COMPACT_FLASH_2 -

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Eli Hughes / Mbed 2 deprecated COMPACT_FLASH_2

FAT_FS/ff.c@0:76427232f435, 2012-02-16 (annotated)

Committer:: emh203
Date:: Thu Feb 16 00:41:26 2012 +0000
Revision:: 0:76427232f435

Who changed what in which revision?

User	Revision	Line number	New contents of line
emh203	0:76427232f435	1
emh203	0:76427232f435	2
emh203	0:76427232f435	3	/*----------------------------------------------------------------------------/
emh203	0:76427232f435	4	/ FatFs - FAT file system module R0.09 (C)ChaN, 2011
emh203	0:76427232f435	5	/-----------------------------------------------------------------------------/
emh203	0:76427232f435	6	/ FatFs module is a generic FAT file system module for small embedded systems.
emh203	0:76427232f435	7	/ This is a free software that opened for education, research and commercial
emh203	0:76427232f435	8	/ developments under license policy of following terms.
emh203	0:76427232f435	9	/
emh203	0:76427232f435	10	/ Copyright (C) 2011, ChaN, all right reserved.
emh203	0:76427232f435	11	/
emh203	0:76427232f435	12	/ * The FatFs module is a free software and there is NO WARRANTY.
emh203	0:76427232f435	13	/ * No restriction on use. You can use, modify and redistribute it for
emh203	0:76427232f435	14	/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
emh203	0:76427232f435	15	/ * Redistributions of source code must retain the above copyright notice.
emh203	0:76427232f435	16	/
emh203	0:76427232f435	17	/-----------------------------------------------------------------------------/
emh203	0:76427232f435	18	/ Feb 26,'06 R0.00 Prototype.
emh203	0:76427232f435	19	/
emh203	0:76427232f435	20	/ Apr 29,'06 R0.01 First stable version.
emh203	0:76427232f435	21	/
emh203	0:76427232f435	22	/ Jun 01,'06 R0.02 Added FAT12 support.
emh203	0:76427232f435	23	/ Removed unbuffered mode.
emh203	0:76427232f435	24	/ Fixed a problem on small (<32M) partition.
emh203	0:76427232f435	25	/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
emh203	0:76427232f435	26	/
emh203	0:76427232f435	27	/ Sep 22,'06 R0.03 Added f_rename().
emh203	0:76427232f435	28	/ Changed option _FS_MINIMUM to _FS_MINIMIZE.
emh203	0:76427232f435	29	/ Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
emh203	0:76427232f435	30	/ Fixed f_mkdir() creates incorrect directory on FAT32.
emh203	0:76427232f435	31	/
emh203	0:76427232f435	32	/ Feb 04,'07 R0.04 Supported multiple drive system.
emh203	0:76427232f435	33	/ Changed some interfaces for multiple drive system.
emh203	0:76427232f435	34	/ Changed f_mountdrv() to f_mount().
emh203	0:76427232f435	35	/ Added f_mkfs().
emh203	0:76427232f435	36	/ Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
emh203	0:76427232f435	37	/ Added a capability of extending file size to f_lseek().
emh203	0:76427232f435	38	/ Added minimization level 3.
emh203	0:76427232f435	39	/ Fixed an endian sensitive code in f_mkfs().
emh203	0:76427232f435	40	/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
emh203	0:76427232f435	41	/ Added FSInfo support.
emh203	0:76427232f435	42	/ Fixed DBCS name can result FR_INVALID_NAME.
emh203	0:76427232f435	43	/ Fixed short seek (<= csize) collapses the file object.
emh203	0:76427232f435	44	/
emh203	0:76427232f435	45	/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
emh203	0:76427232f435	46	/ Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
emh203	0:76427232f435	47	/ Fixed f_mkdir() on FAT32 creates incorrect directory.
emh203	0:76427232f435	48	/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
emh203	0:76427232f435	49	/ Fixed off by one error at FAT sub-type determination.
emh203	0:76427232f435	50	/ Fixed btr in f_read() can be mistruncated.
emh203	0:76427232f435	51	/ Fixed cached sector is not flushed when create and close without write.
emh203	0:76427232f435	52	/
emh203	0:76427232f435	53	/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
emh203	0:76427232f435	54	/ Improved performance of f_lseek() on moving to the same or following cluster.
emh203	0:76427232f435	55	/
emh203	0:76427232f435	56	/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
emh203	0:76427232f435	57	/ Added long file name feature.
emh203	0:76427232f435	58	/ Added multiple code page feature.
emh203	0:76427232f435	59	/ Added re-entrancy for multitask operation.
emh203	0:76427232f435	60	/ Added auto cluster size selection to f_mkfs().
emh203	0:76427232f435	61	/ Added rewind option to f_readdir().
emh203	0:76427232f435	62	/ Changed result code of critical errors.
emh203	0:76427232f435	63	/ Renamed string functions to avoid name collision.
emh203	0:76427232f435	64	/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
emh203	0:76427232f435	65	/ Added multiple sector size feature.
emh203	0:76427232f435	66	/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
emh203	0:76427232f435	67	/ Fixed wrong cache control in f_lseek().
emh203	0:76427232f435	68	/ Added relative path feature.
emh203	0:76427232f435	69	/ Added f_chdir() and f_chdrive().
emh203	0:76427232f435	70	/ Added proper case conversion to extended char.
emh203	0:76427232f435	71	/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
emh203	0:76427232f435	72	/ Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
emh203	0:76427232f435	73	/ Fixed name matching error on the 13 char boundary.
emh203	0:76427232f435	74	/ Added a configuration option, _LFN_UNICODE.
emh203	0:76427232f435	75	/ Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
emh203	0:76427232f435	76	/
emh203	0:76427232f435	77	/ May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
emh203	0:76427232f435	78	/ Added file lock feature. (_FS_SHARE)
emh203	0:76427232f435	79	/ Added fast seek feature. (_USE_FASTSEEK)
emh203	0:76427232f435	80	/ Changed some types on the API, XCHAR->TCHAR.
emh203	0:76427232f435	81	/ Changed fname member in the FILINFO structure on Unicode cfg.
emh203	0:76427232f435	82	/ String functions support UTF-8 encoding files on Unicode cfg.
emh203	0:76427232f435	83	/ Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
emh203	0:76427232f435	84	/ Added sector erase feature. (_USE_ERASE)
emh203	0:76427232f435	85	/ Moved file lock semaphore table from fs object to the bss.
emh203	0:76427232f435	86	/ Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
emh203	0:76427232f435	87	/ Fixed f_mkfs() creates wrong FAT32 volume.
emh203	0:76427232f435	88	/ Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
emh203	0:76427232f435	89	/ f_lseek() reports required table size on creating CLMP.
emh203	0:76427232f435	90	/ Extended format syntax of f_printf function.
emh203	0:76427232f435	91	/ Ignores duplicated directory separators in given path names.
emh203	0:76427232f435	92	/
emh203	0:76427232f435	93	/ Sep 06,'11 R0.09 f_mkfs() supports multiple partition to finish the multiple partition feature.
emh203	0:76427232f435	94	/ Added f_fdisk(). (_MULTI_PARTITION = 2)
emh203	0:76427232f435	95	/---------------------------------------------------------------------------*/
emh203	0:76427232f435	96
emh203	0:76427232f435	97	#include "ff.h" /* FatFs configurations and declarations */
emh203	0:76427232f435	98	#include "diskio.h" /* Declarations of low level disk I/O functions */
emh203	0:76427232f435	99
emh203	0:76427232f435	100
emh203	0:76427232f435	101	/*--------------------------------------------------------------------------
emh203	0:76427232f435	102
emh203	0:76427232f435	103	Module Private Definitions
emh203	0:76427232f435	104
emh203	0:76427232f435	105	---------------------------------------------------------------------------*/
emh203	0:76427232f435	106
emh203	0:76427232f435	107	#if _FATFS != 6502 /* Revision ID */
emh203	0:76427232f435	108	#error Wrong include file (ff.h).
emh203	0:76427232f435	109	#endif
emh203	0:76427232f435	110
emh203	0:76427232f435	111
emh203	0:76427232f435	112	/* Definitions on sector size */
emh203	0:76427232f435	113	#if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
emh203	0:76427232f435	114	#error Wrong sector size.
emh203	0:76427232f435	115	#endif
emh203	0:76427232f435	116	#if _MAX_SS != 512
emh203	0:76427232f435	117	#define SS(fs) ((fs)->ssize) /* Variable sector size */
emh203	0:76427232f435	118	#else
emh203	0:76427232f435	119	#define SS(fs) 512U /* Fixed sector size */
emh203	0:76427232f435	120	#endif
emh203	0:76427232f435	121
emh203	0:76427232f435	122
emh203	0:76427232f435	123	/* Reentrancy related */
emh203	0:76427232f435	124	#if _FS_REENTRANT
emh203	0:76427232f435	125	#if _USE_LFN == 1
emh203	0:76427232f435	126	#error Static LFN work area must not be used in re-entrant configuration.
emh203	0:76427232f435	127	#endif
emh203	0:76427232f435	128	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
emh203	0:76427232f435	129	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
emh203	0:76427232f435	130	#else
emh203	0:76427232f435	131	#define ENTER_FF(fs)
emh203	0:76427232f435	132	#define LEAVE_FF(fs, res) return res
emh203	0:76427232f435	133	#endif
emh203	0:76427232f435	134
emh203	0:76427232f435	135	#define ABORT(fs, res) { fp->flag \|= FA__ERROR; LEAVE_FF(fs, res); }
emh203	0:76427232f435	136
emh203	0:76427232f435	137
emh203	0:76427232f435	138	/* File shareing feature */
emh203	0:76427232f435	139	#if _FS_SHARE
emh203	0:76427232f435	140	#if _FS_READONLY
emh203	0:76427232f435	141	#error _FS_SHARE must be 0 on read-only cfg.
emh203	0:76427232f435	142	#endif
emh203	0:76427232f435	143	typedef struct {
emh203	0:76427232f435	144	FATFS fs; / File ID 1, volume (NULL:blank entry) */
emh203	0:76427232f435	145	DWORD clu; /* File ID 2, directory */
emh203	0:76427232f435	146	WORD idx; /* File ID 3, directory index */
emh203	0:76427232f435	147	WORD ctr; /* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:write mode */
emh203	0:76427232f435	148	} FILESEM;
emh203	0:76427232f435	149	#endif
emh203	0:76427232f435	150
emh203	0:76427232f435	151
emh203	0:76427232f435	152	/* Misc definitions */
emh203	0:76427232f435	153	#define LD_CLUST(dir) (((DWORD)LD_WORD(dir+DIR_FstClusHI)<<16) \| LD_WORD(dir+DIR_FstClusLO))
emh203	0:76427232f435	154	#define ST_CLUST(dir,cl) {ST_WORD(dir+DIR_FstClusLO, cl); ST_WORD(dir+DIR_FstClusHI, (DWORD)cl>>16);}
emh203	0:76427232f435	155
emh203	0:76427232f435	156
emh203	0:76427232f435	157	/* DBCS code ranges and SBCS extend char conversion table */
emh203	0:76427232f435	158
emh203	0:76427232f435	159	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
emh203	0:76427232f435	160	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
emh203	0:76427232f435	161	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
emh203	0:76427232f435	162	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
emh203	0:76427232f435	163	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
emh203	0:76427232f435	164	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
emh203	0:76427232f435	165	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
emh203	0:76427232f435	166	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
emh203	0:76427232f435	167	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
emh203	0:76427232f435	168
emh203	0:76427232f435	169	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
emh203	0:76427232f435	170	#define _DF1S 0x81
emh203	0:76427232f435	171	#define _DF1E 0xFE
emh203	0:76427232f435	172	#define _DS1S 0x40
emh203	0:76427232f435	173	#define _DS1E 0x7E
emh203	0:76427232f435	174	#define _DS2S 0x80
emh203	0:76427232f435	175	#define _DS2E 0xFE
emh203	0:76427232f435	176
emh203	0:76427232f435	177	#elif _CODE_PAGE == 949 /* Korean */
emh203	0:76427232f435	178	#define _DF1S 0x81
emh203	0:76427232f435	179	#define _DF1E 0xFE
emh203	0:76427232f435	180	#define _DS1S 0x41
emh203	0:76427232f435	181	#define _DS1E 0x5A
emh203	0:76427232f435	182	#define _DS2S 0x61
emh203	0:76427232f435	183	#define _DS2E 0x7A
emh203	0:76427232f435	184	#define _DS3S 0x81
emh203	0:76427232f435	185	#define _DS3E 0xFE
emh203	0:76427232f435	186
emh203	0:76427232f435	187	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
emh203	0:76427232f435	188	#define _DF1S 0x81
emh203	0:76427232f435	189	#define _DF1E 0xFE
emh203	0:76427232f435	190	#define _DS1S 0x40
emh203	0:76427232f435	191	#define _DS1E 0x7E
emh203	0:76427232f435	192	#define _DS2S 0xA1
emh203	0:76427232f435	193	#define _DS2E 0xFE
emh203	0:76427232f435	194
emh203	0:76427232f435	195	#elif _CODE_PAGE == 437 /* U.S. (OEM) */
emh203	0:76427232f435	196	#define _DF1S 0
emh203	0:76427232f435	197	#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, \
emh203	0:76427232f435	198	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, \
emh203	0:76427232f435	199	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, \
emh203	0:76427232f435	200	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}
emh203	0:76427232f435	201
emh203	0:76427232f435	202	#elif _CODE_PAGE == 720 /* Arabic (OEM) */
emh203	0:76427232f435	203	#define _DF1S 0
emh203	0:76427232f435	204	#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, \
emh203	0:76427232f435	205	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, \
emh203	0:76427232f435	206	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, \
emh203	0:76427232f435	207	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}
emh203	0:76427232f435	208
emh203	0:76427232f435	209	#elif _CODE_PAGE == 737 /* Greek (OEM) */
emh203	0:76427232f435	210	#define _DF1S 0
emh203	0:76427232f435	211	#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, \
emh203	0:76427232f435	212	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, \
emh203	0:76427232f435	213	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, \
emh203	0:76427232f435	214	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}
emh203	0:76427232f435	215
emh203	0:76427232f435	216	#elif _CODE_PAGE == 775 /* Baltic (OEM) */
emh203	0:76427232f435	217	#define _DF1S 0
emh203	0:76427232f435	218	#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, \
emh203	0:76427232f435	219	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, \
emh203	0:76427232f435	220	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, \
emh203	0:76427232f435	221	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}
emh203	0:76427232f435	222
emh203	0:76427232f435	223	#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
emh203	0:76427232f435	224	#define _DF1S 0
emh203	0:76427232f435	225	#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, \
emh203	0:76427232f435	226	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, \
emh203	0:76427232f435	227	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, \
emh203	0:76427232f435	228	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}
emh203	0:76427232f435	229
emh203	0:76427232f435	230	#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
emh203	0:76427232f435	231	#define _DF1S 0
emh203	0:76427232f435	232	#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, \
emh203	0:76427232f435	233	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, \
emh203	0:76427232f435	234	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, \
emh203	0:76427232f435	235	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}
emh203	0:76427232f435	236
emh203	0:76427232f435	237	#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
emh203	0:76427232f435	238	#define _DF1S 0
emh203	0:76427232f435	239	#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, \
emh203	0:76427232f435	240	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, \
emh203	0:76427232f435	241	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, \
emh203	0:76427232f435	242	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}
emh203	0:76427232f435	243
emh203	0:76427232f435	244	#elif _CODE_PAGE == 857 /* Turkish (OEM) */
emh203	0:76427232f435	245	#define _DF1S 0
emh203	0:76427232f435	246	#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, \
emh203	0:76427232f435	247	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, \
emh203	0:76427232f435	248	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, \
emh203	0:76427232f435	249	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}
emh203	0:76427232f435	250
emh203	0:76427232f435	251	#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
emh203	0:76427232f435	252	#define _DF1S 0
emh203	0:76427232f435	253	#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, \
emh203	0:76427232f435	254	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, \
emh203	0:76427232f435	255	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, \
emh203	0:76427232f435	256	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}
emh203	0:76427232f435	257
emh203	0:76427232f435	258	#elif _CODE_PAGE == 862 /* Hebrew (OEM) */
emh203	0:76427232f435	259	#define _DF1S 0
emh203	0:76427232f435	260	#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, \
emh203	0:76427232f435	261	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, \
emh203	0:76427232f435	262	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, \
emh203	0:76427232f435	263	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}
emh203	0:76427232f435	264
emh203	0:76427232f435	265	#elif _CODE_PAGE == 866 /* Russian (OEM) */
emh203	0:76427232f435	266	#define _DF1S 0
emh203	0:76427232f435	267	#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, \
emh203	0:76427232f435	268	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, \
emh203	0:76427232f435	269	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, \
emh203	0:76427232f435	270	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}
emh203	0:76427232f435	271
emh203	0:76427232f435	272	#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
emh203	0:76427232f435	273	#define _DF1S 0
emh203	0:76427232f435	274	#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, \
emh203	0:76427232f435	275	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, \
emh203	0:76427232f435	276	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, \
emh203	0:76427232f435	277	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}
emh203	0:76427232f435	278
emh203	0:76427232f435	279	#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
emh203	0:76427232f435	280	#define _DF1S 0
emh203	0:76427232f435	281	#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, \
emh203	0:76427232f435	282	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, \
emh203	0:76427232f435	283	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, \
emh203	0:76427232f435	284	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}
emh203	0:76427232f435	285
emh203	0:76427232f435	286	#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
emh203	0:76427232f435	287	#define _DF1S 0
emh203	0:76427232f435	288	#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, \
emh203	0:76427232f435	289	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, \
emh203	0:76427232f435	290	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, \
emh203	0:76427232f435	291	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}
emh203	0:76427232f435	292
emh203	0:76427232f435	293	#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
emh203	0:76427232f435	294	#define _DF1S 0
emh203	0:76427232f435	295	#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, \
emh203	0:76427232f435	296	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, \
emh203	0:76427232f435	297	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, \
emh203	0:76427232f435	298	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}
emh203	0:76427232f435	299
emh203	0:76427232f435	300	#elif _CODE_PAGE == 1253 /* Greek (Windows) */
emh203	0:76427232f435	301	#define _DF1S 0
emh203	0:76427232f435	302	#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, \
emh203	0:76427232f435	303	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, \
emh203	0:76427232f435	304	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, \
emh203	0:76427232f435	305	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}
emh203	0:76427232f435	306
emh203	0:76427232f435	307	#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
emh203	0:76427232f435	308	#define _DF1S 0
emh203	0:76427232f435	309	#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, \
emh203	0:76427232f435	310	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, \
emh203	0:76427232f435	311	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, \
emh203	0:76427232f435	312	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}
emh203	0:76427232f435	313
emh203	0:76427232f435	314	#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
emh203	0:76427232f435	315	#define _DF1S 0
emh203	0:76427232f435	316	#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, \
emh203	0:76427232f435	317	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, \
emh203	0:76427232f435	318	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, \
emh203	0:76427232f435	319	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}
emh203	0:76427232f435	320
emh203	0:76427232f435	321	#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
emh203	0:76427232f435	322	#define _DF1S 0
emh203	0:76427232f435	323	#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, \
emh203	0:76427232f435	324	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, \
emh203	0:76427232f435	325	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, \
emh203	0:76427232f435	326	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}
emh203	0:76427232f435	327
emh203	0:76427232f435	328	#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
emh203	0:76427232f435	329	#define _DF1S 0
emh203	0:76427232f435	330	#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, \
emh203	0:76427232f435	331	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, \
emh203	0:76427232f435	332	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, \
emh203	0:76427232f435	333	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}
emh203	0:76427232f435	334
emh203	0:76427232f435	335	#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
emh203	0:76427232f435	336	#define _DF1S 0
emh203	0:76427232f435	337	#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, \
emh203	0:76427232f435	338	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, \
emh203	0:76427232f435	339	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, \
emh203	0:76427232f435	340	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}
emh203	0:76427232f435	341
emh203	0:76427232f435	342	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
emh203	0:76427232f435	343	#if _USE_LFN
emh203	0:76427232f435	344	#error Cannot use LFN feature without valid code page.
emh203	0:76427232f435	345	#endif
emh203	0:76427232f435	346	#define _DF1S 0
emh203	0:76427232f435	347
emh203	0:76427232f435	348	#else
emh203	0:76427232f435	349	#error Unknown code page
emh203	0:76427232f435	350
emh203	0:76427232f435	351	#endif
emh203	0:76427232f435	352
emh203	0:76427232f435	353
emh203	0:76427232f435	354	/* Character code support macros */
emh203	0:76427232f435	355	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
emh203	0:76427232f435	356	#define IsLower(c) (((c)>='a')&&((c)<='z'))
emh203	0:76427232f435	357	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
emh203	0:76427232f435	358
emh203	0:76427232f435	359	#if _DF1S /* Code page is DBCS */
emh203	0:76427232f435	360
emh203	0:76427232f435	361	#ifdef _DF2S /* Two 1st byte areas */
emh203	0:76427232f435	362	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
emh203	0:76427232f435	363	#else /* One 1st byte area */
emh203	0:76427232f435	364	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
emh203	0:76427232f435	365	#endif
emh203	0:76427232f435	366
emh203	0:76427232f435	367	#ifdef _DS3S /* Three 2nd byte areas */
emh203	0:76427232f435	368	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
emh203	0:76427232f435	369	#else /* Two 2nd byte areas */
emh203	0:76427232f435	370	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
emh203	0:76427232f435	371	#endif
emh203	0:76427232f435	372
emh203	0:76427232f435	373	#else /* Code page is SBCS */
emh203	0:76427232f435	374
emh203	0:76427232f435	375	#define IsDBCS1(c) 0
emh203	0:76427232f435	376	#define IsDBCS2(c) 0
emh203	0:76427232f435	377
emh203	0:76427232f435	378	#endif /* _DF1S */
emh203	0:76427232f435	379
emh203	0:76427232f435	380
emh203	0:76427232f435	381	/* Name status flags */
emh203	0:76427232f435	382	#define NS 11 /* Index of name status byte in fn[] */
emh203	0:76427232f435	383	#define NS_LOSS 0x01 /* Out of 8.3 format */
emh203	0:76427232f435	384	#define NS_LFN 0x02 /* Force to create LFN entry */
emh203	0:76427232f435	385	#define NS_LAST 0x04 /* Last segment */
emh203	0:76427232f435	386	#define NS_BODY 0x08 /* Lower case flag (body) */
emh203	0:76427232f435	387	#define NS_EXT 0x10 /* Lower case flag (ext) */
emh203	0:76427232f435	388	#define NS_DOT 0x20 /* Dot entry */
emh203	0:76427232f435	389
emh203	0:76427232f435	390
emh203	0:76427232f435	391	/* FAT sub-type boundaries */
emh203	0:76427232f435	392	/* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */
emh203	0:76427232f435	393	#define MIN_FAT16 4086 /* Minimum number of clusters for FAT16 */
emh203	0:76427232f435	394	#define MIN_FAT32 65526 /* Minimum number of clusters for FAT32 */
emh203	0:76427232f435	395
emh203	0:76427232f435	396
emh203	0:76427232f435	397	/* FatFs refers the members in the FAT structures as byte array instead of
emh203	0:76427232f435	398	/ structure member because the structure is not binary compatible between
emh203	0:76427232f435	399	/ different platforms */
emh203	0:76427232f435	400
emh203	0:76427232f435	401	#define BS_jmpBoot 0 /* Jump instruction (3) */
emh203	0:76427232f435	402	#define BS_OEMName 3 /* OEM name (8) */
emh203	0:76427232f435	403	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
emh203	0:76427232f435	404	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
emh203	0:76427232f435	405	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
emh203	0:76427232f435	406	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
emh203	0:76427232f435	407	#define BPB_RootEntCnt 17 /* Number of root dir entries for FAT12/16 (2) */
emh203	0:76427232f435	408	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
emh203	0:76427232f435	409	#define BPB_Media 21 /* Media descriptor (1) */
emh203	0:76427232f435	410	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
emh203	0:76427232f435	411	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
emh203	0:76427232f435	412	#define BPB_NumHeads 26 /* Number of heads (2) */
emh203	0:76427232f435	413	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
emh203	0:76427232f435	414	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
emh203	0:76427232f435	415	#define BS_DrvNum 36 /* Physical drive number (2) */
emh203	0:76427232f435	416	#define BS_BootSig 38 /* Extended boot signature (1) */
emh203	0:76427232f435	417	#define BS_VolID 39 /* Volume serial number (4) */
emh203	0:76427232f435	418	#define BS_VolLab 43 /* Volume label (8) */
emh203	0:76427232f435	419	#define BS_FilSysType 54 /* File system type (1) */
emh203	0:76427232f435	420	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
emh203	0:76427232f435	421	#define BPB_ExtFlags 40 /* Extended flags (2) */
emh203	0:76427232f435	422	#define BPB_FSVer 42 /* File system version (2) */
emh203	0:76427232f435	423	#define BPB_RootClus 44 /* Root dir first cluster (4) */
emh203	0:76427232f435	424	#define BPB_FSInfo 48 /* Offset of FSInfo sector (2) */
emh203	0:76427232f435	425	#define BPB_BkBootSec 50 /* Offset of backup boot sectot (2) */
emh203	0:76427232f435	426	#define BS_DrvNum32 64 /* Physical drive number (2) */
emh203	0:76427232f435	427	#define BS_BootSig32 66 /* Extended boot signature (1) */
emh203	0:76427232f435	428	#define BS_VolID32 67 /* Volume serial number (4) */
emh203	0:76427232f435	429	#define BS_VolLab32 71 /* Volume label (8) */
emh203	0:76427232f435	430	#define BS_FilSysType32 82 /* File system type (1) */
emh203	0:76427232f435	431	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
emh203	0:76427232f435	432	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
emh203	0:76427232f435	433	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
emh203	0:76427232f435	434	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
emh203	0:76427232f435	435	#define MBR_Table 446 /* MBR: Partition table offset (2) */
emh203	0:76427232f435	436	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
emh203	0:76427232f435	437	#define BS_55AA 510 /* Boot sector signature (2) */
emh203	0:76427232f435	438
emh203	0:76427232f435	439	#define DIR_Name 0 /* Short file name (11) */
emh203	0:76427232f435	440	#define DIR_Attr 11 /* Attribute (1) */
emh203	0:76427232f435	441	#define DIR_NTres 12 /* NT flag (1) */
emh203	0:76427232f435	442	#define DIR_CrtTime 14 /* Created time (2) */
emh203	0:76427232f435	443	#define DIR_CrtDate 16 /* Created date (2) */
emh203	0:76427232f435	444	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
emh203	0:76427232f435	445	#define DIR_WrtTime 22 /* Modified time (2) */
emh203	0:76427232f435	446	#define DIR_WrtDate 24 /* Modified date (2) */
emh203	0:76427232f435	447	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
emh203	0:76427232f435	448	#define DIR_FileSize 28 /* File size (4) */
emh203	0:76427232f435	449	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
emh203	0:76427232f435	450	#define LDIR_Attr 11 /* LFN attribute (1) */
emh203	0:76427232f435	451	#define LDIR_Type 12 /* LFN type (1) */
emh203	0:76427232f435	452	#define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
emh203	0:76427232f435	453	#define LDIR_FstClusLO 26 /* Filled by zero (0) */
emh203	0:76427232f435	454	#define SZ_DIR 32 /* Size of a directory entry */
emh203	0:76427232f435	455	#define LLE 0x40 /* Last long entry flag in LDIR_Ord */
emh203	0:76427232f435	456	#define DDE 0xE5 /* Deleted directory enrty mark in DIR_Name[0] */
emh203	0:76427232f435	457	#define NDDE 0x05 /* Replacement of a character collides with DDE */
emh203	0:76427232f435	458
emh203	0:76427232f435	459
emh203	0:76427232f435	460	/------------------------------------------------------------/
emh203	0:76427232f435	461	/* Module private work area */
emh203	0:76427232f435	462	/------------------------------------------------------------/
emh203	0:76427232f435	463	/* Note that uninitialized variables with static duration are
emh203	0:76427232f435	464	/ zeroed/nulled at start-up. If not, the compiler or start-up
emh203	0:76427232f435	465	/ routine is out of ANSI-C standard.
emh203	0:76427232f435	466	*/
emh203	0:76427232f435	467
emh203	0:76427232f435	468	#if _VOLUMES
emh203	0:76427232f435	469	static
emh203	0:76427232f435	470	FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
emh203	0:76427232f435	471	#else
emh203	0:76427232f435	472	#error Number of volumes must not be 0.
emh203	0:76427232f435	473	#endif
emh203	0:76427232f435	474
emh203	0:76427232f435	475	static
emh203	0:76427232f435	476	WORD Fsid; /* File system mount ID */
emh203	0:76427232f435	477
emh203	0:76427232f435	478	#if _FS_RPATH
emh203	0:76427232f435	479	static
emh203	0:76427232f435	480	BYTE CurrVol; /* Current drive */
emh203	0:76427232f435	481	#endif
emh203	0:76427232f435	482
emh203	0:76427232f435	483	#if _FS_SHARE
emh203	0:76427232f435	484	static
emh203	0:76427232f435	485	FILESEM Files[_FS_SHARE]; /* File lock semaphores */
emh203	0:76427232f435	486	#endif
emh203	0:76427232f435	487
emh203	0:76427232f435	488	#if _USE_LFN == 0 /* No LFN feature */
emh203	0:76427232f435	489	#define DEF_NAMEBUF BYTE sfn[12]
emh203	0:76427232f435	490	#define INIT_BUF(dobj) (dobj).fn = sfn
emh203	0:76427232f435	491	#define FREE_BUF()
emh203	0:76427232f435	492
emh203	0:76427232f435	493	#elif _USE_LFN == 1 /* LFN feature with static working buffer */
emh203	0:76427232f435	494	static WCHAR LfnBuf[_MAX_LFN+1];
emh203	0:76427232f435	495	#define DEF_NAMEBUF BYTE sfn[12]
emh203	0:76427232f435	496	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
emh203	0:76427232f435	497	#define FREE_BUF()
emh203	0:76427232f435	498
emh203	0:76427232f435	499	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
emh203	0:76427232f435	500	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
emh203	0:76427232f435	501	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
emh203	0:76427232f435	502	#define FREE_BUF()
emh203	0:76427232f435	503
emh203	0:76427232f435	504	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
emh203	0:76427232f435	505	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
emh203	0:76427232f435	506	#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
emh203	0:76427232f435	507	if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
emh203	0:76427232f435	508	(dobj).lfn = lfn; (dobj).fn = sfn; }
emh203	0:76427232f435	509	#define FREE_BUF() ff_memfree(lfn)
emh203	0:76427232f435	510
emh203	0:76427232f435	511	#else
emh203	0:76427232f435	512	#error Wrong LFN configuration.
emh203	0:76427232f435	513	#endif
emh203	0:76427232f435	514
emh203	0:76427232f435	515
emh203	0:76427232f435	516
emh203	0:76427232f435	517
emh203	0:76427232f435	518	/*--------------------------------------------------------------------------
emh203	0:76427232f435	519
emh203	0:76427232f435	520	Module Private Functions
emh203	0:76427232f435	521
emh203	0:76427232f435	522	---------------------------------------------------------------------------*/
emh203	0:76427232f435	523
emh203	0:76427232f435	524
emh203	0:76427232f435	525	/-----------------------------------------------------------------------/
emh203	0:76427232f435	526	/* String functions */
emh203	0:76427232f435	527	/-----------------------------------------------------------------------/
emh203	0:76427232f435	528
emh203	0:76427232f435	529	/* Copy memory to memory */
emh203	0:76427232f435	530	static
emh203	0:76427232f435	531	void mem_cpy (void* dst, const void* src, UINT cnt) {
emh203	0:76427232f435	532	BYTE d = (BYTE)dst;
emh203	0:76427232f435	533	const BYTE s = (const BYTE)src;
emh203	0:76427232f435	534
emh203	0:76427232f435	535	#if _WORD_ACCESS == 1
emh203	0:76427232f435	536	while (cnt >= sizeof(int)) {
emh203	0:76427232f435	537	(int)d = (int)s;
emh203	0:76427232f435	538	d += sizeof(int); s += sizeof(int);
emh203	0:76427232f435	539	cnt -= sizeof(int);
emh203	0:76427232f435	540	}
emh203	0:76427232f435	541	#endif
emh203	0:76427232f435	542	while (cnt--)
emh203	0:76427232f435	543	d++ = s++;
emh203	0:76427232f435	544	}
emh203	0:76427232f435	545
emh203	0:76427232f435	546	/* Fill memory */
emh203	0:76427232f435	547	static
emh203	0:76427232f435	548	void mem_set (void* dst, int val, UINT cnt) {
emh203	0:76427232f435	549	BYTE d = (BYTE)dst;
emh203	0:76427232f435	550
emh203	0:76427232f435	551	while (cnt--)
emh203	0:76427232f435	552	*d++ = (BYTE)val;
emh203	0:76427232f435	553	}
emh203	0:76427232f435	554
emh203	0:76427232f435	555	/* Compare memory to memory */
emh203	0:76427232f435	556	static
emh203	0:76427232f435	557	int mem_cmp (const void* dst, const void* src, UINT cnt) {
emh203	0:76427232f435	558	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
emh203	0:76427232f435	559	int r = 0;
emh203	0:76427232f435	560
emh203	0:76427232f435	561	while (cnt-- && (r = d++ - s++) == 0) ;
emh203	0:76427232f435	562	return r;
emh203	0:76427232f435	563	}
emh203	0:76427232f435	564
emh203	0:76427232f435	565	/* Check if chr is contained in the string */
emh203	0:76427232f435	566	static
emh203	0:76427232f435	567	int chk_chr (const char* str, int chr) {
emh203	0:76427232f435	568	while (str && str != chr) str++;
emh203	0:76427232f435	569	return *str;
emh203	0:76427232f435	570	}
emh203	0:76427232f435	571
emh203	0:76427232f435	572
emh203	0:76427232f435	573
emh203	0:76427232f435	574	/-----------------------------------------------------------------------/
emh203	0:76427232f435	575	/* Request/Release grant to access the volume */
emh203	0:76427232f435	576	/-----------------------------------------------------------------------/
emh203	0:76427232f435	577	#if _FS_REENTRANT
emh203	0:76427232f435	578
emh203	0:76427232f435	579	static
emh203	0:76427232f435	580	int lock_fs (
emh203	0:76427232f435	581	FATFS fs / File system object */
emh203	0:76427232f435	582	)
emh203	0:76427232f435	583	{
emh203	0:76427232f435	584	return ff_req_grant(fs->sobj);
emh203	0:76427232f435	585	}
emh203	0:76427232f435	586
emh203	0:76427232f435	587
emh203	0:76427232f435	588	static
emh203	0:76427232f435	589	void unlock_fs (
emh203	0:76427232f435	590	FATFS fs, / File system object */
emh203	0:76427232f435	591	FRESULT res /* Result code to be returned */
emh203	0:76427232f435	592	)
emh203	0:76427232f435	593	{
emh203	0:76427232f435	594	if (res != FR_NOT_ENABLED &&
emh203	0:76427232f435	595	res != FR_INVALID_DRIVE &&
emh203	0:76427232f435	596	res != FR_INVALID_OBJECT &&
emh203	0:76427232f435	597	res != FR_TIMEOUT) {
emh203	0:76427232f435	598	ff_rel_grant(fs->sobj);
emh203	0:76427232f435	599	}
emh203	0:76427232f435	600	}
emh203	0:76427232f435	601	#endif
emh203	0:76427232f435	602
emh203	0:76427232f435	603
emh203	0:76427232f435	604
emh203	0:76427232f435	605	/-----------------------------------------------------------------------/
emh203	0:76427232f435	606	/* File shareing control functions */
emh203	0:76427232f435	607	/-----------------------------------------------------------------------/
emh203	0:76427232f435	608	#if _FS_SHARE
emh203	0:76427232f435	609
emh203	0:76427232f435	610	static
emh203	0:76427232f435	611	FRESULT chk_lock ( /* Check if the file can be accessed */
emh203	0:76427232f435	612	DIR* dj, /* Directory object pointing the file to be checked */
emh203	0:76427232f435	613	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
emh203	0:76427232f435	614	)
emh203	0:76427232f435	615	{
emh203	0:76427232f435	616	UINT i, be;
emh203	0:76427232f435	617
emh203	0:76427232f435	618	/* Search file semaphore table */
emh203	0:76427232f435	619	for (i = be = 0; i < _FS_SHARE; i++) {
emh203	0:76427232f435	620	if (Files[i].fs) { /* Existing entry */
emh203	0:76427232f435	621	if (Files[i].fs == dj->fs && /* Check if the file matched with an open file */
emh203	0:76427232f435	622	Files[i].clu == dj->sclust &&
emh203	0:76427232f435	623	Files[i].idx == dj->index) break;
emh203	0:76427232f435	624	} else { /* Blank entry */
emh203	0:76427232f435	625	be++;
emh203	0:76427232f435	626	}
emh203	0:76427232f435	627	}
emh203	0:76427232f435	628	if (i == _FS_SHARE) /* The file is not opened */
emh203	0:76427232f435	629	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new file? */
emh203	0:76427232f435	630
emh203	0:76427232f435	631	/* The file has been opened. Reject any open against writing file and all write mode open */
emh203	0:76427232f435	632	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
emh203	0:76427232f435	633	}
emh203	0:76427232f435	634
emh203	0:76427232f435	635
emh203	0:76427232f435	636	static
emh203	0:76427232f435	637	int enq_lock (void) /* Check if an entry is available for a new file */
emh203	0:76427232f435	638	{
emh203	0:76427232f435	639	UINT i;
emh203	0:76427232f435	640
emh203	0:76427232f435	641	for (i = 0; i < _FS_SHARE && Files[i].fs; i++) ;
emh203	0:76427232f435	642	return (i == _FS_SHARE) ? 0 : 1;
emh203	0:76427232f435	643	}
emh203	0:76427232f435	644
emh203	0:76427232f435	645
emh203	0:76427232f435	646	static
emh203	0:76427232f435	647	UINT inc_lock ( /* Increment file open counter and returns its index (0:int error) */
emh203	0:76427232f435	648	DIR* dj, /* Directory object pointing the file to register or increment */
emh203	0:76427232f435	649	int acc /* Desired access mode (0:Read, !0:Write) */
emh203	0:76427232f435	650	)
emh203	0:76427232f435	651	{
emh203	0:76427232f435	652	UINT i;
emh203	0:76427232f435	653
emh203	0:76427232f435	654
emh203	0:76427232f435	655	for (i = 0; i < _FS_SHARE; i++) { /* Find the file */
emh203	0:76427232f435	656	if (Files[i].fs == dj->fs &&
emh203	0:76427232f435	657	Files[i].clu == dj->sclust &&
emh203	0:76427232f435	658	Files[i].idx == dj->index) break;
emh203	0:76427232f435	659	}
emh203	0:76427232f435	660
emh203	0:76427232f435	661	if (i == _FS_SHARE) { /* Not opened. Register it as new. */
emh203	0:76427232f435	662	for (i = 0; i < _FS_SHARE && Files[i].fs; i++) ;
emh203	0:76427232f435	663	if (i == _FS_SHARE) return 0; /* No space to register (int err) */
emh203	0:76427232f435	664	Files[i].fs = dj->fs;
emh203	0:76427232f435	665	Files[i].clu = dj->sclust;
emh203	0:76427232f435	666	Files[i].idx = dj->index;
emh203	0:76427232f435	667	Files[i].ctr = 0;
emh203	0:76427232f435	668	}
emh203	0:76427232f435	669
emh203	0:76427232f435	670	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
emh203	0:76427232f435	671
emh203	0:76427232f435	672	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
emh203	0:76427232f435	673
emh203	0:76427232f435	674	return i + 1;
emh203	0:76427232f435	675	}
emh203	0:76427232f435	676
emh203	0:76427232f435	677
emh203	0:76427232f435	678	static
emh203	0:76427232f435	679	FRESULT dec_lock ( /* Decrement file open counter */
emh203	0:76427232f435	680	UINT i /* Semaphore index */
emh203	0:76427232f435	681	)
emh203	0:76427232f435	682	{
emh203	0:76427232f435	683	WORD n;
emh203	0:76427232f435	684	FRESULT res;
emh203	0:76427232f435	685
emh203	0:76427232f435	686
emh203	0:76427232f435	687	if (--i < _FS_SHARE) {
emh203	0:76427232f435	688	n = Files[i].ctr;
emh203	0:76427232f435	689	if (n == 0x100) n = 0;
emh203	0:76427232f435	690	if (n) n--;
emh203	0:76427232f435	691	Files[i].ctr = n;
emh203	0:76427232f435	692	if (!n) Files[i].fs = 0;
emh203	0:76427232f435	693	res = FR_OK;
emh203	0:76427232f435	694	} else {
emh203	0:76427232f435	695	res = FR_INT_ERR;
emh203	0:76427232f435	696	}
emh203	0:76427232f435	697	return res;
emh203	0:76427232f435	698	}
emh203	0:76427232f435	699
emh203	0:76427232f435	700
emh203	0:76427232f435	701	static
emh203	0:76427232f435	702	void clear_lock ( /* Clear lock entries of the volume */
emh203	0:76427232f435	703	FATFS *fs
emh203	0:76427232f435	704	)
emh203	0:76427232f435	705	{
emh203	0:76427232f435	706	UINT i;
emh203	0:76427232f435	707
emh203	0:76427232f435	708	for (i = 0; i < _FS_SHARE; i++) {
emh203	0:76427232f435	709	if (Files[i].fs == fs) Files[i].fs = 0;
emh203	0:76427232f435	710	}
emh203	0:76427232f435	711	}
emh203	0:76427232f435	712	#endif
emh203	0:76427232f435	713
emh203	0:76427232f435	714
emh203	0:76427232f435	715
emh203	0:76427232f435	716	/-----------------------------------------------------------------------/
emh203	0:76427232f435	717	/* Change window offset */
emh203	0:76427232f435	718	/-----------------------------------------------------------------------/
emh203	0:76427232f435	719
emh203	0:76427232f435	720	static
emh203	0:76427232f435	721	FRESULT move_window (
emh203	0:76427232f435	722	FATFS fs, / File system object */
emh203	0:76427232f435	723	DWORD sector /* Sector number to make appearance in the fs->win[] */
emh203	0:76427232f435	724	) /* Move to zero only writes back dirty window */
emh203	0:76427232f435	725	{
emh203	0:76427232f435	726	DWORD wsect;
emh203	0:76427232f435	727
emh203	0:76427232f435	728
emh203	0:76427232f435	729	wsect = fs->winsect;
emh203	0:76427232f435	730	if (wsect != sector) { /* Changed current window */
emh203	0:76427232f435	731	#if !_FS_READONLY
emh203	0:76427232f435	732	if (fs->wflag) { /* Write back dirty window if needed */
emh203	0:76427232f435	733	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK)
emh203	0:76427232f435	734	return FR_DISK_ERR;
emh203	0:76427232f435	735	fs->wflag = 0;
emh203	0:76427232f435	736	if (wsect < (fs->fatbase + fs->fsize)) { /* In FAT area */
emh203	0:76427232f435	737	BYTE nf;
emh203	0:76427232f435	738	for (nf = fs->n_fats; nf > 1; nf--) { /* Reflect the change to all FAT copies */
emh203	0:76427232f435	739	wsect += fs->fsize;
emh203	0:76427232f435	740	disk_write(fs->drv, fs->win, wsect, 1);
emh203	0:76427232f435	741	}
emh203	0:76427232f435	742	}
emh203	0:76427232f435	743	}
emh203	0:76427232f435	744	#endif
emh203	0:76427232f435	745	if (sector) {
emh203	0:76427232f435	746	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK)
emh203	0:76427232f435	747	return FR_DISK_ERR;
emh203	0:76427232f435	748	fs->winsect = sector;
emh203	0:76427232f435	749	}
emh203	0:76427232f435	750	}
emh203	0:76427232f435	751
emh203	0:76427232f435	752	return FR_OK;
emh203	0:76427232f435	753	}
emh203	0:76427232f435	754
emh203	0:76427232f435	755
emh203	0:76427232f435	756
emh203	0:76427232f435	757
emh203	0:76427232f435	758	/-----------------------------------------------------------------------/
emh203	0:76427232f435	759	/* Clean-up cached data */
emh203	0:76427232f435	760	/-----------------------------------------------------------------------/
emh203	0:76427232f435	761	#if !_FS_READONLY
emh203	0:76427232f435	762	static
emh203	0:76427232f435	763	FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */
emh203	0:76427232f435	764	FATFS fs / File system object */
emh203	0:76427232f435	765	)
emh203	0:76427232f435	766	{
emh203	0:76427232f435	767	FRESULT res;
emh203	0:76427232f435	768
emh203	0:76427232f435	769
emh203	0:76427232f435	770	res = move_window(fs, 0);
emh203	0:76427232f435	771	if (res == FR_OK) {
emh203	0:76427232f435	772	/* Update FSInfo sector if needed */
emh203	0:76427232f435	773	if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
emh203	0:76427232f435	774	fs->winsect = 0;
emh203	0:76427232f435	775	/* Create FSInfo structure */
emh203	0:76427232f435	776	mem_set(fs->win, 0, 512);
emh203	0:76427232f435	777	ST_WORD(fs->win+BS_55AA, 0xAA55);
emh203	0:76427232f435	778	ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
emh203	0:76427232f435	779	ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
emh203	0:76427232f435	780	ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
emh203	0:76427232f435	781	ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
emh203	0:76427232f435	782	/* Write it into the FSInfo sector */
emh203	0:76427232f435	783	disk_write(fs->drv, fs->win, fs->fsi_sector, 1);
emh203	0:76427232f435	784	fs->fsi_flag = 0;
emh203	0:76427232f435	785	}
emh203	0:76427232f435	786	/* Make sure that no pending write process in the physical drive */
emh203	0:76427232f435	787	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
emh203	0:76427232f435	788	res = FR_DISK_ERR;
emh203	0:76427232f435	789	}
emh203	0:76427232f435	790
emh203	0:76427232f435	791	return res;
emh203	0:76427232f435	792	}
emh203	0:76427232f435	793	#endif
emh203	0:76427232f435	794
emh203	0:76427232f435	795
emh203	0:76427232f435	796
emh203	0:76427232f435	797
emh203	0:76427232f435	798	/-----------------------------------------------------------------------/
emh203	0:76427232f435	799	/* Get sector# from cluster# */
emh203	0:76427232f435	800	/-----------------------------------------------------------------------/
emh203	0:76427232f435	801
emh203	0:76427232f435	802
emh203	0:76427232f435	803	DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
emh203	0:76427232f435	804	FATFS fs, / File system object */
emh203	0:76427232f435	805	DWORD clst /* Cluster# to be converted */
emh203	0:76427232f435	806	)
emh203	0:76427232f435	807	{
emh203	0:76427232f435	808	clst -= 2;
emh203	0:76427232f435	809	if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
emh203	0:76427232f435	810	return clst * fs->csize + fs->database;
emh203	0:76427232f435	811	}
emh203	0:76427232f435	812
emh203	0:76427232f435	813
emh203	0:76427232f435	814
emh203	0:76427232f435	815
emh203	0:76427232f435	816	/-----------------------------------------------------------------------/
emh203	0:76427232f435	817	/* FAT access - Read value of a FAT entry */
emh203	0:76427232f435	818	/-----------------------------------------------------------------------/
emh203	0:76427232f435	819
emh203	0:76427232f435	820
emh203	0:76427232f435	821	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
emh203	0:76427232f435	822	FATFS fs, / File system object */
emh203	0:76427232f435	823	DWORD clst /* Cluster# to get the link information */
emh203	0:76427232f435	824	)
emh203	0:76427232f435	825	{
emh203	0:76427232f435	826	UINT wc, bc;
emh203	0:76427232f435	827	BYTE *p;
emh203	0:76427232f435	828
emh203	0:76427232f435	829
emh203	0:76427232f435	830	if (clst < 2 \|\| clst >= fs->n_fatent) /* Chack range */
emh203	0:76427232f435	831	return 1;
emh203	0:76427232f435	832
emh203	0:76427232f435	833	switch (fs->fs_type) {
emh203	0:76427232f435	834	case FS_FAT12 :
emh203	0:76427232f435	835	bc = (UINT)clst; bc += bc / 2;
emh203	0:76427232f435	836	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
emh203	0:76427232f435	837	wc = fs->win[bc % SS(fs)]; bc++;
emh203	0:76427232f435	838	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
emh203	0:76427232f435	839	wc \|= fs->win[bc % SS(fs)] << 8;
emh203	0:76427232f435	840	return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
emh203	0:76427232f435	841
emh203	0:76427232f435	842	case FS_FAT16 :
emh203	0:76427232f435	843	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
emh203	0:76427232f435	844	p = &fs->win[clst * 2 % SS(fs)];
emh203	0:76427232f435	845	return LD_WORD(p);
emh203	0:76427232f435	846
emh203	0:76427232f435	847	case FS_FAT32 :
emh203	0:76427232f435	848	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
emh203	0:76427232f435	849	p = &fs->win[clst * 4 % SS(fs)];
emh203	0:76427232f435	850	return LD_DWORD(p) & 0x0FFFFFFF;
emh203	0:76427232f435	851	}
emh203	0:76427232f435	852
emh203	0:76427232f435	853	return 0xFFFFFFFF; /* An error occurred at the disk I/O layer */
emh203	0:76427232f435	854	}
emh203	0:76427232f435	855
emh203	0:76427232f435	856
emh203	0:76427232f435	857
emh203	0:76427232f435	858
emh203	0:76427232f435	859	/-----------------------------------------------------------------------/
emh203	0:76427232f435	860	/* FAT access - Change value of a FAT entry */
emh203	0:76427232f435	861	/-----------------------------------------------------------------------/
emh203	0:76427232f435	862	#if !_FS_READONLY
emh203	0:76427232f435	863
emh203	0:76427232f435	864	FRESULT put_fat (
emh203	0:76427232f435	865	FATFS fs, / File system object */
emh203	0:76427232f435	866	DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
emh203	0:76427232f435	867	DWORD val /* New value to mark the cluster */
emh203	0:76427232f435	868	)
emh203	0:76427232f435	869	{
emh203	0:76427232f435	870	UINT bc;
emh203	0:76427232f435	871	BYTE *p;
emh203	0:76427232f435	872	FRESULT res;
emh203	0:76427232f435	873
emh203	0:76427232f435	874
emh203	0:76427232f435	875	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
emh203	0:76427232f435	876	res = FR_INT_ERR;
emh203	0:76427232f435	877
emh203	0:76427232f435	878	} else {
emh203	0:76427232f435	879	switch (fs->fs_type) {
emh203	0:76427232f435	880	case FS_FAT12 :
emh203	0:76427232f435	881	bc = clst; bc += bc / 2;
emh203	0:76427232f435	882	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
emh203	0:76427232f435	883	if (res != FR_OK) break;
emh203	0:76427232f435	884	p = &fs->win[bc % SS(fs)];
emh203	0:76427232f435	885	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
emh203	0:76427232f435	886	bc++;
emh203	0:76427232f435	887	fs->wflag = 1;
emh203	0:76427232f435	888	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
emh203	0:76427232f435	889	if (res != FR_OK) break;
emh203	0:76427232f435	890	p = &fs->win[bc % SS(fs)];
emh203	0:76427232f435	891	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
emh203	0:76427232f435	892	break;
emh203	0:76427232f435	893
emh203	0:76427232f435	894	case FS_FAT16 :
emh203	0:76427232f435	895	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
emh203	0:76427232f435	896	if (res != FR_OK) break;
emh203	0:76427232f435	897	p = &fs->win[clst * 2 % SS(fs)];
emh203	0:76427232f435	898	ST_WORD(p, (WORD)val);
emh203	0:76427232f435	899	break;
emh203	0:76427232f435	900
emh203	0:76427232f435	901	case FS_FAT32 :
emh203	0:76427232f435	902	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
emh203	0:76427232f435	903	if (res != FR_OK) break;
emh203	0:76427232f435	904	p = &fs->win[clst * 4 % SS(fs)];
emh203	0:76427232f435	905	val \|= LD_DWORD(p) & 0xF0000000;
emh203	0:76427232f435	906	ST_DWORD(p, val);
emh203	0:76427232f435	907	break;
emh203	0:76427232f435	908
emh203	0:76427232f435	909	default :
emh203	0:76427232f435	910	res = FR_INT_ERR;
emh203	0:76427232f435	911	}
emh203	0:76427232f435	912	fs->wflag = 1;
emh203	0:76427232f435	913	}
emh203	0:76427232f435	914
emh203	0:76427232f435	915	return res;
emh203	0:76427232f435	916	}
emh203	0:76427232f435	917	#endif /* !_FS_READONLY */
emh203	0:76427232f435	918
emh203	0:76427232f435	919
emh203	0:76427232f435	920
emh203	0:76427232f435	921
emh203	0:76427232f435	922	/-----------------------------------------------------------------------/
emh203	0:76427232f435	923	/* FAT handling - Remove a cluster chain */
emh203	0:76427232f435	924	/-----------------------------------------------------------------------/
emh203	0:76427232f435	925	#if !_FS_READONLY
emh203	0:76427232f435	926	static
emh203	0:76427232f435	927	FRESULT remove_chain (
emh203	0:76427232f435	928	FATFS fs, / File system object */
emh203	0:76427232f435	929	DWORD clst /* Cluster# to remove a chain from */
emh203	0:76427232f435	930	)
emh203	0:76427232f435	931	{
emh203	0:76427232f435	932	FRESULT res;
emh203	0:76427232f435	933	DWORD nxt;
emh203	0:76427232f435	934	#if _USE_ERASE
emh203	0:76427232f435	935	DWORD scl = clst, ecl = clst, resion[2];
emh203	0:76427232f435	936	#endif
emh203	0:76427232f435	937
emh203	0:76427232f435	938	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
emh203	0:76427232f435	939	res = FR_INT_ERR;
emh203	0:76427232f435	940
emh203	0:76427232f435	941	} else {
emh203	0:76427232f435	942	res = FR_OK;
emh203	0:76427232f435	943	while (clst < fs->n_fatent) { /* Not a last link? */
emh203	0:76427232f435	944	nxt = get_fat(fs, clst); /* Get cluster status */
emh203	0:76427232f435	945	if (nxt == 0) break; /* Empty cluster? */
emh203	0:76427232f435	946	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
emh203	0:76427232f435	947	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
emh203	0:76427232f435	948	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
emh203	0:76427232f435	949	if (res != FR_OK) break;
emh203	0:76427232f435	950	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */
emh203	0:76427232f435	951	fs->free_clust++;
emh203	0:76427232f435	952	fs->fsi_flag = 1;
emh203	0:76427232f435	953	}
emh203	0:76427232f435	954	#if _USE_ERASE
emh203	0:76427232f435	955	if (ecl + 1 == nxt) { /* Next cluster is contiguous */
emh203	0:76427232f435	956	ecl = nxt;
emh203	0:76427232f435	957	} else { /* End of contiguous clusters */
emh203	0:76427232f435	958	resion[0] = clust2sect(fs, scl); /* Start sector */
emh203	0:76427232f435	959	resion[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
emh203	0:76427232f435	960	disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, resion); /* Erase the block */
emh203	0:76427232f435	961	scl = ecl = nxt;
emh203	0:76427232f435	962	}
emh203	0:76427232f435	963	#endif
emh203	0:76427232f435	964	clst = nxt; /* Next cluster */
emh203	0:76427232f435	965	}
emh203	0:76427232f435	966	}
emh203	0:76427232f435	967
emh203	0:76427232f435	968	return res;
emh203	0:76427232f435	969	}
emh203	0:76427232f435	970	#endif
emh203	0:76427232f435	971
emh203	0:76427232f435	972
emh203	0:76427232f435	973
emh203	0:76427232f435	974
emh203	0:76427232f435	975	/-----------------------------------------------------------------------/
emh203	0:76427232f435	976	/* FAT handling - Stretch or Create a cluster chain */
emh203	0:76427232f435	977	/-----------------------------------------------------------------------/
emh203	0:76427232f435	978	#if !_FS_READONLY
emh203	0:76427232f435	979	static
emh203	0:76427232f435	980	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
emh203	0:76427232f435	981	FATFS fs, / File system object */
emh203	0:76427232f435	982	DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
emh203	0:76427232f435	983	)
emh203	0:76427232f435	984	{
emh203	0:76427232f435	985	DWORD cs, ncl, scl;
emh203	0:76427232f435	986	FRESULT res;
emh203	0:76427232f435	987
emh203	0:76427232f435	988
emh203	0:76427232f435	989	if (clst == 0) { /* Create a new chain */
emh203	0:76427232f435	990	scl = fs->last_clust; /* Get suggested start point */
emh203	0:76427232f435	991	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
emh203	0:76427232f435	992	}
emh203	0:76427232f435	993	else { /* Stretch the current chain */
emh203	0:76427232f435	994	cs = get_fat(fs, clst); /* Check the cluster status */
emh203	0:76427232f435	995	if (cs < 2) return 1; /* It is an invalid cluster */
emh203	0:76427232f435	996	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
emh203	0:76427232f435	997	scl = clst;
emh203	0:76427232f435	998	}
emh203	0:76427232f435	999
emh203	0:76427232f435	1000	ncl = scl; /* Start cluster */
emh203	0:76427232f435	1001	for (;;) {
emh203	0:76427232f435	1002	ncl++; /* Next cluster */
emh203	0:76427232f435	1003	if (ncl >= fs->n_fatent) { /* Wrap around */
emh203	0:76427232f435	1004	ncl = 2;
emh203	0:76427232f435	1005	if (ncl > scl) return 0; /* No free cluster */
emh203	0:76427232f435	1006	}
emh203	0:76427232f435	1007	cs = get_fat(fs, ncl); /* Get the cluster status */
emh203	0:76427232f435	1008	if (cs == 0) break; /* Found a free cluster */
emh203	0:76427232f435	1009	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
emh203	0:76427232f435	1010	return cs;
emh203	0:76427232f435	1011	if (ncl == scl) return 0; /* No free cluster */
emh203	0:76427232f435	1012	}
emh203	0:76427232f435	1013
emh203	0:76427232f435	1014	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
emh203	0:76427232f435	1015	if (res == FR_OK && clst != 0) {
emh203	0:76427232f435	1016	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
emh203	0:76427232f435	1017	}
emh203	0:76427232f435	1018	if (res == FR_OK) {
emh203	0:76427232f435	1019	fs->last_clust = ncl; /* Update FSINFO */
emh203	0:76427232f435	1020	if (fs->free_clust != 0xFFFFFFFF) {
emh203	0:76427232f435	1021	fs->free_clust--;
emh203	0:76427232f435	1022	fs->fsi_flag = 1;
emh203	0:76427232f435	1023	}
emh203	0:76427232f435	1024	} else {
emh203	0:76427232f435	1025	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
emh203	0:76427232f435	1026	}
emh203	0:76427232f435	1027
emh203	0:76427232f435	1028	return ncl; /* Return new cluster number or error code */
emh203	0:76427232f435	1029	}
emh203	0:76427232f435	1030	#endif /* !_FS_READONLY */
emh203	0:76427232f435	1031
emh203	0:76427232f435	1032
emh203	0:76427232f435	1033
emh203	0:76427232f435	1034	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1035	/* FAT handling - Convert offset into cluster with link map table */
emh203	0:76427232f435	1036	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1037
emh203	0:76427232f435	1038	#if _USE_FASTSEEK
emh203	0:76427232f435	1039	static
emh203	0:76427232f435	1040	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
emh203	0:76427232f435	1041	FIL* fp, /* Pointer to the file object */
emh203	0:76427232f435	1042	DWORD ofs /* File offset to be converted to cluster# */
emh203	0:76427232f435	1043	)
emh203	0:76427232f435	1044	{
emh203	0:76427232f435	1045	DWORD cl, ncl, *tbl;
emh203	0:76427232f435	1046
emh203	0:76427232f435	1047
emh203	0:76427232f435	1048	tbl = fp->cltbl + 1; /* Top of CLMT */
emh203	0:76427232f435	1049	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
emh203	0:76427232f435	1050	for (;;) {
emh203	0:76427232f435	1051	ncl = tbl++; / Number of cluters in the fragment */
emh203	0:76427232f435	1052	if (!ncl) return 0; /* End of table? (error) */
emh203	0:76427232f435	1053	if (cl < ncl) break; /* In this fragment? */
emh203	0:76427232f435	1054	cl -= ncl; tbl++; /* Next fragment */
emh203	0:76427232f435	1055	}
emh203	0:76427232f435	1056	return cl + tbl; / Return the cluster number */
emh203	0:76427232f435	1057	}
emh203	0:76427232f435	1058	#endif /* _USE_FASTSEEK */
emh203	0:76427232f435	1059
emh203	0:76427232f435	1060
emh203	0:76427232f435	1061
emh203	0:76427232f435	1062	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1063	/* Directory handling - Set directory index */
emh203	0:76427232f435	1064	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1065
emh203	0:76427232f435	1066	static
emh203	0:76427232f435	1067	FRESULT dir_sdi (
emh203	0:76427232f435	1068	eDIR dj, / Pointer to directory object */
emh203	0:76427232f435	1069	WORD idx /* Directory index number */
emh203	0:76427232f435	1070	)
emh203	0:76427232f435	1071	{
emh203	0:76427232f435	1072	DWORD clst;
emh203	0:76427232f435	1073	WORD ic;
emh203	0:76427232f435	1074
emh203	0:76427232f435	1075
emh203	0:76427232f435	1076	dj->index = idx;
emh203	0:76427232f435	1077	clst = dj->sclust;
emh203	0:76427232f435	1078	if (clst == 1 \|\| clst >= dj->fs->n_fatent) /* Check start cluster range */
emh203	0:76427232f435	1079	return FR_INT_ERR;
emh203	0:76427232f435	1080	if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
emh203	0:76427232f435	1081	clst = dj->fs->dirbase;
emh203	0:76427232f435	1082
emh203	0:76427232f435	1083	if (clst == 0) { /* Static table (root-dir in FAT12/16) */
emh203	0:76427232f435	1084	dj->clust = clst;
emh203	0:76427232f435	1085	if (idx >= dj->fs->n_rootdir) /* Index is out of range */
emh203	0:76427232f435	1086	return FR_INT_ERR;
emh203	0:76427232f435	1087	dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
emh203	0:76427232f435	1088	}
emh203	0:76427232f435	1089	else { /* Dynamic table (sub-dirs or root-dir in FAT32) */
emh203	0:76427232f435	1090	ic = SS(dj->fs) / SZ_DIR * dj->fs->csize; /* Entries per cluster */
emh203	0:76427232f435	1091	while (idx >= ic) { /* Follow cluster chain */
emh203	0:76427232f435	1092	clst = get_fat(dj->fs, clst); /* Get next cluster */
emh203	0:76427232f435	1093	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
emh203	0:76427232f435	1094	if (clst < 2 \|\| clst >= dj->fs->n_fatent) /* Reached to end of table or int error */
emh203	0:76427232f435	1095	return FR_INT_ERR;
emh203	0:76427232f435	1096	idx -= ic;
emh203	0:76427232f435	1097	}
emh203	0:76427232f435	1098	dj->clust = clst;
emh203	0:76427232f435	1099	dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
emh203	0:76427232f435	1100	}
emh203	0:76427232f435	1101
emh203	0:76427232f435	1102	dj->dir = dj->fs->win + (idx % (SS(dj->fs) / SZ_DIR)) * SZ_DIR; /* Ptr to the entry in the sector */
emh203	0:76427232f435	1103
emh203	0:76427232f435	1104	return FR_OK; /* Seek succeeded */
emh203	0:76427232f435	1105	}
emh203	0:76427232f435	1106
emh203	0:76427232f435	1107
emh203	0:76427232f435	1108
emh203	0:76427232f435	1109
emh203	0:76427232f435	1110	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1111	/* Directory handling - Move directory index next */
emh203	0:76427232f435	1112	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1113
emh203	0:76427232f435	1114	static
emh203	0:76427232f435	1115	FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not stretch */
emh203	0:76427232f435	1116	eDIR dj, / Pointer to directory object */
emh203	0:76427232f435	1117	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
emh203	0:76427232f435	1118	)
emh203	0:76427232f435	1119	{
emh203	0:76427232f435	1120	DWORD clst;
emh203	0:76427232f435	1121	WORD i;
emh203	0:76427232f435	1122
emh203	0:76427232f435	1123
emh203	0:76427232f435	1124	stretch = stretch; /* To suppress warning on read-only cfg. */
emh203	0:76427232f435	1125	i = dj->index + 1;
emh203	0:76427232f435	1126	if (!i \|\| !dj->sect) /* Report EOT when index has reached 65535 */
emh203	0:76427232f435	1127	return FR_NO_FILE;
emh203	0:76427232f435	1128
emh203	0:76427232f435	1129	if (!(i % (SS(dj->fs) / SZ_DIR))) { /* Sector changed? */
emh203	0:76427232f435	1130	dj->sect++; /* Next sector */
emh203	0:76427232f435	1131
emh203	0:76427232f435	1132	if (dj->clust == 0) { /* Static table */
emh203	0:76427232f435	1133	if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */
emh203	0:76427232f435	1134	return FR_NO_FILE;
emh203	0:76427232f435	1135	}
emh203	0:76427232f435	1136	else { /* Dynamic table */
emh203	0:76427232f435	1137	if (((i / (SS(dj->fs) / SZ_DIR)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
emh203	0:76427232f435	1138	clst = get_fat(dj->fs, dj->clust); /* Get next cluster */
emh203	0:76427232f435	1139	if (clst <= 1) return FR_INT_ERR;
emh203	0:76427232f435	1140	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
emh203	0:76427232f435	1141	if (clst >= dj->fs->n_fatent) { /* When it reached end of dynamic table */
emh203	0:76427232f435	1142	#if !_FS_READONLY
emh203	0:76427232f435	1143	BYTE c;
emh203	0:76427232f435	1144	if (!stretch) return FR_NO_FILE; /* When do not stretch, report EOT */
emh203	0:76427232f435	1145	clst = create_chain(dj->fs, dj->clust); /* Stretch cluster chain */
emh203	0:76427232f435	1146	if (clst == 0) return FR_DENIED; /* No free cluster */
emh203	0:76427232f435	1147	if (clst == 1) return FR_INT_ERR;
emh203	0:76427232f435	1148	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
emh203	0:76427232f435	1149	/* Clean-up stretched table */
emh203	0:76427232f435	1150	if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */
emh203	0:76427232f435	1151	mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */
emh203	0:76427232f435	1152	dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */
emh203	0:76427232f435	1153	for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */
emh203	0:76427232f435	1154	dj->fs->wflag = 1;
emh203	0:76427232f435	1155	if (move_window(dj->fs, 0)) return FR_DISK_ERR;
emh203	0:76427232f435	1156	dj->fs->winsect++;
emh203	0:76427232f435	1157	}
emh203	0:76427232f435	1158	dj->fs->winsect -= c; /* Rewind window address */
emh203	0:76427232f435	1159	#else
emh203	0:76427232f435	1160	return FR_NO_FILE; /* Report EOT */
emh203	0:76427232f435	1161	#endif
emh203	0:76427232f435	1162	}
emh203	0:76427232f435	1163	dj->clust = clst; /* Initialize data for new cluster */
emh203	0:76427232f435	1164	dj->sect = clust2sect(dj->fs, clst);
emh203	0:76427232f435	1165	}
emh203	0:76427232f435	1166	}
emh203	0:76427232f435	1167	}
emh203	0:76427232f435	1168
emh203	0:76427232f435	1169	dj->index = i;
emh203	0:76427232f435	1170	dj->dir = dj->fs->win + (i % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;
emh203	0:76427232f435	1171
emh203	0:76427232f435	1172	return FR_OK;
emh203	0:76427232f435	1173	}
emh203	0:76427232f435	1174
emh203	0:76427232f435	1175
emh203	0:76427232f435	1176
emh203	0:76427232f435	1177
emh203	0:76427232f435	1178	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1179	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
emh203	0:76427232f435	1180	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1181	#if _USE_LFN
emh203	0:76427232f435	1182	static
emh203	0:76427232f435	1183	const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN chars in the directory entry */
emh203	0:76427232f435	1184
emh203	0:76427232f435	1185
emh203	0:76427232f435	1186	static
emh203	0:76427232f435	1187	int cmp_lfn ( /* 1:Matched, 0:Not matched */
emh203	0:76427232f435	1188	WCHAR lfnbuf, / Pointer to the LFN to be compared */
emh203	0:76427232f435	1189	BYTE dir / Pointer to the directory entry containing a part of LFN */
emh203	0:76427232f435	1190	)
emh203	0:76427232f435	1191	{
emh203	0:76427232f435	1192	UINT i, s;
emh203	0:76427232f435	1193	WCHAR wc, uc;
emh203	0:76427232f435	1194
emh203	0:76427232f435	1195
emh203	0:76427232f435	1196	i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
emh203	0:76427232f435	1197	s = 0; wc = 1;
emh203	0:76427232f435	1198	do {
emh203	0:76427232f435	1199	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
emh203	0:76427232f435	1200	if (wc) { /* Last char has not been processed */
emh203	0:76427232f435	1201	wc = ff_wtoupper(uc); /* Convert it to upper case */
emh203	0:76427232f435	1202	if (i >= _MAX_LFN \|\| wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
emh203	0:76427232f435	1203	return 0; /* Not matched */
emh203	0:76427232f435	1204	} else {
emh203	0:76427232f435	1205	if (uc != 0xFFFF) return 0; /* Check filler */
emh203	0:76427232f435	1206	}
emh203	0:76427232f435	1207	} while (++s < 13); /* Repeat until all chars in the entry are checked */
emh203	0:76427232f435	1208
emh203	0:76427232f435	1209	if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) /* Last segment matched but different length */
emh203	0:76427232f435	1210	return 0;
emh203	0:76427232f435	1211
emh203	0:76427232f435	1212	return 1; /* The part of LFN matched */
emh203	0:76427232f435	1213	}
emh203	0:76427232f435	1214
emh203	0:76427232f435	1215
emh203	0:76427232f435	1216
emh203	0:76427232f435	1217	static
emh203	0:76427232f435	1218	int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
emh203	0:76427232f435	1219	WCHAR lfnbuf, / Pointer to the Unicode-LFN buffer */
emh203	0:76427232f435	1220	BYTE dir / Pointer to the directory entry */
emh203	0:76427232f435	1221	)
emh203	0:76427232f435	1222	{
emh203	0:76427232f435	1223	UINT i, s;
emh203	0:76427232f435	1224	WCHAR wc, uc;
emh203	0:76427232f435	1225
emh203	0:76427232f435	1226
emh203	0:76427232f435	1227	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
emh203	0:76427232f435	1228
emh203	0:76427232f435	1229	s = 0; wc = 1;
emh203	0:76427232f435	1230	do {
emh203	0:76427232f435	1231	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
emh203	0:76427232f435	1232	if (wc) { /* Last char has not been processed */
emh203	0:76427232f435	1233	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
emh203	0:76427232f435	1234	lfnbuf[i++] = wc = uc; /* Store it */
emh203	0:76427232f435	1235	} else {
emh203	0:76427232f435	1236	if (uc != 0xFFFF) return 0; /* Check filler */
emh203	0:76427232f435	1237	}
emh203	0:76427232f435	1238	} while (++s < 13); /* Read all character in the entry */
emh203	0:76427232f435	1239
emh203	0:76427232f435	1240	if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
emh203	0:76427232f435	1241	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
emh203	0:76427232f435	1242	lfnbuf[i] = 0;
emh203	0:76427232f435	1243	}
emh203	0:76427232f435	1244
emh203	0:76427232f435	1245	return 1;
emh203	0:76427232f435	1246	}
emh203	0:76427232f435	1247
emh203	0:76427232f435	1248
emh203	0:76427232f435	1249	#if !_FS_READONLY
emh203	0:76427232f435	1250	static
emh203	0:76427232f435	1251	void fit_lfn (
emh203	0:76427232f435	1252	const WCHAR lfnbuf, / Pointer to the LFN buffer */
emh203	0:76427232f435	1253	BYTE dir, / Pointer to the directory entry */
emh203	0:76427232f435	1254	BYTE ord, /* LFN order (1-20) */
emh203	0:76427232f435	1255	BYTE sum /* SFN sum */
emh203	0:76427232f435	1256	)
emh203	0:76427232f435	1257	{
emh203	0:76427232f435	1258	UINT i, s;
emh203	0:76427232f435	1259	WCHAR wc;
emh203	0:76427232f435	1260
emh203	0:76427232f435	1261
emh203	0:76427232f435	1262	dir[LDIR_Chksum] = sum; /* Set check sum */
emh203	0:76427232f435	1263	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
emh203	0:76427232f435	1264	dir[LDIR_Type] = 0;
emh203	0:76427232f435	1265	ST_WORD(dir+LDIR_FstClusLO, 0);
emh203	0:76427232f435	1266
emh203	0:76427232f435	1267	i = (ord - 1) * 13; /* Get offset in the LFN buffer */
emh203	0:76427232f435	1268	s = wc = 0;
emh203	0:76427232f435	1269	do {
emh203	0:76427232f435	1270	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */
emh203	0:76427232f435	1271	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
emh203	0:76427232f435	1272	if (!wc) wc = 0xFFFF; /* Padding chars following last char */
emh203	0:76427232f435	1273	} while (++s < 13);
emh203	0:76427232f435	1274	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLE; /* Bottom LFN part is the start of LFN sequence */
emh203	0:76427232f435	1275	dir[LDIR_Ord] = ord; /* Set the LFN order */
emh203	0:76427232f435	1276	}
emh203	0:76427232f435	1277
emh203	0:76427232f435	1278	#endif
emh203	0:76427232f435	1279	#endif
emh203	0:76427232f435	1280
emh203	0:76427232f435	1281
emh203	0:76427232f435	1282
emh203	0:76427232f435	1283	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1284	/* Create numbered name */
emh203	0:76427232f435	1285	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1286	#if _USE_LFN
emh203	0:76427232f435	1287	void gen_numname (
emh203	0:76427232f435	1288	BYTE dst, / Pointer to generated SFN */
emh203	0:76427232f435	1289	const BYTE src, / Pointer to source SFN to be modified */
emh203	0:76427232f435	1290	const WCHAR lfn, / Pointer to LFN */
emh203	0:76427232f435	1291	WORD seq /* Sequence number */
emh203	0:76427232f435	1292	)
emh203	0:76427232f435	1293	{
emh203	0:76427232f435	1294	BYTE ns[8], c;
emh203	0:76427232f435	1295	UINT i, j;
emh203	0:76427232f435	1296
emh203	0:76427232f435	1297
emh203	0:76427232f435	1298	mem_cpy(dst, src, 11);
emh203	0:76427232f435	1299
emh203	0:76427232f435	1300	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
emh203	0:76427232f435	1301	do seq = (seq >> 1) + (seq << 15) + (WORD)lfn++; while (lfn);
emh203	0:76427232f435	1302	}
emh203	0:76427232f435	1303
emh203	0:76427232f435	1304	/* itoa (hexdecimal) */
emh203	0:76427232f435	1305	i = 7;
emh203	0:76427232f435	1306	do {
emh203	0:76427232f435	1307	c = (seq % 16) + '0';
emh203	0:76427232f435	1308	if (c > '9') c += 7;
emh203	0:76427232f435	1309	ns[i--] = c;
emh203	0:76427232f435	1310	seq /= 16;
emh203	0:76427232f435	1311	} while (seq);
emh203	0:76427232f435	1312	ns[i] = '~';
emh203	0:76427232f435	1313
emh203	0:76427232f435	1314	/* Append the number */
emh203	0:76427232f435	1315	for (j = 0; j < i && dst[j] != ' '; j++) {
emh203	0:76427232f435	1316	if (IsDBCS1(dst[j])) {
emh203	0:76427232f435	1317	if (j == i - 1) break;
emh203	0:76427232f435	1318	j++;
emh203	0:76427232f435	1319	}
emh203	0:76427232f435	1320	}
emh203	0:76427232f435	1321	do {
emh203	0:76427232f435	1322	dst[j++] = (i < 8) ? ns[i++] : ' ';
emh203	0:76427232f435	1323	} while (j < 8);
emh203	0:76427232f435	1324	}
emh203	0:76427232f435	1325	#endif
emh203	0:76427232f435	1326
emh203	0:76427232f435	1327
emh203	0:76427232f435	1328
emh203	0:76427232f435	1329
emh203	0:76427232f435	1330	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1331	/* Calculate sum of an SFN */
emh203	0:76427232f435	1332	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1333	#if _USE_LFN
emh203	0:76427232f435	1334	static
emh203	0:76427232f435	1335	BYTE sum_sfn (
emh203	0:76427232f435	1336	const BYTE dir / Ptr to directory entry */
emh203	0:76427232f435	1337	)
emh203	0:76427232f435	1338	{
emh203	0:76427232f435	1339	BYTE sum = 0;
emh203	0:76427232f435	1340	UINT n = 11;
emh203	0:76427232f435	1341
emh203	0:76427232f435	1342	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
emh203	0:76427232f435	1343	return sum;
emh203	0:76427232f435	1344	}
emh203	0:76427232f435	1345	#endif
emh203	0:76427232f435	1346
emh203	0:76427232f435	1347
emh203	0:76427232f435	1348
emh203	0:76427232f435	1349
emh203	0:76427232f435	1350	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1351	/* Directory handling - Find an object in the directory */
emh203	0:76427232f435	1352	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1353
emh203	0:76427232f435	1354	static
emh203	0:76427232f435	1355	FRESULT dir_find (
emh203	0:76427232f435	1356	eDIR dj / Pointer to the directory object linked to the file name */
emh203	0:76427232f435	1357	)
emh203	0:76427232f435	1358	{
emh203	0:76427232f435	1359	FRESULT res;
emh203	0:76427232f435	1360	BYTE c, *dir;
emh203	0:76427232f435	1361	#if _USE_LFN
emh203	0:76427232f435	1362	BYTE a, ord, sum;
emh203	0:76427232f435	1363	#endif
emh203	0:76427232f435	1364
emh203	0:76427232f435	1365	res = dir_sdi(dj, 0); /* Rewind directory object */
emh203	0:76427232f435	1366	if (res != FR_OK) return res;
emh203	0:76427232f435	1367
emh203	0:76427232f435	1368	#if _USE_LFN
emh203	0:76427232f435	1369	ord = sum = 0xFF;
emh203	0:76427232f435	1370	#endif
emh203	0:76427232f435	1371	do {
emh203	0:76427232f435	1372	res = move_window(dj->fs, dj->sect);
emh203	0:76427232f435	1373	if (res != FR_OK) break;
emh203	0:76427232f435	1374	dir = dj->dir; /* Ptr to the directory entry of current index */
emh203	0:76427232f435	1375	c = dir[DIR_Name];
emh203	0:76427232f435	1376	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
emh203	0:76427232f435	1377	#if _USE_LFN /* LFN configuration */
emh203	0:76427232f435	1378	a = dir[DIR_Attr] & AM_MASK;
emh203	0:76427232f435	1379	if (c == DDE \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
emh203	0:76427232f435	1380	ord = 0xFF;
emh203	0:76427232f435	1381	} else {
emh203	0:76427232f435	1382	if (a == AM_LFN) { /* An LFN entry is found */
emh203	0:76427232f435	1383	if (dj->lfn) {
emh203	0:76427232f435	1384	if (c & LLE) { /* Is it start of LFN sequence? */
emh203	0:76427232f435	1385	sum = dir[LDIR_Chksum];
emh203	0:76427232f435	1386	c &= ~LLE; ord = c; /* LFN start order */
emh203	0:76427232f435	1387	dj->lfn_idx = dj->index;
emh203	0:76427232f435	1388	}
emh203	0:76427232f435	1389	/* Check validity of the LFN entry and compare it with given name */
emh203	0:76427232f435	1390	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
emh203	0:76427232f435	1391	}
emh203	0:76427232f435	1392	} else { /* An SFN entry is found */
emh203	0:76427232f435	1393	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
emh203	0:76427232f435	1394	ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */
emh203	0:76427232f435	1395	if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */
emh203	0:76427232f435	1396	}
emh203	0:76427232f435	1397	}
emh203	0:76427232f435	1398	#else /* Non LFN configuration */
emh203	0:76427232f435	1399	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
emh203	0:76427232f435	1400	break;
emh203	0:76427232f435	1401	#endif
emh203	0:76427232f435	1402	res = dir_next(dj, 0); /* Next entry */
emh203	0:76427232f435	1403	} while (res == FR_OK);
emh203	0:76427232f435	1404
emh203	0:76427232f435	1405	return res;
emh203	0:76427232f435	1406	}
emh203	0:76427232f435	1407
emh203	0:76427232f435	1408
emh203	0:76427232f435	1409
emh203	0:76427232f435	1410
emh203	0:76427232f435	1411	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1412	/* Read an object from the directory */
emh203	0:76427232f435	1413	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1414	#if _FS_MINIMIZE <= 1
emh203	0:76427232f435	1415	static
emh203	0:76427232f435	1416	FRESULT dir_read (
emh203	0:76427232f435	1417	eDIR dj / Pointer to the directory object that pointing the entry to be read */
emh203	0:76427232f435	1418	)
emh203	0:76427232f435	1419	{
emh203	0:76427232f435	1420	FRESULT res;
emh203	0:76427232f435	1421	BYTE c, *dir;
emh203	0:76427232f435	1422	#if _USE_LFN
emh203	0:76427232f435	1423	BYTE a, ord = 0xFF, sum = 0xFF;
emh203	0:76427232f435	1424	#endif
emh203	0:76427232f435	1425
emh203	0:76427232f435	1426	res = FR_NO_FILE;
emh203	0:76427232f435	1427	while (dj->sect) {
emh203	0:76427232f435	1428	res = move_window(dj->fs, dj->sect);
emh203	0:76427232f435	1429	if (res != FR_OK) break;
emh203	0:76427232f435	1430	dir = dj->dir; /* Ptr to the directory entry of current index */
emh203	0:76427232f435	1431	c = dir[DIR_Name];
emh203	0:76427232f435	1432	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
emh203	0:76427232f435	1433	#if _USE_LFN /* LFN configuration */
emh203	0:76427232f435	1434	a = dir[DIR_Attr] & AM_MASK;
emh203	0:76427232f435	1435	if (c == DDE \|\| (!_FS_RPATH && c == '.') \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
emh203	0:76427232f435	1436	ord = 0xFF;
emh203	0:76427232f435	1437	} else {
emh203	0:76427232f435	1438	if (a == AM_LFN) { /* An LFN entry is found */
emh203	0:76427232f435	1439	if (c & LLE) { /* Is it start of LFN sequence? */
emh203	0:76427232f435	1440	sum = dir[LDIR_Chksum];
emh203	0:76427232f435	1441	c &= ~LLE; ord = c;
emh203	0:76427232f435	1442	dj->lfn_idx = dj->index;
emh203	0:76427232f435	1443	}
emh203	0:76427232f435	1444	/* Check LFN validity and capture it */
emh203	0:76427232f435	1445	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
emh203	0:76427232f435	1446	} else { /* An SFN entry is found */
emh203	0:76427232f435	1447	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
emh203	0:76427232f435	1448	dj->lfn_idx = 0xFFFF; /* It has no LFN. */
emh203	0:76427232f435	1449	break;
emh203	0:76427232f435	1450	}
emh203	0:76427232f435	1451	}
emh203	0:76427232f435	1452	#else /* Non LFN configuration */
emh203	0:76427232f435	1453	if (c != DDE && (_FS_RPATH \|\| c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
emh203	0:76427232f435	1454	break;
emh203	0:76427232f435	1455	#endif
emh203	0:76427232f435	1456	res = dir_next(dj, 0); /* Next entry */
emh203	0:76427232f435	1457	if (res != FR_OK) break;
emh203	0:76427232f435	1458	}
emh203	0:76427232f435	1459
emh203	0:76427232f435	1460	if (res != FR_OK) dj->sect = 0;
emh203	0:76427232f435	1461
emh203	0:76427232f435	1462	return res;
emh203	0:76427232f435	1463	}
emh203	0:76427232f435	1464	#endif
emh203	0:76427232f435	1465
emh203	0:76427232f435	1466
emh203	0:76427232f435	1467
emh203	0:76427232f435	1468	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1469	/* Register an object to the directory */
emh203	0:76427232f435	1470	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1471	#if !_FS_READONLY
emh203	0:76427232f435	1472	static
emh203	0:76427232f435	1473	FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
emh203	0:76427232f435	1474	eDIR dj / Target directory with object name to be created */
emh203	0:76427232f435	1475	)
emh203	0:76427232f435	1476	{
emh203	0:76427232f435	1477	FRESULT res;
emh203	0:76427232f435	1478	BYTE c, *dir;
emh203	0:76427232f435	1479	#if _USE_LFN /* LFN configuration */
emh203	0:76427232f435	1480	WORD n, ne, is;
emh203	0:76427232f435	1481	BYTE sn[12], *fn, sum;
emh203	0:76427232f435	1482	WCHAR *lfn;
emh203	0:76427232f435	1483
emh203	0:76427232f435	1484
emh203	0:76427232f435	1485	fn = dj->fn; lfn = dj->lfn;
emh203	0:76427232f435	1486	mem_cpy(sn, fn, 12);
emh203	0:76427232f435	1487
emh203	0:76427232f435	1488	if (_FS_RPATH && (sn[NS] & NS_DOT)) /* Cannot create dot entry */
emh203	0:76427232f435	1489	return FR_INVALID_NAME;
emh203	0:76427232f435	1490
emh203	0:76427232f435	1491	if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
emh203	0:76427232f435	1492	fn[NS] = 0; dj->lfn = 0; /* Find only SFN */
emh203	0:76427232f435	1493	for (n = 1; n < 100; n++) {
emh203	0:76427232f435	1494	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
emh203	0:76427232f435	1495	res = dir_find(dj); /* Check if the name collides with existing SFN */
emh203	0:76427232f435	1496	if (res != FR_OK) break;
emh203	0:76427232f435	1497	}
emh203	0:76427232f435	1498	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
emh203	0:76427232f435	1499	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
emh203	0:76427232f435	1500	fn[NS] = sn[NS]; dj->lfn = lfn;
emh203	0:76427232f435	1501	}
emh203	0:76427232f435	1502
emh203	0:76427232f435	1503	if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve an SFN + LFN entries. */
emh203	0:76427232f435	1504	for (ne = 0; lfn[ne]; ne++) ;
emh203	0:76427232f435	1505	ne = (ne + 25) / 13;
emh203	0:76427232f435	1506	} else { /* Otherwise reserve only an SFN entry. */
emh203	0:76427232f435	1507	ne = 1;
emh203	0:76427232f435	1508	}
emh203	0:76427232f435	1509
emh203	0:76427232f435	1510	/* Reserve contiguous entries */
emh203	0:76427232f435	1511	res = dir_sdi(dj, 0);
emh203	0:76427232f435	1512	if (res != FR_OK) return res;
emh203	0:76427232f435	1513	n = is = 0;
emh203	0:76427232f435	1514	do {
emh203	0:76427232f435	1515	res = move_window(dj->fs, dj->sect);
emh203	0:76427232f435	1516	if (res != FR_OK) break;
emh203	0:76427232f435	1517	c = dj->dir; / Check the entry status */
emh203	0:76427232f435	1518	if (c == DDE \|\| c == 0) { /* Is it a blank entry? */
emh203	0:76427232f435	1519	if (n == 0) is = dj->index; /* First index of the contiguous entry */
emh203	0:76427232f435	1520	if (++n == ne) break; /* A contiguous entry that required count is found */
emh203	0:76427232f435	1521	} else {
emh203	0:76427232f435	1522	n = 0; /* Not a blank entry. Restart to search */
emh203	0:76427232f435	1523	}
emh203	0:76427232f435	1524	res = dir_next(dj, 1); /* Next entry with table stretch */
emh203	0:76427232f435	1525	} while (res == FR_OK);
emh203	0:76427232f435	1526
emh203	0:76427232f435	1527	if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */
emh203	0:76427232f435	1528	res = dir_sdi(dj, is);
emh203	0:76427232f435	1529	if (res == FR_OK) {
emh203	0:76427232f435	1530	sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */
emh203	0:76427232f435	1531	ne--;
emh203	0:76427232f435	1532	do { /* Store LFN entries in bottom first */
emh203	0:76427232f435	1533	res = move_window(dj->fs, dj->sect);
emh203	0:76427232f435	1534	if (res != FR_OK) break;
emh203	0:76427232f435	1535	fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
emh203	0:76427232f435	1536	dj->fs->wflag = 1;
emh203	0:76427232f435	1537	res = dir_next(dj, 0); /* Next entry */
emh203	0:76427232f435	1538	} while (res == FR_OK && --ne);
emh203	0:76427232f435	1539	}
emh203	0:76427232f435	1540	}
emh203	0:76427232f435	1541
emh203	0:76427232f435	1542	#else /* Non LFN configuration */
emh203	0:76427232f435	1543	res = dir_sdi(dj, 0);
emh203	0:76427232f435	1544	if (res == FR_OK) {
emh203	0:76427232f435	1545	do { /* Find a blank entry for the SFN */
emh203	0:76427232f435	1546	res = move_window(dj->fs, dj->sect);
emh203	0:76427232f435	1547	if (res != FR_OK) break;
emh203	0:76427232f435	1548	c = *dj->dir;
emh203	0:76427232f435	1549	if (c == DDE \|\| c == 0) break; /* Is it a blank entry? */
emh203	0:76427232f435	1550	res = dir_next(dj, 1); /* Next entry with table stretch */
emh203	0:76427232f435	1551	} while (res == FR_OK);
emh203	0:76427232f435	1552	}
emh203	0:76427232f435	1553	#endif
emh203	0:76427232f435	1554
emh203	0:76427232f435	1555	if (res == FR_OK) { /* Initialize the SFN entry */
emh203	0:76427232f435	1556	res = move_window(dj->fs, dj->sect);
emh203	0:76427232f435	1557	if (res == FR_OK) {
emh203	0:76427232f435	1558	dir = dj->dir;
emh203	0:76427232f435	1559	mem_set(dir, 0, SZ_DIR); /* Clean the entry */
emh203	0:76427232f435	1560	mem_cpy(dir, dj->fn, 11); /* Put SFN */
emh203	0:76427232f435	1561	#if _USE_LFN
emh203	0:76427232f435	1562	dir[DIR_NTres] = (dj->fn+NS) & (NS_BODY \| NS_EXT); / Put NT flag */
emh203	0:76427232f435	1563	#endif
emh203	0:76427232f435	1564	dj->fs->wflag = 1;
emh203	0:76427232f435	1565	}
emh203	0:76427232f435	1566	}
emh203	0:76427232f435	1567
emh203	0:76427232f435	1568	return res;
emh203	0:76427232f435	1569	}
emh203	0:76427232f435	1570	#endif /* !_FS_READONLY */
emh203	0:76427232f435	1571
emh203	0:76427232f435	1572
emh203	0:76427232f435	1573
emh203	0:76427232f435	1574
emh203	0:76427232f435	1575	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1576	/* Remove an object from the directory */
emh203	0:76427232f435	1577	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1578	#if !_FS_READONLY && !_FS_MINIMIZE
emh203	0:76427232f435	1579	static
emh203	0:76427232f435	1580	FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
emh203	0:76427232f435	1581	eDIR dj / Directory object pointing the entry to be removed */
emh203	0:76427232f435	1582	)
emh203	0:76427232f435	1583	{
emh203	0:76427232f435	1584	FRESULT res;
emh203	0:76427232f435	1585	#if _USE_LFN /* LFN configuration */
emh203	0:76427232f435	1586	WORD i;
emh203	0:76427232f435	1587
emh203	0:76427232f435	1588	i = dj->index; /* SFN index */
emh203	0:76427232f435	1589	res = dir_sdi(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */
emh203	0:76427232f435	1590	if (res == FR_OK) {
emh203	0:76427232f435	1591	do {
emh203	0:76427232f435	1592	res = move_window(dj->fs, dj->sect);
emh203	0:76427232f435	1593	if (res != FR_OK) break;
emh203	0:76427232f435	1594	dj->dir = DDE; / Mark the entry "deleted" */
emh203	0:76427232f435	1595	dj->fs->wflag = 1;
emh203	0:76427232f435	1596	if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
emh203	0:76427232f435	1597	res = dir_next(dj, 0); /* Next entry */
emh203	0:76427232f435	1598	} while (res == FR_OK);
emh203	0:76427232f435	1599	if (res == FR_NO_FILE) res = FR_INT_ERR;
emh203	0:76427232f435	1600	}
emh203	0:76427232f435	1601
emh203	0:76427232f435	1602	#else /* Non LFN configuration */
emh203	0:76427232f435	1603	res = dir_sdi(dj, dj->index);
emh203	0:76427232f435	1604	if (res == FR_OK) {
emh203	0:76427232f435	1605	res = move_window(dj->fs, dj->sect);
emh203	0:76427232f435	1606	if (res == FR_OK) {
emh203	0:76427232f435	1607	dj->dir = DDE; / Mark the entry "deleted" */
emh203	0:76427232f435	1608	dj->fs->wflag = 1;
emh203	0:76427232f435	1609	}
emh203	0:76427232f435	1610	}
emh203	0:76427232f435	1611	#endif
emh203	0:76427232f435	1612
emh203	0:76427232f435	1613	return res;
emh203	0:76427232f435	1614	}
emh203	0:76427232f435	1615	#endif /* !_FS_READONLY */
emh203	0:76427232f435	1616
emh203	0:76427232f435	1617
emh203	0:76427232f435	1618
emh203	0:76427232f435	1619
emh203	0:76427232f435	1620	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1621	/* Pick a segment and create the object name in directory form */
emh203	0:76427232f435	1622	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1623
emh203	0:76427232f435	1624	static
emh203	0:76427232f435	1625	FRESULT create_name (
emh203	0:76427232f435	1626	eDIR dj, / Pointer to the directory object */
emh203	0:76427232f435	1627	const TCHAR *path / Pointer to pointer to the segment in the path string */
emh203	0:76427232f435	1628	)
emh203	0:76427232f435	1629	{
emh203	0:76427232f435	1630	#ifdef _EXCVT
emh203	0:76427232f435	1631	static const BYTE excvt[] = _EXCVT; /* Upper conversion table for extended chars */
emh203	0:76427232f435	1632	#endif
emh203	0:76427232f435	1633
emh203	0:76427232f435	1634	#if _USE_LFN /* LFN configuration */
emh203	0:76427232f435	1635	BYTE b, cf;
emh203	0:76427232f435	1636	WCHAR w, *lfn;
emh203	0:76427232f435	1637	UINT i, ni, si, di;
emh203	0:76427232f435	1638	const TCHAR *p;
emh203	0:76427232f435	1639
emh203	0:76427232f435	1640	/* Create LFN in Unicode */
emh203	0:76427232f435	1641	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
emh203	0:76427232f435	1642	lfn = dj->lfn;
emh203	0:76427232f435	1643	si = di = 0;
emh203	0:76427232f435	1644	for (;;) {
emh203	0:76427232f435	1645	w = p[si++]; /* Get a character */
emh203	0:76427232f435	1646	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
emh203	0:76427232f435	1647	if (di >= _MAX_LFN) /* Reject too long name */
emh203	0:76427232f435	1648	return FR_INVALID_NAME;
emh203	0:76427232f435	1649	#if !_LFN_UNICODE
emh203	0:76427232f435	1650	w &= 0xFF;
emh203	0:76427232f435	1651	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
emh203	0:76427232f435	1652	b = (BYTE)p[si++]; /* Get 2nd byte */
emh203	0:76427232f435	1653	if (!IsDBCS2(b))
emh203	0:76427232f435	1654	return FR_INVALID_NAME; /* Reject invalid sequence */
emh203	0:76427232f435	1655	w = (w << 8) + b; /* Create a DBC */
emh203	0:76427232f435	1656	}
emh203	0:76427232f435	1657	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
emh203	0:76427232f435	1658	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
emh203	0:76427232f435	1659	#endif
emh203	0:76427232f435	1660	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal chars for LFN */
emh203	0:76427232f435	1661	return FR_INVALID_NAME;
emh203	0:76427232f435	1662	lfn[di++] = w; /* Store the Unicode char */
emh203	0:76427232f435	1663	}
emh203	0:76427232f435	1664	path = &p[si]; / Return pointer to the next segment */
emh203	0:76427232f435	1665	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
emh203	0:76427232f435	1666	#if _FS_RPATH
emh203	0:76427232f435	1667	if ((di == 1 && lfn[di-1] == '.') \|\| /* Is this a dot entry? */
emh203	0:76427232f435	1668	(di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
emh203	0:76427232f435	1669	lfn[di] = 0;
emh203	0:76427232f435	1670	for (i = 0; i < 11; i++)
emh203	0:76427232f435	1671	dj->fn[i] = (i < di) ? '.' : ' ';
emh203	0:76427232f435	1672	dj->fn[i] = cf \| NS_DOT; /* This is a dot entry */
emh203	0:76427232f435	1673	return FR_OK;
emh203	0:76427232f435	1674	}
emh203	0:76427232f435	1675	#endif
emh203	0:76427232f435	1676	while (di) { /* Strip trailing spaces and dots */
emh203	0:76427232f435	1677	w = lfn[di-1];
emh203	0:76427232f435	1678	if (w != ' ' && w != '.') break;
emh203	0:76427232f435	1679	di--;
emh203	0:76427232f435	1680	}
emh203	0:76427232f435	1681	if (!di) return FR_INVALID_NAME; /* Reject nul string */
emh203	0:76427232f435	1682
emh203	0:76427232f435	1683	lfn[di] = 0; /* LFN is created */
emh203	0:76427232f435	1684
emh203	0:76427232f435	1685	/* Create SFN in directory form */
emh203	0:76427232f435	1686	mem_set(dj->fn, ' ', 11);
emh203	0:76427232f435	1687	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
emh203	0:76427232f435	1688	if (si) cf \|= NS_LOSS \| NS_LFN;
emh203	0:76427232f435	1689	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
emh203	0:76427232f435	1690
emh203	0:76427232f435	1691	b = i = 0; ni = 8;
emh203	0:76427232f435	1692	for (;;) {
emh203	0:76427232f435	1693	w = lfn[si++]; /* Get an LFN char */
emh203	0:76427232f435	1694	if (!w) break; /* Break on end of the LFN */
emh203	0:76427232f435	1695	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
emh203	0:76427232f435	1696	cf \|= NS_LOSS \| NS_LFN; continue;
emh203	0:76427232f435	1697	}
emh203	0:76427232f435	1698
emh203	0:76427232f435	1699	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
emh203	0:76427232f435	1700	if (ni == 11) { /* Long extension */
emh203	0:76427232f435	1701	cf \|= NS_LOSS \| NS_LFN; break;
emh203	0:76427232f435	1702	}
emh203	0:76427232f435	1703	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
emh203	0:76427232f435	1704	if (si > di) break; /* No extension */
emh203	0:76427232f435	1705	si = di; i = 8; ni = 11; /* Enter extension section */
emh203	0:76427232f435	1706	b <<= 2; continue;
emh203	0:76427232f435	1707	}
emh203	0:76427232f435	1708
emh203	0:76427232f435	1709	if (w >= 0x80) { /* Non ASCII char */
emh203	0:76427232f435	1710	#ifdef _EXCVT
emh203	0:76427232f435	1711	w = ff_convert(w, 0); /* Unicode -> OEM code */
emh203	0:76427232f435	1712	if (w) w = excvt[w - 0x80]; /* Convert extended char to upper (SBCS) */
emh203	0:76427232f435	1713	#else
emh203	0:76427232f435	1714	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
emh203	0:76427232f435	1715	#endif
emh203	0:76427232f435	1716	cf \|= NS_LFN; /* Force create LFN entry */
emh203	0:76427232f435	1717	}
emh203	0:76427232f435	1718
emh203	0:76427232f435	1719	if (_DF1S && w >= 0x100) { /* Double byte char (always false on SBCS cfg) */
emh203	0:76427232f435	1720	if (i >= ni - 1) {
emh203	0:76427232f435	1721	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
emh203	0:76427232f435	1722	}
emh203	0:76427232f435	1723	dj->fn[i++] = (BYTE)(w >> 8);
emh203	0:76427232f435	1724	} else { /* Single byte char */
emh203	0:76427232f435	1725	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal chars for SFN */
emh203	0:76427232f435	1726	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
emh203	0:76427232f435	1727	} else {
emh203	0:76427232f435	1728	if (IsUpper(w)) { /* ASCII large capital */
emh203	0:76427232f435	1729	b \|= 2;
emh203	0:76427232f435	1730	} else {
emh203	0:76427232f435	1731	if (IsLower(w)) { /* ASCII small capital */
emh203	0:76427232f435	1732	b \|= 1; w -= 0x20;
emh203	0:76427232f435	1733	}
emh203	0:76427232f435	1734	}
emh203	0:76427232f435	1735	}
emh203	0:76427232f435	1736	}
emh203	0:76427232f435	1737	dj->fn[i++] = (BYTE)w;
emh203	0:76427232f435	1738	}
emh203	0:76427232f435	1739
emh203	0:76427232f435	1740	if (dj->fn[0] == DDE) dj->fn[0] = NDDE; /* If the first char collides with deleted mark, replace it with 0x05 */
emh203	0:76427232f435	1741
emh203	0:76427232f435	1742	if (ni == 8) b <<= 2;
emh203	0:76427232f435	1743	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
emh203	0:76427232f435	1744	cf \|= NS_LFN;
emh203	0:76427232f435	1745	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */
emh203	0:76427232f435	1746	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
emh203	0:76427232f435	1747	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
emh203	0:76427232f435	1748	}
emh203	0:76427232f435	1749
emh203	0:76427232f435	1750	dj->fn[NS] = cf; /* SFN is created */
emh203	0:76427232f435	1751
emh203	0:76427232f435	1752	return FR_OK;
emh203	0:76427232f435	1753
emh203	0:76427232f435	1754
emh203	0:76427232f435	1755	#else /* Non-LFN configuration */
emh203	0:76427232f435	1756	BYTE b, c, d, *sfn;
emh203	0:76427232f435	1757	UINT ni, si, i;
emh203	0:76427232f435	1758	const char *p;
emh203	0:76427232f435	1759
emh203	0:76427232f435	1760	/* Create file name in directory form */
emh203	0:76427232f435	1761	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
emh203	0:76427232f435	1762	sfn = dj->fn;
emh203	0:76427232f435	1763	mem_set(sfn, ' ', 11);
emh203	0:76427232f435	1764	si = i = b = 0; ni = 8;
emh203	0:76427232f435	1765	#if _FS_RPATH
emh203	0:76427232f435	1766	if (p[si] == '.') { /* Is this a dot entry? */
emh203	0:76427232f435	1767	for (;;) {
emh203	0:76427232f435	1768	c = (BYTE)p[si++];
emh203	0:76427232f435	1769	if (c != '.' \|\| si >= 3) break;
emh203	0:76427232f435	1770	sfn[i++] = c;
emh203	0:76427232f435	1771	}
emh203	0:76427232f435	1772	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
emh203	0:76427232f435	1773	path = &p[si]; / Return pointer to the next segment */
emh203	0:76427232f435	1774	sfn[NS] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
emh203	0:76427232f435	1775	return FR_OK;
emh203	0:76427232f435	1776	}
emh203	0:76427232f435	1777	#endif
emh203	0:76427232f435	1778	for (;;) {
emh203	0:76427232f435	1779	c = (BYTE)p[si++];
emh203	0:76427232f435	1780	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
emh203	0:76427232f435	1781	if (c == '.' \|\| i >= ni) {
emh203	0:76427232f435	1782	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
emh203	0:76427232f435	1783	i = 8; ni = 11;
emh203	0:76427232f435	1784	b <<= 2; continue;
emh203	0:76427232f435	1785	}
emh203	0:76427232f435	1786	if (c >= 0x80) { /* Extended char? */
emh203	0:76427232f435	1787	b \|= 3; /* Eliminate NT flag */
emh203	0:76427232f435	1788	#ifdef _EXCVT
emh203	0:76427232f435	1789	c = excvt[c-0x80]; /* Upper conversion (SBCS) */
emh203	0:76427232f435	1790	#else
emh203	0:76427232f435	1791	#if !_DF1S /* ASCII only cfg */
emh203	0:76427232f435	1792	return FR_INVALID_NAME;
emh203	0:76427232f435	1793	#endif
emh203	0:76427232f435	1794	#endif
emh203	0:76427232f435	1795	}
emh203	0:76427232f435	1796	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
emh203	0:76427232f435	1797	d = (BYTE)p[si++]; /* Get 2nd byte */
emh203	0:76427232f435	1798	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
emh203	0:76427232f435	1799	return FR_INVALID_NAME;
emh203	0:76427232f435	1800	sfn[i++] = c;
emh203	0:76427232f435	1801	sfn[i++] = d;
emh203	0:76427232f435	1802	} else { /* Single byte code */
emh203	0:76427232f435	1803	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
emh203	0:76427232f435	1804	return FR_INVALID_NAME;
emh203	0:76427232f435	1805	if (IsUpper(c)) { /* ASCII large capital? */
emh203	0:76427232f435	1806	b \|= 2;
emh203	0:76427232f435	1807	} else {
emh203	0:76427232f435	1808	if (IsLower(c)) { /* ASCII small capital? */
emh203	0:76427232f435	1809	b \|= 1; c -= 0x20;
emh203	0:76427232f435	1810	}
emh203	0:76427232f435	1811	}
emh203	0:76427232f435	1812	sfn[i++] = c;
emh203	0:76427232f435	1813	}
emh203	0:76427232f435	1814	}
emh203	0:76427232f435	1815	path = &p[si]; / Return pointer to the next segment */
emh203	0:76427232f435	1816	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
emh203	0:76427232f435	1817
emh203	0:76427232f435	1818	if (!i) return FR_INVALID_NAME; /* Reject nul string */
emh203	0:76427232f435	1819	if (sfn[0] == DDE) sfn[0] = NDDE; /* When first char collides with DDE, replace it with 0x05 */
emh203	0:76427232f435	1820
emh203	0:76427232f435	1821	if (ni == 8) b <<= 2;
emh203	0:76427232f435	1822	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
emh203	0:76427232f435	1823	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
emh203	0:76427232f435	1824
emh203	0:76427232f435	1825	sfn[NS] = c; /* Store NT flag, File name is created */
emh203	0:76427232f435	1826
emh203	0:76427232f435	1827	return FR_OK;
emh203	0:76427232f435	1828	#endif
emh203	0:76427232f435	1829	}
emh203	0:76427232f435	1830
emh203	0:76427232f435	1831
emh203	0:76427232f435	1832
emh203	0:76427232f435	1833
emh203	0:76427232f435	1834	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1835	/* Get file information from directory entry */
emh203	0:76427232f435	1836	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1837	#if _FS_MINIMIZE <= 1
emh203	0:76427232f435	1838	static
emh203	0:76427232f435	1839	void get_fileinfo ( /* No return code */
emh203	0:76427232f435	1840	eDIR dj, / Pointer to the directory object */
emh203	0:76427232f435	1841	FILINFO fno / Pointer to the file information to be filled */
emh203	0:76427232f435	1842	)
emh203	0:76427232f435	1843	{
emh203	0:76427232f435	1844	UINT i;
emh203	0:76427232f435	1845	BYTE nt, *dir;
emh203	0:76427232f435	1846	TCHAR *p, c;
emh203	0:76427232f435	1847
emh203	0:76427232f435	1848
emh203	0:76427232f435	1849	p = fno->fname;
emh203	0:76427232f435	1850	if (dj->sect) {
emh203	0:76427232f435	1851	dir = dj->dir;
emh203	0:76427232f435	1852	nt = dir[DIR_NTres]; /* NT flag */
emh203	0:76427232f435	1853	for (i = 0; i < 8; i++) { /* Copy name body */
emh203	0:76427232f435	1854	c = dir[i];
emh203	0:76427232f435	1855	if (c == ' ') break;
emh203	0:76427232f435	1856	if (c == NDDE) c = (TCHAR)DDE;
emh203	0:76427232f435	1857	if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
emh203	0:76427232f435	1858	#if _LFN_UNICODE
emh203	0:76427232f435	1859	if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i+1]))
emh203	0:76427232f435	1860	c = (c << 8) \| dir[++i];
emh203	0:76427232f435	1861	c = ff_convert(c, 1);
emh203	0:76427232f435	1862	if (!c) c = '?';
emh203	0:76427232f435	1863	#endif
emh203	0:76427232f435	1864	*p++ = c;
emh203	0:76427232f435	1865	}
emh203	0:76427232f435	1866	if (dir[8] != ' ') { /* Copy name extension */
emh203	0:76427232f435	1867	*p++ = '.';
emh203	0:76427232f435	1868	for (i = 8; i < 11; i++) {
emh203	0:76427232f435	1869	c = dir[i];
emh203	0:76427232f435	1870	if (c == ' ') break;
emh203	0:76427232f435	1871	if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
emh203	0:76427232f435	1872	#if _LFN_UNICODE
emh203	0:76427232f435	1873	if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i+1]))
emh203	0:76427232f435	1874	c = (c << 8) \| dir[++i];
emh203	0:76427232f435	1875	c = ff_convert(c, 1);
emh203	0:76427232f435	1876	if (!c) c = '?';
emh203	0:76427232f435	1877	#endif
emh203	0:76427232f435	1878	*p++ = c;
emh203	0:76427232f435	1879	}
emh203	0:76427232f435	1880	}
emh203	0:76427232f435	1881	fno->fattrib = dir[DIR_Attr]; /* Attribute */
emh203	0:76427232f435	1882	fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
emh203	0:76427232f435	1883	fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
emh203	0:76427232f435	1884	fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
emh203	0:76427232f435	1885	}
emh203	0:76427232f435	1886	p = 0; / Terminate SFN str by a \0 */
emh203	0:76427232f435	1887
emh203	0:76427232f435	1888	#if _USE_LFN
emh203	0:76427232f435	1889	if (fno->lfname && fno->lfsize) {
emh203	0:76427232f435	1890	TCHAR *tp = fno->lfname;
emh203	0:76427232f435	1891	WCHAR w, *lfn;
emh203	0:76427232f435	1892
emh203	0:76427232f435	1893	i = 0;
emh203	0:76427232f435	1894	if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
emh203	0:76427232f435	1895	lfn = dj->lfn;
emh203	0:76427232f435	1896	while ((w = lfn++) != 0) { / Get an LFN char */
emh203	0:76427232f435	1897	#if !_LFN_UNICODE
emh203	0:76427232f435	1898	w = ff_convert(w, 0); /* Unicode -> OEM conversion */
emh203	0:76427232f435	1899	if (!w) { i = 0; break; } /* Could not convert, no LFN */
emh203	0:76427232f435	1900	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
emh203	0:76427232f435	1901	tp[i++] = (TCHAR)(w >> 8);
emh203	0:76427232f435	1902	#endif
emh203	0:76427232f435	1903	if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overflow, no LFN */
emh203	0:76427232f435	1904	tp[i++] = (TCHAR)w;
emh203	0:76427232f435	1905	}
emh203	0:76427232f435	1906	}
emh203	0:76427232f435	1907	tp[i] = 0; /* Terminate the LFN str by a \0 */
emh203	0:76427232f435	1908	}
emh203	0:76427232f435	1909	#endif
emh203	0:76427232f435	1910	}
emh203	0:76427232f435	1911	#endif /* _FS_MINIMIZE <= 1 */
emh203	0:76427232f435	1912
emh203	0:76427232f435	1913
emh203	0:76427232f435	1914
emh203	0:76427232f435	1915
emh203	0:76427232f435	1916	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1917	/* Follow a file path */
emh203	0:76427232f435	1918	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1919
emh203	0:76427232f435	1920	static
emh203	0:76427232f435	1921	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
emh203	0:76427232f435	1922	eDIR dj, / Directory object to return last directory and found object */
emh203	0:76427232f435	1923	const TCHAR path / Full-path string to find a file or directory */
emh203	0:76427232f435	1924	)
emh203	0:76427232f435	1925	{
emh203	0:76427232f435	1926	FRESULT res;
emh203	0:76427232f435	1927	BYTE *dir, ns;
emh203	0:76427232f435	1928
emh203	0:76427232f435	1929
emh203	0:76427232f435	1930	#if _FS_RPATH
emh203	0:76427232f435	1931	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
emh203	0:76427232f435	1932	path++; dj->sclust = 0; /* Strip it and start from the root dir */
emh203	0:76427232f435	1933	} else { /* No heading separator */
emh203	0:76427232f435	1934	dj->sclust = dj->fs->cdir; /* Start from the current dir */
emh203	0:76427232f435	1935	}
emh203	0:76427232f435	1936	#else
emh203	0:76427232f435	1937	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
emh203	0:76427232f435	1938	path++;
emh203	0:76427232f435	1939	dj->sclust = 0; /* Start from the root dir */
emh203	0:76427232f435	1940	#endif
emh203	0:76427232f435	1941
emh203	0:76427232f435	1942	if ((UINT)path < ' ') { / Nul path means the start directory itself */
emh203	0:76427232f435	1943	res = dir_sdi(dj, 0);
emh203	0:76427232f435	1944	dj->dir = 0;
emh203	0:76427232f435	1945
emh203	0:76427232f435	1946	} else { /* Follow path */
emh203	0:76427232f435	1947	for (;;) {
emh203	0:76427232f435	1948	res = create_name(dj, &path); /* Get a segment */
emh203	0:76427232f435	1949	if (res != FR_OK) break;
emh203	0:76427232f435	1950	res = dir_find(dj); /* Find it */
emh203	0:76427232f435	1951	ns = *(dj->fn+NS);
emh203	0:76427232f435	1952	if (res != FR_OK) { /* Failed to find the object */
emh203	0:76427232f435	1953	if (res != FR_NO_FILE) break; /* Abort if any hard error occured */
emh203	0:76427232f435	1954	/* Object not found */
emh203	0:76427232f435	1955	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exit */
emh203	0:76427232f435	1956	dj->sclust = 0; dj->dir = 0; /* It is the root dir */
emh203	0:76427232f435	1957	res = FR_OK;
emh203	0:76427232f435	1958	if (!(ns & NS_LAST)) continue;
emh203	0:76427232f435	1959	} else { /* Could not find the object */
emh203	0:76427232f435	1960	if (!(ns & NS_LAST)) res = FR_NO_PATH;
emh203	0:76427232f435	1961	}
emh203	0:76427232f435	1962	break;
emh203	0:76427232f435	1963	}
emh203	0:76427232f435	1964	if (ns & NS_LAST) break; /* Last segment match. Function completed. */
emh203	0:76427232f435	1965	dir = dj->dir; /* There is next segment. Follow the sub directory */
emh203	0:76427232f435	1966	if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
emh203	0:76427232f435	1967	res = FR_NO_PATH; break;
emh203	0:76427232f435	1968	}
emh203	0:76427232f435	1969	dj->sclust = LD_CLUST(dir);
emh203	0:76427232f435	1970	}
emh203	0:76427232f435	1971	}
emh203	0:76427232f435	1972
emh203	0:76427232f435	1973	return res;
emh203	0:76427232f435	1974	}
emh203	0:76427232f435	1975
emh203	0:76427232f435	1976
emh203	0:76427232f435	1977
emh203	0:76427232f435	1978
emh203	0:76427232f435	1979	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1980	/* Load a sector and check if it is an FAT Volume Boot Record */
emh203	0:76427232f435	1981	/-----------------------------------------------------------------------/
emh203	0:76427232f435	1982
emh203	0:76427232f435	1983	static
emh203	0:76427232f435	1984	BYTE check_fs ( /* 0:FAT-VBR, 1:Valid BR but not FAT, 2:Not a BR, 3:Disk error */
emh203	0:76427232f435	1985	FATFS fs, / File system object */
emh203	0:76427232f435	1986	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
emh203	0:76427232f435	1987	)
emh203	0:76427232f435	1988	{
emh203	0:76427232f435	1989	if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK) /* Load boot record */
emh203	0:76427232f435	1990	return 3;
emh203	0:76427232f435	1991	if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
emh203	0:76427232f435	1992	return 2;
emh203	0:76427232f435	1993
emh203	0:76427232f435	1994	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
emh203	0:76427232f435	1995	return 0;
emh203	0:76427232f435	1996	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
emh203	0:76427232f435	1997	return 0;
emh203	0:76427232f435	1998
emh203	0:76427232f435	1999	return 1;
emh203	0:76427232f435	2000	}
emh203	0:76427232f435	2001
emh203	0:76427232f435	2002
emh203	0:76427232f435	2003
emh203	0:76427232f435	2004
emh203	0:76427232f435	2005	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2006	/* Check if the file system object is valid or not */
emh203	0:76427232f435	2007	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2008
emh203	0:76427232f435	2009	static
emh203	0:76427232f435	2010	FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occurred */
emh203	0:76427232f435	2011	const TCHAR *path, / Pointer to pointer to the path name (drive number) */
emh203	0:76427232f435	2012	FATFS *rfs, / Pointer to pointer to the found file system object */
emh203	0:76427232f435	2013	BYTE chk_wp /* !=0: Check media write protection for write access */
emh203	0:76427232f435	2014	)
emh203	0:76427232f435	2015	{
emh203	0:76427232f435	2016	BYTE fmt, b, pi, *tbl;
emh203	0:76427232f435	2017	UINT vol;
emh203	0:76427232f435	2018	DSTATUS stat;
emh203	0:76427232f435	2019	DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
emh203	0:76427232f435	2020	WORD nrsv;
emh203	0:76427232f435	2021	const TCHAR p = path;
emh203	0:76427232f435	2022	FATFS *fs;
emh203	0:76427232f435	2023
emh203	0:76427232f435	2024	/* Get logical drive number from the path name */
emh203	0:76427232f435	2025	vol = p[0] - '0'; /* Is there a drive number? */
emh203	0:76427232f435	2026	if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */
emh203	0:76427232f435	2027	p += 2; path = p; / Return pointer to the path name */
emh203	0:76427232f435	2028	} else { /* No drive number is given */
emh203	0:76427232f435	2029	#if _FS_RPATH
emh203	0:76427232f435	2030	vol = CurrVol; /* Use current drive */
emh203	0:76427232f435	2031	#else
emh203	0:76427232f435	2032	vol = 0; /* Use drive 0 */
emh203	0:76427232f435	2033	#endif
emh203	0:76427232f435	2034	}
emh203	0:76427232f435	2035
emh203	0:76427232f435	2036	/* Check if the file system object is valid or not */
emh203	0:76427232f435	2037	if (vol >= _VOLUMES) /* Is the drive number valid? */
emh203	0:76427232f435	2038	return FR_INVALID_DRIVE;
emh203	0:76427232f435	2039	rfs = fs = FatFs[vol]; / Return pointer to the corresponding file system object */
emh203	0:76427232f435	2040	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
emh203	0:76427232f435	2041
emh203	0:76427232f435	2042	ENTER_FF(fs); /* Lock file system */
emh203	0:76427232f435	2043
emh203	0:76427232f435	2044	if (fs->fs_type) { /* If the logical drive has been mounted */
emh203	0:76427232f435	2045	stat = disk_status(fs->drv);
emh203	0:76427232f435	2046	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */
emh203	0:76427232f435	2047	if (!_FS_READONLY && chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */
emh203	0:76427232f435	2048	return FR_WRITE_PROTECTED;
emh203	0:76427232f435	2049	return FR_OK; /* The file system object is valid */
emh203	0:76427232f435	2050	}
emh203	0:76427232f435	2051	}
emh203	0:76427232f435	2052
emh203	0:76427232f435	2053	/* The file system object is not valid. */
emh203	0:76427232f435	2054	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
emh203	0:76427232f435	2055
emh203	0:76427232f435	2056	fs->fs_type = 0; /* Clear the file system object */
emh203	0:76427232f435	2057	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
emh203	0:76427232f435	2058	stat = disk_initialize(fs->drv); /* Initialize low level disk I/O layer */
emh203	0:76427232f435	2059	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
emh203	0:76427232f435	2060	return FR_NOT_READY; /* Failed to initialize due to no media or hard error */
emh203	0:76427232f435	2061	if (!_FS_READONLY && chk_wp && (stat & STA_PROTECT)) /* Check disk write protection if needed */
emh203	0:76427232f435	2062	return FR_WRITE_PROTECTED;
emh203	0:76427232f435	2063	#if _MAX_SS != 512 /* Get disk sector size (variable sector size cfg only) */
emh203	0:76427232f435	2064	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
emh203	0:76427232f435	2065	return FR_DISK_ERR;
emh203	0:76427232f435	2066	#endif
emh203	0:76427232f435	2067	/* Search FAT partition on the drive. Supports only generic partitionings, FDISK and SFD. */
emh203	0:76427232f435	2068	fmt = check_fs(fs, bsect = 0); /* Load sector 0 and check if it is an FAT-VBR (in SFD) */
emh203	0:76427232f435	2069	if (LD2PT(vol) && !fmt) fmt = 1; /* Force non-SFD if the volume is forced partition */
emh203	0:76427232f435	2070	if (fmt == 1) { /* Not an FAT-VBR, the physical drive can be partitioned */
emh203	0:76427232f435	2071	/* Check the partition listed in the partition table */
emh203	0:76427232f435	2072	pi = LD2PT(vol);
emh203	0:76427232f435	2073	if (pi) pi--;
emh203	0:76427232f435	2074	tbl = &fs->win[MBR_Table + pi * SZ_PTE];/* Partition table */
emh203	0:76427232f435	2075	if (tbl[4]) { /* Is the partition existing? */
emh203	0:76427232f435	2076	bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
emh203	0:76427232f435	2077	fmt = check_fs(fs, bsect); /* Check the partition */
emh203	0:76427232f435	2078	}
emh203	0:76427232f435	2079	}
emh203	0:76427232f435	2080	if (fmt == 3) return FR_DISK_ERR;
emh203	0:76427232f435	2081	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
emh203	0:76427232f435	2082
emh203	0:76427232f435	2083	/* An FAT volume is found. Following code initializes the file system object */
emh203	0:76427232f435	2084
emh203	0:76427232f435	2085	if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
emh203	0:76427232f435	2086	return FR_NO_FILESYSTEM;
emh203	0:76427232f435	2087
emh203	0:76427232f435	2088	fasize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */
emh203	0:76427232f435	2089	if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32);
emh203	0:76427232f435	2090	fs->fsize = fasize;
emh203	0:76427232f435	2091
emh203	0:76427232f435	2092	fs->n_fats = b = fs->win[BPB_NumFATs]; /* Number of FAT copies */
emh203	0:76427232f435	2093	if (b != 1 && b != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
emh203	0:76427232f435	2094	fasize = b; / Number of sectors for FAT area */
emh203	0:76427232f435	2095
emh203	0:76427232f435	2096	fs->csize = b = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
emh203	0:76427232f435	2097	if (!b \|\| (b & (b - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
emh203	0:76427232f435	2098
emh203	0:76427232f435	2099	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Number of root directory entries */
emh203	0:76427232f435	2100	if (fs->n_rootdir % (SS(fs) / SZ_DIR)) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be sector aligned) */
emh203	0:76427232f435	2101
emh203	0:76427232f435	2102	tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */
emh203	0:76427232f435	2103	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
emh203	0:76427232f435	2104
emh203	0:76427232f435	2105	nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt); /* Number of reserved sectors */
emh203	0:76427232f435	2106	if (!nrsv) return FR_NO_FILESYSTEM; /* (BPB_RsvdSecCnt must not be 0) */
emh203	0:76427232f435	2107
emh203	0:76427232f435	2108	/* Determine the FAT sub type */
emh203	0:76427232f435	2109	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR); /* RSV+FAT+DIR */
emh203	0:76427232f435	2110	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
emh203	0:76427232f435	2111	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
emh203	0:76427232f435	2112	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
emh203	0:76427232f435	2113	fmt = FS_FAT12;
emh203	0:76427232f435	2114	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
emh203	0:76427232f435	2115	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
emh203	0:76427232f435	2116
emh203	0:76427232f435	2117	/* Boundaries and Limits */
emh203	0:76427232f435	2118	fs->n_fatent = nclst + 2; /* Number of FAT entries */
emh203	0:76427232f435	2119	fs->database = bsect + sysect; /* Data start sector */
emh203	0:76427232f435	2120	fs->fatbase = bsect + nrsv; /* FAT start sector */
emh203	0:76427232f435	2121	if (fmt == FS_FAT32) {
emh203	0:76427232f435	2122	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
emh203	0:76427232f435	2123	fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
emh203	0:76427232f435	2124	szbfat = fs->n_fatent * 4; /* (Required FAT size) */
emh203	0:76427232f435	2125	} else {
emh203	0:76427232f435	2126	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
emh203	0:76427232f435	2127	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
emh203	0:76427232f435	2128	szbfat = (fmt == FS_FAT16) ? /* (Required FAT size) */
emh203	0:76427232f435	2129	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
emh203	0:76427232f435	2130	}
emh203	0:76427232f435	2131	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than required) */
emh203	0:76427232f435	2132	return FR_NO_FILESYSTEM;
emh203	0:76427232f435	2133
emh203	0:76427232f435	2134	#if !_FS_READONLY
emh203	0:76427232f435	2135	/* Initialize cluster allocation information */
emh203	0:76427232f435	2136	fs->free_clust = 0xFFFFFFFF;
emh203	0:76427232f435	2137	fs->last_clust = 0;
emh203	0:76427232f435	2138
emh203	0:76427232f435	2139	/* Get fsinfo if available */
emh203	0:76427232f435	2140	if (fmt == FS_FAT32) {
emh203	0:76427232f435	2141	fs->fsi_flag = 0;
emh203	0:76427232f435	2142	fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
emh203	0:76427232f435	2143	if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK &&
emh203	0:76427232f435	2144	LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
emh203	0:76427232f435	2145	LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
emh203	0:76427232f435	2146	LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
emh203	0:76427232f435	2147	fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
emh203	0:76427232f435	2148	fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
emh203	0:76427232f435	2149	}
emh203	0:76427232f435	2150	}
emh203	0:76427232f435	2151	#endif
emh203	0:76427232f435	2152	fs->fs_type = fmt; /* FAT sub-type */
emh203	0:76427232f435	2153	fs->id = ++Fsid; /* File system mount ID */
emh203	0:76427232f435	2154	fs->winsect = 0; /* Invalidate sector cache */
emh203	0:76427232f435	2155	fs->wflag = 0;
emh203	0:76427232f435	2156	#if _FS_RPATH
emh203	0:76427232f435	2157	fs->cdir = 0; /* Current directory (root dir) */
emh203	0:76427232f435	2158	#endif
emh203	0:76427232f435	2159	#if _FS_SHARE /* Clear file lock semaphores */
emh203	0:76427232f435	2160	clear_lock(fs);
emh203	0:76427232f435	2161	#endif
emh203	0:76427232f435	2162
emh203	0:76427232f435	2163	return FR_OK;
emh203	0:76427232f435	2164	}
emh203	0:76427232f435	2165
emh203	0:76427232f435	2166
emh203	0:76427232f435	2167
emh203	0:76427232f435	2168
emh203	0:76427232f435	2169	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2170	/* Check if the file/dir object is valid or not */
emh203	0:76427232f435	2171	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2172
emh203	0:76427232f435	2173	static
emh203	0:76427232f435	2174	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
emh203	0:76427232f435	2175	FATFS fs, / Pointer to the file system object */
emh203	0:76427232f435	2176	WORD id /* Member id of the target object to be checked */
emh203	0:76427232f435	2177	)
emh203	0:76427232f435	2178	{
emh203	0:76427232f435	2179	if (!fs \|\| !fs->fs_type \|\| fs->id != id)
emh203	0:76427232f435	2180	return FR_INVALID_OBJECT;
emh203	0:76427232f435	2181
emh203	0:76427232f435	2182	ENTER_FF(fs); /* Lock file system */
emh203	0:76427232f435	2183
emh203	0:76427232f435	2184	if (disk_status(fs->drv) & STA_NOINIT)
emh203	0:76427232f435	2185	return FR_NOT_READY;
emh203	0:76427232f435	2186
emh203	0:76427232f435	2187	return FR_OK;
emh203	0:76427232f435	2188	}
emh203	0:76427232f435	2189
emh203	0:76427232f435	2190
emh203	0:76427232f435	2191
emh203	0:76427232f435	2192
emh203	0:76427232f435	2193	/*--------------------------------------------------------------------------
emh203	0:76427232f435	2194
emh203	0:76427232f435	2195	Public Functions
emh203	0:76427232f435	2196
emh203	0:76427232f435	2197	--------------------------------------------------------------------------*/
emh203	0:76427232f435	2198
emh203	0:76427232f435	2199
emh203	0:76427232f435	2200
emh203	0:76427232f435	2201	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2202	/* Mount/Unmount a Logical Drive */
emh203	0:76427232f435	2203	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2204
emh203	0:76427232f435	2205	FRESULT f_mount (
emh203	0:76427232f435	2206	BYTE vol, /* Logical drive number to be mounted/unmounted */
emh203	0:76427232f435	2207	FATFS fs / Pointer to new file system object (NULL for unmount)*/
emh203	0:76427232f435	2208	)
emh203	0:76427232f435	2209	{
emh203	0:76427232f435	2210	FATFS *rfs;
emh203	0:76427232f435	2211
emh203	0:76427232f435	2212
emh203	0:76427232f435	2213	if (vol >= _VOLUMES) /* Check if the drive number is valid */
emh203	0:76427232f435	2214	return FR_INVALID_DRIVE;
emh203	0:76427232f435	2215	rfs = FatFs[vol]; /* Get current fs object */
emh203	0:76427232f435	2216
emh203	0:76427232f435	2217	if (rfs) {
emh203	0:76427232f435	2218	#if _FS_SHARE
emh203	0:76427232f435	2219	clear_lock(rfs);
emh203	0:76427232f435	2220	#endif
emh203	0:76427232f435	2221	#if _FS_REENTRANT /* Discard sync object of the current volume */
emh203	0:76427232f435	2222	if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
emh203	0:76427232f435	2223	#endif
emh203	0:76427232f435	2224	rfs->fs_type = 0; /* Clear old fs object */
emh203	0:76427232f435	2225	}
emh203	0:76427232f435	2226
emh203	0:76427232f435	2227	if (fs) {
emh203	0:76427232f435	2228	fs->fs_type = 0; /* Clear new fs object */
emh203	0:76427232f435	2229	#if _FS_REENTRANT /* Create sync object for the new volume */
emh203	0:76427232f435	2230	if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
emh203	0:76427232f435	2231	#endif
emh203	0:76427232f435	2232	}
emh203	0:76427232f435	2233	FatFs[vol] = fs; /* Register new fs object */
emh203	0:76427232f435	2234
emh203	0:76427232f435	2235	return FR_OK;
emh203	0:76427232f435	2236	}
emh203	0:76427232f435	2237
emh203	0:76427232f435	2238
emh203	0:76427232f435	2239
emh203	0:76427232f435	2240
emh203	0:76427232f435	2241	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2242	/* Open or Create a File */
emh203	0:76427232f435	2243	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2244
emh203	0:76427232f435	2245	FRESULT f_open (
emh203	0:76427232f435	2246	FIL fp, / Pointer to the blank file object */
emh203	0:76427232f435	2247	const TCHAR path, / Pointer to the file name */
emh203	0:76427232f435	2248	BYTE mode /* Access mode and file open mode flags */
emh203	0:76427232f435	2249	)
emh203	0:76427232f435	2250	{
emh203	0:76427232f435	2251	FRESULT res;
emh203	0:76427232f435	2252	eDIR dj;
emh203	0:76427232f435	2253	BYTE *dir;
emh203	0:76427232f435	2254	DEF_NAMEBUF;
emh203	0:76427232f435	2255
emh203	0:76427232f435	2256
emh203	0:76427232f435	2257	fp->fs = 0; /* Clear file object */
emh203	0:76427232f435	2258
emh203	0:76427232f435	2259	#if !_FS_READONLY
emh203	0:76427232f435	2260	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
emh203	0:76427232f435	2261	res = chk_mounted(&path, &dj.fs, (BYTE)(mode & ~FA_READ));
emh203	0:76427232f435	2262	#else
emh203	0:76427232f435	2263	mode &= FA_READ;
emh203	0:76427232f435	2264	res = chk_mounted(&path, &dj.fs, 0);
emh203	0:76427232f435	2265	#endif
emh203	0:76427232f435	2266	INIT_BUF(dj);
emh203	0:76427232f435	2267	if (res == FR_OK)
emh203	0:76427232f435	2268	res = follow_path(&dj, path); /* Follow the file path */
emh203	0:76427232f435	2269	dir = dj.dir;
emh203	0:76427232f435	2270
emh203	0:76427232f435	2271	#if !_FS_READONLY /* R/W configuration */
emh203	0:76427232f435	2272	if (res == FR_OK) {
emh203	0:76427232f435	2273	if (!dir) /* Current dir itself */
emh203	0:76427232f435	2274	res = FR_INVALID_NAME;
emh203	0:76427232f435	2275	#if _FS_SHARE
emh203	0:76427232f435	2276	else
emh203	0:76427232f435	2277	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
emh203	0:76427232f435	2278	#endif
emh203	0:76427232f435	2279	}
emh203	0:76427232f435	2280	/* Create or Open a file */
emh203	0:76427232f435	2281	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
emh203	0:76427232f435	2282	DWORD dw, cl;
emh203	0:76427232f435	2283
emh203	0:76427232f435	2284	if (res != FR_OK) { /* No file, create new */
emh203	0:76427232f435	2285	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
emh203	0:76427232f435	2286	#if _FS_SHARE
emh203	0:76427232f435	2287	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
emh203	0:76427232f435	2288	#else
emh203	0:76427232f435	2289	res = dir_register(&dj);
emh203	0:76427232f435	2290	#endif
emh203	0:76427232f435	2291	mode \|= FA_CREATE_ALWAYS; /* File is created */
emh203	0:76427232f435	2292	dir = dj.dir; /* New entry */
emh203	0:76427232f435	2293	}
emh203	0:76427232f435	2294	else { /* Any object is already existing */
emh203	0:76427232f435	2295	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */
emh203	0:76427232f435	2296	res = FR_DENIED;
emh203	0:76427232f435	2297	} else {
emh203	0:76427232f435	2298	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
emh203	0:76427232f435	2299	res = FR_EXIST;
emh203	0:76427232f435	2300	}
emh203	0:76427232f435	2301	}
emh203	0:76427232f435	2302	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
emh203	0:76427232f435	2303	dw = get_fattime(); /* Created time */
emh203	0:76427232f435	2304	ST_DWORD(dir+DIR_CrtTime, dw);
emh203	0:76427232f435	2305	dir[DIR_Attr] = 0; /* Reset attribute */
emh203	0:76427232f435	2306	ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
emh203	0:76427232f435	2307	cl = LD_CLUST(dir); /* Get start cluster */
emh203	0:76427232f435	2308	ST_CLUST(dir, 0); /* cluster = 0 */
emh203	0:76427232f435	2309	dj.fs->wflag = 1;
emh203	0:76427232f435	2310	if (cl) { /* Remove the cluster chain if exist */
emh203	0:76427232f435	2311	dw = dj.fs->winsect;
emh203	0:76427232f435	2312	res = remove_chain(dj.fs, cl);
emh203	0:76427232f435	2313	if (res == FR_OK) {
emh203	0:76427232f435	2314	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
emh203	0:76427232f435	2315	res = move_window(dj.fs, dw);
emh203	0:76427232f435	2316	}
emh203	0:76427232f435	2317	}
emh203	0:76427232f435	2318	}
emh203	0:76427232f435	2319	}
emh203	0:76427232f435	2320	else { /* Open an existing file */
emh203	0:76427232f435	2321	if (res == FR_OK) { /* Follow succeeded */
emh203	0:76427232f435	2322	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
emh203	0:76427232f435	2323	res = FR_NO_FILE;
emh203	0:76427232f435	2324	} else {
emh203	0:76427232f435	2325	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
emh203	0:76427232f435	2326	res = FR_DENIED;
emh203	0:76427232f435	2327	}
emh203	0:76427232f435	2328	}
emh203	0:76427232f435	2329	}
emh203	0:76427232f435	2330	if (res == FR_OK) {
emh203	0:76427232f435	2331	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
emh203	0:76427232f435	2332	mode \|= FA__WRITTEN;
emh203	0:76427232f435	2333	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
emh203	0:76427232f435	2334	fp->dir_ptr = dir;
emh203	0:76427232f435	2335	#if _FS_SHARE
emh203	0:76427232f435	2336	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
emh203	0:76427232f435	2337	if (!fp->lockid) res = FR_INT_ERR;
emh203	0:76427232f435	2338	#endif
emh203	0:76427232f435	2339	}
emh203	0:76427232f435	2340
emh203	0:76427232f435	2341	#else /* R/O configuration */
emh203	0:76427232f435	2342	if (res == FR_OK) { /* Follow succeeded */
emh203	0:76427232f435	2343	if (!dir) { /* Current dir itself */
emh203	0:76427232f435	2344	res = FR_INVALID_NAME;
emh203	0:76427232f435	2345	} else {
emh203	0:76427232f435	2346	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
emh203	0:76427232f435	2347	res = FR_NO_FILE;
emh203	0:76427232f435	2348	}
emh203	0:76427232f435	2349	}
emh203	0:76427232f435	2350	#endif
emh203	0:76427232f435	2351	FREE_BUF();
emh203	0:76427232f435	2352
emh203	0:76427232f435	2353	if (res == FR_OK) {
emh203	0:76427232f435	2354	fp->flag = mode; /* File access mode */
emh203	0:76427232f435	2355	fp->sclust = LD_CLUST(dir); /* File start cluster */
emh203	0:76427232f435	2356	fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
emh203	0:76427232f435	2357	fp->fptr = 0; /* File pointer */
emh203	0:76427232f435	2358	fp->dsect = 0;
emh203	0:76427232f435	2359	#if _USE_FASTSEEK
emh203	0:76427232f435	2360	fp->cltbl = 0; /* Normal seek mode */
emh203	0:76427232f435	2361	#endif
emh203	0:76427232f435	2362	fp->fs = dj.fs; fp->id = dj.fs->id; /* Validate file object */
emh203	0:76427232f435	2363	}
emh203	0:76427232f435	2364
emh203	0:76427232f435	2365	LEAVE_FF(dj.fs, res);
emh203	0:76427232f435	2366	}
emh203	0:76427232f435	2367
emh203	0:76427232f435	2368
emh203	0:76427232f435	2369
emh203	0:76427232f435	2370
emh203	0:76427232f435	2371	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2372	/* Read File */
emh203	0:76427232f435	2373	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2374
emh203	0:76427232f435	2375	FRESULT f_read (
emh203	0:76427232f435	2376	FIL fp, / Pointer to the file object */
emh203	0:76427232f435	2377	void buff, / Pointer to data buffer */
emh203	0:76427232f435	2378	UINT btr, /* Number of bytes to read */
emh203	0:76427232f435	2379	UINT br / Pointer to number of bytes read */
emh203	0:76427232f435	2380	)
emh203	0:76427232f435	2381	{
emh203	0:76427232f435	2382	FRESULT res;
emh203	0:76427232f435	2383	DWORD clst, sect, remain;
emh203	0:76427232f435	2384	UINT rcnt, cc;
emh203	0:76427232f435	2385	BYTE csect, rbuff = (BYTE )buff;
emh203	0:76427232f435	2386
emh203	0:76427232f435	2387
emh203	0:76427232f435	2388	br = 0; / Initialize byte counter */
emh203	0:76427232f435	2389
emh203	0:76427232f435	2390	res = validate(fp->fs, fp->id); /* Check validity */
emh203	0:76427232f435	2391	if (res != FR_OK) LEAVE_FF(fp->fs, res);
emh203	0:76427232f435	2392	if (fp->flag & FA__ERROR) /* Aborted file? */
emh203	0:76427232f435	2393	LEAVE_FF(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	2394	if (!(fp->flag & FA_READ)) /* Check access mode */
emh203	0:76427232f435	2395	LEAVE_FF(fp->fs, FR_DENIED);
emh203	0:76427232f435	2396	remain = fp->fsize - fp->fptr;
emh203	0:76427232f435	2397	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
emh203	0:76427232f435	2398
emh203	0:76427232f435	2399	for ( ; btr; /* Repeat until all data read */
emh203	0:76427232f435	2400	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
emh203	0:76427232f435	2401	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
emh203	0:76427232f435	2402	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
emh203	0:76427232f435	2403	if (!csect) { /* On the cluster boundary? */
emh203	0:76427232f435	2404	if (fp->fptr == 0) { /* On the top of the file? */
emh203	0:76427232f435	2405	clst = fp->sclust; /* Follow from the origin */
emh203	0:76427232f435	2406	} else { /* Middle or end of the file */
emh203	0:76427232f435	2407	#if _USE_FASTSEEK
emh203	0:76427232f435	2408	if (fp->cltbl)
emh203	0:76427232f435	2409	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
emh203	0:76427232f435	2410	else
emh203	0:76427232f435	2411	#endif
emh203	0:76427232f435	2412	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
emh203	0:76427232f435	2413	}
emh203	0:76427232f435	2414	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	2415	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2416	fp->clust = clst; /* Update current cluster */
emh203	0:76427232f435	2417	}
emh203	0:76427232f435	2418	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
emh203	0:76427232f435	2419	if (!sect) ABORT(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	2420	sect += csect;
emh203	0:76427232f435	2421	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
emh203	0:76427232f435	2422	if (cc) { /* Read maximum contiguous sectors directly */
emh203	0:76427232f435	2423	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
emh203	0:76427232f435	2424	cc = fp->fs->csize - csect;
emh203	0:76427232f435	2425	if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK)
emh203	0:76427232f435	2426	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2427	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
emh203	0:76427232f435	2428	#if _FS_TINY
emh203	0:76427232f435	2429	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
emh203	0:76427232f435	2430	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
emh203	0:76427232f435	2431	#else
emh203	0:76427232f435	2432	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
emh203	0:76427232f435	2433	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
emh203	0:76427232f435	2434	#endif
emh203	0:76427232f435	2435	#endif
emh203	0:76427232f435	2436	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
emh203	0:76427232f435	2437	continue;
emh203	0:76427232f435	2438	}
emh203	0:76427232f435	2439	#if !_FS_TINY
emh203	0:76427232f435	2440	if (fp->dsect != sect) { /* Load data sector if not in cache */
emh203	0:76427232f435	2441	#if !_FS_READONLY
emh203	0:76427232f435	2442	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
emh203	0:76427232f435	2443	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
emh203	0:76427232f435	2444	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2445	fp->flag &= ~FA__DIRTY;
emh203	0:76427232f435	2446	}
emh203	0:76427232f435	2447	#endif
emh203	0:76427232f435	2448	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
emh203	0:76427232f435	2449	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2450	}
emh203	0:76427232f435	2451	#endif
emh203	0:76427232f435	2452	fp->dsect = sect;
emh203	0:76427232f435	2453	}
emh203	0:76427232f435	2454	rcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
emh203	0:76427232f435	2455	if (rcnt > btr) rcnt = btr;
emh203	0:76427232f435	2456	#if _FS_TINY
emh203	0:76427232f435	2457	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
emh203	0:76427232f435	2458	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2459	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
emh203	0:76427232f435	2460	#else
emh203	0:76427232f435	2461	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
emh203	0:76427232f435	2462	#endif
emh203	0:76427232f435	2463	}
emh203	0:76427232f435	2464
emh203	0:76427232f435	2465	LEAVE_FF(fp->fs, FR_OK);
emh203	0:76427232f435	2466	}
emh203	0:76427232f435	2467
emh203	0:76427232f435	2468
emh203	0:76427232f435	2469
emh203	0:76427232f435	2470
emh203	0:76427232f435	2471	#if !_FS_READONLY
emh203	0:76427232f435	2472	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2473	/* Write File */
emh203	0:76427232f435	2474	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2475
emh203	0:76427232f435	2476	FRESULT f_write (
emh203	0:76427232f435	2477	FIL fp, / Pointer to the file object */
emh203	0:76427232f435	2478	const void buff, / Pointer to the data to be written */
emh203	0:76427232f435	2479	UINT btw, /* Number of bytes to write */
emh203	0:76427232f435	2480	UINT bw / Pointer to number of bytes written */
emh203	0:76427232f435	2481	)
emh203	0:76427232f435	2482	{
emh203	0:76427232f435	2483	FRESULT res;
emh203	0:76427232f435	2484	DWORD clst, sect;
emh203	0:76427232f435	2485	UINT wcnt, cc;
emh203	0:76427232f435	2486	const BYTE wbuff = (BYTE )buff;
emh203	0:76427232f435	2487	BYTE csect;
emh203	0:76427232f435	2488
emh203	0:76427232f435	2489
emh203	0:76427232f435	2490	bw = 0; / Initialize byte counter */
emh203	0:76427232f435	2491
emh203	0:76427232f435	2492	res = validate(fp->fs, fp->id); /* Check validity */
emh203	0:76427232f435	2493	if (res != FR_OK) LEAVE_FF(fp->fs, res);
emh203	0:76427232f435	2494	if (fp->flag & FA__ERROR) /* Aborted file? */
emh203	0:76427232f435	2495	LEAVE_FF(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	2496	if (!(fp->flag & FA_WRITE)) /* Check access mode */
emh203	0:76427232f435	2497	LEAVE_FF(fp->fs, FR_DENIED);
emh203	0:76427232f435	2498	if ((DWORD)(fp->fsize + btw) < fp->fsize) btw = 0; /* File size cannot reach 4GB */
emh203	0:76427232f435	2499
emh203	0:76427232f435	2500	for ( ; btw; /* Repeat until all data written */
emh203	0:76427232f435	2501	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
emh203	0:76427232f435	2502	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
emh203	0:76427232f435	2503	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
emh203	0:76427232f435	2504	if (!csect) { /* On the cluster boundary? */
emh203	0:76427232f435	2505	if (fp->fptr == 0) { /* On the top of the file? */
emh203	0:76427232f435	2506	clst = fp->sclust; /* Follow from the origin */
emh203	0:76427232f435	2507	if (clst == 0) /* When no cluster is allocated, */
emh203	0:76427232f435	2508	fp->sclust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
emh203	0:76427232f435	2509	} else { /* Middle or end of the file */
emh203	0:76427232f435	2510	#if _USE_FASTSEEK
emh203	0:76427232f435	2511	if (fp->cltbl)
emh203	0:76427232f435	2512	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
emh203	0:76427232f435	2513	else
emh203	0:76427232f435	2514	#endif
emh203	0:76427232f435	2515	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
emh203	0:76427232f435	2516	}
emh203	0:76427232f435	2517	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
emh203	0:76427232f435	2518	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	2519	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2520	fp->clust = clst; /* Update current cluster */
emh203	0:76427232f435	2521	}
emh203	0:76427232f435	2522	#if _FS_TINY
emh203	0:76427232f435	2523	if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write-back sector cache */
emh203	0:76427232f435	2524	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2525	#else
emh203	0:76427232f435	2526	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
emh203	0:76427232f435	2527	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
emh203	0:76427232f435	2528	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2529	fp->flag &= ~FA__DIRTY;
emh203	0:76427232f435	2530	}
emh203	0:76427232f435	2531	#endif
emh203	0:76427232f435	2532	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
emh203	0:76427232f435	2533	if (!sect) ABORT(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	2534	sect += csect;
emh203	0:76427232f435	2535	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
emh203	0:76427232f435	2536	if (cc) { /* Write maximum contiguous sectors directly */
emh203	0:76427232f435	2537	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
emh203	0:76427232f435	2538	cc = fp->fs->csize - csect;
emh203	0:76427232f435	2539	if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK)
emh203	0:76427232f435	2540	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2541	#if _FS_TINY
emh203	0:76427232f435	2542	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
emh203	0:76427232f435	2543	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
emh203	0:76427232f435	2544	fp->fs->wflag = 0;
emh203	0:76427232f435	2545	}
emh203	0:76427232f435	2546	#else
emh203	0:76427232f435	2547	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
emh203	0:76427232f435	2548	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
emh203	0:76427232f435	2549	fp->flag &= ~FA__DIRTY;
emh203	0:76427232f435	2550	}
emh203	0:76427232f435	2551	#endif
emh203	0:76427232f435	2552	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
emh203	0:76427232f435	2553	continue;
emh203	0:76427232f435	2554	}
emh203	0:76427232f435	2555	#if _FS_TINY
emh203	0:76427232f435	2556	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
emh203	0:76427232f435	2557	if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2558	fp->fs->winsect = sect;
emh203	0:76427232f435	2559	}
emh203	0:76427232f435	2560	#else
emh203	0:76427232f435	2561	if (fp->dsect != sect) { /* Fill sector cache with file data */
emh203	0:76427232f435	2562	if (fp->fptr < fp->fsize &&
emh203	0:76427232f435	2563	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
emh203	0:76427232f435	2564	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2565	}
emh203	0:76427232f435	2566	#endif
emh203	0:76427232f435	2567	fp->dsect = sect;
emh203	0:76427232f435	2568	}
emh203	0:76427232f435	2569	wcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
emh203	0:76427232f435	2570	if (wcnt > btw) wcnt = btw;
emh203	0:76427232f435	2571	#if _FS_TINY
emh203	0:76427232f435	2572	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
emh203	0:76427232f435	2573	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2574	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
emh203	0:76427232f435	2575	fp->fs->wflag = 1;
emh203	0:76427232f435	2576	#else
emh203	0:76427232f435	2577	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
emh203	0:76427232f435	2578	fp->flag \|= FA__DIRTY;
emh203	0:76427232f435	2579	#endif
emh203	0:76427232f435	2580	}
emh203	0:76427232f435	2581
emh203	0:76427232f435	2582	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
emh203	0:76427232f435	2583	fp->flag \|= FA__WRITTEN; /* Set file change flag */
emh203	0:76427232f435	2584
emh203	0:76427232f435	2585	LEAVE_FF(fp->fs, FR_OK);
emh203	0:76427232f435	2586	}
emh203	0:76427232f435	2587
emh203	0:76427232f435	2588
emh203	0:76427232f435	2589
emh203	0:76427232f435	2590
emh203	0:76427232f435	2591	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2592	/* Synchronize the File Object */
emh203	0:76427232f435	2593	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2594
emh203	0:76427232f435	2595	FRESULT f_sync (
emh203	0:76427232f435	2596	FIL fp / Pointer to the file object */
emh203	0:76427232f435	2597	)
emh203	0:76427232f435	2598	{
emh203	0:76427232f435	2599	FRESULT res;
emh203	0:76427232f435	2600	DWORD tim;
emh203	0:76427232f435	2601	BYTE *dir;
emh203	0:76427232f435	2602
emh203	0:76427232f435	2603
emh203	0:76427232f435	2604	res = validate(fp->fs, fp->id); /* Check validity of the object */
emh203	0:76427232f435	2605	if (res == FR_OK) {
emh203	0:76427232f435	2606	if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
emh203	0:76427232f435	2607	#if !_FS_TINY /* Write-back dirty buffer */
emh203	0:76427232f435	2608	if (fp->flag & FA__DIRTY) {
emh203	0:76427232f435	2609	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
emh203	0:76427232f435	2610	LEAVE_FF(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2611	fp->flag &= ~FA__DIRTY;
emh203	0:76427232f435	2612	}
emh203	0:76427232f435	2613	#endif
emh203	0:76427232f435	2614	/* Update the directory entry */
emh203	0:76427232f435	2615	res = move_window(fp->fs, fp->dir_sect);
emh203	0:76427232f435	2616	if (res == FR_OK) {
emh203	0:76427232f435	2617	dir = fp->dir_ptr;
emh203	0:76427232f435	2618	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
emh203	0:76427232f435	2619	ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
emh203	0:76427232f435	2620	ST_CLUST(dir, fp->sclust); /* Update start cluster */
emh203	0:76427232f435	2621	tim = get_fattime(); /* Update updated time */
emh203	0:76427232f435	2622	ST_DWORD(dir+DIR_WrtTime, tim);
emh203	0:76427232f435	2623	fp->flag &= ~FA__WRITTEN;
emh203	0:76427232f435	2624	fp->fs->wflag = 1;
emh203	0:76427232f435	2625	res = sync(fp->fs);
emh203	0:76427232f435	2626	}
emh203	0:76427232f435	2627	}
emh203	0:76427232f435	2628	}
emh203	0:76427232f435	2629
emh203	0:76427232f435	2630	LEAVE_FF(fp->fs, res);
emh203	0:76427232f435	2631	}
emh203	0:76427232f435	2632
emh203	0:76427232f435	2633	#endif /* !_FS_READONLY */
emh203	0:76427232f435	2634
emh203	0:76427232f435	2635
emh203	0:76427232f435	2636
emh203	0:76427232f435	2637
emh203	0:76427232f435	2638	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2639	/* Close File */
emh203	0:76427232f435	2640	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2641
emh203	0:76427232f435	2642	FRESULT f_close (
emh203	0:76427232f435	2643	FIL fp / Pointer to the file object to be closed */
emh203	0:76427232f435	2644	)
emh203	0:76427232f435	2645	{
emh203	0:76427232f435	2646	FRESULT res;
emh203	0:76427232f435	2647
emh203	0:76427232f435	2648	#if _FS_READONLY
emh203	0:76427232f435	2649	FATFS *fs = fp->fs;
emh203	0:76427232f435	2650	res = validate(fs, fp->id);
emh203	0:76427232f435	2651	if (res == FR_OK) fp->fs = 0; /* Discard file object */
emh203	0:76427232f435	2652	LEAVE_FF(fs, res);
emh203	0:76427232f435	2653
emh203	0:76427232f435	2654	#else
emh203	0:76427232f435	2655	res = f_sync(fp); /* Flush cached data */
emh203	0:76427232f435	2656	#if _FS_SHARE
emh203	0:76427232f435	2657	if (res == FR_OK) { /* Decrement open counter */
emh203	0:76427232f435	2658	#if _FS_REENTRANT
emh203	0:76427232f435	2659	res = validate(fp->fs, fp->id);
emh203	0:76427232f435	2660	if (res == FR_OK) {
emh203	0:76427232f435	2661	res = dec_lock(fp->lockid);
emh203	0:76427232f435	2662	unlock_fs(fp->fs, FR_OK);
emh203	0:76427232f435	2663	}
emh203	0:76427232f435	2664	#else
emh203	0:76427232f435	2665	res = dec_lock(fp->lockid);
emh203	0:76427232f435	2666	#endif
emh203	0:76427232f435	2667	}
emh203	0:76427232f435	2668	#endif
emh203	0:76427232f435	2669	if (res == FR_OK) fp->fs = 0; /* Discard file object */
emh203	0:76427232f435	2670	return res;
emh203	0:76427232f435	2671	#endif
emh203	0:76427232f435	2672	}
emh203	0:76427232f435	2673
emh203	0:76427232f435	2674
emh203	0:76427232f435	2675
emh203	0:76427232f435	2676
emh203	0:76427232f435	2677	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2678	/* Current Drive/Directory Handlings */
emh203	0:76427232f435	2679	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2680
emh203	0:76427232f435	2681	#if _FS_RPATH >= 1
emh203	0:76427232f435	2682
emh203	0:76427232f435	2683	FRESULT f_chdrive (
emh203	0:76427232f435	2684	BYTE drv /* Drive number */
emh203	0:76427232f435	2685	)
emh203	0:76427232f435	2686	{
emh203	0:76427232f435	2687	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
emh203	0:76427232f435	2688
emh203	0:76427232f435	2689	CurrVol = drv;
emh203	0:76427232f435	2690
emh203	0:76427232f435	2691	return FR_OK;
emh203	0:76427232f435	2692	}
emh203	0:76427232f435	2693
emh203	0:76427232f435	2694
emh203	0:76427232f435	2695
emh203	0:76427232f435	2696	FRESULT f_chdir (
emh203	0:76427232f435	2697	const TCHAR path / Pointer to the directory path */
emh203	0:76427232f435	2698	)
emh203	0:76427232f435	2699	{
emh203	0:76427232f435	2700	FRESULT res;
emh203	0:76427232f435	2701	DIR dj;
emh203	0:76427232f435	2702	DEF_NAMEBUF;
emh203	0:76427232f435	2703
emh203	0:76427232f435	2704
emh203	0:76427232f435	2705	res = chk_mounted(&path, &dj.fs, 0);
emh203	0:76427232f435	2706	if (res == FR_OK) {
emh203	0:76427232f435	2707	INIT_BUF(dj);
emh203	0:76427232f435	2708	res = follow_path(&dj, path); /* Follow the path */
emh203	0:76427232f435	2709	FREE_BUF();
emh203	0:76427232f435	2710	if (res == FR_OK) { /* Follow completed */
emh203	0:76427232f435	2711	if (!dj.dir) {
emh203	0:76427232f435	2712	dj.fs->cdir = dj.sclust; /* Start directory itself */
emh203	0:76427232f435	2713	} else {
emh203	0:76427232f435	2714	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
emh203	0:76427232f435	2715	dj.fs->cdir = LD_CLUST(dj.dir);
emh203	0:76427232f435	2716	else
emh203	0:76427232f435	2717	res = FR_NO_PATH; /* Reached but a file */
emh203	0:76427232f435	2718	}
emh203	0:76427232f435	2719	}
emh203	0:76427232f435	2720	if (res == FR_NO_FILE) res = FR_NO_PATH;
emh203	0:76427232f435	2721	}
emh203	0:76427232f435	2722
emh203	0:76427232f435	2723	LEAVE_FF(dj.fs, res);
emh203	0:76427232f435	2724	}
emh203	0:76427232f435	2725
emh203	0:76427232f435	2726
emh203	0:76427232f435	2727	#if _FS_RPATH >= 2
emh203	0:76427232f435	2728	FRESULT f_getcwd (
emh203	0:76427232f435	2729	TCHAR path, / Pointer to the directory path */
emh203	0:76427232f435	2730	UINT sz_path /* Size of path */
emh203	0:76427232f435	2731	)
emh203	0:76427232f435	2732	{
emh203	0:76427232f435	2733	FRESULT res;
emh203	0:76427232f435	2734	DIR dj;
emh203	0:76427232f435	2735	UINT i, n;
emh203	0:76427232f435	2736	DWORD ccl;
emh203	0:76427232f435	2737	TCHAR *tp;
emh203	0:76427232f435	2738	FILINFO fno;
emh203	0:76427232f435	2739	DEF_NAMEBUF;
emh203	0:76427232f435	2740
emh203	0:76427232f435	2741
emh203	0:76427232f435	2742	*path = 0;
emh203	0:76427232f435	2743	res = chk_mounted((const TCHAR*)&path, &dj.fs, 0); / Get current volume */
emh203	0:76427232f435	2744	if (res == FR_OK) {
emh203	0:76427232f435	2745	INIT_BUF(dj);
emh203	0:76427232f435	2746	i = sz_path; /* Bottom of buffer (dir stack base) */
emh203	0:76427232f435	2747	dj.sclust = dj.fs->cdir; /* Start to follow upper dir from current dir */
emh203	0:76427232f435	2748	while ((ccl = dj.sclust) != 0) { /* Repeat while current dir is a sub-dir */
emh203	0:76427232f435	2749	res = dir_sdi(&dj, 1); /* Get parent dir */
emh203	0:76427232f435	2750	if (res != FR_OK) break;
emh203	0:76427232f435	2751	res = dir_read(&dj);
emh203	0:76427232f435	2752	if (res != FR_OK) break;
emh203	0:76427232f435	2753	dj.sclust = LD_CLUST(dj.dir); /* Goto parent dir */
emh203	0:76427232f435	2754	res = dir_sdi(&dj, 0);
emh203	0:76427232f435	2755	if (res != FR_OK) break;
emh203	0:76427232f435	2756	do { /* Find the entry links to the child dir */
emh203	0:76427232f435	2757	res = dir_read(&dj);
emh203	0:76427232f435	2758	if (res != FR_OK) break;
emh203	0:76427232f435	2759	if (ccl == LD_CLUST(dj.dir)) break; /* Found the entry */
emh203	0:76427232f435	2760	res = dir_next(&dj, 0);
emh203	0:76427232f435	2761	} while (res == FR_OK);
emh203	0:76427232f435	2762	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
emh203	0:76427232f435	2763	if (res != FR_OK) break;
emh203	0:76427232f435	2764	#if _USE_LFN
emh203	0:76427232f435	2765	fno.lfname = path;
emh203	0:76427232f435	2766	fno.lfsize = i;
emh203	0:76427232f435	2767	#endif
emh203	0:76427232f435	2768	get_fileinfo(&dj, &fno); /* Get the dir name and push it to the buffer */
emh203	0:76427232f435	2769	tp = fno.fname;
emh203	0:76427232f435	2770	if (_USE_LFN && *path) tp = path;
emh203	0:76427232f435	2771	for (n = 0; tp[n]; n++) ;
emh203	0:76427232f435	2772	if (i < n + 3) {
emh203	0:76427232f435	2773	res = FR_NOT_ENOUGH_CORE; break;
emh203	0:76427232f435	2774	}
emh203	0:76427232f435	2775	while (n) path[--i] = tp[--n];
emh203	0:76427232f435	2776	path[--i] = '/';
emh203	0:76427232f435	2777	}
emh203	0:76427232f435	2778	tp = path;
emh203	0:76427232f435	2779	if (res == FR_OK) {
emh203	0:76427232f435	2780	tp++ = '0' + CurrVol; / Put drive number */
emh203	0:76427232f435	2781	*tp++ = ':';
emh203	0:76427232f435	2782	if (i == sz_path) { /* Root-dir */
emh203	0:76427232f435	2783	*tp++ = '/';
emh203	0:76427232f435	2784	} else { /* Sub-dir */
emh203	0:76427232f435	2785	do /* Add stacked path str */
emh203	0:76427232f435	2786	*tp++ = path[i++];
emh203	0:76427232f435	2787	while (i < sz_path);
emh203	0:76427232f435	2788	}
emh203	0:76427232f435	2789	}
emh203	0:76427232f435	2790	*tp = 0;
emh203	0:76427232f435	2791	FREE_BUF();
emh203	0:76427232f435	2792	}
emh203	0:76427232f435	2793
emh203	0:76427232f435	2794	LEAVE_FF(dj.fs, res);
emh203	0:76427232f435	2795	}
emh203	0:76427232f435	2796	#endif /* _FS_RPATH >= 2 */
emh203	0:76427232f435	2797	#endif /* _FS_RPATH >= 1 */
emh203	0:76427232f435	2798
emh203	0:76427232f435	2799
emh203	0:76427232f435	2800
emh203	0:76427232f435	2801	#if _FS_MINIMIZE <= 2
emh203	0:76427232f435	2802	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2803	/* Seek File R/W Pointer */
emh203	0:76427232f435	2804	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2805
emh203	0:76427232f435	2806	FRESULT f_lseek (
emh203	0:76427232f435	2807	FIL fp, / Pointer to the file object */
emh203	0:76427232f435	2808	DWORD ofs /* File pointer from top of file */
emh203	0:76427232f435	2809	)
emh203	0:76427232f435	2810	{
emh203	0:76427232f435	2811	FRESULT res;
emh203	0:76427232f435	2812
emh203	0:76427232f435	2813
emh203	0:76427232f435	2814	res = validate(fp->fs, fp->id); /* Check validity of the object */
emh203	0:76427232f435	2815	if (res != FR_OK) LEAVE_FF(fp->fs, res);
emh203	0:76427232f435	2816	if (fp->flag & FA__ERROR) /* Check abort flag */
emh203	0:76427232f435	2817	LEAVE_FF(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	2818
emh203	0:76427232f435	2819	#if _USE_FASTSEEK
emh203	0:76427232f435	2820	if (fp->cltbl) { /* Fast seek */
emh203	0:76427232f435	2821	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
emh203	0:76427232f435	2822
emh203	0:76427232f435	2823	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
emh203	0:76427232f435	2824	tbl = fp->cltbl;
emh203	0:76427232f435	2825	tlen = tbl++; ulen = 2; / Given table size and required table size */
emh203	0:76427232f435	2826	cl = fp->sclust; /* Top of the chain */
emh203	0:76427232f435	2827	if (cl) {
emh203	0:76427232f435	2828	do {
emh203	0:76427232f435	2829	/* Get a fragment */
emh203	0:76427232f435	2830	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
emh203	0:76427232f435	2831	do {
emh203	0:76427232f435	2832	pcl = cl; ncl++;
emh203	0:76427232f435	2833	cl = get_fat(fp->fs, cl);
emh203	0:76427232f435	2834	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	2835	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2836	} while (cl == pcl + 1);
emh203	0:76427232f435	2837	if (ulen <= tlen) { /* Store the length and top of the fragment */
emh203	0:76427232f435	2838	tbl++ = ncl; tbl++ = tcl;
emh203	0:76427232f435	2839	}
emh203	0:76427232f435	2840	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
emh203	0:76427232f435	2841	}
emh203	0:76427232f435	2842	fp->cltbl = ulen; / Number of items used */
emh203	0:76427232f435	2843	if (ulen <= tlen)
emh203	0:76427232f435	2844	tbl = 0; / Terminate table */
emh203	0:76427232f435	2845	else
emh203	0:76427232f435	2846	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
emh203	0:76427232f435	2847
emh203	0:76427232f435	2848	} else { /* Fast seek */
emh203	0:76427232f435	2849	if (ofs > fp->fsize) /* Clip offset at the file size */
emh203	0:76427232f435	2850	ofs = fp->fsize;
emh203	0:76427232f435	2851	fp->fptr = ofs; /* Set file pointer */
emh203	0:76427232f435	2852	if (ofs) {
emh203	0:76427232f435	2853	fp->clust = clmt_clust(fp, ofs - 1);
emh203	0:76427232f435	2854	dsc = clust2sect(fp->fs, fp->clust);
emh203	0:76427232f435	2855	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	2856	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
emh203	0:76427232f435	2857	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
emh203	0:76427232f435	2858	#if !_FS_TINY
emh203	0:76427232f435	2859	#if !_FS_READONLY
emh203	0:76427232f435	2860	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
emh203	0:76427232f435	2861	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
emh203	0:76427232f435	2862	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2863	fp->flag &= ~FA__DIRTY;
emh203	0:76427232f435	2864	}
emh203	0:76427232f435	2865	#endif
emh203	0:76427232f435	2866	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
emh203	0:76427232f435	2867	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2868	#endif
emh203	0:76427232f435	2869	fp->dsect = dsc;
emh203	0:76427232f435	2870	}
emh203	0:76427232f435	2871	}
emh203	0:76427232f435	2872	}
emh203	0:76427232f435	2873	} else
emh203	0:76427232f435	2874	#endif
emh203	0:76427232f435	2875
emh203	0:76427232f435	2876	/* Normal Seek */
emh203	0:76427232f435	2877	{
emh203	0:76427232f435	2878	DWORD clst, bcs, nsect, ifptr;
emh203	0:76427232f435	2879
emh203	0:76427232f435	2880	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
emh203	0:76427232f435	2881	#if !_FS_READONLY
emh203	0:76427232f435	2882	&& !(fp->flag & FA_WRITE)
emh203	0:76427232f435	2883	#endif
emh203	0:76427232f435	2884	) ofs = fp->fsize;
emh203	0:76427232f435	2885
emh203	0:76427232f435	2886	ifptr = fp->fptr;
emh203	0:76427232f435	2887	fp->fptr = nsect = 0;
emh203	0:76427232f435	2888	if (ofs) {
emh203	0:76427232f435	2889	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
emh203	0:76427232f435	2890	if (ifptr > 0 &&
emh203	0:76427232f435	2891	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
emh203	0:76427232f435	2892	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
emh203	0:76427232f435	2893	ofs -= fp->fptr;
emh203	0:76427232f435	2894	clst = fp->clust;
emh203	0:76427232f435	2895	} else { /* When seek to back cluster, */
emh203	0:76427232f435	2896	clst = fp->sclust; /* start from the first cluster */
emh203	0:76427232f435	2897	#if !_FS_READONLY
emh203	0:76427232f435	2898	if (clst == 0) { /* If no cluster chain, create a new chain */
emh203	0:76427232f435	2899	clst = create_chain(fp->fs, 0);
emh203	0:76427232f435	2900	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	2901	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2902	fp->sclust = clst;
emh203	0:76427232f435	2903	}
emh203	0:76427232f435	2904	#endif
emh203	0:76427232f435	2905	fp->clust = clst;
emh203	0:76427232f435	2906	}
emh203	0:76427232f435	2907	if (clst != 0) {
emh203	0:76427232f435	2908	while (ofs > bcs) { /* Cluster following loop */
emh203	0:76427232f435	2909	#if !_FS_READONLY
emh203	0:76427232f435	2910	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
emh203	0:76427232f435	2911	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
emh203	0:76427232f435	2912	if (clst == 0) { /* When disk gets full, clip file size */
emh203	0:76427232f435	2913	ofs = bcs; break;
emh203	0:76427232f435	2914	}
emh203	0:76427232f435	2915	} else
emh203	0:76427232f435	2916	#endif
emh203	0:76427232f435	2917	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
emh203	0:76427232f435	2918	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2919	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	2920	fp->clust = clst;
emh203	0:76427232f435	2921	fp->fptr += bcs;
emh203	0:76427232f435	2922	ofs -= bcs;
emh203	0:76427232f435	2923	}
emh203	0:76427232f435	2924	fp->fptr += ofs;
emh203	0:76427232f435	2925	if (ofs % SS(fp->fs)) {
emh203	0:76427232f435	2926	nsect = clust2sect(fp->fs, clst); /* Current sector */
emh203	0:76427232f435	2927	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	2928	nsect += ofs / SS(fp->fs);
emh203	0:76427232f435	2929	}
emh203	0:76427232f435	2930	}
emh203	0:76427232f435	2931	}
emh203	0:76427232f435	2932	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
emh203	0:76427232f435	2933	#if !_FS_TINY
emh203	0:76427232f435	2934	#if !_FS_READONLY
emh203	0:76427232f435	2935	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
emh203	0:76427232f435	2936	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
emh203	0:76427232f435	2937	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2938	fp->flag &= ~FA__DIRTY;
emh203	0:76427232f435	2939	}
emh203	0:76427232f435	2940	#endif
emh203	0:76427232f435	2941	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
emh203	0:76427232f435	2942	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	2943	#endif
emh203	0:76427232f435	2944	fp->dsect = nsect;
emh203	0:76427232f435	2945	}
emh203	0:76427232f435	2946	#if !_FS_READONLY
emh203	0:76427232f435	2947	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
emh203	0:76427232f435	2948	fp->fsize = fp->fptr;
emh203	0:76427232f435	2949	fp->flag \|= FA__WRITTEN;
emh203	0:76427232f435	2950	}
emh203	0:76427232f435	2951	#endif
emh203	0:76427232f435	2952	}
emh203	0:76427232f435	2953
emh203	0:76427232f435	2954	LEAVE_FF(fp->fs, res);
emh203	0:76427232f435	2955	}
emh203	0:76427232f435	2956
emh203	0:76427232f435	2957
emh203	0:76427232f435	2958
emh203	0:76427232f435	2959	#if _FS_MINIMIZE <= 1
emh203	0:76427232f435	2960	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2961	/* Create a Directroy Object */
emh203	0:76427232f435	2962	/-----------------------------------------------------------------------/
emh203	0:76427232f435	2963
emh203	0:76427232f435	2964	FRESULT f_opendir (
emh203	0:76427232f435	2965	eDIR dj, / Pointer to directory object to create */
emh203	0:76427232f435	2966	const TCHAR path / Pointer to the directory path */
emh203	0:76427232f435	2967	)
emh203	0:76427232f435	2968	{
emh203	0:76427232f435	2969	FRESULT res;
emh203	0:76427232f435	2970	DEF_NAMEBUF;
emh203	0:76427232f435	2971
emh203	0:76427232f435	2972
emh203	0:76427232f435	2973	res = chk_mounted(&path, &dj->fs, 0);
emh203	0:76427232f435	2974	if (res == FR_OK) {
emh203	0:76427232f435	2975	INIT_BUF(*dj);
emh203	0:76427232f435	2976	res = follow_path(dj, path); /* Follow the path to the directory */
emh203	0:76427232f435	2977	FREE_BUF();
emh203	0:76427232f435	2978	if (res == FR_OK) { /* Follow completed */
emh203	0:76427232f435	2979	if (dj->dir) { /* It is not the root dir */
emh203	0:76427232f435	2980	if (dj->dir[DIR_Attr] & AM_DIR) { /* The object is a directory */
emh203	0:76427232f435	2981	dj->sclust = LD_CLUST(dj->dir);
emh203	0:76427232f435	2982	} else { /* The object is not a directory */
emh203	0:76427232f435	2983	res = FR_NO_PATH;
emh203	0:76427232f435	2984	}
emh203	0:76427232f435	2985	}
emh203	0:76427232f435	2986	if (res == FR_OK) {
emh203	0:76427232f435	2987	dj->id = dj->fs->id;
emh203	0:76427232f435	2988	res = dir_sdi(dj, 0); /* Rewind dir */
emh203	0:76427232f435	2989	}
emh203	0:76427232f435	2990	}
emh203	0:76427232f435	2991	if (res == FR_NO_FILE) res = FR_NO_PATH;
emh203	0:76427232f435	2992	}
emh203	0:76427232f435	2993
emh203	0:76427232f435	2994	LEAVE_FF(dj->fs, res);
emh203	0:76427232f435	2995	}
emh203	0:76427232f435	2996
emh203	0:76427232f435	2997
emh203	0:76427232f435	2998
emh203	0:76427232f435	2999
emh203	0:76427232f435	3000	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3001	/* Read Directory Entry in Sequense */
emh203	0:76427232f435	3002	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3003
emh203	0:76427232f435	3004	FRESULT f_readdir (
emh203	0:76427232f435	3005	eDIR dj, / Pointer to the open directory object */
emh203	0:76427232f435	3006	FILINFO fno / Pointer to file information to return */
emh203	0:76427232f435	3007	)
emh203	0:76427232f435	3008	{
emh203	0:76427232f435	3009	FRESULT res;
emh203	0:76427232f435	3010	DEF_NAMEBUF;
emh203	0:76427232f435	3011
emh203	0:76427232f435	3012
emh203	0:76427232f435	3013	res = validate(dj->fs, dj->id); /* Check validity of the object */
emh203	0:76427232f435	3014	if (res == FR_OK) {
emh203	0:76427232f435	3015	if (!fno) {
emh203	0:76427232f435	3016	res = dir_sdi(dj, 0); /* Rewind the directory object */
emh203	0:76427232f435	3017	} else {
emh203	0:76427232f435	3018	INIT_BUF(*dj);
emh203	0:76427232f435	3019	res = dir_read(dj); /* Read an directory item */
emh203	0:76427232f435	3020	if (res == FR_NO_FILE) { /* Reached end of dir */
emh203	0:76427232f435	3021	dj->sect = 0;
emh203	0:76427232f435	3022	res = FR_OK;
emh203	0:76427232f435	3023	}
emh203	0:76427232f435	3024	if (res == FR_OK) { /* A valid entry is found */
emh203	0:76427232f435	3025	get_fileinfo(dj, fno); /* Get the object information */
emh203	0:76427232f435	3026	res = dir_next(dj, 0); /* Increment index for next */
emh203	0:76427232f435	3027	if (res == FR_NO_FILE) {
emh203	0:76427232f435	3028	dj->sect = 0;
emh203	0:76427232f435	3029	res = FR_OK;
emh203	0:76427232f435	3030	}
emh203	0:76427232f435	3031	}
emh203	0:76427232f435	3032	FREE_BUF();
emh203	0:76427232f435	3033	}
emh203	0:76427232f435	3034	}
emh203	0:76427232f435	3035
emh203	0:76427232f435	3036	LEAVE_FF(dj->fs, res);
emh203	0:76427232f435	3037	}
emh203	0:76427232f435	3038
emh203	0:76427232f435	3039
emh203	0:76427232f435	3040
emh203	0:76427232f435	3041	#if _FS_MINIMIZE == 0
emh203	0:76427232f435	3042	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3043	/* Get File Status */
emh203	0:76427232f435	3044	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3045
emh203	0:76427232f435	3046	FRESULT f_stat (
emh203	0:76427232f435	3047	const TCHAR path, / Pointer to the file path */
emh203	0:76427232f435	3048	FILINFO fno / Pointer to file information to return */
emh203	0:76427232f435	3049	)
emh203	0:76427232f435	3050	{
emh203	0:76427232f435	3051	FRESULT res;
emh203	0:76427232f435	3052	eDIR dj;
emh203	0:76427232f435	3053	DEF_NAMEBUF;
emh203	0:76427232f435	3054
emh203	0:76427232f435	3055
emh203	0:76427232f435	3056	res = chk_mounted(&path, &dj.fs, 0);
emh203	0:76427232f435	3057	if (res == FR_OK) {
emh203	0:76427232f435	3058	INIT_BUF(dj);
emh203	0:76427232f435	3059	res = follow_path(&dj, path); /* Follow the file path */
emh203	0:76427232f435	3060	if (res == FR_OK) { /* Follow completed */
emh203	0:76427232f435	3061	if (dj.dir) /* Found an object */
emh203	0:76427232f435	3062	get_fileinfo(&dj, fno);
emh203	0:76427232f435	3063	else /* It is root dir */
emh203	0:76427232f435	3064	res = FR_INVALID_NAME;
emh203	0:76427232f435	3065	}
emh203	0:76427232f435	3066	FREE_BUF();
emh203	0:76427232f435	3067	}
emh203	0:76427232f435	3068
emh203	0:76427232f435	3069	LEAVE_FF(dj.fs, res);
emh203	0:76427232f435	3070	}
emh203	0:76427232f435	3071
emh203	0:76427232f435	3072
emh203	0:76427232f435	3073
emh203	0:76427232f435	3074	#if !_FS_READONLY
emh203	0:76427232f435	3075	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3076	/* Get Number of Free Clusters */
emh203	0:76427232f435	3077	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3078
emh203	0:76427232f435	3079	FRESULT f_getfree (
emh203	0:76427232f435	3080	const TCHAR path, / Pointer to the logical drive number (root dir) */
emh203	0:76427232f435	3081	DWORD nclst, / Pointer to the variable to return number of free clusters */
emh203	0:76427232f435	3082	FATFS *fatfs / Pointer to pointer to corresponding file system object to return */
emh203	0:76427232f435	3083	)
emh203	0:76427232f435	3084	{
emh203	0:76427232f435	3085	FRESULT res;
emh203	0:76427232f435	3086	DWORD n, clst, sect, stat;
emh203	0:76427232f435	3087	UINT i;
emh203	0:76427232f435	3088	BYTE fat, *p;
emh203	0:76427232f435	3089
emh203	0:76427232f435	3090
emh203	0:76427232f435	3091	/* Get drive number */
emh203	0:76427232f435	3092	res = chk_mounted(&path, fatfs, 0);
emh203	0:76427232f435	3093	if (res == FR_OK) {
emh203	0:76427232f435	3094	/* If free_clust is valid, return it without full cluster scan */
emh203	0:76427232f435	3095	if ((fatfs)->free_clust <= (fatfs)->n_fatent - 2) {
emh203	0:76427232f435	3096	nclst = (fatfs)->free_clust;
emh203	0:76427232f435	3097	} else {
emh203	0:76427232f435	3098	/* Get number of free clusters */
emh203	0:76427232f435	3099	fat = (*fatfs)->fs_type;
emh203	0:76427232f435	3100	n = 0;
emh203	0:76427232f435	3101	if (fat == FS_FAT12) {
emh203	0:76427232f435	3102	clst = 2;
emh203	0:76427232f435	3103	do {
emh203	0:76427232f435	3104	stat = get_fat(*fatfs, clst);
emh203	0:76427232f435	3105	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
emh203	0:76427232f435	3106	if (stat == 1) { res = FR_INT_ERR; break; }
emh203	0:76427232f435	3107	if (stat == 0) n++;
emh203	0:76427232f435	3108	} while (++clst < (*fatfs)->n_fatent);
emh203	0:76427232f435	3109	} else {
emh203	0:76427232f435	3110	clst = (*fatfs)->n_fatent;
emh203	0:76427232f435	3111	sect = (*fatfs)->fatbase;
emh203	0:76427232f435	3112	i = 0; p = 0;
emh203	0:76427232f435	3113	do {
emh203	0:76427232f435	3114	if (!i) {
emh203	0:76427232f435	3115	res = move_window(*fatfs, sect++);
emh203	0:76427232f435	3116	if (res != FR_OK) break;
emh203	0:76427232f435	3117	p = (*fatfs)->win;
emh203	0:76427232f435	3118	i = SS(*fatfs);
emh203	0:76427232f435	3119	}
emh203	0:76427232f435	3120	if (fat == FS_FAT16) {
emh203	0:76427232f435	3121	if (LD_WORD(p) == 0) n++;
emh203	0:76427232f435	3122	p += 2; i -= 2;
emh203	0:76427232f435	3123	} else {
emh203	0:76427232f435	3124	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
emh203	0:76427232f435	3125	p += 4; i -= 4;
emh203	0:76427232f435	3126	}
emh203	0:76427232f435	3127	} while (--clst);
emh203	0:76427232f435	3128	}
emh203	0:76427232f435	3129	(*fatfs)->free_clust = n;
emh203	0:76427232f435	3130	if (fat == FS_FAT32) (*fatfs)->fsi_flag = 1;
emh203	0:76427232f435	3131	*nclst = n;
emh203	0:76427232f435	3132	}
emh203	0:76427232f435	3133	}
emh203	0:76427232f435	3134	LEAVE_FF(*fatfs, res);
emh203	0:76427232f435	3135	}
emh203	0:76427232f435	3136
emh203	0:76427232f435	3137
emh203	0:76427232f435	3138
emh203	0:76427232f435	3139
emh203	0:76427232f435	3140	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3141	/* Truncate File */
emh203	0:76427232f435	3142	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3143
emh203	0:76427232f435	3144	FRESULT f_truncate (
emh203	0:76427232f435	3145	FIL fp / Pointer to the file object */
emh203	0:76427232f435	3146	)
emh203	0:76427232f435	3147	{
emh203	0:76427232f435	3148	FRESULT res;
emh203	0:76427232f435	3149	DWORD ncl;
emh203	0:76427232f435	3150
emh203	0:76427232f435	3151
emh203	0:76427232f435	3152	res = validate(fp->fs, fp->id); /* Check validity of the object */
emh203	0:76427232f435	3153	if (res == FR_OK) {
emh203	0:76427232f435	3154	if (fp->flag & FA__ERROR) { /* Check abort flag */
emh203	0:76427232f435	3155	res = FR_INT_ERR;
emh203	0:76427232f435	3156	} else {
emh203	0:76427232f435	3157	if (!(fp->flag & FA_WRITE)) /* Check access mode */
emh203	0:76427232f435	3158	res = FR_DENIED;
emh203	0:76427232f435	3159	}
emh203	0:76427232f435	3160	}
emh203	0:76427232f435	3161	if (res == FR_OK) {
emh203	0:76427232f435	3162	if (fp->fsize > fp->fptr) {
emh203	0:76427232f435	3163	fp->fsize = fp->fptr; /* Set file size to current R/W point */
emh203	0:76427232f435	3164	fp->flag \|= FA__WRITTEN;
emh203	0:76427232f435	3165	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
emh203	0:76427232f435	3166	res = remove_chain(fp->fs, fp->sclust);
emh203	0:76427232f435	3167	fp->sclust = 0;
emh203	0:76427232f435	3168	} else { /* When truncate a part of the file, remove remaining clusters */
emh203	0:76427232f435	3169	ncl = get_fat(fp->fs, fp->clust);
emh203	0:76427232f435	3170	res = FR_OK;
emh203	0:76427232f435	3171	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
emh203	0:76427232f435	3172	if (ncl == 1) res = FR_INT_ERR;
emh203	0:76427232f435	3173	if (res == FR_OK && ncl < fp->fs->n_fatent) {
emh203	0:76427232f435	3174	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
emh203	0:76427232f435	3175	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
emh203	0:76427232f435	3176	}
emh203	0:76427232f435	3177	}
emh203	0:76427232f435	3178	}
emh203	0:76427232f435	3179	if (res != FR_OK) fp->flag \|= FA__ERROR;
emh203	0:76427232f435	3180	}
emh203	0:76427232f435	3181
emh203	0:76427232f435	3182	LEAVE_FF(fp->fs, res);
emh203	0:76427232f435	3183	}
emh203	0:76427232f435	3184
emh203	0:76427232f435	3185
emh203	0:76427232f435	3186
emh203	0:76427232f435	3187
emh203	0:76427232f435	3188	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3189	/* Delete a File or Directory */
emh203	0:76427232f435	3190	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3191
emh203	0:76427232f435	3192	FRESULT f_unlink (
emh203	0:76427232f435	3193	const TCHAR path / Pointer to the file or directory path */
emh203	0:76427232f435	3194	)
emh203	0:76427232f435	3195	{
emh203	0:76427232f435	3196	FRESULT res;
emh203	0:76427232f435	3197	eDIR dj, sdj;
emh203	0:76427232f435	3198	BYTE *dir;
emh203	0:76427232f435	3199	DWORD dclst;
emh203	0:76427232f435	3200	DEF_NAMEBUF;
emh203	0:76427232f435	3201
emh203	0:76427232f435	3202
emh203	0:76427232f435	3203	res = chk_mounted(&path, &dj.fs, 1);
emh203	0:76427232f435	3204	if (res == FR_OK) {
emh203	0:76427232f435	3205	INIT_BUF(dj);
emh203	0:76427232f435	3206	res = follow_path(&dj, path); /* Follow the file path */
emh203	0:76427232f435	3207	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
emh203	0:76427232f435	3208	res = FR_INVALID_NAME; /* Cannot remove dot entry */
emh203	0:76427232f435	3209	#if _FS_SHARE
emh203	0:76427232f435	3210	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open file */
emh203	0:76427232f435	3211	#endif
emh203	0:76427232f435	3212	if (res == FR_OK) { /* The object is accessible */
emh203	0:76427232f435	3213	dir = dj.dir;
emh203	0:76427232f435	3214	if (!dir) {
emh203	0:76427232f435	3215	res = FR_INVALID_NAME; /* Cannot remove the start directory */
emh203	0:76427232f435	3216	} else {
emh203	0:76427232f435	3217	if (dir[DIR_Attr] & AM_RDO)
emh203	0:76427232f435	3218	res = FR_DENIED; /* Cannot remove R/O object */
emh203	0:76427232f435	3219	}
emh203	0:76427232f435	3220	dclst = LD_CLUST(dir);
emh203	0:76427232f435	3221	if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-dir? */
emh203	0:76427232f435	3222	if (dclst < 2) {
emh203	0:76427232f435	3223	res = FR_INT_ERR;
emh203	0:76427232f435	3224	} else {
emh203	0:76427232f435	3225	mem_cpy(&sdj, &dj, sizeof(eDIR)); /* Check if the sub-dir is empty or not */
emh203	0:76427232f435	3226	sdj.sclust = dclst;
emh203	0:76427232f435	3227	res = dir_sdi(&sdj, 2); /* Exclude dot entries */
emh203	0:76427232f435	3228	if (res == FR_OK) {
emh203	0:76427232f435	3229	res = dir_read(&sdj);
emh203	0:76427232f435	3230	if (res == FR_OK /* Not empty dir */
emh203	0:76427232f435	3231	#if _FS_RPATH
emh203	0:76427232f435	3232	\|\| dclst == sdj.fs->cdir /* Current dir */
emh203	0:76427232f435	3233	#endif
emh203	0:76427232f435	3234	) res = FR_DENIED;
emh203	0:76427232f435	3235	if (res == FR_NO_FILE) res = FR_OK; /* Empty */
emh203	0:76427232f435	3236	}
emh203	0:76427232f435	3237	}
emh203	0:76427232f435	3238	}
emh203	0:76427232f435	3239	if (res == FR_OK) {
emh203	0:76427232f435	3240	res = dir_remove(&dj); /* Remove the directory entry */
emh203	0:76427232f435	3241	if (res == FR_OK) {
emh203	0:76427232f435	3242	if (dclst) /* Remove the cluster chain if exist */
emh203	0:76427232f435	3243	res = remove_chain(dj.fs, dclst);
emh203	0:76427232f435	3244	if (res == FR_OK) res = sync(dj.fs);
emh203	0:76427232f435	3245	}
emh203	0:76427232f435	3246	}
emh203	0:76427232f435	3247	}
emh203	0:76427232f435	3248	FREE_BUF();
emh203	0:76427232f435	3249	}
emh203	0:76427232f435	3250	LEAVE_FF(dj.fs, res);
emh203	0:76427232f435	3251	}
emh203	0:76427232f435	3252
emh203	0:76427232f435	3253
emh203	0:76427232f435	3254
emh203	0:76427232f435	3255
emh203	0:76427232f435	3256	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3257	/* Create a Directory */
emh203	0:76427232f435	3258	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3259
emh203	0:76427232f435	3260	FRESULT f_mkdir (
emh203	0:76427232f435	3261	const TCHAR path / Pointer to the directory path */
emh203	0:76427232f435	3262	)
emh203	0:76427232f435	3263	{
emh203	0:76427232f435	3264	FRESULT res;
emh203	0:76427232f435	3265	eDIR dj;
emh203	0:76427232f435	3266	BYTE *dir, n;
emh203	0:76427232f435	3267	DWORD dsc, dcl, pcl, tim = get_fattime();
emh203	0:76427232f435	3268	DEF_NAMEBUF;
emh203	0:76427232f435	3269
emh203	0:76427232f435	3270
emh203	0:76427232f435	3271	res = chk_mounted(&path, &dj.fs, 1);
emh203	0:76427232f435	3272	if (res == FR_OK) {
emh203	0:76427232f435	3273	INIT_BUF(dj);
emh203	0:76427232f435	3274	res = follow_path(&dj, path); /* Follow the file path */
emh203	0:76427232f435	3275	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
emh203	0:76427232f435	3276	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
emh203	0:76427232f435	3277	res = FR_INVALID_NAME;
emh203	0:76427232f435	3278	if (res == FR_NO_FILE) { /* Can create a new directory */
emh203	0:76427232f435	3279	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
emh203	0:76427232f435	3280	res = FR_OK;
emh203	0:76427232f435	3281	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
emh203	0:76427232f435	3282	if (dcl == 1) res = FR_INT_ERR;
emh203	0:76427232f435	3283	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
emh203	0:76427232f435	3284	if (res == FR_OK) /* Flush FAT */
emh203	0:76427232f435	3285	res = move_window(dj.fs, 0);
emh203	0:76427232f435	3286	if (res == FR_OK) { /* Initialize the new directory table */
emh203	0:76427232f435	3287	dsc = clust2sect(dj.fs, dcl);
emh203	0:76427232f435	3288	dir = dj.fs->win;
emh203	0:76427232f435	3289	mem_set(dir, 0, SS(dj.fs));
emh203	0:76427232f435	3290	mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */
emh203	0:76427232f435	3291	dir[DIR_Name] = '.';
emh203	0:76427232f435	3292	dir[DIR_Attr] = AM_DIR;
emh203	0:76427232f435	3293	ST_DWORD(dir+DIR_WrtTime, tim);
emh203	0:76427232f435	3294	ST_CLUST(dir, dcl);
emh203	0:76427232f435	3295	mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
emh203	0:76427232f435	3296	dir[33] = '.'; pcl = dj.sclust;
emh203	0:76427232f435	3297	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
emh203	0:76427232f435	3298	pcl = 0;
emh203	0:76427232f435	3299	ST_CLUST(dir+SZ_DIR, pcl);
emh203	0:76427232f435	3300	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
emh203	0:76427232f435	3301	dj.fs->winsect = dsc++;
emh203	0:76427232f435	3302	dj.fs->wflag = 1;
emh203	0:76427232f435	3303	res = move_window(dj.fs, 0);
emh203	0:76427232f435	3304	if (res != FR_OK) break;
emh203	0:76427232f435	3305	mem_set(dir, 0, SS(dj.fs));
emh203	0:76427232f435	3306	}
emh203	0:76427232f435	3307	}
emh203	0:76427232f435	3308	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
emh203	0:76427232f435	3309	if (res != FR_OK) {
emh203	0:76427232f435	3310	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
emh203	0:76427232f435	3311	} else {
emh203	0:76427232f435	3312	dir = dj.dir;
emh203	0:76427232f435	3313	dir[DIR_Attr] = AM_DIR; /* Attribute */
emh203	0:76427232f435	3314	ST_DWORD(dir+DIR_WrtTime, tim); /* Created time */
emh203	0:76427232f435	3315	ST_CLUST(dir, dcl); /* Table start cluster */
emh203	0:76427232f435	3316	dj.fs->wflag = 1;
emh203	0:76427232f435	3317	res = sync(dj.fs);
emh203	0:76427232f435	3318	}
emh203	0:76427232f435	3319	}
emh203	0:76427232f435	3320	FREE_BUF();
emh203	0:76427232f435	3321	}
emh203	0:76427232f435	3322
emh203	0:76427232f435	3323	LEAVE_FF(dj.fs, res);
emh203	0:76427232f435	3324	}
emh203	0:76427232f435	3325
emh203	0:76427232f435	3326
emh203	0:76427232f435	3327
emh203	0:76427232f435	3328
emh203	0:76427232f435	3329	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3330	/* Change Attribute */
emh203	0:76427232f435	3331	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3332
emh203	0:76427232f435	3333	FRESULT f_chmod (
emh203	0:76427232f435	3334	const TCHAR path, / Pointer to the file path */
emh203	0:76427232f435	3335	BYTE value, /* Attribute bits */
emh203	0:76427232f435	3336	BYTE mask /* Attribute mask to change */
emh203	0:76427232f435	3337	)
emh203	0:76427232f435	3338	{
emh203	0:76427232f435	3339	FRESULT res;
emh203	0:76427232f435	3340	eDIR dj;
emh203	0:76427232f435	3341	BYTE *dir;
emh203	0:76427232f435	3342	DEF_NAMEBUF;
emh203	0:76427232f435	3343
emh203	0:76427232f435	3344
emh203	0:76427232f435	3345	res = chk_mounted(&path, &dj.fs, 1);
emh203	0:76427232f435	3346	if (res == FR_OK) {
emh203	0:76427232f435	3347	INIT_BUF(dj);
emh203	0:76427232f435	3348	res = follow_path(&dj, path); /* Follow the file path */
emh203	0:76427232f435	3349	FREE_BUF();
emh203	0:76427232f435	3350	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
emh203	0:76427232f435	3351	res = FR_INVALID_NAME;
emh203	0:76427232f435	3352	if (res == FR_OK) {
emh203	0:76427232f435	3353	dir = dj.dir;
emh203	0:76427232f435	3354	if (!dir) { /* Is it a root directory? */
emh203	0:76427232f435	3355	res = FR_INVALID_NAME;
emh203	0:76427232f435	3356	} else { /* File or sub directory */
emh203	0:76427232f435	3357	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
emh203	0:76427232f435	3358	dir[DIR_Attr] = (value & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
emh203	0:76427232f435	3359	dj.fs->wflag = 1;
emh203	0:76427232f435	3360	res = sync(dj.fs);
emh203	0:76427232f435	3361	}
emh203	0:76427232f435	3362	}
emh203	0:76427232f435	3363	}
emh203	0:76427232f435	3364
emh203	0:76427232f435	3365	LEAVE_FF(dj.fs, res);
emh203	0:76427232f435	3366	}
emh203	0:76427232f435	3367
emh203	0:76427232f435	3368
emh203	0:76427232f435	3369
emh203	0:76427232f435	3370
emh203	0:76427232f435	3371	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3372	/* Change Timestamp */
emh203	0:76427232f435	3373	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3374
emh203	0:76427232f435	3375	FRESULT f_utime (
emh203	0:76427232f435	3376	const TCHAR path, / Pointer to the file/directory name */
emh203	0:76427232f435	3377	const FILINFO fno / Pointer to the time stamp to be set */
emh203	0:76427232f435	3378	)
emh203	0:76427232f435	3379	{
emh203	0:76427232f435	3380	FRESULT res;
emh203	0:76427232f435	3381	eDIR dj;
emh203	0:76427232f435	3382	BYTE *dir;
emh203	0:76427232f435	3383	DEF_NAMEBUF;
emh203	0:76427232f435	3384
emh203	0:76427232f435	3385
emh203	0:76427232f435	3386	res = chk_mounted(&path, &dj.fs, 1);
emh203	0:76427232f435	3387	if (res == FR_OK) {
emh203	0:76427232f435	3388	INIT_BUF(dj);
emh203	0:76427232f435	3389	res = follow_path(&dj, path); /* Follow the file path */
emh203	0:76427232f435	3390	FREE_BUF();
emh203	0:76427232f435	3391	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
emh203	0:76427232f435	3392	res = FR_INVALID_NAME;
emh203	0:76427232f435	3393	if (res == FR_OK) {
emh203	0:76427232f435	3394	dir = dj.dir;
emh203	0:76427232f435	3395	if (!dir) { /* Root directory */
emh203	0:76427232f435	3396	res = FR_INVALID_NAME;
emh203	0:76427232f435	3397	} else { /* File or sub-directory */
emh203	0:76427232f435	3398	ST_WORD(dir+DIR_WrtTime, fno->ftime);
emh203	0:76427232f435	3399	ST_WORD(dir+DIR_WrtDate, fno->fdate);
emh203	0:76427232f435	3400	dj.fs->wflag = 1;
emh203	0:76427232f435	3401	res = sync(dj.fs);
emh203	0:76427232f435	3402	}
emh203	0:76427232f435	3403	}
emh203	0:76427232f435	3404	}
emh203	0:76427232f435	3405
emh203	0:76427232f435	3406	LEAVE_FF(dj.fs, res);
emh203	0:76427232f435	3407	}
emh203	0:76427232f435	3408
emh203	0:76427232f435	3409
emh203	0:76427232f435	3410
emh203	0:76427232f435	3411
emh203	0:76427232f435	3412	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3413	/* Rename File/Directory */
emh203	0:76427232f435	3414	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3415
emh203	0:76427232f435	3416	FRESULT f_rename (
emh203	0:76427232f435	3417	const TCHAR path_old, / Pointer to the old name */
emh203	0:76427232f435	3418	const TCHAR path_new / Pointer to the new name */
emh203	0:76427232f435	3419	)
emh203	0:76427232f435	3420	{
emh203	0:76427232f435	3421	FRESULT res;
emh203	0:76427232f435	3422	eDIR djo, djn;
emh203	0:76427232f435	3423	BYTE buf[21], *dir;
emh203	0:76427232f435	3424	DWORD dw;
emh203	0:76427232f435	3425	DEF_NAMEBUF;
emh203	0:76427232f435	3426
emh203	0:76427232f435	3427
emh203	0:76427232f435	3428	res = chk_mounted(&path_old, &djo.fs, 1);
emh203	0:76427232f435	3429	if (res == FR_OK) {
emh203	0:76427232f435	3430	djn.fs = djo.fs;
emh203	0:76427232f435	3431	INIT_BUF(djo);
emh203	0:76427232f435	3432	res = follow_path(&djo, path_old); /* Check old object */
emh203	0:76427232f435	3433	if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
emh203	0:76427232f435	3434	res = FR_INVALID_NAME;
emh203	0:76427232f435	3435	#if _FS_SHARE
emh203	0:76427232f435	3436	if (res == FR_OK) res = chk_lock(&djo, 2);
emh203	0:76427232f435	3437	#endif
emh203	0:76427232f435	3438	if (res == FR_OK) { /* Old object is found */
emh203	0:76427232f435	3439	if (!djo.dir) { /* Is root dir? */
emh203	0:76427232f435	3440	res = FR_NO_FILE;
emh203	0:76427232f435	3441	} else {
emh203	0:76427232f435	3442	mem_cpy(buf, djo.dir+DIR_Attr, 21); /* Save the object information except for name */
emh203	0:76427232f435	3443	mem_cpy(&djn, &djo, sizeof(eDIR)); /* Check new object */
emh203	0:76427232f435	3444	res = follow_path(&djn, path_new);
emh203	0:76427232f435	3445	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
emh203	0:76427232f435	3446	if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
emh203	0:76427232f435	3447	/* Start critical section that any interruption or error can cause cross-link */
emh203	0:76427232f435	3448	res = dir_register(&djn); /* Register the new entry */
emh203	0:76427232f435	3449	if (res == FR_OK) {
emh203	0:76427232f435	3450	dir = djn.dir; /* Copy object information except for name */
emh203	0:76427232f435	3451	mem_cpy(dir+13, buf+2, 19);
emh203	0:76427232f435	3452	dir[DIR_Attr] = buf[0] \| AM_ARC;
emh203	0:76427232f435	3453	djo.fs->wflag = 1;
emh203	0:76427232f435	3454	if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) { /* Update .. entry in the directory if needed */
emh203	0:76427232f435	3455	dw = clust2sect(djn.fs, LD_CLUST(dir));
emh203	0:76427232f435	3456	if (!dw) {
emh203	0:76427232f435	3457	res = FR_INT_ERR;
emh203	0:76427232f435	3458	} else {
emh203	0:76427232f435	3459	res = move_window(djn.fs, dw);
emh203	0:76427232f435	3460	dir = djn.fs->win+SZ_DIR; /* .. entry */
emh203	0:76427232f435	3461	if (res == FR_OK && dir[1] == '.') {
emh203	0:76427232f435	3462	dw = (djn.fs->fs_type == FS_FAT32 && djn.sclust == djn.fs->dirbase) ? 0 : djn.sclust;
emh203	0:76427232f435	3463	ST_CLUST(dir, dw);
emh203	0:76427232f435	3464	djn.fs->wflag = 1;
emh203	0:76427232f435	3465	}
emh203	0:76427232f435	3466	}
emh203	0:76427232f435	3467	}
emh203	0:76427232f435	3468	if (res == FR_OK) {
emh203	0:76427232f435	3469	res = dir_remove(&djo); /* Remove old entry */
emh203	0:76427232f435	3470	if (res == FR_OK)
emh203	0:76427232f435	3471	res = sync(djo.fs);
emh203	0:76427232f435	3472	}
emh203	0:76427232f435	3473	}
emh203	0:76427232f435	3474	/* End critical section */
emh203	0:76427232f435	3475	}
emh203	0:76427232f435	3476	}
emh203	0:76427232f435	3477	}
emh203	0:76427232f435	3478	FREE_BUF();
emh203	0:76427232f435	3479	}
emh203	0:76427232f435	3480	LEAVE_FF(djo.fs, res);
emh203	0:76427232f435	3481	}
emh203	0:76427232f435	3482
emh203	0:76427232f435	3483	#endif /* !_FS_READONLY */
emh203	0:76427232f435	3484	#endif /* _FS_MINIMIZE == 0 */
emh203	0:76427232f435	3485	#endif /* _FS_MINIMIZE <= 1 */
emh203	0:76427232f435	3486	#endif /* _FS_MINIMIZE <= 2 */
emh203	0:76427232f435	3487
emh203	0:76427232f435	3488
emh203	0:76427232f435	3489
emh203	0:76427232f435	3490	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3491	/* Forward data to the stream directly (available on only tiny cfg) */
emh203	0:76427232f435	3492	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3493	#if _USE_FORWARD && _FS_TINY
emh203	0:76427232f435	3494
emh203	0:76427232f435	3495	FRESULT f_forward (
emh203	0:76427232f435	3496	FIL fp, / Pointer to the file object */
emh203	0:76427232f435	3497	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
emh203	0:76427232f435	3498	UINT btr, /* Number of bytes to forward */
emh203	0:76427232f435	3499	UINT bf / Pointer to number of bytes forwarded */
emh203	0:76427232f435	3500	)
emh203	0:76427232f435	3501	{
emh203	0:76427232f435	3502	FRESULT res;
emh203	0:76427232f435	3503	DWORD remain, clst, sect;
emh203	0:76427232f435	3504	UINT rcnt;
emh203	0:76427232f435	3505	BYTE csect;
emh203	0:76427232f435	3506
emh203	0:76427232f435	3507
emh203	0:76427232f435	3508	bf = 0; / Initialize byte counter */
emh203	0:76427232f435	3509
emh203	0:76427232f435	3510	res = validate(fp->fs, fp->id); /* Check validity of the object */
emh203	0:76427232f435	3511	if (res != FR_OK) LEAVE_FF(fp->fs, res);
emh203	0:76427232f435	3512	if (fp->flag & FA__ERROR) /* Check error flag */
emh203	0:76427232f435	3513	LEAVE_FF(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	3514	if (!(fp->flag & FA_READ)) /* Check access mode */
emh203	0:76427232f435	3515	LEAVE_FF(fp->fs, FR_DENIED);
emh203	0:76427232f435	3516
emh203	0:76427232f435	3517	remain = fp->fsize - fp->fptr;
emh203	0:76427232f435	3518	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
emh203	0:76427232f435	3519
emh203	0:76427232f435	3520	for ( ; btr && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
emh203	0:76427232f435	3521	fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
emh203	0:76427232f435	3522	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
emh203	0:76427232f435	3523	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
emh203	0:76427232f435	3524	if (!csect) { /* On the cluster boundary? */
emh203	0:76427232f435	3525	clst = (fp->fptr == 0) ? /* On the top of the file? */
emh203	0:76427232f435	3526	fp->sclust : get_fat(fp->fs, fp->clust);
emh203	0:76427232f435	3527	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	3528	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	3529	fp->clust = clst; /* Update current cluster */
emh203	0:76427232f435	3530	}
emh203	0:76427232f435	3531	}
emh203	0:76427232f435	3532	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
emh203	0:76427232f435	3533	if (!sect) ABORT(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	3534	sect += csect;
emh203	0:76427232f435	3535	if (move_window(fp->fs, sect)) /* Move sector window */
emh203	0:76427232f435	3536	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:76427232f435	3537	fp->dsect = sect;
emh203	0:76427232f435	3538	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
emh203	0:76427232f435	3539	if (rcnt > btr) rcnt = btr;
emh203	0:76427232f435	3540	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
emh203	0:76427232f435	3541	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
emh203	0:76427232f435	3542	}
emh203	0:76427232f435	3543
emh203	0:76427232f435	3544	LEAVE_FF(fp->fs, FR_OK);
emh203	0:76427232f435	3545	}
emh203	0:76427232f435	3546	#endif /* _USE_FORWARD */
emh203	0:76427232f435	3547
emh203	0:76427232f435	3548
emh203	0:76427232f435	3549
emh203	0:76427232f435	3550	#if _USE_MKFS && !_FS_READONLY
emh203	0:76427232f435	3551	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3552	/* Create File System on the Drive */
emh203	0:76427232f435	3553	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3554	#define N_ROOTDIR 512 /* Number of root dir entries for FAT12/16 */
emh203	0:76427232f435	3555	#define N_FATS 1 /* Number of FAT copies (1 or 2) */
emh203	0:76427232f435	3556
emh203	0:76427232f435	3557
emh203	0:76427232f435	3558	FRESULT f_mkfs (
emh203	0:76427232f435	3559	BYTE drv, /* Logical drive number */
emh203	0:76427232f435	3560	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
emh203	0:76427232f435	3561	UINT au /* Allocation unit size [bytes] */
emh203	0:76427232f435	3562	)
emh203	0:76427232f435	3563	{
emh203	0:76427232f435	3564	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
emh203	0:76427232f435	3565	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
emh203	0:76427232f435	3566	BYTE fmt, md, sys, *tbl, pdrv, part;
emh203	0:76427232f435	3567	DWORD n_clst, vs, n, wsect;
emh203	0:76427232f435	3568	UINT i;
emh203	0:76427232f435	3569	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
emh203	0:76427232f435	3570	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
emh203	0:76427232f435	3571	FATFS *fs;
emh203	0:76427232f435	3572	DSTATUS stat;
emh203	0:76427232f435	3573
emh203	0:76427232f435	3574
emh203	0:76427232f435	3575	/* Check mounted drive and clear work area */
emh203	0:76427232f435	3576	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
emh203	0:76427232f435	3577	if (sfd > 1) return FR_INVALID_PARAMETER;
emh203	0:76427232f435	3578	if (au & (au - 1)) return FR_INVALID_PARAMETER;
emh203	0:76427232f435	3579	fs = FatFs[drv];
emh203	0:76427232f435	3580	if (!fs) return FR_NOT_ENABLED;
emh203	0:76427232f435	3581	fs->fs_type = 0;
emh203	0:76427232f435	3582	pdrv = LD2PD(drv); /* Physical drive */
emh203	0:76427232f435	3583	part = LD2PT(drv); /* Partition (0:auto detect, 1-4:get from partition table)*/
emh203	0:76427232f435	3584
emh203	0:76427232f435	3585	/* Get disk statics */
emh203	0:76427232f435	3586	stat = disk_initialize(pdrv);
emh203	0:76427232f435	3587	if (stat & STA_NOINIT) return FR_NOT_READY;
emh203	0:76427232f435	3588	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
emh203	0:76427232f435	3589	#if _MAX_SS != 512 /* Get disk sector size */
emh203	0:76427232f435	3590	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS)
emh203	0:76427232f435	3591	return FR_DISK_ERR;
emh203	0:76427232f435	3592	#endif
emh203	0:76427232f435	3593	if (_MULTI_PARTITION && part) {
emh203	0:76427232f435	3594	/* Get partition information from partition table in the MBR */
emh203	0:76427232f435	3595	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
emh203	0:76427232f435	3596	if (LD_WORD(fs->win+BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
emh203	0:76427232f435	3597	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
emh203	0:76427232f435	3598	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
emh203	0:76427232f435	3599	b_vol = LD_DWORD(tbl+8); /* Volume start sector */
emh203	0:76427232f435	3600	n_vol = LD_DWORD(tbl+12); /* Volume size */
emh203	0:76427232f435	3601	} else {
emh203	0:76427232f435	3602	/* Create a partition in this function */
emh203	0:76427232f435	3603	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
emh203	0:76427232f435	3604	return FR_DISK_ERR;
emh203	0:76427232f435	3605	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
emh203	0:76427232f435	3606	n_vol -= b_vol; /* Volume size */
emh203	0:76427232f435	3607	}
emh203	0:76427232f435	3608
emh203	0:76427232f435	3609	if (!au) { /* AU auto selection */
emh203	0:76427232f435	3610	vs = n_vol / (2000 / (SS(fs) / 512));
emh203	0:76427232f435	3611	for (i = 0; vs < vst[i]; i++) ;
emh203	0:76427232f435	3612	au = cst[i];
emh203	0:76427232f435	3613	}
emh203	0:76427232f435	3614	au /= SS(fs); /* Number of sectors per cluster */
emh203	0:76427232f435	3615	if (au == 0) au = 1;
emh203	0:76427232f435	3616	if (au > 128) au = 128;
emh203	0:76427232f435	3617
emh203	0:76427232f435	3618	/* Pre-compute number of clusters and FAT syb-type */
emh203	0:76427232f435	3619	n_clst = n_vol / au;
emh203	0:76427232f435	3620	fmt = FS_FAT12;
emh203	0:76427232f435	3621	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
emh203	0:76427232f435	3622	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
emh203	0:76427232f435	3623
emh203	0:76427232f435	3624	/* Determine offset and size of FAT structure */
emh203	0:76427232f435	3625	if (fmt == FS_FAT32) {
emh203	0:76427232f435	3626	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
emh203	0:76427232f435	3627	n_rsv = 32;
emh203	0:76427232f435	3628	n_dir = 0;
emh203	0:76427232f435	3629	} else {
emh203	0:76427232f435	3630	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
emh203	0:76427232f435	3631	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
emh203	0:76427232f435	3632	n_rsv = 1;
emh203	0:76427232f435	3633	n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
emh203	0:76427232f435	3634	}
emh203	0:76427232f435	3635	b_fat = b_vol + n_rsv; /* FAT area start sector */
emh203	0:76427232f435	3636	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
emh203	0:76427232f435	3637	b_data = b_dir + n_dir; /* Data area start sector */
emh203	0:76427232f435	3638	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
emh203	0:76427232f435	3639
emh203	0:76427232f435	3640	/* Align data start sector to erase block boundary (for flash memory media) */
emh203	0:76427232f435	3641	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
emh203	0:76427232f435	3642	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
emh203	0:76427232f435	3643	n = (n - b_data) / N_FATS;
emh203	0:76427232f435	3644	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
emh203	0:76427232f435	3645	n_rsv += n;
emh203	0:76427232f435	3646	b_fat += n;
emh203	0:76427232f435	3647	} else { /* FAT12/16: Expand FAT size */
emh203	0:76427232f435	3648	n_fat += n;
emh203	0:76427232f435	3649	}
emh203	0:76427232f435	3650
emh203	0:76427232f435	3651	/* Determine number of clusters and final check of validity of the FAT sub-type */
emh203	0:76427232f435	3652	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
emh203	0:76427232f435	3653	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
emh203	0:76427232f435	3654	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
emh203	0:76427232f435	3655	return FR_MKFS_ABORTED;
emh203	0:76427232f435	3656
emh203	0:76427232f435	3657	switch (fmt) { /* Determine system ID for partition table */
emh203	0:76427232f435	3658	case FS_FAT12: sys = 0x01; break;
emh203	0:76427232f435	3659	case FS_FAT16: sys = (n_vol < 0x10000) ? 0x04 : 0x06; break;
emh203	0:76427232f435	3660	default: sys = 0x0C;
emh203	0:76427232f435	3661	}
emh203	0:76427232f435	3662
emh203	0:76427232f435	3663	if (_MULTI_PARTITION && part) {
emh203	0:76427232f435	3664	/* Update system ID in the partition table */
emh203	0:76427232f435	3665	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
emh203	0:76427232f435	3666	tbl[4] = sys;
emh203	0:76427232f435	3667	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
emh203	0:76427232f435	3668	md = 0xF8;
emh203	0:76427232f435	3669	} else {
emh203	0:76427232f435	3670	if (sfd) { /* No patition table (SFD) */
emh203	0:76427232f435	3671	md = 0xF0;
emh203	0:76427232f435	3672	} else { /* Create partition table (FDISK) */
emh203	0:76427232f435	3673	mem_set(fs->win, 0, SS(fs));
emh203	0:76427232f435	3674	tbl = fs->win+MBR_Table; /* Create partiton table for single partition in the drive */
emh203	0:76427232f435	3675	tbl[1] = 1; /* Partition start head */
emh203	0:76427232f435	3676	tbl[2] = 1; /* Partition start sector */
emh203	0:76427232f435	3677	tbl[3] = 0; /* Partition start cylinder */
emh203	0:76427232f435	3678	tbl[4] = sys; /* System type */
emh203	0:76427232f435	3679	tbl[5] = 254; /* Partition end head */
emh203	0:76427232f435	3680	n = (b_vol + n_vol) / 63 / 255;
emh203	0:76427232f435	3681	tbl[6] = (BYTE)((n >> 2) \| 63); /* Partiiton end sector */
emh203	0:76427232f435	3682	tbl[7] = (BYTE)n; /* End cylinder */
emh203	0:76427232f435	3683	ST_DWORD(tbl+8, 63); /* Partition start in LBA */
emh203	0:76427232f435	3684	ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
emh203	0:76427232f435	3685	ST_WORD(fs->win+BS_55AA, 0xAA55); /* MBR signature */
emh203	0:76427232f435	3686	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR sector */
emh203	0:76427232f435	3687	return FR_DISK_ERR;
emh203	0:76427232f435	3688	md = 0xF8;
emh203	0:76427232f435	3689	}
emh203	0:76427232f435	3690	}
emh203	0:76427232f435	3691
emh203	0:76427232f435	3692	/* Create BPB in the VBR */
emh203	0:76427232f435	3693	tbl = fs->win; /* Clear sector */
emh203	0:76427232f435	3694	mem_set(tbl, 0, SS(fs));
emh203	0:76427232f435	3695	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
emh203	0:76427232f435	3696	i = SS(fs); /* Sector size */
emh203	0:76427232f435	3697	ST_WORD(tbl+BPB_BytsPerSec, i);
emh203	0:76427232f435	3698	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
emh203	0:76427232f435	3699	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
emh203	0:76427232f435	3700	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
emh203	0:76427232f435	3701	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of rootdir entries */
emh203	0:76427232f435	3702	ST_WORD(tbl+BPB_RootEntCnt, i);
emh203	0:76427232f435	3703	if (n_vol < 0x10000) { /* Number of total sectors */
emh203	0:76427232f435	3704	ST_WORD(tbl+BPB_TotSec16, n_vol);
emh203	0:76427232f435	3705	} else {
emh203	0:76427232f435	3706	ST_DWORD(tbl+BPB_TotSec32, n_vol);
emh203	0:76427232f435	3707	}
emh203	0:76427232f435	3708	tbl[BPB_Media] = md; /* Media descriptor */
emh203	0:76427232f435	3709	ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
emh203	0:76427232f435	3710	ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
emh203	0:76427232f435	3711	ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
emh203	0:76427232f435	3712	n = get_fattime(); /* Use current time as VSN */
emh203	0:76427232f435	3713	if (fmt == FS_FAT32) {
emh203	0:76427232f435	3714	ST_DWORD(tbl+BS_VolID32, n); /* VSN */
emh203	0:76427232f435	3715	ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
emh203	0:76427232f435	3716	ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
emh203	0:76427232f435	3717	ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (VBR+1) */
emh203	0:76427232f435	3718	ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
emh203	0:76427232f435	3719	tbl[BS_DrvNum32] = 0x80; /* Drive number */
emh203	0:76427232f435	3720	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
emh203	0:76427232f435	3721	mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
emh203	0:76427232f435	3722	} else {
emh203	0:76427232f435	3723	ST_DWORD(tbl+BS_VolID, n); /* VSN */
emh203	0:76427232f435	3724	ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
emh203	0:76427232f435	3725	tbl[BS_DrvNum] = 0x80; /* Drive number */
emh203	0:76427232f435	3726	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
emh203	0:76427232f435	3727	mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
emh203	0:76427232f435	3728	}
emh203	0:76427232f435	3729	ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
emh203	0:76427232f435	3730	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
emh203	0:76427232f435	3731	return FR_DISK_ERR;
emh203	0:76427232f435	3732	if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR+6) */
emh203	0:76427232f435	3733	disk_write(pdrv, tbl, b_vol + 6, 1);
emh203	0:76427232f435	3734
emh203	0:76427232f435	3735	/* Initialize FAT area */
emh203	0:76427232f435	3736	wsect = b_fat;
emh203	0:76427232f435	3737	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
emh203	0:76427232f435	3738	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
emh203	0:76427232f435	3739	n = md; /* Media descriptor byte */
emh203	0:76427232f435	3740	if (fmt != FS_FAT32) {
emh203	0:76427232f435	3741	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
emh203	0:76427232f435	3742	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
emh203	0:76427232f435	3743	} else {
emh203	0:76427232f435	3744	n \|= 0xFFFFFF00;
emh203	0:76427232f435	3745	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
emh203	0:76427232f435	3746	ST_DWORD(tbl+4, 0xFFFFFFFF);
emh203	0:76427232f435	3747	ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
emh203	0:76427232f435	3748	}
emh203	0:76427232f435	3749	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
emh203	0:76427232f435	3750	return FR_DISK_ERR;
emh203	0:76427232f435	3751	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
emh203	0:76427232f435	3752	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
emh203	0:76427232f435	3753	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
emh203	0:76427232f435	3754	return FR_DISK_ERR;
emh203	0:76427232f435	3755	}
emh203	0:76427232f435	3756	}
emh203	0:76427232f435	3757
emh203	0:76427232f435	3758	/* Initialize root directory */
emh203	0:76427232f435	3759	i = (fmt == FS_FAT32) ? au : n_dir;
emh203	0:76427232f435	3760	do {
emh203	0:76427232f435	3761	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
emh203	0:76427232f435	3762	return FR_DISK_ERR;
emh203	0:76427232f435	3763	} while (--i);
emh203	0:76427232f435	3764
emh203	0:76427232f435	3765	#if _USE_ERASE /* Erase data area if needed */
emh203	0:76427232f435	3766	{
emh203	0:76427232f435	3767	DWORD eb[2];
emh203	0:76427232f435	3768
emh203	0:76427232f435	3769	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
emh203	0:76427232f435	3770	disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
emh203	0:76427232f435	3771	}
emh203	0:76427232f435	3772	#endif
emh203	0:76427232f435	3773
emh203	0:76427232f435	3774	/* Create FSInfo if needed */
emh203	0:76427232f435	3775	if (fmt == FS_FAT32) {
emh203	0:76427232f435	3776	ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
emh203	0:76427232f435	3777	ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
emh203	0:76427232f435	3778	ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
emh203	0:76427232f435	3779	ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
emh203	0:76427232f435	3780	ST_WORD(tbl+BS_55AA, 0xAA55);
emh203	0:76427232f435	3781	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
emh203	0:76427232f435	3782	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
emh203	0:76427232f435	3783	}
emh203	0:76427232f435	3784
emh203	0:76427232f435	3785	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
emh203	0:76427232f435	3786	}
emh203	0:76427232f435	3787
emh203	0:76427232f435	3788
emh203	0:76427232f435	3789	#if _MULTI_PARTITION == 2
emh203	0:76427232f435	3790	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3791	/* Divide Physical Drive */
emh203	0:76427232f435	3792	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3793
emh203	0:76427232f435	3794	FRESULT f_fdisk (
emh203	0:76427232f435	3795	BYTE pdrv, /* Physical drive number */
emh203	0:76427232f435	3796	const DWORD szt[], /* Pointer to the size table for each partitions */
emh203	0:76427232f435	3797	void* work /* Pointer to the working buffer */
emh203	0:76427232f435	3798	)
emh203	0:76427232f435	3799	{
emh203	0:76427232f435	3800	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
emh203	0:76427232f435	3801	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
emh203	0:76427232f435	3802	DSTATUS stat;
emh203	0:76427232f435	3803	DWORD sz_disk, sz_part, s_part;
emh203	0:76427232f435	3804
emh203	0:76427232f435	3805
emh203	0:76427232f435	3806	stat = disk_initialize(pdrv);
emh203	0:76427232f435	3807	if (stat & STA_NOINIT) return FR_NOT_READY;
emh203	0:76427232f435	3808	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
emh203	0:76427232f435	3809	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
emh203	0:76427232f435	3810
emh203	0:76427232f435	3811	/* Determine CHS in the table regardless of the drive geometry */
emh203	0:76427232f435	3812	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
emh203	0:76427232f435	3813	if (n == 256) n--;
emh203	0:76427232f435	3814	e_hd = n - 1;
emh203	0:76427232f435	3815	sz_cyl = 63 * n;
emh203	0:76427232f435	3816	tot_cyl = sz_disk / sz_cyl;
emh203	0:76427232f435	3817
emh203	0:76427232f435	3818	/* Create partition table */
emh203	0:76427232f435	3819	mem_set(buf, 0, _MAX_SS);
emh203	0:76427232f435	3820	p = buf + MBR_Table; b_cyl = 0;
emh203	0:76427232f435	3821	for (i = 0; i < 4; i++, p += SZ_PTE) {
emh203	0:76427232f435	3822	p_cyl = (szt[i] <= 100) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
emh203	0:76427232f435	3823	if (!p_cyl) continue;
emh203	0:76427232f435	3824	s_part = (DWORD)sz_cyl * b_cyl;
emh203	0:76427232f435	3825	sz_part = (DWORD)sz_cyl * p_cyl;
emh203	0:76427232f435	3826	if (i == 0) { /* Exclude first track of cylinder 0 */
emh203	0:76427232f435	3827	s_hd = 1;
emh203	0:76427232f435	3828	s_part += 63; sz_part -= 63;
emh203	0:76427232f435	3829	} else {
emh203	0:76427232f435	3830	s_hd = 0;
emh203	0:76427232f435	3831	}
emh203	0:76427232f435	3832	e_cyl = b_cyl + p_cyl - 1;
emh203	0:76427232f435	3833	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
emh203	0:76427232f435	3834
emh203	0:76427232f435	3835	/* Set partition table */
emh203	0:76427232f435	3836	p[1] = s_hd; /* Start head */
emh203	0:76427232f435	3837	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
emh203	0:76427232f435	3838	p[3] = (BYTE)b_cyl; /* Start cylinder */
emh203	0:76427232f435	3839	p[4] = 0x06; /* System type (temporary setting) */
emh203	0:76427232f435	3840	p[5] = e_hd; /* End head */
emh203	0:76427232f435	3841	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
emh203	0:76427232f435	3842	p[7] = (BYTE)e_cyl; /* End cylinder */
emh203	0:76427232f435	3843	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
emh203	0:76427232f435	3844	ST_DWORD(p + 12, sz_part); /* Partition size */
emh203	0:76427232f435	3845
emh203	0:76427232f435	3846	/* Next partition */
emh203	0:76427232f435	3847	b_cyl += p_cyl;
emh203	0:76427232f435	3848	}
emh203	0:76427232f435	3849	ST_WORD(p, 0xAA55);
emh203	0:76427232f435	3850
emh203	0:76427232f435	3851	/* Write it to the MBR */
emh203	0:76427232f435	3852	return (disk_write(pdrv, buf, 0, 1) \|\| disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
emh203	0:76427232f435	3853	}
emh203	0:76427232f435	3854
emh203	0:76427232f435	3855
emh203	0:76427232f435	3856	#endif /* _MULTI_PARTITION == 2 */
emh203	0:76427232f435	3857	#endif /* _USE_MKFS && !_FS_READONLY */
emh203	0:76427232f435	3858
emh203	0:76427232f435	3859
emh203	0:76427232f435	3860
emh203	0:76427232f435	3861
emh203	0:76427232f435	3862	#if _USE_STRFUNC
emh203	0:76427232f435	3863	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3864	/* Get a string from the file */
emh203	0:76427232f435	3865	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3866	TCHAR* f_gets (
emh203	0:76427232f435	3867	TCHAR* buff, /* Pointer to the string buffer to read */
emh203	0:76427232f435	3868	int len, /* Size of string buffer (characters) */
emh203	0:76427232f435	3869	FIL* fil /* Pointer to the file object */
emh203	0:76427232f435	3870	)
emh203	0:76427232f435	3871	{
emh203	0:76427232f435	3872	int n = 0;
emh203	0:76427232f435	3873	TCHAR c, *p = buff;
emh203	0:76427232f435	3874	BYTE s[2];
emh203	0:76427232f435	3875	UINT rc;
emh203	0:76427232f435	3876
emh203	0:76427232f435	3877
emh203	0:76427232f435	3878	while (n < len - 1) { /* Read bytes until buffer gets filled */
emh203	0:76427232f435	3879	f_read(fil, s, 1, &rc);
emh203	0:76427232f435	3880	if (rc != 1) break; /* Break on EOF or error */
emh203	0:76427232f435	3881	c = s[0];
emh203	0:76427232f435	3882	#if _LFN_UNICODE /* Read a character in UTF-8 encoding */
emh203	0:76427232f435	3883	if (c >= 0x80) {
emh203	0:76427232f435	3884	if (c < 0xC0) continue; /* Skip stray trailer */
emh203	0:76427232f435	3885	if (c < 0xE0) { /* Two-byte sequense */
emh203	0:76427232f435	3886	f_read(fil, s, 1, &rc);
emh203	0:76427232f435	3887	if (rc != 1) break;
emh203	0:76427232f435	3888	c = ((c & 0x1F) << 6) \| (s[0] & 0x3F);
emh203	0:76427232f435	3889	if (c < 0x80) c = '?';
emh203	0:76427232f435	3890	} else {
emh203	0:76427232f435	3891	if (c < 0xF0) { /* Three-byte sequense */
emh203	0:76427232f435	3892	f_read(fil, s, 2, &rc);
emh203	0:76427232f435	3893	if (rc != 2) break;
emh203	0:76427232f435	3894	c = (c << 12) \| ((s[0] & 0x3F) << 6) \| (s[1] & 0x3F);
emh203	0:76427232f435	3895	if (c < 0x800) c = '?';
emh203	0:76427232f435	3896	} else { /* Reject four-byte sequense */
emh203	0:76427232f435	3897	c = '?';
emh203	0:76427232f435	3898	}
emh203	0:76427232f435	3899	}
emh203	0:76427232f435	3900	}
emh203	0:76427232f435	3901	#endif
emh203	0:76427232f435	3902	#if _USE_STRFUNC >= 2
emh203	0:76427232f435	3903	if (c == '\r') continue; /* Strip '\r' */
emh203	0:76427232f435	3904	#endif
emh203	0:76427232f435	3905	*p++ = c;
emh203	0:76427232f435	3906	n++;
emh203	0:76427232f435	3907	if (c == '\n') break; /* Break on EOL */
emh203	0:76427232f435	3908	}
emh203	0:76427232f435	3909	*p = 0;
emh203	0:76427232f435	3910	return n ? buff : 0; /* When no data read (eof or error), return with error. */
emh203	0:76427232f435	3911	}
emh203	0:76427232f435	3912
emh203	0:76427232f435	3913
emh203	0:76427232f435	3914
emh203	0:76427232f435	3915	#if !_FS_READONLY
emh203	0:76427232f435	3916	#include <stdarg.h>
emh203	0:76427232f435	3917	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3918	/* Put a character to the file */
emh203	0:76427232f435	3919	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3920	int f_putc (
emh203	0:76427232f435	3921	TCHAR c, /* A character to be output */
emh203	0:76427232f435	3922	FIL* fil /* Pointer to the file object */
emh203	0:76427232f435	3923	)
emh203	0:76427232f435	3924	{
emh203	0:76427232f435	3925	UINT bw, btw;
emh203	0:76427232f435	3926	BYTE s[3];
emh203	0:76427232f435	3927
emh203	0:76427232f435	3928
emh203	0:76427232f435	3929	#if _USE_STRFUNC >= 2
emh203	0:76427232f435	3930	if (c == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */
emh203	0:76427232f435	3931	#endif
emh203	0:76427232f435	3932
emh203	0:76427232f435	3933	#if _LFN_UNICODE /* Write the character in UTF-8 encoding */
emh203	0:76427232f435	3934	if (c < 0x80) { /* 7-bit */
emh203	0:76427232f435	3935	s[0] = (BYTE)c;
emh203	0:76427232f435	3936	btw = 1;
emh203	0:76427232f435	3937	} else {
emh203	0:76427232f435	3938	if (c < 0x800) { /* 11-bit */
emh203	0:76427232f435	3939	s[0] = (BYTE)(0xC0 \| (c >> 6));
emh203	0:76427232f435	3940	s[1] = (BYTE)(0x80 \| (c & 0x3F));
emh203	0:76427232f435	3941	btw = 2;
emh203	0:76427232f435	3942	} else { /* 16-bit */
emh203	0:76427232f435	3943	s[0] = (BYTE)(0xE0 \| (c >> 12));
emh203	0:76427232f435	3944	s[1] = (BYTE)(0x80 \| ((c >> 6) & 0x3F));
emh203	0:76427232f435	3945	s[2] = (BYTE)(0x80 \| (c & 0x3F));
emh203	0:76427232f435	3946	btw = 3;
emh203	0:76427232f435	3947	}
emh203	0:76427232f435	3948	}
emh203	0:76427232f435	3949	#else /* Write the character without conversion */
emh203	0:76427232f435	3950	s[0] = (BYTE)c;
emh203	0:76427232f435	3951	btw = 1;
emh203	0:76427232f435	3952	#endif
emh203	0:76427232f435	3953	f_write(fil, s, btw, &bw); /* Write the char to the file */
emh203	0:76427232f435	3954	return (bw == btw) ? 1 : EOF; /* Return the result */
emh203	0:76427232f435	3955	}
emh203	0:76427232f435	3956
emh203	0:76427232f435	3957
emh203	0:76427232f435	3958
emh203	0:76427232f435	3959
emh203	0:76427232f435	3960	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3961	/* Put a string to the file */
emh203	0:76427232f435	3962	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3963	int f_puts (
emh203	0:76427232f435	3964	const TCHAR* str, /* Pointer to the string to be output */
emh203	0:76427232f435	3965	FIL* fil /* Pointer to the file object */
emh203	0:76427232f435	3966	)
emh203	0:76427232f435	3967	{
emh203	0:76427232f435	3968	int n;
emh203	0:76427232f435	3969
emh203	0:76427232f435	3970
emh203	0:76427232f435	3971	for (n = 0; *str; str++, n++) {
emh203	0:76427232f435	3972	if (f_putc(*str, fil) == EOF) return EOF;
emh203	0:76427232f435	3973	}
emh203	0:76427232f435	3974	return n;
emh203	0:76427232f435	3975	}
emh203	0:76427232f435	3976
emh203	0:76427232f435	3977
emh203	0:76427232f435	3978
emh203	0:76427232f435	3979
emh203	0:76427232f435	3980	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3981	/* Put a formatted string to the file */
emh203	0:76427232f435	3982	/-----------------------------------------------------------------------/
emh203	0:76427232f435	3983	int f_printf (
emh203	0:76427232f435	3984	FIL* fil, /* Pointer to the file object */
emh203	0:76427232f435	3985	const TCHAR* str, /* Pointer to the format string */
emh203	0:76427232f435	3986	... /* Optional arguments... */
emh203	0:76427232f435	3987	)
emh203	0:76427232f435	3988	{
emh203	0:76427232f435	3989	va_list arp;
emh203	0:76427232f435	3990	BYTE f, r;
emh203	0:76427232f435	3991	UINT i, j, w;
emh203	0:76427232f435	3992	ULONG v;
emh203	0:76427232f435	3993	TCHAR c, d, s[16], *p;
emh203	0:76427232f435	3994	int res, chc, cc;
emh203	0:76427232f435	3995
emh203	0:76427232f435	3996
emh203	0:76427232f435	3997	va_start(arp, str);
emh203	0:76427232f435	3998
emh203	0:76427232f435	3999	for (cc = res = 0; cc != EOF; res += cc) {
emh203	0:76427232f435	4000	c = *str++;
emh203	0:76427232f435	4001	if (c == 0) break; /* End of string */
emh203	0:76427232f435	4002	if (c != '%') { /* Non escape character */
emh203	0:76427232f435	4003	cc = f_putc(c, fil);
emh203	0:76427232f435	4004	if (cc != EOF) cc = 1;
emh203	0:76427232f435	4005	continue;
emh203	0:76427232f435	4006	}
emh203	0:76427232f435	4007	w = f = 0;
emh203	0:76427232f435	4008	c = *str++;
emh203	0:76427232f435	4009	if (c == '0') { /* Flag: '0' padding */
emh203	0:76427232f435	4010	f = 1; c = *str++;
emh203	0:76427232f435	4011	} else {
emh203	0:76427232f435	4012	if (c == '-') { /* Flag: left justified */
emh203	0:76427232f435	4013	f = 2; c = *str++;
emh203	0:76427232f435	4014	}
emh203	0:76427232f435	4015	}
emh203	0:76427232f435	4016	while (IsDigit(c)) { /* Precision */
emh203	0:76427232f435	4017	w = w * 10 + c - '0';
emh203	0:76427232f435	4018	c = *str++;
emh203	0:76427232f435	4019	}
emh203	0:76427232f435	4020	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
emh203	0:76427232f435	4021	f \|= 4; c = *str++;
emh203	0:76427232f435	4022	}
emh203	0:76427232f435	4023	if (!c) break;
emh203	0:76427232f435	4024	d = c;
emh203	0:76427232f435	4025	if (IsLower(d)) d -= 0x20;
emh203	0:76427232f435	4026	switch (d) { /* Type is... */
emh203	0:76427232f435	4027	case 'S' : /* String */
emh203	0:76427232f435	4028	p = va_arg(arp, TCHAR*);
emh203	0:76427232f435	4029	for (j = 0; p[j]; j++) ;
emh203	0:76427232f435	4030	chc = 0;
emh203	0:76427232f435	4031	if (!(f & 2)) {
emh203	0:76427232f435	4032	while (j++ < w) chc += (cc = f_putc(' ', fil));
emh203	0:76427232f435	4033	}
emh203	0:76427232f435	4034	chc += (cc = f_puts(p, fil));
emh203	0:76427232f435	4035	while (j++ < w) chc += (cc = f_putc(' ', fil));
emh203	0:76427232f435	4036	if (cc != EOF) cc = chc;
emh203	0:76427232f435	4037	continue;
emh203	0:76427232f435	4038	case 'C' : /* Character */
emh203	0:76427232f435	4039	cc = f_putc((TCHAR)va_arg(arp, int), fil); continue;
emh203	0:76427232f435	4040	case 'B' : /* Binary */
emh203	0:76427232f435	4041	r = 2; break;
emh203	0:76427232f435	4042	case 'O' : /* Octal */
emh203	0:76427232f435	4043	r = 8; break;
emh203	0:76427232f435	4044	case 'D' : /* Signed decimal */
emh203	0:76427232f435	4045	case 'U' : /* Unsigned decimal */
emh203	0:76427232f435	4046	r = 10; break;
emh203	0:76427232f435	4047	case 'X' : /* Hexdecimal */
emh203	0:76427232f435	4048	r = 16; break;
emh203	0:76427232f435	4049	default: /* Unknown type (passthrough) */
emh203	0:76427232f435	4050	cc = f_putc(c, fil); continue;
emh203	0:76427232f435	4051	}
emh203	0:76427232f435	4052
emh203	0:76427232f435	4053	/* Get an argument and put it in numeral */
emh203	0:76427232f435	4054	v = (f & 4) ? (ULONG)va_arg(arp, long) : ((d == 'D') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int));
emh203	0:76427232f435	4055	if (d == 'D' && (v & 0x80000000)) {
emh203	0:76427232f435	4056	v = 0 - v;
emh203	0:76427232f435	4057	f \|= 8;
emh203	0:76427232f435	4058	}
emh203	0:76427232f435	4059	i = 0;
emh203	0:76427232f435	4060	do {
emh203	0:76427232f435	4061	d = (TCHAR)(v % r); v /= r;
emh203	0:76427232f435	4062	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
emh203	0:76427232f435	4063	s[i++] = d + '0';
emh203	0:76427232f435	4064	} while (v && i < sizeof(s) / sizeof(s[0]));
emh203	0:76427232f435	4065	if (f & 8) s[i++] = '-';
emh203	0:76427232f435	4066	j = i; d = (f & 1) ? '0' : ' ';
emh203	0:76427232f435	4067	res = 0;
emh203	0:76427232f435	4068	while (!(f & 2) && j++ < w) res += (cc = f_putc(d, fil));
emh203	0:76427232f435	4069	do res += (cc = f_putc(s[--i], fil)); while(i);
emh203	0:76427232f435	4070	while (j++ < w) res += (cc = f_putc(' ', fil));
emh203	0:76427232f435	4071	if (cc != EOF) cc = res;
emh203	0:76427232f435	4072	}
emh203	0:76427232f435	4073
emh203	0:76427232f435	4074	va_end(arp);
emh203	0:76427232f435	4075	return (cc == EOF) ? cc : res;
emh203	0:76427232f435	4076	}
emh203	0:76427232f435	4077
emh203	0:76427232f435	4078	#endif /* !_FS_READONLY */
emh203	0:76427232f435	4079	#endif /* _USE_STRFUNC */
emh203	0:76427232f435	4080
emh203	0:76427232f435	4081

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	16 Feb 2012
Imports:	1
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	2
Followers:	1

FAT_FS/ff.c@0:76427232f435, 2012-02-16 (annotated)

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