S25FL216K_USBFileSystem - Implementation of a LocalFileSystem using S25FL21…

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Implementation of a LocalFileSystem using S25FL216K serial flash memory. Currently only 256kB available!

Fork of S25FL216K_USBFileSystem by Erik -

FATFileSystem/ChaN/ff.cpp@5:c8918e47c566, 2014-12-23 (annotated)

Committer:: mkilivan
Date:: Tue Dec 23 21:36:32 2014 +0000
Revision:: 5:c8918e47c566

initial commit

Who changed what in which revision?

User	Revision	Line number	New contents of line
mkilivan	5:c8918e47c566	1	/*----------------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2	/ FatFs - FAT file system module R0.09a (C)ChaN, 2012
mkilivan	5:c8918e47c566	3	/-----------------------------------------------------------------------------/
mkilivan	5:c8918e47c566	4	/ FatFs module is a generic FAT file system module for small embedded systems.
mkilivan	5:c8918e47c566	5	/ This is a free software that opened for education, research and commercial
mkilivan	5:c8918e47c566	6	/ developments under license policy of following terms.
mkilivan	5:c8918e47c566	7	/
mkilivan	5:c8918e47c566	8	/ Copyright (C) 2012, ChaN, all right reserved.
mkilivan	5:c8918e47c566	9	/
mkilivan	5:c8918e47c566	10	/ * The FatFs module is a free software and there is NO WARRANTY.
mkilivan	5:c8918e47c566	11	/ * No restriction on use. You can use, modify and redistribute it for
mkilivan	5:c8918e47c566	12	/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
mkilivan	5:c8918e47c566	13	/ * Redistributions of source code must retain the above copyright notice.
mkilivan	5:c8918e47c566	14	/
mkilivan	5:c8918e47c566	15	/-----------------------------------------------------------------------------/
mkilivan	5:c8918e47c566	16	/ Feb 26,'06 R0.00 Prototype.
mkilivan	5:c8918e47c566	17	/
mkilivan	5:c8918e47c566	18	/ Apr 29,'06 R0.01 First stable version.
mkilivan	5:c8918e47c566	19	/
mkilivan	5:c8918e47c566	20	/ Jun 01,'06 R0.02 Added FAT12 support.
mkilivan	5:c8918e47c566	21	/ Removed unbuffered mode.
mkilivan	5:c8918e47c566	22	/ Fixed a problem on small (<32M) partition.
mkilivan	5:c8918e47c566	23	/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
mkilivan	5:c8918e47c566	24	/
mkilivan	5:c8918e47c566	25	/ Sep 22,'06 R0.03 Added f_rename().
mkilivan	5:c8918e47c566	26	/ Changed option _FS_MINIMUM to _FS_MINIMIZE.
mkilivan	5:c8918e47c566	27	/ Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
mkilivan	5:c8918e47c566	28	/ Fixed f_mkdir() creates incorrect directory on FAT32.
mkilivan	5:c8918e47c566	29	/
mkilivan	5:c8918e47c566	30	/ Feb 04,'07 R0.04 Supported multiple drive system.
mkilivan	5:c8918e47c566	31	/ Changed some interfaces for multiple drive system.
mkilivan	5:c8918e47c566	32	/ Changed f_mountdrv() to f_mount().
mkilivan	5:c8918e47c566	33	/ Added f_mkfs().
mkilivan	5:c8918e47c566	34	/ Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
mkilivan	5:c8918e47c566	35	/ Added a capability of extending file size to f_lseek().
mkilivan	5:c8918e47c566	36	/ Added minimization level 3.
mkilivan	5:c8918e47c566	37	/ Fixed an endian sensitive code in f_mkfs().
mkilivan	5:c8918e47c566	38	/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
mkilivan	5:c8918e47c566	39	/ Added FSInfo support.
mkilivan	5:c8918e47c566	40	/ Fixed DBCS name can result FR_INVALID_NAME.
mkilivan	5:c8918e47c566	41	/ Fixed short seek (<= csize) collapses the file object.
mkilivan	5:c8918e47c566	42	/
mkilivan	5:c8918e47c566	43	/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
mkilivan	5:c8918e47c566	44	/ Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
mkilivan	5:c8918e47c566	45	/ Fixed f_mkdir() on FAT32 creates incorrect directory.
mkilivan	5:c8918e47c566	46	/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
mkilivan	5:c8918e47c566	47	/ Fixed off by one error at FAT sub-type determination.
mkilivan	5:c8918e47c566	48	/ Fixed btr in f_read() can be mistruncated.
mkilivan	5:c8918e47c566	49	/ Fixed cached sector is not flushed when create and close without write.
mkilivan	5:c8918e47c566	50	/
mkilivan	5:c8918e47c566	51	/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
mkilivan	5:c8918e47c566	52	/ Improved performance of f_lseek() on moving to the same or following cluster.
mkilivan	5:c8918e47c566	53	/
mkilivan	5:c8918e47c566	54	/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
mkilivan	5:c8918e47c566	55	/ Added long file name feature.
mkilivan	5:c8918e47c566	56	/ Added multiple code page feature.
mkilivan	5:c8918e47c566	57	/ Added re-entrancy for multitask operation.
mkilivan	5:c8918e47c566	58	/ Added auto cluster size selection to f_mkfs().
mkilivan	5:c8918e47c566	59	/ Added rewind option to f_readdir().
mkilivan	5:c8918e47c566	60	/ Changed result code of critical errors.
mkilivan	5:c8918e47c566	61	/ Renamed string functions to avoid name collision.
mkilivan	5:c8918e47c566	62	/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
mkilivan	5:c8918e47c566	63	/ Added multiple sector size feature.
mkilivan	5:c8918e47c566	64	/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
mkilivan	5:c8918e47c566	65	/ Fixed wrong cache control in f_lseek().
mkilivan	5:c8918e47c566	66	/ Added relative path feature.
mkilivan	5:c8918e47c566	67	/ Added f_chdir() and f_chdrive().
mkilivan	5:c8918e47c566	68	/ Added proper case conversion to extended char.
mkilivan	5:c8918e47c566	69	/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
mkilivan	5:c8918e47c566	70	/ Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
mkilivan	5:c8918e47c566	71	/ Fixed name matching error on the 13 char boundary.
mkilivan	5:c8918e47c566	72	/ Added a configuration option, _LFN_UNICODE.
mkilivan	5:c8918e47c566	73	/ Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
mkilivan	5:c8918e47c566	74	/
mkilivan	5:c8918e47c566	75	/ May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
mkilivan	5:c8918e47c566	76	/ Added file lock feature. (_FS_SHARE)
mkilivan	5:c8918e47c566	77	/ Added fast seek feature. (_USE_FASTSEEK)
mkilivan	5:c8918e47c566	78	/ Changed some types on the API, XCHAR->TCHAR.
mkilivan	5:c8918e47c566	79	/ Changed fname member in the FILINFO structure on Unicode cfg.
mkilivan	5:c8918e47c566	80	/ String functions support UTF-8 encoding files on Unicode cfg.
mkilivan	5:c8918e47c566	81	/ Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
mkilivan	5:c8918e47c566	82	/ Added sector erase feature. (_USE_ERASE)
mkilivan	5:c8918e47c566	83	/ Moved file lock semaphore table from fs object to the bss.
mkilivan	5:c8918e47c566	84	/ Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
mkilivan	5:c8918e47c566	85	/ Fixed f_mkfs() creates wrong FAT32 volume.
mkilivan	5:c8918e47c566	86	/ Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
mkilivan	5:c8918e47c566	87	/ f_lseek() reports required table size on creating CLMP.
mkilivan	5:c8918e47c566	88	/ Extended format syntax of f_printf function.
mkilivan	5:c8918e47c566	89	/ Ignores duplicated directory separators in given path name.
mkilivan	5:c8918e47c566	90	/
mkilivan	5:c8918e47c566	91	/ Sep 06,'11 R0.09 f_mkfs() supports multiple partition to finish the multiple partition feature.
mkilivan	5:c8918e47c566	92	/ Added f_fdisk(). (_MULTI_PARTITION = 2)
mkilivan	5:c8918e47c566	93	/ Aug 27,'12 R0.09a Fixed assertion failure due to OS/2 EA on FAT12/16 volume.
mkilivan	5:c8918e47c566	94	/ Changed f_open() and f_opendir reject null object pointer to avoid crash.
mkilivan	5:c8918e47c566	95	/ Changed option name _FS_SHARE to _FS_LOCK.
mkilivan	5:c8918e47c566	96	/---------------------------------------------------------------------------*/
mkilivan	5:c8918e47c566	97
mkilivan	5:c8918e47c566	98	#include "ff.h" /* FatFs configurations and declarations */
mkilivan	5:c8918e47c566	99	#include "diskio.h" /* Declarations of low level disk I/O functions */
mkilivan	5:c8918e47c566	100
mkilivan	5:c8918e47c566	101	/*--------------------------------------------------------------------------
mkilivan	5:c8918e47c566	102
mkilivan	5:c8918e47c566	103	Module Private Definitions
mkilivan	5:c8918e47c566	104
mkilivan	5:c8918e47c566	105	---------------------------------------------------------------------------*/
mkilivan	5:c8918e47c566	106
mkilivan	5:c8918e47c566	107	#if _FATFS != 4004 /* Revision ID */
mkilivan	5:c8918e47c566	108	#error Wrong include file (ff.h).
mkilivan	5:c8918e47c566	109	#endif
mkilivan	5:c8918e47c566	110
mkilivan	5:c8918e47c566	111
mkilivan	5:c8918e47c566	112	/* Definitions on sector size */
mkilivan	5:c8918e47c566	113	#if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
mkilivan	5:c8918e47c566	114	#error Wrong sector size.
mkilivan	5:c8918e47c566	115	#endif
mkilivan	5:c8918e47c566	116	#if _MAX_SS != 512
mkilivan	5:c8918e47c566	117	#define SS(fs) ((fs)->ssize) /* Variable sector size */
mkilivan	5:c8918e47c566	118	#else
mkilivan	5:c8918e47c566	119	#define SS(fs) 512U /* Fixed sector size */
mkilivan	5:c8918e47c566	120	#endif
mkilivan	5:c8918e47c566	121
mkilivan	5:c8918e47c566	122
mkilivan	5:c8918e47c566	123	/* Reentrancy related */
mkilivan	5:c8918e47c566	124	#if _FS_REENTRANT
mkilivan	5:c8918e47c566	125	#if _USE_LFN == 1
mkilivan	5:c8918e47c566	126	#error Static LFN work area must not be used in re-entrant configuration.
mkilivan	5:c8918e47c566	127	#endif
mkilivan	5:c8918e47c566	128	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
mkilivan	5:c8918e47c566	129	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
mkilivan	5:c8918e47c566	130	#else
mkilivan	5:c8918e47c566	131	#define ENTER_FF(fs)
mkilivan	5:c8918e47c566	132	#define LEAVE_FF(fs, res) return res
mkilivan	5:c8918e47c566	133	#endif
mkilivan	5:c8918e47c566	134
mkilivan	5:c8918e47c566	135	#define ABORT(fs, res) { fp->flag \|= FA__ERROR; LEAVE_FF(fs, res); }
mkilivan	5:c8918e47c566	136
mkilivan	5:c8918e47c566	137
mkilivan	5:c8918e47c566	138	/* File access control feature */
mkilivan	5:c8918e47c566	139	#if _FS_LOCK
mkilivan	5:c8918e47c566	140	#if _FS_READONLY
mkilivan	5:c8918e47c566	141	#error _FS_LOCK must be 0 on read-only cfg.
mkilivan	5:c8918e47c566	142	#endif
mkilivan	5:c8918e47c566	143	typedef struct {
mkilivan	5:c8918e47c566	144	FATFS fs; / File ID 1, volume (NULL:blank entry) */
mkilivan	5:c8918e47c566	145	DWORD clu; /* File ID 2, directory */
mkilivan	5:c8918e47c566	146	WORD idx; /* File ID 3, directory index */
mkilivan	5:c8918e47c566	147	WORD ctr; /* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:write mode */
mkilivan	5:c8918e47c566	148	} FILESEM;
mkilivan	5:c8918e47c566	149	#endif
mkilivan	5:c8918e47c566	150
mkilivan	5:c8918e47c566	151
mkilivan	5:c8918e47c566	152
mkilivan	5:c8918e47c566	153	/* DBCS code ranges and SBCS extend char conversion table */
mkilivan	5:c8918e47c566	154
mkilivan	5:c8918e47c566	155	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
mkilivan	5:c8918e47c566	156	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
mkilivan	5:c8918e47c566	157	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
mkilivan	5:c8918e47c566	158	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
mkilivan	5:c8918e47c566	159	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
mkilivan	5:c8918e47c566	160	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
mkilivan	5:c8918e47c566	161	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
mkilivan	5:c8918e47c566	162	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
mkilivan	5:c8918e47c566	163	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
mkilivan	5:c8918e47c566	164
mkilivan	5:c8918e47c566	165	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
mkilivan	5:c8918e47c566	166	#define _DF1S 0x81
mkilivan	5:c8918e47c566	167	#define _DF1E 0xFE
mkilivan	5:c8918e47c566	168	#define _DS1S 0x40
mkilivan	5:c8918e47c566	169	#define _DS1E 0x7E
mkilivan	5:c8918e47c566	170	#define _DS2S 0x80
mkilivan	5:c8918e47c566	171	#define _DS2E 0xFE
mkilivan	5:c8918e47c566	172
mkilivan	5:c8918e47c566	173	#elif _CODE_PAGE == 949 /* Korean */
mkilivan	5:c8918e47c566	174	#define _DF1S 0x81
mkilivan	5:c8918e47c566	175	#define _DF1E 0xFE
mkilivan	5:c8918e47c566	176	#define _DS1S 0x41
mkilivan	5:c8918e47c566	177	#define _DS1E 0x5A
mkilivan	5:c8918e47c566	178	#define _DS2S 0x61
mkilivan	5:c8918e47c566	179	#define _DS2E 0x7A
mkilivan	5:c8918e47c566	180	#define _DS3S 0x81
mkilivan	5:c8918e47c566	181	#define _DS3E 0xFE
mkilivan	5:c8918e47c566	182
mkilivan	5:c8918e47c566	183	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
mkilivan	5:c8918e47c566	184	#define _DF1S 0x81
mkilivan	5:c8918e47c566	185	#define _DF1E 0xFE
mkilivan	5:c8918e47c566	186	#define _DS1S 0x40
mkilivan	5:c8918e47c566	187	#define _DS1E 0x7E
mkilivan	5:c8918e47c566	188	#define _DS2S 0xA1
mkilivan	5:c8918e47c566	189	#define _DS2E 0xFE
mkilivan	5:c8918e47c566	190
mkilivan	5:c8918e47c566	191	#elif _CODE_PAGE == 437 /* U.S. (OEM) */
mkilivan	5:c8918e47c566	192	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	197
mkilivan	5:c8918e47c566	198	#elif _CODE_PAGE == 720 /* Arabic (OEM) */
mkilivan	5:c8918e47c566	199	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	204
mkilivan	5:c8918e47c566	205	#elif _CODE_PAGE == 737 /* Greek (OEM) */
mkilivan	5:c8918e47c566	206	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	211
mkilivan	5:c8918e47c566	212	#elif _CODE_PAGE == 775 /* Baltic (OEM) */
mkilivan	5:c8918e47c566	213	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	218
mkilivan	5:c8918e47c566	219	#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
mkilivan	5:c8918e47c566	220	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	225
mkilivan	5:c8918e47c566	226	#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
mkilivan	5:c8918e47c566	227	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	232
mkilivan	5:c8918e47c566	233	#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
mkilivan	5:c8918e47c566	234	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	239
mkilivan	5:c8918e47c566	240	#elif _CODE_PAGE == 857 /* Turkish (OEM) */
mkilivan	5:c8918e47c566	241	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	246
mkilivan	5:c8918e47c566	247	#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
mkilivan	5:c8918e47c566	248	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	253
mkilivan	5:c8918e47c566	254	#elif _CODE_PAGE == 862 /* Hebrew (OEM) */
mkilivan	5:c8918e47c566	255	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	260
mkilivan	5:c8918e47c566	261	#elif _CODE_PAGE == 866 /* Russian (OEM) */
mkilivan	5:c8918e47c566	262	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	267
mkilivan	5:c8918e47c566	268	#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
mkilivan	5:c8918e47c566	269	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	274
mkilivan	5:c8918e47c566	275	#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
mkilivan	5:c8918e47c566	276	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	281
mkilivan	5:c8918e47c566	282	#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
mkilivan	5:c8918e47c566	283	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	288
mkilivan	5:c8918e47c566	289	#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
mkilivan	5:c8918e47c566	290	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	295
mkilivan	5:c8918e47c566	296	#elif _CODE_PAGE == 1253 /* Greek (Windows) */
mkilivan	5:c8918e47c566	297	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	302
mkilivan	5:c8918e47c566	303	#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
mkilivan	5:c8918e47c566	304	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	309
mkilivan	5:c8918e47c566	310	#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
mkilivan	5:c8918e47c566	311	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	316
mkilivan	5:c8918e47c566	317	#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
mkilivan	5:c8918e47c566	318	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	323
mkilivan	5:c8918e47c566	324	#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
mkilivan	5:c8918e47c566	325	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	330
mkilivan	5:c8918e47c566	331	#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
mkilivan	5:c8918e47c566	332	#define _DF1S 0
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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, \
mkilivan	5:c8918e47c566	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}
mkilivan	5:c8918e47c566	337
mkilivan	5:c8918e47c566	338	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
mkilivan	5:c8918e47c566	339	#if _USE_LFN
mkilivan	5:c8918e47c566	340	#error Cannot use LFN feature without valid code page.
mkilivan	5:c8918e47c566	341	#endif
mkilivan	5:c8918e47c566	342	#define _DF1S 0
mkilivan	5:c8918e47c566	343
mkilivan	5:c8918e47c566	344	#else
mkilivan	5:c8918e47c566	345	#error Unknown code page
mkilivan	5:c8918e47c566	346
mkilivan	5:c8918e47c566	347	#endif
mkilivan	5:c8918e47c566	348
mkilivan	5:c8918e47c566	349
mkilivan	5:c8918e47c566	350	/* Character code support macros */
mkilivan	5:c8918e47c566	351	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
mkilivan	5:c8918e47c566	352	#define IsLower(c) (((c)>='a')&&((c)<='z'))
mkilivan	5:c8918e47c566	353	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
mkilivan	5:c8918e47c566	354
mkilivan	5:c8918e47c566	355	#if _DF1S /* Code page is DBCS */
mkilivan	5:c8918e47c566	356
mkilivan	5:c8918e47c566	357	#ifdef _DF2S /* Two 1st byte areas */
mkilivan	5:c8918e47c566	358	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
mkilivan	5:c8918e47c566	359	#else /* One 1st byte area */
mkilivan	5:c8918e47c566	360	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
mkilivan	5:c8918e47c566	361	#endif
mkilivan	5:c8918e47c566	362
mkilivan	5:c8918e47c566	363	#ifdef _DS3S /* Three 2nd byte areas */
mkilivan	5:c8918e47c566	364	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
mkilivan	5:c8918e47c566	365	#else /* Two 2nd byte areas */
mkilivan	5:c8918e47c566	366	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
mkilivan	5:c8918e47c566	367	#endif
mkilivan	5:c8918e47c566	368
mkilivan	5:c8918e47c566	369	#else /* Code page is SBCS */
mkilivan	5:c8918e47c566	370
mkilivan	5:c8918e47c566	371	#define IsDBCS1(c) 0
mkilivan	5:c8918e47c566	372	#define IsDBCS2(c) 0
mkilivan	5:c8918e47c566	373
mkilivan	5:c8918e47c566	374	#endif /* _DF1S */
mkilivan	5:c8918e47c566	375
mkilivan	5:c8918e47c566	376
mkilivan	5:c8918e47c566	377	/* Name status flags */
mkilivan	5:c8918e47c566	378	#define NS 11 /* Index of name status byte in fn[] */
mkilivan	5:c8918e47c566	379	#define NS_LOSS 0x01 /* Out of 8.3 format */
mkilivan	5:c8918e47c566	380	#define NS_LFN 0x02 /* Force to create LFN entry */
mkilivan	5:c8918e47c566	381	#define NS_LAST 0x04 /* Last segment */
mkilivan	5:c8918e47c566	382	#define NS_BODY 0x08 /* Lower case flag (body) */
mkilivan	5:c8918e47c566	383	#define NS_EXT 0x10 /* Lower case flag (ext) */
mkilivan	5:c8918e47c566	384	#define NS_DOT 0x20 /* Dot entry */
mkilivan	5:c8918e47c566	385
mkilivan	5:c8918e47c566	386
mkilivan	5:c8918e47c566	387	/* FAT sub-type boundaries */
mkilivan	5:c8918e47c566	388	/* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */
mkilivan	5:c8918e47c566	389	#define MIN_FAT16 4086 /* Minimum number of clusters for FAT16 */
mkilivan	5:c8918e47c566	390	#define MIN_FAT32 65526 /* Minimum number of clusters for FAT32 */
mkilivan	5:c8918e47c566	391
mkilivan	5:c8918e47c566	392
mkilivan	5:c8918e47c566	393	/* FatFs refers the members in the FAT structures as byte array instead of
mkilivan	5:c8918e47c566	394	/ structure member because the structure is not binary compatible between
mkilivan	5:c8918e47c566	395	/ different platforms */
mkilivan	5:c8918e47c566	396
mkilivan	5:c8918e47c566	397	#define BS_jmpBoot 0 /* Jump instruction (3) */
mkilivan	5:c8918e47c566	398	#define BS_OEMName 3 /* OEM name (8) */
mkilivan	5:c8918e47c566	399	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
mkilivan	5:c8918e47c566	400	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
mkilivan	5:c8918e47c566	401	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
mkilivan	5:c8918e47c566	402	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
mkilivan	5:c8918e47c566	403	#define BPB_RootEntCnt 17 /* Number of root dir entries for FAT12/16 (2) */
mkilivan	5:c8918e47c566	404	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
mkilivan	5:c8918e47c566	405	#define BPB_Media 21 /* Media descriptor (1) */
mkilivan	5:c8918e47c566	406	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
mkilivan	5:c8918e47c566	407	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
mkilivan	5:c8918e47c566	408	#define BPB_NumHeads 26 /* Number of heads (2) */
mkilivan	5:c8918e47c566	409	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
mkilivan	5:c8918e47c566	410	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
mkilivan	5:c8918e47c566	411	#define BS_DrvNum 36 /* Physical drive number (2) */
mkilivan	5:c8918e47c566	412	#define BS_BootSig 38 /* Extended boot signature (1) */
mkilivan	5:c8918e47c566	413	#define BS_VolID 39 /* Volume serial number (4) */
mkilivan	5:c8918e47c566	414	#define BS_VolLab 43 /* Volume label (8) */
mkilivan	5:c8918e47c566	415	#define BS_FilSysType 54 /* File system type (1) */
mkilivan	5:c8918e47c566	416	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
mkilivan	5:c8918e47c566	417	#define BPB_ExtFlags 40 /* Extended flags (2) */
mkilivan	5:c8918e47c566	418	#define BPB_FSVer 42 /* File system version (2) */
mkilivan	5:c8918e47c566	419	#define BPB_RootClus 44 /* Root dir first cluster (4) */
mkilivan	5:c8918e47c566	420	#define BPB_FSInfo 48 /* Offset of FSInfo sector (2) */
mkilivan	5:c8918e47c566	421	#define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
mkilivan	5:c8918e47c566	422	#define BS_DrvNum32 64 /* Physical drive number (2) */
mkilivan	5:c8918e47c566	423	#define BS_BootSig32 66 /* Extended boot signature (1) */
mkilivan	5:c8918e47c566	424	#define BS_VolID32 67 /* Volume serial number (4) */
mkilivan	5:c8918e47c566	425	#define BS_VolLab32 71 /* Volume label (8) */
mkilivan	5:c8918e47c566	426	#define BS_FilSysType32 82 /* File system type (1) */
mkilivan	5:c8918e47c566	427	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
mkilivan	5:c8918e47c566	428	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
mkilivan	5:c8918e47c566	429	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
mkilivan	5:c8918e47c566	430	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
mkilivan	5:c8918e47c566	431	#define MBR_Table 446 /* MBR: Partition table offset (2) */
mkilivan	5:c8918e47c566	432	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
mkilivan	5:c8918e47c566	433	#define BS_55AA 510 /* Boot sector signature (2) */
mkilivan	5:c8918e47c566	434
mkilivan	5:c8918e47c566	435	#define DIR_Name 0 /* Short file name (11) */
mkilivan	5:c8918e47c566	436	#define DIR_Attr 11 /* Attribute (1) */
mkilivan	5:c8918e47c566	437	#define DIR_NTres 12 /* NT flag (1) */
mkilivan	5:c8918e47c566	438	#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
mkilivan	5:c8918e47c566	439	#define DIR_CrtTime 14 /* Created time (2) */
mkilivan	5:c8918e47c566	440	#define DIR_CrtDate 16 /* Created date (2) */
mkilivan	5:c8918e47c566	441	#define DIR_LstAccDate 18 /* Last accessed date (2) */
mkilivan	5:c8918e47c566	442	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
mkilivan	5:c8918e47c566	443	#define DIR_WrtTime 22 /* Modified time (2) */
mkilivan	5:c8918e47c566	444	#define DIR_WrtDate 24 /* Modified date (2) */
mkilivan	5:c8918e47c566	445	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
mkilivan	5:c8918e47c566	446	#define DIR_FileSize 28 /* File size (4) */
mkilivan	5:c8918e47c566	447	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
mkilivan	5:c8918e47c566	448	#define LDIR_Attr 11 /* LFN attribute (1) */
mkilivan	5:c8918e47c566	449	#define LDIR_Type 12 /* LFN type (1) */
mkilivan	5:c8918e47c566	450	#define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
mkilivan	5:c8918e47c566	451	#define LDIR_FstClusLO 26 /* Filled by zero (0) */
mkilivan	5:c8918e47c566	452	#define SZ_DIR 32 /* Size of a directory entry */
mkilivan	5:c8918e47c566	453	#define LLE 0x40 /* Last long entry flag in LDIR_Ord */
mkilivan	5:c8918e47c566	454	#define DDE 0xE5 /* Deleted directory entry mark in DIR_Name[0] */
mkilivan	5:c8918e47c566	455	#define NDDE 0x05 /* Replacement of the character collides with DDE */
mkilivan	5:c8918e47c566	456
mkilivan	5:c8918e47c566	457
mkilivan	5:c8918e47c566	458	/------------------------------------------------------------/
mkilivan	5:c8918e47c566	459	/* Module private work area */
mkilivan	5:c8918e47c566	460	/------------------------------------------------------------/
mkilivan	5:c8918e47c566	461	/* Note that uninitialized variables with static duration are
mkilivan	5:c8918e47c566	462	/ zeroed/nulled at start-up. If not, the compiler or start-up
mkilivan	5:c8918e47c566	463	/ routine is out of ANSI-C standard.
mkilivan	5:c8918e47c566	464	*/
mkilivan	5:c8918e47c566	465
mkilivan	5:c8918e47c566	466	#if _VOLUMES
mkilivan	5:c8918e47c566	467	static
mkilivan	5:c8918e47c566	468	FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
mkilivan	5:c8918e47c566	469	#else
mkilivan	5:c8918e47c566	470	#error Number of volumes must not be 0.
mkilivan	5:c8918e47c566	471	#endif
mkilivan	5:c8918e47c566	472
mkilivan	5:c8918e47c566	473	static
mkilivan	5:c8918e47c566	474	WORD Fsid; /* File system mount ID */
mkilivan	5:c8918e47c566	475
mkilivan	5:c8918e47c566	476	#if _FS_RPATH
mkilivan	5:c8918e47c566	477	static
mkilivan	5:c8918e47c566	478	BYTE CurrVol; /* Current drive */
mkilivan	5:c8918e47c566	479	#endif
mkilivan	5:c8918e47c566	480
mkilivan	5:c8918e47c566	481	#if _FS_LOCK
mkilivan	5:c8918e47c566	482	static
mkilivan	5:c8918e47c566	483	FILESEM Files[_FS_LOCK]; /* File lock semaphores */
mkilivan	5:c8918e47c566	484	#endif
mkilivan	5:c8918e47c566	485
mkilivan	5:c8918e47c566	486	#if _USE_LFN == 0 /* No LFN feature */
mkilivan	5:c8918e47c566	487	#define DEF_NAMEBUF BYTE sfn[12]
mkilivan	5:c8918e47c566	488	#define INIT_BUF(dobj) (dobj).fn = sfn
mkilivan	5:c8918e47c566	489	#define FREE_BUF()
mkilivan	5:c8918e47c566	490
mkilivan	5:c8918e47c566	491	#elif _USE_LFN == 1 /* LFN feature with static working buffer */
mkilivan	5:c8918e47c566	492	static WCHAR LfnBuf[_MAX_LFN+1];
mkilivan	5:c8918e47c566	493	#define DEF_NAMEBUF BYTE sfn[12]
mkilivan	5:c8918e47c566	494	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
mkilivan	5:c8918e47c566	495	#define FREE_BUF()
mkilivan	5:c8918e47c566	496
mkilivan	5:c8918e47c566	497	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
mkilivan	5:c8918e47c566	498	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
mkilivan	5:c8918e47c566	499	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
mkilivan	5:c8918e47c566	500	#define FREE_BUF()
mkilivan	5:c8918e47c566	501
mkilivan	5:c8918e47c566	502	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
mkilivan	5:c8918e47c566	503	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
mkilivan	5:c8918e47c566	504	#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
mkilivan	5:c8918e47c566	505	if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
mkilivan	5:c8918e47c566	506	(dobj).lfn = lfn; (dobj).fn = sfn; }
mkilivan	5:c8918e47c566	507	#define FREE_BUF() ff_memfree(lfn)
mkilivan	5:c8918e47c566	508
mkilivan	5:c8918e47c566	509	#else
mkilivan	5:c8918e47c566	510	#error Wrong LFN configuration.
mkilivan	5:c8918e47c566	511	#endif
mkilivan	5:c8918e47c566	512
mkilivan	5:c8918e47c566	513
mkilivan	5:c8918e47c566	514
mkilivan	5:c8918e47c566	515
mkilivan	5:c8918e47c566	516	/*--------------------------------------------------------------------------
mkilivan	5:c8918e47c566	517
mkilivan	5:c8918e47c566	518	Module Private Functions
mkilivan	5:c8918e47c566	519
mkilivan	5:c8918e47c566	520	---------------------------------------------------------------------------*/
mkilivan	5:c8918e47c566	521
mkilivan	5:c8918e47c566	522
mkilivan	5:c8918e47c566	523	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	524	/* String functions */
mkilivan	5:c8918e47c566	525	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	526
mkilivan	5:c8918e47c566	527	/* Copy memory to memory */
mkilivan	5:c8918e47c566	528	static
mkilivan	5:c8918e47c566	529	void mem_cpy (void* dst, const void* src, UINT cnt) {
mkilivan	5:c8918e47c566	530	BYTE d = (BYTE)dst;
mkilivan	5:c8918e47c566	531	const BYTE s = (const BYTE)src;
mkilivan	5:c8918e47c566	532
mkilivan	5:c8918e47c566	533	#if _WORD_ACCESS == 1
mkilivan	5:c8918e47c566	534	while (cnt >= sizeof (int)) {
mkilivan	5:c8918e47c566	535	(int)d = (int)s;
mkilivan	5:c8918e47c566	536	d += sizeof (int); s += sizeof (int);
mkilivan	5:c8918e47c566	537	cnt -= sizeof (int);
mkilivan	5:c8918e47c566	538	}
mkilivan	5:c8918e47c566	539	#endif
mkilivan	5:c8918e47c566	540	while (cnt--)
mkilivan	5:c8918e47c566	541	d++ = s++;
mkilivan	5:c8918e47c566	542	}
mkilivan	5:c8918e47c566	543
mkilivan	5:c8918e47c566	544	/* Fill memory */
mkilivan	5:c8918e47c566	545	static
mkilivan	5:c8918e47c566	546	void mem_set (void* dst, int val, UINT cnt) {
mkilivan	5:c8918e47c566	547	BYTE d = (BYTE)dst;
mkilivan	5:c8918e47c566	548
mkilivan	5:c8918e47c566	549	while (cnt--)
mkilivan	5:c8918e47c566	550	*d++ = (BYTE)val;
mkilivan	5:c8918e47c566	551	}
mkilivan	5:c8918e47c566	552
mkilivan	5:c8918e47c566	553	/* Compare memory to memory */
mkilivan	5:c8918e47c566	554	static
mkilivan	5:c8918e47c566	555	int mem_cmp (const void* dst, const void* src, UINT cnt) {
mkilivan	5:c8918e47c566	556	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
mkilivan	5:c8918e47c566	557	int r = 0;
mkilivan	5:c8918e47c566	558
mkilivan	5:c8918e47c566	559	while (cnt-- && (r = d++ - s++) == 0) ;
mkilivan	5:c8918e47c566	560	return r;
mkilivan	5:c8918e47c566	561	}
mkilivan	5:c8918e47c566	562
mkilivan	5:c8918e47c566	563	/* Check if chr is contained in the string */
mkilivan	5:c8918e47c566	564	static
mkilivan	5:c8918e47c566	565	int chk_chr (const char* str, int chr) {
mkilivan	5:c8918e47c566	566	while (str && str != chr) str++;
mkilivan	5:c8918e47c566	567	return *str;
mkilivan	5:c8918e47c566	568	}
mkilivan	5:c8918e47c566	569
mkilivan	5:c8918e47c566	570
mkilivan	5:c8918e47c566	571
mkilivan	5:c8918e47c566	572	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	573	/* Request/Release grant to access the volume */
mkilivan	5:c8918e47c566	574	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	575	#if _FS_REENTRANT
mkilivan	5:c8918e47c566	576
mkilivan	5:c8918e47c566	577	static
mkilivan	5:c8918e47c566	578	int lock_fs (
mkilivan	5:c8918e47c566	579	FATFS fs / File system object */
mkilivan	5:c8918e47c566	580	)
mkilivan	5:c8918e47c566	581	{
mkilivan	5:c8918e47c566	582	return ff_req_grant(fs->sobj);
mkilivan	5:c8918e47c566	583	}
mkilivan	5:c8918e47c566	584
mkilivan	5:c8918e47c566	585
mkilivan	5:c8918e47c566	586	static
mkilivan	5:c8918e47c566	587	void unlock_fs (
mkilivan	5:c8918e47c566	588	FATFS fs, / File system object */
mkilivan	5:c8918e47c566	589	FRESULT res /* Result code to be returned */
mkilivan	5:c8918e47c566	590	)
mkilivan	5:c8918e47c566	591	{
mkilivan	5:c8918e47c566	592	if (fs &&
mkilivan	5:c8918e47c566	593	res != FR_NOT_ENABLED &&
mkilivan	5:c8918e47c566	594	res != FR_INVALID_DRIVE &&
mkilivan	5:c8918e47c566	595	res != FR_INVALID_OBJECT &&
mkilivan	5:c8918e47c566	596	res != FR_TIMEOUT) {
mkilivan	5:c8918e47c566	597	ff_rel_grant(fs->sobj);
mkilivan	5:c8918e47c566	598	}
mkilivan	5:c8918e47c566	599	}
mkilivan	5:c8918e47c566	600	#endif
mkilivan	5:c8918e47c566	601
mkilivan	5:c8918e47c566	602
mkilivan	5:c8918e47c566	603
mkilivan	5:c8918e47c566	604	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	605	/* File lock control functions */
mkilivan	5:c8918e47c566	606	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	607	#if _FS_LOCK
mkilivan	5:c8918e47c566	608
mkilivan	5:c8918e47c566	609	static
mkilivan	5:c8918e47c566	610	FRESULT chk_lock ( /* Check if the file can be accessed */
mkilivan	5:c8918e47c566	611	DIR* dj, /* Directory object pointing the file to be checked */
mkilivan	5:c8918e47c566	612	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
mkilivan	5:c8918e47c566	613	)
mkilivan	5:c8918e47c566	614	{
mkilivan	5:c8918e47c566	615	UINT i, be;
mkilivan	5:c8918e47c566	616
mkilivan	5:c8918e47c566	617	/* Search file semaphore table */
mkilivan	5:c8918e47c566	618	for (i = be = 0; i < _FS_LOCK; i++) {
mkilivan	5:c8918e47c566	619	if (Files[i].fs) { /* Existing entry */
mkilivan	5:c8918e47c566	620	if (Files[i].fs == dj->fs && /* Check if the file matched with an open file */
mkilivan	5:c8918e47c566	621	Files[i].clu == dj->sclust &&
mkilivan	5:c8918e47c566	622	Files[i].idx == dj->index) break;
mkilivan	5:c8918e47c566	623	} else { /* Blank entry */
mkilivan	5:c8918e47c566	624	be++;
mkilivan	5:c8918e47c566	625	}
mkilivan	5:c8918e47c566	626	}
mkilivan	5:c8918e47c566	627	if (i == _FS_LOCK) /* The file is not opened */
mkilivan	5:c8918e47c566	628	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new file? */
mkilivan	5:c8918e47c566	629
mkilivan	5:c8918e47c566	630	/* The file has been opened. Reject any open against writing file and all write mode open */
mkilivan	5:c8918e47c566	631	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
mkilivan	5:c8918e47c566	632	}
mkilivan	5:c8918e47c566	633
mkilivan	5:c8918e47c566	634
mkilivan	5:c8918e47c566	635	static
mkilivan	5:c8918e47c566	636	int enq_lock (void) /* Check if an entry is available for a new file */
mkilivan	5:c8918e47c566	637	{
mkilivan	5:c8918e47c566	638	UINT i;
mkilivan	5:c8918e47c566	639
mkilivan	5:c8918e47c566	640	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mkilivan	5:c8918e47c566	641	return (i == _FS_LOCK) ? 0 : 1;
mkilivan	5:c8918e47c566	642	}
mkilivan	5:c8918e47c566	643
mkilivan	5:c8918e47c566	644
mkilivan	5:c8918e47c566	645	static
mkilivan	5:c8918e47c566	646	UINT inc_lock ( /* Increment file open counter and returns its index (0:int error) */
mkilivan	5:c8918e47c566	647	DIR* dj, /* Directory object pointing the file to register or increment */
mkilivan	5:c8918e47c566	648	int acc /* Desired access mode (0:Read, !0:Write) */
mkilivan	5:c8918e47c566	649	)
mkilivan	5:c8918e47c566	650	{
mkilivan	5:c8918e47c566	651	UINT i;
mkilivan	5:c8918e47c566	652
mkilivan	5:c8918e47c566	653
mkilivan	5:c8918e47c566	654	for (i = 0; i < _FS_LOCK; i++) { /* Find the file */
mkilivan	5:c8918e47c566	655	if (Files[i].fs == dj->fs &&
mkilivan	5:c8918e47c566	656	Files[i].clu == dj->sclust &&
mkilivan	5:c8918e47c566	657	Files[i].idx == dj->index) break;
mkilivan	5:c8918e47c566	658	}
mkilivan	5:c8918e47c566	659
mkilivan	5:c8918e47c566	660	if (i == _FS_LOCK) { /* Not opened. Register it as new. */
mkilivan	5:c8918e47c566	661	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mkilivan	5:c8918e47c566	662	if (i == _FS_LOCK) return 0; /* No space to register (int err) */
mkilivan	5:c8918e47c566	663	Files[i].fs = dj->fs;
mkilivan	5:c8918e47c566	664	Files[i].clu = dj->sclust;
mkilivan	5:c8918e47c566	665	Files[i].idx = dj->index;
mkilivan	5:c8918e47c566	666	Files[i].ctr = 0;
mkilivan	5:c8918e47c566	667	}
mkilivan	5:c8918e47c566	668
mkilivan	5:c8918e47c566	669	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
mkilivan	5:c8918e47c566	670
mkilivan	5:c8918e47c566	671	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
mkilivan	5:c8918e47c566	672
mkilivan	5:c8918e47c566	673	return i + 1;
mkilivan	5:c8918e47c566	674	}
mkilivan	5:c8918e47c566	675
mkilivan	5:c8918e47c566	676
mkilivan	5:c8918e47c566	677	static
mkilivan	5:c8918e47c566	678	FRESULT dec_lock ( /* Decrement file open counter */
mkilivan	5:c8918e47c566	679	UINT i /* Semaphore index */
mkilivan	5:c8918e47c566	680	)
mkilivan	5:c8918e47c566	681	{
mkilivan	5:c8918e47c566	682	WORD n;
mkilivan	5:c8918e47c566	683	FRESULT res;
mkilivan	5:c8918e47c566	684
mkilivan	5:c8918e47c566	685
mkilivan	5:c8918e47c566	686	if (--i < _FS_LOCK) {
mkilivan	5:c8918e47c566	687	n = Files[i].ctr;
mkilivan	5:c8918e47c566	688	if (n == 0x100) n = 0;
mkilivan	5:c8918e47c566	689	if (n) n--;
mkilivan	5:c8918e47c566	690	Files[i].ctr = n;
mkilivan	5:c8918e47c566	691	if (!n) Files[i].fs = 0;
mkilivan	5:c8918e47c566	692	res = FR_OK;
mkilivan	5:c8918e47c566	693	} else {
mkilivan	5:c8918e47c566	694	res = FR_INT_ERR;
mkilivan	5:c8918e47c566	695	}
mkilivan	5:c8918e47c566	696	return res;
mkilivan	5:c8918e47c566	697	}
mkilivan	5:c8918e47c566	698
mkilivan	5:c8918e47c566	699
mkilivan	5:c8918e47c566	700	static
mkilivan	5:c8918e47c566	701	void clear_lock ( /* Clear lock entries of the volume */
mkilivan	5:c8918e47c566	702	FATFS *fs
mkilivan	5:c8918e47c566	703	)
mkilivan	5:c8918e47c566	704	{
mkilivan	5:c8918e47c566	705	UINT i;
mkilivan	5:c8918e47c566	706
mkilivan	5:c8918e47c566	707	for (i = 0; i < _FS_LOCK; i++) {
mkilivan	5:c8918e47c566	708	if (Files[i].fs == fs) Files[i].fs = 0;
mkilivan	5:c8918e47c566	709	}
mkilivan	5:c8918e47c566	710	}
mkilivan	5:c8918e47c566	711	#endif
mkilivan	5:c8918e47c566	712
mkilivan	5:c8918e47c566	713
mkilivan	5:c8918e47c566	714
mkilivan	5:c8918e47c566	715	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	716	/* Change window offset */
mkilivan	5:c8918e47c566	717	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	718
mkilivan	5:c8918e47c566	719	static
mkilivan	5:c8918e47c566	720	FRESULT move_window (
mkilivan	5:c8918e47c566	721	FATFS fs, / File system object */
mkilivan	5:c8918e47c566	722	DWORD sector /* Sector number to make appearance in the fs->win[] */
mkilivan	5:c8918e47c566	723	) /* Move to zero only writes back dirty window */
mkilivan	5:c8918e47c566	724	{
mkilivan	5:c8918e47c566	725	DWORD wsect;
mkilivan	5:c8918e47c566	726
mkilivan	5:c8918e47c566	727
mkilivan	5:c8918e47c566	728	wsect = fs->winsect;
mkilivan	5:c8918e47c566	729	if (wsect != sector) { /* Changed current window */
mkilivan	5:c8918e47c566	730	#if !_FS_READONLY
mkilivan	5:c8918e47c566	731	if (fs->wflag) { /* Write back dirty window if needed */
mkilivan	5:c8918e47c566	732	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK)
mkilivan	5:c8918e47c566	733	return FR_DISK_ERR;
mkilivan	5:c8918e47c566	734	fs->wflag = 0;
mkilivan	5:c8918e47c566	735	if (wsect < (fs->fatbase + fs->fsize)) { /* In FAT area */
mkilivan	5:c8918e47c566	736	BYTE nf;
mkilivan	5:c8918e47c566	737	for (nf = fs->n_fats; nf > 1; nf--) { /* Reflect the change to all FAT copies */
mkilivan	5:c8918e47c566	738	wsect += fs->fsize;
mkilivan	5:c8918e47c566	739	disk_write(fs->drv, fs->win, wsect, 1);
mkilivan	5:c8918e47c566	740	}
mkilivan	5:c8918e47c566	741	}
mkilivan	5:c8918e47c566	742	}
mkilivan	5:c8918e47c566	743	#endif
mkilivan	5:c8918e47c566	744	if (sector) {
mkilivan	5:c8918e47c566	745	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK)
mkilivan	5:c8918e47c566	746	return FR_DISK_ERR;
mkilivan	5:c8918e47c566	747	fs->winsect = sector;
mkilivan	5:c8918e47c566	748	}
mkilivan	5:c8918e47c566	749	}
mkilivan	5:c8918e47c566	750
mkilivan	5:c8918e47c566	751	return FR_OK;
mkilivan	5:c8918e47c566	752	}
mkilivan	5:c8918e47c566	753
mkilivan	5:c8918e47c566	754
mkilivan	5:c8918e47c566	755
mkilivan	5:c8918e47c566	756
mkilivan	5:c8918e47c566	757	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	758	/* Clean-up cached data */
mkilivan	5:c8918e47c566	759	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	760	#if !_FS_READONLY
mkilivan	5:c8918e47c566	761	static
mkilivan	5:c8918e47c566	762	FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */
mkilivan	5:c8918e47c566	763	FATFS fs / File system object */
mkilivan	5:c8918e47c566	764	)
mkilivan	5:c8918e47c566	765	{
mkilivan	5:c8918e47c566	766	FRESULT res;
mkilivan	5:c8918e47c566	767
mkilivan	5:c8918e47c566	768
mkilivan	5:c8918e47c566	769	res = move_window(fs, 0);
mkilivan	5:c8918e47c566	770	if (res == FR_OK) {
mkilivan	5:c8918e47c566	771	/* Update FSInfo sector if needed */
mkilivan	5:c8918e47c566	772	if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
mkilivan	5:c8918e47c566	773	fs->winsect = 0;
mkilivan	5:c8918e47c566	774	/* Create FSInfo structure */
mkilivan	5:c8918e47c566	775	mem_set(fs->win, 0, 512);
mkilivan	5:c8918e47c566	776	ST_WORD(fs->win+BS_55AA, 0xAA55);
mkilivan	5:c8918e47c566	777	ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
mkilivan	5:c8918e47c566	778	ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
mkilivan	5:c8918e47c566	779	ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
mkilivan	5:c8918e47c566	780	ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
mkilivan	5:c8918e47c566	781	/* Write it into the FSInfo sector */
mkilivan	5:c8918e47c566	782	disk_write(fs->drv, fs->win, fs->fsi_sector, 1);
mkilivan	5:c8918e47c566	783	fs->fsi_flag = 0;
mkilivan	5:c8918e47c566	784	}
mkilivan	5:c8918e47c566	785	/* Make sure that no pending write process in the physical drive */
mkilivan	5:c8918e47c566	786	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
mkilivan	5:c8918e47c566	787	res = FR_DISK_ERR;
mkilivan	5:c8918e47c566	788	}
mkilivan	5:c8918e47c566	789
mkilivan	5:c8918e47c566	790	return res;
mkilivan	5:c8918e47c566	791	}
mkilivan	5:c8918e47c566	792	#endif
mkilivan	5:c8918e47c566	793
mkilivan	5:c8918e47c566	794
mkilivan	5:c8918e47c566	795
mkilivan	5:c8918e47c566	796
mkilivan	5:c8918e47c566	797	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	798	/* Get sector# from cluster# */
mkilivan	5:c8918e47c566	799	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	800
mkilivan	5:c8918e47c566	801
mkilivan	5:c8918e47c566	802	DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
mkilivan	5:c8918e47c566	803	FATFS fs, / File system object */
mkilivan	5:c8918e47c566	804	DWORD clst /* Cluster# to be converted */
mkilivan	5:c8918e47c566	805	)
mkilivan	5:c8918e47c566	806	{
mkilivan	5:c8918e47c566	807	clst -= 2;
mkilivan	5:c8918e47c566	808	if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
mkilivan	5:c8918e47c566	809	return clst * fs->csize + fs->database;
mkilivan	5:c8918e47c566	810	}
mkilivan	5:c8918e47c566	811
mkilivan	5:c8918e47c566	812
mkilivan	5:c8918e47c566	813
mkilivan	5:c8918e47c566	814
mkilivan	5:c8918e47c566	815	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	816	/* FAT access - Read value of a FAT entry */
mkilivan	5:c8918e47c566	817	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	818
mkilivan	5:c8918e47c566	819
mkilivan	5:c8918e47c566	820	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
mkilivan	5:c8918e47c566	821	FATFS fs, / File system object */
mkilivan	5:c8918e47c566	822	DWORD clst /* Cluster# to get the link information */
mkilivan	5:c8918e47c566	823	)
mkilivan	5:c8918e47c566	824	{
mkilivan	5:c8918e47c566	825	UINT wc, bc;
mkilivan	5:c8918e47c566	826	BYTE *p;
mkilivan	5:c8918e47c566	827
mkilivan	5:c8918e47c566	828
mkilivan	5:c8918e47c566	829	if (clst < 2 \|\| clst >= fs->n_fatent) /* Check range */
mkilivan	5:c8918e47c566	830	return 1;
mkilivan	5:c8918e47c566	831
mkilivan	5:c8918e47c566	832	switch (fs->fs_type) {
mkilivan	5:c8918e47c566	833	case FS_FAT12 :
mkilivan	5:c8918e47c566	834	bc = (UINT)clst; bc += bc / 2;
mkilivan	5:c8918e47c566	835	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
mkilivan	5:c8918e47c566	836	wc = fs->win[bc % SS(fs)]; bc++;
mkilivan	5:c8918e47c566	837	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
mkilivan	5:c8918e47c566	838	wc \|= fs->win[bc % SS(fs)] << 8;
mkilivan	5:c8918e47c566	839	return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
mkilivan	5:c8918e47c566	840
mkilivan	5:c8918e47c566	841	case FS_FAT16 :
mkilivan	5:c8918e47c566	842	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
mkilivan	5:c8918e47c566	843	p = &fs->win[clst * 2 % SS(fs)];
mkilivan	5:c8918e47c566	844	return LD_WORD(p);
mkilivan	5:c8918e47c566	845
mkilivan	5:c8918e47c566	846	case FS_FAT32 :
mkilivan	5:c8918e47c566	847	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
mkilivan	5:c8918e47c566	848	p = &fs->win[clst * 4 % SS(fs)];
mkilivan	5:c8918e47c566	849	return LD_DWORD(p) & 0x0FFFFFFF;
mkilivan	5:c8918e47c566	850	}
mkilivan	5:c8918e47c566	851
mkilivan	5:c8918e47c566	852	return 0xFFFFFFFF; /* An error occurred at the disk I/O layer */
mkilivan	5:c8918e47c566	853	}
mkilivan	5:c8918e47c566	854
mkilivan	5:c8918e47c566	855
mkilivan	5:c8918e47c566	856
mkilivan	5:c8918e47c566	857
mkilivan	5:c8918e47c566	858	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	859	/* FAT access - Change value of a FAT entry */
mkilivan	5:c8918e47c566	860	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	861	#if !_FS_READONLY
mkilivan	5:c8918e47c566	862
mkilivan	5:c8918e47c566	863	FRESULT put_fat (
mkilivan	5:c8918e47c566	864	FATFS fs, / File system object */
mkilivan	5:c8918e47c566	865	DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
mkilivan	5:c8918e47c566	866	DWORD val /* New value to mark the cluster */
mkilivan	5:c8918e47c566	867	)
mkilivan	5:c8918e47c566	868	{
mkilivan	5:c8918e47c566	869	UINT bc;
mkilivan	5:c8918e47c566	870	BYTE *p;
mkilivan	5:c8918e47c566	871	FRESULT res;
mkilivan	5:c8918e47c566	872
mkilivan	5:c8918e47c566	873
mkilivan	5:c8918e47c566	874	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
mkilivan	5:c8918e47c566	875	res = FR_INT_ERR;
mkilivan	5:c8918e47c566	876
mkilivan	5:c8918e47c566	877	} else {
mkilivan	5:c8918e47c566	878	switch (fs->fs_type) {
mkilivan	5:c8918e47c566	879	case FS_FAT12 :
mkilivan	5:c8918e47c566	880	bc = (UINT)clst; bc += bc / 2;
mkilivan	5:c8918e47c566	881	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mkilivan	5:c8918e47c566	882	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	883	p = &fs->win[bc % SS(fs)];
mkilivan	5:c8918e47c566	884	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
mkilivan	5:c8918e47c566	885	bc++;
mkilivan	5:c8918e47c566	886	fs->wflag = 1;
mkilivan	5:c8918e47c566	887	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mkilivan	5:c8918e47c566	888	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	889	p = &fs->win[bc % SS(fs)];
mkilivan	5:c8918e47c566	890	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
mkilivan	5:c8918e47c566	891	break;
mkilivan	5:c8918e47c566	892
mkilivan	5:c8918e47c566	893	case FS_FAT16 :
mkilivan	5:c8918e47c566	894	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
mkilivan	5:c8918e47c566	895	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	896	p = &fs->win[clst * 2 % SS(fs)];
mkilivan	5:c8918e47c566	897	ST_WORD(p, (WORD)val);
mkilivan	5:c8918e47c566	898	break;
mkilivan	5:c8918e47c566	899
mkilivan	5:c8918e47c566	900	case FS_FAT32 :
mkilivan	5:c8918e47c566	901	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
mkilivan	5:c8918e47c566	902	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	903	p = &fs->win[clst * 4 % SS(fs)];
mkilivan	5:c8918e47c566	904	val \|= LD_DWORD(p) & 0xF0000000;
mkilivan	5:c8918e47c566	905	ST_DWORD(p, val);
mkilivan	5:c8918e47c566	906	break;
mkilivan	5:c8918e47c566	907
mkilivan	5:c8918e47c566	908	default :
mkilivan	5:c8918e47c566	909	res = FR_INT_ERR;
mkilivan	5:c8918e47c566	910	}
mkilivan	5:c8918e47c566	911	fs->wflag = 1;
mkilivan	5:c8918e47c566	912	}
mkilivan	5:c8918e47c566	913
mkilivan	5:c8918e47c566	914	return res;
mkilivan	5:c8918e47c566	915	}
mkilivan	5:c8918e47c566	916	#endif /* !_FS_READONLY */
mkilivan	5:c8918e47c566	917
mkilivan	5:c8918e47c566	918
mkilivan	5:c8918e47c566	919
mkilivan	5:c8918e47c566	920
mkilivan	5:c8918e47c566	921	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	922	/* FAT handling - Remove a cluster chain */
mkilivan	5:c8918e47c566	923	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	924	#if !_FS_READONLY
mkilivan	5:c8918e47c566	925	static
mkilivan	5:c8918e47c566	926	FRESULT remove_chain (
mkilivan	5:c8918e47c566	927	FATFS fs, / File system object */
mkilivan	5:c8918e47c566	928	DWORD clst /* Cluster# to remove a chain from */
mkilivan	5:c8918e47c566	929	)
mkilivan	5:c8918e47c566	930	{
mkilivan	5:c8918e47c566	931	FRESULT res;
mkilivan	5:c8918e47c566	932	DWORD nxt;
mkilivan	5:c8918e47c566	933	#if _USE_ERASE
mkilivan	5:c8918e47c566	934	DWORD scl = clst, ecl = clst, rt[2];
mkilivan	5:c8918e47c566	935	#endif
mkilivan	5:c8918e47c566	936
mkilivan	5:c8918e47c566	937	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
mkilivan	5:c8918e47c566	938	res = FR_INT_ERR;
mkilivan	5:c8918e47c566	939
mkilivan	5:c8918e47c566	940	} else {
mkilivan	5:c8918e47c566	941	res = FR_OK;
mkilivan	5:c8918e47c566	942	while (clst < fs->n_fatent) { /* Not a last link? */
mkilivan	5:c8918e47c566	943	nxt = get_fat(fs, clst); /* Get cluster status */
mkilivan	5:c8918e47c566	944	if (nxt == 0) break; /* Empty cluster? */
mkilivan	5:c8918e47c566	945	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
mkilivan	5:c8918e47c566	946	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
mkilivan	5:c8918e47c566	947	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
mkilivan	5:c8918e47c566	948	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	949	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */
mkilivan	5:c8918e47c566	950	fs->free_clust++;
mkilivan	5:c8918e47c566	951	fs->fsi_flag = 1;
mkilivan	5:c8918e47c566	952	}
mkilivan	5:c8918e47c566	953	#if _USE_ERASE
mkilivan	5:c8918e47c566	954	if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
mkilivan	5:c8918e47c566	955	ecl = nxt;
mkilivan	5:c8918e47c566	956	} else { /* End of contiguous clusters */
mkilivan	5:c8918e47c566	957	rt[0] = clust2sect(fs, scl); /* Start sector */
mkilivan	5:c8918e47c566	958	rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
mkilivan	5:c8918e47c566	959	disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, rt); /* Erase the block */
mkilivan	5:c8918e47c566	960	scl = ecl = nxt;
mkilivan	5:c8918e47c566	961	}
mkilivan	5:c8918e47c566	962	#endif
mkilivan	5:c8918e47c566	963	clst = nxt; /* Next cluster */
mkilivan	5:c8918e47c566	964	}
mkilivan	5:c8918e47c566	965	}
mkilivan	5:c8918e47c566	966
mkilivan	5:c8918e47c566	967	return res;
mkilivan	5:c8918e47c566	968	}
mkilivan	5:c8918e47c566	969	#endif
mkilivan	5:c8918e47c566	970
mkilivan	5:c8918e47c566	971
mkilivan	5:c8918e47c566	972
mkilivan	5:c8918e47c566	973
mkilivan	5:c8918e47c566	974	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	975	/* FAT handling - Stretch or Create a cluster chain */
mkilivan	5:c8918e47c566	976	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	977	#if !_FS_READONLY
mkilivan	5:c8918e47c566	978	static
mkilivan	5:c8918e47c566	979	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
mkilivan	5:c8918e47c566	980	FATFS fs, / File system object */
mkilivan	5:c8918e47c566	981	DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
mkilivan	5:c8918e47c566	982	)
mkilivan	5:c8918e47c566	983	{
mkilivan	5:c8918e47c566	984	DWORD cs, ncl, scl;
mkilivan	5:c8918e47c566	985	FRESULT res;
mkilivan	5:c8918e47c566	986
mkilivan	5:c8918e47c566	987
mkilivan	5:c8918e47c566	988	if (clst == 0) { /* Create a new chain */
mkilivan	5:c8918e47c566	989	scl = fs->last_clust; /* Get suggested start point */
mkilivan	5:c8918e47c566	990	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
mkilivan	5:c8918e47c566	991	}
mkilivan	5:c8918e47c566	992	else { /* Stretch the current chain */
mkilivan	5:c8918e47c566	993	cs = get_fat(fs, clst); /* Check the cluster status */
mkilivan	5:c8918e47c566	994	if (cs < 2) return 1; /* It is an invalid cluster */
mkilivan	5:c8918e47c566	995	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
mkilivan	5:c8918e47c566	996	scl = clst;
mkilivan	5:c8918e47c566	997	}
mkilivan	5:c8918e47c566	998
mkilivan	5:c8918e47c566	999	ncl = scl; /* Start cluster */
mkilivan	5:c8918e47c566	1000	for (;;) {
mkilivan	5:c8918e47c566	1001	ncl++; /* Next cluster */
mkilivan	5:c8918e47c566	1002	if (ncl >= fs->n_fatent) { /* Wrap around */
mkilivan	5:c8918e47c566	1003	ncl = 2;
mkilivan	5:c8918e47c566	1004	if (ncl > scl) return 0; /* No free cluster */
mkilivan	5:c8918e47c566	1005	}
mkilivan	5:c8918e47c566	1006	cs = get_fat(fs, ncl); /* Get the cluster status */
mkilivan	5:c8918e47c566	1007	if (cs == 0) break; /* Found a free cluster */
mkilivan	5:c8918e47c566	1008	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
mkilivan	5:c8918e47c566	1009	return cs;
mkilivan	5:c8918e47c566	1010	if (ncl == scl) return 0; /* No free cluster */
mkilivan	5:c8918e47c566	1011	}
mkilivan	5:c8918e47c566	1012
mkilivan	5:c8918e47c566	1013	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
mkilivan	5:c8918e47c566	1014	if (res == FR_OK && clst != 0) {
mkilivan	5:c8918e47c566	1015	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
mkilivan	5:c8918e47c566	1016	}
mkilivan	5:c8918e47c566	1017	if (res == FR_OK) {
mkilivan	5:c8918e47c566	1018	fs->last_clust = ncl; /* Update FSINFO */
mkilivan	5:c8918e47c566	1019	if (fs->free_clust != 0xFFFFFFFF) {
mkilivan	5:c8918e47c566	1020	fs->free_clust--;
mkilivan	5:c8918e47c566	1021	fs->fsi_flag = 1;
mkilivan	5:c8918e47c566	1022	}
mkilivan	5:c8918e47c566	1023	} else {
mkilivan	5:c8918e47c566	1024	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
mkilivan	5:c8918e47c566	1025	}
mkilivan	5:c8918e47c566	1026
mkilivan	5:c8918e47c566	1027	return ncl; /* Return new cluster number or error code */
mkilivan	5:c8918e47c566	1028	}
mkilivan	5:c8918e47c566	1029	#endif /* !_FS_READONLY */
mkilivan	5:c8918e47c566	1030
mkilivan	5:c8918e47c566	1031
mkilivan	5:c8918e47c566	1032
mkilivan	5:c8918e47c566	1033	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1034	/* FAT handling - Convert offset into cluster with link map table */
mkilivan	5:c8918e47c566	1035	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1036
mkilivan	5:c8918e47c566	1037	#if _USE_FASTSEEK
mkilivan	5:c8918e47c566	1038	static
mkilivan	5:c8918e47c566	1039	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
mkilivan	5:c8918e47c566	1040	FIL* fp, /* Pointer to the file object */
mkilivan	5:c8918e47c566	1041	DWORD ofs /* File offset to be converted to cluster# */
mkilivan	5:c8918e47c566	1042	)
mkilivan	5:c8918e47c566	1043	{
mkilivan	5:c8918e47c566	1044	DWORD cl, ncl, *tbl;
mkilivan	5:c8918e47c566	1045
mkilivan	5:c8918e47c566	1046
mkilivan	5:c8918e47c566	1047	tbl = fp->cltbl + 1; /* Top of CLMT */
mkilivan	5:c8918e47c566	1048	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
mkilivan	5:c8918e47c566	1049	for (;;) {
mkilivan	5:c8918e47c566	1050	ncl = tbl++; / Number of cluters in the fragment */
mkilivan	5:c8918e47c566	1051	if (!ncl) return 0; /* End of table? (error) */
mkilivan	5:c8918e47c566	1052	if (cl < ncl) break; /* In this fragment? */
mkilivan	5:c8918e47c566	1053	cl -= ncl; tbl++; /* Next fragment */
mkilivan	5:c8918e47c566	1054	}
mkilivan	5:c8918e47c566	1055	return cl + tbl; / Return the cluster number */
mkilivan	5:c8918e47c566	1056	}
mkilivan	5:c8918e47c566	1057	#endif /* _USE_FASTSEEK */
mkilivan	5:c8918e47c566	1058
mkilivan	5:c8918e47c566	1059
mkilivan	5:c8918e47c566	1060
mkilivan	5:c8918e47c566	1061	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1062	/* Directory handling - Set directory index */
mkilivan	5:c8918e47c566	1063	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1064
mkilivan	5:c8918e47c566	1065	static
mkilivan	5:c8918e47c566	1066	FRESULT dir_sdi (
mkilivan	5:c8918e47c566	1067	FATFS_DIR dj, / Pointer to directory object */
mkilivan	5:c8918e47c566	1068	WORD idx /* Index of directory table */
mkilivan	5:c8918e47c566	1069	)
mkilivan	5:c8918e47c566	1070	{
mkilivan	5:c8918e47c566	1071	DWORD clst;
mkilivan	5:c8918e47c566	1072	WORD ic;
mkilivan	5:c8918e47c566	1073
mkilivan	5:c8918e47c566	1074
mkilivan	5:c8918e47c566	1075	dj->index = idx;
mkilivan	5:c8918e47c566	1076	clst = dj->sclust;
mkilivan	5:c8918e47c566	1077	if (clst == 1 \|\| clst >= dj->fs->n_fatent) /* Check start cluster range */
mkilivan	5:c8918e47c566	1078	return FR_INT_ERR;
mkilivan	5:c8918e47c566	1079	if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
mkilivan	5:c8918e47c566	1080	clst = dj->fs->dirbase;
mkilivan	5:c8918e47c566	1081
mkilivan	5:c8918e47c566	1082	if (clst == 0) { /* Static table (root-dir in FAT12/16) */
mkilivan	5:c8918e47c566	1083	dj->clust = clst;
mkilivan	5:c8918e47c566	1084	if (idx >= dj->fs->n_rootdir) /* Index is out of range */
mkilivan	5:c8918e47c566	1085	return FR_INT_ERR;
mkilivan	5:c8918e47c566	1086	dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
mkilivan	5:c8918e47c566	1087	}
mkilivan	5:c8918e47c566	1088	else { /* Dynamic table (sub-dirs or root-dir in FAT32) */
mkilivan	5:c8918e47c566	1089	ic = SS(dj->fs) / SZ_DIR * dj->fs->csize; /* Entries per cluster */
mkilivan	5:c8918e47c566	1090	while (idx >= ic) { /* Follow cluster chain */
mkilivan	5:c8918e47c566	1091	clst = get_fat(dj->fs, clst); /* Get next cluster */
mkilivan	5:c8918e47c566	1092	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
mkilivan	5:c8918e47c566	1093	if (clst < 2 \|\| clst >= dj->fs->n_fatent) /* Reached to end of table or int error */
mkilivan	5:c8918e47c566	1094	return FR_INT_ERR;
mkilivan	5:c8918e47c566	1095	idx -= ic;
mkilivan	5:c8918e47c566	1096	}
mkilivan	5:c8918e47c566	1097	dj->clust = clst;
mkilivan	5:c8918e47c566	1098	dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
mkilivan	5:c8918e47c566	1099	}
mkilivan	5:c8918e47c566	1100
mkilivan	5:c8918e47c566	1101	dj->dir = dj->fs->win + (idx % (SS(dj->fs) / SZ_DIR)) * SZ_DIR; /* Ptr to the entry in the sector */
mkilivan	5:c8918e47c566	1102
mkilivan	5:c8918e47c566	1103	return FR_OK; /* Seek succeeded */
mkilivan	5:c8918e47c566	1104	}
mkilivan	5:c8918e47c566	1105
mkilivan	5:c8918e47c566	1106
mkilivan	5:c8918e47c566	1107
mkilivan	5:c8918e47c566	1108
mkilivan	5:c8918e47c566	1109	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1110	/* Directory handling - Move directory table index next */
mkilivan	5:c8918e47c566	1111	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1112
mkilivan	5:c8918e47c566	1113	static
mkilivan	5:c8918e47c566	1114	FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not stretch */
mkilivan	5:c8918e47c566	1115	FATFS_DIR dj, / Pointer to directory object */
mkilivan	5:c8918e47c566	1116	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
mkilivan	5:c8918e47c566	1117	)
mkilivan	5:c8918e47c566	1118	{
mkilivan	5:c8918e47c566	1119	DWORD clst;
mkilivan	5:c8918e47c566	1120	WORD i;
mkilivan	5:c8918e47c566	1121
mkilivan	5:c8918e47c566	1122
mkilivan	5:c8918e47c566	1123	stretch = stretch; /* To suppress warning on read-only cfg. */
mkilivan	5:c8918e47c566	1124	i = dj->index + 1;
mkilivan	5:c8918e47c566	1125	if (!i \|\| !dj->sect) /* Report EOT when index has reached 65535 */
mkilivan	5:c8918e47c566	1126	return FR_NO_FILE;
mkilivan	5:c8918e47c566	1127
mkilivan	5:c8918e47c566	1128	if (!(i % (SS(dj->fs) / SZ_DIR))) { /* Sector changed? */
mkilivan	5:c8918e47c566	1129	dj->sect++; /* Next sector */
mkilivan	5:c8918e47c566	1130
mkilivan	5:c8918e47c566	1131	if (dj->clust == 0) { /* Static table */
mkilivan	5:c8918e47c566	1132	if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */
mkilivan	5:c8918e47c566	1133	return FR_NO_FILE;
mkilivan	5:c8918e47c566	1134	}
mkilivan	5:c8918e47c566	1135	else { /* Dynamic table */
mkilivan	5:c8918e47c566	1136	if (((i / (SS(dj->fs) / SZ_DIR)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
mkilivan	5:c8918e47c566	1137	clst = get_fat(dj->fs, dj->clust); /* Get next cluster */
mkilivan	5:c8918e47c566	1138	if (clst <= 1) return FR_INT_ERR;
mkilivan	5:c8918e47c566	1139	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mkilivan	5:c8918e47c566	1140	if (clst >= dj->fs->n_fatent) { /* When it reached end of dynamic table */
mkilivan	5:c8918e47c566	1141	#if !_FS_READONLY
mkilivan	5:c8918e47c566	1142	BYTE c;
mkilivan	5:c8918e47c566	1143	if (!stretch) return FR_NO_FILE; /* When do not stretch, report EOT */
mkilivan	5:c8918e47c566	1144	clst = create_chain(dj->fs, dj->clust); /* Stretch cluster chain */
mkilivan	5:c8918e47c566	1145	if (clst == 0) return FR_DENIED; /* No free cluster */
mkilivan	5:c8918e47c566	1146	if (clst == 1) return FR_INT_ERR;
mkilivan	5:c8918e47c566	1147	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mkilivan	5:c8918e47c566	1148	/* Clean-up stretched table */
mkilivan	5:c8918e47c566	1149	if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */
mkilivan	5:c8918e47c566	1150	mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */
mkilivan	5:c8918e47c566	1151	dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */
mkilivan	5:c8918e47c566	1152	for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */
mkilivan	5:c8918e47c566	1153	dj->fs->wflag = 1;
mkilivan	5:c8918e47c566	1154	if (move_window(dj->fs, 0)) return FR_DISK_ERR;
mkilivan	5:c8918e47c566	1155	dj->fs->winsect++;
mkilivan	5:c8918e47c566	1156	}
mkilivan	5:c8918e47c566	1157	dj->fs->winsect -= c; /* Rewind window address */
mkilivan	5:c8918e47c566	1158	#else
mkilivan	5:c8918e47c566	1159	return FR_NO_FILE; /* Report EOT */
mkilivan	5:c8918e47c566	1160	#endif
mkilivan	5:c8918e47c566	1161	}
mkilivan	5:c8918e47c566	1162	dj->clust = clst; /* Initialize data for new cluster */
mkilivan	5:c8918e47c566	1163	dj->sect = clust2sect(dj->fs, clst);
mkilivan	5:c8918e47c566	1164	}
mkilivan	5:c8918e47c566	1165	}
mkilivan	5:c8918e47c566	1166	}
mkilivan	5:c8918e47c566	1167
mkilivan	5:c8918e47c566	1168	dj->index = i;
mkilivan	5:c8918e47c566	1169	dj->dir = dj->fs->win + (i % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;
mkilivan	5:c8918e47c566	1170
mkilivan	5:c8918e47c566	1171	return FR_OK;
mkilivan	5:c8918e47c566	1172	}
mkilivan	5:c8918e47c566	1173
mkilivan	5:c8918e47c566	1174
mkilivan	5:c8918e47c566	1175
mkilivan	5:c8918e47c566	1176
mkilivan	5:c8918e47c566	1177	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1178	/* Directory handling - Load/Store start cluster number */
mkilivan	5:c8918e47c566	1179	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1180
mkilivan	5:c8918e47c566	1181	static
mkilivan	5:c8918e47c566	1182	DWORD ld_clust (
mkilivan	5:c8918e47c566	1183	FATFS fs, / Pointer to the fs object */
mkilivan	5:c8918e47c566	1184	BYTE dir / Pointer to the directory entry */
mkilivan	5:c8918e47c566	1185	)
mkilivan	5:c8918e47c566	1186	{
mkilivan	5:c8918e47c566	1187	DWORD cl;
mkilivan	5:c8918e47c566	1188
mkilivan	5:c8918e47c566	1189	cl = LD_WORD(dir+DIR_FstClusLO);
mkilivan	5:c8918e47c566	1190	if (fs->fs_type == FS_FAT32)
mkilivan	5:c8918e47c566	1191	cl \|= (DWORD)LD_WORD(dir+DIR_FstClusHI) << 16;
mkilivan	5:c8918e47c566	1192
mkilivan	5:c8918e47c566	1193	return cl;
mkilivan	5:c8918e47c566	1194	}
mkilivan	5:c8918e47c566	1195
mkilivan	5:c8918e47c566	1196
mkilivan	5:c8918e47c566	1197	#if !_FS_READONLY
mkilivan	5:c8918e47c566	1198	static
mkilivan	5:c8918e47c566	1199	void st_clust (
mkilivan	5:c8918e47c566	1200	BYTE dir, / Pointer to the directory entry */
mkilivan	5:c8918e47c566	1201	DWORD cl /* Value to be set */
mkilivan	5:c8918e47c566	1202	)
mkilivan	5:c8918e47c566	1203	{
mkilivan	5:c8918e47c566	1204	ST_WORD(dir+DIR_FstClusLO, cl);
mkilivan	5:c8918e47c566	1205	ST_WORD(dir+DIR_FstClusHI, cl >> 16);
mkilivan	5:c8918e47c566	1206	}
mkilivan	5:c8918e47c566	1207	#endif
mkilivan	5:c8918e47c566	1208
mkilivan	5:c8918e47c566	1209
mkilivan	5:c8918e47c566	1210
mkilivan	5:c8918e47c566	1211	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1212	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
mkilivan	5:c8918e47c566	1213	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1214	#if _USE_LFN
mkilivan	5:c8918e47c566	1215	static
mkilivan	5:c8918e47c566	1216	const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN chars in the directory entry */
mkilivan	5:c8918e47c566	1217
mkilivan	5:c8918e47c566	1218
mkilivan	5:c8918e47c566	1219	static
mkilivan	5:c8918e47c566	1220	int cmp_lfn ( /* 1:Matched, 0:Not matched */
mkilivan	5:c8918e47c566	1221	WCHAR lfnbuf, / Pointer to the LFN to be compared */
mkilivan	5:c8918e47c566	1222	BYTE dir / Pointer to the directory entry containing a part of LFN */
mkilivan	5:c8918e47c566	1223	)
mkilivan	5:c8918e47c566	1224	{
mkilivan	5:c8918e47c566	1225	UINT i, s;
mkilivan	5:c8918e47c566	1226	WCHAR wc, uc;
mkilivan	5:c8918e47c566	1227
mkilivan	5:c8918e47c566	1228
mkilivan	5:c8918e47c566	1229	i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
mkilivan	5:c8918e47c566	1230	s = 0; wc = 1;
mkilivan	5:c8918e47c566	1231	do {
mkilivan	5:c8918e47c566	1232	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
mkilivan	5:c8918e47c566	1233	if (wc) { /* Last char has not been processed */
mkilivan	5:c8918e47c566	1234	wc = ff_wtoupper(uc); /* Convert it to upper case */
mkilivan	5:c8918e47c566	1235	if (i >= _MAX_LFN \|\| wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
mkilivan	5:c8918e47c566	1236	return 0; /* Not matched */
mkilivan	5:c8918e47c566	1237	} else {
mkilivan	5:c8918e47c566	1238	if (uc != 0xFFFF) return 0; /* Check filler */
mkilivan	5:c8918e47c566	1239	}
mkilivan	5:c8918e47c566	1240	} while (++s < 13); /* Repeat until all chars in the entry are checked */
mkilivan	5:c8918e47c566	1241
mkilivan	5:c8918e47c566	1242	if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) /* Last segment matched but different length */
mkilivan	5:c8918e47c566	1243	return 0;
mkilivan	5:c8918e47c566	1244
mkilivan	5:c8918e47c566	1245	return 1; /* The part of LFN matched */
mkilivan	5:c8918e47c566	1246	}
mkilivan	5:c8918e47c566	1247
mkilivan	5:c8918e47c566	1248
mkilivan	5:c8918e47c566	1249
mkilivan	5:c8918e47c566	1250	static
mkilivan	5:c8918e47c566	1251	int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
mkilivan	5:c8918e47c566	1252	WCHAR lfnbuf, / Pointer to the Unicode-LFN buffer */
mkilivan	5:c8918e47c566	1253	BYTE dir / Pointer to the directory entry */
mkilivan	5:c8918e47c566	1254	)
mkilivan	5:c8918e47c566	1255	{
mkilivan	5:c8918e47c566	1256	UINT i, s;
mkilivan	5:c8918e47c566	1257	WCHAR wc, uc;
mkilivan	5:c8918e47c566	1258
mkilivan	5:c8918e47c566	1259
mkilivan	5:c8918e47c566	1260	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
mkilivan	5:c8918e47c566	1261
mkilivan	5:c8918e47c566	1262	s = 0; wc = 1;
mkilivan	5:c8918e47c566	1263	do {
mkilivan	5:c8918e47c566	1264	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
mkilivan	5:c8918e47c566	1265	if (wc) { /* Last char has not been processed */
mkilivan	5:c8918e47c566	1266	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mkilivan	5:c8918e47c566	1267	lfnbuf[i++] = wc = uc; /* Store it */
mkilivan	5:c8918e47c566	1268	} else {
mkilivan	5:c8918e47c566	1269	if (uc != 0xFFFF) return 0; /* Check filler */
mkilivan	5:c8918e47c566	1270	}
mkilivan	5:c8918e47c566	1271	} while (++s < 13); /* Read all character in the entry */
mkilivan	5:c8918e47c566	1272
mkilivan	5:c8918e47c566	1273	if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
mkilivan	5:c8918e47c566	1274	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mkilivan	5:c8918e47c566	1275	lfnbuf[i] = 0;
mkilivan	5:c8918e47c566	1276	}
mkilivan	5:c8918e47c566	1277
mkilivan	5:c8918e47c566	1278	return 1;
mkilivan	5:c8918e47c566	1279	}
mkilivan	5:c8918e47c566	1280
mkilivan	5:c8918e47c566	1281
mkilivan	5:c8918e47c566	1282	#if !_FS_READONLY
mkilivan	5:c8918e47c566	1283	static
mkilivan	5:c8918e47c566	1284	void fit_lfn (
mkilivan	5:c8918e47c566	1285	const WCHAR lfnbuf, / Pointer to the LFN buffer */
mkilivan	5:c8918e47c566	1286	BYTE dir, / Pointer to the directory entry */
mkilivan	5:c8918e47c566	1287	BYTE ord, /* LFN order (1-20) */
mkilivan	5:c8918e47c566	1288	BYTE sum /* SFN sum */
mkilivan	5:c8918e47c566	1289	)
mkilivan	5:c8918e47c566	1290	{
mkilivan	5:c8918e47c566	1291	UINT i, s;
mkilivan	5:c8918e47c566	1292	WCHAR wc;
mkilivan	5:c8918e47c566	1293
mkilivan	5:c8918e47c566	1294
mkilivan	5:c8918e47c566	1295	dir[LDIR_Chksum] = sum; /* Set check sum */
mkilivan	5:c8918e47c566	1296	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
mkilivan	5:c8918e47c566	1297	dir[LDIR_Type] = 0;
mkilivan	5:c8918e47c566	1298	ST_WORD(dir+LDIR_FstClusLO, 0);
mkilivan	5:c8918e47c566	1299
mkilivan	5:c8918e47c566	1300	i = (ord - 1) * 13; /* Get offset in the LFN buffer */
mkilivan	5:c8918e47c566	1301	s = wc = 0;
mkilivan	5:c8918e47c566	1302	do {
mkilivan	5:c8918e47c566	1303	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */
mkilivan	5:c8918e47c566	1304	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
mkilivan	5:c8918e47c566	1305	if (!wc) wc = 0xFFFF; /* Padding chars following last char */
mkilivan	5:c8918e47c566	1306	} while (++s < 13);
mkilivan	5:c8918e47c566	1307	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLE; /* Bottom LFN part is the start of LFN sequence */
mkilivan	5:c8918e47c566	1308	dir[LDIR_Ord] = ord; /* Set the LFN order */
mkilivan	5:c8918e47c566	1309	}
mkilivan	5:c8918e47c566	1310
mkilivan	5:c8918e47c566	1311	#endif
mkilivan	5:c8918e47c566	1312	#endif
mkilivan	5:c8918e47c566	1313
mkilivan	5:c8918e47c566	1314
mkilivan	5:c8918e47c566	1315
mkilivan	5:c8918e47c566	1316	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1317	/* Create numbered name */
mkilivan	5:c8918e47c566	1318	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1319	#if _USE_LFN
mkilivan	5:c8918e47c566	1320	void gen_numname (
mkilivan	5:c8918e47c566	1321	BYTE dst, / Pointer to generated SFN */
mkilivan	5:c8918e47c566	1322	const BYTE src, / Pointer to source SFN to be modified */
mkilivan	5:c8918e47c566	1323	const WCHAR lfn, / Pointer to LFN */
mkilivan	5:c8918e47c566	1324	WORD seq /* Sequence number */
mkilivan	5:c8918e47c566	1325	)
mkilivan	5:c8918e47c566	1326	{
mkilivan	5:c8918e47c566	1327	BYTE ns[8], c;
mkilivan	5:c8918e47c566	1328	UINT i, j;
mkilivan	5:c8918e47c566	1329
mkilivan	5:c8918e47c566	1330
mkilivan	5:c8918e47c566	1331	mem_cpy(dst, src, 11);
mkilivan	5:c8918e47c566	1332
mkilivan	5:c8918e47c566	1333	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
mkilivan	5:c8918e47c566	1334	do seq = (seq >> 1) + (seq << 15) + (WORD)lfn++; while (lfn);
mkilivan	5:c8918e47c566	1335	}
mkilivan	5:c8918e47c566	1336
mkilivan	5:c8918e47c566	1337	/* itoa (hexdecimal) */
mkilivan	5:c8918e47c566	1338	i = 7;
mkilivan	5:c8918e47c566	1339	do {
mkilivan	5:c8918e47c566	1340	c = (seq % 16) + '0';
mkilivan	5:c8918e47c566	1341	if (c > '9') c += 7;
mkilivan	5:c8918e47c566	1342	ns[i--] = c;
mkilivan	5:c8918e47c566	1343	seq /= 16;
mkilivan	5:c8918e47c566	1344	} while (seq);
mkilivan	5:c8918e47c566	1345	ns[i] = '~';
mkilivan	5:c8918e47c566	1346
mkilivan	5:c8918e47c566	1347	/* Append the number */
mkilivan	5:c8918e47c566	1348	for (j = 0; j < i && dst[j] != ' '; j++) {
mkilivan	5:c8918e47c566	1349	if (IsDBCS1(dst[j])) {
mkilivan	5:c8918e47c566	1350	if (j == i - 1) break;
mkilivan	5:c8918e47c566	1351	j++;
mkilivan	5:c8918e47c566	1352	}
mkilivan	5:c8918e47c566	1353	}
mkilivan	5:c8918e47c566	1354	do {
mkilivan	5:c8918e47c566	1355	dst[j++] = (i < 8) ? ns[i++] : ' ';
mkilivan	5:c8918e47c566	1356	} while (j < 8);
mkilivan	5:c8918e47c566	1357	}
mkilivan	5:c8918e47c566	1358	#endif
mkilivan	5:c8918e47c566	1359
mkilivan	5:c8918e47c566	1360
mkilivan	5:c8918e47c566	1361
mkilivan	5:c8918e47c566	1362
mkilivan	5:c8918e47c566	1363	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1364	/* Calculate sum of an SFN */
mkilivan	5:c8918e47c566	1365	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1366	#if _USE_LFN
mkilivan	5:c8918e47c566	1367	static
mkilivan	5:c8918e47c566	1368	BYTE sum_sfn (
mkilivan	5:c8918e47c566	1369	const BYTE dir / Ptr to directory entry */
mkilivan	5:c8918e47c566	1370	)
mkilivan	5:c8918e47c566	1371	{
mkilivan	5:c8918e47c566	1372	BYTE sum = 0;
mkilivan	5:c8918e47c566	1373	UINT n = 11;
mkilivan	5:c8918e47c566	1374
mkilivan	5:c8918e47c566	1375	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
mkilivan	5:c8918e47c566	1376	return sum;
mkilivan	5:c8918e47c566	1377	}
mkilivan	5:c8918e47c566	1378	#endif
mkilivan	5:c8918e47c566	1379
mkilivan	5:c8918e47c566	1380
mkilivan	5:c8918e47c566	1381
mkilivan	5:c8918e47c566	1382
mkilivan	5:c8918e47c566	1383	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1384	/* Directory handling - Find an object in the directory */
mkilivan	5:c8918e47c566	1385	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1386
mkilivan	5:c8918e47c566	1387	static
mkilivan	5:c8918e47c566	1388	FRESULT dir_find (
mkilivan	5:c8918e47c566	1389	FATFS_DIR dj / Pointer to the directory object linked to the file name */
mkilivan	5:c8918e47c566	1390	)
mkilivan	5:c8918e47c566	1391	{
mkilivan	5:c8918e47c566	1392	FRESULT res;
mkilivan	5:c8918e47c566	1393	BYTE c, *dir;
mkilivan	5:c8918e47c566	1394	#if _USE_LFN
mkilivan	5:c8918e47c566	1395	BYTE a, ord, sum;
mkilivan	5:c8918e47c566	1396	#endif
mkilivan	5:c8918e47c566	1397
mkilivan	5:c8918e47c566	1398	res = dir_sdi(dj, 0); /* Rewind directory object */
mkilivan	5:c8918e47c566	1399	if (res != FR_OK) return res;
mkilivan	5:c8918e47c566	1400
mkilivan	5:c8918e47c566	1401	#if _USE_LFN
mkilivan	5:c8918e47c566	1402	ord = sum = 0xFF;
mkilivan	5:c8918e47c566	1403	#endif
mkilivan	5:c8918e47c566	1404	do {
mkilivan	5:c8918e47c566	1405	res = move_window(dj->fs, dj->sect);
mkilivan	5:c8918e47c566	1406	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	1407	dir = dj->dir; /* Ptr to the directory entry of current index */
mkilivan	5:c8918e47c566	1408	c = dir[DIR_Name];
mkilivan	5:c8918e47c566	1409	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mkilivan	5:c8918e47c566	1410	#if _USE_LFN /* LFN configuration */
mkilivan	5:c8918e47c566	1411	a = dir[DIR_Attr] & AM_MASK;
mkilivan	5:c8918e47c566	1412	if (c == DDE \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
mkilivan	5:c8918e47c566	1413	ord = 0xFF;
mkilivan	5:c8918e47c566	1414	} else {
mkilivan	5:c8918e47c566	1415	if (a == AM_LFN) { /* An LFN entry is found */
mkilivan	5:c8918e47c566	1416	if (dj->lfn) {
mkilivan	5:c8918e47c566	1417	if (c & LLE) { /* Is it start of LFN sequence? */
mkilivan	5:c8918e47c566	1418	sum = dir[LDIR_Chksum];
mkilivan	5:c8918e47c566	1419	c &= ~LLE; ord = c; /* LFN start order */
mkilivan	5:c8918e47c566	1420	dj->lfn_idx = dj->index;
mkilivan	5:c8918e47c566	1421	}
mkilivan	5:c8918e47c566	1422	/* Check validity of the LFN entry and compare it with given name */
mkilivan	5:c8918e47c566	1423	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
mkilivan	5:c8918e47c566	1424	}
mkilivan	5:c8918e47c566	1425	} else { /* An SFN entry is found */
mkilivan	5:c8918e47c566	1426	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
mkilivan	5:c8918e47c566	1427	ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */
mkilivan	5:c8918e47c566	1428	if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */
mkilivan	5:c8918e47c566	1429	}
mkilivan	5:c8918e47c566	1430	}
mkilivan	5:c8918e47c566	1431	#else /* Non LFN configuration */
mkilivan	5:c8918e47c566	1432	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
mkilivan	5:c8918e47c566	1433	break;
mkilivan	5:c8918e47c566	1434	#endif
mkilivan	5:c8918e47c566	1435	res = dir_next(dj, 0); /* Next entry */
mkilivan	5:c8918e47c566	1436	} while (res == FR_OK);
mkilivan	5:c8918e47c566	1437
mkilivan	5:c8918e47c566	1438	return res;
mkilivan	5:c8918e47c566	1439	}
mkilivan	5:c8918e47c566	1440
mkilivan	5:c8918e47c566	1441
mkilivan	5:c8918e47c566	1442
mkilivan	5:c8918e47c566	1443
mkilivan	5:c8918e47c566	1444	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1445	/* Read an object from the directory */
mkilivan	5:c8918e47c566	1446	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1447	#if _FS_MINIMIZE <= 1
mkilivan	5:c8918e47c566	1448	static
mkilivan	5:c8918e47c566	1449	FRESULT dir_read (
mkilivan	5:c8918e47c566	1450	FATFS_DIR dj / Pointer to the directory object that pointing the entry to be read */
mkilivan	5:c8918e47c566	1451	)
mkilivan	5:c8918e47c566	1452	{
mkilivan	5:c8918e47c566	1453	FRESULT res;
mkilivan	5:c8918e47c566	1454	BYTE c, *dir;
mkilivan	5:c8918e47c566	1455	#if _USE_LFN
mkilivan	5:c8918e47c566	1456	BYTE a, ord = 0xFF, sum = 0xFF;
mkilivan	5:c8918e47c566	1457	#endif
mkilivan	5:c8918e47c566	1458
mkilivan	5:c8918e47c566	1459	res = FR_NO_FILE;
mkilivan	5:c8918e47c566	1460	while (dj->sect) {
mkilivan	5:c8918e47c566	1461	res = move_window(dj->fs, dj->sect);
mkilivan	5:c8918e47c566	1462	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	1463	dir = dj->dir; /* Ptr to the directory entry of current index */
mkilivan	5:c8918e47c566	1464	c = dir[DIR_Name];
mkilivan	5:c8918e47c566	1465	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mkilivan	5:c8918e47c566	1466	#if _USE_LFN /* LFN configuration */
mkilivan	5:c8918e47c566	1467	a = dir[DIR_Attr] & AM_MASK;
mkilivan	5:c8918e47c566	1468	if (c == DDE \|\| (!_FS_RPATH && c == '.') \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
mkilivan	5:c8918e47c566	1469	ord = 0xFF;
mkilivan	5:c8918e47c566	1470	} else {
mkilivan	5:c8918e47c566	1471	if (a == AM_LFN) { /* An LFN entry is found */
mkilivan	5:c8918e47c566	1472	if (c & LLE) { /* Is it start of LFN sequence? */
mkilivan	5:c8918e47c566	1473	sum = dir[LDIR_Chksum];
mkilivan	5:c8918e47c566	1474	c &= ~LLE; ord = c;
mkilivan	5:c8918e47c566	1475	dj->lfn_idx = dj->index;
mkilivan	5:c8918e47c566	1476	}
mkilivan	5:c8918e47c566	1477	/* Check LFN validity and capture it */
mkilivan	5:c8918e47c566	1478	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
mkilivan	5:c8918e47c566	1479	} else { /* An SFN entry is found */
mkilivan	5:c8918e47c566	1480	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
mkilivan	5:c8918e47c566	1481	dj->lfn_idx = 0xFFFF; /* It has no LFN. */
mkilivan	5:c8918e47c566	1482	break;
mkilivan	5:c8918e47c566	1483	}
mkilivan	5:c8918e47c566	1484	}
mkilivan	5:c8918e47c566	1485	#else /* Non LFN configuration */
mkilivan	5:c8918e47c566	1486	if (c != DDE && (_FS_RPATH \|\| c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
mkilivan	5:c8918e47c566	1487	break;
mkilivan	5:c8918e47c566	1488	#endif
mkilivan	5:c8918e47c566	1489	res = dir_next(dj, 0); /* Next entry */
mkilivan	5:c8918e47c566	1490	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	1491	}
mkilivan	5:c8918e47c566	1492
mkilivan	5:c8918e47c566	1493	if (res != FR_OK) dj->sect = 0;
mkilivan	5:c8918e47c566	1494
mkilivan	5:c8918e47c566	1495	return res;
mkilivan	5:c8918e47c566	1496	}
mkilivan	5:c8918e47c566	1497	#endif
mkilivan	5:c8918e47c566	1498
mkilivan	5:c8918e47c566	1499
mkilivan	5:c8918e47c566	1500
mkilivan	5:c8918e47c566	1501	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1502	/* Register an object to the directory */
mkilivan	5:c8918e47c566	1503	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1504	#if !_FS_READONLY
mkilivan	5:c8918e47c566	1505	static
mkilivan	5:c8918e47c566	1506	FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
mkilivan	5:c8918e47c566	1507	FATFS_DIR dj / Target directory with object name to be created */
mkilivan	5:c8918e47c566	1508	)
mkilivan	5:c8918e47c566	1509	{
mkilivan	5:c8918e47c566	1510	FRESULT res;
mkilivan	5:c8918e47c566	1511	BYTE c, *dir;
mkilivan	5:c8918e47c566	1512	#if _USE_LFN /* LFN configuration */
mkilivan	5:c8918e47c566	1513	WORD n, ne, is;
mkilivan	5:c8918e47c566	1514	BYTE sn[12], *fn, sum;
mkilivan	5:c8918e47c566	1515	WCHAR *lfn;
mkilivan	5:c8918e47c566	1516
mkilivan	5:c8918e47c566	1517
mkilivan	5:c8918e47c566	1518	fn = dj->fn; lfn = dj->lfn;
mkilivan	5:c8918e47c566	1519	mem_cpy(sn, fn, 12);
mkilivan	5:c8918e47c566	1520
mkilivan	5:c8918e47c566	1521	if (_FS_RPATH && (sn[NS] & NS_DOT)) /* Cannot create dot entry */
mkilivan	5:c8918e47c566	1522	return FR_INVALID_NAME;
mkilivan	5:c8918e47c566	1523
mkilivan	5:c8918e47c566	1524	if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
mkilivan	5:c8918e47c566	1525	fn[NS] = 0; dj->lfn = 0; /* Find only SFN */
mkilivan	5:c8918e47c566	1526	for (n = 1; n < 100; n++) {
mkilivan	5:c8918e47c566	1527	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
mkilivan	5:c8918e47c566	1528	res = dir_find(dj); /* Check if the name collides with existing SFN */
mkilivan	5:c8918e47c566	1529	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	1530	}
mkilivan	5:c8918e47c566	1531	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
mkilivan	5:c8918e47c566	1532	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
mkilivan	5:c8918e47c566	1533	fn[NS] = sn[NS]; dj->lfn = lfn;
mkilivan	5:c8918e47c566	1534	}
mkilivan	5:c8918e47c566	1535
mkilivan	5:c8918e47c566	1536	if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve an SFN + LFN entries. */
mkilivan	5:c8918e47c566	1537	for (ne = 0; lfn[ne]; ne++) ;
mkilivan	5:c8918e47c566	1538	ne = (ne + 25) / 13;
mkilivan	5:c8918e47c566	1539	} else { /* Otherwise reserve only an SFN entry. */
mkilivan	5:c8918e47c566	1540	ne = 1;
mkilivan	5:c8918e47c566	1541	}
mkilivan	5:c8918e47c566	1542
mkilivan	5:c8918e47c566	1543	/* Reserve contiguous entries */
mkilivan	5:c8918e47c566	1544	res = dir_sdi(dj, 0);
mkilivan	5:c8918e47c566	1545	if (res != FR_OK) return res;
mkilivan	5:c8918e47c566	1546	n = is = 0;
mkilivan	5:c8918e47c566	1547	do {
mkilivan	5:c8918e47c566	1548	res = move_window(dj->fs, dj->sect);
mkilivan	5:c8918e47c566	1549	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	1550	c = dj->dir; / Check the entry status */
mkilivan	5:c8918e47c566	1551	if (c == DDE \|\| c == 0) { /* Is it a blank entry? */
mkilivan	5:c8918e47c566	1552	if (n == 0) is = dj->index; /* First index of the contiguous entry */
mkilivan	5:c8918e47c566	1553	if (++n == ne) break; /* A contiguous entry that required count is found */
mkilivan	5:c8918e47c566	1554	} else {
mkilivan	5:c8918e47c566	1555	n = 0; /* Not a blank entry. Restart to search */
mkilivan	5:c8918e47c566	1556	}
mkilivan	5:c8918e47c566	1557	res = dir_next(dj, 1); /* Next entry with table stretch */
mkilivan	5:c8918e47c566	1558	} while (res == FR_OK);
mkilivan	5:c8918e47c566	1559
mkilivan	5:c8918e47c566	1560	if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */
mkilivan	5:c8918e47c566	1561	res = dir_sdi(dj, is);
mkilivan	5:c8918e47c566	1562	if (res == FR_OK) {
mkilivan	5:c8918e47c566	1563	sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */
mkilivan	5:c8918e47c566	1564	ne--;
mkilivan	5:c8918e47c566	1565	do { /* Store LFN entries in bottom first */
mkilivan	5:c8918e47c566	1566	res = move_window(dj->fs, dj->sect);
mkilivan	5:c8918e47c566	1567	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	1568	fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
mkilivan	5:c8918e47c566	1569	dj->fs->wflag = 1;
mkilivan	5:c8918e47c566	1570	res = dir_next(dj, 0); /* Next entry */
mkilivan	5:c8918e47c566	1571	} while (res == FR_OK && --ne);
mkilivan	5:c8918e47c566	1572	}
mkilivan	5:c8918e47c566	1573	}
mkilivan	5:c8918e47c566	1574
mkilivan	5:c8918e47c566	1575	#else /* Non LFN configuration */
mkilivan	5:c8918e47c566	1576	res = dir_sdi(dj, 0);
mkilivan	5:c8918e47c566	1577	if (res == FR_OK) {
mkilivan	5:c8918e47c566	1578	do { /* Find a blank entry for the SFN */
mkilivan	5:c8918e47c566	1579	res = move_window(dj->fs, dj->sect);
mkilivan	5:c8918e47c566	1580	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	1581	c = *dj->dir;
mkilivan	5:c8918e47c566	1582	if (c == DDE \|\| c == 0) break; /* Is it a blank entry? */
mkilivan	5:c8918e47c566	1583	res = dir_next(dj, 1); /* Next entry with table stretch */
mkilivan	5:c8918e47c566	1584	} while (res == FR_OK);
mkilivan	5:c8918e47c566	1585	}
mkilivan	5:c8918e47c566	1586	#endif
mkilivan	5:c8918e47c566	1587
mkilivan	5:c8918e47c566	1588	if (res == FR_OK) { /* Initialize the SFN entry */
mkilivan	5:c8918e47c566	1589	res = move_window(dj->fs, dj->sect);
mkilivan	5:c8918e47c566	1590	if (res == FR_OK) {
mkilivan	5:c8918e47c566	1591	dir = dj->dir;
mkilivan	5:c8918e47c566	1592	mem_set(dir, 0, SZ_DIR); /* Clean the entry */
mkilivan	5:c8918e47c566	1593	mem_cpy(dir, dj->fn, 11); /* Put SFN */
mkilivan	5:c8918e47c566	1594	#if _USE_LFN
mkilivan	5:c8918e47c566	1595	dir[DIR_NTres] = (dj->fn+NS) & (NS_BODY \| NS_EXT); / Put NT flag */
mkilivan	5:c8918e47c566	1596	#endif
mkilivan	5:c8918e47c566	1597	dj->fs->wflag = 1;
mkilivan	5:c8918e47c566	1598	}
mkilivan	5:c8918e47c566	1599	}
mkilivan	5:c8918e47c566	1600
mkilivan	5:c8918e47c566	1601	return res;
mkilivan	5:c8918e47c566	1602	}
mkilivan	5:c8918e47c566	1603	#endif /* !_FS_READONLY */
mkilivan	5:c8918e47c566	1604
mkilivan	5:c8918e47c566	1605
mkilivan	5:c8918e47c566	1606
mkilivan	5:c8918e47c566	1607
mkilivan	5:c8918e47c566	1608	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1609	/* Remove an object from the directory */
mkilivan	5:c8918e47c566	1610	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1611	#if !_FS_READONLY && !_FS_MINIMIZE
mkilivan	5:c8918e47c566	1612	static
mkilivan	5:c8918e47c566	1613	FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
mkilivan	5:c8918e47c566	1614	FATFS_DIR dj / Directory object pointing the entry to be removed */
mkilivan	5:c8918e47c566	1615	)
mkilivan	5:c8918e47c566	1616	{
mkilivan	5:c8918e47c566	1617	FRESULT res;
mkilivan	5:c8918e47c566	1618	#if _USE_LFN /* LFN configuration */
mkilivan	5:c8918e47c566	1619	WORD i;
mkilivan	5:c8918e47c566	1620
mkilivan	5:c8918e47c566	1621	i = dj->index; /* SFN index */
mkilivan	5:c8918e47c566	1622	res = dir_sdi(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */
mkilivan	5:c8918e47c566	1623	if (res == FR_OK) {
mkilivan	5:c8918e47c566	1624	do {
mkilivan	5:c8918e47c566	1625	res = move_window(dj->fs, dj->sect);
mkilivan	5:c8918e47c566	1626	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	1627	dj->dir = DDE; / Mark the entry "deleted" */
mkilivan	5:c8918e47c566	1628	dj->fs->wflag = 1;
mkilivan	5:c8918e47c566	1629	if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
mkilivan	5:c8918e47c566	1630	res = dir_next(dj, 0); /* Next entry */
mkilivan	5:c8918e47c566	1631	} while (res == FR_OK);
mkilivan	5:c8918e47c566	1632	if (res == FR_NO_FILE) res = FR_INT_ERR;
mkilivan	5:c8918e47c566	1633	}
mkilivan	5:c8918e47c566	1634
mkilivan	5:c8918e47c566	1635	#else /* Non LFN configuration */
mkilivan	5:c8918e47c566	1636	res = dir_sdi(dj, dj->index);
mkilivan	5:c8918e47c566	1637	if (res == FR_OK) {
mkilivan	5:c8918e47c566	1638	res = move_window(dj->fs, dj->sect);
mkilivan	5:c8918e47c566	1639	if (res == FR_OK) {
mkilivan	5:c8918e47c566	1640	dj->dir = DDE; / Mark the entry "deleted" */
mkilivan	5:c8918e47c566	1641	dj->fs->wflag = 1;
mkilivan	5:c8918e47c566	1642	}
mkilivan	5:c8918e47c566	1643	}
mkilivan	5:c8918e47c566	1644	#endif
mkilivan	5:c8918e47c566	1645
mkilivan	5:c8918e47c566	1646	return res;
mkilivan	5:c8918e47c566	1647	}
mkilivan	5:c8918e47c566	1648	#endif /* !_FS_READONLY */
mkilivan	5:c8918e47c566	1649
mkilivan	5:c8918e47c566	1650
mkilivan	5:c8918e47c566	1651
mkilivan	5:c8918e47c566	1652
mkilivan	5:c8918e47c566	1653	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1654	/* Pick a segment and create the object name in directory form */
mkilivan	5:c8918e47c566	1655	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1656
mkilivan	5:c8918e47c566	1657	static
mkilivan	5:c8918e47c566	1658	FRESULT create_name (
mkilivan	5:c8918e47c566	1659	FATFS_DIR dj, / Pointer to the directory object */
mkilivan	5:c8918e47c566	1660	const TCHAR *path / Pointer to pointer to the segment in the path string */
mkilivan	5:c8918e47c566	1661	)
mkilivan	5:c8918e47c566	1662	{
mkilivan	5:c8918e47c566	1663	#ifdef _EXCVT
mkilivan	5:c8918e47c566	1664	static const BYTE excvt[] = _EXCVT; /* Upper conversion table for extended chars */
mkilivan	5:c8918e47c566	1665	#endif
mkilivan	5:c8918e47c566	1666
mkilivan	5:c8918e47c566	1667	#if _USE_LFN /* LFN configuration */
mkilivan	5:c8918e47c566	1668	BYTE b, cf;
mkilivan	5:c8918e47c566	1669	WCHAR w, *lfn;
mkilivan	5:c8918e47c566	1670	UINT i, ni, si, di;
mkilivan	5:c8918e47c566	1671	const TCHAR *p;
mkilivan	5:c8918e47c566	1672
mkilivan	5:c8918e47c566	1673	/* Create LFN in Unicode */
mkilivan	5:c8918e47c566	1674	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
mkilivan	5:c8918e47c566	1675	lfn = dj->lfn;
mkilivan	5:c8918e47c566	1676	si = di = 0;
mkilivan	5:c8918e47c566	1677	for (;;) {
mkilivan	5:c8918e47c566	1678	w = p[si++]; /* Get a character */
mkilivan	5:c8918e47c566	1679	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
mkilivan	5:c8918e47c566	1680	if (di >= _MAX_LFN) /* Reject too long name */
mkilivan	5:c8918e47c566	1681	return FR_INVALID_NAME;
mkilivan	5:c8918e47c566	1682	#if !_LFN_UNICODE
mkilivan	5:c8918e47c566	1683	w &= 0xFF;
mkilivan	5:c8918e47c566	1684	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
mkilivan	5:c8918e47c566	1685	b = (BYTE)p[si++]; /* Get 2nd byte */
mkilivan	5:c8918e47c566	1686	if (!IsDBCS2(b))
mkilivan	5:c8918e47c566	1687	return FR_INVALID_NAME; /* Reject invalid sequence */
mkilivan	5:c8918e47c566	1688	w = (w << 8) + b; /* Create a DBC */
mkilivan	5:c8918e47c566	1689	}
mkilivan	5:c8918e47c566	1690	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
mkilivan	5:c8918e47c566	1691	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
mkilivan	5:c8918e47c566	1692	#endif
mkilivan	5:c8918e47c566	1693	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal chars for LFN */
mkilivan	5:c8918e47c566	1694	return FR_INVALID_NAME;
mkilivan	5:c8918e47c566	1695	lfn[di++] = w; /* Store the Unicode char */
mkilivan	5:c8918e47c566	1696	}
mkilivan	5:c8918e47c566	1697	path = &p[si]; / Return pointer to the next segment */
mkilivan	5:c8918e47c566	1698	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
mkilivan	5:c8918e47c566	1699	#if _FS_RPATH
mkilivan	5:c8918e47c566	1700	if ((di == 1 && lfn[di-1] == '.') \|\| /* Is this a dot entry? */
mkilivan	5:c8918e47c566	1701	(di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
mkilivan	5:c8918e47c566	1702	lfn[di] = 0;
mkilivan	5:c8918e47c566	1703	for (i = 0; i < 11; i++)
mkilivan	5:c8918e47c566	1704	dj->fn[i] = (i < di) ? '.' : ' ';
mkilivan	5:c8918e47c566	1705	dj->fn[i] = cf \| NS_DOT; /* This is a dot entry */
mkilivan	5:c8918e47c566	1706	return FR_OK;
mkilivan	5:c8918e47c566	1707	}
mkilivan	5:c8918e47c566	1708	#endif
mkilivan	5:c8918e47c566	1709	while (di) { /* Strip trailing spaces and dots */
mkilivan	5:c8918e47c566	1710	w = lfn[di-1];
mkilivan	5:c8918e47c566	1711	if (w != ' ' && w != '.') break;
mkilivan	5:c8918e47c566	1712	di--;
mkilivan	5:c8918e47c566	1713	}
mkilivan	5:c8918e47c566	1714	if (!di) return FR_INVALID_NAME; /* Reject nul string */
mkilivan	5:c8918e47c566	1715
mkilivan	5:c8918e47c566	1716	lfn[di] = 0; /* LFN is created */
mkilivan	5:c8918e47c566	1717
mkilivan	5:c8918e47c566	1718	/* Create SFN in directory form */
mkilivan	5:c8918e47c566	1719	mem_set(dj->fn, ' ', 11);
mkilivan	5:c8918e47c566	1720	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
mkilivan	5:c8918e47c566	1721	if (si) cf \|= NS_LOSS \| NS_LFN;
mkilivan	5:c8918e47c566	1722	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
mkilivan	5:c8918e47c566	1723
mkilivan	5:c8918e47c566	1724	b = i = 0; ni = 8;
mkilivan	5:c8918e47c566	1725	for (;;) {
mkilivan	5:c8918e47c566	1726	w = lfn[si++]; /* Get an LFN char */
mkilivan	5:c8918e47c566	1727	if (!w) break; /* Break on end of the LFN */
mkilivan	5:c8918e47c566	1728	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
mkilivan	5:c8918e47c566	1729	cf \|= NS_LOSS \| NS_LFN; continue;
mkilivan	5:c8918e47c566	1730	}
mkilivan	5:c8918e47c566	1731
mkilivan	5:c8918e47c566	1732	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
mkilivan	5:c8918e47c566	1733	if (ni == 11) { /* Long extension */
mkilivan	5:c8918e47c566	1734	cf \|= NS_LOSS \| NS_LFN; break;
mkilivan	5:c8918e47c566	1735	}
mkilivan	5:c8918e47c566	1736	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
mkilivan	5:c8918e47c566	1737	if (si > di) break; /* No extension */
mkilivan	5:c8918e47c566	1738	si = di; i = 8; ni = 11; /* Enter extension section */
mkilivan	5:c8918e47c566	1739	b <<= 2; continue;
mkilivan	5:c8918e47c566	1740	}
mkilivan	5:c8918e47c566	1741
mkilivan	5:c8918e47c566	1742	if (w >= 0x80) { /* Non ASCII char */
mkilivan	5:c8918e47c566	1743	#ifdef _EXCVT
mkilivan	5:c8918e47c566	1744	w = ff_convert(w, 0); /* Unicode -> OEM code */
mkilivan	5:c8918e47c566	1745	if (w) w = excvt[w - 0x80]; /* Convert extended char to upper (SBCS) */
mkilivan	5:c8918e47c566	1746	#else
mkilivan	5:c8918e47c566	1747	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
mkilivan	5:c8918e47c566	1748	#endif
mkilivan	5:c8918e47c566	1749	cf \|= NS_LFN; /* Force create LFN entry */
mkilivan	5:c8918e47c566	1750	}
mkilivan	5:c8918e47c566	1751
mkilivan	5:c8918e47c566	1752	if (_DF1S && w >= 0x100) { /* Double byte char (always false on SBCS cfg) */
mkilivan	5:c8918e47c566	1753	if (i >= ni - 1) {
mkilivan	5:c8918e47c566	1754	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
mkilivan	5:c8918e47c566	1755	}
mkilivan	5:c8918e47c566	1756	dj->fn[i++] = (BYTE)(w >> 8);
mkilivan	5:c8918e47c566	1757	} else { /* Single byte char */
mkilivan	5:c8918e47c566	1758	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal chars for SFN */
mkilivan	5:c8918e47c566	1759	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
mkilivan	5:c8918e47c566	1760	} else {
mkilivan	5:c8918e47c566	1761	if (IsUpper(w)) { /* ASCII large capital */
mkilivan	5:c8918e47c566	1762	b \|= 2;
mkilivan	5:c8918e47c566	1763	} else {
mkilivan	5:c8918e47c566	1764	if (IsLower(w)) { /* ASCII small capital */
mkilivan	5:c8918e47c566	1765	b \|= 1; w -= 0x20;
mkilivan	5:c8918e47c566	1766	}
mkilivan	5:c8918e47c566	1767	}
mkilivan	5:c8918e47c566	1768	}
mkilivan	5:c8918e47c566	1769	}
mkilivan	5:c8918e47c566	1770	dj->fn[i++] = (BYTE)w;
mkilivan	5:c8918e47c566	1771	}
mkilivan	5:c8918e47c566	1772
mkilivan	5:c8918e47c566	1773	if (dj->fn[0] == DDE) dj->fn[0] = NDDE; /* If the first char collides with deleted mark, replace it with 0x05 */
mkilivan	5:c8918e47c566	1774
mkilivan	5:c8918e47c566	1775	if (ni == 8) b <<= 2;
mkilivan	5:c8918e47c566	1776	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
mkilivan	5:c8918e47c566	1777	cf \|= NS_LFN;
mkilivan	5:c8918e47c566	1778	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */
mkilivan	5:c8918e47c566	1779	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
mkilivan	5:c8918e47c566	1780	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
mkilivan	5:c8918e47c566	1781	}
mkilivan	5:c8918e47c566	1782
mkilivan	5:c8918e47c566	1783	dj->fn[NS] = cf; /* SFN is created */
mkilivan	5:c8918e47c566	1784
mkilivan	5:c8918e47c566	1785	return FR_OK;
mkilivan	5:c8918e47c566	1786
mkilivan	5:c8918e47c566	1787
mkilivan	5:c8918e47c566	1788	#else /* Non-LFN configuration */
mkilivan	5:c8918e47c566	1789	BYTE b, c, d, *sfn;
mkilivan	5:c8918e47c566	1790	UINT ni, si, i;
mkilivan	5:c8918e47c566	1791	const char *p;
mkilivan	5:c8918e47c566	1792
mkilivan	5:c8918e47c566	1793	/* Create file name in directory form */
mkilivan	5:c8918e47c566	1794	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
mkilivan	5:c8918e47c566	1795	sfn = dj->fn;
mkilivan	5:c8918e47c566	1796	mem_set(sfn, ' ', 11);
mkilivan	5:c8918e47c566	1797	si = i = b = 0; ni = 8;
mkilivan	5:c8918e47c566	1798	#if _FS_RPATH
mkilivan	5:c8918e47c566	1799	if (p[si] == '.') { /* Is this a dot entry? */
mkilivan	5:c8918e47c566	1800	for (;;) {
mkilivan	5:c8918e47c566	1801	c = (BYTE)p[si++];
mkilivan	5:c8918e47c566	1802	if (c != '.' \|\| si >= 3) break;
mkilivan	5:c8918e47c566	1803	sfn[i++] = c;
mkilivan	5:c8918e47c566	1804	}
mkilivan	5:c8918e47c566	1805	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
mkilivan	5:c8918e47c566	1806	path = &p[si]; / Return pointer to the next segment */
mkilivan	5:c8918e47c566	1807	sfn[NS] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
mkilivan	5:c8918e47c566	1808	return FR_OK;
mkilivan	5:c8918e47c566	1809	}
mkilivan	5:c8918e47c566	1810	#endif
mkilivan	5:c8918e47c566	1811	for (;;) {
mkilivan	5:c8918e47c566	1812	c = (BYTE)p[si++];
mkilivan	5:c8918e47c566	1813	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
mkilivan	5:c8918e47c566	1814	if (c == '.' \|\| i >= ni) {
mkilivan	5:c8918e47c566	1815	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
mkilivan	5:c8918e47c566	1816	i = 8; ni = 11;
mkilivan	5:c8918e47c566	1817	b <<= 2; continue;
mkilivan	5:c8918e47c566	1818	}
mkilivan	5:c8918e47c566	1819	if (c >= 0x80) { /* Extended char? */
mkilivan	5:c8918e47c566	1820	b \|= 3; /* Eliminate NT flag */
mkilivan	5:c8918e47c566	1821	#ifdef _EXCVT
mkilivan	5:c8918e47c566	1822	c = excvt[c - 0x80]; /* Upper conversion (SBCS) */
mkilivan	5:c8918e47c566	1823	#else
mkilivan	5:c8918e47c566	1824	#if !_DF1S /* ASCII only cfg */
mkilivan	5:c8918e47c566	1825	return FR_INVALID_NAME;
mkilivan	5:c8918e47c566	1826	#endif
mkilivan	5:c8918e47c566	1827	#endif
mkilivan	5:c8918e47c566	1828	}
mkilivan	5:c8918e47c566	1829	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
mkilivan	5:c8918e47c566	1830	d = (BYTE)p[si++]; /* Get 2nd byte */
mkilivan	5:c8918e47c566	1831	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
mkilivan	5:c8918e47c566	1832	return FR_INVALID_NAME;
mkilivan	5:c8918e47c566	1833	sfn[i++] = c;
mkilivan	5:c8918e47c566	1834	sfn[i++] = d;
mkilivan	5:c8918e47c566	1835	} else { /* Single byte code */
mkilivan	5:c8918e47c566	1836	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
mkilivan	5:c8918e47c566	1837	return FR_INVALID_NAME;
mkilivan	5:c8918e47c566	1838	if (IsUpper(c)) { /* ASCII large capital? */
mkilivan	5:c8918e47c566	1839	b \|= 2;
mkilivan	5:c8918e47c566	1840	} else {
mkilivan	5:c8918e47c566	1841	if (IsLower(c)) { /* ASCII small capital? */
mkilivan	5:c8918e47c566	1842	b \|= 1; c -= 0x20;
mkilivan	5:c8918e47c566	1843	}
mkilivan	5:c8918e47c566	1844	}
mkilivan	5:c8918e47c566	1845	sfn[i++] = c;
mkilivan	5:c8918e47c566	1846	}
mkilivan	5:c8918e47c566	1847	}
mkilivan	5:c8918e47c566	1848	path = &p[si]; / Return pointer to the next segment */
mkilivan	5:c8918e47c566	1849	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
mkilivan	5:c8918e47c566	1850
mkilivan	5:c8918e47c566	1851	if (!i) return FR_INVALID_NAME; /* Reject nul string */
mkilivan	5:c8918e47c566	1852	if (sfn[0] == DDE) sfn[0] = NDDE; /* When first char collides with DDE, replace it with 0x05 */
mkilivan	5:c8918e47c566	1853
mkilivan	5:c8918e47c566	1854	if (ni == 8) b <<= 2;
mkilivan	5:c8918e47c566	1855	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
mkilivan	5:c8918e47c566	1856	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
mkilivan	5:c8918e47c566	1857
mkilivan	5:c8918e47c566	1858	sfn[NS] = c; /* Store NT flag, File name is created */
mkilivan	5:c8918e47c566	1859
mkilivan	5:c8918e47c566	1860	return FR_OK;
mkilivan	5:c8918e47c566	1861	#endif
mkilivan	5:c8918e47c566	1862	}
mkilivan	5:c8918e47c566	1863
mkilivan	5:c8918e47c566	1864
mkilivan	5:c8918e47c566	1865
mkilivan	5:c8918e47c566	1866
mkilivan	5:c8918e47c566	1867	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1868	/* Get file information from directory entry */
mkilivan	5:c8918e47c566	1869	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1870	#if _FS_MINIMIZE <= 1
mkilivan	5:c8918e47c566	1871	static
mkilivan	5:c8918e47c566	1872	void get_fileinfo ( /* No return code */
mkilivan	5:c8918e47c566	1873	FATFS_DIR dj, / Pointer to the directory object */
mkilivan	5:c8918e47c566	1874	FILINFO fno / Pointer to the file information to be filled */
mkilivan	5:c8918e47c566	1875	)
mkilivan	5:c8918e47c566	1876	{
mkilivan	5:c8918e47c566	1877	UINT i;
mkilivan	5:c8918e47c566	1878	BYTE nt, *dir;
mkilivan	5:c8918e47c566	1879	TCHAR *p, c;
mkilivan	5:c8918e47c566	1880
mkilivan	5:c8918e47c566	1881
mkilivan	5:c8918e47c566	1882	p = fno->fname;
mkilivan	5:c8918e47c566	1883	if (dj->sect) {
mkilivan	5:c8918e47c566	1884	dir = dj->dir;
mkilivan	5:c8918e47c566	1885	nt = dir[DIR_NTres]; /* NT flag */
mkilivan	5:c8918e47c566	1886	for (i = 0; i < 8; i++) { /* Copy name body */
mkilivan	5:c8918e47c566	1887	c = dir[i];
mkilivan	5:c8918e47c566	1888	if (c == ' ') break;
mkilivan	5:c8918e47c566	1889	if (c == NDDE) c = (TCHAR)DDE;
mkilivan	5:c8918e47c566	1890	if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
mkilivan	5:c8918e47c566	1891	#if _LFN_UNICODE
mkilivan	5:c8918e47c566	1892	if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i+1]))
mkilivan	5:c8918e47c566	1893	c = (c << 8) \| dir[++i];
mkilivan	5:c8918e47c566	1894	c = ff_convert(c, 1);
mkilivan	5:c8918e47c566	1895	if (!c) c = '?';
mkilivan	5:c8918e47c566	1896	#endif
mkilivan	5:c8918e47c566	1897	*p++ = c;
mkilivan	5:c8918e47c566	1898	}
mkilivan	5:c8918e47c566	1899	if (dir[8] != ' ') { /* Copy name extension */
mkilivan	5:c8918e47c566	1900	*p++ = '.';
mkilivan	5:c8918e47c566	1901	for (i = 8; i < 11; i++) {
mkilivan	5:c8918e47c566	1902	c = dir[i];
mkilivan	5:c8918e47c566	1903	if (c == ' ') break;
mkilivan	5:c8918e47c566	1904	if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
mkilivan	5:c8918e47c566	1905	#if _LFN_UNICODE
mkilivan	5:c8918e47c566	1906	if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i+1]))
mkilivan	5:c8918e47c566	1907	c = (c << 8) \| dir[++i];
mkilivan	5:c8918e47c566	1908	c = ff_convert(c, 1);
mkilivan	5:c8918e47c566	1909	if (!c) c = '?';
mkilivan	5:c8918e47c566	1910	#endif
mkilivan	5:c8918e47c566	1911	*p++ = c;
mkilivan	5:c8918e47c566	1912	}
mkilivan	5:c8918e47c566	1913	}
mkilivan	5:c8918e47c566	1914	fno->fattrib = dir[DIR_Attr]; /* Attribute */
mkilivan	5:c8918e47c566	1915	fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
mkilivan	5:c8918e47c566	1916	fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
mkilivan	5:c8918e47c566	1917	fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
mkilivan	5:c8918e47c566	1918	}
mkilivan	5:c8918e47c566	1919	p = 0; / Terminate SFN str by a \0 */
mkilivan	5:c8918e47c566	1920
mkilivan	5:c8918e47c566	1921	#if _USE_LFN
mkilivan	5:c8918e47c566	1922	if (fno->lfname && fno->lfsize) {
mkilivan	5:c8918e47c566	1923	TCHAR *tp = fno->lfname;
mkilivan	5:c8918e47c566	1924	WCHAR w, *lfn;
mkilivan	5:c8918e47c566	1925
mkilivan	5:c8918e47c566	1926	i = 0;
mkilivan	5:c8918e47c566	1927	if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
mkilivan	5:c8918e47c566	1928	lfn = dj->lfn;
mkilivan	5:c8918e47c566	1929	while ((w = lfn++) != 0) { / Get an LFN char */
mkilivan	5:c8918e47c566	1930	#if !_LFN_UNICODE
mkilivan	5:c8918e47c566	1931	w = ff_convert(w, 0); /* Unicode -> OEM conversion */
mkilivan	5:c8918e47c566	1932	if (!w) { i = 0; break; } /* Could not convert, no LFN */
mkilivan	5:c8918e47c566	1933	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
mkilivan	5:c8918e47c566	1934	tp[i++] = (TCHAR)(w >> 8);
mkilivan	5:c8918e47c566	1935	#endif
mkilivan	5:c8918e47c566	1936	if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overflow, no LFN */
mkilivan	5:c8918e47c566	1937	tp[i++] = (TCHAR)w;
mkilivan	5:c8918e47c566	1938	}
mkilivan	5:c8918e47c566	1939	}
mkilivan	5:c8918e47c566	1940	tp[i] = 0; /* Terminate the LFN str by a \0 */
mkilivan	5:c8918e47c566	1941	}
mkilivan	5:c8918e47c566	1942	#endif
mkilivan	5:c8918e47c566	1943	}
mkilivan	5:c8918e47c566	1944	#endif /* _FS_MINIMIZE <= 1 */
mkilivan	5:c8918e47c566	1945
mkilivan	5:c8918e47c566	1946
mkilivan	5:c8918e47c566	1947
mkilivan	5:c8918e47c566	1948
mkilivan	5:c8918e47c566	1949	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1950	/* Follow a file path */
mkilivan	5:c8918e47c566	1951	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	1952
mkilivan	5:c8918e47c566	1953	static
mkilivan	5:c8918e47c566	1954	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
mkilivan	5:c8918e47c566	1955	FATFS_DIR dj, / Directory object to return last directory and found object */
mkilivan	5:c8918e47c566	1956	const TCHAR path / Full-path string to find a file or directory */
mkilivan	5:c8918e47c566	1957	)
mkilivan	5:c8918e47c566	1958	{
mkilivan	5:c8918e47c566	1959	FRESULT res;
mkilivan	5:c8918e47c566	1960	BYTE *dir, ns;
mkilivan	5:c8918e47c566	1961
mkilivan	5:c8918e47c566	1962
mkilivan	5:c8918e47c566	1963	#if _FS_RPATH
mkilivan	5:c8918e47c566	1964	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
mkilivan	5:c8918e47c566	1965	path++; dj->sclust = 0; /* Strip it and start from the root dir */
mkilivan	5:c8918e47c566	1966	} else { /* No heading separator */
mkilivan	5:c8918e47c566	1967	dj->sclust = dj->fs->cdir; /* Start from the current dir */
mkilivan	5:c8918e47c566	1968	}
mkilivan	5:c8918e47c566	1969	#else
mkilivan	5:c8918e47c566	1970	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
mkilivan	5:c8918e47c566	1971	path++;
mkilivan	5:c8918e47c566	1972	dj->sclust = 0; /* Start from the root dir */
mkilivan	5:c8918e47c566	1973	#endif
mkilivan	5:c8918e47c566	1974
mkilivan	5:c8918e47c566	1975	if ((UINT)path < ' ') { / Nul path means the start directory itself */
mkilivan	5:c8918e47c566	1976	res = dir_sdi(dj, 0);
mkilivan	5:c8918e47c566	1977	dj->dir = 0;
mkilivan	5:c8918e47c566	1978	} else { /* Follow path */
mkilivan	5:c8918e47c566	1979	for (;;) {
mkilivan	5:c8918e47c566	1980	res = create_name(dj, &path); /* Get a segment */
mkilivan	5:c8918e47c566	1981	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	1982	res = dir_find(dj); /* Find it */
mkilivan	5:c8918e47c566	1983	ns = *(dj->fn+NS);
mkilivan	5:c8918e47c566	1984	if (res != FR_OK) { /* Failed to find the object */
mkilivan	5:c8918e47c566	1985	if (res != FR_NO_FILE) break; /* Abort if any hard error occurred */
mkilivan	5:c8918e47c566	1986	/* Object not found */
mkilivan	5:c8918e47c566	1987	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exit */
mkilivan	5:c8918e47c566	1988	dj->sclust = 0; dj->dir = 0; /* It is the root dir */
mkilivan	5:c8918e47c566	1989	res = FR_OK;
mkilivan	5:c8918e47c566	1990	if (!(ns & NS_LAST)) continue;
mkilivan	5:c8918e47c566	1991	} else { /* Could not find the object */
mkilivan	5:c8918e47c566	1992	if (!(ns & NS_LAST)) res = FR_NO_PATH;
mkilivan	5:c8918e47c566	1993	}
mkilivan	5:c8918e47c566	1994	break;
mkilivan	5:c8918e47c566	1995	}
mkilivan	5:c8918e47c566	1996	if (ns & NS_LAST) break; /* Last segment match. Function completed. */
mkilivan	5:c8918e47c566	1997	dir = dj->dir; /* There is next segment. Follow the sub directory */
mkilivan	5:c8918e47c566	1998	if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
mkilivan	5:c8918e47c566	1999	res = FR_NO_PATH; break;
mkilivan	5:c8918e47c566	2000	}
mkilivan	5:c8918e47c566	2001	dj->sclust = ld_clust(dj->fs, dir);
mkilivan	5:c8918e47c566	2002	}
mkilivan	5:c8918e47c566	2003	}
mkilivan	5:c8918e47c566	2004
mkilivan	5:c8918e47c566	2005	return res;
mkilivan	5:c8918e47c566	2006	}
mkilivan	5:c8918e47c566	2007
mkilivan	5:c8918e47c566	2008
mkilivan	5:c8918e47c566	2009
mkilivan	5:c8918e47c566	2010
mkilivan	5:c8918e47c566	2011	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2012	/* Load a sector and check if it is an FAT Volume Boot Record */
mkilivan	5:c8918e47c566	2013	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2014
mkilivan	5:c8918e47c566	2015	static
mkilivan	5:c8918e47c566	2016	BYTE check_fs ( /* 0:FAT-VBR, 1:Any BR but not FAT, 2:Not a BR, 3:Disk error */
mkilivan	5:c8918e47c566	2017	FATFS fs, / File system object */
mkilivan	5:c8918e47c566	2018	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
mkilivan	5:c8918e47c566	2019	)
mkilivan	5:c8918e47c566	2020	{
mkilivan	5:c8918e47c566	2021	if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK) /* Load boot record */
mkilivan	5:c8918e47c566	2022	return 3;
mkilivan	5:c8918e47c566	2023	if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
mkilivan	5:c8918e47c566	2024	return 2;
mkilivan	5:c8918e47c566	2025
mkilivan	5:c8918e47c566	2026	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
mkilivan	5:c8918e47c566	2027	return 0;
mkilivan	5:c8918e47c566	2028	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
mkilivan	5:c8918e47c566	2029	return 0;
mkilivan	5:c8918e47c566	2030
mkilivan	5:c8918e47c566	2031	return 1;
mkilivan	5:c8918e47c566	2032	}
mkilivan	5:c8918e47c566	2033
mkilivan	5:c8918e47c566	2034
mkilivan	5:c8918e47c566	2035
mkilivan	5:c8918e47c566	2036
mkilivan	5:c8918e47c566	2037	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2038	/* Check if the file system object is valid or not */
mkilivan	5:c8918e47c566	2039	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2040
mkilivan	5:c8918e47c566	2041	static
mkilivan	5:c8918e47c566	2042	FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occurred */
mkilivan	5:c8918e47c566	2043	const TCHAR *path, / Pointer to pointer to the path name (drive number) */
mkilivan	5:c8918e47c566	2044	FATFS *rfs, / Pointer to pointer to the found file system object */
mkilivan	5:c8918e47c566	2045	BYTE wmode /* !=0: Check write protection for write access */
mkilivan	5:c8918e47c566	2046	)
mkilivan	5:c8918e47c566	2047	{
mkilivan	5:c8918e47c566	2048	BYTE fmt, b, pi, *tbl;
mkilivan	5:c8918e47c566	2049	UINT vol;
mkilivan	5:c8918e47c566	2050	DSTATUS stat;
mkilivan	5:c8918e47c566	2051	DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
mkilivan	5:c8918e47c566	2052	WORD nrsv;
mkilivan	5:c8918e47c566	2053	const TCHAR p = path;
mkilivan	5:c8918e47c566	2054	FATFS *fs;
mkilivan	5:c8918e47c566	2055
mkilivan	5:c8918e47c566	2056
mkilivan	5:c8918e47c566	2057	/* Get logical drive number from the path name */
mkilivan	5:c8918e47c566	2058	vol = p[0] - '0'; /* Is there a drive number? */
mkilivan	5:c8918e47c566	2059	if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */
mkilivan	5:c8918e47c566	2060	p += 2; path = p; / Return pointer to the path name */
mkilivan	5:c8918e47c566	2061	} else { /* No drive number is given */
mkilivan	5:c8918e47c566	2062	#if _FS_RPATH
mkilivan	5:c8918e47c566	2063	vol = CurrVol; /* Use current drive */
mkilivan	5:c8918e47c566	2064	#else
mkilivan	5:c8918e47c566	2065	vol = 0; /* Use drive 0 */
mkilivan	5:c8918e47c566	2066	#endif
mkilivan	5:c8918e47c566	2067	}
mkilivan	5:c8918e47c566	2068
mkilivan	5:c8918e47c566	2069	/* Check if the file system object is valid or not */
mkilivan	5:c8918e47c566	2070	*rfs = 0;
mkilivan	5:c8918e47c566	2071	if (vol >= _VOLUMES) /* Is the drive number valid? */
mkilivan	5:c8918e47c566	2072	return FR_INVALID_DRIVE;
mkilivan	5:c8918e47c566	2073	fs = FatFs[vol]; /* Get corresponding file system object */
mkilivan	5:c8918e47c566	2074	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
mkilivan	5:c8918e47c566	2075
mkilivan	5:c8918e47c566	2076	ENTER_FF(fs); /* Lock file system */
mkilivan	5:c8918e47c566	2077
mkilivan	5:c8918e47c566	2078	rfs = fs; / Return pointer to the corresponding file system object */
mkilivan	5:c8918e47c566	2079	if (fs->fs_type) { /* If the volume has been mounted */
mkilivan	5:c8918e47c566	2080	stat = disk_status(fs->drv);
mkilivan	5:c8918e47c566	2081	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */
mkilivan	5:c8918e47c566	2082	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
mkilivan	5:c8918e47c566	2083	return FR_WRITE_PROTECTED;
mkilivan	5:c8918e47c566	2084	return FR_OK; /* The file system object is valid */
mkilivan	5:c8918e47c566	2085	}
mkilivan	5:c8918e47c566	2086	}
mkilivan	5:c8918e47c566	2087
mkilivan	5:c8918e47c566	2088	/* The file system object is not valid. */
mkilivan	5:c8918e47c566	2089	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
mkilivan	5:c8918e47c566	2090
mkilivan	5:c8918e47c566	2091	fs->fs_type = 0; /* Clear the file system object */
mkilivan	5:c8918e47c566	2092	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
mkilivan	5:c8918e47c566	2093	stat = disk_initialize(fs->drv); /* Initialize the physical drive */
mkilivan	5:c8918e47c566	2094	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
mkilivan	5:c8918e47c566	2095	return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
mkilivan	5:c8918e47c566	2096	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
mkilivan	5:c8918e47c566	2097	return FR_WRITE_PROTECTED;
mkilivan	5:c8918e47c566	2098	#if _MAX_SS != 512 /* Get disk sector size (variable sector size cfg only) */
mkilivan	5:c8918e47c566	2099	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
mkilivan	5:c8918e47c566	2100	return FR_DISK_ERR;
mkilivan	5:c8918e47c566	2101	#endif
mkilivan	5:c8918e47c566	2102	/* Search FAT partition on the drive. Supports only generic partitions, FDISK and SFD. */
mkilivan	5:c8918e47c566	2103	fmt = check_fs(fs, bsect = 0); /* Load sector 0 and check if it is an FAT-VBR (in SFD) */
mkilivan	5:c8918e47c566	2104	if (LD2PT(vol) && !fmt) fmt = 1; /* Force non-SFD if the volume is forced partition */
mkilivan	5:c8918e47c566	2105	if (fmt == 1) { /* Not an FAT-VBR, the physical drive can be partitioned */
mkilivan	5:c8918e47c566	2106	/* Check the partition listed in the partition table */
mkilivan	5:c8918e47c566	2107	pi = LD2PT(vol);
mkilivan	5:c8918e47c566	2108	if (pi) pi--;
mkilivan	5:c8918e47c566	2109	tbl = &fs->win[MBR_Table + pi * SZ_PTE];/* Partition table */
mkilivan	5:c8918e47c566	2110	if (tbl[4]) { /* Is the partition existing? */
mkilivan	5:c8918e47c566	2111	bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
mkilivan	5:c8918e47c566	2112	fmt = check_fs(fs, bsect); /* Check the partition */
mkilivan	5:c8918e47c566	2113	}
mkilivan	5:c8918e47c566	2114	}
mkilivan	5:c8918e47c566	2115	if (fmt == 3) return FR_DISK_ERR;
mkilivan	5:c8918e47c566	2116	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
mkilivan	5:c8918e47c566	2117
mkilivan	5:c8918e47c566	2118	/* An FAT volume is found. Following code initializes the file system object */
mkilivan	5:c8918e47c566	2119
mkilivan	5:c8918e47c566	2120	if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
mkilivan	5:c8918e47c566	2121	return FR_NO_FILESYSTEM;
mkilivan	5:c8918e47c566	2122
mkilivan	5:c8918e47c566	2123	fasize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */
mkilivan	5:c8918e47c566	2124	if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32);
mkilivan	5:c8918e47c566	2125	fs->fsize = fasize;
mkilivan	5:c8918e47c566	2126
mkilivan	5:c8918e47c566	2127	fs->n_fats = b = fs->win[BPB_NumFATs]; /* Number of FAT copies */
mkilivan	5:c8918e47c566	2128	if (b != 1 && b != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
mkilivan	5:c8918e47c566	2129	fasize = b; / Number of sectors for FAT area */
mkilivan	5:c8918e47c566	2130
mkilivan	5:c8918e47c566	2131	fs->csize = b = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
mkilivan	5:c8918e47c566	2132	if (!b \|\| (b & (b - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
mkilivan	5:c8918e47c566	2133
mkilivan	5:c8918e47c566	2134	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Number of root directory entries */
mkilivan	5:c8918e47c566	2135	if (fs->n_rootdir % (SS(fs) / SZ_DIR)) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be sector aligned) */
mkilivan	5:c8918e47c566	2136
mkilivan	5:c8918e47c566	2137	tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */
mkilivan	5:c8918e47c566	2138	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
mkilivan	5:c8918e47c566	2139
mkilivan	5:c8918e47c566	2140	nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt); /* Number of reserved sectors */
mkilivan	5:c8918e47c566	2141	if (!nrsv) return FR_NO_FILESYSTEM; /* (BPB_RsvdSecCnt must not be 0) */
mkilivan	5:c8918e47c566	2142
mkilivan	5:c8918e47c566	2143	/* Determine the FAT sub type */
mkilivan	5:c8918e47c566	2144	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR); /* RSV+FAT+DIR */
mkilivan	5:c8918e47c566	2145	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mkilivan	5:c8918e47c566	2146	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
mkilivan	5:c8918e47c566	2147	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mkilivan	5:c8918e47c566	2148	fmt = FS_FAT12;
mkilivan	5:c8918e47c566	2149	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
mkilivan	5:c8918e47c566	2150	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
mkilivan	5:c8918e47c566	2151
mkilivan	5:c8918e47c566	2152	/* Boundaries and Limits */
mkilivan	5:c8918e47c566	2153	fs->n_fatent = nclst + 2; /* Number of FAT entries */
mkilivan	5:c8918e47c566	2154	fs->database = bsect + sysect; /* Data start sector */
mkilivan	5:c8918e47c566	2155	fs->fatbase = bsect + nrsv; /* FAT start sector */
mkilivan	5:c8918e47c566	2156	if (fmt == FS_FAT32) {
mkilivan	5:c8918e47c566	2157	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
mkilivan	5:c8918e47c566	2158	fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
mkilivan	5:c8918e47c566	2159	szbfat = fs->n_fatent * 4; /* (Required FAT size) */
mkilivan	5:c8918e47c566	2160	} else {
mkilivan	5:c8918e47c566	2161	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
mkilivan	5:c8918e47c566	2162	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
mkilivan	5:c8918e47c566	2163	szbfat = (fmt == FS_FAT16) ? /* (Required FAT size) */
mkilivan	5:c8918e47c566	2164	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
mkilivan	5:c8918e47c566	2165	}
mkilivan	5:c8918e47c566	2166	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than required) */
mkilivan	5:c8918e47c566	2167	return FR_NO_FILESYSTEM;
mkilivan	5:c8918e47c566	2168
mkilivan	5:c8918e47c566	2169	#if !_FS_READONLY
mkilivan	5:c8918e47c566	2170	/* Initialize cluster allocation information */
mkilivan	5:c8918e47c566	2171	fs->free_clust = 0xFFFFFFFF;
mkilivan	5:c8918e47c566	2172	fs->last_clust = 0;
mkilivan	5:c8918e47c566	2173
mkilivan	5:c8918e47c566	2174	/* Get fsinfo if available */
mkilivan	5:c8918e47c566	2175	if (fmt == FS_FAT32) {
mkilivan	5:c8918e47c566	2176	fs->fsi_flag = 0;
mkilivan	5:c8918e47c566	2177	fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
mkilivan	5:c8918e47c566	2178	if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK &&
mkilivan	5:c8918e47c566	2179	LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
mkilivan	5:c8918e47c566	2180	LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
mkilivan	5:c8918e47c566	2181	LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
mkilivan	5:c8918e47c566	2182	fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
mkilivan	5:c8918e47c566	2183	fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
mkilivan	5:c8918e47c566	2184	}
mkilivan	5:c8918e47c566	2185	}
mkilivan	5:c8918e47c566	2186	#endif
mkilivan	5:c8918e47c566	2187	fs->fs_type = fmt; /* FAT sub-type */
mkilivan	5:c8918e47c566	2188	fs->id = ++Fsid; /* File system mount ID */
mkilivan	5:c8918e47c566	2189	fs->winsect = 0; /* Invalidate sector cache */
mkilivan	5:c8918e47c566	2190	fs->wflag = 0;
mkilivan	5:c8918e47c566	2191	#if _FS_RPATH
mkilivan	5:c8918e47c566	2192	fs->cdir = 0; /* Current directory (root dir) */
mkilivan	5:c8918e47c566	2193	#endif
mkilivan	5:c8918e47c566	2194	#if _FS_LOCK /* Clear file lock semaphores */
mkilivan	5:c8918e47c566	2195	clear_lock(fs);
mkilivan	5:c8918e47c566	2196	#endif
mkilivan	5:c8918e47c566	2197
mkilivan	5:c8918e47c566	2198	return FR_OK;
mkilivan	5:c8918e47c566	2199	}
mkilivan	5:c8918e47c566	2200
mkilivan	5:c8918e47c566	2201
mkilivan	5:c8918e47c566	2202
mkilivan	5:c8918e47c566	2203
mkilivan	5:c8918e47c566	2204	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2205	/* Check if the file/dir object is valid or not */
mkilivan	5:c8918e47c566	2206	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2207
mkilivan	5:c8918e47c566	2208	static
mkilivan	5:c8918e47c566	2209	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
mkilivan	5:c8918e47c566	2210	void* obj /* Pointer to the object FIL/DIR to check validity */
mkilivan	5:c8918e47c566	2211	)
mkilivan	5:c8918e47c566	2212	{
mkilivan	5:c8918e47c566	2213	FIL *fil;
mkilivan	5:c8918e47c566	2214
mkilivan	5:c8918e47c566	2215
mkilivan	5:c8918e47c566	2216	fil = (FIL)obj; / Assuming offset of fs and id in the FIL/DIR is identical */
mkilivan	5:c8918e47c566	2217	if (!fil->fs \|\| !fil->fs->fs_type \|\| fil->fs->id != fil->id)
mkilivan	5:c8918e47c566	2218	return FR_INVALID_OBJECT;
mkilivan	5:c8918e47c566	2219
mkilivan	5:c8918e47c566	2220	ENTER_FF(fil->fs); /* Lock file system */
mkilivan	5:c8918e47c566	2221
mkilivan	5:c8918e47c566	2222	if (disk_status(fil->fs->drv) & STA_NOINIT)
mkilivan	5:c8918e47c566	2223	return FR_NOT_READY;
mkilivan	5:c8918e47c566	2224
mkilivan	5:c8918e47c566	2225	return FR_OK;
mkilivan	5:c8918e47c566	2226	}
mkilivan	5:c8918e47c566	2227
mkilivan	5:c8918e47c566	2228
mkilivan	5:c8918e47c566	2229
mkilivan	5:c8918e47c566	2230
mkilivan	5:c8918e47c566	2231	/*--------------------------------------------------------------------------
mkilivan	5:c8918e47c566	2232
mkilivan	5:c8918e47c566	2233	Public Functions
mkilivan	5:c8918e47c566	2234
mkilivan	5:c8918e47c566	2235	--------------------------------------------------------------------------*/
mkilivan	5:c8918e47c566	2236
mkilivan	5:c8918e47c566	2237
mkilivan	5:c8918e47c566	2238
mkilivan	5:c8918e47c566	2239	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2240	/* Mount/Unmount a Logical Drive */
mkilivan	5:c8918e47c566	2241	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2242
mkilivan	5:c8918e47c566	2243	FRESULT f_mount (
mkilivan	5:c8918e47c566	2244	BYTE vol, /* Logical drive number to be mounted/unmounted */
mkilivan	5:c8918e47c566	2245	FATFS fs / Pointer to new file system object (NULL for unmount)*/
mkilivan	5:c8918e47c566	2246	)
mkilivan	5:c8918e47c566	2247	{
mkilivan	5:c8918e47c566	2248	FATFS *rfs;
mkilivan	5:c8918e47c566	2249
mkilivan	5:c8918e47c566	2250
mkilivan	5:c8918e47c566	2251	if (vol >= _VOLUMES) /* Check if the drive number is valid */
mkilivan	5:c8918e47c566	2252	return FR_INVALID_DRIVE;
mkilivan	5:c8918e47c566	2253	rfs = FatFs[vol]; /* Get current fs object */
mkilivan	5:c8918e47c566	2254
mkilivan	5:c8918e47c566	2255	if (rfs) {
mkilivan	5:c8918e47c566	2256	#if _FS_LOCK
mkilivan	5:c8918e47c566	2257	clear_lock(rfs);
mkilivan	5:c8918e47c566	2258	#endif
mkilivan	5:c8918e47c566	2259	#if _FS_REENTRANT /* Discard sync object of the current volume */
mkilivan	5:c8918e47c566	2260	if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
mkilivan	5:c8918e47c566	2261	#endif
mkilivan	5:c8918e47c566	2262	rfs->fs_type = 0; /* Clear old fs object */
mkilivan	5:c8918e47c566	2263	}
mkilivan	5:c8918e47c566	2264
mkilivan	5:c8918e47c566	2265	if (fs) {
mkilivan	5:c8918e47c566	2266	fs->fs_type = 0; /* Clear new fs object */
mkilivan	5:c8918e47c566	2267	#if _FS_REENTRANT /* Create sync object for the new volume */
mkilivan	5:c8918e47c566	2268	if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
mkilivan	5:c8918e47c566	2269	#endif
mkilivan	5:c8918e47c566	2270	}
mkilivan	5:c8918e47c566	2271	FatFs[vol] = fs; /* Register new fs object */
mkilivan	5:c8918e47c566	2272
mkilivan	5:c8918e47c566	2273	return FR_OK;
mkilivan	5:c8918e47c566	2274	}
mkilivan	5:c8918e47c566	2275
mkilivan	5:c8918e47c566	2276
mkilivan	5:c8918e47c566	2277
mkilivan	5:c8918e47c566	2278
mkilivan	5:c8918e47c566	2279	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2280	/* Open or Create a File */
mkilivan	5:c8918e47c566	2281	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2282
mkilivan	5:c8918e47c566	2283	FRESULT f_open (
mkilivan	5:c8918e47c566	2284	FIL fp, / Pointer to the blank file object */
mkilivan	5:c8918e47c566	2285	const TCHAR path, / Pointer to the file name */
mkilivan	5:c8918e47c566	2286	BYTE mode /* Access mode and file open mode flags */
mkilivan	5:c8918e47c566	2287	)
mkilivan	5:c8918e47c566	2288	{
mkilivan	5:c8918e47c566	2289	FRESULT res;
mkilivan	5:c8918e47c566	2290	FATFS_DIR dj;
mkilivan	5:c8918e47c566	2291	BYTE *dir;
mkilivan	5:c8918e47c566	2292	DEF_NAMEBUF;
mkilivan	5:c8918e47c566	2293
mkilivan	5:c8918e47c566	2294
mkilivan	5:c8918e47c566	2295	if (!fp) return FR_INVALID_OBJECT;
mkilivan	5:c8918e47c566	2296	fp->fs = 0; /* Clear file object */
mkilivan	5:c8918e47c566	2297
mkilivan	5:c8918e47c566	2298	#if !_FS_READONLY
mkilivan	5:c8918e47c566	2299	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
mkilivan	5:c8918e47c566	2300	res = chk_mounted(&path, &dj.fs, (BYTE)(mode & ~FA_READ));
mkilivan	5:c8918e47c566	2301	#else
mkilivan	5:c8918e47c566	2302	mode &= FA_READ;
mkilivan	5:c8918e47c566	2303	res = chk_mounted(&path, &dj.fs, 0);
mkilivan	5:c8918e47c566	2304	#endif
mkilivan	5:c8918e47c566	2305	if (res == FR_OK) {
mkilivan	5:c8918e47c566	2306	INIT_BUF(dj);
mkilivan	5:c8918e47c566	2307	res = follow_path(&dj, path); /* Follow the file path */
mkilivan	5:c8918e47c566	2308	dir = dj.dir;
mkilivan	5:c8918e47c566	2309	#if !_FS_READONLY /* R/W configuration */
mkilivan	5:c8918e47c566	2310	if (res == FR_OK) {
mkilivan	5:c8918e47c566	2311	if (!dir) /* Current dir itself */
mkilivan	5:c8918e47c566	2312	res = FR_INVALID_NAME;
mkilivan	5:c8918e47c566	2313	#if _FS_LOCK
mkilivan	5:c8918e47c566	2314	else
mkilivan	5:c8918e47c566	2315	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
mkilivan	5:c8918e47c566	2316	#endif
mkilivan	5:c8918e47c566	2317	}
mkilivan	5:c8918e47c566	2318	/* Create or Open a file */
mkilivan	5:c8918e47c566	2319	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
mkilivan	5:c8918e47c566	2320	DWORD dw, cl;
mkilivan	5:c8918e47c566	2321
mkilivan	5:c8918e47c566	2322	if (res != FR_OK) { /* No file, create new */
mkilivan	5:c8918e47c566	2323	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
mkilivan	5:c8918e47c566	2324	#if _FS_LOCK
mkilivan	5:c8918e47c566	2325	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
mkilivan	5:c8918e47c566	2326	#else
mkilivan	5:c8918e47c566	2327	res = dir_register(&dj);
mkilivan	5:c8918e47c566	2328	#endif
mkilivan	5:c8918e47c566	2329	mode \|= FA_CREATE_ALWAYS; /* File is created */
mkilivan	5:c8918e47c566	2330	dir = dj.dir; /* New entry */
mkilivan	5:c8918e47c566	2331	}
mkilivan	5:c8918e47c566	2332	else { /* Any object is already existing */
mkilivan	5:c8918e47c566	2333	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */
mkilivan	5:c8918e47c566	2334	res = FR_DENIED;
mkilivan	5:c8918e47c566	2335	} else {
mkilivan	5:c8918e47c566	2336	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
mkilivan	5:c8918e47c566	2337	res = FR_EXIST;
mkilivan	5:c8918e47c566	2338	}
mkilivan	5:c8918e47c566	2339	}
mkilivan	5:c8918e47c566	2340	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
mkilivan	5:c8918e47c566	2341	dw = get_fattime(); /* Created time */
mkilivan	5:c8918e47c566	2342	ST_DWORD(dir+DIR_CrtTime, dw);
mkilivan	5:c8918e47c566	2343	dir[DIR_Attr] = 0; /* Reset attribute */
mkilivan	5:c8918e47c566	2344	ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
mkilivan	5:c8918e47c566	2345	cl = ld_clust(dj.fs, dir); /* Get start cluster */
mkilivan	5:c8918e47c566	2346	st_clust(dir, 0); /* cluster = 0 */
mkilivan	5:c8918e47c566	2347	dj.fs->wflag = 1;
mkilivan	5:c8918e47c566	2348	if (cl) { /* Remove the cluster chain if exist */
mkilivan	5:c8918e47c566	2349	dw = dj.fs->winsect;
mkilivan	5:c8918e47c566	2350	res = remove_chain(dj.fs, cl);
mkilivan	5:c8918e47c566	2351	if (res == FR_OK) {
mkilivan	5:c8918e47c566	2352	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
mkilivan	5:c8918e47c566	2353	res = move_window(dj.fs, dw);
mkilivan	5:c8918e47c566	2354	}
mkilivan	5:c8918e47c566	2355	}
mkilivan	5:c8918e47c566	2356	}
mkilivan	5:c8918e47c566	2357	}
mkilivan	5:c8918e47c566	2358	else { /* Open an existing file */
mkilivan	5:c8918e47c566	2359	if (res == FR_OK) { /* Follow succeeded */
mkilivan	5:c8918e47c566	2360	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
mkilivan	5:c8918e47c566	2361	res = FR_NO_FILE;
mkilivan	5:c8918e47c566	2362	} else {
mkilivan	5:c8918e47c566	2363	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
mkilivan	5:c8918e47c566	2364	res = FR_DENIED;
mkilivan	5:c8918e47c566	2365	}
mkilivan	5:c8918e47c566	2366	}
mkilivan	5:c8918e47c566	2367	}
mkilivan	5:c8918e47c566	2368	if (res == FR_OK) {
mkilivan	5:c8918e47c566	2369	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
mkilivan	5:c8918e47c566	2370	mode \|= FA__WRITTEN;
mkilivan	5:c8918e47c566	2371	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
mkilivan	5:c8918e47c566	2372	fp->dir_ptr = dir;
mkilivan	5:c8918e47c566	2373	#if _FS_LOCK
mkilivan	5:c8918e47c566	2374	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
mkilivan	5:c8918e47c566	2375	if (!fp->lockid) res = FR_INT_ERR;
mkilivan	5:c8918e47c566	2376	#endif
mkilivan	5:c8918e47c566	2377	}
mkilivan	5:c8918e47c566	2378
mkilivan	5:c8918e47c566	2379	#else /* R/O configuration */
mkilivan	5:c8918e47c566	2380	if (res == FR_OK) { /* Follow succeeded */
mkilivan	5:c8918e47c566	2381	dir = dj.dir;
mkilivan	5:c8918e47c566	2382	if (!dir) { /* Current dir itself */
mkilivan	5:c8918e47c566	2383	res = FR_INVALID_NAME;
mkilivan	5:c8918e47c566	2384	} else {
mkilivan	5:c8918e47c566	2385	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
mkilivan	5:c8918e47c566	2386	res = FR_NO_FILE;
mkilivan	5:c8918e47c566	2387	}
mkilivan	5:c8918e47c566	2388	}
mkilivan	5:c8918e47c566	2389	#endif
mkilivan	5:c8918e47c566	2390	FREE_BUF();
mkilivan	5:c8918e47c566	2391
mkilivan	5:c8918e47c566	2392	if (res == FR_OK) {
mkilivan	5:c8918e47c566	2393	fp->flag = mode; /* File access mode */
mkilivan	5:c8918e47c566	2394	fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
mkilivan	5:c8918e47c566	2395	fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
mkilivan	5:c8918e47c566	2396	fp->fptr = 0; /* File pointer */
mkilivan	5:c8918e47c566	2397	fp->dsect = 0;
mkilivan	5:c8918e47c566	2398	#if _USE_FASTSEEK
mkilivan	5:c8918e47c566	2399	fp->cltbl = 0; /* Normal seek mode */
mkilivan	5:c8918e47c566	2400	#endif
mkilivan	5:c8918e47c566	2401	fp->fs = dj.fs; fp->id = dj.fs->id; /* Validate file object */
mkilivan	5:c8918e47c566	2402	}
mkilivan	5:c8918e47c566	2403	}
mkilivan	5:c8918e47c566	2404
mkilivan	5:c8918e47c566	2405	LEAVE_FF(dj.fs, res);
mkilivan	5:c8918e47c566	2406	}
mkilivan	5:c8918e47c566	2407
mkilivan	5:c8918e47c566	2408
mkilivan	5:c8918e47c566	2409
mkilivan	5:c8918e47c566	2410
mkilivan	5:c8918e47c566	2411	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2412	/* Read File */
mkilivan	5:c8918e47c566	2413	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2414
mkilivan	5:c8918e47c566	2415	FRESULT f_read (
mkilivan	5:c8918e47c566	2416	FIL fp, / Pointer to the file object */
mkilivan	5:c8918e47c566	2417	void buff, / Pointer to data buffer */
mkilivan	5:c8918e47c566	2418	UINT btr, /* Number of bytes to read */
mkilivan	5:c8918e47c566	2419	UINT br / Pointer to number of bytes read */
mkilivan	5:c8918e47c566	2420	)
mkilivan	5:c8918e47c566	2421	{
mkilivan	5:c8918e47c566	2422	FRESULT res;
mkilivan	5:c8918e47c566	2423	DWORD clst, sect, remain;
mkilivan	5:c8918e47c566	2424	UINT rcnt, cc;
mkilivan	5:c8918e47c566	2425	BYTE csect, rbuff = (BYTE )buff;
mkilivan	5:c8918e47c566	2426
mkilivan	5:c8918e47c566	2427
mkilivan	5:c8918e47c566	2428	br = 0; / Clear read byte counter */
mkilivan	5:c8918e47c566	2429
mkilivan	5:c8918e47c566	2430	res = validate(fp); /* Check validity */
mkilivan	5:c8918e47c566	2431	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mkilivan	5:c8918e47c566	2432	if (fp->flag & FA__ERROR) /* Aborted file? */
mkilivan	5:c8918e47c566	2433	LEAVE_FF(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	2434	if (!(fp->flag & FA_READ)) /* Check access mode */
mkilivan	5:c8918e47c566	2435	LEAVE_FF(fp->fs, FR_DENIED);
mkilivan	5:c8918e47c566	2436	remain = fp->fsize - fp->fptr;
mkilivan	5:c8918e47c566	2437	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
mkilivan	5:c8918e47c566	2438
mkilivan	5:c8918e47c566	2439	for ( ; btr; /* Repeat until all data read */
mkilivan	5:c8918e47c566	2440	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
mkilivan	5:c8918e47c566	2441	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mkilivan	5:c8918e47c566	2442	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mkilivan	5:c8918e47c566	2443	if (!csect) { /* On the cluster boundary? */
mkilivan	5:c8918e47c566	2444	if (fp->fptr == 0) { /* On the top of the file? */
mkilivan	5:c8918e47c566	2445	clst = fp->sclust; /* Follow from the origin */
mkilivan	5:c8918e47c566	2446	} else { /* Middle or end of the file */
mkilivan	5:c8918e47c566	2447	#if _USE_FASTSEEK
mkilivan	5:c8918e47c566	2448	if (fp->cltbl)
mkilivan	5:c8918e47c566	2449	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mkilivan	5:c8918e47c566	2450	else
mkilivan	5:c8918e47c566	2451	#endif
mkilivan	5:c8918e47c566	2452	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
mkilivan	5:c8918e47c566	2453	}
mkilivan	5:c8918e47c566	2454	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	2455	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2456	fp->clust = clst; /* Update current cluster */
mkilivan	5:c8918e47c566	2457	}
mkilivan	5:c8918e47c566	2458	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mkilivan	5:c8918e47c566	2459	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	2460	sect += csect;
mkilivan	5:c8918e47c566	2461	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
mkilivan	5:c8918e47c566	2462	if (cc) { /* Read maximum contiguous sectors directly */
mkilivan	5:c8918e47c566	2463	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mkilivan	5:c8918e47c566	2464	cc = fp->fs->csize - csect;
mkilivan	5:c8918e47c566	2465	if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK)
mkilivan	5:c8918e47c566	2466	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2467	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
mkilivan	5:c8918e47c566	2468	#if _FS_TINY
mkilivan	5:c8918e47c566	2469	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
mkilivan	5:c8918e47c566	2470	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
mkilivan	5:c8918e47c566	2471	#else
mkilivan	5:c8918e47c566	2472	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
mkilivan	5:c8918e47c566	2473	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
mkilivan	5:c8918e47c566	2474	#endif
mkilivan	5:c8918e47c566	2475	#endif
mkilivan	5:c8918e47c566	2476	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mkilivan	5:c8918e47c566	2477	continue;
mkilivan	5:c8918e47c566	2478	}
mkilivan	5:c8918e47c566	2479	#if !_FS_TINY
mkilivan	5:c8918e47c566	2480	if (fp->dsect != sect) { /* Load data sector if not in cache */
mkilivan	5:c8918e47c566	2481	#if !_FS_READONLY
mkilivan	5:c8918e47c566	2482	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mkilivan	5:c8918e47c566	2483	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mkilivan	5:c8918e47c566	2484	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2485	fp->flag &= ~FA__DIRTY;
mkilivan	5:c8918e47c566	2486	}
mkilivan	5:c8918e47c566	2487	#endif
mkilivan	5:c8918e47c566	2488	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
mkilivan	5:c8918e47c566	2489	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2490	}
mkilivan	5:c8918e47c566	2491	#endif
mkilivan	5:c8918e47c566	2492	fp->dsect = sect;
mkilivan	5:c8918e47c566	2493	}
mkilivan	5:c8918e47c566	2494	rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
mkilivan	5:c8918e47c566	2495	if (rcnt > btr) rcnt = btr;
mkilivan	5:c8918e47c566	2496	#if _FS_TINY
mkilivan	5:c8918e47c566	2497	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
mkilivan	5:c8918e47c566	2498	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2499	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
mkilivan	5:c8918e47c566	2500	#else
mkilivan	5:c8918e47c566	2501	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
mkilivan	5:c8918e47c566	2502	#endif
mkilivan	5:c8918e47c566	2503	}
mkilivan	5:c8918e47c566	2504
mkilivan	5:c8918e47c566	2505	LEAVE_FF(fp->fs, FR_OK);
mkilivan	5:c8918e47c566	2506	}
mkilivan	5:c8918e47c566	2507
mkilivan	5:c8918e47c566	2508
mkilivan	5:c8918e47c566	2509
mkilivan	5:c8918e47c566	2510
mkilivan	5:c8918e47c566	2511	#if !_FS_READONLY
mkilivan	5:c8918e47c566	2512	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2513	/* Write File */
mkilivan	5:c8918e47c566	2514	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2515
mkilivan	5:c8918e47c566	2516	FRESULT f_write (
mkilivan	5:c8918e47c566	2517	FIL fp, / Pointer to the file object */
mkilivan	5:c8918e47c566	2518	const void buff, / Pointer to the data to be written */
mkilivan	5:c8918e47c566	2519	UINT btw, /* Number of bytes to write */
mkilivan	5:c8918e47c566	2520	UINT bw / Pointer to number of bytes written */
mkilivan	5:c8918e47c566	2521	)
mkilivan	5:c8918e47c566	2522	{
mkilivan	5:c8918e47c566	2523	FRESULT res;
mkilivan	5:c8918e47c566	2524	DWORD clst, sect;
mkilivan	5:c8918e47c566	2525	UINT wcnt, cc;
mkilivan	5:c8918e47c566	2526	const BYTE wbuff = (const BYTE )buff;
mkilivan	5:c8918e47c566	2527	BYTE csect;
mkilivan	5:c8918e47c566	2528
mkilivan	5:c8918e47c566	2529
mkilivan	5:c8918e47c566	2530	bw = 0; / Clear write byte counter */
mkilivan	5:c8918e47c566	2531
mkilivan	5:c8918e47c566	2532	res = validate(fp); /* Check validity */
mkilivan	5:c8918e47c566	2533	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mkilivan	5:c8918e47c566	2534	if (fp->flag & FA__ERROR) /* Aborted file? */
mkilivan	5:c8918e47c566	2535	LEAVE_FF(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	2536	if (!(fp->flag & FA_WRITE)) /* Check access mode */
mkilivan	5:c8918e47c566	2537	LEAVE_FF(fp->fs, FR_DENIED);
mkilivan	5:c8918e47c566	2538	if ((DWORD)(fp->fsize + btw) < fp->fsize) btw = 0; /* File size cannot reach 4GB */
mkilivan	5:c8918e47c566	2539
mkilivan	5:c8918e47c566	2540	for ( ; btw; /* Repeat until all data written */
mkilivan	5:c8918e47c566	2541	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
mkilivan	5:c8918e47c566	2542	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mkilivan	5:c8918e47c566	2543	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mkilivan	5:c8918e47c566	2544	if (!csect) { /* On the cluster boundary? */
mkilivan	5:c8918e47c566	2545	if (fp->fptr == 0) { /* On the top of the file? */
mkilivan	5:c8918e47c566	2546	clst = fp->sclust; /* Follow from the origin */
mkilivan	5:c8918e47c566	2547	if (clst == 0) /* When no cluster is allocated, */
mkilivan	5:c8918e47c566	2548	fp->sclust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
mkilivan	5:c8918e47c566	2549	} else { /* Middle or end of the file */
mkilivan	5:c8918e47c566	2550	#if _USE_FASTSEEK
mkilivan	5:c8918e47c566	2551	if (fp->cltbl)
mkilivan	5:c8918e47c566	2552	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mkilivan	5:c8918e47c566	2553	else
mkilivan	5:c8918e47c566	2554	#endif
mkilivan	5:c8918e47c566	2555	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
mkilivan	5:c8918e47c566	2556	}
mkilivan	5:c8918e47c566	2557	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
mkilivan	5:c8918e47c566	2558	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	2559	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2560	fp->clust = clst; /* Update current cluster */
mkilivan	5:c8918e47c566	2561	}
mkilivan	5:c8918e47c566	2562	#if _FS_TINY
mkilivan	5:c8918e47c566	2563	if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write-back sector cache */
mkilivan	5:c8918e47c566	2564	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2565	#else
mkilivan	5:c8918e47c566	2566	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
mkilivan	5:c8918e47c566	2567	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mkilivan	5:c8918e47c566	2568	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2569	fp->flag &= ~FA__DIRTY;
mkilivan	5:c8918e47c566	2570	}
mkilivan	5:c8918e47c566	2571	#endif
mkilivan	5:c8918e47c566	2572	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mkilivan	5:c8918e47c566	2573	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	2574	sect += csect;
mkilivan	5:c8918e47c566	2575	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
mkilivan	5:c8918e47c566	2576	if (cc) { /* Write maximum contiguous sectors directly */
mkilivan	5:c8918e47c566	2577	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mkilivan	5:c8918e47c566	2578	cc = fp->fs->csize - csect;
mkilivan	5:c8918e47c566	2579	if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK)
mkilivan	5:c8918e47c566	2580	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2581	#if _FS_TINY
mkilivan	5:c8918e47c566	2582	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mkilivan	5:c8918e47c566	2583	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
mkilivan	5:c8918e47c566	2584	fp->fs->wflag = 0;
mkilivan	5:c8918e47c566	2585	}
mkilivan	5:c8918e47c566	2586	#else
mkilivan	5:c8918e47c566	2587	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mkilivan	5:c8918e47c566	2588	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
mkilivan	5:c8918e47c566	2589	fp->flag &= ~FA__DIRTY;
mkilivan	5:c8918e47c566	2590	}
mkilivan	5:c8918e47c566	2591	#endif
mkilivan	5:c8918e47c566	2592	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mkilivan	5:c8918e47c566	2593	continue;
mkilivan	5:c8918e47c566	2594	}
mkilivan	5:c8918e47c566	2595	#if _FS_TINY
mkilivan	5:c8918e47c566	2596	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
mkilivan	5:c8918e47c566	2597	if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2598	fp->fs->winsect = sect;
mkilivan	5:c8918e47c566	2599	}
mkilivan	5:c8918e47c566	2600	#else
mkilivan	5:c8918e47c566	2601	if (fp->dsect != sect) { /* Fill sector cache with file data */
mkilivan	5:c8918e47c566	2602	if (fp->fptr < fp->fsize &&
mkilivan	5:c8918e47c566	2603	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
mkilivan	5:c8918e47c566	2604	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2605	}
mkilivan	5:c8918e47c566	2606	#endif
mkilivan	5:c8918e47c566	2607	fp->dsect = sect;
mkilivan	5:c8918e47c566	2608	}
mkilivan	5:c8918e47c566	2609	wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
mkilivan	5:c8918e47c566	2610	if (wcnt > btw) wcnt = btw;
mkilivan	5:c8918e47c566	2611	#if _FS_TINY
mkilivan	5:c8918e47c566	2612	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
mkilivan	5:c8918e47c566	2613	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2614	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mkilivan	5:c8918e47c566	2615	fp->fs->wflag = 1;
mkilivan	5:c8918e47c566	2616	#else
mkilivan	5:c8918e47c566	2617	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mkilivan	5:c8918e47c566	2618	fp->flag \|= FA__DIRTY;
mkilivan	5:c8918e47c566	2619	#endif
mkilivan	5:c8918e47c566	2620	}
mkilivan	5:c8918e47c566	2621
mkilivan	5:c8918e47c566	2622	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
mkilivan	5:c8918e47c566	2623	fp->flag \|= FA__WRITTEN; /* Set file change flag */
mkilivan	5:c8918e47c566	2624
mkilivan	5:c8918e47c566	2625	LEAVE_FF(fp->fs, FR_OK);
mkilivan	5:c8918e47c566	2626	}
mkilivan	5:c8918e47c566	2627
mkilivan	5:c8918e47c566	2628
mkilivan	5:c8918e47c566	2629
mkilivan	5:c8918e47c566	2630
mkilivan	5:c8918e47c566	2631	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2632	/* Synchronize the File Object */
mkilivan	5:c8918e47c566	2633	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2634
mkilivan	5:c8918e47c566	2635	FRESULT f_sync (
mkilivan	5:c8918e47c566	2636	FIL fp / Pointer to the file object */
mkilivan	5:c8918e47c566	2637	)
mkilivan	5:c8918e47c566	2638	{
mkilivan	5:c8918e47c566	2639	FRESULT res;
mkilivan	5:c8918e47c566	2640	DWORD tim;
mkilivan	5:c8918e47c566	2641	BYTE *dir;
mkilivan	5:c8918e47c566	2642
mkilivan	5:c8918e47c566	2643
mkilivan	5:c8918e47c566	2644	res = validate(fp); /* Check validity of the object */
mkilivan	5:c8918e47c566	2645	if (res == FR_OK) {
mkilivan	5:c8918e47c566	2646	if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
mkilivan	5:c8918e47c566	2647	#if !_FS_TINY /* Write-back dirty buffer */
mkilivan	5:c8918e47c566	2648	if (fp->flag & FA__DIRTY) {
mkilivan	5:c8918e47c566	2649	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mkilivan	5:c8918e47c566	2650	LEAVE_FF(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2651	fp->flag &= ~FA__DIRTY;
mkilivan	5:c8918e47c566	2652	}
mkilivan	5:c8918e47c566	2653	#endif
mkilivan	5:c8918e47c566	2654	/* Update the directory entry */
mkilivan	5:c8918e47c566	2655	res = move_window(fp->fs, fp->dir_sect);
mkilivan	5:c8918e47c566	2656	if (res == FR_OK) {
mkilivan	5:c8918e47c566	2657	dir = fp->dir_ptr;
mkilivan	5:c8918e47c566	2658	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
mkilivan	5:c8918e47c566	2659	ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
mkilivan	5:c8918e47c566	2660	st_clust(dir, fp->sclust); /* Update start cluster */
mkilivan	5:c8918e47c566	2661	tim = get_fattime(); /* Update updated time */
mkilivan	5:c8918e47c566	2662	ST_DWORD(dir+DIR_WrtTime, tim);
mkilivan	5:c8918e47c566	2663	ST_WORD(dir+DIR_LstAccDate, 0);
mkilivan	5:c8918e47c566	2664	fp->flag &= ~FA__WRITTEN;
mkilivan	5:c8918e47c566	2665	fp->fs->wflag = 1;
mkilivan	5:c8918e47c566	2666	res = sync(fp->fs);
mkilivan	5:c8918e47c566	2667	}
mkilivan	5:c8918e47c566	2668	}
mkilivan	5:c8918e47c566	2669	}
mkilivan	5:c8918e47c566	2670
mkilivan	5:c8918e47c566	2671	LEAVE_FF(fp->fs, res);
mkilivan	5:c8918e47c566	2672	}
mkilivan	5:c8918e47c566	2673
mkilivan	5:c8918e47c566	2674	#endif /* !_FS_READONLY */
mkilivan	5:c8918e47c566	2675
mkilivan	5:c8918e47c566	2676
mkilivan	5:c8918e47c566	2677
mkilivan	5:c8918e47c566	2678
mkilivan	5:c8918e47c566	2679	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2680	/* Close File */
mkilivan	5:c8918e47c566	2681	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2682
mkilivan	5:c8918e47c566	2683	FRESULT f_close (
mkilivan	5:c8918e47c566	2684	FIL fp / Pointer to the file object to be closed */
mkilivan	5:c8918e47c566	2685	)
mkilivan	5:c8918e47c566	2686	{
mkilivan	5:c8918e47c566	2687	FRESULT res;
mkilivan	5:c8918e47c566	2688
mkilivan	5:c8918e47c566	2689
mkilivan	5:c8918e47c566	2690	#if _FS_READONLY
mkilivan	5:c8918e47c566	2691	res = validate(fp);
mkilivan	5:c8918e47c566	2692	{
mkilivan	5:c8918e47c566	2693	#if _FS_REENTRANT
mkilivan	5:c8918e47c566	2694	FATFS *fs = fp->fs;
mkilivan	5:c8918e47c566	2695	#endif
mkilivan	5:c8918e47c566	2696	if (res == FR_OK) fp->fs = 0; /* Discard file object */
mkilivan	5:c8918e47c566	2697	LEAVE_FF(fs, res);
mkilivan	5:c8918e47c566	2698	}
mkilivan	5:c8918e47c566	2699	#else
mkilivan	5:c8918e47c566	2700	res = f_sync(fp); /* Flush cached data */
mkilivan	5:c8918e47c566	2701	#if _FS_LOCK
mkilivan	5:c8918e47c566	2702	if (res == FR_OK) { /* Decrement open counter */
mkilivan	5:c8918e47c566	2703	#if _FS_REENTRANT
mkilivan	5:c8918e47c566	2704	FATFS *fs = fp->fs;;
mkilivan	5:c8918e47c566	2705	res = validate(fp);
mkilivan	5:c8918e47c566	2706	if (res == FR_OK) {
mkilivan	5:c8918e47c566	2707	res = dec_lock(fp->lockid);
mkilivan	5:c8918e47c566	2708	unlock_fs(fs, FR_OK);
mkilivan	5:c8918e47c566	2709	}
mkilivan	5:c8918e47c566	2710	#else
mkilivan	5:c8918e47c566	2711	res = dec_lock(fp->lockid);
mkilivan	5:c8918e47c566	2712	#endif
mkilivan	5:c8918e47c566	2713	}
mkilivan	5:c8918e47c566	2714	#endif
mkilivan	5:c8918e47c566	2715	if (res == FR_OK) fp->fs = 0; /* Discard file object */
mkilivan	5:c8918e47c566	2716	return res;
mkilivan	5:c8918e47c566	2717	#endif
mkilivan	5:c8918e47c566	2718	}
mkilivan	5:c8918e47c566	2719
mkilivan	5:c8918e47c566	2720
mkilivan	5:c8918e47c566	2721
mkilivan	5:c8918e47c566	2722
mkilivan	5:c8918e47c566	2723	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2724	/* Current Drive/Directory Handlings */
mkilivan	5:c8918e47c566	2725	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2726
mkilivan	5:c8918e47c566	2727	#if _FS_RPATH >= 1
mkilivan	5:c8918e47c566	2728
mkilivan	5:c8918e47c566	2729	FRESULT f_chdrive (
mkilivan	5:c8918e47c566	2730	BYTE drv /* Drive number */
mkilivan	5:c8918e47c566	2731	)
mkilivan	5:c8918e47c566	2732	{
mkilivan	5:c8918e47c566	2733	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
mkilivan	5:c8918e47c566	2734
mkilivan	5:c8918e47c566	2735	CurrVol = drv;
mkilivan	5:c8918e47c566	2736
mkilivan	5:c8918e47c566	2737	return FR_OK;
mkilivan	5:c8918e47c566	2738	}
mkilivan	5:c8918e47c566	2739
mkilivan	5:c8918e47c566	2740
mkilivan	5:c8918e47c566	2741
mkilivan	5:c8918e47c566	2742	FRESULT f_chdir (
mkilivan	5:c8918e47c566	2743	const TCHAR path / Pointer to the directory path */
mkilivan	5:c8918e47c566	2744	)
mkilivan	5:c8918e47c566	2745	{
mkilivan	5:c8918e47c566	2746	FRESULT res;
mkilivan	5:c8918e47c566	2747	DIR dj;
mkilivan	5:c8918e47c566	2748	DEF_NAMEBUF;
mkilivan	5:c8918e47c566	2749
mkilivan	5:c8918e47c566	2750
mkilivan	5:c8918e47c566	2751	res = chk_mounted(&path, &dj.fs, 0);
mkilivan	5:c8918e47c566	2752	if (res == FR_OK) {
mkilivan	5:c8918e47c566	2753	INIT_BUF(dj);
mkilivan	5:c8918e47c566	2754	res = follow_path(&dj, path); /* Follow the path */
mkilivan	5:c8918e47c566	2755	FREE_BUF();
mkilivan	5:c8918e47c566	2756	if (res == FR_OK) { /* Follow completed */
mkilivan	5:c8918e47c566	2757	if (!dj.dir) {
mkilivan	5:c8918e47c566	2758	dj.fs->cdir = dj.sclust; /* Start directory itself */
mkilivan	5:c8918e47c566	2759	} else {
mkilivan	5:c8918e47c566	2760	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
mkilivan	5:c8918e47c566	2761	dj.fs->cdir = ld_clust(dj.fs, dj.dir);
mkilivan	5:c8918e47c566	2762	else
mkilivan	5:c8918e47c566	2763	res = FR_NO_PATH; /* Reached but a file */
mkilivan	5:c8918e47c566	2764	}
mkilivan	5:c8918e47c566	2765	}
mkilivan	5:c8918e47c566	2766	if (res == FR_NO_FILE) res = FR_NO_PATH;
mkilivan	5:c8918e47c566	2767	}
mkilivan	5:c8918e47c566	2768
mkilivan	5:c8918e47c566	2769	LEAVE_FF(dj.fs, res);
mkilivan	5:c8918e47c566	2770	}
mkilivan	5:c8918e47c566	2771
mkilivan	5:c8918e47c566	2772
mkilivan	5:c8918e47c566	2773	#if _FS_RPATH >= 2
mkilivan	5:c8918e47c566	2774	FRESULT f_getcwd (
mkilivan	5:c8918e47c566	2775	TCHAR path, / Pointer to the directory path */
mkilivan	5:c8918e47c566	2776	UINT sz_path /* Size of path */
mkilivan	5:c8918e47c566	2777	)
mkilivan	5:c8918e47c566	2778	{
mkilivan	5:c8918e47c566	2779	FRESULT res;
mkilivan	5:c8918e47c566	2780	DIR dj;
mkilivan	5:c8918e47c566	2781	UINT i, n;
mkilivan	5:c8918e47c566	2782	DWORD ccl;
mkilivan	5:c8918e47c566	2783	TCHAR *tp;
mkilivan	5:c8918e47c566	2784	FILINFO fno;
mkilivan	5:c8918e47c566	2785	DEF_NAMEBUF;
mkilivan	5:c8918e47c566	2786
mkilivan	5:c8918e47c566	2787
mkilivan	5:c8918e47c566	2788	*path = 0;
mkilivan	5:c8918e47c566	2789	res = chk_mounted((const TCHAR*)&path, &dj.fs, 0); / Get current volume */
mkilivan	5:c8918e47c566	2790	if (res == FR_OK) {
mkilivan	5:c8918e47c566	2791	INIT_BUF(dj);
mkilivan	5:c8918e47c566	2792	i = sz_path; /* Bottom of buffer (dir stack base) */
mkilivan	5:c8918e47c566	2793	dj.sclust = dj.fs->cdir; /* Start to follow upper dir from current dir */
mkilivan	5:c8918e47c566	2794	while ((ccl = dj.sclust) != 0) { /* Repeat while current dir is a sub-dir */
mkilivan	5:c8918e47c566	2795	res = dir_sdi(&dj, 1); /* Get parent dir */
mkilivan	5:c8918e47c566	2796	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	2797	res = dir_read(&dj);
mkilivan	5:c8918e47c566	2798	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	2799	dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent dir */
mkilivan	5:c8918e47c566	2800	res = dir_sdi(&dj, 0);
mkilivan	5:c8918e47c566	2801	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	2802	do { /* Find the entry links to the child dir */
mkilivan	5:c8918e47c566	2803	res = dir_read(&dj);
mkilivan	5:c8918e47c566	2804	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	2805	if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
mkilivan	5:c8918e47c566	2806	res = dir_next(&dj, 0);
mkilivan	5:c8918e47c566	2807	} while (res == FR_OK);
mkilivan	5:c8918e47c566	2808	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
mkilivan	5:c8918e47c566	2809	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	2810	#if _USE_LFN
mkilivan	5:c8918e47c566	2811	fno.lfname = path;
mkilivan	5:c8918e47c566	2812	fno.lfsize = i;
mkilivan	5:c8918e47c566	2813	#endif
mkilivan	5:c8918e47c566	2814	get_fileinfo(&dj, &fno); /* Get the dir name and push it to the buffer */
mkilivan	5:c8918e47c566	2815	tp = fno.fname;
mkilivan	5:c8918e47c566	2816	if (_USE_LFN && *path) tp = path;
mkilivan	5:c8918e47c566	2817	for (n = 0; tp[n]; n++) ;
mkilivan	5:c8918e47c566	2818	if (i < n + 3) {
mkilivan	5:c8918e47c566	2819	res = FR_NOT_ENOUGH_CORE; break;
mkilivan	5:c8918e47c566	2820	}
mkilivan	5:c8918e47c566	2821	while (n) path[--i] = tp[--n];
mkilivan	5:c8918e47c566	2822	path[--i] = '/';
mkilivan	5:c8918e47c566	2823	}
mkilivan	5:c8918e47c566	2824	tp = path;
mkilivan	5:c8918e47c566	2825	if (res == FR_OK) {
mkilivan	5:c8918e47c566	2826	tp++ = '0' + CurrVol; / Put drive number */
mkilivan	5:c8918e47c566	2827	*tp++ = ':';
mkilivan	5:c8918e47c566	2828	if (i == sz_path) { /* Root-dir */
mkilivan	5:c8918e47c566	2829	*tp++ = '/';
mkilivan	5:c8918e47c566	2830	} else { /* Sub-dir */
mkilivan	5:c8918e47c566	2831	do /* Add stacked path str */
mkilivan	5:c8918e47c566	2832	*tp++ = path[i++];
mkilivan	5:c8918e47c566	2833	while (i < sz_path);
mkilivan	5:c8918e47c566	2834	}
mkilivan	5:c8918e47c566	2835	}
mkilivan	5:c8918e47c566	2836	*tp = 0;
mkilivan	5:c8918e47c566	2837	FREE_BUF();
mkilivan	5:c8918e47c566	2838	}
mkilivan	5:c8918e47c566	2839
mkilivan	5:c8918e47c566	2840	LEAVE_FF(dj.fs, res);
mkilivan	5:c8918e47c566	2841	}
mkilivan	5:c8918e47c566	2842	#endif /* _FS_RPATH >= 2 */
mkilivan	5:c8918e47c566	2843	#endif /* _FS_RPATH >= 1 */
mkilivan	5:c8918e47c566	2844
mkilivan	5:c8918e47c566	2845
mkilivan	5:c8918e47c566	2846
mkilivan	5:c8918e47c566	2847	#if _FS_MINIMIZE <= 2
mkilivan	5:c8918e47c566	2848	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2849	/* Seek File R/W Pointer */
mkilivan	5:c8918e47c566	2850	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	2851
mkilivan	5:c8918e47c566	2852	FRESULT f_lseek (
mkilivan	5:c8918e47c566	2853	FIL fp, / Pointer to the file object */
mkilivan	5:c8918e47c566	2854	DWORD ofs /* File pointer from top of file */
mkilivan	5:c8918e47c566	2855	)
mkilivan	5:c8918e47c566	2856	{
mkilivan	5:c8918e47c566	2857	FRESULT res;
mkilivan	5:c8918e47c566	2858
mkilivan	5:c8918e47c566	2859
mkilivan	5:c8918e47c566	2860	res = validate(fp); /* Check validity of the object */
mkilivan	5:c8918e47c566	2861	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mkilivan	5:c8918e47c566	2862	if (fp->flag & FA__ERROR) /* Check abort flag */
mkilivan	5:c8918e47c566	2863	LEAVE_FF(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	2864
mkilivan	5:c8918e47c566	2865	#if _USE_FASTSEEK
mkilivan	5:c8918e47c566	2866	if (fp->cltbl) { /* Fast seek */
mkilivan	5:c8918e47c566	2867	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
mkilivan	5:c8918e47c566	2868
mkilivan	5:c8918e47c566	2869	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
mkilivan	5:c8918e47c566	2870	tbl = fp->cltbl;
mkilivan	5:c8918e47c566	2871	tlen = tbl++; ulen = 2; / Given table size and required table size */
mkilivan	5:c8918e47c566	2872	cl = fp->sclust; /* Top of the chain */
mkilivan	5:c8918e47c566	2873	if (cl) {
mkilivan	5:c8918e47c566	2874	do {
mkilivan	5:c8918e47c566	2875	/* Get a fragment */
mkilivan	5:c8918e47c566	2876	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
mkilivan	5:c8918e47c566	2877	do {
mkilivan	5:c8918e47c566	2878	pcl = cl; ncl++;
mkilivan	5:c8918e47c566	2879	cl = get_fat(fp->fs, cl);
mkilivan	5:c8918e47c566	2880	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	2881	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2882	} while (cl == pcl + 1);
mkilivan	5:c8918e47c566	2883	if (ulen <= tlen) { /* Store the length and top of the fragment */
mkilivan	5:c8918e47c566	2884	tbl++ = ncl; tbl++ = tcl;
mkilivan	5:c8918e47c566	2885	}
mkilivan	5:c8918e47c566	2886	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
mkilivan	5:c8918e47c566	2887	}
mkilivan	5:c8918e47c566	2888	fp->cltbl = ulen; / Number of items used */
mkilivan	5:c8918e47c566	2889	if (ulen <= tlen)
mkilivan	5:c8918e47c566	2890	tbl = 0; / Terminate table */
mkilivan	5:c8918e47c566	2891	else
mkilivan	5:c8918e47c566	2892	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
mkilivan	5:c8918e47c566	2893
mkilivan	5:c8918e47c566	2894	} else { /* Fast seek */
mkilivan	5:c8918e47c566	2895	if (ofs > fp->fsize) /* Clip offset at the file size */
mkilivan	5:c8918e47c566	2896	ofs = fp->fsize;
mkilivan	5:c8918e47c566	2897	fp->fptr = ofs; /* Set file pointer */
mkilivan	5:c8918e47c566	2898	if (ofs) {
mkilivan	5:c8918e47c566	2899	fp->clust = clmt_clust(fp, ofs - 1);
mkilivan	5:c8918e47c566	2900	dsc = clust2sect(fp->fs, fp->clust);
mkilivan	5:c8918e47c566	2901	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	2902	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
mkilivan	5:c8918e47c566	2903	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
mkilivan	5:c8918e47c566	2904	#if !_FS_TINY
mkilivan	5:c8918e47c566	2905	#if !_FS_READONLY
mkilivan	5:c8918e47c566	2906	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mkilivan	5:c8918e47c566	2907	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mkilivan	5:c8918e47c566	2908	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2909	fp->flag &= ~FA__DIRTY;
mkilivan	5:c8918e47c566	2910	}
mkilivan	5:c8918e47c566	2911	#endif
mkilivan	5:c8918e47c566	2912	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
mkilivan	5:c8918e47c566	2913	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2914	#endif
mkilivan	5:c8918e47c566	2915	fp->dsect = dsc;
mkilivan	5:c8918e47c566	2916	}
mkilivan	5:c8918e47c566	2917	}
mkilivan	5:c8918e47c566	2918	}
mkilivan	5:c8918e47c566	2919	} else
mkilivan	5:c8918e47c566	2920	#endif
mkilivan	5:c8918e47c566	2921
mkilivan	5:c8918e47c566	2922	/* Normal Seek */
mkilivan	5:c8918e47c566	2923	{
mkilivan	5:c8918e47c566	2924	DWORD clst, bcs, nsect, ifptr;
mkilivan	5:c8918e47c566	2925
mkilivan	5:c8918e47c566	2926	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
mkilivan	5:c8918e47c566	2927	#if !_FS_READONLY
mkilivan	5:c8918e47c566	2928	&& !(fp->flag & FA_WRITE)
mkilivan	5:c8918e47c566	2929	#endif
mkilivan	5:c8918e47c566	2930	) ofs = fp->fsize;
mkilivan	5:c8918e47c566	2931
mkilivan	5:c8918e47c566	2932	ifptr = fp->fptr;
mkilivan	5:c8918e47c566	2933	fp->fptr = nsect = 0;
mkilivan	5:c8918e47c566	2934	if (ofs) {
mkilivan	5:c8918e47c566	2935	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
mkilivan	5:c8918e47c566	2936	if (ifptr > 0 &&
mkilivan	5:c8918e47c566	2937	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
mkilivan	5:c8918e47c566	2938	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
mkilivan	5:c8918e47c566	2939	ofs -= fp->fptr;
mkilivan	5:c8918e47c566	2940	clst = fp->clust;
mkilivan	5:c8918e47c566	2941	} else { /* When seek to back cluster, */
mkilivan	5:c8918e47c566	2942	clst = fp->sclust; /* start from the first cluster */
mkilivan	5:c8918e47c566	2943	#if !_FS_READONLY
mkilivan	5:c8918e47c566	2944	if (clst == 0) { /* If no cluster chain, create a new chain */
mkilivan	5:c8918e47c566	2945	clst = create_chain(fp->fs, 0);
mkilivan	5:c8918e47c566	2946	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	2947	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2948	fp->sclust = clst;
mkilivan	5:c8918e47c566	2949	}
mkilivan	5:c8918e47c566	2950	#endif
mkilivan	5:c8918e47c566	2951	fp->clust = clst;
mkilivan	5:c8918e47c566	2952	}
mkilivan	5:c8918e47c566	2953	if (clst != 0) {
mkilivan	5:c8918e47c566	2954	while (ofs > bcs) { /* Cluster following loop */
mkilivan	5:c8918e47c566	2955	#if !_FS_READONLY
mkilivan	5:c8918e47c566	2956	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
mkilivan	5:c8918e47c566	2957	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
mkilivan	5:c8918e47c566	2958	if (clst == 0) { /* When disk gets full, clip file size */
mkilivan	5:c8918e47c566	2959	ofs = bcs; break;
mkilivan	5:c8918e47c566	2960	}
mkilivan	5:c8918e47c566	2961	} else
mkilivan	5:c8918e47c566	2962	#endif
mkilivan	5:c8918e47c566	2963	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
mkilivan	5:c8918e47c566	2964	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2965	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	2966	fp->clust = clst;
mkilivan	5:c8918e47c566	2967	fp->fptr += bcs;
mkilivan	5:c8918e47c566	2968	ofs -= bcs;
mkilivan	5:c8918e47c566	2969	}
mkilivan	5:c8918e47c566	2970	fp->fptr += ofs;
mkilivan	5:c8918e47c566	2971	if (ofs % SS(fp->fs)) {
mkilivan	5:c8918e47c566	2972	nsect = clust2sect(fp->fs, clst); /* Current sector */
mkilivan	5:c8918e47c566	2973	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	2974	nsect += ofs / SS(fp->fs);
mkilivan	5:c8918e47c566	2975	}
mkilivan	5:c8918e47c566	2976	}
mkilivan	5:c8918e47c566	2977	}
mkilivan	5:c8918e47c566	2978	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
mkilivan	5:c8918e47c566	2979	#if !_FS_TINY
mkilivan	5:c8918e47c566	2980	#if !_FS_READONLY
mkilivan	5:c8918e47c566	2981	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mkilivan	5:c8918e47c566	2982	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mkilivan	5:c8918e47c566	2983	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2984	fp->flag &= ~FA__DIRTY;
mkilivan	5:c8918e47c566	2985	}
mkilivan	5:c8918e47c566	2986	#endif
mkilivan	5:c8918e47c566	2987	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
mkilivan	5:c8918e47c566	2988	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	2989	#endif
mkilivan	5:c8918e47c566	2990	fp->dsect = nsect;
mkilivan	5:c8918e47c566	2991	}
mkilivan	5:c8918e47c566	2992	#if !_FS_READONLY
mkilivan	5:c8918e47c566	2993	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
mkilivan	5:c8918e47c566	2994	fp->fsize = fp->fptr;
mkilivan	5:c8918e47c566	2995	fp->flag \|= FA__WRITTEN;
mkilivan	5:c8918e47c566	2996	}
mkilivan	5:c8918e47c566	2997	#endif
mkilivan	5:c8918e47c566	2998	}
mkilivan	5:c8918e47c566	2999
mkilivan	5:c8918e47c566	3000	LEAVE_FF(fp->fs, res);
mkilivan	5:c8918e47c566	3001	}
mkilivan	5:c8918e47c566	3002
mkilivan	5:c8918e47c566	3003
mkilivan	5:c8918e47c566	3004
mkilivan	5:c8918e47c566	3005	#if _FS_MINIMIZE <= 1
mkilivan	5:c8918e47c566	3006	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3007	/* Create a Directory Object */
mkilivan	5:c8918e47c566	3008	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3009
mkilivan	5:c8918e47c566	3010	FRESULT f_opendir (
mkilivan	5:c8918e47c566	3011	FATFS_DIR dj, / Pointer to directory object to create */
mkilivan	5:c8918e47c566	3012	const TCHAR path / Pointer to the directory path */
mkilivan	5:c8918e47c566	3013	)
mkilivan	5:c8918e47c566	3014	{
mkilivan	5:c8918e47c566	3015	FRESULT res;
mkilivan	5:c8918e47c566	3016	FATFS *fs;
mkilivan	5:c8918e47c566	3017	DEF_NAMEBUF;
mkilivan	5:c8918e47c566	3018
mkilivan	5:c8918e47c566	3019
mkilivan	5:c8918e47c566	3020	if (!dj) return FR_INVALID_OBJECT;
mkilivan	5:c8918e47c566	3021
mkilivan	5:c8918e47c566	3022	res = chk_mounted(&path, &dj->fs, 0);
mkilivan	5:c8918e47c566	3023	fs = dj->fs;
mkilivan	5:c8918e47c566	3024	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3025	INIT_BUF(*dj);
mkilivan	5:c8918e47c566	3026	res = follow_path(dj, path); /* Follow the path to the directory */
mkilivan	5:c8918e47c566	3027	FREE_BUF();
mkilivan	5:c8918e47c566	3028	if (res == FR_OK) { /* Follow completed */
mkilivan	5:c8918e47c566	3029	if (dj->dir) { /* It is not the root dir */
mkilivan	5:c8918e47c566	3030	if (dj->dir[DIR_Attr] & AM_DIR) { /* The object is a directory */
mkilivan	5:c8918e47c566	3031	dj->sclust = ld_clust(fs, dj->dir);
mkilivan	5:c8918e47c566	3032	} else { /* The object is not a directory */
mkilivan	5:c8918e47c566	3033	res = FR_NO_PATH;
mkilivan	5:c8918e47c566	3034	}
mkilivan	5:c8918e47c566	3035	}
mkilivan	5:c8918e47c566	3036	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3037	dj->id = fs->id;
mkilivan	5:c8918e47c566	3038	res = dir_sdi(dj, 0); /* Rewind dir */
mkilivan	5:c8918e47c566	3039	}
mkilivan	5:c8918e47c566	3040	}
mkilivan	5:c8918e47c566	3041	if (res == FR_NO_FILE) res = FR_NO_PATH;
mkilivan	5:c8918e47c566	3042	if (res != FR_OK) dj->fs = 0; /* Invalidate the dir object if function faild */
mkilivan	5:c8918e47c566	3043	} else {
mkilivan	5:c8918e47c566	3044	dj->fs = 0;
mkilivan	5:c8918e47c566	3045	}
mkilivan	5:c8918e47c566	3046
mkilivan	5:c8918e47c566	3047	LEAVE_FF(fs, res);
mkilivan	5:c8918e47c566	3048	}
mkilivan	5:c8918e47c566	3049
mkilivan	5:c8918e47c566	3050
mkilivan	5:c8918e47c566	3051
mkilivan	5:c8918e47c566	3052
mkilivan	5:c8918e47c566	3053	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3054	/* Read Directory Entry in Sequence */
mkilivan	5:c8918e47c566	3055	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3056
mkilivan	5:c8918e47c566	3057	FRESULT f_readdir (
mkilivan	5:c8918e47c566	3058	FATFS_DIR dj, / Pointer to the open directory object */
mkilivan	5:c8918e47c566	3059	FILINFO fno / Pointer to file information to return */
mkilivan	5:c8918e47c566	3060	)
mkilivan	5:c8918e47c566	3061	{
mkilivan	5:c8918e47c566	3062	FRESULT res;
mkilivan	5:c8918e47c566	3063	DEF_NAMEBUF;
mkilivan	5:c8918e47c566	3064
mkilivan	5:c8918e47c566	3065
mkilivan	5:c8918e47c566	3066	res = validate(dj); /* Check validity of the object */
mkilivan	5:c8918e47c566	3067	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3068	if (!fno) {
mkilivan	5:c8918e47c566	3069	res = dir_sdi(dj, 0); /* Rewind the directory object */
mkilivan	5:c8918e47c566	3070	} else {
mkilivan	5:c8918e47c566	3071	INIT_BUF(*dj);
mkilivan	5:c8918e47c566	3072	res = dir_read(dj); /* Read an directory item */
mkilivan	5:c8918e47c566	3073	if (res == FR_NO_FILE) { /* Reached end of dir */
mkilivan	5:c8918e47c566	3074	dj->sect = 0;
mkilivan	5:c8918e47c566	3075	res = FR_OK;
mkilivan	5:c8918e47c566	3076	}
mkilivan	5:c8918e47c566	3077	if (res == FR_OK) { /* A valid entry is found */
mkilivan	5:c8918e47c566	3078	get_fileinfo(dj, fno); /* Get the object information */
mkilivan	5:c8918e47c566	3079	res = dir_next(dj, 0); /* Increment index for next */
mkilivan	5:c8918e47c566	3080	if (res == FR_NO_FILE) {
mkilivan	5:c8918e47c566	3081	dj->sect = 0;
mkilivan	5:c8918e47c566	3082	res = FR_OK;
mkilivan	5:c8918e47c566	3083	}
mkilivan	5:c8918e47c566	3084	}
mkilivan	5:c8918e47c566	3085	FREE_BUF();
mkilivan	5:c8918e47c566	3086	}
mkilivan	5:c8918e47c566	3087	}
mkilivan	5:c8918e47c566	3088
mkilivan	5:c8918e47c566	3089	LEAVE_FF(dj->fs, res);
mkilivan	5:c8918e47c566	3090	}
mkilivan	5:c8918e47c566	3091
mkilivan	5:c8918e47c566	3092
mkilivan	5:c8918e47c566	3093
mkilivan	5:c8918e47c566	3094	#if _FS_MINIMIZE == 0
mkilivan	5:c8918e47c566	3095	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3096	/* Get File Status */
mkilivan	5:c8918e47c566	3097	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3098
mkilivan	5:c8918e47c566	3099	FRESULT f_stat (
mkilivan	5:c8918e47c566	3100	const TCHAR path, / Pointer to the file path */
mkilivan	5:c8918e47c566	3101	FILINFO fno / Pointer to file information to return */
mkilivan	5:c8918e47c566	3102	)
mkilivan	5:c8918e47c566	3103	{
mkilivan	5:c8918e47c566	3104	FRESULT res;
mkilivan	5:c8918e47c566	3105	FATFS_DIR dj;
mkilivan	5:c8918e47c566	3106	DEF_NAMEBUF;
mkilivan	5:c8918e47c566	3107
mkilivan	5:c8918e47c566	3108
mkilivan	5:c8918e47c566	3109	res = chk_mounted(&path, &dj.fs, 0);
mkilivan	5:c8918e47c566	3110	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3111	INIT_BUF(dj);
mkilivan	5:c8918e47c566	3112	res = follow_path(&dj, path); /* Follow the file path */
mkilivan	5:c8918e47c566	3113	if (res == FR_OK) { /* Follow completed */
mkilivan	5:c8918e47c566	3114	if (dj.dir) /* Found an object */
mkilivan	5:c8918e47c566	3115	get_fileinfo(&dj, fno);
mkilivan	5:c8918e47c566	3116	else /* It is root dir */
mkilivan	5:c8918e47c566	3117	res = FR_INVALID_NAME;
mkilivan	5:c8918e47c566	3118	}
mkilivan	5:c8918e47c566	3119	FREE_BUF();
mkilivan	5:c8918e47c566	3120	}
mkilivan	5:c8918e47c566	3121
mkilivan	5:c8918e47c566	3122	LEAVE_FF(dj.fs, res);
mkilivan	5:c8918e47c566	3123	}
mkilivan	5:c8918e47c566	3124
mkilivan	5:c8918e47c566	3125
mkilivan	5:c8918e47c566	3126
mkilivan	5:c8918e47c566	3127	#if !_FS_READONLY
mkilivan	5:c8918e47c566	3128	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3129	/* Get Number of Free Clusters */
mkilivan	5:c8918e47c566	3130	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3131
mkilivan	5:c8918e47c566	3132	FRESULT f_getfree (
mkilivan	5:c8918e47c566	3133	const TCHAR path, / Pointer to the logical drive number (root dir) */
mkilivan	5:c8918e47c566	3134	DWORD nclst, / Pointer to the variable to return number of free clusters */
mkilivan	5:c8918e47c566	3135	FATFS *fatfs / Pointer to pointer to corresponding file system object to return */
mkilivan	5:c8918e47c566	3136	)
mkilivan	5:c8918e47c566	3137	{
mkilivan	5:c8918e47c566	3138	FRESULT res;
mkilivan	5:c8918e47c566	3139	FATFS *fs;
mkilivan	5:c8918e47c566	3140	DWORD n, clst, sect, stat;
mkilivan	5:c8918e47c566	3141	UINT i;
mkilivan	5:c8918e47c566	3142	BYTE fat, *p;
mkilivan	5:c8918e47c566	3143
mkilivan	5:c8918e47c566	3144
mkilivan	5:c8918e47c566	3145	/* Get drive number */
mkilivan	5:c8918e47c566	3146	res = chk_mounted(&path, fatfs, 0);
mkilivan	5:c8918e47c566	3147	fs = *fatfs;
mkilivan	5:c8918e47c566	3148	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3149	/* If free_clust is valid, return it without full cluster scan */
mkilivan	5:c8918e47c566	3150	if (fs->free_clust <= fs->n_fatent - 2) {
mkilivan	5:c8918e47c566	3151	*nclst = fs->free_clust;
mkilivan	5:c8918e47c566	3152	} else {
mkilivan	5:c8918e47c566	3153	/* Get number of free clusters */
mkilivan	5:c8918e47c566	3154	fat = fs->fs_type;
mkilivan	5:c8918e47c566	3155	n = 0;
mkilivan	5:c8918e47c566	3156	if (fat == FS_FAT12) {
mkilivan	5:c8918e47c566	3157	clst = 2;
mkilivan	5:c8918e47c566	3158	do {
mkilivan	5:c8918e47c566	3159	stat = get_fat(fs, clst);
mkilivan	5:c8918e47c566	3160	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
mkilivan	5:c8918e47c566	3161	if (stat == 1) { res = FR_INT_ERR; break; }
mkilivan	5:c8918e47c566	3162	if (stat == 0) n++;
mkilivan	5:c8918e47c566	3163	} while (++clst < fs->n_fatent);
mkilivan	5:c8918e47c566	3164	} else {
mkilivan	5:c8918e47c566	3165	clst = fs->n_fatent;
mkilivan	5:c8918e47c566	3166	sect = fs->fatbase;
mkilivan	5:c8918e47c566	3167	i = 0; p = 0;
mkilivan	5:c8918e47c566	3168	do {
mkilivan	5:c8918e47c566	3169	if (!i) {
mkilivan	5:c8918e47c566	3170	res = move_window(fs, sect++);
mkilivan	5:c8918e47c566	3171	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	3172	p = fs->win;
mkilivan	5:c8918e47c566	3173	i = SS(fs);
mkilivan	5:c8918e47c566	3174	}
mkilivan	5:c8918e47c566	3175	if (fat == FS_FAT16) {
mkilivan	5:c8918e47c566	3176	if (LD_WORD(p) == 0) n++;
mkilivan	5:c8918e47c566	3177	p += 2; i -= 2;
mkilivan	5:c8918e47c566	3178	} else {
mkilivan	5:c8918e47c566	3179	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
mkilivan	5:c8918e47c566	3180	p += 4; i -= 4;
mkilivan	5:c8918e47c566	3181	}
mkilivan	5:c8918e47c566	3182	} while (--clst);
mkilivan	5:c8918e47c566	3183	}
mkilivan	5:c8918e47c566	3184	fs->free_clust = n;
mkilivan	5:c8918e47c566	3185	if (fat == FS_FAT32) fs->fsi_flag = 1;
mkilivan	5:c8918e47c566	3186	*nclst = n;
mkilivan	5:c8918e47c566	3187	}
mkilivan	5:c8918e47c566	3188	}
mkilivan	5:c8918e47c566	3189	LEAVE_FF(fs, res);
mkilivan	5:c8918e47c566	3190	}
mkilivan	5:c8918e47c566	3191
mkilivan	5:c8918e47c566	3192
mkilivan	5:c8918e47c566	3193
mkilivan	5:c8918e47c566	3194
mkilivan	5:c8918e47c566	3195	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3196	/* Truncate File */
mkilivan	5:c8918e47c566	3197	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3198
mkilivan	5:c8918e47c566	3199	FRESULT f_truncate (
mkilivan	5:c8918e47c566	3200	FIL fp / Pointer to the file object */
mkilivan	5:c8918e47c566	3201	)
mkilivan	5:c8918e47c566	3202	{
mkilivan	5:c8918e47c566	3203	FRESULT res;
mkilivan	5:c8918e47c566	3204	DWORD ncl;
mkilivan	5:c8918e47c566	3205
mkilivan	5:c8918e47c566	3206
mkilivan	5:c8918e47c566	3207	if (!fp) return FR_INVALID_OBJECT;
mkilivan	5:c8918e47c566	3208
mkilivan	5:c8918e47c566	3209	res = validate(fp); /* Check validity of the object */
mkilivan	5:c8918e47c566	3210	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3211	if (fp->flag & FA__ERROR) { /* Check abort flag */
mkilivan	5:c8918e47c566	3212	res = FR_INT_ERR;
mkilivan	5:c8918e47c566	3213	} else {
mkilivan	5:c8918e47c566	3214	if (!(fp->flag & FA_WRITE)) /* Check access mode */
mkilivan	5:c8918e47c566	3215	res = FR_DENIED;
mkilivan	5:c8918e47c566	3216	}
mkilivan	5:c8918e47c566	3217	}
mkilivan	5:c8918e47c566	3218	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3219	if (fp->fsize > fp->fptr) {
mkilivan	5:c8918e47c566	3220	fp->fsize = fp->fptr; /* Set file size to current R/W point */
mkilivan	5:c8918e47c566	3221	fp->flag \|= FA__WRITTEN;
mkilivan	5:c8918e47c566	3222	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
mkilivan	5:c8918e47c566	3223	res = remove_chain(fp->fs, fp->sclust);
mkilivan	5:c8918e47c566	3224	fp->sclust = 0;
mkilivan	5:c8918e47c566	3225	} else { /* When truncate a part of the file, remove remaining clusters */
mkilivan	5:c8918e47c566	3226	ncl = get_fat(fp->fs, fp->clust);
mkilivan	5:c8918e47c566	3227	res = FR_OK;
mkilivan	5:c8918e47c566	3228	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
mkilivan	5:c8918e47c566	3229	if (ncl == 1) res = FR_INT_ERR;
mkilivan	5:c8918e47c566	3230	if (res == FR_OK && ncl < fp->fs->n_fatent) {
mkilivan	5:c8918e47c566	3231	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
mkilivan	5:c8918e47c566	3232	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
mkilivan	5:c8918e47c566	3233	}
mkilivan	5:c8918e47c566	3234	}
mkilivan	5:c8918e47c566	3235	}
mkilivan	5:c8918e47c566	3236	if (res != FR_OK) fp->flag \|= FA__ERROR;
mkilivan	5:c8918e47c566	3237	}
mkilivan	5:c8918e47c566	3238
mkilivan	5:c8918e47c566	3239	LEAVE_FF(fp->fs, res);
mkilivan	5:c8918e47c566	3240	}
mkilivan	5:c8918e47c566	3241
mkilivan	5:c8918e47c566	3242
mkilivan	5:c8918e47c566	3243
mkilivan	5:c8918e47c566	3244
mkilivan	5:c8918e47c566	3245	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3246	/* Delete a File or Directory */
mkilivan	5:c8918e47c566	3247	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3248
mkilivan	5:c8918e47c566	3249	FRESULT f_unlink (
mkilivan	5:c8918e47c566	3250	const TCHAR path / Pointer to the file or directory path */
mkilivan	5:c8918e47c566	3251	)
mkilivan	5:c8918e47c566	3252	{
mkilivan	5:c8918e47c566	3253	FRESULT res;
mkilivan	5:c8918e47c566	3254	FATFS_DIR dj, sdj;
mkilivan	5:c8918e47c566	3255	BYTE *dir;
mkilivan	5:c8918e47c566	3256	DWORD dclst;
mkilivan	5:c8918e47c566	3257	DEF_NAMEBUF;
mkilivan	5:c8918e47c566	3258
mkilivan	5:c8918e47c566	3259
mkilivan	5:c8918e47c566	3260	res = chk_mounted(&path, &dj.fs, 1);
mkilivan	5:c8918e47c566	3261	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3262	INIT_BUF(dj);
mkilivan	5:c8918e47c566	3263	res = follow_path(&dj, path); /* Follow the file path */
mkilivan	5:c8918e47c566	3264	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
mkilivan	5:c8918e47c566	3265	res = FR_INVALID_NAME; /* Cannot remove dot entry */
mkilivan	5:c8918e47c566	3266	#if _FS_LOCK
mkilivan	5:c8918e47c566	3267	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open file */
mkilivan	5:c8918e47c566	3268	#endif
mkilivan	5:c8918e47c566	3269	if (res == FR_OK) { /* The object is accessible */
mkilivan	5:c8918e47c566	3270	dir = dj.dir;
mkilivan	5:c8918e47c566	3271	if (!dir) {
mkilivan	5:c8918e47c566	3272	res = FR_INVALID_NAME; /* Cannot remove the start directory */
mkilivan	5:c8918e47c566	3273	} else {
mkilivan	5:c8918e47c566	3274	if (dir[DIR_Attr] & AM_RDO)
mkilivan	5:c8918e47c566	3275	res = FR_DENIED; /* Cannot remove R/O object */
mkilivan	5:c8918e47c566	3276	}
mkilivan	5:c8918e47c566	3277	dclst = ld_clust(dj.fs, dir);
mkilivan	5:c8918e47c566	3278	if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-dir? */
mkilivan	5:c8918e47c566	3279	if (dclst < 2) {
mkilivan	5:c8918e47c566	3280	res = FR_INT_ERR;
mkilivan	5:c8918e47c566	3281	} else {
mkilivan	5:c8918e47c566	3282	mem_cpy(&sdj, &dj, sizeof (FATFS_DIR)); /* Check if the sub-dir is empty or not */
mkilivan	5:c8918e47c566	3283	sdj.sclust = dclst;
mkilivan	5:c8918e47c566	3284	res = dir_sdi(&sdj, 2); /* Exclude dot entries */
mkilivan	5:c8918e47c566	3285	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3286	res = dir_read(&sdj);
mkilivan	5:c8918e47c566	3287	if (res == FR_OK /* Not empty dir */
mkilivan	5:c8918e47c566	3288	#if _FS_RPATH
mkilivan	5:c8918e47c566	3289	\|\| dclst == dj.fs->cdir /* Current dir */
mkilivan	5:c8918e47c566	3290	#endif
mkilivan	5:c8918e47c566	3291	) res = FR_DENIED;
mkilivan	5:c8918e47c566	3292	if (res == FR_NO_FILE) res = FR_OK; /* Empty */
mkilivan	5:c8918e47c566	3293	}
mkilivan	5:c8918e47c566	3294	}
mkilivan	5:c8918e47c566	3295	}
mkilivan	5:c8918e47c566	3296	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3297	res = dir_remove(&dj); /* Remove the directory entry */
mkilivan	5:c8918e47c566	3298	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3299	if (dclst) /* Remove the cluster chain if exist */
mkilivan	5:c8918e47c566	3300	res = remove_chain(dj.fs, dclst);
mkilivan	5:c8918e47c566	3301	if (res == FR_OK) res = sync(dj.fs);
mkilivan	5:c8918e47c566	3302	}
mkilivan	5:c8918e47c566	3303	}
mkilivan	5:c8918e47c566	3304	}
mkilivan	5:c8918e47c566	3305	FREE_BUF();
mkilivan	5:c8918e47c566	3306	}
mkilivan	5:c8918e47c566	3307	LEAVE_FF(dj.fs, res);
mkilivan	5:c8918e47c566	3308	}
mkilivan	5:c8918e47c566	3309
mkilivan	5:c8918e47c566	3310
mkilivan	5:c8918e47c566	3311
mkilivan	5:c8918e47c566	3312
mkilivan	5:c8918e47c566	3313	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3314	/* Create a Directory */
mkilivan	5:c8918e47c566	3315	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3316
mkilivan	5:c8918e47c566	3317	FRESULT f_mkdir (
mkilivan	5:c8918e47c566	3318	const TCHAR path / Pointer to the directory path */
mkilivan	5:c8918e47c566	3319	)
mkilivan	5:c8918e47c566	3320	{
mkilivan	5:c8918e47c566	3321	FRESULT res;
mkilivan	5:c8918e47c566	3322	FATFS_DIR dj;
mkilivan	5:c8918e47c566	3323	BYTE *dir, n;
mkilivan	5:c8918e47c566	3324	DWORD dsc, dcl, pcl, tim = get_fattime();
mkilivan	5:c8918e47c566	3325	DEF_NAMEBUF;
mkilivan	5:c8918e47c566	3326
mkilivan	5:c8918e47c566	3327
mkilivan	5:c8918e47c566	3328	res = chk_mounted(&path, &dj.fs, 1);
mkilivan	5:c8918e47c566	3329	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3330	INIT_BUF(dj);
mkilivan	5:c8918e47c566	3331	res = follow_path(&dj, path); /* Follow the file path */
mkilivan	5:c8918e47c566	3332	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
mkilivan	5:c8918e47c566	3333	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
mkilivan	5:c8918e47c566	3334	res = FR_INVALID_NAME;
mkilivan	5:c8918e47c566	3335	if (res == FR_NO_FILE) { /* Can create a new directory */
mkilivan	5:c8918e47c566	3336	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
mkilivan	5:c8918e47c566	3337	res = FR_OK;
mkilivan	5:c8918e47c566	3338	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
mkilivan	5:c8918e47c566	3339	if (dcl == 1) res = FR_INT_ERR;
mkilivan	5:c8918e47c566	3340	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
mkilivan	5:c8918e47c566	3341	if (res == FR_OK) /* Flush FAT */
mkilivan	5:c8918e47c566	3342	res = move_window(dj.fs, 0);
mkilivan	5:c8918e47c566	3343	if (res == FR_OK) { /* Initialize the new directory table */
mkilivan	5:c8918e47c566	3344	dsc = clust2sect(dj.fs, dcl);
mkilivan	5:c8918e47c566	3345	dir = dj.fs->win;
mkilivan	5:c8918e47c566	3346	mem_set(dir, 0, SS(dj.fs));
mkilivan	5:c8918e47c566	3347	mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */
mkilivan	5:c8918e47c566	3348	dir[DIR_Name] = '.';
mkilivan	5:c8918e47c566	3349	dir[DIR_Attr] = AM_DIR;
mkilivan	5:c8918e47c566	3350	ST_DWORD(dir+DIR_WrtTime, tim);
mkilivan	5:c8918e47c566	3351	st_clust(dir, dcl);
mkilivan	5:c8918e47c566	3352	mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
mkilivan	5:c8918e47c566	3353	dir[33] = '.'; pcl = dj.sclust;
mkilivan	5:c8918e47c566	3354	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
mkilivan	5:c8918e47c566	3355	pcl = 0;
mkilivan	5:c8918e47c566	3356	st_clust(dir+SZ_DIR, pcl);
mkilivan	5:c8918e47c566	3357	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
mkilivan	5:c8918e47c566	3358	dj.fs->winsect = dsc++;
mkilivan	5:c8918e47c566	3359	dj.fs->wflag = 1;
mkilivan	5:c8918e47c566	3360	res = move_window(dj.fs, 0);
mkilivan	5:c8918e47c566	3361	if (res != FR_OK) break;
mkilivan	5:c8918e47c566	3362	mem_set(dir, 0, SS(dj.fs));
mkilivan	5:c8918e47c566	3363	}
mkilivan	5:c8918e47c566	3364	}
mkilivan	5:c8918e47c566	3365	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
mkilivan	5:c8918e47c566	3366	if (res != FR_OK) {
mkilivan	5:c8918e47c566	3367	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
mkilivan	5:c8918e47c566	3368	} else {
mkilivan	5:c8918e47c566	3369	dir = dj.dir;
mkilivan	5:c8918e47c566	3370	dir[DIR_Attr] = AM_DIR; /* Attribute */
mkilivan	5:c8918e47c566	3371	ST_DWORD(dir+DIR_WrtTime, tim); /* Created time */
mkilivan	5:c8918e47c566	3372	st_clust(dir, dcl); /* Table start cluster */
mkilivan	5:c8918e47c566	3373	dj.fs->wflag = 1;
mkilivan	5:c8918e47c566	3374	res = sync(dj.fs);
mkilivan	5:c8918e47c566	3375	}
mkilivan	5:c8918e47c566	3376	}
mkilivan	5:c8918e47c566	3377	FREE_BUF();
mkilivan	5:c8918e47c566	3378	}
mkilivan	5:c8918e47c566	3379
mkilivan	5:c8918e47c566	3380	LEAVE_FF(dj.fs, res);
mkilivan	5:c8918e47c566	3381	}
mkilivan	5:c8918e47c566	3382
mkilivan	5:c8918e47c566	3383
mkilivan	5:c8918e47c566	3384
mkilivan	5:c8918e47c566	3385
mkilivan	5:c8918e47c566	3386	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3387	/* Change Attribute */
mkilivan	5:c8918e47c566	3388	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3389
mkilivan	5:c8918e47c566	3390	FRESULT f_chmod (
mkilivan	5:c8918e47c566	3391	const TCHAR path, / Pointer to the file path */
mkilivan	5:c8918e47c566	3392	BYTE value, /* Attribute bits */
mkilivan	5:c8918e47c566	3393	BYTE mask /* Attribute mask to change */
mkilivan	5:c8918e47c566	3394	)
mkilivan	5:c8918e47c566	3395	{
mkilivan	5:c8918e47c566	3396	FRESULT res;
mkilivan	5:c8918e47c566	3397	FATFS_DIR dj;
mkilivan	5:c8918e47c566	3398	BYTE *dir;
mkilivan	5:c8918e47c566	3399	DEF_NAMEBUF;
mkilivan	5:c8918e47c566	3400
mkilivan	5:c8918e47c566	3401
mkilivan	5:c8918e47c566	3402	res = chk_mounted(&path, &dj.fs, 1);
mkilivan	5:c8918e47c566	3403	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3404	INIT_BUF(dj);
mkilivan	5:c8918e47c566	3405	res = follow_path(&dj, path); /* Follow the file path */
mkilivan	5:c8918e47c566	3406	FREE_BUF();
mkilivan	5:c8918e47c566	3407	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
mkilivan	5:c8918e47c566	3408	res = FR_INVALID_NAME;
mkilivan	5:c8918e47c566	3409	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3410	dir = dj.dir;
mkilivan	5:c8918e47c566	3411	if (!dir) { /* Is it a root directory? */
mkilivan	5:c8918e47c566	3412	res = FR_INVALID_NAME;
mkilivan	5:c8918e47c566	3413	} else { /* File or sub directory */
mkilivan	5:c8918e47c566	3414	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
mkilivan	5:c8918e47c566	3415	dir[DIR_Attr] = (value & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
mkilivan	5:c8918e47c566	3416	dj.fs->wflag = 1;
mkilivan	5:c8918e47c566	3417	res = sync(dj.fs);
mkilivan	5:c8918e47c566	3418	}
mkilivan	5:c8918e47c566	3419	}
mkilivan	5:c8918e47c566	3420	}
mkilivan	5:c8918e47c566	3421
mkilivan	5:c8918e47c566	3422	LEAVE_FF(dj.fs, res);
mkilivan	5:c8918e47c566	3423	}
mkilivan	5:c8918e47c566	3424
mkilivan	5:c8918e47c566	3425
mkilivan	5:c8918e47c566	3426
mkilivan	5:c8918e47c566	3427
mkilivan	5:c8918e47c566	3428	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3429	/* Change Timestamp */
mkilivan	5:c8918e47c566	3430	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3431
mkilivan	5:c8918e47c566	3432	FRESULT f_utime (
mkilivan	5:c8918e47c566	3433	const TCHAR path, / Pointer to the file/directory name */
mkilivan	5:c8918e47c566	3434	const FILINFO fno / Pointer to the time stamp to be set */
mkilivan	5:c8918e47c566	3435	)
mkilivan	5:c8918e47c566	3436	{
mkilivan	5:c8918e47c566	3437	FRESULT res;
mkilivan	5:c8918e47c566	3438	FATFS_DIR dj;
mkilivan	5:c8918e47c566	3439	BYTE *dir;
mkilivan	5:c8918e47c566	3440	DEF_NAMEBUF;
mkilivan	5:c8918e47c566	3441
mkilivan	5:c8918e47c566	3442
mkilivan	5:c8918e47c566	3443	res = chk_mounted(&path, &dj.fs, 1);
mkilivan	5:c8918e47c566	3444	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3445	INIT_BUF(dj);
mkilivan	5:c8918e47c566	3446	res = follow_path(&dj, path); /* Follow the file path */
mkilivan	5:c8918e47c566	3447	FREE_BUF();
mkilivan	5:c8918e47c566	3448	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
mkilivan	5:c8918e47c566	3449	res = FR_INVALID_NAME;
mkilivan	5:c8918e47c566	3450	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3451	dir = dj.dir;
mkilivan	5:c8918e47c566	3452	if (!dir) { /* Root directory */
mkilivan	5:c8918e47c566	3453	res = FR_INVALID_NAME;
mkilivan	5:c8918e47c566	3454	} else { /* File or sub-directory */
mkilivan	5:c8918e47c566	3455	ST_WORD(dir+DIR_WrtTime, fno->ftime);
mkilivan	5:c8918e47c566	3456	ST_WORD(dir+DIR_WrtDate, fno->fdate);
mkilivan	5:c8918e47c566	3457	dj.fs->wflag = 1;
mkilivan	5:c8918e47c566	3458	res = sync(dj.fs);
mkilivan	5:c8918e47c566	3459	}
mkilivan	5:c8918e47c566	3460	}
mkilivan	5:c8918e47c566	3461	}
mkilivan	5:c8918e47c566	3462
mkilivan	5:c8918e47c566	3463	LEAVE_FF(dj.fs, res);
mkilivan	5:c8918e47c566	3464	}
mkilivan	5:c8918e47c566	3465
mkilivan	5:c8918e47c566	3466
mkilivan	5:c8918e47c566	3467
mkilivan	5:c8918e47c566	3468
mkilivan	5:c8918e47c566	3469	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3470	/* Rename File/Directory */
mkilivan	5:c8918e47c566	3471	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3472
mkilivan	5:c8918e47c566	3473	FRESULT f_rename (
mkilivan	5:c8918e47c566	3474	const TCHAR path_old, / Pointer to the old name */
mkilivan	5:c8918e47c566	3475	const TCHAR path_new / Pointer to the new name */
mkilivan	5:c8918e47c566	3476	)
mkilivan	5:c8918e47c566	3477	{
mkilivan	5:c8918e47c566	3478	FRESULT res;
mkilivan	5:c8918e47c566	3479	FATFS_DIR djo, djn;
mkilivan	5:c8918e47c566	3480	BYTE buf[21], *dir;
mkilivan	5:c8918e47c566	3481	DWORD dw;
mkilivan	5:c8918e47c566	3482	DEF_NAMEBUF;
mkilivan	5:c8918e47c566	3483
mkilivan	5:c8918e47c566	3484
mkilivan	5:c8918e47c566	3485	res = chk_mounted(&path_old, &djo.fs, 1);
mkilivan	5:c8918e47c566	3486	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3487	djn.fs = djo.fs;
mkilivan	5:c8918e47c566	3488	INIT_BUF(djo);
mkilivan	5:c8918e47c566	3489	res = follow_path(&djo, path_old); /* Check old object */
mkilivan	5:c8918e47c566	3490	if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
mkilivan	5:c8918e47c566	3491	res = FR_INVALID_NAME;
mkilivan	5:c8918e47c566	3492	#if _FS_LOCK
mkilivan	5:c8918e47c566	3493	if (res == FR_OK) res = chk_lock(&djo, 2);
mkilivan	5:c8918e47c566	3494	#endif
mkilivan	5:c8918e47c566	3495	if (res == FR_OK) { /* Old object is found */
mkilivan	5:c8918e47c566	3496	if (!djo.dir) { /* Is root dir? */
mkilivan	5:c8918e47c566	3497	res = FR_NO_FILE;
mkilivan	5:c8918e47c566	3498	} else {
mkilivan	5:c8918e47c566	3499	mem_cpy(buf, djo.dir+DIR_Attr, 21); /* Save the object information except for name */
mkilivan	5:c8918e47c566	3500	mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Check new object */
mkilivan	5:c8918e47c566	3501	res = follow_path(&djn, path_new);
mkilivan	5:c8918e47c566	3502	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
mkilivan	5:c8918e47c566	3503	if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
mkilivan	5:c8918e47c566	3504	/* Start critical section that an interruption or error can cause cross-link */
mkilivan	5:c8918e47c566	3505	res = dir_register(&djn); /* Register the new entry */
mkilivan	5:c8918e47c566	3506	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3507	dir = djn.dir; /* Copy object information except for name */
mkilivan	5:c8918e47c566	3508	mem_cpy(dir+13, buf+2, 19);
mkilivan	5:c8918e47c566	3509	dir[DIR_Attr] = buf[0] \| AM_ARC;
mkilivan	5:c8918e47c566	3510	djo.fs->wflag = 1;
mkilivan	5:c8918e47c566	3511	if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) { /* Update .. entry in the directory if needed */
mkilivan	5:c8918e47c566	3512	dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
mkilivan	5:c8918e47c566	3513	if (!dw) {
mkilivan	5:c8918e47c566	3514	res = FR_INT_ERR;
mkilivan	5:c8918e47c566	3515	} else {
mkilivan	5:c8918e47c566	3516	res = move_window(djo.fs, dw);
mkilivan	5:c8918e47c566	3517	dir = djo.fs->win+SZ_DIR; /* .. entry */
mkilivan	5:c8918e47c566	3518	if (res == FR_OK && dir[1] == '.') {
mkilivan	5:c8918e47c566	3519	dw = (djo.fs->fs_type == FS_FAT32 && djn.sclust == djo.fs->dirbase) ? 0 : djn.sclust;
mkilivan	5:c8918e47c566	3520	st_clust(dir, dw);
mkilivan	5:c8918e47c566	3521	djo.fs->wflag = 1;
mkilivan	5:c8918e47c566	3522	}
mkilivan	5:c8918e47c566	3523	}
mkilivan	5:c8918e47c566	3524	}
mkilivan	5:c8918e47c566	3525	if (res == FR_OK) {
mkilivan	5:c8918e47c566	3526	res = dir_remove(&djo); /* Remove old entry */
mkilivan	5:c8918e47c566	3527	if (res == FR_OK)
mkilivan	5:c8918e47c566	3528	res = sync(djo.fs);
mkilivan	5:c8918e47c566	3529	}
mkilivan	5:c8918e47c566	3530	}
mkilivan	5:c8918e47c566	3531	/* End critical section */
mkilivan	5:c8918e47c566	3532	}
mkilivan	5:c8918e47c566	3533	}
mkilivan	5:c8918e47c566	3534	}
mkilivan	5:c8918e47c566	3535	FREE_BUF();
mkilivan	5:c8918e47c566	3536	}
mkilivan	5:c8918e47c566	3537	LEAVE_FF(djo.fs, res);
mkilivan	5:c8918e47c566	3538	}
mkilivan	5:c8918e47c566	3539
mkilivan	5:c8918e47c566	3540	#endif /* !_FS_READONLY */
mkilivan	5:c8918e47c566	3541	#endif /* _FS_MINIMIZE == 0 */
mkilivan	5:c8918e47c566	3542	#endif /* _FS_MINIMIZE <= 1 */
mkilivan	5:c8918e47c566	3543	#endif /* _FS_MINIMIZE <= 2 */
mkilivan	5:c8918e47c566	3544
mkilivan	5:c8918e47c566	3545
mkilivan	5:c8918e47c566	3546
mkilivan	5:c8918e47c566	3547	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3548	/* Forward data to the stream directly (available on only tiny cfg) */
mkilivan	5:c8918e47c566	3549	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3550	#if _USE_FORWARD && _FS_TINY
mkilivan	5:c8918e47c566	3551
mkilivan	5:c8918e47c566	3552	FRESULT f_forward (
mkilivan	5:c8918e47c566	3553	FIL fp, / Pointer to the file object */
mkilivan	5:c8918e47c566	3554	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
mkilivan	5:c8918e47c566	3555	UINT btr, /* Number of bytes to forward */
mkilivan	5:c8918e47c566	3556	UINT bf / Pointer to number of bytes forwarded */
mkilivan	5:c8918e47c566	3557	)
mkilivan	5:c8918e47c566	3558	{
mkilivan	5:c8918e47c566	3559	FRESULT res;
mkilivan	5:c8918e47c566	3560	DWORD remain, clst, sect;
mkilivan	5:c8918e47c566	3561	UINT rcnt;
mkilivan	5:c8918e47c566	3562	BYTE csect;
mkilivan	5:c8918e47c566	3563
mkilivan	5:c8918e47c566	3564
mkilivan	5:c8918e47c566	3565	bf = 0; / Clear transfer byte counter */
mkilivan	5:c8918e47c566	3566
mkilivan	5:c8918e47c566	3567	if (!fp) return FR_INVALID_OBJECT;
mkilivan	5:c8918e47c566	3568
mkilivan	5:c8918e47c566	3569	res = validate(fp); /* Check validity of the object */
mkilivan	5:c8918e47c566	3570	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mkilivan	5:c8918e47c566	3571	if (fp->flag & FA__ERROR) /* Check error flag */
mkilivan	5:c8918e47c566	3572	LEAVE_FF(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	3573	if (!(fp->flag & FA_READ)) /* Check access mode */
mkilivan	5:c8918e47c566	3574	LEAVE_FF(fp->fs, FR_DENIED);
mkilivan	5:c8918e47c566	3575
mkilivan	5:c8918e47c566	3576	remain = fp->fsize - fp->fptr;
mkilivan	5:c8918e47c566	3577	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
mkilivan	5:c8918e47c566	3578
mkilivan	5:c8918e47c566	3579	for ( ; btr && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
mkilivan	5:c8918e47c566	3580	fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
mkilivan	5:c8918e47c566	3581	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mkilivan	5:c8918e47c566	3582	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mkilivan	5:c8918e47c566	3583	if (!csect) { /* On the cluster boundary? */
mkilivan	5:c8918e47c566	3584	clst = (fp->fptr == 0) ? /* On the top of the file? */
mkilivan	5:c8918e47c566	3585	fp->sclust : get_fat(fp->fs, fp->clust);
mkilivan	5:c8918e47c566	3586	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	3587	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	3588	fp->clust = clst; /* Update current cluster */
mkilivan	5:c8918e47c566	3589	}
mkilivan	5:c8918e47c566	3590	}
mkilivan	5:c8918e47c566	3591	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
mkilivan	5:c8918e47c566	3592	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	3593	sect += csect;
mkilivan	5:c8918e47c566	3594	if (move_window(fp->fs, sect)) /* Move sector window */
mkilivan	5:c8918e47c566	3595	ABORT(fp->fs, FR_DISK_ERR);
mkilivan	5:c8918e47c566	3596	fp->dsect = sect;
mkilivan	5:c8918e47c566	3597	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
mkilivan	5:c8918e47c566	3598	if (rcnt > btr) rcnt = btr;
mkilivan	5:c8918e47c566	3599	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
mkilivan	5:c8918e47c566	3600	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
mkilivan	5:c8918e47c566	3601	}
mkilivan	5:c8918e47c566	3602
mkilivan	5:c8918e47c566	3603	LEAVE_FF(fp->fs, FR_OK);
mkilivan	5:c8918e47c566	3604	}
mkilivan	5:c8918e47c566	3605	#endif /* _USE_FORWARD */
mkilivan	5:c8918e47c566	3606
mkilivan	5:c8918e47c566	3607
mkilivan	5:c8918e47c566	3608
mkilivan	5:c8918e47c566	3609	#if _USE_MKFS && !_FS_READONLY
mkilivan	5:c8918e47c566	3610	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3611	/* Create File System on the Drive */
mkilivan	5:c8918e47c566	3612	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3613	#define N_ROOTDIR 512 /* Number of root dir entries for FAT12/16 */
mkilivan	5:c8918e47c566	3614	#define N_FATS 1 /* Number of FAT copies (1 or 2) */
mkilivan	5:c8918e47c566	3615
mkilivan	5:c8918e47c566	3616
mkilivan	5:c8918e47c566	3617	FRESULT f_mkfs (
mkilivan	5:c8918e47c566	3618	BYTE drv, /* Logical drive number */
mkilivan	5:c8918e47c566	3619	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
mkilivan	5:c8918e47c566	3620	UINT au /* Allocation unit size [bytes] */
mkilivan	5:c8918e47c566	3621	)
mkilivan	5:c8918e47c566	3622	{
mkilivan	5:c8918e47c566	3623	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
mkilivan	5:c8918e47c566	3624	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
mkilivan	5:c8918e47c566	3625	BYTE fmt, md, sys, *tbl, pdrv, part;
mkilivan	5:c8918e47c566	3626	DWORD n_clst, vs, n, wsect;
mkilivan	5:c8918e47c566	3627	UINT i;
mkilivan	5:c8918e47c566	3628	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
mkilivan	5:c8918e47c566	3629	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
mkilivan	5:c8918e47c566	3630	FATFS *fs;
mkilivan	5:c8918e47c566	3631	DSTATUS stat;
mkilivan	5:c8918e47c566	3632
mkilivan	5:c8918e47c566	3633
mkilivan	5:c8918e47c566	3634	/* Check mounted drive and clear work area */
mkilivan	5:c8918e47c566	3635	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
mkilivan	5:c8918e47c566	3636	if (sfd > 1) return FR_INVALID_PARAMETER;
mkilivan	5:c8918e47c566	3637	if (au & (au - 1)) return FR_INVALID_PARAMETER;
mkilivan	5:c8918e47c566	3638	fs = FatFs[drv];
mkilivan	5:c8918e47c566	3639	if (!fs) return FR_NOT_ENABLED;
mkilivan	5:c8918e47c566	3640	fs->fs_type = 0;
mkilivan	5:c8918e47c566	3641	pdrv = LD2PD(drv); /* Physical drive */
mkilivan	5:c8918e47c566	3642	part = LD2PT(drv); /* Partition (0:auto detect, 1-4:get from partition table)*/
mkilivan	5:c8918e47c566	3643
mkilivan	5:c8918e47c566	3644	/* Get disk statics */
mkilivan	5:c8918e47c566	3645	stat = disk_initialize(pdrv);
mkilivan	5:c8918e47c566	3646	if (stat & STA_NOINIT) return FR_NOT_READY;
mkilivan	5:c8918e47c566	3647	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mkilivan	5:c8918e47c566	3648	#if _MAX_SS != 512 /* Get disk sector size */
mkilivan	5:c8918e47c566	3649	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS)
mkilivan	5:c8918e47c566	3650	return FR_DISK_ERR;
mkilivan	5:c8918e47c566	3651	#endif
mkilivan	5:c8918e47c566	3652	if (_MULTI_PARTITION && part) {
mkilivan	5:c8918e47c566	3653	/* Get partition information from partition table in the MBR */
mkilivan	5:c8918e47c566	3654	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
mkilivan	5:c8918e47c566	3655	if (LD_WORD(fs->win+BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
mkilivan	5:c8918e47c566	3656	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mkilivan	5:c8918e47c566	3657	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
mkilivan	5:c8918e47c566	3658	b_vol = LD_DWORD(tbl+8); /* Volume start sector */
mkilivan	5:c8918e47c566	3659	n_vol = LD_DWORD(tbl+12); /* Volume size */
mkilivan	5:c8918e47c566	3660	} else {
mkilivan	5:c8918e47c566	3661	/* Create a partition in this function */
mkilivan	5:c8918e47c566	3662	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
mkilivan	5:c8918e47c566	3663	return FR_DISK_ERR;
mkilivan	5:c8918e47c566	3664	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
mkilivan	5:c8918e47c566	3665	n_vol -= b_vol; /* Volume size */
mkilivan	5:c8918e47c566	3666	}
mkilivan	5:c8918e47c566	3667
mkilivan	5:c8918e47c566	3668	if (!au) { /* AU auto selection */
mkilivan	5:c8918e47c566	3669	vs = n_vol / (2000 / (SS(fs) / 512));
mkilivan	5:c8918e47c566	3670	for (i = 0; vs < vst[i]; i++) ;
mkilivan	5:c8918e47c566	3671	au = cst[i];
mkilivan	5:c8918e47c566	3672	}
mkilivan	5:c8918e47c566	3673	au /= SS(fs); /* Number of sectors per cluster */
mkilivan	5:c8918e47c566	3674	if (au == 0) au = 1;
mkilivan	5:c8918e47c566	3675	if (au > 128) au = 128;
mkilivan	5:c8918e47c566	3676
mkilivan	5:c8918e47c566	3677	/* Pre-compute number of clusters and FAT sub-type */
mkilivan	5:c8918e47c566	3678	n_clst = n_vol / au;
mkilivan	5:c8918e47c566	3679	fmt = FS_FAT12;
mkilivan	5:c8918e47c566	3680	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
mkilivan	5:c8918e47c566	3681	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
mkilivan	5:c8918e47c566	3682
mkilivan	5:c8918e47c566	3683	/* Determine offset and size of FAT structure */
mkilivan	5:c8918e47c566	3684	if (fmt == FS_FAT32) {
mkilivan	5:c8918e47c566	3685	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
mkilivan	5:c8918e47c566	3686	n_rsv = 32;
mkilivan	5:c8918e47c566	3687	n_dir = 0;
mkilivan	5:c8918e47c566	3688	} else {
mkilivan	5:c8918e47c566	3689	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
mkilivan	5:c8918e47c566	3690	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
mkilivan	5:c8918e47c566	3691	n_rsv = 1;
mkilivan	5:c8918e47c566	3692	n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
mkilivan	5:c8918e47c566	3693	}
mkilivan	5:c8918e47c566	3694	b_fat = b_vol + n_rsv; /* FAT area start sector */
mkilivan	5:c8918e47c566	3695	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
mkilivan	5:c8918e47c566	3696	b_data = b_dir + n_dir; /* Data area start sector */
mkilivan	5:c8918e47c566	3697	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
mkilivan	5:c8918e47c566	3698
mkilivan	5:c8918e47c566	3699	/* Align data start sector to erase block boundary (for flash memory media) */
mkilivan	5:c8918e47c566	3700	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
mkilivan	5:c8918e47c566	3701	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
mkilivan	5:c8918e47c566	3702	n = (n - b_data) / N_FATS;
mkilivan	5:c8918e47c566	3703	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
mkilivan	5:c8918e47c566	3704	n_rsv += n;
mkilivan	5:c8918e47c566	3705	b_fat += n;
mkilivan	5:c8918e47c566	3706	} else { /* FAT12/16: Expand FAT size */
mkilivan	5:c8918e47c566	3707	n_fat += n;
mkilivan	5:c8918e47c566	3708	}
mkilivan	5:c8918e47c566	3709
mkilivan	5:c8918e47c566	3710	/* Determine number of clusters and final check of validity of the FAT sub-type */
mkilivan	5:c8918e47c566	3711	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
mkilivan	5:c8918e47c566	3712	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
mkilivan	5:c8918e47c566	3713	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
mkilivan	5:c8918e47c566	3714	return FR_MKFS_ABORTED;
mkilivan	5:c8918e47c566	3715
mkilivan	5:c8918e47c566	3716	switch (fmt) { /* Determine system ID for partition table */
mkilivan	5:c8918e47c566	3717	case FS_FAT12: sys = 0x01; break;
mkilivan	5:c8918e47c566	3718	case FS_FAT16: sys = (n_vol < 0x10000) ? 0x04 : 0x06; break;
mkilivan	5:c8918e47c566	3719	default: sys = 0x0C;
mkilivan	5:c8918e47c566	3720	}
mkilivan	5:c8918e47c566	3721
mkilivan	5:c8918e47c566	3722	if (_MULTI_PARTITION && part) {
mkilivan	5:c8918e47c566	3723	/* Update system ID in the partition table */
mkilivan	5:c8918e47c566	3724	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mkilivan	5:c8918e47c566	3725	tbl[4] = sys;
mkilivan	5:c8918e47c566	3726	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
mkilivan	5:c8918e47c566	3727	md = 0xF8;
mkilivan	5:c8918e47c566	3728	} else {
mkilivan	5:c8918e47c566	3729	if (sfd) { /* No partition table (SFD) */
mkilivan	5:c8918e47c566	3730	md = 0xF0;
mkilivan	5:c8918e47c566	3731	} else { /* Create partition table (FDISK) */
mkilivan	5:c8918e47c566	3732	mem_set(fs->win, 0, SS(fs));
mkilivan	5:c8918e47c566	3733	tbl = fs->win+MBR_Table; /* Create partition table for single partition in the drive */
mkilivan	5:c8918e47c566	3734	tbl[1] = 1; /* Partition start head */
mkilivan	5:c8918e47c566	3735	tbl[2] = 1; /* Partition start sector */
mkilivan	5:c8918e47c566	3736	tbl[3] = 0; /* Partition start cylinder */
mkilivan	5:c8918e47c566	3737	tbl[4] = sys; /* System type */
mkilivan	5:c8918e47c566	3738	tbl[5] = 254; /* Partition end head */
mkilivan	5:c8918e47c566	3739	n = (b_vol + n_vol) / 63 / 255;
mkilivan	5:c8918e47c566	3740	tbl[6] = (BYTE)((n >> 2) \| 63); /* Partition end sector */
mkilivan	5:c8918e47c566	3741	tbl[7] = (BYTE)n; /* End cylinder */
mkilivan	5:c8918e47c566	3742	ST_DWORD(tbl+8, 63); /* Partition start in LBA */
mkilivan	5:c8918e47c566	3743	ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
mkilivan	5:c8918e47c566	3744	ST_WORD(fs->win+BS_55AA, 0xAA55); /* MBR signature */
mkilivan	5:c8918e47c566	3745	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR sector */
mkilivan	5:c8918e47c566	3746	return FR_DISK_ERR;
mkilivan	5:c8918e47c566	3747	md = 0xF8;
mkilivan	5:c8918e47c566	3748	}
mkilivan	5:c8918e47c566	3749	}
mkilivan	5:c8918e47c566	3750
mkilivan	5:c8918e47c566	3751	/* Create BPB in the VBR */
mkilivan	5:c8918e47c566	3752	tbl = fs->win; /* Clear sector */
mkilivan	5:c8918e47c566	3753	mem_set(tbl, 0, SS(fs));
mkilivan	5:c8918e47c566	3754	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
mkilivan	5:c8918e47c566	3755	i = SS(fs); /* Sector size */
mkilivan	5:c8918e47c566	3756	ST_WORD(tbl+BPB_BytsPerSec, i);
mkilivan	5:c8918e47c566	3757	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
mkilivan	5:c8918e47c566	3758	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
mkilivan	5:c8918e47c566	3759	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
mkilivan	5:c8918e47c566	3760	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of rootdir entries */
mkilivan	5:c8918e47c566	3761	ST_WORD(tbl+BPB_RootEntCnt, i);
mkilivan	5:c8918e47c566	3762	if (n_vol < 0x10000) { /* Number of total sectors */
mkilivan	5:c8918e47c566	3763	ST_WORD(tbl+BPB_TotSec16, n_vol);
mkilivan	5:c8918e47c566	3764	} else {
mkilivan	5:c8918e47c566	3765	ST_DWORD(tbl+BPB_TotSec32, n_vol);
mkilivan	5:c8918e47c566	3766	}
mkilivan	5:c8918e47c566	3767	tbl[BPB_Media] = md; /* Media descriptor */
mkilivan	5:c8918e47c566	3768	ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
mkilivan	5:c8918e47c566	3769	ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
mkilivan	5:c8918e47c566	3770	ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
mkilivan	5:c8918e47c566	3771	n = get_fattime(); /* Use current time as VSN */
mkilivan	5:c8918e47c566	3772	if (fmt == FS_FAT32) {
mkilivan	5:c8918e47c566	3773	ST_DWORD(tbl+BS_VolID32, n); /* VSN */
mkilivan	5:c8918e47c566	3774	ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
mkilivan	5:c8918e47c566	3775	ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
mkilivan	5:c8918e47c566	3776	ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (VBR+1) */
mkilivan	5:c8918e47c566	3777	ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
mkilivan	5:c8918e47c566	3778	tbl[BS_DrvNum32] = 0x80; /* Drive number */
mkilivan	5:c8918e47c566	3779	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
mkilivan	5:c8918e47c566	3780	mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
mkilivan	5:c8918e47c566	3781	} else {
mkilivan	5:c8918e47c566	3782	ST_DWORD(tbl+BS_VolID, n); /* VSN */
mkilivan	5:c8918e47c566	3783	ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
mkilivan	5:c8918e47c566	3784	tbl[BS_DrvNum] = 0x80; /* Drive number */
mkilivan	5:c8918e47c566	3785	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
mkilivan	5:c8918e47c566	3786	mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
mkilivan	5:c8918e47c566	3787	}
mkilivan	5:c8918e47c566	3788	ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
mkilivan	5:c8918e47c566	3789	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
mkilivan	5:c8918e47c566	3790	return FR_DISK_ERR;
mkilivan	5:c8918e47c566	3791	if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR+6) */
mkilivan	5:c8918e47c566	3792	disk_write(pdrv, tbl, b_vol + 6, 1);
mkilivan	5:c8918e47c566	3793
mkilivan	5:c8918e47c566	3794	/* Initialize FAT area */
mkilivan	5:c8918e47c566	3795	wsect = b_fat;
mkilivan	5:c8918e47c566	3796	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
mkilivan	5:c8918e47c566	3797	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
mkilivan	5:c8918e47c566	3798	n = md; /* Media descriptor byte */
mkilivan	5:c8918e47c566	3799	if (fmt != FS_FAT32) {
mkilivan	5:c8918e47c566	3800	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
mkilivan	5:c8918e47c566	3801	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
mkilivan	5:c8918e47c566	3802	} else {
mkilivan	5:c8918e47c566	3803	n \|= 0xFFFFFF00;
mkilivan	5:c8918e47c566	3804	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
mkilivan	5:c8918e47c566	3805	ST_DWORD(tbl+4, 0xFFFFFFFF);
mkilivan	5:c8918e47c566	3806	ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
mkilivan	5:c8918e47c566	3807	}
mkilivan	5:c8918e47c566	3808	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mkilivan	5:c8918e47c566	3809	return FR_DISK_ERR;
mkilivan	5:c8918e47c566	3810	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
mkilivan	5:c8918e47c566	3811	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
mkilivan	5:c8918e47c566	3812	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mkilivan	5:c8918e47c566	3813	return FR_DISK_ERR;
mkilivan	5:c8918e47c566	3814	}
mkilivan	5:c8918e47c566	3815	}
mkilivan	5:c8918e47c566	3816
mkilivan	5:c8918e47c566	3817	/* Initialize root directory */
mkilivan	5:c8918e47c566	3818	i = (fmt == FS_FAT32) ? au : n_dir;
mkilivan	5:c8918e47c566	3819	do {
mkilivan	5:c8918e47c566	3820	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mkilivan	5:c8918e47c566	3821	return FR_DISK_ERR;
mkilivan	5:c8918e47c566	3822	} while (--i);
mkilivan	5:c8918e47c566	3823
mkilivan	5:c8918e47c566	3824	#if _USE_ERASE /* Erase data area if needed */
mkilivan	5:c8918e47c566	3825	{
mkilivan	5:c8918e47c566	3826	DWORD eb[2];
mkilivan	5:c8918e47c566	3827
mkilivan	5:c8918e47c566	3828	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
mkilivan	5:c8918e47c566	3829	disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
mkilivan	5:c8918e47c566	3830	}
mkilivan	5:c8918e47c566	3831	#endif
mkilivan	5:c8918e47c566	3832
mkilivan	5:c8918e47c566	3833	/* Create FSInfo if needed */
mkilivan	5:c8918e47c566	3834	if (fmt == FS_FAT32) {
mkilivan	5:c8918e47c566	3835	ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
mkilivan	5:c8918e47c566	3836	ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
mkilivan	5:c8918e47c566	3837	ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
mkilivan	5:c8918e47c566	3838	ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
mkilivan	5:c8918e47c566	3839	ST_WORD(tbl+BS_55AA, 0xAA55);
mkilivan	5:c8918e47c566	3840	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
mkilivan	5:c8918e47c566	3841	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
mkilivan	5:c8918e47c566	3842	}
mkilivan	5:c8918e47c566	3843
mkilivan	5:c8918e47c566	3844	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
mkilivan	5:c8918e47c566	3845	}
mkilivan	5:c8918e47c566	3846
mkilivan	5:c8918e47c566	3847
mkilivan	5:c8918e47c566	3848	#if _MULTI_PARTITION == 2
mkilivan	5:c8918e47c566	3849	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3850	/* Divide Physical Drive */
mkilivan	5:c8918e47c566	3851	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3852
mkilivan	5:c8918e47c566	3853	FRESULT f_fdisk (
mkilivan	5:c8918e47c566	3854	BYTE pdrv, /* Physical drive number */
mkilivan	5:c8918e47c566	3855	const DWORD szt[], /* Pointer to the size table for each partitions */
mkilivan	5:c8918e47c566	3856	void* work /* Pointer to the working buffer */
mkilivan	5:c8918e47c566	3857	)
mkilivan	5:c8918e47c566	3858	{
mkilivan	5:c8918e47c566	3859	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
mkilivan	5:c8918e47c566	3860	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
mkilivan	5:c8918e47c566	3861	DSTATUS stat;
mkilivan	5:c8918e47c566	3862	DWORD sz_disk, sz_part, s_part;
mkilivan	5:c8918e47c566	3863
mkilivan	5:c8918e47c566	3864
mkilivan	5:c8918e47c566	3865	stat = disk_initialize(pdrv);
mkilivan	5:c8918e47c566	3866	if (stat & STA_NOINIT) return FR_NOT_READY;
mkilivan	5:c8918e47c566	3867	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mkilivan	5:c8918e47c566	3868	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
mkilivan	5:c8918e47c566	3869
mkilivan	5:c8918e47c566	3870	/* Determine CHS in the table regardless of the drive geometry */
mkilivan	5:c8918e47c566	3871	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
mkilivan	5:c8918e47c566	3872	if (n == 256) n--;
mkilivan	5:c8918e47c566	3873	e_hd = n - 1;
mkilivan	5:c8918e47c566	3874	sz_cyl = 63 * n;
mkilivan	5:c8918e47c566	3875	tot_cyl = sz_disk / sz_cyl;
mkilivan	5:c8918e47c566	3876
mkilivan	5:c8918e47c566	3877	/* Create partition table */
mkilivan	5:c8918e47c566	3878	mem_set(buf, 0, _MAX_SS);
mkilivan	5:c8918e47c566	3879	p = buf + MBR_Table; b_cyl = 0;
mkilivan	5:c8918e47c566	3880	for (i = 0; i < 4; i++, p += SZ_PTE) {
mkilivan	5:c8918e47c566	3881	p_cyl = (szt[i] <= 100) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
mkilivan	5:c8918e47c566	3882	if (!p_cyl) continue;
mkilivan	5:c8918e47c566	3883	s_part = (DWORD)sz_cyl * b_cyl;
mkilivan	5:c8918e47c566	3884	sz_part = (DWORD)sz_cyl * p_cyl;
mkilivan	5:c8918e47c566	3885	if (i == 0) { /* Exclude first track of cylinder 0 */
mkilivan	5:c8918e47c566	3886	s_hd = 1;
mkilivan	5:c8918e47c566	3887	s_part += 63; sz_part -= 63;
mkilivan	5:c8918e47c566	3888	} else {
mkilivan	5:c8918e47c566	3889	s_hd = 0;
mkilivan	5:c8918e47c566	3890	}
mkilivan	5:c8918e47c566	3891	e_cyl = b_cyl + p_cyl - 1;
mkilivan	5:c8918e47c566	3892	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
mkilivan	5:c8918e47c566	3893
mkilivan	5:c8918e47c566	3894	/* Set partition table */
mkilivan	5:c8918e47c566	3895	p[1] = s_hd; /* Start head */
mkilivan	5:c8918e47c566	3896	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
mkilivan	5:c8918e47c566	3897	p[3] = (BYTE)b_cyl; /* Start cylinder */
mkilivan	5:c8918e47c566	3898	p[4] = 0x06; /* System type (temporary setting) */
mkilivan	5:c8918e47c566	3899	p[5] = e_hd; /* End head */
mkilivan	5:c8918e47c566	3900	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
mkilivan	5:c8918e47c566	3901	p[7] = (BYTE)e_cyl; /* End cylinder */
mkilivan	5:c8918e47c566	3902	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
mkilivan	5:c8918e47c566	3903	ST_DWORD(p + 12, sz_part); /* Partition size */
mkilivan	5:c8918e47c566	3904
mkilivan	5:c8918e47c566	3905	/* Next partition */
mkilivan	5:c8918e47c566	3906	b_cyl += p_cyl;
mkilivan	5:c8918e47c566	3907	}
mkilivan	5:c8918e47c566	3908	ST_WORD(p, 0xAA55);
mkilivan	5:c8918e47c566	3909
mkilivan	5:c8918e47c566	3910	/* Write it to the MBR */
mkilivan	5:c8918e47c566	3911	return (disk_write(pdrv, buf, 0, 1) \|\| disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
mkilivan	5:c8918e47c566	3912	}
mkilivan	5:c8918e47c566	3913
mkilivan	5:c8918e47c566	3914
mkilivan	5:c8918e47c566	3915	#endif /* _MULTI_PARTITION == 2 */
mkilivan	5:c8918e47c566	3916	#endif /* _USE_MKFS && !_FS_READONLY */
mkilivan	5:c8918e47c566	3917
mkilivan	5:c8918e47c566	3918
mkilivan	5:c8918e47c566	3919
mkilivan	5:c8918e47c566	3920
mkilivan	5:c8918e47c566	3921	#if _USE_STRFUNC
mkilivan	5:c8918e47c566	3922	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3923	/* Get a string from the file */
mkilivan	5:c8918e47c566	3924	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3925	TCHAR* f_gets (
mkilivan	5:c8918e47c566	3926	TCHAR* buff, /* Pointer to the string buffer to read */
mkilivan	5:c8918e47c566	3927	int len, /* Size of string buffer (characters) */
mkilivan	5:c8918e47c566	3928	FIL* fil /* Pointer to the file object */
mkilivan	5:c8918e47c566	3929	)
mkilivan	5:c8918e47c566	3930	{
mkilivan	5:c8918e47c566	3931	int n = 0;
mkilivan	5:c8918e47c566	3932	TCHAR c, *p = buff;
mkilivan	5:c8918e47c566	3933	BYTE s[2];
mkilivan	5:c8918e47c566	3934	UINT rc;
mkilivan	5:c8918e47c566	3935
mkilivan	5:c8918e47c566	3936
mkilivan	5:c8918e47c566	3937	while (n < len - 1) { /* Read bytes until buffer gets filled */
mkilivan	5:c8918e47c566	3938	f_read(fil, s, 1, &rc);
mkilivan	5:c8918e47c566	3939	if (rc != 1) break; /* Break on EOF or error */
mkilivan	5:c8918e47c566	3940	c = s[0];
mkilivan	5:c8918e47c566	3941	#if _LFN_UNICODE /* Read a character in UTF-8 encoding */
mkilivan	5:c8918e47c566	3942	if (c >= 0x80) {
mkilivan	5:c8918e47c566	3943	if (c < 0xC0) continue; /* Skip stray trailer */
mkilivan	5:c8918e47c566	3944	if (c < 0xE0) { /* Two-byte sequence */
mkilivan	5:c8918e47c566	3945	f_read(fil, s, 1, &rc);
mkilivan	5:c8918e47c566	3946	if (rc != 1) break;
mkilivan	5:c8918e47c566	3947	c = ((c & 0x1F) << 6) \| (s[0] & 0x3F);
mkilivan	5:c8918e47c566	3948	if (c < 0x80) c = '?';
mkilivan	5:c8918e47c566	3949	} else {
mkilivan	5:c8918e47c566	3950	if (c < 0xF0) { /* Three-byte sequence */
mkilivan	5:c8918e47c566	3951	f_read(fil, s, 2, &rc);
mkilivan	5:c8918e47c566	3952	if (rc != 2) break;
mkilivan	5:c8918e47c566	3953	c = (c << 12) \| ((s[0] & 0x3F) << 6) \| (s[1] & 0x3F);
mkilivan	5:c8918e47c566	3954	if (c < 0x800) c = '?';
mkilivan	5:c8918e47c566	3955	} else { /* Reject four-byte sequence */
mkilivan	5:c8918e47c566	3956	c = '?';
mkilivan	5:c8918e47c566	3957	}
mkilivan	5:c8918e47c566	3958	}
mkilivan	5:c8918e47c566	3959	}
mkilivan	5:c8918e47c566	3960	#endif
mkilivan	5:c8918e47c566	3961	#if _USE_STRFUNC >= 2
mkilivan	5:c8918e47c566	3962	if (c == '\r') continue; /* Strip '\r' */
mkilivan	5:c8918e47c566	3963	#endif
mkilivan	5:c8918e47c566	3964	*p++ = c;
mkilivan	5:c8918e47c566	3965	n++;
mkilivan	5:c8918e47c566	3966	if (c == '\n') break; /* Break on EOL */
mkilivan	5:c8918e47c566	3967	}
mkilivan	5:c8918e47c566	3968	*p = 0;
mkilivan	5:c8918e47c566	3969	return n ? buff : 0; /* When no data read (eof or error), return with error. */
mkilivan	5:c8918e47c566	3970	}
mkilivan	5:c8918e47c566	3971
mkilivan	5:c8918e47c566	3972
mkilivan	5:c8918e47c566	3973
mkilivan	5:c8918e47c566	3974	#if !_FS_READONLY
mkilivan	5:c8918e47c566	3975	#include <stdarg.h>
mkilivan	5:c8918e47c566	3976	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3977	/* Put a character to the file */
mkilivan	5:c8918e47c566	3978	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	3979	int f_putc (
mkilivan	5:c8918e47c566	3980	TCHAR c, /* A character to be output */
mkilivan	5:c8918e47c566	3981	FIL* fil /* Pointer to the file object */
mkilivan	5:c8918e47c566	3982	)
mkilivan	5:c8918e47c566	3983	{
mkilivan	5:c8918e47c566	3984	UINT bw, btw;
mkilivan	5:c8918e47c566	3985	BYTE s[3];
mkilivan	5:c8918e47c566	3986
mkilivan	5:c8918e47c566	3987
mkilivan	5:c8918e47c566	3988	#if _USE_STRFUNC >= 2
mkilivan	5:c8918e47c566	3989	if (c == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */
mkilivan	5:c8918e47c566	3990	#endif
mkilivan	5:c8918e47c566	3991
mkilivan	5:c8918e47c566	3992	#if _LFN_UNICODE /* Write the character in UTF-8 encoding */
mkilivan	5:c8918e47c566	3993	if (c < 0x80) { /* 7-bit */
mkilivan	5:c8918e47c566	3994	s[0] = (BYTE)c;
mkilivan	5:c8918e47c566	3995	btw = 1;
mkilivan	5:c8918e47c566	3996	} else {
mkilivan	5:c8918e47c566	3997	if (c < 0x800) { /* 11-bit */
mkilivan	5:c8918e47c566	3998	s[0] = (BYTE)(0xC0 \| (c >> 6));
mkilivan	5:c8918e47c566	3999	s[1] = (BYTE)(0x80 \| (c & 0x3F));
mkilivan	5:c8918e47c566	4000	btw = 2;
mkilivan	5:c8918e47c566	4001	} else { /* 16-bit */
mkilivan	5:c8918e47c566	4002	s[0] = (BYTE)(0xE0 \| (c >> 12));
mkilivan	5:c8918e47c566	4003	s[1] = (BYTE)(0x80 \| ((c >> 6) & 0x3F));
mkilivan	5:c8918e47c566	4004	s[2] = (BYTE)(0x80 \| (c & 0x3F));
mkilivan	5:c8918e47c566	4005	btw = 3;
mkilivan	5:c8918e47c566	4006	}
mkilivan	5:c8918e47c566	4007	}
mkilivan	5:c8918e47c566	4008	#else /* Write the character without conversion */
mkilivan	5:c8918e47c566	4009	s[0] = (BYTE)c;
mkilivan	5:c8918e47c566	4010	btw = 1;
mkilivan	5:c8918e47c566	4011	#endif
mkilivan	5:c8918e47c566	4012	f_write(fil, s, btw, &bw); /* Write the char to the file */
mkilivan	5:c8918e47c566	4013	return (bw == btw) ? 1 : EOF; /* Return the result */
mkilivan	5:c8918e47c566	4014	}
mkilivan	5:c8918e47c566	4015
mkilivan	5:c8918e47c566	4016
mkilivan	5:c8918e47c566	4017
mkilivan	5:c8918e47c566	4018
mkilivan	5:c8918e47c566	4019	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	4020	/* Put a string to the file */
mkilivan	5:c8918e47c566	4021	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	4022	int f_puts (
mkilivan	5:c8918e47c566	4023	const TCHAR* str, /* Pointer to the string to be output */
mkilivan	5:c8918e47c566	4024	FIL* fil /* Pointer to the file object */
mkilivan	5:c8918e47c566	4025	)
mkilivan	5:c8918e47c566	4026	{
mkilivan	5:c8918e47c566	4027	int n;
mkilivan	5:c8918e47c566	4028
mkilivan	5:c8918e47c566	4029
mkilivan	5:c8918e47c566	4030	for (n = 0; *str; str++, n++) {
mkilivan	5:c8918e47c566	4031	if (f_putc(*str, fil) == EOF) return EOF;
mkilivan	5:c8918e47c566	4032	}
mkilivan	5:c8918e47c566	4033	return n;
mkilivan	5:c8918e47c566	4034	}
mkilivan	5:c8918e47c566	4035
mkilivan	5:c8918e47c566	4036
mkilivan	5:c8918e47c566	4037
mkilivan	5:c8918e47c566	4038
mkilivan	5:c8918e47c566	4039	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	4040	/* Put a formatted string to the file */
mkilivan	5:c8918e47c566	4041	/-----------------------------------------------------------------------/
mkilivan	5:c8918e47c566	4042	int f_printf (
mkilivan	5:c8918e47c566	4043	FIL* fil, /* Pointer to the file object */
mkilivan	5:c8918e47c566	4044	const TCHAR* str, /* Pointer to the format string */
mkilivan	5:c8918e47c566	4045	... /* Optional arguments... */
mkilivan	5:c8918e47c566	4046	)
mkilivan	5:c8918e47c566	4047	{
mkilivan	5:c8918e47c566	4048	va_list arp;
mkilivan	5:c8918e47c566	4049	BYTE f, r;
mkilivan	5:c8918e47c566	4050	UINT i, j, w;
mkilivan	5:c8918e47c566	4051	ULONG v;
mkilivan	5:c8918e47c566	4052	TCHAR c, d, s[16], *p;
mkilivan	5:c8918e47c566	4053	int res, chc, cc;
mkilivan	5:c8918e47c566	4054
mkilivan	5:c8918e47c566	4055
mkilivan	5:c8918e47c566	4056	va_start(arp, str);
mkilivan	5:c8918e47c566	4057
mkilivan	5:c8918e47c566	4058	for (cc = res = 0; cc != EOF; res += cc) {
mkilivan	5:c8918e47c566	4059	c = *str++;
mkilivan	5:c8918e47c566	4060	if (c == 0) break; /* End of string */
mkilivan	5:c8918e47c566	4061	if (c != '%') { /* Non escape character */
mkilivan	5:c8918e47c566	4062	cc = f_putc(c, fil);
mkilivan	5:c8918e47c566	4063	if (cc != EOF) cc = 1;
mkilivan	5:c8918e47c566	4064	continue;
mkilivan	5:c8918e47c566	4065	}
mkilivan	5:c8918e47c566	4066	w = f = 0;
mkilivan	5:c8918e47c566	4067	c = *str++;
mkilivan	5:c8918e47c566	4068	if (c == '0') { /* Flag: '0' padding */
mkilivan	5:c8918e47c566	4069	f = 1; c = *str++;
mkilivan	5:c8918e47c566	4070	} else {
mkilivan	5:c8918e47c566	4071	if (c == '-') { /* Flag: left justified */
mkilivan	5:c8918e47c566	4072	f = 2; c = *str++;
mkilivan	5:c8918e47c566	4073	}
mkilivan	5:c8918e47c566	4074	}
mkilivan	5:c8918e47c566	4075	while (IsDigit(c)) { /* Precision */
mkilivan	5:c8918e47c566	4076	w = w * 10 + c - '0';
mkilivan	5:c8918e47c566	4077	c = *str++;
mkilivan	5:c8918e47c566	4078	}
mkilivan	5:c8918e47c566	4079	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
mkilivan	5:c8918e47c566	4080	f \|= 4; c = *str++;
mkilivan	5:c8918e47c566	4081	}
mkilivan	5:c8918e47c566	4082	if (!c) break;
mkilivan	5:c8918e47c566	4083	d = c;
mkilivan	5:c8918e47c566	4084	if (IsLower(d)) d -= 0x20;
mkilivan	5:c8918e47c566	4085	switch (d) { /* Type is... */
mkilivan	5:c8918e47c566	4086	case 'S' : /* String */
mkilivan	5:c8918e47c566	4087	p = va_arg(arp, TCHAR*);
mkilivan	5:c8918e47c566	4088	for (j = 0; p[j]; j++) ;
mkilivan	5:c8918e47c566	4089	chc = 0;
mkilivan	5:c8918e47c566	4090	if (!(f & 2)) {
mkilivan	5:c8918e47c566	4091	while (j++ < w) chc += (cc = f_putc(' ', fil));
mkilivan	5:c8918e47c566	4092	}
mkilivan	5:c8918e47c566	4093	chc += (cc = f_puts(p, fil));
mkilivan	5:c8918e47c566	4094	while (j++ < w) chc += (cc = f_putc(' ', fil));
mkilivan	5:c8918e47c566	4095	if (cc != EOF) cc = chc;
mkilivan	5:c8918e47c566	4096	continue;
mkilivan	5:c8918e47c566	4097	case 'C' : /* Character */
mkilivan	5:c8918e47c566	4098	cc = f_putc((TCHAR)va_arg(arp, int), fil); continue;
mkilivan	5:c8918e47c566	4099	case 'B' : /* Binary */
mkilivan	5:c8918e47c566	4100	r = 2; break;
mkilivan	5:c8918e47c566	4101	case 'O' : /* Octal */
mkilivan	5:c8918e47c566	4102	r = 8; break;
mkilivan	5:c8918e47c566	4103	case 'D' : /* Signed decimal */
mkilivan	5:c8918e47c566	4104	case 'U' : /* Unsigned decimal */
mkilivan	5:c8918e47c566	4105	r = 10; break;
mkilivan	5:c8918e47c566	4106	case 'X' : /* Hexdecimal */
mkilivan	5:c8918e47c566	4107	r = 16; break;
mkilivan	5:c8918e47c566	4108	default: /* Unknown type (pass-through) */
mkilivan	5:c8918e47c566	4109	cc = f_putc(c, fil); continue;
mkilivan	5:c8918e47c566	4110	}
mkilivan	5:c8918e47c566	4111
mkilivan	5:c8918e47c566	4112	/* Get an argument and put it in numeral */
mkilivan	5:c8918e47c566	4113	v = (f & 4) ? (ULONG)va_arg(arp, long) : ((d == 'D') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int));
mkilivan	5:c8918e47c566	4114	if (d == 'D' && (v & 0x80000000)) {
mkilivan	5:c8918e47c566	4115	v = 0 - v;
mkilivan	5:c8918e47c566	4116	f \|= 8;
mkilivan	5:c8918e47c566	4117	}
mkilivan	5:c8918e47c566	4118	i = 0;
mkilivan	5:c8918e47c566	4119	do {
mkilivan	5:c8918e47c566	4120	d = (TCHAR)(v % r); v /= r;
mkilivan	5:c8918e47c566	4121	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
mkilivan	5:c8918e47c566	4122	s[i++] = d + '0';
mkilivan	5:c8918e47c566	4123	} while (v && i < sizeof s / sizeof s[0]);
mkilivan	5:c8918e47c566	4124	if (f & 8) s[i++] = '-';
mkilivan	5:c8918e47c566	4125	j = i; d = (f & 1) ? '0' : ' ';
mkilivan	5:c8918e47c566	4126	res = 0;
mkilivan	5:c8918e47c566	4127	while (!(f & 2) && j++ < w) res += (cc = f_putc(d, fil));
mkilivan	5:c8918e47c566	4128	do res += (cc = f_putc(s[--i], fil)); while(i);
mkilivan	5:c8918e47c566	4129	while (j++ < w) res += (cc = f_putc(' ', fil));
mkilivan	5:c8918e47c566	4130	if (cc != EOF) cc = res;
mkilivan	5:c8918e47c566	4131	}
mkilivan	5:c8918e47c566	4132
mkilivan	5:c8918e47c566	4133	va_end(arp);
mkilivan	5:c8918e47c566	4134	return (cc == EOF) ? cc : res;
mkilivan	5:c8918e47c566	4135	}
mkilivan	5:c8918e47c566	4136
mkilivan	5:c8918e47c566	4137	#endif /* !_FS_READONLY */
mkilivan	5:c8918e47c566	4138	#endif /* _USE_STRFUNC */

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Type:	Library
Created:	19 Dec 2014
Imports:	1
Forks:	1
Commits:	6
Dependents:	0
Dependencies:	1
Followers:	1

FATFileSystem/ChaN/ff.cpp@5:c8918e47c566, 2014-12-23 (annotated)

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