JBB_WavePlayer_test - microSDカードからWaveファイルを再生するサンプルです。

Jksoft Blue mbed Board Developer » Code » JBB_WavePlayer_test

Jksoft Blue mbed Board Developer / Mbed 2 deprecated JBB_WavePlayer_test

microSDカードからWaveファイルを再生するサンプルです。

SDFileSystem/FATFileSystem/ChaN/ff.cpp@0:e9f196d85a46, 2014-05-12 (annotated)

Committer:: jksoft
Date:: Mon May 12 14:45:42 2014 +0000
Revision:: 0:e9f196d85a46

First edition

Who changed what in which revision?

User	Revision	Line number	New contents of line
jksoft	0:e9f196d85a46	1	/*----------------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2	/ FatFs - FAT file system module R0.09a (C)ChaN, 2012
jksoft	0:e9f196d85a46	3	/-----------------------------------------------------------------------------/
jksoft	0:e9f196d85a46	4	/ FatFs module is a generic FAT file system module for small embedded systems.
jksoft	0:e9f196d85a46	5	/ This is a free software that opened for education, research and commercial
jksoft	0:e9f196d85a46	6	/ developments under license policy of following terms.
jksoft	0:e9f196d85a46	7	/
jksoft	0:e9f196d85a46	8	/ Copyright (C) 2012, ChaN, all right reserved.
jksoft	0:e9f196d85a46	9	/
jksoft	0:e9f196d85a46	10	/ * The FatFs module is a free software and there is NO WARRANTY.
jksoft	0:e9f196d85a46	11	/ * No restriction on use. You can use, modify and redistribute it for
jksoft	0:e9f196d85a46	12	/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
jksoft	0:e9f196d85a46	13	/ * Redistributions of source code must retain the above copyright notice.
jksoft	0:e9f196d85a46	14	/
jksoft	0:e9f196d85a46	15	/-----------------------------------------------------------------------------/
jksoft	0:e9f196d85a46	16	/ Feb 26,'06 R0.00 Prototype.
jksoft	0:e9f196d85a46	17	/
jksoft	0:e9f196d85a46	18	/ Apr 29,'06 R0.01 First stable version.
jksoft	0:e9f196d85a46	19	/
jksoft	0:e9f196d85a46	20	/ Jun 01,'06 R0.02 Added FAT12 support.
jksoft	0:e9f196d85a46	21	/ Removed unbuffered mode.
jksoft	0:e9f196d85a46	22	/ Fixed a problem on small (<32M) partition.
jksoft	0:e9f196d85a46	23	/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
jksoft	0:e9f196d85a46	24	/
jksoft	0:e9f196d85a46	25	/ Sep 22,'06 R0.03 Added f_rename().
jksoft	0:e9f196d85a46	26	/ Changed option _FS_MINIMUM to _FS_MINIMIZE.
jksoft	0:e9f196d85a46	27	/ Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
jksoft	0:e9f196d85a46	28	/ Fixed f_mkdir() creates incorrect directory on FAT32.
jksoft	0:e9f196d85a46	29	/
jksoft	0:e9f196d85a46	30	/ Feb 04,'07 R0.04 Supported multiple drive system.
jksoft	0:e9f196d85a46	31	/ Changed some interfaces for multiple drive system.
jksoft	0:e9f196d85a46	32	/ Changed f_mountdrv() to f_mount().
jksoft	0:e9f196d85a46	33	/ Added f_mkfs().
jksoft	0:e9f196d85a46	34	/ Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
jksoft	0:e9f196d85a46	35	/ Added a capability of extending file size to f_lseek().
jksoft	0:e9f196d85a46	36	/ Added minimization level 3.
jksoft	0:e9f196d85a46	37	/ Fixed an endian sensitive code in f_mkfs().
jksoft	0:e9f196d85a46	38	/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
jksoft	0:e9f196d85a46	39	/ Added FSInfo support.
jksoft	0:e9f196d85a46	40	/ Fixed DBCS name can result FR_INVALID_NAME.
jksoft	0:e9f196d85a46	41	/ Fixed short seek (<= csize) collapses the file object.
jksoft	0:e9f196d85a46	42	/
jksoft	0:e9f196d85a46	43	/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
jksoft	0:e9f196d85a46	44	/ Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
jksoft	0:e9f196d85a46	45	/ Fixed f_mkdir() on FAT32 creates incorrect directory.
jksoft	0:e9f196d85a46	46	/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
jksoft	0:e9f196d85a46	47	/ Fixed off by one error at FAT sub-type determination.
jksoft	0:e9f196d85a46	48	/ Fixed btr in f_read() can be mistruncated.
jksoft	0:e9f196d85a46	49	/ Fixed cached sector is not flushed when create and close without write.
jksoft	0:e9f196d85a46	50	/
jksoft	0:e9f196d85a46	51	/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
jksoft	0:e9f196d85a46	52	/ Improved performance of f_lseek() on moving to the same or following cluster.
jksoft	0:e9f196d85a46	53	/
jksoft	0:e9f196d85a46	54	/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
jksoft	0:e9f196d85a46	55	/ Added long file name feature.
jksoft	0:e9f196d85a46	56	/ Added multiple code page feature.
jksoft	0:e9f196d85a46	57	/ Added re-entrancy for multitask operation.
jksoft	0:e9f196d85a46	58	/ Added auto cluster size selection to f_mkfs().
jksoft	0:e9f196d85a46	59	/ Added rewind option to f_readdir().
jksoft	0:e9f196d85a46	60	/ Changed result code of critical errors.
jksoft	0:e9f196d85a46	61	/ Renamed string functions to avoid name collision.
jksoft	0:e9f196d85a46	62	/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
jksoft	0:e9f196d85a46	63	/ Added multiple sector size feature.
jksoft	0:e9f196d85a46	64	/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
jksoft	0:e9f196d85a46	65	/ Fixed wrong cache control in f_lseek().
jksoft	0:e9f196d85a46	66	/ Added relative path feature.
jksoft	0:e9f196d85a46	67	/ Added f_chdir() and f_chdrive().
jksoft	0:e9f196d85a46	68	/ Added proper case conversion to extended char.
jksoft	0:e9f196d85a46	69	/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
jksoft	0:e9f196d85a46	70	/ Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
jksoft	0:e9f196d85a46	71	/ Fixed name matching error on the 13 char boundary.
jksoft	0:e9f196d85a46	72	/ Added a configuration option, _LFN_UNICODE.
jksoft	0:e9f196d85a46	73	/ Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
jksoft	0:e9f196d85a46	74	/
jksoft	0:e9f196d85a46	75	/ May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
jksoft	0:e9f196d85a46	76	/ Added file lock feature. (_FS_SHARE)
jksoft	0:e9f196d85a46	77	/ Added fast seek feature. (_USE_FASTSEEK)
jksoft	0:e9f196d85a46	78	/ Changed some types on the API, XCHAR->TCHAR.
jksoft	0:e9f196d85a46	79	/ Changed fname member in the FILINFO structure on Unicode cfg.
jksoft	0:e9f196d85a46	80	/ String functions support UTF-8 encoding files on Unicode cfg.
jksoft	0:e9f196d85a46	81	/ Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
jksoft	0:e9f196d85a46	82	/ Added sector erase feature. (_USE_ERASE)
jksoft	0:e9f196d85a46	83	/ Moved file lock semaphore table from fs object to the bss.
jksoft	0:e9f196d85a46	84	/ Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
jksoft	0:e9f196d85a46	85	/ Fixed f_mkfs() creates wrong FAT32 volume.
jksoft	0:e9f196d85a46	86	/ Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
jksoft	0:e9f196d85a46	87	/ f_lseek() reports required table size on creating CLMP.
jksoft	0:e9f196d85a46	88	/ Extended format syntax of f_printf function.
jksoft	0:e9f196d85a46	89	/ Ignores duplicated directory separators in given path name.
jksoft	0:e9f196d85a46	90	/
jksoft	0:e9f196d85a46	91	/ Sep 06,'11 R0.09 f_mkfs() supports multiple partition to finish the multiple partition feature.
jksoft	0:e9f196d85a46	92	/ Added f_fdisk(). (_MULTI_PARTITION = 2)
jksoft	0:e9f196d85a46	93	/ Aug 27,'12 R0.09a Fixed assertion failure due to OS/2 EA on FAT12/16 volume.
jksoft	0:e9f196d85a46	94	/ Changed f_open() and f_opendir reject null object pointer to avoid crash.
jksoft	0:e9f196d85a46	95	/ Changed option name _FS_SHARE to _FS_LOCK.
jksoft	0:e9f196d85a46	96	/---------------------------------------------------------------------------*/
jksoft	0:e9f196d85a46	97
jksoft	0:e9f196d85a46	98	#include "ff.h" /* FatFs configurations and declarations */
jksoft	0:e9f196d85a46	99	#include "diskio.h" /* Declarations of low level disk I/O functions */
jksoft	0:e9f196d85a46	100
jksoft	0:e9f196d85a46	101
jksoft	0:e9f196d85a46	102	/*--------------------------------------------------------------------------
jksoft	0:e9f196d85a46	103
jksoft	0:e9f196d85a46	104	Module Private Definitions
jksoft	0:e9f196d85a46	105
jksoft	0:e9f196d85a46	106	---------------------------------------------------------------------------*/
jksoft	0:e9f196d85a46	107
jksoft	0:e9f196d85a46	108	#if _FATFS != 4004 /* Revision ID */
jksoft	0:e9f196d85a46	109	#error Wrong include file (ff.h).
jksoft	0:e9f196d85a46	110	#endif
jksoft	0:e9f196d85a46	111
jksoft	0:e9f196d85a46	112
jksoft	0:e9f196d85a46	113	/* Definitions on sector size */
jksoft	0:e9f196d85a46	114	#if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
jksoft	0:e9f196d85a46	115	#error Wrong sector size.
jksoft	0:e9f196d85a46	116	#endif
jksoft	0:e9f196d85a46	117	#if _MAX_SS != 512
jksoft	0:e9f196d85a46	118	#define SS(fs) ((fs)->ssize) /* Variable sector size */
jksoft	0:e9f196d85a46	119	#else
jksoft	0:e9f196d85a46	120	#define SS(fs) 512U /* Fixed sector size */
jksoft	0:e9f196d85a46	121	#endif
jksoft	0:e9f196d85a46	122
jksoft	0:e9f196d85a46	123
jksoft	0:e9f196d85a46	124	/* Reentrancy related */
jksoft	0:e9f196d85a46	125	#if _FS_REENTRANT
jksoft	0:e9f196d85a46	126	#if _USE_LFN == 1
jksoft	0:e9f196d85a46	127	#error Static LFN work area must not be used in re-entrant configuration.
jksoft	0:e9f196d85a46	128	#endif
jksoft	0:e9f196d85a46	129	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
jksoft	0:e9f196d85a46	130	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
jksoft	0:e9f196d85a46	131	#else
jksoft	0:e9f196d85a46	132	#define ENTER_FF(fs)
jksoft	0:e9f196d85a46	133	#define LEAVE_FF(fs, res) return res
jksoft	0:e9f196d85a46	134	#endif
jksoft	0:e9f196d85a46	135
jksoft	0:e9f196d85a46	136	#define ABORT(fs, res) { fp->flag \|= FA__ERROR; LEAVE_FF(fs, res); }
jksoft	0:e9f196d85a46	137
jksoft	0:e9f196d85a46	138
jksoft	0:e9f196d85a46	139	/* File access control feature */
jksoft	0:e9f196d85a46	140	#if _FS_LOCK
jksoft	0:e9f196d85a46	141	#if _FS_READONLY
jksoft	0:e9f196d85a46	142	#error _FS_LOCK must be 0 on read-only cfg.
jksoft	0:e9f196d85a46	143	#endif
jksoft	0:e9f196d85a46	144	typedef struct {
jksoft	0:e9f196d85a46	145	FATFS fs; / File ID 1, volume (NULL:blank entry) */
jksoft	0:e9f196d85a46	146	DWORD clu; /* File ID 2, directory */
jksoft	0:e9f196d85a46	147	WORD idx; /* File ID 3, directory index */
jksoft	0:e9f196d85a46	148	WORD ctr; /* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:write mode */
jksoft	0:e9f196d85a46	149	} FILESEM;
jksoft	0:e9f196d85a46	150	#endif
jksoft	0:e9f196d85a46	151
jksoft	0:e9f196d85a46	152
jksoft	0:e9f196d85a46	153
jksoft	0:e9f196d85a46	154	/* DBCS code ranges and SBCS extend char conversion table */
jksoft	0:e9f196d85a46	155
jksoft	0:e9f196d85a46	156	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
jksoft	0:e9f196d85a46	157	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
jksoft	0:e9f196d85a46	158	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
jksoft	0:e9f196d85a46	159	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
jksoft	0:e9f196d85a46	160	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
jksoft	0:e9f196d85a46	161	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
jksoft	0:e9f196d85a46	162	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
jksoft	0:e9f196d85a46	163	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
jksoft	0:e9f196d85a46	164	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
jksoft	0:e9f196d85a46	165
jksoft	0:e9f196d85a46	166	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
jksoft	0:e9f196d85a46	167	#define _DF1S 0x81
jksoft	0:e9f196d85a46	168	#define _DF1E 0xFE
jksoft	0:e9f196d85a46	169	#define _DS1S 0x40
jksoft	0:e9f196d85a46	170	#define _DS1E 0x7E
jksoft	0:e9f196d85a46	171	#define _DS2S 0x80
jksoft	0:e9f196d85a46	172	#define _DS2E 0xFE
jksoft	0:e9f196d85a46	173
jksoft	0:e9f196d85a46	174	#elif _CODE_PAGE == 949 /* Korean */
jksoft	0:e9f196d85a46	175	#define _DF1S 0x81
jksoft	0:e9f196d85a46	176	#define _DF1E 0xFE
jksoft	0:e9f196d85a46	177	#define _DS1S 0x41
jksoft	0:e9f196d85a46	178	#define _DS1E 0x5A
jksoft	0:e9f196d85a46	179	#define _DS2S 0x61
jksoft	0:e9f196d85a46	180	#define _DS2E 0x7A
jksoft	0:e9f196d85a46	181	#define _DS3S 0x81
jksoft	0:e9f196d85a46	182	#define _DS3E 0xFE
jksoft	0:e9f196d85a46	183
jksoft	0:e9f196d85a46	184	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
jksoft	0:e9f196d85a46	185	#define _DF1S 0x81
jksoft	0:e9f196d85a46	186	#define _DF1E 0xFE
jksoft	0:e9f196d85a46	187	#define _DS1S 0x40
jksoft	0:e9f196d85a46	188	#define _DS1E 0x7E
jksoft	0:e9f196d85a46	189	#define _DS2S 0xA1
jksoft	0:e9f196d85a46	190	#define _DS2E 0xFE
jksoft	0:e9f196d85a46	191
jksoft	0:e9f196d85a46	192	#elif _CODE_PAGE == 437 /* U.S. (OEM) */
jksoft	0:e9f196d85a46	193	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	198
jksoft	0:e9f196d85a46	199	#elif _CODE_PAGE == 720 /* Arabic (OEM) */
jksoft	0:e9f196d85a46	200	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	205
jksoft	0:e9f196d85a46	206	#elif _CODE_PAGE == 737 /* Greek (OEM) */
jksoft	0:e9f196d85a46	207	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	212
jksoft	0:e9f196d85a46	213	#elif _CODE_PAGE == 775 /* Baltic (OEM) */
jksoft	0:e9f196d85a46	214	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	219
jksoft	0:e9f196d85a46	220	#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
jksoft	0:e9f196d85a46	221	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	226
jksoft	0:e9f196d85a46	227	#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
jksoft	0:e9f196d85a46	228	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	233
jksoft	0:e9f196d85a46	234	#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
jksoft	0:e9f196d85a46	235	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	240
jksoft	0:e9f196d85a46	241	#elif _CODE_PAGE == 857 /* Turkish (OEM) */
jksoft	0:e9f196d85a46	242	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	247
jksoft	0:e9f196d85a46	248	#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
jksoft	0:e9f196d85a46	249	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	254
jksoft	0:e9f196d85a46	255	#elif _CODE_PAGE == 862 /* Hebrew (OEM) */
jksoft	0:e9f196d85a46	256	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	261
jksoft	0:e9f196d85a46	262	#elif _CODE_PAGE == 866 /* Russian (OEM) */
jksoft	0:e9f196d85a46	263	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	268
jksoft	0:e9f196d85a46	269	#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
jksoft	0:e9f196d85a46	270	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	275
jksoft	0:e9f196d85a46	276	#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
jksoft	0:e9f196d85a46	277	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	282
jksoft	0:e9f196d85a46	283	#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
jksoft	0:e9f196d85a46	284	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	289
jksoft	0:e9f196d85a46	290	#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
jksoft	0:e9f196d85a46	291	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	296
jksoft	0:e9f196d85a46	297	#elif _CODE_PAGE == 1253 /* Greek (Windows) */
jksoft	0:e9f196d85a46	298	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	303
jksoft	0:e9f196d85a46	304	#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
jksoft	0:e9f196d85a46	305	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	310
jksoft	0:e9f196d85a46	311	#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
jksoft	0:e9f196d85a46	312	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	317
jksoft	0:e9f196d85a46	318	#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
jksoft	0:e9f196d85a46	319	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	324
jksoft	0:e9f196d85a46	325	#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
jksoft	0:e9f196d85a46	326	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	331
jksoft	0:e9f196d85a46	332	#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
jksoft	0:e9f196d85a46	333	#define _DF1S 0
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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, \
jksoft	0:e9f196d85a46	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}
jksoft	0:e9f196d85a46	338
jksoft	0:e9f196d85a46	339	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
jksoft	0:e9f196d85a46	340	#if _USE_LFN
jksoft	0:e9f196d85a46	341	#error Cannot use LFN feature without valid code page.
jksoft	0:e9f196d85a46	342	#endif
jksoft	0:e9f196d85a46	343	#define _DF1S 0
jksoft	0:e9f196d85a46	344
jksoft	0:e9f196d85a46	345	#else
jksoft	0:e9f196d85a46	346	#error Unknown code page
jksoft	0:e9f196d85a46	347
jksoft	0:e9f196d85a46	348	#endif
jksoft	0:e9f196d85a46	349
jksoft	0:e9f196d85a46	350
jksoft	0:e9f196d85a46	351	/* Character code support macros */
jksoft	0:e9f196d85a46	352	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
jksoft	0:e9f196d85a46	353	#define IsLower(c) (((c)>='a')&&((c)<='z'))
jksoft	0:e9f196d85a46	354	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
jksoft	0:e9f196d85a46	355
jksoft	0:e9f196d85a46	356	#if _DF1S /* Code page is DBCS */
jksoft	0:e9f196d85a46	357
jksoft	0:e9f196d85a46	358	#ifdef _DF2S /* Two 1st byte areas */
jksoft	0:e9f196d85a46	359	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
jksoft	0:e9f196d85a46	360	#else /* One 1st byte area */
jksoft	0:e9f196d85a46	361	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
jksoft	0:e9f196d85a46	362	#endif
jksoft	0:e9f196d85a46	363
jksoft	0:e9f196d85a46	364	#ifdef _DS3S /* Three 2nd byte areas */
jksoft	0:e9f196d85a46	365	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
jksoft	0:e9f196d85a46	366	#else /* Two 2nd byte areas */
jksoft	0:e9f196d85a46	367	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
jksoft	0:e9f196d85a46	368	#endif
jksoft	0:e9f196d85a46	369
jksoft	0:e9f196d85a46	370	#else /* Code page is SBCS */
jksoft	0:e9f196d85a46	371
jksoft	0:e9f196d85a46	372	#define IsDBCS1(c) 0
jksoft	0:e9f196d85a46	373	#define IsDBCS2(c) 0
jksoft	0:e9f196d85a46	374
jksoft	0:e9f196d85a46	375	#endif /* _DF1S */
jksoft	0:e9f196d85a46	376
jksoft	0:e9f196d85a46	377
jksoft	0:e9f196d85a46	378	/* Name status flags */
jksoft	0:e9f196d85a46	379	#define NS 11 /* Index of name status byte in fn[] */
jksoft	0:e9f196d85a46	380	#define NS_LOSS 0x01 /* Out of 8.3 format */
jksoft	0:e9f196d85a46	381	#define NS_LFN 0x02 /* Force to create LFN entry */
jksoft	0:e9f196d85a46	382	#define NS_LAST 0x04 /* Last segment */
jksoft	0:e9f196d85a46	383	#define NS_BODY 0x08 /* Lower case flag (body) */
jksoft	0:e9f196d85a46	384	#define NS_EXT 0x10 /* Lower case flag (ext) */
jksoft	0:e9f196d85a46	385	#define NS_DOT 0x20 /* Dot entry */
jksoft	0:e9f196d85a46	386
jksoft	0:e9f196d85a46	387
jksoft	0:e9f196d85a46	388	/* FAT sub-type boundaries */
jksoft	0:e9f196d85a46	389	/* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */
jksoft	0:e9f196d85a46	390	#define MIN_FAT16 4086 /* Minimum number of clusters for FAT16 */
jksoft	0:e9f196d85a46	391	#define MIN_FAT32 65526 /* Minimum number of clusters for FAT32 */
jksoft	0:e9f196d85a46	392
jksoft	0:e9f196d85a46	393
jksoft	0:e9f196d85a46	394	/* FatFs refers the members in the FAT structures as byte array instead of
jksoft	0:e9f196d85a46	395	/ structure member because the structure is not binary compatible between
jksoft	0:e9f196d85a46	396	/ different platforms */
jksoft	0:e9f196d85a46	397
jksoft	0:e9f196d85a46	398	#define BS_jmpBoot 0 /* Jump instruction (3) */
jksoft	0:e9f196d85a46	399	#define BS_OEMName 3 /* OEM name (8) */
jksoft	0:e9f196d85a46	400	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
jksoft	0:e9f196d85a46	401	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
jksoft	0:e9f196d85a46	402	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
jksoft	0:e9f196d85a46	403	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
jksoft	0:e9f196d85a46	404	#define BPB_RootEntCnt 17 /* Number of root dir entries for FAT12/16 (2) */
jksoft	0:e9f196d85a46	405	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
jksoft	0:e9f196d85a46	406	#define BPB_Media 21 /* Media descriptor (1) */
jksoft	0:e9f196d85a46	407	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
jksoft	0:e9f196d85a46	408	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
jksoft	0:e9f196d85a46	409	#define BPB_NumHeads 26 /* Number of heads (2) */
jksoft	0:e9f196d85a46	410	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
jksoft	0:e9f196d85a46	411	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
jksoft	0:e9f196d85a46	412	#define BS_DrvNum 36 /* Physical drive number (2) */
jksoft	0:e9f196d85a46	413	#define BS_BootSig 38 /* Extended boot signature (1) */
jksoft	0:e9f196d85a46	414	#define BS_VolID 39 /* Volume serial number (4) */
jksoft	0:e9f196d85a46	415	#define BS_VolLab 43 /* Volume label (8) */
jksoft	0:e9f196d85a46	416	#define BS_FilSysType 54 /* File system type (1) */
jksoft	0:e9f196d85a46	417	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
jksoft	0:e9f196d85a46	418	#define BPB_ExtFlags 40 /* Extended flags (2) */
jksoft	0:e9f196d85a46	419	#define BPB_FSVer 42 /* File system version (2) */
jksoft	0:e9f196d85a46	420	#define BPB_RootClus 44 /* Root dir first cluster (4) */
jksoft	0:e9f196d85a46	421	#define BPB_FSInfo 48 /* Offset of FSInfo sector (2) */
jksoft	0:e9f196d85a46	422	#define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
jksoft	0:e9f196d85a46	423	#define BS_DrvNum32 64 /* Physical drive number (2) */
jksoft	0:e9f196d85a46	424	#define BS_BootSig32 66 /* Extended boot signature (1) */
jksoft	0:e9f196d85a46	425	#define BS_VolID32 67 /* Volume serial number (4) */
jksoft	0:e9f196d85a46	426	#define BS_VolLab32 71 /* Volume label (8) */
jksoft	0:e9f196d85a46	427	#define BS_FilSysType32 82 /* File system type (1) */
jksoft	0:e9f196d85a46	428	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
jksoft	0:e9f196d85a46	429	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
jksoft	0:e9f196d85a46	430	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
jksoft	0:e9f196d85a46	431	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
jksoft	0:e9f196d85a46	432	#define MBR_Table 446 /* MBR: Partition table offset (2) */
jksoft	0:e9f196d85a46	433	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
jksoft	0:e9f196d85a46	434	#define BS_55AA 510 /* Boot sector signature (2) */
jksoft	0:e9f196d85a46	435
jksoft	0:e9f196d85a46	436	#define DIR_Name 0 /* Short file name (11) */
jksoft	0:e9f196d85a46	437	#define DIR_Attr 11 /* Attribute (1) */
jksoft	0:e9f196d85a46	438	#define DIR_NTres 12 /* NT flag (1) */
jksoft	0:e9f196d85a46	439	#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
jksoft	0:e9f196d85a46	440	#define DIR_CrtTime 14 /* Created time (2) */
jksoft	0:e9f196d85a46	441	#define DIR_CrtDate 16 /* Created date (2) */
jksoft	0:e9f196d85a46	442	#define DIR_LstAccDate 18 /* Last accessed date (2) */
jksoft	0:e9f196d85a46	443	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
jksoft	0:e9f196d85a46	444	#define DIR_WrtTime 22 /* Modified time (2) */
jksoft	0:e9f196d85a46	445	#define DIR_WrtDate 24 /* Modified date (2) */
jksoft	0:e9f196d85a46	446	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
jksoft	0:e9f196d85a46	447	#define DIR_FileSize 28 /* File size (4) */
jksoft	0:e9f196d85a46	448	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
jksoft	0:e9f196d85a46	449	#define LDIR_Attr 11 /* LFN attribute (1) */
jksoft	0:e9f196d85a46	450	#define LDIR_Type 12 /* LFN type (1) */
jksoft	0:e9f196d85a46	451	#define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
jksoft	0:e9f196d85a46	452	#define LDIR_FstClusLO 26 /* Filled by zero (0) */
jksoft	0:e9f196d85a46	453	#define SZ_DIR 32 /* Size of a directory entry */
jksoft	0:e9f196d85a46	454	#define LLE 0x40 /* Last long entry flag in LDIR_Ord */
jksoft	0:e9f196d85a46	455	#define DDE 0xE5 /* Deleted directory entry mark in DIR_Name[0] */
jksoft	0:e9f196d85a46	456	#define NDDE 0x05 /* Replacement of the character collides with DDE */
jksoft	0:e9f196d85a46	457
jksoft	0:e9f196d85a46	458
jksoft	0:e9f196d85a46	459	/------------------------------------------------------------/
jksoft	0:e9f196d85a46	460	/* Module private work area */
jksoft	0:e9f196d85a46	461	/------------------------------------------------------------/
jksoft	0:e9f196d85a46	462	/* Note that uninitialized variables with static duration are
jksoft	0:e9f196d85a46	463	/ zeroed/nulled at start-up. If not, the compiler or start-up
jksoft	0:e9f196d85a46	464	/ routine is out of ANSI-C standard.
jksoft	0:e9f196d85a46	465	*/
jksoft	0:e9f196d85a46	466
jksoft	0:e9f196d85a46	467	#if _VOLUMES
jksoft	0:e9f196d85a46	468	static
jksoft	0:e9f196d85a46	469	FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
jksoft	0:e9f196d85a46	470	#else
jksoft	0:e9f196d85a46	471	#error Number of volumes must not be 0.
jksoft	0:e9f196d85a46	472	#endif
jksoft	0:e9f196d85a46	473
jksoft	0:e9f196d85a46	474	static
jksoft	0:e9f196d85a46	475	WORD Fsid; /* File system mount ID */
jksoft	0:e9f196d85a46	476
jksoft	0:e9f196d85a46	477	#if _FS_RPATH
jksoft	0:e9f196d85a46	478	static
jksoft	0:e9f196d85a46	479	BYTE CurrVol; /* Current drive */
jksoft	0:e9f196d85a46	480	#endif
jksoft	0:e9f196d85a46	481
jksoft	0:e9f196d85a46	482	#if _FS_LOCK
jksoft	0:e9f196d85a46	483	static
jksoft	0:e9f196d85a46	484	FILESEM Files[_FS_LOCK]; /* File lock semaphores */
jksoft	0:e9f196d85a46	485	#endif
jksoft	0:e9f196d85a46	486
jksoft	0:e9f196d85a46	487	#if _USE_LFN == 0 /* No LFN feature */
jksoft	0:e9f196d85a46	488	#define DEF_NAMEBUF BYTE sfn[12]
jksoft	0:e9f196d85a46	489	#define INIT_BUF(dobj) (dobj).fn = sfn
jksoft	0:e9f196d85a46	490	#define FREE_BUF()
jksoft	0:e9f196d85a46	491
jksoft	0:e9f196d85a46	492	#elif _USE_LFN == 1 /* LFN feature with static working buffer */
jksoft	0:e9f196d85a46	493	static WCHAR LfnBuf[_MAX_LFN+1];
jksoft	0:e9f196d85a46	494	#define DEF_NAMEBUF BYTE sfn[12]
jksoft	0:e9f196d85a46	495	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
jksoft	0:e9f196d85a46	496	#define FREE_BUF()
jksoft	0:e9f196d85a46	497
jksoft	0:e9f196d85a46	498	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
jksoft	0:e9f196d85a46	499	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
jksoft	0:e9f196d85a46	500	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
jksoft	0:e9f196d85a46	501	#define FREE_BUF()
jksoft	0:e9f196d85a46	502
jksoft	0:e9f196d85a46	503	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
jksoft	0:e9f196d85a46	504	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
jksoft	0:e9f196d85a46	505	#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
jksoft	0:e9f196d85a46	506	if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
jksoft	0:e9f196d85a46	507	(dobj).lfn = lfn; (dobj).fn = sfn; }
jksoft	0:e9f196d85a46	508	#define FREE_BUF() ff_memfree(lfn)
jksoft	0:e9f196d85a46	509
jksoft	0:e9f196d85a46	510	#else
jksoft	0:e9f196d85a46	511	#error Wrong LFN configuration.
jksoft	0:e9f196d85a46	512	#endif
jksoft	0:e9f196d85a46	513
jksoft	0:e9f196d85a46	514
jksoft	0:e9f196d85a46	515
jksoft	0:e9f196d85a46	516
jksoft	0:e9f196d85a46	517	/*--------------------------------------------------------------------------
jksoft	0:e9f196d85a46	518
jksoft	0:e9f196d85a46	519	Module Private Functions
jksoft	0:e9f196d85a46	520
jksoft	0:e9f196d85a46	521	---------------------------------------------------------------------------*/
jksoft	0:e9f196d85a46	522
jksoft	0:e9f196d85a46	523
jksoft	0:e9f196d85a46	524	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	525	/* String functions */
jksoft	0:e9f196d85a46	526	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	527
jksoft	0:e9f196d85a46	528	/* Copy memory to memory */
jksoft	0:e9f196d85a46	529	static
jksoft	0:e9f196d85a46	530	void mem_cpy (void* dst, const void* src, UINT cnt) {
jksoft	0:e9f196d85a46	531	BYTE d = (BYTE)dst;
jksoft	0:e9f196d85a46	532	const BYTE s = (const BYTE)src;
jksoft	0:e9f196d85a46	533
jksoft	0:e9f196d85a46	534	#if _WORD_ACCESS == 1
jksoft	0:e9f196d85a46	535	while (cnt >= sizeof (int)) {
jksoft	0:e9f196d85a46	536	(int)d = (int)s;
jksoft	0:e9f196d85a46	537	d += sizeof (int); s += sizeof (int);
jksoft	0:e9f196d85a46	538	cnt -= sizeof (int);
jksoft	0:e9f196d85a46	539	}
jksoft	0:e9f196d85a46	540	#endif
jksoft	0:e9f196d85a46	541	while (cnt--)
jksoft	0:e9f196d85a46	542	d++ = s++;
jksoft	0:e9f196d85a46	543	}
jksoft	0:e9f196d85a46	544
jksoft	0:e9f196d85a46	545	/* Fill memory */
jksoft	0:e9f196d85a46	546	static
jksoft	0:e9f196d85a46	547	void mem_set (void* dst, int val, UINT cnt) {
jksoft	0:e9f196d85a46	548	BYTE d = (BYTE)dst;
jksoft	0:e9f196d85a46	549
jksoft	0:e9f196d85a46	550	while (cnt--)
jksoft	0:e9f196d85a46	551	*d++ = (BYTE)val;
jksoft	0:e9f196d85a46	552	}
jksoft	0:e9f196d85a46	553
jksoft	0:e9f196d85a46	554	/* Compare memory to memory */
jksoft	0:e9f196d85a46	555	static
jksoft	0:e9f196d85a46	556	int mem_cmp (const void* dst, const void* src, UINT cnt) {
jksoft	0:e9f196d85a46	557	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
jksoft	0:e9f196d85a46	558	int r = 0;
jksoft	0:e9f196d85a46	559
jksoft	0:e9f196d85a46	560	while (cnt-- && (r = d++ - s++) == 0) ;
jksoft	0:e9f196d85a46	561	return r;
jksoft	0:e9f196d85a46	562	}
jksoft	0:e9f196d85a46	563
jksoft	0:e9f196d85a46	564	/* Check if chr is contained in the string */
jksoft	0:e9f196d85a46	565	static
jksoft	0:e9f196d85a46	566	int chk_chr (const char* str, int chr) {
jksoft	0:e9f196d85a46	567	while (str && str != chr) str++;
jksoft	0:e9f196d85a46	568	return *str;
jksoft	0:e9f196d85a46	569	}
jksoft	0:e9f196d85a46	570
jksoft	0:e9f196d85a46	571
jksoft	0:e9f196d85a46	572
jksoft	0:e9f196d85a46	573	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	574	/* Request/Release grant to access the volume */
jksoft	0:e9f196d85a46	575	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	576	#if _FS_REENTRANT
jksoft	0:e9f196d85a46	577
jksoft	0:e9f196d85a46	578	static
jksoft	0:e9f196d85a46	579	int lock_fs (
jksoft	0:e9f196d85a46	580	FATFS fs / File system object */
jksoft	0:e9f196d85a46	581	)
jksoft	0:e9f196d85a46	582	{
jksoft	0:e9f196d85a46	583	return ff_req_grant(fs->sobj);
jksoft	0:e9f196d85a46	584	}
jksoft	0:e9f196d85a46	585
jksoft	0:e9f196d85a46	586
jksoft	0:e9f196d85a46	587	static
jksoft	0:e9f196d85a46	588	void unlock_fs (
jksoft	0:e9f196d85a46	589	FATFS fs, / File system object */
jksoft	0:e9f196d85a46	590	FRESULT res /* Result code to be returned */
jksoft	0:e9f196d85a46	591	)
jksoft	0:e9f196d85a46	592	{
jksoft	0:e9f196d85a46	593	if (fs &&
jksoft	0:e9f196d85a46	594	res != FR_NOT_ENABLED &&
jksoft	0:e9f196d85a46	595	res != FR_INVALID_DRIVE &&
jksoft	0:e9f196d85a46	596	res != FR_INVALID_OBJECT &&
jksoft	0:e9f196d85a46	597	res != FR_TIMEOUT) {
jksoft	0:e9f196d85a46	598	ff_rel_grant(fs->sobj);
jksoft	0:e9f196d85a46	599	}
jksoft	0:e9f196d85a46	600	}
jksoft	0:e9f196d85a46	601	#endif
jksoft	0:e9f196d85a46	602
jksoft	0:e9f196d85a46	603
jksoft	0:e9f196d85a46	604
jksoft	0:e9f196d85a46	605	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	606	/* File lock control functions */
jksoft	0:e9f196d85a46	607	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	608	#if _FS_LOCK
jksoft	0:e9f196d85a46	609
jksoft	0:e9f196d85a46	610	static
jksoft	0:e9f196d85a46	611	FRESULT chk_lock ( /* Check if the file can be accessed */
jksoft	0:e9f196d85a46	612	DIR* dj, /* Directory object pointing the file to be checked */
jksoft	0:e9f196d85a46	613	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
jksoft	0:e9f196d85a46	614	)
jksoft	0:e9f196d85a46	615	{
jksoft	0:e9f196d85a46	616	UINT i, be;
jksoft	0:e9f196d85a46	617
jksoft	0:e9f196d85a46	618	/* Search file semaphore table */
jksoft	0:e9f196d85a46	619	for (i = be = 0; i < _FS_LOCK; i++) {
jksoft	0:e9f196d85a46	620	if (Files[i].fs) { /* Existing entry */
jksoft	0:e9f196d85a46	621	if (Files[i].fs == dj->fs && /* Check if the file matched with an open file */
jksoft	0:e9f196d85a46	622	Files[i].clu == dj->sclust &&
jksoft	0:e9f196d85a46	623	Files[i].idx == dj->index) break;
jksoft	0:e9f196d85a46	624	} else { /* Blank entry */
jksoft	0:e9f196d85a46	625	be++;
jksoft	0:e9f196d85a46	626	}
jksoft	0:e9f196d85a46	627	}
jksoft	0:e9f196d85a46	628	if (i == _FS_LOCK) /* The file is not opened */
jksoft	0:e9f196d85a46	629	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new file? */
jksoft	0:e9f196d85a46	630
jksoft	0:e9f196d85a46	631	/* The file has been opened. Reject any open against writing file and all write mode open */
jksoft	0:e9f196d85a46	632	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
jksoft	0:e9f196d85a46	633	}
jksoft	0:e9f196d85a46	634
jksoft	0:e9f196d85a46	635
jksoft	0:e9f196d85a46	636	static
jksoft	0:e9f196d85a46	637	int enq_lock (void) /* Check if an entry is available for a new file */
jksoft	0:e9f196d85a46	638	{
jksoft	0:e9f196d85a46	639	UINT i;
jksoft	0:e9f196d85a46	640
jksoft	0:e9f196d85a46	641	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
jksoft	0:e9f196d85a46	642	return (i == _FS_LOCK) ? 0 : 1;
jksoft	0:e9f196d85a46	643	}
jksoft	0:e9f196d85a46	644
jksoft	0:e9f196d85a46	645
jksoft	0:e9f196d85a46	646	static
jksoft	0:e9f196d85a46	647	UINT inc_lock ( /* Increment file open counter and returns its index (0:int error) */
jksoft	0:e9f196d85a46	648	DIR* dj, /* Directory object pointing the file to register or increment */
jksoft	0:e9f196d85a46	649	int acc /* Desired access mode (0:Read, !0:Write) */
jksoft	0:e9f196d85a46	650	)
jksoft	0:e9f196d85a46	651	{
jksoft	0:e9f196d85a46	652	UINT i;
jksoft	0:e9f196d85a46	653
jksoft	0:e9f196d85a46	654
jksoft	0:e9f196d85a46	655	for (i = 0; i < _FS_LOCK; i++) { /* Find the file */
jksoft	0:e9f196d85a46	656	if (Files[i].fs == dj->fs &&
jksoft	0:e9f196d85a46	657	Files[i].clu == dj->sclust &&
jksoft	0:e9f196d85a46	658	Files[i].idx == dj->index) break;
jksoft	0:e9f196d85a46	659	}
jksoft	0:e9f196d85a46	660
jksoft	0:e9f196d85a46	661	if (i == _FS_LOCK) { /* Not opened. Register it as new. */
jksoft	0:e9f196d85a46	662	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
jksoft	0:e9f196d85a46	663	if (i == _FS_LOCK) return 0; /* No space to register (int err) */
jksoft	0:e9f196d85a46	664	Files[i].fs = dj->fs;
jksoft	0:e9f196d85a46	665	Files[i].clu = dj->sclust;
jksoft	0:e9f196d85a46	666	Files[i].idx = dj->index;
jksoft	0:e9f196d85a46	667	Files[i].ctr = 0;
jksoft	0:e9f196d85a46	668	}
jksoft	0:e9f196d85a46	669
jksoft	0:e9f196d85a46	670	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
jksoft	0:e9f196d85a46	671
jksoft	0:e9f196d85a46	672	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
jksoft	0:e9f196d85a46	673
jksoft	0:e9f196d85a46	674	return i + 1;
jksoft	0:e9f196d85a46	675	}
jksoft	0:e9f196d85a46	676
jksoft	0:e9f196d85a46	677
jksoft	0:e9f196d85a46	678	static
jksoft	0:e9f196d85a46	679	FRESULT dec_lock ( /* Decrement file open counter */
jksoft	0:e9f196d85a46	680	UINT i /* Semaphore index */
jksoft	0:e9f196d85a46	681	)
jksoft	0:e9f196d85a46	682	{
jksoft	0:e9f196d85a46	683	WORD n;
jksoft	0:e9f196d85a46	684	FRESULT res;
jksoft	0:e9f196d85a46	685
jksoft	0:e9f196d85a46	686
jksoft	0:e9f196d85a46	687	if (--i < _FS_LOCK) {
jksoft	0:e9f196d85a46	688	n = Files[i].ctr;
jksoft	0:e9f196d85a46	689	if (n == 0x100) n = 0;
jksoft	0:e9f196d85a46	690	if (n) n--;
jksoft	0:e9f196d85a46	691	Files[i].ctr = n;
jksoft	0:e9f196d85a46	692	if (!n) Files[i].fs = 0;
jksoft	0:e9f196d85a46	693	res = FR_OK;
jksoft	0:e9f196d85a46	694	} else {
jksoft	0:e9f196d85a46	695	res = FR_INT_ERR;
jksoft	0:e9f196d85a46	696	}
jksoft	0:e9f196d85a46	697	return res;
jksoft	0:e9f196d85a46	698	}
jksoft	0:e9f196d85a46	699
jksoft	0:e9f196d85a46	700
jksoft	0:e9f196d85a46	701	static
jksoft	0:e9f196d85a46	702	void clear_lock ( /* Clear lock entries of the volume */
jksoft	0:e9f196d85a46	703	FATFS *fs
jksoft	0:e9f196d85a46	704	)
jksoft	0:e9f196d85a46	705	{
jksoft	0:e9f196d85a46	706	UINT i;
jksoft	0:e9f196d85a46	707
jksoft	0:e9f196d85a46	708	for (i = 0; i < _FS_LOCK; i++) {
jksoft	0:e9f196d85a46	709	if (Files[i].fs == fs) Files[i].fs = 0;
jksoft	0:e9f196d85a46	710	}
jksoft	0:e9f196d85a46	711	}
jksoft	0:e9f196d85a46	712	#endif
jksoft	0:e9f196d85a46	713
jksoft	0:e9f196d85a46	714
jksoft	0:e9f196d85a46	715
jksoft	0:e9f196d85a46	716	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	717	/* Change window offset */
jksoft	0:e9f196d85a46	718	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	719
jksoft	0:e9f196d85a46	720	static
jksoft	0:e9f196d85a46	721	FRESULT move_window (
jksoft	0:e9f196d85a46	722	FATFS fs, / File system object */
jksoft	0:e9f196d85a46	723	DWORD sector /* Sector number to make appearance in the fs->win[] */
jksoft	0:e9f196d85a46	724	) /* Move to zero only writes back dirty window */
jksoft	0:e9f196d85a46	725	{
jksoft	0:e9f196d85a46	726	DWORD wsect;
jksoft	0:e9f196d85a46	727
jksoft	0:e9f196d85a46	728
jksoft	0:e9f196d85a46	729	wsect = fs->winsect;
jksoft	0:e9f196d85a46	730	if (wsect != sector) { /* Changed current window */
jksoft	0:e9f196d85a46	731	#if !_FS_READONLY
jksoft	0:e9f196d85a46	732	if (fs->wflag) { /* Write back dirty window if needed */
jksoft	0:e9f196d85a46	733	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK)
jksoft	0:e9f196d85a46	734	return FR_DISK_ERR;
jksoft	0:e9f196d85a46	735	fs->wflag = 0;
jksoft	0:e9f196d85a46	736	if (wsect < (fs->fatbase + fs->fsize)) { /* In FAT area */
jksoft	0:e9f196d85a46	737	BYTE nf;
jksoft	0:e9f196d85a46	738	for (nf = fs->n_fats; nf > 1; nf--) { /* Reflect the change to all FAT copies */
jksoft	0:e9f196d85a46	739	wsect += fs->fsize;
jksoft	0:e9f196d85a46	740	disk_write(fs->drv, fs->win, wsect, 1);
jksoft	0:e9f196d85a46	741	}
jksoft	0:e9f196d85a46	742	}
jksoft	0:e9f196d85a46	743	}
jksoft	0:e9f196d85a46	744	#endif
jksoft	0:e9f196d85a46	745	if (sector) {
jksoft	0:e9f196d85a46	746	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK)
jksoft	0:e9f196d85a46	747	return FR_DISK_ERR;
jksoft	0:e9f196d85a46	748	fs->winsect = sector;
jksoft	0:e9f196d85a46	749	}
jksoft	0:e9f196d85a46	750	}
jksoft	0:e9f196d85a46	751
jksoft	0:e9f196d85a46	752	return FR_OK;
jksoft	0:e9f196d85a46	753	}
jksoft	0:e9f196d85a46	754
jksoft	0:e9f196d85a46	755
jksoft	0:e9f196d85a46	756
jksoft	0:e9f196d85a46	757
jksoft	0:e9f196d85a46	758	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	759	/* Clean-up cached data */
jksoft	0:e9f196d85a46	760	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	761	#if !_FS_READONLY
jksoft	0:e9f196d85a46	762	static
jksoft	0:e9f196d85a46	763	FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */
jksoft	0:e9f196d85a46	764	FATFS fs / File system object */
jksoft	0:e9f196d85a46	765	)
jksoft	0:e9f196d85a46	766	{
jksoft	0:e9f196d85a46	767	FRESULT res;
jksoft	0:e9f196d85a46	768
jksoft	0:e9f196d85a46	769
jksoft	0:e9f196d85a46	770	res = move_window(fs, 0);
jksoft	0:e9f196d85a46	771	if (res == FR_OK) {
jksoft	0:e9f196d85a46	772	/* Update FSInfo sector if needed */
jksoft	0:e9f196d85a46	773	if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
jksoft	0:e9f196d85a46	774	fs->winsect = 0;
jksoft	0:e9f196d85a46	775	/* Create FSInfo structure */
jksoft	0:e9f196d85a46	776	mem_set(fs->win, 0, 512);
jksoft	0:e9f196d85a46	777	ST_WORD(fs->win+BS_55AA, 0xAA55);
jksoft	0:e9f196d85a46	778	ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
jksoft	0:e9f196d85a46	779	ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
jksoft	0:e9f196d85a46	780	ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
jksoft	0:e9f196d85a46	781	ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
jksoft	0:e9f196d85a46	782	/* Write it into the FSInfo sector */
jksoft	0:e9f196d85a46	783	disk_write(fs->drv, fs->win, fs->fsi_sector, 1);
jksoft	0:e9f196d85a46	784	fs->fsi_flag = 0;
jksoft	0:e9f196d85a46	785	}
jksoft	0:e9f196d85a46	786	/* Make sure that no pending write process in the physical drive */
jksoft	0:e9f196d85a46	787	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
jksoft	0:e9f196d85a46	788	res = FR_DISK_ERR;
jksoft	0:e9f196d85a46	789	}
jksoft	0:e9f196d85a46	790
jksoft	0:e9f196d85a46	791	return res;
jksoft	0:e9f196d85a46	792	}
jksoft	0:e9f196d85a46	793	#endif
jksoft	0:e9f196d85a46	794
jksoft	0:e9f196d85a46	795
jksoft	0:e9f196d85a46	796
jksoft	0:e9f196d85a46	797
jksoft	0:e9f196d85a46	798	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	799	/* Get sector# from cluster# */
jksoft	0:e9f196d85a46	800	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	801
jksoft	0:e9f196d85a46	802
jksoft	0:e9f196d85a46	803	DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
jksoft	0:e9f196d85a46	804	FATFS fs, / File system object */
jksoft	0:e9f196d85a46	805	DWORD clst /* Cluster# to be converted */
jksoft	0:e9f196d85a46	806	)
jksoft	0:e9f196d85a46	807	{
jksoft	0:e9f196d85a46	808	clst -= 2;
jksoft	0:e9f196d85a46	809	if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
jksoft	0:e9f196d85a46	810	return clst * fs->csize + fs->database;
jksoft	0:e9f196d85a46	811	}
jksoft	0:e9f196d85a46	812
jksoft	0:e9f196d85a46	813
jksoft	0:e9f196d85a46	814
jksoft	0:e9f196d85a46	815
jksoft	0:e9f196d85a46	816	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	817	/* FAT access - Read value of a FAT entry */
jksoft	0:e9f196d85a46	818	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	819
jksoft	0:e9f196d85a46	820
jksoft	0:e9f196d85a46	821	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
jksoft	0:e9f196d85a46	822	FATFS fs, / File system object */
jksoft	0:e9f196d85a46	823	DWORD clst /* Cluster# to get the link information */
jksoft	0:e9f196d85a46	824	)
jksoft	0:e9f196d85a46	825	{
jksoft	0:e9f196d85a46	826	UINT wc, bc;
jksoft	0:e9f196d85a46	827	BYTE *p;
jksoft	0:e9f196d85a46	828
jksoft	0:e9f196d85a46	829
jksoft	0:e9f196d85a46	830	if (clst < 2 \|\| clst >= fs->n_fatent) /* Check range */
jksoft	0:e9f196d85a46	831	return 1;
jksoft	0:e9f196d85a46	832
jksoft	0:e9f196d85a46	833	switch (fs->fs_type) {
jksoft	0:e9f196d85a46	834	case FS_FAT12 :
jksoft	0:e9f196d85a46	835	bc = (UINT)clst; bc += bc / 2;
jksoft	0:e9f196d85a46	836	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
jksoft	0:e9f196d85a46	837	wc = fs->win[bc % SS(fs)]; bc++;
jksoft	0:e9f196d85a46	838	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
jksoft	0:e9f196d85a46	839	wc \|= fs->win[bc % SS(fs)] << 8;
jksoft	0:e9f196d85a46	840	return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
jksoft	0:e9f196d85a46	841
jksoft	0:e9f196d85a46	842	case FS_FAT16 :
jksoft	0:e9f196d85a46	843	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
jksoft	0:e9f196d85a46	844	p = &fs->win[clst * 2 % SS(fs)];
jksoft	0:e9f196d85a46	845	return LD_WORD(p);
jksoft	0:e9f196d85a46	846
jksoft	0:e9f196d85a46	847	case FS_FAT32 :
jksoft	0:e9f196d85a46	848	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
jksoft	0:e9f196d85a46	849	p = &fs->win[clst * 4 % SS(fs)];
jksoft	0:e9f196d85a46	850	return LD_DWORD(p) & 0x0FFFFFFF;
jksoft	0:e9f196d85a46	851	}
jksoft	0:e9f196d85a46	852
jksoft	0:e9f196d85a46	853	return 0xFFFFFFFF; /* An error occurred at the disk I/O layer */
jksoft	0:e9f196d85a46	854	}
jksoft	0:e9f196d85a46	855
jksoft	0:e9f196d85a46	856
jksoft	0:e9f196d85a46	857
jksoft	0:e9f196d85a46	858
jksoft	0:e9f196d85a46	859	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	860	/* FAT access - Change value of a FAT entry */
jksoft	0:e9f196d85a46	861	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	862	#if !_FS_READONLY
jksoft	0:e9f196d85a46	863
jksoft	0:e9f196d85a46	864	FRESULT put_fat (
jksoft	0:e9f196d85a46	865	FATFS fs, / File system object */
jksoft	0:e9f196d85a46	866	DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
jksoft	0:e9f196d85a46	867	DWORD val /* New value to mark the cluster */
jksoft	0:e9f196d85a46	868	)
jksoft	0:e9f196d85a46	869	{
jksoft	0:e9f196d85a46	870	UINT bc;
jksoft	0:e9f196d85a46	871	BYTE *p;
jksoft	0:e9f196d85a46	872	FRESULT res;
jksoft	0:e9f196d85a46	873
jksoft	0:e9f196d85a46	874
jksoft	0:e9f196d85a46	875	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
jksoft	0:e9f196d85a46	876	res = FR_INT_ERR;
jksoft	0:e9f196d85a46	877
jksoft	0:e9f196d85a46	878	} else {
jksoft	0:e9f196d85a46	879	switch (fs->fs_type) {
jksoft	0:e9f196d85a46	880	case FS_FAT12 :
jksoft	0:e9f196d85a46	881	bc = (UINT)clst; bc += bc / 2;
jksoft	0:e9f196d85a46	882	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
jksoft	0:e9f196d85a46	883	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	884	p = &fs->win[bc % SS(fs)];
jksoft	0:e9f196d85a46	885	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
jksoft	0:e9f196d85a46	886	bc++;
jksoft	0:e9f196d85a46	887	fs->wflag = 1;
jksoft	0:e9f196d85a46	888	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
jksoft	0:e9f196d85a46	889	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	890	p = &fs->win[bc % SS(fs)];
jksoft	0:e9f196d85a46	891	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
jksoft	0:e9f196d85a46	892	break;
jksoft	0:e9f196d85a46	893
jksoft	0:e9f196d85a46	894	case FS_FAT16 :
jksoft	0:e9f196d85a46	895	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
jksoft	0:e9f196d85a46	896	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	897	p = &fs->win[clst * 2 % SS(fs)];
jksoft	0:e9f196d85a46	898	ST_WORD(p, (WORD)val);
jksoft	0:e9f196d85a46	899	break;
jksoft	0:e9f196d85a46	900
jksoft	0:e9f196d85a46	901	case FS_FAT32 :
jksoft	0:e9f196d85a46	902	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
jksoft	0:e9f196d85a46	903	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	904	p = &fs->win[clst * 4 % SS(fs)];
jksoft	0:e9f196d85a46	905	val \|= LD_DWORD(p) & 0xF0000000;
jksoft	0:e9f196d85a46	906	ST_DWORD(p, val);
jksoft	0:e9f196d85a46	907	break;
jksoft	0:e9f196d85a46	908
jksoft	0:e9f196d85a46	909	default :
jksoft	0:e9f196d85a46	910	res = FR_INT_ERR;
jksoft	0:e9f196d85a46	911	}
jksoft	0:e9f196d85a46	912	fs->wflag = 1;
jksoft	0:e9f196d85a46	913	}
jksoft	0:e9f196d85a46	914
jksoft	0:e9f196d85a46	915	return res;
jksoft	0:e9f196d85a46	916	}
jksoft	0:e9f196d85a46	917	#endif /* !_FS_READONLY */
jksoft	0:e9f196d85a46	918
jksoft	0:e9f196d85a46	919
jksoft	0:e9f196d85a46	920
jksoft	0:e9f196d85a46	921
jksoft	0:e9f196d85a46	922	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	923	/* FAT handling - Remove a cluster chain */
jksoft	0:e9f196d85a46	924	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	925	#if !_FS_READONLY
jksoft	0:e9f196d85a46	926	static
jksoft	0:e9f196d85a46	927	FRESULT remove_chain (
jksoft	0:e9f196d85a46	928	FATFS fs, / File system object */
jksoft	0:e9f196d85a46	929	DWORD clst /* Cluster# to remove a chain from */
jksoft	0:e9f196d85a46	930	)
jksoft	0:e9f196d85a46	931	{
jksoft	0:e9f196d85a46	932	FRESULT res;
jksoft	0:e9f196d85a46	933	DWORD nxt;
jksoft	0:e9f196d85a46	934	#if _USE_ERASE
jksoft	0:e9f196d85a46	935	DWORD scl = clst, ecl = clst, rt[2];
jksoft	0:e9f196d85a46	936	#endif
jksoft	0:e9f196d85a46	937
jksoft	0:e9f196d85a46	938	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
jksoft	0:e9f196d85a46	939	res = FR_INT_ERR;
jksoft	0:e9f196d85a46	940
jksoft	0:e9f196d85a46	941	} else {
jksoft	0:e9f196d85a46	942	res = FR_OK;
jksoft	0:e9f196d85a46	943	while (clst < fs->n_fatent) { /* Not a last link? */
jksoft	0:e9f196d85a46	944	nxt = get_fat(fs, clst); /* Get cluster status */
jksoft	0:e9f196d85a46	945	if (nxt == 0) break; /* Empty cluster? */
jksoft	0:e9f196d85a46	946	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
jksoft	0:e9f196d85a46	947	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
jksoft	0:e9f196d85a46	948	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
jksoft	0:e9f196d85a46	949	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	950	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */
jksoft	0:e9f196d85a46	951	fs->free_clust++;
jksoft	0:e9f196d85a46	952	fs->fsi_flag = 1;
jksoft	0:e9f196d85a46	953	}
jksoft	0:e9f196d85a46	954	#if _USE_ERASE
jksoft	0:e9f196d85a46	955	if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
jksoft	0:e9f196d85a46	956	ecl = nxt;
jksoft	0:e9f196d85a46	957	} else { /* End of contiguous clusters */
jksoft	0:e9f196d85a46	958	rt[0] = clust2sect(fs, scl); /* Start sector */
jksoft	0:e9f196d85a46	959	rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
jksoft	0:e9f196d85a46	960	disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, rt); /* Erase the block */
jksoft	0:e9f196d85a46	961	scl = ecl = nxt;
jksoft	0:e9f196d85a46	962	}
jksoft	0:e9f196d85a46	963	#endif
jksoft	0:e9f196d85a46	964	clst = nxt; /* Next cluster */
jksoft	0:e9f196d85a46	965	}
jksoft	0:e9f196d85a46	966	}
jksoft	0:e9f196d85a46	967
jksoft	0:e9f196d85a46	968	return res;
jksoft	0:e9f196d85a46	969	}
jksoft	0:e9f196d85a46	970	#endif
jksoft	0:e9f196d85a46	971
jksoft	0:e9f196d85a46	972
jksoft	0:e9f196d85a46	973
jksoft	0:e9f196d85a46	974
jksoft	0:e9f196d85a46	975	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	976	/* FAT handling - Stretch or Create a cluster chain */
jksoft	0:e9f196d85a46	977	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	978	#if !_FS_READONLY
jksoft	0:e9f196d85a46	979	static
jksoft	0:e9f196d85a46	980	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
jksoft	0:e9f196d85a46	981	FATFS fs, / File system object */
jksoft	0:e9f196d85a46	982	DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
jksoft	0:e9f196d85a46	983	)
jksoft	0:e9f196d85a46	984	{
jksoft	0:e9f196d85a46	985	DWORD cs, ncl, scl;
jksoft	0:e9f196d85a46	986	FRESULT res;
jksoft	0:e9f196d85a46	987
jksoft	0:e9f196d85a46	988
jksoft	0:e9f196d85a46	989	if (clst == 0) { /* Create a new chain */
jksoft	0:e9f196d85a46	990	scl = fs->last_clust; /* Get suggested start point */
jksoft	0:e9f196d85a46	991	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
jksoft	0:e9f196d85a46	992	}
jksoft	0:e9f196d85a46	993	else { /* Stretch the current chain */
jksoft	0:e9f196d85a46	994	cs = get_fat(fs, clst); /* Check the cluster status */
jksoft	0:e9f196d85a46	995	if (cs < 2) return 1; /* It is an invalid cluster */
jksoft	0:e9f196d85a46	996	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
jksoft	0:e9f196d85a46	997	scl = clst;
jksoft	0:e9f196d85a46	998	}
jksoft	0:e9f196d85a46	999
jksoft	0:e9f196d85a46	1000	ncl = scl; /* Start cluster */
jksoft	0:e9f196d85a46	1001	for (;;) {
jksoft	0:e9f196d85a46	1002	ncl++; /* Next cluster */
jksoft	0:e9f196d85a46	1003	if (ncl >= fs->n_fatent) { /* Wrap around */
jksoft	0:e9f196d85a46	1004	ncl = 2;
jksoft	0:e9f196d85a46	1005	if (ncl > scl) return 0; /* No free cluster */
jksoft	0:e9f196d85a46	1006	}
jksoft	0:e9f196d85a46	1007	cs = get_fat(fs, ncl); /* Get the cluster status */
jksoft	0:e9f196d85a46	1008	if (cs == 0) break; /* Found a free cluster */
jksoft	0:e9f196d85a46	1009	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
jksoft	0:e9f196d85a46	1010	return cs;
jksoft	0:e9f196d85a46	1011	if (ncl == scl) return 0; /* No free cluster */
jksoft	0:e9f196d85a46	1012	}
jksoft	0:e9f196d85a46	1013
jksoft	0:e9f196d85a46	1014	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
jksoft	0:e9f196d85a46	1015	if (res == FR_OK && clst != 0) {
jksoft	0:e9f196d85a46	1016	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
jksoft	0:e9f196d85a46	1017	}
jksoft	0:e9f196d85a46	1018	if (res == FR_OK) {
jksoft	0:e9f196d85a46	1019	fs->last_clust = ncl; /* Update FSINFO */
jksoft	0:e9f196d85a46	1020	if (fs->free_clust != 0xFFFFFFFF) {
jksoft	0:e9f196d85a46	1021	fs->free_clust--;
jksoft	0:e9f196d85a46	1022	fs->fsi_flag = 1;
jksoft	0:e9f196d85a46	1023	}
jksoft	0:e9f196d85a46	1024	} else {
jksoft	0:e9f196d85a46	1025	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
jksoft	0:e9f196d85a46	1026	}
jksoft	0:e9f196d85a46	1027
jksoft	0:e9f196d85a46	1028	return ncl; /* Return new cluster number or error code */
jksoft	0:e9f196d85a46	1029	}
jksoft	0:e9f196d85a46	1030	#endif /* !_FS_READONLY */
jksoft	0:e9f196d85a46	1031
jksoft	0:e9f196d85a46	1032
jksoft	0:e9f196d85a46	1033
jksoft	0:e9f196d85a46	1034	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1035	/* FAT handling - Convert offset into cluster with link map table */
jksoft	0:e9f196d85a46	1036	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1037
jksoft	0:e9f196d85a46	1038	#if _USE_FASTSEEK
jksoft	0:e9f196d85a46	1039	static
jksoft	0:e9f196d85a46	1040	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
jksoft	0:e9f196d85a46	1041	FIL* fp, /* Pointer to the file object */
jksoft	0:e9f196d85a46	1042	DWORD ofs /* File offset to be converted to cluster# */
jksoft	0:e9f196d85a46	1043	)
jksoft	0:e9f196d85a46	1044	{
jksoft	0:e9f196d85a46	1045	DWORD cl, ncl, *tbl;
jksoft	0:e9f196d85a46	1046
jksoft	0:e9f196d85a46	1047
jksoft	0:e9f196d85a46	1048	tbl = fp->cltbl + 1; /* Top of CLMT */
jksoft	0:e9f196d85a46	1049	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
jksoft	0:e9f196d85a46	1050	for (;;) {
jksoft	0:e9f196d85a46	1051	ncl = tbl++; / Number of cluters in the fragment */
jksoft	0:e9f196d85a46	1052	if (!ncl) return 0; /* End of table? (error) */
jksoft	0:e9f196d85a46	1053	if (cl < ncl) break; /* In this fragment? */
jksoft	0:e9f196d85a46	1054	cl -= ncl; tbl++; /* Next fragment */
jksoft	0:e9f196d85a46	1055	}
jksoft	0:e9f196d85a46	1056	return cl + tbl; / Return the cluster number */
jksoft	0:e9f196d85a46	1057	}
jksoft	0:e9f196d85a46	1058	#endif /* _USE_FASTSEEK */
jksoft	0:e9f196d85a46	1059
jksoft	0:e9f196d85a46	1060
jksoft	0:e9f196d85a46	1061
jksoft	0:e9f196d85a46	1062	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1063	/* Directory handling - Set directory index */
jksoft	0:e9f196d85a46	1064	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1065
jksoft	0:e9f196d85a46	1066	static
jksoft	0:e9f196d85a46	1067	FRESULT dir_sdi (
jksoft	0:e9f196d85a46	1068	FATFS_DIR dj, / Pointer to directory object */
jksoft	0:e9f196d85a46	1069	WORD idx /* Index of directory table */
jksoft	0:e9f196d85a46	1070	)
jksoft	0:e9f196d85a46	1071	{
jksoft	0:e9f196d85a46	1072	DWORD clst;
jksoft	0:e9f196d85a46	1073	WORD ic;
jksoft	0:e9f196d85a46	1074
jksoft	0:e9f196d85a46	1075
jksoft	0:e9f196d85a46	1076	dj->index = idx;
jksoft	0:e9f196d85a46	1077	clst = dj->sclust;
jksoft	0:e9f196d85a46	1078	if (clst == 1 \|\| clst >= dj->fs->n_fatent) /* Check start cluster range */
jksoft	0:e9f196d85a46	1079	return FR_INT_ERR;
jksoft	0:e9f196d85a46	1080	if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
jksoft	0:e9f196d85a46	1081	clst = dj->fs->dirbase;
jksoft	0:e9f196d85a46	1082
jksoft	0:e9f196d85a46	1083	if (clst == 0) { /* Static table (root-dir in FAT12/16) */
jksoft	0:e9f196d85a46	1084	dj->clust = clst;
jksoft	0:e9f196d85a46	1085	if (idx >= dj->fs->n_rootdir) /* Index is out of range */
jksoft	0:e9f196d85a46	1086	return FR_INT_ERR;
jksoft	0:e9f196d85a46	1087	dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
jksoft	0:e9f196d85a46	1088	}
jksoft	0:e9f196d85a46	1089	else { /* Dynamic table (sub-dirs or root-dir in FAT32) */
jksoft	0:e9f196d85a46	1090	ic = SS(dj->fs) / SZ_DIR * dj->fs->csize; /* Entries per cluster */
jksoft	0:e9f196d85a46	1091	while (idx >= ic) { /* Follow cluster chain */
jksoft	0:e9f196d85a46	1092	clst = get_fat(dj->fs, clst); /* Get next cluster */
jksoft	0:e9f196d85a46	1093	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
jksoft	0:e9f196d85a46	1094	if (clst < 2 \|\| clst >= dj->fs->n_fatent) /* Reached to end of table or int error */
jksoft	0:e9f196d85a46	1095	return FR_INT_ERR;
jksoft	0:e9f196d85a46	1096	idx -= ic;
jksoft	0:e9f196d85a46	1097	}
jksoft	0:e9f196d85a46	1098	dj->clust = clst;
jksoft	0:e9f196d85a46	1099	dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
jksoft	0:e9f196d85a46	1100	}
jksoft	0:e9f196d85a46	1101
jksoft	0:e9f196d85a46	1102	dj->dir = dj->fs->win + (idx % (SS(dj->fs) / SZ_DIR)) * SZ_DIR; /* Ptr to the entry in the sector */
jksoft	0:e9f196d85a46	1103
jksoft	0:e9f196d85a46	1104	return FR_OK; /* Seek succeeded */
jksoft	0:e9f196d85a46	1105	}
jksoft	0:e9f196d85a46	1106
jksoft	0:e9f196d85a46	1107
jksoft	0:e9f196d85a46	1108
jksoft	0:e9f196d85a46	1109
jksoft	0:e9f196d85a46	1110	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1111	/* Directory handling - Move directory table index next */
jksoft	0:e9f196d85a46	1112	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1113
jksoft	0:e9f196d85a46	1114	static
jksoft	0:e9f196d85a46	1115	FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not stretch */
jksoft	0:e9f196d85a46	1116	FATFS_DIR dj, / Pointer to directory object */
jksoft	0:e9f196d85a46	1117	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
jksoft	0:e9f196d85a46	1118	)
jksoft	0:e9f196d85a46	1119	{
jksoft	0:e9f196d85a46	1120	DWORD clst;
jksoft	0:e9f196d85a46	1121	WORD i;
jksoft	0:e9f196d85a46	1122
jksoft	0:e9f196d85a46	1123
jksoft	0:e9f196d85a46	1124	stretch = stretch; /* To suppress warning on read-only cfg. */
jksoft	0:e9f196d85a46	1125	i = dj->index + 1;
jksoft	0:e9f196d85a46	1126	if (!i \|\| !dj->sect) /* Report EOT when index has reached 65535 */
jksoft	0:e9f196d85a46	1127	return FR_NO_FILE;
jksoft	0:e9f196d85a46	1128
jksoft	0:e9f196d85a46	1129	if (!(i % (SS(dj->fs) / SZ_DIR))) { /* Sector changed? */
jksoft	0:e9f196d85a46	1130	dj->sect++; /* Next sector */
jksoft	0:e9f196d85a46	1131
jksoft	0:e9f196d85a46	1132	if (dj->clust == 0) { /* Static table */
jksoft	0:e9f196d85a46	1133	if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */
jksoft	0:e9f196d85a46	1134	return FR_NO_FILE;
jksoft	0:e9f196d85a46	1135	}
jksoft	0:e9f196d85a46	1136	else { /* Dynamic table */
jksoft	0:e9f196d85a46	1137	if (((i / (SS(dj->fs) / SZ_DIR)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
jksoft	0:e9f196d85a46	1138	clst = get_fat(dj->fs, dj->clust); /* Get next cluster */
jksoft	0:e9f196d85a46	1139	if (clst <= 1) return FR_INT_ERR;
jksoft	0:e9f196d85a46	1140	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
jksoft	0:e9f196d85a46	1141	if (clst >= dj->fs->n_fatent) { /* When it reached end of dynamic table */
jksoft	0:e9f196d85a46	1142	#if !_FS_READONLY
jksoft	0:e9f196d85a46	1143	BYTE c;
jksoft	0:e9f196d85a46	1144	if (!stretch) return FR_NO_FILE; /* When do not stretch, report EOT */
jksoft	0:e9f196d85a46	1145	clst = create_chain(dj->fs, dj->clust); /* Stretch cluster chain */
jksoft	0:e9f196d85a46	1146	if (clst == 0) return FR_DENIED; /* No free cluster */
jksoft	0:e9f196d85a46	1147	if (clst == 1) return FR_INT_ERR;
jksoft	0:e9f196d85a46	1148	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
jksoft	0:e9f196d85a46	1149	/* Clean-up stretched table */
jksoft	0:e9f196d85a46	1150	if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */
jksoft	0:e9f196d85a46	1151	mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */
jksoft	0:e9f196d85a46	1152	dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */
jksoft	0:e9f196d85a46	1153	for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */
jksoft	0:e9f196d85a46	1154	dj->fs->wflag = 1;
jksoft	0:e9f196d85a46	1155	if (move_window(dj->fs, 0)) return FR_DISK_ERR;
jksoft	0:e9f196d85a46	1156	dj->fs->winsect++;
jksoft	0:e9f196d85a46	1157	}
jksoft	0:e9f196d85a46	1158	dj->fs->winsect -= c; /* Rewind window address */
jksoft	0:e9f196d85a46	1159	#else
jksoft	0:e9f196d85a46	1160	return FR_NO_FILE; /* Report EOT */
jksoft	0:e9f196d85a46	1161	#endif
jksoft	0:e9f196d85a46	1162	}
jksoft	0:e9f196d85a46	1163	dj->clust = clst; /* Initialize data for new cluster */
jksoft	0:e9f196d85a46	1164	dj->sect = clust2sect(dj->fs, clst);
jksoft	0:e9f196d85a46	1165	}
jksoft	0:e9f196d85a46	1166	}
jksoft	0:e9f196d85a46	1167	}
jksoft	0:e9f196d85a46	1168
jksoft	0:e9f196d85a46	1169	dj->index = i;
jksoft	0:e9f196d85a46	1170	dj->dir = dj->fs->win + (i % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;
jksoft	0:e9f196d85a46	1171
jksoft	0:e9f196d85a46	1172	return FR_OK;
jksoft	0:e9f196d85a46	1173	}
jksoft	0:e9f196d85a46	1174
jksoft	0:e9f196d85a46	1175
jksoft	0:e9f196d85a46	1176
jksoft	0:e9f196d85a46	1177
jksoft	0:e9f196d85a46	1178	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1179	/* Directory handling - Load/Store start cluster number */
jksoft	0:e9f196d85a46	1180	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1181
jksoft	0:e9f196d85a46	1182	static
jksoft	0:e9f196d85a46	1183	DWORD ld_clust (
jksoft	0:e9f196d85a46	1184	FATFS fs, / Pointer to the fs object */
jksoft	0:e9f196d85a46	1185	BYTE dir / Pointer to the directory entry */
jksoft	0:e9f196d85a46	1186	)
jksoft	0:e9f196d85a46	1187	{
jksoft	0:e9f196d85a46	1188	DWORD cl;
jksoft	0:e9f196d85a46	1189
jksoft	0:e9f196d85a46	1190	cl = LD_WORD(dir+DIR_FstClusLO);
jksoft	0:e9f196d85a46	1191	if (fs->fs_type == FS_FAT32)
jksoft	0:e9f196d85a46	1192	cl \|= (DWORD)LD_WORD(dir+DIR_FstClusHI) << 16;
jksoft	0:e9f196d85a46	1193
jksoft	0:e9f196d85a46	1194	return cl;
jksoft	0:e9f196d85a46	1195	}
jksoft	0:e9f196d85a46	1196
jksoft	0:e9f196d85a46	1197
jksoft	0:e9f196d85a46	1198	#if !_FS_READONLY
jksoft	0:e9f196d85a46	1199	static
jksoft	0:e9f196d85a46	1200	void st_clust (
jksoft	0:e9f196d85a46	1201	BYTE dir, / Pointer to the directory entry */
jksoft	0:e9f196d85a46	1202	DWORD cl /* Value to be set */
jksoft	0:e9f196d85a46	1203	)
jksoft	0:e9f196d85a46	1204	{
jksoft	0:e9f196d85a46	1205	ST_WORD(dir+DIR_FstClusLO, cl);
jksoft	0:e9f196d85a46	1206	ST_WORD(dir+DIR_FstClusHI, cl >> 16);
jksoft	0:e9f196d85a46	1207	}
jksoft	0:e9f196d85a46	1208	#endif
jksoft	0:e9f196d85a46	1209
jksoft	0:e9f196d85a46	1210
jksoft	0:e9f196d85a46	1211
jksoft	0:e9f196d85a46	1212	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1213	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
jksoft	0:e9f196d85a46	1214	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1215	#if _USE_LFN
jksoft	0:e9f196d85a46	1216	static
jksoft	0:e9f196d85a46	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 */
jksoft	0:e9f196d85a46	1218
jksoft	0:e9f196d85a46	1219
jksoft	0:e9f196d85a46	1220	static
jksoft	0:e9f196d85a46	1221	int cmp_lfn ( /* 1:Matched, 0:Not matched */
jksoft	0:e9f196d85a46	1222	WCHAR lfnbuf, / Pointer to the LFN to be compared */
jksoft	0:e9f196d85a46	1223	BYTE dir / Pointer to the directory entry containing a part of LFN */
jksoft	0:e9f196d85a46	1224	)
jksoft	0:e9f196d85a46	1225	{
jksoft	0:e9f196d85a46	1226	UINT i, s;
jksoft	0:e9f196d85a46	1227	WCHAR wc, uc;
jksoft	0:e9f196d85a46	1228
jksoft	0:e9f196d85a46	1229
jksoft	0:e9f196d85a46	1230	i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
jksoft	0:e9f196d85a46	1231	s = 0; wc = 1;
jksoft	0:e9f196d85a46	1232	do {
jksoft	0:e9f196d85a46	1233	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
jksoft	0:e9f196d85a46	1234	if (wc) { /* Last char has not been processed */
jksoft	0:e9f196d85a46	1235	wc = ff_wtoupper(uc); /* Convert it to upper case */
jksoft	0:e9f196d85a46	1236	if (i >= _MAX_LFN \|\| wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
jksoft	0:e9f196d85a46	1237	return 0; /* Not matched */
jksoft	0:e9f196d85a46	1238	} else {
jksoft	0:e9f196d85a46	1239	if (uc != 0xFFFF) return 0; /* Check filler */
jksoft	0:e9f196d85a46	1240	}
jksoft	0:e9f196d85a46	1241	} while (++s < 13); /* Repeat until all chars in the entry are checked */
jksoft	0:e9f196d85a46	1242
jksoft	0:e9f196d85a46	1243	if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) /* Last segment matched but different length */
jksoft	0:e9f196d85a46	1244	return 0;
jksoft	0:e9f196d85a46	1245
jksoft	0:e9f196d85a46	1246	return 1; /* The part of LFN matched */
jksoft	0:e9f196d85a46	1247	}
jksoft	0:e9f196d85a46	1248
jksoft	0:e9f196d85a46	1249
jksoft	0:e9f196d85a46	1250
jksoft	0:e9f196d85a46	1251	static
jksoft	0:e9f196d85a46	1252	int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
jksoft	0:e9f196d85a46	1253	WCHAR lfnbuf, / Pointer to the Unicode-LFN buffer */
jksoft	0:e9f196d85a46	1254	BYTE dir / Pointer to the directory entry */
jksoft	0:e9f196d85a46	1255	)
jksoft	0:e9f196d85a46	1256	{
jksoft	0:e9f196d85a46	1257	UINT i, s;
jksoft	0:e9f196d85a46	1258	WCHAR wc, uc;
jksoft	0:e9f196d85a46	1259
jksoft	0:e9f196d85a46	1260
jksoft	0:e9f196d85a46	1261	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
jksoft	0:e9f196d85a46	1262
jksoft	0:e9f196d85a46	1263	s = 0; wc = 1;
jksoft	0:e9f196d85a46	1264	do {
jksoft	0:e9f196d85a46	1265	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
jksoft	0:e9f196d85a46	1266	if (wc) { /* Last char has not been processed */
jksoft	0:e9f196d85a46	1267	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
jksoft	0:e9f196d85a46	1268	lfnbuf[i++] = wc = uc; /* Store it */
jksoft	0:e9f196d85a46	1269	} else {
jksoft	0:e9f196d85a46	1270	if (uc != 0xFFFF) return 0; /* Check filler */
jksoft	0:e9f196d85a46	1271	}
jksoft	0:e9f196d85a46	1272	} while (++s < 13); /* Read all character in the entry */
jksoft	0:e9f196d85a46	1273
jksoft	0:e9f196d85a46	1274	if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
jksoft	0:e9f196d85a46	1275	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
jksoft	0:e9f196d85a46	1276	lfnbuf[i] = 0;
jksoft	0:e9f196d85a46	1277	}
jksoft	0:e9f196d85a46	1278
jksoft	0:e9f196d85a46	1279	return 1;
jksoft	0:e9f196d85a46	1280	}
jksoft	0:e9f196d85a46	1281
jksoft	0:e9f196d85a46	1282
jksoft	0:e9f196d85a46	1283	#if !_FS_READONLY
jksoft	0:e9f196d85a46	1284	static
jksoft	0:e9f196d85a46	1285	void fit_lfn (
jksoft	0:e9f196d85a46	1286	const WCHAR lfnbuf, / Pointer to the LFN buffer */
jksoft	0:e9f196d85a46	1287	BYTE dir, / Pointer to the directory entry */
jksoft	0:e9f196d85a46	1288	BYTE ord, /* LFN order (1-20) */
jksoft	0:e9f196d85a46	1289	BYTE sum /* SFN sum */
jksoft	0:e9f196d85a46	1290	)
jksoft	0:e9f196d85a46	1291	{
jksoft	0:e9f196d85a46	1292	UINT i, s;
jksoft	0:e9f196d85a46	1293	WCHAR wc;
jksoft	0:e9f196d85a46	1294
jksoft	0:e9f196d85a46	1295
jksoft	0:e9f196d85a46	1296	dir[LDIR_Chksum] = sum; /* Set check sum */
jksoft	0:e9f196d85a46	1297	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
jksoft	0:e9f196d85a46	1298	dir[LDIR_Type] = 0;
jksoft	0:e9f196d85a46	1299	ST_WORD(dir+LDIR_FstClusLO, 0);
jksoft	0:e9f196d85a46	1300
jksoft	0:e9f196d85a46	1301	i = (ord - 1) * 13; /* Get offset in the LFN buffer */
jksoft	0:e9f196d85a46	1302	s = wc = 0;
jksoft	0:e9f196d85a46	1303	do {
jksoft	0:e9f196d85a46	1304	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */
jksoft	0:e9f196d85a46	1305	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
jksoft	0:e9f196d85a46	1306	if (!wc) wc = 0xFFFF; /* Padding chars following last char */
jksoft	0:e9f196d85a46	1307	} while (++s < 13);
jksoft	0:e9f196d85a46	1308	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLE; /* Bottom LFN part is the start of LFN sequence */
jksoft	0:e9f196d85a46	1309	dir[LDIR_Ord] = ord; /* Set the LFN order */
jksoft	0:e9f196d85a46	1310	}
jksoft	0:e9f196d85a46	1311
jksoft	0:e9f196d85a46	1312	#endif
jksoft	0:e9f196d85a46	1313	#endif
jksoft	0:e9f196d85a46	1314
jksoft	0:e9f196d85a46	1315
jksoft	0:e9f196d85a46	1316
jksoft	0:e9f196d85a46	1317	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1318	/* Create numbered name */
jksoft	0:e9f196d85a46	1319	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1320	#if _USE_LFN
jksoft	0:e9f196d85a46	1321	void gen_numname (
jksoft	0:e9f196d85a46	1322	BYTE dst, / Pointer to generated SFN */
jksoft	0:e9f196d85a46	1323	const BYTE src, / Pointer to source SFN to be modified */
jksoft	0:e9f196d85a46	1324	const WCHAR lfn, / Pointer to LFN */
jksoft	0:e9f196d85a46	1325	WORD seq /* Sequence number */
jksoft	0:e9f196d85a46	1326	)
jksoft	0:e9f196d85a46	1327	{
jksoft	0:e9f196d85a46	1328	BYTE ns[8], c;
jksoft	0:e9f196d85a46	1329	UINT i, j;
jksoft	0:e9f196d85a46	1330
jksoft	0:e9f196d85a46	1331
jksoft	0:e9f196d85a46	1332	mem_cpy(dst, src, 11);
jksoft	0:e9f196d85a46	1333
jksoft	0:e9f196d85a46	1334	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
jksoft	0:e9f196d85a46	1335	do seq = (seq >> 1) + (seq << 15) + (WORD)lfn++; while (lfn);
jksoft	0:e9f196d85a46	1336	}
jksoft	0:e9f196d85a46	1337
jksoft	0:e9f196d85a46	1338	/* itoa (hexdecimal) */
jksoft	0:e9f196d85a46	1339	i = 7;
jksoft	0:e9f196d85a46	1340	do {
jksoft	0:e9f196d85a46	1341	c = (seq % 16) + '0';
jksoft	0:e9f196d85a46	1342	if (c > '9') c += 7;
jksoft	0:e9f196d85a46	1343	ns[i--] = c;
jksoft	0:e9f196d85a46	1344	seq /= 16;
jksoft	0:e9f196d85a46	1345	} while (seq);
jksoft	0:e9f196d85a46	1346	ns[i] = '~';
jksoft	0:e9f196d85a46	1347
jksoft	0:e9f196d85a46	1348	/* Append the number */
jksoft	0:e9f196d85a46	1349	for (j = 0; j < i && dst[j] != ' '; j++) {
jksoft	0:e9f196d85a46	1350	if (IsDBCS1(dst[j])) {
jksoft	0:e9f196d85a46	1351	if (j == i - 1) break;
jksoft	0:e9f196d85a46	1352	j++;
jksoft	0:e9f196d85a46	1353	}
jksoft	0:e9f196d85a46	1354	}
jksoft	0:e9f196d85a46	1355	do {
jksoft	0:e9f196d85a46	1356	dst[j++] = (i < 8) ? ns[i++] : ' ';
jksoft	0:e9f196d85a46	1357	} while (j < 8);
jksoft	0:e9f196d85a46	1358	}
jksoft	0:e9f196d85a46	1359	#endif
jksoft	0:e9f196d85a46	1360
jksoft	0:e9f196d85a46	1361
jksoft	0:e9f196d85a46	1362
jksoft	0:e9f196d85a46	1363
jksoft	0:e9f196d85a46	1364	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1365	/* Calculate sum of an SFN */
jksoft	0:e9f196d85a46	1366	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1367	#if _USE_LFN
jksoft	0:e9f196d85a46	1368	static
jksoft	0:e9f196d85a46	1369	BYTE sum_sfn (
jksoft	0:e9f196d85a46	1370	const BYTE dir / Ptr to directory entry */
jksoft	0:e9f196d85a46	1371	)
jksoft	0:e9f196d85a46	1372	{
jksoft	0:e9f196d85a46	1373	BYTE sum = 0;
jksoft	0:e9f196d85a46	1374	UINT n = 11;
jksoft	0:e9f196d85a46	1375
jksoft	0:e9f196d85a46	1376	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
jksoft	0:e9f196d85a46	1377	return sum;
jksoft	0:e9f196d85a46	1378	}
jksoft	0:e9f196d85a46	1379	#endif
jksoft	0:e9f196d85a46	1380
jksoft	0:e9f196d85a46	1381
jksoft	0:e9f196d85a46	1382
jksoft	0:e9f196d85a46	1383
jksoft	0:e9f196d85a46	1384	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1385	/* Directory handling - Find an object in the directory */
jksoft	0:e9f196d85a46	1386	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1387
jksoft	0:e9f196d85a46	1388	static
jksoft	0:e9f196d85a46	1389	FRESULT dir_find (
jksoft	0:e9f196d85a46	1390	FATFS_DIR dj / Pointer to the directory object linked to the file name */
jksoft	0:e9f196d85a46	1391	)
jksoft	0:e9f196d85a46	1392	{
jksoft	0:e9f196d85a46	1393	FRESULT res;
jksoft	0:e9f196d85a46	1394	BYTE c, *dir;
jksoft	0:e9f196d85a46	1395	#if _USE_LFN
jksoft	0:e9f196d85a46	1396	BYTE a, ord, sum;
jksoft	0:e9f196d85a46	1397	#endif
jksoft	0:e9f196d85a46	1398
jksoft	0:e9f196d85a46	1399	res = dir_sdi(dj, 0); /* Rewind directory object */
jksoft	0:e9f196d85a46	1400	if (res != FR_OK) return res;
jksoft	0:e9f196d85a46	1401
jksoft	0:e9f196d85a46	1402	#if _USE_LFN
jksoft	0:e9f196d85a46	1403	ord = sum = 0xFF;
jksoft	0:e9f196d85a46	1404	#endif
jksoft	0:e9f196d85a46	1405	do {
jksoft	0:e9f196d85a46	1406	res = move_window(dj->fs, dj->sect);
jksoft	0:e9f196d85a46	1407	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	1408	dir = dj->dir; /* Ptr to the directory entry of current index */
jksoft	0:e9f196d85a46	1409	c = dir[DIR_Name];
jksoft	0:e9f196d85a46	1410	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
jksoft	0:e9f196d85a46	1411	#if _USE_LFN /* LFN configuration */
jksoft	0:e9f196d85a46	1412	a = dir[DIR_Attr] & AM_MASK;
jksoft	0:e9f196d85a46	1413	if (c == DDE \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
jksoft	0:e9f196d85a46	1414	ord = 0xFF;
jksoft	0:e9f196d85a46	1415	} else {
jksoft	0:e9f196d85a46	1416	if (a == AM_LFN) { /* An LFN entry is found */
jksoft	0:e9f196d85a46	1417	if (dj->lfn) {
jksoft	0:e9f196d85a46	1418	if (c & LLE) { /* Is it start of LFN sequence? */
jksoft	0:e9f196d85a46	1419	sum = dir[LDIR_Chksum];
jksoft	0:e9f196d85a46	1420	c &= ~LLE; ord = c; /* LFN start order */
jksoft	0:e9f196d85a46	1421	dj->lfn_idx = dj->index;
jksoft	0:e9f196d85a46	1422	}
jksoft	0:e9f196d85a46	1423	/* Check validity of the LFN entry and compare it with given name */
jksoft	0:e9f196d85a46	1424	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
jksoft	0:e9f196d85a46	1425	}
jksoft	0:e9f196d85a46	1426	} else { /* An SFN entry is found */
jksoft	0:e9f196d85a46	1427	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
jksoft	0:e9f196d85a46	1428	ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */
jksoft	0:e9f196d85a46	1429	if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */
jksoft	0:e9f196d85a46	1430	}
jksoft	0:e9f196d85a46	1431	}
jksoft	0:e9f196d85a46	1432	#else /* Non LFN configuration */
jksoft	0:e9f196d85a46	1433	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
jksoft	0:e9f196d85a46	1434	break;
jksoft	0:e9f196d85a46	1435	#endif
jksoft	0:e9f196d85a46	1436	res = dir_next(dj, 0); /* Next entry */
jksoft	0:e9f196d85a46	1437	} while (res == FR_OK);
jksoft	0:e9f196d85a46	1438
jksoft	0:e9f196d85a46	1439	return res;
jksoft	0:e9f196d85a46	1440	}
jksoft	0:e9f196d85a46	1441
jksoft	0:e9f196d85a46	1442
jksoft	0:e9f196d85a46	1443
jksoft	0:e9f196d85a46	1444
jksoft	0:e9f196d85a46	1445	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1446	/* Read an object from the directory */
jksoft	0:e9f196d85a46	1447	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1448	#if _FS_MINIMIZE <= 1
jksoft	0:e9f196d85a46	1449	static
jksoft	0:e9f196d85a46	1450	FRESULT dir_read (
jksoft	0:e9f196d85a46	1451	FATFS_DIR dj / Pointer to the directory object that pointing the entry to be read */
jksoft	0:e9f196d85a46	1452	)
jksoft	0:e9f196d85a46	1453	{
jksoft	0:e9f196d85a46	1454	FRESULT res;
jksoft	0:e9f196d85a46	1455	BYTE c, *dir;
jksoft	0:e9f196d85a46	1456	#if _USE_LFN
jksoft	0:e9f196d85a46	1457	BYTE a, ord = 0xFF, sum = 0xFF;
jksoft	0:e9f196d85a46	1458	#endif
jksoft	0:e9f196d85a46	1459
jksoft	0:e9f196d85a46	1460	res = FR_NO_FILE;
jksoft	0:e9f196d85a46	1461	while (dj->sect) {
jksoft	0:e9f196d85a46	1462	res = move_window(dj->fs, dj->sect);
jksoft	0:e9f196d85a46	1463	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	1464	dir = dj->dir; /* Ptr to the directory entry of current index */
jksoft	0:e9f196d85a46	1465	c = dir[DIR_Name];
jksoft	0:e9f196d85a46	1466	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
jksoft	0:e9f196d85a46	1467	#if _USE_LFN /* LFN configuration */
jksoft	0:e9f196d85a46	1468	a = dir[DIR_Attr] & AM_MASK;
jksoft	0:e9f196d85a46	1469	if (c == DDE \|\| (!_FS_RPATH && c == '.') \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
jksoft	0:e9f196d85a46	1470	ord = 0xFF;
jksoft	0:e9f196d85a46	1471	} else {
jksoft	0:e9f196d85a46	1472	if (a == AM_LFN) { /* An LFN entry is found */
jksoft	0:e9f196d85a46	1473	if (c & LLE) { /* Is it start of LFN sequence? */
jksoft	0:e9f196d85a46	1474	sum = dir[LDIR_Chksum];
jksoft	0:e9f196d85a46	1475	c &= ~LLE; ord = c;
jksoft	0:e9f196d85a46	1476	dj->lfn_idx = dj->index;
jksoft	0:e9f196d85a46	1477	}
jksoft	0:e9f196d85a46	1478	/* Check LFN validity and capture it */
jksoft	0:e9f196d85a46	1479	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
jksoft	0:e9f196d85a46	1480	} else { /* An SFN entry is found */
jksoft	0:e9f196d85a46	1481	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
jksoft	0:e9f196d85a46	1482	dj->lfn_idx = 0xFFFF; /* It has no LFN. */
jksoft	0:e9f196d85a46	1483	break;
jksoft	0:e9f196d85a46	1484	}
jksoft	0:e9f196d85a46	1485	}
jksoft	0:e9f196d85a46	1486	#else /* Non LFN configuration */
jksoft	0:e9f196d85a46	1487	if (c != DDE && (_FS_RPATH \|\| c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
jksoft	0:e9f196d85a46	1488	break;
jksoft	0:e9f196d85a46	1489	#endif
jksoft	0:e9f196d85a46	1490	res = dir_next(dj, 0); /* Next entry */
jksoft	0:e9f196d85a46	1491	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	1492	}
jksoft	0:e9f196d85a46	1493
jksoft	0:e9f196d85a46	1494	if (res != FR_OK) dj->sect = 0;
jksoft	0:e9f196d85a46	1495
jksoft	0:e9f196d85a46	1496	return res;
jksoft	0:e9f196d85a46	1497	}
jksoft	0:e9f196d85a46	1498	#endif
jksoft	0:e9f196d85a46	1499
jksoft	0:e9f196d85a46	1500
jksoft	0:e9f196d85a46	1501
jksoft	0:e9f196d85a46	1502	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1503	/* Register an object to the directory */
jksoft	0:e9f196d85a46	1504	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1505	#if !_FS_READONLY
jksoft	0:e9f196d85a46	1506	static
jksoft	0:e9f196d85a46	1507	FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
jksoft	0:e9f196d85a46	1508	FATFS_DIR dj / Target directory with object name to be created */
jksoft	0:e9f196d85a46	1509	)
jksoft	0:e9f196d85a46	1510	{
jksoft	0:e9f196d85a46	1511	FRESULT res;
jksoft	0:e9f196d85a46	1512	BYTE c, *dir;
jksoft	0:e9f196d85a46	1513	#if _USE_LFN /* LFN configuration */
jksoft	0:e9f196d85a46	1514	WORD n, ne, is;
jksoft	0:e9f196d85a46	1515	BYTE sn[12], *fn, sum;
jksoft	0:e9f196d85a46	1516	WCHAR *lfn;
jksoft	0:e9f196d85a46	1517
jksoft	0:e9f196d85a46	1518
jksoft	0:e9f196d85a46	1519	fn = dj->fn; lfn = dj->lfn;
jksoft	0:e9f196d85a46	1520	mem_cpy(sn, fn, 12);
jksoft	0:e9f196d85a46	1521
jksoft	0:e9f196d85a46	1522	if (_FS_RPATH && (sn[NS] & NS_DOT)) /* Cannot create dot entry */
jksoft	0:e9f196d85a46	1523	return FR_INVALID_NAME;
jksoft	0:e9f196d85a46	1524
jksoft	0:e9f196d85a46	1525	if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
jksoft	0:e9f196d85a46	1526	fn[NS] = 0; dj->lfn = 0; /* Find only SFN */
jksoft	0:e9f196d85a46	1527	for (n = 1; n < 100; n++) {
jksoft	0:e9f196d85a46	1528	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
jksoft	0:e9f196d85a46	1529	res = dir_find(dj); /* Check if the name collides with existing SFN */
jksoft	0:e9f196d85a46	1530	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	1531	}
jksoft	0:e9f196d85a46	1532	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
jksoft	0:e9f196d85a46	1533	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
jksoft	0:e9f196d85a46	1534	fn[NS] = sn[NS]; dj->lfn = lfn;
jksoft	0:e9f196d85a46	1535	}
jksoft	0:e9f196d85a46	1536
jksoft	0:e9f196d85a46	1537	if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve an SFN + LFN entries. */
jksoft	0:e9f196d85a46	1538	for (ne = 0; lfn[ne]; ne++) ;
jksoft	0:e9f196d85a46	1539	ne = (ne + 25) / 13;
jksoft	0:e9f196d85a46	1540	} else { /* Otherwise reserve only an SFN entry. */
jksoft	0:e9f196d85a46	1541	ne = 1;
jksoft	0:e9f196d85a46	1542	}
jksoft	0:e9f196d85a46	1543
jksoft	0:e9f196d85a46	1544	/* Reserve contiguous entries */
jksoft	0:e9f196d85a46	1545	res = dir_sdi(dj, 0);
jksoft	0:e9f196d85a46	1546	if (res != FR_OK) return res;
jksoft	0:e9f196d85a46	1547	n = is = 0;
jksoft	0:e9f196d85a46	1548	do {
jksoft	0:e9f196d85a46	1549	res = move_window(dj->fs, dj->sect);
jksoft	0:e9f196d85a46	1550	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	1551	c = dj->dir; / Check the entry status */
jksoft	0:e9f196d85a46	1552	if (c == DDE \|\| c == 0) { /* Is it a blank entry? */
jksoft	0:e9f196d85a46	1553	if (n == 0) is = dj->index; /* First index of the contiguous entry */
jksoft	0:e9f196d85a46	1554	if (++n == ne) break; /* A contiguous entry that required count is found */
jksoft	0:e9f196d85a46	1555	} else {
jksoft	0:e9f196d85a46	1556	n = 0; /* Not a blank entry. Restart to search */
jksoft	0:e9f196d85a46	1557	}
jksoft	0:e9f196d85a46	1558	res = dir_next(dj, 1); /* Next entry with table stretch */
jksoft	0:e9f196d85a46	1559	} while (res == FR_OK);
jksoft	0:e9f196d85a46	1560
jksoft	0:e9f196d85a46	1561	if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */
jksoft	0:e9f196d85a46	1562	res = dir_sdi(dj, is);
jksoft	0:e9f196d85a46	1563	if (res == FR_OK) {
jksoft	0:e9f196d85a46	1564	sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */
jksoft	0:e9f196d85a46	1565	ne--;
jksoft	0:e9f196d85a46	1566	do { /* Store LFN entries in bottom first */
jksoft	0:e9f196d85a46	1567	res = move_window(dj->fs, dj->sect);
jksoft	0:e9f196d85a46	1568	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	1569	fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
jksoft	0:e9f196d85a46	1570	dj->fs->wflag = 1;
jksoft	0:e9f196d85a46	1571	res = dir_next(dj, 0); /* Next entry */
jksoft	0:e9f196d85a46	1572	} while (res == FR_OK && --ne);
jksoft	0:e9f196d85a46	1573	}
jksoft	0:e9f196d85a46	1574	}
jksoft	0:e9f196d85a46	1575
jksoft	0:e9f196d85a46	1576	#else /* Non LFN configuration */
jksoft	0:e9f196d85a46	1577	res = dir_sdi(dj, 0);
jksoft	0:e9f196d85a46	1578	if (res == FR_OK) {
jksoft	0:e9f196d85a46	1579	do { /* Find a blank entry for the SFN */
jksoft	0:e9f196d85a46	1580	res = move_window(dj->fs, dj->sect);
jksoft	0:e9f196d85a46	1581	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	1582	c = *dj->dir;
jksoft	0:e9f196d85a46	1583	if (c == DDE \|\| c == 0) break; /* Is it a blank entry? */
jksoft	0:e9f196d85a46	1584	res = dir_next(dj, 1); /* Next entry with table stretch */
jksoft	0:e9f196d85a46	1585	} while (res == FR_OK);
jksoft	0:e9f196d85a46	1586	}
jksoft	0:e9f196d85a46	1587	#endif
jksoft	0:e9f196d85a46	1588
jksoft	0:e9f196d85a46	1589	if (res == FR_OK) { /* Initialize the SFN entry */
jksoft	0:e9f196d85a46	1590	res = move_window(dj->fs, dj->sect);
jksoft	0:e9f196d85a46	1591	if (res == FR_OK) {
jksoft	0:e9f196d85a46	1592	dir = dj->dir;
jksoft	0:e9f196d85a46	1593	mem_set(dir, 0, SZ_DIR); /* Clean the entry */
jksoft	0:e9f196d85a46	1594	mem_cpy(dir, dj->fn, 11); /* Put SFN */
jksoft	0:e9f196d85a46	1595	#if _USE_LFN
jksoft	0:e9f196d85a46	1596	dir[DIR_NTres] = (dj->fn+NS) & (NS_BODY \| NS_EXT); / Put NT flag */
jksoft	0:e9f196d85a46	1597	#endif
jksoft	0:e9f196d85a46	1598	dj->fs->wflag = 1;
jksoft	0:e9f196d85a46	1599	}
jksoft	0:e9f196d85a46	1600	}
jksoft	0:e9f196d85a46	1601
jksoft	0:e9f196d85a46	1602	return res;
jksoft	0:e9f196d85a46	1603	}
jksoft	0:e9f196d85a46	1604	#endif /* !_FS_READONLY */
jksoft	0:e9f196d85a46	1605
jksoft	0:e9f196d85a46	1606
jksoft	0:e9f196d85a46	1607
jksoft	0:e9f196d85a46	1608
jksoft	0:e9f196d85a46	1609	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1610	/* Remove an object from the directory */
jksoft	0:e9f196d85a46	1611	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1612	#if !_FS_READONLY && !_FS_MINIMIZE
jksoft	0:e9f196d85a46	1613	static
jksoft	0:e9f196d85a46	1614	FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
jksoft	0:e9f196d85a46	1615	FATFS_DIR dj / Directory object pointing the entry to be removed */
jksoft	0:e9f196d85a46	1616	)
jksoft	0:e9f196d85a46	1617	{
jksoft	0:e9f196d85a46	1618	FRESULT res;
jksoft	0:e9f196d85a46	1619	#if _USE_LFN /* LFN configuration */
jksoft	0:e9f196d85a46	1620	WORD i;
jksoft	0:e9f196d85a46	1621
jksoft	0:e9f196d85a46	1622	i = dj->index; /* SFN index */
jksoft	0:e9f196d85a46	1623	res = dir_sdi(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */
jksoft	0:e9f196d85a46	1624	if (res == FR_OK) {
jksoft	0:e9f196d85a46	1625	do {
jksoft	0:e9f196d85a46	1626	res = move_window(dj->fs, dj->sect);
jksoft	0:e9f196d85a46	1627	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	1628	dj->dir = DDE; / Mark the entry "deleted" */
jksoft	0:e9f196d85a46	1629	dj->fs->wflag = 1;
jksoft	0:e9f196d85a46	1630	if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
jksoft	0:e9f196d85a46	1631	res = dir_next(dj, 0); /* Next entry */
jksoft	0:e9f196d85a46	1632	} while (res == FR_OK);
jksoft	0:e9f196d85a46	1633	if (res == FR_NO_FILE) res = FR_INT_ERR;
jksoft	0:e9f196d85a46	1634	}
jksoft	0:e9f196d85a46	1635
jksoft	0:e9f196d85a46	1636	#else /* Non LFN configuration */
jksoft	0:e9f196d85a46	1637	res = dir_sdi(dj, dj->index);
jksoft	0:e9f196d85a46	1638	if (res == FR_OK) {
jksoft	0:e9f196d85a46	1639	res = move_window(dj->fs, dj->sect);
jksoft	0:e9f196d85a46	1640	if (res == FR_OK) {
jksoft	0:e9f196d85a46	1641	dj->dir = DDE; / Mark the entry "deleted" */
jksoft	0:e9f196d85a46	1642	dj->fs->wflag = 1;
jksoft	0:e9f196d85a46	1643	}
jksoft	0:e9f196d85a46	1644	}
jksoft	0:e9f196d85a46	1645	#endif
jksoft	0:e9f196d85a46	1646
jksoft	0:e9f196d85a46	1647	return res;
jksoft	0:e9f196d85a46	1648	}
jksoft	0:e9f196d85a46	1649	#endif /* !_FS_READONLY */
jksoft	0:e9f196d85a46	1650
jksoft	0:e9f196d85a46	1651
jksoft	0:e9f196d85a46	1652
jksoft	0:e9f196d85a46	1653
jksoft	0:e9f196d85a46	1654	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1655	/* Pick a segment and create the object name in directory form */
jksoft	0:e9f196d85a46	1656	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1657
jksoft	0:e9f196d85a46	1658	static
jksoft	0:e9f196d85a46	1659	FRESULT create_name (
jksoft	0:e9f196d85a46	1660	FATFS_DIR dj, / Pointer to the directory object */
jksoft	0:e9f196d85a46	1661	const TCHAR *path / Pointer to pointer to the segment in the path string */
jksoft	0:e9f196d85a46	1662	)
jksoft	0:e9f196d85a46	1663	{
jksoft	0:e9f196d85a46	1664	#ifdef _EXCVT
jksoft	0:e9f196d85a46	1665	static const BYTE excvt[] = _EXCVT; /* Upper conversion table for extended chars */
jksoft	0:e9f196d85a46	1666	#endif
jksoft	0:e9f196d85a46	1667
jksoft	0:e9f196d85a46	1668	#if _USE_LFN /* LFN configuration */
jksoft	0:e9f196d85a46	1669	BYTE b, cf;
jksoft	0:e9f196d85a46	1670	WCHAR w, *lfn;
jksoft	0:e9f196d85a46	1671	UINT i, ni, si, di;
jksoft	0:e9f196d85a46	1672	const TCHAR *p;
jksoft	0:e9f196d85a46	1673
jksoft	0:e9f196d85a46	1674	/* Create LFN in Unicode */
jksoft	0:e9f196d85a46	1675	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
jksoft	0:e9f196d85a46	1676	lfn = dj->lfn;
jksoft	0:e9f196d85a46	1677	si = di = 0;
jksoft	0:e9f196d85a46	1678	for (;;) {
jksoft	0:e9f196d85a46	1679	w = p[si++]; /* Get a character */
jksoft	0:e9f196d85a46	1680	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
jksoft	0:e9f196d85a46	1681	if (di >= _MAX_LFN) /* Reject too long name */
jksoft	0:e9f196d85a46	1682	return FR_INVALID_NAME;
jksoft	0:e9f196d85a46	1683	#if !_LFN_UNICODE
jksoft	0:e9f196d85a46	1684	w &= 0xFF;
jksoft	0:e9f196d85a46	1685	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
jksoft	0:e9f196d85a46	1686	b = (BYTE)p[si++]; /* Get 2nd byte */
jksoft	0:e9f196d85a46	1687	if (!IsDBCS2(b))
jksoft	0:e9f196d85a46	1688	return FR_INVALID_NAME; /* Reject invalid sequence */
jksoft	0:e9f196d85a46	1689	w = (w << 8) + b; /* Create a DBC */
jksoft	0:e9f196d85a46	1690	}
jksoft	0:e9f196d85a46	1691	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
jksoft	0:e9f196d85a46	1692	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
jksoft	0:e9f196d85a46	1693	#endif
jksoft	0:e9f196d85a46	1694	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal chars for LFN */
jksoft	0:e9f196d85a46	1695	return FR_INVALID_NAME;
jksoft	0:e9f196d85a46	1696	lfn[di++] = w; /* Store the Unicode char */
jksoft	0:e9f196d85a46	1697	}
jksoft	0:e9f196d85a46	1698	path = &p[si]; / Return pointer to the next segment */
jksoft	0:e9f196d85a46	1699	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
jksoft	0:e9f196d85a46	1700	#if _FS_RPATH
jksoft	0:e9f196d85a46	1701	if ((di == 1 && lfn[di-1] == '.') \|\| /* Is this a dot entry? */
jksoft	0:e9f196d85a46	1702	(di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
jksoft	0:e9f196d85a46	1703	lfn[di] = 0;
jksoft	0:e9f196d85a46	1704	for (i = 0; i < 11; i++)
jksoft	0:e9f196d85a46	1705	dj->fn[i] = (i < di) ? '.' : ' ';
jksoft	0:e9f196d85a46	1706	dj->fn[i] = cf \| NS_DOT; /* This is a dot entry */
jksoft	0:e9f196d85a46	1707	return FR_OK;
jksoft	0:e9f196d85a46	1708	}
jksoft	0:e9f196d85a46	1709	#endif
jksoft	0:e9f196d85a46	1710	while (di) { /* Strip trailing spaces and dots */
jksoft	0:e9f196d85a46	1711	w = lfn[di-1];
jksoft	0:e9f196d85a46	1712	if (w != ' ' && w != '.') break;
jksoft	0:e9f196d85a46	1713	di--;
jksoft	0:e9f196d85a46	1714	}
jksoft	0:e9f196d85a46	1715	if (!di) return FR_INVALID_NAME; /* Reject nul string */
jksoft	0:e9f196d85a46	1716
jksoft	0:e9f196d85a46	1717	lfn[di] = 0; /* LFN is created */
jksoft	0:e9f196d85a46	1718
jksoft	0:e9f196d85a46	1719	/* Create SFN in directory form */
jksoft	0:e9f196d85a46	1720	mem_set(dj->fn, ' ', 11);
jksoft	0:e9f196d85a46	1721	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
jksoft	0:e9f196d85a46	1722	if (si) cf \|= NS_LOSS \| NS_LFN;
jksoft	0:e9f196d85a46	1723	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
jksoft	0:e9f196d85a46	1724
jksoft	0:e9f196d85a46	1725	b = i = 0; ni = 8;
jksoft	0:e9f196d85a46	1726	for (;;) {
jksoft	0:e9f196d85a46	1727	w = lfn[si++]; /* Get an LFN char */
jksoft	0:e9f196d85a46	1728	if (!w) break; /* Break on end of the LFN */
jksoft	0:e9f196d85a46	1729	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
jksoft	0:e9f196d85a46	1730	cf \|= NS_LOSS \| NS_LFN; continue;
jksoft	0:e9f196d85a46	1731	}
jksoft	0:e9f196d85a46	1732
jksoft	0:e9f196d85a46	1733	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
jksoft	0:e9f196d85a46	1734	if (ni == 11) { /* Long extension */
jksoft	0:e9f196d85a46	1735	cf \|= NS_LOSS \| NS_LFN; break;
jksoft	0:e9f196d85a46	1736	}
jksoft	0:e9f196d85a46	1737	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
jksoft	0:e9f196d85a46	1738	if (si > di) break; /* No extension */
jksoft	0:e9f196d85a46	1739	si = di; i = 8; ni = 11; /* Enter extension section */
jksoft	0:e9f196d85a46	1740	b <<= 2; continue;
jksoft	0:e9f196d85a46	1741	}
jksoft	0:e9f196d85a46	1742
jksoft	0:e9f196d85a46	1743	if (w >= 0x80) { /* Non ASCII char */
jksoft	0:e9f196d85a46	1744	#ifdef _EXCVT
jksoft	0:e9f196d85a46	1745	w = ff_convert(w, 0); /* Unicode -> OEM code */
jksoft	0:e9f196d85a46	1746	if (w) w = excvt[w - 0x80]; /* Convert extended char to upper (SBCS) */
jksoft	0:e9f196d85a46	1747	#else
jksoft	0:e9f196d85a46	1748	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
jksoft	0:e9f196d85a46	1749	#endif
jksoft	0:e9f196d85a46	1750	cf \|= NS_LFN; /* Force create LFN entry */
jksoft	0:e9f196d85a46	1751	}
jksoft	0:e9f196d85a46	1752
jksoft	0:e9f196d85a46	1753	if (_DF1S && w >= 0x100) { /* Double byte char (always false on SBCS cfg) */
jksoft	0:e9f196d85a46	1754	if (i >= ni - 1) {
jksoft	0:e9f196d85a46	1755	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
jksoft	0:e9f196d85a46	1756	}
jksoft	0:e9f196d85a46	1757	dj->fn[i++] = (BYTE)(w >> 8);
jksoft	0:e9f196d85a46	1758	} else { /* Single byte char */
jksoft	0:e9f196d85a46	1759	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal chars for SFN */
jksoft	0:e9f196d85a46	1760	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
jksoft	0:e9f196d85a46	1761	} else {
jksoft	0:e9f196d85a46	1762	if (IsUpper(w)) { /* ASCII large capital */
jksoft	0:e9f196d85a46	1763	b \|= 2;
jksoft	0:e9f196d85a46	1764	} else {
jksoft	0:e9f196d85a46	1765	if (IsLower(w)) { /* ASCII small capital */
jksoft	0:e9f196d85a46	1766	b \|= 1; w -= 0x20;
jksoft	0:e9f196d85a46	1767	}
jksoft	0:e9f196d85a46	1768	}
jksoft	0:e9f196d85a46	1769	}
jksoft	0:e9f196d85a46	1770	}
jksoft	0:e9f196d85a46	1771	dj->fn[i++] = (BYTE)w;
jksoft	0:e9f196d85a46	1772	}
jksoft	0:e9f196d85a46	1773
jksoft	0:e9f196d85a46	1774	if (dj->fn[0] == DDE) dj->fn[0] = NDDE; /* If the first char collides with deleted mark, replace it with 0x05 */
jksoft	0:e9f196d85a46	1775
jksoft	0:e9f196d85a46	1776	if (ni == 8) b <<= 2;
jksoft	0:e9f196d85a46	1777	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
jksoft	0:e9f196d85a46	1778	cf \|= NS_LFN;
jksoft	0:e9f196d85a46	1779	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */
jksoft	0:e9f196d85a46	1780	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
jksoft	0:e9f196d85a46	1781	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
jksoft	0:e9f196d85a46	1782	}
jksoft	0:e9f196d85a46	1783
jksoft	0:e9f196d85a46	1784	dj->fn[NS] = cf; /* SFN is created */
jksoft	0:e9f196d85a46	1785
jksoft	0:e9f196d85a46	1786	return FR_OK;
jksoft	0:e9f196d85a46	1787
jksoft	0:e9f196d85a46	1788
jksoft	0:e9f196d85a46	1789	#else /* Non-LFN configuration */
jksoft	0:e9f196d85a46	1790	BYTE b, c, d, *sfn;
jksoft	0:e9f196d85a46	1791	UINT ni, si, i;
jksoft	0:e9f196d85a46	1792	const char *p;
jksoft	0:e9f196d85a46	1793
jksoft	0:e9f196d85a46	1794	/* Create file name in directory form */
jksoft	0:e9f196d85a46	1795	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
jksoft	0:e9f196d85a46	1796	sfn = dj->fn;
jksoft	0:e9f196d85a46	1797	mem_set(sfn, ' ', 11);
jksoft	0:e9f196d85a46	1798	si = i = b = 0; ni = 8;
jksoft	0:e9f196d85a46	1799	#if _FS_RPATH
jksoft	0:e9f196d85a46	1800	if (p[si] == '.') { /* Is this a dot entry? */
jksoft	0:e9f196d85a46	1801	for (;;) {
jksoft	0:e9f196d85a46	1802	c = (BYTE)p[si++];
jksoft	0:e9f196d85a46	1803	if (c != '.' \|\| si >= 3) break;
jksoft	0:e9f196d85a46	1804	sfn[i++] = c;
jksoft	0:e9f196d85a46	1805	}
jksoft	0:e9f196d85a46	1806	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
jksoft	0:e9f196d85a46	1807	path = &p[si]; / Return pointer to the next segment */
jksoft	0:e9f196d85a46	1808	sfn[NS] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
jksoft	0:e9f196d85a46	1809	return FR_OK;
jksoft	0:e9f196d85a46	1810	}
jksoft	0:e9f196d85a46	1811	#endif
jksoft	0:e9f196d85a46	1812	for (;;) {
jksoft	0:e9f196d85a46	1813	c = (BYTE)p[si++];
jksoft	0:e9f196d85a46	1814	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
jksoft	0:e9f196d85a46	1815	if (c == '.' \|\| i >= ni) {
jksoft	0:e9f196d85a46	1816	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
jksoft	0:e9f196d85a46	1817	i = 8; ni = 11;
jksoft	0:e9f196d85a46	1818	b <<= 2; continue;
jksoft	0:e9f196d85a46	1819	}
jksoft	0:e9f196d85a46	1820	if (c >= 0x80) { /* Extended char? */
jksoft	0:e9f196d85a46	1821	b \|= 3; /* Eliminate NT flag */
jksoft	0:e9f196d85a46	1822	#ifdef _EXCVT
jksoft	0:e9f196d85a46	1823	c = excvt[c - 0x80]; /* Upper conversion (SBCS) */
jksoft	0:e9f196d85a46	1824	#else
jksoft	0:e9f196d85a46	1825	#if !_DF1S /* ASCII only cfg */
jksoft	0:e9f196d85a46	1826	return FR_INVALID_NAME;
jksoft	0:e9f196d85a46	1827	#endif
jksoft	0:e9f196d85a46	1828	#endif
jksoft	0:e9f196d85a46	1829	}
jksoft	0:e9f196d85a46	1830	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
jksoft	0:e9f196d85a46	1831	d = (BYTE)p[si++]; /* Get 2nd byte */
jksoft	0:e9f196d85a46	1832	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
jksoft	0:e9f196d85a46	1833	return FR_INVALID_NAME;
jksoft	0:e9f196d85a46	1834	sfn[i++] = c;
jksoft	0:e9f196d85a46	1835	sfn[i++] = d;
jksoft	0:e9f196d85a46	1836	} else { /* Single byte code */
jksoft	0:e9f196d85a46	1837	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
jksoft	0:e9f196d85a46	1838	return FR_INVALID_NAME;
jksoft	0:e9f196d85a46	1839	if (IsUpper(c)) { /* ASCII large capital? */
jksoft	0:e9f196d85a46	1840	b \|= 2;
jksoft	0:e9f196d85a46	1841	} else {
jksoft	0:e9f196d85a46	1842	if (IsLower(c)) { /* ASCII small capital? */
jksoft	0:e9f196d85a46	1843	b \|= 1; c -= 0x20;
jksoft	0:e9f196d85a46	1844	}
jksoft	0:e9f196d85a46	1845	}
jksoft	0:e9f196d85a46	1846	sfn[i++] = c;
jksoft	0:e9f196d85a46	1847	}
jksoft	0:e9f196d85a46	1848	}
jksoft	0:e9f196d85a46	1849	path = &p[si]; / Return pointer to the next segment */
jksoft	0:e9f196d85a46	1850	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
jksoft	0:e9f196d85a46	1851
jksoft	0:e9f196d85a46	1852	if (!i) return FR_INVALID_NAME; /* Reject nul string */
jksoft	0:e9f196d85a46	1853	if (sfn[0] == DDE) sfn[0] = NDDE; /* When first char collides with DDE, replace it with 0x05 */
jksoft	0:e9f196d85a46	1854
jksoft	0:e9f196d85a46	1855	if (ni == 8) b <<= 2;
jksoft	0:e9f196d85a46	1856	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
jksoft	0:e9f196d85a46	1857	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
jksoft	0:e9f196d85a46	1858
jksoft	0:e9f196d85a46	1859	sfn[NS] = c; /* Store NT flag, File name is created */
jksoft	0:e9f196d85a46	1860
jksoft	0:e9f196d85a46	1861	return FR_OK;
jksoft	0:e9f196d85a46	1862	#endif
jksoft	0:e9f196d85a46	1863	}
jksoft	0:e9f196d85a46	1864
jksoft	0:e9f196d85a46	1865
jksoft	0:e9f196d85a46	1866
jksoft	0:e9f196d85a46	1867
jksoft	0:e9f196d85a46	1868	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1869	/* Get file information from directory entry */
jksoft	0:e9f196d85a46	1870	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1871	#if _FS_MINIMIZE <= 1
jksoft	0:e9f196d85a46	1872	static
jksoft	0:e9f196d85a46	1873	void get_fileinfo ( /* No return code */
jksoft	0:e9f196d85a46	1874	FATFS_DIR dj, / Pointer to the directory object */
jksoft	0:e9f196d85a46	1875	FILINFO fno / Pointer to the file information to be filled */
jksoft	0:e9f196d85a46	1876	)
jksoft	0:e9f196d85a46	1877	{
jksoft	0:e9f196d85a46	1878	UINT i;
jksoft	0:e9f196d85a46	1879	BYTE nt, *dir;
jksoft	0:e9f196d85a46	1880	TCHAR *p, c;
jksoft	0:e9f196d85a46	1881
jksoft	0:e9f196d85a46	1882
jksoft	0:e9f196d85a46	1883	p = fno->fname;
jksoft	0:e9f196d85a46	1884	if (dj->sect) {
jksoft	0:e9f196d85a46	1885	dir = dj->dir;
jksoft	0:e9f196d85a46	1886	nt = dir[DIR_NTres]; /* NT flag */
jksoft	0:e9f196d85a46	1887	for (i = 0; i < 8; i++) { /* Copy name body */
jksoft	0:e9f196d85a46	1888	c = dir[i];
jksoft	0:e9f196d85a46	1889	if (c == ' ') break;
jksoft	0:e9f196d85a46	1890	if (c == NDDE) c = (TCHAR)DDE;
jksoft	0:e9f196d85a46	1891	if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
jksoft	0:e9f196d85a46	1892	#if _LFN_UNICODE
jksoft	0:e9f196d85a46	1893	if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i+1]))
jksoft	0:e9f196d85a46	1894	c = (c << 8) \| dir[++i];
jksoft	0:e9f196d85a46	1895	c = ff_convert(c, 1);
jksoft	0:e9f196d85a46	1896	if (!c) c = '?';
jksoft	0:e9f196d85a46	1897	#endif
jksoft	0:e9f196d85a46	1898	*p++ = c;
jksoft	0:e9f196d85a46	1899	}
jksoft	0:e9f196d85a46	1900	if (dir[8] != ' ') { /* Copy name extension */
jksoft	0:e9f196d85a46	1901	*p++ = '.';
jksoft	0:e9f196d85a46	1902	for (i = 8; i < 11; i++) {
jksoft	0:e9f196d85a46	1903	c = dir[i];
jksoft	0:e9f196d85a46	1904	if (c == ' ') break;
jksoft	0:e9f196d85a46	1905	if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
jksoft	0:e9f196d85a46	1906	#if _LFN_UNICODE
jksoft	0:e9f196d85a46	1907	if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i+1]))
jksoft	0:e9f196d85a46	1908	c = (c << 8) \| dir[++i];
jksoft	0:e9f196d85a46	1909	c = ff_convert(c, 1);
jksoft	0:e9f196d85a46	1910	if (!c) c = '?';
jksoft	0:e9f196d85a46	1911	#endif
jksoft	0:e9f196d85a46	1912	*p++ = c;
jksoft	0:e9f196d85a46	1913	}
jksoft	0:e9f196d85a46	1914	}
jksoft	0:e9f196d85a46	1915	fno->fattrib = dir[DIR_Attr]; /* Attribute */
jksoft	0:e9f196d85a46	1916	fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
jksoft	0:e9f196d85a46	1917	fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
jksoft	0:e9f196d85a46	1918	fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
jksoft	0:e9f196d85a46	1919	}
jksoft	0:e9f196d85a46	1920	p = 0; / Terminate SFN str by a \0 */
jksoft	0:e9f196d85a46	1921
jksoft	0:e9f196d85a46	1922	#if _USE_LFN
jksoft	0:e9f196d85a46	1923	if (fno->lfname && fno->lfsize) {
jksoft	0:e9f196d85a46	1924	TCHAR *tp = fno->lfname;
jksoft	0:e9f196d85a46	1925	WCHAR w, *lfn;
jksoft	0:e9f196d85a46	1926
jksoft	0:e9f196d85a46	1927	i = 0;
jksoft	0:e9f196d85a46	1928	if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
jksoft	0:e9f196d85a46	1929	lfn = dj->lfn;
jksoft	0:e9f196d85a46	1930	while ((w = lfn++) != 0) { / Get an LFN char */
jksoft	0:e9f196d85a46	1931	#if !_LFN_UNICODE
jksoft	0:e9f196d85a46	1932	w = ff_convert(w, 0); /* Unicode -> OEM conversion */
jksoft	0:e9f196d85a46	1933	if (!w) { i = 0; break; } /* Could not convert, no LFN */
jksoft	0:e9f196d85a46	1934	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
jksoft	0:e9f196d85a46	1935	tp[i++] = (TCHAR)(w >> 8);
jksoft	0:e9f196d85a46	1936	#endif
jksoft	0:e9f196d85a46	1937	if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overflow, no LFN */
jksoft	0:e9f196d85a46	1938	tp[i++] = (TCHAR)w;
jksoft	0:e9f196d85a46	1939	}
jksoft	0:e9f196d85a46	1940	}
jksoft	0:e9f196d85a46	1941	tp[i] = 0; /* Terminate the LFN str by a \0 */
jksoft	0:e9f196d85a46	1942	}
jksoft	0:e9f196d85a46	1943	#endif
jksoft	0:e9f196d85a46	1944	}
jksoft	0:e9f196d85a46	1945	#endif /* _FS_MINIMIZE <= 1 */
jksoft	0:e9f196d85a46	1946
jksoft	0:e9f196d85a46	1947
jksoft	0:e9f196d85a46	1948
jksoft	0:e9f196d85a46	1949
jksoft	0:e9f196d85a46	1950	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1951	/* Follow a file path */
jksoft	0:e9f196d85a46	1952	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	1953
jksoft	0:e9f196d85a46	1954	static
jksoft	0:e9f196d85a46	1955	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
jksoft	0:e9f196d85a46	1956	FATFS_DIR dj, / Directory object to return last directory and found object */
jksoft	0:e9f196d85a46	1957	const TCHAR path / Full-path string to find a file or directory */
jksoft	0:e9f196d85a46	1958	)
jksoft	0:e9f196d85a46	1959	{
jksoft	0:e9f196d85a46	1960	FRESULT res;
jksoft	0:e9f196d85a46	1961	BYTE *dir, ns;
jksoft	0:e9f196d85a46	1962
jksoft	0:e9f196d85a46	1963
jksoft	0:e9f196d85a46	1964	#if _FS_RPATH
jksoft	0:e9f196d85a46	1965	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
jksoft	0:e9f196d85a46	1966	path++; dj->sclust = 0; /* Strip it and start from the root dir */
jksoft	0:e9f196d85a46	1967	} else { /* No heading separator */
jksoft	0:e9f196d85a46	1968	dj->sclust = dj->fs->cdir; /* Start from the current dir */
jksoft	0:e9f196d85a46	1969	}
jksoft	0:e9f196d85a46	1970	#else
jksoft	0:e9f196d85a46	1971	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
jksoft	0:e9f196d85a46	1972	path++;
jksoft	0:e9f196d85a46	1973	dj->sclust = 0; /* Start from the root dir */
jksoft	0:e9f196d85a46	1974	#endif
jksoft	0:e9f196d85a46	1975
jksoft	0:e9f196d85a46	1976	if ((UINT)path < ' ') { / Nul path means the start directory itself */
jksoft	0:e9f196d85a46	1977	res = dir_sdi(dj, 0);
jksoft	0:e9f196d85a46	1978	dj->dir = 0;
jksoft	0:e9f196d85a46	1979	} else { /* Follow path */
jksoft	0:e9f196d85a46	1980	for (;;) {
jksoft	0:e9f196d85a46	1981	res = create_name(dj, &path); /* Get a segment */
jksoft	0:e9f196d85a46	1982	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	1983	res = dir_find(dj); /* Find it */
jksoft	0:e9f196d85a46	1984	ns = *(dj->fn+NS);
jksoft	0:e9f196d85a46	1985	if (res != FR_OK) { /* Failed to find the object */
jksoft	0:e9f196d85a46	1986	if (res != FR_NO_FILE) break; /* Abort if any hard error occurred */
jksoft	0:e9f196d85a46	1987	/* Object not found */
jksoft	0:e9f196d85a46	1988	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exit */
jksoft	0:e9f196d85a46	1989	dj->sclust = 0; dj->dir = 0; /* It is the root dir */
jksoft	0:e9f196d85a46	1990	res = FR_OK;
jksoft	0:e9f196d85a46	1991	if (!(ns & NS_LAST)) continue;
jksoft	0:e9f196d85a46	1992	} else { /* Could not find the object */
jksoft	0:e9f196d85a46	1993	if (!(ns & NS_LAST)) res = FR_NO_PATH;
jksoft	0:e9f196d85a46	1994	}
jksoft	0:e9f196d85a46	1995	break;
jksoft	0:e9f196d85a46	1996	}
jksoft	0:e9f196d85a46	1997	if (ns & NS_LAST) break; /* Last segment match. Function completed. */
jksoft	0:e9f196d85a46	1998	dir = dj->dir; /* There is next segment. Follow the sub directory */
jksoft	0:e9f196d85a46	1999	if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
jksoft	0:e9f196d85a46	2000	res = FR_NO_PATH; break;
jksoft	0:e9f196d85a46	2001	}
jksoft	0:e9f196d85a46	2002	dj->sclust = ld_clust(dj->fs, dir);
jksoft	0:e9f196d85a46	2003	}
jksoft	0:e9f196d85a46	2004	}
jksoft	0:e9f196d85a46	2005
jksoft	0:e9f196d85a46	2006	return res;
jksoft	0:e9f196d85a46	2007	}
jksoft	0:e9f196d85a46	2008
jksoft	0:e9f196d85a46	2009
jksoft	0:e9f196d85a46	2010
jksoft	0:e9f196d85a46	2011
jksoft	0:e9f196d85a46	2012	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2013	/* Load a sector and check if it is an FAT Volume Boot Record */
jksoft	0:e9f196d85a46	2014	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2015
jksoft	0:e9f196d85a46	2016	static
jksoft	0:e9f196d85a46	2017	BYTE check_fs ( /* 0:FAT-VBR, 1:Any BR but not FAT, 2:Not a BR, 3:Disk error */
jksoft	0:e9f196d85a46	2018	FATFS fs, / File system object */
jksoft	0:e9f196d85a46	2019	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
jksoft	0:e9f196d85a46	2020	)
jksoft	0:e9f196d85a46	2021	{
jksoft	0:e9f196d85a46	2022	if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK) /* Load boot record */
jksoft	0:e9f196d85a46	2023	return 3;
jksoft	0:e9f196d85a46	2024	if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
jksoft	0:e9f196d85a46	2025	return 2;
jksoft	0:e9f196d85a46	2026
jksoft	0:e9f196d85a46	2027	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
jksoft	0:e9f196d85a46	2028	return 0;
jksoft	0:e9f196d85a46	2029	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
jksoft	0:e9f196d85a46	2030	return 0;
jksoft	0:e9f196d85a46	2031
jksoft	0:e9f196d85a46	2032	return 1;
jksoft	0:e9f196d85a46	2033	}
jksoft	0:e9f196d85a46	2034
jksoft	0:e9f196d85a46	2035
jksoft	0:e9f196d85a46	2036
jksoft	0:e9f196d85a46	2037
jksoft	0:e9f196d85a46	2038	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2039	/* Check if the file system object is valid or not */
jksoft	0:e9f196d85a46	2040	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2041
jksoft	0:e9f196d85a46	2042	static
jksoft	0:e9f196d85a46	2043	FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occurred */
jksoft	0:e9f196d85a46	2044	const TCHAR *path, / Pointer to pointer to the path name (drive number) */
jksoft	0:e9f196d85a46	2045	FATFS *rfs, / Pointer to pointer to the found file system object */
jksoft	0:e9f196d85a46	2046	BYTE wmode /* !=0: Check write protection for write access */
jksoft	0:e9f196d85a46	2047	)
jksoft	0:e9f196d85a46	2048	{
jksoft	0:e9f196d85a46	2049	BYTE fmt, b, pi, *tbl;
jksoft	0:e9f196d85a46	2050	UINT vol;
jksoft	0:e9f196d85a46	2051	DSTATUS stat;
jksoft	0:e9f196d85a46	2052	DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
jksoft	0:e9f196d85a46	2053	WORD nrsv;
jksoft	0:e9f196d85a46	2054	const TCHAR p = path;
jksoft	0:e9f196d85a46	2055	FATFS *fs;
jksoft	0:e9f196d85a46	2056
jksoft	0:e9f196d85a46	2057
jksoft	0:e9f196d85a46	2058	/* Get logical drive number from the path name */
jksoft	0:e9f196d85a46	2059	vol = p[0] - '0'; /* Is there a drive number? */
jksoft	0:e9f196d85a46	2060	if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */
jksoft	0:e9f196d85a46	2061	p += 2; path = p; / Return pointer to the path name */
jksoft	0:e9f196d85a46	2062	} else { /* No drive number is given */
jksoft	0:e9f196d85a46	2063	#if _FS_RPATH
jksoft	0:e9f196d85a46	2064	vol = CurrVol; /* Use current drive */
jksoft	0:e9f196d85a46	2065	#else
jksoft	0:e9f196d85a46	2066	vol = 0; /* Use drive 0 */
jksoft	0:e9f196d85a46	2067	#endif
jksoft	0:e9f196d85a46	2068	}
jksoft	0:e9f196d85a46	2069
jksoft	0:e9f196d85a46	2070	/* Check if the file system object is valid or not */
jksoft	0:e9f196d85a46	2071	*rfs = 0;
jksoft	0:e9f196d85a46	2072	if (vol >= _VOLUMES) /* Is the drive number valid? */
jksoft	0:e9f196d85a46	2073	return FR_INVALID_DRIVE;
jksoft	0:e9f196d85a46	2074	fs = FatFs[vol]; /* Get corresponding file system object */
jksoft	0:e9f196d85a46	2075	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
jksoft	0:e9f196d85a46	2076
jksoft	0:e9f196d85a46	2077	ENTER_FF(fs); /* Lock file system */
jksoft	0:e9f196d85a46	2078
jksoft	0:e9f196d85a46	2079	rfs = fs; / Return pointer to the corresponding file system object */
jksoft	0:e9f196d85a46	2080	if (fs->fs_type) { /* If the volume has been mounted */
jksoft	0:e9f196d85a46	2081	stat = disk_status(fs->drv);
jksoft	0:e9f196d85a46	2082	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */
jksoft	0:e9f196d85a46	2083	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
jksoft	0:e9f196d85a46	2084	return FR_WRITE_PROTECTED;
jksoft	0:e9f196d85a46	2085	return FR_OK; /* The file system object is valid */
jksoft	0:e9f196d85a46	2086	}
jksoft	0:e9f196d85a46	2087	}
jksoft	0:e9f196d85a46	2088
jksoft	0:e9f196d85a46	2089	/* The file system object is not valid. */
jksoft	0:e9f196d85a46	2090	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
jksoft	0:e9f196d85a46	2091
jksoft	0:e9f196d85a46	2092	fs->fs_type = 0; /* Clear the file system object */
jksoft	0:e9f196d85a46	2093	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
jksoft	0:e9f196d85a46	2094	stat = disk_initialize(fs->drv); /* Initialize the physical drive */
jksoft	0:e9f196d85a46	2095	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
jksoft	0:e9f196d85a46	2096	return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
jksoft	0:e9f196d85a46	2097	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
jksoft	0:e9f196d85a46	2098	return FR_WRITE_PROTECTED;
jksoft	0:e9f196d85a46	2099	#if _MAX_SS != 512 /* Get disk sector size (variable sector size cfg only) */
jksoft	0:e9f196d85a46	2100	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
jksoft	0:e9f196d85a46	2101	return FR_DISK_ERR;
jksoft	0:e9f196d85a46	2102	#endif
jksoft	0:e9f196d85a46	2103	/* Search FAT partition on the drive. Supports only generic partitions, FDISK and SFD. */
jksoft	0:e9f196d85a46	2104	fmt = check_fs(fs, bsect = 0); /* Load sector 0 and check if it is an FAT-VBR (in SFD) */
jksoft	0:e9f196d85a46	2105	if (LD2PT(vol) && !fmt) fmt = 1; /* Force non-SFD if the volume is forced partition */
jksoft	0:e9f196d85a46	2106	if (fmt == 1) { /* Not an FAT-VBR, the physical drive can be partitioned */
jksoft	0:e9f196d85a46	2107	/* Check the partition listed in the partition table */
jksoft	0:e9f196d85a46	2108	pi = LD2PT(vol);
jksoft	0:e9f196d85a46	2109	if (pi) pi--;
jksoft	0:e9f196d85a46	2110	tbl = &fs->win[MBR_Table + pi * SZ_PTE];/* Partition table */
jksoft	0:e9f196d85a46	2111	if (tbl[4]) { /* Is the partition existing? */
jksoft	0:e9f196d85a46	2112	bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
jksoft	0:e9f196d85a46	2113	fmt = check_fs(fs, bsect); /* Check the partition */
jksoft	0:e9f196d85a46	2114	}
jksoft	0:e9f196d85a46	2115	}
jksoft	0:e9f196d85a46	2116	if (fmt == 3) return FR_DISK_ERR;
jksoft	0:e9f196d85a46	2117	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
jksoft	0:e9f196d85a46	2118
jksoft	0:e9f196d85a46	2119	/* An FAT volume is found. Following code initializes the file system object */
jksoft	0:e9f196d85a46	2120
jksoft	0:e9f196d85a46	2121	if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
jksoft	0:e9f196d85a46	2122	return FR_NO_FILESYSTEM;
jksoft	0:e9f196d85a46	2123
jksoft	0:e9f196d85a46	2124	fasize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */
jksoft	0:e9f196d85a46	2125	if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32);
jksoft	0:e9f196d85a46	2126	fs->fsize = fasize;
jksoft	0:e9f196d85a46	2127
jksoft	0:e9f196d85a46	2128	fs->n_fats = b = fs->win[BPB_NumFATs]; /* Number of FAT copies */
jksoft	0:e9f196d85a46	2129	if (b != 1 && b != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
jksoft	0:e9f196d85a46	2130	fasize = b; / Number of sectors for FAT area */
jksoft	0:e9f196d85a46	2131
jksoft	0:e9f196d85a46	2132	fs->csize = b = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
jksoft	0:e9f196d85a46	2133	if (!b \|\| (b & (b - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
jksoft	0:e9f196d85a46	2134
jksoft	0:e9f196d85a46	2135	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Number of root directory entries */
jksoft	0:e9f196d85a46	2136	if (fs->n_rootdir % (SS(fs) / SZ_DIR)) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be sector aligned) */
jksoft	0:e9f196d85a46	2137
jksoft	0:e9f196d85a46	2138	tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */
jksoft	0:e9f196d85a46	2139	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
jksoft	0:e9f196d85a46	2140
jksoft	0:e9f196d85a46	2141	nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt); /* Number of reserved sectors */
jksoft	0:e9f196d85a46	2142	if (!nrsv) return FR_NO_FILESYSTEM; /* (BPB_RsvdSecCnt must not be 0) */
jksoft	0:e9f196d85a46	2143
jksoft	0:e9f196d85a46	2144	/* Determine the FAT sub type */
jksoft	0:e9f196d85a46	2145	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR); /* RSV+FAT+DIR */
jksoft	0:e9f196d85a46	2146	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
jksoft	0:e9f196d85a46	2147	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
jksoft	0:e9f196d85a46	2148	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
jksoft	0:e9f196d85a46	2149	fmt = FS_FAT12;
jksoft	0:e9f196d85a46	2150	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
jksoft	0:e9f196d85a46	2151	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
jksoft	0:e9f196d85a46	2152
jksoft	0:e9f196d85a46	2153	/* Boundaries and Limits */
jksoft	0:e9f196d85a46	2154	fs->n_fatent = nclst + 2; /* Number of FAT entries */
jksoft	0:e9f196d85a46	2155	fs->database = bsect + sysect; /* Data start sector */
jksoft	0:e9f196d85a46	2156	fs->fatbase = bsect + nrsv; /* FAT start sector */
jksoft	0:e9f196d85a46	2157	if (fmt == FS_FAT32) {
jksoft	0:e9f196d85a46	2158	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
jksoft	0:e9f196d85a46	2159	fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
jksoft	0:e9f196d85a46	2160	szbfat = fs->n_fatent * 4; /* (Required FAT size) */
jksoft	0:e9f196d85a46	2161	} else {
jksoft	0:e9f196d85a46	2162	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
jksoft	0:e9f196d85a46	2163	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
jksoft	0:e9f196d85a46	2164	szbfat = (fmt == FS_FAT16) ? /* (Required FAT size) */
jksoft	0:e9f196d85a46	2165	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
jksoft	0:e9f196d85a46	2166	}
jksoft	0:e9f196d85a46	2167	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than required) */
jksoft	0:e9f196d85a46	2168	return FR_NO_FILESYSTEM;
jksoft	0:e9f196d85a46	2169
jksoft	0:e9f196d85a46	2170	#if !_FS_READONLY
jksoft	0:e9f196d85a46	2171	/* Initialize cluster allocation information */
jksoft	0:e9f196d85a46	2172	fs->free_clust = 0xFFFFFFFF;
jksoft	0:e9f196d85a46	2173	fs->last_clust = 0;
jksoft	0:e9f196d85a46	2174
jksoft	0:e9f196d85a46	2175	/* Get fsinfo if available */
jksoft	0:e9f196d85a46	2176	if (fmt == FS_FAT32) {
jksoft	0:e9f196d85a46	2177	fs->fsi_flag = 0;
jksoft	0:e9f196d85a46	2178	fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
jksoft	0:e9f196d85a46	2179	if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK &&
jksoft	0:e9f196d85a46	2180	LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
jksoft	0:e9f196d85a46	2181	LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
jksoft	0:e9f196d85a46	2182	LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
jksoft	0:e9f196d85a46	2183	fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
jksoft	0:e9f196d85a46	2184	fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
jksoft	0:e9f196d85a46	2185	}
jksoft	0:e9f196d85a46	2186	}
jksoft	0:e9f196d85a46	2187	#endif
jksoft	0:e9f196d85a46	2188	fs->fs_type = fmt; /* FAT sub-type */
jksoft	0:e9f196d85a46	2189	fs->id = ++Fsid; /* File system mount ID */
jksoft	0:e9f196d85a46	2190	fs->winsect = 0; /* Invalidate sector cache */
jksoft	0:e9f196d85a46	2191	fs->wflag = 0;
jksoft	0:e9f196d85a46	2192	#if _FS_RPATH
jksoft	0:e9f196d85a46	2193	fs->cdir = 0; /* Current directory (root dir) */
jksoft	0:e9f196d85a46	2194	#endif
jksoft	0:e9f196d85a46	2195	#if _FS_LOCK /* Clear file lock semaphores */
jksoft	0:e9f196d85a46	2196	clear_lock(fs);
jksoft	0:e9f196d85a46	2197	#endif
jksoft	0:e9f196d85a46	2198
jksoft	0:e9f196d85a46	2199	return FR_OK;
jksoft	0:e9f196d85a46	2200	}
jksoft	0:e9f196d85a46	2201
jksoft	0:e9f196d85a46	2202
jksoft	0:e9f196d85a46	2203
jksoft	0:e9f196d85a46	2204
jksoft	0:e9f196d85a46	2205	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2206	/* Check if the file/dir object is valid or not */
jksoft	0:e9f196d85a46	2207	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2208
jksoft	0:e9f196d85a46	2209	static
jksoft	0:e9f196d85a46	2210	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
jksoft	0:e9f196d85a46	2211	void* obj /* Pointer to the object FIL/DIR to check validity */
jksoft	0:e9f196d85a46	2212	)
jksoft	0:e9f196d85a46	2213	{
jksoft	0:e9f196d85a46	2214	FIL *fil;
jksoft	0:e9f196d85a46	2215
jksoft	0:e9f196d85a46	2216
jksoft	0:e9f196d85a46	2217	fil = (FIL)obj; / Assuming offset of fs and id in the FIL/DIR is identical */
jksoft	0:e9f196d85a46	2218	if (!fil->fs \|\| !fil->fs->fs_type \|\| fil->fs->id != fil->id)
jksoft	0:e9f196d85a46	2219	return FR_INVALID_OBJECT;
jksoft	0:e9f196d85a46	2220
jksoft	0:e9f196d85a46	2221	ENTER_FF(fil->fs); /* Lock file system */
jksoft	0:e9f196d85a46	2222
jksoft	0:e9f196d85a46	2223	if (disk_status(fil->fs->drv) & STA_NOINIT)
jksoft	0:e9f196d85a46	2224	return FR_NOT_READY;
jksoft	0:e9f196d85a46	2225
jksoft	0:e9f196d85a46	2226	return FR_OK;
jksoft	0:e9f196d85a46	2227	}
jksoft	0:e9f196d85a46	2228
jksoft	0:e9f196d85a46	2229
jksoft	0:e9f196d85a46	2230
jksoft	0:e9f196d85a46	2231
jksoft	0:e9f196d85a46	2232	/*--------------------------------------------------------------------------
jksoft	0:e9f196d85a46	2233
jksoft	0:e9f196d85a46	2234	Public Functions
jksoft	0:e9f196d85a46	2235
jksoft	0:e9f196d85a46	2236	--------------------------------------------------------------------------*/
jksoft	0:e9f196d85a46	2237
jksoft	0:e9f196d85a46	2238
jksoft	0:e9f196d85a46	2239
jksoft	0:e9f196d85a46	2240	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2241	/* Mount/Unmount a Logical Drive */
jksoft	0:e9f196d85a46	2242	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2243
jksoft	0:e9f196d85a46	2244	FRESULT f_mount (
jksoft	0:e9f196d85a46	2245	BYTE vol, /* Logical drive number to be mounted/unmounted */
jksoft	0:e9f196d85a46	2246	FATFS fs / Pointer to new file system object (NULL for unmount)*/
jksoft	0:e9f196d85a46	2247	)
jksoft	0:e9f196d85a46	2248	{
jksoft	0:e9f196d85a46	2249	FATFS *rfs;
jksoft	0:e9f196d85a46	2250
jksoft	0:e9f196d85a46	2251
jksoft	0:e9f196d85a46	2252	if (vol >= _VOLUMES) /* Check if the drive number is valid */
jksoft	0:e9f196d85a46	2253	return FR_INVALID_DRIVE;
jksoft	0:e9f196d85a46	2254	rfs = FatFs[vol]; /* Get current fs object */
jksoft	0:e9f196d85a46	2255
jksoft	0:e9f196d85a46	2256	if (rfs) {
jksoft	0:e9f196d85a46	2257	#if _FS_LOCK
jksoft	0:e9f196d85a46	2258	clear_lock(rfs);
jksoft	0:e9f196d85a46	2259	#endif
jksoft	0:e9f196d85a46	2260	#if _FS_REENTRANT /* Discard sync object of the current volume */
jksoft	0:e9f196d85a46	2261	if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
jksoft	0:e9f196d85a46	2262	#endif
jksoft	0:e9f196d85a46	2263	rfs->fs_type = 0; /* Clear old fs object */
jksoft	0:e9f196d85a46	2264	}
jksoft	0:e9f196d85a46	2265
jksoft	0:e9f196d85a46	2266	if (fs) {
jksoft	0:e9f196d85a46	2267	fs->fs_type = 0; /* Clear new fs object */
jksoft	0:e9f196d85a46	2268	#if _FS_REENTRANT /* Create sync object for the new volume */
jksoft	0:e9f196d85a46	2269	if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
jksoft	0:e9f196d85a46	2270	#endif
jksoft	0:e9f196d85a46	2271	}
jksoft	0:e9f196d85a46	2272	FatFs[vol] = fs; /* Register new fs object */
jksoft	0:e9f196d85a46	2273
jksoft	0:e9f196d85a46	2274	return FR_OK;
jksoft	0:e9f196d85a46	2275	}
jksoft	0:e9f196d85a46	2276
jksoft	0:e9f196d85a46	2277
jksoft	0:e9f196d85a46	2278
jksoft	0:e9f196d85a46	2279
jksoft	0:e9f196d85a46	2280	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2281	/* Open or Create a File */
jksoft	0:e9f196d85a46	2282	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2283
jksoft	0:e9f196d85a46	2284	FRESULT f_open (
jksoft	0:e9f196d85a46	2285	FIL fp, / Pointer to the blank file object */
jksoft	0:e9f196d85a46	2286	const TCHAR path, / Pointer to the file name */
jksoft	0:e9f196d85a46	2287	BYTE mode /* Access mode and file open mode flags */
jksoft	0:e9f196d85a46	2288	)
jksoft	0:e9f196d85a46	2289	{
jksoft	0:e9f196d85a46	2290	FRESULT res;
jksoft	0:e9f196d85a46	2291	FATFS_DIR dj;
jksoft	0:e9f196d85a46	2292	BYTE *dir;
jksoft	0:e9f196d85a46	2293	DEF_NAMEBUF;
jksoft	0:e9f196d85a46	2294
jksoft	0:e9f196d85a46	2295
jksoft	0:e9f196d85a46	2296	if (!fp) return FR_INVALID_OBJECT;
jksoft	0:e9f196d85a46	2297	fp->fs = 0; /* Clear file object */
jksoft	0:e9f196d85a46	2298
jksoft	0:e9f196d85a46	2299	#if !_FS_READONLY
jksoft	0:e9f196d85a46	2300	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
jksoft	0:e9f196d85a46	2301	res = chk_mounted(&path, &dj.fs, (BYTE)(mode & ~FA_READ));
jksoft	0:e9f196d85a46	2302	#else
jksoft	0:e9f196d85a46	2303	mode &= FA_READ;
jksoft	0:e9f196d85a46	2304	res = chk_mounted(&path, &dj.fs, 0);
jksoft	0:e9f196d85a46	2305	#endif
jksoft	0:e9f196d85a46	2306	if (res == FR_OK) {
jksoft	0:e9f196d85a46	2307	INIT_BUF(dj);
jksoft	0:e9f196d85a46	2308	res = follow_path(&dj, path); /* Follow the file path */
jksoft	0:e9f196d85a46	2309	dir = dj.dir;
jksoft	0:e9f196d85a46	2310	#if !_FS_READONLY /* R/W configuration */
jksoft	0:e9f196d85a46	2311	if (res == FR_OK) {
jksoft	0:e9f196d85a46	2312	if (!dir) /* Current dir itself */
jksoft	0:e9f196d85a46	2313	res = FR_INVALID_NAME;
jksoft	0:e9f196d85a46	2314	#if _FS_LOCK
jksoft	0:e9f196d85a46	2315	else
jksoft	0:e9f196d85a46	2316	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
jksoft	0:e9f196d85a46	2317	#endif
jksoft	0:e9f196d85a46	2318	}
jksoft	0:e9f196d85a46	2319	/* Create or Open a file */
jksoft	0:e9f196d85a46	2320	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
jksoft	0:e9f196d85a46	2321	DWORD dw, cl;
jksoft	0:e9f196d85a46	2322
jksoft	0:e9f196d85a46	2323	if (res != FR_OK) { /* No file, create new */
jksoft	0:e9f196d85a46	2324	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
jksoft	0:e9f196d85a46	2325	#if _FS_LOCK
jksoft	0:e9f196d85a46	2326	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
jksoft	0:e9f196d85a46	2327	#else
jksoft	0:e9f196d85a46	2328	res = dir_register(&dj);
jksoft	0:e9f196d85a46	2329	#endif
jksoft	0:e9f196d85a46	2330	mode \|= FA_CREATE_ALWAYS; /* File is created */
jksoft	0:e9f196d85a46	2331	dir = dj.dir; /* New entry */
jksoft	0:e9f196d85a46	2332	}
jksoft	0:e9f196d85a46	2333	else { /* Any object is already existing */
jksoft	0:e9f196d85a46	2334	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */
jksoft	0:e9f196d85a46	2335	res = FR_DENIED;
jksoft	0:e9f196d85a46	2336	} else {
jksoft	0:e9f196d85a46	2337	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
jksoft	0:e9f196d85a46	2338	res = FR_EXIST;
jksoft	0:e9f196d85a46	2339	}
jksoft	0:e9f196d85a46	2340	}
jksoft	0:e9f196d85a46	2341	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
jksoft	0:e9f196d85a46	2342	dw = get_fattime(); /* Created time */
jksoft	0:e9f196d85a46	2343	ST_DWORD(dir+DIR_CrtTime, dw);
jksoft	0:e9f196d85a46	2344	dir[DIR_Attr] = 0; /* Reset attribute */
jksoft	0:e9f196d85a46	2345	ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
jksoft	0:e9f196d85a46	2346	cl = ld_clust(dj.fs, dir); /* Get start cluster */
jksoft	0:e9f196d85a46	2347	st_clust(dir, 0); /* cluster = 0 */
jksoft	0:e9f196d85a46	2348	dj.fs->wflag = 1;
jksoft	0:e9f196d85a46	2349	if (cl) { /* Remove the cluster chain if exist */
jksoft	0:e9f196d85a46	2350	dw = dj.fs->winsect;
jksoft	0:e9f196d85a46	2351	res = remove_chain(dj.fs, cl);
jksoft	0:e9f196d85a46	2352	if (res == FR_OK) {
jksoft	0:e9f196d85a46	2353	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
jksoft	0:e9f196d85a46	2354	res = move_window(dj.fs, dw);
jksoft	0:e9f196d85a46	2355	}
jksoft	0:e9f196d85a46	2356	}
jksoft	0:e9f196d85a46	2357	}
jksoft	0:e9f196d85a46	2358	}
jksoft	0:e9f196d85a46	2359	else { /* Open an existing file */
jksoft	0:e9f196d85a46	2360	if (res == FR_OK) { /* Follow succeeded */
jksoft	0:e9f196d85a46	2361	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
jksoft	0:e9f196d85a46	2362	res = FR_NO_FILE;
jksoft	0:e9f196d85a46	2363	} else {
jksoft	0:e9f196d85a46	2364	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
jksoft	0:e9f196d85a46	2365	res = FR_DENIED;
jksoft	0:e9f196d85a46	2366	}
jksoft	0:e9f196d85a46	2367	}
jksoft	0:e9f196d85a46	2368	}
jksoft	0:e9f196d85a46	2369	if (res == FR_OK) {
jksoft	0:e9f196d85a46	2370	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
jksoft	0:e9f196d85a46	2371	mode \|= FA__WRITTEN;
jksoft	0:e9f196d85a46	2372	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
jksoft	0:e9f196d85a46	2373	fp->dir_ptr = dir;
jksoft	0:e9f196d85a46	2374	#if _FS_LOCK
jksoft	0:e9f196d85a46	2375	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
jksoft	0:e9f196d85a46	2376	if (!fp->lockid) res = FR_INT_ERR;
jksoft	0:e9f196d85a46	2377	#endif
jksoft	0:e9f196d85a46	2378	}
jksoft	0:e9f196d85a46	2379
jksoft	0:e9f196d85a46	2380	#else /* R/O configuration */
jksoft	0:e9f196d85a46	2381	if (res == FR_OK) { /* Follow succeeded */
jksoft	0:e9f196d85a46	2382	dir = dj.dir;
jksoft	0:e9f196d85a46	2383	if (!dir) { /* Current dir itself */
jksoft	0:e9f196d85a46	2384	res = FR_INVALID_NAME;
jksoft	0:e9f196d85a46	2385	} else {
jksoft	0:e9f196d85a46	2386	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
jksoft	0:e9f196d85a46	2387	res = FR_NO_FILE;
jksoft	0:e9f196d85a46	2388	}
jksoft	0:e9f196d85a46	2389	}
jksoft	0:e9f196d85a46	2390	#endif
jksoft	0:e9f196d85a46	2391	FREE_BUF();
jksoft	0:e9f196d85a46	2392
jksoft	0:e9f196d85a46	2393	if (res == FR_OK) {
jksoft	0:e9f196d85a46	2394	fp->flag = mode; /* File access mode */
jksoft	0:e9f196d85a46	2395	fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
jksoft	0:e9f196d85a46	2396	fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
jksoft	0:e9f196d85a46	2397	fp->fptr = 0; /* File pointer */
jksoft	0:e9f196d85a46	2398	fp->dsect = 0;
jksoft	0:e9f196d85a46	2399	#if _USE_FASTSEEK
jksoft	0:e9f196d85a46	2400	fp->cltbl = 0; /* Normal seek mode */
jksoft	0:e9f196d85a46	2401	#endif
jksoft	0:e9f196d85a46	2402	fp->fs = dj.fs; fp->id = dj.fs->id; /* Validate file object */
jksoft	0:e9f196d85a46	2403	}
jksoft	0:e9f196d85a46	2404	}
jksoft	0:e9f196d85a46	2405
jksoft	0:e9f196d85a46	2406	LEAVE_FF(dj.fs, res);
jksoft	0:e9f196d85a46	2407	}
jksoft	0:e9f196d85a46	2408
jksoft	0:e9f196d85a46	2409
jksoft	0:e9f196d85a46	2410
jksoft	0:e9f196d85a46	2411
jksoft	0:e9f196d85a46	2412	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2413	/* Read File */
jksoft	0:e9f196d85a46	2414	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2415
jksoft	0:e9f196d85a46	2416	FRESULT f_read (
jksoft	0:e9f196d85a46	2417	FIL fp, / Pointer to the file object */
jksoft	0:e9f196d85a46	2418	void buff, / Pointer to data buffer */
jksoft	0:e9f196d85a46	2419	UINT btr, /* Number of bytes to read */
jksoft	0:e9f196d85a46	2420	UINT br / Pointer to number of bytes read */
jksoft	0:e9f196d85a46	2421	)
jksoft	0:e9f196d85a46	2422	{
jksoft	0:e9f196d85a46	2423	FRESULT res;
jksoft	0:e9f196d85a46	2424	DWORD clst, sect, remain;
jksoft	0:e9f196d85a46	2425	UINT rcnt, cc;
jksoft	0:e9f196d85a46	2426	BYTE csect, rbuff = (BYTE )buff;
jksoft	0:e9f196d85a46	2427
jksoft	0:e9f196d85a46	2428
jksoft	0:e9f196d85a46	2429	br = 0; / Clear read byte counter */
jksoft	0:e9f196d85a46	2430
jksoft	0:e9f196d85a46	2431	res = validate(fp); /* Check validity */
jksoft	0:e9f196d85a46	2432	if (res != FR_OK) LEAVE_FF(fp->fs, res);
jksoft	0:e9f196d85a46	2433	if (fp->flag & FA__ERROR) /* Aborted file? */
jksoft	0:e9f196d85a46	2434	LEAVE_FF(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	2435	if (!(fp->flag & FA_READ)) /* Check access mode */
jksoft	0:e9f196d85a46	2436	LEAVE_FF(fp->fs, FR_DENIED);
jksoft	0:e9f196d85a46	2437	remain = fp->fsize - fp->fptr;
jksoft	0:e9f196d85a46	2438	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
jksoft	0:e9f196d85a46	2439
jksoft	0:e9f196d85a46	2440	for ( ; btr; /* Repeat until all data read */
jksoft	0:e9f196d85a46	2441	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
jksoft	0:e9f196d85a46	2442	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
jksoft	0:e9f196d85a46	2443	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
jksoft	0:e9f196d85a46	2444	if (!csect) { /* On the cluster boundary? */
jksoft	0:e9f196d85a46	2445	if (fp->fptr == 0) { /* On the top of the file? */
jksoft	0:e9f196d85a46	2446	clst = fp->sclust; /* Follow from the origin */
jksoft	0:e9f196d85a46	2447	} else { /* Middle or end of the file */
jksoft	0:e9f196d85a46	2448	#if _USE_FASTSEEK
jksoft	0:e9f196d85a46	2449	if (fp->cltbl)
jksoft	0:e9f196d85a46	2450	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
jksoft	0:e9f196d85a46	2451	else
jksoft	0:e9f196d85a46	2452	#endif
jksoft	0:e9f196d85a46	2453	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
jksoft	0:e9f196d85a46	2454	}
jksoft	0:e9f196d85a46	2455	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	2456	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2457	fp->clust = clst; /* Update current cluster */
jksoft	0:e9f196d85a46	2458	}
jksoft	0:e9f196d85a46	2459	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
jksoft	0:e9f196d85a46	2460	if (!sect) ABORT(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	2461	sect += csect;
jksoft	0:e9f196d85a46	2462	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
jksoft	0:e9f196d85a46	2463	if (cc) { /* Read maximum contiguous sectors directly */
jksoft	0:e9f196d85a46	2464	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
jksoft	0:e9f196d85a46	2465	cc = fp->fs->csize - csect;
jksoft	0:e9f196d85a46	2466	if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK)
jksoft	0:e9f196d85a46	2467	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2468	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
jksoft	0:e9f196d85a46	2469	#if _FS_TINY
jksoft	0:e9f196d85a46	2470	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
jksoft	0:e9f196d85a46	2471	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
jksoft	0:e9f196d85a46	2472	#else
jksoft	0:e9f196d85a46	2473	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
jksoft	0:e9f196d85a46	2474	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
jksoft	0:e9f196d85a46	2475	#endif
jksoft	0:e9f196d85a46	2476	#endif
jksoft	0:e9f196d85a46	2477	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
jksoft	0:e9f196d85a46	2478	continue;
jksoft	0:e9f196d85a46	2479	}
jksoft	0:e9f196d85a46	2480	#if !_FS_TINY
jksoft	0:e9f196d85a46	2481	if (fp->dsect != sect) { /* Load data sector if not in cache */
jksoft	0:e9f196d85a46	2482	#if !_FS_READONLY
jksoft	0:e9f196d85a46	2483	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
jksoft	0:e9f196d85a46	2484	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
jksoft	0:e9f196d85a46	2485	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2486	fp->flag &= ~FA__DIRTY;
jksoft	0:e9f196d85a46	2487	}
jksoft	0:e9f196d85a46	2488	#endif
jksoft	0:e9f196d85a46	2489	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
jksoft	0:e9f196d85a46	2490	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2491	}
jksoft	0:e9f196d85a46	2492	#endif
jksoft	0:e9f196d85a46	2493	fp->dsect = sect;
jksoft	0:e9f196d85a46	2494	}
jksoft	0:e9f196d85a46	2495	rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
jksoft	0:e9f196d85a46	2496	if (rcnt > btr) rcnt = btr;
jksoft	0:e9f196d85a46	2497	#if _FS_TINY
jksoft	0:e9f196d85a46	2498	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
jksoft	0:e9f196d85a46	2499	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2500	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
jksoft	0:e9f196d85a46	2501	#else
jksoft	0:e9f196d85a46	2502	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
jksoft	0:e9f196d85a46	2503	#endif
jksoft	0:e9f196d85a46	2504	}
jksoft	0:e9f196d85a46	2505
jksoft	0:e9f196d85a46	2506	LEAVE_FF(fp->fs, FR_OK);
jksoft	0:e9f196d85a46	2507	}
jksoft	0:e9f196d85a46	2508
jksoft	0:e9f196d85a46	2509
jksoft	0:e9f196d85a46	2510
jksoft	0:e9f196d85a46	2511
jksoft	0:e9f196d85a46	2512	#if !_FS_READONLY
jksoft	0:e9f196d85a46	2513	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2514	/* Write File */
jksoft	0:e9f196d85a46	2515	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2516
jksoft	0:e9f196d85a46	2517	FRESULT f_write (
jksoft	0:e9f196d85a46	2518	FIL fp, / Pointer to the file object */
jksoft	0:e9f196d85a46	2519	const void buff, / Pointer to the data to be written */
jksoft	0:e9f196d85a46	2520	UINT btw, /* Number of bytes to write */
jksoft	0:e9f196d85a46	2521	UINT bw / Pointer to number of bytes written */
jksoft	0:e9f196d85a46	2522	)
jksoft	0:e9f196d85a46	2523	{
jksoft	0:e9f196d85a46	2524	FRESULT res;
jksoft	0:e9f196d85a46	2525	DWORD clst, sect;
jksoft	0:e9f196d85a46	2526	UINT wcnt, cc;
jksoft	0:e9f196d85a46	2527	const BYTE wbuff = (const BYTE )buff;
jksoft	0:e9f196d85a46	2528	BYTE csect;
jksoft	0:e9f196d85a46	2529
jksoft	0:e9f196d85a46	2530
jksoft	0:e9f196d85a46	2531	bw = 0; / Clear write byte counter */
jksoft	0:e9f196d85a46	2532
jksoft	0:e9f196d85a46	2533	res = validate(fp); /* Check validity */
jksoft	0:e9f196d85a46	2534	if (res != FR_OK) LEAVE_FF(fp->fs, res);
jksoft	0:e9f196d85a46	2535	if (fp->flag & FA__ERROR) /* Aborted file? */
jksoft	0:e9f196d85a46	2536	LEAVE_FF(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	2537	if (!(fp->flag & FA_WRITE)) /* Check access mode */
jksoft	0:e9f196d85a46	2538	LEAVE_FF(fp->fs, FR_DENIED);
jksoft	0:e9f196d85a46	2539	if ((DWORD)(fp->fsize + btw) < fp->fsize) btw = 0; /* File size cannot reach 4GB */
jksoft	0:e9f196d85a46	2540
jksoft	0:e9f196d85a46	2541	for ( ; btw; /* Repeat until all data written */
jksoft	0:e9f196d85a46	2542	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
jksoft	0:e9f196d85a46	2543	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
jksoft	0:e9f196d85a46	2544	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
jksoft	0:e9f196d85a46	2545	if (!csect) { /* On the cluster boundary? */
jksoft	0:e9f196d85a46	2546	if (fp->fptr == 0) { /* On the top of the file? */
jksoft	0:e9f196d85a46	2547	clst = fp->sclust; /* Follow from the origin */
jksoft	0:e9f196d85a46	2548	if (clst == 0) /* When no cluster is allocated, */
jksoft	0:e9f196d85a46	2549	fp->sclust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
jksoft	0:e9f196d85a46	2550	} else { /* Middle or end of the file */
jksoft	0:e9f196d85a46	2551	#if _USE_FASTSEEK
jksoft	0:e9f196d85a46	2552	if (fp->cltbl)
jksoft	0:e9f196d85a46	2553	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
jksoft	0:e9f196d85a46	2554	else
jksoft	0:e9f196d85a46	2555	#endif
jksoft	0:e9f196d85a46	2556	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
jksoft	0:e9f196d85a46	2557	}
jksoft	0:e9f196d85a46	2558	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
jksoft	0:e9f196d85a46	2559	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	2560	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2561	fp->clust = clst; /* Update current cluster */
jksoft	0:e9f196d85a46	2562	}
jksoft	0:e9f196d85a46	2563	#if _FS_TINY
jksoft	0:e9f196d85a46	2564	if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write-back sector cache */
jksoft	0:e9f196d85a46	2565	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2566	#else
jksoft	0:e9f196d85a46	2567	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
jksoft	0:e9f196d85a46	2568	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
jksoft	0:e9f196d85a46	2569	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2570	fp->flag &= ~FA__DIRTY;
jksoft	0:e9f196d85a46	2571	}
jksoft	0:e9f196d85a46	2572	#endif
jksoft	0:e9f196d85a46	2573	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
jksoft	0:e9f196d85a46	2574	if (!sect) ABORT(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	2575	sect += csect;
jksoft	0:e9f196d85a46	2576	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
jksoft	0:e9f196d85a46	2577	if (cc) { /* Write maximum contiguous sectors directly */
jksoft	0:e9f196d85a46	2578	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
jksoft	0:e9f196d85a46	2579	cc = fp->fs->csize - csect;
jksoft	0:e9f196d85a46	2580	if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK)
jksoft	0:e9f196d85a46	2581	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2582	#if _FS_TINY
jksoft	0:e9f196d85a46	2583	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
jksoft	0:e9f196d85a46	2584	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
jksoft	0:e9f196d85a46	2585	fp->fs->wflag = 0;
jksoft	0:e9f196d85a46	2586	}
jksoft	0:e9f196d85a46	2587	#else
jksoft	0:e9f196d85a46	2588	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
jksoft	0:e9f196d85a46	2589	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
jksoft	0:e9f196d85a46	2590	fp->flag &= ~FA__DIRTY;
jksoft	0:e9f196d85a46	2591	}
jksoft	0:e9f196d85a46	2592	#endif
jksoft	0:e9f196d85a46	2593	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
jksoft	0:e9f196d85a46	2594	continue;
jksoft	0:e9f196d85a46	2595	}
jksoft	0:e9f196d85a46	2596	#if _FS_TINY
jksoft	0:e9f196d85a46	2597	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
jksoft	0:e9f196d85a46	2598	if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2599	fp->fs->winsect = sect;
jksoft	0:e9f196d85a46	2600	}
jksoft	0:e9f196d85a46	2601	#else
jksoft	0:e9f196d85a46	2602	if (fp->dsect != sect) { /* Fill sector cache with file data */
jksoft	0:e9f196d85a46	2603	if (fp->fptr < fp->fsize &&
jksoft	0:e9f196d85a46	2604	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
jksoft	0:e9f196d85a46	2605	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2606	}
jksoft	0:e9f196d85a46	2607	#endif
jksoft	0:e9f196d85a46	2608	fp->dsect = sect;
jksoft	0:e9f196d85a46	2609	}
jksoft	0:e9f196d85a46	2610	wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
jksoft	0:e9f196d85a46	2611	if (wcnt > btw) wcnt = btw;
jksoft	0:e9f196d85a46	2612	#if _FS_TINY
jksoft	0:e9f196d85a46	2613	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
jksoft	0:e9f196d85a46	2614	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2615	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
jksoft	0:e9f196d85a46	2616	fp->fs->wflag = 1;
jksoft	0:e9f196d85a46	2617	#else
jksoft	0:e9f196d85a46	2618	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
jksoft	0:e9f196d85a46	2619	fp->flag \|= FA__DIRTY;
jksoft	0:e9f196d85a46	2620	#endif
jksoft	0:e9f196d85a46	2621	}
jksoft	0:e9f196d85a46	2622
jksoft	0:e9f196d85a46	2623	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
jksoft	0:e9f196d85a46	2624	fp->flag \|= FA__WRITTEN; /* Set file change flag */
jksoft	0:e9f196d85a46	2625
jksoft	0:e9f196d85a46	2626	LEAVE_FF(fp->fs, FR_OK);
jksoft	0:e9f196d85a46	2627	}
jksoft	0:e9f196d85a46	2628
jksoft	0:e9f196d85a46	2629
jksoft	0:e9f196d85a46	2630
jksoft	0:e9f196d85a46	2631
jksoft	0:e9f196d85a46	2632	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2633	/* Synchronize the File Object */
jksoft	0:e9f196d85a46	2634	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2635
jksoft	0:e9f196d85a46	2636	FRESULT f_sync (
jksoft	0:e9f196d85a46	2637	FIL fp / Pointer to the file object */
jksoft	0:e9f196d85a46	2638	)
jksoft	0:e9f196d85a46	2639	{
jksoft	0:e9f196d85a46	2640	FRESULT res;
jksoft	0:e9f196d85a46	2641	DWORD tim;
jksoft	0:e9f196d85a46	2642	BYTE *dir;
jksoft	0:e9f196d85a46	2643
jksoft	0:e9f196d85a46	2644
jksoft	0:e9f196d85a46	2645	res = validate(fp); /* Check validity of the object */
jksoft	0:e9f196d85a46	2646	if (res == FR_OK) {
jksoft	0:e9f196d85a46	2647	if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
jksoft	0:e9f196d85a46	2648	#if !_FS_TINY /* Write-back dirty buffer */
jksoft	0:e9f196d85a46	2649	if (fp->flag & FA__DIRTY) {
jksoft	0:e9f196d85a46	2650	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
jksoft	0:e9f196d85a46	2651	LEAVE_FF(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2652	fp->flag &= ~FA__DIRTY;
jksoft	0:e9f196d85a46	2653	}
jksoft	0:e9f196d85a46	2654	#endif
jksoft	0:e9f196d85a46	2655	/* Update the directory entry */
jksoft	0:e9f196d85a46	2656	res = move_window(fp->fs, fp->dir_sect);
jksoft	0:e9f196d85a46	2657	if (res == FR_OK) {
jksoft	0:e9f196d85a46	2658	dir = fp->dir_ptr;
jksoft	0:e9f196d85a46	2659	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
jksoft	0:e9f196d85a46	2660	ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
jksoft	0:e9f196d85a46	2661	st_clust(dir, fp->sclust); /* Update start cluster */
jksoft	0:e9f196d85a46	2662	tim = get_fattime(); /* Update updated time */
jksoft	0:e9f196d85a46	2663	ST_DWORD(dir+DIR_WrtTime, tim);
jksoft	0:e9f196d85a46	2664	ST_WORD(dir+DIR_LstAccDate, 0);
jksoft	0:e9f196d85a46	2665	fp->flag &= ~FA__WRITTEN;
jksoft	0:e9f196d85a46	2666	fp->fs->wflag = 1;
jksoft	0:e9f196d85a46	2667	res = sync(fp->fs);
jksoft	0:e9f196d85a46	2668	}
jksoft	0:e9f196d85a46	2669	}
jksoft	0:e9f196d85a46	2670	}
jksoft	0:e9f196d85a46	2671
jksoft	0:e9f196d85a46	2672	LEAVE_FF(fp->fs, res);
jksoft	0:e9f196d85a46	2673	}
jksoft	0:e9f196d85a46	2674
jksoft	0:e9f196d85a46	2675	#endif /* !_FS_READONLY */
jksoft	0:e9f196d85a46	2676
jksoft	0:e9f196d85a46	2677
jksoft	0:e9f196d85a46	2678
jksoft	0:e9f196d85a46	2679
jksoft	0:e9f196d85a46	2680	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2681	/* Close File */
jksoft	0:e9f196d85a46	2682	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2683
jksoft	0:e9f196d85a46	2684	FRESULT f_close (
jksoft	0:e9f196d85a46	2685	FIL fp / Pointer to the file object to be closed */
jksoft	0:e9f196d85a46	2686	)
jksoft	0:e9f196d85a46	2687	{
jksoft	0:e9f196d85a46	2688	FRESULT res;
jksoft	0:e9f196d85a46	2689
jksoft	0:e9f196d85a46	2690
jksoft	0:e9f196d85a46	2691	#if _FS_READONLY
jksoft	0:e9f196d85a46	2692	res = validate(fp);
jksoft	0:e9f196d85a46	2693	{
jksoft	0:e9f196d85a46	2694	#if _FS_REENTRANT
jksoft	0:e9f196d85a46	2695	FATFS *fs = fp->fs;
jksoft	0:e9f196d85a46	2696	#endif
jksoft	0:e9f196d85a46	2697	if (res == FR_OK) fp->fs = 0; /* Discard file object */
jksoft	0:e9f196d85a46	2698	LEAVE_FF(fs, res);
jksoft	0:e9f196d85a46	2699	}
jksoft	0:e9f196d85a46	2700	#else
jksoft	0:e9f196d85a46	2701	res = f_sync(fp); /* Flush cached data */
jksoft	0:e9f196d85a46	2702	#if _FS_LOCK
jksoft	0:e9f196d85a46	2703	if (res == FR_OK) { /* Decrement open counter */
jksoft	0:e9f196d85a46	2704	#if _FS_REENTRANT
jksoft	0:e9f196d85a46	2705	FATFS *fs = fp->fs;;
jksoft	0:e9f196d85a46	2706	res = validate(fp);
jksoft	0:e9f196d85a46	2707	if (res == FR_OK) {
jksoft	0:e9f196d85a46	2708	res = dec_lock(fp->lockid);
jksoft	0:e9f196d85a46	2709	unlock_fs(fs, FR_OK);
jksoft	0:e9f196d85a46	2710	}
jksoft	0:e9f196d85a46	2711	#else
jksoft	0:e9f196d85a46	2712	res = dec_lock(fp->lockid);
jksoft	0:e9f196d85a46	2713	#endif
jksoft	0:e9f196d85a46	2714	}
jksoft	0:e9f196d85a46	2715	#endif
jksoft	0:e9f196d85a46	2716	if (res == FR_OK) fp->fs = 0; /* Discard file object */
jksoft	0:e9f196d85a46	2717	return res;
jksoft	0:e9f196d85a46	2718	#endif
jksoft	0:e9f196d85a46	2719	}
jksoft	0:e9f196d85a46	2720
jksoft	0:e9f196d85a46	2721
jksoft	0:e9f196d85a46	2722
jksoft	0:e9f196d85a46	2723
jksoft	0:e9f196d85a46	2724	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2725	/* Current Drive/Directory Handlings */
jksoft	0:e9f196d85a46	2726	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2727
jksoft	0:e9f196d85a46	2728	#if _FS_RPATH >= 1
jksoft	0:e9f196d85a46	2729
jksoft	0:e9f196d85a46	2730	FRESULT f_chdrive (
jksoft	0:e9f196d85a46	2731	BYTE drv /* Drive number */
jksoft	0:e9f196d85a46	2732	)
jksoft	0:e9f196d85a46	2733	{
jksoft	0:e9f196d85a46	2734	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
jksoft	0:e9f196d85a46	2735
jksoft	0:e9f196d85a46	2736	CurrVol = drv;
jksoft	0:e9f196d85a46	2737
jksoft	0:e9f196d85a46	2738	return FR_OK;
jksoft	0:e9f196d85a46	2739	}
jksoft	0:e9f196d85a46	2740
jksoft	0:e9f196d85a46	2741
jksoft	0:e9f196d85a46	2742
jksoft	0:e9f196d85a46	2743	FRESULT f_chdir (
jksoft	0:e9f196d85a46	2744	const TCHAR path / Pointer to the directory path */
jksoft	0:e9f196d85a46	2745	)
jksoft	0:e9f196d85a46	2746	{
jksoft	0:e9f196d85a46	2747	FRESULT res;
jksoft	0:e9f196d85a46	2748	DIR dj;
jksoft	0:e9f196d85a46	2749	DEF_NAMEBUF;
jksoft	0:e9f196d85a46	2750
jksoft	0:e9f196d85a46	2751
jksoft	0:e9f196d85a46	2752	res = chk_mounted(&path, &dj.fs, 0);
jksoft	0:e9f196d85a46	2753	if (res == FR_OK) {
jksoft	0:e9f196d85a46	2754	INIT_BUF(dj);
jksoft	0:e9f196d85a46	2755	res = follow_path(&dj, path); /* Follow the path */
jksoft	0:e9f196d85a46	2756	FREE_BUF();
jksoft	0:e9f196d85a46	2757	if (res == FR_OK) { /* Follow completed */
jksoft	0:e9f196d85a46	2758	if (!dj.dir) {
jksoft	0:e9f196d85a46	2759	dj.fs->cdir = dj.sclust; /* Start directory itself */
jksoft	0:e9f196d85a46	2760	} else {
jksoft	0:e9f196d85a46	2761	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
jksoft	0:e9f196d85a46	2762	dj.fs->cdir = ld_clust(dj.fs, dj.dir);
jksoft	0:e9f196d85a46	2763	else
jksoft	0:e9f196d85a46	2764	res = FR_NO_PATH; /* Reached but a file */
jksoft	0:e9f196d85a46	2765	}
jksoft	0:e9f196d85a46	2766	}
jksoft	0:e9f196d85a46	2767	if (res == FR_NO_FILE) res = FR_NO_PATH;
jksoft	0:e9f196d85a46	2768	}
jksoft	0:e9f196d85a46	2769
jksoft	0:e9f196d85a46	2770	LEAVE_FF(dj.fs, res);
jksoft	0:e9f196d85a46	2771	}
jksoft	0:e9f196d85a46	2772
jksoft	0:e9f196d85a46	2773
jksoft	0:e9f196d85a46	2774	#if _FS_RPATH >= 2
jksoft	0:e9f196d85a46	2775	FRESULT f_getcwd (
jksoft	0:e9f196d85a46	2776	TCHAR path, / Pointer to the directory path */
jksoft	0:e9f196d85a46	2777	UINT sz_path /* Size of path */
jksoft	0:e9f196d85a46	2778	)
jksoft	0:e9f196d85a46	2779	{
jksoft	0:e9f196d85a46	2780	FRESULT res;
jksoft	0:e9f196d85a46	2781	DIR dj;
jksoft	0:e9f196d85a46	2782	UINT i, n;
jksoft	0:e9f196d85a46	2783	DWORD ccl;
jksoft	0:e9f196d85a46	2784	TCHAR *tp;
jksoft	0:e9f196d85a46	2785	FILINFO fno;
jksoft	0:e9f196d85a46	2786	DEF_NAMEBUF;
jksoft	0:e9f196d85a46	2787
jksoft	0:e9f196d85a46	2788
jksoft	0:e9f196d85a46	2789	*path = 0;
jksoft	0:e9f196d85a46	2790	res = chk_mounted((const TCHAR*)&path, &dj.fs, 0); / Get current volume */
jksoft	0:e9f196d85a46	2791	if (res == FR_OK) {
jksoft	0:e9f196d85a46	2792	INIT_BUF(dj);
jksoft	0:e9f196d85a46	2793	i = sz_path; /* Bottom of buffer (dir stack base) */
jksoft	0:e9f196d85a46	2794	dj.sclust = dj.fs->cdir; /* Start to follow upper dir from current dir */
jksoft	0:e9f196d85a46	2795	while ((ccl = dj.sclust) != 0) { /* Repeat while current dir is a sub-dir */
jksoft	0:e9f196d85a46	2796	res = dir_sdi(&dj, 1); /* Get parent dir */
jksoft	0:e9f196d85a46	2797	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	2798	res = dir_read(&dj);
jksoft	0:e9f196d85a46	2799	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	2800	dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent dir */
jksoft	0:e9f196d85a46	2801	res = dir_sdi(&dj, 0);
jksoft	0:e9f196d85a46	2802	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	2803	do { /* Find the entry links to the child dir */
jksoft	0:e9f196d85a46	2804	res = dir_read(&dj);
jksoft	0:e9f196d85a46	2805	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	2806	if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
jksoft	0:e9f196d85a46	2807	res = dir_next(&dj, 0);
jksoft	0:e9f196d85a46	2808	} while (res == FR_OK);
jksoft	0:e9f196d85a46	2809	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
jksoft	0:e9f196d85a46	2810	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	2811	#if _USE_LFN
jksoft	0:e9f196d85a46	2812	fno.lfname = path;
jksoft	0:e9f196d85a46	2813	fno.lfsize = i;
jksoft	0:e9f196d85a46	2814	#endif
jksoft	0:e9f196d85a46	2815	get_fileinfo(&dj, &fno); /* Get the dir name and push it to the buffer */
jksoft	0:e9f196d85a46	2816	tp = fno.fname;
jksoft	0:e9f196d85a46	2817	if (_USE_LFN && *path) tp = path;
jksoft	0:e9f196d85a46	2818	for (n = 0; tp[n]; n++) ;
jksoft	0:e9f196d85a46	2819	if (i < n + 3) {
jksoft	0:e9f196d85a46	2820	res = FR_NOT_ENOUGH_CORE; break;
jksoft	0:e9f196d85a46	2821	}
jksoft	0:e9f196d85a46	2822	while (n) path[--i] = tp[--n];
jksoft	0:e9f196d85a46	2823	path[--i] = '/';
jksoft	0:e9f196d85a46	2824	}
jksoft	0:e9f196d85a46	2825	tp = path;
jksoft	0:e9f196d85a46	2826	if (res == FR_OK) {
jksoft	0:e9f196d85a46	2827	tp++ = '0' + CurrVol; / Put drive number */
jksoft	0:e9f196d85a46	2828	*tp++ = ':';
jksoft	0:e9f196d85a46	2829	if (i == sz_path) { /* Root-dir */
jksoft	0:e9f196d85a46	2830	*tp++ = '/';
jksoft	0:e9f196d85a46	2831	} else { /* Sub-dir */
jksoft	0:e9f196d85a46	2832	do /* Add stacked path str */
jksoft	0:e9f196d85a46	2833	*tp++ = path[i++];
jksoft	0:e9f196d85a46	2834	while (i < sz_path);
jksoft	0:e9f196d85a46	2835	}
jksoft	0:e9f196d85a46	2836	}
jksoft	0:e9f196d85a46	2837	*tp = 0;
jksoft	0:e9f196d85a46	2838	FREE_BUF();
jksoft	0:e9f196d85a46	2839	}
jksoft	0:e9f196d85a46	2840
jksoft	0:e9f196d85a46	2841	LEAVE_FF(dj.fs, res);
jksoft	0:e9f196d85a46	2842	}
jksoft	0:e9f196d85a46	2843	#endif /* _FS_RPATH >= 2 */
jksoft	0:e9f196d85a46	2844	#endif /* _FS_RPATH >= 1 */
jksoft	0:e9f196d85a46	2845
jksoft	0:e9f196d85a46	2846
jksoft	0:e9f196d85a46	2847
jksoft	0:e9f196d85a46	2848	#if _FS_MINIMIZE <= 2
jksoft	0:e9f196d85a46	2849	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2850	/* Seek File R/W Pointer */
jksoft	0:e9f196d85a46	2851	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	2852
jksoft	0:e9f196d85a46	2853	FRESULT f_lseek (
jksoft	0:e9f196d85a46	2854	FIL fp, / Pointer to the file object */
jksoft	0:e9f196d85a46	2855	DWORD ofs /* File pointer from top of file */
jksoft	0:e9f196d85a46	2856	)
jksoft	0:e9f196d85a46	2857	{
jksoft	0:e9f196d85a46	2858	FRESULT res;
jksoft	0:e9f196d85a46	2859
jksoft	0:e9f196d85a46	2860
jksoft	0:e9f196d85a46	2861	res = validate(fp); /* Check validity of the object */
jksoft	0:e9f196d85a46	2862	if (res != FR_OK) LEAVE_FF(fp->fs, res);
jksoft	0:e9f196d85a46	2863	if (fp->flag & FA__ERROR) /* Check abort flag */
jksoft	0:e9f196d85a46	2864	LEAVE_FF(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	2865
jksoft	0:e9f196d85a46	2866	#if _USE_FASTSEEK
jksoft	0:e9f196d85a46	2867	if (fp->cltbl) { /* Fast seek */
jksoft	0:e9f196d85a46	2868	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
jksoft	0:e9f196d85a46	2869
jksoft	0:e9f196d85a46	2870	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
jksoft	0:e9f196d85a46	2871	tbl = fp->cltbl;
jksoft	0:e9f196d85a46	2872	tlen = tbl++; ulen = 2; / Given table size and required table size */
jksoft	0:e9f196d85a46	2873	cl = fp->sclust; /* Top of the chain */
jksoft	0:e9f196d85a46	2874	if (cl) {
jksoft	0:e9f196d85a46	2875	do {
jksoft	0:e9f196d85a46	2876	/* Get a fragment */
jksoft	0:e9f196d85a46	2877	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
jksoft	0:e9f196d85a46	2878	do {
jksoft	0:e9f196d85a46	2879	pcl = cl; ncl++;
jksoft	0:e9f196d85a46	2880	cl = get_fat(fp->fs, cl);
jksoft	0:e9f196d85a46	2881	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	2882	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2883	} while (cl == pcl + 1);
jksoft	0:e9f196d85a46	2884	if (ulen <= tlen) { /* Store the length and top of the fragment */
jksoft	0:e9f196d85a46	2885	tbl++ = ncl; tbl++ = tcl;
jksoft	0:e9f196d85a46	2886	}
jksoft	0:e9f196d85a46	2887	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
jksoft	0:e9f196d85a46	2888	}
jksoft	0:e9f196d85a46	2889	fp->cltbl = ulen; / Number of items used */
jksoft	0:e9f196d85a46	2890	if (ulen <= tlen)
jksoft	0:e9f196d85a46	2891	tbl = 0; / Terminate table */
jksoft	0:e9f196d85a46	2892	else
jksoft	0:e9f196d85a46	2893	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
jksoft	0:e9f196d85a46	2894
jksoft	0:e9f196d85a46	2895	} else { /* Fast seek */
jksoft	0:e9f196d85a46	2896	if (ofs > fp->fsize) /* Clip offset at the file size */
jksoft	0:e9f196d85a46	2897	ofs = fp->fsize;
jksoft	0:e9f196d85a46	2898	fp->fptr = ofs; /* Set file pointer */
jksoft	0:e9f196d85a46	2899	if (ofs) {
jksoft	0:e9f196d85a46	2900	fp->clust = clmt_clust(fp, ofs - 1);
jksoft	0:e9f196d85a46	2901	dsc = clust2sect(fp->fs, fp->clust);
jksoft	0:e9f196d85a46	2902	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	2903	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
jksoft	0:e9f196d85a46	2904	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
jksoft	0:e9f196d85a46	2905	#if !_FS_TINY
jksoft	0:e9f196d85a46	2906	#if !_FS_READONLY
jksoft	0:e9f196d85a46	2907	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
jksoft	0:e9f196d85a46	2908	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
jksoft	0:e9f196d85a46	2909	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2910	fp->flag &= ~FA__DIRTY;
jksoft	0:e9f196d85a46	2911	}
jksoft	0:e9f196d85a46	2912	#endif
jksoft	0:e9f196d85a46	2913	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
jksoft	0:e9f196d85a46	2914	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2915	#endif
jksoft	0:e9f196d85a46	2916	fp->dsect = dsc;
jksoft	0:e9f196d85a46	2917	}
jksoft	0:e9f196d85a46	2918	}
jksoft	0:e9f196d85a46	2919	}
jksoft	0:e9f196d85a46	2920	} else
jksoft	0:e9f196d85a46	2921	#endif
jksoft	0:e9f196d85a46	2922
jksoft	0:e9f196d85a46	2923	/* Normal Seek */
jksoft	0:e9f196d85a46	2924	{
jksoft	0:e9f196d85a46	2925	DWORD clst, bcs, nsect, ifptr;
jksoft	0:e9f196d85a46	2926
jksoft	0:e9f196d85a46	2927	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
jksoft	0:e9f196d85a46	2928	#if !_FS_READONLY
jksoft	0:e9f196d85a46	2929	&& !(fp->flag & FA_WRITE)
jksoft	0:e9f196d85a46	2930	#endif
jksoft	0:e9f196d85a46	2931	) ofs = fp->fsize;
jksoft	0:e9f196d85a46	2932
jksoft	0:e9f196d85a46	2933	ifptr = fp->fptr;
jksoft	0:e9f196d85a46	2934	fp->fptr = nsect = 0;
jksoft	0:e9f196d85a46	2935	if (ofs) {
jksoft	0:e9f196d85a46	2936	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
jksoft	0:e9f196d85a46	2937	if (ifptr > 0 &&
jksoft	0:e9f196d85a46	2938	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
jksoft	0:e9f196d85a46	2939	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
jksoft	0:e9f196d85a46	2940	ofs -= fp->fptr;
jksoft	0:e9f196d85a46	2941	clst = fp->clust;
jksoft	0:e9f196d85a46	2942	} else { /* When seek to back cluster, */
jksoft	0:e9f196d85a46	2943	clst = fp->sclust; /* start from the first cluster */
jksoft	0:e9f196d85a46	2944	#if !_FS_READONLY
jksoft	0:e9f196d85a46	2945	if (clst == 0) { /* If no cluster chain, create a new chain */
jksoft	0:e9f196d85a46	2946	clst = create_chain(fp->fs, 0);
jksoft	0:e9f196d85a46	2947	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	2948	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2949	fp->sclust = clst;
jksoft	0:e9f196d85a46	2950	}
jksoft	0:e9f196d85a46	2951	#endif
jksoft	0:e9f196d85a46	2952	fp->clust = clst;
jksoft	0:e9f196d85a46	2953	}
jksoft	0:e9f196d85a46	2954	if (clst != 0) {
jksoft	0:e9f196d85a46	2955	while (ofs > bcs) { /* Cluster following loop */
jksoft	0:e9f196d85a46	2956	#if !_FS_READONLY
jksoft	0:e9f196d85a46	2957	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
jksoft	0:e9f196d85a46	2958	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
jksoft	0:e9f196d85a46	2959	if (clst == 0) { /* When disk gets full, clip file size */
jksoft	0:e9f196d85a46	2960	ofs = bcs; break;
jksoft	0:e9f196d85a46	2961	}
jksoft	0:e9f196d85a46	2962	} else
jksoft	0:e9f196d85a46	2963	#endif
jksoft	0:e9f196d85a46	2964	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
jksoft	0:e9f196d85a46	2965	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2966	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	2967	fp->clust = clst;
jksoft	0:e9f196d85a46	2968	fp->fptr += bcs;
jksoft	0:e9f196d85a46	2969	ofs -= bcs;
jksoft	0:e9f196d85a46	2970	}
jksoft	0:e9f196d85a46	2971	fp->fptr += ofs;
jksoft	0:e9f196d85a46	2972	if (ofs % SS(fp->fs)) {
jksoft	0:e9f196d85a46	2973	nsect = clust2sect(fp->fs, clst); /* Current sector */
jksoft	0:e9f196d85a46	2974	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	2975	nsect += ofs / SS(fp->fs);
jksoft	0:e9f196d85a46	2976	}
jksoft	0:e9f196d85a46	2977	}
jksoft	0:e9f196d85a46	2978	}
jksoft	0:e9f196d85a46	2979	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
jksoft	0:e9f196d85a46	2980	#if !_FS_TINY
jksoft	0:e9f196d85a46	2981	#if !_FS_READONLY
jksoft	0:e9f196d85a46	2982	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
jksoft	0:e9f196d85a46	2983	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
jksoft	0:e9f196d85a46	2984	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2985	fp->flag &= ~FA__DIRTY;
jksoft	0:e9f196d85a46	2986	}
jksoft	0:e9f196d85a46	2987	#endif
jksoft	0:e9f196d85a46	2988	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
jksoft	0:e9f196d85a46	2989	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	2990	#endif
jksoft	0:e9f196d85a46	2991	fp->dsect = nsect;
jksoft	0:e9f196d85a46	2992	}
jksoft	0:e9f196d85a46	2993	#if !_FS_READONLY
jksoft	0:e9f196d85a46	2994	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
jksoft	0:e9f196d85a46	2995	fp->fsize = fp->fptr;
jksoft	0:e9f196d85a46	2996	fp->flag \|= FA__WRITTEN;
jksoft	0:e9f196d85a46	2997	}
jksoft	0:e9f196d85a46	2998	#endif
jksoft	0:e9f196d85a46	2999	}
jksoft	0:e9f196d85a46	3000
jksoft	0:e9f196d85a46	3001	LEAVE_FF(fp->fs, res);
jksoft	0:e9f196d85a46	3002	}
jksoft	0:e9f196d85a46	3003
jksoft	0:e9f196d85a46	3004
jksoft	0:e9f196d85a46	3005
jksoft	0:e9f196d85a46	3006	#if _FS_MINIMIZE <= 1
jksoft	0:e9f196d85a46	3007	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3008	/* Create a Directory Object */
jksoft	0:e9f196d85a46	3009	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3010
jksoft	0:e9f196d85a46	3011	FRESULT f_opendir (
jksoft	0:e9f196d85a46	3012	FATFS_DIR dj, / Pointer to directory object to create */
jksoft	0:e9f196d85a46	3013	const TCHAR path / Pointer to the directory path */
jksoft	0:e9f196d85a46	3014	)
jksoft	0:e9f196d85a46	3015	{
jksoft	0:e9f196d85a46	3016	FRESULT res;
jksoft	0:e9f196d85a46	3017	FATFS *fs;
jksoft	0:e9f196d85a46	3018	DEF_NAMEBUF;
jksoft	0:e9f196d85a46	3019
jksoft	0:e9f196d85a46	3020
jksoft	0:e9f196d85a46	3021	if (!dj) return FR_INVALID_OBJECT;
jksoft	0:e9f196d85a46	3022
jksoft	0:e9f196d85a46	3023	res = chk_mounted(&path, &dj->fs, 0);
jksoft	0:e9f196d85a46	3024	fs = dj->fs;
jksoft	0:e9f196d85a46	3025	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3026	INIT_BUF(*dj);
jksoft	0:e9f196d85a46	3027	res = follow_path(dj, path); /* Follow the path to the directory */
jksoft	0:e9f196d85a46	3028	FREE_BUF();
jksoft	0:e9f196d85a46	3029	if (res == FR_OK) { /* Follow completed */
jksoft	0:e9f196d85a46	3030	if (dj->dir) { /* It is not the root dir */
jksoft	0:e9f196d85a46	3031	if (dj->dir[DIR_Attr] & AM_DIR) { /* The object is a directory */
jksoft	0:e9f196d85a46	3032	dj->sclust = ld_clust(fs, dj->dir);
jksoft	0:e9f196d85a46	3033	} else { /* The object is not a directory */
jksoft	0:e9f196d85a46	3034	res = FR_NO_PATH;
jksoft	0:e9f196d85a46	3035	}
jksoft	0:e9f196d85a46	3036	}
jksoft	0:e9f196d85a46	3037	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3038	dj->id = fs->id;
jksoft	0:e9f196d85a46	3039	res = dir_sdi(dj, 0); /* Rewind dir */
jksoft	0:e9f196d85a46	3040	}
jksoft	0:e9f196d85a46	3041	}
jksoft	0:e9f196d85a46	3042	if (res == FR_NO_FILE) res = FR_NO_PATH;
jksoft	0:e9f196d85a46	3043	if (res != FR_OK) dj->fs = 0; /* Invalidate the dir object if function faild */
jksoft	0:e9f196d85a46	3044	} else {
jksoft	0:e9f196d85a46	3045	dj->fs = 0;
jksoft	0:e9f196d85a46	3046	}
jksoft	0:e9f196d85a46	3047
jksoft	0:e9f196d85a46	3048	LEAVE_FF(fs, res);
jksoft	0:e9f196d85a46	3049	}
jksoft	0:e9f196d85a46	3050
jksoft	0:e9f196d85a46	3051
jksoft	0:e9f196d85a46	3052
jksoft	0:e9f196d85a46	3053
jksoft	0:e9f196d85a46	3054	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3055	/* Read Directory Entry in Sequence */
jksoft	0:e9f196d85a46	3056	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3057
jksoft	0:e9f196d85a46	3058	FRESULT f_readdir (
jksoft	0:e9f196d85a46	3059	FATFS_DIR dj, / Pointer to the open directory object */
jksoft	0:e9f196d85a46	3060	FILINFO fno / Pointer to file information to return */
jksoft	0:e9f196d85a46	3061	)
jksoft	0:e9f196d85a46	3062	{
jksoft	0:e9f196d85a46	3063	FRESULT res;
jksoft	0:e9f196d85a46	3064	DEF_NAMEBUF;
jksoft	0:e9f196d85a46	3065
jksoft	0:e9f196d85a46	3066
jksoft	0:e9f196d85a46	3067	res = validate(dj); /* Check validity of the object */
jksoft	0:e9f196d85a46	3068	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3069	if (!fno) {
jksoft	0:e9f196d85a46	3070	res = dir_sdi(dj, 0); /* Rewind the directory object */
jksoft	0:e9f196d85a46	3071	} else {
jksoft	0:e9f196d85a46	3072	INIT_BUF(*dj);
jksoft	0:e9f196d85a46	3073	res = dir_read(dj); /* Read an directory item */
jksoft	0:e9f196d85a46	3074	if (res == FR_NO_FILE) { /* Reached end of dir */
jksoft	0:e9f196d85a46	3075	dj->sect = 0;
jksoft	0:e9f196d85a46	3076	res = FR_OK;
jksoft	0:e9f196d85a46	3077	}
jksoft	0:e9f196d85a46	3078	if (res == FR_OK) { /* A valid entry is found */
jksoft	0:e9f196d85a46	3079	get_fileinfo(dj, fno); /* Get the object information */
jksoft	0:e9f196d85a46	3080	res = dir_next(dj, 0); /* Increment index for next */
jksoft	0:e9f196d85a46	3081	if (res == FR_NO_FILE) {
jksoft	0:e9f196d85a46	3082	dj->sect = 0;
jksoft	0:e9f196d85a46	3083	res = FR_OK;
jksoft	0:e9f196d85a46	3084	}
jksoft	0:e9f196d85a46	3085	}
jksoft	0:e9f196d85a46	3086	FREE_BUF();
jksoft	0:e9f196d85a46	3087	}
jksoft	0:e9f196d85a46	3088	}
jksoft	0:e9f196d85a46	3089
jksoft	0:e9f196d85a46	3090	LEAVE_FF(dj->fs, res);
jksoft	0:e9f196d85a46	3091	}
jksoft	0:e9f196d85a46	3092
jksoft	0:e9f196d85a46	3093
jksoft	0:e9f196d85a46	3094
jksoft	0:e9f196d85a46	3095	#if _FS_MINIMIZE == 0
jksoft	0:e9f196d85a46	3096	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3097	/* Get File Status */
jksoft	0:e9f196d85a46	3098	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3099
jksoft	0:e9f196d85a46	3100	FRESULT f_stat (
jksoft	0:e9f196d85a46	3101	const TCHAR path, / Pointer to the file path */
jksoft	0:e9f196d85a46	3102	FILINFO fno / Pointer to file information to return */
jksoft	0:e9f196d85a46	3103	)
jksoft	0:e9f196d85a46	3104	{
jksoft	0:e9f196d85a46	3105	FRESULT res;
jksoft	0:e9f196d85a46	3106	FATFS_DIR dj;
jksoft	0:e9f196d85a46	3107	DEF_NAMEBUF;
jksoft	0:e9f196d85a46	3108
jksoft	0:e9f196d85a46	3109
jksoft	0:e9f196d85a46	3110	res = chk_mounted(&path, &dj.fs, 0);
jksoft	0:e9f196d85a46	3111	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3112	INIT_BUF(dj);
jksoft	0:e9f196d85a46	3113	res = follow_path(&dj, path); /* Follow the file path */
jksoft	0:e9f196d85a46	3114	if (res == FR_OK) { /* Follow completed */
jksoft	0:e9f196d85a46	3115	if (dj.dir) /* Found an object */
jksoft	0:e9f196d85a46	3116	get_fileinfo(&dj, fno);
jksoft	0:e9f196d85a46	3117	else /* It is root dir */
jksoft	0:e9f196d85a46	3118	res = FR_INVALID_NAME;
jksoft	0:e9f196d85a46	3119	}
jksoft	0:e9f196d85a46	3120	FREE_BUF();
jksoft	0:e9f196d85a46	3121	}
jksoft	0:e9f196d85a46	3122
jksoft	0:e9f196d85a46	3123	LEAVE_FF(dj.fs, res);
jksoft	0:e9f196d85a46	3124	}
jksoft	0:e9f196d85a46	3125
jksoft	0:e9f196d85a46	3126
jksoft	0:e9f196d85a46	3127
jksoft	0:e9f196d85a46	3128	#if !_FS_READONLY
jksoft	0:e9f196d85a46	3129	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3130	/* Get Number of Free Clusters */
jksoft	0:e9f196d85a46	3131	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3132
jksoft	0:e9f196d85a46	3133	FRESULT f_getfree (
jksoft	0:e9f196d85a46	3134	const TCHAR path, / Pointer to the logical drive number (root dir) */
jksoft	0:e9f196d85a46	3135	DWORD nclst, / Pointer to the variable to return number of free clusters */
jksoft	0:e9f196d85a46	3136	FATFS *fatfs / Pointer to pointer to corresponding file system object to return */
jksoft	0:e9f196d85a46	3137	)
jksoft	0:e9f196d85a46	3138	{
jksoft	0:e9f196d85a46	3139	FRESULT res;
jksoft	0:e9f196d85a46	3140	FATFS *fs;
jksoft	0:e9f196d85a46	3141	DWORD n, clst, sect, stat;
jksoft	0:e9f196d85a46	3142	UINT i;
jksoft	0:e9f196d85a46	3143	BYTE fat, *p;
jksoft	0:e9f196d85a46	3144
jksoft	0:e9f196d85a46	3145
jksoft	0:e9f196d85a46	3146	/* Get drive number */
jksoft	0:e9f196d85a46	3147	res = chk_mounted(&path, fatfs, 0);
jksoft	0:e9f196d85a46	3148	fs = *fatfs;
jksoft	0:e9f196d85a46	3149	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3150	/* If free_clust is valid, return it without full cluster scan */
jksoft	0:e9f196d85a46	3151	if (fs->free_clust <= fs->n_fatent - 2) {
jksoft	0:e9f196d85a46	3152	*nclst = fs->free_clust;
jksoft	0:e9f196d85a46	3153	} else {
jksoft	0:e9f196d85a46	3154	/* Get number of free clusters */
jksoft	0:e9f196d85a46	3155	fat = fs->fs_type;
jksoft	0:e9f196d85a46	3156	n = 0;
jksoft	0:e9f196d85a46	3157	if (fat == FS_FAT12) {
jksoft	0:e9f196d85a46	3158	clst = 2;
jksoft	0:e9f196d85a46	3159	do {
jksoft	0:e9f196d85a46	3160	stat = get_fat(fs, clst);
jksoft	0:e9f196d85a46	3161	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
jksoft	0:e9f196d85a46	3162	if (stat == 1) { res = FR_INT_ERR; break; }
jksoft	0:e9f196d85a46	3163	if (stat == 0) n++;
jksoft	0:e9f196d85a46	3164	} while (++clst < fs->n_fatent);
jksoft	0:e9f196d85a46	3165	} else {
jksoft	0:e9f196d85a46	3166	clst = fs->n_fatent;
jksoft	0:e9f196d85a46	3167	sect = fs->fatbase;
jksoft	0:e9f196d85a46	3168	i = 0; p = 0;
jksoft	0:e9f196d85a46	3169	do {
jksoft	0:e9f196d85a46	3170	if (!i) {
jksoft	0:e9f196d85a46	3171	res = move_window(fs, sect++);
jksoft	0:e9f196d85a46	3172	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	3173	p = fs->win;
jksoft	0:e9f196d85a46	3174	i = SS(fs);
jksoft	0:e9f196d85a46	3175	}
jksoft	0:e9f196d85a46	3176	if (fat == FS_FAT16) {
jksoft	0:e9f196d85a46	3177	if (LD_WORD(p) == 0) n++;
jksoft	0:e9f196d85a46	3178	p += 2; i -= 2;
jksoft	0:e9f196d85a46	3179	} else {
jksoft	0:e9f196d85a46	3180	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
jksoft	0:e9f196d85a46	3181	p += 4; i -= 4;
jksoft	0:e9f196d85a46	3182	}
jksoft	0:e9f196d85a46	3183	} while (--clst);
jksoft	0:e9f196d85a46	3184	}
jksoft	0:e9f196d85a46	3185	fs->free_clust = n;
jksoft	0:e9f196d85a46	3186	if (fat == FS_FAT32) fs->fsi_flag = 1;
jksoft	0:e9f196d85a46	3187	*nclst = n;
jksoft	0:e9f196d85a46	3188	}
jksoft	0:e9f196d85a46	3189	}
jksoft	0:e9f196d85a46	3190	LEAVE_FF(fs, res);
jksoft	0:e9f196d85a46	3191	}
jksoft	0:e9f196d85a46	3192
jksoft	0:e9f196d85a46	3193
jksoft	0:e9f196d85a46	3194
jksoft	0:e9f196d85a46	3195
jksoft	0:e9f196d85a46	3196	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3197	/* Truncate File */
jksoft	0:e9f196d85a46	3198	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3199
jksoft	0:e9f196d85a46	3200	FRESULT f_truncate (
jksoft	0:e9f196d85a46	3201	FIL fp / Pointer to the file object */
jksoft	0:e9f196d85a46	3202	)
jksoft	0:e9f196d85a46	3203	{
jksoft	0:e9f196d85a46	3204	FRESULT res;
jksoft	0:e9f196d85a46	3205	DWORD ncl;
jksoft	0:e9f196d85a46	3206
jksoft	0:e9f196d85a46	3207
jksoft	0:e9f196d85a46	3208	if (!fp) return FR_INVALID_OBJECT;
jksoft	0:e9f196d85a46	3209
jksoft	0:e9f196d85a46	3210	res = validate(fp); /* Check validity of the object */
jksoft	0:e9f196d85a46	3211	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3212	if (fp->flag & FA__ERROR) { /* Check abort flag */
jksoft	0:e9f196d85a46	3213	res = FR_INT_ERR;
jksoft	0:e9f196d85a46	3214	} else {
jksoft	0:e9f196d85a46	3215	if (!(fp->flag & FA_WRITE)) /* Check access mode */
jksoft	0:e9f196d85a46	3216	res = FR_DENIED;
jksoft	0:e9f196d85a46	3217	}
jksoft	0:e9f196d85a46	3218	}
jksoft	0:e9f196d85a46	3219	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3220	if (fp->fsize > fp->fptr) {
jksoft	0:e9f196d85a46	3221	fp->fsize = fp->fptr; /* Set file size to current R/W point */
jksoft	0:e9f196d85a46	3222	fp->flag \|= FA__WRITTEN;
jksoft	0:e9f196d85a46	3223	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
jksoft	0:e9f196d85a46	3224	res = remove_chain(fp->fs, fp->sclust);
jksoft	0:e9f196d85a46	3225	fp->sclust = 0;
jksoft	0:e9f196d85a46	3226	} else { /* When truncate a part of the file, remove remaining clusters */
jksoft	0:e9f196d85a46	3227	ncl = get_fat(fp->fs, fp->clust);
jksoft	0:e9f196d85a46	3228	res = FR_OK;
jksoft	0:e9f196d85a46	3229	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
jksoft	0:e9f196d85a46	3230	if (ncl == 1) res = FR_INT_ERR;
jksoft	0:e9f196d85a46	3231	if (res == FR_OK && ncl < fp->fs->n_fatent) {
jksoft	0:e9f196d85a46	3232	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
jksoft	0:e9f196d85a46	3233	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
jksoft	0:e9f196d85a46	3234	}
jksoft	0:e9f196d85a46	3235	}
jksoft	0:e9f196d85a46	3236	}
jksoft	0:e9f196d85a46	3237	if (res != FR_OK) fp->flag \|= FA__ERROR;
jksoft	0:e9f196d85a46	3238	}
jksoft	0:e9f196d85a46	3239
jksoft	0:e9f196d85a46	3240	LEAVE_FF(fp->fs, res);
jksoft	0:e9f196d85a46	3241	}
jksoft	0:e9f196d85a46	3242
jksoft	0:e9f196d85a46	3243
jksoft	0:e9f196d85a46	3244
jksoft	0:e9f196d85a46	3245
jksoft	0:e9f196d85a46	3246	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3247	/* Delete a File or Directory */
jksoft	0:e9f196d85a46	3248	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3249
jksoft	0:e9f196d85a46	3250	FRESULT f_unlink (
jksoft	0:e9f196d85a46	3251	const TCHAR path / Pointer to the file or directory path */
jksoft	0:e9f196d85a46	3252	)
jksoft	0:e9f196d85a46	3253	{
jksoft	0:e9f196d85a46	3254	FRESULT res;
jksoft	0:e9f196d85a46	3255	FATFS_DIR dj, sdj;
jksoft	0:e9f196d85a46	3256	BYTE *dir;
jksoft	0:e9f196d85a46	3257	DWORD dclst;
jksoft	0:e9f196d85a46	3258	DEF_NAMEBUF;
jksoft	0:e9f196d85a46	3259
jksoft	0:e9f196d85a46	3260
jksoft	0:e9f196d85a46	3261	res = chk_mounted(&path, &dj.fs, 1);
jksoft	0:e9f196d85a46	3262	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3263	INIT_BUF(dj);
jksoft	0:e9f196d85a46	3264	res = follow_path(&dj, path); /* Follow the file path */
jksoft	0:e9f196d85a46	3265	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
jksoft	0:e9f196d85a46	3266	res = FR_INVALID_NAME; /* Cannot remove dot entry */
jksoft	0:e9f196d85a46	3267	#if _FS_LOCK
jksoft	0:e9f196d85a46	3268	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open file */
jksoft	0:e9f196d85a46	3269	#endif
jksoft	0:e9f196d85a46	3270	if (res == FR_OK) { /* The object is accessible */
jksoft	0:e9f196d85a46	3271	dir = dj.dir;
jksoft	0:e9f196d85a46	3272	if (!dir) {
jksoft	0:e9f196d85a46	3273	res = FR_INVALID_NAME; /* Cannot remove the start directory */
jksoft	0:e9f196d85a46	3274	} else {
jksoft	0:e9f196d85a46	3275	if (dir[DIR_Attr] & AM_RDO)
jksoft	0:e9f196d85a46	3276	res = FR_DENIED; /* Cannot remove R/O object */
jksoft	0:e9f196d85a46	3277	}
jksoft	0:e9f196d85a46	3278	dclst = ld_clust(dj.fs, dir);
jksoft	0:e9f196d85a46	3279	if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-dir? */
jksoft	0:e9f196d85a46	3280	if (dclst < 2) {
jksoft	0:e9f196d85a46	3281	res = FR_INT_ERR;
jksoft	0:e9f196d85a46	3282	} else {
jksoft	0:e9f196d85a46	3283	mem_cpy(&sdj, &dj, sizeof (FATFS_DIR)); /* Check if the sub-dir is empty or not */
jksoft	0:e9f196d85a46	3284	sdj.sclust = dclst;
jksoft	0:e9f196d85a46	3285	res = dir_sdi(&sdj, 2); /* Exclude dot entries */
jksoft	0:e9f196d85a46	3286	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3287	res = dir_read(&sdj);
jksoft	0:e9f196d85a46	3288	if (res == FR_OK /* Not empty dir */
jksoft	0:e9f196d85a46	3289	#if _FS_RPATH
jksoft	0:e9f196d85a46	3290	\|\| dclst == dj.fs->cdir /* Current dir */
jksoft	0:e9f196d85a46	3291	#endif
jksoft	0:e9f196d85a46	3292	) res = FR_DENIED;
jksoft	0:e9f196d85a46	3293	if (res == FR_NO_FILE) res = FR_OK; /* Empty */
jksoft	0:e9f196d85a46	3294	}
jksoft	0:e9f196d85a46	3295	}
jksoft	0:e9f196d85a46	3296	}
jksoft	0:e9f196d85a46	3297	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3298	res = dir_remove(&dj); /* Remove the directory entry */
jksoft	0:e9f196d85a46	3299	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3300	if (dclst) /* Remove the cluster chain if exist */
jksoft	0:e9f196d85a46	3301	res = remove_chain(dj.fs, dclst);
jksoft	0:e9f196d85a46	3302	if (res == FR_OK) res = sync(dj.fs);
jksoft	0:e9f196d85a46	3303	}
jksoft	0:e9f196d85a46	3304	}
jksoft	0:e9f196d85a46	3305	}
jksoft	0:e9f196d85a46	3306	FREE_BUF();
jksoft	0:e9f196d85a46	3307	}
jksoft	0:e9f196d85a46	3308	LEAVE_FF(dj.fs, res);
jksoft	0:e9f196d85a46	3309	}
jksoft	0:e9f196d85a46	3310
jksoft	0:e9f196d85a46	3311
jksoft	0:e9f196d85a46	3312
jksoft	0:e9f196d85a46	3313
jksoft	0:e9f196d85a46	3314	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3315	/* Create a Directory */
jksoft	0:e9f196d85a46	3316	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3317
jksoft	0:e9f196d85a46	3318	FRESULT f_mkdir (
jksoft	0:e9f196d85a46	3319	const TCHAR path / Pointer to the directory path */
jksoft	0:e9f196d85a46	3320	)
jksoft	0:e9f196d85a46	3321	{
jksoft	0:e9f196d85a46	3322	FRESULT res;
jksoft	0:e9f196d85a46	3323	FATFS_DIR dj;
jksoft	0:e9f196d85a46	3324	BYTE *dir, n;
jksoft	0:e9f196d85a46	3325	DWORD dsc, dcl, pcl, tim = get_fattime();
jksoft	0:e9f196d85a46	3326	DEF_NAMEBUF;
jksoft	0:e9f196d85a46	3327
jksoft	0:e9f196d85a46	3328
jksoft	0:e9f196d85a46	3329	res = chk_mounted(&path, &dj.fs, 1);
jksoft	0:e9f196d85a46	3330	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3331	INIT_BUF(dj);
jksoft	0:e9f196d85a46	3332	res = follow_path(&dj, path); /* Follow the file path */
jksoft	0:e9f196d85a46	3333	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
jksoft	0:e9f196d85a46	3334	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
jksoft	0:e9f196d85a46	3335	res = FR_INVALID_NAME;
jksoft	0:e9f196d85a46	3336	if (res == FR_NO_FILE) { /* Can create a new directory */
jksoft	0:e9f196d85a46	3337	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
jksoft	0:e9f196d85a46	3338	res = FR_OK;
jksoft	0:e9f196d85a46	3339	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
jksoft	0:e9f196d85a46	3340	if (dcl == 1) res = FR_INT_ERR;
jksoft	0:e9f196d85a46	3341	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
jksoft	0:e9f196d85a46	3342	if (res == FR_OK) /* Flush FAT */
jksoft	0:e9f196d85a46	3343	res = move_window(dj.fs, 0);
jksoft	0:e9f196d85a46	3344	if (res == FR_OK) { /* Initialize the new directory table */
jksoft	0:e9f196d85a46	3345	dsc = clust2sect(dj.fs, dcl);
jksoft	0:e9f196d85a46	3346	dir = dj.fs->win;
jksoft	0:e9f196d85a46	3347	mem_set(dir, 0, SS(dj.fs));
jksoft	0:e9f196d85a46	3348	mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */
jksoft	0:e9f196d85a46	3349	dir[DIR_Name] = '.';
jksoft	0:e9f196d85a46	3350	dir[DIR_Attr] = AM_DIR;
jksoft	0:e9f196d85a46	3351	ST_DWORD(dir+DIR_WrtTime, tim);
jksoft	0:e9f196d85a46	3352	st_clust(dir, dcl);
jksoft	0:e9f196d85a46	3353	mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
jksoft	0:e9f196d85a46	3354	dir[33] = '.'; pcl = dj.sclust;
jksoft	0:e9f196d85a46	3355	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
jksoft	0:e9f196d85a46	3356	pcl = 0;
jksoft	0:e9f196d85a46	3357	st_clust(dir+SZ_DIR, pcl);
jksoft	0:e9f196d85a46	3358	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
jksoft	0:e9f196d85a46	3359	dj.fs->winsect = dsc++;
jksoft	0:e9f196d85a46	3360	dj.fs->wflag = 1;
jksoft	0:e9f196d85a46	3361	res = move_window(dj.fs, 0);
jksoft	0:e9f196d85a46	3362	if (res != FR_OK) break;
jksoft	0:e9f196d85a46	3363	mem_set(dir, 0, SS(dj.fs));
jksoft	0:e9f196d85a46	3364	}
jksoft	0:e9f196d85a46	3365	}
jksoft	0:e9f196d85a46	3366	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
jksoft	0:e9f196d85a46	3367	if (res != FR_OK) {
jksoft	0:e9f196d85a46	3368	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
jksoft	0:e9f196d85a46	3369	} else {
jksoft	0:e9f196d85a46	3370	dir = dj.dir;
jksoft	0:e9f196d85a46	3371	dir[DIR_Attr] = AM_DIR; /* Attribute */
jksoft	0:e9f196d85a46	3372	ST_DWORD(dir+DIR_WrtTime, tim); /* Created time */
jksoft	0:e9f196d85a46	3373	st_clust(dir, dcl); /* Table start cluster */
jksoft	0:e9f196d85a46	3374	dj.fs->wflag = 1;
jksoft	0:e9f196d85a46	3375	res = sync(dj.fs);
jksoft	0:e9f196d85a46	3376	}
jksoft	0:e9f196d85a46	3377	}
jksoft	0:e9f196d85a46	3378	FREE_BUF();
jksoft	0:e9f196d85a46	3379	}
jksoft	0:e9f196d85a46	3380
jksoft	0:e9f196d85a46	3381	LEAVE_FF(dj.fs, res);
jksoft	0:e9f196d85a46	3382	}
jksoft	0:e9f196d85a46	3383
jksoft	0:e9f196d85a46	3384
jksoft	0:e9f196d85a46	3385
jksoft	0:e9f196d85a46	3386
jksoft	0:e9f196d85a46	3387	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3388	/* Change Attribute */
jksoft	0:e9f196d85a46	3389	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3390
jksoft	0:e9f196d85a46	3391	FRESULT f_chmod (
jksoft	0:e9f196d85a46	3392	const TCHAR path, / Pointer to the file path */
jksoft	0:e9f196d85a46	3393	BYTE value, /* Attribute bits */
jksoft	0:e9f196d85a46	3394	BYTE mask /* Attribute mask to change */
jksoft	0:e9f196d85a46	3395	)
jksoft	0:e9f196d85a46	3396	{
jksoft	0:e9f196d85a46	3397	FRESULT res;
jksoft	0:e9f196d85a46	3398	FATFS_DIR dj;
jksoft	0:e9f196d85a46	3399	BYTE *dir;
jksoft	0:e9f196d85a46	3400	DEF_NAMEBUF;
jksoft	0:e9f196d85a46	3401
jksoft	0:e9f196d85a46	3402
jksoft	0:e9f196d85a46	3403	res = chk_mounted(&path, &dj.fs, 1);
jksoft	0:e9f196d85a46	3404	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3405	INIT_BUF(dj);
jksoft	0:e9f196d85a46	3406	res = follow_path(&dj, path); /* Follow the file path */
jksoft	0:e9f196d85a46	3407	FREE_BUF();
jksoft	0:e9f196d85a46	3408	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
jksoft	0:e9f196d85a46	3409	res = FR_INVALID_NAME;
jksoft	0:e9f196d85a46	3410	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3411	dir = dj.dir;
jksoft	0:e9f196d85a46	3412	if (!dir) { /* Is it a root directory? */
jksoft	0:e9f196d85a46	3413	res = FR_INVALID_NAME;
jksoft	0:e9f196d85a46	3414	} else { /* File or sub directory */
jksoft	0:e9f196d85a46	3415	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
jksoft	0:e9f196d85a46	3416	dir[DIR_Attr] = (value & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
jksoft	0:e9f196d85a46	3417	dj.fs->wflag = 1;
jksoft	0:e9f196d85a46	3418	res = sync(dj.fs);
jksoft	0:e9f196d85a46	3419	}
jksoft	0:e9f196d85a46	3420	}
jksoft	0:e9f196d85a46	3421	}
jksoft	0:e9f196d85a46	3422
jksoft	0:e9f196d85a46	3423	LEAVE_FF(dj.fs, res);
jksoft	0:e9f196d85a46	3424	}
jksoft	0:e9f196d85a46	3425
jksoft	0:e9f196d85a46	3426
jksoft	0:e9f196d85a46	3427
jksoft	0:e9f196d85a46	3428
jksoft	0:e9f196d85a46	3429	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3430	/* Change Timestamp */
jksoft	0:e9f196d85a46	3431	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3432
jksoft	0:e9f196d85a46	3433	FRESULT f_utime (
jksoft	0:e9f196d85a46	3434	const TCHAR path, / Pointer to the file/directory name */
jksoft	0:e9f196d85a46	3435	const FILINFO fno / Pointer to the time stamp to be set */
jksoft	0:e9f196d85a46	3436	)
jksoft	0:e9f196d85a46	3437	{
jksoft	0:e9f196d85a46	3438	FRESULT res;
jksoft	0:e9f196d85a46	3439	FATFS_DIR dj;
jksoft	0:e9f196d85a46	3440	BYTE *dir;
jksoft	0:e9f196d85a46	3441	DEF_NAMEBUF;
jksoft	0:e9f196d85a46	3442
jksoft	0:e9f196d85a46	3443
jksoft	0:e9f196d85a46	3444	res = chk_mounted(&path, &dj.fs, 1);
jksoft	0:e9f196d85a46	3445	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3446	INIT_BUF(dj);
jksoft	0:e9f196d85a46	3447	res = follow_path(&dj, path); /* Follow the file path */
jksoft	0:e9f196d85a46	3448	FREE_BUF();
jksoft	0:e9f196d85a46	3449	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
jksoft	0:e9f196d85a46	3450	res = FR_INVALID_NAME;
jksoft	0:e9f196d85a46	3451	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3452	dir = dj.dir;
jksoft	0:e9f196d85a46	3453	if (!dir) { /* Root directory */
jksoft	0:e9f196d85a46	3454	res = FR_INVALID_NAME;
jksoft	0:e9f196d85a46	3455	} else { /* File or sub-directory */
jksoft	0:e9f196d85a46	3456	ST_WORD(dir+DIR_WrtTime, fno->ftime);
jksoft	0:e9f196d85a46	3457	ST_WORD(dir+DIR_WrtDate, fno->fdate);
jksoft	0:e9f196d85a46	3458	dj.fs->wflag = 1;
jksoft	0:e9f196d85a46	3459	res = sync(dj.fs);
jksoft	0:e9f196d85a46	3460	}
jksoft	0:e9f196d85a46	3461	}
jksoft	0:e9f196d85a46	3462	}
jksoft	0:e9f196d85a46	3463
jksoft	0:e9f196d85a46	3464	LEAVE_FF(dj.fs, res);
jksoft	0:e9f196d85a46	3465	}
jksoft	0:e9f196d85a46	3466
jksoft	0:e9f196d85a46	3467
jksoft	0:e9f196d85a46	3468
jksoft	0:e9f196d85a46	3469
jksoft	0:e9f196d85a46	3470	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3471	/* Rename File/Directory */
jksoft	0:e9f196d85a46	3472	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3473
jksoft	0:e9f196d85a46	3474	FRESULT f_rename (
jksoft	0:e9f196d85a46	3475	const TCHAR path_old, / Pointer to the old name */
jksoft	0:e9f196d85a46	3476	const TCHAR path_new / Pointer to the new name */
jksoft	0:e9f196d85a46	3477	)
jksoft	0:e9f196d85a46	3478	{
jksoft	0:e9f196d85a46	3479	FRESULT res;
jksoft	0:e9f196d85a46	3480	FATFS_DIR djo, djn;
jksoft	0:e9f196d85a46	3481	BYTE buf[21], *dir;
jksoft	0:e9f196d85a46	3482	DWORD dw;
jksoft	0:e9f196d85a46	3483	DEF_NAMEBUF;
jksoft	0:e9f196d85a46	3484
jksoft	0:e9f196d85a46	3485
jksoft	0:e9f196d85a46	3486	res = chk_mounted(&path_old, &djo.fs, 1);
jksoft	0:e9f196d85a46	3487	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3488	djn.fs = djo.fs;
jksoft	0:e9f196d85a46	3489	INIT_BUF(djo);
jksoft	0:e9f196d85a46	3490	res = follow_path(&djo, path_old); /* Check old object */
jksoft	0:e9f196d85a46	3491	if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
jksoft	0:e9f196d85a46	3492	res = FR_INVALID_NAME;
jksoft	0:e9f196d85a46	3493	#if _FS_LOCK
jksoft	0:e9f196d85a46	3494	if (res == FR_OK) res = chk_lock(&djo, 2);
jksoft	0:e9f196d85a46	3495	#endif
jksoft	0:e9f196d85a46	3496	if (res == FR_OK) { /* Old object is found */
jksoft	0:e9f196d85a46	3497	if (!djo.dir) { /* Is root dir? */
jksoft	0:e9f196d85a46	3498	res = FR_NO_FILE;
jksoft	0:e9f196d85a46	3499	} else {
jksoft	0:e9f196d85a46	3500	mem_cpy(buf, djo.dir+DIR_Attr, 21); /* Save the object information except for name */
jksoft	0:e9f196d85a46	3501	mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Check new object */
jksoft	0:e9f196d85a46	3502	res = follow_path(&djn, path_new);
jksoft	0:e9f196d85a46	3503	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
jksoft	0:e9f196d85a46	3504	if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
jksoft	0:e9f196d85a46	3505	/* Start critical section that an interruption or error can cause cross-link */
jksoft	0:e9f196d85a46	3506	res = dir_register(&djn); /* Register the new entry */
jksoft	0:e9f196d85a46	3507	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3508	dir = djn.dir; /* Copy object information except for name */
jksoft	0:e9f196d85a46	3509	mem_cpy(dir+13, buf+2, 19);
jksoft	0:e9f196d85a46	3510	dir[DIR_Attr] = buf[0] \| AM_ARC;
jksoft	0:e9f196d85a46	3511	djo.fs->wflag = 1;
jksoft	0:e9f196d85a46	3512	if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) { /* Update .. entry in the directory if needed */
jksoft	0:e9f196d85a46	3513	dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
jksoft	0:e9f196d85a46	3514	if (!dw) {
jksoft	0:e9f196d85a46	3515	res = FR_INT_ERR;
jksoft	0:e9f196d85a46	3516	} else {
jksoft	0:e9f196d85a46	3517	res = move_window(djo.fs, dw);
jksoft	0:e9f196d85a46	3518	dir = djo.fs->win+SZ_DIR; /* .. entry */
jksoft	0:e9f196d85a46	3519	if (res == FR_OK && dir[1] == '.') {
jksoft	0:e9f196d85a46	3520	dw = (djo.fs->fs_type == FS_FAT32 && djn.sclust == djo.fs->dirbase) ? 0 : djn.sclust;
jksoft	0:e9f196d85a46	3521	st_clust(dir, dw);
jksoft	0:e9f196d85a46	3522	djo.fs->wflag = 1;
jksoft	0:e9f196d85a46	3523	}
jksoft	0:e9f196d85a46	3524	}
jksoft	0:e9f196d85a46	3525	}
jksoft	0:e9f196d85a46	3526	if (res == FR_OK) {
jksoft	0:e9f196d85a46	3527	res = dir_remove(&djo); /* Remove old entry */
jksoft	0:e9f196d85a46	3528	if (res == FR_OK)
jksoft	0:e9f196d85a46	3529	res = sync(djo.fs);
jksoft	0:e9f196d85a46	3530	}
jksoft	0:e9f196d85a46	3531	}
jksoft	0:e9f196d85a46	3532	/* End critical section */
jksoft	0:e9f196d85a46	3533	}
jksoft	0:e9f196d85a46	3534	}
jksoft	0:e9f196d85a46	3535	}
jksoft	0:e9f196d85a46	3536	FREE_BUF();
jksoft	0:e9f196d85a46	3537	}
jksoft	0:e9f196d85a46	3538	LEAVE_FF(djo.fs, res);
jksoft	0:e9f196d85a46	3539	}
jksoft	0:e9f196d85a46	3540
jksoft	0:e9f196d85a46	3541	#endif /* !_FS_READONLY */
jksoft	0:e9f196d85a46	3542	#endif /* _FS_MINIMIZE == 0 */
jksoft	0:e9f196d85a46	3543	#endif /* _FS_MINIMIZE <= 1 */
jksoft	0:e9f196d85a46	3544	#endif /* _FS_MINIMIZE <= 2 */
jksoft	0:e9f196d85a46	3545
jksoft	0:e9f196d85a46	3546
jksoft	0:e9f196d85a46	3547
jksoft	0:e9f196d85a46	3548	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3549	/* Forward data to the stream directly (available on only tiny cfg) */
jksoft	0:e9f196d85a46	3550	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3551	#if _USE_FORWARD && _FS_TINY
jksoft	0:e9f196d85a46	3552
jksoft	0:e9f196d85a46	3553	FRESULT f_forward (
jksoft	0:e9f196d85a46	3554	FIL fp, / Pointer to the file object */
jksoft	0:e9f196d85a46	3555	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
jksoft	0:e9f196d85a46	3556	UINT btr, /* Number of bytes to forward */
jksoft	0:e9f196d85a46	3557	UINT bf / Pointer to number of bytes forwarded */
jksoft	0:e9f196d85a46	3558	)
jksoft	0:e9f196d85a46	3559	{
jksoft	0:e9f196d85a46	3560	FRESULT res;
jksoft	0:e9f196d85a46	3561	DWORD remain, clst, sect;
jksoft	0:e9f196d85a46	3562	UINT rcnt;
jksoft	0:e9f196d85a46	3563	BYTE csect;
jksoft	0:e9f196d85a46	3564
jksoft	0:e9f196d85a46	3565
jksoft	0:e9f196d85a46	3566	bf = 0; / Clear transfer byte counter */
jksoft	0:e9f196d85a46	3567
jksoft	0:e9f196d85a46	3568	if (!fp) return FR_INVALID_OBJECT;
jksoft	0:e9f196d85a46	3569
jksoft	0:e9f196d85a46	3570	res = validate(fp); /* Check validity of the object */
jksoft	0:e9f196d85a46	3571	if (res != FR_OK) LEAVE_FF(fp->fs, res);
jksoft	0:e9f196d85a46	3572	if (fp->flag & FA__ERROR) /* Check error flag */
jksoft	0:e9f196d85a46	3573	LEAVE_FF(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	3574	if (!(fp->flag & FA_READ)) /* Check access mode */
jksoft	0:e9f196d85a46	3575	LEAVE_FF(fp->fs, FR_DENIED);
jksoft	0:e9f196d85a46	3576
jksoft	0:e9f196d85a46	3577	remain = fp->fsize - fp->fptr;
jksoft	0:e9f196d85a46	3578	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
jksoft	0:e9f196d85a46	3579
jksoft	0:e9f196d85a46	3580	for ( ; btr && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
jksoft	0:e9f196d85a46	3581	fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
jksoft	0:e9f196d85a46	3582	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
jksoft	0:e9f196d85a46	3583	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
jksoft	0:e9f196d85a46	3584	if (!csect) { /* On the cluster boundary? */
jksoft	0:e9f196d85a46	3585	clst = (fp->fptr == 0) ? /* On the top of the file? */
jksoft	0:e9f196d85a46	3586	fp->sclust : get_fat(fp->fs, fp->clust);
jksoft	0:e9f196d85a46	3587	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	3588	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	3589	fp->clust = clst; /* Update current cluster */
jksoft	0:e9f196d85a46	3590	}
jksoft	0:e9f196d85a46	3591	}
jksoft	0:e9f196d85a46	3592	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
jksoft	0:e9f196d85a46	3593	if (!sect) ABORT(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	3594	sect += csect;
jksoft	0:e9f196d85a46	3595	if (move_window(fp->fs, sect)) /* Move sector window */
jksoft	0:e9f196d85a46	3596	ABORT(fp->fs, FR_DISK_ERR);
jksoft	0:e9f196d85a46	3597	fp->dsect = sect;
jksoft	0:e9f196d85a46	3598	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
jksoft	0:e9f196d85a46	3599	if (rcnt > btr) rcnt = btr;
jksoft	0:e9f196d85a46	3600	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
jksoft	0:e9f196d85a46	3601	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
jksoft	0:e9f196d85a46	3602	}
jksoft	0:e9f196d85a46	3603
jksoft	0:e9f196d85a46	3604	LEAVE_FF(fp->fs, FR_OK);
jksoft	0:e9f196d85a46	3605	}
jksoft	0:e9f196d85a46	3606	#endif /* _USE_FORWARD */
jksoft	0:e9f196d85a46	3607
jksoft	0:e9f196d85a46	3608
jksoft	0:e9f196d85a46	3609
jksoft	0:e9f196d85a46	3610	#if _USE_MKFS && !_FS_READONLY
jksoft	0:e9f196d85a46	3611	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3612	/* Create File System on the Drive */
jksoft	0:e9f196d85a46	3613	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3614	#define N_ROOTDIR 512 /* Number of root dir entries for FAT12/16 */
jksoft	0:e9f196d85a46	3615	#define N_FATS 1 /* Number of FAT copies (1 or 2) */
jksoft	0:e9f196d85a46	3616
jksoft	0:e9f196d85a46	3617
jksoft	0:e9f196d85a46	3618	FRESULT f_mkfs (
jksoft	0:e9f196d85a46	3619	BYTE drv, /* Logical drive number */
jksoft	0:e9f196d85a46	3620	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
jksoft	0:e9f196d85a46	3621	UINT au /* Allocation unit size [bytes] */
jksoft	0:e9f196d85a46	3622	)
jksoft	0:e9f196d85a46	3623	{
jksoft	0:e9f196d85a46	3624	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
jksoft	0:e9f196d85a46	3625	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
jksoft	0:e9f196d85a46	3626	BYTE fmt, md, sys, *tbl, pdrv, part;
jksoft	0:e9f196d85a46	3627	DWORD n_clst, vs, n, wsect;
jksoft	0:e9f196d85a46	3628	UINT i;
jksoft	0:e9f196d85a46	3629	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
jksoft	0:e9f196d85a46	3630	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
jksoft	0:e9f196d85a46	3631	FATFS *fs;
jksoft	0:e9f196d85a46	3632	DSTATUS stat;
jksoft	0:e9f196d85a46	3633
jksoft	0:e9f196d85a46	3634
jksoft	0:e9f196d85a46	3635	/* Check mounted drive and clear work area */
jksoft	0:e9f196d85a46	3636	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
jksoft	0:e9f196d85a46	3637	if (sfd > 1) return FR_INVALID_PARAMETER;
jksoft	0:e9f196d85a46	3638	if (au & (au - 1)) return FR_INVALID_PARAMETER;
jksoft	0:e9f196d85a46	3639	fs = FatFs[drv];
jksoft	0:e9f196d85a46	3640	if (!fs) return FR_NOT_ENABLED;
jksoft	0:e9f196d85a46	3641	fs->fs_type = 0;
jksoft	0:e9f196d85a46	3642	pdrv = LD2PD(drv); /* Physical drive */
jksoft	0:e9f196d85a46	3643	part = LD2PT(drv); /* Partition (0:auto detect, 1-4:get from partition table)*/
jksoft	0:e9f196d85a46	3644
jksoft	0:e9f196d85a46	3645	/* Get disk statics */
jksoft	0:e9f196d85a46	3646	stat = disk_initialize(pdrv);
jksoft	0:e9f196d85a46	3647	if (stat & STA_NOINIT) return FR_NOT_READY;
jksoft	0:e9f196d85a46	3648	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
jksoft	0:e9f196d85a46	3649	#if _MAX_SS != 512 /* Get disk sector size */
jksoft	0:e9f196d85a46	3650	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS)
jksoft	0:e9f196d85a46	3651	return FR_DISK_ERR;
jksoft	0:e9f196d85a46	3652	#endif
jksoft	0:e9f196d85a46	3653	if (_MULTI_PARTITION && part) {
jksoft	0:e9f196d85a46	3654	/* Get partition information from partition table in the MBR */
jksoft	0:e9f196d85a46	3655	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
jksoft	0:e9f196d85a46	3656	if (LD_WORD(fs->win+BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
jksoft	0:e9f196d85a46	3657	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
jksoft	0:e9f196d85a46	3658	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
jksoft	0:e9f196d85a46	3659	b_vol = LD_DWORD(tbl+8); /* Volume start sector */
jksoft	0:e9f196d85a46	3660	n_vol = LD_DWORD(tbl+12); /* Volume size */
jksoft	0:e9f196d85a46	3661	} else {
jksoft	0:e9f196d85a46	3662	/* Create a partition in this function */
jksoft	0:e9f196d85a46	3663	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
jksoft	0:e9f196d85a46	3664	return FR_DISK_ERR;
jksoft	0:e9f196d85a46	3665	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
jksoft	0:e9f196d85a46	3666	n_vol -= b_vol; /* Volume size */
jksoft	0:e9f196d85a46	3667	}
jksoft	0:e9f196d85a46	3668
jksoft	0:e9f196d85a46	3669	if (!au) { /* AU auto selection */
jksoft	0:e9f196d85a46	3670	vs = n_vol / (2000 / (SS(fs) / 512));
jksoft	0:e9f196d85a46	3671	for (i = 0; vs < vst[i]; i++) ;
jksoft	0:e9f196d85a46	3672	au = cst[i];
jksoft	0:e9f196d85a46	3673	}
jksoft	0:e9f196d85a46	3674	au /= SS(fs); /* Number of sectors per cluster */
jksoft	0:e9f196d85a46	3675	if (au == 0) au = 1;
jksoft	0:e9f196d85a46	3676	if (au > 128) au = 128;
jksoft	0:e9f196d85a46	3677
jksoft	0:e9f196d85a46	3678	/* Pre-compute number of clusters and FAT sub-type */
jksoft	0:e9f196d85a46	3679	n_clst = n_vol / au;
jksoft	0:e9f196d85a46	3680	fmt = FS_FAT12;
jksoft	0:e9f196d85a46	3681	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
jksoft	0:e9f196d85a46	3682	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
jksoft	0:e9f196d85a46	3683
jksoft	0:e9f196d85a46	3684	/* Determine offset and size of FAT structure */
jksoft	0:e9f196d85a46	3685	if (fmt == FS_FAT32) {
jksoft	0:e9f196d85a46	3686	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
jksoft	0:e9f196d85a46	3687	n_rsv = 32;
jksoft	0:e9f196d85a46	3688	n_dir = 0;
jksoft	0:e9f196d85a46	3689	} else {
jksoft	0:e9f196d85a46	3690	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
jksoft	0:e9f196d85a46	3691	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
jksoft	0:e9f196d85a46	3692	n_rsv = 1;
jksoft	0:e9f196d85a46	3693	n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
jksoft	0:e9f196d85a46	3694	}
jksoft	0:e9f196d85a46	3695	b_fat = b_vol + n_rsv; /* FAT area start sector */
jksoft	0:e9f196d85a46	3696	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
jksoft	0:e9f196d85a46	3697	b_data = b_dir + n_dir; /* Data area start sector */
jksoft	0:e9f196d85a46	3698	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
jksoft	0:e9f196d85a46	3699
jksoft	0:e9f196d85a46	3700	/* Align data start sector to erase block boundary (for flash memory media) */
jksoft	0:e9f196d85a46	3701	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
jksoft	0:e9f196d85a46	3702	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
jksoft	0:e9f196d85a46	3703	n = (n - b_data) / N_FATS;
jksoft	0:e9f196d85a46	3704	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
jksoft	0:e9f196d85a46	3705	n_rsv += n;
jksoft	0:e9f196d85a46	3706	b_fat += n;
jksoft	0:e9f196d85a46	3707	} else { /* FAT12/16: Expand FAT size */
jksoft	0:e9f196d85a46	3708	n_fat += n;
jksoft	0:e9f196d85a46	3709	}
jksoft	0:e9f196d85a46	3710
jksoft	0:e9f196d85a46	3711	/* Determine number of clusters and final check of validity of the FAT sub-type */
jksoft	0:e9f196d85a46	3712	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
jksoft	0:e9f196d85a46	3713	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
jksoft	0:e9f196d85a46	3714	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
jksoft	0:e9f196d85a46	3715	return FR_MKFS_ABORTED;
jksoft	0:e9f196d85a46	3716
jksoft	0:e9f196d85a46	3717	switch (fmt) { /* Determine system ID for partition table */
jksoft	0:e9f196d85a46	3718	case FS_FAT12: sys = 0x01; break;
jksoft	0:e9f196d85a46	3719	case FS_FAT16: sys = (n_vol < 0x10000) ? 0x04 : 0x06; break;
jksoft	0:e9f196d85a46	3720	default: sys = 0x0C;
jksoft	0:e9f196d85a46	3721	}
jksoft	0:e9f196d85a46	3722
jksoft	0:e9f196d85a46	3723	if (_MULTI_PARTITION && part) {
jksoft	0:e9f196d85a46	3724	/* Update system ID in the partition table */
jksoft	0:e9f196d85a46	3725	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
jksoft	0:e9f196d85a46	3726	tbl[4] = sys;
jksoft	0:e9f196d85a46	3727	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
jksoft	0:e9f196d85a46	3728	md = 0xF8;
jksoft	0:e9f196d85a46	3729	} else {
jksoft	0:e9f196d85a46	3730	if (sfd) { /* No partition table (SFD) */
jksoft	0:e9f196d85a46	3731	md = 0xF0;
jksoft	0:e9f196d85a46	3732	} else { /* Create partition table (FDISK) */
jksoft	0:e9f196d85a46	3733	mem_set(fs->win, 0, SS(fs));
jksoft	0:e9f196d85a46	3734	tbl = fs->win+MBR_Table; /* Create partition table for single partition in the drive */
jksoft	0:e9f196d85a46	3735	tbl[1] = 1; /* Partition start head */
jksoft	0:e9f196d85a46	3736	tbl[2] = 1; /* Partition start sector */
jksoft	0:e9f196d85a46	3737	tbl[3] = 0; /* Partition start cylinder */
jksoft	0:e9f196d85a46	3738	tbl[4] = sys; /* System type */
jksoft	0:e9f196d85a46	3739	tbl[5] = 254; /* Partition end head */
jksoft	0:e9f196d85a46	3740	n = (b_vol + n_vol) / 63 / 255;
jksoft	0:e9f196d85a46	3741	tbl[6] = (BYTE)((n >> 2) \| 63); /* Partition end sector */
jksoft	0:e9f196d85a46	3742	tbl[7] = (BYTE)n; /* End cylinder */
jksoft	0:e9f196d85a46	3743	ST_DWORD(tbl+8, 63); /* Partition start in LBA */
jksoft	0:e9f196d85a46	3744	ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
jksoft	0:e9f196d85a46	3745	ST_WORD(fs->win+BS_55AA, 0xAA55); /* MBR signature */
jksoft	0:e9f196d85a46	3746	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR sector */
jksoft	0:e9f196d85a46	3747	return FR_DISK_ERR;
jksoft	0:e9f196d85a46	3748	md = 0xF8;
jksoft	0:e9f196d85a46	3749	}
jksoft	0:e9f196d85a46	3750	}
jksoft	0:e9f196d85a46	3751
jksoft	0:e9f196d85a46	3752	/* Create BPB in the VBR */
jksoft	0:e9f196d85a46	3753	tbl = fs->win; /* Clear sector */
jksoft	0:e9f196d85a46	3754	mem_set(tbl, 0, SS(fs));
jksoft	0:e9f196d85a46	3755	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
jksoft	0:e9f196d85a46	3756	i = SS(fs); /* Sector size */
jksoft	0:e9f196d85a46	3757	ST_WORD(tbl+BPB_BytsPerSec, i);
jksoft	0:e9f196d85a46	3758	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
jksoft	0:e9f196d85a46	3759	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
jksoft	0:e9f196d85a46	3760	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
jksoft	0:e9f196d85a46	3761	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of rootdir entries */
jksoft	0:e9f196d85a46	3762	ST_WORD(tbl+BPB_RootEntCnt, i);
jksoft	0:e9f196d85a46	3763	if (n_vol < 0x10000) { /* Number of total sectors */
jksoft	0:e9f196d85a46	3764	ST_WORD(tbl+BPB_TotSec16, n_vol);
jksoft	0:e9f196d85a46	3765	} else {
jksoft	0:e9f196d85a46	3766	ST_DWORD(tbl+BPB_TotSec32, n_vol);
jksoft	0:e9f196d85a46	3767	}
jksoft	0:e9f196d85a46	3768	tbl[BPB_Media] = md; /* Media descriptor */
jksoft	0:e9f196d85a46	3769	ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
jksoft	0:e9f196d85a46	3770	ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
jksoft	0:e9f196d85a46	3771	ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
jksoft	0:e9f196d85a46	3772	n = get_fattime(); /* Use current time as VSN */
jksoft	0:e9f196d85a46	3773	if (fmt == FS_FAT32) {
jksoft	0:e9f196d85a46	3774	ST_DWORD(tbl+BS_VolID32, n); /* VSN */
jksoft	0:e9f196d85a46	3775	ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
jksoft	0:e9f196d85a46	3776	ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
jksoft	0:e9f196d85a46	3777	ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (VBR+1) */
jksoft	0:e9f196d85a46	3778	ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
jksoft	0:e9f196d85a46	3779	tbl[BS_DrvNum32] = 0x80; /* Drive number */
jksoft	0:e9f196d85a46	3780	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
jksoft	0:e9f196d85a46	3781	mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
jksoft	0:e9f196d85a46	3782	} else {
jksoft	0:e9f196d85a46	3783	ST_DWORD(tbl+BS_VolID, n); /* VSN */
jksoft	0:e9f196d85a46	3784	ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
jksoft	0:e9f196d85a46	3785	tbl[BS_DrvNum] = 0x80; /* Drive number */
jksoft	0:e9f196d85a46	3786	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
jksoft	0:e9f196d85a46	3787	mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
jksoft	0:e9f196d85a46	3788	}
jksoft	0:e9f196d85a46	3789	ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
jksoft	0:e9f196d85a46	3790	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
jksoft	0:e9f196d85a46	3791	return FR_DISK_ERR;
jksoft	0:e9f196d85a46	3792	if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR+6) */
jksoft	0:e9f196d85a46	3793	disk_write(pdrv, tbl, b_vol + 6, 1);
jksoft	0:e9f196d85a46	3794
jksoft	0:e9f196d85a46	3795	/* Initialize FAT area */
jksoft	0:e9f196d85a46	3796	wsect = b_fat;
jksoft	0:e9f196d85a46	3797	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
jksoft	0:e9f196d85a46	3798	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
jksoft	0:e9f196d85a46	3799	n = md; /* Media descriptor byte */
jksoft	0:e9f196d85a46	3800	if (fmt != FS_FAT32) {
jksoft	0:e9f196d85a46	3801	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
jksoft	0:e9f196d85a46	3802	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
jksoft	0:e9f196d85a46	3803	} else {
jksoft	0:e9f196d85a46	3804	n \|= 0xFFFFFF00;
jksoft	0:e9f196d85a46	3805	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
jksoft	0:e9f196d85a46	3806	ST_DWORD(tbl+4, 0xFFFFFFFF);
jksoft	0:e9f196d85a46	3807	ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
jksoft	0:e9f196d85a46	3808	}
jksoft	0:e9f196d85a46	3809	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
jksoft	0:e9f196d85a46	3810	return FR_DISK_ERR;
jksoft	0:e9f196d85a46	3811	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
jksoft	0:e9f196d85a46	3812	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
jksoft	0:e9f196d85a46	3813	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
jksoft	0:e9f196d85a46	3814	return FR_DISK_ERR;
jksoft	0:e9f196d85a46	3815	}
jksoft	0:e9f196d85a46	3816	}
jksoft	0:e9f196d85a46	3817
jksoft	0:e9f196d85a46	3818	/* Initialize root directory */
jksoft	0:e9f196d85a46	3819	i = (fmt == FS_FAT32) ? au : n_dir;
jksoft	0:e9f196d85a46	3820	do {
jksoft	0:e9f196d85a46	3821	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
jksoft	0:e9f196d85a46	3822	return FR_DISK_ERR;
jksoft	0:e9f196d85a46	3823	} while (--i);
jksoft	0:e9f196d85a46	3824
jksoft	0:e9f196d85a46	3825	#if _USE_ERASE /* Erase data area if needed */
jksoft	0:e9f196d85a46	3826	{
jksoft	0:e9f196d85a46	3827	DWORD eb[2];
jksoft	0:e9f196d85a46	3828
jksoft	0:e9f196d85a46	3829	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
jksoft	0:e9f196d85a46	3830	disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
jksoft	0:e9f196d85a46	3831	}
jksoft	0:e9f196d85a46	3832	#endif
jksoft	0:e9f196d85a46	3833
jksoft	0:e9f196d85a46	3834	/* Create FSInfo if needed */
jksoft	0:e9f196d85a46	3835	if (fmt == FS_FAT32) {
jksoft	0:e9f196d85a46	3836	ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
jksoft	0:e9f196d85a46	3837	ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
jksoft	0:e9f196d85a46	3838	ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
jksoft	0:e9f196d85a46	3839	ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
jksoft	0:e9f196d85a46	3840	ST_WORD(tbl+BS_55AA, 0xAA55);
jksoft	0:e9f196d85a46	3841	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
jksoft	0:e9f196d85a46	3842	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
jksoft	0:e9f196d85a46	3843	}
jksoft	0:e9f196d85a46	3844
jksoft	0:e9f196d85a46	3845	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
jksoft	0:e9f196d85a46	3846	}
jksoft	0:e9f196d85a46	3847
jksoft	0:e9f196d85a46	3848
jksoft	0:e9f196d85a46	3849	#if _MULTI_PARTITION == 2
jksoft	0:e9f196d85a46	3850	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3851	/* Divide Physical Drive */
jksoft	0:e9f196d85a46	3852	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3853
jksoft	0:e9f196d85a46	3854	FRESULT f_fdisk (
jksoft	0:e9f196d85a46	3855	BYTE pdrv, /* Physical drive number */
jksoft	0:e9f196d85a46	3856	const DWORD szt[], /* Pointer to the size table for each partitions */
jksoft	0:e9f196d85a46	3857	void* work /* Pointer to the working buffer */
jksoft	0:e9f196d85a46	3858	)
jksoft	0:e9f196d85a46	3859	{
jksoft	0:e9f196d85a46	3860	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
jksoft	0:e9f196d85a46	3861	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
jksoft	0:e9f196d85a46	3862	DSTATUS stat;
jksoft	0:e9f196d85a46	3863	DWORD sz_disk, sz_part, s_part;
jksoft	0:e9f196d85a46	3864
jksoft	0:e9f196d85a46	3865
jksoft	0:e9f196d85a46	3866	stat = disk_initialize(pdrv);
jksoft	0:e9f196d85a46	3867	if (stat & STA_NOINIT) return FR_NOT_READY;
jksoft	0:e9f196d85a46	3868	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
jksoft	0:e9f196d85a46	3869	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
jksoft	0:e9f196d85a46	3870
jksoft	0:e9f196d85a46	3871	/* Determine CHS in the table regardless of the drive geometry */
jksoft	0:e9f196d85a46	3872	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
jksoft	0:e9f196d85a46	3873	if (n == 256) n--;
jksoft	0:e9f196d85a46	3874	e_hd = n - 1;
jksoft	0:e9f196d85a46	3875	sz_cyl = 63 * n;
jksoft	0:e9f196d85a46	3876	tot_cyl = sz_disk / sz_cyl;
jksoft	0:e9f196d85a46	3877
jksoft	0:e9f196d85a46	3878	/* Create partition table */
jksoft	0:e9f196d85a46	3879	mem_set(buf, 0, _MAX_SS);
jksoft	0:e9f196d85a46	3880	p = buf + MBR_Table; b_cyl = 0;
jksoft	0:e9f196d85a46	3881	for (i = 0; i < 4; i++, p += SZ_PTE) {
jksoft	0:e9f196d85a46	3882	p_cyl = (szt[i] <= 100) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
jksoft	0:e9f196d85a46	3883	if (!p_cyl) continue;
jksoft	0:e9f196d85a46	3884	s_part = (DWORD)sz_cyl * b_cyl;
jksoft	0:e9f196d85a46	3885	sz_part = (DWORD)sz_cyl * p_cyl;
jksoft	0:e9f196d85a46	3886	if (i == 0) { /* Exclude first track of cylinder 0 */
jksoft	0:e9f196d85a46	3887	s_hd = 1;
jksoft	0:e9f196d85a46	3888	s_part += 63; sz_part -= 63;
jksoft	0:e9f196d85a46	3889	} else {
jksoft	0:e9f196d85a46	3890	s_hd = 0;
jksoft	0:e9f196d85a46	3891	}
jksoft	0:e9f196d85a46	3892	e_cyl = b_cyl + p_cyl - 1;
jksoft	0:e9f196d85a46	3893	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
jksoft	0:e9f196d85a46	3894
jksoft	0:e9f196d85a46	3895	/* Set partition table */
jksoft	0:e9f196d85a46	3896	p[1] = s_hd; /* Start head */
jksoft	0:e9f196d85a46	3897	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
jksoft	0:e9f196d85a46	3898	p[3] = (BYTE)b_cyl; /* Start cylinder */
jksoft	0:e9f196d85a46	3899	p[4] = 0x06; /* System type (temporary setting) */
jksoft	0:e9f196d85a46	3900	p[5] = e_hd; /* End head */
jksoft	0:e9f196d85a46	3901	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
jksoft	0:e9f196d85a46	3902	p[7] = (BYTE)e_cyl; /* End cylinder */
jksoft	0:e9f196d85a46	3903	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
jksoft	0:e9f196d85a46	3904	ST_DWORD(p + 12, sz_part); /* Partition size */
jksoft	0:e9f196d85a46	3905
jksoft	0:e9f196d85a46	3906	/* Next partition */
jksoft	0:e9f196d85a46	3907	b_cyl += p_cyl;
jksoft	0:e9f196d85a46	3908	}
jksoft	0:e9f196d85a46	3909	ST_WORD(p, 0xAA55);
jksoft	0:e9f196d85a46	3910
jksoft	0:e9f196d85a46	3911	/* Write it to the MBR */
jksoft	0:e9f196d85a46	3912	return (disk_write(pdrv, buf, 0, 1) \|\| disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
jksoft	0:e9f196d85a46	3913	}
jksoft	0:e9f196d85a46	3914
jksoft	0:e9f196d85a46	3915
jksoft	0:e9f196d85a46	3916	#endif /* _MULTI_PARTITION == 2 */
jksoft	0:e9f196d85a46	3917	#endif /* _USE_MKFS && !_FS_READONLY */
jksoft	0:e9f196d85a46	3918
jksoft	0:e9f196d85a46	3919
jksoft	0:e9f196d85a46	3920
jksoft	0:e9f196d85a46	3921
jksoft	0:e9f196d85a46	3922	#if _USE_STRFUNC
jksoft	0:e9f196d85a46	3923	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3924	/* Get a string from the file */
jksoft	0:e9f196d85a46	3925	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3926	TCHAR* f_gets (
jksoft	0:e9f196d85a46	3927	TCHAR* buff, /* Pointer to the string buffer to read */
jksoft	0:e9f196d85a46	3928	int len, /* Size of string buffer (characters) */
jksoft	0:e9f196d85a46	3929	FIL* fil /* Pointer to the file object */
jksoft	0:e9f196d85a46	3930	)
jksoft	0:e9f196d85a46	3931	{
jksoft	0:e9f196d85a46	3932	int n = 0;
jksoft	0:e9f196d85a46	3933	TCHAR c, *p = buff;
jksoft	0:e9f196d85a46	3934	BYTE s[2];
jksoft	0:e9f196d85a46	3935	UINT rc;
jksoft	0:e9f196d85a46	3936
jksoft	0:e9f196d85a46	3937
jksoft	0:e9f196d85a46	3938	while (n < len - 1) { /* Read bytes until buffer gets filled */
jksoft	0:e9f196d85a46	3939	f_read(fil, s, 1, &rc);
jksoft	0:e9f196d85a46	3940	if (rc != 1) break; /* Break on EOF or error */
jksoft	0:e9f196d85a46	3941	c = s[0];
jksoft	0:e9f196d85a46	3942	#if _LFN_UNICODE /* Read a character in UTF-8 encoding */
jksoft	0:e9f196d85a46	3943	if (c >= 0x80) {
jksoft	0:e9f196d85a46	3944	if (c < 0xC0) continue; /* Skip stray trailer */
jksoft	0:e9f196d85a46	3945	if (c < 0xE0) { /* Two-byte sequence */
jksoft	0:e9f196d85a46	3946	f_read(fil, s, 1, &rc);
jksoft	0:e9f196d85a46	3947	if (rc != 1) break;
jksoft	0:e9f196d85a46	3948	c = ((c & 0x1F) << 6) \| (s[0] & 0x3F);
jksoft	0:e9f196d85a46	3949	if (c < 0x80) c = '?';
jksoft	0:e9f196d85a46	3950	} else {
jksoft	0:e9f196d85a46	3951	if (c < 0xF0) { /* Three-byte sequence */
jksoft	0:e9f196d85a46	3952	f_read(fil, s, 2, &rc);
jksoft	0:e9f196d85a46	3953	if (rc != 2) break;
jksoft	0:e9f196d85a46	3954	c = (c << 12) \| ((s[0] & 0x3F) << 6) \| (s[1] & 0x3F);
jksoft	0:e9f196d85a46	3955	if (c < 0x800) c = '?';
jksoft	0:e9f196d85a46	3956	} else { /* Reject four-byte sequence */
jksoft	0:e9f196d85a46	3957	c = '?';
jksoft	0:e9f196d85a46	3958	}
jksoft	0:e9f196d85a46	3959	}
jksoft	0:e9f196d85a46	3960	}
jksoft	0:e9f196d85a46	3961	#endif
jksoft	0:e9f196d85a46	3962	#if _USE_STRFUNC >= 2
jksoft	0:e9f196d85a46	3963	if (c == '\r') continue; /* Strip '\r' */
jksoft	0:e9f196d85a46	3964	#endif
jksoft	0:e9f196d85a46	3965	*p++ = c;
jksoft	0:e9f196d85a46	3966	n++;
jksoft	0:e9f196d85a46	3967	if (c == '\n') break; /* Break on EOL */
jksoft	0:e9f196d85a46	3968	}
jksoft	0:e9f196d85a46	3969	*p = 0;
jksoft	0:e9f196d85a46	3970	return n ? buff : 0; /* When no data read (eof or error), return with error. */
jksoft	0:e9f196d85a46	3971	}
jksoft	0:e9f196d85a46	3972
jksoft	0:e9f196d85a46	3973
jksoft	0:e9f196d85a46	3974
jksoft	0:e9f196d85a46	3975	#if !_FS_READONLY
jksoft	0:e9f196d85a46	3976	#include <stdarg.h>
jksoft	0:e9f196d85a46	3977	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3978	/* Put a character to the file */
jksoft	0:e9f196d85a46	3979	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	3980	int f_putc (
jksoft	0:e9f196d85a46	3981	TCHAR c, /* A character to be output */
jksoft	0:e9f196d85a46	3982	FIL* fil /* Pointer to the file object */
jksoft	0:e9f196d85a46	3983	)
jksoft	0:e9f196d85a46	3984	{
jksoft	0:e9f196d85a46	3985	UINT bw, btw;
jksoft	0:e9f196d85a46	3986	BYTE s[3];
jksoft	0:e9f196d85a46	3987
jksoft	0:e9f196d85a46	3988
jksoft	0:e9f196d85a46	3989	#if _USE_STRFUNC >= 2
jksoft	0:e9f196d85a46	3990	if (c == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */
jksoft	0:e9f196d85a46	3991	#endif
jksoft	0:e9f196d85a46	3992
jksoft	0:e9f196d85a46	3993	#if _LFN_UNICODE /* Write the character in UTF-8 encoding */
jksoft	0:e9f196d85a46	3994	if (c < 0x80) { /* 7-bit */
jksoft	0:e9f196d85a46	3995	s[0] = (BYTE)c;
jksoft	0:e9f196d85a46	3996	btw = 1;
jksoft	0:e9f196d85a46	3997	} else {
jksoft	0:e9f196d85a46	3998	if (c < 0x800) { /* 11-bit */
jksoft	0:e9f196d85a46	3999	s[0] = (BYTE)(0xC0 \| (c >> 6));
jksoft	0:e9f196d85a46	4000	s[1] = (BYTE)(0x80 \| (c & 0x3F));
jksoft	0:e9f196d85a46	4001	btw = 2;
jksoft	0:e9f196d85a46	4002	} else { /* 16-bit */
jksoft	0:e9f196d85a46	4003	s[0] = (BYTE)(0xE0 \| (c >> 12));
jksoft	0:e9f196d85a46	4004	s[1] = (BYTE)(0x80 \| ((c >> 6) & 0x3F));
jksoft	0:e9f196d85a46	4005	s[2] = (BYTE)(0x80 \| (c & 0x3F));
jksoft	0:e9f196d85a46	4006	btw = 3;
jksoft	0:e9f196d85a46	4007	}
jksoft	0:e9f196d85a46	4008	}
jksoft	0:e9f196d85a46	4009	#else /* Write the character without conversion */
jksoft	0:e9f196d85a46	4010	s[0] = (BYTE)c;
jksoft	0:e9f196d85a46	4011	btw = 1;
jksoft	0:e9f196d85a46	4012	#endif
jksoft	0:e9f196d85a46	4013	f_write(fil, s, btw, &bw); /* Write the char to the file */
jksoft	0:e9f196d85a46	4014	return (bw == btw) ? 1 : EOF; /* Return the result */
jksoft	0:e9f196d85a46	4015	}
jksoft	0:e9f196d85a46	4016
jksoft	0:e9f196d85a46	4017
jksoft	0:e9f196d85a46	4018
jksoft	0:e9f196d85a46	4019
jksoft	0:e9f196d85a46	4020	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	4021	/* Put a string to the file */
jksoft	0:e9f196d85a46	4022	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	4023	int f_puts (
jksoft	0:e9f196d85a46	4024	const TCHAR* str, /* Pointer to the string to be output */
jksoft	0:e9f196d85a46	4025	FIL* fil /* Pointer to the file object */
jksoft	0:e9f196d85a46	4026	)
jksoft	0:e9f196d85a46	4027	{
jksoft	0:e9f196d85a46	4028	int n;
jksoft	0:e9f196d85a46	4029
jksoft	0:e9f196d85a46	4030
jksoft	0:e9f196d85a46	4031	for (n = 0; *str; str++, n++) {
jksoft	0:e9f196d85a46	4032	if (f_putc(*str, fil) == EOF) return EOF;
jksoft	0:e9f196d85a46	4033	}
jksoft	0:e9f196d85a46	4034	return n;
jksoft	0:e9f196d85a46	4035	}
jksoft	0:e9f196d85a46	4036
jksoft	0:e9f196d85a46	4037
jksoft	0:e9f196d85a46	4038
jksoft	0:e9f196d85a46	4039
jksoft	0:e9f196d85a46	4040	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	4041	/* Put a formatted string to the file */
jksoft	0:e9f196d85a46	4042	/-----------------------------------------------------------------------/
jksoft	0:e9f196d85a46	4043	int f_printf (
jksoft	0:e9f196d85a46	4044	FIL* fil, /* Pointer to the file object */
jksoft	0:e9f196d85a46	4045	const TCHAR* str, /* Pointer to the format string */
jksoft	0:e9f196d85a46	4046	... /* Optional arguments... */
jksoft	0:e9f196d85a46	4047	)
jksoft	0:e9f196d85a46	4048	{
jksoft	0:e9f196d85a46	4049	va_list arp;
jksoft	0:e9f196d85a46	4050	BYTE f, r;
jksoft	0:e9f196d85a46	4051	UINT i, j, w;
jksoft	0:e9f196d85a46	4052	ULONG v;
jksoft	0:e9f196d85a46	4053	TCHAR c, d, s[16], *p;
jksoft	0:e9f196d85a46	4054	int res, chc, cc;
jksoft	0:e9f196d85a46	4055
jksoft	0:e9f196d85a46	4056
jksoft	0:e9f196d85a46	4057	va_start(arp, str);
jksoft	0:e9f196d85a46	4058
jksoft	0:e9f196d85a46	4059	for (cc = res = 0; cc != EOF; res += cc) {
jksoft	0:e9f196d85a46	4060	c = *str++;
jksoft	0:e9f196d85a46	4061	if (c == 0) break; /* End of string */
jksoft	0:e9f196d85a46	4062	if (c != '%') { /* Non escape character */
jksoft	0:e9f196d85a46	4063	cc = f_putc(c, fil);
jksoft	0:e9f196d85a46	4064	if (cc != EOF) cc = 1;
jksoft	0:e9f196d85a46	4065	continue;
jksoft	0:e9f196d85a46	4066	}
jksoft	0:e9f196d85a46	4067	w = f = 0;
jksoft	0:e9f196d85a46	4068	c = *str++;
jksoft	0:e9f196d85a46	4069	if (c == '0') { /* Flag: '0' padding */
jksoft	0:e9f196d85a46	4070	f = 1; c = *str++;
jksoft	0:e9f196d85a46	4071	} else {
jksoft	0:e9f196d85a46	4072	if (c == '-') { /* Flag: left justified */
jksoft	0:e9f196d85a46	4073	f = 2; c = *str++;
jksoft	0:e9f196d85a46	4074	}
jksoft	0:e9f196d85a46	4075	}
jksoft	0:e9f196d85a46	4076	while (IsDigit(c)) { /* Precision */
jksoft	0:e9f196d85a46	4077	w = w * 10 + c - '0';
jksoft	0:e9f196d85a46	4078	c = *str++;
jksoft	0:e9f196d85a46	4079	}
jksoft	0:e9f196d85a46	4080	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
jksoft	0:e9f196d85a46	4081	f \|= 4; c = *str++;
jksoft	0:e9f196d85a46	4082	}
jksoft	0:e9f196d85a46	4083	if (!c) break;
jksoft	0:e9f196d85a46	4084	d = c;
jksoft	0:e9f196d85a46	4085	if (IsLower(d)) d -= 0x20;
jksoft	0:e9f196d85a46	4086	switch (d) { /* Type is... */
jksoft	0:e9f196d85a46	4087	case 'S' : /* String */
jksoft	0:e9f196d85a46	4088	p = va_arg(arp, TCHAR*);
jksoft	0:e9f196d85a46	4089	for (j = 0; p[j]; j++) ;
jksoft	0:e9f196d85a46	4090	chc = 0;
jksoft	0:e9f196d85a46	4091	if (!(f & 2)) {
jksoft	0:e9f196d85a46	4092	while (j++ < w) chc += (cc = f_putc(' ', fil));
jksoft	0:e9f196d85a46	4093	}
jksoft	0:e9f196d85a46	4094	chc += (cc = f_puts(p, fil));
jksoft	0:e9f196d85a46	4095	while (j++ < w) chc += (cc = f_putc(' ', fil));
jksoft	0:e9f196d85a46	4096	if (cc != EOF) cc = chc;
jksoft	0:e9f196d85a46	4097	continue;
jksoft	0:e9f196d85a46	4098	case 'C' : /* Character */
jksoft	0:e9f196d85a46	4099	cc = f_putc((TCHAR)va_arg(arp, int), fil); continue;
jksoft	0:e9f196d85a46	4100	case 'B' : /* Binary */
jksoft	0:e9f196d85a46	4101	r = 2; break;
jksoft	0:e9f196d85a46	4102	case 'O' : /* Octal */
jksoft	0:e9f196d85a46	4103	r = 8; break;
jksoft	0:e9f196d85a46	4104	case 'D' : /* Signed decimal */
jksoft	0:e9f196d85a46	4105	case 'U' : /* Unsigned decimal */
jksoft	0:e9f196d85a46	4106	r = 10; break;
jksoft	0:e9f196d85a46	4107	case 'X' : /* Hexdecimal */
jksoft	0:e9f196d85a46	4108	r = 16; break;
jksoft	0:e9f196d85a46	4109	default: /* Unknown type (pass-through) */
jksoft	0:e9f196d85a46	4110	cc = f_putc(c, fil); continue;
jksoft	0:e9f196d85a46	4111	}
jksoft	0:e9f196d85a46	4112
jksoft	0:e9f196d85a46	4113	/* Get an argument and put it in numeral */
jksoft	0:e9f196d85a46	4114	v = (f & 4) ? (ULONG)va_arg(arp, long) : ((d == 'D') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int));
jksoft	0:e9f196d85a46	4115	if (d == 'D' && (v & 0x80000000)) {
jksoft	0:e9f196d85a46	4116	v = 0 - v;
jksoft	0:e9f196d85a46	4117	f \|= 8;
jksoft	0:e9f196d85a46	4118	}
jksoft	0:e9f196d85a46	4119	i = 0;
jksoft	0:e9f196d85a46	4120	do {
jksoft	0:e9f196d85a46	4121	d = (TCHAR)(v % r); v /= r;
jksoft	0:e9f196d85a46	4122	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
jksoft	0:e9f196d85a46	4123	s[i++] = d + '0';
jksoft	0:e9f196d85a46	4124	} while (v && i < sizeof s / sizeof s[0]);
jksoft	0:e9f196d85a46	4125	if (f & 8) s[i++] = '-';
jksoft	0:e9f196d85a46	4126	j = i; d = (f & 1) ? '0' : ' ';
jksoft	0:e9f196d85a46	4127	res = 0;
jksoft	0:e9f196d85a46	4128	while (!(f & 2) && j++ < w) res += (cc = f_putc(d, fil));
jksoft	0:e9f196d85a46	4129	do res += (cc = f_putc(s[--i], fil)); while(i);
jksoft	0:e9f196d85a46	4130	while (j++ < w) res += (cc = f_putc(' ', fil));
jksoft	0:e9f196d85a46	4131	if (cc != EOF) cc = res;
jksoft	0:e9f196d85a46	4132	}
jksoft	0:e9f196d85a46	4133
jksoft	0:e9f196d85a46	4134	va_end(arp);
jksoft	0:e9f196d85a46	4135	return (cc == EOF) ? cc : res;
jksoft	0:e9f196d85a46	4136	}
jksoft	0:e9f196d85a46	4137
jksoft	0:e9f196d85a46	4138	#endif /* !_FS_READONLY */
jksoft	0:e9f196d85a46	4139	#endif /* _USE_STRFUNC */

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	12 May 2014
Imports:	0
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	2
Followers:	5

This repository is Public (Unlisted).

SDFileSystem/FATFileSystem/ChaN/ff.cpp@0:e9f196d85a46, 2014-05-12 (annotated)

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