FatFileSystem - -

Users » p07gbar » Code » FatFileSystem

Dependents: RSALB_hbridge_helloworld RSALB_lobster WavPlayer_test AudioCODEC_HelloWorld ... more

Fork of FatFileSystemCpp by Igor Skochinsky

ff.cpp@2:e869ee8f3c3d, 2012-09-19 (annotated)

Committer:: p07gbar
Date:: Wed Sep 19 11:03:35 2012 +0000
Revision:: 2:e869ee8f3c3d
Parent:: 1:88f22c32a456

Who changed what in which revision?

User	Revision	Line number	New contents of line
p07gbar	2:e869ee8f3c3d	1	/*----------------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2	/ FatFs - FAT file system module R0.09 (C)ChaN, 2011
p07gbar	2:e869ee8f3c3d	3	/-----------------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	4	/ FatFs module is a generic FAT file system module for small embedded systems.
p07gbar	2:e869ee8f3c3d	5	/ This is a free software that opened for education, research and commercial
p07gbar	2:e869ee8f3c3d	6	/ developments under license policy of following terms.
p07gbar	2:e869ee8f3c3d	7	/
p07gbar	2:e869ee8f3c3d	8	/ Copyright (C) 2011, ChaN, all right reserved.
p07gbar	2:e869ee8f3c3d	9	/
p07gbar	2:e869ee8f3c3d	10	/ * The FatFs module is a free software and there is NO WARRANTY.
p07gbar	2:e869ee8f3c3d	11	/ * No restriction on use. You can use, modify and redistribute it for
p07gbar	2:e869ee8f3c3d	12	/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
p07gbar	2:e869ee8f3c3d	13	/ * Redistributions of source code must retain the above copyright notice.
p07gbar	2:e869ee8f3c3d	14	/
p07gbar	2:e869ee8f3c3d	15	/-----------------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	16	/ Feb 26,'06 R0.00 Prototype.
p07gbar	2:e869ee8f3c3d	17	/
p07gbar	2:e869ee8f3c3d	18	/ Apr 29,'06 R0.01 First stable version.
p07gbar	2:e869ee8f3c3d	19	/
p07gbar	2:e869ee8f3c3d	20	/ Jun 01,'06 R0.02 Added FAT12 support.
p07gbar	2:e869ee8f3c3d	21	/ Removed unbuffered mode.
p07gbar	2:e869ee8f3c3d	22	/ Fixed a problem on small (<32M) partition.
p07gbar	2:e869ee8f3c3d	23	/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
p07gbar	2:e869ee8f3c3d	24	/
p07gbar	2:e869ee8f3c3d	25	/ Sep 22,'06 R0.03 Added f_rename().
p07gbar	2:e869ee8f3c3d	26	/ Changed option _FS_MINIMUM to _FS_MINIMIZE.
p07gbar	2:e869ee8f3c3d	27	/ Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
p07gbar	2:e869ee8f3c3d	28	/ Fixed f_mkdir() creates incorrect directory on FAT32.
p07gbar	2:e869ee8f3c3d	29	/
p07gbar	2:e869ee8f3c3d	30	/ Feb 04,'07 R0.04 Supported multiple drive system.
p07gbar	2:e869ee8f3c3d	31	/ Changed some interfaces for multiple drive system.
p07gbar	2:e869ee8f3c3d	32	/ Changed f_mountdrv() to f_mount().
p07gbar	2:e869ee8f3c3d	33	/ Added f_mkfs().
p07gbar	2:e869ee8f3c3d	34	/ Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
p07gbar	2:e869ee8f3c3d	35	/ Added a capability of extending file size to f_lseek().
p07gbar	2:e869ee8f3c3d	36	/ Added minimization level 3.
p07gbar	2:e869ee8f3c3d	37	/ Fixed an endian sensitive code in f_mkfs().
p07gbar	2:e869ee8f3c3d	38	/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
p07gbar	2:e869ee8f3c3d	39	/ Added FSInfo support.
p07gbar	2:e869ee8f3c3d	40	/ Fixed DBCS name can result FR_INVALID_NAME.
p07gbar	2:e869ee8f3c3d	41	/ Fixed short seek (<= csize) collapses the file object.
p07gbar	2:e869ee8f3c3d	42	/
p07gbar	2:e869ee8f3c3d	43	/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
p07gbar	2:e869ee8f3c3d	44	/ Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
p07gbar	2:e869ee8f3c3d	45	/ Fixed f_mkdir() on FAT32 creates incorrect directory.
p07gbar	2:e869ee8f3c3d	46	/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
p07gbar	2:e869ee8f3c3d	47	/ Fixed off by one error at FAT sub-type determination.
p07gbar	2:e869ee8f3c3d	48	/ Fixed btr in f_read() can be mistruncated.
p07gbar	2:e869ee8f3c3d	49	/ Fixed cached sector is not flushed when create and close without write.
p07gbar	2:e869ee8f3c3d	50	/
p07gbar	2:e869ee8f3c3d	51	/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
p07gbar	2:e869ee8f3c3d	52	/ Improved performance of f_lseek() on moving to the same or following cluster.
p07gbar	2:e869ee8f3c3d	53	/
p07gbar	2:e869ee8f3c3d	54	/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
p07gbar	2:e869ee8f3c3d	55	/ Added long file name feature.
p07gbar	2:e869ee8f3c3d	56	/ Added multiple code page feature.
p07gbar	2:e869ee8f3c3d	57	/ Added re-entrancy for multitask operation.
p07gbar	2:e869ee8f3c3d	58	/ Added auto cluster size selection to f_mkfs().
p07gbar	2:e869ee8f3c3d	59	/ Added rewind option to f_readdir().
p07gbar	2:e869ee8f3c3d	60	/ Changed result code of critical errors.
p07gbar	2:e869ee8f3c3d	61	/ Renamed string functions to avoid name collision.
p07gbar	2:e869ee8f3c3d	62	/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
p07gbar	2:e869ee8f3c3d	63	/ Added multiple sector size feature.
p07gbar	2:e869ee8f3c3d	64	/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
p07gbar	2:e869ee8f3c3d	65	/ Fixed wrong cache control in f_lseek().
p07gbar	2:e869ee8f3c3d	66	/ Added relative path feature.
p07gbar	2:e869ee8f3c3d	67	/ Added f_chdir() and f_chdrive().
p07gbar	2:e869ee8f3c3d	68	/ Added proper case conversion to extended char.
p07gbar	2:e869ee8f3c3d	69	/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
p07gbar	2:e869ee8f3c3d	70	/ Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
p07gbar	2:e869ee8f3c3d	71	/ Fixed name matching error on the 13 char boundary.
p07gbar	2:e869ee8f3c3d	72	/ Added a configuration option, _LFN_UNICODE.
p07gbar	2:e869ee8f3c3d	73	/ Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
p07gbar	2:e869ee8f3c3d	74	/
p07gbar	2:e869ee8f3c3d	75	/ May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
p07gbar	2:e869ee8f3c3d	76	/ Added file lock feature. (_FS_SHARE)
p07gbar	2:e869ee8f3c3d	77	/ Added fast seek feature. (_USE_FASTSEEK)
p07gbar	2:e869ee8f3c3d	78	/ Changed some types on the API, XCHAR->TCHAR.
p07gbar	2:e869ee8f3c3d	79	/ Changed fname member in the FILINFO structure on Unicode cfg.
p07gbar	2:e869ee8f3c3d	80	/ String functions support UTF-8 encoding files on Unicode cfg.
p07gbar	2:e869ee8f3c3d	81	/ Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
p07gbar	2:e869ee8f3c3d	82	/ Added sector erase feature. (_USE_ERASE)
p07gbar	2:e869ee8f3c3d	83	/ Moved file lock semaphore table from fs object to the bss.
p07gbar	2:e869ee8f3c3d	84	/ Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
p07gbar	2:e869ee8f3c3d	85	/ Fixed f_mkfs() creates wrong FAT32 volume.
p07gbar	2:e869ee8f3c3d	86	/ Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
p07gbar	2:e869ee8f3c3d	87	/ f_lseek() reports required table size on creating CLMP.
p07gbar	2:e869ee8f3c3d	88	/ Extended format syntax of f_printf function.
p07gbar	2:e869ee8f3c3d	89	/ Ignores duplicated directory separators in given path names.
p07gbar	2:e869ee8f3c3d	90	/
p07gbar	2:e869ee8f3c3d	91	/ Sep 06,'11 R0.09 f_mkfs() supports multiple partition to finish the multiple partition feature.
p07gbar	2:e869ee8f3c3d	92	/ Added f_fdisk(). (_MULTI_PARTITION = 2)
p07gbar	2:e869ee8f3c3d	93	/---------------------------------------------------------------------------*/
p07gbar	2:e869ee8f3c3d	94
p07gbar	2:e869ee8f3c3d	95	#include "ff.h" /* FatFs configurations and declarations */
p07gbar	2:e869ee8f3c3d	96	#include "diskio.h" /* Declarations of low level disk I/O functions */
p07gbar	2:e869ee8f3c3d	97
p07gbar	2:e869ee8f3c3d	98
p07gbar	2:e869ee8f3c3d	99	/*--------------------------------------------------------------------------
p07gbar	2:e869ee8f3c3d	100
p07gbar	2:e869ee8f3c3d	101	Module Private Definitions
p07gbar	2:e869ee8f3c3d	102
p07gbar	2:e869ee8f3c3d	103	---------------------------------------------------------------------------*/
p07gbar	2:e869ee8f3c3d	104
p07gbar	2:e869ee8f3c3d	105	#if _FATFS != 6502 /* Revision ID */
p07gbar	2:e869ee8f3c3d	106	#error Wrong include file (ff.h).
p07gbar	2:e869ee8f3c3d	107	#endif
p07gbar	2:e869ee8f3c3d	108
p07gbar	2:e869ee8f3c3d	109
p07gbar	2:e869ee8f3c3d	110	/* Definitions on sector size */
p07gbar	2:e869ee8f3c3d	111	#if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
p07gbar	2:e869ee8f3c3d	112	#error Wrong sector size.
p07gbar	2:e869ee8f3c3d	113	#endif
p07gbar	2:e869ee8f3c3d	114	#if _MAX_SS != 512
p07gbar	2:e869ee8f3c3d	115	#define SS(fs) ((fs)->ssize) /* Variable sector size */
p07gbar	2:e869ee8f3c3d	116	#else
p07gbar	2:e869ee8f3c3d	117	#define SS(fs) 512U /* Fixed sector size */
p07gbar	2:e869ee8f3c3d	118	#endif
p07gbar	2:e869ee8f3c3d	119
p07gbar	2:e869ee8f3c3d	120
p07gbar	2:e869ee8f3c3d	121	/* Reentrancy related */
p07gbar	2:e869ee8f3c3d	122	#if _FS_REENTRANT
p07gbar	2:e869ee8f3c3d	123	#if _USE_LFN == 1
p07gbar	2:e869ee8f3c3d	124	#error Static LFN work area must not be used in re-entrant configuration.
p07gbar	2:e869ee8f3c3d	125	#endif
p07gbar	2:e869ee8f3c3d	126	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
p07gbar	2:e869ee8f3c3d	127	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
p07gbar	2:e869ee8f3c3d	128	#else
p07gbar	2:e869ee8f3c3d	129	#define ENTER_FF(fs)
p07gbar	2:e869ee8f3c3d	130	#define LEAVE_FF(fs, res) return res
p07gbar	2:e869ee8f3c3d	131	#endif
p07gbar	2:e869ee8f3c3d	132
p07gbar	2:e869ee8f3c3d	133	#define ABORT(fs, res) { fp->flag \|= FA__ERROR; LEAVE_FF(fs, res); }
p07gbar	2:e869ee8f3c3d	134
p07gbar	2:e869ee8f3c3d	135
p07gbar	2:e869ee8f3c3d	136	/* File shareing feature */
p07gbar	2:e869ee8f3c3d	137	#if _FS_SHARE
p07gbar	2:e869ee8f3c3d	138	#if _FS_READONLY
p07gbar	2:e869ee8f3c3d	139	#error _FS_SHARE must be 0 on read-only cfg.
p07gbar	2:e869ee8f3c3d	140	#endif
p07gbar	2:e869ee8f3c3d	141	typedef struct {
p07gbar	2:e869ee8f3c3d	142	FATFS fs; / File ID 1, volume (NULL:blank entry) */
p07gbar	2:e869ee8f3c3d	143	DWORD clu; /* File ID 2, directory */
p07gbar	2:e869ee8f3c3d	144	WORD idx; /* File ID 3, directory index */
p07gbar	2:e869ee8f3c3d	145	WORD ctr; /* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:write mode */
p07gbar	2:e869ee8f3c3d	146	} FILESEM;
p07gbar	2:e869ee8f3c3d	147	#endif
p07gbar	2:e869ee8f3c3d	148
p07gbar	2:e869ee8f3c3d	149
p07gbar	2:e869ee8f3c3d	150	/* Misc definitions */
p07gbar	2:e869ee8f3c3d	151	#define LD_CLUST(dir) (((DWORD)LD_WORD(dir+DIR_FstClusHI)<<16) \| LD_WORD(dir+DIR_FstClusLO))
p07gbar	2:e869ee8f3c3d	152	#define ST_CLUST(dir,cl) {ST_WORD(dir+DIR_FstClusLO, cl); ST_WORD(dir+DIR_FstClusHI, (DWORD)cl>>16);}
p07gbar	2:e869ee8f3c3d	153
p07gbar	2:e869ee8f3c3d	154
p07gbar	2:e869ee8f3c3d	155	/* DBCS code ranges and SBCS extend char conversion table */
p07gbar	2:e869ee8f3c3d	156
p07gbar	2:e869ee8f3c3d	157	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
p07gbar	2:e869ee8f3c3d	158	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
p07gbar	2:e869ee8f3c3d	159	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
p07gbar	2:e869ee8f3c3d	160	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
p07gbar	2:e869ee8f3c3d	161	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
p07gbar	2:e869ee8f3c3d	162	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
p07gbar	2:e869ee8f3c3d	163	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
p07gbar	2:e869ee8f3c3d	164	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
p07gbar	2:e869ee8f3c3d	165	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
p07gbar	2:e869ee8f3c3d	166
p07gbar	2:e869ee8f3c3d	167	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
p07gbar	2:e869ee8f3c3d	168	#define _DF1S 0x81
p07gbar	2:e869ee8f3c3d	169	#define _DF1E 0xFE
p07gbar	2:e869ee8f3c3d	170	#define _DS1S 0x40
p07gbar	2:e869ee8f3c3d	171	#define _DS1E 0x7E
p07gbar	2:e869ee8f3c3d	172	#define _DS2S 0x80
p07gbar	2:e869ee8f3c3d	173	#define _DS2E 0xFE
p07gbar	2:e869ee8f3c3d	174
p07gbar	2:e869ee8f3c3d	175	#elif _CODE_PAGE == 949 /* Korean */
p07gbar	2:e869ee8f3c3d	176	#define _DF1S 0x81
p07gbar	2:e869ee8f3c3d	177	#define _DF1E 0xFE
p07gbar	2:e869ee8f3c3d	178	#define _DS1S 0x41
p07gbar	2:e869ee8f3c3d	179	#define _DS1E 0x5A
p07gbar	2:e869ee8f3c3d	180	#define _DS2S 0x61
p07gbar	2:e869ee8f3c3d	181	#define _DS2E 0x7A
p07gbar	2:e869ee8f3c3d	182	#define _DS3S 0x81
p07gbar	2:e869ee8f3c3d	183	#define _DS3E 0xFE
p07gbar	2:e869ee8f3c3d	184
p07gbar	2:e869ee8f3c3d	185	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
p07gbar	2:e869ee8f3c3d	186	#define _DF1S 0x81
p07gbar	2:e869ee8f3c3d	187	#define _DF1E 0xFE
p07gbar	2:e869ee8f3c3d	188	#define _DS1S 0x40
p07gbar	2:e869ee8f3c3d	189	#define _DS1E 0x7E
p07gbar	2:e869ee8f3c3d	190	#define _DS2S 0xA1
p07gbar	2:e869ee8f3c3d	191	#define _DS2E 0xFE
p07gbar	2:e869ee8f3c3d	192
p07gbar	2:e869ee8f3c3d	193	#elif _CODE_PAGE == 437 /* U.S. (OEM) */
p07gbar	2:e869ee8f3c3d	194	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	199
p07gbar	2:e869ee8f3c3d	200	#elif _CODE_PAGE == 720 /* Arabic (OEM) */
p07gbar	2:e869ee8f3c3d	201	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	206
p07gbar	2:e869ee8f3c3d	207	#elif _CODE_PAGE == 737 /* Greek (OEM) */
p07gbar	2:e869ee8f3c3d	208	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	213
p07gbar	2:e869ee8f3c3d	214	#elif _CODE_PAGE == 775 /* Baltic (OEM) */
p07gbar	2:e869ee8f3c3d	215	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	220
p07gbar	2:e869ee8f3c3d	221	#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
p07gbar	2:e869ee8f3c3d	222	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	227
p07gbar	2:e869ee8f3c3d	228	#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
p07gbar	2:e869ee8f3c3d	229	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	234
p07gbar	2:e869ee8f3c3d	235	#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
p07gbar	2:e869ee8f3c3d	236	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	241
p07gbar	2:e869ee8f3c3d	242	#elif _CODE_PAGE == 857 /* Turkish (OEM) */
p07gbar	2:e869ee8f3c3d	243	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	248
p07gbar	2:e869ee8f3c3d	249	#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
p07gbar	2:e869ee8f3c3d	250	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	255
p07gbar	2:e869ee8f3c3d	256	#elif _CODE_PAGE == 862 /* Hebrew (OEM) */
p07gbar	2:e869ee8f3c3d	257	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	262
p07gbar	2:e869ee8f3c3d	263	#elif _CODE_PAGE == 866 /* Russian (OEM) */
p07gbar	2:e869ee8f3c3d	264	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	269
p07gbar	2:e869ee8f3c3d	270	#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
p07gbar	2:e869ee8f3c3d	271	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	276
p07gbar	2:e869ee8f3c3d	277	#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
p07gbar	2:e869ee8f3c3d	278	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	283
p07gbar	2:e869ee8f3c3d	284	#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
p07gbar	2:e869ee8f3c3d	285	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	290
p07gbar	2:e869ee8f3c3d	291	#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
p07gbar	2:e869ee8f3c3d	292	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	297
p07gbar	2:e869ee8f3c3d	298	#elif _CODE_PAGE == 1253 /* Greek (Windows) */
p07gbar	2:e869ee8f3c3d	299	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	304
p07gbar	2:e869ee8f3c3d	305	#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
p07gbar	2:e869ee8f3c3d	306	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	311
p07gbar	2:e869ee8f3c3d	312	#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
p07gbar	2:e869ee8f3c3d	313	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	318
p07gbar	2:e869ee8f3c3d	319	#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
p07gbar	2:e869ee8f3c3d	320	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	325
p07gbar	2:e869ee8f3c3d	326	#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
p07gbar	2:e869ee8f3c3d	327	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	332
p07gbar	2:e869ee8f3c3d	333	#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
p07gbar	2:e869ee8f3c3d	334	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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, \
p07gbar	2:e869ee8f3c3d	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}
p07gbar	2:e869ee8f3c3d	339
p07gbar	2:e869ee8f3c3d	340	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
p07gbar	2:e869ee8f3c3d	341	#if _USE_LFN
p07gbar	2:e869ee8f3c3d	342	#error Cannot use LFN feature without valid code page.
p07gbar	2:e869ee8f3c3d	343	#endif
p07gbar	2:e869ee8f3c3d	344	#define _DF1S 0
p07gbar	2:e869ee8f3c3d	345
p07gbar	2:e869ee8f3c3d	346	#else
p07gbar	2:e869ee8f3c3d	347	#error Unknown code page
p07gbar	2:e869ee8f3c3d	348
p07gbar	2:e869ee8f3c3d	349	#endif
p07gbar	2:e869ee8f3c3d	350
p07gbar	2:e869ee8f3c3d	351
p07gbar	2:e869ee8f3c3d	352	/* Character code support macros */
p07gbar	2:e869ee8f3c3d	353	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
p07gbar	2:e869ee8f3c3d	354	#define IsLower(c) (((c)>='a')&&((c)<='z'))
p07gbar	2:e869ee8f3c3d	355	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
p07gbar	2:e869ee8f3c3d	356
p07gbar	2:e869ee8f3c3d	357	#if _DF1S /* Code page is DBCS */
p07gbar	2:e869ee8f3c3d	358
p07gbar	2:e869ee8f3c3d	359	#ifdef _DF2S /* Two 1st byte areas */
p07gbar	2:e869ee8f3c3d	360	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
p07gbar	2:e869ee8f3c3d	361	#else /* One 1st byte area */
p07gbar	2:e869ee8f3c3d	362	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
p07gbar	2:e869ee8f3c3d	363	#endif
p07gbar	2:e869ee8f3c3d	364
p07gbar	2:e869ee8f3c3d	365	#ifdef _DS3S /* Three 2nd byte areas */
p07gbar	2:e869ee8f3c3d	366	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
p07gbar	2:e869ee8f3c3d	367	#else /* Two 2nd byte areas */
p07gbar	2:e869ee8f3c3d	368	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
p07gbar	2:e869ee8f3c3d	369	#endif
p07gbar	2:e869ee8f3c3d	370
p07gbar	2:e869ee8f3c3d	371	#else /* Code page is SBCS */
p07gbar	2:e869ee8f3c3d	372
p07gbar	2:e869ee8f3c3d	373	#define IsDBCS1(c) 0
p07gbar	2:e869ee8f3c3d	374	#define IsDBCS2(c) 0
p07gbar	2:e869ee8f3c3d	375
p07gbar	2:e869ee8f3c3d	376	#endif /* _DF1S */
p07gbar	2:e869ee8f3c3d	377
p07gbar	2:e869ee8f3c3d	378
p07gbar	2:e869ee8f3c3d	379	/* Name status flags */
p07gbar	2:e869ee8f3c3d	380	#define NS 11 /* Index of name status byte in fn[] */
p07gbar	2:e869ee8f3c3d	381	#define NS_LOSS 0x01 /* Out of 8.3 format */
p07gbar	2:e869ee8f3c3d	382	#define NS_LFN 0x02 /* Force to create LFN entry */
p07gbar	2:e869ee8f3c3d	383	#define NS_LAST 0x04 /* Last segment */
p07gbar	2:e869ee8f3c3d	384	#define NS_BODY 0x08 /* Lower case flag (body) */
p07gbar	2:e869ee8f3c3d	385	#define NS_EXT 0x10 /* Lower case flag (ext) */
p07gbar	2:e869ee8f3c3d	386	#define NS_DOT 0x20 /* Dot entry */
p07gbar	2:e869ee8f3c3d	387
p07gbar	2:e869ee8f3c3d	388
p07gbar	2:e869ee8f3c3d	389	/* FAT sub-type boundaries */
p07gbar	2:e869ee8f3c3d	390	/* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */
p07gbar	2:e869ee8f3c3d	391	#define MIN_FAT16 4086 /* Minimum number of clusters for FAT16 */
p07gbar	2:e869ee8f3c3d	392	#define MIN_FAT32 65526 /* Minimum number of clusters for FAT32 */
p07gbar	2:e869ee8f3c3d	393
p07gbar	2:e869ee8f3c3d	394
p07gbar	2:e869ee8f3c3d	395	/* FatFs refers the members in the FAT structures as byte array instead of
p07gbar	2:e869ee8f3c3d	396	/ structure member because the structure is not binary compatible between
p07gbar	2:e869ee8f3c3d	397	/ different platforms */
p07gbar	2:e869ee8f3c3d	398
p07gbar	2:e869ee8f3c3d	399	#define BS_jmpBoot 0 /* Jump instruction (3) */
p07gbar	2:e869ee8f3c3d	400	#define BS_OEMName 3 /* OEM name (8) */
p07gbar	2:e869ee8f3c3d	401	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
p07gbar	2:e869ee8f3c3d	402	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
p07gbar	2:e869ee8f3c3d	403	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
p07gbar	2:e869ee8f3c3d	404	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
p07gbar	2:e869ee8f3c3d	405	#define BPB_RootEntCnt 17 /* Number of root dir entries for FAT12/16 (2) */
p07gbar	2:e869ee8f3c3d	406	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
p07gbar	2:e869ee8f3c3d	407	#define BPB_Media 21 /* Media descriptor (1) */
p07gbar	2:e869ee8f3c3d	408	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
p07gbar	2:e869ee8f3c3d	409	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
p07gbar	2:e869ee8f3c3d	410	#define BPB_NumHeads 26 /* Number of heads (2) */
p07gbar	2:e869ee8f3c3d	411	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
p07gbar	2:e869ee8f3c3d	412	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
p07gbar	2:e869ee8f3c3d	413	#define BS_DrvNum 36 /* Physical drive number (2) */
p07gbar	2:e869ee8f3c3d	414	#define BS_BootSig 38 /* Extended boot signature (1) */
p07gbar	2:e869ee8f3c3d	415	#define BS_VolID 39 /* Volume serial number (4) */
p07gbar	2:e869ee8f3c3d	416	#define BS_VolLab 43 /* Volume label (8) */
p07gbar	2:e869ee8f3c3d	417	#define BS_FilSysType 54 /* File system type (1) */
p07gbar	2:e869ee8f3c3d	418	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
p07gbar	2:e869ee8f3c3d	419	#define BPB_ExtFlags 40 /* Extended flags (2) */
p07gbar	2:e869ee8f3c3d	420	#define BPB_FSVer 42 /* File system version (2) */
p07gbar	2:e869ee8f3c3d	421	#define BPB_RootClus 44 /* Root dir first cluster (4) */
p07gbar	2:e869ee8f3c3d	422	#define BPB_FSInfo 48 /* Offset of FSInfo sector (2) */
p07gbar	2:e869ee8f3c3d	423	#define BPB_BkBootSec 50 /* Offset of backup boot sectot (2) */
p07gbar	2:e869ee8f3c3d	424	#define BS_DrvNum32 64 /* Physical drive number (2) */
p07gbar	2:e869ee8f3c3d	425	#define BS_BootSig32 66 /* Extended boot signature (1) */
p07gbar	2:e869ee8f3c3d	426	#define BS_VolID32 67 /* Volume serial number (4) */
p07gbar	2:e869ee8f3c3d	427	#define BS_VolLab32 71 /* Volume label (8) */
p07gbar	2:e869ee8f3c3d	428	#define BS_FilSysType32 82 /* File system type (1) */
p07gbar	2:e869ee8f3c3d	429	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
p07gbar	2:e869ee8f3c3d	430	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
p07gbar	2:e869ee8f3c3d	431	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
p07gbar	2:e869ee8f3c3d	432	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
p07gbar	2:e869ee8f3c3d	433	#define MBR_Table 446 /* MBR: Partition table offset (2) */
p07gbar	2:e869ee8f3c3d	434	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
p07gbar	2:e869ee8f3c3d	435	#define BS_55AA 510 /* Boot sector signature (2) */
p07gbar	2:e869ee8f3c3d	436
p07gbar	2:e869ee8f3c3d	437	#define DIR_Name 0 /* Short file name (11) */
p07gbar	2:e869ee8f3c3d	438	#define DIR_Attr 11 /* Attribute (1) */
p07gbar	2:e869ee8f3c3d	439	#define DIR_NTres 12 /* NT flag (1) */
p07gbar	2:e869ee8f3c3d	440	#define DIR_CrtTime 14 /* Created time (2) */
p07gbar	2:e869ee8f3c3d	441	#define DIR_CrtDate 16 /* Created date (2) */
p07gbar	2:e869ee8f3c3d	442	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
p07gbar	2:e869ee8f3c3d	443	#define DIR_WrtTime 22 /* Modified time (2) */
p07gbar	2:e869ee8f3c3d	444	#define DIR_WrtDate 24 /* Modified date (2) */
p07gbar	2:e869ee8f3c3d	445	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
p07gbar	2:e869ee8f3c3d	446	#define DIR_FileSize 28 /* File size (4) */
p07gbar	2:e869ee8f3c3d	447	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
p07gbar	2:e869ee8f3c3d	448	#define LDIR_Attr 11 /* LFN attribute (1) */
p07gbar	2:e869ee8f3c3d	449	#define LDIR_Type 12 /* LFN type (1) */
p07gbar	2:e869ee8f3c3d	450	#define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
p07gbar	2:e869ee8f3c3d	451	#define LDIR_FstClusLO 26 /* Filled by zero (0) */
p07gbar	2:e869ee8f3c3d	452	#define SZ_DIR 32 /* Size of a directory entry */
p07gbar	2:e869ee8f3c3d	453	#define LLE 0x40 /* Last long entry flag in LDIR_Ord */
p07gbar	2:e869ee8f3c3d	454	#define DDE 0xE5 /* Deleted directory enrty mark in DIR_Name[0] */
p07gbar	2:e869ee8f3c3d	455	#define NDDE 0x05 /* Replacement of a character collides with DDE */
p07gbar	2:e869ee8f3c3d	456
p07gbar	2:e869ee8f3c3d	457
p07gbar	2:e869ee8f3c3d	458	/------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	459	/* Module private work area */
p07gbar	2:e869ee8f3c3d	460	/------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	461	/* Note that uninitialized variables with static duration are
p07gbar	2:e869ee8f3c3d	462	/ zeroed/nulled at start-up. If not, the compiler or start-up
p07gbar	2:e869ee8f3c3d	463	/ routine is out of ANSI-C standard.
p07gbar	2:e869ee8f3c3d	464	*/
p07gbar	2:e869ee8f3c3d	465
p07gbar	2:e869ee8f3c3d	466	#if _VOLUMES
p07gbar	2:e869ee8f3c3d	467	static
p07gbar	2:e869ee8f3c3d	468	FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
p07gbar	2:e869ee8f3c3d	469	#else
p07gbar	2:e869ee8f3c3d	470	#error Number of volumes must not be 0.
p07gbar	2:e869ee8f3c3d	471	#endif
p07gbar	2:e869ee8f3c3d	472
p07gbar	2:e869ee8f3c3d	473	static
p07gbar	2:e869ee8f3c3d	474	WORD Fsid; /* File system mount ID */
p07gbar	2:e869ee8f3c3d	475
p07gbar	2:e869ee8f3c3d	476	#if _FS_RPATH
p07gbar	2:e869ee8f3c3d	477	static
p07gbar	2:e869ee8f3c3d	478	BYTE CurrVol; /* Current drive */
p07gbar	2:e869ee8f3c3d	479	#endif
p07gbar	2:e869ee8f3c3d	480
p07gbar	2:e869ee8f3c3d	481	#if _FS_SHARE
p07gbar	2:e869ee8f3c3d	482	static
p07gbar	2:e869ee8f3c3d	483	FILESEM Files[_FS_SHARE]; /* File lock semaphores */
p07gbar	2:e869ee8f3c3d	484	#endif
p07gbar	2:e869ee8f3c3d	485
p07gbar	2:e869ee8f3c3d	486	#if _USE_LFN == 0 /* No LFN feature */
p07gbar	2:e869ee8f3c3d	487	#define DEF_NAMEBUF BYTE sfn[12]
p07gbar	2:e869ee8f3c3d	488	#define INIT_BUF(dobj) (dobj).fn = sfn
p07gbar	2:e869ee8f3c3d	489	#define FREE_BUF()
p07gbar	2:e869ee8f3c3d	490
p07gbar	2:e869ee8f3c3d	491	#elif _USE_LFN == 1 /* LFN feature with static working buffer */
p07gbar	2:e869ee8f3c3d	492	static WCHAR LfnBuf[_MAX_LFN+1];
p07gbar	2:e869ee8f3c3d	493	#define DEF_NAMEBUF BYTE sfn[12]
p07gbar	2:e869ee8f3c3d	494	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
p07gbar	2:e869ee8f3c3d	495	#define FREE_BUF()
p07gbar	2:e869ee8f3c3d	496
p07gbar	2:e869ee8f3c3d	497	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
p07gbar	2:e869ee8f3c3d	498	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
p07gbar	2:e869ee8f3c3d	499	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
p07gbar	2:e869ee8f3c3d	500	#define FREE_BUF()
p07gbar	2:e869ee8f3c3d	501
p07gbar	2:e869ee8f3c3d	502	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
p07gbar	2:e869ee8f3c3d	503	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
p07gbar	2:e869ee8f3c3d	504	#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
p07gbar	2:e869ee8f3c3d	505	if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
p07gbar	2:e869ee8f3c3d	506	(dobj).lfn = lfn; (dobj).fn = sfn; }
p07gbar	2:e869ee8f3c3d	507	#define FREE_BUF() ff_memfree(lfn)
p07gbar	2:e869ee8f3c3d	508
p07gbar	2:e869ee8f3c3d	509	#else
p07gbar	2:e869ee8f3c3d	510	#error Wrong LFN configuration.
p07gbar	2:e869ee8f3c3d	511	#endif
p07gbar	2:e869ee8f3c3d	512
p07gbar	2:e869ee8f3c3d	513
p07gbar	2:e869ee8f3c3d	514
p07gbar	2:e869ee8f3c3d	515
p07gbar	2:e869ee8f3c3d	516	/*--------------------------------------------------------------------------
p07gbar	2:e869ee8f3c3d	517
p07gbar	2:e869ee8f3c3d	518	Module Private Functions
p07gbar	2:e869ee8f3c3d	519
p07gbar	2:e869ee8f3c3d	520	---------------------------------------------------------------------------*/
p07gbar	2:e869ee8f3c3d	521
p07gbar	2:e869ee8f3c3d	522
p07gbar	2:e869ee8f3c3d	523	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	524	/* String functions */
p07gbar	2:e869ee8f3c3d	525	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	526
p07gbar	2:e869ee8f3c3d	527	/* Copy memory to memory */
p07gbar	2:e869ee8f3c3d	528	static
p07gbar	2:e869ee8f3c3d	529	void mem_cpy (void* dst, const void* src, UINT cnt) {
p07gbar	2:e869ee8f3c3d	530	BYTE d = (BYTE)dst;
p07gbar	2:e869ee8f3c3d	531	const BYTE s = (const BYTE)src;
p07gbar	2:e869ee8f3c3d	532
p07gbar	2:e869ee8f3c3d	533	#if _WORD_ACCESS == 1
p07gbar	2:e869ee8f3c3d	534	while (cnt >= sizeof(int)) {
p07gbar	2:e869ee8f3c3d	535	(int)d = (int)s;
p07gbar	2:e869ee8f3c3d	536	d += sizeof(int); s += sizeof(int);
p07gbar	2:e869ee8f3c3d	537	cnt -= sizeof(int);
p07gbar	2:e869ee8f3c3d	538	}
p07gbar	2:e869ee8f3c3d	539	#endif
p07gbar	2:e869ee8f3c3d	540	while (cnt--)
p07gbar	2:e869ee8f3c3d	541	d++ = s++;
p07gbar	2:e869ee8f3c3d	542	}
p07gbar	2:e869ee8f3c3d	543
p07gbar	2:e869ee8f3c3d	544	/* Fill memory */
p07gbar	2:e869ee8f3c3d	545	static
p07gbar	2:e869ee8f3c3d	546	void mem_set (void* dst, int val, UINT cnt) {
p07gbar	2:e869ee8f3c3d	547	BYTE d = (BYTE)dst;
p07gbar	2:e869ee8f3c3d	548
p07gbar	2:e869ee8f3c3d	549	while (cnt--)
p07gbar	2:e869ee8f3c3d	550	*d++ = (BYTE)val;
p07gbar	2:e869ee8f3c3d	551	}
p07gbar	2:e869ee8f3c3d	552
p07gbar	2:e869ee8f3c3d	553	/* Compare memory to memory */
p07gbar	2:e869ee8f3c3d	554	static
p07gbar	2:e869ee8f3c3d	555	int mem_cmp (const void* dst, const void* src, UINT cnt) {
p07gbar	2:e869ee8f3c3d	556	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
p07gbar	2:e869ee8f3c3d	557	int r = 0;
p07gbar	2:e869ee8f3c3d	558
p07gbar	2:e869ee8f3c3d	559	while (cnt-- && (r = d++ - s++) == 0) ;
p07gbar	2:e869ee8f3c3d	560	return r;
p07gbar	2:e869ee8f3c3d	561	}
p07gbar	2:e869ee8f3c3d	562
p07gbar	2:e869ee8f3c3d	563	/* Check if chr is contained in the string */
p07gbar	2:e869ee8f3c3d	564	static
p07gbar	2:e869ee8f3c3d	565	int chk_chr (const char* str, int chr) {
p07gbar	2:e869ee8f3c3d	566	while (str && str != chr) str++;
p07gbar	2:e869ee8f3c3d	567	return *str;
p07gbar	2:e869ee8f3c3d	568	}
p07gbar	2:e869ee8f3c3d	569
p07gbar	2:e869ee8f3c3d	570
p07gbar	2:e869ee8f3c3d	571
p07gbar	2:e869ee8f3c3d	572	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	573	/* Request/Release grant to access the volume */
p07gbar	2:e869ee8f3c3d	574	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	575	#if _FS_REENTRANT
p07gbar	2:e869ee8f3c3d	576
p07gbar	2:e869ee8f3c3d	577	static
p07gbar	2:e869ee8f3c3d	578	int lock_fs (
p07gbar	2:e869ee8f3c3d	579	FATFS fs / File system object */
p07gbar	2:e869ee8f3c3d	580	)
p07gbar	2:e869ee8f3c3d	581	{
p07gbar	2:e869ee8f3c3d	582	return ff_req_grant(fs->sobj);
p07gbar	2:e869ee8f3c3d	583	}
p07gbar	2:e869ee8f3c3d	584
p07gbar	2:e869ee8f3c3d	585
p07gbar	2:e869ee8f3c3d	586	static
p07gbar	2:e869ee8f3c3d	587	void unlock_fs (
p07gbar	2:e869ee8f3c3d	588	FATFS fs, / File system object */
p07gbar	2:e869ee8f3c3d	589	FRESULT res /* Result code to be returned */
p07gbar	2:e869ee8f3c3d	590	)
p07gbar	2:e869ee8f3c3d	591	{
p07gbar	2:e869ee8f3c3d	592	if (res != FR_NOT_ENABLED &&
p07gbar	2:e869ee8f3c3d	593	res != FR_INVALID_DRIVE &&
p07gbar	2:e869ee8f3c3d	594	res != FR_INVALID_OBJECT &&
p07gbar	2:e869ee8f3c3d	595	res != FR_TIMEOUT) {
p07gbar	2:e869ee8f3c3d	596	ff_rel_grant(fs->sobj);
p07gbar	2:e869ee8f3c3d	597	}
p07gbar	2:e869ee8f3c3d	598	}
p07gbar	2:e869ee8f3c3d	599	#endif
p07gbar	2:e869ee8f3c3d	600
p07gbar	2:e869ee8f3c3d	601
p07gbar	2:e869ee8f3c3d	602
p07gbar	2:e869ee8f3c3d	603	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	604	/* File shareing control functions */
p07gbar	2:e869ee8f3c3d	605	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	606	#if _FS_SHARE
p07gbar	2:e869ee8f3c3d	607
p07gbar	2:e869ee8f3c3d	608	static
p07gbar	2:e869ee8f3c3d	609	FRESULT chk_lock ( /* Check if the file can be accessed */
p07gbar	2:e869ee8f3c3d	610	FATFS_DIR* dj, /* Directory object pointing the file to be checked */
p07gbar	2:e869ee8f3c3d	611	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
p07gbar	2:e869ee8f3c3d	612	)
p07gbar	2:e869ee8f3c3d	613	{
p07gbar	2:e869ee8f3c3d	614	UINT i, be;
p07gbar	2:e869ee8f3c3d	615
p07gbar	2:e869ee8f3c3d	616	/* Search file semaphore table */
p07gbar	2:e869ee8f3c3d	617	for (i = be = 0; i < _FS_SHARE; i++) {
p07gbar	2:e869ee8f3c3d	618	if (Files[i].fs) { /* Existing entry */
p07gbar	2:e869ee8f3c3d	619	if (Files[i].fs == dj->fs && /* Check if the file matched with an open file */
p07gbar	2:e869ee8f3c3d	620	Files[i].clu == dj->sclust &&
p07gbar	2:e869ee8f3c3d	621	Files[i].idx == dj->index) break;
p07gbar	2:e869ee8f3c3d	622	} else { /* Blank entry */
p07gbar	2:e869ee8f3c3d	623	be++;
p07gbar	2:e869ee8f3c3d	624	}
p07gbar	2:e869ee8f3c3d	625	}
p07gbar	2:e869ee8f3c3d	626	if (i == _FS_SHARE) /* The file is not opened */
p07gbar	2:e869ee8f3c3d	627	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new file? */
p07gbar	2:e869ee8f3c3d	628
p07gbar	2:e869ee8f3c3d	629	/* The file has been opened. Reject any open against writing file and all write mode open */
p07gbar	2:e869ee8f3c3d	630	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
p07gbar	2:e869ee8f3c3d	631	}
p07gbar	2:e869ee8f3c3d	632
p07gbar	2:e869ee8f3c3d	633
p07gbar	2:e869ee8f3c3d	634	static
p07gbar	2:e869ee8f3c3d	635	int enq_lock (void) /* Check if an entry is available for a new file */
p07gbar	2:e869ee8f3c3d	636	{
p07gbar	2:e869ee8f3c3d	637	UINT i;
p07gbar	2:e869ee8f3c3d	638
p07gbar	2:e869ee8f3c3d	639	for (i = 0; i < _FS_SHARE && Files[i].fs; i++) ;
p07gbar	2:e869ee8f3c3d	640	return (i == _FS_SHARE) ? 0 : 1;
p07gbar	2:e869ee8f3c3d	641	}
p07gbar	2:e869ee8f3c3d	642
p07gbar	2:e869ee8f3c3d	643
p07gbar	2:e869ee8f3c3d	644	static
p07gbar	2:e869ee8f3c3d	645	UINT inc_lock ( /* Increment file open counter and returns its index (0:int error) */
p07gbar	2:e869ee8f3c3d	646	FATFS_DIR* dj, /* Directory object pointing the file to register or increment */
p07gbar	2:e869ee8f3c3d	647	int acc /* Desired access mode (0:Read, !0:Write) */
p07gbar	2:e869ee8f3c3d	648	)
p07gbar	2:e869ee8f3c3d	649	{
p07gbar	2:e869ee8f3c3d	650	UINT i;
p07gbar	2:e869ee8f3c3d	651
p07gbar	2:e869ee8f3c3d	652
p07gbar	2:e869ee8f3c3d	653	for (i = 0; i < _FS_SHARE; i++) { /* Find the file */
p07gbar	2:e869ee8f3c3d	654	if (Files[i].fs == dj->fs &&
p07gbar	2:e869ee8f3c3d	655	Files[i].clu == dj->sclust &&
p07gbar	2:e869ee8f3c3d	656	Files[i].idx == dj->index) break;
p07gbar	2:e869ee8f3c3d	657	}
p07gbar	2:e869ee8f3c3d	658
p07gbar	2:e869ee8f3c3d	659	if (i == _FS_SHARE) { /* Not opened. Register it as new. */
p07gbar	2:e869ee8f3c3d	660	for (i = 0; i < _FS_SHARE && Files[i].fs; i++) ;
p07gbar	2:e869ee8f3c3d	661	if (i == _FS_SHARE) return 0; /* No space to register (int err) */
p07gbar	2:e869ee8f3c3d	662	Files[i].fs = dj->fs;
p07gbar	2:e869ee8f3c3d	663	Files[i].clu = dj->sclust;
p07gbar	2:e869ee8f3c3d	664	Files[i].idx = dj->index;
p07gbar	2:e869ee8f3c3d	665	Files[i].ctr = 0;
p07gbar	2:e869ee8f3c3d	666	}
p07gbar	2:e869ee8f3c3d	667
p07gbar	2:e869ee8f3c3d	668	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
p07gbar	2:e869ee8f3c3d	669
p07gbar	2:e869ee8f3c3d	670	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
p07gbar	2:e869ee8f3c3d	671
p07gbar	2:e869ee8f3c3d	672	return i + 1;
p07gbar	2:e869ee8f3c3d	673	}
p07gbar	2:e869ee8f3c3d	674
p07gbar	2:e869ee8f3c3d	675
p07gbar	2:e869ee8f3c3d	676	static
p07gbar	2:e869ee8f3c3d	677	FRESULT dec_lock ( /* Decrement file open counter */
p07gbar	2:e869ee8f3c3d	678	UINT i /* Semaphore index */
p07gbar	2:e869ee8f3c3d	679	)
p07gbar	2:e869ee8f3c3d	680	{
p07gbar	2:e869ee8f3c3d	681	WORD n;
p07gbar	2:e869ee8f3c3d	682	FRESULT res;
p07gbar	2:e869ee8f3c3d	683
p07gbar	2:e869ee8f3c3d	684
p07gbar	2:e869ee8f3c3d	685	if (--i < _FS_SHARE) {
p07gbar	2:e869ee8f3c3d	686	n = Files[i].ctr;
p07gbar	2:e869ee8f3c3d	687	if (n == 0x100) n = 0;
p07gbar	2:e869ee8f3c3d	688	if (n) n--;
p07gbar	2:e869ee8f3c3d	689	Files[i].ctr = n;
p07gbar	2:e869ee8f3c3d	690	if (!n) Files[i].fs = 0;
p07gbar	2:e869ee8f3c3d	691	res = FR_OK;
p07gbar	2:e869ee8f3c3d	692	} else {
p07gbar	2:e869ee8f3c3d	693	res = FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	694	}
p07gbar	2:e869ee8f3c3d	695	return res;
p07gbar	2:e869ee8f3c3d	696	}
p07gbar	2:e869ee8f3c3d	697
p07gbar	2:e869ee8f3c3d	698
p07gbar	2:e869ee8f3c3d	699	static
p07gbar	2:e869ee8f3c3d	700	void clear_lock ( /* Clear lock entries of the volume */
p07gbar	2:e869ee8f3c3d	701	FATFS *fs
p07gbar	2:e869ee8f3c3d	702	)
p07gbar	2:e869ee8f3c3d	703	{
p07gbar	2:e869ee8f3c3d	704	UINT i;
p07gbar	2:e869ee8f3c3d	705
p07gbar	2:e869ee8f3c3d	706	for (i = 0; i < _FS_SHARE; i++) {
p07gbar	2:e869ee8f3c3d	707	if (Files[i].fs == fs) Files[i].fs = 0;
p07gbar	2:e869ee8f3c3d	708	}
p07gbar	2:e869ee8f3c3d	709	}
p07gbar	2:e869ee8f3c3d	710	#endif
p07gbar	2:e869ee8f3c3d	711
p07gbar	2:e869ee8f3c3d	712
p07gbar	2:e869ee8f3c3d	713
p07gbar	2:e869ee8f3c3d	714	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	715	/* Change window offset */
p07gbar	2:e869ee8f3c3d	716	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	717
p07gbar	2:e869ee8f3c3d	718	static
p07gbar	2:e869ee8f3c3d	719	FRESULT move_window (
p07gbar	2:e869ee8f3c3d	720	FATFS fs, / File system object */
p07gbar	2:e869ee8f3c3d	721	DWORD sector /* Sector number to make appearance in the fs->win[] */
p07gbar	2:e869ee8f3c3d	722	) /* Move to zero only writes back dirty window */
p07gbar	2:e869ee8f3c3d	723	{
p07gbar	2:e869ee8f3c3d	724	DWORD wsect;
p07gbar	2:e869ee8f3c3d	725
p07gbar	2:e869ee8f3c3d	726
p07gbar	2:e869ee8f3c3d	727	wsect = fs->winsect;
p07gbar	2:e869ee8f3c3d	728	if (wsect != sector) { /* Changed current window */
p07gbar	2:e869ee8f3c3d	729	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	730	if (fs->wflag) { /* Write back dirty window if needed */
p07gbar	2:e869ee8f3c3d	731	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK)
p07gbar	2:e869ee8f3c3d	732	return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	733	fs->wflag = 0;
p07gbar	2:e869ee8f3c3d	734	if (wsect < (fs->fatbase + fs->fsize)) { /* In FAT area */
p07gbar	2:e869ee8f3c3d	735	BYTE nf;
p07gbar	2:e869ee8f3c3d	736	for (nf = fs->n_fats; nf > 1; nf--) { /* Reflect the change to all FAT copies */
p07gbar	2:e869ee8f3c3d	737	wsect += fs->fsize;
p07gbar	2:e869ee8f3c3d	738	disk_write(fs->drv, fs->win, wsect, 1);
p07gbar	2:e869ee8f3c3d	739	}
p07gbar	2:e869ee8f3c3d	740	}
p07gbar	2:e869ee8f3c3d	741	}
p07gbar	2:e869ee8f3c3d	742	#endif
p07gbar	2:e869ee8f3c3d	743	if (sector) {
p07gbar	2:e869ee8f3c3d	744	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK)
p07gbar	2:e869ee8f3c3d	745	return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	746	fs->winsect = sector;
p07gbar	2:e869ee8f3c3d	747	}
p07gbar	2:e869ee8f3c3d	748	}
p07gbar	2:e869ee8f3c3d	749
p07gbar	2:e869ee8f3c3d	750	return FR_OK;
p07gbar	2:e869ee8f3c3d	751	}
p07gbar	2:e869ee8f3c3d	752
p07gbar	2:e869ee8f3c3d	753
p07gbar	2:e869ee8f3c3d	754
p07gbar	2:e869ee8f3c3d	755
p07gbar	2:e869ee8f3c3d	756	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	757	/* Clean-up cached data */
p07gbar	2:e869ee8f3c3d	758	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	759	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	760	static
p07gbar	2:e869ee8f3c3d	761	FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */
p07gbar	2:e869ee8f3c3d	762	FATFS fs / File system object */
p07gbar	2:e869ee8f3c3d	763	)
p07gbar	2:e869ee8f3c3d	764	{
p07gbar	2:e869ee8f3c3d	765	FRESULT res;
p07gbar	2:e869ee8f3c3d	766
p07gbar	2:e869ee8f3c3d	767
p07gbar	2:e869ee8f3c3d	768	res = move_window(fs, 0);
p07gbar	2:e869ee8f3c3d	769	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	770	/* Update FSInfo sector if needed */
p07gbar	2:e869ee8f3c3d	771	if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
p07gbar	2:e869ee8f3c3d	772	fs->winsect = 0;
p07gbar	2:e869ee8f3c3d	773	/* Create FSInfo structure */
p07gbar	2:e869ee8f3c3d	774	mem_set(fs->win, 0, 512);
p07gbar	2:e869ee8f3c3d	775	ST_WORD(fs->win+BS_55AA, 0xAA55);
p07gbar	2:e869ee8f3c3d	776	ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
p07gbar	2:e869ee8f3c3d	777	ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
p07gbar	2:e869ee8f3c3d	778	ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
p07gbar	2:e869ee8f3c3d	779	ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
p07gbar	2:e869ee8f3c3d	780	/* Write it into the FSInfo sector */
p07gbar	2:e869ee8f3c3d	781	disk_write(fs->drv, fs->win, fs->fsi_sector, 1);
p07gbar	2:e869ee8f3c3d	782	fs->fsi_flag = 0;
p07gbar	2:e869ee8f3c3d	783	}
p07gbar	2:e869ee8f3c3d	784	/* Make sure that no pending write process in the physical drive */
p07gbar	2:e869ee8f3c3d	785	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
p07gbar	2:e869ee8f3c3d	786	res = FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	787	}
p07gbar	2:e869ee8f3c3d	788
p07gbar	2:e869ee8f3c3d	789	return res;
p07gbar	2:e869ee8f3c3d	790	}
p07gbar	2:e869ee8f3c3d	791	#endif
p07gbar	2:e869ee8f3c3d	792
p07gbar	2:e869ee8f3c3d	793
p07gbar	2:e869ee8f3c3d	794
p07gbar	2:e869ee8f3c3d	795
p07gbar	2:e869ee8f3c3d	796	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	797	/* Get sector# from cluster# */
p07gbar	2:e869ee8f3c3d	798	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	799
p07gbar	2:e869ee8f3c3d	800
p07gbar	2:e869ee8f3c3d	801	DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
p07gbar	2:e869ee8f3c3d	802	FATFS fs, / File system object */
p07gbar	2:e869ee8f3c3d	803	DWORD clst /* Cluster# to be converted */
p07gbar	2:e869ee8f3c3d	804	)
p07gbar	2:e869ee8f3c3d	805	{
p07gbar	2:e869ee8f3c3d	806	clst -= 2;
p07gbar	2:e869ee8f3c3d	807	if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
p07gbar	2:e869ee8f3c3d	808	return clst * fs->csize + fs->database;
p07gbar	2:e869ee8f3c3d	809	}
p07gbar	2:e869ee8f3c3d	810
p07gbar	2:e869ee8f3c3d	811
p07gbar	2:e869ee8f3c3d	812
p07gbar	2:e869ee8f3c3d	813
p07gbar	2:e869ee8f3c3d	814	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	815	/* FAT access - Read value of a FAT entry */
p07gbar	2:e869ee8f3c3d	816	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	817
p07gbar	2:e869ee8f3c3d	818
p07gbar	2:e869ee8f3c3d	819	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
p07gbar	2:e869ee8f3c3d	820	FATFS fs, / File system object */
p07gbar	2:e869ee8f3c3d	821	DWORD clst /* Cluster# to get the link information */
p07gbar	2:e869ee8f3c3d	822	)
p07gbar	2:e869ee8f3c3d	823	{
p07gbar	2:e869ee8f3c3d	824	UINT wc, bc;
p07gbar	2:e869ee8f3c3d	825	BYTE *p;
p07gbar	2:e869ee8f3c3d	826
p07gbar	2:e869ee8f3c3d	827
p07gbar	2:e869ee8f3c3d	828	if (clst < 2 \|\| clst >= fs->n_fatent) /* Chack range */
p07gbar	2:e869ee8f3c3d	829	return 1;
p07gbar	2:e869ee8f3c3d	830
p07gbar	2:e869ee8f3c3d	831	switch (fs->fs_type) {
p07gbar	2:e869ee8f3c3d	832	case FS_FAT12 :
p07gbar	2:e869ee8f3c3d	833	bc = (UINT)clst; bc += bc / 2;
p07gbar	2:e869ee8f3c3d	834	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
p07gbar	2:e869ee8f3c3d	835	wc = fs->win[bc % SS(fs)]; bc++;
p07gbar	2:e869ee8f3c3d	836	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
p07gbar	2:e869ee8f3c3d	837	wc \|= fs->win[bc % SS(fs)] << 8;
p07gbar	2:e869ee8f3c3d	838	return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
p07gbar	2:e869ee8f3c3d	839
p07gbar	2:e869ee8f3c3d	840	case FS_FAT16 :
p07gbar	2:e869ee8f3c3d	841	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
p07gbar	2:e869ee8f3c3d	842	p = &fs->win[clst * 2 % SS(fs)];
p07gbar	2:e869ee8f3c3d	843	return LD_WORD(p);
p07gbar	2:e869ee8f3c3d	844
p07gbar	2:e869ee8f3c3d	845	case FS_FAT32 :
p07gbar	2:e869ee8f3c3d	846	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
p07gbar	2:e869ee8f3c3d	847	p = &fs->win[clst * 4 % SS(fs)];
p07gbar	2:e869ee8f3c3d	848	return LD_DWORD(p) & 0x0FFFFFFF;
p07gbar	2:e869ee8f3c3d	849	}
p07gbar	2:e869ee8f3c3d	850
p07gbar	2:e869ee8f3c3d	851	return 0xFFFFFFFF; /* An error occurred at the disk I/O layer */
p07gbar	2:e869ee8f3c3d	852	}
p07gbar	2:e869ee8f3c3d	853
p07gbar	2:e869ee8f3c3d	854
p07gbar	2:e869ee8f3c3d	855
p07gbar	2:e869ee8f3c3d	856
p07gbar	2:e869ee8f3c3d	857	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	858	/* FAT access - Change value of a FAT entry */
p07gbar	2:e869ee8f3c3d	859	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	860	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	861
p07gbar	2:e869ee8f3c3d	862	FRESULT put_fat (
p07gbar	2:e869ee8f3c3d	863	FATFS fs, / File system object */
p07gbar	2:e869ee8f3c3d	864	DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
p07gbar	2:e869ee8f3c3d	865	DWORD val /* New value to mark the cluster */
p07gbar	2:e869ee8f3c3d	866	)
p07gbar	2:e869ee8f3c3d	867	{
p07gbar	2:e869ee8f3c3d	868	UINT bc;
p07gbar	2:e869ee8f3c3d	869	BYTE *p;
p07gbar	2:e869ee8f3c3d	870	FRESULT res;
p07gbar	2:e869ee8f3c3d	871
p07gbar	2:e869ee8f3c3d	872
p07gbar	2:e869ee8f3c3d	873	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
p07gbar	2:e869ee8f3c3d	874	res = FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	875
p07gbar	2:e869ee8f3c3d	876	} else {
p07gbar	2:e869ee8f3c3d	877	switch (fs->fs_type) {
p07gbar	2:e869ee8f3c3d	878	case FS_FAT12 :
p07gbar	2:e869ee8f3c3d	879	bc = clst; bc += bc / 2;
p07gbar	2:e869ee8f3c3d	880	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
p07gbar	2:e869ee8f3c3d	881	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	882	p = &fs->win[bc % SS(fs)];
p07gbar	2:e869ee8f3c3d	883	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
p07gbar	2:e869ee8f3c3d	884	bc++;
p07gbar	2:e869ee8f3c3d	885	fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	886	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
p07gbar	2:e869ee8f3c3d	887	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	888	p = &fs->win[bc % SS(fs)];
p07gbar	2:e869ee8f3c3d	889	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
p07gbar	2:e869ee8f3c3d	890	break;
p07gbar	2:e869ee8f3c3d	891
p07gbar	2:e869ee8f3c3d	892	case FS_FAT16 :
p07gbar	2:e869ee8f3c3d	893	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
p07gbar	2:e869ee8f3c3d	894	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	895	p = &fs->win[clst * 2 % SS(fs)];
p07gbar	2:e869ee8f3c3d	896	ST_WORD(p, (WORD)val);
p07gbar	2:e869ee8f3c3d	897	break;
p07gbar	2:e869ee8f3c3d	898
p07gbar	2:e869ee8f3c3d	899	case FS_FAT32 :
p07gbar	2:e869ee8f3c3d	900	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
p07gbar	2:e869ee8f3c3d	901	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	902	p = &fs->win[clst * 4 % SS(fs)];
p07gbar	2:e869ee8f3c3d	903	val \|= LD_DWORD(p) & 0xF0000000;
p07gbar	2:e869ee8f3c3d	904	ST_DWORD(p, val);
p07gbar	2:e869ee8f3c3d	905	break;
p07gbar	2:e869ee8f3c3d	906
p07gbar	2:e869ee8f3c3d	907	default :
p07gbar	2:e869ee8f3c3d	908	res = FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	909	}
p07gbar	2:e869ee8f3c3d	910	fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	911	}
p07gbar	2:e869ee8f3c3d	912
p07gbar	2:e869ee8f3c3d	913	return res;
p07gbar	2:e869ee8f3c3d	914	}
p07gbar	2:e869ee8f3c3d	915	#endif /* !_FS_READONLY */
p07gbar	2:e869ee8f3c3d	916
p07gbar	2:e869ee8f3c3d	917
p07gbar	2:e869ee8f3c3d	918
p07gbar	2:e869ee8f3c3d	919
p07gbar	2:e869ee8f3c3d	920	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	921	/* FAT handling - Remove a cluster chain */
p07gbar	2:e869ee8f3c3d	922	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	923	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	924	static
p07gbar	2:e869ee8f3c3d	925	FRESULT remove_chain (
p07gbar	2:e869ee8f3c3d	926	FATFS fs, / File system object */
p07gbar	2:e869ee8f3c3d	927	DWORD clst /* Cluster# to remove a chain from */
p07gbar	2:e869ee8f3c3d	928	)
p07gbar	2:e869ee8f3c3d	929	{
p07gbar	2:e869ee8f3c3d	930	FRESULT res;
p07gbar	2:e869ee8f3c3d	931	DWORD nxt;
p07gbar	2:e869ee8f3c3d	932	#if _USE_ERASE
p07gbar	2:e869ee8f3c3d	933	DWORD scl = clst, ecl = clst, resion[2];
p07gbar	2:e869ee8f3c3d	934	#endif
p07gbar	2:e869ee8f3c3d	935
p07gbar	2:e869ee8f3c3d	936	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
p07gbar	2:e869ee8f3c3d	937	res = FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	938
p07gbar	2:e869ee8f3c3d	939	} else {
p07gbar	2:e869ee8f3c3d	940	res = FR_OK;
p07gbar	2:e869ee8f3c3d	941	while (clst < fs->n_fatent) { /* Not a last link? */
p07gbar	2:e869ee8f3c3d	942	nxt = get_fat(fs, clst); /* Get cluster status */
p07gbar	2:e869ee8f3c3d	943	if (nxt == 0) break; /* Empty cluster? */
p07gbar	2:e869ee8f3c3d	944	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
p07gbar	2:e869ee8f3c3d	945	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
p07gbar	2:e869ee8f3c3d	946	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
p07gbar	2:e869ee8f3c3d	947	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	948	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */
p07gbar	2:e869ee8f3c3d	949	fs->free_clust++;
p07gbar	2:e869ee8f3c3d	950	fs->fsi_flag = 1;
p07gbar	2:e869ee8f3c3d	951	}
p07gbar	2:e869ee8f3c3d	952	#if _USE_ERASE
p07gbar	2:e869ee8f3c3d	953	if (ecl + 1 == nxt) { /* Next cluster is contiguous */
p07gbar	2:e869ee8f3c3d	954	ecl = nxt;
p07gbar	2:e869ee8f3c3d	955	} else { /* End of contiguous clusters */
p07gbar	2:e869ee8f3c3d	956	resion[0] = clust2sect(fs, scl); /* Start sector */
p07gbar	2:e869ee8f3c3d	957	resion[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
p07gbar	2:e869ee8f3c3d	958	disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, resion); /* Erase the block */
p07gbar	2:e869ee8f3c3d	959	scl = ecl = nxt;
p07gbar	2:e869ee8f3c3d	960	}
p07gbar	2:e869ee8f3c3d	961	#endif
p07gbar	2:e869ee8f3c3d	962	clst = nxt; /* Next cluster */
p07gbar	2:e869ee8f3c3d	963	}
p07gbar	2:e869ee8f3c3d	964	}
p07gbar	2:e869ee8f3c3d	965
p07gbar	2:e869ee8f3c3d	966	return res;
p07gbar	2:e869ee8f3c3d	967	}
p07gbar	2:e869ee8f3c3d	968	#endif
p07gbar	2:e869ee8f3c3d	969
p07gbar	2:e869ee8f3c3d	970
p07gbar	2:e869ee8f3c3d	971
p07gbar	2:e869ee8f3c3d	972
p07gbar	2:e869ee8f3c3d	973	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	974	/* FAT handling - Stretch or Create a cluster chain */
p07gbar	2:e869ee8f3c3d	975	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	976	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	977	static
p07gbar	2:e869ee8f3c3d	978	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
p07gbar	2:e869ee8f3c3d	979	FATFS fs, / File system object */
p07gbar	2:e869ee8f3c3d	980	DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
p07gbar	2:e869ee8f3c3d	981	)
p07gbar	2:e869ee8f3c3d	982	{
p07gbar	2:e869ee8f3c3d	983	DWORD cs, ncl, scl;
p07gbar	2:e869ee8f3c3d	984	FRESULT res;
p07gbar	2:e869ee8f3c3d	985
p07gbar	2:e869ee8f3c3d	986
p07gbar	2:e869ee8f3c3d	987	if (clst == 0) { /* Create a new chain */
p07gbar	2:e869ee8f3c3d	988	scl = fs->last_clust; /* Get suggested start point */
p07gbar	2:e869ee8f3c3d	989	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
p07gbar	2:e869ee8f3c3d	990	}
p07gbar	2:e869ee8f3c3d	991	else { /* Stretch the current chain */
p07gbar	2:e869ee8f3c3d	992	cs = get_fat(fs, clst); /* Check the cluster status */
p07gbar	2:e869ee8f3c3d	993	if (cs < 2) return 1; /* It is an invalid cluster */
p07gbar	2:e869ee8f3c3d	994	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
p07gbar	2:e869ee8f3c3d	995	scl = clst;
p07gbar	2:e869ee8f3c3d	996	}
p07gbar	2:e869ee8f3c3d	997
p07gbar	2:e869ee8f3c3d	998	ncl = scl; /* Start cluster */
p07gbar	2:e869ee8f3c3d	999	for (;;) {
p07gbar	2:e869ee8f3c3d	1000	ncl++; /* Next cluster */
p07gbar	2:e869ee8f3c3d	1001	if (ncl >= fs->n_fatent) { /* Wrap around */
p07gbar	2:e869ee8f3c3d	1002	ncl = 2;
p07gbar	2:e869ee8f3c3d	1003	if (ncl > scl) return 0; /* No free cluster */
p07gbar	2:e869ee8f3c3d	1004	}
p07gbar	2:e869ee8f3c3d	1005	cs = get_fat(fs, ncl); /* Get the cluster status */
p07gbar	2:e869ee8f3c3d	1006	if (cs == 0) break; /* Found a free cluster */
p07gbar	2:e869ee8f3c3d	1007	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
p07gbar	2:e869ee8f3c3d	1008	return cs;
p07gbar	2:e869ee8f3c3d	1009	if (ncl == scl) return 0; /* No free cluster */
p07gbar	2:e869ee8f3c3d	1010	}
p07gbar	2:e869ee8f3c3d	1011
p07gbar	2:e869ee8f3c3d	1012	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
p07gbar	2:e869ee8f3c3d	1013	if (res == FR_OK && clst != 0) {
p07gbar	2:e869ee8f3c3d	1014	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
p07gbar	2:e869ee8f3c3d	1015	}
p07gbar	2:e869ee8f3c3d	1016	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	1017	fs->last_clust = ncl; /* Update FSINFO */
p07gbar	2:e869ee8f3c3d	1018	if (fs->free_clust != 0xFFFFFFFF) {
p07gbar	2:e869ee8f3c3d	1019	fs->free_clust--;
p07gbar	2:e869ee8f3c3d	1020	fs->fsi_flag = 1;
p07gbar	2:e869ee8f3c3d	1021	}
p07gbar	2:e869ee8f3c3d	1022	} else {
p07gbar	2:e869ee8f3c3d	1023	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
p07gbar	2:e869ee8f3c3d	1024	}
p07gbar	2:e869ee8f3c3d	1025
p07gbar	2:e869ee8f3c3d	1026	return ncl; /* Return new cluster number or error code */
p07gbar	2:e869ee8f3c3d	1027	}
p07gbar	2:e869ee8f3c3d	1028	#endif /* !_FS_READONLY */
p07gbar	2:e869ee8f3c3d	1029
p07gbar	2:e869ee8f3c3d	1030
p07gbar	2:e869ee8f3c3d	1031
p07gbar	2:e869ee8f3c3d	1032	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1033	/* FAT handling - Convert offset into cluster with link map table */
p07gbar	2:e869ee8f3c3d	1034	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1035
p07gbar	2:e869ee8f3c3d	1036	#if _USE_FASTSEEK
p07gbar	2:e869ee8f3c3d	1037	static
p07gbar	2:e869ee8f3c3d	1038	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
p07gbar	2:e869ee8f3c3d	1039	FIL* fp, /* Pointer to the file object */
p07gbar	2:e869ee8f3c3d	1040	DWORD ofs /* File offset to be converted to cluster# */
p07gbar	2:e869ee8f3c3d	1041	)
p07gbar	2:e869ee8f3c3d	1042	{
p07gbar	2:e869ee8f3c3d	1043	DWORD cl, ncl, *tbl;
p07gbar	2:e869ee8f3c3d	1044
p07gbar	2:e869ee8f3c3d	1045
p07gbar	2:e869ee8f3c3d	1046	tbl = fp->cltbl + 1; /* Top of CLMT */
p07gbar	2:e869ee8f3c3d	1047	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
p07gbar	2:e869ee8f3c3d	1048	for (;;) {
p07gbar	2:e869ee8f3c3d	1049	ncl = tbl++; / Number of cluters in the fragment */
p07gbar	2:e869ee8f3c3d	1050	if (!ncl) return 0; /* End of table? (error) */
p07gbar	2:e869ee8f3c3d	1051	if (cl < ncl) break; /* In this fragment? */
p07gbar	2:e869ee8f3c3d	1052	cl -= ncl; tbl++; /* Next fragment */
p07gbar	2:e869ee8f3c3d	1053	}
p07gbar	2:e869ee8f3c3d	1054	return cl + tbl; / Return the cluster number */
p07gbar	2:e869ee8f3c3d	1055	}
p07gbar	2:e869ee8f3c3d	1056	#endif /* _USE_FASTSEEK */
p07gbar	2:e869ee8f3c3d	1057
p07gbar	2:e869ee8f3c3d	1058
p07gbar	2:e869ee8f3c3d	1059
p07gbar	2:e869ee8f3c3d	1060	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1061	/* Directory handling - Set directory index */
p07gbar	2:e869ee8f3c3d	1062	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1063
p07gbar	2:e869ee8f3c3d	1064	static
p07gbar	2:e869ee8f3c3d	1065	FRESULT dir_sdi (
p07gbar	2:e869ee8f3c3d	1066	FATFS_DIR dj, / Pointer to directory object */
p07gbar	2:e869ee8f3c3d	1067	WORD idx /* Directory index number */
p07gbar	2:e869ee8f3c3d	1068	)
p07gbar	2:e869ee8f3c3d	1069	{
p07gbar	2:e869ee8f3c3d	1070	DWORD clst;
p07gbar	2:e869ee8f3c3d	1071	WORD ic;
p07gbar	2:e869ee8f3c3d	1072
p07gbar	2:e869ee8f3c3d	1073
p07gbar	2:e869ee8f3c3d	1074	dj->index = idx;
p07gbar	2:e869ee8f3c3d	1075	clst = dj->sclust;
p07gbar	2:e869ee8f3c3d	1076	if (clst == 1 \|\| clst >= dj->fs->n_fatent) /* Check start cluster range */
p07gbar	2:e869ee8f3c3d	1077	return FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	1078	if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
p07gbar	2:e869ee8f3c3d	1079	clst = dj->fs->dirbase;
p07gbar	2:e869ee8f3c3d	1080
p07gbar	2:e869ee8f3c3d	1081	if (clst == 0) { /* Static table (root-dir in FAT12/16) */
p07gbar	2:e869ee8f3c3d	1082	dj->clust = clst;
p07gbar	2:e869ee8f3c3d	1083	if (idx >= dj->fs->n_rootdir) /* Index is out of range */
p07gbar	2:e869ee8f3c3d	1084	return FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	1085	dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
p07gbar	2:e869ee8f3c3d	1086	}
p07gbar	2:e869ee8f3c3d	1087	else { /* Dynamic table (sub-dirs or root-dir in FAT32) */
p07gbar	2:e869ee8f3c3d	1088	ic = SS(dj->fs) / SZ_DIR * dj->fs->csize; /* Entries per cluster */
p07gbar	2:e869ee8f3c3d	1089	while (idx >= ic) { /* Follow cluster chain */
p07gbar	2:e869ee8f3c3d	1090	clst = get_fat(dj->fs, clst); /* Get next cluster */
p07gbar	2:e869ee8f3c3d	1091	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
p07gbar	2:e869ee8f3c3d	1092	if (clst < 2 \|\| clst >= dj->fs->n_fatent) /* Reached to end of table or int error */
p07gbar	2:e869ee8f3c3d	1093	return FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	1094	idx -= ic;
p07gbar	2:e869ee8f3c3d	1095	}
p07gbar	2:e869ee8f3c3d	1096	dj->clust = clst;
p07gbar	2:e869ee8f3c3d	1097	dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
p07gbar	2:e869ee8f3c3d	1098	}
p07gbar	2:e869ee8f3c3d	1099
p07gbar	2:e869ee8f3c3d	1100	dj->dir = dj->fs->win + (idx % (SS(dj->fs) / SZ_DIR)) * SZ_DIR; /* Ptr to the entry in the sector */
p07gbar	2:e869ee8f3c3d	1101
p07gbar	2:e869ee8f3c3d	1102	return FR_OK; /* Seek succeeded */
p07gbar	2:e869ee8f3c3d	1103	}
p07gbar	2:e869ee8f3c3d	1104
p07gbar	2:e869ee8f3c3d	1105
p07gbar	2:e869ee8f3c3d	1106
p07gbar	2:e869ee8f3c3d	1107
p07gbar	2:e869ee8f3c3d	1108	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1109	/* Directory handling - Move directory index next */
p07gbar	2:e869ee8f3c3d	1110	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1111
p07gbar	2:e869ee8f3c3d	1112	static
p07gbar	2:e869ee8f3c3d	1113	FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not stretch */
p07gbar	2:e869ee8f3c3d	1114	FATFS_DIR dj, / Pointer to directory object */
p07gbar	2:e869ee8f3c3d	1115	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
p07gbar	2:e869ee8f3c3d	1116	)
p07gbar	2:e869ee8f3c3d	1117	{
p07gbar	2:e869ee8f3c3d	1118	DWORD clst;
p07gbar	2:e869ee8f3c3d	1119	WORD i;
p07gbar	2:e869ee8f3c3d	1120
p07gbar	2:e869ee8f3c3d	1121
p07gbar	2:e869ee8f3c3d	1122	stretch = stretch; /* To suppress warning on read-only cfg. */
p07gbar	2:e869ee8f3c3d	1123	i = dj->index + 1;
p07gbar	2:e869ee8f3c3d	1124	if (!i \|\| !dj->sect) /* Report EOT when index has reached 65535 */
p07gbar	2:e869ee8f3c3d	1125	return FR_NO_FILE;
p07gbar	2:e869ee8f3c3d	1126
p07gbar	2:e869ee8f3c3d	1127	if (!(i % (SS(dj->fs) / SZ_DIR))) { /* Sector changed? */
p07gbar	2:e869ee8f3c3d	1128	dj->sect++; /* Next sector */
p07gbar	2:e869ee8f3c3d	1129
p07gbar	2:e869ee8f3c3d	1130	if (dj->clust == 0) { /* Static table */
p07gbar	2:e869ee8f3c3d	1131	if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */
p07gbar	2:e869ee8f3c3d	1132	return FR_NO_FILE;
p07gbar	2:e869ee8f3c3d	1133	}
p07gbar	2:e869ee8f3c3d	1134	else { /* Dynamic table */
p07gbar	2:e869ee8f3c3d	1135	if (((i / (SS(dj->fs) / SZ_DIR)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
p07gbar	2:e869ee8f3c3d	1136	clst = get_fat(dj->fs, dj->clust); /* Get next cluster */
p07gbar	2:e869ee8f3c3d	1137	if (clst <= 1) return FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	1138	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	1139	if (clst >= dj->fs->n_fatent) { /* When it reached end of dynamic table */
p07gbar	2:e869ee8f3c3d	1140	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	1141	BYTE c;
p07gbar	2:e869ee8f3c3d	1142	if (!stretch) return FR_NO_FILE; /* When do not stretch, report EOT */
p07gbar	2:e869ee8f3c3d	1143	clst = create_chain(dj->fs, dj->clust); /* Stretch cluster chain */
p07gbar	2:e869ee8f3c3d	1144	if (clst == 0) return FR_DENIED; /* No free cluster */
p07gbar	2:e869ee8f3c3d	1145	if (clst == 1) return FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	1146	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	1147	/* Clean-up stretched table */
p07gbar	2:e869ee8f3c3d	1148	if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */
p07gbar	2:e869ee8f3c3d	1149	mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */
p07gbar	2:e869ee8f3c3d	1150	dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */
p07gbar	2:e869ee8f3c3d	1151	for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */
p07gbar	2:e869ee8f3c3d	1152	dj->fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	1153	if (move_window(dj->fs, 0)) return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	1154	dj->fs->winsect++;
p07gbar	2:e869ee8f3c3d	1155	}
p07gbar	2:e869ee8f3c3d	1156	dj->fs->winsect -= c; /* Rewind window address */
p07gbar	2:e869ee8f3c3d	1157	#else
p07gbar	2:e869ee8f3c3d	1158	return FR_NO_FILE; /* Report EOT */
p07gbar	2:e869ee8f3c3d	1159	#endif
p07gbar	2:e869ee8f3c3d	1160	}
p07gbar	2:e869ee8f3c3d	1161	dj->clust = clst; /* Initialize data for new cluster */
p07gbar	2:e869ee8f3c3d	1162	dj->sect = clust2sect(dj->fs, clst);
p07gbar	2:e869ee8f3c3d	1163	}
p07gbar	2:e869ee8f3c3d	1164	}
p07gbar	2:e869ee8f3c3d	1165	}
p07gbar	2:e869ee8f3c3d	1166
p07gbar	2:e869ee8f3c3d	1167	dj->index = i;
p07gbar	2:e869ee8f3c3d	1168	dj->dir = dj->fs->win + (i % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;
p07gbar	2:e869ee8f3c3d	1169
p07gbar	2:e869ee8f3c3d	1170	return FR_OK;
p07gbar	2:e869ee8f3c3d	1171	}
p07gbar	2:e869ee8f3c3d	1172
p07gbar	2:e869ee8f3c3d	1173
p07gbar	2:e869ee8f3c3d	1174
p07gbar	2:e869ee8f3c3d	1175
p07gbar	2:e869ee8f3c3d	1176	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1177	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
p07gbar	2:e869ee8f3c3d	1178	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1179	#if _USE_LFN
p07gbar	2:e869ee8f3c3d	1180	static
p07gbar	2:e869ee8f3c3d	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 */
p07gbar	2:e869ee8f3c3d	1182
p07gbar	2:e869ee8f3c3d	1183
p07gbar	2:e869ee8f3c3d	1184	static
p07gbar	2:e869ee8f3c3d	1185	int cmp_lfn ( /* 1:Matched, 0:Not matched */
p07gbar	2:e869ee8f3c3d	1186	WCHAR lfnbuf, / Pointer to the LFN to be compared */
p07gbar	2:e869ee8f3c3d	1187	BYTE dir / Pointer to the directory entry containing a part of LFN */
p07gbar	2:e869ee8f3c3d	1188	)
p07gbar	2:e869ee8f3c3d	1189	{
p07gbar	2:e869ee8f3c3d	1190	UINT i, s;
p07gbar	2:e869ee8f3c3d	1191	WCHAR wc, uc;
p07gbar	2:e869ee8f3c3d	1192
p07gbar	2:e869ee8f3c3d	1193
p07gbar	2:e869ee8f3c3d	1194	i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
p07gbar	2:e869ee8f3c3d	1195	s = 0; wc = 1;
p07gbar	2:e869ee8f3c3d	1196	do {
p07gbar	2:e869ee8f3c3d	1197	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
p07gbar	2:e869ee8f3c3d	1198	if (wc) { /* Last char has not been processed */
p07gbar	2:e869ee8f3c3d	1199	wc = ff_wtoupper(uc); /* Convert it to upper case */
p07gbar	2:e869ee8f3c3d	1200	if (i >= _MAX_LFN \|\| wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
p07gbar	2:e869ee8f3c3d	1201	return 0; /* Not matched */
p07gbar	2:e869ee8f3c3d	1202	} else {
p07gbar	2:e869ee8f3c3d	1203	if (uc != 0xFFFF) return 0; /* Check filler */
p07gbar	2:e869ee8f3c3d	1204	}
p07gbar	2:e869ee8f3c3d	1205	} while (++s < 13); /* Repeat until all chars in the entry are checked */
p07gbar	2:e869ee8f3c3d	1206
p07gbar	2:e869ee8f3c3d	1207	if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) /* Last segment matched but different length */
p07gbar	2:e869ee8f3c3d	1208	return 0;
p07gbar	2:e869ee8f3c3d	1209
p07gbar	2:e869ee8f3c3d	1210	return 1; /* The part of LFN matched */
p07gbar	2:e869ee8f3c3d	1211	}
p07gbar	2:e869ee8f3c3d	1212
p07gbar	2:e869ee8f3c3d	1213
p07gbar	2:e869ee8f3c3d	1214
p07gbar	2:e869ee8f3c3d	1215	static
p07gbar	2:e869ee8f3c3d	1216	int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
p07gbar	2:e869ee8f3c3d	1217	WCHAR lfnbuf, / Pointer to the Unicode-LFN buffer */
p07gbar	2:e869ee8f3c3d	1218	BYTE dir / Pointer to the directory entry */
p07gbar	2:e869ee8f3c3d	1219	)
p07gbar	2:e869ee8f3c3d	1220	{
p07gbar	2:e869ee8f3c3d	1221	UINT i, s;
p07gbar	2:e869ee8f3c3d	1222	WCHAR wc, uc;
p07gbar	2:e869ee8f3c3d	1223
p07gbar	2:e869ee8f3c3d	1224
p07gbar	2:e869ee8f3c3d	1225	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
p07gbar	2:e869ee8f3c3d	1226
p07gbar	2:e869ee8f3c3d	1227	s = 0; wc = 1;
p07gbar	2:e869ee8f3c3d	1228	do {
p07gbar	2:e869ee8f3c3d	1229	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
p07gbar	2:e869ee8f3c3d	1230	if (wc) { /* Last char has not been processed */
p07gbar	2:e869ee8f3c3d	1231	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
p07gbar	2:e869ee8f3c3d	1232	lfnbuf[i++] = wc = uc; /* Store it */
p07gbar	2:e869ee8f3c3d	1233	} else {
p07gbar	2:e869ee8f3c3d	1234	if (uc != 0xFFFF) return 0; /* Check filler */
p07gbar	2:e869ee8f3c3d	1235	}
p07gbar	2:e869ee8f3c3d	1236	} while (++s < 13); /* Read all character in the entry */
p07gbar	2:e869ee8f3c3d	1237
p07gbar	2:e869ee8f3c3d	1238	if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
p07gbar	2:e869ee8f3c3d	1239	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
p07gbar	2:e869ee8f3c3d	1240	lfnbuf[i] = 0;
p07gbar	2:e869ee8f3c3d	1241	}
p07gbar	2:e869ee8f3c3d	1242
p07gbar	2:e869ee8f3c3d	1243	return 1;
p07gbar	2:e869ee8f3c3d	1244	}
p07gbar	2:e869ee8f3c3d	1245
p07gbar	2:e869ee8f3c3d	1246
p07gbar	2:e869ee8f3c3d	1247	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	1248	static
p07gbar	2:e869ee8f3c3d	1249	void fit_lfn (
p07gbar	2:e869ee8f3c3d	1250	const WCHAR lfnbuf, / Pointer to the LFN buffer */
p07gbar	2:e869ee8f3c3d	1251	BYTE dir, / Pointer to the directory entry */
p07gbar	2:e869ee8f3c3d	1252	BYTE ord, /* LFN order (1-20) */
p07gbar	2:e869ee8f3c3d	1253	BYTE sum /* SFN sum */
p07gbar	2:e869ee8f3c3d	1254	)
p07gbar	2:e869ee8f3c3d	1255	{
p07gbar	2:e869ee8f3c3d	1256	UINT i, s;
p07gbar	2:e869ee8f3c3d	1257	WCHAR wc;
p07gbar	2:e869ee8f3c3d	1258
p07gbar	2:e869ee8f3c3d	1259
p07gbar	2:e869ee8f3c3d	1260	dir[LDIR_Chksum] = sum; /* Set check sum */
p07gbar	2:e869ee8f3c3d	1261	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
p07gbar	2:e869ee8f3c3d	1262	dir[LDIR_Type] = 0;
p07gbar	2:e869ee8f3c3d	1263	ST_WORD(dir+LDIR_FstClusLO, 0);
p07gbar	2:e869ee8f3c3d	1264
p07gbar	2:e869ee8f3c3d	1265	i = (ord - 1) * 13; /* Get offset in the LFN buffer */
p07gbar	2:e869ee8f3c3d	1266	s = wc = 0;
p07gbar	2:e869ee8f3c3d	1267	do {
p07gbar	2:e869ee8f3c3d	1268	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */
p07gbar	2:e869ee8f3c3d	1269	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
p07gbar	2:e869ee8f3c3d	1270	if (!wc) wc = 0xFFFF; /* Padding chars following last char */
p07gbar	2:e869ee8f3c3d	1271	} while (++s < 13);
p07gbar	2:e869ee8f3c3d	1272	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLE; /* Bottom LFN part is the start of LFN sequence */
p07gbar	2:e869ee8f3c3d	1273	dir[LDIR_Ord] = ord; /* Set the LFN order */
p07gbar	2:e869ee8f3c3d	1274	}
p07gbar	2:e869ee8f3c3d	1275
p07gbar	2:e869ee8f3c3d	1276	#endif
p07gbar	2:e869ee8f3c3d	1277	#endif
p07gbar	2:e869ee8f3c3d	1278
p07gbar	2:e869ee8f3c3d	1279
p07gbar	2:e869ee8f3c3d	1280
p07gbar	2:e869ee8f3c3d	1281	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1282	/* Create numbered name */
p07gbar	2:e869ee8f3c3d	1283	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1284	#if _USE_LFN
p07gbar	2:e869ee8f3c3d	1285	void gen_numname (
p07gbar	2:e869ee8f3c3d	1286	BYTE dst, / Pointer to generated SFN */
p07gbar	2:e869ee8f3c3d	1287	const BYTE src, / Pointer to source SFN to be modified */
p07gbar	2:e869ee8f3c3d	1288	const WCHAR lfn, / Pointer to LFN */
p07gbar	2:e869ee8f3c3d	1289	WORD seq /* Sequence number */
p07gbar	2:e869ee8f3c3d	1290	)
p07gbar	2:e869ee8f3c3d	1291	{
p07gbar	2:e869ee8f3c3d	1292	BYTE ns[8], c;
p07gbar	2:e869ee8f3c3d	1293	UINT i, j;
p07gbar	2:e869ee8f3c3d	1294
p07gbar	2:e869ee8f3c3d	1295
p07gbar	2:e869ee8f3c3d	1296	mem_cpy(dst, src, 11);
p07gbar	2:e869ee8f3c3d	1297
p07gbar	2:e869ee8f3c3d	1298	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
p07gbar	2:e869ee8f3c3d	1299	do seq = (seq >> 1) + (seq << 15) + (WORD)lfn++; while (lfn);
p07gbar	2:e869ee8f3c3d	1300	}
p07gbar	2:e869ee8f3c3d	1301
p07gbar	2:e869ee8f3c3d	1302	/* itoa (hexdecimal) */
p07gbar	2:e869ee8f3c3d	1303	i = 7;
p07gbar	2:e869ee8f3c3d	1304	do {
p07gbar	2:e869ee8f3c3d	1305	c = (seq % 16) + '0';
p07gbar	2:e869ee8f3c3d	1306	if (c > '9') c += 7;
p07gbar	2:e869ee8f3c3d	1307	ns[i--] = c;
p07gbar	2:e869ee8f3c3d	1308	seq /= 16;
p07gbar	2:e869ee8f3c3d	1309	} while (seq);
p07gbar	2:e869ee8f3c3d	1310	ns[i] = '~';
p07gbar	2:e869ee8f3c3d	1311
p07gbar	2:e869ee8f3c3d	1312	/* Append the number */
p07gbar	2:e869ee8f3c3d	1313	for (j = 0; j < i && dst[j] != ' '; j++) {
p07gbar	2:e869ee8f3c3d	1314	if (IsDBCS1(dst[j])) {
p07gbar	2:e869ee8f3c3d	1315	if (j == i - 1) break;
p07gbar	2:e869ee8f3c3d	1316	j++;
p07gbar	2:e869ee8f3c3d	1317	}
p07gbar	2:e869ee8f3c3d	1318	}
p07gbar	2:e869ee8f3c3d	1319	do {
p07gbar	2:e869ee8f3c3d	1320	dst[j++] = (i < 8) ? ns[i++] : ' ';
p07gbar	2:e869ee8f3c3d	1321	} while (j < 8);
p07gbar	2:e869ee8f3c3d	1322	}
p07gbar	2:e869ee8f3c3d	1323	#endif
p07gbar	2:e869ee8f3c3d	1324
p07gbar	2:e869ee8f3c3d	1325
p07gbar	2:e869ee8f3c3d	1326
p07gbar	2:e869ee8f3c3d	1327
p07gbar	2:e869ee8f3c3d	1328	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1329	/* Calculate sum of an SFN */
p07gbar	2:e869ee8f3c3d	1330	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1331	#if _USE_LFN
p07gbar	2:e869ee8f3c3d	1332	static
p07gbar	2:e869ee8f3c3d	1333	BYTE sum_sfn (
p07gbar	2:e869ee8f3c3d	1334	const BYTE dir / Ptr to directory entry */
p07gbar	2:e869ee8f3c3d	1335	)
p07gbar	2:e869ee8f3c3d	1336	{
p07gbar	2:e869ee8f3c3d	1337	BYTE sum = 0;
p07gbar	2:e869ee8f3c3d	1338	UINT n = 11;
p07gbar	2:e869ee8f3c3d	1339
p07gbar	2:e869ee8f3c3d	1340	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
p07gbar	2:e869ee8f3c3d	1341	return sum;
p07gbar	2:e869ee8f3c3d	1342	}
p07gbar	2:e869ee8f3c3d	1343	#endif
p07gbar	2:e869ee8f3c3d	1344
p07gbar	2:e869ee8f3c3d	1345
p07gbar	2:e869ee8f3c3d	1346
p07gbar	2:e869ee8f3c3d	1347
p07gbar	2:e869ee8f3c3d	1348	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1349	/* Directory handling - Find an object in the directory */
p07gbar	2:e869ee8f3c3d	1350	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1351
p07gbar	2:e869ee8f3c3d	1352	static
p07gbar	2:e869ee8f3c3d	1353	FRESULT dir_find (
p07gbar	2:e869ee8f3c3d	1354	FATFS_DIR dj / Pointer to the directory object linked to the file name */
p07gbar	2:e869ee8f3c3d	1355	)
p07gbar	2:e869ee8f3c3d	1356	{
p07gbar	2:e869ee8f3c3d	1357	FRESULT res;
p07gbar	2:e869ee8f3c3d	1358	BYTE c, *dir;
p07gbar	2:e869ee8f3c3d	1359	#if _USE_LFN
p07gbar	2:e869ee8f3c3d	1360	BYTE a, ord, sum;
p07gbar	2:e869ee8f3c3d	1361	#endif
p07gbar	2:e869ee8f3c3d	1362
p07gbar	2:e869ee8f3c3d	1363	res = dir_sdi(dj, 0); /* Rewind directory object */
p07gbar	2:e869ee8f3c3d	1364	if (res != FR_OK) return res;
p07gbar	2:e869ee8f3c3d	1365
p07gbar	2:e869ee8f3c3d	1366	#if _USE_LFN
p07gbar	2:e869ee8f3c3d	1367	ord = sum = 0xFF;
p07gbar	2:e869ee8f3c3d	1368	#endif
p07gbar	2:e869ee8f3c3d	1369	do {
p07gbar	2:e869ee8f3c3d	1370	res = move_window(dj->fs, dj->sect);
p07gbar	2:e869ee8f3c3d	1371	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	1372	dir = dj->dir; /* Ptr to the directory entry of current index */
p07gbar	2:e869ee8f3c3d	1373	c = dir[DIR_Name];
p07gbar	2:e869ee8f3c3d	1374	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
p07gbar	2:e869ee8f3c3d	1375	#if _USE_LFN /* LFN configuration */
p07gbar	2:e869ee8f3c3d	1376	a = dir[DIR_Attr] & AM_MASK;
p07gbar	2:e869ee8f3c3d	1377	if (c == DDE \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
p07gbar	2:e869ee8f3c3d	1378	ord = 0xFF;
p07gbar	2:e869ee8f3c3d	1379	} else {
p07gbar	2:e869ee8f3c3d	1380	if (a == AM_LFN) { /* An LFN entry is found */
p07gbar	2:e869ee8f3c3d	1381	if (dj->lfn) {
p07gbar	2:e869ee8f3c3d	1382	if (c & LLE) { /* Is it start of LFN sequence? */
p07gbar	2:e869ee8f3c3d	1383	sum = dir[LDIR_Chksum];
p07gbar	2:e869ee8f3c3d	1384	c &= ~LLE; ord = c; /* LFN start order */
p07gbar	2:e869ee8f3c3d	1385	dj->lfn_idx = dj->index;
p07gbar	2:e869ee8f3c3d	1386	}
p07gbar	2:e869ee8f3c3d	1387	/* Check validity of the LFN entry and compare it with given name */
p07gbar	2:e869ee8f3c3d	1388	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
p07gbar	2:e869ee8f3c3d	1389	}
p07gbar	2:e869ee8f3c3d	1390	} else { /* An SFN entry is found */
p07gbar	2:e869ee8f3c3d	1391	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
p07gbar	2:e869ee8f3c3d	1392	ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */
p07gbar	2:e869ee8f3c3d	1393	if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */
p07gbar	2:e869ee8f3c3d	1394	}
p07gbar	2:e869ee8f3c3d	1395	}
p07gbar	2:e869ee8f3c3d	1396	#else /* Non LFN configuration */
p07gbar	2:e869ee8f3c3d	1397	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
p07gbar	2:e869ee8f3c3d	1398	break;
p07gbar	2:e869ee8f3c3d	1399	#endif
p07gbar	2:e869ee8f3c3d	1400	res = dir_next(dj, 0); /* Next entry */
p07gbar	2:e869ee8f3c3d	1401	} while (res == FR_OK);
p07gbar	2:e869ee8f3c3d	1402
p07gbar	2:e869ee8f3c3d	1403	return res;
p07gbar	2:e869ee8f3c3d	1404	}
p07gbar	2:e869ee8f3c3d	1405
p07gbar	2:e869ee8f3c3d	1406
p07gbar	2:e869ee8f3c3d	1407
p07gbar	2:e869ee8f3c3d	1408
p07gbar	2:e869ee8f3c3d	1409	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1410	/* Read an object from the directory */
p07gbar	2:e869ee8f3c3d	1411	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1412	#if _FS_MINIMIZE <= 1
p07gbar	2:e869ee8f3c3d	1413	static
p07gbar	2:e869ee8f3c3d	1414	FRESULT dir_read (
p07gbar	2:e869ee8f3c3d	1415	FATFS_DIR dj / Pointer to the directory object that pointing the entry to be read */
p07gbar	2:e869ee8f3c3d	1416	)
p07gbar	2:e869ee8f3c3d	1417	{
p07gbar	2:e869ee8f3c3d	1418	FRESULT res;
p07gbar	2:e869ee8f3c3d	1419	BYTE c, *dir;
p07gbar	2:e869ee8f3c3d	1420	#if _USE_LFN
p07gbar	2:e869ee8f3c3d	1421	BYTE a, ord = 0xFF, sum = 0xFF;
p07gbar	2:e869ee8f3c3d	1422	#endif
p07gbar	2:e869ee8f3c3d	1423
p07gbar	2:e869ee8f3c3d	1424	res = FR_NO_FILE;
p07gbar	2:e869ee8f3c3d	1425	while (dj->sect) {
p07gbar	2:e869ee8f3c3d	1426	res = move_window(dj->fs, dj->sect);
p07gbar	2:e869ee8f3c3d	1427	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	1428	dir = dj->dir; /* Ptr to the directory entry of current index */
p07gbar	2:e869ee8f3c3d	1429	c = dir[DIR_Name];
p07gbar	2:e869ee8f3c3d	1430	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
p07gbar	2:e869ee8f3c3d	1431	#if _USE_LFN /* LFN configuration */
p07gbar	2:e869ee8f3c3d	1432	a = dir[DIR_Attr] & AM_MASK;
p07gbar	2:e869ee8f3c3d	1433	if (c == DDE \|\| (!_FS_RPATH && c == '.') \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
p07gbar	2:e869ee8f3c3d	1434	ord = 0xFF;
p07gbar	2:e869ee8f3c3d	1435	} else {
p07gbar	2:e869ee8f3c3d	1436	if (a == AM_LFN) { /* An LFN entry is found */
p07gbar	2:e869ee8f3c3d	1437	if (c & LLE) { /* Is it start of LFN sequence? */
p07gbar	2:e869ee8f3c3d	1438	sum = dir[LDIR_Chksum];
p07gbar	2:e869ee8f3c3d	1439	c &= ~LLE; ord = c;
p07gbar	2:e869ee8f3c3d	1440	dj->lfn_idx = dj->index;
p07gbar	2:e869ee8f3c3d	1441	}
p07gbar	2:e869ee8f3c3d	1442	/* Check LFN validity and capture it */
p07gbar	2:e869ee8f3c3d	1443	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
p07gbar	2:e869ee8f3c3d	1444	} else { /* An SFN entry is found */
p07gbar	2:e869ee8f3c3d	1445	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
p07gbar	2:e869ee8f3c3d	1446	dj->lfn_idx = 0xFFFF; /* It has no LFN. */
p07gbar	2:e869ee8f3c3d	1447	break;
p07gbar	2:e869ee8f3c3d	1448	}
p07gbar	2:e869ee8f3c3d	1449	}
p07gbar	2:e869ee8f3c3d	1450	#else /* Non LFN configuration */
p07gbar	2:e869ee8f3c3d	1451	if (c != DDE && (_FS_RPATH \|\| c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
p07gbar	2:e869ee8f3c3d	1452	break;
p07gbar	2:e869ee8f3c3d	1453	#endif
p07gbar	2:e869ee8f3c3d	1454	res = dir_next(dj, 0); /* Next entry */
p07gbar	2:e869ee8f3c3d	1455	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	1456	}
p07gbar	2:e869ee8f3c3d	1457
p07gbar	2:e869ee8f3c3d	1458	if (res != FR_OK) dj->sect = 0;
p07gbar	2:e869ee8f3c3d	1459
p07gbar	2:e869ee8f3c3d	1460	return res;
p07gbar	2:e869ee8f3c3d	1461	}
p07gbar	2:e869ee8f3c3d	1462	#endif
p07gbar	2:e869ee8f3c3d	1463
p07gbar	2:e869ee8f3c3d	1464
p07gbar	2:e869ee8f3c3d	1465
p07gbar	2:e869ee8f3c3d	1466	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1467	/* Register an object to the directory */
p07gbar	2:e869ee8f3c3d	1468	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1469	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	1470	static
p07gbar	2:e869ee8f3c3d	1471	FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
p07gbar	2:e869ee8f3c3d	1472	FATFS_DIR dj / Target directory with object name to be created */
p07gbar	2:e869ee8f3c3d	1473	)
p07gbar	2:e869ee8f3c3d	1474	{
p07gbar	2:e869ee8f3c3d	1475	FRESULT res;
p07gbar	2:e869ee8f3c3d	1476	BYTE c, *dir;
p07gbar	2:e869ee8f3c3d	1477	#if _USE_LFN /* LFN configuration */
p07gbar	2:e869ee8f3c3d	1478	WORD n, ne, is;
p07gbar	2:e869ee8f3c3d	1479	BYTE sn[12], *fn, sum;
p07gbar	2:e869ee8f3c3d	1480	WCHAR *lfn;
p07gbar	2:e869ee8f3c3d	1481
p07gbar	2:e869ee8f3c3d	1482
p07gbar	2:e869ee8f3c3d	1483	fn = dj->fn; lfn = dj->lfn;
p07gbar	2:e869ee8f3c3d	1484	mem_cpy(sn, fn, 12);
p07gbar	2:e869ee8f3c3d	1485
p07gbar	2:e869ee8f3c3d	1486	if (_FS_RPATH && (sn[NS] & NS_DOT)) /* Cannot create dot entry */
p07gbar	2:e869ee8f3c3d	1487	return FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	1488
p07gbar	2:e869ee8f3c3d	1489	if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
p07gbar	2:e869ee8f3c3d	1490	fn[NS] = 0; dj->lfn = 0; /* Find only SFN */
p07gbar	2:e869ee8f3c3d	1491	for (n = 1; n < 100; n++) {
p07gbar	2:e869ee8f3c3d	1492	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
p07gbar	2:e869ee8f3c3d	1493	res = dir_find(dj); /* Check if the name collides with existing SFN */
p07gbar	2:e869ee8f3c3d	1494	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	1495	}
p07gbar	2:e869ee8f3c3d	1496	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
p07gbar	2:e869ee8f3c3d	1497	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
p07gbar	2:e869ee8f3c3d	1498	fn[NS] = sn[NS]; dj->lfn = lfn;
p07gbar	2:e869ee8f3c3d	1499	}
p07gbar	2:e869ee8f3c3d	1500
p07gbar	2:e869ee8f3c3d	1501	if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve an SFN + LFN entries. */
p07gbar	2:e869ee8f3c3d	1502	for (ne = 0; lfn[ne]; ne++) ;
p07gbar	2:e869ee8f3c3d	1503	ne = (ne + 25) / 13;
p07gbar	2:e869ee8f3c3d	1504	} else { /* Otherwise reserve only an SFN entry. */
p07gbar	2:e869ee8f3c3d	1505	ne = 1;
p07gbar	2:e869ee8f3c3d	1506	}
p07gbar	2:e869ee8f3c3d	1507
p07gbar	2:e869ee8f3c3d	1508	/* Reserve contiguous entries */
p07gbar	2:e869ee8f3c3d	1509	res = dir_sdi(dj, 0);
p07gbar	2:e869ee8f3c3d	1510	if (res != FR_OK) return res;
p07gbar	2:e869ee8f3c3d	1511	n = is = 0;
p07gbar	2:e869ee8f3c3d	1512	do {
p07gbar	2:e869ee8f3c3d	1513	res = move_window(dj->fs, dj->sect);
p07gbar	2:e869ee8f3c3d	1514	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	1515	c = dj->dir; / Check the entry status */
p07gbar	2:e869ee8f3c3d	1516	if (c == DDE \|\| c == 0) { /* Is it a blank entry? */
p07gbar	2:e869ee8f3c3d	1517	if (n == 0) is = dj->index; /* First index of the contiguous entry */
p07gbar	2:e869ee8f3c3d	1518	if (++n == ne) break; /* A contiguous entry that required count is found */
p07gbar	2:e869ee8f3c3d	1519	} else {
p07gbar	2:e869ee8f3c3d	1520	n = 0; /* Not a blank entry. Restart to search */
p07gbar	2:e869ee8f3c3d	1521	}
p07gbar	2:e869ee8f3c3d	1522	res = dir_next(dj, 1); /* Next entry with table stretch */
p07gbar	2:e869ee8f3c3d	1523	} while (res == FR_OK);
p07gbar	2:e869ee8f3c3d	1524
p07gbar	2:e869ee8f3c3d	1525	if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */
p07gbar	2:e869ee8f3c3d	1526	res = dir_sdi(dj, is);
p07gbar	2:e869ee8f3c3d	1527	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	1528	sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */
p07gbar	2:e869ee8f3c3d	1529	ne--;
p07gbar	2:e869ee8f3c3d	1530	do { /* Store LFN entries in bottom first */
p07gbar	2:e869ee8f3c3d	1531	res = move_window(dj->fs, dj->sect);
p07gbar	2:e869ee8f3c3d	1532	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	1533	fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
p07gbar	2:e869ee8f3c3d	1534	dj->fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	1535	res = dir_next(dj, 0); /* Next entry */
p07gbar	2:e869ee8f3c3d	1536	} while (res == FR_OK && --ne);
p07gbar	2:e869ee8f3c3d	1537	}
p07gbar	2:e869ee8f3c3d	1538	}
p07gbar	2:e869ee8f3c3d	1539
p07gbar	2:e869ee8f3c3d	1540	#else /* Non LFN configuration */
p07gbar	2:e869ee8f3c3d	1541	res = dir_sdi(dj, 0);
p07gbar	2:e869ee8f3c3d	1542	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	1543	do { /* Find a blank entry for the SFN */
p07gbar	2:e869ee8f3c3d	1544	res = move_window(dj->fs, dj->sect);
p07gbar	2:e869ee8f3c3d	1545	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	1546	c = *dj->dir;
p07gbar	2:e869ee8f3c3d	1547	if (c == DDE \|\| c == 0) break; /* Is it a blank entry? */
p07gbar	2:e869ee8f3c3d	1548	res = dir_next(dj, 1); /* Next entry with table stretch */
p07gbar	2:e869ee8f3c3d	1549	} while (res == FR_OK);
p07gbar	2:e869ee8f3c3d	1550	}
p07gbar	2:e869ee8f3c3d	1551	#endif
p07gbar	2:e869ee8f3c3d	1552
p07gbar	2:e869ee8f3c3d	1553	if (res == FR_OK) { /* Initialize the SFN entry */
p07gbar	2:e869ee8f3c3d	1554	res = move_window(dj->fs, dj->sect);
p07gbar	2:e869ee8f3c3d	1555	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	1556	dir = dj->dir;
p07gbar	2:e869ee8f3c3d	1557	mem_set(dir, 0, SZ_DIR); /* Clean the entry */
p07gbar	2:e869ee8f3c3d	1558	mem_cpy(dir, dj->fn, 11); /* Put SFN */
p07gbar	2:e869ee8f3c3d	1559	#if _USE_LFN
p07gbar	2:e869ee8f3c3d	1560	dir[DIR_NTres] = (dj->fn+NS) & (NS_BODY \| NS_EXT); / Put NT flag */
p07gbar	2:e869ee8f3c3d	1561	#endif
p07gbar	2:e869ee8f3c3d	1562	dj->fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	1563	}
p07gbar	2:e869ee8f3c3d	1564	}
p07gbar	2:e869ee8f3c3d	1565
p07gbar	2:e869ee8f3c3d	1566	return res;
p07gbar	2:e869ee8f3c3d	1567	}
p07gbar	2:e869ee8f3c3d	1568	#endif /* !_FS_READONLY */
p07gbar	2:e869ee8f3c3d	1569
p07gbar	2:e869ee8f3c3d	1570
p07gbar	2:e869ee8f3c3d	1571
p07gbar	2:e869ee8f3c3d	1572
p07gbar	2:e869ee8f3c3d	1573	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1574	/* Remove an object from the directory */
p07gbar	2:e869ee8f3c3d	1575	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1576	#if !_FS_READONLY && !_FS_MINIMIZE
p07gbar	2:e869ee8f3c3d	1577	static
p07gbar	2:e869ee8f3c3d	1578	FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
p07gbar	2:e869ee8f3c3d	1579	FATFS_DIR dj / Directory object pointing the entry to be removed */
p07gbar	2:e869ee8f3c3d	1580	)
p07gbar	2:e869ee8f3c3d	1581	{
p07gbar	2:e869ee8f3c3d	1582	FRESULT res;
p07gbar	2:e869ee8f3c3d	1583	#if _USE_LFN /* LFN configuration */
p07gbar	2:e869ee8f3c3d	1584	WORD i;
p07gbar	2:e869ee8f3c3d	1585
p07gbar	2:e869ee8f3c3d	1586	i = dj->index; /* SFN index */
p07gbar	2:e869ee8f3c3d	1587	res = dir_sdi(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */
p07gbar	2:e869ee8f3c3d	1588	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	1589	do {
p07gbar	2:e869ee8f3c3d	1590	res = move_window(dj->fs, dj->sect);
p07gbar	2:e869ee8f3c3d	1591	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	1592	dj->dir = DDE; / Mark the entry "deleted" */
p07gbar	2:e869ee8f3c3d	1593	dj->fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	1594	if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
p07gbar	2:e869ee8f3c3d	1595	res = dir_next(dj, 0); /* Next entry */
p07gbar	2:e869ee8f3c3d	1596	} while (res == FR_OK);
p07gbar	2:e869ee8f3c3d	1597	if (res == FR_NO_FILE) res = FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	1598	}
p07gbar	2:e869ee8f3c3d	1599
p07gbar	2:e869ee8f3c3d	1600	#else /* Non LFN configuration */
p07gbar	2:e869ee8f3c3d	1601	res = dir_sdi(dj, dj->index);
p07gbar	2:e869ee8f3c3d	1602	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	1603	res = move_window(dj->fs, dj->sect);
p07gbar	2:e869ee8f3c3d	1604	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	1605	dj->dir = DDE; / Mark the entry "deleted" */
p07gbar	2:e869ee8f3c3d	1606	dj->fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	1607	}
p07gbar	2:e869ee8f3c3d	1608	}
p07gbar	2:e869ee8f3c3d	1609	#endif
p07gbar	2:e869ee8f3c3d	1610
p07gbar	2:e869ee8f3c3d	1611	return res;
p07gbar	2:e869ee8f3c3d	1612	}
p07gbar	2:e869ee8f3c3d	1613	#endif /* !_FS_READONLY */
p07gbar	2:e869ee8f3c3d	1614
p07gbar	2:e869ee8f3c3d	1615
p07gbar	2:e869ee8f3c3d	1616
p07gbar	2:e869ee8f3c3d	1617
p07gbar	2:e869ee8f3c3d	1618	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1619	/* Pick a segment and create the object name in directory form */
p07gbar	2:e869ee8f3c3d	1620	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1621
p07gbar	2:e869ee8f3c3d	1622	static
p07gbar	2:e869ee8f3c3d	1623	FRESULT create_name (
p07gbar	2:e869ee8f3c3d	1624	FATFS_DIR dj, / Pointer to the directory object */
p07gbar	2:e869ee8f3c3d	1625	const TCHAR *path / Pointer to pointer to the segment in the path string */
p07gbar	2:e869ee8f3c3d	1626	)
p07gbar	2:e869ee8f3c3d	1627	{
p07gbar	2:e869ee8f3c3d	1628	#ifdef _EXCVT
p07gbar	2:e869ee8f3c3d	1629	static const BYTE excvt[] = _EXCVT; /* Upper conversion table for extended chars */
p07gbar	2:e869ee8f3c3d	1630	#endif
p07gbar	2:e869ee8f3c3d	1631
p07gbar	2:e869ee8f3c3d	1632	#if _USE_LFN /* LFN configuration */
p07gbar	2:e869ee8f3c3d	1633	BYTE b, cf;
p07gbar	2:e869ee8f3c3d	1634	WCHAR w, *lfn;
p07gbar	2:e869ee8f3c3d	1635	UINT i, ni, si, di;
p07gbar	2:e869ee8f3c3d	1636	const TCHAR *p;
p07gbar	2:e869ee8f3c3d	1637
p07gbar	2:e869ee8f3c3d	1638	/* Create LFN in Unicode */
p07gbar	2:e869ee8f3c3d	1639	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
p07gbar	2:e869ee8f3c3d	1640	lfn = dj->lfn;
p07gbar	2:e869ee8f3c3d	1641	si = di = 0;
p07gbar	2:e869ee8f3c3d	1642	for (;;) {
p07gbar	2:e869ee8f3c3d	1643	w = p[si++]; /* Get a character */
p07gbar	2:e869ee8f3c3d	1644	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
p07gbar	2:e869ee8f3c3d	1645	if (di >= _MAX_LFN) /* Reject too long name */
p07gbar	2:e869ee8f3c3d	1646	return FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	1647	#if !_LFN_UNICODE
p07gbar	2:e869ee8f3c3d	1648	w &= 0xFF;
p07gbar	2:e869ee8f3c3d	1649	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
p07gbar	2:e869ee8f3c3d	1650	b = (BYTE)p[si++]; /* Get 2nd byte */
p07gbar	2:e869ee8f3c3d	1651	if (!IsDBCS2(b))
p07gbar	2:e869ee8f3c3d	1652	return FR_INVALID_NAME; /* Reject invalid sequence */
p07gbar	2:e869ee8f3c3d	1653	w = (w << 8) + b; /* Create a DBC */
p07gbar	2:e869ee8f3c3d	1654	}
p07gbar	2:e869ee8f3c3d	1655	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
p07gbar	2:e869ee8f3c3d	1656	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
p07gbar	2:e869ee8f3c3d	1657	#endif
p07gbar	2:e869ee8f3c3d	1658	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal chars for LFN */
p07gbar	2:e869ee8f3c3d	1659	return FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	1660	lfn[di++] = w; /* Store the Unicode char */
p07gbar	2:e869ee8f3c3d	1661	}
p07gbar	2:e869ee8f3c3d	1662	path = &p[si]; / Return pointer to the next segment */
p07gbar	2:e869ee8f3c3d	1663	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
p07gbar	2:e869ee8f3c3d	1664	#if _FS_RPATH
p07gbar	2:e869ee8f3c3d	1665	if ((di == 1 && lfn[di-1] == '.') \|\| /* Is this a dot entry? */
p07gbar	2:e869ee8f3c3d	1666	(di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
p07gbar	2:e869ee8f3c3d	1667	lfn[di] = 0;
p07gbar	2:e869ee8f3c3d	1668	for (i = 0; i < 11; i++)
p07gbar	2:e869ee8f3c3d	1669	dj->fn[i] = (i < di) ? '.' : ' ';
p07gbar	2:e869ee8f3c3d	1670	dj->fn[i] = cf \| NS_DOT; /* This is a dot entry */
p07gbar	2:e869ee8f3c3d	1671	return FR_OK;
p07gbar	2:e869ee8f3c3d	1672	}
p07gbar	2:e869ee8f3c3d	1673	#endif
p07gbar	2:e869ee8f3c3d	1674	while (di) { /* Strip trailing spaces and dots */
p07gbar	2:e869ee8f3c3d	1675	w = lfn[di-1];
p07gbar	2:e869ee8f3c3d	1676	if (w != ' ' && w != '.') break;
p07gbar	2:e869ee8f3c3d	1677	di--;
p07gbar	2:e869ee8f3c3d	1678	}
p07gbar	2:e869ee8f3c3d	1679	if (!di) return FR_INVALID_NAME; /* Reject nul string */
p07gbar	2:e869ee8f3c3d	1680
p07gbar	2:e869ee8f3c3d	1681	lfn[di] = 0; /* LFN is created */
p07gbar	2:e869ee8f3c3d	1682
p07gbar	2:e869ee8f3c3d	1683	/* Create SFN in directory form */
p07gbar	2:e869ee8f3c3d	1684	mem_set(dj->fn, ' ', 11);
p07gbar	2:e869ee8f3c3d	1685	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
p07gbar	2:e869ee8f3c3d	1686	if (si) cf \|= NS_LOSS \| NS_LFN;
p07gbar	2:e869ee8f3c3d	1687	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
p07gbar	2:e869ee8f3c3d	1688
p07gbar	2:e869ee8f3c3d	1689	b = i = 0; ni = 8;
p07gbar	2:e869ee8f3c3d	1690	for (;;) {
p07gbar	2:e869ee8f3c3d	1691	w = lfn[si++]; /* Get an LFN char */
p07gbar	2:e869ee8f3c3d	1692	if (!w) break; /* Break on end of the LFN */
p07gbar	2:e869ee8f3c3d	1693	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
p07gbar	2:e869ee8f3c3d	1694	cf \|= NS_LOSS \| NS_LFN; continue;
p07gbar	2:e869ee8f3c3d	1695	}
p07gbar	2:e869ee8f3c3d	1696
p07gbar	2:e869ee8f3c3d	1697	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
p07gbar	2:e869ee8f3c3d	1698	if (ni == 11) { /* Long extension */
p07gbar	2:e869ee8f3c3d	1699	cf \|= NS_LOSS \| NS_LFN; break;
p07gbar	2:e869ee8f3c3d	1700	}
p07gbar	2:e869ee8f3c3d	1701	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
p07gbar	2:e869ee8f3c3d	1702	if (si > di) break; /* No extension */
p07gbar	2:e869ee8f3c3d	1703	si = di; i = 8; ni = 11; /* Enter extension section */
p07gbar	2:e869ee8f3c3d	1704	b <<= 2; continue;
p07gbar	2:e869ee8f3c3d	1705	}
p07gbar	2:e869ee8f3c3d	1706
p07gbar	2:e869ee8f3c3d	1707	if (w >= 0x80) { /* Non ASCII char */
p07gbar	2:e869ee8f3c3d	1708	#ifdef _EXCVT
p07gbar	2:e869ee8f3c3d	1709	w = ff_convert(w, 0); /* Unicode -> OEM code */
p07gbar	2:e869ee8f3c3d	1710	if (w) w = excvt[w - 0x80]; /* Convert extended char to upper (SBCS) */
p07gbar	2:e869ee8f3c3d	1711	#else
p07gbar	2:e869ee8f3c3d	1712	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
p07gbar	2:e869ee8f3c3d	1713	#endif
p07gbar	2:e869ee8f3c3d	1714	cf \|= NS_LFN; /* Force create LFN entry */
p07gbar	2:e869ee8f3c3d	1715	}
p07gbar	2:e869ee8f3c3d	1716
p07gbar	2:e869ee8f3c3d	1717	if (_DF1S && w >= 0x100) { /* Double byte char (always false on SBCS cfg) */
p07gbar	2:e869ee8f3c3d	1718	if (i >= ni - 1) {
p07gbar	2:e869ee8f3c3d	1719	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
p07gbar	2:e869ee8f3c3d	1720	}
p07gbar	2:e869ee8f3c3d	1721	dj->fn[i++] = (BYTE)(w >> 8);
p07gbar	2:e869ee8f3c3d	1722	} else { /* Single byte char */
p07gbar	2:e869ee8f3c3d	1723	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal chars for SFN */
p07gbar	2:e869ee8f3c3d	1724	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
p07gbar	2:e869ee8f3c3d	1725	} else {
p07gbar	2:e869ee8f3c3d	1726	if (IsUpper(w)) { /* ASCII large capital */
p07gbar	2:e869ee8f3c3d	1727	b \|= 2;
p07gbar	2:e869ee8f3c3d	1728	} else {
p07gbar	2:e869ee8f3c3d	1729	if (IsLower(w)) { /* ASCII small capital */
p07gbar	2:e869ee8f3c3d	1730	b \|= 1; w -= 0x20;
p07gbar	2:e869ee8f3c3d	1731	}
p07gbar	2:e869ee8f3c3d	1732	}
p07gbar	2:e869ee8f3c3d	1733	}
p07gbar	2:e869ee8f3c3d	1734	}
p07gbar	2:e869ee8f3c3d	1735	dj->fn[i++] = (BYTE)w;
p07gbar	2:e869ee8f3c3d	1736	}
p07gbar	2:e869ee8f3c3d	1737
p07gbar	2:e869ee8f3c3d	1738	if (dj->fn[0] == DDE) dj->fn[0] = NDDE; /* If the first char collides with deleted mark, replace it with 0x05 */
p07gbar	2:e869ee8f3c3d	1739
p07gbar	2:e869ee8f3c3d	1740	if (ni == 8) b <<= 2;
p07gbar	2:e869ee8f3c3d	1741	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
p07gbar	2:e869ee8f3c3d	1742	cf \|= NS_LFN;
p07gbar	2:e869ee8f3c3d	1743	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */
p07gbar	2:e869ee8f3c3d	1744	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
p07gbar	2:e869ee8f3c3d	1745	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
p07gbar	2:e869ee8f3c3d	1746	}
p07gbar	2:e869ee8f3c3d	1747
p07gbar	2:e869ee8f3c3d	1748	dj->fn[NS] = cf; /* SFN is created */
p07gbar	2:e869ee8f3c3d	1749
p07gbar	2:e869ee8f3c3d	1750	return FR_OK;
p07gbar	2:e869ee8f3c3d	1751
p07gbar	2:e869ee8f3c3d	1752
p07gbar	2:e869ee8f3c3d	1753	#else /* Non-LFN configuration */
p07gbar	2:e869ee8f3c3d	1754	BYTE b, c, d, *sfn;
p07gbar	2:e869ee8f3c3d	1755	UINT ni, si, i;
p07gbar	2:e869ee8f3c3d	1756	const char *p;
p07gbar	2:e869ee8f3c3d	1757
p07gbar	2:e869ee8f3c3d	1758	/* Create file name in directory form */
p07gbar	2:e869ee8f3c3d	1759	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
p07gbar	2:e869ee8f3c3d	1760	sfn = dj->fn;
p07gbar	2:e869ee8f3c3d	1761	mem_set(sfn, ' ', 11);
p07gbar	2:e869ee8f3c3d	1762	si = i = b = 0; ni = 8;
p07gbar	2:e869ee8f3c3d	1763	#if _FS_RPATH
p07gbar	2:e869ee8f3c3d	1764	if (p[si] == '.') { /* Is this a dot entry? */
p07gbar	2:e869ee8f3c3d	1765	for (;;) {
p07gbar	2:e869ee8f3c3d	1766	c = (BYTE)p[si++];
p07gbar	2:e869ee8f3c3d	1767	if (c != '.' \|\| si >= 3) break;
p07gbar	2:e869ee8f3c3d	1768	sfn[i++] = c;
p07gbar	2:e869ee8f3c3d	1769	}
p07gbar	2:e869ee8f3c3d	1770	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	1771	path = &p[si]; / Return pointer to the next segment */
p07gbar	2:e869ee8f3c3d	1772	sfn[NS] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
p07gbar	2:e869ee8f3c3d	1773	return FR_OK;
p07gbar	2:e869ee8f3c3d	1774	}
p07gbar	2:e869ee8f3c3d	1775	#endif
p07gbar	2:e869ee8f3c3d	1776	for (;;) {
p07gbar	2:e869ee8f3c3d	1777	c = (BYTE)p[si++];
p07gbar	2:e869ee8f3c3d	1778	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
p07gbar	2:e869ee8f3c3d	1779	if (c == '.' \|\| i >= ni) {
p07gbar	2:e869ee8f3c3d	1780	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	1781	i = 8; ni = 11;
p07gbar	2:e869ee8f3c3d	1782	b <<= 2; continue;
p07gbar	2:e869ee8f3c3d	1783	}
p07gbar	2:e869ee8f3c3d	1784	if (c >= 0x80) { /* Extended char? */
p07gbar	2:e869ee8f3c3d	1785	b \|= 3; /* Eliminate NT flag */
p07gbar	2:e869ee8f3c3d	1786	#ifdef _EXCVT
p07gbar	2:e869ee8f3c3d	1787	c = excvt[c-0x80]; /* Upper conversion (SBCS) */
p07gbar	2:e869ee8f3c3d	1788	#else
p07gbar	2:e869ee8f3c3d	1789	#if !_DF1S /* ASCII only cfg */
p07gbar	2:e869ee8f3c3d	1790	return FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	1791	#endif
p07gbar	2:e869ee8f3c3d	1792	#endif
p07gbar	2:e869ee8f3c3d	1793	}
p07gbar	2:e869ee8f3c3d	1794	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
p07gbar	2:e869ee8f3c3d	1795	d = (BYTE)p[si++]; /* Get 2nd byte */
p07gbar	2:e869ee8f3c3d	1796	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
p07gbar	2:e869ee8f3c3d	1797	return FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	1798	sfn[i++] = c;
p07gbar	2:e869ee8f3c3d	1799	sfn[i++] = d;
p07gbar	2:e869ee8f3c3d	1800	} else { /* Single byte code */
p07gbar	2:e869ee8f3c3d	1801	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
p07gbar	2:e869ee8f3c3d	1802	return FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	1803	if (IsUpper(c)) { /* ASCII large capital? */
p07gbar	2:e869ee8f3c3d	1804	b \|= 2;
p07gbar	2:e869ee8f3c3d	1805	} else {
p07gbar	2:e869ee8f3c3d	1806	if (IsLower(c)) { /* ASCII small capital? */
p07gbar	2:e869ee8f3c3d	1807	b \|= 1; c -= 0x20;
p07gbar	2:e869ee8f3c3d	1808	}
p07gbar	2:e869ee8f3c3d	1809	}
p07gbar	2:e869ee8f3c3d	1810	sfn[i++] = c;
p07gbar	2:e869ee8f3c3d	1811	}
p07gbar	2:e869ee8f3c3d	1812	}
p07gbar	2:e869ee8f3c3d	1813	path = &p[si]; / Return pointer to the next segment */
p07gbar	2:e869ee8f3c3d	1814	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
p07gbar	2:e869ee8f3c3d	1815
p07gbar	2:e869ee8f3c3d	1816	if (!i) return FR_INVALID_NAME; /* Reject nul string */
p07gbar	2:e869ee8f3c3d	1817	if (sfn[0] == DDE) sfn[0] = NDDE; /* When first char collides with DDE, replace it with 0x05 */
p07gbar	2:e869ee8f3c3d	1818
p07gbar	2:e869ee8f3c3d	1819	if (ni == 8) b <<= 2;
p07gbar	2:e869ee8f3c3d	1820	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
p07gbar	2:e869ee8f3c3d	1821	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
p07gbar	2:e869ee8f3c3d	1822
p07gbar	2:e869ee8f3c3d	1823	sfn[NS] = c; /* Store NT flag, File name is created */
p07gbar	2:e869ee8f3c3d	1824
p07gbar	2:e869ee8f3c3d	1825	return FR_OK;
p07gbar	2:e869ee8f3c3d	1826	#endif
p07gbar	2:e869ee8f3c3d	1827	}
p07gbar	2:e869ee8f3c3d	1828
p07gbar	2:e869ee8f3c3d	1829
p07gbar	2:e869ee8f3c3d	1830
p07gbar	2:e869ee8f3c3d	1831
p07gbar	2:e869ee8f3c3d	1832	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1833	/* Get file information from directory entry */
p07gbar	2:e869ee8f3c3d	1834	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1835	#if _FS_MINIMIZE <= 1
p07gbar	2:e869ee8f3c3d	1836	static
p07gbar	2:e869ee8f3c3d	1837	void get_fileinfo ( /* No return code */
p07gbar	2:e869ee8f3c3d	1838	FATFS_DIR dj, / Pointer to the directory object */
p07gbar	2:e869ee8f3c3d	1839	FILINFO fno / Pointer to the file information to be filled */
p07gbar	2:e869ee8f3c3d	1840	)
p07gbar	2:e869ee8f3c3d	1841	{
p07gbar	2:e869ee8f3c3d	1842	UINT i;
p07gbar	2:e869ee8f3c3d	1843	BYTE nt, *dir;
p07gbar	2:e869ee8f3c3d	1844	TCHAR *p, c;
p07gbar	2:e869ee8f3c3d	1845
p07gbar	2:e869ee8f3c3d	1846
p07gbar	2:e869ee8f3c3d	1847	p = fno->fname;
p07gbar	2:e869ee8f3c3d	1848	if (dj->sect) {
p07gbar	2:e869ee8f3c3d	1849	dir = dj->dir;
p07gbar	2:e869ee8f3c3d	1850	nt = dir[DIR_NTres]; /* NT flag */
p07gbar	2:e869ee8f3c3d	1851	for (i = 0; i < 8; i++) { /* Copy name body */
p07gbar	2:e869ee8f3c3d	1852	c = dir[i];
p07gbar	2:e869ee8f3c3d	1853	if (c == ' ') break;
p07gbar	2:e869ee8f3c3d	1854	if (c == NDDE) c = (TCHAR)DDE;
p07gbar	2:e869ee8f3c3d	1855	if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
p07gbar	2:e869ee8f3c3d	1856	#if _LFN_UNICODE
p07gbar	2:e869ee8f3c3d	1857	if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i+1]))
p07gbar	2:e869ee8f3c3d	1858	c = (c << 8) \| dir[++i];
p07gbar	2:e869ee8f3c3d	1859	c = ff_convert(c, 1);
p07gbar	2:e869ee8f3c3d	1860	if (!c) c = '?';
p07gbar	2:e869ee8f3c3d	1861	#endif
p07gbar	2:e869ee8f3c3d	1862	*p++ = c;
p07gbar	2:e869ee8f3c3d	1863	}
p07gbar	2:e869ee8f3c3d	1864	if (dir[8] != ' ') { /* Copy name extension */
p07gbar	2:e869ee8f3c3d	1865	*p++ = '.';
p07gbar	2:e869ee8f3c3d	1866	for (i = 8; i < 11; i++) {
p07gbar	2:e869ee8f3c3d	1867	c = dir[i];
p07gbar	2:e869ee8f3c3d	1868	if (c == ' ') break;
p07gbar	2:e869ee8f3c3d	1869	if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
p07gbar	2:e869ee8f3c3d	1870	#if _LFN_UNICODE
p07gbar	2:e869ee8f3c3d	1871	if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i+1]))
p07gbar	2:e869ee8f3c3d	1872	c = (c << 8) \| dir[++i];
p07gbar	2:e869ee8f3c3d	1873	c = ff_convert(c, 1);
p07gbar	2:e869ee8f3c3d	1874	if (!c) c = '?';
p07gbar	2:e869ee8f3c3d	1875	#endif
p07gbar	2:e869ee8f3c3d	1876	*p++ = c;
p07gbar	2:e869ee8f3c3d	1877	}
p07gbar	2:e869ee8f3c3d	1878	}
p07gbar	2:e869ee8f3c3d	1879	fno->fattrib = dir[DIR_Attr]; /* Attribute */
p07gbar	2:e869ee8f3c3d	1880	fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
p07gbar	2:e869ee8f3c3d	1881	fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
p07gbar	2:e869ee8f3c3d	1882	fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
p07gbar	2:e869ee8f3c3d	1883	}
p07gbar	2:e869ee8f3c3d	1884	p = 0; / Terminate SFN str by a \0 */
p07gbar	2:e869ee8f3c3d	1885
p07gbar	2:e869ee8f3c3d	1886	#if _USE_LFN
p07gbar	2:e869ee8f3c3d	1887	if (fno->lfname && fno->lfsize) {
p07gbar	2:e869ee8f3c3d	1888	TCHAR *tp = fno->lfname;
p07gbar	2:e869ee8f3c3d	1889	WCHAR w, *lfn;
p07gbar	2:e869ee8f3c3d	1890
p07gbar	2:e869ee8f3c3d	1891	i = 0;
p07gbar	2:e869ee8f3c3d	1892	if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
p07gbar	2:e869ee8f3c3d	1893	lfn = dj->lfn;
p07gbar	2:e869ee8f3c3d	1894	while ((w = lfn++) != 0) { / Get an LFN char */
p07gbar	2:e869ee8f3c3d	1895	#if !_LFN_UNICODE
p07gbar	2:e869ee8f3c3d	1896	w = ff_convert(w, 0); /* Unicode -> OEM conversion */
p07gbar	2:e869ee8f3c3d	1897	if (!w) { i = 0; break; } /* Could not convert, no LFN */
p07gbar	2:e869ee8f3c3d	1898	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
p07gbar	2:e869ee8f3c3d	1899	tp[i++] = (TCHAR)(w >> 8);
p07gbar	2:e869ee8f3c3d	1900	#endif
p07gbar	2:e869ee8f3c3d	1901	if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overflow, no LFN */
p07gbar	2:e869ee8f3c3d	1902	tp[i++] = (TCHAR)w;
p07gbar	2:e869ee8f3c3d	1903	}
p07gbar	2:e869ee8f3c3d	1904	}
p07gbar	2:e869ee8f3c3d	1905	tp[i] = 0; /* Terminate the LFN str by a \0 */
p07gbar	2:e869ee8f3c3d	1906	}
p07gbar	2:e869ee8f3c3d	1907	#endif
p07gbar	2:e869ee8f3c3d	1908	}
p07gbar	2:e869ee8f3c3d	1909	#endif /* _FS_MINIMIZE <= 1 */
p07gbar	2:e869ee8f3c3d	1910
p07gbar	2:e869ee8f3c3d	1911
p07gbar	2:e869ee8f3c3d	1912
p07gbar	2:e869ee8f3c3d	1913
p07gbar	2:e869ee8f3c3d	1914	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1915	/* Follow a file path */
p07gbar	2:e869ee8f3c3d	1916	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1917
p07gbar	2:e869ee8f3c3d	1918	static
p07gbar	2:e869ee8f3c3d	1919	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
p07gbar	2:e869ee8f3c3d	1920	FATFS_DIR dj, / Directory object to return last directory and found object */
p07gbar	2:e869ee8f3c3d	1921	const TCHAR path / Full-path string to find a file or directory */
p07gbar	2:e869ee8f3c3d	1922	)
p07gbar	2:e869ee8f3c3d	1923	{
p07gbar	2:e869ee8f3c3d	1924	FRESULT res;
p07gbar	2:e869ee8f3c3d	1925	BYTE *dir, ns;
p07gbar	2:e869ee8f3c3d	1926
p07gbar	2:e869ee8f3c3d	1927
p07gbar	2:e869ee8f3c3d	1928	#if _FS_RPATH
p07gbar	2:e869ee8f3c3d	1929	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
p07gbar	2:e869ee8f3c3d	1930	path++; dj->sclust = 0; /* Strip it and start from the root dir */
p07gbar	2:e869ee8f3c3d	1931	} else { /* No heading separator */
p07gbar	2:e869ee8f3c3d	1932	dj->sclust = dj->fs->cdir; /* Start from the current dir */
p07gbar	2:e869ee8f3c3d	1933	}
p07gbar	2:e869ee8f3c3d	1934	#else
p07gbar	2:e869ee8f3c3d	1935	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
p07gbar	2:e869ee8f3c3d	1936	path++;
p07gbar	2:e869ee8f3c3d	1937	dj->sclust = 0; /* Start from the root dir */
p07gbar	2:e869ee8f3c3d	1938	#endif
p07gbar	2:e869ee8f3c3d	1939
p07gbar	2:e869ee8f3c3d	1940	if ((UINT)path < ' ') { / Nul path means the start directory itself */
p07gbar	2:e869ee8f3c3d	1941	res = dir_sdi(dj, 0);
p07gbar	2:e869ee8f3c3d	1942	dj->dir = 0;
p07gbar	2:e869ee8f3c3d	1943
p07gbar	2:e869ee8f3c3d	1944	} else { /* Follow path */
p07gbar	2:e869ee8f3c3d	1945	for (;;) {
p07gbar	2:e869ee8f3c3d	1946	res = create_name(dj, &path); /* Get a segment */
p07gbar	2:e869ee8f3c3d	1947	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	1948	res = dir_find(dj); /* Find it */
p07gbar	2:e869ee8f3c3d	1949	ns = *(dj->fn+NS);
p07gbar	2:e869ee8f3c3d	1950	if (res != FR_OK) { /* Failed to find the object */
p07gbar	2:e869ee8f3c3d	1951	if (res != FR_NO_FILE) break; /* Abort if any hard error occured */
p07gbar	2:e869ee8f3c3d	1952	/* Object not found */
p07gbar	2:e869ee8f3c3d	1953	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exit */
p07gbar	2:e869ee8f3c3d	1954	dj->sclust = 0; dj->dir = 0; /* It is the root dir */
p07gbar	2:e869ee8f3c3d	1955	res = FR_OK;
p07gbar	2:e869ee8f3c3d	1956	if (!(ns & NS_LAST)) continue;
p07gbar	2:e869ee8f3c3d	1957	} else { /* Could not find the object */
p07gbar	2:e869ee8f3c3d	1958	if (!(ns & NS_LAST)) res = FR_NO_PATH;
p07gbar	2:e869ee8f3c3d	1959	}
p07gbar	2:e869ee8f3c3d	1960	break;
p07gbar	2:e869ee8f3c3d	1961	}
p07gbar	2:e869ee8f3c3d	1962	if (ns & NS_LAST) break; /* Last segment match. Function completed. */
p07gbar	2:e869ee8f3c3d	1963	dir = dj->dir; /* There is next segment. Follow the sub directory */
p07gbar	2:e869ee8f3c3d	1964	if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
p07gbar	2:e869ee8f3c3d	1965	res = FR_NO_PATH; break;
p07gbar	2:e869ee8f3c3d	1966	}
p07gbar	2:e869ee8f3c3d	1967	dj->sclust = LD_CLUST(dir);
p07gbar	2:e869ee8f3c3d	1968	}
p07gbar	2:e869ee8f3c3d	1969	}
p07gbar	2:e869ee8f3c3d	1970
p07gbar	2:e869ee8f3c3d	1971	return res;
p07gbar	2:e869ee8f3c3d	1972	}
p07gbar	2:e869ee8f3c3d	1973
p07gbar	2:e869ee8f3c3d	1974
p07gbar	2:e869ee8f3c3d	1975
p07gbar	2:e869ee8f3c3d	1976
p07gbar	2:e869ee8f3c3d	1977	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1978	/* Load a sector and check if it is an FAT Volume Boot Record */
p07gbar	2:e869ee8f3c3d	1979	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	1980
p07gbar	2:e869ee8f3c3d	1981	static
p07gbar	2:e869ee8f3c3d	1982	BYTE check_fs ( /* 0:FAT-VBR, 1:Valid BR but not FAT, 2:Not a BR, 3:Disk error */
p07gbar	2:e869ee8f3c3d	1983	FATFS fs, / File system object */
p07gbar	2:e869ee8f3c3d	1984	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
p07gbar	2:e869ee8f3c3d	1985	)
p07gbar	2:e869ee8f3c3d	1986	{
p07gbar	2:e869ee8f3c3d	1987	if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK) /* Load boot record */
p07gbar	2:e869ee8f3c3d	1988	return 3;
p07gbar	2:e869ee8f3c3d	1989	if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
p07gbar	2:e869ee8f3c3d	1990	return 2;
p07gbar	2:e869ee8f3c3d	1991
p07gbar	2:e869ee8f3c3d	1992	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
p07gbar	2:e869ee8f3c3d	1993	return 0;
p07gbar	2:e869ee8f3c3d	1994	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
p07gbar	2:e869ee8f3c3d	1995	return 0;
p07gbar	2:e869ee8f3c3d	1996
p07gbar	2:e869ee8f3c3d	1997	return 1;
p07gbar	2:e869ee8f3c3d	1998	}
p07gbar	2:e869ee8f3c3d	1999
p07gbar	2:e869ee8f3c3d	2000
p07gbar	2:e869ee8f3c3d	2001
p07gbar	2:e869ee8f3c3d	2002
p07gbar	2:e869ee8f3c3d	2003	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2004	/* Check if the file system object is valid or not */
p07gbar	2:e869ee8f3c3d	2005	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2006
p07gbar	2:e869ee8f3c3d	2007	static
p07gbar	2:e869ee8f3c3d	2008	FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occurred */
p07gbar	2:e869ee8f3c3d	2009	const TCHAR *path, / Pointer to pointer to the path name (drive number) */
p07gbar	2:e869ee8f3c3d	2010	FATFS *rfs, / Pointer to pointer to the found file system object */
p07gbar	2:e869ee8f3c3d	2011	BYTE chk_wp /* !=0: Check media write protection for write access */
p07gbar	2:e869ee8f3c3d	2012	)
p07gbar	2:e869ee8f3c3d	2013	{
p07gbar	2:e869ee8f3c3d	2014	BYTE fmt, b, pi, *tbl;
p07gbar	2:e869ee8f3c3d	2015	UINT vol;
p07gbar	2:e869ee8f3c3d	2016	DSTATUS stat;
p07gbar	2:e869ee8f3c3d	2017	DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
p07gbar	2:e869ee8f3c3d	2018	WORD nrsv;
p07gbar	2:e869ee8f3c3d	2019	const TCHAR p = path;
p07gbar	2:e869ee8f3c3d	2020	FATFS *fs;
p07gbar	2:e869ee8f3c3d	2021
p07gbar	2:e869ee8f3c3d	2022	/* Get logical drive number from the path name */
p07gbar	2:e869ee8f3c3d	2023	vol = p[0] - '0'; /* Is there a drive number? */
p07gbar	2:e869ee8f3c3d	2024	if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */
p07gbar	2:e869ee8f3c3d	2025	p += 2; path = p; / Return pointer to the path name */
p07gbar	2:e869ee8f3c3d	2026	} else { /* No drive number is given */
p07gbar	2:e869ee8f3c3d	2027	#if _FS_RPATH
p07gbar	2:e869ee8f3c3d	2028	vol = CurrVol; /* Use current drive */
p07gbar	2:e869ee8f3c3d	2029	#else
p07gbar	2:e869ee8f3c3d	2030	vol = 0; /* Use drive 0 */
p07gbar	2:e869ee8f3c3d	2031	#endif
p07gbar	2:e869ee8f3c3d	2032	}
p07gbar	2:e869ee8f3c3d	2033
p07gbar	2:e869ee8f3c3d	2034	/* Check if the file system object is valid or not */
p07gbar	2:e869ee8f3c3d	2035	if (vol >= _VOLUMES) /* Is the drive number valid? */
p07gbar	2:e869ee8f3c3d	2036	return FR_INVALID_DRIVE;
p07gbar	2:e869ee8f3c3d	2037	rfs = fs = FatFs[vol]; / Return pointer to the corresponding file system object */
p07gbar	2:e869ee8f3c3d	2038	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
p07gbar	2:e869ee8f3c3d	2039
p07gbar	2:e869ee8f3c3d	2040	ENTER_FF(fs); /* Lock file system */
p07gbar	2:e869ee8f3c3d	2041
p07gbar	2:e869ee8f3c3d	2042	if (fs->fs_type) { /* If the logical drive has been mounted */
p07gbar	2:e869ee8f3c3d	2043	stat = disk_status(fs->drv);
p07gbar	2:e869ee8f3c3d	2044	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */
p07gbar	2:e869ee8f3c3d	2045	if (!_FS_READONLY && chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */
p07gbar	2:e869ee8f3c3d	2046	return FR_WRITE_PROTECTED;
p07gbar	2:e869ee8f3c3d	2047	return FR_OK; /* The file system object is valid */
p07gbar	2:e869ee8f3c3d	2048	}
p07gbar	2:e869ee8f3c3d	2049	}
p07gbar	2:e869ee8f3c3d	2050
p07gbar	2:e869ee8f3c3d	2051	/* The file system object is not valid. */
p07gbar	2:e869ee8f3c3d	2052	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
p07gbar	2:e869ee8f3c3d	2053
p07gbar	2:e869ee8f3c3d	2054	fs->fs_type = 0; /* Clear the file system object */
p07gbar	2:e869ee8f3c3d	2055	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
p07gbar	2:e869ee8f3c3d	2056	stat = disk_initialize(fs->drv); /* Initialize low level disk I/O layer */
p07gbar	2:e869ee8f3c3d	2057	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
p07gbar	2:e869ee8f3c3d	2058	return FR_NOT_READY; /* Failed to initialize due to no media or hard error */
p07gbar	2:e869ee8f3c3d	2059	if (!_FS_READONLY && chk_wp && (stat & STA_PROTECT)) /* Check disk write protection if needed */
p07gbar	2:e869ee8f3c3d	2060	return FR_WRITE_PROTECTED;
p07gbar	2:e869ee8f3c3d	2061	#if _MAX_SS != 512 /* Get disk sector size (variable sector size cfg only) */
p07gbar	2:e869ee8f3c3d	2062	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
p07gbar	2:e869ee8f3c3d	2063	return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	2064	#endif
p07gbar	2:e869ee8f3c3d	2065	/* Search FAT partition on the drive. Supports only generic partitionings, FDISK and SFD. */
p07gbar	2:e869ee8f3c3d	2066	fmt = check_fs(fs, bsect = 0); /* Load sector 0 and check if it is an FAT-VBR (in SFD) */
p07gbar	2:e869ee8f3c3d	2067	if (LD2PT(vol) && !fmt) fmt = 1; /* Force non-SFD if the volume is forced partition */
p07gbar	2:e869ee8f3c3d	2068	if (fmt == 1) { /* Not an FAT-VBR, the physical drive can be partitioned */
p07gbar	2:e869ee8f3c3d	2069	/* Check the partition listed in the partition table */
p07gbar	2:e869ee8f3c3d	2070	pi = LD2PT(vol);
p07gbar	2:e869ee8f3c3d	2071	if (pi) pi--;
p07gbar	2:e869ee8f3c3d	2072	tbl = &fs->win[MBR_Table + pi * SZ_PTE];/* Partition table */
p07gbar	2:e869ee8f3c3d	2073	if (tbl[4]) { /* Is the partition existing? */
p07gbar	2:e869ee8f3c3d	2074	bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
p07gbar	2:e869ee8f3c3d	2075	fmt = check_fs(fs, bsect); /* Check the partition */
p07gbar	2:e869ee8f3c3d	2076	}
p07gbar	2:e869ee8f3c3d	2077	}
p07gbar	2:e869ee8f3c3d	2078	if (fmt == 3) return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	2079	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
p07gbar	2:e869ee8f3c3d	2080
p07gbar	2:e869ee8f3c3d	2081	/* An FAT volume is found. Following code initializes the file system object */
p07gbar	2:e869ee8f3c3d	2082
p07gbar	2:e869ee8f3c3d	2083	if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
p07gbar	2:e869ee8f3c3d	2084	return FR_NO_FILESYSTEM;
p07gbar	2:e869ee8f3c3d	2085
p07gbar	2:e869ee8f3c3d	2086	fasize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */
p07gbar	2:e869ee8f3c3d	2087	if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32);
p07gbar	2:e869ee8f3c3d	2088	fs->fsize = fasize;
p07gbar	2:e869ee8f3c3d	2089
p07gbar	2:e869ee8f3c3d	2090	fs->n_fats = b = fs->win[BPB_NumFATs]; /* Number of FAT copies */
p07gbar	2:e869ee8f3c3d	2091	if (b != 1 && b != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
p07gbar	2:e869ee8f3c3d	2092	fasize = b; / Number of sectors for FAT area */
p07gbar	2:e869ee8f3c3d	2093
p07gbar	2:e869ee8f3c3d	2094	fs->csize = b = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
p07gbar	2:e869ee8f3c3d	2095	if (!b \|\| (b & (b - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
p07gbar	2:e869ee8f3c3d	2096
p07gbar	2:e869ee8f3c3d	2097	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Number of root directory entries */
p07gbar	2:e869ee8f3c3d	2098	if (fs->n_rootdir % (SS(fs) / SZ_DIR)) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be sector aligned) */
p07gbar	2:e869ee8f3c3d	2099
p07gbar	2:e869ee8f3c3d	2100	tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */
p07gbar	2:e869ee8f3c3d	2101	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
p07gbar	2:e869ee8f3c3d	2102
p07gbar	2:e869ee8f3c3d	2103	nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt); /* Number of reserved sectors */
p07gbar	2:e869ee8f3c3d	2104	if (!nrsv) return FR_NO_FILESYSTEM; /* (BPB_RsvdSecCnt must not be 0) */
p07gbar	2:e869ee8f3c3d	2105
p07gbar	2:e869ee8f3c3d	2106	/* Determine the FAT sub type */
p07gbar	2:e869ee8f3c3d	2107	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR); /* RSV+FAT+FATFS_DIR */
p07gbar	2:e869ee8f3c3d	2108	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
p07gbar	2:e869ee8f3c3d	2109	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
p07gbar	2:e869ee8f3c3d	2110	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
p07gbar	2:e869ee8f3c3d	2111	fmt = FS_FAT12;
p07gbar	2:e869ee8f3c3d	2112	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
p07gbar	2:e869ee8f3c3d	2113	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
p07gbar	2:e869ee8f3c3d	2114
p07gbar	2:e869ee8f3c3d	2115	/* Boundaries and Limits */
p07gbar	2:e869ee8f3c3d	2116	fs->n_fatent = nclst + 2; /* Number of FAT entries */
p07gbar	2:e869ee8f3c3d	2117	fs->database = bsect + sysect; /* Data start sector */
p07gbar	2:e869ee8f3c3d	2118	fs->fatbase = bsect + nrsv; /* FAT start sector */
p07gbar	2:e869ee8f3c3d	2119	if (fmt == FS_FAT32) {
p07gbar	2:e869ee8f3c3d	2120	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
p07gbar	2:e869ee8f3c3d	2121	fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
p07gbar	2:e869ee8f3c3d	2122	szbfat = fs->n_fatent * 4; /* (Required FAT size) */
p07gbar	2:e869ee8f3c3d	2123	} else {
p07gbar	2:e869ee8f3c3d	2124	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
p07gbar	2:e869ee8f3c3d	2125	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
p07gbar	2:e869ee8f3c3d	2126	szbfat = (fmt == FS_FAT16) ? /* (Required FAT size) */
p07gbar	2:e869ee8f3c3d	2127	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
p07gbar	2:e869ee8f3c3d	2128	}
p07gbar	2:e869ee8f3c3d	2129	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than required) */
p07gbar	2:e869ee8f3c3d	2130	return FR_NO_FILESYSTEM;
p07gbar	2:e869ee8f3c3d	2131
p07gbar	2:e869ee8f3c3d	2132	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	2133	/* Initialize cluster allocation information */
p07gbar	2:e869ee8f3c3d	2134	fs->free_clust = 0xFFFFFFFF;
p07gbar	2:e869ee8f3c3d	2135	fs->last_clust = 0;
p07gbar	2:e869ee8f3c3d	2136
p07gbar	2:e869ee8f3c3d	2137	/* Get fsinfo if available */
p07gbar	2:e869ee8f3c3d	2138	if (fmt == FS_FAT32) {
p07gbar	2:e869ee8f3c3d	2139	fs->fsi_flag = 0;
p07gbar	2:e869ee8f3c3d	2140	fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
p07gbar	2:e869ee8f3c3d	2141	if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK &&
p07gbar	2:e869ee8f3c3d	2142	LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
p07gbar	2:e869ee8f3c3d	2143	LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
p07gbar	2:e869ee8f3c3d	2144	LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
p07gbar	2:e869ee8f3c3d	2145	fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
p07gbar	2:e869ee8f3c3d	2146	fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
p07gbar	2:e869ee8f3c3d	2147	}
p07gbar	2:e869ee8f3c3d	2148	}
p07gbar	2:e869ee8f3c3d	2149	#endif
p07gbar	2:e869ee8f3c3d	2150	fs->fs_type = fmt; /* FAT sub-type */
p07gbar	2:e869ee8f3c3d	2151	fs->id = ++Fsid; /* File system mount ID */
p07gbar	2:e869ee8f3c3d	2152	fs->winsect = 0; /* Invalidate sector cache */
p07gbar	2:e869ee8f3c3d	2153	fs->wflag = 0;
p07gbar	2:e869ee8f3c3d	2154	#if _FS_RPATH
p07gbar	2:e869ee8f3c3d	2155	fs->cdir = 0; /* Current directory (root dir) */
p07gbar	2:e869ee8f3c3d	2156	#endif
p07gbar	2:e869ee8f3c3d	2157	#if _FS_SHARE /* Clear file lock semaphores */
p07gbar	2:e869ee8f3c3d	2158	clear_lock(fs);
p07gbar	2:e869ee8f3c3d	2159	#endif
p07gbar	2:e869ee8f3c3d	2160
p07gbar	2:e869ee8f3c3d	2161	return FR_OK;
p07gbar	2:e869ee8f3c3d	2162	}
p07gbar	2:e869ee8f3c3d	2163
p07gbar	2:e869ee8f3c3d	2164
p07gbar	2:e869ee8f3c3d	2165
p07gbar	2:e869ee8f3c3d	2166
p07gbar	2:e869ee8f3c3d	2167	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2168	/* Check if the file/dir object is valid or not */
p07gbar	2:e869ee8f3c3d	2169	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2170
p07gbar	2:e869ee8f3c3d	2171	static
p07gbar	2:e869ee8f3c3d	2172	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
p07gbar	2:e869ee8f3c3d	2173	FATFS fs, / Pointer to the file system object */
p07gbar	2:e869ee8f3c3d	2174	WORD id /* Member id of the target object to be checked */
p07gbar	2:e869ee8f3c3d	2175	)
p07gbar	2:e869ee8f3c3d	2176	{
p07gbar	2:e869ee8f3c3d	2177	if (!fs \|\| !fs->fs_type \|\| fs->id != id)
p07gbar	2:e869ee8f3c3d	2178	return FR_INVALID_OBJECT;
p07gbar	2:e869ee8f3c3d	2179
p07gbar	2:e869ee8f3c3d	2180	ENTER_FF(fs); /* Lock file system */
p07gbar	2:e869ee8f3c3d	2181
p07gbar	2:e869ee8f3c3d	2182	if (disk_status(fs->drv) & STA_NOINIT)
p07gbar	2:e869ee8f3c3d	2183	return FR_NOT_READY;
p07gbar	2:e869ee8f3c3d	2184
p07gbar	2:e869ee8f3c3d	2185	return FR_OK;
p07gbar	2:e869ee8f3c3d	2186	}
p07gbar	2:e869ee8f3c3d	2187
p07gbar	2:e869ee8f3c3d	2188
p07gbar	2:e869ee8f3c3d	2189
p07gbar	2:e869ee8f3c3d	2190
p07gbar	2:e869ee8f3c3d	2191	/*--------------------------------------------------------------------------
p07gbar	2:e869ee8f3c3d	2192
p07gbar	2:e869ee8f3c3d	2193	Public Functions
p07gbar	2:e869ee8f3c3d	2194
p07gbar	2:e869ee8f3c3d	2195	--------------------------------------------------------------------------*/
p07gbar	2:e869ee8f3c3d	2196
p07gbar	2:e869ee8f3c3d	2197
p07gbar	2:e869ee8f3c3d	2198
p07gbar	2:e869ee8f3c3d	2199	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2200	/* Mount/Unmount a Logical Drive */
p07gbar	2:e869ee8f3c3d	2201	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2202
p07gbar	2:e869ee8f3c3d	2203	FRESULT f_mount (
p07gbar	2:e869ee8f3c3d	2204	BYTE vol, /* Logical drive number to be mounted/unmounted */
p07gbar	2:e869ee8f3c3d	2205	FATFS fs / Pointer to new file system object (NULL for unmount)*/
p07gbar	2:e869ee8f3c3d	2206	)
p07gbar	2:e869ee8f3c3d	2207	{
p07gbar	2:e869ee8f3c3d	2208	FATFS *rfs;
p07gbar	2:e869ee8f3c3d	2209
p07gbar	2:e869ee8f3c3d	2210
p07gbar	2:e869ee8f3c3d	2211	if (vol >= _VOLUMES) /* Check if the drive number is valid */
p07gbar	2:e869ee8f3c3d	2212	return FR_INVALID_DRIVE;
p07gbar	2:e869ee8f3c3d	2213	rfs = FatFs[vol]; /* Get current fs object */
p07gbar	2:e869ee8f3c3d	2214
p07gbar	2:e869ee8f3c3d	2215	if (rfs) {
p07gbar	2:e869ee8f3c3d	2216	#if _FS_SHARE
p07gbar	2:e869ee8f3c3d	2217	clear_lock(rfs);
p07gbar	2:e869ee8f3c3d	2218	#endif
p07gbar	2:e869ee8f3c3d	2219	#if _FS_REENTRANT /* Discard sync object of the current volume */
p07gbar	2:e869ee8f3c3d	2220	if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	2221	#endif
p07gbar	2:e869ee8f3c3d	2222	rfs->fs_type = 0; /* Clear old fs object */
p07gbar	2:e869ee8f3c3d	2223	}
p07gbar	2:e869ee8f3c3d	2224
p07gbar	2:e869ee8f3c3d	2225	if (fs) {
p07gbar	2:e869ee8f3c3d	2226	fs->fs_type = 0; /* Clear new fs object */
p07gbar	2:e869ee8f3c3d	2227	#if _FS_REENTRANT /* Create sync object for the new volume */
p07gbar	2:e869ee8f3c3d	2228	if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	2229	#endif
p07gbar	2:e869ee8f3c3d	2230	}
p07gbar	2:e869ee8f3c3d	2231	FatFs[vol] = fs; /* Register new fs object */
p07gbar	2:e869ee8f3c3d	2232
p07gbar	2:e869ee8f3c3d	2233	return FR_OK;
p07gbar	2:e869ee8f3c3d	2234	}
p07gbar	2:e869ee8f3c3d	2235
p07gbar	2:e869ee8f3c3d	2236
p07gbar	2:e869ee8f3c3d	2237
p07gbar	2:e869ee8f3c3d	2238
p07gbar	2:e869ee8f3c3d	2239	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2240	/* Open or Create a File */
p07gbar	2:e869ee8f3c3d	2241	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2242
p07gbar	2:e869ee8f3c3d	2243	FRESULT f_open (
p07gbar	2:e869ee8f3c3d	2244	FIL fp, / Pointer to the blank file object */
p07gbar	2:e869ee8f3c3d	2245	const TCHAR path, / Pointer to the file name */
p07gbar	2:e869ee8f3c3d	2246	BYTE mode /* Access mode and file open mode flags */
p07gbar	2:e869ee8f3c3d	2247	)
p07gbar	2:e869ee8f3c3d	2248	{
p07gbar	2:e869ee8f3c3d	2249	FRESULT res;
p07gbar	2:e869ee8f3c3d	2250	FATFS_DIR dj;
p07gbar	2:e869ee8f3c3d	2251	BYTE *dir;
p07gbar	2:e869ee8f3c3d	2252	DEF_NAMEBUF;
p07gbar	2:e869ee8f3c3d	2253
p07gbar	2:e869ee8f3c3d	2254
p07gbar	2:e869ee8f3c3d	2255	fp->fs = 0; /* Clear file object */
p07gbar	2:e869ee8f3c3d	2256
p07gbar	2:e869ee8f3c3d	2257	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	2258	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
p07gbar	2:e869ee8f3c3d	2259	res = chk_mounted(&path, &dj.fs, (BYTE)(mode & ~FA_READ));
p07gbar	2:e869ee8f3c3d	2260	#else
p07gbar	2:e869ee8f3c3d	2261	mode &= FA_READ;
p07gbar	2:e869ee8f3c3d	2262	res = chk_mounted(&path, &dj.fs, 0);
p07gbar	2:e869ee8f3c3d	2263	#endif
p07gbar	2:e869ee8f3c3d	2264	INIT_BUF(dj);
p07gbar	2:e869ee8f3c3d	2265	if (res == FR_OK)
p07gbar	2:e869ee8f3c3d	2266	res = follow_path(&dj, path); /* Follow the file path */
p07gbar	2:e869ee8f3c3d	2267	dir = dj.dir;
p07gbar	2:e869ee8f3c3d	2268
p07gbar	2:e869ee8f3c3d	2269	#if !_FS_READONLY /* R/W configuration */
p07gbar	2:e869ee8f3c3d	2270	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	2271	if (!dir) /* Current dir itself */
p07gbar	2:e869ee8f3c3d	2272	res = FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	2273	#if _FS_SHARE
p07gbar	2:e869ee8f3c3d	2274	else
p07gbar	2:e869ee8f3c3d	2275	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
p07gbar	2:e869ee8f3c3d	2276	#endif
p07gbar	2:e869ee8f3c3d	2277	}
p07gbar	2:e869ee8f3c3d	2278	/* Create or Open a file */
p07gbar	2:e869ee8f3c3d	2279	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
p07gbar	2:e869ee8f3c3d	2280	DWORD dw, cl;
p07gbar	2:e869ee8f3c3d	2281
p07gbar	2:e869ee8f3c3d	2282	if (res != FR_OK) { /* No file, create new */
p07gbar	2:e869ee8f3c3d	2283	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
p07gbar	2:e869ee8f3c3d	2284	#if _FS_SHARE
p07gbar	2:e869ee8f3c3d	2285	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
p07gbar	2:e869ee8f3c3d	2286	#else
p07gbar	2:e869ee8f3c3d	2287	res = dir_register(&dj);
p07gbar	2:e869ee8f3c3d	2288	#endif
p07gbar	2:e869ee8f3c3d	2289	mode \|= FA_CREATE_ALWAYS; /* File is created */
p07gbar	2:e869ee8f3c3d	2290	dir = dj.dir; /* New entry */
p07gbar	2:e869ee8f3c3d	2291	}
p07gbar	2:e869ee8f3c3d	2292	else { /* Any object is already existing */
p07gbar	2:e869ee8f3c3d	2293	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or FATFS_DIR) */
p07gbar	2:e869ee8f3c3d	2294	res = FR_DENIED;
p07gbar	2:e869ee8f3c3d	2295	} else {
p07gbar	2:e869ee8f3c3d	2296	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
p07gbar	2:e869ee8f3c3d	2297	res = FR_EXIST;
p07gbar	2:e869ee8f3c3d	2298	}
p07gbar	2:e869ee8f3c3d	2299	}
p07gbar	2:e869ee8f3c3d	2300	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
p07gbar	2:e869ee8f3c3d	2301	dw = get_fattime(); /* Created time */
p07gbar	2:e869ee8f3c3d	2302	ST_DWORD(dir+DIR_CrtTime, dw);
p07gbar	2:e869ee8f3c3d	2303	dir[DIR_Attr] = 0; /* Reset attribute */
p07gbar	2:e869ee8f3c3d	2304	ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
p07gbar	2:e869ee8f3c3d	2305	cl = LD_CLUST(dir); /* Get start cluster */
p07gbar	2:e869ee8f3c3d	2306	ST_CLUST(dir, 0); /* cluster = 0 */
p07gbar	2:e869ee8f3c3d	2307	dj.fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	2308	if (cl) { /* Remove the cluster chain if exist */
p07gbar	2:e869ee8f3c3d	2309	dw = dj.fs->winsect;
p07gbar	2:e869ee8f3c3d	2310	res = remove_chain(dj.fs, cl);
p07gbar	2:e869ee8f3c3d	2311	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	2312	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
p07gbar	2:e869ee8f3c3d	2313	res = move_window(dj.fs, dw);
p07gbar	2:e869ee8f3c3d	2314	}
p07gbar	2:e869ee8f3c3d	2315	}
p07gbar	2:e869ee8f3c3d	2316	}
p07gbar	2:e869ee8f3c3d	2317	}
p07gbar	2:e869ee8f3c3d	2318	else { /* Open an existing file */
p07gbar	2:e869ee8f3c3d	2319	if (res == FR_OK) { /* Follow succeeded */
p07gbar	2:e869ee8f3c3d	2320	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
p07gbar	2:e869ee8f3c3d	2321	res = FR_NO_FILE;
p07gbar	2:e869ee8f3c3d	2322	} else {
p07gbar	2:e869ee8f3c3d	2323	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
p07gbar	2:e869ee8f3c3d	2324	res = FR_DENIED;
p07gbar	2:e869ee8f3c3d	2325	}
p07gbar	2:e869ee8f3c3d	2326	}
p07gbar	2:e869ee8f3c3d	2327	}
p07gbar	2:e869ee8f3c3d	2328	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	2329	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
p07gbar	2:e869ee8f3c3d	2330	mode \|= FA__WRITTEN;
p07gbar	2:e869ee8f3c3d	2331	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
p07gbar	2:e869ee8f3c3d	2332	fp->dir_ptr = dir;
p07gbar	2:e869ee8f3c3d	2333	#if _FS_SHARE
p07gbar	2:e869ee8f3c3d	2334	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
p07gbar	2:e869ee8f3c3d	2335	if (!fp->lockid) res = FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	2336	#endif
p07gbar	2:e869ee8f3c3d	2337	}
p07gbar	2:e869ee8f3c3d	2338
p07gbar	2:e869ee8f3c3d	2339	#else /* R/O configuration */
p07gbar	2:e869ee8f3c3d	2340	if (res == FR_OK) { /* Follow succeeded */
p07gbar	2:e869ee8f3c3d	2341	if (!dir) { /* Current dir itself */
p07gbar	2:e869ee8f3c3d	2342	res = FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	2343	} else {
p07gbar	2:e869ee8f3c3d	2344	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
p07gbar	2:e869ee8f3c3d	2345	res = FR_NO_FILE;
p07gbar	2:e869ee8f3c3d	2346	}
p07gbar	2:e869ee8f3c3d	2347	}
p07gbar	2:e869ee8f3c3d	2348	#endif
p07gbar	2:e869ee8f3c3d	2349	FREE_BUF();
p07gbar	2:e869ee8f3c3d	2350
p07gbar	2:e869ee8f3c3d	2351	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	2352	fp->flag = mode; /* File access mode */
p07gbar	2:e869ee8f3c3d	2353	fp->sclust = LD_CLUST(dir); /* File start cluster */
p07gbar	2:e869ee8f3c3d	2354	fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
p07gbar	2:e869ee8f3c3d	2355	fp->fptr = 0; /* File pointer */
p07gbar	2:e869ee8f3c3d	2356	fp->dsect = 0;
p07gbar	2:e869ee8f3c3d	2357	#if _USE_FASTSEEK
p07gbar	2:e869ee8f3c3d	2358	fp->cltbl = 0; /* Normal seek mode */
p07gbar	2:e869ee8f3c3d	2359	#endif
p07gbar	2:e869ee8f3c3d	2360	fp->fs = dj.fs; fp->id = dj.fs->id; /* Validate file object */
p07gbar	2:e869ee8f3c3d	2361	}
p07gbar	2:e869ee8f3c3d	2362
p07gbar	2:e869ee8f3c3d	2363	LEAVE_FF(dj.fs, res);
p07gbar	2:e869ee8f3c3d	2364	}
p07gbar	2:e869ee8f3c3d	2365
p07gbar	2:e869ee8f3c3d	2366
p07gbar	2:e869ee8f3c3d	2367
p07gbar	2:e869ee8f3c3d	2368
p07gbar	2:e869ee8f3c3d	2369	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2370	/* Read File */
p07gbar	2:e869ee8f3c3d	2371	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2372
p07gbar	2:e869ee8f3c3d	2373	FRESULT f_read (
p07gbar	2:e869ee8f3c3d	2374	FIL fp, / Pointer to the file object */
p07gbar	2:e869ee8f3c3d	2375	void buff, / Pointer to data buffer */
p07gbar	2:e869ee8f3c3d	2376	UINT btr, /* Number of bytes to read */
p07gbar	2:e869ee8f3c3d	2377	UINT br / Pointer to number of bytes read */
p07gbar	2:e869ee8f3c3d	2378	)
p07gbar	2:e869ee8f3c3d	2379	{
p07gbar	2:e869ee8f3c3d	2380	FRESULT res;
p07gbar	2:e869ee8f3c3d	2381	DWORD clst, sect, remain;
p07gbar	2:e869ee8f3c3d	2382	UINT rcnt, cc;
p07gbar	2:e869ee8f3c3d	2383	BYTE csect, rbuff = (BYTE)buff;
p07gbar	2:e869ee8f3c3d	2384
p07gbar	2:e869ee8f3c3d	2385
p07gbar	2:e869ee8f3c3d	2386	br = 0; / Initialize byte counter */
p07gbar	2:e869ee8f3c3d	2387
p07gbar	2:e869ee8f3c3d	2388	res = validate(fp->fs, fp->id); /* Check validity */
p07gbar	2:e869ee8f3c3d	2389	if (res != FR_OK) LEAVE_FF(fp->fs, res);
p07gbar	2:e869ee8f3c3d	2390	if (fp->flag & FA__ERROR) /* Aborted file? */
p07gbar	2:e869ee8f3c3d	2391	LEAVE_FF(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	2392	if (!(fp->flag & FA_READ)) /* Check access mode */
p07gbar	2:e869ee8f3c3d	2393	LEAVE_FF(fp->fs, FR_DENIED);
p07gbar	2:e869ee8f3c3d	2394	remain = fp->fsize - fp->fptr;
p07gbar	2:e869ee8f3c3d	2395	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
p07gbar	2:e869ee8f3c3d	2396
p07gbar	2:e869ee8f3c3d	2397	for ( ; btr; /* Repeat until all data read */
p07gbar	2:e869ee8f3c3d	2398	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
p07gbar	2:e869ee8f3c3d	2399	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
p07gbar	2:e869ee8f3c3d	2400	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
p07gbar	2:e869ee8f3c3d	2401	if (!csect) { /* On the cluster boundary? */
p07gbar	2:e869ee8f3c3d	2402	if (fp->fptr == 0) { /* On the top of the file? */
p07gbar	2:e869ee8f3c3d	2403	clst = fp->sclust; /* Follow from the origin */
p07gbar	2:e869ee8f3c3d	2404	} else { /* Middle or end of the file */
p07gbar	2:e869ee8f3c3d	2405	#if _USE_FASTSEEK
p07gbar	2:e869ee8f3c3d	2406	if (fp->cltbl)
p07gbar	2:e869ee8f3c3d	2407	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
p07gbar	2:e869ee8f3c3d	2408	else
p07gbar	2:e869ee8f3c3d	2409	#endif
p07gbar	2:e869ee8f3c3d	2410	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
p07gbar	2:e869ee8f3c3d	2411	}
p07gbar	2:e869ee8f3c3d	2412	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	2413	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2414	fp->clust = clst; /* Update current cluster */
p07gbar	2:e869ee8f3c3d	2415	}
p07gbar	2:e869ee8f3c3d	2416	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
p07gbar	2:e869ee8f3c3d	2417	if (!sect) ABORT(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	2418	sect += csect;
p07gbar	2:e869ee8f3c3d	2419	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
p07gbar	2:e869ee8f3c3d	2420	if (cc) { /* Read maximum contiguous sectors directly */
p07gbar	2:e869ee8f3c3d	2421	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
p07gbar	2:e869ee8f3c3d	2422	cc = fp->fs->csize - csect;
p07gbar	2:e869ee8f3c3d	2423	if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK)
p07gbar	2:e869ee8f3c3d	2424	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2425	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
p07gbar	2:e869ee8f3c3d	2426	#if _FS_TINY
p07gbar	2:e869ee8f3c3d	2427	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
p07gbar	2:e869ee8f3c3d	2428	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
p07gbar	2:e869ee8f3c3d	2429	#else
p07gbar	2:e869ee8f3c3d	2430	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
p07gbar	2:e869ee8f3c3d	2431	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
p07gbar	2:e869ee8f3c3d	2432	#endif
p07gbar	2:e869ee8f3c3d	2433	#endif
p07gbar	2:e869ee8f3c3d	2434	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
p07gbar	2:e869ee8f3c3d	2435	continue;
p07gbar	2:e869ee8f3c3d	2436	}
p07gbar	2:e869ee8f3c3d	2437	#if !_FS_TINY
p07gbar	2:e869ee8f3c3d	2438	if (fp->dsect != sect) { /* Load data sector if not in cache */
p07gbar	2:e869ee8f3c3d	2439	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	2440	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
p07gbar	2:e869ee8f3c3d	2441	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
p07gbar	2:e869ee8f3c3d	2442	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2443	fp->flag &= ~FA__DIRTY;
p07gbar	2:e869ee8f3c3d	2444	}
p07gbar	2:e869ee8f3c3d	2445	#endif
p07gbar	2:e869ee8f3c3d	2446	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
p07gbar	2:e869ee8f3c3d	2447	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2448	}
p07gbar	2:e869ee8f3c3d	2449	#endif
p07gbar	2:e869ee8f3c3d	2450	fp->dsect = sect;
p07gbar	2:e869ee8f3c3d	2451	}
p07gbar	2:e869ee8f3c3d	2452	rcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
p07gbar	2:e869ee8f3c3d	2453	if (rcnt > btr) rcnt = btr;
p07gbar	2:e869ee8f3c3d	2454	#if _FS_TINY
p07gbar	2:e869ee8f3c3d	2455	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
p07gbar	2:e869ee8f3c3d	2456	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2457	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
p07gbar	2:e869ee8f3c3d	2458	#else
p07gbar	2:e869ee8f3c3d	2459	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
p07gbar	2:e869ee8f3c3d	2460	#endif
p07gbar	2:e869ee8f3c3d	2461	}
p07gbar	2:e869ee8f3c3d	2462
p07gbar	2:e869ee8f3c3d	2463	LEAVE_FF(fp->fs, FR_OK);
p07gbar	2:e869ee8f3c3d	2464	}
p07gbar	2:e869ee8f3c3d	2465
p07gbar	2:e869ee8f3c3d	2466
p07gbar	2:e869ee8f3c3d	2467
p07gbar	2:e869ee8f3c3d	2468
p07gbar	2:e869ee8f3c3d	2469	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	2470	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2471	/* Write File */
p07gbar	2:e869ee8f3c3d	2472	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2473
p07gbar	2:e869ee8f3c3d	2474	FRESULT f_write (
p07gbar	2:e869ee8f3c3d	2475	FIL fp, / Pointer to the file object */
p07gbar	2:e869ee8f3c3d	2476	const void buff, / Pointer to the data to be written */
p07gbar	2:e869ee8f3c3d	2477	UINT btw, /* Number of bytes to write */
p07gbar	2:e869ee8f3c3d	2478	UINT bw / Pointer to number of bytes written */
p07gbar	2:e869ee8f3c3d	2479	)
p07gbar	2:e869ee8f3c3d	2480	{
p07gbar	2:e869ee8f3c3d	2481	FRESULT res;
p07gbar	2:e869ee8f3c3d	2482	DWORD clst, sect;
p07gbar	2:e869ee8f3c3d	2483	UINT wcnt, cc;
p07gbar	2:e869ee8f3c3d	2484	const BYTE wbuff = (const BYTE)buff;
p07gbar	2:e869ee8f3c3d	2485	BYTE csect;
p07gbar	2:e869ee8f3c3d	2486
p07gbar	2:e869ee8f3c3d	2487
p07gbar	2:e869ee8f3c3d	2488	bw = 0; / Initialize byte counter */
p07gbar	2:e869ee8f3c3d	2489
p07gbar	2:e869ee8f3c3d	2490	res = validate(fp->fs, fp->id); /* Check validity */
p07gbar	2:e869ee8f3c3d	2491	if (res != FR_OK) LEAVE_FF(fp->fs, res);
p07gbar	2:e869ee8f3c3d	2492	if (fp->flag & FA__ERROR) /* Aborted file? */
p07gbar	2:e869ee8f3c3d	2493	LEAVE_FF(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	2494	if (!(fp->flag & FA_WRITE)) /* Check access mode */
p07gbar	2:e869ee8f3c3d	2495	LEAVE_FF(fp->fs, FR_DENIED);
p07gbar	2:e869ee8f3c3d	2496	if ((DWORD)(fp->fsize + btw) < fp->fsize) btw = 0; /* File size cannot reach 4GB */
p07gbar	2:e869ee8f3c3d	2497
p07gbar	2:e869ee8f3c3d	2498	for ( ; btw; /* Repeat until all data written */
p07gbar	2:e869ee8f3c3d	2499	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
p07gbar	2:e869ee8f3c3d	2500	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
p07gbar	2:e869ee8f3c3d	2501	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
p07gbar	2:e869ee8f3c3d	2502	if (!csect) { /* On the cluster boundary? */
p07gbar	2:e869ee8f3c3d	2503	if (fp->fptr == 0) { /* On the top of the file? */
p07gbar	2:e869ee8f3c3d	2504	clst = fp->sclust; /* Follow from the origin */
p07gbar	2:e869ee8f3c3d	2505	if (clst == 0) /* When no cluster is allocated, */
p07gbar	2:e869ee8f3c3d	2506	fp->sclust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
p07gbar	2:e869ee8f3c3d	2507	} else { /* Middle or end of the file */
p07gbar	2:e869ee8f3c3d	2508	#if _USE_FASTSEEK
p07gbar	2:e869ee8f3c3d	2509	if (fp->cltbl)
p07gbar	2:e869ee8f3c3d	2510	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
p07gbar	2:e869ee8f3c3d	2511	else
p07gbar	2:e869ee8f3c3d	2512	#endif
p07gbar	2:e869ee8f3c3d	2513	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
p07gbar	2:e869ee8f3c3d	2514	}
p07gbar	2:e869ee8f3c3d	2515	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
p07gbar	2:e869ee8f3c3d	2516	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	2517	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2518	fp->clust = clst; /* Update current cluster */
p07gbar	2:e869ee8f3c3d	2519	}
p07gbar	2:e869ee8f3c3d	2520	#if _FS_TINY
p07gbar	2:e869ee8f3c3d	2521	if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write-back sector cache */
p07gbar	2:e869ee8f3c3d	2522	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2523	#else
p07gbar	2:e869ee8f3c3d	2524	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
p07gbar	2:e869ee8f3c3d	2525	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
p07gbar	2:e869ee8f3c3d	2526	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2527	fp->flag &= ~FA__DIRTY;
p07gbar	2:e869ee8f3c3d	2528	}
p07gbar	2:e869ee8f3c3d	2529	#endif
p07gbar	2:e869ee8f3c3d	2530	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
p07gbar	2:e869ee8f3c3d	2531	if (!sect) ABORT(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	2532	sect += csect;
p07gbar	2:e869ee8f3c3d	2533	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
p07gbar	2:e869ee8f3c3d	2534	if (cc) { /* Write maximum contiguous sectors directly */
p07gbar	2:e869ee8f3c3d	2535	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
p07gbar	2:e869ee8f3c3d	2536	cc = fp->fs->csize - csect;
p07gbar	2:e869ee8f3c3d	2537	if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK)
p07gbar	2:e869ee8f3c3d	2538	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2539	#if _FS_TINY
p07gbar	2:e869ee8f3c3d	2540	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
p07gbar	2:e869ee8f3c3d	2541	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
p07gbar	2:e869ee8f3c3d	2542	fp->fs->wflag = 0;
p07gbar	2:e869ee8f3c3d	2543	}
p07gbar	2:e869ee8f3c3d	2544	#else
p07gbar	2:e869ee8f3c3d	2545	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
p07gbar	2:e869ee8f3c3d	2546	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
p07gbar	2:e869ee8f3c3d	2547	fp->flag &= ~FA__DIRTY;
p07gbar	2:e869ee8f3c3d	2548	}
p07gbar	2:e869ee8f3c3d	2549	#endif
p07gbar	2:e869ee8f3c3d	2550	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
p07gbar	2:e869ee8f3c3d	2551	continue;
p07gbar	2:e869ee8f3c3d	2552	}
p07gbar	2:e869ee8f3c3d	2553	#if _FS_TINY
p07gbar	2:e869ee8f3c3d	2554	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
p07gbar	2:e869ee8f3c3d	2555	if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2556	fp->fs->winsect = sect;
p07gbar	2:e869ee8f3c3d	2557	}
p07gbar	2:e869ee8f3c3d	2558	#else
p07gbar	2:e869ee8f3c3d	2559	if (fp->dsect != sect) { /* Fill sector cache with file data */
p07gbar	2:e869ee8f3c3d	2560	if (fp->fptr < fp->fsize &&
p07gbar	2:e869ee8f3c3d	2561	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
p07gbar	2:e869ee8f3c3d	2562	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2563	}
p07gbar	2:e869ee8f3c3d	2564	#endif
p07gbar	2:e869ee8f3c3d	2565	fp->dsect = sect;
p07gbar	2:e869ee8f3c3d	2566	}
p07gbar	2:e869ee8f3c3d	2567	wcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
p07gbar	2:e869ee8f3c3d	2568	if (wcnt > btw) wcnt = btw;
p07gbar	2:e869ee8f3c3d	2569	#if _FS_TINY
p07gbar	2:e869ee8f3c3d	2570	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
p07gbar	2:e869ee8f3c3d	2571	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2572	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
p07gbar	2:e869ee8f3c3d	2573	fp->fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	2574	#else
p07gbar	2:e869ee8f3c3d	2575	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
p07gbar	2:e869ee8f3c3d	2576	fp->flag \|= FA__DIRTY;
p07gbar	2:e869ee8f3c3d	2577	#endif
p07gbar	2:e869ee8f3c3d	2578	}
p07gbar	2:e869ee8f3c3d	2579
p07gbar	2:e869ee8f3c3d	2580	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
p07gbar	2:e869ee8f3c3d	2581	fp->flag \|= FA__WRITTEN; /* Set file change flag */
p07gbar	2:e869ee8f3c3d	2582
p07gbar	2:e869ee8f3c3d	2583	LEAVE_FF(fp->fs, FR_OK);
p07gbar	2:e869ee8f3c3d	2584	}
p07gbar	2:e869ee8f3c3d	2585
p07gbar	2:e869ee8f3c3d	2586
p07gbar	2:e869ee8f3c3d	2587
p07gbar	2:e869ee8f3c3d	2588
p07gbar	2:e869ee8f3c3d	2589	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2590	/* Synchronize the File Object */
p07gbar	2:e869ee8f3c3d	2591	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2592
p07gbar	2:e869ee8f3c3d	2593	FRESULT f_sync (
p07gbar	2:e869ee8f3c3d	2594	FIL fp / Pointer to the file object */
p07gbar	2:e869ee8f3c3d	2595	)
p07gbar	2:e869ee8f3c3d	2596	{
p07gbar	2:e869ee8f3c3d	2597	FRESULT res;
p07gbar	2:e869ee8f3c3d	2598	DWORD tim;
p07gbar	2:e869ee8f3c3d	2599	BYTE *dir;
p07gbar	2:e869ee8f3c3d	2600
p07gbar	2:e869ee8f3c3d	2601
p07gbar	2:e869ee8f3c3d	2602	res = validate(fp->fs, fp->id); /* Check validity of the object */
p07gbar	2:e869ee8f3c3d	2603	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	2604	if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
p07gbar	2:e869ee8f3c3d	2605	#if !_FS_TINY /* Write-back dirty buffer */
p07gbar	2:e869ee8f3c3d	2606	if (fp->flag & FA__DIRTY) {
p07gbar	2:e869ee8f3c3d	2607	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
p07gbar	2:e869ee8f3c3d	2608	LEAVE_FF(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2609	fp->flag &= ~FA__DIRTY;
p07gbar	2:e869ee8f3c3d	2610	}
p07gbar	2:e869ee8f3c3d	2611	#endif
p07gbar	2:e869ee8f3c3d	2612	/* Update the directory entry */
p07gbar	2:e869ee8f3c3d	2613	res = move_window(fp->fs, fp->dir_sect);
p07gbar	2:e869ee8f3c3d	2614	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	2615	dir = fp->dir_ptr;
p07gbar	2:e869ee8f3c3d	2616	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
p07gbar	2:e869ee8f3c3d	2617	ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
p07gbar	2:e869ee8f3c3d	2618	ST_CLUST(dir, fp->sclust); /* Update start cluster */
p07gbar	2:e869ee8f3c3d	2619	tim = get_fattime(); /* Update updated time */
p07gbar	2:e869ee8f3c3d	2620	ST_DWORD(dir+DIR_WrtTime, tim);
p07gbar	2:e869ee8f3c3d	2621	fp->flag &= ~FA__WRITTEN;
p07gbar	2:e869ee8f3c3d	2622	fp->fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	2623	res = sync(fp->fs);
p07gbar	2:e869ee8f3c3d	2624	}
p07gbar	2:e869ee8f3c3d	2625	}
p07gbar	2:e869ee8f3c3d	2626	}
p07gbar	2:e869ee8f3c3d	2627
p07gbar	2:e869ee8f3c3d	2628	LEAVE_FF(fp->fs, res);
p07gbar	2:e869ee8f3c3d	2629	}
p07gbar	2:e869ee8f3c3d	2630
p07gbar	2:e869ee8f3c3d	2631	#endif /* !_FS_READONLY */
p07gbar	2:e869ee8f3c3d	2632
p07gbar	2:e869ee8f3c3d	2633
p07gbar	2:e869ee8f3c3d	2634
p07gbar	2:e869ee8f3c3d	2635
p07gbar	2:e869ee8f3c3d	2636	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2637	/* Close File */
p07gbar	2:e869ee8f3c3d	2638	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2639
p07gbar	2:e869ee8f3c3d	2640	FRESULT f_close (
p07gbar	2:e869ee8f3c3d	2641	FIL fp / Pointer to the file object to be closed */
p07gbar	2:e869ee8f3c3d	2642	)
p07gbar	2:e869ee8f3c3d	2643	{
p07gbar	2:e869ee8f3c3d	2644	FRESULT res;
p07gbar	2:e869ee8f3c3d	2645
p07gbar	2:e869ee8f3c3d	2646	#if _FS_READONLY
p07gbar	2:e869ee8f3c3d	2647	FATFS *fs = fp->fs;
p07gbar	2:e869ee8f3c3d	2648	res = validate(fs, fp->id);
p07gbar	2:e869ee8f3c3d	2649	if (res == FR_OK) fp->fs = 0; /* Discard file object */
p07gbar	2:e869ee8f3c3d	2650	LEAVE_FF(fs, res);
p07gbar	2:e869ee8f3c3d	2651
p07gbar	2:e869ee8f3c3d	2652	#else
p07gbar	2:e869ee8f3c3d	2653	res = f_sync(fp); /* Flush cached data */
p07gbar	2:e869ee8f3c3d	2654	#if _FS_SHARE
p07gbar	2:e869ee8f3c3d	2655	if (res == FR_OK) { /* Decrement open counter */
p07gbar	2:e869ee8f3c3d	2656	#if _FS_REENTRANT
p07gbar	2:e869ee8f3c3d	2657	res = validate(fp->fs, fp->id);
p07gbar	2:e869ee8f3c3d	2658	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	2659	res = dec_lock(fp->lockid);
p07gbar	2:e869ee8f3c3d	2660	unlock_fs(fp->fs, FR_OK);
p07gbar	2:e869ee8f3c3d	2661	}
p07gbar	2:e869ee8f3c3d	2662	#else
p07gbar	2:e869ee8f3c3d	2663	res = dec_lock(fp->lockid);
p07gbar	2:e869ee8f3c3d	2664	#endif
p07gbar	2:e869ee8f3c3d	2665	}
p07gbar	2:e869ee8f3c3d	2666	#endif
p07gbar	2:e869ee8f3c3d	2667	if (res == FR_OK) fp->fs = 0; /* Discard file object */
p07gbar	2:e869ee8f3c3d	2668	return res;
p07gbar	2:e869ee8f3c3d	2669	#endif
p07gbar	2:e869ee8f3c3d	2670	}
p07gbar	2:e869ee8f3c3d	2671
p07gbar	2:e869ee8f3c3d	2672
p07gbar	2:e869ee8f3c3d	2673
p07gbar	2:e869ee8f3c3d	2674
p07gbar	2:e869ee8f3c3d	2675	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2676	/* Current Drive/Directory Handlings */
p07gbar	2:e869ee8f3c3d	2677	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2678
p07gbar	2:e869ee8f3c3d	2679	#if _FS_RPATH >= 1
p07gbar	2:e869ee8f3c3d	2680
p07gbar	2:e869ee8f3c3d	2681	FRESULT f_chdrive (
p07gbar	2:e869ee8f3c3d	2682	BYTE drv /* Drive number */
p07gbar	2:e869ee8f3c3d	2683	)
p07gbar	2:e869ee8f3c3d	2684	{
p07gbar	2:e869ee8f3c3d	2685	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
p07gbar	2:e869ee8f3c3d	2686
p07gbar	2:e869ee8f3c3d	2687	CurrVol = drv;
p07gbar	2:e869ee8f3c3d	2688
p07gbar	2:e869ee8f3c3d	2689	return FR_OK;
p07gbar	2:e869ee8f3c3d	2690	}
p07gbar	2:e869ee8f3c3d	2691
p07gbar	2:e869ee8f3c3d	2692
p07gbar	2:e869ee8f3c3d	2693
p07gbar	2:e869ee8f3c3d	2694	FRESULT f_chdir (
p07gbar	2:e869ee8f3c3d	2695	const TCHAR path / Pointer to the directory path */
p07gbar	2:e869ee8f3c3d	2696	)
p07gbar	2:e869ee8f3c3d	2697	{
p07gbar	2:e869ee8f3c3d	2698	FRESULT res;
p07gbar	2:e869ee8f3c3d	2699	FATFS_DIR dj;
p07gbar	2:e869ee8f3c3d	2700	DEF_NAMEBUF;
p07gbar	2:e869ee8f3c3d	2701
p07gbar	2:e869ee8f3c3d	2702
p07gbar	2:e869ee8f3c3d	2703	res = chk_mounted(&path, &dj.fs, 0);
p07gbar	2:e869ee8f3c3d	2704	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	2705	INIT_BUF(dj);
p07gbar	2:e869ee8f3c3d	2706	res = follow_path(&dj, path); /* Follow the path */
p07gbar	2:e869ee8f3c3d	2707	FREE_BUF();
p07gbar	2:e869ee8f3c3d	2708	if (res == FR_OK) { /* Follow completed */
p07gbar	2:e869ee8f3c3d	2709	if (!dj.dir) {
p07gbar	2:e869ee8f3c3d	2710	dj.fs->cdir = dj.sclust; /* Start directory itself */
p07gbar	2:e869ee8f3c3d	2711	} else {
p07gbar	2:e869ee8f3c3d	2712	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
p07gbar	2:e869ee8f3c3d	2713	dj.fs->cdir = LD_CLUST(dj.dir);
p07gbar	2:e869ee8f3c3d	2714	else
p07gbar	2:e869ee8f3c3d	2715	res = FR_NO_PATH; /* Reached but a file */
p07gbar	2:e869ee8f3c3d	2716	}
p07gbar	2:e869ee8f3c3d	2717	}
p07gbar	2:e869ee8f3c3d	2718	if (res == FR_NO_FILE) res = FR_NO_PATH;
p07gbar	2:e869ee8f3c3d	2719	}
p07gbar	2:e869ee8f3c3d	2720
p07gbar	2:e869ee8f3c3d	2721	LEAVE_FF(dj.fs, res);
p07gbar	2:e869ee8f3c3d	2722	}
p07gbar	2:e869ee8f3c3d	2723
p07gbar	2:e869ee8f3c3d	2724
p07gbar	2:e869ee8f3c3d	2725	#if _FS_RPATH >= 2
p07gbar	2:e869ee8f3c3d	2726	FRESULT f_getcwd (
p07gbar	2:e869ee8f3c3d	2727	TCHAR path, / Pointer to the directory path */
p07gbar	2:e869ee8f3c3d	2728	UINT sz_path /* Size of path */
p07gbar	2:e869ee8f3c3d	2729	)
p07gbar	2:e869ee8f3c3d	2730	{
p07gbar	2:e869ee8f3c3d	2731	FRESULT res;
p07gbar	2:e869ee8f3c3d	2732	FATFS_DIR dj;
p07gbar	2:e869ee8f3c3d	2733	UINT i, n;
p07gbar	2:e869ee8f3c3d	2734	DWORD ccl;
p07gbar	2:e869ee8f3c3d	2735	TCHAR *tp;
p07gbar	2:e869ee8f3c3d	2736	FILINFO fno;
p07gbar	2:e869ee8f3c3d	2737	DEF_NAMEBUF;
p07gbar	2:e869ee8f3c3d	2738
p07gbar	2:e869ee8f3c3d	2739
p07gbar	2:e869ee8f3c3d	2740	*path = 0;
p07gbar	2:e869ee8f3c3d	2741	res = chk_mounted((const TCHAR*)&path, &dj.fs, 0); / Get current volume */
p07gbar	2:e869ee8f3c3d	2742	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	2743	INIT_BUF(dj);
p07gbar	2:e869ee8f3c3d	2744	i = sz_path; /* Bottom of buffer (dir stack base) */
p07gbar	2:e869ee8f3c3d	2745	dj.sclust = dj.fs->cdir; /* Start to follow upper dir from current dir */
p07gbar	2:e869ee8f3c3d	2746	while ((ccl = dj.sclust) != 0) { /* Repeat while current dir is a sub-dir */
p07gbar	2:e869ee8f3c3d	2747	res = dir_sdi(&dj, 1); /* Get parent dir */
p07gbar	2:e869ee8f3c3d	2748	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	2749	res = dir_read(&dj);
p07gbar	2:e869ee8f3c3d	2750	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	2751	dj.sclust = LD_CLUST(dj.dir); /* Goto parent dir */
p07gbar	2:e869ee8f3c3d	2752	res = dir_sdi(&dj, 0);
p07gbar	2:e869ee8f3c3d	2753	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	2754	do { /* Find the entry links to the child dir */
p07gbar	2:e869ee8f3c3d	2755	res = dir_read(&dj);
p07gbar	2:e869ee8f3c3d	2756	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	2757	if (ccl == LD_CLUST(dj.dir)) break; /* Found the entry */
p07gbar	2:e869ee8f3c3d	2758	res = dir_next(&dj, 0);
p07gbar	2:e869ee8f3c3d	2759	} while (res == FR_OK);
p07gbar	2:e869ee8f3c3d	2760	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
p07gbar	2:e869ee8f3c3d	2761	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	2762	#if _USE_LFN
p07gbar	2:e869ee8f3c3d	2763	fno.lfname = path;
p07gbar	2:e869ee8f3c3d	2764	fno.lfsize = i;
p07gbar	2:e869ee8f3c3d	2765	#endif
p07gbar	2:e869ee8f3c3d	2766	get_fileinfo(&dj, &fno); /* Get the dir name and push it to the buffer */
p07gbar	2:e869ee8f3c3d	2767	tp = fno.fname;
p07gbar	2:e869ee8f3c3d	2768	if (_USE_LFN && *path) tp = path;
p07gbar	2:e869ee8f3c3d	2769	for (n = 0; tp[n]; n++) ;
p07gbar	2:e869ee8f3c3d	2770	if (i < n + 3) {
p07gbar	2:e869ee8f3c3d	2771	res = FR_NOT_ENOUGH_CORE; break;
p07gbar	2:e869ee8f3c3d	2772	}
p07gbar	2:e869ee8f3c3d	2773	while (n) path[--i] = tp[--n];
p07gbar	2:e869ee8f3c3d	2774	path[--i] = '/';
p07gbar	2:e869ee8f3c3d	2775	}
p07gbar	2:e869ee8f3c3d	2776	tp = path;
p07gbar	2:e869ee8f3c3d	2777	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	2778	tp++ = '0' + CurrVol; / Put drive number */
p07gbar	2:e869ee8f3c3d	2779	*tp++ = ':';
p07gbar	2:e869ee8f3c3d	2780	if (i == sz_path) { /* Root-dir */
p07gbar	2:e869ee8f3c3d	2781	*tp++ = '/';
p07gbar	2:e869ee8f3c3d	2782	} else { /* Sub-dir */
p07gbar	2:e869ee8f3c3d	2783	do /* Add stacked path str */
p07gbar	2:e869ee8f3c3d	2784	*tp++ = path[i++];
p07gbar	2:e869ee8f3c3d	2785	while (i < sz_path);
p07gbar	2:e869ee8f3c3d	2786	}
p07gbar	2:e869ee8f3c3d	2787	}
p07gbar	2:e869ee8f3c3d	2788	*tp = 0;
p07gbar	2:e869ee8f3c3d	2789	FREE_BUF();
p07gbar	2:e869ee8f3c3d	2790	}
p07gbar	2:e869ee8f3c3d	2791
p07gbar	2:e869ee8f3c3d	2792	LEAVE_FF(dj.fs, res);
p07gbar	2:e869ee8f3c3d	2793	}
p07gbar	2:e869ee8f3c3d	2794	#endif /* _FS_RPATH >= 2 */
p07gbar	2:e869ee8f3c3d	2795	#endif /* _FS_RPATH >= 1 */
p07gbar	2:e869ee8f3c3d	2796
p07gbar	2:e869ee8f3c3d	2797
p07gbar	2:e869ee8f3c3d	2798
p07gbar	2:e869ee8f3c3d	2799	#if _FS_MINIMIZE <= 2
p07gbar	2:e869ee8f3c3d	2800	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2801	/* Seek File R/W Pointer */
p07gbar	2:e869ee8f3c3d	2802	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2803
p07gbar	2:e869ee8f3c3d	2804	FRESULT f_lseek (
p07gbar	2:e869ee8f3c3d	2805	FIL fp, / Pointer to the file object */
p07gbar	2:e869ee8f3c3d	2806	DWORD ofs /* File pointer from top of file */
p07gbar	2:e869ee8f3c3d	2807	)
p07gbar	2:e869ee8f3c3d	2808	{
p07gbar	2:e869ee8f3c3d	2809	FRESULT res;
p07gbar	2:e869ee8f3c3d	2810
p07gbar	2:e869ee8f3c3d	2811
p07gbar	2:e869ee8f3c3d	2812	res = validate(fp->fs, fp->id); /* Check validity of the object */
p07gbar	2:e869ee8f3c3d	2813	if (res != FR_OK) LEAVE_FF(fp->fs, res);
p07gbar	2:e869ee8f3c3d	2814	if (fp->flag & FA__ERROR) /* Check abort flag */
p07gbar	2:e869ee8f3c3d	2815	LEAVE_FF(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	2816
p07gbar	2:e869ee8f3c3d	2817	#if _USE_FASTSEEK
p07gbar	2:e869ee8f3c3d	2818	if (fp->cltbl) { /* Fast seek */
p07gbar	2:e869ee8f3c3d	2819	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
p07gbar	2:e869ee8f3c3d	2820
p07gbar	2:e869ee8f3c3d	2821	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
p07gbar	2:e869ee8f3c3d	2822	tbl = fp->cltbl;
p07gbar	2:e869ee8f3c3d	2823	tlen = tbl++; ulen = 2; / Given table size and required table size */
p07gbar	2:e869ee8f3c3d	2824	cl = fp->sclust; /* Top of the chain */
p07gbar	2:e869ee8f3c3d	2825	if (cl) {
p07gbar	2:e869ee8f3c3d	2826	do {
p07gbar	2:e869ee8f3c3d	2827	/* Get a fragment */
p07gbar	2:e869ee8f3c3d	2828	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
p07gbar	2:e869ee8f3c3d	2829	do {
p07gbar	2:e869ee8f3c3d	2830	pcl = cl; ncl++;
p07gbar	2:e869ee8f3c3d	2831	cl = get_fat(fp->fs, cl);
p07gbar	2:e869ee8f3c3d	2832	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	2833	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2834	} while (cl == pcl + 1);
p07gbar	2:e869ee8f3c3d	2835	if (ulen <= tlen) { /* Store the length and top of the fragment */
p07gbar	2:e869ee8f3c3d	2836	tbl++ = ncl; tbl++ = tcl;
p07gbar	2:e869ee8f3c3d	2837	}
p07gbar	2:e869ee8f3c3d	2838	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
p07gbar	2:e869ee8f3c3d	2839	}
p07gbar	2:e869ee8f3c3d	2840	fp->cltbl = ulen; / Number of items used */
p07gbar	2:e869ee8f3c3d	2841	if (ulen <= tlen)
p07gbar	2:e869ee8f3c3d	2842	tbl = 0; / Terminate table */
p07gbar	2:e869ee8f3c3d	2843	else
p07gbar	2:e869ee8f3c3d	2844	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
p07gbar	2:e869ee8f3c3d	2845
p07gbar	2:e869ee8f3c3d	2846	} else { /* Fast seek */
p07gbar	2:e869ee8f3c3d	2847	if (ofs > fp->fsize) /* Clip offset at the file size */
p07gbar	2:e869ee8f3c3d	2848	ofs = fp->fsize;
p07gbar	2:e869ee8f3c3d	2849	fp->fptr = ofs; /* Set file pointer */
p07gbar	2:e869ee8f3c3d	2850	if (ofs) {
p07gbar	2:e869ee8f3c3d	2851	fp->clust = clmt_clust(fp, ofs - 1);
p07gbar	2:e869ee8f3c3d	2852	dsc = clust2sect(fp->fs, fp->clust);
p07gbar	2:e869ee8f3c3d	2853	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	2854	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
p07gbar	2:e869ee8f3c3d	2855	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
p07gbar	2:e869ee8f3c3d	2856	#if !_FS_TINY
p07gbar	2:e869ee8f3c3d	2857	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	2858	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
p07gbar	2:e869ee8f3c3d	2859	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
p07gbar	2:e869ee8f3c3d	2860	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2861	fp->flag &= ~FA__DIRTY;
p07gbar	2:e869ee8f3c3d	2862	}
p07gbar	2:e869ee8f3c3d	2863	#endif
p07gbar	2:e869ee8f3c3d	2864	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
p07gbar	2:e869ee8f3c3d	2865	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2866	#endif
p07gbar	2:e869ee8f3c3d	2867	fp->dsect = dsc;
p07gbar	2:e869ee8f3c3d	2868	}
p07gbar	2:e869ee8f3c3d	2869	}
p07gbar	2:e869ee8f3c3d	2870	}
p07gbar	2:e869ee8f3c3d	2871	} else
p07gbar	2:e869ee8f3c3d	2872	#endif
p07gbar	2:e869ee8f3c3d	2873
p07gbar	2:e869ee8f3c3d	2874	/* Normal Seek */
p07gbar	2:e869ee8f3c3d	2875	{
p07gbar	2:e869ee8f3c3d	2876	DWORD clst, bcs, nsect, ifptr;
p07gbar	2:e869ee8f3c3d	2877
p07gbar	2:e869ee8f3c3d	2878	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
p07gbar	2:e869ee8f3c3d	2879	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	2880	&& !(fp->flag & FA_WRITE)
p07gbar	2:e869ee8f3c3d	2881	#endif
p07gbar	2:e869ee8f3c3d	2882	) ofs = fp->fsize;
p07gbar	2:e869ee8f3c3d	2883
p07gbar	2:e869ee8f3c3d	2884	ifptr = fp->fptr;
p07gbar	2:e869ee8f3c3d	2885	fp->fptr = nsect = 0;
p07gbar	2:e869ee8f3c3d	2886	if (ofs) {
p07gbar	2:e869ee8f3c3d	2887	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
p07gbar	2:e869ee8f3c3d	2888	if (ifptr > 0 &&
p07gbar	2:e869ee8f3c3d	2889	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
p07gbar	2:e869ee8f3c3d	2890	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
p07gbar	2:e869ee8f3c3d	2891	ofs -= fp->fptr;
p07gbar	2:e869ee8f3c3d	2892	clst = fp->clust;
p07gbar	2:e869ee8f3c3d	2893	} else { /* When seek to back cluster, */
p07gbar	2:e869ee8f3c3d	2894	clst = fp->sclust; /* start from the first cluster */
p07gbar	2:e869ee8f3c3d	2895	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	2896	if (clst == 0) { /* If no cluster chain, create a new chain */
p07gbar	2:e869ee8f3c3d	2897	clst = create_chain(fp->fs, 0);
p07gbar	2:e869ee8f3c3d	2898	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	2899	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2900	fp->sclust = clst;
p07gbar	2:e869ee8f3c3d	2901	}
p07gbar	2:e869ee8f3c3d	2902	#endif
p07gbar	2:e869ee8f3c3d	2903	fp->clust = clst;
p07gbar	2:e869ee8f3c3d	2904	}
p07gbar	2:e869ee8f3c3d	2905	if (clst != 0) {
p07gbar	2:e869ee8f3c3d	2906	while (ofs > bcs) { /* Cluster following loop */
p07gbar	2:e869ee8f3c3d	2907	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	2908	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
p07gbar	2:e869ee8f3c3d	2909	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
p07gbar	2:e869ee8f3c3d	2910	if (clst == 0) { /* When disk gets full, clip file size */
p07gbar	2:e869ee8f3c3d	2911	ofs = bcs; break;
p07gbar	2:e869ee8f3c3d	2912	}
p07gbar	2:e869ee8f3c3d	2913	} else
p07gbar	2:e869ee8f3c3d	2914	#endif
p07gbar	2:e869ee8f3c3d	2915	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
p07gbar	2:e869ee8f3c3d	2916	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2917	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	2918	fp->clust = clst;
p07gbar	2:e869ee8f3c3d	2919	fp->fptr += bcs;
p07gbar	2:e869ee8f3c3d	2920	ofs -= bcs;
p07gbar	2:e869ee8f3c3d	2921	}
p07gbar	2:e869ee8f3c3d	2922	fp->fptr += ofs;
p07gbar	2:e869ee8f3c3d	2923	if (ofs % SS(fp->fs)) {
p07gbar	2:e869ee8f3c3d	2924	nsect = clust2sect(fp->fs, clst); /* Current sector */
p07gbar	2:e869ee8f3c3d	2925	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	2926	nsect += ofs / SS(fp->fs);
p07gbar	2:e869ee8f3c3d	2927	}
p07gbar	2:e869ee8f3c3d	2928	}
p07gbar	2:e869ee8f3c3d	2929	}
p07gbar	2:e869ee8f3c3d	2930	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
p07gbar	2:e869ee8f3c3d	2931	#if !_FS_TINY
p07gbar	2:e869ee8f3c3d	2932	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	2933	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
p07gbar	2:e869ee8f3c3d	2934	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
p07gbar	2:e869ee8f3c3d	2935	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2936	fp->flag &= ~FA__DIRTY;
p07gbar	2:e869ee8f3c3d	2937	}
p07gbar	2:e869ee8f3c3d	2938	#endif
p07gbar	2:e869ee8f3c3d	2939	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
p07gbar	2:e869ee8f3c3d	2940	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	2941	#endif
p07gbar	2:e869ee8f3c3d	2942	fp->dsect = nsect;
p07gbar	2:e869ee8f3c3d	2943	}
p07gbar	2:e869ee8f3c3d	2944	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	2945	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
p07gbar	2:e869ee8f3c3d	2946	fp->fsize = fp->fptr;
p07gbar	2:e869ee8f3c3d	2947	fp->flag \|= FA__WRITTEN;
p07gbar	2:e869ee8f3c3d	2948	}
p07gbar	2:e869ee8f3c3d	2949	#endif
p07gbar	2:e869ee8f3c3d	2950	}
p07gbar	2:e869ee8f3c3d	2951
p07gbar	2:e869ee8f3c3d	2952	LEAVE_FF(fp->fs, res);
p07gbar	2:e869ee8f3c3d	2953	}
p07gbar	2:e869ee8f3c3d	2954
p07gbar	2:e869ee8f3c3d	2955
p07gbar	2:e869ee8f3c3d	2956
p07gbar	2:e869ee8f3c3d	2957	#if _FS_MINIMIZE <= 1
p07gbar	2:e869ee8f3c3d	2958	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2959	/* Create a Directroy Object */
p07gbar	2:e869ee8f3c3d	2960	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2961
p07gbar	2:e869ee8f3c3d	2962	FRESULT f_opendir (
p07gbar	2:e869ee8f3c3d	2963	FATFS_DIR dj, / Pointer to directory object to create */
p07gbar	2:e869ee8f3c3d	2964	const TCHAR path / Pointer to the directory path */
p07gbar	2:e869ee8f3c3d	2965	)
p07gbar	2:e869ee8f3c3d	2966	{
p07gbar	2:e869ee8f3c3d	2967	FRESULT res;
p07gbar	2:e869ee8f3c3d	2968	DEF_NAMEBUF;
p07gbar	2:e869ee8f3c3d	2969
p07gbar	2:e869ee8f3c3d	2970
p07gbar	2:e869ee8f3c3d	2971	res = chk_mounted(&path, &dj->fs, 0);
p07gbar	2:e869ee8f3c3d	2972	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	2973	INIT_BUF(*dj);
p07gbar	2:e869ee8f3c3d	2974	res = follow_path(dj, path); /* Follow the path to the directory */
p07gbar	2:e869ee8f3c3d	2975	FREE_BUF();
p07gbar	2:e869ee8f3c3d	2976	if (res == FR_OK) { /* Follow completed */
p07gbar	2:e869ee8f3c3d	2977	if (dj->dir) { /* It is not the root dir */
p07gbar	2:e869ee8f3c3d	2978	if (dj->dir[DIR_Attr] & AM_DIR) { /* The object is a directory */
p07gbar	2:e869ee8f3c3d	2979	dj->sclust = LD_CLUST(dj->dir);
p07gbar	2:e869ee8f3c3d	2980	} else { /* The object is not a directory */
p07gbar	2:e869ee8f3c3d	2981	res = FR_NO_PATH;
p07gbar	2:e869ee8f3c3d	2982	}
p07gbar	2:e869ee8f3c3d	2983	}
p07gbar	2:e869ee8f3c3d	2984	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	2985	dj->id = dj->fs->id;
p07gbar	2:e869ee8f3c3d	2986	res = dir_sdi(dj, 0); /* Rewind dir */
p07gbar	2:e869ee8f3c3d	2987	}
p07gbar	2:e869ee8f3c3d	2988	}
p07gbar	2:e869ee8f3c3d	2989	if (res == FR_NO_FILE) res = FR_NO_PATH;
p07gbar	2:e869ee8f3c3d	2990	}
p07gbar	2:e869ee8f3c3d	2991
p07gbar	2:e869ee8f3c3d	2992	LEAVE_FF(dj->fs, res);
p07gbar	2:e869ee8f3c3d	2993	}
p07gbar	2:e869ee8f3c3d	2994
p07gbar	2:e869ee8f3c3d	2995
p07gbar	2:e869ee8f3c3d	2996
p07gbar	2:e869ee8f3c3d	2997
p07gbar	2:e869ee8f3c3d	2998	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	2999	/* Read Directory Entry in Sequense */
p07gbar	2:e869ee8f3c3d	3000	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3001
p07gbar	2:e869ee8f3c3d	3002	FRESULT f_readdir (
p07gbar	2:e869ee8f3c3d	3003	FATFS_DIR dj, / Pointer to the open directory object */
p07gbar	2:e869ee8f3c3d	3004	FILINFO fno / Pointer to file information to return */
p07gbar	2:e869ee8f3c3d	3005	)
p07gbar	2:e869ee8f3c3d	3006	{
p07gbar	2:e869ee8f3c3d	3007	FRESULT res;
p07gbar	2:e869ee8f3c3d	3008	DEF_NAMEBUF;
p07gbar	2:e869ee8f3c3d	3009
p07gbar	2:e869ee8f3c3d	3010
p07gbar	2:e869ee8f3c3d	3011	res = validate(dj->fs, dj->id); /* Check validity of the object */
p07gbar	2:e869ee8f3c3d	3012	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3013	if (!fno) {
p07gbar	2:e869ee8f3c3d	3014	res = dir_sdi(dj, 0); /* Rewind the directory object */
p07gbar	2:e869ee8f3c3d	3015	} else {
p07gbar	2:e869ee8f3c3d	3016	INIT_BUF(*dj);
p07gbar	2:e869ee8f3c3d	3017	res = dir_read(dj); /* Read an directory item */
p07gbar	2:e869ee8f3c3d	3018	if (res == FR_NO_FILE) { /* Reached end of dir */
p07gbar	2:e869ee8f3c3d	3019	dj->sect = 0;
p07gbar	2:e869ee8f3c3d	3020	res = FR_OK;
p07gbar	2:e869ee8f3c3d	3021	}
p07gbar	2:e869ee8f3c3d	3022	if (res == FR_OK) { /* A valid entry is found */
p07gbar	2:e869ee8f3c3d	3023	get_fileinfo(dj, fno); /* Get the object information */
p07gbar	2:e869ee8f3c3d	3024	res = dir_next(dj, 0); /* Increment index for next */
p07gbar	2:e869ee8f3c3d	3025	if (res == FR_NO_FILE) {
p07gbar	2:e869ee8f3c3d	3026	dj->sect = 0;
p07gbar	2:e869ee8f3c3d	3027	res = FR_OK;
p07gbar	2:e869ee8f3c3d	3028	}
p07gbar	2:e869ee8f3c3d	3029	}
p07gbar	2:e869ee8f3c3d	3030	FREE_BUF();
p07gbar	2:e869ee8f3c3d	3031	}
p07gbar	2:e869ee8f3c3d	3032	}
p07gbar	2:e869ee8f3c3d	3033
p07gbar	2:e869ee8f3c3d	3034	LEAVE_FF(dj->fs, res);
p07gbar	2:e869ee8f3c3d	3035	}
p07gbar	2:e869ee8f3c3d	3036
p07gbar	2:e869ee8f3c3d	3037
p07gbar	2:e869ee8f3c3d	3038
p07gbar	2:e869ee8f3c3d	3039	#if _FS_MINIMIZE == 0
p07gbar	2:e869ee8f3c3d	3040	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3041	/* Get File Status */
p07gbar	2:e869ee8f3c3d	3042	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3043
p07gbar	2:e869ee8f3c3d	3044	FRESULT f_stat (
p07gbar	2:e869ee8f3c3d	3045	const TCHAR path, / Pointer to the file path */
p07gbar	2:e869ee8f3c3d	3046	FILINFO fno / Pointer to file information to return */
p07gbar	2:e869ee8f3c3d	3047	)
p07gbar	2:e869ee8f3c3d	3048	{
p07gbar	2:e869ee8f3c3d	3049	FRESULT res;
p07gbar	2:e869ee8f3c3d	3050	FATFS_DIR dj;
p07gbar	2:e869ee8f3c3d	3051	DEF_NAMEBUF;
p07gbar	2:e869ee8f3c3d	3052
p07gbar	2:e869ee8f3c3d	3053
p07gbar	2:e869ee8f3c3d	3054	res = chk_mounted(&path, &dj.fs, 0);
p07gbar	2:e869ee8f3c3d	3055	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3056	INIT_BUF(dj);
p07gbar	2:e869ee8f3c3d	3057	res = follow_path(&dj, path); /* Follow the file path */
p07gbar	2:e869ee8f3c3d	3058	if (res == FR_OK) { /* Follow completed */
p07gbar	2:e869ee8f3c3d	3059	if (dj.dir) /* Found an object */
p07gbar	2:e869ee8f3c3d	3060	get_fileinfo(&dj, fno);
p07gbar	2:e869ee8f3c3d	3061	else /* It is root dir */
p07gbar	2:e869ee8f3c3d	3062	res = FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	3063	}
p07gbar	2:e869ee8f3c3d	3064	FREE_BUF();
p07gbar	2:e869ee8f3c3d	3065	}
p07gbar	2:e869ee8f3c3d	3066
p07gbar	2:e869ee8f3c3d	3067	LEAVE_FF(dj.fs, res);
p07gbar	2:e869ee8f3c3d	3068	}
p07gbar	2:e869ee8f3c3d	3069
p07gbar	2:e869ee8f3c3d	3070
p07gbar	2:e869ee8f3c3d	3071
p07gbar	2:e869ee8f3c3d	3072	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	3073	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3074	/* Get Number of Free Clusters */
p07gbar	2:e869ee8f3c3d	3075	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3076
p07gbar	2:e869ee8f3c3d	3077	FRESULT f_getfree (
p07gbar	2:e869ee8f3c3d	3078	const TCHAR path, / Pointer to the logical drive number (root dir) */
p07gbar	2:e869ee8f3c3d	3079	DWORD nclst, / Pointer to the variable to return number of free clusters */
p07gbar	2:e869ee8f3c3d	3080	FATFS *fatfs / Pointer to pointer to corresponding file system object to return */
p07gbar	2:e869ee8f3c3d	3081	)
p07gbar	2:e869ee8f3c3d	3082	{
p07gbar	2:e869ee8f3c3d	3083	FRESULT res;
p07gbar	2:e869ee8f3c3d	3084	DWORD n, clst, sect, stat;
p07gbar	2:e869ee8f3c3d	3085	UINT i;
p07gbar	2:e869ee8f3c3d	3086	BYTE fat, *p;
p07gbar	2:e869ee8f3c3d	3087
p07gbar	2:e869ee8f3c3d	3088
p07gbar	2:e869ee8f3c3d	3089	/* Get drive number */
p07gbar	2:e869ee8f3c3d	3090	res = chk_mounted(&path, fatfs, 0);
p07gbar	2:e869ee8f3c3d	3091	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3092	/* If free_clust is valid, return it without full cluster scan */
p07gbar	2:e869ee8f3c3d	3093	if ((fatfs)->free_clust <= (fatfs)->n_fatent - 2) {
p07gbar	2:e869ee8f3c3d	3094	nclst = (fatfs)->free_clust;
p07gbar	2:e869ee8f3c3d	3095	} else {
p07gbar	2:e869ee8f3c3d	3096	/* Get number of free clusters */
p07gbar	2:e869ee8f3c3d	3097	fat = (*fatfs)->fs_type;
p07gbar	2:e869ee8f3c3d	3098	n = 0;
p07gbar	2:e869ee8f3c3d	3099	if (fat == FS_FAT12) {
p07gbar	2:e869ee8f3c3d	3100	clst = 2;
p07gbar	2:e869ee8f3c3d	3101	do {
p07gbar	2:e869ee8f3c3d	3102	stat = get_fat(*fatfs, clst);
p07gbar	2:e869ee8f3c3d	3103	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
p07gbar	2:e869ee8f3c3d	3104	if (stat == 1) { res = FR_INT_ERR; break; }
p07gbar	2:e869ee8f3c3d	3105	if (stat == 0) n++;
p07gbar	2:e869ee8f3c3d	3106	} while (++clst < (*fatfs)->n_fatent);
p07gbar	2:e869ee8f3c3d	3107	} else {
p07gbar	2:e869ee8f3c3d	3108	clst = (*fatfs)->n_fatent;
p07gbar	2:e869ee8f3c3d	3109	sect = (*fatfs)->fatbase;
p07gbar	2:e869ee8f3c3d	3110	i = 0; p = 0;
p07gbar	2:e869ee8f3c3d	3111	do {
p07gbar	2:e869ee8f3c3d	3112	if (!i) {
p07gbar	2:e869ee8f3c3d	3113	res = move_window(*fatfs, sect++);
p07gbar	2:e869ee8f3c3d	3114	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	3115	p = (*fatfs)->win;
p07gbar	2:e869ee8f3c3d	3116	i = SS(*fatfs);
p07gbar	2:e869ee8f3c3d	3117	}
p07gbar	2:e869ee8f3c3d	3118	if (fat == FS_FAT16) {
p07gbar	2:e869ee8f3c3d	3119	if (LD_WORD(p) == 0) n++;
p07gbar	2:e869ee8f3c3d	3120	p += 2; i -= 2;
p07gbar	2:e869ee8f3c3d	3121	} else {
p07gbar	2:e869ee8f3c3d	3122	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
p07gbar	2:e869ee8f3c3d	3123	p += 4; i -= 4;
p07gbar	2:e869ee8f3c3d	3124	}
p07gbar	2:e869ee8f3c3d	3125	} while (--clst);
p07gbar	2:e869ee8f3c3d	3126	}
p07gbar	2:e869ee8f3c3d	3127	(*fatfs)->free_clust = n;
p07gbar	2:e869ee8f3c3d	3128	if (fat == FS_FAT32) (*fatfs)->fsi_flag = 1;
p07gbar	2:e869ee8f3c3d	3129	*nclst = n;
p07gbar	2:e869ee8f3c3d	3130	}
p07gbar	2:e869ee8f3c3d	3131	}
p07gbar	2:e869ee8f3c3d	3132	LEAVE_FF(*fatfs, res);
p07gbar	2:e869ee8f3c3d	3133	}
p07gbar	2:e869ee8f3c3d	3134
p07gbar	2:e869ee8f3c3d	3135
p07gbar	2:e869ee8f3c3d	3136
p07gbar	2:e869ee8f3c3d	3137
p07gbar	2:e869ee8f3c3d	3138	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3139	/* Truncate File */
p07gbar	2:e869ee8f3c3d	3140	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3141
p07gbar	2:e869ee8f3c3d	3142	FRESULT f_truncate (
p07gbar	2:e869ee8f3c3d	3143	FIL fp / Pointer to the file object */
p07gbar	2:e869ee8f3c3d	3144	)
p07gbar	2:e869ee8f3c3d	3145	{
p07gbar	2:e869ee8f3c3d	3146	FRESULT res;
p07gbar	2:e869ee8f3c3d	3147	DWORD ncl;
p07gbar	2:e869ee8f3c3d	3148
p07gbar	2:e869ee8f3c3d	3149
p07gbar	2:e869ee8f3c3d	3150	res = validate(fp->fs, fp->id); /* Check validity of the object */
p07gbar	2:e869ee8f3c3d	3151	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3152	if (fp->flag & FA__ERROR) { /* Check abort flag */
p07gbar	2:e869ee8f3c3d	3153	res = FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	3154	} else {
p07gbar	2:e869ee8f3c3d	3155	if (!(fp->flag & FA_WRITE)) /* Check access mode */
p07gbar	2:e869ee8f3c3d	3156	res = FR_DENIED;
p07gbar	2:e869ee8f3c3d	3157	}
p07gbar	2:e869ee8f3c3d	3158	}
p07gbar	2:e869ee8f3c3d	3159	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3160	if (fp->fsize > fp->fptr) {
p07gbar	2:e869ee8f3c3d	3161	fp->fsize = fp->fptr; /* Set file size to current R/W point */
p07gbar	2:e869ee8f3c3d	3162	fp->flag \|= FA__WRITTEN;
p07gbar	2:e869ee8f3c3d	3163	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
p07gbar	2:e869ee8f3c3d	3164	res = remove_chain(fp->fs, fp->sclust);
p07gbar	2:e869ee8f3c3d	3165	fp->sclust = 0;
p07gbar	2:e869ee8f3c3d	3166	} else { /* When truncate a part of the file, remove remaining clusters */
p07gbar	2:e869ee8f3c3d	3167	ncl = get_fat(fp->fs, fp->clust);
p07gbar	2:e869ee8f3c3d	3168	res = FR_OK;
p07gbar	2:e869ee8f3c3d	3169	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	3170	if (ncl == 1) res = FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	3171	if (res == FR_OK && ncl < fp->fs->n_fatent) {
p07gbar	2:e869ee8f3c3d	3172	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
p07gbar	2:e869ee8f3c3d	3173	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
p07gbar	2:e869ee8f3c3d	3174	}
p07gbar	2:e869ee8f3c3d	3175	}
p07gbar	2:e869ee8f3c3d	3176	}
p07gbar	2:e869ee8f3c3d	3177	if (res != FR_OK) fp->flag \|= FA__ERROR;
p07gbar	2:e869ee8f3c3d	3178	}
p07gbar	2:e869ee8f3c3d	3179
p07gbar	2:e869ee8f3c3d	3180	LEAVE_FF(fp->fs, res);
p07gbar	2:e869ee8f3c3d	3181	}
p07gbar	2:e869ee8f3c3d	3182
p07gbar	2:e869ee8f3c3d	3183
p07gbar	2:e869ee8f3c3d	3184
p07gbar	2:e869ee8f3c3d	3185
p07gbar	2:e869ee8f3c3d	3186	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3187	/* Delete a File or Directory */
p07gbar	2:e869ee8f3c3d	3188	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3189
p07gbar	2:e869ee8f3c3d	3190	FRESULT f_unlink (
p07gbar	2:e869ee8f3c3d	3191	const TCHAR path / Pointer to the file or directory path */
p07gbar	2:e869ee8f3c3d	3192	)
p07gbar	2:e869ee8f3c3d	3193	{
p07gbar	2:e869ee8f3c3d	3194	FRESULT res;
p07gbar	2:e869ee8f3c3d	3195	FATFS_DIR dj, sdj;
p07gbar	2:e869ee8f3c3d	3196	BYTE *dir;
p07gbar	2:e869ee8f3c3d	3197	DWORD dclst;
p07gbar	2:e869ee8f3c3d	3198	DEF_NAMEBUF;
p07gbar	2:e869ee8f3c3d	3199
p07gbar	2:e869ee8f3c3d	3200
p07gbar	2:e869ee8f3c3d	3201	res = chk_mounted(&path, &dj.fs, 1);
p07gbar	2:e869ee8f3c3d	3202	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3203	INIT_BUF(dj);
p07gbar	2:e869ee8f3c3d	3204	res = follow_path(&dj, path); /* Follow the file path */
p07gbar	2:e869ee8f3c3d	3205	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
p07gbar	2:e869ee8f3c3d	3206	res = FR_INVALID_NAME; /* Cannot remove dot entry */
p07gbar	2:e869ee8f3c3d	3207	#if _FS_SHARE
p07gbar	2:e869ee8f3c3d	3208	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open file */
p07gbar	2:e869ee8f3c3d	3209	#endif
p07gbar	2:e869ee8f3c3d	3210	if (res == FR_OK) { /* The object is accessible */
p07gbar	2:e869ee8f3c3d	3211	dir = dj.dir;
p07gbar	2:e869ee8f3c3d	3212	if (!dir) {
p07gbar	2:e869ee8f3c3d	3213	res = FR_INVALID_NAME; /* Cannot remove the start directory */
p07gbar	2:e869ee8f3c3d	3214	} else {
p07gbar	2:e869ee8f3c3d	3215	if (dir[DIR_Attr] & AM_RDO)
p07gbar	2:e869ee8f3c3d	3216	res = FR_DENIED; /* Cannot remove R/O object */
p07gbar	2:e869ee8f3c3d	3217	}
p07gbar	2:e869ee8f3c3d	3218	dclst = LD_CLUST(dir);
p07gbar	2:e869ee8f3c3d	3219	if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-dir? */
p07gbar	2:e869ee8f3c3d	3220	if (dclst < 2) {
p07gbar	2:e869ee8f3c3d	3221	res = FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	3222	} else {
p07gbar	2:e869ee8f3c3d	3223	mem_cpy(&sdj, &dj, sizeof(FATFS_DIR)); /* Check if the sub-dir is empty or not */
p07gbar	2:e869ee8f3c3d	3224	sdj.sclust = dclst;
p07gbar	2:e869ee8f3c3d	3225	res = dir_sdi(&sdj, 2); /* Exclude dot entries */
p07gbar	2:e869ee8f3c3d	3226	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3227	res = dir_read(&sdj);
p07gbar	2:e869ee8f3c3d	3228	if (res == FR_OK /* Not empty dir */
p07gbar	2:e869ee8f3c3d	3229	#if _FS_RPATH
p07gbar	2:e869ee8f3c3d	3230	\|\| dclst == sdj.fs->cdir /* Current dir */
p07gbar	2:e869ee8f3c3d	3231	#endif
p07gbar	2:e869ee8f3c3d	3232	) res = FR_DENIED;
p07gbar	2:e869ee8f3c3d	3233	if (res == FR_NO_FILE) res = FR_OK; /* Empty */
p07gbar	2:e869ee8f3c3d	3234	}
p07gbar	2:e869ee8f3c3d	3235	}
p07gbar	2:e869ee8f3c3d	3236	}
p07gbar	2:e869ee8f3c3d	3237	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3238	res = dir_remove(&dj); /* Remove the directory entry */
p07gbar	2:e869ee8f3c3d	3239	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3240	if (dclst) /* Remove the cluster chain if exist */
p07gbar	2:e869ee8f3c3d	3241	res = remove_chain(dj.fs, dclst);
p07gbar	2:e869ee8f3c3d	3242	if (res == FR_OK) res = sync(dj.fs);
p07gbar	2:e869ee8f3c3d	3243	}
p07gbar	2:e869ee8f3c3d	3244	}
p07gbar	2:e869ee8f3c3d	3245	}
p07gbar	2:e869ee8f3c3d	3246	FREE_BUF();
p07gbar	2:e869ee8f3c3d	3247	}
p07gbar	2:e869ee8f3c3d	3248	LEAVE_FF(dj.fs, res);
p07gbar	2:e869ee8f3c3d	3249	}
p07gbar	2:e869ee8f3c3d	3250
p07gbar	2:e869ee8f3c3d	3251
p07gbar	2:e869ee8f3c3d	3252
p07gbar	2:e869ee8f3c3d	3253
p07gbar	2:e869ee8f3c3d	3254	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3255	/* Create a Directory */
p07gbar	2:e869ee8f3c3d	3256	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3257
p07gbar	2:e869ee8f3c3d	3258	FRESULT f_mkdir (
p07gbar	2:e869ee8f3c3d	3259	const TCHAR path / Pointer to the directory path */
p07gbar	2:e869ee8f3c3d	3260	)
p07gbar	2:e869ee8f3c3d	3261	{
p07gbar	2:e869ee8f3c3d	3262	FRESULT res;
p07gbar	2:e869ee8f3c3d	3263	FATFS_DIR dj;
p07gbar	2:e869ee8f3c3d	3264	BYTE *dir, n;
p07gbar	2:e869ee8f3c3d	3265	DWORD dsc, dcl, pcl, tim = get_fattime();
p07gbar	2:e869ee8f3c3d	3266	DEF_NAMEBUF;
p07gbar	2:e869ee8f3c3d	3267
p07gbar	2:e869ee8f3c3d	3268
p07gbar	2:e869ee8f3c3d	3269	res = chk_mounted(&path, &dj.fs, 1);
p07gbar	2:e869ee8f3c3d	3270	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3271	INIT_BUF(dj);
p07gbar	2:e869ee8f3c3d	3272	res = follow_path(&dj, path); /* Follow the file path */
p07gbar	2:e869ee8f3c3d	3273	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
p07gbar	2:e869ee8f3c3d	3274	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
p07gbar	2:e869ee8f3c3d	3275	res = FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	3276	if (res == FR_NO_FILE) { /* Can create a new directory */
p07gbar	2:e869ee8f3c3d	3277	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
p07gbar	2:e869ee8f3c3d	3278	res = FR_OK;
p07gbar	2:e869ee8f3c3d	3279	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
p07gbar	2:e869ee8f3c3d	3280	if (dcl == 1) res = FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	3281	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	3282	if (res == FR_OK) /* Flush FAT */
p07gbar	2:e869ee8f3c3d	3283	res = move_window(dj.fs, 0);
p07gbar	2:e869ee8f3c3d	3284	if (res == FR_OK) { /* Initialize the new directory table */
p07gbar	2:e869ee8f3c3d	3285	dsc = clust2sect(dj.fs, dcl);
p07gbar	2:e869ee8f3c3d	3286	dir = dj.fs->win;
p07gbar	2:e869ee8f3c3d	3287	mem_set(dir, 0, SS(dj.fs));
p07gbar	2:e869ee8f3c3d	3288	mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */
p07gbar	2:e869ee8f3c3d	3289	dir[DIR_Name] = '.';
p07gbar	2:e869ee8f3c3d	3290	dir[DIR_Attr] = AM_DIR;
p07gbar	2:e869ee8f3c3d	3291	ST_DWORD(dir+DIR_WrtTime, tim);
p07gbar	2:e869ee8f3c3d	3292	ST_CLUST(dir, dcl);
p07gbar	2:e869ee8f3c3d	3293	mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
p07gbar	2:e869ee8f3c3d	3294	dir[33] = '.'; pcl = dj.sclust;
p07gbar	2:e869ee8f3c3d	3295	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
p07gbar	2:e869ee8f3c3d	3296	pcl = 0;
p07gbar	2:e869ee8f3c3d	3297	ST_CLUST(dir+SZ_DIR, pcl);
p07gbar	2:e869ee8f3c3d	3298	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
p07gbar	2:e869ee8f3c3d	3299	dj.fs->winsect = dsc++;
p07gbar	2:e869ee8f3c3d	3300	dj.fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	3301	res = move_window(dj.fs, 0);
p07gbar	2:e869ee8f3c3d	3302	if (res != FR_OK) break;
p07gbar	2:e869ee8f3c3d	3303	mem_set(dir, 0, SS(dj.fs));
p07gbar	2:e869ee8f3c3d	3304	}
p07gbar	2:e869ee8f3c3d	3305	}
p07gbar	2:e869ee8f3c3d	3306	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
p07gbar	2:e869ee8f3c3d	3307	if (res != FR_OK) {
p07gbar	2:e869ee8f3c3d	3308	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
p07gbar	2:e869ee8f3c3d	3309	} else {
p07gbar	2:e869ee8f3c3d	3310	dir = dj.dir;
p07gbar	2:e869ee8f3c3d	3311	dir[DIR_Attr] = AM_DIR; /* Attribute */
p07gbar	2:e869ee8f3c3d	3312	ST_DWORD(dir+DIR_WrtTime, tim); /* Created time */
p07gbar	2:e869ee8f3c3d	3313	ST_CLUST(dir, dcl); /* Table start cluster */
p07gbar	2:e869ee8f3c3d	3314	dj.fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	3315	res = sync(dj.fs);
p07gbar	2:e869ee8f3c3d	3316	}
p07gbar	2:e869ee8f3c3d	3317	}
p07gbar	2:e869ee8f3c3d	3318	FREE_BUF();
p07gbar	2:e869ee8f3c3d	3319	}
p07gbar	2:e869ee8f3c3d	3320
p07gbar	2:e869ee8f3c3d	3321	LEAVE_FF(dj.fs, res);
p07gbar	2:e869ee8f3c3d	3322	}
p07gbar	2:e869ee8f3c3d	3323
p07gbar	2:e869ee8f3c3d	3324
p07gbar	2:e869ee8f3c3d	3325
p07gbar	2:e869ee8f3c3d	3326
p07gbar	2:e869ee8f3c3d	3327	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3328	/* Change Attribute */
p07gbar	2:e869ee8f3c3d	3329	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3330
p07gbar	2:e869ee8f3c3d	3331	FRESULT f_chmod (
p07gbar	2:e869ee8f3c3d	3332	const TCHAR path, / Pointer to the file path */
p07gbar	2:e869ee8f3c3d	3333	BYTE value, /* Attribute bits */
p07gbar	2:e869ee8f3c3d	3334	BYTE mask /* Attribute mask to change */
p07gbar	2:e869ee8f3c3d	3335	)
p07gbar	2:e869ee8f3c3d	3336	{
p07gbar	2:e869ee8f3c3d	3337	FRESULT res;
p07gbar	2:e869ee8f3c3d	3338	FATFS_DIR dj;
p07gbar	2:e869ee8f3c3d	3339	BYTE *dir;
p07gbar	2:e869ee8f3c3d	3340	DEF_NAMEBUF;
p07gbar	2:e869ee8f3c3d	3341
p07gbar	2:e869ee8f3c3d	3342
p07gbar	2:e869ee8f3c3d	3343	res = chk_mounted(&path, &dj.fs, 1);
p07gbar	2:e869ee8f3c3d	3344	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3345	INIT_BUF(dj);
p07gbar	2:e869ee8f3c3d	3346	res = follow_path(&dj, path); /* Follow the file path */
p07gbar	2:e869ee8f3c3d	3347	FREE_BUF();
p07gbar	2:e869ee8f3c3d	3348	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
p07gbar	2:e869ee8f3c3d	3349	res = FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	3350	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3351	dir = dj.dir;
p07gbar	2:e869ee8f3c3d	3352	if (!dir) { /* Is it a root directory? */
p07gbar	2:e869ee8f3c3d	3353	res = FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	3354	} else { /* File or sub directory */
p07gbar	2:e869ee8f3c3d	3355	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
p07gbar	2:e869ee8f3c3d	3356	dir[DIR_Attr] = (value & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
p07gbar	2:e869ee8f3c3d	3357	dj.fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	3358	res = sync(dj.fs);
p07gbar	2:e869ee8f3c3d	3359	}
p07gbar	2:e869ee8f3c3d	3360	}
p07gbar	2:e869ee8f3c3d	3361	}
p07gbar	2:e869ee8f3c3d	3362
p07gbar	2:e869ee8f3c3d	3363	LEAVE_FF(dj.fs, res);
p07gbar	2:e869ee8f3c3d	3364	}
p07gbar	2:e869ee8f3c3d	3365
p07gbar	2:e869ee8f3c3d	3366
p07gbar	2:e869ee8f3c3d	3367
p07gbar	2:e869ee8f3c3d	3368
p07gbar	2:e869ee8f3c3d	3369	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3370	/* Change Timestamp */
p07gbar	2:e869ee8f3c3d	3371	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3372
p07gbar	2:e869ee8f3c3d	3373	FRESULT f_utime (
p07gbar	2:e869ee8f3c3d	3374	const TCHAR path, / Pointer to the file/directory name */
p07gbar	2:e869ee8f3c3d	3375	const FILINFO fno / Pointer to the time stamp to be set */
p07gbar	2:e869ee8f3c3d	3376	)
p07gbar	2:e869ee8f3c3d	3377	{
p07gbar	2:e869ee8f3c3d	3378	FRESULT res;
p07gbar	2:e869ee8f3c3d	3379	FATFS_DIR dj;
p07gbar	2:e869ee8f3c3d	3380	BYTE *dir;
p07gbar	2:e869ee8f3c3d	3381	DEF_NAMEBUF;
p07gbar	2:e869ee8f3c3d	3382
p07gbar	2:e869ee8f3c3d	3383
p07gbar	2:e869ee8f3c3d	3384	res = chk_mounted(&path, &dj.fs, 1);
p07gbar	2:e869ee8f3c3d	3385	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3386	INIT_BUF(dj);
p07gbar	2:e869ee8f3c3d	3387	res = follow_path(&dj, path); /* Follow the file path */
p07gbar	2:e869ee8f3c3d	3388	FREE_BUF();
p07gbar	2:e869ee8f3c3d	3389	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
p07gbar	2:e869ee8f3c3d	3390	res = FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	3391	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3392	dir = dj.dir;
p07gbar	2:e869ee8f3c3d	3393	if (!dir) { /* Root directory */
p07gbar	2:e869ee8f3c3d	3394	res = FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	3395	} else { /* File or sub-directory */
p07gbar	2:e869ee8f3c3d	3396	ST_WORD(dir+DIR_WrtTime, fno->ftime);
p07gbar	2:e869ee8f3c3d	3397	ST_WORD(dir+DIR_WrtDate, fno->fdate);
p07gbar	2:e869ee8f3c3d	3398	dj.fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	3399	res = sync(dj.fs);
p07gbar	2:e869ee8f3c3d	3400	}
p07gbar	2:e869ee8f3c3d	3401	}
p07gbar	2:e869ee8f3c3d	3402	}
p07gbar	2:e869ee8f3c3d	3403
p07gbar	2:e869ee8f3c3d	3404	LEAVE_FF(dj.fs, res);
p07gbar	2:e869ee8f3c3d	3405	}
p07gbar	2:e869ee8f3c3d	3406
p07gbar	2:e869ee8f3c3d	3407
p07gbar	2:e869ee8f3c3d	3408
p07gbar	2:e869ee8f3c3d	3409
p07gbar	2:e869ee8f3c3d	3410	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3411	/* Rename File/Directory */
p07gbar	2:e869ee8f3c3d	3412	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3413
p07gbar	2:e869ee8f3c3d	3414	FRESULT f_rename (
p07gbar	2:e869ee8f3c3d	3415	const TCHAR path_old, / Pointer to the old name */
p07gbar	2:e869ee8f3c3d	3416	const TCHAR path_new / Pointer to the new name */
p07gbar	2:e869ee8f3c3d	3417	)
p07gbar	2:e869ee8f3c3d	3418	{
p07gbar	2:e869ee8f3c3d	3419	FRESULT res;
p07gbar	2:e869ee8f3c3d	3420	FATFS_DIR djo, djn;
p07gbar	2:e869ee8f3c3d	3421	BYTE buf[21], *dir;
p07gbar	2:e869ee8f3c3d	3422	DWORD dw;
p07gbar	2:e869ee8f3c3d	3423	DEF_NAMEBUF;
p07gbar	2:e869ee8f3c3d	3424
p07gbar	2:e869ee8f3c3d	3425
p07gbar	2:e869ee8f3c3d	3426	res = chk_mounted(&path_old, &djo.fs, 1);
p07gbar	2:e869ee8f3c3d	3427	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3428	djn.fs = djo.fs;
p07gbar	2:e869ee8f3c3d	3429	INIT_BUF(djo);
p07gbar	2:e869ee8f3c3d	3430	res = follow_path(&djo, path_old); /* Check old object */
p07gbar	2:e869ee8f3c3d	3431	if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
p07gbar	2:e869ee8f3c3d	3432	res = FR_INVALID_NAME;
p07gbar	2:e869ee8f3c3d	3433	#if _FS_SHARE
p07gbar	2:e869ee8f3c3d	3434	if (res == FR_OK) res = chk_lock(&djo, 2);
p07gbar	2:e869ee8f3c3d	3435	#endif
p07gbar	2:e869ee8f3c3d	3436	if (res == FR_OK) { /* Old object is found */
p07gbar	2:e869ee8f3c3d	3437	if (!djo.dir) { /* Is root dir? */
p07gbar	2:e869ee8f3c3d	3438	res = FR_NO_FILE;
p07gbar	2:e869ee8f3c3d	3439	} else {
p07gbar	2:e869ee8f3c3d	3440	mem_cpy(buf, djo.dir+DIR_Attr, 21); /* Save the object information except for name */
p07gbar	2:e869ee8f3c3d	3441	mem_cpy(&djn, &djo, sizeof(FATFS_DIR)); /* Check new object */
p07gbar	2:e869ee8f3c3d	3442	res = follow_path(&djn, path_new);
p07gbar	2:e869ee8f3c3d	3443	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
p07gbar	2:e869ee8f3c3d	3444	if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
p07gbar	2:e869ee8f3c3d	3445	/* Start critical section that any interruption or error can cause cross-link */
p07gbar	2:e869ee8f3c3d	3446	res = dir_register(&djn); /* Register the new entry */
p07gbar	2:e869ee8f3c3d	3447	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3448	dir = djn.dir; /* Copy object information except for name */
p07gbar	2:e869ee8f3c3d	3449	mem_cpy(dir+13, buf+2, 19);
p07gbar	2:e869ee8f3c3d	3450	dir[DIR_Attr] = buf[0] \| AM_ARC;
p07gbar	2:e869ee8f3c3d	3451	djo.fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	3452	if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) { /* Update .. entry in the directory if needed */
p07gbar	2:e869ee8f3c3d	3453	dw = clust2sect(djn.fs, LD_CLUST(dir));
p07gbar	2:e869ee8f3c3d	3454	if (!dw) {
p07gbar	2:e869ee8f3c3d	3455	res = FR_INT_ERR;
p07gbar	2:e869ee8f3c3d	3456	} else {
p07gbar	2:e869ee8f3c3d	3457	res = move_window(djn.fs, dw);
p07gbar	2:e869ee8f3c3d	3458	dir = djn.fs->win+SZ_DIR; /* .. entry */
p07gbar	2:e869ee8f3c3d	3459	if (res == FR_OK && dir[1] == '.') {
p07gbar	2:e869ee8f3c3d	3460	dw = (djn.fs->fs_type == FS_FAT32 && djn.sclust == djn.fs->dirbase) ? 0 : djn.sclust;
p07gbar	2:e869ee8f3c3d	3461	ST_CLUST(dir, dw);
p07gbar	2:e869ee8f3c3d	3462	djn.fs->wflag = 1;
p07gbar	2:e869ee8f3c3d	3463	}
p07gbar	2:e869ee8f3c3d	3464	}
p07gbar	2:e869ee8f3c3d	3465	}
p07gbar	2:e869ee8f3c3d	3466	if (res == FR_OK) {
p07gbar	2:e869ee8f3c3d	3467	res = dir_remove(&djo); /* Remove old entry */
p07gbar	2:e869ee8f3c3d	3468	if (res == FR_OK)
p07gbar	2:e869ee8f3c3d	3469	res = sync(djo.fs);
p07gbar	2:e869ee8f3c3d	3470	}
p07gbar	2:e869ee8f3c3d	3471	}
p07gbar	2:e869ee8f3c3d	3472	/* End critical section */
p07gbar	2:e869ee8f3c3d	3473	}
p07gbar	2:e869ee8f3c3d	3474	}
p07gbar	2:e869ee8f3c3d	3475	}
p07gbar	2:e869ee8f3c3d	3476	FREE_BUF();
p07gbar	2:e869ee8f3c3d	3477	}
p07gbar	2:e869ee8f3c3d	3478	LEAVE_FF(djo.fs, res);
p07gbar	2:e869ee8f3c3d	3479	}
p07gbar	2:e869ee8f3c3d	3480
p07gbar	2:e869ee8f3c3d	3481	#endif /* !_FS_READONLY */
p07gbar	2:e869ee8f3c3d	3482	#endif /* _FS_MINIMIZE == 0 */
p07gbar	2:e869ee8f3c3d	3483	#endif /* _FS_MINIMIZE <= 1 */
p07gbar	2:e869ee8f3c3d	3484	#endif /* _FS_MINIMIZE <= 2 */
p07gbar	2:e869ee8f3c3d	3485
p07gbar	2:e869ee8f3c3d	3486
p07gbar	2:e869ee8f3c3d	3487
p07gbar	2:e869ee8f3c3d	3488	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3489	/* Forward data to the stream directly (available on only tiny cfg) */
p07gbar	2:e869ee8f3c3d	3490	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3491	#if _USE_FORWARD && _FS_TINY
p07gbar	2:e869ee8f3c3d	3492
p07gbar	2:e869ee8f3c3d	3493	FRESULT f_forward (
p07gbar	2:e869ee8f3c3d	3494	FIL fp, / Pointer to the file object */
p07gbar	2:e869ee8f3c3d	3495	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
p07gbar	2:e869ee8f3c3d	3496	UINT btr, /* Number of bytes to forward */
p07gbar	2:e869ee8f3c3d	3497	UINT bf / Pointer to number of bytes forwarded */
p07gbar	2:e869ee8f3c3d	3498	)
p07gbar	2:e869ee8f3c3d	3499	{
p07gbar	2:e869ee8f3c3d	3500	FRESULT res;
p07gbar	2:e869ee8f3c3d	3501	DWORD remain, clst, sect;
p07gbar	2:e869ee8f3c3d	3502	UINT rcnt;
p07gbar	2:e869ee8f3c3d	3503	BYTE csect;
p07gbar	2:e869ee8f3c3d	3504
p07gbar	2:e869ee8f3c3d	3505
p07gbar	2:e869ee8f3c3d	3506	bf = 0; / Initialize byte counter */
p07gbar	2:e869ee8f3c3d	3507
p07gbar	2:e869ee8f3c3d	3508	res = validate(fp->fs, fp->id); /* Check validity of the object */
p07gbar	2:e869ee8f3c3d	3509	if (res != FR_OK) LEAVE_FF(fp->fs, res);
p07gbar	2:e869ee8f3c3d	3510	if (fp->flag & FA__ERROR) /* Check error flag */
p07gbar	2:e869ee8f3c3d	3511	LEAVE_FF(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	3512	if (!(fp->flag & FA_READ)) /* Check access mode */
p07gbar	2:e869ee8f3c3d	3513	LEAVE_FF(fp->fs, FR_DENIED);
p07gbar	2:e869ee8f3c3d	3514
p07gbar	2:e869ee8f3c3d	3515	remain = fp->fsize - fp->fptr;
p07gbar	2:e869ee8f3c3d	3516	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
p07gbar	2:e869ee8f3c3d	3517
p07gbar	2:e869ee8f3c3d	3518	for ( ; btr && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
p07gbar	2:e869ee8f3c3d	3519	fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
p07gbar	2:e869ee8f3c3d	3520	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
p07gbar	2:e869ee8f3c3d	3521	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
p07gbar	2:e869ee8f3c3d	3522	if (!csect) { /* On the cluster boundary? */
p07gbar	2:e869ee8f3c3d	3523	clst = (fp->fptr == 0) ? /* On the top of the file? */
p07gbar	2:e869ee8f3c3d	3524	fp->sclust : get_fat(fp->fs, fp->clust);
p07gbar	2:e869ee8f3c3d	3525	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	3526	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	3527	fp->clust = clst; /* Update current cluster */
p07gbar	2:e869ee8f3c3d	3528	}
p07gbar	2:e869ee8f3c3d	3529	}
p07gbar	2:e869ee8f3c3d	3530	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
p07gbar	2:e869ee8f3c3d	3531	if (!sect) ABORT(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	3532	sect += csect;
p07gbar	2:e869ee8f3c3d	3533	if (move_window(fp->fs, sect)) /* Move sector window */
p07gbar	2:e869ee8f3c3d	3534	ABORT(fp->fs, FR_DISK_ERR);
p07gbar	2:e869ee8f3c3d	3535	fp->dsect = sect;
p07gbar	2:e869ee8f3c3d	3536	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
p07gbar	2:e869ee8f3c3d	3537	if (rcnt > btr) rcnt = btr;
p07gbar	2:e869ee8f3c3d	3538	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
p07gbar	2:e869ee8f3c3d	3539	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
p07gbar	2:e869ee8f3c3d	3540	}
p07gbar	2:e869ee8f3c3d	3541
p07gbar	2:e869ee8f3c3d	3542	LEAVE_FF(fp->fs, FR_OK);
p07gbar	2:e869ee8f3c3d	3543	}
p07gbar	2:e869ee8f3c3d	3544	#endif /* _USE_FORWARD */
p07gbar	2:e869ee8f3c3d	3545
p07gbar	2:e869ee8f3c3d	3546
p07gbar	2:e869ee8f3c3d	3547
p07gbar	2:e869ee8f3c3d	3548	#if _USE_MKFS && !_FS_READONLY
p07gbar	2:e869ee8f3c3d	3549	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3550	/* Create File System on the Drive */
p07gbar	2:e869ee8f3c3d	3551	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3552	#define N_ROOTDIR 512 /* Number of root dir entries for FAT12/16 */
p07gbar	2:e869ee8f3c3d	3553	#define N_FATS 1 /* Number of FAT copies (1 or 2) */
p07gbar	2:e869ee8f3c3d	3554
p07gbar	2:e869ee8f3c3d	3555
p07gbar	2:e869ee8f3c3d	3556	FRESULT f_mkfs (
p07gbar	2:e869ee8f3c3d	3557	BYTE drv, /* Logical drive number */
p07gbar	2:e869ee8f3c3d	3558	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
p07gbar	2:e869ee8f3c3d	3559	UINT au /* Allocation unit size [bytes] */
p07gbar	2:e869ee8f3c3d	3560	)
p07gbar	2:e869ee8f3c3d	3561	{
p07gbar	2:e869ee8f3c3d	3562	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
p07gbar	2:e869ee8f3c3d	3563	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
p07gbar	2:e869ee8f3c3d	3564	BYTE fmt, md, sys, *tbl, pdrv, part;
p07gbar	2:e869ee8f3c3d	3565	DWORD n_clst, vs, n, wsect;
p07gbar	2:e869ee8f3c3d	3566	UINT i;
p07gbar	2:e869ee8f3c3d	3567	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
p07gbar	2:e869ee8f3c3d	3568	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
p07gbar	2:e869ee8f3c3d	3569	FATFS *fs;
p07gbar	2:e869ee8f3c3d	3570	DSTATUS stat;
p07gbar	2:e869ee8f3c3d	3571
p07gbar	2:e869ee8f3c3d	3572
p07gbar	2:e869ee8f3c3d	3573	/* Check mounted drive and clear work area */
p07gbar	2:e869ee8f3c3d	3574	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
p07gbar	2:e869ee8f3c3d	3575	if (sfd > 1) return FR_INVALID_PARAMETER;
p07gbar	2:e869ee8f3c3d	3576	if (au & (au - 1)) return FR_INVALID_PARAMETER;
p07gbar	2:e869ee8f3c3d	3577	fs = FatFs[drv];
p07gbar	2:e869ee8f3c3d	3578	if (!fs) return FR_NOT_ENABLED;
p07gbar	2:e869ee8f3c3d	3579	fs->fs_type = 0;
p07gbar	2:e869ee8f3c3d	3580	pdrv = LD2PD(drv); /* Physical drive */
p07gbar	2:e869ee8f3c3d	3581	part = LD2PT(drv); /* Partition (0:auto detect, 1-4:get from partition table)*/
p07gbar	2:e869ee8f3c3d	3582
p07gbar	2:e869ee8f3c3d	3583	/* Get disk statics */
p07gbar	2:e869ee8f3c3d	3584	stat = disk_initialize(pdrv);
p07gbar	2:e869ee8f3c3d	3585	if (stat & STA_NOINIT) return FR_NOT_READY;
p07gbar	2:e869ee8f3c3d	3586	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
p07gbar	2:e869ee8f3c3d	3587	#if _MAX_SS != 512 /* Get disk sector size */
p07gbar	2:e869ee8f3c3d	3588	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS)
p07gbar	2:e869ee8f3c3d	3589	return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	3590	#endif
p07gbar	2:e869ee8f3c3d	3591	if (_MULTI_PARTITION && part) {
p07gbar	2:e869ee8f3c3d	3592	/* Get partition information from partition table in the MBR */
p07gbar	2:e869ee8f3c3d	3593	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	3594	if (LD_WORD(fs->win+BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
p07gbar	2:e869ee8f3c3d	3595	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
p07gbar	2:e869ee8f3c3d	3596	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
p07gbar	2:e869ee8f3c3d	3597	b_vol = LD_DWORD(tbl+8); /* Volume start sector */
p07gbar	2:e869ee8f3c3d	3598	n_vol = LD_DWORD(tbl+12); /* Volume size */
p07gbar	2:e869ee8f3c3d	3599	} else {
p07gbar	2:e869ee8f3c3d	3600	/* Create a partition in this function */
p07gbar	2:e869ee8f3c3d	3601	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
p07gbar	2:e869ee8f3c3d	3602	return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	3603	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
p07gbar	2:e869ee8f3c3d	3604	n_vol -= b_vol; /* Volume size */
p07gbar	2:e869ee8f3c3d	3605	}
p07gbar	2:e869ee8f3c3d	3606
p07gbar	2:e869ee8f3c3d	3607	if (!au) { /* AU auto selection */
p07gbar	2:e869ee8f3c3d	3608	vs = n_vol / (2000 / (SS(fs) / 512));
p07gbar	2:e869ee8f3c3d	3609	for (i = 0; vs < vst[i]; i++) ;
p07gbar	2:e869ee8f3c3d	3610	au = cst[i];
p07gbar	2:e869ee8f3c3d	3611	}
p07gbar	2:e869ee8f3c3d	3612	au /= SS(fs); /* Number of sectors per cluster */
p07gbar	2:e869ee8f3c3d	3613	if (au == 0) au = 1;
p07gbar	2:e869ee8f3c3d	3614	if (au > 128) au = 128;
p07gbar	2:e869ee8f3c3d	3615
p07gbar	2:e869ee8f3c3d	3616	/* Pre-compute number of clusters and FAT syb-type */
p07gbar	2:e869ee8f3c3d	3617	n_clst = n_vol / au;
p07gbar	2:e869ee8f3c3d	3618	fmt = FS_FAT12;
p07gbar	2:e869ee8f3c3d	3619	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
p07gbar	2:e869ee8f3c3d	3620	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
p07gbar	2:e869ee8f3c3d	3621
p07gbar	2:e869ee8f3c3d	3622	/* Determine offset and size of FAT structure */
p07gbar	2:e869ee8f3c3d	3623	if (fmt == FS_FAT32) {
p07gbar	2:e869ee8f3c3d	3624	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
p07gbar	2:e869ee8f3c3d	3625	n_rsv = 32;
p07gbar	2:e869ee8f3c3d	3626	n_dir = 0;
p07gbar	2:e869ee8f3c3d	3627	} else {
p07gbar	2:e869ee8f3c3d	3628	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
p07gbar	2:e869ee8f3c3d	3629	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
p07gbar	2:e869ee8f3c3d	3630	n_rsv = 1;
p07gbar	2:e869ee8f3c3d	3631	n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
p07gbar	2:e869ee8f3c3d	3632	}
p07gbar	2:e869ee8f3c3d	3633	b_fat = b_vol + n_rsv; /* FAT area start sector */
p07gbar	2:e869ee8f3c3d	3634	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
p07gbar	2:e869ee8f3c3d	3635	b_data = b_dir + n_dir; /* Data area start sector */
p07gbar	2:e869ee8f3c3d	3636	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
p07gbar	2:e869ee8f3c3d	3637
p07gbar	2:e869ee8f3c3d	3638	/* Align data start sector to erase block boundary (for flash memory media) */
p07gbar	2:e869ee8f3c3d	3639	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
p07gbar	2:e869ee8f3c3d	3640	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
p07gbar	2:e869ee8f3c3d	3641	n = (n - b_data) / N_FATS;
p07gbar	2:e869ee8f3c3d	3642	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
p07gbar	2:e869ee8f3c3d	3643	n_rsv += n;
p07gbar	2:e869ee8f3c3d	3644	b_fat += n;
p07gbar	2:e869ee8f3c3d	3645	} else { /* FAT12/16: Expand FAT size */
p07gbar	2:e869ee8f3c3d	3646	n_fat += n;
p07gbar	2:e869ee8f3c3d	3647	}
p07gbar	2:e869ee8f3c3d	3648
p07gbar	2:e869ee8f3c3d	3649	/* Determine number of clusters and final check of validity of the FAT sub-type */
p07gbar	2:e869ee8f3c3d	3650	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
p07gbar	2:e869ee8f3c3d	3651	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
p07gbar	2:e869ee8f3c3d	3652	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
p07gbar	2:e869ee8f3c3d	3653	return FR_MKFS_ABORTED;
p07gbar	2:e869ee8f3c3d	3654
p07gbar	2:e869ee8f3c3d	3655	switch (fmt) { /* Determine system ID for partition table */
p07gbar	2:e869ee8f3c3d	3656	case FS_FAT12: sys = 0x01; break;
p07gbar	2:e869ee8f3c3d	3657	case FS_FAT16: sys = (n_vol < 0x10000) ? 0x04 : 0x06; break;
p07gbar	2:e869ee8f3c3d	3658	default: sys = 0x0C;
p07gbar	2:e869ee8f3c3d	3659	}
p07gbar	2:e869ee8f3c3d	3660
p07gbar	2:e869ee8f3c3d	3661	if (_MULTI_PARTITION && part) {
p07gbar	2:e869ee8f3c3d	3662	/* Update system ID in the partition table */
p07gbar	2:e869ee8f3c3d	3663	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
p07gbar	2:e869ee8f3c3d	3664	tbl[4] = sys;
p07gbar	2:e869ee8f3c3d	3665	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	3666	md = 0xF8;
p07gbar	2:e869ee8f3c3d	3667	} else {
p07gbar	2:e869ee8f3c3d	3668	if (sfd) { /* No patition table (SFD) */
p07gbar	2:e869ee8f3c3d	3669	md = 0xF0;
p07gbar	2:e869ee8f3c3d	3670	} else { /* Create partition table (FDISK) */
p07gbar	2:e869ee8f3c3d	3671	mem_set(fs->win, 0, SS(fs));
p07gbar	2:e869ee8f3c3d	3672	tbl = fs->win+MBR_Table; /* Create partiton table for single partition in the drive */
p07gbar	2:e869ee8f3c3d	3673	tbl[1] = 1; /* Partition start head */
p07gbar	2:e869ee8f3c3d	3674	tbl[2] = 1; /* Partition start sector */
p07gbar	2:e869ee8f3c3d	3675	tbl[3] = 0; /* Partition start cylinder */
p07gbar	2:e869ee8f3c3d	3676	tbl[4] = sys; /* System type */
p07gbar	2:e869ee8f3c3d	3677	tbl[5] = 254; /* Partition end head */
p07gbar	2:e869ee8f3c3d	3678	n = (b_vol + n_vol) / 63 / 255;
p07gbar	2:e869ee8f3c3d	3679	tbl[6] = (BYTE)((n >> 2) \| 63); /* Partiiton end sector */
p07gbar	2:e869ee8f3c3d	3680	tbl[7] = (BYTE)n; /* End cylinder */
p07gbar	2:e869ee8f3c3d	3681	ST_DWORD(tbl+8, 63); /* Partition start in LBA */
p07gbar	2:e869ee8f3c3d	3682	ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
p07gbar	2:e869ee8f3c3d	3683	ST_WORD(fs->win+BS_55AA, 0xAA55); /* MBR signature */
p07gbar	2:e869ee8f3c3d	3684	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR sector */
p07gbar	2:e869ee8f3c3d	3685	return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	3686	md = 0xF8;
p07gbar	2:e869ee8f3c3d	3687	}
p07gbar	2:e869ee8f3c3d	3688	}
p07gbar	2:e869ee8f3c3d	3689
p07gbar	2:e869ee8f3c3d	3690	/* Create BPB in the VBR */
p07gbar	2:e869ee8f3c3d	3691	tbl = fs->win; /* Clear sector */
p07gbar	2:e869ee8f3c3d	3692	mem_set(tbl, 0, SS(fs));
p07gbar	2:e869ee8f3c3d	3693	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
p07gbar	2:e869ee8f3c3d	3694	i = SS(fs); /* Sector size */
p07gbar	2:e869ee8f3c3d	3695	ST_WORD(tbl+BPB_BytsPerSec, i);
p07gbar	2:e869ee8f3c3d	3696	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
p07gbar	2:e869ee8f3c3d	3697	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
p07gbar	2:e869ee8f3c3d	3698	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
p07gbar	2:e869ee8f3c3d	3699	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of rootdir entries */
p07gbar	2:e869ee8f3c3d	3700	ST_WORD(tbl+BPB_RootEntCnt, i);
p07gbar	2:e869ee8f3c3d	3701	if (n_vol < 0x10000) { /* Number of total sectors */
p07gbar	2:e869ee8f3c3d	3702	ST_WORD(tbl+BPB_TotSec16, n_vol);
p07gbar	2:e869ee8f3c3d	3703	} else {
p07gbar	2:e869ee8f3c3d	3704	ST_DWORD(tbl+BPB_TotSec32, n_vol);
p07gbar	2:e869ee8f3c3d	3705	}
p07gbar	2:e869ee8f3c3d	3706	tbl[BPB_Media] = md; /* Media descriptor */
p07gbar	2:e869ee8f3c3d	3707	ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
p07gbar	2:e869ee8f3c3d	3708	ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
p07gbar	2:e869ee8f3c3d	3709	ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
p07gbar	2:e869ee8f3c3d	3710	n = get_fattime(); /* Use current time as VSN */
p07gbar	2:e869ee8f3c3d	3711	if (fmt == FS_FAT32) {
p07gbar	2:e869ee8f3c3d	3712	ST_DWORD(tbl+BS_VolID32, n); /* VSN */
p07gbar	2:e869ee8f3c3d	3713	ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
p07gbar	2:e869ee8f3c3d	3714	ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
p07gbar	2:e869ee8f3c3d	3715	ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (VBR+1) */
p07gbar	2:e869ee8f3c3d	3716	ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
p07gbar	2:e869ee8f3c3d	3717	tbl[BS_DrvNum32] = 0x80; /* Drive number */
p07gbar	2:e869ee8f3c3d	3718	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
p07gbar	2:e869ee8f3c3d	3719	mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
p07gbar	2:e869ee8f3c3d	3720	} else {
p07gbar	2:e869ee8f3c3d	3721	ST_DWORD(tbl+BS_VolID, n); /* VSN */
p07gbar	2:e869ee8f3c3d	3722	ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
p07gbar	2:e869ee8f3c3d	3723	tbl[BS_DrvNum] = 0x80; /* Drive number */
p07gbar	2:e869ee8f3c3d	3724	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
p07gbar	2:e869ee8f3c3d	3725	mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
p07gbar	2:e869ee8f3c3d	3726	}
p07gbar	2:e869ee8f3c3d	3727	ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
p07gbar	2:e869ee8f3c3d	3728	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
p07gbar	2:e869ee8f3c3d	3729	return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	3730	if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR+6) */
p07gbar	2:e869ee8f3c3d	3731	disk_write(pdrv, tbl, b_vol + 6, 1);
p07gbar	2:e869ee8f3c3d	3732
p07gbar	2:e869ee8f3c3d	3733	/* Initialize FAT area */
p07gbar	2:e869ee8f3c3d	3734	wsect = b_fat;
p07gbar	2:e869ee8f3c3d	3735	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
p07gbar	2:e869ee8f3c3d	3736	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
p07gbar	2:e869ee8f3c3d	3737	n = md; /* Media descriptor byte */
p07gbar	2:e869ee8f3c3d	3738	if (fmt != FS_FAT32) {
p07gbar	2:e869ee8f3c3d	3739	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
p07gbar	2:e869ee8f3c3d	3740	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
p07gbar	2:e869ee8f3c3d	3741	} else {
p07gbar	2:e869ee8f3c3d	3742	n \|= 0xFFFFFF00;
p07gbar	2:e869ee8f3c3d	3743	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
p07gbar	2:e869ee8f3c3d	3744	ST_DWORD(tbl+4, 0xFFFFFFFF);
p07gbar	2:e869ee8f3c3d	3745	ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
p07gbar	2:e869ee8f3c3d	3746	}
p07gbar	2:e869ee8f3c3d	3747	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
p07gbar	2:e869ee8f3c3d	3748	return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	3749	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
p07gbar	2:e869ee8f3c3d	3750	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
p07gbar	2:e869ee8f3c3d	3751	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
p07gbar	2:e869ee8f3c3d	3752	return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	3753	}
p07gbar	2:e869ee8f3c3d	3754	}
p07gbar	2:e869ee8f3c3d	3755
p07gbar	2:e869ee8f3c3d	3756	/* Initialize root directory */
p07gbar	2:e869ee8f3c3d	3757	i = (fmt == FS_FAT32) ? au : n_dir;
p07gbar	2:e869ee8f3c3d	3758	do {
p07gbar	2:e869ee8f3c3d	3759	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
p07gbar	2:e869ee8f3c3d	3760	return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	3761	} while (--i);
p07gbar	2:e869ee8f3c3d	3762
p07gbar	2:e869ee8f3c3d	3763	#if _USE_ERASE /* Erase data area if needed */
p07gbar	2:e869ee8f3c3d	3764	{
p07gbar	2:e869ee8f3c3d	3765	DWORD eb[2];
p07gbar	2:e869ee8f3c3d	3766
p07gbar	2:e869ee8f3c3d	3767	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
p07gbar	2:e869ee8f3c3d	3768	disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
p07gbar	2:e869ee8f3c3d	3769	}
p07gbar	2:e869ee8f3c3d	3770	#endif
p07gbar	2:e869ee8f3c3d	3771
p07gbar	2:e869ee8f3c3d	3772	/* Create FSInfo if needed */
p07gbar	2:e869ee8f3c3d	3773	if (fmt == FS_FAT32) {
p07gbar	2:e869ee8f3c3d	3774	ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
p07gbar	2:e869ee8f3c3d	3775	ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
p07gbar	2:e869ee8f3c3d	3776	ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
p07gbar	2:e869ee8f3c3d	3777	ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
p07gbar	2:e869ee8f3c3d	3778	ST_WORD(tbl+BS_55AA, 0xAA55);
p07gbar	2:e869ee8f3c3d	3779	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
p07gbar	2:e869ee8f3c3d	3780	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
p07gbar	2:e869ee8f3c3d	3781	}
p07gbar	2:e869ee8f3c3d	3782
p07gbar	2:e869ee8f3c3d	3783	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	3784	}
p07gbar	2:e869ee8f3c3d	3785
p07gbar	2:e869ee8f3c3d	3786
p07gbar	2:e869ee8f3c3d	3787	#if _MULTI_PARTITION == 2
p07gbar	2:e869ee8f3c3d	3788	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3789	/* Divide Physical Drive */
p07gbar	2:e869ee8f3c3d	3790	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3791
p07gbar	2:e869ee8f3c3d	3792	FRESULT f_fdisk (
p07gbar	2:e869ee8f3c3d	3793	BYTE pdrv, /* Physical drive number */
p07gbar	2:e869ee8f3c3d	3794	const DWORD szt[], /* Pointer to the size table for each partitions */
p07gbar	2:e869ee8f3c3d	3795	void* work /* Pointer to the working buffer */
p07gbar	2:e869ee8f3c3d	3796	)
p07gbar	2:e869ee8f3c3d	3797	{
p07gbar	2:e869ee8f3c3d	3798	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
p07gbar	2:e869ee8f3c3d	3799	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
p07gbar	2:e869ee8f3c3d	3800	DSTATUS stat;
p07gbar	2:e869ee8f3c3d	3801	DWORD sz_disk, sz_part, s_part;
p07gbar	2:e869ee8f3c3d	3802
p07gbar	2:e869ee8f3c3d	3803
p07gbar	2:e869ee8f3c3d	3804	stat = disk_initialize(pdrv);
p07gbar	2:e869ee8f3c3d	3805	if (stat & STA_NOINIT) return FR_NOT_READY;
p07gbar	2:e869ee8f3c3d	3806	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
p07gbar	2:e869ee8f3c3d	3807	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
p07gbar	2:e869ee8f3c3d	3808
p07gbar	2:e869ee8f3c3d	3809	/* Determine CHS in the table regardless of the drive geometry */
p07gbar	2:e869ee8f3c3d	3810	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
p07gbar	2:e869ee8f3c3d	3811	if (n == 256) n--;
p07gbar	2:e869ee8f3c3d	3812	e_hd = n - 1;
p07gbar	2:e869ee8f3c3d	3813	sz_cyl = 63 * n;
p07gbar	2:e869ee8f3c3d	3814	tot_cyl = sz_disk / sz_cyl;
p07gbar	2:e869ee8f3c3d	3815
p07gbar	2:e869ee8f3c3d	3816	/* Create partition table */
p07gbar	2:e869ee8f3c3d	3817	mem_set(buf, 0, _MAX_SS);
p07gbar	2:e869ee8f3c3d	3818	p = buf + MBR_Table; b_cyl = 0;
p07gbar	2:e869ee8f3c3d	3819	for (i = 0; i < 4; i++, p += SZ_PTE) {
p07gbar	2:e869ee8f3c3d	3820	p_cyl = (szt[i] <= 100) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
p07gbar	2:e869ee8f3c3d	3821	if (!p_cyl) continue;
p07gbar	2:e869ee8f3c3d	3822	s_part = (DWORD)sz_cyl * b_cyl;
p07gbar	2:e869ee8f3c3d	3823	sz_part = (DWORD)sz_cyl * p_cyl;
p07gbar	2:e869ee8f3c3d	3824	if (i == 0) { /* Exclude first track of cylinder 0 */
p07gbar	2:e869ee8f3c3d	3825	s_hd = 1;
p07gbar	2:e869ee8f3c3d	3826	s_part += 63; sz_part -= 63;
p07gbar	2:e869ee8f3c3d	3827	} else {
p07gbar	2:e869ee8f3c3d	3828	s_hd = 0;
p07gbar	2:e869ee8f3c3d	3829	}
p07gbar	2:e869ee8f3c3d	3830	e_cyl = b_cyl + p_cyl - 1;
p07gbar	2:e869ee8f3c3d	3831	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
p07gbar	2:e869ee8f3c3d	3832
p07gbar	2:e869ee8f3c3d	3833	/* Set partition table */
p07gbar	2:e869ee8f3c3d	3834	p[1] = s_hd; /* Start head */
p07gbar	2:e869ee8f3c3d	3835	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
p07gbar	2:e869ee8f3c3d	3836	p[3] = (BYTE)b_cyl; /* Start cylinder */
p07gbar	2:e869ee8f3c3d	3837	p[4] = 0x06; /* System type (temporary setting) */
p07gbar	2:e869ee8f3c3d	3838	p[5] = e_hd; /* End head */
p07gbar	2:e869ee8f3c3d	3839	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
p07gbar	2:e869ee8f3c3d	3840	p[7] = (BYTE)e_cyl; /* End cylinder */
p07gbar	2:e869ee8f3c3d	3841	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
p07gbar	2:e869ee8f3c3d	3842	ST_DWORD(p + 12, sz_part); /* Partition size */
p07gbar	2:e869ee8f3c3d	3843
p07gbar	2:e869ee8f3c3d	3844	/* Next partition */
p07gbar	2:e869ee8f3c3d	3845	b_cyl += p_cyl;
p07gbar	2:e869ee8f3c3d	3846	}
p07gbar	2:e869ee8f3c3d	3847	ST_WORD(p, 0xAA55);
p07gbar	2:e869ee8f3c3d	3848
p07gbar	2:e869ee8f3c3d	3849	/* Write it to the MBR */
p07gbar	2:e869ee8f3c3d	3850	return (disk_write(pdrv, buf, 0, 1) \|\| disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
p07gbar	2:e869ee8f3c3d	3851	}
p07gbar	2:e869ee8f3c3d	3852
p07gbar	2:e869ee8f3c3d	3853
p07gbar	2:e869ee8f3c3d	3854	#endif /* _MULTI_PARTITION == 2 */
p07gbar	2:e869ee8f3c3d	3855	#endif /* _USE_MKFS && !_FS_READONLY */
p07gbar	2:e869ee8f3c3d	3856
p07gbar	2:e869ee8f3c3d	3857
p07gbar	2:e869ee8f3c3d	3858
p07gbar	2:e869ee8f3c3d	3859
p07gbar	2:e869ee8f3c3d	3860	#if _USE_STRFUNC
p07gbar	2:e869ee8f3c3d	3861	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3862	/* Get a string from the file */
p07gbar	2:e869ee8f3c3d	3863	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3864	TCHAR* f_gets (
p07gbar	2:e869ee8f3c3d	3865	TCHAR* buff, /* Pointer to the string buffer to read */
p07gbar	2:e869ee8f3c3d	3866	int len, /* Size of string buffer (characters) */
p07gbar	2:e869ee8f3c3d	3867	FIL* fil /* Pointer to the file object */
p07gbar	2:e869ee8f3c3d	3868	)
p07gbar	2:e869ee8f3c3d	3869	{
p07gbar	2:e869ee8f3c3d	3870	int n = 0;
p07gbar	2:e869ee8f3c3d	3871	TCHAR c, *p = buff;
p07gbar	2:e869ee8f3c3d	3872	BYTE s[2];
p07gbar	2:e869ee8f3c3d	3873	UINT rc;
p07gbar	2:e869ee8f3c3d	3874
p07gbar	2:e869ee8f3c3d	3875
p07gbar	2:e869ee8f3c3d	3876	while (n < len - 1) { /* Read bytes until buffer gets filled */
p07gbar	2:e869ee8f3c3d	3877	f_read(fil, s, 1, &rc);
p07gbar	2:e869ee8f3c3d	3878	if (rc != 1) break; /* Break on EOF or error */
p07gbar	2:e869ee8f3c3d	3879	c = s[0];
p07gbar	2:e869ee8f3c3d	3880	#if _LFN_UNICODE /* Read a character in UTF-8 encoding */
p07gbar	2:e869ee8f3c3d	3881	if (c >= 0x80) {
p07gbar	2:e869ee8f3c3d	3882	if (c < 0xC0) continue; /* Skip stray trailer */
p07gbar	2:e869ee8f3c3d	3883	if (c < 0xE0) { /* Two-byte sequense */
p07gbar	2:e869ee8f3c3d	3884	f_read(fil, s, 1, &rc);
p07gbar	2:e869ee8f3c3d	3885	if (rc != 1) break;
p07gbar	2:e869ee8f3c3d	3886	c = ((c & 0x1F) << 6) \| (s[0] & 0x3F);
p07gbar	2:e869ee8f3c3d	3887	if (c < 0x80) c = '?';
p07gbar	2:e869ee8f3c3d	3888	} else {
p07gbar	2:e869ee8f3c3d	3889	if (c < 0xF0) { /* Three-byte sequense */
p07gbar	2:e869ee8f3c3d	3890	f_read(fil, s, 2, &rc);
p07gbar	2:e869ee8f3c3d	3891	if (rc != 2) break;
p07gbar	2:e869ee8f3c3d	3892	c = (c << 12) \| ((s[0] & 0x3F) << 6) \| (s[1] & 0x3F);
p07gbar	2:e869ee8f3c3d	3893	if (c < 0x800) c = '?';
p07gbar	2:e869ee8f3c3d	3894	} else { /* Reject four-byte sequense */
p07gbar	2:e869ee8f3c3d	3895	c = '?';
p07gbar	2:e869ee8f3c3d	3896	}
p07gbar	2:e869ee8f3c3d	3897	}
p07gbar	2:e869ee8f3c3d	3898	}
p07gbar	2:e869ee8f3c3d	3899	#endif
p07gbar	2:e869ee8f3c3d	3900	#if _USE_STRFUNC >= 2
p07gbar	2:e869ee8f3c3d	3901	if (c == '\r') continue; /* Strip '\r' */
p07gbar	2:e869ee8f3c3d	3902	#endif
p07gbar	2:e869ee8f3c3d	3903	*p++ = c;
p07gbar	2:e869ee8f3c3d	3904	n++;
p07gbar	2:e869ee8f3c3d	3905	if (c == '\n') break; /* Break on EOL */
p07gbar	2:e869ee8f3c3d	3906	}
p07gbar	2:e869ee8f3c3d	3907	*p = 0;
p07gbar	2:e869ee8f3c3d	3908	return n ? buff : 0; /* When no data read (eof or error), return with error. */
p07gbar	2:e869ee8f3c3d	3909	}
p07gbar	2:e869ee8f3c3d	3910
p07gbar	2:e869ee8f3c3d	3911
p07gbar	2:e869ee8f3c3d	3912
p07gbar	2:e869ee8f3c3d	3913	#if !_FS_READONLY
p07gbar	2:e869ee8f3c3d	3914	#include <stdarg.h>
p07gbar	2:e869ee8f3c3d	3915	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3916	/* Put a character to the file */
p07gbar	2:e869ee8f3c3d	3917	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3918	int f_putc (
p07gbar	2:e869ee8f3c3d	3919	TCHAR c, /* A character to be output */
p07gbar	2:e869ee8f3c3d	3920	FIL* fil /* Pointer to the file object */
p07gbar	2:e869ee8f3c3d	3921	)
p07gbar	2:e869ee8f3c3d	3922	{
p07gbar	2:e869ee8f3c3d	3923	UINT bw, btw;
p07gbar	2:e869ee8f3c3d	3924	BYTE s[3];
p07gbar	2:e869ee8f3c3d	3925
p07gbar	2:e869ee8f3c3d	3926
p07gbar	2:e869ee8f3c3d	3927	#if _USE_STRFUNC >= 2
p07gbar	2:e869ee8f3c3d	3928	if (c == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */
p07gbar	2:e869ee8f3c3d	3929	#endif
p07gbar	2:e869ee8f3c3d	3930
p07gbar	2:e869ee8f3c3d	3931	#if _LFN_UNICODE /* Write the character in UTF-8 encoding */
p07gbar	2:e869ee8f3c3d	3932	if (c < 0x80) { /* 7-bit */
p07gbar	2:e869ee8f3c3d	3933	s[0] = (BYTE)c;
p07gbar	2:e869ee8f3c3d	3934	btw = 1;
p07gbar	2:e869ee8f3c3d	3935	} else {
p07gbar	2:e869ee8f3c3d	3936	if (c < 0x800) { /* 11-bit */
p07gbar	2:e869ee8f3c3d	3937	s[0] = (BYTE)(0xC0 \| (c >> 6));
p07gbar	2:e869ee8f3c3d	3938	s[1] = (BYTE)(0x80 \| (c & 0x3F));
p07gbar	2:e869ee8f3c3d	3939	btw = 2;
p07gbar	2:e869ee8f3c3d	3940	} else { /* 16-bit */
p07gbar	2:e869ee8f3c3d	3941	s[0] = (BYTE)(0xE0 \| (c >> 12));
p07gbar	2:e869ee8f3c3d	3942	s[1] = (BYTE)(0x80 \| ((c >> 6) & 0x3F));
p07gbar	2:e869ee8f3c3d	3943	s[2] = (BYTE)(0x80 \| (c & 0x3F));
p07gbar	2:e869ee8f3c3d	3944	btw = 3;
p07gbar	2:e869ee8f3c3d	3945	}
p07gbar	2:e869ee8f3c3d	3946	}
p07gbar	2:e869ee8f3c3d	3947	#else /* Write the character without conversion */
p07gbar	2:e869ee8f3c3d	3948	s[0] = (BYTE)c;
p07gbar	2:e869ee8f3c3d	3949	btw = 1;
p07gbar	2:e869ee8f3c3d	3950	#endif
p07gbar	2:e869ee8f3c3d	3951	f_write(fil, s, btw, &bw); /* Write the char to the file */
p07gbar	2:e869ee8f3c3d	3952	return (bw == btw) ? 1 : EOF; /* Return the result */
p07gbar	2:e869ee8f3c3d	3953	}
p07gbar	2:e869ee8f3c3d	3954
p07gbar	2:e869ee8f3c3d	3955
p07gbar	2:e869ee8f3c3d	3956
p07gbar	2:e869ee8f3c3d	3957
p07gbar	2:e869ee8f3c3d	3958	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3959	/* Put a string to the file */
p07gbar	2:e869ee8f3c3d	3960	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3961	int f_puts (
p07gbar	2:e869ee8f3c3d	3962	const TCHAR* str, /* Pointer to the string to be output */
p07gbar	2:e869ee8f3c3d	3963	FIL* fil /* Pointer to the file object */
p07gbar	2:e869ee8f3c3d	3964	)
p07gbar	2:e869ee8f3c3d	3965	{
p07gbar	2:e869ee8f3c3d	3966	int n;
p07gbar	2:e869ee8f3c3d	3967
p07gbar	2:e869ee8f3c3d	3968
p07gbar	2:e869ee8f3c3d	3969	for (n = 0; *str; str++, n++) {
p07gbar	2:e869ee8f3c3d	3970	if (f_putc(*str, fil) == EOF) return EOF;
p07gbar	2:e869ee8f3c3d	3971	}
p07gbar	2:e869ee8f3c3d	3972	return n;
p07gbar	2:e869ee8f3c3d	3973	}
p07gbar	2:e869ee8f3c3d	3974
p07gbar	2:e869ee8f3c3d	3975
p07gbar	2:e869ee8f3c3d	3976
p07gbar	2:e869ee8f3c3d	3977
p07gbar	2:e869ee8f3c3d	3978	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3979	/* Put a formatted string to the file */
p07gbar	2:e869ee8f3c3d	3980	/-----------------------------------------------------------------------/
p07gbar	2:e869ee8f3c3d	3981	int f_printf (
p07gbar	2:e869ee8f3c3d	3982	FIL* fil, /* Pointer to the file object */
p07gbar	2:e869ee8f3c3d	3983	const TCHAR* str, /* Pointer to the format string */
p07gbar	2:e869ee8f3c3d	3984	... /* Optional arguments... */
p07gbar	2:e869ee8f3c3d	3985	)
p07gbar	2:e869ee8f3c3d	3986	{
p07gbar	2:e869ee8f3c3d	3987	va_list arp;
p07gbar	2:e869ee8f3c3d	3988	BYTE f, r;
p07gbar	2:e869ee8f3c3d	3989	UINT i, j, w;
p07gbar	2:e869ee8f3c3d	3990	ULONG v;
p07gbar	2:e869ee8f3c3d	3991	TCHAR c, d, s[16], *p;
p07gbar	2:e869ee8f3c3d	3992	int res, chc, cc;
p07gbar	2:e869ee8f3c3d	3993
p07gbar	2:e869ee8f3c3d	3994
p07gbar	2:e869ee8f3c3d	3995	va_start(arp, str);
p07gbar	2:e869ee8f3c3d	3996
p07gbar	2:e869ee8f3c3d	3997	for (cc = res = 0; cc != EOF; res += cc) {
p07gbar	2:e869ee8f3c3d	3998	c = *str++;
p07gbar	2:e869ee8f3c3d	3999	if (c == 0) break; /* End of string */
p07gbar	2:e869ee8f3c3d	4000	if (c != '%') { /* Non escape character */
p07gbar	2:e869ee8f3c3d	4001	cc = f_putc(c, fil);
p07gbar	2:e869ee8f3c3d	4002	if (cc != EOF) cc = 1;
p07gbar	2:e869ee8f3c3d	4003	continue;
p07gbar	2:e869ee8f3c3d	4004	}
p07gbar	2:e869ee8f3c3d	4005	w = f = 0;
p07gbar	2:e869ee8f3c3d	4006	c = *str++;
p07gbar	2:e869ee8f3c3d	4007	if (c == '0') { /* Flag: '0' padding */
p07gbar	2:e869ee8f3c3d	4008	f = 1; c = *str++;
p07gbar	2:e869ee8f3c3d	4009	} else {
p07gbar	2:e869ee8f3c3d	4010	if (c == '-') { /* Flag: left justified */
p07gbar	2:e869ee8f3c3d	4011	f = 2; c = *str++;
p07gbar	2:e869ee8f3c3d	4012	}
p07gbar	2:e869ee8f3c3d	4013	}
p07gbar	2:e869ee8f3c3d	4014	while (IsDigit(c)) { /* Precision */
p07gbar	2:e869ee8f3c3d	4015	w = w * 10 + c - '0';
p07gbar	2:e869ee8f3c3d	4016	c = *str++;
p07gbar	2:e869ee8f3c3d	4017	}
p07gbar	2:e869ee8f3c3d	4018	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
p07gbar	2:e869ee8f3c3d	4019	f \|= 4; c = *str++;
p07gbar	2:e869ee8f3c3d	4020	}
p07gbar	2:e869ee8f3c3d	4021	if (!c) break;
p07gbar	2:e869ee8f3c3d	4022	d = c;
p07gbar	2:e869ee8f3c3d	4023	if (IsLower(d)) d -= 0x20;
p07gbar	2:e869ee8f3c3d	4024	switch (d) { /* Type is... */
p07gbar	2:e869ee8f3c3d	4025	case 'S' : /* String */
p07gbar	2:e869ee8f3c3d	4026	p = va_arg(arp, TCHAR*);
p07gbar	2:e869ee8f3c3d	4027	for (j = 0; p[j]; j++) ;
p07gbar	2:e869ee8f3c3d	4028	chc = 0;
p07gbar	2:e869ee8f3c3d	4029	if (!(f & 2)) {
p07gbar	2:e869ee8f3c3d	4030	while (j++ < w) chc += (cc = f_putc(' ', fil));
p07gbar	2:e869ee8f3c3d	4031	}
p07gbar	2:e869ee8f3c3d	4032	chc += (cc = f_puts(p, fil));
p07gbar	2:e869ee8f3c3d	4033	while (j++ < w) chc += (cc = f_putc(' ', fil));
p07gbar	2:e869ee8f3c3d	4034	if (cc != EOF) cc = chc;
p07gbar	2:e869ee8f3c3d	4035	continue;
p07gbar	2:e869ee8f3c3d	4036	case 'C' : /* Character */
p07gbar	2:e869ee8f3c3d	4037	cc = f_putc((TCHAR)va_arg(arp, int), fil); continue;
p07gbar	2:e869ee8f3c3d	4038	case 'B' : /* Binary */
p07gbar	2:e869ee8f3c3d	4039	r = 2; break;
p07gbar	2:e869ee8f3c3d	4040	case 'O' : /* Octal */
p07gbar	2:e869ee8f3c3d	4041	r = 8; break;
p07gbar	2:e869ee8f3c3d	4042	case 'D' : /* Signed decimal */
p07gbar	2:e869ee8f3c3d	4043	case 'U' : /* Unsigned decimal */
p07gbar	2:e869ee8f3c3d	4044	r = 10; break;
p07gbar	2:e869ee8f3c3d	4045	case 'X' : /* Hexdecimal */
p07gbar	2:e869ee8f3c3d	4046	r = 16; break;
p07gbar	2:e869ee8f3c3d	4047	default: /* Unknown type (passthrough) */
p07gbar	2:e869ee8f3c3d	4048	cc = f_putc(c, fil); continue;
p07gbar	2:e869ee8f3c3d	4049	}
p07gbar	2:e869ee8f3c3d	4050
p07gbar	2:e869ee8f3c3d	4051	/* Get an argument and put it in numeral */
p07gbar	2:e869ee8f3c3d	4052	v = (f & 4) ? (ULONG)va_arg(arp, long) : ((d == 'D') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int));
p07gbar	2:e869ee8f3c3d	4053	if (d == 'D' && (v & 0x80000000)) {
p07gbar	2:e869ee8f3c3d	4054	v = 0 - v;
p07gbar	2:e869ee8f3c3d	4055	f \|= 8;
p07gbar	2:e869ee8f3c3d	4056	}
p07gbar	2:e869ee8f3c3d	4057	i = 0;
p07gbar	2:e869ee8f3c3d	4058	do {
p07gbar	2:e869ee8f3c3d	4059	d = (TCHAR)(v % r); v /= r;
p07gbar	2:e869ee8f3c3d	4060	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
p07gbar	2:e869ee8f3c3d	4061	s[i++] = d + '0';
p07gbar	2:e869ee8f3c3d	4062	} while (v && i < sizeof(s) / sizeof(s[0]));
p07gbar	2:e869ee8f3c3d	4063	if (f & 8) s[i++] = '-';
p07gbar	2:e869ee8f3c3d	4064	j = i; d = (f & 1) ? '0' : ' ';
p07gbar	2:e869ee8f3c3d	4065	res = 0;
p07gbar	2:e869ee8f3c3d	4066	while (!(f & 2) && j++ < w) res += (cc = f_putc(d, fil));
p07gbar	2:e869ee8f3c3d	4067	do res += (cc = f_putc(s[--i], fil)); while(i);
p07gbar	2:e869ee8f3c3d	4068	while (j++ < w) res += (cc = f_putc(' ', fil));
p07gbar	2:e869ee8f3c3d	4069	if (cc != EOF) cc = res;
p07gbar	2:e869ee8f3c3d	4070	}
p07gbar	2:e869ee8f3c3d	4071
p07gbar	2:e869ee8f3c3d	4072	va_end(arp);
p07gbar	2:e869ee8f3c3d	4073	return (cc == EOF) ? cc : res;
p07gbar	2:e869ee8f3c3d	4074	}
p07gbar	2:e869ee8f3c3d	4075
p07gbar	2:e869ee8f3c3d	4076	#endif /* !_FS_READONLY */
p07gbar	2:e869ee8f3c3d	4077	#endif /* _USE_STRFUNC */

Repository toolbox

Export to desktop IDE

Repository details

Type:	Library
Created:	19 Sep 2012
Imports:	220
Forks:	0
Commits:	3
Dependents:	7
Dependencies:	0
Followers:	7

ff.cpp@2:e869ee8f3c3d, 2012-09-19 (annotated)

Who changed what in which revision?

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning