b3370574cf	1377	dst[j++] = (i < 8) ? ns[i++] : ' ';
mbed_official	5:b3b3370574cf	1378	} while (j < 8);
emilmont	1:46ce1e16c870	1379	}
emilmont	1:46ce1e16c870	1380	#endif
emilmont	1:46ce1e16c870	1381
emilmont	1:46ce1e16c870	1382
emilmont	1:46ce1e16c870	1383
emilmont	1:46ce1e16c870	1384
emilmont	1:46ce1e16c870	1385	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1386	/* Calculate sum of an SFN */
emilmont	1:46ce1e16c870	1387	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1388	#if _USE_LFN
emilmont	1:46ce1e16c870	1389	static
emilmont	1:46ce1e16c870	1390	BYTE sum_sfn (
mbed_official	5:b3b3370574cf	1391	const BYTE* FATFS_DIR /* Pointer to the SFN entry */
emilmont	1:46ce1e16c870	1392	)
emilmont	1:46ce1e16c870	1393	{
mbed_official	5:b3b3370574cf	1394	BYTE sum = 0;
mbed_official	5:b3b3370574cf	1395	UINT n = 11;
mbed_official	5:b3b3370574cf	1396
mbed_official	5:b3b3370574cf	1397	do sum = (sum >> 1) + (sum << 7) + *FATFS_DIR++; while (--n);
mbed_official	5:b3b3370574cf	1398	return sum;
emilmont	1:46ce1e16c870	1399	}
emilmont	1:46ce1e16c870	1400	#endif
emilmont	1:46ce1e16c870	1401
emilmont	1:46ce1e16c870	1402
emilmont	1:46ce1e16c870	1403
emilmont	1:46ce1e16c870	1404
emilmont	1:46ce1e16c870	1405	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1406	/* Directory handling - Find an object in the directory */
emilmont	1:46ce1e16c870	1407	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1408
emilmont	1:46ce1e16c870	1409	static
emilmont	1:46ce1e16c870	1410	FRESULT dir_find (
mbed_official	5:b3b3370574cf	1411	FATFS_DIR* dp /* Pointer to the directory object linked to the file name */
emilmont	1:46ce1e16c870	1412	)
emilmont	1:46ce1e16c870	1413	{
mbed_official	5:b3b3370574cf	1414	FRESULT res;
mbed_official	5:b3b3370574cf	1415	BYTE c, *FATFS_DIR;
emilmont	1:46ce1e16c870	1416	#if _USE_LFN
mbed_official	5:b3b3370574cf	1417	BYTE a, ord, sum;
emilmont	1:46ce1e16c870	1418	#endif
emilmont	1:46ce1e16c870	1419
mbed_official	5:b3b3370574cf	1420	res = dir_sdi(dp, 0); /* Rewind directory object */
mbed_official	5:b3b3370574cf	1421	if (res != FR_OK) return res;
emilmont	1:46ce1e16c870	1422
emilmont	1:46ce1e16c870	1423	#if _USE_LFN
mbed_official	5:b3b3370574cf	1424	ord = sum = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
emilmont	1:46ce1e16c870	1425	#endif
mbed_official	5:b3b3370574cf	1426	do {
mbed_official	5:b3b3370574cf	1427	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1428	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	1429	FATFS_DIR = dp->FATFS_DIR; /* Ptr to the directory entry of current index */
mbed_official	5:b3b3370574cf	1430	c = FATFS_DIR[DIR_Name];
mbed_official	5:b3b3370574cf	1431	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mbed_official	5:b3b3370574cf	1432	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1433	a = FATFS_DIR[DIR_Attr] & AM_MASK;
mbed_official	5:b3b3370574cf	1434	if (c == DDEM \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
mbed_official	5:b3b3370574cf	1435	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
mbed_official	5:b3b3370574cf	1436	} else {
mbed_official	5:b3b3370574cf	1437	if (a == AM_LFN) { /* An LFN entry is found */
mbed_official	5:b3b3370574cf	1438	if (dp->lfn) {
mbed_official	5:b3b3370574cf	1439	if (c & LLEF) { /* Is it start of LFN sequence? */
mbed_official	5:b3b3370574cf	1440	sum = FATFS_DIR[LDIR_Chksum];
mbed_official	5:b3b3370574cf	1441	c &= ~LLEF; ord = c; /* LFN start order */
mbed_official	5:b3b3370574cf	1442	dp->lfn_idx = dp->index; /* Start index of LFN */
mbed_official	5:b3b3370574cf	1443	}
mbed_official	5:b3b3370574cf	1444	/* Check validity of the LFN entry and compare it with given name */
mbed_official	5:b3b3370574cf	1445	ord = (c == ord && sum == FATFS_DIR[LDIR_Chksum] && cmp_lfn(dp->lfn, FATFS_DIR)) ? ord - 1 : 0xFF;
mbed_official	5:b3b3370574cf	1446	}
mbed_official	5:b3b3370574cf	1447	} else { /* An SFN entry is found */
mbed_official	5:b3b3370574cf	1448	if (!ord && sum == sum_sfn(FATFS_DIR)) break; /* LFN matched? */
mbed_official	5:b3b3370574cf	1449	if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(FATFS_DIR, dp->fn, 11)) break; /* SFN matched? */
mbed_official	5:b3b3370574cf	1450	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
mbed_official	5:b3b3370574cf	1451	}
mbed_official	5:b3b3370574cf	1452	}
mbed_official	5:b3b3370574cf	1453	#else /* Non LFN configuration */
mbed_official	5:b3b3370574cf	1454	if (!(FATFS_DIR[DIR_Attr] & AM_VOL) && !mem_cmp(FATFS_DIR, dp->fn, 11)) /* Is it a valid entry? */
mbed_official	5:b3b3370574cf	1455	break;
emilmont	1:46ce1e16c870	1456	#endif
mbed_official	5:b3b3370574cf	1457	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1458	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	1459
mbed_official	5:b3b3370574cf	1460	return res;
emilmont	1:46ce1e16c870	1461	}
emilmont	1:46ce1e16c870	1462
emilmont	1:46ce1e16c870	1463
emilmont	1:46ce1e16c870	1464
emilmont	1:46ce1e16c870	1465
emilmont	1:46ce1e16c870	1466	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1467	/* Read an object from the directory */
emilmont	1:46ce1e16c870	1468	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1469	#if _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2
emilmont	1:46ce1e16c870	1470	static
emilmont	1:46ce1e16c870	1471	FRESULT dir_read (
mbed_official	5:b3b3370574cf	1472	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1473	int vol /* Filtered by 0:file/directory or 1:volume label */
emilmont	1:46ce1e16c870	1474	)
emilmont	1:46ce1e16c870	1475	{
mbed_official	5:b3b3370574cf	1476	FRESULT res;
mbed_official	5:b3b3370574cf	1477	BYTE a, c, *FATFS_DIR;
emilmont	1:46ce1e16c870	1478	#if _USE_LFN
mbed_official	5:b3b3370574cf	1479	BYTE ord = 0xFF, sum = 0xFF;
emilmont	1:46ce1e16c870	1480	#endif
emilmont	1:46ce1e16c870	1481
mbed_official	5:b3b3370574cf	1482	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	1483	while (dp->sect) {
mbed_official	5:b3b3370574cf	1484	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1485	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	1486	FATFS_DIR = dp->FATFS_DIR; /* Ptr to the directory entry of current index */
mbed_official	5:b3b3370574cf	1487	c = FATFS_DIR[DIR_Name];
mbed_official	5:b3b3370574cf	1488	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mbed_official	5:b3b3370574cf	1489	a = FATFS_DIR[DIR_Attr] & AM_MASK;
mbed_official	5:b3b3370574cf	1490	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1491	if (c == DDEM \|\| (!_FS_RPATH && c == '.') \|\| (int)((a & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */
mbed_official	5:b3b3370574cf	1492	ord = 0xFF;
mbed_official	5:b3b3370574cf	1493	} else {
mbed_official	5:b3b3370574cf	1494	if (a == AM_LFN) { /* An LFN entry is found */
mbed_official	5:b3b3370574cf	1495	if (c & LLEF) { /* Is it start of LFN sequence? */
mbed_official	5:b3b3370574cf	1496	sum = FATFS_DIR[LDIR_Chksum];
mbed_official	5:b3b3370574cf	1497	c &= ~LLEF; ord = c;
mbed_official	5:b3b3370574cf	1498	dp->lfn_idx = dp->index;
mbed_official	5:b3b3370574cf	1499	}
mbed_official	5:b3b3370574cf	1500	/* Check LFN validity and capture it */
mbed_official	5:b3b3370574cf	1501	ord = (c == ord && sum == FATFS_DIR[LDIR_Chksum] && pick_lfn(dp->lfn, FATFS_DIR)) ? ord - 1 : 0xFF;
mbed_official	5:b3b3370574cf	1502	} else { /* An SFN entry is found */
mbed_official	5:b3b3370574cf	1503	if (ord \|\| sum != sum_sfn(FATFS_DIR)) /* Is there a valid LFN? */
mbed_official	5:b3b3370574cf	1504	dp->lfn_idx = 0xFFFF; /* It has no LFN. */
mbed_official	5:b3b3370574cf	1505	break;
mbed_official	5:b3b3370574cf	1506	}
mbed_official	5:b3b3370574cf	1507	}
mbed_official	5:b3b3370574cf	1508	#else /* Non LFN configuration */
mbed_official	5:b3b3370574cf	1509	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	1510	break;
emilmont	1:46ce1e16c870	1511	#endif
mbed_official	5:b3b3370574cf	1512	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1513	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	1514	}
mbed_official	5:b3b3370574cf	1515
mbed_official	5:b3b3370574cf	1516	if (res != FR_OK) dp->sect = 0;
mbed_official	5:b3b3370574cf	1517
mbed_official	5:b3b3370574cf	1518	return res;
emilmont	1:46ce1e16c870	1519	}
mbed_official	5:b3b3370574cf	1520	#endif /* _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2 */
mbed_official	5:b3b3370574cf	1521
emilmont	1:46ce1e16c870	1522
emilmont	1:46ce1e16c870	1523
emilmont	1:46ce1e16c870	1524
emilmont	1:46ce1e16c870	1525	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1526	/* Register an object to the directory */
emilmont	1:46ce1e16c870	1527	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1528	#if !_FS_READONLY
emilmont	1:46ce1e16c870	1529	static
mbed_official	5:b3b3370574cf	1530	FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
mbed_official	5:b3b3370574cf	1531	FATFS_DIR* dp /* Target directory with object name to be created */
emilmont	1:46ce1e16c870	1532	)
emilmont	1:46ce1e16c870	1533	{
mbed_official	5:b3b3370574cf	1534	FRESULT res;
mbed_official	5:b3b3370574cf	1535	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1536	UINT n, nent;
mbed_official	5:b3b3370574cf	1537	BYTE sn[12], *fn, sum;
mbed_official	5:b3b3370574cf	1538	WCHAR *lfn;
mbed_official	5:b3b3370574cf	1539
mbed_official	5:b3b3370574cf	1540
mbed_official	5:b3b3370574cf	1541	fn = dp->fn; lfn = dp->lfn;
mbed_official	5:b3b3370574cf	1542	mem_cpy(sn, fn, 12);
mbed_official	5:b3b3370574cf	1543
mbed_official	5:b3b3370574cf	1544	if (_FS_RPATH && (sn[NSFLAG] & NS_DOT)) /* Cannot create dot entry */
mbed_official	5:b3b3370574cf	1545	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1546
mbed_official	5:b3b3370574cf	1547	if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
mbed_official	5:b3b3370574cf	1548	fn[NSFLAG] = 0; dp->lfn = 0; /* Find only SFN */
mbed_official	5:b3b3370574cf	1549	for (n = 1; n < 100; n++) {
mbed_official	5:b3b3370574cf	1550	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
mbed_official	5:b3b3370574cf	1551	res = dir_find(dp); /* Check if the name collides with existing SFN */
mbed_official	5:b3b3370574cf	1552	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	1553	}
mbed_official	5:b3b3370574cf	1554	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
mbed_official	5:b3b3370574cf	1555	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
mbed_official	5:b3b3370574cf	1556	fn[NSFLAG] = sn[NSFLAG]; dp->lfn = lfn;
mbed_official	5:b3b3370574cf	1557	}
mbed_official	5:b3b3370574cf	1558
mbed_official	5:b3b3370574cf	1559	if (sn[NSFLAG] & NS_LFN) { /* When LFN is to be created, allocate entries for an SFN + LFNs. */
mbed_official	5:b3b3370574cf	1560	for (n = 0; lfn[n]; n++) ;
mbed_official	5:b3b3370574cf	1561	nent = (n + 25) / 13;
mbed_official	5:b3b3370574cf	1562	} else { /* Otherwise allocate an entry for an SFN */
mbed_official	5:b3b3370574cf	1563	nent = 1;
mbed_official	5:b3b3370574cf	1564	}
mbed_official	5:b3b3370574cf	1565	res = dir_alloc(dp, nent); /* Allocate entries */
mbed_official	5:b3b3370574cf	1566
mbed_official	5:b3b3370574cf	1567	if (res == FR_OK && --nent) { /* Set LFN entry if needed */
mbed_official	5:b3b3370574cf	1568	res = dir_sdi(dp, dp->index - nent);
mbed_official	5:b3b3370574cf	1569	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1570	sum = sum_sfn(dp->fn); /* Sum value of the SFN tied to the LFN */
mbed_official	5:b3b3370574cf	1571	do { /* Store LFN entries in bottom first */
mbed_official	5:b3b3370574cf	1572	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1573	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	1574	fit_lfn(dp->lfn, dp->FATFS_DIR, (BYTE)nent, sum);
mbed_official	5:b3b3370574cf	1575	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1576	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1577	} while (res == FR_OK && --nent);
mbed_official	5:b3b3370574cf	1578	}
mbed_official	5:b3b3370574cf	1579	}
mbed_official	5:b3b3370574cf	1580	#else /* Non LFN configuration */
mbed_official	5:b3b3370574cf	1581	res = dir_alloc(dp, 1); /* Allocate an entry for SFN */
emilmont	1:46ce1e16c870	1582	#endif
emilmont	1:46ce1e16c870	1583
mbed_official	5:b3b3370574cf	1584	if (res == FR_OK) { /* Set SFN entry */
mbed_official	5:b3b3370574cf	1585	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1586	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1587	mem_set(dp->FATFS_DIR, 0, SZ_DIRE); /* Clean the entry */
mbed_official	5:b3b3370574cf	1588	mem_cpy(dp->FATFS_DIR, dp->fn, 11); /* Put SFN */
emilmont	1:46ce1e16c870	1589	#if _USE_LFN
mbed_official	5:b3b3370574cf	1590	dp->FATFS_DIR[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY \| NS_EXT); /* Put NT flag */
emilmont	1:46ce1e16c870	1591	#endif
mbed_official	5:b3b3370574cf	1592	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1593	}
mbed_official	5:b3b3370574cf	1594	}
mbed_official	5:b3b3370574cf	1595
mbed_official	5:b3b3370574cf	1596	return res;
emilmont	1:46ce1e16c870	1597	}
emilmont	1:46ce1e16c870	1598	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	1599
emilmont	1:46ce1e16c870	1600
emilmont	1:46ce1e16c870	1601
emilmont	1:46ce1e16c870	1602
emilmont	1:46ce1e16c870	1603	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1604	/* Remove an object from the directory */
emilmont	1:46ce1e16c870	1605	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1606	#if !_FS_READONLY && !_FS_MINIMIZE
emilmont	1:46ce1e16c870	1607	static
mbed_official	5:b3b3370574cf	1608	FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
mbed_official	5:b3b3370574cf	1609	FATFS_DIR* dp /* Directory object pointing the entry to be removed */
mbed_official	5:b3b3370574cf	1610	)
mbed_official	5:b3b3370574cf	1611	{
mbed_official	5:b3b3370574cf	1612	FRESULT res;
mbed_official	5:b3b3370574cf	1613	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1614	UINT i;
mbed_official	5:b3b3370574cf	1615
mbed_official	5:b3b3370574cf	1616	i = dp->index; /* SFN index */
mbed_official	5:b3b3370574cf	1617	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	1618	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1619	do {
mbed_official	5:b3b3370574cf	1620	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1621	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	1622	mem_set(dp->FATFS_DIR, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
mbed_official	5:b3b3370574cf	1623	*dp->FATFS_DIR = DDEM;
mbed_official	5:b3b3370574cf	1624	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1625	if (dp->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
mbed_official	5:b3b3370574cf	1626	res = dir_next(dp, 0); /* Next entry */
mbed_official	5:b3b3370574cf	1627	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	1628	if (res == FR_NO_FILE) res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	1629	}
mbed_official	5:b3b3370574cf	1630
mbed_official	5:b3b3370574cf	1631	#else /* Non LFN configuration */
mbed_official	5:b3b3370574cf	1632	res = dir_sdi(dp, dp->index);
mbed_official	5:b3b3370574cf	1633	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1634	res = move_window(dp->fs, dp->sect);
mbed_official	5:b3b3370574cf	1635	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	1636	mem_set(dp->FATFS_DIR, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
mbed_official	5:b3b3370574cf	1637	*dp->FATFS_DIR = DDEM;
mbed_official	5:b3b3370574cf	1638	dp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	1639	}
mbed_official	5:b3b3370574cf	1640	}
mbed_official	5:b3b3370574cf	1641	#endif
mbed_official	5:b3b3370574cf	1642
mbed_official	5:b3b3370574cf	1643	return res;
mbed_official	5:b3b3370574cf	1644	}
mbed_official	5:b3b3370574cf	1645	#endif /* !_FS_READONLY */
mbed_official	5:b3b3370574cf	1646
mbed_official	5:b3b3370574cf	1647
mbed_official	5:b3b3370574cf	1648
mbed_official	5:b3b3370574cf	1649
mbed_official	5:b3b3370574cf	1650	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1651	/* Get file information from directory entry */
mbed_official	5:b3b3370574cf	1652	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1653	#if _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2
mbed_official	5:b3b3370574cf	1654	static
mbed_official	5:b3b3370574cf	1655	void get_fileinfo ( /* No return code */
mbed_official	5:b3b3370574cf	1656	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1657	FILINFO* fno /* Pointer to the file information to be filled */
emilmont	1:46ce1e16c870	1658	)
emilmont	1:46ce1e16c870	1659	{
mbed_official	5:b3b3370574cf	1660	UINT i;
mbed_official	5:b3b3370574cf	1661	TCHAR *p, c;
mbed_official	5:b3b3370574cf	1662	BYTE *FATFS_DIR;
mbed_official	5:b3b3370574cf	1663	#if _USE_LFN
mbed_official	5:b3b3370574cf	1664	WCHAR w, *lfn;
mbed_official	5:b3b3370574cf	1665	#endif
mbed_official	5:b3b3370574cf	1666
mbed_official	5:b3b3370574cf	1667	p = fno->fname;
mbed_official	5:b3b3370574cf	1668	if (dp->sect) { /* Get SFN */
mbed_official	5:b3b3370574cf	1669	FATFS_DIR = dp->FATFS_DIR;
mbed_official	5:b3b3370574cf	1670	i = 0;
mbed_official	5:b3b3370574cf	1671	while (i < 11) { /* Copy name body and extension */
mbed_official	5:b3b3370574cf	1672	c = (TCHAR)FATFS_DIR[i++];
mbed_official	5:b3b3370574cf	1673	if (c == ' ') continue; /* Skip padding spaces */
mbed_official	5:b3b3370574cf	1674	if (c == RDDEM) c = (TCHAR)DDEM; /* Restore replaced DDEM character */
mbed_official	5:b3b3370574cf	1675	if (i == 9) p++ = '.'; / Insert a . if extension is exist */
mbed_official	5:b3b3370574cf	1676	#if _USE_LFN
mbed_official	5:b3b3370574cf	1677	if (IsUpper(c) && (FATFS_DIR[DIR_NTres] & (i >= 9 ? NS_EXT : NS_BODY)))
mbed_official	5:b3b3370574cf	1678	c += 0x20; /* To lower */
mbed_official	5:b3b3370574cf	1679	#if _LFN_UNICODE
mbed_official	5:b3b3370574cf	1680	if (IsDBCS1(c) && i != 8 && i != 11 && IsDBCS2(FATFS_DIR[i]))
mbed_official	5:b3b3370574cf	1681	c = c << 8 \| FATFS_DIR[i++];
mbed_official	5:b3b3370574cf	1682	c = ff_convert(c, 1); /* OEM -> Unicode */
mbed_official	5:b3b3370574cf	1683	if (!c) c = '?';
mbed_official	5:b3b3370574cf	1684	#endif
mbed_official	5:b3b3370574cf	1685	#endif
mbed_official	5:b3b3370574cf	1686	*p++ = c;
mbed_official	5:b3b3370574cf	1687	}
mbed_official	5:b3b3370574cf	1688	fno->fattrib = FATFS_DIR[DIR_Attr]; /* Attribute */
mbed_official	5:b3b3370574cf	1689	fno->fsize = LD_DWORD(FATFS_DIR + DIR_FileSize); /* Size */
mbed_official	5:b3b3370574cf	1690	fno->fdate = LD_WORD(FATFS_DIR + DIR_WrtDate); /* Date */
mbed_official	5:b3b3370574cf	1691	fno->ftime = LD_WORD(FATFS_DIR + DIR_WrtTime); /* Time */
mbed_official	5:b3b3370574cf	1692	}
mbed_official	5:b3b3370574cf	1693	p = 0; / Terminate SFN string by a \0 */
mbed_official	5:b3b3370574cf	1694
mbed_official	5:b3b3370574cf	1695	#if _USE_LFN
mbed_official	5:b3b3370574cf	1696	if (fno->lfname) {
mbed_official	5:b3b3370574cf	1697	i = 0; p = fno->lfname;
mbed_official	5:b3b3370574cf	1698	if (dp->sect && fno->lfsize && dp->lfn_idx != 0xFFFF) { /* Get LFN if available */
mbed_official	5:b3b3370574cf	1699	lfn = dp->lfn;
mbed_official	5:b3b3370574cf	1700	while ((w = lfn++) != 0) { / Get an LFN character */
mbed_official	5:b3b3370574cf	1701	#if !_LFN_UNICODE
mbed_official	5:b3b3370574cf	1702	w = ff_convert(w, 0); /* Unicode -> OEM */
mbed_official	5:b3b3370574cf	1703	if (!w) { i = 0; break; } /* No LFN if it could not be converted */
mbed_official	5:b3b3370574cf	1704	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
mbed_official	5:b3b3370574cf	1705	p[i++] = (TCHAR)(w >> 8);
mbed_official	5:b3b3370574cf	1706	#endif
mbed_official	5:b3b3370574cf	1707	if (i >= fno->lfsize - 1) { i = 0; break; } /* No LFN if buffer overflow */
mbed_official	5:b3b3370574cf	1708	p[i++] = (TCHAR)w;
mbed_official	5:b3b3370574cf	1709	}
mbed_official	5:b3b3370574cf	1710	}
mbed_official	5:b3b3370574cf	1711	p[i] = 0; /* Terminate LFN string by a \0 */
mbed_official	5:b3b3370574cf	1712	}
emilmont	1:46ce1e16c870	1713	#endif
mbed_official	5:b3b3370574cf	1714	}
mbed_official	5:b3b3370574cf	1715	#endif /* _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2 */
mbed_official	5:b3b3370574cf	1716
mbed_official	5:b3b3370574cf	1717
mbed_official	5:b3b3370574cf	1718
mbed_official	5:b3b3370574cf	1719
mbed_official	5:b3b3370574cf	1720	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1721	/* Pattern matching */
mbed_official	5:b3b3370574cf	1722	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	1723	#if _USE_FIND && _FS_MINIMIZE <= 1
mbed_official	5:b3b3370574cf	1724	static
mbed_official	5:b3b3370574cf	1725	WCHAR get_achar ( /* Get a character and advances ptr 1 or 2 */
mbed_official	5:b3b3370574cf	1726	const TCHAR** ptr /* Pointer to pointer to the SBCS/DBCS/Unicode string */
mbed_official	5:b3b3370574cf	1727	)
mbed_official	5:b3b3370574cf	1728	{
mbed_official	5:b3b3370574cf	1729	WCHAR chr;
mbed_official	5:b3b3370574cf	1730
mbed_official	5:b3b3370574cf	1731	#if !_LFN_UNICODE
mbed_official	5:b3b3370574cf	1732	chr = (BYTE)(ptr)++; /* Get a byte */
mbed_official	5:b3b3370574cf	1733	if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */
mbed_official	5:b3b3370574cf	1734	if (IsDBCS1(chr) && IsDBCS2(*ptr)) / Get DBC 2nd byte if needed */
mbed_official	5:b3b3370574cf	1735	chr = chr << 8 \| (BYTE)(ptr)++;
mbed_official	5:b3b3370574cf	1736	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	1737	if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */
mbed_official	5:b3b3370574cf	1738	#endif
mbed_official	5:b3b3370574cf	1739	#else
mbed_official	5:b3b3370574cf	1740	chr = ff_wtoupper((ptr)++); /* Get a word and to upper */
mbed_official	5:b3b3370574cf	1741	#endif
mbed_official	5:b3b3370574cf	1742	return chr;
emilmont	1:46ce1e16c870	1743	}
mbed_official	5:b3b3370574cf	1744
mbed_official	5:b3b3370574cf	1745
mbed_official	5:b3b3370574cf	1746	static
mbed_official	5:b3b3370574cf	1747	int pattern_matching ( /* Return value: 0:mismatched, 1:matched */
mbed_official	5:b3b3370574cf	1748	const TCHAR* pat, /* Matching pattern */
mbed_official	5:b3b3370574cf	1749	const TCHAR* nam, /* String to be tested */
mbed_official	5:b3b3370574cf	1750	int skip, /* Number of pre-skip chars (number of ?s) */
mbed_official	5:b3b3370574cf	1751	int inf /* Infinite search (* specified) */
mbed_official	5:b3b3370574cf	1752	)
mbed_official	5:b3b3370574cf	1753	{
mbed_official	5:b3b3370574cf	1754	const TCHAR pp, np;
mbed_official	5:b3b3370574cf	1755	WCHAR pc, nc;
mbed_official	5:b3b3370574cf	1756	int nm, nx;
mbed_official	5:b3b3370574cf	1757
mbed_official	5:b3b3370574cf	1758
mbed_official	5:b3b3370574cf	1759	while (skip--) { /* Pre-skip name chars */
mbed_official	5:b3b3370574cf	1760	if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */
mbed_official	5:b3b3370574cf	1761	}
mbed_official	5:b3b3370574cf	1762	if (!pat && inf) return 1; / (short circuit) */
mbed_official	5:b3b3370574cf	1763
mbed_official	5:b3b3370574cf	1764	do {
mbed_official	5:b3b3370574cf	1765	pp = pat; np = nam; /* Top of pattern and name to match */
mbed_official	5:b3b3370574cf	1766	for (;;) {
mbed_official	5:b3b3370574cf	1767	if (pp == '?' \|\| pp == '') { / Wildcard? */
mbed_official	5:b3b3370574cf	1768	nm = nx = 0;
mbed_official	5:b3b3370574cf	1769	do { /* Analyze the wildcard chars */
mbed_official	5:b3b3370574cf	1770	if (*pp++ == '?') nm++; else nx = 1;
mbed_official	5:b3b3370574cf	1771	} while (pp == '?' \|\| pp == '*');
mbed_official	5:b3b3370574cf	1772	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	1773	nc = np; break; / Branch mismatched */
mbed_official	5:b3b3370574cf	1774	}
mbed_official	5:b3b3370574cf	1775	pc = get_achar(&pp); /* Get a pattern char */
mbed_official	5:b3b3370574cf	1776	nc = get_achar(&np); /* Get a name char */
mbed_official	5:b3b3370574cf	1777	if (pc != nc) break; /* Branch mismatched? */
mbed_official	5:b3b3370574cf	1778	if (!pc) return 1; /* Branch matched? (matched at end of both strings) */
mbed_official	5:b3b3370574cf	1779	}
mbed_official	5:b3b3370574cf	1780	get_achar(&nam); /* nam++ */
mbed_official	5:b3b3370574cf	1781	} while (inf && nc); /* Retry until end of name if infinite search is specified */
mbed_official	5:b3b3370574cf	1782
mbed_official	5:b3b3370574cf	1783	return 0;
mbed_official	5:b3b3370574cf	1784	}
mbed_official	5:b3b3370574cf	1785	#endif /* _USE_FIND && _FS_MINIMIZE <= 1 */
emilmont	1:46ce1e16c870	1786
emilmont	1:46ce1e16c870	1787
emilmont	1:46ce1e16c870	1788
emilmont	1:46ce1e16c870	1789
emilmont	1:46ce1e16c870	1790	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1791	/* Pick a segment and create the object name in directory form */
emilmont	1:46ce1e16c870	1792	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	1793
emilmont	1:46ce1e16c870	1794	static
emilmont	1:46ce1e16c870	1795	FRESULT create_name (
mbed_official	5:b3b3370574cf	1796	FATFS_DIR* dp, /* Pointer to the directory object */
mbed_official	5:b3b3370574cf	1797	const TCHAR** path /* Pointer to pointer to the segment in the path string */
emilmont	1:46ce1e16c870	1798	)
emilmont	1:46ce1e16c870	1799	{
mbed_official	5:b3b3370574cf	1800	#if _USE_LFN /* LFN configuration */
mbed_official	5:b3b3370574cf	1801	BYTE b, cf;
mbed_official	5:b3b3370574cf	1802	WCHAR w, *lfn;
mbed_official	5:b3b3370574cf	1803	UINT i, ni, si, di;
mbed_official	5:b3b3370574cf	1804	const TCHAR *p;
mbed_official	5:b3b3370574cf	1805
mbed_official	5:b3b3370574cf	1806	/* Create LFN in Unicode */
mbed_official	5:b3b3370574cf	1807	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
mbed_official	5:b3b3370574cf	1808	lfn = dp->lfn;
mbed_official	5:b3b3370574cf	1809	si = di = 0;
mbed_official	5:b3b3370574cf	1810	for (;;) {
mbed_official	5:b3b3370574cf	1811	w = p[si++]; /* Get a character */
mbed_official	5:b3b3370574cf	1812	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
mbed_official	5:b3b3370574cf	1813	if (di >= _MAX_LFN) /* Reject too long name */
mbed_official	5:b3b3370574cf	1814	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1815	#if !_LFN_UNICODE
mbed_official	5:b3b3370574cf	1816	w &= 0xFF;
mbed_official	5:b3b3370574cf	1817	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
mbed_official	5:b3b3370574cf	1818	b = (BYTE)p[si++]; /* Get 2nd byte */
mbed_official	5:b3b3370574cf	1819	w = (w << 8) + b; /* Create a DBC */
mbed_official	5:b3b3370574cf	1820	if (!IsDBCS2(b))
mbed_official	5:b3b3370574cf	1821	return FR_INVALID_NAME; /* Reject invalid sequence */
mbed_official	5:b3b3370574cf	1822	}
mbed_official	5:b3b3370574cf	1823	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
mbed_official	5:b3b3370574cf	1824	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
emilmont	1:46ce1e16c870	1825	#endif
mbed_official	5:b3b3370574cf	1826	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal characters for LFN */
mbed_official	5:b3b3370574cf	1827	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1828	lfn[di++] = w; /* Store the Unicode character */
mbed_official	5:b3b3370574cf	1829	}
mbed_official	5:b3b3370574cf	1830	path = &p[si]; / Return pointer to the next segment */
mbed_official	5:b3b3370574cf	1831	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
emilmont	1:46ce1e16c870	1832	#if _FS_RPATH
mbed_official	5:b3b3370574cf	1833	if ((di == 1 && lfn[di - 1] == '.') \|\| /* Is this a dot entry? */
mbed_official	5:b3b3370574cf	1834	(di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) {
mbed_official	5:b3b3370574cf	1835	lfn[di] = 0;
mbed_official	5:b3b3370574cf	1836	for (i = 0; i < 11; i++)
mbed_official	5:b3b3370574cf	1837	dp->fn[i] = (i < di) ? '.' : ' ';
mbed_official	5:b3b3370574cf	1838	dp->fn[i] = cf \| NS_DOT; /* This is a dot entry */
mbed_official	5:b3b3370574cf	1839	return FR_OK;
mbed_official	5:b3b3370574cf	1840	}
emilmont	1:46ce1e16c870	1841	#endif
mbed_official	5:b3b3370574cf	1842	while (di) { /* Strip trailing spaces and dots */
mbed_official	5:b3b3370574cf	1843	w = lfn[di - 1];
mbed_official	5:b3b3370574cf	1844	if (w != ' ' && w != '.') break;
mbed_official	5:b3b3370574cf	1845	di--;
mbed_official	5:b3b3370574cf	1846	}
mbed_official	5:b3b3370574cf	1847	if (!di) return FR_INVALID_NAME; /* Reject nul string */
mbed_official	5:b3b3370574cf	1848
mbed_official	5:b3b3370574cf	1849	lfn[di] = 0; /* LFN is created */
mbed_official	5:b3b3370574cf	1850
mbed_official	5:b3b3370574cf	1851	/* Create SFN in directory form */
mbed_official	5:b3b3370574cf	1852	mem_set(dp->fn, ' ', 11);
mbed_official	5:b3b3370574cf	1853	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
mbed_official	5:b3b3370574cf	1854	if (si) cf \|= NS_LOSS \| NS_LFN;
mbed_official	5:b3b3370574cf	1855	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
mbed_official	5:b3b3370574cf	1856
mbed_official	5:b3b3370574cf	1857	b = i = 0; ni = 8;
mbed_official	5:b3b3370574cf	1858	for (;;) {
mbed_official	5:b3b3370574cf	1859	w = lfn[si++]; /* Get an LFN character */
mbed_official	5:b3b3370574cf	1860	if (!w) break; /* Break on end of the LFN */
mbed_official	5:b3b3370574cf	1861	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
mbed_official	5:b3b3370574cf	1862	cf \|= NS_LOSS \| NS_LFN; continue;
mbed_official	5:b3b3370574cf	1863	}
mbed_official	5:b3b3370574cf	1864
mbed_official	5:b3b3370574cf	1865	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
mbed_official	5:b3b3370574cf	1866	if (ni == 11) { /* Long extension */
mbed_official	5:b3b3370574cf	1867	cf \|= NS_LOSS \| NS_LFN; break;
mbed_official	5:b3b3370574cf	1868	}
mbed_official	5:b3b3370574cf	1869	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
mbed_official	5:b3b3370574cf	1870	if (si > di) break; /* No extension */
mbed_official	5:b3b3370574cf	1871	si = di; i = 8; ni = 11; /* Enter extension section */
mbed_official	5:b3b3370574cf	1872	b <<= 2; continue;
mbed_official	5:b3b3370574cf	1873	}
mbed_official	5:b3b3370574cf	1874
mbed_official	5:b3b3370574cf	1875	if (w >= 0x80) { /* Non ASCII character */
emilmont	1:46ce1e16c870	1876	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	1877	w = ff_convert(w, 0); /* Unicode -> OEM code */
mbed_official	5:b3b3370574cf	1878	if (w) w = ExCvt[w - 0x80]; /* Convert extended character to upper (SBCS) */
emilmont	1:46ce1e16c870	1879	#else
mbed_official	5:b3b3370574cf	1880	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
emilmont	1:46ce1e16c870	1881	#endif
mbed_official	5:b3b3370574cf	1882	cf \|= NS_LFN; /* Force create LFN entry */
mbed_official	5:b3b3370574cf	1883	}
mbed_official	5:b3b3370574cf	1884
mbed_official	5:b3b3370574cf	1885	if (_DF1S && w >= 0x100) { /* DBC (always false at SBCS cfg) */
mbed_official	5:b3b3370574cf	1886	if (i >= ni - 1) {
mbed_official	5:b3b3370574cf	1887	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
mbed_official	5:b3b3370574cf	1888	}
mbed_official	5:b3b3370574cf	1889	dp->fn[i++] = (BYTE)(w >> 8);
mbed_official	5:b3b3370574cf	1890	} else { /* SBC */
mbed_official	5:b3b3370574cf	1891	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal characters for SFN */
mbed_official	5:b3b3370574cf	1892	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
mbed_official	5:b3b3370574cf	1893	} else {
mbed_official	5:b3b3370574cf	1894	if (IsUpper(w)) { /* ASCII large capital */
mbed_official	5:b3b3370574cf	1895	b \|= 2;
mbed_official	5:b3b3370574cf	1896	} else {
mbed_official	5:b3b3370574cf	1897	if (IsLower(w)) { /* ASCII small capital */
mbed_official	5:b3b3370574cf	1898	b \|= 1; w -= 0x20;
mbed_official	5:b3b3370574cf	1899	}
mbed_official	5:b3b3370574cf	1900	}
mbed_official	5:b3b3370574cf	1901	}
mbed_official	5:b3b3370574cf	1902	}
mbed_official	5:b3b3370574cf	1903	dp->fn[i++] = (BYTE)w;
mbed_official	5:b3b3370574cf	1904	}
mbed_official	5:b3b3370574cf	1905
mbed_official	5:b3b3370574cf	1906	if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with deleted mark, replace it with RDDEM */
mbed_official	5:b3b3370574cf	1907
mbed_official	5:b3b3370574cf	1908	if (ni == 8) b <<= 2;
mbed_official	5:b3b3370574cf	1909	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
mbed_official	5:b3b3370574cf	1910	cf \|= NS_LFN;
mbed_official	5:b3b3370574cf	1911	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */
mbed_official	5:b3b3370574cf	1912	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
mbed_official	5:b3b3370574cf	1913	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
mbed_official	5:b3b3370574cf	1914	}
mbed_official	5:b3b3370574cf	1915
mbed_official	5:b3b3370574cf	1916	dp->fn[NSFLAG] = cf; /* SFN is created */
mbed_official	5:b3b3370574cf	1917
mbed_official	5:b3b3370574cf	1918	return FR_OK;
mbed_official	5:b3b3370574cf	1919
mbed_official	5:b3b3370574cf	1920
mbed_official	5:b3b3370574cf	1921	#else /* Non-LFN configuration */
mbed_official	5:b3b3370574cf	1922	BYTE b, c, d, *sfn;
mbed_official	5:b3b3370574cf	1923	UINT ni, si, i;
mbed_official	5:b3b3370574cf	1924	const char *p;
mbed_official	5:b3b3370574cf	1925
mbed_official	5:b3b3370574cf	1926	/* Create file name in directory form */
mbed_official	5:b3b3370574cf	1927	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
mbed_official	5:b3b3370574cf	1928	sfn = dp->fn;
mbed_official	5:b3b3370574cf	1929	mem_set(sfn, ' ', 11);
mbed_official	5:b3b3370574cf	1930	si = i = b = 0; ni = 8;
emilmont	1:46ce1e16c870	1931	#if _FS_RPATH
mbed_official	5:b3b3370574cf	1932	if (p[si] == '.') { /* Is this a dot entry? */
mbed_official	5:b3b3370574cf	1933	for (;;) {
mbed_official	5:b3b3370574cf	1934	c = (BYTE)p[si++];
mbed_official	5:b3b3370574cf	1935	if (c != '.' \|\| si >= 3) break;
mbed_official	5:b3b3370574cf	1936	sfn[i++] = c;
mbed_official	5:b3b3370574cf	1937	}
mbed_official	5:b3b3370574cf	1938	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1939	path = &p[si]; / Return pointer to the next segment */
mbed_official	5:b3b3370574cf	1940	sfn[NSFLAG] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
mbed_official	5:b3b3370574cf	1941	return FR_OK;
mbed_official	5:b3b3370574cf	1942	}
emilmont	1:46ce1e16c870	1943	#endif
mbed_official	5:b3b3370574cf	1944	for (;;) {
mbed_official	5:b3b3370574cf	1945	c = (BYTE)p[si++];
mbed_official	5:b3b3370574cf	1946	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
mbed_official	5:b3b3370574cf	1947	if (c == '.' \|\| i >= ni) {
mbed_official	5:b3b3370574cf	1948	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1949	i = 8; ni = 11;
mbed_official	5:b3b3370574cf	1950	b <<= 2; continue;
mbed_official	5:b3b3370574cf	1951	}
mbed_official	5:b3b3370574cf	1952	if (c >= 0x80) { /* Extended character? */
mbed_official	5:b3b3370574cf	1953	b \|= 3; /* Eliminate NT flag */
emilmont	1:46ce1e16c870	1954	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	1955	c = ExCvt[c - 0x80]; /* To upper extended characters (SBCS cfg) */
emilmont	1:46ce1e16c870	1956	#else
mbed_official	5:b3b3370574cf	1957	#if !_DF1S
mbed_official	5:b3b3370574cf	1958	return FR_INVALID_NAME; /* Reject extended characters (ASCII cfg) */
emilmont	1:46ce1e16c870	1959	#endif
emilmont	1:46ce1e16c870	1960	#endif
mbed_official	5:b3b3370574cf	1961	}
mbed_official	5:b3b3370574cf	1962	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
mbed_official	5:b3b3370574cf	1963	d = (BYTE)p[si++]; /* Get 2nd byte */
mbed_official	5:b3b3370574cf	1964	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
mbed_official	5:b3b3370574cf	1965	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1966	sfn[i++] = c;
mbed_official	5:b3b3370574cf	1967	sfn[i++] = d;
mbed_official	5:b3b3370574cf	1968	} else { /* SBC */
mbed_official	5:b3b3370574cf	1969	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
mbed_official	5:b3b3370574cf	1970	return FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	1971	if (IsUpper(c)) { /* ASCII large capital? */
mbed_official	5:b3b3370574cf	1972	b \|= 2;
mbed_official	5:b3b3370574cf	1973	} else {
mbed_official	5:b3b3370574cf	1974	if (IsLower(c)) { /* ASCII small capital? */
mbed_official	5:b3b3370574cf	1975	b \|= 1; c -= 0x20;
mbed_official	5:b3b3370574cf	1976	}
mbed_official	5:b3b3370574cf	1977	}
mbed_official	5:b3b3370574cf	1978	sfn[i++] = c;
mbed_official	5:b3b3370574cf	1979	}
mbed_official	5:b3b3370574cf	1980	}
mbed_official	5:b3b3370574cf	1981	path = &p[si]; / Return pointer to the next segment */
mbed_official	5:b3b3370574cf	1982	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
mbed_official	5:b3b3370574cf	1983
mbed_official	5:b3b3370574cf	1984	if (!i) return FR_INVALID_NAME; /* Reject nul string */
mbed_official	5:b3b3370574cf	1985	if (sfn[0] == DDEM) sfn[0] = RDDEM; /* When first character collides with DDEM, replace it with RDDEM */
mbed_official	5:b3b3370574cf	1986
mbed_official	5:b3b3370574cf	1987	if (ni == 8) b <<= 2;
mbed_official	5:b3b3370574cf	1988	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
mbed_official	5:b3b3370574cf	1989	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
mbed_official	5:b3b3370574cf	1990
mbed_official	5:b3b3370574cf	1991	sfn[NSFLAG] = c; /* Store NT flag, File name is created */
mbed_official	5:b3b3370574cf	1992
mbed_official	5:b3b3370574cf	1993	return FR_OK;
emilmont	1:46ce1e16c870	1994	#endif
emilmont	1:46ce1e16c870	1995	}
emilmont	1:46ce1e16c870	1996
emilmont	1:46ce1e16c870	1997
emilmont	1:46ce1e16c870	1998
emilmont	1:46ce1e16c870	1999
emilmont	1:46ce1e16c870	2000	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2001	/* Follow a file path */
emilmont	1:46ce1e16c870	2002	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2003
emilmont	1:46ce1e16c870	2004	static
mbed_official	5:b3b3370574cf	2005	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
mbed_official	5:b3b3370574cf	2006	FATFS_DIR* dp, /* Directory object to return last directory and found object */
mbed_official	5:b3b3370574cf	2007	const TCHAR* path /* Full-path string to find a file or directory */
emilmont	1:46ce1e16c870	2008	)
emilmont	1:46ce1e16c870	2009	{
mbed_official	5:b3b3370574cf	2010	FRESULT res;
mbed_official	5:b3b3370574cf	2011	BYTE *FATFS_DIR, ns;
emilmont	1:46ce1e16c870	2012
emilmont	1:46ce1e16c870	2013
emilmont	1:46ce1e16c870	2014	#if _FS_RPATH
mbed_official	5:b3b3370574cf	2015	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
mbed_official	5:b3b3370574cf	2016	path++; dp->sclust = 0; /* Strip it and start from the root directory */
mbed_official	5:b3b3370574cf	2017	} else { /* No heading separator */
mbed_official	5:b3b3370574cf	2018	dp->sclust = dp->fs->cdir; /* Start from the current directory */
mbed_official	5:b3b3370574cf	2019	}
emilmont	1:46ce1e16c870	2020	#else
mbed_official	5:b3b3370574cf	2021	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
mbed_official	5:b3b3370574cf	2022	path++;
mbed_official	5:b3b3370574cf	2023	dp->sclust = 0; /* Always start from the root directory */
emilmont	1:46ce1e16c870	2024	#endif
emilmont	1:46ce1e16c870	2025
mbed_official	5:b3b3370574cf	2026	if ((UINT)path < ' ') { / Null path name is the origin directory itself */
mbed_official	5:b3b3370574cf	2027	res = dir_sdi(dp, 0);
mbed_official	5:b3b3370574cf	2028	dp->FATFS_DIR = 0;
mbed_official	5:b3b3370574cf	2029	} else { /* Follow path */
mbed_official	5:b3b3370574cf	2030	for (;;) {
mbed_official	5:b3b3370574cf	2031	res = create_name(dp, &path); /* Get a segment name of the path */
mbed_official	5:b3b3370574cf	2032	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	2033	res = dir_find(dp); /* Find an object with the sagment name */
mbed_official	5:b3b3370574cf	2034	ns = dp->fn[NSFLAG];
mbed_official	5:b3b3370574cf	2035	if (res != FR_OK) { /* Failed to find the object */
mbed_official	5:b3b3370574cf	2036	if (res == FR_NO_FILE) { /* Object is not found */
mbed_official	5:b3b3370574cf	2037	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, */
mbed_official	5:b3b3370574cf	2038	dp->sclust = 0; dp->FATFS_DIR = 0; /* it is the root directory and stay there */
mbed_official	5:b3b3370574cf	2039	if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */
mbed_official	5:b3b3370574cf	2040	res = FR_OK; /* Ended at the root directroy. Function completed. */
mbed_official	5:b3b3370574cf	2041	} else { /* Could not find the object */
mbed_official	5:b3b3370574cf	2042	if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */
mbed_official	5:b3b3370574cf	2043	}
mbed_official	5:b3b3370574cf	2044	}
mbed_official	5:b3b3370574cf	2045	break;
mbed_official	5:b3b3370574cf	2046	}
mbed_official	5:b3b3370574cf	2047	if (ns & NS_LAST) break; /* Last segment matched. Function completed. */
mbed_official	5:b3b3370574cf	2048	FATFS_DIR = dp->FATFS_DIR; /* Follow the sub-directory */
mbed_official	5:b3b3370574cf	2049	if (!(FATFS_DIR[DIR_Attr] & AM_DIR)) { /* It is not a sub-directory and cannot follow */
mbed_official	5:b3b3370574cf	2050	res = FR_NO_PATH; break;
mbed_official	5:b3b3370574cf	2051	}
mbed_official	5:b3b3370574cf	2052	dp->sclust = ld_clust(dp->fs, FATFS_DIR);
mbed_official	5:b3b3370574cf	2053	}
mbed_official	5:b3b3370574cf	2054	}
mbed_official	5:b3b3370574cf	2055
mbed_official	5:b3b3370574cf	2056	return res;
emilmont	1:46ce1e16c870	2057	}
emilmont	1:46ce1e16c870	2058
emilmont	1:46ce1e16c870	2059
emilmont	1:46ce1e16c870	2060
emilmont	1:46ce1e16c870	2061
emilmont	1:46ce1e16c870	2062	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2063	/* Get logical drive number from path name */
emilmont	1:46ce1e16c870	2064	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2065
emilmont	1:46ce1e16c870	2066	static
mbed_official	5:b3b3370574cf	2067	int get_ldnumber ( /* Returns logical drive number (-1:invalid drive) */
mbed_official	5:b3b3370574cf	2068	const TCHAR** path /* Pointer to pointer to the path name */
emilmont	1:46ce1e16c870	2069	)
emilmont	1:46ce1e16c870	2070	{
mbed_official	5:b3b3370574cf	2071	const TCHAR tp, tt;
mbed_official	5:b3b3370574cf	2072	UINT i;
mbed_official	5:b3b3370574cf	2073	int vol = -1;
mbed_official	5:b3b3370574cf	2074	#if _STR_VOLUME_ID /* Find string drive id */
mbed_official	5:b3b3370574cf	2075	static const char* const str[] = {_VOLUME_STRS};
mbed_official	5:b3b3370574cf	2076	const char *sp;
mbed_official	5:b3b3370574cf	2077	char c;
mbed_official	5:b3b3370574cf	2078	TCHAR tc;
mbed_official	5:b3b3370574cf	2079	#endif
mbed_official	5:b3b3370574cf	2080
mbed_official	5:b3b3370574cf	2081
mbed_official	5:b3b3370574cf	2082	if (path) { / If the pointer is not a null */
mbed_official	5:b3b3370574cf	2083	for (tt = path; (UINT)tt >= (_USE_LFN ? ' ' : '!') && tt != ':'; tt++) ; / Find ':' in the path */
mbed_official	5:b3b3370574cf	2084	if (tt == ':') { / If a ':' is exist in the path name */
mbed_official	5:b3b3370574cf	2085	tp = *path;
mbed_official	5:b3b3370574cf	2086	i = *tp++ - '0';
mbed_official	5:b3b3370574cf	2087	if (i < 10 && tp == tt) { /* Is there a numeric drive id? */
mbed_official	5:b3b3370574cf	2088	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
mbed_official	5:b3b3370574cf	2089	vol = (int)i;
mbed_official	5:b3b3370574cf	2090	*path = ++tt;
mbed_official	5:b3b3370574cf	2091	}
mbed_official	5:b3b3370574cf	2092	}
mbed_official	5:b3b3370574cf	2093	#if _STR_VOLUME_ID
mbed_official	5:b3b3370574cf	2094	else { /* No numeric drive number, find string drive id */
mbed_official	5:b3b3370574cf	2095	i = 0; tt++;
mbed_official	5:b3b3370574cf	2096	do {
mbed_official	5:b3b3370574cf	2097	sp = str[i]; tp = *path;
mbed_official	5:b3b3370574cf	2098	do { /* Compare a string drive id with path name */
mbed_official	5:b3b3370574cf	2099	c = sp++; tc = tp++;
mbed_official	5:b3b3370574cf	2100	if (IsLower(tc)) tc -= 0x20;
mbed_official	5:b3b3370574cf	2101	} while (c && (TCHAR)c == tc);
mbed_official	5:b3b3370574cf	2102	} while ((c \|\| tp != tt) && ++i < _VOLUMES); /* Repeat for each id until pattern match */
mbed_official	5:b3b3370574cf	2103	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
mbed_official	5:b3b3370574cf	2104	vol = (int)i;
mbed_official	5:b3b3370574cf	2105	*path = tt;
mbed_official	5:b3b3370574cf	2106	}
mbed_official	5:b3b3370574cf	2107	}
mbed_official	5:b3b3370574cf	2108	#endif
mbed_official	5:b3b3370574cf	2109	return vol;
mbed_official	5:b3b3370574cf	2110	}
mbed_official	5:b3b3370574cf	2111	#if _FS_RPATH && _VOLUMES >= 2
mbed_official	5:b3b3370574cf	2112	vol = CurrVol; /* Current drive */
mbed_official	5:b3b3370574cf	2113	#else
mbed_official	5:b3b3370574cf	2114	vol = 0; /* Drive 0 */
mbed_official	5:b3b3370574cf	2115	#endif
mbed_official	5:b3b3370574cf	2116	}
mbed_official	5:b3b3370574cf	2117	return vol;
mbed_official	5:b3b3370574cf	2118	}
mbed_official	5:b3b3370574cf	2119
mbed_official	5:b3b3370574cf	2120
mbed_official	5:b3b3370574cf	2121
mbed_official	5:b3b3370574cf	2122
mbed_official	5:b3b3370574cf	2123	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2124	/* Load a sector and check if it is an FAT boot sector */
mbed_official	5:b3b3370574cf	2125	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2126
mbed_official	5:b3b3370574cf	2127	static
mbed_official	5:b3b3370574cf	2128	BYTE check_fs ( /* 0:FAT boor sector, 1:Valid boor sector but not FAT, 2:Not a boot sector, 3:Disk error */
mbed_official	5:b3b3370574cf	2129	FATFS* fs, /* File system object */
mbed_official	5:b3b3370574cf	2130	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
mbed_official	5:b3b3370574cf	2131	)
mbed_official	5:b3b3370574cf	2132	{
mbed_official	5:b3b3370574cf	2133	fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */
mbed_official	5:b3b3370574cf	2134	if (move_window(fs, sect) != FR_OK) /* Load boot record */
mbed_official	5:b3b3370574cf	2135	return 3;
mbed_official	5:b3b3370574cf	2136
mbed_official	5:b3b3370574cf	2137	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	2138	return 2;
mbed_official	5:b3b3370574cf	2139
mbed_official	5:b3b3370574cf	2140	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
mbed_official	5:b3b3370574cf	2141	return 0;
mbed_official	5:b3b3370574cf	2142	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
mbed_official	5:b3b3370574cf	2143	return 0;
mbed_official	5:b3b3370574cf	2144
mbed_official	5:b3b3370574cf	2145	return 1;
emilmont	1:46ce1e16c870	2146	}
emilmont	1:46ce1e16c870	2147
emilmont	1:46ce1e16c870	2148
emilmont	1:46ce1e16c870	2149
emilmont	1:46ce1e16c870	2150
emilmont	1:46ce1e16c870	2151	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2152	/* Find logical drive and check if the volume is mounted */
emilmont	1:46ce1e16c870	2153	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2154
emilmont	1:46ce1e16c870	2155	static
mbed_official	5:b3b3370574cf	2156	FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */
mbed_official	5:b3b3370574cf	2157	FATFS** rfs, /* Pointer to pointer to the found file system object */
mbed_official	5:b3b3370574cf	2158	const TCHAR** path, /* Pointer to pointer to the path name (drive number) */
mbed_official	5:b3b3370574cf	2159	BYTE wmode /* !=0: Check write protection for write access */
emilmont	1:46ce1e16c870	2160	)
emilmont	1:46ce1e16c870	2161	{
mbed_official	5:b3b3370574cf	2162	BYTE fmt, *pt;
mbed_official	5:b3b3370574cf	2163	int vol;
mbed_official	5:b3b3370574cf	2164	DSTATUS stat;
mbed_official	5:b3b3370574cf	2165	DWORD bsect, fasize, tsect, sysect, nclst, szbfat, br[4];
mbed_official	5:b3b3370574cf	2166	WORD nrsv;
mbed_official	5:b3b3370574cf	2167	FATFS *fs;
mbed_official	5:b3b3370574cf	2168	UINT i;
mbed_official	5:b3b3370574cf	2169
mbed_official	5:b3b3370574cf	2170
mbed_official	5:b3b3370574cf	2171	/* Get logical drive number from the path name */
mbed_official	5:b3b3370574cf	2172	*rfs = 0;
mbed_official	5:b3b3370574cf	2173	vol = get_ldnumber(path);
mbed_official	5:b3b3370574cf	2174	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	2175
mbed_official	5:b3b3370574cf	2176	/* Check if the file system object is valid or not */
mbed_official	5:b3b3370574cf	2177	fs = FatFs[vol]; /* Get pointer to the file system object */
mbed_official	5:b3b3370574cf	2178	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
mbed_official	5:b3b3370574cf	2179
mbed_official	5:b3b3370574cf	2180	ENTER_FF(fs); /* Lock the volume */
mbed_official	5:b3b3370574cf	2181	rfs = fs; / Return pointer to the file system object */
mbed_official	5:b3b3370574cf	2182
mbed_official	5:b3b3370574cf	2183	if (fs->fs_type) { /* If the volume has been mounted */
mbed_official	5:b3b3370574cf	2184	stat = disk_status(fs->drv);
mbed_official	5:b3b3370574cf	2185	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */
mbed_official	5:b3b3370574cf	2186	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
mbed_official	5:b3b3370574cf	2187	return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	2188	return FR_OK; /* The file system object is valid */
mbed_official	5:b3b3370574cf	2189	}
mbed_official	5:b3b3370574cf	2190	}
mbed_official	5:b3b3370574cf	2191
mbed_official	5:b3b3370574cf	2192	/* The file system object is not valid. */
mbed_official	5:b3b3370574cf	2193	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
mbed_official	5:b3b3370574cf	2194
mbed_official	5:b3b3370574cf	2195	fs->fs_type = 0; /* Clear the file system object */
mbed_official	5:b3b3370574cf	2196	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
mbed_official	5:b3b3370574cf	2197	stat = disk_initialize(fs->drv); /* Initialize the physical drive */
mbed_official	5:b3b3370574cf	2198	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
mbed_official	5:b3b3370574cf	2199	return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
mbed_official	5:b3b3370574cf	2200	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
mbed_official	5:b3b3370574cf	2201	return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	2202	#if _MAX_SS != _MIN_SS /* Get sector size (multiple sector size cfg only) */
mbed_official	5:b3b3370574cf	2203	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
mbed_official	5:b3b3370574cf	2204	\|\| SS(fs) < _MIN_SS \|\| SS(fs) > _MAX_SS) return FR_DISK_ERR;
emilmont	1:46ce1e16c870	2205	#endif
mbed_official	5:b3b3370574cf	2206	/* Find an FAT partition on the drive. Supports only generic partitioning, FDISK and SFD. */
mbed_official	5:b3b3370574cf	2207	bsect = 0;
mbed_official	5:b3b3370574cf	2208	fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT boot sector as SFD */
mbed_official	5:b3b3370574cf	2209	if (fmt == 1 \|\| (!fmt && (LD2PT(vol)))) { /* Not an FAT boot sector or forced partition number */
mbed_official	5:b3b3370574cf	2210	for (i = 0; i < 4; i++) { /* Get partition offset */
mbed_official	5:b3b3370574cf	2211	pt = fs->win + MBR_Table + i * SZ_PTE;
mbed_official	5:b3b3370574cf	2212	br[i] = pt[4] ? LD_DWORD(&pt[8]) : 0;
mbed_official	5:b3b3370574cf	2213	}
mbed_official	5:b3b3370574cf	2214	i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */
mbed_official	5:b3b3370574cf	2215	if (i) i--;
mbed_official	5:b3b3370574cf	2216	do { /* Find an FAT volume */
mbed_official	5:b3b3370574cf	2217	bsect = br[i];
mbed_official	5:b3b3370574cf	2218	fmt = bsect ? check_fs(fs, bsect) : 2; /* Check the partition */
mbed_official	5:b3b3370574cf	2219	} while (!LD2PT(vol) && fmt && ++i < 4);
mbed_official	5:b3b3370574cf	2220	}
mbed_official	5:b3b3370574cf	2221	if (fmt == 3) return FR_DISK_ERR; /* An error occured in the disk I/O layer */
mbed_official	5:b3b3370574cf	2222	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
mbed_official	5:b3b3370574cf	2223
mbed_official	5:b3b3370574cf	2224	/* An FAT volume is found. Following code initializes the file system object */
mbed_official	5:b3b3370574cf	2225
mbed_official	5:b3b3370574cf	2226	if (LD_WORD(fs->win + BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
mbed_official	5:b3b3370574cf	2227	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2228
mbed_official	5:b3b3370574cf	2229	fasize = LD_WORD(fs->win + BPB_FATSz16); /* Number of sectors per FAT */
mbed_official	5:b3b3370574cf	2230	if (!fasize) fasize = LD_DWORD(fs->win + BPB_FATSz32);
mbed_official	5:b3b3370574cf	2231	fs->fsize = fasize;
mbed_official	5:b3b3370574cf	2232
mbed_official	5:b3b3370574cf	2233	fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */
mbed_official	5:b3b3370574cf	2234	if (fs->n_fats != 1 && fs->n_fats != 2) /* (Must be 1 or 2) */
mbed_official	5:b3b3370574cf	2235	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2236	fasize = fs->n_fats; / Number of sectors for FAT area */
mbed_official	5:b3b3370574cf	2237
mbed_official	5:b3b3370574cf	2238	fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
mbed_official	5:b3b3370574cf	2239	if (!fs->csize \|\| (fs->csize & (fs->csize - 1))) /* (Must be power of 2) */
mbed_official	5:b3b3370574cf	2240	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2241
mbed_official	5:b3b3370574cf	2242	fs->n_rootdir = LD_WORD(fs->win + BPB_RootEntCnt); /* Number of root directory entries */
mbed_official	5:b3b3370574cf	2243	if (fs->n_rootdir % (SS(fs) / SZ_DIRE)) /* (Must be sector aligned) */
mbed_official	5:b3b3370574cf	2244	return FR_NO_FILESYSTEM;
mbed_official	5:b3b3370574cf	2245
mbed_official	5:b3b3370574cf	2246	tsect = LD_WORD(fs->win + BPB_TotSec16); /* Number of sectors on the volume */
mbed_official	5:b3b3370574cf	2247	if (!tsect) tsect = LD_DWORD(fs->win + BPB_TotSec32);
mbed_official	5:b3b3370574cf	2248
mbed_official	5:b3b3370574cf	2249	nrsv = LD_WORD(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */
mbed_official	5:b3b3370574cf	2250	if (!nrsv) return FR_NO_FILESYSTEM; /* (Must not be 0) */
mbed_official	5:b3b3370574cf	2251
mbed_official	5:b3b3370574cf	2252	/* Determine the FAT sub type */
mbed_official	5:b3b3370574cf	2253	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIRE); /* RSV + FAT + FATFS_DIR */
mbed_official	5:b3b3370574cf	2254	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mbed_official	5:b3b3370574cf	2255	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
mbed_official	5:b3b3370574cf	2256	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mbed_official	5:b3b3370574cf	2257	fmt = FS_FAT12;
mbed_official	5:b3b3370574cf	2258	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
mbed_official	5:b3b3370574cf	2259	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
mbed_official	5:b3b3370574cf	2260
mbed_official	5:b3b3370574cf	2261	/* Boundaries and Limits */
mbed_official	5:b3b3370574cf	2262	fs->n_fatent = nclst + 2; /* Number of FAT entries */
mbed_official	5:b3b3370574cf	2263	fs->volbase = bsect; /* Volume start sector */
mbed_official	5:b3b3370574cf	2264	fs->fatbase = bsect + nrsv; /* FAT start sector */
mbed_official	5:b3b3370574cf	2265	fs->database = bsect + sysect; /* Data start sector */
mbed_official	5:b3b3370574cf	2266	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	2267	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
mbed_official	5:b3b3370574cf	2268	fs->dirbase = LD_DWORD(fs->win + BPB_RootClus); /* Root directory start cluster */
mbed_official	5:b3b3370574cf	2269	szbfat = fs->n_fatent * 4; /* (Needed FAT size) */
mbed_official	5:b3b3370574cf	2270	} else {
mbed_official	5:b3b3370574cf	2271	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
mbed_official	5:b3b3370574cf	2272	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
mbed_official	5:b3b3370574cf	2273	szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */
mbed_official	5:b3b3370574cf	2274	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
mbed_official	5:b3b3370574cf	2275	}
mbed_official	5:b3b3370574cf	2276	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than the size needed) */
mbed_official	5:b3b3370574cf	2277	return FR_NO_FILESYSTEM;
emilmont	1:46ce1e16c870	2278
emilmont	1:46ce1e16c870	2279	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2280	/* Initialize cluster allocation information */
mbed_official	5:b3b3370574cf	2281	fs->last_clust = fs->free_clust = 0xFFFFFFFF;
mbed_official	5:b3b3370574cf	2282
mbed_official	5:b3b3370574cf	2283	/* Get fsinfo if available */
mbed_official	5:b3b3370574cf	2284	fs->fsi_flag = 0x80;
mbed_official	5:b3b3370574cf	2285	#if (_FS_NOFSINFO & 3) != 3
mbed_official	5:b3b3370574cf	2286	if (fmt == FS_FAT32 /* Enable FSINFO only if FAT32 and BPB_FSInfo is 1 */
mbed_official	5:b3b3370574cf	2287	&& LD_WORD(fs->win + BPB_FSInfo) == 1
mbed_official	5:b3b3370574cf	2288	&& move_window(fs, bsect + 1) == FR_OK)
mbed_official	5:b3b3370574cf	2289	{
mbed_official	5:b3b3370574cf	2290	fs->fsi_flag = 0;
mbed_official	5:b3b3370574cf	2291	if (LD_WORD(fs->win + BS_55AA) == 0xAA55 /* Load FSINFO data if available */
mbed_official	5:b3b3370574cf	2292	&& LD_DWORD(fs->win + FSI_LeadSig) == 0x41615252
mbed_official	5:b3b3370574cf	2293	&& LD_DWORD(fs->win + FSI_StrucSig) == 0x61417272)
mbed_official	5:b3b3370574cf	2294	{
mbed_official	5:b3b3370574cf	2295	#if (_FS_NOFSINFO & 1) == 0
mbed_official	5:b3b3370574cf	2296	fs->free_clust = LD_DWORD(fs->win + FSI_Free_Count);
emilmont	1:46ce1e16c870	2297	#endif
mbed_official	5:b3b3370574cf	2298	#if (_FS_NOFSINFO & 2) == 0
mbed_official	5:b3b3370574cf	2299	fs->last_clust = LD_DWORD(fs->win + FSI_Nxt_Free);
mbed_official	5:b3b3370574cf	2300	#endif
mbed_official	5:b3b3370574cf	2301	}
mbed_official	5:b3b3370574cf	2302	}
mbed_official	5:b3b3370574cf	2303	#endif
mbed_official	5:b3b3370574cf	2304	#endif
mbed_official	5:b3b3370574cf	2305	fs->fs_type = fmt; /* FAT sub-type */
mbed_official	5:b3b3370574cf	2306	fs->id = ++Fsid; /* File system mount ID */
emilmont	1:46ce1e16c870	2307	#if _FS_RPATH
mbed_official	5:b3b3370574cf	2308	fs->cdir = 0; /* Set current directory to root */
emilmont	1:46ce1e16c870	2309	#endif
mbed_official	5:b3b3370574cf	2310	#if _FS_LOCK /* Clear file lock semaphores */
mbed_official	5:b3b3370574cf	2311	clear_lock(fs);
emilmont	1:46ce1e16c870	2312	#endif
emilmont	1:46ce1e16c870	2313
mbed_official	5:b3b3370574cf	2314	return FR_OK;
emilmont	1:46ce1e16c870	2315	}
emilmont	1:46ce1e16c870	2316
emilmont	1:46ce1e16c870	2317
emilmont	1:46ce1e16c870	2318
emilmont	1:46ce1e16c870	2319
emilmont	1:46ce1e16c870	2320	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2321	/* Check if the file/directory object is valid or not */
emilmont	1:46ce1e16c870	2322	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2323
emilmont	1:46ce1e16c870	2324	static
mbed_official	5:b3b3370574cf	2325	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
mbed_official	5:b3b3370574cf	2326	void* obj /* Pointer to the object FIL/FATFS_DIR to check validity */
emilmont	1:46ce1e16c870	2327	)
emilmont	1:46ce1e16c870	2328	{
mbed_official	5:b3b3370574cf	2329	FIL fil = (FIL)obj; /* Assuming offset of .fs and .id in the FIL/FATFS_DIR structure is identical */
mbed_official	5:b3b3370574cf	2330
mbed_official	5:b3b3370574cf	2331
mbed_official	5:b3b3370574cf	2332	if (!fil \|\| !fil->fs \|\| !fil->fs->fs_type \|\| fil->fs->id != fil->id)
mbed_official	5:b3b3370574cf	2333	return FR_INVALID_OBJECT;
mbed_official	5:b3b3370574cf	2334
mbed_official	5:b3b3370574cf	2335	ENTER_FF(fil->fs); /* Lock file system */
mbed_official	5:b3b3370574cf	2336
mbed_official	5:b3b3370574cf	2337	if (disk_status(fil->fs->drv) & STA_NOINIT)
mbed_official	5:b3b3370574cf	2338	return FR_NOT_READY;
mbed_official	5:b3b3370574cf	2339
mbed_official	5:b3b3370574cf	2340	return FR_OK;
emilmont	1:46ce1e16c870	2341	}
emilmont	1:46ce1e16c870	2342
emilmont	1:46ce1e16c870	2343
emilmont	1:46ce1e16c870	2344
emilmont	1:46ce1e16c870	2345
emilmont	1:46ce1e16c870	2346	/*--------------------------------------------------------------------------
emilmont	1:46ce1e16c870	2347
emilmont	1:46ce1e16c870	2348	Public Functions
emilmont	1:46ce1e16c870	2349
emilmont	1:46ce1e16c870	2350	--------------------------------------------------------------------------*/
emilmont	1:46ce1e16c870	2351
emilmont	1:46ce1e16c870	2352
emilmont	1:46ce1e16c870	2353
emilmont	1:46ce1e16c870	2354	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2355	/* Mount/Unmount a Logical Drive */
emilmont	1:46ce1e16c870	2356	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2357
emilmont	1:46ce1e16c870	2358	FRESULT f_mount (
mbed_official	5:b3b3370574cf	2359	FATFS* fs, /* Pointer to the file system object (NULL:unmount)*/
mbed_official	5:b3b3370574cf	2360	const TCHAR* path, /* Logical drive number to be mounted/unmounted */
mbed_official	5:b3b3370574cf	2361	BYTE opt /* 0:Do not mount (delayed mount), 1:Mount immediately */
emilmont	1:46ce1e16c870	2362	)
emilmont	1:46ce1e16c870	2363	{
mbed_official	5:b3b3370574cf	2364	FATFS *cfs;
mbed_official	5:b3b3370574cf	2365	int vol;
mbed_official	5:b3b3370574cf	2366	FRESULT res;
mbed_official	5:b3b3370574cf	2367	const TCHAR *rp = path;
mbed_official	5:b3b3370574cf	2368
mbed_official	5:b3b3370574cf	2369
mbed_official	5:b3b3370574cf	2370	vol = get_ldnumber(&rp);
mbed_official	5:b3b3370574cf	2371	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	2372	cfs = FatFs[vol]; /* Pointer to fs object */
mbed_official	5:b3b3370574cf	2373
mbed_official	5:b3b3370574cf	2374	if (cfs) {
emilmont	1:46ce1e16c870	2375	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2376	clear_lock(cfs);
emilmont	1:46ce1e16c870	2377	#endif
mbed_official	5:b3b3370574cf	2378	#if _FS_REENTRANT /* Discard sync object of the current volume */
mbed_official	5:b3b3370574cf	2379	if (!ff_del_syncobj(cfs->sobj)) return FR_INT_ERR;
emilmont	1:46ce1e16c870	2380	#endif
mbed_official	5:b3b3370574cf	2381	cfs->fs_type = 0; /* Clear old fs object */
mbed_official	5:b3b3370574cf	2382	}
mbed_official	5:b3b3370574cf	2383
mbed_official	5:b3b3370574cf	2384	if (fs) {
mbed_official	5:b3b3370574cf	2385	fs->fs_type = 0; /* Clear new fs object */
mbed_official	5:b3b3370574cf	2386	#if _FS_REENTRANT /* Create sync object for the new volume */
mbed_official	5:b3b3370574cf	2387	if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR;
emilmont	1:46ce1e16c870	2388	#endif
mbed_official	5:b3b3370574cf	2389	}
mbed_official	5:b3b3370574cf	2390	FatFs[vol] = fs; /* Register new fs object */
mbed_official	5:b3b3370574cf	2391
mbed_official	5:b3b3370574cf	2392	if (!fs \|\| opt != 1) return FR_OK; /* Do not mount now, it will be mounted later */
mbed_official	5:b3b3370574cf	2393
mbed_official	5:b3b3370574cf	2394	res = find_volume(&fs, &path, 0); /* Force mounted the volume */
mbed_official	5:b3b3370574cf	2395	LEAVE_FF(fs, res);
emilmont	1:46ce1e16c870	2396	}
emilmont	1:46ce1e16c870	2397
emilmont	1:46ce1e16c870	2398
emilmont	1:46ce1e16c870	2399
emilmont	1:46ce1e16c870	2400
emilmont	1:46ce1e16c870	2401	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2402	/* Open or Create a File */
emilmont	1:46ce1e16c870	2403	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2404
emilmont	1:46ce1e16c870	2405	FRESULT f_open (
mbed_official	5:b3b3370574cf	2406	FIL* fp, /* Pointer to the blank file object */
mbed_official	5:b3b3370574cf	2407	const TCHAR* path, /* Pointer to the file name */
mbed_official	5:b3b3370574cf	2408	BYTE mode /* Access mode and file open mode flags */
emilmont	1:46ce1e16c870	2409	)
emilmont	1:46ce1e16c870	2410	{
mbed_official	5:b3b3370574cf	2411	FRESULT res;
mbed_official	5:b3b3370574cf	2412	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	2413	BYTE *FATFS_DIR;
mbed_official	5:b3b3370574cf	2414	DEFINE_NAMEBUF;
emilmont	1:46ce1e16c870	2415	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2416	DWORD dw, cl;
mbed_official	5:b3b3370574cf	2417	#endif
mbed_official	5:b3b3370574cf	2418
mbed_official	5:b3b3370574cf	2419
mbed_official	5:b3b3370574cf	2420	if (!fp) return FR_INVALID_OBJECT;
mbed_official	5:b3b3370574cf	2421	fp->fs = 0; /* Clear file object */
mbed_official	5:b3b3370574cf	2422
mbed_official	5:b3b3370574cf	2423	/* Get logical drive number */
mbed_official	5:b3b3370574cf	2424	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2425	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
mbed_official	5:b3b3370574cf	2426	res = find_volume(&dj.fs, &path, (BYTE)(mode & ~FA_READ));
emilmont	1:46ce1e16c870	2427	#else
mbed_official	5:b3b3370574cf	2428	mode &= FA_READ;
mbed_official	5:b3b3370574cf	2429	res = find_volume(&dj.fs, &path, 0);
emilmont	1:46ce1e16c870	2430	#endif
mbed_official	5:b3b3370574cf	2431	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2432	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	2433	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	2434	FATFS_DIR = dj.FATFS_DIR;
mbed_official	5:b3b3370574cf	2435	#if !_FS_READONLY /* R/W configuration */
mbed_official	5:b3b3370574cf	2436	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2437	if (!FATFS_DIR) /* Default directory itself */
mbed_official	5:b3b3370574cf	2438	res = FR_INVALID_NAME;
emilmont	1:46ce1e16c870	2439	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2440	else
mbed_official	5:b3b3370574cf	2441	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
emilmont	1:46ce1e16c870	2442	#endif
mbed_official	5:b3b3370574cf	2443	}
mbed_official	5:b3b3370574cf	2444	/* Create or Open a file */
mbed_official	5:b3b3370574cf	2445	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
mbed_official	5:b3b3370574cf	2446	if (res != FR_OK) { /* No file, create new */
mbed_official	5:b3b3370574cf	2447	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
emilmont	1:46ce1e16c870	2448	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2449	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
emilmont	1:46ce1e16c870	2450	#else
mbed_official	5:b3b3370574cf	2451	res = dir_register(&dj);
emilmont	1:46ce1e16c870	2452	#endif
mbed_official	5:b3b3370574cf	2453	mode \|= FA_CREATE_ALWAYS; /* File is created */
mbed_official	5:b3b3370574cf	2454	FATFS_DIR = dj.FATFS_DIR; /* New entry */
mbed_official	5:b3b3370574cf	2455	}
mbed_official	5:b3b3370574cf	2456	else { /* Any object is already existing */
mbed_official	5:b3b3370574cf	2457	if (FATFS_DIR[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or FATFS_DIR) */
mbed_official	5:b3b3370574cf	2458	res = FR_DENIED;
mbed_official	5:b3b3370574cf	2459	} else {
mbed_official	5:b3b3370574cf	2460	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
mbed_official	5:b3b3370574cf	2461	res = FR_EXIST;
mbed_official	5:b3b3370574cf	2462	}
mbed_official	5:b3b3370574cf	2463	}
mbed_official	5:b3b3370574cf	2464	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
mbed_official	5:b3b3370574cf	2465	dw = GET_FATTIME(); /* Created time */
mbed_official	5:b3b3370574cf	2466	ST_DWORD(FATFS_DIR + DIR_CrtTime, dw);
mbed_official	5:b3b3370574cf	2467	FATFS_DIR[DIR_Attr] = 0; /* Reset attribute */
mbed_official	5:b3b3370574cf	2468	ST_DWORD(FATFS_DIR + DIR_FileSize, 0);/* size = 0 */
mbed_official	5:b3b3370574cf	2469	cl = ld_clust(dj.fs, FATFS_DIR); /* Get start cluster */
mbed_official	5:b3b3370574cf	2470	st_clust(FATFS_DIR, 0); /* cluster = 0 */
mbed_official	5:b3b3370574cf	2471	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	2472	if (cl) { /* Remove the cluster chain if exist */
mbed_official	5:b3b3370574cf	2473	dw = dj.fs->winsect;
mbed_official	5:b3b3370574cf	2474	res = remove_chain(dj.fs, cl);
mbed_official	5:b3b3370574cf	2475	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2476	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
mbed_official	5:b3b3370574cf	2477	res = move_window(dj.fs, dw);
mbed_official	5:b3b3370574cf	2478	}
mbed_official	5:b3b3370574cf	2479	}
mbed_official	5:b3b3370574cf	2480	}
mbed_official	5:b3b3370574cf	2481	}
mbed_official	5:b3b3370574cf	2482	else { /* Open an existing file */
mbed_official	5:b3b3370574cf	2483	if (res == FR_OK) { /* Follow succeeded */
mbed_official	5:b3b3370574cf	2484	if (FATFS_DIR[DIR_Attr] & AM_DIR) { /* It is a directory */
mbed_official	5:b3b3370574cf	2485	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	2486	} else {
mbed_official	5:b3b3370574cf	2487	if ((mode & FA_WRITE) && (FATFS_DIR[DIR_Attr] & AM_RDO)) /* R/O violation */
mbed_official	5:b3b3370574cf	2488	res = FR_DENIED;
mbed_official	5:b3b3370574cf	2489	}
mbed_official	5:b3b3370574cf	2490	}
mbed_official	5:b3b3370574cf	2491	}
mbed_official	5:b3b3370574cf	2492	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2493	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
mbed_official	5:b3b3370574cf	2494	mode \|= FA__WRITTEN;
mbed_official	5:b3b3370574cf	2495	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
mbed_official	5:b3b3370574cf	2496	fp->dir_ptr = FATFS_DIR;
emilmont	1:46ce1e16c870	2497	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2498	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
mbed_official	5:b3b3370574cf	2499	if (!fp->lockid) res = FR_INT_ERR;
emilmont	1:46ce1e16c870	2500	#endif
mbed_official	5:b3b3370574cf	2501	}
mbed_official	5:b3b3370574cf	2502
mbed_official	5:b3b3370574cf	2503	#else /* R/O configuration */
mbed_official	5:b3b3370574cf	2504	if (res == FR_OK) { /* Follow succeeded */
mbed_official	5:b3b3370574cf	2505	FATFS_DIR = dj.FATFS_DIR;
mbed_official	5:b3b3370574cf	2506	if (!FATFS_DIR) { /* Current directory itself */
mbed_official	5:b3b3370574cf	2507	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	2508	} else {
mbed_official	5:b3b3370574cf	2509	if (FATFS_DIR[DIR_Attr] & AM_DIR) /* It is a directory */
mbed_official	5:b3b3370574cf	2510	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	2511	}
mbed_official	5:b3b3370574cf	2512	}
emilmont	1:46ce1e16c870	2513	#endif
mbed_official	5:b3b3370574cf	2514	FREE_BUF();
mbed_official	5:b3b3370574cf	2515
mbed_official	5:b3b3370574cf	2516	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2517	fp->flag = mode; /* File access mode */
mbed_official	5:b3b3370574cf	2518	fp->err = 0; /* Clear error flag */
mbed_official	5:b3b3370574cf	2519	fp->sclust = ld_clust(dj.fs, FATFS_DIR); /* File start cluster */
mbed_official	5:b3b3370574cf	2520	fp->fsize = LD_DWORD(FATFS_DIR + DIR_FileSize); /* File size */
mbed_official	5:b3b3370574cf	2521	fp->fptr = 0; /* File pointer */
mbed_official	5:b3b3370574cf	2522	fp->dsect = 0;
emilmont	1:46ce1e16c870	2523	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	2524	fp->cltbl = 0; /* Normal seek mode */
emilmont	1:46ce1e16c870	2525	#endif
mbed_official	5:b3b3370574cf	2526	fp->fs = dj.fs; /* Validate file object */
mbed_official	5:b3b3370574cf	2527	fp->id = fp->fs->id;
mbed_official	5:b3b3370574cf	2528	}
mbed_official	5:b3b3370574cf	2529	}
mbed_official	5:b3b3370574cf	2530
mbed_official	5:b3b3370574cf	2531	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	2532	}
emilmont	1:46ce1e16c870	2533
emilmont	1:46ce1e16c870	2534
emilmont	1:46ce1e16c870	2535
emilmont	1:46ce1e16c870	2536
emilmont	1:46ce1e16c870	2537	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2538	/* Read File */
emilmont	1:46ce1e16c870	2539	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2540
emilmont	1:46ce1e16c870	2541	FRESULT f_read (
mbed_official	5:b3b3370574cf	2542	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	2543	void* buff, /* Pointer to data buffer */
mbed_official	5:b3b3370574cf	2544	UINT btr, /* Number of bytes to read */
mbed_official	5:b3b3370574cf	2545	UINT* br /* Pointer to number of bytes read */
emilmont	1:46ce1e16c870	2546	)
emilmont	1:46ce1e16c870	2547	{
mbed_official	5:b3b3370574cf	2548	FRESULT res;
mbed_official	5:b3b3370574cf	2549	DWORD clst, sect, remain;
mbed_official	5:b3b3370574cf	2550	UINT rcnt, cc;
mbed_official	5:b3b3370574cf	2551	BYTE csect, rbuff = (BYTE)buff;
mbed_official	5:b3b3370574cf	2552
mbed_official	5:b3b3370574cf	2553
mbed_official	5:b3b3370574cf	2554	br = 0; / Clear read byte counter */
mbed_official	5:b3b3370574cf	2555
mbed_official	5:b3b3370574cf	2556	res = validate(fp); /* Check validity */
mbed_official	5:b3b3370574cf	2557	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	2558	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	2559	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mbed_official	5:b3b3370574cf	2560	if (!(fp->flag & FA_READ)) /* Check access mode */
mbed_official	5:b3b3370574cf	2561	LEAVE_FF(fp->fs, FR_DENIED);
mbed_official	5:b3b3370574cf	2562	remain = fp->fsize - fp->fptr;
mbed_official	5:b3b3370574cf	2563	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
mbed_official	5:b3b3370574cf	2564
mbed_official	5:b3b3370574cf	2565	for ( ; btr; /* Repeat until all data read */
mbed_official	5:b3b3370574cf	2566	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
mbed_official	5:b3b3370574cf	2567	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mbed_official	5:b3b3370574cf	2568	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mbed_official	5:b3b3370574cf	2569	if (!csect) { /* On the cluster boundary? */
mbed_official	5:b3b3370574cf	2570	if (fp->fptr == 0) { /* On the top of the file? */
mbed_official	5:b3b3370574cf	2571	clst = fp->sclust; /* Follow from the origin */
mbed_official	5:b3b3370574cf	2572	} else { /* Middle or end of the file */
emilmont	1:46ce1e16c870	2573	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	2574	if (fp->cltbl)
mbed_official	5:b3b3370574cf	2575	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mbed_official	5:b3b3370574cf	2576	else
emilmont	1:46ce1e16c870	2577	#endif
mbed_official	5:b3b3370574cf	2578	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
mbed_official	5:b3b3370574cf	2579	}
mbed_official	5:b3b3370574cf	2580	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2581	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2582	fp->clust = clst; /* Update current cluster */
mbed_official	5:b3b3370574cf	2583	}
mbed_official	5:b3b3370574cf	2584	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mbed_official	5:b3b3370574cf	2585	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2586	sect += csect;
mbed_official	5:b3b3370574cf	2587	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
mbed_official	5:b3b3370574cf	2588	if (cc) { /* Read maximum contiguous sectors directly */
mbed_official	5:b3b3370574cf	2589	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mbed_official	5:b3b3370574cf	2590	cc = fp->fs->csize - csect;
mbed_official	5:b3b3370574cf	2591	if (disk_read(fp->fs->drv, rbuff, sect, cc) != RES_OK)
mbed_official	5:b3b3370574cf	2592	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2593	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
emilmont	1:46ce1e16c870	2594	#if _FS_TINY
mbed_official	5:b3b3370574cf	2595	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
mbed_official	5:b3b3370574cf	2596	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
emilmont	1:46ce1e16c870	2597	#else
mbed_official	5:b3b3370574cf	2598	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
mbed_official	5:b3b3370574cf	2599	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
emilmont	1:46ce1e16c870	2600	#endif
emilmont	1:46ce1e16c870	2601	#endif
mbed_official	5:b3b3370574cf	2602	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mbed_official	5:b3b3370574cf	2603	continue;
mbed_official	5:b3b3370574cf	2604	}
emilmont	1:46ce1e16c870	2605	#if !_FS_TINY
mbed_official	5:b3b3370574cf	2606	if (fp->dsect != sect) { /* Load data sector if not in cache */
emilmont	1:46ce1e16c870	2607	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2608	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mbed_official	5:b3b3370574cf	2609	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2610	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2611	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2612	}
emilmont	1:46ce1e16c870	2613	#endif
mbed_official	5:b3b3370574cf	2614	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
mbed_official	5:b3b3370574cf	2615	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2616	}
emilmont	1:46ce1e16c870	2617	#endif
mbed_official	5:b3b3370574cf	2618	fp->dsect = sect;
mbed_official	5:b3b3370574cf	2619	}
mbed_official	5:b3b3370574cf	2620	rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
mbed_official	5:b3b3370574cf	2621	if (rcnt > btr) rcnt = btr;
emilmont	1:46ce1e16c870	2622	#if _FS_TINY
mbed_official	5:b3b3370574cf	2623	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
mbed_official	5:b3b3370574cf	2624	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2625	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
emilmont	1:46ce1e16c870	2626	#else
mbed_official	5:b3b3370574cf	2627	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
emilmont	1:46ce1e16c870	2628	#endif
mbed_official	5:b3b3370574cf	2629	}
mbed_official	5:b3b3370574cf	2630
mbed_official	5:b3b3370574cf	2631	LEAVE_FF(fp->fs, FR_OK);
emilmont	1:46ce1e16c870	2632	}
emilmont	1:46ce1e16c870	2633
emilmont	1:46ce1e16c870	2634
emilmont	1:46ce1e16c870	2635
emilmont	1:46ce1e16c870	2636
emilmont	1:46ce1e16c870	2637	#if !_FS_READONLY
emilmont	1:46ce1e16c870	2638	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2639	/* Write File */
emilmont	1:46ce1e16c870	2640	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2641
emilmont	1:46ce1e16c870	2642	FRESULT f_write (
mbed_official	5:b3b3370574cf	2643	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	2644	const void buff, / Pointer to the data to be written */
mbed_official	5:b3b3370574cf	2645	UINT btw, /* Number of bytes to write */
mbed_official	5:b3b3370574cf	2646	UINT* bw /* Pointer to number of bytes written */
emilmont	1:46ce1e16c870	2647	)
emilmont	1:46ce1e16c870	2648	{
mbed_official	5:b3b3370574cf	2649	FRESULT res;
mbed_official	5:b3b3370574cf	2650	DWORD clst, sect;
mbed_official	5:b3b3370574cf	2651	UINT wcnt, cc;
mbed_official	5:b3b3370574cf	2652	const BYTE wbuff = (const BYTE)buff;
mbed_official	5:b3b3370574cf	2653	BYTE csect;
mbed_official	5:b3b3370574cf	2654	bool need_sync = false;
mbed_official	5:b3b3370574cf	2655
mbed_official	5:b3b3370574cf	2656	bw = 0; / Clear write byte counter */
mbed_official	5:b3b3370574cf	2657
mbed_official	5:b3b3370574cf	2658	res = validate(fp); /* Check validity */
mbed_official	5:b3b3370574cf	2659	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	2660	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	2661	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mbed_official	5:b3b3370574cf	2662	if (!(fp->flag & FA_WRITE)) /* Check access mode */
mbed_official	5:b3b3370574cf	2663	LEAVE_FF(fp->fs, FR_DENIED);
mbed_official	5:b3b3370574cf	2664	if (fp->fptr + btw < fp->fptr) btw = 0; /* File size cannot reach 4GB */
mbed_official	5:b3b3370574cf	2665
mbed_official	5:b3b3370574cf	2666	for ( ; btw; /* Repeat until all data written */
mbed_official	5:b3b3370574cf	2667	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
mbed_official	5:b3b3370574cf	2668	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mbed_official	5:b3b3370574cf	2669	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mbed_official	5:b3b3370574cf	2670	if (!csect) { /* On the cluster boundary? */
mbed_official	5:b3b3370574cf	2671	if (fp->fptr == 0) { /* On the top of the file? */
mbed_official	5:b3b3370574cf	2672	clst = fp->sclust; /* Follow from the origin */
mbed_official	5:b3b3370574cf	2673	if (clst == 0) /* When no cluster is allocated, */
mbed_official	5:b3b3370574cf	2674	clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
mbed_official	5:b3b3370574cf	2675	} else { /* Middle or end of the file */
emilmont	1:46ce1e16c870	2676	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	2677	if (fp->cltbl)
mbed_official	5:b3b3370574cf	2678	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mbed_official	5:b3b3370574cf	2679	else
emilmont	1:46ce1e16c870	2680	#endif
mbed_official	5:b3b3370574cf	2681	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
mbed_official	5:b3b3370574cf	2682	}
mbed_official	5:b3b3370574cf	2683	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
mbed_official	5:b3b3370574cf	2684	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2685	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2686	fp->clust = clst; /* Update current cluster */
mbed_official	5:b3b3370574cf	2687	if (fp->sclust == 0) fp->sclust = clst; /* Set start cluster if the first write */
mbed_official	5:b3b3370574cf	2688
mbed_official	4:3ff2606d5713	2689	#ifdef FLUSH_ON_NEW_CLUSTER
mbed_official	4:3ff2606d5713	2690	// We do not need to flush for the first cluster
mbed_official	4:3ff2606d5713	2691	if (fp->fptr != 0) {
mbed_official	4:3ff2606d5713	2692	need_sync = true;
mbed_official	4:3ff2606d5713	2693	}
mbed_official	4:3ff2606d5713	2694	#endif
mbed_official	5:b3b3370574cf	2695	}
emilmont	1:46ce1e16c870	2696	#if _FS_TINY
mbed_official	5:b3b3370574cf	2697	if (fp->fs->winsect == fp->dsect && sync_window(fp->fs)) /* Write-back sector cache */
mbed_official	5:b3b3370574cf	2698	ABORT(fp->fs, FR_DISK_ERR);
emilmont	1:46ce1e16c870	2699	#else
mbed_official	5:b3b3370574cf	2700	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
mbed_official	5:b3b3370574cf	2701	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2702	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2703	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2704	}
emilmont	1:46ce1e16c870	2705	#endif
mbed_official	5:b3b3370574cf	2706	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mbed_official	5:b3b3370574cf	2707	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	2708	sect += csect;
mbed_official	5:b3b3370574cf	2709	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
mbed_official	5:b3b3370574cf	2710	if (cc) { /* Write maximum contiguous sectors directly */
mbed_official	5:b3b3370574cf	2711	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mbed_official	5:b3b3370574cf	2712	cc = fp->fs->csize - csect;
mbed_official	5:b3b3370574cf	2713	if (disk_write(fp->fs->drv, wbuff, sect, cc) != RES_OK)
mbed_official	5:b3b3370574cf	2714	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2715	#if _FS_MINIMIZE <= 2
emilmont	1:46ce1e16c870	2716	#if _FS_TINY
mbed_official	5:b3b3370574cf	2717	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mbed_official	5:b3b3370574cf	2718	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
mbed_official	5:b3b3370574cf	2719	fp->fs->wflag = 0;
mbed_official	5:b3b3370574cf	2720	}
emilmont	1:46ce1e16c870	2721	#else
mbed_official	5:b3b3370574cf	2722	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mbed_official	5:b3b3370574cf	2723	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
mbed_official	5:b3b3370574cf	2724	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2725	}
emilmont	1:46ce1e16c870	2726	#endif
mbed_official	5:b3b3370574cf	2727	#endif
mbed_official	5:b3b3370574cf	2728	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mbed_official	4:3ff2606d5713	2729	#ifdef FLUSH_ON_NEW_SECTOR
mbed_official	4:3ff2606d5713	2730	need_sync = true;
mbed_official	4:3ff2606d5713	2731	#endif
mbed_official	5:b3b3370574cf	2732	continue;
mbed_official	5:b3b3370574cf	2733	}
emilmont	1:46ce1e16c870	2734	#if _FS_TINY
mbed_official	5:b3b3370574cf	2735	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
mbed_official	5:b3b3370574cf	2736	if (sync_window(fp->fs)) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2737	fp->fs->winsect = sect;
mbed_official	5:b3b3370574cf	2738	}
emilmont	1:46ce1e16c870	2739	#else
mbed_official	5:b3b3370574cf	2740	if (fp->dsect != sect) { /* Fill sector cache with file data */
mbed_official	5:b3b3370574cf	2741	if (fp->fptr < fp->fsize &&
mbed_official	5:b3b3370574cf	2742	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2743	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2744	}
emilmont	1:46ce1e16c870	2745	#endif
mbed_official	5:b3b3370574cf	2746	fp->dsect = sect;
mbed_official	5:b3b3370574cf	2747	}
mbed_official	5:b3b3370574cf	2748	wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
mbed_official	5:b3b3370574cf	2749	if (wcnt > btw) wcnt = btw;
emilmont	1:46ce1e16c870	2750	#if _FS_TINY
mbed_official	5:b3b3370574cf	2751	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
mbed_official	5:b3b3370574cf	2752	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2753	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mbed_official	5:b3b3370574cf	2754	fp->fs->wflag = 1;
emilmont	1:46ce1e16c870	2755	#else
mbed_official	5:b3b3370574cf	2756	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mbed_official	5:b3b3370574cf	2757	fp->flag \|= FA__DIRTY;
emilmont	1:46ce1e16c870	2758	#endif
mbed_official	5:b3b3370574cf	2759	}
mbed_official	5:b3b3370574cf	2760
mbed_official	5:b3b3370574cf	2761	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
mbed_official	5:b3b3370574cf	2762	fp->flag \|= FA__WRITTEN; /* Set file change flag */
mbed_official	5:b3b3370574cf	2763
mbed_official	5:b3b3370574cf	2764	if (need_sync) {
mbed_official	4:3ff2606d5713	2765	f_sync (fp);
mbed_official	4:3ff2606d5713	2766	}
mbed_official	5:b3b3370574cf	2767
mbed_official	5:b3b3370574cf	2768	LEAVE_FF(fp->fs, FR_OK);
emilmont	1:46ce1e16c870	2769	}
emilmont	1:46ce1e16c870	2770
emilmont	1:46ce1e16c870	2771
emilmont	1:46ce1e16c870	2772
emilmont	1:46ce1e16c870	2773
emilmont	1:46ce1e16c870	2774	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2775	/* Synchronize the File */
emilmont	1:46ce1e16c870	2776	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2777
emilmont	1:46ce1e16c870	2778	FRESULT f_sync (
mbed_official	5:b3b3370574cf	2779	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	2780	)
emilmont	1:46ce1e16c870	2781	{
mbed_official	5:b3b3370574cf	2782	FRESULT res;
mbed_official	5:b3b3370574cf	2783	DWORD tm;
mbed_official	5:b3b3370574cf	2784	BYTE *FATFS_DIR;
mbed_official	5:b3b3370574cf	2785
mbed_official	5:b3b3370574cf	2786
mbed_official	5:b3b3370574cf	2787	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	2788	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2789	if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
mbed_official	5:b3b3370574cf	2790	/* Write-back dirty buffer */
mbed_official	5:b3b3370574cf	2791	#if !_FS_TINY
mbed_official	5:b3b3370574cf	2792	if (fp->flag & FA__DIRTY) {
mbed_official	5:b3b3370574cf	2793	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	2794	LEAVE_FF(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	2795	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	2796	}
emilmont	1:46ce1e16c870	2797	#endif
mbed_official	5:b3b3370574cf	2798	/* Update the directory entry */
mbed_official	5:b3b3370574cf	2799	res = move_window(fp->fs, fp->dir_sect);
mbed_official	5:b3b3370574cf	2800	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2801	FATFS_DIR = fp->dir_ptr;
mbed_official	5:b3b3370574cf	2802	FATFS_DIR[DIR_Attr] \|= AM_ARC; /* Set archive bit */
mbed_official	5:b3b3370574cf	2803	ST_DWORD(FATFS_DIR + DIR_FileSize, fp->fsize); /* Update file size */
mbed_official	5:b3b3370574cf	2804	st_clust(FATFS_DIR, fp->sclust); /* Update start cluster */
mbed_official	5:b3b3370574cf	2805	tm = GET_FATTIME(); /* Update updated time */
mbed_official	5:b3b3370574cf	2806	ST_DWORD(FATFS_DIR + DIR_WrtTime, tm);
mbed_official	5:b3b3370574cf	2807	ST_WORD(FATFS_DIR + DIR_LstAccDate, 0);
mbed_official	5:b3b3370574cf	2808	fp->flag &= ~FA__WRITTEN;
mbed_official	5:b3b3370574cf	2809	fp->fs->wflag = 1;
mbed_official	5:b3b3370574cf	2810	res = sync_fs(fp->fs);
mbed_official	5:b3b3370574cf	2811	}
mbed_official	5:b3b3370574cf	2812	}
mbed_official	5:b3b3370574cf	2813	}
mbed_official	5:b3b3370574cf	2814
mbed_official	5:b3b3370574cf	2815	LEAVE_FF(fp->fs, res);
emilmont	1:46ce1e16c870	2816	}
emilmont	1:46ce1e16c870	2817
emilmont	1:46ce1e16c870	2818	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	2819
emilmont	1:46ce1e16c870	2820
emilmont	1:46ce1e16c870	2821
emilmont	1:46ce1e16c870	2822
emilmont	1:46ce1e16c870	2823	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2824	/* Close File */
emilmont	1:46ce1e16c870	2825	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2826
emilmont	1:46ce1e16c870	2827	FRESULT f_close (
mbed_official	5:b3b3370574cf	2828	FIL fp / Pointer to the file object to be closed */
emilmont	1:46ce1e16c870	2829	)
emilmont	1:46ce1e16c870	2830	{
mbed_official	5:b3b3370574cf	2831	FRESULT res;
mbed_official	5:b3b3370574cf	2832
mbed_official	5:b3b3370574cf	2833
mbed_official	5:b3b3370574cf	2834	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	2835	res = f_sync(fp); /* Flush cached data */
mbed_official	5:b3b3370574cf	2836	if (res == FR_OK)
mbed_official	5:b3b3370574cf	2837	#endif
mbed_official	5:b3b3370574cf	2838	{
mbed_official	5:b3b3370574cf	2839	res = validate(fp); /* Lock volume */
mbed_official	5:b3b3370574cf	2840	if (res == FR_OK) {
emilmont	1:46ce1e16c870	2841	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	2842	FATFS *fs = fp->fs;
emilmont	1:46ce1e16c870	2843	#endif
emilmont	1:46ce1e16c870	2844	#if _FS_LOCK
mbed_official	5:b3b3370574cf	2845	res = dec_lock(fp->lockid); /* Decrement file open counter */
mbed_official	5:b3b3370574cf	2846	if (res == FR_OK)
mbed_official	5:b3b3370574cf	2847	#endif
mbed_official	5:b3b3370574cf	2848	fp->fs = 0; /* Invalidate file object */
emilmont	1:46ce1e16c870	2849	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	2850	unlock_fs(fs, FR_OK); /* Unlock volume */
emilmont	1:46ce1e16c870	2851	#endif
mbed_official	5:b3b3370574cf	2852	}
mbed_official	5:b3b3370574cf	2853	}
mbed_official	5:b3b3370574cf	2854	return res;
emilmont	1:46ce1e16c870	2855	}
emilmont	1:46ce1e16c870	2856
emilmont	1:46ce1e16c870	2857
emilmont	1:46ce1e16c870	2858
emilmont	1:46ce1e16c870	2859
emilmont	1:46ce1e16c870	2860	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	2861	/* Change Current Directory or Current Drive, Get Current Directory */
emilmont	1:46ce1e16c870	2862	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2863
emilmont	1:46ce1e16c870	2864	#if _FS_RPATH >= 1
mbed_official	5:b3b3370574cf	2865	#if _VOLUMES >= 2
emilmont	1:46ce1e16c870	2866	FRESULT f_chdrive (
mbed_official	5:b3b3370574cf	2867	const TCHAR* path /* Drive number */
emilmont	1:46ce1e16c870	2868	)
emilmont	1:46ce1e16c870	2869	{
mbed_official	5:b3b3370574cf	2870	int vol;
mbed_official	5:b3b3370574cf	2871
mbed_official	5:b3b3370574cf	2872
mbed_official	5:b3b3370574cf	2873	vol = get_ldnumber(&path);
mbed_official	5:b3b3370574cf	2874	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	2875
mbed_official	5:b3b3370574cf	2876	CurrVol = (BYTE)vol;
mbed_official	5:b3b3370574cf	2877
mbed_official	5:b3b3370574cf	2878	return FR_OK;
emilmont	1:46ce1e16c870	2879	}
mbed_official	5:b3b3370574cf	2880	#endif
emilmont	1:46ce1e16c870	2881
emilmont	1:46ce1e16c870	2882
emilmont	1:46ce1e16c870	2883	FRESULT f_chdir (
mbed_official	5:b3b3370574cf	2884	const TCHAR* path /* Pointer to the directory path */
emilmont	1:46ce1e16c870	2885	)
emilmont	1:46ce1e16c870	2886	{
mbed_official	5:b3b3370574cf	2887	FRESULT res;
mbed_official	5:b3b3370574cf	2888	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	2889	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	2890
mbed_official	5:b3b3370574cf	2891
mbed_official	5:b3b3370574cf	2892	/* Get logical drive number */
mbed_official	5:b3b3370574cf	2893	res = find_volume(&dj.fs, &path, 0);
mbed_official	5:b3b3370574cf	2894	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2895	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	2896	res = follow_path(&dj, path); /* Follow the path */
mbed_official	5:b3b3370574cf	2897	FREE_BUF();
mbed_official	5:b3b3370574cf	2898	if (res == FR_OK) { /* Follow completed */
mbed_official	5:b3b3370574cf	2899	if (!dj.FATFS_DIR) {
mbed_official	5:b3b3370574cf	2900	dj.fs->cdir = dj.sclust; /* Start directory itself */
mbed_official	5:b3b3370574cf	2901	} else {
mbed_official	5:b3b3370574cf	2902	if (dj.FATFS_DIR[DIR_Attr] & AM_DIR) /* Reached to the directory */
mbed_official	5:b3b3370574cf	2903	dj.fs->cdir = ld_clust(dj.fs, dj.FATFS_DIR);
mbed_official	5:b3b3370574cf	2904	else
mbed_official	5:b3b3370574cf	2905	res = FR_NO_PATH; /* Reached but a file */
mbed_official	5:b3b3370574cf	2906	}
mbed_official	5:b3b3370574cf	2907	}
mbed_official	5:b3b3370574cf	2908	if (res == FR_NO_FILE) res = FR_NO_PATH;
mbed_official	5:b3b3370574cf	2909	}
mbed_official	5:b3b3370574cf	2910
mbed_official	5:b3b3370574cf	2911	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	2912	}
emilmont	1:46ce1e16c870	2913
emilmont	1:46ce1e16c870	2914
emilmont	1:46ce1e16c870	2915	#if _FS_RPATH >= 2
emilmont	1:46ce1e16c870	2916	FRESULT f_getcwd (
mbed_official	5:b3b3370574cf	2917	TCHAR* buff, /* Pointer to the directory path */
mbed_official	5:b3b3370574cf	2918	UINT len /* Size of path */
emilmont	1:46ce1e16c870	2919	)
emilmont	1:46ce1e16c870	2920	{
mbed_official	5:b3b3370574cf	2921	FRESULT res;
mbed_official	5:b3b3370574cf	2922	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	2923	UINT i, n;
mbed_official	5:b3b3370574cf	2924	DWORD ccl;
mbed_official	5:b3b3370574cf	2925	TCHAR *tp;
mbed_official	5:b3b3370574cf	2926	FILINFO fno;
mbed_official	5:b3b3370574cf	2927	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	2928
mbed_official	5:b3b3370574cf	2929
mbed_official	5:b3b3370574cf	2930	*buff = 0;
mbed_official	5:b3b3370574cf	2931	/* Get logical drive number */
mbed_official	5:b3b3370574cf	2932	res = find_volume(&dj.fs, (const TCHAR*)&buff, 0); / Get current volume */
mbed_official	5:b3b3370574cf	2933	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2934	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	2935	i = len; /* Bottom of buffer (directory stack base) */
mbed_official	5:b3b3370574cf	2936	dj.sclust = dj.fs->cdir; /* Start to follow upper directory from current directory */
mbed_official	5:b3b3370574cf	2937	while ((ccl = dj.sclust) != 0) { /* Repeat while current directory is a sub-directory */
mbed_official	5:b3b3370574cf	2938	res = dir_sdi(&dj, 1); /* Get parent directory */
mbed_official	5:b3b3370574cf	2939	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	2940	res = dir_read(&dj, 0);
mbed_official	5:b3b3370574cf	2941	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	2942	dj.sclust = ld_clust(dj.fs, dj.FATFS_DIR); /* Goto parent directory */
mbed_official	5:b3b3370574cf	2943	res = dir_sdi(&dj, 0);
mbed_official	5:b3b3370574cf	2944	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	2945	do { /* Find the entry links to the child directory */
mbed_official	5:b3b3370574cf	2946	res = dir_read(&dj, 0);
mbed_official	5:b3b3370574cf	2947	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	2948	if (ccl == ld_clust(dj.fs, dj.FATFS_DIR)) break; /* Found the entry */
mbed_official	5:b3b3370574cf	2949	res = dir_next(&dj, 0);
mbed_official	5:b3b3370574cf	2950	} while (res == FR_OK);
mbed_official	5:b3b3370574cf	2951	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
mbed_official	5:b3b3370574cf	2952	if (res != FR_OK) break;
emilmont	1:46ce1e16c870	2953	#if _USE_LFN
mbed_official	5:b3b3370574cf	2954	fno.lfname = buff;
mbed_official	5:b3b3370574cf	2955	fno.lfsize = i;
mbed_official	5:b3b3370574cf	2956	#endif
mbed_official	5:b3b3370574cf	2957	get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */
mbed_official	5:b3b3370574cf	2958	tp = fno.fname;
mbed_official	5:b3b3370574cf	2959	#if _USE_LFN
mbed_official	5:b3b3370574cf	2960	if (*buff) tp = buff;
emilmont	1:46ce1e16c870	2961	#endif
mbed_official	5:b3b3370574cf	2962	for (n = 0; tp[n]; n++) ;
mbed_official	5:b3b3370574cf	2963	if (i < n + 3) {
mbed_official	5:b3b3370574cf	2964	res = FR_NOT_ENOUGH_CORE; break;
mbed_official	5:b3b3370574cf	2965	}
mbed_official	5:b3b3370574cf	2966	while (n) buff[--i] = tp[--n];
mbed_official	5:b3b3370574cf	2967	buff[--i] = '/';
mbed_official	5:b3b3370574cf	2968	}
mbed_official	5:b3b3370574cf	2969	tp = buff;
mbed_official	5:b3b3370574cf	2970	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	2971	#if _VOLUMES >= 2
mbed_official	5:b3b3370574cf	2972	tp++ = '0' + CurrVol; / Put drive number */
mbed_official	5:b3b3370574cf	2973	*tp++ = ':';
mbed_official	5:b3b3370574cf	2974	#endif
mbed_official	5:b3b3370574cf	2975	if (i == len) { /* Root-directory */
mbed_official	5:b3b3370574cf	2976	*tp++ = '/';
mbed_official	5:b3b3370574cf	2977	} else { /* Sub-directroy */
mbed_official	5:b3b3370574cf	2978	do /* Add stacked path str */
mbed_official	5:b3b3370574cf	2979	*tp++ = buff[i++];
mbed_official	5:b3b3370574cf	2980	while (i < len);
mbed_official	5:b3b3370574cf	2981	}
mbed_official	5:b3b3370574cf	2982	}
mbed_official	5:b3b3370574cf	2983	*tp = 0;
mbed_official	5:b3b3370574cf	2984	FREE_BUF();
mbed_official	5:b3b3370574cf	2985	}
mbed_official	5:b3b3370574cf	2986
mbed_official	5:b3b3370574cf	2987	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	2988	}
emilmont	1:46ce1e16c870	2989	#endif /* _FS_RPATH >= 2 */
emilmont	1:46ce1e16c870	2990	#endif /* _FS_RPATH >= 1 */
emilmont	1:46ce1e16c870	2991
emilmont	1:46ce1e16c870	2992
emilmont	1:46ce1e16c870	2993
emilmont	1:46ce1e16c870	2994	#if _FS_MINIMIZE <= 2
emilmont	1:46ce1e16c870	2995	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2996	/* Seek File R/W Pointer */
emilmont	1:46ce1e16c870	2997	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	2998
emilmont	1:46ce1e16c870	2999	FRESULT f_lseek (
mbed_official	5:b3b3370574cf	3000	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	3001	DWORD ofs /* File pointer from top of file */
emilmont	1:46ce1e16c870	3002	)
emilmont	1:46ce1e16c870	3003	{
mbed_official	5:b3b3370574cf	3004	FRESULT res;
mbed_official	5:b3b3370574cf	3005	DWORD clst, bcs, nsect, ifptr;
mbed_official	5:b3b3370574cf	3006	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	3007	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
mbed_official	5:b3b3370574cf	3008	#endif
mbed_official	5:b3b3370574cf	3009
mbed_official	5:b3b3370574cf	3010
mbed_official	5:b3b3370574cf	3011	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	3012	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	3013	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	3014	LEAVE_FF(fp->fs, (FRESULT)fp->err);
emilmont	1:46ce1e16c870	3015
emilmont	1:46ce1e16c870	3016	#if _USE_FASTSEEK
mbed_official	5:b3b3370574cf	3017	if (fp->cltbl) { /* Fast seek */
mbed_official	5:b3b3370574cf	3018	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
mbed_official	5:b3b3370574cf	3019	tbl = fp->cltbl;
mbed_official	5:b3b3370574cf	3020	tlen = tbl++; ulen = 2; / Given table size and required table size */
mbed_official	5:b3b3370574cf	3021	cl = fp->sclust; /* Top of the chain */
mbed_official	5:b3b3370574cf	3022	if (cl) {
mbed_official	5:b3b3370574cf	3023	do {
mbed_official	5:b3b3370574cf	3024	/* Get a fragment */
mbed_official	5:b3b3370574cf	3025	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
mbed_official	5:b3b3370574cf	3026	do {
mbed_official	5:b3b3370574cf	3027	pcl = cl; ncl++;
mbed_official	5:b3b3370574cf	3028	cl = get_fat(fp->fs, cl);
mbed_official	5:b3b3370574cf	3029	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3030	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3031	} while (cl == pcl + 1);
mbed_official	5:b3b3370574cf	3032	if (ulen <= tlen) { /* Store the length and top of the fragment */
mbed_official	5:b3b3370574cf	3033	tbl++ = ncl; tbl++ = tcl;
mbed_official	5:b3b3370574cf	3034	}
mbed_official	5:b3b3370574cf	3035	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
mbed_official	5:b3b3370574cf	3036	}
mbed_official	5:b3b3370574cf	3037	fp->cltbl = ulen; / Number of items used */
mbed_official	5:b3b3370574cf	3038	if (ulen <= tlen)
mbed_official	5:b3b3370574cf	3039	tbl = 0; / Terminate table */
mbed_official	5:b3b3370574cf	3040	else
mbed_official	5:b3b3370574cf	3041	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
mbed_official	5:b3b3370574cf	3042
mbed_official	5:b3b3370574cf	3043	} else { /* Fast seek */
mbed_official	5:b3b3370574cf	3044	if (ofs > fp->fsize) /* Clip offset at the file size */
mbed_official	5:b3b3370574cf	3045	ofs = fp->fsize;
mbed_official	5:b3b3370574cf	3046	fp->fptr = ofs; /* Set file pointer */
mbed_official	5:b3b3370574cf	3047	if (ofs) {
mbed_official	5:b3b3370574cf	3048	fp->clust = clmt_clust(fp, ofs - 1);
mbed_official	5:b3b3370574cf	3049	dsc = clust2sect(fp->fs, fp->clust);
mbed_official	5:b3b3370574cf	3050	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3051	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
mbed_official	5:b3b3370574cf	3052	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
emilmont	1:46ce1e16c870	3053	#if !_FS_TINY
emilmont	1:46ce1e16c870	3054	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3055	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mbed_official	5:b3b3370574cf	3056	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	3057	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3058	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	3059	}
emilmont	1:46ce1e16c870	3060	#endif
mbed_official	5:b3b3370574cf	3061	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
mbed_official	5:b3b3370574cf	3062	ABORT(fp->fs, FR_DISK_ERR);
emilmont	1:46ce1e16c870	3063	#endif
mbed_official	5:b3b3370574cf	3064	fp->dsect = dsc;
mbed_official	5:b3b3370574cf	3065	}
mbed_official	5:b3b3370574cf	3066	}
mbed_official	5:b3b3370574cf	3067	}
mbed_official	5:b3b3370574cf	3068	} else
emilmont	1:46ce1e16c870	3069	#endif
emilmont	1:46ce1e16c870	3070
mbed_official	5:b3b3370574cf	3071	/* Normal Seek */
mbed_official	5:b3b3370574cf	3072	{
mbed_official	5:b3b3370574cf	3073	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
emilmont	1:46ce1e16c870	3074	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3075	&& !(fp->flag & FA_WRITE)
emilmont	1:46ce1e16c870	3076	#endif
mbed_official	5:b3b3370574cf	3077	) ofs = fp->fsize;
mbed_official	5:b3b3370574cf	3078
mbed_official	5:b3b3370574cf	3079	ifptr = fp->fptr;
mbed_official	5:b3b3370574cf	3080	fp->fptr = nsect = 0;
mbed_official	5:b3b3370574cf	3081	if (ofs) {
mbed_official	5:b3b3370574cf	3082	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
mbed_official	5:b3b3370574cf	3083	if (ifptr > 0 &&
mbed_official	5:b3b3370574cf	3084	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
mbed_official	5:b3b3370574cf	3085	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
mbed_official	5:b3b3370574cf	3086	ofs -= fp->fptr;
mbed_official	5:b3b3370574cf	3087	clst = fp->clust;
mbed_official	5:b3b3370574cf	3088	} else { /* When seek to back cluster, */
mbed_official	5:b3b3370574cf	3089	clst = fp->sclust; /* start from the first cluster */
emilmont	1:46ce1e16c870	3090	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3091	if (clst == 0) { /* If no cluster chain, create a new chain */
mbed_official	5:b3b3370574cf	3092	clst = create_chain(fp->fs, 0);
mbed_official	5:b3b3370574cf	3093	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3094	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3095	fp->sclust = clst;
mbed_official	5:b3b3370574cf	3096	}
emilmont	1:46ce1e16c870	3097	#endif
mbed_official	5:b3b3370574cf	3098	fp->clust = clst;
mbed_official	5:b3b3370574cf	3099	}
mbed_official	5:b3b3370574cf	3100	if (clst != 0) {
mbed_official	5:b3b3370574cf	3101	while (ofs > bcs) { /* Cluster following loop */
emilmont	1:46ce1e16c870	3102	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3103	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
mbed_official	5:b3b3370574cf	3104	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
mbed_official	5:b3b3370574cf	3105	if (clst == 0) { /* When disk gets full, clip file size */
mbed_official	5:b3b3370574cf	3106	ofs = bcs; break;
mbed_official	5:b3b3370574cf	3107	}
mbed_official	5:b3b3370574cf	3108	} else
emilmont	1:46ce1e16c870	3109	#endif
mbed_official	5:b3b3370574cf	3110	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
mbed_official	5:b3b3370574cf	3111	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3112	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3113	fp->clust = clst;
mbed_official	5:b3b3370574cf	3114	fp->fptr += bcs;
mbed_official	5:b3b3370574cf	3115	ofs -= bcs;
mbed_official	5:b3b3370574cf	3116	}
mbed_official	5:b3b3370574cf	3117	fp->fptr += ofs;
mbed_official	5:b3b3370574cf	3118	if (ofs % SS(fp->fs)) {
mbed_official	5:b3b3370574cf	3119	nsect = clust2sect(fp->fs, clst); /* Current sector */
mbed_official	5:b3b3370574cf	3120	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	3121	nsect += ofs / SS(fp->fs);
mbed_official	5:b3b3370574cf	3122	}
mbed_official	5:b3b3370574cf	3123	}
mbed_official	5:b3b3370574cf	3124	}
mbed_official	5:b3b3370574cf	3125	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
emilmont	1:46ce1e16c870	3126	#if !_FS_TINY
emilmont	1:46ce1e16c870	3127	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3128	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mbed_official	5:b3b3370574cf	3129	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	3130	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	3131	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	3132	}
emilmont	1:46ce1e16c870	3133	#endif
mbed_official	5:b3b3370574cf	3134	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
mbed_official	5:b3b3370574cf	3135	ABORT(fp->fs, FR_DISK_ERR);
emilmont	1:46ce1e16c870	3136	#endif
mbed_official	5:b3b3370574cf	3137	fp->dsect = nsect;
mbed_official	5:b3b3370574cf	3138	}
emilmont	1:46ce1e16c870	3139	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3140	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
mbed_official	5:b3b3370574cf	3141	fp->fsize = fp->fptr;
mbed_official	5:b3b3370574cf	3142	fp->flag \|= FA__WRITTEN;
mbed_official	5:b3b3370574cf	3143	}
emilmont	1:46ce1e16c870	3144	#endif
mbed_official	5:b3b3370574cf	3145	}
mbed_official	5:b3b3370574cf	3146
mbed_official	5:b3b3370574cf	3147	LEAVE_FF(fp->fs, res);
emilmont	1:46ce1e16c870	3148	}
emilmont	1:46ce1e16c870	3149
emilmont	1:46ce1e16c870	3150
emilmont	1:46ce1e16c870	3151
emilmont	1:46ce1e16c870	3152	#if _FS_MINIMIZE <= 1
emilmont	1:46ce1e16c870	3153	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3154	/* Create a Directory Object */
emilmont	1:46ce1e16c870	3155	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3156
emilmont	1:46ce1e16c870	3157	FRESULT f_opendir (
mbed_official	5:b3b3370574cf	3158	FATFS_DIR* dp, /* Pointer to directory object to create */
mbed_official	5:b3b3370574cf	3159	const TCHAR* path /* Pointer to the directory path */
emilmont	1:46ce1e16c870	3160	)
emilmont	1:46ce1e16c870	3161	{
mbed_official	5:b3b3370574cf	3162	FRESULT res;
mbed_official	5:b3b3370574cf	3163	FATFS* fs;
mbed_official	5:b3b3370574cf	3164	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3165
mbed_official	5:b3b3370574cf	3166
mbed_official	5:b3b3370574cf	3167	if (!dp) return FR_INVALID_OBJECT;
mbed_official	5:b3b3370574cf	3168
mbed_official	5:b3b3370574cf	3169	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3170	res = find_volume(&fs, &path, 0);
mbed_official	5:b3b3370574cf	3171	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3172	dp->fs = fs;
mbed_official	5:b3b3370574cf	3173	INIT_BUF(*dp);
mbed_official	5:b3b3370574cf	3174	res = follow_path(dp, path); /* Follow the path to the directory */
mbed_official	5:b3b3370574cf	3175	FREE_BUF();
mbed_official	5:b3b3370574cf	3176	if (res == FR_OK) { /* Follow completed */
mbed_official	5:b3b3370574cf	3177	if (dp->FATFS_DIR) { /* It is not the origin directory itself */
mbed_official	5:b3b3370574cf	3178	if (dp->FATFS_DIR[DIR_Attr] & AM_DIR) /* The object is a sub directory */
mbed_official	5:b3b3370574cf	3179	dp->sclust = ld_clust(fs, dp->FATFS_DIR);
mbed_official	5:b3b3370574cf	3180	else /* The object is a file */
mbed_official	5:b3b3370574cf	3181	res = FR_NO_PATH;
mbed_official	5:b3b3370574cf	3182	}
mbed_official	5:b3b3370574cf	3183	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3184	dp->id = fs->id;
mbed_official	5:b3b3370574cf	3185	res = dir_sdi(dp, 0); /* Rewind directory */
mbed_official	5:b3b3370574cf	3186	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3187	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3188	if (dp->sclust) {
mbed_official	5:b3b3370574cf	3189	dp->lockid = inc_lock(dp, 0); /* Lock the sub directory */
mbed_official	5:b3b3370574cf	3190	if (!dp->lockid)
mbed_official	5:b3b3370574cf	3191	res = FR_TOO_MANY_OPEN_FILES;
mbed_official	5:b3b3370574cf	3192	} else {
mbed_official	5:b3b3370574cf	3193	dp->lockid = 0; /* Root directory need not to be locked */
mbed_official	5:b3b3370574cf	3194	}
mbed_official	5:b3b3370574cf	3195	}
mbed_official	5:b3b3370574cf	3196	#endif
mbed_official	5:b3b3370574cf	3197	}
mbed_official	5:b3b3370574cf	3198	}
mbed_official	5:b3b3370574cf	3199	if (res == FR_NO_FILE) res = FR_NO_PATH;
mbed_official	5:b3b3370574cf	3200	}
mbed_official	5:b3b3370574cf	3201	if (res != FR_OK) dp->fs = 0; /* Invalidate the directory object if function faild */
mbed_official	5:b3b3370574cf	3202
mbed_official	5:b3b3370574cf	3203	LEAVE_FF(fs, res);
mbed_official	5:b3b3370574cf	3204	}
mbed_official	5:b3b3370574cf	3205
mbed_official	5:b3b3370574cf	3206
mbed_official	5:b3b3370574cf	3207
mbed_official	5:b3b3370574cf	3208
mbed_official	5:b3b3370574cf	3209	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3210	/* Close Directory */
mbed_official	5:b3b3370574cf	3211	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3212
mbed_official	5:b3b3370574cf	3213	FRESULT f_closedir (
mbed_official	5:b3b3370574cf	3214	FATFS_DIR dp / Pointer to the directory object to be closed */
mbed_official	5:b3b3370574cf	3215	)
mbed_official	5:b3b3370574cf	3216	{
mbed_official	5:b3b3370574cf	3217	FRESULT res;
mbed_official	5:b3b3370574cf	3218
mbed_official	5:b3b3370574cf	3219
mbed_official	5:b3b3370574cf	3220	res = validate(dp);
mbed_official	5:b3b3370574cf	3221	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3222	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	3223	FATFS *fs = dp->fs;
mbed_official	5:b3b3370574cf	3224	#endif
mbed_official	5:b3b3370574cf	3225	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3226	if (dp->lockid) /* Decrement sub-directory open counter */
mbed_official	5:b3b3370574cf	3227	res = dec_lock(dp->lockid);
mbed_official	5:b3b3370574cf	3228	if (res == FR_OK)
mbed_official	5:b3b3370574cf	3229	#endif
mbed_official	5:b3b3370574cf	3230	dp->fs = 0; /* Invalidate directory object */
mbed_official	5:b3b3370574cf	3231	#if _FS_REENTRANT
mbed_official	5:b3b3370574cf	3232	unlock_fs(fs, FR_OK); /* Unlock volume */
mbed_official	5:b3b3370574cf	3233	#endif
mbed_official	5:b3b3370574cf	3234	}
mbed_official	5:b3b3370574cf	3235	return res;
emilmont	1:46ce1e16c870	3236	}
emilmont	1:46ce1e16c870	3237
emilmont	1:46ce1e16c870	3238
emilmont	1:46ce1e16c870	3239
emilmont	1:46ce1e16c870	3240
emilmont	1:46ce1e16c870	3241	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3242	/* Read Directory Entries in Sequence */
emilmont	1:46ce1e16c870	3243	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3244
emilmont	1:46ce1e16c870	3245	FRESULT f_readdir (
mbed_official	5:b3b3370574cf	3246	FATFS_DIR* dp, /* Pointer to the open directory object */
mbed_official	5:b3b3370574cf	3247	FILINFO* fno /* Pointer to file information to return */
emilmont	1:46ce1e16c870	3248	)
emilmont	1:46ce1e16c870	3249	{
mbed_official	5:b3b3370574cf	3250	FRESULT res;
mbed_official	5:b3b3370574cf	3251	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3252
mbed_official	5:b3b3370574cf	3253
mbed_official	5:b3b3370574cf	3254	res = validate(dp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	3255	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3256	if (!fno) {
mbed_official	5:b3b3370574cf	3257	res = dir_sdi(dp, 0); /* Rewind the directory object */
mbed_official	5:b3b3370574cf	3258	} else {
mbed_official	5:b3b3370574cf	3259	INIT_BUF(*dp);
mbed_official	5:b3b3370574cf	3260	res = dir_read(dp, 0); /* Read an item */
mbed_official	5:b3b3370574cf	3261	if (res == FR_NO_FILE) { /* Reached end of directory */
mbed_official	5:b3b3370574cf	3262	dp->sect = 0;
mbed_official	5:b3b3370574cf	3263	res = FR_OK;
mbed_official	5:b3b3370574cf	3264	}
mbed_official	5:b3b3370574cf	3265	if (res == FR_OK) { /* A valid entry is found */
mbed_official	5:b3b3370574cf	3266	get_fileinfo(dp, fno); /* Get the object information */
mbed_official	5:b3b3370574cf	3267	res = dir_next(dp, 0); /* Increment index for next */
mbed_official	5:b3b3370574cf	3268	if (res == FR_NO_FILE) {
mbed_official	5:b3b3370574cf	3269	dp->sect = 0;
mbed_official	5:b3b3370574cf	3270	res = FR_OK;
mbed_official	5:b3b3370574cf	3271	}
mbed_official	5:b3b3370574cf	3272	}
mbed_official	5:b3b3370574cf	3273	FREE_BUF();
mbed_official	5:b3b3370574cf	3274	}
mbed_official	5:b3b3370574cf	3275	}
mbed_official	5:b3b3370574cf	3276
mbed_official	5:b3b3370574cf	3277	LEAVE_FF(dp->fs, res);
emilmont	1:46ce1e16c870	3278	}
emilmont	1:46ce1e16c870	3279
emilmont	1:46ce1e16c870	3280
emilmont	1:46ce1e16c870	3281
mbed_official	5:b3b3370574cf	3282	#if _USE_FIND
mbed_official	5:b3b3370574cf	3283	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3284	/* Find next file */
mbed_official	5:b3b3370574cf	3285	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3286
mbed_official	5:b3b3370574cf	3287	FRESULT f_findnext (
mbed_official	5:b3b3370574cf	3288	FATFS_DIR* dp, /* Pointer to the open directory object */
mbed_official	5:b3b3370574cf	3289	FILINFO* fno /* Pointer to the file information structure */
mbed_official	5:b3b3370574cf	3290	)
mbed_official	5:b3b3370574cf	3291	{
mbed_official	5:b3b3370574cf	3292	FRESULT res;
mbed_official	5:b3b3370574cf	3293
mbed_official	5:b3b3370574cf	3294
mbed_official	5:b3b3370574cf	3295	for (;;) {
mbed_official	5:b3b3370574cf	3296	res = f_readdir(dp, fno); /* Get a directory item */
mbed_official	5:b3b3370574cf	3297	if (res != FR_OK \|\| !fno \|\| !fno->fname[0]) break; /* Terminate if any error or end of directory */
mbed_official	5:b3b3370574cf	3298	#if _USE_LFN
mbed_official	5:b3b3370574cf	3299	if (fno->lfname && pattern_matching(dp->pat, fno->lfname, 0, 0)) break; /* Test for LFN if exist */
mbed_official	5:b3b3370574cf	3300	#endif
mbed_official	5:b3b3370574cf	3301	if (pattern_matching(dp->pat, fno->fname, 0, 0)) break; /* Test for SFN */
mbed_official	5:b3b3370574cf	3302	}
mbed_official	5:b3b3370574cf	3303	return res;
mbed_official	5:b3b3370574cf	3304
mbed_official	5:b3b3370574cf	3305	}
mbed_official	5:b3b3370574cf	3306
mbed_official	5:b3b3370574cf	3307
mbed_official	5:b3b3370574cf	3308
mbed_official	5:b3b3370574cf	3309	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3310	/* Find first file */
mbed_official	5:b3b3370574cf	3311	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3312
mbed_official	5:b3b3370574cf	3313	FRESULT f_findfirst (
mbed_official	5:b3b3370574cf	3314	FATFS_DIR* dp, /* Pointer to the blank directory object */
mbed_official	5:b3b3370574cf	3315	FILINFO* fno, /* Pointer to the file information structure */
mbed_official	5:b3b3370574cf	3316	const TCHAR* path, /* Pointer to the directory to open */
mbed_official	5:b3b3370574cf	3317	const TCHAR* pattern /* Pointer to the matching pattern */
mbed_official	5:b3b3370574cf	3318	)
mbed_official	5:b3b3370574cf	3319	{
mbed_official	5:b3b3370574cf	3320	FRESULT res;
mbed_official	5:b3b3370574cf	3321
mbed_official	5:b3b3370574cf	3322
mbed_official	5:b3b3370574cf	3323	dp->pat = pattern; /* Save pointer to pattern string */
mbed_official	5:b3b3370574cf	3324	res = f_opendir(dp, path); /* Open the target directory */
mbed_official	5:b3b3370574cf	3325	if (res == FR_OK)
mbed_official	5:b3b3370574cf	3326	res = f_findnext(dp, fno); /* Find the first item */
mbed_official	5:b3b3370574cf	3327	return res;
mbed_official	5:b3b3370574cf	3328	}
mbed_official	5:b3b3370574cf	3329
mbed_official	5:b3b3370574cf	3330	#endif /* _USE_FIND */
mbed_official	5:b3b3370574cf	3331
mbed_official	5:b3b3370574cf	3332
mbed_official	5:b3b3370574cf	3333
emilmont	1:46ce1e16c870	3334	#if _FS_MINIMIZE == 0
emilmont	1:46ce1e16c870	3335	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3336	/* Get File Status */
emilmont	1:46ce1e16c870	3337	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3338
emilmont	1:46ce1e16c870	3339	FRESULT f_stat (
mbed_official	5:b3b3370574cf	3340	const TCHAR* path, /* Pointer to the file path */
mbed_official	5:b3b3370574cf	3341	FILINFO* fno /* Pointer to file information to return */
emilmont	1:46ce1e16c870	3342	)
emilmont	1:46ce1e16c870	3343	{
mbed_official	5:b3b3370574cf	3344	FRESULT res;
mbed_official	5:b3b3370574cf	3345	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3346	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3347
mbed_official	5:b3b3370574cf	3348
mbed_official	5:b3b3370574cf	3349	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3350	res = find_volume(&dj.fs, &path, 0);
mbed_official	5:b3b3370574cf	3351	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3352	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3353	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3354	if (res == FR_OK) { /* Follow completed */
mbed_official	5:b3b3370574cf	3355	if (dj.FATFS_DIR) { /* Found an object */
mbed_official	5:b3b3370574cf	3356	if (fno) get_fileinfo(&dj, fno);
mbed_official	5:b3b3370574cf	3357	} else { /* It is root directory */
mbed_official	5:b3b3370574cf	3358	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3359	}
mbed_official	5:b3b3370574cf	3360	}
mbed_official	5:b3b3370574cf	3361	FREE_BUF();
mbed_official	5:b3b3370574cf	3362	}
mbed_official	5:b3b3370574cf	3363
mbed_official	5:b3b3370574cf	3364	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3365	}
emilmont	1:46ce1e16c870	3366
emilmont	1:46ce1e16c870	3367
emilmont	1:46ce1e16c870	3368
emilmont	1:46ce1e16c870	3369	#if !_FS_READONLY
emilmont	1:46ce1e16c870	3370	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3371	/* Get Number of Free Clusters */
emilmont	1:46ce1e16c870	3372	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3373
emilmont	1:46ce1e16c870	3374	FRESULT f_getfree (
mbed_official	5:b3b3370574cf	3375	const TCHAR* path, /* Path name of the logical drive number */
mbed_official	5:b3b3370574cf	3376	DWORD* nclst, /* Pointer to a variable to return number of free clusters */
mbed_official	5:b3b3370574cf	3377	FATFS** fatfs /* Pointer to return pointer to corresponding file system object */
emilmont	1:46ce1e16c870	3378	)
emilmont	1:46ce1e16c870	3379	{
mbed_official	5:b3b3370574cf	3380	FRESULT res;
mbed_official	5:b3b3370574cf	3381	FATFS *fs;
mbed_official	5:b3b3370574cf	3382	DWORD n, clst, sect, stat;
mbed_official	5:b3b3370574cf	3383	UINT i;
mbed_official	5:b3b3370574cf	3384	BYTE fat, *p;
mbed_official	5:b3b3370574cf	3385
mbed_official	5:b3b3370574cf	3386
mbed_official	5:b3b3370574cf	3387	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3388	res = find_volume(fatfs, &path, 0);
mbed_official	5:b3b3370574cf	3389	fs = *fatfs;
mbed_official	5:b3b3370574cf	3390	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3391	/* If free_clust is valid, return it without full cluster scan */
mbed_official	5:b3b3370574cf	3392	if (fs->free_clust <= fs->n_fatent - 2) {
mbed_official	5:b3b3370574cf	3393	*nclst = fs->free_clust;
mbed_official	5:b3b3370574cf	3394	} else {
mbed_official	5:b3b3370574cf	3395	/* Get number of free clusters */
mbed_official	5:b3b3370574cf	3396	fat = fs->fs_type;
mbed_official	5:b3b3370574cf	3397	n = 0;
mbed_official	5:b3b3370574cf	3398	if (fat == FS_FAT12) {
mbed_official	5:b3b3370574cf	3399	clst = 2;
mbed_official	5:b3b3370574cf	3400	do {
mbed_official	5:b3b3370574cf	3401	stat = get_fat(fs, clst);
mbed_official	5:b3b3370574cf	3402	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
mbed_official	5:b3b3370574cf	3403	if (stat == 1) { res = FR_INT_ERR; break; }
mbed_official	5:b3b3370574cf	3404	if (stat == 0) n++;
mbed_official	5:b3b3370574cf	3405	} while (++clst < fs->n_fatent);
mbed_official	5:b3b3370574cf	3406	} else {
mbed_official	5:b3b3370574cf	3407	clst = fs->n_fatent;
mbed_official	5:b3b3370574cf	3408	sect = fs->fatbase;
mbed_official	5:b3b3370574cf	3409	i = 0; p = 0;
mbed_official	5:b3b3370574cf	3410	do {
mbed_official	5:b3b3370574cf	3411	if (!i) {
mbed_official	5:b3b3370574cf	3412	res = move_window(fs, sect++);
mbed_official	5:b3b3370574cf	3413	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	3414	p = fs->win;
mbed_official	5:b3b3370574cf	3415	i = SS(fs);
mbed_official	5:b3b3370574cf	3416	}
mbed_official	5:b3b3370574cf	3417	if (fat == FS_FAT16) {
mbed_official	5:b3b3370574cf	3418	if (LD_WORD(p) == 0) n++;
mbed_official	5:b3b3370574cf	3419	p += 2; i -= 2;
mbed_official	5:b3b3370574cf	3420	} else {
mbed_official	5:b3b3370574cf	3421	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
mbed_official	5:b3b3370574cf	3422	p += 4; i -= 4;
mbed_official	5:b3b3370574cf	3423	}
mbed_official	5:b3b3370574cf	3424	} while (--clst);
mbed_official	5:b3b3370574cf	3425	}
mbed_official	5:b3b3370574cf	3426	fs->free_clust = n;
mbed_official	5:b3b3370574cf	3427	fs->fsi_flag \|= 1;
mbed_official	5:b3b3370574cf	3428	*nclst = n;
mbed_official	5:b3b3370574cf	3429	}
mbed_official	5:b3b3370574cf	3430	}
mbed_official	5:b3b3370574cf	3431	LEAVE_FF(fs, res);
emilmont	1:46ce1e16c870	3432	}
emilmont	1:46ce1e16c870	3433
emilmont	1:46ce1e16c870	3434
emilmont	1:46ce1e16c870	3435
emilmont	1:46ce1e16c870	3436
emilmont	1:46ce1e16c870	3437	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3438	/* Truncate File */
emilmont	1:46ce1e16c870	3439	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3440
emilmont	1:46ce1e16c870	3441	FRESULT f_truncate (
mbed_official	5:b3b3370574cf	3442	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	3443	)
emilmont	1:46ce1e16c870	3444	{
mbed_official	5:b3b3370574cf	3445	FRESULT res;
mbed_official	5:b3b3370574cf	3446	DWORD ncl;
mbed_official	5:b3b3370574cf	3447
mbed_official	5:b3b3370574cf	3448
mbed_official	5:b3b3370574cf	3449	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	3450	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3451	if (fp->err) { /* Check error */
mbed_official	5:b3b3370574cf	3452	res = (FRESULT)fp->err;
mbed_official	5:b3b3370574cf	3453	} else {
mbed_official	5:b3b3370574cf	3454	if (!(fp->flag & FA_WRITE)) /* Check access mode */
mbed_official	5:b3b3370574cf	3455	res = FR_DENIED;
mbed_official	5:b3b3370574cf	3456	}
mbed_official	5:b3b3370574cf	3457	}
mbed_official	5:b3b3370574cf	3458	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3459	if (fp->fsize > fp->fptr) {
mbed_official	5:b3b3370574cf	3460	fp->fsize = fp->fptr; /* Set file size to current R/W point */
mbed_official	5:b3b3370574cf	3461	fp->flag \|= FA__WRITTEN;
mbed_official	5:b3b3370574cf	3462	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
mbed_official	5:b3b3370574cf	3463	res = remove_chain(fp->fs, fp->sclust);
mbed_official	5:b3b3370574cf	3464	fp->sclust = 0;
mbed_official	5:b3b3370574cf	3465	} else { /* When truncate a part of the file, remove remaining clusters */
mbed_official	5:b3b3370574cf	3466	ncl = get_fat(fp->fs, fp->clust);
mbed_official	5:b3b3370574cf	3467	res = FR_OK;
mbed_official	5:b3b3370574cf	3468	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	3469	if (ncl == 1) res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	3470	if (res == FR_OK && ncl < fp->fs->n_fatent) {
mbed_official	5:b3b3370574cf	3471	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
mbed_official	5:b3b3370574cf	3472	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
mbed_official	5:b3b3370574cf	3473	}
mbed_official	5:b3b3370574cf	3474	}
mbed_official	5:b3b3370574cf	3475	#if !_FS_TINY
mbed_official	5:b3b3370574cf	3476	if (res == FR_OK && (fp->flag & FA__DIRTY)) {
mbed_official	5:b3b3370574cf	3477	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mbed_official	5:b3b3370574cf	3478	res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	3479	else
mbed_official	5:b3b3370574cf	3480	fp->flag &= ~FA__DIRTY;
mbed_official	5:b3b3370574cf	3481	}
mbed_official	5:b3b3370574cf	3482	#endif
mbed_official	5:b3b3370574cf	3483	}
mbed_official	5:b3b3370574cf	3484	if (res != FR_OK) fp->err = (FRESULT)res;
mbed_official	5:b3b3370574cf	3485	}
mbed_official	5:b3b3370574cf	3486
mbed_official	5:b3b3370574cf	3487	LEAVE_FF(fp->fs, res);
emilmont	1:46ce1e16c870	3488	}
emilmont	1:46ce1e16c870	3489
emilmont	1:46ce1e16c870	3490
emilmont	1:46ce1e16c870	3491
emilmont	1:46ce1e16c870	3492
emilmont	1:46ce1e16c870	3493	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3494	/* Delete a File or Directory */
emilmont	1:46ce1e16c870	3495	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3496
emilmont	1:46ce1e16c870	3497	FRESULT f_unlink (
mbed_official	5:b3b3370574cf	3498	const TCHAR* path /* Pointer to the file or directory path */
emilmont	1:46ce1e16c870	3499	)
emilmont	1:46ce1e16c870	3500	{
mbed_official	5:b3b3370574cf	3501	FRESULT res;
mbed_official	5:b3b3370574cf	3502	FATFS_DIR dj, sdj;
mbed_official	5:b3b3370574cf	3503	BYTE *FATFS_DIR;
mbed_official	5:b3b3370574cf	3504	DWORD dclst = 0;
mbed_official	5:b3b3370574cf	3505	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3506
mbed_official	5:b3b3370574cf	3507
mbed_official	5:b3b3370574cf	3508	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3509	res = find_volume(&dj.fs, &path, 1);
mbed_official	5:b3b3370574cf	3510	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3511	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3512	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3513	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3514	res = FR_INVALID_NAME; /* Cannot remove dot entry */
emilmont	1:46ce1e16c870	3515	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3516	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open object */
emilmont	1:46ce1e16c870	3517	#endif
mbed_official	5:b3b3370574cf	3518	if (res == FR_OK) { /* The object is accessible */
mbed_official	5:b3b3370574cf	3519	FATFS_DIR = dj.FATFS_DIR;
mbed_official	5:b3b3370574cf	3520	if (!FATFS_DIR) {
mbed_official	5:b3b3370574cf	3521	res = FR_INVALID_NAME; /* Cannot remove the origin directory */
mbed_official	5:b3b3370574cf	3522	} else {
mbed_official	5:b3b3370574cf	3523	if (FATFS_DIR[DIR_Attr] & AM_RDO)
mbed_official	5:b3b3370574cf	3524	res = FR_DENIED; /* Cannot remove R/O object */
mbed_official	5:b3b3370574cf	3525	}
mbed_official	5:b3b3370574cf	3526	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3527	dclst = ld_clust(dj.fs, FATFS_DIR);
mbed_official	5:b3b3370574cf	3528	if (dclst && (FATFS_DIR[DIR_Attr] & AM_DIR)) { /* Is it a sub-directory ? */
emilmont	1:46ce1e16c870	3529	#if _FS_RPATH
mbed_official	5:b3b3370574cf	3530	if (dclst == dj.fs->cdir) { /* Is it the current directory? */
mbed_official	5:b3b3370574cf	3531	res = FR_DENIED;
mbed_official	5:b3b3370574cf	3532	} else
emilmont	1:46ce1e16c870	3533	#endif
mbed_official	5:b3b3370574cf	3534	{
mbed_official	5:b3b3370574cf	3535	mem_cpy(&sdj, &dj, sizeof (FATFS_DIR)); /* Open the sub-directory */
mbed_official	5:b3b3370574cf	3536	sdj.sclust = dclst;
mbed_official	5:b3b3370574cf	3537	res = dir_sdi(&sdj, 2);
mbed_official	5:b3b3370574cf	3538	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3539	res = dir_read(&sdj, 0); /* Read an item (excluding dot entries) */
mbed_official	5:b3b3370574cf	3540	if (res == FR_OK) res = FR_DENIED; /* Not empty? (cannot remove) */
mbed_official	5:b3b3370574cf	3541	if (res == FR_NO_FILE) res = FR_OK; /* Empty? (can remove) */
mbed_official	5:b3b3370574cf	3542	}
mbed_official	5:b3b3370574cf	3543	}
mbed_official	5:b3b3370574cf	3544	}
mbed_official	5:b3b3370574cf	3545	}
mbed_official	5:b3b3370574cf	3546	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3547	res = dir_remove(&dj); /* Remove the directory entry */
mbed_official	5:b3b3370574cf	3548	if (res == FR_OK && dclst) /* Remove the cluster chain if exist */
mbed_official	5:b3b3370574cf	3549	res = remove_chain(dj.fs, dclst);
mbed_official	5:b3b3370574cf	3550	if (res == FR_OK) res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3551	}
mbed_official	5:b3b3370574cf	3552	}
mbed_official	5:b3b3370574cf	3553	FREE_BUF();
mbed_official	5:b3b3370574cf	3554	}
mbed_official	5:b3b3370574cf	3555
mbed_official	5:b3b3370574cf	3556	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3557	}
emilmont	1:46ce1e16c870	3558
emilmont	1:46ce1e16c870	3559
emilmont	1:46ce1e16c870	3560
emilmont	1:46ce1e16c870	3561
emilmont	1:46ce1e16c870	3562	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3563	/* Create a Directory */
emilmont	1:46ce1e16c870	3564	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3565
emilmont	1:46ce1e16c870	3566	FRESULT f_mkdir (
mbed_official	5:b3b3370574cf	3567	const TCHAR* path /* Pointer to the directory path */
emilmont	1:46ce1e16c870	3568	)
emilmont	1:46ce1e16c870	3569	{
mbed_official	5:b3b3370574cf	3570	FRESULT res;
mbed_official	5:b3b3370574cf	3571	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3572	BYTE *FATFS_DIR, n;
mbed_official	5:b3b3370574cf	3573	DWORD dsc, dcl, pcl, tm = GET_FATTIME();
mbed_official	5:b3b3370574cf	3574	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3575
mbed_official	5:b3b3370574cf	3576
mbed_official	5:b3b3370574cf	3577	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3578	res = find_volume(&dj.fs, &path, 1);
mbed_official	5:b3b3370574cf	3579	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3580	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3581	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3582	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
mbed_official	5:b3b3370574cf	3583	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3584	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3585	if (res == FR_NO_FILE) { /* Can create a new directory */
mbed_official	5:b3b3370574cf	3586	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
mbed_official	5:b3b3370574cf	3587	res = FR_OK;
mbed_official	5:b3b3370574cf	3588	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
mbed_official	5:b3b3370574cf	3589	if (dcl == 1) res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	3590	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
mbed_official	5:b3b3370574cf	3591	if (res == FR_OK) /* Flush FAT */
mbed_official	5:b3b3370574cf	3592	res = sync_window(dj.fs);
mbed_official	5:b3b3370574cf	3593	if (res == FR_OK) { /* Initialize the new directory table */
mbed_official	5:b3b3370574cf	3594	dsc = clust2sect(dj.fs, dcl);
mbed_official	5:b3b3370574cf	3595	FATFS_DIR = dj.fs->win;
mbed_official	5:b3b3370574cf	3596	mem_set(FATFS_DIR, 0, SS(dj.fs));
mbed_official	5:b3b3370574cf	3597	mem_set(FATFS_DIR + DIR_Name, ' ', 11); /* Create "." entry */
mbed_official	5:b3b3370574cf	3598	FATFS_DIR[DIR_Name] = '.';
mbed_official	5:b3b3370574cf	3599	FATFS_DIR[DIR_Attr] = AM_DIR;
mbed_official	5:b3b3370574cf	3600	ST_DWORD(FATFS_DIR + DIR_WrtTime, tm);
mbed_official	5:b3b3370574cf	3601	st_clust(FATFS_DIR, dcl);
mbed_official	5:b3b3370574cf	3602	mem_cpy(FATFS_DIR + SZ_DIRE, FATFS_DIR, SZ_DIRE); /* Create ".." entry */
mbed_official	5:b3b3370574cf	3603	FATFS_DIR[SZ_DIRE + 1] = '.'; pcl = dj.sclust;
mbed_official	5:b3b3370574cf	3604	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
mbed_official	5:b3b3370574cf	3605	pcl = 0;
mbed_official	5:b3b3370574cf	3606	st_clust(FATFS_DIR + SZ_DIRE, pcl);
mbed_official	5:b3b3370574cf	3607	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
mbed_official	5:b3b3370574cf	3608	dj.fs->winsect = dsc++;
mbed_official	5:b3b3370574cf	3609	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3610	res = sync_window(dj.fs);
mbed_official	5:b3b3370574cf	3611	if (res != FR_OK) break;
mbed_official	5:b3b3370574cf	3612	mem_set(FATFS_DIR, 0, SS(dj.fs));
mbed_official	5:b3b3370574cf	3613	}
mbed_official	5:b3b3370574cf	3614	}
mbed_official	5:b3b3370574cf	3615	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
mbed_official	5:b3b3370574cf	3616	if (res != FR_OK) {
mbed_official	5:b3b3370574cf	3617	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
mbed_official	5:b3b3370574cf	3618	} else {
mbed_official	5:b3b3370574cf	3619	FATFS_DIR = dj.FATFS_DIR;
mbed_official	5:b3b3370574cf	3620	FATFS_DIR[DIR_Attr] = AM_DIR; /* Attribute */
mbed_official	5:b3b3370574cf	3621	ST_DWORD(FATFS_DIR + DIR_WrtTime, tm); /* Created time */
mbed_official	5:b3b3370574cf	3622	st_clust(FATFS_DIR, dcl); /* Table start cluster */
mbed_official	5:b3b3370574cf	3623	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3624	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3625	}
mbed_official	5:b3b3370574cf	3626	}
mbed_official	5:b3b3370574cf	3627	FREE_BUF();
mbed_official	5:b3b3370574cf	3628	}
mbed_official	5:b3b3370574cf	3629
mbed_official	5:b3b3370574cf	3630	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3631	}
emilmont	1:46ce1e16c870	3632
emilmont	1:46ce1e16c870	3633
emilmont	1:46ce1e16c870	3634
emilmont	1:46ce1e16c870	3635
emilmont	1:46ce1e16c870	3636	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3637	/* Change Attribute */
emilmont	1:46ce1e16c870	3638	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3639
emilmont	1:46ce1e16c870	3640	FRESULT f_chmod (
mbed_official	5:b3b3370574cf	3641	const TCHAR* path, /* Pointer to the file path */
mbed_official	5:b3b3370574cf	3642	BYTE attr, /* Attribute bits */
mbed_official	5:b3b3370574cf	3643	BYTE mask /* Attribute mask to change */
emilmont	1:46ce1e16c870	3644	)
emilmont	1:46ce1e16c870	3645	{
mbed_official	5:b3b3370574cf	3646	FRESULT res;
mbed_official	5:b3b3370574cf	3647	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3648	BYTE *FATFS_DIR;
mbed_official	5:b3b3370574cf	3649	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3650
mbed_official	5:b3b3370574cf	3651
mbed_official	5:b3b3370574cf	3652	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3653	res = find_volume(&dj.fs, &path, 1);
mbed_official	5:b3b3370574cf	3654	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3655	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3656	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3657	FREE_BUF();
mbed_official	5:b3b3370574cf	3658	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3659	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3660	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3661	FATFS_DIR = dj.FATFS_DIR;
mbed_official	5:b3b3370574cf	3662	if (!FATFS_DIR) { /* Is it a root directory? */
mbed_official	5:b3b3370574cf	3663	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3664	} else { /* File or sub directory */
mbed_official	5:b3b3370574cf	3665	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
mbed_official	5:b3b3370574cf	3666	FATFS_DIR[DIR_Attr] = (attr & mask) \| (FATFS_DIR[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
mbed_official	5:b3b3370574cf	3667	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3668	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3669	}
mbed_official	5:b3b3370574cf	3670	}
mbed_official	5:b3b3370574cf	3671	}
mbed_official	5:b3b3370574cf	3672
mbed_official	5:b3b3370574cf	3673	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3674	}
emilmont	1:46ce1e16c870	3675
emilmont	1:46ce1e16c870	3676
emilmont	1:46ce1e16c870	3677
emilmont	1:46ce1e16c870	3678
emilmont	1:46ce1e16c870	3679	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3680	/* Rename File/Directory */
emilmont	1:46ce1e16c870	3681	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3682
emilmont	1:46ce1e16c870	3683	FRESULT f_rename (
mbed_official	5:b3b3370574cf	3684	const TCHAR* path_old, /* Pointer to the object to be renamed */
mbed_official	5:b3b3370574cf	3685	const TCHAR* path_new /* Pointer to the new name */
emilmont	1:46ce1e16c870	3686	)
emilmont	1:46ce1e16c870	3687	{
mbed_official	5:b3b3370574cf	3688	FRESULT res;
mbed_official	5:b3b3370574cf	3689	FATFS_DIR djo, djn;
mbed_official	5:b3b3370574cf	3690	BYTE buf[21], *FATFS_DIR;
mbed_official	5:b3b3370574cf	3691	DWORD dw;
mbed_official	5:b3b3370574cf	3692	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3693
mbed_official	5:b3b3370574cf	3694
mbed_official	5:b3b3370574cf	3695	/* Get logical drive number of the source object */
mbed_official	5:b3b3370574cf	3696	res = find_volume(&djo.fs, &path_old, 1);
mbed_official	5:b3b3370574cf	3697	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3698	djn.fs = djo.fs;
mbed_official	5:b3b3370574cf	3699	INIT_BUF(djo);
mbed_official	5:b3b3370574cf	3700	res = follow_path(&djo, path_old); /* Check old object */
mbed_official	5:b3b3370574cf	3701	if (_FS_RPATH && res == FR_OK && (djo.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3702	res = FR_INVALID_NAME;
emilmont	1:46ce1e16c870	3703	#if _FS_LOCK
mbed_official	5:b3b3370574cf	3704	if (res == FR_OK) res = chk_lock(&djo, 2);
emilmont	1:46ce1e16c870	3705	#endif
mbed_official	5:b3b3370574cf	3706	if (res == FR_OK) { /* Old object is found */
mbed_official	5:b3b3370574cf	3707	if (!djo.FATFS_DIR) { /* Is root FATFS_DIR? */
mbed_official	5:b3b3370574cf	3708	res = FR_NO_FILE;
mbed_official	5:b3b3370574cf	3709	} else {
mbed_official	5:b3b3370574cf	3710	mem_cpy(buf, djo.FATFS_DIR + DIR_Attr, 21); /* Save information about object except name */
mbed_official	5:b3b3370574cf	3711	mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Duplicate the directory object */
mbed_official	5:b3b3370574cf	3712	if (get_ldnumber(&path_new) >= 0) /* Snip drive number off and ignore it */
mbed_official	5:b3b3370574cf	3713	res = follow_path(&djn, path_new); /* and make sure if new object name is not conflicting */
mbed_official	5:b3b3370574cf	3714	else
mbed_official	5:b3b3370574cf	3715	res = FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	3716	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
mbed_official	5:b3b3370574cf	3717	if (res == FR_NO_FILE) { /* It is a valid path and no name collision */
mbed_official	5:b3b3370574cf	3718	res = dir_register(&djn); /* Register the new entry */
mbed_official	5:b3b3370574cf	3719	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3720	/* Start of critical section where any interruption can cause a cross-link */
mbed_official	5:b3b3370574cf	3721	FATFS_DIR = djn.FATFS_DIR; /* Copy information about object except name */
mbed_official	5:b3b3370574cf	3722	mem_cpy(FATFS_DIR + 13, buf + 2, 19);
mbed_official	5:b3b3370574cf	3723	FATFS_DIR[DIR_Attr] = buf[0] \| AM_ARC;
mbed_official	5:b3b3370574cf	3724	djo.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3725	if ((FATFS_DIR[DIR_Attr] & AM_DIR) && djo.sclust != djn.sclust) { /* Update .. entry in the sub-directory if needed */
mbed_official	5:b3b3370574cf	3726	dw = clust2sect(djo.fs, ld_clust(djo.fs, FATFS_DIR));
mbed_official	5:b3b3370574cf	3727	if (!dw) {
mbed_official	5:b3b3370574cf	3728	res = FR_INT_ERR;
mbed_official	5:b3b3370574cf	3729	} else {
mbed_official	5:b3b3370574cf	3730	res = move_window(djo.fs, dw);
mbed_official	5:b3b3370574cf	3731	FATFS_DIR = djo.fs->win + SZ_DIRE * 1; /* Ptr to .. entry */
mbed_official	5:b3b3370574cf	3732	if (res == FR_OK && FATFS_DIR[1] == '.') {
mbed_official	5:b3b3370574cf	3733	st_clust(FATFS_DIR, djn.sclust);
mbed_official	5:b3b3370574cf	3734	djo.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3735	}
mbed_official	5:b3b3370574cf	3736	}
mbed_official	5:b3b3370574cf	3737	}
mbed_official	5:b3b3370574cf	3738	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3739	res = dir_remove(&djo); /* Remove old entry */
mbed_official	5:b3b3370574cf	3740	if (res == FR_OK)
mbed_official	5:b3b3370574cf	3741	res = sync_fs(djo.fs);
mbed_official	5:b3b3370574cf	3742	}
mbed_official	5:b3b3370574cf	3743	/* End of critical section */
mbed_official	5:b3b3370574cf	3744	}
mbed_official	5:b3b3370574cf	3745	}
mbed_official	5:b3b3370574cf	3746	}
mbed_official	5:b3b3370574cf	3747	}
mbed_official	5:b3b3370574cf	3748	FREE_BUF();
mbed_official	5:b3b3370574cf	3749	}
mbed_official	5:b3b3370574cf	3750
mbed_official	5:b3b3370574cf	3751	LEAVE_FF(djo.fs, res);
mbed_official	5:b3b3370574cf	3752	}
mbed_official	5:b3b3370574cf	3753
mbed_official	5:b3b3370574cf	3754
mbed_official	5:b3b3370574cf	3755
mbed_official	5:b3b3370574cf	3756
mbed_official	5:b3b3370574cf	3757	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3758	/* Change Timestamp */
mbed_official	5:b3b3370574cf	3759	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3760
mbed_official	5:b3b3370574cf	3761	FRESULT f_utime (
mbed_official	5:b3b3370574cf	3762	const TCHAR* path, /* Pointer to the file/directory name */
mbed_official	5:b3b3370574cf	3763	const FILINFO* fno /* Pointer to the time stamp to be set */
mbed_official	5:b3b3370574cf	3764	)
mbed_official	5:b3b3370574cf	3765	{
mbed_official	5:b3b3370574cf	3766	FRESULT res;
mbed_official	5:b3b3370574cf	3767	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3768	BYTE *FATFS_DIR;
mbed_official	5:b3b3370574cf	3769	DEFINE_NAMEBUF;
mbed_official	5:b3b3370574cf	3770
mbed_official	5:b3b3370574cf	3771
mbed_official	5:b3b3370574cf	3772	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3773	res = find_volume(&dj.fs, &path, 1);
mbed_official	5:b3b3370574cf	3774	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3775	INIT_BUF(dj);
mbed_official	5:b3b3370574cf	3776	res = follow_path(&dj, path); /* Follow the file path */
mbed_official	5:b3b3370574cf	3777	FREE_BUF();
mbed_official	5:b3b3370574cf	3778	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mbed_official	5:b3b3370574cf	3779	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3780	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3781	FATFS_DIR = dj.FATFS_DIR;
mbed_official	5:b3b3370574cf	3782	if (!FATFS_DIR) { /* Root directory */
mbed_official	5:b3b3370574cf	3783	res = FR_INVALID_NAME;
mbed_official	5:b3b3370574cf	3784	} else { /* File or sub-directory */
mbed_official	5:b3b3370574cf	3785	ST_WORD(FATFS_DIR + DIR_WrtTime, fno->ftime);
mbed_official	5:b3b3370574cf	3786	ST_WORD(FATFS_DIR + DIR_WrtDate, fno->fdate);
mbed_official	5:b3b3370574cf	3787	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3788	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3789	}
mbed_official	5:b3b3370574cf	3790	}
mbed_official	5:b3b3370574cf	3791	}
mbed_official	5:b3b3370574cf	3792
mbed_official	5:b3b3370574cf	3793	LEAVE_FF(dj.fs, res);
emilmont	1:46ce1e16c870	3794	}
emilmont	1:46ce1e16c870	3795
emilmont	1:46ce1e16c870	3796	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	3797	#endif /* _FS_MINIMIZE == 0 */
emilmont	1:46ce1e16c870	3798	#endif /* _FS_MINIMIZE <= 1 */
emilmont	1:46ce1e16c870	3799	#endif /* _FS_MINIMIZE <= 2 */
emilmont	1:46ce1e16c870	3800
emilmont	1:46ce1e16c870	3801
emilmont	1:46ce1e16c870	3802
mbed_official	5:b3b3370574cf	3803
mbed_official	5:b3b3370574cf	3804	#if _USE_LABEL
mbed_official	5:b3b3370574cf	3805	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3806	/* Get volume label */
mbed_official	5:b3b3370574cf	3807	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3808
mbed_official	5:b3b3370574cf	3809	FRESULT f_getlabel (
mbed_official	5:b3b3370574cf	3810	const TCHAR* path, /* Path name of the logical drive number */
mbed_official	5:b3b3370574cf	3811	TCHAR* label, /* Pointer to a buffer to return the volume label */
mbed_official	5:b3b3370574cf	3812	DWORD* vsn /* Pointer to a variable to return the volume serial number */
mbed_official	5:b3b3370574cf	3813	)
mbed_official	5:b3b3370574cf	3814	{
mbed_official	5:b3b3370574cf	3815	FRESULT res;
mbed_official	5:b3b3370574cf	3816	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3817	UINT i, j;
mbed_official	5:b3b3370574cf	3818	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	3819	WCHAR w;
mbed_official	5:b3b3370574cf	3820	#endif
mbed_official	5:b3b3370574cf	3821
mbed_official	5:b3b3370574cf	3822
mbed_official	5:b3b3370574cf	3823	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3824	res = find_volume(&dj.fs, &path, 0);
mbed_official	5:b3b3370574cf	3825
mbed_official	5:b3b3370574cf	3826	/* Get volume label */
mbed_official	5:b3b3370574cf	3827	if (res == FR_OK && label) {
mbed_official	5:b3b3370574cf	3828	dj.sclust = 0; /* Open root directory */
mbed_official	5:b3b3370574cf	3829	res = dir_sdi(&dj, 0);
mbed_official	5:b3b3370574cf	3830	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3831	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
mbed_official	5:b3b3370574cf	3832	if (res == FR_OK) { /* A volume label is exist */
mbed_official	5:b3b3370574cf	3833	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	3834	i = j = 0;
mbed_official	5:b3b3370574cf	3835	do {
mbed_official	5:b3b3370574cf	3836	w = (i < 11) ? dj.FATFS_DIR[i++] : ' ';
mbed_official	5:b3b3370574cf	3837	if (IsDBCS1(w) && i < 11 && IsDBCS2(dj.FATFS_DIR[i]))
mbed_official	5:b3b3370574cf	3838	w = w << 8 \| dj.FATFS_DIR[i++];
mbed_official	5:b3b3370574cf	3839	label[j++] = ff_convert(w, 1); /* OEM -> Unicode */
mbed_official	5:b3b3370574cf	3840	} while (j < 11);
mbed_official	5:b3b3370574cf	3841	#else
mbed_official	5:b3b3370574cf	3842	mem_cpy(label, dj.FATFS_DIR, 11);
mbed_official	5:b3b3370574cf	3843	#endif
mbed_official	5:b3b3370574cf	3844	j = 11;
mbed_official	5:b3b3370574cf	3845	do {
mbed_official	5:b3b3370574cf	3846	label[j] = 0;
mbed_official	5:b3b3370574cf	3847	if (!j) break;
mbed_official	5:b3b3370574cf	3848	} while (label[--j] == ' ');
mbed_official	5:b3b3370574cf	3849	}
mbed_official	5:b3b3370574cf	3850	if (res == FR_NO_FILE) { /* No label, return nul string */
mbed_official	5:b3b3370574cf	3851	label[0] = 0;
mbed_official	5:b3b3370574cf	3852	res = FR_OK;
mbed_official	5:b3b3370574cf	3853	}
mbed_official	5:b3b3370574cf	3854	}
mbed_official	5:b3b3370574cf	3855	}
mbed_official	5:b3b3370574cf	3856
mbed_official	5:b3b3370574cf	3857	/* Get volume serial number */
mbed_official	5:b3b3370574cf	3858	if (res == FR_OK && vsn) {
mbed_official	5:b3b3370574cf	3859	res = move_window(dj.fs, dj.fs->volbase);
mbed_official	5:b3b3370574cf	3860	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3861	i = dj.fs->fs_type == FS_FAT32 ? BS_VolID32 : BS_VolID;
mbed_official	5:b3b3370574cf	3862	*vsn = LD_DWORD(&dj.fs->win[i]);
mbed_official	5:b3b3370574cf	3863	}
mbed_official	5:b3b3370574cf	3864	}
mbed_official	5:b3b3370574cf	3865
mbed_official	5:b3b3370574cf	3866	LEAVE_FF(dj.fs, res);
mbed_official	5:b3b3370574cf	3867	}
mbed_official	5:b3b3370574cf	3868
mbed_official	5:b3b3370574cf	3869
mbed_official	5:b3b3370574cf	3870
mbed_official	5:b3b3370574cf	3871	#if !_FS_READONLY
mbed_official	5:b3b3370574cf	3872	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3873	/* Set volume label */
mbed_official	5:b3b3370574cf	3874	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	3875
mbed_official	5:b3b3370574cf	3876	FRESULT f_setlabel (
mbed_official	5:b3b3370574cf	3877	const TCHAR* label /* Pointer to the volume label to set */
mbed_official	5:b3b3370574cf	3878	)
mbed_official	5:b3b3370574cf	3879	{
mbed_official	5:b3b3370574cf	3880	FRESULT res;
mbed_official	5:b3b3370574cf	3881	FATFS_DIR dj;
mbed_official	5:b3b3370574cf	3882	BYTE vn[11];
mbed_official	5:b3b3370574cf	3883	UINT i, j, sl;
mbed_official	5:b3b3370574cf	3884	WCHAR w;
mbed_official	5:b3b3370574cf	3885	DWORD tm;
mbed_official	5:b3b3370574cf	3886
mbed_official	5:b3b3370574cf	3887
mbed_official	5:b3b3370574cf	3888	/* Get logical drive number */
mbed_official	5:b3b3370574cf	3889	res = find_volume(&dj.fs, &label, 1);
mbed_official	5:b3b3370574cf	3890	if (res) LEAVE_FF(dj.fs, res);
mbed_official	5:b3b3370574cf	3891
mbed_official	5:b3b3370574cf	3892	/* Create a volume label in directory form */
mbed_official	5:b3b3370574cf	3893	vn[0] = 0;
mbed_official	5:b3b3370574cf	3894	for (sl = 0; label[sl]; sl++) ; /* Get name length */
mbed_official	5:b3b3370574cf	3895	for ( ; sl && label[sl - 1] == ' '; sl--) ; /* Remove trailing spaces */
mbed_official	5:b3b3370574cf	3896	if (sl) { /* Create volume label in directory form */
mbed_official	5:b3b3370574cf	3897	i = j = 0;
mbed_official	5:b3b3370574cf	3898	do {
mbed_official	5:b3b3370574cf	3899	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	3900	w = ff_convert(ff_wtoupper(label[i++]), 0);
mbed_official	5:b3b3370574cf	3901	#else
mbed_official	5:b3b3370574cf	3902	w = (BYTE)label[i++];
mbed_official	5:b3b3370574cf	3903	if (IsDBCS1(w))
mbed_official	5:b3b3370574cf	3904	w = (j < 10 && i < sl && IsDBCS2(label[i])) ? w << 8 \| (BYTE)label[i++] : 0;
mbed_official	5:b3b3370574cf	3905	#if _USE_LFN
mbed_official	5:b3b3370574cf	3906	w = ff_convert(ff_wtoupper(ff_convert(w, 1)), 0);
mbed_official	5:b3b3370574cf	3907	#else
mbed_official	5:b3b3370574cf	3908	if (IsLower(w)) w -= 0x20; /* To upper ASCII characters */
mbed_official	5:b3b3370574cf	3909	#ifdef _EXCVT
mbed_official	5:b3b3370574cf	3910	if (w >= 0x80) w = ExCvt[w - 0x80]; /* To upper extended characters (SBCS cfg) */
mbed_official	5:b3b3370574cf	3911	#else
mbed_official	5:b3b3370574cf	3912	if (!_DF1S && w >= 0x80) w = 0; /* Reject extended characters (ASCII cfg) */
mbed_official	5:b3b3370574cf	3913	#endif
mbed_official	5:b3b3370574cf	3914	#endif
mbed_official	5:b3b3370574cf	3915	#endif
mbed_official	5:b3b3370574cf	3916	if (!w \|\| chk_chr("\"+,.:;<=>\?[]\|\x7F", w) \|\| j >= (UINT)((w >= 0x100) ? 10 : 11)) / Reject invalid characters for volume label */
mbed_official	5:b3b3370574cf	3917	LEAVE_FF(dj.fs, FR_INVALID_NAME);
mbed_official	5:b3b3370574cf	3918	if (w >= 0x100) vn[j++] = (BYTE)(w >> 8);
mbed_official	5:b3b3370574cf	3919	vn[j++] = (BYTE)w;
mbed_official	5:b3b3370574cf	3920	} while (i < sl);
mbed_official	5:b3b3370574cf	3921	while (j < 11) vn[j++] = ' '; /* Fill remaining name field */
mbed_official	5:b3b3370574cf	3922	if (vn[0] == DDEM) LEAVE_FF(dj.fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */
mbed_official	5:b3b3370574cf	3923	}
mbed_official	5:b3b3370574cf	3924
mbed_official	5:b3b3370574cf	3925	/* Set volume label */
mbed_official	5:b3b3370574cf	3926	dj.sclust = 0; /* Open root directory */
mbed_official	5:b3b3370574cf	3927	res = dir_sdi(&dj, 0);
mbed_official	5:b3b3370574cf	3928	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3929	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
mbed_official	5:b3b3370574cf	3930	if (res == FR_OK) { /* A volume label is found */
mbed_official	5:b3b3370574cf	3931	if (vn[0]) {
mbed_official	5:b3b3370574cf	3932	mem_cpy(dj.FATFS_DIR, vn, 11); /* Change the volume label name */
mbed_official	5:b3b3370574cf	3933	tm = GET_FATTIME();
mbed_official	5:b3b3370574cf	3934	ST_DWORD(dj.FATFS_DIR + DIR_WrtTime, tm);
mbed_official	5:b3b3370574cf	3935	} else {
mbed_official	5:b3b3370574cf	3936	dj.FATFS_DIR[0] = DDEM; /* Remove the volume label */
mbed_official	5:b3b3370574cf	3937	}
mbed_official	5:b3b3370574cf	3938	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3939	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3940	} else { /* No volume label is found or error */
mbed_official	5:b3b3370574cf	3941	if (res == FR_NO_FILE) {
mbed_official	5:b3b3370574cf	3942	res = FR_OK;
mbed_official	5:b3b3370574cf	3943	if (vn[0]) { /* Create volume label as new */
mbed_official	5:b3b3370574cf	3944	res = dir_alloc(&dj, 1); /* Allocate an entry for volume label */
mbed_official	5:b3b3370574cf	3945	if (res == FR_OK) {
mbed_official	5:b3b3370574cf	3946	mem_set(dj.FATFS_DIR, 0, SZ_DIRE); /* Set volume label */
mbed_official	5:b3b3370574cf	3947	mem_cpy(dj.FATFS_DIR, vn, 11);
mbed_official	5:b3b3370574cf	3948	dj.FATFS_DIR[DIR_Attr] = AM_VOL;
mbed_official	5:b3b3370574cf	3949	tm = GET_FATTIME();
mbed_official	5:b3b3370574cf	3950	ST_DWORD(dj.FATFS_DIR + DIR_WrtTime, tm);
mbed_official	5:b3b3370574cf	3951	dj.fs->wflag = 1;
mbed_official	5:b3b3370574cf	3952	res = sync_fs(dj.fs);
mbed_official	5:b3b3370574cf	3953	}
mbed_official	5:b3b3370574cf	3954	}
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	LEAVE_FF(dj.fs, res);
mbed_official	5:b3b3370574cf	3960	}
mbed_official	5:b3b3370574cf	3961
mbed_official	5:b3b3370574cf	3962	#endif /* !_FS_READONLY */
mbed_official	5:b3b3370574cf	3963	#endif /* _USE_LABEL */
mbed_official	5:b3b3370574cf	3964
mbed_official	5:b3b3370574cf	3965
mbed_official	5:b3b3370574cf	3966
emilmont	1:46ce1e16c870	3967	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3968	/* Forward data to the stream directly (available on only tiny cfg) */
emilmont	1:46ce1e16c870	3969	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	3970	#if _USE_FORWARD && _FS_TINY
emilmont	1:46ce1e16c870	3971
emilmont	1:46ce1e16c870	3972	FRESULT f_forward (
mbed_official	5:b3b3370574cf	3973	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	3974	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
mbed_official	5:b3b3370574cf	3975	UINT btf, /* Number of bytes to forward */
mbed_official	5:b3b3370574cf	3976	UINT* bf /* Pointer to number of bytes forwarded */
emilmont	1:46ce1e16c870	3977	)
emilmont	1:46ce1e16c870	3978	{
mbed_official	5:b3b3370574cf	3979	FRESULT res;
mbed_official	5:b3b3370574cf	3980	DWORD remain, clst, sect;
mbed_official	5:b3b3370574cf	3981	UINT rcnt;
mbed_official	5:b3b3370574cf	3982	BYTE csect;
mbed_official	5:b3b3370574cf	3983
mbed_official	5:b3b3370574cf	3984
mbed_official	5:b3b3370574cf	3985	bf = 0; / Clear transfer byte counter */
mbed_official	5:b3b3370574cf	3986
mbed_official	5:b3b3370574cf	3987	res = validate(fp); /* Check validity of the object */
mbed_official	5:b3b3370574cf	3988	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mbed_official	5:b3b3370574cf	3989	if (fp->err) /* Check error */
mbed_official	5:b3b3370574cf	3990	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mbed_official	5:b3b3370574cf	3991	if (!(fp->flag & FA_READ)) /* Check access mode */
mbed_official	5:b3b3370574cf	3992	LEAVE_FF(fp->fs, FR_DENIED);
mbed_official	5:b3b3370574cf	3993
mbed_official	5:b3b3370574cf	3994	remain = fp->fsize - fp->fptr;
mbed_official	5:b3b3370574cf	3995	if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */
mbed_official	5:b3b3370574cf	3996
mbed_official	5:b3b3370574cf	3997	for ( ; btf && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
mbed_official	5:b3b3370574cf	3998	fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {
mbed_official	5:b3b3370574cf	3999	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mbed_official	5:b3b3370574cf	4000	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mbed_official	5:b3b3370574cf	4001	if (!csect) { /* On the cluster boundary? */
mbed_official	5:b3b3370574cf	4002	clst = (fp->fptr == 0) ? /* On the top of the file? */
mbed_official	5:b3b3370574cf	4003	fp->sclust : get_fat(fp->fs, fp->clust);
mbed_official	5:b3b3370574cf	4004	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	4005	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	4006	fp->clust = clst; /* Update current cluster */
mbed_official	5:b3b3370574cf	4007	}
mbed_official	5:b3b3370574cf	4008	}
mbed_official	5:b3b3370574cf	4009	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
mbed_official	5:b3b3370574cf	4010	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	4011	sect += csect;
mbed_official	5:b3b3370574cf	4012	if (move_window(fp->fs, sect) != FR_OK) /* Move sector window */
mbed_official	5:b3b3370574cf	4013	ABORT(fp->fs, FR_DISK_ERR);
mbed_official	5:b3b3370574cf	4014	fp->dsect = sect;
mbed_official	5:b3b3370574cf	4015	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
mbed_official	5:b3b3370574cf	4016	if (rcnt > btf) rcnt = btf;
mbed_official	5:b3b3370574cf	4017	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
mbed_official	5:b3b3370574cf	4018	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
mbed_official	5:b3b3370574cf	4019	}
mbed_official	5:b3b3370574cf	4020
mbed_official	5:b3b3370574cf	4021	LEAVE_FF(fp->fs, FR_OK);
emilmont	1:46ce1e16c870	4022	}
emilmont	1:46ce1e16c870	4023	#endif /* _USE_FORWARD */
emilmont	1:46ce1e16c870	4024
emilmont	1:46ce1e16c870	4025
emilmont	1:46ce1e16c870	4026
emilmont	1:46ce1e16c870	4027	#if _USE_MKFS && !_FS_READONLY
emilmont	1:46ce1e16c870	4028	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4029	/* Create file system on the logical drive */
emilmont	1:46ce1e16c870	4030	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4031	#define N_ROOTDIR 512 /* Number of root directory entries for FAT12/16 */
mbed_official	5:b3b3370574cf	4032	#define N_FATS 1 /* Number of FATs (1 or 2) */
emilmont	1:46ce1e16c870	4033
emilmont	1:46ce1e16c870	4034
emilmont	1:46ce1e16c870	4035	FRESULT f_mkfs (
mbed_official	5:b3b3370574cf	4036	const TCHAR* path, /* Logical drive number */
mbed_official	5:b3b3370574cf	4037	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
mbed_official	5:b3b3370574cf	4038	UINT au /* Size of allocation unit in unit of byte or sector */
emilmont	1:46ce1e16c870	4039	)
emilmont	1:46ce1e16c870	4040	{
mbed_official	5:b3b3370574cf	4041	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
mbed_official	5:b3b3370574cf	4042	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
mbed_official	5:b3b3370574cf	4043	int vol;
mbed_official	5:b3b3370574cf	4044	BYTE fmt, md, sys, *tbl, pdrv, part;
mbed_official	5:b3b3370574cf	4045	DWORD n_clst, vs, n, wsect;
mbed_official	5:b3b3370574cf	4046	UINT i;
mbed_official	5:b3b3370574cf	4047	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
mbed_official	5:b3b3370574cf	4048	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
mbed_official	5:b3b3370574cf	4049	FATFS *fs;
mbed_official	5:b3b3370574cf	4050	DSTATUS stat;
mbed_official	5:b3b3370574cf	4051	#if _USE_TRIM
mbed_official	5:b3b3370574cf	4052	DWORD eb[2];
mbed_official	5:b3b3370574cf	4053	#endif
mbed_official	5:b3b3370574cf	4054
mbed_official	5:b3b3370574cf	4055
mbed_official	5:b3b3370574cf	4056	/* Check mounted drive and clear work area */
mbed_official	5:b3b3370574cf	4057	if (sfd > 1) return FR_INVALID_PARAMETER;
mbed_official	5:b3b3370574cf	4058	vol = get_ldnumber(&path);
mbed_official	5:b3b3370574cf	4059	if (vol < 0) return FR_INVALID_DRIVE;
mbed_official	5:b3b3370574cf	4060	fs = FatFs[vol];
mbed_official	5:b3b3370574cf	4061	if (!fs) return FR_NOT_ENABLED;
mbed_official	5:b3b3370574cf	4062	fs->fs_type = 0;
mbed_official	5:b3b3370574cf	4063	pdrv = LD2PD(vol); /* Physical drive */
mbed_official	5:b3b3370574cf	4064	part = LD2PT(vol); /* Partition (0:auto detect, 1-4:get from partition table)*/
mbed_official	5:b3b3370574cf	4065
mbed_official	5:b3b3370574cf	4066	/* Get disk statics */
mbed_official	5:b3b3370574cf	4067	stat = disk_initialize(pdrv);
mbed_official	5:b3b3370574cf	4068	if (stat & STA_NOINIT) return FR_NOT_READY;
mbed_official	5:b3b3370574cf	4069	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	4070	#if _MAX_SS != _MIN_SS /* Get disk sector size */
mbed_official	5:b3b3370574cf	4071	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS \|\| SS(fs) < _MIN_SS)
mbed_official	5:b3b3370574cf	4072	return FR_DISK_ERR;
emilmont	1:46ce1e16c870	4073	#endif
mbed_official	5:b3b3370574cf	4074	if (_MULTI_PARTITION && part) {
mbed_official	5:b3b3370574cf	4075	/* Get partition information from partition table in the MBR */
mbed_official	5:b3b3370574cf	4076	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4077	if (LD_WORD(fs->win + BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
mbed_official	5:b3b3370574cf	4078	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mbed_official	5:b3b3370574cf	4079	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
mbed_official	5:b3b3370574cf	4080	b_vol = LD_DWORD(tbl + 8); /* Volume start sector */
mbed_official	5:b3b3370574cf	4081	n_vol = LD_DWORD(tbl + 12); /* Volume size */
mbed_official	5:b3b3370574cf	4082	} else {
mbed_official	5:b3b3370574cf	4083	/* Create a partition in this function */
mbed_official	5:b3b3370574cf	4084	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
mbed_official	5:b3b3370574cf	4085	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4086	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
mbed_official	5:b3b3370574cf	4087	n_vol -= b_vol; /* Volume size */
mbed_official	5:b3b3370574cf	4088	}
mbed_official	5:b3b3370574cf	4089
mbed_official	5:b3b3370574cf	4090	if (au & (au - 1)) au = 0;
mbed_official	5:b3b3370574cf	4091	if (!au) { /* AU auto selection */
mbed_official	5:b3b3370574cf	4092	vs = n_vol / (2000 / (SS(fs) / 512));
mbed_official	5:b3b3370574cf	4093	for (i = 0; vs < vst[i]; i++) ;
mbed_official	5:b3b3370574cf	4094	au = cst[i];
mbed_official	5:b3b3370574cf	4095	}
mbed_official	5:b3b3370574cf	4096	if (au >= _MIN_SS) au /= SS(fs); /* Number of sectors per cluster */
mbed_official	5:b3b3370574cf	4097	if (!au) au = 1;
mbed_official	5:b3b3370574cf	4098	if (au > 128) au = 128;
mbed_official	5:b3b3370574cf	4099
mbed_official	5:b3b3370574cf	4100	/* Pre-compute number of clusters and FAT sub-type */
mbed_official	5:b3b3370574cf	4101	n_clst = n_vol / au;
mbed_official	5:b3b3370574cf	4102	fmt = FS_FAT12;
mbed_official	5:b3b3370574cf	4103	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
mbed_official	5:b3b3370574cf	4104	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
mbed_official	5:b3b3370574cf	4105
mbed_official	5:b3b3370574cf	4106	/* Determine offset and size of FAT structure */
mbed_official	5:b3b3370574cf	4107	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4108	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
mbed_official	5:b3b3370574cf	4109	n_rsv = 32;
mbed_official	5:b3b3370574cf	4110	n_dir = 0;
mbed_official	5:b3b3370574cf	4111	} else {
mbed_official	5:b3b3370574cf	4112	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
mbed_official	5:b3b3370574cf	4113	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
mbed_official	5:b3b3370574cf	4114	n_rsv = 1;
mbed_official	5:b3b3370574cf	4115	n_dir = (DWORD)N_ROOTDIR * SZ_DIRE / SS(fs);
mbed_official	5:b3b3370574cf	4116	}
mbed_official	5:b3b3370574cf	4117	b_fat = b_vol + n_rsv; /* FAT area start sector */
mbed_official	5:b3b3370574cf	4118	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
mbed_official	5:b3b3370574cf	4119	b_data = b_dir + n_dir; /* Data area start sector */
mbed_official	5:b3b3370574cf	4120	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
mbed_official	5:b3b3370574cf	4121
mbed_official	5:b3b3370574cf	4122	/* Align data start sector to erase block boundary (for flash memory media) */
mbed_official	5:b3b3370574cf	4123	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
mbed_official	5:b3b3370574cf	4124	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
mbed_official	5:b3b3370574cf	4125	n = (n - b_data) / N_FATS;
mbed_official	5:b3b3370574cf	4126	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
mbed_official	5:b3b3370574cf	4127	n_rsv += n;
mbed_official	5:b3b3370574cf	4128	b_fat += n;
mbed_official	5:b3b3370574cf	4129	} else { /* FAT12/16: Expand FAT size */
mbed_official	5:b3b3370574cf	4130	n_fat += n;
mbed_official	5:b3b3370574cf	4131	}
mbed_official	5:b3b3370574cf	4132
mbed_official	5:b3b3370574cf	4133	/* Determine number of clusters and final check of validity of the FAT sub-type */
mbed_official	5:b3b3370574cf	4134	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
mbed_official	5:b3b3370574cf	4135	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
mbed_official	5:b3b3370574cf	4136	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
mbed_official	5:b3b3370574cf	4137	return FR_MKFS_ABORTED;
mbed_official	5:b3b3370574cf	4138
mbed_official	5:b3b3370574cf	4139	/* Determine system ID in the partition table */
mbed_official	5:b3b3370574cf	4140	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4141	sys = 0x0C; /* FAT32X */
mbed_official	5:b3b3370574cf	4142	} else {
mbed_official	5:b3b3370574cf	4143	if (fmt == FS_FAT12 && n_vol < 0x10000) {
mbed_official	5:b3b3370574cf	4144	sys = 0x01; /* FAT12(<65536) */
mbed_official	5:b3b3370574cf	4145	} else {
mbed_official	5:b3b3370574cf	4146	sys = (n_vol < 0x10000) ? 0x04 : 0x06; /* FAT16(<65536) : FAT12/16(>=65536) */
mbed_official	5:b3b3370574cf	4147	}
mbed_official	5:b3b3370574cf	4148	}
mbed_official	5:b3b3370574cf	4149
mbed_official	5:b3b3370574cf	4150	if (_MULTI_PARTITION && part) {
mbed_official	5:b3b3370574cf	4151	/* Update system ID in the partition table */
mbed_official	5:b3b3370574cf	4152	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mbed_official	5:b3b3370574cf	4153	tbl[4] = sys;
mbed_official	5:b3b3370574cf	4154	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to teh MBR */
mbed_official	5:b3b3370574cf	4155	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4156	md = 0xF8;
mbed_official	5:b3b3370574cf	4157	} else {
mbed_official	5:b3b3370574cf	4158	if (sfd) { /* No partition table (SFD) */
mbed_official	5:b3b3370574cf	4159	md = 0xF0;
mbed_official	5:b3b3370574cf	4160	} else { /* Create partition table (FDISK) */
mbed_official	5:b3b3370574cf	4161	mem_set(fs->win, 0, SS(fs));
mbed_official	5:b3b3370574cf	4162	tbl = fs->win + MBR_Table; /* Create partition table for single partition in the drive */
mbed_official	5:b3b3370574cf	4163	tbl[1] = 1; /* Partition start head */
mbed_official	5:b3b3370574cf	4164	tbl[2] = 1; /* Partition start sector */
mbed_official	5:b3b3370574cf	4165	tbl[3] = 0; /* Partition start cylinder */
mbed_official	5:b3b3370574cf	4166	tbl[4] = sys; /* System type */
mbed_official	5:b3b3370574cf	4167	tbl[5] = 254; /* Partition end head */
mbed_official	5:b3b3370574cf	4168	n = (b_vol + n_vol) / 63 / 255;
mbed_official	5:b3b3370574cf	4169	tbl[6] = (BYTE)(n >> 2 \| 63); /* Partition end sector */
mbed_official	5:b3b3370574cf	4170	tbl[7] = (BYTE)n; /* End cylinder */
mbed_official	5:b3b3370574cf	4171	ST_DWORD(tbl + 8, 63); /* Partition start in LBA */
mbed_official	5:b3b3370574cf	4172	ST_DWORD(tbl + 12, n_vol); /* Partition size in LBA */
mbed_official	5:b3b3370574cf	4173	ST_WORD(fs->win + BS_55AA, 0xAA55); /* MBR signature */
mbed_official	5:b3b3370574cf	4174	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR */
mbed_official	5:b3b3370574cf	4175	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4176	md = 0xF8;
mbed_official	5:b3b3370574cf	4177	}
mbed_official	5:b3b3370574cf	4178	}
mbed_official	5:b3b3370574cf	4179
mbed_official	5:b3b3370574cf	4180	/* Create BPB in the VBR */
mbed_official	5:b3b3370574cf	4181	tbl = fs->win; /* Clear sector */
mbed_official	5:b3b3370574cf	4182	mem_set(tbl, 0, SS(fs));
mbed_official	5:b3b3370574cf	4183	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
mbed_official	5:b3b3370574cf	4184	i = SS(fs); /* Sector size */
mbed_official	5:b3b3370574cf	4185	ST_WORD(tbl + BPB_BytsPerSec, i);
mbed_official	5:b3b3370574cf	4186	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
mbed_official	5:b3b3370574cf	4187	ST_WORD(tbl + BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
mbed_official	5:b3b3370574cf	4188	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
mbed_official	5:b3b3370574cf	4189	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of root directory entries */
mbed_official	5:b3b3370574cf	4190	ST_WORD(tbl + BPB_RootEntCnt, i);
mbed_official	5:b3b3370574cf	4191	if (n_vol < 0x10000) { /* Number of total sectors */
mbed_official	5:b3b3370574cf	4192	ST_WORD(tbl + BPB_TotSec16, n_vol);
mbed_official	5:b3b3370574cf	4193	} else {
mbed_official	5:b3b3370574cf	4194	ST_DWORD(tbl + BPB_TotSec32, n_vol);
mbed_official	5:b3b3370574cf	4195	}
mbed_official	5:b3b3370574cf	4196	tbl[BPB_Media] = md; /* Media descriptor */
mbed_official	5:b3b3370574cf	4197	ST_WORD(tbl + BPB_SecPerTrk, 63); /* Number of sectors per track */
mbed_official	5:b3b3370574cf	4198	ST_WORD(tbl + BPB_NumHeads, 255); /* Number of heads */
mbed_official	5:b3b3370574cf	4199	ST_DWORD(tbl + BPB_HiddSec, b_vol); /* Hidden sectors */
mbed_official	5:b3b3370574cf	4200	n = GET_FATTIME(); /* Use current time as VSN */
mbed_official	5:b3b3370574cf	4201	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4202	ST_DWORD(tbl + BS_VolID32, n); /* VSN */
mbed_official	5:b3b3370574cf	4203	ST_DWORD(tbl + BPB_FATSz32, n_fat); /* Number of sectors per FAT */
mbed_official	5:b3b3370574cf	4204	ST_DWORD(tbl + BPB_RootClus, 2); /* Root directory start cluster (2) */
mbed_official	5:b3b3370574cf	4205	ST_WORD(tbl + BPB_FSInfo, 1); /* FSINFO record offset (VBR + 1) */
mbed_official	5:b3b3370574cf	4206	ST_WORD(tbl + BPB_BkBootSec, 6); /* Backup boot record offset (VBR + 6) */
mbed_official	5:b3b3370574cf	4207	tbl[BS_DrvNum32] = 0x80; /* Drive number */
mbed_official	5:b3b3370574cf	4208	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
mbed_official	5:b3b3370574cf	4209	mem_cpy(tbl + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
mbed_official	5:b3b3370574cf	4210	} else {
mbed_official	5:b3b3370574cf	4211	ST_DWORD(tbl + BS_VolID, n); /* VSN */
mbed_official	5:b3b3370574cf	4212	ST_WORD(tbl + BPB_FATSz16, n_fat); /* Number of sectors per FAT */
mbed_official	5:b3b3370574cf	4213	tbl[BS_DrvNum] = 0x80; /* Drive number */
mbed_official	5:b3b3370574cf	4214	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
mbed_official	5:b3b3370574cf	4215	mem_cpy(tbl + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
mbed_official	5:b3b3370574cf	4216	}
mbed_official	5:b3b3370574cf	4217	ST_WORD(tbl + BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
mbed_official	5:b3b3370574cf	4218	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
mbed_official	5:b3b3370574cf	4219	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4220	if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR + 6) */
mbed_official	5:b3b3370574cf	4221	disk_write(pdrv, tbl, b_vol + 6, 1);
mbed_official	5:b3b3370574cf	4222
mbed_official	5:b3b3370574cf	4223	/* Initialize FAT area */
mbed_official	5:b3b3370574cf	4224	wsect = b_fat;
mbed_official	5:b3b3370574cf	4225	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
mbed_official	5:b3b3370574cf	4226	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
mbed_official	5:b3b3370574cf	4227	n = md; /* Media descriptor byte */
mbed_official	5:b3b3370574cf	4228	if (fmt != FS_FAT32) {
mbed_official	5:b3b3370574cf	4229	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
mbed_official	5:b3b3370574cf	4230	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT12/16) */
mbed_official	5:b3b3370574cf	4231	} else {
mbed_official	5:b3b3370574cf	4232	n \|= 0xFFFFFF00;
mbed_official	5:b3b3370574cf	4233	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT32) */
mbed_official	5:b3b3370574cf	4234	ST_DWORD(tbl + 4, 0xFFFFFFFF);
mbed_official	5:b3b3370574cf	4235	ST_DWORD(tbl + 8, 0x0FFFFFFF); /* Reserve cluster #2 for root directory */
mbed_official	5:b3b3370574cf	4236	}
mbed_official	5:b3b3370574cf	4237	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mbed_official	5:b3b3370574cf	4238	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4239	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
mbed_official	5:b3b3370574cf	4240	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	4241	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mbed_official	5:b3b3370574cf	4242	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4243	}
mbed_official	5:b3b3370574cf	4244	}
mbed_official	5:b3b3370574cf	4245
mbed_official	5:b3b3370574cf	4246	/* Initialize root directory */
mbed_official	5:b3b3370574cf	4247	i = (fmt == FS_FAT32) ? au : (UINT)n_dir;
mbed_official	5:b3b3370574cf	4248	do {
mbed_official	5:b3b3370574cf	4249	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mbed_official	5:b3b3370574cf	4250	return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4251	} while (--i);
mbed_official	5:b3b3370574cf	4252
mbed_official	5:b3b3370574cf	4253	#if _USE_TRIM /* Erase data area if needed */
mbed_official	5:b3b3370574cf	4254	{
mbed_official	5:b3b3370574cf	4255	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
mbed_official	5:b3b3370574cf	4256	disk_ioctl(pdrv, CTRL_TRIM, eb);
mbed_official	5:b3b3370574cf	4257	}
emilmont	1:46ce1e16c870	4258	#endif
emilmont	1:46ce1e16c870	4259
mbed_official	5:b3b3370574cf	4260	/* Create FSINFO if needed */
mbed_official	5:b3b3370574cf	4261	if (fmt == FS_FAT32) {
mbed_official	5:b3b3370574cf	4262	ST_DWORD(tbl + FSI_LeadSig, 0x41615252);
mbed_official	5:b3b3370574cf	4263	ST_DWORD(tbl + FSI_StrucSig, 0x61417272);
mbed_official	5:b3b3370574cf	4264	ST_DWORD(tbl + FSI_Free_Count, n_clst - 1); /* Number of free clusters */
mbed_official	5:b3b3370574cf	4265	ST_DWORD(tbl + FSI_Nxt_Free, 2); /* Last allocated cluster# */
mbed_official	5:b3b3370574cf	4266	ST_WORD(tbl + BS_55AA, 0xAA55);
mbed_official	5:b3b3370574cf	4267	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR + 1) */
mbed_official	5:b3b3370574cf	4268	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR + 7) */
mbed_official	5:b3b3370574cf	4269	}
mbed_official	5:b3b3370574cf	4270
mbed_official	5:b3b3370574cf	4271	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
emilmont	1:46ce1e16c870	4272	}
emilmont	1:46ce1e16c870	4273
emilmont	1:46ce1e16c870	4274
mbed_official	5:b3b3370574cf	4275
mbed_official	5:b3b3370574cf	4276	#if _MULTI_PARTITION
emilmont	1:46ce1e16c870	4277	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4278	/* Create partition table on the physical drive */
emilmont	1:46ce1e16c870	4279	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4280
emilmont	1:46ce1e16c870	4281	FRESULT f_fdisk (
mbed_official	5:b3b3370574cf	4282	BYTE pdrv, /* Physical drive number */
mbed_official	5:b3b3370574cf	4283	const DWORD szt[], /* Pointer to the size table for each partitions */
mbed_official	5:b3b3370574cf	4284	void* work /* Pointer to the working buffer */
emilmont	1:46ce1e16c870	4285	)
emilmont	1:46ce1e16c870	4286	{
mbed_official	5:b3b3370574cf	4287	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
mbed_official	5:b3b3370574cf	4288	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
mbed_official	5:b3b3370574cf	4289	DSTATUS stat;
mbed_official	5:b3b3370574cf	4290	DWORD sz_disk, sz_part, s_part;
mbed_official	5:b3b3370574cf	4291
mbed_official	5:b3b3370574cf	4292
mbed_official	5:b3b3370574cf	4293	stat = disk_initialize(pdrv);
mbed_official	5:b3b3370574cf	4294	if (stat & STA_NOINIT) return FR_NOT_READY;
mbed_official	5:b3b3370574cf	4295	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mbed_official	5:b3b3370574cf	4296	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
mbed_official	5:b3b3370574cf	4297
mbed_official	5:b3b3370574cf	4298	/* Determine CHS in the table regardless of the drive geometry */
mbed_official	5:b3b3370574cf	4299	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
mbed_official	5:b3b3370574cf	4300	if (n == 256) n--;
mbed_official	5:b3b3370574cf	4301	e_hd = n - 1;
mbed_official	5:b3b3370574cf	4302	sz_cyl = 63 * n;
mbed_official	5:b3b3370574cf	4303	tot_cyl = sz_disk / sz_cyl;
mbed_official	5:b3b3370574cf	4304
mbed_official	5:b3b3370574cf	4305	/* Create partition table */
mbed_official	5:b3b3370574cf	4306	mem_set(buf, 0, _MAX_SS);
mbed_official	5:b3b3370574cf	4307	p = buf + MBR_Table; b_cyl = 0;
mbed_official	5:b3b3370574cf	4308	for (i = 0; i < 4; i++, p += SZ_PTE) {
mbed_official	5:b3b3370574cf	4309	p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
mbed_official	5:b3b3370574cf	4310	if (!p_cyl) continue;
mbed_official	5:b3b3370574cf	4311	s_part = (DWORD)sz_cyl * b_cyl;
mbed_official	5:b3b3370574cf	4312	sz_part = (DWORD)sz_cyl * p_cyl;
mbed_official	5:b3b3370574cf	4313	if (i == 0) { /* Exclude first track of cylinder 0 */
mbed_official	5:b3b3370574cf	4314	s_hd = 1;
mbed_official	5:b3b3370574cf	4315	s_part += 63; sz_part -= 63;
mbed_official	5:b3b3370574cf	4316	} else {
mbed_official	5:b3b3370574cf	4317	s_hd = 0;
mbed_official	5:b3b3370574cf	4318	}
mbed_official	5:b3b3370574cf	4319	e_cyl = b_cyl + p_cyl - 1;
mbed_official	5:b3b3370574cf	4320	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
mbed_official	5:b3b3370574cf	4321
mbed_official	5:b3b3370574cf	4322	/* Set partition table */
mbed_official	5:b3b3370574cf	4323	p[1] = s_hd; /* Start head */
mbed_official	5:b3b3370574cf	4324	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
mbed_official	5:b3b3370574cf	4325	p[3] = (BYTE)b_cyl; /* Start cylinder */
mbed_official	5:b3b3370574cf	4326	p[4] = 0x06; /* System type (temporary setting) */
mbed_official	5:b3b3370574cf	4327	p[5] = e_hd; /* End head */
mbed_official	5:b3b3370574cf	4328	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
mbed_official	5:b3b3370574cf	4329	p[7] = (BYTE)e_cyl; /* End cylinder */
mbed_official	5:b3b3370574cf	4330	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
mbed_official	5:b3b3370574cf	4331	ST_DWORD(p + 12, sz_part); /* Partition size */
mbed_official	5:b3b3370574cf	4332
mbed_official	5:b3b3370574cf	4333	/* Next partition */
mbed_official	5:b3b3370574cf	4334	b_cyl += p_cyl;
mbed_official	5:b3b3370574cf	4335	}
mbed_official	5:b3b3370574cf	4336	ST_WORD(p, 0xAA55);
mbed_official	5:b3b3370574cf	4337
mbed_official	5:b3b3370574cf	4338	/* Write it to the MBR */
mbed_official	5:b3b3370574cf	4339	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	4340	}
emilmont	1:46ce1e16c870	4341
emilmont	1:46ce1e16c870	4342
mbed_official	5:b3b3370574cf	4343	#endif /* _MULTI_PARTITION */
emilmont	1:46ce1e16c870	4344	#endif /* _USE_MKFS && !_FS_READONLY */
emilmont	1:46ce1e16c870	4345
emilmont	1:46ce1e16c870	4346
emilmont	1:46ce1e16c870	4347
emilmont	1:46ce1e16c870	4348
emilmont	1:46ce1e16c870	4349	#if _USE_STRFUNC
emilmont	1:46ce1e16c870	4350	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4351	/* Get a string from the file */
emilmont	1:46ce1e16c870	4352	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4353
emilmont	1:46ce1e16c870	4354	TCHAR* f_gets (
mbed_official	5:b3b3370574cf	4355	TCHAR* buff, /* Pointer to the string buffer to read */
mbed_official	5:b3b3370574cf	4356	int len, /* Size of string buffer (characters) */
mbed_official	5:b3b3370574cf	4357	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	4358	)
emilmont	1:46ce1e16c870	4359	{
mbed_official	5:b3b3370574cf	4360	int n = 0;
mbed_official	5:b3b3370574cf	4361	TCHAR c, *p = buff;
mbed_official	5:b3b3370574cf	4362	BYTE s[2];
mbed_official	5:b3b3370574cf	4363	UINT rc;
mbed_official	5:b3b3370574cf	4364
mbed_official	5:b3b3370574cf	4365
mbed_official	5:b3b3370574cf	4366	while (n < len - 1) { /* Read characters until buffer gets filled */
mbed_official	5:b3b3370574cf	4367	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	4368	#if _STRF_ENCODE == 3 /* Read a character in UTF-8 */
mbed_official	5:b3b3370574cf	4369	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4370	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4371	c = s[0];
mbed_official	5:b3b3370574cf	4372	if (c >= 0x80) {
mbed_official	5:b3b3370574cf	4373	if (c < 0xC0) continue; /* Skip stray trailer */
mbed_official	5:b3b3370574cf	4374	if (c < 0xE0) { /* Two-byte sequence */
mbed_official	5:b3b3370574cf	4375	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4376	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4377	c = (c & 0x1F) << 6 \| (s[0] & 0x3F);
mbed_official	5:b3b3370574cf	4378	if (c < 0x80) c = '?';
mbed_official	5:b3b3370574cf	4379	} else {
mbed_official	5:b3b3370574cf	4380	if (c < 0xF0) { /* Three-byte sequence */
mbed_official	5:b3b3370574cf	4381	f_read(fp, s, 2, &rc);
mbed_official	5:b3b3370574cf	4382	if (rc != 2) break;
mbed_official	5:b3b3370574cf	4383	c = c << 12 \| (s[0] & 0x3F) << 6 \| (s[1] & 0x3F);
mbed_official	5:b3b3370574cf	4384	if (c < 0x800) c = '?';
mbed_official	5:b3b3370574cf	4385	} else { /* Reject four-byte sequence */
mbed_official	5:b3b3370574cf	4386	c = '?';
mbed_official	5:b3b3370574cf	4387	}
mbed_official	5:b3b3370574cf	4388	}
mbed_official	5:b3b3370574cf	4389	}
mbed_official	5:b3b3370574cf	4390	#elif _STRF_ENCODE == 2 /* Read a character in UTF-16BE */
mbed_official	5:b3b3370574cf	4391	f_read(fp, s, 2, &rc);
mbed_official	5:b3b3370574cf	4392	if (rc != 2) break;
mbed_official	5:b3b3370574cf	4393	c = s[1] + (s[0] << 8);
mbed_official	5:b3b3370574cf	4394	#elif _STRF_ENCODE == 1 /* Read a character in UTF-16LE */
mbed_official	5:b3b3370574cf	4395	f_read(fp, s, 2, &rc);
mbed_official	5:b3b3370574cf	4396	if (rc != 2) break;
mbed_official	5:b3b3370574cf	4397	c = s[0] + (s[1] << 8);
mbed_official	5:b3b3370574cf	4398	#else /* Read a character in ANSI/OEM */
mbed_official	5:b3b3370574cf	4399	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4400	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4401	c = s[0];
mbed_official	5:b3b3370574cf	4402	if (IsDBCS1(c)) {
mbed_official	5:b3b3370574cf	4403	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4404	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4405	c = (c << 8) + s[0];
mbed_official	5:b3b3370574cf	4406	}
mbed_official	5:b3b3370574cf	4407	c = ff_convert(c, 1); /* OEM -> Unicode */
mbed_official	5:b3b3370574cf	4408	if (!c) c = '?';
emilmont	1:46ce1e16c870	4409	#endif
mbed_official	5:b3b3370574cf	4410	#else /* Read a character without conversion */
mbed_official	5:b3b3370574cf	4411	f_read(fp, s, 1, &rc);
mbed_official	5:b3b3370574cf	4412	if (rc != 1) break;
mbed_official	5:b3b3370574cf	4413	c = s[0];
emilmont	1:46ce1e16c870	4414	#endif
mbed_official	5:b3b3370574cf	4415	if (_USE_STRFUNC == 2 && c == '\r') continue; /* Strip '\r' */
mbed_official	5:b3b3370574cf	4416	*p++ = c;
mbed_official	5:b3b3370574cf	4417	n++;
mbed_official	5:b3b3370574cf	4418	if (c == '\n') break; /* Break on EOL */
mbed_official	5:b3b3370574cf	4419	}
mbed_official	5:b3b3370574cf	4420	*p = 0;
mbed_official	5:b3b3370574cf	4421	return n ? buff : 0; /* When no data read (eof or error), return with error. */
emilmont	1:46ce1e16c870	4422	}
emilmont	1:46ce1e16c870	4423
emilmont	1:46ce1e16c870	4424
emilmont	1:46ce1e16c870	4425
mbed_official	5:b3b3370574cf	4426
emilmont	1:46ce1e16c870	4427	#if !_FS_READONLY
emilmont	1:46ce1e16c870	4428	#include <stdarg.h>
emilmont	1:46ce1e16c870	4429	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4430	/* Put a character to the file */
emilmont	1:46ce1e16c870	4431	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4432
mbed_official	5:b3b3370574cf	4433	typedef struct {
mbed_official	5:b3b3370574cf	4434	FIL* fp;
mbed_official	5:b3b3370574cf	4435	int idx, nchr;
mbed_official	5:b3b3370574cf	4436	BYTE buf[64];
mbed_official	5:b3b3370574cf	4437	} putbuff;
mbed_official	5:b3b3370574cf	4438
mbed_official	5:b3b3370574cf	4439
mbed_official	5:b3b3370574cf	4440	static
mbed_official	5:b3b3370574cf	4441	void putc_bfd (
mbed_official	5:b3b3370574cf	4442	putbuff* pb,
mbed_official	5:b3b3370574cf	4443	TCHAR c
emilmont	1:46ce1e16c870	4444	)
emilmont	1:46ce1e16c870	4445	{
mbed_official	5:b3b3370574cf	4446	UINT bw;
mbed_official	5:b3b3370574cf	4447	int i;
mbed_official	5:b3b3370574cf	4448
mbed_official	5:b3b3370574cf	4449
mbed_official	5:b3b3370574cf	4450	if (_USE_STRFUNC == 2 && c == '\n') /* LF -> CRLF conversion */
mbed_official	5:b3b3370574cf	4451	putc_bfd(pb, '\r');
mbed_official	5:b3b3370574cf	4452
mbed_official	5:b3b3370574cf	4453	i = pb->idx; /* Buffer write index (-1:error) */
mbed_official	5:b3b3370574cf	4454	if (i < 0) return;
mbed_official	5:b3b3370574cf	4455
mbed_official	5:b3b3370574cf	4456	#if _USE_LFN && _LFN_UNICODE
mbed_official	5:b3b3370574cf	4457	#if _STRF_ENCODE == 3 /* Write a character in UTF-8 */
mbed_official	5:b3b3370574cf	4458	if (c < 0x80) { /* 7-bit */
mbed_official	5:b3b3370574cf	4459	pb->buf[i++] = (BYTE)c;
mbed_official	5:b3b3370574cf	4460	} else {
mbed_official	5:b3b3370574cf	4461	if (c < 0x800) { /* 11-bit */
mbed_official	5:b3b3370574cf	4462	pb->buf[i++] = (BYTE)(0xC0 \| c >> 6);
mbed_official	5:b3b3370574cf	4463	} else { /* 16-bit */
mbed_official	5:b3b3370574cf	4464	pb->buf[i++] = (BYTE)(0xE0 \| c >> 12);
mbed_official	5:b3b3370574cf	4465	pb->buf[i++] = (BYTE)(0x80 \| (c >> 6 & 0x3F));
mbed_official	5:b3b3370574cf	4466	}
mbed_official	5:b3b3370574cf	4467	pb->buf[i++] = (BYTE)(0x80 \| (c & 0x3F));
mbed_official	5:b3b3370574cf	4468	}
mbed_official	5:b3b3370574cf	4469	#elif _STRF_ENCODE == 2 /* Write a character in UTF-16BE */
mbed_official	5:b3b3370574cf	4470	pb->buf[i++] = (BYTE)(c >> 8);
mbed_official	5:b3b3370574cf	4471	pb->buf[i++] = (BYTE)c;
mbed_official	5:b3b3370574cf	4472	#elif _STRF_ENCODE == 1 /* Write a character in UTF-16LE */
mbed_official	5:b3b3370574cf	4473	pb->buf[i++] = (BYTE)c;
mbed_official	5:b3b3370574cf	4474	pb->buf[i++] = (BYTE)(c >> 8);
mbed_official	5:b3b3370574cf	4475	#else /* Write a character in ANSI/OEM */
mbed_official	5:b3b3370574cf	4476	c = ff_convert(c, 0); /* Unicode -> OEM */
mbed_official	5:b3b3370574cf	4477	if (!c) c = '?';
mbed_official	5:b3b3370574cf	4478	if (c >= 0x100)
mbed_official	5:b3b3370574cf	4479	pb->buf[i++] = (BYTE)(c >> 8);
mbed_official	5:b3b3370574cf	4480	pb->buf[i++] = (BYTE)c;
emilmont	1:46ce1e16c870	4481	#endif
mbed_official	5:b3b3370574cf	4482	#else /* Write a character without conversion */
mbed_official	5:b3b3370574cf	4483	pb->buf[i++] = (BYTE)c;
emilmont	1:46ce1e16c870	4484	#endif
mbed_official	5:b3b3370574cf	4485
mbed_official	5:b3b3370574cf	4486	if (i >= (int)(sizeof pb->buf) - 3) { /* Write buffered characters to the file */
mbed_official	5:b3b3370574cf	4487	f_write(pb->fp, pb->buf, (UINT)i, &bw);
mbed_official	5:b3b3370574cf	4488	i = (bw == (UINT)i) ? 0 : -1;
mbed_official	5:b3b3370574cf	4489	}
mbed_official	5:b3b3370574cf	4490	pb->idx = i;
mbed_official	5:b3b3370574cf	4491	pb->nchr++;
mbed_official	5:b3b3370574cf	4492	}
mbed_official	5:b3b3370574cf	4493
mbed_official	5:b3b3370574cf	4494
mbed_official	5:b3b3370574cf	4495
mbed_official	5:b3b3370574cf	4496	int f_putc (
mbed_official	5:b3b3370574cf	4497	TCHAR c, /* A character to be output */
mbed_official	5:b3b3370574cf	4498	FIL* fp /* Pointer to the file object */
mbed_official	5:b3b3370574cf	4499	)
mbed_official	5:b3b3370574cf	4500	{
mbed_official	5:b3b3370574cf	4501	putbuff pb;
mbed_official	5:b3b3370574cf	4502	UINT nw;
mbed_official	5:b3b3370574cf	4503
mbed_official	5:b3b3370574cf	4504
mbed_official	5:b3b3370574cf	4505	pb.fp = fp; /* Initialize output buffer */
mbed_official	5:b3b3370574cf	4506	pb.nchr = pb.idx = 0;
mbed_official	5:b3b3370574cf	4507
mbed_official	5:b3b3370574cf	4508	putc_bfd(&pb, c); /* Put a character */
mbed_official	5:b3b3370574cf	4509
mbed_official	5:b3b3370574cf	4510	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mbed_official	5:b3b3370574cf	4511	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mbed_official	5:b3b3370574cf	4512	&& (UINT)pb.idx == nw) return pb.nchr;
mbed_official	5:b3b3370574cf	4513	return EOF;
emilmont	1:46ce1e16c870	4514	}
emilmont	1:46ce1e16c870	4515
emilmont	1:46ce1e16c870	4516
emilmont	1:46ce1e16c870	4517
emilmont	1:46ce1e16c870	4518
emilmont	1:46ce1e16c870	4519	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4520	/* Put a string to the file */
emilmont	1:46ce1e16c870	4521	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4522
emilmont	1:46ce1e16c870	4523	int f_puts (
mbed_official	5:b3b3370574cf	4524	const TCHAR* str, /* Pointer to the string to be output */
mbed_official	5:b3b3370574cf	4525	FIL* fp /* Pointer to the file object */
emilmont	1:46ce1e16c870	4526	)
emilmont	1:46ce1e16c870	4527	{
mbed_official	5:b3b3370574cf	4528	putbuff pb;
mbed_official	5:b3b3370574cf	4529	UINT nw;
mbed_official	5:b3b3370574cf	4530
mbed_official	5:b3b3370574cf	4531
mbed_official	5:b3b3370574cf	4532	pb.fp = fp; /* Initialize output buffer */
mbed_official	5:b3b3370574cf	4533	pb.nchr = pb.idx = 0;
mbed_official	5:b3b3370574cf	4534
mbed_official	5:b3b3370574cf	4535	while (str) / Put the string */
mbed_official	5:b3b3370574cf	4536	putc_bfd(&pb, *str++);
mbed_official	5:b3b3370574cf	4537
mbed_official	5:b3b3370574cf	4538	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mbed_official	5:b3b3370574cf	4539	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mbed_official	5:b3b3370574cf	4540	&& (UINT)pb.idx == nw) return pb.nchr;
mbed_official	5:b3b3370574cf	4541	return EOF;
emilmont	1:46ce1e16c870	4542	}
emilmont	1:46ce1e16c870	4543
emilmont	1:46ce1e16c870	4544
emilmont	1:46ce1e16c870	4545
emilmont	1:46ce1e16c870	4546
emilmont	1:46ce1e16c870	4547	/-----------------------------------------------------------------------/
emilmont	1:46ce1e16c870	4548	/* Put a formatted string to the file */
emilmont	1:46ce1e16c870	4549	/-----------------------------------------------------------------------/
mbed_official	5:b3b3370574cf	4550
emilmont	1:46ce1e16c870	4551	int f_printf (
mbed_official	5:b3b3370574cf	4552	FIL* fp, /* Pointer to the file object */
mbed_official	5:b3b3370574cf	4553	const TCHAR* fmt, /* Pointer to the format string */
mbed_official	5:b3b3370574cf	4554	... /* Optional arguments... */
emilmont	1:46ce1e16c870	4555	)
emilmont	1:46ce1e16c870	4556	{
mbed_official	5:b3b3370574cf	4557	va_list arp;
mbed_official	5:b3b3370574cf	4558	BYTE f, r;
mbed_official	5:b3b3370574cf	4559	UINT nw, i, j, w;
mbed_official	5:b3b3370574cf	4560	DWORD v;
mbed_official	5:b3b3370574cf	4561	TCHAR c, d, s[16], *p;
mbed_official	5:b3b3370574cf	4562	putbuff pb;
mbed_official	5:b3b3370574cf	4563
mbed_official	5:b3b3370574cf	4564
mbed_official	5:b3b3370574cf	4565	pb.fp = fp; /* Initialize output buffer */
mbed_official	5:b3b3370574cf	4566	pb.nchr = pb.idx = 0;
mbed_official	5:b3b3370574cf	4567
mbed_official	5:b3b3370574cf	4568	va_start(arp, fmt);
mbed_official	5:b3b3370574cf	4569
mbed_official	5:b3b3370574cf	4570	for (;;) {
mbed_official	5:b3b3370574cf	4571	c = *fmt++;
mbed_official	5:b3b3370574cf	4572	if (c == 0) break; /* End of string */
mbed_official	5:b3b3370574cf	4573	if (c != '%') { /* Non escape character */
mbed_official	5:b3b3370574cf	4574	putc_bfd(&pb, c);
mbed_official	5:b3b3370574cf	4575	continue;
mbed_official	5:b3b3370574cf	4576	}
mbed_official	5:b3b3370574cf	4577	w = f = 0;
mbed_official	5:b3b3370574cf	4578	c = *fmt++;
mbed_official	5:b3b3370574cf	4579	if (c == '0') { /* Flag: '0' padding */
mbed_official	5:b3b3370574cf	4580	f = 1; c = *fmt++;
mbed_official	5:b3b3370574cf	4581	} else {
mbed_official	5:b3b3370574cf	4582	if (c == '-') { /* Flag: left justified */
mbed_official	5:b3b3370574cf	4583	f = 2; c = *fmt++;
mbed_official	5:b3b3370574cf	4584	}
mbed_official	5:b3b3370574cf	4585	}
mbed_official	5:b3b3370574cf	4586	while (IsDigit(c)) { /* Precision */
mbed_official	5:b3b3370574cf	4587	w = w * 10 + c - '0';
mbed_official	5:b3b3370574cf	4588	c = *fmt++;
mbed_official	5:b3b3370574cf	4589	}
mbed_official	5:b3b3370574cf	4590	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
mbed_official	5:b3b3370574cf	4591	f \|= 4; c = *fmt++;
mbed_official	5:b3b3370574cf	4592	}
mbed_official	5:b3b3370574cf	4593	if (!c) break;
mbed_official	5:b3b3370574cf	4594	d = c;
mbed_official	5:b3b3370574cf	4595	if (IsLower(d)) d -= 0x20;
mbed_official	5:b3b3370574cf	4596	switch (d) { /* Type is... */
mbed_official	5:b3b3370574cf	4597	case 'S' : /* String */
mbed_official	5:b3b3370574cf	4598	p = va_arg(arp, TCHAR*);
mbed_official	5:b3b3370574cf	4599	for (j = 0; p[j]; j++) ;
mbed_official	5:b3b3370574cf	4600	if (!(f & 2)) {
mbed_official	5:b3b3370574cf	4601	while (j++ < w) putc_bfd(&pb, ' ');
mbed_official	5:b3b3370574cf	4602	}
mbed_official	5:b3b3370574cf	4603	while (p) putc_bfd(&pb, p++);
mbed_official	5:b3b3370574cf	4604	while (j++ < w) putc_bfd(&pb, ' ');
mbed_official	5:b3b3370574cf	4605	continue;
mbed_official	5:b3b3370574cf	4606	case 'C' : /* Character */
mbed_official	5:b3b3370574cf	4607	putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue;
mbed_official	5:b3b3370574cf	4608	case 'B' : /* Binary */
mbed_official	5:b3b3370574cf	4609	r = 2; break;
mbed_official	5:b3b3370574cf	4610	case 'O' : /* Octal */
mbed_official	5:b3b3370574cf	4611	r = 8; break;
mbed_official	5:b3b3370574cf	4612	case 'D' : /* Signed decimal */
mbed_official	5:b3b3370574cf	4613	case 'U' : /* Unsigned decimal */
mbed_official	5:b3b3370574cf	4614	r = 10; break;
mbed_official	5:b3b3370574cf	4615	case 'X' : /* Hexdecimal */
mbed_official	5:b3b3370574cf	4616	r = 16; break;
mbed_official	5:b3b3370574cf	4617	default: /* Unknown type (pass-through) */
mbed_official	5:b3b3370574cf	4618	putc_bfd(&pb, c); continue;
mbed_official	5:b3b3370574cf	4619	}
mbed_official	5:b3b3370574cf	4620
mbed_official	5:b3b3370574cf	4621	/* Get an argument and put it in numeral */
mbed_official	5:b3b3370574cf	4622	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	4623	if (d == 'D' && (v & 0x80000000)) {
mbed_official	5:b3b3370574cf	4624	v = 0 - v;
mbed_official	5:b3b3370574cf	4625	f \|= 8;
mbed_official	5:b3b3370574cf	4626	}
mbed_official	5:b3b3370574cf	4627	i = 0;
mbed_official	5:b3b3370574cf	4628	do {
mbed_official	5:b3b3370574cf	4629	d = (TCHAR)(v % r); v /= r;
mbed_official	5:b3b3370574cf	4630	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
mbed_official	5:b3b3370574cf	4631	s[i++] = d + '0';
mbed_official	5:b3b3370574cf	4632	} while (v && i < sizeof s / sizeof s[0]);
mbed_official	5:b3b3370574cf	4633	if (f & 8) s[i++] = '-';
mbed_official	5:b3b3370574cf	4634	j = i; d = (f & 1) ? '0' : ' ';
mbed_official	5:b3b3370574cf	4635	while (!(f & 2) && j++ < w) putc_bfd(&pb, d);
mbed_official	5:b3b3370574cf	4636	do putc_bfd(&pb, s[--i]); while (i);
mbed_official	5:b3b3370574cf	4637	while (j++ < w) putc_bfd(&pb, d);
mbed_official	5:b3b3370574cf	4638	}
mbed_official	5:b3b3370574cf	4639
mbed_official	5:b3b3370574cf	4640	va_end(arp);
mbed_official	5:b3b3370574cf	4641
mbed_official	5:b3b3370574cf	4642	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mbed_official	5:b3b3370574cf	4643	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mbed_official	5:b3b3370574cf	4644	&& (UINT)pb.idx == nw) return pb.nchr;
mbed_official	5:b3b3370574cf	4645	return EOF;
emilmont	1:46ce1e16c870	4646	}
emilmont	1:46ce1e16c870	4647
emilmont	1:46ce1e16c870	4648	#endif /* !_FS_READONLY */
emilmont	1:46ce1e16c870	4649	#endif /* _USE_STRFUNC */
mbed_official	5:b3b3370574cf	4650

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Type:	Library
Created:	14 Jul 2016
Imports:	1
Forks:	0
Commits:	9
Dependents:	1
Dependencies:	0
Followers:	3

ChaN/ff.cpp@5:b3b3370574cf, 2015-08-13 (annotated)

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