GPS_Incremental - JEK changes enabling proper recording of IMU/GPS …

Users » jekain314 » Code » GPS_Incremental

james kain / Mbed 2 deprecated GPS_Incremental

JEK changes enabling proper recording of IMU/GPS datastrams - 02-APR-2013

Fork of GPS_Incremental by Dan Matthews

FatFileSystem/ff.cpp@9:b45feb91ba38, 2013-04-19 (annotated)

Committer:: jekain314
Date:: Fri Apr 19 16:21:27 2013 +0000
Revision:: 9:b45feb91ba38
Parent:: 0:c746ee34feae

update to allow better imu gps data collection

Who changed what in which revision?

User	Revision	Line number	New contents of line
dannyman939	0:c746ee34feae	1	/*----------------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2	/ FatFs - FAT file system module R0.09 (C)ChaN, 2011
dannyman939	0:c746ee34feae	3	/-----------------------------------------------------------------------------/
dannyman939	0:c746ee34feae	4	/ FatFs module is a generic FAT file system module for small embedded systems.
dannyman939	0:c746ee34feae	5	/ This is a free software that opened for education, research and commercial
dannyman939	0:c746ee34feae	6	/ developments under license policy of following terms.
dannyman939	0:c746ee34feae	7	/
dannyman939	0:c746ee34feae	8	/ Copyright (C) 2011, ChaN, all right reserved.
dannyman939	0:c746ee34feae	9	/
dannyman939	0:c746ee34feae	10	/ * The FatFs module is a free software and there is NO WARRANTY.
dannyman939	0:c746ee34feae	11	/ * No restriction on use. You can use, modify and redistribute it for
dannyman939	0:c746ee34feae	12	/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
dannyman939	0:c746ee34feae	13	/ * Redistributions of source code must retain the above copyright notice.
dannyman939	0:c746ee34feae	14	/
dannyman939	0:c746ee34feae	15	/-----------------------------------------------------------------------------/
dannyman939	0:c746ee34feae	16	/ Feb 26,'06 R0.00 Prototype.
dannyman939	0:c746ee34feae	17	/
dannyman939	0:c746ee34feae	18	/ Apr 29,'06 R0.01 First stable version.
dannyman939	0:c746ee34feae	19	/
dannyman939	0:c746ee34feae	20	/ Jun 01,'06 R0.02 Added FAT12 support.
dannyman939	0:c746ee34feae	21	/ Removed unbuffered mode.
dannyman939	0:c746ee34feae	22	/ Fixed a problem on small (<32M) partition.
dannyman939	0:c746ee34feae	23	/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
dannyman939	0:c746ee34feae	24	/
dannyman939	0:c746ee34feae	25	/ Sep 22,'06 R0.03 Added f_rename().
dannyman939	0:c746ee34feae	26	/ Changed option _FS_MINIMUM to _FS_MINIMIZE.
dannyman939	0:c746ee34feae	27	/ Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
dannyman939	0:c746ee34feae	28	/ Fixed f_mkdir() creates incorrect directory on FAT32.
dannyman939	0:c746ee34feae	29	/
dannyman939	0:c746ee34feae	30	/ Feb 04,'07 R0.04 Supported multiple drive system.
dannyman939	0:c746ee34feae	31	/ Changed some interfaces for multiple drive system.
dannyman939	0:c746ee34feae	32	/ Changed f_mountdrv() to f_mount().
dannyman939	0:c746ee34feae	33	/ Added f_mkfs().
dannyman939	0:c746ee34feae	34	/ Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
dannyman939	0:c746ee34feae	35	/ Added a capability of extending file size to f_lseek().
dannyman939	0:c746ee34feae	36	/ Added minimization level 3.
dannyman939	0:c746ee34feae	37	/ Fixed an endian sensitive code in f_mkfs().
dannyman939	0:c746ee34feae	38	/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
dannyman939	0:c746ee34feae	39	/ Added FSInfo support.
dannyman939	0:c746ee34feae	40	/ Fixed DBCS name can result FR_INVALID_NAME.
dannyman939	0:c746ee34feae	41	/ Fixed short seek (<= csize) collapses the file object.
dannyman939	0:c746ee34feae	42	/
dannyman939	0:c746ee34feae	43	/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
dannyman939	0:c746ee34feae	44	/ Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
dannyman939	0:c746ee34feae	45	/ Fixed f_mkdir() on FAT32 creates incorrect directory.
dannyman939	0:c746ee34feae	46	/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
dannyman939	0:c746ee34feae	47	/ Fixed off by one error at FAT sub-type determination.
dannyman939	0:c746ee34feae	48	/ Fixed btr in f_read() can be mistruncated.
dannyman939	0:c746ee34feae	49	/ Fixed cached sector is not flushed when create and close without write.
dannyman939	0:c746ee34feae	50	/
dannyman939	0:c746ee34feae	51	/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
dannyman939	0:c746ee34feae	52	/ Improved performance of f_lseek() on moving to the same or following cluster.
dannyman939	0:c746ee34feae	53	/
dannyman939	0:c746ee34feae	54	/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
dannyman939	0:c746ee34feae	55	/ Added long file name feature.
dannyman939	0:c746ee34feae	56	/ Added multiple code page feature.
dannyman939	0:c746ee34feae	57	/ Added re-entrancy for multitask operation.
dannyman939	0:c746ee34feae	58	/ Added auto cluster size selection to f_mkfs().
dannyman939	0:c746ee34feae	59	/ Added rewind option to f_readdir().
dannyman939	0:c746ee34feae	60	/ Changed result code of critical errors.
dannyman939	0:c746ee34feae	61	/ Renamed string functions to avoid name collision.
dannyman939	0:c746ee34feae	62	/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
dannyman939	0:c746ee34feae	63	/ Added multiple sector size feature.
dannyman939	0:c746ee34feae	64	/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
dannyman939	0:c746ee34feae	65	/ Fixed wrong cache control in f_lseek().
dannyman939	0:c746ee34feae	66	/ Added relative path feature.
dannyman939	0:c746ee34feae	67	/ Added f_chdir() and f_chdrive().
dannyman939	0:c746ee34feae	68	/ Added proper case conversion to extended char.
dannyman939	0:c746ee34feae	69	/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
dannyman939	0:c746ee34feae	70	/ Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
dannyman939	0:c746ee34feae	71	/ Fixed name matching error on the 13 char boundary.
dannyman939	0:c746ee34feae	72	/ Added a configuration option, _LFN_UNICODE.
dannyman939	0:c746ee34feae	73	/ Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
dannyman939	0:c746ee34feae	74	/
dannyman939	0:c746ee34feae	75	/ May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
dannyman939	0:c746ee34feae	76	/ Added file lock feature. (_FS_SHARE)
dannyman939	0:c746ee34feae	77	/ Added fast seek feature. (_USE_FASTSEEK)
dannyman939	0:c746ee34feae	78	/ Changed some types on the API, XCHAR->TCHAR.
dannyman939	0:c746ee34feae	79	/ Changed fname member in the FILINFO structure on Unicode cfg.
dannyman939	0:c746ee34feae	80	/ String functions support UTF-8 encoding files on Unicode cfg.
dannyman939	0:c746ee34feae	81	/ Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
dannyman939	0:c746ee34feae	82	/ Added sector erase feature. (_USE_ERASE)
dannyman939	0:c746ee34feae	83	/ Moved file lock semaphore table from fs object to the bss.
dannyman939	0:c746ee34feae	84	/ Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
dannyman939	0:c746ee34feae	85	/ Fixed f_mkfs() creates wrong FAT32 volume.
dannyman939	0:c746ee34feae	86	/ Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
dannyman939	0:c746ee34feae	87	/ f_lseek() reports required table size on creating CLMP.
dannyman939	0:c746ee34feae	88	/ Extended format syntax of f_printf function.
dannyman939	0:c746ee34feae	89	/ Ignores duplicated directory separators in given path names.
dannyman939	0:c746ee34feae	90	/
dannyman939	0:c746ee34feae	91	/ Sep 06,'11 R0.09 f_mkfs() supports multiple partition to finish the multiple partition feature.
dannyman939	0:c746ee34feae	92	/ Added f_fdisk(). (_MULTI_PARTITION = 2)
dannyman939	0:c746ee34feae	93	/---------------------------------------------------------------------------*/
dannyman939	0:c746ee34feae	94
dannyman939	0:c746ee34feae	95	#include "ff.h" /* FatFs configurations and declarations */
dannyman939	0:c746ee34feae	96	#include "diskio.h" /* Declarations of low level disk I/O functions */
dannyman939	0:c746ee34feae	97
dannyman939	0:c746ee34feae	98
dannyman939	0:c746ee34feae	99	/*--------------------------------------------------------------------------
dannyman939	0:c746ee34feae	100
dannyman939	0:c746ee34feae	101	Module Private Definitions
dannyman939	0:c746ee34feae	102
dannyman939	0:c746ee34feae	103	---------------------------------------------------------------------------*/
dannyman939	0:c746ee34feae	104
dannyman939	0:c746ee34feae	105	#if _FATFS != 6502 /* Revision ID */
dannyman939	0:c746ee34feae	106	#error Wrong include file (ff.h).
dannyman939	0:c746ee34feae	107	#endif
dannyman939	0:c746ee34feae	108
dannyman939	0:c746ee34feae	109
dannyman939	0:c746ee34feae	110	/* Definitions on sector size */
dannyman939	0:c746ee34feae	111	#if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
dannyman939	0:c746ee34feae	112	#error Wrong sector size.
dannyman939	0:c746ee34feae	113	#endif
dannyman939	0:c746ee34feae	114	#if _MAX_SS != 512
dannyman939	0:c746ee34feae	115	#define SS(fs) ((fs)->ssize) /* Variable sector size */
dannyman939	0:c746ee34feae	116	#else
dannyman939	0:c746ee34feae	117	#define SS(fs) 512U /* Fixed sector size */
dannyman939	0:c746ee34feae	118	#endif
dannyman939	0:c746ee34feae	119
dannyman939	0:c746ee34feae	120
dannyman939	0:c746ee34feae	121	/* Reentrancy related */
dannyman939	0:c746ee34feae	122	#if _FS_REENTRANT
dannyman939	0:c746ee34feae	123	#if _USE_LFN == 1
dannyman939	0:c746ee34feae	124	#error Static LFN work area must not be used in re-entrant configuration.
dannyman939	0:c746ee34feae	125	#endif
dannyman939	0:c746ee34feae	126	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
dannyman939	0:c746ee34feae	127	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
dannyman939	0:c746ee34feae	128	#else
dannyman939	0:c746ee34feae	129	#define ENTER_FF(fs)
dannyman939	0:c746ee34feae	130	#define LEAVE_FF(fs, res) return res
dannyman939	0:c746ee34feae	131	#endif
dannyman939	0:c746ee34feae	132
dannyman939	0:c746ee34feae	133	#define ABORT(fs, res) { fp->flag \|= FA__ERROR; LEAVE_FF(fs, res); }
dannyman939	0:c746ee34feae	134
dannyman939	0:c746ee34feae	135
dannyman939	0:c746ee34feae	136	/* File shareing feature */
dannyman939	0:c746ee34feae	137	#if _FS_SHARE
dannyman939	0:c746ee34feae	138	#if _FS_READONLY
dannyman939	0:c746ee34feae	139	#error _FS_SHARE must be 0 on read-only cfg.
dannyman939	0:c746ee34feae	140	#endif
dannyman939	0:c746ee34feae	141	typedef struct {
dannyman939	0:c746ee34feae	142	FATFS fs; / File ID 1, volume (NULL:blank entry) */
dannyman939	0:c746ee34feae	143	DWORD clu; /* File ID 2, directory */
dannyman939	0:c746ee34feae	144	WORD idx; /* File ID 3, directory index */
dannyman939	0:c746ee34feae	145	WORD ctr; /* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:write mode */
dannyman939	0:c746ee34feae	146	} FILESEM;
dannyman939	0:c746ee34feae	147	#endif
dannyman939	0:c746ee34feae	148
dannyman939	0:c746ee34feae	149
dannyman939	0:c746ee34feae	150	/* Misc definitions */
dannyman939	0:c746ee34feae	151	#define LD_CLUST(dir) (((DWORD)LD_WORD(dir+DIR_FstClusHI)<<16) \| LD_WORD(dir+DIR_FstClusLO))
dannyman939	0:c746ee34feae	152	#define ST_CLUST(dir,cl) {ST_WORD(dir+DIR_FstClusLO, cl); ST_WORD(dir+DIR_FstClusHI, (DWORD)cl>>16);}
dannyman939	0:c746ee34feae	153
dannyman939	0:c746ee34feae	154
dannyman939	0:c746ee34feae	155	/* DBCS code ranges and SBCS extend char conversion table */
dannyman939	0:c746ee34feae	156
dannyman939	0:c746ee34feae	157	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
dannyman939	0:c746ee34feae	158	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
dannyman939	0:c746ee34feae	159	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
dannyman939	0:c746ee34feae	160	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
dannyman939	0:c746ee34feae	161	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
dannyman939	0:c746ee34feae	162	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
dannyman939	0:c746ee34feae	163	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
dannyman939	0:c746ee34feae	164	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
dannyman939	0:c746ee34feae	165	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
dannyman939	0:c746ee34feae	166
dannyman939	0:c746ee34feae	167	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
dannyman939	0:c746ee34feae	168	#define _DF1S 0x81
dannyman939	0:c746ee34feae	169	#define _DF1E 0xFE
dannyman939	0:c746ee34feae	170	#define _DS1S 0x40
dannyman939	0:c746ee34feae	171	#define _DS1E 0x7E
dannyman939	0:c746ee34feae	172	#define _DS2S 0x80
dannyman939	0:c746ee34feae	173	#define _DS2E 0xFE
dannyman939	0:c746ee34feae	174
dannyman939	0:c746ee34feae	175	#elif _CODE_PAGE == 949 /* Korean */
dannyman939	0:c746ee34feae	176	#define _DF1S 0x81
dannyman939	0:c746ee34feae	177	#define _DF1E 0xFE
dannyman939	0:c746ee34feae	178	#define _DS1S 0x41
dannyman939	0:c746ee34feae	179	#define _DS1E 0x5A
dannyman939	0:c746ee34feae	180	#define _DS2S 0x61
dannyman939	0:c746ee34feae	181	#define _DS2E 0x7A
dannyman939	0:c746ee34feae	182	#define _DS3S 0x81
dannyman939	0:c746ee34feae	183	#define _DS3E 0xFE
dannyman939	0:c746ee34feae	184
dannyman939	0:c746ee34feae	185	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
dannyman939	0:c746ee34feae	186	#define _DF1S 0x81
dannyman939	0:c746ee34feae	187	#define _DF1E 0xFE
dannyman939	0:c746ee34feae	188	#define _DS1S 0x40
dannyman939	0:c746ee34feae	189	#define _DS1E 0x7E
dannyman939	0:c746ee34feae	190	#define _DS2S 0xA1
dannyman939	0:c746ee34feae	191	#define _DS2E 0xFE
dannyman939	0:c746ee34feae	192
dannyman939	0:c746ee34feae	193	#elif _CODE_PAGE == 437 /* U.S. (OEM) */
dannyman939	0:c746ee34feae	194	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	199
dannyman939	0:c746ee34feae	200	#elif _CODE_PAGE == 720 /* Arabic (OEM) */
dannyman939	0:c746ee34feae	201	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	206
dannyman939	0:c746ee34feae	207	#elif _CODE_PAGE == 737 /* Greek (OEM) */
dannyman939	0:c746ee34feae	208	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	213
dannyman939	0:c746ee34feae	214	#elif _CODE_PAGE == 775 /* Baltic (OEM) */
dannyman939	0:c746ee34feae	215	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	220
dannyman939	0:c746ee34feae	221	#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
dannyman939	0:c746ee34feae	222	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	227
dannyman939	0:c746ee34feae	228	#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
dannyman939	0:c746ee34feae	229	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	234
dannyman939	0:c746ee34feae	235	#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
dannyman939	0:c746ee34feae	236	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	241
dannyman939	0:c746ee34feae	242	#elif _CODE_PAGE == 857 /* Turkish (OEM) */
dannyman939	0:c746ee34feae	243	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	248
dannyman939	0:c746ee34feae	249	#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
dannyman939	0:c746ee34feae	250	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	255
dannyman939	0:c746ee34feae	256	#elif _CODE_PAGE == 862 /* Hebrew (OEM) */
dannyman939	0:c746ee34feae	257	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	262
dannyman939	0:c746ee34feae	263	#elif _CODE_PAGE == 866 /* Russian (OEM) */
dannyman939	0:c746ee34feae	264	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	269
dannyman939	0:c746ee34feae	270	#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
dannyman939	0:c746ee34feae	271	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	276
dannyman939	0:c746ee34feae	277	#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
dannyman939	0:c746ee34feae	278	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	283
dannyman939	0:c746ee34feae	284	#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
dannyman939	0:c746ee34feae	285	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	290
dannyman939	0:c746ee34feae	291	#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
dannyman939	0:c746ee34feae	292	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	297
dannyman939	0:c746ee34feae	298	#elif _CODE_PAGE == 1253 /* Greek (Windows) */
dannyman939	0:c746ee34feae	299	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	304
dannyman939	0:c746ee34feae	305	#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
dannyman939	0:c746ee34feae	306	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	311
dannyman939	0:c746ee34feae	312	#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
dannyman939	0:c746ee34feae	313	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	318
dannyman939	0:c746ee34feae	319	#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
dannyman939	0:c746ee34feae	320	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	325
dannyman939	0:c746ee34feae	326	#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
dannyman939	0:c746ee34feae	327	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	332
dannyman939	0:c746ee34feae	333	#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
dannyman939	0:c746ee34feae	334	#define _DF1S 0
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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, \
dannyman939	0:c746ee34feae	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}
dannyman939	0:c746ee34feae	339
dannyman939	0:c746ee34feae	340	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
dannyman939	0:c746ee34feae	341	#if _USE_LFN
dannyman939	0:c746ee34feae	342	#error Cannot use LFN feature without valid code page.
dannyman939	0:c746ee34feae	343	#endif
dannyman939	0:c746ee34feae	344	#define _DF1S 0
dannyman939	0:c746ee34feae	345
dannyman939	0:c746ee34feae	346	#else
dannyman939	0:c746ee34feae	347	#error Unknown code page
dannyman939	0:c746ee34feae	348
dannyman939	0:c746ee34feae	349	#endif
dannyman939	0:c746ee34feae	350
dannyman939	0:c746ee34feae	351
dannyman939	0:c746ee34feae	352	/* Character code support macros */
dannyman939	0:c746ee34feae	353	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
dannyman939	0:c746ee34feae	354	#define IsLower(c) (((c)>='a')&&((c)<='z'))
dannyman939	0:c746ee34feae	355	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
dannyman939	0:c746ee34feae	356
dannyman939	0:c746ee34feae	357	#if _DF1S /* Code page is DBCS */
dannyman939	0:c746ee34feae	358
dannyman939	0:c746ee34feae	359	#ifdef _DF2S /* Two 1st byte areas */
dannyman939	0:c746ee34feae	360	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
dannyman939	0:c746ee34feae	361	#else /* One 1st byte area */
dannyman939	0:c746ee34feae	362	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
dannyman939	0:c746ee34feae	363	#endif
dannyman939	0:c746ee34feae	364
dannyman939	0:c746ee34feae	365	#ifdef _DS3S /* Three 2nd byte areas */
dannyman939	0:c746ee34feae	366	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
dannyman939	0:c746ee34feae	367	#else /* Two 2nd byte areas */
dannyman939	0:c746ee34feae	368	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
dannyman939	0:c746ee34feae	369	#endif
dannyman939	0:c746ee34feae	370
dannyman939	0:c746ee34feae	371	#else /* Code page is SBCS */
dannyman939	0:c746ee34feae	372
dannyman939	0:c746ee34feae	373	#define IsDBCS1(c) 0
dannyman939	0:c746ee34feae	374	#define IsDBCS2(c) 0
dannyman939	0:c746ee34feae	375
dannyman939	0:c746ee34feae	376	#endif /* _DF1S */
dannyman939	0:c746ee34feae	377
dannyman939	0:c746ee34feae	378
dannyman939	0:c746ee34feae	379	/* Name status flags */
dannyman939	0:c746ee34feae	380	#define NS 11 /* Index of name status byte in fn[] */
dannyman939	0:c746ee34feae	381	#define NS_LOSS 0x01 /* Out of 8.3 format */
dannyman939	0:c746ee34feae	382	#define NS_LFN 0x02 /* Force to create LFN entry */
dannyman939	0:c746ee34feae	383	#define NS_LAST 0x04 /* Last segment */
dannyman939	0:c746ee34feae	384	#define NS_BODY 0x08 /* Lower case flag (body) */
dannyman939	0:c746ee34feae	385	#define NS_EXT 0x10 /* Lower case flag (ext) */
dannyman939	0:c746ee34feae	386	#define NS_DOT 0x20 /* Dot entry */
dannyman939	0:c746ee34feae	387
dannyman939	0:c746ee34feae	388
dannyman939	0:c746ee34feae	389	/* FAT sub-type boundaries */
dannyman939	0:c746ee34feae	390	/* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */
dannyman939	0:c746ee34feae	391	#define MIN_FAT16 4086 /* Minimum number of clusters for FAT16 */
dannyman939	0:c746ee34feae	392	#define MIN_FAT32 65526 /* Minimum number of clusters for FAT32 */
dannyman939	0:c746ee34feae	393
dannyman939	0:c746ee34feae	394
dannyman939	0:c746ee34feae	395	/* FatFs refers the members in the FAT structures as byte array instead of
dannyman939	0:c746ee34feae	396	/ structure member because the structure is not binary compatible between
dannyman939	0:c746ee34feae	397	/ different platforms */
dannyman939	0:c746ee34feae	398
dannyman939	0:c746ee34feae	399	#define BS_jmpBoot 0 /* Jump instruction (3) */
dannyman939	0:c746ee34feae	400	#define BS_OEMName 3 /* OEM name (8) */
dannyman939	0:c746ee34feae	401	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
dannyman939	0:c746ee34feae	402	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
dannyman939	0:c746ee34feae	403	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
dannyman939	0:c746ee34feae	404	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
dannyman939	0:c746ee34feae	405	#define BPB_RootEntCnt 17 /* Number of root dir entries for FAT12/16 (2) */
dannyman939	0:c746ee34feae	406	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
dannyman939	0:c746ee34feae	407	#define BPB_Media 21 /* Media descriptor (1) */
dannyman939	0:c746ee34feae	408	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
dannyman939	0:c746ee34feae	409	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
dannyman939	0:c746ee34feae	410	#define BPB_NumHeads 26 /* Number of heads (2) */
dannyman939	0:c746ee34feae	411	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
dannyman939	0:c746ee34feae	412	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
dannyman939	0:c746ee34feae	413	#define BS_DrvNum 36 /* Physical drive number (2) */
dannyman939	0:c746ee34feae	414	#define BS_BootSig 38 /* Extended boot signature (1) */
dannyman939	0:c746ee34feae	415	#define BS_VolID 39 /* Volume serial number (4) */
dannyman939	0:c746ee34feae	416	#define BS_VolLab 43 /* Volume label (8) */
dannyman939	0:c746ee34feae	417	#define BS_FilSysType 54 /* File system type (1) */
dannyman939	0:c746ee34feae	418	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
dannyman939	0:c746ee34feae	419	#define BPB_ExtFlags 40 /* Extended flags (2) */
dannyman939	0:c746ee34feae	420	#define BPB_FSVer 42 /* File system version (2) */
dannyman939	0:c746ee34feae	421	#define BPB_RootClus 44 /* Root dir first cluster (4) */
dannyman939	0:c746ee34feae	422	#define BPB_FSInfo 48 /* Offset of FSInfo sector (2) */
dannyman939	0:c746ee34feae	423	#define BPB_BkBootSec 50 /* Offset of backup boot sectot (2) */
dannyman939	0:c746ee34feae	424	#define BS_DrvNum32 64 /* Physical drive number (2) */
dannyman939	0:c746ee34feae	425	#define BS_BootSig32 66 /* Extended boot signature (1) */
dannyman939	0:c746ee34feae	426	#define BS_VolID32 67 /* Volume serial number (4) */
dannyman939	0:c746ee34feae	427	#define BS_VolLab32 71 /* Volume label (8) */
dannyman939	0:c746ee34feae	428	#define BS_FilSysType32 82 /* File system type (1) */
dannyman939	0:c746ee34feae	429	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
dannyman939	0:c746ee34feae	430	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
dannyman939	0:c746ee34feae	431	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
dannyman939	0:c746ee34feae	432	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
dannyman939	0:c746ee34feae	433	#define MBR_Table 446 /* MBR: Partition table offset (2) */
dannyman939	0:c746ee34feae	434	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
dannyman939	0:c746ee34feae	435	#define BS_55AA 510 /* Boot sector signature (2) */
dannyman939	0:c746ee34feae	436
dannyman939	0:c746ee34feae	437	#define DIR_Name 0 /* Short file name (11) */
dannyman939	0:c746ee34feae	438	#define DIR_Attr 11 /* Attribute (1) */
dannyman939	0:c746ee34feae	439	#define DIR_NTres 12 /* NT flag (1) */
dannyman939	0:c746ee34feae	440	#define DIR_CrtTime 14 /* Created time (2) */
dannyman939	0:c746ee34feae	441	#define DIR_CrtDate 16 /* Created date (2) */
dannyman939	0:c746ee34feae	442	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
dannyman939	0:c746ee34feae	443	#define DIR_WrtTime 22 /* Modified time (2) */
dannyman939	0:c746ee34feae	444	#define DIR_WrtDate 24 /* Modified date (2) */
dannyman939	0:c746ee34feae	445	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
dannyman939	0:c746ee34feae	446	#define DIR_FileSize 28 /* File size (4) */
dannyman939	0:c746ee34feae	447	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
dannyman939	0:c746ee34feae	448	#define LDIR_Attr 11 /* LFN attribute (1) */
dannyman939	0:c746ee34feae	449	#define LDIR_Type 12 /* LFN type (1) */
dannyman939	0:c746ee34feae	450	#define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
dannyman939	0:c746ee34feae	451	#define LDIR_FstClusLO 26 /* Filled by zero (0) */
dannyman939	0:c746ee34feae	452	#define SZ_DIR 32 /* Size of a directory entry */
dannyman939	0:c746ee34feae	453	#define LLE 0x40 /* Last long entry flag in LDIR_Ord */
dannyman939	0:c746ee34feae	454	#define DDE 0xE5 /* Deleted directory enrty mark in DIR_Name[0] */
dannyman939	0:c746ee34feae	455	#define NDDE 0x05 /* Replacement of a character collides with DDE */
dannyman939	0:c746ee34feae	456
dannyman939	0:c746ee34feae	457
dannyman939	0:c746ee34feae	458	/------------------------------------------------------------/
dannyman939	0:c746ee34feae	459	/* Module private work area */
dannyman939	0:c746ee34feae	460	/------------------------------------------------------------/
dannyman939	0:c746ee34feae	461	/* Note that uninitialized variables with static duration are
dannyman939	0:c746ee34feae	462	/ zeroed/nulled at start-up. If not, the compiler or start-up
dannyman939	0:c746ee34feae	463	/ routine is out of ANSI-C standard.
dannyman939	0:c746ee34feae	464	*/
dannyman939	0:c746ee34feae	465
dannyman939	0:c746ee34feae	466	#if _VOLUMES
dannyman939	0:c746ee34feae	467	static
dannyman939	0:c746ee34feae	468	FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
dannyman939	0:c746ee34feae	469	#else
dannyman939	0:c746ee34feae	470	#error Number of volumes must not be 0.
dannyman939	0:c746ee34feae	471	#endif
dannyman939	0:c746ee34feae	472
dannyman939	0:c746ee34feae	473	static
dannyman939	0:c746ee34feae	474	WORD Fsid; /* File system mount ID */
dannyman939	0:c746ee34feae	475
dannyman939	0:c746ee34feae	476	#if _FS_RPATH
dannyman939	0:c746ee34feae	477	static
dannyman939	0:c746ee34feae	478	BYTE CurrVol; /* Current drive */
dannyman939	0:c746ee34feae	479	#endif
dannyman939	0:c746ee34feae	480
dannyman939	0:c746ee34feae	481	#if _FS_SHARE
dannyman939	0:c746ee34feae	482	static
dannyman939	0:c746ee34feae	483	FILESEM Files[_FS_SHARE]; /* File lock semaphores */
dannyman939	0:c746ee34feae	484	#endif
dannyman939	0:c746ee34feae	485
dannyman939	0:c746ee34feae	486	#if _USE_LFN == 0 /* No LFN feature */
dannyman939	0:c746ee34feae	487	#define DEF_NAMEBUF BYTE sfn[12]
dannyman939	0:c746ee34feae	488	#define INIT_BUF(dobj) (dobj).fn = sfn
dannyman939	0:c746ee34feae	489	#define FREE_BUF()
dannyman939	0:c746ee34feae	490
dannyman939	0:c746ee34feae	491	#elif _USE_LFN == 1 /* LFN feature with static working buffer */
dannyman939	0:c746ee34feae	492	static WCHAR LfnBuf[_MAX_LFN+1];
dannyman939	0:c746ee34feae	493	#define DEF_NAMEBUF BYTE sfn[12]
dannyman939	0:c746ee34feae	494	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
dannyman939	0:c746ee34feae	495	#define FREE_BUF()
dannyman939	0:c746ee34feae	496
dannyman939	0:c746ee34feae	497	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
dannyman939	0:c746ee34feae	498	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
dannyman939	0:c746ee34feae	499	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
dannyman939	0:c746ee34feae	500	#define FREE_BUF()
dannyman939	0:c746ee34feae	501
dannyman939	0:c746ee34feae	502	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
dannyman939	0:c746ee34feae	503	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
dannyman939	0:c746ee34feae	504	#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
dannyman939	0:c746ee34feae	505	if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
dannyman939	0:c746ee34feae	506	(dobj).lfn = lfn; (dobj).fn = sfn; }
dannyman939	0:c746ee34feae	507	#define FREE_BUF() ff_memfree(lfn)
dannyman939	0:c746ee34feae	508
dannyman939	0:c746ee34feae	509	#else
dannyman939	0:c746ee34feae	510	#error Wrong LFN configuration.
dannyman939	0:c746ee34feae	511	#endif
dannyman939	0:c746ee34feae	512
dannyman939	0:c746ee34feae	513
dannyman939	0:c746ee34feae	514
dannyman939	0:c746ee34feae	515
dannyman939	0:c746ee34feae	516	/*--------------------------------------------------------------------------
dannyman939	0:c746ee34feae	517
dannyman939	0:c746ee34feae	518	Module Private Functions
dannyman939	0:c746ee34feae	519
dannyman939	0:c746ee34feae	520	---------------------------------------------------------------------------*/
dannyman939	0:c746ee34feae	521
dannyman939	0:c746ee34feae	522
dannyman939	0:c746ee34feae	523	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	524	/* String functions */
dannyman939	0:c746ee34feae	525	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	526
dannyman939	0:c746ee34feae	527	/* Copy memory to memory */
dannyman939	0:c746ee34feae	528	static
dannyman939	0:c746ee34feae	529	void mem_cpy (void* dst, const void* src, UINT cnt) {
dannyman939	0:c746ee34feae	530	BYTE d = (BYTE)dst;
dannyman939	0:c746ee34feae	531	const BYTE s = (const BYTE)src;
dannyman939	0:c746ee34feae	532
dannyman939	0:c746ee34feae	533	#if _WORD_ACCESS == 1
dannyman939	0:c746ee34feae	534	while (cnt >= sizeof(int)) {
dannyman939	0:c746ee34feae	535	(int)d = (int)s;
dannyman939	0:c746ee34feae	536	d += sizeof(int); s += sizeof(int);
dannyman939	0:c746ee34feae	537	cnt -= sizeof(int);
dannyman939	0:c746ee34feae	538	}
dannyman939	0:c746ee34feae	539	#endif
dannyman939	0:c746ee34feae	540	while (cnt--)
dannyman939	0:c746ee34feae	541	d++ = s++;
dannyman939	0:c746ee34feae	542	}
dannyman939	0:c746ee34feae	543
dannyman939	0:c746ee34feae	544	/* Fill memory */
dannyman939	0:c746ee34feae	545	static
dannyman939	0:c746ee34feae	546	void mem_set (void* dst, int val, UINT cnt) {
dannyman939	0:c746ee34feae	547	BYTE d = (BYTE)dst;
dannyman939	0:c746ee34feae	548
dannyman939	0:c746ee34feae	549	while (cnt--)
dannyman939	0:c746ee34feae	550	*d++ = (BYTE)val;
dannyman939	0:c746ee34feae	551	}
dannyman939	0:c746ee34feae	552
dannyman939	0:c746ee34feae	553	/* Compare memory to memory */
dannyman939	0:c746ee34feae	554	static
dannyman939	0:c746ee34feae	555	int mem_cmp (const void* dst, const void* src, UINT cnt) {
dannyman939	0:c746ee34feae	556	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
dannyman939	0:c746ee34feae	557	int r = 0;
dannyman939	0:c746ee34feae	558
dannyman939	0:c746ee34feae	559	while (cnt-- && (r = d++ - s++) == 0) ;
dannyman939	0:c746ee34feae	560	return r;
dannyman939	0:c746ee34feae	561	}
dannyman939	0:c746ee34feae	562
dannyman939	0:c746ee34feae	563	/* Check if chr is contained in the string */
dannyman939	0:c746ee34feae	564	static
dannyman939	0:c746ee34feae	565	int chk_chr (const char* str, int chr) {
dannyman939	0:c746ee34feae	566	while (str && str != chr) str++;
dannyman939	0:c746ee34feae	567	return *str;
dannyman939	0:c746ee34feae	568	}
dannyman939	0:c746ee34feae	569
dannyman939	0:c746ee34feae	570
dannyman939	0:c746ee34feae	571
dannyman939	0:c746ee34feae	572	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	573	/* Request/Release grant to access the volume */
dannyman939	0:c746ee34feae	574	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	575	#if _FS_REENTRANT
dannyman939	0:c746ee34feae	576
dannyman939	0:c746ee34feae	577	static
dannyman939	0:c746ee34feae	578	int lock_fs (
dannyman939	0:c746ee34feae	579	FATFS fs / File system object */
dannyman939	0:c746ee34feae	580	)
dannyman939	0:c746ee34feae	581	{
dannyman939	0:c746ee34feae	582	return ff_req_grant(fs->sobj);
dannyman939	0:c746ee34feae	583	}
dannyman939	0:c746ee34feae	584
dannyman939	0:c746ee34feae	585
dannyman939	0:c746ee34feae	586	static
dannyman939	0:c746ee34feae	587	void unlock_fs (
dannyman939	0:c746ee34feae	588	FATFS fs, / File system object */
dannyman939	0:c746ee34feae	589	FRESULT res /* Result code to be returned */
dannyman939	0:c746ee34feae	590	)
dannyman939	0:c746ee34feae	591	{
dannyman939	0:c746ee34feae	592	if (res != FR_NOT_ENABLED &&
dannyman939	0:c746ee34feae	593	res != FR_INVALID_DRIVE &&
dannyman939	0:c746ee34feae	594	res != FR_INVALID_OBJECT &&
dannyman939	0:c746ee34feae	595	res != FR_TIMEOUT) {
dannyman939	0:c746ee34feae	596	ff_rel_grant(fs->sobj);
dannyman939	0:c746ee34feae	597	}
dannyman939	0:c746ee34feae	598	}
dannyman939	0:c746ee34feae	599	#endif
dannyman939	0:c746ee34feae	600
dannyman939	0:c746ee34feae	601
dannyman939	0:c746ee34feae	602
dannyman939	0:c746ee34feae	603	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	604	/* File shareing control functions */
dannyman939	0:c746ee34feae	605	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	606	#if _FS_SHARE
dannyman939	0:c746ee34feae	607
dannyman939	0:c746ee34feae	608	static
dannyman939	0:c746ee34feae	609	FRESULT chk_lock ( /* Check if the file can be accessed */
dannyman939	0:c746ee34feae	610	FATFS_DIR* dj, /* Directory object pointing the file to be checked */
dannyman939	0:c746ee34feae	611	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
dannyman939	0:c746ee34feae	612	)
dannyman939	0:c746ee34feae	613	{
dannyman939	0:c746ee34feae	614	UINT i, be;
dannyman939	0:c746ee34feae	615
dannyman939	0:c746ee34feae	616	/* Search file semaphore table */
dannyman939	0:c746ee34feae	617	for (i = be = 0; i < _FS_SHARE; i++) {
dannyman939	0:c746ee34feae	618	if (Files[i].fs) { /* Existing entry */
dannyman939	0:c746ee34feae	619	if (Files[i].fs == dj->fs && /* Check if the file matched with an open file */
dannyman939	0:c746ee34feae	620	Files[i].clu == dj->sclust &&
dannyman939	0:c746ee34feae	621	Files[i].idx == dj->index) break;
dannyman939	0:c746ee34feae	622	} else { /* Blank entry */
dannyman939	0:c746ee34feae	623	be++;
dannyman939	0:c746ee34feae	624	}
dannyman939	0:c746ee34feae	625	}
dannyman939	0:c746ee34feae	626	if (i == _FS_SHARE) /* The file is not opened */
dannyman939	0:c746ee34feae	627	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new file? */
dannyman939	0:c746ee34feae	628
dannyman939	0:c746ee34feae	629	/* The file has been opened. Reject any open against writing file and all write mode open */
dannyman939	0:c746ee34feae	630	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
dannyman939	0:c746ee34feae	631	}
dannyman939	0:c746ee34feae	632
dannyman939	0:c746ee34feae	633
dannyman939	0:c746ee34feae	634	static
dannyman939	0:c746ee34feae	635	int enq_lock (void) /* Check if an entry is available for a new file */
dannyman939	0:c746ee34feae	636	{
dannyman939	0:c746ee34feae	637	UINT i;
dannyman939	0:c746ee34feae	638
dannyman939	0:c746ee34feae	639	for (i = 0; i < _FS_SHARE && Files[i].fs; i++) ;
dannyman939	0:c746ee34feae	640	return (i == _FS_SHARE) ? 0 : 1;
dannyman939	0:c746ee34feae	641	}
dannyman939	0:c746ee34feae	642
dannyman939	0:c746ee34feae	643
dannyman939	0:c746ee34feae	644	static
dannyman939	0:c746ee34feae	645	UINT inc_lock ( /* Increment file open counter and returns its index (0:int error) */
dannyman939	0:c746ee34feae	646	FATFS_DIR* dj, /* Directory object pointing the file to register or increment */
dannyman939	0:c746ee34feae	647	int acc /* Desired access mode (0:Read, !0:Write) */
dannyman939	0:c746ee34feae	648	)
dannyman939	0:c746ee34feae	649	{
dannyman939	0:c746ee34feae	650	UINT i;
dannyman939	0:c746ee34feae	651
dannyman939	0:c746ee34feae	652
dannyman939	0:c746ee34feae	653	for (i = 0; i < _FS_SHARE; i++) { /* Find the file */
dannyman939	0:c746ee34feae	654	if (Files[i].fs == dj->fs &&
dannyman939	0:c746ee34feae	655	Files[i].clu == dj->sclust &&
dannyman939	0:c746ee34feae	656	Files[i].idx == dj->index) break;
dannyman939	0:c746ee34feae	657	}
dannyman939	0:c746ee34feae	658
dannyman939	0:c746ee34feae	659	if (i == _FS_SHARE) { /* Not opened. Register it as new. */
dannyman939	0:c746ee34feae	660	for (i = 0; i < _FS_SHARE && Files[i].fs; i++) ;
dannyman939	0:c746ee34feae	661	if (i == _FS_SHARE) return 0; /* No space to register (int err) */
dannyman939	0:c746ee34feae	662	Files[i].fs = dj->fs;
dannyman939	0:c746ee34feae	663	Files[i].clu = dj->sclust;
dannyman939	0:c746ee34feae	664	Files[i].idx = dj->index;
dannyman939	0:c746ee34feae	665	Files[i].ctr = 0;
dannyman939	0:c746ee34feae	666	}
dannyman939	0:c746ee34feae	667
dannyman939	0:c746ee34feae	668	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
dannyman939	0:c746ee34feae	669
dannyman939	0:c746ee34feae	670	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
dannyman939	0:c746ee34feae	671
dannyman939	0:c746ee34feae	672	return i + 1;
dannyman939	0:c746ee34feae	673	}
dannyman939	0:c746ee34feae	674
dannyman939	0:c746ee34feae	675
dannyman939	0:c746ee34feae	676	static
dannyman939	0:c746ee34feae	677	FRESULT dec_lock ( /* Decrement file open counter */
dannyman939	0:c746ee34feae	678	UINT i /* Semaphore index */
dannyman939	0:c746ee34feae	679	)
dannyman939	0:c746ee34feae	680	{
dannyman939	0:c746ee34feae	681	WORD n;
dannyman939	0:c746ee34feae	682	FRESULT res;
dannyman939	0:c746ee34feae	683
dannyman939	0:c746ee34feae	684
dannyman939	0:c746ee34feae	685	if (--i < _FS_SHARE) {
dannyman939	0:c746ee34feae	686	n = Files[i].ctr;
dannyman939	0:c746ee34feae	687	if (n == 0x100) n = 0;
dannyman939	0:c746ee34feae	688	if (n) n--;
dannyman939	0:c746ee34feae	689	Files[i].ctr = n;
dannyman939	0:c746ee34feae	690	if (!n) Files[i].fs = 0;
dannyman939	0:c746ee34feae	691	res = FR_OK;
dannyman939	0:c746ee34feae	692	} else {
dannyman939	0:c746ee34feae	693	res = FR_INT_ERR;
dannyman939	0:c746ee34feae	694	}
dannyman939	0:c746ee34feae	695	return res;
dannyman939	0:c746ee34feae	696	}
dannyman939	0:c746ee34feae	697
dannyman939	0:c746ee34feae	698
dannyman939	0:c746ee34feae	699	static
dannyman939	0:c746ee34feae	700	void clear_lock ( /* Clear lock entries of the volume */
dannyman939	0:c746ee34feae	701	FATFS *fs
dannyman939	0:c746ee34feae	702	)
dannyman939	0:c746ee34feae	703	{
dannyman939	0:c746ee34feae	704	UINT i;
dannyman939	0:c746ee34feae	705
dannyman939	0:c746ee34feae	706	for (i = 0; i < _FS_SHARE; i++) {
dannyman939	0:c746ee34feae	707	if (Files[i].fs == fs) Files[i].fs = 0;
dannyman939	0:c746ee34feae	708	}
dannyman939	0:c746ee34feae	709	}
dannyman939	0:c746ee34feae	710	#endif
dannyman939	0:c746ee34feae	711
dannyman939	0:c746ee34feae	712
dannyman939	0:c746ee34feae	713
dannyman939	0:c746ee34feae	714	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	715	/* Change window offset */
dannyman939	0:c746ee34feae	716	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	717
dannyman939	0:c746ee34feae	718	static
dannyman939	0:c746ee34feae	719	FRESULT move_window (
dannyman939	0:c746ee34feae	720	FATFS fs, / File system object */
dannyman939	0:c746ee34feae	721	DWORD sector /* Sector number to make appearance in the fs->win[] */
dannyman939	0:c746ee34feae	722	) /* Move to zero only writes back dirty window */
dannyman939	0:c746ee34feae	723	{
dannyman939	0:c746ee34feae	724	DWORD wsect;
dannyman939	0:c746ee34feae	725
dannyman939	0:c746ee34feae	726
dannyman939	0:c746ee34feae	727	wsect = fs->winsect;
dannyman939	0:c746ee34feae	728	if (wsect != sector) { /* Changed current window */
dannyman939	0:c746ee34feae	729	#if !_FS_READONLY
dannyman939	0:c746ee34feae	730	if (fs->wflag) { /* Write back dirty window if needed */
dannyman939	0:c746ee34feae	731	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK)
dannyman939	0:c746ee34feae	732	return FR_DISK_ERR;
dannyman939	0:c746ee34feae	733	fs->wflag = 0;
dannyman939	0:c746ee34feae	734	if (wsect < (fs->fatbase + fs->fsize)) { /* In FAT area */
dannyman939	0:c746ee34feae	735	BYTE nf;
dannyman939	0:c746ee34feae	736	for (nf = fs->n_fats; nf > 1; nf--) { /* Reflect the change to all FAT copies */
dannyman939	0:c746ee34feae	737	wsect += fs->fsize;
dannyman939	0:c746ee34feae	738	disk_write(fs->drv, fs->win, wsect, 1);
dannyman939	0:c746ee34feae	739	}
dannyman939	0:c746ee34feae	740	}
dannyman939	0:c746ee34feae	741	}
dannyman939	0:c746ee34feae	742	#endif
dannyman939	0:c746ee34feae	743	if (sector) {
dannyman939	0:c746ee34feae	744	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK)
dannyman939	0:c746ee34feae	745	return FR_DISK_ERR;
dannyman939	0:c746ee34feae	746	fs->winsect = sector;
dannyman939	0:c746ee34feae	747	}
dannyman939	0:c746ee34feae	748	}
dannyman939	0:c746ee34feae	749
dannyman939	0:c746ee34feae	750	return FR_OK;
dannyman939	0:c746ee34feae	751	}
dannyman939	0:c746ee34feae	752
dannyman939	0:c746ee34feae	753
dannyman939	0:c746ee34feae	754
dannyman939	0:c746ee34feae	755
dannyman939	0:c746ee34feae	756	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	757	/* Clean-up cached data */
dannyman939	0:c746ee34feae	758	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	759	#if !_FS_READONLY
dannyman939	0:c746ee34feae	760	static
dannyman939	0:c746ee34feae	761	FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */
dannyman939	0:c746ee34feae	762	FATFS fs / File system object */
dannyman939	0:c746ee34feae	763	)
dannyman939	0:c746ee34feae	764	{
dannyman939	0:c746ee34feae	765	FRESULT res;
dannyman939	0:c746ee34feae	766
dannyman939	0:c746ee34feae	767
dannyman939	0:c746ee34feae	768	res = move_window(fs, 0);
dannyman939	0:c746ee34feae	769	if (res == FR_OK) {
dannyman939	0:c746ee34feae	770	/* Update FSInfo sector if needed */
dannyman939	0:c746ee34feae	771	if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
dannyman939	0:c746ee34feae	772	fs->winsect = 0;
dannyman939	0:c746ee34feae	773	/* Create FSInfo structure */
dannyman939	0:c746ee34feae	774	mem_set(fs->win, 0, 512);
dannyman939	0:c746ee34feae	775	ST_WORD(fs->win+BS_55AA, 0xAA55);
dannyman939	0:c746ee34feae	776	ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
dannyman939	0:c746ee34feae	777	ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
dannyman939	0:c746ee34feae	778	ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
dannyman939	0:c746ee34feae	779	ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
dannyman939	0:c746ee34feae	780	/* Write it into the FSInfo sector */
dannyman939	0:c746ee34feae	781	disk_write(fs->drv, fs->win, fs->fsi_sector, 1);
dannyman939	0:c746ee34feae	782	fs->fsi_flag = 0;
dannyman939	0:c746ee34feae	783	}
dannyman939	0:c746ee34feae	784	/* Make sure that no pending write process in the physical drive */
dannyman939	0:c746ee34feae	785	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
dannyman939	0:c746ee34feae	786	res = FR_DISK_ERR;
dannyman939	0:c746ee34feae	787	}
dannyman939	0:c746ee34feae	788
dannyman939	0:c746ee34feae	789	return res;
dannyman939	0:c746ee34feae	790	}
dannyman939	0:c746ee34feae	791	#endif
dannyman939	0:c746ee34feae	792
dannyman939	0:c746ee34feae	793
dannyman939	0:c746ee34feae	794
dannyman939	0:c746ee34feae	795
dannyman939	0:c746ee34feae	796	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	797	/* Get sector# from cluster# */
dannyman939	0:c746ee34feae	798	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	799
dannyman939	0:c746ee34feae	800
dannyman939	0:c746ee34feae	801	DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
dannyman939	0:c746ee34feae	802	FATFS fs, / File system object */
dannyman939	0:c746ee34feae	803	DWORD clst /* Cluster# to be converted */
dannyman939	0:c746ee34feae	804	)
dannyman939	0:c746ee34feae	805	{
dannyman939	0:c746ee34feae	806	clst -= 2;
dannyman939	0:c746ee34feae	807	if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
dannyman939	0:c746ee34feae	808	return clst * fs->csize + fs->database;
dannyman939	0:c746ee34feae	809	}
dannyman939	0:c746ee34feae	810
dannyman939	0:c746ee34feae	811
dannyman939	0:c746ee34feae	812
dannyman939	0:c746ee34feae	813
dannyman939	0:c746ee34feae	814	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	815	/* FAT access - Read value of a FAT entry */
dannyman939	0:c746ee34feae	816	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	817
dannyman939	0:c746ee34feae	818
dannyman939	0:c746ee34feae	819	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
dannyman939	0:c746ee34feae	820	FATFS fs, / File system object */
dannyman939	0:c746ee34feae	821	DWORD clst /* Cluster# to get the link information */
dannyman939	0:c746ee34feae	822	)
dannyman939	0:c746ee34feae	823	{
dannyman939	0:c746ee34feae	824	UINT wc, bc;
dannyman939	0:c746ee34feae	825	BYTE *p;
dannyman939	0:c746ee34feae	826
dannyman939	0:c746ee34feae	827
dannyman939	0:c746ee34feae	828	if (clst < 2 \|\| clst >= fs->n_fatent) /* Chack range */
dannyman939	0:c746ee34feae	829	return 1;
dannyman939	0:c746ee34feae	830
dannyman939	0:c746ee34feae	831	switch (fs->fs_type) {
dannyman939	0:c746ee34feae	832	case FS_FAT12 :
dannyman939	0:c746ee34feae	833	bc = (UINT)clst; bc += bc / 2;
dannyman939	0:c746ee34feae	834	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
dannyman939	0:c746ee34feae	835	wc = fs->win[bc % SS(fs)]; bc++;
dannyman939	0:c746ee34feae	836	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
dannyman939	0:c746ee34feae	837	wc \|= fs->win[bc % SS(fs)] << 8;
dannyman939	0:c746ee34feae	838	return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
dannyman939	0:c746ee34feae	839
dannyman939	0:c746ee34feae	840	case FS_FAT16 :
dannyman939	0:c746ee34feae	841	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
dannyman939	0:c746ee34feae	842	p = &fs->win[clst * 2 % SS(fs)];
dannyman939	0:c746ee34feae	843	return LD_WORD(p);
dannyman939	0:c746ee34feae	844
dannyman939	0:c746ee34feae	845	case FS_FAT32 :
dannyman939	0:c746ee34feae	846	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
dannyman939	0:c746ee34feae	847	p = &fs->win[clst * 4 % SS(fs)];
dannyman939	0:c746ee34feae	848	return LD_DWORD(p) & 0x0FFFFFFF;
dannyman939	0:c746ee34feae	849	}
dannyman939	0:c746ee34feae	850
dannyman939	0:c746ee34feae	851	return 0xFFFFFFFF; /* An error occurred at the disk I/O layer */
dannyman939	0:c746ee34feae	852	}
dannyman939	0:c746ee34feae	853
dannyman939	0:c746ee34feae	854
dannyman939	0:c746ee34feae	855
dannyman939	0:c746ee34feae	856
dannyman939	0:c746ee34feae	857	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	858	/* FAT access - Change value of a FAT entry */
dannyman939	0:c746ee34feae	859	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	860	#if !_FS_READONLY
dannyman939	0:c746ee34feae	861
dannyman939	0:c746ee34feae	862	FRESULT put_fat (
dannyman939	0:c746ee34feae	863	FATFS fs, / File system object */
dannyman939	0:c746ee34feae	864	DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
dannyman939	0:c746ee34feae	865	DWORD val /* New value to mark the cluster */
dannyman939	0:c746ee34feae	866	)
dannyman939	0:c746ee34feae	867	{
dannyman939	0:c746ee34feae	868	UINT bc;
dannyman939	0:c746ee34feae	869	BYTE *p;
dannyman939	0:c746ee34feae	870	FRESULT res;
dannyman939	0:c746ee34feae	871
dannyman939	0:c746ee34feae	872
dannyman939	0:c746ee34feae	873	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
dannyman939	0:c746ee34feae	874	res = FR_INT_ERR;
dannyman939	0:c746ee34feae	875
dannyman939	0:c746ee34feae	876	} else {
dannyman939	0:c746ee34feae	877	switch (fs->fs_type) {
dannyman939	0:c746ee34feae	878	case FS_FAT12 :
dannyman939	0:c746ee34feae	879	bc = clst; bc += bc / 2;
dannyman939	0:c746ee34feae	880	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
dannyman939	0:c746ee34feae	881	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	882	p = &fs->win[bc % SS(fs)];
dannyman939	0:c746ee34feae	883	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
dannyman939	0:c746ee34feae	884	bc++;
dannyman939	0:c746ee34feae	885	fs->wflag = 1;
dannyman939	0:c746ee34feae	886	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
dannyman939	0:c746ee34feae	887	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	888	p = &fs->win[bc % SS(fs)];
dannyman939	0:c746ee34feae	889	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
dannyman939	0:c746ee34feae	890	break;
dannyman939	0:c746ee34feae	891
dannyman939	0:c746ee34feae	892	case FS_FAT16 :
dannyman939	0:c746ee34feae	893	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
dannyman939	0:c746ee34feae	894	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	895	p = &fs->win[clst * 2 % SS(fs)];
dannyman939	0:c746ee34feae	896	ST_WORD(p, (WORD)val);
dannyman939	0:c746ee34feae	897	break;
dannyman939	0:c746ee34feae	898
dannyman939	0:c746ee34feae	899	case FS_FAT32 :
dannyman939	0:c746ee34feae	900	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
dannyman939	0:c746ee34feae	901	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	902	p = &fs->win[clst * 4 % SS(fs)];
dannyman939	0:c746ee34feae	903	val \|= LD_DWORD(p) & 0xF0000000;
dannyman939	0:c746ee34feae	904	ST_DWORD(p, val);
dannyman939	0:c746ee34feae	905	break;
dannyman939	0:c746ee34feae	906
dannyman939	0:c746ee34feae	907	default :
dannyman939	0:c746ee34feae	908	res = FR_INT_ERR;
dannyman939	0:c746ee34feae	909	}
dannyman939	0:c746ee34feae	910	fs->wflag = 1;
dannyman939	0:c746ee34feae	911	}
dannyman939	0:c746ee34feae	912
dannyman939	0:c746ee34feae	913	return res;
dannyman939	0:c746ee34feae	914	}
dannyman939	0:c746ee34feae	915	#endif /* !_FS_READONLY */
dannyman939	0:c746ee34feae	916
dannyman939	0:c746ee34feae	917
dannyman939	0:c746ee34feae	918
dannyman939	0:c746ee34feae	919
dannyman939	0:c746ee34feae	920	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	921	/* FAT handling - Remove a cluster chain */
dannyman939	0:c746ee34feae	922	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	923	#if !_FS_READONLY
dannyman939	0:c746ee34feae	924	static
dannyman939	0:c746ee34feae	925	FRESULT remove_chain (
dannyman939	0:c746ee34feae	926	FATFS fs, / File system object */
dannyman939	0:c746ee34feae	927	DWORD clst /* Cluster# to remove a chain from */
dannyman939	0:c746ee34feae	928	)
dannyman939	0:c746ee34feae	929	{
dannyman939	0:c746ee34feae	930	FRESULT res;
dannyman939	0:c746ee34feae	931	DWORD nxt;
dannyman939	0:c746ee34feae	932	#if _USE_ERASE
dannyman939	0:c746ee34feae	933	DWORD scl = clst, ecl = clst, resion[2];
dannyman939	0:c746ee34feae	934	#endif
dannyman939	0:c746ee34feae	935
dannyman939	0:c746ee34feae	936	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
dannyman939	0:c746ee34feae	937	res = FR_INT_ERR;
dannyman939	0:c746ee34feae	938
dannyman939	0:c746ee34feae	939	} else {
dannyman939	0:c746ee34feae	940	res = FR_OK;
dannyman939	0:c746ee34feae	941	while (clst < fs->n_fatent) { /* Not a last link? */
dannyman939	0:c746ee34feae	942	nxt = get_fat(fs, clst); /* Get cluster status */
dannyman939	0:c746ee34feae	943	if (nxt == 0) break; /* Empty cluster? */
dannyman939	0:c746ee34feae	944	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
dannyman939	0:c746ee34feae	945	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
dannyman939	0:c746ee34feae	946	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
dannyman939	0:c746ee34feae	947	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	948	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */
dannyman939	0:c746ee34feae	949	fs->free_clust++;
dannyman939	0:c746ee34feae	950	fs->fsi_flag = 1;
dannyman939	0:c746ee34feae	951	}
dannyman939	0:c746ee34feae	952	#if _USE_ERASE
dannyman939	0:c746ee34feae	953	if (ecl + 1 == nxt) { /* Next cluster is contiguous */
dannyman939	0:c746ee34feae	954	ecl = nxt;
dannyman939	0:c746ee34feae	955	} else { /* End of contiguous clusters */
dannyman939	0:c746ee34feae	956	resion[0] = clust2sect(fs, scl); /* Start sector */
dannyman939	0:c746ee34feae	957	resion[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
dannyman939	0:c746ee34feae	958	disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, resion); /* Erase the block */
dannyman939	0:c746ee34feae	959	scl = ecl = nxt;
dannyman939	0:c746ee34feae	960	}
dannyman939	0:c746ee34feae	961	#endif
dannyman939	0:c746ee34feae	962	clst = nxt; /* Next cluster */
dannyman939	0:c746ee34feae	963	}
dannyman939	0:c746ee34feae	964	}
dannyman939	0:c746ee34feae	965
dannyman939	0:c746ee34feae	966	return res;
dannyman939	0:c746ee34feae	967	}
dannyman939	0:c746ee34feae	968	#endif
dannyman939	0:c746ee34feae	969
dannyman939	0:c746ee34feae	970
dannyman939	0:c746ee34feae	971
dannyman939	0:c746ee34feae	972
dannyman939	0:c746ee34feae	973	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	974	/* FAT handling - Stretch or Create a cluster chain */
dannyman939	0:c746ee34feae	975	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	976	#if !_FS_READONLY
dannyman939	0:c746ee34feae	977	static
dannyman939	0:c746ee34feae	978	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
dannyman939	0:c746ee34feae	979	FATFS fs, / File system object */
dannyman939	0:c746ee34feae	980	DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
dannyman939	0:c746ee34feae	981	)
dannyman939	0:c746ee34feae	982	{
dannyman939	0:c746ee34feae	983	DWORD cs, ncl, scl;
dannyman939	0:c746ee34feae	984	FRESULT res;
dannyman939	0:c746ee34feae	985
dannyman939	0:c746ee34feae	986
dannyman939	0:c746ee34feae	987	if (clst == 0) { /* Create a new chain */
dannyman939	0:c746ee34feae	988	scl = fs->last_clust; /* Get suggested start point */
dannyman939	0:c746ee34feae	989	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
dannyman939	0:c746ee34feae	990	}
dannyman939	0:c746ee34feae	991	else { /* Stretch the current chain */
dannyman939	0:c746ee34feae	992	cs = get_fat(fs, clst); /* Check the cluster status */
dannyman939	0:c746ee34feae	993	if (cs < 2) return 1; /* It is an invalid cluster */
dannyman939	0:c746ee34feae	994	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
dannyman939	0:c746ee34feae	995	scl = clst;
dannyman939	0:c746ee34feae	996	}
dannyman939	0:c746ee34feae	997
dannyman939	0:c746ee34feae	998	ncl = scl; /* Start cluster */
dannyman939	0:c746ee34feae	999	for (;;) {
dannyman939	0:c746ee34feae	1000	ncl++; /* Next cluster */
dannyman939	0:c746ee34feae	1001	if (ncl >= fs->n_fatent) { /* Wrap around */
dannyman939	0:c746ee34feae	1002	ncl = 2;
dannyman939	0:c746ee34feae	1003	if (ncl > scl) return 0; /* No free cluster */
dannyman939	0:c746ee34feae	1004	}
dannyman939	0:c746ee34feae	1005	cs = get_fat(fs, ncl); /* Get the cluster status */
dannyman939	0:c746ee34feae	1006	if (cs == 0) break; /* Found a free cluster */
dannyman939	0:c746ee34feae	1007	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
dannyman939	0:c746ee34feae	1008	return cs;
dannyman939	0:c746ee34feae	1009	if (ncl == scl) return 0; /* No free cluster */
dannyman939	0:c746ee34feae	1010	}
dannyman939	0:c746ee34feae	1011
dannyman939	0:c746ee34feae	1012	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
dannyman939	0:c746ee34feae	1013	if (res == FR_OK && clst != 0) {
dannyman939	0:c746ee34feae	1014	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
dannyman939	0:c746ee34feae	1015	}
dannyman939	0:c746ee34feae	1016	if (res == FR_OK) {
dannyman939	0:c746ee34feae	1017	fs->last_clust = ncl; /* Update FSINFO */
dannyman939	0:c746ee34feae	1018	if (fs->free_clust != 0xFFFFFFFF) {
dannyman939	0:c746ee34feae	1019	fs->free_clust--;
dannyman939	0:c746ee34feae	1020	fs->fsi_flag = 1;
dannyman939	0:c746ee34feae	1021	}
dannyman939	0:c746ee34feae	1022	} else {
dannyman939	0:c746ee34feae	1023	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
dannyman939	0:c746ee34feae	1024	}
dannyman939	0:c746ee34feae	1025
dannyman939	0:c746ee34feae	1026	return ncl; /* Return new cluster number or error code */
dannyman939	0:c746ee34feae	1027	}
dannyman939	0:c746ee34feae	1028	#endif /* !_FS_READONLY */
dannyman939	0:c746ee34feae	1029
dannyman939	0:c746ee34feae	1030
dannyman939	0:c746ee34feae	1031
dannyman939	0:c746ee34feae	1032	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1033	/* FAT handling - Convert offset into cluster with link map table */
dannyman939	0:c746ee34feae	1034	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1035
dannyman939	0:c746ee34feae	1036	#if _USE_FASTSEEK
dannyman939	0:c746ee34feae	1037	static
dannyman939	0:c746ee34feae	1038	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
dannyman939	0:c746ee34feae	1039	FIL* fp, /* Pointer to the file object */
dannyman939	0:c746ee34feae	1040	DWORD ofs /* File offset to be converted to cluster# */
dannyman939	0:c746ee34feae	1041	)
dannyman939	0:c746ee34feae	1042	{
dannyman939	0:c746ee34feae	1043	DWORD cl, ncl, *tbl;
dannyman939	0:c746ee34feae	1044
dannyman939	0:c746ee34feae	1045
dannyman939	0:c746ee34feae	1046	tbl = fp->cltbl + 1; /* Top of CLMT */
dannyman939	0:c746ee34feae	1047	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
dannyman939	0:c746ee34feae	1048	for (;;) {
dannyman939	0:c746ee34feae	1049	ncl = tbl++; / Number of cluters in the fragment */
dannyman939	0:c746ee34feae	1050	if (!ncl) return 0; /* End of table? (error) */
dannyman939	0:c746ee34feae	1051	if (cl < ncl) break; /* In this fragment? */
dannyman939	0:c746ee34feae	1052	cl -= ncl; tbl++; /* Next fragment */
dannyman939	0:c746ee34feae	1053	}
dannyman939	0:c746ee34feae	1054	return cl + tbl; / Return the cluster number */
dannyman939	0:c746ee34feae	1055	}
dannyman939	0:c746ee34feae	1056	#endif /* _USE_FASTSEEK */
dannyman939	0:c746ee34feae	1057
dannyman939	0:c746ee34feae	1058
dannyman939	0:c746ee34feae	1059
dannyman939	0:c746ee34feae	1060	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1061	/* Directory handling - Set directory index */
dannyman939	0:c746ee34feae	1062	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1063
dannyman939	0:c746ee34feae	1064	static
dannyman939	0:c746ee34feae	1065	FRESULT dir_sdi (
dannyman939	0:c746ee34feae	1066	FATFS_DIR dj, / Pointer to directory object */
dannyman939	0:c746ee34feae	1067	WORD idx /* Directory index number */
dannyman939	0:c746ee34feae	1068	)
dannyman939	0:c746ee34feae	1069	{
dannyman939	0:c746ee34feae	1070	DWORD clst;
dannyman939	0:c746ee34feae	1071	WORD ic;
dannyman939	0:c746ee34feae	1072
dannyman939	0:c746ee34feae	1073
dannyman939	0:c746ee34feae	1074	dj->index = idx;
dannyman939	0:c746ee34feae	1075	clst = dj->sclust;
dannyman939	0:c746ee34feae	1076	if (clst == 1 \|\| clst >= dj->fs->n_fatent) /* Check start cluster range */
dannyman939	0:c746ee34feae	1077	return FR_INT_ERR;
dannyman939	0:c746ee34feae	1078	if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
dannyman939	0:c746ee34feae	1079	clst = dj->fs->dirbase;
dannyman939	0:c746ee34feae	1080
dannyman939	0:c746ee34feae	1081	if (clst == 0) { /* Static table (root-dir in FAT12/16) */
dannyman939	0:c746ee34feae	1082	dj->clust = clst;
dannyman939	0:c746ee34feae	1083	if (idx >= dj->fs->n_rootdir) /* Index is out of range */
dannyman939	0:c746ee34feae	1084	return FR_INT_ERR;
dannyman939	0:c746ee34feae	1085	dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
dannyman939	0:c746ee34feae	1086	}
dannyman939	0:c746ee34feae	1087	else { /* Dynamic table (sub-dirs or root-dir in FAT32) */
dannyman939	0:c746ee34feae	1088	ic = SS(dj->fs) / SZ_DIR * dj->fs->csize; /* Entries per cluster */
dannyman939	0:c746ee34feae	1089	while (idx >= ic) { /* Follow cluster chain */
dannyman939	0:c746ee34feae	1090	clst = get_fat(dj->fs, clst); /* Get next cluster */
dannyman939	0:c746ee34feae	1091	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
dannyman939	0:c746ee34feae	1092	if (clst < 2 \|\| clst >= dj->fs->n_fatent) /* Reached to end of table or int error */
dannyman939	0:c746ee34feae	1093	return FR_INT_ERR;
dannyman939	0:c746ee34feae	1094	idx -= ic;
dannyman939	0:c746ee34feae	1095	}
dannyman939	0:c746ee34feae	1096	dj->clust = clst;
dannyman939	0:c746ee34feae	1097	dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / SZ_DIR); /* Sector# */
dannyman939	0:c746ee34feae	1098	}
dannyman939	0:c746ee34feae	1099
dannyman939	0:c746ee34feae	1100	dj->dir = dj->fs->win + (idx % (SS(dj->fs) / SZ_DIR)) * SZ_DIR; /* Ptr to the entry in the sector */
dannyman939	0:c746ee34feae	1101
dannyman939	0:c746ee34feae	1102	return FR_OK; /* Seek succeeded */
dannyman939	0:c746ee34feae	1103	}
dannyman939	0:c746ee34feae	1104
dannyman939	0:c746ee34feae	1105
dannyman939	0:c746ee34feae	1106
dannyman939	0:c746ee34feae	1107
dannyman939	0:c746ee34feae	1108	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1109	/* Directory handling - Move directory index next */
dannyman939	0:c746ee34feae	1110	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1111
dannyman939	0:c746ee34feae	1112	static
dannyman939	0:c746ee34feae	1113	FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not stretch */
dannyman939	0:c746ee34feae	1114	FATFS_DIR dj, / Pointer to directory object */
dannyman939	0:c746ee34feae	1115	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
dannyman939	0:c746ee34feae	1116	)
dannyman939	0:c746ee34feae	1117	{
dannyman939	0:c746ee34feae	1118	DWORD clst;
dannyman939	0:c746ee34feae	1119	WORD i;
dannyman939	0:c746ee34feae	1120
dannyman939	0:c746ee34feae	1121
dannyman939	0:c746ee34feae	1122	stretch = stretch; /* To suppress warning on read-only cfg. */
dannyman939	0:c746ee34feae	1123	i = dj->index + 1;
dannyman939	0:c746ee34feae	1124	if (!i \|\| !dj->sect) /* Report EOT when index has reached 65535 */
dannyman939	0:c746ee34feae	1125	return FR_NO_FILE;
dannyman939	0:c746ee34feae	1126
dannyman939	0:c746ee34feae	1127	if (!(i % (SS(dj->fs) / SZ_DIR))) { /* Sector changed? */
dannyman939	0:c746ee34feae	1128	dj->sect++; /* Next sector */
dannyman939	0:c746ee34feae	1129
dannyman939	0:c746ee34feae	1130	if (dj->clust == 0) { /* Static table */
dannyman939	0:c746ee34feae	1131	if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */
dannyman939	0:c746ee34feae	1132	return FR_NO_FILE;
dannyman939	0:c746ee34feae	1133	}
dannyman939	0:c746ee34feae	1134	else { /* Dynamic table */
dannyman939	0:c746ee34feae	1135	if (((i / (SS(dj->fs) / SZ_DIR)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
dannyman939	0:c746ee34feae	1136	clst = get_fat(dj->fs, dj->clust); /* Get next cluster */
dannyman939	0:c746ee34feae	1137	if (clst <= 1) return FR_INT_ERR;
dannyman939	0:c746ee34feae	1138	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
dannyman939	0:c746ee34feae	1139	if (clst >= dj->fs->n_fatent) { /* When it reached end of dynamic table */
dannyman939	0:c746ee34feae	1140	#if !_FS_READONLY
dannyman939	0:c746ee34feae	1141	BYTE c;
dannyman939	0:c746ee34feae	1142	if (!stretch) return FR_NO_FILE; /* When do not stretch, report EOT */
dannyman939	0:c746ee34feae	1143	clst = create_chain(dj->fs, dj->clust); /* Stretch cluster chain */
dannyman939	0:c746ee34feae	1144	if (clst == 0) return FR_DENIED; /* No free cluster */
dannyman939	0:c746ee34feae	1145	if (clst == 1) return FR_INT_ERR;
dannyman939	0:c746ee34feae	1146	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
dannyman939	0:c746ee34feae	1147	/* Clean-up stretched table */
dannyman939	0:c746ee34feae	1148	if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */
dannyman939	0:c746ee34feae	1149	mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */
dannyman939	0:c746ee34feae	1150	dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */
dannyman939	0:c746ee34feae	1151	for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */
dannyman939	0:c746ee34feae	1152	dj->fs->wflag = 1;
dannyman939	0:c746ee34feae	1153	if (move_window(dj->fs, 0)) return FR_DISK_ERR;
dannyman939	0:c746ee34feae	1154	dj->fs->winsect++;
dannyman939	0:c746ee34feae	1155	}
dannyman939	0:c746ee34feae	1156	dj->fs->winsect -= c; /* Rewind window address */
dannyman939	0:c746ee34feae	1157	#else
dannyman939	0:c746ee34feae	1158	return FR_NO_FILE; /* Report EOT */
dannyman939	0:c746ee34feae	1159	#endif
dannyman939	0:c746ee34feae	1160	}
dannyman939	0:c746ee34feae	1161	dj->clust = clst; /* Initialize data for new cluster */
dannyman939	0:c746ee34feae	1162	dj->sect = clust2sect(dj->fs, clst);
dannyman939	0:c746ee34feae	1163	}
dannyman939	0:c746ee34feae	1164	}
dannyman939	0:c746ee34feae	1165	}
dannyman939	0:c746ee34feae	1166
dannyman939	0:c746ee34feae	1167	dj->index = i;
dannyman939	0:c746ee34feae	1168	dj->dir = dj->fs->win + (i % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;
dannyman939	0:c746ee34feae	1169
dannyman939	0:c746ee34feae	1170	return FR_OK;
dannyman939	0:c746ee34feae	1171	}
dannyman939	0:c746ee34feae	1172
dannyman939	0:c746ee34feae	1173
dannyman939	0:c746ee34feae	1174
dannyman939	0:c746ee34feae	1175
dannyman939	0:c746ee34feae	1176	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1177	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
dannyman939	0:c746ee34feae	1178	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1179	#if _USE_LFN
dannyman939	0:c746ee34feae	1180	static
dannyman939	0:c746ee34feae	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 */
dannyman939	0:c746ee34feae	1182
dannyman939	0:c746ee34feae	1183
dannyman939	0:c746ee34feae	1184	static
dannyman939	0:c746ee34feae	1185	int cmp_lfn ( /* 1:Matched, 0:Not matched */
dannyman939	0:c746ee34feae	1186	WCHAR lfnbuf, / Pointer to the LFN to be compared */
dannyman939	0:c746ee34feae	1187	BYTE dir / Pointer to the directory entry containing a part of LFN */
dannyman939	0:c746ee34feae	1188	)
dannyman939	0:c746ee34feae	1189	{
dannyman939	0:c746ee34feae	1190	UINT i, s;
dannyman939	0:c746ee34feae	1191	WCHAR wc, uc;
dannyman939	0:c746ee34feae	1192
dannyman939	0:c746ee34feae	1193
dannyman939	0:c746ee34feae	1194	i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
dannyman939	0:c746ee34feae	1195	s = 0; wc = 1;
dannyman939	0:c746ee34feae	1196	do {
dannyman939	0:c746ee34feae	1197	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
dannyman939	0:c746ee34feae	1198	if (wc) { /* Last char has not been processed */
dannyman939	0:c746ee34feae	1199	wc = ff_wtoupper(uc); /* Convert it to upper case */
dannyman939	0:c746ee34feae	1200	if (i >= _MAX_LFN \|\| wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
dannyman939	0:c746ee34feae	1201	return 0; /* Not matched */
dannyman939	0:c746ee34feae	1202	} else {
dannyman939	0:c746ee34feae	1203	if (uc != 0xFFFF) return 0; /* Check filler */
dannyman939	0:c746ee34feae	1204	}
dannyman939	0:c746ee34feae	1205	} while (++s < 13); /* Repeat until all chars in the entry are checked */
dannyman939	0:c746ee34feae	1206
dannyman939	0:c746ee34feae	1207	if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) /* Last segment matched but different length */
dannyman939	0:c746ee34feae	1208	return 0;
dannyman939	0:c746ee34feae	1209
dannyman939	0:c746ee34feae	1210	return 1; /* The part of LFN matched */
dannyman939	0:c746ee34feae	1211	}
dannyman939	0:c746ee34feae	1212
dannyman939	0:c746ee34feae	1213
dannyman939	0:c746ee34feae	1214
dannyman939	0:c746ee34feae	1215	static
dannyman939	0:c746ee34feae	1216	int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
dannyman939	0:c746ee34feae	1217	WCHAR lfnbuf, / Pointer to the Unicode-LFN buffer */
dannyman939	0:c746ee34feae	1218	BYTE dir / Pointer to the directory entry */
dannyman939	0:c746ee34feae	1219	)
dannyman939	0:c746ee34feae	1220	{
dannyman939	0:c746ee34feae	1221	UINT i, s;
dannyman939	0:c746ee34feae	1222	WCHAR wc, uc;
dannyman939	0:c746ee34feae	1223
dannyman939	0:c746ee34feae	1224
dannyman939	0:c746ee34feae	1225	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
dannyman939	0:c746ee34feae	1226
dannyman939	0:c746ee34feae	1227	s = 0; wc = 1;
dannyman939	0:c746ee34feae	1228	do {
dannyman939	0:c746ee34feae	1229	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
dannyman939	0:c746ee34feae	1230	if (wc) { /* Last char has not been processed */
dannyman939	0:c746ee34feae	1231	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
dannyman939	0:c746ee34feae	1232	lfnbuf[i++] = wc = uc; /* Store it */
dannyman939	0:c746ee34feae	1233	} else {
dannyman939	0:c746ee34feae	1234	if (uc != 0xFFFF) return 0; /* Check filler */
dannyman939	0:c746ee34feae	1235	}
dannyman939	0:c746ee34feae	1236	} while (++s < 13); /* Read all character in the entry */
dannyman939	0:c746ee34feae	1237
dannyman939	0:c746ee34feae	1238	if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
dannyman939	0:c746ee34feae	1239	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
dannyman939	0:c746ee34feae	1240	lfnbuf[i] = 0;
dannyman939	0:c746ee34feae	1241	}
dannyman939	0:c746ee34feae	1242
dannyman939	0:c746ee34feae	1243	return 1;
dannyman939	0:c746ee34feae	1244	}
dannyman939	0:c746ee34feae	1245
dannyman939	0:c746ee34feae	1246
dannyman939	0:c746ee34feae	1247	#if !_FS_READONLY
dannyman939	0:c746ee34feae	1248	static
dannyman939	0:c746ee34feae	1249	void fit_lfn (
dannyman939	0:c746ee34feae	1250	const WCHAR lfnbuf, / Pointer to the LFN buffer */
dannyman939	0:c746ee34feae	1251	BYTE dir, / Pointer to the directory entry */
dannyman939	0:c746ee34feae	1252	BYTE ord, /* LFN order (1-20) */
dannyman939	0:c746ee34feae	1253	BYTE sum /* SFN sum */
dannyman939	0:c746ee34feae	1254	)
dannyman939	0:c746ee34feae	1255	{
dannyman939	0:c746ee34feae	1256	UINT i, s;
dannyman939	0:c746ee34feae	1257	WCHAR wc;
dannyman939	0:c746ee34feae	1258
dannyman939	0:c746ee34feae	1259
dannyman939	0:c746ee34feae	1260	dir[LDIR_Chksum] = sum; /* Set check sum */
dannyman939	0:c746ee34feae	1261	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
dannyman939	0:c746ee34feae	1262	dir[LDIR_Type] = 0;
dannyman939	0:c746ee34feae	1263	ST_WORD(dir+LDIR_FstClusLO, 0);
dannyman939	0:c746ee34feae	1264
dannyman939	0:c746ee34feae	1265	i = (ord - 1) * 13; /* Get offset in the LFN buffer */
dannyman939	0:c746ee34feae	1266	s = wc = 0;
dannyman939	0:c746ee34feae	1267	do {
dannyman939	0:c746ee34feae	1268	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */
dannyman939	0:c746ee34feae	1269	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
dannyman939	0:c746ee34feae	1270	if (!wc) wc = 0xFFFF; /* Padding chars following last char */
dannyman939	0:c746ee34feae	1271	} while (++s < 13);
dannyman939	0:c746ee34feae	1272	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLE; /* Bottom LFN part is the start of LFN sequence */
dannyman939	0:c746ee34feae	1273	dir[LDIR_Ord] = ord; /* Set the LFN order */
dannyman939	0:c746ee34feae	1274	}
dannyman939	0:c746ee34feae	1275
dannyman939	0:c746ee34feae	1276	#endif
dannyman939	0:c746ee34feae	1277	#endif
dannyman939	0:c746ee34feae	1278
dannyman939	0:c746ee34feae	1279
dannyman939	0:c746ee34feae	1280
dannyman939	0:c746ee34feae	1281	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1282	/* Create numbered name */
dannyman939	0:c746ee34feae	1283	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1284	#if _USE_LFN
dannyman939	0:c746ee34feae	1285	void gen_numname (
dannyman939	0:c746ee34feae	1286	BYTE dst, / Pointer to generated SFN */
dannyman939	0:c746ee34feae	1287	const BYTE src, / Pointer to source SFN to be modified */
dannyman939	0:c746ee34feae	1288	const WCHAR lfn, / Pointer to LFN */
dannyman939	0:c746ee34feae	1289	WORD seq /* Sequence number */
dannyman939	0:c746ee34feae	1290	)
dannyman939	0:c746ee34feae	1291	{
dannyman939	0:c746ee34feae	1292	BYTE ns[8], c;
dannyman939	0:c746ee34feae	1293	UINT i, j;
dannyman939	0:c746ee34feae	1294
dannyman939	0:c746ee34feae	1295
dannyman939	0:c746ee34feae	1296	mem_cpy(dst, src, 11);
dannyman939	0:c746ee34feae	1297
dannyman939	0:c746ee34feae	1298	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
dannyman939	0:c746ee34feae	1299	do seq = (seq >> 1) + (seq << 15) + (WORD)lfn++; while (lfn);
dannyman939	0:c746ee34feae	1300	}
dannyman939	0:c746ee34feae	1301
dannyman939	0:c746ee34feae	1302	/* itoa (hexdecimal) */
dannyman939	0:c746ee34feae	1303	i = 7;
dannyman939	0:c746ee34feae	1304	do {
dannyman939	0:c746ee34feae	1305	c = (seq % 16) + '0';
dannyman939	0:c746ee34feae	1306	if (c > '9') c += 7;
dannyman939	0:c746ee34feae	1307	ns[i--] = c;
dannyman939	0:c746ee34feae	1308	seq /= 16;
dannyman939	0:c746ee34feae	1309	} while (seq);
dannyman939	0:c746ee34feae	1310	ns[i] = '~';
dannyman939	0:c746ee34feae	1311
dannyman939	0:c746ee34feae	1312	/* Append the number */
dannyman939	0:c746ee34feae	1313	for (j = 0; j < i && dst[j] != ' '; j++) {
dannyman939	0:c746ee34feae	1314	if (IsDBCS1(dst[j])) {
dannyman939	0:c746ee34feae	1315	if (j == i - 1) break;
dannyman939	0:c746ee34feae	1316	j++;
dannyman939	0:c746ee34feae	1317	}
dannyman939	0:c746ee34feae	1318	}
dannyman939	0:c746ee34feae	1319	do {
dannyman939	0:c746ee34feae	1320	dst[j++] = (i < 8) ? ns[i++] : ' ';
dannyman939	0:c746ee34feae	1321	} while (j < 8);
dannyman939	0:c746ee34feae	1322	}
dannyman939	0:c746ee34feae	1323	#endif
dannyman939	0:c746ee34feae	1324
dannyman939	0:c746ee34feae	1325
dannyman939	0:c746ee34feae	1326
dannyman939	0:c746ee34feae	1327
dannyman939	0:c746ee34feae	1328	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1329	/* Calculate sum of an SFN */
dannyman939	0:c746ee34feae	1330	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1331	#if _USE_LFN
dannyman939	0:c746ee34feae	1332	static
dannyman939	0:c746ee34feae	1333	BYTE sum_sfn (
dannyman939	0:c746ee34feae	1334	const BYTE dir / Ptr to directory entry */
dannyman939	0:c746ee34feae	1335	)
dannyman939	0:c746ee34feae	1336	{
dannyman939	0:c746ee34feae	1337	BYTE sum = 0;
dannyman939	0:c746ee34feae	1338	UINT n = 11;
dannyman939	0:c746ee34feae	1339
dannyman939	0:c746ee34feae	1340	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
dannyman939	0:c746ee34feae	1341	return sum;
dannyman939	0:c746ee34feae	1342	}
dannyman939	0:c746ee34feae	1343	#endif
dannyman939	0:c746ee34feae	1344
dannyman939	0:c746ee34feae	1345
dannyman939	0:c746ee34feae	1346
dannyman939	0:c746ee34feae	1347
dannyman939	0:c746ee34feae	1348	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1349	/* Directory handling - Find an object in the directory */
dannyman939	0:c746ee34feae	1350	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1351
dannyman939	0:c746ee34feae	1352	static
dannyman939	0:c746ee34feae	1353	FRESULT dir_find (
dannyman939	0:c746ee34feae	1354	FATFS_DIR dj / Pointer to the directory object linked to the file name */
dannyman939	0:c746ee34feae	1355	)
dannyman939	0:c746ee34feae	1356	{
dannyman939	0:c746ee34feae	1357	FRESULT res;
dannyman939	0:c746ee34feae	1358	BYTE c, *dir;
dannyman939	0:c746ee34feae	1359	#if _USE_LFN
dannyman939	0:c746ee34feae	1360	BYTE a, ord, sum;
dannyman939	0:c746ee34feae	1361	#endif
dannyman939	0:c746ee34feae	1362
dannyman939	0:c746ee34feae	1363	res = dir_sdi(dj, 0); /* Rewind directory object */
dannyman939	0:c746ee34feae	1364	if (res != FR_OK) return res;
dannyman939	0:c746ee34feae	1365
dannyman939	0:c746ee34feae	1366	#if _USE_LFN
dannyman939	0:c746ee34feae	1367	ord = sum = 0xFF;
dannyman939	0:c746ee34feae	1368	#endif
dannyman939	0:c746ee34feae	1369	do {
dannyman939	0:c746ee34feae	1370	res = move_window(dj->fs, dj->sect);
dannyman939	0:c746ee34feae	1371	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	1372	dir = dj->dir; /* Ptr to the directory entry of current index */
dannyman939	0:c746ee34feae	1373	c = dir[DIR_Name];
dannyman939	0:c746ee34feae	1374	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
dannyman939	0:c746ee34feae	1375	#if _USE_LFN /* LFN configuration */
dannyman939	0:c746ee34feae	1376	a = dir[DIR_Attr] & AM_MASK;
dannyman939	0:c746ee34feae	1377	if (c == DDE \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
dannyman939	0:c746ee34feae	1378	ord = 0xFF;
dannyman939	0:c746ee34feae	1379	} else {
dannyman939	0:c746ee34feae	1380	if (a == AM_LFN) { /* An LFN entry is found */
dannyman939	0:c746ee34feae	1381	if (dj->lfn) {
dannyman939	0:c746ee34feae	1382	if (c & LLE) { /* Is it start of LFN sequence? */
dannyman939	0:c746ee34feae	1383	sum = dir[LDIR_Chksum];
dannyman939	0:c746ee34feae	1384	c &= ~LLE; ord = c; /* LFN start order */
dannyman939	0:c746ee34feae	1385	dj->lfn_idx = dj->index;
dannyman939	0:c746ee34feae	1386	}
dannyman939	0:c746ee34feae	1387	/* Check validity of the LFN entry and compare it with given name */
dannyman939	0:c746ee34feae	1388	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
dannyman939	0:c746ee34feae	1389	}
dannyman939	0:c746ee34feae	1390	} else { /* An SFN entry is found */
dannyman939	0:c746ee34feae	1391	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
dannyman939	0:c746ee34feae	1392	ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */
dannyman939	0:c746ee34feae	1393	if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */
dannyman939	0:c746ee34feae	1394	}
dannyman939	0:c746ee34feae	1395	}
dannyman939	0:c746ee34feae	1396	#else /* Non LFN configuration */
dannyman939	0:c746ee34feae	1397	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
dannyman939	0:c746ee34feae	1398	break;
dannyman939	0:c746ee34feae	1399	#endif
dannyman939	0:c746ee34feae	1400	res = dir_next(dj, 0); /* Next entry */
dannyman939	0:c746ee34feae	1401	} while (res == FR_OK);
dannyman939	0:c746ee34feae	1402
dannyman939	0:c746ee34feae	1403	return res;
dannyman939	0:c746ee34feae	1404	}
dannyman939	0:c746ee34feae	1405
dannyman939	0:c746ee34feae	1406
dannyman939	0:c746ee34feae	1407
dannyman939	0:c746ee34feae	1408
dannyman939	0:c746ee34feae	1409	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1410	/* Read an object from the directory */
dannyman939	0:c746ee34feae	1411	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1412	#if _FS_MINIMIZE <= 1
dannyman939	0:c746ee34feae	1413	static
dannyman939	0:c746ee34feae	1414	FRESULT dir_read (
dannyman939	0:c746ee34feae	1415	FATFS_DIR dj / Pointer to the directory object that pointing the entry to be read */
dannyman939	0:c746ee34feae	1416	)
dannyman939	0:c746ee34feae	1417	{
dannyman939	0:c746ee34feae	1418	FRESULT res;
dannyman939	0:c746ee34feae	1419	BYTE c, *dir;
dannyman939	0:c746ee34feae	1420	#if _USE_LFN
dannyman939	0:c746ee34feae	1421	BYTE a, ord = 0xFF, sum = 0xFF;
dannyman939	0:c746ee34feae	1422	#endif
dannyman939	0:c746ee34feae	1423
dannyman939	0:c746ee34feae	1424	res = FR_NO_FILE;
dannyman939	0:c746ee34feae	1425	while (dj->sect) {
dannyman939	0:c746ee34feae	1426	res = move_window(dj->fs, dj->sect);
dannyman939	0:c746ee34feae	1427	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	1428	dir = dj->dir; /* Ptr to the directory entry of current index */
dannyman939	0:c746ee34feae	1429	c = dir[DIR_Name];
dannyman939	0:c746ee34feae	1430	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
dannyman939	0:c746ee34feae	1431	#if _USE_LFN /* LFN configuration */
dannyman939	0:c746ee34feae	1432	a = dir[DIR_Attr] & AM_MASK;
dannyman939	0:c746ee34feae	1433	if (c == DDE \|\| (!_FS_RPATH && c == '.') \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
dannyman939	0:c746ee34feae	1434	ord = 0xFF;
dannyman939	0:c746ee34feae	1435	} else {
dannyman939	0:c746ee34feae	1436	if (a == AM_LFN) { /* An LFN entry is found */
dannyman939	0:c746ee34feae	1437	if (c & LLE) { /* Is it start of LFN sequence? */
dannyman939	0:c746ee34feae	1438	sum = dir[LDIR_Chksum];
dannyman939	0:c746ee34feae	1439	c &= ~LLE; ord = c;
dannyman939	0:c746ee34feae	1440	dj->lfn_idx = dj->index;
dannyman939	0:c746ee34feae	1441	}
dannyman939	0:c746ee34feae	1442	/* Check LFN validity and capture it */
dannyman939	0:c746ee34feae	1443	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
dannyman939	0:c746ee34feae	1444	} else { /* An SFN entry is found */
dannyman939	0:c746ee34feae	1445	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
dannyman939	0:c746ee34feae	1446	dj->lfn_idx = 0xFFFF; /* It has no LFN. */
dannyman939	0:c746ee34feae	1447	break;
dannyman939	0:c746ee34feae	1448	}
dannyman939	0:c746ee34feae	1449	}
dannyman939	0:c746ee34feae	1450	#else /* Non LFN configuration */
dannyman939	0:c746ee34feae	1451	if (c != DDE && (_FS_RPATH \|\| c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
dannyman939	0:c746ee34feae	1452	break;
dannyman939	0:c746ee34feae	1453	#endif
dannyman939	0:c746ee34feae	1454	res = dir_next(dj, 0); /* Next entry */
dannyman939	0:c746ee34feae	1455	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	1456	}
dannyman939	0:c746ee34feae	1457
dannyman939	0:c746ee34feae	1458	if (res != FR_OK) dj->sect = 0;
dannyman939	0:c746ee34feae	1459
dannyman939	0:c746ee34feae	1460	return res;
dannyman939	0:c746ee34feae	1461	}
dannyman939	0:c746ee34feae	1462	#endif
dannyman939	0:c746ee34feae	1463
dannyman939	0:c746ee34feae	1464
dannyman939	0:c746ee34feae	1465
dannyman939	0:c746ee34feae	1466	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1467	/* Register an object to the directory */
dannyman939	0:c746ee34feae	1468	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1469	#if !_FS_READONLY
dannyman939	0:c746ee34feae	1470	static
dannyman939	0:c746ee34feae	1471	FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
dannyman939	0:c746ee34feae	1472	FATFS_DIR dj / Target directory with object name to be created */
dannyman939	0:c746ee34feae	1473	)
dannyman939	0:c746ee34feae	1474	{
dannyman939	0:c746ee34feae	1475	FRESULT res;
dannyman939	0:c746ee34feae	1476	BYTE c, *dir;
dannyman939	0:c746ee34feae	1477	#if _USE_LFN /* LFN configuration */
dannyman939	0:c746ee34feae	1478	WORD n, ne, is;
dannyman939	0:c746ee34feae	1479	BYTE sn[12], *fn, sum;
dannyman939	0:c746ee34feae	1480	WCHAR *lfn;
dannyman939	0:c746ee34feae	1481
dannyman939	0:c746ee34feae	1482
dannyman939	0:c746ee34feae	1483	fn = dj->fn; lfn = dj->lfn;
dannyman939	0:c746ee34feae	1484	mem_cpy(sn, fn, 12);
dannyman939	0:c746ee34feae	1485
dannyman939	0:c746ee34feae	1486	if (_FS_RPATH && (sn[NS] & NS_DOT)) /* Cannot create dot entry */
dannyman939	0:c746ee34feae	1487	return FR_INVALID_NAME;
dannyman939	0:c746ee34feae	1488
dannyman939	0:c746ee34feae	1489	if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
dannyman939	0:c746ee34feae	1490	fn[NS] = 0; dj->lfn = 0; /* Find only SFN */
dannyman939	0:c746ee34feae	1491	for (n = 1; n < 100; n++) {
dannyman939	0:c746ee34feae	1492	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
dannyman939	0:c746ee34feae	1493	res = dir_find(dj); /* Check if the name collides with existing SFN */
dannyman939	0:c746ee34feae	1494	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	1495	}
dannyman939	0:c746ee34feae	1496	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
dannyman939	0:c746ee34feae	1497	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
dannyman939	0:c746ee34feae	1498	fn[NS] = sn[NS]; dj->lfn = lfn;
dannyman939	0:c746ee34feae	1499	}
dannyman939	0:c746ee34feae	1500
dannyman939	0:c746ee34feae	1501	if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve an SFN + LFN entries. */
dannyman939	0:c746ee34feae	1502	for (ne = 0; lfn[ne]; ne++) ;
dannyman939	0:c746ee34feae	1503	ne = (ne + 25) / 13;
dannyman939	0:c746ee34feae	1504	} else { /* Otherwise reserve only an SFN entry. */
dannyman939	0:c746ee34feae	1505	ne = 1;
dannyman939	0:c746ee34feae	1506	}
dannyman939	0:c746ee34feae	1507
dannyman939	0:c746ee34feae	1508	/* Reserve contiguous entries */
dannyman939	0:c746ee34feae	1509	res = dir_sdi(dj, 0);
dannyman939	0:c746ee34feae	1510	if (res != FR_OK) return res;
dannyman939	0:c746ee34feae	1511	n = is = 0;
dannyman939	0:c746ee34feae	1512	do {
dannyman939	0:c746ee34feae	1513	res = move_window(dj->fs, dj->sect);
dannyman939	0:c746ee34feae	1514	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	1515	c = dj->dir; / Check the entry status */
dannyman939	0:c746ee34feae	1516	if (c == DDE \|\| c == 0) { /* Is it a blank entry? */
dannyman939	0:c746ee34feae	1517	if (n == 0) is = dj->index; /* First index of the contiguous entry */
dannyman939	0:c746ee34feae	1518	if (++n == ne) break; /* A contiguous entry that required count is found */
dannyman939	0:c746ee34feae	1519	} else {
dannyman939	0:c746ee34feae	1520	n = 0; /* Not a blank entry. Restart to search */
dannyman939	0:c746ee34feae	1521	}
dannyman939	0:c746ee34feae	1522	res = dir_next(dj, 1); /* Next entry with table stretch */
dannyman939	0:c746ee34feae	1523	} while (res == FR_OK);
dannyman939	0:c746ee34feae	1524
dannyman939	0:c746ee34feae	1525	if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */
dannyman939	0:c746ee34feae	1526	res = dir_sdi(dj, is);
dannyman939	0:c746ee34feae	1527	if (res == FR_OK) {
dannyman939	0:c746ee34feae	1528	sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */
dannyman939	0:c746ee34feae	1529	ne--;
dannyman939	0:c746ee34feae	1530	do { /* Store LFN entries in bottom first */
dannyman939	0:c746ee34feae	1531	res = move_window(dj->fs, dj->sect);
dannyman939	0:c746ee34feae	1532	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	1533	fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
dannyman939	0:c746ee34feae	1534	dj->fs->wflag = 1;
dannyman939	0:c746ee34feae	1535	res = dir_next(dj, 0); /* Next entry */
dannyman939	0:c746ee34feae	1536	} while (res == FR_OK && --ne);
dannyman939	0:c746ee34feae	1537	}
dannyman939	0:c746ee34feae	1538	}
dannyman939	0:c746ee34feae	1539
dannyman939	0:c746ee34feae	1540	#else /* Non LFN configuration */
dannyman939	0:c746ee34feae	1541	res = dir_sdi(dj, 0);
dannyman939	0:c746ee34feae	1542	if (res == FR_OK) {
dannyman939	0:c746ee34feae	1543	do { /* Find a blank entry for the SFN */
dannyman939	0:c746ee34feae	1544	res = move_window(dj->fs, dj->sect);
dannyman939	0:c746ee34feae	1545	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	1546	c = *dj->dir;
dannyman939	0:c746ee34feae	1547	if (c == DDE \|\| c == 0) break; /* Is it a blank entry? */
dannyman939	0:c746ee34feae	1548	res = dir_next(dj, 1); /* Next entry with table stretch */
dannyman939	0:c746ee34feae	1549	} while (res == FR_OK);
dannyman939	0:c746ee34feae	1550	}
dannyman939	0:c746ee34feae	1551	#endif
dannyman939	0:c746ee34feae	1552
dannyman939	0:c746ee34feae	1553	if (res == FR_OK) { /* Initialize the SFN entry */
dannyman939	0:c746ee34feae	1554	res = move_window(dj->fs, dj->sect);
dannyman939	0:c746ee34feae	1555	if (res == FR_OK) {
dannyman939	0:c746ee34feae	1556	dir = dj->dir;
dannyman939	0:c746ee34feae	1557	mem_set(dir, 0, SZ_DIR); /* Clean the entry */
dannyman939	0:c746ee34feae	1558	mem_cpy(dir, dj->fn, 11); /* Put SFN */
dannyman939	0:c746ee34feae	1559	#if _USE_LFN
dannyman939	0:c746ee34feae	1560	dir[DIR_NTres] = (dj->fn+NS) & (NS_BODY \| NS_EXT); / Put NT flag */
dannyman939	0:c746ee34feae	1561	#endif
dannyman939	0:c746ee34feae	1562	dj->fs->wflag = 1;
dannyman939	0:c746ee34feae	1563	}
dannyman939	0:c746ee34feae	1564	}
dannyman939	0:c746ee34feae	1565
dannyman939	0:c746ee34feae	1566	return res;
dannyman939	0:c746ee34feae	1567	}
dannyman939	0:c746ee34feae	1568	#endif /* !_FS_READONLY */
dannyman939	0:c746ee34feae	1569
dannyman939	0:c746ee34feae	1570
dannyman939	0:c746ee34feae	1571
dannyman939	0:c746ee34feae	1572
dannyman939	0:c746ee34feae	1573	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1574	/* Remove an object from the directory */
dannyman939	0:c746ee34feae	1575	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1576	#if !_FS_READONLY && !_FS_MINIMIZE
dannyman939	0:c746ee34feae	1577	static
dannyman939	0:c746ee34feae	1578	FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
dannyman939	0:c746ee34feae	1579	FATFS_DIR dj / Directory object pointing the entry to be removed */
dannyman939	0:c746ee34feae	1580	)
dannyman939	0:c746ee34feae	1581	{
dannyman939	0:c746ee34feae	1582	FRESULT res;
dannyman939	0:c746ee34feae	1583	#if _USE_LFN /* LFN configuration */
dannyman939	0:c746ee34feae	1584	WORD i;
dannyman939	0:c746ee34feae	1585
dannyman939	0:c746ee34feae	1586	i = dj->index; /* SFN index */
dannyman939	0:c746ee34feae	1587	res = dir_sdi(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */
dannyman939	0:c746ee34feae	1588	if (res == FR_OK) {
dannyman939	0:c746ee34feae	1589	do {
dannyman939	0:c746ee34feae	1590	res = move_window(dj->fs, dj->sect);
dannyman939	0:c746ee34feae	1591	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	1592	dj->dir = DDE; / Mark the entry "deleted" */
dannyman939	0:c746ee34feae	1593	dj->fs->wflag = 1;
dannyman939	0:c746ee34feae	1594	if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
dannyman939	0:c746ee34feae	1595	res = dir_next(dj, 0); /* Next entry */
dannyman939	0:c746ee34feae	1596	} while (res == FR_OK);
dannyman939	0:c746ee34feae	1597	if (res == FR_NO_FILE) res = FR_INT_ERR;
dannyman939	0:c746ee34feae	1598	}
dannyman939	0:c746ee34feae	1599
dannyman939	0:c746ee34feae	1600	#else /* Non LFN configuration */
dannyman939	0:c746ee34feae	1601	res = dir_sdi(dj, dj->index);
dannyman939	0:c746ee34feae	1602	if (res == FR_OK) {
dannyman939	0:c746ee34feae	1603	res = move_window(dj->fs, dj->sect);
dannyman939	0:c746ee34feae	1604	if (res == FR_OK) {
dannyman939	0:c746ee34feae	1605	dj->dir = DDE; / Mark the entry "deleted" */
dannyman939	0:c746ee34feae	1606	dj->fs->wflag = 1;
dannyman939	0:c746ee34feae	1607	}
dannyman939	0:c746ee34feae	1608	}
dannyman939	0:c746ee34feae	1609	#endif
dannyman939	0:c746ee34feae	1610
dannyman939	0:c746ee34feae	1611	return res;
dannyman939	0:c746ee34feae	1612	}
dannyman939	0:c746ee34feae	1613	#endif /* !_FS_READONLY */
dannyman939	0:c746ee34feae	1614
dannyman939	0:c746ee34feae	1615
dannyman939	0:c746ee34feae	1616
dannyman939	0:c746ee34feae	1617
dannyman939	0:c746ee34feae	1618	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1619	/* Pick a segment and create the object name in directory form */
dannyman939	0:c746ee34feae	1620	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1621
dannyman939	0:c746ee34feae	1622	static
dannyman939	0:c746ee34feae	1623	FRESULT create_name (
dannyman939	0:c746ee34feae	1624	FATFS_DIR dj, / Pointer to the directory object */
dannyman939	0:c746ee34feae	1625	const TCHAR *path / Pointer to pointer to the segment in the path string */
dannyman939	0:c746ee34feae	1626	)
dannyman939	0:c746ee34feae	1627	{
dannyman939	0:c746ee34feae	1628	#ifdef _EXCVT
dannyman939	0:c746ee34feae	1629	static const BYTE excvt[] = _EXCVT; /* Upper conversion table for extended chars */
dannyman939	0:c746ee34feae	1630	#endif
dannyman939	0:c746ee34feae	1631
dannyman939	0:c746ee34feae	1632	#if _USE_LFN /* LFN configuration */
dannyman939	0:c746ee34feae	1633	BYTE b, cf;
dannyman939	0:c746ee34feae	1634	WCHAR w, *lfn;
dannyman939	0:c746ee34feae	1635	UINT i, ni, si, di;
dannyman939	0:c746ee34feae	1636	const TCHAR *p;
dannyman939	0:c746ee34feae	1637
dannyman939	0:c746ee34feae	1638	/* Create LFN in Unicode */
dannyman939	0:c746ee34feae	1639	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
dannyman939	0:c746ee34feae	1640	lfn = dj->lfn;
dannyman939	0:c746ee34feae	1641	si = di = 0;
dannyman939	0:c746ee34feae	1642	for (;;) {
dannyman939	0:c746ee34feae	1643	w = p[si++]; /* Get a character */
dannyman939	0:c746ee34feae	1644	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
dannyman939	0:c746ee34feae	1645	if (di >= _MAX_LFN) /* Reject too long name */
dannyman939	0:c746ee34feae	1646	return FR_INVALID_NAME;
dannyman939	0:c746ee34feae	1647	#if !_LFN_UNICODE
dannyman939	0:c746ee34feae	1648	w &= 0xFF;
dannyman939	0:c746ee34feae	1649	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
dannyman939	0:c746ee34feae	1650	b = (BYTE)p[si++]; /* Get 2nd byte */
dannyman939	0:c746ee34feae	1651	if (!IsDBCS2(b))
dannyman939	0:c746ee34feae	1652	return FR_INVALID_NAME; /* Reject invalid sequence */
dannyman939	0:c746ee34feae	1653	w = (w << 8) + b; /* Create a DBC */
dannyman939	0:c746ee34feae	1654	}
dannyman939	0:c746ee34feae	1655	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
dannyman939	0:c746ee34feae	1656	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
dannyman939	0:c746ee34feae	1657	#endif
dannyman939	0:c746ee34feae	1658	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal chars for LFN */
dannyman939	0:c746ee34feae	1659	return FR_INVALID_NAME;
dannyman939	0:c746ee34feae	1660	lfn[di++] = w; /* Store the Unicode char */
dannyman939	0:c746ee34feae	1661	}
dannyman939	0:c746ee34feae	1662	path = &p[si]; / Return pointer to the next segment */
dannyman939	0:c746ee34feae	1663	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
dannyman939	0:c746ee34feae	1664	#if _FS_RPATH
dannyman939	0:c746ee34feae	1665	if ((di == 1 && lfn[di-1] == '.') \|\| /* Is this a dot entry? */
dannyman939	0:c746ee34feae	1666	(di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
dannyman939	0:c746ee34feae	1667	lfn[di] = 0;
dannyman939	0:c746ee34feae	1668	for (i = 0; i < 11; i++)
dannyman939	0:c746ee34feae	1669	dj->fn[i] = (i < di) ? '.' : ' ';
dannyman939	0:c746ee34feae	1670	dj->fn[i] = cf \| NS_DOT; /* This is a dot entry */
dannyman939	0:c746ee34feae	1671	return FR_OK;
dannyman939	0:c746ee34feae	1672	}
dannyman939	0:c746ee34feae	1673	#endif
dannyman939	0:c746ee34feae	1674	while (di) { /* Strip trailing spaces and dots */
dannyman939	0:c746ee34feae	1675	w = lfn[di-1];
dannyman939	0:c746ee34feae	1676	if (w != ' ' && w != '.') break;
dannyman939	0:c746ee34feae	1677	di--;
dannyman939	0:c746ee34feae	1678	}
dannyman939	0:c746ee34feae	1679	if (!di) return FR_INVALID_NAME; /* Reject nul string */
dannyman939	0:c746ee34feae	1680
dannyman939	0:c746ee34feae	1681	lfn[di] = 0; /* LFN is created */
dannyman939	0:c746ee34feae	1682
dannyman939	0:c746ee34feae	1683	/* Create SFN in directory form */
dannyman939	0:c746ee34feae	1684	mem_set(dj->fn, ' ', 11);
dannyman939	0:c746ee34feae	1685	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
dannyman939	0:c746ee34feae	1686	if (si) cf \|= NS_LOSS \| NS_LFN;
dannyman939	0:c746ee34feae	1687	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
dannyman939	0:c746ee34feae	1688
dannyman939	0:c746ee34feae	1689	b = i = 0; ni = 8;
dannyman939	0:c746ee34feae	1690	for (;;) {
dannyman939	0:c746ee34feae	1691	w = lfn[si++]; /* Get an LFN char */
dannyman939	0:c746ee34feae	1692	if (!w) break; /* Break on end of the LFN */
dannyman939	0:c746ee34feae	1693	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
dannyman939	0:c746ee34feae	1694	cf \|= NS_LOSS \| NS_LFN; continue;
dannyman939	0:c746ee34feae	1695	}
dannyman939	0:c746ee34feae	1696
dannyman939	0:c746ee34feae	1697	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
dannyman939	0:c746ee34feae	1698	if (ni == 11) { /* Long extension */
dannyman939	0:c746ee34feae	1699	cf \|= NS_LOSS \| NS_LFN; break;
dannyman939	0:c746ee34feae	1700	}
dannyman939	0:c746ee34feae	1701	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
dannyman939	0:c746ee34feae	1702	if (si > di) break; /* No extension */
dannyman939	0:c746ee34feae	1703	si = di; i = 8; ni = 11; /* Enter extension section */
dannyman939	0:c746ee34feae	1704	b <<= 2; continue;
dannyman939	0:c746ee34feae	1705	}
dannyman939	0:c746ee34feae	1706
dannyman939	0:c746ee34feae	1707	if (w >= 0x80) { /* Non ASCII char */
dannyman939	0:c746ee34feae	1708	#ifdef _EXCVT
dannyman939	0:c746ee34feae	1709	w = ff_convert(w, 0); /* Unicode -> OEM code */
dannyman939	0:c746ee34feae	1710	if (w) w = excvt[w - 0x80]; /* Convert extended char to upper (SBCS) */
dannyman939	0:c746ee34feae	1711	#else
dannyman939	0:c746ee34feae	1712	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
dannyman939	0:c746ee34feae	1713	#endif
dannyman939	0:c746ee34feae	1714	cf \|= NS_LFN; /* Force create LFN entry */
dannyman939	0:c746ee34feae	1715	}
dannyman939	0:c746ee34feae	1716
dannyman939	0:c746ee34feae	1717	if (_DF1S && w >= 0x100) { /* Double byte char (always false on SBCS cfg) */
dannyman939	0:c746ee34feae	1718	if (i >= ni - 1) {
dannyman939	0:c746ee34feae	1719	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
dannyman939	0:c746ee34feae	1720	}
dannyman939	0:c746ee34feae	1721	dj->fn[i++] = (BYTE)(w >> 8);
dannyman939	0:c746ee34feae	1722	} else { /* Single byte char */
dannyman939	0:c746ee34feae	1723	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal chars for SFN */
dannyman939	0:c746ee34feae	1724	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
dannyman939	0:c746ee34feae	1725	} else {
dannyman939	0:c746ee34feae	1726	if (IsUpper(w)) { /* ASCII large capital */
dannyman939	0:c746ee34feae	1727	b \|= 2;
dannyman939	0:c746ee34feae	1728	} else {
dannyman939	0:c746ee34feae	1729	if (IsLower(w)) { /* ASCII small capital */
dannyman939	0:c746ee34feae	1730	b \|= 1; w -= 0x20;
dannyman939	0:c746ee34feae	1731	}
dannyman939	0:c746ee34feae	1732	}
dannyman939	0:c746ee34feae	1733	}
dannyman939	0:c746ee34feae	1734	}
dannyman939	0:c746ee34feae	1735	dj->fn[i++] = (BYTE)w;
dannyman939	0:c746ee34feae	1736	}
dannyman939	0:c746ee34feae	1737
dannyman939	0:c746ee34feae	1738	if (dj->fn[0] == DDE) dj->fn[0] = NDDE; /* If the first char collides with deleted mark, replace it with 0x05 */
dannyman939	0:c746ee34feae	1739
dannyman939	0:c746ee34feae	1740	if (ni == 8) b <<= 2;
dannyman939	0:c746ee34feae	1741	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
dannyman939	0:c746ee34feae	1742	cf \|= NS_LFN;
dannyman939	0:c746ee34feae	1743	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */
dannyman939	0:c746ee34feae	1744	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
dannyman939	0:c746ee34feae	1745	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
dannyman939	0:c746ee34feae	1746	}
dannyman939	0:c746ee34feae	1747
dannyman939	0:c746ee34feae	1748	dj->fn[NS] = cf; /* SFN is created */
dannyman939	0:c746ee34feae	1749
dannyman939	0:c746ee34feae	1750	return FR_OK;
dannyman939	0:c746ee34feae	1751
dannyman939	0:c746ee34feae	1752
dannyman939	0:c746ee34feae	1753	#else /* Non-LFN configuration */
dannyman939	0:c746ee34feae	1754	BYTE b, c, d, *sfn;
dannyman939	0:c746ee34feae	1755	UINT ni, si, i;
dannyman939	0:c746ee34feae	1756	const char *p;
dannyman939	0:c746ee34feae	1757
dannyman939	0:c746ee34feae	1758	/* Create file name in directory form */
dannyman939	0:c746ee34feae	1759	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
dannyman939	0:c746ee34feae	1760	sfn = dj->fn;
dannyman939	0:c746ee34feae	1761	mem_set(sfn, ' ', 11);
dannyman939	0:c746ee34feae	1762	si = i = b = 0; ni = 8;
dannyman939	0:c746ee34feae	1763	#if _FS_RPATH
dannyman939	0:c746ee34feae	1764	if (p[si] == '.') { /* Is this a dot entry? */
dannyman939	0:c746ee34feae	1765	for (;;) {
dannyman939	0:c746ee34feae	1766	c = (BYTE)p[si++];
dannyman939	0:c746ee34feae	1767	if (c != '.' \|\| si >= 3) break;
dannyman939	0:c746ee34feae	1768	sfn[i++] = c;
dannyman939	0:c746ee34feae	1769	}
dannyman939	0:c746ee34feae	1770	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
dannyman939	0:c746ee34feae	1771	path = &p[si]; / Return pointer to the next segment */
dannyman939	0:c746ee34feae	1772	sfn[NS] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
dannyman939	0:c746ee34feae	1773	return FR_OK;
dannyman939	0:c746ee34feae	1774	}
dannyman939	0:c746ee34feae	1775	#endif
dannyman939	0:c746ee34feae	1776	for (;;) {
dannyman939	0:c746ee34feae	1777	c = (BYTE)p[si++];
dannyman939	0:c746ee34feae	1778	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
dannyman939	0:c746ee34feae	1779	if (c == '.' \|\| i >= ni) {
dannyman939	0:c746ee34feae	1780	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
dannyman939	0:c746ee34feae	1781	i = 8; ni = 11;
dannyman939	0:c746ee34feae	1782	b <<= 2; continue;
dannyman939	0:c746ee34feae	1783	}
dannyman939	0:c746ee34feae	1784	if (c >= 0x80) { /* Extended char? */
dannyman939	0:c746ee34feae	1785	b \|= 3; /* Eliminate NT flag */
dannyman939	0:c746ee34feae	1786	#ifdef _EXCVT
dannyman939	0:c746ee34feae	1787	c = excvt[c-0x80]; /* Upper conversion (SBCS) */
dannyman939	0:c746ee34feae	1788	#else
dannyman939	0:c746ee34feae	1789	#if !_DF1S /* ASCII only cfg */
dannyman939	0:c746ee34feae	1790	return FR_INVALID_NAME;
dannyman939	0:c746ee34feae	1791	#endif
dannyman939	0:c746ee34feae	1792	#endif
dannyman939	0:c746ee34feae	1793	}
dannyman939	0:c746ee34feae	1794	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
dannyman939	0:c746ee34feae	1795	d = (BYTE)p[si++]; /* Get 2nd byte */
dannyman939	0:c746ee34feae	1796	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
dannyman939	0:c746ee34feae	1797	return FR_INVALID_NAME;
dannyman939	0:c746ee34feae	1798	sfn[i++] = c;
dannyman939	0:c746ee34feae	1799	sfn[i++] = d;
dannyman939	0:c746ee34feae	1800	} else { /* Single byte code */
dannyman939	0:c746ee34feae	1801	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
dannyman939	0:c746ee34feae	1802	return FR_INVALID_NAME;
dannyman939	0:c746ee34feae	1803	if (IsUpper(c)) { /* ASCII large capital? */
dannyman939	0:c746ee34feae	1804	b \|= 2;
dannyman939	0:c746ee34feae	1805	} else {
dannyman939	0:c746ee34feae	1806	if (IsLower(c)) { /* ASCII small capital? */
dannyman939	0:c746ee34feae	1807	b \|= 1; c -= 0x20;
dannyman939	0:c746ee34feae	1808	}
dannyman939	0:c746ee34feae	1809	}
dannyman939	0:c746ee34feae	1810	sfn[i++] = c;
dannyman939	0:c746ee34feae	1811	}
dannyman939	0:c746ee34feae	1812	}
dannyman939	0:c746ee34feae	1813	path = &p[si]; / Return pointer to the next segment */
dannyman939	0:c746ee34feae	1814	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
dannyman939	0:c746ee34feae	1815
dannyman939	0:c746ee34feae	1816	if (!i) return FR_INVALID_NAME; /* Reject nul string */
dannyman939	0:c746ee34feae	1817	if (sfn[0] == DDE) sfn[0] = NDDE; /* When first char collides with DDE, replace it with 0x05 */
dannyman939	0:c746ee34feae	1818
dannyman939	0:c746ee34feae	1819	if (ni == 8) b <<= 2;
dannyman939	0:c746ee34feae	1820	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
dannyman939	0:c746ee34feae	1821	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
dannyman939	0:c746ee34feae	1822
dannyman939	0:c746ee34feae	1823	sfn[NS] = c; /* Store NT flag, File name is created */
dannyman939	0:c746ee34feae	1824
dannyman939	0:c746ee34feae	1825	return FR_OK;
dannyman939	0:c746ee34feae	1826	#endif
dannyman939	0:c746ee34feae	1827	}
dannyman939	0:c746ee34feae	1828
dannyman939	0:c746ee34feae	1829
dannyman939	0:c746ee34feae	1830
dannyman939	0:c746ee34feae	1831
dannyman939	0:c746ee34feae	1832	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1833	/* Get file information from directory entry */
dannyman939	0:c746ee34feae	1834	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1835	#if _FS_MINIMIZE <= 1
dannyman939	0:c746ee34feae	1836	static
dannyman939	0:c746ee34feae	1837	void get_fileinfo ( /* No return code */
dannyman939	0:c746ee34feae	1838	FATFS_DIR dj, / Pointer to the directory object */
dannyman939	0:c746ee34feae	1839	FILINFO fno / Pointer to the file information to be filled */
dannyman939	0:c746ee34feae	1840	)
dannyman939	0:c746ee34feae	1841	{
dannyman939	0:c746ee34feae	1842	UINT i;
dannyman939	0:c746ee34feae	1843	BYTE nt, *dir;
dannyman939	0:c746ee34feae	1844	TCHAR *p, c;
dannyman939	0:c746ee34feae	1845
dannyman939	0:c746ee34feae	1846
dannyman939	0:c746ee34feae	1847	p = fno->fname;
dannyman939	0:c746ee34feae	1848	if (dj->sect) {
dannyman939	0:c746ee34feae	1849	dir = dj->dir;
dannyman939	0:c746ee34feae	1850	nt = dir[DIR_NTres]; /* NT flag */
dannyman939	0:c746ee34feae	1851	for (i = 0; i < 8; i++) { /* Copy name body */
dannyman939	0:c746ee34feae	1852	c = dir[i];
dannyman939	0:c746ee34feae	1853	if (c == ' ') break;
dannyman939	0:c746ee34feae	1854	if (c == NDDE) c = (TCHAR)DDE;
dannyman939	0:c746ee34feae	1855	if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
dannyman939	0:c746ee34feae	1856	#if _LFN_UNICODE
dannyman939	0:c746ee34feae	1857	if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i+1]))
dannyman939	0:c746ee34feae	1858	c = (c << 8) \| dir[++i];
dannyman939	0:c746ee34feae	1859	c = ff_convert(c, 1);
dannyman939	0:c746ee34feae	1860	if (!c) c = '?';
dannyman939	0:c746ee34feae	1861	#endif
dannyman939	0:c746ee34feae	1862	*p++ = c;
dannyman939	0:c746ee34feae	1863	}
dannyman939	0:c746ee34feae	1864	if (dir[8] != ' ') { /* Copy name extension */
dannyman939	0:c746ee34feae	1865	*p++ = '.';
dannyman939	0:c746ee34feae	1866	for (i = 8; i < 11; i++) {
dannyman939	0:c746ee34feae	1867	c = dir[i];
dannyman939	0:c746ee34feae	1868	if (c == ' ') break;
dannyman939	0:c746ee34feae	1869	if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
dannyman939	0:c746ee34feae	1870	#if _LFN_UNICODE
dannyman939	0:c746ee34feae	1871	if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i+1]))
dannyman939	0:c746ee34feae	1872	c = (c << 8) \| dir[++i];
dannyman939	0:c746ee34feae	1873	c = ff_convert(c, 1);
dannyman939	0:c746ee34feae	1874	if (!c) c = '?';
dannyman939	0:c746ee34feae	1875	#endif
dannyman939	0:c746ee34feae	1876	*p++ = c;
dannyman939	0:c746ee34feae	1877	}
dannyman939	0:c746ee34feae	1878	}
dannyman939	0:c746ee34feae	1879	fno->fattrib = dir[DIR_Attr]; /* Attribute */
dannyman939	0:c746ee34feae	1880	fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
dannyman939	0:c746ee34feae	1881	fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
dannyman939	0:c746ee34feae	1882	fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
dannyman939	0:c746ee34feae	1883	}
dannyman939	0:c746ee34feae	1884	p = 0; / Terminate SFN str by a \0 */
dannyman939	0:c746ee34feae	1885
dannyman939	0:c746ee34feae	1886	#if _USE_LFN
dannyman939	0:c746ee34feae	1887	if (fno->lfname && fno->lfsize) {
dannyman939	0:c746ee34feae	1888	TCHAR *tp = fno->lfname;
dannyman939	0:c746ee34feae	1889	WCHAR w, *lfn;
dannyman939	0:c746ee34feae	1890
dannyman939	0:c746ee34feae	1891	i = 0;
dannyman939	0:c746ee34feae	1892	if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
dannyman939	0:c746ee34feae	1893	lfn = dj->lfn;
dannyman939	0:c746ee34feae	1894	while ((w = lfn++) != 0) { / Get an LFN char */
dannyman939	0:c746ee34feae	1895	#if !_LFN_UNICODE
dannyman939	0:c746ee34feae	1896	w = ff_convert(w, 0); /* Unicode -> OEM conversion */
dannyman939	0:c746ee34feae	1897	if (!w) { i = 0; break; } /* Could not convert, no LFN */
dannyman939	0:c746ee34feae	1898	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
dannyman939	0:c746ee34feae	1899	tp[i++] = (TCHAR)(w >> 8);
dannyman939	0:c746ee34feae	1900	#endif
dannyman939	0:c746ee34feae	1901	if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overflow, no LFN */
dannyman939	0:c746ee34feae	1902	tp[i++] = (TCHAR)w;
dannyman939	0:c746ee34feae	1903	}
dannyman939	0:c746ee34feae	1904	}
dannyman939	0:c746ee34feae	1905	tp[i] = 0; /* Terminate the LFN str by a \0 */
dannyman939	0:c746ee34feae	1906	}
dannyman939	0:c746ee34feae	1907	#endif
dannyman939	0:c746ee34feae	1908	}
dannyman939	0:c746ee34feae	1909	#endif /* _FS_MINIMIZE <= 1 */
dannyman939	0:c746ee34feae	1910
dannyman939	0:c746ee34feae	1911
dannyman939	0:c746ee34feae	1912
dannyman939	0:c746ee34feae	1913
dannyman939	0:c746ee34feae	1914	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1915	/* Follow a file path */
dannyman939	0:c746ee34feae	1916	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1917
dannyman939	0:c746ee34feae	1918	static
dannyman939	0:c746ee34feae	1919	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
dannyman939	0:c746ee34feae	1920	FATFS_DIR dj, / Directory object to return last directory and found object */
dannyman939	0:c746ee34feae	1921	const TCHAR path / Full-path string to find a file or directory */
dannyman939	0:c746ee34feae	1922	)
dannyman939	0:c746ee34feae	1923	{
dannyman939	0:c746ee34feae	1924	FRESULT res;
dannyman939	0:c746ee34feae	1925	BYTE *dir, ns;
dannyman939	0:c746ee34feae	1926
dannyman939	0:c746ee34feae	1927
dannyman939	0:c746ee34feae	1928	#if _FS_RPATH
dannyman939	0:c746ee34feae	1929	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
dannyman939	0:c746ee34feae	1930	path++; dj->sclust = 0; /* Strip it and start from the root dir */
dannyman939	0:c746ee34feae	1931	} else { /* No heading separator */
dannyman939	0:c746ee34feae	1932	dj->sclust = dj->fs->cdir; /* Start from the current dir */
dannyman939	0:c746ee34feae	1933	}
dannyman939	0:c746ee34feae	1934	#else
dannyman939	0:c746ee34feae	1935	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
dannyman939	0:c746ee34feae	1936	path++;
dannyman939	0:c746ee34feae	1937	dj->sclust = 0; /* Start from the root dir */
dannyman939	0:c746ee34feae	1938	#endif
dannyman939	0:c746ee34feae	1939
dannyman939	0:c746ee34feae	1940	if ((UINT)path < ' ') { / Nul path means the start directory itself */
dannyman939	0:c746ee34feae	1941	res = dir_sdi(dj, 0);
dannyman939	0:c746ee34feae	1942	dj->dir = 0;
dannyman939	0:c746ee34feae	1943
dannyman939	0:c746ee34feae	1944	} else { /* Follow path */
dannyman939	0:c746ee34feae	1945	for (;;) {
dannyman939	0:c746ee34feae	1946	res = create_name(dj, &path); /* Get a segment */
dannyman939	0:c746ee34feae	1947	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	1948	res = dir_find(dj); /* Find it */
dannyman939	0:c746ee34feae	1949	ns = *(dj->fn+NS);
dannyman939	0:c746ee34feae	1950	if (res != FR_OK) { /* Failed to find the object */
dannyman939	0:c746ee34feae	1951	if (res != FR_NO_FILE) break; /* Abort if any hard error occured */
dannyman939	0:c746ee34feae	1952	/* Object not found */
dannyman939	0:c746ee34feae	1953	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exit */
dannyman939	0:c746ee34feae	1954	dj->sclust = 0; dj->dir = 0; /* It is the root dir */
dannyman939	0:c746ee34feae	1955	res = FR_OK;
dannyman939	0:c746ee34feae	1956	if (!(ns & NS_LAST)) continue;
dannyman939	0:c746ee34feae	1957	} else { /* Could not find the object */
dannyman939	0:c746ee34feae	1958	if (!(ns & NS_LAST)) res = FR_NO_PATH;
dannyman939	0:c746ee34feae	1959	}
dannyman939	0:c746ee34feae	1960	break;
dannyman939	0:c746ee34feae	1961	}
dannyman939	0:c746ee34feae	1962	if (ns & NS_LAST) break; /* Last segment match. Function completed. */
dannyman939	0:c746ee34feae	1963	dir = dj->dir; /* There is next segment. Follow the sub directory */
dannyman939	0:c746ee34feae	1964	if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
dannyman939	0:c746ee34feae	1965	res = FR_NO_PATH; break;
dannyman939	0:c746ee34feae	1966	}
dannyman939	0:c746ee34feae	1967	dj->sclust = LD_CLUST(dir);
dannyman939	0:c746ee34feae	1968	}
dannyman939	0:c746ee34feae	1969	}
dannyman939	0:c746ee34feae	1970
dannyman939	0:c746ee34feae	1971	return res;
dannyman939	0:c746ee34feae	1972	}
dannyman939	0:c746ee34feae	1973
dannyman939	0:c746ee34feae	1974
dannyman939	0:c746ee34feae	1975
dannyman939	0:c746ee34feae	1976
dannyman939	0:c746ee34feae	1977	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1978	/* Load a sector and check if it is an FAT Volume Boot Record */
dannyman939	0:c746ee34feae	1979	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	1980
dannyman939	0:c746ee34feae	1981	static
dannyman939	0:c746ee34feae	1982	BYTE check_fs ( /* 0:FAT-VBR, 1:Valid BR but not FAT, 2:Not a BR, 3:Disk error */
dannyman939	0:c746ee34feae	1983	FATFS fs, / File system object */
dannyman939	0:c746ee34feae	1984	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
dannyman939	0:c746ee34feae	1985	)
dannyman939	0:c746ee34feae	1986	{
dannyman939	0:c746ee34feae	1987	if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK) /* Load boot record */
dannyman939	0:c746ee34feae	1988	return 3;
dannyman939	0:c746ee34feae	1989	if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
dannyman939	0:c746ee34feae	1990	return 2;
dannyman939	0:c746ee34feae	1991
dannyman939	0:c746ee34feae	1992	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
dannyman939	0:c746ee34feae	1993	return 0;
dannyman939	0:c746ee34feae	1994	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
dannyman939	0:c746ee34feae	1995	return 0;
dannyman939	0:c746ee34feae	1996
dannyman939	0:c746ee34feae	1997	return 1;
dannyman939	0:c746ee34feae	1998	}
dannyman939	0:c746ee34feae	1999
dannyman939	0:c746ee34feae	2000
dannyman939	0:c746ee34feae	2001
dannyman939	0:c746ee34feae	2002
dannyman939	0:c746ee34feae	2003	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2004	/* Check if the file system object is valid or not */
dannyman939	0:c746ee34feae	2005	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2006
dannyman939	0:c746ee34feae	2007	static
dannyman939	0:c746ee34feae	2008	FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occurred */
dannyman939	0:c746ee34feae	2009	const TCHAR *path, / Pointer to pointer to the path name (drive number) */
dannyman939	0:c746ee34feae	2010	FATFS *rfs, / Pointer to pointer to the found file system object */
dannyman939	0:c746ee34feae	2011	BYTE chk_wp /* !=0: Check media write protection for write access */
dannyman939	0:c746ee34feae	2012	)
dannyman939	0:c746ee34feae	2013	{
dannyman939	0:c746ee34feae	2014	BYTE fmt, b, pi, *tbl;
dannyman939	0:c746ee34feae	2015	UINT vol;
dannyman939	0:c746ee34feae	2016	DSTATUS stat;
dannyman939	0:c746ee34feae	2017	DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
dannyman939	0:c746ee34feae	2018	WORD nrsv;
dannyman939	0:c746ee34feae	2019	const TCHAR p = path;
dannyman939	0:c746ee34feae	2020	FATFS *fs;
dannyman939	0:c746ee34feae	2021
dannyman939	0:c746ee34feae	2022	/* Get logical drive number from the path name */
dannyman939	0:c746ee34feae	2023	vol = p[0] - '0'; /* Is there a drive number? */
dannyman939	0:c746ee34feae	2024	if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */
dannyman939	0:c746ee34feae	2025	p += 2; path = p; / Return pointer to the path name */
dannyman939	0:c746ee34feae	2026	} else { /* No drive number is given */
dannyman939	0:c746ee34feae	2027	#if _FS_RPATH
dannyman939	0:c746ee34feae	2028	vol = CurrVol; /* Use current drive */
dannyman939	0:c746ee34feae	2029	#else
dannyman939	0:c746ee34feae	2030	vol = 0; /* Use drive 0 */
dannyman939	0:c746ee34feae	2031	#endif
dannyman939	0:c746ee34feae	2032	}
dannyman939	0:c746ee34feae	2033
dannyman939	0:c746ee34feae	2034	/* Check if the file system object is valid or not */
dannyman939	0:c746ee34feae	2035	if (vol >= _VOLUMES) /* Is the drive number valid? */
dannyman939	0:c746ee34feae	2036	return FR_INVALID_DRIVE;
dannyman939	0:c746ee34feae	2037	rfs = fs = FatFs[vol]; / Return pointer to the corresponding file system object */
dannyman939	0:c746ee34feae	2038	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
dannyman939	0:c746ee34feae	2039
dannyman939	0:c746ee34feae	2040	ENTER_FF(fs); /* Lock file system */
dannyman939	0:c746ee34feae	2041
dannyman939	0:c746ee34feae	2042	if (fs->fs_type) { /* If the logical drive has been mounted */
dannyman939	0:c746ee34feae	2043	stat = disk_status(fs->drv);
dannyman939	0:c746ee34feae	2044	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */
dannyman939	0:c746ee34feae	2045	if (!_FS_READONLY && chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */
dannyman939	0:c746ee34feae	2046	return FR_WRITE_PROTECTED;
dannyman939	0:c746ee34feae	2047	return FR_OK; /* The file system object is valid */
dannyman939	0:c746ee34feae	2048	}
dannyman939	0:c746ee34feae	2049	}
dannyman939	0:c746ee34feae	2050
dannyman939	0:c746ee34feae	2051	/* The file system object is not valid. */
dannyman939	0:c746ee34feae	2052	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
dannyman939	0:c746ee34feae	2053
dannyman939	0:c746ee34feae	2054	fs->fs_type = 0; /* Clear the file system object */
dannyman939	0:c746ee34feae	2055	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
dannyman939	0:c746ee34feae	2056	stat = disk_initialize(fs->drv); /* Initialize low level disk I/O layer */
dannyman939	0:c746ee34feae	2057	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
dannyman939	0:c746ee34feae	2058	return FR_NOT_READY; /* Failed to initialize due to no media or hard error */
dannyman939	0:c746ee34feae	2059	if (!_FS_READONLY && chk_wp && (stat & STA_PROTECT)) /* Check disk write protection if needed */
dannyman939	0:c746ee34feae	2060	return FR_WRITE_PROTECTED;
dannyman939	0:c746ee34feae	2061	#if _MAX_SS != 512 /* Get disk sector size (variable sector size cfg only) */
dannyman939	0:c746ee34feae	2062	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
dannyman939	0:c746ee34feae	2063	return FR_DISK_ERR;
dannyman939	0:c746ee34feae	2064	#endif
dannyman939	0:c746ee34feae	2065	/* Search FAT partition on the drive. Supports only generic partitionings, FDISK and SFD. */
dannyman939	0:c746ee34feae	2066	fmt = check_fs(fs, bsect = 0); /* Load sector 0 and check if it is an FAT-VBR (in SFD) */
dannyman939	0:c746ee34feae	2067	if (LD2PT(vol) && !fmt) fmt = 1; /* Force non-SFD if the volume is forced partition */
dannyman939	0:c746ee34feae	2068	if (fmt == 1) { /* Not an FAT-VBR, the physical drive can be partitioned */
dannyman939	0:c746ee34feae	2069	/* Check the partition listed in the partition table */
dannyman939	0:c746ee34feae	2070	pi = LD2PT(vol);
dannyman939	0:c746ee34feae	2071	if (pi) pi--;
dannyman939	0:c746ee34feae	2072	tbl = &fs->win[MBR_Table + pi * SZ_PTE];/* Partition table */
dannyman939	0:c746ee34feae	2073	if (tbl[4]) { /* Is the partition existing? */
dannyman939	0:c746ee34feae	2074	bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
dannyman939	0:c746ee34feae	2075	fmt = check_fs(fs, bsect); /* Check the partition */
dannyman939	0:c746ee34feae	2076	}
dannyman939	0:c746ee34feae	2077	}
dannyman939	0:c746ee34feae	2078	if (fmt == 3) return FR_DISK_ERR;
dannyman939	0:c746ee34feae	2079	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
dannyman939	0:c746ee34feae	2080
dannyman939	0:c746ee34feae	2081	/* An FAT volume is found. Following code initializes the file system object */
dannyman939	0:c746ee34feae	2082
dannyman939	0:c746ee34feae	2083	if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
dannyman939	0:c746ee34feae	2084	return FR_NO_FILESYSTEM;
dannyman939	0:c746ee34feae	2085
dannyman939	0:c746ee34feae	2086	fasize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */
dannyman939	0:c746ee34feae	2087	if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32);
dannyman939	0:c746ee34feae	2088	fs->fsize = fasize;
dannyman939	0:c746ee34feae	2089
dannyman939	0:c746ee34feae	2090	fs->n_fats = b = fs->win[BPB_NumFATs]; /* Number of FAT copies */
dannyman939	0:c746ee34feae	2091	if (b != 1 && b != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
dannyman939	0:c746ee34feae	2092	fasize = b; / Number of sectors for FAT area */
dannyman939	0:c746ee34feae	2093
dannyman939	0:c746ee34feae	2094	fs->csize = b = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
dannyman939	0:c746ee34feae	2095	if (!b \|\| (b & (b - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
dannyman939	0:c746ee34feae	2096
dannyman939	0:c746ee34feae	2097	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Number of root directory entries */
dannyman939	0:c746ee34feae	2098	if (fs->n_rootdir % (SS(fs) / SZ_DIR)) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be sector aligned) */
dannyman939	0:c746ee34feae	2099
dannyman939	0:c746ee34feae	2100	tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */
dannyman939	0:c746ee34feae	2101	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
dannyman939	0:c746ee34feae	2102
dannyman939	0:c746ee34feae	2103	nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt); /* Number of reserved sectors */
dannyman939	0:c746ee34feae	2104	if (!nrsv) return FR_NO_FILESYSTEM; /* (BPB_RsvdSecCnt must not be 0) */
dannyman939	0:c746ee34feae	2105
dannyman939	0:c746ee34feae	2106	/* Determine the FAT sub type */
dannyman939	0:c746ee34feae	2107	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR); /* RSV+FAT+FATFS_DIR */
dannyman939	0:c746ee34feae	2108	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
dannyman939	0:c746ee34feae	2109	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
dannyman939	0:c746ee34feae	2110	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
dannyman939	0:c746ee34feae	2111	fmt = FS_FAT12;
dannyman939	0:c746ee34feae	2112	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
dannyman939	0:c746ee34feae	2113	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
dannyman939	0:c746ee34feae	2114
dannyman939	0:c746ee34feae	2115	/* Boundaries and Limits */
dannyman939	0:c746ee34feae	2116	fs->n_fatent = nclst + 2; /* Number of FAT entries */
dannyman939	0:c746ee34feae	2117	fs->database = bsect + sysect; /* Data start sector */
dannyman939	0:c746ee34feae	2118	fs->fatbase = bsect + nrsv; /* FAT start sector */
dannyman939	0:c746ee34feae	2119	if (fmt == FS_FAT32) {
dannyman939	0:c746ee34feae	2120	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
dannyman939	0:c746ee34feae	2121	fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
dannyman939	0:c746ee34feae	2122	szbfat = fs->n_fatent * 4; /* (Required FAT size) */
dannyman939	0:c746ee34feae	2123	} else {
dannyman939	0:c746ee34feae	2124	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
dannyman939	0:c746ee34feae	2125	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
dannyman939	0:c746ee34feae	2126	szbfat = (fmt == FS_FAT16) ? /* (Required FAT size) */
dannyman939	0:c746ee34feae	2127	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
dannyman939	0:c746ee34feae	2128	}
dannyman939	0:c746ee34feae	2129	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than required) */
dannyman939	0:c746ee34feae	2130	return FR_NO_FILESYSTEM;
dannyman939	0:c746ee34feae	2131
dannyman939	0:c746ee34feae	2132	#if !_FS_READONLY
dannyman939	0:c746ee34feae	2133	/* Initialize cluster allocation information */
dannyman939	0:c746ee34feae	2134	fs->free_clust = 0xFFFFFFFF;
dannyman939	0:c746ee34feae	2135	fs->last_clust = 0;
dannyman939	0:c746ee34feae	2136
dannyman939	0:c746ee34feae	2137	/* Get fsinfo if available */
dannyman939	0:c746ee34feae	2138	if (fmt == FS_FAT32) {
dannyman939	0:c746ee34feae	2139	fs->fsi_flag = 0;
dannyman939	0:c746ee34feae	2140	fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
dannyman939	0:c746ee34feae	2141	if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK &&
dannyman939	0:c746ee34feae	2142	LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
dannyman939	0:c746ee34feae	2143	LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
dannyman939	0:c746ee34feae	2144	LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
dannyman939	0:c746ee34feae	2145	fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
dannyman939	0:c746ee34feae	2146	fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
dannyman939	0:c746ee34feae	2147	}
dannyman939	0:c746ee34feae	2148	}
dannyman939	0:c746ee34feae	2149	#endif
dannyman939	0:c746ee34feae	2150	fs->fs_type = fmt; /* FAT sub-type */
dannyman939	0:c746ee34feae	2151	fs->id = ++Fsid; /* File system mount ID */
dannyman939	0:c746ee34feae	2152	fs->winsect = 0; /* Invalidate sector cache */
dannyman939	0:c746ee34feae	2153	fs->wflag = 0;
dannyman939	0:c746ee34feae	2154	#if _FS_RPATH
dannyman939	0:c746ee34feae	2155	fs->cdir = 0; /* Current directory (root dir) */
dannyman939	0:c746ee34feae	2156	#endif
dannyman939	0:c746ee34feae	2157	#if _FS_SHARE /* Clear file lock semaphores */
dannyman939	0:c746ee34feae	2158	clear_lock(fs);
dannyman939	0:c746ee34feae	2159	#endif
dannyman939	0:c746ee34feae	2160
dannyman939	0:c746ee34feae	2161	return FR_OK;
dannyman939	0:c746ee34feae	2162	}
dannyman939	0:c746ee34feae	2163
dannyman939	0:c746ee34feae	2164
dannyman939	0:c746ee34feae	2165
dannyman939	0:c746ee34feae	2166
dannyman939	0:c746ee34feae	2167	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2168	/* Check if the file/dir object is valid or not */
dannyman939	0:c746ee34feae	2169	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2170
dannyman939	0:c746ee34feae	2171	static
dannyman939	0:c746ee34feae	2172	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
dannyman939	0:c746ee34feae	2173	FATFS fs, / Pointer to the file system object */
dannyman939	0:c746ee34feae	2174	WORD id /* Member id of the target object to be checked */
dannyman939	0:c746ee34feae	2175	)
dannyman939	0:c746ee34feae	2176	{
dannyman939	0:c746ee34feae	2177	if (!fs \|\| !fs->fs_type \|\| fs->id != id)
dannyman939	0:c746ee34feae	2178	return FR_INVALID_OBJECT;
dannyman939	0:c746ee34feae	2179
dannyman939	0:c746ee34feae	2180	ENTER_FF(fs); /* Lock file system */
dannyman939	0:c746ee34feae	2181
dannyman939	0:c746ee34feae	2182	if (disk_status(fs->drv) & STA_NOINIT)
dannyman939	0:c746ee34feae	2183	return FR_NOT_READY;
dannyman939	0:c746ee34feae	2184
dannyman939	0:c746ee34feae	2185	return FR_OK;
dannyman939	0:c746ee34feae	2186	}
dannyman939	0:c746ee34feae	2187
dannyman939	0:c746ee34feae	2188
dannyman939	0:c746ee34feae	2189
dannyman939	0:c746ee34feae	2190
dannyman939	0:c746ee34feae	2191	/*--------------------------------------------------------------------------
dannyman939	0:c746ee34feae	2192
dannyman939	0:c746ee34feae	2193	Public Functions
dannyman939	0:c746ee34feae	2194
dannyman939	0:c746ee34feae	2195	--------------------------------------------------------------------------*/
dannyman939	0:c746ee34feae	2196
dannyman939	0:c746ee34feae	2197
dannyman939	0:c746ee34feae	2198
dannyman939	0:c746ee34feae	2199	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2200	/* Mount/Unmount a Logical Drive */
dannyman939	0:c746ee34feae	2201	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2202
dannyman939	0:c746ee34feae	2203	FRESULT f_mount (
dannyman939	0:c746ee34feae	2204	BYTE vol, /* Logical drive number to be mounted/unmounted */
dannyman939	0:c746ee34feae	2205	FATFS fs / Pointer to new file system object (NULL for unmount)*/
dannyman939	0:c746ee34feae	2206	)
dannyman939	0:c746ee34feae	2207	{
dannyman939	0:c746ee34feae	2208	FATFS *rfs;
dannyman939	0:c746ee34feae	2209
dannyman939	0:c746ee34feae	2210
dannyman939	0:c746ee34feae	2211	if (vol >= _VOLUMES) /* Check if the drive number is valid */
dannyman939	0:c746ee34feae	2212	return FR_INVALID_DRIVE;
dannyman939	0:c746ee34feae	2213	rfs = FatFs[vol]; /* Get current fs object */
dannyman939	0:c746ee34feae	2214
dannyman939	0:c746ee34feae	2215	if (rfs) {
dannyman939	0:c746ee34feae	2216	#if _FS_SHARE
dannyman939	0:c746ee34feae	2217	clear_lock(rfs);
dannyman939	0:c746ee34feae	2218	#endif
dannyman939	0:c746ee34feae	2219	#if _FS_REENTRANT /* Discard sync object of the current volume */
dannyman939	0:c746ee34feae	2220	if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
dannyman939	0:c746ee34feae	2221	#endif
dannyman939	0:c746ee34feae	2222	rfs->fs_type = 0; /* Clear old fs object */
dannyman939	0:c746ee34feae	2223	}
dannyman939	0:c746ee34feae	2224
dannyman939	0:c746ee34feae	2225	if (fs) {
dannyman939	0:c746ee34feae	2226	fs->fs_type = 0; /* Clear new fs object */
dannyman939	0:c746ee34feae	2227	#if _FS_REENTRANT /* Create sync object for the new volume */
dannyman939	0:c746ee34feae	2228	if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
dannyman939	0:c746ee34feae	2229	#endif
dannyman939	0:c746ee34feae	2230	}
dannyman939	0:c746ee34feae	2231	FatFs[vol] = fs; /* Register new fs object */
dannyman939	0:c746ee34feae	2232
dannyman939	0:c746ee34feae	2233	return FR_OK;
dannyman939	0:c746ee34feae	2234	}
dannyman939	0:c746ee34feae	2235
dannyman939	0:c746ee34feae	2236
dannyman939	0:c746ee34feae	2237
dannyman939	0:c746ee34feae	2238
dannyman939	0:c746ee34feae	2239	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2240	/* Open or Create a File */
dannyman939	0:c746ee34feae	2241	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2242
dannyman939	0:c746ee34feae	2243	FRESULT f_open (
dannyman939	0:c746ee34feae	2244	FIL fp, / Pointer to the blank file object */
dannyman939	0:c746ee34feae	2245	const TCHAR path, / Pointer to the file name */
dannyman939	0:c746ee34feae	2246	BYTE mode /* Access mode and file open mode flags */
dannyman939	0:c746ee34feae	2247	)
dannyman939	0:c746ee34feae	2248	{
dannyman939	0:c746ee34feae	2249	FRESULT res;
dannyman939	0:c746ee34feae	2250	FATFS_DIR dj;
dannyman939	0:c746ee34feae	2251	BYTE *dir;
dannyman939	0:c746ee34feae	2252	DEF_NAMEBUF;
dannyman939	0:c746ee34feae	2253
dannyman939	0:c746ee34feae	2254
dannyman939	0:c746ee34feae	2255	fp->fs = 0; /* Clear file object */
dannyman939	0:c746ee34feae	2256
dannyman939	0:c746ee34feae	2257	#if !_FS_READONLY
dannyman939	0:c746ee34feae	2258	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
dannyman939	0:c746ee34feae	2259	res = chk_mounted(&path, &dj.fs, (BYTE)(mode & ~FA_READ));
dannyman939	0:c746ee34feae	2260	#else
dannyman939	0:c746ee34feae	2261	mode &= FA_READ;
dannyman939	0:c746ee34feae	2262	res = chk_mounted(&path, &dj.fs, 0);
dannyman939	0:c746ee34feae	2263	#endif
dannyman939	0:c746ee34feae	2264	INIT_BUF(dj);
dannyman939	0:c746ee34feae	2265	if (res == FR_OK)
dannyman939	0:c746ee34feae	2266	res = follow_path(&dj, path); /* Follow the file path */
dannyman939	0:c746ee34feae	2267	dir = dj.dir;
dannyman939	0:c746ee34feae	2268
dannyman939	0:c746ee34feae	2269	#if !_FS_READONLY /* R/W configuration */
dannyman939	0:c746ee34feae	2270	if (res == FR_OK) {
dannyman939	0:c746ee34feae	2271	if (!dir) /* Current dir itself */
dannyman939	0:c746ee34feae	2272	res = FR_INVALID_NAME;
dannyman939	0:c746ee34feae	2273	#if _FS_SHARE
dannyman939	0:c746ee34feae	2274	else
dannyman939	0:c746ee34feae	2275	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
dannyman939	0:c746ee34feae	2276	#endif
dannyman939	0:c746ee34feae	2277	}
dannyman939	0:c746ee34feae	2278	/* Create or Open a file */
dannyman939	0:c746ee34feae	2279	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
dannyman939	0:c746ee34feae	2280	DWORD dw, cl;
dannyman939	0:c746ee34feae	2281
dannyman939	0:c746ee34feae	2282	if (res != FR_OK) { /* No file, create new */
dannyman939	0:c746ee34feae	2283	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
dannyman939	0:c746ee34feae	2284	#if _FS_SHARE
dannyman939	0:c746ee34feae	2285	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
dannyman939	0:c746ee34feae	2286	#else
dannyman939	0:c746ee34feae	2287	res = dir_register(&dj);
dannyman939	0:c746ee34feae	2288	#endif
dannyman939	0:c746ee34feae	2289	mode \|= FA_CREATE_ALWAYS; /* File is created */
dannyman939	0:c746ee34feae	2290	dir = dj.dir; /* New entry */
dannyman939	0:c746ee34feae	2291	}
dannyman939	0:c746ee34feae	2292	else { /* Any object is already existing */
dannyman939	0:c746ee34feae	2293	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or FATFS_DIR) */
dannyman939	0:c746ee34feae	2294	res = FR_DENIED;
dannyman939	0:c746ee34feae	2295	} else {
dannyman939	0:c746ee34feae	2296	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
dannyman939	0:c746ee34feae	2297	res = FR_EXIST;
dannyman939	0:c746ee34feae	2298	}
dannyman939	0:c746ee34feae	2299	}
dannyman939	0:c746ee34feae	2300	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
dannyman939	0:c746ee34feae	2301	dw = get_fattime(); /* Created time */
dannyman939	0:c746ee34feae	2302	ST_DWORD(dir+DIR_CrtTime, dw);
dannyman939	0:c746ee34feae	2303	dir[DIR_Attr] = 0; /* Reset attribute */
dannyman939	0:c746ee34feae	2304	ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
dannyman939	0:c746ee34feae	2305	cl = LD_CLUST(dir); /* Get start cluster */
dannyman939	0:c746ee34feae	2306	ST_CLUST(dir, 0); /* cluster = 0 */
dannyman939	0:c746ee34feae	2307	dj.fs->wflag = 1;
dannyman939	0:c746ee34feae	2308	if (cl) { /* Remove the cluster chain if exist */
dannyman939	0:c746ee34feae	2309	dw = dj.fs->winsect;
dannyman939	0:c746ee34feae	2310	res = remove_chain(dj.fs, cl);
dannyman939	0:c746ee34feae	2311	if (res == FR_OK) {
dannyman939	0:c746ee34feae	2312	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
dannyman939	0:c746ee34feae	2313	res = move_window(dj.fs, dw);
dannyman939	0:c746ee34feae	2314	}
dannyman939	0:c746ee34feae	2315	}
dannyman939	0:c746ee34feae	2316	}
dannyman939	0:c746ee34feae	2317	}
dannyman939	0:c746ee34feae	2318	else { /* Open an existing file */
dannyman939	0:c746ee34feae	2319	if (res == FR_OK) { /* Follow succeeded */
dannyman939	0:c746ee34feae	2320	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
dannyman939	0:c746ee34feae	2321	res = FR_NO_FILE;
dannyman939	0:c746ee34feae	2322	} else {
dannyman939	0:c746ee34feae	2323	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
dannyman939	0:c746ee34feae	2324	res = FR_DENIED;
dannyman939	0:c746ee34feae	2325	}
dannyman939	0:c746ee34feae	2326	}
dannyman939	0:c746ee34feae	2327	}
dannyman939	0:c746ee34feae	2328	if (res == FR_OK) {
dannyman939	0:c746ee34feae	2329	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
dannyman939	0:c746ee34feae	2330	mode \|= FA__WRITTEN;
dannyman939	0:c746ee34feae	2331	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
dannyman939	0:c746ee34feae	2332	fp->dir_ptr = dir;
dannyman939	0:c746ee34feae	2333	#if _FS_SHARE
dannyman939	0:c746ee34feae	2334	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
dannyman939	0:c746ee34feae	2335	if (!fp->lockid) res = FR_INT_ERR;
dannyman939	0:c746ee34feae	2336	#endif
dannyman939	0:c746ee34feae	2337	}
dannyman939	0:c746ee34feae	2338
dannyman939	0:c746ee34feae	2339	#else /* R/O configuration */
dannyman939	0:c746ee34feae	2340	if (res == FR_OK) { /* Follow succeeded */
dannyman939	0:c746ee34feae	2341	if (!dir) { /* Current dir itself */
dannyman939	0:c746ee34feae	2342	res = FR_INVALID_NAME;
dannyman939	0:c746ee34feae	2343	} else {
dannyman939	0:c746ee34feae	2344	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
dannyman939	0:c746ee34feae	2345	res = FR_NO_FILE;
dannyman939	0:c746ee34feae	2346	}
dannyman939	0:c746ee34feae	2347	}
dannyman939	0:c746ee34feae	2348	#endif
dannyman939	0:c746ee34feae	2349	FREE_BUF();
dannyman939	0:c746ee34feae	2350
dannyman939	0:c746ee34feae	2351	if (res == FR_OK) {
dannyman939	0:c746ee34feae	2352	fp->flag = mode; /* File access mode */
dannyman939	0:c746ee34feae	2353	fp->sclust = LD_CLUST(dir); /* File start cluster */
dannyman939	0:c746ee34feae	2354	fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
dannyman939	0:c746ee34feae	2355	fp->fptr = 0; /* File pointer */
dannyman939	0:c746ee34feae	2356	fp->dsect = 0;
dannyman939	0:c746ee34feae	2357	#if _USE_FASTSEEK
dannyman939	0:c746ee34feae	2358	fp->cltbl = 0; /* Normal seek mode */
dannyman939	0:c746ee34feae	2359	#endif
dannyman939	0:c746ee34feae	2360	fp->fs = dj.fs; fp->id = dj.fs->id; /* Validate file object */
dannyman939	0:c746ee34feae	2361	}
dannyman939	0:c746ee34feae	2362
dannyman939	0:c746ee34feae	2363	LEAVE_FF(dj.fs, res);
dannyman939	0:c746ee34feae	2364	}
dannyman939	0:c746ee34feae	2365
dannyman939	0:c746ee34feae	2366
dannyman939	0:c746ee34feae	2367
dannyman939	0:c746ee34feae	2368
dannyman939	0:c746ee34feae	2369	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2370	/* Read File */
dannyman939	0:c746ee34feae	2371	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2372
dannyman939	0:c746ee34feae	2373	FRESULT f_read (
dannyman939	0:c746ee34feae	2374	FIL fp, / Pointer to the file object */
dannyman939	0:c746ee34feae	2375	void buff, / Pointer to data buffer */
dannyman939	0:c746ee34feae	2376	UINT btr, /* Number of bytes to read */
dannyman939	0:c746ee34feae	2377	UINT br / Pointer to number of bytes read */
dannyman939	0:c746ee34feae	2378	)
dannyman939	0:c746ee34feae	2379	{
dannyman939	0:c746ee34feae	2380	FRESULT res;
dannyman939	0:c746ee34feae	2381	DWORD clst, sect, remain;
dannyman939	0:c746ee34feae	2382	UINT rcnt, cc;
dannyman939	0:c746ee34feae	2383	BYTE csect, rbuff = (BYTE)buff;
dannyman939	0:c746ee34feae	2384
dannyman939	0:c746ee34feae	2385
dannyman939	0:c746ee34feae	2386	br = 0; / Initialize byte counter */
dannyman939	0:c746ee34feae	2387
dannyman939	0:c746ee34feae	2388	res = validate(fp->fs, fp->id); /* Check validity */
dannyman939	0:c746ee34feae	2389	if (res != FR_OK) LEAVE_FF(fp->fs, res);
dannyman939	0:c746ee34feae	2390	if (fp->flag & FA__ERROR) /* Aborted file? */
dannyman939	0:c746ee34feae	2391	LEAVE_FF(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	2392	if (!(fp->flag & FA_READ)) /* Check access mode */
dannyman939	0:c746ee34feae	2393	LEAVE_FF(fp->fs, FR_DENIED);
dannyman939	0:c746ee34feae	2394	remain = fp->fsize - fp->fptr;
dannyman939	0:c746ee34feae	2395	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
dannyman939	0:c746ee34feae	2396
dannyman939	0:c746ee34feae	2397	for ( ; btr; /* Repeat until all data read */
dannyman939	0:c746ee34feae	2398	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
dannyman939	0:c746ee34feae	2399	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
dannyman939	0:c746ee34feae	2400	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
dannyman939	0:c746ee34feae	2401	if (!csect) { /* On the cluster boundary? */
dannyman939	0:c746ee34feae	2402	if (fp->fptr == 0) { /* On the top of the file? */
dannyman939	0:c746ee34feae	2403	clst = fp->sclust; /* Follow from the origin */
dannyman939	0:c746ee34feae	2404	} else { /* Middle or end of the file */
dannyman939	0:c746ee34feae	2405	#if _USE_FASTSEEK
dannyman939	0:c746ee34feae	2406	if (fp->cltbl)
dannyman939	0:c746ee34feae	2407	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
dannyman939	0:c746ee34feae	2408	else
dannyman939	0:c746ee34feae	2409	#endif
dannyman939	0:c746ee34feae	2410	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
dannyman939	0:c746ee34feae	2411	}
dannyman939	0:c746ee34feae	2412	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	2413	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2414	fp->clust = clst; /* Update current cluster */
dannyman939	0:c746ee34feae	2415	}
dannyman939	0:c746ee34feae	2416	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
dannyman939	0:c746ee34feae	2417	if (!sect) ABORT(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	2418	sect += csect;
dannyman939	0:c746ee34feae	2419	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
dannyman939	0:c746ee34feae	2420	if (cc) { /* Read maximum contiguous sectors directly */
dannyman939	0:c746ee34feae	2421	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
dannyman939	0:c746ee34feae	2422	cc = fp->fs->csize - csect;
dannyman939	0:c746ee34feae	2423	if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK)
dannyman939	0:c746ee34feae	2424	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2425	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
dannyman939	0:c746ee34feae	2426	#if _FS_TINY
dannyman939	0:c746ee34feae	2427	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
dannyman939	0:c746ee34feae	2428	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
dannyman939	0:c746ee34feae	2429	#else
dannyman939	0:c746ee34feae	2430	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
dannyman939	0:c746ee34feae	2431	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
dannyman939	0:c746ee34feae	2432	#endif
dannyman939	0:c746ee34feae	2433	#endif
dannyman939	0:c746ee34feae	2434	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
dannyman939	0:c746ee34feae	2435	continue;
dannyman939	0:c746ee34feae	2436	}
dannyman939	0:c746ee34feae	2437	#if !_FS_TINY
dannyman939	0:c746ee34feae	2438	if (fp->dsect != sect) { /* Load data sector if not in cache */
dannyman939	0:c746ee34feae	2439	#if !_FS_READONLY
dannyman939	0:c746ee34feae	2440	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
dannyman939	0:c746ee34feae	2441	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
dannyman939	0:c746ee34feae	2442	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2443	fp->flag &= ~FA__DIRTY;
dannyman939	0:c746ee34feae	2444	}
dannyman939	0:c746ee34feae	2445	#endif
dannyman939	0:c746ee34feae	2446	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
dannyman939	0:c746ee34feae	2447	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2448	}
dannyman939	0:c746ee34feae	2449	#endif
dannyman939	0:c746ee34feae	2450	fp->dsect = sect;
dannyman939	0:c746ee34feae	2451	}
dannyman939	0:c746ee34feae	2452	rcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
dannyman939	0:c746ee34feae	2453	if (rcnt > btr) rcnt = btr;
dannyman939	0:c746ee34feae	2454	#if _FS_TINY
dannyman939	0:c746ee34feae	2455	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
dannyman939	0:c746ee34feae	2456	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2457	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
dannyman939	0:c746ee34feae	2458	#else
dannyman939	0:c746ee34feae	2459	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
dannyman939	0:c746ee34feae	2460	#endif
dannyman939	0:c746ee34feae	2461	}
dannyman939	0:c746ee34feae	2462
dannyman939	0:c746ee34feae	2463	LEAVE_FF(fp->fs, FR_OK);
dannyman939	0:c746ee34feae	2464	}
dannyman939	0:c746ee34feae	2465
dannyman939	0:c746ee34feae	2466
dannyman939	0:c746ee34feae	2467
dannyman939	0:c746ee34feae	2468
dannyman939	0:c746ee34feae	2469	#if !_FS_READONLY
dannyman939	0:c746ee34feae	2470	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2471	/* Write File */
dannyman939	0:c746ee34feae	2472	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2473
dannyman939	0:c746ee34feae	2474	FRESULT f_write (
dannyman939	0:c746ee34feae	2475	FIL fp, / Pointer to the file object */
dannyman939	0:c746ee34feae	2476	const void buff, / Pointer to the data to be written */
dannyman939	0:c746ee34feae	2477	UINT btw, /* Number of bytes to write */
dannyman939	0:c746ee34feae	2478	UINT bw / Pointer to number of bytes written */
dannyman939	0:c746ee34feae	2479	)
dannyman939	0:c746ee34feae	2480	{
dannyman939	0:c746ee34feae	2481	FRESULT res;
dannyman939	0:c746ee34feae	2482	DWORD clst, sect;
dannyman939	0:c746ee34feae	2483	UINT wcnt, cc;
dannyman939	0:c746ee34feae	2484	const BYTE wbuff = (const BYTE)buff;
dannyman939	0:c746ee34feae	2485	BYTE csect;
dannyman939	0:c746ee34feae	2486
dannyman939	0:c746ee34feae	2487
dannyman939	0:c746ee34feae	2488	bw = 0; / Initialize byte counter */
dannyman939	0:c746ee34feae	2489
dannyman939	0:c746ee34feae	2490	res = validate(fp->fs, fp->id); /* Check validity */
dannyman939	0:c746ee34feae	2491	if (res != FR_OK) LEAVE_FF(fp->fs, res);
dannyman939	0:c746ee34feae	2492	if (fp->flag & FA__ERROR) /* Aborted file? */
dannyman939	0:c746ee34feae	2493	LEAVE_FF(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	2494	if (!(fp->flag & FA_WRITE)) /* Check access mode */
dannyman939	0:c746ee34feae	2495	LEAVE_FF(fp->fs, FR_DENIED);
dannyman939	0:c746ee34feae	2496	if ((DWORD)(fp->fsize + btw) < fp->fsize) btw = 0; /* File size cannot reach 4GB */
dannyman939	0:c746ee34feae	2497
dannyman939	0:c746ee34feae	2498	for ( ; btw; /* Repeat until all data written */
dannyman939	0:c746ee34feae	2499	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
dannyman939	0:c746ee34feae	2500	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
dannyman939	0:c746ee34feae	2501	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
dannyman939	0:c746ee34feae	2502	if (!csect) { /* On the cluster boundary? */
dannyman939	0:c746ee34feae	2503	if (fp->fptr == 0) { /* On the top of the file? */
dannyman939	0:c746ee34feae	2504	clst = fp->sclust; /* Follow from the origin */
dannyman939	0:c746ee34feae	2505	if (clst == 0) /* When no cluster is allocated, */
dannyman939	0:c746ee34feae	2506	fp->sclust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
dannyman939	0:c746ee34feae	2507	} else { /* Middle or end of the file */
dannyman939	0:c746ee34feae	2508	#if _USE_FASTSEEK
dannyman939	0:c746ee34feae	2509	if (fp->cltbl)
dannyman939	0:c746ee34feae	2510	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
dannyman939	0:c746ee34feae	2511	else
dannyman939	0:c746ee34feae	2512	#endif
dannyman939	0:c746ee34feae	2513	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
dannyman939	0:c746ee34feae	2514	}
dannyman939	0:c746ee34feae	2515	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
dannyman939	0:c746ee34feae	2516	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	2517	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2518	fp->clust = clst; /* Update current cluster */
dannyman939	0:c746ee34feae	2519	}
dannyman939	0:c746ee34feae	2520	#if _FS_TINY
dannyman939	0:c746ee34feae	2521	if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write-back sector cache */
dannyman939	0:c746ee34feae	2522	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2523	#else
dannyman939	0:c746ee34feae	2524	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
dannyman939	0:c746ee34feae	2525	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
dannyman939	0:c746ee34feae	2526	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2527	fp->flag &= ~FA__DIRTY;
dannyman939	0:c746ee34feae	2528	}
dannyman939	0:c746ee34feae	2529	#endif
dannyman939	0:c746ee34feae	2530	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
dannyman939	0:c746ee34feae	2531	if (!sect) ABORT(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	2532	sect += csect;
dannyman939	0:c746ee34feae	2533	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
dannyman939	0:c746ee34feae	2534	if (cc) { /* Write maximum contiguous sectors directly */
dannyman939	0:c746ee34feae	2535	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
dannyman939	0:c746ee34feae	2536	cc = fp->fs->csize - csect;
dannyman939	0:c746ee34feae	2537	if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK)
dannyman939	0:c746ee34feae	2538	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2539	#if _FS_TINY
dannyman939	0:c746ee34feae	2540	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
dannyman939	0:c746ee34feae	2541	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
dannyman939	0:c746ee34feae	2542	fp->fs->wflag = 0;
dannyman939	0:c746ee34feae	2543	}
dannyman939	0:c746ee34feae	2544	#else
dannyman939	0:c746ee34feae	2545	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
dannyman939	0:c746ee34feae	2546	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
dannyman939	0:c746ee34feae	2547	fp->flag &= ~FA__DIRTY;
dannyman939	0:c746ee34feae	2548	}
dannyman939	0:c746ee34feae	2549	#endif
dannyman939	0:c746ee34feae	2550	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
dannyman939	0:c746ee34feae	2551	continue;
dannyman939	0:c746ee34feae	2552	}
dannyman939	0:c746ee34feae	2553	#if _FS_TINY
dannyman939	0:c746ee34feae	2554	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
dannyman939	0:c746ee34feae	2555	if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2556	fp->fs->winsect = sect;
dannyman939	0:c746ee34feae	2557	}
dannyman939	0:c746ee34feae	2558	#else
dannyman939	0:c746ee34feae	2559	if (fp->dsect != sect) { /* Fill sector cache with file data */
dannyman939	0:c746ee34feae	2560	if (fp->fptr < fp->fsize &&
dannyman939	0:c746ee34feae	2561	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
dannyman939	0:c746ee34feae	2562	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2563	}
dannyman939	0:c746ee34feae	2564	#endif
dannyman939	0:c746ee34feae	2565	fp->dsect = sect;
dannyman939	0:c746ee34feae	2566	}
dannyman939	0:c746ee34feae	2567	wcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
dannyman939	0:c746ee34feae	2568	if (wcnt > btw) wcnt = btw;
dannyman939	0:c746ee34feae	2569	#if _FS_TINY
dannyman939	0:c746ee34feae	2570	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
dannyman939	0:c746ee34feae	2571	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2572	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
dannyman939	0:c746ee34feae	2573	fp->fs->wflag = 1;
dannyman939	0:c746ee34feae	2574	#else
dannyman939	0:c746ee34feae	2575	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
dannyman939	0:c746ee34feae	2576	fp->flag \|= FA__DIRTY;
dannyman939	0:c746ee34feae	2577	#endif
dannyman939	0:c746ee34feae	2578	}
dannyman939	0:c746ee34feae	2579
dannyman939	0:c746ee34feae	2580	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
dannyman939	0:c746ee34feae	2581	fp->flag \|= FA__WRITTEN; /* Set file change flag */
dannyman939	0:c746ee34feae	2582
dannyman939	0:c746ee34feae	2583	LEAVE_FF(fp->fs, FR_OK);
dannyman939	0:c746ee34feae	2584	}
dannyman939	0:c746ee34feae	2585
dannyman939	0:c746ee34feae	2586
dannyman939	0:c746ee34feae	2587
dannyman939	0:c746ee34feae	2588
dannyman939	0:c746ee34feae	2589	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2590	/* Synchronize the File Object */
dannyman939	0:c746ee34feae	2591	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2592
dannyman939	0:c746ee34feae	2593	FRESULT f_sync (
dannyman939	0:c746ee34feae	2594	FIL fp / Pointer to the file object */
dannyman939	0:c746ee34feae	2595	)
dannyman939	0:c746ee34feae	2596	{
dannyman939	0:c746ee34feae	2597	FRESULT res;
dannyman939	0:c746ee34feae	2598	DWORD tim;
dannyman939	0:c746ee34feae	2599	BYTE *dir;
dannyman939	0:c746ee34feae	2600
dannyman939	0:c746ee34feae	2601
dannyman939	0:c746ee34feae	2602	res = validate(fp->fs, fp->id); /* Check validity of the object */
dannyman939	0:c746ee34feae	2603	if (res == FR_OK) {
dannyman939	0:c746ee34feae	2604	if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
dannyman939	0:c746ee34feae	2605	#if !_FS_TINY /* Write-back dirty buffer */
dannyman939	0:c746ee34feae	2606	if (fp->flag & FA__DIRTY) {
dannyman939	0:c746ee34feae	2607	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
dannyman939	0:c746ee34feae	2608	LEAVE_FF(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2609	fp->flag &= ~FA__DIRTY;
dannyman939	0:c746ee34feae	2610	}
dannyman939	0:c746ee34feae	2611	#endif
dannyman939	0:c746ee34feae	2612	/* Update the directory entry */
dannyman939	0:c746ee34feae	2613	res = move_window(fp->fs, fp->dir_sect);
dannyman939	0:c746ee34feae	2614	if (res == FR_OK) {
dannyman939	0:c746ee34feae	2615	dir = fp->dir_ptr;
dannyman939	0:c746ee34feae	2616	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
dannyman939	0:c746ee34feae	2617	ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
dannyman939	0:c746ee34feae	2618	ST_CLUST(dir, fp->sclust); /* Update start cluster */
dannyman939	0:c746ee34feae	2619	tim = get_fattime(); /* Update updated time */
dannyman939	0:c746ee34feae	2620	ST_DWORD(dir+DIR_WrtTime, tim);
dannyman939	0:c746ee34feae	2621	fp->flag &= ~FA__WRITTEN;
dannyman939	0:c746ee34feae	2622	fp->fs->wflag = 1;
dannyman939	0:c746ee34feae	2623	res = sync(fp->fs);
dannyman939	0:c746ee34feae	2624	}
dannyman939	0:c746ee34feae	2625	}
dannyman939	0:c746ee34feae	2626	}
dannyman939	0:c746ee34feae	2627
dannyman939	0:c746ee34feae	2628	LEAVE_FF(fp->fs, res);
dannyman939	0:c746ee34feae	2629	}
dannyman939	0:c746ee34feae	2630
dannyman939	0:c746ee34feae	2631	#endif /* !_FS_READONLY */
dannyman939	0:c746ee34feae	2632
dannyman939	0:c746ee34feae	2633
dannyman939	0:c746ee34feae	2634
dannyman939	0:c746ee34feae	2635
dannyman939	0:c746ee34feae	2636	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2637	/* Close File */
dannyman939	0:c746ee34feae	2638	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2639
dannyman939	0:c746ee34feae	2640	FRESULT f_close (
dannyman939	0:c746ee34feae	2641	FIL fp / Pointer to the file object to be closed */
dannyman939	0:c746ee34feae	2642	)
dannyman939	0:c746ee34feae	2643	{
dannyman939	0:c746ee34feae	2644	FRESULT res;
dannyman939	0:c746ee34feae	2645
dannyman939	0:c746ee34feae	2646	#if _FS_READONLY
dannyman939	0:c746ee34feae	2647	FATFS *fs = fp->fs;
dannyman939	0:c746ee34feae	2648	res = validate(fs, fp->id);
dannyman939	0:c746ee34feae	2649	if (res == FR_OK) fp->fs = 0; /* Discard file object */
dannyman939	0:c746ee34feae	2650	LEAVE_FF(fs, res);
dannyman939	0:c746ee34feae	2651
dannyman939	0:c746ee34feae	2652	#else
dannyman939	0:c746ee34feae	2653	res = f_sync(fp); /* Flush cached data */
dannyman939	0:c746ee34feae	2654	#if _FS_SHARE
dannyman939	0:c746ee34feae	2655	if (res == FR_OK) { /* Decrement open counter */
dannyman939	0:c746ee34feae	2656	#if _FS_REENTRANT
dannyman939	0:c746ee34feae	2657	res = validate(fp->fs, fp->id);
dannyman939	0:c746ee34feae	2658	if (res == FR_OK) {
dannyman939	0:c746ee34feae	2659	res = dec_lock(fp->lockid);
dannyman939	0:c746ee34feae	2660	unlock_fs(fp->fs, FR_OK);
dannyman939	0:c746ee34feae	2661	}
dannyman939	0:c746ee34feae	2662	#else
dannyman939	0:c746ee34feae	2663	res = dec_lock(fp->lockid);
dannyman939	0:c746ee34feae	2664	#endif
dannyman939	0:c746ee34feae	2665	}
dannyman939	0:c746ee34feae	2666	#endif
dannyman939	0:c746ee34feae	2667	if (res == FR_OK) fp->fs = 0; /* Discard file object */
dannyman939	0:c746ee34feae	2668	return res;
dannyman939	0:c746ee34feae	2669	#endif
dannyman939	0:c746ee34feae	2670	}
dannyman939	0:c746ee34feae	2671
dannyman939	0:c746ee34feae	2672
dannyman939	0:c746ee34feae	2673
dannyman939	0:c746ee34feae	2674
dannyman939	0:c746ee34feae	2675	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2676	/* Current Drive/Directory Handlings */
dannyman939	0:c746ee34feae	2677	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2678
dannyman939	0:c746ee34feae	2679	#if _FS_RPATH >= 1
dannyman939	0:c746ee34feae	2680
dannyman939	0:c746ee34feae	2681	FRESULT f_chdrive (
dannyman939	0:c746ee34feae	2682	BYTE drv /* Drive number */
dannyman939	0:c746ee34feae	2683	)
dannyman939	0:c746ee34feae	2684	{
dannyman939	0:c746ee34feae	2685	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
dannyman939	0:c746ee34feae	2686
dannyman939	0:c746ee34feae	2687	CurrVol = drv;
dannyman939	0:c746ee34feae	2688
dannyman939	0:c746ee34feae	2689	return FR_OK;
dannyman939	0:c746ee34feae	2690	}
dannyman939	0:c746ee34feae	2691
dannyman939	0:c746ee34feae	2692
dannyman939	0:c746ee34feae	2693
dannyman939	0:c746ee34feae	2694	FRESULT f_chdir (
dannyman939	0:c746ee34feae	2695	const TCHAR path / Pointer to the directory path */
dannyman939	0:c746ee34feae	2696	)
dannyman939	0:c746ee34feae	2697	{
dannyman939	0:c746ee34feae	2698	FRESULT res;
dannyman939	0:c746ee34feae	2699	FATFS_DIR dj;
dannyman939	0:c746ee34feae	2700	DEF_NAMEBUF;
dannyman939	0:c746ee34feae	2701
dannyman939	0:c746ee34feae	2702
dannyman939	0:c746ee34feae	2703	res = chk_mounted(&path, &dj.fs, 0);
dannyman939	0:c746ee34feae	2704	if (res == FR_OK) {
dannyman939	0:c746ee34feae	2705	INIT_BUF(dj);
dannyman939	0:c746ee34feae	2706	res = follow_path(&dj, path); /* Follow the path */
dannyman939	0:c746ee34feae	2707	FREE_BUF();
dannyman939	0:c746ee34feae	2708	if (res == FR_OK) { /* Follow completed */
dannyman939	0:c746ee34feae	2709	if (!dj.dir) {
dannyman939	0:c746ee34feae	2710	dj.fs->cdir = dj.sclust; /* Start directory itself */
dannyman939	0:c746ee34feae	2711	} else {
dannyman939	0:c746ee34feae	2712	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
dannyman939	0:c746ee34feae	2713	dj.fs->cdir = LD_CLUST(dj.dir);
dannyman939	0:c746ee34feae	2714	else
dannyman939	0:c746ee34feae	2715	res = FR_NO_PATH; /* Reached but a file */
dannyman939	0:c746ee34feae	2716	}
dannyman939	0:c746ee34feae	2717	}
dannyman939	0:c746ee34feae	2718	if (res == FR_NO_FILE) res = FR_NO_PATH;
dannyman939	0:c746ee34feae	2719	}
dannyman939	0:c746ee34feae	2720
dannyman939	0:c746ee34feae	2721	LEAVE_FF(dj.fs, res);
dannyman939	0:c746ee34feae	2722	}
dannyman939	0:c746ee34feae	2723
dannyman939	0:c746ee34feae	2724
dannyman939	0:c746ee34feae	2725	#if _FS_RPATH >= 2
dannyman939	0:c746ee34feae	2726	FRESULT f_getcwd (
dannyman939	0:c746ee34feae	2727	TCHAR path, / Pointer to the directory path */
dannyman939	0:c746ee34feae	2728	UINT sz_path /* Size of path */
dannyman939	0:c746ee34feae	2729	)
dannyman939	0:c746ee34feae	2730	{
dannyman939	0:c746ee34feae	2731	FRESULT res;
dannyman939	0:c746ee34feae	2732	FATFS_DIR dj;
dannyman939	0:c746ee34feae	2733	UINT i, n;
dannyman939	0:c746ee34feae	2734	DWORD ccl;
dannyman939	0:c746ee34feae	2735	TCHAR *tp;
dannyman939	0:c746ee34feae	2736	FILINFO fno;
dannyman939	0:c746ee34feae	2737	DEF_NAMEBUF;
dannyman939	0:c746ee34feae	2738
dannyman939	0:c746ee34feae	2739
dannyman939	0:c746ee34feae	2740	*path = 0;
dannyman939	0:c746ee34feae	2741	res = chk_mounted((const TCHAR*)&path, &dj.fs, 0); / Get current volume */
dannyman939	0:c746ee34feae	2742	if (res == FR_OK) {
dannyman939	0:c746ee34feae	2743	INIT_BUF(dj);
dannyman939	0:c746ee34feae	2744	i = sz_path; /* Bottom of buffer (dir stack base) */
dannyman939	0:c746ee34feae	2745	dj.sclust = dj.fs->cdir; /* Start to follow upper dir from current dir */
dannyman939	0:c746ee34feae	2746	while ((ccl = dj.sclust) != 0) { /* Repeat while current dir is a sub-dir */
dannyman939	0:c746ee34feae	2747	res = dir_sdi(&dj, 1); /* Get parent dir */
dannyman939	0:c746ee34feae	2748	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	2749	res = dir_read(&dj);
dannyman939	0:c746ee34feae	2750	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	2751	dj.sclust = LD_CLUST(dj.dir); /* Goto parent dir */
dannyman939	0:c746ee34feae	2752	res = dir_sdi(&dj, 0);
dannyman939	0:c746ee34feae	2753	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	2754	do { /* Find the entry links to the child dir */
dannyman939	0:c746ee34feae	2755	res = dir_read(&dj);
dannyman939	0:c746ee34feae	2756	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	2757	if (ccl == LD_CLUST(dj.dir)) break; /* Found the entry */
dannyman939	0:c746ee34feae	2758	res = dir_next(&dj, 0);
dannyman939	0:c746ee34feae	2759	} while (res == FR_OK);
dannyman939	0:c746ee34feae	2760	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
dannyman939	0:c746ee34feae	2761	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	2762	#if _USE_LFN
dannyman939	0:c746ee34feae	2763	fno.lfname = path;
dannyman939	0:c746ee34feae	2764	fno.lfsize = i;
dannyman939	0:c746ee34feae	2765	#endif
dannyman939	0:c746ee34feae	2766	get_fileinfo(&dj, &fno); /* Get the dir name and push it to the buffer */
dannyman939	0:c746ee34feae	2767	tp = fno.fname;
dannyman939	0:c746ee34feae	2768	if (_USE_LFN && *path) tp = path;
dannyman939	0:c746ee34feae	2769	for (n = 0; tp[n]; n++) ;
dannyman939	0:c746ee34feae	2770	if (i < n + 3) {
dannyman939	0:c746ee34feae	2771	res = FR_NOT_ENOUGH_CORE; break;
dannyman939	0:c746ee34feae	2772	}
dannyman939	0:c746ee34feae	2773	while (n) path[--i] = tp[--n];
dannyman939	0:c746ee34feae	2774	path[--i] = '/';
dannyman939	0:c746ee34feae	2775	}
dannyman939	0:c746ee34feae	2776	tp = path;
dannyman939	0:c746ee34feae	2777	if (res == FR_OK) {
dannyman939	0:c746ee34feae	2778	tp++ = '0' + CurrVol; / Put drive number */
dannyman939	0:c746ee34feae	2779	*tp++ = ':';
dannyman939	0:c746ee34feae	2780	if (i == sz_path) { /* Root-dir */
dannyman939	0:c746ee34feae	2781	*tp++ = '/';
dannyman939	0:c746ee34feae	2782	} else { /* Sub-dir */
dannyman939	0:c746ee34feae	2783	do /* Add stacked path str */
dannyman939	0:c746ee34feae	2784	*tp++ = path[i++];
dannyman939	0:c746ee34feae	2785	while (i < sz_path);
dannyman939	0:c746ee34feae	2786	}
dannyman939	0:c746ee34feae	2787	}
dannyman939	0:c746ee34feae	2788	*tp = 0;
dannyman939	0:c746ee34feae	2789	FREE_BUF();
dannyman939	0:c746ee34feae	2790	}
dannyman939	0:c746ee34feae	2791
dannyman939	0:c746ee34feae	2792	LEAVE_FF(dj.fs, res);
dannyman939	0:c746ee34feae	2793	}
dannyman939	0:c746ee34feae	2794	#endif /* _FS_RPATH >= 2 */
dannyman939	0:c746ee34feae	2795	#endif /* _FS_RPATH >= 1 */
dannyman939	0:c746ee34feae	2796
dannyman939	0:c746ee34feae	2797
dannyman939	0:c746ee34feae	2798
dannyman939	0:c746ee34feae	2799	#if _FS_MINIMIZE <= 2
dannyman939	0:c746ee34feae	2800	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2801	/* Seek File R/W Pointer */
dannyman939	0:c746ee34feae	2802	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2803
dannyman939	0:c746ee34feae	2804	FRESULT f_lseek (
dannyman939	0:c746ee34feae	2805	FIL fp, / Pointer to the file object */
dannyman939	0:c746ee34feae	2806	DWORD ofs /* File pointer from top of file */
dannyman939	0:c746ee34feae	2807	)
dannyman939	0:c746ee34feae	2808	{
dannyman939	0:c746ee34feae	2809	FRESULT res;
dannyman939	0:c746ee34feae	2810
dannyman939	0:c746ee34feae	2811
dannyman939	0:c746ee34feae	2812	res = validate(fp->fs, fp->id); /* Check validity of the object */
dannyman939	0:c746ee34feae	2813	if (res != FR_OK) LEAVE_FF(fp->fs, res);
dannyman939	0:c746ee34feae	2814	if (fp->flag & FA__ERROR) /* Check abort flag */
dannyman939	0:c746ee34feae	2815	LEAVE_FF(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	2816
dannyman939	0:c746ee34feae	2817	#if _USE_FASTSEEK
dannyman939	0:c746ee34feae	2818	if (fp->cltbl) { /* Fast seek */
dannyman939	0:c746ee34feae	2819	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
dannyman939	0:c746ee34feae	2820
dannyman939	0:c746ee34feae	2821	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
dannyman939	0:c746ee34feae	2822	tbl = fp->cltbl;
dannyman939	0:c746ee34feae	2823	tlen = tbl++; ulen = 2; / Given table size and required table size */
dannyman939	0:c746ee34feae	2824	cl = fp->sclust; /* Top of the chain */
dannyman939	0:c746ee34feae	2825	if (cl) {
dannyman939	0:c746ee34feae	2826	do {
dannyman939	0:c746ee34feae	2827	/* Get a fragment */
dannyman939	0:c746ee34feae	2828	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
dannyman939	0:c746ee34feae	2829	do {
dannyman939	0:c746ee34feae	2830	pcl = cl; ncl++;
dannyman939	0:c746ee34feae	2831	cl = get_fat(fp->fs, cl);
dannyman939	0:c746ee34feae	2832	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	2833	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2834	} while (cl == pcl + 1);
dannyman939	0:c746ee34feae	2835	if (ulen <= tlen) { /* Store the length and top of the fragment */
dannyman939	0:c746ee34feae	2836	tbl++ = ncl; tbl++ = tcl;
dannyman939	0:c746ee34feae	2837	}
dannyman939	0:c746ee34feae	2838	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
dannyman939	0:c746ee34feae	2839	}
dannyman939	0:c746ee34feae	2840	fp->cltbl = ulen; / Number of items used */
dannyman939	0:c746ee34feae	2841	if (ulen <= tlen)
dannyman939	0:c746ee34feae	2842	tbl = 0; / Terminate table */
dannyman939	0:c746ee34feae	2843	else
dannyman939	0:c746ee34feae	2844	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
dannyman939	0:c746ee34feae	2845
dannyman939	0:c746ee34feae	2846	} else { /* Fast seek */
dannyman939	0:c746ee34feae	2847	if (ofs > fp->fsize) /* Clip offset at the file size */
dannyman939	0:c746ee34feae	2848	ofs = fp->fsize;
dannyman939	0:c746ee34feae	2849	fp->fptr = ofs; /* Set file pointer */
dannyman939	0:c746ee34feae	2850	if (ofs) {
dannyman939	0:c746ee34feae	2851	fp->clust = clmt_clust(fp, ofs - 1);
dannyman939	0:c746ee34feae	2852	dsc = clust2sect(fp->fs, fp->clust);
dannyman939	0:c746ee34feae	2853	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	2854	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
dannyman939	0:c746ee34feae	2855	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
dannyman939	0:c746ee34feae	2856	#if !_FS_TINY
dannyman939	0:c746ee34feae	2857	#if !_FS_READONLY
dannyman939	0:c746ee34feae	2858	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
dannyman939	0:c746ee34feae	2859	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
dannyman939	0:c746ee34feae	2860	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2861	fp->flag &= ~FA__DIRTY;
dannyman939	0:c746ee34feae	2862	}
dannyman939	0:c746ee34feae	2863	#endif
dannyman939	0:c746ee34feae	2864	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
dannyman939	0:c746ee34feae	2865	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2866	#endif
dannyman939	0:c746ee34feae	2867	fp->dsect = dsc;
dannyman939	0:c746ee34feae	2868	}
dannyman939	0:c746ee34feae	2869	}
dannyman939	0:c746ee34feae	2870	}
dannyman939	0:c746ee34feae	2871	} else
dannyman939	0:c746ee34feae	2872	#endif
dannyman939	0:c746ee34feae	2873
dannyman939	0:c746ee34feae	2874	/* Normal Seek */
dannyman939	0:c746ee34feae	2875	{
dannyman939	0:c746ee34feae	2876	DWORD clst, bcs, nsect, ifptr;
dannyman939	0:c746ee34feae	2877
dannyman939	0:c746ee34feae	2878	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
dannyman939	0:c746ee34feae	2879	#if !_FS_READONLY
dannyman939	0:c746ee34feae	2880	&& !(fp->flag & FA_WRITE)
dannyman939	0:c746ee34feae	2881	#endif
dannyman939	0:c746ee34feae	2882	) ofs = fp->fsize;
dannyman939	0:c746ee34feae	2883
dannyman939	0:c746ee34feae	2884	ifptr = fp->fptr;
dannyman939	0:c746ee34feae	2885	fp->fptr = nsect = 0;
dannyman939	0:c746ee34feae	2886	if (ofs) {
dannyman939	0:c746ee34feae	2887	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
dannyman939	0:c746ee34feae	2888	if (ifptr > 0 &&
dannyman939	0:c746ee34feae	2889	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
dannyman939	0:c746ee34feae	2890	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
dannyman939	0:c746ee34feae	2891	ofs -= fp->fptr;
dannyman939	0:c746ee34feae	2892	clst = fp->clust;
dannyman939	0:c746ee34feae	2893	} else { /* When seek to back cluster, */
dannyman939	0:c746ee34feae	2894	clst = fp->sclust; /* start from the first cluster */
dannyman939	0:c746ee34feae	2895	#if !_FS_READONLY
dannyman939	0:c746ee34feae	2896	if (clst == 0) { /* If no cluster chain, create a new chain */
dannyman939	0:c746ee34feae	2897	clst = create_chain(fp->fs, 0);
dannyman939	0:c746ee34feae	2898	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	2899	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2900	fp->sclust = clst;
dannyman939	0:c746ee34feae	2901	}
dannyman939	0:c746ee34feae	2902	#endif
dannyman939	0:c746ee34feae	2903	fp->clust = clst;
dannyman939	0:c746ee34feae	2904	}
dannyman939	0:c746ee34feae	2905	if (clst != 0) {
dannyman939	0:c746ee34feae	2906	while (ofs > bcs) { /* Cluster following loop */
dannyman939	0:c746ee34feae	2907	#if !_FS_READONLY
dannyman939	0:c746ee34feae	2908	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
dannyman939	0:c746ee34feae	2909	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
dannyman939	0:c746ee34feae	2910	if (clst == 0) { /* When disk gets full, clip file size */
dannyman939	0:c746ee34feae	2911	ofs = bcs; break;
dannyman939	0:c746ee34feae	2912	}
dannyman939	0:c746ee34feae	2913	} else
dannyman939	0:c746ee34feae	2914	#endif
dannyman939	0:c746ee34feae	2915	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
dannyman939	0:c746ee34feae	2916	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2917	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	2918	fp->clust = clst;
dannyman939	0:c746ee34feae	2919	fp->fptr += bcs;
dannyman939	0:c746ee34feae	2920	ofs -= bcs;
dannyman939	0:c746ee34feae	2921	}
dannyman939	0:c746ee34feae	2922	fp->fptr += ofs;
dannyman939	0:c746ee34feae	2923	if (ofs % SS(fp->fs)) {
dannyman939	0:c746ee34feae	2924	nsect = clust2sect(fp->fs, clst); /* Current sector */
dannyman939	0:c746ee34feae	2925	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	2926	nsect += ofs / SS(fp->fs);
dannyman939	0:c746ee34feae	2927	}
dannyman939	0:c746ee34feae	2928	}
dannyman939	0:c746ee34feae	2929	}
dannyman939	0:c746ee34feae	2930	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
dannyman939	0:c746ee34feae	2931	#if !_FS_TINY
dannyman939	0:c746ee34feae	2932	#if !_FS_READONLY
dannyman939	0:c746ee34feae	2933	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
dannyman939	0:c746ee34feae	2934	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
dannyman939	0:c746ee34feae	2935	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2936	fp->flag &= ~FA__DIRTY;
dannyman939	0:c746ee34feae	2937	}
dannyman939	0:c746ee34feae	2938	#endif
dannyman939	0:c746ee34feae	2939	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
dannyman939	0:c746ee34feae	2940	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	2941	#endif
dannyman939	0:c746ee34feae	2942	fp->dsect = nsect;
dannyman939	0:c746ee34feae	2943	}
dannyman939	0:c746ee34feae	2944	#if !_FS_READONLY
dannyman939	0:c746ee34feae	2945	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
dannyman939	0:c746ee34feae	2946	fp->fsize = fp->fptr;
dannyman939	0:c746ee34feae	2947	fp->flag \|= FA__WRITTEN;
dannyman939	0:c746ee34feae	2948	}
dannyman939	0:c746ee34feae	2949	#endif
dannyman939	0:c746ee34feae	2950	}
dannyman939	0:c746ee34feae	2951
dannyman939	0:c746ee34feae	2952	LEAVE_FF(fp->fs, res);
dannyman939	0:c746ee34feae	2953	}
dannyman939	0:c746ee34feae	2954
dannyman939	0:c746ee34feae	2955
dannyman939	0:c746ee34feae	2956
dannyman939	0:c746ee34feae	2957	#if _FS_MINIMIZE <= 1
dannyman939	0:c746ee34feae	2958	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2959	/* Create a Directroy Object */
dannyman939	0:c746ee34feae	2960	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2961
dannyman939	0:c746ee34feae	2962	FRESULT f_opendir (
dannyman939	0:c746ee34feae	2963	FATFS_DIR dj, / Pointer to directory object to create */
dannyman939	0:c746ee34feae	2964	const TCHAR path / Pointer to the directory path */
dannyman939	0:c746ee34feae	2965	)
dannyman939	0:c746ee34feae	2966	{
dannyman939	0:c746ee34feae	2967	FRESULT res;
dannyman939	0:c746ee34feae	2968	DEF_NAMEBUF;
dannyman939	0:c746ee34feae	2969
dannyman939	0:c746ee34feae	2970
dannyman939	0:c746ee34feae	2971	res = chk_mounted(&path, &dj->fs, 0);
dannyman939	0:c746ee34feae	2972	if (res == FR_OK) {
dannyman939	0:c746ee34feae	2973	INIT_BUF(*dj);
dannyman939	0:c746ee34feae	2974	res = follow_path(dj, path); /* Follow the path to the directory */
dannyman939	0:c746ee34feae	2975	FREE_BUF();
dannyman939	0:c746ee34feae	2976	if (res == FR_OK) { /* Follow completed */
dannyman939	0:c746ee34feae	2977	if (dj->dir) { /* It is not the root dir */
dannyman939	0:c746ee34feae	2978	if (dj->dir[DIR_Attr] & AM_DIR) { /* The object is a directory */
dannyman939	0:c746ee34feae	2979	dj->sclust = LD_CLUST(dj->dir);
dannyman939	0:c746ee34feae	2980	} else { /* The object is not a directory */
dannyman939	0:c746ee34feae	2981	res = FR_NO_PATH;
dannyman939	0:c746ee34feae	2982	}
dannyman939	0:c746ee34feae	2983	}
dannyman939	0:c746ee34feae	2984	if (res == FR_OK) {
dannyman939	0:c746ee34feae	2985	dj->id = dj->fs->id;
dannyman939	0:c746ee34feae	2986	res = dir_sdi(dj, 0); /* Rewind dir */
dannyman939	0:c746ee34feae	2987	}
dannyman939	0:c746ee34feae	2988	}
dannyman939	0:c746ee34feae	2989	if (res == FR_NO_FILE) res = FR_NO_PATH;
dannyman939	0:c746ee34feae	2990	}
dannyman939	0:c746ee34feae	2991
dannyman939	0:c746ee34feae	2992	LEAVE_FF(dj->fs, res);
dannyman939	0:c746ee34feae	2993	}
dannyman939	0:c746ee34feae	2994
dannyman939	0:c746ee34feae	2995
dannyman939	0:c746ee34feae	2996
dannyman939	0:c746ee34feae	2997
dannyman939	0:c746ee34feae	2998	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	2999	/* Read Directory Entry in Sequense */
dannyman939	0:c746ee34feae	3000	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3001
dannyman939	0:c746ee34feae	3002	FRESULT f_readdir (
dannyman939	0:c746ee34feae	3003	FATFS_DIR dj, / Pointer to the open directory object */
dannyman939	0:c746ee34feae	3004	FILINFO fno / Pointer to file information to return */
dannyman939	0:c746ee34feae	3005	)
dannyman939	0:c746ee34feae	3006	{
dannyman939	0:c746ee34feae	3007	FRESULT res;
dannyman939	0:c746ee34feae	3008	DEF_NAMEBUF;
dannyman939	0:c746ee34feae	3009
dannyman939	0:c746ee34feae	3010
dannyman939	0:c746ee34feae	3011	res = validate(dj->fs, dj->id); /* Check validity of the object */
dannyman939	0:c746ee34feae	3012	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3013	if (!fno) {
dannyman939	0:c746ee34feae	3014	res = dir_sdi(dj, 0); /* Rewind the directory object */
dannyman939	0:c746ee34feae	3015	} else {
dannyman939	0:c746ee34feae	3016	INIT_BUF(*dj);
dannyman939	0:c746ee34feae	3017	res = dir_read(dj); /* Read an directory item */
dannyman939	0:c746ee34feae	3018	if (res == FR_NO_FILE) { /* Reached end of dir */
dannyman939	0:c746ee34feae	3019	dj->sect = 0;
dannyman939	0:c746ee34feae	3020	res = FR_OK;
dannyman939	0:c746ee34feae	3021	}
dannyman939	0:c746ee34feae	3022	if (res == FR_OK) { /* A valid entry is found */
dannyman939	0:c746ee34feae	3023	get_fileinfo(dj, fno); /* Get the object information */
dannyman939	0:c746ee34feae	3024	res = dir_next(dj, 0); /* Increment index for next */
dannyman939	0:c746ee34feae	3025	if (res == FR_NO_FILE) {
dannyman939	0:c746ee34feae	3026	dj->sect = 0;
dannyman939	0:c746ee34feae	3027	res = FR_OK;
dannyman939	0:c746ee34feae	3028	}
dannyman939	0:c746ee34feae	3029	}
dannyman939	0:c746ee34feae	3030	FREE_BUF();
dannyman939	0:c746ee34feae	3031	}
dannyman939	0:c746ee34feae	3032	}
dannyman939	0:c746ee34feae	3033
dannyman939	0:c746ee34feae	3034	LEAVE_FF(dj->fs, res);
dannyman939	0:c746ee34feae	3035	}
dannyman939	0:c746ee34feae	3036
dannyman939	0:c746ee34feae	3037
dannyman939	0:c746ee34feae	3038
dannyman939	0:c746ee34feae	3039	#if _FS_MINIMIZE == 0
dannyman939	0:c746ee34feae	3040	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3041	/* Get File Status */
dannyman939	0:c746ee34feae	3042	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3043
dannyman939	0:c746ee34feae	3044	FRESULT f_stat (
dannyman939	0:c746ee34feae	3045	const TCHAR path, / Pointer to the file path */
dannyman939	0:c746ee34feae	3046	FILINFO fno / Pointer to file information to return */
dannyman939	0:c746ee34feae	3047	)
dannyman939	0:c746ee34feae	3048	{
dannyman939	0:c746ee34feae	3049	FRESULT res;
dannyman939	0:c746ee34feae	3050	FATFS_DIR dj;
dannyman939	0:c746ee34feae	3051	DEF_NAMEBUF;
dannyman939	0:c746ee34feae	3052
dannyman939	0:c746ee34feae	3053
dannyman939	0:c746ee34feae	3054	res = chk_mounted(&path, &dj.fs, 0);
dannyman939	0:c746ee34feae	3055	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3056	INIT_BUF(dj);
dannyman939	0:c746ee34feae	3057	res = follow_path(&dj, path); /* Follow the file path */
dannyman939	0:c746ee34feae	3058	if (res == FR_OK) { /* Follow completed */
dannyman939	0:c746ee34feae	3059	if (dj.dir) /* Found an object */
dannyman939	0:c746ee34feae	3060	get_fileinfo(&dj, fno);
dannyman939	0:c746ee34feae	3061	else /* It is root dir */
dannyman939	0:c746ee34feae	3062	res = FR_INVALID_NAME;
dannyman939	0:c746ee34feae	3063	}
dannyman939	0:c746ee34feae	3064	FREE_BUF();
dannyman939	0:c746ee34feae	3065	}
dannyman939	0:c746ee34feae	3066
dannyman939	0:c746ee34feae	3067	LEAVE_FF(dj.fs, res);
dannyman939	0:c746ee34feae	3068	}
dannyman939	0:c746ee34feae	3069
dannyman939	0:c746ee34feae	3070
dannyman939	0:c746ee34feae	3071
dannyman939	0:c746ee34feae	3072	#if !_FS_READONLY
dannyman939	0:c746ee34feae	3073	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3074	/* Get Number of Free Clusters */
dannyman939	0:c746ee34feae	3075	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3076
dannyman939	0:c746ee34feae	3077	FRESULT f_getfree (
dannyman939	0:c746ee34feae	3078	const TCHAR path, / Pointer to the logical drive number (root dir) */
dannyman939	0:c746ee34feae	3079	DWORD nclst, / Pointer to the variable to return number of free clusters */
dannyman939	0:c746ee34feae	3080	FATFS *fatfs / Pointer to pointer to corresponding file system object to return */
dannyman939	0:c746ee34feae	3081	)
dannyman939	0:c746ee34feae	3082	{
dannyman939	0:c746ee34feae	3083	FRESULT res;
dannyman939	0:c746ee34feae	3084	DWORD n, clst, sect, stat;
dannyman939	0:c746ee34feae	3085	UINT i;
dannyman939	0:c746ee34feae	3086	BYTE fat, *p;
dannyman939	0:c746ee34feae	3087
dannyman939	0:c746ee34feae	3088
dannyman939	0:c746ee34feae	3089	/* Get drive number */
dannyman939	0:c746ee34feae	3090	res = chk_mounted(&path, fatfs, 0);
dannyman939	0:c746ee34feae	3091	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3092	/* If free_clust is valid, return it without full cluster scan */
dannyman939	0:c746ee34feae	3093	if ((fatfs)->free_clust <= (fatfs)->n_fatent - 2) {
dannyman939	0:c746ee34feae	3094	nclst = (fatfs)->free_clust;
dannyman939	0:c746ee34feae	3095	} else {
dannyman939	0:c746ee34feae	3096	/* Get number of free clusters */
dannyman939	0:c746ee34feae	3097	fat = (*fatfs)->fs_type;
dannyman939	0:c746ee34feae	3098	n = 0;
dannyman939	0:c746ee34feae	3099	if (fat == FS_FAT12) {
dannyman939	0:c746ee34feae	3100	clst = 2;
dannyman939	0:c746ee34feae	3101	do {
dannyman939	0:c746ee34feae	3102	stat = get_fat(*fatfs, clst);
dannyman939	0:c746ee34feae	3103	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
dannyman939	0:c746ee34feae	3104	if (stat == 1) { res = FR_INT_ERR; break; }
dannyman939	0:c746ee34feae	3105	if (stat == 0) n++;
dannyman939	0:c746ee34feae	3106	} while (++clst < (*fatfs)->n_fatent);
dannyman939	0:c746ee34feae	3107	} else {
dannyman939	0:c746ee34feae	3108	clst = (*fatfs)->n_fatent;
dannyman939	0:c746ee34feae	3109	sect = (*fatfs)->fatbase;
dannyman939	0:c746ee34feae	3110	i = 0; p = 0;
dannyman939	0:c746ee34feae	3111	do {
dannyman939	0:c746ee34feae	3112	if (!i) {
dannyman939	0:c746ee34feae	3113	res = move_window(*fatfs, sect++);
dannyman939	0:c746ee34feae	3114	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	3115	p = (*fatfs)->win;
dannyman939	0:c746ee34feae	3116	i = SS(*fatfs);
dannyman939	0:c746ee34feae	3117	}
dannyman939	0:c746ee34feae	3118	if (fat == FS_FAT16) {
dannyman939	0:c746ee34feae	3119	if (LD_WORD(p) == 0) n++;
dannyman939	0:c746ee34feae	3120	p += 2; i -= 2;
dannyman939	0:c746ee34feae	3121	} else {
dannyman939	0:c746ee34feae	3122	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
dannyman939	0:c746ee34feae	3123	p += 4; i -= 4;
dannyman939	0:c746ee34feae	3124	}
dannyman939	0:c746ee34feae	3125	} while (--clst);
dannyman939	0:c746ee34feae	3126	}
dannyman939	0:c746ee34feae	3127	(*fatfs)->free_clust = n;
dannyman939	0:c746ee34feae	3128	if (fat == FS_FAT32) (*fatfs)->fsi_flag = 1;
dannyman939	0:c746ee34feae	3129	*nclst = n;
dannyman939	0:c746ee34feae	3130	}
dannyman939	0:c746ee34feae	3131	}
dannyman939	0:c746ee34feae	3132	LEAVE_FF(*fatfs, res);
dannyman939	0:c746ee34feae	3133	}
dannyman939	0:c746ee34feae	3134
dannyman939	0:c746ee34feae	3135
dannyman939	0:c746ee34feae	3136
dannyman939	0:c746ee34feae	3137
dannyman939	0:c746ee34feae	3138	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3139	/* Truncate File */
dannyman939	0:c746ee34feae	3140	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3141
dannyman939	0:c746ee34feae	3142	FRESULT f_truncate (
dannyman939	0:c746ee34feae	3143	FIL fp / Pointer to the file object */
dannyman939	0:c746ee34feae	3144	)
dannyman939	0:c746ee34feae	3145	{
dannyman939	0:c746ee34feae	3146	FRESULT res;
dannyman939	0:c746ee34feae	3147	DWORD ncl;
dannyman939	0:c746ee34feae	3148
dannyman939	0:c746ee34feae	3149
dannyman939	0:c746ee34feae	3150	res = validate(fp->fs, fp->id); /* Check validity of the object */
dannyman939	0:c746ee34feae	3151	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3152	if (fp->flag & FA__ERROR) { /* Check abort flag */
dannyman939	0:c746ee34feae	3153	res = FR_INT_ERR;
dannyman939	0:c746ee34feae	3154	} else {
dannyman939	0:c746ee34feae	3155	if (!(fp->flag & FA_WRITE)) /* Check access mode */
dannyman939	0:c746ee34feae	3156	res = FR_DENIED;
dannyman939	0:c746ee34feae	3157	}
dannyman939	0:c746ee34feae	3158	}
dannyman939	0:c746ee34feae	3159	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3160	if (fp->fsize > fp->fptr) {
dannyman939	0:c746ee34feae	3161	fp->fsize = fp->fptr; /* Set file size to current R/W point */
dannyman939	0:c746ee34feae	3162	fp->flag \|= FA__WRITTEN;
dannyman939	0:c746ee34feae	3163	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
dannyman939	0:c746ee34feae	3164	res = remove_chain(fp->fs, fp->sclust);
dannyman939	0:c746ee34feae	3165	fp->sclust = 0;
dannyman939	0:c746ee34feae	3166	} else { /* When truncate a part of the file, remove remaining clusters */
dannyman939	0:c746ee34feae	3167	ncl = get_fat(fp->fs, fp->clust);
dannyman939	0:c746ee34feae	3168	res = FR_OK;
dannyman939	0:c746ee34feae	3169	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
dannyman939	0:c746ee34feae	3170	if (ncl == 1) res = FR_INT_ERR;
dannyman939	0:c746ee34feae	3171	if (res == FR_OK && ncl < fp->fs->n_fatent) {
dannyman939	0:c746ee34feae	3172	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
dannyman939	0:c746ee34feae	3173	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
dannyman939	0:c746ee34feae	3174	}
dannyman939	0:c746ee34feae	3175	}
dannyman939	0:c746ee34feae	3176	}
dannyman939	0:c746ee34feae	3177	if (res != FR_OK) fp->flag \|= FA__ERROR;
dannyman939	0:c746ee34feae	3178	}
dannyman939	0:c746ee34feae	3179
dannyman939	0:c746ee34feae	3180	LEAVE_FF(fp->fs, res);
dannyman939	0:c746ee34feae	3181	}
dannyman939	0:c746ee34feae	3182
dannyman939	0:c746ee34feae	3183
dannyman939	0:c746ee34feae	3184
dannyman939	0:c746ee34feae	3185
dannyman939	0:c746ee34feae	3186	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3187	/* Delete a File or Directory */
dannyman939	0:c746ee34feae	3188	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3189
dannyman939	0:c746ee34feae	3190	FRESULT f_unlink (
dannyman939	0:c746ee34feae	3191	const TCHAR path / Pointer to the file or directory path */
dannyman939	0:c746ee34feae	3192	)
dannyman939	0:c746ee34feae	3193	{
dannyman939	0:c746ee34feae	3194	FRESULT res;
dannyman939	0:c746ee34feae	3195	FATFS_DIR dj, sdj;
dannyman939	0:c746ee34feae	3196	BYTE *dir;
dannyman939	0:c746ee34feae	3197	DWORD dclst;
dannyman939	0:c746ee34feae	3198	DEF_NAMEBUF;
dannyman939	0:c746ee34feae	3199
dannyman939	0:c746ee34feae	3200
dannyman939	0:c746ee34feae	3201	res = chk_mounted(&path, &dj.fs, 1);
dannyman939	0:c746ee34feae	3202	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3203	INIT_BUF(dj);
dannyman939	0:c746ee34feae	3204	res = follow_path(&dj, path); /* Follow the file path */
dannyman939	0:c746ee34feae	3205	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
dannyman939	0:c746ee34feae	3206	res = FR_INVALID_NAME; /* Cannot remove dot entry */
dannyman939	0:c746ee34feae	3207	#if _FS_SHARE
dannyman939	0:c746ee34feae	3208	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open file */
dannyman939	0:c746ee34feae	3209	#endif
dannyman939	0:c746ee34feae	3210	if (res == FR_OK) { /* The object is accessible */
dannyman939	0:c746ee34feae	3211	dir = dj.dir;
dannyman939	0:c746ee34feae	3212	if (!dir) {
dannyman939	0:c746ee34feae	3213	res = FR_INVALID_NAME; /* Cannot remove the start directory */
dannyman939	0:c746ee34feae	3214	} else {
dannyman939	0:c746ee34feae	3215	if (dir[DIR_Attr] & AM_RDO)
dannyman939	0:c746ee34feae	3216	res = FR_DENIED; /* Cannot remove R/O object */
dannyman939	0:c746ee34feae	3217	}
dannyman939	0:c746ee34feae	3218	dclst = LD_CLUST(dir);
dannyman939	0:c746ee34feae	3219	if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-dir? */
dannyman939	0:c746ee34feae	3220	if (dclst < 2) {
dannyman939	0:c746ee34feae	3221	res = FR_INT_ERR;
dannyman939	0:c746ee34feae	3222	} else {
dannyman939	0:c746ee34feae	3223	mem_cpy(&sdj, &dj, sizeof(FATFS_DIR)); /* Check if the sub-dir is empty or not */
dannyman939	0:c746ee34feae	3224	sdj.sclust = dclst;
dannyman939	0:c746ee34feae	3225	res = dir_sdi(&sdj, 2); /* Exclude dot entries */
dannyman939	0:c746ee34feae	3226	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3227	res = dir_read(&sdj);
dannyman939	0:c746ee34feae	3228	if (res == FR_OK /* Not empty dir */
dannyman939	0:c746ee34feae	3229	#if _FS_RPATH
dannyman939	0:c746ee34feae	3230	\|\| dclst == sdj.fs->cdir /* Current dir */
dannyman939	0:c746ee34feae	3231	#endif
dannyman939	0:c746ee34feae	3232	) res = FR_DENIED;
dannyman939	0:c746ee34feae	3233	if (res == FR_NO_FILE) res = FR_OK; /* Empty */
dannyman939	0:c746ee34feae	3234	}
dannyman939	0:c746ee34feae	3235	}
dannyman939	0:c746ee34feae	3236	}
dannyman939	0:c746ee34feae	3237	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3238	res = dir_remove(&dj); /* Remove the directory entry */
dannyman939	0:c746ee34feae	3239	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3240	if (dclst) /* Remove the cluster chain if exist */
dannyman939	0:c746ee34feae	3241	res = remove_chain(dj.fs, dclst);
dannyman939	0:c746ee34feae	3242	if (res == FR_OK) res = sync(dj.fs);
dannyman939	0:c746ee34feae	3243	}
dannyman939	0:c746ee34feae	3244	}
dannyman939	0:c746ee34feae	3245	}
dannyman939	0:c746ee34feae	3246	FREE_BUF();
dannyman939	0:c746ee34feae	3247	}
dannyman939	0:c746ee34feae	3248	LEAVE_FF(dj.fs, res);
dannyman939	0:c746ee34feae	3249	}
dannyman939	0:c746ee34feae	3250
dannyman939	0:c746ee34feae	3251
dannyman939	0:c746ee34feae	3252
dannyman939	0:c746ee34feae	3253
dannyman939	0:c746ee34feae	3254	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3255	/* Create a Directory */
dannyman939	0:c746ee34feae	3256	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3257
dannyman939	0:c746ee34feae	3258	FRESULT f_mkdir (
dannyman939	0:c746ee34feae	3259	const TCHAR path / Pointer to the directory path */
dannyman939	0:c746ee34feae	3260	)
dannyman939	0:c746ee34feae	3261	{
dannyman939	0:c746ee34feae	3262	FRESULT res;
dannyman939	0:c746ee34feae	3263	FATFS_DIR dj;
dannyman939	0:c746ee34feae	3264	BYTE *dir, n;
dannyman939	0:c746ee34feae	3265	DWORD dsc, dcl, pcl, tim = get_fattime();
dannyman939	0:c746ee34feae	3266	DEF_NAMEBUF;
dannyman939	0:c746ee34feae	3267
dannyman939	0:c746ee34feae	3268
dannyman939	0:c746ee34feae	3269	res = chk_mounted(&path, &dj.fs, 1);
dannyman939	0:c746ee34feae	3270	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3271	INIT_BUF(dj);
dannyman939	0:c746ee34feae	3272	res = follow_path(&dj, path); /* Follow the file path */
dannyman939	0:c746ee34feae	3273	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
dannyman939	0:c746ee34feae	3274	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
dannyman939	0:c746ee34feae	3275	res = FR_INVALID_NAME;
dannyman939	0:c746ee34feae	3276	if (res == FR_NO_FILE) { /* Can create a new directory */
dannyman939	0:c746ee34feae	3277	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
dannyman939	0:c746ee34feae	3278	res = FR_OK;
dannyman939	0:c746ee34feae	3279	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
dannyman939	0:c746ee34feae	3280	if (dcl == 1) res = FR_INT_ERR;
dannyman939	0:c746ee34feae	3281	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
dannyman939	0:c746ee34feae	3282	if (res == FR_OK) /* Flush FAT */
dannyman939	0:c746ee34feae	3283	res = move_window(dj.fs, 0);
dannyman939	0:c746ee34feae	3284	if (res == FR_OK) { /* Initialize the new directory table */
dannyman939	0:c746ee34feae	3285	dsc = clust2sect(dj.fs, dcl);
dannyman939	0:c746ee34feae	3286	dir = dj.fs->win;
dannyman939	0:c746ee34feae	3287	mem_set(dir, 0, SS(dj.fs));
dannyman939	0:c746ee34feae	3288	mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */
dannyman939	0:c746ee34feae	3289	dir[DIR_Name] = '.';
dannyman939	0:c746ee34feae	3290	dir[DIR_Attr] = AM_DIR;
dannyman939	0:c746ee34feae	3291	ST_DWORD(dir+DIR_WrtTime, tim);
dannyman939	0:c746ee34feae	3292	ST_CLUST(dir, dcl);
dannyman939	0:c746ee34feae	3293	mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
dannyman939	0:c746ee34feae	3294	dir[33] = '.'; pcl = dj.sclust;
dannyman939	0:c746ee34feae	3295	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
dannyman939	0:c746ee34feae	3296	pcl = 0;
dannyman939	0:c746ee34feae	3297	ST_CLUST(dir+SZ_DIR, pcl);
dannyman939	0:c746ee34feae	3298	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
dannyman939	0:c746ee34feae	3299	dj.fs->winsect = dsc++;
dannyman939	0:c746ee34feae	3300	dj.fs->wflag = 1;
dannyman939	0:c746ee34feae	3301	res = move_window(dj.fs, 0);
dannyman939	0:c746ee34feae	3302	if (res != FR_OK) break;
dannyman939	0:c746ee34feae	3303	mem_set(dir, 0, SS(dj.fs));
dannyman939	0:c746ee34feae	3304	}
dannyman939	0:c746ee34feae	3305	}
dannyman939	0:c746ee34feae	3306	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
dannyman939	0:c746ee34feae	3307	if (res != FR_OK) {
dannyman939	0:c746ee34feae	3308	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
dannyman939	0:c746ee34feae	3309	} else {
dannyman939	0:c746ee34feae	3310	dir = dj.dir;
dannyman939	0:c746ee34feae	3311	dir[DIR_Attr] = AM_DIR; /* Attribute */
dannyman939	0:c746ee34feae	3312	ST_DWORD(dir+DIR_WrtTime, tim); /* Created time */
dannyman939	0:c746ee34feae	3313	ST_CLUST(dir, dcl); /* Table start cluster */
dannyman939	0:c746ee34feae	3314	dj.fs->wflag = 1;
dannyman939	0:c746ee34feae	3315	res = sync(dj.fs);
dannyman939	0:c746ee34feae	3316	}
dannyman939	0:c746ee34feae	3317	}
dannyman939	0:c746ee34feae	3318	FREE_BUF();
dannyman939	0:c746ee34feae	3319	}
dannyman939	0:c746ee34feae	3320
dannyman939	0:c746ee34feae	3321	LEAVE_FF(dj.fs, res);
dannyman939	0:c746ee34feae	3322	}
dannyman939	0:c746ee34feae	3323
dannyman939	0:c746ee34feae	3324
dannyman939	0:c746ee34feae	3325
dannyman939	0:c746ee34feae	3326
dannyman939	0:c746ee34feae	3327	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3328	/* Change Attribute */
dannyman939	0:c746ee34feae	3329	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3330
dannyman939	0:c746ee34feae	3331	FRESULT f_chmod (
dannyman939	0:c746ee34feae	3332	const TCHAR path, / Pointer to the file path */
dannyman939	0:c746ee34feae	3333	BYTE value, /* Attribute bits */
dannyman939	0:c746ee34feae	3334	BYTE mask /* Attribute mask to change */
dannyman939	0:c746ee34feae	3335	)
dannyman939	0:c746ee34feae	3336	{
dannyman939	0:c746ee34feae	3337	FRESULT res;
dannyman939	0:c746ee34feae	3338	FATFS_DIR dj;
dannyman939	0:c746ee34feae	3339	BYTE *dir;
dannyman939	0:c746ee34feae	3340	DEF_NAMEBUF;
dannyman939	0:c746ee34feae	3341
dannyman939	0:c746ee34feae	3342
dannyman939	0:c746ee34feae	3343	res = chk_mounted(&path, &dj.fs, 1);
dannyman939	0:c746ee34feae	3344	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3345	INIT_BUF(dj);
dannyman939	0:c746ee34feae	3346	res = follow_path(&dj, path); /* Follow the file path */
dannyman939	0:c746ee34feae	3347	FREE_BUF();
dannyman939	0:c746ee34feae	3348	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
dannyman939	0:c746ee34feae	3349	res = FR_INVALID_NAME;
dannyman939	0:c746ee34feae	3350	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3351	dir = dj.dir;
dannyman939	0:c746ee34feae	3352	if (!dir) { /* Is it a root directory? */
dannyman939	0:c746ee34feae	3353	res = FR_INVALID_NAME;
dannyman939	0:c746ee34feae	3354	} else { /* File or sub directory */
dannyman939	0:c746ee34feae	3355	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
dannyman939	0:c746ee34feae	3356	dir[DIR_Attr] = (value & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
dannyman939	0:c746ee34feae	3357	dj.fs->wflag = 1;
dannyman939	0:c746ee34feae	3358	res = sync(dj.fs);
dannyman939	0:c746ee34feae	3359	}
dannyman939	0:c746ee34feae	3360	}
dannyman939	0:c746ee34feae	3361	}
dannyman939	0:c746ee34feae	3362
dannyman939	0:c746ee34feae	3363	LEAVE_FF(dj.fs, res);
dannyman939	0:c746ee34feae	3364	}
dannyman939	0:c746ee34feae	3365
dannyman939	0:c746ee34feae	3366
dannyman939	0:c746ee34feae	3367
dannyman939	0:c746ee34feae	3368
dannyman939	0:c746ee34feae	3369	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3370	/* Change Timestamp */
dannyman939	0:c746ee34feae	3371	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3372
dannyman939	0:c746ee34feae	3373	FRESULT f_utime (
dannyman939	0:c746ee34feae	3374	const TCHAR path, / Pointer to the file/directory name */
dannyman939	0:c746ee34feae	3375	const FILINFO fno / Pointer to the time stamp to be set */
dannyman939	0:c746ee34feae	3376	)
dannyman939	0:c746ee34feae	3377	{
dannyman939	0:c746ee34feae	3378	FRESULT res;
dannyman939	0:c746ee34feae	3379	FATFS_DIR dj;
dannyman939	0:c746ee34feae	3380	BYTE *dir;
dannyman939	0:c746ee34feae	3381	DEF_NAMEBUF;
dannyman939	0:c746ee34feae	3382
dannyman939	0:c746ee34feae	3383
dannyman939	0:c746ee34feae	3384	res = chk_mounted(&path, &dj.fs, 1);
dannyman939	0:c746ee34feae	3385	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3386	INIT_BUF(dj);
dannyman939	0:c746ee34feae	3387	res = follow_path(&dj, path); /* Follow the file path */
dannyman939	0:c746ee34feae	3388	FREE_BUF();
dannyman939	0:c746ee34feae	3389	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
dannyman939	0:c746ee34feae	3390	res = FR_INVALID_NAME;
dannyman939	0:c746ee34feae	3391	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3392	dir = dj.dir;
dannyman939	0:c746ee34feae	3393	if (!dir) { /* Root directory */
dannyman939	0:c746ee34feae	3394	res = FR_INVALID_NAME;
dannyman939	0:c746ee34feae	3395	} else { /* File or sub-directory */
dannyman939	0:c746ee34feae	3396	ST_WORD(dir+DIR_WrtTime, fno->ftime);
dannyman939	0:c746ee34feae	3397	ST_WORD(dir+DIR_WrtDate, fno->fdate);
dannyman939	0:c746ee34feae	3398	dj.fs->wflag = 1;
dannyman939	0:c746ee34feae	3399	res = sync(dj.fs);
dannyman939	0:c746ee34feae	3400	}
dannyman939	0:c746ee34feae	3401	}
dannyman939	0:c746ee34feae	3402	}
dannyman939	0:c746ee34feae	3403
dannyman939	0:c746ee34feae	3404	LEAVE_FF(dj.fs, res);
dannyman939	0:c746ee34feae	3405	}
dannyman939	0:c746ee34feae	3406
dannyman939	0:c746ee34feae	3407
dannyman939	0:c746ee34feae	3408
dannyman939	0:c746ee34feae	3409
dannyman939	0:c746ee34feae	3410	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3411	/* Rename File/Directory */
dannyman939	0:c746ee34feae	3412	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3413
dannyman939	0:c746ee34feae	3414	FRESULT f_rename (
dannyman939	0:c746ee34feae	3415	const TCHAR path_old, / Pointer to the old name */
dannyman939	0:c746ee34feae	3416	const TCHAR path_new / Pointer to the new name */
dannyman939	0:c746ee34feae	3417	)
dannyman939	0:c746ee34feae	3418	{
dannyman939	0:c746ee34feae	3419	FRESULT res;
dannyman939	0:c746ee34feae	3420	FATFS_DIR djo, djn;
dannyman939	0:c746ee34feae	3421	BYTE buf[21], *dir;
dannyman939	0:c746ee34feae	3422	DWORD dw;
dannyman939	0:c746ee34feae	3423	DEF_NAMEBUF;
dannyman939	0:c746ee34feae	3424
dannyman939	0:c746ee34feae	3425
dannyman939	0:c746ee34feae	3426	res = chk_mounted(&path_old, &djo.fs, 1);
dannyman939	0:c746ee34feae	3427	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3428	djn.fs = djo.fs;
dannyman939	0:c746ee34feae	3429	INIT_BUF(djo);
dannyman939	0:c746ee34feae	3430	res = follow_path(&djo, path_old); /* Check old object */
dannyman939	0:c746ee34feae	3431	if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
dannyman939	0:c746ee34feae	3432	res = FR_INVALID_NAME;
dannyman939	0:c746ee34feae	3433	#if _FS_SHARE
dannyman939	0:c746ee34feae	3434	if (res == FR_OK) res = chk_lock(&djo, 2);
dannyman939	0:c746ee34feae	3435	#endif
dannyman939	0:c746ee34feae	3436	if (res == FR_OK) { /* Old object is found */
dannyman939	0:c746ee34feae	3437	if (!djo.dir) { /* Is root dir? */
dannyman939	0:c746ee34feae	3438	res = FR_NO_FILE;
dannyman939	0:c746ee34feae	3439	} else {
dannyman939	0:c746ee34feae	3440	mem_cpy(buf, djo.dir+DIR_Attr, 21); /* Save the object information except for name */
dannyman939	0:c746ee34feae	3441	mem_cpy(&djn, &djo, sizeof(FATFS_DIR)); /* Check new object */
dannyman939	0:c746ee34feae	3442	res = follow_path(&djn, path_new);
dannyman939	0:c746ee34feae	3443	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
dannyman939	0:c746ee34feae	3444	if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
dannyman939	0:c746ee34feae	3445	/* Start critical section that any interruption or error can cause cross-link */
dannyman939	0:c746ee34feae	3446	res = dir_register(&djn); /* Register the new entry */
dannyman939	0:c746ee34feae	3447	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3448	dir = djn.dir; /* Copy object information except for name */
dannyman939	0:c746ee34feae	3449	mem_cpy(dir+13, buf+2, 19);
dannyman939	0:c746ee34feae	3450	dir[DIR_Attr] = buf[0] \| AM_ARC;
dannyman939	0:c746ee34feae	3451	djo.fs->wflag = 1;
dannyman939	0:c746ee34feae	3452	if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) { /* Update .. entry in the directory if needed */
dannyman939	0:c746ee34feae	3453	dw = clust2sect(djn.fs, LD_CLUST(dir));
dannyman939	0:c746ee34feae	3454	if (!dw) {
dannyman939	0:c746ee34feae	3455	res = FR_INT_ERR;
dannyman939	0:c746ee34feae	3456	} else {
dannyman939	0:c746ee34feae	3457	res = move_window(djn.fs, dw);
dannyman939	0:c746ee34feae	3458	dir = djn.fs->win+SZ_DIR; /* .. entry */
dannyman939	0:c746ee34feae	3459	if (res == FR_OK && dir[1] == '.') {
dannyman939	0:c746ee34feae	3460	dw = (djn.fs->fs_type == FS_FAT32 && djn.sclust == djn.fs->dirbase) ? 0 : djn.sclust;
dannyman939	0:c746ee34feae	3461	ST_CLUST(dir, dw);
dannyman939	0:c746ee34feae	3462	djn.fs->wflag = 1;
dannyman939	0:c746ee34feae	3463	}
dannyman939	0:c746ee34feae	3464	}
dannyman939	0:c746ee34feae	3465	}
dannyman939	0:c746ee34feae	3466	if (res == FR_OK) {
dannyman939	0:c746ee34feae	3467	res = dir_remove(&djo); /* Remove old entry */
dannyman939	0:c746ee34feae	3468	if (res == FR_OK)
dannyman939	0:c746ee34feae	3469	res = sync(djo.fs);
dannyman939	0:c746ee34feae	3470	}
dannyman939	0:c746ee34feae	3471	}
dannyman939	0:c746ee34feae	3472	/* End critical section */
dannyman939	0:c746ee34feae	3473	}
dannyman939	0:c746ee34feae	3474	}
dannyman939	0:c746ee34feae	3475	}
dannyman939	0:c746ee34feae	3476	FREE_BUF();
dannyman939	0:c746ee34feae	3477	}
dannyman939	0:c746ee34feae	3478	LEAVE_FF(djo.fs, res);
dannyman939	0:c746ee34feae	3479	}
dannyman939	0:c746ee34feae	3480
dannyman939	0:c746ee34feae	3481	#endif /* !_FS_READONLY */
dannyman939	0:c746ee34feae	3482	#endif /* _FS_MINIMIZE == 0 */
dannyman939	0:c746ee34feae	3483	#endif /* _FS_MINIMIZE <= 1 */
dannyman939	0:c746ee34feae	3484	#endif /* _FS_MINIMIZE <= 2 */
dannyman939	0:c746ee34feae	3485
dannyman939	0:c746ee34feae	3486
dannyman939	0:c746ee34feae	3487
dannyman939	0:c746ee34feae	3488	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3489	/* Forward data to the stream directly (available on only tiny cfg) */
dannyman939	0:c746ee34feae	3490	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3491	#if _USE_FORWARD && _FS_TINY
dannyman939	0:c746ee34feae	3492
dannyman939	0:c746ee34feae	3493	FRESULT f_forward (
dannyman939	0:c746ee34feae	3494	FIL fp, / Pointer to the file object */
dannyman939	0:c746ee34feae	3495	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
dannyman939	0:c746ee34feae	3496	UINT btr, /* Number of bytes to forward */
dannyman939	0:c746ee34feae	3497	UINT bf / Pointer to number of bytes forwarded */
dannyman939	0:c746ee34feae	3498	)
dannyman939	0:c746ee34feae	3499	{
dannyman939	0:c746ee34feae	3500	FRESULT res;
dannyman939	0:c746ee34feae	3501	DWORD remain, clst, sect;
dannyman939	0:c746ee34feae	3502	UINT rcnt;
dannyman939	0:c746ee34feae	3503	BYTE csect;
dannyman939	0:c746ee34feae	3504
dannyman939	0:c746ee34feae	3505
dannyman939	0:c746ee34feae	3506	bf = 0; / Initialize byte counter */
dannyman939	0:c746ee34feae	3507
dannyman939	0:c746ee34feae	3508	res = validate(fp->fs, fp->id); /* Check validity of the object */
dannyman939	0:c746ee34feae	3509	if (res != FR_OK) LEAVE_FF(fp->fs, res);
dannyman939	0:c746ee34feae	3510	if (fp->flag & FA__ERROR) /* Check error flag */
dannyman939	0:c746ee34feae	3511	LEAVE_FF(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	3512	if (!(fp->flag & FA_READ)) /* Check access mode */
dannyman939	0:c746ee34feae	3513	LEAVE_FF(fp->fs, FR_DENIED);
dannyman939	0:c746ee34feae	3514
dannyman939	0:c746ee34feae	3515	remain = fp->fsize - fp->fptr;
dannyman939	0:c746ee34feae	3516	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
dannyman939	0:c746ee34feae	3517
dannyman939	0:c746ee34feae	3518	for ( ; btr && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
dannyman939	0:c746ee34feae	3519	fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
dannyman939	0:c746ee34feae	3520	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
dannyman939	0:c746ee34feae	3521	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
dannyman939	0:c746ee34feae	3522	if (!csect) { /* On the cluster boundary? */
dannyman939	0:c746ee34feae	3523	clst = (fp->fptr == 0) ? /* On the top of the file? */
dannyman939	0:c746ee34feae	3524	fp->sclust : get_fat(fp->fs, fp->clust);
dannyman939	0:c746ee34feae	3525	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	3526	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	3527	fp->clust = clst; /* Update current cluster */
dannyman939	0:c746ee34feae	3528	}
dannyman939	0:c746ee34feae	3529	}
dannyman939	0:c746ee34feae	3530	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
dannyman939	0:c746ee34feae	3531	if (!sect) ABORT(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	3532	sect += csect;
dannyman939	0:c746ee34feae	3533	if (move_window(fp->fs, sect)) /* Move sector window */
dannyman939	0:c746ee34feae	3534	ABORT(fp->fs, FR_DISK_ERR);
dannyman939	0:c746ee34feae	3535	fp->dsect = sect;
dannyman939	0:c746ee34feae	3536	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
dannyman939	0:c746ee34feae	3537	if (rcnt > btr) rcnt = btr;
dannyman939	0:c746ee34feae	3538	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
dannyman939	0:c746ee34feae	3539	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
dannyman939	0:c746ee34feae	3540	}
dannyman939	0:c746ee34feae	3541
dannyman939	0:c746ee34feae	3542	LEAVE_FF(fp->fs, FR_OK);
dannyman939	0:c746ee34feae	3543	}
dannyman939	0:c746ee34feae	3544	#endif /* _USE_FORWARD */
dannyman939	0:c746ee34feae	3545
dannyman939	0:c746ee34feae	3546
dannyman939	0:c746ee34feae	3547
dannyman939	0:c746ee34feae	3548	#if _USE_MKFS && !_FS_READONLY
dannyman939	0:c746ee34feae	3549	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3550	/* Create File System on the Drive */
dannyman939	0:c746ee34feae	3551	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3552	#define N_ROOTDIR 512 /* Number of root dir entries for FAT12/16 */
dannyman939	0:c746ee34feae	3553	#define N_FATS 1 /* Number of FAT copies (1 or 2) */
dannyman939	0:c746ee34feae	3554
dannyman939	0:c746ee34feae	3555
dannyman939	0:c746ee34feae	3556	FRESULT f_mkfs (
dannyman939	0:c746ee34feae	3557	BYTE drv, /* Logical drive number */
dannyman939	0:c746ee34feae	3558	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
dannyman939	0:c746ee34feae	3559	UINT au /* Allocation unit size [bytes] */
dannyman939	0:c746ee34feae	3560	)
dannyman939	0:c746ee34feae	3561	{
dannyman939	0:c746ee34feae	3562	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
dannyman939	0:c746ee34feae	3563	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
dannyman939	0:c746ee34feae	3564	BYTE fmt, md, sys, *tbl, pdrv, part;
dannyman939	0:c746ee34feae	3565	DWORD n_clst, vs, n, wsect;
dannyman939	0:c746ee34feae	3566	UINT i;
dannyman939	0:c746ee34feae	3567	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
dannyman939	0:c746ee34feae	3568	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
dannyman939	0:c746ee34feae	3569	FATFS *fs;
dannyman939	0:c746ee34feae	3570	DSTATUS stat;
dannyman939	0:c746ee34feae	3571
dannyman939	0:c746ee34feae	3572
dannyman939	0:c746ee34feae	3573	/* Check mounted drive and clear work area */
dannyman939	0:c746ee34feae	3574	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
dannyman939	0:c746ee34feae	3575	if (sfd > 1) return FR_INVALID_PARAMETER;
dannyman939	0:c746ee34feae	3576	if (au & (au - 1)) return FR_INVALID_PARAMETER;
dannyman939	0:c746ee34feae	3577	fs = FatFs[drv];
dannyman939	0:c746ee34feae	3578	if (!fs) return FR_NOT_ENABLED;
dannyman939	0:c746ee34feae	3579	fs->fs_type = 0;
dannyman939	0:c746ee34feae	3580	pdrv = LD2PD(drv); /* Physical drive */
dannyman939	0:c746ee34feae	3581	part = LD2PT(drv); /* Partition (0:auto detect, 1-4:get from partition table)*/
dannyman939	0:c746ee34feae	3582
dannyman939	0:c746ee34feae	3583	/* Get disk statics */
dannyman939	0:c746ee34feae	3584	stat = disk_initialize(pdrv);
dannyman939	0:c746ee34feae	3585	if (stat & STA_NOINIT) return FR_NOT_READY;
dannyman939	0:c746ee34feae	3586	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
dannyman939	0:c746ee34feae	3587	#if _MAX_SS != 512 /* Get disk sector size */
dannyman939	0:c746ee34feae	3588	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS)
dannyman939	0:c746ee34feae	3589	return FR_DISK_ERR;
dannyman939	0:c746ee34feae	3590	#endif
dannyman939	0:c746ee34feae	3591	if (_MULTI_PARTITION && part) {
dannyman939	0:c746ee34feae	3592	/* Get partition information from partition table in the MBR */
dannyman939	0:c746ee34feae	3593	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
dannyman939	0:c746ee34feae	3594	if (LD_WORD(fs->win+BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
dannyman939	0:c746ee34feae	3595	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
dannyman939	0:c746ee34feae	3596	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
dannyman939	0:c746ee34feae	3597	b_vol = LD_DWORD(tbl+8); /* Volume start sector */
dannyman939	0:c746ee34feae	3598	n_vol = LD_DWORD(tbl+12); /* Volume size */
dannyman939	0:c746ee34feae	3599	} else {
dannyman939	0:c746ee34feae	3600	/* Create a partition in this function */
dannyman939	0:c746ee34feae	3601	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
dannyman939	0:c746ee34feae	3602	return FR_DISK_ERR;
dannyman939	0:c746ee34feae	3603	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
dannyman939	0:c746ee34feae	3604	n_vol -= b_vol; /* Volume size */
dannyman939	0:c746ee34feae	3605	}
dannyman939	0:c746ee34feae	3606
dannyman939	0:c746ee34feae	3607	if (!au) { /* AU auto selection */
dannyman939	0:c746ee34feae	3608	vs = n_vol / (2000 / (SS(fs) / 512));
dannyman939	0:c746ee34feae	3609	for (i = 0; vs < vst[i]; i++) ;
dannyman939	0:c746ee34feae	3610	au = cst[i];
dannyman939	0:c746ee34feae	3611	}
dannyman939	0:c746ee34feae	3612	au /= SS(fs); /* Number of sectors per cluster */
dannyman939	0:c746ee34feae	3613	if (au == 0) au = 1;
dannyman939	0:c746ee34feae	3614	if (au > 128) au = 128;
dannyman939	0:c746ee34feae	3615
dannyman939	0:c746ee34feae	3616	/* Pre-compute number of clusters and FAT syb-type */
dannyman939	0:c746ee34feae	3617	n_clst = n_vol / au;
dannyman939	0:c746ee34feae	3618	fmt = FS_FAT12;
dannyman939	0:c746ee34feae	3619	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
dannyman939	0:c746ee34feae	3620	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
dannyman939	0:c746ee34feae	3621
dannyman939	0:c746ee34feae	3622	/* Determine offset and size of FAT structure */
dannyman939	0:c746ee34feae	3623	if (fmt == FS_FAT32) {
dannyman939	0:c746ee34feae	3624	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
dannyman939	0:c746ee34feae	3625	n_rsv = 32;
dannyman939	0:c746ee34feae	3626	n_dir = 0;
dannyman939	0:c746ee34feae	3627	} else {
dannyman939	0:c746ee34feae	3628	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
dannyman939	0:c746ee34feae	3629	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
dannyman939	0:c746ee34feae	3630	n_rsv = 1;
dannyman939	0:c746ee34feae	3631	n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
dannyman939	0:c746ee34feae	3632	}
dannyman939	0:c746ee34feae	3633	b_fat = b_vol + n_rsv; /* FAT area start sector */
dannyman939	0:c746ee34feae	3634	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
dannyman939	0:c746ee34feae	3635	b_data = b_dir + n_dir; /* Data area start sector */
dannyman939	0:c746ee34feae	3636	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
dannyman939	0:c746ee34feae	3637
dannyman939	0:c746ee34feae	3638	/* Align data start sector to erase block boundary (for flash memory media) */
dannyman939	0:c746ee34feae	3639	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
dannyman939	0:c746ee34feae	3640	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
dannyman939	0:c746ee34feae	3641	n = (n - b_data) / N_FATS;
dannyman939	0:c746ee34feae	3642	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
dannyman939	0:c746ee34feae	3643	n_rsv += n;
dannyman939	0:c746ee34feae	3644	b_fat += n;
dannyman939	0:c746ee34feae	3645	} else { /* FAT12/16: Expand FAT size */
dannyman939	0:c746ee34feae	3646	n_fat += n;
dannyman939	0:c746ee34feae	3647	}
dannyman939	0:c746ee34feae	3648
dannyman939	0:c746ee34feae	3649	/* Determine number of clusters and final check of validity of the FAT sub-type */
dannyman939	0:c746ee34feae	3650	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
dannyman939	0:c746ee34feae	3651	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
dannyman939	0:c746ee34feae	3652	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
dannyman939	0:c746ee34feae	3653	return FR_MKFS_ABORTED;
dannyman939	0:c746ee34feae	3654
dannyman939	0:c746ee34feae	3655	switch (fmt) { /* Determine system ID for partition table */
dannyman939	0:c746ee34feae	3656	case FS_FAT12: sys = 0x01; break;
dannyman939	0:c746ee34feae	3657	case FS_FAT16: sys = (n_vol < 0x10000) ? 0x04 : 0x06; break;
dannyman939	0:c746ee34feae	3658	default: sys = 0x0C;
dannyman939	0:c746ee34feae	3659	}
dannyman939	0:c746ee34feae	3660
dannyman939	0:c746ee34feae	3661	if (_MULTI_PARTITION && part) {
dannyman939	0:c746ee34feae	3662	/* Update system ID in the partition table */
dannyman939	0:c746ee34feae	3663	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
dannyman939	0:c746ee34feae	3664	tbl[4] = sys;
dannyman939	0:c746ee34feae	3665	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
dannyman939	0:c746ee34feae	3666	md = 0xF8;
dannyman939	0:c746ee34feae	3667	} else {
dannyman939	0:c746ee34feae	3668	if (sfd) { /* No patition table (SFD) */
dannyman939	0:c746ee34feae	3669	md = 0xF0;
dannyman939	0:c746ee34feae	3670	} else { /* Create partition table (FDISK) */
dannyman939	0:c746ee34feae	3671	mem_set(fs->win, 0, SS(fs));
dannyman939	0:c746ee34feae	3672	tbl = fs->win+MBR_Table; /* Create partiton table for single partition in the drive */
dannyman939	0:c746ee34feae	3673	tbl[1] = 1; /* Partition start head */
dannyman939	0:c746ee34feae	3674	tbl[2] = 1; /* Partition start sector */
dannyman939	0:c746ee34feae	3675	tbl[3] = 0; /* Partition start cylinder */
dannyman939	0:c746ee34feae	3676	tbl[4] = sys; /* System type */
dannyman939	0:c746ee34feae	3677	tbl[5] = 254; /* Partition end head */
dannyman939	0:c746ee34feae	3678	n = (b_vol + n_vol) / 63 / 255;
dannyman939	0:c746ee34feae	3679	tbl[6] = (BYTE)((n >> 2) \| 63); /* Partiiton end sector */
dannyman939	0:c746ee34feae	3680	tbl[7] = (BYTE)n; /* End cylinder */
dannyman939	0:c746ee34feae	3681	ST_DWORD(tbl+8, 63); /* Partition start in LBA */
dannyman939	0:c746ee34feae	3682	ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
dannyman939	0:c746ee34feae	3683	ST_WORD(fs->win+BS_55AA, 0xAA55); /* MBR signature */
dannyman939	0:c746ee34feae	3684	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR sector */
dannyman939	0:c746ee34feae	3685	return FR_DISK_ERR;
dannyman939	0:c746ee34feae	3686	md = 0xF8;
dannyman939	0:c746ee34feae	3687	}
dannyman939	0:c746ee34feae	3688	}
dannyman939	0:c746ee34feae	3689
dannyman939	0:c746ee34feae	3690	/* Create BPB in the VBR */
dannyman939	0:c746ee34feae	3691	tbl = fs->win; /* Clear sector */
dannyman939	0:c746ee34feae	3692	mem_set(tbl, 0, SS(fs));
dannyman939	0:c746ee34feae	3693	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
dannyman939	0:c746ee34feae	3694	i = SS(fs); /* Sector size */
dannyman939	0:c746ee34feae	3695	ST_WORD(tbl+BPB_BytsPerSec, i);
dannyman939	0:c746ee34feae	3696	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
dannyman939	0:c746ee34feae	3697	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
dannyman939	0:c746ee34feae	3698	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
dannyman939	0:c746ee34feae	3699	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of rootdir entries */
dannyman939	0:c746ee34feae	3700	ST_WORD(tbl+BPB_RootEntCnt, i);
dannyman939	0:c746ee34feae	3701	if (n_vol < 0x10000) { /* Number of total sectors */
dannyman939	0:c746ee34feae	3702	ST_WORD(tbl+BPB_TotSec16, n_vol);
dannyman939	0:c746ee34feae	3703	} else {
dannyman939	0:c746ee34feae	3704	ST_DWORD(tbl+BPB_TotSec32, n_vol);
dannyman939	0:c746ee34feae	3705	}
dannyman939	0:c746ee34feae	3706	tbl[BPB_Media] = md; /* Media descriptor */
dannyman939	0:c746ee34feae	3707	ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
dannyman939	0:c746ee34feae	3708	ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
dannyman939	0:c746ee34feae	3709	ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
dannyman939	0:c746ee34feae	3710	n = get_fattime(); /* Use current time as VSN */
dannyman939	0:c746ee34feae	3711	if (fmt == FS_FAT32) {
dannyman939	0:c746ee34feae	3712	ST_DWORD(tbl+BS_VolID32, n); /* VSN */
dannyman939	0:c746ee34feae	3713	ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
dannyman939	0:c746ee34feae	3714	ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
dannyman939	0:c746ee34feae	3715	ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (VBR+1) */
dannyman939	0:c746ee34feae	3716	ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
dannyman939	0:c746ee34feae	3717	tbl[BS_DrvNum32] = 0x80; /* Drive number */
dannyman939	0:c746ee34feae	3718	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
dannyman939	0:c746ee34feae	3719	mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
dannyman939	0:c746ee34feae	3720	} else {
dannyman939	0:c746ee34feae	3721	ST_DWORD(tbl+BS_VolID, n); /* VSN */
dannyman939	0:c746ee34feae	3722	ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
dannyman939	0:c746ee34feae	3723	tbl[BS_DrvNum] = 0x80; /* Drive number */
dannyman939	0:c746ee34feae	3724	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
dannyman939	0:c746ee34feae	3725	mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
dannyman939	0:c746ee34feae	3726	}
dannyman939	0:c746ee34feae	3727	ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
dannyman939	0:c746ee34feae	3728	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
dannyman939	0:c746ee34feae	3729	return FR_DISK_ERR;
dannyman939	0:c746ee34feae	3730	if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR+6) */
dannyman939	0:c746ee34feae	3731	disk_write(pdrv, tbl, b_vol + 6, 1);
dannyman939	0:c746ee34feae	3732
dannyman939	0:c746ee34feae	3733	/* Initialize FAT area */
dannyman939	0:c746ee34feae	3734	wsect = b_fat;
dannyman939	0:c746ee34feae	3735	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
dannyman939	0:c746ee34feae	3736	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
dannyman939	0:c746ee34feae	3737	n = md; /* Media descriptor byte */
dannyman939	0:c746ee34feae	3738	if (fmt != FS_FAT32) {
dannyman939	0:c746ee34feae	3739	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
dannyman939	0:c746ee34feae	3740	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
dannyman939	0:c746ee34feae	3741	} else {
dannyman939	0:c746ee34feae	3742	n \|= 0xFFFFFF00;
dannyman939	0:c746ee34feae	3743	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
dannyman939	0:c746ee34feae	3744	ST_DWORD(tbl+4, 0xFFFFFFFF);
dannyman939	0:c746ee34feae	3745	ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
dannyman939	0:c746ee34feae	3746	}
dannyman939	0:c746ee34feae	3747	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
dannyman939	0:c746ee34feae	3748	return FR_DISK_ERR;
dannyman939	0:c746ee34feae	3749	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
dannyman939	0:c746ee34feae	3750	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
dannyman939	0:c746ee34feae	3751	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
dannyman939	0:c746ee34feae	3752	return FR_DISK_ERR;
dannyman939	0:c746ee34feae	3753	}
dannyman939	0:c746ee34feae	3754	}
dannyman939	0:c746ee34feae	3755
dannyman939	0:c746ee34feae	3756	/* Initialize root directory */
dannyman939	0:c746ee34feae	3757	i = (fmt == FS_FAT32) ? au : n_dir;
dannyman939	0:c746ee34feae	3758	do {
dannyman939	0:c746ee34feae	3759	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
dannyman939	0:c746ee34feae	3760	return FR_DISK_ERR;
dannyman939	0:c746ee34feae	3761	} while (--i);
dannyman939	0:c746ee34feae	3762
dannyman939	0:c746ee34feae	3763	#if _USE_ERASE /* Erase data area if needed */
dannyman939	0:c746ee34feae	3764	{
dannyman939	0:c746ee34feae	3765	DWORD eb[2];
dannyman939	0:c746ee34feae	3766
dannyman939	0:c746ee34feae	3767	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
dannyman939	0:c746ee34feae	3768	disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
dannyman939	0:c746ee34feae	3769	}
dannyman939	0:c746ee34feae	3770	#endif
dannyman939	0:c746ee34feae	3771
dannyman939	0:c746ee34feae	3772	/* Create FSInfo if needed */
dannyman939	0:c746ee34feae	3773	if (fmt == FS_FAT32) {
dannyman939	0:c746ee34feae	3774	ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
dannyman939	0:c746ee34feae	3775	ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
dannyman939	0:c746ee34feae	3776	ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
dannyman939	0:c746ee34feae	3777	ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
dannyman939	0:c746ee34feae	3778	ST_WORD(tbl+BS_55AA, 0xAA55);
dannyman939	0:c746ee34feae	3779	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
dannyman939	0:c746ee34feae	3780	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
dannyman939	0:c746ee34feae	3781	}
dannyman939	0:c746ee34feae	3782
dannyman939	0:c746ee34feae	3783	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
dannyman939	0:c746ee34feae	3784	}
dannyman939	0:c746ee34feae	3785
dannyman939	0:c746ee34feae	3786
dannyman939	0:c746ee34feae	3787	#if _MULTI_PARTITION == 2
dannyman939	0:c746ee34feae	3788	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3789	/* Divide Physical Drive */
dannyman939	0:c746ee34feae	3790	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3791
dannyman939	0:c746ee34feae	3792	FRESULT f_fdisk (
dannyman939	0:c746ee34feae	3793	BYTE pdrv, /* Physical drive number */
dannyman939	0:c746ee34feae	3794	const DWORD szt[], /* Pointer to the size table for each partitions */
dannyman939	0:c746ee34feae	3795	void* work /* Pointer to the working buffer */
dannyman939	0:c746ee34feae	3796	)
dannyman939	0:c746ee34feae	3797	{
dannyman939	0:c746ee34feae	3798	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
dannyman939	0:c746ee34feae	3799	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
dannyman939	0:c746ee34feae	3800	DSTATUS stat;
dannyman939	0:c746ee34feae	3801	DWORD sz_disk, sz_part, s_part;
dannyman939	0:c746ee34feae	3802
dannyman939	0:c746ee34feae	3803
dannyman939	0:c746ee34feae	3804	stat = disk_initialize(pdrv);
dannyman939	0:c746ee34feae	3805	if (stat & STA_NOINIT) return FR_NOT_READY;
dannyman939	0:c746ee34feae	3806	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
dannyman939	0:c746ee34feae	3807	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
dannyman939	0:c746ee34feae	3808
dannyman939	0:c746ee34feae	3809	/* Determine CHS in the table regardless of the drive geometry */
dannyman939	0:c746ee34feae	3810	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
dannyman939	0:c746ee34feae	3811	if (n == 256) n--;
dannyman939	0:c746ee34feae	3812	e_hd = n - 1;
dannyman939	0:c746ee34feae	3813	sz_cyl = 63 * n;
dannyman939	0:c746ee34feae	3814	tot_cyl = sz_disk / sz_cyl;
dannyman939	0:c746ee34feae	3815
dannyman939	0:c746ee34feae	3816	/* Create partition table */
dannyman939	0:c746ee34feae	3817	mem_set(buf, 0, _MAX_SS);
dannyman939	0:c746ee34feae	3818	p = buf + MBR_Table; b_cyl = 0;
dannyman939	0:c746ee34feae	3819	for (i = 0; i < 4; i++, p += SZ_PTE) {
dannyman939	0:c746ee34feae	3820	p_cyl = (szt[i] <= 100) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
dannyman939	0:c746ee34feae	3821	if (!p_cyl) continue;
dannyman939	0:c746ee34feae	3822	s_part = (DWORD)sz_cyl * b_cyl;
dannyman939	0:c746ee34feae	3823	sz_part = (DWORD)sz_cyl * p_cyl;
dannyman939	0:c746ee34feae	3824	if (i == 0) { /* Exclude first track of cylinder 0 */
dannyman939	0:c746ee34feae	3825	s_hd = 1;
dannyman939	0:c746ee34feae	3826	s_part += 63; sz_part -= 63;
dannyman939	0:c746ee34feae	3827	} else {
dannyman939	0:c746ee34feae	3828	s_hd = 0;
dannyman939	0:c746ee34feae	3829	}
dannyman939	0:c746ee34feae	3830	e_cyl = b_cyl + p_cyl - 1;
dannyman939	0:c746ee34feae	3831	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
dannyman939	0:c746ee34feae	3832
dannyman939	0:c746ee34feae	3833	/* Set partition table */
dannyman939	0:c746ee34feae	3834	p[1] = s_hd; /* Start head */
dannyman939	0:c746ee34feae	3835	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
dannyman939	0:c746ee34feae	3836	p[3] = (BYTE)b_cyl; /* Start cylinder */
dannyman939	0:c746ee34feae	3837	p[4] = 0x06; /* System type (temporary setting) */
dannyman939	0:c746ee34feae	3838	p[5] = e_hd; /* End head */
dannyman939	0:c746ee34feae	3839	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
dannyman939	0:c746ee34feae	3840	p[7] = (BYTE)e_cyl; /* End cylinder */
dannyman939	0:c746ee34feae	3841	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
dannyman939	0:c746ee34feae	3842	ST_DWORD(p + 12, sz_part); /* Partition size */
dannyman939	0:c746ee34feae	3843
dannyman939	0:c746ee34feae	3844	/* Next partition */
dannyman939	0:c746ee34feae	3845	b_cyl += p_cyl;
dannyman939	0:c746ee34feae	3846	}
dannyman939	0:c746ee34feae	3847	ST_WORD(p, 0xAA55);
dannyman939	0:c746ee34feae	3848
dannyman939	0:c746ee34feae	3849	/* Write it to the MBR */
dannyman939	0:c746ee34feae	3850	return (disk_write(pdrv, buf, 0, 1) \|\| disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
dannyman939	0:c746ee34feae	3851	}
dannyman939	0:c746ee34feae	3852
dannyman939	0:c746ee34feae	3853
dannyman939	0:c746ee34feae	3854	#endif /* _MULTI_PARTITION == 2 */
dannyman939	0:c746ee34feae	3855	#endif /* _USE_MKFS && !_FS_READONLY */
dannyman939	0:c746ee34feae	3856
dannyman939	0:c746ee34feae	3857
dannyman939	0:c746ee34feae	3858
dannyman939	0:c746ee34feae	3859
dannyman939	0:c746ee34feae	3860	#if _USE_STRFUNC
dannyman939	0:c746ee34feae	3861	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3862	/* Get a string from the file */
dannyman939	0:c746ee34feae	3863	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3864	TCHAR* f_gets (
dannyman939	0:c746ee34feae	3865	TCHAR* buff, /* Pointer to the string buffer to read */
dannyman939	0:c746ee34feae	3866	int len, /* Size of string buffer (characters) */
dannyman939	0:c746ee34feae	3867	FIL* fil /* Pointer to the file object */
dannyman939	0:c746ee34feae	3868	)
dannyman939	0:c746ee34feae	3869	{
dannyman939	0:c746ee34feae	3870	int n = 0;
dannyman939	0:c746ee34feae	3871	TCHAR c, *p = buff;
dannyman939	0:c746ee34feae	3872	BYTE s[2];
dannyman939	0:c746ee34feae	3873	UINT rc;
dannyman939	0:c746ee34feae	3874
dannyman939	0:c746ee34feae	3875
dannyman939	0:c746ee34feae	3876	while (n < len - 1) { /* Read bytes until buffer gets filled */
dannyman939	0:c746ee34feae	3877	f_read(fil, s, 1, &rc);
dannyman939	0:c746ee34feae	3878	if (rc != 1) break; /* Break on EOF or error */
dannyman939	0:c746ee34feae	3879	c = s[0];
dannyman939	0:c746ee34feae	3880	#if _LFN_UNICODE /* Read a character in UTF-8 encoding */
dannyman939	0:c746ee34feae	3881	if (c >= 0x80) {
dannyman939	0:c746ee34feae	3882	if (c < 0xC0) continue; /* Skip stray trailer */
dannyman939	0:c746ee34feae	3883	if (c < 0xE0) { /* Two-byte sequense */
dannyman939	0:c746ee34feae	3884	f_read(fil, s, 1, &rc);
dannyman939	0:c746ee34feae	3885	if (rc != 1) break;
dannyman939	0:c746ee34feae	3886	c = ((c & 0x1F) << 6) \| (s[0] & 0x3F);
dannyman939	0:c746ee34feae	3887	if (c < 0x80) c = '?';
dannyman939	0:c746ee34feae	3888	} else {
dannyman939	0:c746ee34feae	3889	if (c < 0xF0) { /* Three-byte sequense */
dannyman939	0:c746ee34feae	3890	f_read(fil, s, 2, &rc);
dannyman939	0:c746ee34feae	3891	if (rc != 2) break;
dannyman939	0:c746ee34feae	3892	c = (c << 12) \| ((s[0] & 0x3F) << 6) \| (s[1] & 0x3F);
dannyman939	0:c746ee34feae	3893	if (c < 0x800) c = '?';
dannyman939	0:c746ee34feae	3894	} else { /* Reject four-byte sequense */
dannyman939	0:c746ee34feae	3895	c = '?';
dannyman939	0:c746ee34feae	3896	}
dannyman939	0:c746ee34feae	3897	}
dannyman939	0:c746ee34feae	3898	}
dannyman939	0:c746ee34feae	3899	#endif
dannyman939	0:c746ee34feae	3900	#if _USE_STRFUNC >= 2
dannyman939	0:c746ee34feae	3901	if (c == '\r') continue; /* Strip '\r' */
dannyman939	0:c746ee34feae	3902	#endif
dannyman939	0:c746ee34feae	3903	*p++ = c;
dannyman939	0:c746ee34feae	3904	n++;
dannyman939	0:c746ee34feae	3905	if (c == '\n') break; /* Break on EOL */
dannyman939	0:c746ee34feae	3906	}
dannyman939	0:c746ee34feae	3907	*p = 0;
dannyman939	0:c746ee34feae	3908	return n ? buff : 0; /* When no data read (eof or error), return with error. */
dannyman939	0:c746ee34feae	3909	}
dannyman939	0:c746ee34feae	3910
dannyman939	0:c746ee34feae	3911
dannyman939	0:c746ee34feae	3912
dannyman939	0:c746ee34feae	3913	#if !_FS_READONLY
dannyman939	0:c746ee34feae	3914	#include <stdarg.h>
dannyman939	0:c746ee34feae	3915	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3916	/* Put a character to the file */
dannyman939	0:c746ee34feae	3917	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3918	int f_putc (
dannyman939	0:c746ee34feae	3919	TCHAR c, /* A character to be output */
dannyman939	0:c746ee34feae	3920	FIL* fil /* Pointer to the file object */
dannyman939	0:c746ee34feae	3921	)
dannyman939	0:c746ee34feae	3922	{
dannyman939	0:c746ee34feae	3923	UINT bw, btw;
dannyman939	0:c746ee34feae	3924	BYTE s[3];
dannyman939	0:c746ee34feae	3925
dannyman939	0:c746ee34feae	3926
dannyman939	0:c746ee34feae	3927	#if _USE_STRFUNC >= 2
dannyman939	0:c746ee34feae	3928	if (c == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */
dannyman939	0:c746ee34feae	3929	#endif
dannyman939	0:c746ee34feae	3930
dannyman939	0:c746ee34feae	3931	#if _LFN_UNICODE /* Write the character in UTF-8 encoding */
dannyman939	0:c746ee34feae	3932	if (c < 0x80) { /* 7-bit */
dannyman939	0:c746ee34feae	3933	s[0] = (BYTE)c;
dannyman939	0:c746ee34feae	3934	btw = 1;
dannyman939	0:c746ee34feae	3935	} else {
dannyman939	0:c746ee34feae	3936	if (c < 0x800) { /* 11-bit */
dannyman939	0:c746ee34feae	3937	s[0] = (BYTE)(0xC0 \| (c >> 6));
dannyman939	0:c746ee34feae	3938	s[1] = (BYTE)(0x80 \| (c & 0x3F));
dannyman939	0:c746ee34feae	3939	btw = 2;
dannyman939	0:c746ee34feae	3940	} else { /* 16-bit */
dannyman939	0:c746ee34feae	3941	s[0] = (BYTE)(0xE0 \| (c >> 12));
dannyman939	0:c746ee34feae	3942	s[1] = (BYTE)(0x80 \| ((c >> 6) & 0x3F));
dannyman939	0:c746ee34feae	3943	s[2] = (BYTE)(0x80 \| (c & 0x3F));
dannyman939	0:c746ee34feae	3944	btw = 3;
dannyman939	0:c746ee34feae	3945	}
dannyman939	0:c746ee34feae	3946	}
dannyman939	0:c746ee34feae	3947	#else /* Write the character without conversion */
dannyman939	0:c746ee34feae	3948	s[0] = (BYTE)c;
dannyman939	0:c746ee34feae	3949	btw = 1;
dannyman939	0:c746ee34feae	3950	#endif
dannyman939	0:c746ee34feae	3951	f_write(fil, s, btw, &bw); /* Write the char to the file */
dannyman939	0:c746ee34feae	3952	return (bw == btw) ? 1 : EOF; /* Return the result */
dannyman939	0:c746ee34feae	3953	}
dannyman939	0:c746ee34feae	3954
dannyman939	0:c746ee34feae	3955
dannyman939	0:c746ee34feae	3956
dannyman939	0:c746ee34feae	3957
dannyman939	0:c746ee34feae	3958	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3959	/* Put a string to the file */
dannyman939	0:c746ee34feae	3960	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3961	int f_puts (
dannyman939	0:c746ee34feae	3962	const TCHAR* str, /* Pointer to the string to be output */
dannyman939	0:c746ee34feae	3963	FIL* fil /* Pointer to the file object */
dannyman939	0:c746ee34feae	3964	)
dannyman939	0:c746ee34feae	3965	{
dannyman939	0:c746ee34feae	3966	int n;
dannyman939	0:c746ee34feae	3967
dannyman939	0:c746ee34feae	3968
dannyman939	0:c746ee34feae	3969	for (n = 0; *str; str++, n++) {
dannyman939	0:c746ee34feae	3970	if (f_putc(*str, fil) == EOF) return EOF;
dannyman939	0:c746ee34feae	3971	}
dannyman939	0:c746ee34feae	3972	return n;
dannyman939	0:c746ee34feae	3973	}
dannyman939	0:c746ee34feae	3974
dannyman939	0:c746ee34feae	3975
dannyman939	0:c746ee34feae	3976
dannyman939	0:c746ee34feae	3977
dannyman939	0:c746ee34feae	3978	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3979	/* Put a formatted string to the file */
dannyman939	0:c746ee34feae	3980	/-----------------------------------------------------------------------/
dannyman939	0:c746ee34feae	3981	int f_printf (
dannyman939	0:c746ee34feae	3982	FIL* fil, /* Pointer to the file object */
dannyman939	0:c746ee34feae	3983	const TCHAR* str, /* Pointer to the format string */
dannyman939	0:c746ee34feae	3984	... /* Optional arguments... */
dannyman939	0:c746ee34feae	3985	)
dannyman939	0:c746ee34feae	3986	{
dannyman939	0:c746ee34feae	3987	va_list arp;
dannyman939	0:c746ee34feae	3988	BYTE f, r;
dannyman939	0:c746ee34feae	3989	UINT i, j, w;
dannyman939	0:c746ee34feae	3990	ULONG v;
dannyman939	0:c746ee34feae	3991	TCHAR c, d, s[16], *p;
dannyman939	0:c746ee34feae	3992	int res, chc, cc;
dannyman939	0:c746ee34feae	3993
dannyman939	0:c746ee34feae	3994
dannyman939	0:c746ee34feae	3995	va_start(arp, str);
dannyman939	0:c746ee34feae	3996
dannyman939	0:c746ee34feae	3997	for (cc = res = 0; cc != EOF; res += cc) {
dannyman939	0:c746ee34feae	3998	c = *str++;
dannyman939	0:c746ee34feae	3999	if (c == 0) break; /* End of string */
dannyman939	0:c746ee34feae	4000	if (c != '%') { /* Non escape character */
dannyman939	0:c746ee34feae	4001	cc = f_putc(c, fil);
dannyman939	0:c746ee34feae	4002	if (cc != EOF) cc = 1;
dannyman939	0:c746ee34feae	4003	continue;
dannyman939	0:c746ee34feae	4004	}
dannyman939	0:c746ee34feae	4005	w = f = 0;
dannyman939	0:c746ee34feae	4006	c = *str++;
dannyman939	0:c746ee34feae	4007	if (c == '0') { /* Flag: '0' padding */
dannyman939	0:c746ee34feae	4008	f = 1; c = *str++;
dannyman939	0:c746ee34feae	4009	} else {
dannyman939	0:c746ee34feae	4010	if (c == '-') { /* Flag: left justified */
dannyman939	0:c746ee34feae	4011	f = 2; c = *str++;
dannyman939	0:c746ee34feae	4012	}
dannyman939	0:c746ee34feae	4013	}
dannyman939	0:c746ee34feae	4014	while (IsDigit(c)) { /* Precision */
dannyman939	0:c746ee34feae	4015	w = w * 10 + c - '0';
dannyman939	0:c746ee34feae	4016	c = *str++;
dannyman939	0:c746ee34feae	4017	}
dannyman939	0:c746ee34feae	4018	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
dannyman939	0:c746ee34feae	4019	f \|= 4; c = *str++;
dannyman939	0:c746ee34feae	4020	}
dannyman939	0:c746ee34feae	4021	if (!c) break;
dannyman939	0:c746ee34feae	4022	d = c;
dannyman939	0:c746ee34feae	4023	if (IsLower(d)) d -= 0x20;
dannyman939	0:c746ee34feae	4024	switch (d) { /* Type is... */
dannyman939	0:c746ee34feae	4025	case 'S' : /* String */
dannyman939	0:c746ee34feae	4026	p = va_arg(arp, TCHAR*);
dannyman939	0:c746ee34feae	4027	for (j = 0; p[j]; j++) ;
dannyman939	0:c746ee34feae	4028	chc = 0;
dannyman939	0:c746ee34feae	4029	if (!(f & 2)) {
dannyman939	0:c746ee34feae	4030	while (j++ < w) chc += (cc = f_putc(' ', fil));
dannyman939	0:c746ee34feae	4031	}
dannyman939	0:c746ee34feae	4032	chc += (cc = f_puts(p, fil));
dannyman939	0:c746ee34feae	4033	while (j++ < w) chc += (cc = f_putc(' ', fil));
dannyman939	0:c746ee34feae	4034	if (cc != EOF) cc = chc;
dannyman939	0:c746ee34feae	4035	continue;
dannyman939	0:c746ee34feae	4036	case 'C' : /* Character */
dannyman939	0:c746ee34feae	4037	cc = f_putc((TCHAR)va_arg(arp, int), fil); continue;
dannyman939	0:c746ee34feae	4038	case 'B' : /* Binary */
dannyman939	0:c746ee34feae	4039	r = 2; break;
dannyman939	0:c746ee34feae	4040	case 'O' : /* Octal */
dannyman939	0:c746ee34feae	4041	r = 8; break;
dannyman939	0:c746ee34feae	4042	case 'D' : /* Signed decimal */
dannyman939	0:c746ee34feae	4043	case 'U' : /* Unsigned decimal */
dannyman939	0:c746ee34feae	4044	r = 10; break;
dannyman939	0:c746ee34feae	4045	case 'X' : /* Hexdecimal */
dannyman939	0:c746ee34feae	4046	r = 16; break;
dannyman939	0:c746ee34feae	4047	default: /* Unknown type (passthrough) */
dannyman939	0:c746ee34feae	4048	cc = f_putc(c, fil); continue;
dannyman939	0:c746ee34feae	4049	}
dannyman939	0:c746ee34feae	4050
dannyman939	0:c746ee34feae	4051	/* Get an argument and put it in numeral */
dannyman939	0:c746ee34feae	4052	v = (f & 4) ? (ULONG)va_arg(arp, long) : ((d == 'D') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int));
dannyman939	0:c746ee34feae	4053	if (d == 'D' && (v & 0x80000000)) {
dannyman939	0:c746ee34feae	4054	v = 0 - v;
dannyman939	0:c746ee34feae	4055	f \|= 8;
dannyman939	0:c746ee34feae	4056	}
dannyman939	0:c746ee34feae	4057	i = 0;
dannyman939	0:c746ee34feae	4058	do {
dannyman939	0:c746ee34feae	4059	d = (TCHAR)(v % r); v /= r;
dannyman939	0:c746ee34feae	4060	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
dannyman939	0:c746ee34feae	4061	s[i++] = d + '0';
dannyman939	0:c746ee34feae	4062	} while (v && i < sizeof(s) / sizeof(s[0]));
dannyman939	0:c746ee34feae	4063	if (f & 8) s[i++] = '-';
dannyman939	0:c746ee34feae	4064	j = i; d = (f & 1) ? '0' : ' ';
dannyman939	0:c746ee34feae	4065	res = 0;
dannyman939	0:c746ee34feae	4066	while (!(f & 2) && j++ < w) res += (cc = f_putc(d, fil));
dannyman939	0:c746ee34feae	4067	do res += (cc = f_putc(s[--i], fil)); while(i);
dannyman939	0:c746ee34feae	4068	while (j++ < w) res += (cc = f_putc(' ', fil));
dannyman939	0:c746ee34feae	4069	if (cc != EOF) cc = res;
dannyman939	0:c746ee34feae	4070	}
dannyman939	0:c746ee34feae	4071
dannyman939	0:c746ee34feae	4072	va_end(arp);
dannyman939	0:c746ee34feae	4073	return (cc == EOF) ? cc : res;
dannyman939	0:c746ee34feae	4074	}
dannyman939	0:c746ee34feae	4075
dannyman939	0:c746ee34feae	4076	#endif /* !_FS_READONLY */
dannyman939	0:c746ee34feae	4077	#endif /* _USE_STRFUNC */

Repository toolbox

Export to desktop IDE

Build repository

Repository details

Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	02 Apr 2013
Imports:	11
Forks:	1
Commits:	10
Dependents:	0
Dependencies:	1
Followers:	2

FatFileSystem/ff.cpp@9:b45feb91ba38, 2013-04-19 (annotated)

Who changed what in which revision?

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning