USBFileSystem

Users » k4zuki » Code » USBFileSystem

FATFileSystem/ChaN/ff.cpp@9:98a97b7d56a8, 2015-04-21 (annotated)

Committer:: k4zuki
Date:: Tue Apr 21 09:14:07 2015 +0000
Revision:: 9:98a97b7d56a8
Parent:: 7:da1f3328a496

update USBDevice

Who changed what in which revision?

User	Revision	Line number	New contents of line
Sissors	7:da1f3328a496	1	/*----------------------------------------------------------------------------/
Sissors	7:da1f3328a496	2	/ FatFs - FAT file system module R0.09a (C)ChaN, 2012
Sissors	7:da1f3328a496	3	/-----------------------------------------------------------------------------/
Sissors	7:da1f3328a496	4	/ FatFs module is a generic FAT file system module for small embedded systems.
Sissors	7:da1f3328a496	5	/ This is a free software that opened for education, research and commercial
Sissors	7:da1f3328a496	6	/ developments under license policy of following terms.
Sissors	7:da1f3328a496	7	/
Sissors	7:da1f3328a496	8	/ Copyright (C) 2012, ChaN, all right reserved.
Sissors	7:da1f3328a496	9	/
Sissors	7:da1f3328a496	10	/ * The FatFs module is a free software and there is NO WARRANTY.
Sissors	7:da1f3328a496	11	/ * No restriction on use. You can use, modify and redistribute it for
Sissors	7:da1f3328a496	12	/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
Sissors	7:da1f3328a496	13	/ * Redistributions of source code must retain the above copyright notice.
Sissors	7:da1f3328a496	14	/
Sissors	7:da1f3328a496	15	/-----------------------------------------------------------------------------/
Sissors	7:da1f3328a496	16	/ Feb 26,'06 R0.00 Prototype.
Sissors	7:da1f3328a496	17	/
Sissors	7:da1f3328a496	18	/ Apr 29,'06 R0.01 First stable version.
Sissors	7:da1f3328a496	19	/
Sissors	7:da1f3328a496	20	/ Jun 01,'06 R0.02 Added FAT12 support.
Sissors	7:da1f3328a496	21	/ Removed unbuffered mode.
Sissors	7:da1f3328a496	22	/ Fixed a problem on small (<32M) partition.
Sissors	7:da1f3328a496	23	/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
Sissors	7:da1f3328a496	24	/
Sissors	7:da1f3328a496	25	/ Sep 22,'06 R0.03 Added f_rename().
Sissors	7:da1f3328a496	26	/ Changed option _FS_MINIMUM to _FS_MINIMIZE.
Sissors	7:da1f3328a496	27	/ Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
Sissors	7:da1f3328a496	28	/ Fixed f_mkdir() creates incorrect directory on FAT32.
Sissors	7:da1f3328a496	29	/
Sissors	7:da1f3328a496	30	/ Feb 04,'07 R0.04 Supported multiple drive system.
Sissors	7:da1f3328a496	31	/ Changed some interfaces for multiple drive system.
Sissors	7:da1f3328a496	32	/ Changed f_mountdrv() to f_mount().
Sissors	7:da1f3328a496	33	/ Added f_mkfs().
Sissors	7:da1f3328a496	34	/ Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
Sissors	7:da1f3328a496	35	/ Added a capability of extending file size to f_lseek().
Sissors	7:da1f3328a496	36	/ Added minimization level 3.
Sissors	7:da1f3328a496	37	/ Fixed an endian sensitive code in f_mkfs().
Sissors	7:da1f3328a496	38	/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
Sissors	7:da1f3328a496	39	/ Added FSInfo support.
Sissors	7:da1f3328a496	40	/ Fixed DBCS name can result FR_INVALID_NAME.
Sissors	7:da1f3328a496	41	/ Fixed short seek (<= csize) collapses the file object.
Sissors	7:da1f3328a496	42	/
Sissors	7:da1f3328a496	43	/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
Sissors	7:da1f3328a496	44	/ Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
Sissors	7:da1f3328a496	45	/ Fixed f_mkdir() on FAT32 creates incorrect directory.
Sissors	7:da1f3328a496	46	/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
Sissors	7:da1f3328a496	47	/ Fixed off by one error at FAT sub-type determination.
Sissors	7:da1f3328a496	48	/ Fixed btr in f_read() can be mistruncated.
Sissors	7:da1f3328a496	49	/ Fixed cached sector is not flushed when create and close without write.
Sissors	7:da1f3328a496	50	/
Sissors	7:da1f3328a496	51	/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
Sissors	7:da1f3328a496	52	/ Improved performance of f_lseek() on moving to the same or following cluster.
Sissors	7:da1f3328a496	53	/
Sissors	7:da1f3328a496	54	/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
Sissors	7:da1f3328a496	55	/ Added long file name feature.
Sissors	7:da1f3328a496	56	/ Added multiple code page feature.
Sissors	7:da1f3328a496	57	/ Added re-entrancy for multitask operation.
Sissors	7:da1f3328a496	58	/ Added auto cluster size selection to f_mkfs().
Sissors	7:da1f3328a496	59	/ Added rewind option to f_readdir().
Sissors	7:da1f3328a496	60	/ Changed result code of critical errors.
Sissors	7:da1f3328a496	61	/ Renamed string functions to avoid name collision.
Sissors	7:da1f3328a496	62	/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
Sissors	7:da1f3328a496	63	/ Added multiple sector size feature.
Sissors	7:da1f3328a496	64	/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
Sissors	7:da1f3328a496	65	/ Fixed wrong cache control in f_lseek().
Sissors	7:da1f3328a496	66	/ Added relative path feature.
Sissors	7:da1f3328a496	67	/ Added f_chdir() and f_chdrive().
Sissors	7:da1f3328a496	68	/ Added proper case conversion to extended char.
Sissors	7:da1f3328a496	69	/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
Sissors	7:da1f3328a496	70	/ Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
Sissors	7:da1f3328a496	71	/ Fixed name matching error on the 13 char boundary.
Sissors	7:da1f3328a496	72	/ Added a configuration option, _LFN_UNICODE.
Sissors	7:da1f3328a496	73	/ Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
Sissors	7:da1f3328a496	74	/
Sissors	7:da1f3328a496	75	/ May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
Sissors	7:da1f3328a496	76	/ Added file lock feature. (_FS_SHARE)
Sissors	7:da1f3328a496	77	/ Added fast seek feature. (_USE_FASTSEEK)
Sissors	7:da1f3328a496	78	/ Changed some types on the API, XCHAR->TCHAR.
Sissors	7:da1f3328a496	79	/ Changed fname member in the FILINFO structure on Unicode cfg.
Sissors	7:da1f3328a496	80	/ String functions support UTF-8 encoding files on Unicode cfg.
Sissors	7:da1f3328a496	81	/ Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
Sissors	7:da1f3328a496	82	/ Added sector erase feature. (_USE_ERASE)
Sissors	7:da1f3328a496	83	/ Moved file lock semaphore table from fs object to the bss.
Sissors	7:da1f3328a496	84	/ Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
Sissors	7:da1f3328a496	85	/ Fixed f_mkfs() creates wrong FAT32 volume.
Sissors	7:da1f3328a496	86	/ Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
Sissors	7:da1f3328a496	87	/ f_lseek() reports required table size on creating CLMP.
Sissors	7:da1f3328a496	88	/ Extended format syntax of f_printf function.
Sissors	7:da1f3328a496	89	/ Ignores duplicated directory separators in given path name.
Sissors	7:da1f3328a496	90	/
Sissors	7:da1f3328a496	91	/ Sep 06,'11 R0.09 f_mkfs() supports multiple partition to finish the multiple partition feature.
Sissors	7:da1f3328a496	92	/ Added f_fdisk(). (_MULTI_PARTITION = 2)
Sissors	7:da1f3328a496	93	/ Aug 27,'12 R0.09a Fixed assertion failure due to OS/2 EA on FAT12/16 volume.
Sissors	7:da1f3328a496	94	/ Changed f_open() and f_opendir reject null object pointer to avoid crash.
Sissors	7:da1f3328a496	95	/ Changed option name _FS_SHARE to _FS_LOCK.
Sissors	7:da1f3328a496	96	/---------------------------------------------------------------------------*/
Sissors	7:da1f3328a496	97
Sissors	7:da1f3328a496	98	#include "ff.h" /* FatFs configurations and declarations */
Sissors	7:da1f3328a496	99	#include "diskio.h" /* Declarations of low level disk I/O functions */
Sissors	7:da1f3328a496	100
Sissors	7:da1f3328a496	101
Sissors	7:da1f3328a496	102	/*--------------------------------------------------------------------------
Sissors	7:da1f3328a496	103
Sissors	7:da1f3328a496	104	Module Private Definitions
Sissors	7:da1f3328a496	105
Sissors	7:da1f3328a496	106	---------------------------------------------------------------------------*/
Sissors	7:da1f3328a496	107
Sissors	7:da1f3328a496	108	#if _FATFS != 4004 /* Revision ID */
Sissors	7:da1f3328a496	109	#error Wrong include file (ff.h).
Sissors	7:da1f3328a496	110	#endif
Sissors	7:da1f3328a496	111
Sissors	7:da1f3328a496	112
Sissors	7:da1f3328a496	113	/* Definitions on sector size */
Sissors	7:da1f3328a496	114	#if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
Sissors	7:da1f3328a496	115	#error Wrong sector size.
Sissors	7:da1f3328a496	116	#endif
Sissors	7:da1f3328a496	117	#if _MAX_SS != 512
Sissors	7:da1f3328a496	118	#define SS(fs) ((fs)->ssize) /* Variable sector size */
Sissors	7:da1f3328a496	119	#else
Sissors	7:da1f3328a496	120	#define SS(fs) 512U /* Fixed sector size */
Sissors	7:da1f3328a496	121	#endif
Sissors	7:da1f3328a496	122
Sissors	7:da1f3328a496	123
Sissors	7:da1f3328a496	124	/* Reentrancy related */
Sissors	7:da1f3328a496	125	#if _FS_REENTRANT
Sissors	7:da1f3328a496	126	#if _USE_LFN == 1
Sissors	7:da1f3328a496	127	#error Static LFN work area must not be used in re-entrant configuration.
Sissors	7:da1f3328a496	128	#endif
Sissors	7:da1f3328a496	129	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
Sissors	7:da1f3328a496	130	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
Sissors	7:da1f3328a496	131	#else
Sissors	7:da1f3328a496	132	#define ENTER_FF(fs)
Sissors	7:da1f3328a496	133	#define LEAVE_FF(fs, res) return res
Sissors	7:da1f3328a496	134	#endif
Sissors	7:da1f3328a496	135
Sissors	7:da1f3328a496	136	#define ABORT(fs, res) { fp->flag \|= FA__ERROR; LEAVE_FF(fs, res); }
Sissors	7:da1f3328a496	137
Sissors	7:da1f3328a496	138
Sissors	7:da1f3328a496	139	/* File access control feature */
Sissors	7:da1f3328a496	140	#if _FS_LOCK
Sissors	7:da1f3328a496	141	#if _FS_READONLY
Sissors	7:da1f3328a496	142	#error _FS_LOCK must be 0 on read-only cfg.
Sissors	7:da1f3328a496	143	#endif
Sissors	7:da1f3328a496	144	typedef struct {
Sissors	7:da1f3328a496	145	FATFS fs; / File ID 1, volume (NULL:blank entry) */
Sissors	7:da1f3328a496	146	DWORD clu; /* File ID 2, directory */
Sissors	7:da1f3328a496	147	WORD idx; /* File ID 3, directory index */
Sissors	7:da1f3328a496	148	WORD ctr; /* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:write mode */
Sissors	7:da1f3328a496	149	} FILESEM;
Sissors	7:da1f3328a496	150	#endif
Sissors	7:da1f3328a496	151
Sissors	7:da1f3328a496	152
Sissors	7:da1f3328a496	153
Sissors	7:da1f3328a496	154	/* DBCS code ranges and SBCS extend char conversion table */
Sissors	7:da1f3328a496	155
Sissors	7:da1f3328a496	156	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
Sissors	7:da1f3328a496	157	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
Sissors	7:da1f3328a496	158	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
Sissors	7:da1f3328a496	159	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
Sissors	7:da1f3328a496	160	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
Sissors	7:da1f3328a496	161	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
Sissors	7:da1f3328a496	162	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
Sissors	7:da1f3328a496	163	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
Sissors	7:da1f3328a496	164	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
Sissors	7:da1f3328a496	165
Sissors	7:da1f3328a496	166	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
Sissors	7:da1f3328a496	167	#define _DF1S 0x81
Sissors	7:da1f3328a496	168	#define _DF1E 0xFE
Sissors	7:da1f3328a496	169	#define _DS1S 0x40
Sissors	7:da1f3328a496	170	#define _DS1E 0x7E
Sissors	7:da1f3328a496	171	#define _DS2S 0x80
Sissors	7:da1f3328a496	172	#define _DS2E 0xFE
Sissors	7:da1f3328a496	173
Sissors	7:da1f3328a496	174	#elif _CODE_PAGE == 949 /* Korean */
Sissors	7:da1f3328a496	175	#define _DF1S 0x81
Sissors	7:da1f3328a496	176	#define _DF1E 0xFE
Sissors	7:da1f3328a496	177	#define _DS1S 0x41
Sissors	7:da1f3328a496	178	#define _DS1E 0x5A
Sissors	7:da1f3328a496	179	#define _DS2S 0x61
Sissors	7:da1f3328a496	180	#define _DS2E 0x7A
Sissors	7:da1f3328a496	181	#define _DS3S 0x81
Sissors	7:da1f3328a496	182	#define _DS3E 0xFE
Sissors	7:da1f3328a496	183
Sissors	7:da1f3328a496	184	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
Sissors	7:da1f3328a496	185	#define _DF1S 0x81
Sissors	7:da1f3328a496	186	#define _DF1E 0xFE
Sissors	7:da1f3328a496	187	#define _DS1S 0x40
Sissors	7:da1f3328a496	188	#define _DS1E 0x7E
Sissors	7:da1f3328a496	189	#define _DS2S 0xA1
Sissors	7:da1f3328a496	190	#define _DS2E 0xFE
Sissors	7:da1f3328a496	191
Sissors	7:da1f3328a496	192	#elif _CODE_PAGE == 437 /* U.S. (OEM) */
Sissors	7:da1f3328a496	193	#define _DF1S 0
Sissors	7:da1f3328a496	194	#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, \
Sissors	7:da1f3328a496	195	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, \
Sissors	7:da1f3328a496	196	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, \
Sissors	7:da1f3328a496	197	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}
Sissors	7:da1f3328a496	198
Sissors	7:da1f3328a496	199	#elif _CODE_PAGE == 720 /* Arabic (OEM) */
Sissors	7:da1f3328a496	200	#define _DF1S 0
Sissors	7:da1f3328a496	201	#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, \
Sissors	7:da1f3328a496	202	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, \
Sissors	7:da1f3328a496	203	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, \
Sissors	7:da1f3328a496	204	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}
Sissors	7:da1f3328a496	205
Sissors	7:da1f3328a496	206	#elif _CODE_PAGE == 737 /* Greek (OEM) */
Sissors	7:da1f3328a496	207	#define _DF1S 0
Sissors	7:da1f3328a496	208	#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, \
Sissors	7:da1f3328a496	209	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, \
Sissors	7:da1f3328a496	210	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, \
Sissors	7:da1f3328a496	211	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}
Sissors	7:da1f3328a496	212
Sissors	7:da1f3328a496	213	#elif _CODE_PAGE == 775 /* Baltic (OEM) */
Sissors	7:da1f3328a496	214	#define _DF1S 0
Sissors	7:da1f3328a496	215	#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, \
Sissors	7:da1f3328a496	216	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, \
Sissors	7:da1f3328a496	217	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, \
Sissors	7:da1f3328a496	218	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}
Sissors	7:da1f3328a496	219
Sissors	7:da1f3328a496	220	#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
Sissors	7:da1f3328a496	221	#define _DF1S 0
Sissors	7:da1f3328a496	222	#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, \
Sissors	7:da1f3328a496	223	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, \
Sissors	7:da1f3328a496	224	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, \
Sissors	7:da1f3328a496	225	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}
Sissors	7:da1f3328a496	226
Sissors	7:da1f3328a496	227	#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
Sissors	7:da1f3328a496	228	#define _DF1S 0
Sissors	7:da1f3328a496	229	#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, \
Sissors	7:da1f3328a496	230	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, \
Sissors	7:da1f3328a496	231	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, \
Sissors	7:da1f3328a496	232	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}
Sissors	7:da1f3328a496	233
Sissors	7:da1f3328a496	234	#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
Sissors	7:da1f3328a496	235	#define _DF1S 0
Sissors	7:da1f3328a496	236	#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, \
Sissors	7:da1f3328a496	237	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, \
Sissors	7:da1f3328a496	238	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, \
Sissors	7:da1f3328a496	239	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}
Sissors	7:da1f3328a496	240
Sissors	7:da1f3328a496	241	#elif _CODE_PAGE == 857 /* Turkish (OEM) */
Sissors	7:da1f3328a496	242	#define _DF1S 0
Sissors	7:da1f3328a496	243	#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, \
Sissors	7:da1f3328a496	244	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, \
Sissors	7:da1f3328a496	245	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, \
Sissors	7:da1f3328a496	246	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}
Sissors	7:da1f3328a496	247
Sissors	7:da1f3328a496	248	#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
Sissors	7:da1f3328a496	249	#define _DF1S 0
Sissors	7:da1f3328a496	250	#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, \
Sissors	7:da1f3328a496	251	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, \
Sissors	7:da1f3328a496	252	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, \
Sissors	7:da1f3328a496	253	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}
Sissors	7:da1f3328a496	254
Sissors	7:da1f3328a496	255	#elif _CODE_PAGE == 862 /* Hebrew (OEM) */
Sissors	7:da1f3328a496	256	#define _DF1S 0
Sissors	7:da1f3328a496	257	#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, \
Sissors	7:da1f3328a496	258	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, \
Sissors	7:da1f3328a496	259	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, \
Sissors	7:da1f3328a496	260	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}
Sissors	7:da1f3328a496	261
Sissors	7:da1f3328a496	262	#elif _CODE_PAGE == 866 /* Russian (OEM) */
Sissors	7:da1f3328a496	263	#define _DF1S 0
Sissors	7:da1f3328a496	264	#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, \
Sissors	7:da1f3328a496	265	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, \
Sissors	7:da1f3328a496	266	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, \
Sissors	7:da1f3328a496	267	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}
Sissors	7:da1f3328a496	268
Sissors	7:da1f3328a496	269	#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
Sissors	7:da1f3328a496	270	#define _DF1S 0
Sissors	7:da1f3328a496	271	#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, \
Sissors	7:da1f3328a496	272	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, \
Sissors	7:da1f3328a496	273	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, \
Sissors	7:da1f3328a496	274	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}
Sissors	7:da1f3328a496	275
Sissors	7:da1f3328a496	276	#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
Sissors	7:da1f3328a496	277	#define _DF1S 0
Sissors	7:da1f3328a496	278	#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, \
Sissors	7:da1f3328a496	279	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, \
Sissors	7:da1f3328a496	280	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, \
Sissors	7:da1f3328a496	281	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}
Sissors	7:da1f3328a496	282
Sissors	7:da1f3328a496	283	#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
Sissors	7:da1f3328a496	284	#define _DF1S 0
Sissors	7:da1f3328a496	285	#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, \
Sissors	7:da1f3328a496	286	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, \
Sissors	7:da1f3328a496	287	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, \
Sissors	7:da1f3328a496	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}
Sissors	7:da1f3328a496	289
Sissors	7:da1f3328a496	290	#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
Sissors	7:da1f3328a496	291	#define _DF1S 0
Sissors	7:da1f3328a496	292	#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, \
Sissors	7:da1f3328a496	293	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, \
Sissors	7:da1f3328a496	294	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, \
Sissors	7:da1f3328a496	295	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}
Sissors	7:da1f3328a496	296
Sissors	7:da1f3328a496	297	#elif _CODE_PAGE == 1253 /* Greek (Windows) */
Sissors	7:da1f3328a496	298	#define _DF1S 0
Sissors	7:da1f3328a496	299	#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, \
Sissors	7:da1f3328a496	300	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, \
Sissors	7:da1f3328a496	301	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, \
Sissors	7:da1f3328a496	302	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}
Sissors	7:da1f3328a496	303
Sissors	7:da1f3328a496	304	#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
Sissors	7:da1f3328a496	305	#define _DF1S 0
Sissors	7:da1f3328a496	306	#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, \
Sissors	7:da1f3328a496	307	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, \
Sissors	7:da1f3328a496	308	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, \
Sissors	7:da1f3328a496	309	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}
Sissors	7:da1f3328a496	310
Sissors	7:da1f3328a496	311	#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
Sissors	7:da1f3328a496	312	#define _DF1S 0
Sissors	7:da1f3328a496	313	#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, \
Sissors	7:da1f3328a496	314	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, \
Sissors	7:da1f3328a496	315	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, \
Sissors	7:da1f3328a496	316	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}
Sissors	7:da1f3328a496	317
Sissors	7:da1f3328a496	318	#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
Sissors	7:da1f3328a496	319	#define _DF1S 0
Sissors	7:da1f3328a496	320	#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, \
Sissors	7:da1f3328a496	321	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, \
Sissors	7:da1f3328a496	322	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, \
Sissors	7:da1f3328a496	323	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}
Sissors	7:da1f3328a496	324
Sissors	7:da1f3328a496	325	#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
Sissors	7:da1f3328a496	326	#define _DF1S 0
Sissors	7:da1f3328a496	327	#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, \
Sissors	7:da1f3328a496	328	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, \
Sissors	7:da1f3328a496	329	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, \
Sissors	7:da1f3328a496	330	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}
Sissors	7:da1f3328a496	331
Sissors	7:da1f3328a496	332	#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
Sissors	7:da1f3328a496	333	#define _DF1S 0
Sissors	7:da1f3328a496	334	#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, \
Sissors	7:da1f3328a496	335	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, \
Sissors	7:da1f3328a496	336	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, \
Sissors	7:da1f3328a496	337	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}
Sissors	7:da1f3328a496	338
Sissors	7:da1f3328a496	339	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
Sissors	7:da1f3328a496	340	#if _USE_LFN
Sissors	7:da1f3328a496	341	#error Cannot use LFN feature without valid code page.
Sissors	7:da1f3328a496	342	#endif
Sissors	7:da1f3328a496	343	#define _DF1S 0
Sissors	7:da1f3328a496	344
Sissors	7:da1f3328a496	345	#else
Sissors	7:da1f3328a496	346	#error Unknown code page
Sissors	7:da1f3328a496	347
Sissors	7:da1f3328a496	348	#endif
Sissors	7:da1f3328a496	349
Sissors	7:da1f3328a496	350
Sissors	7:da1f3328a496	351	/* Character code support macros */
Sissors	7:da1f3328a496	352	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
Sissors	7:da1f3328a496	353	#define IsLower(c) (((c)>='a')&&((c)<='z'))
Sissors	7:da1f3328a496	354	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
Sissors	7:da1f3328a496	355
Sissors	7:da1f3328a496	356	#if _DF1S /* Code page is DBCS */
Sissors	7:da1f3328a496	357
Sissors	7:da1f3328a496	358	#ifdef _DF2S /* Two 1st byte areas */
Sissors	7:da1f3328a496	359	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
Sissors	7:da1f3328a496	360	#else /* One 1st byte area */
Sissors	7:da1f3328a496	361	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
Sissors	7:da1f3328a496	362	#endif
Sissors	7:da1f3328a496	363
Sissors	7:da1f3328a496	364	#ifdef _DS3S /* Three 2nd byte areas */
Sissors	7:da1f3328a496	365	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
Sissors	7:da1f3328a496	366	#else /* Two 2nd byte areas */
Sissors	7:da1f3328a496	367	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
Sissors	7:da1f3328a496	368	#endif
Sissors	7:da1f3328a496	369
Sissors	7:da1f3328a496	370	#else /* Code page is SBCS */
Sissors	7:da1f3328a496	371
Sissors	7:da1f3328a496	372	#define IsDBCS1(c) 0
Sissors	7:da1f3328a496	373	#define IsDBCS2(c) 0
Sissors	7:da1f3328a496	374
Sissors	7:da1f3328a496	375	#endif /* _DF1S */
Sissors	7:da1f3328a496	376
Sissors	7:da1f3328a496	377
Sissors	7:da1f3328a496	378	/* Name status flags */
Sissors	7:da1f3328a496	379	#define NS 11 /* Index of name status byte in fn[] */
Sissors	7:da1f3328a496	380	#define NS_LOSS 0x01 /* Out of 8.3 format */
Sissors	7:da1f3328a496	381	#define NS_LFN 0x02 /* Force to create LFN entry */
Sissors	7:da1f3328a496	382	#define NS_LAST 0x04 /* Last segment */
Sissors	7:da1f3328a496	383	#define NS_BODY 0x08 /* Lower case flag (body) */
Sissors	7:da1f3328a496	384	#define NS_EXT 0x10 /* Lower case flag (ext) */
Sissors	7:da1f3328a496	385	#define NS_DOT 0x20 /* Dot entry */
Sissors	7:da1f3328a496	386
Sissors	7:da1f3328a496	387
Sissors	7:da1f3328a496	388	/* FAT sub-type boundaries */
Sissors	7:da1f3328a496	389	/* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */
Sissors	7:da1f3328a496	390	#define MIN_FAT16 4086 /* Minimum number of clusters for FAT16 */
Sissors	7:da1f3328a496	391	#define MIN_FAT32 65526 /* Minimum number of clusters for FAT32 */
Sissors	7:da1f3328a496	392
Sissors	7:da1f3328a496	393
Sissors	7:da1f3328a496	394	/* FatFs refers the members in the FAT structures as byte array instead of
Sissors	7:da1f3328a496	395	/ structure member because the structure is not binary compatible between
Sissors	7:da1f3328a496	396	/ different platforms */
Sissors	7:da1f3328a496	397
Sissors	7:da1f3328a496	398	#define BS_jmpBoot 0 /* Jump instruction (3) */
Sissors	7:da1f3328a496	399	#define BS_OEMName 3 /* OEM name (8) */
Sissors	7:da1f3328a496	400	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
Sissors	7:da1f3328a496	401	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
Sissors	7:da1f3328a496	402	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
Sissors	7:da1f3328a496	403	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
Sissors	7:da1f3328a496	404	#define BPB_RootEntCnt 17 /* Number of root dir entries for FAT12/16 (2) */
Sissors	7:da1f3328a496	405	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
Sissors	7:da1f3328a496	406	#define BPB_Media 21 /* Media descriptor (1) */
Sissors	7:da1f3328a496	407	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
Sissors	7:da1f3328a496	408	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
Sissors	7:da1f3328a496	409	#define BPB_NumHeads 26 /* Number of heads (2) */
Sissors	7:da1f3328a496	410	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
Sissors	7:da1f3328a496	411	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
Sissors	7:da1f3328a496	412	#define BS_DrvNum 36 /* Physical drive number (2) */
Sissors	7:da1f3328a496	413	#define BS_BootSig 38 /* Extended boot signature (1) */
Sissors	7:da1f3328a496	414	#define BS_VolID 39 /* Volume serial number (4) */
Sissors	7:da1f3328a496	415	#define BS_VolLab 43 /* Volume label (8) */
Sissors	7:da1f3328a496	416	#define BS_FilSysType 54 /* File system type (1) */
Sissors	7:da1f3328a496	417	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
Sissors	7:da1f3328a496	418	#define BPB_ExtFlags 40 /* Extended flags (2) */
Sissors	7:da1f3328a496	419	#define BPB_FSVer 42 /* File system version (2) */
Sissors	7:da1f3328a496	420	#define BPB_RootClus 44 /* Root dir first cluster (4) */
Sissors	7:da1f3328a496	421	#define BPB_FSInfo 48 /* Offset of FSInfo sector (2) */
Sissors	7:da1f3328a496	422	#define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
Sissors	7:da1f3328a496	423	#define BS_DrvNum32 64 /* Physical drive number (2) */
Sissors	7:da1f3328a496	424	#define BS_BootSig32 66 /* Extended boot signature (1) */
Sissors	7:da1f3328a496	425	#define BS_VolID32 67 /* Volume serial number (4) */
Sissors	7:da1f3328a496	426	#define BS_VolLab32 71 /* Volume label (8) */
Sissors	7:da1f3328a496	427	#define BS_FilSysType32 82 /* File system type (1) */
Sissors	7:da1f3328a496	428	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
Sissors	7:da1f3328a496	429	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
Sissors	7:da1f3328a496	430	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
Sissors	7:da1f3328a496	431	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
Sissors	7:da1f3328a496	432	#define MBR_Table 446 /* MBR: Partition table offset (2) */
Sissors	7:da1f3328a496	433	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
Sissors	7:da1f3328a496	434	#define BS_55AA 510 /* Boot sector signature (2) */
Sissors	7:da1f3328a496	435
Sissors	7:da1f3328a496	436	#define DIR_Name 0 /* Short file name (11) */
Sissors	7:da1f3328a496	437	#define DIR_Attr 11 /* Attribute (1) */
Sissors	7:da1f3328a496	438	#define DIR_NTres 12 /* NT flag (1) */
Sissors	7:da1f3328a496	439	#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
Sissors	7:da1f3328a496	440	#define DIR_CrtTime 14 /* Created time (2) */
Sissors	7:da1f3328a496	441	#define DIR_CrtDate 16 /* Created date (2) */
Sissors	7:da1f3328a496	442	#define DIR_LstAccDate 18 /* Last accessed date (2) */
Sissors	7:da1f3328a496	443	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
Sissors	7:da1f3328a496	444	#define DIR_WrtTime 22 /* Modified time (2) */
Sissors	7:da1f3328a496	445	#define DIR_WrtDate 24 /* Modified date (2) */
Sissors	7:da1f3328a496	446	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
Sissors	7:da1f3328a496	447	#define DIR_FileSize 28 /* File size (4) */
Sissors	7:da1f3328a496	448	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
Sissors	7:da1f3328a496	449	#define LDIR_Attr 11 /* LFN attribute (1) */
Sissors	7:da1f3328a496	450	#define LDIR_Type 12 /* LFN type (1) */
Sissors	7:da1f3328a496	451	#define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
Sissors	7:da1f3328a496	452	#define LDIR_FstClusLO 26 /* Filled by zero (0) */
Sissors	7:da1f3328a496	453	#define SZ_DIR 32 /* Size of a directory entry */
Sissors	7:da1f3328a496	454	#define LLE 0x40 /* Last long entry flag in LDIR_Ord */
Sissors	7:da1f3328a496	455	#define DDE 0xE5 /* Deleted directory entry mark in DIR_Name[0] */
Sissors	7:da1f3328a496	456	#define NDDE 0x05 /* Replacement of the character collides with DDE */
Sissors	7:da1f3328a496	457
Sissors	7:da1f3328a496	458
Sissors	7:da1f3328a496	459	/------------------------------------------------------------/
Sissors	7:da1f3328a496	460	/* Module private work area */
Sissors	7:da1f3328a496	461	/------------------------------------------------------------/
Sissors	7:da1f3328a496	462	/* Note that uninitialized variables with static duration are
Sissors	7:da1f3328a496	463	/ zeroed/nulled at start-up. If not, the compiler or start-up
Sissors	7:da1f3328a496	464	/ routine is out of ANSI-C standard.
Sissors	7:da1f3328a496	465	*/
Sissors	7:da1f3328a496	466
Sissors	7:da1f3328a496	467	#if _VOLUMES
Sissors	7:da1f3328a496	468	static
Sissors	7:da1f3328a496	469	FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
Sissors	7:da1f3328a496	470	#else
Sissors	7:da1f3328a496	471	#error Number of volumes must not be 0.
Sissors	7:da1f3328a496	472	#endif
Sissors	7:da1f3328a496	473
Sissors	7:da1f3328a496	474	static
Sissors	7:da1f3328a496	475	WORD Fsid; /* File system mount ID */
Sissors	7:da1f3328a496	476
Sissors	7:da1f3328a496	477	#if _FS_RPATH
Sissors	7:da1f3328a496	478	static
Sissors	7:da1f3328a496	479	BYTE CurrVol; /* Current drive */
Sissors	7:da1f3328a496	480	#endif
Sissors	7:da1f3328a496	481
Sissors	7:da1f3328a496	482	#if _FS_LOCK
Sissors	7:da1f3328a496	483	static
Sissors	7:da1f3328a496	484	FILESEM Files[_FS_LOCK]; /* File lock semaphores */
Sissors	7:da1f3328a496	485	#endif
Sissors	7:da1f3328a496	486
Sissors	7:da1f3328a496	487	#if _USE_LFN == 0 /* No LFN feature */
Sissors	7:da1f3328a496	488	#define DEF_NAMEBUF BYTE sfn[12]
Sissors	7:da1f3328a496	489	#define INIT_BUF(dobj) (dobj).fn = sfn
Sissors	7:da1f3328a496	490	#define FREE_BUF()
Sissors	7:da1f3328a496	491
Sissors	7:da1f3328a496	492	#elif _USE_LFN == 1 /* LFN feature with static working buffer */
Sissors	7:da1f3328a496	493	static WCHAR LfnBuf[_MAX_LFN+1];
Sissors	7:da1f3328a496	494	#define DEF_NAMEBUF BYTE sfn[12]
Sissors	7:da1f3328a496	495	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
Sissors	7:da1f3328a496	496	#define FREE_BUF()
Sissors	7:da1f3328a496	497
Sissors	7:da1f3328a496	498	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
Sissors	7:da1f3328a496	499	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
Sissors	7:da1f3328a496	500	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
Sissors	7:da1f3328a496	501	#define FREE_BUF()
Sissors	7:da1f3328a496	502
Sissors	7:da1f3328a496	503	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
Sissors	7:da1f3328a496	504	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
Sissors	7:da1f3328a496	505	#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
Sissors	7:da1f3328a496	506	if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
Sissors	7:da1f3328a496	507	(dobj).lfn = lfn; (dobj).fn = sfn; }
Sissors	7:da1f3328a496	508	#define FREE_BUF() ff_memfree(lfn)
Sissors	7:da1f3328a496	509
Sissors	7:da1f3328a496	510	#else
Sissors	7:da1f3328a496	511	#error Wrong LFN configuration.
Sissors	7:da1f3328a496	512	#endif
Sissors	7:da1f3328a496	513
Sissors	7:da1f3328a496	514
Sissors	7:da1f3328a496	515
Sissors	7:da1f3328a496	516
Sissors	7:da1f3328a496	517	/*--------------------------------------------------------------------------
Sissors	7:da1f3328a496	518
Sissors	7:da1f3328a496	519	Module Private Functions
Sissors	7:da1f3328a496	520
Sissors	7:da1f3328a496	521	---------------------------------------------------------------------------*/
Sissors	7:da1f3328a496	522
Sissors	7:da1f3328a496	523
Sissors	7:da1f3328a496	524	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	525	/* String functions */
Sissors	7:da1f3328a496	526	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	527
Sissors	7:da1f3328a496	528	/* Copy memory to memory */
Sissors	7:da1f3328a496	529	static
Sissors	7:da1f3328a496	530	void mem_cpy (void* dst, const void* src, UINT cnt) {
Sissors	7:da1f3328a496	531	BYTE d = (BYTE)dst;
Sissors	7:da1f3328a496	532	const BYTE s = (const BYTE)src;
Sissors	7:da1f3328a496	533
Sissors	7:da1f3328a496	534	#if _WORD_ACCESS == 1
Sissors	7:da1f3328a496	535	while (cnt >= sizeof (int)) {
Sissors	7:da1f3328a496	536	(int)d = (int)s;
Sissors	7:da1f3328a496	537	d += sizeof (int); s += sizeof (int);
Sissors	7:da1f3328a496	538	cnt -= sizeof (int);
Sissors	7:da1f3328a496	539	}
Sissors	7:da1f3328a496	540	#endif
Sissors	7:da1f3328a496	541	while (cnt--)
Sissors	7:da1f3328a496	542	d++ = s++;
Sissors	7:da1f3328a496	543	}
Sissors	7:da1f3328a496	544
Sissors	7:da1f3328a496	545	/* Fill memory */
Sissors	7:da1f3328a496	546	static
Sissors	7:da1f3328a496	547	void mem_set (void* dst, int val, UINT cnt) {
Sissors	7:da1f3328a496	548	BYTE d = (BYTE)dst;
Sissors	7:da1f3328a496	549
Sissors	7:da1f3328a496	550	while (cnt--)
Sissors	7:da1f3328a496	551	*d++ = (BYTE)val;
Sissors	7:da1f3328a496	552	}
Sissors	7:da1f3328a496	553
Sissors	7:da1f3328a496	554	/* Compare memory to memory */
Sissors	7:da1f3328a496	555	static
Sissors	7:da1f3328a496	556	int mem_cmp (const void* dst, const void* src, UINT cnt) {
Sissors	7:da1f3328a496	557	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
Sissors	7:da1f3328a496	558	int r = 0;
Sissors	7:da1f3328a496	559
Sissors	7:da1f3328a496	560	while (cnt-- && (r = d++ - s++) == 0) ;
Sissors	7:da1f3328a496	561	return r;
Sissors	7:da1f3328a496	562	}
Sissors	7:da1f3328a496	563
Sissors	7:da1f3328a496	564	/* Check if chr is contained in the string */
Sissors	7:da1f3328a496	565	static
Sissors	7:da1f3328a496	566	int chk_chr (const char* str, int chr) {
Sissors	7:da1f3328a496	567	while (str && str != chr) str++;
Sissors	7:da1f3328a496	568	return *str;
Sissors	7:da1f3328a496	569	}
Sissors	7:da1f3328a496	570
Sissors	7:da1f3328a496	571
Sissors	7:da1f3328a496	572
Sissors	7:da1f3328a496	573	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	574	/* Request/Release grant to access the volume */
Sissors	7:da1f3328a496	575	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	576	#if _FS_REENTRANT
Sissors	7:da1f3328a496	577
Sissors	7:da1f3328a496	578	static
Sissors	7:da1f3328a496	579	int lock_fs (
Sissors	7:da1f3328a496	580	FATFS fs / File system object */
Sissors	7:da1f3328a496	581	)
Sissors	7:da1f3328a496	582	{
Sissors	7:da1f3328a496	583	return ff_req_grant(fs->sobj);
Sissors	7:da1f3328a496	584	}
Sissors	7:da1f3328a496	585
Sissors	7:da1f3328a496	586
Sissors	7:da1f3328a496	587	static
Sissors	7:da1f3328a496	588	void unlock_fs (
Sissors	7:da1f3328a496	589	FATFS fs, / File system object */
Sissors	7:da1f3328a496	590	FRESULT res /* Result code to be returned */
Sissors	7:da1f3328a496	591	)
Sissors	7:da1f3328a496	592	{
Sissors	7:da1f3328a496	593	if (fs &&
Sissors	7:da1f3328a496	594	res != FR_NOT_ENABLED &&
Sissors	7:da1f3328a496	595	res != FR_INVALID_DRIVE &&
Sissors	7:da1f3328a496	596	res != FR_INVALID_OBJECT &&
Sissors	7:da1f3328a496	597	res != FR_TIMEOUT) {
Sissors	7:da1f3328a496	598	ff_rel_grant(fs->sobj);
Sissors	7:da1f3328a496	599	}
Sissors	7:da1f3328a496	600	}
Sissors	7:da1f3328a496	601	#endif
Sissors	7:da1f3328a496	602
Sissors	7:da1f3328a496	603
Sissors	7:da1f3328a496	604
Sissors	7:da1f3328a496	605	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	606	/* File lock control functions */
Sissors	7:da1f3328a496	607	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	608	#if _FS_LOCK
Sissors	7:da1f3328a496	609
Sissors	7:da1f3328a496	610	static
Sissors	7:da1f3328a496	611	FRESULT chk_lock ( /* Check if the file can be accessed */
Sissors	7:da1f3328a496	612	DIR* dj, /* Directory object pointing the file to be checked */
Sissors	7:da1f3328a496	613	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
Sissors	7:da1f3328a496	614	)
Sissors	7:da1f3328a496	615	{
Sissors	7:da1f3328a496	616	UINT i, be;
Sissors	7:da1f3328a496	617
Sissors	7:da1f3328a496	618	/* Search file semaphore table */
Sissors	7:da1f3328a496	619	for (i = be = 0; i < _FS_LOCK; i++) {
Sissors	7:da1f3328a496	620	if (Files[i].fs) { /* Existing entry */
Sissors	7:da1f3328a496	621	if (Files[i].fs == dj->fs && /* Check if the file matched with an open file */
Sissors	7:da1f3328a496	622	Files[i].clu == dj->sclust &&
Sissors	7:da1f3328a496	623	Files[i].idx == dj->index) break;
Sissors	7:da1f3328a496	624	} else { /* Blank entry */
Sissors	7:da1f3328a496	625	be++;
Sissors	7:da1f3328a496	626	}
Sissors	7:da1f3328a496	627	}
Sissors	7:da1f3328a496	628	if (i == _FS_LOCK) /* The file is not opened */
Sissors	7:da1f3328a496	629	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new file? */
Sissors	7:da1f3328a496	630
Sissors	7:da1f3328a496	631	/* The file has been opened. Reject any open against writing file and all write mode open */
Sissors	7:da1f3328a496	632	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
Sissors	7:da1f3328a496	633	}
Sissors	7:da1f3328a496	634
Sissors	7:da1f3328a496	635
Sissors	7:da1f3328a496	636	static
Sissors	7:da1f3328a496	637	int enq_lock (void) /* Check if an entry is available for a new file */
Sissors	7:da1f3328a496	638	{
Sissors	7:da1f3328a496	639	UINT i;
Sissors	7:da1f3328a496	640
Sissors	7:da1f3328a496	641	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
Sissors	7:da1f3328a496	642	return (i == _FS_LOCK) ? 0 : 1;
Sissors	7:da1f3328a496	643	}
Sissors	7:da1f3328a496	644
Sissors	7:da1f3328a496	645
Sissors	7:da1f3328a496	646	static
Sissors	7:da1f3328a496	647	UINT inc_lock ( /* Increment file open counter and returns its index (0:int error) */
Sissors	7:da1f3328a496	648	DIR* dj, /* Directory object pointing the file to register or increment */
Sissors	7:da1f3328a496	649	int acc /* Desired access mode (0:Read, !0:Write) */
Sissors	7:da1f3328a496	650	)
Sissors	7:da1f3328a496	651	{
Sissors	7:da1f3328a496	652	UINT i;
Sissors	7:da1f3328a496	653
Sissors	7:da1f3328a496	654
Sissors	7:da1f3328a496	655	for (i = 0; i < _FS_LOCK; i++) { /* Find the file */
Sissors	7:da1f3328a496	656	if (Files[i].fs == dj->fs &&
Sissors	7:da1f3328a496	657	Files[i].clu == dj->sclust &&
Sissors	7:da1f3328a496	658	Files[i].idx == dj->index) break;
Sissors	7:da1f3328a496	659	}
Sissors	7:da1f3328a496	660
Sissors	7:da1f3328a496	661	if (i == _FS_LOCK) { /* Not opened. Register it as new. */
Sissors	7:da1f3328a496	662	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
Sissors	7:da1f3328a496	663	if (i == _FS_LOCK) return 0; /* No space to register (int err) */
Sissors	7:da1f3328a496	664	Files[i].fs = dj->fs;
Sissors	7:da1f3328a496	665	Files[i].clu = dj->sclust;
Sissors	7:da1f3328a496	666	Files[i].idx = dj->index;
Sissors	7:da1f3328a496	667	Files[i].ctr = 0;
Sissors	7:da1f3328a496	668	}
Sissors	7:da1f3328a496	669
Sissors	7:da1f3328a496	670	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
Sissors	7:da1f3328a496	671
Sissors	7:da1f3328a496	672	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
Sissors	7:da1f3328a496	673
Sissors	7:da1f3328a496	674	return i + 1;
Sissors	7:da1f3328a496	675	}
Sissors	7:da1f3328a496	676
Sissors	7:da1f3328a496	677
Sissors	7:da1f3328a496	678	static
Sissors	7:da1f3328a496	679	FRESULT dec_lock ( /* Decrement file open counter */
Sissors	7:da1f3328a496	680	UINT i /* Semaphore index */
Sissors	7:da1f3328a496	681	)
Sissors	7:da1f3328a496	682	{
Sissors	7:da1f3328a496	683	WORD n;
Sissors	7:da1f3328a496	684	FRESULT res;
Sissors	7:da1f3328a496	685
Sissors	7:da1f3328a496	686
Sissors	7:da1f3328a496	687	if (--i < _FS_LOCK) {
Sissors	7:da1f3328a496	688	n = Files[i].ctr;
Sissors	7:da1f3328a496	689	if (n == 0x100) n = 0;
Sissors	7:da1f3328a496	690	if (n) n--;
Sissors	7:da1f3328a496	691	Files[i].ctr = n;
Sissors	7:da1f3328a496	692	if (!n) Files[i].fs = 0;
Sissors	7:da1f3328a496	693	res = FR_OK;
Sissors	7:da1f3328a496	694	} else {
Sissors	7:da1f3328a496	695	res = FR_INT_ERR;
Sissors	7:da1f3328a496	696	}
Sissors	7:da1f3328a496	697	return res;
Sissors	7:da1f3328a496	698	}
Sissors	7:da1f3328a496	699
Sissors	7:da1f3328a496	700
Sissors	7:da1f3328a496	701	static
Sissors	7:da1f3328a496	702	void clear_lock ( /* Clear lock entries of the volume */
Sissors	7:da1f3328a496	703	FATFS *fs
Sissors	7:da1f3328a496	704	)
Sissors	7:da1f3328a496	705	{
Sissors	7:da1f3328a496	706	UINT i;
Sissors	7:da1f3328a496	707
Sissors	7:da1f3328a496	708	for (i = 0; i < _FS_LOCK; i++) {
Sissors	7:da1f3328a496	709	if (Files[i].fs == fs) Files[i].fs = 0;
Sissors	7:da1f3328a496	710	}
Sissors	7:da1f3328a496	711	}
Sissors	7:da1f3328a496	712	#endif
Sissors	7:da1f3328a496	713
Sissors	7:da1f3328a496	714
Sissors	7:da1f3328a496	715
Sissors	7:da1f3328a496	716	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	717	/* Change window offset */
Sissors	7:da1f3328a496	718	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	719
Sissors	7:da1f3328a496	720	static
Sissors	7:da1f3328a496	721	FRESULT move_window (
Sissors	7:da1f3328a496	722	FATFS fs, / File system object */
Sissors	7:da1f3328a496	723	DWORD sector /* Sector number to make appearance in the fs->win[] */
Sissors	7:da1f3328a496	724	) /* Move to zero only writes back dirty window */
Sissors	7:da1f3328a496	725	{
Sissors	7:da1f3328a496	726	DWORD wsect;
Sissors	7:da1f3328a496	727
Sissors	7:da1f3328a496	728
Sissors	7:da1f3328a496	729	wsect = fs->winsect;
Sissors	7:da1f3328a496	730	if (wsect != sector) { /* Changed current window */
Sissors	7:da1f3328a496	731	#if !_FS_READONLY
Sissors	7:da1f3328a496	732	if (fs->wflag) { /* Write back dirty window if needed */
Sissors	7:da1f3328a496	733	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK)
Sissors	7:da1f3328a496	734	return FR_DISK_ERR;
Sissors	7:da1f3328a496	735	fs->wflag = 0;
Sissors	7:da1f3328a496	736	if (wsect < (fs->fatbase + fs->fsize)) { /* In FAT area */
Sissors	7:da1f3328a496	737	BYTE nf;
Sissors	7:da1f3328a496	738	for (nf = fs->n_fats; nf > 1; nf--) { /* Reflect the change to all FAT copies */
Sissors	7:da1f3328a496	739	wsect += fs->fsize;
Sissors	7:da1f3328a496	740	disk_write(fs->drv, fs->win, wsect, 1);
Sissors	7:da1f3328a496	741	}
Sissors	7:da1f3328a496	742	}
Sissors	7:da1f3328a496	743	}
Sissors	7:da1f3328a496	744	#endif
Sissors	7:da1f3328a496	745	if (sector) {
Sissors	7:da1f3328a496	746	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK)
Sissors	7:da1f3328a496	747	return FR_DISK_ERR;
Sissors	7:da1f3328a496	748	fs->winsect = sector;
Sissors	7:da1f3328a496	749	}
Sissors	7:da1f3328a496	750	}
Sissors	7:da1f3328a496	751
Sissors	7:da1f3328a496	752	return FR_OK;
Sissors	7:da1f3328a496	753	}
Sissors	7:da1f3328a496	754
Sissors	7:da1f3328a496	755
Sissors	7:da1f3328a496	756
Sissors	7:da1f3328a496	757
Sissors	7:da1f3328a496	758	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	759	/* Clean-up cached data */
Sissors	7:da1f3328a496	760	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	761	#if !_FS_READONLY
Sissors	7:da1f3328a496	762	static
Sissors	7:da1f3328a496	763	FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */
Sissors	7:da1f3328a496	764	FATFS fs / File system object */
Sissors	7:da1f3328a496	765	)
Sissors	7:da1f3328a496	766	{
Sissors	7:da1f3328a496	767	FRESULT res;
Sissors	7:da1f3328a496	768
Sissors	7:da1f3328a496	769
Sissors	7:da1f3328a496	770	res = move_window(fs, 0);
Sissors	7:da1f3328a496	771	if (res == FR_OK) {
Sissors	7:da1f3328a496	772	/* Update FSInfo sector if needed */
Sissors	7:da1f3328a496	773	if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
Sissors	7:da1f3328a496	774	fs->winsect = 0;
Sissors	7:da1f3328a496	775	/* Create FSInfo structure */
Sissors	7:da1f3328a496	776	mem_set(fs->win, 0, 512);
Sissors	7:da1f3328a496	777	ST_WORD(fs->win+BS_55AA, 0xAA55);
Sissors	7:da1f3328a496	778	ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
Sissors	7:da1f3328a496	779	ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
Sissors	7:da1f3328a496	780	ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
Sissors	7:da1f3328a496	781	ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
Sissors	7:da1f3328a496	782	/* Write it into the FSInfo sector */
Sissors	7:da1f3328a496	783	disk_write(fs->drv, fs->win, fs->fsi_sector, 1);
Sissors	7:da1f3328a496	784	fs->fsi_flag = 0;
Sissors	7:da1f3328a496	785	}
Sissors	7:da1f3328a496	786	/* Make sure that no pending write process in the physical drive */
Sissors	7:da1f3328a496	787	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
Sissors	7:da1f3328a496	788	res = FR_DISK_ERR;
Sissors	7:da1f3328a496	789	}
Sissors	7:da1f3328a496	790
Sissors	7:da1f3328a496	791	return res;
Sissors	7:da1f3328a496	792	}
Sissors	7:da1f3328a496	793	#endif
Sissors	7:da1f3328a496	794
Sissors	7:da1f3328a496	795
Sissors	7:da1f3328a496	796
Sissors	7:da1f3328a496	797
Sissors	7:da1f3328a496	798	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	799	/* Get sector# from cluster# */
Sissors	7:da1f3328a496	800	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	801
Sissors	7:da1f3328a496	802
Sissors	7:da1f3328a496	803	DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
Sissors	7:da1f3328a496	804	FATFS fs, / File system object */
Sissors	7:da1f3328a496	805	DWORD clst /* Cluster# to be converted */
Sissors	7:da1f3328a496	806	)
Sissors	7:da1f3328a496	807	{
Sissors	7:da1f3328a496	808	clst -= 2;
Sissors	7:da1f3328a496	809	if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
Sissors	7:da1f3328a496	810	return clst * fs->csize + fs->database;
Sissors	7:da1f3328a496	811	}
Sissors	7:da1f3328a496	812
Sissors	7:da1f3328a496	813
Sissors	7:da1f3328a496	814
Sissors	7:da1f3328a496	815
Sissors	7:da1f3328a496	816	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	817	/* FAT access - Read value of a FAT entry */
Sissors	7:da1f3328a496	818	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	819
Sissors	7:da1f3328a496	820
Sissors	7:da1f3328a496	821	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
Sissors	7:da1f3328a496	822	FATFS fs, / File system object */
Sissors	7:da1f3328a496	823	DWORD clst /* Cluster# to get the link information */
Sissors	7:da1f3328a496	824	)
Sissors	7:da1f3328a496	825	{
Sissors	7:da1f3328a496	826	UINT wc, bc;
Sissors	7:da1f3328a496	827	BYTE *p;
Sissors	7:da1f3328a496	828
Sissors	7:da1f3328a496	829
Sissors	7:da1f3328a496	830	if (clst < 2 \|\| clst >= fs->n_fatent) /* Check range */
Sissors	7:da1f3328a496	831	return 1;
Sissors	7:da1f3328a496	832
Sissors	7:da1f3328a496	833	switch (fs->fs_type) {
Sissors	7:da1f3328a496	834	case FS_FAT12 :
Sissors	7:da1f3328a496	835	bc = (UINT)clst; bc += bc / 2;
Sissors	7:da1f3328a496	836	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
Sissors	7:da1f3328a496	837	wc = fs->win[bc % SS(fs)]; bc++;
Sissors	7:da1f3328a496	838	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
Sissors	7:da1f3328a496	839	wc \|= fs->win[bc % SS(fs)] << 8;
Sissors	7:da1f3328a496	840	return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
Sissors	7:da1f3328a496	841
Sissors	7:da1f3328a496	842	case FS_FAT16 :
Sissors	7:da1f3328a496	843	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
Sissors	7:da1f3328a496	844	p = &fs->win[clst * 2 % SS(fs)];
Sissors	7:da1f3328a496	845	return LD_WORD(p);
Sissors	7:da1f3328a496	846
Sissors	7:da1f3328a496	847	case FS_FAT32 :
Sissors	7:da1f3328a496	848	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
Sissors	7:da1f3328a496	849	p = &fs->win[clst * 4 % SS(fs)];
Sissors	7:da1f3328a496	850	return LD_DWORD(p) & 0x0FFFFFFF;
Sissors	7:da1f3328a496	851	}
Sissors	7:da1f3328a496	852
Sissors	7:da1f3328a496	853	return 0xFFFFFFFF; /* An error occurred at the disk I/O layer */
Sissors	7:da1f3328a496	854	}
Sissors	7:da1f3328a496	855
Sissors	7:da1f3328a496	856
Sissors	7:da1f3328a496	857
Sissors	7:da1f3328a496	858
Sissors	7:da1f3328a496	859	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	860	/* FAT access - Change value of a FAT entry */
Sissors	7:da1f3328a496	861	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	862	#if !_FS_READONLY
Sissors	7:da1f3328a496	863
Sissors	7:da1f3328a496	864	FRESULT put_fat (
Sissors	7:da1f3328a496	865	FATFS fs, / File system object */
Sissors	7:da1f3328a496	866	DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
Sissors	7:da1f3328a496	867	DWORD val /* New value to mark the cluster */
Sissors	7:da1f3328a496	868	)
Sissors	7:da1f3328a496	869	{
Sissors	7:da1f3328a496	870	UINT bc;
Sissors	7:da1f3328a496	871	BYTE *p;
Sissors	7:da1f3328a496	872	FRESULT res;
Sissors	7:da1f3328a496	873
Sissors	7:da1f3328a496	874
Sissors	7:da1f3328a496	875	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
Sissors	7:da1f3328a496	876	res = FR_INT_ERR;
Sissors	7:da1f3328a496	877
Sissors	7:da1f3328a496	878	} else {
Sissors	7:da1f3328a496	879	switch (fs->fs_type) {
Sissors	7:da1f3328a496	880	case FS_FAT12 :
Sissors	7:da1f3328a496	881	bc = (UINT)clst; bc += bc / 2;
Sissors	7:da1f3328a496	882	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
Sissors	7:da1f3328a496	883	if (res != FR_OK) break;
Sissors	7:da1f3328a496	884	p = &fs->win[bc % SS(fs)];
Sissors	7:da1f3328a496	885	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
Sissors	7:da1f3328a496	886	bc++;
Sissors	7:da1f3328a496	887	fs->wflag = 1;
Sissors	7:da1f3328a496	888	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
Sissors	7:da1f3328a496	889	if (res != FR_OK) break;
Sissors	7:da1f3328a496	890	p = &fs->win[bc % SS(fs)];
Sissors	7:da1f3328a496	891	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
Sissors	7:da1f3328a496	892	break;
Sissors	7:da1f3328a496	893
Sissors	7:da1f3328a496	894	case FS_FAT16 :
Sissors	7:da1f3328a496	895	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
Sissors	7:da1f3328a496	896	if (res != FR_OK) break;
Sissors	7:da1f3328a496	897	p = &fs->win[clst * 2 % SS(fs)];
Sissors	7:da1f3328a496	898	ST_WORD(p, (WORD)val);
Sissors	7:da1f3328a496	899	break;
Sissors	7:da1f3328a496	900
Sissors	7:da1f3328a496	901	case FS_FAT32 :
Sissors	7:da1f3328a496	902	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
Sissors	7:da1f3328a496	903	if (res != FR_OK) break;
Sissors	7:da1f3328a496	904	p = &fs->win[clst * 4 % SS(fs)];
Sissors	7:da1f3328a496	905	val \|= LD_DWORD(p) & 0xF0000000;
Sissors	7:da1f3328a496	906	ST_DWORD(p, val);
Sissors	7:da1f3328a496	907	break;
Sissors	7:da1f3328a496	908
Sissors	7:da1f3328a496	909	default :
Sissors	7:da1f3328a496	910	res = FR_INT_ERR;
Sissors	7:da1f3328a496	911	}
Sissors	7:da1f3328a496	912	fs->wflag = 1;
Sissors	7:da1f3328a496	913	}
Sissors	7:da1f3328a496	914
Sissors	7:da1f3328a496	915	return res;
Sissors	7:da1f3328a496	916	}
Sissors	7:da1f3328a496	917	#endif /* !_FS_READONLY */
Sissors	7:da1f3328a496	918
Sissors	7:da1f3328a496	919
Sissors	7:da1f3328a496	920
Sissors	7:da1f3328a496	921
Sissors	7:da1f3328a496	922	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	923	/* FAT handling - Remove a cluster chain */
Sissors	7:da1f3328a496	924	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	925	#if !_FS_READONLY
Sissors	7:da1f3328a496	926	static
Sissors	7:da1f3328a496	927	FRESULT remove_chain (
Sissors	7:da1f3328a496	928	FATFS fs, / File system object */
Sissors	7:da1f3328a496	929	DWORD clst /* Cluster# to remove a chain from */
Sissors	7:da1f3328a496	930	)
Sissors	7:da1f3328a496	931	{
Sissors	7:da1f3328a496	932	FRESULT res;
Sissors	7:da1f3328a496	933	DWORD nxt;
Sissors	7:da1f3328a496	934	#if _USE_ERASE
Sissors	7:da1f3328a496	935	DWORD scl = clst, ecl = clst, rt[2];
Sissors	7:da1f3328a496	936	#endif
Sissors	7:da1f3328a496	937
Sissors	7:da1f3328a496	938	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
Sissors	7:da1f3328a496	939	res = FR_INT_ERR;
Sissors	7:da1f3328a496	940
Sissors	7:da1f3328a496	941	} else {
Sissors	7:da1f3328a496	942	res = FR_OK;
Sissors	7:da1f3328a496	943	while (clst < fs->n_fatent) { /* Not a last link? */
Sissors	7:da1f3328a496	944	nxt = get_fat(fs, clst); /* Get cluster status */
Sissors	7:da1f3328a496	945	if (nxt == 0) break; /* Empty cluster? */
Sissors	7:da1f3328a496	946	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
Sissors	7:da1f3328a496	947	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
Sissors	7:da1f3328a496	948	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
Sissors	7:da1f3328a496	949	if (res != FR_OK) break;
Sissors	7:da1f3328a496	950	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */
Sissors	7:da1f3328a496	951	fs->free_clust++;
Sissors	7:da1f3328a496	952	fs->fsi_flag = 1;
Sissors	7:da1f3328a496	953	}
Sissors	7:da1f3328a496	954	#if _USE_ERASE
Sissors	7:da1f3328a496	955	if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
Sissors	7:da1f3328a496	956	ecl = nxt;
Sissors	7:da1f3328a496	957	} else { /* End of contiguous clusters */
Sissors	7:da1f3328a496	958	rt[0] = clust2sect(fs, scl); /* Start sector */
Sissors	7:da1f3328a496	959	rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
Sissors	7:da1f3328a496	960	disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, rt); /* Erase the block */
Sissors	7:da1f3328a496	961	scl = ecl = nxt;
Sissors	7:da1f3328a496	962	}
Sissors	7:da1f3328a496	963	#endif
Sissors	7:da1f3328a496	964	clst = nxt; /* Next cluster */
Sissors	7:da1f3328a496	965	}
Sissors	7:da1f3328a496	966	}
Sissors	7:da1f3328a496	967
Sissors	7:da1f3328a496	968	return res;
Sissors	7:da1f3328a496	969	}
Sissors	7:da1f3328a496	970	#endif
Sissors	7:da1f3328a496	971
Sissors	7:da1f3328a496	972
Sissors	7:da1f3328a496	973
Sissors	7:da1f3328a496	974
Sissors	7:da1f3328a496	975	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	976	/* FAT handling - Stretch or Create a cluster chain */
Sissors	7:da1f3328a496	977	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	978	#if !_FS_READONLY
Sissors	7:da1f3328a496	979	static
Sissors	7:da1f3328a496	980	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
Sissors	7:da1f3328a496	981	FATFS fs, / File system object */
Sissors	7:da1f3328a496	982	DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
Sissors	7:da1f3328a496	983	)
Sissors	7:da1f3328a496	984	{
Sissors	7:da1f3328a496	985	DWORD cs, ncl, scl;
Sissors	7:da1f3328a496	986	FRESULT res;
Sissors	7:da1f3328a496	987
Sissors	7:da1f3328a496	988
Sissors	7:da1f3328a496	989	if (clst == 0) { /* Create a new chain */
Sissors	7:da1f3328a496	990	scl = fs->last_clust; /* Get suggested start point */
Sissors	7:da1f3328a496	991	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
Sissors	7:da1f3328a496	992	}
Sissors	7:da1f3328a496	993	else { /* Stretch the current chain */
Sissors	7:da1f3328a496	994	cs = get_fat(fs, clst); /* Check the cluster status */
Sissors	7:da1f3328a496	995	if (cs < 2) return 1; /* It is an invalid cluster */
Sissors	7:da1f3328a496	996	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
Sissors	7:da1f3328a496	997	scl = clst;
Sissors	7:da1f3328a496	998	}
Sissors	7:da1f3328a496	999
Sissors	7:da1f3328a496	1000	ncl = scl; /* Start cluster */
Sissors	7:da1f3328a496	1001	for (;;) {
Sissors	7:da1f3328a496	1002	ncl++; /* Next cluster */
Sissors	7:da1f3328a496	1003	if (ncl >= fs->n_fatent) { /* Wrap around */
Sissors	7:da1f3328a496	1004	ncl = 2;
Sissors	7:da1f3328a496	1005	if (ncl > scl) return 0; /* No free cluster */
Sissors	7:da1f3328a496	1006	}
Sissors	7:da1f3328a496	1007	cs = get_fat(fs, ncl); /* Get the cluster status */
Sissors	7:da1f3328a496	1008	if (cs == 0) break; /* Found a free cluster */
Sissors	7:da1f3328a496	1009	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
Sissors	7:da1f3328a496	1010	return cs;
Sissors	7:da1f3328a496	1011	if (ncl == scl) return 0; /* No free cluster */
Sissors	7:da1f3328a496	1012	}
Sissors	7:da1f3328a496	1013
Sissors	7:da1f3328a496	1014	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
Sissors	7:da1f3328a496	1015	if (res == FR_OK && clst != 0) {
Sissors	7:da1f3328a496	1016	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
Sissors	7:da1f3328a496	1017	}
Sissors	7:da1f3328a496	1018	if (res == FR_OK) {
Sissors	7:da1f3328a496	1019	fs->last_clust = ncl; /* Update FSINFO */
Sissors	7:da1f3328a496	1020	if (fs->free_clust != 0xFFFFFFFF) {
Sissors	7:da1f3328a496	1021	fs->free_clust--;
Sissors	7:da1f3328a496	1022	fs->fsi_flag = 1;
Sissors	7:da1f3328a496	1023	}
Sissors	7:da1f3328a496	1024	} else {
Sissors	7:da1f3328a496	1025	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
Sissors	7:da1f3328a496	1026	}
Sissors	7:da1f3328a496	1027
Sissors	7:da1f3328a496	1028	return ncl; /* Return new cluster number or error code */
Sissors	7:da1f3328a496	1029	}
Sissors	7:da1f3328a496	1030	#endif /* !_FS_READONLY */
Sissors	7:da1f3328a496	1031
Sissors	7:da1f3328a496	1032
Sissors	7:da1f3328a496	1033
Sissors	7:da1f3328a496	1034	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1035	/* FAT handling - Convert offset into cluster with link map table */
Sissors	7:da1f3328a496	1036	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1037
Sissors	7:da1f3328a496	1038	#if _USE_FASTSEEK
Sissors	7:da1f3328a496	1039	static
Sissors	7:da1f3328a496	1040	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
Sissors	7:da1f3328a496	1041	FIL* fp, /* Pointer to the file object */
Sissors	7:da1f3328a496	1042	DWORD ofs /* File offset to be converted to cluster# */
Sissors	7:da1f3328a496	1043	)
Sissors	7:da1f3328a496	1044	{
Sissors	7:da1f3328a496	1045	DWORD cl, ncl, *tbl;
Sissors	7:da1f3328a496	1046
Sissors	7:da1f3328a496	1047
Sissors	7:da1f3328a496	1048	tbl = fp->cltbl + 1; /* Top of CLMT */
Sissors	7:da1f3328a496	1049	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
Sissors	7:da1f3328a496	1050	for (;;) {
Sissors	7:da1f3328a496	1051	ncl = tbl++; / Number of cluters in the fragment */
Sissors	7:da1f3328a496	1052	if (!ncl) return 0; /* End of table? (error) */
Sissors	7:da1f3328a496	1053	if (cl < ncl) break; /* In this fragment? */
Sissors	7:da1f3328a496	1054	cl -= ncl; tbl++; /* Next fragment */
Sissors	7:da1f3328a496	1055	}
Sissors	7:da1f3328a496	1056	return cl + tbl; / Return the cluster number */
Sissors	7:da1f3328a496	1057	}
Sissors	7:da1f3328a496	1058	#endif /* _USE_FASTSEEK */
Sissors	7:da1f3328a496	1059
Sissors	7:da1f3328a496	1060
Sissors	7:da1f3328a496	1061
Sissors	7:da1f3328a496	1062	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1063	/* Directory handling - Set directory index */
Sissors	7:da1f3328a496	1064	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1065
Sissors	7:da1f3328a496	1066	static
Sissors	7:da1f3328a496	1067	FRESULT dir_sdi (
Sissors	7:da1f3328a496	1068	FATFS_DIR dj, / Pointer to directory object */
Sissors	7:da1f3328a496	1069	WORD idx /* Index of directory table */
Sissors	7:da1f3328a496	1070	)
Sissors	7:da1f3328a496	1071	{
Sissors	7:da1f3328a496	1072	DWORD clst;
Sissors	7:da1f3328a496	1073	WORD ic;
Sissors	7:da1f3328a496	1074
Sissors	7:da1f3328a496	1075
Sissors	7:da1f3328a496	1076	dj->index = idx;
Sissors	7:da1f3328a496	1077	clst = dj->sclust;
Sissors	7:da1f3328a496	1078	if (clst == 1 \|\| clst >= dj->fs->n_fatent) /* Check start cluster range */
Sissors	7:da1f3328a496	1079	return FR_INT_ERR;
Sissors	7:da1f3328a496	1080	if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
Sissors	7:da1f3328a496	1081	clst = dj->fs->dirbase;
Sissors	7:da1f3328a496	1082
Sissors	7:da1f3328a496	1083	if (clst == 0) { /* Static table (root-dir in FAT12/16) */
Sissors	7:da1f3328a496	1084	dj->clust = clst;
Sissors	7:da1f3328a496	1085	if (idx >= dj->fs->n_rootdir) /* Index is out of range */
Sissors	7:da1f3328a496	1086	return FR_INT_ERR;
Sissors	7:da1f3328a496	1087	dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
Sissors	7:da1f3328a496	1088	}
Sissors	7:da1f3328a496	1089	else { /* Dynamic table (sub-dirs or root-dir in FAT32) */
Sissors	7:da1f3328a496	1090	ic = SS(dj->fs) / SZ_DIR * dj->fs->csize; /* Entries per cluster */
Sissors	7:da1f3328a496	1091	while (idx >= ic) { /* Follow cluster chain */
Sissors	7:da1f3328a496	1092	clst = get_fat(dj->fs, clst); /* Get next cluster */
Sissors	7:da1f3328a496	1093	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
Sissors	7:da1f3328a496	1094	if (clst < 2 \|\| clst >= dj->fs->n_fatent) /* Reached to end of table or int error */
Sissors	7:da1f3328a496	1095	return FR_INT_ERR;
Sissors	7:da1f3328a496	1096	idx -= ic;
Sissors	7:da1f3328a496	1097	}
Sissors	7:da1f3328a496	1098	dj->clust = clst;
Sissors	7:da1f3328a496	1099	dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
Sissors	7:da1f3328a496	1100	}
Sissors	7:da1f3328a496	1101
Sissors	7:da1f3328a496	1102	dj->dir = dj->fs->win + (idx % (SS(dj->fs) / SZ_DIR)) * SZ_DIR; /* Ptr to the entry in the sector */
Sissors	7:da1f3328a496	1103
Sissors	7:da1f3328a496	1104	return FR_OK; /* Seek succeeded */
Sissors	7:da1f3328a496	1105	}
Sissors	7:da1f3328a496	1106
Sissors	7:da1f3328a496	1107
Sissors	7:da1f3328a496	1108
Sissors	7:da1f3328a496	1109
Sissors	7:da1f3328a496	1110	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1111	/* Directory handling - Move directory table index next */
Sissors	7:da1f3328a496	1112	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1113
Sissors	7:da1f3328a496	1114	static
Sissors	7:da1f3328a496	1115	FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not stretch */
Sissors	7:da1f3328a496	1116	FATFS_DIR dj, / Pointer to directory object */
Sissors	7:da1f3328a496	1117	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
Sissors	7:da1f3328a496	1118	)
Sissors	7:da1f3328a496	1119	{
Sissors	7:da1f3328a496	1120	DWORD clst;
Sissors	7:da1f3328a496	1121	WORD i;
Sissors	7:da1f3328a496	1122
Sissors	7:da1f3328a496	1123
Sissors	7:da1f3328a496	1124	stretch = stretch; /* To suppress warning on read-only cfg. */
Sissors	7:da1f3328a496	1125	i = dj->index + 1;
Sissors	7:da1f3328a496	1126	if (!i \|\| !dj->sect) /* Report EOT when index has reached 65535 */
Sissors	7:da1f3328a496	1127	return FR_NO_FILE;
Sissors	7:da1f3328a496	1128
Sissors	7:da1f3328a496	1129	if (!(i % (SS(dj->fs) / SZ_DIR))) { /* Sector changed? */
Sissors	7:da1f3328a496	1130	dj->sect++; /* Next sector */
Sissors	7:da1f3328a496	1131
Sissors	7:da1f3328a496	1132	if (dj->clust == 0) { /* Static table */
Sissors	7:da1f3328a496	1133	if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */
Sissors	7:da1f3328a496	1134	return FR_NO_FILE;
Sissors	7:da1f3328a496	1135	}
Sissors	7:da1f3328a496	1136	else { /* Dynamic table */
Sissors	7:da1f3328a496	1137	if (((i / (SS(dj->fs) / SZ_DIR)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
Sissors	7:da1f3328a496	1138	clst = get_fat(dj->fs, dj->clust); /* Get next cluster */
Sissors	7:da1f3328a496	1139	if (clst <= 1) return FR_INT_ERR;
Sissors	7:da1f3328a496	1140	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
Sissors	7:da1f3328a496	1141	if (clst >= dj->fs->n_fatent) { /* When it reached end of dynamic table */
Sissors	7:da1f3328a496	1142	#if !_FS_READONLY
Sissors	7:da1f3328a496	1143	BYTE c;
Sissors	7:da1f3328a496	1144	if (!stretch) return FR_NO_FILE; /* When do not stretch, report EOT */
Sissors	7:da1f3328a496	1145	clst = create_chain(dj->fs, dj->clust); /* Stretch cluster chain */
Sissors	7:da1f3328a496	1146	if (clst == 0) return FR_DENIED; /* No free cluster */
Sissors	7:da1f3328a496	1147	if (clst == 1) return FR_INT_ERR;
Sissors	7:da1f3328a496	1148	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
Sissors	7:da1f3328a496	1149	/* Clean-up stretched table */
Sissors	7:da1f3328a496	1150	if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */
Sissors	7:da1f3328a496	1151	mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */
Sissors	7:da1f3328a496	1152	dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */
Sissors	7:da1f3328a496	1153	for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */
Sissors	7:da1f3328a496	1154	dj->fs->wflag = 1;
Sissors	7:da1f3328a496	1155	if (move_window(dj->fs, 0)) return FR_DISK_ERR;
Sissors	7:da1f3328a496	1156	dj->fs->winsect++;
Sissors	7:da1f3328a496	1157	}
Sissors	7:da1f3328a496	1158	dj->fs->winsect -= c; /* Rewind window address */
Sissors	7:da1f3328a496	1159	#else
Sissors	7:da1f3328a496	1160	return FR_NO_FILE; /* Report EOT */
Sissors	7:da1f3328a496	1161	#endif
Sissors	7:da1f3328a496	1162	}
Sissors	7:da1f3328a496	1163	dj->clust = clst; /* Initialize data for new cluster */
Sissors	7:da1f3328a496	1164	dj->sect = clust2sect(dj->fs, clst);
Sissors	7:da1f3328a496	1165	}
Sissors	7:da1f3328a496	1166	}
Sissors	7:da1f3328a496	1167	}
Sissors	7:da1f3328a496	1168
Sissors	7:da1f3328a496	1169	dj->index = i;
Sissors	7:da1f3328a496	1170	dj->dir = dj->fs->win + (i % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;
Sissors	7:da1f3328a496	1171
Sissors	7:da1f3328a496	1172	return FR_OK;
Sissors	7:da1f3328a496	1173	}
Sissors	7:da1f3328a496	1174
Sissors	7:da1f3328a496	1175
Sissors	7:da1f3328a496	1176
Sissors	7:da1f3328a496	1177
Sissors	7:da1f3328a496	1178	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1179	/* Directory handling - Load/Store start cluster number */
Sissors	7:da1f3328a496	1180	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1181
Sissors	7:da1f3328a496	1182	static
Sissors	7:da1f3328a496	1183	DWORD ld_clust (
Sissors	7:da1f3328a496	1184	FATFS fs, / Pointer to the fs object */
Sissors	7:da1f3328a496	1185	BYTE dir / Pointer to the directory entry */
Sissors	7:da1f3328a496	1186	)
Sissors	7:da1f3328a496	1187	{
Sissors	7:da1f3328a496	1188	DWORD cl;
Sissors	7:da1f3328a496	1189
Sissors	7:da1f3328a496	1190	cl = LD_WORD(dir+DIR_FstClusLO);
Sissors	7:da1f3328a496	1191	if (fs->fs_type == FS_FAT32)
Sissors	7:da1f3328a496	1192	cl \|= (DWORD)LD_WORD(dir+DIR_FstClusHI) << 16;
Sissors	7:da1f3328a496	1193
Sissors	7:da1f3328a496	1194	return cl;
Sissors	7:da1f3328a496	1195	}
Sissors	7:da1f3328a496	1196
Sissors	7:da1f3328a496	1197
Sissors	7:da1f3328a496	1198	#if !_FS_READONLY
Sissors	7:da1f3328a496	1199	static
Sissors	7:da1f3328a496	1200	void st_clust (
Sissors	7:da1f3328a496	1201	BYTE dir, / Pointer to the directory entry */
Sissors	7:da1f3328a496	1202	DWORD cl /* Value to be set */
Sissors	7:da1f3328a496	1203	)
Sissors	7:da1f3328a496	1204	{
Sissors	7:da1f3328a496	1205	ST_WORD(dir+DIR_FstClusLO, cl);
Sissors	7:da1f3328a496	1206	ST_WORD(dir+DIR_FstClusHI, cl >> 16);
Sissors	7:da1f3328a496	1207	}
Sissors	7:da1f3328a496	1208	#endif
Sissors	7:da1f3328a496	1209
Sissors	7:da1f3328a496	1210
Sissors	7:da1f3328a496	1211
Sissors	7:da1f3328a496	1212	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1213	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
Sissors	7:da1f3328a496	1214	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1215	#if _USE_LFN
Sissors	7:da1f3328a496	1216	static
Sissors	7:da1f3328a496	1217	const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN chars in the directory entry */
Sissors	7:da1f3328a496	1218
Sissors	7:da1f3328a496	1219
Sissors	7:da1f3328a496	1220	static
Sissors	7:da1f3328a496	1221	int cmp_lfn ( /* 1:Matched, 0:Not matched */
Sissors	7:da1f3328a496	1222	WCHAR lfnbuf, / Pointer to the LFN to be compared */
Sissors	7:da1f3328a496	1223	BYTE dir / Pointer to the directory entry containing a part of LFN */
Sissors	7:da1f3328a496	1224	)
Sissors	7:da1f3328a496	1225	{
Sissors	7:da1f3328a496	1226	UINT i, s;
Sissors	7:da1f3328a496	1227	WCHAR wc, uc;
Sissors	7:da1f3328a496	1228
Sissors	7:da1f3328a496	1229
Sissors	7:da1f3328a496	1230	i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
Sissors	7:da1f3328a496	1231	s = 0; wc = 1;
Sissors	7:da1f3328a496	1232	do {
Sissors	7:da1f3328a496	1233	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
Sissors	7:da1f3328a496	1234	if (wc) { /* Last char has not been processed */
Sissors	7:da1f3328a496	1235	wc = ff_wtoupper(uc); /* Convert it to upper case */
Sissors	7:da1f3328a496	1236	if (i >= _MAX_LFN \|\| wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
Sissors	7:da1f3328a496	1237	return 0; /* Not matched */
Sissors	7:da1f3328a496	1238	} else {
Sissors	7:da1f3328a496	1239	if (uc != 0xFFFF) return 0; /* Check filler */
Sissors	7:da1f3328a496	1240	}
Sissors	7:da1f3328a496	1241	} while (++s < 13); /* Repeat until all chars in the entry are checked */
Sissors	7:da1f3328a496	1242
Sissors	7:da1f3328a496	1243	if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) /* Last segment matched but different length */
Sissors	7:da1f3328a496	1244	return 0;
Sissors	7:da1f3328a496	1245
Sissors	7:da1f3328a496	1246	return 1; /* The part of LFN matched */
Sissors	7:da1f3328a496	1247	}
Sissors	7:da1f3328a496	1248
Sissors	7:da1f3328a496	1249
Sissors	7:da1f3328a496	1250
Sissors	7:da1f3328a496	1251	static
Sissors	7:da1f3328a496	1252	int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
Sissors	7:da1f3328a496	1253	WCHAR lfnbuf, / Pointer to the Unicode-LFN buffer */
Sissors	7:da1f3328a496	1254	BYTE dir / Pointer to the directory entry */
Sissors	7:da1f3328a496	1255	)
Sissors	7:da1f3328a496	1256	{
Sissors	7:da1f3328a496	1257	UINT i, s;
Sissors	7:da1f3328a496	1258	WCHAR wc, uc;
Sissors	7:da1f3328a496	1259
Sissors	7:da1f3328a496	1260
Sissors	7:da1f3328a496	1261	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
Sissors	7:da1f3328a496	1262
Sissors	7:da1f3328a496	1263	s = 0; wc = 1;
Sissors	7:da1f3328a496	1264	do {
Sissors	7:da1f3328a496	1265	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
Sissors	7:da1f3328a496	1266	if (wc) { /* Last char has not been processed */
Sissors	7:da1f3328a496	1267	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
Sissors	7:da1f3328a496	1268	lfnbuf[i++] = wc = uc; /* Store it */
Sissors	7:da1f3328a496	1269	} else {
Sissors	7:da1f3328a496	1270	if (uc != 0xFFFF) return 0; /* Check filler */
Sissors	7:da1f3328a496	1271	}
Sissors	7:da1f3328a496	1272	} while (++s < 13); /* Read all character in the entry */
Sissors	7:da1f3328a496	1273
Sissors	7:da1f3328a496	1274	if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
Sissors	7:da1f3328a496	1275	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
Sissors	7:da1f3328a496	1276	lfnbuf[i] = 0;
Sissors	7:da1f3328a496	1277	}
Sissors	7:da1f3328a496	1278
Sissors	7:da1f3328a496	1279	return 1;
Sissors	7:da1f3328a496	1280	}
Sissors	7:da1f3328a496	1281
Sissors	7:da1f3328a496	1282
Sissors	7:da1f3328a496	1283	#if !_FS_READONLY
Sissors	7:da1f3328a496	1284	static
Sissors	7:da1f3328a496	1285	void fit_lfn (
Sissors	7:da1f3328a496	1286	const WCHAR lfnbuf, / Pointer to the LFN buffer */
Sissors	7:da1f3328a496	1287	BYTE dir, / Pointer to the directory entry */
Sissors	7:da1f3328a496	1288	BYTE ord, /* LFN order (1-20) */
Sissors	7:da1f3328a496	1289	BYTE sum /* SFN sum */
Sissors	7:da1f3328a496	1290	)
Sissors	7:da1f3328a496	1291	{
Sissors	7:da1f3328a496	1292	UINT i, s;
Sissors	7:da1f3328a496	1293	WCHAR wc;
Sissors	7:da1f3328a496	1294
Sissors	7:da1f3328a496	1295
Sissors	7:da1f3328a496	1296	dir[LDIR_Chksum] = sum; /* Set check sum */
Sissors	7:da1f3328a496	1297	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
Sissors	7:da1f3328a496	1298	dir[LDIR_Type] = 0;
Sissors	7:da1f3328a496	1299	ST_WORD(dir+LDIR_FstClusLO, 0);
Sissors	7:da1f3328a496	1300
Sissors	7:da1f3328a496	1301	i = (ord - 1) * 13; /* Get offset in the LFN buffer */
Sissors	7:da1f3328a496	1302	s = wc = 0;
Sissors	7:da1f3328a496	1303	do {
Sissors	7:da1f3328a496	1304	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */
Sissors	7:da1f3328a496	1305	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
Sissors	7:da1f3328a496	1306	if (!wc) wc = 0xFFFF; /* Padding chars following last char */
Sissors	7:da1f3328a496	1307	} while (++s < 13);
Sissors	7:da1f3328a496	1308	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLE; /* Bottom LFN part is the start of LFN sequence */
Sissors	7:da1f3328a496	1309	dir[LDIR_Ord] = ord; /* Set the LFN order */
Sissors	7:da1f3328a496	1310	}
Sissors	7:da1f3328a496	1311
Sissors	7:da1f3328a496	1312	#endif
Sissors	7:da1f3328a496	1313	#endif
Sissors	7:da1f3328a496	1314
Sissors	7:da1f3328a496	1315
Sissors	7:da1f3328a496	1316
Sissors	7:da1f3328a496	1317	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1318	/* Create numbered name */
Sissors	7:da1f3328a496	1319	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1320	#if _USE_LFN
Sissors	7:da1f3328a496	1321	void gen_numname (
Sissors	7:da1f3328a496	1322	BYTE dst, / Pointer to generated SFN */
Sissors	7:da1f3328a496	1323	const BYTE src, / Pointer to source SFN to be modified */
Sissors	7:da1f3328a496	1324	const WCHAR lfn, / Pointer to LFN */
Sissors	7:da1f3328a496	1325	WORD seq /* Sequence number */
Sissors	7:da1f3328a496	1326	)
Sissors	7:da1f3328a496	1327	{
Sissors	7:da1f3328a496	1328	BYTE ns[8], c;
Sissors	7:da1f3328a496	1329	UINT i, j;
Sissors	7:da1f3328a496	1330
Sissors	7:da1f3328a496	1331
Sissors	7:da1f3328a496	1332	mem_cpy(dst, src, 11);
Sissors	7:da1f3328a496	1333
Sissors	7:da1f3328a496	1334	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
Sissors	7:da1f3328a496	1335	do seq = (seq >> 1) + (seq << 15) + (WORD)lfn++; while (lfn);
Sissors	7:da1f3328a496	1336	}
Sissors	7:da1f3328a496	1337
Sissors	7:da1f3328a496	1338	/* itoa (hexdecimal) */
Sissors	7:da1f3328a496	1339	i = 7;
Sissors	7:da1f3328a496	1340	do {
Sissors	7:da1f3328a496	1341	c = (seq % 16) + '0';
Sissors	7:da1f3328a496	1342	if (c > '9') c += 7;
Sissors	7:da1f3328a496	1343	ns[i--] = c;
Sissors	7:da1f3328a496	1344	seq /= 16;
Sissors	7:da1f3328a496	1345	} while (seq);
Sissors	7:da1f3328a496	1346	ns[i] = '~';
Sissors	7:da1f3328a496	1347
Sissors	7:da1f3328a496	1348	/* Append the number */
Sissors	7:da1f3328a496	1349	for (j = 0; j < i && dst[j] != ' '; j++) {
Sissors	7:da1f3328a496	1350	if (IsDBCS1(dst[j])) {
Sissors	7:da1f3328a496	1351	if (j == i - 1) break;
Sissors	7:da1f3328a496	1352	j++;
Sissors	7:da1f3328a496	1353	}
Sissors	7:da1f3328a496	1354	}
Sissors	7:da1f3328a496	1355	do {
Sissors	7:da1f3328a496	1356	dst[j++] = (i < 8) ? ns[i++] : ' ';
Sissors	7:da1f3328a496	1357	} while (j < 8);
Sissors	7:da1f3328a496	1358	}
Sissors	7:da1f3328a496	1359	#endif
Sissors	7:da1f3328a496	1360
Sissors	7:da1f3328a496	1361
Sissors	7:da1f3328a496	1362
Sissors	7:da1f3328a496	1363
Sissors	7:da1f3328a496	1364	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1365	/* Calculate sum of an SFN */
Sissors	7:da1f3328a496	1366	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1367	#if _USE_LFN
Sissors	7:da1f3328a496	1368	static
Sissors	7:da1f3328a496	1369	BYTE sum_sfn (
Sissors	7:da1f3328a496	1370	const BYTE dir / Ptr to directory entry */
Sissors	7:da1f3328a496	1371	)
Sissors	7:da1f3328a496	1372	{
Sissors	7:da1f3328a496	1373	BYTE sum = 0;
Sissors	7:da1f3328a496	1374	UINT n = 11;
Sissors	7:da1f3328a496	1375
Sissors	7:da1f3328a496	1376	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
Sissors	7:da1f3328a496	1377	return sum;
Sissors	7:da1f3328a496	1378	}
Sissors	7:da1f3328a496	1379	#endif
Sissors	7:da1f3328a496	1380
Sissors	7:da1f3328a496	1381
Sissors	7:da1f3328a496	1382
Sissors	7:da1f3328a496	1383
Sissors	7:da1f3328a496	1384	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1385	/* Directory handling - Find an object in the directory */
Sissors	7:da1f3328a496	1386	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1387
Sissors	7:da1f3328a496	1388	static
Sissors	7:da1f3328a496	1389	FRESULT dir_find (
Sissors	7:da1f3328a496	1390	FATFS_DIR dj / Pointer to the directory object linked to the file name */
Sissors	7:da1f3328a496	1391	)
Sissors	7:da1f3328a496	1392	{
Sissors	7:da1f3328a496	1393	FRESULT res;
Sissors	7:da1f3328a496	1394	BYTE c, *dir;
Sissors	7:da1f3328a496	1395	#if _USE_LFN
Sissors	7:da1f3328a496	1396	BYTE a, ord, sum;
Sissors	7:da1f3328a496	1397	#endif
Sissors	7:da1f3328a496	1398
Sissors	7:da1f3328a496	1399	res = dir_sdi(dj, 0); /* Rewind directory object */
Sissors	7:da1f3328a496	1400	if (res != FR_OK) return res;
Sissors	7:da1f3328a496	1401
Sissors	7:da1f3328a496	1402	#if _USE_LFN
Sissors	7:da1f3328a496	1403	ord = sum = 0xFF;
Sissors	7:da1f3328a496	1404	#endif
Sissors	7:da1f3328a496	1405	do {
Sissors	7:da1f3328a496	1406	res = move_window(dj->fs, dj->sect);
Sissors	7:da1f3328a496	1407	if (res != FR_OK) break;
Sissors	7:da1f3328a496	1408	dir = dj->dir; /* Ptr to the directory entry of current index */
Sissors	7:da1f3328a496	1409	c = dir[DIR_Name];
Sissors	7:da1f3328a496	1410	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
Sissors	7:da1f3328a496	1411	#if _USE_LFN /* LFN configuration */
Sissors	7:da1f3328a496	1412	a = dir[DIR_Attr] & AM_MASK;
Sissors	7:da1f3328a496	1413	if (c == DDE \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
Sissors	7:da1f3328a496	1414	ord = 0xFF;
Sissors	7:da1f3328a496	1415	} else {
Sissors	7:da1f3328a496	1416	if (a == AM_LFN) { /* An LFN entry is found */
Sissors	7:da1f3328a496	1417	if (dj->lfn) {
Sissors	7:da1f3328a496	1418	if (c & LLE) { /* Is it start of LFN sequence? */
Sissors	7:da1f3328a496	1419	sum = dir[LDIR_Chksum];
Sissors	7:da1f3328a496	1420	c &= ~LLE; ord = c; /* LFN start order */
Sissors	7:da1f3328a496	1421	dj->lfn_idx = dj->index;
Sissors	7:da1f3328a496	1422	}
Sissors	7:da1f3328a496	1423	/* Check validity of the LFN entry and compare it with given name */
Sissors	7:da1f3328a496	1424	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
Sissors	7:da1f3328a496	1425	}
Sissors	7:da1f3328a496	1426	} else { /* An SFN entry is found */
Sissors	7:da1f3328a496	1427	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
Sissors	7:da1f3328a496	1428	ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */
Sissors	7:da1f3328a496	1429	if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */
Sissors	7:da1f3328a496	1430	}
Sissors	7:da1f3328a496	1431	}
Sissors	7:da1f3328a496	1432	#else /* Non LFN configuration */
Sissors	7:da1f3328a496	1433	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
Sissors	7:da1f3328a496	1434	break;
Sissors	7:da1f3328a496	1435	#endif
Sissors	7:da1f3328a496	1436	res = dir_next(dj, 0); /* Next entry */
Sissors	7:da1f3328a496	1437	} while (res == FR_OK);
Sissors	7:da1f3328a496	1438
Sissors	7:da1f3328a496	1439	return res;
Sissors	7:da1f3328a496	1440	}
Sissors	7:da1f3328a496	1441
Sissors	7:da1f3328a496	1442
Sissors	7:da1f3328a496	1443
Sissors	7:da1f3328a496	1444
Sissors	7:da1f3328a496	1445	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1446	/* Read an object from the directory */
Sissors	7:da1f3328a496	1447	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1448	#if _FS_MINIMIZE <= 1
Sissors	7:da1f3328a496	1449	static
Sissors	7:da1f3328a496	1450	FRESULT dir_read (
Sissors	7:da1f3328a496	1451	FATFS_DIR dj / Pointer to the directory object that pointing the entry to be read */
Sissors	7:da1f3328a496	1452	)
Sissors	7:da1f3328a496	1453	{
Sissors	7:da1f3328a496	1454	FRESULT res;
Sissors	7:da1f3328a496	1455	BYTE c, *dir;
Sissors	7:da1f3328a496	1456	#if _USE_LFN
Sissors	7:da1f3328a496	1457	BYTE a, ord = 0xFF, sum = 0xFF;
Sissors	7:da1f3328a496	1458	#endif
Sissors	7:da1f3328a496	1459
Sissors	7:da1f3328a496	1460	res = FR_NO_FILE;
Sissors	7:da1f3328a496	1461	while (dj->sect) {
Sissors	7:da1f3328a496	1462	res = move_window(dj->fs, dj->sect);
Sissors	7:da1f3328a496	1463	if (res != FR_OK) break;
Sissors	7:da1f3328a496	1464	dir = dj->dir; /* Ptr to the directory entry of current index */
Sissors	7:da1f3328a496	1465	c = dir[DIR_Name];
Sissors	7:da1f3328a496	1466	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
Sissors	7:da1f3328a496	1467	#if _USE_LFN /* LFN configuration */
Sissors	7:da1f3328a496	1468	a = dir[DIR_Attr] & AM_MASK;
Sissors	7:da1f3328a496	1469	if (c == DDE \|\| (!_FS_RPATH && c == '.') \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
Sissors	7:da1f3328a496	1470	ord = 0xFF;
Sissors	7:da1f3328a496	1471	} else {
Sissors	7:da1f3328a496	1472	if (a == AM_LFN) { /* An LFN entry is found */
Sissors	7:da1f3328a496	1473	if (c & LLE) { /* Is it start of LFN sequence? */
Sissors	7:da1f3328a496	1474	sum = dir[LDIR_Chksum];
Sissors	7:da1f3328a496	1475	c &= ~LLE; ord = c;
Sissors	7:da1f3328a496	1476	dj->lfn_idx = dj->index;
Sissors	7:da1f3328a496	1477	}
Sissors	7:da1f3328a496	1478	/* Check LFN validity and capture it */
Sissors	7:da1f3328a496	1479	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
Sissors	7:da1f3328a496	1480	} else { /* An SFN entry is found */
Sissors	7:da1f3328a496	1481	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
Sissors	7:da1f3328a496	1482	dj->lfn_idx = 0xFFFF; /* It has no LFN. */
Sissors	7:da1f3328a496	1483	break;
Sissors	7:da1f3328a496	1484	}
Sissors	7:da1f3328a496	1485	}
Sissors	7:da1f3328a496	1486	#else /* Non LFN configuration */
Sissors	7:da1f3328a496	1487	if (c != DDE && (_FS_RPATH \|\| c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
Sissors	7:da1f3328a496	1488	break;
Sissors	7:da1f3328a496	1489	#endif
Sissors	7:da1f3328a496	1490	res = dir_next(dj, 0); /* Next entry */
Sissors	7:da1f3328a496	1491	if (res != FR_OK) break;
Sissors	7:da1f3328a496	1492	}
Sissors	7:da1f3328a496	1493
Sissors	7:da1f3328a496	1494	if (res != FR_OK) dj->sect = 0;
Sissors	7:da1f3328a496	1495
Sissors	7:da1f3328a496	1496	return res;
Sissors	7:da1f3328a496	1497	}
Sissors	7:da1f3328a496	1498	#endif
Sissors	7:da1f3328a496	1499
Sissors	7:da1f3328a496	1500
Sissors	7:da1f3328a496	1501
Sissors	7:da1f3328a496	1502	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1503	/* Register an object to the directory */
Sissors	7:da1f3328a496	1504	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1505	#if !_FS_READONLY
Sissors	7:da1f3328a496	1506	static
Sissors	7:da1f3328a496	1507	FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
Sissors	7:da1f3328a496	1508	FATFS_DIR dj / Target directory with object name to be created */
Sissors	7:da1f3328a496	1509	)
Sissors	7:da1f3328a496	1510	{
Sissors	7:da1f3328a496	1511	FRESULT res;
Sissors	7:da1f3328a496	1512	BYTE c, *dir;
Sissors	7:da1f3328a496	1513	#if _USE_LFN /* LFN configuration */
Sissors	7:da1f3328a496	1514	WORD n, ne, is;
Sissors	7:da1f3328a496	1515	BYTE sn[12], *fn, sum;
Sissors	7:da1f3328a496	1516	WCHAR *lfn;
Sissors	7:da1f3328a496	1517
Sissors	7:da1f3328a496	1518
Sissors	7:da1f3328a496	1519	fn = dj->fn; lfn = dj->lfn;
Sissors	7:da1f3328a496	1520	mem_cpy(sn, fn, 12);
Sissors	7:da1f3328a496	1521
Sissors	7:da1f3328a496	1522	if (_FS_RPATH && (sn[NS] & NS_DOT)) /* Cannot create dot entry */
Sissors	7:da1f3328a496	1523	return FR_INVALID_NAME;
Sissors	7:da1f3328a496	1524
Sissors	7:da1f3328a496	1525	if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
Sissors	7:da1f3328a496	1526	fn[NS] = 0; dj->lfn = 0; /* Find only SFN */
Sissors	7:da1f3328a496	1527	for (n = 1; n < 100; n++) {
Sissors	7:da1f3328a496	1528	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
Sissors	7:da1f3328a496	1529	res = dir_find(dj); /* Check if the name collides with existing SFN */
Sissors	7:da1f3328a496	1530	if (res != FR_OK) break;
Sissors	7:da1f3328a496	1531	}
Sissors	7:da1f3328a496	1532	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
Sissors	7:da1f3328a496	1533	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
Sissors	7:da1f3328a496	1534	fn[NS] = sn[NS]; dj->lfn = lfn;
Sissors	7:da1f3328a496	1535	}
Sissors	7:da1f3328a496	1536
Sissors	7:da1f3328a496	1537	if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve an SFN + LFN entries. */
Sissors	7:da1f3328a496	1538	for (ne = 0; lfn[ne]; ne++) ;
Sissors	7:da1f3328a496	1539	ne = (ne + 25) / 13;
Sissors	7:da1f3328a496	1540	} else { /* Otherwise reserve only an SFN entry. */
Sissors	7:da1f3328a496	1541	ne = 1;
Sissors	7:da1f3328a496	1542	}
Sissors	7:da1f3328a496	1543
Sissors	7:da1f3328a496	1544	/* Reserve contiguous entries */
Sissors	7:da1f3328a496	1545	res = dir_sdi(dj, 0);
Sissors	7:da1f3328a496	1546	if (res != FR_OK) return res;
Sissors	7:da1f3328a496	1547	n = is = 0;
Sissors	7:da1f3328a496	1548	do {
Sissors	7:da1f3328a496	1549	res = move_window(dj->fs, dj->sect);
Sissors	7:da1f3328a496	1550	if (res != FR_OK) break;
Sissors	7:da1f3328a496	1551	c = dj->dir; / Check the entry status */
Sissors	7:da1f3328a496	1552	if (c == DDE \|\| c == 0) { /* Is it a blank entry? */
Sissors	7:da1f3328a496	1553	if (n == 0) is = dj->index; /* First index of the contiguous entry */
Sissors	7:da1f3328a496	1554	if (++n == ne) break; /* A contiguous entry that required count is found */
Sissors	7:da1f3328a496	1555	} else {
Sissors	7:da1f3328a496	1556	n = 0; /* Not a blank entry. Restart to search */
Sissors	7:da1f3328a496	1557	}
Sissors	7:da1f3328a496	1558	res = dir_next(dj, 1); /* Next entry with table stretch */
Sissors	7:da1f3328a496	1559	} while (res == FR_OK);
Sissors	7:da1f3328a496	1560
Sissors	7:da1f3328a496	1561	if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */
Sissors	7:da1f3328a496	1562	res = dir_sdi(dj, is);
Sissors	7:da1f3328a496	1563	if (res == FR_OK) {
Sissors	7:da1f3328a496	1564	sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */
Sissors	7:da1f3328a496	1565	ne--;
Sissors	7:da1f3328a496	1566	do { /* Store LFN entries in bottom first */
Sissors	7:da1f3328a496	1567	res = move_window(dj->fs, dj->sect);
Sissors	7:da1f3328a496	1568	if (res != FR_OK) break;
Sissors	7:da1f3328a496	1569	fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
Sissors	7:da1f3328a496	1570	dj->fs->wflag = 1;
Sissors	7:da1f3328a496	1571	res = dir_next(dj, 0); /* Next entry */
Sissors	7:da1f3328a496	1572	} while (res == FR_OK && --ne);
Sissors	7:da1f3328a496	1573	}
Sissors	7:da1f3328a496	1574	}
Sissors	7:da1f3328a496	1575
Sissors	7:da1f3328a496	1576	#else /* Non LFN configuration */
Sissors	7:da1f3328a496	1577	res = dir_sdi(dj, 0);
Sissors	7:da1f3328a496	1578	if (res == FR_OK) {
Sissors	7:da1f3328a496	1579	do { /* Find a blank entry for the SFN */
Sissors	7:da1f3328a496	1580	res = move_window(dj->fs, dj->sect);
Sissors	7:da1f3328a496	1581	if (res != FR_OK) break;
Sissors	7:da1f3328a496	1582	c = *dj->dir;
Sissors	7:da1f3328a496	1583	if (c == DDE \|\| c == 0) break; /* Is it a blank entry? */
Sissors	7:da1f3328a496	1584	res = dir_next(dj, 1); /* Next entry with table stretch */
Sissors	7:da1f3328a496	1585	} while (res == FR_OK);
Sissors	7:da1f3328a496	1586	}
Sissors	7:da1f3328a496	1587	#endif
Sissors	7:da1f3328a496	1588
Sissors	7:da1f3328a496	1589	if (res == FR_OK) { /* Initialize the SFN entry */
Sissors	7:da1f3328a496	1590	res = move_window(dj->fs, dj->sect);
Sissors	7:da1f3328a496	1591	if (res == FR_OK) {
Sissors	7:da1f3328a496	1592	dir = dj->dir;
Sissors	7:da1f3328a496	1593	mem_set(dir, 0, SZ_DIR); /* Clean the entry */
Sissors	7:da1f3328a496	1594	mem_cpy(dir, dj->fn, 11); /* Put SFN */
Sissors	7:da1f3328a496	1595	#if _USE_LFN
Sissors	7:da1f3328a496	1596	dir[DIR_NTres] = (dj->fn+NS) & (NS_BODY \| NS_EXT); / Put NT flag */
Sissors	7:da1f3328a496	1597	#endif
Sissors	7:da1f3328a496	1598	dj->fs->wflag = 1;
Sissors	7:da1f3328a496	1599	}
Sissors	7:da1f3328a496	1600	}
Sissors	7:da1f3328a496	1601
Sissors	7:da1f3328a496	1602	return res;
Sissors	7:da1f3328a496	1603	}
Sissors	7:da1f3328a496	1604	#endif /* !_FS_READONLY */
Sissors	7:da1f3328a496	1605
Sissors	7:da1f3328a496	1606
Sissors	7:da1f3328a496	1607
Sissors	7:da1f3328a496	1608
Sissors	7:da1f3328a496	1609	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1610	/* Remove an object from the directory */
Sissors	7:da1f3328a496	1611	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1612	#if !_FS_READONLY && !_FS_MINIMIZE
Sissors	7:da1f3328a496	1613	static
Sissors	7:da1f3328a496	1614	FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
Sissors	7:da1f3328a496	1615	FATFS_DIR dj / Directory object pointing the entry to be removed */
Sissors	7:da1f3328a496	1616	)
Sissors	7:da1f3328a496	1617	{
Sissors	7:da1f3328a496	1618	FRESULT res;
Sissors	7:da1f3328a496	1619	#if _USE_LFN /* LFN configuration */
Sissors	7:da1f3328a496	1620	WORD i;
Sissors	7:da1f3328a496	1621
Sissors	7:da1f3328a496	1622	i = dj->index; /* SFN index */
Sissors	7:da1f3328a496	1623	res = dir_sdi(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */
Sissors	7:da1f3328a496	1624	if (res == FR_OK) {
Sissors	7:da1f3328a496	1625	do {
Sissors	7:da1f3328a496	1626	res = move_window(dj->fs, dj->sect);
Sissors	7:da1f3328a496	1627	if (res != FR_OK) break;
Sissors	7:da1f3328a496	1628	dj->dir = DDE; / Mark the entry "deleted" */
Sissors	7:da1f3328a496	1629	dj->fs->wflag = 1;
Sissors	7:da1f3328a496	1630	if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
Sissors	7:da1f3328a496	1631	res = dir_next(dj, 0); /* Next entry */
Sissors	7:da1f3328a496	1632	} while (res == FR_OK);
Sissors	7:da1f3328a496	1633	if (res == FR_NO_FILE) res = FR_INT_ERR;
Sissors	7:da1f3328a496	1634	}
Sissors	7:da1f3328a496	1635
Sissors	7:da1f3328a496	1636	#else /* Non LFN configuration */
Sissors	7:da1f3328a496	1637	res = dir_sdi(dj, dj->index);
Sissors	7:da1f3328a496	1638	if (res == FR_OK) {
Sissors	7:da1f3328a496	1639	res = move_window(dj->fs, dj->sect);
Sissors	7:da1f3328a496	1640	if (res == FR_OK) {
Sissors	7:da1f3328a496	1641	dj->dir = DDE; / Mark the entry "deleted" */
Sissors	7:da1f3328a496	1642	dj->fs->wflag = 1;
Sissors	7:da1f3328a496	1643	}
Sissors	7:da1f3328a496	1644	}
Sissors	7:da1f3328a496	1645	#endif
Sissors	7:da1f3328a496	1646
Sissors	7:da1f3328a496	1647	return res;
Sissors	7:da1f3328a496	1648	}
Sissors	7:da1f3328a496	1649	#endif /* !_FS_READONLY */
Sissors	7:da1f3328a496	1650
Sissors	7:da1f3328a496	1651
Sissors	7:da1f3328a496	1652
Sissors	7:da1f3328a496	1653
Sissors	7:da1f3328a496	1654	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1655	/* Pick a segment and create the object name in directory form */
Sissors	7:da1f3328a496	1656	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1657
Sissors	7:da1f3328a496	1658	static
Sissors	7:da1f3328a496	1659	FRESULT create_name (
Sissors	7:da1f3328a496	1660	FATFS_DIR dj, / Pointer to the directory object */
Sissors	7:da1f3328a496	1661	const TCHAR *path / Pointer to pointer to the segment in the path string */
Sissors	7:da1f3328a496	1662	)
Sissors	7:da1f3328a496	1663	{
Sissors	7:da1f3328a496	1664	#ifdef _EXCVT
Sissors	7:da1f3328a496	1665	static const BYTE excvt[] = _EXCVT; /* Upper conversion table for extended chars */
Sissors	7:da1f3328a496	1666	#endif
Sissors	7:da1f3328a496	1667
Sissors	7:da1f3328a496	1668	#if _USE_LFN /* LFN configuration */
Sissors	7:da1f3328a496	1669	BYTE b, cf;
Sissors	7:da1f3328a496	1670	WCHAR w, *lfn;
Sissors	7:da1f3328a496	1671	UINT i, ni, si, di;
Sissors	7:da1f3328a496	1672	const TCHAR *p;
Sissors	7:da1f3328a496	1673
Sissors	7:da1f3328a496	1674	/* Create LFN in Unicode */
Sissors	7:da1f3328a496	1675	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
Sissors	7:da1f3328a496	1676	lfn = dj->lfn;
Sissors	7:da1f3328a496	1677	si = di = 0;
Sissors	7:da1f3328a496	1678	for (;;) {
Sissors	7:da1f3328a496	1679	w = p[si++]; /* Get a character */
Sissors	7:da1f3328a496	1680	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
Sissors	7:da1f3328a496	1681	if (di >= _MAX_LFN) /* Reject too long name */
Sissors	7:da1f3328a496	1682	return FR_INVALID_NAME;
Sissors	7:da1f3328a496	1683	#if !_LFN_UNICODE
Sissors	7:da1f3328a496	1684	w &= 0xFF;
Sissors	7:da1f3328a496	1685	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
Sissors	7:da1f3328a496	1686	b = (BYTE)p[si++]; /* Get 2nd byte */
Sissors	7:da1f3328a496	1687	if (!IsDBCS2(b))
Sissors	7:da1f3328a496	1688	return FR_INVALID_NAME; /* Reject invalid sequence */
Sissors	7:da1f3328a496	1689	w = (w << 8) + b; /* Create a DBC */
Sissors	7:da1f3328a496	1690	}
Sissors	7:da1f3328a496	1691	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
Sissors	7:da1f3328a496	1692	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
Sissors	7:da1f3328a496	1693	#endif
Sissors	7:da1f3328a496	1694	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal chars for LFN */
Sissors	7:da1f3328a496	1695	return FR_INVALID_NAME;
Sissors	7:da1f3328a496	1696	lfn[di++] = w; /* Store the Unicode char */
Sissors	7:da1f3328a496	1697	}
Sissors	7:da1f3328a496	1698	path = &p[si]; / Return pointer to the next segment */
Sissors	7:da1f3328a496	1699	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
Sissors	7:da1f3328a496	1700	#if _FS_RPATH
Sissors	7:da1f3328a496	1701	if ((di == 1 && lfn[di-1] == '.') \|\| /* Is this a dot entry? */
Sissors	7:da1f3328a496	1702	(di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
Sissors	7:da1f3328a496	1703	lfn[di] = 0;
Sissors	7:da1f3328a496	1704	for (i = 0; i < 11; i++)
Sissors	7:da1f3328a496	1705	dj->fn[i] = (i < di) ? '.' : ' ';
Sissors	7:da1f3328a496	1706	dj->fn[i] = cf \| NS_DOT; /* This is a dot entry */
Sissors	7:da1f3328a496	1707	return FR_OK;
Sissors	7:da1f3328a496	1708	}
Sissors	7:da1f3328a496	1709	#endif
Sissors	7:da1f3328a496	1710	while (di) { /* Strip trailing spaces and dots */
Sissors	7:da1f3328a496	1711	w = lfn[di-1];
Sissors	7:da1f3328a496	1712	if (w != ' ' && w != '.') break;
Sissors	7:da1f3328a496	1713	di--;
Sissors	7:da1f3328a496	1714	}
Sissors	7:da1f3328a496	1715	if (!di) return FR_INVALID_NAME; /* Reject nul string */
Sissors	7:da1f3328a496	1716
Sissors	7:da1f3328a496	1717	lfn[di] = 0; /* LFN is created */
Sissors	7:da1f3328a496	1718
Sissors	7:da1f3328a496	1719	/* Create SFN in directory form */
Sissors	7:da1f3328a496	1720	mem_set(dj->fn, ' ', 11);
Sissors	7:da1f3328a496	1721	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
Sissors	7:da1f3328a496	1722	if (si) cf \|= NS_LOSS \| NS_LFN;
Sissors	7:da1f3328a496	1723	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
Sissors	7:da1f3328a496	1724
Sissors	7:da1f3328a496	1725	b = i = 0; ni = 8;
Sissors	7:da1f3328a496	1726	for (;;) {
Sissors	7:da1f3328a496	1727	w = lfn[si++]; /* Get an LFN char */
Sissors	7:da1f3328a496	1728	if (!w) break; /* Break on end of the LFN */
Sissors	7:da1f3328a496	1729	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
Sissors	7:da1f3328a496	1730	cf \|= NS_LOSS \| NS_LFN; continue;
Sissors	7:da1f3328a496	1731	}
Sissors	7:da1f3328a496	1732
Sissors	7:da1f3328a496	1733	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
Sissors	7:da1f3328a496	1734	if (ni == 11) { /* Long extension */
Sissors	7:da1f3328a496	1735	cf \|= NS_LOSS \| NS_LFN; break;
Sissors	7:da1f3328a496	1736	}
Sissors	7:da1f3328a496	1737	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
Sissors	7:da1f3328a496	1738	if (si > di) break; /* No extension */
Sissors	7:da1f3328a496	1739	si = di; i = 8; ni = 11; /* Enter extension section */
Sissors	7:da1f3328a496	1740	b <<= 2; continue;
Sissors	7:da1f3328a496	1741	}
Sissors	7:da1f3328a496	1742
Sissors	7:da1f3328a496	1743	if (w >= 0x80) { /* Non ASCII char */
Sissors	7:da1f3328a496	1744	#ifdef _EXCVT
Sissors	7:da1f3328a496	1745	w = ff_convert(w, 0); /* Unicode -> OEM code */
Sissors	7:da1f3328a496	1746	if (w) w = excvt[w - 0x80]; /* Convert extended char to upper (SBCS) */
Sissors	7:da1f3328a496	1747	#else
Sissors	7:da1f3328a496	1748	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
Sissors	7:da1f3328a496	1749	#endif
Sissors	7:da1f3328a496	1750	cf \|= NS_LFN; /* Force create LFN entry */
Sissors	7:da1f3328a496	1751	}
Sissors	7:da1f3328a496	1752
Sissors	7:da1f3328a496	1753	if (_DF1S && w >= 0x100) { /* Double byte char (always false on SBCS cfg) */
Sissors	7:da1f3328a496	1754	if (i >= ni - 1) {
Sissors	7:da1f3328a496	1755	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
Sissors	7:da1f3328a496	1756	}
Sissors	7:da1f3328a496	1757	dj->fn[i++] = (BYTE)(w >> 8);
Sissors	7:da1f3328a496	1758	} else { /* Single byte char */
Sissors	7:da1f3328a496	1759	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal chars for SFN */
Sissors	7:da1f3328a496	1760	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
Sissors	7:da1f3328a496	1761	} else {
Sissors	7:da1f3328a496	1762	if (IsUpper(w)) { /* ASCII large capital */
Sissors	7:da1f3328a496	1763	b \|= 2;
Sissors	7:da1f3328a496	1764	} else {
Sissors	7:da1f3328a496	1765	if (IsLower(w)) { /* ASCII small capital */
Sissors	7:da1f3328a496	1766	b \|= 1; w -= 0x20;
Sissors	7:da1f3328a496	1767	}
Sissors	7:da1f3328a496	1768	}
Sissors	7:da1f3328a496	1769	}
Sissors	7:da1f3328a496	1770	}
Sissors	7:da1f3328a496	1771	dj->fn[i++] = (BYTE)w;
Sissors	7:da1f3328a496	1772	}
Sissors	7:da1f3328a496	1773
Sissors	7:da1f3328a496	1774	if (dj->fn[0] == DDE) dj->fn[0] = NDDE; /* If the first char collides with deleted mark, replace it with 0x05 */
Sissors	7:da1f3328a496	1775
Sissors	7:da1f3328a496	1776	if (ni == 8) b <<= 2;
Sissors	7:da1f3328a496	1777	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
Sissors	7:da1f3328a496	1778	cf \|= NS_LFN;
Sissors	7:da1f3328a496	1779	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */
Sissors	7:da1f3328a496	1780	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
Sissors	7:da1f3328a496	1781	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
Sissors	7:da1f3328a496	1782	}
Sissors	7:da1f3328a496	1783
Sissors	7:da1f3328a496	1784	dj->fn[NS] = cf; /* SFN is created */
Sissors	7:da1f3328a496	1785
Sissors	7:da1f3328a496	1786	return FR_OK;
Sissors	7:da1f3328a496	1787
Sissors	7:da1f3328a496	1788
Sissors	7:da1f3328a496	1789	#else /* Non-LFN configuration */
Sissors	7:da1f3328a496	1790	BYTE b, c, d, *sfn;
Sissors	7:da1f3328a496	1791	UINT ni, si, i;
Sissors	7:da1f3328a496	1792	const char *p;
Sissors	7:da1f3328a496	1793
Sissors	7:da1f3328a496	1794	/* Create file name in directory form */
Sissors	7:da1f3328a496	1795	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
Sissors	7:da1f3328a496	1796	sfn = dj->fn;
Sissors	7:da1f3328a496	1797	mem_set(sfn, ' ', 11);
Sissors	7:da1f3328a496	1798	si = i = b = 0; ni = 8;
Sissors	7:da1f3328a496	1799	#if _FS_RPATH
Sissors	7:da1f3328a496	1800	if (p[si] == '.') { /* Is this a dot entry? */
Sissors	7:da1f3328a496	1801	for (;;) {
Sissors	7:da1f3328a496	1802	c = (BYTE)p[si++];
Sissors	7:da1f3328a496	1803	if (c != '.' \|\| si >= 3) break;
Sissors	7:da1f3328a496	1804	sfn[i++] = c;
Sissors	7:da1f3328a496	1805	}
Sissors	7:da1f3328a496	1806	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
Sissors	7:da1f3328a496	1807	path = &p[si]; / Return pointer to the next segment */
Sissors	7:da1f3328a496	1808	sfn[NS] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
Sissors	7:da1f3328a496	1809	return FR_OK;
Sissors	7:da1f3328a496	1810	}
Sissors	7:da1f3328a496	1811	#endif
Sissors	7:da1f3328a496	1812	for (;;) {
Sissors	7:da1f3328a496	1813	c = (BYTE)p[si++];
Sissors	7:da1f3328a496	1814	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
Sissors	7:da1f3328a496	1815	if (c == '.' \|\| i >= ni) {
Sissors	7:da1f3328a496	1816	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
Sissors	7:da1f3328a496	1817	i = 8; ni = 11;
Sissors	7:da1f3328a496	1818	b <<= 2; continue;
Sissors	7:da1f3328a496	1819	}
Sissors	7:da1f3328a496	1820	if (c >= 0x80) { /* Extended char? */
Sissors	7:da1f3328a496	1821	b \|= 3; /* Eliminate NT flag */
Sissors	7:da1f3328a496	1822	#ifdef _EXCVT
Sissors	7:da1f3328a496	1823	c = excvt[c - 0x80]; /* Upper conversion (SBCS) */
Sissors	7:da1f3328a496	1824	#else
Sissors	7:da1f3328a496	1825	#if !_DF1S /* ASCII only cfg */
Sissors	7:da1f3328a496	1826	return FR_INVALID_NAME;
Sissors	7:da1f3328a496	1827	#endif
Sissors	7:da1f3328a496	1828	#endif
Sissors	7:da1f3328a496	1829	}
Sissors	7:da1f3328a496	1830	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
Sissors	7:da1f3328a496	1831	d = (BYTE)p[si++]; /* Get 2nd byte */
Sissors	7:da1f3328a496	1832	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
Sissors	7:da1f3328a496	1833	return FR_INVALID_NAME;
Sissors	7:da1f3328a496	1834	sfn[i++] = c;
Sissors	7:da1f3328a496	1835	sfn[i++] = d;
Sissors	7:da1f3328a496	1836	} else { /* Single byte code */
Sissors	7:da1f3328a496	1837	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
Sissors	7:da1f3328a496	1838	return FR_INVALID_NAME;
Sissors	7:da1f3328a496	1839	if (IsUpper(c)) { /* ASCII large capital? */
Sissors	7:da1f3328a496	1840	b \|= 2;
Sissors	7:da1f3328a496	1841	} else {
Sissors	7:da1f3328a496	1842	if (IsLower(c)) { /* ASCII small capital? */
Sissors	7:da1f3328a496	1843	b \|= 1; c -= 0x20;
Sissors	7:da1f3328a496	1844	}
Sissors	7:da1f3328a496	1845	}
Sissors	7:da1f3328a496	1846	sfn[i++] = c;
Sissors	7:da1f3328a496	1847	}
Sissors	7:da1f3328a496	1848	}
Sissors	7:da1f3328a496	1849	path = &p[si]; / Return pointer to the next segment */
Sissors	7:da1f3328a496	1850	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
Sissors	7:da1f3328a496	1851
Sissors	7:da1f3328a496	1852	if (!i) return FR_INVALID_NAME; /* Reject nul string */
Sissors	7:da1f3328a496	1853	if (sfn[0] == DDE) sfn[0] = NDDE; /* When first char collides with DDE, replace it with 0x05 */
Sissors	7:da1f3328a496	1854
Sissors	7:da1f3328a496	1855	if (ni == 8) b <<= 2;
Sissors	7:da1f3328a496	1856	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
Sissors	7:da1f3328a496	1857	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
Sissors	7:da1f3328a496	1858
Sissors	7:da1f3328a496	1859	sfn[NS] = c; /* Store NT flag, File name is created */
Sissors	7:da1f3328a496	1860
Sissors	7:da1f3328a496	1861	return FR_OK;
Sissors	7:da1f3328a496	1862	#endif
Sissors	7:da1f3328a496	1863	}
Sissors	7:da1f3328a496	1864
Sissors	7:da1f3328a496	1865
Sissors	7:da1f3328a496	1866
Sissors	7:da1f3328a496	1867
Sissors	7:da1f3328a496	1868	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1869	/* Get file information from directory entry */
Sissors	7:da1f3328a496	1870	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1871	#if _FS_MINIMIZE <= 1
Sissors	7:da1f3328a496	1872	static
Sissors	7:da1f3328a496	1873	void get_fileinfo ( /* No return code */
Sissors	7:da1f3328a496	1874	FATFS_DIR dj, / Pointer to the directory object */
Sissors	7:da1f3328a496	1875	FILINFO fno / Pointer to the file information to be filled */
Sissors	7:da1f3328a496	1876	)
Sissors	7:da1f3328a496	1877	{
Sissors	7:da1f3328a496	1878	UINT i;
Sissors	7:da1f3328a496	1879	BYTE nt, *dir;
Sissors	7:da1f3328a496	1880	TCHAR *p, c;
Sissors	7:da1f3328a496	1881
Sissors	7:da1f3328a496	1882
Sissors	7:da1f3328a496	1883	p = fno->fname;
Sissors	7:da1f3328a496	1884	if (dj->sect) {
Sissors	7:da1f3328a496	1885	dir = dj->dir;
Sissors	7:da1f3328a496	1886	nt = dir[DIR_NTres]; /* NT flag */
Sissors	7:da1f3328a496	1887	for (i = 0; i < 8; i++) { /* Copy name body */
Sissors	7:da1f3328a496	1888	c = dir[i];
Sissors	7:da1f3328a496	1889	if (c == ' ') break;
Sissors	7:da1f3328a496	1890	if (c == NDDE) c = (TCHAR)DDE;
Sissors	7:da1f3328a496	1891	if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
Sissors	7:da1f3328a496	1892	#if _LFN_UNICODE
Sissors	7:da1f3328a496	1893	if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i+1]))
Sissors	7:da1f3328a496	1894	c = (c << 8) \| dir[++i];
Sissors	7:da1f3328a496	1895	c = ff_convert(c, 1);
Sissors	7:da1f3328a496	1896	if (!c) c = '?';
Sissors	7:da1f3328a496	1897	#endif
Sissors	7:da1f3328a496	1898	*p++ = c;
Sissors	7:da1f3328a496	1899	}
Sissors	7:da1f3328a496	1900	if (dir[8] != ' ') { /* Copy name extension */
Sissors	7:da1f3328a496	1901	*p++ = '.';
Sissors	7:da1f3328a496	1902	for (i = 8; i < 11; i++) {
Sissors	7:da1f3328a496	1903	c = dir[i];
Sissors	7:da1f3328a496	1904	if (c == ' ') break;
Sissors	7:da1f3328a496	1905	if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
Sissors	7:da1f3328a496	1906	#if _LFN_UNICODE
Sissors	7:da1f3328a496	1907	if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i+1]))
Sissors	7:da1f3328a496	1908	c = (c << 8) \| dir[++i];
Sissors	7:da1f3328a496	1909	c = ff_convert(c, 1);
Sissors	7:da1f3328a496	1910	if (!c) c = '?';
Sissors	7:da1f3328a496	1911	#endif
Sissors	7:da1f3328a496	1912	*p++ = c;
Sissors	7:da1f3328a496	1913	}
Sissors	7:da1f3328a496	1914	}
Sissors	7:da1f3328a496	1915	fno->fattrib = dir[DIR_Attr]; /* Attribute */
Sissors	7:da1f3328a496	1916	fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
Sissors	7:da1f3328a496	1917	fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
Sissors	7:da1f3328a496	1918	fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
Sissors	7:da1f3328a496	1919	}
Sissors	7:da1f3328a496	1920	p = 0; / Terminate SFN str by a \0 */
Sissors	7:da1f3328a496	1921
Sissors	7:da1f3328a496	1922	#if _USE_LFN
Sissors	7:da1f3328a496	1923	if (fno->lfname && fno->lfsize) {
Sissors	7:da1f3328a496	1924	TCHAR *tp = fno->lfname;
Sissors	7:da1f3328a496	1925	WCHAR w, *lfn;
Sissors	7:da1f3328a496	1926
Sissors	7:da1f3328a496	1927	i = 0;
Sissors	7:da1f3328a496	1928	if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
Sissors	7:da1f3328a496	1929	lfn = dj->lfn;
Sissors	7:da1f3328a496	1930	while ((w = lfn++) != 0) { / Get an LFN char */
Sissors	7:da1f3328a496	1931	#if !_LFN_UNICODE
Sissors	7:da1f3328a496	1932	w = ff_convert(w, 0); /* Unicode -> OEM conversion */
Sissors	7:da1f3328a496	1933	if (!w) { i = 0; break; } /* Could not convert, no LFN */
Sissors	7:da1f3328a496	1934	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
Sissors	7:da1f3328a496	1935	tp[i++] = (TCHAR)(w >> 8);
Sissors	7:da1f3328a496	1936	#endif
Sissors	7:da1f3328a496	1937	if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overflow, no LFN */
Sissors	7:da1f3328a496	1938	tp[i++] = (TCHAR)w;
Sissors	7:da1f3328a496	1939	}
Sissors	7:da1f3328a496	1940	}
Sissors	7:da1f3328a496	1941	tp[i] = 0; /* Terminate the LFN str by a \0 */
Sissors	7:da1f3328a496	1942	}
Sissors	7:da1f3328a496	1943	#endif
Sissors	7:da1f3328a496	1944	}
Sissors	7:da1f3328a496	1945	#endif /* _FS_MINIMIZE <= 1 */
Sissors	7:da1f3328a496	1946
Sissors	7:da1f3328a496	1947
Sissors	7:da1f3328a496	1948
Sissors	7:da1f3328a496	1949
Sissors	7:da1f3328a496	1950	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1951	/* Follow a file path */
Sissors	7:da1f3328a496	1952	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	1953
Sissors	7:da1f3328a496	1954	static
Sissors	7:da1f3328a496	1955	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
Sissors	7:da1f3328a496	1956	FATFS_DIR dj, / Directory object to return last directory and found object */
Sissors	7:da1f3328a496	1957	const TCHAR path / Full-path string to find a file or directory */
Sissors	7:da1f3328a496	1958	)
Sissors	7:da1f3328a496	1959	{
Sissors	7:da1f3328a496	1960	FRESULT res;
Sissors	7:da1f3328a496	1961	BYTE *dir, ns;
Sissors	7:da1f3328a496	1962
Sissors	7:da1f3328a496	1963
Sissors	7:da1f3328a496	1964	#if _FS_RPATH
Sissors	7:da1f3328a496	1965	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
Sissors	7:da1f3328a496	1966	path++; dj->sclust = 0; /* Strip it and start from the root dir */
Sissors	7:da1f3328a496	1967	} else { /* No heading separator */
Sissors	7:da1f3328a496	1968	dj->sclust = dj->fs->cdir; /* Start from the current dir */
Sissors	7:da1f3328a496	1969	}
Sissors	7:da1f3328a496	1970	#else
Sissors	7:da1f3328a496	1971	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
Sissors	7:da1f3328a496	1972	path++;
Sissors	7:da1f3328a496	1973	dj->sclust = 0; /* Start from the root dir */
Sissors	7:da1f3328a496	1974	#endif
Sissors	7:da1f3328a496	1975
Sissors	7:da1f3328a496	1976	if ((UINT)path < ' ') { / Nul path means the start directory itself */
Sissors	7:da1f3328a496	1977	res = dir_sdi(dj, 0);
Sissors	7:da1f3328a496	1978	dj->dir = 0;
Sissors	7:da1f3328a496	1979	} else { /* Follow path */
Sissors	7:da1f3328a496	1980	for (;;) {
Sissors	7:da1f3328a496	1981	res = create_name(dj, &path); /* Get a segment */
Sissors	7:da1f3328a496	1982	if (res != FR_OK) break;
Sissors	7:da1f3328a496	1983	res = dir_find(dj); /* Find it */
Sissors	7:da1f3328a496	1984	ns = *(dj->fn+NS);
Sissors	7:da1f3328a496	1985	if (res != FR_OK) { /* Failed to find the object */
Sissors	7:da1f3328a496	1986	if (res != FR_NO_FILE) break; /* Abort if any hard error occurred */
Sissors	7:da1f3328a496	1987	/* Object not found */
Sissors	7:da1f3328a496	1988	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exit */
Sissors	7:da1f3328a496	1989	dj->sclust = 0; dj->dir = 0; /* It is the root dir */
Sissors	7:da1f3328a496	1990	res = FR_OK;
Sissors	7:da1f3328a496	1991	if (!(ns & NS_LAST)) continue;
Sissors	7:da1f3328a496	1992	} else { /* Could not find the object */
Sissors	7:da1f3328a496	1993	if (!(ns & NS_LAST)) res = FR_NO_PATH;
Sissors	7:da1f3328a496	1994	}
Sissors	7:da1f3328a496	1995	break;
Sissors	7:da1f3328a496	1996	}
Sissors	7:da1f3328a496	1997	if (ns & NS_LAST) break; /* Last segment match. Function completed. */
Sissors	7:da1f3328a496	1998	dir = dj->dir; /* There is next segment. Follow the sub directory */
Sissors	7:da1f3328a496	1999	if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
Sissors	7:da1f3328a496	2000	res = FR_NO_PATH; break;
Sissors	7:da1f3328a496	2001	}
Sissors	7:da1f3328a496	2002	dj->sclust = ld_clust(dj->fs, dir);
Sissors	7:da1f3328a496	2003	}
Sissors	7:da1f3328a496	2004	}
Sissors	7:da1f3328a496	2005
Sissors	7:da1f3328a496	2006	return res;
Sissors	7:da1f3328a496	2007	}
Sissors	7:da1f3328a496	2008
Sissors	7:da1f3328a496	2009
Sissors	7:da1f3328a496	2010
Sissors	7:da1f3328a496	2011
Sissors	7:da1f3328a496	2012	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2013	/* Load a sector and check if it is an FAT Volume Boot Record */
Sissors	7:da1f3328a496	2014	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2015
Sissors	7:da1f3328a496	2016	static
Sissors	7:da1f3328a496	2017	BYTE check_fs ( /* 0:FAT-VBR, 1:Any BR but not FAT, 2:Not a BR, 3:Disk error */
Sissors	7:da1f3328a496	2018	FATFS fs, / File system object */
Sissors	7:da1f3328a496	2019	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
Sissors	7:da1f3328a496	2020	)
Sissors	7:da1f3328a496	2021	{
Sissors	7:da1f3328a496	2022	if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK) /* Load boot record */
Sissors	7:da1f3328a496	2023	return 3;
Sissors	7:da1f3328a496	2024	if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
Sissors	7:da1f3328a496	2025	return 2;
Sissors	7:da1f3328a496	2026
Sissors	7:da1f3328a496	2027	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
Sissors	7:da1f3328a496	2028	return 0;
Sissors	7:da1f3328a496	2029	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
Sissors	7:da1f3328a496	2030	return 0;
Sissors	7:da1f3328a496	2031
Sissors	7:da1f3328a496	2032	return 1;
Sissors	7:da1f3328a496	2033	}
Sissors	7:da1f3328a496	2034
Sissors	7:da1f3328a496	2035
Sissors	7:da1f3328a496	2036
Sissors	7:da1f3328a496	2037
Sissors	7:da1f3328a496	2038	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2039	/* Check if the file system object is valid or not */
Sissors	7:da1f3328a496	2040	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2041
Sissors	7:da1f3328a496	2042	static
Sissors	7:da1f3328a496	2043	FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occurred */
Sissors	7:da1f3328a496	2044	const TCHAR *path, / Pointer to pointer to the path name (drive number) */
Sissors	7:da1f3328a496	2045	FATFS *rfs, / Pointer to pointer to the found file system object */
Sissors	7:da1f3328a496	2046	BYTE wmode /* !=0: Check write protection for write access */
Sissors	7:da1f3328a496	2047	)
Sissors	7:da1f3328a496	2048	{
Sissors	7:da1f3328a496	2049	BYTE fmt, b, pi, *tbl;
Sissors	7:da1f3328a496	2050	UINT vol;
Sissors	7:da1f3328a496	2051	DSTATUS stat;
Sissors	7:da1f3328a496	2052	DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
Sissors	7:da1f3328a496	2053	WORD nrsv;
Sissors	7:da1f3328a496	2054	const TCHAR p = path;
Sissors	7:da1f3328a496	2055	FATFS *fs;
Sissors	7:da1f3328a496	2056
Sissors	7:da1f3328a496	2057
Sissors	7:da1f3328a496	2058	/* Get logical drive number from the path name */
Sissors	7:da1f3328a496	2059	vol = p[0] - '0'; /* Is there a drive number? */
Sissors	7:da1f3328a496	2060	if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */
Sissors	7:da1f3328a496	2061	p += 2; path = p; / Return pointer to the path name */
Sissors	7:da1f3328a496	2062	} else { /* No drive number is given */
Sissors	7:da1f3328a496	2063	#if _FS_RPATH
Sissors	7:da1f3328a496	2064	vol = CurrVol; /* Use current drive */
Sissors	7:da1f3328a496	2065	#else
Sissors	7:da1f3328a496	2066	vol = 0; /* Use drive 0 */
Sissors	7:da1f3328a496	2067	#endif
Sissors	7:da1f3328a496	2068	}
Sissors	7:da1f3328a496	2069
Sissors	7:da1f3328a496	2070	/* Check if the file system object is valid or not */
Sissors	7:da1f3328a496	2071	*rfs = 0;
Sissors	7:da1f3328a496	2072	if (vol >= _VOLUMES) /* Is the drive number valid? */
Sissors	7:da1f3328a496	2073	return FR_INVALID_DRIVE;
Sissors	7:da1f3328a496	2074	fs = FatFs[vol]; /* Get corresponding file system object */
Sissors	7:da1f3328a496	2075	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
Sissors	7:da1f3328a496	2076
Sissors	7:da1f3328a496	2077	ENTER_FF(fs); /* Lock file system */
Sissors	7:da1f3328a496	2078
Sissors	7:da1f3328a496	2079	rfs = fs; / Return pointer to the corresponding file system object */
Sissors	7:da1f3328a496	2080	if (fs->fs_type) { /* If the volume has been mounted */
Sissors	7:da1f3328a496	2081	stat = disk_status(fs->drv);
Sissors	7:da1f3328a496	2082	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */
Sissors	7:da1f3328a496	2083	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
Sissors	7:da1f3328a496	2084	return FR_WRITE_PROTECTED;
Sissors	7:da1f3328a496	2085	return FR_OK; /* The file system object is valid */
Sissors	7:da1f3328a496	2086	}
Sissors	7:da1f3328a496	2087	}
Sissors	7:da1f3328a496	2088
Sissors	7:da1f3328a496	2089	/* The file system object is not valid. */
Sissors	7:da1f3328a496	2090	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
Sissors	7:da1f3328a496	2091
Sissors	7:da1f3328a496	2092	fs->fs_type = 0; /* Clear the file system object */
Sissors	7:da1f3328a496	2093	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
Sissors	7:da1f3328a496	2094	stat = disk_initialize(fs->drv); /* Initialize the physical drive */
Sissors	7:da1f3328a496	2095	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
Sissors	7:da1f3328a496	2096	return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
Sissors	7:da1f3328a496	2097	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
Sissors	7:da1f3328a496	2098	return FR_WRITE_PROTECTED;
Sissors	7:da1f3328a496	2099	#if _MAX_SS != 512 /* Get disk sector size (variable sector size cfg only) */
Sissors	7:da1f3328a496	2100	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
Sissors	7:da1f3328a496	2101	return FR_DISK_ERR;
Sissors	7:da1f3328a496	2102	#endif
Sissors	7:da1f3328a496	2103	/* Search FAT partition on the drive. Supports only generic partitions, FDISK and SFD. */
Sissors	7:da1f3328a496	2104	fmt = check_fs(fs, bsect = 0); /* Load sector 0 and check if it is an FAT-VBR (in SFD) */
Sissors	7:da1f3328a496	2105	if (LD2PT(vol) && !fmt) fmt = 1; /* Force non-SFD if the volume is forced partition */
Sissors	7:da1f3328a496	2106	if (fmt == 1) { /* Not an FAT-VBR, the physical drive can be partitioned */
Sissors	7:da1f3328a496	2107	/* Check the partition listed in the partition table */
Sissors	7:da1f3328a496	2108	pi = LD2PT(vol);
Sissors	7:da1f3328a496	2109	if (pi) pi--;
Sissors	7:da1f3328a496	2110	tbl = &fs->win[MBR_Table + pi * SZ_PTE];/* Partition table */
Sissors	7:da1f3328a496	2111	if (tbl[4]) { /* Is the partition existing? */
Sissors	7:da1f3328a496	2112	bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
Sissors	7:da1f3328a496	2113	fmt = check_fs(fs, bsect); /* Check the partition */
Sissors	7:da1f3328a496	2114	}
Sissors	7:da1f3328a496	2115	}
Sissors	7:da1f3328a496	2116	if (fmt == 3) return FR_DISK_ERR;
Sissors	7:da1f3328a496	2117	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
Sissors	7:da1f3328a496	2118
Sissors	7:da1f3328a496	2119	/* An FAT volume is found. Following code initializes the file system object */
Sissors	7:da1f3328a496	2120
Sissors	7:da1f3328a496	2121	if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
Sissors	7:da1f3328a496	2122	return FR_NO_FILESYSTEM;
Sissors	7:da1f3328a496	2123
Sissors	7:da1f3328a496	2124	fasize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */
Sissors	7:da1f3328a496	2125	if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32);
Sissors	7:da1f3328a496	2126	fs->fsize = fasize;
Sissors	7:da1f3328a496	2127
Sissors	7:da1f3328a496	2128	fs->n_fats = b = fs->win[BPB_NumFATs]; /* Number of FAT copies */
Sissors	7:da1f3328a496	2129	if (b != 1 && b != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
Sissors	7:da1f3328a496	2130	fasize = b; / Number of sectors for FAT area */
Sissors	7:da1f3328a496	2131
Sissors	7:da1f3328a496	2132	fs->csize = b = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
Sissors	7:da1f3328a496	2133	if (!b \|\| (b & (b - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
Sissors	7:da1f3328a496	2134
Sissors	7:da1f3328a496	2135	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Number of root directory entries */
Sissors	7:da1f3328a496	2136	if (fs->n_rootdir % (SS(fs) / SZ_DIR)) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be sector aligned) */
Sissors	7:da1f3328a496	2137
Sissors	7:da1f3328a496	2138	tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */
Sissors	7:da1f3328a496	2139	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
Sissors	7:da1f3328a496	2140
Sissors	7:da1f3328a496	2141	nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt); /* Number of reserved sectors */
Sissors	7:da1f3328a496	2142	if (!nrsv) return FR_NO_FILESYSTEM; /* (BPB_RsvdSecCnt must not be 0) */
Sissors	7:da1f3328a496	2143
Sissors	7:da1f3328a496	2144	/* Determine the FAT sub type */
Sissors	7:da1f3328a496	2145	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR); /* RSV+FAT+DIR */
Sissors	7:da1f3328a496	2146	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
Sissors	7:da1f3328a496	2147	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
Sissors	7:da1f3328a496	2148	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
Sissors	7:da1f3328a496	2149	fmt = FS_FAT12;
Sissors	7:da1f3328a496	2150	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
Sissors	7:da1f3328a496	2151	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
Sissors	7:da1f3328a496	2152
Sissors	7:da1f3328a496	2153	/* Boundaries and Limits */
Sissors	7:da1f3328a496	2154	fs->n_fatent = nclst + 2; /* Number of FAT entries */
Sissors	7:da1f3328a496	2155	fs->database = bsect + sysect; /* Data start sector */
Sissors	7:da1f3328a496	2156	fs->fatbase = bsect + nrsv; /* FAT start sector */
Sissors	7:da1f3328a496	2157	if (fmt == FS_FAT32) {
Sissors	7:da1f3328a496	2158	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
Sissors	7:da1f3328a496	2159	fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
Sissors	7:da1f3328a496	2160	szbfat = fs->n_fatent * 4; /* (Required FAT size) */
Sissors	7:da1f3328a496	2161	} else {
Sissors	7:da1f3328a496	2162	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
Sissors	7:da1f3328a496	2163	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
Sissors	7:da1f3328a496	2164	szbfat = (fmt == FS_FAT16) ? /* (Required FAT size) */
Sissors	7:da1f3328a496	2165	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
Sissors	7:da1f3328a496	2166	}
Sissors	7:da1f3328a496	2167	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than required) */
Sissors	7:da1f3328a496	2168	return FR_NO_FILESYSTEM;
Sissors	7:da1f3328a496	2169
Sissors	7:da1f3328a496	2170	#if !_FS_READONLY
Sissors	7:da1f3328a496	2171	/* Initialize cluster allocation information */
Sissors	7:da1f3328a496	2172	fs->free_clust = 0xFFFFFFFF;
Sissors	7:da1f3328a496	2173	fs->last_clust = 0;
Sissors	7:da1f3328a496	2174
Sissors	7:da1f3328a496	2175	/* Get fsinfo if available */
Sissors	7:da1f3328a496	2176	if (fmt == FS_FAT32) {
Sissors	7:da1f3328a496	2177	fs->fsi_flag = 0;
Sissors	7:da1f3328a496	2178	fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
Sissors	7:da1f3328a496	2179	if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK &&
Sissors	7:da1f3328a496	2180	LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
Sissors	7:da1f3328a496	2181	LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
Sissors	7:da1f3328a496	2182	LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
Sissors	7:da1f3328a496	2183	fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
Sissors	7:da1f3328a496	2184	fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
Sissors	7:da1f3328a496	2185	}
Sissors	7:da1f3328a496	2186	}
Sissors	7:da1f3328a496	2187	#endif
Sissors	7:da1f3328a496	2188	fs->fs_type = fmt; /* FAT sub-type */
Sissors	7:da1f3328a496	2189	fs->id = ++Fsid; /* File system mount ID */
Sissors	7:da1f3328a496	2190	fs->winsect = 0; /* Invalidate sector cache */
Sissors	7:da1f3328a496	2191	fs->wflag = 0;
Sissors	7:da1f3328a496	2192	#if _FS_RPATH
Sissors	7:da1f3328a496	2193	fs->cdir = 0; /* Current directory (root dir) */
Sissors	7:da1f3328a496	2194	#endif
Sissors	7:da1f3328a496	2195	#if _FS_LOCK /* Clear file lock semaphores */
Sissors	7:da1f3328a496	2196	clear_lock(fs);
Sissors	7:da1f3328a496	2197	#endif
Sissors	7:da1f3328a496	2198
Sissors	7:da1f3328a496	2199	return FR_OK;
Sissors	7:da1f3328a496	2200	}
Sissors	7:da1f3328a496	2201
Sissors	7:da1f3328a496	2202
Sissors	7:da1f3328a496	2203
Sissors	7:da1f3328a496	2204
Sissors	7:da1f3328a496	2205	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2206	/* Check if the file/dir object is valid or not */
Sissors	7:da1f3328a496	2207	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2208
Sissors	7:da1f3328a496	2209	static
Sissors	7:da1f3328a496	2210	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
Sissors	7:da1f3328a496	2211	void* obj /* Pointer to the object FIL/DIR to check validity */
Sissors	7:da1f3328a496	2212	)
Sissors	7:da1f3328a496	2213	{
Sissors	7:da1f3328a496	2214	FIL *fil;
Sissors	7:da1f3328a496	2215
Sissors	7:da1f3328a496	2216
Sissors	7:da1f3328a496	2217	fil = (FIL)obj; / Assuming offset of fs and id in the FIL/DIR is identical */
Sissors	7:da1f3328a496	2218	if (!fil->fs \|\| !fil->fs->fs_type \|\| fil->fs->id != fil->id)
Sissors	7:da1f3328a496	2219	return FR_INVALID_OBJECT;
Sissors	7:da1f3328a496	2220
Sissors	7:da1f3328a496	2221	ENTER_FF(fil->fs); /* Lock file system */
Sissors	7:da1f3328a496	2222
Sissors	7:da1f3328a496	2223	if (disk_status(fil->fs->drv) & STA_NOINIT)
Sissors	7:da1f3328a496	2224	return FR_NOT_READY;
Sissors	7:da1f3328a496	2225
Sissors	7:da1f3328a496	2226	return FR_OK;
Sissors	7:da1f3328a496	2227	}
Sissors	7:da1f3328a496	2228
Sissors	7:da1f3328a496	2229
Sissors	7:da1f3328a496	2230
Sissors	7:da1f3328a496	2231
Sissors	7:da1f3328a496	2232	/*--------------------------------------------------------------------------
Sissors	7:da1f3328a496	2233
Sissors	7:da1f3328a496	2234	Public Functions
Sissors	7:da1f3328a496	2235
Sissors	7:da1f3328a496	2236	--------------------------------------------------------------------------*/
Sissors	7:da1f3328a496	2237
Sissors	7:da1f3328a496	2238
Sissors	7:da1f3328a496	2239
Sissors	7:da1f3328a496	2240	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2241	/* Mount/Unmount a Logical Drive */
Sissors	7:da1f3328a496	2242	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2243
Sissors	7:da1f3328a496	2244	FRESULT f_mount (
Sissors	7:da1f3328a496	2245	BYTE vol, /* Logical drive number to be mounted/unmounted */
Sissors	7:da1f3328a496	2246	FATFS fs / Pointer to new file system object (NULL for unmount)*/
Sissors	7:da1f3328a496	2247	)
Sissors	7:da1f3328a496	2248	{
Sissors	7:da1f3328a496	2249	FATFS *rfs;
Sissors	7:da1f3328a496	2250
Sissors	7:da1f3328a496	2251
Sissors	7:da1f3328a496	2252	if (vol >= _VOLUMES) /* Check if the drive number is valid */
Sissors	7:da1f3328a496	2253	return FR_INVALID_DRIVE;
Sissors	7:da1f3328a496	2254	rfs = FatFs[vol]; /* Get current fs object */
Sissors	7:da1f3328a496	2255
Sissors	7:da1f3328a496	2256	if (rfs) {
Sissors	7:da1f3328a496	2257	#if _FS_LOCK
Sissors	7:da1f3328a496	2258	clear_lock(rfs);
Sissors	7:da1f3328a496	2259	#endif
Sissors	7:da1f3328a496	2260	#if _FS_REENTRANT /* Discard sync object of the current volume */
Sissors	7:da1f3328a496	2261	if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
Sissors	7:da1f3328a496	2262	#endif
Sissors	7:da1f3328a496	2263	rfs->fs_type = 0; /* Clear old fs object */
Sissors	7:da1f3328a496	2264	}
Sissors	7:da1f3328a496	2265
Sissors	7:da1f3328a496	2266	if (fs) {
Sissors	7:da1f3328a496	2267	fs->fs_type = 0; /* Clear new fs object */
Sissors	7:da1f3328a496	2268	#if _FS_REENTRANT /* Create sync object for the new volume */
Sissors	7:da1f3328a496	2269	if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
Sissors	7:da1f3328a496	2270	#endif
Sissors	7:da1f3328a496	2271	}
Sissors	7:da1f3328a496	2272	FatFs[vol] = fs; /* Register new fs object */
Sissors	7:da1f3328a496	2273
Sissors	7:da1f3328a496	2274	return FR_OK;
Sissors	7:da1f3328a496	2275	}
Sissors	7:da1f3328a496	2276
Sissors	7:da1f3328a496	2277
Sissors	7:da1f3328a496	2278
Sissors	7:da1f3328a496	2279
Sissors	7:da1f3328a496	2280	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2281	/* Open or Create a File */
Sissors	7:da1f3328a496	2282	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2283
Sissors	7:da1f3328a496	2284	FRESULT f_open (
Sissors	7:da1f3328a496	2285	FIL fp, / Pointer to the blank file object */
Sissors	7:da1f3328a496	2286	const TCHAR path, / Pointer to the file name */
Sissors	7:da1f3328a496	2287	BYTE mode /* Access mode and file open mode flags */
Sissors	7:da1f3328a496	2288	)
Sissors	7:da1f3328a496	2289	{
Sissors	7:da1f3328a496	2290	FRESULT res;
Sissors	7:da1f3328a496	2291	FATFS_DIR dj;
Sissors	7:da1f3328a496	2292	BYTE *dir;
Sissors	7:da1f3328a496	2293	DEF_NAMEBUF;
Sissors	7:da1f3328a496	2294
Sissors	7:da1f3328a496	2295
Sissors	7:da1f3328a496	2296	if (!fp) return FR_INVALID_OBJECT;
Sissors	7:da1f3328a496	2297	fp->fs = 0; /* Clear file object */
Sissors	7:da1f3328a496	2298
Sissors	7:da1f3328a496	2299	#if !_FS_READONLY
Sissors	7:da1f3328a496	2300	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
Sissors	7:da1f3328a496	2301	res = chk_mounted(&path, &dj.fs, (BYTE)(mode & ~FA_READ));
Sissors	7:da1f3328a496	2302	#else
Sissors	7:da1f3328a496	2303	mode &= FA_READ;
Sissors	7:da1f3328a496	2304	res = chk_mounted(&path, &dj.fs, 0);
Sissors	7:da1f3328a496	2305	#endif
Sissors	7:da1f3328a496	2306	if (res == FR_OK) {
Sissors	7:da1f3328a496	2307	INIT_BUF(dj);
Sissors	7:da1f3328a496	2308	res = follow_path(&dj, path); /* Follow the file path */
Sissors	7:da1f3328a496	2309	dir = dj.dir;
Sissors	7:da1f3328a496	2310	#if !_FS_READONLY /* R/W configuration */
Sissors	7:da1f3328a496	2311	if (res == FR_OK) {
Sissors	7:da1f3328a496	2312	if (!dir) /* Current dir itself */
Sissors	7:da1f3328a496	2313	res = FR_INVALID_NAME;
Sissors	7:da1f3328a496	2314	#if _FS_LOCK
Sissors	7:da1f3328a496	2315	else
Sissors	7:da1f3328a496	2316	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
Sissors	7:da1f3328a496	2317	#endif
Sissors	7:da1f3328a496	2318	}
Sissors	7:da1f3328a496	2319	/* Create or Open a file */
Sissors	7:da1f3328a496	2320	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
Sissors	7:da1f3328a496	2321	DWORD dw, cl;
Sissors	7:da1f3328a496	2322
Sissors	7:da1f3328a496	2323	if (res != FR_OK) { /* No file, create new */
Sissors	7:da1f3328a496	2324	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
Sissors	7:da1f3328a496	2325	#if _FS_LOCK
Sissors	7:da1f3328a496	2326	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
Sissors	7:da1f3328a496	2327	#else
Sissors	7:da1f3328a496	2328	res = dir_register(&dj);
Sissors	7:da1f3328a496	2329	#endif
Sissors	7:da1f3328a496	2330	mode \|= FA_CREATE_ALWAYS; /* File is created */
Sissors	7:da1f3328a496	2331	dir = dj.dir; /* New entry */
Sissors	7:da1f3328a496	2332	}
Sissors	7:da1f3328a496	2333	else { /* Any object is already existing */
Sissors	7:da1f3328a496	2334	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */
Sissors	7:da1f3328a496	2335	res = FR_DENIED;
Sissors	7:da1f3328a496	2336	} else {
Sissors	7:da1f3328a496	2337	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
Sissors	7:da1f3328a496	2338	res = FR_EXIST;
Sissors	7:da1f3328a496	2339	}
Sissors	7:da1f3328a496	2340	}
Sissors	7:da1f3328a496	2341	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
Sissors	7:da1f3328a496	2342	dw = get_fattime(); /* Created time */
Sissors	7:da1f3328a496	2343	ST_DWORD(dir+DIR_CrtTime, dw);
Sissors	7:da1f3328a496	2344	dir[DIR_Attr] = 0; /* Reset attribute */
Sissors	7:da1f3328a496	2345	ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
Sissors	7:da1f3328a496	2346	cl = ld_clust(dj.fs, dir); /* Get start cluster */
Sissors	7:da1f3328a496	2347	st_clust(dir, 0); /* cluster = 0 */
Sissors	7:da1f3328a496	2348	dj.fs->wflag = 1;
Sissors	7:da1f3328a496	2349	if (cl) { /* Remove the cluster chain if exist */
Sissors	7:da1f3328a496	2350	dw = dj.fs->winsect;
Sissors	7:da1f3328a496	2351	res = remove_chain(dj.fs, cl);
Sissors	7:da1f3328a496	2352	if (res == FR_OK) {
Sissors	7:da1f3328a496	2353	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
Sissors	7:da1f3328a496	2354	res = move_window(dj.fs, dw);
Sissors	7:da1f3328a496	2355	}
Sissors	7:da1f3328a496	2356	}
Sissors	7:da1f3328a496	2357	}
Sissors	7:da1f3328a496	2358	}
Sissors	7:da1f3328a496	2359	else { /* Open an existing file */
Sissors	7:da1f3328a496	2360	if (res == FR_OK) { /* Follow succeeded */
Sissors	7:da1f3328a496	2361	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
Sissors	7:da1f3328a496	2362	res = FR_NO_FILE;
Sissors	7:da1f3328a496	2363	} else {
Sissors	7:da1f3328a496	2364	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
Sissors	7:da1f3328a496	2365	res = FR_DENIED;
Sissors	7:da1f3328a496	2366	}
Sissors	7:da1f3328a496	2367	}
Sissors	7:da1f3328a496	2368	}
Sissors	7:da1f3328a496	2369	if (res == FR_OK) {
Sissors	7:da1f3328a496	2370	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
Sissors	7:da1f3328a496	2371	mode \|= FA__WRITTEN;
Sissors	7:da1f3328a496	2372	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
Sissors	7:da1f3328a496	2373	fp->dir_ptr = dir;
Sissors	7:da1f3328a496	2374	#if _FS_LOCK
Sissors	7:da1f3328a496	2375	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
Sissors	7:da1f3328a496	2376	if (!fp->lockid) res = FR_INT_ERR;
Sissors	7:da1f3328a496	2377	#endif
Sissors	7:da1f3328a496	2378	}
Sissors	7:da1f3328a496	2379
Sissors	7:da1f3328a496	2380	#else /* R/O configuration */
Sissors	7:da1f3328a496	2381	if (res == FR_OK) { /* Follow succeeded */
Sissors	7:da1f3328a496	2382	dir = dj.dir;
Sissors	7:da1f3328a496	2383	if (!dir) { /* Current dir itself */
Sissors	7:da1f3328a496	2384	res = FR_INVALID_NAME;
Sissors	7:da1f3328a496	2385	} else {
Sissors	7:da1f3328a496	2386	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
Sissors	7:da1f3328a496	2387	res = FR_NO_FILE;
Sissors	7:da1f3328a496	2388	}
Sissors	7:da1f3328a496	2389	}
Sissors	7:da1f3328a496	2390	#endif
Sissors	7:da1f3328a496	2391	FREE_BUF();
Sissors	7:da1f3328a496	2392
Sissors	7:da1f3328a496	2393	if (res == FR_OK) {
Sissors	7:da1f3328a496	2394	fp->flag = mode; /* File access mode */
Sissors	7:da1f3328a496	2395	fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
Sissors	7:da1f3328a496	2396	fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
Sissors	7:da1f3328a496	2397	fp->fptr = 0; /* File pointer */
Sissors	7:da1f3328a496	2398	fp->dsect = 0;
Sissors	7:da1f3328a496	2399	#if _USE_FASTSEEK
Sissors	7:da1f3328a496	2400	fp->cltbl = 0; /* Normal seek mode */
Sissors	7:da1f3328a496	2401	#endif
Sissors	7:da1f3328a496	2402	fp->fs = dj.fs; fp->id = dj.fs->id; /* Validate file object */
Sissors	7:da1f3328a496	2403	}
Sissors	7:da1f3328a496	2404	}
Sissors	7:da1f3328a496	2405
Sissors	7:da1f3328a496	2406	LEAVE_FF(dj.fs, res);
Sissors	7:da1f3328a496	2407	}
Sissors	7:da1f3328a496	2408
Sissors	7:da1f3328a496	2409
Sissors	7:da1f3328a496	2410
Sissors	7:da1f3328a496	2411
Sissors	7:da1f3328a496	2412	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2413	/* Read File */
Sissors	7:da1f3328a496	2414	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2415
Sissors	7:da1f3328a496	2416	FRESULT f_read (
Sissors	7:da1f3328a496	2417	FIL fp, / Pointer to the file object */
Sissors	7:da1f3328a496	2418	void buff, / Pointer to data buffer */
Sissors	7:da1f3328a496	2419	UINT btr, /* Number of bytes to read */
Sissors	7:da1f3328a496	2420	UINT br / Pointer to number of bytes read */
Sissors	7:da1f3328a496	2421	)
Sissors	7:da1f3328a496	2422	{
Sissors	7:da1f3328a496	2423	FRESULT res;
Sissors	7:da1f3328a496	2424	DWORD clst, sect, remain;
Sissors	7:da1f3328a496	2425	UINT rcnt, cc;
Sissors	7:da1f3328a496	2426	BYTE csect, rbuff = (BYTE )buff;
Sissors	7:da1f3328a496	2427
Sissors	7:da1f3328a496	2428
Sissors	7:da1f3328a496	2429	br = 0; / Clear read byte counter */
Sissors	7:da1f3328a496	2430
Sissors	7:da1f3328a496	2431	res = validate(fp); /* Check validity */
Sissors	7:da1f3328a496	2432	if (res != FR_OK) LEAVE_FF(fp->fs, res);
Sissors	7:da1f3328a496	2433	if (fp->flag & FA__ERROR) /* Aborted file? */
Sissors	7:da1f3328a496	2434	LEAVE_FF(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	2435	if (!(fp->flag & FA_READ)) /* Check access mode */
Sissors	7:da1f3328a496	2436	LEAVE_FF(fp->fs, FR_DENIED);
Sissors	7:da1f3328a496	2437	remain = fp->fsize - fp->fptr;
Sissors	7:da1f3328a496	2438	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
Sissors	7:da1f3328a496	2439
Sissors	7:da1f3328a496	2440	for ( ; btr; /* Repeat until all data read */
Sissors	7:da1f3328a496	2441	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
Sissors	7:da1f3328a496	2442	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
Sissors	7:da1f3328a496	2443	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
Sissors	7:da1f3328a496	2444	if (!csect) { /* On the cluster boundary? */
Sissors	7:da1f3328a496	2445	if (fp->fptr == 0) { /* On the top of the file? */
Sissors	7:da1f3328a496	2446	clst = fp->sclust; /* Follow from the origin */
Sissors	7:da1f3328a496	2447	} else { /* Middle or end of the file */
Sissors	7:da1f3328a496	2448	#if _USE_FASTSEEK
Sissors	7:da1f3328a496	2449	if (fp->cltbl)
Sissors	7:da1f3328a496	2450	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
Sissors	7:da1f3328a496	2451	else
Sissors	7:da1f3328a496	2452	#endif
Sissors	7:da1f3328a496	2453	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
Sissors	7:da1f3328a496	2454	}
Sissors	7:da1f3328a496	2455	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	2456	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2457	fp->clust = clst; /* Update current cluster */
Sissors	7:da1f3328a496	2458	}
Sissors	7:da1f3328a496	2459	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
Sissors	7:da1f3328a496	2460	if (!sect) ABORT(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	2461	sect += csect;
Sissors	7:da1f3328a496	2462	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
Sissors	7:da1f3328a496	2463	if (cc) { /* Read maximum contiguous sectors directly */
Sissors	7:da1f3328a496	2464	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
Sissors	7:da1f3328a496	2465	cc = fp->fs->csize - csect;
Sissors	7:da1f3328a496	2466	if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK)
Sissors	7:da1f3328a496	2467	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2468	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
Sissors	7:da1f3328a496	2469	#if _FS_TINY
Sissors	7:da1f3328a496	2470	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
Sissors	7:da1f3328a496	2471	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
Sissors	7:da1f3328a496	2472	#else
Sissors	7:da1f3328a496	2473	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
Sissors	7:da1f3328a496	2474	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
Sissors	7:da1f3328a496	2475	#endif
Sissors	7:da1f3328a496	2476	#endif
Sissors	7:da1f3328a496	2477	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
Sissors	7:da1f3328a496	2478	continue;
Sissors	7:da1f3328a496	2479	}
Sissors	7:da1f3328a496	2480	#if !_FS_TINY
Sissors	7:da1f3328a496	2481	if (fp->dsect != sect) { /* Load data sector if not in cache */
Sissors	7:da1f3328a496	2482	#if !_FS_READONLY
Sissors	7:da1f3328a496	2483	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
Sissors	7:da1f3328a496	2484	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
Sissors	7:da1f3328a496	2485	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2486	fp->flag &= ~FA__DIRTY;
Sissors	7:da1f3328a496	2487	}
Sissors	7:da1f3328a496	2488	#endif
Sissors	7:da1f3328a496	2489	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
Sissors	7:da1f3328a496	2490	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2491	}
Sissors	7:da1f3328a496	2492	#endif
Sissors	7:da1f3328a496	2493	fp->dsect = sect;
Sissors	7:da1f3328a496	2494	}
Sissors	7:da1f3328a496	2495	rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
Sissors	7:da1f3328a496	2496	if (rcnt > btr) rcnt = btr;
Sissors	7:da1f3328a496	2497	#if _FS_TINY
Sissors	7:da1f3328a496	2498	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
Sissors	7:da1f3328a496	2499	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2500	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
Sissors	7:da1f3328a496	2501	#else
Sissors	7:da1f3328a496	2502	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
Sissors	7:da1f3328a496	2503	#endif
Sissors	7:da1f3328a496	2504	}
Sissors	7:da1f3328a496	2505
Sissors	7:da1f3328a496	2506	LEAVE_FF(fp->fs, FR_OK);
Sissors	7:da1f3328a496	2507	}
Sissors	7:da1f3328a496	2508
Sissors	7:da1f3328a496	2509
Sissors	7:da1f3328a496	2510
Sissors	7:da1f3328a496	2511
Sissors	7:da1f3328a496	2512	#if !_FS_READONLY
Sissors	7:da1f3328a496	2513	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2514	/* Write File */
Sissors	7:da1f3328a496	2515	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2516
Sissors	7:da1f3328a496	2517	FRESULT f_write (
Sissors	7:da1f3328a496	2518	FIL fp, / Pointer to the file object */
Sissors	7:da1f3328a496	2519	const void buff, / Pointer to the data to be written */
Sissors	7:da1f3328a496	2520	UINT btw, /* Number of bytes to write */
Sissors	7:da1f3328a496	2521	UINT bw / Pointer to number of bytes written */
Sissors	7:da1f3328a496	2522	)
Sissors	7:da1f3328a496	2523	{
Sissors	7:da1f3328a496	2524	FRESULT res;
Sissors	7:da1f3328a496	2525	DWORD clst, sect;
Sissors	7:da1f3328a496	2526	UINT wcnt, cc;
Sissors	7:da1f3328a496	2527	const BYTE wbuff = (const BYTE )buff;
Sissors	7:da1f3328a496	2528	BYTE csect;
Sissors	7:da1f3328a496	2529	bool need_sync = false;
Sissors	7:da1f3328a496	2530
Sissors	7:da1f3328a496	2531	bw = 0; / Clear write byte counter */
Sissors	7:da1f3328a496	2532
Sissors	7:da1f3328a496	2533	res = validate(fp); /* Check validity */
Sissors	7:da1f3328a496	2534	if (res != FR_OK) LEAVE_FF(fp->fs, res);
Sissors	7:da1f3328a496	2535	if (fp->flag & FA__ERROR) /* Aborted file? */
Sissors	7:da1f3328a496	2536	LEAVE_FF(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	2537	if (!(fp->flag & FA_WRITE)) /* Check access mode */
Sissors	7:da1f3328a496	2538	LEAVE_FF(fp->fs, FR_DENIED);
Sissors	7:da1f3328a496	2539	if ((DWORD)(fp->fsize + btw) < fp->fsize) btw = 0; /* File size cannot reach 4GB */
Sissors	7:da1f3328a496	2540
Sissors	7:da1f3328a496	2541	for ( ; btw; /* Repeat until all data written */
Sissors	7:da1f3328a496	2542	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
Sissors	7:da1f3328a496	2543	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
Sissors	7:da1f3328a496	2544	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
Sissors	7:da1f3328a496	2545	if (!csect) { /* On the cluster boundary? */
Sissors	7:da1f3328a496	2546	if (fp->fptr == 0) { /* On the top of the file? */
Sissors	7:da1f3328a496	2547	clst = fp->sclust; /* Follow from the origin */
Sissors	7:da1f3328a496	2548	if (clst == 0) /* When no cluster is allocated, */
Sissors	7:da1f3328a496	2549	fp->sclust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
Sissors	7:da1f3328a496	2550	} else { /* Middle or end of the file */
Sissors	7:da1f3328a496	2551	#if _USE_FASTSEEK
Sissors	7:da1f3328a496	2552	if (fp->cltbl)
Sissors	7:da1f3328a496	2553	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
Sissors	7:da1f3328a496	2554	else
Sissors	7:da1f3328a496	2555	#endif
Sissors	7:da1f3328a496	2556	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
Sissors	7:da1f3328a496	2557	}
Sissors	7:da1f3328a496	2558	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
Sissors	7:da1f3328a496	2559	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	2560	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2561	fp->clust = clst; /* Update current cluster */
Sissors	7:da1f3328a496	2562
Sissors	7:da1f3328a496	2563	#ifdef FLUSH_ON_NEW_CLUSTER
Sissors	7:da1f3328a496	2564	// We do not need to flush for the first cluster
Sissors	7:da1f3328a496	2565	if (fp->fptr != 0) {
Sissors	7:da1f3328a496	2566	need_sync = true;
Sissors	7:da1f3328a496	2567	}
Sissors	7:da1f3328a496	2568	#endif
Sissors	7:da1f3328a496	2569	}
Sissors	7:da1f3328a496	2570	#if _FS_TINY
Sissors	7:da1f3328a496	2571	if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write-back sector cache */
Sissors	7:da1f3328a496	2572	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2573	#else
Sissors	7:da1f3328a496	2574	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
Sissors	7:da1f3328a496	2575	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
Sissors	7:da1f3328a496	2576	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2577	fp->flag &= ~FA__DIRTY;
Sissors	7:da1f3328a496	2578	}
Sissors	7:da1f3328a496	2579	#endif
Sissors	7:da1f3328a496	2580	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
Sissors	7:da1f3328a496	2581	if (!sect) ABORT(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	2582	sect += csect;
Sissors	7:da1f3328a496	2583	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
Sissors	7:da1f3328a496	2584	if (cc) { /* Write maximum contiguous sectors directly */
Sissors	7:da1f3328a496	2585	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
Sissors	7:da1f3328a496	2586	cc = fp->fs->csize - csect;
Sissors	7:da1f3328a496	2587	if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK)
Sissors	7:da1f3328a496	2588	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2589	#if _FS_TINY
Sissors	7:da1f3328a496	2590	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
Sissors	7:da1f3328a496	2591	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
Sissors	7:da1f3328a496	2592	fp->fs->wflag = 0;
Sissors	7:da1f3328a496	2593	}
Sissors	7:da1f3328a496	2594	#else
Sissors	7:da1f3328a496	2595	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
Sissors	7:da1f3328a496	2596	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
Sissors	7:da1f3328a496	2597	fp->flag &= ~FA__DIRTY;
Sissors	7:da1f3328a496	2598	}
Sissors	7:da1f3328a496	2599	#endif
Sissors	7:da1f3328a496	2600	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
Sissors	7:da1f3328a496	2601	#ifdef FLUSH_ON_NEW_SECTOR
Sissors	7:da1f3328a496	2602	need_sync = true;
Sissors	7:da1f3328a496	2603	#endif
Sissors	7:da1f3328a496	2604	continue;
Sissors	7:da1f3328a496	2605	}
Sissors	7:da1f3328a496	2606	#if _FS_TINY
Sissors	7:da1f3328a496	2607	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
Sissors	7:da1f3328a496	2608	if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2609	fp->fs->winsect = sect;
Sissors	7:da1f3328a496	2610	}
Sissors	7:da1f3328a496	2611	#else
Sissors	7:da1f3328a496	2612	if (fp->dsect != sect) { /* Fill sector cache with file data */
Sissors	7:da1f3328a496	2613	if (fp->fptr < fp->fsize &&
Sissors	7:da1f3328a496	2614	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
Sissors	7:da1f3328a496	2615	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2616	}
Sissors	7:da1f3328a496	2617	#endif
Sissors	7:da1f3328a496	2618	fp->dsect = sect;
Sissors	7:da1f3328a496	2619	}
Sissors	7:da1f3328a496	2620	wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
Sissors	7:da1f3328a496	2621	if (wcnt > btw) wcnt = btw;
Sissors	7:da1f3328a496	2622	#if _FS_TINY
Sissors	7:da1f3328a496	2623	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
Sissors	7:da1f3328a496	2624	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2625	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
Sissors	7:da1f3328a496	2626	fp->fs->wflag = 1;
Sissors	7:da1f3328a496	2627	#else
Sissors	7:da1f3328a496	2628	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
Sissors	7:da1f3328a496	2629	fp->flag \|= FA__DIRTY;
Sissors	7:da1f3328a496	2630	#endif
Sissors	7:da1f3328a496	2631	}
Sissors	7:da1f3328a496	2632
Sissors	7:da1f3328a496	2633	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
Sissors	7:da1f3328a496	2634	fp->flag \|= FA__WRITTEN; /* Set file change flag */
Sissors	7:da1f3328a496	2635
Sissors	7:da1f3328a496	2636	if (need_sync) {
Sissors	7:da1f3328a496	2637	f_sync (fp);
Sissors	7:da1f3328a496	2638	}
Sissors	7:da1f3328a496	2639
Sissors	7:da1f3328a496	2640	LEAVE_FF(fp->fs, FR_OK);
Sissors	7:da1f3328a496	2641	}
Sissors	7:da1f3328a496	2642
Sissors	7:da1f3328a496	2643
Sissors	7:da1f3328a496	2644
Sissors	7:da1f3328a496	2645
Sissors	7:da1f3328a496	2646	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2647	/* Synchronize the File Object */
Sissors	7:da1f3328a496	2648	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2649
Sissors	7:da1f3328a496	2650	FRESULT f_sync (
Sissors	7:da1f3328a496	2651	FIL fp / Pointer to the file object */
Sissors	7:da1f3328a496	2652	)
Sissors	7:da1f3328a496	2653	{
Sissors	7:da1f3328a496	2654	FRESULT res;
Sissors	7:da1f3328a496	2655	DWORD tim;
Sissors	7:da1f3328a496	2656	BYTE *dir;
Sissors	7:da1f3328a496	2657
Sissors	7:da1f3328a496	2658
Sissors	7:da1f3328a496	2659	res = validate(fp); /* Check validity of the object */
Sissors	7:da1f3328a496	2660	if (res == FR_OK) {
Sissors	7:da1f3328a496	2661	if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
Sissors	7:da1f3328a496	2662	#if !_FS_TINY /* Write-back dirty buffer */
Sissors	7:da1f3328a496	2663	if (fp->flag & FA__DIRTY) {
Sissors	7:da1f3328a496	2664	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
Sissors	7:da1f3328a496	2665	LEAVE_FF(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2666	fp->flag &= ~FA__DIRTY;
Sissors	7:da1f3328a496	2667	}
Sissors	7:da1f3328a496	2668	#endif
Sissors	7:da1f3328a496	2669	/* Update the directory entry */
Sissors	7:da1f3328a496	2670	res = move_window(fp->fs, fp->dir_sect);
Sissors	7:da1f3328a496	2671	if (res == FR_OK) {
Sissors	7:da1f3328a496	2672	dir = fp->dir_ptr;
Sissors	7:da1f3328a496	2673	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
Sissors	7:da1f3328a496	2674	ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
Sissors	7:da1f3328a496	2675	st_clust(dir, fp->sclust); /* Update start cluster */
Sissors	7:da1f3328a496	2676	tim = get_fattime(); /* Update updated time */
Sissors	7:da1f3328a496	2677	ST_DWORD(dir+DIR_WrtTime, tim);
Sissors	7:da1f3328a496	2678	ST_WORD(dir+DIR_LstAccDate, 0);
Sissors	7:da1f3328a496	2679	fp->flag &= ~FA__WRITTEN;
Sissors	7:da1f3328a496	2680	fp->fs->wflag = 1;
Sissors	7:da1f3328a496	2681	res = sync(fp->fs);
Sissors	7:da1f3328a496	2682	}
Sissors	7:da1f3328a496	2683	}
Sissors	7:da1f3328a496	2684	}
Sissors	7:da1f3328a496	2685
Sissors	7:da1f3328a496	2686	LEAVE_FF(fp->fs, res);
Sissors	7:da1f3328a496	2687	}
Sissors	7:da1f3328a496	2688
Sissors	7:da1f3328a496	2689	#endif /* !_FS_READONLY */
Sissors	7:da1f3328a496	2690
Sissors	7:da1f3328a496	2691
Sissors	7:da1f3328a496	2692
Sissors	7:da1f3328a496	2693
Sissors	7:da1f3328a496	2694	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2695	/* Close File */
Sissors	7:da1f3328a496	2696	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2697
Sissors	7:da1f3328a496	2698	FRESULT f_close (
Sissors	7:da1f3328a496	2699	FIL fp / Pointer to the file object to be closed */
Sissors	7:da1f3328a496	2700	)
Sissors	7:da1f3328a496	2701	{
Sissors	7:da1f3328a496	2702	FRESULT res;
Sissors	7:da1f3328a496	2703
Sissors	7:da1f3328a496	2704
Sissors	7:da1f3328a496	2705	#if _FS_READONLY
Sissors	7:da1f3328a496	2706	res = validate(fp);
Sissors	7:da1f3328a496	2707	{
Sissors	7:da1f3328a496	2708	#if _FS_REENTRANT
Sissors	7:da1f3328a496	2709	FATFS *fs = fp->fs;
Sissors	7:da1f3328a496	2710	#endif
Sissors	7:da1f3328a496	2711	if (res == FR_OK) fp->fs = 0; /* Discard file object */
Sissors	7:da1f3328a496	2712	LEAVE_FF(fs, res);
Sissors	7:da1f3328a496	2713	}
Sissors	7:da1f3328a496	2714	#else
Sissors	7:da1f3328a496	2715	res = f_sync(fp); /* Flush cached data */
Sissors	7:da1f3328a496	2716	#if _FS_LOCK
Sissors	7:da1f3328a496	2717	if (res == FR_OK) { /* Decrement open counter */
Sissors	7:da1f3328a496	2718	#if _FS_REENTRANT
Sissors	7:da1f3328a496	2719	FATFS *fs = fp->fs;;
Sissors	7:da1f3328a496	2720	res = validate(fp);
Sissors	7:da1f3328a496	2721	if (res == FR_OK) {
Sissors	7:da1f3328a496	2722	res = dec_lock(fp->lockid);
Sissors	7:da1f3328a496	2723	unlock_fs(fs, FR_OK);
Sissors	7:da1f3328a496	2724	}
Sissors	7:da1f3328a496	2725	#else
Sissors	7:da1f3328a496	2726	res = dec_lock(fp->lockid);
Sissors	7:da1f3328a496	2727	#endif
Sissors	7:da1f3328a496	2728	}
Sissors	7:da1f3328a496	2729	#endif
Sissors	7:da1f3328a496	2730	if (res == FR_OK) fp->fs = 0; /* Discard file object */
Sissors	7:da1f3328a496	2731	return res;
Sissors	7:da1f3328a496	2732	#endif
Sissors	7:da1f3328a496	2733	}
Sissors	7:da1f3328a496	2734
Sissors	7:da1f3328a496	2735
Sissors	7:da1f3328a496	2736
Sissors	7:da1f3328a496	2737
Sissors	7:da1f3328a496	2738	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2739	/* Current Drive/Directory Handlings */
Sissors	7:da1f3328a496	2740	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2741
Sissors	7:da1f3328a496	2742	#if _FS_RPATH >= 1
Sissors	7:da1f3328a496	2743
Sissors	7:da1f3328a496	2744	FRESULT f_chdrive (
Sissors	7:da1f3328a496	2745	BYTE drv /* Drive number */
Sissors	7:da1f3328a496	2746	)
Sissors	7:da1f3328a496	2747	{
Sissors	7:da1f3328a496	2748	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
Sissors	7:da1f3328a496	2749
Sissors	7:da1f3328a496	2750	CurrVol = drv;
Sissors	7:da1f3328a496	2751
Sissors	7:da1f3328a496	2752	return FR_OK;
Sissors	7:da1f3328a496	2753	}
Sissors	7:da1f3328a496	2754
Sissors	7:da1f3328a496	2755
Sissors	7:da1f3328a496	2756
Sissors	7:da1f3328a496	2757	FRESULT f_chdir (
Sissors	7:da1f3328a496	2758	const TCHAR path / Pointer to the directory path */
Sissors	7:da1f3328a496	2759	)
Sissors	7:da1f3328a496	2760	{
Sissors	7:da1f3328a496	2761	FRESULT res;
Sissors	7:da1f3328a496	2762	DIR dj;
Sissors	7:da1f3328a496	2763	DEF_NAMEBUF;
Sissors	7:da1f3328a496	2764
Sissors	7:da1f3328a496	2765
Sissors	7:da1f3328a496	2766	res = chk_mounted(&path, &dj.fs, 0);
Sissors	7:da1f3328a496	2767	if (res == FR_OK) {
Sissors	7:da1f3328a496	2768	INIT_BUF(dj);
Sissors	7:da1f3328a496	2769	res = follow_path(&dj, path); /* Follow the path */
Sissors	7:da1f3328a496	2770	FREE_BUF();
Sissors	7:da1f3328a496	2771	if (res == FR_OK) { /* Follow completed */
Sissors	7:da1f3328a496	2772	if (!dj.dir) {
Sissors	7:da1f3328a496	2773	dj.fs->cdir = dj.sclust; /* Start directory itself */
Sissors	7:da1f3328a496	2774	} else {
Sissors	7:da1f3328a496	2775	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
Sissors	7:da1f3328a496	2776	dj.fs->cdir = ld_clust(dj.fs, dj.dir);
Sissors	7:da1f3328a496	2777	else
Sissors	7:da1f3328a496	2778	res = FR_NO_PATH; /* Reached but a file */
Sissors	7:da1f3328a496	2779	}
Sissors	7:da1f3328a496	2780	}
Sissors	7:da1f3328a496	2781	if (res == FR_NO_FILE) res = FR_NO_PATH;
Sissors	7:da1f3328a496	2782	}
Sissors	7:da1f3328a496	2783
Sissors	7:da1f3328a496	2784	LEAVE_FF(dj.fs, res);
Sissors	7:da1f3328a496	2785	}
Sissors	7:da1f3328a496	2786
Sissors	7:da1f3328a496	2787
Sissors	7:da1f3328a496	2788	#if _FS_RPATH >= 2
Sissors	7:da1f3328a496	2789	FRESULT f_getcwd (
Sissors	7:da1f3328a496	2790	TCHAR path, / Pointer to the directory path */
Sissors	7:da1f3328a496	2791	UINT sz_path /* Size of path */
Sissors	7:da1f3328a496	2792	)
Sissors	7:da1f3328a496	2793	{
Sissors	7:da1f3328a496	2794	FRESULT res;
Sissors	7:da1f3328a496	2795	DIR dj;
Sissors	7:da1f3328a496	2796	UINT i, n;
Sissors	7:da1f3328a496	2797	DWORD ccl;
Sissors	7:da1f3328a496	2798	TCHAR *tp;
Sissors	7:da1f3328a496	2799	FILINFO fno;
Sissors	7:da1f3328a496	2800	DEF_NAMEBUF;
Sissors	7:da1f3328a496	2801
Sissors	7:da1f3328a496	2802
Sissors	7:da1f3328a496	2803	*path = 0;
Sissors	7:da1f3328a496	2804	res = chk_mounted((const TCHAR*)&path, &dj.fs, 0); / Get current volume */
Sissors	7:da1f3328a496	2805	if (res == FR_OK) {
Sissors	7:da1f3328a496	2806	INIT_BUF(dj);
Sissors	7:da1f3328a496	2807	i = sz_path; /* Bottom of buffer (dir stack base) */
Sissors	7:da1f3328a496	2808	dj.sclust = dj.fs->cdir; /* Start to follow upper dir from current dir */
Sissors	7:da1f3328a496	2809	while ((ccl = dj.sclust) != 0) { /* Repeat while current dir is a sub-dir */
Sissors	7:da1f3328a496	2810	res = dir_sdi(&dj, 1); /* Get parent dir */
Sissors	7:da1f3328a496	2811	if (res != FR_OK) break;
Sissors	7:da1f3328a496	2812	res = dir_read(&dj);
Sissors	7:da1f3328a496	2813	if (res != FR_OK) break;
Sissors	7:da1f3328a496	2814	dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent dir */
Sissors	7:da1f3328a496	2815	res = dir_sdi(&dj, 0);
Sissors	7:da1f3328a496	2816	if (res != FR_OK) break;
Sissors	7:da1f3328a496	2817	do { /* Find the entry links to the child dir */
Sissors	7:da1f3328a496	2818	res = dir_read(&dj);
Sissors	7:da1f3328a496	2819	if (res != FR_OK) break;
Sissors	7:da1f3328a496	2820	if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
Sissors	7:da1f3328a496	2821	res = dir_next(&dj, 0);
Sissors	7:da1f3328a496	2822	} while (res == FR_OK);
Sissors	7:da1f3328a496	2823	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
Sissors	7:da1f3328a496	2824	if (res != FR_OK) break;
Sissors	7:da1f3328a496	2825	#if _USE_LFN
Sissors	7:da1f3328a496	2826	fno.lfname = path;
Sissors	7:da1f3328a496	2827	fno.lfsize = i;
Sissors	7:da1f3328a496	2828	#endif
Sissors	7:da1f3328a496	2829	get_fileinfo(&dj, &fno); /* Get the dir name and push it to the buffer */
Sissors	7:da1f3328a496	2830	tp = fno.fname;
Sissors	7:da1f3328a496	2831	if (_USE_LFN && *path) tp = path;
Sissors	7:da1f3328a496	2832	for (n = 0; tp[n]; n++) ;
Sissors	7:da1f3328a496	2833	if (i < n + 3) {
Sissors	7:da1f3328a496	2834	res = FR_NOT_ENOUGH_CORE; break;
Sissors	7:da1f3328a496	2835	}
Sissors	7:da1f3328a496	2836	while (n) path[--i] = tp[--n];
Sissors	7:da1f3328a496	2837	path[--i] = '/';
Sissors	7:da1f3328a496	2838	}
Sissors	7:da1f3328a496	2839	tp = path;
Sissors	7:da1f3328a496	2840	if (res == FR_OK) {
Sissors	7:da1f3328a496	2841	tp++ = '0' + CurrVol; / Put drive number */
Sissors	7:da1f3328a496	2842	*tp++ = ':';
Sissors	7:da1f3328a496	2843	if (i == sz_path) { /* Root-dir */
Sissors	7:da1f3328a496	2844	*tp++ = '/';
Sissors	7:da1f3328a496	2845	} else { /* Sub-dir */
Sissors	7:da1f3328a496	2846	do /* Add stacked path str */
Sissors	7:da1f3328a496	2847	*tp++ = path[i++];
Sissors	7:da1f3328a496	2848	while (i < sz_path);
Sissors	7:da1f3328a496	2849	}
Sissors	7:da1f3328a496	2850	}
Sissors	7:da1f3328a496	2851	*tp = 0;
Sissors	7:da1f3328a496	2852	FREE_BUF();
Sissors	7:da1f3328a496	2853	}
Sissors	7:da1f3328a496	2854
Sissors	7:da1f3328a496	2855	LEAVE_FF(dj.fs, res);
Sissors	7:da1f3328a496	2856	}
Sissors	7:da1f3328a496	2857	#endif /* _FS_RPATH >= 2 */
Sissors	7:da1f3328a496	2858	#endif /* _FS_RPATH >= 1 */
Sissors	7:da1f3328a496	2859
Sissors	7:da1f3328a496	2860
Sissors	7:da1f3328a496	2861
Sissors	7:da1f3328a496	2862	#if _FS_MINIMIZE <= 2
Sissors	7:da1f3328a496	2863	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2864	/* Seek File R/W Pointer */
Sissors	7:da1f3328a496	2865	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	2866
Sissors	7:da1f3328a496	2867	FRESULT f_lseek (
Sissors	7:da1f3328a496	2868	FIL fp, / Pointer to the file object */
Sissors	7:da1f3328a496	2869	DWORD ofs /* File pointer from top of file */
Sissors	7:da1f3328a496	2870	)
Sissors	7:da1f3328a496	2871	{
Sissors	7:da1f3328a496	2872	FRESULT res;
Sissors	7:da1f3328a496	2873
Sissors	7:da1f3328a496	2874
Sissors	7:da1f3328a496	2875	res = validate(fp); /* Check validity of the object */
Sissors	7:da1f3328a496	2876	if (res != FR_OK) LEAVE_FF(fp->fs, res);
Sissors	7:da1f3328a496	2877	if (fp->flag & FA__ERROR) /* Check abort flag */
Sissors	7:da1f3328a496	2878	LEAVE_FF(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	2879
Sissors	7:da1f3328a496	2880	#if _USE_FASTSEEK
Sissors	7:da1f3328a496	2881	if (fp->cltbl) { /* Fast seek */
Sissors	7:da1f3328a496	2882	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
Sissors	7:da1f3328a496	2883
Sissors	7:da1f3328a496	2884	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
Sissors	7:da1f3328a496	2885	tbl = fp->cltbl;
Sissors	7:da1f3328a496	2886	tlen = tbl++; ulen = 2; / Given table size and required table size */
Sissors	7:da1f3328a496	2887	cl = fp->sclust; /* Top of the chain */
Sissors	7:da1f3328a496	2888	if (cl) {
Sissors	7:da1f3328a496	2889	do {
Sissors	7:da1f3328a496	2890	/* Get a fragment */
Sissors	7:da1f3328a496	2891	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
Sissors	7:da1f3328a496	2892	do {
Sissors	7:da1f3328a496	2893	pcl = cl; ncl++;
Sissors	7:da1f3328a496	2894	cl = get_fat(fp->fs, cl);
Sissors	7:da1f3328a496	2895	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	2896	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2897	} while (cl == pcl + 1);
Sissors	7:da1f3328a496	2898	if (ulen <= tlen) { /* Store the length and top of the fragment */
Sissors	7:da1f3328a496	2899	tbl++ = ncl; tbl++ = tcl;
Sissors	7:da1f3328a496	2900	}
Sissors	7:da1f3328a496	2901	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
Sissors	7:da1f3328a496	2902	}
Sissors	7:da1f3328a496	2903	fp->cltbl = ulen; / Number of items used */
Sissors	7:da1f3328a496	2904	if (ulen <= tlen)
Sissors	7:da1f3328a496	2905	tbl = 0; / Terminate table */
Sissors	7:da1f3328a496	2906	else
Sissors	7:da1f3328a496	2907	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
Sissors	7:da1f3328a496	2908
Sissors	7:da1f3328a496	2909	} else { /* Fast seek */
Sissors	7:da1f3328a496	2910	if (ofs > fp->fsize) /* Clip offset at the file size */
Sissors	7:da1f3328a496	2911	ofs = fp->fsize;
Sissors	7:da1f3328a496	2912	fp->fptr = ofs; /* Set file pointer */
Sissors	7:da1f3328a496	2913	if (ofs) {
Sissors	7:da1f3328a496	2914	fp->clust = clmt_clust(fp, ofs - 1);
Sissors	7:da1f3328a496	2915	dsc = clust2sect(fp->fs, fp->clust);
Sissors	7:da1f3328a496	2916	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	2917	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
Sissors	7:da1f3328a496	2918	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
Sissors	7:da1f3328a496	2919	#if !_FS_TINY
Sissors	7:da1f3328a496	2920	#if !_FS_READONLY
Sissors	7:da1f3328a496	2921	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
Sissors	7:da1f3328a496	2922	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
Sissors	7:da1f3328a496	2923	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2924	fp->flag &= ~FA__DIRTY;
Sissors	7:da1f3328a496	2925	}
Sissors	7:da1f3328a496	2926	#endif
Sissors	7:da1f3328a496	2927	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
Sissors	7:da1f3328a496	2928	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2929	#endif
Sissors	7:da1f3328a496	2930	fp->dsect = dsc;
Sissors	7:da1f3328a496	2931	}
Sissors	7:da1f3328a496	2932	}
Sissors	7:da1f3328a496	2933	}
Sissors	7:da1f3328a496	2934	} else
Sissors	7:da1f3328a496	2935	#endif
Sissors	7:da1f3328a496	2936
Sissors	7:da1f3328a496	2937	/* Normal Seek */
Sissors	7:da1f3328a496	2938	{
Sissors	7:da1f3328a496	2939	DWORD clst, bcs, nsect, ifptr;
Sissors	7:da1f3328a496	2940
Sissors	7:da1f3328a496	2941	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
Sissors	7:da1f3328a496	2942	#if !_FS_READONLY
Sissors	7:da1f3328a496	2943	&& !(fp->flag & FA_WRITE)
Sissors	7:da1f3328a496	2944	#endif
Sissors	7:da1f3328a496	2945	) ofs = fp->fsize;
Sissors	7:da1f3328a496	2946
Sissors	7:da1f3328a496	2947	ifptr = fp->fptr;
Sissors	7:da1f3328a496	2948	fp->fptr = nsect = 0;
Sissors	7:da1f3328a496	2949	if (ofs) {
Sissors	7:da1f3328a496	2950	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
Sissors	7:da1f3328a496	2951	if (ifptr > 0 &&
Sissors	7:da1f3328a496	2952	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
Sissors	7:da1f3328a496	2953	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
Sissors	7:da1f3328a496	2954	ofs -= fp->fptr;
Sissors	7:da1f3328a496	2955	clst = fp->clust;
Sissors	7:da1f3328a496	2956	} else { /* When seek to back cluster, */
Sissors	7:da1f3328a496	2957	clst = fp->sclust; /* start from the first cluster */
Sissors	7:da1f3328a496	2958	#if !_FS_READONLY
Sissors	7:da1f3328a496	2959	if (clst == 0) { /* If no cluster chain, create a new chain */
Sissors	7:da1f3328a496	2960	clst = create_chain(fp->fs, 0);
Sissors	7:da1f3328a496	2961	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	2962	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2963	fp->sclust = clst;
Sissors	7:da1f3328a496	2964	}
Sissors	7:da1f3328a496	2965	#endif
Sissors	7:da1f3328a496	2966	fp->clust = clst;
Sissors	7:da1f3328a496	2967	}
Sissors	7:da1f3328a496	2968	if (clst != 0) {
Sissors	7:da1f3328a496	2969	while (ofs > bcs) { /* Cluster following loop */
Sissors	7:da1f3328a496	2970	#if !_FS_READONLY
Sissors	7:da1f3328a496	2971	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
Sissors	7:da1f3328a496	2972	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
Sissors	7:da1f3328a496	2973	if (clst == 0) { /* When disk gets full, clip file size */
Sissors	7:da1f3328a496	2974	ofs = bcs; break;
Sissors	7:da1f3328a496	2975	}
Sissors	7:da1f3328a496	2976	} else
Sissors	7:da1f3328a496	2977	#endif
Sissors	7:da1f3328a496	2978	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
Sissors	7:da1f3328a496	2979	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2980	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	2981	fp->clust = clst;
Sissors	7:da1f3328a496	2982	fp->fptr += bcs;
Sissors	7:da1f3328a496	2983	ofs -= bcs;
Sissors	7:da1f3328a496	2984	}
Sissors	7:da1f3328a496	2985	fp->fptr += ofs;
Sissors	7:da1f3328a496	2986	if (ofs % SS(fp->fs)) {
Sissors	7:da1f3328a496	2987	nsect = clust2sect(fp->fs, clst); /* Current sector */
Sissors	7:da1f3328a496	2988	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	2989	nsect += ofs / SS(fp->fs);
Sissors	7:da1f3328a496	2990	}
Sissors	7:da1f3328a496	2991	}
Sissors	7:da1f3328a496	2992	}
Sissors	7:da1f3328a496	2993	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
Sissors	7:da1f3328a496	2994	#if !_FS_TINY
Sissors	7:da1f3328a496	2995	#if !_FS_READONLY
Sissors	7:da1f3328a496	2996	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
Sissors	7:da1f3328a496	2997	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
Sissors	7:da1f3328a496	2998	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	2999	fp->flag &= ~FA__DIRTY;
Sissors	7:da1f3328a496	3000	}
Sissors	7:da1f3328a496	3001	#endif
Sissors	7:da1f3328a496	3002	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
Sissors	7:da1f3328a496	3003	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	3004	#endif
Sissors	7:da1f3328a496	3005	fp->dsect = nsect;
Sissors	7:da1f3328a496	3006	}
Sissors	7:da1f3328a496	3007	#if !_FS_READONLY
Sissors	7:da1f3328a496	3008	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
Sissors	7:da1f3328a496	3009	fp->fsize = fp->fptr;
Sissors	7:da1f3328a496	3010	fp->flag \|= FA__WRITTEN;
Sissors	7:da1f3328a496	3011	}
Sissors	7:da1f3328a496	3012	#endif
Sissors	7:da1f3328a496	3013	}
Sissors	7:da1f3328a496	3014
Sissors	7:da1f3328a496	3015	LEAVE_FF(fp->fs, res);
Sissors	7:da1f3328a496	3016	}
Sissors	7:da1f3328a496	3017
Sissors	7:da1f3328a496	3018
Sissors	7:da1f3328a496	3019
Sissors	7:da1f3328a496	3020	#if _FS_MINIMIZE <= 1
Sissors	7:da1f3328a496	3021	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3022	/* Create a Directory Object */
Sissors	7:da1f3328a496	3023	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3024
Sissors	7:da1f3328a496	3025	FRESULT f_opendir (
Sissors	7:da1f3328a496	3026	FATFS_DIR dj, / Pointer to directory object to create */
Sissors	7:da1f3328a496	3027	const TCHAR path / Pointer to the directory path */
Sissors	7:da1f3328a496	3028	)
Sissors	7:da1f3328a496	3029	{
Sissors	7:da1f3328a496	3030	FRESULT res;
Sissors	7:da1f3328a496	3031	FATFS *fs;
Sissors	7:da1f3328a496	3032	DEF_NAMEBUF;
Sissors	7:da1f3328a496	3033
Sissors	7:da1f3328a496	3034
Sissors	7:da1f3328a496	3035	if (!dj) return FR_INVALID_OBJECT;
Sissors	7:da1f3328a496	3036
Sissors	7:da1f3328a496	3037	res = chk_mounted(&path, &dj->fs, 0);
Sissors	7:da1f3328a496	3038	fs = dj->fs;
Sissors	7:da1f3328a496	3039	if (res == FR_OK) {
Sissors	7:da1f3328a496	3040	INIT_BUF(*dj);
Sissors	7:da1f3328a496	3041	res = follow_path(dj, path); /* Follow the path to the directory */
Sissors	7:da1f3328a496	3042	FREE_BUF();
Sissors	7:da1f3328a496	3043	if (res == FR_OK) { /* Follow completed */
Sissors	7:da1f3328a496	3044	if (dj->dir) { /* It is not the root dir */
Sissors	7:da1f3328a496	3045	if (dj->dir[DIR_Attr] & AM_DIR) { /* The object is a directory */
Sissors	7:da1f3328a496	3046	dj->sclust = ld_clust(fs, dj->dir);
Sissors	7:da1f3328a496	3047	} else { /* The object is not a directory */
Sissors	7:da1f3328a496	3048	res = FR_NO_PATH;
Sissors	7:da1f3328a496	3049	}
Sissors	7:da1f3328a496	3050	}
Sissors	7:da1f3328a496	3051	if (res == FR_OK) {
Sissors	7:da1f3328a496	3052	dj->id = fs->id;
Sissors	7:da1f3328a496	3053	res = dir_sdi(dj, 0); /* Rewind dir */
Sissors	7:da1f3328a496	3054	}
Sissors	7:da1f3328a496	3055	}
Sissors	7:da1f3328a496	3056	if (res == FR_NO_FILE) res = FR_NO_PATH;
Sissors	7:da1f3328a496	3057	if (res != FR_OK) dj->fs = 0; /* Invalidate the dir object if function faild */
Sissors	7:da1f3328a496	3058	} else {
Sissors	7:da1f3328a496	3059	dj->fs = 0;
Sissors	7:da1f3328a496	3060	}
Sissors	7:da1f3328a496	3061
Sissors	7:da1f3328a496	3062	LEAVE_FF(fs, res);
Sissors	7:da1f3328a496	3063	}
Sissors	7:da1f3328a496	3064
Sissors	7:da1f3328a496	3065
Sissors	7:da1f3328a496	3066
Sissors	7:da1f3328a496	3067
Sissors	7:da1f3328a496	3068	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3069	/* Read Directory Entry in Sequence */
Sissors	7:da1f3328a496	3070	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3071
Sissors	7:da1f3328a496	3072	FRESULT f_readdir (
Sissors	7:da1f3328a496	3073	FATFS_DIR dj, / Pointer to the open directory object */
Sissors	7:da1f3328a496	3074	FILINFO fno / Pointer to file information to return */
Sissors	7:da1f3328a496	3075	)
Sissors	7:da1f3328a496	3076	{
Sissors	7:da1f3328a496	3077	FRESULT res;
Sissors	7:da1f3328a496	3078	DEF_NAMEBUF;
Sissors	7:da1f3328a496	3079
Sissors	7:da1f3328a496	3080
Sissors	7:da1f3328a496	3081	res = validate(dj); /* Check validity of the object */
Sissors	7:da1f3328a496	3082	if (res == FR_OK) {
Sissors	7:da1f3328a496	3083	if (!fno) {
Sissors	7:da1f3328a496	3084	res = dir_sdi(dj, 0); /* Rewind the directory object */
Sissors	7:da1f3328a496	3085	} else {
Sissors	7:da1f3328a496	3086	INIT_BUF(*dj);
Sissors	7:da1f3328a496	3087	res = dir_read(dj); /* Read an directory item */
Sissors	7:da1f3328a496	3088	if (res == FR_NO_FILE) { /* Reached end of dir */
Sissors	7:da1f3328a496	3089	dj->sect = 0;
Sissors	7:da1f3328a496	3090	res = FR_OK;
Sissors	7:da1f3328a496	3091	}
Sissors	7:da1f3328a496	3092	if (res == FR_OK) { /* A valid entry is found */
Sissors	7:da1f3328a496	3093	get_fileinfo(dj, fno); /* Get the object information */
Sissors	7:da1f3328a496	3094	res = dir_next(dj, 0); /* Increment index for next */
Sissors	7:da1f3328a496	3095	if (res == FR_NO_FILE) {
Sissors	7:da1f3328a496	3096	dj->sect = 0;
Sissors	7:da1f3328a496	3097	res = FR_OK;
Sissors	7:da1f3328a496	3098	}
Sissors	7:da1f3328a496	3099	}
Sissors	7:da1f3328a496	3100	FREE_BUF();
Sissors	7:da1f3328a496	3101	}
Sissors	7:da1f3328a496	3102	}
Sissors	7:da1f3328a496	3103
Sissors	7:da1f3328a496	3104	LEAVE_FF(dj->fs, res);
Sissors	7:da1f3328a496	3105	}
Sissors	7:da1f3328a496	3106
Sissors	7:da1f3328a496	3107
Sissors	7:da1f3328a496	3108
Sissors	7:da1f3328a496	3109	#if _FS_MINIMIZE == 0
Sissors	7:da1f3328a496	3110	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3111	/* Get File Status */
Sissors	7:da1f3328a496	3112	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3113
Sissors	7:da1f3328a496	3114	FRESULT f_stat (
Sissors	7:da1f3328a496	3115	const TCHAR path, / Pointer to the file path */
Sissors	7:da1f3328a496	3116	FILINFO fno / Pointer to file information to return */
Sissors	7:da1f3328a496	3117	)
Sissors	7:da1f3328a496	3118	{
Sissors	7:da1f3328a496	3119	FRESULT res;
Sissors	7:da1f3328a496	3120	FATFS_DIR dj;
Sissors	7:da1f3328a496	3121	DEF_NAMEBUF;
Sissors	7:da1f3328a496	3122
Sissors	7:da1f3328a496	3123
Sissors	7:da1f3328a496	3124	res = chk_mounted(&path, &dj.fs, 0);
Sissors	7:da1f3328a496	3125	if (res == FR_OK) {
Sissors	7:da1f3328a496	3126	INIT_BUF(dj);
Sissors	7:da1f3328a496	3127	res = follow_path(&dj, path); /* Follow the file path */
Sissors	7:da1f3328a496	3128	if (res == FR_OK) { /* Follow completed */
Sissors	7:da1f3328a496	3129	if (dj.dir) /* Found an object */
Sissors	7:da1f3328a496	3130	get_fileinfo(&dj, fno);
Sissors	7:da1f3328a496	3131	else /* It is root dir */
Sissors	7:da1f3328a496	3132	res = FR_INVALID_NAME;
Sissors	7:da1f3328a496	3133	}
Sissors	7:da1f3328a496	3134	FREE_BUF();
Sissors	7:da1f3328a496	3135	}
Sissors	7:da1f3328a496	3136
Sissors	7:da1f3328a496	3137	LEAVE_FF(dj.fs, res);
Sissors	7:da1f3328a496	3138	}
Sissors	7:da1f3328a496	3139
Sissors	7:da1f3328a496	3140
Sissors	7:da1f3328a496	3141
Sissors	7:da1f3328a496	3142	#if !_FS_READONLY
Sissors	7:da1f3328a496	3143	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3144	/* Get Number of Free Clusters */
Sissors	7:da1f3328a496	3145	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3146
Sissors	7:da1f3328a496	3147	FRESULT f_getfree (
Sissors	7:da1f3328a496	3148	const TCHAR path, / Pointer to the logical drive number (root dir) */
Sissors	7:da1f3328a496	3149	DWORD nclst, / Pointer to the variable to return number of free clusters */
Sissors	7:da1f3328a496	3150	FATFS *fatfs / Pointer to pointer to corresponding file system object to return */
Sissors	7:da1f3328a496	3151	)
Sissors	7:da1f3328a496	3152	{
Sissors	7:da1f3328a496	3153	FRESULT res;
Sissors	7:da1f3328a496	3154	FATFS *fs;
Sissors	7:da1f3328a496	3155	DWORD n, clst, sect, stat;
Sissors	7:da1f3328a496	3156	UINT i;
Sissors	7:da1f3328a496	3157	BYTE fat, *p;
Sissors	7:da1f3328a496	3158
Sissors	7:da1f3328a496	3159
Sissors	7:da1f3328a496	3160	/* Get drive number */
Sissors	7:da1f3328a496	3161	res = chk_mounted(&path, fatfs, 0);
Sissors	7:da1f3328a496	3162	fs = *fatfs;
Sissors	7:da1f3328a496	3163	if (res == FR_OK) {
Sissors	7:da1f3328a496	3164	/* If free_clust is valid, return it without full cluster scan */
Sissors	7:da1f3328a496	3165	if (fs->free_clust <= fs->n_fatent - 2) {
Sissors	7:da1f3328a496	3166	*nclst = fs->free_clust;
Sissors	7:da1f3328a496	3167	} else {
Sissors	7:da1f3328a496	3168	/* Get number of free clusters */
Sissors	7:da1f3328a496	3169	fat = fs->fs_type;
Sissors	7:da1f3328a496	3170	n = 0;
Sissors	7:da1f3328a496	3171	if (fat == FS_FAT12) {
Sissors	7:da1f3328a496	3172	clst = 2;
Sissors	7:da1f3328a496	3173	do {
Sissors	7:da1f3328a496	3174	stat = get_fat(fs, clst);
Sissors	7:da1f3328a496	3175	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
Sissors	7:da1f3328a496	3176	if (stat == 1) { res = FR_INT_ERR; break; }
Sissors	7:da1f3328a496	3177	if (stat == 0) n++;
Sissors	7:da1f3328a496	3178	} while (++clst < fs->n_fatent);
Sissors	7:da1f3328a496	3179	} else {
Sissors	7:da1f3328a496	3180	clst = fs->n_fatent;
Sissors	7:da1f3328a496	3181	sect = fs->fatbase;
Sissors	7:da1f3328a496	3182	i = 0; p = 0;
Sissors	7:da1f3328a496	3183	do {
Sissors	7:da1f3328a496	3184	if (!i) {
Sissors	7:da1f3328a496	3185	res = move_window(fs, sect++);
Sissors	7:da1f3328a496	3186	if (res != FR_OK) break;
Sissors	7:da1f3328a496	3187	p = fs->win;
Sissors	7:da1f3328a496	3188	i = SS(fs);
Sissors	7:da1f3328a496	3189	}
Sissors	7:da1f3328a496	3190	if (fat == FS_FAT16) {
Sissors	7:da1f3328a496	3191	if (LD_WORD(p) == 0) n++;
Sissors	7:da1f3328a496	3192	p += 2; i -= 2;
Sissors	7:da1f3328a496	3193	} else {
Sissors	7:da1f3328a496	3194	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
Sissors	7:da1f3328a496	3195	p += 4; i -= 4;
Sissors	7:da1f3328a496	3196	}
Sissors	7:da1f3328a496	3197	} while (--clst);
Sissors	7:da1f3328a496	3198	}
Sissors	7:da1f3328a496	3199	fs->free_clust = n;
Sissors	7:da1f3328a496	3200	if (fat == FS_FAT32) fs->fsi_flag = 1;
Sissors	7:da1f3328a496	3201	*nclst = n;
Sissors	7:da1f3328a496	3202	}
Sissors	7:da1f3328a496	3203	}
Sissors	7:da1f3328a496	3204	LEAVE_FF(fs, res);
Sissors	7:da1f3328a496	3205	}
Sissors	7:da1f3328a496	3206
Sissors	7:da1f3328a496	3207
Sissors	7:da1f3328a496	3208
Sissors	7:da1f3328a496	3209
Sissors	7:da1f3328a496	3210	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3211	/* Truncate File */
Sissors	7:da1f3328a496	3212	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3213
Sissors	7:da1f3328a496	3214	FRESULT f_truncate (
Sissors	7:da1f3328a496	3215	FIL fp / Pointer to the file object */
Sissors	7:da1f3328a496	3216	)
Sissors	7:da1f3328a496	3217	{
Sissors	7:da1f3328a496	3218	FRESULT res;
Sissors	7:da1f3328a496	3219	DWORD ncl;
Sissors	7:da1f3328a496	3220
Sissors	7:da1f3328a496	3221
Sissors	7:da1f3328a496	3222	if (!fp) return FR_INVALID_OBJECT;
Sissors	7:da1f3328a496	3223
Sissors	7:da1f3328a496	3224	res = validate(fp); /* Check validity of the object */
Sissors	7:da1f3328a496	3225	if (res == FR_OK) {
Sissors	7:da1f3328a496	3226	if (fp->flag & FA__ERROR) { /* Check abort flag */
Sissors	7:da1f3328a496	3227	res = FR_INT_ERR;
Sissors	7:da1f3328a496	3228	} else {
Sissors	7:da1f3328a496	3229	if (!(fp->flag & FA_WRITE)) /* Check access mode */
Sissors	7:da1f3328a496	3230	res = FR_DENIED;
Sissors	7:da1f3328a496	3231	}
Sissors	7:da1f3328a496	3232	}
Sissors	7:da1f3328a496	3233	if (res == FR_OK) {
Sissors	7:da1f3328a496	3234	if (fp->fsize > fp->fptr) {
Sissors	7:da1f3328a496	3235	fp->fsize = fp->fptr; /* Set file size to current R/W point */
Sissors	7:da1f3328a496	3236	fp->flag \|= FA__WRITTEN;
Sissors	7:da1f3328a496	3237	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
Sissors	7:da1f3328a496	3238	res = remove_chain(fp->fs, fp->sclust);
Sissors	7:da1f3328a496	3239	fp->sclust = 0;
Sissors	7:da1f3328a496	3240	} else { /* When truncate a part of the file, remove remaining clusters */
Sissors	7:da1f3328a496	3241	ncl = get_fat(fp->fs, fp->clust);
Sissors	7:da1f3328a496	3242	res = FR_OK;
Sissors	7:da1f3328a496	3243	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
Sissors	7:da1f3328a496	3244	if (ncl == 1) res = FR_INT_ERR;
Sissors	7:da1f3328a496	3245	if (res == FR_OK && ncl < fp->fs->n_fatent) {
Sissors	7:da1f3328a496	3246	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
Sissors	7:da1f3328a496	3247	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
Sissors	7:da1f3328a496	3248	}
Sissors	7:da1f3328a496	3249	}
Sissors	7:da1f3328a496	3250	}
Sissors	7:da1f3328a496	3251	if (res != FR_OK) fp->flag \|= FA__ERROR;
Sissors	7:da1f3328a496	3252	}
Sissors	7:da1f3328a496	3253
Sissors	7:da1f3328a496	3254	LEAVE_FF(fp->fs, res);
Sissors	7:da1f3328a496	3255	}
Sissors	7:da1f3328a496	3256
Sissors	7:da1f3328a496	3257
Sissors	7:da1f3328a496	3258
Sissors	7:da1f3328a496	3259
Sissors	7:da1f3328a496	3260	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3261	/* Delete a File or Directory */
Sissors	7:da1f3328a496	3262	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3263
Sissors	7:da1f3328a496	3264	FRESULT f_unlink (
Sissors	7:da1f3328a496	3265	const TCHAR path / Pointer to the file or directory path */
Sissors	7:da1f3328a496	3266	)
Sissors	7:da1f3328a496	3267	{
Sissors	7:da1f3328a496	3268	FRESULT res;
Sissors	7:da1f3328a496	3269	FATFS_DIR dj, sdj;
Sissors	7:da1f3328a496	3270	BYTE *dir;
Sissors	7:da1f3328a496	3271	DWORD dclst;
Sissors	7:da1f3328a496	3272	DEF_NAMEBUF;
Sissors	7:da1f3328a496	3273
Sissors	7:da1f3328a496	3274
Sissors	7:da1f3328a496	3275	res = chk_mounted(&path, &dj.fs, 1);
Sissors	7:da1f3328a496	3276	if (res == FR_OK) {
Sissors	7:da1f3328a496	3277	INIT_BUF(dj);
Sissors	7:da1f3328a496	3278	res = follow_path(&dj, path); /* Follow the file path */
Sissors	7:da1f3328a496	3279	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
Sissors	7:da1f3328a496	3280	res = FR_INVALID_NAME; /* Cannot remove dot entry */
Sissors	7:da1f3328a496	3281	#if _FS_LOCK
Sissors	7:da1f3328a496	3282	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open file */
Sissors	7:da1f3328a496	3283	#endif
Sissors	7:da1f3328a496	3284	if (res == FR_OK) { /* The object is accessible */
Sissors	7:da1f3328a496	3285	dir = dj.dir;
Sissors	7:da1f3328a496	3286	if (!dir) {
Sissors	7:da1f3328a496	3287	res = FR_INVALID_NAME; /* Cannot remove the start directory */
Sissors	7:da1f3328a496	3288	} else {
Sissors	7:da1f3328a496	3289	if (dir[DIR_Attr] & AM_RDO)
Sissors	7:da1f3328a496	3290	res = FR_DENIED; /* Cannot remove R/O object */
Sissors	7:da1f3328a496	3291	}
Sissors	7:da1f3328a496	3292	dclst = ld_clust(dj.fs, dir);
Sissors	7:da1f3328a496	3293	if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-dir? */
Sissors	7:da1f3328a496	3294	if (dclst < 2) {
Sissors	7:da1f3328a496	3295	res = FR_INT_ERR;
Sissors	7:da1f3328a496	3296	} else {
Sissors	7:da1f3328a496	3297	mem_cpy(&sdj, &dj, sizeof (FATFS_DIR)); /* Check if the sub-dir is empty or not */
Sissors	7:da1f3328a496	3298	sdj.sclust = dclst;
Sissors	7:da1f3328a496	3299	res = dir_sdi(&sdj, 2); /* Exclude dot entries */
Sissors	7:da1f3328a496	3300	if (res == FR_OK) {
Sissors	7:da1f3328a496	3301	res = dir_read(&sdj);
Sissors	7:da1f3328a496	3302	if (res == FR_OK /* Not empty dir */
Sissors	7:da1f3328a496	3303	#if _FS_RPATH
Sissors	7:da1f3328a496	3304	\|\| dclst == dj.fs->cdir /* Current dir */
Sissors	7:da1f3328a496	3305	#endif
Sissors	7:da1f3328a496	3306	) res = FR_DENIED;
Sissors	7:da1f3328a496	3307	if (res == FR_NO_FILE) res = FR_OK; /* Empty */
Sissors	7:da1f3328a496	3308	}
Sissors	7:da1f3328a496	3309	}
Sissors	7:da1f3328a496	3310	}
Sissors	7:da1f3328a496	3311	if (res == FR_OK) {
Sissors	7:da1f3328a496	3312	res = dir_remove(&dj); /* Remove the directory entry */
Sissors	7:da1f3328a496	3313	if (res == FR_OK) {
Sissors	7:da1f3328a496	3314	if (dclst) /* Remove the cluster chain if exist */
Sissors	7:da1f3328a496	3315	res = remove_chain(dj.fs, dclst);
Sissors	7:da1f3328a496	3316	if (res == FR_OK) res = sync(dj.fs);
Sissors	7:da1f3328a496	3317	}
Sissors	7:da1f3328a496	3318	}
Sissors	7:da1f3328a496	3319	}
Sissors	7:da1f3328a496	3320	FREE_BUF();
Sissors	7:da1f3328a496	3321	}
Sissors	7:da1f3328a496	3322	LEAVE_FF(dj.fs, res);
Sissors	7:da1f3328a496	3323	}
Sissors	7:da1f3328a496	3324
Sissors	7:da1f3328a496	3325
Sissors	7:da1f3328a496	3326
Sissors	7:da1f3328a496	3327
Sissors	7:da1f3328a496	3328	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3329	/* Create a Directory */
Sissors	7:da1f3328a496	3330	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3331
Sissors	7:da1f3328a496	3332	FRESULT f_mkdir (
Sissors	7:da1f3328a496	3333	const TCHAR path / Pointer to the directory path */
Sissors	7:da1f3328a496	3334	)
Sissors	7:da1f3328a496	3335	{
Sissors	7:da1f3328a496	3336	FRESULT res;
Sissors	7:da1f3328a496	3337	FATFS_DIR dj;
Sissors	7:da1f3328a496	3338	BYTE *dir, n;
Sissors	7:da1f3328a496	3339	DWORD dsc, dcl, pcl, tim = get_fattime();
Sissors	7:da1f3328a496	3340	DEF_NAMEBUF;
Sissors	7:da1f3328a496	3341
Sissors	7:da1f3328a496	3342
Sissors	7:da1f3328a496	3343	res = chk_mounted(&path, &dj.fs, 1);
Sissors	7:da1f3328a496	3344	if (res == FR_OK) {
Sissors	7:da1f3328a496	3345	INIT_BUF(dj);
Sissors	7:da1f3328a496	3346	res = follow_path(&dj, path); /* Follow the file path */
Sissors	7:da1f3328a496	3347	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
Sissors	7:da1f3328a496	3348	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
Sissors	7:da1f3328a496	3349	res = FR_INVALID_NAME;
Sissors	7:da1f3328a496	3350	if (res == FR_NO_FILE) { /* Can create a new directory */
Sissors	7:da1f3328a496	3351	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
Sissors	7:da1f3328a496	3352	res = FR_OK;
Sissors	7:da1f3328a496	3353	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
Sissors	7:da1f3328a496	3354	if (dcl == 1) res = FR_INT_ERR;
Sissors	7:da1f3328a496	3355	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
Sissors	7:da1f3328a496	3356	if (res == FR_OK) /* Flush FAT */
Sissors	7:da1f3328a496	3357	res = move_window(dj.fs, 0);
Sissors	7:da1f3328a496	3358	if (res == FR_OK) { /* Initialize the new directory table */
Sissors	7:da1f3328a496	3359	dsc = clust2sect(dj.fs, dcl);
Sissors	7:da1f3328a496	3360	dir = dj.fs->win;
Sissors	7:da1f3328a496	3361	mem_set(dir, 0, SS(dj.fs));
Sissors	7:da1f3328a496	3362	mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */
Sissors	7:da1f3328a496	3363	dir[DIR_Name] = '.';
Sissors	7:da1f3328a496	3364	dir[DIR_Attr] = AM_DIR;
Sissors	7:da1f3328a496	3365	ST_DWORD(dir+DIR_WrtTime, tim);
Sissors	7:da1f3328a496	3366	st_clust(dir, dcl);
Sissors	7:da1f3328a496	3367	mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
Sissors	7:da1f3328a496	3368	dir[33] = '.'; pcl = dj.sclust;
Sissors	7:da1f3328a496	3369	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
Sissors	7:da1f3328a496	3370	pcl = 0;
Sissors	7:da1f3328a496	3371	st_clust(dir+SZ_DIR, pcl);
Sissors	7:da1f3328a496	3372	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
Sissors	7:da1f3328a496	3373	dj.fs->winsect = dsc++;
Sissors	7:da1f3328a496	3374	dj.fs->wflag = 1;
Sissors	7:da1f3328a496	3375	res = move_window(dj.fs, 0);
Sissors	7:da1f3328a496	3376	if (res != FR_OK) break;
Sissors	7:da1f3328a496	3377	mem_set(dir, 0, SS(dj.fs));
Sissors	7:da1f3328a496	3378	}
Sissors	7:da1f3328a496	3379	}
Sissors	7:da1f3328a496	3380	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
Sissors	7:da1f3328a496	3381	if (res != FR_OK) {
Sissors	7:da1f3328a496	3382	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
Sissors	7:da1f3328a496	3383	} else {
Sissors	7:da1f3328a496	3384	dir = dj.dir;
Sissors	7:da1f3328a496	3385	dir[DIR_Attr] = AM_DIR; /* Attribute */
Sissors	7:da1f3328a496	3386	ST_DWORD(dir+DIR_WrtTime, tim); /* Created time */
Sissors	7:da1f3328a496	3387	st_clust(dir, dcl); /* Table start cluster */
Sissors	7:da1f3328a496	3388	dj.fs->wflag = 1;
Sissors	7:da1f3328a496	3389	res = sync(dj.fs);
Sissors	7:da1f3328a496	3390	}
Sissors	7:da1f3328a496	3391	}
Sissors	7:da1f3328a496	3392	FREE_BUF();
Sissors	7:da1f3328a496	3393	}
Sissors	7:da1f3328a496	3394
Sissors	7:da1f3328a496	3395	LEAVE_FF(dj.fs, res);
Sissors	7:da1f3328a496	3396	}
Sissors	7:da1f3328a496	3397
Sissors	7:da1f3328a496	3398
Sissors	7:da1f3328a496	3399
Sissors	7:da1f3328a496	3400
Sissors	7:da1f3328a496	3401	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3402	/* Change Attribute */
Sissors	7:da1f3328a496	3403	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3404
Sissors	7:da1f3328a496	3405	FRESULT f_chmod (
Sissors	7:da1f3328a496	3406	const TCHAR path, / Pointer to the file path */
Sissors	7:da1f3328a496	3407	BYTE value, /* Attribute bits */
Sissors	7:da1f3328a496	3408	BYTE mask /* Attribute mask to change */
Sissors	7:da1f3328a496	3409	)
Sissors	7:da1f3328a496	3410	{
Sissors	7:da1f3328a496	3411	FRESULT res;
Sissors	7:da1f3328a496	3412	FATFS_DIR dj;
Sissors	7:da1f3328a496	3413	BYTE *dir;
Sissors	7:da1f3328a496	3414	DEF_NAMEBUF;
Sissors	7:da1f3328a496	3415
Sissors	7:da1f3328a496	3416
Sissors	7:da1f3328a496	3417	res = chk_mounted(&path, &dj.fs, 1);
Sissors	7:da1f3328a496	3418	if (res == FR_OK) {
Sissors	7:da1f3328a496	3419	INIT_BUF(dj);
Sissors	7:da1f3328a496	3420	res = follow_path(&dj, path); /* Follow the file path */
Sissors	7:da1f3328a496	3421	FREE_BUF();
Sissors	7:da1f3328a496	3422	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
Sissors	7:da1f3328a496	3423	res = FR_INVALID_NAME;
Sissors	7:da1f3328a496	3424	if (res == FR_OK) {
Sissors	7:da1f3328a496	3425	dir = dj.dir;
Sissors	7:da1f3328a496	3426	if (!dir) { /* Is it a root directory? */
Sissors	7:da1f3328a496	3427	res = FR_INVALID_NAME;
Sissors	7:da1f3328a496	3428	} else { /* File or sub directory */
Sissors	7:da1f3328a496	3429	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
Sissors	7:da1f3328a496	3430	dir[DIR_Attr] = (value & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
Sissors	7:da1f3328a496	3431	dj.fs->wflag = 1;
Sissors	7:da1f3328a496	3432	res = sync(dj.fs);
Sissors	7:da1f3328a496	3433	}
Sissors	7:da1f3328a496	3434	}
Sissors	7:da1f3328a496	3435	}
Sissors	7:da1f3328a496	3436
Sissors	7:da1f3328a496	3437	LEAVE_FF(dj.fs, res);
Sissors	7:da1f3328a496	3438	}
Sissors	7:da1f3328a496	3439
Sissors	7:da1f3328a496	3440
Sissors	7:da1f3328a496	3441
Sissors	7:da1f3328a496	3442
Sissors	7:da1f3328a496	3443	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3444	/* Change Timestamp */
Sissors	7:da1f3328a496	3445	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3446
Sissors	7:da1f3328a496	3447	FRESULT f_utime (
Sissors	7:da1f3328a496	3448	const TCHAR path, / Pointer to the file/directory name */
Sissors	7:da1f3328a496	3449	const FILINFO fno / Pointer to the time stamp to be set */
Sissors	7:da1f3328a496	3450	)
Sissors	7:da1f3328a496	3451	{
Sissors	7:da1f3328a496	3452	FRESULT res;
Sissors	7:da1f3328a496	3453	FATFS_DIR dj;
Sissors	7:da1f3328a496	3454	BYTE *dir;
Sissors	7:da1f3328a496	3455	DEF_NAMEBUF;
Sissors	7:da1f3328a496	3456
Sissors	7:da1f3328a496	3457
Sissors	7:da1f3328a496	3458	res = chk_mounted(&path, &dj.fs, 1);
Sissors	7:da1f3328a496	3459	if (res == FR_OK) {
Sissors	7:da1f3328a496	3460	INIT_BUF(dj);
Sissors	7:da1f3328a496	3461	res = follow_path(&dj, path); /* Follow the file path */
Sissors	7:da1f3328a496	3462	FREE_BUF();
Sissors	7:da1f3328a496	3463	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
Sissors	7:da1f3328a496	3464	res = FR_INVALID_NAME;
Sissors	7:da1f3328a496	3465	if (res == FR_OK) {
Sissors	7:da1f3328a496	3466	dir = dj.dir;
Sissors	7:da1f3328a496	3467	if (!dir) { /* Root directory */
Sissors	7:da1f3328a496	3468	res = FR_INVALID_NAME;
Sissors	7:da1f3328a496	3469	} else { /* File or sub-directory */
Sissors	7:da1f3328a496	3470	ST_WORD(dir+DIR_WrtTime, fno->ftime);
Sissors	7:da1f3328a496	3471	ST_WORD(dir+DIR_WrtDate, fno->fdate);
Sissors	7:da1f3328a496	3472	dj.fs->wflag = 1;
Sissors	7:da1f3328a496	3473	res = sync(dj.fs);
Sissors	7:da1f3328a496	3474	}
Sissors	7:da1f3328a496	3475	}
Sissors	7:da1f3328a496	3476	}
Sissors	7:da1f3328a496	3477
Sissors	7:da1f3328a496	3478	LEAVE_FF(dj.fs, res);
Sissors	7:da1f3328a496	3479	}
Sissors	7:da1f3328a496	3480
Sissors	7:da1f3328a496	3481
Sissors	7:da1f3328a496	3482
Sissors	7:da1f3328a496	3483
Sissors	7:da1f3328a496	3484	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3485	/* Rename File/Directory */
Sissors	7:da1f3328a496	3486	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3487
Sissors	7:da1f3328a496	3488	FRESULT f_rename (
Sissors	7:da1f3328a496	3489	const TCHAR path_old, / Pointer to the old name */
Sissors	7:da1f3328a496	3490	const TCHAR path_new / Pointer to the new name */
Sissors	7:da1f3328a496	3491	)
Sissors	7:da1f3328a496	3492	{
Sissors	7:da1f3328a496	3493	FRESULT res;
Sissors	7:da1f3328a496	3494	FATFS_DIR djo, djn;
Sissors	7:da1f3328a496	3495	BYTE buf[21], *dir;
Sissors	7:da1f3328a496	3496	DWORD dw;
Sissors	7:da1f3328a496	3497	DEF_NAMEBUF;
Sissors	7:da1f3328a496	3498
Sissors	7:da1f3328a496	3499
Sissors	7:da1f3328a496	3500	res = chk_mounted(&path_old, &djo.fs, 1);
Sissors	7:da1f3328a496	3501	if (res == FR_OK) {
Sissors	7:da1f3328a496	3502	djn.fs = djo.fs;
Sissors	7:da1f3328a496	3503	INIT_BUF(djo);
Sissors	7:da1f3328a496	3504	res = follow_path(&djo, path_old); /* Check old object */
Sissors	7:da1f3328a496	3505	if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
Sissors	7:da1f3328a496	3506	res = FR_INVALID_NAME;
Sissors	7:da1f3328a496	3507	#if _FS_LOCK
Sissors	7:da1f3328a496	3508	if (res == FR_OK) res = chk_lock(&djo, 2);
Sissors	7:da1f3328a496	3509	#endif
Sissors	7:da1f3328a496	3510	if (res == FR_OK) { /* Old object is found */
Sissors	7:da1f3328a496	3511	if (!djo.dir) { /* Is root dir? */
Sissors	7:da1f3328a496	3512	res = FR_NO_FILE;
Sissors	7:da1f3328a496	3513	} else {
Sissors	7:da1f3328a496	3514	mem_cpy(buf, djo.dir+DIR_Attr, 21); /* Save the object information except for name */
Sissors	7:da1f3328a496	3515	mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Check new object */
Sissors	7:da1f3328a496	3516	res = follow_path(&djn, path_new);
Sissors	7:da1f3328a496	3517	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
Sissors	7:da1f3328a496	3518	if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
Sissors	7:da1f3328a496	3519	/* Start critical section that an interruption or error can cause cross-link */
Sissors	7:da1f3328a496	3520	res = dir_register(&djn); /* Register the new entry */
Sissors	7:da1f3328a496	3521	if (res == FR_OK) {
Sissors	7:da1f3328a496	3522	dir = djn.dir; /* Copy object information except for name */
Sissors	7:da1f3328a496	3523	mem_cpy(dir+13, buf+2, 19);
Sissors	7:da1f3328a496	3524	dir[DIR_Attr] = buf[0] \| AM_ARC;
Sissors	7:da1f3328a496	3525	djo.fs->wflag = 1;
Sissors	7:da1f3328a496	3526	if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) { /* Update .. entry in the directory if needed */
Sissors	7:da1f3328a496	3527	dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
Sissors	7:da1f3328a496	3528	if (!dw) {
Sissors	7:da1f3328a496	3529	res = FR_INT_ERR;
Sissors	7:da1f3328a496	3530	} else {
Sissors	7:da1f3328a496	3531	res = move_window(djo.fs, dw);
Sissors	7:da1f3328a496	3532	dir = djo.fs->win+SZ_DIR; /* .. entry */
Sissors	7:da1f3328a496	3533	if (res == FR_OK && dir[1] == '.') {
Sissors	7:da1f3328a496	3534	dw = (djo.fs->fs_type == FS_FAT32 && djn.sclust == djo.fs->dirbase) ? 0 : djn.sclust;
Sissors	7:da1f3328a496	3535	st_clust(dir, dw);
Sissors	7:da1f3328a496	3536	djo.fs->wflag = 1;
Sissors	7:da1f3328a496	3537	}
Sissors	7:da1f3328a496	3538	}
Sissors	7:da1f3328a496	3539	}
Sissors	7:da1f3328a496	3540	if (res == FR_OK) {
Sissors	7:da1f3328a496	3541	res = dir_remove(&djo); /* Remove old entry */
Sissors	7:da1f3328a496	3542	if (res == FR_OK)
Sissors	7:da1f3328a496	3543	res = sync(djo.fs);
Sissors	7:da1f3328a496	3544	}
Sissors	7:da1f3328a496	3545	}
Sissors	7:da1f3328a496	3546	/* End critical section */
Sissors	7:da1f3328a496	3547	}
Sissors	7:da1f3328a496	3548	}
Sissors	7:da1f3328a496	3549	}
Sissors	7:da1f3328a496	3550	FREE_BUF();
Sissors	7:da1f3328a496	3551	}
Sissors	7:da1f3328a496	3552	LEAVE_FF(djo.fs, res);
Sissors	7:da1f3328a496	3553	}
Sissors	7:da1f3328a496	3554
Sissors	7:da1f3328a496	3555	#endif /* !_FS_READONLY */
Sissors	7:da1f3328a496	3556	#endif /* _FS_MINIMIZE == 0 */
Sissors	7:da1f3328a496	3557	#endif /* _FS_MINIMIZE <= 1 */
Sissors	7:da1f3328a496	3558	#endif /* _FS_MINIMIZE <= 2 */
Sissors	7:da1f3328a496	3559
Sissors	7:da1f3328a496	3560
Sissors	7:da1f3328a496	3561
Sissors	7:da1f3328a496	3562	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3563	/* Forward data to the stream directly (available on only tiny cfg) */
Sissors	7:da1f3328a496	3564	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3565	#if _USE_FORWARD && _FS_TINY
Sissors	7:da1f3328a496	3566
Sissors	7:da1f3328a496	3567	FRESULT f_forward (
Sissors	7:da1f3328a496	3568	FIL fp, / Pointer to the file object */
Sissors	7:da1f3328a496	3569	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
Sissors	7:da1f3328a496	3570	UINT btr, /* Number of bytes to forward */
Sissors	7:da1f3328a496	3571	UINT bf / Pointer to number of bytes forwarded */
Sissors	7:da1f3328a496	3572	)
Sissors	7:da1f3328a496	3573	{
Sissors	7:da1f3328a496	3574	FRESULT res;
Sissors	7:da1f3328a496	3575	DWORD remain, clst, sect;
Sissors	7:da1f3328a496	3576	UINT rcnt;
Sissors	7:da1f3328a496	3577	BYTE csect;
Sissors	7:da1f3328a496	3578
Sissors	7:da1f3328a496	3579
Sissors	7:da1f3328a496	3580	bf = 0; / Clear transfer byte counter */
Sissors	7:da1f3328a496	3581
Sissors	7:da1f3328a496	3582	if (!fp) return FR_INVALID_OBJECT;
Sissors	7:da1f3328a496	3583
Sissors	7:da1f3328a496	3584	res = validate(fp); /* Check validity of the object */
Sissors	7:da1f3328a496	3585	if (res != FR_OK) LEAVE_FF(fp->fs, res);
Sissors	7:da1f3328a496	3586	if (fp->flag & FA__ERROR) /* Check error flag */
Sissors	7:da1f3328a496	3587	LEAVE_FF(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	3588	if (!(fp->flag & FA_READ)) /* Check access mode */
Sissors	7:da1f3328a496	3589	LEAVE_FF(fp->fs, FR_DENIED);
Sissors	7:da1f3328a496	3590
Sissors	7:da1f3328a496	3591	remain = fp->fsize - fp->fptr;
Sissors	7:da1f3328a496	3592	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
Sissors	7:da1f3328a496	3593
Sissors	7:da1f3328a496	3594	for ( ; btr && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
Sissors	7:da1f3328a496	3595	fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
Sissors	7:da1f3328a496	3596	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
Sissors	7:da1f3328a496	3597	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
Sissors	7:da1f3328a496	3598	if (!csect) { /* On the cluster boundary? */
Sissors	7:da1f3328a496	3599	clst = (fp->fptr == 0) ? /* On the top of the file? */
Sissors	7:da1f3328a496	3600	fp->sclust : get_fat(fp->fs, fp->clust);
Sissors	7:da1f3328a496	3601	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	3602	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	3603	fp->clust = clst; /* Update current cluster */
Sissors	7:da1f3328a496	3604	}
Sissors	7:da1f3328a496	3605	}
Sissors	7:da1f3328a496	3606	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
Sissors	7:da1f3328a496	3607	if (!sect) ABORT(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	3608	sect += csect;
Sissors	7:da1f3328a496	3609	if (move_window(fp->fs, sect)) /* Move sector window */
Sissors	7:da1f3328a496	3610	ABORT(fp->fs, FR_DISK_ERR);
Sissors	7:da1f3328a496	3611	fp->dsect = sect;
Sissors	7:da1f3328a496	3612	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
Sissors	7:da1f3328a496	3613	if (rcnt > btr) rcnt = btr;
Sissors	7:da1f3328a496	3614	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
Sissors	7:da1f3328a496	3615	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
Sissors	7:da1f3328a496	3616	}
Sissors	7:da1f3328a496	3617
Sissors	7:da1f3328a496	3618	LEAVE_FF(fp->fs, FR_OK);
Sissors	7:da1f3328a496	3619	}
Sissors	7:da1f3328a496	3620	#endif /* _USE_FORWARD */
Sissors	7:da1f3328a496	3621
Sissors	7:da1f3328a496	3622
Sissors	7:da1f3328a496	3623
Sissors	7:da1f3328a496	3624	#if _USE_MKFS && !_FS_READONLY
Sissors	7:da1f3328a496	3625	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3626	/* Create File System on the Drive */
Sissors	7:da1f3328a496	3627	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3628	#define N_ROOTDIR 512 /* Number of root dir entries for FAT12/16 */
Sissors	7:da1f3328a496	3629	#define N_FATS 1 /* Number of FAT copies (1 or 2) */
Sissors	7:da1f3328a496	3630
Sissors	7:da1f3328a496	3631
Sissors	7:da1f3328a496	3632	FRESULT f_mkfs (
Sissors	7:da1f3328a496	3633	BYTE drv, /* Logical drive number */
Sissors	7:da1f3328a496	3634	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
Sissors	7:da1f3328a496	3635	UINT au /* Allocation unit size [bytes] */
Sissors	7:da1f3328a496	3636	)
Sissors	7:da1f3328a496	3637	{
Sissors	7:da1f3328a496	3638	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
Sissors	7:da1f3328a496	3639	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
Sissors	7:da1f3328a496	3640	BYTE fmt, md, sys, *tbl, pdrv, part;
Sissors	7:da1f3328a496	3641	DWORD n_clst, vs, n, wsect;
Sissors	7:da1f3328a496	3642	UINT i;
Sissors	7:da1f3328a496	3643	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
Sissors	7:da1f3328a496	3644	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
Sissors	7:da1f3328a496	3645	FATFS *fs;
Sissors	7:da1f3328a496	3646	DSTATUS stat;
Sissors	7:da1f3328a496	3647
Sissors	7:da1f3328a496	3648
Sissors	7:da1f3328a496	3649	/* Check mounted drive and clear work area */
Sissors	7:da1f3328a496	3650	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
Sissors	7:da1f3328a496	3651	if (sfd > 1) return FR_INVALID_PARAMETER;
Sissors	7:da1f3328a496	3652	if (au & (au - 1)) return FR_INVALID_PARAMETER;
Sissors	7:da1f3328a496	3653	fs = FatFs[drv];
Sissors	7:da1f3328a496	3654	if (!fs) return FR_NOT_ENABLED;
Sissors	7:da1f3328a496	3655	fs->fs_type = 0;
Sissors	7:da1f3328a496	3656	pdrv = LD2PD(drv); /* Physical drive */
Sissors	7:da1f3328a496	3657	part = LD2PT(drv); /* Partition (0:auto detect, 1-4:get from partition table)*/
Sissors	7:da1f3328a496	3658
Sissors	7:da1f3328a496	3659	/* Get disk statics */
Sissors	7:da1f3328a496	3660	stat = disk_initialize(pdrv);
Sissors	7:da1f3328a496	3661	if (stat & STA_NOINIT) return FR_NOT_READY;
Sissors	7:da1f3328a496	3662	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
Sissors	7:da1f3328a496	3663	#if _MAX_SS != 512 /* Get disk sector size */
Sissors	7:da1f3328a496	3664	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS)
Sissors	7:da1f3328a496	3665	return FR_DISK_ERR;
Sissors	7:da1f3328a496	3666	#endif
Sissors	7:da1f3328a496	3667	if (_MULTI_PARTITION && part) {
Sissors	7:da1f3328a496	3668	/* Get partition information from partition table in the MBR */
Sissors	7:da1f3328a496	3669	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
Sissors	7:da1f3328a496	3670	if (LD_WORD(fs->win+BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
Sissors	7:da1f3328a496	3671	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
Sissors	7:da1f3328a496	3672	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
Sissors	7:da1f3328a496	3673	b_vol = LD_DWORD(tbl+8); /* Volume start sector */
Sissors	7:da1f3328a496	3674	n_vol = LD_DWORD(tbl+12); /* Volume size */
Sissors	7:da1f3328a496	3675	} else {
Sissors	7:da1f3328a496	3676	/* Create a partition in this function */
Sissors	7:da1f3328a496	3677	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
Sissors	7:da1f3328a496	3678	return FR_DISK_ERR;
Sissors	7:da1f3328a496	3679	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
Sissors	7:da1f3328a496	3680	n_vol -= b_vol; /* Volume size */
Sissors	7:da1f3328a496	3681	}
Sissors	7:da1f3328a496	3682
Sissors	7:da1f3328a496	3683	if (!au) { /* AU auto selection */
Sissors	7:da1f3328a496	3684	vs = n_vol / (2000 / (SS(fs) / 512));
Sissors	7:da1f3328a496	3685	for (i = 0; vs < vst[i]; i++) ;
Sissors	7:da1f3328a496	3686	au = cst[i];
Sissors	7:da1f3328a496	3687	}
Sissors	7:da1f3328a496	3688	au /= SS(fs); /* Number of sectors per cluster */
Sissors	7:da1f3328a496	3689	if (au == 0) au = 1;
Sissors	7:da1f3328a496	3690	if (au > 128) au = 128;
Sissors	7:da1f3328a496	3691
Sissors	7:da1f3328a496	3692	/* Pre-compute number of clusters and FAT sub-type */
Sissors	7:da1f3328a496	3693	n_clst = n_vol / au;
Sissors	7:da1f3328a496	3694	fmt = FS_FAT12;
Sissors	7:da1f3328a496	3695	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
Sissors	7:da1f3328a496	3696	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
Sissors	7:da1f3328a496	3697
Sissors	7:da1f3328a496	3698	/* Determine offset and size of FAT structure */
Sissors	7:da1f3328a496	3699	if (fmt == FS_FAT32) {
Sissors	7:da1f3328a496	3700	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
Sissors	7:da1f3328a496	3701	n_rsv = 32;
Sissors	7:da1f3328a496	3702	n_dir = 0;
Sissors	7:da1f3328a496	3703	} else {
Sissors	7:da1f3328a496	3704	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
Sissors	7:da1f3328a496	3705	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
Sissors	7:da1f3328a496	3706	n_rsv = 1;
Sissors	7:da1f3328a496	3707	n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
Sissors	7:da1f3328a496	3708	}
Sissors	7:da1f3328a496	3709	b_fat = b_vol + n_rsv; /* FAT area start sector */
Sissors	7:da1f3328a496	3710	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
Sissors	7:da1f3328a496	3711	b_data = b_dir + n_dir; /* Data area start sector */
Sissors	7:da1f3328a496	3712	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
Sissors	7:da1f3328a496	3713
Sissors	7:da1f3328a496	3714	/* Align data start sector to erase block boundary (for flash memory media) */
Sissors	7:da1f3328a496	3715	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
Sissors	7:da1f3328a496	3716	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
Sissors	7:da1f3328a496	3717	n = (n - b_data) / N_FATS;
Sissors	7:da1f3328a496	3718	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
Sissors	7:da1f3328a496	3719	n_rsv += n;
Sissors	7:da1f3328a496	3720	b_fat += n;
Sissors	7:da1f3328a496	3721	} else { /* FAT12/16: Expand FAT size */
Sissors	7:da1f3328a496	3722	n_fat += n;
Sissors	7:da1f3328a496	3723	}
Sissors	7:da1f3328a496	3724
Sissors	7:da1f3328a496	3725	/* Determine number of clusters and final check of validity of the FAT sub-type */
Sissors	7:da1f3328a496	3726	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
Sissors	7:da1f3328a496	3727	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
Sissors	7:da1f3328a496	3728	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
Sissors	7:da1f3328a496	3729	return FR_MKFS_ABORTED;
Sissors	7:da1f3328a496	3730
Sissors	7:da1f3328a496	3731	switch (fmt) { /* Determine system ID for partition table */
Sissors	7:da1f3328a496	3732	case FS_FAT12: sys = 0x01; break;
Sissors	7:da1f3328a496	3733	case FS_FAT16: sys = (n_vol < 0x10000) ? 0x04 : 0x06; break;
Sissors	7:da1f3328a496	3734	default: sys = 0x0C;
Sissors	7:da1f3328a496	3735	}
Sissors	7:da1f3328a496	3736
Sissors	7:da1f3328a496	3737	if (_MULTI_PARTITION && part) {
Sissors	7:da1f3328a496	3738	/* Update system ID in the partition table */
Sissors	7:da1f3328a496	3739	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
Sissors	7:da1f3328a496	3740	tbl[4] = sys;
Sissors	7:da1f3328a496	3741	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
Sissors	7:da1f3328a496	3742	md = 0xF8;
Sissors	7:da1f3328a496	3743	} else {
Sissors	7:da1f3328a496	3744	if (sfd) { /* No partition table (SFD) */
Sissors	7:da1f3328a496	3745	md = 0xF0;
Sissors	7:da1f3328a496	3746	} else { /* Create partition table (FDISK) */
Sissors	7:da1f3328a496	3747	mem_set(fs->win, 0, SS(fs));
Sissors	7:da1f3328a496	3748	tbl = fs->win+MBR_Table; /* Create partition table for single partition in the drive */
Sissors	7:da1f3328a496	3749	tbl[1] = 1; /* Partition start head */
Sissors	7:da1f3328a496	3750	tbl[2] = 1; /* Partition start sector */
Sissors	7:da1f3328a496	3751	tbl[3] = 0; /* Partition start cylinder */
Sissors	7:da1f3328a496	3752	tbl[4] = sys; /* System type */
Sissors	7:da1f3328a496	3753	tbl[5] = 254; /* Partition end head */
Sissors	7:da1f3328a496	3754	n = (b_vol + n_vol) / 63 / 255;
Sissors	7:da1f3328a496	3755	tbl[6] = (BYTE)((n >> 2) \| 63); /* Partition end sector */
Sissors	7:da1f3328a496	3756	tbl[7] = (BYTE)n; /* End cylinder */
Sissors	7:da1f3328a496	3757	ST_DWORD(tbl+8, 63); /* Partition start in LBA */
Sissors	7:da1f3328a496	3758	ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
Sissors	7:da1f3328a496	3759	ST_WORD(fs->win+BS_55AA, 0xAA55); /* MBR signature */
Sissors	7:da1f3328a496	3760	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR sector */
Sissors	7:da1f3328a496	3761	return FR_DISK_ERR;
Sissors	7:da1f3328a496	3762	md = 0xF8;
Sissors	7:da1f3328a496	3763	}
Sissors	7:da1f3328a496	3764	}
Sissors	7:da1f3328a496	3765
Sissors	7:da1f3328a496	3766	/* Create BPB in the VBR */
Sissors	7:da1f3328a496	3767	tbl = fs->win; /* Clear sector */
Sissors	7:da1f3328a496	3768	mem_set(tbl, 0, SS(fs));
Sissors	7:da1f3328a496	3769	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
Sissors	7:da1f3328a496	3770	i = SS(fs); /* Sector size */
Sissors	7:da1f3328a496	3771	ST_WORD(tbl+BPB_BytsPerSec, i);
Sissors	7:da1f3328a496	3772	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
Sissors	7:da1f3328a496	3773	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
Sissors	7:da1f3328a496	3774	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
Sissors	7:da1f3328a496	3775	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of rootdir entries */
Sissors	7:da1f3328a496	3776	ST_WORD(tbl+BPB_RootEntCnt, i);
Sissors	7:da1f3328a496	3777	if (n_vol < 0x10000) { /* Number of total sectors */
Sissors	7:da1f3328a496	3778	ST_WORD(tbl+BPB_TotSec16, n_vol);
Sissors	7:da1f3328a496	3779	} else {
Sissors	7:da1f3328a496	3780	ST_DWORD(tbl+BPB_TotSec32, n_vol);
Sissors	7:da1f3328a496	3781	}
Sissors	7:da1f3328a496	3782	tbl[BPB_Media] = md; /* Media descriptor */
Sissors	7:da1f3328a496	3783	ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
Sissors	7:da1f3328a496	3784	ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
Sissors	7:da1f3328a496	3785	ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
Sissors	7:da1f3328a496	3786	n = get_fattime(); /* Use current time as VSN */
Sissors	7:da1f3328a496	3787	if (fmt == FS_FAT32) {
Sissors	7:da1f3328a496	3788	ST_DWORD(tbl+BS_VolID32, n); /* VSN */
Sissors	7:da1f3328a496	3789	ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
Sissors	7:da1f3328a496	3790	ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
Sissors	7:da1f3328a496	3791	ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (VBR+1) */
Sissors	7:da1f3328a496	3792	ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
Sissors	7:da1f3328a496	3793	tbl[BS_DrvNum32] = 0x80; /* Drive number */
Sissors	7:da1f3328a496	3794	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
Sissors	7:da1f3328a496	3795	mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
Sissors	7:da1f3328a496	3796	} else {
Sissors	7:da1f3328a496	3797	ST_DWORD(tbl+BS_VolID, n); /* VSN */
Sissors	7:da1f3328a496	3798	ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
Sissors	7:da1f3328a496	3799	tbl[BS_DrvNum] = 0x80; /* Drive number */
Sissors	7:da1f3328a496	3800	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
Sissors	7:da1f3328a496	3801	mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
Sissors	7:da1f3328a496	3802	}
Sissors	7:da1f3328a496	3803	ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
Sissors	7:da1f3328a496	3804	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
Sissors	7:da1f3328a496	3805	return FR_DISK_ERR;
Sissors	7:da1f3328a496	3806	if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR+6) */
Sissors	7:da1f3328a496	3807	disk_write(pdrv, tbl, b_vol + 6, 1);
Sissors	7:da1f3328a496	3808
Sissors	7:da1f3328a496	3809	/* Initialize FAT area */
Sissors	7:da1f3328a496	3810	wsect = b_fat;
Sissors	7:da1f3328a496	3811	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
Sissors	7:da1f3328a496	3812	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
Sissors	7:da1f3328a496	3813	n = md; /* Media descriptor byte */
Sissors	7:da1f3328a496	3814	if (fmt != FS_FAT32) {
Sissors	7:da1f3328a496	3815	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
Sissors	7:da1f3328a496	3816	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
Sissors	7:da1f3328a496	3817	} else {
Sissors	7:da1f3328a496	3818	n \|= 0xFFFFFF00;
Sissors	7:da1f3328a496	3819	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
Sissors	7:da1f3328a496	3820	ST_DWORD(tbl+4, 0xFFFFFFFF);
Sissors	7:da1f3328a496	3821	ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
Sissors	7:da1f3328a496	3822	}
Sissors	7:da1f3328a496	3823	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
Sissors	7:da1f3328a496	3824	return FR_DISK_ERR;
Sissors	7:da1f3328a496	3825	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
Sissors	7:da1f3328a496	3826	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
Sissors	7:da1f3328a496	3827	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
Sissors	7:da1f3328a496	3828	return FR_DISK_ERR;
Sissors	7:da1f3328a496	3829	}
Sissors	7:da1f3328a496	3830	}
Sissors	7:da1f3328a496	3831
Sissors	7:da1f3328a496	3832	/* Initialize root directory */
Sissors	7:da1f3328a496	3833	i = (fmt == FS_FAT32) ? au : n_dir;
Sissors	7:da1f3328a496	3834	do {
Sissors	7:da1f3328a496	3835	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
Sissors	7:da1f3328a496	3836	return FR_DISK_ERR;
Sissors	7:da1f3328a496	3837	} while (--i);
Sissors	7:da1f3328a496	3838
Sissors	7:da1f3328a496	3839	#if _USE_ERASE /* Erase data area if needed */
Sissors	7:da1f3328a496	3840	{
Sissors	7:da1f3328a496	3841	DWORD eb[2];
Sissors	7:da1f3328a496	3842
Sissors	7:da1f3328a496	3843	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
Sissors	7:da1f3328a496	3844	disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
Sissors	7:da1f3328a496	3845	}
Sissors	7:da1f3328a496	3846	#endif
Sissors	7:da1f3328a496	3847
Sissors	7:da1f3328a496	3848	/* Create FSInfo if needed */
Sissors	7:da1f3328a496	3849	if (fmt == FS_FAT32) {
Sissors	7:da1f3328a496	3850	ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
Sissors	7:da1f3328a496	3851	ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
Sissors	7:da1f3328a496	3852	ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
Sissors	7:da1f3328a496	3853	ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
Sissors	7:da1f3328a496	3854	ST_WORD(tbl+BS_55AA, 0xAA55);
Sissors	7:da1f3328a496	3855	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
Sissors	7:da1f3328a496	3856	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
Sissors	7:da1f3328a496	3857	}
Sissors	7:da1f3328a496	3858
Sissors	7:da1f3328a496	3859	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
Sissors	7:da1f3328a496	3860	}
Sissors	7:da1f3328a496	3861
Sissors	7:da1f3328a496	3862
Sissors	7:da1f3328a496	3863	#if _MULTI_PARTITION == 2
Sissors	7:da1f3328a496	3864	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3865	/* Divide Physical Drive */
Sissors	7:da1f3328a496	3866	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3867
Sissors	7:da1f3328a496	3868	FRESULT f_fdisk (
Sissors	7:da1f3328a496	3869	BYTE pdrv, /* Physical drive number */
Sissors	7:da1f3328a496	3870	const DWORD szt[], /* Pointer to the size table for each partitions */
Sissors	7:da1f3328a496	3871	void* work /* Pointer to the working buffer */
Sissors	7:da1f3328a496	3872	)
Sissors	7:da1f3328a496	3873	{
Sissors	7:da1f3328a496	3874	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
Sissors	7:da1f3328a496	3875	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
Sissors	7:da1f3328a496	3876	DSTATUS stat;
Sissors	7:da1f3328a496	3877	DWORD sz_disk, sz_part, s_part;
Sissors	7:da1f3328a496	3878
Sissors	7:da1f3328a496	3879
Sissors	7:da1f3328a496	3880	stat = disk_initialize(pdrv);
Sissors	7:da1f3328a496	3881	if (stat & STA_NOINIT) return FR_NOT_READY;
Sissors	7:da1f3328a496	3882	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
Sissors	7:da1f3328a496	3883	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
Sissors	7:da1f3328a496	3884
Sissors	7:da1f3328a496	3885	/* Determine CHS in the table regardless of the drive geometry */
Sissors	7:da1f3328a496	3886	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
Sissors	7:da1f3328a496	3887	if (n == 256) n--;
Sissors	7:da1f3328a496	3888	e_hd = n - 1;
Sissors	7:da1f3328a496	3889	sz_cyl = 63 * n;
Sissors	7:da1f3328a496	3890	tot_cyl = sz_disk / sz_cyl;
Sissors	7:da1f3328a496	3891
Sissors	7:da1f3328a496	3892	/* Create partition table */
Sissors	7:da1f3328a496	3893	mem_set(buf, 0, _MAX_SS);
Sissors	7:da1f3328a496	3894	p = buf + MBR_Table; b_cyl = 0;
Sissors	7:da1f3328a496	3895	for (i = 0; i < 4; i++, p += SZ_PTE) {
Sissors	7:da1f3328a496	3896	p_cyl = (szt[i] <= 100) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
Sissors	7:da1f3328a496	3897	if (!p_cyl) continue;
Sissors	7:da1f3328a496	3898	s_part = (DWORD)sz_cyl * b_cyl;
Sissors	7:da1f3328a496	3899	sz_part = (DWORD)sz_cyl * p_cyl;
Sissors	7:da1f3328a496	3900	if (i == 0) { /* Exclude first track of cylinder 0 */
Sissors	7:da1f3328a496	3901	s_hd = 1;
Sissors	7:da1f3328a496	3902	s_part += 63; sz_part -= 63;
Sissors	7:da1f3328a496	3903	} else {
Sissors	7:da1f3328a496	3904	s_hd = 0;
Sissors	7:da1f3328a496	3905	}
Sissors	7:da1f3328a496	3906	e_cyl = b_cyl + p_cyl - 1;
Sissors	7:da1f3328a496	3907	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
Sissors	7:da1f3328a496	3908
Sissors	7:da1f3328a496	3909	/* Set partition table */
Sissors	7:da1f3328a496	3910	p[1] = s_hd; /* Start head */
Sissors	7:da1f3328a496	3911	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
Sissors	7:da1f3328a496	3912	p[3] = (BYTE)b_cyl; /* Start cylinder */
Sissors	7:da1f3328a496	3913	p[4] = 0x06; /* System type (temporary setting) */
Sissors	7:da1f3328a496	3914	p[5] = e_hd; /* End head */
Sissors	7:da1f3328a496	3915	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
Sissors	7:da1f3328a496	3916	p[7] = (BYTE)e_cyl; /* End cylinder */
Sissors	7:da1f3328a496	3917	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
Sissors	7:da1f3328a496	3918	ST_DWORD(p + 12, sz_part); /* Partition size */
Sissors	7:da1f3328a496	3919
Sissors	7:da1f3328a496	3920	/* Next partition */
Sissors	7:da1f3328a496	3921	b_cyl += p_cyl;
Sissors	7:da1f3328a496	3922	}
Sissors	7:da1f3328a496	3923	ST_WORD(p, 0xAA55);
Sissors	7:da1f3328a496	3924
Sissors	7:da1f3328a496	3925	/* Write it to the MBR */
Sissors	7:da1f3328a496	3926	return (disk_write(pdrv, buf, 0, 1) \|\| disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
Sissors	7:da1f3328a496	3927	}
Sissors	7:da1f3328a496	3928
Sissors	7:da1f3328a496	3929
Sissors	7:da1f3328a496	3930	#endif /* _MULTI_PARTITION == 2 */
Sissors	7:da1f3328a496	3931	#endif /* _USE_MKFS && !_FS_READONLY */
Sissors	7:da1f3328a496	3932
Sissors	7:da1f3328a496	3933
Sissors	7:da1f3328a496	3934
Sissors	7:da1f3328a496	3935
Sissors	7:da1f3328a496	3936	#if _USE_STRFUNC
Sissors	7:da1f3328a496	3937	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3938	/* Get a string from the file */
Sissors	7:da1f3328a496	3939	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3940	TCHAR* f_gets (
Sissors	7:da1f3328a496	3941	TCHAR* buff, /* Pointer to the string buffer to read */
Sissors	7:da1f3328a496	3942	int len, /* Size of string buffer (characters) */
Sissors	7:da1f3328a496	3943	FIL* fil /* Pointer to the file object */
Sissors	7:da1f3328a496	3944	)
Sissors	7:da1f3328a496	3945	{
Sissors	7:da1f3328a496	3946	int n = 0;
Sissors	7:da1f3328a496	3947	TCHAR c, *p = buff;
Sissors	7:da1f3328a496	3948	BYTE s[2];
Sissors	7:da1f3328a496	3949	UINT rc;
Sissors	7:da1f3328a496	3950
Sissors	7:da1f3328a496	3951
Sissors	7:da1f3328a496	3952	while (n < len - 1) { /* Read bytes until buffer gets filled */
Sissors	7:da1f3328a496	3953	f_read(fil, s, 1, &rc);
Sissors	7:da1f3328a496	3954	if (rc != 1) break; /* Break on EOF or error */
Sissors	7:da1f3328a496	3955	c = s[0];
Sissors	7:da1f3328a496	3956	#if _LFN_UNICODE /* Read a character in UTF-8 encoding */
Sissors	7:da1f3328a496	3957	if (c >= 0x80) {
Sissors	7:da1f3328a496	3958	if (c < 0xC0) continue; /* Skip stray trailer */
Sissors	7:da1f3328a496	3959	if (c < 0xE0) { /* Two-byte sequence */
Sissors	7:da1f3328a496	3960	f_read(fil, s, 1, &rc);
Sissors	7:da1f3328a496	3961	if (rc != 1) break;
Sissors	7:da1f3328a496	3962	c = ((c & 0x1F) << 6) \| (s[0] & 0x3F);
Sissors	7:da1f3328a496	3963	if (c < 0x80) c = '?';
Sissors	7:da1f3328a496	3964	} else {
Sissors	7:da1f3328a496	3965	if (c < 0xF0) { /* Three-byte sequence */
Sissors	7:da1f3328a496	3966	f_read(fil, s, 2, &rc);
Sissors	7:da1f3328a496	3967	if (rc != 2) break;
Sissors	7:da1f3328a496	3968	c = (c << 12) \| ((s[0] & 0x3F) << 6) \| (s[1] & 0x3F);
Sissors	7:da1f3328a496	3969	if (c < 0x800) c = '?';
Sissors	7:da1f3328a496	3970	} else { /* Reject four-byte sequence */
Sissors	7:da1f3328a496	3971	c = '?';
Sissors	7:da1f3328a496	3972	}
Sissors	7:da1f3328a496	3973	}
Sissors	7:da1f3328a496	3974	}
Sissors	7:da1f3328a496	3975	#endif
Sissors	7:da1f3328a496	3976	#if _USE_STRFUNC >= 2
Sissors	7:da1f3328a496	3977	if (c == '\r') continue; /* Strip '\r' */
Sissors	7:da1f3328a496	3978	#endif
Sissors	7:da1f3328a496	3979	*p++ = c;
Sissors	7:da1f3328a496	3980	n++;
Sissors	7:da1f3328a496	3981	if (c == '\n') break; /* Break on EOL */
Sissors	7:da1f3328a496	3982	}
Sissors	7:da1f3328a496	3983	*p = 0;
Sissors	7:da1f3328a496	3984	return n ? buff : 0; /* When no data read (eof or error), return with error. */
Sissors	7:da1f3328a496	3985	}
Sissors	7:da1f3328a496	3986
Sissors	7:da1f3328a496	3987
Sissors	7:da1f3328a496	3988
Sissors	7:da1f3328a496	3989	#if !_FS_READONLY
Sissors	7:da1f3328a496	3990	#include <stdarg.h>
Sissors	7:da1f3328a496	3991	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3992	/* Put a character to the file */
Sissors	7:da1f3328a496	3993	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	3994	int f_putc (
Sissors	7:da1f3328a496	3995	TCHAR c, /* A character to be output */
Sissors	7:da1f3328a496	3996	FIL* fil /* Pointer to the file object */
Sissors	7:da1f3328a496	3997	)
Sissors	7:da1f3328a496	3998	{
Sissors	7:da1f3328a496	3999	UINT bw, btw;
Sissors	7:da1f3328a496	4000	BYTE s[3];
Sissors	7:da1f3328a496	4001
Sissors	7:da1f3328a496	4002
Sissors	7:da1f3328a496	4003	#if _USE_STRFUNC >= 2
Sissors	7:da1f3328a496	4004	if (c == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */
Sissors	7:da1f3328a496	4005	#endif
Sissors	7:da1f3328a496	4006
Sissors	7:da1f3328a496	4007	#if _LFN_UNICODE /* Write the character in UTF-8 encoding */
Sissors	7:da1f3328a496	4008	if (c < 0x80) { /* 7-bit */
Sissors	7:da1f3328a496	4009	s[0] = (BYTE)c;
Sissors	7:da1f3328a496	4010	btw = 1;
Sissors	7:da1f3328a496	4011	} else {
Sissors	7:da1f3328a496	4012	if (c < 0x800) { /* 11-bit */
Sissors	7:da1f3328a496	4013	s[0] = (BYTE)(0xC0 \| (c >> 6));
Sissors	7:da1f3328a496	4014	s[1] = (BYTE)(0x80 \| (c & 0x3F));
Sissors	7:da1f3328a496	4015	btw = 2;
Sissors	7:da1f3328a496	4016	} else { /* 16-bit */
Sissors	7:da1f3328a496	4017	s[0] = (BYTE)(0xE0 \| (c >> 12));
Sissors	7:da1f3328a496	4018	s[1] = (BYTE)(0x80 \| ((c >> 6) & 0x3F));
Sissors	7:da1f3328a496	4019	s[2] = (BYTE)(0x80 \| (c & 0x3F));
Sissors	7:da1f3328a496	4020	btw = 3;
Sissors	7:da1f3328a496	4021	}
Sissors	7:da1f3328a496	4022	}
Sissors	7:da1f3328a496	4023	#else /* Write the character without conversion */
Sissors	7:da1f3328a496	4024	s[0] = (BYTE)c;
Sissors	7:da1f3328a496	4025	btw = 1;
Sissors	7:da1f3328a496	4026	#endif
Sissors	7:da1f3328a496	4027	f_write(fil, s, btw, &bw); /* Write the char to the file */
Sissors	7:da1f3328a496	4028	return (bw == btw) ? 1 : EOF; /* Return the result */
Sissors	7:da1f3328a496	4029	}
Sissors	7:da1f3328a496	4030
Sissors	7:da1f3328a496	4031
Sissors	7:da1f3328a496	4032
Sissors	7:da1f3328a496	4033
Sissors	7:da1f3328a496	4034	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	4035	/* Put a string to the file */
Sissors	7:da1f3328a496	4036	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	4037	int f_puts (
Sissors	7:da1f3328a496	4038	const TCHAR* str, /* Pointer to the string to be output */
Sissors	7:da1f3328a496	4039	FIL* fil /* Pointer to the file object */
Sissors	7:da1f3328a496	4040	)
Sissors	7:da1f3328a496	4041	{
Sissors	7:da1f3328a496	4042	int n;
Sissors	7:da1f3328a496	4043
Sissors	7:da1f3328a496	4044
Sissors	7:da1f3328a496	4045	for (n = 0; *str; str++, n++) {
Sissors	7:da1f3328a496	4046	if (f_putc(*str, fil) == EOF) return EOF;
Sissors	7:da1f3328a496	4047	}
Sissors	7:da1f3328a496	4048	return n;
Sissors	7:da1f3328a496	4049	}
Sissors	7:da1f3328a496	4050
Sissors	7:da1f3328a496	4051
Sissors	7:da1f3328a496	4052
Sissors	7:da1f3328a496	4053
Sissors	7:da1f3328a496	4054	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	4055	/* Put a formatted string to the file */
Sissors	7:da1f3328a496	4056	/-----------------------------------------------------------------------/
Sissors	7:da1f3328a496	4057	int f_printf (
Sissors	7:da1f3328a496	4058	FIL* fil, /* Pointer to the file object */
Sissors	7:da1f3328a496	4059	const TCHAR* str, /* Pointer to the format string */
Sissors	7:da1f3328a496	4060	... /* Optional arguments... */
Sissors	7:da1f3328a496	4061	)
Sissors	7:da1f3328a496	4062	{
Sissors	7:da1f3328a496	4063	va_list arp;
Sissors	7:da1f3328a496	4064	BYTE f, r;
Sissors	7:da1f3328a496	4065	UINT i, j, w;
Sissors	7:da1f3328a496	4066	ULONG v;
Sissors	7:da1f3328a496	4067	TCHAR c, d, s[16], *p;
Sissors	7:da1f3328a496	4068	int res, chc, cc;
Sissors	7:da1f3328a496	4069
Sissors	7:da1f3328a496	4070
Sissors	7:da1f3328a496	4071	va_start(arp, str);
Sissors	7:da1f3328a496	4072
Sissors	7:da1f3328a496	4073	for (cc = res = 0; cc != EOF; res += cc) {
Sissors	7:da1f3328a496	4074	c = *str++;
Sissors	7:da1f3328a496	4075	if (c == 0) break; /* End of string */
Sissors	7:da1f3328a496	4076	if (c != '%') { /* Non escape character */
Sissors	7:da1f3328a496	4077	cc = f_putc(c, fil);
Sissors	7:da1f3328a496	4078	if (cc != EOF) cc = 1;
Sissors	7:da1f3328a496	4079	continue;
Sissors	7:da1f3328a496	4080	}
Sissors	7:da1f3328a496	4081	w = f = 0;
Sissors	7:da1f3328a496	4082	c = *str++;
Sissors	7:da1f3328a496	4083	if (c == '0') { /* Flag: '0' padding */
Sissors	7:da1f3328a496	4084	f = 1; c = *str++;
Sissors	7:da1f3328a496	4085	} else {
Sissors	7:da1f3328a496	4086	if (c == '-') { /* Flag: left justified */
Sissors	7:da1f3328a496	4087	f = 2; c = *str++;
Sissors	7:da1f3328a496	4088	}
Sissors	7:da1f3328a496	4089	}
Sissors	7:da1f3328a496	4090	while (IsDigit(c)) { /* Precision */
Sissors	7:da1f3328a496	4091	w = w * 10 + c - '0';
Sissors	7:da1f3328a496	4092	c = *str++;
Sissors	7:da1f3328a496	4093	}
Sissors	7:da1f3328a496	4094	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
Sissors	7:da1f3328a496	4095	f \|= 4; c = *str++;
Sissors	7:da1f3328a496	4096	}
Sissors	7:da1f3328a496	4097	if (!c) break;
Sissors	7:da1f3328a496	4098	d = c;
Sissors	7:da1f3328a496	4099	if (IsLower(d)) d -= 0x20;
Sissors	7:da1f3328a496	4100	switch (d) { /* Type is... */
Sissors	7:da1f3328a496	4101	case 'S' : /* String */
Sissors	7:da1f3328a496	4102	p = va_arg(arp, TCHAR*);
Sissors	7:da1f3328a496	4103	for (j = 0; p[j]; j++) ;
Sissors	7:da1f3328a496	4104	chc = 0;
Sissors	7:da1f3328a496	4105	if (!(f & 2)) {
Sissors	7:da1f3328a496	4106	while (j++ < w) chc += (cc = f_putc(' ', fil));
Sissors	7:da1f3328a496	4107	}
Sissors	7:da1f3328a496	4108	chc += (cc = f_puts(p, fil));
Sissors	7:da1f3328a496	4109	while (j++ < w) chc += (cc = f_putc(' ', fil));
Sissors	7:da1f3328a496	4110	if (cc != EOF) cc = chc;
Sissors	7:da1f3328a496	4111	continue;
Sissors	7:da1f3328a496	4112	case 'C' : /* Character */
Sissors	7:da1f3328a496	4113	cc = f_putc((TCHAR)va_arg(arp, int), fil); continue;
Sissors	7:da1f3328a496	4114	case 'B' : /* Binary */
Sissors	7:da1f3328a496	4115	r = 2; break;
Sissors	7:da1f3328a496	4116	case 'O' : /* Octal */
Sissors	7:da1f3328a496	4117	r = 8; break;
Sissors	7:da1f3328a496	4118	case 'D' : /* Signed decimal */
Sissors	7:da1f3328a496	4119	case 'U' : /* Unsigned decimal */
Sissors	7:da1f3328a496	4120	r = 10; break;
Sissors	7:da1f3328a496	4121	case 'X' : /* Hexdecimal */
Sissors	7:da1f3328a496	4122	r = 16; break;
Sissors	7:da1f3328a496	4123	default: /* Unknown type (pass-through) */
Sissors	7:da1f3328a496	4124	cc = f_putc(c, fil); continue;
Sissors	7:da1f3328a496	4125	}
Sissors	7:da1f3328a496	4126
Sissors	7:da1f3328a496	4127	/* Get an argument and put it in numeral */
Sissors	7:da1f3328a496	4128	v = (f & 4) ? (ULONG)va_arg(arp, long) : ((d == 'D') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int));
Sissors	7:da1f3328a496	4129	if (d == 'D' && (v & 0x80000000)) {
Sissors	7:da1f3328a496	4130	v = 0 - v;
Sissors	7:da1f3328a496	4131	f \|= 8;
Sissors	7:da1f3328a496	4132	}
Sissors	7:da1f3328a496	4133	i = 0;
Sissors	7:da1f3328a496	4134	do {
Sissors	7:da1f3328a496	4135	d = (TCHAR)(v % r); v /= r;
Sissors	7:da1f3328a496	4136	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
Sissors	7:da1f3328a496	4137	s[i++] = d + '0';
Sissors	7:da1f3328a496	4138	} while (v && i < sizeof s / sizeof s[0]);
Sissors	7:da1f3328a496	4139	if (f & 8) s[i++] = '-';
Sissors	7:da1f3328a496	4140	j = i; d = (f & 1) ? '0' : ' ';
Sissors	7:da1f3328a496	4141	res = 0;
Sissors	7:da1f3328a496	4142	while (!(f & 2) && j++ < w) res += (cc = f_putc(d, fil));
Sissors	7:da1f3328a496	4143	do res += (cc = f_putc(s[--i], fil)); while(i);
Sissors	7:da1f3328a496	4144	while (j++ < w) res += (cc = f_putc(' ', fil));
Sissors	7:da1f3328a496	4145	if (cc != EOF) cc = res;
Sissors	7:da1f3328a496	4146	}
Sissors	7:da1f3328a496	4147
Sissors	7:da1f3328a496	4148	va_end(arp);
Sissors	7:da1f3328a496	4149	return (cc == EOF) ? cc : res;
Sissors	7:da1f3328a496	4150	}
Sissors	7:da1f3328a496	4151
Sissors	7:da1f3328a496	4152	#endif /* !_FS_READONLY */
Sissors	7:da1f3328a496	4153	#endif /* _USE_STRFUNC */

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Type:	Library
Created:	21 Apr 2015
Imports:	1
Forks:	0
Commits:	10
Dependents:	1
Dependencies:	0
Followers:	1

The code in this repository is Apache licensed.

FATFileSystem/ChaN/ff.cpp@9:98a97b7d56a8, 2015-04-21 (annotated)

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