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Toshihisa T / Mbed 2 deprecated ENVLogger

Dependencies: ChaNFSSD mbed BMP085 SHT2x

ChaNFS/CHAN_FS/ff.c@9:9ca3db7ed7cb, 2012-02-27 (annotated)

Committer:: tosihisa
Date:: Mon Feb 27 16:20:15 2012 +0000
Revision:: 9:9ca3db7ed7cb

V0.89.2. GPS recv data is OK.

Who changed what in which revision?

User	Revision	Line number	New contents of line
tosihisa	9:9ca3db7ed7cb	1	/*----------------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2	/ FatFs - FAT file system module R0.08b (C)ChaN, 2011
tosihisa	9:9ca3db7ed7cb	3	/-----------------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	4	/ FatFs module is a generic FAT file system module for small embedded systems.
tosihisa	9:9ca3db7ed7cb	5	/ This is a free software that opened for education, research and commercial
tosihisa	9:9ca3db7ed7cb	6	/ developments under license policy of following terms.
tosihisa	9:9ca3db7ed7cb	7	/
tosihisa	9:9ca3db7ed7cb	8	/ Copyright (C) 2011, ChaN, all right reserved.
tosihisa	9:9ca3db7ed7cb	9	/
tosihisa	9:9ca3db7ed7cb	10	/ * The FatFs module is a free software and there is NO WARRANTY.
tosihisa	9:9ca3db7ed7cb	11	/ * No restriction on use. You can use, modify and redistribute it for
tosihisa	9:9ca3db7ed7cb	12	/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
tosihisa	9:9ca3db7ed7cb	13	/ * Redistributions of source code must retain the above copyright notice.
tosihisa	9:9ca3db7ed7cb	14	/
tosihisa	9:9ca3db7ed7cb	15	/-----------------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	16	/ Feb 26,'06 R0.00 Prototype.
tosihisa	9:9ca3db7ed7cb	17	/
tosihisa	9:9ca3db7ed7cb	18	/ Apr 29,'06 R0.01 First stable version.
tosihisa	9:9ca3db7ed7cb	19	/
tosihisa	9:9ca3db7ed7cb	20	/ Jun 01,'06 R0.02 Added FAT12 support.
tosihisa	9:9ca3db7ed7cb	21	/ Removed unbuffered mode.
tosihisa	9:9ca3db7ed7cb	22	/ Fixed a problem on small (<32M) partition.
tosihisa	9:9ca3db7ed7cb	23	/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
tosihisa	9:9ca3db7ed7cb	24	/
tosihisa	9:9ca3db7ed7cb	25	/ Sep 22,'06 R0.03 Added f_rename().
tosihisa	9:9ca3db7ed7cb	26	/ Changed option _FS_MINIMUM to _FS_MINIMIZE.
tosihisa	9:9ca3db7ed7cb	27	/ Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
tosihisa	9:9ca3db7ed7cb	28	/ Fixed f_mkdir() creates incorrect directory on FAT32.
tosihisa	9:9ca3db7ed7cb	29	/
tosihisa	9:9ca3db7ed7cb	30	/ Feb 04,'07 R0.04 Supported multiple drive system.
tosihisa	9:9ca3db7ed7cb	31	/ Changed some interfaces for multiple drive system.
tosihisa	9:9ca3db7ed7cb	32	/ Changed f_mountdrv() to f_mount().
tosihisa	9:9ca3db7ed7cb	33	/ Added f_mkfs().
tosihisa	9:9ca3db7ed7cb	34	/ Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
tosihisa	9:9ca3db7ed7cb	35	/ Added a capability of extending file size to f_lseek().
tosihisa	9:9ca3db7ed7cb	36	/ Added minimization level 3.
tosihisa	9:9ca3db7ed7cb	37	/ Fixed an endian sensitive code in f_mkfs().
tosihisa	9:9ca3db7ed7cb	38	/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
tosihisa	9:9ca3db7ed7cb	39	/ Added FSInfo support.
tosihisa	9:9ca3db7ed7cb	40	/ Fixed DBCS name can result FR_INVALID_NAME.
tosihisa	9:9ca3db7ed7cb	41	/ Fixed short seek (<= csize) collapses the file object.
tosihisa	9:9ca3db7ed7cb	42	/
tosihisa	9:9ca3db7ed7cb	43	/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
tosihisa	9:9ca3db7ed7cb	44	/ Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
tosihisa	9:9ca3db7ed7cb	45	/ Fixed f_mkdir() on FAT32 creates incorrect directory.
tosihisa	9:9ca3db7ed7cb	46	/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
tosihisa	9:9ca3db7ed7cb	47	/ Fixed off by one error at FAT sub-type determination.
tosihisa	9:9ca3db7ed7cb	48	/ Fixed btr in f_read() can be mistruncated.
tosihisa	9:9ca3db7ed7cb	49	/ Fixed cached sector is not flushed when create and close without write.
tosihisa	9:9ca3db7ed7cb	50	/
tosihisa	9:9ca3db7ed7cb	51	/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
tosihisa	9:9ca3db7ed7cb	52	/ Improved performance of f_lseek() on moving to the same or following cluster.
tosihisa	9:9ca3db7ed7cb	53	/
tosihisa	9:9ca3db7ed7cb	54	/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
tosihisa	9:9ca3db7ed7cb	55	/ Added long file name feature.
tosihisa	9:9ca3db7ed7cb	56	/ Added multiple code page feature.
tosihisa	9:9ca3db7ed7cb	57	/ Added re-entrancy for multitask operation.
tosihisa	9:9ca3db7ed7cb	58	/ Added auto cluster size selection to f_mkfs().
tosihisa	9:9ca3db7ed7cb	59	/ Added rewind option to f_readdir().
tosihisa	9:9ca3db7ed7cb	60	/ Changed result code of critical errors.
tosihisa	9:9ca3db7ed7cb	61	/ Renamed string functions to avoid name collision.
tosihisa	9:9ca3db7ed7cb	62	/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
tosihisa	9:9ca3db7ed7cb	63	/ Added multiple sector size feature.
tosihisa	9:9ca3db7ed7cb	64	/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
tosihisa	9:9ca3db7ed7cb	65	/ Fixed wrong cache control in f_lseek().
tosihisa	9:9ca3db7ed7cb	66	/ Added relative path feature.
tosihisa	9:9ca3db7ed7cb	67	/ Added f_chdir() and f_chdrive().
tosihisa	9:9ca3db7ed7cb	68	/ Added proper case conversion to extended char.
tosihisa	9:9ca3db7ed7cb	69	/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
tosihisa	9:9ca3db7ed7cb	70	/ Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
tosihisa	9:9ca3db7ed7cb	71	/ Fixed name matching error on the 13 char boundary.
tosihisa	9:9ca3db7ed7cb	72	/ Added a configuration option, _LFN_UNICODE.
tosihisa	9:9ca3db7ed7cb	73	/ Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
tosihisa	9:9ca3db7ed7cb	74	/
tosihisa	9:9ca3db7ed7cb	75	/ May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
tosihisa	9:9ca3db7ed7cb	76	/ Added file lock feature. (_FS_SHARE)
tosihisa	9:9ca3db7ed7cb	77	/ Added fast seek feature. (_USE_FASTSEEK)
tosihisa	9:9ca3db7ed7cb	78	/ Changed some types on the API, XCHAR->TCHAR.
tosihisa	9:9ca3db7ed7cb	79	/ Changed fname member in the FILINFO structure on Unicode cfg.
tosihisa	9:9ca3db7ed7cb	80	/ String functions support UTF-8 encoding files on Unicode cfg.
tosihisa	9:9ca3db7ed7cb	81	/ Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
tosihisa	9:9ca3db7ed7cb	82	/ Added sector erase feature. (_USE_ERASE)
tosihisa	9:9ca3db7ed7cb	83	/ Moved file lock semaphore table from fs object to the bss.
tosihisa	9:9ca3db7ed7cb	84	/ Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
tosihisa	9:9ca3db7ed7cb	85	/ Fixed f_mkfs() creates wrong FAT32 volume.
tosihisa	9:9ca3db7ed7cb	86	/ Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
tosihisa	9:9ca3db7ed7cb	87	/ f_lseek() reports required table size on creating CLMP.
tosihisa	9:9ca3db7ed7cb	88	/ Extended format syntax of f_printf function.
tosihisa	9:9ca3db7ed7cb	89	/ Ignores duplicated directory separators in given path names.
tosihisa	9:9ca3db7ed7cb	90	/---------------------------------------------------------------------------*/
tosihisa	9:9ca3db7ed7cb	91
tosihisa	9:9ca3db7ed7cb	92	#include "ff.h" /* FatFs configurations and declarations */
tosihisa	9:9ca3db7ed7cb	93	#include "diskio.h" /* Declarations of low level disk I/O functions */
tosihisa	9:9ca3db7ed7cb	94	#include "mbed.h"
tosihisa	9:9ca3db7ed7cb	95
tosihisa	9:9ca3db7ed7cb	96
tosihisa	9:9ca3db7ed7cb	97	/*--------------------------------------------------------------------------
tosihisa	9:9ca3db7ed7cb	98
tosihisa	9:9ca3db7ed7cb	99	Module Private Definitions
tosihisa	9:9ca3db7ed7cb	100
tosihisa	9:9ca3db7ed7cb	101	---------------------------------------------------------------------------*/
tosihisa	9:9ca3db7ed7cb	102
tosihisa	9:9ca3db7ed7cb	103	#if _FATFS != 8237
tosihisa	9:9ca3db7ed7cb	104	#error Wrong include file (ff.h).
tosihisa	9:9ca3db7ed7cb	105	#endif
tosihisa	9:9ca3db7ed7cb	106
tosihisa	9:9ca3db7ed7cb	107
tosihisa	9:9ca3db7ed7cb	108	/* Definitions on sector size */
tosihisa	9:9ca3db7ed7cb	109	#if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
tosihisa	9:9ca3db7ed7cb	110	#error Wrong sector size.
tosihisa	9:9ca3db7ed7cb	111	#endif
tosihisa	9:9ca3db7ed7cb	112	#if _MAX_SS != 512
tosihisa	9:9ca3db7ed7cb	113	#define SS(fs) ((fs)->ssize) /* Multiple sector size */
tosihisa	9:9ca3db7ed7cb	114	#else
tosihisa	9:9ca3db7ed7cb	115	#define SS(fs) 512U /* Fixed sector size */
tosihisa	9:9ca3db7ed7cb	116	#endif
tosihisa	9:9ca3db7ed7cb	117
tosihisa	9:9ca3db7ed7cb	118
tosihisa	9:9ca3db7ed7cb	119	/* Reentrancy related */
tosihisa	9:9ca3db7ed7cb	120	#if _FS_REENTRANT
tosihisa	9:9ca3db7ed7cb	121	#if _USE_LFN == 1
tosihisa	9:9ca3db7ed7cb	122	#error Static LFN work area must not be used in re-entrant configuration.
tosihisa	9:9ca3db7ed7cb	123	#endif
tosihisa	9:9ca3db7ed7cb	124	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
tosihisa	9:9ca3db7ed7cb	125	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
tosihisa	9:9ca3db7ed7cb	126	#else
tosihisa	9:9ca3db7ed7cb	127	#define ENTER_FF(fs)
tosihisa	9:9ca3db7ed7cb	128	#define LEAVE_FF(fs, res) return res
tosihisa	9:9ca3db7ed7cb	129	#endif
tosihisa	9:9ca3db7ed7cb	130
tosihisa	9:9ca3db7ed7cb	131	#define ABORT(fs, res) { fp->flag \|= FA__ERROR; LEAVE_FF(fs, res); }
tosihisa	9:9ca3db7ed7cb	132
tosihisa	9:9ca3db7ed7cb	133
tosihisa	9:9ca3db7ed7cb	134	/* File shareing feature */
tosihisa	9:9ca3db7ed7cb	135	#if _FS_SHARE
tosihisa	9:9ca3db7ed7cb	136	#if _FS_READONLY
tosihisa	9:9ca3db7ed7cb	137	#error _FS_SHARE must be 0 on read-only cfg.
tosihisa	9:9ca3db7ed7cb	138	#endif
tosihisa	9:9ca3db7ed7cb	139	typedef struct {
tosihisa	9:9ca3db7ed7cb	140	FATFS fs; / File ID 1, volume (NULL:blank entry) */
tosihisa	9:9ca3db7ed7cb	141	DWORD clu; /* File ID 2, directory */
tosihisa	9:9ca3db7ed7cb	142	WORD idx; /* File ID 3, directory index */
tosihisa	9:9ca3db7ed7cb	143	WORD ctr; /* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:write mode */
tosihisa	9:9ca3db7ed7cb	144	} FILESEM;
tosihisa	9:9ca3db7ed7cb	145	#endif
tosihisa	9:9ca3db7ed7cb	146
tosihisa	9:9ca3db7ed7cb	147
tosihisa	9:9ca3db7ed7cb	148	/* Misc definitions */
tosihisa	9:9ca3db7ed7cb	149	#define LD_CLUST(dir) (((DWORD)LD_WORD(dir+DIR_FstClusHI)<<16) \| LD_WORD(dir+DIR_FstClusLO))
tosihisa	9:9ca3db7ed7cb	150	#define ST_CLUST(dir,cl) {ST_WORD(dir+DIR_FstClusLO, cl); ST_WORD(dir+DIR_FstClusHI, (DWORD)cl>>16);}
tosihisa	9:9ca3db7ed7cb	151
tosihisa	9:9ca3db7ed7cb	152
tosihisa	9:9ca3db7ed7cb	153	/* DBCS code ranges and SBCS extend char conversion table */
tosihisa	9:9ca3db7ed7cb	154
tosihisa	9:9ca3db7ed7cb	155	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
tosihisa	9:9ca3db7ed7cb	156	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
tosihisa	9:9ca3db7ed7cb	157	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
tosihisa	9:9ca3db7ed7cb	158	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
tosihisa	9:9ca3db7ed7cb	159	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
tosihisa	9:9ca3db7ed7cb	160	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
tosihisa	9:9ca3db7ed7cb	161	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
tosihisa	9:9ca3db7ed7cb	162	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
tosihisa	9:9ca3db7ed7cb	163	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
tosihisa	9:9ca3db7ed7cb	164
tosihisa	9:9ca3db7ed7cb	165	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
tosihisa	9:9ca3db7ed7cb	166	#define _DF1S 0x81
tosihisa	9:9ca3db7ed7cb	167	#define _DF1E 0xFE
tosihisa	9:9ca3db7ed7cb	168	#define _DS1S 0x40
tosihisa	9:9ca3db7ed7cb	169	#define _DS1E 0x7E
tosihisa	9:9ca3db7ed7cb	170	#define _DS2S 0x80
tosihisa	9:9ca3db7ed7cb	171	#define _DS2E 0xFE
tosihisa	9:9ca3db7ed7cb	172
tosihisa	9:9ca3db7ed7cb	173	#elif _CODE_PAGE == 949 /* Korean */
tosihisa	9:9ca3db7ed7cb	174	#define _DF1S 0x81
tosihisa	9:9ca3db7ed7cb	175	#define _DF1E 0xFE
tosihisa	9:9ca3db7ed7cb	176	#define _DS1S 0x41
tosihisa	9:9ca3db7ed7cb	177	#define _DS1E 0x5A
tosihisa	9:9ca3db7ed7cb	178	#define _DS2S 0x61
tosihisa	9:9ca3db7ed7cb	179	#define _DS2E 0x7A
tosihisa	9:9ca3db7ed7cb	180	#define _DS3S 0x81
tosihisa	9:9ca3db7ed7cb	181	#define _DS3E 0xFE
tosihisa	9:9ca3db7ed7cb	182
tosihisa	9:9ca3db7ed7cb	183	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
tosihisa	9:9ca3db7ed7cb	184	#define _DF1S 0x81
tosihisa	9:9ca3db7ed7cb	185	#define _DF1E 0xFE
tosihisa	9:9ca3db7ed7cb	186	#define _DS1S 0x40
tosihisa	9:9ca3db7ed7cb	187	#define _DS1E 0x7E
tosihisa	9:9ca3db7ed7cb	188	#define _DS2S 0xA1
tosihisa	9:9ca3db7ed7cb	189	#define _DS2E 0xFE
tosihisa	9:9ca3db7ed7cb	190
tosihisa	9:9ca3db7ed7cb	191	#elif _CODE_PAGE == 437 /* U.S. (OEM) */
tosihisa	9:9ca3db7ed7cb	192	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	193	#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, \
tosihisa	9:9ca3db7ed7cb	194	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, \
tosihisa	9:9ca3db7ed7cb	195	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, \
tosihisa	9:9ca3db7ed7cb	196	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}
tosihisa	9:9ca3db7ed7cb	197
tosihisa	9:9ca3db7ed7cb	198	#elif _CODE_PAGE == 720 /* Arabic (OEM) */
tosihisa	9:9ca3db7ed7cb	199	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	200	#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, \
tosihisa	9:9ca3db7ed7cb	201	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, \
tosihisa	9:9ca3db7ed7cb	202	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, \
tosihisa	9:9ca3db7ed7cb	203	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}
tosihisa	9:9ca3db7ed7cb	204
tosihisa	9:9ca3db7ed7cb	205	#elif _CODE_PAGE == 737 /* Greek (OEM) */
tosihisa	9:9ca3db7ed7cb	206	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	207	#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, \
tosihisa	9:9ca3db7ed7cb	208	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, \
tosihisa	9:9ca3db7ed7cb	209	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, \
tosihisa	9:9ca3db7ed7cb	210	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}
tosihisa	9:9ca3db7ed7cb	211
tosihisa	9:9ca3db7ed7cb	212	#elif _CODE_PAGE == 775 /* Baltic (OEM) */
tosihisa	9:9ca3db7ed7cb	213	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	214	#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, \
tosihisa	9:9ca3db7ed7cb	215	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, \
tosihisa	9:9ca3db7ed7cb	216	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, \
tosihisa	9:9ca3db7ed7cb	217	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}
tosihisa	9:9ca3db7ed7cb	218
tosihisa	9:9ca3db7ed7cb	219	#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
tosihisa	9:9ca3db7ed7cb	220	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	221	#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, \
tosihisa	9:9ca3db7ed7cb	222	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, \
tosihisa	9:9ca3db7ed7cb	223	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, \
tosihisa	9:9ca3db7ed7cb	224	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}
tosihisa	9:9ca3db7ed7cb	225
tosihisa	9:9ca3db7ed7cb	226	#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
tosihisa	9:9ca3db7ed7cb	227	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	228	#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, \
tosihisa	9:9ca3db7ed7cb	229	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, \
tosihisa	9:9ca3db7ed7cb	230	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, \
tosihisa	9:9ca3db7ed7cb	231	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}
tosihisa	9:9ca3db7ed7cb	232
tosihisa	9:9ca3db7ed7cb	233	#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
tosihisa	9:9ca3db7ed7cb	234	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	235	#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, \
tosihisa	9:9ca3db7ed7cb	236	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, \
tosihisa	9:9ca3db7ed7cb	237	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, \
tosihisa	9:9ca3db7ed7cb	238	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}
tosihisa	9:9ca3db7ed7cb	239
tosihisa	9:9ca3db7ed7cb	240	#elif _CODE_PAGE == 857 /* Turkish (OEM) */
tosihisa	9:9ca3db7ed7cb	241	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	242	#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, \
tosihisa	9:9ca3db7ed7cb	243	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, \
tosihisa	9:9ca3db7ed7cb	244	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, \
tosihisa	9:9ca3db7ed7cb	245	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}
tosihisa	9:9ca3db7ed7cb	246
tosihisa	9:9ca3db7ed7cb	247	#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
tosihisa	9:9ca3db7ed7cb	248	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	249	#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, \
tosihisa	9:9ca3db7ed7cb	250	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, \
tosihisa	9:9ca3db7ed7cb	251	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, \
tosihisa	9:9ca3db7ed7cb	252	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}
tosihisa	9:9ca3db7ed7cb	253
tosihisa	9:9ca3db7ed7cb	254	#elif _CODE_PAGE == 862 /* Hebrew (OEM) */
tosihisa	9:9ca3db7ed7cb	255	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	256	#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, \
tosihisa	9:9ca3db7ed7cb	257	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, \
tosihisa	9:9ca3db7ed7cb	258	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, \
tosihisa	9:9ca3db7ed7cb	259	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}
tosihisa	9:9ca3db7ed7cb	260
tosihisa	9:9ca3db7ed7cb	261	#elif _CODE_PAGE == 866 /* Russian (OEM) */
tosihisa	9:9ca3db7ed7cb	262	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	263	#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, \
tosihisa	9:9ca3db7ed7cb	264	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, \
tosihisa	9:9ca3db7ed7cb	265	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, \
tosihisa	9:9ca3db7ed7cb	266	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}
tosihisa	9:9ca3db7ed7cb	267
tosihisa	9:9ca3db7ed7cb	268	#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
tosihisa	9:9ca3db7ed7cb	269	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	270	#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, \
tosihisa	9:9ca3db7ed7cb	271	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, \
tosihisa	9:9ca3db7ed7cb	272	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, \
tosihisa	9:9ca3db7ed7cb	273	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}
tosihisa	9:9ca3db7ed7cb	274
tosihisa	9:9ca3db7ed7cb	275	#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
tosihisa	9:9ca3db7ed7cb	276	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	277	#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, \
tosihisa	9:9ca3db7ed7cb	278	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, \
tosihisa	9:9ca3db7ed7cb	279	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, \
tosihisa	9:9ca3db7ed7cb	280	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}
tosihisa	9:9ca3db7ed7cb	281
tosihisa	9:9ca3db7ed7cb	282	#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
tosihisa	9:9ca3db7ed7cb	283	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	284	#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, \
tosihisa	9:9ca3db7ed7cb	285	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, \
tosihisa	9:9ca3db7ed7cb	286	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, \
tosihisa	9:9ca3db7ed7cb	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}
tosihisa	9:9ca3db7ed7cb	288
tosihisa	9:9ca3db7ed7cb	289	#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
tosihisa	9:9ca3db7ed7cb	290	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	291	#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, \
tosihisa	9:9ca3db7ed7cb	292	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, \
tosihisa	9:9ca3db7ed7cb	293	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, \
tosihisa	9:9ca3db7ed7cb	294	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}
tosihisa	9:9ca3db7ed7cb	295
tosihisa	9:9ca3db7ed7cb	296	#elif _CODE_PAGE == 1253 /* Greek (Windows) */
tosihisa	9:9ca3db7ed7cb	297	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	298	#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, \
tosihisa	9:9ca3db7ed7cb	299	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, \
tosihisa	9:9ca3db7ed7cb	300	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, \
tosihisa	9:9ca3db7ed7cb	301	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}
tosihisa	9:9ca3db7ed7cb	302
tosihisa	9:9ca3db7ed7cb	303	#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
tosihisa	9:9ca3db7ed7cb	304	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	305	#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, \
tosihisa	9:9ca3db7ed7cb	306	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, \
tosihisa	9:9ca3db7ed7cb	307	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, \
tosihisa	9:9ca3db7ed7cb	308	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}
tosihisa	9:9ca3db7ed7cb	309
tosihisa	9:9ca3db7ed7cb	310	#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
tosihisa	9:9ca3db7ed7cb	311	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	312	#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, \
tosihisa	9:9ca3db7ed7cb	313	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, \
tosihisa	9:9ca3db7ed7cb	314	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, \
tosihisa	9:9ca3db7ed7cb	315	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}
tosihisa	9:9ca3db7ed7cb	316
tosihisa	9:9ca3db7ed7cb	317	#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
tosihisa	9:9ca3db7ed7cb	318	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	319	#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, \
tosihisa	9:9ca3db7ed7cb	320	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, \
tosihisa	9:9ca3db7ed7cb	321	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, \
tosihisa	9:9ca3db7ed7cb	322	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}
tosihisa	9:9ca3db7ed7cb	323
tosihisa	9:9ca3db7ed7cb	324	#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
tosihisa	9:9ca3db7ed7cb	325	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	326	#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, \
tosihisa	9:9ca3db7ed7cb	327	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, \
tosihisa	9:9ca3db7ed7cb	328	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, \
tosihisa	9:9ca3db7ed7cb	329	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}
tosihisa	9:9ca3db7ed7cb	330
tosihisa	9:9ca3db7ed7cb	331	#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
tosihisa	9:9ca3db7ed7cb	332	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	333	#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, \
tosihisa	9:9ca3db7ed7cb	334	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, \
tosihisa	9:9ca3db7ed7cb	335	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, \
tosihisa	9:9ca3db7ed7cb	336	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}
tosihisa	9:9ca3db7ed7cb	337
tosihisa	9:9ca3db7ed7cb	338	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
tosihisa	9:9ca3db7ed7cb	339	#if _USE_LFN
tosihisa	9:9ca3db7ed7cb	340	#error Cannot use LFN feature without valid code page.
tosihisa	9:9ca3db7ed7cb	341	#endif
tosihisa	9:9ca3db7ed7cb	342	#define _DF1S 0
tosihisa	9:9ca3db7ed7cb	343
tosihisa	9:9ca3db7ed7cb	344	#else
tosihisa	9:9ca3db7ed7cb	345	#error Unknown code page
tosihisa	9:9ca3db7ed7cb	346
tosihisa	9:9ca3db7ed7cb	347	#endif
tosihisa	9:9ca3db7ed7cb	348
tosihisa	9:9ca3db7ed7cb	349
tosihisa	9:9ca3db7ed7cb	350	/* Character code support macros */
tosihisa	9:9ca3db7ed7cb	351	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
tosihisa	9:9ca3db7ed7cb	352	#define IsLower(c) (((c)>='a')&&((c)<='z'))
tosihisa	9:9ca3db7ed7cb	353	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
tosihisa	9:9ca3db7ed7cb	354
tosihisa	9:9ca3db7ed7cb	355	#if _DF1S /* Code page is DBCS */
tosihisa	9:9ca3db7ed7cb	356
tosihisa	9:9ca3db7ed7cb	357	#ifdef _DF2S /* Two 1st byte areas */
tosihisa	9:9ca3db7ed7cb	358	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
tosihisa	9:9ca3db7ed7cb	359	#else /* One 1st byte area */
tosihisa	9:9ca3db7ed7cb	360	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
tosihisa	9:9ca3db7ed7cb	361	#endif
tosihisa	9:9ca3db7ed7cb	362
tosihisa	9:9ca3db7ed7cb	363	#ifdef _DS3S /* Three 2nd byte areas */
tosihisa	9:9ca3db7ed7cb	364	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
tosihisa	9:9ca3db7ed7cb	365	#else /* Two 2nd byte areas */
tosihisa	9:9ca3db7ed7cb	366	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
tosihisa	9:9ca3db7ed7cb	367	#endif
tosihisa	9:9ca3db7ed7cb	368
tosihisa	9:9ca3db7ed7cb	369	#else /* Code page is SBCS */
tosihisa	9:9ca3db7ed7cb	370
tosihisa	9:9ca3db7ed7cb	371	#define IsDBCS1(c) 0
tosihisa	9:9ca3db7ed7cb	372	#define IsDBCS2(c) 0
tosihisa	9:9ca3db7ed7cb	373
tosihisa	9:9ca3db7ed7cb	374	#endif /* _DF1S */
tosihisa	9:9ca3db7ed7cb	375
tosihisa	9:9ca3db7ed7cb	376
tosihisa	9:9ca3db7ed7cb	377	/* Name status flags */
tosihisa	9:9ca3db7ed7cb	378	#define NS 11 /* Index of name status byte in fn[] */
tosihisa	9:9ca3db7ed7cb	379	#define NS_LOSS 0x01 /* Out of 8.3 format */
tosihisa	9:9ca3db7ed7cb	380	#define NS_LFN 0x02 /* Force to create LFN entry */
tosihisa	9:9ca3db7ed7cb	381	#define NS_LAST 0x04 /* Last segment */
tosihisa	9:9ca3db7ed7cb	382	#define NS_BODY 0x08 /* Lower case flag (body) */
tosihisa	9:9ca3db7ed7cb	383	#define NS_EXT 0x10 /* Lower case flag (ext) */
tosihisa	9:9ca3db7ed7cb	384	#define NS_DOT 0x20 /* Dot entry */
tosihisa	9:9ca3db7ed7cb	385
tosihisa	9:9ca3db7ed7cb	386
tosihisa	9:9ca3db7ed7cb	387	/* FAT sub-type boundaries */
tosihisa	9:9ca3db7ed7cb	388	/* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */
tosihisa	9:9ca3db7ed7cb	389	#define MIN_FAT16 4086 /* Minimum number of clusters for FAT16 */
tosihisa	9:9ca3db7ed7cb	390	#define MIN_FAT32 65526 /* Minimum number of clusters for FAT32 */
tosihisa	9:9ca3db7ed7cb	391
tosihisa	9:9ca3db7ed7cb	392
tosihisa	9:9ca3db7ed7cb	393	/* FatFs refers the members in the FAT structures as byte array instead of
tosihisa	9:9ca3db7ed7cb	394	/ structure member because the structure is not binary compatible between
tosihisa	9:9ca3db7ed7cb	395	/ different platforms */
tosihisa	9:9ca3db7ed7cb	396
tosihisa	9:9ca3db7ed7cb	397	#define BS_jmpBoot 0 /* Jump instruction (3) */
tosihisa	9:9ca3db7ed7cb	398	#define BS_OEMName 3 /* OEM name (8) */
tosihisa	9:9ca3db7ed7cb	399	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
tosihisa	9:9ca3db7ed7cb	400	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
tosihisa	9:9ca3db7ed7cb	401	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
tosihisa	9:9ca3db7ed7cb	402	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
tosihisa	9:9ca3db7ed7cb	403	#define BPB_RootEntCnt 17 /* Number of root dir entries for FAT12/16 (2) */
tosihisa	9:9ca3db7ed7cb	404	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
tosihisa	9:9ca3db7ed7cb	405	#define BPB_Media 21 /* Media descriptor (1) */
tosihisa	9:9ca3db7ed7cb	406	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
tosihisa	9:9ca3db7ed7cb	407	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
tosihisa	9:9ca3db7ed7cb	408	#define BPB_NumHeads 26 /* Number of heads (2) */
tosihisa	9:9ca3db7ed7cb	409	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
tosihisa	9:9ca3db7ed7cb	410	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
tosihisa	9:9ca3db7ed7cb	411	#define BS_DrvNum 36 /* Physical drive number (2) */
tosihisa	9:9ca3db7ed7cb	412	#define BS_BootSig 38 /* Extended boot signature (1) */
tosihisa	9:9ca3db7ed7cb	413	#define BS_VolID 39 /* Volume serial number (4) */
tosihisa	9:9ca3db7ed7cb	414	#define BS_VolLab 43 /* Volume label (8) */
tosihisa	9:9ca3db7ed7cb	415	#define BS_FilSysType 54 /* File system type (1) */
tosihisa	9:9ca3db7ed7cb	416	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
tosihisa	9:9ca3db7ed7cb	417	#define BPB_ExtFlags 40 /* Extended flags (2) */
tosihisa	9:9ca3db7ed7cb	418	#define BPB_FSVer 42 /* File system version (2) */
tosihisa	9:9ca3db7ed7cb	419	#define BPB_RootClus 44 /* Root dir first cluster (4) */
tosihisa	9:9ca3db7ed7cb	420	#define BPB_FSInfo 48 /* Offset of FSInfo sector (2) */
tosihisa	9:9ca3db7ed7cb	421	#define BPB_BkBootSec 50 /* Offset of backup boot sectot (2) */
tosihisa	9:9ca3db7ed7cb	422	#define BS_DrvNum32 64 /* Physical drive number (2) */
tosihisa	9:9ca3db7ed7cb	423	#define BS_BootSig32 66 /* Extended boot signature (1) */
tosihisa	9:9ca3db7ed7cb	424	#define BS_VolID32 67 /* Volume serial number (4) */
tosihisa	9:9ca3db7ed7cb	425	#define BS_VolLab32 71 /* Volume label (8) */
tosihisa	9:9ca3db7ed7cb	426	#define BS_FilSysType32 82 /* File system type (1) */
tosihisa	9:9ca3db7ed7cb	427	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
tosihisa	9:9ca3db7ed7cb	428	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
tosihisa	9:9ca3db7ed7cb	429	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
tosihisa	9:9ca3db7ed7cb	430	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
tosihisa	9:9ca3db7ed7cb	431	#define MBR_Table 446 /* MBR: Partition table offset (2) */
tosihisa	9:9ca3db7ed7cb	432	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
tosihisa	9:9ca3db7ed7cb	433	#define BS_55AA 510 /* Boot sector signature (2) */
tosihisa	9:9ca3db7ed7cb	434
tosihisa	9:9ca3db7ed7cb	435	#define DIR_Name 0 /* Short file name (11) */
tosihisa	9:9ca3db7ed7cb	436	#define DIR_Attr 11 /* Attribute (1) */
tosihisa	9:9ca3db7ed7cb	437	#define DIR_NTres 12 /* NT flag (1) */
tosihisa	9:9ca3db7ed7cb	438	#define DIR_CrtTime 14 /* Created time (2) */
tosihisa	9:9ca3db7ed7cb	439	#define DIR_CrtDate 16 /* Created date (2) */
tosihisa	9:9ca3db7ed7cb	440	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
tosihisa	9:9ca3db7ed7cb	441	#define DIR_WrtTime 22 /* Modified time (2) */
tosihisa	9:9ca3db7ed7cb	442	#define DIR_WrtDate 24 /* Modified date (2) */
tosihisa	9:9ca3db7ed7cb	443	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
tosihisa	9:9ca3db7ed7cb	444	#define DIR_FileSize 28 /* File size (4) */
tosihisa	9:9ca3db7ed7cb	445	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
tosihisa	9:9ca3db7ed7cb	446	#define LDIR_Attr 11 /* LFN attribute (1) */
tosihisa	9:9ca3db7ed7cb	447	#define LDIR_Type 12 /* LFN type (1) */
tosihisa	9:9ca3db7ed7cb	448	#define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
tosihisa	9:9ca3db7ed7cb	449	#define LDIR_FstClusLO 26 /* Filled by zero (0) */
tosihisa	9:9ca3db7ed7cb	450	#define SZ_DIR 32 /* Size of a directory entry */
tosihisa	9:9ca3db7ed7cb	451	#define LLE 0x40 /* Last long entry flag in LDIR_Ord */
tosihisa	9:9ca3db7ed7cb	452	#define DDE 0xE5 /* Deleted directory enrty mark in DIR_Name[0] */
tosihisa	9:9ca3db7ed7cb	453	#define NDDE 0x05 /* Replacement of a character collides with DDE */
tosihisa	9:9ca3db7ed7cb	454
tosihisa	9:9ca3db7ed7cb	455
tosihisa	9:9ca3db7ed7cb	456	/------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	457	/* Work area */
tosihisa	9:9ca3db7ed7cb	458
tosihisa	9:9ca3db7ed7cb	459	#if _VOLUMES
tosihisa	9:9ca3db7ed7cb	460	static
tosihisa	9:9ca3db7ed7cb	461	FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
tosihisa	9:9ca3db7ed7cb	462	#else
tosihisa	9:9ca3db7ed7cb	463	#error Number of drives must not be 0.
tosihisa	9:9ca3db7ed7cb	464	#endif
tosihisa	9:9ca3db7ed7cb	465
tosihisa	9:9ca3db7ed7cb	466	static
tosihisa	9:9ca3db7ed7cb	467	WORD Fsid; /* File system mount ID */
tosihisa	9:9ca3db7ed7cb	468
tosihisa	9:9ca3db7ed7cb	469	#if _FS_RPATH
tosihisa	9:9ca3db7ed7cb	470	static
tosihisa	9:9ca3db7ed7cb	471	BYTE CurrVol; /* Current drive */
tosihisa	9:9ca3db7ed7cb	472	#endif
tosihisa	9:9ca3db7ed7cb	473
tosihisa	9:9ca3db7ed7cb	474	#if _FS_SHARE
tosihisa	9:9ca3db7ed7cb	475	static
tosihisa	9:9ca3db7ed7cb	476	FILESEM Files[_FS_SHARE]; /* File lock semaphores */
tosihisa	9:9ca3db7ed7cb	477	#endif
tosihisa	9:9ca3db7ed7cb	478
tosihisa	9:9ca3db7ed7cb	479	#if _USE_LFN == 0 /* No LFN */
tosihisa	9:9ca3db7ed7cb	480	#define DEF_NAMEBUF BYTE sfn[12]
tosihisa	9:9ca3db7ed7cb	481	#define INIT_BUF(dobj) (dobj).fn = sfn
tosihisa	9:9ca3db7ed7cb	482	#define FREE_BUF()
tosihisa	9:9ca3db7ed7cb	483
tosihisa	9:9ca3db7ed7cb	484	#elif _USE_LFN == 1 /* LFN with static LFN working buffer */
tosihisa	9:9ca3db7ed7cb	485	static WCHAR LfnBuf[_MAX_LFN+1];
tosihisa	9:9ca3db7ed7cb	486	#define DEF_NAMEBUF BYTE sfn[12]
tosihisa	9:9ca3db7ed7cb	487	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
tosihisa	9:9ca3db7ed7cb	488	#define FREE_BUF()
tosihisa	9:9ca3db7ed7cb	489
tosihisa	9:9ca3db7ed7cb	490	#elif _USE_LFN == 2 /* LFN with dynamic LFN working buffer on the stack */
tosihisa	9:9ca3db7ed7cb	491	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
tosihisa	9:9ca3db7ed7cb	492	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
tosihisa	9:9ca3db7ed7cb	493	#define FREE_BUF()
tosihisa	9:9ca3db7ed7cb	494
tosihisa	9:9ca3db7ed7cb	495	#elif _USE_LFN == 3 /* LFN with dynamic LFN working buffer on the heap */
tosihisa	9:9ca3db7ed7cb	496	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
tosihisa	9:9ca3db7ed7cb	497	#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
tosihisa	9:9ca3db7ed7cb	498	if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
tosihisa	9:9ca3db7ed7cb	499	(dobj).lfn = lfn; (dobj).fn = sfn; }
tosihisa	9:9ca3db7ed7cb	500	#define FREE_BUF() ff_memfree(lfn)
tosihisa	9:9ca3db7ed7cb	501
tosihisa	9:9ca3db7ed7cb	502	#else
tosihisa	9:9ca3db7ed7cb	503	#error Wrong LFN configuration.
tosihisa	9:9ca3db7ed7cb	504	#endif
tosihisa	9:9ca3db7ed7cb	505
tosihisa	9:9ca3db7ed7cb	506
tosihisa	9:9ca3db7ed7cb	507
tosihisa	9:9ca3db7ed7cb	508
tosihisa	9:9ca3db7ed7cb	509	/*--------------------------------------------------------------------------
tosihisa	9:9ca3db7ed7cb	510
tosihisa	9:9ca3db7ed7cb	511	Module Private Functions
tosihisa	9:9ca3db7ed7cb	512
tosihisa	9:9ca3db7ed7cb	513	---------------------------------------------------------------------------*/
tosihisa	9:9ca3db7ed7cb	514
tosihisa	9:9ca3db7ed7cb	515	//static FATFS FatFs[_DRIVES]; / Pointer to the file system objects (logical drives) */
tosihisa	9:9ca3db7ed7cb	516	//static WORD fsid; /* File system mount ID */
tosihisa	9:9ca3db7ed7cb	517
tosihisa	9:9ca3db7ed7cb	518	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	519	/* String functions */
tosihisa	9:9ca3db7ed7cb	520	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	521
tosihisa	9:9ca3db7ed7cb	522	/* Copy memory to memory */
tosihisa	9:9ca3db7ed7cb	523	static
tosihisa	9:9ca3db7ed7cb	524	void mem_cpy (void* dst, const void* src, UINT cnt) {
tosihisa	9:9ca3db7ed7cb	525	BYTE d = (BYTE)dst;
tosihisa	9:9ca3db7ed7cb	526	const BYTE s = (const BYTE)src;
tosihisa	9:9ca3db7ed7cb	527
tosihisa	9:9ca3db7ed7cb	528	#if _WORD_ACCESS == 1
tosihisa	9:9ca3db7ed7cb	529	while (cnt >= sizeof(int)) {
tosihisa	9:9ca3db7ed7cb	530	(int)d = (int)s;
tosihisa	9:9ca3db7ed7cb	531	d += sizeof(int); s += sizeof(int);
tosihisa	9:9ca3db7ed7cb	532	cnt -= sizeof(int);
tosihisa	9:9ca3db7ed7cb	533	}
tosihisa	9:9ca3db7ed7cb	534	#endif
tosihisa	9:9ca3db7ed7cb	535	while (cnt--)
tosihisa	9:9ca3db7ed7cb	536	d++ = s++;
tosihisa	9:9ca3db7ed7cb	537	}
tosihisa	9:9ca3db7ed7cb	538
tosihisa	9:9ca3db7ed7cb	539	/* Fill memory */
tosihisa	9:9ca3db7ed7cb	540	static
tosihisa	9:9ca3db7ed7cb	541	void mem_set (void* dst, int val, UINT cnt) {
tosihisa	9:9ca3db7ed7cb	542	BYTE d = (BYTE)dst;
tosihisa	9:9ca3db7ed7cb	543
tosihisa	9:9ca3db7ed7cb	544	while (cnt--)
tosihisa	9:9ca3db7ed7cb	545	*d++ = (BYTE)val;
tosihisa	9:9ca3db7ed7cb	546	}
tosihisa	9:9ca3db7ed7cb	547
tosihisa	9:9ca3db7ed7cb	548	/* Compare memory to memory */
tosihisa	9:9ca3db7ed7cb	549	static
tosihisa	9:9ca3db7ed7cb	550	int mem_cmp (const void* dst, const void* src, UINT cnt) {
tosihisa	9:9ca3db7ed7cb	551	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
tosihisa	9:9ca3db7ed7cb	552	int r = 0;
tosihisa	9:9ca3db7ed7cb	553
tosihisa	9:9ca3db7ed7cb	554	while (cnt-- && (r = d++ - s++) == 0) ;
tosihisa	9:9ca3db7ed7cb	555	return r;
tosihisa	9:9ca3db7ed7cb	556	}
tosihisa	9:9ca3db7ed7cb	557
tosihisa	9:9ca3db7ed7cb	558	/* Check if chr is contained in the string */
tosihisa	9:9ca3db7ed7cb	559	static
tosihisa	9:9ca3db7ed7cb	560	int chk_chr (const char* str, int chr) {
tosihisa	9:9ca3db7ed7cb	561	while (str && str != chr) str++;
tosihisa	9:9ca3db7ed7cb	562	return *str;
tosihisa	9:9ca3db7ed7cb	563	}
tosihisa	9:9ca3db7ed7cb	564
tosihisa	9:9ca3db7ed7cb	565
tosihisa	9:9ca3db7ed7cb	566
tosihisa	9:9ca3db7ed7cb	567	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	568	/* Request/Release grant to access the volume */
tosihisa	9:9ca3db7ed7cb	569	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	570	#if _FS_REENTRANT
tosihisa	9:9ca3db7ed7cb	571
tosihisa	9:9ca3db7ed7cb	572	static
tosihisa	9:9ca3db7ed7cb	573	int lock_fs (
tosihisa	9:9ca3db7ed7cb	574	FATFS fs / File system object */
tosihisa	9:9ca3db7ed7cb	575	)
tosihisa	9:9ca3db7ed7cb	576	{
tosihisa	9:9ca3db7ed7cb	577	return ff_req_grant(fs->sobj);
tosihisa	9:9ca3db7ed7cb	578	}
tosihisa	9:9ca3db7ed7cb	579
tosihisa	9:9ca3db7ed7cb	580
tosihisa	9:9ca3db7ed7cb	581	static
tosihisa	9:9ca3db7ed7cb	582	void unlock_fs (
tosihisa	9:9ca3db7ed7cb	583	FATFS fs, / File system object */
tosihisa	9:9ca3db7ed7cb	584	FRESULT res /* Result code to be returned */
tosihisa	9:9ca3db7ed7cb	585	)
tosihisa	9:9ca3db7ed7cb	586	{
tosihisa	9:9ca3db7ed7cb	587	if (res != FR_NOT_ENABLED &&
tosihisa	9:9ca3db7ed7cb	588	res != FR_INVALID_DRIVE &&
tosihisa	9:9ca3db7ed7cb	589	res != FR_INVALID_OBJECT &&
tosihisa	9:9ca3db7ed7cb	590	res != FR_TIMEOUT) {
tosihisa	9:9ca3db7ed7cb	591	ff_rel_grant(fs->sobj);
tosihisa	9:9ca3db7ed7cb	592	}
tosihisa	9:9ca3db7ed7cb	593	}
tosihisa	9:9ca3db7ed7cb	594	#endif
tosihisa	9:9ca3db7ed7cb	595
tosihisa	9:9ca3db7ed7cb	596
tosihisa	9:9ca3db7ed7cb	597
tosihisa	9:9ca3db7ed7cb	598	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	599	/* File shareing control functions */
tosihisa	9:9ca3db7ed7cb	600	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	601	#if _FS_SHARE
tosihisa	9:9ca3db7ed7cb	602
tosihisa	9:9ca3db7ed7cb	603	static
tosihisa	9:9ca3db7ed7cb	604	FRESULT chk_lock ( /* Check if the file can be accessed */
tosihisa	9:9ca3db7ed7cb	605	DIR* dj, /* Directory object pointing the file to be checked */
tosihisa	9:9ca3db7ed7cb	606	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
tosihisa	9:9ca3db7ed7cb	607	)
tosihisa	9:9ca3db7ed7cb	608	{
tosihisa	9:9ca3db7ed7cb	609	UINT i, be;
tosihisa	9:9ca3db7ed7cb	610
tosihisa	9:9ca3db7ed7cb	611	/* Search file semaphore table */
tosihisa	9:9ca3db7ed7cb	612	for (i = be = 0; i < _FS_SHARE; i++) {
tosihisa	9:9ca3db7ed7cb	613	if (Files[i].fs) { /* Existing entry */
tosihisa	9:9ca3db7ed7cb	614	if (Files[i].fs == dj->fs && /* Check if the file matched with an open file */
tosihisa	9:9ca3db7ed7cb	615	Files[i].clu == dj->sclust &&
tosihisa	9:9ca3db7ed7cb	616	Files[i].idx == dj->index) break;
tosihisa	9:9ca3db7ed7cb	617	} else { /* Blank entry */
tosihisa	9:9ca3db7ed7cb	618	be++;
tosihisa	9:9ca3db7ed7cb	619	}
tosihisa	9:9ca3db7ed7cb	620	}
tosihisa	9:9ca3db7ed7cb	621	if (i == _FS_SHARE) /* The file is not opened */
tosihisa	9:9ca3db7ed7cb	622	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new file? */
tosihisa	9:9ca3db7ed7cb	623
tosihisa	9:9ca3db7ed7cb	624	/* The file has been opened. Reject any open against writing file and all write mode open */
tosihisa	9:9ca3db7ed7cb	625	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
tosihisa	9:9ca3db7ed7cb	626	}
tosihisa	9:9ca3db7ed7cb	627
tosihisa	9:9ca3db7ed7cb	628
tosihisa	9:9ca3db7ed7cb	629	static
tosihisa	9:9ca3db7ed7cb	630	int enq_lock ( /* Check if an entry is available for a new file */
tosihisa	9:9ca3db7ed7cb	631	FATFS* fs /* File system object */
tosihisa	9:9ca3db7ed7cb	632	)
tosihisa	9:9ca3db7ed7cb	633	{
tosihisa	9:9ca3db7ed7cb	634	UINT i;
tosihisa	9:9ca3db7ed7cb	635
tosihisa	9:9ca3db7ed7cb	636	for (i = 0; i < _FS_SHARE && Files[i].fs; i++) ;
tosihisa	9:9ca3db7ed7cb	637	return (i == _FS_SHARE) ? 0 : 1;
tosihisa	9:9ca3db7ed7cb	638	}
tosihisa	9:9ca3db7ed7cb	639
tosihisa	9:9ca3db7ed7cb	640
tosihisa	9:9ca3db7ed7cb	641	static
tosihisa	9:9ca3db7ed7cb	642	UINT inc_lock ( /* Increment file open counter and returns its index (0:int error) */
tosihisa	9:9ca3db7ed7cb	643	DIR* dj, /* Directory object pointing the file to register or increment */
tosihisa	9:9ca3db7ed7cb	644	int acc /* Desired access mode (0:Read, !0:Write) */
tosihisa	9:9ca3db7ed7cb	645	)
tosihisa	9:9ca3db7ed7cb	646	{
tosihisa	9:9ca3db7ed7cb	647	UINT i;
tosihisa	9:9ca3db7ed7cb	648
tosihisa	9:9ca3db7ed7cb	649
tosihisa	9:9ca3db7ed7cb	650	for (i = 0; i < _FS_SHARE; i++) { /* Find the file */
tosihisa	9:9ca3db7ed7cb	651	if (Files[i].fs == dj->fs &&
tosihisa	9:9ca3db7ed7cb	652	Files[i].clu == dj->sclust &&
tosihisa	9:9ca3db7ed7cb	653	Files[i].idx == dj->index) break;
tosihisa	9:9ca3db7ed7cb	654	}
tosihisa	9:9ca3db7ed7cb	655
tosihisa	9:9ca3db7ed7cb	656	if (i == _FS_SHARE) { /* Not opened. Register it as new. */
tosihisa	9:9ca3db7ed7cb	657	for (i = 0; i < _FS_SHARE && Files[i].fs; i++) ;
tosihisa	9:9ca3db7ed7cb	658	if (i == _FS_SHARE) return 0; /* No space to register (int err) */
tosihisa	9:9ca3db7ed7cb	659	Files[i].fs = dj->fs;
tosihisa	9:9ca3db7ed7cb	660	Files[i].clu = dj->sclust;
tosihisa	9:9ca3db7ed7cb	661	Files[i].idx = dj->index;
tosihisa	9:9ca3db7ed7cb	662	Files[i].ctr = 0;
tosihisa	9:9ca3db7ed7cb	663	}
tosihisa	9:9ca3db7ed7cb	664
tosihisa	9:9ca3db7ed7cb	665	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
tosihisa	9:9ca3db7ed7cb	666
tosihisa	9:9ca3db7ed7cb	667	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
tosihisa	9:9ca3db7ed7cb	668
tosihisa	9:9ca3db7ed7cb	669	return i + 1;
tosihisa	9:9ca3db7ed7cb	670	}
tosihisa	9:9ca3db7ed7cb	671
tosihisa	9:9ca3db7ed7cb	672
tosihisa	9:9ca3db7ed7cb	673	static
tosihisa	9:9ca3db7ed7cb	674	FRESULT dec_lock ( /* Decrement file open counter */
tosihisa	9:9ca3db7ed7cb	675	UINT i /* Semaphore index */
tosihisa	9:9ca3db7ed7cb	676	)
tosihisa	9:9ca3db7ed7cb	677	{
tosihisa	9:9ca3db7ed7cb	678	WORD n;
tosihisa	9:9ca3db7ed7cb	679	FRESULT res;
tosihisa	9:9ca3db7ed7cb	680
tosihisa	9:9ca3db7ed7cb	681
tosihisa	9:9ca3db7ed7cb	682	if (--i < _FS_SHARE) {
tosihisa	9:9ca3db7ed7cb	683	n = Files[i].ctr;
tosihisa	9:9ca3db7ed7cb	684	if (n == 0x100) n = 0;
tosihisa	9:9ca3db7ed7cb	685	if (n) n--;
tosihisa	9:9ca3db7ed7cb	686	Files[i].ctr = n;
tosihisa	9:9ca3db7ed7cb	687	if (!n) Files[i].fs = 0;
tosihisa	9:9ca3db7ed7cb	688	res = FR_OK;
tosihisa	9:9ca3db7ed7cb	689	} else {
tosihisa	9:9ca3db7ed7cb	690	res = FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	691	}
tosihisa	9:9ca3db7ed7cb	692	return res;
tosihisa	9:9ca3db7ed7cb	693	}
tosihisa	9:9ca3db7ed7cb	694
tosihisa	9:9ca3db7ed7cb	695
tosihisa	9:9ca3db7ed7cb	696	static
tosihisa	9:9ca3db7ed7cb	697	void clear_lock ( /* Clear lock entries of the volume */
tosihisa	9:9ca3db7ed7cb	698	FATFS *fs
tosihisa	9:9ca3db7ed7cb	699	)
tosihisa	9:9ca3db7ed7cb	700	{
tosihisa	9:9ca3db7ed7cb	701	UINT i;
tosihisa	9:9ca3db7ed7cb	702
tosihisa	9:9ca3db7ed7cb	703	for (i = 0; i < _FS_SHARE; i++) {
tosihisa	9:9ca3db7ed7cb	704	if (Files[i].fs == fs) Files[i].fs = 0;
tosihisa	9:9ca3db7ed7cb	705	}
tosihisa	9:9ca3db7ed7cb	706	}
tosihisa	9:9ca3db7ed7cb	707	#endif
tosihisa	9:9ca3db7ed7cb	708
tosihisa	9:9ca3db7ed7cb	709
tosihisa	9:9ca3db7ed7cb	710
tosihisa	9:9ca3db7ed7cb	711	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	712	/* Change window offset */
tosihisa	9:9ca3db7ed7cb	713	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	714
tosihisa	9:9ca3db7ed7cb	715	static
tosihisa	9:9ca3db7ed7cb	716	FRESULT move_window (
tosihisa	9:9ca3db7ed7cb	717	FATFS fs, / File system object */
tosihisa	9:9ca3db7ed7cb	718	DWORD sector /* Sector number to make appearance in the fs->win[] */
tosihisa	9:9ca3db7ed7cb	719	) /* Move to zero only writes back dirty window */
tosihisa	9:9ca3db7ed7cb	720	{
tosihisa	9:9ca3db7ed7cb	721	DWORD wsect;
tosihisa	9:9ca3db7ed7cb	722
tosihisa	9:9ca3db7ed7cb	723
tosihisa	9:9ca3db7ed7cb	724	wsect = fs->winsect;
tosihisa	9:9ca3db7ed7cb	725	if (wsect != sector) { /* Changed current window */
tosihisa	9:9ca3db7ed7cb	726	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	727	if (fs->wflag) { /* Write back dirty window if needed */
tosihisa	9:9ca3db7ed7cb	728	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK)
tosihisa	9:9ca3db7ed7cb	729	return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	730	fs->wflag = 0;
tosihisa	9:9ca3db7ed7cb	731	if (wsect < (fs->fatbase + fs->fsize)) { /* In FAT area */
tosihisa	9:9ca3db7ed7cb	732	BYTE nf;
tosihisa	9:9ca3db7ed7cb	733	for (nf = fs->n_fats; nf > 1; nf--) { /* Reflect the change to all FAT copies */
tosihisa	9:9ca3db7ed7cb	734	wsect += fs->fsize;
tosihisa	9:9ca3db7ed7cb	735	disk_write(fs->drv, fs->win, wsect, 1);
tosihisa	9:9ca3db7ed7cb	736	}
tosihisa	9:9ca3db7ed7cb	737	}
tosihisa	9:9ca3db7ed7cb	738	}
tosihisa	9:9ca3db7ed7cb	739	#endif
tosihisa	9:9ca3db7ed7cb	740	if (sector) {
tosihisa	9:9ca3db7ed7cb	741	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK)
tosihisa	9:9ca3db7ed7cb	742	return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	743	fs->winsect = sector;
tosihisa	9:9ca3db7ed7cb	744	}
tosihisa	9:9ca3db7ed7cb	745	}
tosihisa	9:9ca3db7ed7cb	746
tosihisa	9:9ca3db7ed7cb	747	return FR_OK;
tosihisa	9:9ca3db7ed7cb	748	}
tosihisa	9:9ca3db7ed7cb	749
tosihisa	9:9ca3db7ed7cb	750
tosihisa	9:9ca3db7ed7cb	751
tosihisa	9:9ca3db7ed7cb	752
tosihisa	9:9ca3db7ed7cb	753	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	754	/* Clean-up cached data */
tosihisa	9:9ca3db7ed7cb	755	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	756	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	757	static
tosihisa	9:9ca3db7ed7cb	758	FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */
tosihisa	9:9ca3db7ed7cb	759	FATFS fs / File system object */
tosihisa	9:9ca3db7ed7cb	760	)
tosihisa	9:9ca3db7ed7cb	761	{
tosihisa	9:9ca3db7ed7cb	762	FRESULT res;
tosihisa	9:9ca3db7ed7cb	763
tosihisa	9:9ca3db7ed7cb	764
tosihisa	9:9ca3db7ed7cb	765	res = move_window(fs, 0);
tosihisa	9:9ca3db7ed7cb	766	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	767	/* Update FSInfo sector if needed */
tosihisa	9:9ca3db7ed7cb	768	if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
tosihisa	9:9ca3db7ed7cb	769	fs->winsect = 0;
tosihisa	9:9ca3db7ed7cb	770	/* Create FSInfo structure */
tosihisa	9:9ca3db7ed7cb	771	mem_set(fs->win, 0, 512);
tosihisa	9:9ca3db7ed7cb	772	ST_WORD(fs->win+BS_55AA, 0xAA55);
tosihisa	9:9ca3db7ed7cb	773	ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
tosihisa	9:9ca3db7ed7cb	774	ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
tosihisa	9:9ca3db7ed7cb	775	ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
tosihisa	9:9ca3db7ed7cb	776	ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
tosihisa	9:9ca3db7ed7cb	777	/* Write it into the FSInfo sector */
tosihisa	9:9ca3db7ed7cb	778	disk_write(fs->drv, fs->win, fs->fsi_sector, 1);
tosihisa	9:9ca3db7ed7cb	779	fs->fsi_flag = 0;
tosihisa	9:9ca3db7ed7cb	780	}
tosihisa	9:9ca3db7ed7cb	781	/* Make sure that no pending write process in the physical drive */
tosihisa	9:9ca3db7ed7cb	782	if (disk_ioctl(fs->drv, CTRL_SYNC, (void*)0) != RES_OK)
tosihisa	9:9ca3db7ed7cb	783	res = FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	784	}
tosihisa	9:9ca3db7ed7cb	785
tosihisa	9:9ca3db7ed7cb	786	return res;
tosihisa	9:9ca3db7ed7cb	787	}
tosihisa	9:9ca3db7ed7cb	788	#endif
tosihisa	9:9ca3db7ed7cb	789
tosihisa	9:9ca3db7ed7cb	790
tosihisa	9:9ca3db7ed7cb	791
tosihisa	9:9ca3db7ed7cb	792
tosihisa	9:9ca3db7ed7cb	793	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	794	/* Get sector# from cluster# */
tosihisa	9:9ca3db7ed7cb	795	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	796
tosihisa	9:9ca3db7ed7cb	797
tosihisa	9:9ca3db7ed7cb	798	DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
tosihisa	9:9ca3db7ed7cb	799	FATFS fs, / File system object */
tosihisa	9:9ca3db7ed7cb	800	DWORD clst /* Cluster# to be converted */
tosihisa	9:9ca3db7ed7cb	801	)
tosihisa	9:9ca3db7ed7cb	802	{
tosihisa	9:9ca3db7ed7cb	803	clst -= 2;
tosihisa	9:9ca3db7ed7cb	804	if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
tosihisa	9:9ca3db7ed7cb	805	return clst * fs->csize + fs->database;
tosihisa	9:9ca3db7ed7cb	806	}
tosihisa	9:9ca3db7ed7cb	807
tosihisa	9:9ca3db7ed7cb	808
tosihisa	9:9ca3db7ed7cb	809
tosihisa	9:9ca3db7ed7cb	810
tosihisa	9:9ca3db7ed7cb	811	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	812	/* FAT access - Read value of a FAT entry */
tosihisa	9:9ca3db7ed7cb	813	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	814
tosihisa	9:9ca3db7ed7cb	815
tosihisa	9:9ca3db7ed7cb	816	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
tosihisa	9:9ca3db7ed7cb	817	FATFS fs, / File system object */
tosihisa	9:9ca3db7ed7cb	818	DWORD clst /* Cluster# to get the link information */
tosihisa	9:9ca3db7ed7cb	819	)
tosihisa	9:9ca3db7ed7cb	820	{
tosihisa	9:9ca3db7ed7cb	821	UINT wc, bc;
tosihisa	9:9ca3db7ed7cb	822	BYTE *p;
tosihisa	9:9ca3db7ed7cb	823
tosihisa	9:9ca3db7ed7cb	824
tosihisa	9:9ca3db7ed7cb	825	if (clst < 2 \|\| clst >= fs->n_fatent) /* Chack range */
tosihisa	9:9ca3db7ed7cb	826	return 1;
tosihisa	9:9ca3db7ed7cb	827
tosihisa	9:9ca3db7ed7cb	828	switch (fs->fs_type) {
tosihisa	9:9ca3db7ed7cb	829	case FS_FAT12 :
tosihisa	9:9ca3db7ed7cb	830	bc = (UINT)clst; bc += bc / 2;
tosihisa	9:9ca3db7ed7cb	831	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
tosihisa	9:9ca3db7ed7cb	832	wc = fs->win[bc % SS(fs)]; bc++;
tosihisa	9:9ca3db7ed7cb	833	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
tosihisa	9:9ca3db7ed7cb	834	wc \|= fs->win[bc % SS(fs)] << 8;
tosihisa	9:9ca3db7ed7cb	835	return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
tosihisa	9:9ca3db7ed7cb	836
tosihisa	9:9ca3db7ed7cb	837	case FS_FAT16 :
tosihisa	9:9ca3db7ed7cb	838	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
tosihisa	9:9ca3db7ed7cb	839	p = &fs->win[clst * 2 % SS(fs)];
tosihisa	9:9ca3db7ed7cb	840	return LD_WORD(p);
tosihisa	9:9ca3db7ed7cb	841
tosihisa	9:9ca3db7ed7cb	842	case FS_FAT32 :
tosihisa	9:9ca3db7ed7cb	843	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
tosihisa	9:9ca3db7ed7cb	844	p = &fs->win[clst * 4 % SS(fs)];
tosihisa	9:9ca3db7ed7cb	845	return LD_DWORD(p) & 0x0FFFFFFF;
tosihisa	9:9ca3db7ed7cb	846	}
tosihisa	9:9ca3db7ed7cb	847
tosihisa	9:9ca3db7ed7cb	848	return 0xFFFFFFFF; /* An error occurred at the disk I/O layer */
tosihisa	9:9ca3db7ed7cb	849	}
tosihisa	9:9ca3db7ed7cb	850
tosihisa	9:9ca3db7ed7cb	851
tosihisa	9:9ca3db7ed7cb	852
tosihisa	9:9ca3db7ed7cb	853
tosihisa	9:9ca3db7ed7cb	854	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	855	/* FAT access - Change value of a FAT entry */
tosihisa	9:9ca3db7ed7cb	856	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	857	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	858
tosihisa	9:9ca3db7ed7cb	859	FRESULT put_fat (
tosihisa	9:9ca3db7ed7cb	860	FATFS fs, / File system object */
tosihisa	9:9ca3db7ed7cb	861	DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
tosihisa	9:9ca3db7ed7cb	862	DWORD val /* New value to mark the cluster */
tosihisa	9:9ca3db7ed7cb	863	)
tosihisa	9:9ca3db7ed7cb	864	{
tosihisa	9:9ca3db7ed7cb	865	UINT bc;
tosihisa	9:9ca3db7ed7cb	866	BYTE *p;
tosihisa	9:9ca3db7ed7cb	867	FRESULT res;
tosihisa	9:9ca3db7ed7cb	868
tosihisa	9:9ca3db7ed7cb	869
tosihisa	9:9ca3db7ed7cb	870	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
tosihisa	9:9ca3db7ed7cb	871	res = FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	872
tosihisa	9:9ca3db7ed7cb	873	} else {
tosihisa	9:9ca3db7ed7cb	874	switch (fs->fs_type) {
tosihisa	9:9ca3db7ed7cb	875	case FS_FAT12 :
tosihisa	9:9ca3db7ed7cb	876	bc = clst; bc += bc / 2;
tosihisa	9:9ca3db7ed7cb	877	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
tosihisa	9:9ca3db7ed7cb	878	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	879	p = &fs->win[bc % SS(fs)];
tosihisa	9:9ca3db7ed7cb	880	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
tosihisa	9:9ca3db7ed7cb	881	bc++;
tosihisa	9:9ca3db7ed7cb	882	fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	883	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
tosihisa	9:9ca3db7ed7cb	884	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	885	p = &fs->win[bc % SS(fs)];
tosihisa	9:9ca3db7ed7cb	886	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
tosihisa	9:9ca3db7ed7cb	887	break;
tosihisa	9:9ca3db7ed7cb	888
tosihisa	9:9ca3db7ed7cb	889	case FS_FAT16 :
tosihisa	9:9ca3db7ed7cb	890	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
tosihisa	9:9ca3db7ed7cb	891	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	892	p = &fs->win[clst * 2 % SS(fs)];
tosihisa	9:9ca3db7ed7cb	893	ST_WORD(p, (WORD)val);
tosihisa	9:9ca3db7ed7cb	894	break;
tosihisa	9:9ca3db7ed7cb	895
tosihisa	9:9ca3db7ed7cb	896	case FS_FAT32 :
tosihisa	9:9ca3db7ed7cb	897	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
tosihisa	9:9ca3db7ed7cb	898	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	899	p = &fs->win[clst * 4 % SS(fs)];
tosihisa	9:9ca3db7ed7cb	900	val \|= LD_DWORD(p) & 0xF0000000;
tosihisa	9:9ca3db7ed7cb	901	ST_DWORD(p, val);
tosihisa	9:9ca3db7ed7cb	902	break;
tosihisa	9:9ca3db7ed7cb	903
tosihisa	9:9ca3db7ed7cb	904	default :
tosihisa	9:9ca3db7ed7cb	905	res = FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	906	}
tosihisa	9:9ca3db7ed7cb	907	fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	908	}
tosihisa	9:9ca3db7ed7cb	909
tosihisa	9:9ca3db7ed7cb	910	return res;
tosihisa	9:9ca3db7ed7cb	911	}
tosihisa	9:9ca3db7ed7cb	912	#endif /* !_FS_READONLY */
tosihisa	9:9ca3db7ed7cb	913
tosihisa	9:9ca3db7ed7cb	914
tosihisa	9:9ca3db7ed7cb	915
tosihisa	9:9ca3db7ed7cb	916
tosihisa	9:9ca3db7ed7cb	917	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	918	/* FAT handling - Remove a cluster chain */
tosihisa	9:9ca3db7ed7cb	919	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	920	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	921	static
tosihisa	9:9ca3db7ed7cb	922	FRESULT remove_chain (
tosihisa	9:9ca3db7ed7cb	923	FATFS fs, / File system object */
tosihisa	9:9ca3db7ed7cb	924	DWORD clst /* Cluster# to remove a chain from */
tosihisa	9:9ca3db7ed7cb	925	)
tosihisa	9:9ca3db7ed7cb	926	{
tosihisa	9:9ca3db7ed7cb	927	FRESULT res;
tosihisa	9:9ca3db7ed7cb	928	DWORD nxt;
tosihisa	9:9ca3db7ed7cb	929	#if _USE_ERASE
tosihisa	9:9ca3db7ed7cb	930	DWORD scl = clst, ecl = clst, resion[2];
tosihisa	9:9ca3db7ed7cb	931	#endif
tosihisa	9:9ca3db7ed7cb	932
tosihisa	9:9ca3db7ed7cb	933	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
tosihisa	9:9ca3db7ed7cb	934	res = FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	935
tosihisa	9:9ca3db7ed7cb	936	} else {
tosihisa	9:9ca3db7ed7cb	937	res = FR_OK;
tosihisa	9:9ca3db7ed7cb	938	while (clst < fs->n_fatent) { /* Not a last link? */
tosihisa	9:9ca3db7ed7cb	939	nxt = get_fat(fs, clst); /* Get cluster status */
tosihisa	9:9ca3db7ed7cb	940	if (nxt == 0) break; /* Empty cluster? */
tosihisa	9:9ca3db7ed7cb	941	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
tosihisa	9:9ca3db7ed7cb	942	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
tosihisa	9:9ca3db7ed7cb	943	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
tosihisa	9:9ca3db7ed7cb	944	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	945	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */
tosihisa	9:9ca3db7ed7cb	946	fs->free_clust++;
tosihisa	9:9ca3db7ed7cb	947	fs->fsi_flag = 1;
tosihisa	9:9ca3db7ed7cb	948	}
tosihisa	9:9ca3db7ed7cb	949	#if _USE_ERASE
tosihisa	9:9ca3db7ed7cb	950	if (ecl + 1 == nxt) { /* Next cluster is contiguous */
tosihisa	9:9ca3db7ed7cb	951	ecl = nxt;
tosihisa	9:9ca3db7ed7cb	952	} else { /* End of contiguous clusters */
tosihisa	9:9ca3db7ed7cb	953	resion[0] = clust2sect(fs, scl); /* Start sector */
tosihisa	9:9ca3db7ed7cb	954	resion[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
tosihisa	9:9ca3db7ed7cb	955	disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, resion); /* Erase the block */
tosihisa	9:9ca3db7ed7cb	956	scl = ecl = nxt;
tosihisa	9:9ca3db7ed7cb	957	}
tosihisa	9:9ca3db7ed7cb	958	#endif
tosihisa	9:9ca3db7ed7cb	959	clst = nxt; /* Next cluster */
tosihisa	9:9ca3db7ed7cb	960	}
tosihisa	9:9ca3db7ed7cb	961	}
tosihisa	9:9ca3db7ed7cb	962
tosihisa	9:9ca3db7ed7cb	963	return res;
tosihisa	9:9ca3db7ed7cb	964	}
tosihisa	9:9ca3db7ed7cb	965	#endif
tosihisa	9:9ca3db7ed7cb	966
tosihisa	9:9ca3db7ed7cb	967
tosihisa	9:9ca3db7ed7cb	968
tosihisa	9:9ca3db7ed7cb	969
tosihisa	9:9ca3db7ed7cb	970	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	971	/* FAT handling - Stretch or Create a cluster chain */
tosihisa	9:9ca3db7ed7cb	972	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	973	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	974	static
tosihisa	9:9ca3db7ed7cb	975	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
tosihisa	9:9ca3db7ed7cb	976	FATFS fs, / File system object */
tosihisa	9:9ca3db7ed7cb	977	DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
tosihisa	9:9ca3db7ed7cb	978	)
tosihisa	9:9ca3db7ed7cb	979	{
tosihisa	9:9ca3db7ed7cb	980	DWORD cs, ncl, scl;
tosihisa	9:9ca3db7ed7cb	981	FRESULT res;
tosihisa	9:9ca3db7ed7cb	982
tosihisa	9:9ca3db7ed7cb	983
tosihisa	9:9ca3db7ed7cb	984	if (clst == 0) { /* Create a new chain */
tosihisa	9:9ca3db7ed7cb	985	scl = fs->last_clust; /* Get suggested start point */
tosihisa	9:9ca3db7ed7cb	986	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
tosihisa	9:9ca3db7ed7cb	987	}
tosihisa	9:9ca3db7ed7cb	988	else { /* Stretch the current chain */
tosihisa	9:9ca3db7ed7cb	989	cs = get_fat(fs, clst); /* Check the cluster status */
tosihisa	9:9ca3db7ed7cb	990	if (cs < 2) return 1; /* It is an invalid cluster */
tosihisa	9:9ca3db7ed7cb	991	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
tosihisa	9:9ca3db7ed7cb	992	scl = clst;
tosihisa	9:9ca3db7ed7cb	993	}
tosihisa	9:9ca3db7ed7cb	994
tosihisa	9:9ca3db7ed7cb	995	ncl = scl; /* Start cluster */
tosihisa	9:9ca3db7ed7cb	996	for (;;) {
tosihisa	9:9ca3db7ed7cb	997	ncl++; /* Next cluster */
tosihisa	9:9ca3db7ed7cb	998	if (ncl >= fs->n_fatent) { /* Wrap around */
tosihisa	9:9ca3db7ed7cb	999	ncl = 2;
tosihisa	9:9ca3db7ed7cb	1000	if (ncl > scl) return 0; /* No free cluster */
tosihisa	9:9ca3db7ed7cb	1001	}
tosihisa	9:9ca3db7ed7cb	1002	cs = get_fat(fs, ncl); /* Get the cluster status */
tosihisa	9:9ca3db7ed7cb	1003	if (cs == 0) break; /* Found a free cluster */
tosihisa	9:9ca3db7ed7cb	1004	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
tosihisa	9:9ca3db7ed7cb	1005	return cs;
tosihisa	9:9ca3db7ed7cb	1006	if (ncl == scl) return 0; /* No free cluster */
tosihisa	9:9ca3db7ed7cb	1007	}
tosihisa	9:9ca3db7ed7cb	1008
tosihisa	9:9ca3db7ed7cb	1009	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
tosihisa	9:9ca3db7ed7cb	1010	if (res == FR_OK && clst != 0) {
tosihisa	9:9ca3db7ed7cb	1011	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
tosihisa	9:9ca3db7ed7cb	1012	}
tosihisa	9:9ca3db7ed7cb	1013	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	1014	fs->last_clust = ncl; /* Update FSINFO */
tosihisa	9:9ca3db7ed7cb	1015	if (fs->free_clust != 0xFFFFFFFF) {
tosihisa	9:9ca3db7ed7cb	1016	fs->free_clust--;
tosihisa	9:9ca3db7ed7cb	1017	fs->fsi_flag = 1;
tosihisa	9:9ca3db7ed7cb	1018	}
tosihisa	9:9ca3db7ed7cb	1019	} else {
tosihisa	9:9ca3db7ed7cb	1020	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
tosihisa	9:9ca3db7ed7cb	1021	}
tosihisa	9:9ca3db7ed7cb	1022
tosihisa	9:9ca3db7ed7cb	1023	return ncl; /* Return new cluster number or error code */
tosihisa	9:9ca3db7ed7cb	1024	}
tosihisa	9:9ca3db7ed7cb	1025	#endif /* !_FS_READONLY */
tosihisa	9:9ca3db7ed7cb	1026
tosihisa	9:9ca3db7ed7cb	1027
tosihisa	9:9ca3db7ed7cb	1028
tosihisa	9:9ca3db7ed7cb	1029	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1030	/* FAT handling - Convert offset into cluster with link map table */
tosihisa	9:9ca3db7ed7cb	1031	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1032
tosihisa	9:9ca3db7ed7cb	1033	#if _USE_FASTSEEK
tosihisa	9:9ca3db7ed7cb	1034	static
tosihisa	9:9ca3db7ed7cb	1035	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
tosihisa	9:9ca3db7ed7cb	1036	FIL* fp, /* Pointer to the file object */
tosihisa	9:9ca3db7ed7cb	1037	DWORD ofs /* File offset to be converted to cluster# */
tosihisa	9:9ca3db7ed7cb	1038	)
tosihisa	9:9ca3db7ed7cb	1039	{
tosihisa	9:9ca3db7ed7cb	1040	DWORD cl, ncl, *tbl;
tosihisa	9:9ca3db7ed7cb	1041
tosihisa	9:9ca3db7ed7cb	1042
tosihisa	9:9ca3db7ed7cb	1043	tbl = fp->cltbl + 1; /* Top of CLMT */
tosihisa	9:9ca3db7ed7cb	1044	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
tosihisa	9:9ca3db7ed7cb	1045	for (;;) {
tosihisa	9:9ca3db7ed7cb	1046	ncl = tbl++; / Number of cluters in the fragment */
tosihisa	9:9ca3db7ed7cb	1047	if (!ncl) return 0; /* End of table? (error) */
tosihisa	9:9ca3db7ed7cb	1048	if (cl < ncl) break; /* In this fragment? */
tosihisa	9:9ca3db7ed7cb	1049	cl -= ncl; tbl++; /* Next fragment */
tosihisa	9:9ca3db7ed7cb	1050	}
tosihisa	9:9ca3db7ed7cb	1051	return cl + tbl; / Return the cluster number */
tosihisa	9:9ca3db7ed7cb	1052	}
tosihisa	9:9ca3db7ed7cb	1053	#endif /* _USE_FASTSEEK */
tosihisa	9:9ca3db7ed7cb	1054
tosihisa	9:9ca3db7ed7cb	1055
tosihisa	9:9ca3db7ed7cb	1056
tosihisa	9:9ca3db7ed7cb	1057	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1058	/* Directory handling - Set directory index */
tosihisa	9:9ca3db7ed7cb	1059	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1060
tosihisa	9:9ca3db7ed7cb	1061	static
tosihisa	9:9ca3db7ed7cb	1062	FRESULT dir_sdi (
tosihisa	9:9ca3db7ed7cb	1063	DIR_t dj, / Pointer to directory object */
tosihisa	9:9ca3db7ed7cb	1064	WORD idx /* Directory index number */
tosihisa	9:9ca3db7ed7cb	1065	)
tosihisa	9:9ca3db7ed7cb	1066	{
tosihisa	9:9ca3db7ed7cb	1067	DWORD clst;
tosihisa	9:9ca3db7ed7cb	1068	WORD ic;
tosihisa	9:9ca3db7ed7cb	1069
tosihisa	9:9ca3db7ed7cb	1070
tosihisa	9:9ca3db7ed7cb	1071	dj->index = idx;
tosihisa	9:9ca3db7ed7cb	1072	clst = dj->sclust;
tosihisa	9:9ca3db7ed7cb	1073	if (clst == 1 \|\| clst >= dj->fs->n_fatent) /* Check start cluster range */
tosihisa	9:9ca3db7ed7cb	1074	return FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	1075	if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
tosihisa	9:9ca3db7ed7cb	1076	clst = dj->fs->dirbase;
tosihisa	9:9ca3db7ed7cb	1077
tosihisa	9:9ca3db7ed7cb	1078	if (clst == 0) { /* Static table (root-dir in FAT12/16) */
tosihisa	9:9ca3db7ed7cb	1079	dj->clust = clst;
tosihisa	9:9ca3db7ed7cb	1080	if (idx >= dj->fs->n_rootdir) /* Index is out of range */
tosihisa	9:9ca3db7ed7cb	1081	return FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	1082	dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
tosihisa	9:9ca3db7ed7cb	1083	}
tosihisa	9:9ca3db7ed7cb	1084	else { /* Dynamic table (sub-dirs or root-dir in FAT32) */
tosihisa	9:9ca3db7ed7cb	1085	ic = SS(dj->fs) / SZ_DIR * dj->fs->csize; /* Entries per cluster */
tosihisa	9:9ca3db7ed7cb	1086	while (idx >= ic) { /* Follow cluster chain */
tosihisa	9:9ca3db7ed7cb	1087	clst = get_fat(dj->fs, clst); /* Get next cluster */
tosihisa	9:9ca3db7ed7cb	1088	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
tosihisa	9:9ca3db7ed7cb	1089	if (clst < 2 \|\| clst >= dj->fs->n_fatent) /* Reached to end of table or int error */
tosihisa	9:9ca3db7ed7cb	1090	return FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	1091	idx -= ic;
tosihisa	9:9ca3db7ed7cb	1092	}
tosihisa	9:9ca3db7ed7cb	1093	dj->clust = clst;
tosihisa	9:9ca3db7ed7cb	1094	dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
tosihisa	9:9ca3db7ed7cb	1095	}
tosihisa	9:9ca3db7ed7cb	1096
tosihisa	9:9ca3db7ed7cb	1097	dj->dir = dj->fs->win + (idx % (SS(dj->fs) / SZ_DIR)) * SZ_DIR; /* Ptr to the entry in the sector */
tosihisa	9:9ca3db7ed7cb	1098
tosihisa	9:9ca3db7ed7cb	1099	return FR_OK; /* Seek succeeded */
tosihisa	9:9ca3db7ed7cb	1100	}
tosihisa	9:9ca3db7ed7cb	1101
tosihisa	9:9ca3db7ed7cb	1102
tosihisa	9:9ca3db7ed7cb	1103
tosihisa	9:9ca3db7ed7cb	1104
tosihisa	9:9ca3db7ed7cb	1105	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1106	/* Directory handling - Move directory index next */
tosihisa	9:9ca3db7ed7cb	1107	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1108
tosihisa	9:9ca3db7ed7cb	1109	static
tosihisa	9:9ca3db7ed7cb	1110	FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not stretch */
tosihisa	9:9ca3db7ed7cb	1111	DIR_t dj, / Pointer to directory object */
tosihisa	9:9ca3db7ed7cb	1112	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
tosihisa	9:9ca3db7ed7cb	1113	)
tosihisa	9:9ca3db7ed7cb	1114	{
tosihisa	9:9ca3db7ed7cb	1115	DWORD clst;
tosihisa	9:9ca3db7ed7cb	1116	WORD i;
tosihisa	9:9ca3db7ed7cb	1117
tosihisa	9:9ca3db7ed7cb	1118
tosihisa	9:9ca3db7ed7cb	1119	i = dj->index + 1;
tosihisa	9:9ca3db7ed7cb	1120	if (!i \|\| !dj->sect) /* Report EOT when index has reached 65535 */
tosihisa	9:9ca3db7ed7cb	1121	return FR_NO_FILE;
tosihisa	9:9ca3db7ed7cb	1122
tosihisa	9:9ca3db7ed7cb	1123	if (!(i % (SS(dj->fs) / SZ_DIR))) { /* Sector changed? */
tosihisa	9:9ca3db7ed7cb	1124	dj->sect++; /* Next sector */
tosihisa	9:9ca3db7ed7cb	1125
tosihisa	9:9ca3db7ed7cb	1126	if (dj->clust == 0) { /* Static table */
tosihisa	9:9ca3db7ed7cb	1127	if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */
tosihisa	9:9ca3db7ed7cb	1128	return FR_NO_FILE;
tosihisa	9:9ca3db7ed7cb	1129	}
tosihisa	9:9ca3db7ed7cb	1130	else { /* Dynamic table */
tosihisa	9:9ca3db7ed7cb	1131	if (((i / (SS(dj->fs) / SZ_DIR)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
tosihisa	9:9ca3db7ed7cb	1132	clst = get_fat(dj->fs, dj->clust); /* Get next cluster */
tosihisa	9:9ca3db7ed7cb	1133	if (clst <= 1) return FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	1134	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	1135	if (clst >= dj->fs->n_fatent) { /* When it reached end of dynamic table */
tosihisa	9:9ca3db7ed7cb	1136	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	1137	BYTE c;
tosihisa	9:9ca3db7ed7cb	1138	if (!stretch) return FR_NO_FILE; /* When do not stretch, report EOT */
tosihisa	9:9ca3db7ed7cb	1139	clst = create_chain(dj->fs, dj->clust); /* Stretch cluster chain */
tosihisa	9:9ca3db7ed7cb	1140	if (clst == 0) return FR_DENIED; /* No free cluster */
tosihisa	9:9ca3db7ed7cb	1141	if (clst == 1) return FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	1142	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	1143	/* Clean-up stretched table */
tosihisa	9:9ca3db7ed7cb	1144	if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */
tosihisa	9:9ca3db7ed7cb	1145	mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */
tosihisa	9:9ca3db7ed7cb	1146	dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */
tosihisa	9:9ca3db7ed7cb	1147	for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */
tosihisa	9:9ca3db7ed7cb	1148	dj->fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	1149	if (move_window(dj->fs, 0)) return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	1150	dj->fs->winsect++;
tosihisa	9:9ca3db7ed7cb	1151	}
tosihisa	9:9ca3db7ed7cb	1152	dj->fs->winsect -= c; /* Rewind window address */
tosihisa	9:9ca3db7ed7cb	1153	#else
tosihisa	9:9ca3db7ed7cb	1154	return FR_NO_FILE; /* Report EOT */
tosihisa	9:9ca3db7ed7cb	1155	#endif
tosihisa	9:9ca3db7ed7cb	1156	}
tosihisa	9:9ca3db7ed7cb	1157	dj->clust = clst; /* Initialize data for new cluster */
tosihisa	9:9ca3db7ed7cb	1158	dj->sect = clust2sect(dj->fs, clst);
tosihisa	9:9ca3db7ed7cb	1159	}
tosihisa	9:9ca3db7ed7cb	1160	}
tosihisa	9:9ca3db7ed7cb	1161	}
tosihisa	9:9ca3db7ed7cb	1162
tosihisa	9:9ca3db7ed7cb	1163	dj->index = i;
tosihisa	9:9ca3db7ed7cb	1164	dj->dir = dj->fs->win + (i % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;
tosihisa	9:9ca3db7ed7cb	1165
tosihisa	9:9ca3db7ed7cb	1166	return FR_OK;
tosihisa	9:9ca3db7ed7cb	1167	}
tosihisa	9:9ca3db7ed7cb	1168
tosihisa	9:9ca3db7ed7cb	1169
tosihisa	9:9ca3db7ed7cb	1170
tosihisa	9:9ca3db7ed7cb	1171
tosihisa	9:9ca3db7ed7cb	1172	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1173	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
tosihisa	9:9ca3db7ed7cb	1174	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1175	#if _USE_LFN
tosihisa	9:9ca3db7ed7cb	1176	static
tosihisa	9:9ca3db7ed7cb	1177	const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN chars in the directory entry */
tosihisa	9:9ca3db7ed7cb	1178
tosihisa	9:9ca3db7ed7cb	1179
tosihisa	9:9ca3db7ed7cb	1180	static
tosihisa	9:9ca3db7ed7cb	1181	int cmp_lfn ( /* 1:Matched, 0:Not matched */
tosihisa	9:9ca3db7ed7cb	1182	WCHAR lfnbuf, / Pointer to the LFN to be compared */
tosihisa	9:9ca3db7ed7cb	1183	BYTE dir / Pointer to the directory entry containing a part of LFN */
tosihisa	9:9ca3db7ed7cb	1184	)
tosihisa	9:9ca3db7ed7cb	1185	{
tosihisa	9:9ca3db7ed7cb	1186	UINT i, s;
tosihisa	9:9ca3db7ed7cb	1187	WCHAR wc, uc;
tosihisa	9:9ca3db7ed7cb	1188
tosihisa	9:9ca3db7ed7cb	1189
tosihisa	9:9ca3db7ed7cb	1190	i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
tosihisa	9:9ca3db7ed7cb	1191	s = 0; wc = 1;
tosihisa	9:9ca3db7ed7cb	1192	do {
tosihisa	9:9ca3db7ed7cb	1193	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
tosihisa	9:9ca3db7ed7cb	1194	if (wc) { /* Last char has not been processed */
tosihisa	9:9ca3db7ed7cb	1195	wc = ff_wtoupper(uc); /* Convert it to upper case */
tosihisa	9:9ca3db7ed7cb	1196	if (i >= _MAX_LFN \|\| wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
tosihisa	9:9ca3db7ed7cb	1197	return 0; /* Not matched */
tosihisa	9:9ca3db7ed7cb	1198	} else {
tosihisa	9:9ca3db7ed7cb	1199	if (uc != 0xFFFF) return 0; /* Check filler */
tosihisa	9:9ca3db7ed7cb	1200	}
tosihisa	9:9ca3db7ed7cb	1201	} while (++s < 13); /* Repeat until all chars in the entry are checked */
tosihisa	9:9ca3db7ed7cb	1202
tosihisa	9:9ca3db7ed7cb	1203	if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) /* Last segment matched but different length */
tosihisa	9:9ca3db7ed7cb	1204	return 0;
tosihisa	9:9ca3db7ed7cb	1205
tosihisa	9:9ca3db7ed7cb	1206	return 1; /* The part of LFN matched */
tosihisa	9:9ca3db7ed7cb	1207	}
tosihisa	9:9ca3db7ed7cb	1208
tosihisa	9:9ca3db7ed7cb	1209
tosihisa	9:9ca3db7ed7cb	1210
tosihisa	9:9ca3db7ed7cb	1211	static
tosihisa	9:9ca3db7ed7cb	1212	int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
tosihisa	9:9ca3db7ed7cb	1213	WCHAR lfnbuf, / Pointer to the Unicode-LFN buffer */
tosihisa	9:9ca3db7ed7cb	1214	BYTE dir / Pointer to the directory entry */
tosihisa	9:9ca3db7ed7cb	1215	)
tosihisa	9:9ca3db7ed7cb	1216	{
tosihisa	9:9ca3db7ed7cb	1217	UINT i, s;
tosihisa	9:9ca3db7ed7cb	1218	WCHAR wc, uc;
tosihisa	9:9ca3db7ed7cb	1219
tosihisa	9:9ca3db7ed7cb	1220
tosihisa	9:9ca3db7ed7cb	1221	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
tosihisa	9:9ca3db7ed7cb	1222
tosihisa	9:9ca3db7ed7cb	1223	s = 0; wc = 1;
tosihisa	9:9ca3db7ed7cb	1224	do {
tosihisa	9:9ca3db7ed7cb	1225	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
tosihisa	9:9ca3db7ed7cb	1226	if (wc) { /* Last char has not been processed */
tosihisa	9:9ca3db7ed7cb	1227	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
tosihisa	9:9ca3db7ed7cb	1228	lfnbuf[i++] = wc = uc; /* Store it */
tosihisa	9:9ca3db7ed7cb	1229	} else {
tosihisa	9:9ca3db7ed7cb	1230	if (uc != 0xFFFF) return 0; /* Check filler */
tosihisa	9:9ca3db7ed7cb	1231	}
tosihisa	9:9ca3db7ed7cb	1232	} while (++s < 13); /* Read all character in the entry */
tosihisa	9:9ca3db7ed7cb	1233
tosihisa	9:9ca3db7ed7cb	1234	if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
tosihisa	9:9ca3db7ed7cb	1235	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
tosihisa	9:9ca3db7ed7cb	1236	lfnbuf[i] = 0;
tosihisa	9:9ca3db7ed7cb	1237	}
tosihisa	9:9ca3db7ed7cb	1238
tosihisa	9:9ca3db7ed7cb	1239	return 1;
tosihisa	9:9ca3db7ed7cb	1240	}
tosihisa	9:9ca3db7ed7cb	1241
tosihisa	9:9ca3db7ed7cb	1242
tosihisa	9:9ca3db7ed7cb	1243	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	1244	static
tosihisa	9:9ca3db7ed7cb	1245	void fit_lfn (
tosihisa	9:9ca3db7ed7cb	1246	const WCHAR lfnbuf, / Pointer to the LFN buffer */
tosihisa	9:9ca3db7ed7cb	1247	BYTE dir, / Pointer to the directory entry */
tosihisa	9:9ca3db7ed7cb	1248	BYTE ord, /* LFN order (1-20) */
tosihisa	9:9ca3db7ed7cb	1249	BYTE sum /* SFN sum */
tosihisa	9:9ca3db7ed7cb	1250	)
tosihisa	9:9ca3db7ed7cb	1251	{
tosihisa	9:9ca3db7ed7cb	1252	UINT i, s;
tosihisa	9:9ca3db7ed7cb	1253	WCHAR wc;
tosihisa	9:9ca3db7ed7cb	1254
tosihisa	9:9ca3db7ed7cb	1255
tosihisa	9:9ca3db7ed7cb	1256	dir[LDIR_Chksum] = sum; /* Set check sum */
tosihisa	9:9ca3db7ed7cb	1257	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
tosihisa	9:9ca3db7ed7cb	1258	dir[LDIR_Type] = 0;
tosihisa	9:9ca3db7ed7cb	1259	ST_WORD(dir+LDIR_FstClusLO, 0);
tosihisa	9:9ca3db7ed7cb	1260
tosihisa	9:9ca3db7ed7cb	1261	i = (ord - 1) * 13; /* Get offset in the LFN buffer */
tosihisa	9:9ca3db7ed7cb	1262	s = wc = 0;
tosihisa	9:9ca3db7ed7cb	1263	do {
tosihisa	9:9ca3db7ed7cb	1264	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */
tosihisa	9:9ca3db7ed7cb	1265	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
tosihisa	9:9ca3db7ed7cb	1266	if (!wc) wc = 0xFFFF; /* Padding chars following last char */
tosihisa	9:9ca3db7ed7cb	1267	} while (++s < 13);
tosihisa	9:9ca3db7ed7cb	1268	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLE; /* Bottom LFN part is the start of LFN sequence */
tosihisa	9:9ca3db7ed7cb	1269	dir[LDIR_Ord] = ord; /* Set the LFN order */
tosihisa	9:9ca3db7ed7cb	1270	}
tosihisa	9:9ca3db7ed7cb	1271
tosihisa	9:9ca3db7ed7cb	1272	#endif
tosihisa	9:9ca3db7ed7cb	1273	#endif
tosihisa	9:9ca3db7ed7cb	1274
tosihisa	9:9ca3db7ed7cb	1275
tosihisa	9:9ca3db7ed7cb	1276
tosihisa	9:9ca3db7ed7cb	1277	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1278	/* Create numbered name */
tosihisa	9:9ca3db7ed7cb	1279	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1280	#if _USE_LFN
tosihisa	9:9ca3db7ed7cb	1281	void gen_numname (
tosihisa	9:9ca3db7ed7cb	1282	BYTE dst, / Pointer to generated SFN */
tosihisa	9:9ca3db7ed7cb	1283	const BYTE src, / Pointer to source SFN to be modified */
tosihisa	9:9ca3db7ed7cb	1284	const WCHAR lfn, / Pointer to LFN */
tosihisa	9:9ca3db7ed7cb	1285	WORD seq /* Sequence number */
tosihisa	9:9ca3db7ed7cb	1286	)
tosihisa	9:9ca3db7ed7cb	1287	{
tosihisa	9:9ca3db7ed7cb	1288	BYTE ns[8], c;
tosihisa	9:9ca3db7ed7cb	1289	UINT i, j;
tosihisa	9:9ca3db7ed7cb	1290
tosihisa	9:9ca3db7ed7cb	1291
tosihisa	9:9ca3db7ed7cb	1292	mem_cpy(dst, src, 11);
tosihisa	9:9ca3db7ed7cb	1293
tosihisa	9:9ca3db7ed7cb	1294	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
tosihisa	9:9ca3db7ed7cb	1295	do seq = (seq >> 1) + (seq << 15) + (WORD)lfn++; while (lfn);
tosihisa	9:9ca3db7ed7cb	1296	}
tosihisa	9:9ca3db7ed7cb	1297
tosihisa	9:9ca3db7ed7cb	1298	/* itoa (hexdecimal) */
tosihisa	9:9ca3db7ed7cb	1299	i = 7;
tosihisa	9:9ca3db7ed7cb	1300	do {
tosihisa	9:9ca3db7ed7cb	1301	c = (seq % 16) + '0';
tosihisa	9:9ca3db7ed7cb	1302	if (c > '9') c += 7;
tosihisa	9:9ca3db7ed7cb	1303	ns[i--] = c;
tosihisa	9:9ca3db7ed7cb	1304	seq /= 16;
tosihisa	9:9ca3db7ed7cb	1305	} while (seq);
tosihisa	9:9ca3db7ed7cb	1306	ns[i] = '~';
tosihisa	9:9ca3db7ed7cb	1307
tosihisa	9:9ca3db7ed7cb	1308	/* Append the number */
tosihisa	9:9ca3db7ed7cb	1309	for (j = 0; j < i && dst[j] != ' '; j++) {
tosihisa	9:9ca3db7ed7cb	1310	if (IsDBCS1(dst[j])) {
tosihisa	9:9ca3db7ed7cb	1311	if (j == i - 1) break;
tosihisa	9:9ca3db7ed7cb	1312	j++;
tosihisa	9:9ca3db7ed7cb	1313	}
tosihisa	9:9ca3db7ed7cb	1314	}
tosihisa	9:9ca3db7ed7cb	1315	do {
tosihisa	9:9ca3db7ed7cb	1316	dst[j++] = (i < 8) ? ns[i++] : ' ';
tosihisa	9:9ca3db7ed7cb	1317	} while (j < 8);
tosihisa	9:9ca3db7ed7cb	1318	}
tosihisa	9:9ca3db7ed7cb	1319	#endif
tosihisa	9:9ca3db7ed7cb	1320
tosihisa	9:9ca3db7ed7cb	1321
tosihisa	9:9ca3db7ed7cb	1322
tosihisa	9:9ca3db7ed7cb	1323
tosihisa	9:9ca3db7ed7cb	1324	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1325	/* Calculate sum of an SFN */
tosihisa	9:9ca3db7ed7cb	1326	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1327	#if _USE_LFN
tosihisa	9:9ca3db7ed7cb	1328	static
tosihisa	9:9ca3db7ed7cb	1329	BYTE sum_sfn (
tosihisa	9:9ca3db7ed7cb	1330	const BYTE dir / Ptr to directory entry */
tosihisa	9:9ca3db7ed7cb	1331	)
tosihisa	9:9ca3db7ed7cb	1332	{
tosihisa	9:9ca3db7ed7cb	1333	BYTE sum = 0;
tosihisa	9:9ca3db7ed7cb	1334	UINT n = 11;
tosihisa	9:9ca3db7ed7cb	1335
tosihisa	9:9ca3db7ed7cb	1336	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
tosihisa	9:9ca3db7ed7cb	1337	return sum;
tosihisa	9:9ca3db7ed7cb	1338	}
tosihisa	9:9ca3db7ed7cb	1339	#endif
tosihisa	9:9ca3db7ed7cb	1340
tosihisa	9:9ca3db7ed7cb	1341
tosihisa	9:9ca3db7ed7cb	1342
tosihisa	9:9ca3db7ed7cb	1343
tosihisa	9:9ca3db7ed7cb	1344	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1345	/* Directory handling - Find an object in the directory */
tosihisa	9:9ca3db7ed7cb	1346	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1347
tosihisa	9:9ca3db7ed7cb	1348	static
tosihisa	9:9ca3db7ed7cb	1349	FRESULT dir_find (
tosihisa	9:9ca3db7ed7cb	1350	DIR_t dj / Pointer to the directory object linked to the file name */
tosihisa	9:9ca3db7ed7cb	1351	)
tosihisa	9:9ca3db7ed7cb	1352	{
tosihisa	9:9ca3db7ed7cb	1353	FRESULT res;
tosihisa	9:9ca3db7ed7cb	1354	BYTE c, *dir;
tosihisa	9:9ca3db7ed7cb	1355	#if _USE_LFN
tosihisa	9:9ca3db7ed7cb	1356	BYTE a, ord, sum;
tosihisa	9:9ca3db7ed7cb	1357	#endif
tosihisa	9:9ca3db7ed7cb	1358
tosihisa	9:9ca3db7ed7cb	1359	res = dir_sdi(dj, 0); /* Rewind directory object */
tosihisa	9:9ca3db7ed7cb	1360	if (res != FR_OK) return res;
tosihisa	9:9ca3db7ed7cb	1361
tosihisa	9:9ca3db7ed7cb	1362	#if _USE_LFN
tosihisa	9:9ca3db7ed7cb	1363	ord = sum = 0xFF;
tosihisa	9:9ca3db7ed7cb	1364	#endif
tosihisa	9:9ca3db7ed7cb	1365	do {
tosihisa	9:9ca3db7ed7cb	1366	res = move_window(dj->fs, dj->sect);
tosihisa	9:9ca3db7ed7cb	1367	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	1368	dir = dj->dir; /* Ptr to the directory entry of current index */
tosihisa	9:9ca3db7ed7cb	1369	c = dir[DIR_Name];
tosihisa	9:9ca3db7ed7cb	1370	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
tosihisa	9:9ca3db7ed7cb	1371	#if _USE_LFN /* LFN configuration */
tosihisa	9:9ca3db7ed7cb	1372	a = dir[DIR_Attr] & AM_MASK;
tosihisa	9:9ca3db7ed7cb	1373	if (c == DDE \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
tosihisa	9:9ca3db7ed7cb	1374	ord = 0xFF;
tosihisa	9:9ca3db7ed7cb	1375	} else {
tosihisa	9:9ca3db7ed7cb	1376	if (a == AM_LFN) { /* An LFN entry is found */
tosihisa	9:9ca3db7ed7cb	1377	if (dj->lfn) {
tosihisa	9:9ca3db7ed7cb	1378	if (c & LLE) { /* Is it start of LFN sequence? */
tosihisa	9:9ca3db7ed7cb	1379	sum = dir[LDIR_Chksum];
tosihisa	9:9ca3db7ed7cb	1380	c &= ~LLE; ord = c; /* LFN start order */
tosihisa	9:9ca3db7ed7cb	1381	dj->lfn_idx = dj->index;
tosihisa	9:9ca3db7ed7cb	1382	}
tosihisa	9:9ca3db7ed7cb	1383	/* Check validity of the LFN entry and compare it with given name */
tosihisa	9:9ca3db7ed7cb	1384	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
tosihisa	9:9ca3db7ed7cb	1385	}
tosihisa	9:9ca3db7ed7cb	1386	} else { /* An SFN entry is found */
tosihisa	9:9ca3db7ed7cb	1387	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
tosihisa	9:9ca3db7ed7cb	1388	ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */
tosihisa	9:9ca3db7ed7cb	1389	if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */
tosihisa	9:9ca3db7ed7cb	1390	}
tosihisa	9:9ca3db7ed7cb	1391	}
tosihisa	9:9ca3db7ed7cb	1392	#else /* Non LFN configuration */
tosihisa	9:9ca3db7ed7cb	1393	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
tosihisa	9:9ca3db7ed7cb	1394	break;
tosihisa	9:9ca3db7ed7cb	1395	#endif
tosihisa	9:9ca3db7ed7cb	1396	res = dir_next(dj, 0); /* Next entry */
tosihisa	9:9ca3db7ed7cb	1397	} while (res == FR_OK);
tosihisa	9:9ca3db7ed7cb	1398
tosihisa	9:9ca3db7ed7cb	1399	return res;
tosihisa	9:9ca3db7ed7cb	1400	}
tosihisa	9:9ca3db7ed7cb	1401
tosihisa	9:9ca3db7ed7cb	1402
tosihisa	9:9ca3db7ed7cb	1403
tosihisa	9:9ca3db7ed7cb	1404
tosihisa	9:9ca3db7ed7cb	1405	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1406	/* Read an object from the directory */
tosihisa	9:9ca3db7ed7cb	1407	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1408	#if _FS_MINIMIZE <= 1
tosihisa	9:9ca3db7ed7cb	1409	static
tosihisa	9:9ca3db7ed7cb	1410	FRESULT dir_read (
tosihisa	9:9ca3db7ed7cb	1411	DIR_t dj / Pointer to the directory object that pointing the entry to be read */
tosihisa	9:9ca3db7ed7cb	1412	)
tosihisa	9:9ca3db7ed7cb	1413	{
tosihisa	9:9ca3db7ed7cb	1414	FRESULT res;
tosihisa	9:9ca3db7ed7cb	1415	BYTE c, *dir;
tosihisa	9:9ca3db7ed7cb	1416	#if _USE_LFN
tosihisa	9:9ca3db7ed7cb	1417	BYTE a, ord = 0xFF, sum = 0xFF;
tosihisa	9:9ca3db7ed7cb	1418	#endif
tosihisa	9:9ca3db7ed7cb	1419
tosihisa	9:9ca3db7ed7cb	1420	res = FR_NO_FILE;
tosihisa	9:9ca3db7ed7cb	1421	while (dj->sect) {
tosihisa	9:9ca3db7ed7cb	1422	res = move_window(dj->fs, dj->sect);
tosihisa	9:9ca3db7ed7cb	1423	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	1424	dir = dj->dir; /* Ptr to the directory entry of current index */
tosihisa	9:9ca3db7ed7cb	1425	c = dir[DIR_Name];
tosihisa	9:9ca3db7ed7cb	1426	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
tosihisa	9:9ca3db7ed7cb	1427	#if _USE_LFN /* LFN configuration */
tosihisa	9:9ca3db7ed7cb	1428	a = dir[DIR_Attr] & AM_MASK;
tosihisa	9:9ca3db7ed7cb	1429	if (c == DDE \|\| (!_FS_RPATH && c == '.') \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
tosihisa	9:9ca3db7ed7cb	1430	ord = 0xFF;
tosihisa	9:9ca3db7ed7cb	1431	} else {
tosihisa	9:9ca3db7ed7cb	1432	if (a == AM_LFN) { /* An LFN entry is found */
tosihisa	9:9ca3db7ed7cb	1433	if (c & LLE) { /* Is it start of LFN sequence? */
tosihisa	9:9ca3db7ed7cb	1434	sum = dir[LDIR_Chksum];
tosihisa	9:9ca3db7ed7cb	1435	c &= ~LLE; ord = c;
tosihisa	9:9ca3db7ed7cb	1436	dj->lfn_idx = dj->index;
tosihisa	9:9ca3db7ed7cb	1437	}
tosihisa	9:9ca3db7ed7cb	1438	/* Check LFN validity and capture it */
tosihisa	9:9ca3db7ed7cb	1439	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
tosihisa	9:9ca3db7ed7cb	1440	} else { /* An SFN entry is found */
tosihisa	9:9ca3db7ed7cb	1441	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
tosihisa	9:9ca3db7ed7cb	1442	dj->lfn_idx = 0xFFFF; /* It has no LFN. */
tosihisa	9:9ca3db7ed7cb	1443	break;
tosihisa	9:9ca3db7ed7cb	1444	}
tosihisa	9:9ca3db7ed7cb	1445	}
tosihisa	9:9ca3db7ed7cb	1446	#else /* Non LFN configuration */
tosihisa	9:9ca3db7ed7cb	1447	if (c != DDE && (_FS_RPATH \|\| c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
tosihisa	9:9ca3db7ed7cb	1448	break;
tosihisa	9:9ca3db7ed7cb	1449	#endif
tosihisa	9:9ca3db7ed7cb	1450	res = dir_next(dj, 0); /* Next entry */
tosihisa	9:9ca3db7ed7cb	1451	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	1452	}
tosihisa	9:9ca3db7ed7cb	1453
tosihisa	9:9ca3db7ed7cb	1454	if (res != FR_OK) dj->sect = 0;
tosihisa	9:9ca3db7ed7cb	1455
tosihisa	9:9ca3db7ed7cb	1456	return res;
tosihisa	9:9ca3db7ed7cb	1457	}
tosihisa	9:9ca3db7ed7cb	1458	#endif
tosihisa	9:9ca3db7ed7cb	1459
tosihisa	9:9ca3db7ed7cb	1460
tosihisa	9:9ca3db7ed7cb	1461
tosihisa	9:9ca3db7ed7cb	1462	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1463	/* Register an object to the directory */
tosihisa	9:9ca3db7ed7cb	1464	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1465	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	1466	static
tosihisa	9:9ca3db7ed7cb	1467	FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
tosihisa	9:9ca3db7ed7cb	1468	DIR_t dj / Target directory with object name to be created */
tosihisa	9:9ca3db7ed7cb	1469	)
tosihisa	9:9ca3db7ed7cb	1470	{
tosihisa	9:9ca3db7ed7cb	1471	FRESULT res;
tosihisa	9:9ca3db7ed7cb	1472	BYTE c, *dir;
tosihisa	9:9ca3db7ed7cb	1473	#if _USE_LFN /* LFN configuration */
tosihisa	9:9ca3db7ed7cb	1474	WORD n, ne, is;
tosihisa	9:9ca3db7ed7cb	1475	BYTE sn[12], *fn, sum;
tosihisa	9:9ca3db7ed7cb	1476	WCHAR *lfn;
tosihisa	9:9ca3db7ed7cb	1477
tosihisa	9:9ca3db7ed7cb	1478
tosihisa	9:9ca3db7ed7cb	1479	fn = dj->fn; lfn = dj->lfn;
tosihisa	9:9ca3db7ed7cb	1480	mem_cpy(sn, fn, 12);
tosihisa	9:9ca3db7ed7cb	1481
tosihisa	9:9ca3db7ed7cb	1482	if (_FS_RPATH && (sn[NS] & NS_DOT)) /* Cannot create dot entry */
tosihisa	9:9ca3db7ed7cb	1483	return FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	1484
tosihisa	9:9ca3db7ed7cb	1485	if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
tosihisa	9:9ca3db7ed7cb	1486	fn[NS] = 0; dj->lfn = 0; /* Find only SFN */
tosihisa	9:9ca3db7ed7cb	1487	for (n = 1; n < 100; n++) {
tosihisa	9:9ca3db7ed7cb	1488	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
tosihisa	9:9ca3db7ed7cb	1489	res = dir_find(dj); /* Check if the name collides with existing SFN */
tosihisa	9:9ca3db7ed7cb	1490	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	1491	}
tosihisa	9:9ca3db7ed7cb	1492	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
tosihisa	9:9ca3db7ed7cb	1493	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
tosihisa	9:9ca3db7ed7cb	1494	fn[NS] = sn[NS]; dj->lfn = lfn;
tosihisa	9:9ca3db7ed7cb	1495	}
tosihisa	9:9ca3db7ed7cb	1496
tosihisa	9:9ca3db7ed7cb	1497	if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve an SFN + LFN entries. */
tosihisa	9:9ca3db7ed7cb	1498	for (ne = 0; lfn[ne]; ne++) ;
tosihisa	9:9ca3db7ed7cb	1499	ne = (ne + 25) / 13;
tosihisa	9:9ca3db7ed7cb	1500	} else { /* Otherwise reserve only an SFN entry. */
tosihisa	9:9ca3db7ed7cb	1501	ne = 1;
tosihisa	9:9ca3db7ed7cb	1502	}
tosihisa	9:9ca3db7ed7cb	1503
tosihisa	9:9ca3db7ed7cb	1504	/* Reserve contiguous entries */
tosihisa	9:9ca3db7ed7cb	1505	res = dir_sdi(dj, 0);
tosihisa	9:9ca3db7ed7cb	1506	if (res != FR_OK) return res;
tosihisa	9:9ca3db7ed7cb	1507	n = is = 0;
tosihisa	9:9ca3db7ed7cb	1508	do {
tosihisa	9:9ca3db7ed7cb	1509	res = move_window(dj->fs, dj->sect);
tosihisa	9:9ca3db7ed7cb	1510	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	1511	c = dj->dir; / Check the entry status */
tosihisa	9:9ca3db7ed7cb	1512	if (c == DDE \|\| c == 0) { /* Is it a blank entry? */
tosihisa	9:9ca3db7ed7cb	1513	if (n == 0) is = dj->index; /* First index of the contiguous entry */
tosihisa	9:9ca3db7ed7cb	1514	if (++n == ne) break; /* A contiguous entry that required count is found */
tosihisa	9:9ca3db7ed7cb	1515	} else {
tosihisa	9:9ca3db7ed7cb	1516	n = 0; /* Not a blank entry. Restart to search */
tosihisa	9:9ca3db7ed7cb	1517	}
tosihisa	9:9ca3db7ed7cb	1518	res = dir_next(dj, 1); /* Next entry with table stretch */
tosihisa	9:9ca3db7ed7cb	1519	} while (res == FR_OK);
tosihisa	9:9ca3db7ed7cb	1520
tosihisa	9:9ca3db7ed7cb	1521	if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */
tosihisa	9:9ca3db7ed7cb	1522	res = dir_sdi(dj, is);
tosihisa	9:9ca3db7ed7cb	1523	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	1524	sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */
tosihisa	9:9ca3db7ed7cb	1525	ne--;
tosihisa	9:9ca3db7ed7cb	1526	do { /* Store LFN entries in bottom first */
tosihisa	9:9ca3db7ed7cb	1527	res = move_window(dj->fs, dj->sect);
tosihisa	9:9ca3db7ed7cb	1528	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	1529	fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
tosihisa	9:9ca3db7ed7cb	1530	dj->fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	1531	res = dir_next(dj, 0); /* Next entry */
tosihisa	9:9ca3db7ed7cb	1532	} while (res == FR_OK && --ne);
tosihisa	9:9ca3db7ed7cb	1533	}
tosihisa	9:9ca3db7ed7cb	1534	}
tosihisa	9:9ca3db7ed7cb	1535
tosihisa	9:9ca3db7ed7cb	1536	#else /* Non LFN configuration */
tosihisa	9:9ca3db7ed7cb	1537	res = dir_sdi(dj, 0);
tosihisa	9:9ca3db7ed7cb	1538	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	1539	do { /* Find a blank entry for the SFN */
tosihisa	9:9ca3db7ed7cb	1540	res = move_window(dj->fs, dj->sect);
tosihisa	9:9ca3db7ed7cb	1541	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	1542	c = *dj->dir;
tosihisa	9:9ca3db7ed7cb	1543	if (c == DDE \|\| c == 0) break; /* Is it a blank entry? */
tosihisa	9:9ca3db7ed7cb	1544	res = dir_next(dj, 1); /* Next entry with table stretch */
tosihisa	9:9ca3db7ed7cb	1545	} while (res == FR_OK);
tosihisa	9:9ca3db7ed7cb	1546	}
tosihisa	9:9ca3db7ed7cb	1547	#endif
tosihisa	9:9ca3db7ed7cb	1548
tosihisa	9:9ca3db7ed7cb	1549	if (res == FR_OK) { /* Initialize the SFN entry */
tosihisa	9:9ca3db7ed7cb	1550	res = move_window(dj->fs, dj->sect);
tosihisa	9:9ca3db7ed7cb	1551	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	1552	dir = dj->dir;
tosihisa	9:9ca3db7ed7cb	1553	mem_set(dir, 0, SZ_DIR); /* Clean the entry */
tosihisa	9:9ca3db7ed7cb	1554	mem_cpy(dir, dj->fn, 11); /* Put SFN */
tosihisa	9:9ca3db7ed7cb	1555	#if _USE_LFN
tosihisa	9:9ca3db7ed7cb	1556	dir[DIR_NTres] = (dj->fn+NS) & (NS_BODY \| NS_EXT); / Put NT flag */
tosihisa	9:9ca3db7ed7cb	1557	#endif
tosihisa	9:9ca3db7ed7cb	1558	dj->fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	1559	}
tosihisa	9:9ca3db7ed7cb	1560	}
tosihisa	9:9ca3db7ed7cb	1561
tosihisa	9:9ca3db7ed7cb	1562	return res;
tosihisa	9:9ca3db7ed7cb	1563	}
tosihisa	9:9ca3db7ed7cb	1564	#endif /* !_FS_READONLY */
tosihisa	9:9ca3db7ed7cb	1565
tosihisa	9:9ca3db7ed7cb	1566
tosihisa	9:9ca3db7ed7cb	1567
tosihisa	9:9ca3db7ed7cb	1568
tosihisa	9:9ca3db7ed7cb	1569	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1570	/* Remove an object from the directory */
tosihisa	9:9ca3db7ed7cb	1571	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1572	#if !_FS_READONLY && !_FS_MINIMIZE
tosihisa	9:9ca3db7ed7cb	1573	static
tosihisa	9:9ca3db7ed7cb	1574	FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
tosihisa	9:9ca3db7ed7cb	1575	DIR_t dj / Directory object pointing the entry to be removed */
tosihisa	9:9ca3db7ed7cb	1576	)
tosihisa	9:9ca3db7ed7cb	1577	{
tosihisa	9:9ca3db7ed7cb	1578	FRESULT res;
tosihisa	9:9ca3db7ed7cb	1579	#if _USE_LFN /* LFN configuration */
tosihisa	9:9ca3db7ed7cb	1580	WORD i;
tosihisa	9:9ca3db7ed7cb	1581
tosihisa	9:9ca3db7ed7cb	1582	i = dj->index; /* SFN index */
tosihisa	9:9ca3db7ed7cb	1583	res = dir_sdi(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */
tosihisa	9:9ca3db7ed7cb	1584	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	1585	do {
tosihisa	9:9ca3db7ed7cb	1586	res = move_window(dj->fs, dj->sect);
tosihisa	9:9ca3db7ed7cb	1587	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	1588	dj->dir = DDE; / Mark the entry "deleted" */
tosihisa	9:9ca3db7ed7cb	1589	dj->fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	1590	if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
tosihisa	9:9ca3db7ed7cb	1591	res = dir_next(dj, 0); /* Next entry */
tosihisa	9:9ca3db7ed7cb	1592	} while (res == FR_OK);
tosihisa	9:9ca3db7ed7cb	1593	if (res == FR_NO_FILE) res = FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	1594	}
tosihisa	9:9ca3db7ed7cb	1595
tosihisa	9:9ca3db7ed7cb	1596	#else /* Non LFN configuration */
tosihisa	9:9ca3db7ed7cb	1597	res = dir_sdi(dj, dj->index);
tosihisa	9:9ca3db7ed7cb	1598	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	1599	res = move_window(dj->fs, dj->sect);
tosihisa	9:9ca3db7ed7cb	1600	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	1601	dj->dir = DDE; / Mark the entry "deleted" */
tosihisa	9:9ca3db7ed7cb	1602	dj->fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	1603	}
tosihisa	9:9ca3db7ed7cb	1604	}
tosihisa	9:9ca3db7ed7cb	1605	#endif
tosihisa	9:9ca3db7ed7cb	1606
tosihisa	9:9ca3db7ed7cb	1607	return res;
tosihisa	9:9ca3db7ed7cb	1608	}
tosihisa	9:9ca3db7ed7cb	1609	#endif /* !_FS_READONLY */
tosihisa	9:9ca3db7ed7cb	1610
tosihisa	9:9ca3db7ed7cb	1611
tosihisa	9:9ca3db7ed7cb	1612
tosihisa	9:9ca3db7ed7cb	1613
tosihisa	9:9ca3db7ed7cb	1614	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1615	/* Pick a segment and create the object name in directory form */
tosihisa	9:9ca3db7ed7cb	1616	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1617
tosihisa	9:9ca3db7ed7cb	1618	static
tosihisa	9:9ca3db7ed7cb	1619	FRESULT create_name (
tosihisa	9:9ca3db7ed7cb	1620	DIR_t dj, / Pointer to the directory object */
tosihisa	9:9ca3db7ed7cb	1621	const TCHAR *path / Pointer to pointer to the segment in the path string */
tosihisa	9:9ca3db7ed7cb	1622	)
tosihisa	9:9ca3db7ed7cb	1623	{
tosihisa	9:9ca3db7ed7cb	1624	#ifdef _EXCVT
tosihisa	9:9ca3db7ed7cb	1625	static const BYTE excvt[] = _EXCVT; /* Upper conversion table for extended chars */
tosihisa	9:9ca3db7ed7cb	1626	#endif
tosihisa	9:9ca3db7ed7cb	1627
tosihisa	9:9ca3db7ed7cb	1628	#if _USE_LFN /* LFN configuration */
tosihisa	9:9ca3db7ed7cb	1629	BYTE b, cf;
tosihisa	9:9ca3db7ed7cb	1630	WCHAR w, *lfn;
tosihisa	9:9ca3db7ed7cb	1631	UINT i, ni, si, di;
tosihisa	9:9ca3db7ed7cb	1632	const TCHAR *p;
tosihisa	9:9ca3db7ed7cb	1633
tosihisa	9:9ca3db7ed7cb	1634	/* Create LFN in Unicode */
tosihisa	9:9ca3db7ed7cb	1635	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
tosihisa	9:9ca3db7ed7cb	1636	lfn = dj->lfn;
tosihisa	9:9ca3db7ed7cb	1637	si = di = 0;
tosihisa	9:9ca3db7ed7cb	1638	for (;;) {
tosihisa	9:9ca3db7ed7cb	1639	w = p[si++]; /* Get a character */
tosihisa	9:9ca3db7ed7cb	1640	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
tosihisa	9:9ca3db7ed7cb	1641	if (di >= _MAX_LFN) /* Reject too long name */
tosihisa	9:9ca3db7ed7cb	1642	return FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	1643	#if !_LFN_UNICODE
tosihisa	9:9ca3db7ed7cb	1644	w &= 0xFF;
tosihisa	9:9ca3db7ed7cb	1645	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
tosihisa	9:9ca3db7ed7cb	1646	b = (BYTE)p[si++]; /* Get 2nd byte */
tosihisa	9:9ca3db7ed7cb	1647	if (!IsDBCS2(b))
tosihisa	9:9ca3db7ed7cb	1648	return FR_INVALID_NAME; /* Reject invalid sequence */
tosihisa	9:9ca3db7ed7cb	1649	w = (w << 8) + b; /* Create a DBC */
tosihisa	9:9ca3db7ed7cb	1650	}
tosihisa	9:9ca3db7ed7cb	1651	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
tosihisa	9:9ca3db7ed7cb	1652	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
tosihisa	9:9ca3db7ed7cb	1653	#endif
tosihisa	9:9ca3db7ed7cb	1654	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal chars for LFN */
tosihisa	9:9ca3db7ed7cb	1655	return FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	1656	lfn[di++] = w; /* Store the Unicode char */
tosihisa	9:9ca3db7ed7cb	1657	}
tosihisa	9:9ca3db7ed7cb	1658	path = &p[si]; / Return pointer to the next segment */
tosihisa	9:9ca3db7ed7cb	1659	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
tosihisa	9:9ca3db7ed7cb	1660	#if _FS_RPATH
tosihisa	9:9ca3db7ed7cb	1661	if ((di == 1 && lfn[di-1] == '.') \|\| /* Is this a dot entry? */
tosihisa	9:9ca3db7ed7cb	1662	(di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
tosihisa	9:9ca3db7ed7cb	1663	lfn[di] = 0;
tosihisa	9:9ca3db7ed7cb	1664	for (i = 0; i < 11; i++)
tosihisa	9:9ca3db7ed7cb	1665	dj->fn[i] = (i < di) ? '.' : ' ';
tosihisa	9:9ca3db7ed7cb	1666	dj->fn[i] = cf \| NS_DOT; /* This is a dot entry */
tosihisa	9:9ca3db7ed7cb	1667	return FR_OK;
tosihisa	9:9ca3db7ed7cb	1668	}
tosihisa	9:9ca3db7ed7cb	1669	#endif
tosihisa	9:9ca3db7ed7cb	1670	while (di) { /* Strip trailing spaces and dots */
tosihisa	9:9ca3db7ed7cb	1671	w = lfn[di-1];
tosihisa	9:9ca3db7ed7cb	1672	if (w != ' ' && w != '.') break;
tosihisa	9:9ca3db7ed7cb	1673	di--;
tosihisa	9:9ca3db7ed7cb	1674	}
tosihisa	9:9ca3db7ed7cb	1675	if (!di) return FR_INVALID_NAME; /* Reject nul string */
tosihisa	9:9ca3db7ed7cb	1676
tosihisa	9:9ca3db7ed7cb	1677	lfn[di] = 0; /* LFN is created */
tosihisa	9:9ca3db7ed7cb	1678
tosihisa	9:9ca3db7ed7cb	1679	/* Create SFN in directory form */
tosihisa	9:9ca3db7ed7cb	1680	mem_set(dj->fn, ' ', 11);
tosihisa	9:9ca3db7ed7cb	1681	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
tosihisa	9:9ca3db7ed7cb	1682	if (si) cf \|= NS_LOSS \| NS_LFN;
tosihisa	9:9ca3db7ed7cb	1683	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
tosihisa	9:9ca3db7ed7cb	1684
tosihisa	9:9ca3db7ed7cb	1685	b = i = 0; ni = 8;
tosihisa	9:9ca3db7ed7cb	1686	for (;;) {
tosihisa	9:9ca3db7ed7cb	1687	w = lfn[si++]; /* Get an LFN char */
tosihisa	9:9ca3db7ed7cb	1688	if (!w) break; /* Break on end of the LFN */
tosihisa	9:9ca3db7ed7cb	1689	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
tosihisa	9:9ca3db7ed7cb	1690	cf \|= NS_LOSS \| NS_LFN; continue;
tosihisa	9:9ca3db7ed7cb	1691	}
tosihisa	9:9ca3db7ed7cb	1692
tosihisa	9:9ca3db7ed7cb	1693	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
tosihisa	9:9ca3db7ed7cb	1694	if (ni == 11) { /* Long extension */
tosihisa	9:9ca3db7ed7cb	1695	cf \|= NS_LOSS \| NS_LFN; break;
tosihisa	9:9ca3db7ed7cb	1696	}
tosihisa	9:9ca3db7ed7cb	1697	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
tosihisa	9:9ca3db7ed7cb	1698	if (si > di) break; /* No extension */
tosihisa	9:9ca3db7ed7cb	1699	si = di; i = 8; ni = 11; /* Enter extension section */
tosihisa	9:9ca3db7ed7cb	1700	b <<= 2; continue;
tosihisa	9:9ca3db7ed7cb	1701	}
tosihisa	9:9ca3db7ed7cb	1702
tosihisa	9:9ca3db7ed7cb	1703	if (w >= 0x80) { /* Non ASCII char */
tosihisa	9:9ca3db7ed7cb	1704	#ifdef _EXCVT
tosihisa	9:9ca3db7ed7cb	1705	w = ff_convert(w, 0); /* Unicode -> OEM code */
tosihisa	9:9ca3db7ed7cb	1706	if (w) w = excvt[w - 0x80]; /* Convert extended char to upper (SBCS) */
tosihisa	9:9ca3db7ed7cb	1707	#else
tosihisa	9:9ca3db7ed7cb	1708	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
tosihisa	9:9ca3db7ed7cb	1709	#endif
tosihisa	9:9ca3db7ed7cb	1710	cf \|= NS_LFN; /* Force create LFN entry */
tosihisa	9:9ca3db7ed7cb	1711	}
tosihisa	9:9ca3db7ed7cb	1712
tosihisa	9:9ca3db7ed7cb	1713	if (_DF1S && w >= 0x100) { /* Double byte char (always false on SBCS cfg) */
tosihisa	9:9ca3db7ed7cb	1714	if (i >= ni - 1) {
tosihisa	9:9ca3db7ed7cb	1715	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
tosihisa	9:9ca3db7ed7cb	1716	}
tosihisa	9:9ca3db7ed7cb	1717	dj->fn[i++] = (BYTE)(w >> 8);
tosihisa	9:9ca3db7ed7cb	1718	} else { /* Single byte char */
tosihisa	9:9ca3db7ed7cb	1719	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal chars for SFN */
tosihisa	9:9ca3db7ed7cb	1720	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
tosihisa	9:9ca3db7ed7cb	1721	} else {
tosihisa	9:9ca3db7ed7cb	1722	if (IsUpper(w)) { /* ASCII large capital */
tosihisa	9:9ca3db7ed7cb	1723	b \|= 2;
tosihisa	9:9ca3db7ed7cb	1724	} else {
tosihisa	9:9ca3db7ed7cb	1725	if (IsLower(w)) { /* ASCII small capital */
tosihisa	9:9ca3db7ed7cb	1726	b \|= 1; w -= 0x20;
tosihisa	9:9ca3db7ed7cb	1727	}
tosihisa	9:9ca3db7ed7cb	1728	}
tosihisa	9:9ca3db7ed7cb	1729	}
tosihisa	9:9ca3db7ed7cb	1730	}
tosihisa	9:9ca3db7ed7cb	1731	dj->fn[i++] = (BYTE)w;
tosihisa	9:9ca3db7ed7cb	1732	}
tosihisa	9:9ca3db7ed7cb	1733
tosihisa	9:9ca3db7ed7cb	1734	if (dj->fn[0] == DDE) dj->fn[0] = NDDE; /* If the first char collides with deleted mark, replace it with 0x05 */
tosihisa	9:9ca3db7ed7cb	1735
tosihisa	9:9ca3db7ed7cb	1736	if (ni == 8) b <<= 2;
tosihisa	9:9ca3db7ed7cb	1737	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
tosihisa	9:9ca3db7ed7cb	1738	cf \|= NS_LFN;
tosihisa	9:9ca3db7ed7cb	1739	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */
tosihisa	9:9ca3db7ed7cb	1740	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
tosihisa	9:9ca3db7ed7cb	1741	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
tosihisa	9:9ca3db7ed7cb	1742	}
tosihisa	9:9ca3db7ed7cb	1743
tosihisa	9:9ca3db7ed7cb	1744	dj->fn[NS] = cf; /* SFN is created */
tosihisa	9:9ca3db7ed7cb	1745
tosihisa	9:9ca3db7ed7cb	1746	return FR_OK;
tosihisa	9:9ca3db7ed7cb	1747
tosihisa	9:9ca3db7ed7cb	1748
tosihisa	9:9ca3db7ed7cb	1749	#else /* Non-LFN configuration */
tosihisa	9:9ca3db7ed7cb	1750	BYTE b, c, d, *sfn;
tosihisa	9:9ca3db7ed7cb	1751	UINT ni, si, i;
tosihisa	9:9ca3db7ed7cb	1752	const char *p;
tosihisa	9:9ca3db7ed7cb	1753
tosihisa	9:9ca3db7ed7cb	1754	/* Create file name in directory form */
tosihisa	9:9ca3db7ed7cb	1755	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
tosihisa	9:9ca3db7ed7cb	1756	sfn = dj->fn;
tosihisa	9:9ca3db7ed7cb	1757	mem_set(sfn, ' ', 11);
tosihisa	9:9ca3db7ed7cb	1758	si = i = b = 0; ni = 8;
tosihisa	9:9ca3db7ed7cb	1759	#if _FS_RPATH
tosihisa	9:9ca3db7ed7cb	1760	if (p[si] == '.') { /* Is this a dot entry? */
tosihisa	9:9ca3db7ed7cb	1761	for (;;) {
tosihisa	9:9ca3db7ed7cb	1762	c = (BYTE)p[si++];
tosihisa	9:9ca3db7ed7cb	1763	if (c != '.' \|\| si >= 3) break;
tosihisa	9:9ca3db7ed7cb	1764	sfn[i++] = c;
tosihisa	9:9ca3db7ed7cb	1765	}
tosihisa	9:9ca3db7ed7cb	1766	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	1767	path = &p[si]; / Return pointer to the next segment */
tosihisa	9:9ca3db7ed7cb	1768	sfn[NS] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
tosihisa	9:9ca3db7ed7cb	1769	return FR_OK;
tosihisa	9:9ca3db7ed7cb	1770	}
tosihisa	9:9ca3db7ed7cb	1771	#endif
tosihisa	9:9ca3db7ed7cb	1772	for (;;) {
tosihisa	9:9ca3db7ed7cb	1773	c = (BYTE)p[si++];
tosihisa	9:9ca3db7ed7cb	1774	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
tosihisa	9:9ca3db7ed7cb	1775	if (c == '.' \|\| i >= ni) {
tosihisa	9:9ca3db7ed7cb	1776	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	1777	i = 8; ni = 11;
tosihisa	9:9ca3db7ed7cb	1778	b <<= 2; continue;
tosihisa	9:9ca3db7ed7cb	1779	}
tosihisa	9:9ca3db7ed7cb	1780	if (c >= 0x80) { /* Extended char? */
tosihisa	9:9ca3db7ed7cb	1781	b \|= 3; /* Eliminate NT flag */
tosihisa	9:9ca3db7ed7cb	1782	#ifdef _EXCVT
tosihisa	9:9ca3db7ed7cb	1783	c = excvt[c-0x80]; /* Upper conversion (SBCS) */
tosihisa	9:9ca3db7ed7cb	1784	#else
tosihisa	9:9ca3db7ed7cb	1785	#if !_DF1S /* ASCII only cfg */
tosihisa	9:9ca3db7ed7cb	1786	return FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	1787	#endif
tosihisa	9:9ca3db7ed7cb	1788	#endif
tosihisa	9:9ca3db7ed7cb	1789	}
tosihisa	9:9ca3db7ed7cb	1790	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
tosihisa	9:9ca3db7ed7cb	1791	d = (BYTE)p[si++]; /* Get 2nd byte */
tosihisa	9:9ca3db7ed7cb	1792	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
tosihisa	9:9ca3db7ed7cb	1793	return FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	1794	sfn[i++] = c;
tosihisa	9:9ca3db7ed7cb	1795	sfn[i++] = d;
tosihisa	9:9ca3db7ed7cb	1796	} else { /* Single byte code */
tosihisa	9:9ca3db7ed7cb	1797	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
tosihisa	9:9ca3db7ed7cb	1798	return FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	1799	if (IsUpper(c)) { /* ASCII large capital? */
tosihisa	9:9ca3db7ed7cb	1800	b \|= 2;
tosihisa	9:9ca3db7ed7cb	1801	} else {
tosihisa	9:9ca3db7ed7cb	1802	if (IsLower(c)) { /* ASCII small capital? */
tosihisa	9:9ca3db7ed7cb	1803	b \|= 1; c -= 0x20;
tosihisa	9:9ca3db7ed7cb	1804	}
tosihisa	9:9ca3db7ed7cb	1805	}
tosihisa	9:9ca3db7ed7cb	1806	sfn[i++] = c;
tosihisa	9:9ca3db7ed7cb	1807	}
tosihisa	9:9ca3db7ed7cb	1808	}
tosihisa	9:9ca3db7ed7cb	1809	path = &p[si]; / Return pointer to the next segment */
tosihisa	9:9ca3db7ed7cb	1810	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
tosihisa	9:9ca3db7ed7cb	1811
tosihisa	9:9ca3db7ed7cb	1812	if (!i) return FR_INVALID_NAME; /* Reject nul string */
tosihisa	9:9ca3db7ed7cb	1813	if (sfn[0] == DDE) sfn[0] = NDDE; /* When first char collides with DDE, replace it with 0x05 */
tosihisa	9:9ca3db7ed7cb	1814
tosihisa	9:9ca3db7ed7cb	1815	if (ni == 8) b <<= 2;
tosihisa	9:9ca3db7ed7cb	1816	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
tosihisa	9:9ca3db7ed7cb	1817	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
tosihisa	9:9ca3db7ed7cb	1818
tosihisa	9:9ca3db7ed7cb	1819	sfn[NS] = c; /* Store NT flag, File name is created */
tosihisa	9:9ca3db7ed7cb	1820
tosihisa	9:9ca3db7ed7cb	1821	return FR_OK;
tosihisa	9:9ca3db7ed7cb	1822	#endif
tosihisa	9:9ca3db7ed7cb	1823	}
tosihisa	9:9ca3db7ed7cb	1824
tosihisa	9:9ca3db7ed7cb	1825
tosihisa	9:9ca3db7ed7cb	1826
tosihisa	9:9ca3db7ed7cb	1827
tosihisa	9:9ca3db7ed7cb	1828	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1829	/* Get file information from directory entry */
tosihisa	9:9ca3db7ed7cb	1830	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1831	#if _FS_MINIMIZE <= 1
tosihisa	9:9ca3db7ed7cb	1832	static
tosihisa	9:9ca3db7ed7cb	1833	void get_fileinfo ( /* No return code */
tosihisa	9:9ca3db7ed7cb	1834	DIR_t dj, / Pointer to the directory object */
tosihisa	9:9ca3db7ed7cb	1835	FILINFO fno / Pointer to the file information to be filled */
tosihisa	9:9ca3db7ed7cb	1836	)
tosihisa	9:9ca3db7ed7cb	1837	{
tosihisa	9:9ca3db7ed7cb	1838	UINT i;
tosihisa	9:9ca3db7ed7cb	1839	BYTE nt, *dir;
tosihisa	9:9ca3db7ed7cb	1840	TCHAR *p, c;
tosihisa	9:9ca3db7ed7cb	1841	p = fno->fname;
tosihisa	9:9ca3db7ed7cb	1842
tosihisa	9:9ca3db7ed7cb	1843	if (dj->sect) {
tosihisa	9:9ca3db7ed7cb	1844	dir = dj->dir;
tosihisa	9:9ca3db7ed7cb	1845	nt = dir[DIR_NTres]; /* NT flag */
tosihisa	9:9ca3db7ed7cb	1846	for (i = 0; i < 8; i++) { /* Copy name body */
tosihisa	9:9ca3db7ed7cb	1847	c = dir[i];
tosihisa	9:9ca3db7ed7cb	1848	if (c == ' ') break;
tosihisa	9:9ca3db7ed7cb	1849	if (c == NDDE) c = (TCHAR)DDE;
tosihisa	9:9ca3db7ed7cb	1850	if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
tosihisa	9:9ca3db7ed7cb	1851	#if _LFN_UNICODE
tosihisa	9:9ca3db7ed7cb	1852	if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i+1]))
tosihisa	9:9ca3db7ed7cb	1853	c = (c << 8) \| dir[++i];
tosihisa	9:9ca3db7ed7cb	1854	c = ff_convert(c, 1);
tosihisa	9:9ca3db7ed7cb	1855	if (!c) c = '?';
tosihisa	9:9ca3db7ed7cb	1856	#endif
tosihisa	9:9ca3db7ed7cb	1857	*p++ = c;
tosihisa	9:9ca3db7ed7cb	1858	}
tosihisa	9:9ca3db7ed7cb	1859	if (dir[8] != ' ') { /* Copy name extension */
tosihisa	9:9ca3db7ed7cb	1860	*p++ = '.';
tosihisa	9:9ca3db7ed7cb	1861	for (i = 8; i < 11; i++) {
tosihisa	9:9ca3db7ed7cb	1862	c = dir[i];
tosihisa	9:9ca3db7ed7cb	1863	if (c == ' ') break;
tosihisa	9:9ca3db7ed7cb	1864	if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
tosihisa	9:9ca3db7ed7cb	1865	#if _LFN_UNICODE
tosihisa	9:9ca3db7ed7cb	1866	if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i+1]))
tosihisa	9:9ca3db7ed7cb	1867	c = (c << 8) \| dir[++i];
tosihisa	9:9ca3db7ed7cb	1868	c = ff_convert(c, 1);
tosihisa	9:9ca3db7ed7cb	1869	if (!c) c = '?';
tosihisa	9:9ca3db7ed7cb	1870	#endif
tosihisa	9:9ca3db7ed7cb	1871	*p++ = c;
tosihisa	9:9ca3db7ed7cb	1872	}
tosihisa	9:9ca3db7ed7cb	1873	}
tosihisa	9:9ca3db7ed7cb	1874	fno->fattrib = dir[DIR_Attr]; /* Attribute */
tosihisa	9:9ca3db7ed7cb	1875	fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
tosihisa	9:9ca3db7ed7cb	1876	fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
tosihisa	9:9ca3db7ed7cb	1877	fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
tosihisa	9:9ca3db7ed7cb	1878	}
tosihisa	9:9ca3db7ed7cb	1879	p = 0; / Terminate SFN str by a \0 */
tosihisa	9:9ca3db7ed7cb	1880
tosihisa	9:9ca3db7ed7cb	1881	#if _USE_LFN
tosihisa	9:9ca3db7ed7cb	1882	if (fno->lfname && fno->lfsize) {
tosihisa	9:9ca3db7ed7cb	1883	TCHAR *tp = fno->lfname;
tosihisa	9:9ca3db7ed7cb	1884	WCHAR w, *lfn;
tosihisa	9:9ca3db7ed7cb	1885
tosihisa	9:9ca3db7ed7cb	1886	i = 0;
tosihisa	9:9ca3db7ed7cb	1887	if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
tosihisa	9:9ca3db7ed7cb	1888	lfn = dj->lfn;
tosihisa	9:9ca3db7ed7cb	1889	while ((w = lfn++) != 0) { / Get an LFN char */
tosihisa	9:9ca3db7ed7cb	1890	#if !_LFN_UNICODE
tosihisa	9:9ca3db7ed7cb	1891	w = ff_convert(w, 0); /* Unicode -> OEM conversion */
tosihisa	9:9ca3db7ed7cb	1892	if (!w) { i = 0; break; } /* Could not convert, no LFN */
tosihisa	9:9ca3db7ed7cb	1893	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
tosihisa	9:9ca3db7ed7cb	1894	tp[i++] = (TCHAR)(w >> 8);
tosihisa	9:9ca3db7ed7cb	1895	#endif
tosihisa	9:9ca3db7ed7cb	1896	if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overflow, no LFN */
tosihisa	9:9ca3db7ed7cb	1897	tp[i++] = (TCHAR)w;
tosihisa	9:9ca3db7ed7cb	1898	}
tosihisa	9:9ca3db7ed7cb	1899
tosihisa	9:9ca3db7ed7cb	1900	}
tosihisa	9:9ca3db7ed7cb	1901	tp[i] = 0; /* Terminate the LFN str by a \0 */
tosihisa	9:9ca3db7ed7cb	1902	}
tosihisa	9:9ca3db7ed7cb	1903	#endif
tosihisa	9:9ca3db7ed7cb	1904	}
tosihisa	9:9ca3db7ed7cb	1905	#endif /* _FS_MINIMIZE <= 1 */
tosihisa	9:9ca3db7ed7cb	1906
tosihisa	9:9ca3db7ed7cb	1907
tosihisa	9:9ca3db7ed7cb	1908
tosihisa	9:9ca3db7ed7cb	1909
tosihisa	9:9ca3db7ed7cb	1910	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1911	/* Follow a file path */
tosihisa	9:9ca3db7ed7cb	1912	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1913
tosihisa	9:9ca3db7ed7cb	1914	static
tosihisa	9:9ca3db7ed7cb	1915	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
tosihisa	9:9ca3db7ed7cb	1916	DIR_t dj, / Directory object to return last directory and found object */
tosihisa	9:9ca3db7ed7cb	1917	const TCHAR path / Full-path string to find a file or directory */
tosihisa	9:9ca3db7ed7cb	1918	)
tosihisa	9:9ca3db7ed7cb	1919	{
tosihisa	9:9ca3db7ed7cb	1920	FRESULT res;
tosihisa	9:9ca3db7ed7cb	1921	BYTE *dir, ns;
tosihisa	9:9ca3db7ed7cb	1922
tosihisa	9:9ca3db7ed7cb	1923
tosihisa	9:9ca3db7ed7cb	1924	#if _FS_RPATH
tosihisa	9:9ca3db7ed7cb	1925	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
tosihisa	9:9ca3db7ed7cb	1926	path++; dj->sclust = 0; /* Strip it and start from the root dir */
tosihisa	9:9ca3db7ed7cb	1927	} else { /* No heading separator */
tosihisa	9:9ca3db7ed7cb	1928	dj->sclust = dj->fs->cdir; /* Start from the current dir */
tosihisa	9:9ca3db7ed7cb	1929	}
tosihisa	9:9ca3db7ed7cb	1930	#else
tosihisa	9:9ca3db7ed7cb	1931	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
tosihisa	9:9ca3db7ed7cb	1932	path++;
tosihisa	9:9ca3db7ed7cb	1933	dj->sclust = 0; /* Start from the root dir */
tosihisa	9:9ca3db7ed7cb	1934	#endif
tosihisa	9:9ca3db7ed7cb	1935
tosihisa	9:9ca3db7ed7cb	1936	if ((UINT)path < ' ') { / Nul path means the start directory itself */
tosihisa	9:9ca3db7ed7cb	1937	res = dir_sdi(dj, 0);
tosihisa	9:9ca3db7ed7cb	1938	dj->dir = 0;
tosihisa	9:9ca3db7ed7cb	1939
tosihisa	9:9ca3db7ed7cb	1940	} else { /* Follow path */
tosihisa	9:9ca3db7ed7cb	1941	for (;;) {
tosihisa	9:9ca3db7ed7cb	1942	res = create_name(dj, &path); /* Get a segment */
tosihisa	9:9ca3db7ed7cb	1943	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	1944	res = dir_find(dj); /* Find it */
tosihisa	9:9ca3db7ed7cb	1945	ns = *(dj->fn+NS);
tosihisa	9:9ca3db7ed7cb	1946	if (res != FR_OK) { /* Failed to find the object */
tosihisa	9:9ca3db7ed7cb	1947	if (res != FR_NO_FILE) break; /* Abort if any hard error occured */
tosihisa	9:9ca3db7ed7cb	1948	/* Object not found */
tosihisa	9:9ca3db7ed7cb	1949	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exit */
tosihisa	9:9ca3db7ed7cb	1950	dj->sclust = 0; dj->dir = 0; /* It is the root dir */
tosihisa	9:9ca3db7ed7cb	1951	res = FR_OK;
tosihisa	9:9ca3db7ed7cb	1952	if (!(ns & NS_LAST)) continue;
tosihisa	9:9ca3db7ed7cb	1953	} else { /* Could not find the object */
tosihisa	9:9ca3db7ed7cb	1954	if (!(ns & NS_LAST)) res = FR_NO_PATH;
tosihisa	9:9ca3db7ed7cb	1955	}
tosihisa	9:9ca3db7ed7cb	1956	break;
tosihisa	9:9ca3db7ed7cb	1957	}
tosihisa	9:9ca3db7ed7cb	1958	if (ns & NS_LAST) break; /* Last segment match. Function completed. */
tosihisa	9:9ca3db7ed7cb	1959	dir = dj->dir; /* There is next segment. Follow the sub directory */
tosihisa	9:9ca3db7ed7cb	1960	if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
tosihisa	9:9ca3db7ed7cb	1961	res = FR_NO_PATH; break;
tosihisa	9:9ca3db7ed7cb	1962	}
tosihisa	9:9ca3db7ed7cb	1963	dj->sclust = LD_CLUST(dir);
tosihisa	9:9ca3db7ed7cb	1964	}
tosihisa	9:9ca3db7ed7cb	1965	}
tosihisa	9:9ca3db7ed7cb	1966
tosihisa	9:9ca3db7ed7cb	1967	return res;
tosihisa	9:9ca3db7ed7cb	1968	}
tosihisa	9:9ca3db7ed7cb	1969
tosihisa	9:9ca3db7ed7cb	1970
tosihisa	9:9ca3db7ed7cb	1971
tosihisa	9:9ca3db7ed7cb	1972
tosihisa	9:9ca3db7ed7cb	1973	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1974	/* Load boot record and check if it is an FAT boot record */
tosihisa	9:9ca3db7ed7cb	1975	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	1976
tosihisa	9:9ca3db7ed7cb	1977	static
tosihisa	9:9ca3db7ed7cb	1978	BYTE check_fs ( /* 0:The FAT BR, 1:Valid BR but not an FAT, 2:Not a BR, 3:Disk error */
tosihisa	9:9ca3db7ed7cb	1979	FATFS fs, / File system object */
tosihisa	9:9ca3db7ed7cb	1980	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
tosihisa	9:9ca3db7ed7cb	1981	)
tosihisa	9:9ca3db7ed7cb	1982	{
tosihisa	9:9ca3db7ed7cb	1983	if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK) /* Load boot record */
tosihisa	9:9ca3db7ed7cb	1984	return 3;
tosihisa	9:9ca3db7ed7cb	1985	if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
tosihisa	9:9ca3db7ed7cb	1986	return 2;
tosihisa	9:9ca3db7ed7cb	1987
tosihisa	9:9ca3db7ed7cb	1988	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
tosihisa	9:9ca3db7ed7cb	1989	return 0;
tosihisa	9:9ca3db7ed7cb	1990	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
tosihisa	9:9ca3db7ed7cb	1991	return 0;
tosihisa	9:9ca3db7ed7cb	1992
tosihisa	9:9ca3db7ed7cb	1993	return 1;
tosihisa	9:9ca3db7ed7cb	1994	}
tosihisa	9:9ca3db7ed7cb	1995
tosihisa	9:9ca3db7ed7cb	1996
tosihisa	9:9ca3db7ed7cb	1997
tosihisa	9:9ca3db7ed7cb	1998
tosihisa	9:9ca3db7ed7cb	1999	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2000	/* Check if the file system object is valid or not */
tosihisa	9:9ca3db7ed7cb	2001	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2002
tosihisa	9:9ca3db7ed7cb	2003	static
tosihisa	9:9ca3db7ed7cb	2004	FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occurred */
tosihisa	9:9ca3db7ed7cb	2005	const TCHAR *path, / Pointer to pointer to the path name (drive number) */
tosihisa	9:9ca3db7ed7cb	2006	FATFS *rfs, / Pointer to pointer to the found file system object */
tosihisa	9:9ca3db7ed7cb	2007	BYTE chk_wp /* !=0: Check media write protection for write access */
tosihisa	9:9ca3db7ed7cb	2008	)
tosihisa	9:9ca3db7ed7cb	2009	{
tosihisa	9:9ca3db7ed7cb	2010	BYTE fmt, b, *tbl;
tosihisa	9:9ca3db7ed7cb	2011	UINT vol;
tosihisa	9:9ca3db7ed7cb	2012	DSTATUS stat;
tosihisa	9:9ca3db7ed7cb	2013	DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
tosihisa	9:9ca3db7ed7cb	2014	WORD nrsv;
tosihisa	9:9ca3db7ed7cb	2015	const TCHAR p = path;
tosihisa	9:9ca3db7ed7cb	2016	FATFS *fs;
tosihisa	9:9ca3db7ed7cb	2017
tosihisa	9:9ca3db7ed7cb	2018	/* Get logical drive number from the path name */
tosihisa	9:9ca3db7ed7cb	2019	vol = p[0] - '0'; /* Is there a drive number? */
tosihisa	9:9ca3db7ed7cb	2020	if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */
tosihisa	9:9ca3db7ed7cb	2021	p += 2; path = p; / Return pointer to the path name */
tosihisa	9:9ca3db7ed7cb	2022	} else { /* No drive number is given */
tosihisa	9:9ca3db7ed7cb	2023	#if _FS_RPATH
tosihisa	9:9ca3db7ed7cb	2024	vol = CurrVol; /* Use current drive */
tosihisa	9:9ca3db7ed7cb	2025	#else
tosihisa	9:9ca3db7ed7cb	2026	vol = 0; /* Use drive 0 */
tosihisa	9:9ca3db7ed7cb	2027	#endif
tosihisa	9:9ca3db7ed7cb	2028	}
tosihisa	9:9ca3db7ed7cb	2029
tosihisa	9:9ca3db7ed7cb	2030	/* Check if the logical drive is valid or not */
tosihisa	9:9ca3db7ed7cb	2031	if (vol >= _VOLUMES) /* Is the drive number valid? */
tosihisa	9:9ca3db7ed7cb	2032	return FR_INVALID_DRIVE;
tosihisa	9:9ca3db7ed7cb	2033	rfs = fs = FatFs[vol]; / Return pointer to the corresponding file system object */
tosihisa	9:9ca3db7ed7cb	2034	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
tosihisa	9:9ca3db7ed7cb	2035
tosihisa	9:9ca3db7ed7cb	2036	ENTER_FF(fs); /* Lock file system */
tosihisa	9:9ca3db7ed7cb	2037
tosihisa	9:9ca3db7ed7cb	2038	if (fs->fs_type) { /* If the logical drive has been mounted */
tosihisa	9:9ca3db7ed7cb	2039	stat = disk_status(fs->drv);
tosihisa	9:9ca3db7ed7cb	2040	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */
tosihisa	9:9ca3db7ed7cb	2041	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	2042	if (chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */
tosihisa	9:9ca3db7ed7cb	2043	return FR_WRITE_PROTECTED;
tosihisa	9:9ca3db7ed7cb	2044	#endif
tosihisa	9:9ca3db7ed7cb	2045	return FR_OK; /* The file system object is valid */
tosihisa	9:9ca3db7ed7cb	2046	}
tosihisa	9:9ca3db7ed7cb	2047	}
tosihisa	9:9ca3db7ed7cb	2048
tosihisa	9:9ca3db7ed7cb	2049	/* The logical drive must be mounted. */
tosihisa	9:9ca3db7ed7cb	2050	/* Following code attempts to mount a volume. (analyze BPB and initialize the fs object) */
tosihisa	9:9ca3db7ed7cb	2051
tosihisa	9:9ca3db7ed7cb	2052	fs->fs_type = 0; /* Clear the file system object */
tosihisa	9:9ca3db7ed7cb	2053	fs->drv = (BYTE)LD2PD(vol); /* Bind the logical drive and a physical drive */
tosihisa	9:9ca3db7ed7cb	2054	stat = disk_initialize(fs->drv); /* Initialize low level disk I/O layer */
tosihisa	9:9ca3db7ed7cb	2055	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
tosihisa	9:9ca3db7ed7cb	2056	return FR_NOT_READY; /* Failed to initialize due to no media or hard error */
tosihisa	9:9ca3db7ed7cb	2057	#if _MAX_SS != 512 /* Get disk sector size (variable sector size cfg only) */
tosihisa	9:9ca3db7ed7cb	2058	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
tosihisa	9:9ca3db7ed7cb	2059	return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	2060	#endif
tosihisa	9:9ca3db7ed7cb	2061	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	2062	if (chk_wp && (stat & STA_PROTECT)) /* Check disk write protection if needed */
tosihisa	9:9ca3db7ed7cb	2063	return FR_WRITE_PROTECTED;
tosihisa	9:9ca3db7ed7cb	2064	#endif
tosihisa	9:9ca3db7ed7cb	2065	/* Search FAT partition on the drive. Supports only generic partitionings, FDISK and SFD. */
tosihisa	9:9ca3db7ed7cb	2066	fmt = check_fs(fs, bsect = 0); /* Check sector 0 if it is a VBR */
tosihisa	9:9ca3db7ed7cb	2067	if (fmt == 1) { /* Not an FAT-VBR, the disk may be partitioned */
tosihisa	9:9ca3db7ed7cb	2068	/* Check the partition listed in top of the partition table */
tosihisa	9:9ca3db7ed7cb	2069	tbl = &fs->win[MBR_Table + LD2PT(vol) * SZ_PTE];/* Partition table */
tosihisa	9:9ca3db7ed7cb	2070	if (tbl[4]) { /* Is the partition existing? */
tosihisa	9:9ca3db7ed7cb	2071	bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
tosihisa	9:9ca3db7ed7cb	2072	fmt = check_fs(fs, bsect); /* Check the partition */
tosihisa	9:9ca3db7ed7cb	2073	}
tosihisa	9:9ca3db7ed7cb	2074	}
tosihisa	9:9ca3db7ed7cb	2075	if (fmt == 3) return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	2076	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
tosihisa	9:9ca3db7ed7cb	2077
tosihisa	9:9ca3db7ed7cb	2078	/* Following code initializes the file system object */
tosihisa	9:9ca3db7ed7cb	2079
tosihisa	9:9ca3db7ed7cb	2080	if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
tosihisa	9:9ca3db7ed7cb	2081	return FR_NO_FILESYSTEM;
tosihisa	9:9ca3db7ed7cb	2082
tosihisa	9:9ca3db7ed7cb	2083	fasize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */
tosihisa	9:9ca3db7ed7cb	2084	if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32);
tosihisa	9:9ca3db7ed7cb	2085	fs->fsize = fasize;
tosihisa	9:9ca3db7ed7cb	2086
tosihisa	9:9ca3db7ed7cb	2087	fs->n_fats = b = fs->win[BPB_NumFATs]; /* Number of FAT copies */
tosihisa	9:9ca3db7ed7cb	2088	if (b != 1 && b != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
tosihisa	9:9ca3db7ed7cb	2089	fasize = b; / Number of sectors for FAT area */
tosihisa	9:9ca3db7ed7cb	2090
tosihisa	9:9ca3db7ed7cb	2091	fs->csize = b = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
tosihisa	9:9ca3db7ed7cb	2092	if (!b \|\| (b & (b - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
tosihisa	9:9ca3db7ed7cb	2093
tosihisa	9:9ca3db7ed7cb	2094	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Number of root directory entries */
tosihisa	9:9ca3db7ed7cb	2095	if (fs->n_rootdir % (SS(fs) / SZ_DIR)) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be sector aligned) */
tosihisa	9:9ca3db7ed7cb	2096
tosihisa	9:9ca3db7ed7cb	2097	tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */
tosihisa	9:9ca3db7ed7cb	2098	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
tosihisa	9:9ca3db7ed7cb	2099
tosihisa	9:9ca3db7ed7cb	2100	nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt); /* Number of reserved sectors */
tosihisa	9:9ca3db7ed7cb	2101	if (!nrsv) return FR_NO_FILESYSTEM; /* (BPB_RsvdSecCnt must not be 0) */
tosihisa	9:9ca3db7ed7cb	2102
tosihisa	9:9ca3db7ed7cb	2103	/* Determine the FAT sub type */
tosihisa	9:9ca3db7ed7cb	2104	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR); /* RSV+FAT+DIR */
tosihisa	9:9ca3db7ed7cb	2105	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
tosihisa	9:9ca3db7ed7cb	2106	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
tosihisa	9:9ca3db7ed7cb	2107	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
tosihisa	9:9ca3db7ed7cb	2108	fmt = FS_FAT12;
tosihisa	9:9ca3db7ed7cb	2109	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
tosihisa	9:9ca3db7ed7cb	2110	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
tosihisa	9:9ca3db7ed7cb	2111
tosihisa	9:9ca3db7ed7cb	2112	/* Boundaries and Limits */
tosihisa	9:9ca3db7ed7cb	2113	fs->n_fatent = nclst + 2; /* Number of FAT entries */
tosihisa	9:9ca3db7ed7cb	2114	fs->database = bsect + sysect; /* Data start sector */
tosihisa	9:9ca3db7ed7cb	2115	fs->fatbase = bsect + nrsv; /* FAT start sector */
tosihisa	9:9ca3db7ed7cb	2116	if (fmt == FS_FAT32) {
tosihisa	9:9ca3db7ed7cb	2117	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
tosihisa	9:9ca3db7ed7cb	2118	fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
tosihisa	9:9ca3db7ed7cb	2119	szbfat = fs->n_fatent * 4; /* (Required FAT size) */
tosihisa	9:9ca3db7ed7cb	2120	} else {
tosihisa	9:9ca3db7ed7cb	2121	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
tosihisa	9:9ca3db7ed7cb	2122	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
tosihisa	9:9ca3db7ed7cb	2123	szbfat = (fmt == FS_FAT16) ? /* (Required FAT size) */
tosihisa	9:9ca3db7ed7cb	2124	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
tosihisa	9:9ca3db7ed7cb	2125	}
tosihisa	9:9ca3db7ed7cb	2126	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than required) */
tosihisa	9:9ca3db7ed7cb	2127	return FR_NO_FILESYSTEM;
tosihisa	9:9ca3db7ed7cb	2128
tosihisa	9:9ca3db7ed7cb	2129	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	2130	/* Initialize cluster allocation information */
tosihisa	9:9ca3db7ed7cb	2131	fs->free_clust = 0xFFFFFFFF;
tosihisa	9:9ca3db7ed7cb	2132	fs->last_clust = 0;
tosihisa	9:9ca3db7ed7cb	2133
tosihisa	9:9ca3db7ed7cb	2134	/* Get fsinfo if available */
tosihisa	9:9ca3db7ed7cb	2135	if (fmt == FS_FAT32) {
tosihisa	9:9ca3db7ed7cb	2136	fs->fsi_flag = 0;
tosihisa	9:9ca3db7ed7cb	2137	fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
tosihisa	9:9ca3db7ed7cb	2138	if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK &&
tosihisa	9:9ca3db7ed7cb	2139	LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
tosihisa	9:9ca3db7ed7cb	2140	LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
tosihisa	9:9ca3db7ed7cb	2141	LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
tosihisa	9:9ca3db7ed7cb	2142	fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
tosihisa	9:9ca3db7ed7cb	2143	fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
tosihisa	9:9ca3db7ed7cb	2144	}
tosihisa	9:9ca3db7ed7cb	2145	}
tosihisa	9:9ca3db7ed7cb	2146	#endif
tosihisa	9:9ca3db7ed7cb	2147	fs->fs_type = fmt; /* FAT sub-type */
tosihisa	9:9ca3db7ed7cb	2148	fs->id = ++Fsid; /* File system mount ID */
tosihisa	9:9ca3db7ed7cb	2149	fs->winsect = 0; /* Invalidate sector cache */
tosihisa	9:9ca3db7ed7cb	2150	fs->wflag = 0;
tosihisa	9:9ca3db7ed7cb	2151	#if _FS_RPATH
tosihisa	9:9ca3db7ed7cb	2152	fs->cdir = 0; /* Current directory (root dir) */
tosihisa	9:9ca3db7ed7cb	2153	#endif
tosihisa	9:9ca3db7ed7cb	2154	#if _FS_SHARE /* Clear file lock semaphores */
tosihisa	9:9ca3db7ed7cb	2155	clear_lock(fs);
tosihisa	9:9ca3db7ed7cb	2156	#endif
tosihisa	9:9ca3db7ed7cb	2157
tosihisa	9:9ca3db7ed7cb	2158	return FR_OK;
tosihisa	9:9ca3db7ed7cb	2159	}
tosihisa	9:9ca3db7ed7cb	2160
tosihisa	9:9ca3db7ed7cb	2161
tosihisa	9:9ca3db7ed7cb	2162
tosihisa	9:9ca3db7ed7cb	2163
tosihisa	9:9ca3db7ed7cb	2164	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2165	/* Check if the file/dir object is valid or not */
tosihisa	9:9ca3db7ed7cb	2166	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2167
tosihisa	9:9ca3db7ed7cb	2168	static
tosihisa	9:9ca3db7ed7cb	2169	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
tosihisa	9:9ca3db7ed7cb	2170	FATFS fs, / Pointer to the file system object */
tosihisa	9:9ca3db7ed7cb	2171	WORD id /* Member id of the target object to be checked */
tosihisa	9:9ca3db7ed7cb	2172	)
tosihisa	9:9ca3db7ed7cb	2173	{
tosihisa	9:9ca3db7ed7cb	2174	if (!fs \|\| !fs->fs_type \|\| fs->id != id)
tosihisa	9:9ca3db7ed7cb	2175	return FR_INVALID_OBJECT;
tosihisa	9:9ca3db7ed7cb	2176
tosihisa	9:9ca3db7ed7cb	2177	ENTER_FF(fs); /* Lock file system */
tosihisa	9:9ca3db7ed7cb	2178
tosihisa	9:9ca3db7ed7cb	2179	if (disk_status(fs->drv) & STA_NOINIT)
tosihisa	9:9ca3db7ed7cb	2180	return FR_NOT_READY;
tosihisa	9:9ca3db7ed7cb	2181
tosihisa	9:9ca3db7ed7cb	2182	return FR_OK;
tosihisa	9:9ca3db7ed7cb	2183	}
tosihisa	9:9ca3db7ed7cb	2184
tosihisa	9:9ca3db7ed7cb	2185
tosihisa	9:9ca3db7ed7cb	2186
tosihisa	9:9ca3db7ed7cb	2187
tosihisa	9:9ca3db7ed7cb	2188	/*--------------------------------------------------------------------------
tosihisa	9:9ca3db7ed7cb	2189
tosihisa	9:9ca3db7ed7cb	2190	Public Functions
tosihisa	9:9ca3db7ed7cb	2191
tosihisa	9:9ca3db7ed7cb	2192	--------------------------------------------------------------------------*/
tosihisa	9:9ca3db7ed7cb	2193
tosihisa	9:9ca3db7ed7cb	2194
tosihisa	9:9ca3db7ed7cb	2195
tosihisa	9:9ca3db7ed7cb	2196	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2197	/* Mount/Unmount a Logical Drive */
tosihisa	9:9ca3db7ed7cb	2198	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2199
tosihisa	9:9ca3db7ed7cb	2200	FRESULT f_mount (
tosihisa	9:9ca3db7ed7cb	2201	BYTE vol, /* Logical drive number to be mounted/unmounted */
tosihisa	9:9ca3db7ed7cb	2202	FATFS fs / Pointer to new file system object (NULL for unmount)*/
tosihisa	9:9ca3db7ed7cb	2203	)
tosihisa	9:9ca3db7ed7cb	2204	{
tosihisa	9:9ca3db7ed7cb	2205	FATFS *rfs;
tosihisa	9:9ca3db7ed7cb	2206
tosihisa	9:9ca3db7ed7cb	2207
tosihisa	9:9ca3db7ed7cb	2208	if (vol >= _VOLUMES) /* Check if the drive number is valid */
tosihisa	9:9ca3db7ed7cb	2209	return FR_INVALID_DRIVE;
tosihisa	9:9ca3db7ed7cb	2210	rfs = FatFs[vol]; /* Get current fs object */
tosihisa	9:9ca3db7ed7cb	2211
tosihisa	9:9ca3db7ed7cb	2212	if (rfs) {
tosihisa	9:9ca3db7ed7cb	2213	#if _FS_SHARE
tosihisa	9:9ca3db7ed7cb	2214	clear_lock(rfs);
tosihisa	9:9ca3db7ed7cb	2215	#endif
tosihisa	9:9ca3db7ed7cb	2216	#if _FS_REENTRANT /* Discard sync object of the current volume */
tosihisa	9:9ca3db7ed7cb	2217	if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	2218	#endif
tosihisa	9:9ca3db7ed7cb	2219	rfs->fs_type = 0; /* Clear old fs object */
tosihisa	9:9ca3db7ed7cb	2220	}
tosihisa	9:9ca3db7ed7cb	2221
tosihisa	9:9ca3db7ed7cb	2222	if (fs) {
tosihisa	9:9ca3db7ed7cb	2223	fs->fs_type = 0; /* Clear new fs object */
tosihisa	9:9ca3db7ed7cb	2224	#if _FS_REENTRANT /* Create sync object for the new volume */
tosihisa	9:9ca3db7ed7cb	2225	if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	2226	#endif
tosihisa	9:9ca3db7ed7cb	2227	}
tosihisa	9:9ca3db7ed7cb	2228	FatFs[vol] = fs; /* Register new fs object */
tosihisa	9:9ca3db7ed7cb	2229
tosihisa	9:9ca3db7ed7cb	2230	return FR_OK;
tosihisa	9:9ca3db7ed7cb	2231	}
tosihisa	9:9ca3db7ed7cb	2232
tosihisa	9:9ca3db7ed7cb	2233
tosihisa	9:9ca3db7ed7cb	2234
tosihisa	9:9ca3db7ed7cb	2235
tosihisa	9:9ca3db7ed7cb	2236	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2237	/* Open or Create a File */
tosihisa	9:9ca3db7ed7cb	2238	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2239
tosihisa	9:9ca3db7ed7cb	2240	FRESULT f_open (
tosihisa	9:9ca3db7ed7cb	2241	FIL_t fp, / Pointer to the blank file object */
tosihisa	9:9ca3db7ed7cb	2242	const TCHAR path, / Pointer to the file name */
tosihisa	9:9ca3db7ed7cb	2243	BYTE mode /* Access mode and file open mode flags */
tosihisa	9:9ca3db7ed7cb	2244	)
tosihisa	9:9ca3db7ed7cb	2245	{
tosihisa	9:9ca3db7ed7cb	2246	FRESULT res;
tosihisa	9:9ca3db7ed7cb	2247	DIR_t dj;
tosihisa	9:9ca3db7ed7cb	2248	BYTE *dir;
tosihisa	9:9ca3db7ed7cb	2249	DEF_NAMEBUF;
tosihisa	9:9ca3db7ed7cb	2250
tosihisa	9:9ca3db7ed7cb	2251
tosihisa	9:9ca3db7ed7cb	2252	fp->fs = 0; /* Clear file object */
tosihisa	9:9ca3db7ed7cb	2253
tosihisa	9:9ca3db7ed7cb	2254	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	2255	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
tosihisa	9:9ca3db7ed7cb	2256	res = chk_mounted(&path, &dj.fs, (BYTE)(mode & ~FA_READ));
tosihisa	9:9ca3db7ed7cb	2257	#else
tosihisa	9:9ca3db7ed7cb	2258	mode &= FA_READ;
tosihisa	9:9ca3db7ed7cb	2259	res = chk_mounted(&path, &dj.fs, 0);
tosihisa	9:9ca3db7ed7cb	2260	#endif
tosihisa	9:9ca3db7ed7cb	2261	INIT_BUF(dj);
tosihisa	9:9ca3db7ed7cb	2262	if (res == FR_OK)
tosihisa	9:9ca3db7ed7cb	2263	res = follow_path(&dj, path); /* Follow the file path */
tosihisa	9:9ca3db7ed7cb	2264	dir = dj.dir;
tosihisa	9:9ca3db7ed7cb	2265
tosihisa	9:9ca3db7ed7cb	2266	#if !_FS_READONLY /* R/W configuration */
tosihisa	9:9ca3db7ed7cb	2267	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	2268	if (!dir) /* Current dir itself */
tosihisa	9:9ca3db7ed7cb	2269	res = FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	2270	#if _FS_SHARE
tosihisa	9:9ca3db7ed7cb	2271	else
tosihisa	9:9ca3db7ed7cb	2272	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
tosihisa	9:9ca3db7ed7cb	2273	#endif
tosihisa	9:9ca3db7ed7cb	2274	}
tosihisa	9:9ca3db7ed7cb	2275	/* Create or Open a file */
tosihisa	9:9ca3db7ed7cb	2276	if (mode & (FA_CREATE_ALWAYS\|FA_OPEN_ALWAYS\|FA_CREATE_NEW)) {
tosihisa	9:9ca3db7ed7cb	2277	DWORD dw, cl;
tosihisa	9:9ca3db7ed7cb	2278
tosihisa	9:9ca3db7ed7cb	2279	if (res != FR_OK) { /* No file, create new */
tosihisa	9:9ca3db7ed7cb	2280	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
tosihisa	9:9ca3db7ed7cb	2281	#if _FS_SHARE
tosihisa	9:9ca3db7ed7cb	2282	res = enq_lock(dj.fs) ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
tosihisa	9:9ca3db7ed7cb	2283	#else
tosihisa	9:9ca3db7ed7cb	2284	res = dir_register(&dj);
tosihisa	9:9ca3db7ed7cb	2285	#endif
tosihisa	9:9ca3db7ed7cb	2286	mode \|= FA_CREATE_ALWAYS; /* File is created */
tosihisa	9:9ca3db7ed7cb	2287	dir = dj.dir; /* New entry */
tosihisa	9:9ca3db7ed7cb	2288	}
tosihisa	9:9ca3db7ed7cb	2289	else { /* Any object is already existing */
tosihisa	9:9ca3db7ed7cb	2290	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */
tosihisa	9:9ca3db7ed7cb	2291	res = FR_DENIED;
tosihisa	9:9ca3db7ed7cb	2292	} else {
tosihisa	9:9ca3db7ed7cb	2293	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
tosihisa	9:9ca3db7ed7cb	2294	res = FR_EXIST;
tosihisa	9:9ca3db7ed7cb	2295	}
tosihisa	9:9ca3db7ed7cb	2296	}
tosihisa	9:9ca3db7ed7cb	2297	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
tosihisa	9:9ca3db7ed7cb	2298	dw = get_fattime(); /* Created time */
tosihisa	9:9ca3db7ed7cb	2299	ST_DWORD(dir+DIR_CrtTime, dw);
tosihisa	9:9ca3db7ed7cb	2300	dir[DIR_Attr] = 0; /* Reset attribute */
tosihisa	9:9ca3db7ed7cb	2301	ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
tosihisa	9:9ca3db7ed7cb	2302	cl = LD_CLUST(dir); /* Get start cluster */
tosihisa	9:9ca3db7ed7cb	2303	ST_CLUST(dir, 0); /* cluster = 0 */
tosihisa	9:9ca3db7ed7cb	2304	dj.fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	2305	if (cl) { /* Remove the cluster chain if exist */
tosihisa	9:9ca3db7ed7cb	2306	dw = dj.fs->winsect;
tosihisa	9:9ca3db7ed7cb	2307	res = remove_chain(dj.fs, cl);
tosihisa	9:9ca3db7ed7cb	2308	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	2309	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
tosihisa	9:9ca3db7ed7cb	2310	res = move_window(dj.fs, dw);
tosihisa	9:9ca3db7ed7cb	2311	}
tosihisa	9:9ca3db7ed7cb	2312	}
tosihisa	9:9ca3db7ed7cb	2313	}
tosihisa	9:9ca3db7ed7cb	2314	}
tosihisa	9:9ca3db7ed7cb	2315	else { /* Open an existing file */
tosihisa	9:9ca3db7ed7cb	2316	if (res == FR_OK) { /* Follow succeeded */
tosihisa	9:9ca3db7ed7cb	2317	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
tosihisa	9:9ca3db7ed7cb	2318	res = FR_NO_FILE;
tosihisa	9:9ca3db7ed7cb	2319	} else {
tosihisa	9:9ca3db7ed7cb	2320	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
tosihisa	9:9ca3db7ed7cb	2321	res = FR_DENIED;
tosihisa	9:9ca3db7ed7cb	2322	}
tosihisa	9:9ca3db7ed7cb	2323	}
tosihisa	9:9ca3db7ed7cb	2324	}
tosihisa	9:9ca3db7ed7cb	2325	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	2326	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
tosihisa	9:9ca3db7ed7cb	2327	mode \|= FA__WRITTEN;
tosihisa	9:9ca3db7ed7cb	2328	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
tosihisa	9:9ca3db7ed7cb	2329	fp->dir_ptr = dir;
tosihisa	9:9ca3db7ed7cb	2330	#if _FS_SHARE
tosihisa	9:9ca3db7ed7cb	2331	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
tosihisa	9:9ca3db7ed7cb	2332	if (!fp->lockid) res = FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	2333	#endif
tosihisa	9:9ca3db7ed7cb	2334	}
tosihisa	9:9ca3db7ed7cb	2335
tosihisa	9:9ca3db7ed7cb	2336	#else /* R/O configuration */
tosihisa	9:9ca3db7ed7cb	2337	if (res == FR_OK) { /* Follow succeeded */
tosihisa	9:9ca3db7ed7cb	2338	if (!dir) { /* Current dir itself */
tosihisa	9:9ca3db7ed7cb	2339	res = FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	2340	} else {
tosihisa	9:9ca3db7ed7cb	2341	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
tosihisa	9:9ca3db7ed7cb	2342	res = FR_NO_FILE;
tosihisa	9:9ca3db7ed7cb	2343	}
tosihisa	9:9ca3db7ed7cb	2344	}
tosihisa	9:9ca3db7ed7cb	2345	#endif
tosihisa	9:9ca3db7ed7cb	2346	FREE_BUF();
tosihisa	9:9ca3db7ed7cb	2347
tosihisa	9:9ca3db7ed7cb	2348	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	2349	fp->flag = mode; /* File access mode */
tosihisa	9:9ca3db7ed7cb	2350	fp->sclust = LD_CLUST(dir); /* File start cluster */
tosihisa	9:9ca3db7ed7cb	2351	fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
tosihisa	9:9ca3db7ed7cb	2352	fp->fptr = 0; /* File pointer */
tosihisa	9:9ca3db7ed7cb	2353	fp->dsect = 0;
tosihisa	9:9ca3db7ed7cb	2354	#if _USE_FASTSEEK
tosihisa	9:9ca3db7ed7cb	2355	fp->cltbl = 0; /* Normal seek mode */
tosihisa	9:9ca3db7ed7cb	2356	#endif
tosihisa	9:9ca3db7ed7cb	2357	fp->fs = dj.fs; fp->id = dj.fs->id; /* Validate file object */
tosihisa	9:9ca3db7ed7cb	2358	}
tosihisa	9:9ca3db7ed7cb	2359
tosihisa	9:9ca3db7ed7cb	2360	LEAVE_FF(dj.fs, res);
tosihisa	9:9ca3db7ed7cb	2361	}
tosihisa	9:9ca3db7ed7cb	2362
tosihisa	9:9ca3db7ed7cb	2363
tosihisa	9:9ca3db7ed7cb	2364
tosihisa	9:9ca3db7ed7cb	2365
tosihisa	9:9ca3db7ed7cb	2366	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2367	/* Read File */
tosihisa	9:9ca3db7ed7cb	2368	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2369
tosihisa	9:9ca3db7ed7cb	2370	FRESULT f_read (
tosihisa	9:9ca3db7ed7cb	2371	FIL_t fp, / Pointer to the file object */
tosihisa	9:9ca3db7ed7cb	2372	void buff, / Pointer to data buffer */
tosihisa	9:9ca3db7ed7cb	2373	UINT btr, /* Number of bytes to read */
tosihisa	9:9ca3db7ed7cb	2374	UINT br / Pointer to number of bytes read */
tosihisa	9:9ca3db7ed7cb	2375	)
tosihisa	9:9ca3db7ed7cb	2376	{
tosihisa	9:9ca3db7ed7cb	2377	FRESULT res;
tosihisa	9:9ca3db7ed7cb	2378	DWORD clst, sect, remain;
tosihisa	9:9ca3db7ed7cb	2379	UINT rcnt, cc;
tosihisa	9:9ca3db7ed7cb	2380	BYTE csect, rbuff = (BYTE)buff;
tosihisa	9:9ca3db7ed7cb	2381
tosihisa	9:9ca3db7ed7cb	2382
tosihisa	9:9ca3db7ed7cb	2383	br = 0; / Initialize byte counter */
tosihisa	9:9ca3db7ed7cb	2384
tosihisa	9:9ca3db7ed7cb	2385	res = validate(fp->fs, fp->id); /* Check validity */
tosihisa	9:9ca3db7ed7cb	2386	if (res != FR_OK) LEAVE_FF(fp->fs, res);
tosihisa	9:9ca3db7ed7cb	2387	if (fp->flag & FA__ERROR) /* Aborted file? */
tosihisa	9:9ca3db7ed7cb	2388	LEAVE_FF(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	2389	if (!(fp->flag & FA_READ)) /* Check access mode */
tosihisa	9:9ca3db7ed7cb	2390	LEAVE_FF(fp->fs, FR_DENIED);
tosihisa	9:9ca3db7ed7cb	2391	remain = fp->fsize - fp->fptr;
tosihisa	9:9ca3db7ed7cb	2392	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
tosihisa	9:9ca3db7ed7cb	2393
tosihisa	9:9ca3db7ed7cb	2394	for ( ; btr; /* Repeat until all data read */
tosihisa	9:9ca3db7ed7cb	2395	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
tosihisa	9:9ca3db7ed7cb	2396	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
tosihisa	9:9ca3db7ed7cb	2397	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
tosihisa	9:9ca3db7ed7cb	2398	if (!csect) { /* On the cluster boundary? */
tosihisa	9:9ca3db7ed7cb	2399	if (fp->fptr == 0) { /* On the top of the file? */
tosihisa	9:9ca3db7ed7cb	2400	clst = fp->sclust; /* Follow from the origin */
tosihisa	9:9ca3db7ed7cb	2401	} else { /* Middle or end of the file */
tosihisa	9:9ca3db7ed7cb	2402	#if _USE_FASTSEEK
tosihisa	9:9ca3db7ed7cb	2403	if (fp->cltbl)
tosihisa	9:9ca3db7ed7cb	2404	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
tosihisa	9:9ca3db7ed7cb	2405	else
tosihisa	9:9ca3db7ed7cb	2406	#endif
tosihisa	9:9ca3db7ed7cb	2407	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
tosihisa	9:9ca3db7ed7cb	2408	}
tosihisa	9:9ca3db7ed7cb	2409	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	2410	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2411	fp->clust = clst; /* Update current cluster */
tosihisa	9:9ca3db7ed7cb	2412	}
tosihisa	9:9ca3db7ed7cb	2413	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
tosihisa	9:9ca3db7ed7cb	2414	if (!sect) ABORT(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	2415	sect += csect;
tosihisa	9:9ca3db7ed7cb	2416	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
tosihisa	9:9ca3db7ed7cb	2417	if (cc) { /* Read maximum contiguous sectors directly */
tosihisa	9:9ca3db7ed7cb	2418	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
tosihisa	9:9ca3db7ed7cb	2419	cc = fp->fs->csize - csect;
tosihisa	9:9ca3db7ed7cb	2420	if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK)
tosihisa	9:9ca3db7ed7cb	2421	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2422	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
tosihisa	9:9ca3db7ed7cb	2423	#if _FS_TINY
tosihisa	9:9ca3db7ed7cb	2424	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
tosihisa	9:9ca3db7ed7cb	2425	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
tosihisa	9:9ca3db7ed7cb	2426	#else
tosihisa	9:9ca3db7ed7cb	2427	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
tosihisa	9:9ca3db7ed7cb	2428	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
tosihisa	9:9ca3db7ed7cb	2429	#endif
tosihisa	9:9ca3db7ed7cb	2430	#endif
tosihisa	9:9ca3db7ed7cb	2431	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
tosihisa	9:9ca3db7ed7cb	2432	continue;
tosihisa	9:9ca3db7ed7cb	2433	}
tosihisa	9:9ca3db7ed7cb	2434	#if !_FS_TINY
tosihisa	9:9ca3db7ed7cb	2435	if (fp->dsect != sect) { /* Load data sector if not in cache */
tosihisa	9:9ca3db7ed7cb	2436	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	2437	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
tosihisa	9:9ca3db7ed7cb	2438	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
tosihisa	9:9ca3db7ed7cb	2439	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2440	fp->flag &= ~FA__DIRTY;
tosihisa	9:9ca3db7ed7cb	2441	}
tosihisa	9:9ca3db7ed7cb	2442	#endif
tosihisa	9:9ca3db7ed7cb	2443	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
tosihisa	9:9ca3db7ed7cb	2444	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2445	}
tosihisa	9:9ca3db7ed7cb	2446	#endif
tosihisa	9:9ca3db7ed7cb	2447	fp->dsect = sect;
tosihisa	9:9ca3db7ed7cb	2448	}
tosihisa	9:9ca3db7ed7cb	2449	rcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
tosihisa	9:9ca3db7ed7cb	2450	if (rcnt > btr) rcnt = btr;
tosihisa	9:9ca3db7ed7cb	2451	#if _FS_TINY
tosihisa	9:9ca3db7ed7cb	2452	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
tosihisa	9:9ca3db7ed7cb	2453	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2454	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
tosihisa	9:9ca3db7ed7cb	2455	#else
tosihisa	9:9ca3db7ed7cb	2456	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
tosihisa	9:9ca3db7ed7cb	2457	#endif
tosihisa	9:9ca3db7ed7cb	2458	}
tosihisa	9:9ca3db7ed7cb	2459
tosihisa	9:9ca3db7ed7cb	2460	LEAVE_FF(fp->fs, FR_OK);
tosihisa	9:9ca3db7ed7cb	2461	}
tosihisa	9:9ca3db7ed7cb	2462
tosihisa	9:9ca3db7ed7cb	2463
tosihisa	9:9ca3db7ed7cb	2464
tosihisa	9:9ca3db7ed7cb	2465
tosihisa	9:9ca3db7ed7cb	2466	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	2467	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2468	/* Write File */
tosihisa	9:9ca3db7ed7cb	2469	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2470
tosihisa	9:9ca3db7ed7cb	2471	FRESULT f_write (
tosihisa	9:9ca3db7ed7cb	2472	FIL_t fp, / Pointer to the file object */
tosihisa	9:9ca3db7ed7cb	2473	const void buff, / Pointer to the data to be written */
tosihisa	9:9ca3db7ed7cb	2474	UINT btw, /* Number of bytes to write */
tosihisa	9:9ca3db7ed7cb	2475	UINT bw / Pointer to number of bytes written */
tosihisa	9:9ca3db7ed7cb	2476	)
tosihisa	9:9ca3db7ed7cb	2477	{
tosihisa	9:9ca3db7ed7cb	2478	FRESULT res;
tosihisa	9:9ca3db7ed7cb	2479	DWORD clst, sect;
tosihisa	9:9ca3db7ed7cb	2480	UINT wcnt, cc;
tosihisa	9:9ca3db7ed7cb	2481	const BYTE wbuff = (BYTE)buff;
tosihisa	9:9ca3db7ed7cb	2482	BYTE csect;
tosihisa	9:9ca3db7ed7cb	2483
tosihisa	9:9ca3db7ed7cb	2484
tosihisa	9:9ca3db7ed7cb	2485	bw = 0; / Initialize byte counter */
tosihisa	9:9ca3db7ed7cb	2486
tosihisa	9:9ca3db7ed7cb	2487	res = validate(fp->fs, fp->id); /* Check validity */
tosihisa	9:9ca3db7ed7cb	2488	if (res != FR_OK) LEAVE_FF(fp->fs, res);
tosihisa	9:9ca3db7ed7cb	2489	if (fp->flag & FA__ERROR) /* Aborted file? */
tosihisa	9:9ca3db7ed7cb	2490	LEAVE_FF(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	2491	if (!(fp->flag & FA_WRITE)) /* Check access mode */
tosihisa	9:9ca3db7ed7cb	2492	LEAVE_FF(fp->fs, FR_DENIED);
tosihisa	9:9ca3db7ed7cb	2493	if ((DWORD)(fp->fsize + btw) < fp->fsize) btw = 0; /* File size cannot reach 4GB */
tosihisa	9:9ca3db7ed7cb	2494
tosihisa	9:9ca3db7ed7cb	2495	for ( ; btw; /* Repeat until all data written */
tosihisa	9:9ca3db7ed7cb	2496	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
tosihisa	9:9ca3db7ed7cb	2497	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
tosihisa	9:9ca3db7ed7cb	2498	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
tosihisa	9:9ca3db7ed7cb	2499	if (!csect) { /* On the cluster boundary? */
tosihisa	9:9ca3db7ed7cb	2500	if (fp->fptr == 0) { /* On the top of the file? */
tosihisa	9:9ca3db7ed7cb	2501	clst = fp->sclust; /* Follow from the origin */
tosihisa	9:9ca3db7ed7cb	2502	if (clst == 0) /* When no cluster is allocated, */
tosihisa	9:9ca3db7ed7cb	2503	fp->sclust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
tosihisa	9:9ca3db7ed7cb	2504	} else { /* Middle or end of the file */
tosihisa	9:9ca3db7ed7cb	2505	#if _USE_FASTSEEK
tosihisa	9:9ca3db7ed7cb	2506	if (fp->cltbl)
tosihisa	9:9ca3db7ed7cb	2507	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
tosihisa	9:9ca3db7ed7cb	2508	else
tosihisa	9:9ca3db7ed7cb	2509	#endif
tosihisa	9:9ca3db7ed7cb	2510	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
tosihisa	9:9ca3db7ed7cb	2511	}
tosihisa	9:9ca3db7ed7cb	2512	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
tosihisa	9:9ca3db7ed7cb	2513	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	2514	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2515	fp->clust = clst; /* Update current cluster */
tosihisa	9:9ca3db7ed7cb	2516	}
tosihisa	9:9ca3db7ed7cb	2517	#if _FS_TINY
tosihisa	9:9ca3db7ed7cb	2518	if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write-back sector cache */
tosihisa	9:9ca3db7ed7cb	2519	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2520	#else
tosihisa	9:9ca3db7ed7cb	2521	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
tosihisa	9:9ca3db7ed7cb	2522	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
tosihisa	9:9ca3db7ed7cb	2523	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2524	fp->flag &= ~FA__DIRTY;
tosihisa	9:9ca3db7ed7cb	2525	}
tosihisa	9:9ca3db7ed7cb	2526	#endif
tosihisa	9:9ca3db7ed7cb	2527	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
tosihisa	9:9ca3db7ed7cb	2528	if (!sect) ABORT(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	2529	sect += csect;
tosihisa	9:9ca3db7ed7cb	2530	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
tosihisa	9:9ca3db7ed7cb	2531	if (cc) { /* Write maximum contiguous sectors directly */
tosihisa	9:9ca3db7ed7cb	2532	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
tosihisa	9:9ca3db7ed7cb	2533	cc = fp->fs->csize - csect;
tosihisa	9:9ca3db7ed7cb	2534	if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK)
tosihisa	9:9ca3db7ed7cb	2535	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2536	#if _FS_TINY
tosihisa	9:9ca3db7ed7cb	2537	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
tosihisa	9:9ca3db7ed7cb	2538	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
tosihisa	9:9ca3db7ed7cb	2539	fp->fs->wflag = 0;
tosihisa	9:9ca3db7ed7cb	2540	}
tosihisa	9:9ca3db7ed7cb	2541	#else
tosihisa	9:9ca3db7ed7cb	2542	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
tosihisa	9:9ca3db7ed7cb	2543	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
tosihisa	9:9ca3db7ed7cb	2544	fp->flag &= ~FA__DIRTY;
tosihisa	9:9ca3db7ed7cb	2545	}
tosihisa	9:9ca3db7ed7cb	2546	#endif
tosihisa	9:9ca3db7ed7cb	2547	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
tosihisa	9:9ca3db7ed7cb	2548	continue;
tosihisa	9:9ca3db7ed7cb	2549	}
tosihisa	9:9ca3db7ed7cb	2550	#if _FS_TINY
tosihisa	9:9ca3db7ed7cb	2551	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
tosihisa	9:9ca3db7ed7cb	2552	if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2553	fp->fs->winsect = sect;
tosihisa	9:9ca3db7ed7cb	2554	}
tosihisa	9:9ca3db7ed7cb	2555	#else
tosihisa	9:9ca3db7ed7cb	2556	if (fp->dsect != sect) { /* Fill sector cache with file data */
tosihisa	9:9ca3db7ed7cb	2557	if (fp->fptr < fp->fsize &&
tosihisa	9:9ca3db7ed7cb	2558	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
tosihisa	9:9ca3db7ed7cb	2559	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2560	}
tosihisa	9:9ca3db7ed7cb	2561	#endif
tosihisa	9:9ca3db7ed7cb	2562	fp->dsect = sect;
tosihisa	9:9ca3db7ed7cb	2563	}
tosihisa	9:9ca3db7ed7cb	2564	wcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Put partial sector into file I/O buffer */
tosihisa	9:9ca3db7ed7cb	2565	if (wcnt > btw) wcnt = btw;
tosihisa	9:9ca3db7ed7cb	2566	#if _FS_TINY
tosihisa	9:9ca3db7ed7cb	2567	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
tosihisa	9:9ca3db7ed7cb	2568	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2569	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
tosihisa	9:9ca3db7ed7cb	2570	fp->fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	2571	#else
tosihisa	9:9ca3db7ed7cb	2572	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
tosihisa	9:9ca3db7ed7cb	2573	fp->flag \|= FA__DIRTY;
tosihisa	9:9ca3db7ed7cb	2574	#endif
tosihisa	9:9ca3db7ed7cb	2575	}
tosihisa	9:9ca3db7ed7cb	2576
tosihisa	9:9ca3db7ed7cb	2577	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
tosihisa	9:9ca3db7ed7cb	2578	fp->flag \|= FA__WRITTEN; /* Set file change flag */
tosihisa	9:9ca3db7ed7cb	2579
tosihisa	9:9ca3db7ed7cb	2580	LEAVE_FF(fp->fs, FR_OK);
tosihisa	9:9ca3db7ed7cb	2581	}
tosihisa	9:9ca3db7ed7cb	2582
tosihisa	9:9ca3db7ed7cb	2583
tosihisa	9:9ca3db7ed7cb	2584
tosihisa	9:9ca3db7ed7cb	2585
tosihisa	9:9ca3db7ed7cb	2586	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2587	/* Synchronize the File Object */
tosihisa	9:9ca3db7ed7cb	2588	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2589
tosihisa	9:9ca3db7ed7cb	2590	FRESULT f_sync (
tosihisa	9:9ca3db7ed7cb	2591	FIL_t fp / Pointer to the file object */
tosihisa	9:9ca3db7ed7cb	2592	)
tosihisa	9:9ca3db7ed7cb	2593	{
tosihisa	9:9ca3db7ed7cb	2594	FRESULT res;
tosihisa	9:9ca3db7ed7cb	2595	DWORD tim;
tosihisa	9:9ca3db7ed7cb	2596	BYTE *dir;
tosihisa	9:9ca3db7ed7cb	2597
tosihisa	9:9ca3db7ed7cb	2598
tosihisa	9:9ca3db7ed7cb	2599	res = validate(fp->fs, fp->id); /* Check validity of the object */
tosihisa	9:9ca3db7ed7cb	2600	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	2601	if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
tosihisa	9:9ca3db7ed7cb	2602	#if !_FS_TINY /* Write-back dirty buffer */
tosihisa	9:9ca3db7ed7cb	2603	if (fp->flag & FA__DIRTY) {
tosihisa	9:9ca3db7ed7cb	2604	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
tosihisa	9:9ca3db7ed7cb	2605	LEAVE_FF(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2606	fp->flag &= ~FA__DIRTY;
tosihisa	9:9ca3db7ed7cb	2607	}
tosihisa	9:9ca3db7ed7cb	2608	#endif
tosihisa	9:9ca3db7ed7cb	2609	/* Update the directory entry */
tosihisa	9:9ca3db7ed7cb	2610	res = move_window(fp->fs, fp->dir_sect);
tosihisa	9:9ca3db7ed7cb	2611	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	2612	dir = fp->dir_ptr;
tosihisa	9:9ca3db7ed7cb	2613	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
tosihisa	9:9ca3db7ed7cb	2614	ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
tosihisa	9:9ca3db7ed7cb	2615	ST_CLUST(dir, fp->sclust); /* Update start cluster */
tosihisa	9:9ca3db7ed7cb	2616	tim = get_fattime(); /* Update updated time */
tosihisa	9:9ca3db7ed7cb	2617	ST_DWORD(dir+DIR_WrtTime, tim);
tosihisa	9:9ca3db7ed7cb	2618	fp->flag &= ~FA__WRITTEN;
tosihisa	9:9ca3db7ed7cb	2619	fp->fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	2620	res = sync(fp->fs);
tosihisa	9:9ca3db7ed7cb	2621	}
tosihisa	9:9ca3db7ed7cb	2622	}
tosihisa	9:9ca3db7ed7cb	2623	}
tosihisa	9:9ca3db7ed7cb	2624
tosihisa	9:9ca3db7ed7cb	2625	LEAVE_FF(fp->fs, res);
tosihisa	9:9ca3db7ed7cb	2626	}
tosihisa	9:9ca3db7ed7cb	2627
tosihisa	9:9ca3db7ed7cb	2628	#endif /* !_FS_READONLY */
tosihisa	9:9ca3db7ed7cb	2629
tosihisa	9:9ca3db7ed7cb	2630
tosihisa	9:9ca3db7ed7cb	2631
tosihisa	9:9ca3db7ed7cb	2632
tosihisa	9:9ca3db7ed7cb	2633	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2634	/* Close File */
tosihisa	9:9ca3db7ed7cb	2635	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2636
tosihisa	9:9ca3db7ed7cb	2637	FRESULT f_close (
tosihisa	9:9ca3db7ed7cb	2638	FIL_t fp / Pointer to the file object to be closed */
tosihisa	9:9ca3db7ed7cb	2639	)
tosihisa	9:9ca3db7ed7cb	2640	{
tosihisa	9:9ca3db7ed7cb	2641	FRESULT res;
tosihisa	9:9ca3db7ed7cb	2642
tosihisa	9:9ca3db7ed7cb	2643	#if _FS_READONLY
tosihisa	9:9ca3db7ed7cb	2644	FATFS *fs = fp->fs;
tosihisa	9:9ca3db7ed7cb	2645	res = validate(fs, fp->id);
tosihisa	9:9ca3db7ed7cb	2646	if (res == FR_OK) fp->fs = 0; /* Discard file object */
tosihisa	9:9ca3db7ed7cb	2647	LEAVE_FF(fs, res);
tosihisa	9:9ca3db7ed7cb	2648
tosihisa	9:9ca3db7ed7cb	2649	#else
tosihisa	9:9ca3db7ed7cb	2650	res = f_sync(fp); /* Flush cached data */
tosihisa	9:9ca3db7ed7cb	2651	#if _FS_SHARE
tosihisa	9:9ca3db7ed7cb	2652	if (res == FR_OK) { /* Decrement open counter */
tosihisa	9:9ca3db7ed7cb	2653	#if _FS_REENTRANT
tosihisa	9:9ca3db7ed7cb	2654	res = validate(fp->fs, fp->id);
tosihisa	9:9ca3db7ed7cb	2655	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	2656	res = dec_lock(fp->lockid);
tosihisa	9:9ca3db7ed7cb	2657	unlock_fs(fp->fs, FR_OK);
tosihisa	9:9ca3db7ed7cb	2658	}
tosihisa	9:9ca3db7ed7cb	2659	#else
tosihisa	9:9ca3db7ed7cb	2660	res = dec_lock(fp->lockid);
tosihisa	9:9ca3db7ed7cb	2661	#endif
tosihisa	9:9ca3db7ed7cb	2662	}
tosihisa	9:9ca3db7ed7cb	2663	#endif
tosihisa	9:9ca3db7ed7cb	2664	if (res == FR_OK) fp->fs = 0; /* Discard file object */
tosihisa	9:9ca3db7ed7cb	2665	return res;
tosihisa	9:9ca3db7ed7cb	2666	#endif
tosihisa	9:9ca3db7ed7cb	2667	}
tosihisa	9:9ca3db7ed7cb	2668
tosihisa	9:9ca3db7ed7cb	2669
tosihisa	9:9ca3db7ed7cb	2670
tosihisa	9:9ca3db7ed7cb	2671
tosihisa	9:9ca3db7ed7cb	2672	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2673	/* Current Drive/Directory Handlings */
tosihisa	9:9ca3db7ed7cb	2674	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2675
tosihisa	9:9ca3db7ed7cb	2676	#if _FS_RPATH >= 1
tosihisa	9:9ca3db7ed7cb	2677
tosihisa	9:9ca3db7ed7cb	2678	FRESULT f_chdrive (
tosihisa	9:9ca3db7ed7cb	2679	BYTE drv /* Drive number */
tosihisa	9:9ca3db7ed7cb	2680	)
tosihisa	9:9ca3db7ed7cb	2681	{
tosihisa	9:9ca3db7ed7cb	2682	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
tosihisa	9:9ca3db7ed7cb	2683
tosihisa	9:9ca3db7ed7cb	2684	CurrVol = drv;
tosihisa	9:9ca3db7ed7cb	2685
tosihisa	9:9ca3db7ed7cb	2686	return FR_OK;
tosihisa	9:9ca3db7ed7cb	2687	}
tosihisa	9:9ca3db7ed7cb	2688
tosihisa	9:9ca3db7ed7cb	2689
tosihisa	9:9ca3db7ed7cb	2690
tosihisa	9:9ca3db7ed7cb	2691	FRESULT f_chdir (
tosihisa	9:9ca3db7ed7cb	2692	const TCHAR path / Pointer to the directory path */
tosihisa	9:9ca3db7ed7cb	2693	)
tosihisa	9:9ca3db7ed7cb	2694	{
tosihisa	9:9ca3db7ed7cb	2695	FRESULT res;
tosihisa	9:9ca3db7ed7cb	2696	DIR_t dj;
tosihisa	9:9ca3db7ed7cb	2697	DEF_NAMEBUF;
tosihisa	9:9ca3db7ed7cb	2698
tosihisa	9:9ca3db7ed7cb	2699
tosihisa	9:9ca3db7ed7cb	2700	res = chk_mounted(&path, &dj.fs, 0);
tosihisa	9:9ca3db7ed7cb	2701	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	2702	INIT_BUF(dj);
tosihisa	9:9ca3db7ed7cb	2703	res = follow_path(&dj, path); /* Follow the path */
tosihisa	9:9ca3db7ed7cb	2704	FREE_BUF();
tosihisa	9:9ca3db7ed7cb	2705	if (res == FR_OK) { /* Follow completed */
tosihisa	9:9ca3db7ed7cb	2706	if (!dj.dir) {
tosihisa	9:9ca3db7ed7cb	2707	dj.fs->cdir = dj.sclust; /* Start directory itself */
tosihisa	9:9ca3db7ed7cb	2708	} else {
tosihisa	9:9ca3db7ed7cb	2709	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
tosihisa	9:9ca3db7ed7cb	2710	dj.fs->cdir = LD_CLUST(dj.dir);
tosihisa	9:9ca3db7ed7cb	2711	else
tosihisa	9:9ca3db7ed7cb	2712	res = FR_NO_PATH; /* Reached but a file */
tosihisa	9:9ca3db7ed7cb	2713	}
tosihisa	9:9ca3db7ed7cb	2714	}
tosihisa	9:9ca3db7ed7cb	2715	if (res == FR_NO_FILE) res = FR_NO_PATH;
tosihisa	9:9ca3db7ed7cb	2716	}
tosihisa	9:9ca3db7ed7cb	2717
tosihisa	9:9ca3db7ed7cb	2718	LEAVE_FF(dj.fs, res);
tosihisa	9:9ca3db7ed7cb	2719	}
tosihisa	9:9ca3db7ed7cb	2720
tosihisa	9:9ca3db7ed7cb	2721
tosihisa	9:9ca3db7ed7cb	2722	#if _FS_RPATH >= 2
tosihisa	9:9ca3db7ed7cb	2723	FRESULT f_getcwd (
tosihisa	9:9ca3db7ed7cb	2724	TCHAR path, / Pointer to the directory path */
tosihisa	9:9ca3db7ed7cb	2725	UINT sz_path /* Size of path */
tosihisa	9:9ca3db7ed7cb	2726	)
tosihisa	9:9ca3db7ed7cb	2727	{
tosihisa	9:9ca3db7ed7cb	2728	FRESULT res;
tosihisa	9:9ca3db7ed7cb	2729	DIR_t dj;
tosihisa	9:9ca3db7ed7cb	2730	UINT i, n;
tosihisa	9:9ca3db7ed7cb	2731	DWORD ccl;
tosihisa	9:9ca3db7ed7cb	2732	TCHAR *tp;
tosihisa	9:9ca3db7ed7cb	2733	FILINFO fno;
tosihisa	9:9ca3db7ed7cb	2734	DEF_NAMEBUF;
tosihisa	9:9ca3db7ed7cb	2735
tosihisa	9:9ca3db7ed7cb	2736
tosihisa	9:9ca3db7ed7cb	2737	*path = 0;
tosihisa	9:9ca3db7ed7cb	2738	res = chk_mounted((const TCHAR*)&path, &dj.fs, 0); / Get current volume */
tosihisa	9:9ca3db7ed7cb	2739	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	2740	INIT_BUF(dj);
tosihisa	9:9ca3db7ed7cb	2741	i = sz_path; /* Bottom of buffer (dir stack base) */
tosihisa	9:9ca3db7ed7cb	2742	dj.sclust = dj.fs->cdir; /* Start to follow upper dir from current dir */
tosihisa	9:9ca3db7ed7cb	2743	while ((ccl = dj.sclust) != 0) { /* Repeat while current dir is a sub-dir */
tosihisa	9:9ca3db7ed7cb	2744	res = dir_sdi(&dj, 1); /* Get parent dir */
tosihisa	9:9ca3db7ed7cb	2745	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	2746	res = dir_read(&dj);
tosihisa	9:9ca3db7ed7cb	2747	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	2748	dj.sclust = LD_CLUST(dj.dir); /* Goto parent dir */
tosihisa	9:9ca3db7ed7cb	2749	res = dir_sdi(&dj, 0);
tosihisa	9:9ca3db7ed7cb	2750	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	2751	do { /* Find the entry links to the child dir */
tosihisa	9:9ca3db7ed7cb	2752	res = dir_read(&dj);
tosihisa	9:9ca3db7ed7cb	2753	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	2754	if (ccl == LD_CLUST(dj.dir)) break; /* Found the entry */
tosihisa	9:9ca3db7ed7cb	2755	res = dir_next(&dj, 0);
tosihisa	9:9ca3db7ed7cb	2756	} while (res == FR_OK);
tosihisa	9:9ca3db7ed7cb	2757	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
tosihisa	9:9ca3db7ed7cb	2758	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	2759	#if _USE_LFN
tosihisa	9:9ca3db7ed7cb	2760	fno.lfname = path;
tosihisa	9:9ca3db7ed7cb	2761	fno.lfsize = i;
tosihisa	9:9ca3db7ed7cb	2762	#endif
tosihisa	9:9ca3db7ed7cb	2763	get_fileinfo(&dj, &fno); /* Get the dir name and push it to the buffer */
tosihisa	9:9ca3db7ed7cb	2764	tp = fno.fname;
tosihisa	9:9ca3db7ed7cb	2765	if (_USE_LFN && *path) tp = path;
tosihisa	9:9ca3db7ed7cb	2766	for (n = 0; tp[n]; n++) ;
tosihisa	9:9ca3db7ed7cb	2767	if (i < n + 3) {
tosihisa	9:9ca3db7ed7cb	2768	res = FR_NOT_ENOUGH_CORE; break;
tosihisa	9:9ca3db7ed7cb	2769	}
tosihisa	9:9ca3db7ed7cb	2770	while (n) path[--i] = tp[--n];
tosihisa	9:9ca3db7ed7cb	2771	path[--i] = '/';
tosihisa	9:9ca3db7ed7cb	2772	}
tosihisa	9:9ca3db7ed7cb	2773	tp = path;
tosihisa	9:9ca3db7ed7cb	2774	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	2775	tp++ = '0' + CurrVol; / Put drive number */
tosihisa	9:9ca3db7ed7cb	2776	*tp++ = ':';
tosihisa	9:9ca3db7ed7cb	2777	if (i == sz_path) { /* Root-dir */
tosihisa	9:9ca3db7ed7cb	2778	*tp++ = '/';
tosihisa	9:9ca3db7ed7cb	2779	} else { /* Sub-dir */
tosihisa	9:9ca3db7ed7cb	2780	do /* Add stacked path str */
tosihisa	9:9ca3db7ed7cb	2781	*tp++ = path[i++];
tosihisa	9:9ca3db7ed7cb	2782	while (i < sz_path);
tosihisa	9:9ca3db7ed7cb	2783	}
tosihisa	9:9ca3db7ed7cb	2784	}
tosihisa	9:9ca3db7ed7cb	2785	*tp = 0;
tosihisa	9:9ca3db7ed7cb	2786	FREE_BUF();
tosihisa	9:9ca3db7ed7cb	2787	}
tosihisa	9:9ca3db7ed7cb	2788
tosihisa	9:9ca3db7ed7cb	2789	LEAVE_FF(dj.fs, res);
tosihisa	9:9ca3db7ed7cb	2790	}
tosihisa	9:9ca3db7ed7cb	2791	#endif /* _FS_RPATH >= 2 */
tosihisa	9:9ca3db7ed7cb	2792	#endif /* _FS_RPATH >= 1 */
tosihisa	9:9ca3db7ed7cb	2793
tosihisa	9:9ca3db7ed7cb	2794
tosihisa	9:9ca3db7ed7cb	2795
tosihisa	9:9ca3db7ed7cb	2796	#if _FS_MINIMIZE <= 2
tosihisa	9:9ca3db7ed7cb	2797	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2798	/* Seek File R/W Pointer */
tosihisa	9:9ca3db7ed7cb	2799	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2800
tosihisa	9:9ca3db7ed7cb	2801	FRESULT f_lseek (
tosihisa	9:9ca3db7ed7cb	2802	FIL_t fp, / Pointer to the file object */
tosihisa	9:9ca3db7ed7cb	2803	DWORD ofs /* File pointer from top of file */
tosihisa	9:9ca3db7ed7cb	2804	)
tosihisa	9:9ca3db7ed7cb	2805	{
tosihisa	9:9ca3db7ed7cb	2806	FRESULT res;
tosihisa	9:9ca3db7ed7cb	2807
tosihisa	9:9ca3db7ed7cb	2808
tosihisa	9:9ca3db7ed7cb	2809	res = validate(fp->fs, fp->id); /* Check validity of the object */
tosihisa	9:9ca3db7ed7cb	2810	if (res != FR_OK) LEAVE_FF(fp->fs, res);
tosihisa	9:9ca3db7ed7cb	2811	if (fp->flag & FA__ERROR) /* Check abort flag */
tosihisa	9:9ca3db7ed7cb	2812	LEAVE_FF(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	2813
tosihisa	9:9ca3db7ed7cb	2814	#if _USE_FASTSEEK
tosihisa	9:9ca3db7ed7cb	2815	if (fp->cltbl) { /* Fast seek */
tosihisa	9:9ca3db7ed7cb	2816	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
tosihisa	9:9ca3db7ed7cb	2817
tosihisa	9:9ca3db7ed7cb	2818	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
tosihisa	9:9ca3db7ed7cb	2819	tbl = fp->cltbl;
tosihisa	9:9ca3db7ed7cb	2820	tlen = tbl++; ulen = 2; / Given table size and required table size */
tosihisa	9:9ca3db7ed7cb	2821	cl = fp->sclust; /* Top of the chain */
tosihisa	9:9ca3db7ed7cb	2822	if (cl) {
tosihisa	9:9ca3db7ed7cb	2823	do {
tosihisa	9:9ca3db7ed7cb	2824	/* Get a fragment */
tosihisa	9:9ca3db7ed7cb	2825	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
tosihisa	9:9ca3db7ed7cb	2826	do {
tosihisa	9:9ca3db7ed7cb	2827	pcl = cl; ncl++;
tosihisa	9:9ca3db7ed7cb	2828	cl = get_fat(fp->fs, cl);
tosihisa	9:9ca3db7ed7cb	2829	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	2830	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2831	} while (cl == pcl + 1);
tosihisa	9:9ca3db7ed7cb	2832	if (ulen <= tlen) { /* Store the length and top of the fragment */
tosihisa	9:9ca3db7ed7cb	2833	tbl++ = ncl; tbl++ = tcl;
tosihisa	9:9ca3db7ed7cb	2834	}
tosihisa	9:9ca3db7ed7cb	2835	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
tosihisa	9:9ca3db7ed7cb	2836	}
tosihisa	9:9ca3db7ed7cb	2837	fp->cltbl = ulen; / Number of items used */
tosihisa	9:9ca3db7ed7cb	2838	if (ulen <= tlen)
tosihisa	9:9ca3db7ed7cb	2839	tbl = 0; / Terminate table */
tosihisa	9:9ca3db7ed7cb	2840	else
tosihisa	9:9ca3db7ed7cb	2841	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
tosihisa	9:9ca3db7ed7cb	2842
tosihisa	9:9ca3db7ed7cb	2843	} else { /* Fast seek */
tosihisa	9:9ca3db7ed7cb	2844	if (ofs > fp->fsize) /* Clip offset at the file size */
tosihisa	9:9ca3db7ed7cb	2845	ofs = fp->fsize;
tosihisa	9:9ca3db7ed7cb	2846	fp->fptr = ofs; /* Set file pointer */
tosihisa	9:9ca3db7ed7cb	2847	if (ofs) {
tosihisa	9:9ca3db7ed7cb	2848	fp->clust = clmt_clust(fp, ofs - 1);
tosihisa	9:9ca3db7ed7cb	2849	dsc = clust2sect(fp->fs, fp->clust);
tosihisa	9:9ca3db7ed7cb	2850	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	2851	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
tosihisa	9:9ca3db7ed7cb	2852	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
tosihisa	9:9ca3db7ed7cb	2853	#if !_FS_TINY
tosihisa	9:9ca3db7ed7cb	2854	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	2855	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
tosihisa	9:9ca3db7ed7cb	2856	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
tosihisa	9:9ca3db7ed7cb	2857	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2858	fp->flag &= ~FA__DIRTY;
tosihisa	9:9ca3db7ed7cb	2859	}
tosihisa	9:9ca3db7ed7cb	2860	#endif
tosihisa	9:9ca3db7ed7cb	2861	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
tosihisa	9:9ca3db7ed7cb	2862	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2863	#endif
tosihisa	9:9ca3db7ed7cb	2864	fp->dsect = dsc;
tosihisa	9:9ca3db7ed7cb	2865	}
tosihisa	9:9ca3db7ed7cb	2866	}
tosihisa	9:9ca3db7ed7cb	2867	}
tosihisa	9:9ca3db7ed7cb	2868	} else
tosihisa	9:9ca3db7ed7cb	2869	#endif
tosihisa	9:9ca3db7ed7cb	2870
tosihisa	9:9ca3db7ed7cb	2871	/* Normal Seek */
tosihisa	9:9ca3db7ed7cb	2872	{
tosihisa	9:9ca3db7ed7cb	2873	DWORD clst, bcs, nsect, ifptr;
tosihisa	9:9ca3db7ed7cb	2874
tosihisa	9:9ca3db7ed7cb	2875	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
tosihisa	9:9ca3db7ed7cb	2876	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	2877	&& !(fp->flag & FA_WRITE)
tosihisa	9:9ca3db7ed7cb	2878	#endif
tosihisa	9:9ca3db7ed7cb	2879	) ofs = fp->fsize;
tosihisa	9:9ca3db7ed7cb	2880
tosihisa	9:9ca3db7ed7cb	2881	ifptr = fp->fptr;
tosihisa	9:9ca3db7ed7cb	2882	fp->fptr = nsect = 0;
tosihisa	9:9ca3db7ed7cb	2883	if (ofs) {
tosihisa	9:9ca3db7ed7cb	2884	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
tosihisa	9:9ca3db7ed7cb	2885	if (ifptr > 0 &&
tosihisa	9:9ca3db7ed7cb	2886	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
tosihisa	9:9ca3db7ed7cb	2887	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
tosihisa	9:9ca3db7ed7cb	2888	ofs -= fp->fptr;
tosihisa	9:9ca3db7ed7cb	2889	clst = fp->clust;
tosihisa	9:9ca3db7ed7cb	2890	} else { /* When seek to back cluster, */
tosihisa	9:9ca3db7ed7cb	2891	clst = fp->sclust; /* start from the first cluster */
tosihisa	9:9ca3db7ed7cb	2892	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	2893	if (clst == 0) { /* If no cluster chain, create a new chain */
tosihisa	9:9ca3db7ed7cb	2894	clst = create_chain(fp->fs, 0);
tosihisa	9:9ca3db7ed7cb	2895	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	2896	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2897	fp->sclust = clst;
tosihisa	9:9ca3db7ed7cb	2898	}
tosihisa	9:9ca3db7ed7cb	2899	#endif
tosihisa	9:9ca3db7ed7cb	2900	fp->clust = clst;
tosihisa	9:9ca3db7ed7cb	2901	}
tosihisa	9:9ca3db7ed7cb	2902	if (clst != 0) {
tosihisa	9:9ca3db7ed7cb	2903	while (ofs > bcs) { /* Cluster following loop */
tosihisa	9:9ca3db7ed7cb	2904	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	2905	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
tosihisa	9:9ca3db7ed7cb	2906	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
tosihisa	9:9ca3db7ed7cb	2907	if (clst == 0) { /* When disk gets full, clip file size */
tosihisa	9:9ca3db7ed7cb	2908	ofs = bcs; break;
tosihisa	9:9ca3db7ed7cb	2909	}
tosihisa	9:9ca3db7ed7cb	2910	} else
tosihisa	9:9ca3db7ed7cb	2911	#endif
tosihisa	9:9ca3db7ed7cb	2912	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
tosihisa	9:9ca3db7ed7cb	2913	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2914	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	2915	fp->clust = clst;
tosihisa	9:9ca3db7ed7cb	2916	fp->fptr += bcs;
tosihisa	9:9ca3db7ed7cb	2917	ofs -= bcs;
tosihisa	9:9ca3db7ed7cb	2918	}
tosihisa	9:9ca3db7ed7cb	2919	fp->fptr += ofs;
tosihisa	9:9ca3db7ed7cb	2920	if (ofs % SS(fp->fs)) {
tosihisa	9:9ca3db7ed7cb	2921	nsect = clust2sect(fp->fs, clst); /* Current sector */
tosihisa	9:9ca3db7ed7cb	2922	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	2923	nsect += ofs / SS(fp->fs);
tosihisa	9:9ca3db7ed7cb	2924	}
tosihisa	9:9ca3db7ed7cb	2925	}
tosihisa	9:9ca3db7ed7cb	2926	}
tosihisa	9:9ca3db7ed7cb	2927	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
tosihisa	9:9ca3db7ed7cb	2928	#if !_FS_TINY
tosihisa	9:9ca3db7ed7cb	2929	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	2930	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
tosihisa	9:9ca3db7ed7cb	2931	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
tosihisa	9:9ca3db7ed7cb	2932	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2933	fp->flag &= ~FA__DIRTY;
tosihisa	9:9ca3db7ed7cb	2934	}
tosihisa	9:9ca3db7ed7cb	2935	#endif
tosihisa	9:9ca3db7ed7cb	2936	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
tosihisa	9:9ca3db7ed7cb	2937	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	2938	#endif
tosihisa	9:9ca3db7ed7cb	2939	fp->dsect = nsect;
tosihisa	9:9ca3db7ed7cb	2940	}
tosihisa	9:9ca3db7ed7cb	2941	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	2942	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
tosihisa	9:9ca3db7ed7cb	2943	fp->fsize = fp->fptr;
tosihisa	9:9ca3db7ed7cb	2944	fp->flag \|= FA__WRITTEN;
tosihisa	9:9ca3db7ed7cb	2945	}
tosihisa	9:9ca3db7ed7cb	2946	#endif
tosihisa	9:9ca3db7ed7cb	2947	}
tosihisa	9:9ca3db7ed7cb	2948
tosihisa	9:9ca3db7ed7cb	2949	LEAVE_FF(fp->fs, res);
tosihisa	9:9ca3db7ed7cb	2950	}
tosihisa	9:9ca3db7ed7cb	2951
tosihisa	9:9ca3db7ed7cb	2952
tosihisa	9:9ca3db7ed7cb	2953
tosihisa	9:9ca3db7ed7cb	2954	#if _FS_MINIMIZE <= 1
tosihisa	9:9ca3db7ed7cb	2955	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2956	/* Create a Directroy Object */
tosihisa	9:9ca3db7ed7cb	2957	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2958
tosihisa	9:9ca3db7ed7cb	2959	FRESULT f_opendir (
tosihisa	9:9ca3db7ed7cb	2960	DIR_t dj, / Pointer to directory object to create */
tosihisa	9:9ca3db7ed7cb	2961	const TCHAR path / Pointer to the directory path */
tosihisa	9:9ca3db7ed7cb	2962	)
tosihisa	9:9ca3db7ed7cb	2963	{
tosihisa	9:9ca3db7ed7cb	2964	FRESULT res;
tosihisa	9:9ca3db7ed7cb	2965	DEF_NAMEBUF;
tosihisa	9:9ca3db7ed7cb	2966
tosihisa	9:9ca3db7ed7cb	2967
tosihisa	9:9ca3db7ed7cb	2968	res = chk_mounted(&path, &dj->fs, 0);
tosihisa	9:9ca3db7ed7cb	2969	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	2970	INIT_BUF(*dj);
tosihisa	9:9ca3db7ed7cb	2971	res = follow_path(dj, path); /* Follow the path to the directory */
tosihisa	9:9ca3db7ed7cb	2972	FREE_BUF();
tosihisa	9:9ca3db7ed7cb	2973	if (res == FR_OK) { /* Follow completed */
tosihisa	9:9ca3db7ed7cb	2974	if (dj->dir) { /* It is not the root dir */
tosihisa	9:9ca3db7ed7cb	2975	if (dj->dir[DIR_Attr] & AM_DIR) { /* The object is a directory */
tosihisa	9:9ca3db7ed7cb	2976	dj->sclust = LD_CLUST(dj->dir);
tosihisa	9:9ca3db7ed7cb	2977	} else { /* The object is not a directory */
tosihisa	9:9ca3db7ed7cb	2978	res = FR_NO_PATH;
tosihisa	9:9ca3db7ed7cb	2979	}
tosihisa	9:9ca3db7ed7cb	2980	}
tosihisa	9:9ca3db7ed7cb	2981	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	2982	dj->id = dj->fs->id;
tosihisa	9:9ca3db7ed7cb	2983	res = dir_sdi(dj, 0); /* Rewind dir */
tosihisa	9:9ca3db7ed7cb	2984	}
tosihisa	9:9ca3db7ed7cb	2985	}
tosihisa	9:9ca3db7ed7cb	2986	if (res == FR_NO_FILE) res = FR_NO_PATH;
tosihisa	9:9ca3db7ed7cb	2987	}
tosihisa	9:9ca3db7ed7cb	2988
tosihisa	9:9ca3db7ed7cb	2989	LEAVE_FF(dj->fs, res);
tosihisa	9:9ca3db7ed7cb	2990	}
tosihisa	9:9ca3db7ed7cb	2991
tosihisa	9:9ca3db7ed7cb	2992
tosihisa	9:9ca3db7ed7cb	2993
tosihisa	9:9ca3db7ed7cb	2994
tosihisa	9:9ca3db7ed7cb	2995	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2996	/* Read Directory Entry in Sequense */
tosihisa	9:9ca3db7ed7cb	2997	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	2998
tosihisa	9:9ca3db7ed7cb	2999	FRESULT f_readdir (
tosihisa	9:9ca3db7ed7cb	3000	DIR_t dj, / Pointer to the open directory object */
tosihisa	9:9ca3db7ed7cb	3001	FILINFO fno / Pointer to file information to return */
tosihisa	9:9ca3db7ed7cb	3002	)
tosihisa	9:9ca3db7ed7cb	3003	{
tosihisa	9:9ca3db7ed7cb	3004	FRESULT res;
tosihisa	9:9ca3db7ed7cb	3005	DEF_NAMEBUF;
tosihisa	9:9ca3db7ed7cb	3006
tosihisa	9:9ca3db7ed7cb	3007	res = validate(dj->fs, dj->id); /* Check validity of the object */
tosihisa	9:9ca3db7ed7cb	3008	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3009	if (!fno) {
tosihisa	9:9ca3db7ed7cb	3010	res = dir_sdi(dj, 0); /* Rewind the directory object */
tosihisa	9:9ca3db7ed7cb	3011	} else {
tosihisa	9:9ca3db7ed7cb	3012	INIT_BUF(*dj);
tosihisa	9:9ca3db7ed7cb	3013	res = dir_read(dj); /* Read an directory item */
tosihisa	9:9ca3db7ed7cb	3014	if (res == FR_NO_FILE) { /* Reached end of dir */
tosihisa	9:9ca3db7ed7cb	3015	dj->sect = 0;
tosihisa	9:9ca3db7ed7cb	3016	res = FR_OK;
tosihisa	9:9ca3db7ed7cb	3017	}
tosihisa	9:9ca3db7ed7cb	3018	if (res == FR_OK) { /* A valid entry is found */
tosihisa	9:9ca3db7ed7cb	3019	get_fileinfo(dj, fno); /* Get the object information */
tosihisa	9:9ca3db7ed7cb	3020	res = dir_next(dj, 0); /* Increment index for next */
tosihisa	9:9ca3db7ed7cb	3021	if (res == FR_NO_FILE) {
tosihisa	9:9ca3db7ed7cb	3022	dj->sect = 0;
tosihisa	9:9ca3db7ed7cb	3023	res = FR_OK;
tosihisa	9:9ca3db7ed7cb	3024	}
tosihisa	9:9ca3db7ed7cb	3025	}
tosihisa	9:9ca3db7ed7cb	3026	FREE_BUF();
tosihisa	9:9ca3db7ed7cb	3027	}
tosihisa	9:9ca3db7ed7cb	3028	}
tosihisa	9:9ca3db7ed7cb	3029
tosihisa	9:9ca3db7ed7cb	3030	LEAVE_FF(dj->fs, res);
tosihisa	9:9ca3db7ed7cb	3031	}
tosihisa	9:9ca3db7ed7cb	3032
tosihisa	9:9ca3db7ed7cb	3033
tosihisa	9:9ca3db7ed7cb	3034
tosihisa	9:9ca3db7ed7cb	3035	#if _FS_MINIMIZE == 0
tosihisa	9:9ca3db7ed7cb	3036	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3037	/* Get File Status */
tosihisa	9:9ca3db7ed7cb	3038	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3039
tosihisa	9:9ca3db7ed7cb	3040	FRESULT f_stat (
tosihisa	9:9ca3db7ed7cb	3041	const TCHAR path, / Pointer to the file path */
tosihisa	9:9ca3db7ed7cb	3042	FILINFO fno / Pointer to file information to return */
tosihisa	9:9ca3db7ed7cb	3043	)
tosihisa	9:9ca3db7ed7cb	3044	{
tosihisa	9:9ca3db7ed7cb	3045	FRESULT res;
tosihisa	9:9ca3db7ed7cb	3046	DIR_t dj;
tosihisa	9:9ca3db7ed7cb	3047	DEF_NAMEBUF;
tosihisa	9:9ca3db7ed7cb	3048
tosihisa	9:9ca3db7ed7cb	3049
tosihisa	9:9ca3db7ed7cb	3050	res = chk_mounted(&path, &dj.fs, 0);
tosihisa	9:9ca3db7ed7cb	3051	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3052	INIT_BUF(dj);
tosihisa	9:9ca3db7ed7cb	3053	res = follow_path(&dj, path); /* Follow the file path */
tosihisa	9:9ca3db7ed7cb	3054	if (res == FR_OK) { /* Follow completed */
tosihisa	9:9ca3db7ed7cb	3055	if (dj.dir) /* Found an object */
tosihisa	9:9ca3db7ed7cb	3056	get_fileinfo(&dj, fno);
tosihisa	9:9ca3db7ed7cb	3057	else /* It is root dir */
tosihisa	9:9ca3db7ed7cb	3058	res = FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	3059	}
tosihisa	9:9ca3db7ed7cb	3060	FREE_BUF();
tosihisa	9:9ca3db7ed7cb	3061	}
tosihisa	9:9ca3db7ed7cb	3062
tosihisa	9:9ca3db7ed7cb	3063	LEAVE_FF(dj.fs, res);
tosihisa	9:9ca3db7ed7cb	3064	}
tosihisa	9:9ca3db7ed7cb	3065
tosihisa	9:9ca3db7ed7cb	3066
tosihisa	9:9ca3db7ed7cb	3067
tosihisa	9:9ca3db7ed7cb	3068	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	3069	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3070	/* Get Number of Free Clusters */
tosihisa	9:9ca3db7ed7cb	3071	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3072
tosihisa	9:9ca3db7ed7cb	3073	FRESULT f_getfree (
tosihisa	9:9ca3db7ed7cb	3074	const TCHAR path, / Pointer to the logical drive number (root dir) */
tosihisa	9:9ca3db7ed7cb	3075	DWORD nclst, / Pointer to the variable to return number of free clusters */
tosihisa	9:9ca3db7ed7cb	3076	FATFS *fatfs / Pointer to pointer to corresponding file system object to return */
tosihisa	9:9ca3db7ed7cb	3077	)
tosihisa	9:9ca3db7ed7cb	3078	{
tosihisa	9:9ca3db7ed7cb	3079	FRESULT res;
tosihisa	9:9ca3db7ed7cb	3080	DWORD n, clst, sect, stat;
tosihisa	9:9ca3db7ed7cb	3081	UINT i;
tosihisa	9:9ca3db7ed7cb	3082	BYTE fat, *p;
tosihisa	9:9ca3db7ed7cb	3083
tosihisa	9:9ca3db7ed7cb	3084
tosihisa	9:9ca3db7ed7cb	3085	/* Get drive number */
tosihisa	9:9ca3db7ed7cb	3086	res = chk_mounted(&path, fatfs, 0);
tosihisa	9:9ca3db7ed7cb	3087	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3088	/* If free_clust is valid, return it without full cluster scan */
tosihisa	9:9ca3db7ed7cb	3089	if ((fatfs)->free_clust <= (fatfs)->n_fatent - 2) {
tosihisa	9:9ca3db7ed7cb	3090	nclst = (fatfs)->free_clust;
tosihisa	9:9ca3db7ed7cb	3091	} else {
tosihisa	9:9ca3db7ed7cb	3092	/* Get number of free clusters */
tosihisa	9:9ca3db7ed7cb	3093	fat = (*fatfs)->fs_type;
tosihisa	9:9ca3db7ed7cb	3094	n = 0;
tosihisa	9:9ca3db7ed7cb	3095	if (fat == FS_FAT12) {
tosihisa	9:9ca3db7ed7cb	3096	clst = 2;
tosihisa	9:9ca3db7ed7cb	3097	do {
tosihisa	9:9ca3db7ed7cb	3098	stat = get_fat(*fatfs, clst);
tosihisa	9:9ca3db7ed7cb	3099	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
tosihisa	9:9ca3db7ed7cb	3100	if (stat == 1) { res = FR_INT_ERR; break; }
tosihisa	9:9ca3db7ed7cb	3101	if (stat == 0) n++;
tosihisa	9:9ca3db7ed7cb	3102	} while (++clst < (*fatfs)->n_fatent);
tosihisa	9:9ca3db7ed7cb	3103	} else {
tosihisa	9:9ca3db7ed7cb	3104	clst = (*fatfs)->n_fatent;
tosihisa	9:9ca3db7ed7cb	3105	sect = (*fatfs)->fatbase;
tosihisa	9:9ca3db7ed7cb	3106	i = 0; p = 0;
tosihisa	9:9ca3db7ed7cb	3107	do {
tosihisa	9:9ca3db7ed7cb	3108	if (!i) {
tosihisa	9:9ca3db7ed7cb	3109	res = move_window(*fatfs, sect++);
tosihisa	9:9ca3db7ed7cb	3110	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	3111	p = (*fatfs)->win;
tosihisa	9:9ca3db7ed7cb	3112	i = SS(*fatfs);
tosihisa	9:9ca3db7ed7cb	3113	}
tosihisa	9:9ca3db7ed7cb	3114	if (fat == FS_FAT16) {
tosihisa	9:9ca3db7ed7cb	3115	if (LD_WORD(p) == 0) n++;
tosihisa	9:9ca3db7ed7cb	3116	p += 2; i -= 2;
tosihisa	9:9ca3db7ed7cb	3117	} else {
tosihisa	9:9ca3db7ed7cb	3118	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
tosihisa	9:9ca3db7ed7cb	3119	p += 4; i -= 4;
tosihisa	9:9ca3db7ed7cb	3120	}
tosihisa	9:9ca3db7ed7cb	3121	} while (--clst);
tosihisa	9:9ca3db7ed7cb	3122	}
tosihisa	9:9ca3db7ed7cb	3123	(*fatfs)->free_clust = n;
tosihisa	9:9ca3db7ed7cb	3124	if (fat == FS_FAT32) (*fatfs)->fsi_flag = 1;
tosihisa	9:9ca3db7ed7cb	3125	*nclst = n;
tosihisa	9:9ca3db7ed7cb	3126	}
tosihisa	9:9ca3db7ed7cb	3127	}
tosihisa	9:9ca3db7ed7cb	3128	LEAVE_FF(*fatfs, res);
tosihisa	9:9ca3db7ed7cb	3129	}
tosihisa	9:9ca3db7ed7cb	3130
tosihisa	9:9ca3db7ed7cb	3131
tosihisa	9:9ca3db7ed7cb	3132
tosihisa	9:9ca3db7ed7cb	3133
tosihisa	9:9ca3db7ed7cb	3134	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3135	/* Truncate File */
tosihisa	9:9ca3db7ed7cb	3136	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3137
tosihisa	9:9ca3db7ed7cb	3138	FRESULT f_truncate (
tosihisa	9:9ca3db7ed7cb	3139	FIL_t fp / Pointer to the file object */
tosihisa	9:9ca3db7ed7cb	3140	)
tosihisa	9:9ca3db7ed7cb	3141	{
tosihisa	9:9ca3db7ed7cb	3142	FRESULT res;
tosihisa	9:9ca3db7ed7cb	3143	DWORD ncl;
tosihisa	9:9ca3db7ed7cb	3144
tosihisa	9:9ca3db7ed7cb	3145
tosihisa	9:9ca3db7ed7cb	3146	res = validate(fp->fs, fp->id); /* Check validity of the object */
tosihisa	9:9ca3db7ed7cb	3147	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3148	if (fp->flag & FA__ERROR) { /* Check abort flag */
tosihisa	9:9ca3db7ed7cb	3149	res = FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	3150	} else {
tosihisa	9:9ca3db7ed7cb	3151	if (!(fp->flag & FA_WRITE)) /* Check access mode */
tosihisa	9:9ca3db7ed7cb	3152	res = FR_DENIED;
tosihisa	9:9ca3db7ed7cb	3153	}
tosihisa	9:9ca3db7ed7cb	3154	}
tosihisa	9:9ca3db7ed7cb	3155	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3156	if (fp->fsize > fp->fptr) {
tosihisa	9:9ca3db7ed7cb	3157	fp->fsize = fp->fptr; /* Set file size to current R/W point */
tosihisa	9:9ca3db7ed7cb	3158	fp->flag \|= FA__WRITTEN;
tosihisa	9:9ca3db7ed7cb	3159	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
tosihisa	9:9ca3db7ed7cb	3160	res = remove_chain(fp->fs, fp->sclust);
tosihisa	9:9ca3db7ed7cb	3161	fp->sclust = 0;
tosihisa	9:9ca3db7ed7cb	3162	} else { /* When truncate a part of the file, remove remaining clusters */
tosihisa	9:9ca3db7ed7cb	3163	ncl = get_fat(fp->fs, fp->clust);
tosihisa	9:9ca3db7ed7cb	3164	res = FR_OK;
tosihisa	9:9ca3db7ed7cb	3165	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	3166	if (ncl == 1) res = FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	3167	if (res == FR_OK && ncl < fp->fs->n_fatent) {
tosihisa	9:9ca3db7ed7cb	3168	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
tosihisa	9:9ca3db7ed7cb	3169	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
tosihisa	9:9ca3db7ed7cb	3170	}
tosihisa	9:9ca3db7ed7cb	3171	}
tosihisa	9:9ca3db7ed7cb	3172	}
tosihisa	9:9ca3db7ed7cb	3173	if (res != FR_OK) fp->flag \|= FA__ERROR;
tosihisa	9:9ca3db7ed7cb	3174	}
tosihisa	9:9ca3db7ed7cb	3175
tosihisa	9:9ca3db7ed7cb	3176	LEAVE_FF(fp->fs, res);
tosihisa	9:9ca3db7ed7cb	3177	}
tosihisa	9:9ca3db7ed7cb	3178
tosihisa	9:9ca3db7ed7cb	3179
tosihisa	9:9ca3db7ed7cb	3180
tosihisa	9:9ca3db7ed7cb	3181
tosihisa	9:9ca3db7ed7cb	3182	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3183	/* Delete a File or Directory */
tosihisa	9:9ca3db7ed7cb	3184	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3185
tosihisa	9:9ca3db7ed7cb	3186	FRESULT f_unlink (
tosihisa	9:9ca3db7ed7cb	3187	const TCHAR path / Pointer to the file or directory path */
tosihisa	9:9ca3db7ed7cb	3188	)
tosihisa	9:9ca3db7ed7cb	3189	{
tosihisa	9:9ca3db7ed7cb	3190	FRESULT res;
tosihisa	9:9ca3db7ed7cb	3191	DIR_t dj, sdj;
tosihisa	9:9ca3db7ed7cb	3192	BYTE *dir;
tosihisa	9:9ca3db7ed7cb	3193	DWORD dclst;
tosihisa	9:9ca3db7ed7cb	3194	DEF_NAMEBUF;
tosihisa	9:9ca3db7ed7cb	3195
tosihisa	9:9ca3db7ed7cb	3196
tosihisa	9:9ca3db7ed7cb	3197	res = chk_mounted(&path, &dj.fs, 1);
tosihisa	9:9ca3db7ed7cb	3198	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3199	INIT_BUF(dj);
tosihisa	9:9ca3db7ed7cb	3200	res = follow_path(&dj, path); /* Follow the file path */
tosihisa	9:9ca3db7ed7cb	3201	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
tosihisa	9:9ca3db7ed7cb	3202	res = FR_INVALID_NAME; /* Cannot remove dot entry */
tosihisa	9:9ca3db7ed7cb	3203	#if _FS_SHARE
tosihisa	9:9ca3db7ed7cb	3204	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open file */
tosihisa	9:9ca3db7ed7cb	3205	#endif
tosihisa	9:9ca3db7ed7cb	3206	if (res == FR_OK) { /* The object is accessible */
tosihisa	9:9ca3db7ed7cb	3207	dir = dj.dir;
tosihisa	9:9ca3db7ed7cb	3208	if (!dir) {
tosihisa	9:9ca3db7ed7cb	3209	res = FR_INVALID_NAME; /* Cannot remove the start directory */
tosihisa	9:9ca3db7ed7cb	3210	} else {
tosihisa	9:9ca3db7ed7cb	3211	if (dir[DIR_Attr] & AM_RDO)
tosihisa	9:9ca3db7ed7cb	3212	res = FR_DENIED; /* Cannot remove R/O object */
tosihisa	9:9ca3db7ed7cb	3213	}
tosihisa	9:9ca3db7ed7cb	3214	dclst = LD_CLUST(dir);
tosihisa	9:9ca3db7ed7cb	3215	if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-dir? */
tosihisa	9:9ca3db7ed7cb	3216	if (dclst < 2) {
tosihisa	9:9ca3db7ed7cb	3217	res = FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	3218	} else {
tosihisa	9:9ca3db7ed7cb	3219	mem_cpy(&sdj, &dj, sizeof(DIR_t)); /* Check if the sub-dir is empty or not */
tosihisa	9:9ca3db7ed7cb	3220	sdj.sclust = dclst;
tosihisa	9:9ca3db7ed7cb	3221	res = dir_sdi(&sdj, 2); /* Exclude dot entries */
tosihisa	9:9ca3db7ed7cb	3222	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3223	res = dir_read(&sdj);
tosihisa	9:9ca3db7ed7cb	3224	if (res == FR_OK /* Not empty dir */
tosihisa	9:9ca3db7ed7cb	3225	#if _FS_RPATH
tosihisa	9:9ca3db7ed7cb	3226	\|\| dclst == sdj.fs->cdir /* Current dir */
tosihisa	9:9ca3db7ed7cb	3227	#endif
tosihisa	9:9ca3db7ed7cb	3228	) res = FR_DENIED;
tosihisa	9:9ca3db7ed7cb	3229	if (res == FR_NO_FILE) res = FR_OK; /* Empty */
tosihisa	9:9ca3db7ed7cb	3230	}
tosihisa	9:9ca3db7ed7cb	3231	}
tosihisa	9:9ca3db7ed7cb	3232	}
tosihisa	9:9ca3db7ed7cb	3233	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3234	res = dir_remove(&dj); /* Remove the directory entry */
tosihisa	9:9ca3db7ed7cb	3235	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3236	if (dclst) /* Remove the cluster chain if exist */
tosihisa	9:9ca3db7ed7cb	3237	res = remove_chain(dj.fs, dclst);
tosihisa	9:9ca3db7ed7cb	3238	if (res == FR_OK) res = sync(dj.fs);
tosihisa	9:9ca3db7ed7cb	3239	}
tosihisa	9:9ca3db7ed7cb	3240	}
tosihisa	9:9ca3db7ed7cb	3241	}
tosihisa	9:9ca3db7ed7cb	3242	FREE_BUF();
tosihisa	9:9ca3db7ed7cb	3243	}
tosihisa	9:9ca3db7ed7cb	3244	LEAVE_FF(dj.fs, res);
tosihisa	9:9ca3db7ed7cb	3245	}
tosihisa	9:9ca3db7ed7cb	3246
tosihisa	9:9ca3db7ed7cb	3247
tosihisa	9:9ca3db7ed7cb	3248
tosihisa	9:9ca3db7ed7cb	3249
tosihisa	9:9ca3db7ed7cb	3250	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3251	/* Create a Directory */
tosihisa	9:9ca3db7ed7cb	3252	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3253
tosihisa	9:9ca3db7ed7cb	3254	FRESULT f_mkdir (
tosihisa	9:9ca3db7ed7cb	3255	const TCHAR path / Pointer to the directory path */
tosihisa	9:9ca3db7ed7cb	3256	)
tosihisa	9:9ca3db7ed7cb	3257	{
tosihisa	9:9ca3db7ed7cb	3258	FRESULT res;
tosihisa	9:9ca3db7ed7cb	3259	DIR_t dj;
tosihisa	9:9ca3db7ed7cb	3260	BYTE *dir, n;
tosihisa	9:9ca3db7ed7cb	3261	DWORD dsc, dcl, pcl, tim = get_fattime();
tosihisa	9:9ca3db7ed7cb	3262	DEF_NAMEBUF;
tosihisa	9:9ca3db7ed7cb	3263
tosihisa	9:9ca3db7ed7cb	3264
tosihisa	9:9ca3db7ed7cb	3265	res = chk_mounted(&path, &dj.fs, 1);
tosihisa	9:9ca3db7ed7cb	3266	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3267	INIT_BUF(dj);
tosihisa	9:9ca3db7ed7cb	3268	res = follow_path(&dj, path); /* Follow the file path */
tosihisa	9:9ca3db7ed7cb	3269	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
tosihisa	9:9ca3db7ed7cb	3270	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
tosihisa	9:9ca3db7ed7cb	3271	res = FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	3272	if (res == FR_NO_FILE) { /* Can create a new directory */
tosihisa	9:9ca3db7ed7cb	3273	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
tosihisa	9:9ca3db7ed7cb	3274	res = FR_OK;
tosihisa	9:9ca3db7ed7cb	3275	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
tosihisa	9:9ca3db7ed7cb	3276	if (dcl == 1) res = FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	3277	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	3278	if (res == FR_OK) /* Flush FAT */
tosihisa	9:9ca3db7ed7cb	3279	res = move_window(dj.fs, 0);
tosihisa	9:9ca3db7ed7cb	3280	if (res == FR_OK) { /* Initialize the new directory table */
tosihisa	9:9ca3db7ed7cb	3281	dsc = clust2sect(dj.fs, dcl);
tosihisa	9:9ca3db7ed7cb	3282	dir = dj.fs->win;
tosihisa	9:9ca3db7ed7cb	3283	mem_set(dir, 0, SS(dj.fs));
tosihisa	9:9ca3db7ed7cb	3284	mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */
tosihisa	9:9ca3db7ed7cb	3285	dir[DIR_Name] = '.';
tosihisa	9:9ca3db7ed7cb	3286	dir[DIR_Attr] = AM_DIR;
tosihisa	9:9ca3db7ed7cb	3287	ST_DWORD(dir+DIR_WrtTime, tim);
tosihisa	9:9ca3db7ed7cb	3288	ST_CLUST(dir, dcl);
tosihisa	9:9ca3db7ed7cb	3289	mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
tosihisa	9:9ca3db7ed7cb	3290	dir[33] = '.'; pcl = dj.sclust;
tosihisa	9:9ca3db7ed7cb	3291	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
tosihisa	9:9ca3db7ed7cb	3292	pcl = 0;
tosihisa	9:9ca3db7ed7cb	3293	ST_CLUST(dir+SZ_DIR, pcl);
tosihisa	9:9ca3db7ed7cb	3294	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
tosihisa	9:9ca3db7ed7cb	3295	dj.fs->winsect = dsc++;
tosihisa	9:9ca3db7ed7cb	3296	dj.fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	3297	res = move_window(dj.fs, 0);
tosihisa	9:9ca3db7ed7cb	3298	if (res != FR_OK) break;
tosihisa	9:9ca3db7ed7cb	3299	mem_set(dir, 0, SS(dj.fs));
tosihisa	9:9ca3db7ed7cb	3300	}
tosihisa	9:9ca3db7ed7cb	3301	}
tosihisa	9:9ca3db7ed7cb	3302	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
tosihisa	9:9ca3db7ed7cb	3303	if (res != FR_OK) {
tosihisa	9:9ca3db7ed7cb	3304	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
tosihisa	9:9ca3db7ed7cb	3305	} else {
tosihisa	9:9ca3db7ed7cb	3306	dir = dj.dir;
tosihisa	9:9ca3db7ed7cb	3307	dir[DIR_Attr] = AM_DIR; /* Attribute */
tosihisa	9:9ca3db7ed7cb	3308	ST_DWORD(dir+DIR_WrtTime, tim); /* Created time */
tosihisa	9:9ca3db7ed7cb	3309	ST_CLUST(dir, dcl); /* Table start cluster */
tosihisa	9:9ca3db7ed7cb	3310	dj.fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	3311	res = sync(dj.fs);
tosihisa	9:9ca3db7ed7cb	3312	}
tosihisa	9:9ca3db7ed7cb	3313	}
tosihisa	9:9ca3db7ed7cb	3314	FREE_BUF();
tosihisa	9:9ca3db7ed7cb	3315	}
tosihisa	9:9ca3db7ed7cb	3316
tosihisa	9:9ca3db7ed7cb	3317	LEAVE_FF(dj.fs, res);
tosihisa	9:9ca3db7ed7cb	3318	}
tosihisa	9:9ca3db7ed7cb	3319
tosihisa	9:9ca3db7ed7cb	3320
tosihisa	9:9ca3db7ed7cb	3321
tosihisa	9:9ca3db7ed7cb	3322
tosihisa	9:9ca3db7ed7cb	3323	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3324	/* Change Attribute */
tosihisa	9:9ca3db7ed7cb	3325	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3326
tosihisa	9:9ca3db7ed7cb	3327	FRESULT f_chmod (
tosihisa	9:9ca3db7ed7cb	3328	const TCHAR path, / Pointer to the file path */
tosihisa	9:9ca3db7ed7cb	3329	BYTE value, /* Attribute bits */
tosihisa	9:9ca3db7ed7cb	3330	BYTE mask /* Attribute mask to change */
tosihisa	9:9ca3db7ed7cb	3331	)
tosihisa	9:9ca3db7ed7cb	3332	{
tosihisa	9:9ca3db7ed7cb	3333	FRESULT res;
tosihisa	9:9ca3db7ed7cb	3334	DIR_t dj;
tosihisa	9:9ca3db7ed7cb	3335	BYTE *dir;
tosihisa	9:9ca3db7ed7cb	3336	DEF_NAMEBUF;
tosihisa	9:9ca3db7ed7cb	3337
tosihisa	9:9ca3db7ed7cb	3338
tosihisa	9:9ca3db7ed7cb	3339	res = chk_mounted(&path, &dj.fs, 1);
tosihisa	9:9ca3db7ed7cb	3340	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3341	INIT_BUF(dj);
tosihisa	9:9ca3db7ed7cb	3342	res = follow_path(&dj, path); /* Follow the file path */
tosihisa	9:9ca3db7ed7cb	3343	FREE_BUF();
tosihisa	9:9ca3db7ed7cb	3344	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
tosihisa	9:9ca3db7ed7cb	3345	res = FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	3346	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3347	dir = dj.dir;
tosihisa	9:9ca3db7ed7cb	3348	if (!dir) { /* Is it a root directory? */
tosihisa	9:9ca3db7ed7cb	3349	res = FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	3350	} else { /* File or sub directory */
tosihisa	9:9ca3db7ed7cb	3351	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
tosihisa	9:9ca3db7ed7cb	3352	dir[DIR_Attr] = (value & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
tosihisa	9:9ca3db7ed7cb	3353	dj.fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	3354	res = sync(dj.fs);
tosihisa	9:9ca3db7ed7cb	3355	}
tosihisa	9:9ca3db7ed7cb	3356	}
tosihisa	9:9ca3db7ed7cb	3357	}
tosihisa	9:9ca3db7ed7cb	3358
tosihisa	9:9ca3db7ed7cb	3359	LEAVE_FF(dj.fs, res);
tosihisa	9:9ca3db7ed7cb	3360	}
tosihisa	9:9ca3db7ed7cb	3361
tosihisa	9:9ca3db7ed7cb	3362
tosihisa	9:9ca3db7ed7cb	3363
tosihisa	9:9ca3db7ed7cb	3364
tosihisa	9:9ca3db7ed7cb	3365	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3366	/* Change Timestamp */
tosihisa	9:9ca3db7ed7cb	3367	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3368
tosihisa	9:9ca3db7ed7cb	3369	FRESULT f_utime (
tosihisa	9:9ca3db7ed7cb	3370	const TCHAR path, / Pointer to the file/directory name */
tosihisa	9:9ca3db7ed7cb	3371	const FILINFO fno / Pointer to the time stamp to be set */
tosihisa	9:9ca3db7ed7cb	3372	)
tosihisa	9:9ca3db7ed7cb	3373	{
tosihisa	9:9ca3db7ed7cb	3374	FRESULT res;
tosihisa	9:9ca3db7ed7cb	3375	DIR_t dj;
tosihisa	9:9ca3db7ed7cb	3376	BYTE *dir;
tosihisa	9:9ca3db7ed7cb	3377	DEF_NAMEBUF;
tosihisa	9:9ca3db7ed7cb	3378
tosihisa	9:9ca3db7ed7cb	3379
tosihisa	9:9ca3db7ed7cb	3380	res = chk_mounted(&path, &dj.fs, 1);
tosihisa	9:9ca3db7ed7cb	3381	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3382	INIT_BUF(dj);
tosihisa	9:9ca3db7ed7cb	3383	res = follow_path(&dj, path); /* Follow the file path */
tosihisa	9:9ca3db7ed7cb	3384	FREE_BUF();
tosihisa	9:9ca3db7ed7cb	3385	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
tosihisa	9:9ca3db7ed7cb	3386	res = FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	3387	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3388	dir = dj.dir;
tosihisa	9:9ca3db7ed7cb	3389	if (!dir) { /* Root directory */
tosihisa	9:9ca3db7ed7cb	3390	res = FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	3391	} else { /* File or sub-directory */
tosihisa	9:9ca3db7ed7cb	3392	ST_WORD(dir+DIR_WrtTime, fno->ftime);
tosihisa	9:9ca3db7ed7cb	3393	ST_WORD(dir+DIR_WrtDate, fno->fdate);
tosihisa	9:9ca3db7ed7cb	3394	dj.fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	3395	res = sync(dj.fs);
tosihisa	9:9ca3db7ed7cb	3396	}
tosihisa	9:9ca3db7ed7cb	3397	}
tosihisa	9:9ca3db7ed7cb	3398	}
tosihisa	9:9ca3db7ed7cb	3399
tosihisa	9:9ca3db7ed7cb	3400	LEAVE_FF(dj.fs, res);
tosihisa	9:9ca3db7ed7cb	3401	}
tosihisa	9:9ca3db7ed7cb	3402
tosihisa	9:9ca3db7ed7cb	3403
tosihisa	9:9ca3db7ed7cb	3404
tosihisa	9:9ca3db7ed7cb	3405
tosihisa	9:9ca3db7ed7cb	3406	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3407	/* Rename File/Directory */
tosihisa	9:9ca3db7ed7cb	3408	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3409
tosihisa	9:9ca3db7ed7cb	3410	FRESULT f_rename (
tosihisa	9:9ca3db7ed7cb	3411	const TCHAR path_old, / Pointer to the old name */
tosihisa	9:9ca3db7ed7cb	3412	const TCHAR path_new / Pointer to the new name */
tosihisa	9:9ca3db7ed7cb	3413	)
tosihisa	9:9ca3db7ed7cb	3414	{
tosihisa	9:9ca3db7ed7cb	3415	FRESULT res;
tosihisa	9:9ca3db7ed7cb	3416	DIR_t djo, djn;
tosihisa	9:9ca3db7ed7cb	3417	BYTE buf[21], *dir;
tosihisa	9:9ca3db7ed7cb	3418	DWORD dw;
tosihisa	9:9ca3db7ed7cb	3419	DEF_NAMEBUF;
tosihisa	9:9ca3db7ed7cb	3420
tosihisa	9:9ca3db7ed7cb	3421
tosihisa	9:9ca3db7ed7cb	3422	res = chk_mounted(&path_old, &djo.fs, 1);
tosihisa	9:9ca3db7ed7cb	3423	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3424	djn.fs = djo.fs;
tosihisa	9:9ca3db7ed7cb	3425	INIT_BUF(djo);
tosihisa	9:9ca3db7ed7cb	3426	res = follow_path(&djo, path_old); /* Check old object */
tosihisa	9:9ca3db7ed7cb	3427	if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
tosihisa	9:9ca3db7ed7cb	3428	res = FR_INVALID_NAME;
tosihisa	9:9ca3db7ed7cb	3429	#if _FS_SHARE
tosihisa	9:9ca3db7ed7cb	3430	if (res == FR_OK) res = chk_lock(&djo, 2);
tosihisa	9:9ca3db7ed7cb	3431	#endif
tosihisa	9:9ca3db7ed7cb	3432	if (res == FR_OK) { /* Old object is found */
tosihisa	9:9ca3db7ed7cb	3433	if (!djo.dir) { /* Is root dir? */
tosihisa	9:9ca3db7ed7cb	3434	res = FR_NO_FILE;
tosihisa	9:9ca3db7ed7cb	3435	} else {
tosihisa	9:9ca3db7ed7cb	3436	mem_cpy(buf, djo.dir+DIR_Attr, 21); /* Save the object information except for name */
tosihisa	9:9ca3db7ed7cb	3437	mem_cpy(&djn, &djo, sizeof(DIR_t)); /* Check new object */
tosihisa	9:9ca3db7ed7cb	3438	res = follow_path(&djn, path_new);
tosihisa	9:9ca3db7ed7cb	3439	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
tosihisa	9:9ca3db7ed7cb	3440	if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
tosihisa	9:9ca3db7ed7cb	3441	/* Start critical section that any interruption or error can cause cross-link */
tosihisa	9:9ca3db7ed7cb	3442	res = dir_register(&djn); /* Register the new entry */
tosihisa	9:9ca3db7ed7cb	3443	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3444	dir = djn.dir; /* Copy object information except for name */
tosihisa	9:9ca3db7ed7cb	3445	mem_cpy(dir+13, buf+2, 19);
tosihisa	9:9ca3db7ed7cb	3446	dir[DIR_Attr] = buf[0] \| AM_ARC;
tosihisa	9:9ca3db7ed7cb	3447	djo.fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	3448	if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) { /* Update .. entry in the directory if needed */
tosihisa	9:9ca3db7ed7cb	3449	dw = clust2sect(djn.fs, LD_CLUST(dir));
tosihisa	9:9ca3db7ed7cb	3450	if (!dw) {
tosihisa	9:9ca3db7ed7cb	3451	res = FR_INT_ERR;
tosihisa	9:9ca3db7ed7cb	3452	} else {
tosihisa	9:9ca3db7ed7cb	3453	res = move_window(djn.fs, dw);
tosihisa	9:9ca3db7ed7cb	3454	dir = djn.fs->win+SZ_DIR; /* .. entry */
tosihisa	9:9ca3db7ed7cb	3455	if (res == FR_OK && dir[1] == '.') {
tosihisa	9:9ca3db7ed7cb	3456	dw = (djn.fs->fs_type == FS_FAT32 && djn.sclust == djn.fs->dirbase) ? 0 : djn.sclust;
tosihisa	9:9ca3db7ed7cb	3457	ST_CLUST(dir, dw);
tosihisa	9:9ca3db7ed7cb	3458	djn.fs->wflag = 1;
tosihisa	9:9ca3db7ed7cb	3459	}
tosihisa	9:9ca3db7ed7cb	3460	}
tosihisa	9:9ca3db7ed7cb	3461	}
tosihisa	9:9ca3db7ed7cb	3462	if (res == FR_OK) {
tosihisa	9:9ca3db7ed7cb	3463	res = dir_remove(&djo); /* Remove old entry */
tosihisa	9:9ca3db7ed7cb	3464	if (res == FR_OK)
tosihisa	9:9ca3db7ed7cb	3465	res = sync(djo.fs);
tosihisa	9:9ca3db7ed7cb	3466	}
tosihisa	9:9ca3db7ed7cb	3467	}
tosihisa	9:9ca3db7ed7cb	3468	/* End critical section */
tosihisa	9:9ca3db7ed7cb	3469	}
tosihisa	9:9ca3db7ed7cb	3470	}
tosihisa	9:9ca3db7ed7cb	3471	}
tosihisa	9:9ca3db7ed7cb	3472	FREE_BUF();
tosihisa	9:9ca3db7ed7cb	3473	}
tosihisa	9:9ca3db7ed7cb	3474	LEAVE_FF(djo.fs, res);
tosihisa	9:9ca3db7ed7cb	3475	}
tosihisa	9:9ca3db7ed7cb	3476
tosihisa	9:9ca3db7ed7cb	3477	#endif /* !_FS_READONLY */
tosihisa	9:9ca3db7ed7cb	3478	#endif /* _FS_MINIMIZE == 0 */
tosihisa	9:9ca3db7ed7cb	3479	#endif /* _FS_MINIMIZE <= 1 */
tosihisa	9:9ca3db7ed7cb	3480	#endif /* _FS_MINIMIZE <= 2 */
tosihisa	9:9ca3db7ed7cb	3481
tosihisa	9:9ca3db7ed7cb	3482
tosihisa	9:9ca3db7ed7cb	3483
tosihisa	9:9ca3db7ed7cb	3484	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3485	/* Forward data to the stream directly (available on only tiny cfg) */
tosihisa	9:9ca3db7ed7cb	3486	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3487	#if _USE_FORWARD && _FS_TINY
tosihisa	9:9ca3db7ed7cb	3488
tosihisa	9:9ca3db7ed7cb	3489	FRESULT f_forward (
tosihisa	9:9ca3db7ed7cb	3490	FIL_t fp, / Pointer to the file object */
tosihisa	9:9ca3db7ed7cb	3491	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
tosihisa	9:9ca3db7ed7cb	3492	UINT btr, /* Number of bytes to forward */
tosihisa	9:9ca3db7ed7cb	3493	UINT bf / Pointer to number of bytes forwarded */
tosihisa	9:9ca3db7ed7cb	3494	)
tosihisa	9:9ca3db7ed7cb	3495	{
tosihisa	9:9ca3db7ed7cb	3496	FRESULT res;
tosihisa	9:9ca3db7ed7cb	3497	DWORD remain, clst, sect;
tosihisa	9:9ca3db7ed7cb	3498	UINT rcnt;
tosihisa	9:9ca3db7ed7cb	3499	BYTE csect;
tosihisa	9:9ca3db7ed7cb	3500
tosihisa	9:9ca3db7ed7cb	3501
tosihisa	9:9ca3db7ed7cb	3502	bf = 0; / Initialize byte counter */
tosihisa	9:9ca3db7ed7cb	3503
tosihisa	9:9ca3db7ed7cb	3504	res = validate(fp->fs, fp->id); /* Check validity of the object */
tosihisa	9:9ca3db7ed7cb	3505	if (res != FR_OK) LEAVE_FF(fp->fs, res);
tosihisa	9:9ca3db7ed7cb	3506	if (fp->flag & FA__ERROR) /* Check error flag */
tosihisa	9:9ca3db7ed7cb	3507	LEAVE_FF(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	3508	if (!(fp->flag & FA_READ)) /* Check access mode */
tosihisa	9:9ca3db7ed7cb	3509	LEAVE_FF(fp->fs, FR_DENIED);
tosihisa	9:9ca3db7ed7cb	3510
tosihisa	9:9ca3db7ed7cb	3511	remain = fp->fsize - fp->fptr;
tosihisa	9:9ca3db7ed7cb	3512	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
tosihisa	9:9ca3db7ed7cb	3513
tosihisa	9:9ca3db7ed7cb	3514	for ( ; btr && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
tosihisa	9:9ca3db7ed7cb	3515	fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
tosihisa	9:9ca3db7ed7cb	3516	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
tosihisa	9:9ca3db7ed7cb	3517	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
tosihisa	9:9ca3db7ed7cb	3518	if (!csect) { /* On the cluster boundary? */
tosihisa	9:9ca3db7ed7cb	3519	clst = (fp->fptr == 0) ? /* On the top of the file? */
tosihisa	9:9ca3db7ed7cb	3520	fp->sclust : get_fat(fp->fs, fp->clust);
tosihisa	9:9ca3db7ed7cb	3521	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	3522	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	3523	fp->clust = clst; /* Update current cluster */
tosihisa	9:9ca3db7ed7cb	3524	}
tosihisa	9:9ca3db7ed7cb	3525	}
tosihisa	9:9ca3db7ed7cb	3526	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
tosihisa	9:9ca3db7ed7cb	3527	if (!sect) ABORT(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	3528	sect += csect;
tosihisa	9:9ca3db7ed7cb	3529	if (move_window(fp->fs, sect)) /* Move sector window */
tosihisa	9:9ca3db7ed7cb	3530	ABORT(fp->fs, FR_DISK_ERR);
tosihisa	9:9ca3db7ed7cb	3531	fp->dsect = sect;
tosihisa	9:9ca3db7ed7cb	3532	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
tosihisa	9:9ca3db7ed7cb	3533	if (rcnt > btr) rcnt = btr;
tosihisa	9:9ca3db7ed7cb	3534	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
tosihisa	9:9ca3db7ed7cb	3535	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
tosihisa	9:9ca3db7ed7cb	3536	}
tosihisa	9:9ca3db7ed7cb	3537
tosihisa	9:9ca3db7ed7cb	3538	LEAVE_FF(fp->fs, FR_OK);
tosihisa	9:9ca3db7ed7cb	3539	}
tosihisa	9:9ca3db7ed7cb	3540	#endif /* _USE_FORWARD */
tosihisa	9:9ca3db7ed7cb	3541
tosihisa	9:9ca3db7ed7cb	3542
tosihisa	9:9ca3db7ed7cb	3543
tosihisa	9:9ca3db7ed7cb	3544	#if _USE_MKFS && !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	3545	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3546	/* Create File System on the Drive */
tosihisa	9:9ca3db7ed7cb	3547	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3548	#define N_ROOTDIR 512 /* Number of root dir entries for FAT12/16 */
tosihisa	9:9ca3db7ed7cb	3549	#define N_FATS 1 /* Number of FAT copies (1 or 2) */
tosihisa	9:9ca3db7ed7cb	3550
tosihisa	9:9ca3db7ed7cb	3551
tosihisa	9:9ca3db7ed7cb	3552	FRESULT f_mkfs (
tosihisa	9:9ca3db7ed7cb	3553	BYTE drv, /* Logical drive number */
tosihisa	9:9ca3db7ed7cb	3554	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
tosihisa	9:9ca3db7ed7cb	3555	UINT au /* Allocation unit size [bytes] */
tosihisa	9:9ca3db7ed7cb	3556	)
tosihisa	9:9ca3db7ed7cb	3557	{
tosihisa	9:9ca3db7ed7cb	3558	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
tosihisa	9:9ca3db7ed7cb	3559	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
tosihisa	9:9ca3db7ed7cb	3560	BYTE fmt, md, *tbl;
tosihisa	9:9ca3db7ed7cb	3561	DWORD n_clst, vs, n, wsect;
tosihisa	9:9ca3db7ed7cb	3562	UINT i;
tosihisa	9:9ca3db7ed7cb	3563	DWORD b_vol, b_fat, b_dir, b_data; /* Offset (LBA) */
tosihisa	9:9ca3db7ed7cb	3564	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
tosihisa	9:9ca3db7ed7cb	3565	FATFS *fs;
tosihisa	9:9ca3db7ed7cb	3566	DSTATUS stat;
tosihisa	9:9ca3db7ed7cb	3567
tosihisa	9:9ca3db7ed7cb	3568
tosihisa	9:9ca3db7ed7cb	3569	/* Check mounted drive and clear work area */
tosihisa	9:9ca3db7ed7cb	3570	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
tosihisa	9:9ca3db7ed7cb	3571	fs = FatFs[drv];
tosihisa	9:9ca3db7ed7cb	3572	if (!fs) return FR_NOT_ENABLED;
tosihisa	9:9ca3db7ed7cb	3573	fs->fs_type = 0;
tosihisa	9:9ca3db7ed7cb	3574	drv = LD2PD(drv);
tosihisa	9:9ca3db7ed7cb	3575
tosihisa	9:9ca3db7ed7cb	3576	/* Get disk statics */
tosihisa	9:9ca3db7ed7cb	3577	stat = disk_initialize(drv);
tosihisa	9:9ca3db7ed7cb	3578	if (stat & STA_NOINIT) return FR_NOT_READY;
tosihisa	9:9ca3db7ed7cb	3579	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
tosihisa	9:9ca3db7ed7cb	3580	#if _MAX_SS != 512 /* Get disk sector size */
tosihisa	9:9ca3db7ed7cb	3581	if (disk_ioctl(drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK)
tosihisa	9:9ca3db7ed7cb	3582	return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	3583	#endif
tosihisa	9:9ca3db7ed7cb	3584	if (disk_ioctl(drv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
tosihisa	9:9ca3db7ed7cb	3585	return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	3586	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
tosihisa	9:9ca3db7ed7cb	3587	n_vol -= b_vol;
tosihisa	9:9ca3db7ed7cb	3588	if (au & (au - 1)) au = 0; /* Check validity of the AU size */
tosihisa	9:9ca3db7ed7cb	3589	if (!au) { /* AU auto selection */
tosihisa	9:9ca3db7ed7cb	3590	vs = n_vol / (2000 / (SS(fs) / 512));
tosihisa	9:9ca3db7ed7cb	3591	for (i = 0; vs < vst[i]; i++) ;
tosihisa	9:9ca3db7ed7cb	3592	au = cst[i];
tosihisa	9:9ca3db7ed7cb	3593	}
tosihisa	9:9ca3db7ed7cb	3594	au /= SS(fs); /* Number of sectors per cluster */
tosihisa	9:9ca3db7ed7cb	3595	if (au == 0) au = 1;
tosihisa	9:9ca3db7ed7cb	3596	if (au > 128) au = 128;
tosihisa	9:9ca3db7ed7cb	3597
tosihisa	9:9ca3db7ed7cb	3598	/* Pre-compute number of clusters and FAT syb-type */
tosihisa	9:9ca3db7ed7cb	3599	n_clst = n_vol / au;
tosihisa	9:9ca3db7ed7cb	3600	fmt = FS_FAT12;
tosihisa	9:9ca3db7ed7cb	3601	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
tosihisa	9:9ca3db7ed7cb	3602	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
tosihisa	9:9ca3db7ed7cb	3603
tosihisa	9:9ca3db7ed7cb	3604	/* Determine offset and size of FAT structure */
tosihisa	9:9ca3db7ed7cb	3605	if (fmt == FS_FAT32) {
tosihisa	9:9ca3db7ed7cb	3606	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
tosihisa	9:9ca3db7ed7cb	3607	n_rsv = 32;
tosihisa	9:9ca3db7ed7cb	3608	n_dir = 0;
tosihisa	9:9ca3db7ed7cb	3609	} else {
tosihisa	9:9ca3db7ed7cb	3610	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
tosihisa	9:9ca3db7ed7cb	3611	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
tosihisa	9:9ca3db7ed7cb	3612	n_rsv = 1;
tosihisa	9:9ca3db7ed7cb	3613	n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
tosihisa	9:9ca3db7ed7cb	3614	}
tosihisa	9:9ca3db7ed7cb	3615	b_fat = b_vol + n_rsv; /* FAT area start sector */
tosihisa	9:9ca3db7ed7cb	3616	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
tosihisa	9:9ca3db7ed7cb	3617	b_data = b_dir + n_dir; /* Data area start sector */
tosihisa	9:9ca3db7ed7cb	3618	if (n_vol < b_data + au) return FR_MKFS_ABORTED; /* Too small volume */
tosihisa	9:9ca3db7ed7cb	3619
tosihisa	9:9ca3db7ed7cb	3620	/* Align data start sector to erase block boundary (for flash memory media) */
tosihisa	9:9ca3db7ed7cb	3621	if (disk_ioctl(drv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
tosihisa	9:9ca3db7ed7cb	3622	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
tosihisa	9:9ca3db7ed7cb	3623	n = (n - b_data) / N_FATS;
tosihisa	9:9ca3db7ed7cb	3624	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
tosihisa	9:9ca3db7ed7cb	3625	n_rsv += n;
tosihisa	9:9ca3db7ed7cb	3626	b_fat += n;
tosihisa	9:9ca3db7ed7cb	3627	} else { /* FAT12/16: Expand FAT size */
tosihisa	9:9ca3db7ed7cb	3628	n_fat += n;
tosihisa	9:9ca3db7ed7cb	3629	}
tosihisa	9:9ca3db7ed7cb	3630
tosihisa	9:9ca3db7ed7cb	3631	/* Determine number of clusters and final check of validity of the FAT sub-type */
tosihisa	9:9ca3db7ed7cb	3632	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
tosihisa	9:9ca3db7ed7cb	3633	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
tosihisa	9:9ca3db7ed7cb	3634	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
tosihisa	9:9ca3db7ed7cb	3635	return FR_MKFS_ABORTED;
tosihisa	9:9ca3db7ed7cb	3636
tosihisa	9:9ca3db7ed7cb	3637	/* Create partition table if required */
tosihisa	9:9ca3db7ed7cb	3638	if (sfd) { /* No patition table (SFD) */
tosihisa	9:9ca3db7ed7cb	3639	md = 0xF0;
tosihisa	9:9ca3db7ed7cb	3640	} else { /* With patition table (FDISK) */
tosihisa	9:9ca3db7ed7cb	3641	DWORD n_disk = b_vol + n_vol;
tosihisa	9:9ca3db7ed7cb	3642
tosihisa	9:9ca3db7ed7cb	3643	mem_set(fs->win, 0, SS(fs));
tosihisa	9:9ca3db7ed7cb	3644	tbl = fs->win+MBR_Table;
tosihisa	9:9ca3db7ed7cb	3645	ST_DWORD(tbl, 0x00010180); /* Partition start in CHS */
tosihisa	9:9ca3db7ed7cb	3646	if (n_disk < 63UL * 255 * 1024) { /* Partition end in CHS */
tosihisa	9:9ca3db7ed7cb	3647	n_disk = n_disk / 63 / 255;
tosihisa	9:9ca3db7ed7cb	3648	tbl[7] = (BYTE)n_disk;
tosihisa	9:9ca3db7ed7cb	3649	tbl[6] = (BYTE)((n_disk >> 2) \| 63);
tosihisa	9:9ca3db7ed7cb	3650	} else {
tosihisa	9:9ca3db7ed7cb	3651	ST_WORD(&tbl[6], 0xFFFF); /* CHS saturated */
tosihisa	9:9ca3db7ed7cb	3652	}
tosihisa	9:9ca3db7ed7cb	3653	tbl[5] = 254;
tosihisa	9:9ca3db7ed7cb	3654	if (fmt != FS_FAT32) /* System ID */
tosihisa	9:9ca3db7ed7cb	3655	tbl[4] = (n_vol < 0x10000) ? 0x04 : 0x06;
tosihisa	9:9ca3db7ed7cb	3656	else
tosihisa	9:9ca3db7ed7cb	3657	tbl[4] = 0x0c;
tosihisa	9:9ca3db7ed7cb	3658	ST_DWORD(tbl+8, 63); /* Partition start in LBA */
tosihisa	9:9ca3db7ed7cb	3659	ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
tosihisa	9:9ca3db7ed7cb	3660	ST_WORD(fs->win+BS_55AA, 0xAA55); /* MBR signature */
tosihisa	9:9ca3db7ed7cb	3661	if (disk_write(drv, fs->win, 0, 1) != RES_OK) /* Put the MBR into first physical sector */
tosihisa	9:9ca3db7ed7cb	3662	return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	3663	md = 0xF8;
tosihisa	9:9ca3db7ed7cb	3664	}
tosihisa	9:9ca3db7ed7cb	3665
tosihisa	9:9ca3db7ed7cb	3666	/* Create volume boot record */
tosihisa	9:9ca3db7ed7cb	3667	tbl = fs->win; /* Clear sector */
tosihisa	9:9ca3db7ed7cb	3668	mem_set(tbl, 0, SS(fs));
tosihisa	9:9ca3db7ed7cb	3669	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
tosihisa	9:9ca3db7ed7cb	3670	i = SS(fs); /* Sector size */
tosihisa	9:9ca3db7ed7cb	3671	ST_WORD(tbl+BPB_BytsPerSec, i);
tosihisa	9:9ca3db7ed7cb	3672	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
tosihisa	9:9ca3db7ed7cb	3673	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
tosihisa	9:9ca3db7ed7cb	3674	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
tosihisa	9:9ca3db7ed7cb	3675	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of rootdir entries */
tosihisa	9:9ca3db7ed7cb	3676	ST_WORD(tbl+BPB_RootEntCnt, i);
tosihisa	9:9ca3db7ed7cb	3677	if (n_vol < 0x10000) { /* Number of total sectors */
tosihisa	9:9ca3db7ed7cb	3678	ST_WORD(tbl+BPB_TotSec16, n_vol);
tosihisa	9:9ca3db7ed7cb	3679	} else {
tosihisa	9:9ca3db7ed7cb	3680	ST_DWORD(tbl+BPB_TotSec32, n_vol);
tosihisa	9:9ca3db7ed7cb	3681	}
tosihisa	9:9ca3db7ed7cb	3682	tbl[BPB_Media] = md; /* Media descriptor */
tosihisa	9:9ca3db7ed7cb	3683	ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
tosihisa	9:9ca3db7ed7cb	3684	ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
tosihisa	9:9ca3db7ed7cb	3685	ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
tosihisa	9:9ca3db7ed7cb	3686	n = get_fattime(); /* Use current time as VSN */
tosihisa	9:9ca3db7ed7cb	3687	if (fmt == FS_FAT32) {
tosihisa	9:9ca3db7ed7cb	3688	ST_DWORD(tbl+BS_VolID32, n); /* VSN */
tosihisa	9:9ca3db7ed7cb	3689	ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
tosihisa	9:9ca3db7ed7cb	3690	ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
tosihisa	9:9ca3db7ed7cb	3691	ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (VBR+1) */
tosihisa	9:9ca3db7ed7cb	3692	ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
tosihisa	9:9ca3db7ed7cb	3693	tbl[BS_DrvNum32] = 0x80; /* Drive number */
tosihisa	9:9ca3db7ed7cb	3694	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
tosihisa	9:9ca3db7ed7cb	3695	mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
tosihisa	9:9ca3db7ed7cb	3696	} else {
tosihisa	9:9ca3db7ed7cb	3697	ST_DWORD(tbl+BS_VolID, n); /* VSN */
tosihisa	9:9ca3db7ed7cb	3698	ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
tosihisa	9:9ca3db7ed7cb	3699	tbl[BS_DrvNum] = 0x80; /* Drive number */
tosihisa	9:9ca3db7ed7cb	3700	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
tosihisa	9:9ca3db7ed7cb	3701	mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
tosihisa	9:9ca3db7ed7cb	3702	}
tosihisa	9:9ca3db7ed7cb	3703	ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
tosihisa	9:9ca3db7ed7cb	3704	if (disk_write(drv, tbl, b_vol, 1) != RES_OK) /* Write VBR */
tosihisa	9:9ca3db7ed7cb	3705	return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	3706	if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR+6) */
tosihisa	9:9ca3db7ed7cb	3707	disk_write(drv, tbl, b_vol + 6, 1);
tosihisa	9:9ca3db7ed7cb	3708
tosihisa	9:9ca3db7ed7cb	3709	/* Initialize FAT area */
tosihisa	9:9ca3db7ed7cb	3710	wsect = b_fat;
tosihisa	9:9ca3db7ed7cb	3711	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
tosihisa	9:9ca3db7ed7cb	3712	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
tosihisa	9:9ca3db7ed7cb	3713	n = md; /* Media descriptor byte */
tosihisa	9:9ca3db7ed7cb	3714	if (fmt != FS_FAT32) {
tosihisa	9:9ca3db7ed7cb	3715	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
tosihisa	9:9ca3db7ed7cb	3716	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
tosihisa	9:9ca3db7ed7cb	3717	} else {
tosihisa	9:9ca3db7ed7cb	3718	n \|= 0xFFFFFF00;
tosihisa	9:9ca3db7ed7cb	3719	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
tosihisa	9:9ca3db7ed7cb	3720	ST_DWORD(tbl+4, 0xFFFFFFFF);
tosihisa	9:9ca3db7ed7cb	3721	ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
tosihisa	9:9ca3db7ed7cb	3722	}
tosihisa	9:9ca3db7ed7cb	3723	if (disk_write(drv, tbl, wsect++, 1) != RES_OK)
tosihisa	9:9ca3db7ed7cb	3724	return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	3725	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
tosihisa	9:9ca3db7ed7cb	3726	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
tosihisa	9:9ca3db7ed7cb	3727	if (disk_write(drv, tbl, wsect++, 1) != RES_OK)
tosihisa	9:9ca3db7ed7cb	3728	return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	3729	}
tosihisa	9:9ca3db7ed7cb	3730	}
tosihisa	9:9ca3db7ed7cb	3731
tosihisa	9:9ca3db7ed7cb	3732	/* Initialize root directory */
tosihisa	9:9ca3db7ed7cb	3733	i = (fmt == FS_FAT32) ? au : n_dir;
tosihisa	9:9ca3db7ed7cb	3734	do {
tosihisa	9:9ca3db7ed7cb	3735	if (disk_write(drv, tbl, wsect++, 1) != RES_OK)
tosihisa	9:9ca3db7ed7cb	3736	return FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	3737	} while (--i);
tosihisa	9:9ca3db7ed7cb	3738
tosihisa	9:9ca3db7ed7cb	3739	#if _USE_ERASE /* Erase data area if needed */
tosihisa	9:9ca3db7ed7cb	3740	{
tosihisa	9:9ca3db7ed7cb	3741	DWORD eb[2];
tosihisa	9:9ca3db7ed7cb	3742
tosihisa	9:9ca3db7ed7cb	3743	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
tosihisa	9:9ca3db7ed7cb	3744	disk_ioctl(drv, CTRL_ERASE_SECTOR, eb);
tosihisa	9:9ca3db7ed7cb	3745	}
tosihisa	9:9ca3db7ed7cb	3746	#endif
tosihisa	9:9ca3db7ed7cb	3747
tosihisa	9:9ca3db7ed7cb	3748	/* Create FSInfo if needed */
tosihisa	9:9ca3db7ed7cb	3749	if (fmt == FS_FAT32) {
tosihisa	9:9ca3db7ed7cb	3750	ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
tosihisa	9:9ca3db7ed7cb	3751	ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
tosihisa	9:9ca3db7ed7cb	3752	ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
tosihisa	9:9ca3db7ed7cb	3753	ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
tosihisa	9:9ca3db7ed7cb	3754	ST_WORD(tbl+BS_55AA, 0xAA55);
tosihisa	9:9ca3db7ed7cb	3755	disk_write(drv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
tosihisa	9:9ca3db7ed7cb	3756	disk_write(drv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
tosihisa	9:9ca3db7ed7cb	3757	}
tosihisa	9:9ca3db7ed7cb	3758
tosihisa	9:9ca3db7ed7cb	3759	return (disk_ioctl(drv, CTRL_SYNC, (void*)0) == RES_OK) ? FR_OK : FR_DISK_ERR;
tosihisa	9:9ca3db7ed7cb	3760	}
tosihisa	9:9ca3db7ed7cb	3761
tosihisa	9:9ca3db7ed7cb	3762	#endif /* _USE_MKFS && !_FS_READONLY */
tosihisa	9:9ca3db7ed7cb	3763
tosihisa	9:9ca3db7ed7cb	3764
tosihisa	9:9ca3db7ed7cb	3765
tosihisa	9:9ca3db7ed7cb	3766
tosihisa	9:9ca3db7ed7cb	3767	#if _USE_STRFUNC
tosihisa	9:9ca3db7ed7cb	3768	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3769	/* Get a string from the file */
tosihisa	9:9ca3db7ed7cb	3770	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3771	TCHAR* f_gets (
tosihisa	9:9ca3db7ed7cb	3772	TCHAR* buff, /* Pointer to the string buffer to read */
tosihisa	9:9ca3db7ed7cb	3773	int len, /* Size of string buffer (characters) */
tosihisa	9:9ca3db7ed7cb	3774	FIL_t* fil /* Pointer to the file object */
tosihisa	9:9ca3db7ed7cb	3775	)
tosihisa	9:9ca3db7ed7cb	3776	{
tosihisa	9:9ca3db7ed7cb	3777	int n = 0;
tosihisa	9:9ca3db7ed7cb	3778	TCHAR c, *p = buff;
tosihisa	9:9ca3db7ed7cb	3779	BYTE s[2];
tosihisa	9:9ca3db7ed7cb	3780	UINT rc;
tosihisa	9:9ca3db7ed7cb	3781
tosihisa	9:9ca3db7ed7cb	3782
tosihisa	9:9ca3db7ed7cb	3783	while (n < len - 1) { /* Read bytes until buffer gets filled */
tosihisa	9:9ca3db7ed7cb	3784	f_read(fil, s, 1, &rc);
tosihisa	9:9ca3db7ed7cb	3785	if (rc != 1) break; /* Break on EOF or error */
tosihisa	9:9ca3db7ed7cb	3786	c = s[0];
tosihisa	9:9ca3db7ed7cb	3787	#if _LFN_UNICODE /* Read a character in UTF-8 encoding */
tosihisa	9:9ca3db7ed7cb	3788	if (c >= 0x80) {
tosihisa	9:9ca3db7ed7cb	3789	if (c < 0xC0) continue; /* Skip stray trailer */
tosihisa	9:9ca3db7ed7cb	3790	if (c < 0xE0) { /* Two-byte sequense */
tosihisa	9:9ca3db7ed7cb	3791	f_read(fil, s, 1, &rc);
tosihisa	9:9ca3db7ed7cb	3792	if (rc != 1) break;
tosihisa	9:9ca3db7ed7cb	3793	c = ((c & 0x1F) << 6) \| (s[0] & 0x3F);
tosihisa	9:9ca3db7ed7cb	3794	if (c < 0x80) c = '?';
tosihisa	9:9ca3db7ed7cb	3795	} else {
tosihisa	9:9ca3db7ed7cb	3796	if (c < 0xF0) { /* Three-byte sequense */
tosihisa	9:9ca3db7ed7cb	3797	f_read(fil, s, 2, &rc);
tosihisa	9:9ca3db7ed7cb	3798	if (rc != 2) break;
tosihisa	9:9ca3db7ed7cb	3799	c = (c << 12) \| ((s[0] & 0x3F) << 6) \| (s[1] & 0x3F);
tosihisa	9:9ca3db7ed7cb	3800	if (c < 0x800) c = '?';
tosihisa	9:9ca3db7ed7cb	3801	} else { /* Reject four-byte sequense */
tosihisa	9:9ca3db7ed7cb	3802	c = '?';
tosihisa	9:9ca3db7ed7cb	3803	}
tosihisa	9:9ca3db7ed7cb	3804	}
tosihisa	9:9ca3db7ed7cb	3805	}
tosihisa	9:9ca3db7ed7cb	3806	#endif
tosihisa	9:9ca3db7ed7cb	3807	#if _USE_STRFUNC >= 2
tosihisa	9:9ca3db7ed7cb	3808	if (c == '\r') continue; /* Strip '\r' */
tosihisa	9:9ca3db7ed7cb	3809	#endif
tosihisa	9:9ca3db7ed7cb	3810	*p++ = c;
tosihisa	9:9ca3db7ed7cb	3811	n++;
tosihisa	9:9ca3db7ed7cb	3812	if (c == '\n') break; /* Break on EOL */
tosihisa	9:9ca3db7ed7cb	3813	}
tosihisa	9:9ca3db7ed7cb	3814	*p = 0;
tosihisa	9:9ca3db7ed7cb	3815	return n ? buff : 0; /* When no data read (eof or error), return with error. */
tosihisa	9:9ca3db7ed7cb	3816	}
tosihisa	9:9ca3db7ed7cb	3817
tosihisa	9:9ca3db7ed7cb	3818
tosihisa	9:9ca3db7ed7cb	3819
tosihisa	9:9ca3db7ed7cb	3820	#if !_FS_READONLY
tosihisa	9:9ca3db7ed7cb	3821	#include <stdarg.h>
tosihisa	9:9ca3db7ed7cb	3822	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3823	/* Put a character to the file */
tosihisa	9:9ca3db7ed7cb	3824	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3825	int f_putc (
tosihisa	9:9ca3db7ed7cb	3826	TCHAR c, /* A character to be output */
tosihisa	9:9ca3db7ed7cb	3827	FIL_t* fil /* Pointer to the file object */
tosihisa	9:9ca3db7ed7cb	3828	)
tosihisa	9:9ca3db7ed7cb	3829	{
tosihisa	9:9ca3db7ed7cb	3830	UINT bw, btw;
tosihisa	9:9ca3db7ed7cb	3831	BYTE s[3];
tosihisa	9:9ca3db7ed7cb	3832
tosihisa	9:9ca3db7ed7cb	3833
tosihisa	9:9ca3db7ed7cb	3834	#if _USE_STRFUNC >= 2
tosihisa	9:9ca3db7ed7cb	3835	if (c == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */
tosihisa	9:9ca3db7ed7cb	3836	#endif
tosihisa	9:9ca3db7ed7cb	3837
tosihisa	9:9ca3db7ed7cb	3838	#if _LFN_UNICODE /* Write the character in UTF-8 encoding */
tosihisa	9:9ca3db7ed7cb	3839	if (c < 0x80) { /* 7-bit */
tosihisa	9:9ca3db7ed7cb	3840	s[0] = (BYTE)c;
tosihisa	9:9ca3db7ed7cb	3841	btw = 1;
tosihisa	9:9ca3db7ed7cb	3842	} else {
tosihisa	9:9ca3db7ed7cb	3843	if (c < 0x800) { /* 11-bit */
tosihisa	9:9ca3db7ed7cb	3844	s[0] = (BYTE)(0xC0 \| (c >> 6));
tosihisa	9:9ca3db7ed7cb	3845	s[1] = (BYTE)(0x80 \| (c & 0x3F));
tosihisa	9:9ca3db7ed7cb	3846	btw = 2;
tosihisa	9:9ca3db7ed7cb	3847	} else { /* 16-bit */
tosihisa	9:9ca3db7ed7cb	3848	s[0] = (BYTE)(0xE0 \| (c >> 12));
tosihisa	9:9ca3db7ed7cb	3849	s[1] = (BYTE)(0x80 \| ((c >> 6) & 0x3F));
tosihisa	9:9ca3db7ed7cb	3850	s[2] = (BYTE)(0x80 \| (c & 0x3F));
tosihisa	9:9ca3db7ed7cb	3851	btw = 3;
tosihisa	9:9ca3db7ed7cb	3852	}
tosihisa	9:9ca3db7ed7cb	3853	}
tosihisa	9:9ca3db7ed7cb	3854	#else /* Write the character without conversion */
tosihisa	9:9ca3db7ed7cb	3855	s[0] = (BYTE)c;
tosihisa	9:9ca3db7ed7cb	3856	btw = 1;
tosihisa	9:9ca3db7ed7cb	3857	#endif
tosihisa	9:9ca3db7ed7cb	3858	f_write(fil, s, btw, &bw); /* Write the char to the file */
tosihisa	9:9ca3db7ed7cb	3859	return (bw == btw) ? 1 : EOF; /* Return the result */
tosihisa	9:9ca3db7ed7cb	3860	}
tosihisa	9:9ca3db7ed7cb	3861
tosihisa	9:9ca3db7ed7cb	3862
tosihisa	9:9ca3db7ed7cb	3863
tosihisa	9:9ca3db7ed7cb	3864
tosihisa	9:9ca3db7ed7cb	3865	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3866	/* Put a string to the file */
tosihisa	9:9ca3db7ed7cb	3867	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3868	int f_puts (
tosihisa	9:9ca3db7ed7cb	3869	const TCHAR* str, /* Pointer to the string to be output */
tosihisa	9:9ca3db7ed7cb	3870	FIL_t* fil /* Pointer to the file object */
tosihisa	9:9ca3db7ed7cb	3871	)
tosihisa	9:9ca3db7ed7cb	3872	{
tosihisa	9:9ca3db7ed7cb	3873	int n;
tosihisa	9:9ca3db7ed7cb	3874
tosihisa	9:9ca3db7ed7cb	3875
tosihisa	9:9ca3db7ed7cb	3876	for (n = 0; *str; str++, n++) {
tosihisa	9:9ca3db7ed7cb	3877	if (f_putc(*str, fil) == EOF) return EOF;
tosihisa	9:9ca3db7ed7cb	3878	}
tosihisa	9:9ca3db7ed7cb	3879	return n;
tosihisa	9:9ca3db7ed7cb	3880	}
tosihisa	9:9ca3db7ed7cb	3881
tosihisa	9:9ca3db7ed7cb	3882
tosihisa	9:9ca3db7ed7cb	3883
tosihisa	9:9ca3db7ed7cb	3884
tosihisa	9:9ca3db7ed7cb	3885	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3886	/* Put a formatted string to the file */
tosihisa	9:9ca3db7ed7cb	3887	/-----------------------------------------------------------------------/
tosihisa	9:9ca3db7ed7cb	3888	int f_printf (
tosihisa	9:9ca3db7ed7cb	3889	FIL_t* fil, /* Pointer to the file object */
tosihisa	9:9ca3db7ed7cb	3890	const TCHAR* str, /* Pointer to the format string */
tosihisa	9:9ca3db7ed7cb	3891	... /* Optional arguments... */
tosihisa	9:9ca3db7ed7cb	3892	)
tosihisa	9:9ca3db7ed7cb	3893	{
tosihisa	9:9ca3db7ed7cb	3894	va_list arp;
tosihisa	9:9ca3db7ed7cb	3895	BYTE f, r;
tosihisa	9:9ca3db7ed7cb	3896	UINT i, j, w;
tosihisa	9:9ca3db7ed7cb	3897	ULONG v;
tosihisa	9:9ca3db7ed7cb	3898	TCHAR c, d, s[16], *p;
tosihisa	9:9ca3db7ed7cb	3899	int res, cc;
tosihisa	9:9ca3db7ed7cb	3900
tosihisa	9:9ca3db7ed7cb	3901
tosihisa	9:9ca3db7ed7cb	3902	va_start(arp, str);
tosihisa	9:9ca3db7ed7cb	3903
tosihisa	9:9ca3db7ed7cb	3904	for (cc = res = 0; cc != EOF; res += cc) {
tosihisa	9:9ca3db7ed7cb	3905	c = *str++;
tosihisa	9:9ca3db7ed7cb	3906	if (c == 0) break; /* End of string */
tosihisa	9:9ca3db7ed7cb	3907	if (c != '%') { /* Non escape character */
tosihisa	9:9ca3db7ed7cb	3908	cc = f_putc(c, fil);
tosihisa	9:9ca3db7ed7cb	3909	if (cc != EOF) cc = 1;
tosihisa	9:9ca3db7ed7cb	3910	continue;
tosihisa	9:9ca3db7ed7cb	3911	}
tosihisa	9:9ca3db7ed7cb	3912	w = f = 0;
tosihisa	9:9ca3db7ed7cb	3913	c = *str++;
tosihisa	9:9ca3db7ed7cb	3914	if (c == '0') { /* Flag: '0' padding */
tosihisa	9:9ca3db7ed7cb	3915	f = 1; c = *str++;
tosihisa	9:9ca3db7ed7cb	3916	} else {
tosihisa	9:9ca3db7ed7cb	3917	if (c == '-') { /* Flag: left justified */
tosihisa	9:9ca3db7ed7cb	3918	f = 2; c = *str++;
tosihisa	9:9ca3db7ed7cb	3919	}
tosihisa	9:9ca3db7ed7cb	3920	}
tosihisa	9:9ca3db7ed7cb	3921	while (IsDigit(c)) { /* Precision */
tosihisa	9:9ca3db7ed7cb	3922	w = w * 10 + c - '0';
tosihisa	9:9ca3db7ed7cb	3923	c = *str++;
tosihisa	9:9ca3db7ed7cb	3924	}
tosihisa	9:9ca3db7ed7cb	3925	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
tosihisa	9:9ca3db7ed7cb	3926	f \|= 4; c = *str++;
tosihisa	9:9ca3db7ed7cb	3927	}
tosihisa	9:9ca3db7ed7cb	3928	if (!c) break;
tosihisa	9:9ca3db7ed7cb	3929	d = c;
tosihisa	9:9ca3db7ed7cb	3930	if (IsLower(d)) d -= 0x20;
tosihisa	9:9ca3db7ed7cb	3931	switch (d) { /* Type is... */
tosihisa	9:9ca3db7ed7cb	3932	case 'S' : /* String */
tosihisa	9:9ca3db7ed7cb	3933	p = va_arg(arp, TCHAR*);
tosihisa	9:9ca3db7ed7cb	3934	for (j = 0; p[j]; j++) ;
tosihisa	9:9ca3db7ed7cb	3935	res = 0;
tosihisa	9:9ca3db7ed7cb	3936	while (!(f & 2) && j++ < w) res += (cc = f_putc(' ', fil));
tosihisa	9:9ca3db7ed7cb	3937	res += (cc = f_puts(p, fil));
tosihisa	9:9ca3db7ed7cb	3938	while (j++ < w) res += (cc = f_putc(' ', fil));
tosihisa	9:9ca3db7ed7cb	3939	if (cc != EOF) cc = res;
tosihisa	9:9ca3db7ed7cb	3940	continue;
tosihisa	9:9ca3db7ed7cb	3941	case 'C' : /* Character */
tosihisa	9:9ca3db7ed7cb	3942	cc = f_putc((TCHAR)va_arg(arp, int), fil); continue;
tosihisa	9:9ca3db7ed7cb	3943	case 'B' : /* Binary */
tosihisa	9:9ca3db7ed7cb	3944	r = 2; break;
tosihisa	9:9ca3db7ed7cb	3945	case 'O' : /* Octal */
tosihisa	9:9ca3db7ed7cb	3946	r = 8; break;
tosihisa	9:9ca3db7ed7cb	3947	case 'D' : /* Signed decimal */
tosihisa	9:9ca3db7ed7cb	3948	case 'U' : /* Unsigned decimal */
tosihisa	9:9ca3db7ed7cb	3949	r = 10; break;
tosihisa	9:9ca3db7ed7cb	3950	case 'X' : /* Hexdecimal */
tosihisa	9:9ca3db7ed7cb	3951	r = 16; break;
tosihisa	9:9ca3db7ed7cb	3952	default: /* Unknown type (passthrough) */
tosihisa	9:9ca3db7ed7cb	3953	cc = f_putc(c, fil); continue;
tosihisa	9:9ca3db7ed7cb	3954	}
tosihisa	9:9ca3db7ed7cb	3955
tosihisa	9:9ca3db7ed7cb	3956	/* Get an argument and put it in numeral */
tosihisa	9:9ca3db7ed7cb	3957	v = (f & 4) ? va_arg(arp, long) : ((d == 'D') ? (long)va_arg(arp, int) : va_arg(arp, unsigned int));
tosihisa	9:9ca3db7ed7cb	3958	if (d == 'D' && (v & 0x80000000)) {
tosihisa	9:9ca3db7ed7cb	3959	v = 0 - v;
tosihisa	9:9ca3db7ed7cb	3960	f \|= 8;
tosihisa	9:9ca3db7ed7cb	3961	}
tosihisa	9:9ca3db7ed7cb	3962	i = 0;
tosihisa	9:9ca3db7ed7cb	3963	do {
tosihisa	9:9ca3db7ed7cb	3964	d = (TCHAR)(v % r); v /= r;
tosihisa	9:9ca3db7ed7cb	3965	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
tosihisa	9:9ca3db7ed7cb	3966	s[i++] = d + '0';
tosihisa	9:9ca3db7ed7cb	3967	} while (v && i < sizeof(s) / sizeof(s[0]));
tosihisa	9:9ca3db7ed7cb	3968	if (f & 8) s[i++] = '-';
tosihisa	9:9ca3db7ed7cb	3969	j = i; d = (f & 1) ? '0' : ' ';
tosihisa	9:9ca3db7ed7cb	3970	res = 0;
tosihisa	9:9ca3db7ed7cb	3971	while (!(f & 2) && j++ < w) res += (cc = f_putc(d, fil));
tosihisa	9:9ca3db7ed7cb	3972	do res += (cc = f_putc(s[--i], fil)); while(i);
tosihisa	9:9ca3db7ed7cb	3973	while (j++ < w) res += (cc = f_putc(' ', fil));
tosihisa	9:9ca3db7ed7cb	3974	if (cc != EOF) cc = res;
tosihisa	9:9ca3db7ed7cb	3975	}
tosihisa	9:9ca3db7ed7cb	3976
tosihisa	9:9ca3db7ed7cb	3977	va_end(arp);
tosihisa	9:9ca3db7ed7cb	3978	return (cc == EOF) ? cc : res;
tosihisa	9:9ca3db7ed7cb	3979	}
tosihisa	9:9ca3db7ed7cb	3980
tosihisa	9:9ca3db7ed7cb	3981	#endif /* !_FS_READONLY */
tosihisa	9:9ca3db7ed7cb	3982	#endif /* _USE_STRFUNC */

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	26 Dec 2011
Imports:	23
Forks:	0
Commits:	10
Dependents:	0
Dependencies:	4
Followers:	1

ChaNFS/CHAN_FS/ff.c@9:9ca3db7ed7cb, 2012-02-27 (annotated)

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