COMPACT_FLASH - Compact Flash I/O test

Users » emh203 » Code » COMPACT_FLASH

Eli Hughes / Mbed 2 deprecated COMPACT_FLASH

Compact Flash I/O test

FAT_FS/ff.c@1:dc171f34db9b, 2011-12-30 (annotated)

Committer:: emh203
Date:: Fri Dec 30 21:02:16 2011 +0000
Revision:: 1:dc171f34db9b
Parent:: 0:6b1e6c9e48ba

Who changed what in which revision?

User	Revision	Line number	New contents of line
emh203	0:6b1e6c9e48ba	1	/*----------------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2	/ FatFs - FAT file system module R0.09 (C)ChaN, 2011
emh203	0:6b1e6c9e48ba	3	/-----------------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	4	/ FatFs module is a generic FAT file system module for small embedded systems.
emh203	0:6b1e6c9e48ba	5	/ This is a free software that opened for education, research and commercial
emh203	0:6b1e6c9e48ba	6	/ developments under license policy of following terms.
emh203	0:6b1e6c9e48ba	7	/
emh203	0:6b1e6c9e48ba	8	/ Copyright (C) 2011, ChaN, all right reserved.
emh203	0:6b1e6c9e48ba	9	/
emh203	0:6b1e6c9e48ba	10	/ * The FatFs module is a free software and there is NO WARRANTY.
emh203	0:6b1e6c9e48ba	11	/ * No restriction on use. You can use, modify and redistribute it for
emh203	0:6b1e6c9e48ba	12	/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
emh203	0:6b1e6c9e48ba	13	/ * Redistributions of source code must retain the above copyright notice.
emh203	0:6b1e6c9e48ba	14	/
emh203	0:6b1e6c9e48ba	15	/-----------------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	16	/ Feb 26,'06 R0.00 Prototype.
emh203	0:6b1e6c9e48ba	17	/
emh203	0:6b1e6c9e48ba	18	/ Apr 29,'06 R0.01 First stable version.
emh203	0:6b1e6c9e48ba	19	/
emh203	0:6b1e6c9e48ba	20	/ Jun 01,'06 R0.02 Added FAT12 support.
emh203	0:6b1e6c9e48ba	21	/ Removed unbuffered mode.
emh203	0:6b1e6c9e48ba	22	/ Fixed a problem on small (<32M) partition.
emh203	0:6b1e6c9e48ba	23	/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
emh203	0:6b1e6c9e48ba	24	/
emh203	0:6b1e6c9e48ba	25	/ Sep 22,'06 R0.03 Added f_rename().
emh203	0:6b1e6c9e48ba	26	/ Changed option _FS_MINIMUM to _FS_MINIMIZE.
emh203	0:6b1e6c9e48ba	27	/ Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
emh203	0:6b1e6c9e48ba	28	/ Fixed f_mkdir() creates incorrect directory on FAT32.
emh203	0:6b1e6c9e48ba	29	/
emh203	0:6b1e6c9e48ba	30	/ Feb 04,'07 R0.04 Supported multiple drive system.
emh203	0:6b1e6c9e48ba	31	/ Changed some interfaces for multiple drive system.
emh203	0:6b1e6c9e48ba	32	/ Changed f_mountdrv() to f_mount().
emh203	0:6b1e6c9e48ba	33	/ Added f_mkfs().
emh203	0:6b1e6c9e48ba	34	/ Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
emh203	0:6b1e6c9e48ba	35	/ Added a capability of extending file size to f_lseek().
emh203	0:6b1e6c9e48ba	36	/ Added minimization level 3.
emh203	0:6b1e6c9e48ba	37	/ Fixed an endian sensitive code in f_mkfs().
emh203	0:6b1e6c9e48ba	38	/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
emh203	0:6b1e6c9e48ba	39	/ Added FSInfo support.
emh203	0:6b1e6c9e48ba	40	/ Fixed DBCS name can result FR_INVALID_NAME.
emh203	0:6b1e6c9e48ba	41	/ Fixed short seek (<= csize) collapses the file object.
emh203	0:6b1e6c9e48ba	42	/
emh203	0:6b1e6c9e48ba	43	/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
emh203	0:6b1e6c9e48ba	44	/ Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
emh203	0:6b1e6c9e48ba	45	/ Fixed f_mkdir() on FAT32 creates incorrect directory.
emh203	0:6b1e6c9e48ba	46	/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
emh203	0:6b1e6c9e48ba	47	/ Fixed off by one error at FAT sub-type determination.
emh203	0:6b1e6c9e48ba	48	/ Fixed btr in f_read() can be mistruncated.
emh203	0:6b1e6c9e48ba	49	/ Fixed cached sector is not flushed when create and close without write.
emh203	0:6b1e6c9e48ba	50	/
emh203	0:6b1e6c9e48ba	51	/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
emh203	0:6b1e6c9e48ba	52	/ Improved performance of f_lseek() on moving to the same or following cluster.
emh203	0:6b1e6c9e48ba	53	/
emh203	0:6b1e6c9e48ba	54	/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
emh203	0:6b1e6c9e48ba	55	/ Added long file name feature.
emh203	0:6b1e6c9e48ba	56	/ Added multiple code page feature.
emh203	0:6b1e6c9e48ba	57	/ Added re-entrancy for multitask operation.
emh203	0:6b1e6c9e48ba	58	/ Added auto cluster size selection to f_mkfs().
emh203	0:6b1e6c9e48ba	59	/ Added rewind option to f_readdir().
emh203	0:6b1e6c9e48ba	60	/ Changed result code of critical errors.
emh203	0:6b1e6c9e48ba	61	/ Renamed string functions to avoid name collision.
emh203	0:6b1e6c9e48ba	62	/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
emh203	0:6b1e6c9e48ba	63	/ Added multiple sector size feature.
emh203	0:6b1e6c9e48ba	64	/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
emh203	0:6b1e6c9e48ba	65	/ Fixed wrong cache control in f_lseek().
emh203	0:6b1e6c9e48ba	66	/ Added relative path feature.
emh203	0:6b1e6c9e48ba	67	/ Added f_chdir() and f_chdrive().
emh203	0:6b1e6c9e48ba	68	/ Added proper case conversion to extended char.
emh203	0:6b1e6c9e48ba	69	/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
emh203	0:6b1e6c9e48ba	70	/ Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
emh203	0:6b1e6c9e48ba	71	/ Fixed name matching error on the 13 char boundary.
emh203	0:6b1e6c9e48ba	72	/ Added a configuration option, _LFN_UNICODE.
emh203	0:6b1e6c9e48ba	73	/ Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
emh203	0:6b1e6c9e48ba	74	/
emh203	0:6b1e6c9e48ba	75	/ May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
emh203	0:6b1e6c9e48ba	76	/ Added file lock feature. (_FS_SHARE)
emh203	0:6b1e6c9e48ba	77	/ Added fast seek feature. (_USE_FASTSEEK)
emh203	0:6b1e6c9e48ba	78	/ Changed some types on the API, XCHAR->TCHAR.
emh203	0:6b1e6c9e48ba	79	/ Changed fname member in the FILINFO structure on Unicode cfg.
emh203	0:6b1e6c9e48ba	80	/ String functions support UTF-8 encoding files on Unicode cfg.
emh203	0:6b1e6c9e48ba	81	/ Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
emh203	0:6b1e6c9e48ba	82	/ Added sector erase feature. (_USE_ERASE)
emh203	0:6b1e6c9e48ba	83	/ Moved file lock semaphore table from fs object to the bss.
emh203	0:6b1e6c9e48ba	84	/ Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
emh203	0:6b1e6c9e48ba	85	/ Fixed f_mkfs() creates wrong FAT32 volume.
emh203	0:6b1e6c9e48ba	86	/ Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
emh203	0:6b1e6c9e48ba	87	/ f_lseek() reports required table size on creating CLMP.
emh203	0:6b1e6c9e48ba	88	/ Extended format syntax of f_printf function.
emh203	0:6b1e6c9e48ba	89	/ Ignores duplicated directory separators in given path names.
emh203	0:6b1e6c9e48ba	90	/
emh203	0:6b1e6c9e48ba	91	/ Sep 06,'11 R0.09 f_mkfs() supports multiple partition to finish the multiple partition feature.
emh203	0:6b1e6c9e48ba	92	/ Added f_fdisk(). (_MULTI_PARTITION = 2)
emh203	0:6b1e6c9e48ba	93	/---------------------------------------------------------------------------*/
emh203	0:6b1e6c9e48ba	94
emh203	0:6b1e6c9e48ba	95	#include "ff.h" /* FatFs configurations and declarations */
emh203	0:6b1e6c9e48ba	96	#include "diskio.h" /* Declarations of low level disk I/O functions */
emh203	0:6b1e6c9e48ba	97
emh203	0:6b1e6c9e48ba	98
emh203	0:6b1e6c9e48ba	99	/*--------------------------------------------------------------------------
emh203	0:6b1e6c9e48ba	100
emh203	0:6b1e6c9e48ba	101	Module Private Definitions
emh203	0:6b1e6c9e48ba	102
emh203	0:6b1e6c9e48ba	103	---------------------------------------------------------------------------*/
emh203	0:6b1e6c9e48ba	104
emh203	0:6b1e6c9e48ba	105	#if _FATFS != 6502 /* Revision ID */
emh203	0:6b1e6c9e48ba	106	#error Wrong include file (ff.h).
emh203	0:6b1e6c9e48ba	107	#endif
emh203	0:6b1e6c9e48ba	108
emh203	0:6b1e6c9e48ba	109
emh203	0:6b1e6c9e48ba	110	/* Definitions on sector size */
emh203	0:6b1e6c9e48ba	111	#if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
emh203	0:6b1e6c9e48ba	112	#error Wrong sector size.
emh203	0:6b1e6c9e48ba	113	#endif
emh203	0:6b1e6c9e48ba	114	#if _MAX_SS != 512
emh203	0:6b1e6c9e48ba	115	#define SS(fs) ((fs)->ssize) /* Variable sector size */
emh203	0:6b1e6c9e48ba	116	#else
emh203	0:6b1e6c9e48ba	117	#define SS(fs) 512U /* Fixed sector size */
emh203	0:6b1e6c9e48ba	118	#endif
emh203	0:6b1e6c9e48ba	119
emh203	0:6b1e6c9e48ba	120
emh203	0:6b1e6c9e48ba	121	/* Reentrancy related */
emh203	0:6b1e6c9e48ba	122	#if _FS_REENTRANT
emh203	0:6b1e6c9e48ba	123	#if _USE_LFN == 1
emh203	0:6b1e6c9e48ba	124	#error Static LFN work area must not be used in re-entrant configuration.
emh203	0:6b1e6c9e48ba	125	#endif
emh203	0:6b1e6c9e48ba	126	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
emh203	0:6b1e6c9e48ba	127	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
emh203	0:6b1e6c9e48ba	128	#else
emh203	0:6b1e6c9e48ba	129	#define ENTER_FF(fs)
emh203	0:6b1e6c9e48ba	130	#define LEAVE_FF(fs, res) return res
emh203	0:6b1e6c9e48ba	131	#endif
emh203	0:6b1e6c9e48ba	132
emh203	0:6b1e6c9e48ba	133	#define ABORT(fs, res) { fp->flag \|= FA__ERROR; LEAVE_FF(fs, res); }
emh203	0:6b1e6c9e48ba	134
emh203	0:6b1e6c9e48ba	135
emh203	0:6b1e6c9e48ba	136	/* File shareing feature */
emh203	0:6b1e6c9e48ba	137	#if _FS_SHARE
emh203	0:6b1e6c9e48ba	138	#if _FS_READONLY
emh203	0:6b1e6c9e48ba	139	#error _FS_SHARE must be 0 on read-only cfg.
emh203	0:6b1e6c9e48ba	140	#endif
emh203	0:6b1e6c9e48ba	141	typedef struct {
emh203	0:6b1e6c9e48ba	142	FATFS fs; / File ID 1, volume (NULL:blank entry) */
emh203	0:6b1e6c9e48ba	143	DWORD clu; /* File ID 2, directory */
emh203	0:6b1e6c9e48ba	144	WORD idx; /* File ID 3, directory index */
emh203	0:6b1e6c9e48ba	145	WORD ctr; /* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:write mode */
emh203	0:6b1e6c9e48ba	146	} FILESEM;
emh203	0:6b1e6c9e48ba	147	#endif
emh203	0:6b1e6c9e48ba	148
emh203	0:6b1e6c9e48ba	149
emh203	0:6b1e6c9e48ba	150	/* Misc definitions */
emh203	0:6b1e6c9e48ba	151	#define LD_CLUST(dir) (((DWORD)LD_WORD(dir+DIR_FstClusHI)<<16) \| LD_WORD(dir+DIR_FstClusLO))
emh203	0:6b1e6c9e48ba	152	#define ST_CLUST(dir,cl) {ST_WORD(dir+DIR_FstClusLO, cl); ST_WORD(dir+DIR_FstClusHI, (DWORD)cl>>16);}
emh203	0:6b1e6c9e48ba	153
emh203	0:6b1e6c9e48ba	154
emh203	0:6b1e6c9e48ba	155	/* DBCS code ranges and SBCS extend char conversion table */
emh203	0:6b1e6c9e48ba	156
emh203	0:6b1e6c9e48ba	157	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
emh203	0:6b1e6c9e48ba	158	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
emh203	0:6b1e6c9e48ba	159	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
emh203	0:6b1e6c9e48ba	160	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
emh203	0:6b1e6c9e48ba	161	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
emh203	0:6b1e6c9e48ba	162	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
emh203	0:6b1e6c9e48ba	163	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
emh203	0:6b1e6c9e48ba	164	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
emh203	0:6b1e6c9e48ba	165	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
emh203	0:6b1e6c9e48ba	166
emh203	0:6b1e6c9e48ba	167	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
emh203	0:6b1e6c9e48ba	168	#define _DF1S 0x81
emh203	0:6b1e6c9e48ba	169	#define _DF1E 0xFE
emh203	0:6b1e6c9e48ba	170	#define _DS1S 0x40
emh203	0:6b1e6c9e48ba	171	#define _DS1E 0x7E
emh203	0:6b1e6c9e48ba	172	#define _DS2S 0x80
emh203	0:6b1e6c9e48ba	173	#define _DS2E 0xFE
emh203	0:6b1e6c9e48ba	174
emh203	0:6b1e6c9e48ba	175	#elif _CODE_PAGE == 949 /* Korean */
emh203	0:6b1e6c9e48ba	176	#define _DF1S 0x81
emh203	0:6b1e6c9e48ba	177	#define _DF1E 0xFE
emh203	0:6b1e6c9e48ba	178	#define _DS1S 0x41
emh203	0:6b1e6c9e48ba	179	#define _DS1E 0x5A
emh203	0:6b1e6c9e48ba	180	#define _DS2S 0x61
emh203	0:6b1e6c9e48ba	181	#define _DS2E 0x7A
emh203	0:6b1e6c9e48ba	182	#define _DS3S 0x81
emh203	0:6b1e6c9e48ba	183	#define _DS3E 0xFE
emh203	0:6b1e6c9e48ba	184
emh203	0:6b1e6c9e48ba	185	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
emh203	0:6b1e6c9e48ba	186	#define _DF1S 0x81
emh203	0:6b1e6c9e48ba	187	#define _DF1E 0xFE
emh203	0:6b1e6c9e48ba	188	#define _DS1S 0x40
emh203	0:6b1e6c9e48ba	189	#define _DS1E 0x7E
emh203	0:6b1e6c9e48ba	190	#define _DS2S 0xA1
emh203	0:6b1e6c9e48ba	191	#define _DS2E 0xFE
emh203	0:6b1e6c9e48ba	192
emh203	0:6b1e6c9e48ba	193	#elif _CODE_PAGE == 437 /* U.S. (OEM) */
emh203	0:6b1e6c9e48ba	194	#define _DF1S 0
emh203	0:6b1e6c9e48ba	195	#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	0:6b1e6c9e48ba	196	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	0:6b1e6c9e48ba	197	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	0:6b1e6c9e48ba	198	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	0:6b1e6c9e48ba	199
emh203	0:6b1e6c9e48ba	200	#elif _CODE_PAGE == 720 /* Arabic (OEM) */
emh203	0:6b1e6c9e48ba	201	#define _DF1S 0
emh203	0:6b1e6c9e48ba	202	#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	0:6b1e6c9e48ba	203	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	0:6b1e6c9e48ba	204	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	0:6b1e6c9e48ba	205	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	0:6b1e6c9e48ba	206
emh203	0:6b1e6c9e48ba	207	#elif _CODE_PAGE == 737 /* Greek (OEM) */
emh203	0:6b1e6c9e48ba	208	#define _DF1S 0
emh203	0:6b1e6c9e48ba	209	#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	0:6b1e6c9e48ba	210	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	0:6b1e6c9e48ba	211	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	0:6b1e6c9e48ba	212	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	0:6b1e6c9e48ba	213
emh203	0:6b1e6c9e48ba	214	#elif _CODE_PAGE == 775 /* Baltic (OEM) */
emh203	0:6b1e6c9e48ba	215	#define _DF1S 0
emh203	0:6b1e6c9e48ba	216	#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	0:6b1e6c9e48ba	217	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	0:6b1e6c9e48ba	218	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	0:6b1e6c9e48ba	219	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	0:6b1e6c9e48ba	220
emh203	0:6b1e6c9e48ba	221	#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
emh203	0:6b1e6c9e48ba	222	#define _DF1S 0
emh203	0:6b1e6c9e48ba	223	#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	0:6b1e6c9e48ba	224	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	0:6b1e6c9e48ba	225	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	0:6b1e6c9e48ba	226	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	0:6b1e6c9e48ba	227
emh203	0:6b1e6c9e48ba	228	#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
emh203	0:6b1e6c9e48ba	229	#define _DF1S 0
emh203	0:6b1e6c9e48ba	230	#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	0:6b1e6c9e48ba	231	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	0:6b1e6c9e48ba	232	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	0:6b1e6c9e48ba	233	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	0:6b1e6c9e48ba	234
emh203	0:6b1e6c9e48ba	235	#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
emh203	0:6b1e6c9e48ba	236	#define _DF1S 0
emh203	0:6b1e6c9e48ba	237	#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	0:6b1e6c9e48ba	238	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	0:6b1e6c9e48ba	239	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	0:6b1e6c9e48ba	240	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	0:6b1e6c9e48ba	241
emh203	0:6b1e6c9e48ba	242	#elif _CODE_PAGE == 857 /* Turkish (OEM) */
emh203	0:6b1e6c9e48ba	243	#define _DF1S 0
emh203	0:6b1e6c9e48ba	244	#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	0:6b1e6c9e48ba	245	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	0:6b1e6c9e48ba	246	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	0:6b1e6c9e48ba	247	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	0:6b1e6c9e48ba	248
emh203	0:6b1e6c9e48ba	249	#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
emh203	0:6b1e6c9e48ba	250	#define _DF1S 0
emh203	0:6b1e6c9e48ba	251	#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	0:6b1e6c9e48ba	252	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	0:6b1e6c9e48ba	253	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	0:6b1e6c9e48ba	254	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	0:6b1e6c9e48ba	255
emh203	0:6b1e6c9e48ba	256	#elif _CODE_PAGE == 862 /* Hebrew (OEM) */
emh203	0:6b1e6c9e48ba	257	#define _DF1S 0
emh203	0:6b1e6c9e48ba	258	#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	0:6b1e6c9e48ba	259	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	0:6b1e6c9e48ba	260	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	0:6b1e6c9e48ba	261	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	0:6b1e6c9e48ba	262
emh203	0:6b1e6c9e48ba	263	#elif _CODE_PAGE == 866 /* Russian (OEM) */
emh203	0:6b1e6c9e48ba	264	#define _DF1S 0
emh203	0:6b1e6c9e48ba	265	#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	0:6b1e6c9e48ba	266	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	0:6b1e6c9e48ba	267	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	0:6b1e6c9e48ba	268	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	0:6b1e6c9e48ba	269
emh203	0:6b1e6c9e48ba	270	#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
emh203	0:6b1e6c9e48ba	271	#define _DF1S 0
emh203	0:6b1e6c9e48ba	272	#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	0:6b1e6c9e48ba	273	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	0:6b1e6c9e48ba	274	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	0:6b1e6c9e48ba	275	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	0:6b1e6c9e48ba	276
emh203	0:6b1e6c9e48ba	277	#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
emh203	0:6b1e6c9e48ba	278	#define _DF1S 0
emh203	0:6b1e6c9e48ba	279	#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	0:6b1e6c9e48ba	280	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	0:6b1e6c9e48ba	281	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	0:6b1e6c9e48ba	282	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	0:6b1e6c9e48ba	283
emh203	0:6b1e6c9e48ba	284	#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
emh203	0:6b1e6c9e48ba	285	#define _DF1S 0
emh203	0:6b1e6c9e48ba	286	#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	0:6b1e6c9e48ba	287	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	0:6b1e6c9e48ba	288	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	0:6b1e6c9e48ba	289	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	0:6b1e6c9e48ba	290
emh203	0:6b1e6c9e48ba	291	#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
emh203	0:6b1e6c9e48ba	292	#define _DF1S 0
emh203	0:6b1e6c9e48ba	293	#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	0:6b1e6c9e48ba	294	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	0:6b1e6c9e48ba	295	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	0:6b1e6c9e48ba	296	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	0:6b1e6c9e48ba	297
emh203	0:6b1e6c9e48ba	298	#elif _CODE_PAGE == 1253 /* Greek (Windows) */
emh203	0:6b1e6c9e48ba	299	#define _DF1S 0
emh203	0:6b1e6c9e48ba	300	#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	0:6b1e6c9e48ba	301	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	0:6b1e6c9e48ba	302	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	0:6b1e6c9e48ba	303	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	0:6b1e6c9e48ba	304
emh203	0:6b1e6c9e48ba	305	#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
emh203	0:6b1e6c9e48ba	306	#define _DF1S 0
emh203	0:6b1e6c9e48ba	307	#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	0:6b1e6c9e48ba	308	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	0:6b1e6c9e48ba	309	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	0:6b1e6c9e48ba	310	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	0:6b1e6c9e48ba	311
emh203	0:6b1e6c9e48ba	312	#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
emh203	0:6b1e6c9e48ba	313	#define _DF1S 0
emh203	0:6b1e6c9e48ba	314	#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	0:6b1e6c9e48ba	315	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	0:6b1e6c9e48ba	316	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	0:6b1e6c9e48ba	317	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	0:6b1e6c9e48ba	318
emh203	0:6b1e6c9e48ba	319	#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
emh203	0:6b1e6c9e48ba	320	#define _DF1S 0
emh203	0:6b1e6c9e48ba	321	#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	0:6b1e6c9e48ba	322	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	0:6b1e6c9e48ba	323	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	0:6b1e6c9e48ba	324	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	0:6b1e6c9e48ba	325
emh203	0:6b1e6c9e48ba	326	#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
emh203	0:6b1e6c9e48ba	327	#define _DF1S 0
emh203	0:6b1e6c9e48ba	328	#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	0:6b1e6c9e48ba	329	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	0:6b1e6c9e48ba	330	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	0:6b1e6c9e48ba	331	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	0:6b1e6c9e48ba	332
emh203	0:6b1e6c9e48ba	333	#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
emh203	0:6b1e6c9e48ba	334	#define _DF1S 0
emh203	0:6b1e6c9e48ba	335	#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	0:6b1e6c9e48ba	336	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	0:6b1e6c9e48ba	337	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	0:6b1e6c9e48ba	338	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	0:6b1e6c9e48ba	339
emh203	0:6b1e6c9e48ba	340	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
emh203	0:6b1e6c9e48ba	341	#if _USE_LFN
emh203	0:6b1e6c9e48ba	342	#error Cannot use LFN feature without valid code page.
emh203	0:6b1e6c9e48ba	343	#endif
emh203	0:6b1e6c9e48ba	344	#define _DF1S 0
emh203	0:6b1e6c9e48ba	345
emh203	0:6b1e6c9e48ba	346	#else
emh203	0:6b1e6c9e48ba	347	#error Unknown code page
emh203	0:6b1e6c9e48ba	348
emh203	0:6b1e6c9e48ba	349	#endif
emh203	0:6b1e6c9e48ba	350
emh203	0:6b1e6c9e48ba	351
emh203	0:6b1e6c9e48ba	352	/* Character code support macros */
emh203	0:6b1e6c9e48ba	353	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
emh203	0:6b1e6c9e48ba	354	#define IsLower(c) (((c)>='a')&&((c)<='z'))
emh203	0:6b1e6c9e48ba	355	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
emh203	0:6b1e6c9e48ba	356
emh203	0:6b1e6c9e48ba	357	#if _DF1S /* Code page is DBCS */
emh203	0:6b1e6c9e48ba	358
emh203	0:6b1e6c9e48ba	359	#ifdef _DF2S /* Two 1st byte areas */
emh203	0:6b1e6c9e48ba	360	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
emh203	0:6b1e6c9e48ba	361	#else /* One 1st byte area */
emh203	0:6b1e6c9e48ba	362	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
emh203	0:6b1e6c9e48ba	363	#endif
emh203	0:6b1e6c9e48ba	364
emh203	0:6b1e6c9e48ba	365	#ifdef _DS3S /* Three 2nd byte areas */
emh203	0:6b1e6c9e48ba	366	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
emh203	0:6b1e6c9e48ba	367	#else /* Two 2nd byte areas */
emh203	0:6b1e6c9e48ba	368	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
emh203	0:6b1e6c9e48ba	369	#endif
emh203	0:6b1e6c9e48ba	370
emh203	0:6b1e6c9e48ba	371	#else /* Code page is SBCS */
emh203	0:6b1e6c9e48ba	372
emh203	0:6b1e6c9e48ba	373	#define IsDBCS1(c) 0
emh203	0:6b1e6c9e48ba	374	#define IsDBCS2(c) 0
emh203	0:6b1e6c9e48ba	375
emh203	0:6b1e6c9e48ba	376	#endif /* _DF1S */
emh203	0:6b1e6c9e48ba	377
emh203	0:6b1e6c9e48ba	378
emh203	0:6b1e6c9e48ba	379	/* Name status flags */
emh203	0:6b1e6c9e48ba	380	#define NS 11 /* Index of name status byte in fn[] */
emh203	0:6b1e6c9e48ba	381	#define NS_LOSS 0x01 /* Out of 8.3 format */
emh203	0:6b1e6c9e48ba	382	#define NS_LFN 0x02 /* Force to create LFN entry */
emh203	0:6b1e6c9e48ba	383	#define NS_LAST 0x04 /* Last segment */
emh203	0:6b1e6c9e48ba	384	#define NS_BODY 0x08 /* Lower case flag (body) */
emh203	0:6b1e6c9e48ba	385	#define NS_EXT 0x10 /* Lower case flag (ext) */
emh203	0:6b1e6c9e48ba	386	#define NS_DOT 0x20 /* Dot entry */
emh203	0:6b1e6c9e48ba	387
emh203	0:6b1e6c9e48ba	388
emh203	0:6b1e6c9e48ba	389	/* FAT sub-type boundaries */
emh203	0:6b1e6c9e48ba	390	/* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */
emh203	0:6b1e6c9e48ba	391	#define MIN_FAT16 4086 /* Minimum number of clusters for FAT16 */
emh203	0:6b1e6c9e48ba	392	#define MIN_FAT32 65526 /* Minimum number of clusters for FAT32 */
emh203	0:6b1e6c9e48ba	393
emh203	0:6b1e6c9e48ba	394
emh203	0:6b1e6c9e48ba	395	/* FatFs refers the members in the FAT structures as byte array instead of
emh203	0:6b1e6c9e48ba	396	/ structure member because the structure is not binary compatible between
emh203	0:6b1e6c9e48ba	397	/ different platforms */
emh203	0:6b1e6c9e48ba	398
emh203	0:6b1e6c9e48ba	399	#define BS_jmpBoot 0 /* Jump instruction (3) */
emh203	0:6b1e6c9e48ba	400	#define BS_OEMName 3 /* OEM name (8) */
emh203	0:6b1e6c9e48ba	401	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
emh203	0:6b1e6c9e48ba	402	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
emh203	0:6b1e6c9e48ba	403	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
emh203	0:6b1e6c9e48ba	404	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
emh203	0:6b1e6c9e48ba	405	#define BPB_RootEntCnt 17 /* Number of root dir entries for FAT12/16 (2) */
emh203	0:6b1e6c9e48ba	406	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
emh203	0:6b1e6c9e48ba	407	#define BPB_Media 21 /* Media descriptor (1) */
emh203	0:6b1e6c9e48ba	408	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
emh203	0:6b1e6c9e48ba	409	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
emh203	0:6b1e6c9e48ba	410	#define BPB_NumHeads 26 /* Number of heads (2) */
emh203	0:6b1e6c9e48ba	411	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
emh203	0:6b1e6c9e48ba	412	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
emh203	0:6b1e6c9e48ba	413	#define BS_DrvNum 36 /* Physical drive number (2) */
emh203	0:6b1e6c9e48ba	414	#define BS_BootSig 38 /* Extended boot signature (1) */
emh203	0:6b1e6c9e48ba	415	#define BS_VolID 39 /* Volume serial number (4) */
emh203	0:6b1e6c9e48ba	416	#define BS_VolLab 43 /* Volume label (8) */
emh203	0:6b1e6c9e48ba	417	#define BS_FilSysType 54 /* File system type (1) */
emh203	0:6b1e6c9e48ba	418	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
emh203	0:6b1e6c9e48ba	419	#define BPB_ExtFlags 40 /* Extended flags (2) */
emh203	0:6b1e6c9e48ba	420	#define BPB_FSVer 42 /* File system version (2) */
emh203	0:6b1e6c9e48ba	421	#define BPB_RootClus 44 /* Root dir first cluster (4) */
emh203	0:6b1e6c9e48ba	422	#define BPB_FSInfo 48 /* Offset of FSInfo sector (2) */
emh203	0:6b1e6c9e48ba	423	#define BPB_BkBootSec 50 /* Offset of backup boot sectot (2) */
emh203	0:6b1e6c9e48ba	424	#define BS_DrvNum32 64 /* Physical drive number (2) */
emh203	0:6b1e6c9e48ba	425	#define BS_BootSig32 66 /* Extended boot signature (1) */
emh203	0:6b1e6c9e48ba	426	#define BS_VolID32 67 /* Volume serial number (4) */
emh203	0:6b1e6c9e48ba	427	#define BS_VolLab32 71 /* Volume label (8) */
emh203	0:6b1e6c9e48ba	428	#define BS_FilSysType32 82 /* File system type (1) */
emh203	0:6b1e6c9e48ba	429	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
emh203	0:6b1e6c9e48ba	430	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
emh203	0:6b1e6c9e48ba	431	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
emh203	0:6b1e6c9e48ba	432	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
emh203	0:6b1e6c9e48ba	433	#define MBR_Table 446 /* MBR: Partition table offset (2) */
emh203	0:6b1e6c9e48ba	434	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
emh203	0:6b1e6c9e48ba	435	#define BS_55AA 510 /* Boot sector signature (2) */
emh203	0:6b1e6c9e48ba	436
emh203	0:6b1e6c9e48ba	437	#define DIR_Name 0 /* Short file name (11) */
emh203	0:6b1e6c9e48ba	438	#define DIR_Attr 11 /* Attribute (1) */
emh203	0:6b1e6c9e48ba	439	#define DIR_NTres 12 /* NT flag (1) */
emh203	0:6b1e6c9e48ba	440	#define DIR_CrtTime 14 /* Created time (2) */
emh203	0:6b1e6c9e48ba	441	#define DIR_CrtDate 16 /* Created date (2) */
emh203	0:6b1e6c9e48ba	442	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
emh203	0:6b1e6c9e48ba	443	#define DIR_WrtTime 22 /* Modified time (2) */
emh203	0:6b1e6c9e48ba	444	#define DIR_WrtDate 24 /* Modified date (2) */
emh203	0:6b1e6c9e48ba	445	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
emh203	0:6b1e6c9e48ba	446	#define DIR_FileSize 28 /* File size (4) */
emh203	0:6b1e6c9e48ba	447	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
emh203	0:6b1e6c9e48ba	448	#define LDIR_Attr 11 /* LFN attribute (1) */
emh203	0:6b1e6c9e48ba	449	#define LDIR_Type 12 /* LFN type (1) */
emh203	0:6b1e6c9e48ba	450	#define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
emh203	0:6b1e6c9e48ba	451	#define LDIR_FstClusLO 26 /* Filled by zero (0) */
emh203	0:6b1e6c9e48ba	452	#define SZ_DIR 32 /* Size of a directory entry */
emh203	0:6b1e6c9e48ba	453	#define LLE 0x40 /* Last long entry flag in LDIR_Ord */
emh203	0:6b1e6c9e48ba	454	#define DDE 0xE5 /* Deleted directory enrty mark in DIR_Name[0] */
emh203	0:6b1e6c9e48ba	455	#define NDDE 0x05 /* Replacement of a character collides with DDE */
emh203	0:6b1e6c9e48ba	456
emh203	0:6b1e6c9e48ba	457
emh203	0:6b1e6c9e48ba	458	/------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	459	/* Module private work area */
emh203	0:6b1e6c9e48ba	460	/------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	461	/* Note that uninitialized variables with static duration are
emh203	0:6b1e6c9e48ba	462	/ zeroed/nulled at start-up. If not, the compiler or start-up
emh203	0:6b1e6c9e48ba	463	/ routine is out of ANSI-C standard.
emh203	0:6b1e6c9e48ba	464	*/
emh203	0:6b1e6c9e48ba	465
emh203	0:6b1e6c9e48ba	466	#if _VOLUMES
emh203	0:6b1e6c9e48ba	467	static
emh203	0:6b1e6c9e48ba	468	FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
emh203	0:6b1e6c9e48ba	469	#else
emh203	0:6b1e6c9e48ba	470	#error Number of volumes must not be 0.
emh203	0:6b1e6c9e48ba	471	#endif
emh203	0:6b1e6c9e48ba	472
emh203	0:6b1e6c9e48ba	473	static
emh203	0:6b1e6c9e48ba	474	WORD Fsid; /* File system mount ID */
emh203	0:6b1e6c9e48ba	475
emh203	0:6b1e6c9e48ba	476	#if _FS_RPATH
emh203	0:6b1e6c9e48ba	477	static
emh203	0:6b1e6c9e48ba	478	BYTE CurrVol; /* Current drive */
emh203	0:6b1e6c9e48ba	479	#endif
emh203	0:6b1e6c9e48ba	480
emh203	0:6b1e6c9e48ba	481	#if _FS_SHARE
emh203	0:6b1e6c9e48ba	482	static
emh203	0:6b1e6c9e48ba	483	FILESEM Files[_FS_SHARE]; /* File lock semaphores */
emh203	0:6b1e6c9e48ba	484	#endif
emh203	0:6b1e6c9e48ba	485
emh203	0:6b1e6c9e48ba	486	#if _USE_LFN == 0 /* No LFN feature */
emh203	0:6b1e6c9e48ba	487	#define DEF_NAMEBUF BYTE sfn[12]
emh203	0:6b1e6c9e48ba	488	#define INIT_BUF(dobj) (dobj).fn = sfn
emh203	0:6b1e6c9e48ba	489	#define FREE_BUF()
emh203	0:6b1e6c9e48ba	490
emh203	0:6b1e6c9e48ba	491	#elif _USE_LFN == 1 /* LFN feature with static working buffer */
emh203	0:6b1e6c9e48ba	492	static WCHAR LfnBuf[_MAX_LFN+1];
emh203	0:6b1e6c9e48ba	493	#define DEF_NAMEBUF BYTE sfn[12]
emh203	0:6b1e6c9e48ba	494	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
emh203	0:6b1e6c9e48ba	495	#define FREE_BUF()
emh203	0:6b1e6c9e48ba	496
emh203	0:6b1e6c9e48ba	497	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
emh203	0:6b1e6c9e48ba	498	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
emh203	0:6b1e6c9e48ba	499	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
emh203	0:6b1e6c9e48ba	500	#define FREE_BUF()
emh203	0:6b1e6c9e48ba	501
emh203	0:6b1e6c9e48ba	502	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
emh203	0:6b1e6c9e48ba	503	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
emh203	0:6b1e6c9e48ba	504	#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
emh203	0:6b1e6c9e48ba	505	if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
emh203	0:6b1e6c9e48ba	506	(dobj).lfn = lfn; (dobj).fn = sfn; }
emh203	0:6b1e6c9e48ba	507	#define FREE_BUF() ff_memfree(lfn)
emh203	0:6b1e6c9e48ba	508
emh203	0:6b1e6c9e48ba	509	#else
emh203	0:6b1e6c9e48ba	510	#error Wrong LFN configuration.
emh203	0:6b1e6c9e48ba	511	#endif
emh203	0:6b1e6c9e48ba	512
emh203	0:6b1e6c9e48ba	513
emh203	0:6b1e6c9e48ba	514
emh203	0:6b1e6c9e48ba	515
emh203	0:6b1e6c9e48ba	516	/*--------------------------------------------------------------------------
emh203	0:6b1e6c9e48ba	517
emh203	0:6b1e6c9e48ba	518	Module Private Functions
emh203	0:6b1e6c9e48ba	519
emh203	0:6b1e6c9e48ba	520	---------------------------------------------------------------------------*/
emh203	0:6b1e6c9e48ba	521
emh203	0:6b1e6c9e48ba	522
emh203	0:6b1e6c9e48ba	523	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	524	/* String functions */
emh203	0:6b1e6c9e48ba	525	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	526
emh203	0:6b1e6c9e48ba	527	/* Copy memory to memory */
emh203	0:6b1e6c9e48ba	528	static
emh203	0:6b1e6c9e48ba	529	void mem_cpy (void* dst, const void* src, UINT cnt) {
emh203	0:6b1e6c9e48ba	530	BYTE d = (BYTE)dst;
emh203	0:6b1e6c9e48ba	531	const BYTE s = (const BYTE)src;
emh203	0:6b1e6c9e48ba	532
emh203	0:6b1e6c9e48ba	533	#if _WORD_ACCESS == 1
emh203	0:6b1e6c9e48ba	534	while (cnt >= sizeof(int)) {
emh203	0:6b1e6c9e48ba	535	(int)d = (int)s;
emh203	0:6b1e6c9e48ba	536	d += sizeof(int); s += sizeof(int);
emh203	0:6b1e6c9e48ba	537	cnt -= sizeof(int);
emh203	0:6b1e6c9e48ba	538	}
emh203	0:6b1e6c9e48ba	539	#endif
emh203	0:6b1e6c9e48ba	540	while (cnt--)
emh203	0:6b1e6c9e48ba	541	d++ = s++;
emh203	0:6b1e6c9e48ba	542	}
emh203	0:6b1e6c9e48ba	543
emh203	0:6b1e6c9e48ba	544	/* Fill memory */
emh203	0:6b1e6c9e48ba	545	static
emh203	0:6b1e6c9e48ba	546	void mem_set (void* dst, int val, UINT cnt) {
emh203	0:6b1e6c9e48ba	547	BYTE d = (BYTE)dst;
emh203	0:6b1e6c9e48ba	548
emh203	0:6b1e6c9e48ba	549	while (cnt--)
emh203	0:6b1e6c9e48ba	550	*d++ = (BYTE)val;
emh203	0:6b1e6c9e48ba	551	}
emh203	0:6b1e6c9e48ba	552
emh203	0:6b1e6c9e48ba	553	/* Compare memory to memory */
emh203	0:6b1e6c9e48ba	554	static
emh203	0:6b1e6c9e48ba	555	int mem_cmp (const void* dst, const void* src, UINT cnt) {
emh203	0:6b1e6c9e48ba	556	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
emh203	0:6b1e6c9e48ba	557	int r = 0;
emh203	0:6b1e6c9e48ba	558
emh203	0:6b1e6c9e48ba	559	while (cnt-- && (r = d++ - s++) == 0) ;
emh203	0:6b1e6c9e48ba	560	return r;
emh203	0:6b1e6c9e48ba	561	}
emh203	0:6b1e6c9e48ba	562
emh203	0:6b1e6c9e48ba	563	/* Check if chr is contained in the string */
emh203	0:6b1e6c9e48ba	564	static
emh203	0:6b1e6c9e48ba	565	int chk_chr (const char* str, int chr) {
emh203	0:6b1e6c9e48ba	566	while (str && str != chr) str++;
emh203	0:6b1e6c9e48ba	567	return *str;
emh203	0:6b1e6c9e48ba	568	}
emh203	0:6b1e6c9e48ba	569
emh203	0:6b1e6c9e48ba	570
emh203	0:6b1e6c9e48ba	571
emh203	0:6b1e6c9e48ba	572	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	573	/* Request/Release grant to access the volume */
emh203	0:6b1e6c9e48ba	574	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	575	#if _FS_REENTRANT
emh203	0:6b1e6c9e48ba	576
emh203	0:6b1e6c9e48ba	577	static
emh203	0:6b1e6c9e48ba	578	int lock_fs (
emh203	0:6b1e6c9e48ba	579	FATFS fs / File system object */
emh203	0:6b1e6c9e48ba	580	)
emh203	0:6b1e6c9e48ba	581	{
emh203	0:6b1e6c9e48ba	582	return ff_req_grant(fs->sobj);
emh203	0:6b1e6c9e48ba	583	}
emh203	0:6b1e6c9e48ba	584
emh203	0:6b1e6c9e48ba	585
emh203	0:6b1e6c9e48ba	586	static
emh203	0:6b1e6c9e48ba	587	void unlock_fs (
emh203	0:6b1e6c9e48ba	588	FATFS fs, / File system object */
emh203	0:6b1e6c9e48ba	589	FRESULT res /* Result code to be returned */
emh203	0:6b1e6c9e48ba	590	)
emh203	0:6b1e6c9e48ba	591	{
emh203	0:6b1e6c9e48ba	592	if (res != FR_NOT_ENABLED &&
emh203	0:6b1e6c9e48ba	593	res != FR_INVALID_DRIVE &&
emh203	0:6b1e6c9e48ba	594	res != FR_INVALID_OBJECT &&
emh203	0:6b1e6c9e48ba	595	res != FR_TIMEOUT) {
emh203	0:6b1e6c9e48ba	596	ff_rel_grant(fs->sobj);
emh203	0:6b1e6c9e48ba	597	}
emh203	0:6b1e6c9e48ba	598	}
emh203	0:6b1e6c9e48ba	599	#endif
emh203	0:6b1e6c9e48ba	600
emh203	0:6b1e6c9e48ba	601
emh203	0:6b1e6c9e48ba	602
emh203	0:6b1e6c9e48ba	603	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	604	/* File shareing control functions */
emh203	0:6b1e6c9e48ba	605	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	606	#if _FS_SHARE
emh203	0:6b1e6c9e48ba	607
emh203	0:6b1e6c9e48ba	608	static
emh203	0:6b1e6c9e48ba	609	FRESULT chk_lock ( /* Check if the file can be accessed */
emh203	0:6b1e6c9e48ba	610	DIR* dj, /* Directory object pointing the file to be checked */
emh203	0:6b1e6c9e48ba	611	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
emh203	0:6b1e6c9e48ba	612	)
emh203	0:6b1e6c9e48ba	613	{
emh203	0:6b1e6c9e48ba	614	UINT i, be;
emh203	0:6b1e6c9e48ba	615
emh203	0:6b1e6c9e48ba	616	/* Search file semaphore table */
emh203	0:6b1e6c9e48ba	617	for (i = be = 0; i < _FS_SHARE; i++) {
emh203	0:6b1e6c9e48ba	618	if (Files[i].fs) { /* Existing entry */
emh203	0:6b1e6c9e48ba	619	if (Files[i].fs == dj->fs && /* Check if the file matched with an open file */
emh203	0:6b1e6c9e48ba	620	Files[i].clu == dj->sclust &&
emh203	0:6b1e6c9e48ba	621	Files[i].idx == dj->index) break;
emh203	0:6b1e6c9e48ba	622	} else { /* Blank entry */
emh203	0:6b1e6c9e48ba	623	be++;
emh203	0:6b1e6c9e48ba	624	}
emh203	0:6b1e6c9e48ba	625	}
emh203	0:6b1e6c9e48ba	626	if (i == _FS_SHARE) /* The file is not opened */
emh203	0:6b1e6c9e48ba	627	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new file? */
emh203	0:6b1e6c9e48ba	628
emh203	0:6b1e6c9e48ba	629	/* The file has been opened. Reject any open against writing file and all write mode open */
emh203	0:6b1e6c9e48ba	630	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
emh203	0:6b1e6c9e48ba	631	}
emh203	0:6b1e6c9e48ba	632
emh203	0:6b1e6c9e48ba	633
emh203	0:6b1e6c9e48ba	634	static
emh203	0:6b1e6c9e48ba	635	int enq_lock (void) /* Check if an entry is available for a new file */
emh203	0:6b1e6c9e48ba	636	{
emh203	0:6b1e6c9e48ba	637	UINT i;
emh203	0:6b1e6c9e48ba	638
emh203	0:6b1e6c9e48ba	639	for (i = 0; i < _FS_SHARE && Files[i].fs; i++) ;
emh203	0:6b1e6c9e48ba	640	return (i == _FS_SHARE) ? 0 : 1;
emh203	0:6b1e6c9e48ba	641	}
emh203	0:6b1e6c9e48ba	642
emh203	0:6b1e6c9e48ba	643
emh203	0:6b1e6c9e48ba	644	static
emh203	0:6b1e6c9e48ba	645	UINT inc_lock ( /* Increment file open counter and returns its index (0:int error) */
emh203	0:6b1e6c9e48ba	646	DIR* dj, /* Directory object pointing the file to register or increment */
emh203	0:6b1e6c9e48ba	647	int acc /* Desired access mode (0:Read, !0:Write) */
emh203	0:6b1e6c9e48ba	648	)
emh203	0:6b1e6c9e48ba	649	{
emh203	0:6b1e6c9e48ba	650	UINT i;
emh203	0:6b1e6c9e48ba	651
emh203	0:6b1e6c9e48ba	652
emh203	0:6b1e6c9e48ba	653	for (i = 0; i < _FS_SHARE; i++) { /* Find the file */
emh203	0:6b1e6c9e48ba	654	if (Files[i].fs == dj->fs &&
emh203	0:6b1e6c9e48ba	655	Files[i].clu == dj->sclust &&
emh203	0:6b1e6c9e48ba	656	Files[i].idx == dj->index) break;
emh203	0:6b1e6c9e48ba	657	}
emh203	0:6b1e6c9e48ba	658
emh203	0:6b1e6c9e48ba	659	if (i == _FS_SHARE) { /* Not opened. Register it as new. */
emh203	0:6b1e6c9e48ba	660	for (i = 0; i < _FS_SHARE && Files[i].fs; i++) ;
emh203	0:6b1e6c9e48ba	661	if (i == _FS_SHARE) return 0; /* No space to register (int err) */
emh203	0:6b1e6c9e48ba	662	Files[i].fs = dj->fs;
emh203	0:6b1e6c9e48ba	663	Files[i].clu = dj->sclust;
emh203	0:6b1e6c9e48ba	664	Files[i].idx = dj->index;
emh203	0:6b1e6c9e48ba	665	Files[i].ctr = 0;
emh203	0:6b1e6c9e48ba	666	}
emh203	0:6b1e6c9e48ba	667
emh203	0:6b1e6c9e48ba	668	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
emh203	0:6b1e6c9e48ba	669
emh203	0:6b1e6c9e48ba	670	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
emh203	0:6b1e6c9e48ba	671
emh203	0:6b1e6c9e48ba	672	return i + 1;
emh203	0:6b1e6c9e48ba	673	}
emh203	0:6b1e6c9e48ba	674
emh203	0:6b1e6c9e48ba	675
emh203	0:6b1e6c9e48ba	676	static
emh203	0:6b1e6c9e48ba	677	FRESULT dec_lock ( /* Decrement file open counter */
emh203	0:6b1e6c9e48ba	678	UINT i /* Semaphore index */
emh203	0:6b1e6c9e48ba	679	)
emh203	0:6b1e6c9e48ba	680	{
emh203	0:6b1e6c9e48ba	681	WORD n;
emh203	0:6b1e6c9e48ba	682	FRESULT res;
emh203	0:6b1e6c9e48ba	683
emh203	0:6b1e6c9e48ba	684
emh203	0:6b1e6c9e48ba	685	if (--i < _FS_SHARE) {
emh203	0:6b1e6c9e48ba	686	n = Files[i].ctr;
emh203	0:6b1e6c9e48ba	687	if (n == 0x100) n = 0;
emh203	0:6b1e6c9e48ba	688	if (n) n--;
emh203	0:6b1e6c9e48ba	689	Files[i].ctr = n;
emh203	0:6b1e6c9e48ba	690	if (!n) Files[i].fs = 0;
emh203	0:6b1e6c9e48ba	691	res = FR_OK;
emh203	0:6b1e6c9e48ba	692	} else {
emh203	0:6b1e6c9e48ba	693	res = FR_INT_ERR;
emh203	0:6b1e6c9e48ba	694	}
emh203	0:6b1e6c9e48ba	695	return res;
emh203	0:6b1e6c9e48ba	696	}
emh203	0:6b1e6c9e48ba	697
emh203	0:6b1e6c9e48ba	698
emh203	0:6b1e6c9e48ba	699	static
emh203	0:6b1e6c9e48ba	700	void clear_lock ( /* Clear lock entries of the volume */
emh203	0:6b1e6c9e48ba	701	FATFS *fs
emh203	0:6b1e6c9e48ba	702	)
emh203	0:6b1e6c9e48ba	703	{
emh203	0:6b1e6c9e48ba	704	UINT i;
emh203	0:6b1e6c9e48ba	705
emh203	0:6b1e6c9e48ba	706	for (i = 0; i < _FS_SHARE; i++) {
emh203	0:6b1e6c9e48ba	707	if (Files[i].fs == fs) Files[i].fs = 0;
emh203	0:6b1e6c9e48ba	708	}
emh203	0:6b1e6c9e48ba	709	}
emh203	0:6b1e6c9e48ba	710	#endif
emh203	0:6b1e6c9e48ba	711
emh203	0:6b1e6c9e48ba	712
emh203	0:6b1e6c9e48ba	713
emh203	0:6b1e6c9e48ba	714	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	715	/* Change window offset */
emh203	0:6b1e6c9e48ba	716	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	717
emh203	0:6b1e6c9e48ba	718	static
emh203	0:6b1e6c9e48ba	719	FRESULT move_window (
emh203	0:6b1e6c9e48ba	720	FATFS fs, / File system object */
emh203	0:6b1e6c9e48ba	721	DWORD sector /* Sector number to make appearance in the fs->win[] */
emh203	0:6b1e6c9e48ba	722	) /* Move to zero only writes back dirty window */
emh203	0:6b1e6c9e48ba	723	{
emh203	0:6b1e6c9e48ba	724	DWORD wsect;
emh203	0:6b1e6c9e48ba	725
emh203	0:6b1e6c9e48ba	726
emh203	0:6b1e6c9e48ba	727	wsect = fs->winsect;
emh203	0:6b1e6c9e48ba	728	if (wsect != sector) { /* Changed current window */
emh203	0:6b1e6c9e48ba	729	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	730	if (fs->wflag) { /* Write back dirty window if needed */
emh203	0:6b1e6c9e48ba	731	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK)
emh203	0:6b1e6c9e48ba	732	return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	733	fs->wflag = 0;
emh203	0:6b1e6c9e48ba	734	if (wsect < (fs->fatbase + fs->fsize)) { /* In FAT area */
emh203	0:6b1e6c9e48ba	735	BYTE nf;
emh203	0:6b1e6c9e48ba	736	for (nf = fs->n_fats; nf > 1; nf--) { /* Reflect the change to all FAT copies */
emh203	0:6b1e6c9e48ba	737	wsect += fs->fsize;
emh203	0:6b1e6c9e48ba	738	disk_write(fs->drv, fs->win, wsect, 1);
emh203	0:6b1e6c9e48ba	739	}
emh203	0:6b1e6c9e48ba	740	}
emh203	0:6b1e6c9e48ba	741	}
emh203	0:6b1e6c9e48ba	742	#endif
emh203	0:6b1e6c9e48ba	743	if (sector) {
emh203	0:6b1e6c9e48ba	744	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK)
emh203	0:6b1e6c9e48ba	745	return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	746	fs->winsect = sector;
emh203	0:6b1e6c9e48ba	747	}
emh203	0:6b1e6c9e48ba	748	}
emh203	0:6b1e6c9e48ba	749
emh203	0:6b1e6c9e48ba	750	return FR_OK;
emh203	0:6b1e6c9e48ba	751	}
emh203	0:6b1e6c9e48ba	752
emh203	0:6b1e6c9e48ba	753
emh203	0:6b1e6c9e48ba	754
emh203	0:6b1e6c9e48ba	755
emh203	0:6b1e6c9e48ba	756	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	757	/* Clean-up cached data */
emh203	0:6b1e6c9e48ba	758	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	759	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	760	static
emh203	0:6b1e6c9e48ba	761	FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */
emh203	0:6b1e6c9e48ba	762	FATFS fs / File system object */
emh203	0:6b1e6c9e48ba	763	)
emh203	0:6b1e6c9e48ba	764	{
emh203	0:6b1e6c9e48ba	765	FRESULT res;
emh203	0:6b1e6c9e48ba	766
emh203	0:6b1e6c9e48ba	767
emh203	0:6b1e6c9e48ba	768	res = move_window(fs, 0);
emh203	0:6b1e6c9e48ba	769	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	770	/* Update FSInfo sector if needed */
emh203	0:6b1e6c9e48ba	771	if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
emh203	0:6b1e6c9e48ba	772	fs->winsect = 0;
emh203	0:6b1e6c9e48ba	773	/* Create FSInfo structure */
emh203	0:6b1e6c9e48ba	774	mem_set(fs->win, 0, 512);
emh203	0:6b1e6c9e48ba	775	ST_WORD(fs->win+BS_55AA, 0xAA55);
emh203	0:6b1e6c9e48ba	776	ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
emh203	0:6b1e6c9e48ba	777	ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
emh203	0:6b1e6c9e48ba	778	ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
emh203	0:6b1e6c9e48ba	779	ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
emh203	0:6b1e6c9e48ba	780	/* Write it into the FSInfo sector */
emh203	0:6b1e6c9e48ba	781	disk_write(fs->drv, fs->win, fs->fsi_sector, 1);
emh203	0:6b1e6c9e48ba	782	fs->fsi_flag = 0;
emh203	0:6b1e6c9e48ba	783	}
emh203	0:6b1e6c9e48ba	784	/* Make sure that no pending write process in the physical drive */
emh203	0:6b1e6c9e48ba	785	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
emh203	0:6b1e6c9e48ba	786	res = FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	787	}
emh203	0:6b1e6c9e48ba	788
emh203	0:6b1e6c9e48ba	789	return res;
emh203	0:6b1e6c9e48ba	790	}
emh203	0:6b1e6c9e48ba	791	#endif
emh203	0:6b1e6c9e48ba	792
emh203	0:6b1e6c9e48ba	793
emh203	0:6b1e6c9e48ba	794
emh203	0:6b1e6c9e48ba	795
emh203	0:6b1e6c9e48ba	796	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	797	/* Get sector# from cluster# */
emh203	0:6b1e6c9e48ba	798	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	799
emh203	0:6b1e6c9e48ba	800
emh203	0:6b1e6c9e48ba	801	DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
emh203	0:6b1e6c9e48ba	802	FATFS fs, / File system object */
emh203	0:6b1e6c9e48ba	803	DWORD clst /* Cluster# to be converted */
emh203	0:6b1e6c9e48ba	804	)
emh203	0:6b1e6c9e48ba	805	{
emh203	0:6b1e6c9e48ba	806	clst -= 2;
emh203	0:6b1e6c9e48ba	807	if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
emh203	0:6b1e6c9e48ba	808	return clst * fs->csize + fs->database;
emh203	0:6b1e6c9e48ba	809	}
emh203	0:6b1e6c9e48ba	810
emh203	0:6b1e6c9e48ba	811
emh203	0:6b1e6c9e48ba	812
emh203	0:6b1e6c9e48ba	813
emh203	0:6b1e6c9e48ba	814	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	815	/* FAT access - Read value of a FAT entry */
emh203	0:6b1e6c9e48ba	816	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	817
emh203	0:6b1e6c9e48ba	818
emh203	0:6b1e6c9e48ba	819	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
emh203	0:6b1e6c9e48ba	820	FATFS fs, / File system object */
emh203	0:6b1e6c9e48ba	821	DWORD clst /* Cluster# to get the link information */
emh203	0:6b1e6c9e48ba	822	)
emh203	0:6b1e6c9e48ba	823	{
emh203	0:6b1e6c9e48ba	824	UINT wc, bc;
emh203	0:6b1e6c9e48ba	825	BYTE *p;
emh203	0:6b1e6c9e48ba	826
emh203	0:6b1e6c9e48ba	827
emh203	0:6b1e6c9e48ba	828	if (clst < 2 \|\| clst >= fs->n_fatent) /* Chack range */
emh203	0:6b1e6c9e48ba	829	return 1;
emh203	0:6b1e6c9e48ba	830
emh203	0:6b1e6c9e48ba	831	switch (fs->fs_type) {
emh203	0:6b1e6c9e48ba	832	case FS_FAT12 :
emh203	0:6b1e6c9e48ba	833	bc = (UINT)clst; bc += bc / 2;
emh203	0:6b1e6c9e48ba	834	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
emh203	0:6b1e6c9e48ba	835	wc = fs->win[bc % SS(fs)]; bc++;
emh203	0:6b1e6c9e48ba	836	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
emh203	0:6b1e6c9e48ba	837	wc \|= fs->win[bc % SS(fs)] << 8;
emh203	0:6b1e6c9e48ba	838	return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
emh203	0:6b1e6c9e48ba	839
emh203	0:6b1e6c9e48ba	840	case FS_FAT16 :
emh203	0:6b1e6c9e48ba	841	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
emh203	0:6b1e6c9e48ba	842	p = &fs->win[clst * 2 % SS(fs)];
emh203	0:6b1e6c9e48ba	843	return LD_WORD(p);
emh203	0:6b1e6c9e48ba	844
emh203	0:6b1e6c9e48ba	845	case FS_FAT32 :
emh203	0:6b1e6c9e48ba	846	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
emh203	0:6b1e6c9e48ba	847	p = &fs->win[clst * 4 % SS(fs)];
emh203	0:6b1e6c9e48ba	848	return LD_DWORD(p) & 0x0FFFFFFF;
emh203	0:6b1e6c9e48ba	849	}
emh203	0:6b1e6c9e48ba	850
emh203	0:6b1e6c9e48ba	851	return 0xFFFFFFFF; /* An error occurred at the disk I/O layer */
emh203	0:6b1e6c9e48ba	852	}
emh203	0:6b1e6c9e48ba	853
emh203	0:6b1e6c9e48ba	854
emh203	0:6b1e6c9e48ba	855
emh203	0:6b1e6c9e48ba	856
emh203	0:6b1e6c9e48ba	857	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	858	/* FAT access - Change value of a FAT entry */
emh203	0:6b1e6c9e48ba	859	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	860	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	861
emh203	0:6b1e6c9e48ba	862	FRESULT put_fat (
emh203	0:6b1e6c9e48ba	863	FATFS fs, / File system object */
emh203	0:6b1e6c9e48ba	864	DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
emh203	0:6b1e6c9e48ba	865	DWORD val /* New value to mark the cluster */
emh203	0:6b1e6c9e48ba	866	)
emh203	0:6b1e6c9e48ba	867	{
emh203	0:6b1e6c9e48ba	868	UINT bc;
emh203	0:6b1e6c9e48ba	869	BYTE *p;
emh203	0:6b1e6c9e48ba	870	FRESULT res;
emh203	0:6b1e6c9e48ba	871
emh203	0:6b1e6c9e48ba	872
emh203	0:6b1e6c9e48ba	873	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
emh203	0:6b1e6c9e48ba	874	res = FR_INT_ERR;
emh203	0:6b1e6c9e48ba	875
emh203	0:6b1e6c9e48ba	876	} else {
emh203	0:6b1e6c9e48ba	877	switch (fs->fs_type) {
emh203	0:6b1e6c9e48ba	878	case FS_FAT12 :
emh203	0:6b1e6c9e48ba	879	bc = clst; bc += bc / 2;
emh203	0:6b1e6c9e48ba	880	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
emh203	0:6b1e6c9e48ba	881	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	882	p = &fs->win[bc % SS(fs)];
emh203	0:6b1e6c9e48ba	883	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
emh203	0:6b1e6c9e48ba	884	bc++;
emh203	0:6b1e6c9e48ba	885	fs->wflag = 1;
emh203	0:6b1e6c9e48ba	886	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
emh203	0:6b1e6c9e48ba	887	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	888	p = &fs->win[bc % SS(fs)];
emh203	0:6b1e6c9e48ba	889	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
emh203	0:6b1e6c9e48ba	890	break;
emh203	0:6b1e6c9e48ba	891
emh203	0:6b1e6c9e48ba	892	case FS_FAT16 :
emh203	0:6b1e6c9e48ba	893	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
emh203	0:6b1e6c9e48ba	894	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	895	p = &fs->win[clst * 2 % SS(fs)];
emh203	0:6b1e6c9e48ba	896	ST_WORD(p, (WORD)val);
emh203	0:6b1e6c9e48ba	897	break;
emh203	0:6b1e6c9e48ba	898
emh203	0:6b1e6c9e48ba	899	case FS_FAT32 :
emh203	0:6b1e6c9e48ba	900	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
emh203	0:6b1e6c9e48ba	901	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	902	p = &fs->win[clst * 4 % SS(fs)];
emh203	0:6b1e6c9e48ba	903	val \|= LD_DWORD(p) & 0xF0000000;
emh203	0:6b1e6c9e48ba	904	ST_DWORD(p, val);
emh203	0:6b1e6c9e48ba	905	break;
emh203	0:6b1e6c9e48ba	906
emh203	0:6b1e6c9e48ba	907	default :
emh203	0:6b1e6c9e48ba	908	res = FR_INT_ERR;
emh203	0:6b1e6c9e48ba	909	}
emh203	0:6b1e6c9e48ba	910	fs->wflag = 1;
emh203	0:6b1e6c9e48ba	911	}
emh203	0:6b1e6c9e48ba	912
emh203	0:6b1e6c9e48ba	913	return res;
emh203	0:6b1e6c9e48ba	914	}
emh203	0:6b1e6c9e48ba	915	#endif /* !_FS_READONLY */
emh203	0:6b1e6c9e48ba	916
emh203	0:6b1e6c9e48ba	917
emh203	0:6b1e6c9e48ba	918
emh203	0:6b1e6c9e48ba	919
emh203	0:6b1e6c9e48ba	920	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	921	/* FAT handling - Remove a cluster chain */
emh203	0:6b1e6c9e48ba	922	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	923	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	924	static
emh203	0:6b1e6c9e48ba	925	FRESULT remove_chain (
emh203	0:6b1e6c9e48ba	926	FATFS fs, / File system object */
emh203	0:6b1e6c9e48ba	927	DWORD clst /* Cluster# to remove a chain from */
emh203	0:6b1e6c9e48ba	928	)
emh203	0:6b1e6c9e48ba	929	{
emh203	0:6b1e6c9e48ba	930	FRESULT res;
emh203	0:6b1e6c9e48ba	931	DWORD nxt;
emh203	0:6b1e6c9e48ba	932	#if _USE_ERASE
emh203	0:6b1e6c9e48ba	933	DWORD scl = clst, ecl = clst, resion[2];
emh203	0:6b1e6c9e48ba	934	#endif
emh203	0:6b1e6c9e48ba	935
emh203	0:6b1e6c9e48ba	936	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
emh203	0:6b1e6c9e48ba	937	res = FR_INT_ERR;
emh203	0:6b1e6c9e48ba	938
emh203	0:6b1e6c9e48ba	939	} else {
emh203	0:6b1e6c9e48ba	940	res = FR_OK;
emh203	0:6b1e6c9e48ba	941	while (clst < fs->n_fatent) { /* Not a last link? */
emh203	0:6b1e6c9e48ba	942	nxt = get_fat(fs, clst); /* Get cluster status */
emh203	0:6b1e6c9e48ba	943	if (nxt == 0) break; /* Empty cluster? */
emh203	0:6b1e6c9e48ba	944	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
emh203	0:6b1e6c9e48ba	945	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
emh203	0:6b1e6c9e48ba	946	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
emh203	0:6b1e6c9e48ba	947	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	948	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */
emh203	0:6b1e6c9e48ba	949	fs->free_clust++;
emh203	0:6b1e6c9e48ba	950	fs->fsi_flag = 1;
emh203	0:6b1e6c9e48ba	951	}
emh203	0:6b1e6c9e48ba	952	#if _USE_ERASE
emh203	0:6b1e6c9e48ba	953	if (ecl + 1 == nxt) { /* Next cluster is contiguous */
emh203	0:6b1e6c9e48ba	954	ecl = nxt;
emh203	0:6b1e6c9e48ba	955	} else { /* End of contiguous clusters */
emh203	0:6b1e6c9e48ba	956	resion[0] = clust2sect(fs, scl); /* Start sector */
emh203	0:6b1e6c9e48ba	957	resion[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
emh203	0:6b1e6c9e48ba	958	disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, resion); /* Erase the block */
emh203	0:6b1e6c9e48ba	959	scl = ecl = nxt;
emh203	0:6b1e6c9e48ba	960	}
emh203	0:6b1e6c9e48ba	961	#endif
emh203	0:6b1e6c9e48ba	962	clst = nxt; /* Next cluster */
emh203	0:6b1e6c9e48ba	963	}
emh203	0:6b1e6c9e48ba	964	}
emh203	0:6b1e6c9e48ba	965
emh203	0:6b1e6c9e48ba	966	return res;
emh203	0:6b1e6c9e48ba	967	}
emh203	0:6b1e6c9e48ba	968	#endif
emh203	0:6b1e6c9e48ba	969
emh203	0:6b1e6c9e48ba	970
emh203	0:6b1e6c9e48ba	971
emh203	0:6b1e6c9e48ba	972
emh203	0:6b1e6c9e48ba	973	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	974	/* FAT handling - Stretch or Create a cluster chain */
emh203	0:6b1e6c9e48ba	975	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	976	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	977	static
emh203	0:6b1e6c9e48ba	978	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
emh203	0:6b1e6c9e48ba	979	FATFS fs, / File system object */
emh203	0:6b1e6c9e48ba	980	DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
emh203	0:6b1e6c9e48ba	981	)
emh203	0:6b1e6c9e48ba	982	{
emh203	0:6b1e6c9e48ba	983	DWORD cs, ncl, scl;
emh203	0:6b1e6c9e48ba	984	FRESULT res;
emh203	0:6b1e6c9e48ba	985
emh203	0:6b1e6c9e48ba	986
emh203	0:6b1e6c9e48ba	987	if (clst == 0) { /* Create a new chain */
emh203	0:6b1e6c9e48ba	988	scl = fs->last_clust; /* Get suggested start point */
emh203	0:6b1e6c9e48ba	989	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
emh203	0:6b1e6c9e48ba	990	}
emh203	0:6b1e6c9e48ba	991	else { /* Stretch the current chain */
emh203	0:6b1e6c9e48ba	992	cs = get_fat(fs, clst); /* Check the cluster status */
emh203	0:6b1e6c9e48ba	993	if (cs < 2) return 1; /* It is an invalid cluster */
emh203	0:6b1e6c9e48ba	994	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
emh203	0:6b1e6c9e48ba	995	scl = clst;
emh203	0:6b1e6c9e48ba	996	}
emh203	0:6b1e6c9e48ba	997
emh203	0:6b1e6c9e48ba	998	ncl = scl; /* Start cluster */
emh203	0:6b1e6c9e48ba	999	for (;;) {
emh203	0:6b1e6c9e48ba	1000	ncl++; /* Next cluster */
emh203	0:6b1e6c9e48ba	1001	if (ncl >= fs->n_fatent) { /* Wrap around */
emh203	0:6b1e6c9e48ba	1002	ncl = 2;
emh203	0:6b1e6c9e48ba	1003	if (ncl > scl) return 0; /* No free cluster */
emh203	0:6b1e6c9e48ba	1004	}
emh203	0:6b1e6c9e48ba	1005	cs = get_fat(fs, ncl); /* Get the cluster status */
emh203	0:6b1e6c9e48ba	1006	if (cs == 0) break; /* Found a free cluster */
emh203	0:6b1e6c9e48ba	1007	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
emh203	0:6b1e6c9e48ba	1008	return cs;
emh203	0:6b1e6c9e48ba	1009	if (ncl == scl) return 0; /* No free cluster */
emh203	0:6b1e6c9e48ba	1010	}
emh203	0:6b1e6c9e48ba	1011
emh203	0:6b1e6c9e48ba	1012	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
emh203	0:6b1e6c9e48ba	1013	if (res == FR_OK && clst != 0) {
emh203	0:6b1e6c9e48ba	1014	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
emh203	0:6b1e6c9e48ba	1015	}
emh203	0:6b1e6c9e48ba	1016	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	1017	fs->last_clust = ncl; /* Update FSINFO */
emh203	0:6b1e6c9e48ba	1018	if (fs->free_clust != 0xFFFFFFFF) {
emh203	0:6b1e6c9e48ba	1019	fs->free_clust--;
emh203	0:6b1e6c9e48ba	1020	fs->fsi_flag = 1;
emh203	0:6b1e6c9e48ba	1021	}
emh203	0:6b1e6c9e48ba	1022	} else {
emh203	0:6b1e6c9e48ba	1023	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
emh203	0:6b1e6c9e48ba	1024	}
emh203	0:6b1e6c9e48ba	1025
emh203	0:6b1e6c9e48ba	1026	return ncl; /* Return new cluster number or error code */
emh203	0:6b1e6c9e48ba	1027	}
emh203	0:6b1e6c9e48ba	1028	#endif /* !_FS_READONLY */
emh203	0:6b1e6c9e48ba	1029
emh203	0:6b1e6c9e48ba	1030
emh203	0:6b1e6c9e48ba	1031
emh203	0:6b1e6c9e48ba	1032	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1033	/* FAT handling - Convert offset into cluster with link map table */
emh203	0:6b1e6c9e48ba	1034	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1035
emh203	0:6b1e6c9e48ba	1036	#if _USE_FASTSEEK
emh203	0:6b1e6c9e48ba	1037	static
emh203	0:6b1e6c9e48ba	1038	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
emh203	0:6b1e6c9e48ba	1039	FIL* fp, /* Pointer to the file object */
emh203	0:6b1e6c9e48ba	1040	DWORD ofs /* File offset to be converted to cluster# */
emh203	0:6b1e6c9e48ba	1041	)
emh203	0:6b1e6c9e48ba	1042	{
emh203	0:6b1e6c9e48ba	1043	DWORD cl, ncl, *tbl;
emh203	0:6b1e6c9e48ba	1044
emh203	0:6b1e6c9e48ba	1045
emh203	0:6b1e6c9e48ba	1046	tbl = fp->cltbl + 1; /* Top of CLMT */
emh203	0:6b1e6c9e48ba	1047	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
emh203	0:6b1e6c9e48ba	1048	for (;;) {
emh203	0:6b1e6c9e48ba	1049	ncl = tbl++; / Number of cluters in the fragment */
emh203	0:6b1e6c9e48ba	1050	if (!ncl) return 0; /* End of table? (error) */
emh203	0:6b1e6c9e48ba	1051	if (cl < ncl) break; /* In this fragment? */
emh203	0:6b1e6c9e48ba	1052	cl -= ncl; tbl++; /* Next fragment */
emh203	0:6b1e6c9e48ba	1053	}
emh203	0:6b1e6c9e48ba	1054	return cl + tbl; / Return the cluster number */
emh203	0:6b1e6c9e48ba	1055	}
emh203	0:6b1e6c9e48ba	1056	#endif /* _USE_FASTSEEK */
emh203	0:6b1e6c9e48ba	1057
emh203	0:6b1e6c9e48ba	1058
emh203	0:6b1e6c9e48ba	1059
emh203	0:6b1e6c9e48ba	1060	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1061	/* Directory handling - Set directory index */
emh203	0:6b1e6c9e48ba	1062	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1063
emh203	0:6b1e6c9e48ba	1064	static
emh203	0:6b1e6c9e48ba	1065	FRESULT dir_sdi (
emh203	0:6b1e6c9e48ba	1066	eDIR dj, / Pointer to directory object */
emh203	0:6b1e6c9e48ba	1067	WORD idx /* Directory index number */
emh203	0:6b1e6c9e48ba	1068	)
emh203	0:6b1e6c9e48ba	1069	{
emh203	0:6b1e6c9e48ba	1070	DWORD clst;
emh203	0:6b1e6c9e48ba	1071	WORD ic;
emh203	0:6b1e6c9e48ba	1072
emh203	0:6b1e6c9e48ba	1073
emh203	0:6b1e6c9e48ba	1074	dj->index = idx;
emh203	0:6b1e6c9e48ba	1075	clst = dj->sclust;
emh203	0:6b1e6c9e48ba	1076	if (clst == 1 \|\| clst >= dj->fs->n_fatent) /* Check start cluster range */
emh203	0:6b1e6c9e48ba	1077	return FR_INT_ERR;
emh203	0:6b1e6c9e48ba	1078	if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
emh203	0:6b1e6c9e48ba	1079	clst = dj->fs->dirbase;
emh203	0:6b1e6c9e48ba	1080
emh203	0:6b1e6c9e48ba	1081	if (clst == 0) { /* Static table (root-dir in FAT12/16) */
emh203	0:6b1e6c9e48ba	1082	dj->clust = clst;
emh203	0:6b1e6c9e48ba	1083	if (idx >= dj->fs->n_rootdir) /* Index is out of range */
emh203	0:6b1e6c9e48ba	1084	return FR_INT_ERR;
emh203	0:6b1e6c9e48ba	1085	dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
emh203	0:6b1e6c9e48ba	1086	}
emh203	0:6b1e6c9e48ba	1087	else { /* Dynamic table (sub-dirs or root-dir in FAT32) */
emh203	0:6b1e6c9e48ba	1088	ic = SS(dj->fs) / SZ_DIR * dj->fs->csize; /* Entries per cluster */
emh203	0:6b1e6c9e48ba	1089	while (idx >= ic) { /* Follow cluster chain */
emh203	0:6b1e6c9e48ba	1090	clst = get_fat(dj->fs, clst); /* Get next cluster */
emh203	0:6b1e6c9e48ba	1091	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
emh203	0:6b1e6c9e48ba	1092	if (clst < 2 \|\| clst >= dj->fs->n_fatent) /* Reached to end of table or int error */
emh203	0:6b1e6c9e48ba	1093	return FR_INT_ERR;
emh203	0:6b1e6c9e48ba	1094	idx -= ic;
emh203	0:6b1e6c9e48ba	1095	}
emh203	0:6b1e6c9e48ba	1096	dj->clust = clst;
emh203	0:6b1e6c9e48ba	1097	dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
emh203	0:6b1e6c9e48ba	1098	}
emh203	0:6b1e6c9e48ba	1099
emh203	0:6b1e6c9e48ba	1100	dj->dir = dj->fs->win + (idx % (SS(dj->fs) / SZ_DIR)) * SZ_DIR; /* Ptr to the entry in the sector */
emh203	0:6b1e6c9e48ba	1101
emh203	0:6b1e6c9e48ba	1102	return FR_OK; /* Seek succeeded */
emh203	0:6b1e6c9e48ba	1103	}
emh203	0:6b1e6c9e48ba	1104
emh203	0:6b1e6c9e48ba	1105
emh203	0:6b1e6c9e48ba	1106
emh203	0:6b1e6c9e48ba	1107
emh203	0:6b1e6c9e48ba	1108	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1109	/* Directory handling - Move directory index next */
emh203	0:6b1e6c9e48ba	1110	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1111
emh203	0:6b1e6c9e48ba	1112	static
emh203	0:6b1e6c9e48ba	1113	FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not stretch */
emh203	0:6b1e6c9e48ba	1114	eDIR dj, / Pointer to directory object */
emh203	0:6b1e6c9e48ba	1115	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
emh203	0:6b1e6c9e48ba	1116	)
emh203	0:6b1e6c9e48ba	1117	{
emh203	0:6b1e6c9e48ba	1118	DWORD clst;
emh203	0:6b1e6c9e48ba	1119	WORD i;
emh203	0:6b1e6c9e48ba	1120
emh203	0:6b1e6c9e48ba	1121
emh203	0:6b1e6c9e48ba	1122	stretch = stretch; /* To suppress warning on read-only cfg. */
emh203	0:6b1e6c9e48ba	1123	i = dj->index + 1;
emh203	0:6b1e6c9e48ba	1124	if (!i \|\| !dj->sect) /* Report EOT when index has reached 65535 */
emh203	0:6b1e6c9e48ba	1125	return FR_NO_FILE;
emh203	0:6b1e6c9e48ba	1126
emh203	0:6b1e6c9e48ba	1127	if (!(i % (SS(dj->fs) / SZ_DIR))) { /* Sector changed? */
emh203	0:6b1e6c9e48ba	1128	dj->sect++; /* Next sector */
emh203	0:6b1e6c9e48ba	1129
emh203	0:6b1e6c9e48ba	1130	if (dj->clust == 0) { /* Static table */
emh203	0:6b1e6c9e48ba	1131	if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */
emh203	0:6b1e6c9e48ba	1132	return FR_NO_FILE;
emh203	0:6b1e6c9e48ba	1133	}
emh203	0:6b1e6c9e48ba	1134	else { /* Dynamic table */
emh203	0:6b1e6c9e48ba	1135	if (((i / (SS(dj->fs) / SZ_DIR)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
emh203	0:6b1e6c9e48ba	1136	clst = get_fat(dj->fs, dj->clust); /* Get next cluster */
emh203	0:6b1e6c9e48ba	1137	if (clst <= 1) return FR_INT_ERR;
emh203	0:6b1e6c9e48ba	1138	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	1139	if (clst >= dj->fs->n_fatent) { /* When it reached end of dynamic table */
emh203	0:6b1e6c9e48ba	1140	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	1141	BYTE c;
emh203	0:6b1e6c9e48ba	1142	if (!stretch) return FR_NO_FILE; /* When do not stretch, report EOT */
emh203	0:6b1e6c9e48ba	1143	clst = create_chain(dj->fs, dj->clust); /* Stretch cluster chain */
emh203	0:6b1e6c9e48ba	1144	if (clst == 0) return FR_DENIED; /* No free cluster */
emh203	0:6b1e6c9e48ba	1145	if (clst == 1) return FR_INT_ERR;
emh203	0:6b1e6c9e48ba	1146	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	1147	/* Clean-up stretched table */
emh203	0:6b1e6c9e48ba	1148	if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */
emh203	0:6b1e6c9e48ba	1149	mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */
emh203	0:6b1e6c9e48ba	1150	dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */
emh203	0:6b1e6c9e48ba	1151	for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */
emh203	0:6b1e6c9e48ba	1152	dj->fs->wflag = 1;
emh203	0:6b1e6c9e48ba	1153	if (move_window(dj->fs, 0)) return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	1154	dj->fs->winsect++;
emh203	0:6b1e6c9e48ba	1155	}
emh203	0:6b1e6c9e48ba	1156	dj->fs->winsect -= c; /* Rewind window address */
emh203	0:6b1e6c9e48ba	1157	#else
emh203	0:6b1e6c9e48ba	1158	return FR_NO_FILE; /* Report EOT */
emh203	0:6b1e6c9e48ba	1159	#endif
emh203	0:6b1e6c9e48ba	1160	}
emh203	0:6b1e6c9e48ba	1161	dj->clust = clst; /* Initialize data for new cluster */
emh203	0:6b1e6c9e48ba	1162	dj->sect = clust2sect(dj->fs, clst);
emh203	0:6b1e6c9e48ba	1163	}
emh203	0:6b1e6c9e48ba	1164	}
emh203	0:6b1e6c9e48ba	1165	}
emh203	0:6b1e6c9e48ba	1166
emh203	0:6b1e6c9e48ba	1167	dj->index = i;
emh203	0:6b1e6c9e48ba	1168	dj->dir = dj->fs->win + (i % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;
emh203	0:6b1e6c9e48ba	1169
emh203	0:6b1e6c9e48ba	1170	return FR_OK;
emh203	0:6b1e6c9e48ba	1171	}
emh203	0:6b1e6c9e48ba	1172
emh203	0:6b1e6c9e48ba	1173
emh203	0:6b1e6c9e48ba	1174
emh203	0:6b1e6c9e48ba	1175
emh203	0:6b1e6c9e48ba	1176	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1177	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
emh203	0:6b1e6c9e48ba	1178	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1179	#if _USE_LFN
emh203	0:6b1e6c9e48ba	1180	static
emh203	0:6b1e6c9e48ba	1181	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	0:6b1e6c9e48ba	1182
emh203	0:6b1e6c9e48ba	1183
emh203	0:6b1e6c9e48ba	1184	static
emh203	0:6b1e6c9e48ba	1185	int cmp_lfn ( /* 1:Matched, 0:Not matched */
emh203	0:6b1e6c9e48ba	1186	WCHAR lfnbuf, / Pointer to the LFN to be compared */
emh203	0:6b1e6c9e48ba	1187	BYTE dir / Pointer to the directory entry containing a part of LFN */
emh203	0:6b1e6c9e48ba	1188	)
emh203	0:6b1e6c9e48ba	1189	{
emh203	0:6b1e6c9e48ba	1190	UINT i, s;
emh203	0:6b1e6c9e48ba	1191	WCHAR wc, uc;
emh203	0:6b1e6c9e48ba	1192
emh203	0:6b1e6c9e48ba	1193
emh203	0:6b1e6c9e48ba	1194	i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
emh203	0:6b1e6c9e48ba	1195	s = 0; wc = 1;
emh203	0:6b1e6c9e48ba	1196	do {
emh203	0:6b1e6c9e48ba	1197	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
emh203	0:6b1e6c9e48ba	1198	if (wc) { /* Last char has not been processed */
emh203	0:6b1e6c9e48ba	1199	wc = ff_wtoupper(uc); /* Convert it to upper case */
emh203	0:6b1e6c9e48ba	1200	if (i >= _MAX_LFN \|\| wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
emh203	0:6b1e6c9e48ba	1201	return 0; /* Not matched */
emh203	0:6b1e6c9e48ba	1202	} else {
emh203	0:6b1e6c9e48ba	1203	if (uc != 0xFFFF) return 0; /* Check filler */
emh203	0:6b1e6c9e48ba	1204	}
emh203	0:6b1e6c9e48ba	1205	} while (++s < 13); /* Repeat until all chars in the entry are checked */
emh203	0:6b1e6c9e48ba	1206
emh203	0:6b1e6c9e48ba	1207	if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) /* Last segment matched but different length */
emh203	0:6b1e6c9e48ba	1208	return 0;
emh203	0:6b1e6c9e48ba	1209
emh203	0:6b1e6c9e48ba	1210	return 1; /* The part of LFN matched */
emh203	0:6b1e6c9e48ba	1211	}
emh203	0:6b1e6c9e48ba	1212
emh203	0:6b1e6c9e48ba	1213
emh203	0:6b1e6c9e48ba	1214
emh203	0:6b1e6c9e48ba	1215	static
emh203	0:6b1e6c9e48ba	1216	int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
emh203	0:6b1e6c9e48ba	1217	WCHAR lfnbuf, / Pointer to the Unicode-LFN buffer */
emh203	0:6b1e6c9e48ba	1218	BYTE dir / Pointer to the directory entry */
emh203	0:6b1e6c9e48ba	1219	)
emh203	0:6b1e6c9e48ba	1220	{
emh203	0:6b1e6c9e48ba	1221	UINT i, s;
emh203	0:6b1e6c9e48ba	1222	WCHAR wc, uc;
emh203	0:6b1e6c9e48ba	1223
emh203	0:6b1e6c9e48ba	1224
emh203	0:6b1e6c9e48ba	1225	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
emh203	0:6b1e6c9e48ba	1226
emh203	0:6b1e6c9e48ba	1227	s = 0; wc = 1;
emh203	0:6b1e6c9e48ba	1228	do {
emh203	0:6b1e6c9e48ba	1229	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
emh203	0:6b1e6c9e48ba	1230	if (wc) { /* Last char has not been processed */
emh203	0:6b1e6c9e48ba	1231	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
emh203	0:6b1e6c9e48ba	1232	lfnbuf[i++] = wc = uc; /* Store it */
emh203	0:6b1e6c9e48ba	1233	} else {
emh203	0:6b1e6c9e48ba	1234	if (uc != 0xFFFF) return 0; /* Check filler */
emh203	0:6b1e6c9e48ba	1235	}
emh203	0:6b1e6c9e48ba	1236	} while (++s < 13); /* Read all character in the entry */
emh203	0:6b1e6c9e48ba	1237
emh203	0:6b1e6c9e48ba	1238	if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
emh203	0:6b1e6c9e48ba	1239	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
emh203	0:6b1e6c9e48ba	1240	lfnbuf[i] = 0;
emh203	0:6b1e6c9e48ba	1241	}
emh203	0:6b1e6c9e48ba	1242
emh203	0:6b1e6c9e48ba	1243	return 1;
emh203	0:6b1e6c9e48ba	1244	}
emh203	0:6b1e6c9e48ba	1245
emh203	0:6b1e6c9e48ba	1246
emh203	0:6b1e6c9e48ba	1247	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	1248	static
emh203	0:6b1e6c9e48ba	1249	void fit_lfn (
emh203	0:6b1e6c9e48ba	1250	const WCHAR lfnbuf, / Pointer to the LFN buffer */
emh203	0:6b1e6c9e48ba	1251	BYTE dir, / Pointer to the directory entry */
emh203	0:6b1e6c9e48ba	1252	BYTE ord, /* LFN order (1-20) */
emh203	0:6b1e6c9e48ba	1253	BYTE sum /* SFN sum */
emh203	0:6b1e6c9e48ba	1254	)
emh203	0:6b1e6c9e48ba	1255	{
emh203	0:6b1e6c9e48ba	1256	UINT i, s;
emh203	0:6b1e6c9e48ba	1257	WCHAR wc;
emh203	0:6b1e6c9e48ba	1258
emh203	0:6b1e6c9e48ba	1259
emh203	0:6b1e6c9e48ba	1260	dir[LDIR_Chksum] = sum; /* Set check sum */
emh203	0:6b1e6c9e48ba	1261	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
emh203	0:6b1e6c9e48ba	1262	dir[LDIR_Type] = 0;
emh203	0:6b1e6c9e48ba	1263	ST_WORD(dir+LDIR_FstClusLO, 0);
emh203	0:6b1e6c9e48ba	1264
emh203	0:6b1e6c9e48ba	1265	i = (ord - 1) * 13; /* Get offset in the LFN buffer */
emh203	0:6b1e6c9e48ba	1266	s = wc = 0;
emh203	0:6b1e6c9e48ba	1267	do {
emh203	0:6b1e6c9e48ba	1268	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */
emh203	0:6b1e6c9e48ba	1269	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
emh203	0:6b1e6c9e48ba	1270	if (!wc) wc = 0xFFFF; /* Padding chars following last char */
emh203	0:6b1e6c9e48ba	1271	} while (++s < 13);
emh203	0:6b1e6c9e48ba	1272	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLE; /* Bottom LFN part is the start of LFN sequence */
emh203	0:6b1e6c9e48ba	1273	dir[LDIR_Ord] = ord; /* Set the LFN order */
emh203	0:6b1e6c9e48ba	1274	}
emh203	0:6b1e6c9e48ba	1275
emh203	0:6b1e6c9e48ba	1276	#endif
emh203	0:6b1e6c9e48ba	1277	#endif
emh203	0:6b1e6c9e48ba	1278
emh203	0:6b1e6c9e48ba	1279
emh203	0:6b1e6c9e48ba	1280
emh203	0:6b1e6c9e48ba	1281	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1282	/* Create numbered name */
emh203	0:6b1e6c9e48ba	1283	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1284	#if _USE_LFN
emh203	0:6b1e6c9e48ba	1285	void gen_numname (
emh203	0:6b1e6c9e48ba	1286	BYTE dst, / Pointer to generated SFN */
emh203	0:6b1e6c9e48ba	1287	const BYTE src, / Pointer to source SFN to be modified */
emh203	0:6b1e6c9e48ba	1288	const WCHAR lfn, / Pointer to LFN */
emh203	0:6b1e6c9e48ba	1289	WORD seq /* Sequence number */
emh203	0:6b1e6c9e48ba	1290	)
emh203	0:6b1e6c9e48ba	1291	{
emh203	0:6b1e6c9e48ba	1292	BYTE ns[8], c;
emh203	0:6b1e6c9e48ba	1293	UINT i, j;
emh203	0:6b1e6c9e48ba	1294
emh203	0:6b1e6c9e48ba	1295
emh203	0:6b1e6c9e48ba	1296	mem_cpy(dst, src, 11);
emh203	0:6b1e6c9e48ba	1297
emh203	0:6b1e6c9e48ba	1298	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
emh203	0:6b1e6c9e48ba	1299	do seq = (seq >> 1) + (seq << 15) + (WORD)lfn++; while (lfn);
emh203	0:6b1e6c9e48ba	1300	}
emh203	0:6b1e6c9e48ba	1301
emh203	0:6b1e6c9e48ba	1302	/* itoa (hexdecimal) */
emh203	0:6b1e6c9e48ba	1303	i = 7;
emh203	0:6b1e6c9e48ba	1304	do {
emh203	0:6b1e6c9e48ba	1305	c = (seq % 16) + '0';
emh203	0:6b1e6c9e48ba	1306	if (c > '9') c += 7;
emh203	0:6b1e6c9e48ba	1307	ns[i--] = c;
emh203	0:6b1e6c9e48ba	1308	seq /= 16;
emh203	0:6b1e6c9e48ba	1309	} while (seq);
emh203	0:6b1e6c9e48ba	1310	ns[i] = '~';
emh203	0:6b1e6c9e48ba	1311
emh203	0:6b1e6c9e48ba	1312	/* Append the number */
emh203	0:6b1e6c9e48ba	1313	for (j = 0; j < i && dst[j] != ' '; j++) {
emh203	0:6b1e6c9e48ba	1314	if (IsDBCS1(dst[j])) {
emh203	0:6b1e6c9e48ba	1315	if (j == i - 1) break;
emh203	0:6b1e6c9e48ba	1316	j++;
emh203	0:6b1e6c9e48ba	1317	}
emh203	0:6b1e6c9e48ba	1318	}
emh203	0:6b1e6c9e48ba	1319	do {
emh203	0:6b1e6c9e48ba	1320	dst[j++] = (i < 8) ? ns[i++] : ' ';
emh203	0:6b1e6c9e48ba	1321	} while (j < 8);
emh203	0:6b1e6c9e48ba	1322	}
emh203	0:6b1e6c9e48ba	1323	#endif
emh203	0:6b1e6c9e48ba	1324
emh203	0:6b1e6c9e48ba	1325
emh203	0:6b1e6c9e48ba	1326
emh203	0:6b1e6c9e48ba	1327
emh203	0:6b1e6c9e48ba	1328	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1329	/* Calculate sum of an SFN */
emh203	0:6b1e6c9e48ba	1330	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1331	#if _USE_LFN
emh203	0:6b1e6c9e48ba	1332	static
emh203	0:6b1e6c9e48ba	1333	BYTE sum_sfn (
emh203	0:6b1e6c9e48ba	1334	const BYTE dir / Ptr to directory entry */
emh203	0:6b1e6c9e48ba	1335	)
emh203	0:6b1e6c9e48ba	1336	{
emh203	0:6b1e6c9e48ba	1337	BYTE sum = 0;
emh203	0:6b1e6c9e48ba	1338	UINT n = 11;
emh203	0:6b1e6c9e48ba	1339
emh203	0:6b1e6c9e48ba	1340	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
emh203	0:6b1e6c9e48ba	1341	return sum;
emh203	0:6b1e6c9e48ba	1342	}
emh203	0:6b1e6c9e48ba	1343	#endif
emh203	0:6b1e6c9e48ba	1344
emh203	0:6b1e6c9e48ba	1345
emh203	0:6b1e6c9e48ba	1346
emh203	0:6b1e6c9e48ba	1347
emh203	0:6b1e6c9e48ba	1348	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1349	/* Directory handling - Find an object in the directory */
emh203	0:6b1e6c9e48ba	1350	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1351
emh203	0:6b1e6c9e48ba	1352	static
emh203	0:6b1e6c9e48ba	1353	FRESULT dir_find (
emh203	0:6b1e6c9e48ba	1354	eDIR dj / Pointer to the directory object linked to the file name */
emh203	0:6b1e6c9e48ba	1355	)
emh203	0:6b1e6c9e48ba	1356	{
emh203	0:6b1e6c9e48ba	1357	FRESULT res;
emh203	0:6b1e6c9e48ba	1358	BYTE c, *dir;
emh203	0:6b1e6c9e48ba	1359	#if _USE_LFN
emh203	0:6b1e6c9e48ba	1360	BYTE a, ord, sum;
emh203	0:6b1e6c9e48ba	1361	#endif
emh203	0:6b1e6c9e48ba	1362
emh203	0:6b1e6c9e48ba	1363	res = dir_sdi(dj, 0); /* Rewind directory object */
emh203	0:6b1e6c9e48ba	1364	if (res != FR_OK) return res;
emh203	0:6b1e6c9e48ba	1365
emh203	0:6b1e6c9e48ba	1366	#if _USE_LFN
emh203	0:6b1e6c9e48ba	1367	ord = sum = 0xFF;
emh203	0:6b1e6c9e48ba	1368	#endif
emh203	0:6b1e6c9e48ba	1369	do {
emh203	0:6b1e6c9e48ba	1370	res = move_window(dj->fs, dj->sect);
emh203	0:6b1e6c9e48ba	1371	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	1372	dir = dj->dir; /* Ptr to the directory entry of current index */
emh203	0:6b1e6c9e48ba	1373	c = dir[DIR_Name];
emh203	0:6b1e6c9e48ba	1374	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
emh203	0:6b1e6c9e48ba	1375	#if _USE_LFN /* LFN configuration */
emh203	0:6b1e6c9e48ba	1376	a = dir[DIR_Attr] & AM_MASK;
emh203	0:6b1e6c9e48ba	1377	if (c == DDE \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
emh203	0:6b1e6c9e48ba	1378	ord = 0xFF;
emh203	0:6b1e6c9e48ba	1379	} else {
emh203	0:6b1e6c9e48ba	1380	if (a == AM_LFN) { /* An LFN entry is found */
emh203	0:6b1e6c9e48ba	1381	if (dj->lfn) {
emh203	0:6b1e6c9e48ba	1382	if (c & LLE) { /* Is it start of LFN sequence? */
emh203	0:6b1e6c9e48ba	1383	sum = dir[LDIR_Chksum];
emh203	0:6b1e6c9e48ba	1384	c &= ~LLE; ord = c; /* LFN start order */
emh203	0:6b1e6c9e48ba	1385	dj->lfn_idx = dj->index;
emh203	0:6b1e6c9e48ba	1386	}
emh203	0:6b1e6c9e48ba	1387	/* Check validity of the LFN entry and compare it with given name */
emh203	0:6b1e6c9e48ba	1388	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
emh203	0:6b1e6c9e48ba	1389	}
emh203	0:6b1e6c9e48ba	1390	} else { /* An SFN entry is found */
emh203	0:6b1e6c9e48ba	1391	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
emh203	0:6b1e6c9e48ba	1392	ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */
emh203	0:6b1e6c9e48ba	1393	if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */
emh203	0:6b1e6c9e48ba	1394	}
emh203	0:6b1e6c9e48ba	1395	}
emh203	0:6b1e6c9e48ba	1396	#else /* Non LFN configuration */
emh203	0:6b1e6c9e48ba	1397	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
emh203	0:6b1e6c9e48ba	1398	break;
emh203	0:6b1e6c9e48ba	1399	#endif
emh203	0:6b1e6c9e48ba	1400	res = dir_next(dj, 0); /* Next entry */
emh203	0:6b1e6c9e48ba	1401	} while (res == FR_OK);
emh203	0:6b1e6c9e48ba	1402
emh203	0:6b1e6c9e48ba	1403	return res;
emh203	0:6b1e6c9e48ba	1404	}
emh203	0:6b1e6c9e48ba	1405
emh203	0:6b1e6c9e48ba	1406
emh203	0:6b1e6c9e48ba	1407
emh203	0:6b1e6c9e48ba	1408
emh203	0:6b1e6c9e48ba	1409	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1410	/* Read an object from the directory */
emh203	0:6b1e6c9e48ba	1411	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1412	#if _FS_MINIMIZE <= 1
emh203	0:6b1e6c9e48ba	1413	static
emh203	0:6b1e6c9e48ba	1414	FRESULT dir_read (
emh203	0:6b1e6c9e48ba	1415	eDIR dj / Pointer to the directory object that pointing the entry to be read */
emh203	0:6b1e6c9e48ba	1416	)
emh203	0:6b1e6c9e48ba	1417	{
emh203	0:6b1e6c9e48ba	1418	FRESULT res;
emh203	0:6b1e6c9e48ba	1419	BYTE c, *dir;
emh203	0:6b1e6c9e48ba	1420	#if _USE_LFN
emh203	0:6b1e6c9e48ba	1421	BYTE a, ord = 0xFF, sum = 0xFF;
emh203	0:6b1e6c9e48ba	1422	#endif
emh203	0:6b1e6c9e48ba	1423
emh203	0:6b1e6c9e48ba	1424	res = FR_NO_FILE;
emh203	0:6b1e6c9e48ba	1425	while (dj->sect) {
emh203	0:6b1e6c9e48ba	1426	res = move_window(dj->fs, dj->sect);
emh203	0:6b1e6c9e48ba	1427	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	1428	dir = dj->dir; /* Ptr to the directory entry of current index */
emh203	0:6b1e6c9e48ba	1429	c = dir[DIR_Name];
emh203	0:6b1e6c9e48ba	1430	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
emh203	0:6b1e6c9e48ba	1431	#if _USE_LFN /* LFN configuration */
emh203	0:6b1e6c9e48ba	1432	a = dir[DIR_Attr] & AM_MASK;
emh203	0:6b1e6c9e48ba	1433	if (c == DDE \|\| (!_FS_RPATH && c == '.') \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
emh203	0:6b1e6c9e48ba	1434	ord = 0xFF;
emh203	0:6b1e6c9e48ba	1435	} else {
emh203	0:6b1e6c9e48ba	1436	if (a == AM_LFN) { /* An LFN entry is found */
emh203	0:6b1e6c9e48ba	1437	if (c & LLE) { /* Is it start of LFN sequence? */
emh203	0:6b1e6c9e48ba	1438	sum = dir[LDIR_Chksum];
emh203	0:6b1e6c9e48ba	1439	c &= ~LLE; ord = c;
emh203	0:6b1e6c9e48ba	1440	dj->lfn_idx = dj->index;
emh203	0:6b1e6c9e48ba	1441	}
emh203	0:6b1e6c9e48ba	1442	/* Check LFN validity and capture it */
emh203	0:6b1e6c9e48ba	1443	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
emh203	0:6b1e6c9e48ba	1444	} else { /* An SFN entry is found */
emh203	0:6b1e6c9e48ba	1445	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
emh203	0:6b1e6c9e48ba	1446	dj->lfn_idx = 0xFFFF; /* It has no LFN. */
emh203	0:6b1e6c9e48ba	1447	break;
emh203	0:6b1e6c9e48ba	1448	}
emh203	0:6b1e6c9e48ba	1449	}
emh203	0:6b1e6c9e48ba	1450	#else /* Non LFN configuration */
emh203	0:6b1e6c9e48ba	1451	if (c != DDE && (_FS_RPATH \|\| c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
emh203	0:6b1e6c9e48ba	1452	break;
emh203	0:6b1e6c9e48ba	1453	#endif
emh203	0:6b1e6c9e48ba	1454	res = dir_next(dj, 0); /* Next entry */
emh203	0:6b1e6c9e48ba	1455	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	1456	}
emh203	0:6b1e6c9e48ba	1457
emh203	0:6b1e6c9e48ba	1458	if (res != FR_OK) dj->sect = 0;
emh203	0:6b1e6c9e48ba	1459
emh203	0:6b1e6c9e48ba	1460	return res;
emh203	0:6b1e6c9e48ba	1461	}
emh203	0:6b1e6c9e48ba	1462	#endif
emh203	0:6b1e6c9e48ba	1463
emh203	0:6b1e6c9e48ba	1464
emh203	0:6b1e6c9e48ba	1465
emh203	0:6b1e6c9e48ba	1466	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1467	/* Register an object to the directory */
emh203	0:6b1e6c9e48ba	1468	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1469	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	1470	static
emh203	0:6b1e6c9e48ba	1471	FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
emh203	0:6b1e6c9e48ba	1472	eDIR dj / Target directory with object name to be created */
emh203	0:6b1e6c9e48ba	1473	)
emh203	0:6b1e6c9e48ba	1474	{
emh203	0:6b1e6c9e48ba	1475	FRESULT res;
emh203	0:6b1e6c9e48ba	1476	BYTE c, *dir;
emh203	0:6b1e6c9e48ba	1477	#if _USE_LFN /* LFN configuration */
emh203	0:6b1e6c9e48ba	1478	WORD n, ne, is;
emh203	0:6b1e6c9e48ba	1479	BYTE sn[12], *fn, sum;
emh203	0:6b1e6c9e48ba	1480	WCHAR *lfn;
emh203	0:6b1e6c9e48ba	1481
emh203	0:6b1e6c9e48ba	1482
emh203	0:6b1e6c9e48ba	1483	fn = dj->fn; lfn = dj->lfn;
emh203	0:6b1e6c9e48ba	1484	mem_cpy(sn, fn, 12);
emh203	0:6b1e6c9e48ba	1485
emh203	0:6b1e6c9e48ba	1486	if (_FS_RPATH && (sn[NS] & NS_DOT)) /* Cannot create dot entry */
emh203	0:6b1e6c9e48ba	1487	return FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	1488
emh203	0:6b1e6c9e48ba	1489	if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
emh203	0:6b1e6c9e48ba	1490	fn[NS] = 0; dj->lfn = 0; /* Find only SFN */
emh203	0:6b1e6c9e48ba	1491	for (n = 1; n < 100; n++) {
emh203	0:6b1e6c9e48ba	1492	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
emh203	0:6b1e6c9e48ba	1493	res = dir_find(dj); /* Check if the name collides with existing SFN */
emh203	0:6b1e6c9e48ba	1494	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	1495	}
emh203	0:6b1e6c9e48ba	1496	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
emh203	0:6b1e6c9e48ba	1497	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
emh203	0:6b1e6c9e48ba	1498	fn[NS] = sn[NS]; dj->lfn = lfn;
emh203	0:6b1e6c9e48ba	1499	}
emh203	0:6b1e6c9e48ba	1500
emh203	0:6b1e6c9e48ba	1501	if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve an SFN + LFN entries. */
emh203	0:6b1e6c9e48ba	1502	for (ne = 0; lfn[ne]; ne++) ;
emh203	0:6b1e6c9e48ba	1503	ne = (ne + 25) / 13;
emh203	0:6b1e6c9e48ba	1504	} else { /* Otherwise reserve only an SFN entry. */
emh203	0:6b1e6c9e48ba	1505	ne = 1;
emh203	0:6b1e6c9e48ba	1506	}
emh203	0:6b1e6c9e48ba	1507
emh203	0:6b1e6c9e48ba	1508	/* Reserve contiguous entries */
emh203	0:6b1e6c9e48ba	1509	res = dir_sdi(dj, 0);
emh203	0:6b1e6c9e48ba	1510	if (res != FR_OK) return res;
emh203	0:6b1e6c9e48ba	1511	n = is = 0;
emh203	0:6b1e6c9e48ba	1512	do {
emh203	0:6b1e6c9e48ba	1513	res = move_window(dj->fs, dj->sect);
emh203	0:6b1e6c9e48ba	1514	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	1515	c = dj->dir; / Check the entry status */
emh203	0:6b1e6c9e48ba	1516	if (c == DDE \|\| c == 0) { /* Is it a blank entry? */
emh203	0:6b1e6c9e48ba	1517	if (n == 0) is = dj->index; /* First index of the contiguous entry */
emh203	0:6b1e6c9e48ba	1518	if (++n == ne) break; /* A contiguous entry that required count is found */
emh203	0:6b1e6c9e48ba	1519	} else {
emh203	0:6b1e6c9e48ba	1520	n = 0; /* Not a blank entry. Restart to search */
emh203	0:6b1e6c9e48ba	1521	}
emh203	0:6b1e6c9e48ba	1522	res = dir_next(dj, 1); /* Next entry with table stretch */
emh203	0:6b1e6c9e48ba	1523	} while (res == FR_OK);
emh203	0:6b1e6c9e48ba	1524
emh203	0:6b1e6c9e48ba	1525	if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */
emh203	0:6b1e6c9e48ba	1526	res = dir_sdi(dj, is);
emh203	0:6b1e6c9e48ba	1527	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	1528	sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */
emh203	0:6b1e6c9e48ba	1529	ne--;
emh203	0:6b1e6c9e48ba	1530	do { /* Store LFN entries in bottom first */
emh203	0:6b1e6c9e48ba	1531	res = move_window(dj->fs, dj->sect);
emh203	0:6b1e6c9e48ba	1532	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	1533	fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
emh203	0:6b1e6c9e48ba	1534	dj->fs->wflag = 1;
emh203	0:6b1e6c9e48ba	1535	res = dir_next(dj, 0); /* Next entry */
emh203	0:6b1e6c9e48ba	1536	} while (res == FR_OK && --ne);
emh203	0:6b1e6c9e48ba	1537	}
emh203	0:6b1e6c9e48ba	1538	}
emh203	0:6b1e6c9e48ba	1539
emh203	0:6b1e6c9e48ba	1540	#else /* Non LFN configuration */
emh203	0:6b1e6c9e48ba	1541	res = dir_sdi(dj, 0);
emh203	0:6b1e6c9e48ba	1542	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	1543	do { /* Find a blank entry for the SFN */
emh203	0:6b1e6c9e48ba	1544	res = move_window(dj->fs, dj->sect);
emh203	0:6b1e6c9e48ba	1545	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	1546	c = *dj->dir;
emh203	0:6b1e6c9e48ba	1547	if (c == DDE \|\| c == 0) break; /* Is it a blank entry? */
emh203	0:6b1e6c9e48ba	1548	res = dir_next(dj, 1); /* Next entry with table stretch */
emh203	0:6b1e6c9e48ba	1549	} while (res == FR_OK);
emh203	0:6b1e6c9e48ba	1550	}
emh203	0:6b1e6c9e48ba	1551	#endif
emh203	0:6b1e6c9e48ba	1552
emh203	0:6b1e6c9e48ba	1553	if (res == FR_OK) { /* Initialize the SFN entry */
emh203	0:6b1e6c9e48ba	1554	res = move_window(dj->fs, dj->sect);
emh203	0:6b1e6c9e48ba	1555	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	1556	dir = dj->dir;
emh203	0:6b1e6c9e48ba	1557	mem_set(dir, 0, SZ_DIR); /* Clean the entry */
emh203	0:6b1e6c9e48ba	1558	mem_cpy(dir, dj->fn, 11); /* Put SFN */
emh203	0:6b1e6c9e48ba	1559	#if _USE_LFN
emh203	0:6b1e6c9e48ba	1560	dir[DIR_NTres] = (dj->fn+NS) & (NS_BODY \| NS_EXT); / Put NT flag */
emh203	0:6b1e6c9e48ba	1561	#endif
emh203	0:6b1e6c9e48ba	1562	dj->fs->wflag = 1;
emh203	0:6b1e6c9e48ba	1563	}
emh203	0:6b1e6c9e48ba	1564	}
emh203	0:6b1e6c9e48ba	1565
emh203	0:6b1e6c9e48ba	1566	return res;
emh203	0:6b1e6c9e48ba	1567	}
emh203	0:6b1e6c9e48ba	1568	#endif /* !_FS_READONLY */
emh203	0:6b1e6c9e48ba	1569
emh203	0:6b1e6c9e48ba	1570
emh203	0:6b1e6c9e48ba	1571
emh203	0:6b1e6c9e48ba	1572
emh203	0:6b1e6c9e48ba	1573	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1574	/* Remove an object from the directory */
emh203	0:6b1e6c9e48ba	1575	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1576	#if !_FS_READONLY && !_FS_MINIMIZE
emh203	0:6b1e6c9e48ba	1577	static
emh203	0:6b1e6c9e48ba	1578	FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
emh203	0:6b1e6c9e48ba	1579	eDIR dj / Directory object pointing the entry to be removed */
emh203	0:6b1e6c9e48ba	1580	)
emh203	0:6b1e6c9e48ba	1581	{
emh203	0:6b1e6c9e48ba	1582	FRESULT res;
emh203	0:6b1e6c9e48ba	1583	#if _USE_LFN /* LFN configuration */
emh203	0:6b1e6c9e48ba	1584	WORD i;
emh203	0:6b1e6c9e48ba	1585
emh203	0:6b1e6c9e48ba	1586	i = dj->index; /* SFN index */
emh203	0:6b1e6c9e48ba	1587	res = dir_sdi(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */
emh203	0:6b1e6c9e48ba	1588	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	1589	do {
emh203	0:6b1e6c9e48ba	1590	res = move_window(dj->fs, dj->sect);
emh203	0:6b1e6c9e48ba	1591	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	1592	dj->dir = DDE; / Mark the entry "deleted" */
emh203	0:6b1e6c9e48ba	1593	dj->fs->wflag = 1;
emh203	0:6b1e6c9e48ba	1594	if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
emh203	0:6b1e6c9e48ba	1595	res = dir_next(dj, 0); /* Next entry */
emh203	0:6b1e6c9e48ba	1596	} while (res == FR_OK);
emh203	0:6b1e6c9e48ba	1597	if (res == FR_NO_FILE) res = FR_INT_ERR;
emh203	0:6b1e6c9e48ba	1598	}
emh203	0:6b1e6c9e48ba	1599
emh203	0:6b1e6c9e48ba	1600	#else /* Non LFN configuration */
emh203	0:6b1e6c9e48ba	1601	res = dir_sdi(dj, dj->index);
emh203	0:6b1e6c9e48ba	1602	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	1603	res = move_window(dj->fs, dj->sect);
emh203	0:6b1e6c9e48ba	1604	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	1605	dj->dir = DDE; / Mark the entry "deleted" */
emh203	0:6b1e6c9e48ba	1606	dj->fs->wflag = 1;
emh203	0:6b1e6c9e48ba	1607	}
emh203	0:6b1e6c9e48ba	1608	}
emh203	0:6b1e6c9e48ba	1609	#endif
emh203	0:6b1e6c9e48ba	1610
emh203	0:6b1e6c9e48ba	1611	return res;
emh203	0:6b1e6c9e48ba	1612	}
emh203	0:6b1e6c9e48ba	1613	#endif /* !_FS_READONLY */
emh203	0:6b1e6c9e48ba	1614
emh203	0:6b1e6c9e48ba	1615
emh203	0:6b1e6c9e48ba	1616
emh203	0:6b1e6c9e48ba	1617
emh203	0:6b1e6c9e48ba	1618	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1619	/* Pick a segment and create the object name in directory form */
emh203	0:6b1e6c9e48ba	1620	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1621
emh203	0:6b1e6c9e48ba	1622	static
emh203	0:6b1e6c9e48ba	1623	FRESULT create_name (
emh203	0:6b1e6c9e48ba	1624	eDIR dj, / Pointer to the directory object */
emh203	0:6b1e6c9e48ba	1625	const TCHAR *path / Pointer to pointer to the segment in the path string */
emh203	0:6b1e6c9e48ba	1626	)
emh203	0:6b1e6c9e48ba	1627	{
emh203	0:6b1e6c9e48ba	1628	#ifdef _EXCVT
emh203	0:6b1e6c9e48ba	1629	static const BYTE excvt[] = _EXCVT; /* Upper conversion table for extended chars */
emh203	0:6b1e6c9e48ba	1630	#endif
emh203	0:6b1e6c9e48ba	1631
emh203	0:6b1e6c9e48ba	1632	#if _USE_LFN /* LFN configuration */
emh203	0:6b1e6c9e48ba	1633	BYTE b, cf;
emh203	0:6b1e6c9e48ba	1634	WCHAR w, *lfn;
emh203	0:6b1e6c9e48ba	1635	UINT i, ni, si, di;
emh203	0:6b1e6c9e48ba	1636	const TCHAR *p;
emh203	0:6b1e6c9e48ba	1637
emh203	0:6b1e6c9e48ba	1638	/* Create LFN in Unicode */
emh203	0:6b1e6c9e48ba	1639	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
emh203	0:6b1e6c9e48ba	1640	lfn = dj->lfn;
emh203	0:6b1e6c9e48ba	1641	si = di = 0;
emh203	0:6b1e6c9e48ba	1642	for (;;) {
emh203	0:6b1e6c9e48ba	1643	w = p[si++]; /* Get a character */
emh203	0:6b1e6c9e48ba	1644	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
emh203	0:6b1e6c9e48ba	1645	if (di >= _MAX_LFN) /* Reject too long name */
emh203	0:6b1e6c9e48ba	1646	return FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	1647	#if !_LFN_UNICODE
emh203	0:6b1e6c9e48ba	1648	w &= 0xFF;
emh203	0:6b1e6c9e48ba	1649	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
emh203	0:6b1e6c9e48ba	1650	b = (BYTE)p[si++]; /* Get 2nd byte */
emh203	0:6b1e6c9e48ba	1651	if (!IsDBCS2(b))
emh203	0:6b1e6c9e48ba	1652	return FR_INVALID_NAME; /* Reject invalid sequence */
emh203	0:6b1e6c9e48ba	1653	w = (w << 8) + b; /* Create a DBC */
emh203	0:6b1e6c9e48ba	1654	}
emh203	0:6b1e6c9e48ba	1655	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
emh203	0:6b1e6c9e48ba	1656	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
emh203	0:6b1e6c9e48ba	1657	#endif
emh203	0:6b1e6c9e48ba	1658	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal chars for LFN */
emh203	0:6b1e6c9e48ba	1659	return FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	1660	lfn[di++] = w; /* Store the Unicode char */
emh203	0:6b1e6c9e48ba	1661	}
emh203	0:6b1e6c9e48ba	1662	path = &p[si]; / Return pointer to the next segment */
emh203	0:6b1e6c9e48ba	1663	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
emh203	0:6b1e6c9e48ba	1664	#if _FS_RPATH
emh203	0:6b1e6c9e48ba	1665	if ((di == 1 && lfn[di-1] == '.') \|\| /* Is this a dot entry? */
emh203	0:6b1e6c9e48ba	1666	(di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
emh203	0:6b1e6c9e48ba	1667	lfn[di] = 0;
emh203	0:6b1e6c9e48ba	1668	for (i = 0; i < 11; i++)
emh203	0:6b1e6c9e48ba	1669	dj->fn[i] = (i < di) ? '.' : ' ';
emh203	0:6b1e6c9e48ba	1670	dj->fn[i] = cf \| NS_DOT; /* This is a dot entry */
emh203	0:6b1e6c9e48ba	1671	return FR_OK;
emh203	0:6b1e6c9e48ba	1672	}
emh203	0:6b1e6c9e48ba	1673	#endif
emh203	0:6b1e6c9e48ba	1674	while (di) { /* Strip trailing spaces and dots */
emh203	0:6b1e6c9e48ba	1675	w = lfn[di-1];
emh203	0:6b1e6c9e48ba	1676	if (w != ' ' && w != '.') break;
emh203	0:6b1e6c9e48ba	1677	di--;
emh203	0:6b1e6c9e48ba	1678	}
emh203	0:6b1e6c9e48ba	1679	if (!di) return FR_INVALID_NAME; /* Reject nul string */
emh203	0:6b1e6c9e48ba	1680
emh203	0:6b1e6c9e48ba	1681	lfn[di] = 0; /* LFN is created */
emh203	0:6b1e6c9e48ba	1682
emh203	0:6b1e6c9e48ba	1683	/* Create SFN in directory form */
emh203	0:6b1e6c9e48ba	1684	mem_set(dj->fn, ' ', 11);
emh203	0:6b1e6c9e48ba	1685	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
emh203	0:6b1e6c9e48ba	1686	if (si) cf \|= NS_LOSS \| NS_LFN;
emh203	0:6b1e6c9e48ba	1687	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
emh203	0:6b1e6c9e48ba	1688
emh203	0:6b1e6c9e48ba	1689	b = i = 0; ni = 8;
emh203	0:6b1e6c9e48ba	1690	for (;;) {
emh203	0:6b1e6c9e48ba	1691	w = lfn[si++]; /* Get an LFN char */
emh203	0:6b1e6c9e48ba	1692	if (!w) break; /* Break on end of the LFN */
emh203	0:6b1e6c9e48ba	1693	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
emh203	0:6b1e6c9e48ba	1694	cf \|= NS_LOSS \| NS_LFN; continue;
emh203	0:6b1e6c9e48ba	1695	}
emh203	0:6b1e6c9e48ba	1696
emh203	0:6b1e6c9e48ba	1697	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
emh203	0:6b1e6c9e48ba	1698	if (ni == 11) { /* Long extension */
emh203	0:6b1e6c9e48ba	1699	cf \|= NS_LOSS \| NS_LFN; break;
emh203	0:6b1e6c9e48ba	1700	}
emh203	0:6b1e6c9e48ba	1701	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
emh203	0:6b1e6c9e48ba	1702	if (si > di) break; /* No extension */
emh203	0:6b1e6c9e48ba	1703	si = di; i = 8; ni = 11; /* Enter extension section */
emh203	0:6b1e6c9e48ba	1704	b <<= 2; continue;
emh203	0:6b1e6c9e48ba	1705	}
emh203	0:6b1e6c9e48ba	1706
emh203	0:6b1e6c9e48ba	1707	if (w >= 0x80) { /* Non ASCII char */
emh203	0:6b1e6c9e48ba	1708	#ifdef _EXCVT
emh203	0:6b1e6c9e48ba	1709	w = ff_convert(w, 0); /* Unicode -> OEM code */
emh203	0:6b1e6c9e48ba	1710	if (w) w = excvt[w - 0x80]; /* Convert extended char to upper (SBCS) */
emh203	0:6b1e6c9e48ba	1711	#else
emh203	0:6b1e6c9e48ba	1712	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
emh203	0:6b1e6c9e48ba	1713	#endif
emh203	0:6b1e6c9e48ba	1714	cf \|= NS_LFN; /* Force create LFN entry */
emh203	0:6b1e6c9e48ba	1715	}
emh203	0:6b1e6c9e48ba	1716
emh203	0:6b1e6c9e48ba	1717	if (_DF1S && w >= 0x100) { /* Double byte char (always false on SBCS cfg) */
emh203	0:6b1e6c9e48ba	1718	if (i >= ni - 1) {
emh203	0:6b1e6c9e48ba	1719	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
emh203	0:6b1e6c9e48ba	1720	}
emh203	0:6b1e6c9e48ba	1721	dj->fn[i++] = (BYTE)(w >> 8);
emh203	0:6b1e6c9e48ba	1722	} else { /* Single byte char */
emh203	0:6b1e6c9e48ba	1723	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal chars for SFN */
emh203	0:6b1e6c9e48ba	1724	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
emh203	0:6b1e6c9e48ba	1725	} else {
emh203	0:6b1e6c9e48ba	1726	if (IsUpper(w)) { /* ASCII large capital */
emh203	0:6b1e6c9e48ba	1727	b \|= 2;
emh203	0:6b1e6c9e48ba	1728	} else {
emh203	0:6b1e6c9e48ba	1729	if (IsLower(w)) { /* ASCII small capital */
emh203	0:6b1e6c9e48ba	1730	b \|= 1; w -= 0x20;
emh203	0:6b1e6c9e48ba	1731	}
emh203	0:6b1e6c9e48ba	1732	}
emh203	0:6b1e6c9e48ba	1733	}
emh203	0:6b1e6c9e48ba	1734	}
emh203	0:6b1e6c9e48ba	1735	dj->fn[i++] = (BYTE)w;
emh203	0:6b1e6c9e48ba	1736	}
emh203	0:6b1e6c9e48ba	1737
emh203	0:6b1e6c9e48ba	1738	if (dj->fn[0] == DDE) dj->fn[0] = NDDE; /* If the first char collides with deleted mark, replace it with 0x05 */
emh203	0:6b1e6c9e48ba	1739
emh203	0:6b1e6c9e48ba	1740	if (ni == 8) b <<= 2;
emh203	0:6b1e6c9e48ba	1741	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
emh203	0:6b1e6c9e48ba	1742	cf \|= NS_LFN;
emh203	0:6b1e6c9e48ba	1743	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */
emh203	0:6b1e6c9e48ba	1744	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
emh203	0:6b1e6c9e48ba	1745	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
emh203	0:6b1e6c9e48ba	1746	}
emh203	0:6b1e6c9e48ba	1747
emh203	0:6b1e6c9e48ba	1748	dj->fn[NS] = cf; /* SFN is created */
emh203	0:6b1e6c9e48ba	1749
emh203	0:6b1e6c9e48ba	1750	return FR_OK;
emh203	0:6b1e6c9e48ba	1751
emh203	0:6b1e6c9e48ba	1752
emh203	0:6b1e6c9e48ba	1753	#else /* Non-LFN configuration */
emh203	0:6b1e6c9e48ba	1754	BYTE b, c, d, *sfn;
emh203	0:6b1e6c9e48ba	1755	UINT ni, si, i;
emh203	0:6b1e6c9e48ba	1756	const char *p;
emh203	0:6b1e6c9e48ba	1757
emh203	0:6b1e6c9e48ba	1758	/* Create file name in directory form */
emh203	0:6b1e6c9e48ba	1759	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
emh203	0:6b1e6c9e48ba	1760	sfn = dj->fn;
emh203	0:6b1e6c9e48ba	1761	mem_set(sfn, ' ', 11);
emh203	0:6b1e6c9e48ba	1762	si = i = b = 0; ni = 8;
emh203	0:6b1e6c9e48ba	1763	#if _FS_RPATH
emh203	0:6b1e6c9e48ba	1764	if (p[si] == '.') { /* Is this a dot entry? */
emh203	0:6b1e6c9e48ba	1765	for (;;) {
emh203	0:6b1e6c9e48ba	1766	c = (BYTE)p[si++];
emh203	0:6b1e6c9e48ba	1767	if (c != '.' \|\| si >= 3) break;
emh203	0:6b1e6c9e48ba	1768	sfn[i++] = c;
emh203	0:6b1e6c9e48ba	1769	}
emh203	0:6b1e6c9e48ba	1770	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	1771	path = &p[si]; / Return pointer to the next segment */
emh203	0:6b1e6c9e48ba	1772	sfn[NS] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
emh203	0:6b1e6c9e48ba	1773	return FR_OK;
emh203	0:6b1e6c9e48ba	1774	}
emh203	0:6b1e6c9e48ba	1775	#endif
emh203	0:6b1e6c9e48ba	1776	for (;;) {
emh203	0:6b1e6c9e48ba	1777	c = (BYTE)p[si++];
emh203	0:6b1e6c9e48ba	1778	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
emh203	0:6b1e6c9e48ba	1779	if (c == '.' \|\| i >= ni) {
emh203	0:6b1e6c9e48ba	1780	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	1781	i = 8; ni = 11;
emh203	0:6b1e6c9e48ba	1782	b <<= 2; continue;
emh203	0:6b1e6c9e48ba	1783	}
emh203	0:6b1e6c9e48ba	1784	if (c >= 0x80) { /* Extended char? */
emh203	0:6b1e6c9e48ba	1785	b \|= 3; /* Eliminate NT flag */
emh203	0:6b1e6c9e48ba	1786	#ifdef _EXCVT
emh203	0:6b1e6c9e48ba	1787	c = excvt[c-0x80]; /* Upper conversion (SBCS) */
emh203	0:6b1e6c9e48ba	1788	#else
emh203	0:6b1e6c9e48ba	1789	#if !_DF1S /* ASCII only cfg */
emh203	0:6b1e6c9e48ba	1790	return FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	1791	#endif
emh203	0:6b1e6c9e48ba	1792	#endif
emh203	0:6b1e6c9e48ba	1793	}
emh203	0:6b1e6c9e48ba	1794	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
emh203	0:6b1e6c9e48ba	1795	d = (BYTE)p[si++]; /* Get 2nd byte */
emh203	0:6b1e6c9e48ba	1796	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
emh203	0:6b1e6c9e48ba	1797	return FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	1798	sfn[i++] = c;
emh203	0:6b1e6c9e48ba	1799	sfn[i++] = d;
emh203	0:6b1e6c9e48ba	1800	} else { /* Single byte code */
emh203	0:6b1e6c9e48ba	1801	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
emh203	0:6b1e6c9e48ba	1802	return FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	1803	if (IsUpper(c)) { /* ASCII large capital? */
emh203	0:6b1e6c9e48ba	1804	b \|= 2;
emh203	0:6b1e6c9e48ba	1805	} else {
emh203	0:6b1e6c9e48ba	1806	if (IsLower(c)) { /* ASCII small capital? */
emh203	0:6b1e6c9e48ba	1807	b \|= 1; c -= 0x20;
emh203	0:6b1e6c9e48ba	1808	}
emh203	0:6b1e6c9e48ba	1809	}
emh203	0:6b1e6c9e48ba	1810	sfn[i++] = c;
emh203	0:6b1e6c9e48ba	1811	}
emh203	0:6b1e6c9e48ba	1812	}
emh203	0:6b1e6c9e48ba	1813	path = &p[si]; / Return pointer to the next segment */
emh203	0:6b1e6c9e48ba	1814	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
emh203	0:6b1e6c9e48ba	1815
emh203	0:6b1e6c9e48ba	1816	if (!i) return FR_INVALID_NAME; /* Reject nul string */
emh203	0:6b1e6c9e48ba	1817	if (sfn[0] == DDE) sfn[0] = NDDE; /* When first char collides with DDE, replace it with 0x05 */
emh203	0:6b1e6c9e48ba	1818
emh203	0:6b1e6c9e48ba	1819	if (ni == 8) b <<= 2;
emh203	0:6b1e6c9e48ba	1820	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
emh203	0:6b1e6c9e48ba	1821	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
emh203	0:6b1e6c9e48ba	1822
emh203	0:6b1e6c9e48ba	1823	sfn[NS] = c; /* Store NT flag, File name is created */
emh203	0:6b1e6c9e48ba	1824
emh203	0:6b1e6c9e48ba	1825	return FR_OK;
emh203	0:6b1e6c9e48ba	1826	#endif
emh203	0:6b1e6c9e48ba	1827	}
emh203	0:6b1e6c9e48ba	1828
emh203	0:6b1e6c9e48ba	1829
emh203	0:6b1e6c9e48ba	1830
emh203	0:6b1e6c9e48ba	1831
emh203	0:6b1e6c9e48ba	1832	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1833	/* Get file information from directory entry */
emh203	0:6b1e6c9e48ba	1834	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1835	#if _FS_MINIMIZE <= 1
emh203	0:6b1e6c9e48ba	1836	static
emh203	0:6b1e6c9e48ba	1837	void get_fileinfo ( /* No return code */
emh203	0:6b1e6c9e48ba	1838	eDIR dj, / Pointer to the directory object */
emh203	0:6b1e6c9e48ba	1839	FILINFO fno / Pointer to the file information to be filled */
emh203	0:6b1e6c9e48ba	1840	)
emh203	0:6b1e6c9e48ba	1841	{
emh203	0:6b1e6c9e48ba	1842	UINT i;
emh203	0:6b1e6c9e48ba	1843	BYTE nt, *dir;
emh203	0:6b1e6c9e48ba	1844	TCHAR *p, c;
emh203	0:6b1e6c9e48ba	1845
emh203	0:6b1e6c9e48ba	1846
emh203	0:6b1e6c9e48ba	1847	p = fno->fname;
emh203	0:6b1e6c9e48ba	1848	if (dj->sect) {
emh203	0:6b1e6c9e48ba	1849	dir = dj->dir;
emh203	0:6b1e6c9e48ba	1850	nt = dir[DIR_NTres]; /* NT flag */
emh203	0:6b1e6c9e48ba	1851	for (i = 0; i < 8; i++) { /* Copy name body */
emh203	0:6b1e6c9e48ba	1852	c = dir[i];
emh203	0:6b1e6c9e48ba	1853	if (c == ' ') break;
emh203	0:6b1e6c9e48ba	1854	if (c == NDDE) c = (TCHAR)DDE;
emh203	0:6b1e6c9e48ba	1855	if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
emh203	0:6b1e6c9e48ba	1856	#if _LFN_UNICODE
emh203	0:6b1e6c9e48ba	1857	if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i+1]))
emh203	0:6b1e6c9e48ba	1858	c = (c << 8) \| dir[++i];
emh203	0:6b1e6c9e48ba	1859	c = ff_convert(c, 1);
emh203	0:6b1e6c9e48ba	1860	if (!c) c = '?';
emh203	0:6b1e6c9e48ba	1861	#endif
emh203	0:6b1e6c9e48ba	1862	*p++ = c;
emh203	0:6b1e6c9e48ba	1863	}
emh203	0:6b1e6c9e48ba	1864	if (dir[8] != ' ') { /* Copy name extension */
emh203	0:6b1e6c9e48ba	1865	*p++ = '.';
emh203	0:6b1e6c9e48ba	1866	for (i = 8; i < 11; i++) {
emh203	0:6b1e6c9e48ba	1867	c = dir[i];
emh203	0:6b1e6c9e48ba	1868	if (c == ' ') break;
emh203	0:6b1e6c9e48ba	1869	if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
emh203	0:6b1e6c9e48ba	1870	#if _LFN_UNICODE
emh203	0:6b1e6c9e48ba	1871	if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i+1]))
emh203	0:6b1e6c9e48ba	1872	c = (c << 8) \| dir[++i];
emh203	0:6b1e6c9e48ba	1873	c = ff_convert(c, 1);
emh203	0:6b1e6c9e48ba	1874	if (!c) c = '?';
emh203	0:6b1e6c9e48ba	1875	#endif
emh203	0:6b1e6c9e48ba	1876	*p++ = c;
emh203	0:6b1e6c9e48ba	1877	}
emh203	0:6b1e6c9e48ba	1878	}
emh203	0:6b1e6c9e48ba	1879	fno->fattrib = dir[DIR_Attr]; /* Attribute */
emh203	0:6b1e6c9e48ba	1880	fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
emh203	0:6b1e6c9e48ba	1881	fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
emh203	0:6b1e6c9e48ba	1882	fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
emh203	0:6b1e6c9e48ba	1883	}
emh203	0:6b1e6c9e48ba	1884	p = 0; / Terminate SFN str by a \0 */
emh203	0:6b1e6c9e48ba	1885
emh203	0:6b1e6c9e48ba	1886	#if _USE_LFN
emh203	0:6b1e6c9e48ba	1887	if (fno->lfname && fno->lfsize) {
emh203	0:6b1e6c9e48ba	1888	TCHAR *tp = fno->lfname;
emh203	0:6b1e6c9e48ba	1889	WCHAR w, *lfn;
emh203	0:6b1e6c9e48ba	1890
emh203	0:6b1e6c9e48ba	1891	i = 0;
emh203	0:6b1e6c9e48ba	1892	if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
emh203	0:6b1e6c9e48ba	1893	lfn = dj->lfn;
emh203	0:6b1e6c9e48ba	1894	while ((w = lfn++) != 0) { / Get an LFN char */
emh203	0:6b1e6c9e48ba	1895	#if !_LFN_UNICODE
emh203	0:6b1e6c9e48ba	1896	w = ff_convert(w, 0); /* Unicode -> OEM conversion */
emh203	0:6b1e6c9e48ba	1897	if (!w) { i = 0; break; } /* Could not convert, no LFN */
emh203	0:6b1e6c9e48ba	1898	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
emh203	0:6b1e6c9e48ba	1899	tp[i++] = (TCHAR)(w >> 8);
emh203	0:6b1e6c9e48ba	1900	#endif
emh203	0:6b1e6c9e48ba	1901	if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overflow, no LFN */
emh203	0:6b1e6c9e48ba	1902	tp[i++] = (TCHAR)w;
emh203	0:6b1e6c9e48ba	1903	}
emh203	0:6b1e6c9e48ba	1904	}
emh203	0:6b1e6c9e48ba	1905	tp[i] = 0; /* Terminate the LFN str by a \0 */
emh203	0:6b1e6c9e48ba	1906	}
emh203	0:6b1e6c9e48ba	1907	#endif
emh203	0:6b1e6c9e48ba	1908	}
emh203	0:6b1e6c9e48ba	1909	#endif /* _FS_MINIMIZE <= 1 */
emh203	0:6b1e6c9e48ba	1910
emh203	0:6b1e6c9e48ba	1911
emh203	0:6b1e6c9e48ba	1912
emh203	0:6b1e6c9e48ba	1913
emh203	0:6b1e6c9e48ba	1914	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1915	/* Follow a file path */
emh203	0:6b1e6c9e48ba	1916	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1917
emh203	0:6b1e6c9e48ba	1918	static
emh203	0:6b1e6c9e48ba	1919	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
emh203	0:6b1e6c9e48ba	1920	eDIR dj, / Directory object to return last directory and found object */
emh203	0:6b1e6c9e48ba	1921	const TCHAR path / Full-path string to find a file or directory */
emh203	0:6b1e6c9e48ba	1922	)
emh203	0:6b1e6c9e48ba	1923	{
emh203	0:6b1e6c9e48ba	1924	FRESULT res;
emh203	0:6b1e6c9e48ba	1925	BYTE *dir, ns;
emh203	0:6b1e6c9e48ba	1926
emh203	0:6b1e6c9e48ba	1927
emh203	0:6b1e6c9e48ba	1928	#if _FS_RPATH
emh203	0:6b1e6c9e48ba	1929	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
emh203	0:6b1e6c9e48ba	1930	path++; dj->sclust = 0; /* Strip it and start from the root dir */
emh203	0:6b1e6c9e48ba	1931	} else { /* No heading separator */
emh203	0:6b1e6c9e48ba	1932	dj->sclust = dj->fs->cdir; /* Start from the current dir */
emh203	0:6b1e6c9e48ba	1933	}
emh203	0:6b1e6c9e48ba	1934	#else
emh203	0:6b1e6c9e48ba	1935	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
emh203	0:6b1e6c9e48ba	1936	path++;
emh203	0:6b1e6c9e48ba	1937	dj->sclust = 0; /* Start from the root dir */
emh203	0:6b1e6c9e48ba	1938	#endif
emh203	0:6b1e6c9e48ba	1939
emh203	0:6b1e6c9e48ba	1940	if ((UINT)path < ' ') { / Nul path means the start directory itself */
emh203	0:6b1e6c9e48ba	1941	res = dir_sdi(dj, 0);
emh203	0:6b1e6c9e48ba	1942	dj->dir = 0;
emh203	0:6b1e6c9e48ba	1943
emh203	0:6b1e6c9e48ba	1944	} else { /* Follow path */
emh203	0:6b1e6c9e48ba	1945	for (;;) {
emh203	0:6b1e6c9e48ba	1946	res = create_name(dj, &path); /* Get a segment */
emh203	0:6b1e6c9e48ba	1947	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	1948	res = dir_find(dj); /* Find it */
emh203	0:6b1e6c9e48ba	1949	ns = *(dj->fn+NS);
emh203	0:6b1e6c9e48ba	1950	if (res != FR_OK) { /* Failed to find the object */
emh203	0:6b1e6c9e48ba	1951	if (res != FR_NO_FILE) break; /* Abort if any hard error occured */
emh203	0:6b1e6c9e48ba	1952	/* Object not found */
emh203	0:6b1e6c9e48ba	1953	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exit */
emh203	0:6b1e6c9e48ba	1954	dj->sclust = 0; dj->dir = 0; /* It is the root dir */
emh203	0:6b1e6c9e48ba	1955	res = FR_OK;
emh203	0:6b1e6c9e48ba	1956	if (!(ns & NS_LAST)) continue;
emh203	0:6b1e6c9e48ba	1957	} else { /* Could not find the object */
emh203	0:6b1e6c9e48ba	1958	if (!(ns & NS_LAST)) res = FR_NO_PATH;
emh203	0:6b1e6c9e48ba	1959	}
emh203	0:6b1e6c9e48ba	1960	break;
emh203	0:6b1e6c9e48ba	1961	}
emh203	0:6b1e6c9e48ba	1962	if (ns & NS_LAST) break; /* Last segment match. Function completed. */
emh203	0:6b1e6c9e48ba	1963	dir = dj->dir; /* There is next segment. Follow the sub directory */
emh203	0:6b1e6c9e48ba	1964	if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
emh203	0:6b1e6c9e48ba	1965	res = FR_NO_PATH; break;
emh203	0:6b1e6c9e48ba	1966	}
emh203	0:6b1e6c9e48ba	1967	dj->sclust = LD_CLUST(dir);
emh203	0:6b1e6c9e48ba	1968	}
emh203	0:6b1e6c9e48ba	1969	}
emh203	0:6b1e6c9e48ba	1970
emh203	0:6b1e6c9e48ba	1971	return res;
emh203	0:6b1e6c9e48ba	1972	}
emh203	0:6b1e6c9e48ba	1973
emh203	0:6b1e6c9e48ba	1974
emh203	0:6b1e6c9e48ba	1975
emh203	0:6b1e6c9e48ba	1976
emh203	0:6b1e6c9e48ba	1977	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1978	/* Load a sector and check if it is an FAT Volume Boot Record */
emh203	0:6b1e6c9e48ba	1979	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	1980
emh203	0:6b1e6c9e48ba	1981	static
emh203	0:6b1e6c9e48ba	1982	BYTE check_fs ( /* 0:FAT-VBR, 1:Valid BR but not FAT, 2:Not a BR, 3:Disk error */
emh203	0:6b1e6c9e48ba	1983	FATFS fs, / File system object */
emh203	0:6b1e6c9e48ba	1984	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
emh203	0:6b1e6c9e48ba	1985	)
emh203	0:6b1e6c9e48ba	1986	{
emh203	0:6b1e6c9e48ba	1987	if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK) /* Load boot record */
emh203	0:6b1e6c9e48ba	1988	return 3;
emh203	0:6b1e6c9e48ba	1989	if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
emh203	0:6b1e6c9e48ba	1990	return 2;
emh203	0:6b1e6c9e48ba	1991
emh203	0:6b1e6c9e48ba	1992	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
emh203	0:6b1e6c9e48ba	1993	return 0;
emh203	0:6b1e6c9e48ba	1994	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
emh203	0:6b1e6c9e48ba	1995	return 0;
emh203	0:6b1e6c9e48ba	1996
emh203	0:6b1e6c9e48ba	1997	return 1;
emh203	0:6b1e6c9e48ba	1998	}
emh203	0:6b1e6c9e48ba	1999
emh203	0:6b1e6c9e48ba	2000
emh203	0:6b1e6c9e48ba	2001
emh203	0:6b1e6c9e48ba	2002
emh203	0:6b1e6c9e48ba	2003	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2004	/* Check if the file system object is valid or not */
emh203	0:6b1e6c9e48ba	2005	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2006
emh203	0:6b1e6c9e48ba	2007	static
emh203	0:6b1e6c9e48ba	2008	FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occurred */
emh203	0:6b1e6c9e48ba	2009	const TCHAR *path, / Pointer to pointer to the path name (drive number) */
emh203	0:6b1e6c9e48ba	2010	FATFS *rfs, / Pointer to pointer to the found file system object */
emh203	0:6b1e6c9e48ba	2011	BYTE chk_wp /* !=0: Check media write protection for write access */
emh203	0:6b1e6c9e48ba	2012	)
emh203	0:6b1e6c9e48ba	2013	{
emh203	0:6b1e6c9e48ba	2014	BYTE fmt, b, pi, *tbl;
emh203	0:6b1e6c9e48ba	2015	UINT vol;
emh203	0:6b1e6c9e48ba	2016	DSTATUS stat;
emh203	0:6b1e6c9e48ba	2017	DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
emh203	0:6b1e6c9e48ba	2018	WORD nrsv;
emh203	0:6b1e6c9e48ba	2019	const TCHAR p = path;
emh203	0:6b1e6c9e48ba	2020	FATFS *fs;
emh203	0:6b1e6c9e48ba	2021
emh203	0:6b1e6c9e48ba	2022	/* Get logical drive number from the path name */
emh203	0:6b1e6c9e48ba	2023	vol = p[0] - '0'; /* Is there a drive number? */
emh203	0:6b1e6c9e48ba	2024	if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */
emh203	0:6b1e6c9e48ba	2025	p += 2; path = p; / Return pointer to the path name */
emh203	0:6b1e6c9e48ba	2026	} else { /* No drive number is given */
emh203	0:6b1e6c9e48ba	2027	#if _FS_RPATH
emh203	0:6b1e6c9e48ba	2028	vol = CurrVol; /* Use current drive */
emh203	0:6b1e6c9e48ba	2029	#else
emh203	0:6b1e6c9e48ba	2030	vol = 0; /* Use drive 0 */
emh203	0:6b1e6c9e48ba	2031	#endif
emh203	0:6b1e6c9e48ba	2032	}
emh203	0:6b1e6c9e48ba	2033
emh203	0:6b1e6c9e48ba	2034	/* Check if the file system object is valid or not */
emh203	0:6b1e6c9e48ba	2035	if (vol >= _VOLUMES) /* Is the drive number valid? */
emh203	0:6b1e6c9e48ba	2036	return FR_INVALID_DRIVE;
emh203	0:6b1e6c9e48ba	2037	rfs = fs = FatFs[vol]; / Return pointer to the corresponding file system object */
emh203	0:6b1e6c9e48ba	2038	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
emh203	0:6b1e6c9e48ba	2039
emh203	0:6b1e6c9e48ba	2040	ENTER_FF(fs); /* Lock file system */
emh203	0:6b1e6c9e48ba	2041
emh203	0:6b1e6c9e48ba	2042	if (fs->fs_type) { /* If the logical drive has been mounted */
emh203	0:6b1e6c9e48ba	2043	stat = disk_status(fs->drv);
emh203	0:6b1e6c9e48ba	2044	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */
emh203	0:6b1e6c9e48ba	2045	if (!_FS_READONLY && chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */
emh203	0:6b1e6c9e48ba	2046	return FR_WRITE_PROTECTED;
emh203	0:6b1e6c9e48ba	2047	return FR_OK; /* The file system object is valid */
emh203	0:6b1e6c9e48ba	2048	}
emh203	0:6b1e6c9e48ba	2049	}
emh203	0:6b1e6c9e48ba	2050
emh203	0:6b1e6c9e48ba	2051	/* The file system object is not valid. */
emh203	0:6b1e6c9e48ba	2052	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
emh203	0:6b1e6c9e48ba	2053
emh203	0:6b1e6c9e48ba	2054	fs->fs_type = 0; /* Clear the file system object */
emh203	0:6b1e6c9e48ba	2055	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
emh203	0:6b1e6c9e48ba	2056	stat = disk_initialize(fs->drv); /* Initialize low level disk I/O layer */
emh203	0:6b1e6c9e48ba	2057	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
emh203	0:6b1e6c9e48ba	2058	return FR_NOT_READY; /* Failed to initialize due to no media or hard error */
emh203	0:6b1e6c9e48ba	2059	if (!_FS_READONLY && chk_wp && (stat & STA_PROTECT)) /* Check disk write protection if needed */
emh203	0:6b1e6c9e48ba	2060	return FR_WRITE_PROTECTED;
emh203	0:6b1e6c9e48ba	2061	#if _MAX_SS != 512 /* Get disk sector size (variable sector size cfg only) */
emh203	0:6b1e6c9e48ba	2062	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
emh203	0:6b1e6c9e48ba	2063	return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	2064	#endif
emh203	0:6b1e6c9e48ba	2065	/* Search FAT partition on the drive. Supports only generic partitionings, FDISK and SFD. */
emh203	0:6b1e6c9e48ba	2066	fmt = check_fs(fs, bsect = 0); /* Load sector 0 and check if it is an FAT-VBR (in SFD) */
emh203	0:6b1e6c9e48ba	2067	if (LD2PT(vol) && !fmt) fmt = 1; /* Force non-SFD if the volume is forced partition */
emh203	0:6b1e6c9e48ba	2068	if (fmt == 1) { /* Not an FAT-VBR, the physical drive can be partitioned */
emh203	0:6b1e6c9e48ba	2069	/* Check the partition listed in the partition table */
emh203	0:6b1e6c9e48ba	2070	pi = LD2PT(vol);
emh203	0:6b1e6c9e48ba	2071	if (pi) pi--;
emh203	0:6b1e6c9e48ba	2072	tbl = &fs->win[MBR_Table + pi * SZ_PTE];/* Partition table */
emh203	0:6b1e6c9e48ba	2073	if (tbl[4]) { /* Is the partition existing? */
emh203	0:6b1e6c9e48ba	2074	bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
emh203	0:6b1e6c9e48ba	2075	fmt = check_fs(fs, bsect); /* Check the partition */
emh203	0:6b1e6c9e48ba	2076	}
emh203	0:6b1e6c9e48ba	2077	}
emh203	0:6b1e6c9e48ba	2078	if (fmt == 3) return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	2079	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
emh203	0:6b1e6c9e48ba	2080
emh203	0:6b1e6c9e48ba	2081	/* An FAT volume is found. Following code initializes the file system object */
emh203	0:6b1e6c9e48ba	2082
emh203	0:6b1e6c9e48ba	2083	if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
emh203	0:6b1e6c9e48ba	2084	return FR_NO_FILESYSTEM;
emh203	0:6b1e6c9e48ba	2085
emh203	0:6b1e6c9e48ba	2086	fasize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */
emh203	0:6b1e6c9e48ba	2087	if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32);
emh203	0:6b1e6c9e48ba	2088	fs->fsize = fasize;
emh203	0:6b1e6c9e48ba	2089
emh203	0:6b1e6c9e48ba	2090	fs->n_fats = b = fs->win[BPB_NumFATs]; /* Number of FAT copies */
emh203	0:6b1e6c9e48ba	2091	if (b != 1 && b != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
emh203	0:6b1e6c9e48ba	2092	fasize = b; / Number of sectors for FAT area */
emh203	0:6b1e6c9e48ba	2093
emh203	0:6b1e6c9e48ba	2094	fs->csize = b = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
emh203	0:6b1e6c9e48ba	2095	if (!b \|\| (b & (b - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
emh203	0:6b1e6c9e48ba	2096
emh203	0:6b1e6c9e48ba	2097	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Number of root directory entries */
emh203	0:6b1e6c9e48ba	2098	if (fs->n_rootdir % (SS(fs) / SZ_DIR)) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be sector aligned) */
emh203	0:6b1e6c9e48ba	2099
emh203	0:6b1e6c9e48ba	2100	tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */
emh203	0:6b1e6c9e48ba	2101	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
emh203	0:6b1e6c9e48ba	2102
emh203	0:6b1e6c9e48ba	2103	nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt); /* Number of reserved sectors */
emh203	0:6b1e6c9e48ba	2104	if (!nrsv) return FR_NO_FILESYSTEM; /* (BPB_RsvdSecCnt must not be 0) */
emh203	0:6b1e6c9e48ba	2105
emh203	0:6b1e6c9e48ba	2106	/* Determine the FAT sub type */
emh203	0:6b1e6c9e48ba	2107	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR); /* RSV+FAT+DIR */
emh203	0:6b1e6c9e48ba	2108	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
emh203	0:6b1e6c9e48ba	2109	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
emh203	0:6b1e6c9e48ba	2110	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
emh203	0:6b1e6c9e48ba	2111	fmt = FS_FAT12;
emh203	0:6b1e6c9e48ba	2112	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
emh203	0:6b1e6c9e48ba	2113	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
emh203	0:6b1e6c9e48ba	2114
emh203	0:6b1e6c9e48ba	2115	/* Boundaries and Limits */
emh203	0:6b1e6c9e48ba	2116	fs->n_fatent = nclst + 2; /* Number of FAT entries */
emh203	0:6b1e6c9e48ba	2117	fs->database = bsect + sysect; /* Data start sector */
emh203	0:6b1e6c9e48ba	2118	fs->fatbase = bsect + nrsv; /* FAT start sector */
emh203	0:6b1e6c9e48ba	2119	if (fmt == FS_FAT32) {
emh203	0:6b1e6c9e48ba	2120	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
emh203	0:6b1e6c9e48ba	2121	fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
emh203	0:6b1e6c9e48ba	2122	szbfat = fs->n_fatent * 4; /* (Required FAT size) */
emh203	0:6b1e6c9e48ba	2123	} else {
emh203	0:6b1e6c9e48ba	2124	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
emh203	0:6b1e6c9e48ba	2125	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
emh203	0:6b1e6c9e48ba	2126	szbfat = (fmt == FS_FAT16) ? /* (Required FAT size) */
emh203	0:6b1e6c9e48ba	2127	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
emh203	0:6b1e6c9e48ba	2128	}
emh203	0:6b1e6c9e48ba	2129	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than required) */
emh203	0:6b1e6c9e48ba	2130	return FR_NO_FILESYSTEM;
emh203	0:6b1e6c9e48ba	2131
emh203	0:6b1e6c9e48ba	2132	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	2133	/* Initialize cluster allocation information */
emh203	0:6b1e6c9e48ba	2134	fs->free_clust = 0xFFFFFFFF;
emh203	0:6b1e6c9e48ba	2135	fs->last_clust = 0;
emh203	0:6b1e6c9e48ba	2136
emh203	0:6b1e6c9e48ba	2137	/* Get fsinfo if available */
emh203	0:6b1e6c9e48ba	2138	if (fmt == FS_FAT32) {
emh203	0:6b1e6c9e48ba	2139	fs->fsi_flag = 0;
emh203	0:6b1e6c9e48ba	2140	fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
emh203	0:6b1e6c9e48ba	2141	if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK &&
emh203	0:6b1e6c9e48ba	2142	LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
emh203	0:6b1e6c9e48ba	2143	LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
emh203	0:6b1e6c9e48ba	2144	LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
emh203	0:6b1e6c9e48ba	2145	fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
emh203	0:6b1e6c9e48ba	2146	fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
emh203	0:6b1e6c9e48ba	2147	}
emh203	0:6b1e6c9e48ba	2148	}
emh203	0:6b1e6c9e48ba	2149	#endif
emh203	0:6b1e6c9e48ba	2150	fs->fs_type = fmt; /* FAT sub-type */
emh203	0:6b1e6c9e48ba	2151	fs->id = ++Fsid; /* File system mount ID */
emh203	0:6b1e6c9e48ba	2152	fs->winsect = 0; /* Invalidate sector cache */
emh203	0:6b1e6c9e48ba	2153	fs->wflag = 0;
emh203	0:6b1e6c9e48ba	2154	#if _FS_RPATH
emh203	0:6b1e6c9e48ba	2155	fs->cdir = 0; /* Current directory (root dir) */
emh203	0:6b1e6c9e48ba	2156	#endif
emh203	0:6b1e6c9e48ba	2157	#if _FS_SHARE /* Clear file lock semaphores */
emh203	0:6b1e6c9e48ba	2158	clear_lock(fs);
emh203	0:6b1e6c9e48ba	2159	#endif
emh203	0:6b1e6c9e48ba	2160
emh203	0:6b1e6c9e48ba	2161	return FR_OK;
emh203	0:6b1e6c9e48ba	2162	}
emh203	0:6b1e6c9e48ba	2163
emh203	0:6b1e6c9e48ba	2164
emh203	0:6b1e6c9e48ba	2165
emh203	0:6b1e6c9e48ba	2166
emh203	0:6b1e6c9e48ba	2167	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2168	/* Check if the file/dir object is valid or not */
emh203	0:6b1e6c9e48ba	2169	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2170
emh203	0:6b1e6c9e48ba	2171	static
emh203	0:6b1e6c9e48ba	2172	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
emh203	0:6b1e6c9e48ba	2173	FATFS fs, / Pointer to the file system object */
emh203	0:6b1e6c9e48ba	2174	WORD id /* Member id of the target object to be checked */
emh203	0:6b1e6c9e48ba	2175	)
emh203	0:6b1e6c9e48ba	2176	{
emh203	0:6b1e6c9e48ba	2177	if (!fs \|\| !fs->fs_type \|\| fs->id != id)
emh203	0:6b1e6c9e48ba	2178	return FR_INVALID_OBJECT;
emh203	0:6b1e6c9e48ba	2179
emh203	0:6b1e6c9e48ba	2180	ENTER_FF(fs); /* Lock file system */
emh203	0:6b1e6c9e48ba	2181
emh203	0:6b1e6c9e48ba	2182	if (disk_status(fs->drv) & STA_NOINIT)
emh203	0:6b1e6c9e48ba	2183	return FR_NOT_READY;
emh203	0:6b1e6c9e48ba	2184
emh203	0:6b1e6c9e48ba	2185	return FR_OK;
emh203	0:6b1e6c9e48ba	2186	}
emh203	0:6b1e6c9e48ba	2187
emh203	0:6b1e6c9e48ba	2188
emh203	0:6b1e6c9e48ba	2189
emh203	0:6b1e6c9e48ba	2190
emh203	0:6b1e6c9e48ba	2191	/*--------------------------------------------------------------------------
emh203	0:6b1e6c9e48ba	2192
emh203	0:6b1e6c9e48ba	2193	Public Functions
emh203	0:6b1e6c9e48ba	2194
emh203	0:6b1e6c9e48ba	2195	--------------------------------------------------------------------------*/
emh203	0:6b1e6c9e48ba	2196
emh203	0:6b1e6c9e48ba	2197
emh203	0:6b1e6c9e48ba	2198
emh203	0:6b1e6c9e48ba	2199	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2200	/* Mount/Unmount a Logical Drive */
emh203	0:6b1e6c9e48ba	2201	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2202
emh203	0:6b1e6c9e48ba	2203	FRESULT f_mount (
emh203	0:6b1e6c9e48ba	2204	BYTE vol, /* Logical drive number to be mounted/unmounted */
emh203	0:6b1e6c9e48ba	2205	FATFS fs / Pointer to new file system object (NULL for unmount)*/
emh203	0:6b1e6c9e48ba	2206	)
emh203	0:6b1e6c9e48ba	2207	{
emh203	0:6b1e6c9e48ba	2208	FATFS *rfs;
emh203	0:6b1e6c9e48ba	2209
emh203	0:6b1e6c9e48ba	2210
emh203	0:6b1e6c9e48ba	2211	if (vol >= _VOLUMES) /* Check if the drive number is valid */
emh203	0:6b1e6c9e48ba	2212	return FR_INVALID_DRIVE;
emh203	0:6b1e6c9e48ba	2213	rfs = FatFs[vol]; /* Get current fs object */
emh203	0:6b1e6c9e48ba	2214
emh203	0:6b1e6c9e48ba	2215	if (rfs) {
emh203	0:6b1e6c9e48ba	2216	#if _FS_SHARE
emh203	0:6b1e6c9e48ba	2217	clear_lock(rfs);
emh203	0:6b1e6c9e48ba	2218	#endif
emh203	0:6b1e6c9e48ba	2219	#if _FS_REENTRANT /* Discard sync object of the current volume */
emh203	0:6b1e6c9e48ba	2220	if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
emh203	0:6b1e6c9e48ba	2221	#endif
emh203	0:6b1e6c9e48ba	2222	rfs->fs_type = 0; /* Clear old fs object */
emh203	0:6b1e6c9e48ba	2223	}
emh203	0:6b1e6c9e48ba	2224
emh203	0:6b1e6c9e48ba	2225	if (fs) {
emh203	0:6b1e6c9e48ba	2226	fs->fs_type = 0; /* Clear new fs object */
emh203	0:6b1e6c9e48ba	2227	#if _FS_REENTRANT /* Create sync object for the new volume */
emh203	0:6b1e6c9e48ba	2228	if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
emh203	0:6b1e6c9e48ba	2229	#endif
emh203	0:6b1e6c9e48ba	2230	}
emh203	0:6b1e6c9e48ba	2231	FatFs[vol] = fs; /* Register new fs object */
emh203	0:6b1e6c9e48ba	2232
emh203	0:6b1e6c9e48ba	2233	return FR_OK;
emh203	0:6b1e6c9e48ba	2234	}
emh203	0:6b1e6c9e48ba	2235
emh203	0:6b1e6c9e48ba	2236
emh203	0:6b1e6c9e48ba	2237
emh203	0:6b1e6c9e48ba	2238
emh203	0:6b1e6c9e48ba	2239	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2240	/* Open or Create a File */
emh203	0:6b1e6c9e48ba	2241	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2242
emh203	0:6b1e6c9e48ba	2243	FRESULT f_open (
emh203	0:6b1e6c9e48ba	2244	FIL fp, / Pointer to the blank file object */
emh203	0:6b1e6c9e48ba	2245	const TCHAR path, / Pointer to the file name */
emh203	0:6b1e6c9e48ba	2246	BYTE mode /* Access mode and file open mode flags */
emh203	0:6b1e6c9e48ba	2247	)
emh203	0:6b1e6c9e48ba	2248	{
emh203	0:6b1e6c9e48ba	2249	FRESULT res;
emh203	0:6b1e6c9e48ba	2250	eDIR dj;
emh203	0:6b1e6c9e48ba	2251	BYTE *dir;
emh203	0:6b1e6c9e48ba	2252	DEF_NAMEBUF;
emh203	0:6b1e6c9e48ba	2253
emh203	0:6b1e6c9e48ba	2254
emh203	0:6b1e6c9e48ba	2255	fp->fs = 0; /* Clear file object */
emh203	0:6b1e6c9e48ba	2256
emh203	0:6b1e6c9e48ba	2257	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	2258	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
emh203	0:6b1e6c9e48ba	2259	res = chk_mounted(&path, &dj.fs, (BYTE)(mode & ~FA_READ));
emh203	0:6b1e6c9e48ba	2260	#else
emh203	0:6b1e6c9e48ba	2261	mode &= FA_READ;
emh203	0:6b1e6c9e48ba	2262	res = chk_mounted(&path, &dj.fs, 0);
emh203	0:6b1e6c9e48ba	2263	#endif
emh203	0:6b1e6c9e48ba	2264	INIT_BUF(dj);
emh203	0:6b1e6c9e48ba	2265	if (res == FR_OK)
emh203	0:6b1e6c9e48ba	2266	res = follow_path(&dj, path); /* Follow the file path */
emh203	0:6b1e6c9e48ba	2267	dir = dj.dir;
emh203	0:6b1e6c9e48ba	2268
emh203	0:6b1e6c9e48ba	2269	#if !_FS_READONLY /* R/W configuration */
emh203	0:6b1e6c9e48ba	2270	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	2271	if (!dir) /* Current dir itself */
emh203	0:6b1e6c9e48ba	2272	res = FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	2273	#if _FS_SHARE
emh203	0:6b1e6c9e48ba	2274	else
emh203	0:6b1e6c9e48ba	2275	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
emh203	0:6b1e6c9e48ba	2276	#endif
emh203	0:6b1e6c9e48ba	2277	}
emh203	0:6b1e6c9e48ba	2278	/* Create or Open a file */
emh203	0:6b1e6c9e48ba	2279	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
emh203	0:6b1e6c9e48ba	2280	DWORD dw, cl;
emh203	0:6b1e6c9e48ba	2281
emh203	0:6b1e6c9e48ba	2282	if (res != FR_OK) { /* No file, create new */
emh203	0:6b1e6c9e48ba	2283	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
emh203	0:6b1e6c9e48ba	2284	#if _FS_SHARE
emh203	0:6b1e6c9e48ba	2285	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
emh203	0:6b1e6c9e48ba	2286	#else
emh203	0:6b1e6c9e48ba	2287	res = dir_register(&dj);
emh203	0:6b1e6c9e48ba	2288	#endif
emh203	0:6b1e6c9e48ba	2289	mode \|= FA_CREATE_ALWAYS; /* File is created */
emh203	0:6b1e6c9e48ba	2290	dir = dj.dir; /* New entry */
emh203	0:6b1e6c9e48ba	2291	}
emh203	0:6b1e6c9e48ba	2292	else { /* Any object is already existing */
emh203	0:6b1e6c9e48ba	2293	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */
emh203	0:6b1e6c9e48ba	2294	res = FR_DENIED;
emh203	0:6b1e6c9e48ba	2295	} else {
emh203	0:6b1e6c9e48ba	2296	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
emh203	0:6b1e6c9e48ba	2297	res = FR_EXIST;
emh203	0:6b1e6c9e48ba	2298	}
emh203	0:6b1e6c9e48ba	2299	}
emh203	0:6b1e6c9e48ba	2300	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
emh203	0:6b1e6c9e48ba	2301	dw = get_fattime(); /* Created time */
emh203	0:6b1e6c9e48ba	2302	ST_DWORD(dir+DIR_CrtTime, dw);
emh203	0:6b1e6c9e48ba	2303	dir[DIR_Attr] = 0; /* Reset attribute */
emh203	0:6b1e6c9e48ba	2304	ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
emh203	0:6b1e6c9e48ba	2305	cl = LD_CLUST(dir); /* Get start cluster */
emh203	0:6b1e6c9e48ba	2306	ST_CLUST(dir, 0); /* cluster = 0 */
emh203	0:6b1e6c9e48ba	2307	dj.fs->wflag = 1;
emh203	0:6b1e6c9e48ba	2308	if (cl) { /* Remove the cluster chain if exist */
emh203	0:6b1e6c9e48ba	2309	dw = dj.fs->winsect;
emh203	0:6b1e6c9e48ba	2310	res = remove_chain(dj.fs, cl);
emh203	0:6b1e6c9e48ba	2311	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	2312	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
emh203	0:6b1e6c9e48ba	2313	res = move_window(dj.fs, dw);
emh203	0:6b1e6c9e48ba	2314	}
emh203	0:6b1e6c9e48ba	2315	}
emh203	0:6b1e6c9e48ba	2316	}
emh203	0:6b1e6c9e48ba	2317	}
emh203	0:6b1e6c9e48ba	2318	else { /* Open an existing file */
emh203	0:6b1e6c9e48ba	2319	if (res == FR_OK) { /* Follow succeeded */
emh203	0:6b1e6c9e48ba	2320	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
emh203	0:6b1e6c9e48ba	2321	res = FR_NO_FILE;
emh203	0:6b1e6c9e48ba	2322	} else {
emh203	0:6b1e6c9e48ba	2323	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
emh203	0:6b1e6c9e48ba	2324	res = FR_DENIED;
emh203	0:6b1e6c9e48ba	2325	}
emh203	0:6b1e6c9e48ba	2326	}
emh203	0:6b1e6c9e48ba	2327	}
emh203	0:6b1e6c9e48ba	2328	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	2329	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
emh203	0:6b1e6c9e48ba	2330	mode \|= FA__WRITTEN;
emh203	0:6b1e6c9e48ba	2331	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
emh203	0:6b1e6c9e48ba	2332	fp->dir_ptr = dir;
emh203	0:6b1e6c9e48ba	2333	#if _FS_SHARE
emh203	0:6b1e6c9e48ba	2334	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
emh203	0:6b1e6c9e48ba	2335	if (!fp->lockid) res = FR_INT_ERR;
emh203	0:6b1e6c9e48ba	2336	#endif
emh203	0:6b1e6c9e48ba	2337	}
emh203	0:6b1e6c9e48ba	2338
emh203	0:6b1e6c9e48ba	2339	#else /* R/O configuration */
emh203	0:6b1e6c9e48ba	2340	if (res == FR_OK) { /* Follow succeeded */
emh203	0:6b1e6c9e48ba	2341	if (!dir) { /* Current dir itself */
emh203	0:6b1e6c9e48ba	2342	res = FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	2343	} else {
emh203	0:6b1e6c9e48ba	2344	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
emh203	0:6b1e6c9e48ba	2345	res = FR_NO_FILE;
emh203	0:6b1e6c9e48ba	2346	}
emh203	0:6b1e6c9e48ba	2347	}
emh203	0:6b1e6c9e48ba	2348	#endif
emh203	0:6b1e6c9e48ba	2349	FREE_BUF();
emh203	0:6b1e6c9e48ba	2350
emh203	0:6b1e6c9e48ba	2351	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	2352	fp->flag = mode; /* File access mode */
emh203	0:6b1e6c9e48ba	2353	fp->sclust = LD_CLUST(dir); /* File start cluster */
emh203	0:6b1e6c9e48ba	2354	fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
emh203	0:6b1e6c9e48ba	2355	fp->fptr = 0; /* File pointer */
emh203	0:6b1e6c9e48ba	2356	fp->dsect = 0;
emh203	0:6b1e6c9e48ba	2357	#if _USE_FASTSEEK
emh203	0:6b1e6c9e48ba	2358	fp->cltbl = 0; /* Normal seek mode */
emh203	0:6b1e6c9e48ba	2359	#endif
emh203	0:6b1e6c9e48ba	2360	fp->fs = dj.fs; fp->id = dj.fs->id; /* Validate file object */
emh203	0:6b1e6c9e48ba	2361	}
emh203	0:6b1e6c9e48ba	2362
emh203	0:6b1e6c9e48ba	2363	LEAVE_FF(dj.fs, res);
emh203	0:6b1e6c9e48ba	2364	}
emh203	0:6b1e6c9e48ba	2365
emh203	0:6b1e6c9e48ba	2366
emh203	0:6b1e6c9e48ba	2367
emh203	0:6b1e6c9e48ba	2368
emh203	0:6b1e6c9e48ba	2369	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2370	/* Read File */
emh203	0:6b1e6c9e48ba	2371	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2372
emh203	0:6b1e6c9e48ba	2373	FRESULT f_read (
emh203	0:6b1e6c9e48ba	2374	FIL fp, / Pointer to the file object */
emh203	0:6b1e6c9e48ba	2375	void buff, / Pointer to data buffer */
emh203	0:6b1e6c9e48ba	2376	UINT btr, /* Number of bytes to read */
emh203	0:6b1e6c9e48ba	2377	UINT br / Pointer to number of bytes read */
emh203	0:6b1e6c9e48ba	2378	)
emh203	0:6b1e6c9e48ba	2379	{
emh203	0:6b1e6c9e48ba	2380	FRESULT res;
emh203	0:6b1e6c9e48ba	2381	DWORD clst, sect, remain;
emh203	0:6b1e6c9e48ba	2382	UINT rcnt, cc;
emh203	0:6b1e6c9e48ba	2383	BYTE csect, rbuff = (BYTE )buff;
emh203	0:6b1e6c9e48ba	2384
emh203	0:6b1e6c9e48ba	2385
emh203	0:6b1e6c9e48ba	2386	br = 0; / Initialize byte counter */
emh203	0:6b1e6c9e48ba	2387
emh203	0:6b1e6c9e48ba	2388	res = validate(fp->fs, fp->id); /* Check validity */
emh203	0:6b1e6c9e48ba	2389	if (res != FR_OK) LEAVE_FF(fp->fs, res);
emh203	0:6b1e6c9e48ba	2390	if (fp->flag & FA__ERROR) /* Aborted file? */
emh203	0:6b1e6c9e48ba	2391	LEAVE_FF(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	2392	if (!(fp->flag & FA_READ)) /* Check access mode */
emh203	0:6b1e6c9e48ba	2393	LEAVE_FF(fp->fs, FR_DENIED);
emh203	0:6b1e6c9e48ba	2394	remain = fp->fsize - fp->fptr;
emh203	0:6b1e6c9e48ba	2395	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
emh203	0:6b1e6c9e48ba	2396
emh203	0:6b1e6c9e48ba	2397	for ( ; btr; /* Repeat until all data read */
emh203	0:6b1e6c9e48ba	2398	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
emh203	0:6b1e6c9e48ba	2399	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
emh203	0:6b1e6c9e48ba	2400	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
emh203	0:6b1e6c9e48ba	2401	if (!csect) { /* On the cluster boundary? */
emh203	0:6b1e6c9e48ba	2402	if (fp->fptr == 0) { /* On the top of the file? */
emh203	0:6b1e6c9e48ba	2403	clst = fp->sclust; /* Follow from the origin */
emh203	0:6b1e6c9e48ba	2404	} else { /* Middle or end of the file */
emh203	0:6b1e6c9e48ba	2405	#if _USE_FASTSEEK
emh203	0:6b1e6c9e48ba	2406	if (fp->cltbl)
emh203	0:6b1e6c9e48ba	2407	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
emh203	0:6b1e6c9e48ba	2408	else
emh203	0:6b1e6c9e48ba	2409	#endif
emh203	0:6b1e6c9e48ba	2410	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
emh203	0:6b1e6c9e48ba	2411	}
emh203	0:6b1e6c9e48ba	2412	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	2413	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2414	fp->clust = clst; /* Update current cluster */
emh203	0:6b1e6c9e48ba	2415	}
emh203	0:6b1e6c9e48ba	2416	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
emh203	0:6b1e6c9e48ba	2417	if (!sect) ABORT(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	2418	sect += csect;
emh203	0:6b1e6c9e48ba	2419	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
emh203	0:6b1e6c9e48ba	2420	if (cc) { /* Read maximum contiguous sectors directly */
emh203	0:6b1e6c9e48ba	2421	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
emh203	0:6b1e6c9e48ba	2422	cc = fp->fs->csize - csect;
emh203	0:6b1e6c9e48ba	2423	if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK)
emh203	0:6b1e6c9e48ba	2424	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2425	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
emh203	0:6b1e6c9e48ba	2426	#if _FS_TINY
emh203	0:6b1e6c9e48ba	2427	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
emh203	0:6b1e6c9e48ba	2428	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
emh203	0:6b1e6c9e48ba	2429	#else
emh203	0:6b1e6c9e48ba	2430	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
emh203	0:6b1e6c9e48ba	2431	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
emh203	0:6b1e6c9e48ba	2432	#endif
emh203	0:6b1e6c9e48ba	2433	#endif
emh203	0:6b1e6c9e48ba	2434	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
emh203	0:6b1e6c9e48ba	2435	continue;
emh203	0:6b1e6c9e48ba	2436	}
emh203	0:6b1e6c9e48ba	2437	#if !_FS_TINY
emh203	0:6b1e6c9e48ba	2438	if (fp->dsect != sect) { /* Load data sector if not in cache */
emh203	0:6b1e6c9e48ba	2439	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	2440	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
emh203	0:6b1e6c9e48ba	2441	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
emh203	0:6b1e6c9e48ba	2442	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2443	fp->flag &= ~FA__DIRTY;
emh203	0:6b1e6c9e48ba	2444	}
emh203	0:6b1e6c9e48ba	2445	#endif
emh203	0:6b1e6c9e48ba	2446	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
emh203	0:6b1e6c9e48ba	2447	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2448	}
emh203	0:6b1e6c9e48ba	2449	#endif
emh203	0:6b1e6c9e48ba	2450	fp->dsect = sect;
emh203	0:6b1e6c9e48ba	2451	}
emh203	0:6b1e6c9e48ba	2452	rcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
emh203	0:6b1e6c9e48ba	2453	if (rcnt > btr) rcnt = btr;
emh203	0:6b1e6c9e48ba	2454	#if _FS_TINY
emh203	0:6b1e6c9e48ba	2455	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
emh203	0:6b1e6c9e48ba	2456	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2457	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
emh203	0:6b1e6c9e48ba	2458	#else
emh203	0:6b1e6c9e48ba	2459	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
emh203	0:6b1e6c9e48ba	2460	#endif
emh203	0:6b1e6c9e48ba	2461	}
emh203	0:6b1e6c9e48ba	2462
emh203	0:6b1e6c9e48ba	2463	LEAVE_FF(fp->fs, FR_OK);
emh203	0:6b1e6c9e48ba	2464	}
emh203	0:6b1e6c9e48ba	2465
emh203	0:6b1e6c9e48ba	2466
emh203	0:6b1e6c9e48ba	2467
emh203	0:6b1e6c9e48ba	2468
emh203	0:6b1e6c9e48ba	2469	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	2470	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2471	/* Write File */
emh203	0:6b1e6c9e48ba	2472	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2473
emh203	0:6b1e6c9e48ba	2474	FRESULT f_write (
emh203	0:6b1e6c9e48ba	2475	FIL fp, / Pointer to the file object */
emh203	0:6b1e6c9e48ba	2476	const void buff, / Pointer to the data to be written */
emh203	0:6b1e6c9e48ba	2477	UINT btw, /* Number of bytes to write */
emh203	0:6b1e6c9e48ba	2478	UINT bw / Pointer to number of bytes written */
emh203	0:6b1e6c9e48ba	2479	)
emh203	0:6b1e6c9e48ba	2480	{
emh203	0:6b1e6c9e48ba	2481	FRESULT res;
emh203	0:6b1e6c9e48ba	2482	DWORD clst, sect;
emh203	0:6b1e6c9e48ba	2483	UINT wcnt, cc;
emh203	0:6b1e6c9e48ba	2484	const BYTE wbuff = (BYTE )buff;
emh203	0:6b1e6c9e48ba	2485	BYTE csect;
emh203	0:6b1e6c9e48ba	2486
emh203	0:6b1e6c9e48ba	2487
emh203	0:6b1e6c9e48ba	2488	bw = 0; / Initialize byte counter */
emh203	0:6b1e6c9e48ba	2489
emh203	0:6b1e6c9e48ba	2490	res = validate(fp->fs, fp->id); /* Check validity */
emh203	0:6b1e6c9e48ba	2491	if (res != FR_OK) LEAVE_FF(fp->fs, res);
emh203	0:6b1e6c9e48ba	2492	if (fp->flag & FA__ERROR) /* Aborted file? */
emh203	0:6b1e6c9e48ba	2493	LEAVE_FF(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	2494	if (!(fp->flag & FA_WRITE)) /* Check access mode */
emh203	0:6b1e6c9e48ba	2495	LEAVE_FF(fp->fs, FR_DENIED);
emh203	0:6b1e6c9e48ba	2496	if ((DWORD)(fp->fsize + btw) < fp->fsize) btw = 0; /* File size cannot reach 4GB */
emh203	0:6b1e6c9e48ba	2497
emh203	0:6b1e6c9e48ba	2498	for ( ; btw; /* Repeat until all data written */
emh203	0:6b1e6c9e48ba	2499	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
emh203	0:6b1e6c9e48ba	2500	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
emh203	0:6b1e6c9e48ba	2501	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
emh203	0:6b1e6c9e48ba	2502	if (!csect) { /* On the cluster boundary? */
emh203	0:6b1e6c9e48ba	2503	if (fp->fptr == 0) { /* On the top of the file? */
emh203	0:6b1e6c9e48ba	2504	clst = fp->sclust; /* Follow from the origin */
emh203	0:6b1e6c9e48ba	2505	if (clst == 0) /* When no cluster is allocated, */
emh203	0:6b1e6c9e48ba	2506	fp->sclust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
emh203	0:6b1e6c9e48ba	2507	} else { /* Middle or end of the file */
emh203	0:6b1e6c9e48ba	2508	#if _USE_FASTSEEK
emh203	0:6b1e6c9e48ba	2509	if (fp->cltbl)
emh203	0:6b1e6c9e48ba	2510	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
emh203	0:6b1e6c9e48ba	2511	else
emh203	0:6b1e6c9e48ba	2512	#endif
emh203	0:6b1e6c9e48ba	2513	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
emh203	0:6b1e6c9e48ba	2514	}
emh203	0:6b1e6c9e48ba	2515	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
emh203	0:6b1e6c9e48ba	2516	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	2517	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2518	fp->clust = clst; /* Update current cluster */
emh203	0:6b1e6c9e48ba	2519	}
emh203	0:6b1e6c9e48ba	2520	#if _FS_TINY
emh203	0:6b1e6c9e48ba	2521	if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write-back sector cache */
emh203	0:6b1e6c9e48ba	2522	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2523	#else
emh203	0:6b1e6c9e48ba	2524	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
emh203	0:6b1e6c9e48ba	2525	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
emh203	0:6b1e6c9e48ba	2526	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2527	fp->flag &= ~FA__DIRTY;
emh203	0:6b1e6c9e48ba	2528	}
emh203	0:6b1e6c9e48ba	2529	#endif
emh203	0:6b1e6c9e48ba	2530	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
emh203	0:6b1e6c9e48ba	2531	if (!sect) ABORT(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	2532	sect += csect;
emh203	0:6b1e6c9e48ba	2533	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
emh203	0:6b1e6c9e48ba	2534	if (cc) { /* Write maximum contiguous sectors directly */
emh203	0:6b1e6c9e48ba	2535	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
emh203	0:6b1e6c9e48ba	2536	cc = fp->fs->csize - csect;
emh203	0:6b1e6c9e48ba	2537	if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK)
emh203	0:6b1e6c9e48ba	2538	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2539	#if _FS_TINY
emh203	0:6b1e6c9e48ba	2540	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
emh203	0:6b1e6c9e48ba	2541	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
emh203	0:6b1e6c9e48ba	2542	fp->fs->wflag = 0;
emh203	0:6b1e6c9e48ba	2543	}
emh203	0:6b1e6c9e48ba	2544	#else
emh203	0:6b1e6c9e48ba	2545	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
emh203	0:6b1e6c9e48ba	2546	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
emh203	0:6b1e6c9e48ba	2547	fp->flag &= ~FA__DIRTY;
emh203	0:6b1e6c9e48ba	2548	}
emh203	0:6b1e6c9e48ba	2549	#endif
emh203	0:6b1e6c9e48ba	2550	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
emh203	0:6b1e6c9e48ba	2551	continue;
emh203	0:6b1e6c9e48ba	2552	}
emh203	0:6b1e6c9e48ba	2553	#if _FS_TINY
emh203	0:6b1e6c9e48ba	2554	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
emh203	0:6b1e6c9e48ba	2555	if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2556	fp->fs->winsect = sect;
emh203	0:6b1e6c9e48ba	2557	}
emh203	0:6b1e6c9e48ba	2558	#else
emh203	0:6b1e6c9e48ba	2559	if (fp->dsect != sect) { /* Fill sector cache with file data */
emh203	0:6b1e6c9e48ba	2560	if (fp->fptr < fp->fsize &&
emh203	0:6b1e6c9e48ba	2561	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
emh203	0:6b1e6c9e48ba	2562	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2563	}
emh203	0:6b1e6c9e48ba	2564	#endif
emh203	0:6b1e6c9e48ba	2565	fp->dsect = sect;
emh203	0:6b1e6c9e48ba	2566	}
emh203	0:6b1e6c9e48ba	2567	wcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
emh203	0:6b1e6c9e48ba	2568	if (wcnt > btw) wcnt = btw;
emh203	0:6b1e6c9e48ba	2569	#if _FS_TINY
emh203	0:6b1e6c9e48ba	2570	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
emh203	0:6b1e6c9e48ba	2571	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2572	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
emh203	0:6b1e6c9e48ba	2573	fp->fs->wflag = 1;
emh203	0:6b1e6c9e48ba	2574	#else
emh203	0:6b1e6c9e48ba	2575	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
emh203	0:6b1e6c9e48ba	2576	fp->flag \|= FA__DIRTY;
emh203	0:6b1e6c9e48ba	2577	#endif
emh203	0:6b1e6c9e48ba	2578	}
emh203	0:6b1e6c9e48ba	2579
emh203	0:6b1e6c9e48ba	2580	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
emh203	0:6b1e6c9e48ba	2581	fp->flag \|= FA__WRITTEN; /* Set file change flag */
emh203	0:6b1e6c9e48ba	2582
emh203	0:6b1e6c9e48ba	2583	LEAVE_FF(fp->fs, FR_OK);
emh203	0:6b1e6c9e48ba	2584	}
emh203	0:6b1e6c9e48ba	2585
emh203	0:6b1e6c9e48ba	2586
emh203	0:6b1e6c9e48ba	2587
emh203	0:6b1e6c9e48ba	2588
emh203	0:6b1e6c9e48ba	2589	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2590	/* Synchronize the File Object */
emh203	0:6b1e6c9e48ba	2591	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2592
emh203	0:6b1e6c9e48ba	2593	FRESULT f_sync (
emh203	0:6b1e6c9e48ba	2594	FIL fp / Pointer to the file object */
emh203	0:6b1e6c9e48ba	2595	)
emh203	0:6b1e6c9e48ba	2596	{
emh203	0:6b1e6c9e48ba	2597	FRESULT res;
emh203	0:6b1e6c9e48ba	2598	DWORD tim;
emh203	0:6b1e6c9e48ba	2599	BYTE *dir;
emh203	0:6b1e6c9e48ba	2600
emh203	0:6b1e6c9e48ba	2601
emh203	0:6b1e6c9e48ba	2602	res = validate(fp->fs, fp->id); /* Check validity of the object */
emh203	0:6b1e6c9e48ba	2603	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	2604	if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
emh203	0:6b1e6c9e48ba	2605	#if !_FS_TINY /* Write-back dirty buffer */
emh203	0:6b1e6c9e48ba	2606	if (fp->flag & FA__DIRTY) {
emh203	0:6b1e6c9e48ba	2607	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
emh203	0:6b1e6c9e48ba	2608	LEAVE_FF(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2609	fp->flag &= ~FA__DIRTY;
emh203	0:6b1e6c9e48ba	2610	}
emh203	0:6b1e6c9e48ba	2611	#endif
emh203	0:6b1e6c9e48ba	2612	/* Update the directory entry */
emh203	0:6b1e6c9e48ba	2613	res = move_window(fp->fs, fp->dir_sect);
emh203	0:6b1e6c9e48ba	2614	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	2615	dir = fp->dir_ptr;
emh203	0:6b1e6c9e48ba	2616	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
emh203	0:6b1e6c9e48ba	2617	ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
emh203	0:6b1e6c9e48ba	2618	ST_CLUST(dir, fp->sclust); /* Update start cluster */
emh203	0:6b1e6c9e48ba	2619	tim = get_fattime(); /* Update updated time */
emh203	0:6b1e6c9e48ba	2620	ST_DWORD(dir+DIR_WrtTime, tim);
emh203	0:6b1e6c9e48ba	2621	fp->flag &= ~FA__WRITTEN;
emh203	0:6b1e6c9e48ba	2622	fp->fs->wflag = 1;
emh203	0:6b1e6c9e48ba	2623	res = sync(fp->fs);
emh203	0:6b1e6c9e48ba	2624	}
emh203	0:6b1e6c9e48ba	2625	}
emh203	0:6b1e6c9e48ba	2626	}
emh203	0:6b1e6c9e48ba	2627
emh203	0:6b1e6c9e48ba	2628	LEAVE_FF(fp->fs, res);
emh203	0:6b1e6c9e48ba	2629	}
emh203	0:6b1e6c9e48ba	2630
emh203	0:6b1e6c9e48ba	2631	#endif /* !_FS_READONLY */
emh203	0:6b1e6c9e48ba	2632
emh203	0:6b1e6c9e48ba	2633
emh203	0:6b1e6c9e48ba	2634
emh203	0:6b1e6c9e48ba	2635
emh203	0:6b1e6c9e48ba	2636	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2637	/* Close File */
emh203	0:6b1e6c9e48ba	2638	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2639
emh203	0:6b1e6c9e48ba	2640	FRESULT f_close (
emh203	0:6b1e6c9e48ba	2641	FIL fp / Pointer to the file object to be closed */
emh203	0:6b1e6c9e48ba	2642	)
emh203	0:6b1e6c9e48ba	2643	{
emh203	0:6b1e6c9e48ba	2644	FRESULT res;
emh203	0:6b1e6c9e48ba	2645
emh203	0:6b1e6c9e48ba	2646	#if _FS_READONLY
emh203	0:6b1e6c9e48ba	2647	FATFS *fs = fp->fs;
emh203	0:6b1e6c9e48ba	2648	res = validate(fs, fp->id);
emh203	0:6b1e6c9e48ba	2649	if (res == FR_OK) fp->fs = 0; /* Discard file object */
emh203	0:6b1e6c9e48ba	2650	LEAVE_FF(fs, res);
emh203	0:6b1e6c9e48ba	2651
emh203	0:6b1e6c9e48ba	2652	#else
emh203	0:6b1e6c9e48ba	2653	res = f_sync(fp); /* Flush cached data */
emh203	0:6b1e6c9e48ba	2654	#if _FS_SHARE
emh203	0:6b1e6c9e48ba	2655	if (res == FR_OK) { /* Decrement open counter */
emh203	0:6b1e6c9e48ba	2656	#if _FS_REENTRANT
emh203	0:6b1e6c9e48ba	2657	res = validate(fp->fs, fp->id);
emh203	0:6b1e6c9e48ba	2658	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	2659	res = dec_lock(fp->lockid);
emh203	0:6b1e6c9e48ba	2660	unlock_fs(fp->fs, FR_OK);
emh203	0:6b1e6c9e48ba	2661	}
emh203	0:6b1e6c9e48ba	2662	#else
emh203	0:6b1e6c9e48ba	2663	res = dec_lock(fp->lockid);
emh203	0:6b1e6c9e48ba	2664	#endif
emh203	0:6b1e6c9e48ba	2665	}
emh203	0:6b1e6c9e48ba	2666	#endif
emh203	0:6b1e6c9e48ba	2667	if (res == FR_OK) fp->fs = 0; /* Discard file object */
emh203	0:6b1e6c9e48ba	2668	return res;
emh203	0:6b1e6c9e48ba	2669	#endif
emh203	0:6b1e6c9e48ba	2670	}
emh203	0:6b1e6c9e48ba	2671
emh203	0:6b1e6c9e48ba	2672
emh203	0:6b1e6c9e48ba	2673
emh203	0:6b1e6c9e48ba	2674
emh203	0:6b1e6c9e48ba	2675	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2676	/* Current Drive/Directory Handlings */
emh203	0:6b1e6c9e48ba	2677	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2678
emh203	0:6b1e6c9e48ba	2679	#if _FS_RPATH >= 1
emh203	0:6b1e6c9e48ba	2680
emh203	0:6b1e6c9e48ba	2681	FRESULT f_chdrive (
emh203	0:6b1e6c9e48ba	2682	BYTE drv /* Drive number */
emh203	0:6b1e6c9e48ba	2683	)
emh203	0:6b1e6c9e48ba	2684	{
emh203	0:6b1e6c9e48ba	2685	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
emh203	0:6b1e6c9e48ba	2686
emh203	0:6b1e6c9e48ba	2687	CurrVol = drv;
emh203	0:6b1e6c9e48ba	2688
emh203	0:6b1e6c9e48ba	2689	return FR_OK;
emh203	0:6b1e6c9e48ba	2690	}
emh203	0:6b1e6c9e48ba	2691
emh203	0:6b1e6c9e48ba	2692
emh203	0:6b1e6c9e48ba	2693
emh203	0:6b1e6c9e48ba	2694	FRESULT f_chdir (
emh203	0:6b1e6c9e48ba	2695	const TCHAR path / Pointer to the directory path */
emh203	0:6b1e6c9e48ba	2696	)
emh203	0:6b1e6c9e48ba	2697	{
emh203	0:6b1e6c9e48ba	2698	FRESULT res;
emh203	0:6b1e6c9e48ba	2699	DIR dj;
emh203	0:6b1e6c9e48ba	2700	DEF_NAMEBUF;
emh203	0:6b1e6c9e48ba	2701
emh203	0:6b1e6c9e48ba	2702
emh203	0:6b1e6c9e48ba	2703	res = chk_mounted(&path, &dj.fs, 0);
emh203	0:6b1e6c9e48ba	2704	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	2705	INIT_BUF(dj);
emh203	0:6b1e6c9e48ba	2706	res = follow_path(&dj, path); /* Follow the path */
emh203	0:6b1e6c9e48ba	2707	FREE_BUF();
emh203	0:6b1e6c9e48ba	2708	if (res == FR_OK) { /* Follow completed */
emh203	0:6b1e6c9e48ba	2709	if (!dj.dir) {
emh203	0:6b1e6c9e48ba	2710	dj.fs->cdir = dj.sclust; /* Start directory itself */
emh203	0:6b1e6c9e48ba	2711	} else {
emh203	0:6b1e6c9e48ba	2712	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
emh203	0:6b1e6c9e48ba	2713	dj.fs->cdir = LD_CLUST(dj.dir);
emh203	0:6b1e6c9e48ba	2714	else
emh203	0:6b1e6c9e48ba	2715	res = FR_NO_PATH; /* Reached but a file */
emh203	0:6b1e6c9e48ba	2716	}
emh203	0:6b1e6c9e48ba	2717	}
emh203	0:6b1e6c9e48ba	2718	if (res == FR_NO_FILE) res = FR_NO_PATH;
emh203	0:6b1e6c9e48ba	2719	}
emh203	0:6b1e6c9e48ba	2720
emh203	0:6b1e6c9e48ba	2721	LEAVE_FF(dj.fs, res);
emh203	0:6b1e6c9e48ba	2722	}
emh203	0:6b1e6c9e48ba	2723
emh203	0:6b1e6c9e48ba	2724
emh203	0:6b1e6c9e48ba	2725	#if _FS_RPATH >= 2
emh203	0:6b1e6c9e48ba	2726	FRESULT f_getcwd (
emh203	0:6b1e6c9e48ba	2727	TCHAR path, / Pointer to the directory path */
emh203	0:6b1e6c9e48ba	2728	UINT sz_path /* Size of path */
emh203	0:6b1e6c9e48ba	2729	)
emh203	0:6b1e6c9e48ba	2730	{
emh203	0:6b1e6c9e48ba	2731	FRESULT res;
emh203	0:6b1e6c9e48ba	2732	DIR dj;
emh203	0:6b1e6c9e48ba	2733	UINT i, n;
emh203	0:6b1e6c9e48ba	2734	DWORD ccl;
emh203	0:6b1e6c9e48ba	2735	TCHAR *tp;
emh203	0:6b1e6c9e48ba	2736	FILINFO fno;
emh203	0:6b1e6c9e48ba	2737	DEF_NAMEBUF;
emh203	0:6b1e6c9e48ba	2738
emh203	0:6b1e6c9e48ba	2739
emh203	0:6b1e6c9e48ba	2740	*path = 0;
emh203	0:6b1e6c9e48ba	2741	res = chk_mounted((const TCHAR*)&path, &dj.fs, 0); / Get current volume */
emh203	0:6b1e6c9e48ba	2742	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	2743	INIT_BUF(dj);
emh203	0:6b1e6c9e48ba	2744	i = sz_path; /* Bottom of buffer (dir stack base) */
emh203	0:6b1e6c9e48ba	2745	dj.sclust = dj.fs->cdir; /* Start to follow upper dir from current dir */
emh203	0:6b1e6c9e48ba	2746	while ((ccl = dj.sclust) != 0) { /* Repeat while current dir is a sub-dir */
emh203	0:6b1e6c9e48ba	2747	res = dir_sdi(&dj, 1); /* Get parent dir */
emh203	0:6b1e6c9e48ba	2748	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	2749	res = dir_read(&dj);
emh203	0:6b1e6c9e48ba	2750	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	2751	dj.sclust = LD_CLUST(dj.dir); /* Goto parent dir */
emh203	0:6b1e6c9e48ba	2752	res = dir_sdi(&dj, 0);
emh203	0:6b1e6c9e48ba	2753	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	2754	do { /* Find the entry links to the child dir */
emh203	0:6b1e6c9e48ba	2755	res = dir_read(&dj);
emh203	0:6b1e6c9e48ba	2756	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	2757	if (ccl == LD_CLUST(dj.dir)) break; /* Found the entry */
emh203	0:6b1e6c9e48ba	2758	res = dir_next(&dj, 0);
emh203	0:6b1e6c9e48ba	2759	} while (res == FR_OK);
emh203	0:6b1e6c9e48ba	2760	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
emh203	0:6b1e6c9e48ba	2761	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	2762	#if _USE_LFN
emh203	0:6b1e6c9e48ba	2763	fno.lfname = path;
emh203	0:6b1e6c9e48ba	2764	fno.lfsize = i;
emh203	0:6b1e6c9e48ba	2765	#endif
emh203	0:6b1e6c9e48ba	2766	get_fileinfo(&dj, &fno); /* Get the dir name and push it to the buffer */
emh203	0:6b1e6c9e48ba	2767	tp = fno.fname;
emh203	0:6b1e6c9e48ba	2768	if (_USE_LFN && *path) tp = path;
emh203	0:6b1e6c9e48ba	2769	for (n = 0; tp[n]; n++) ;
emh203	0:6b1e6c9e48ba	2770	if (i < n + 3) {
emh203	0:6b1e6c9e48ba	2771	res = FR_NOT_ENOUGH_CORE; break;
emh203	0:6b1e6c9e48ba	2772	}
emh203	0:6b1e6c9e48ba	2773	while (n) path[--i] = tp[--n];
emh203	0:6b1e6c9e48ba	2774	path[--i] = '/';
emh203	0:6b1e6c9e48ba	2775	}
emh203	0:6b1e6c9e48ba	2776	tp = path;
emh203	0:6b1e6c9e48ba	2777	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	2778	tp++ = '0' + CurrVol; / Put drive number */
emh203	0:6b1e6c9e48ba	2779	*tp++ = ':';
emh203	0:6b1e6c9e48ba	2780	if (i == sz_path) { /* Root-dir */
emh203	0:6b1e6c9e48ba	2781	*tp++ = '/';
emh203	0:6b1e6c9e48ba	2782	} else { /* Sub-dir */
emh203	0:6b1e6c9e48ba	2783	do /* Add stacked path str */
emh203	0:6b1e6c9e48ba	2784	*tp++ = path[i++];
emh203	0:6b1e6c9e48ba	2785	while (i < sz_path);
emh203	0:6b1e6c9e48ba	2786	}
emh203	0:6b1e6c9e48ba	2787	}
emh203	0:6b1e6c9e48ba	2788	*tp = 0;
emh203	0:6b1e6c9e48ba	2789	FREE_BUF();
emh203	0:6b1e6c9e48ba	2790	}
emh203	0:6b1e6c9e48ba	2791
emh203	0:6b1e6c9e48ba	2792	LEAVE_FF(dj.fs, res);
emh203	0:6b1e6c9e48ba	2793	}
emh203	0:6b1e6c9e48ba	2794	#endif /* _FS_RPATH >= 2 */
emh203	0:6b1e6c9e48ba	2795	#endif /* _FS_RPATH >= 1 */
emh203	0:6b1e6c9e48ba	2796
emh203	0:6b1e6c9e48ba	2797
emh203	0:6b1e6c9e48ba	2798
emh203	0:6b1e6c9e48ba	2799	#if _FS_MINIMIZE <= 2
emh203	0:6b1e6c9e48ba	2800	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2801	/* Seek File R/W Pointer */
emh203	0:6b1e6c9e48ba	2802	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2803
emh203	0:6b1e6c9e48ba	2804	FRESULT f_lseek (
emh203	0:6b1e6c9e48ba	2805	FIL fp, / Pointer to the file object */
emh203	0:6b1e6c9e48ba	2806	DWORD ofs /* File pointer from top of file */
emh203	0:6b1e6c9e48ba	2807	)
emh203	0:6b1e6c9e48ba	2808	{
emh203	0:6b1e6c9e48ba	2809	FRESULT res;
emh203	0:6b1e6c9e48ba	2810
emh203	0:6b1e6c9e48ba	2811
emh203	0:6b1e6c9e48ba	2812	res = validate(fp->fs, fp->id); /* Check validity of the object */
emh203	0:6b1e6c9e48ba	2813	if (res != FR_OK) LEAVE_FF(fp->fs, res);
emh203	0:6b1e6c9e48ba	2814	if (fp->flag & FA__ERROR) /* Check abort flag */
emh203	0:6b1e6c9e48ba	2815	LEAVE_FF(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	2816
emh203	0:6b1e6c9e48ba	2817	#if _USE_FASTSEEK
emh203	0:6b1e6c9e48ba	2818	if (fp->cltbl) { /* Fast seek */
emh203	0:6b1e6c9e48ba	2819	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
emh203	0:6b1e6c9e48ba	2820
emh203	0:6b1e6c9e48ba	2821	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
emh203	0:6b1e6c9e48ba	2822	tbl = fp->cltbl;
emh203	0:6b1e6c9e48ba	2823	tlen = tbl++; ulen = 2; / Given table size and required table size */
emh203	0:6b1e6c9e48ba	2824	cl = fp->sclust; /* Top of the chain */
emh203	0:6b1e6c9e48ba	2825	if (cl) {
emh203	0:6b1e6c9e48ba	2826	do {
emh203	0:6b1e6c9e48ba	2827	/* Get a fragment */
emh203	0:6b1e6c9e48ba	2828	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
emh203	0:6b1e6c9e48ba	2829	do {
emh203	0:6b1e6c9e48ba	2830	pcl = cl; ncl++;
emh203	0:6b1e6c9e48ba	2831	cl = get_fat(fp->fs, cl);
emh203	0:6b1e6c9e48ba	2832	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	2833	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2834	} while (cl == pcl + 1);
emh203	0:6b1e6c9e48ba	2835	if (ulen <= tlen) { /* Store the length and top of the fragment */
emh203	0:6b1e6c9e48ba	2836	tbl++ = ncl; tbl++ = tcl;
emh203	0:6b1e6c9e48ba	2837	}
emh203	0:6b1e6c9e48ba	2838	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
emh203	0:6b1e6c9e48ba	2839	}
emh203	0:6b1e6c9e48ba	2840	fp->cltbl = ulen; / Number of items used */
emh203	0:6b1e6c9e48ba	2841	if (ulen <= tlen)
emh203	0:6b1e6c9e48ba	2842	tbl = 0; / Terminate table */
emh203	0:6b1e6c9e48ba	2843	else
emh203	0:6b1e6c9e48ba	2844	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
emh203	0:6b1e6c9e48ba	2845
emh203	0:6b1e6c9e48ba	2846	} else { /* Fast seek */
emh203	0:6b1e6c9e48ba	2847	if (ofs > fp->fsize) /* Clip offset at the file size */
emh203	0:6b1e6c9e48ba	2848	ofs = fp->fsize;
emh203	0:6b1e6c9e48ba	2849	fp->fptr = ofs; /* Set file pointer */
emh203	0:6b1e6c9e48ba	2850	if (ofs) {
emh203	0:6b1e6c9e48ba	2851	fp->clust = clmt_clust(fp, ofs - 1);
emh203	0:6b1e6c9e48ba	2852	dsc = clust2sect(fp->fs, fp->clust);
emh203	0:6b1e6c9e48ba	2853	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	2854	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
emh203	0:6b1e6c9e48ba	2855	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
emh203	0:6b1e6c9e48ba	2856	#if !_FS_TINY
emh203	0:6b1e6c9e48ba	2857	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	2858	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
emh203	0:6b1e6c9e48ba	2859	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
emh203	0:6b1e6c9e48ba	2860	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2861	fp->flag &= ~FA__DIRTY;
emh203	0:6b1e6c9e48ba	2862	}
emh203	0:6b1e6c9e48ba	2863	#endif
emh203	0:6b1e6c9e48ba	2864	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
emh203	0:6b1e6c9e48ba	2865	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2866	#endif
emh203	0:6b1e6c9e48ba	2867	fp->dsect = dsc;
emh203	0:6b1e6c9e48ba	2868	}
emh203	0:6b1e6c9e48ba	2869	}
emh203	0:6b1e6c9e48ba	2870	}
emh203	0:6b1e6c9e48ba	2871	} else
emh203	0:6b1e6c9e48ba	2872	#endif
emh203	0:6b1e6c9e48ba	2873
emh203	0:6b1e6c9e48ba	2874	/* Normal Seek */
emh203	0:6b1e6c9e48ba	2875	{
emh203	0:6b1e6c9e48ba	2876	DWORD clst, bcs, nsect, ifptr;
emh203	0:6b1e6c9e48ba	2877
emh203	0:6b1e6c9e48ba	2878	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
emh203	0:6b1e6c9e48ba	2879	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	2880	&& !(fp->flag & FA_WRITE)
emh203	0:6b1e6c9e48ba	2881	#endif
emh203	0:6b1e6c9e48ba	2882	) ofs = fp->fsize;
emh203	0:6b1e6c9e48ba	2883
emh203	0:6b1e6c9e48ba	2884	ifptr = fp->fptr;
emh203	0:6b1e6c9e48ba	2885	fp->fptr = nsect = 0;
emh203	0:6b1e6c9e48ba	2886	if (ofs) {
emh203	0:6b1e6c9e48ba	2887	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
emh203	0:6b1e6c9e48ba	2888	if (ifptr > 0 &&
emh203	0:6b1e6c9e48ba	2889	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
emh203	0:6b1e6c9e48ba	2890	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
emh203	0:6b1e6c9e48ba	2891	ofs -= fp->fptr;
emh203	0:6b1e6c9e48ba	2892	clst = fp->clust;
emh203	0:6b1e6c9e48ba	2893	} else { /* When seek to back cluster, */
emh203	0:6b1e6c9e48ba	2894	clst = fp->sclust; /* start from the first cluster */
emh203	0:6b1e6c9e48ba	2895	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	2896	if (clst == 0) { /* If no cluster chain, create a new chain */
emh203	0:6b1e6c9e48ba	2897	clst = create_chain(fp->fs, 0);
emh203	0:6b1e6c9e48ba	2898	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	2899	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2900	fp->sclust = clst;
emh203	0:6b1e6c9e48ba	2901	}
emh203	0:6b1e6c9e48ba	2902	#endif
emh203	0:6b1e6c9e48ba	2903	fp->clust = clst;
emh203	0:6b1e6c9e48ba	2904	}
emh203	0:6b1e6c9e48ba	2905	if (clst != 0) {
emh203	0:6b1e6c9e48ba	2906	while (ofs > bcs) { /* Cluster following loop */
emh203	0:6b1e6c9e48ba	2907	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	2908	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
emh203	0:6b1e6c9e48ba	2909	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
emh203	0:6b1e6c9e48ba	2910	if (clst == 0) { /* When disk gets full, clip file size */
emh203	0:6b1e6c9e48ba	2911	ofs = bcs; break;
emh203	0:6b1e6c9e48ba	2912	}
emh203	0:6b1e6c9e48ba	2913	} else
emh203	0:6b1e6c9e48ba	2914	#endif
emh203	0:6b1e6c9e48ba	2915	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
emh203	0:6b1e6c9e48ba	2916	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2917	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	2918	fp->clust = clst;
emh203	0:6b1e6c9e48ba	2919	fp->fptr += bcs;
emh203	0:6b1e6c9e48ba	2920	ofs -= bcs;
emh203	0:6b1e6c9e48ba	2921	}
emh203	0:6b1e6c9e48ba	2922	fp->fptr += ofs;
emh203	0:6b1e6c9e48ba	2923	if (ofs % SS(fp->fs)) {
emh203	0:6b1e6c9e48ba	2924	nsect = clust2sect(fp->fs, clst); /* Current sector */
emh203	0:6b1e6c9e48ba	2925	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	2926	nsect += ofs / SS(fp->fs);
emh203	0:6b1e6c9e48ba	2927	}
emh203	0:6b1e6c9e48ba	2928	}
emh203	0:6b1e6c9e48ba	2929	}
emh203	0:6b1e6c9e48ba	2930	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
emh203	0:6b1e6c9e48ba	2931	#if !_FS_TINY
emh203	0:6b1e6c9e48ba	2932	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	2933	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
emh203	0:6b1e6c9e48ba	2934	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
emh203	0:6b1e6c9e48ba	2935	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2936	fp->flag &= ~FA__DIRTY;
emh203	0:6b1e6c9e48ba	2937	}
emh203	0:6b1e6c9e48ba	2938	#endif
emh203	0:6b1e6c9e48ba	2939	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
emh203	0:6b1e6c9e48ba	2940	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	2941	#endif
emh203	0:6b1e6c9e48ba	2942	fp->dsect = nsect;
emh203	0:6b1e6c9e48ba	2943	}
emh203	0:6b1e6c9e48ba	2944	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	2945	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
emh203	0:6b1e6c9e48ba	2946	fp->fsize = fp->fptr;
emh203	0:6b1e6c9e48ba	2947	fp->flag \|= FA__WRITTEN;
emh203	0:6b1e6c9e48ba	2948	}
emh203	0:6b1e6c9e48ba	2949	#endif
emh203	0:6b1e6c9e48ba	2950	}
emh203	0:6b1e6c9e48ba	2951
emh203	0:6b1e6c9e48ba	2952	LEAVE_FF(fp->fs, res);
emh203	0:6b1e6c9e48ba	2953	}
emh203	0:6b1e6c9e48ba	2954
emh203	0:6b1e6c9e48ba	2955
emh203	0:6b1e6c9e48ba	2956
emh203	0:6b1e6c9e48ba	2957	#if _FS_MINIMIZE <= 1
emh203	0:6b1e6c9e48ba	2958	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2959	/* Create a Directroy Object */
emh203	0:6b1e6c9e48ba	2960	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2961
emh203	0:6b1e6c9e48ba	2962	FRESULT f_opendir (
emh203	0:6b1e6c9e48ba	2963	eDIR dj, / Pointer to directory object to create */
emh203	0:6b1e6c9e48ba	2964	const TCHAR path / Pointer to the directory path */
emh203	0:6b1e6c9e48ba	2965	)
emh203	0:6b1e6c9e48ba	2966	{
emh203	0:6b1e6c9e48ba	2967	FRESULT res;
emh203	0:6b1e6c9e48ba	2968	DEF_NAMEBUF;
emh203	0:6b1e6c9e48ba	2969
emh203	0:6b1e6c9e48ba	2970
emh203	0:6b1e6c9e48ba	2971	res = chk_mounted(&path, &dj->fs, 0);
emh203	0:6b1e6c9e48ba	2972	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	2973	INIT_BUF(*dj);
emh203	0:6b1e6c9e48ba	2974	res = follow_path(dj, path); /* Follow the path to the directory */
emh203	0:6b1e6c9e48ba	2975	FREE_BUF();
emh203	0:6b1e6c9e48ba	2976	if (res == FR_OK) { /* Follow completed */
emh203	0:6b1e6c9e48ba	2977	if (dj->dir) { /* It is not the root dir */
emh203	0:6b1e6c9e48ba	2978	if (dj->dir[DIR_Attr] & AM_DIR) { /* The object is a directory */
emh203	0:6b1e6c9e48ba	2979	dj->sclust = LD_CLUST(dj->dir);
emh203	0:6b1e6c9e48ba	2980	} else { /* The object is not a directory */
emh203	0:6b1e6c9e48ba	2981	res = FR_NO_PATH;
emh203	0:6b1e6c9e48ba	2982	}
emh203	0:6b1e6c9e48ba	2983	}
emh203	0:6b1e6c9e48ba	2984	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	2985	dj->id = dj->fs->id;
emh203	0:6b1e6c9e48ba	2986	res = dir_sdi(dj, 0); /* Rewind dir */
emh203	0:6b1e6c9e48ba	2987	}
emh203	0:6b1e6c9e48ba	2988	}
emh203	0:6b1e6c9e48ba	2989	if (res == FR_NO_FILE) res = FR_NO_PATH;
emh203	0:6b1e6c9e48ba	2990	}
emh203	0:6b1e6c9e48ba	2991
emh203	0:6b1e6c9e48ba	2992	LEAVE_FF(dj->fs, res);
emh203	0:6b1e6c9e48ba	2993	}
emh203	0:6b1e6c9e48ba	2994
emh203	0:6b1e6c9e48ba	2995
emh203	0:6b1e6c9e48ba	2996
emh203	0:6b1e6c9e48ba	2997
emh203	0:6b1e6c9e48ba	2998	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	2999	/* Read Directory Entry in Sequense */
emh203	0:6b1e6c9e48ba	3000	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3001
emh203	0:6b1e6c9e48ba	3002	FRESULT f_readdir (
emh203	0:6b1e6c9e48ba	3003	eDIR dj, / Pointer to the open directory object */
emh203	0:6b1e6c9e48ba	3004	FILINFO fno / Pointer to file information to return */
emh203	0:6b1e6c9e48ba	3005	)
emh203	0:6b1e6c9e48ba	3006	{
emh203	0:6b1e6c9e48ba	3007	FRESULT res;
emh203	0:6b1e6c9e48ba	3008	DEF_NAMEBUF;
emh203	0:6b1e6c9e48ba	3009
emh203	0:6b1e6c9e48ba	3010
emh203	0:6b1e6c9e48ba	3011	res = validate(dj->fs, dj->id); /* Check validity of the object */
emh203	0:6b1e6c9e48ba	3012	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3013	if (!fno) {
emh203	0:6b1e6c9e48ba	3014	res = dir_sdi(dj, 0); /* Rewind the directory object */
emh203	0:6b1e6c9e48ba	3015	} else {
emh203	0:6b1e6c9e48ba	3016	INIT_BUF(*dj);
emh203	0:6b1e6c9e48ba	3017	res = dir_read(dj); /* Read an directory item */
emh203	0:6b1e6c9e48ba	3018	if (res == FR_NO_FILE) { /* Reached end of dir */
emh203	0:6b1e6c9e48ba	3019	dj->sect = 0;
emh203	0:6b1e6c9e48ba	3020	res = FR_OK;
emh203	0:6b1e6c9e48ba	3021	}
emh203	0:6b1e6c9e48ba	3022	if (res == FR_OK) { /* A valid entry is found */
emh203	0:6b1e6c9e48ba	3023	get_fileinfo(dj, fno); /* Get the object information */
emh203	0:6b1e6c9e48ba	3024	res = dir_next(dj, 0); /* Increment index for next */
emh203	0:6b1e6c9e48ba	3025	if (res == FR_NO_FILE) {
emh203	0:6b1e6c9e48ba	3026	dj->sect = 0;
emh203	0:6b1e6c9e48ba	3027	res = FR_OK;
emh203	0:6b1e6c9e48ba	3028	}
emh203	0:6b1e6c9e48ba	3029	}
emh203	0:6b1e6c9e48ba	3030	FREE_BUF();
emh203	0:6b1e6c9e48ba	3031	}
emh203	0:6b1e6c9e48ba	3032	}
emh203	0:6b1e6c9e48ba	3033
emh203	0:6b1e6c9e48ba	3034	LEAVE_FF(dj->fs, res);
emh203	0:6b1e6c9e48ba	3035	}
emh203	0:6b1e6c9e48ba	3036
emh203	0:6b1e6c9e48ba	3037
emh203	0:6b1e6c9e48ba	3038
emh203	0:6b1e6c9e48ba	3039	#if _FS_MINIMIZE == 0
emh203	0:6b1e6c9e48ba	3040	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3041	/* Get File Status */
emh203	0:6b1e6c9e48ba	3042	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3043
emh203	0:6b1e6c9e48ba	3044	FRESULT f_stat (
emh203	0:6b1e6c9e48ba	3045	const TCHAR path, / Pointer to the file path */
emh203	0:6b1e6c9e48ba	3046	FILINFO fno / Pointer to file information to return */
emh203	0:6b1e6c9e48ba	3047	)
emh203	0:6b1e6c9e48ba	3048	{
emh203	0:6b1e6c9e48ba	3049	FRESULT res;
emh203	0:6b1e6c9e48ba	3050	eDIR dj;
emh203	0:6b1e6c9e48ba	3051	DEF_NAMEBUF;
emh203	0:6b1e6c9e48ba	3052
emh203	0:6b1e6c9e48ba	3053
emh203	0:6b1e6c9e48ba	3054	res = chk_mounted(&path, &dj.fs, 0);
emh203	0:6b1e6c9e48ba	3055	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3056	INIT_BUF(dj);
emh203	0:6b1e6c9e48ba	3057	res = follow_path(&dj, path); /* Follow the file path */
emh203	0:6b1e6c9e48ba	3058	if (res == FR_OK) { /* Follow completed */
emh203	0:6b1e6c9e48ba	3059	if (dj.dir) /* Found an object */
emh203	0:6b1e6c9e48ba	3060	get_fileinfo(&dj, fno);
emh203	0:6b1e6c9e48ba	3061	else /* It is root dir */
emh203	0:6b1e6c9e48ba	3062	res = FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	3063	}
emh203	0:6b1e6c9e48ba	3064	FREE_BUF();
emh203	0:6b1e6c9e48ba	3065	}
emh203	0:6b1e6c9e48ba	3066
emh203	0:6b1e6c9e48ba	3067	LEAVE_FF(dj.fs, res);
emh203	0:6b1e6c9e48ba	3068	}
emh203	0:6b1e6c9e48ba	3069
emh203	0:6b1e6c9e48ba	3070
emh203	0:6b1e6c9e48ba	3071
emh203	0:6b1e6c9e48ba	3072	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	3073	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3074	/* Get Number of Free Clusters */
emh203	0:6b1e6c9e48ba	3075	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3076
emh203	0:6b1e6c9e48ba	3077	FRESULT f_getfree (
emh203	0:6b1e6c9e48ba	3078	const TCHAR path, / Pointer to the logical drive number (root dir) */
emh203	0:6b1e6c9e48ba	3079	DWORD nclst, / Pointer to the variable to return number of free clusters */
emh203	0:6b1e6c9e48ba	3080	FATFS *fatfs / Pointer to pointer to corresponding file system object to return */
emh203	0:6b1e6c9e48ba	3081	)
emh203	0:6b1e6c9e48ba	3082	{
emh203	0:6b1e6c9e48ba	3083	FRESULT res;
emh203	0:6b1e6c9e48ba	3084	DWORD n, clst, sect, stat;
emh203	0:6b1e6c9e48ba	3085	UINT i;
emh203	0:6b1e6c9e48ba	3086	BYTE fat, *p;
emh203	0:6b1e6c9e48ba	3087
emh203	0:6b1e6c9e48ba	3088
emh203	0:6b1e6c9e48ba	3089	/* Get drive number */
emh203	0:6b1e6c9e48ba	3090	res = chk_mounted(&path, fatfs, 0);
emh203	0:6b1e6c9e48ba	3091	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3092	/* If free_clust is valid, return it without full cluster scan */
emh203	0:6b1e6c9e48ba	3093	if ((fatfs)->free_clust <= (fatfs)->n_fatent - 2) {
emh203	0:6b1e6c9e48ba	3094	nclst = (fatfs)->free_clust;
emh203	0:6b1e6c9e48ba	3095	} else {
emh203	0:6b1e6c9e48ba	3096	/* Get number of free clusters */
emh203	0:6b1e6c9e48ba	3097	fat = (*fatfs)->fs_type;
emh203	0:6b1e6c9e48ba	3098	n = 0;
emh203	0:6b1e6c9e48ba	3099	if (fat == FS_FAT12) {
emh203	0:6b1e6c9e48ba	3100	clst = 2;
emh203	0:6b1e6c9e48ba	3101	do {
emh203	0:6b1e6c9e48ba	3102	stat = get_fat(*fatfs, clst);
emh203	0:6b1e6c9e48ba	3103	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
emh203	0:6b1e6c9e48ba	3104	if (stat == 1) { res = FR_INT_ERR; break; }
emh203	0:6b1e6c9e48ba	3105	if (stat == 0) n++;
emh203	0:6b1e6c9e48ba	3106	} while (++clst < (*fatfs)->n_fatent);
emh203	0:6b1e6c9e48ba	3107	} else {
emh203	0:6b1e6c9e48ba	3108	clst = (*fatfs)->n_fatent;
emh203	0:6b1e6c9e48ba	3109	sect = (*fatfs)->fatbase;
emh203	0:6b1e6c9e48ba	3110	i = 0; p = 0;
emh203	0:6b1e6c9e48ba	3111	do {
emh203	0:6b1e6c9e48ba	3112	if (!i) {
emh203	0:6b1e6c9e48ba	3113	res = move_window(*fatfs, sect++);
emh203	0:6b1e6c9e48ba	3114	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	3115	p = (*fatfs)->win;
emh203	0:6b1e6c9e48ba	3116	i = SS(*fatfs);
emh203	0:6b1e6c9e48ba	3117	}
emh203	0:6b1e6c9e48ba	3118	if (fat == FS_FAT16) {
emh203	0:6b1e6c9e48ba	3119	if (LD_WORD(p) == 0) n++;
emh203	0:6b1e6c9e48ba	3120	p += 2; i -= 2;
emh203	0:6b1e6c9e48ba	3121	} else {
emh203	0:6b1e6c9e48ba	3122	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
emh203	0:6b1e6c9e48ba	3123	p += 4; i -= 4;
emh203	0:6b1e6c9e48ba	3124	}
emh203	0:6b1e6c9e48ba	3125	} while (--clst);
emh203	0:6b1e6c9e48ba	3126	}
emh203	0:6b1e6c9e48ba	3127	(*fatfs)->free_clust = n;
emh203	0:6b1e6c9e48ba	3128	if (fat == FS_FAT32) (*fatfs)->fsi_flag = 1;
emh203	0:6b1e6c9e48ba	3129	*nclst = n;
emh203	0:6b1e6c9e48ba	3130	}
emh203	0:6b1e6c9e48ba	3131	}
emh203	0:6b1e6c9e48ba	3132	LEAVE_FF(*fatfs, res);
emh203	0:6b1e6c9e48ba	3133	}
emh203	0:6b1e6c9e48ba	3134
emh203	0:6b1e6c9e48ba	3135
emh203	0:6b1e6c9e48ba	3136
emh203	0:6b1e6c9e48ba	3137
emh203	0:6b1e6c9e48ba	3138	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3139	/* Truncate File */
emh203	0:6b1e6c9e48ba	3140	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3141
emh203	0:6b1e6c9e48ba	3142	FRESULT f_truncate (
emh203	0:6b1e6c9e48ba	3143	FIL fp / Pointer to the file object */
emh203	0:6b1e6c9e48ba	3144	)
emh203	0:6b1e6c9e48ba	3145	{
emh203	0:6b1e6c9e48ba	3146	FRESULT res;
emh203	0:6b1e6c9e48ba	3147	DWORD ncl;
emh203	0:6b1e6c9e48ba	3148
emh203	0:6b1e6c9e48ba	3149
emh203	0:6b1e6c9e48ba	3150	res = validate(fp->fs, fp->id); /* Check validity of the object */
emh203	0:6b1e6c9e48ba	3151	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3152	if (fp->flag & FA__ERROR) { /* Check abort flag */
emh203	0:6b1e6c9e48ba	3153	res = FR_INT_ERR;
emh203	0:6b1e6c9e48ba	3154	} else {
emh203	0:6b1e6c9e48ba	3155	if (!(fp->flag & FA_WRITE)) /* Check access mode */
emh203	0:6b1e6c9e48ba	3156	res = FR_DENIED;
emh203	0:6b1e6c9e48ba	3157	}
emh203	0:6b1e6c9e48ba	3158	}
emh203	0:6b1e6c9e48ba	3159	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3160	if (fp->fsize > fp->fptr) {
emh203	0:6b1e6c9e48ba	3161	fp->fsize = fp->fptr; /* Set file size to current R/W point */
emh203	0:6b1e6c9e48ba	3162	fp->flag \|= FA__WRITTEN;
emh203	0:6b1e6c9e48ba	3163	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
emh203	0:6b1e6c9e48ba	3164	res = remove_chain(fp->fs, fp->sclust);
emh203	0:6b1e6c9e48ba	3165	fp->sclust = 0;
emh203	0:6b1e6c9e48ba	3166	} else { /* When truncate a part of the file, remove remaining clusters */
emh203	0:6b1e6c9e48ba	3167	ncl = get_fat(fp->fs, fp->clust);
emh203	0:6b1e6c9e48ba	3168	res = FR_OK;
emh203	0:6b1e6c9e48ba	3169	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	3170	if (ncl == 1) res = FR_INT_ERR;
emh203	0:6b1e6c9e48ba	3171	if (res == FR_OK && ncl < fp->fs->n_fatent) {
emh203	0:6b1e6c9e48ba	3172	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
emh203	0:6b1e6c9e48ba	3173	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
emh203	0:6b1e6c9e48ba	3174	}
emh203	0:6b1e6c9e48ba	3175	}
emh203	0:6b1e6c9e48ba	3176	}
emh203	0:6b1e6c9e48ba	3177	if (res != FR_OK) fp->flag \|= FA__ERROR;
emh203	0:6b1e6c9e48ba	3178	}
emh203	0:6b1e6c9e48ba	3179
emh203	0:6b1e6c9e48ba	3180	LEAVE_FF(fp->fs, res);
emh203	0:6b1e6c9e48ba	3181	}
emh203	0:6b1e6c9e48ba	3182
emh203	0:6b1e6c9e48ba	3183
emh203	0:6b1e6c9e48ba	3184
emh203	0:6b1e6c9e48ba	3185
emh203	0:6b1e6c9e48ba	3186	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3187	/* Delete a File or Directory */
emh203	0:6b1e6c9e48ba	3188	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3189
emh203	0:6b1e6c9e48ba	3190	FRESULT f_unlink (
emh203	0:6b1e6c9e48ba	3191	const TCHAR path / Pointer to the file or directory path */
emh203	0:6b1e6c9e48ba	3192	)
emh203	0:6b1e6c9e48ba	3193	{
emh203	0:6b1e6c9e48ba	3194	FRESULT res;
emh203	0:6b1e6c9e48ba	3195	eDIR dj, sdj;
emh203	0:6b1e6c9e48ba	3196	BYTE *dir;
emh203	0:6b1e6c9e48ba	3197	DWORD dclst;
emh203	0:6b1e6c9e48ba	3198	DEF_NAMEBUF;
emh203	0:6b1e6c9e48ba	3199
emh203	0:6b1e6c9e48ba	3200
emh203	0:6b1e6c9e48ba	3201	res = chk_mounted(&path, &dj.fs, 1);
emh203	0:6b1e6c9e48ba	3202	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3203	INIT_BUF(dj);
emh203	0:6b1e6c9e48ba	3204	res = follow_path(&dj, path); /* Follow the file path */
emh203	0:6b1e6c9e48ba	3205	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
emh203	0:6b1e6c9e48ba	3206	res = FR_INVALID_NAME; /* Cannot remove dot entry */
emh203	0:6b1e6c9e48ba	3207	#if _FS_SHARE
emh203	0:6b1e6c9e48ba	3208	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open file */
emh203	0:6b1e6c9e48ba	3209	#endif
emh203	0:6b1e6c9e48ba	3210	if (res == FR_OK) { /* The object is accessible */
emh203	0:6b1e6c9e48ba	3211	dir = dj.dir;
emh203	0:6b1e6c9e48ba	3212	if (!dir) {
emh203	0:6b1e6c9e48ba	3213	res = FR_INVALID_NAME; /* Cannot remove the start directory */
emh203	0:6b1e6c9e48ba	3214	} else {
emh203	0:6b1e6c9e48ba	3215	if (dir[DIR_Attr] & AM_RDO)
emh203	0:6b1e6c9e48ba	3216	res = FR_DENIED; /* Cannot remove R/O object */
emh203	0:6b1e6c9e48ba	3217	}
emh203	0:6b1e6c9e48ba	3218	dclst = LD_CLUST(dir);
emh203	0:6b1e6c9e48ba	3219	if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-dir? */
emh203	0:6b1e6c9e48ba	3220	if (dclst < 2) {
emh203	0:6b1e6c9e48ba	3221	res = FR_INT_ERR;
emh203	0:6b1e6c9e48ba	3222	} else {
emh203	0:6b1e6c9e48ba	3223	mem_cpy(&sdj, &dj, sizeof(eDIR)); /* Check if the sub-dir is empty or not */
emh203	0:6b1e6c9e48ba	3224	sdj.sclust = dclst;
emh203	0:6b1e6c9e48ba	3225	res = dir_sdi(&sdj, 2); /* Exclude dot entries */
emh203	0:6b1e6c9e48ba	3226	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3227	res = dir_read(&sdj);
emh203	0:6b1e6c9e48ba	3228	if (res == FR_OK /* Not empty dir */
emh203	0:6b1e6c9e48ba	3229	#if _FS_RPATH
emh203	0:6b1e6c9e48ba	3230	\|\| dclst == sdj.fs->cdir /* Current dir */
emh203	0:6b1e6c9e48ba	3231	#endif
emh203	0:6b1e6c9e48ba	3232	) res = FR_DENIED;
emh203	0:6b1e6c9e48ba	3233	if (res == FR_NO_FILE) res = FR_OK; /* Empty */
emh203	0:6b1e6c9e48ba	3234	}
emh203	0:6b1e6c9e48ba	3235	}
emh203	0:6b1e6c9e48ba	3236	}
emh203	0:6b1e6c9e48ba	3237	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3238	res = dir_remove(&dj); /* Remove the directory entry */
emh203	0:6b1e6c9e48ba	3239	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3240	if (dclst) /* Remove the cluster chain if exist */
emh203	0:6b1e6c9e48ba	3241	res = remove_chain(dj.fs, dclst);
emh203	0:6b1e6c9e48ba	3242	if (res == FR_OK) res = sync(dj.fs);
emh203	0:6b1e6c9e48ba	3243	}
emh203	0:6b1e6c9e48ba	3244	}
emh203	0:6b1e6c9e48ba	3245	}
emh203	0:6b1e6c9e48ba	3246	FREE_BUF();
emh203	0:6b1e6c9e48ba	3247	}
emh203	0:6b1e6c9e48ba	3248	LEAVE_FF(dj.fs, res);
emh203	0:6b1e6c9e48ba	3249	}
emh203	0:6b1e6c9e48ba	3250
emh203	0:6b1e6c9e48ba	3251
emh203	0:6b1e6c9e48ba	3252
emh203	0:6b1e6c9e48ba	3253
emh203	0:6b1e6c9e48ba	3254	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3255	/* Create a Directory */
emh203	0:6b1e6c9e48ba	3256	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3257
emh203	0:6b1e6c9e48ba	3258	FRESULT f_mkdir (
emh203	0:6b1e6c9e48ba	3259	const TCHAR path / Pointer to the directory path */
emh203	0:6b1e6c9e48ba	3260	)
emh203	0:6b1e6c9e48ba	3261	{
emh203	0:6b1e6c9e48ba	3262	FRESULT res;
emh203	0:6b1e6c9e48ba	3263	eDIR dj;
emh203	0:6b1e6c9e48ba	3264	BYTE *dir, n;
emh203	0:6b1e6c9e48ba	3265	DWORD dsc, dcl, pcl, tim = get_fattime();
emh203	0:6b1e6c9e48ba	3266	DEF_NAMEBUF;
emh203	0:6b1e6c9e48ba	3267
emh203	0:6b1e6c9e48ba	3268
emh203	0:6b1e6c9e48ba	3269	res = chk_mounted(&path, &dj.fs, 1);
emh203	0:6b1e6c9e48ba	3270	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3271	INIT_BUF(dj);
emh203	0:6b1e6c9e48ba	3272	res = follow_path(&dj, path); /* Follow the file path */
emh203	0:6b1e6c9e48ba	3273	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
emh203	0:6b1e6c9e48ba	3274	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
emh203	0:6b1e6c9e48ba	3275	res = FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	3276	if (res == FR_NO_FILE) { /* Can create a new directory */
emh203	0:6b1e6c9e48ba	3277	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
emh203	0:6b1e6c9e48ba	3278	res = FR_OK;
emh203	0:6b1e6c9e48ba	3279	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
emh203	0:6b1e6c9e48ba	3280	if (dcl == 1) res = FR_INT_ERR;
emh203	0:6b1e6c9e48ba	3281	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	3282	if (res == FR_OK) /* Flush FAT */
emh203	0:6b1e6c9e48ba	3283	res = move_window(dj.fs, 0);
emh203	0:6b1e6c9e48ba	3284	if (res == FR_OK) { /* Initialize the new directory table */
emh203	0:6b1e6c9e48ba	3285	dsc = clust2sect(dj.fs, dcl);
emh203	0:6b1e6c9e48ba	3286	dir = dj.fs->win;
emh203	0:6b1e6c9e48ba	3287	mem_set(dir, 0, SS(dj.fs));
emh203	0:6b1e6c9e48ba	3288	mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */
emh203	0:6b1e6c9e48ba	3289	dir[DIR_Name] = '.';
emh203	0:6b1e6c9e48ba	3290	dir[DIR_Attr] = AM_DIR;
emh203	0:6b1e6c9e48ba	3291	ST_DWORD(dir+DIR_WrtTime, tim);
emh203	0:6b1e6c9e48ba	3292	ST_CLUST(dir, dcl);
emh203	0:6b1e6c9e48ba	3293	mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
emh203	0:6b1e6c9e48ba	3294	dir[33] = '.'; pcl = dj.sclust;
emh203	0:6b1e6c9e48ba	3295	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
emh203	0:6b1e6c9e48ba	3296	pcl = 0;
emh203	0:6b1e6c9e48ba	3297	ST_CLUST(dir+SZ_DIR, pcl);
emh203	0:6b1e6c9e48ba	3298	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
emh203	0:6b1e6c9e48ba	3299	dj.fs->winsect = dsc++;
emh203	0:6b1e6c9e48ba	3300	dj.fs->wflag = 1;
emh203	0:6b1e6c9e48ba	3301	res = move_window(dj.fs, 0);
emh203	0:6b1e6c9e48ba	3302	if (res != FR_OK) break;
emh203	0:6b1e6c9e48ba	3303	mem_set(dir, 0, SS(dj.fs));
emh203	0:6b1e6c9e48ba	3304	}
emh203	0:6b1e6c9e48ba	3305	}
emh203	0:6b1e6c9e48ba	3306	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
emh203	0:6b1e6c9e48ba	3307	if (res != FR_OK) {
emh203	0:6b1e6c9e48ba	3308	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
emh203	0:6b1e6c9e48ba	3309	} else {
emh203	0:6b1e6c9e48ba	3310	dir = dj.dir;
emh203	0:6b1e6c9e48ba	3311	dir[DIR_Attr] = AM_DIR; /* Attribute */
emh203	0:6b1e6c9e48ba	3312	ST_DWORD(dir+DIR_WrtTime, tim); /* Created time */
emh203	0:6b1e6c9e48ba	3313	ST_CLUST(dir, dcl); /* Table start cluster */
emh203	0:6b1e6c9e48ba	3314	dj.fs->wflag = 1;
emh203	0:6b1e6c9e48ba	3315	res = sync(dj.fs);
emh203	0:6b1e6c9e48ba	3316	}
emh203	0:6b1e6c9e48ba	3317	}
emh203	0:6b1e6c9e48ba	3318	FREE_BUF();
emh203	0:6b1e6c9e48ba	3319	}
emh203	0:6b1e6c9e48ba	3320
emh203	0:6b1e6c9e48ba	3321	LEAVE_FF(dj.fs, res);
emh203	0:6b1e6c9e48ba	3322	}
emh203	0:6b1e6c9e48ba	3323
emh203	0:6b1e6c9e48ba	3324
emh203	0:6b1e6c9e48ba	3325
emh203	0:6b1e6c9e48ba	3326
emh203	0:6b1e6c9e48ba	3327	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3328	/* Change Attribute */
emh203	0:6b1e6c9e48ba	3329	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3330
emh203	0:6b1e6c9e48ba	3331	FRESULT f_chmod (
emh203	0:6b1e6c9e48ba	3332	const TCHAR path, / Pointer to the file path */
emh203	0:6b1e6c9e48ba	3333	BYTE value, /* Attribute bits */
emh203	0:6b1e6c9e48ba	3334	BYTE mask /* Attribute mask to change */
emh203	0:6b1e6c9e48ba	3335	)
emh203	0:6b1e6c9e48ba	3336	{
emh203	0:6b1e6c9e48ba	3337	FRESULT res;
emh203	0:6b1e6c9e48ba	3338	eDIR dj;
emh203	0:6b1e6c9e48ba	3339	BYTE *dir;
emh203	0:6b1e6c9e48ba	3340	DEF_NAMEBUF;
emh203	0:6b1e6c9e48ba	3341
emh203	0:6b1e6c9e48ba	3342
emh203	0:6b1e6c9e48ba	3343	res = chk_mounted(&path, &dj.fs, 1);
emh203	0:6b1e6c9e48ba	3344	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3345	INIT_BUF(dj);
emh203	0:6b1e6c9e48ba	3346	res = follow_path(&dj, path); /* Follow the file path */
emh203	0:6b1e6c9e48ba	3347	FREE_BUF();
emh203	0:6b1e6c9e48ba	3348	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
emh203	0:6b1e6c9e48ba	3349	res = FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	3350	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3351	dir = dj.dir;
emh203	0:6b1e6c9e48ba	3352	if (!dir) { /* Is it a root directory? */
emh203	0:6b1e6c9e48ba	3353	res = FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	3354	} else { /* File or sub directory */
emh203	0:6b1e6c9e48ba	3355	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
emh203	0:6b1e6c9e48ba	3356	dir[DIR_Attr] = (value & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
emh203	0:6b1e6c9e48ba	3357	dj.fs->wflag = 1;
emh203	0:6b1e6c9e48ba	3358	res = sync(dj.fs);
emh203	0:6b1e6c9e48ba	3359	}
emh203	0:6b1e6c9e48ba	3360	}
emh203	0:6b1e6c9e48ba	3361	}
emh203	0:6b1e6c9e48ba	3362
emh203	0:6b1e6c9e48ba	3363	LEAVE_FF(dj.fs, res);
emh203	0:6b1e6c9e48ba	3364	}
emh203	0:6b1e6c9e48ba	3365
emh203	0:6b1e6c9e48ba	3366
emh203	0:6b1e6c9e48ba	3367
emh203	0:6b1e6c9e48ba	3368
emh203	0:6b1e6c9e48ba	3369	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3370	/* Change Timestamp */
emh203	0:6b1e6c9e48ba	3371	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3372
emh203	0:6b1e6c9e48ba	3373	FRESULT f_utime (
emh203	0:6b1e6c9e48ba	3374	const TCHAR path, / Pointer to the file/directory name */
emh203	0:6b1e6c9e48ba	3375	const FILINFO fno / Pointer to the time stamp to be set */
emh203	0:6b1e6c9e48ba	3376	)
emh203	0:6b1e6c9e48ba	3377	{
emh203	0:6b1e6c9e48ba	3378	FRESULT res;
emh203	0:6b1e6c9e48ba	3379	eDIR dj;
emh203	0:6b1e6c9e48ba	3380	BYTE *dir;
emh203	0:6b1e6c9e48ba	3381	DEF_NAMEBUF;
emh203	0:6b1e6c9e48ba	3382
emh203	0:6b1e6c9e48ba	3383
emh203	0:6b1e6c9e48ba	3384	res = chk_mounted(&path, &dj.fs, 1);
emh203	0:6b1e6c9e48ba	3385	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3386	INIT_BUF(dj);
emh203	0:6b1e6c9e48ba	3387	res = follow_path(&dj, path); /* Follow the file path */
emh203	0:6b1e6c9e48ba	3388	FREE_BUF();
emh203	0:6b1e6c9e48ba	3389	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
emh203	0:6b1e6c9e48ba	3390	res = FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	3391	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3392	dir = dj.dir;
emh203	0:6b1e6c9e48ba	3393	if (!dir) { /* Root directory */
emh203	0:6b1e6c9e48ba	3394	res = FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	3395	} else { /* File or sub-directory */
emh203	0:6b1e6c9e48ba	3396	ST_WORD(dir+DIR_WrtTime, fno->ftime);
emh203	0:6b1e6c9e48ba	3397	ST_WORD(dir+DIR_WrtDate, fno->fdate);
emh203	0:6b1e6c9e48ba	3398	dj.fs->wflag = 1;
emh203	0:6b1e6c9e48ba	3399	res = sync(dj.fs);
emh203	0:6b1e6c9e48ba	3400	}
emh203	0:6b1e6c9e48ba	3401	}
emh203	0:6b1e6c9e48ba	3402	}
emh203	0:6b1e6c9e48ba	3403
emh203	0:6b1e6c9e48ba	3404	LEAVE_FF(dj.fs, res);
emh203	0:6b1e6c9e48ba	3405	}
emh203	0:6b1e6c9e48ba	3406
emh203	0:6b1e6c9e48ba	3407
emh203	0:6b1e6c9e48ba	3408
emh203	0:6b1e6c9e48ba	3409
emh203	0:6b1e6c9e48ba	3410	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3411	/* Rename File/Directory */
emh203	0:6b1e6c9e48ba	3412	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3413
emh203	0:6b1e6c9e48ba	3414	FRESULT f_rename (
emh203	0:6b1e6c9e48ba	3415	const TCHAR path_old, / Pointer to the old name */
emh203	0:6b1e6c9e48ba	3416	const TCHAR path_new / Pointer to the new name */
emh203	0:6b1e6c9e48ba	3417	)
emh203	0:6b1e6c9e48ba	3418	{
emh203	0:6b1e6c9e48ba	3419	FRESULT res;
emh203	0:6b1e6c9e48ba	3420	eDIR djo, djn;
emh203	0:6b1e6c9e48ba	3421	BYTE buf[21], *dir;
emh203	0:6b1e6c9e48ba	3422	DWORD dw;
emh203	0:6b1e6c9e48ba	3423	DEF_NAMEBUF;
emh203	0:6b1e6c9e48ba	3424
emh203	0:6b1e6c9e48ba	3425
emh203	0:6b1e6c9e48ba	3426	res = chk_mounted(&path_old, &djo.fs, 1);
emh203	0:6b1e6c9e48ba	3427	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3428	djn.fs = djo.fs;
emh203	0:6b1e6c9e48ba	3429	INIT_BUF(djo);
emh203	0:6b1e6c9e48ba	3430	res = follow_path(&djo, path_old); /* Check old object */
emh203	0:6b1e6c9e48ba	3431	if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
emh203	0:6b1e6c9e48ba	3432	res = FR_INVALID_NAME;
emh203	0:6b1e6c9e48ba	3433	#if _FS_SHARE
emh203	0:6b1e6c9e48ba	3434	if (res == FR_OK) res = chk_lock(&djo, 2);
emh203	0:6b1e6c9e48ba	3435	#endif
emh203	0:6b1e6c9e48ba	3436	if (res == FR_OK) { /* Old object is found */
emh203	0:6b1e6c9e48ba	3437	if (!djo.dir) { /* Is root dir? */
emh203	0:6b1e6c9e48ba	3438	res = FR_NO_FILE;
emh203	0:6b1e6c9e48ba	3439	} else {
emh203	0:6b1e6c9e48ba	3440	mem_cpy(buf, djo.dir+DIR_Attr, 21); /* Save the object information except for name */
emh203	0:6b1e6c9e48ba	3441	mem_cpy(&djn, &djo, sizeof(eDIR)); /* Check new object */
emh203	0:6b1e6c9e48ba	3442	res = follow_path(&djn, path_new);
emh203	0:6b1e6c9e48ba	3443	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
emh203	0:6b1e6c9e48ba	3444	if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
emh203	0:6b1e6c9e48ba	3445	/* Start critical section that any interruption or error can cause cross-link */
emh203	0:6b1e6c9e48ba	3446	res = dir_register(&djn); /* Register the new entry */
emh203	0:6b1e6c9e48ba	3447	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3448	dir = djn.dir; /* Copy object information except for name */
emh203	0:6b1e6c9e48ba	3449	mem_cpy(dir+13, buf+2, 19);
emh203	0:6b1e6c9e48ba	3450	dir[DIR_Attr] = buf[0] \| AM_ARC;
emh203	0:6b1e6c9e48ba	3451	djo.fs->wflag = 1;
emh203	0:6b1e6c9e48ba	3452	if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) { /* Update .. entry in the directory if needed */
emh203	0:6b1e6c9e48ba	3453	dw = clust2sect(djn.fs, LD_CLUST(dir));
emh203	0:6b1e6c9e48ba	3454	if (!dw) {
emh203	0:6b1e6c9e48ba	3455	res = FR_INT_ERR;
emh203	0:6b1e6c9e48ba	3456	} else {
emh203	0:6b1e6c9e48ba	3457	res = move_window(djn.fs, dw);
emh203	0:6b1e6c9e48ba	3458	dir = djn.fs->win+SZ_DIR; /* .. entry */
emh203	0:6b1e6c9e48ba	3459	if (res == FR_OK && dir[1] == '.') {
emh203	0:6b1e6c9e48ba	3460	dw = (djn.fs->fs_type == FS_FAT32 && djn.sclust == djn.fs->dirbase) ? 0 : djn.sclust;
emh203	0:6b1e6c9e48ba	3461	ST_CLUST(dir, dw);
emh203	0:6b1e6c9e48ba	3462	djn.fs->wflag = 1;
emh203	0:6b1e6c9e48ba	3463	}
emh203	0:6b1e6c9e48ba	3464	}
emh203	0:6b1e6c9e48ba	3465	}
emh203	0:6b1e6c9e48ba	3466	if (res == FR_OK) {
emh203	0:6b1e6c9e48ba	3467	res = dir_remove(&djo); /* Remove old entry */
emh203	0:6b1e6c9e48ba	3468	if (res == FR_OK)
emh203	0:6b1e6c9e48ba	3469	res = sync(djo.fs);
emh203	0:6b1e6c9e48ba	3470	}
emh203	0:6b1e6c9e48ba	3471	}
emh203	0:6b1e6c9e48ba	3472	/* End critical section */
emh203	0:6b1e6c9e48ba	3473	}
emh203	0:6b1e6c9e48ba	3474	}
emh203	0:6b1e6c9e48ba	3475	}
emh203	0:6b1e6c9e48ba	3476	FREE_BUF();
emh203	0:6b1e6c9e48ba	3477	}
emh203	0:6b1e6c9e48ba	3478	LEAVE_FF(djo.fs, res);
emh203	0:6b1e6c9e48ba	3479	}
emh203	0:6b1e6c9e48ba	3480
emh203	0:6b1e6c9e48ba	3481	#endif /* !_FS_READONLY */
emh203	0:6b1e6c9e48ba	3482	#endif /* _FS_MINIMIZE == 0 */
emh203	0:6b1e6c9e48ba	3483	#endif /* _FS_MINIMIZE <= 1 */
emh203	0:6b1e6c9e48ba	3484	#endif /* _FS_MINIMIZE <= 2 */
emh203	0:6b1e6c9e48ba	3485
emh203	0:6b1e6c9e48ba	3486
emh203	0:6b1e6c9e48ba	3487
emh203	0:6b1e6c9e48ba	3488	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3489	/* Forward data to the stream directly (available on only tiny cfg) */
emh203	0:6b1e6c9e48ba	3490	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3491	#if _USE_FORWARD && _FS_TINY
emh203	0:6b1e6c9e48ba	3492
emh203	0:6b1e6c9e48ba	3493	FRESULT f_forward (
emh203	0:6b1e6c9e48ba	3494	FIL fp, / Pointer to the file object */
emh203	0:6b1e6c9e48ba	3495	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
emh203	0:6b1e6c9e48ba	3496	UINT btr, /* Number of bytes to forward */
emh203	0:6b1e6c9e48ba	3497	UINT bf / Pointer to number of bytes forwarded */
emh203	0:6b1e6c9e48ba	3498	)
emh203	0:6b1e6c9e48ba	3499	{
emh203	0:6b1e6c9e48ba	3500	FRESULT res;
emh203	0:6b1e6c9e48ba	3501	DWORD remain, clst, sect;
emh203	0:6b1e6c9e48ba	3502	UINT rcnt;
emh203	0:6b1e6c9e48ba	3503	BYTE csect;
emh203	0:6b1e6c9e48ba	3504
emh203	0:6b1e6c9e48ba	3505
emh203	0:6b1e6c9e48ba	3506	bf = 0; / Initialize byte counter */
emh203	0:6b1e6c9e48ba	3507
emh203	0:6b1e6c9e48ba	3508	res = validate(fp->fs, fp->id); /* Check validity of the object */
emh203	0:6b1e6c9e48ba	3509	if (res != FR_OK) LEAVE_FF(fp->fs, res);
emh203	0:6b1e6c9e48ba	3510	if (fp->flag & FA__ERROR) /* Check error flag */
emh203	0:6b1e6c9e48ba	3511	LEAVE_FF(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	3512	if (!(fp->flag & FA_READ)) /* Check access mode */
emh203	0:6b1e6c9e48ba	3513	LEAVE_FF(fp->fs, FR_DENIED);
emh203	0:6b1e6c9e48ba	3514
emh203	0:6b1e6c9e48ba	3515	remain = fp->fsize - fp->fptr;
emh203	0:6b1e6c9e48ba	3516	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
emh203	0:6b1e6c9e48ba	3517
emh203	0:6b1e6c9e48ba	3518	for ( ; btr && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
emh203	0:6b1e6c9e48ba	3519	fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
emh203	0:6b1e6c9e48ba	3520	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
emh203	0:6b1e6c9e48ba	3521	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
emh203	0:6b1e6c9e48ba	3522	if (!csect) { /* On the cluster boundary? */
emh203	0:6b1e6c9e48ba	3523	clst = (fp->fptr == 0) ? /* On the top of the file? */
emh203	0:6b1e6c9e48ba	3524	fp->sclust : get_fat(fp->fs, fp->clust);
emh203	0:6b1e6c9e48ba	3525	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	3526	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	3527	fp->clust = clst; /* Update current cluster */
emh203	0:6b1e6c9e48ba	3528	}
emh203	0:6b1e6c9e48ba	3529	}
emh203	0:6b1e6c9e48ba	3530	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
emh203	0:6b1e6c9e48ba	3531	if (!sect) ABORT(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	3532	sect += csect;
emh203	0:6b1e6c9e48ba	3533	if (move_window(fp->fs, sect)) /* Move sector window */
emh203	0:6b1e6c9e48ba	3534	ABORT(fp->fs, FR_DISK_ERR);
emh203	0:6b1e6c9e48ba	3535	fp->dsect = sect;
emh203	0:6b1e6c9e48ba	3536	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
emh203	0:6b1e6c9e48ba	3537	if (rcnt > btr) rcnt = btr;
emh203	0:6b1e6c9e48ba	3538	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
emh203	0:6b1e6c9e48ba	3539	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
emh203	0:6b1e6c9e48ba	3540	}
emh203	0:6b1e6c9e48ba	3541
emh203	0:6b1e6c9e48ba	3542	LEAVE_FF(fp->fs, FR_OK);
emh203	0:6b1e6c9e48ba	3543	}
emh203	0:6b1e6c9e48ba	3544	#endif /* _USE_FORWARD */
emh203	0:6b1e6c9e48ba	3545
emh203	0:6b1e6c9e48ba	3546
emh203	0:6b1e6c9e48ba	3547
emh203	0:6b1e6c9e48ba	3548	#if _USE_MKFS && !_FS_READONLY
emh203	0:6b1e6c9e48ba	3549	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3550	/* Create File System on the Drive */
emh203	0:6b1e6c9e48ba	3551	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3552	#define N_ROOTDIR 512 /* Number of root dir entries for FAT12/16 */
emh203	0:6b1e6c9e48ba	3553	#define N_FATS 1 /* Number of FAT copies (1 or 2) */
emh203	0:6b1e6c9e48ba	3554
emh203	0:6b1e6c9e48ba	3555
emh203	0:6b1e6c9e48ba	3556	FRESULT f_mkfs (
emh203	0:6b1e6c9e48ba	3557	BYTE drv, /* Logical drive number */
emh203	0:6b1e6c9e48ba	3558	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
emh203	0:6b1e6c9e48ba	3559	UINT au /* Allocation unit size [bytes] */
emh203	0:6b1e6c9e48ba	3560	)
emh203	0:6b1e6c9e48ba	3561	{
emh203	0:6b1e6c9e48ba	3562	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
emh203	0:6b1e6c9e48ba	3563	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
emh203	0:6b1e6c9e48ba	3564	BYTE fmt, md, sys, *tbl, pdrv, part;
emh203	0:6b1e6c9e48ba	3565	DWORD n_clst, vs, n, wsect;
emh203	0:6b1e6c9e48ba	3566	UINT i;
emh203	0:6b1e6c9e48ba	3567	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
emh203	0:6b1e6c9e48ba	3568	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
emh203	0:6b1e6c9e48ba	3569	FATFS *fs;
emh203	0:6b1e6c9e48ba	3570	DSTATUS stat;
emh203	0:6b1e6c9e48ba	3571
emh203	0:6b1e6c9e48ba	3572
emh203	0:6b1e6c9e48ba	3573	/* Check mounted drive and clear work area */
emh203	0:6b1e6c9e48ba	3574	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
emh203	0:6b1e6c9e48ba	3575	if (sfd > 1) return FR_INVALID_PARAMETER;
emh203	0:6b1e6c9e48ba	3576	if (au & (au - 1)) return FR_INVALID_PARAMETER;
emh203	0:6b1e6c9e48ba	3577	fs = FatFs[drv];
emh203	0:6b1e6c9e48ba	3578	if (!fs) return FR_NOT_ENABLED;
emh203	0:6b1e6c9e48ba	3579	fs->fs_type = 0;
emh203	0:6b1e6c9e48ba	3580	pdrv = LD2PD(drv); /* Physical drive */
emh203	0:6b1e6c9e48ba	3581	part = LD2PT(drv); /* Partition (0:auto detect, 1-4:get from partition table)*/
emh203	0:6b1e6c9e48ba	3582
emh203	0:6b1e6c9e48ba	3583	/* Get disk statics */
emh203	0:6b1e6c9e48ba	3584	stat = disk_initialize(pdrv);
emh203	0:6b1e6c9e48ba	3585	if (stat & STA_NOINIT) return FR_NOT_READY;
emh203	0:6b1e6c9e48ba	3586	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
emh203	0:6b1e6c9e48ba	3587	#if _MAX_SS != 512 /* Get disk sector size */
emh203	0:6b1e6c9e48ba	3588	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS)
emh203	0:6b1e6c9e48ba	3589	return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	3590	#endif
emh203	0:6b1e6c9e48ba	3591	if (_MULTI_PARTITION && part) {
emh203	0:6b1e6c9e48ba	3592	/* Get partition information from partition table in the MBR */
emh203	0:6b1e6c9e48ba	3593	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	3594	if (LD_WORD(fs->win+BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
emh203	0:6b1e6c9e48ba	3595	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
emh203	0:6b1e6c9e48ba	3596	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
emh203	0:6b1e6c9e48ba	3597	b_vol = LD_DWORD(tbl+8); /* Volume start sector */
emh203	0:6b1e6c9e48ba	3598	n_vol = LD_DWORD(tbl+12); /* Volume size */
emh203	0:6b1e6c9e48ba	3599	} else {
emh203	0:6b1e6c9e48ba	3600	/* Create a partition in this function */
emh203	0:6b1e6c9e48ba	3601	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
emh203	0:6b1e6c9e48ba	3602	return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	3603	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
emh203	0:6b1e6c9e48ba	3604	n_vol -= b_vol; /* Volume size */
emh203	0:6b1e6c9e48ba	3605	}
emh203	0:6b1e6c9e48ba	3606
emh203	0:6b1e6c9e48ba	3607	if (!au) { /* AU auto selection */
emh203	0:6b1e6c9e48ba	3608	vs = n_vol / (2000 / (SS(fs) / 512));
emh203	0:6b1e6c9e48ba	3609	for (i = 0; vs < vst[i]; i++) ;
emh203	0:6b1e6c9e48ba	3610	au = cst[i];
emh203	0:6b1e6c9e48ba	3611	}
emh203	0:6b1e6c9e48ba	3612	au /= SS(fs); /* Number of sectors per cluster */
emh203	0:6b1e6c9e48ba	3613	if (au == 0) au = 1;
emh203	0:6b1e6c9e48ba	3614	if (au > 128) au = 128;
emh203	0:6b1e6c9e48ba	3615
emh203	0:6b1e6c9e48ba	3616	/* Pre-compute number of clusters and FAT syb-type */
emh203	0:6b1e6c9e48ba	3617	n_clst = n_vol / au;
emh203	0:6b1e6c9e48ba	3618	fmt = FS_FAT12;
emh203	0:6b1e6c9e48ba	3619	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
emh203	0:6b1e6c9e48ba	3620	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
emh203	0:6b1e6c9e48ba	3621
emh203	0:6b1e6c9e48ba	3622	/* Determine offset and size of FAT structure */
emh203	0:6b1e6c9e48ba	3623	if (fmt == FS_FAT32) {
emh203	0:6b1e6c9e48ba	3624	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
emh203	0:6b1e6c9e48ba	3625	n_rsv = 32;
emh203	0:6b1e6c9e48ba	3626	n_dir = 0;
emh203	0:6b1e6c9e48ba	3627	} else {
emh203	0:6b1e6c9e48ba	3628	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
emh203	0:6b1e6c9e48ba	3629	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
emh203	0:6b1e6c9e48ba	3630	n_rsv = 1;
emh203	0:6b1e6c9e48ba	3631	n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
emh203	0:6b1e6c9e48ba	3632	}
emh203	0:6b1e6c9e48ba	3633	b_fat = b_vol + n_rsv; /* FAT area start sector */
emh203	0:6b1e6c9e48ba	3634	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
emh203	0:6b1e6c9e48ba	3635	b_data = b_dir + n_dir; /* Data area start sector */
emh203	0:6b1e6c9e48ba	3636	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
emh203	0:6b1e6c9e48ba	3637
emh203	0:6b1e6c9e48ba	3638	/* Align data start sector to erase block boundary (for flash memory media) */
emh203	0:6b1e6c9e48ba	3639	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
emh203	0:6b1e6c9e48ba	3640	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
emh203	0:6b1e6c9e48ba	3641	n = (n - b_data) / N_FATS;
emh203	0:6b1e6c9e48ba	3642	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
emh203	0:6b1e6c9e48ba	3643	n_rsv += n;
emh203	0:6b1e6c9e48ba	3644	b_fat += n;
emh203	0:6b1e6c9e48ba	3645	} else { /* FAT12/16: Expand FAT size */
emh203	0:6b1e6c9e48ba	3646	n_fat += n;
emh203	0:6b1e6c9e48ba	3647	}
emh203	0:6b1e6c9e48ba	3648
emh203	0:6b1e6c9e48ba	3649	/* Determine number of clusters and final check of validity of the FAT sub-type */
emh203	0:6b1e6c9e48ba	3650	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
emh203	0:6b1e6c9e48ba	3651	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
emh203	0:6b1e6c9e48ba	3652	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
emh203	0:6b1e6c9e48ba	3653	return FR_MKFS_ABORTED;
emh203	0:6b1e6c9e48ba	3654
emh203	0:6b1e6c9e48ba	3655	switch (fmt) { /* Determine system ID for partition table */
emh203	0:6b1e6c9e48ba	3656	case FS_FAT12: sys = 0x01; break;
emh203	0:6b1e6c9e48ba	3657	case FS_FAT16: sys = (n_vol < 0x10000) ? 0x04 : 0x06; break;
emh203	0:6b1e6c9e48ba	3658	default: sys = 0x0C;
emh203	0:6b1e6c9e48ba	3659	}
emh203	0:6b1e6c9e48ba	3660
emh203	0:6b1e6c9e48ba	3661	if (_MULTI_PARTITION && part) {
emh203	0:6b1e6c9e48ba	3662	/* Update system ID in the partition table */
emh203	0:6b1e6c9e48ba	3663	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
emh203	0:6b1e6c9e48ba	3664	tbl[4] = sys;
emh203	0:6b1e6c9e48ba	3665	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	3666	md = 0xF8;
emh203	0:6b1e6c9e48ba	3667	} else {
emh203	0:6b1e6c9e48ba	3668	if (sfd) { /* No patition table (SFD) */
emh203	0:6b1e6c9e48ba	3669	md = 0xF0;
emh203	0:6b1e6c9e48ba	3670	} else { /* Create partition table (FDISK) */
emh203	0:6b1e6c9e48ba	3671	mem_set(fs->win, 0, SS(fs));
emh203	0:6b1e6c9e48ba	3672	tbl = fs->win+MBR_Table; /* Create partiton table for single partition in the drive */
emh203	0:6b1e6c9e48ba	3673	tbl[1] = 1; /* Partition start head */
emh203	0:6b1e6c9e48ba	3674	tbl[2] = 1; /* Partition start sector */
emh203	0:6b1e6c9e48ba	3675	tbl[3] = 0; /* Partition start cylinder */
emh203	0:6b1e6c9e48ba	3676	tbl[4] = sys; /* System type */
emh203	0:6b1e6c9e48ba	3677	tbl[5] = 254; /* Partition end head */
emh203	0:6b1e6c9e48ba	3678	n = (b_vol + n_vol) / 63 / 255;
emh203	0:6b1e6c9e48ba	3679	tbl[6] = (BYTE)((n >> 2) \| 63); /* Partiiton end sector */
emh203	0:6b1e6c9e48ba	3680	tbl[7] = (BYTE)n; /* End cylinder */
emh203	0:6b1e6c9e48ba	3681	ST_DWORD(tbl+8, 63); /* Partition start in LBA */
emh203	0:6b1e6c9e48ba	3682	ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
emh203	0:6b1e6c9e48ba	3683	ST_WORD(fs->win+BS_55AA, 0xAA55); /* MBR signature */
emh203	0:6b1e6c9e48ba	3684	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR sector */
emh203	0:6b1e6c9e48ba	3685	return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	3686	md = 0xF8;
emh203	0:6b1e6c9e48ba	3687	}
emh203	0:6b1e6c9e48ba	3688	}
emh203	0:6b1e6c9e48ba	3689
emh203	0:6b1e6c9e48ba	3690	/* Create BPB in the VBR */
emh203	0:6b1e6c9e48ba	3691	tbl = fs->win; /* Clear sector */
emh203	0:6b1e6c9e48ba	3692	mem_set(tbl, 0, SS(fs));
emh203	0:6b1e6c9e48ba	3693	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
emh203	0:6b1e6c9e48ba	3694	i = SS(fs); /* Sector size */
emh203	0:6b1e6c9e48ba	3695	ST_WORD(tbl+BPB_BytsPerSec, i);
emh203	0:6b1e6c9e48ba	3696	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
emh203	0:6b1e6c9e48ba	3697	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
emh203	0:6b1e6c9e48ba	3698	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
emh203	0:6b1e6c9e48ba	3699	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of rootdir entries */
emh203	0:6b1e6c9e48ba	3700	ST_WORD(tbl+BPB_RootEntCnt, i);
emh203	0:6b1e6c9e48ba	3701	if (n_vol < 0x10000) { /* Number of total sectors */
emh203	0:6b1e6c9e48ba	3702	ST_WORD(tbl+BPB_TotSec16, n_vol);
emh203	0:6b1e6c9e48ba	3703	} else {
emh203	0:6b1e6c9e48ba	3704	ST_DWORD(tbl+BPB_TotSec32, n_vol);
emh203	0:6b1e6c9e48ba	3705	}
emh203	0:6b1e6c9e48ba	3706	tbl[BPB_Media] = md; /* Media descriptor */
emh203	0:6b1e6c9e48ba	3707	ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
emh203	0:6b1e6c9e48ba	3708	ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
emh203	0:6b1e6c9e48ba	3709	ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
emh203	0:6b1e6c9e48ba	3710	n = get_fattime(); /* Use current time as VSN */
emh203	0:6b1e6c9e48ba	3711	if (fmt == FS_FAT32) {
emh203	0:6b1e6c9e48ba	3712	ST_DWORD(tbl+BS_VolID32, n); /* VSN */
emh203	0:6b1e6c9e48ba	3713	ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
emh203	0:6b1e6c9e48ba	3714	ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
emh203	0:6b1e6c9e48ba	3715	ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (VBR+1) */
emh203	0:6b1e6c9e48ba	3716	ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
emh203	0:6b1e6c9e48ba	3717	tbl[BS_DrvNum32] = 0x80; /* Drive number */
emh203	0:6b1e6c9e48ba	3718	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
emh203	0:6b1e6c9e48ba	3719	mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
emh203	0:6b1e6c9e48ba	3720	} else {
emh203	0:6b1e6c9e48ba	3721	ST_DWORD(tbl+BS_VolID, n); /* VSN */
emh203	0:6b1e6c9e48ba	3722	ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
emh203	0:6b1e6c9e48ba	3723	tbl[BS_DrvNum] = 0x80; /* Drive number */
emh203	0:6b1e6c9e48ba	3724	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
emh203	0:6b1e6c9e48ba	3725	mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
emh203	0:6b1e6c9e48ba	3726	}
emh203	0:6b1e6c9e48ba	3727	ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
emh203	0:6b1e6c9e48ba	3728	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
emh203	0:6b1e6c9e48ba	3729	return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	3730	if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR+6) */
emh203	0:6b1e6c9e48ba	3731	disk_write(pdrv, tbl, b_vol + 6, 1);
emh203	0:6b1e6c9e48ba	3732
emh203	0:6b1e6c9e48ba	3733	/* Initialize FAT area */
emh203	0:6b1e6c9e48ba	3734	wsect = b_fat;
emh203	0:6b1e6c9e48ba	3735	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
emh203	0:6b1e6c9e48ba	3736	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
emh203	0:6b1e6c9e48ba	3737	n = md; /* Media descriptor byte */
emh203	0:6b1e6c9e48ba	3738	if (fmt != FS_FAT32) {
emh203	0:6b1e6c9e48ba	3739	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
emh203	0:6b1e6c9e48ba	3740	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
emh203	0:6b1e6c9e48ba	3741	} else {
emh203	0:6b1e6c9e48ba	3742	n \|= 0xFFFFFF00;
emh203	0:6b1e6c9e48ba	3743	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
emh203	0:6b1e6c9e48ba	3744	ST_DWORD(tbl+4, 0xFFFFFFFF);
emh203	0:6b1e6c9e48ba	3745	ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
emh203	0:6b1e6c9e48ba	3746	}
emh203	0:6b1e6c9e48ba	3747	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
emh203	0:6b1e6c9e48ba	3748	return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	3749	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
emh203	0:6b1e6c9e48ba	3750	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
emh203	0:6b1e6c9e48ba	3751	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
emh203	0:6b1e6c9e48ba	3752	return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	3753	}
emh203	0:6b1e6c9e48ba	3754	}
emh203	0:6b1e6c9e48ba	3755
emh203	0:6b1e6c9e48ba	3756	/* Initialize root directory */
emh203	0:6b1e6c9e48ba	3757	i = (fmt == FS_FAT32) ? au : n_dir;
emh203	0:6b1e6c9e48ba	3758	do {
emh203	0:6b1e6c9e48ba	3759	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
emh203	0:6b1e6c9e48ba	3760	return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	3761	} while (--i);
emh203	0:6b1e6c9e48ba	3762
emh203	0:6b1e6c9e48ba	3763	#if _USE_ERASE /* Erase data area if needed */
emh203	0:6b1e6c9e48ba	3764	{
emh203	0:6b1e6c9e48ba	3765	DWORD eb[2];
emh203	0:6b1e6c9e48ba	3766
emh203	0:6b1e6c9e48ba	3767	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
emh203	0:6b1e6c9e48ba	3768	disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
emh203	0:6b1e6c9e48ba	3769	}
emh203	0:6b1e6c9e48ba	3770	#endif
emh203	0:6b1e6c9e48ba	3771
emh203	0:6b1e6c9e48ba	3772	/* Create FSInfo if needed */
emh203	0:6b1e6c9e48ba	3773	if (fmt == FS_FAT32) {
emh203	0:6b1e6c9e48ba	3774	ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
emh203	0:6b1e6c9e48ba	3775	ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
emh203	0:6b1e6c9e48ba	3776	ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
emh203	0:6b1e6c9e48ba	3777	ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
emh203	0:6b1e6c9e48ba	3778	ST_WORD(tbl+BS_55AA, 0xAA55);
emh203	0:6b1e6c9e48ba	3779	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
emh203	0:6b1e6c9e48ba	3780	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
emh203	0:6b1e6c9e48ba	3781	}
emh203	0:6b1e6c9e48ba	3782
emh203	0:6b1e6c9e48ba	3783	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	3784	}
emh203	0:6b1e6c9e48ba	3785
emh203	0:6b1e6c9e48ba	3786
emh203	0:6b1e6c9e48ba	3787	#if _MULTI_PARTITION == 2
emh203	0:6b1e6c9e48ba	3788	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3789	/* Divide Physical Drive */
emh203	0:6b1e6c9e48ba	3790	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3791
emh203	0:6b1e6c9e48ba	3792	FRESULT f_fdisk (
emh203	0:6b1e6c9e48ba	3793	BYTE pdrv, /* Physical drive number */
emh203	0:6b1e6c9e48ba	3794	const DWORD szt[], /* Pointer to the size table for each partitions */
emh203	0:6b1e6c9e48ba	3795	void* work /* Pointer to the working buffer */
emh203	0:6b1e6c9e48ba	3796	)
emh203	0:6b1e6c9e48ba	3797	{
emh203	0:6b1e6c9e48ba	3798	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
emh203	0:6b1e6c9e48ba	3799	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
emh203	0:6b1e6c9e48ba	3800	DSTATUS stat;
emh203	0:6b1e6c9e48ba	3801	DWORD sz_disk, sz_part, s_part;
emh203	0:6b1e6c9e48ba	3802
emh203	0:6b1e6c9e48ba	3803
emh203	0:6b1e6c9e48ba	3804	stat = disk_initialize(pdrv);
emh203	0:6b1e6c9e48ba	3805	if (stat & STA_NOINIT) return FR_NOT_READY;
emh203	0:6b1e6c9e48ba	3806	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
emh203	0:6b1e6c9e48ba	3807	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
emh203	0:6b1e6c9e48ba	3808
emh203	0:6b1e6c9e48ba	3809	/* Determine CHS in the table regardless of the drive geometry */
emh203	0:6b1e6c9e48ba	3810	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
emh203	0:6b1e6c9e48ba	3811	if (n == 256) n--;
emh203	0:6b1e6c9e48ba	3812	e_hd = n - 1;
emh203	0:6b1e6c9e48ba	3813	sz_cyl = 63 * n;
emh203	0:6b1e6c9e48ba	3814	tot_cyl = sz_disk / sz_cyl;
emh203	0:6b1e6c9e48ba	3815
emh203	0:6b1e6c9e48ba	3816	/* Create partition table */
emh203	0:6b1e6c9e48ba	3817	mem_set(buf, 0, _MAX_SS);
emh203	0:6b1e6c9e48ba	3818	p = buf + MBR_Table; b_cyl = 0;
emh203	0:6b1e6c9e48ba	3819	for (i = 0; i < 4; i++, p += SZ_PTE) {
emh203	0:6b1e6c9e48ba	3820	p_cyl = (szt[i] <= 100) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
emh203	0:6b1e6c9e48ba	3821	if (!p_cyl) continue;
emh203	0:6b1e6c9e48ba	3822	s_part = (DWORD)sz_cyl * b_cyl;
emh203	0:6b1e6c9e48ba	3823	sz_part = (DWORD)sz_cyl * p_cyl;
emh203	0:6b1e6c9e48ba	3824	if (i == 0) { /* Exclude first track of cylinder 0 */
emh203	0:6b1e6c9e48ba	3825	s_hd = 1;
emh203	0:6b1e6c9e48ba	3826	s_part += 63; sz_part -= 63;
emh203	0:6b1e6c9e48ba	3827	} else {
emh203	0:6b1e6c9e48ba	3828	s_hd = 0;
emh203	0:6b1e6c9e48ba	3829	}
emh203	0:6b1e6c9e48ba	3830	e_cyl = b_cyl + p_cyl - 1;
emh203	0:6b1e6c9e48ba	3831	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
emh203	0:6b1e6c9e48ba	3832
emh203	0:6b1e6c9e48ba	3833	/* Set partition table */
emh203	0:6b1e6c9e48ba	3834	p[1] = s_hd; /* Start head */
emh203	0:6b1e6c9e48ba	3835	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
emh203	0:6b1e6c9e48ba	3836	p[3] = (BYTE)b_cyl; /* Start cylinder */
emh203	0:6b1e6c9e48ba	3837	p[4] = 0x06; /* System type (temporary setting) */
emh203	0:6b1e6c9e48ba	3838	p[5] = e_hd; /* End head */
emh203	0:6b1e6c9e48ba	3839	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
emh203	0:6b1e6c9e48ba	3840	p[7] = (BYTE)e_cyl; /* End cylinder */
emh203	0:6b1e6c9e48ba	3841	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
emh203	0:6b1e6c9e48ba	3842	ST_DWORD(p + 12, sz_part); /* Partition size */
emh203	0:6b1e6c9e48ba	3843
emh203	0:6b1e6c9e48ba	3844	/* Next partition */
emh203	0:6b1e6c9e48ba	3845	b_cyl += p_cyl;
emh203	0:6b1e6c9e48ba	3846	}
emh203	0:6b1e6c9e48ba	3847	ST_WORD(p, 0xAA55);
emh203	0:6b1e6c9e48ba	3848
emh203	0:6b1e6c9e48ba	3849	/* Write it to the MBR */
emh203	0:6b1e6c9e48ba	3850	return (disk_write(pdrv, buf, 0, 1) \|\| disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
emh203	0:6b1e6c9e48ba	3851	}
emh203	0:6b1e6c9e48ba	3852
emh203	0:6b1e6c9e48ba	3853
emh203	0:6b1e6c9e48ba	3854	#endif /* _MULTI_PARTITION == 2 */
emh203	0:6b1e6c9e48ba	3855	#endif /* _USE_MKFS && !_FS_READONLY */
emh203	0:6b1e6c9e48ba	3856
emh203	0:6b1e6c9e48ba	3857
emh203	0:6b1e6c9e48ba	3858
emh203	0:6b1e6c9e48ba	3859
emh203	0:6b1e6c9e48ba	3860	#if _USE_STRFUNC
emh203	0:6b1e6c9e48ba	3861	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3862	/* Get a string from the file */
emh203	0:6b1e6c9e48ba	3863	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3864	TCHAR* f_gets (
emh203	0:6b1e6c9e48ba	3865	TCHAR* buff, /* Pointer to the string buffer to read */
emh203	0:6b1e6c9e48ba	3866	int len, /* Size of string buffer (characters) */
emh203	0:6b1e6c9e48ba	3867	FIL* fil /* Pointer to the file object */
emh203	0:6b1e6c9e48ba	3868	)
emh203	0:6b1e6c9e48ba	3869	{
emh203	0:6b1e6c9e48ba	3870	int n = 0;
emh203	0:6b1e6c9e48ba	3871	TCHAR c, *p = buff;
emh203	0:6b1e6c9e48ba	3872	BYTE s[2];
emh203	0:6b1e6c9e48ba	3873	UINT rc;
emh203	0:6b1e6c9e48ba	3874
emh203	0:6b1e6c9e48ba	3875
emh203	0:6b1e6c9e48ba	3876	while (n < len - 1) { /* Read bytes until buffer gets filled */
emh203	0:6b1e6c9e48ba	3877	f_read(fil, s, 1, &rc);
emh203	0:6b1e6c9e48ba	3878	if (rc != 1) break; /* Break on EOF or error */
emh203	0:6b1e6c9e48ba	3879	c = s[0];
emh203	0:6b1e6c9e48ba	3880	#if _LFN_UNICODE /* Read a character in UTF-8 encoding */
emh203	0:6b1e6c9e48ba	3881	if (c >= 0x80) {
emh203	0:6b1e6c9e48ba	3882	if (c < 0xC0) continue; /* Skip stray trailer */
emh203	0:6b1e6c9e48ba	3883	if (c < 0xE0) { /* Two-byte sequense */
emh203	0:6b1e6c9e48ba	3884	f_read(fil, s, 1, &rc);
emh203	0:6b1e6c9e48ba	3885	if (rc != 1) break;
emh203	0:6b1e6c9e48ba	3886	c = ((c & 0x1F) << 6) \| (s[0] & 0x3F);
emh203	0:6b1e6c9e48ba	3887	if (c < 0x80) c = '?';
emh203	0:6b1e6c9e48ba	3888	} else {
emh203	0:6b1e6c9e48ba	3889	if (c < 0xF0) { /* Three-byte sequense */
emh203	0:6b1e6c9e48ba	3890	f_read(fil, s, 2, &rc);
emh203	0:6b1e6c9e48ba	3891	if (rc != 2) break;
emh203	0:6b1e6c9e48ba	3892	c = (c << 12) \| ((s[0] & 0x3F) << 6) \| (s[1] & 0x3F);
emh203	0:6b1e6c9e48ba	3893	if (c < 0x800) c = '?';
emh203	0:6b1e6c9e48ba	3894	} else { /* Reject four-byte sequense */
emh203	0:6b1e6c9e48ba	3895	c = '?';
emh203	0:6b1e6c9e48ba	3896	}
emh203	0:6b1e6c9e48ba	3897	}
emh203	0:6b1e6c9e48ba	3898	}
emh203	0:6b1e6c9e48ba	3899	#endif
emh203	0:6b1e6c9e48ba	3900	#if _USE_STRFUNC >= 2
emh203	0:6b1e6c9e48ba	3901	if (c == '\r') continue; /* Strip '\r' */
emh203	0:6b1e6c9e48ba	3902	#endif
emh203	0:6b1e6c9e48ba	3903	*p++ = c;
emh203	0:6b1e6c9e48ba	3904	n++;
emh203	0:6b1e6c9e48ba	3905	if (c == '\n') break; /* Break on EOL */
emh203	0:6b1e6c9e48ba	3906	}
emh203	0:6b1e6c9e48ba	3907	*p = 0;
emh203	0:6b1e6c9e48ba	3908	return n ? buff : 0; /* When no data read (eof or error), return with error. */
emh203	0:6b1e6c9e48ba	3909	}
emh203	0:6b1e6c9e48ba	3910
emh203	0:6b1e6c9e48ba	3911
emh203	0:6b1e6c9e48ba	3912
emh203	0:6b1e6c9e48ba	3913	#if !_FS_READONLY
emh203	0:6b1e6c9e48ba	3914	#include <stdarg.h>
emh203	0:6b1e6c9e48ba	3915	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3916	/* Put a character to the file */
emh203	0:6b1e6c9e48ba	3917	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3918	int f_putc (
emh203	0:6b1e6c9e48ba	3919	TCHAR c, /* A character to be output */
emh203	0:6b1e6c9e48ba	3920	FIL* fil /* Pointer to the file object */
emh203	0:6b1e6c9e48ba	3921	)
emh203	0:6b1e6c9e48ba	3922	{
emh203	0:6b1e6c9e48ba	3923	UINT bw, btw;
emh203	0:6b1e6c9e48ba	3924	BYTE s[3];
emh203	0:6b1e6c9e48ba	3925
emh203	0:6b1e6c9e48ba	3926
emh203	0:6b1e6c9e48ba	3927	#if _USE_STRFUNC >= 2
emh203	0:6b1e6c9e48ba	3928	if (c == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */
emh203	0:6b1e6c9e48ba	3929	#endif
emh203	0:6b1e6c9e48ba	3930
emh203	0:6b1e6c9e48ba	3931	#if _LFN_UNICODE /* Write the character in UTF-8 encoding */
emh203	0:6b1e6c9e48ba	3932	if (c < 0x80) { /* 7-bit */
emh203	0:6b1e6c9e48ba	3933	s[0] = (BYTE)c;
emh203	0:6b1e6c9e48ba	3934	btw = 1;
emh203	0:6b1e6c9e48ba	3935	} else {
emh203	0:6b1e6c9e48ba	3936	if (c < 0x800) { /* 11-bit */
emh203	0:6b1e6c9e48ba	3937	s[0] = (BYTE)(0xC0 \| (c >> 6));
emh203	0:6b1e6c9e48ba	3938	s[1] = (BYTE)(0x80 \| (c & 0x3F));
emh203	0:6b1e6c9e48ba	3939	btw = 2;
emh203	0:6b1e6c9e48ba	3940	} else { /* 16-bit */
emh203	0:6b1e6c9e48ba	3941	s[0] = (BYTE)(0xE0 \| (c >> 12));
emh203	0:6b1e6c9e48ba	3942	s[1] = (BYTE)(0x80 \| ((c >> 6) & 0x3F));
emh203	0:6b1e6c9e48ba	3943	s[2] = (BYTE)(0x80 \| (c & 0x3F));
emh203	0:6b1e6c9e48ba	3944	btw = 3;
emh203	0:6b1e6c9e48ba	3945	}
emh203	0:6b1e6c9e48ba	3946	}
emh203	0:6b1e6c9e48ba	3947	#else /* Write the character without conversion */
emh203	0:6b1e6c9e48ba	3948	s[0] = (BYTE)c;
emh203	0:6b1e6c9e48ba	3949	btw = 1;
emh203	0:6b1e6c9e48ba	3950	#endif
emh203	0:6b1e6c9e48ba	3951	f_write(fil, s, btw, &bw); /* Write the char to the file */
emh203	0:6b1e6c9e48ba	3952	return (bw == btw) ? 1 : EOF; /* Return the result */
emh203	0:6b1e6c9e48ba	3953	}
emh203	0:6b1e6c9e48ba	3954
emh203	0:6b1e6c9e48ba	3955
emh203	0:6b1e6c9e48ba	3956
emh203	0:6b1e6c9e48ba	3957
emh203	0:6b1e6c9e48ba	3958	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3959	/* Put a string to the file */
emh203	0:6b1e6c9e48ba	3960	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3961	int f_puts (
emh203	0:6b1e6c9e48ba	3962	const TCHAR* str, /* Pointer to the string to be output */
emh203	0:6b1e6c9e48ba	3963	FIL* fil /* Pointer to the file object */
emh203	0:6b1e6c9e48ba	3964	)
emh203	0:6b1e6c9e48ba	3965	{
emh203	0:6b1e6c9e48ba	3966	int n;
emh203	0:6b1e6c9e48ba	3967
emh203	0:6b1e6c9e48ba	3968
emh203	0:6b1e6c9e48ba	3969	for (n = 0; *str; str++, n++) {
emh203	0:6b1e6c9e48ba	3970	if (f_putc(*str, fil) == EOF) return EOF;
emh203	0:6b1e6c9e48ba	3971	}
emh203	0:6b1e6c9e48ba	3972	return n;
emh203	0:6b1e6c9e48ba	3973	}
emh203	0:6b1e6c9e48ba	3974
emh203	0:6b1e6c9e48ba	3975
emh203	0:6b1e6c9e48ba	3976
emh203	0:6b1e6c9e48ba	3977
emh203	0:6b1e6c9e48ba	3978	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3979	/* Put a formatted string to the file */
emh203	0:6b1e6c9e48ba	3980	/-----------------------------------------------------------------------/
emh203	0:6b1e6c9e48ba	3981	int f_printf (
emh203	0:6b1e6c9e48ba	3982	FIL* fil, /* Pointer to the file object */
emh203	0:6b1e6c9e48ba	3983	const TCHAR* str, /* Pointer to the format string */
emh203	0:6b1e6c9e48ba	3984	... /* Optional arguments... */
emh203	0:6b1e6c9e48ba	3985	)
emh203	0:6b1e6c9e48ba	3986	{
emh203	0:6b1e6c9e48ba	3987	va_list arp;
emh203	0:6b1e6c9e48ba	3988	BYTE f, r;
emh203	0:6b1e6c9e48ba	3989	UINT i, j, w;
emh203	0:6b1e6c9e48ba	3990	ULONG v;
emh203	0:6b1e6c9e48ba	3991	TCHAR c, d, s[16], *p;
emh203	0:6b1e6c9e48ba	3992	int res, chc, cc;
emh203	0:6b1e6c9e48ba	3993
emh203	0:6b1e6c9e48ba	3994
emh203	0:6b1e6c9e48ba	3995	va_start(arp, str);
emh203	0:6b1e6c9e48ba	3996
emh203	0:6b1e6c9e48ba	3997	for (cc = res = 0; cc != EOF; res += cc) {
emh203	0:6b1e6c9e48ba	3998	c = *str++;
emh203	0:6b1e6c9e48ba	3999	if (c == 0) break; /* End of string */
emh203	0:6b1e6c9e48ba	4000	if (c != '%') { /* Non escape character */
emh203	0:6b1e6c9e48ba	4001	cc = f_putc(c, fil);
emh203	0:6b1e6c9e48ba	4002	if (cc != EOF) cc = 1;
emh203	0:6b1e6c9e48ba	4003	continue;
emh203	0:6b1e6c9e48ba	4004	}
emh203	0:6b1e6c9e48ba	4005	w = f = 0;
emh203	0:6b1e6c9e48ba	4006	c = *str++;
emh203	0:6b1e6c9e48ba	4007	if (c == '0') { /* Flag: '0' padding */
emh203	0:6b1e6c9e48ba	4008	f = 1; c = *str++;
emh203	0:6b1e6c9e48ba	4009	} else {
emh203	0:6b1e6c9e48ba	4010	if (c == '-') { /* Flag: left justified */
emh203	0:6b1e6c9e48ba	4011	f = 2; c = *str++;
emh203	0:6b1e6c9e48ba	4012	}
emh203	0:6b1e6c9e48ba	4013	}
emh203	0:6b1e6c9e48ba	4014	while (IsDigit(c)) { /* Precision */
emh203	0:6b1e6c9e48ba	4015	w = w * 10 + c - '0';
emh203	0:6b1e6c9e48ba	4016	c = *str++;
emh203	0:6b1e6c9e48ba	4017	}
emh203	0:6b1e6c9e48ba	4018	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
emh203	0:6b1e6c9e48ba	4019	f \|= 4; c = *str++;
emh203	0:6b1e6c9e48ba	4020	}
emh203	0:6b1e6c9e48ba	4021	if (!c) break;
emh203	0:6b1e6c9e48ba	4022	d = c;
emh203	0:6b1e6c9e48ba	4023	if (IsLower(d)) d -= 0x20;
emh203	0:6b1e6c9e48ba	4024	switch (d) { /* Type is... */
emh203	0:6b1e6c9e48ba	4025	case 'S' : /* String */
emh203	0:6b1e6c9e48ba	4026	p = va_arg(arp, TCHAR*);
emh203	0:6b1e6c9e48ba	4027	for (j = 0; p[j]; j++) ;
emh203	0:6b1e6c9e48ba	4028	chc = 0;
emh203	0:6b1e6c9e48ba	4029	if (!(f & 2)) {
emh203	0:6b1e6c9e48ba	4030	while (j++ < w) chc += (cc = f_putc(' ', fil));
emh203	0:6b1e6c9e48ba	4031	}
emh203	0:6b1e6c9e48ba	4032	chc += (cc = f_puts(p, fil));
emh203	0:6b1e6c9e48ba	4033	while (j++ < w) chc += (cc = f_putc(' ', fil));
emh203	0:6b1e6c9e48ba	4034	if (cc != EOF) cc = chc;
emh203	0:6b1e6c9e48ba	4035	continue;
emh203	0:6b1e6c9e48ba	4036	case 'C' : /* Character */
emh203	0:6b1e6c9e48ba	4037	cc = f_putc((TCHAR)va_arg(arp, int), fil); continue;
emh203	0:6b1e6c9e48ba	4038	case 'B' : /* Binary */
emh203	0:6b1e6c9e48ba	4039	r = 2; break;
emh203	0:6b1e6c9e48ba	4040	case 'O' : /* Octal */
emh203	0:6b1e6c9e48ba	4041	r = 8; break;
emh203	0:6b1e6c9e48ba	4042	case 'D' : /* Signed decimal */
emh203	0:6b1e6c9e48ba	4043	case 'U' : /* Unsigned decimal */
emh203	0:6b1e6c9e48ba	4044	r = 10; break;
emh203	0:6b1e6c9e48ba	4045	case 'X' : /* Hexdecimal */
emh203	0:6b1e6c9e48ba	4046	r = 16; break;
emh203	0:6b1e6c9e48ba	4047	default: /* Unknown type (passthrough) */
emh203	0:6b1e6c9e48ba	4048	cc = f_putc(c, fil); continue;
emh203	0:6b1e6c9e48ba	4049	}
emh203	0:6b1e6c9e48ba	4050
emh203	0:6b1e6c9e48ba	4051	/* Get an argument and put it in numeral */
emh203	0:6b1e6c9e48ba	4052	v = (f & 4) ? (ULONG)va_arg(arp, long) : ((d == 'D') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int));
emh203	0:6b1e6c9e48ba	4053	if (d == 'D' && (v & 0x80000000)) {
emh203	0:6b1e6c9e48ba	4054	v = 0 - v;
emh203	0:6b1e6c9e48ba	4055	f \|= 8;
emh203	0:6b1e6c9e48ba	4056	}
emh203	0:6b1e6c9e48ba	4057	i = 0;
emh203	0:6b1e6c9e48ba	4058	do {
emh203	0:6b1e6c9e48ba	4059	d = (TCHAR)(v % r); v /= r;
emh203	0:6b1e6c9e48ba	4060	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
emh203	0:6b1e6c9e48ba	4061	s[i++] = d + '0';
emh203	0:6b1e6c9e48ba	4062	} while (v && i < sizeof(s) / sizeof(s[0]));
emh203	0:6b1e6c9e48ba	4063	if (f & 8) s[i++] = '-';
emh203	0:6b1e6c9e48ba	4064	j = i; d = (f & 1) ? '0' : ' ';
emh203	0:6b1e6c9e48ba	4065	res = 0;
emh203	0:6b1e6c9e48ba	4066	while (!(f & 2) && j++ < w) res += (cc = f_putc(d, fil));
emh203	0:6b1e6c9e48ba	4067	do res += (cc = f_putc(s[--i], fil)); while(i);
emh203	0:6b1e6c9e48ba	4068	while (j++ < w) res += (cc = f_putc(' ', fil));
emh203	0:6b1e6c9e48ba	4069	if (cc != EOF) cc = res;
emh203	0:6b1e6c9e48ba	4070	}
emh203	0:6b1e6c9e48ba	4071
emh203	0:6b1e6c9e48ba	4072	va_end(arp);
emh203	0:6b1e6c9e48ba	4073	return (cc == EOF) ? cc : res;
emh203	0:6b1e6c9e48ba	4074	}
emh203	0:6b1e6c9e48ba	4075
emh203	0:6b1e6c9e48ba	4076	#endif /* !_FS_READONLY */
emh203	0:6b1e6c9e48ba	4077	#endif /* _USE_STRFUNC */
emh203	0:6b1e6c9e48ba	4078
emh203	0:6b1e6c9e48ba	4079

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	27 Dec 2011
Imports:	3
Forks:	0
Commits:	2
Dependents:	0
Dependencies:	2
Followers:	1

FAT_FS/ff.c@1:dc171f34db9b, 2011-12-30 (annotated)

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