FatFileSystemCpp - Fork of Adam Green's library with .cpp fix for cu…

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Fork of Adam Green's library with .cpp fix for current compiler

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ff.cpp@1:88f22c32a456, 2012-07-30 (annotated)

Committer:: igorsk
Date:: Mon Jul 30 13:45:05 2012 +0000
Revision:: 1:88f22c32a456
Parent:: ff.c@0:6ceefe1c53e4

renamed .c to .cpp

Who changed what in which revision?

User	Revision	Line number	New contents of line
AdamGreen	0:6ceefe1c53e4	1	/*----------------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2	/ FatFs - FAT file system module R0.09 (C)ChaN, 2011
AdamGreen	0:6ceefe1c53e4	3	/-----------------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	4	/ FatFs module is a generic FAT file system module for small embedded systems.
AdamGreen	0:6ceefe1c53e4	5	/ This is a free software that opened for education, research and commercial
AdamGreen	0:6ceefe1c53e4	6	/ developments under license policy of following terms.
AdamGreen	0:6ceefe1c53e4	7	/
AdamGreen	0:6ceefe1c53e4	8	/ Copyright (C) 2011, ChaN, all right reserved.
AdamGreen	0:6ceefe1c53e4	9	/
AdamGreen	0:6ceefe1c53e4	10	/ * The FatFs module is a free software and there is NO WARRANTY.
AdamGreen	0:6ceefe1c53e4	11	/ * No restriction on use. You can use, modify and redistribute it for
AdamGreen	0:6ceefe1c53e4	12	/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
AdamGreen	0:6ceefe1c53e4	13	/ * Redistributions of source code must retain the above copyright notice.
AdamGreen	0:6ceefe1c53e4	14	/
AdamGreen	0:6ceefe1c53e4	15	/-----------------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	16	/ Feb 26,'06 R0.00 Prototype.
AdamGreen	0:6ceefe1c53e4	17	/
AdamGreen	0:6ceefe1c53e4	18	/ Apr 29,'06 R0.01 First stable version.
AdamGreen	0:6ceefe1c53e4	19	/
AdamGreen	0:6ceefe1c53e4	20	/ Jun 01,'06 R0.02 Added FAT12 support.
AdamGreen	0:6ceefe1c53e4	21	/ Removed unbuffered mode.
AdamGreen	0:6ceefe1c53e4	22	/ Fixed a problem on small (<32M) partition.
AdamGreen	0:6ceefe1c53e4	23	/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
AdamGreen	0:6ceefe1c53e4	24	/
AdamGreen	0:6ceefe1c53e4	25	/ Sep 22,'06 R0.03 Added f_rename().
AdamGreen	0:6ceefe1c53e4	26	/ Changed option _FS_MINIMUM to _FS_MINIMIZE.
AdamGreen	0:6ceefe1c53e4	27	/ Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
AdamGreen	0:6ceefe1c53e4	28	/ Fixed f_mkdir() creates incorrect directory on FAT32.
AdamGreen	0:6ceefe1c53e4	29	/
AdamGreen	0:6ceefe1c53e4	30	/ Feb 04,'07 R0.04 Supported multiple drive system.
AdamGreen	0:6ceefe1c53e4	31	/ Changed some interfaces for multiple drive system.
AdamGreen	0:6ceefe1c53e4	32	/ Changed f_mountdrv() to f_mount().
AdamGreen	0:6ceefe1c53e4	33	/ Added f_mkfs().
AdamGreen	0:6ceefe1c53e4	34	/ Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
AdamGreen	0:6ceefe1c53e4	35	/ Added a capability of extending file size to f_lseek().
AdamGreen	0:6ceefe1c53e4	36	/ Added minimization level 3.
AdamGreen	0:6ceefe1c53e4	37	/ Fixed an endian sensitive code in f_mkfs().
AdamGreen	0:6ceefe1c53e4	38	/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
AdamGreen	0:6ceefe1c53e4	39	/ Added FSInfo support.
AdamGreen	0:6ceefe1c53e4	40	/ Fixed DBCS name can result FR_INVALID_NAME.
AdamGreen	0:6ceefe1c53e4	41	/ Fixed short seek (<= csize) collapses the file object.
AdamGreen	0:6ceefe1c53e4	42	/
AdamGreen	0:6ceefe1c53e4	43	/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
AdamGreen	0:6ceefe1c53e4	44	/ Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
AdamGreen	0:6ceefe1c53e4	45	/ Fixed f_mkdir() on FAT32 creates incorrect directory.
AdamGreen	0:6ceefe1c53e4	46	/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
AdamGreen	0:6ceefe1c53e4	47	/ Fixed off by one error at FAT sub-type determination.
AdamGreen	0:6ceefe1c53e4	48	/ Fixed btr in f_read() can be mistruncated.
AdamGreen	0:6ceefe1c53e4	49	/ Fixed cached sector is not flushed when create and close without write.
AdamGreen	0:6ceefe1c53e4	50	/
AdamGreen	0:6ceefe1c53e4	51	/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
AdamGreen	0:6ceefe1c53e4	52	/ Improved performance of f_lseek() on moving to the same or following cluster.
AdamGreen	0:6ceefe1c53e4	53	/
AdamGreen	0:6ceefe1c53e4	54	/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
AdamGreen	0:6ceefe1c53e4	55	/ Added long file name feature.
AdamGreen	0:6ceefe1c53e4	56	/ Added multiple code page feature.
AdamGreen	0:6ceefe1c53e4	57	/ Added re-entrancy for multitask operation.
AdamGreen	0:6ceefe1c53e4	58	/ Added auto cluster size selection to f_mkfs().
AdamGreen	0:6ceefe1c53e4	59	/ Added rewind option to f_readdir().
AdamGreen	0:6ceefe1c53e4	60	/ Changed result code of critical errors.
AdamGreen	0:6ceefe1c53e4	61	/ Renamed string functions to avoid name collision.
AdamGreen	0:6ceefe1c53e4	62	/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
AdamGreen	0:6ceefe1c53e4	63	/ Added multiple sector size feature.
AdamGreen	0:6ceefe1c53e4	64	/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
AdamGreen	0:6ceefe1c53e4	65	/ Fixed wrong cache control in f_lseek().
AdamGreen	0:6ceefe1c53e4	66	/ Added relative path feature.
AdamGreen	0:6ceefe1c53e4	67	/ Added f_chdir() and f_chdrive().
AdamGreen	0:6ceefe1c53e4	68	/ Added proper case conversion to extended char.
AdamGreen	0:6ceefe1c53e4	69	/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
AdamGreen	0:6ceefe1c53e4	70	/ Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
AdamGreen	0:6ceefe1c53e4	71	/ Fixed name matching error on the 13 char boundary.
AdamGreen	0:6ceefe1c53e4	72	/ Added a configuration option, _LFN_UNICODE.
AdamGreen	0:6ceefe1c53e4	73	/ Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
AdamGreen	0:6ceefe1c53e4	74	/
AdamGreen	0:6ceefe1c53e4	75	/ May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
AdamGreen	0:6ceefe1c53e4	76	/ Added file lock feature. (_FS_SHARE)
AdamGreen	0:6ceefe1c53e4	77	/ Added fast seek feature. (_USE_FASTSEEK)
AdamGreen	0:6ceefe1c53e4	78	/ Changed some types on the API, XCHAR->TCHAR.
AdamGreen	0:6ceefe1c53e4	79	/ Changed fname member in the FILINFO structure on Unicode cfg.
AdamGreen	0:6ceefe1c53e4	80	/ String functions support UTF-8 encoding files on Unicode cfg.
AdamGreen	0:6ceefe1c53e4	81	/ Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
AdamGreen	0:6ceefe1c53e4	82	/ Added sector erase feature. (_USE_ERASE)
AdamGreen	0:6ceefe1c53e4	83	/ Moved file lock semaphore table from fs object to the bss.
AdamGreen	0:6ceefe1c53e4	84	/ Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
AdamGreen	0:6ceefe1c53e4	85	/ Fixed f_mkfs() creates wrong FAT32 volume.
AdamGreen	0:6ceefe1c53e4	86	/ Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
AdamGreen	0:6ceefe1c53e4	87	/ f_lseek() reports required table size on creating CLMP.
AdamGreen	0:6ceefe1c53e4	88	/ Extended format syntax of f_printf function.
AdamGreen	0:6ceefe1c53e4	89	/ Ignores duplicated directory separators in given path names.
AdamGreen	0:6ceefe1c53e4	90	/
AdamGreen	0:6ceefe1c53e4	91	/ Sep 06,'11 R0.09 f_mkfs() supports multiple partition to finish the multiple partition feature.
AdamGreen	0:6ceefe1c53e4	92	/ Added f_fdisk(). (_MULTI_PARTITION = 2)
AdamGreen	0:6ceefe1c53e4	93	/---------------------------------------------------------------------------*/
AdamGreen	0:6ceefe1c53e4	94
AdamGreen	0:6ceefe1c53e4	95	#include "ff.h" /* FatFs configurations and declarations */
AdamGreen	0:6ceefe1c53e4	96	#include "diskio.h" /* Declarations of low level disk I/O functions */
AdamGreen	0:6ceefe1c53e4	97
AdamGreen	0:6ceefe1c53e4	98
AdamGreen	0:6ceefe1c53e4	99	/*--------------------------------------------------------------------------
AdamGreen	0:6ceefe1c53e4	100
AdamGreen	0:6ceefe1c53e4	101	Module Private Definitions
AdamGreen	0:6ceefe1c53e4	102
AdamGreen	0:6ceefe1c53e4	103	---------------------------------------------------------------------------*/
AdamGreen	0:6ceefe1c53e4	104
AdamGreen	0:6ceefe1c53e4	105	#if _FATFS != 6502 /* Revision ID */
AdamGreen	0:6ceefe1c53e4	106	#error Wrong include file (ff.h).
AdamGreen	0:6ceefe1c53e4	107	#endif
AdamGreen	0:6ceefe1c53e4	108
AdamGreen	0:6ceefe1c53e4	109
AdamGreen	0:6ceefe1c53e4	110	/* Definitions on sector size */
AdamGreen	0:6ceefe1c53e4	111	#if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
AdamGreen	0:6ceefe1c53e4	112	#error Wrong sector size.
AdamGreen	0:6ceefe1c53e4	113	#endif
AdamGreen	0:6ceefe1c53e4	114	#if _MAX_SS != 512
AdamGreen	0:6ceefe1c53e4	115	#define SS(fs) ((fs)->ssize) /* Variable sector size */
AdamGreen	0:6ceefe1c53e4	116	#else
AdamGreen	0:6ceefe1c53e4	117	#define SS(fs) 512U /* Fixed sector size */
AdamGreen	0:6ceefe1c53e4	118	#endif
AdamGreen	0:6ceefe1c53e4	119
AdamGreen	0:6ceefe1c53e4	120
AdamGreen	0:6ceefe1c53e4	121	/* Reentrancy related */
AdamGreen	0:6ceefe1c53e4	122	#if _FS_REENTRANT
AdamGreen	0:6ceefe1c53e4	123	#if _USE_LFN == 1
AdamGreen	0:6ceefe1c53e4	124	#error Static LFN work area must not be used in re-entrant configuration.
AdamGreen	0:6ceefe1c53e4	125	#endif
AdamGreen	0:6ceefe1c53e4	126	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
AdamGreen	0:6ceefe1c53e4	127	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
AdamGreen	0:6ceefe1c53e4	128	#else
AdamGreen	0:6ceefe1c53e4	129	#define ENTER_FF(fs)
AdamGreen	0:6ceefe1c53e4	130	#define LEAVE_FF(fs, res) return res
AdamGreen	0:6ceefe1c53e4	131	#endif
AdamGreen	0:6ceefe1c53e4	132
AdamGreen	0:6ceefe1c53e4	133	#define ABORT(fs, res) { fp->flag \|= FA__ERROR; LEAVE_FF(fs, res); }
AdamGreen	0:6ceefe1c53e4	134
AdamGreen	0:6ceefe1c53e4	135
AdamGreen	0:6ceefe1c53e4	136	/* File shareing feature */
AdamGreen	0:6ceefe1c53e4	137	#if _FS_SHARE
AdamGreen	0:6ceefe1c53e4	138	#if _FS_READONLY
AdamGreen	0:6ceefe1c53e4	139	#error _FS_SHARE must be 0 on read-only cfg.
AdamGreen	0:6ceefe1c53e4	140	#endif
AdamGreen	0:6ceefe1c53e4	141	typedef struct {
AdamGreen	0:6ceefe1c53e4	142	FATFS fs; / File ID 1, volume (NULL:blank entry) */
AdamGreen	0:6ceefe1c53e4	143	DWORD clu; /* File ID 2, directory */
AdamGreen	0:6ceefe1c53e4	144	WORD idx; /* File ID 3, directory index */
AdamGreen	0:6ceefe1c53e4	145	WORD ctr; /* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:write mode */
AdamGreen	0:6ceefe1c53e4	146	} FILESEM;
AdamGreen	0:6ceefe1c53e4	147	#endif
AdamGreen	0:6ceefe1c53e4	148
AdamGreen	0:6ceefe1c53e4	149
AdamGreen	0:6ceefe1c53e4	150	/* Misc definitions */
AdamGreen	0:6ceefe1c53e4	151	#define LD_CLUST(dir) (((DWORD)LD_WORD(dir+DIR_FstClusHI)<<16) \| LD_WORD(dir+DIR_FstClusLO))
AdamGreen	0:6ceefe1c53e4	152	#define ST_CLUST(dir,cl) {ST_WORD(dir+DIR_FstClusLO, cl); ST_WORD(dir+DIR_FstClusHI, (DWORD)cl>>16);}
AdamGreen	0:6ceefe1c53e4	153
AdamGreen	0:6ceefe1c53e4	154
AdamGreen	0:6ceefe1c53e4	155	/* DBCS code ranges and SBCS extend char conversion table */
AdamGreen	0:6ceefe1c53e4	156
AdamGreen	0:6ceefe1c53e4	157	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
AdamGreen	0:6ceefe1c53e4	158	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
AdamGreen	0:6ceefe1c53e4	159	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
AdamGreen	0:6ceefe1c53e4	160	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
AdamGreen	0:6ceefe1c53e4	161	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
AdamGreen	0:6ceefe1c53e4	162	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
AdamGreen	0:6ceefe1c53e4	163	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
AdamGreen	0:6ceefe1c53e4	164	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
AdamGreen	0:6ceefe1c53e4	165	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
AdamGreen	0:6ceefe1c53e4	166
AdamGreen	0:6ceefe1c53e4	167	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
AdamGreen	0:6ceefe1c53e4	168	#define _DF1S 0x81
AdamGreen	0:6ceefe1c53e4	169	#define _DF1E 0xFE
AdamGreen	0:6ceefe1c53e4	170	#define _DS1S 0x40
AdamGreen	0:6ceefe1c53e4	171	#define _DS1E 0x7E
AdamGreen	0:6ceefe1c53e4	172	#define _DS2S 0x80
AdamGreen	0:6ceefe1c53e4	173	#define _DS2E 0xFE
AdamGreen	0:6ceefe1c53e4	174
AdamGreen	0:6ceefe1c53e4	175	#elif _CODE_PAGE == 949 /* Korean */
AdamGreen	0:6ceefe1c53e4	176	#define _DF1S 0x81
AdamGreen	0:6ceefe1c53e4	177	#define _DF1E 0xFE
AdamGreen	0:6ceefe1c53e4	178	#define _DS1S 0x41
AdamGreen	0:6ceefe1c53e4	179	#define _DS1E 0x5A
AdamGreen	0:6ceefe1c53e4	180	#define _DS2S 0x61
AdamGreen	0:6ceefe1c53e4	181	#define _DS2E 0x7A
AdamGreen	0:6ceefe1c53e4	182	#define _DS3S 0x81
AdamGreen	0:6ceefe1c53e4	183	#define _DS3E 0xFE
AdamGreen	0:6ceefe1c53e4	184
AdamGreen	0:6ceefe1c53e4	185	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
AdamGreen	0:6ceefe1c53e4	186	#define _DF1S 0x81
AdamGreen	0:6ceefe1c53e4	187	#define _DF1E 0xFE
AdamGreen	0:6ceefe1c53e4	188	#define _DS1S 0x40
AdamGreen	0:6ceefe1c53e4	189	#define _DS1E 0x7E
AdamGreen	0:6ceefe1c53e4	190	#define _DS2S 0xA1
AdamGreen	0:6ceefe1c53e4	191	#define _DS2E 0xFE
AdamGreen	0:6ceefe1c53e4	192
AdamGreen	0:6ceefe1c53e4	193	#elif _CODE_PAGE == 437 /* U.S. (OEM) */
AdamGreen	0:6ceefe1c53e4	194	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	195	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F,0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	196	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	197	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	198	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	199
AdamGreen	0:6ceefe1c53e4	200	#elif _CODE_PAGE == 720 /* Arabic (OEM) */
AdamGreen	0:6ceefe1c53e4	201	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	202	#define _EXCVT {0x80,0x81,0x45,0x41,0x84,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x49,0x49,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	203	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	204	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	205	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	206
AdamGreen	0:6ceefe1c53e4	207	#elif _CODE_PAGE == 737 /* Greek (OEM) */
AdamGreen	0:6ceefe1c53e4	208	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	209	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
AdamGreen	0:6ceefe1c53e4	210	0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	211	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	212	0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xE7,0xE8,0xF1,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	213
AdamGreen	0:6ceefe1c53e4	214	#elif _CODE_PAGE == 775 /* Baltic (OEM) */
AdamGreen	0:6ceefe1c53e4	215	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	216	#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	217	0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	218	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	219	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	220
AdamGreen	0:6ceefe1c53e4	221	#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
AdamGreen	0:6ceefe1c53e4	222	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	223	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	224	0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	225	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	226	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	227
AdamGreen	0:6ceefe1c53e4	228	#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
AdamGreen	0:6ceefe1c53e4	229	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	230	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F,0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	231	0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
AdamGreen	0:6ceefe1c53e4	232	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	233	0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	234
AdamGreen	0:6ceefe1c53e4	235	#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
AdamGreen	0:6ceefe1c53e4	236	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	237	#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F,0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
AdamGreen	0:6ceefe1c53e4	238	0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	239	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
AdamGreen	0:6ceefe1c53e4	240	0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	241
AdamGreen	0:6ceefe1c53e4	242	#elif _CODE_PAGE == 857 /* Turkish (OEM) */
AdamGreen	0:6ceefe1c53e4	243	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	244	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x98,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
AdamGreen	0:6ceefe1c53e4	245	0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	246	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	247	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0x59,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	248
AdamGreen	0:6ceefe1c53e4	249	#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
AdamGreen	0:6ceefe1c53e4	250	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	251	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	252	0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	253	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	254	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	255
AdamGreen	0:6ceefe1c53e4	256	#elif _CODE_PAGE == 862 /* Hebrew (OEM) */
AdamGreen	0:6ceefe1c53e4	257	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	258	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	259	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	260	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	261	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	262
AdamGreen	0:6ceefe1c53e4	263	#elif _CODE_PAGE == 866 /* Russian (OEM) */
AdamGreen	0:6ceefe1c53e4	264	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	265	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	266	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	267	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	268	0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	269
AdamGreen	0:6ceefe1c53e4	270	#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
AdamGreen	0:6ceefe1c53e4	271	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	272	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	273	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	274	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	275	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	276
AdamGreen	0:6ceefe1c53e4	277	#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
AdamGreen	0:6ceefe1c53e4	278	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	279	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
AdamGreen	0:6ceefe1c53e4	280	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xA3,0xB4,0xB5,0xB6,0xB7,0xB8,0xA5,0xAA,0xBB,0xBC,0xBD,0xBC,0xAF, \
AdamGreen	0:6ceefe1c53e4	281	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	282	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
AdamGreen	0:6ceefe1c53e4	283
AdamGreen	0:6ceefe1c53e4	284	#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
AdamGreen	0:6ceefe1c53e4	285	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	286	#define _EXCVT {0x80,0x81,0x82,0x82,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x80,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
AdamGreen	0:6ceefe1c53e4	287	0xA0,0xA2,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB2,0xA5,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xA3,0xBD,0xBD,0xAF, \
AdamGreen	0:6ceefe1c53e4	288	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	289	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF}
AdamGreen	0:6ceefe1c53e4	290
AdamGreen	0:6ceefe1c53e4	291	#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
AdamGreen	0:6ceefe1c53e4	292	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	293	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0xAd,0x9B,0x8C,0x9D,0xAE,0x9F, \
AdamGreen	0:6ceefe1c53e4	294	0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	295	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	296	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
AdamGreen	0:6ceefe1c53e4	297
AdamGreen	0:6ceefe1c53e4	298	#elif _CODE_PAGE == 1253 /* Greek (Windows) */
AdamGreen	0:6ceefe1c53e4	299	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	300	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	301	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	302	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xA2,0xB8,0xB9,0xBA, \
AdamGreen	0:6ceefe1c53e4	303	0xE0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xFB,0xBC,0xFD,0xBF,0xFF}
AdamGreen	0:6ceefe1c53e4	304
AdamGreen	0:6ceefe1c53e4	305	#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
AdamGreen	0:6ceefe1c53e4	306	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	307	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	308	0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	309	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	310	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
AdamGreen	0:6ceefe1c53e4	311
AdamGreen	0:6ceefe1c53e4	312	#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
AdamGreen	0:6ceefe1c53e4	313	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	314	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	315	0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	316	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	317	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	318
AdamGreen	0:6ceefe1c53e4	319	#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
AdamGreen	0:6ceefe1c53e4	320	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	321	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x8C,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	322	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	323	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	324	0x41,0xE1,0x41,0xE3,0xE4,0xE5,0xE6,0x43,0x45,0x45,0x45,0x45,0xEC,0xED,0x49,0x49,0xF0,0xF1,0xF2,0xF3,0x4F,0xF5,0xF6,0xF7,0xF8,0x55,0xFA,0x55,0x55,0xFD,0xFE,0xFF}
AdamGreen	0:6ceefe1c53e4	325
AdamGreen	0:6ceefe1c53e4	326	#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
AdamGreen	0:6ceefe1c53e4	327	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	328	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	329	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xBC,0xBD,0xBE,0xAF, \
AdamGreen	0:6ceefe1c53e4	330	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	331	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
AdamGreen	0:6ceefe1c53e4	332
AdamGreen	0:6ceefe1c53e4	333	#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
AdamGreen	0:6ceefe1c53e4	334	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	335	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0xAC,0x9D,0x9E,0x9F, \
AdamGreen	0:6ceefe1c53e4	336	0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
AdamGreen	0:6ceefe1c53e4	337	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
AdamGreen	0:6ceefe1c53e4	338	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xEC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xFE,0x9F}
AdamGreen	0:6ceefe1c53e4	339
AdamGreen	0:6ceefe1c53e4	340	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
AdamGreen	0:6ceefe1c53e4	341	#if _USE_LFN
AdamGreen	0:6ceefe1c53e4	342	#error Cannot use LFN feature without valid code page.
AdamGreen	0:6ceefe1c53e4	343	#endif
AdamGreen	0:6ceefe1c53e4	344	#define _DF1S 0
AdamGreen	0:6ceefe1c53e4	345
AdamGreen	0:6ceefe1c53e4	346	#else
AdamGreen	0:6ceefe1c53e4	347	#error Unknown code page
AdamGreen	0:6ceefe1c53e4	348
AdamGreen	0:6ceefe1c53e4	349	#endif
AdamGreen	0:6ceefe1c53e4	350
AdamGreen	0:6ceefe1c53e4	351
AdamGreen	0:6ceefe1c53e4	352	/* Character code support macros */
AdamGreen	0:6ceefe1c53e4	353	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
AdamGreen	0:6ceefe1c53e4	354	#define IsLower(c) (((c)>='a')&&((c)<='z'))
AdamGreen	0:6ceefe1c53e4	355	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
AdamGreen	0:6ceefe1c53e4	356
AdamGreen	0:6ceefe1c53e4	357	#if _DF1S /* Code page is DBCS */
AdamGreen	0:6ceefe1c53e4	358
AdamGreen	0:6ceefe1c53e4	359	#ifdef _DF2S /* Two 1st byte areas */
AdamGreen	0:6ceefe1c53e4	360	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
AdamGreen	0:6ceefe1c53e4	361	#else /* One 1st byte area */
AdamGreen	0:6ceefe1c53e4	362	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
AdamGreen	0:6ceefe1c53e4	363	#endif
AdamGreen	0:6ceefe1c53e4	364
AdamGreen	0:6ceefe1c53e4	365	#ifdef _DS3S /* Three 2nd byte areas */
AdamGreen	0:6ceefe1c53e4	366	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
AdamGreen	0:6ceefe1c53e4	367	#else /* Two 2nd byte areas */
AdamGreen	0:6ceefe1c53e4	368	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
AdamGreen	0:6ceefe1c53e4	369	#endif
AdamGreen	0:6ceefe1c53e4	370
AdamGreen	0:6ceefe1c53e4	371	#else /* Code page is SBCS */
AdamGreen	0:6ceefe1c53e4	372
AdamGreen	0:6ceefe1c53e4	373	#define IsDBCS1(c) 0
AdamGreen	0:6ceefe1c53e4	374	#define IsDBCS2(c) 0
AdamGreen	0:6ceefe1c53e4	375
AdamGreen	0:6ceefe1c53e4	376	#endif /* _DF1S */
AdamGreen	0:6ceefe1c53e4	377
AdamGreen	0:6ceefe1c53e4	378
AdamGreen	0:6ceefe1c53e4	379	/* Name status flags */
AdamGreen	0:6ceefe1c53e4	380	#define NS 11 /* Index of name status byte in fn[] */
AdamGreen	0:6ceefe1c53e4	381	#define NS_LOSS 0x01 /* Out of 8.3 format */
AdamGreen	0:6ceefe1c53e4	382	#define NS_LFN 0x02 /* Force to create LFN entry */
AdamGreen	0:6ceefe1c53e4	383	#define NS_LAST 0x04 /* Last segment */
AdamGreen	0:6ceefe1c53e4	384	#define NS_BODY 0x08 /* Lower case flag (body) */
AdamGreen	0:6ceefe1c53e4	385	#define NS_EXT 0x10 /* Lower case flag (ext) */
AdamGreen	0:6ceefe1c53e4	386	#define NS_DOT 0x20 /* Dot entry */
AdamGreen	0:6ceefe1c53e4	387
AdamGreen	0:6ceefe1c53e4	388
AdamGreen	0:6ceefe1c53e4	389	/* FAT sub-type boundaries */
AdamGreen	0:6ceefe1c53e4	390	/* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */
AdamGreen	0:6ceefe1c53e4	391	#define MIN_FAT16 4086 /* Minimum number of clusters for FAT16 */
AdamGreen	0:6ceefe1c53e4	392	#define MIN_FAT32 65526 /* Minimum number of clusters for FAT32 */
AdamGreen	0:6ceefe1c53e4	393
AdamGreen	0:6ceefe1c53e4	394
AdamGreen	0:6ceefe1c53e4	395	/* FatFs refers the members in the FAT structures as byte array instead of
AdamGreen	0:6ceefe1c53e4	396	/ structure member because the structure is not binary compatible between
AdamGreen	0:6ceefe1c53e4	397	/ different platforms */
AdamGreen	0:6ceefe1c53e4	398
AdamGreen	0:6ceefe1c53e4	399	#define BS_jmpBoot 0 /* Jump instruction (3) */
AdamGreen	0:6ceefe1c53e4	400	#define BS_OEMName 3 /* OEM name (8) */
AdamGreen	0:6ceefe1c53e4	401	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
AdamGreen	0:6ceefe1c53e4	402	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
AdamGreen	0:6ceefe1c53e4	403	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
AdamGreen	0:6ceefe1c53e4	404	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
AdamGreen	0:6ceefe1c53e4	405	#define BPB_RootEntCnt 17 /* Number of root dir entries for FAT12/16 (2) */
AdamGreen	0:6ceefe1c53e4	406	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
AdamGreen	0:6ceefe1c53e4	407	#define BPB_Media 21 /* Media descriptor (1) */
AdamGreen	0:6ceefe1c53e4	408	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
AdamGreen	0:6ceefe1c53e4	409	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
AdamGreen	0:6ceefe1c53e4	410	#define BPB_NumHeads 26 /* Number of heads (2) */
AdamGreen	0:6ceefe1c53e4	411	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
AdamGreen	0:6ceefe1c53e4	412	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
AdamGreen	0:6ceefe1c53e4	413	#define BS_DrvNum 36 /* Physical drive number (2) */
AdamGreen	0:6ceefe1c53e4	414	#define BS_BootSig 38 /* Extended boot signature (1) */
AdamGreen	0:6ceefe1c53e4	415	#define BS_VolID 39 /* Volume serial number (4) */
AdamGreen	0:6ceefe1c53e4	416	#define BS_VolLab 43 /* Volume label (8) */
AdamGreen	0:6ceefe1c53e4	417	#define BS_FilSysType 54 /* File system type (1) */
AdamGreen	0:6ceefe1c53e4	418	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
AdamGreen	0:6ceefe1c53e4	419	#define BPB_ExtFlags 40 /* Extended flags (2) */
AdamGreen	0:6ceefe1c53e4	420	#define BPB_FSVer 42 /* File system version (2) */
AdamGreen	0:6ceefe1c53e4	421	#define BPB_RootClus 44 /* Root dir first cluster (4) */
AdamGreen	0:6ceefe1c53e4	422	#define BPB_FSInfo 48 /* Offset of FSInfo sector (2) */
AdamGreen	0:6ceefe1c53e4	423	#define BPB_BkBootSec 50 /* Offset of backup boot sectot (2) */
AdamGreen	0:6ceefe1c53e4	424	#define BS_DrvNum32 64 /* Physical drive number (2) */
AdamGreen	0:6ceefe1c53e4	425	#define BS_BootSig32 66 /* Extended boot signature (1) */
AdamGreen	0:6ceefe1c53e4	426	#define BS_VolID32 67 /* Volume serial number (4) */
AdamGreen	0:6ceefe1c53e4	427	#define BS_VolLab32 71 /* Volume label (8) */
AdamGreen	0:6ceefe1c53e4	428	#define BS_FilSysType32 82 /* File system type (1) */
AdamGreen	0:6ceefe1c53e4	429	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
AdamGreen	0:6ceefe1c53e4	430	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
AdamGreen	0:6ceefe1c53e4	431	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
AdamGreen	0:6ceefe1c53e4	432	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
AdamGreen	0:6ceefe1c53e4	433	#define MBR_Table 446 /* MBR: Partition table offset (2) */
AdamGreen	0:6ceefe1c53e4	434	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
AdamGreen	0:6ceefe1c53e4	435	#define BS_55AA 510 /* Boot sector signature (2) */
AdamGreen	0:6ceefe1c53e4	436
AdamGreen	0:6ceefe1c53e4	437	#define DIR_Name 0 /* Short file name (11) */
AdamGreen	0:6ceefe1c53e4	438	#define DIR_Attr 11 /* Attribute (1) */
AdamGreen	0:6ceefe1c53e4	439	#define DIR_NTres 12 /* NT flag (1) */
AdamGreen	0:6ceefe1c53e4	440	#define DIR_CrtTime 14 /* Created time (2) */
AdamGreen	0:6ceefe1c53e4	441	#define DIR_CrtDate 16 /* Created date (2) */
AdamGreen	0:6ceefe1c53e4	442	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
AdamGreen	0:6ceefe1c53e4	443	#define DIR_WrtTime 22 /* Modified time (2) */
AdamGreen	0:6ceefe1c53e4	444	#define DIR_WrtDate 24 /* Modified date (2) */
AdamGreen	0:6ceefe1c53e4	445	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
AdamGreen	0:6ceefe1c53e4	446	#define DIR_FileSize 28 /* File size (4) */
AdamGreen	0:6ceefe1c53e4	447	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
AdamGreen	0:6ceefe1c53e4	448	#define LDIR_Attr 11 /* LFN attribute (1) */
AdamGreen	0:6ceefe1c53e4	449	#define LDIR_Type 12 /* LFN type (1) */
AdamGreen	0:6ceefe1c53e4	450	#define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
AdamGreen	0:6ceefe1c53e4	451	#define LDIR_FstClusLO 26 /* Filled by zero (0) */
AdamGreen	0:6ceefe1c53e4	452	#define SZ_DIR 32 /* Size of a directory entry */
AdamGreen	0:6ceefe1c53e4	453	#define LLE 0x40 /* Last long entry flag in LDIR_Ord */
AdamGreen	0:6ceefe1c53e4	454	#define DDE 0xE5 /* Deleted directory enrty mark in DIR_Name[0] */
AdamGreen	0:6ceefe1c53e4	455	#define NDDE 0x05 /* Replacement of a character collides with DDE */
AdamGreen	0:6ceefe1c53e4	456
AdamGreen	0:6ceefe1c53e4	457
AdamGreen	0:6ceefe1c53e4	458	/------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	459	/* Module private work area */
AdamGreen	0:6ceefe1c53e4	460	/------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	461	/* Note that uninitialized variables with static duration are
AdamGreen	0:6ceefe1c53e4	462	/ zeroed/nulled at start-up. If not, the compiler or start-up
AdamGreen	0:6ceefe1c53e4	463	/ routine is out of ANSI-C standard.
AdamGreen	0:6ceefe1c53e4	464	*/
AdamGreen	0:6ceefe1c53e4	465
AdamGreen	0:6ceefe1c53e4	466	#if _VOLUMES
AdamGreen	0:6ceefe1c53e4	467	static
AdamGreen	0:6ceefe1c53e4	468	FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
AdamGreen	0:6ceefe1c53e4	469	#else
AdamGreen	0:6ceefe1c53e4	470	#error Number of volumes must not be 0.
AdamGreen	0:6ceefe1c53e4	471	#endif
AdamGreen	0:6ceefe1c53e4	472
AdamGreen	0:6ceefe1c53e4	473	static
AdamGreen	0:6ceefe1c53e4	474	WORD Fsid; /* File system mount ID */
AdamGreen	0:6ceefe1c53e4	475
AdamGreen	0:6ceefe1c53e4	476	#if _FS_RPATH
AdamGreen	0:6ceefe1c53e4	477	static
AdamGreen	0:6ceefe1c53e4	478	BYTE CurrVol; /* Current drive */
AdamGreen	0:6ceefe1c53e4	479	#endif
AdamGreen	0:6ceefe1c53e4	480
AdamGreen	0:6ceefe1c53e4	481	#if _FS_SHARE
AdamGreen	0:6ceefe1c53e4	482	static
AdamGreen	0:6ceefe1c53e4	483	FILESEM Files[_FS_SHARE]; /* File lock semaphores */
AdamGreen	0:6ceefe1c53e4	484	#endif
AdamGreen	0:6ceefe1c53e4	485
AdamGreen	0:6ceefe1c53e4	486	#if _USE_LFN == 0 /* No LFN feature */
AdamGreen	0:6ceefe1c53e4	487	#define DEF_NAMEBUF BYTE sfn[12]
AdamGreen	0:6ceefe1c53e4	488	#define INIT_BUF(dobj) (dobj).fn = sfn
AdamGreen	0:6ceefe1c53e4	489	#define FREE_BUF()
AdamGreen	0:6ceefe1c53e4	490
AdamGreen	0:6ceefe1c53e4	491	#elif _USE_LFN == 1 /* LFN feature with static working buffer */
AdamGreen	0:6ceefe1c53e4	492	static WCHAR LfnBuf[_MAX_LFN+1];
AdamGreen	0:6ceefe1c53e4	493	#define DEF_NAMEBUF BYTE sfn[12]
AdamGreen	0:6ceefe1c53e4	494	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
AdamGreen	0:6ceefe1c53e4	495	#define FREE_BUF()
AdamGreen	0:6ceefe1c53e4	496
AdamGreen	0:6ceefe1c53e4	497	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
AdamGreen	0:6ceefe1c53e4	498	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
AdamGreen	0:6ceefe1c53e4	499	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
AdamGreen	0:6ceefe1c53e4	500	#define FREE_BUF()
AdamGreen	0:6ceefe1c53e4	501
AdamGreen	0:6ceefe1c53e4	502	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
AdamGreen	0:6ceefe1c53e4	503	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
AdamGreen	0:6ceefe1c53e4	504	#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
AdamGreen	0:6ceefe1c53e4	505	if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
AdamGreen	0:6ceefe1c53e4	506	(dobj).lfn = lfn; (dobj).fn = sfn; }
AdamGreen	0:6ceefe1c53e4	507	#define FREE_BUF() ff_memfree(lfn)
AdamGreen	0:6ceefe1c53e4	508
AdamGreen	0:6ceefe1c53e4	509	#else
AdamGreen	0:6ceefe1c53e4	510	#error Wrong LFN configuration.
AdamGreen	0:6ceefe1c53e4	511	#endif
AdamGreen	0:6ceefe1c53e4	512
AdamGreen	0:6ceefe1c53e4	513
AdamGreen	0:6ceefe1c53e4	514
AdamGreen	0:6ceefe1c53e4	515
AdamGreen	0:6ceefe1c53e4	516	/*--------------------------------------------------------------------------
AdamGreen	0:6ceefe1c53e4	517
AdamGreen	0:6ceefe1c53e4	518	Module Private Functions
AdamGreen	0:6ceefe1c53e4	519
AdamGreen	0:6ceefe1c53e4	520	---------------------------------------------------------------------------*/
AdamGreen	0:6ceefe1c53e4	521
AdamGreen	0:6ceefe1c53e4	522
AdamGreen	0:6ceefe1c53e4	523	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	524	/* String functions */
AdamGreen	0:6ceefe1c53e4	525	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	526
AdamGreen	0:6ceefe1c53e4	527	/* Copy memory to memory */
AdamGreen	0:6ceefe1c53e4	528	static
AdamGreen	0:6ceefe1c53e4	529	void mem_cpy (void* dst, const void* src, UINT cnt) {
AdamGreen	0:6ceefe1c53e4	530	BYTE d = (BYTE)dst;
AdamGreen	0:6ceefe1c53e4	531	const BYTE s = (const BYTE)src;
AdamGreen	0:6ceefe1c53e4	532
AdamGreen	0:6ceefe1c53e4	533	#if _WORD_ACCESS == 1
AdamGreen	0:6ceefe1c53e4	534	while (cnt >= sizeof(int)) {
AdamGreen	0:6ceefe1c53e4	535	(int)d = (int)s;
AdamGreen	0:6ceefe1c53e4	536	d += sizeof(int); s += sizeof(int);
AdamGreen	0:6ceefe1c53e4	537	cnt -= sizeof(int);
AdamGreen	0:6ceefe1c53e4	538	}
AdamGreen	0:6ceefe1c53e4	539	#endif
AdamGreen	0:6ceefe1c53e4	540	while (cnt--)
AdamGreen	0:6ceefe1c53e4	541	d++ = s++;
AdamGreen	0:6ceefe1c53e4	542	}
AdamGreen	0:6ceefe1c53e4	543
AdamGreen	0:6ceefe1c53e4	544	/* Fill memory */
AdamGreen	0:6ceefe1c53e4	545	static
AdamGreen	0:6ceefe1c53e4	546	void mem_set (void* dst, int val, UINT cnt) {
AdamGreen	0:6ceefe1c53e4	547	BYTE d = (BYTE)dst;
AdamGreen	0:6ceefe1c53e4	548
AdamGreen	0:6ceefe1c53e4	549	while (cnt--)
AdamGreen	0:6ceefe1c53e4	550	*d++ = (BYTE)val;
AdamGreen	0:6ceefe1c53e4	551	}
AdamGreen	0:6ceefe1c53e4	552
AdamGreen	0:6ceefe1c53e4	553	/* Compare memory to memory */
AdamGreen	0:6ceefe1c53e4	554	static
AdamGreen	0:6ceefe1c53e4	555	int mem_cmp (const void* dst, const void* src, UINT cnt) {
AdamGreen	0:6ceefe1c53e4	556	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
AdamGreen	0:6ceefe1c53e4	557	int r = 0;
AdamGreen	0:6ceefe1c53e4	558
AdamGreen	0:6ceefe1c53e4	559	while (cnt-- && (r = d++ - s++) == 0) ;
AdamGreen	0:6ceefe1c53e4	560	return r;
AdamGreen	0:6ceefe1c53e4	561	}
AdamGreen	0:6ceefe1c53e4	562
AdamGreen	0:6ceefe1c53e4	563	/* Check if chr is contained in the string */
AdamGreen	0:6ceefe1c53e4	564	static
AdamGreen	0:6ceefe1c53e4	565	int chk_chr (const char* str, int chr) {
AdamGreen	0:6ceefe1c53e4	566	while (str && str != chr) str++;
AdamGreen	0:6ceefe1c53e4	567	return *str;
AdamGreen	0:6ceefe1c53e4	568	}
AdamGreen	0:6ceefe1c53e4	569
AdamGreen	0:6ceefe1c53e4	570
AdamGreen	0:6ceefe1c53e4	571
AdamGreen	0:6ceefe1c53e4	572	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	573	/* Request/Release grant to access the volume */
AdamGreen	0:6ceefe1c53e4	574	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	575	#if _FS_REENTRANT
AdamGreen	0:6ceefe1c53e4	576
AdamGreen	0:6ceefe1c53e4	577	static
AdamGreen	0:6ceefe1c53e4	578	int lock_fs (
AdamGreen	0:6ceefe1c53e4	579	FATFS fs / File system object */
AdamGreen	0:6ceefe1c53e4	580	)
AdamGreen	0:6ceefe1c53e4	581	{
AdamGreen	0:6ceefe1c53e4	582	return ff_req_grant(fs->sobj);
AdamGreen	0:6ceefe1c53e4	583	}
AdamGreen	0:6ceefe1c53e4	584
AdamGreen	0:6ceefe1c53e4	585
AdamGreen	0:6ceefe1c53e4	586	static
AdamGreen	0:6ceefe1c53e4	587	void unlock_fs (
AdamGreen	0:6ceefe1c53e4	588	FATFS fs, / File system object */
AdamGreen	0:6ceefe1c53e4	589	FRESULT res /* Result code to be returned */
AdamGreen	0:6ceefe1c53e4	590	)
AdamGreen	0:6ceefe1c53e4	591	{
AdamGreen	0:6ceefe1c53e4	592	if (res != FR_NOT_ENABLED &&
AdamGreen	0:6ceefe1c53e4	593	res != FR_INVALID_DRIVE &&
AdamGreen	0:6ceefe1c53e4	594	res != FR_INVALID_OBJECT &&
AdamGreen	0:6ceefe1c53e4	595	res != FR_TIMEOUT) {
AdamGreen	0:6ceefe1c53e4	596	ff_rel_grant(fs->sobj);
AdamGreen	0:6ceefe1c53e4	597	}
AdamGreen	0:6ceefe1c53e4	598	}
AdamGreen	0:6ceefe1c53e4	599	#endif
AdamGreen	0:6ceefe1c53e4	600
AdamGreen	0:6ceefe1c53e4	601
AdamGreen	0:6ceefe1c53e4	602
AdamGreen	0:6ceefe1c53e4	603	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	604	/* File shareing control functions */
AdamGreen	0:6ceefe1c53e4	605	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	606	#if _FS_SHARE
AdamGreen	0:6ceefe1c53e4	607
AdamGreen	0:6ceefe1c53e4	608	static
AdamGreen	0:6ceefe1c53e4	609	FRESULT chk_lock ( /* Check if the file can be accessed */
AdamGreen	0:6ceefe1c53e4	610	FATFS_DIR* dj, /* Directory object pointing the file to be checked */
AdamGreen	0:6ceefe1c53e4	611	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
AdamGreen	0:6ceefe1c53e4	612	)
AdamGreen	0:6ceefe1c53e4	613	{
AdamGreen	0:6ceefe1c53e4	614	UINT i, be;
AdamGreen	0:6ceefe1c53e4	615
AdamGreen	0:6ceefe1c53e4	616	/* Search file semaphore table */
AdamGreen	0:6ceefe1c53e4	617	for (i = be = 0; i < _FS_SHARE; i++) {
AdamGreen	0:6ceefe1c53e4	618	if (Files[i].fs) { /* Existing entry */
AdamGreen	0:6ceefe1c53e4	619	if (Files[i].fs == dj->fs && /* Check if the file matched with an open file */
AdamGreen	0:6ceefe1c53e4	620	Files[i].clu == dj->sclust &&
AdamGreen	0:6ceefe1c53e4	621	Files[i].idx == dj->index) break;
AdamGreen	0:6ceefe1c53e4	622	} else { /* Blank entry */
AdamGreen	0:6ceefe1c53e4	623	be++;
AdamGreen	0:6ceefe1c53e4	624	}
AdamGreen	0:6ceefe1c53e4	625	}
AdamGreen	0:6ceefe1c53e4	626	if (i == _FS_SHARE) /* The file is not opened */
AdamGreen	0:6ceefe1c53e4	627	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new file? */
AdamGreen	0:6ceefe1c53e4	628
AdamGreen	0:6ceefe1c53e4	629	/* The file has been opened. Reject any open against writing file and all write mode open */
AdamGreen	0:6ceefe1c53e4	630	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
AdamGreen	0:6ceefe1c53e4	631	}
AdamGreen	0:6ceefe1c53e4	632
AdamGreen	0:6ceefe1c53e4	633
AdamGreen	0:6ceefe1c53e4	634	static
AdamGreen	0:6ceefe1c53e4	635	int enq_lock (void) /* Check if an entry is available for a new file */
AdamGreen	0:6ceefe1c53e4	636	{
AdamGreen	0:6ceefe1c53e4	637	UINT i;
AdamGreen	0:6ceefe1c53e4	638
AdamGreen	0:6ceefe1c53e4	639	for (i = 0; i < _FS_SHARE && Files[i].fs; i++) ;
AdamGreen	0:6ceefe1c53e4	640	return (i == _FS_SHARE) ? 0 : 1;
AdamGreen	0:6ceefe1c53e4	641	}
AdamGreen	0:6ceefe1c53e4	642
AdamGreen	0:6ceefe1c53e4	643
AdamGreen	0:6ceefe1c53e4	644	static
AdamGreen	0:6ceefe1c53e4	645	UINT inc_lock ( /* Increment file open counter and returns its index (0:int error) */
AdamGreen	0:6ceefe1c53e4	646	FATFS_DIR* dj, /* Directory object pointing the file to register or increment */
AdamGreen	0:6ceefe1c53e4	647	int acc /* Desired access mode (0:Read, !0:Write) */
AdamGreen	0:6ceefe1c53e4	648	)
AdamGreen	0:6ceefe1c53e4	649	{
AdamGreen	0:6ceefe1c53e4	650	UINT i;
AdamGreen	0:6ceefe1c53e4	651
AdamGreen	0:6ceefe1c53e4	652
AdamGreen	0:6ceefe1c53e4	653	for (i = 0; i < _FS_SHARE; i++) { /* Find the file */
AdamGreen	0:6ceefe1c53e4	654	if (Files[i].fs == dj->fs &&
AdamGreen	0:6ceefe1c53e4	655	Files[i].clu == dj->sclust &&
AdamGreen	0:6ceefe1c53e4	656	Files[i].idx == dj->index) break;
AdamGreen	0:6ceefe1c53e4	657	}
AdamGreen	0:6ceefe1c53e4	658
AdamGreen	0:6ceefe1c53e4	659	if (i == _FS_SHARE) { /* Not opened. Register it as new. */
AdamGreen	0:6ceefe1c53e4	660	for (i = 0; i < _FS_SHARE && Files[i].fs; i++) ;
AdamGreen	0:6ceefe1c53e4	661	if (i == _FS_SHARE) return 0; /* No space to register (int err) */
AdamGreen	0:6ceefe1c53e4	662	Files[i].fs = dj->fs;
AdamGreen	0:6ceefe1c53e4	663	Files[i].clu = dj->sclust;
AdamGreen	0:6ceefe1c53e4	664	Files[i].idx = dj->index;
AdamGreen	0:6ceefe1c53e4	665	Files[i].ctr = 0;
AdamGreen	0:6ceefe1c53e4	666	}
AdamGreen	0:6ceefe1c53e4	667
AdamGreen	0:6ceefe1c53e4	668	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
AdamGreen	0:6ceefe1c53e4	669
AdamGreen	0:6ceefe1c53e4	670	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
AdamGreen	0:6ceefe1c53e4	671
AdamGreen	0:6ceefe1c53e4	672	return i + 1;
AdamGreen	0:6ceefe1c53e4	673	}
AdamGreen	0:6ceefe1c53e4	674
AdamGreen	0:6ceefe1c53e4	675
AdamGreen	0:6ceefe1c53e4	676	static
AdamGreen	0:6ceefe1c53e4	677	FRESULT dec_lock ( /* Decrement file open counter */
AdamGreen	0:6ceefe1c53e4	678	UINT i /* Semaphore index */
AdamGreen	0:6ceefe1c53e4	679	)
AdamGreen	0:6ceefe1c53e4	680	{
AdamGreen	0:6ceefe1c53e4	681	WORD n;
AdamGreen	0:6ceefe1c53e4	682	FRESULT res;
AdamGreen	0:6ceefe1c53e4	683
AdamGreen	0:6ceefe1c53e4	684
AdamGreen	0:6ceefe1c53e4	685	if (--i < _FS_SHARE) {
AdamGreen	0:6ceefe1c53e4	686	n = Files[i].ctr;
AdamGreen	0:6ceefe1c53e4	687	if (n == 0x100) n = 0;
AdamGreen	0:6ceefe1c53e4	688	if (n) n--;
AdamGreen	0:6ceefe1c53e4	689	Files[i].ctr = n;
AdamGreen	0:6ceefe1c53e4	690	if (!n) Files[i].fs = 0;
AdamGreen	0:6ceefe1c53e4	691	res = FR_OK;
AdamGreen	0:6ceefe1c53e4	692	} else {
AdamGreen	0:6ceefe1c53e4	693	res = FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	694	}
AdamGreen	0:6ceefe1c53e4	695	return res;
AdamGreen	0:6ceefe1c53e4	696	}
AdamGreen	0:6ceefe1c53e4	697
AdamGreen	0:6ceefe1c53e4	698
AdamGreen	0:6ceefe1c53e4	699	static
AdamGreen	0:6ceefe1c53e4	700	void clear_lock ( /* Clear lock entries of the volume */
AdamGreen	0:6ceefe1c53e4	701	FATFS *fs
AdamGreen	0:6ceefe1c53e4	702	)
AdamGreen	0:6ceefe1c53e4	703	{
AdamGreen	0:6ceefe1c53e4	704	UINT i;
AdamGreen	0:6ceefe1c53e4	705
AdamGreen	0:6ceefe1c53e4	706	for (i = 0; i < _FS_SHARE; i++) {
AdamGreen	0:6ceefe1c53e4	707	if (Files[i].fs == fs) Files[i].fs = 0;
AdamGreen	0:6ceefe1c53e4	708	}
AdamGreen	0:6ceefe1c53e4	709	}
AdamGreen	0:6ceefe1c53e4	710	#endif
AdamGreen	0:6ceefe1c53e4	711
AdamGreen	0:6ceefe1c53e4	712
AdamGreen	0:6ceefe1c53e4	713
AdamGreen	0:6ceefe1c53e4	714	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	715	/* Change window offset */
AdamGreen	0:6ceefe1c53e4	716	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	717
AdamGreen	0:6ceefe1c53e4	718	static
AdamGreen	0:6ceefe1c53e4	719	FRESULT move_window (
AdamGreen	0:6ceefe1c53e4	720	FATFS fs, / File system object */
AdamGreen	0:6ceefe1c53e4	721	DWORD sector /* Sector number to make appearance in the fs->win[] */
AdamGreen	0:6ceefe1c53e4	722	) /* Move to zero only writes back dirty window */
AdamGreen	0:6ceefe1c53e4	723	{
AdamGreen	0:6ceefe1c53e4	724	DWORD wsect;
AdamGreen	0:6ceefe1c53e4	725
AdamGreen	0:6ceefe1c53e4	726
AdamGreen	0:6ceefe1c53e4	727	wsect = fs->winsect;
AdamGreen	0:6ceefe1c53e4	728	if (wsect != sector) { /* Changed current window */
AdamGreen	0:6ceefe1c53e4	729	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	730	if (fs->wflag) { /* Write back dirty window if needed */
AdamGreen	0:6ceefe1c53e4	731	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK)
AdamGreen	0:6ceefe1c53e4	732	return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	733	fs->wflag = 0;
AdamGreen	0:6ceefe1c53e4	734	if (wsect < (fs->fatbase + fs->fsize)) { /* In FAT area */
AdamGreen	0:6ceefe1c53e4	735	BYTE nf;
AdamGreen	0:6ceefe1c53e4	736	for (nf = fs->n_fats; nf > 1; nf--) { /* Reflect the change to all FAT copies */
AdamGreen	0:6ceefe1c53e4	737	wsect += fs->fsize;
AdamGreen	0:6ceefe1c53e4	738	disk_write(fs->drv, fs->win, wsect, 1);
AdamGreen	0:6ceefe1c53e4	739	}
AdamGreen	0:6ceefe1c53e4	740	}
AdamGreen	0:6ceefe1c53e4	741	}
AdamGreen	0:6ceefe1c53e4	742	#endif
AdamGreen	0:6ceefe1c53e4	743	if (sector) {
AdamGreen	0:6ceefe1c53e4	744	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK)
AdamGreen	0:6ceefe1c53e4	745	return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	746	fs->winsect = sector;
AdamGreen	0:6ceefe1c53e4	747	}
AdamGreen	0:6ceefe1c53e4	748	}
AdamGreen	0:6ceefe1c53e4	749
AdamGreen	0:6ceefe1c53e4	750	return FR_OK;
AdamGreen	0:6ceefe1c53e4	751	}
AdamGreen	0:6ceefe1c53e4	752
AdamGreen	0:6ceefe1c53e4	753
AdamGreen	0:6ceefe1c53e4	754
AdamGreen	0:6ceefe1c53e4	755
AdamGreen	0:6ceefe1c53e4	756	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	757	/* Clean-up cached data */
AdamGreen	0:6ceefe1c53e4	758	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	759	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	760	static
AdamGreen	0:6ceefe1c53e4	761	FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */
AdamGreen	0:6ceefe1c53e4	762	FATFS fs / File system object */
AdamGreen	0:6ceefe1c53e4	763	)
AdamGreen	0:6ceefe1c53e4	764	{
AdamGreen	0:6ceefe1c53e4	765	FRESULT res;
AdamGreen	0:6ceefe1c53e4	766
AdamGreen	0:6ceefe1c53e4	767
AdamGreen	0:6ceefe1c53e4	768	res = move_window(fs, 0);
AdamGreen	0:6ceefe1c53e4	769	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	770	/* Update FSInfo sector if needed */
AdamGreen	0:6ceefe1c53e4	771	if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
AdamGreen	0:6ceefe1c53e4	772	fs->winsect = 0;
AdamGreen	0:6ceefe1c53e4	773	/* Create FSInfo structure */
AdamGreen	0:6ceefe1c53e4	774	mem_set(fs->win, 0, 512);
AdamGreen	0:6ceefe1c53e4	775	ST_WORD(fs->win+BS_55AA, 0xAA55);
AdamGreen	0:6ceefe1c53e4	776	ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
AdamGreen	0:6ceefe1c53e4	777	ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
AdamGreen	0:6ceefe1c53e4	778	ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
AdamGreen	0:6ceefe1c53e4	779	ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
AdamGreen	0:6ceefe1c53e4	780	/* Write it into the FSInfo sector */
AdamGreen	0:6ceefe1c53e4	781	disk_write(fs->drv, fs->win, fs->fsi_sector, 1);
AdamGreen	0:6ceefe1c53e4	782	fs->fsi_flag = 0;
AdamGreen	0:6ceefe1c53e4	783	}
AdamGreen	0:6ceefe1c53e4	784	/* Make sure that no pending write process in the physical drive */
AdamGreen	0:6ceefe1c53e4	785	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
AdamGreen	0:6ceefe1c53e4	786	res = FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	787	}
AdamGreen	0:6ceefe1c53e4	788
AdamGreen	0:6ceefe1c53e4	789	return res;
AdamGreen	0:6ceefe1c53e4	790	}
AdamGreen	0:6ceefe1c53e4	791	#endif
AdamGreen	0:6ceefe1c53e4	792
AdamGreen	0:6ceefe1c53e4	793
AdamGreen	0:6ceefe1c53e4	794
AdamGreen	0:6ceefe1c53e4	795
AdamGreen	0:6ceefe1c53e4	796	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	797	/* Get sector# from cluster# */
AdamGreen	0:6ceefe1c53e4	798	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	799
AdamGreen	0:6ceefe1c53e4	800
AdamGreen	0:6ceefe1c53e4	801	DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
AdamGreen	0:6ceefe1c53e4	802	FATFS fs, / File system object */
AdamGreen	0:6ceefe1c53e4	803	DWORD clst /* Cluster# to be converted */
AdamGreen	0:6ceefe1c53e4	804	)
AdamGreen	0:6ceefe1c53e4	805	{
AdamGreen	0:6ceefe1c53e4	806	clst -= 2;
AdamGreen	0:6ceefe1c53e4	807	if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
AdamGreen	0:6ceefe1c53e4	808	return clst * fs->csize + fs->database;
AdamGreen	0:6ceefe1c53e4	809	}
AdamGreen	0:6ceefe1c53e4	810
AdamGreen	0:6ceefe1c53e4	811
AdamGreen	0:6ceefe1c53e4	812
AdamGreen	0:6ceefe1c53e4	813
AdamGreen	0:6ceefe1c53e4	814	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	815	/* FAT access - Read value of a FAT entry */
AdamGreen	0:6ceefe1c53e4	816	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	817
AdamGreen	0:6ceefe1c53e4	818
AdamGreen	0:6ceefe1c53e4	819	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
AdamGreen	0:6ceefe1c53e4	820	FATFS fs, / File system object */
AdamGreen	0:6ceefe1c53e4	821	DWORD clst /* Cluster# to get the link information */
AdamGreen	0:6ceefe1c53e4	822	)
AdamGreen	0:6ceefe1c53e4	823	{
AdamGreen	0:6ceefe1c53e4	824	UINT wc, bc;
AdamGreen	0:6ceefe1c53e4	825	BYTE *p;
AdamGreen	0:6ceefe1c53e4	826
AdamGreen	0:6ceefe1c53e4	827
AdamGreen	0:6ceefe1c53e4	828	if (clst < 2 \|\| clst >= fs->n_fatent) /* Chack range */
AdamGreen	0:6ceefe1c53e4	829	return 1;
AdamGreen	0:6ceefe1c53e4	830
AdamGreen	0:6ceefe1c53e4	831	switch (fs->fs_type) {
AdamGreen	0:6ceefe1c53e4	832	case FS_FAT12 :
AdamGreen	0:6ceefe1c53e4	833	bc = (UINT)clst; bc += bc / 2;
AdamGreen	0:6ceefe1c53e4	834	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
AdamGreen	0:6ceefe1c53e4	835	wc = fs->win[bc % SS(fs)]; bc++;
AdamGreen	0:6ceefe1c53e4	836	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
AdamGreen	0:6ceefe1c53e4	837	wc \|= fs->win[bc % SS(fs)] << 8;
AdamGreen	0:6ceefe1c53e4	838	return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
AdamGreen	0:6ceefe1c53e4	839
AdamGreen	0:6ceefe1c53e4	840	case FS_FAT16 :
AdamGreen	0:6ceefe1c53e4	841	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
AdamGreen	0:6ceefe1c53e4	842	p = &fs->win[clst * 2 % SS(fs)];
AdamGreen	0:6ceefe1c53e4	843	return LD_WORD(p);
AdamGreen	0:6ceefe1c53e4	844
AdamGreen	0:6ceefe1c53e4	845	case FS_FAT32 :
AdamGreen	0:6ceefe1c53e4	846	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
AdamGreen	0:6ceefe1c53e4	847	p = &fs->win[clst * 4 % SS(fs)];
AdamGreen	0:6ceefe1c53e4	848	return LD_DWORD(p) & 0x0FFFFFFF;
AdamGreen	0:6ceefe1c53e4	849	}
AdamGreen	0:6ceefe1c53e4	850
AdamGreen	0:6ceefe1c53e4	851	return 0xFFFFFFFF; /* An error occurred at the disk I/O layer */
AdamGreen	0:6ceefe1c53e4	852	}
AdamGreen	0:6ceefe1c53e4	853
AdamGreen	0:6ceefe1c53e4	854
AdamGreen	0:6ceefe1c53e4	855
AdamGreen	0:6ceefe1c53e4	856
AdamGreen	0:6ceefe1c53e4	857	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	858	/* FAT access - Change value of a FAT entry */
AdamGreen	0:6ceefe1c53e4	859	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	860	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	861
AdamGreen	0:6ceefe1c53e4	862	FRESULT put_fat (
AdamGreen	0:6ceefe1c53e4	863	FATFS fs, / File system object */
AdamGreen	0:6ceefe1c53e4	864	DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
AdamGreen	0:6ceefe1c53e4	865	DWORD val /* New value to mark the cluster */
AdamGreen	0:6ceefe1c53e4	866	)
AdamGreen	0:6ceefe1c53e4	867	{
AdamGreen	0:6ceefe1c53e4	868	UINT bc;
AdamGreen	0:6ceefe1c53e4	869	BYTE *p;
AdamGreen	0:6ceefe1c53e4	870	FRESULT res;
AdamGreen	0:6ceefe1c53e4	871
AdamGreen	0:6ceefe1c53e4	872
AdamGreen	0:6ceefe1c53e4	873	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
AdamGreen	0:6ceefe1c53e4	874	res = FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	875
AdamGreen	0:6ceefe1c53e4	876	} else {
AdamGreen	0:6ceefe1c53e4	877	switch (fs->fs_type) {
AdamGreen	0:6ceefe1c53e4	878	case FS_FAT12 :
AdamGreen	0:6ceefe1c53e4	879	bc = clst; bc += bc / 2;
AdamGreen	0:6ceefe1c53e4	880	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
AdamGreen	0:6ceefe1c53e4	881	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	882	p = &fs->win[bc % SS(fs)];
AdamGreen	0:6ceefe1c53e4	883	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
AdamGreen	0:6ceefe1c53e4	884	bc++;
AdamGreen	0:6ceefe1c53e4	885	fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	886	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
AdamGreen	0:6ceefe1c53e4	887	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	888	p = &fs->win[bc % SS(fs)];
AdamGreen	0:6ceefe1c53e4	889	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
AdamGreen	0:6ceefe1c53e4	890	break;
AdamGreen	0:6ceefe1c53e4	891
AdamGreen	0:6ceefe1c53e4	892	case FS_FAT16 :
AdamGreen	0:6ceefe1c53e4	893	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
AdamGreen	0:6ceefe1c53e4	894	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	895	p = &fs->win[clst * 2 % SS(fs)];
AdamGreen	0:6ceefe1c53e4	896	ST_WORD(p, (WORD)val);
AdamGreen	0:6ceefe1c53e4	897	break;
AdamGreen	0:6ceefe1c53e4	898
AdamGreen	0:6ceefe1c53e4	899	case FS_FAT32 :
AdamGreen	0:6ceefe1c53e4	900	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
AdamGreen	0:6ceefe1c53e4	901	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	902	p = &fs->win[clst * 4 % SS(fs)];
AdamGreen	0:6ceefe1c53e4	903	val \|= LD_DWORD(p) & 0xF0000000;
AdamGreen	0:6ceefe1c53e4	904	ST_DWORD(p, val);
AdamGreen	0:6ceefe1c53e4	905	break;
AdamGreen	0:6ceefe1c53e4	906
AdamGreen	0:6ceefe1c53e4	907	default :
AdamGreen	0:6ceefe1c53e4	908	res = FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	909	}
AdamGreen	0:6ceefe1c53e4	910	fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	911	}
AdamGreen	0:6ceefe1c53e4	912
AdamGreen	0:6ceefe1c53e4	913	return res;
AdamGreen	0:6ceefe1c53e4	914	}
AdamGreen	0:6ceefe1c53e4	915	#endif /* !_FS_READONLY */
AdamGreen	0:6ceefe1c53e4	916
AdamGreen	0:6ceefe1c53e4	917
AdamGreen	0:6ceefe1c53e4	918
AdamGreen	0:6ceefe1c53e4	919
AdamGreen	0:6ceefe1c53e4	920	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	921	/* FAT handling - Remove a cluster chain */
AdamGreen	0:6ceefe1c53e4	922	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	923	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	924	static
AdamGreen	0:6ceefe1c53e4	925	FRESULT remove_chain (
AdamGreen	0:6ceefe1c53e4	926	FATFS fs, / File system object */
AdamGreen	0:6ceefe1c53e4	927	DWORD clst /* Cluster# to remove a chain from */
AdamGreen	0:6ceefe1c53e4	928	)
AdamGreen	0:6ceefe1c53e4	929	{
AdamGreen	0:6ceefe1c53e4	930	FRESULT res;
AdamGreen	0:6ceefe1c53e4	931	DWORD nxt;
AdamGreen	0:6ceefe1c53e4	932	#if _USE_ERASE
AdamGreen	0:6ceefe1c53e4	933	DWORD scl = clst, ecl = clst, resion[2];
AdamGreen	0:6ceefe1c53e4	934	#endif
AdamGreen	0:6ceefe1c53e4	935
AdamGreen	0:6ceefe1c53e4	936	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
AdamGreen	0:6ceefe1c53e4	937	res = FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	938
AdamGreen	0:6ceefe1c53e4	939	} else {
AdamGreen	0:6ceefe1c53e4	940	res = FR_OK;
AdamGreen	0:6ceefe1c53e4	941	while (clst < fs->n_fatent) { /* Not a last link? */
AdamGreen	0:6ceefe1c53e4	942	nxt = get_fat(fs, clst); /* Get cluster status */
AdamGreen	0:6ceefe1c53e4	943	if (nxt == 0) break; /* Empty cluster? */
AdamGreen	0:6ceefe1c53e4	944	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
AdamGreen	0:6ceefe1c53e4	945	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
AdamGreen	0:6ceefe1c53e4	946	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
AdamGreen	0:6ceefe1c53e4	947	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	948	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */
AdamGreen	0:6ceefe1c53e4	949	fs->free_clust++;
AdamGreen	0:6ceefe1c53e4	950	fs->fsi_flag = 1;
AdamGreen	0:6ceefe1c53e4	951	}
AdamGreen	0:6ceefe1c53e4	952	#if _USE_ERASE
AdamGreen	0:6ceefe1c53e4	953	if (ecl + 1 == nxt) { /* Next cluster is contiguous */
AdamGreen	0:6ceefe1c53e4	954	ecl = nxt;
AdamGreen	0:6ceefe1c53e4	955	} else { /* End of contiguous clusters */
AdamGreen	0:6ceefe1c53e4	956	resion[0] = clust2sect(fs, scl); /* Start sector */
AdamGreen	0:6ceefe1c53e4	957	resion[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
AdamGreen	0:6ceefe1c53e4	958	disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, resion); /* Erase the block */
AdamGreen	0:6ceefe1c53e4	959	scl = ecl = nxt;
AdamGreen	0:6ceefe1c53e4	960	}
AdamGreen	0:6ceefe1c53e4	961	#endif
AdamGreen	0:6ceefe1c53e4	962	clst = nxt; /* Next cluster */
AdamGreen	0:6ceefe1c53e4	963	}
AdamGreen	0:6ceefe1c53e4	964	}
AdamGreen	0:6ceefe1c53e4	965
AdamGreen	0:6ceefe1c53e4	966	return res;
AdamGreen	0:6ceefe1c53e4	967	}
AdamGreen	0:6ceefe1c53e4	968	#endif
AdamGreen	0:6ceefe1c53e4	969
AdamGreen	0:6ceefe1c53e4	970
AdamGreen	0:6ceefe1c53e4	971
AdamGreen	0:6ceefe1c53e4	972
AdamGreen	0:6ceefe1c53e4	973	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	974	/* FAT handling - Stretch or Create a cluster chain */
AdamGreen	0:6ceefe1c53e4	975	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	976	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	977	static
AdamGreen	0:6ceefe1c53e4	978	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
AdamGreen	0:6ceefe1c53e4	979	FATFS fs, / File system object */
AdamGreen	0:6ceefe1c53e4	980	DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
AdamGreen	0:6ceefe1c53e4	981	)
AdamGreen	0:6ceefe1c53e4	982	{
AdamGreen	0:6ceefe1c53e4	983	DWORD cs, ncl, scl;
AdamGreen	0:6ceefe1c53e4	984	FRESULT res;
AdamGreen	0:6ceefe1c53e4	985
AdamGreen	0:6ceefe1c53e4	986
AdamGreen	0:6ceefe1c53e4	987	if (clst == 0) { /* Create a new chain */
AdamGreen	0:6ceefe1c53e4	988	scl = fs->last_clust; /* Get suggested start point */
AdamGreen	0:6ceefe1c53e4	989	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
AdamGreen	0:6ceefe1c53e4	990	}
AdamGreen	0:6ceefe1c53e4	991	else { /* Stretch the current chain */
AdamGreen	0:6ceefe1c53e4	992	cs = get_fat(fs, clst); /* Check the cluster status */
AdamGreen	0:6ceefe1c53e4	993	if (cs < 2) return 1; /* It is an invalid cluster */
AdamGreen	0:6ceefe1c53e4	994	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
AdamGreen	0:6ceefe1c53e4	995	scl = clst;
AdamGreen	0:6ceefe1c53e4	996	}
AdamGreen	0:6ceefe1c53e4	997
AdamGreen	0:6ceefe1c53e4	998	ncl = scl; /* Start cluster */
AdamGreen	0:6ceefe1c53e4	999	for (;;) {
AdamGreen	0:6ceefe1c53e4	1000	ncl++; /* Next cluster */
AdamGreen	0:6ceefe1c53e4	1001	if (ncl >= fs->n_fatent) { /* Wrap around */
AdamGreen	0:6ceefe1c53e4	1002	ncl = 2;
AdamGreen	0:6ceefe1c53e4	1003	if (ncl > scl) return 0; /* No free cluster */
AdamGreen	0:6ceefe1c53e4	1004	}
AdamGreen	0:6ceefe1c53e4	1005	cs = get_fat(fs, ncl); /* Get the cluster status */
AdamGreen	0:6ceefe1c53e4	1006	if (cs == 0) break; /* Found a free cluster */
AdamGreen	0:6ceefe1c53e4	1007	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
AdamGreen	0:6ceefe1c53e4	1008	return cs;
AdamGreen	0:6ceefe1c53e4	1009	if (ncl == scl) return 0; /* No free cluster */
AdamGreen	0:6ceefe1c53e4	1010	}
AdamGreen	0:6ceefe1c53e4	1011
AdamGreen	0:6ceefe1c53e4	1012	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
AdamGreen	0:6ceefe1c53e4	1013	if (res == FR_OK && clst != 0) {
AdamGreen	0:6ceefe1c53e4	1014	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
AdamGreen	0:6ceefe1c53e4	1015	}
AdamGreen	0:6ceefe1c53e4	1016	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	1017	fs->last_clust = ncl; /* Update FSINFO */
AdamGreen	0:6ceefe1c53e4	1018	if (fs->free_clust != 0xFFFFFFFF) {
AdamGreen	0:6ceefe1c53e4	1019	fs->free_clust--;
AdamGreen	0:6ceefe1c53e4	1020	fs->fsi_flag = 1;
AdamGreen	0:6ceefe1c53e4	1021	}
AdamGreen	0:6ceefe1c53e4	1022	} else {
AdamGreen	0:6ceefe1c53e4	1023	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
AdamGreen	0:6ceefe1c53e4	1024	}
AdamGreen	0:6ceefe1c53e4	1025
AdamGreen	0:6ceefe1c53e4	1026	return ncl; /* Return new cluster number or error code */
AdamGreen	0:6ceefe1c53e4	1027	}
AdamGreen	0:6ceefe1c53e4	1028	#endif /* !_FS_READONLY */
AdamGreen	0:6ceefe1c53e4	1029
AdamGreen	0:6ceefe1c53e4	1030
AdamGreen	0:6ceefe1c53e4	1031
AdamGreen	0:6ceefe1c53e4	1032	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1033	/* FAT handling - Convert offset into cluster with link map table */
AdamGreen	0:6ceefe1c53e4	1034	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1035
AdamGreen	0:6ceefe1c53e4	1036	#if _USE_FASTSEEK
AdamGreen	0:6ceefe1c53e4	1037	static
AdamGreen	0:6ceefe1c53e4	1038	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
AdamGreen	0:6ceefe1c53e4	1039	FIL* fp, /* Pointer to the file object */
AdamGreen	0:6ceefe1c53e4	1040	DWORD ofs /* File offset to be converted to cluster# */
AdamGreen	0:6ceefe1c53e4	1041	)
AdamGreen	0:6ceefe1c53e4	1042	{
AdamGreen	0:6ceefe1c53e4	1043	DWORD cl, ncl, *tbl;
AdamGreen	0:6ceefe1c53e4	1044
AdamGreen	0:6ceefe1c53e4	1045
AdamGreen	0:6ceefe1c53e4	1046	tbl = fp->cltbl + 1; /* Top of CLMT */
AdamGreen	0:6ceefe1c53e4	1047	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
AdamGreen	0:6ceefe1c53e4	1048	for (;;) {
AdamGreen	0:6ceefe1c53e4	1049	ncl = tbl++; / Number of cluters in the fragment */
AdamGreen	0:6ceefe1c53e4	1050	if (!ncl) return 0; /* End of table? (error) */
AdamGreen	0:6ceefe1c53e4	1051	if (cl < ncl) break; /* In this fragment? */
AdamGreen	0:6ceefe1c53e4	1052	cl -= ncl; tbl++; /* Next fragment */
AdamGreen	0:6ceefe1c53e4	1053	}
AdamGreen	0:6ceefe1c53e4	1054	return cl + tbl; / Return the cluster number */
AdamGreen	0:6ceefe1c53e4	1055	}
AdamGreen	0:6ceefe1c53e4	1056	#endif /* _USE_FASTSEEK */
AdamGreen	0:6ceefe1c53e4	1057
AdamGreen	0:6ceefe1c53e4	1058
AdamGreen	0:6ceefe1c53e4	1059
AdamGreen	0:6ceefe1c53e4	1060	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1061	/* Directory handling - Set directory index */
AdamGreen	0:6ceefe1c53e4	1062	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1063
AdamGreen	0:6ceefe1c53e4	1064	static
AdamGreen	0:6ceefe1c53e4	1065	FRESULT dir_sdi (
AdamGreen	0:6ceefe1c53e4	1066	FATFS_DIR dj, / Pointer to directory object */
AdamGreen	0:6ceefe1c53e4	1067	WORD idx /* Directory index number */
AdamGreen	0:6ceefe1c53e4	1068	)
AdamGreen	0:6ceefe1c53e4	1069	{
AdamGreen	0:6ceefe1c53e4	1070	DWORD clst;
AdamGreen	0:6ceefe1c53e4	1071	WORD ic;
AdamGreen	0:6ceefe1c53e4	1072
AdamGreen	0:6ceefe1c53e4	1073
AdamGreen	0:6ceefe1c53e4	1074	dj->index = idx;
AdamGreen	0:6ceefe1c53e4	1075	clst = dj->sclust;
AdamGreen	0:6ceefe1c53e4	1076	if (clst == 1 \|\| clst >= dj->fs->n_fatent) /* Check start cluster range */
AdamGreen	0:6ceefe1c53e4	1077	return FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	1078	if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
AdamGreen	0:6ceefe1c53e4	1079	clst = dj->fs->dirbase;
AdamGreen	0:6ceefe1c53e4	1080
AdamGreen	0:6ceefe1c53e4	1081	if (clst == 0) { /* Static table (root-dir in FAT12/16) */
AdamGreen	0:6ceefe1c53e4	1082	dj->clust = clst;
AdamGreen	0:6ceefe1c53e4	1083	if (idx >= dj->fs->n_rootdir) /* Index is out of range */
AdamGreen	0:6ceefe1c53e4	1084	return FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	1085	dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
AdamGreen	0:6ceefe1c53e4	1086	}
AdamGreen	0:6ceefe1c53e4	1087	else { /* Dynamic table (sub-dirs or root-dir in FAT32) */
AdamGreen	0:6ceefe1c53e4	1088	ic = SS(dj->fs) / SZ_DIR * dj->fs->csize; /* Entries per cluster */
AdamGreen	0:6ceefe1c53e4	1089	while (idx >= ic) { /* Follow cluster chain */
AdamGreen	0:6ceefe1c53e4	1090	clst = get_fat(dj->fs, clst); /* Get next cluster */
AdamGreen	0:6ceefe1c53e4	1091	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
AdamGreen	0:6ceefe1c53e4	1092	if (clst < 2 \|\| clst >= dj->fs->n_fatent) /* Reached to end of table or int error */
AdamGreen	0:6ceefe1c53e4	1093	return FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	1094	idx -= ic;
AdamGreen	0:6ceefe1c53e4	1095	}
AdamGreen	0:6ceefe1c53e4	1096	dj->clust = clst;
AdamGreen	0:6ceefe1c53e4	1097	dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
AdamGreen	0:6ceefe1c53e4	1098	}
AdamGreen	0:6ceefe1c53e4	1099
AdamGreen	0:6ceefe1c53e4	1100	dj->dir = dj->fs->win + (idx % (SS(dj->fs) / SZ_DIR)) * SZ_DIR; /* Ptr to the entry in the sector */
AdamGreen	0:6ceefe1c53e4	1101
AdamGreen	0:6ceefe1c53e4	1102	return FR_OK; /* Seek succeeded */
AdamGreen	0:6ceefe1c53e4	1103	}
AdamGreen	0:6ceefe1c53e4	1104
AdamGreen	0:6ceefe1c53e4	1105
AdamGreen	0:6ceefe1c53e4	1106
AdamGreen	0:6ceefe1c53e4	1107
AdamGreen	0:6ceefe1c53e4	1108	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1109	/* Directory handling - Move directory index next */
AdamGreen	0:6ceefe1c53e4	1110	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1111
AdamGreen	0:6ceefe1c53e4	1112	static
AdamGreen	0:6ceefe1c53e4	1113	FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not stretch */
AdamGreen	0:6ceefe1c53e4	1114	FATFS_DIR dj, / Pointer to directory object */
AdamGreen	0:6ceefe1c53e4	1115	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
AdamGreen	0:6ceefe1c53e4	1116	)
AdamGreen	0:6ceefe1c53e4	1117	{
AdamGreen	0:6ceefe1c53e4	1118	DWORD clst;
AdamGreen	0:6ceefe1c53e4	1119	WORD i;
AdamGreen	0:6ceefe1c53e4	1120
AdamGreen	0:6ceefe1c53e4	1121
AdamGreen	0:6ceefe1c53e4	1122	stretch = stretch; /* To suppress warning on read-only cfg. */
AdamGreen	0:6ceefe1c53e4	1123	i = dj->index + 1;
AdamGreen	0:6ceefe1c53e4	1124	if (!i \|\| !dj->sect) /* Report EOT when index has reached 65535 */
AdamGreen	0:6ceefe1c53e4	1125	return FR_NO_FILE;
AdamGreen	0:6ceefe1c53e4	1126
AdamGreen	0:6ceefe1c53e4	1127	if (!(i % (SS(dj->fs) / SZ_DIR))) { /* Sector changed? */
AdamGreen	0:6ceefe1c53e4	1128	dj->sect++; /* Next sector */
AdamGreen	0:6ceefe1c53e4	1129
AdamGreen	0:6ceefe1c53e4	1130	if (dj->clust == 0) { /* Static table */
AdamGreen	0:6ceefe1c53e4	1131	if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */
AdamGreen	0:6ceefe1c53e4	1132	return FR_NO_FILE;
AdamGreen	0:6ceefe1c53e4	1133	}
AdamGreen	0:6ceefe1c53e4	1134	else { /* Dynamic table */
AdamGreen	0:6ceefe1c53e4	1135	if (((i / (SS(dj->fs) / SZ_DIR)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
AdamGreen	0:6ceefe1c53e4	1136	clst = get_fat(dj->fs, dj->clust); /* Get next cluster */
AdamGreen	0:6ceefe1c53e4	1137	if (clst <= 1) return FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	1138	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	1139	if (clst >= dj->fs->n_fatent) { /* When it reached end of dynamic table */
AdamGreen	0:6ceefe1c53e4	1140	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	1141	BYTE c;
AdamGreen	0:6ceefe1c53e4	1142	if (!stretch) return FR_NO_FILE; /* When do not stretch, report EOT */
AdamGreen	0:6ceefe1c53e4	1143	clst = create_chain(dj->fs, dj->clust); /* Stretch cluster chain */
AdamGreen	0:6ceefe1c53e4	1144	if (clst == 0) return FR_DENIED; /* No free cluster */
AdamGreen	0:6ceefe1c53e4	1145	if (clst == 1) return FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	1146	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	1147	/* Clean-up stretched table */
AdamGreen	0:6ceefe1c53e4	1148	if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */
AdamGreen	0:6ceefe1c53e4	1149	mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */
AdamGreen	0:6ceefe1c53e4	1150	dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */
AdamGreen	0:6ceefe1c53e4	1151	for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */
AdamGreen	0:6ceefe1c53e4	1152	dj->fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	1153	if (move_window(dj->fs, 0)) return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	1154	dj->fs->winsect++;
AdamGreen	0:6ceefe1c53e4	1155	}
AdamGreen	0:6ceefe1c53e4	1156	dj->fs->winsect -= c; /* Rewind window address */
AdamGreen	0:6ceefe1c53e4	1157	#else
AdamGreen	0:6ceefe1c53e4	1158	return FR_NO_FILE; /* Report EOT */
AdamGreen	0:6ceefe1c53e4	1159	#endif
AdamGreen	0:6ceefe1c53e4	1160	}
AdamGreen	0:6ceefe1c53e4	1161	dj->clust = clst; /* Initialize data for new cluster */
AdamGreen	0:6ceefe1c53e4	1162	dj->sect = clust2sect(dj->fs, clst);
AdamGreen	0:6ceefe1c53e4	1163	}
AdamGreen	0:6ceefe1c53e4	1164	}
AdamGreen	0:6ceefe1c53e4	1165	}
AdamGreen	0:6ceefe1c53e4	1166
AdamGreen	0:6ceefe1c53e4	1167	dj->index = i;
AdamGreen	0:6ceefe1c53e4	1168	dj->dir = dj->fs->win + (i % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;
AdamGreen	0:6ceefe1c53e4	1169
AdamGreen	0:6ceefe1c53e4	1170	return FR_OK;
AdamGreen	0:6ceefe1c53e4	1171	}
AdamGreen	0:6ceefe1c53e4	1172
AdamGreen	0:6ceefe1c53e4	1173
AdamGreen	0:6ceefe1c53e4	1174
AdamGreen	0:6ceefe1c53e4	1175
AdamGreen	0:6ceefe1c53e4	1176	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1177	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
AdamGreen	0:6ceefe1c53e4	1178	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1179	#if _USE_LFN
AdamGreen	0:6ceefe1c53e4	1180	static
AdamGreen	0:6ceefe1c53e4	1181	const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN chars in the directory entry */
AdamGreen	0:6ceefe1c53e4	1182
AdamGreen	0:6ceefe1c53e4	1183
AdamGreen	0:6ceefe1c53e4	1184	static
AdamGreen	0:6ceefe1c53e4	1185	int cmp_lfn ( /* 1:Matched, 0:Not matched */
AdamGreen	0:6ceefe1c53e4	1186	WCHAR lfnbuf, / Pointer to the LFN to be compared */
AdamGreen	0:6ceefe1c53e4	1187	BYTE dir / Pointer to the directory entry containing a part of LFN */
AdamGreen	0:6ceefe1c53e4	1188	)
AdamGreen	0:6ceefe1c53e4	1189	{
AdamGreen	0:6ceefe1c53e4	1190	UINT i, s;
AdamGreen	0:6ceefe1c53e4	1191	WCHAR wc, uc;
AdamGreen	0:6ceefe1c53e4	1192
AdamGreen	0:6ceefe1c53e4	1193
AdamGreen	0:6ceefe1c53e4	1194	i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
AdamGreen	0:6ceefe1c53e4	1195	s = 0; wc = 1;
AdamGreen	0:6ceefe1c53e4	1196	do {
AdamGreen	0:6ceefe1c53e4	1197	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
AdamGreen	0:6ceefe1c53e4	1198	if (wc) { /* Last char has not been processed */
AdamGreen	0:6ceefe1c53e4	1199	wc = ff_wtoupper(uc); /* Convert it to upper case */
AdamGreen	0:6ceefe1c53e4	1200	if (i >= _MAX_LFN \|\| wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
AdamGreen	0:6ceefe1c53e4	1201	return 0; /* Not matched */
AdamGreen	0:6ceefe1c53e4	1202	} else {
AdamGreen	0:6ceefe1c53e4	1203	if (uc != 0xFFFF) return 0; /* Check filler */
AdamGreen	0:6ceefe1c53e4	1204	}
AdamGreen	0:6ceefe1c53e4	1205	} while (++s < 13); /* Repeat until all chars in the entry are checked */
AdamGreen	0:6ceefe1c53e4	1206
AdamGreen	0:6ceefe1c53e4	1207	if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) /* Last segment matched but different length */
AdamGreen	0:6ceefe1c53e4	1208	return 0;
AdamGreen	0:6ceefe1c53e4	1209
AdamGreen	0:6ceefe1c53e4	1210	return 1; /* The part of LFN matched */
AdamGreen	0:6ceefe1c53e4	1211	}
AdamGreen	0:6ceefe1c53e4	1212
AdamGreen	0:6ceefe1c53e4	1213
AdamGreen	0:6ceefe1c53e4	1214
AdamGreen	0:6ceefe1c53e4	1215	static
AdamGreen	0:6ceefe1c53e4	1216	int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
AdamGreen	0:6ceefe1c53e4	1217	WCHAR lfnbuf, / Pointer to the Unicode-LFN buffer */
AdamGreen	0:6ceefe1c53e4	1218	BYTE dir / Pointer to the directory entry */
AdamGreen	0:6ceefe1c53e4	1219	)
AdamGreen	0:6ceefe1c53e4	1220	{
AdamGreen	0:6ceefe1c53e4	1221	UINT i, s;
AdamGreen	0:6ceefe1c53e4	1222	WCHAR wc, uc;
AdamGreen	0:6ceefe1c53e4	1223
AdamGreen	0:6ceefe1c53e4	1224
AdamGreen	0:6ceefe1c53e4	1225	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
AdamGreen	0:6ceefe1c53e4	1226
AdamGreen	0:6ceefe1c53e4	1227	s = 0; wc = 1;
AdamGreen	0:6ceefe1c53e4	1228	do {
AdamGreen	0:6ceefe1c53e4	1229	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
AdamGreen	0:6ceefe1c53e4	1230	if (wc) { /* Last char has not been processed */
AdamGreen	0:6ceefe1c53e4	1231	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
AdamGreen	0:6ceefe1c53e4	1232	lfnbuf[i++] = wc = uc; /* Store it */
AdamGreen	0:6ceefe1c53e4	1233	} else {
AdamGreen	0:6ceefe1c53e4	1234	if (uc != 0xFFFF) return 0; /* Check filler */
AdamGreen	0:6ceefe1c53e4	1235	}
AdamGreen	0:6ceefe1c53e4	1236	} while (++s < 13); /* Read all character in the entry */
AdamGreen	0:6ceefe1c53e4	1237
AdamGreen	0:6ceefe1c53e4	1238	if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
AdamGreen	0:6ceefe1c53e4	1239	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
AdamGreen	0:6ceefe1c53e4	1240	lfnbuf[i] = 0;
AdamGreen	0:6ceefe1c53e4	1241	}
AdamGreen	0:6ceefe1c53e4	1242
AdamGreen	0:6ceefe1c53e4	1243	return 1;
AdamGreen	0:6ceefe1c53e4	1244	}
AdamGreen	0:6ceefe1c53e4	1245
AdamGreen	0:6ceefe1c53e4	1246
AdamGreen	0:6ceefe1c53e4	1247	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	1248	static
AdamGreen	0:6ceefe1c53e4	1249	void fit_lfn (
AdamGreen	0:6ceefe1c53e4	1250	const WCHAR lfnbuf, / Pointer to the LFN buffer */
AdamGreen	0:6ceefe1c53e4	1251	BYTE dir, / Pointer to the directory entry */
AdamGreen	0:6ceefe1c53e4	1252	BYTE ord, /* LFN order (1-20) */
AdamGreen	0:6ceefe1c53e4	1253	BYTE sum /* SFN sum */
AdamGreen	0:6ceefe1c53e4	1254	)
AdamGreen	0:6ceefe1c53e4	1255	{
AdamGreen	0:6ceefe1c53e4	1256	UINT i, s;
AdamGreen	0:6ceefe1c53e4	1257	WCHAR wc;
AdamGreen	0:6ceefe1c53e4	1258
AdamGreen	0:6ceefe1c53e4	1259
AdamGreen	0:6ceefe1c53e4	1260	dir[LDIR_Chksum] = sum; /* Set check sum */
AdamGreen	0:6ceefe1c53e4	1261	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
AdamGreen	0:6ceefe1c53e4	1262	dir[LDIR_Type] = 0;
AdamGreen	0:6ceefe1c53e4	1263	ST_WORD(dir+LDIR_FstClusLO, 0);
AdamGreen	0:6ceefe1c53e4	1264
AdamGreen	0:6ceefe1c53e4	1265	i = (ord - 1) * 13; /* Get offset in the LFN buffer */
AdamGreen	0:6ceefe1c53e4	1266	s = wc = 0;
AdamGreen	0:6ceefe1c53e4	1267	do {
AdamGreen	0:6ceefe1c53e4	1268	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */
AdamGreen	0:6ceefe1c53e4	1269	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
AdamGreen	0:6ceefe1c53e4	1270	if (!wc) wc = 0xFFFF; /* Padding chars following last char */
AdamGreen	0:6ceefe1c53e4	1271	} while (++s < 13);
AdamGreen	0:6ceefe1c53e4	1272	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLE; /* Bottom LFN part is the start of LFN sequence */
AdamGreen	0:6ceefe1c53e4	1273	dir[LDIR_Ord] = ord; /* Set the LFN order */
AdamGreen	0:6ceefe1c53e4	1274	}
AdamGreen	0:6ceefe1c53e4	1275
AdamGreen	0:6ceefe1c53e4	1276	#endif
AdamGreen	0:6ceefe1c53e4	1277	#endif
AdamGreen	0:6ceefe1c53e4	1278
AdamGreen	0:6ceefe1c53e4	1279
AdamGreen	0:6ceefe1c53e4	1280
AdamGreen	0:6ceefe1c53e4	1281	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1282	/* Create numbered name */
AdamGreen	0:6ceefe1c53e4	1283	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1284	#if _USE_LFN
AdamGreen	0:6ceefe1c53e4	1285	void gen_numname (
AdamGreen	0:6ceefe1c53e4	1286	BYTE dst, / Pointer to generated SFN */
AdamGreen	0:6ceefe1c53e4	1287	const BYTE src, / Pointer to source SFN to be modified */
AdamGreen	0:6ceefe1c53e4	1288	const WCHAR lfn, / Pointer to LFN */
AdamGreen	0:6ceefe1c53e4	1289	WORD seq /* Sequence number */
AdamGreen	0:6ceefe1c53e4	1290	)
AdamGreen	0:6ceefe1c53e4	1291	{
AdamGreen	0:6ceefe1c53e4	1292	BYTE ns[8], c;
AdamGreen	0:6ceefe1c53e4	1293	UINT i, j;
AdamGreen	0:6ceefe1c53e4	1294
AdamGreen	0:6ceefe1c53e4	1295
AdamGreen	0:6ceefe1c53e4	1296	mem_cpy(dst, src, 11);
AdamGreen	0:6ceefe1c53e4	1297
AdamGreen	0:6ceefe1c53e4	1298	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
AdamGreen	0:6ceefe1c53e4	1299	do seq = (seq >> 1) + (seq << 15) + (WORD)lfn++; while (lfn);
AdamGreen	0:6ceefe1c53e4	1300	}
AdamGreen	0:6ceefe1c53e4	1301
AdamGreen	0:6ceefe1c53e4	1302	/* itoa (hexdecimal) */
AdamGreen	0:6ceefe1c53e4	1303	i = 7;
AdamGreen	0:6ceefe1c53e4	1304	do {
AdamGreen	0:6ceefe1c53e4	1305	c = (seq % 16) + '0';
AdamGreen	0:6ceefe1c53e4	1306	if (c > '9') c += 7;
AdamGreen	0:6ceefe1c53e4	1307	ns[i--] = c;
AdamGreen	0:6ceefe1c53e4	1308	seq /= 16;
AdamGreen	0:6ceefe1c53e4	1309	} while (seq);
AdamGreen	0:6ceefe1c53e4	1310	ns[i] = '~';
AdamGreen	0:6ceefe1c53e4	1311
AdamGreen	0:6ceefe1c53e4	1312	/* Append the number */
AdamGreen	0:6ceefe1c53e4	1313	for (j = 0; j < i && dst[j] != ' '; j++) {
AdamGreen	0:6ceefe1c53e4	1314	if (IsDBCS1(dst[j])) {
AdamGreen	0:6ceefe1c53e4	1315	if (j == i - 1) break;
AdamGreen	0:6ceefe1c53e4	1316	j++;
AdamGreen	0:6ceefe1c53e4	1317	}
AdamGreen	0:6ceefe1c53e4	1318	}
AdamGreen	0:6ceefe1c53e4	1319	do {
AdamGreen	0:6ceefe1c53e4	1320	dst[j++] = (i < 8) ? ns[i++] : ' ';
AdamGreen	0:6ceefe1c53e4	1321	} while (j < 8);
AdamGreen	0:6ceefe1c53e4	1322	}
AdamGreen	0:6ceefe1c53e4	1323	#endif
AdamGreen	0:6ceefe1c53e4	1324
AdamGreen	0:6ceefe1c53e4	1325
AdamGreen	0:6ceefe1c53e4	1326
AdamGreen	0:6ceefe1c53e4	1327
AdamGreen	0:6ceefe1c53e4	1328	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1329	/* Calculate sum of an SFN */
AdamGreen	0:6ceefe1c53e4	1330	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1331	#if _USE_LFN
AdamGreen	0:6ceefe1c53e4	1332	static
AdamGreen	0:6ceefe1c53e4	1333	BYTE sum_sfn (
AdamGreen	0:6ceefe1c53e4	1334	const BYTE dir / Ptr to directory entry */
AdamGreen	0:6ceefe1c53e4	1335	)
AdamGreen	0:6ceefe1c53e4	1336	{
AdamGreen	0:6ceefe1c53e4	1337	BYTE sum = 0;
AdamGreen	0:6ceefe1c53e4	1338	UINT n = 11;
AdamGreen	0:6ceefe1c53e4	1339
AdamGreen	0:6ceefe1c53e4	1340	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
AdamGreen	0:6ceefe1c53e4	1341	return sum;
AdamGreen	0:6ceefe1c53e4	1342	}
AdamGreen	0:6ceefe1c53e4	1343	#endif
AdamGreen	0:6ceefe1c53e4	1344
AdamGreen	0:6ceefe1c53e4	1345
AdamGreen	0:6ceefe1c53e4	1346
AdamGreen	0:6ceefe1c53e4	1347
AdamGreen	0:6ceefe1c53e4	1348	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1349	/* Directory handling - Find an object in the directory */
AdamGreen	0:6ceefe1c53e4	1350	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1351
AdamGreen	0:6ceefe1c53e4	1352	static
AdamGreen	0:6ceefe1c53e4	1353	FRESULT dir_find (
AdamGreen	0:6ceefe1c53e4	1354	FATFS_DIR dj / Pointer to the directory object linked to the file name */
AdamGreen	0:6ceefe1c53e4	1355	)
AdamGreen	0:6ceefe1c53e4	1356	{
AdamGreen	0:6ceefe1c53e4	1357	FRESULT res;
AdamGreen	0:6ceefe1c53e4	1358	BYTE c, *dir;
AdamGreen	0:6ceefe1c53e4	1359	#if _USE_LFN
AdamGreen	0:6ceefe1c53e4	1360	BYTE a, ord, sum;
AdamGreen	0:6ceefe1c53e4	1361	#endif
AdamGreen	0:6ceefe1c53e4	1362
AdamGreen	0:6ceefe1c53e4	1363	res = dir_sdi(dj, 0); /* Rewind directory object */
AdamGreen	0:6ceefe1c53e4	1364	if (res != FR_OK) return res;
AdamGreen	0:6ceefe1c53e4	1365
AdamGreen	0:6ceefe1c53e4	1366	#if _USE_LFN
AdamGreen	0:6ceefe1c53e4	1367	ord = sum = 0xFF;
AdamGreen	0:6ceefe1c53e4	1368	#endif
AdamGreen	0:6ceefe1c53e4	1369	do {
AdamGreen	0:6ceefe1c53e4	1370	res = move_window(dj->fs, dj->sect);
AdamGreen	0:6ceefe1c53e4	1371	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	1372	dir = dj->dir; /* Ptr to the directory entry of current index */
AdamGreen	0:6ceefe1c53e4	1373	c = dir[DIR_Name];
AdamGreen	0:6ceefe1c53e4	1374	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
AdamGreen	0:6ceefe1c53e4	1375	#if _USE_LFN /* LFN configuration */
AdamGreen	0:6ceefe1c53e4	1376	a = dir[DIR_Attr] & AM_MASK;
AdamGreen	0:6ceefe1c53e4	1377	if (c == DDE \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
AdamGreen	0:6ceefe1c53e4	1378	ord = 0xFF;
AdamGreen	0:6ceefe1c53e4	1379	} else {
AdamGreen	0:6ceefe1c53e4	1380	if (a == AM_LFN) { /* An LFN entry is found */
AdamGreen	0:6ceefe1c53e4	1381	if (dj->lfn) {
AdamGreen	0:6ceefe1c53e4	1382	if (c & LLE) { /* Is it start of LFN sequence? */
AdamGreen	0:6ceefe1c53e4	1383	sum = dir[LDIR_Chksum];
AdamGreen	0:6ceefe1c53e4	1384	c &= ~LLE; ord = c; /* LFN start order */
AdamGreen	0:6ceefe1c53e4	1385	dj->lfn_idx = dj->index;
AdamGreen	0:6ceefe1c53e4	1386	}
AdamGreen	0:6ceefe1c53e4	1387	/* Check validity of the LFN entry and compare it with given name */
AdamGreen	0:6ceefe1c53e4	1388	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
AdamGreen	0:6ceefe1c53e4	1389	}
AdamGreen	0:6ceefe1c53e4	1390	} else { /* An SFN entry is found */
AdamGreen	0:6ceefe1c53e4	1391	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
AdamGreen	0:6ceefe1c53e4	1392	ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */
AdamGreen	0:6ceefe1c53e4	1393	if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */
AdamGreen	0:6ceefe1c53e4	1394	}
AdamGreen	0:6ceefe1c53e4	1395	}
AdamGreen	0:6ceefe1c53e4	1396	#else /* Non LFN configuration */
AdamGreen	0:6ceefe1c53e4	1397	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
AdamGreen	0:6ceefe1c53e4	1398	break;
AdamGreen	0:6ceefe1c53e4	1399	#endif
AdamGreen	0:6ceefe1c53e4	1400	res = dir_next(dj, 0); /* Next entry */
AdamGreen	0:6ceefe1c53e4	1401	} while (res == FR_OK);
AdamGreen	0:6ceefe1c53e4	1402
AdamGreen	0:6ceefe1c53e4	1403	return res;
AdamGreen	0:6ceefe1c53e4	1404	}
AdamGreen	0:6ceefe1c53e4	1405
AdamGreen	0:6ceefe1c53e4	1406
AdamGreen	0:6ceefe1c53e4	1407
AdamGreen	0:6ceefe1c53e4	1408
AdamGreen	0:6ceefe1c53e4	1409	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1410	/* Read an object from the directory */
AdamGreen	0:6ceefe1c53e4	1411	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1412	#if _FS_MINIMIZE <= 1
AdamGreen	0:6ceefe1c53e4	1413	static
AdamGreen	0:6ceefe1c53e4	1414	FRESULT dir_read (
AdamGreen	0:6ceefe1c53e4	1415	FATFS_DIR dj / Pointer to the directory object that pointing the entry to be read */
AdamGreen	0:6ceefe1c53e4	1416	)
AdamGreen	0:6ceefe1c53e4	1417	{
AdamGreen	0:6ceefe1c53e4	1418	FRESULT res;
AdamGreen	0:6ceefe1c53e4	1419	BYTE c, *dir;
AdamGreen	0:6ceefe1c53e4	1420	#if _USE_LFN
AdamGreen	0:6ceefe1c53e4	1421	BYTE a, ord = 0xFF, sum = 0xFF;
AdamGreen	0:6ceefe1c53e4	1422	#endif
AdamGreen	0:6ceefe1c53e4	1423
AdamGreen	0:6ceefe1c53e4	1424	res = FR_NO_FILE;
AdamGreen	0:6ceefe1c53e4	1425	while (dj->sect) {
AdamGreen	0:6ceefe1c53e4	1426	res = move_window(dj->fs, dj->sect);
AdamGreen	0:6ceefe1c53e4	1427	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	1428	dir = dj->dir; /* Ptr to the directory entry of current index */
AdamGreen	0:6ceefe1c53e4	1429	c = dir[DIR_Name];
AdamGreen	0:6ceefe1c53e4	1430	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
AdamGreen	0:6ceefe1c53e4	1431	#if _USE_LFN /* LFN configuration */
AdamGreen	0:6ceefe1c53e4	1432	a = dir[DIR_Attr] & AM_MASK;
AdamGreen	0:6ceefe1c53e4	1433	if (c == DDE \|\| (!_FS_RPATH && c == '.') \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
AdamGreen	0:6ceefe1c53e4	1434	ord = 0xFF;
AdamGreen	0:6ceefe1c53e4	1435	} else {
AdamGreen	0:6ceefe1c53e4	1436	if (a == AM_LFN) { /* An LFN entry is found */
AdamGreen	0:6ceefe1c53e4	1437	if (c & LLE) { /* Is it start of LFN sequence? */
AdamGreen	0:6ceefe1c53e4	1438	sum = dir[LDIR_Chksum];
AdamGreen	0:6ceefe1c53e4	1439	c &= ~LLE; ord = c;
AdamGreen	0:6ceefe1c53e4	1440	dj->lfn_idx = dj->index;
AdamGreen	0:6ceefe1c53e4	1441	}
AdamGreen	0:6ceefe1c53e4	1442	/* Check LFN validity and capture it */
AdamGreen	0:6ceefe1c53e4	1443	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
AdamGreen	0:6ceefe1c53e4	1444	} else { /* An SFN entry is found */
AdamGreen	0:6ceefe1c53e4	1445	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
AdamGreen	0:6ceefe1c53e4	1446	dj->lfn_idx = 0xFFFF; /* It has no LFN. */
AdamGreen	0:6ceefe1c53e4	1447	break;
AdamGreen	0:6ceefe1c53e4	1448	}
AdamGreen	0:6ceefe1c53e4	1449	}
AdamGreen	0:6ceefe1c53e4	1450	#else /* Non LFN configuration */
AdamGreen	0:6ceefe1c53e4	1451	if (c != DDE && (_FS_RPATH \|\| c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
AdamGreen	0:6ceefe1c53e4	1452	break;
AdamGreen	0:6ceefe1c53e4	1453	#endif
AdamGreen	0:6ceefe1c53e4	1454	res = dir_next(dj, 0); /* Next entry */
AdamGreen	0:6ceefe1c53e4	1455	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	1456	}
AdamGreen	0:6ceefe1c53e4	1457
AdamGreen	0:6ceefe1c53e4	1458	if (res != FR_OK) dj->sect = 0;
AdamGreen	0:6ceefe1c53e4	1459
AdamGreen	0:6ceefe1c53e4	1460	return res;
AdamGreen	0:6ceefe1c53e4	1461	}
AdamGreen	0:6ceefe1c53e4	1462	#endif
AdamGreen	0:6ceefe1c53e4	1463
AdamGreen	0:6ceefe1c53e4	1464
AdamGreen	0:6ceefe1c53e4	1465
AdamGreen	0:6ceefe1c53e4	1466	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1467	/* Register an object to the directory */
AdamGreen	0:6ceefe1c53e4	1468	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1469	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	1470	static
AdamGreen	0:6ceefe1c53e4	1471	FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
AdamGreen	0:6ceefe1c53e4	1472	FATFS_DIR dj / Target directory with object name to be created */
AdamGreen	0:6ceefe1c53e4	1473	)
AdamGreen	0:6ceefe1c53e4	1474	{
AdamGreen	0:6ceefe1c53e4	1475	FRESULT res;
AdamGreen	0:6ceefe1c53e4	1476	BYTE c, *dir;
AdamGreen	0:6ceefe1c53e4	1477	#if _USE_LFN /* LFN configuration */
AdamGreen	0:6ceefe1c53e4	1478	WORD n, ne, is;
AdamGreen	0:6ceefe1c53e4	1479	BYTE sn[12], *fn, sum;
AdamGreen	0:6ceefe1c53e4	1480	WCHAR *lfn;
AdamGreen	0:6ceefe1c53e4	1481
AdamGreen	0:6ceefe1c53e4	1482
AdamGreen	0:6ceefe1c53e4	1483	fn = dj->fn; lfn = dj->lfn;
AdamGreen	0:6ceefe1c53e4	1484	mem_cpy(sn, fn, 12);
AdamGreen	0:6ceefe1c53e4	1485
AdamGreen	0:6ceefe1c53e4	1486	if (_FS_RPATH && (sn[NS] & NS_DOT)) /* Cannot create dot entry */
AdamGreen	0:6ceefe1c53e4	1487	return FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	1488
AdamGreen	0:6ceefe1c53e4	1489	if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
AdamGreen	0:6ceefe1c53e4	1490	fn[NS] = 0; dj->lfn = 0; /* Find only SFN */
AdamGreen	0:6ceefe1c53e4	1491	for (n = 1; n < 100; n++) {
AdamGreen	0:6ceefe1c53e4	1492	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
AdamGreen	0:6ceefe1c53e4	1493	res = dir_find(dj); /* Check if the name collides with existing SFN */
AdamGreen	0:6ceefe1c53e4	1494	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	1495	}
AdamGreen	0:6ceefe1c53e4	1496	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
AdamGreen	0:6ceefe1c53e4	1497	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
AdamGreen	0:6ceefe1c53e4	1498	fn[NS] = sn[NS]; dj->lfn = lfn;
AdamGreen	0:6ceefe1c53e4	1499	}
AdamGreen	0:6ceefe1c53e4	1500
AdamGreen	0:6ceefe1c53e4	1501	if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve an SFN + LFN entries. */
AdamGreen	0:6ceefe1c53e4	1502	for (ne = 0; lfn[ne]; ne++) ;
AdamGreen	0:6ceefe1c53e4	1503	ne = (ne + 25) / 13;
AdamGreen	0:6ceefe1c53e4	1504	} else { /* Otherwise reserve only an SFN entry. */
AdamGreen	0:6ceefe1c53e4	1505	ne = 1;
AdamGreen	0:6ceefe1c53e4	1506	}
AdamGreen	0:6ceefe1c53e4	1507
AdamGreen	0:6ceefe1c53e4	1508	/* Reserve contiguous entries */
AdamGreen	0:6ceefe1c53e4	1509	res = dir_sdi(dj, 0);
AdamGreen	0:6ceefe1c53e4	1510	if (res != FR_OK) return res;
AdamGreen	0:6ceefe1c53e4	1511	n = is = 0;
AdamGreen	0:6ceefe1c53e4	1512	do {
AdamGreen	0:6ceefe1c53e4	1513	res = move_window(dj->fs, dj->sect);
AdamGreen	0:6ceefe1c53e4	1514	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	1515	c = dj->dir; / Check the entry status */
AdamGreen	0:6ceefe1c53e4	1516	if (c == DDE \|\| c == 0) { /* Is it a blank entry? */
AdamGreen	0:6ceefe1c53e4	1517	if (n == 0) is = dj->index; /* First index of the contiguous entry */
AdamGreen	0:6ceefe1c53e4	1518	if (++n == ne) break; /* A contiguous entry that required count is found */
AdamGreen	0:6ceefe1c53e4	1519	} else {
AdamGreen	0:6ceefe1c53e4	1520	n = 0; /* Not a blank entry. Restart to search */
AdamGreen	0:6ceefe1c53e4	1521	}
AdamGreen	0:6ceefe1c53e4	1522	res = dir_next(dj, 1); /* Next entry with table stretch */
AdamGreen	0:6ceefe1c53e4	1523	} while (res == FR_OK);
AdamGreen	0:6ceefe1c53e4	1524
AdamGreen	0:6ceefe1c53e4	1525	if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */
AdamGreen	0:6ceefe1c53e4	1526	res = dir_sdi(dj, is);
AdamGreen	0:6ceefe1c53e4	1527	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	1528	sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */
AdamGreen	0:6ceefe1c53e4	1529	ne--;
AdamGreen	0:6ceefe1c53e4	1530	do { /* Store LFN entries in bottom first */
AdamGreen	0:6ceefe1c53e4	1531	res = move_window(dj->fs, dj->sect);
AdamGreen	0:6ceefe1c53e4	1532	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	1533	fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
AdamGreen	0:6ceefe1c53e4	1534	dj->fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	1535	res = dir_next(dj, 0); /* Next entry */
AdamGreen	0:6ceefe1c53e4	1536	} while (res == FR_OK && --ne);
AdamGreen	0:6ceefe1c53e4	1537	}
AdamGreen	0:6ceefe1c53e4	1538	}
AdamGreen	0:6ceefe1c53e4	1539
AdamGreen	0:6ceefe1c53e4	1540	#else /* Non LFN configuration */
AdamGreen	0:6ceefe1c53e4	1541	res = dir_sdi(dj, 0);
AdamGreen	0:6ceefe1c53e4	1542	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	1543	do { /* Find a blank entry for the SFN */
AdamGreen	0:6ceefe1c53e4	1544	res = move_window(dj->fs, dj->sect);
AdamGreen	0:6ceefe1c53e4	1545	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	1546	c = *dj->dir;
AdamGreen	0:6ceefe1c53e4	1547	if (c == DDE \|\| c == 0) break; /* Is it a blank entry? */
AdamGreen	0:6ceefe1c53e4	1548	res = dir_next(dj, 1); /* Next entry with table stretch */
AdamGreen	0:6ceefe1c53e4	1549	} while (res == FR_OK);
AdamGreen	0:6ceefe1c53e4	1550	}
AdamGreen	0:6ceefe1c53e4	1551	#endif
AdamGreen	0:6ceefe1c53e4	1552
AdamGreen	0:6ceefe1c53e4	1553	if (res == FR_OK) { /* Initialize the SFN entry */
AdamGreen	0:6ceefe1c53e4	1554	res = move_window(dj->fs, dj->sect);
AdamGreen	0:6ceefe1c53e4	1555	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	1556	dir = dj->dir;
AdamGreen	0:6ceefe1c53e4	1557	mem_set(dir, 0, SZ_DIR); /* Clean the entry */
AdamGreen	0:6ceefe1c53e4	1558	mem_cpy(dir, dj->fn, 11); /* Put SFN */
AdamGreen	0:6ceefe1c53e4	1559	#if _USE_LFN
AdamGreen	0:6ceefe1c53e4	1560	dir[DIR_NTres] = (dj->fn+NS) & (NS_BODY \| NS_EXT); / Put NT flag */
AdamGreen	0:6ceefe1c53e4	1561	#endif
AdamGreen	0:6ceefe1c53e4	1562	dj->fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	1563	}
AdamGreen	0:6ceefe1c53e4	1564	}
AdamGreen	0:6ceefe1c53e4	1565
AdamGreen	0:6ceefe1c53e4	1566	return res;
AdamGreen	0:6ceefe1c53e4	1567	}
AdamGreen	0:6ceefe1c53e4	1568	#endif /* !_FS_READONLY */
AdamGreen	0:6ceefe1c53e4	1569
AdamGreen	0:6ceefe1c53e4	1570
AdamGreen	0:6ceefe1c53e4	1571
AdamGreen	0:6ceefe1c53e4	1572
AdamGreen	0:6ceefe1c53e4	1573	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1574	/* Remove an object from the directory */
AdamGreen	0:6ceefe1c53e4	1575	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1576	#if !_FS_READONLY && !_FS_MINIMIZE
AdamGreen	0:6ceefe1c53e4	1577	static
AdamGreen	0:6ceefe1c53e4	1578	FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
AdamGreen	0:6ceefe1c53e4	1579	FATFS_DIR dj / Directory object pointing the entry to be removed */
AdamGreen	0:6ceefe1c53e4	1580	)
AdamGreen	0:6ceefe1c53e4	1581	{
AdamGreen	0:6ceefe1c53e4	1582	FRESULT res;
AdamGreen	0:6ceefe1c53e4	1583	#if _USE_LFN /* LFN configuration */
AdamGreen	0:6ceefe1c53e4	1584	WORD i;
AdamGreen	0:6ceefe1c53e4	1585
AdamGreen	0:6ceefe1c53e4	1586	i = dj->index; /* SFN index */
AdamGreen	0:6ceefe1c53e4	1587	res = dir_sdi(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */
AdamGreen	0:6ceefe1c53e4	1588	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	1589	do {
AdamGreen	0:6ceefe1c53e4	1590	res = move_window(dj->fs, dj->sect);
AdamGreen	0:6ceefe1c53e4	1591	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	1592	dj->dir = DDE; / Mark the entry "deleted" */
AdamGreen	0:6ceefe1c53e4	1593	dj->fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	1594	if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
AdamGreen	0:6ceefe1c53e4	1595	res = dir_next(dj, 0); /* Next entry */
AdamGreen	0:6ceefe1c53e4	1596	} while (res == FR_OK);
AdamGreen	0:6ceefe1c53e4	1597	if (res == FR_NO_FILE) res = FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	1598	}
AdamGreen	0:6ceefe1c53e4	1599
AdamGreen	0:6ceefe1c53e4	1600	#else /* Non LFN configuration */
AdamGreen	0:6ceefe1c53e4	1601	res = dir_sdi(dj, dj->index);
AdamGreen	0:6ceefe1c53e4	1602	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	1603	res = move_window(dj->fs, dj->sect);
AdamGreen	0:6ceefe1c53e4	1604	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	1605	dj->dir = DDE; / Mark the entry "deleted" */
AdamGreen	0:6ceefe1c53e4	1606	dj->fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	1607	}
AdamGreen	0:6ceefe1c53e4	1608	}
AdamGreen	0:6ceefe1c53e4	1609	#endif
AdamGreen	0:6ceefe1c53e4	1610
AdamGreen	0:6ceefe1c53e4	1611	return res;
AdamGreen	0:6ceefe1c53e4	1612	}
AdamGreen	0:6ceefe1c53e4	1613	#endif /* !_FS_READONLY */
AdamGreen	0:6ceefe1c53e4	1614
AdamGreen	0:6ceefe1c53e4	1615
AdamGreen	0:6ceefe1c53e4	1616
AdamGreen	0:6ceefe1c53e4	1617
AdamGreen	0:6ceefe1c53e4	1618	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1619	/* Pick a segment and create the object name in directory form */
AdamGreen	0:6ceefe1c53e4	1620	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1621
AdamGreen	0:6ceefe1c53e4	1622	static
AdamGreen	0:6ceefe1c53e4	1623	FRESULT create_name (
AdamGreen	0:6ceefe1c53e4	1624	FATFS_DIR dj, / Pointer to the directory object */
AdamGreen	0:6ceefe1c53e4	1625	const TCHAR *path / Pointer to pointer to the segment in the path string */
AdamGreen	0:6ceefe1c53e4	1626	)
AdamGreen	0:6ceefe1c53e4	1627	{
AdamGreen	0:6ceefe1c53e4	1628	#ifdef _EXCVT
AdamGreen	0:6ceefe1c53e4	1629	static const BYTE excvt[] = _EXCVT; /* Upper conversion table for extended chars */
AdamGreen	0:6ceefe1c53e4	1630	#endif
AdamGreen	0:6ceefe1c53e4	1631
AdamGreen	0:6ceefe1c53e4	1632	#if _USE_LFN /* LFN configuration */
AdamGreen	0:6ceefe1c53e4	1633	BYTE b, cf;
AdamGreen	0:6ceefe1c53e4	1634	WCHAR w, *lfn;
AdamGreen	0:6ceefe1c53e4	1635	UINT i, ni, si, di;
AdamGreen	0:6ceefe1c53e4	1636	const TCHAR *p;
AdamGreen	0:6ceefe1c53e4	1637
AdamGreen	0:6ceefe1c53e4	1638	/* Create LFN in Unicode */
AdamGreen	0:6ceefe1c53e4	1639	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
AdamGreen	0:6ceefe1c53e4	1640	lfn = dj->lfn;
AdamGreen	0:6ceefe1c53e4	1641	si = di = 0;
AdamGreen	0:6ceefe1c53e4	1642	for (;;) {
AdamGreen	0:6ceefe1c53e4	1643	w = p[si++]; /* Get a character */
AdamGreen	0:6ceefe1c53e4	1644	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
AdamGreen	0:6ceefe1c53e4	1645	if (di >= _MAX_LFN) /* Reject too long name */
AdamGreen	0:6ceefe1c53e4	1646	return FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	1647	#if !_LFN_UNICODE
AdamGreen	0:6ceefe1c53e4	1648	w &= 0xFF;
AdamGreen	0:6ceefe1c53e4	1649	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
AdamGreen	0:6ceefe1c53e4	1650	b = (BYTE)p[si++]; /* Get 2nd byte */
AdamGreen	0:6ceefe1c53e4	1651	if (!IsDBCS2(b))
AdamGreen	0:6ceefe1c53e4	1652	return FR_INVALID_NAME; /* Reject invalid sequence */
AdamGreen	0:6ceefe1c53e4	1653	w = (w << 8) + b; /* Create a DBC */
AdamGreen	0:6ceefe1c53e4	1654	}
AdamGreen	0:6ceefe1c53e4	1655	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
AdamGreen	0:6ceefe1c53e4	1656	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
AdamGreen	0:6ceefe1c53e4	1657	#endif
AdamGreen	0:6ceefe1c53e4	1658	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal chars for LFN */
AdamGreen	0:6ceefe1c53e4	1659	return FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	1660	lfn[di++] = w; /* Store the Unicode char */
AdamGreen	0:6ceefe1c53e4	1661	}
AdamGreen	0:6ceefe1c53e4	1662	path = &p[si]; / Return pointer to the next segment */
AdamGreen	0:6ceefe1c53e4	1663	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
AdamGreen	0:6ceefe1c53e4	1664	#if _FS_RPATH
AdamGreen	0:6ceefe1c53e4	1665	if ((di == 1 && lfn[di-1] == '.') \|\| /* Is this a dot entry? */
AdamGreen	0:6ceefe1c53e4	1666	(di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
AdamGreen	0:6ceefe1c53e4	1667	lfn[di] = 0;
AdamGreen	0:6ceefe1c53e4	1668	for (i = 0; i < 11; i++)
AdamGreen	0:6ceefe1c53e4	1669	dj->fn[i] = (i < di) ? '.' : ' ';
AdamGreen	0:6ceefe1c53e4	1670	dj->fn[i] = cf \| NS_DOT; /* This is a dot entry */
AdamGreen	0:6ceefe1c53e4	1671	return FR_OK;
AdamGreen	0:6ceefe1c53e4	1672	}
AdamGreen	0:6ceefe1c53e4	1673	#endif
AdamGreen	0:6ceefe1c53e4	1674	while (di) { /* Strip trailing spaces and dots */
AdamGreen	0:6ceefe1c53e4	1675	w = lfn[di-1];
AdamGreen	0:6ceefe1c53e4	1676	if (w != ' ' && w != '.') break;
AdamGreen	0:6ceefe1c53e4	1677	di--;
AdamGreen	0:6ceefe1c53e4	1678	}
AdamGreen	0:6ceefe1c53e4	1679	if (!di) return FR_INVALID_NAME; /* Reject nul string */
AdamGreen	0:6ceefe1c53e4	1680
AdamGreen	0:6ceefe1c53e4	1681	lfn[di] = 0; /* LFN is created */
AdamGreen	0:6ceefe1c53e4	1682
AdamGreen	0:6ceefe1c53e4	1683	/* Create SFN in directory form */
AdamGreen	0:6ceefe1c53e4	1684	mem_set(dj->fn, ' ', 11);
AdamGreen	0:6ceefe1c53e4	1685	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
AdamGreen	0:6ceefe1c53e4	1686	if (si) cf \|= NS_LOSS \| NS_LFN;
AdamGreen	0:6ceefe1c53e4	1687	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
AdamGreen	0:6ceefe1c53e4	1688
AdamGreen	0:6ceefe1c53e4	1689	b = i = 0; ni = 8;
AdamGreen	0:6ceefe1c53e4	1690	for (;;) {
AdamGreen	0:6ceefe1c53e4	1691	w = lfn[si++]; /* Get an LFN char */
AdamGreen	0:6ceefe1c53e4	1692	if (!w) break; /* Break on end of the LFN */
AdamGreen	0:6ceefe1c53e4	1693	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
AdamGreen	0:6ceefe1c53e4	1694	cf \|= NS_LOSS \| NS_LFN; continue;
AdamGreen	0:6ceefe1c53e4	1695	}
AdamGreen	0:6ceefe1c53e4	1696
AdamGreen	0:6ceefe1c53e4	1697	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
AdamGreen	0:6ceefe1c53e4	1698	if (ni == 11) { /* Long extension */
AdamGreen	0:6ceefe1c53e4	1699	cf \|= NS_LOSS \| NS_LFN; break;
AdamGreen	0:6ceefe1c53e4	1700	}
AdamGreen	0:6ceefe1c53e4	1701	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
AdamGreen	0:6ceefe1c53e4	1702	if (si > di) break; /* No extension */
AdamGreen	0:6ceefe1c53e4	1703	si = di; i = 8; ni = 11; /* Enter extension section */
AdamGreen	0:6ceefe1c53e4	1704	b <<= 2; continue;
AdamGreen	0:6ceefe1c53e4	1705	}
AdamGreen	0:6ceefe1c53e4	1706
AdamGreen	0:6ceefe1c53e4	1707	if (w >= 0x80) { /* Non ASCII char */
AdamGreen	0:6ceefe1c53e4	1708	#ifdef _EXCVT
AdamGreen	0:6ceefe1c53e4	1709	w = ff_convert(w, 0); /* Unicode -> OEM code */
AdamGreen	0:6ceefe1c53e4	1710	if (w) w = excvt[w - 0x80]; /* Convert extended char to upper (SBCS) */
AdamGreen	0:6ceefe1c53e4	1711	#else
AdamGreen	0:6ceefe1c53e4	1712	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
AdamGreen	0:6ceefe1c53e4	1713	#endif
AdamGreen	0:6ceefe1c53e4	1714	cf \|= NS_LFN; /* Force create LFN entry */
AdamGreen	0:6ceefe1c53e4	1715	}
AdamGreen	0:6ceefe1c53e4	1716
AdamGreen	0:6ceefe1c53e4	1717	if (_DF1S && w >= 0x100) { /* Double byte char (always false on SBCS cfg) */
AdamGreen	0:6ceefe1c53e4	1718	if (i >= ni - 1) {
AdamGreen	0:6ceefe1c53e4	1719	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
AdamGreen	0:6ceefe1c53e4	1720	}
AdamGreen	0:6ceefe1c53e4	1721	dj->fn[i++] = (BYTE)(w >> 8);
AdamGreen	0:6ceefe1c53e4	1722	} else { /* Single byte char */
AdamGreen	0:6ceefe1c53e4	1723	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal chars for SFN */
AdamGreen	0:6ceefe1c53e4	1724	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
AdamGreen	0:6ceefe1c53e4	1725	} else {
AdamGreen	0:6ceefe1c53e4	1726	if (IsUpper(w)) { /* ASCII large capital */
AdamGreen	0:6ceefe1c53e4	1727	b \|= 2;
AdamGreen	0:6ceefe1c53e4	1728	} else {
AdamGreen	0:6ceefe1c53e4	1729	if (IsLower(w)) { /* ASCII small capital */
AdamGreen	0:6ceefe1c53e4	1730	b \|= 1; w -= 0x20;
AdamGreen	0:6ceefe1c53e4	1731	}
AdamGreen	0:6ceefe1c53e4	1732	}
AdamGreen	0:6ceefe1c53e4	1733	}
AdamGreen	0:6ceefe1c53e4	1734	}
AdamGreen	0:6ceefe1c53e4	1735	dj->fn[i++] = (BYTE)w;
AdamGreen	0:6ceefe1c53e4	1736	}
AdamGreen	0:6ceefe1c53e4	1737
AdamGreen	0:6ceefe1c53e4	1738	if (dj->fn[0] == DDE) dj->fn[0] = NDDE; /* If the first char collides with deleted mark, replace it with 0x05 */
AdamGreen	0:6ceefe1c53e4	1739
AdamGreen	0:6ceefe1c53e4	1740	if (ni == 8) b <<= 2;
AdamGreen	0:6ceefe1c53e4	1741	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
AdamGreen	0:6ceefe1c53e4	1742	cf \|= NS_LFN;
AdamGreen	0:6ceefe1c53e4	1743	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */
AdamGreen	0:6ceefe1c53e4	1744	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
AdamGreen	0:6ceefe1c53e4	1745	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
AdamGreen	0:6ceefe1c53e4	1746	}
AdamGreen	0:6ceefe1c53e4	1747
AdamGreen	0:6ceefe1c53e4	1748	dj->fn[NS] = cf; /* SFN is created */
AdamGreen	0:6ceefe1c53e4	1749
AdamGreen	0:6ceefe1c53e4	1750	return FR_OK;
AdamGreen	0:6ceefe1c53e4	1751
AdamGreen	0:6ceefe1c53e4	1752
AdamGreen	0:6ceefe1c53e4	1753	#else /* Non-LFN configuration */
AdamGreen	0:6ceefe1c53e4	1754	BYTE b, c, d, *sfn;
AdamGreen	0:6ceefe1c53e4	1755	UINT ni, si, i;
AdamGreen	0:6ceefe1c53e4	1756	const char *p;
AdamGreen	0:6ceefe1c53e4	1757
AdamGreen	0:6ceefe1c53e4	1758	/* Create file name in directory form */
AdamGreen	0:6ceefe1c53e4	1759	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
AdamGreen	0:6ceefe1c53e4	1760	sfn = dj->fn;
AdamGreen	0:6ceefe1c53e4	1761	mem_set(sfn, ' ', 11);
AdamGreen	0:6ceefe1c53e4	1762	si = i = b = 0; ni = 8;
AdamGreen	0:6ceefe1c53e4	1763	#if _FS_RPATH
AdamGreen	0:6ceefe1c53e4	1764	if (p[si] == '.') { /* Is this a dot entry? */
AdamGreen	0:6ceefe1c53e4	1765	for (;;) {
AdamGreen	0:6ceefe1c53e4	1766	c = (BYTE)p[si++];
AdamGreen	0:6ceefe1c53e4	1767	if (c != '.' \|\| si >= 3) break;
AdamGreen	0:6ceefe1c53e4	1768	sfn[i++] = c;
AdamGreen	0:6ceefe1c53e4	1769	}
AdamGreen	0:6ceefe1c53e4	1770	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	1771	path = &p[si]; / Return pointer to the next segment */
AdamGreen	0:6ceefe1c53e4	1772	sfn[NS] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
AdamGreen	0:6ceefe1c53e4	1773	return FR_OK;
AdamGreen	0:6ceefe1c53e4	1774	}
AdamGreen	0:6ceefe1c53e4	1775	#endif
AdamGreen	0:6ceefe1c53e4	1776	for (;;) {
AdamGreen	0:6ceefe1c53e4	1777	c = (BYTE)p[si++];
AdamGreen	0:6ceefe1c53e4	1778	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
AdamGreen	0:6ceefe1c53e4	1779	if (c == '.' \|\| i >= ni) {
AdamGreen	0:6ceefe1c53e4	1780	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	1781	i = 8; ni = 11;
AdamGreen	0:6ceefe1c53e4	1782	b <<= 2; continue;
AdamGreen	0:6ceefe1c53e4	1783	}
AdamGreen	0:6ceefe1c53e4	1784	if (c >= 0x80) { /* Extended char? */
AdamGreen	0:6ceefe1c53e4	1785	b \|= 3; /* Eliminate NT flag */
AdamGreen	0:6ceefe1c53e4	1786	#ifdef _EXCVT
AdamGreen	0:6ceefe1c53e4	1787	c = excvt[c-0x80]; /* Upper conversion (SBCS) */
AdamGreen	0:6ceefe1c53e4	1788	#else
AdamGreen	0:6ceefe1c53e4	1789	#if !_DF1S /* ASCII only cfg */
AdamGreen	0:6ceefe1c53e4	1790	return FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	1791	#endif
AdamGreen	0:6ceefe1c53e4	1792	#endif
AdamGreen	0:6ceefe1c53e4	1793	}
AdamGreen	0:6ceefe1c53e4	1794	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
AdamGreen	0:6ceefe1c53e4	1795	d = (BYTE)p[si++]; /* Get 2nd byte */
AdamGreen	0:6ceefe1c53e4	1796	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
AdamGreen	0:6ceefe1c53e4	1797	return FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	1798	sfn[i++] = c;
AdamGreen	0:6ceefe1c53e4	1799	sfn[i++] = d;
AdamGreen	0:6ceefe1c53e4	1800	} else { /* Single byte code */
AdamGreen	0:6ceefe1c53e4	1801	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
AdamGreen	0:6ceefe1c53e4	1802	return FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	1803	if (IsUpper(c)) { /* ASCII large capital? */
AdamGreen	0:6ceefe1c53e4	1804	b \|= 2;
AdamGreen	0:6ceefe1c53e4	1805	} else {
AdamGreen	0:6ceefe1c53e4	1806	if (IsLower(c)) { /* ASCII small capital? */
AdamGreen	0:6ceefe1c53e4	1807	b \|= 1; c -= 0x20;
AdamGreen	0:6ceefe1c53e4	1808	}
AdamGreen	0:6ceefe1c53e4	1809	}
AdamGreen	0:6ceefe1c53e4	1810	sfn[i++] = c;
AdamGreen	0:6ceefe1c53e4	1811	}
AdamGreen	0:6ceefe1c53e4	1812	}
AdamGreen	0:6ceefe1c53e4	1813	path = &p[si]; / Return pointer to the next segment */
AdamGreen	0:6ceefe1c53e4	1814	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
AdamGreen	0:6ceefe1c53e4	1815
AdamGreen	0:6ceefe1c53e4	1816	if (!i) return FR_INVALID_NAME; /* Reject nul string */
AdamGreen	0:6ceefe1c53e4	1817	if (sfn[0] == DDE) sfn[0] = NDDE; /* When first char collides with DDE, replace it with 0x05 */
AdamGreen	0:6ceefe1c53e4	1818
AdamGreen	0:6ceefe1c53e4	1819	if (ni == 8) b <<= 2;
AdamGreen	0:6ceefe1c53e4	1820	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
AdamGreen	0:6ceefe1c53e4	1821	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
AdamGreen	0:6ceefe1c53e4	1822
AdamGreen	0:6ceefe1c53e4	1823	sfn[NS] = c; /* Store NT flag, File name is created */
AdamGreen	0:6ceefe1c53e4	1824
AdamGreen	0:6ceefe1c53e4	1825	return FR_OK;
AdamGreen	0:6ceefe1c53e4	1826	#endif
AdamGreen	0:6ceefe1c53e4	1827	}
AdamGreen	0:6ceefe1c53e4	1828
AdamGreen	0:6ceefe1c53e4	1829
AdamGreen	0:6ceefe1c53e4	1830
AdamGreen	0:6ceefe1c53e4	1831
AdamGreen	0:6ceefe1c53e4	1832	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1833	/* Get file information from directory entry */
AdamGreen	0:6ceefe1c53e4	1834	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1835	#if _FS_MINIMIZE <= 1
AdamGreen	0:6ceefe1c53e4	1836	static
AdamGreen	0:6ceefe1c53e4	1837	void get_fileinfo ( /* No return code */
AdamGreen	0:6ceefe1c53e4	1838	FATFS_DIR dj, / Pointer to the directory object */
AdamGreen	0:6ceefe1c53e4	1839	FILINFO fno / Pointer to the file information to be filled */
AdamGreen	0:6ceefe1c53e4	1840	)
AdamGreen	0:6ceefe1c53e4	1841	{
AdamGreen	0:6ceefe1c53e4	1842	UINT i;
AdamGreen	0:6ceefe1c53e4	1843	BYTE nt, *dir;
AdamGreen	0:6ceefe1c53e4	1844	TCHAR *p, c;
AdamGreen	0:6ceefe1c53e4	1845
AdamGreen	0:6ceefe1c53e4	1846
AdamGreen	0:6ceefe1c53e4	1847	p = fno->fname;
AdamGreen	0:6ceefe1c53e4	1848	if (dj->sect) {
AdamGreen	0:6ceefe1c53e4	1849	dir = dj->dir;
AdamGreen	0:6ceefe1c53e4	1850	nt = dir[DIR_NTres]; /* NT flag */
AdamGreen	0:6ceefe1c53e4	1851	for (i = 0; i < 8; i++) { /* Copy name body */
AdamGreen	0:6ceefe1c53e4	1852	c = dir[i];
AdamGreen	0:6ceefe1c53e4	1853	if (c == ' ') break;
AdamGreen	0:6ceefe1c53e4	1854	if (c == NDDE) c = (TCHAR)DDE;
AdamGreen	0:6ceefe1c53e4	1855	if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
AdamGreen	0:6ceefe1c53e4	1856	#if _LFN_UNICODE
AdamGreen	0:6ceefe1c53e4	1857	if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i+1]))
AdamGreen	0:6ceefe1c53e4	1858	c = (c << 8) \| dir[++i];
AdamGreen	0:6ceefe1c53e4	1859	c = ff_convert(c, 1);
AdamGreen	0:6ceefe1c53e4	1860	if (!c) c = '?';
AdamGreen	0:6ceefe1c53e4	1861	#endif
AdamGreen	0:6ceefe1c53e4	1862	*p++ = c;
AdamGreen	0:6ceefe1c53e4	1863	}
AdamGreen	0:6ceefe1c53e4	1864	if (dir[8] != ' ') { /* Copy name extension */
AdamGreen	0:6ceefe1c53e4	1865	*p++ = '.';
AdamGreen	0:6ceefe1c53e4	1866	for (i = 8; i < 11; i++) {
AdamGreen	0:6ceefe1c53e4	1867	c = dir[i];
AdamGreen	0:6ceefe1c53e4	1868	if (c == ' ') break;
AdamGreen	0:6ceefe1c53e4	1869	if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
AdamGreen	0:6ceefe1c53e4	1870	#if _LFN_UNICODE
AdamGreen	0:6ceefe1c53e4	1871	if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i+1]))
AdamGreen	0:6ceefe1c53e4	1872	c = (c << 8) \| dir[++i];
AdamGreen	0:6ceefe1c53e4	1873	c = ff_convert(c, 1);
AdamGreen	0:6ceefe1c53e4	1874	if (!c) c = '?';
AdamGreen	0:6ceefe1c53e4	1875	#endif
AdamGreen	0:6ceefe1c53e4	1876	*p++ = c;
AdamGreen	0:6ceefe1c53e4	1877	}
AdamGreen	0:6ceefe1c53e4	1878	}
AdamGreen	0:6ceefe1c53e4	1879	fno->fattrib = dir[DIR_Attr]; /* Attribute */
AdamGreen	0:6ceefe1c53e4	1880	fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
AdamGreen	0:6ceefe1c53e4	1881	fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
AdamGreen	0:6ceefe1c53e4	1882	fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
AdamGreen	0:6ceefe1c53e4	1883	}
AdamGreen	0:6ceefe1c53e4	1884	p = 0; / Terminate SFN str by a \0 */
AdamGreen	0:6ceefe1c53e4	1885
AdamGreen	0:6ceefe1c53e4	1886	#if _USE_LFN
AdamGreen	0:6ceefe1c53e4	1887	if (fno->lfname && fno->lfsize) {
AdamGreen	0:6ceefe1c53e4	1888	TCHAR *tp = fno->lfname;
AdamGreen	0:6ceefe1c53e4	1889	WCHAR w, *lfn;
AdamGreen	0:6ceefe1c53e4	1890
AdamGreen	0:6ceefe1c53e4	1891	i = 0;
AdamGreen	0:6ceefe1c53e4	1892	if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
AdamGreen	0:6ceefe1c53e4	1893	lfn = dj->lfn;
AdamGreen	0:6ceefe1c53e4	1894	while ((w = lfn++) != 0) { / Get an LFN char */
AdamGreen	0:6ceefe1c53e4	1895	#if !_LFN_UNICODE
AdamGreen	0:6ceefe1c53e4	1896	w = ff_convert(w, 0); /* Unicode -> OEM conversion */
AdamGreen	0:6ceefe1c53e4	1897	if (!w) { i = 0; break; } /* Could not convert, no LFN */
AdamGreen	0:6ceefe1c53e4	1898	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
AdamGreen	0:6ceefe1c53e4	1899	tp[i++] = (TCHAR)(w >> 8);
AdamGreen	0:6ceefe1c53e4	1900	#endif
AdamGreen	0:6ceefe1c53e4	1901	if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overflow, no LFN */
AdamGreen	0:6ceefe1c53e4	1902	tp[i++] = (TCHAR)w;
AdamGreen	0:6ceefe1c53e4	1903	}
AdamGreen	0:6ceefe1c53e4	1904	}
AdamGreen	0:6ceefe1c53e4	1905	tp[i] = 0; /* Terminate the LFN str by a \0 */
AdamGreen	0:6ceefe1c53e4	1906	}
AdamGreen	0:6ceefe1c53e4	1907	#endif
AdamGreen	0:6ceefe1c53e4	1908	}
AdamGreen	0:6ceefe1c53e4	1909	#endif /* _FS_MINIMIZE <= 1 */
AdamGreen	0:6ceefe1c53e4	1910
AdamGreen	0:6ceefe1c53e4	1911
AdamGreen	0:6ceefe1c53e4	1912
AdamGreen	0:6ceefe1c53e4	1913
AdamGreen	0:6ceefe1c53e4	1914	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1915	/* Follow a file path */
AdamGreen	0:6ceefe1c53e4	1916	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1917
AdamGreen	0:6ceefe1c53e4	1918	static
AdamGreen	0:6ceefe1c53e4	1919	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
AdamGreen	0:6ceefe1c53e4	1920	FATFS_DIR dj, / Directory object to return last directory and found object */
AdamGreen	0:6ceefe1c53e4	1921	const TCHAR path / Full-path string to find a file or directory */
AdamGreen	0:6ceefe1c53e4	1922	)
AdamGreen	0:6ceefe1c53e4	1923	{
AdamGreen	0:6ceefe1c53e4	1924	FRESULT res;
AdamGreen	0:6ceefe1c53e4	1925	BYTE *dir, ns;
AdamGreen	0:6ceefe1c53e4	1926
AdamGreen	0:6ceefe1c53e4	1927
AdamGreen	0:6ceefe1c53e4	1928	#if _FS_RPATH
AdamGreen	0:6ceefe1c53e4	1929	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
AdamGreen	0:6ceefe1c53e4	1930	path++; dj->sclust = 0; /* Strip it and start from the root dir */
AdamGreen	0:6ceefe1c53e4	1931	} else { /* No heading separator */
AdamGreen	0:6ceefe1c53e4	1932	dj->sclust = dj->fs->cdir; /* Start from the current dir */
AdamGreen	0:6ceefe1c53e4	1933	}
AdamGreen	0:6ceefe1c53e4	1934	#else
AdamGreen	0:6ceefe1c53e4	1935	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
AdamGreen	0:6ceefe1c53e4	1936	path++;
AdamGreen	0:6ceefe1c53e4	1937	dj->sclust = 0; /* Start from the root dir */
AdamGreen	0:6ceefe1c53e4	1938	#endif
AdamGreen	0:6ceefe1c53e4	1939
AdamGreen	0:6ceefe1c53e4	1940	if ((UINT)path < ' ') { / Nul path means the start directory itself */
AdamGreen	0:6ceefe1c53e4	1941	res = dir_sdi(dj, 0);
AdamGreen	0:6ceefe1c53e4	1942	dj->dir = 0;
AdamGreen	0:6ceefe1c53e4	1943
AdamGreen	0:6ceefe1c53e4	1944	} else { /* Follow path */
AdamGreen	0:6ceefe1c53e4	1945	for (;;) {
AdamGreen	0:6ceefe1c53e4	1946	res = create_name(dj, &path); /* Get a segment */
AdamGreen	0:6ceefe1c53e4	1947	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	1948	res = dir_find(dj); /* Find it */
AdamGreen	0:6ceefe1c53e4	1949	ns = *(dj->fn+NS);
AdamGreen	0:6ceefe1c53e4	1950	if (res != FR_OK) { /* Failed to find the object */
AdamGreen	0:6ceefe1c53e4	1951	if (res != FR_NO_FILE) break; /* Abort if any hard error occured */
AdamGreen	0:6ceefe1c53e4	1952	/* Object not found */
AdamGreen	0:6ceefe1c53e4	1953	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exit */
AdamGreen	0:6ceefe1c53e4	1954	dj->sclust = 0; dj->dir = 0; /* It is the root dir */
AdamGreen	0:6ceefe1c53e4	1955	res = FR_OK;
AdamGreen	0:6ceefe1c53e4	1956	if (!(ns & NS_LAST)) continue;
AdamGreen	0:6ceefe1c53e4	1957	} else { /* Could not find the object */
AdamGreen	0:6ceefe1c53e4	1958	if (!(ns & NS_LAST)) res = FR_NO_PATH;
AdamGreen	0:6ceefe1c53e4	1959	}
AdamGreen	0:6ceefe1c53e4	1960	break;
AdamGreen	0:6ceefe1c53e4	1961	}
AdamGreen	0:6ceefe1c53e4	1962	if (ns & NS_LAST) break; /* Last segment match. Function completed. */
AdamGreen	0:6ceefe1c53e4	1963	dir = dj->dir; /* There is next segment. Follow the sub directory */
AdamGreen	0:6ceefe1c53e4	1964	if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
AdamGreen	0:6ceefe1c53e4	1965	res = FR_NO_PATH; break;
AdamGreen	0:6ceefe1c53e4	1966	}
AdamGreen	0:6ceefe1c53e4	1967	dj->sclust = LD_CLUST(dir);
AdamGreen	0:6ceefe1c53e4	1968	}
AdamGreen	0:6ceefe1c53e4	1969	}
AdamGreen	0:6ceefe1c53e4	1970
AdamGreen	0:6ceefe1c53e4	1971	return res;
AdamGreen	0:6ceefe1c53e4	1972	}
AdamGreen	0:6ceefe1c53e4	1973
AdamGreen	0:6ceefe1c53e4	1974
AdamGreen	0:6ceefe1c53e4	1975
AdamGreen	0:6ceefe1c53e4	1976
AdamGreen	0:6ceefe1c53e4	1977	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1978	/* Load a sector and check if it is an FAT Volume Boot Record */
AdamGreen	0:6ceefe1c53e4	1979	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	1980
AdamGreen	0:6ceefe1c53e4	1981	static
AdamGreen	0:6ceefe1c53e4	1982	BYTE check_fs ( /* 0:FAT-VBR, 1:Valid BR but not FAT, 2:Not a BR, 3:Disk error */
AdamGreen	0:6ceefe1c53e4	1983	FATFS fs, / File system object */
AdamGreen	0:6ceefe1c53e4	1984	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
AdamGreen	0:6ceefe1c53e4	1985	)
AdamGreen	0:6ceefe1c53e4	1986	{
AdamGreen	0:6ceefe1c53e4	1987	if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK) /* Load boot record */
AdamGreen	0:6ceefe1c53e4	1988	return 3;
AdamGreen	0:6ceefe1c53e4	1989	if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
AdamGreen	0:6ceefe1c53e4	1990	return 2;
AdamGreen	0:6ceefe1c53e4	1991
AdamGreen	0:6ceefe1c53e4	1992	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
AdamGreen	0:6ceefe1c53e4	1993	return 0;
AdamGreen	0:6ceefe1c53e4	1994	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
AdamGreen	0:6ceefe1c53e4	1995	return 0;
AdamGreen	0:6ceefe1c53e4	1996
AdamGreen	0:6ceefe1c53e4	1997	return 1;
AdamGreen	0:6ceefe1c53e4	1998	}
AdamGreen	0:6ceefe1c53e4	1999
AdamGreen	0:6ceefe1c53e4	2000
AdamGreen	0:6ceefe1c53e4	2001
AdamGreen	0:6ceefe1c53e4	2002
AdamGreen	0:6ceefe1c53e4	2003	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2004	/* Check if the file system object is valid or not */
AdamGreen	0:6ceefe1c53e4	2005	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2006
AdamGreen	0:6ceefe1c53e4	2007	static
AdamGreen	0:6ceefe1c53e4	2008	FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occurred */
AdamGreen	0:6ceefe1c53e4	2009	const TCHAR *path, / Pointer to pointer to the path name (drive number) */
AdamGreen	0:6ceefe1c53e4	2010	FATFS *rfs, / Pointer to pointer to the found file system object */
AdamGreen	0:6ceefe1c53e4	2011	BYTE chk_wp /* !=0: Check media write protection for write access */
AdamGreen	0:6ceefe1c53e4	2012	)
AdamGreen	0:6ceefe1c53e4	2013	{
AdamGreen	0:6ceefe1c53e4	2014	BYTE fmt, b, pi, *tbl;
AdamGreen	0:6ceefe1c53e4	2015	UINT vol;
AdamGreen	0:6ceefe1c53e4	2016	DSTATUS stat;
AdamGreen	0:6ceefe1c53e4	2017	DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
AdamGreen	0:6ceefe1c53e4	2018	WORD nrsv;
AdamGreen	0:6ceefe1c53e4	2019	const TCHAR p = path;
AdamGreen	0:6ceefe1c53e4	2020	FATFS *fs;
AdamGreen	0:6ceefe1c53e4	2021
AdamGreen	0:6ceefe1c53e4	2022	/* Get logical drive number from the path name */
AdamGreen	0:6ceefe1c53e4	2023	vol = p[0] - '0'; /* Is there a drive number? */
AdamGreen	0:6ceefe1c53e4	2024	if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */
AdamGreen	0:6ceefe1c53e4	2025	p += 2; path = p; / Return pointer to the path name */
AdamGreen	0:6ceefe1c53e4	2026	} else { /* No drive number is given */
AdamGreen	0:6ceefe1c53e4	2027	#if _FS_RPATH
AdamGreen	0:6ceefe1c53e4	2028	vol = CurrVol; /* Use current drive */
AdamGreen	0:6ceefe1c53e4	2029	#else
AdamGreen	0:6ceefe1c53e4	2030	vol = 0; /* Use drive 0 */
AdamGreen	0:6ceefe1c53e4	2031	#endif
AdamGreen	0:6ceefe1c53e4	2032	}
AdamGreen	0:6ceefe1c53e4	2033
AdamGreen	0:6ceefe1c53e4	2034	/* Check if the file system object is valid or not */
AdamGreen	0:6ceefe1c53e4	2035	if (vol >= _VOLUMES) /* Is the drive number valid? */
AdamGreen	0:6ceefe1c53e4	2036	return FR_INVALID_DRIVE;
AdamGreen	0:6ceefe1c53e4	2037	rfs = fs = FatFs[vol]; / Return pointer to the corresponding file system object */
AdamGreen	0:6ceefe1c53e4	2038	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
AdamGreen	0:6ceefe1c53e4	2039
AdamGreen	0:6ceefe1c53e4	2040	ENTER_FF(fs); /* Lock file system */
AdamGreen	0:6ceefe1c53e4	2041
AdamGreen	0:6ceefe1c53e4	2042	if (fs->fs_type) { /* If the logical drive has been mounted */
AdamGreen	0:6ceefe1c53e4	2043	stat = disk_status(fs->drv);
AdamGreen	0:6ceefe1c53e4	2044	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */
AdamGreen	0:6ceefe1c53e4	2045	if (!_FS_READONLY && chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */
AdamGreen	0:6ceefe1c53e4	2046	return FR_WRITE_PROTECTED;
AdamGreen	0:6ceefe1c53e4	2047	return FR_OK; /* The file system object is valid */
AdamGreen	0:6ceefe1c53e4	2048	}
AdamGreen	0:6ceefe1c53e4	2049	}
AdamGreen	0:6ceefe1c53e4	2050
AdamGreen	0:6ceefe1c53e4	2051	/* The file system object is not valid. */
AdamGreen	0:6ceefe1c53e4	2052	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
AdamGreen	0:6ceefe1c53e4	2053
AdamGreen	0:6ceefe1c53e4	2054	fs->fs_type = 0; /* Clear the file system object */
AdamGreen	0:6ceefe1c53e4	2055	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
AdamGreen	0:6ceefe1c53e4	2056	stat = disk_initialize(fs->drv); /* Initialize low level disk I/O layer */
AdamGreen	0:6ceefe1c53e4	2057	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
AdamGreen	0:6ceefe1c53e4	2058	return FR_NOT_READY; /* Failed to initialize due to no media or hard error */
AdamGreen	0:6ceefe1c53e4	2059	if (!_FS_READONLY && chk_wp && (stat & STA_PROTECT)) /* Check disk write protection if needed */
AdamGreen	0:6ceefe1c53e4	2060	return FR_WRITE_PROTECTED;
AdamGreen	0:6ceefe1c53e4	2061	#if _MAX_SS != 512 /* Get disk sector size (variable sector size cfg only) */
AdamGreen	0:6ceefe1c53e4	2062	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
AdamGreen	0:6ceefe1c53e4	2063	return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	2064	#endif
AdamGreen	0:6ceefe1c53e4	2065	/* Search FAT partition on the drive. Supports only generic partitionings, FDISK and SFD. */
AdamGreen	0:6ceefe1c53e4	2066	fmt = check_fs(fs, bsect = 0); /* Load sector 0 and check if it is an FAT-VBR (in SFD) */
AdamGreen	0:6ceefe1c53e4	2067	if (LD2PT(vol) && !fmt) fmt = 1; /* Force non-SFD if the volume is forced partition */
AdamGreen	0:6ceefe1c53e4	2068	if (fmt == 1) { /* Not an FAT-VBR, the physical drive can be partitioned */
AdamGreen	0:6ceefe1c53e4	2069	/* Check the partition listed in the partition table */
AdamGreen	0:6ceefe1c53e4	2070	pi = LD2PT(vol);
AdamGreen	0:6ceefe1c53e4	2071	if (pi) pi--;
AdamGreen	0:6ceefe1c53e4	2072	tbl = &fs->win[MBR_Table + pi * SZ_PTE];/* Partition table */
AdamGreen	0:6ceefe1c53e4	2073	if (tbl[4]) { /* Is the partition existing? */
AdamGreen	0:6ceefe1c53e4	2074	bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
AdamGreen	0:6ceefe1c53e4	2075	fmt = check_fs(fs, bsect); /* Check the partition */
AdamGreen	0:6ceefe1c53e4	2076	}
AdamGreen	0:6ceefe1c53e4	2077	}
AdamGreen	0:6ceefe1c53e4	2078	if (fmt == 3) return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	2079	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
AdamGreen	0:6ceefe1c53e4	2080
AdamGreen	0:6ceefe1c53e4	2081	/* An FAT volume is found. Following code initializes the file system object */
AdamGreen	0:6ceefe1c53e4	2082
AdamGreen	0:6ceefe1c53e4	2083	if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
AdamGreen	0:6ceefe1c53e4	2084	return FR_NO_FILESYSTEM;
AdamGreen	0:6ceefe1c53e4	2085
AdamGreen	0:6ceefe1c53e4	2086	fasize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */
AdamGreen	0:6ceefe1c53e4	2087	if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32);
AdamGreen	0:6ceefe1c53e4	2088	fs->fsize = fasize;
AdamGreen	0:6ceefe1c53e4	2089
AdamGreen	0:6ceefe1c53e4	2090	fs->n_fats = b = fs->win[BPB_NumFATs]; /* Number of FAT copies */
AdamGreen	0:6ceefe1c53e4	2091	if (b != 1 && b != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
AdamGreen	0:6ceefe1c53e4	2092	fasize = b; / Number of sectors for FAT area */
AdamGreen	0:6ceefe1c53e4	2093
AdamGreen	0:6ceefe1c53e4	2094	fs->csize = b = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
AdamGreen	0:6ceefe1c53e4	2095	if (!b \|\| (b & (b - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
AdamGreen	0:6ceefe1c53e4	2096
AdamGreen	0:6ceefe1c53e4	2097	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Number of root directory entries */
AdamGreen	0:6ceefe1c53e4	2098	if (fs->n_rootdir % (SS(fs) / SZ_DIR)) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be sector aligned) */
AdamGreen	0:6ceefe1c53e4	2099
AdamGreen	0:6ceefe1c53e4	2100	tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */
AdamGreen	0:6ceefe1c53e4	2101	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
AdamGreen	0:6ceefe1c53e4	2102
AdamGreen	0:6ceefe1c53e4	2103	nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt); /* Number of reserved sectors */
AdamGreen	0:6ceefe1c53e4	2104	if (!nrsv) return FR_NO_FILESYSTEM; /* (BPB_RsvdSecCnt must not be 0) */
AdamGreen	0:6ceefe1c53e4	2105
AdamGreen	0:6ceefe1c53e4	2106	/* Determine the FAT sub type */
AdamGreen	0:6ceefe1c53e4	2107	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR); /* RSV+FAT+FATFS_DIR */
AdamGreen	0:6ceefe1c53e4	2108	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
AdamGreen	0:6ceefe1c53e4	2109	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
AdamGreen	0:6ceefe1c53e4	2110	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
AdamGreen	0:6ceefe1c53e4	2111	fmt = FS_FAT12;
AdamGreen	0:6ceefe1c53e4	2112	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
AdamGreen	0:6ceefe1c53e4	2113	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
AdamGreen	0:6ceefe1c53e4	2114
AdamGreen	0:6ceefe1c53e4	2115	/* Boundaries and Limits */
AdamGreen	0:6ceefe1c53e4	2116	fs->n_fatent = nclst + 2; /* Number of FAT entries */
AdamGreen	0:6ceefe1c53e4	2117	fs->database = bsect + sysect; /* Data start sector */
AdamGreen	0:6ceefe1c53e4	2118	fs->fatbase = bsect + nrsv; /* FAT start sector */
AdamGreen	0:6ceefe1c53e4	2119	if (fmt == FS_FAT32) {
AdamGreen	0:6ceefe1c53e4	2120	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
AdamGreen	0:6ceefe1c53e4	2121	fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
AdamGreen	0:6ceefe1c53e4	2122	szbfat = fs->n_fatent * 4; /* (Required FAT size) */
AdamGreen	0:6ceefe1c53e4	2123	} else {
AdamGreen	0:6ceefe1c53e4	2124	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
AdamGreen	0:6ceefe1c53e4	2125	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
AdamGreen	0:6ceefe1c53e4	2126	szbfat = (fmt == FS_FAT16) ? /* (Required FAT size) */
AdamGreen	0:6ceefe1c53e4	2127	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
AdamGreen	0:6ceefe1c53e4	2128	}
AdamGreen	0:6ceefe1c53e4	2129	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than required) */
AdamGreen	0:6ceefe1c53e4	2130	return FR_NO_FILESYSTEM;
AdamGreen	0:6ceefe1c53e4	2131
AdamGreen	0:6ceefe1c53e4	2132	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	2133	/* Initialize cluster allocation information */
AdamGreen	0:6ceefe1c53e4	2134	fs->free_clust = 0xFFFFFFFF;
AdamGreen	0:6ceefe1c53e4	2135	fs->last_clust = 0;
AdamGreen	0:6ceefe1c53e4	2136
AdamGreen	0:6ceefe1c53e4	2137	/* Get fsinfo if available */
AdamGreen	0:6ceefe1c53e4	2138	if (fmt == FS_FAT32) {
AdamGreen	0:6ceefe1c53e4	2139	fs->fsi_flag = 0;
AdamGreen	0:6ceefe1c53e4	2140	fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
AdamGreen	0:6ceefe1c53e4	2141	if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK &&
AdamGreen	0:6ceefe1c53e4	2142	LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
AdamGreen	0:6ceefe1c53e4	2143	LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
AdamGreen	0:6ceefe1c53e4	2144	LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
AdamGreen	0:6ceefe1c53e4	2145	fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
AdamGreen	0:6ceefe1c53e4	2146	fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
AdamGreen	0:6ceefe1c53e4	2147	}
AdamGreen	0:6ceefe1c53e4	2148	}
AdamGreen	0:6ceefe1c53e4	2149	#endif
AdamGreen	0:6ceefe1c53e4	2150	fs->fs_type = fmt; /* FAT sub-type */
AdamGreen	0:6ceefe1c53e4	2151	fs->id = ++Fsid; /* File system mount ID */
AdamGreen	0:6ceefe1c53e4	2152	fs->winsect = 0; /* Invalidate sector cache */
AdamGreen	0:6ceefe1c53e4	2153	fs->wflag = 0;
AdamGreen	0:6ceefe1c53e4	2154	#if _FS_RPATH
AdamGreen	0:6ceefe1c53e4	2155	fs->cdir = 0; /* Current directory (root dir) */
AdamGreen	0:6ceefe1c53e4	2156	#endif
AdamGreen	0:6ceefe1c53e4	2157	#if _FS_SHARE /* Clear file lock semaphores */
AdamGreen	0:6ceefe1c53e4	2158	clear_lock(fs);
AdamGreen	0:6ceefe1c53e4	2159	#endif
AdamGreen	0:6ceefe1c53e4	2160
AdamGreen	0:6ceefe1c53e4	2161	return FR_OK;
AdamGreen	0:6ceefe1c53e4	2162	}
AdamGreen	0:6ceefe1c53e4	2163
AdamGreen	0:6ceefe1c53e4	2164
AdamGreen	0:6ceefe1c53e4	2165
AdamGreen	0:6ceefe1c53e4	2166
AdamGreen	0:6ceefe1c53e4	2167	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2168	/* Check if the file/dir object is valid or not */
AdamGreen	0:6ceefe1c53e4	2169	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2170
AdamGreen	0:6ceefe1c53e4	2171	static
AdamGreen	0:6ceefe1c53e4	2172	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
AdamGreen	0:6ceefe1c53e4	2173	FATFS fs, / Pointer to the file system object */
AdamGreen	0:6ceefe1c53e4	2174	WORD id /* Member id of the target object to be checked */
AdamGreen	0:6ceefe1c53e4	2175	)
AdamGreen	0:6ceefe1c53e4	2176	{
AdamGreen	0:6ceefe1c53e4	2177	if (!fs \|\| !fs->fs_type \|\| fs->id != id)
AdamGreen	0:6ceefe1c53e4	2178	return FR_INVALID_OBJECT;
AdamGreen	0:6ceefe1c53e4	2179
AdamGreen	0:6ceefe1c53e4	2180	ENTER_FF(fs); /* Lock file system */
AdamGreen	0:6ceefe1c53e4	2181
AdamGreen	0:6ceefe1c53e4	2182	if (disk_status(fs->drv) & STA_NOINIT)
AdamGreen	0:6ceefe1c53e4	2183	return FR_NOT_READY;
AdamGreen	0:6ceefe1c53e4	2184
AdamGreen	0:6ceefe1c53e4	2185	return FR_OK;
AdamGreen	0:6ceefe1c53e4	2186	}
AdamGreen	0:6ceefe1c53e4	2187
AdamGreen	0:6ceefe1c53e4	2188
AdamGreen	0:6ceefe1c53e4	2189
AdamGreen	0:6ceefe1c53e4	2190
AdamGreen	0:6ceefe1c53e4	2191	/*--------------------------------------------------------------------------
AdamGreen	0:6ceefe1c53e4	2192
AdamGreen	0:6ceefe1c53e4	2193	Public Functions
AdamGreen	0:6ceefe1c53e4	2194
AdamGreen	0:6ceefe1c53e4	2195	--------------------------------------------------------------------------*/
AdamGreen	0:6ceefe1c53e4	2196
AdamGreen	0:6ceefe1c53e4	2197
AdamGreen	0:6ceefe1c53e4	2198
AdamGreen	0:6ceefe1c53e4	2199	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2200	/* Mount/Unmount a Logical Drive */
AdamGreen	0:6ceefe1c53e4	2201	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2202
AdamGreen	0:6ceefe1c53e4	2203	FRESULT f_mount (
AdamGreen	0:6ceefe1c53e4	2204	BYTE vol, /* Logical drive number to be mounted/unmounted */
AdamGreen	0:6ceefe1c53e4	2205	FATFS fs / Pointer to new file system object (NULL for unmount)*/
AdamGreen	0:6ceefe1c53e4	2206	)
AdamGreen	0:6ceefe1c53e4	2207	{
AdamGreen	0:6ceefe1c53e4	2208	FATFS *rfs;
AdamGreen	0:6ceefe1c53e4	2209
AdamGreen	0:6ceefe1c53e4	2210
AdamGreen	0:6ceefe1c53e4	2211	if (vol >= _VOLUMES) /* Check if the drive number is valid */
AdamGreen	0:6ceefe1c53e4	2212	return FR_INVALID_DRIVE;
AdamGreen	0:6ceefe1c53e4	2213	rfs = FatFs[vol]; /* Get current fs object */
AdamGreen	0:6ceefe1c53e4	2214
AdamGreen	0:6ceefe1c53e4	2215	if (rfs) {
AdamGreen	0:6ceefe1c53e4	2216	#if _FS_SHARE
AdamGreen	0:6ceefe1c53e4	2217	clear_lock(rfs);
AdamGreen	0:6ceefe1c53e4	2218	#endif
AdamGreen	0:6ceefe1c53e4	2219	#if _FS_REENTRANT /* Discard sync object of the current volume */
AdamGreen	0:6ceefe1c53e4	2220	if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	2221	#endif
AdamGreen	0:6ceefe1c53e4	2222	rfs->fs_type = 0; /* Clear old fs object */
AdamGreen	0:6ceefe1c53e4	2223	}
AdamGreen	0:6ceefe1c53e4	2224
AdamGreen	0:6ceefe1c53e4	2225	if (fs) {
AdamGreen	0:6ceefe1c53e4	2226	fs->fs_type = 0; /* Clear new fs object */
AdamGreen	0:6ceefe1c53e4	2227	#if _FS_REENTRANT /* Create sync object for the new volume */
AdamGreen	0:6ceefe1c53e4	2228	if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	2229	#endif
AdamGreen	0:6ceefe1c53e4	2230	}
AdamGreen	0:6ceefe1c53e4	2231	FatFs[vol] = fs; /* Register new fs object */
AdamGreen	0:6ceefe1c53e4	2232
AdamGreen	0:6ceefe1c53e4	2233	return FR_OK;
AdamGreen	0:6ceefe1c53e4	2234	}
AdamGreen	0:6ceefe1c53e4	2235
AdamGreen	0:6ceefe1c53e4	2236
AdamGreen	0:6ceefe1c53e4	2237
AdamGreen	0:6ceefe1c53e4	2238
AdamGreen	0:6ceefe1c53e4	2239	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2240	/* Open or Create a File */
AdamGreen	0:6ceefe1c53e4	2241	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2242
AdamGreen	0:6ceefe1c53e4	2243	FRESULT f_open (
AdamGreen	0:6ceefe1c53e4	2244	FIL fp, / Pointer to the blank file object */
AdamGreen	0:6ceefe1c53e4	2245	const TCHAR path, / Pointer to the file name */
AdamGreen	0:6ceefe1c53e4	2246	BYTE mode /* Access mode and file open mode flags */
AdamGreen	0:6ceefe1c53e4	2247	)
AdamGreen	0:6ceefe1c53e4	2248	{
AdamGreen	0:6ceefe1c53e4	2249	FRESULT res;
AdamGreen	0:6ceefe1c53e4	2250	FATFS_DIR dj;
AdamGreen	0:6ceefe1c53e4	2251	BYTE *dir;
AdamGreen	0:6ceefe1c53e4	2252	DEF_NAMEBUF;
AdamGreen	0:6ceefe1c53e4	2253
AdamGreen	0:6ceefe1c53e4	2254
AdamGreen	0:6ceefe1c53e4	2255	fp->fs = 0; /* Clear file object */
AdamGreen	0:6ceefe1c53e4	2256
AdamGreen	0:6ceefe1c53e4	2257	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	2258	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
AdamGreen	0:6ceefe1c53e4	2259	res = chk_mounted(&path, &dj.fs, (BYTE)(mode & ~FA_READ));
AdamGreen	0:6ceefe1c53e4	2260	#else
AdamGreen	0:6ceefe1c53e4	2261	mode &= FA_READ;
AdamGreen	0:6ceefe1c53e4	2262	res = chk_mounted(&path, &dj.fs, 0);
AdamGreen	0:6ceefe1c53e4	2263	#endif
AdamGreen	0:6ceefe1c53e4	2264	INIT_BUF(dj);
AdamGreen	0:6ceefe1c53e4	2265	if (res == FR_OK)
AdamGreen	0:6ceefe1c53e4	2266	res = follow_path(&dj, path); /* Follow the file path */
AdamGreen	0:6ceefe1c53e4	2267	dir = dj.dir;
AdamGreen	0:6ceefe1c53e4	2268
AdamGreen	0:6ceefe1c53e4	2269	#if !_FS_READONLY /* R/W configuration */
AdamGreen	0:6ceefe1c53e4	2270	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	2271	if (!dir) /* Current dir itself */
AdamGreen	0:6ceefe1c53e4	2272	res = FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	2273	#if _FS_SHARE
AdamGreen	0:6ceefe1c53e4	2274	else
AdamGreen	0:6ceefe1c53e4	2275	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
AdamGreen	0:6ceefe1c53e4	2276	#endif
AdamGreen	0:6ceefe1c53e4	2277	}
AdamGreen	0:6ceefe1c53e4	2278	/* Create or Open a file */
AdamGreen	0:6ceefe1c53e4	2279	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
AdamGreen	0:6ceefe1c53e4	2280	DWORD dw, cl;
AdamGreen	0:6ceefe1c53e4	2281
AdamGreen	0:6ceefe1c53e4	2282	if (res != FR_OK) { /* No file, create new */
AdamGreen	0:6ceefe1c53e4	2283	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
AdamGreen	0:6ceefe1c53e4	2284	#if _FS_SHARE
AdamGreen	0:6ceefe1c53e4	2285	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
AdamGreen	0:6ceefe1c53e4	2286	#else
AdamGreen	0:6ceefe1c53e4	2287	res = dir_register(&dj);
AdamGreen	0:6ceefe1c53e4	2288	#endif
AdamGreen	0:6ceefe1c53e4	2289	mode \|= FA_CREATE_ALWAYS; /* File is created */
AdamGreen	0:6ceefe1c53e4	2290	dir = dj.dir; /* New entry */
AdamGreen	0:6ceefe1c53e4	2291	}
AdamGreen	0:6ceefe1c53e4	2292	else { /* Any object is already existing */
AdamGreen	0:6ceefe1c53e4	2293	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or FATFS_DIR) */
AdamGreen	0:6ceefe1c53e4	2294	res = FR_DENIED;
AdamGreen	0:6ceefe1c53e4	2295	} else {
AdamGreen	0:6ceefe1c53e4	2296	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
AdamGreen	0:6ceefe1c53e4	2297	res = FR_EXIST;
AdamGreen	0:6ceefe1c53e4	2298	}
AdamGreen	0:6ceefe1c53e4	2299	}
AdamGreen	0:6ceefe1c53e4	2300	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
AdamGreen	0:6ceefe1c53e4	2301	dw = get_fattime(); /* Created time */
AdamGreen	0:6ceefe1c53e4	2302	ST_DWORD(dir+DIR_CrtTime, dw);
AdamGreen	0:6ceefe1c53e4	2303	dir[DIR_Attr] = 0; /* Reset attribute */
AdamGreen	0:6ceefe1c53e4	2304	ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
AdamGreen	0:6ceefe1c53e4	2305	cl = LD_CLUST(dir); /* Get start cluster */
AdamGreen	0:6ceefe1c53e4	2306	ST_CLUST(dir, 0); /* cluster = 0 */
AdamGreen	0:6ceefe1c53e4	2307	dj.fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	2308	if (cl) { /* Remove the cluster chain if exist */
AdamGreen	0:6ceefe1c53e4	2309	dw = dj.fs->winsect;
AdamGreen	0:6ceefe1c53e4	2310	res = remove_chain(dj.fs, cl);
AdamGreen	0:6ceefe1c53e4	2311	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	2312	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
AdamGreen	0:6ceefe1c53e4	2313	res = move_window(dj.fs, dw);
AdamGreen	0:6ceefe1c53e4	2314	}
AdamGreen	0:6ceefe1c53e4	2315	}
AdamGreen	0:6ceefe1c53e4	2316	}
AdamGreen	0:6ceefe1c53e4	2317	}
AdamGreen	0:6ceefe1c53e4	2318	else { /* Open an existing file */
AdamGreen	0:6ceefe1c53e4	2319	if (res == FR_OK) { /* Follow succeeded */
AdamGreen	0:6ceefe1c53e4	2320	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
AdamGreen	0:6ceefe1c53e4	2321	res = FR_NO_FILE;
AdamGreen	0:6ceefe1c53e4	2322	} else {
AdamGreen	0:6ceefe1c53e4	2323	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
AdamGreen	0:6ceefe1c53e4	2324	res = FR_DENIED;
AdamGreen	0:6ceefe1c53e4	2325	}
AdamGreen	0:6ceefe1c53e4	2326	}
AdamGreen	0:6ceefe1c53e4	2327	}
AdamGreen	0:6ceefe1c53e4	2328	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	2329	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
AdamGreen	0:6ceefe1c53e4	2330	mode \|= FA__WRITTEN;
AdamGreen	0:6ceefe1c53e4	2331	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
AdamGreen	0:6ceefe1c53e4	2332	fp->dir_ptr = dir;
AdamGreen	0:6ceefe1c53e4	2333	#if _FS_SHARE
AdamGreen	0:6ceefe1c53e4	2334	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
AdamGreen	0:6ceefe1c53e4	2335	if (!fp->lockid) res = FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	2336	#endif
AdamGreen	0:6ceefe1c53e4	2337	}
AdamGreen	0:6ceefe1c53e4	2338
AdamGreen	0:6ceefe1c53e4	2339	#else /* R/O configuration */
AdamGreen	0:6ceefe1c53e4	2340	if (res == FR_OK) { /* Follow succeeded */
AdamGreen	0:6ceefe1c53e4	2341	if (!dir) { /* Current dir itself */
AdamGreen	0:6ceefe1c53e4	2342	res = FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	2343	} else {
AdamGreen	0:6ceefe1c53e4	2344	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
AdamGreen	0:6ceefe1c53e4	2345	res = FR_NO_FILE;
AdamGreen	0:6ceefe1c53e4	2346	}
AdamGreen	0:6ceefe1c53e4	2347	}
AdamGreen	0:6ceefe1c53e4	2348	#endif
AdamGreen	0:6ceefe1c53e4	2349	FREE_BUF();
AdamGreen	0:6ceefe1c53e4	2350
AdamGreen	0:6ceefe1c53e4	2351	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	2352	fp->flag = mode; /* File access mode */
AdamGreen	0:6ceefe1c53e4	2353	fp->sclust = LD_CLUST(dir); /* File start cluster */
AdamGreen	0:6ceefe1c53e4	2354	fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
AdamGreen	0:6ceefe1c53e4	2355	fp->fptr = 0; /* File pointer */
AdamGreen	0:6ceefe1c53e4	2356	fp->dsect = 0;
AdamGreen	0:6ceefe1c53e4	2357	#if _USE_FASTSEEK
AdamGreen	0:6ceefe1c53e4	2358	fp->cltbl = 0; /* Normal seek mode */
AdamGreen	0:6ceefe1c53e4	2359	#endif
AdamGreen	0:6ceefe1c53e4	2360	fp->fs = dj.fs; fp->id = dj.fs->id; /* Validate file object */
AdamGreen	0:6ceefe1c53e4	2361	}
AdamGreen	0:6ceefe1c53e4	2362
AdamGreen	0:6ceefe1c53e4	2363	LEAVE_FF(dj.fs, res);
AdamGreen	0:6ceefe1c53e4	2364	}
AdamGreen	0:6ceefe1c53e4	2365
AdamGreen	0:6ceefe1c53e4	2366
AdamGreen	0:6ceefe1c53e4	2367
AdamGreen	0:6ceefe1c53e4	2368
AdamGreen	0:6ceefe1c53e4	2369	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2370	/* Read File */
AdamGreen	0:6ceefe1c53e4	2371	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2372
AdamGreen	0:6ceefe1c53e4	2373	FRESULT f_read (
AdamGreen	0:6ceefe1c53e4	2374	FIL fp, / Pointer to the file object */
AdamGreen	0:6ceefe1c53e4	2375	void buff, / Pointer to data buffer */
AdamGreen	0:6ceefe1c53e4	2376	UINT btr, /* Number of bytes to read */
AdamGreen	0:6ceefe1c53e4	2377	UINT br / Pointer to number of bytes read */
AdamGreen	0:6ceefe1c53e4	2378	)
AdamGreen	0:6ceefe1c53e4	2379	{
AdamGreen	0:6ceefe1c53e4	2380	FRESULT res;
AdamGreen	0:6ceefe1c53e4	2381	DWORD clst, sect, remain;
AdamGreen	0:6ceefe1c53e4	2382	UINT rcnt, cc;
AdamGreen	0:6ceefe1c53e4	2383	BYTE csect, rbuff = (BYTE)buff;
AdamGreen	0:6ceefe1c53e4	2384
AdamGreen	0:6ceefe1c53e4	2385
AdamGreen	0:6ceefe1c53e4	2386	br = 0; / Initialize byte counter */
AdamGreen	0:6ceefe1c53e4	2387
AdamGreen	0:6ceefe1c53e4	2388	res = validate(fp->fs, fp->id); /* Check validity */
AdamGreen	0:6ceefe1c53e4	2389	if (res != FR_OK) LEAVE_FF(fp->fs, res);
AdamGreen	0:6ceefe1c53e4	2390	if (fp->flag & FA__ERROR) /* Aborted file? */
AdamGreen	0:6ceefe1c53e4	2391	LEAVE_FF(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	2392	if (!(fp->flag & FA_READ)) /* Check access mode */
AdamGreen	0:6ceefe1c53e4	2393	LEAVE_FF(fp->fs, FR_DENIED);
AdamGreen	0:6ceefe1c53e4	2394	remain = fp->fsize - fp->fptr;
AdamGreen	0:6ceefe1c53e4	2395	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
AdamGreen	0:6ceefe1c53e4	2396
AdamGreen	0:6ceefe1c53e4	2397	for ( ; btr; /* Repeat until all data read */
AdamGreen	0:6ceefe1c53e4	2398	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
AdamGreen	0:6ceefe1c53e4	2399	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
AdamGreen	0:6ceefe1c53e4	2400	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
AdamGreen	0:6ceefe1c53e4	2401	if (!csect) { /* On the cluster boundary? */
AdamGreen	0:6ceefe1c53e4	2402	if (fp->fptr == 0) { /* On the top of the file? */
AdamGreen	0:6ceefe1c53e4	2403	clst = fp->sclust; /* Follow from the origin */
AdamGreen	0:6ceefe1c53e4	2404	} else { /* Middle or end of the file */
AdamGreen	0:6ceefe1c53e4	2405	#if _USE_FASTSEEK
AdamGreen	0:6ceefe1c53e4	2406	if (fp->cltbl)
AdamGreen	0:6ceefe1c53e4	2407	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
AdamGreen	0:6ceefe1c53e4	2408	else
AdamGreen	0:6ceefe1c53e4	2409	#endif
AdamGreen	0:6ceefe1c53e4	2410	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
AdamGreen	0:6ceefe1c53e4	2411	}
AdamGreen	0:6ceefe1c53e4	2412	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	2413	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2414	fp->clust = clst; /* Update current cluster */
AdamGreen	0:6ceefe1c53e4	2415	}
AdamGreen	0:6ceefe1c53e4	2416	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
AdamGreen	0:6ceefe1c53e4	2417	if (!sect) ABORT(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	2418	sect += csect;
AdamGreen	0:6ceefe1c53e4	2419	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
AdamGreen	0:6ceefe1c53e4	2420	if (cc) { /* Read maximum contiguous sectors directly */
AdamGreen	0:6ceefe1c53e4	2421	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
AdamGreen	0:6ceefe1c53e4	2422	cc = fp->fs->csize - csect;
AdamGreen	0:6ceefe1c53e4	2423	if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK)
AdamGreen	0:6ceefe1c53e4	2424	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2425	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
AdamGreen	0:6ceefe1c53e4	2426	#if _FS_TINY
AdamGreen	0:6ceefe1c53e4	2427	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
AdamGreen	0:6ceefe1c53e4	2428	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
AdamGreen	0:6ceefe1c53e4	2429	#else
AdamGreen	0:6ceefe1c53e4	2430	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
AdamGreen	0:6ceefe1c53e4	2431	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
AdamGreen	0:6ceefe1c53e4	2432	#endif
AdamGreen	0:6ceefe1c53e4	2433	#endif
AdamGreen	0:6ceefe1c53e4	2434	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
AdamGreen	0:6ceefe1c53e4	2435	continue;
AdamGreen	0:6ceefe1c53e4	2436	}
AdamGreen	0:6ceefe1c53e4	2437	#if !_FS_TINY
AdamGreen	0:6ceefe1c53e4	2438	if (fp->dsect != sect) { /* Load data sector if not in cache */
AdamGreen	0:6ceefe1c53e4	2439	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	2440	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
AdamGreen	0:6ceefe1c53e4	2441	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
AdamGreen	0:6ceefe1c53e4	2442	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2443	fp->flag &= ~FA__DIRTY;
AdamGreen	0:6ceefe1c53e4	2444	}
AdamGreen	0:6ceefe1c53e4	2445	#endif
AdamGreen	0:6ceefe1c53e4	2446	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
AdamGreen	0:6ceefe1c53e4	2447	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2448	}
AdamGreen	0:6ceefe1c53e4	2449	#endif
AdamGreen	0:6ceefe1c53e4	2450	fp->dsect = sect;
AdamGreen	0:6ceefe1c53e4	2451	}
AdamGreen	0:6ceefe1c53e4	2452	rcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
AdamGreen	0:6ceefe1c53e4	2453	if (rcnt > btr) rcnt = btr;
AdamGreen	0:6ceefe1c53e4	2454	#if _FS_TINY
AdamGreen	0:6ceefe1c53e4	2455	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
AdamGreen	0:6ceefe1c53e4	2456	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2457	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
AdamGreen	0:6ceefe1c53e4	2458	#else
AdamGreen	0:6ceefe1c53e4	2459	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
AdamGreen	0:6ceefe1c53e4	2460	#endif
AdamGreen	0:6ceefe1c53e4	2461	}
AdamGreen	0:6ceefe1c53e4	2462
AdamGreen	0:6ceefe1c53e4	2463	LEAVE_FF(fp->fs, FR_OK);
AdamGreen	0:6ceefe1c53e4	2464	}
AdamGreen	0:6ceefe1c53e4	2465
AdamGreen	0:6ceefe1c53e4	2466
AdamGreen	0:6ceefe1c53e4	2467
AdamGreen	0:6ceefe1c53e4	2468
AdamGreen	0:6ceefe1c53e4	2469	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	2470	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2471	/* Write File */
AdamGreen	0:6ceefe1c53e4	2472	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2473
AdamGreen	0:6ceefe1c53e4	2474	FRESULT f_write (
AdamGreen	0:6ceefe1c53e4	2475	FIL fp, / Pointer to the file object */
AdamGreen	0:6ceefe1c53e4	2476	const void buff, / Pointer to the data to be written */
AdamGreen	0:6ceefe1c53e4	2477	UINT btw, /* Number of bytes to write */
AdamGreen	0:6ceefe1c53e4	2478	UINT bw / Pointer to number of bytes written */
AdamGreen	0:6ceefe1c53e4	2479	)
AdamGreen	0:6ceefe1c53e4	2480	{
AdamGreen	0:6ceefe1c53e4	2481	FRESULT res;
AdamGreen	0:6ceefe1c53e4	2482	DWORD clst, sect;
AdamGreen	0:6ceefe1c53e4	2483	UINT wcnt, cc;
AdamGreen	0:6ceefe1c53e4	2484	const BYTE wbuff = (const BYTE)buff;
AdamGreen	0:6ceefe1c53e4	2485	BYTE csect;
AdamGreen	0:6ceefe1c53e4	2486
AdamGreen	0:6ceefe1c53e4	2487
AdamGreen	0:6ceefe1c53e4	2488	bw = 0; / Initialize byte counter */
AdamGreen	0:6ceefe1c53e4	2489
AdamGreen	0:6ceefe1c53e4	2490	res = validate(fp->fs, fp->id); /* Check validity */
AdamGreen	0:6ceefe1c53e4	2491	if (res != FR_OK) LEAVE_FF(fp->fs, res);
AdamGreen	0:6ceefe1c53e4	2492	if (fp->flag & FA__ERROR) /* Aborted file? */
AdamGreen	0:6ceefe1c53e4	2493	LEAVE_FF(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	2494	if (!(fp->flag & FA_WRITE)) /* Check access mode */
AdamGreen	0:6ceefe1c53e4	2495	LEAVE_FF(fp->fs, FR_DENIED);
AdamGreen	0:6ceefe1c53e4	2496	if ((DWORD)(fp->fsize + btw) < fp->fsize) btw = 0; /* File size cannot reach 4GB */
AdamGreen	0:6ceefe1c53e4	2497
AdamGreen	0:6ceefe1c53e4	2498	for ( ; btw; /* Repeat until all data written */
AdamGreen	0:6ceefe1c53e4	2499	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
AdamGreen	0:6ceefe1c53e4	2500	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
AdamGreen	0:6ceefe1c53e4	2501	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
AdamGreen	0:6ceefe1c53e4	2502	if (!csect) { /* On the cluster boundary? */
AdamGreen	0:6ceefe1c53e4	2503	if (fp->fptr == 0) { /* On the top of the file? */
AdamGreen	0:6ceefe1c53e4	2504	clst = fp->sclust; /* Follow from the origin */
AdamGreen	0:6ceefe1c53e4	2505	if (clst == 0) /* When no cluster is allocated, */
AdamGreen	0:6ceefe1c53e4	2506	fp->sclust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
AdamGreen	0:6ceefe1c53e4	2507	} else { /* Middle or end of the file */
AdamGreen	0:6ceefe1c53e4	2508	#if _USE_FASTSEEK
AdamGreen	0:6ceefe1c53e4	2509	if (fp->cltbl)
AdamGreen	0:6ceefe1c53e4	2510	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
AdamGreen	0:6ceefe1c53e4	2511	else
AdamGreen	0:6ceefe1c53e4	2512	#endif
AdamGreen	0:6ceefe1c53e4	2513	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
AdamGreen	0:6ceefe1c53e4	2514	}
AdamGreen	0:6ceefe1c53e4	2515	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
AdamGreen	0:6ceefe1c53e4	2516	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	2517	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2518	fp->clust = clst; /* Update current cluster */
AdamGreen	0:6ceefe1c53e4	2519	}
AdamGreen	0:6ceefe1c53e4	2520	#if _FS_TINY
AdamGreen	0:6ceefe1c53e4	2521	if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write-back sector cache */
AdamGreen	0:6ceefe1c53e4	2522	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2523	#else
AdamGreen	0:6ceefe1c53e4	2524	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
AdamGreen	0:6ceefe1c53e4	2525	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
AdamGreen	0:6ceefe1c53e4	2526	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2527	fp->flag &= ~FA__DIRTY;
AdamGreen	0:6ceefe1c53e4	2528	}
AdamGreen	0:6ceefe1c53e4	2529	#endif
AdamGreen	0:6ceefe1c53e4	2530	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
AdamGreen	0:6ceefe1c53e4	2531	if (!sect) ABORT(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	2532	sect += csect;
AdamGreen	0:6ceefe1c53e4	2533	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
AdamGreen	0:6ceefe1c53e4	2534	if (cc) { /* Write maximum contiguous sectors directly */
AdamGreen	0:6ceefe1c53e4	2535	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
AdamGreen	0:6ceefe1c53e4	2536	cc = fp->fs->csize - csect;
AdamGreen	0:6ceefe1c53e4	2537	if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK)
AdamGreen	0:6ceefe1c53e4	2538	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2539	#if _FS_TINY
AdamGreen	0:6ceefe1c53e4	2540	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
AdamGreen	0:6ceefe1c53e4	2541	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
AdamGreen	0:6ceefe1c53e4	2542	fp->fs->wflag = 0;
AdamGreen	0:6ceefe1c53e4	2543	}
AdamGreen	0:6ceefe1c53e4	2544	#else
AdamGreen	0:6ceefe1c53e4	2545	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
AdamGreen	0:6ceefe1c53e4	2546	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
AdamGreen	0:6ceefe1c53e4	2547	fp->flag &= ~FA__DIRTY;
AdamGreen	0:6ceefe1c53e4	2548	}
AdamGreen	0:6ceefe1c53e4	2549	#endif
AdamGreen	0:6ceefe1c53e4	2550	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
AdamGreen	0:6ceefe1c53e4	2551	continue;
AdamGreen	0:6ceefe1c53e4	2552	}
AdamGreen	0:6ceefe1c53e4	2553	#if _FS_TINY
AdamGreen	0:6ceefe1c53e4	2554	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
AdamGreen	0:6ceefe1c53e4	2555	if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2556	fp->fs->winsect = sect;
AdamGreen	0:6ceefe1c53e4	2557	}
AdamGreen	0:6ceefe1c53e4	2558	#else
AdamGreen	0:6ceefe1c53e4	2559	if (fp->dsect != sect) { /* Fill sector cache with file data */
AdamGreen	0:6ceefe1c53e4	2560	if (fp->fptr < fp->fsize &&
AdamGreen	0:6ceefe1c53e4	2561	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
AdamGreen	0:6ceefe1c53e4	2562	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2563	}
AdamGreen	0:6ceefe1c53e4	2564	#endif
AdamGreen	0:6ceefe1c53e4	2565	fp->dsect = sect;
AdamGreen	0:6ceefe1c53e4	2566	}
AdamGreen	0:6ceefe1c53e4	2567	wcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
AdamGreen	0:6ceefe1c53e4	2568	if (wcnt > btw) wcnt = btw;
AdamGreen	0:6ceefe1c53e4	2569	#if _FS_TINY
AdamGreen	0:6ceefe1c53e4	2570	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
AdamGreen	0:6ceefe1c53e4	2571	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2572	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
AdamGreen	0:6ceefe1c53e4	2573	fp->fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	2574	#else
AdamGreen	0:6ceefe1c53e4	2575	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
AdamGreen	0:6ceefe1c53e4	2576	fp->flag \|= FA__DIRTY;
AdamGreen	0:6ceefe1c53e4	2577	#endif
AdamGreen	0:6ceefe1c53e4	2578	}
AdamGreen	0:6ceefe1c53e4	2579
AdamGreen	0:6ceefe1c53e4	2580	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
AdamGreen	0:6ceefe1c53e4	2581	fp->flag \|= FA__WRITTEN; /* Set file change flag */
AdamGreen	0:6ceefe1c53e4	2582
AdamGreen	0:6ceefe1c53e4	2583	LEAVE_FF(fp->fs, FR_OK);
AdamGreen	0:6ceefe1c53e4	2584	}
AdamGreen	0:6ceefe1c53e4	2585
AdamGreen	0:6ceefe1c53e4	2586
AdamGreen	0:6ceefe1c53e4	2587
AdamGreen	0:6ceefe1c53e4	2588
AdamGreen	0:6ceefe1c53e4	2589	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2590	/* Synchronize the File Object */
AdamGreen	0:6ceefe1c53e4	2591	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2592
AdamGreen	0:6ceefe1c53e4	2593	FRESULT f_sync (
AdamGreen	0:6ceefe1c53e4	2594	FIL fp / Pointer to the file object */
AdamGreen	0:6ceefe1c53e4	2595	)
AdamGreen	0:6ceefe1c53e4	2596	{
AdamGreen	0:6ceefe1c53e4	2597	FRESULT res;
AdamGreen	0:6ceefe1c53e4	2598	DWORD tim;
AdamGreen	0:6ceefe1c53e4	2599	BYTE *dir;
AdamGreen	0:6ceefe1c53e4	2600
AdamGreen	0:6ceefe1c53e4	2601
AdamGreen	0:6ceefe1c53e4	2602	res = validate(fp->fs, fp->id); /* Check validity of the object */
AdamGreen	0:6ceefe1c53e4	2603	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	2604	if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
AdamGreen	0:6ceefe1c53e4	2605	#if !_FS_TINY /* Write-back dirty buffer */
AdamGreen	0:6ceefe1c53e4	2606	if (fp->flag & FA__DIRTY) {
AdamGreen	0:6ceefe1c53e4	2607	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
AdamGreen	0:6ceefe1c53e4	2608	LEAVE_FF(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2609	fp->flag &= ~FA__DIRTY;
AdamGreen	0:6ceefe1c53e4	2610	}
AdamGreen	0:6ceefe1c53e4	2611	#endif
AdamGreen	0:6ceefe1c53e4	2612	/* Update the directory entry */
AdamGreen	0:6ceefe1c53e4	2613	res = move_window(fp->fs, fp->dir_sect);
AdamGreen	0:6ceefe1c53e4	2614	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	2615	dir = fp->dir_ptr;
AdamGreen	0:6ceefe1c53e4	2616	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
AdamGreen	0:6ceefe1c53e4	2617	ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
AdamGreen	0:6ceefe1c53e4	2618	ST_CLUST(dir, fp->sclust); /* Update start cluster */
AdamGreen	0:6ceefe1c53e4	2619	tim = get_fattime(); /* Update updated time */
AdamGreen	0:6ceefe1c53e4	2620	ST_DWORD(dir+DIR_WrtTime, tim);
AdamGreen	0:6ceefe1c53e4	2621	fp->flag &= ~FA__WRITTEN;
AdamGreen	0:6ceefe1c53e4	2622	fp->fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	2623	res = sync(fp->fs);
AdamGreen	0:6ceefe1c53e4	2624	}
AdamGreen	0:6ceefe1c53e4	2625	}
AdamGreen	0:6ceefe1c53e4	2626	}
AdamGreen	0:6ceefe1c53e4	2627
AdamGreen	0:6ceefe1c53e4	2628	LEAVE_FF(fp->fs, res);
AdamGreen	0:6ceefe1c53e4	2629	}
AdamGreen	0:6ceefe1c53e4	2630
AdamGreen	0:6ceefe1c53e4	2631	#endif /* !_FS_READONLY */
AdamGreen	0:6ceefe1c53e4	2632
AdamGreen	0:6ceefe1c53e4	2633
AdamGreen	0:6ceefe1c53e4	2634
AdamGreen	0:6ceefe1c53e4	2635
AdamGreen	0:6ceefe1c53e4	2636	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2637	/* Close File */
AdamGreen	0:6ceefe1c53e4	2638	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2639
AdamGreen	0:6ceefe1c53e4	2640	FRESULT f_close (
AdamGreen	0:6ceefe1c53e4	2641	FIL fp / Pointer to the file object to be closed */
AdamGreen	0:6ceefe1c53e4	2642	)
AdamGreen	0:6ceefe1c53e4	2643	{
AdamGreen	0:6ceefe1c53e4	2644	FRESULT res;
AdamGreen	0:6ceefe1c53e4	2645
AdamGreen	0:6ceefe1c53e4	2646	#if _FS_READONLY
AdamGreen	0:6ceefe1c53e4	2647	FATFS *fs = fp->fs;
AdamGreen	0:6ceefe1c53e4	2648	res = validate(fs, fp->id);
AdamGreen	0:6ceefe1c53e4	2649	if (res == FR_OK) fp->fs = 0; /* Discard file object */
AdamGreen	0:6ceefe1c53e4	2650	LEAVE_FF(fs, res);
AdamGreen	0:6ceefe1c53e4	2651
AdamGreen	0:6ceefe1c53e4	2652	#else
AdamGreen	0:6ceefe1c53e4	2653	res = f_sync(fp); /* Flush cached data */
AdamGreen	0:6ceefe1c53e4	2654	#if _FS_SHARE
AdamGreen	0:6ceefe1c53e4	2655	if (res == FR_OK) { /* Decrement open counter */
AdamGreen	0:6ceefe1c53e4	2656	#if _FS_REENTRANT
AdamGreen	0:6ceefe1c53e4	2657	res = validate(fp->fs, fp->id);
AdamGreen	0:6ceefe1c53e4	2658	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	2659	res = dec_lock(fp->lockid);
AdamGreen	0:6ceefe1c53e4	2660	unlock_fs(fp->fs, FR_OK);
AdamGreen	0:6ceefe1c53e4	2661	}
AdamGreen	0:6ceefe1c53e4	2662	#else
AdamGreen	0:6ceefe1c53e4	2663	res = dec_lock(fp->lockid);
AdamGreen	0:6ceefe1c53e4	2664	#endif
AdamGreen	0:6ceefe1c53e4	2665	}
AdamGreen	0:6ceefe1c53e4	2666	#endif
AdamGreen	0:6ceefe1c53e4	2667	if (res == FR_OK) fp->fs = 0; /* Discard file object */
AdamGreen	0:6ceefe1c53e4	2668	return res;
AdamGreen	0:6ceefe1c53e4	2669	#endif
AdamGreen	0:6ceefe1c53e4	2670	}
AdamGreen	0:6ceefe1c53e4	2671
AdamGreen	0:6ceefe1c53e4	2672
AdamGreen	0:6ceefe1c53e4	2673
AdamGreen	0:6ceefe1c53e4	2674
AdamGreen	0:6ceefe1c53e4	2675	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2676	/* Current Drive/Directory Handlings */
AdamGreen	0:6ceefe1c53e4	2677	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2678
AdamGreen	0:6ceefe1c53e4	2679	#if _FS_RPATH >= 1
AdamGreen	0:6ceefe1c53e4	2680
AdamGreen	0:6ceefe1c53e4	2681	FRESULT f_chdrive (
AdamGreen	0:6ceefe1c53e4	2682	BYTE drv /* Drive number */
AdamGreen	0:6ceefe1c53e4	2683	)
AdamGreen	0:6ceefe1c53e4	2684	{
AdamGreen	0:6ceefe1c53e4	2685	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
AdamGreen	0:6ceefe1c53e4	2686
AdamGreen	0:6ceefe1c53e4	2687	CurrVol = drv;
AdamGreen	0:6ceefe1c53e4	2688
AdamGreen	0:6ceefe1c53e4	2689	return FR_OK;
AdamGreen	0:6ceefe1c53e4	2690	}
AdamGreen	0:6ceefe1c53e4	2691
AdamGreen	0:6ceefe1c53e4	2692
AdamGreen	0:6ceefe1c53e4	2693
AdamGreen	0:6ceefe1c53e4	2694	FRESULT f_chdir (
AdamGreen	0:6ceefe1c53e4	2695	const TCHAR path / Pointer to the directory path */
AdamGreen	0:6ceefe1c53e4	2696	)
AdamGreen	0:6ceefe1c53e4	2697	{
AdamGreen	0:6ceefe1c53e4	2698	FRESULT res;
AdamGreen	0:6ceefe1c53e4	2699	FATFS_DIR dj;
AdamGreen	0:6ceefe1c53e4	2700	DEF_NAMEBUF;
AdamGreen	0:6ceefe1c53e4	2701
AdamGreen	0:6ceefe1c53e4	2702
AdamGreen	0:6ceefe1c53e4	2703	res = chk_mounted(&path, &dj.fs, 0);
AdamGreen	0:6ceefe1c53e4	2704	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	2705	INIT_BUF(dj);
AdamGreen	0:6ceefe1c53e4	2706	res = follow_path(&dj, path); /* Follow the path */
AdamGreen	0:6ceefe1c53e4	2707	FREE_BUF();
AdamGreen	0:6ceefe1c53e4	2708	if (res == FR_OK) { /* Follow completed */
AdamGreen	0:6ceefe1c53e4	2709	if (!dj.dir) {
AdamGreen	0:6ceefe1c53e4	2710	dj.fs->cdir = dj.sclust; /* Start directory itself */
AdamGreen	0:6ceefe1c53e4	2711	} else {
AdamGreen	0:6ceefe1c53e4	2712	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
AdamGreen	0:6ceefe1c53e4	2713	dj.fs->cdir = LD_CLUST(dj.dir);
AdamGreen	0:6ceefe1c53e4	2714	else
AdamGreen	0:6ceefe1c53e4	2715	res = FR_NO_PATH; /* Reached but a file */
AdamGreen	0:6ceefe1c53e4	2716	}
AdamGreen	0:6ceefe1c53e4	2717	}
AdamGreen	0:6ceefe1c53e4	2718	if (res == FR_NO_FILE) res = FR_NO_PATH;
AdamGreen	0:6ceefe1c53e4	2719	}
AdamGreen	0:6ceefe1c53e4	2720
AdamGreen	0:6ceefe1c53e4	2721	LEAVE_FF(dj.fs, res);
AdamGreen	0:6ceefe1c53e4	2722	}
AdamGreen	0:6ceefe1c53e4	2723
AdamGreen	0:6ceefe1c53e4	2724
AdamGreen	0:6ceefe1c53e4	2725	#if _FS_RPATH >= 2
AdamGreen	0:6ceefe1c53e4	2726	FRESULT f_getcwd (
AdamGreen	0:6ceefe1c53e4	2727	TCHAR path, / Pointer to the directory path */
AdamGreen	0:6ceefe1c53e4	2728	UINT sz_path /* Size of path */
AdamGreen	0:6ceefe1c53e4	2729	)
AdamGreen	0:6ceefe1c53e4	2730	{
AdamGreen	0:6ceefe1c53e4	2731	FRESULT res;
AdamGreen	0:6ceefe1c53e4	2732	FATFS_DIR dj;
AdamGreen	0:6ceefe1c53e4	2733	UINT i, n;
AdamGreen	0:6ceefe1c53e4	2734	DWORD ccl;
AdamGreen	0:6ceefe1c53e4	2735	TCHAR *tp;
AdamGreen	0:6ceefe1c53e4	2736	FILINFO fno;
AdamGreen	0:6ceefe1c53e4	2737	DEF_NAMEBUF;
AdamGreen	0:6ceefe1c53e4	2738
AdamGreen	0:6ceefe1c53e4	2739
AdamGreen	0:6ceefe1c53e4	2740	*path = 0;
AdamGreen	0:6ceefe1c53e4	2741	res = chk_mounted((const TCHAR*)&path, &dj.fs, 0); / Get current volume */
AdamGreen	0:6ceefe1c53e4	2742	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	2743	INIT_BUF(dj);
AdamGreen	0:6ceefe1c53e4	2744	i = sz_path; /* Bottom of buffer (dir stack base) */
AdamGreen	0:6ceefe1c53e4	2745	dj.sclust = dj.fs->cdir; /* Start to follow upper dir from current dir */
AdamGreen	0:6ceefe1c53e4	2746	while ((ccl = dj.sclust) != 0) { /* Repeat while current dir is a sub-dir */
AdamGreen	0:6ceefe1c53e4	2747	res = dir_sdi(&dj, 1); /* Get parent dir */
AdamGreen	0:6ceefe1c53e4	2748	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	2749	res = dir_read(&dj);
AdamGreen	0:6ceefe1c53e4	2750	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	2751	dj.sclust = LD_CLUST(dj.dir); /* Goto parent dir */
AdamGreen	0:6ceefe1c53e4	2752	res = dir_sdi(&dj, 0);
AdamGreen	0:6ceefe1c53e4	2753	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	2754	do { /* Find the entry links to the child dir */
AdamGreen	0:6ceefe1c53e4	2755	res = dir_read(&dj);
AdamGreen	0:6ceefe1c53e4	2756	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	2757	if (ccl == LD_CLUST(dj.dir)) break; /* Found the entry */
AdamGreen	0:6ceefe1c53e4	2758	res = dir_next(&dj, 0);
AdamGreen	0:6ceefe1c53e4	2759	} while (res == FR_OK);
AdamGreen	0:6ceefe1c53e4	2760	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
AdamGreen	0:6ceefe1c53e4	2761	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	2762	#if _USE_LFN
AdamGreen	0:6ceefe1c53e4	2763	fno.lfname = path;
AdamGreen	0:6ceefe1c53e4	2764	fno.lfsize = i;
AdamGreen	0:6ceefe1c53e4	2765	#endif
AdamGreen	0:6ceefe1c53e4	2766	get_fileinfo(&dj, &fno); /* Get the dir name and push it to the buffer */
AdamGreen	0:6ceefe1c53e4	2767	tp = fno.fname;
AdamGreen	0:6ceefe1c53e4	2768	if (_USE_LFN && *path) tp = path;
AdamGreen	0:6ceefe1c53e4	2769	for (n = 0; tp[n]; n++) ;
AdamGreen	0:6ceefe1c53e4	2770	if (i < n + 3) {
AdamGreen	0:6ceefe1c53e4	2771	res = FR_NOT_ENOUGH_CORE; break;
AdamGreen	0:6ceefe1c53e4	2772	}
AdamGreen	0:6ceefe1c53e4	2773	while (n) path[--i] = tp[--n];
AdamGreen	0:6ceefe1c53e4	2774	path[--i] = '/';
AdamGreen	0:6ceefe1c53e4	2775	}
AdamGreen	0:6ceefe1c53e4	2776	tp = path;
AdamGreen	0:6ceefe1c53e4	2777	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	2778	tp++ = '0' + CurrVol; / Put drive number */
AdamGreen	0:6ceefe1c53e4	2779	*tp++ = ':';
AdamGreen	0:6ceefe1c53e4	2780	if (i == sz_path) { /* Root-dir */
AdamGreen	0:6ceefe1c53e4	2781	*tp++ = '/';
AdamGreen	0:6ceefe1c53e4	2782	} else { /* Sub-dir */
AdamGreen	0:6ceefe1c53e4	2783	do /* Add stacked path str */
AdamGreen	0:6ceefe1c53e4	2784	*tp++ = path[i++];
AdamGreen	0:6ceefe1c53e4	2785	while (i < sz_path);
AdamGreen	0:6ceefe1c53e4	2786	}
AdamGreen	0:6ceefe1c53e4	2787	}
AdamGreen	0:6ceefe1c53e4	2788	*tp = 0;
AdamGreen	0:6ceefe1c53e4	2789	FREE_BUF();
AdamGreen	0:6ceefe1c53e4	2790	}
AdamGreen	0:6ceefe1c53e4	2791
AdamGreen	0:6ceefe1c53e4	2792	LEAVE_FF(dj.fs, res);
AdamGreen	0:6ceefe1c53e4	2793	}
AdamGreen	0:6ceefe1c53e4	2794	#endif /* _FS_RPATH >= 2 */
AdamGreen	0:6ceefe1c53e4	2795	#endif /* _FS_RPATH >= 1 */
AdamGreen	0:6ceefe1c53e4	2796
AdamGreen	0:6ceefe1c53e4	2797
AdamGreen	0:6ceefe1c53e4	2798
AdamGreen	0:6ceefe1c53e4	2799	#if _FS_MINIMIZE <= 2
AdamGreen	0:6ceefe1c53e4	2800	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2801	/* Seek File R/W Pointer */
AdamGreen	0:6ceefe1c53e4	2802	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2803
AdamGreen	0:6ceefe1c53e4	2804	FRESULT f_lseek (
AdamGreen	0:6ceefe1c53e4	2805	FIL fp, / Pointer to the file object */
AdamGreen	0:6ceefe1c53e4	2806	DWORD ofs /* File pointer from top of file */
AdamGreen	0:6ceefe1c53e4	2807	)
AdamGreen	0:6ceefe1c53e4	2808	{
AdamGreen	0:6ceefe1c53e4	2809	FRESULT res;
AdamGreen	0:6ceefe1c53e4	2810
AdamGreen	0:6ceefe1c53e4	2811
AdamGreen	0:6ceefe1c53e4	2812	res = validate(fp->fs, fp->id); /* Check validity of the object */
AdamGreen	0:6ceefe1c53e4	2813	if (res != FR_OK) LEAVE_FF(fp->fs, res);
AdamGreen	0:6ceefe1c53e4	2814	if (fp->flag & FA__ERROR) /* Check abort flag */
AdamGreen	0:6ceefe1c53e4	2815	LEAVE_FF(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	2816
AdamGreen	0:6ceefe1c53e4	2817	#if _USE_FASTSEEK
AdamGreen	0:6ceefe1c53e4	2818	if (fp->cltbl) { /* Fast seek */
AdamGreen	0:6ceefe1c53e4	2819	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
AdamGreen	0:6ceefe1c53e4	2820
AdamGreen	0:6ceefe1c53e4	2821	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
AdamGreen	0:6ceefe1c53e4	2822	tbl = fp->cltbl;
AdamGreen	0:6ceefe1c53e4	2823	tlen = tbl++; ulen = 2; / Given table size and required table size */
AdamGreen	0:6ceefe1c53e4	2824	cl = fp->sclust; /* Top of the chain */
AdamGreen	0:6ceefe1c53e4	2825	if (cl) {
AdamGreen	0:6ceefe1c53e4	2826	do {
AdamGreen	0:6ceefe1c53e4	2827	/* Get a fragment */
AdamGreen	0:6ceefe1c53e4	2828	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
AdamGreen	0:6ceefe1c53e4	2829	do {
AdamGreen	0:6ceefe1c53e4	2830	pcl = cl; ncl++;
AdamGreen	0:6ceefe1c53e4	2831	cl = get_fat(fp->fs, cl);
AdamGreen	0:6ceefe1c53e4	2832	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	2833	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2834	} while (cl == pcl + 1);
AdamGreen	0:6ceefe1c53e4	2835	if (ulen <= tlen) { /* Store the length and top of the fragment */
AdamGreen	0:6ceefe1c53e4	2836	tbl++ = ncl; tbl++ = tcl;
AdamGreen	0:6ceefe1c53e4	2837	}
AdamGreen	0:6ceefe1c53e4	2838	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
AdamGreen	0:6ceefe1c53e4	2839	}
AdamGreen	0:6ceefe1c53e4	2840	fp->cltbl = ulen; / Number of items used */
AdamGreen	0:6ceefe1c53e4	2841	if (ulen <= tlen)
AdamGreen	0:6ceefe1c53e4	2842	tbl = 0; / Terminate table */
AdamGreen	0:6ceefe1c53e4	2843	else
AdamGreen	0:6ceefe1c53e4	2844	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
AdamGreen	0:6ceefe1c53e4	2845
AdamGreen	0:6ceefe1c53e4	2846	} else { /* Fast seek */
AdamGreen	0:6ceefe1c53e4	2847	if (ofs > fp->fsize) /* Clip offset at the file size */
AdamGreen	0:6ceefe1c53e4	2848	ofs = fp->fsize;
AdamGreen	0:6ceefe1c53e4	2849	fp->fptr = ofs; /* Set file pointer */
AdamGreen	0:6ceefe1c53e4	2850	if (ofs) {
AdamGreen	0:6ceefe1c53e4	2851	fp->clust = clmt_clust(fp, ofs - 1);
AdamGreen	0:6ceefe1c53e4	2852	dsc = clust2sect(fp->fs, fp->clust);
AdamGreen	0:6ceefe1c53e4	2853	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	2854	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
AdamGreen	0:6ceefe1c53e4	2855	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
AdamGreen	0:6ceefe1c53e4	2856	#if !_FS_TINY
AdamGreen	0:6ceefe1c53e4	2857	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	2858	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
AdamGreen	0:6ceefe1c53e4	2859	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
AdamGreen	0:6ceefe1c53e4	2860	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2861	fp->flag &= ~FA__DIRTY;
AdamGreen	0:6ceefe1c53e4	2862	}
AdamGreen	0:6ceefe1c53e4	2863	#endif
AdamGreen	0:6ceefe1c53e4	2864	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
AdamGreen	0:6ceefe1c53e4	2865	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2866	#endif
AdamGreen	0:6ceefe1c53e4	2867	fp->dsect = dsc;
AdamGreen	0:6ceefe1c53e4	2868	}
AdamGreen	0:6ceefe1c53e4	2869	}
AdamGreen	0:6ceefe1c53e4	2870	}
AdamGreen	0:6ceefe1c53e4	2871	} else
AdamGreen	0:6ceefe1c53e4	2872	#endif
AdamGreen	0:6ceefe1c53e4	2873
AdamGreen	0:6ceefe1c53e4	2874	/* Normal Seek */
AdamGreen	0:6ceefe1c53e4	2875	{
AdamGreen	0:6ceefe1c53e4	2876	DWORD clst, bcs, nsect, ifptr;
AdamGreen	0:6ceefe1c53e4	2877
AdamGreen	0:6ceefe1c53e4	2878	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
AdamGreen	0:6ceefe1c53e4	2879	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	2880	&& !(fp->flag & FA_WRITE)
AdamGreen	0:6ceefe1c53e4	2881	#endif
AdamGreen	0:6ceefe1c53e4	2882	) ofs = fp->fsize;
AdamGreen	0:6ceefe1c53e4	2883
AdamGreen	0:6ceefe1c53e4	2884	ifptr = fp->fptr;
AdamGreen	0:6ceefe1c53e4	2885	fp->fptr = nsect = 0;
AdamGreen	0:6ceefe1c53e4	2886	if (ofs) {
AdamGreen	0:6ceefe1c53e4	2887	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
AdamGreen	0:6ceefe1c53e4	2888	if (ifptr > 0 &&
AdamGreen	0:6ceefe1c53e4	2889	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
AdamGreen	0:6ceefe1c53e4	2890	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
AdamGreen	0:6ceefe1c53e4	2891	ofs -= fp->fptr;
AdamGreen	0:6ceefe1c53e4	2892	clst = fp->clust;
AdamGreen	0:6ceefe1c53e4	2893	} else { /* When seek to back cluster, */
AdamGreen	0:6ceefe1c53e4	2894	clst = fp->sclust; /* start from the first cluster */
AdamGreen	0:6ceefe1c53e4	2895	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	2896	if (clst == 0) { /* If no cluster chain, create a new chain */
AdamGreen	0:6ceefe1c53e4	2897	clst = create_chain(fp->fs, 0);
AdamGreen	0:6ceefe1c53e4	2898	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	2899	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2900	fp->sclust = clst;
AdamGreen	0:6ceefe1c53e4	2901	}
AdamGreen	0:6ceefe1c53e4	2902	#endif
AdamGreen	0:6ceefe1c53e4	2903	fp->clust = clst;
AdamGreen	0:6ceefe1c53e4	2904	}
AdamGreen	0:6ceefe1c53e4	2905	if (clst != 0) {
AdamGreen	0:6ceefe1c53e4	2906	while (ofs > bcs) { /* Cluster following loop */
AdamGreen	0:6ceefe1c53e4	2907	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	2908	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
AdamGreen	0:6ceefe1c53e4	2909	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
AdamGreen	0:6ceefe1c53e4	2910	if (clst == 0) { /* When disk gets full, clip file size */
AdamGreen	0:6ceefe1c53e4	2911	ofs = bcs; break;
AdamGreen	0:6ceefe1c53e4	2912	}
AdamGreen	0:6ceefe1c53e4	2913	} else
AdamGreen	0:6ceefe1c53e4	2914	#endif
AdamGreen	0:6ceefe1c53e4	2915	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
AdamGreen	0:6ceefe1c53e4	2916	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2917	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	2918	fp->clust = clst;
AdamGreen	0:6ceefe1c53e4	2919	fp->fptr += bcs;
AdamGreen	0:6ceefe1c53e4	2920	ofs -= bcs;
AdamGreen	0:6ceefe1c53e4	2921	}
AdamGreen	0:6ceefe1c53e4	2922	fp->fptr += ofs;
AdamGreen	0:6ceefe1c53e4	2923	if (ofs % SS(fp->fs)) {
AdamGreen	0:6ceefe1c53e4	2924	nsect = clust2sect(fp->fs, clst); /* Current sector */
AdamGreen	0:6ceefe1c53e4	2925	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	2926	nsect += ofs / SS(fp->fs);
AdamGreen	0:6ceefe1c53e4	2927	}
AdamGreen	0:6ceefe1c53e4	2928	}
AdamGreen	0:6ceefe1c53e4	2929	}
AdamGreen	0:6ceefe1c53e4	2930	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
AdamGreen	0:6ceefe1c53e4	2931	#if !_FS_TINY
AdamGreen	0:6ceefe1c53e4	2932	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	2933	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
AdamGreen	0:6ceefe1c53e4	2934	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
AdamGreen	0:6ceefe1c53e4	2935	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2936	fp->flag &= ~FA__DIRTY;
AdamGreen	0:6ceefe1c53e4	2937	}
AdamGreen	0:6ceefe1c53e4	2938	#endif
AdamGreen	0:6ceefe1c53e4	2939	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
AdamGreen	0:6ceefe1c53e4	2940	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	2941	#endif
AdamGreen	0:6ceefe1c53e4	2942	fp->dsect = nsect;
AdamGreen	0:6ceefe1c53e4	2943	}
AdamGreen	0:6ceefe1c53e4	2944	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	2945	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
AdamGreen	0:6ceefe1c53e4	2946	fp->fsize = fp->fptr;
AdamGreen	0:6ceefe1c53e4	2947	fp->flag \|= FA__WRITTEN;
AdamGreen	0:6ceefe1c53e4	2948	}
AdamGreen	0:6ceefe1c53e4	2949	#endif
AdamGreen	0:6ceefe1c53e4	2950	}
AdamGreen	0:6ceefe1c53e4	2951
AdamGreen	0:6ceefe1c53e4	2952	LEAVE_FF(fp->fs, res);
AdamGreen	0:6ceefe1c53e4	2953	}
AdamGreen	0:6ceefe1c53e4	2954
AdamGreen	0:6ceefe1c53e4	2955
AdamGreen	0:6ceefe1c53e4	2956
AdamGreen	0:6ceefe1c53e4	2957	#if _FS_MINIMIZE <= 1
AdamGreen	0:6ceefe1c53e4	2958	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2959	/* Create a Directroy Object */
AdamGreen	0:6ceefe1c53e4	2960	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2961
AdamGreen	0:6ceefe1c53e4	2962	FRESULT f_opendir (
AdamGreen	0:6ceefe1c53e4	2963	FATFS_DIR dj, / Pointer to directory object to create */
AdamGreen	0:6ceefe1c53e4	2964	const TCHAR path / Pointer to the directory path */
AdamGreen	0:6ceefe1c53e4	2965	)
AdamGreen	0:6ceefe1c53e4	2966	{
AdamGreen	0:6ceefe1c53e4	2967	FRESULT res;
AdamGreen	0:6ceefe1c53e4	2968	DEF_NAMEBUF;
AdamGreen	0:6ceefe1c53e4	2969
AdamGreen	0:6ceefe1c53e4	2970
AdamGreen	0:6ceefe1c53e4	2971	res = chk_mounted(&path, &dj->fs, 0);
AdamGreen	0:6ceefe1c53e4	2972	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	2973	INIT_BUF(*dj);
AdamGreen	0:6ceefe1c53e4	2974	res = follow_path(dj, path); /* Follow the path to the directory */
AdamGreen	0:6ceefe1c53e4	2975	FREE_BUF();
AdamGreen	0:6ceefe1c53e4	2976	if (res == FR_OK) { /* Follow completed */
AdamGreen	0:6ceefe1c53e4	2977	if (dj->dir) { /* It is not the root dir */
AdamGreen	0:6ceefe1c53e4	2978	if (dj->dir[DIR_Attr] & AM_DIR) { /* The object is a directory */
AdamGreen	0:6ceefe1c53e4	2979	dj->sclust = LD_CLUST(dj->dir);
AdamGreen	0:6ceefe1c53e4	2980	} else { /* The object is not a directory */
AdamGreen	0:6ceefe1c53e4	2981	res = FR_NO_PATH;
AdamGreen	0:6ceefe1c53e4	2982	}
AdamGreen	0:6ceefe1c53e4	2983	}
AdamGreen	0:6ceefe1c53e4	2984	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	2985	dj->id = dj->fs->id;
AdamGreen	0:6ceefe1c53e4	2986	res = dir_sdi(dj, 0); /* Rewind dir */
AdamGreen	0:6ceefe1c53e4	2987	}
AdamGreen	0:6ceefe1c53e4	2988	}
AdamGreen	0:6ceefe1c53e4	2989	if (res == FR_NO_FILE) res = FR_NO_PATH;
AdamGreen	0:6ceefe1c53e4	2990	}
AdamGreen	0:6ceefe1c53e4	2991
AdamGreen	0:6ceefe1c53e4	2992	LEAVE_FF(dj->fs, res);
AdamGreen	0:6ceefe1c53e4	2993	}
AdamGreen	0:6ceefe1c53e4	2994
AdamGreen	0:6ceefe1c53e4	2995
AdamGreen	0:6ceefe1c53e4	2996
AdamGreen	0:6ceefe1c53e4	2997
AdamGreen	0:6ceefe1c53e4	2998	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	2999	/* Read Directory Entry in Sequense */
AdamGreen	0:6ceefe1c53e4	3000	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3001
AdamGreen	0:6ceefe1c53e4	3002	FRESULT f_readdir (
AdamGreen	0:6ceefe1c53e4	3003	FATFS_DIR dj, / Pointer to the open directory object */
AdamGreen	0:6ceefe1c53e4	3004	FILINFO fno / Pointer to file information to return */
AdamGreen	0:6ceefe1c53e4	3005	)
AdamGreen	0:6ceefe1c53e4	3006	{
AdamGreen	0:6ceefe1c53e4	3007	FRESULT res;
AdamGreen	0:6ceefe1c53e4	3008	DEF_NAMEBUF;
AdamGreen	0:6ceefe1c53e4	3009
AdamGreen	0:6ceefe1c53e4	3010
AdamGreen	0:6ceefe1c53e4	3011	res = validate(dj->fs, dj->id); /* Check validity of the object */
AdamGreen	0:6ceefe1c53e4	3012	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3013	if (!fno) {
AdamGreen	0:6ceefe1c53e4	3014	res = dir_sdi(dj, 0); /* Rewind the directory object */
AdamGreen	0:6ceefe1c53e4	3015	} else {
AdamGreen	0:6ceefe1c53e4	3016	INIT_BUF(*dj);
AdamGreen	0:6ceefe1c53e4	3017	res = dir_read(dj); /* Read an directory item */
AdamGreen	0:6ceefe1c53e4	3018	if (res == FR_NO_FILE) { /* Reached end of dir */
AdamGreen	0:6ceefe1c53e4	3019	dj->sect = 0;
AdamGreen	0:6ceefe1c53e4	3020	res = FR_OK;
AdamGreen	0:6ceefe1c53e4	3021	}
AdamGreen	0:6ceefe1c53e4	3022	if (res == FR_OK) { /* A valid entry is found */
AdamGreen	0:6ceefe1c53e4	3023	get_fileinfo(dj, fno); /* Get the object information */
AdamGreen	0:6ceefe1c53e4	3024	res = dir_next(dj, 0); /* Increment index for next */
AdamGreen	0:6ceefe1c53e4	3025	if (res == FR_NO_FILE) {
AdamGreen	0:6ceefe1c53e4	3026	dj->sect = 0;
AdamGreen	0:6ceefe1c53e4	3027	res = FR_OK;
AdamGreen	0:6ceefe1c53e4	3028	}
AdamGreen	0:6ceefe1c53e4	3029	}
AdamGreen	0:6ceefe1c53e4	3030	FREE_BUF();
AdamGreen	0:6ceefe1c53e4	3031	}
AdamGreen	0:6ceefe1c53e4	3032	}
AdamGreen	0:6ceefe1c53e4	3033
AdamGreen	0:6ceefe1c53e4	3034	LEAVE_FF(dj->fs, res);
AdamGreen	0:6ceefe1c53e4	3035	}
AdamGreen	0:6ceefe1c53e4	3036
AdamGreen	0:6ceefe1c53e4	3037
AdamGreen	0:6ceefe1c53e4	3038
AdamGreen	0:6ceefe1c53e4	3039	#if _FS_MINIMIZE == 0
AdamGreen	0:6ceefe1c53e4	3040	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3041	/* Get File Status */
AdamGreen	0:6ceefe1c53e4	3042	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3043
AdamGreen	0:6ceefe1c53e4	3044	FRESULT f_stat (
AdamGreen	0:6ceefe1c53e4	3045	const TCHAR path, / Pointer to the file path */
AdamGreen	0:6ceefe1c53e4	3046	FILINFO fno / Pointer to file information to return */
AdamGreen	0:6ceefe1c53e4	3047	)
AdamGreen	0:6ceefe1c53e4	3048	{
AdamGreen	0:6ceefe1c53e4	3049	FRESULT res;
AdamGreen	0:6ceefe1c53e4	3050	FATFS_DIR dj;
AdamGreen	0:6ceefe1c53e4	3051	DEF_NAMEBUF;
AdamGreen	0:6ceefe1c53e4	3052
AdamGreen	0:6ceefe1c53e4	3053
AdamGreen	0:6ceefe1c53e4	3054	res = chk_mounted(&path, &dj.fs, 0);
AdamGreen	0:6ceefe1c53e4	3055	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3056	INIT_BUF(dj);
AdamGreen	0:6ceefe1c53e4	3057	res = follow_path(&dj, path); /* Follow the file path */
AdamGreen	0:6ceefe1c53e4	3058	if (res == FR_OK) { /* Follow completed */
AdamGreen	0:6ceefe1c53e4	3059	if (dj.dir) /* Found an object */
AdamGreen	0:6ceefe1c53e4	3060	get_fileinfo(&dj, fno);
AdamGreen	0:6ceefe1c53e4	3061	else /* It is root dir */
AdamGreen	0:6ceefe1c53e4	3062	res = FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	3063	}
AdamGreen	0:6ceefe1c53e4	3064	FREE_BUF();
AdamGreen	0:6ceefe1c53e4	3065	}
AdamGreen	0:6ceefe1c53e4	3066
AdamGreen	0:6ceefe1c53e4	3067	LEAVE_FF(dj.fs, res);
AdamGreen	0:6ceefe1c53e4	3068	}
AdamGreen	0:6ceefe1c53e4	3069
AdamGreen	0:6ceefe1c53e4	3070
AdamGreen	0:6ceefe1c53e4	3071
AdamGreen	0:6ceefe1c53e4	3072	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	3073	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3074	/* Get Number of Free Clusters */
AdamGreen	0:6ceefe1c53e4	3075	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3076
AdamGreen	0:6ceefe1c53e4	3077	FRESULT f_getfree (
AdamGreen	0:6ceefe1c53e4	3078	const TCHAR path, / Pointer to the logical drive number (root dir) */
AdamGreen	0:6ceefe1c53e4	3079	DWORD nclst, / Pointer to the variable to return number of free clusters */
AdamGreen	0:6ceefe1c53e4	3080	FATFS *fatfs / Pointer to pointer to corresponding file system object to return */
AdamGreen	0:6ceefe1c53e4	3081	)
AdamGreen	0:6ceefe1c53e4	3082	{
AdamGreen	0:6ceefe1c53e4	3083	FRESULT res;
AdamGreen	0:6ceefe1c53e4	3084	DWORD n, clst, sect, stat;
AdamGreen	0:6ceefe1c53e4	3085	UINT i;
AdamGreen	0:6ceefe1c53e4	3086	BYTE fat, *p;
AdamGreen	0:6ceefe1c53e4	3087
AdamGreen	0:6ceefe1c53e4	3088
AdamGreen	0:6ceefe1c53e4	3089	/* Get drive number */
AdamGreen	0:6ceefe1c53e4	3090	res = chk_mounted(&path, fatfs, 0);
AdamGreen	0:6ceefe1c53e4	3091	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3092	/* If free_clust is valid, return it without full cluster scan */
AdamGreen	0:6ceefe1c53e4	3093	if ((fatfs)->free_clust <= (fatfs)->n_fatent - 2) {
AdamGreen	0:6ceefe1c53e4	3094	nclst = (fatfs)->free_clust;
AdamGreen	0:6ceefe1c53e4	3095	} else {
AdamGreen	0:6ceefe1c53e4	3096	/* Get number of free clusters */
AdamGreen	0:6ceefe1c53e4	3097	fat = (*fatfs)->fs_type;
AdamGreen	0:6ceefe1c53e4	3098	n = 0;
AdamGreen	0:6ceefe1c53e4	3099	if (fat == FS_FAT12) {
AdamGreen	0:6ceefe1c53e4	3100	clst = 2;
AdamGreen	0:6ceefe1c53e4	3101	do {
AdamGreen	0:6ceefe1c53e4	3102	stat = get_fat(*fatfs, clst);
AdamGreen	0:6ceefe1c53e4	3103	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
AdamGreen	0:6ceefe1c53e4	3104	if (stat == 1) { res = FR_INT_ERR; break; }
AdamGreen	0:6ceefe1c53e4	3105	if (stat == 0) n++;
AdamGreen	0:6ceefe1c53e4	3106	} while (++clst < (*fatfs)->n_fatent);
AdamGreen	0:6ceefe1c53e4	3107	} else {
AdamGreen	0:6ceefe1c53e4	3108	clst = (*fatfs)->n_fatent;
AdamGreen	0:6ceefe1c53e4	3109	sect = (*fatfs)->fatbase;
AdamGreen	0:6ceefe1c53e4	3110	i = 0; p = 0;
AdamGreen	0:6ceefe1c53e4	3111	do {
AdamGreen	0:6ceefe1c53e4	3112	if (!i) {
AdamGreen	0:6ceefe1c53e4	3113	res = move_window(*fatfs, sect++);
AdamGreen	0:6ceefe1c53e4	3114	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	3115	p = (*fatfs)->win;
AdamGreen	0:6ceefe1c53e4	3116	i = SS(*fatfs);
AdamGreen	0:6ceefe1c53e4	3117	}
AdamGreen	0:6ceefe1c53e4	3118	if (fat == FS_FAT16) {
AdamGreen	0:6ceefe1c53e4	3119	if (LD_WORD(p) == 0) n++;
AdamGreen	0:6ceefe1c53e4	3120	p += 2; i -= 2;
AdamGreen	0:6ceefe1c53e4	3121	} else {
AdamGreen	0:6ceefe1c53e4	3122	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
AdamGreen	0:6ceefe1c53e4	3123	p += 4; i -= 4;
AdamGreen	0:6ceefe1c53e4	3124	}
AdamGreen	0:6ceefe1c53e4	3125	} while (--clst);
AdamGreen	0:6ceefe1c53e4	3126	}
AdamGreen	0:6ceefe1c53e4	3127	(*fatfs)->free_clust = n;
AdamGreen	0:6ceefe1c53e4	3128	if (fat == FS_FAT32) (*fatfs)->fsi_flag = 1;
AdamGreen	0:6ceefe1c53e4	3129	*nclst = n;
AdamGreen	0:6ceefe1c53e4	3130	}
AdamGreen	0:6ceefe1c53e4	3131	}
AdamGreen	0:6ceefe1c53e4	3132	LEAVE_FF(*fatfs, res);
AdamGreen	0:6ceefe1c53e4	3133	}
AdamGreen	0:6ceefe1c53e4	3134
AdamGreen	0:6ceefe1c53e4	3135
AdamGreen	0:6ceefe1c53e4	3136
AdamGreen	0:6ceefe1c53e4	3137
AdamGreen	0:6ceefe1c53e4	3138	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3139	/* Truncate File */
AdamGreen	0:6ceefe1c53e4	3140	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3141
AdamGreen	0:6ceefe1c53e4	3142	FRESULT f_truncate (
AdamGreen	0:6ceefe1c53e4	3143	FIL fp / Pointer to the file object */
AdamGreen	0:6ceefe1c53e4	3144	)
AdamGreen	0:6ceefe1c53e4	3145	{
AdamGreen	0:6ceefe1c53e4	3146	FRESULT res;
AdamGreen	0:6ceefe1c53e4	3147	DWORD ncl;
AdamGreen	0:6ceefe1c53e4	3148
AdamGreen	0:6ceefe1c53e4	3149
AdamGreen	0:6ceefe1c53e4	3150	res = validate(fp->fs, fp->id); /* Check validity of the object */
AdamGreen	0:6ceefe1c53e4	3151	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3152	if (fp->flag & FA__ERROR) { /* Check abort flag */
AdamGreen	0:6ceefe1c53e4	3153	res = FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	3154	} else {
AdamGreen	0:6ceefe1c53e4	3155	if (!(fp->flag & FA_WRITE)) /* Check access mode */
AdamGreen	0:6ceefe1c53e4	3156	res = FR_DENIED;
AdamGreen	0:6ceefe1c53e4	3157	}
AdamGreen	0:6ceefe1c53e4	3158	}
AdamGreen	0:6ceefe1c53e4	3159	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3160	if (fp->fsize > fp->fptr) {
AdamGreen	0:6ceefe1c53e4	3161	fp->fsize = fp->fptr; /* Set file size to current R/W point */
AdamGreen	0:6ceefe1c53e4	3162	fp->flag \|= FA__WRITTEN;
AdamGreen	0:6ceefe1c53e4	3163	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
AdamGreen	0:6ceefe1c53e4	3164	res = remove_chain(fp->fs, fp->sclust);
AdamGreen	0:6ceefe1c53e4	3165	fp->sclust = 0;
AdamGreen	0:6ceefe1c53e4	3166	} else { /* When truncate a part of the file, remove remaining clusters */
AdamGreen	0:6ceefe1c53e4	3167	ncl = get_fat(fp->fs, fp->clust);
AdamGreen	0:6ceefe1c53e4	3168	res = FR_OK;
AdamGreen	0:6ceefe1c53e4	3169	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	3170	if (ncl == 1) res = FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	3171	if (res == FR_OK && ncl < fp->fs->n_fatent) {
AdamGreen	0:6ceefe1c53e4	3172	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
AdamGreen	0:6ceefe1c53e4	3173	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
AdamGreen	0:6ceefe1c53e4	3174	}
AdamGreen	0:6ceefe1c53e4	3175	}
AdamGreen	0:6ceefe1c53e4	3176	}
AdamGreen	0:6ceefe1c53e4	3177	if (res != FR_OK) fp->flag \|= FA__ERROR;
AdamGreen	0:6ceefe1c53e4	3178	}
AdamGreen	0:6ceefe1c53e4	3179
AdamGreen	0:6ceefe1c53e4	3180	LEAVE_FF(fp->fs, res);
AdamGreen	0:6ceefe1c53e4	3181	}
AdamGreen	0:6ceefe1c53e4	3182
AdamGreen	0:6ceefe1c53e4	3183
AdamGreen	0:6ceefe1c53e4	3184
AdamGreen	0:6ceefe1c53e4	3185
AdamGreen	0:6ceefe1c53e4	3186	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3187	/* Delete a File or Directory */
AdamGreen	0:6ceefe1c53e4	3188	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3189
AdamGreen	0:6ceefe1c53e4	3190	FRESULT f_unlink (
AdamGreen	0:6ceefe1c53e4	3191	const TCHAR path / Pointer to the file or directory path */
AdamGreen	0:6ceefe1c53e4	3192	)
AdamGreen	0:6ceefe1c53e4	3193	{
AdamGreen	0:6ceefe1c53e4	3194	FRESULT res;
AdamGreen	0:6ceefe1c53e4	3195	FATFS_DIR dj, sdj;
AdamGreen	0:6ceefe1c53e4	3196	BYTE *dir;
AdamGreen	0:6ceefe1c53e4	3197	DWORD dclst;
AdamGreen	0:6ceefe1c53e4	3198	DEF_NAMEBUF;
AdamGreen	0:6ceefe1c53e4	3199
AdamGreen	0:6ceefe1c53e4	3200
AdamGreen	0:6ceefe1c53e4	3201	res = chk_mounted(&path, &dj.fs, 1);
AdamGreen	0:6ceefe1c53e4	3202	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3203	INIT_BUF(dj);
AdamGreen	0:6ceefe1c53e4	3204	res = follow_path(&dj, path); /* Follow the file path */
AdamGreen	0:6ceefe1c53e4	3205	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
AdamGreen	0:6ceefe1c53e4	3206	res = FR_INVALID_NAME; /* Cannot remove dot entry */
AdamGreen	0:6ceefe1c53e4	3207	#if _FS_SHARE
AdamGreen	0:6ceefe1c53e4	3208	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open file */
AdamGreen	0:6ceefe1c53e4	3209	#endif
AdamGreen	0:6ceefe1c53e4	3210	if (res == FR_OK) { /* The object is accessible */
AdamGreen	0:6ceefe1c53e4	3211	dir = dj.dir;
AdamGreen	0:6ceefe1c53e4	3212	if (!dir) {
AdamGreen	0:6ceefe1c53e4	3213	res = FR_INVALID_NAME; /* Cannot remove the start directory */
AdamGreen	0:6ceefe1c53e4	3214	} else {
AdamGreen	0:6ceefe1c53e4	3215	if (dir[DIR_Attr] & AM_RDO)
AdamGreen	0:6ceefe1c53e4	3216	res = FR_DENIED; /* Cannot remove R/O object */
AdamGreen	0:6ceefe1c53e4	3217	}
AdamGreen	0:6ceefe1c53e4	3218	dclst = LD_CLUST(dir);
AdamGreen	0:6ceefe1c53e4	3219	if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-dir? */
AdamGreen	0:6ceefe1c53e4	3220	if (dclst < 2) {
AdamGreen	0:6ceefe1c53e4	3221	res = FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	3222	} else {
AdamGreen	0:6ceefe1c53e4	3223	mem_cpy(&sdj, &dj, sizeof(FATFS_DIR)); /* Check if the sub-dir is empty or not */
AdamGreen	0:6ceefe1c53e4	3224	sdj.sclust = dclst;
AdamGreen	0:6ceefe1c53e4	3225	res = dir_sdi(&sdj, 2); /* Exclude dot entries */
AdamGreen	0:6ceefe1c53e4	3226	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3227	res = dir_read(&sdj);
AdamGreen	0:6ceefe1c53e4	3228	if (res == FR_OK /* Not empty dir */
AdamGreen	0:6ceefe1c53e4	3229	#if _FS_RPATH
AdamGreen	0:6ceefe1c53e4	3230	\|\| dclst == sdj.fs->cdir /* Current dir */
AdamGreen	0:6ceefe1c53e4	3231	#endif
AdamGreen	0:6ceefe1c53e4	3232	) res = FR_DENIED;
AdamGreen	0:6ceefe1c53e4	3233	if (res == FR_NO_FILE) res = FR_OK; /* Empty */
AdamGreen	0:6ceefe1c53e4	3234	}
AdamGreen	0:6ceefe1c53e4	3235	}
AdamGreen	0:6ceefe1c53e4	3236	}
AdamGreen	0:6ceefe1c53e4	3237	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3238	res = dir_remove(&dj); /* Remove the directory entry */
AdamGreen	0:6ceefe1c53e4	3239	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3240	if (dclst) /* Remove the cluster chain if exist */
AdamGreen	0:6ceefe1c53e4	3241	res = remove_chain(dj.fs, dclst);
AdamGreen	0:6ceefe1c53e4	3242	if (res == FR_OK) res = sync(dj.fs);
AdamGreen	0:6ceefe1c53e4	3243	}
AdamGreen	0:6ceefe1c53e4	3244	}
AdamGreen	0:6ceefe1c53e4	3245	}
AdamGreen	0:6ceefe1c53e4	3246	FREE_BUF();
AdamGreen	0:6ceefe1c53e4	3247	}
AdamGreen	0:6ceefe1c53e4	3248	LEAVE_FF(dj.fs, res);
AdamGreen	0:6ceefe1c53e4	3249	}
AdamGreen	0:6ceefe1c53e4	3250
AdamGreen	0:6ceefe1c53e4	3251
AdamGreen	0:6ceefe1c53e4	3252
AdamGreen	0:6ceefe1c53e4	3253
AdamGreen	0:6ceefe1c53e4	3254	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3255	/* Create a Directory */
AdamGreen	0:6ceefe1c53e4	3256	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3257
AdamGreen	0:6ceefe1c53e4	3258	FRESULT f_mkdir (
AdamGreen	0:6ceefe1c53e4	3259	const TCHAR path / Pointer to the directory path */
AdamGreen	0:6ceefe1c53e4	3260	)
AdamGreen	0:6ceefe1c53e4	3261	{
AdamGreen	0:6ceefe1c53e4	3262	FRESULT res;
AdamGreen	0:6ceefe1c53e4	3263	FATFS_DIR dj;
AdamGreen	0:6ceefe1c53e4	3264	BYTE *dir, n;
AdamGreen	0:6ceefe1c53e4	3265	DWORD dsc, dcl, pcl, tim = get_fattime();
AdamGreen	0:6ceefe1c53e4	3266	DEF_NAMEBUF;
AdamGreen	0:6ceefe1c53e4	3267
AdamGreen	0:6ceefe1c53e4	3268
AdamGreen	0:6ceefe1c53e4	3269	res = chk_mounted(&path, &dj.fs, 1);
AdamGreen	0:6ceefe1c53e4	3270	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3271	INIT_BUF(dj);
AdamGreen	0:6ceefe1c53e4	3272	res = follow_path(&dj, path); /* Follow the file path */
AdamGreen	0:6ceefe1c53e4	3273	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
AdamGreen	0:6ceefe1c53e4	3274	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
AdamGreen	0:6ceefe1c53e4	3275	res = FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	3276	if (res == FR_NO_FILE) { /* Can create a new directory */
AdamGreen	0:6ceefe1c53e4	3277	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
AdamGreen	0:6ceefe1c53e4	3278	res = FR_OK;
AdamGreen	0:6ceefe1c53e4	3279	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
AdamGreen	0:6ceefe1c53e4	3280	if (dcl == 1) res = FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	3281	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	3282	if (res == FR_OK) /* Flush FAT */
AdamGreen	0:6ceefe1c53e4	3283	res = move_window(dj.fs, 0);
AdamGreen	0:6ceefe1c53e4	3284	if (res == FR_OK) { /* Initialize the new directory table */
AdamGreen	0:6ceefe1c53e4	3285	dsc = clust2sect(dj.fs, dcl);
AdamGreen	0:6ceefe1c53e4	3286	dir = dj.fs->win;
AdamGreen	0:6ceefe1c53e4	3287	mem_set(dir, 0, SS(dj.fs));
AdamGreen	0:6ceefe1c53e4	3288	mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */
AdamGreen	0:6ceefe1c53e4	3289	dir[DIR_Name] = '.';
AdamGreen	0:6ceefe1c53e4	3290	dir[DIR_Attr] = AM_DIR;
AdamGreen	0:6ceefe1c53e4	3291	ST_DWORD(dir+DIR_WrtTime, tim);
AdamGreen	0:6ceefe1c53e4	3292	ST_CLUST(dir, dcl);
AdamGreen	0:6ceefe1c53e4	3293	mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
AdamGreen	0:6ceefe1c53e4	3294	dir[33] = '.'; pcl = dj.sclust;
AdamGreen	0:6ceefe1c53e4	3295	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
AdamGreen	0:6ceefe1c53e4	3296	pcl = 0;
AdamGreen	0:6ceefe1c53e4	3297	ST_CLUST(dir+SZ_DIR, pcl);
AdamGreen	0:6ceefe1c53e4	3298	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
AdamGreen	0:6ceefe1c53e4	3299	dj.fs->winsect = dsc++;
AdamGreen	0:6ceefe1c53e4	3300	dj.fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	3301	res = move_window(dj.fs, 0);
AdamGreen	0:6ceefe1c53e4	3302	if (res != FR_OK) break;
AdamGreen	0:6ceefe1c53e4	3303	mem_set(dir, 0, SS(dj.fs));
AdamGreen	0:6ceefe1c53e4	3304	}
AdamGreen	0:6ceefe1c53e4	3305	}
AdamGreen	0:6ceefe1c53e4	3306	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
AdamGreen	0:6ceefe1c53e4	3307	if (res != FR_OK) {
AdamGreen	0:6ceefe1c53e4	3308	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
AdamGreen	0:6ceefe1c53e4	3309	} else {
AdamGreen	0:6ceefe1c53e4	3310	dir = dj.dir;
AdamGreen	0:6ceefe1c53e4	3311	dir[DIR_Attr] = AM_DIR; /* Attribute */
AdamGreen	0:6ceefe1c53e4	3312	ST_DWORD(dir+DIR_WrtTime, tim); /* Created time */
AdamGreen	0:6ceefe1c53e4	3313	ST_CLUST(dir, dcl); /* Table start cluster */
AdamGreen	0:6ceefe1c53e4	3314	dj.fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	3315	res = sync(dj.fs);
AdamGreen	0:6ceefe1c53e4	3316	}
AdamGreen	0:6ceefe1c53e4	3317	}
AdamGreen	0:6ceefe1c53e4	3318	FREE_BUF();
AdamGreen	0:6ceefe1c53e4	3319	}
AdamGreen	0:6ceefe1c53e4	3320
AdamGreen	0:6ceefe1c53e4	3321	LEAVE_FF(dj.fs, res);
AdamGreen	0:6ceefe1c53e4	3322	}
AdamGreen	0:6ceefe1c53e4	3323
AdamGreen	0:6ceefe1c53e4	3324
AdamGreen	0:6ceefe1c53e4	3325
AdamGreen	0:6ceefe1c53e4	3326
AdamGreen	0:6ceefe1c53e4	3327	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3328	/* Change Attribute */
AdamGreen	0:6ceefe1c53e4	3329	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3330
AdamGreen	0:6ceefe1c53e4	3331	FRESULT f_chmod (
AdamGreen	0:6ceefe1c53e4	3332	const TCHAR path, / Pointer to the file path */
AdamGreen	0:6ceefe1c53e4	3333	BYTE value, /* Attribute bits */
AdamGreen	0:6ceefe1c53e4	3334	BYTE mask /* Attribute mask to change */
AdamGreen	0:6ceefe1c53e4	3335	)
AdamGreen	0:6ceefe1c53e4	3336	{
AdamGreen	0:6ceefe1c53e4	3337	FRESULT res;
AdamGreen	0:6ceefe1c53e4	3338	FATFS_DIR dj;
AdamGreen	0:6ceefe1c53e4	3339	BYTE *dir;
AdamGreen	0:6ceefe1c53e4	3340	DEF_NAMEBUF;
AdamGreen	0:6ceefe1c53e4	3341
AdamGreen	0:6ceefe1c53e4	3342
AdamGreen	0:6ceefe1c53e4	3343	res = chk_mounted(&path, &dj.fs, 1);
AdamGreen	0:6ceefe1c53e4	3344	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3345	INIT_BUF(dj);
AdamGreen	0:6ceefe1c53e4	3346	res = follow_path(&dj, path); /* Follow the file path */
AdamGreen	0:6ceefe1c53e4	3347	FREE_BUF();
AdamGreen	0:6ceefe1c53e4	3348	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
AdamGreen	0:6ceefe1c53e4	3349	res = FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	3350	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3351	dir = dj.dir;
AdamGreen	0:6ceefe1c53e4	3352	if (!dir) { /* Is it a root directory? */
AdamGreen	0:6ceefe1c53e4	3353	res = FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	3354	} else { /* File or sub directory */
AdamGreen	0:6ceefe1c53e4	3355	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
AdamGreen	0:6ceefe1c53e4	3356	dir[DIR_Attr] = (value & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
AdamGreen	0:6ceefe1c53e4	3357	dj.fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	3358	res = sync(dj.fs);
AdamGreen	0:6ceefe1c53e4	3359	}
AdamGreen	0:6ceefe1c53e4	3360	}
AdamGreen	0:6ceefe1c53e4	3361	}
AdamGreen	0:6ceefe1c53e4	3362
AdamGreen	0:6ceefe1c53e4	3363	LEAVE_FF(dj.fs, res);
AdamGreen	0:6ceefe1c53e4	3364	}
AdamGreen	0:6ceefe1c53e4	3365
AdamGreen	0:6ceefe1c53e4	3366
AdamGreen	0:6ceefe1c53e4	3367
AdamGreen	0:6ceefe1c53e4	3368
AdamGreen	0:6ceefe1c53e4	3369	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3370	/* Change Timestamp */
AdamGreen	0:6ceefe1c53e4	3371	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3372
AdamGreen	0:6ceefe1c53e4	3373	FRESULT f_utime (
AdamGreen	0:6ceefe1c53e4	3374	const TCHAR path, / Pointer to the file/directory name */
AdamGreen	0:6ceefe1c53e4	3375	const FILINFO fno / Pointer to the time stamp to be set */
AdamGreen	0:6ceefe1c53e4	3376	)
AdamGreen	0:6ceefe1c53e4	3377	{
AdamGreen	0:6ceefe1c53e4	3378	FRESULT res;
AdamGreen	0:6ceefe1c53e4	3379	FATFS_DIR dj;
AdamGreen	0:6ceefe1c53e4	3380	BYTE *dir;
AdamGreen	0:6ceefe1c53e4	3381	DEF_NAMEBUF;
AdamGreen	0:6ceefe1c53e4	3382
AdamGreen	0:6ceefe1c53e4	3383
AdamGreen	0:6ceefe1c53e4	3384	res = chk_mounted(&path, &dj.fs, 1);
AdamGreen	0:6ceefe1c53e4	3385	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3386	INIT_BUF(dj);
AdamGreen	0:6ceefe1c53e4	3387	res = follow_path(&dj, path); /* Follow the file path */
AdamGreen	0:6ceefe1c53e4	3388	FREE_BUF();
AdamGreen	0:6ceefe1c53e4	3389	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
AdamGreen	0:6ceefe1c53e4	3390	res = FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	3391	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3392	dir = dj.dir;
AdamGreen	0:6ceefe1c53e4	3393	if (!dir) { /* Root directory */
AdamGreen	0:6ceefe1c53e4	3394	res = FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	3395	} else { /* File or sub-directory */
AdamGreen	0:6ceefe1c53e4	3396	ST_WORD(dir+DIR_WrtTime, fno->ftime);
AdamGreen	0:6ceefe1c53e4	3397	ST_WORD(dir+DIR_WrtDate, fno->fdate);
AdamGreen	0:6ceefe1c53e4	3398	dj.fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	3399	res = sync(dj.fs);
AdamGreen	0:6ceefe1c53e4	3400	}
AdamGreen	0:6ceefe1c53e4	3401	}
AdamGreen	0:6ceefe1c53e4	3402	}
AdamGreen	0:6ceefe1c53e4	3403
AdamGreen	0:6ceefe1c53e4	3404	LEAVE_FF(dj.fs, res);
AdamGreen	0:6ceefe1c53e4	3405	}
AdamGreen	0:6ceefe1c53e4	3406
AdamGreen	0:6ceefe1c53e4	3407
AdamGreen	0:6ceefe1c53e4	3408
AdamGreen	0:6ceefe1c53e4	3409
AdamGreen	0:6ceefe1c53e4	3410	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3411	/* Rename File/Directory */
AdamGreen	0:6ceefe1c53e4	3412	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3413
AdamGreen	0:6ceefe1c53e4	3414	FRESULT f_rename (
AdamGreen	0:6ceefe1c53e4	3415	const TCHAR path_old, / Pointer to the old name */
AdamGreen	0:6ceefe1c53e4	3416	const TCHAR path_new / Pointer to the new name */
AdamGreen	0:6ceefe1c53e4	3417	)
AdamGreen	0:6ceefe1c53e4	3418	{
AdamGreen	0:6ceefe1c53e4	3419	FRESULT res;
AdamGreen	0:6ceefe1c53e4	3420	FATFS_DIR djo, djn;
AdamGreen	0:6ceefe1c53e4	3421	BYTE buf[21], *dir;
AdamGreen	0:6ceefe1c53e4	3422	DWORD dw;
AdamGreen	0:6ceefe1c53e4	3423	DEF_NAMEBUF;
AdamGreen	0:6ceefe1c53e4	3424
AdamGreen	0:6ceefe1c53e4	3425
AdamGreen	0:6ceefe1c53e4	3426	res = chk_mounted(&path_old, &djo.fs, 1);
AdamGreen	0:6ceefe1c53e4	3427	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3428	djn.fs = djo.fs;
AdamGreen	0:6ceefe1c53e4	3429	INIT_BUF(djo);
AdamGreen	0:6ceefe1c53e4	3430	res = follow_path(&djo, path_old); /* Check old object */
AdamGreen	0:6ceefe1c53e4	3431	if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
AdamGreen	0:6ceefe1c53e4	3432	res = FR_INVALID_NAME;
AdamGreen	0:6ceefe1c53e4	3433	#if _FS_SHARE
AdamGreen	0:6ceefe1c53e4	3434	if (res == FR_OK) res = chk_lock(&djo, 2);
AdamGreen	0:6ceefe1c53e4	3435	#endif
AdamGreen	0:6ceefe1c53e4	3436	if (res == FR_OK) { /* Old object is found */
AdamGreen	0:6ceefe1c53e4	3437	if (!djo.dir) { /* Is root dir? */
AdamGreen	0:6ceefe1c53e4	3438	res = FR_NO_FILE;
AdamGreen	0:6ceefe1c53e4	3439	} else {
AdamGreen	0:6ceefe1c53e4	3440	mem_cpy(buf, djo.dir+DIR_Attr, 21); /* Save the object information except for name */
AdamGreen	0:6ceefe1c53e4	3441	mem_cpy(&djn, &djo, sizeof(FATFS_DIR)); /* Check new object */
AdamGreen	0:6ceefe1c53e4	3442	res = follow_path(&djn, path_new);
AdamGreen	0:6ceefe1c53e4	3443	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
AdamGreen	0:6ceefe1c53e4	3444	if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
AdamGreen	0:6ceefe1c53e4	3445	/* Start critical section that any interruption or error can cause cross-link */
AdamGreen	0:6ceefe1c53e4	3446	res = dir_register(&djn); /* Register the new entry */
AdamGreen	0:6ceefe1c53e4	3447	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3448	dir = djn.dir; /* Copy object information except for name */
AdamGreen	0:6ceefe1c53e4	3449	mem_cpy(dir+13, buf+2, 19);
AdamGreen	0:6ceefe1c53e4	3450	dir[DIR_Attr] = buf[0] \| AM_ARC;
AdamGreen	0:6ceefe1c53e4	3451	djo.fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	3452	if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) { /* Update .. entry in the directory if needed */
AdamGreen	0:6ceefe1c53e4	3453	dw = clust2sect(djn.fs, LD_CLUST(dir));
AdamGreen	0:6ceefe1c53e4	3454	if (!dw) {
AdamGreen	0:6ceefe1c53e4	3455	res = FR_INT_ERR;
AdamGreen	0:6ceefe1c53e4	3456	} else {
AdamGreen	0:6ceefe1c53e4	3457	res = move_window(djn.fs, dw);
AdamGreen	0:6ceefe1c53e4	3458	dir = djn.fs->win+SZ_DIR; /* .. entry */
AdamGreen	0:6ceefe1c53e4	3459	if (res == FR_OK && dir[1] == '.') {
AdamGreen	0:6ceefe1c53e4	3460	dw = (djn.fs->fs_type == FS_FAT32 && djn.sclust == djn.fs->dirbase) ? 0 : djn.sclust;
AdamGreen	0:6ceefe1c53e4	3461	ST_CLUST(dir, dw);
AdamGreen	0:6ceefe1c53e4	3462	djn.fs->wflag = 1;
AdamGreen	0:6ceefe1c53e4	3463	}
AdamGreen	0:6ceefe1c53e4	3464	}
AdamGreen	0:6ceefe1c53e4	3465	}
AdamGreen	0:6ceefe1c53e4	3466	if (res == FR_OK) {
AdamGreen	0:6ceefe1c53e4	3467	res = dir_remove(&djo); /* Remove old entry */
AdamGreen	0:6ceefe1c53e4	3468	if (res == FR_OK)
AdamGreen	0:6ceefe1c53e4	3469	res = sync(djo.fs);
AdamGreen	0:6ceefe1c53e4	3470	}
AdamGreen	0:6ceefe1c53e4	3471	}
AdamGreen	0:6ceefe1c53e4	3472	/* End critical section */
AdamGreen	0:6ceefe1c53e4	3473	}
AdamGreen	0:6ceefe1c53e4	3474	}
AdamGreen	0:6ceefe1c53e4	3475	}
AdamGreen	0:6ceefe1c53e4	3476	FREE_BUF();
AdamGreen	0:6ceefe1c53e4	3477	}
AdamGreen	0:6ceefe1c53e4	3478	LEAVE_FF(djo.fs, res);
AdamGreen	0:6ceefe1c53e4	3479	}
AdamGreen	0:6ceefe1c53e4	3480
AdamGreen	0:6ceefe1c53e4	3481	#endif /* !_FS_READONLY */
AdamGreen	0:6ceefe1c53e4	3482	#endif /* _FS_MINIMIZE == 0 */
AdamGreen	0:6ceefe1c53e4	3483	#endif /* _FS_MINIMIZE <= 1 */
AdamGreen	0:6ceefe1c53e4	3484	#endif /* _FS_MINIMIZE <= 2 */
AdamGreen	0:6ceefe1c53e4	3485
AdamGreen	0:6ceefe1c53e4	3486
AdamGreen	0:6ceefe1c53e4	3487
AdamGreen	0:6ceefe1c53e4	3488	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3489	/* Forward data to the stream directly (available on only tiny cfg) */
AdamGreen	0:6ceefe1c53e4	3490	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3491	#if _USE_FORWARD && _FS_TINY
AdamGreen	0:6ceefe1c53e4	3492
AdamGreen	0:6ceefe1c53e4	3493	FRESULT f_forward (
AdamGreen	0:6ceefe1c53e4	3494	FIL fp, / Pointer to the file object */
AdamGreen	0:6ceefe1c53e4	3495	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
AdamGreen	0:6ceefe1c53e4	3496	UINT btr, /* Number of bytes to forward */
AdamGreen	0:6ceefe1c53e4	3497	UINT bf / Pointer to number of bytes forwarded */
AdamGreen	0:6ceefe1c53e4	3498	)
AdamGreen	0:6ceefe1c53e4	3499	{
AdamGreen	0:6ceefe1c53e4	3500	FRESULT res;
AdamGreen	0:6ceefe1c53e4	3501	DWORD remain, clst, sect;
AdamGreen	0:6ceefe1c53e4	3502	UINT rcnt;
AdamGreen	0:6ceefe1c53e4	3503	BYTE csect;
AdamGreen	0:6ceefe1c53e4	3504
AdamGreen	0:6ceefe1c53e4	3505
AdamGreen	0:6ceefe1c53e4	3506	bf = 0; / Initialize byte counter */
AdamGreen	0:6ceefe1c53e4	3507
AdamGreen	0:6ceefe1c53e4	3508	res = validate(fp->fs, fp->id); /* Check validity of the object */
AdamGreen	0:6ceefe1c53e4	3509	if (res != FR_OK) LEAVE_FF(fp->fs, res);
AdamGreen	0:6ceefe1c53e4	3510	if (fp->flag & FA__ERROR) /* Check error flag */
AdamGreen	0:6ceefe1c53e4	3511	LEAVE_FF(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	3512	if (!(fp->flag & FA_READ)) /* Check access mode */
AdamGreen	0:6ceefe1c53e4	3513	LEAVE_FF(fp->fs, FR_DENIED);
AdamGreen	0:6ceefe1c53e4	3514
AdamGreen	0:6ceefe1c53e4	3515	remain = fp->fsize - fp->fptr;
AdamGreen	0:6ceefe1c53e4	3516	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
AdamGreen	0:6ceefe1c53e4	3517
AdamGreen	0:6ceefe1c53e4	3518	for ( ; btr && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
AdamGreen	0:6ceefe1c53e4	3519	fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
AdamGreen	0:6ceefe1c53e4	3520	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
AdamGreen	0:6ceefe1c53e4	3521	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
AdamGreen	0:6ceefe1c53e4	3522	if (!csect) { /* On the cluster boundary? */
AdamGreen	0:6ceefe1c53e4	3523	clst = (fp->fptr == 0) ? /* On the top of the file? */
AdamGreen	0:6ceefe1c53e4	3524	fp->sclust : get_fat(fp->fs, fp->clust);
AdamGreen	0:6ceefe1c53e4	3525	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	3526	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	3527	fp->clust = clst; /* Update current cluster */
AdamGreen	0:6ceefe1c53e4	3528	}
AdamGreen	0:6ceefe1c53e4	3529	}
AdamGreen	0:6ceefe1c53e4	3530	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
AdamGreen	0:6ceefe1c53e4	3531	if (!sect) ABORT(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	3532	sect += csect;
AdamGreen	0:6ceefe1c53e4	3533	if (move_window(fp->fs, sect)) /* Move sector window */
AdamGreen	0:6ceefe1c53e4	3534	ABORT(fp->fs, FR_DISK_ERR);
AdamGreen	0:6ceefe1c53e4	3535	fp->dsect = sect;
AdamGreen	0:6ceefe1c53e4	3536	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
AdamGreen	0:6ceefe1c53e4	3537	if (rcnt > btr) rcnt = btr;
AdamGreen	0:6ceefe1c53e4	3538	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
AdamGreen	0:6ceefe1c53e4	3539	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
AdamGreen	0:6ceefe1c53e4	3540	}
AdamGreen	0:6ceefe1c53e4	3541
AdamGreen	0:6ceefe1c53e4	3542	LEAVE_FF(fp->fs, FR_OK);
AdamGreen	0:6ceefe1c53e4	3543	}
AdamGreen	0:6ceefe1c53e4	3544	#endif /* _USE_FORWARD */
AdamGreen	0:6ceefe1c53e4	3545
AdamGreen	0:6ceefe1c53e4	3546
AdamGreen	0:6ceefe1c53e4	3547
AdamGreen	0:6ceefe1c53e4	3548	#if _USE_MKFS && !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	3549	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3550	/* Create File System on the Drive */
AdamGreen	0:6ceefe1c53e4	3551	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3552	#define N_ROOTDIR 512 /* Number of root dir entries for FAT12/16 */
AdamGreen	0:6ceefe1c53e4	3553	#define N_FATS 1 /* Number of FAT copies (1 or 2) */
AdamGreen	0:6ceefe1c53e4	3554
AdamGreen	0:6ceefe1c53e4	3555
AdamGreen	0:6ceefe1c53e4	3556	FRESULT f_mkfs (
AdamGreen	0:6ceefe1c53e4	3557	BYTE drv, /* Logical drive number */
AdamGreen	0:6ceefe1c53e4	3558	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
AdamGreen	0:6ceefe1c53e4	3559	UINT au /* Allocation unit size [bytes] */
AdamGreen	0:6ceefe1c53e4	3560	)
AdamGreen	0:6ceefe1c53e4	3561	{
AdamGreen	0:6ceefe1c53e4	3562	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
AdamGreen	0:6ceefe1c53e4	3563	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
AdamGreen	0:6ceefe1c53e4	3564	BYTE fmt, md, sys, *tbl, pdrv, part;
AdamGreen	0:6ceefe1c53e4	3565	DWORD n_clst, vs, n, wsect;
AdamGreen	0:6ceefe1c53e4	3566	UINT i;
AdamGreen	0:6ceefe1c53e4	3567	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
AdamGreen	0:6ceefe1c53e4	3568	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
AdamGreen	0:6ceefe1c53e4	3569	FATFS *fs;
AdamGreen	0:6ceefe1c53e4	3570	DSTATUS stat;
AdamGreen	0:6ceefe1c53e4	3571
AdamGreen	0:6ceefe1c53e4	3572
AdamGreen	0:6ceefe1c53e4	3573	/* Check mounted drive and clear work area */
AdamGreen	0:6ceefe1c53e4	3574	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
AdamGreen	0:6ceefe1c53e4	3575	if (sfd > 1) return FR_INVALID_PARAMETER;
AdamGreen	0:6ceefe1c53e4	3576	if (au & (au - 1)) return FR_INVALID_PARAMETER;
AdamGreen	0:6ceefe1c53e4	3577	fs = FatFs[drv];
AdamGreen	0:6ceefe1c53e4	3578	if (!fs) return FR_NOT_ENABLED;
AdamGreen	0:6ceefe1c53e4	3579	fs->fs_type = 0;
AdamGreen	0:6ceefe1c53e4	3580	pdrv = LD2PD(drv); /* Physical drive */
AdamGreen	0:6ceefe1c53e4	3581	part = LD2PT(drv); /* Partition (0:auto detect, 1-4:get from partition table)*/
AdamGreen	0:6ceefe1c53e4	3582
AdamGreen	0:6ceefe1c53e4	3583	/* Get disk statics */
AdamGreen	0:6ceefe1c53e4	3584	stat = disk_initialize(pdrv);
AdamGreen	0:6ceefe1c53e4	3585	if (stat & STA_NOINIT) return FR_NOT_READY;
AdamGreen	0:6ceefe1c53e4	3586	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
AdamGreen	0:6ceefe1c53e4	3587	#if _MAX_SS != 512 /* Get disk sector size */
AdamGreen	0:6ceefe1c53e4	3588	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS)
AdamGreen	0:6ceefe1c53e4	3589	return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	3590	#endif
AdamGreen	0:6ceefe1c53e4	3591	if (_MULTI_PARTITION && part) {
AdamGreen	0:6ceefe1c53e4	3592	/* Get partition information from partition table in the MBR */
AdamGreen	0:6ceefe1c53e4	3593	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	3594	if (LD_WORD(fs->win+BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
AdamGreen	0:6ceefe1c53e4	3595	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
AdamGreen	0:6ceefe1c53e4	3596	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
AdamGreen	0:6ceefe1c53e4	3597	b_vol = LD_DWORD(tbl+8); /* Volume start sector */
AdamGreen	0:6ceefe1c53e4	3598	n_vol = LD_DWORD(tbl+12); /* Volume size */
AdamGreen	0:6ceefe1c53e4	3599	} else {
AdamGreen	0:6ceefe1c53e4	3600	/* Create a partition in this function */
AdamGreen	0:6ceefe1c53e4	3601	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
AdamGreen	0:6ceefe1c53e4	3602	return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	3603	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
AdamGreen	0:6ceefe1c53e4	3604	n_vol -= b_vol; /* Volume size */
AdamGreen	0:6ceefe1c53e4	3605	}
AdamGreen	0:6ceefe1c53e4	3606
AdamGreen	0:6ceefe1c53e4	3607	if (!au) { /* AU auto selection */
AdamGreen	0:6ceefe1c53e4	3608	vs = n_vol / (2000 / (SS(fs) / 512));
AdamGreen	0:6ceefe1c53e4	3609	for (i = 0; vs < vst[i]; i++) ;
AdamGreen	0:6ceefe1c53e4	3610	au = cst[i];
AdamGreen	0:6ceefe1c53e4	3611	}
AdamGreen	0:6ceefe1c53e4	3612	au /= SS(fs); /* Number of sectors per cluster */
AdamGreen	0:6ceefe1c53e4	3613	if (au == 0) au = 1;
AdamGreen	0:6ceefe1c53e4	3614	if (au > 128) au = 128;
AdamGreen	0:6ceefe1c53e4	3615
AdamGreen	0:6ceefe1c53e4	3616	/* Pre-compute number of clusters and FAT syb-type */
AdamGreen	0:6ceefe1c53e4	3617	n_clst = n_vol / au;
AdamGreen	0:6ceefe1c53e4	3618	fmt = FS_FAT12;
AdamGreen	0:6ceefe1c53e4	3619	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
AdamGreen	0:6ceefe1c53e4	3620	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
AdamGreen	0:6ceefe1c53e4	3621
AdamGreen	0:6ceefe1c53e4	3622	/* Determine offset and size of FAT structure */
AdamGreen	0:6ceefe1c53e4	3623	if (fmt == FS_FAT32) {
AdamGreen	0:6ceefe1c53e4	3624	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
AdamGreen	0:6ceefe1c53e4	3625	n_rsv = 32;
AdamGreen	0:6ceefe1c53e4	3626	n_dir = 0;
AdamGreen	0:6ceefe1c53e4	3627	} else {
AdamGreen	0:6ceefe1c53e4	3628	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
AdamGreen	0:6ceefe1c53e4	3629	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
AdamGreen	0:6ceefe1c53e4	3630	n_rsv = 1;
AdamGreen	0:6ceefe1c53e4	3631	n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
AdamGreen	0:6ceefe1c53e4	3632	}
AdamGreen	0:6ceefe1c53e4	3633	b_fat = b_vol + n_rsv; /* FAT area start sector */
AdamGreen	0:6ceefe1c53e4	3634	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
AdamGreen	0:6ceefe1c53e4	3635	b_data = b_dir + n_dir; /* Data area start sector */
AdamGreen	0:6ceefe1c53e4	3636	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
AdamGreen	0:6ceefe1c53e4	3637
AdamGreen	0:6ceefe1c53e4	3638	/* Align data start sector to erase block boundary (for flash memory media) */
AdamGreen	0:6ceefe1c53e4	3639	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
AdamGreen	0:6ceefe1c53e4	3640	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
AdamGreen	0:6ceefe1c53e4	3641	n = (n - b_data) / N_FATS;
AdamGreen	0:6ceefe1c53e4	3642	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
AdamGreen	0:6ceefe1c53e4	3643	n_rsv += n;
AdamGreen	0:6ceefe1c53e4	3644	b_fat += n;
AdamGreen	0:6ceefe1c53e4	3645	} else { /* FAT12/16: Expand FAT size */
AdamGreen	0:6ceefe1c53e4	3646	n_fat += n;
AdamGreen	0:6ceefe1c53e4	3647	}
AdamGreen	0:6ceefe1c53e4	3648
AdamGreen	0:6ceefe1c53e4	3649	/* Determine number of clusters and final check of validity of the FAT sub-type */
AdamGreen	0:6ceefe1c53e4	3650	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
AdamGreen	0:6ceefe1c53e4	3651	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
AdamGreen	0:6ceefe1c53e4	3652	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
AdamGreen	0:6ceefe1c53e4	3653	return FR_MKFS_ABORTED;
AdamGreen	0:6ceefe1c53e4	3654
AdamGreen	0:6ceefe1c53e4	3655	switch (fmt) { /* Determine system ID for partition table */
AdamGreen	0:6ceefe1c53e4	3656	case FS_FAT12: sys = 0x01; break;
AdamGreen	0:6ceefe1c53e4	3657	case FS_FAT16: sys = (n_vol < 0x10000) ? 0x04 : 0x06; break;
AdamGreen	0:6ceefe1c53e4	3658	default: sys = 0x0C;
AdamGreen	0:6ceefe1c53e4	3659	}
AdamGreen	0:6ceefe1c53e4	3660
AdamGreen	0:6ceefe1c53e4	3661	if (_MULTI_PARTITION && part) {
AdamGreen	0:6ceefe1c53e4	3662	/* Update system ID in the partition table */
AdamGreen	0:6ceefe1c53e4	3663	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
AdamGreen	0:6ceefe1c53e4	3664	tbl[4] = sys;
AdamGreen	0:6ceefe1c53e4	3665	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	3666	md = 0xF8;
AdamGreen	0:6ceefe1c53e4	3667	} else {
AdamGreen	0:6ceefe1c53e4	3668	if (sfd) { /* No patition table (SFD) */
AdamGreen	0:6ceefe1c53e4	3669	md = 0xF0;
AdamGreen	0:6ceefe1c53e4	3670	} else { /* Create partition table (FDISK) */
AdamGreen	0:6ceefe1c53e4	3671	mem_set(fs->win, 0, SS(fs));
AdamGreen	0:6ceefe1c53e4	3672	tbl = fs->win+MBR_Table; /* Create partiton table for single partition in the drive */
AdamGreen	0:6ceefe1c53e4	3673	tbl[1] = 1; /* Partition start head */
AdamGreen	0:6ceefe1c53e4	3674	tbl[2] = 1; /* Partition start sector */
AdamGreen	0:6ceefe1c53e4	3675	tbl[3] = 0; /* Partition start cylinder */
AdamGreen	0:6ceefe1c53e4	3676	tbl[4] = sys; /* System type */
AdamGreen	0:6ceefe1c53e4	3677	tbl[5] = 254; /* Partition end head */
AdamGreen	0:6ceefe1c53e4	3678	n = (b_vol + n_vol) / 63 / 255;
AdamGreen	0:6ceefe1c53e4	3679	tbl[6] = (BYTE)((n >> 2) \| 63); /* Partiiton end sector */
AdamGreen	0:6ceefe1c53e4	3680	tbl[7] = (BYTE)n; /* End cylinder */
AdamGreen	0:6ceefe1c53e4	3681	ST_DWORD(tbl+8, 63); /* Partition start in LBA */
AdamGreen	0:6ceefe1c53e4	3682	ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
AdamGreen	0:6ceefe1c53e4	3683	ST_WORD(fs->win+BS_55AA, 0xAA55); /* MBR signature */
AdamGreen	0:6ceefe1c53e4	3684	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR sector */
AdamGreen	0:6ceefe1c53e4	3685	return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	3686	md = 0xF8;
AdamGreen	0:6ceefe1c53e4	3687	}
AdamGreen	0:6ceefe1c53e4	3688	}
AdamGreen	0:6ceefe1c53e4	3689
AdamGreen	0:6ceefe1c53e4	3690	/* Create BPB in the VBR */
AdamGreen	0:6ceefe1c53e4	3691	tbl = fs->win; /* Clear sector */
AdamGreen	0:6ceefe1c53e4	3692	mem_set(tbl, 0, SS(fs));
AdamGreen	0:6ceefe1c53e4	3693	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
AdamGreen	0:6ceefe1c53e4	3694	i = SS(fs); /* Sector size */
AdamGreen	0:6ceefe1c53e4	3695	ST_WORD(tbl+BPB_BytsPerSec, i);
AdamGreen	0:6ceefe1c53e4	3696	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
AdamGreen	0:6ceefe1c53e4	3697	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
AdamGreen	0:6ceefe1c53e4	3698	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
AdamGreen	0:6ceefe1c53e4	3699	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of rootdir entries */
AdamGreen	0:6ceefe1c53e4	3700	ST_WORD(tbl+BPB_RootEntCnt, i);
AdamGreen	0:6ceefe1c53e4	3701	if (n_vol < 0x10000) { /* Number of total sectors */
AdamGreen	0:6ceefe1c53e4	3702	ST_WORD(tbl+BPB_TotSec16, n_vol);
AdamGreen	0:6ceefe1c53e4	3703	} else {
AdamGreen	0:6ceefe1c53e4	3704	ST_DWORD(tbl+BPB_TotSec32, n_vol);
AdamGreen	0:6ceefe1c53e4	3705	}
AdamGreen	0:6ceefe1c53e4	3706	tbl[BPB_Media] = md; /* Media descriptor */
AdamGreen	0:6ceefe1c53e4	3707	ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
AdamGreen	0:6ceefe1c53e4	3708	ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
AdamGreen	0:6ceefe1c53e4	3709	ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
AdamGreen	0:6ceefe1c53e4	3710	n = get_fattime(); /* Use current time as VSN */
AdamGreen	0:6ceefe1c53e4	3711	if (fmt == FS_FAT32) {
AdamGreen	0:6ceefe1c53e4	3712	ST_DWORD(tbl+BS_VolID32, n); /* VSN */
AdamGreen	0:6ceefe1c53e4	3713	ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
AdamGreen	0:6ceefe1c53e4	3714	ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
AdamGreen	0:6ceefe1c53e4	3715	ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (VBR+1) */
AdamGreen	0:6ceefe1c53e4	3716	ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
AdamGreen	0:6ceefe1c53e4	3717	tbl[BS_DrvNum32] = 0x80; /* Drive number */
AdamGreen	0:6ceefe1c53e4	3718	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
AdamGreen	0:6ceefe1c53e4	3719	mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
AdamGreen	0:6ceefe1c53e4	3720	} else {
AdamGreen	0:6ceefe1c53e4	3721	ST_DWORD(tbl+BS_VolID, n); /* VSN */
AdamGreen	0:6ceefe1c53e4	3722	ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
AdamGreen	0:6ceefe1c53e4	3723	tbl[BS_DrvNum] = 0x80; /* Drive number */
AdamGreen	0:6ceefe1c53e4	3724	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
AdamGreen	0:6ceefe1c53e4	3725	mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
AdamGreen	0:6ceefe1c53e4	3726	}
AdamGreen	0:6ceefe1c53e4	3727	ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
AdamGreen	0:6ceefe1c53e4	3728	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
AdamGreen	0:6ceefe1c53e4	3729	return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	3730	if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR+6) */
AdamGreen	0:6ceefe1c53e4	3731	disk_write(pdrv, tbl, b_vol + 6, 1);
AdamGreen	0:6ceefe1c53e4	3732
AdamGreen	0:6ceefe1c53e4	3733	/* Initialize FAT area */
AdamGreen	0:6ceefe1c53e4	3734	wsect = b_fat;
AdamGreen	0:6ceefe1c53e4	3735	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
AdamGreen	0:6ceefe1c53e4	3736	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
AdamGreen	0:6ceefe1c53e4	3737	n = md; /* Media descriptor byte */
AdamGreen	0:6ceefe1c53e4	3738	if (fmt != FS_FAT32) {
AdamGreen	0:6ceefe1c53e4	3739	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
AdamGreen	0:6ceefe1c53e4	3740	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
AdamGreen	0:6ceefe1c53e4	3741	} else {
AdamGreen	0:6ceefe1c53e4	3742	n \|= 0xFFFFFF00;
AdamGreen	0:6ceefe1c53e4	3743	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
AdamGreen	0:6ceefe1c53e4	3744	ST_DWORD(tbl+4, 0xFFFFFFFF);
AdamGreen	0:6ceefe1c53e4	3745	ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
AdamGreen	0:6ceefe1c53e4	3746	}
AdamGreen	0:6ceefe1c53e4	3747	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
AdamGreen	0:6ceefe1c53e4	3748	return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	3749	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
AdamGreen	0:6ceefe1c53e4	3750	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
AdamGreen	0:6ceefe1c53e4	3751	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
AdamGreen	0:6ceefe1c53e4	3752	return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	3753	}
AdamGreen	0:6ceefe1c53e4	3754	}
AdamGreen	0:6ceefe1c53e4	3755
AdamGreen	0:6ceefe1c53e4	3756	/* Initialize root directory */
AdamGreen	0:6ceefe1c53e4	3757	i = (fmt == FS_FAT32) ? au : n_dir;
AdamGreen	0:6ceefe1c53e4	3758	do {
AdamGreen	0:6ceefe1c53e4	3759	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
AdamGreen	0:6ceefe1c53e4	3760	return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	3761	} while (--i);
AdamGreen	0:6ceefe1c53e4	3762
AdamGreen	0:6ceefe1c53e4	3763	#if _USE_ERASE /* Erase data area if needed */
AdamGreen	0:6ceefe1c53e4	3764	{
AdamGreen	0:6ceefe1c53e4	3765	DWORD eb[2];
AdamGreen	0:6ceefe1c53e4	3766
AdamGreen	0:6ceefe1c53e4	3767	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
AdamGreen	0:6ceefe1c53e4	3768	disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
AdamGreen	0:6ceefe1c53e4	3769	}
AdamGreen	0:6ceefe1c53e4	3770	#endif
AdamGreen	0:6ceefe1c53e4	3771
AdamGreen	0:6ceefe1c53e4	3772	/* Create FSInfo if needed */
AdamGreen	0:6ceefe1c53e4	3773	if (fmt == FS_FAT32) {
AdamGreen	0:6ceefe1c53e4	3774	ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
AdamGreen	0:6ceefe1c53e4	3775	ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
AdamGreen	0:6ceefe1c53e4	3776	ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
AdamGreen	0:6ceefe1c53e4	3777	ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
AdamGreen	0:6ceefe1c53e4	3778	ST_WORD(tbl+BS_55AA, 0xAA55);
AdamGreen	0:6ceefe1c53e4	3779	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
AdamGreen	0:6ceefe1c53e4	3780	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
AdamGreen	0:6ceefe1c53e4	3781	}
AdamGreen	0:6ceefe1c53e4	3782
AdamGreen	0:6ceefe1c53e4	3783	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	3784	}
AdamGreen	0:6ceefe1c53e4	3785
AdamGreen	0:6ceefe1c53e4	3786
AdamGreen	0:6ceefe1c53e4	3787	#if _MULTI_PARTITION == 2
AdamGreen	0:6ceefe1c53e4	3788	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3789	/* Divide Physical Drive */
AdamGreen	0:6ceefe1c53e4	3790	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3791
AdamGreen	0:6ceefe1c53e4	3792	FRESULT f_fdisk (
AdamGreen	0:6ceefe1c53e4	3793	BYTE pdrv, /* Physical drive number */
AdamGreen	0:6ceefe1c53e4	3794	const DWORD szt[], /* Pointer to the size table for each partitions */
AdamGreen	0:6ceefe1c53e4	3795	void* work /* Pointer to the working buffer */
AdamGreen	0:6ceefe1c53e4	3796	)
AdamGreen	0:6ceefe1c53e4	3797	{
AdamGreen	0:6ceefe1c53e4	3798	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
AdamGreen	0:6ceefe1c53e4	3799	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
AdamGreen	0:6ceefe1c53e4	3800	DSTATUS stat;
AdamGreen	0:6ceefe1c53e4	3801	DWORD sz_disk, sz_part, s_part;
AdamGreen	0:6ceefe1c53e4	3802
AdamGreen	0:6ceefe1c53e4	3803
AdamGreen	0:6ceefe1c53e4	3804	stat = disk_initialize(pdrv);
AdamGreen	0:6ceefe1c53e4	3805	if (stat & STA_NOINIT) return FR_NOT_READY;
AdamGreen	0:6ceefe1c53e4	3806	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
AdamGreen	0:6ceefe1c53e4	3807	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
AdamGreen	0:6ceefe1c53e4	3808
AdamGreen	0:6ceefe1c53e4	3809	/* Determine CHS in the table regardless of the drive geometry */
AdamGreen	0:6ceefe1c53e4	3810	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
AdamGreen	0:6ceefe1c53e4	3811	if (n == 256) n--;
AdamGreen	0:6ceefe1c53e4	3812	e_hd = n - 1;
AdamGreen	0:6ceefe1c53e4	3813	sz_cyl = 63 * n;
AdamGreen	0:6ceefe1c53e4	3814	tot_cyl = sz_disk / sz_cyl;
AdamGreen	0:6ceefe1c53e4	3815
AdamGreen	0:6ceefe1c53e4	3816	/* Create partition table */
AdamGreen	0:6ceefe1c53e4	3817	mem_set(buf, 0, _MAX_SS);
AdamGreen	0:6ceefe1c53e4	3818	p = buf + MBR_Table; b_cyl = 0;
AdamGreen	0:6ceefe1c53e4	3819	for (i = 0; i < 4; i++, p += SZ_PTE) {
AdamGreen	0:6ceefe1c53e4	3820	p_cyl = (szt[i] <= 100) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
AdamGreen	0:6ceefe1c53e4	3821	if (!p_cyl) continue;
AdamGreen	0:6ceefe1c53e4	3822	s_part = (DWORD)sz_cyl * b_cyl;
AdamGreen	0:6ceefe1c53e4	3823	sz_part = (DWORD)sz_cyl * p_cyl;
AdamGreen	0:6ceefe1c53e4	3824	if (i == 0) { /* Exclude first track of cylinder 0 */
AdamGreen	0:6ceefe1c53e4	3825	s_hd = 1;
AdamGreen	0:6ceefe1c53e4	3826	s_part += 63; sz_part -= 63;
AdamGreen	0:6ceefe1c53e4	3827	} else {
AdamGreen	0:6ceefe1c53e4	3828	s_hd = 0;
AdamGreen	0:6ceefe1c53e4	3829	}
AdamGreen	0:6ceefe1c53e4	3830	e_cyl = b_cyl + p_cyl - 1;
AdamGreen	0:6ceefe1c53e4	3831	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
AdamGreen	0:6ceefe1c53e4	3832
AdamGreen	0:6ceefe1c53e4	3833	/* Set partition table */
AdamGreen	0:6ceefe1c53e4	3834	p[1] = s_hd; /* Start head */
AdamGreen	0:6ceefe1c53e4	3835	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
AdamGreen	0:6ceefe1c53e4	3836	p[3] = (BYTE)b_cyl; /* Start cylinder */
AdamGreen	0:6ceefe1c53e4	3837	p[4] = 0x06; /* System type (temporary setting) */
AdamGreen	0:6ceefe1c53e4	3838	p[5] = e_hd; /* End head */
AdamGreen	0:6ceefe1c53e4	3839	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
AdamGreen	0:6ceefe1c53e4	3840	p[7] = (BYTE)e_cyl; /* End cylinder */
AdamGreen	0:6ceefe1c53e4	3841	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
AdamGreen	0:6ceefe1c53e4	3842	ST_DWORD(p + 12, sz_part); /* Partition size */
AdamGreen	0:6ceefe1c53e4	3843
AdamGreen	0:6ceefe1c53e4	3844	/* Next partition */
AdamGreen	0:6ceefe1c53e4	3845	b_cyl += p_cyl;
AdamGreen	0:6ceefe1c53e4	3846	}
AdamGreen	0:6ceefe1c53e4	3847	ST_WORD(p, 0xAA55);
AdamGreen	0:6ceefe1c53e4	3848
AdamGreen	0:6ceefe1c53e4	3849	/* Write it to the MBR */
AdamGreen	0:6ceefe1c53e4	3850	return (disk_write(pdrv, buf, 0, 1) \|\| disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
AdamGreen	0:6ceefe1c53e4	3851	}
AdamGreen	0:6ceefe1c53e4	3852
AdamGreen	0:6ceefe1c53e4	3853
AdamGreen	0:6ceefe1c53e4	3854	#endif /* _MULTI_PARTITION == 2 */
AdamGreen	0:6ceefe1c53e4	3855	#endif /* _USE_MKFS && !_FS_READONLY */
AdamGreen	0:6ceefe1c53e4	3856
AdamGreen	0:6ceefe1c53e4	3857
AdamGreen	0:6ceefe1c53e4	3858
AdamGreen	0:6ceefe1c53e4	3859
AdamGreen	0:6ceefe1c53e4	3860	#if _USE_STRFUNC
AdamGreen	0:6ceefe1c53e4	3861	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3862	/* Get a string from the file */
AdamGreen	0:6ceefe1c53e4	3863	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3864	TCHAR* f_gets (
AdamGreen	0:6ceefe1c53e4	3865	TCHAR* buff, /* Pointer to the string buffer to read */
AdamGreen	0:6ceefe1c53e4	3866	int len, /* Size of string buffer (characters) */
AdamGreen	0:6ceefe1c53e4	3867	FIL* fil /* Pointer to the file object */
AdamGreen	0:6ceefe1c53e4	3868	)
AdamGreen	0:6ceefe1c53e4	3869	{
AdamGreen	0:6ceefe1c53e4	3870	int n = 0;
AdamGreen	0:6ceefe1c53e4	3871	TCHAR c, *p = buff;
AdamGreen	0:6ceefe1c53e4	3872	BYTE s[2];
AdamGreen	0:6ceefe1c53e4	3873	UINT rc;
AdamGreen	0:6ceefe1c53e4	3874
AdamGreen	0:6ceefe1c53e4	3875
AdamGreen	0:6ceefe1c53e4	3876	while (n < len - 1) { /* Read bytes until buffer gets filled */
AdamGreen	0:6ceefe1c53e4	3877	f_read(fil, s, 1, &rc);
AdamGreen	0:6ceefe1c53e4	3878	if (rc != 1) break; /* Break on EOF or error */
AdamGreen	0:6ceefe1c53e4	3879	c = s[0];
AdamGreen	0:6ceefe1c53e4	3880	#if _LFN_UNICODE /* Read a character in UTF-8 encoding */
AdamGreen	0:6ceefe1c53e4	3881	if (c >= 0x80) {
AdamGreen	0:6ceefe1c53e4	3882	if (c < 0xC0) continue; /* Skip stray trailer */
AdamGreen	0:6ceefe1c53e4	3883	if (c < 0xE0) { /* Two-byte sequense */
AdamGreen	0:6ceefe1c53e4	3884	f_read(fil, s, 1, &rc);
AdamGreen	0:6ceefe1c53e4	3885	if (rc != 1) break;
AdamGreen	0:6ceefe1c53e4	3886	c = ((c & 0x1F) << 6) \| (s[0] & 0x3F);
AdamGreen	0:6ceefe1c53e4	3887	if (c < 0x80) c = '?';
AdamGreen	0:6ceefe1c53e4	3888	} else {
AdamGreen	0:6ceefe1c53e4	3889	if (c < 0xF0) { /* Three-byte sequense */
AdamGreen	0:6ceefe1c53e4	3890	f_read(fil, s, 2, &rc);
AdamGreen	0:6ceefe1c53e4	3891	if (rc != 2) break;
AdamGreen	0:6ceefe1c53e4	3892	c = (c << 12) \| ((s[0] & 0x3F) << 6) \| (s[1] & 0x3F);
AdamGreen	0:6ceefe1c53e4	3893	if (c < 0x800) c = '?';
AdamGreen	0:6ceefe1c53e4	3894	} else { /* Reject four-byte sequense */
AdamGreen	0:6ceefe1c53e4	3895	c = '?';
AdamGreen	0:6ceefe1c53e4	3896	}
AdamGreen	0:6ceefe1c53e4	3897	}
AdamGreen	0:6ceefe1c53e4	3898	}
AdamGreen	0:6ceefe1c53e4	3899	#endif
AdamGreen	0:6ceefe1c53e4	3900	#if _USE_STRFUNC >= 2
AdamGreen	0:6ceefe1c53e4	3901	if (c == '\r') continue; /* Strip '\r' */
AdamGreen	0:6ceefe1c53e4	3902	#endif
AdamGreen	0:6ceefe1c53e4	3903	*p++ = c;
AdamGreen	0:6ceefe1c53e4	3904	n++;
AdamGreen	0:6ceefe1c53e4	3905	if (c == '\n') break; /* Break on EOL */
AdamGreen	0:6ceefe1c53e4	3906	}
AdamGreen	0:6ceefe1c53e4	3907	*p = 0;
AdamGreen	0:6ceefe1c53e4	3908	return n ? buff : 0; /* When no data read (eof or error), return with error. */
AdamGreen	0:6ceefe1c53e4	3909	}
AdamGreen	0:6ceefe1c53e4	3910
AdamGreen	0:6ceefe1c53e4	3911
AdamGreen	0:6ceefe1c53e4	3912
AdamGreen	0:6ceefe1c53e4	3913	#if !_FS_READONLY
AdamGreen	0:6ceefe1c53e4	3914	#include <stdarg.h>
AdamGreen	0:6ceefe1c53e4	3915	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3916	/* Put a character to the file */
AdamGreen	0:6ceefe1c53e4	3917	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3918	int f_putc (
AdamGreen	0:6ceefe1c53e4	3919	TCHAR c, /* A character to be output */
AdamGreen	0:6ceefe1c53e4	3920	FIL* fil /* Pointer to the file object */
AdamGreen	0:6ceefe1c53e4	3921	)
AdamGreen	0:6ceefe1c53e4	3922	{
AdamGreen	0:6ceefe1c53e4	3923	UINT bw, btw;
AdamGreen	0:6ceefe1c53e4	3924	BYTE s[3];
AdamGreen	0:6ceefe1c53e4	3925
AdamGreen	0:6ceefe1c53e4	3926
AdamGreen	0:6ceefe1c53e4	3927	#if _USE_STRFUNC >= 2
AdamGreen	0:6ceefe1c53e4	3928	if (c == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */
AdamGreen	0:6ceefe1c53e4	3929	#endif
AdamGreen	0:6ceefe1c53e4	3930
AdamGreen	0:6ceefe1c53e4	3931	#if _LFN_UNICODE /* Write the character in UTF-8 encoding */
AdamGreen	0:6ceefe1c53e4	3932	if (c < 0x80) { /* 7-bit */
AdamGreen	0:6ceefe1c53e4	3933	s[0] = (BYTE)c;
AdamGreen	0:6ceefe1c53e4	3934	btw = 1;
AdamGreen	0:6ceefe1c53e4	3935	} else {
AdamGreen	0:6ceefe1c53e4	3936	if (c < 0x800) { /* 11-bit */
AdamGreen	0:6ceefe1c53e4	3937	s[0] = (BYTE)(0xC0 \| (c >> 6));
AdamGreen	0:6ceefe1c53e4	3938	s[1] = (BYTE)(0x80 \| (c & 0x3F));
AdamGreen	0:6ceefe1c53e4	3939	btw = 2;
AdamGreen	0:6ceefe1c53e4	3940	} else { /* 16-bit */
AdamGreen	0:6ceefe1c53e4	3941	s[0] = (BYTE)(0xE0 \| (c >> 12));
AdamGreen	0:6ceefe1c53e4	3942	s[1] = (BYTE)(0x80 \| ((c >> 6) & 0x3F));
AdamGreen	0:6ceefe1c53e4	3943	s[2] = (BYTE)(0x80 \| (c & 0x3F));
AdamGreen	0:6ceefe1c53e4	3944	btw = 3;
AdamGreen	0:6ceefe1c53e4	3945	}
AdamGreen	0:6ceefe1c53e4	3946	}
AdamGreen	0:6ceefe1c53e4	3947	#else /* Write the character without conversion */
AdamGreen	0:6ceefe1c53e4	3948	s[0] = (BYTE)c;
AdamGreen	0:6ceefe1c53e4	3949	btw = 1;
AdamGreen	0:6ceefe1c53e4	3950	#endif
AdamGreen	0:6ceefe1c53e4	3951	f_write(fil, s, btw, &bw); /* Write the char to the file */
AdamGreen	0:6ceefe1c53e4	3952	return (bw == btw) ? 1 : EOF; /* Return the result */
AdamGreen	0:6ceefe1c53e4	3953	}
AdamGreen	0:6ceefe1c53e4	3954
AdamGreen	0:6ceefe1c53e4	3955
AdamGreen	0:6ceefe1c53e4	3956
AdamGreen	0:6ceefe1c53e4	3957
AdamGreen	0:6ceefe1c53e4	3958	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3959	/* Put a string to the file */
AdamGreen	0:6ceefe1c53e4	3960	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3961	int f_puts (
AdamGreen	0:6ceefe1c53e4	3962	const TCHAR* str, /* Pointer to the string to be output */
AdamGreen	0:6ceefe1c53e4	3963	FIL* fil /* Pointer to the file object */
AdamGreen	0:6ceefe1c53e4	3964	)
AdamGreen	0:6ceefe1c53e4	3965	{
AdamGreen	0:6ceefe1c53e4	3966	int n;
AdamGreen	0:6ceefe1c53e4	3967
AdamGreen	0:6ceefe1c53e4	3968
AdamGreen	0:6ceefe1c53e4	3969	for (n = 0; *str; str++, n++) {
AdamGreen	0:6ceefe1c53e4	3970	if (f_putc(*str, fil) == EOF) return EOF;
AdamGreen	0:6ceefe1c53e4	3971	}
AdamGreen	0:6ceefe1c53e4	3972	return n;
AdamGreen	0:6ceefe1c53e4	3973	}
AdamGreen	0:6ceefe1c53e4	3974
AdamGreen	0:6ceefe1c53e4	3975
AdamGreen	0:6ceefe1c53e4	3976
AdamGreen	0:6ceefe1c53e4	3977
AdamGreen	0:6ceefe1c53e4	3978	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3979	/* Put a formatted string to the file */
AdamGreen	0:6ceefe1c53e4	3980	/-----------------------------------------------------------------------/
AdamGreen	0:6ceefe1c53e4	3981	int f_printf (
AdamGreen	0:6ceefe1c53e4	3982	FIL* fil, /* Pointer to the file object */
AdamGreen	0:6ceefe1c53e4	3983	const TCHAR* str, /* Pointer to the format string */
AdamGreen	0:6ceefe1c53e4	3984	... /* Optional arguments... */
AdamGreen	0:6ceefe1c53e4	3985	)
AdamGreen	0:6ceefe1c53e4	3986	{
AdamGreen	0:6ceefe1c53e4	3987	va_list arp;
AdamGreen	0:6ceefe1c53e4	3988	BYTE f, r;
AdamGreen	0:6ceefe1c53e4	3989	UINT i, j, w;
AdamGreen	0:6ceefe1c53e4	3990	ULONG v;
AdamGreen	0:6ceefe1c53e4	3991	TCHAR c, d, s[16], *p;
AdamGreen	0:6ceefe1c53e4	3992	int res, chc, cc;
AdamGreen	0:6ceefe1c53e4	3993
AdamGreen	0:6ceefe1c53e4	3994
AdamGreen	0:6ceefe1c53e4	3995	va_start(arp, str);
AdamGreen	0:6ceefe1c53e4	3996
AdamGreen	0:6ceefe1c53e4	3997	for (cc = res = 0; cc != EOF; res += cc) {
AdamGreen	0:6ceefe1c53e4	3998	c = *str++;
AdamGreen	0:6ceefe1c53e4	3999	if (c == 0) break; /* End of string */
AdamGreen	0:6ceefe1c53e4	4000	if (c != '%') { /* Non escape character */
AdamGreen	0:6ceefe1c53e4	4001	cc = f_putc(c, fil);
AdamGreen	0:6ceefe1c53e4	4002	if (cc != EOF) cc = 1;
AdamGreen	0:6ceefe1c53e4	4003	continue;
AdamGreen	0:6ceefe1c53e4	4004	}
AdamGreen	0:6ceefe1c53e4	4005	w = f = 0;
AdamGreen	0:6ceefe1c53e4	4006	c = *str++;
AdamGreen	0:6ceefe1c53e4	4007	if (c == '0') { /* Flag: '0' padding */
AdamGreen	0:6ceefe1c53e4	4008	f = 1; c = *str++;
AdamGreen	0:6ceefe1c53e4	4009	} else {
AdamGreen	0:6ceefe1c53e4	4010	if (c == '-') { /* Flag: left justified */
AdamGreen	0:6ceefe1c53e4	4011	f = 2; c = *str++;
AdamGreen	0:6ceefe1c53e4	4012	}
AdamGreen	0:6ceefe1c53e4	4013	}
AdamGreen	0:6ceefe1c53e4	4014	while (IsDigit(c)) { /* Precision */
AdamGreen	0:6ceefe1c53e4	4015	w = w * 10 + c - '0';
AdamGreen	0:6ceefe1c53e4	4016	c = *str++;
AdamGreen	0:6ceefe1c53e4	4017	}
AdamGreen	0:6ceefe1c53e4	4018	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
AdamGreen	0:6ceefe1c53e4	4019	f \|= 4; c = *str++;
AdamGreen	0:6ceefe1c53e4	4020	}
AdamGreen	0:6ceefe1c53e4	4021	if (!c) break;
AdamGreen	0:6ceefe1c53e4	4022	d = c;
AdamGreen	0:6ceefe1c53e4	4023	if (IsLower(d)) d -= 0x20;
AdamGreen	0:6ceefe1c53e4	4024	switch (d) { /* Type is... */
AdamGreen	0:6ceefe1c53e4	4025	case 'S' : /* String */
AdamGreen	0:6ceefe1c53e4	4026	p = va_arg(arp, TCHAR*);
AdamGreen	0:6ceefe1c53e4	4027	for (j = 0; p[j]; j++) ;
AdamGreen	0:6ceefe1c53e4	4028	chc = 0;
AdamGreen	0:6ceefe1c53e4	4029	if (!(f & 2)) {
AdamGreen	0:6ceefe1c53e4	4030	while (j++ < w) chc += (cc = f_putc(' ', fil));
AdamGreen	0:6ceefe1c53e4	4031	}
AdamGreen	0:6ceefe1c53e4	4032	chc += (cc = f_puts(p, fil));
AdamGreen	0:6ceefe1c53e4	4033	while (j++ < w) chc += (cc = f_putc(' ', fil));
AdamGreen	0:6ceefe1c53e4	4034	if (cc != EOF) cc = chc;
AdamGreen	0:6ceefe1c53e4	4035	continue;
AdamGreen	0:6ceefe1c53e4	4036	case 'C' : /* Character */
AdamGreen	0:6ceefe1c53e4	4037	cc = f_putc((TCHAR)va_arg(arp, int), fil); continue;
AdamGreen	0:6ceefe1c53e4	4038	case 'B' : /* Binary */
AdamGreen	0:6ceefe1c53e4	4039	r = 2; break;
AdamGreen	0:6ceefe1c53e4	4040	case 'O' : /* Octal */
AdamGreen	0:6ceefe1c53e4	4041	r = 8; break;
AdamGreen	0:6ceefe1c53e4	4042	case 'D' : /* Signed decimal */
AdamGreen	0:6ceefe1c53e4	4043	case 'U' : /* Unsigned decimal */
AdamGreen	0:6ceefe1c53e4	4044	r = 10; break;
AdamGreen	0:6ceefe1c53e4	4045	case 'X' : /* Hexdecimal */
AdamGreen	0:6ceefe1c53e4	4046	r = 16; break;
AdamGreen	0:6ceefe1c53e4	4047	default: /* Unknown type (passthrough) */
AdamGreen	0:6ceefe1c53e4	4048	cc = f_putc(c, fil); continue;
AdamGreen	0:6ceefe1c53e4	4049	}
AdamGreen	0:6ceefe1c53e4	4050
AdamGreen	0:6ceefe1c53e4	4051	/* Get an argument and put it in numeral */
AdamGreen	0:6ceefe1c53e4	4052	v = (f & 4) ? (ULONG)va_arg(arp, long) : ((d == 'D') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int));
AdamGreen	0:6ceefe1c53e4	4053	if (d == 'D' && (v & 0x80000000)) {
AdamGreen	0:6ceefe1c53e4	4054	v = 0 - v;
AdamGreen	0:6ceefe1c53e4	4055	f \|= 8;
AdamGreen	0:6ceefe1c53e4	4056	}
AdamGreen	0:6ceefe1c53e4	4057	i = 0;
AdamGreen	0:6ceefe1c53e4	4058	do {
AdamGreen	0:6ceefe1c53e4	4059	d = (TCHAR)(v % r); v /= r;
AdamGreen	0:6ceefe1c53e4	4060	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
AdamGreen	0:6ceefe1c53e4	4061	s[i++] = d + '0';
AdamGreen	0:6ceefe1c53e4	4062	} while (v && i < sizeof(s) / sizeof(s[0]));
AdamGreen	0:6ceefe1c53e4	4063	if (f & 8) s[i++] = '-';
AdamGreen	0:6ceefe1c53e4	4064	j = i; d = (f & 1) ? '0' : ' ';
AdamGreen	0:6ceefe1c53e4	4065	res = 0;
AdamGreen	0:6ceefe1c53e4	4066	while (!(f & 2) && j++ < w) res += (cc = f_putc(d, fil));
AdamGreen	0:6ceefe1c53e4	4067	do res += (cc = f_putc(s[--i], fil)); while(i);
AdamGreen	0:6ceefe1c53e4	4068	while (j++ < w) res += (cc = f_putc(' ', fil));
AdamGreen	0:6ceefe1c53e4	4069	if (cc != EOF) cc = res;
AdamGreen	0:6ceefe1c53e4	4070	}
AdamGreen	0:6ceefe1c53e4	4071
AdamGreen	0:6ceefe1c53e4	4072	va_end(arp);
AdamGreen	0:6ceefe1c53e4	4073	return (cc == EOF) ? cc : res;
AdamGreen	0:6ceefe1c53e4	4074	}
AdamGreen	0:6ceefe1c53e4	4075
AdamGreen	0:6ceefe1c53e4	4076	#endif /* !_FS_READONLY */
AdamGreen	0:6ceefe1c53e4	4077	#endif /* _USE_STRFUNC */

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Type:	Library
Created:	30 Jul 2012
Imports:	479
Forks:	2
Commits:	2
Dependents:	53
Dependencies:	0
Followers:	4

ff.cpp@1:88f22c32a456, 2012-07-30 (annotated)

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